United States

Department of

Agriculture

Natural

Resources

Conservation

Service

In cooperation with

Oklahoma Agricultural

Experiment Station and

Oklahoma Conservation

Commission

Soil Survey of

Logan County,

Oklahoma

General Soil Map

The general soil map, which is a color map, shows the survey area divided into

groups of associated soils called general soil map units. This map is useful in planning

the use and management of large areas.

To find information about your area of interest, locate that area on the map, identify

the name of the map unit in the area on the color-coded map legend, then refer to the

section General Soil Map Units for a general description of the soils in your area.

Detailed Soil Maps

The detailed soil maps can be useful in planning the use and management of small

areas.

To find information about your area of interest, locate that area on the Index to Map

Sheets. Note the number of the map sheet and go to that sheet.

Locate your area of interest on the map sheet. Note the map unit symbols that are in

that area. Go to the Contents, which lists the map units by symbol and name and

shows the page where each map unit is described.

The Contents shows which table has data on a specific land use for each detailed

soil map unit. Also see the Contents for sections of this publication that may address

your specific needs.

iii

How To Use This Soil Survey
Additional information about the Nation’s natural resources is available online

from the Natural Resources Conservation Service at http://www.nrcs.usda.gov.

iv

This soil survey is a publication of the National Cooperative Soil Survey, a joint effort

of the United States Department of Agriculture and other Federal agencies, State

agencies including the Agricultural Experiment Stations, and local agencies. The

Natural Resources Conservation Service (formerly the Soil Conservation Service) has

leadership for the Federal part of the National Cooperative Soil Survey.

Major fieldwork for this soil survey was completed in 1992. Soil names and

descriptions were approved in 1994. Unless otherwise indicated, statements in this

publication refer to conditions in the survey area in 1996. This survey was made

cooperatively by the Natural Resources Conservation Service, the Oklahoma

Agricultural Experiment Station, and the Oklahoma Conservation Commission. It is part

of the technical assistance furnished to the Logan County Conservation District.

Soil maps in this survey may be copied without permission. Enlargement of these

maps, however, could cause misunderstanding of the detail of mapping. If enlarged,

maps do not show the small areas of contrasting soils that could have been shown at a

larger scale.

The United States Department of Agriculture (USDA) prohibits discrimination in all its

programs and activities on the basis of race, color, national origin, gender, religion, age,

disability, political beliefs, sexual orientation, and marital or family status. (Not all

prohibited bases apply to all programs.) Persons with disabilities who require alternative

means for communication of program information (Braille, large print, audiotape, etc.)

should contact USDA’s TARGET Center at 202-720-2600 (voice and TDD).

To file a complaint of discrimination, write USDA, Director, Office of Civil Rights,

Room 326-W, Whitten Building, 14th and Independence Avenue, SW, Washington, DC

20250-9410 or call 202-720-5964 (voice and TDD). USDA is an equal opportunity

provider and employer.

Cover: Wheat-alfalfa crop rotation on Lawrie loam, 0 to 1 percent slopes, rarely flooded, near

Langston, Oklahoma.
v

Contents

Cover .............................................................................................................................i

How To Use This Soil Survey ..................................................................................... iii

Contents...................................................................................................................... v

Summary of Tables ..................................................................................................... xi

Foreword ................................................................................................................... xiii

Introduction ................................................................................................................ 1

General Nature of the Survey Area .......................................................................... 2

History ................................................................................................................. 2

Physiography and Drainage ................................................................................. 3

Natural Resources ............................................................................................... 4

Climate ................................................................................................................ 5

Table—Temperature and Precipitation ................................................................. 6

Table—Freeze Dates in Spring and Fall............................................................... 7

Table—Growing Season ...................................................................................... 7

How This Survey Was Made .................................................................................... 8

General Soil Map Units ............................................................................................ 11

1. OK079—Gracemore-Gaddy-Goodnight (Yahola-Gaddy) ................................ 11

2. OK086—Grainola-Lucien-Renfrow (Grainola-Masham-Ironmound) ................ 13

3. OK094—Kirkland-Renfrow-Zaneis (Kirkland-Renfrow) ................................... 15

4. OK112—Port-Pulaski-Ashport (Ashport-Pulaski-Lawrie) ................................ 16

5. OK116—Renfrow-Kirkland-Grainola (Grainola-Renfrow-Piedmont) ................ 18

6. OK121—Teller-Konawa-Norge (Teller-Navina-Konawa) .................................. 20

7. OK141—Dougherty-Eufaula (Dougherty-Konawa-Derby) ............................... 21

8. OK151—Stephenville-Darnell-Newella (Stephenville-Darsil-Harrah) .............. 23

9. OK225—Coyle-Ironmound-Zaneis (Coyle-Ironmound-Zaneis)........................ 25

Detailed Soil Map Units ........................................................................................... 29

Table—Acreage and Proportionate Extent of the Soils .............................................. 31

AspA—Ashport silt loam, 0 to 1 percent slopes, occasionally flooded ................... 33

AstA—Ashport silt loam, 0 to 1 percent slopes, frequently flooded ....................... 33

BetA—Bethany silt loam, 0 to 1 percent slopes ..................................................... 35

BetB—Bethany silt loam, 1 to 3 percent slopes ..................................................... 36

BocA—Bocox loamy fine sand, 0 to 1 percent slopes............................................ 37

BtlA—Bathel loamy sand, 0 to 1 percent slopes .................................................... 37

CaaA—Canadian fine sandy loam, 0 to 1 percent slopes, rarely flooded .............. 38

CAID—Coyle-Ashport-Ironmound complex, 1 to 8 percent slopes ........................ 39

CoIC2—Coyle-Ironmound complex, 3 to 5 percent slopes, eroded ....................... 42

CoUB—Coyle-Urban land complex, 1 to 3 percent slopes .................................... 43

CoUC—Coyle-Urban land complex, 1 to 5 percent slopes .................................... 45

CoyB—Coyle loam, 1 to 3 percent slopes.............................................................. 46

CoyC2—Coyle loam, 3 to 5 percent slopes, eroded .............................................. 47

CoZC3—Coyle and Zaneis soils, 3 to 5 percent slopes, severely eroded ............. 48

DAM—Dam ............................................................................................................ 50

DerB—Derby loamy fine sand, 0 to 3 percent slopes ............................................ 50

DerD—Derby loamy fine sand, 3 to 8 percent slopes ............................................ 51
vi

DerE—Derby loamy fine sand, 8 to 15 percent slopes .......................................... 52

DiRG—Darsil-Rock outcrop complex, 15 to 45 percent slopes.............................. 53

DouB—Dougherty loamy fine sand, 0 to 3 percent slopes .................................... 54

DouD—Dougherty loamy fine sand, 3 to 8 percent slopes .................................... 55

DUM—Dumps ........................................................................................................ 56

EasA—Easpur loam, 0 to 1 percent slopes, occasionally flooded ......................... 56

GadA—Gaddy loamy fine sand, 0 to 1 percent slopes, occasionally flooded ........ 57

GaGA—Gaddy-Gracemore complex, 0 to 1 percent slopes, frequently flooded .... 58

GMGE4—Grainola-Masham-Gullied land complex, 5 to 15 percent slopes .......... 59

GMLG—Grainola-Masham-Lucien complex, 5 to 40 percent slopes, very

bouldery........................................................................................................... 61

GohC—Goodnight loamy fine sand, 1 to 5 percent slopes .................................... 63

GohE—Goodnight loamy fine sand, 5 to 15 percent slopes .................................. 64

GooE—Goodnight fine sand, 1 to 15 percent slopes ............................................. 64

GooG—Goodnight fine sand, 15 to 45 percent slopes .......................................... 65

GraC—Grainola silty clay loam, 3 to 5 percent slopes ........................................... 66

GraD2—Grainola silty clay loam, 5 to 8 percent slopes, eroded ............................ 67

GrHC—Grant-Huska complex, 1 to 5 percent slopes ............................................ 68

GrIE—Grainola-Ironmound complex, 3 to 12 percent slopes ................................. 69

GrLE—Grainola-Lucien complex, 5 to 12 percent slopes ...................................... 71

HaGD4—Harrah-Gullied land complex, 5 to 8 percent slopes ............................... 72

HarC—Harrah fine sandy loam, 3 to 5 percent slopes ........................................... 73

HarC2—Harrah fine sandy loam, 3 to 5 percent slopes, eroded............................ 74

HarG—Harrah fine sandy loam, 3 to 45 percent slopes ........................................ 75

HawB—Hawley loamy fine sand, 0 to 3 percent slopes, rarely flooded ................. 76

ICGD3—Ironmound-Coyle-Grainola complex, 5 to 8 percent slopes, severely

eroded ............................................................................................................. 77

IrCE—Ironmound-Coyle complex, 5 to 15 percent slopes ..................................... 78

IroC2—Ironmound loam, 3 to 5 percent slopes, eroded ........................................ 80

KgfB—Kingfisher silt loam, 1 to 3 percent slopes .................................................. 81

KinC2—Kingfisher loam, 3 to 5 percent slopes, eroded......................................... 81

KonB—Konawa loamy fine sand, 0 to 3 percent slopes ......................................... 82

KonD2—Konawa loamy fine sand, 3 to 8 percent slopes, eroded.......................... 83

KrdA—Kirkland silt loam, 0 to 1 percent slopes ..................................................... 85

KrkB—Kirkland silty clay loam, 1 to 3 percent slopes ............................................ 85

LarA—Lawrie silt loam, 0 to 1 percent slopes, occasionally flooded ...................... 86

LawA—Lawrie loam, 0 to 1 percent slopes, rarely flooded .................................... 87

LerA—Lebron clay, 0 to 1 percent slopes, occasionally flooded ............................ 88

LitB—Littleaxe fine sandy loam, 1 to 3 percent slopes........................................... 89

LitC2—Littleaxe fine sandy loam, 3 to 5 percent slopes, eroded ........................... 90

M-W—Miscellaneous water ................................................................................... 91

MaID—Masham-Ironmound complex, 5 to 15 percent slopes ............................... 91

MaIG—Masham-Ironmound complex, 15 to 40 percent slopes ............................. 93

MinB—Minco very fine sandy loam, 1 to 3 percent slopes .................................... 94

MinC—Minco very fine sandy loam, 3 to 5 percent slopes .................................... 95

MinD—Minco very fine sandy loam, 5 to 8 percent slopes .................................... 96

MinF—Minco very fine sandy loam, 8 to 20 percent slopes................................... 97

MllA—Miller silty clay, 0 to 1 percent slopes, occasionally flooded ........................ 98

MulC—Mulhall loam, 3 to 5 percent slopes ............................................................ 99

MulC2—Mulhall loam, 3 to 5 percent slopes, eroded........................................... 100

NavA—Navina fine sandy loam, 0 to 1 percent slopes ........................................ 101

NavB—Navina fine sandy loam, 1 to 3 percent slopes ........................................ 102

NeGD4—Newalla-Gullied land complex, 3 to 8 percent slopes ........................... 103

NewB—Newalla fine sandy loam, 1 to 3 percent slopes ...................................... 104
vii

NorA—Norge silt loam, 0 to 1 percent slopes ...................................................... 105

NorB—Norge silt loam, 1 to 3 percent slopes ...................................................... 106

NorC2—Norge silt loam, 3 to 5 percent slopes, eroded ....................................... 106

OWHD—Oil waste land-Huska complex, 1 to 8 percent slopes ........................... 107

PieB—Piedmont silty clay loam, 1 to 3 percent slopes ........................................ 109

PieC2—Piedmont silty clay loam, 3 to 5 percent slopes, eroded ......................... 110

PIT—Pits .............................................................................................................. 110

PukA—Pulaski fine sandy loam, 0 to 1 percent slopes, frequently flooded ......... 111

PulA—Pulaski fine sandy loam, 0 to 1 percent slopes, occasionally flooded ....... 112

RenB—Renfrow silt loam, 1 to 3 percent slopes .................................................. 113

RenC—Renfrow silt loam, 3 to 5 percent slopes ................................................. 114

RewC2—Renfrow silty clay loam, 3 to 5 percent slopes, eroded ......................... 115

RinB—Renthin silt loam, 1 to 3 percent slopes .................................................... 116

RnnC2—Renthin silty clay loam, 3 to 5 percent slopes, eroded .......................... 117

SDGD4—Stephenville-Darsil-Gullied land complex, 3 to 8 percent slopes.......... 118

SDND—Stephenville-Darsil-Newalla complex, 3 to 8 percent slopes .................. 119

SDND2—Stephenville-Darsil-Newalla complex, 3 to 8 percent slopes,

eroded ........................................................................................................... 121

SlaB—Slaughterville fine sandy loam, 1 to 3 percent slopes ............................... 123

SlaD—Slaughterville fine sandy loam, 3 to 8 percent slopes ............................... 124

SlaF—Slaughterville fine sandy loam, 8 to 20 percent slopes ............................. 125

StDC—Stephenville-Darsil complex, 1 to 5 percent slopes ................................. 126

StDC2—Stephenville-Darsil complex, 1 to 5 percent slopes, eroded .................. 127

StDE—Stephenville-Darsil complex, 5 to 15 percent slopes ................................ 128

SteB—Stephenville fine sandy loam, 1 to 3 percent slopes ................................. 130

SteC2—Stephenville fine sandy loam, 3 to 5 percent slopes, eroded.................. 131

SUND—Stephenville-Urban land-Newalla complex, 1 to 8 percent slopes .......... 132

TelB—Teller loam, 1 to 3 percent slopes .............................................................. 133

TelC2—Teller loam, 3 to 5 percent slopes, eroded............................................... 134

TriA—Tribbey fine sandy loam, 0 to 1 percent slopes, frequently flooded ............ 135

URB—Urban land ................................................................................................ 136

W—Water............................................................................................................. 136

YaaA—Yahola loam, 0 to 1 percent slopes, occasionally flooded ........................ 137

YahA—Yahola fine sandy loam, 0 to 1 percent slopes, occasionally flooded ....... 138

ZaHC—Zaneis-Huska complex, 3 to 5 percent slopes ........................................ 139

ZanB—Zaneis loam, 1 to 3 percent slopes .......................................................... 140

ZanC—Zaneis loam, 3 to 5 percent slopes .......................................................... 141

ZanC2—Zaneis loam, 3 to 5 percent slopes, eroded ........................................... 142

Use and Management of the Soils ........................................................................ 143

Agronomy............................................................................................................. 143

Land Capability Classification .......................................................................... 144

Table—Land Capability and Yields per Acre of Crops and Pasture ................. 145

Estimated Yields of Crops and Pasture............................................................ 154

Cropland Limitations and Hazards ................................................................... 154

Table—Cropland Limitations and Hazards ....................................................... 157

Prime Farmland ............................................................................................... 167

Table—Prime Farmland ................................................................................... 168

Range .................................................................................................................. 169

Table—Rangeland Productivity and Characteristic Plant Communities ............... 172

Similarity Index ................................................................................................ 192

Rangeland Management ................................................................................. 192

Ecological Sites ............................................................................................... 193

Windbreaks and Environmental Plantings............................................................ 196

Table—Windbreaks and Environmental Plantings................................................ 198
viii

Recreation............................................................................................................ 212

Table—Recreational Development, Part I ............................................................ 214

Table—Recreational Development, Part II ........................................................... 226

Engineering .......................................................................................................... 235

Sanitary Facilities............................................................................................. 235

Table—Sanitary Facilities, Part I ...................................................................... 238

Table—Sanitary Facilities, Part II ..................................................................... 251

Building Site Development ............................................................................... 261

Table—Building Site Development, Part I ........................................................ 263

Table—Building Site Development, Part II ....................................................... 273

Construction Materials ..................................................................................... 287

Table—Construction Materials, Part I .............................................................. 289

Table—Construction Materials, Part II ............................................................. 298

Water Management ......................................................................................... 313

Table—Water Management ............................................................................. 314

Agricultural Waste Management ...................................................................... 324

Table—Agricultural Waste Management, Part I ............................................... 327

Table—Agricultural Waste Management, Part II .............................................. 347

Soil Properties ........................................................................................................ 367

Engineering Index Properties ............................................................................... 367

Table—Engineering Index Properties ................................................................... 369

Engineering Index Test Data ................................................................................ 413

Table—Engineering Index Test Data of Selected Soils......................................... 414

Physical Properties .............................................................................................. 415

Table—Physical Properties of the Soils ............................................................... 418

Physical Analyses of Selected Soils .................................................................... 438

Table—Physical Properties of Selected Soils ...................................................... 439

Chemical Properties ............................................................................................ 444

Table—Chemical Properties of the Soils .............................................................. 445

Chemical Analyses of Selected Soils ................................................................... 460

Table—Chemical Properties of Selected Soils ..................................................... 461

Water Features .................................................................................................... 466

Table—Water Features ........................................................................................ 468

Soil Features ........................................................................................................ 480

Table—Soil Features ............................................................................................ 481

Classification of the Soils ..................................................................................... 487

Table—Classification of the Soils ............................................................................. 488

Soil Series and Their Morphology ............................................................................ 489

Ashport Series ..................................................................................................... 489

Bathel Series........................................................................................................ 491

Bethany Series..................................................................................................... 494

Bocox Series ........................................................................................................ 497

Canadian Series .................................................................................................. 499

Coyle Series......................................................................................................... 501

Darsil Series ........................................................................................................ 504

Derby Series ........................................................................................................ 505

Dougherty Series ................................................................................................. 507

Easpur Series ...................................................................................................... 509

Gaddy Series ....................................................................................................... 511

Goodnight Series ................................................................................................. 512

Gracemore Series ................................................................................................ 513

Grainola Series .................................................................................................... 515

Grant Series ......................................................................................................... 517

Harrah Series ....................................................................................................... 519
ix

Hawley Series ...................................................................................................... 521

Huska Series ....................................................................................................... 522

Ironmound Series................................................................................................. 524

Kingfisher Series .................................................................................................. 526

Kirkland Series ..................................................................................................... 528

Konawa Series ..................................................................................................... 532

Lawrie Series ....................................................................................................... 535

Lebron Series....................................................................................................... 538

Littleaxe Series .................................................................................................... 540

Lucien Series ....................................................................................................... 542

Masham Series .................................................................................................... 544

Miller Series ......................................................................................................... 545

Minco Series ........................................................................................................ 547

Mulhall Series ...................................................................................................... 548

Navina Series....................................................................................................... 551

Newalla Series ..................................................................................................... 553

Norge Series ........................................................................................................ 556

Piedmont Series................................................................................................... 558

Pulaski Series ...................................................................................................... 560

Renfrow Series .................................................................................................... 562

Renthin Series ..................................................................................................... 564

Slaughterville Series ............................................................................................ 567

Stephenville Series .............................................................................................. 568

Teller Series ......................................................................................................... 570

Tribbey Series ...................................................................................................... 572

Yahola Series ....................................................................................................... 573

Zaneis Series ....................................................................................................... 575

Formation of the Soils ........................................................................................... 579

Factors of Soil Formation ..................................................................................... 579

Climate ............................................................................................................ 579

Living Organisms ............................................................................................. 579

Topography ...................................................................................................... 579

Parent Material ................................................................................................ 580

Time ................................................................................................................. 580

Geology................................................................................................................ 580

References .............................................................................................................. 585

Glossary .................................................................................................................. 587

Issued 2006

xi

Summary of Tables

Temperature and Precipitation ..................................................................................... 6

Freeze Dates in Spring and Fall ................................................................................... 7

Growing Season ........................................................................................................... 7

Acreage and Proportionate Extent of the Soils .......................................................... 31

Land Capability and Yields Per Acre of Crops and Pasture ...................................... 145

Cropland Limitations and Hazards ........................................................................... 157

Prime Farmland ........................................................................................................ 168

Rangeland Productivity and Characteristic Plant Communities ............................... 172

Windbreaks and Environmental Plantings ................................................................ 198

Recreational Development, Part I ............................................................................. 214

Recreational Development, Part II ............................................................................ 226

Sanitary Facilities, Part I ........................................................................................... 238

Sanitary Facilities, Part II.......................................................................................... 251

Building Site Development, Part I ............................................................................. 263

Building Site Development, Part II ............................................................................ 273

Construction Materials, Part I ................................................................................... 289

Construction Materials, Part II .................................................................................. 298

Water Management .................................................................................................. 314

Agricultural Waste Management, Part I .................................................................... 327

Agricultural Waste Management, Part II ................................................................... 347

Engineering Index Properties ................................................................................... 369

Engineering Index Test Data of Selected Soils ......................................................... 414

Physical Properties of the Soils ................................................................................ 418

Physical Properties of Selected Soils ....................................................................... 439

Chemical Properties of the Soils .............................................................................. 445

Chemical Properties of Selected Soils ..................................................................... 461

Water Features ......................................................................................................... 468

Soil Features ............................................................................................................ 481

Classification of the Soils ......................................................................................... 488

xiii

This soil survey contains information that can be used in land-planning programs in

Logan County. It contains predictions of soil behavior for selected land uses. The

survey also highlights limitations and hazards inherent in the soil, improvements

needed to overcome the limitations, and the impact of selected land uses on the

environment.

This soil survey is designed for many different users. Farmers, ranchers, foresters,

and agronomists can use it to evaluate the potential of the soil and the management

needed for maximum food and fiber production. Planners, community officials,

engineers, developers, builders, and home buyers can use the survey to plan land

use, select sites for construction, and identify special practices needed to ensure

proper performance. Conservationists, teachers, students, and specialists in

recreation, wildlife management, waste disposal, and pollution control can use the

survey to help them understand, protect, and enhance the environment.

Great differences in soil properties can occur within short distances. Some soils are

seasonally wet or subject to flooding. Some are shallow to bedrock. Some are too

unstable to be used as a foundation for buildings or roads. Clayey or wet soils are

poorly suited to use as septic tank absorption fields. A high water table makes a soil

poorly suited to basements or underground installations.

These and many other soil properties that affect land use are described in this soil

survey. Broad areas of soils are shown on the general soil map. The location of each

soil is shown on the detailed soil maps. Each soil in the survey area is described.

Information on specific uses is given for each soil. Help in using this publication and

additional information is available at the local office of the Natural Resources

Conservation Service or the Cooperative Extension Service.

M. Darrel Dominick

State Conservationist

Natural Resources Conservation Service

Foreword

1

LOGAN COUNTY is located in central Oklahoma (fig. 1). It has an area of about

479,418 acres, or 749 square miles. The population of the county is about 29,000.

Guthrie, the county seat, is located in the central part of the county and has a

population of 10,500. Guthrie Lake, Liberty Lake, and other bodies of water larger than

40 acres in size make up about 999 acres. Logan County is bounded on the north by

Garfield, Noble, and Payne Counties, on the east by Lincoln and Payne Counties, on

the south by Oklahoma County, and on the west by Kingfisher County.

About 27 percent of Logan County is cropland, 13 percent is pastureland, 40

percent is rangeland, 12 percent is woodland, 7 percent is urban land and roads, and

1 percent is water. About 21 percent of the county is prime farmland.

The eastern one-third of Logan County is rolling and hilly uplands with long,

narrow, very gently sloping to moderately sloping summits. The drainage system

deeply dissects the uplands, forming broad, gently sloping to steep side slopes with

narrow flood plains. The native vegetation consists of a savannah of post oak and

blackjack oak with an understory of tall and mid grasses. The main agricultural

enterprise is cattle production. Cattle are grazed mainly on native grasses and

some improved pastureland. In these areas, cultivated cropland is on narrow flood

plains and a few summits. Alfalfa, wheat, and grain sorghum are the main cultivated

crops.

The western two-thirds of the county consists of nearly level to rolling uplands with

broad, nearly level and very gently sloping summits. The drainage system dissects the

uplands, forming the long, broad, gently sloping to moderately steep side slopes with

wide flood plains. Steep rock escarpments in some areas break the side slopes from

the flood plains on many of the major streams. The native vegetation consists of mid

and tall rangeland grasses. The main agricultural enterprises are cattle and wheat

production. Cattle are grazed mainly on native grasses and some improved

pastureland on the side slopes. Wheat and grain sorghum are grown on the summits

and gently sloping side slopes. Wheat, grain sorghum, and alfalfa are grown on the

wide flood plains.

This soil survey updates the survey of Logan County published in 1960 (6). It

provides additional information and has larger maps, which show the soils in greater

detail.

Soil Survey of

Logan County, Oklahoma

Fieldwork by R. Clay Wilson, Carl E. Woods, Jr., and Don Gastino, Natural Resources

Conservation Service

United States Department of Agriculture, Natural Resources Conservation Service,

in cooperation with

Oklahoma Agricultural Experiment Station and Oklahoma Conservation Commission
2 Soil Survey

General Nature of the Survey Area

This section gives general information about Logan County. It discusses the history,

physiography and drainage, natural resources, and climate of the survey area.

History

Prior to settlement by European immigrants, Native Americans used the survey

area as hunting grounds. The survey area was first settled in 1889, when unassigned

lands of the Indian Territory were opened to non-Indian settlement by Presidential

proclamation. Fifteen of eighteen townships were settled at that time. Three other

townships were settled in 1891, when Iowa, Sac and Fox, Kickapoo, and Pottawatomie

Indian lands were opened to homesteading.

The Organic Act of 1890 provided territorial government in the form of county,

township, and city governments. Prior to that time, communities elected their own

government and relied on United States marshals for law enforcement. Logan County

was named in honor of Senator John Logan of Illinois, who was a Union General in the

Civil War. Guthrie was designated by the Act as the county seat and territorial capitol.

The first 50 years of agriculture in the survey area were generally exploitive. Row

crops were grown until fields became eroded and depleted of nutrients. Most fields

were cropped with little or no management for the prevention of erosion. Topsoil

quickly eroded, and fields were permanently damaged. Damaged fields were

abandoned and allowed to return to native vegetation. In the late 1920’s, agriculture

began to change from row crops to close-growing small grains. Today, continuous

small grain production is the dominant cropping system in Logan County. The majority

of agricultural lands in Logan County are managed for native grassland, pastureland,

and hayland for use in cattle production.

Langston University was authorized by the Oklahoma Territorial Legislature on

March 12, 1897. The legislature named the University the “Colored Agriculture and

Normal University of Oklahoma.” The citizens of Langston supported the new

university by securing faculty, land, and funds with the goal of providing instruction in

the art of teaching and in the agricultural, mechanical, and industrial arts. In 1941, the

university was renamed Langston University after John Mercer Langston (1829-1897),

a distinguished educator and member of Congress. Today, Langston University

provides education in agriculture as well as many other fields.

In 1929, the Red Plains Experiment Station was established by the Buchanan

Amendments of 1929. The primary objectives of the station were to measure soil

erosion and determine methods for controlling erosion. The Red Plains Experiment

Station was significant in developing conservation practices that are still used today.

In 1938, the Cottonwood Creek Soil Conservation District was formed. The

Figure 1.—Location of Logan County in Oklahoma.
Logan County, Oklahoma 3

Cottonwood Creek Soil Conservation District was later named the Logan County

Conservation District. The Logan County Conservation District has sponsored three

watershed projects. The district is actively taking part in the conservation of natural

resources in Logan County.

Physiography and Drainage

Logan County is within two different major land resource areas (MLRAs). The

eastern one-third of the county is in the Northern Cross Timbers Major Land Resource

Area (MLRA 84A), and the western two-thirds is in the Central Rolling Red Prairies

Major Land Resource Area (MLRA 80A).

The physiography of Logan County is strongly influenced by the drainage patterns

of the Cimarron River, along with those of Bear Creek, Beaver Creek, Cottonwood

Creek, and Skeleton Creek. Beaver, Cottonwood, and Skeleton Creeks drain into the

Cimarron River. Bear Creek is a tributary of the Deep Fork River. The Cimarron River

drains eastward, Cottonwood Creek drains northeastward, and Beaver, Skeleton, and

Bear Creeks drain to the southeast. The entire county is within the Arkansas River

drainage system.

Surface features within the Northern Cross Timbers MLRA include both uplands

and flood plains. The uplands are characterized by moderate to prominent relief with

narrow, very gently sloping to sloping, convex summits and shoulders and broad,

sloping to steep backslopes. The summits are capped (and maintained) by erosionresistant sandstones. The landscape is deeply dissected, and heads of drainageways

may incise the sandstone summits. Where streams join, narrow flood plains form. The

native vegetation consists of a savannah of post oak and blackjack oak with an

understory of mid and tall grasses. Long and narrow, native grass prairies associated

with calcareous shale outcrops occur in areas of prominent relief.

Flood plains within the northern one-third of the Northern Cross Timbers MLRA are

associated with minor streams, particularly Fitzgerald, Soldier, and Walnut Creeks,

which drain north into the Cimarron River. Streams within the southern two-thirds of

the Northern Cross Timbers MLRA, including Bear, Coon, and Falls Creeks, drain to

the southeast. These nearly level flood plains are flanked by very gently undulating

natural levees. Soils in the upper part of the drainage system frequently have a high

water table. The native vegetation consists of prairie grasses with a few scattered

bottomland hardwood trees.

Surface features within the Central Rolling Red Prairies MLRA include uplands,

uplands mantled with ancient terrace treads, risers and treads on stream terraces,

dune fields, and flood plains. Upland landscapes occur in the central part of the county

and are characterized by low or moderate relief with smooth, very gently sloping to

sloping, convex summits, shoulders, and backslopes. Summits are typically capped

(and maintained) by erosion-resistant sandstones. Soil parent materials include

sandstones, siltstones, mudstones, and shales as well as alluvial and eolian

sediments. The landscape is dissected by long, narrow drainageways, and heads of

drainageways may incise and dissect the sandstone summits. The native vegetation

consists of prairie grasses and forbs.

Uplands mantled with ancient terrace treads occur in the extreme northwestern part

of Logan County and on the high divide along the interfluve between the Cimarron

River and Cottonwood Creek in the southwestern part of the county. These low-relief

landforms are characterized by smooth, nearly level to gently sloping, slightly convex

to slightly concave summits, convex shoulders, and convex backslopes. Drainageways

that dissect this area are long and narrow and create a very gently rolling landscape.

The native vegetation consists of prairie grasses and forbs.

Riser and tread positions on stream terraces are associated with the Cimarron

River and its major tributaries, including Cottonwood, Skeleton, and Beaver Creeks.
4 Soil Survey

The terrace treads and risers are characterized by low or moderate relief. Tread

positions are smooth, slightly convex to slightly concave, and nearly level or very

gently sloping. Riser positions are very gently sloping to sloping and have a convex

slope shape. Drainageways that dissect this area are long and narrow and create a

gently rolling landscape. The native vegetation consists of prairie grasses and forbs.

Dunes are associated with sandy treads and risers that have been reworked by the

wind on stream terraces of the Cimarron River. The dunal area is north of the

Cimarron River in the west-central part of the county and is characterized by low or

moderate relief. Undulating to rolling dunes blanket nearly level treads and sloping

risers on (generally) the lowest stream terrace levels. Drainageways that dissect this

area are long and narrow and create a gently rolling landscape. The soils within the

drainageways have a high water table. The native vegetation consists of an oak

savannah.

Flood plains of the Central Rolling Red Prairies MLRA are associated with Beaver

Creek and Skeleton Creek to the north, Cottonwood Creek to the south, and the

Cimarron River in the central part of the county. The general direction of drainage is

eastward. The nearly level flood plains of Beaver, Skeleton, and Cottonwood Creeks

are characterized by low relief with very gently undulating natural levees and are

dissected by perennial and intermittent streams. Natural vegetation consists of prairie

grasses with a few scattered bottomland hardwood trees. The nearly level flood plain

of the Cimarron River is also characterized by low relief with gently undulating natural

levees and depressions in some areas where water can pond. The landscape is

interrupted by long linear sand dunes that parallel the river channel. The native

vegetation consists of prairie grasses with scattered bottomland hardwoods.

The lowest point in Logan County is about 850 feet above sea level and is within the

Cimarron River drainage system in the eastern part of the county. The highest point,

1,280 feet above sea level, is south of the town of Guthrie on the divide between the

drainage systems of the Cimarron and North Canadian Rivers.

Natural Resources

The mineral and water resources of Logan County are important to the overall

development and progress of the county. Petroleum production is by far the most

important mineral-related commercial activity. In 1993, petroleum production in Logan

County amounted to about 1.1 million barrels of crude oil (valued at nearly $18.7

million) and about 12 billion cubic feet of natural gas (valued at $22.6 million). Due to

these production levels, Logan County ranks near the middle of the petroleumproducing counties in Oklahoma.

Sand and gravel have been produced from a number of sites in the alluvial and

terrace deposits of the county. Some of the sandstone and siltstone beds may locally

be suitable for use as building and fill material.

Abundant quantities of good-quality ground water occur in Quaternary alluvial and

terrace deposits as well as in the extremely important Garber-Wellington aquifer that

underlies much of the southern part of the county. The Garber-Wellington aquifer

covers permeable sandstone layers of both the entire Garber Sandstone section and

the upper part of the underlying Wellington Formation. The saturated thickness of this

aquifer ranges from about 500 to 700 feet.

Water wells in the Garber-Wellington aquifer commonly yield 25 to 100 gallons per

minutes (GPM) of fresh water that contains only 200 to 500 milligrams per liter (Mg/L)

of dissolved solids. The aquifer is recharged by precipitation and runoff that percolates

down through the soil into the porous and permeable sandstones of the Garber

Sandstone and the Wellington Formation. Ground water then percolates slowly

downward and/or laterally dips down (westward) within the sandstone layers. The

aquifer water is salty in the lower part of the Wellington Formation and farther west
Logan County, Oklahoma 5

where the Garber Sandstone extends beneath Kingfisher County (refer to the eastwest cross section of the surface geology map). Where the Garber Sandstone and the

Wellington Formation crop out, ground water generally is found in any permeable

sandstone bed at or below the ground-water surface. Farther west, where the relatively

impermeable Hennessey Group overlies the Garber Sandstone, wells still must be

drilled down into the water-bearing sands of the Garber-Wellington aquifer. Upon

encountering a fresh-water sand, the water will be forced up the drill hole several

hundred feet under artesian pressure to the potentiometric surface, approximately 100

to 200 feet below the land surface. Since the Garber Sandstone and the Wellington

Formation are more shaley to the north, the yield of the aquifer decreases northward

across the county. Fresh water still occurs in the sands (the same as it does farther

south), but the sands are less abundant and the yields typically are 5 to 40 GPM.

Water wells in alluvial and terrace deposits locally yield 25 to 50 GPM, while wells in

the prolific Cimarron River terrace aquifer in the west-central part of the county yield

150 to 700 GPM. The water quality in most of these aquifers includes 300 to 1,000

Mg/L of dissolved solids (3, 4).

See the “Geology” section for more information on the geologic formations in the

survey area.

Climate

Logan County is hot in summer but cool in winter, when an occasional surge of cold

air causes a sharp drop in otherwise mild temperatures. Rainfall is uniformly

distributed throughout the year, reaching a slight peak in spring. Snowfalls are

infrequent. Annual total precipitation is normally adequate for cotton, feed grains, and

small grains.

The table “Temperature and Precipitation” gives data on temperature and

precipitation for the survey area as recorded at Guthrie, Oklahoma, in the period 1951

to 1990. The table “Freeze Dates in Spring and Fall” shows probable dates of the first

freeze in fall and the last freeze in spring. The table “Growing Season” provides data

on the length of the growing season.

In winter, the average temperature is 39 degrees F and the average daily minimum

temperature is 28 degrees. The lowest temperature on record, which occurred at

Guthrie on December 23, 1989, is -13 degrees. In summer the average temperature is

93 degrees. The highest recorded temperature, which occurred on August 21 1981, is

112 degrees.

Growing degree days are shown in the table “Temperature and Precipitation.” They

are equivalent to “heat units.” During the month, growing degree days accumulate by

the amount that the average temperature each day exceeds a base temperature

(50 degrees F). The normal monthly accumulation is used to schedule single or

successive plantings of a crop between the last freeze in spring and the first freeze in

fall.
6 Soil Survey

Temperature and Precipitation

(Data recorded in the period 1951-1990 at Guthrie, Oklahoma)

____________________________________________________________________________________________________

 | |

 | Temperature | Precipitation __________________________________________________________________________________________

 | | | | 2 years in | | |2 years in 10| |

 Month | | | | 10 will have-- | Average | | will have-- | Average | Aver- _________________ _____________

 |Average|Average|Average| Maximum|Minimum |number of|Average| | |number of| age

 | daily | daily | | temp. | temp. | growing | | Less | More |days with| snow-

 |maximum|minimum| | higher | lower | degree | |than--|than--|0.10 inch| fall

 | | | | than-- | than-- | days* | | | | or more | ____________________________________________________________________________________________________

 | oF | oF | oF | oF | o __ __ __ __ __ _____ __ __ __ __ F | Units | In | In | In | | In

 | | | | | | | | | | |

January--| 48.6 | 24.9 | 36.8 | 75 | -2 | 23 | 1.04 | 0.19| 1.69| 2 | 2.4

 | | | | | | | | | | |

February-| 54.0 | 29.3 | 41.7 | 80 | 3 | 41 | 1.58 | 0.45| 2.46| 4 | 2.0

 | | | | | | | | | | |

March----| 63.2 | 37.6 | 50.4 | 89 | 13 | 145 | 2.61 | 0.81| 4.06| 5 | 0.8

 | | | | | | | | | | |

April----| 73.9 | 48.7 | 61.3 | 92 | 26 | 350 | 2.59 | 1.01| 3.89| 5 | 0.0

 | | | | | | | | | | |

May------| 81.4 | 57.7 | 69.6 | 95 | 37 | 608 | 5.16 | 1.91| 7.73| 7 | 0.0

 | | | | | | | | | | |

June-----| 89.5 | 66.5 | 78.0 | 102 | 50 | 840 | 4.10 | 1.69| 5.97| 6 | 0.0

 | | | | | | | | | | |

July-----| 95.3 | 70.9 | 83.1 | 108 | 56 | 1,026 | 2.59 | 0.62| 4.06| 4 | 0.0

 | | | | | | | | | | |

August---| 94.9 | 69.6 | 82.3 | 107 | 54 | 1,001 | 2.39 | 0.92| 3.59| 4 | 0.0

 | | | | | | | | | | |

September| 86.5 | 61.9 | 74.2 | 103 | 40 | 726 | 3.99 | 1.26| 6.23| 5 | 0.0

 | | | | | | | | | | |

October--| 75.5 | 50.0 | 62.8 | 94 | 28 | 397 | 2.95 | 0.71| 4.63| 4 | 0.0

 | | | | | | | | | | |

November-| 61.7 | 37.8 | 49.8 | 81 | 15 | 104 | 2.01 | 0.39| 3.21| 4 | 0.2

 | | | | | | | | | | |

December-| 51.4 | 28.3 | 39.9 | 75 | 0 | 37 | 1.40 | 0.41| 2.12| 3 | 1.2

 | | | | | | | | | | |

 | | | | | | | | | | |

Yearly: | | | | | | | | | | |

 | | | | | | | | | | |

 Average-| 73.0 | 48.6 | 60.8 | --- | --- | --- | --- | ---| ---| --- | ---

 | | | | | | | | | | |

 Extreme-| --- | --- | --- | 109 | -5 | --- | --- | ---| ---| --- | ---

 | | | | | | | | | | |

 Total---| --- | --- | --- | --- | --- | 5,298 | 32.41 | 25.77| 39.51| 53 | 6.6

 | | | | | | | | | | | ____________________________________________________________________________________________________

 * A growing degree day is a unit of heat available for plant growth. It can be calculated by

adding the maximum and minimum daily temperatures, dividing the sum by 2, and subtracting the

temperature below which growth is minimal for the principal crops in the area (50 degrees F).
Logan County, Oklahoma 7

Freeze Dates in Spring and Fall

(Data recorded in the period 1951-1990 at Guthrie, Oklahoma)

____________________________________________________________

 |

 | Temperature _________________________________________

 Probability | | |

 | 24 oF | 28 oF | 32 oF

 | or lower | or lower | or lower ____________________________________________________________

 | | |

Last freezing | | |

 temperature | | |

 in spring: | | |

 | | |

 1 year in 10 | | |

 later than-- | Apr. 2 | Apr. 11 | Apr. 22

 | | |

 2 years in 10 | | |

 later than-- | Mar. 27 | Apr. 6 | Apr. 17

 | | |

 5 years in 10 | | |

 later than-- | Mar. 16 | Mar. 27 | Apr. 8

 | | |

First freezing | | |

 temperature | | |

 in fall: | | |

 | | |

 1 year in 10 | | |

 earlier than-- | Oct. 29 | Oct. 22 | Oct. 12

 | | |

 2 years in 10 | | |

 earlier than-- | Nov. 4 | Oct. 28 | Oct. 18

 | | |

 5 years in 10 | | |

 earlier than-- | Nov. 16 | Nov. 9 | Oct. 28

 | | | ____________________________________________________________

Growing Season

(Data recorded in the period 1951-1990 at Guthrie, Oklahoma)

____________________________________________________________

 |

 | Daily minimum temperature

 Probability | during growing season ___________________________________________

 | Higher | Higher | Higher

 | than | than | than

 | 24 oF | 28 oF | 32 o ____________________________________________________________ F

 | Days | Days | Days ____ ____ ____

 | | |

 9 years in 10 | 216 | 202 | 179

 | | |

 8 years in 10 | 226 | 210 | 187

 | | |

 5 years in 10 | 244 | 227 | 202

 | | |

 2 years in 10 | 262 | 243 | 218

 | | |

 1 year in 10 | 272 | 251 | 226

 | | | ____________________________________________________________
8 Soil Survey

How This Survey Was Made

This survey was made to provide information about the soils and miscellaneous

areas in the survey area. The information includes a description of the soils and

miscellaneous areas and their location and a discussion of their specified uses. Soil

scientists observed the suitability, limitations, and management for specified uses.

They observed the steepness, length, and shape of the slopes; the general pattern of

drainage; the kinds of crops and native plants; and the kinds of bedrock. They dug

many holes to study the soil profile, which is the sequence of natural layers, or

horizons, in a soil. The profile extends from the surface down into the unconsolidated

material in which the soil formed. The unconsolidated material is devoid of roots and

other living organisms and has not been changed by other biological activity.

The soils and miscellaneous areas in the survey area are in an orderly pattern that

is related to the geology, landforms, relief, climate, and natural vegetation of the area.

Each kind of soil and miscellaneous area is associated with a particular kind or

segment of the landscape. By observing the soils and miscellaneous areas in the

survey area and relating their position to specific segments of the landscape, soil

scientists develop a concept, or model, of how the soils were formed. Thus, during

mapping, this model enables the soil scientists to predict with a considerable degree of

accuracy the kind of soil or miscellaneous area at a specific location on the landscape.

Individual soils on the landscape commonly merge into one another as their

characteristics gradually change. To construct an accurate map, however, soil

scientists must determine the boundaries between the soils. They can observe only a

limited number of soil profiles. Nevertheless, these observations, supplemented by an

understanding of the soil-vegetation-landscape relationship, are sufficient to verify

predictions of the kinds of soil in an area and to determine the boundaries.

Soil scientists recorded the characteristics of the soil profiles that they studied. They

noted color, texture, size and shape of soil aggregates, kind and amount of rock

fragments, distribution of plant roots, reaction, and other features that enable them to

identify soils. After describing the soils in the survey area and determining their

properties, the soil scientists assigned the soils to taxonomic classes (units).

Taxonomic classes are concepts. Each taxonomic class has a set of soil

characteristics with precisely defined limits. The classes are used as a basis for

comparison to classify soils systematically. Soil taxonomy, the system of taxonomic

classification used in the United States, is based mainly on the kind and character of

soil properties and the arrangement of horizons within the profile. After the soil

scientists classified and named the soils in the survey area, they compared the

individual soils with similar soils in the same taxonomic class in other areas so that

they could confirm data and assemble additional data based on experience and

research.

While a soil survey is in progress, samples of some of the soils in the area generally

are collected for laboratory analyses and for engineering tests. Soil scientists interpret

the data from these analyses and tests as well as the field-observed characteristics

and the soil properties to determine the expected behavior of the soils under different

uses. Interpretations for all of the soils are field tested through observation of the soils

in different uses and under different levels of management. Some interpretations are

modified to fit local conditions, and some new interpretations are developed to meet

local needs. Data are assembled from other sources, such as research information,

production records, and field experience of specialists. For example, data on crop

yields under defined levels of management are assembled from farm records and from

field or plot experiments on the same kinds of soil.

Predictions about soil behavior are based not only on soil properties but also on

such variables as climate and biological activity. Soil conditions are predictable over

long periods of time, but they are not predictable from year to year. For example, soil
Logan County, Oklahoma 9

scientists can predict with a fairly high degree of accuracy that a given soil will have a

high water table within certain depths in most years, but they cannot predict that a high

water table will always be at a specific level in the soil on a specific date.

After soil scientists located and identified the significant natural bodies of soil in the

survey area, they drew the boundaries of these bodies on aerial photographs and

identified each as a specific map unit. Aerial photographs show trees, buildings, fields,

roads, and rivers, all of which help in locating boundaries accurately.

The descriptions, names, and delineations of the soils in this survey area do not

fully agree with those of the soils in adjacent survey areas. Differences are the result

of a better knowledge of soils, modifications in series concepts, or variations in the

intensity of mapping or in the extent of the soils in the survey areas.

11

The general soil map shows broad areas that have a distinctive pattern of soils,

relief, and drainage. Each map unit on the general soil map is a unique natural

landscape. Typically, it consists of one or more major soils and/or miscellaneous areas

and some minor soils and/or miscellaneous areas. It is named for the major soils or

miscellaneous areas. The soils or miscellaneous areas making up one unit can occur

in another but in a different pattern.

The general soil map is part of the State Soil Geographic Data Base (STATSGO). It

is at a scale of 1 to 250,000. It should not be used to locate soils for intensive land

uses, such as determining suitability for house lots. It is useful for understanding the

soil resource and for planning broad land uses in a state or region. The component

composition of a STATSGO map unit does not statistically represent a subset (county)

or any one portion of the whole STATSGO map unit. A STATSGO map unit may have

up to 3 named components, but any one particular area within the STATSGO map unit

may not consist of all named components or the components of the entire STATSGO

map unit.

The general soil map in this survey reflects the STATSGO composition of the

county subset. The subset name of a general soil map unit may vary from county

to county, but it is within the parameters of the entire STATSGO map unit. In the

legend for the general soil map, the STATSGO map unit name is listed first and the

county general soil map unit name is listed directly below. In the text, the STATSGO

map unit name is listed first and the county general soil map unit name is listed directly

after it.

The general soil map can be used to compare the suitability of large areas for

general land uses. Areas of suitable soils or miscellaneous areas can be identified on

the map. Likewise, areas that are not suitable can be identified.

Because of its small scale, the map is not suitable for planning the management of

a farm or field or for selecting a site for a road or building or other structure. The soils

in any one map unit differ from place to place in slope, depth, drainage, and other

characteristics that affect management.

1. OK079—Gracemore-Gaddy-Goodnight

(Yahola-Gaddy)

Very deep, nearly level, well drained and somewhat excessively drained, loamy and

sandy soils that formed in recent alluvial sediment on flood plains

Setting

Location in the survey area: Low flood plains of the Cimarron River

Primary landscape: Valleys

Slope range: 0 to 1 percent

General Soil Map Units
12 Soil Survey

Composition

Extent of map unit in the survey area: 4 percent

Extent of the components in the map unit:

Yahola soils—38 percent

Gaddy soils—37 percent

Minor soils (including Lebron and Gracemore)—25 percent

Soil Characteristics

Yahola

Surface layer: Yellowish red sandy loam

Underlying material: Red fine sandy loam and stratified fine sandy loam

Depth class: Very deep

Drainage class: Well drained

Seasonal high water table: None

Major landform: Low flood plains

Slope range: 0 to 1 percent

Parent material: Loamy alluvium

Gaddy

Surface layer: Brown loamy fine sand

Underlying material: Stratified reddish brown loam and stratified pink and pinkish white

fine sand

Depth class: Very deep

Drainage class: Somewhat excessively drained

Seasonal high water table: None

Major landform: Low flood plains

Slope range: 0 to 1 percent

Parent material: Loamy and sandy alluvium

Use and Management

Major Uses: Cropland, pastureland, rangeland, and urban land

Cropland

Suitability: Yahola—well suited; Gaddy—poorly suited

Management concerns: Flooding, tilth, soil fertility, and maintenance of organic matter

content

Rangeland

Suitability: Suited

Management concerns: Weed control, tilth, soil fertility, and rotational grazing

Pasture and hayland

Suitability: Yahola—well suited; Gaddy—suited

Management concerns: Tilth, soil fertility, and flooding

Urban development

Suitability: Poorly suited

Management concerns: Flooding, seepage, and soil stability
Logan County, Oklahoma 13

2. OK086—Grainola-Lucien-Renfrow (Grainola-MashamIronmound)

Moderately deep and shallow, well drained, gently sloping to steep soils that formed in

material weathered from shale or sandstone on prairie uplands (fig. 2)

Setting

Location in the survey area: Northwestern and eastern parts of the county

Primary landscape: Uplands

Slope range: 3 to 40 percent

Composition

Extent of map unit in the survey area: 5 percent

Extent of the components in the map unit:

Grainola soils—38 percent

Masham soils—17 percent

Ironmound soils—13 percent

Minor soils (including Stephenville, Kingfisher, Darsil, Piedmont, Coyle, Mulhall,

Pulaski, Ashport, and Lawrie)—32 percent

Soil Characteristics

Grainola

Surface layer: Reddish brown clay loam

Figure 2.—Typical pattern of soils and underlying material in the Grainola-Masham-Ironmound

general soil map unit.
14 Soil Survey

Subsoil: Red silty clay and red shaley clay

Bedrock: Red shale interbedded with siltstone

Depth class: Moderately deep

Drainage class: Well drained

Seasonal high water table: None

Major landform: Upland hills

Slope range: 3 to 8 percent

Parent material: Shale

Masham

Surface layer: Reddish brown silty clay loam

Subsoil: Red silty clay

Bedrock: Red shale with streaks of light gray shale

Depth class: Shallow

Drainage class: Well drained

Seasonal high water table: None

Major landform: Upland hills

Slope range: 5 to 40 percent

Parent material: Shale

Ironmound

Surface layer: Reddish brown fine sandy loam

Subsoil: Red loam

Bedrock: Red sandstone

Depth class: Shallow

Drainage class: Well drained

Seasonal high water table: None

Major landform: Upland hills

Slope range: 5 to 40 percent

Parent material: Sandstone

Use and Management

Major Uses: Cropland, pastureland, rangeland, and urban land

Cropland

Suitability: Grainola—suited; Masham and Ironmound—poorly suited

Management concerns: Soil fertility, erosion hazard, available water-holding capacity,

and organic matter content

Rangeland

Suitability: Suited

Management concerns: Proper stocking rates, maintenance of soil fertility, and weed

and brush control

Pasture and hayland

Suitability: Grainola—suited; Masham and Ironmound—poorly suited

Management concerns: Depth to bedrock, low available water capacity, and slope

Urban development

Suitability: Poorly suited

Management concerns: High shrink-swell potential, depth to bedrock, slow percolation,

and slope
Logan County, Oklahoma 15

3. OK094—Kirkland-Renfrow-Zaneis (Kirkland-Renfrow)

Very deep, well drained, nearly level to gently sloping, loamy soils that formed in

weathered shale on prairie uplands

Setting

Location in the survey area: Areas in the western half of the county

Primary landscape: Uplands

Slope range: 1 to 5 percent

Composition

Extent of map unit in the survey area: 4 percent

Extent of the components in the map unit:

Kirkland soils—37 percent

Renfrow soils—36 percent

Minor soils (including Ashport, Coyle, Grainola, Lawrie, Renthin, and Zaneis)—27

percent

Soil Characteristics

Kirkland

Surface layer: Grayish brown silt loam

Subsoil: Very dark grayish brown, dark grayish brown, brown, and reddish brown silty

clay

Bedrock: Red weakly cemented sandy siltstone

Depth class: Very deep

Drainage class: Well drained

Seasonal high water table: None

Major landform: Upland terraces

Slope range: 0 to 3 percent

Parent material: Clayey mantle over shale

Renfrow

Surface layer: Dark reddish brown silt loam

Subsoil: Dark reddish gray, reddish brown, and red silty clay

Bedrock: Red shale

Depth class: Very deep

Drainage class: Well drained

Seasonal high water table: None

Major landform: Upland hills

Slope range: 1 to 5 percent

Parent material: Shale

Use and Management

Major Uses: Cropland, pastureland, rangeland, hayland, and urban land

Cropland

Suitability: Well suited

Management concerns: Clayey subsoil, erosion hazard, and very slow permeability

Rangeland

Suitability: Suited

Management concerns: Clayey subsoil, weed control, and rotational grazing
16 Soil Survey

Pasture and hayland

Suitability: Suited

Management concerns: Clayey subsoil, weed control, rotational grazing, and soil tilth

Urban development

Suitability: Poorly suited

Management concerns: High shrink-swell potential, slow percolation, high corrosivity

to steel, erosion hazard, and clayey subsoil

4. OK112—Port-Pulaski-Ashport (Ashport-PulaskiLawrie)

Very deep, well drained, nearly level, loamy soils that formed in alluvium on flood

plains (fig. 3)

Setting

Location in the survey area: Low or high flood plains of minor streams throughout the

county

Primary landscape: Valleys

Slope range: 0 to 1 percent

Composition

Extent of map unit in the survey area: 15 percent

Extent of the components in the map unit:

Ashport soils—37 percent

Figure 3.—Typical pattern of soils and underlying material in the Ashport-Pulaski-Lawrie general

soil map unit.
Logan County, Oklahoma 17

Pulaski soils—16 percent

Lawrie soils—14 percent

Minor soils (including Easpur, Miller, and Yahola)—33 percent

Soil Characteristics

Ashport

Surface layer: Reddish brown silt loam

Subsoil: Reddish brown and yellowish red silt loam

Underlying material: Reddish brown silt loam

Depth class: Very deep

Drainage class: Well drained

Seasonal high water table: None

Major landform: Low flood plains

Slope range: 0 to 1 percent

Parent material: Loamy alluvium

Pulaski

Surface layer: Reddish brown and brown fine sandy loam

Underlying material: Red fine sandy loam

Depth class: Very deep

Drainage class: Well drained

Seasonal high water table: None

Major landform: Low flood plains

Slope range: 0 to 1 percent

Parent material: Sandy alluvium

Lawrie

Surface layer: Dark grayish brown and very dark grayish brown silt loam

Subsoil: Brown and reddish brown silty clay loam and clay loam

Underlying material: Reddish brown loam

Depth class: Very deep

Drainage class: Well drained

Seasonal high water table: None

Major landform: High and low flood plains

Slope range: 0 to 1 percent

Parent material: Loamy alluvium

Use and Management

Major Uses: Cropland, pastureland, rangeland, and urban land

Cropland

Suitability: Ashport and Lawrie—well suited; Pulaski—suited

Management concerns: Flooding, tilth, permeability, and fertility

Rangeland

Suitability: Suited

Management concerns: Flooding, tilth, and controlled grazing

Pasture and hayland

Suitability: Ashport and Lawrie—well suited; Pulaski—suited

Management concerns: Flooding, soil fertility, erosion hazard, and tilth
18 Soil Survey

Urban development

Suitability: Poorly suited

Management concerns: Flooding, low soil strength, shrink-swell potential, slow

percolation, and seepage

5. OK116—Renfrow-Kirkland-Grainola (GrainolaRenfrow-Piedmont)

Very deep and moderately deep, well drained, very gently sloping to moderately

sloping, loamy and clayey soils that formed in shale on prairie uplands (fig. 4)

Setting

Location in the survey area: Areas throughout the county

Primary landscape: Uplands

Slope range: 1 to 8 percent

Composition

Extent of map unit in the survey area: 9 percent

Extent of the components in the map unit:

Grainola soils—28 percent

Renfrow soils—25 percent

Piedmont soils—14 percent

Minor soils (including Ashport, Ironmound, Coyle, Kirkland, Lawrie, Masham,

Renthin, and Zaneis)—33 percent

Figure 4.—Typical pattern of soils and underlying material in the Grainola-Renfrow-Piedmont

general soil map unit.
Logan County, Oklahoma 19

Soil Characteristics

Grainola

Surface layer: Reddish brown clay loam

Subsoil: Red silty clay and red shaley clay

Bedrock: Red shale interbedded with siltstone

Depth class: Moderately deep

Drainage class: Well drained

Seasonal high water table: None

Major landform: Upland hills

Slope range: 3 to 8 percent

Parent material: Shale

Renfrow

Surface layer: Dark reddish gray silt loam

Subsoil: Dark reddish gray, reddish brown, and red silty clay loam

Bedrock: Red shale

Depth class: Very deep

Drainage class: Well drained

Seasonal high water table: None

Major landform: Upland hills

Slope range: 1 to 5 percent

Parent material: Shale

Piedmont

Surface layer: Reddish brown silty clay

Subsoil: Reddish brown silty clay and red silty clay loam

Bedrock: Red shale interbedded with siltstone

Depth class: Moderately deep

Drainage class: Well drained

Seasonal high water table: None

Major landform: Upland hills

Slope range: 1 to 5 percent

Parent material: Shale

Use and Management

Major Uses: Cropland, hayland, improved pasture, native pasture, rangeland, and

urban development

Cropland

Suitability: Grainola—poorly suited; Renfrow—well suited; Piedmont—suited

Management concerns: Very slow permeability, maintenance of organic matter

content, erosion hazard, and clayey subsoil

Rangeland

Suitability: Suited

Management concerns: Weed control, rotational grazing, timely deferment of grazing,

and clayey subsoil

Pasture and hayland

Suitability: Grainola—poorly suited; Renfrow and Piedmont—suited

Management concerns: Weed control, clayey subsoil, soil fertility, and rotational

grazing
20 Soil Survey

Urban development

Suitability: Poorly suited

Management concerns: High shrink-swell potential, slow percolation, depth to bedrock,

high corrosivity, and erosion hazard

6. OK121—Teller-Konawa-Norge (Teller-Navina-Konawa)

Very deep, well drained, nearly level to moderately sloping, loamy and sandy soils that

formed in loamy material on terraces

Setting

Location in the survey area: Areas along major rivers and in the west-central part of

the county

Primary landscape: Upland terraces

Slope range: 0 to 8 percent

Composition

Extent of map unit in the survey area: 4 percent

Extent of the components in the map unit:

Teller soils—34 percent

Navina soils—19 percent

Konawa soils—15 percent

Minor soils (including Ashport, Easpur, Grainola, Lawrie, Minco, and Norge)—32

percent

Soil Characteristics

Teller

Surface layer: Reddish brown fine sandy loam

Subsoil: Reddish brown and red sandy clay loam and fine sandy loam

Substratum: Red fine sandy loam

Depth class: Very deep

Drainage class: Well drained

Seasonal high water table: None

Major landform: Stream terraces

Slope range: 1 to 5 percent

Parent material: Loamy sediments

Navina

Surface layer: Brown fine sandy loam

Subsoil: Brown fine sandy loam and sandy clay loam and pale brown to yellow fine

sandy loam

Depth class: Very deep

Drainage class: Well drained

Seasonal high water table: None

Major landform: Upland terraces

Slope range: 0 to 3 percent

Parent material: Loamy alluvium

Konawa

Surface layer: Brown loamy fine sand

Subsoil: Reddish brown and yellowish red sandy clay loam

Underlying material: Reddish yellow loamy fine sand
Logan County, Oklahoma 21

Depth class: Very deep

Drainage class: Well drained

Seasonal high water table: None

Major landform: Upland terraces

Slope range: 0 to 8 percent

Parent material: Loamy alluvium

Use and Management

Major Uses: Cropland, pastureland, rangeland, and urban land

Cropland

Suitability: Teller and Navina—well suited; Konawa—suited

Management concerns: Erosion hazard and slope

Rangeland

Suitability: Teller and Konawa—suited; Navina—not suited

Management concerns: Weed control, rotational grazing, and erosion hazard

Pasture and hayland

Suitability: Teller and Navina—well suited; Konawa—suited

Management concerns: Weed control, soil fertility, and erosion hazard

Urban development

Suitability: Well suited

Management concerns: Seepage, slope, and shrink-swell potential

7. OK141—Dougherty-Eufaula (Dougherty-KonawaDerby)

Very deep, well drained and somewhat excessively drained, nearly level to moderately

steep, loamy and sandy soils that formed in sandy eolian sediments and sandy and

loamy alluvium on terraces (fig. 5)

Setting

Location in the survey area: The central part of the county along the Cimarron River

Primary landscape: Upland terraces and valley terraces

Slope range: 0 to 15 percent

Composition

Extent of map unit in the survey area: 8 percent

Extent of the components in the map unit:

Dougherty soils—29 percent

Konawa soils—19 percent

Derby soils—19 percent

Minor soils (including Bocox, Goodnight, Grainola, Pulaski, Slaughterville, Teller,

and Tribbey)—33 percent

Soil Characteristics

Dougherty

Surface layer: Dark brown and brown loamy fine sand

Subsoil: Yellowish red sandy clay loam and fine sandy loam

Underlying material: Red very fine sandy loam
22 Soil Survey

Depth class: Very deep

Drainage class: Well drained

Seasonal high water table: None

Major landform: Dunes

Slope range: 0 to 8 percent

Parent material: Sandy eolian sediments

Konawa

Surface layer: Brown loamy fine sand

Subsoil: Reddish brown, yellowish red, and reddish yellow sandy clay loam and fine

sandy loam

Depth class: Very deep

Drainage class: Well drained

Seasonal high water table: None

Major landform: Upland terraces

Slope range: 0 to 8 percent

Parent material: Sandy and loamy alluvium

Derby

Surface layer: Dark yellowish brown loamy fine sand

Subsurface layer: Brown and strong brown fine sand

Subsoil: Reddish yellow fine sand and reddish yellow and reddish brown loamy fine

sand

Depth class: Very deep

Drainage class: Somewhat excessively drained

Figure 5.—Typical pattern of soils and underlying material in the Dougherty-Konawa-Derby

general soil map unit.
Logan County, Oklahoma 23

Seasonal high water table: None

Major landform: Dunes

Slope range: 0 to 15 percent

Parent material: Sandy eolian sediments

Use and Management

Major Uses: Cropland, pastureland, rangeland, and urban land

Cropland

Suitability: Dougherty and Konawa—suited; Derby—poorly suited

Management concerns: Erosion hazard, low content of organic matter, soil fertility,

runoff, and low available water capacity

Rangeland

Suitability: Suited

Management concerns: Weed control, brush control, rotational grazing, and erosion

hazard

Pasture and hayland

Suitability: Dougherty and Konawa—suited; Derby—poorly suited

Management concerns: Erosion hazard, low content of organic matter, soil fertility, and

low available water capacity

Urban development

Suitability: Dougherty and Derby—suited; Konawa—well suited

Management concerns: Slope, seepage, droughtiness, and slow percolation

8. OK151—Stephenville-Darnell-Newella (StephenvilleDarsil-Harrah)

Very deep to shallow, well drained and excessively drained, very gently sloping to

steep, loamy and sandy soils that formed in material weathered from sandstone on

forested uplands (fig. 6)

Setting

Location in the survey area: Areas in the eastern half of the county

Primary landscape: Uplands

Slope range: 1 to 45 percent

Composition

Extent of map unit in the survey area: 22 percent

Extent of the components in the map unit:

Stephenville soils—27 percent

Darsil soils—22 percent

Harrah soils—14 percent

Minor soils (including Easpur, Grainola, Littleaxe, Masham, Newalla, Pulaski,

Tribbey, and Zaneis)—37 percent

Soil Characteristics

Stephenville

Surface layer: Brown fine sandy loam

Subsurface layer: Brown fine sandy loam
24 Soil Survey

Subsoil: Yellowish red sandy clay loam and fine sandy loam

Bedrock: Brown sandstone

Depth class: Moderately deep

Drainage class: Well drained

Seasonal high water table: None

Major landform: Upland hills

Slope range: 1 to 15 percent

Parent material: Sandstone

Darsil

Surface layer: Brown loamy fine sand

Subsoil: Red fine sandy loam

Bedrock: Red sandstone

Depth class: Shallow

Drainage class: Excessively drained

Seasonal high water table: None

Major landform: Upland hills

Slope range: 1 to 45 percent

Parent material: Weakly cemented sandstone

Harrah

Surface layer: Brown fine sandy loam

Subsurface layer: Reddish brown fine sandy loam

Subsoil: Red sandy clay loam and fine sandy loam

Depth class: Very deep

Drainage class: Well drained

Seasonal high water table: None

Figure 6.—Typical pattern of soils and underlying material in the Stephenville-Darsil-Harrah

general soil map unit.
Logan County, Oklahoma 25

Major landform: Upland hills

Slope range: 3 to 45 percent

Parent material: Sandy and loamy colluvial material weathered from sandstone

Use and Management

Major Uses: Cropland, pastureland, rangeland, and urban land

Cropland

Suitability: Stephenville and Harrah—suited; Darsil—poorly suited

Management concerns: Low content of organic matter, low available water capacity,

soil fertility, erosion hazard, and slope

Rangeland

Suitability: Suited

Management concerns: Soil fertility, low available water capacity, low content of

organic matter, rotational grazing, and proper stocking rates

Pasture and hayland

Suitability: Stephenville—suited; Darsil—poorly suited; Harrah—well suited

Management concerns: Soil fertility, low available water capacity, and low content of

organic matter

Urban development

Suitability: Stephenville—suited; Darsil—poorly suited; Harrah—well suited

Management concerns: Depth to bedrock and slope

9. OK225—Coyle-Ironmound-Zaneis (Coyle-IronmoundZaneis)

Deep to shallow, well drained, very gently sloping to steep, loamy soils that formed in

weathered sandstone on prairie uplands (fig. 7)

Setting

Location in the survey area: Areas in the central part of the county

Primary landscape: Uplands

Slope range: 1 to 30 percent

Composition

Extent of map unit in the survey area: 29 percent

Extent of the components in the map unit:

Coyle soils—27 percent

Ironmound soils—20 percent

Zaneis soils—15 percent

Minor soils (including Ashport, Darsil, Easpur, Grainola, Harrah, Mulhall, Pulaski,

Renthin, and Teller)—38 percent

Soil Characteristics

Coyle

Surface layer: Brown loam

Subsoil: Dark reddish brown, yellowish red, and reddish brown sandy clay loam and

gravelly fine sandy loam

Underlying material: Yellowish red partially weathered sandstone
26 Soil Survey

Bedrock: Yellowish red hard sandstone

Depth class: Moderately deep

Drainage class: Well drained

Seasonal high water table: None

Major landform: Upland hills

Slope range: 1 to 12 percent

Parent material: Sandstone

Ironmound

Surface layer: Reddish brown fine sandy loam

Subsoil: Red loam

Bedrock: Red sandstone

Depth class: Shallow

Drainage class: Well drained

Seasonal high water table: None

Major landform: Upland hills

Slope range: 3 to 30 percent

Parent material: Sandstone

Zaneis

Surface layer: Grayish brown loam

Subsoil: Brown, reddish brown, and yellowish red loam and sandy clay loam

Bedrock: Red partially weathered sandstone

Depth class: Deep

Drainage class: Well drained

Seasonal high water table: None

Major landform: Upland hills

Slope range: 1 to 5 percent

Parent material: Sandstone

Figure 7.—Typical pattern of soils and underlying material in the Coyle-Ironmound-Zaneis general

soil map unit.
Logan County, Oklahoma 27

Use and Management

Major Uses: Cropland, pastureland, rangeland, and urban land

Cropland

Suitability: Coyle and Zaneis—well suited; Ironmound—poorly suited

Management concerns: Soil fertility, erosion hazard, tilth, organic matter content, and

slope

Rangeland

Suitability: Suited

Management concerns: Erosion hazard, weed control, rotational grazing, proper

stocking, and soil fertility

Pasture and hayland

Suitability: Coyle—suited; Ironmound—poorly suited; Zaneis—well suited

Management concerns: Erosion hazard, soil fertility, tilth, and low content of organic

matter

Urban development

Suitability: Coyle and Zaneis—suited; Ironmound—poorly suited

Management concerns: Shrink-swell potential, erosion hazard, depth to bedrock, slow

percolation, and slope

29

The map units on the detailed soil maps represent the soils or miscellaneous areas

in the survey area. The map unit descriptions in this section, along with the maps, can

be used to determine the suitability and potential of a unit for specific uses. They also

can be used to plan the management needed for those uses. More information about

each map unit is given in the section “Use and Management of the Soils.”

A map unit delineation on the detailed soil maps represents an area on the

landscape and consists of one or more soils or miscellaneous areas. A map unit is

identified and named according to the taxonomic classification of the dominant soils or

miscellaneous areas. Within a taxonomic class there are precisely defined limits for the

properties of the soils. On the landscape, however, the soils and miscellaneous areas

are natural phenomena, and they have the characteristic variability of all natural

phenomena. Thus, the range of some observed properties may extend beyond the

limits defined for a taxonomic class. Areas of soils of a single taxonomic class rarely, if

ever, are mapped without including areas of minor components of other taxonomic

classes. Consequently, map units are made up of the soils or miscellaneous areas for

which they are named and some areas of included soils that belong to other

taxonomic classes.

Most included soils have properties similar to those of the dominant soil or soils in

the map unit, and thus they do not affect use and management. These are called

noncontrasting or similar inclusions. They may or may not be mentioned in the map

unit description. Other included soils and miscellaneous areas, however, have

properties and behavioral characteristics divergent enough to affect use or to require

different management. These are called contrasting, or dissimilar, inclusions. They

generally are in small areas and could not be mapped separately because of the scale

used. Some small areas of strongly contrasting soils or miscellaneous areas are

identified by a special symbol on the maps. The included areas of contrasting soils or

miscellaneous areas are mentioned in the map unit descriptions. A few included areas

may not have been observed, and consequently they are not mentioned in the

descriptions, especially where the pattern was so complex that it was impractical to

make enough observations to identify all the soils and miscellaneous areas on the

landscape.

The presence of included areas in a map unit in no way diminishes the usefulness

or accuracy of the data. The objective of mapping is not to delineate pure taxonomic

classes but rather to separate the landscape into segments that have similar use and

management requirements. The delineation of such landscape segments on the map

provides sufficient information for the development of resource plans, but if intensive

use of small areas is planned, onsite investigation is needed to define and locate the

soils and miscellaneous areas.

An identifying symbol precedes the map unit name in the map unit descriptions.

Each description includes general facts about the unit and gives the principal hazards

and limitations to be considered in planning for specific uses.

Soils that have profiles that are almost alike make up a soil series. Except for

differences in texture of the surface layer or of the underlying layers, all the soils of a

series have major horizons that are similar in composition, thickness, and

arrangement.

Detailed Soil Map Units
30 Soil Survey

Soils of one series can differ in texture of the surface layer or of the underlying

layers. They also can differ in slope, stoniness, salinity, wetness, degree of erosion,

and other characteristics that affect their use. On the basis of such differences, a soil

series is divided into soil phases. Most of the areas shown on the detailed soil maps

are phases of soil series. The name of a soil phase commonly indicates a feature that

affects use or management. For example, Ashport silt loam, 0 to 1 percent slopes,

occasionally flooded, is a phase of the Ashport series.

Some map units are made up of two or more major soils or miscellaneous areas.

These map units are complexes or undifferentiated groups.

A complex consists of two or more soils or miscellaneous areas in such an intricate

pattern or in such small areas that they cannot be shown separately on the maps. The

pattern and proportion of the soils or miscellaneous areas are somewhat similar in all

areas. Darsil-Rock outcrop complex, 15 to 45 percent slopes, is an example.

An undifferentiated group consists of two or more soils or miscellaneous areas that

are not consistently associated geographically and, therefore, do not always occur

together in the same named map unit delineation. These components are included in

the same named map unit because their use and management are the same or very

similar for common uses. Generally, they are grouped together because some

common feature determines their use and management. Each delineation has at least

one of the major components, and some may have all of them. Coyle and Zaneis soils,

3 to 5 percent slopes, severely eroded, is an example.

This survey includes miscellaneous areas. Such areas have little or no soil material

and support little or no vegetation. Urban land is an example.

The table “Acreage and Proportionate Extent of the Soils” gives the acreage and

proportionate extent of each map unit. Other tables (see “Summary of Tables”) give

properties of the soils and the limitations, capabilities, and potentials for many uses.

The Glossary defines many of the terms used in describing the soils or miscellaneous

areas.
Logan County, Oklahoma 31

Acreage and Proportionate Extent of the Soils

_______________________________________________________________________________________________________

 | | |

 Map | Soil name | Acres |Percent

symbol | | |

 | | | _______________________________________________________________________________________________________

 | | |

AspA |Ashport silt loam, 0 to 1 percent slopes, occasionally flooded-----------| 7,753 | 1.6

AstA |Ashport silt loam, 0 to 1 percent slopes, frequently flooded-------------| 17,881 | 3.7

BetA |Bethany silt loam, 0 to 1 percent slopes---------------------------------| 248 | *

BetB |Bethany silt loam, 1 to 3 percent slopes---------------------------------| 135 | *

BocA |Bocox loamy fine sand, 0 to 1 percent slopes-----------------------------| 934 | 0.2

BtlA |Bathel loamy sand, 0 to 1 percent slopes---------------------------------| 669 | 0.1

CaaA |Canadian fine sandy loam, 0 to 1 percent slopes, rarely flooded----------| 1,019 | 0.2

CAID |Coyle-Ashport-Ironmound complex, 1 to 8 percent slopes-------------------| 6,258 | 1.3

CoIC2 |Coyle-Ironmound complex, 3 to 5 percent slopes, eroded-------------------| 28,063 | 5.9

CoUB |Coyle-Urban land complex, 1 to 3 percent slopes--------------------------| --- | *

CoUC |Coyle-Urban land complex, 1 to 5 percent slopes--------------------------| 1,592 | 0.3

CoyB |Coyle loam, 1 to 3 percent slopes----------------------------------------| 2,683 | 0.6

CoyC2 |Coyle loam, 3 to 5 percent slopes, eroded--------------------------------| 9,312 | 1.9

CoZC3 |Coyle and Zaneis soils, 3 to 5 percent slopes, severely eroded-----------| 4,183 | 0.9

DAM |Dam----------------------------------------------------------------------| 176 | *

DerB |Derby loamy fine sand, 0 to 3 percent slopes-----------------------------| 1,951 | 0.4

DerD |Derby loamy fine sand, 3 to 8 percent slopes-----------------------------| 3,101 | 0.6

DerE |Derby loamy fine sand, 8 to 15 percent slopes----------------------------| 2,136 | 0.4

DiRG |Darsil-Rock outcrop complex, 15 to 45 percent slopes---------------------| 14,702 | 3.1

DouB |Dougherty loamy fine sand, 0 to 3 percent slopes-------------------------| 5,160 | 1.1

DouD |Dougherty loamy fine sand, 3 to 8 percent slopes-------------------------| 4,833 | 1.0

DUM |Dumps--------------------------------------------------------------------| 50 | *

EasA |Easpur loam, 0 to 1 percent slopes, occasionally flooded-----------------| 4,965 | 1.0

GadA |Gaddy loamy fine sand, 0 to 1 percent slopes, occasionally flooded-------| 1,219 | 0.3

GaGA |Gaddy-Gracemore complex, 0 to 1 percent slopes, frequently flooded-------| 1,820 | 0.4

GMGE4 |Grainola-Masham-Gullied land complex, 5 to 15 percent slopes-------------| 1,984 | 0.4

GMLG |Grainola-Masham-Lucien complex, 5 to 40 percent slopes, very bouldery----| 45 | *

GohC |Goodnight loamy fine sand, 1 to 5 percent slopes-------------------------| 508 | 0.1

GohE |Goodnight loamy fine sand, 5 to 15 percent slopes------------------------| 1,107 | 0.2

GooE |Goodnight fine sand, 1 to 15 percent slopes------------------------------| 819 | 0.2

GooG |Goodnight fine sand, 15 to 45 percent slopes-----------------------------| 837 | 0.2

GraC |Grainola silty clay loam, 3 to 5 percent slopes--------------------------| 11,023 | 2.3

GraD2 |Grainola silty clay loam, 5 to 8 percent slopes, eroded------------------| 17,138 | 3.6

GrHC |Grant-Huska complex, 1 to 5 percent slopes-------------------------------| 28 | *

GrIE |Grainola-Ironmound complex, 3 to 12 percent slopes-----------------------| --- | *

GrLE |Grainola-Lucien complex, 5 to 12 percent slopes--------------------------| 266 | *

HaGD4 |Harrah-Gullied land complex, 5 to 8 percent slopes-----------------------| 562 | 0.1

HarC |Harrah fine sandy loam, 3 to 5 percent slopes----------------------------| 4,480 | 0.9

HarC2 |Harrah fine sandy loam, 3 to 5 percent slopes, eroded--------------------| 6,029 | 1.3

HarG |Harrah fine sandy loam, 3 to 45 percent slopes---------------------------| 6,196 | 1.3

HawB |Hawley loamy fine sand, 0 to 3 percent slopes, rarely flooded------------| 698 | 0.1

ICGD3 |Ironmound-Coyle-Grainola complex, 5 to 8 percent slopes, severely eroded-| 3,454 | 0.7

IrCE |Ironmound-Coyle complex, 5 to 15 percent slopes--------------------------| 19,289 | 4.0

IroC2 |Ironmound loam, 3 to 5 percent slopes, eroded----------------------------| 878 | 0.2

KgfB |Kingfisher silt loam, 1 to 3 percent slopes------------------------------| 823 | 0.2

KinC2 |Kingfisher loam, 3 to 5 percent slopes, eroded---------------------------| 4,276 | 0.9

KonB |Konawa loamy fine sand, 0 to 3 percent slopes----------------------------| 4,108 | 0.9

KonD2 |Konawa loamy fine sand, 3 to 8 percent slopes, eroded--------------------| 3,991 | 0.8

KrdA |Kirkland silt loam, 0 to 1 percent slopes--------------------------------| 4,084 | 0.9

KrkB |Kirkland silty clay loam, 1 to 3 percent slopes--------------------------| 9,866 | 2.1

LarA |Lawrie silt loam, 0 to 1 percent slopes, occasionally flooded------------| 7,132 | 1.5

LawA |Lawrie loam, 0 to 1 percent slopes, rarely flooded-----------------------| 1,698 | 0.4

LerA |Lebron clay, 0 to 1 percent slopes, occasionally flooded-----------------| 1,062 | 0.2

LitB |Littleaxe fine sandy loam, 1 to 3 percent slopes-------------------------| 1,031 | 0.2

LitC2 |Littleaxe fine sandy loam, 3 to 5 percent slopes, eroded-----------------| 1,439 | 0.3

M-W |Miscellaneous water------------------------------------------------------| 28 | *

MaID |Masham-Ironmound complex, 5 to 15 percent slopes-------------------------| 14,379 | 3.0

MaIG |Masham-Ironmound complex, 15 to 40 percent slopes------------------------| 1,514 | 0.3

MinB |Minco very fine sandy loam, 1 to 3 percent slopes------------------------| 547 | 0.1

 | | |

 See footnote at end of table.
32 Soil Survey

Acreage and Proportionate Extent of the Soils—Continued

_______________________________________________________________________________________________________

 | | |

 Map | Soil name | Acres |Percent

symbol | | |

 | | | _______________________________________________________________________________________________________

 | | |

MinC |Minco very fine sandy loam, 3 to 5 percent slopes------------------------| 823 | 0.2

MinD |Minco very fine sandy loam, 5 to 8 percent slopes------------------------| 84 | *

MinF |Minco very fine sandy loam, 8 to 20 percent slopes-----------------------| 528 | 0.1

MllA |Miller silty clay, 0 to 1 percent slopes, occasionally flooded-----------| 1,778 | 0.4

MulC |Mulhall loam, 3 to 5 percent slopes--------------------------------------| 3,271 | 0.7

MulC2 |Mulhall loam, 3 to 5 percent slopes, eroded------------------------------| 817 | 0.2

NavA |Navina fine sandy loam, 0 to 1 percent slopes----------------------------| 1,687 | 0.4

NavB |Navina fine sandy loam, 1 to 3 percent slopes----------------------------| 1,849 | 0.4

NeGD4 |Newalla-Gullied land complex, 3 to 8 percent slopes----------------------| 196 | *

NewB |Newalla fine sandy loam, 1 to 3 percent slopes---------------------------| 2,387 | 0.5

NorA |Norge silt loam, 0 to 1 percent slopes-----------------------------------| 585 | 0.1

NorB |Norge silt loam, 1 to 3 percent slopes-----------------------------------| 3,704 | 0.8

NorC2 |Norge silt loam, 3 to 5 percent slopes, eroded---------------------------| 8,375 | 1.7

OWHD |Oil waste land-Huska complex, 1 to 8 percent slopes----------------------| 125 | *

PieB |Piedmont silty clay loam, 1 to 3 percent slopes--------------------------| 3,275 | 0.7

PieC2 |Piedmont silty clay loam, 3 to 5 percent slopes, eroded------------------| 9,231 | 1.9

PIT |Pits---------------------------------------------------------------------| 148 | *

PukA |Pulaski fine sandy loam, 0 to 1 percent slopes, frequently flooded-------| 9,269 | 1.9

PulA |Pulaski fine sandy loam, 0 to 1 percent slopes, occasionally flooded-----| 2,729 | 0.6

RenB |Renfrow silt loam, 1 to 3 percent slopes---------------------------------| 8,222 | 1.7

RenC |Renfrow silt loam, 3 to 5 percent slopes---------------------------------| 554 | 0.1

RewC2 |Renfrow silty clay loam, 3 to 5 percent slopes, eroded-------------------| 13,908 | 2.9

RinB |Renthin silt loam, 1 to 3 percent slopes---------------------------------| 2,344 | 0.5

RnnC2 |Renthin silty clay loam, 3 to 5 percent slopes, eroded-------------------| 4,986 | 1.0

SDGD4 |Stephenville-Darsil-Gullied land complex, 3 to 8 percent slopes----------| 7,459 | 1.6

SDND |Stephenville-Darsil-Newalla complex, 3 to 8 percent slopes---------------| 11,157 | 2.3

SDND2 |Stephenville-Darsil-Newalla complex, 3 to 8 percent slopes, eroded-------| 17,807 | 3.7

SlaB |Slaughterville fine sandy loam, 1 to 3 percent slopes--------------------| 702 | 0.1

SlaD |Slaughterville fine sandy loam, 3 to 8 percent slopes--------------------| 748 | 0.2

SlaF |Slaughterville fine sandy loam, 8 to 20 percent slopes-------------------| 128 | *

StDC |Stephenville-Darsil complex, 1 to 5 percent slopes-----------------------| 11,149 | 2.3

StDC2 |Stephenville-Darsil complex, 1 to 5 percent slopes, eroded---------------| 9,599 | 2.0

StDE |Stephenville-Darsil complex, 5 to 15 percent slopes----------------------| 20,097 | 4.2

SteB |Stephenville fine sandy loam, 1 to 3 percent slopes----------------------| 934 | 0.2

SteC2 |Stephenville fine sandy loam, 3 to 5 percent slopes, eroded--------------| 715 | 0.1

SUND |Stephenville-Urban land-Newalla complex, 1 to 8 percent slopes-----------| 293 | *

TelB |Teller loam, 1 to 3 percent slopes---------------------------------------| 4,696 | 1.0

TelC2 |Teller loam, 3 to 5 percent slopes, eroded-------------------------------| 8,141 | 1.7

TriA |Tribbey fine sandy loam, 0 to 1 percent slopes, frequently flooded-------| 4,538 | 0.9

URB |Urban land---------------------------------------------------------------| 3,417 | 0.7

W |Water--------------------------------------------------------------------| 6,709 | 1.4

YaaA |Yahola loam, 0 to 1 percent slopes, occasionally flooded-----------------| 1,071 | 0.2

YahA |Yahola fine sandy loam, 0 to 1 percent slopes, occasionally flooded------| 3,983 | 0.8

ZaHC |Zaneis-Huska complex, 3 to 5 percent slopes------------------------------| 5,483 | 1.1

ZanB |Zaneis loam, 1 to 3 percent slopes---------------------------------------| 8,403 | 1.8

ZanC |Zaneis loam, 3 to 5 percent slopes---------------------------------------| 700 | 0.1

ZanC2 |Zaneis loam, 3 to 5 percent slopes, eroded-------------------------------| 18,452 | 3.8

 | |____________|________

 | Total---------------------------------------------------------------| 479,418 | 100.0

 | | | _______________________________________________________________________________________________________

 * Less than 0.1 percent. The combined extent of the soils assigned an asterisk in the “Percent”

column is about 0.4 percent of the survey area.
Logan County, Oklahoma 33

AspA—Ashport silt loam, 0 to 1 percent slopes,

occasionally flooded

Map Unit Setting

Major land resource area: 80A

Elevation range: 850 to 1,050 feet

Mean annual precipitation: 32 to 36 inches

Mean annual air temperature: 60 to 61 degrees F

Frost-free period: 200 to 210 days

Major Component Description

Ashport and similar soils

Extent of the component in the map unit: 95 percent

Geomorphic setting: Flood plain in a valley

Parent material: Fine-silty alluvium

Slope range: 0 to 1 percent

Runoff: Negligible

Soil depth: More than 60 inches

Slowest permeability class of the soil: Moderate

Slowest permeability class within a depth of 60 inches: Moderate

Drainage class: Well drained

Available water capacity: About 11.8 inches

Depth to the top of the seasonal high water table: More than 6 feet

Flooding: Occasional

Ponding: None

Interpretive groups:

Land capability classification—2w

Range site number and name—080AY050OK, Loamy Bottomland

Typical profile:

Ap—0 to 10 inches; silt loam

Bw1—10 to 22 inches; silt loam

Bw2—22 to 44 inches; silt loam

C—44 to 80 inches; silt loam

Location of representative profile: About 1,175 feet north and 225 feet east of the

southwest corner of sec. 15, T. 18 N., R. 3 W.

Management

Major uses: Cropland (fig. 8), pastureland, hayland, and rangeland

For general and detailed information about managing this map unit, see the

sections “Use and Management of the Soils” and “Soil Properties.”

AstA—Ashport silt loam, 0 to 1 percent slopes, frequently

flooded

Map Unit Setting

Major land resource area: 80A

Elevation range: 850 to 1,050 feet

Mean annual precipitation: 32 to 36 inches
34 Soil Survey

Mean annual air temperature: 60 to 61 degrees F

Frost-free period: 200 to 210 days

Major Component Description

Ashport and similar soils

Extent of the component in the map unit: 90 percent

Geomorphic setting: Flood plain in a valley

Parent material: Fine-silty alluvium

Slope range: 0 to 1 percent

Runoff: Negligible

Soil depth: More than 60 inches

Slowest permeability class of the soil: Moderate

Slowest permeability class within a depth of 60 inches: Moderate

Drainage class: Well drained

Available water capacity: About 11.8 inches

Depth to the top of the seasonal high water table: More than 6 feet

Flooding: Frequent

Ponding: None

Interpretive groups:

Land capability classification—5w

Range site number and name—080AY050OK, Loamy Bottomland

Typical profile:

A—0 to 11 inches; silt loam

Bw—11 to 30 inches; silt loam

Ab—30 to 36 inches; silt loam

Figure 8.—Grain sorghum growing on Ashport silt loam, 0 to 1 percent slopes, occasionally

flooded.
Logan County, Oklahoma 35

Bwb—36 to 52 inches; silt loam

Cb1—52 to 67 inches; silt loam

Cb2—67 to 80 inches; silt loam

Location of representative profile: About 2,250 feet east and 350 feet north of the

southwest corner of sec. 27, T. 19 N., R. 4 W.

Management

Major uses: Hayland, pastureland, and rangeland

For general and detailed information about managing this map unit, see the

sections “Use and Management of the Soils” and “Soil Properties.”

BetA—Bethany silt loam, 0 to 1 percent slopes

Map Unit Setting

Major land resource area: 80A

Elevation range: 950 to 1,100 feet

Mean annual precipitation: 32 to 36 inches

Mean annual air temperature: 60 to 61 degrees F

Frost-free period: 200 to 210 days

Major Component Description

Bethany and similar soils

Extent of the component in the map unit: 93 percent

Geomorphic setting: Terrace on an upland

Position on landform: Tread

Parent material: Silty and clayey alluvium

Slope range: 0 to 1 percent

Runoff: Low

Soil depth: More than 60 inches

Slowest permeability class of the soil: Slow

Slowest permeability class within a depth of 60 inches: Slow

Drainage class: Well drained

Available water capacity: About 10.7 inches

Depth to the top of the seasonal high water table: More than 6 feet

Flooding: None

Ponding: None

Interpretive groups:

Land capability classification—1

Range site number and name—080AY056OK, Loamy Prairie

Typical profile:

Ap—0 to 8 inches; silt loam

A—8 to 18 inches; silt loam

BA—18 to 28 inches; silty clay loam

Bt1—28 to 46 inches; silty clay

Bt2—46 to 62 inches; silty clay

Btk—62 to 80 inches; silty clay

Location of representative profile: About 1,000 feet north and 150 feet west of the

southeast corner of sec. 32, T. 18 N., R. 1 W.
36 Soil Survey

Management

Major uses: Cropland, pastureland, hayland, and rangeland

For general and detailed information about managing this map unit, see the

sections “Use and Management of the Soils” and “Soil Properties.”

BetB—Bethany silt loam, 1 to 3 percent slopes

Map Unit Setting

Major land resource area: 80A

Elevation range: 950 to 1,100 feet

Mean annual precipitation: 32 to 36 inches

Mean annual air temperature: 60 to 61 degrees F

Frost-free period: 200 to 210 days

Major Component Description

Bethany and similar soils

Extent of the component in the map unit: 93 percent

Geomorphic setting: Terrace on an upland

Position on landform: Tread

Parent material: Silty and clayey alluvium

Slope range: 1 to 3 percent

Runoff: Medium

Soil depth: More than 60 inches

Slowest permeability class of the soil: Slow

Slowest permeability class within a depth of 60 inches: Slow

Drainage class: Well drained

Available water capacity: About 10.6 inches

Depth to the top of the seasonal high water table: More than 6 feet

Flooding: None

Ponding: None

Interpretive groups:

Land capability classification—2e

Range site number and name—080AY056OK, Loamy Prairie

Typical profile:

Ap—0 to 10 inches; silt loam

BA—10 to 22 inches; silty clay loam

Bt1—22 to 31 inches; silty clay

Bt2—31 to 51 inches; silty clay

Bt3—51 to 74 inches; silty clay

Btk—74 to 80 inches; silty clay loam

Location of representative profile: About 2,375 feet west and 1,150 feet south of the

northeast corner of sec. 23, T. 19 N., R. 4 W.

Management

Major uses: Cropland, pastureland, hayland, and rangeland

For general and detailed information about managing this map unit, see the

sections “Use and Management of the Soils” and “Soil Properties.”
Logan County, Oklahoma 37

BocA—Bocox loamy fine sand, 0 to 1 percent slopes

Map Unit Setting

Major land resource area: 80A

Elevation range: 1,000 to 1,100 feet

Mean annual precipitation: 32 to 36 inches

Mean annual air temperature: 60 to 61 degrees F

Frost-free period: 200 to 210 days

Major Component Description

Bocox and similar soils

Extent of the component in the map unit: 94 percent

Geomorphic setting: Depression on an interdune in a dunefield on sandhills on

uplands

Parent material: Sandy eolian deposits

Slope range: 0 to 1 percent

Runoff: Negligible

Soil depth: More than 60 inches

Slowest permeability class of the soil: Moderate

Slowest permeability class within a depth of 60 inches: Moderate

Drainage class: Very poorly drained

Available water capacity: About 6.6 inches

Seasonal high water table: At the soil surface

Flooding: None

Ponding: Frequent

Interpretive groups:

Land capability classification—5w

Range site number and name—080AY090OK, Meadow

Typical profile:

A—0 to 11 inches; loamy fine sand

E1—11 to 20 inches; loamy fine sand

E2—20 to 33 inches; loamy fine sand

Bt1—33 to 52 inches; sandy clay loam

Bt2—52 to 65 inches; fine sandy loam

Bt3—65 to 80 inches; fine sandy loam

Location of representative profile: About 500 feet west and 1,900 feet south of the

northeast corner of sec. 7, T. 17 N., R. 4 E.

Management

Major uses: Pastureland and rangeland

For general and detailed information about managing this map unit, see the

sections “Use and Management of the Soils” and “Soil Properties.”

BtlA—Bathel loamy sand, 0 to 1 percent slopes

Map Unit Setting

Major land resource area: 80A

Elevation range: 1,000 to 1,100 feet

Mean annual precipitation: 32 to 36 inches
38 Soil Survey

Mean annual air temperature: 60 to 61 degrees F

Frost-free period: 200 to 210 days

Major Component Description

Bathel and similar soils

Extent of the component in the map unit: 94 percent

Geomorphic setting: Interdune in a dunefield on sandhills on a terrace on uplands

Position on landform: Tread

Parent material: Sandy eolian deposits

Slope range: 0 to 1 percent

Runoff: Negligible

Soil depth: More than 60 inches

Slowest permeability class of the soil: Moderately slow

Slowest permeability class within a depth of 60 inches: Moderately slow

Drainage class: Somewhat poorly drained

Available water capacity: About 7.2 inches

Depth to the top of the seasonal high water table: 2.0 to 3.5 feet

Flooding: None

Ponding: Frequent

Interpretive groups:

Land capability classification—3w

Range site number and name—080AY099OK, Depressional Upland

Typical profile:

Ap—0 to 12 inches; loamy sand

E—12 to 18 inches; fine sandy loam

Bt—18 to 22 inches; sandy clay loam

Btg—22 to 45 inches; sandy clay loam

BCg—45 to 80 inches; fine sandy loam

Location of representative profile: About 1,800 feet east and 2,000 feet south of the

northwest corner of sec. 7, T. 17 N., R. 4 W.

Management

Major uses: Cropland and rangeland

For general and detailed information about managing this map unit, see the

sections “Use and Management of the Soils” and “Soil Properties.”

CaaA—Canadian fine sandy loam, 0 to 1 percent slopes,

rarely flooded

Map Unit Setting

Major land resource area: 80A

Elevation range: 850 to 1,050 feet

Mean annual precipitation: 32 to 36 inches

Mean annual air temperature: 60 to 61 degrees F

Frost-free period: 200 to 210 days

Major Component Description

Canadian and similar soils

Extent of the component in the map unit: 94 percent
Logan County, Oklahoma 39

Geomorphic setting: Flood plain in a valley

Parent material: Coarse-loamy alluvium

Slope range: 0 to 1 percent

Runoff: Negligible

Soil depth: More than 60 inches

Slowest permeability class of the soil: Moderately rapid

Slowest permeability class within a depth of 60 inches: Moderately rapid

Drainage class: Well drained

Available water capacity: About 8.3 inches

Depth to the top of the seasonal high water table: More than 6 feet

Flooding: Rare

Ponding: None

Interpretive groups:

Land capability classification—1

Range site number and name—080AY050OK, Loamy Bottomland

Typical profile:

Ap—0 to 10 inches; fine sandy loam

A—10 to 19 inches; fine sandy loam

Bw1—19 to 31 inches; fine sandy loam

Bw2—31 to 41 inches; fine sandy loam

C1—41 to 55 inches; fine sandy loam

C2—55 to 80 inches; fine sandy loam

Location of representative profile: About 1,200 feet west and 2,950 feet south of the

northeast corner of sec. 28, T. 18 N., R. 1 W.

Management

Major uses: Cropland, pastureland, hayland, and rangeland

For general and detailed information about managing this map unit, see the

sections “Use and Management of the Soils” and “Soil Properties.”

CAID—Coyle-Ashport-Ironmound complex, 1 to 8 percent

slopes

Map Unit Setting

Major land resource area: 80A (fig. 9)

Elevation range: 850 to 1,200 feet

Mean annual precipitation: 32 to 36 inches

Mean annual air temperature: 60 to 61 degrees F

Frost-free period: 200 to 210 days

Major Component Description

Coyle and similar soils

Extent of the component in the map unit: 31 percent

Geomorphic setting: Drainageway on uplands

Position on landform: Shoulder and backslope

Parent material: Residuum weathered from sandstone

Slope range: 3 to 5 percent

Runoff: High

Depth to bedrock (paralithic): 20 to 40 inches

Slowest permeability class of the soil: Moderate
40 Soil Survey

Slowest permeability class within a depth of 60 inches: Impermeable

Drainage class: Well drained

Available water capacity: About 5.6 inches

Depth to the top of the seasonal high water table: More than 6 feet

Flooding: None

Ponding: None

Interpretive groups:

Land capability classification—3e

Range site number and name—080AY056OK, Loamy Prairie

Typical profile:

A—0 to 10 inches; loam

Bt1—10 to 19 inches; clay loam

Bt2—19 to 36 inches; clay loam

Cr—36 to 40 inches; bedrock

Location of representative profile: About 1,600 feet west and 1,050 feet south of the

northeast corner of sec. 25, T. 19 N., R. 3 W.

Ashport and similar soils

Extent of the component in the map unit: 28 percent

Geomorphic setting: Flood plain in a valley

Parent material: Fine-silty alluvium

Slope range: 0 to 1 percent

Runoff: Negligible

Soil depth: More than 60 inches

Slowest permeability class of the soil: Moderate

Figure 9.—Landscape of the Coyle-Ashport-Ironmound complex, 1 to 8 percent slopes, showing

the typical prairie drainageway of the Central Rolling Red Prairies Major Land Resource Area.
Logan County, Oklahoma 41

Slowest permeability class within a depth of 60 inches: Moderate

Drainage class: Well drained

Available water capacity: About 11.8 inches

Depth to the top of the seasonal high water table: More than 6 feet

Flooding: Frequent

Ponding: None

Interpretive groups:

Land capability classification—5w

Range site number and name—080AY050OK, Loamy Bottomland

Typical profile:

A—0 to 11 inches; silt loam

Bw1—11 to 26 inches; silt loam

Bw2—26 to 46 inches; loam

C1—46 to 63 inches; loam

C2—63 to 80 inches; stratified loamy fine sand to loam to silty clay

Location of representative profile: About 1,600 feet west and 1,050 feet south of the

northeast corner of sec. 25, T. 19 N., R. 3 W.

Ironmound and similar soils

Extent of the component in the map unit: 22 percent

Geomorphic setting: Drainageway on uplands

Position on landform: Backslope

Parent material: Residuum weathered from sandstone

Slope range: 5 to 8 percent

Runoff: Very high

Depth to bedrock (paralithic): 10 to 20 inches

Slowest permeability class of the soil: Moderate

Slowest permeability class within a depth of 60 inches: Impermeable

Drainage class: Well drained

Available water capacity: About 3.0 inches

Depth to the top of the seasonal high water table: More than 6 feet

Flooding: None

Ponding: None

Interpretive groups:

Land capability classification—4e

Range site number and name—080AY083OK, Shallow Prairie

Typical profile:

A—0 to 6 inches; loam

Bw—6 to 18 inches; loam

Cr—18 to 24 inches; bedrock

Location of representative profile: About 1,500 feet west and 900 feet south of the

northeast corner of sec. 25, T. 19 N., R. 3 W.

Management

Major uses: Hayland, pastureland, and rangeland

For general and detailed information about managing this map unit, see the

sections “Use and Management of the Soils” and “Soil Properties.”
42 Soil Survey

CoIC2—Coyle-Ironmound complex, 3 to 5 percent slopes,

eroded

Map Unit Setting

Major land resource area: 80A (fig. 10)

Elevation range: 900 to 1,200 feet

Mean annual precipitation: 32 to 36 inches

Mean annual air temperature: 60 to 61 degrees F

Frost-free period: 200 to 210 days

Major Component Description

Coyle and similar soils

Extent of the component in the map unit: 61 percent

Geomorphic setting: Hill on uplands

Position on landform: Summit

Parent material: Residuum weathered from sandstone

Slope range: 3 to 5 percent

Runoff: High

Depth to bedrock (paralithic): 20 to 40 inches

Slowest permeability class of the soil: Moderate

Slowest permeability class within a depth of 60 inches: Impermeable

Drainage class: Well drained

Available water capacity: About 5.9 inches

Depth to the top of the seasonal high water table: More than 6 feet

Flooding: None

Ponding: None

Figure 10.—Landscape of the Coyle-Ironmound complex, 3 to 5 percent slopes, eroded.
Logan County, Oklahoma 43

Interpretive groups:

Land capability classification—3e

Range site number and name—080AY856OK, Reseeded Loamy Prairie

Typical profile:

Ap—0 to 11 inches; loam

Bt1—11 to 26 inches; clay loam

Bt2—26 to 37 inches; clay loam

Cr—37 to 40 inches; bedrock

Location of representative profile: About 1,250 feet north and 1,850 feet east of the

southwest corner of sec. 23, T. 19 N., R. 4 W.

Ironmound and similar soils

Extent of the component in the map unit: 33 percent

Geomorphic setting: Hill on uplands

Position on landform: Shoulder and backslope

Parent material: Residuum weathered from sandstone

Slope range: 3 to 5 percent

Runoff: Very high

Depth to bedrock (paralithic): 10 to 20 inches

Slowest permeability class of the soil: Moderate

Slowest permeability class within a depth of 60 inches: Impermeable

Drainage class: Well drained

Available water capacity: About 2.8 inches

Depth to the top of the seasonal high water table: More than 6 feet

Flooding: None

Ponding: None

Interpretive groups:

Land capability classification—3e

Range site number and name—080AY883OK, Reseeded Shallow Prairie

Typical profile:

Ap—0 to 5 inches; loam

Bw—5 to 17 inches; loam

Cr—17 to 24 inches; bedrock

Location of representative profile: About 1,250 feet north and 1,450 feet east of the

southwest corner of sec. 23, T. 19 N., R. 4 W.

Management

Major uses: Rangeland

For general and detailed information about managing this map unit, see the

sections “Use and Management of the Soils” and “Soil Properties.”

CoUB—Coyle-Urban land complex, 1 to 3 percent slopes

Map Unit Setting

Major land resource area: 80A

Elevation range: 700 to 2,000 feet

Mean annual precipitation: 22 to 40 inches

Mean annual air temperature: 57 to 64 degrees F

Frost-free period: 185 to 230 days
44 Soil Survey

Major Component Description

Coyle and similar soils

Extent of the component in the map unit: 55 percent

Geomorphic setting: Hillslope on hill on uplands

Position on landform: Shoulder and summit

Parent material: Residuum weathered from sandstone

Slope range: 1 to 3 percent

Runoff: High

Depth to bedrock (paralithic): 20 to 40 inches

Slowest permeability class of the soil: Moderate

Slowest permeability class within a depth of 60 inches: Impermeable

Drainage class: Well drained

Available water capacity: About 3.7 inches

Depth to the top of the seasonal high water table: More than 6 feet

Flooding: None

Ponding: None

Interpretive groups:

Land capability classification—3s

Range site number and name—none assigned

Typical profile:

A—0 to 8 inches; loam

BA—8 to 14 inches; loam

Bt—14 to 22 inches; clay loam

Cr—22 to 30 inches; bedrock

Location of representative profile: Oklahoma County, Oklahoma; about 600 feet west

and 2,180 feet north of the southeast corner of sec. 28, T. 14 N., R. 3 W.

Urban land

Extent of the component in the map unit: 40 percent

Geomorphic setting: Hill on uplands

Position on landform: Summit and shoulder

Parent material: Earthy fill derived from sandstone

Slope range: 1 to 3 percent

Runoff: Very high

Interpretive groups:

Land capability classification—8s

Range site number and name—none assigned

Definition:

Urban land mostly consists of residential and business areas, streets, and parking

areas.

Location of a representative area: Oklahoma County, Oklahoma; about 625 feet west

and 2,100 feet north of the southeast corner of sec. 28, T. 14 N., R. 3 W.

Management

Major uses: Urban land

For general and detailed information about managing this map unit, see the

sections “Use and Management of the Soils” and “Soil Properties.”
Logan County, Oklahoma 45

CoUC—Coyle-Urban land complex, 1 to 5 percent slopes

Map Unit Setting

Major land resource area: 80A

Elevation range: 850 to 1,200 feet

Mean annual precipitation: 32 to 36 inches

Mean annual air temperature: 60 to 61 degrees F

Frost-free period: 200 to 210 days

Major Component Description

Coyle and similar soils

Extent of the component in the map unit: 42 percent

Geomorphic setting: Hill on uplands

Position on landform: Shoulder

Parent material: Residuum weathered from sandstone

Slope range: 1 to 5 percent

Runoff: High

Depth to bedrock (paralithic): 20 to 40 inches

Slowest permeability class of the soil: Moderate

Slowest permeability class within a depth of 60 inches: Impermeable

Drainage class: Well drained

Available water capacity: About 4.7 inches

Depth to the top of the seasonal high water table: More than 6 feet

Flooding: None

Ponding: None

Interpretive groups:

Land capability classification—3e

Range site number and name—none assigned

Typical profile:

Ap—0 to 8 inches; loam

A—8 to 12 inches; loam

Bt1—12 to 22 inches; clay loam

Bt2—22 to 29 inches; clay loam

Cr—29 to 40 inches; bedrock

Location of representative profile: About 200 feet west and 1,250 feet north of the

southeast corner of sec. 3, T. 16 N., R. 2 W.

Urban land

Extent of the component in the map unit: 38 percent

Geomorphic setting: Hill on uplands

Position on landform: Summit and shoulder

Parent material: Mine spoil or earthy fill derived from sandstone

Slope range: 1 to 5 percent

Runoff: Very high

Interpretive groups:

Land capability classification—8s

Range site number and name—none assigned

Definition:

Urban land mostly consists of residential and business areas, paved roads, streets,

and parking areas.
46 Soil Survey

Location of a representative area: About 200 feet west and 1,275 feet north of the

southeast corner of sec. 3, T. 16 N., R. 2 W.

Management

Major uses: Urban land

For general and detailed information about managing this map unit, see the

sections “Use and Management of the Soils” and “Soil Properties.”

CoyB—Coyle loam, 1 to 3 percent slopes

Map Unit Setting

Major land resource area: 80A

Elevation range: 900 to 1,200 feet

Mean annual precipitation: 32 to 36 inches

Mean annual air temperature: 60 to 61 degrees F

Frost-free period: 200 to 210 days

Major Component Description

Coyle and similar soils

Extent of the component in the map unit: 91 percent

Geomorphic setting: Hill on uplands

Position on landform: Summit and shoulder

Parent material: Residuum weathered from sandstone

Slope range: 1 to 3 percent

Runoff: High

Depth to bedrock (paralithic): 20 to 40 inches

Slowest permeability class of the soil: Moderate

Slowest permeability class within a depth of 60 inches: Impermeable

Drainage class: Well drained

Available water capacity: About 4.8 inches

Depth to the top of the seasonal high water table: More than 6 feet

Flooding: None

Ponding: None

Interpretive groups:

Land capability classification—2e

Range site number and name—080AY056OK, Loamy Prairie (fig. 11)

Typical profile:

A—0 to 6 inches; loam

BA—6 to 11 inches; loam

Bt1—11 to 18 inches; clay loam

Bt2—18 to 25 inches; clay loam

BC—25 to 31 inches; clay loam

Cr—31 to 42 inches; bedrock

Location of representative profile: About 450 feet west and 600 feet north of the

southeast corner of sec. 9, T. 18 N., R. 4 W

Management

Major uses: Cropland, hayland, pastureland, and rangeland

For general and detailed information about managing this map unit, see the

sections “Use and Management of the Soils” and “Soil Properties.”
Logan County, Oklahoma 47

CoyC2—Coyle loam, 3 to 5 percent slopes, eroded

Map Unit Setting

Major land resource area: 80A

Elevation range: 900 to 1,200 feet

Mean annual precipitation: 32 to 36 inches

Mean annual air temperature: 60 to 61 degrees F

Frost-free period: 200 to 210 days

Major Component Description

Coyle and similar soils

Extent of the component in the map unit: 91 percent

Geomorphic setting: Hill on uplands

Position on landform: Backslope

Parent material: Residuum weathered from sandstone

Slope range: 3 to 5 percent

Figure 11.—Native grasses on Coyle loam, 1 to 3 percent slopes.
48 Soil Survey

Runoff: High

Depth to bedrock (paralithic): 20 to 40 inches

Slowest permeability class of the soil: Moderate

Slowest permeability class within a depth of 60 inches: Impermeable

Drainage class: Well drained

Available water capacity: About 4.3 inches

Depth to the top of the seasonal high water table: More than 6 feet

Flooding: None

Ponding: None

Interpretive groups:

Land capability classification—3e

Range site number and name—080AY856OK, Reseeded Loamy Prairie

Typical profile:

Ap—0 to 5 inches; loam

BA—5 to 10 inches; loam

Bt1—10 to 14 inches; sandy clay loam

Bt2—14 to 18 inches; sandy clay loam

BC—18 to 27 inches; fine sandy loam

Cr—27 to 37 inches; bedrock

Location of representative profile: About 1,450 feet east and 1,600 feet north of the

southwest corner of sec. 34, T. 17 N., R. 2 W.

Management

Major uses: Cropland, hayland, pastureland, and rangeland

For general and detailed information about managing this map unit, see the

sections “Use and Management of the Soils” and “Soil Properties.”

CoZC3—Coyle and Zaneis soils, 3 to 5 percent slopes,

severely eroded

Map Unit Setting

Major land resource area: 80A

Elevation range: 900 to 1,200 feet

Mean annual precipitation: 32 to 36 inches

Mean annual air temperature: 60 to 61 degrees F

Frost-free period: 200 to 210 days

Major Component Description

Coyle and similar soils

Extent of the component in the map unit: 70 percent

Geomorphic setting: Hill on uplands

Position on landform: Shoulder and summit

Parent material: Residuum weathered from sandstone

Slope range: 3 to 5 percent

Runoff: High

Depth to bedrock (paralithic): 20 to 40 inches

Slowest permeability class of the soil: Moderate

Slowest permeability class within a depth of 60 inches: Impermeable
Logan County, Oklahoma 49

Drainage class: Well drained

Available water capacity: About 4.8 inches

Depth to the top of the seasonal high water table: More than 6 feet

Flooding: None

Ponding: None

Interpretive groups:

Land capability classification—6e

Range site number and name—080AY856OK, Reseeded Loamy Prairie

Typical profile:

Ap—0 to 6 inches; loam

Bt1—6 to 18 inches; clay loam

Bt2—18 to 31 inches; clay loam

Cr—31 to 40 inches; bedrock

Location of representative profile: About 1,900 feet east and 1,100 feet south of the

northwest corner of sec. 22, T. 19 N., R. 2 W.

Zaneis and similar soils

Extent of the component in the map unit: 15 percent

Geomorphic setting: Hill on uplands

Position on landform: Summit and shoulder

Parent material: Residuum weathered from sandstone

Slope range: 3 to 5 percent

Runoff: Medium

Depth to bedrock (paralithic): 40 to 60 inches

Slowest permeability class of the soil: Moderately slow

Slowest permeability class within a depth of 60 inches: Impermeable

Drainage class: Well drained

Available water capacity: About 7.6 inches

Depth to the top of the seasonal high water table: More than 6 feet

Flooding: None

Ponding: None

Interpretive groups:

Land capability classification—6e

Range site number and name—080AY856OK, Reseeded Loamy Prairie

Typical profile:

Ap—0 to 5 inches; loam

Bt1—5 to 15 inches; clay loam

Bt2—15 to 35 inches; clay loam

Bt3—35 to 47 inches; clay loam

Cr—47 to 60 inches; bedrock

Location of representative profile: About 1,900 feet east and 1,050 feet south of the

northwest corner of sec. 22, T. 19 N., R. 2 W.

Management

Major uses: Rangeland

For general and detailed information about managing this map unit, see the

sections “Use and Management of the Soils” and “Soil Properties.”
50 Soil Survey

DAM—Dam

Map Unit Setting

Major land resource area: 80A

Elevation range: 850 to 1,200 feet

Mean annual precipitation: 32 to 36 inches

Mean annual air temperature: 60 to 61 degrees F

Frost-free period: 200 to 210 days

Major Component Description

Dam

Extent of the component in the map unit: 100 percent

Geomorphic setting: Hill on uplands

Parent material: Mine spoil or earthy fill

Slope range: 3 to 45 percent

Runoff: Very high

Interpretive groups:

Land capability classification—8s

Range site number and name—none assigned

Definition:

This map unit consists of manmade dams for ponds and lakes.

Location of a representative area: About 700 feet east and 100 feet south of the

northwest corner of sec. 32, T. 15 N., R. 2 W.

Management

For general and detailed information about managing this map unit, see the

sections “Use and Management of the Soils” and “Soil Properties.”

DerB—Derby loamy fine sand, 0 to 3 percent slopes

Map Unit Setting

Major land resource area: 80A

Elevation range: 850 to 1,100 feet

Mean annual precipitation: 32 to 36 inches

Mean annual air temperature: 60 to 61 degrees F

Frost-free period: 200 to 210 days

Major Component Description

Derby and similar soils

Extent of the component in the map unit: 90 percent

Geomorphic setting: Dune in a dunefield on sandhills in a valley

Position on landform: Summit and backslope

Parent material: Sandy eolian deposits

Slope range: 0 to 3 percent

Runoff: Negligible

Soil depth: More than 60 inches

Slowest permeability class of the soil: Rapid

Slowest permeability class within a depth of 60 inches: Rapid

Drainage class: Somewhat excessively drained
Logan County, Oklahoma 51

Available water capacity: About 5.0 inches

Depth to the top of the seasonal high water table: More than 6 feet

Flooding: None

Ponding: None

Interpretive groups:

Land capability classification—3s

Range site number and name—084AY018OK, Deep Sand Savannah

Typical profile:

Ap—0 to 11 inches; loamy fine sand

A—11 to 30 inches; loamy fine sand

E—30 to 52 inches; loamy fine sand

E and Bt—52 to 84 inches; stratified fine sand to loamy fine sand to fine sandy loam

Location of representative profile: About 900 feet east and 2,000 feet south of the

northwest corner of sec. 7, T. 16 N., R. 4 W.

Management

Major uses: Cropland, hayland, and pastureland

For general and detailed information about managing this map unit, see the

sections “Use and Management of the Soils” and “Soil Properties.”

DerD—Derby loamy fine sand, 3 to 8 percent slopes

Map Unit Setting

Major land resource area: 80A

Elevation range: 850 to 1,100 feet

Mean annual precipitation: 32 to 36 inches

Mean annual air temperature: 60 to 61 degrees F

Frost-free period: 200 to 210 days

Major Component Description

Derby and similar soils

Extent of the component in the map unit: 90 percent

Geomorphic setting: Dune in a dunefield on sandhills in a valley

Position on landform: Summit and backslope

Parent material: Sandy eolian deposits

Slope range: 3 to 8 percent

Runoff: Very low

Soil depth: More than 60 inches

Slowest permeability class of the soil: Rapid

Slowest permeability class within a depth of 60 inches: Rapid

Drainage class: Somewhat excessively drained

Available water capacity: About 4.8 inches

Depth to the top of the seasonal high water table: More than 6 feet

Flooding: None

Ponding: None

Interpretive groups:

Land capability classification—4e

Range site number and name—084AY018OK, Deep Sand Savannah
52 Soil Survey

Typical profile:

Ap—0 to 9 inches; loamy fine sand

A—9 to 23 inches; loamy fine sand

E—23 to 49 inches; fine sand

E and Bt—49 to 80 inches; stratified fine sand to loamy fine sand

Location of representative profile: About 1,600 feet east and 2,350 feet south of the

northwest corner of sec. 7, T. 16 N., R. 4 W.

Management

Major uses: Hayland, pastureland, and rangeland

For general and detailed information about managing this map unit, see the

sections “Use and Management of the Soils” and “Soil Properties.”

DerE—Derby loamy fine sand, 8 to 15 percent slopes

Map Unit Setting

Major land resource area: 80A

Elevation range: 850 to 1,100 feet

Mean annual precipitation: 32 to 36 inches

Mean annual air temperature: 60 to 61 degrees F

Frost-free period: 200 to 210 days

Major Component Description

Derby and similar soils

Extent of the component in the map unit: 90 percent

Geomorphic setting: Dune in a dunefield on sandhills in a valley

Position on landform: Summit and backslope

Parent material: Sandy eolian deposits

Slope range: 8 to 15 percent

Runoff: Very low

Soil depth: More than 60 inches

Slowest permeability class of the soil: Rapid

Slowest permeability class within a depth of 60 inches: Rapid

Drainage class: Somewhat excessively drained

Available water capacity: About 4.8 inches

Depth to the top of the seasonal high water table: More than 6 feet

Flooding: None

Ponding: None

Interpretive groups:

Land capability classification—6e

Range site number and name—084AY018OK, Deep Sand Savannah

Typical profile:

Ap—0 to 11 inches; loamy fine sand

A—11 to 20 inches; loamy fine sand

E1—20 to 38 inches; fine sand

E2—38 to 54 inches; fine sand

E and Bt—54 to 80 inches; loamy fine sand

Location of representative profile: About 1,500 feet west and 1,100 feet north of the

southeast corner of sec. 6, T. 16 N., R. 4 W.
Logan County, Oklahoma 53

Management

Major uses: Rangeland

For general and detailed information about managing this map unit, see the

sections “Use and Management of the Soils” and “Soil Properties.”

DiRG—Darsil-Rock outcrop complex, 15 to 45 percent

slopes

Map Unit Setting

Major land resource area: 84A

Elevation range: 900 to 1,200 feet

Mean annual precipitation: 32 to 36 inches

Mean annual air temperature: 60 to 61 degrees F

Frost-free period: 200 to 210 days

Major Component Description

Darsil and similar soils

Extent of the component in the map unit: 67 percent

Geomorphic setting: Drainageway on uplands

Position on landform: Backslope

Parent material: Residuum weathered from sandstone

Slope range: 15 to 45 percent

Runoff: Very high

Depth to bedrock (paralithic): 10 to 20 inches

Slowest permeability class of the soil: Rapid

Slowest permeability class within a depth of 60 inches: Moderately slow

Drainage class: Excessively drained

Available water capacity: About 1.3 inches

Depth to the top of the seasonal high water table: More than 6 feet

Flooding: None

Ponding: None

Interpretive groups:

Land capability classification—7e

Range site number and name—084AY089OK, Shallow Savannah

Typical profile:

A—0 to 4 inches; loamy fine sand

EC—4 to 16 inches; loamy fine sand

Cr—16 to 24 inches; bedrock

Location of representative profile: About 1,450 feet east and 1,200 feet south of the

northwest corner of sec. 36, T. 15 N., R. 1 W.

Rock outcrop

Extent of the component in the map unit: 20 percent

Geomorphic setting: Drainageway on uplands

Position on landform: Backslope

Parent material: Sandstone

Slope range: 15 to 45 percent

Runoff: Very high
54 Soil Survey

Interpretive groups:

Land capability classification—8s

Range site number and name—none assigned

Definition:

Rock outcrop consists of hard bare sandstone bedrock that is exposed at the

surface.

Location of a representative area: About 1,500 feet east and 1,200 feet south of the

northwest corner of sec. 36, T. 15 N., R. 1 W.

Management

Major uses: Rangeland

For general and detailed information about managing this map unit, see the

sections “Use and Management of the Soils” and “Soil Properties.”

DouB—Dougherty loamy fine sand, 0 to 3 percent slopes

Map Unit Setting

Major land resource area: 84A

Elevation range: 900 to 1,100 feet

Mean annual precipitation: 32 to 36 inches

Mean annual air temperature: 60 to 61 degrees F

Frost-free period: 200 to 210 days

Major Component Description

Dougherty and similar soils

Extent of the component in the map unit: 91 percent

Geomorphic setting: Dune in a dunefield on sandhills on uplands

Position on landform: Backslope

Parent material: Fine-loamy eolian deposits

Slope range: 0 to 3 percent

Runoff: Very low

Soil depth: More than 60 inches

Slowest permeability class of the soil: Moderate

Slowest permeability class within a depth of 60 inches: Moderate

Drainage class: Well drained

Available water capacity: About 6.7 inches

Depth to the top of the seasonal high water table: More than 6 feet

Flooding: None

Ponding: None

Interpretive groups:

Land capability classification—3e

Range site number and name—084AY018OK, Deep Sand Savannah

Typical profile:

A—0 to 13 inches; loamy fine sand

E—13 to 26 inches; fine sand

Bt1—26 to 43 inches; sandy clay loam

Bt2—43 to 52 inches; sandy clay loam

BC—52 to 64 inches; fine sandy loam

C—64 to 80 inches; loamy fine sand
Logan County, Oklahoma 55

Location of representative profile: About 1,000 feet south and 100 feet west of the

northeast corner of sec. 19, T. 17 N., R. 4 W.

Management

Major uses: Cropland, hayland, pastureland, and rangeland

For general and detailed information about managing this map unit, see the

sections “Use and Management of the Soils” and “Soil Properties.”

DouD—Dougherty loamy fine sand, 3 to 8 percent slopes

Map Unit Setting

Major land resource area: 84A

Elevation range: 900 to 1,100 feet

Mean annual precipitation: 32 to 36 inches

Mean annual air temperature: 60 to 61 degrees F

Frost-free period: 200 to 210 days

Major Component Description

Dougherty and similar soils

Extent of the component in the map unit: 91 percent

Geomorphic setting: Dune in a dunefield on sandhills on uplands

Position on landform: Backslope

Parent material: Fine-loamy eolian deposits

Slope range: 3 to 8 percent

Runoff: Low

Soil depth: More than 60 inches

Slowest permeability class of the soil: Moderate

Slowest permeability class within a depth of 60 inches: Moderate

Drainage class: Well drained

Available water capacity: About 6.3 inches

Depth to the top of the seasonal high water table: More than 6 feet

Flooding: None

Ponding: None

Interpretive groups:

Land capability classification—4e

Range site number and name—084AY018OK, Deep Sand Savannah

Typical profile:

Ap—0 to 9 inches; loamy fine sand

E—9 to 22 inches; loamy fine sand

Bt1—22 to 32 inches; sandy clay loam

Bt2—32 to 44 inches; fine sandy loam

C—44 to 80 inches; fine sandy loam

Location of representative profile: About 2,400 feet west and 700 feet south of the

northeast corner of sec. 19, T. 17 N., R. 2 W.

Management

Major uses: Rangeland

For general and detailed information about managing this map unit, see the

sections “Use and Management of the Soils” and “Soil Properties.”
56 Soil Survey

DUM—Dumps

Map Unit Setting

Major land resource area: 80A

Elevation range: 900 to 1,200 feet

Mean annual precipitation: 32 to 36 inches

Mean annual air temperature: 60 to 61 degrees F

Frost-free period: 200 to 210 days

Major Component Description

Dumps

Extent of the component in the map unit: 100 percent

Geomorphic setting: Hill on uplands

Parent material: Mine spoil or earthy fill

Slope range: 0 to 50 percent

Runoff: Very high

Interpretive groups:

Land capability classification—8s

Range site number and name—none assigned

Definition:

This map unit consists of trash dumps that include household refuse, tree and grass

trimmings, old tires, and other trash.

Location of a representative area: About 200 feet west and 3,600 feet north of the

southeast corner of sec. 1, T. 16 N., R. 3 W.

Management

For general and detailed information about managing this map unit, see the

sections “Use and Management of the Soils” and “Soil Properties.”

EasA—Easpur loam, 0 to 1 percent slopes, occasionally

flooded

Map Unit Setting

Major land resource area: 80A

Elevation range: 850 to 1,050 feet

Mean annual precipitation: 32 to 36 inches

Mean annual air temperature: 60 to 61 degrees F

Frost-free period: 200 to 210 days

Major Component Description

Easpur and similar soils

Extent of the component in the map unit: 93 percent

Geomorphic setting: Flood plain in a valley

Parent material: Fine-loamy alluvium

Slope range: 0 to 1 percent

Runoff: Negligible

Soil depth: More than 60 inches

Slowest permeability class of the soil: Moderate
Logan County, Oklahoma 57

Slowest permeability class within a depth of 60 inches: Moderate

Drainage class: Well drained

Available water capacity: About 10.2 inches

Depth to the top of the seasonal high water table: More than 6 feet

Flooding: Occasional

Ponding: None

Interpretive groups:

Land capability classification—2w

Range site number and name—080AY050OK, Loamy Bottomland

Typical profile:

Ap—0 to 12 inches; loam

A—12 to 18 inches; loam

Bw—18 to 36 inches; loam

C—36 to 62 inches; stratified fine sandy loam to silty clay loam

Ab—62 to 80 inches; silty clay loam

Location of representative profile: About 2,200 feet north and 100 feet west of the

southeast corner of sec. 33, T. 16 N., R. 1 E.

Management

Major uses: Cropland, hayland, pastureland, and rangeland

For general and detailed information about managing this map unit, see the

sections “Use and Management of the Soils” and “Soil Properties.”

GadA—Gaddy loamy fine sand, 0 to 1 percent slopes,

occasionally flooded

Map Unit Setting

Major land resource area: 80A

Elevation range: 850 to 1,050 feet

Mean annual precipitation: 32 to 36 inches

Mean annual air temperature: 60 to 61 degrees F

Frost-free period: 200 to 210 days

Major Component Description

Gaddy and similar soils

Extent of the component in the map unit: 85 percent

Geomorphic setting: Flood plain in a valley

Parent material: Sandy alluvium

Slope range: 0 to 1 percent

Runoff: Negligible

Soil depth: More than 60 inches

Slowest permeability class of the soil: Rapid

Slowest permeability class within a depth of 60 inches: Rapid

Drainage class: Somewhat excessively drained

Available water capacity: About 4.8 inches

Depth to the top of the seasonal high water table: More than 6 feet

Flooding: Occasional

Ponding: None
58 Soil Survey

Interpretive groups:

Land capability classification—3s

Range site number and name—080AY068OK, Sandy Bottomland

Typical profile:

Ap—0 to 12 inches; loamy fine sand

C1—12 to 29 inches; stratified fine sand to clay loam

C2—29 to 80 inches; stratified fine sand to clay loam

Location of representative profile: About 70 feet north and 2,140 east of the southwest

corner of sec. 9, T. 16 N., R. 4 W.

Management

Major uses: Cropland, hayland, pastureland, and rangeland

For general and detailed information about managing this map unit, see the

sections “Use and Management of the Soils” and “Soil Properties.”

GaGA—Gaddy-Gracemore complex, 0 to 1 percent

slopes, frequently flooded

Map Unit Setting

Major land resource area: 80A

Elevation range: 850 to 1,050 feet

Mean annual precipitation: 32 to 36 inches

Mean annual air temperature: 60 to 61 degrees F

Frost-free period: 200 to 210 days

Major Component Description

Gaddy and similar soils

Extent of the component in the map unit: 67 percent

Geomorphic setting: Flood plain in a valley

Parent material: Sandy alluvium

Slope range: 0 to 1 percent

Runoff: Negligible

Soil depth: More than 60 inches

Slowest permeability class of the soil: Moderately rapid

Slowest permeability class within a depth of 60 inches: Moderately rapid

Drainage class: Somewhat excessively drained

Available water capacity: About 5.0 inches

Depth to the top of the seasonal high water table: More than 6 feet

Flooding: Frequent

Ponding: None

Interpretive groups:

Land capability classification—5w

Range site number and name—080AY068OK, Sandy Bottomland

Typical profile:

Ap—0 to 6 inches; fine sandy loam

C—6 to 80 inches; stratified fine sand to clay loam

Location of representative profile: About 4,500 feet north and 100 feet west of the

southeast corner of sec. 3, T. 17 N., R. 2 W.
Logan County, Oklahoma 59

Gracemore and similar soils

Extent of the component in the map unit: 23 percent

Geomorphic setting: Flood plain in a valley

Parent material: Sandy alluvium

Slope range: 0 to 1 percent

Runoff: High

Soil depth: More than 60 inches

Slowest permeability class of the soil: Moderately rapid

Slowest permeability class within a depth of 60 inches: Moderately rapid

Drainage class: Somewhat poorly drained

Available water capacity: About 5.8 inches

Depth to the top of the seasonal high water table: 0.5 foot to 1.5 feet

Flooding: Frequent

Ponding: None

Interpretive groups:

Land capability classification—5w

Range site number and name—080AY095OK, Subirrigated

Typical profile:

Ap—0 to 12 inches; very fine sandy loam

C—12 to 80 inches; fine sand

Location of representative profile: About 4,000 feet north and 100 feet west of the

southeast corner of sec. 3, T. 17 N., R. 2 W.

Management

Major uses: Rangeland

For general and detailed information about managing this map unit, see the

sections “Use and Management of the Soils” and “Soil Properties.”

GMGE4—Grainola-Masham-Gullied land complex, 5 to 15

percent slopes

Map Unit Setting

Major land resource area: 80A

Elevation range: 900 to 1,200 feet

Mean annual precipitation: 32 to 36 inches

Mean annual air temperature: 60 to 61 degrees F

Frost-free period: 200 to 210 days

Major Component Description

Grainola and similar soils

Extent of the component in the map unit: 40 percent

Geomorphic setting: Hill on uplands

Position on landform: Summit and backslope

Parent material: Residuum weathered from clayey shale

Slope range: 5 to 15 percent

Runoff: Very high

Depth to bedrock (paralithic): 20 to 40 inches

Slowest permeability class of the soil: Very slow

Slowest permeability class within a depth of 60 inches: Impermeable
60 Soil Survey

Drainage class: Well drained

Available water capacity: About 5.8 inches

Depth to the top of the seasonal high water table: More than 6 feet

Flooding: None

Ponding: None

Interpretive groups:

Land capability classification—6e

Range site number and name—080AY810OK, Reseeded Claypan Prairie

Typical profile:

A—0 to 4 inches; clay loam

Btk1—4 to 15 inches; clay

Btk2—15 to 31 inches; clay

BCk—31 to 38 inches; very gravelly clay

Cr—38 to 40 inches; bedrock

Location of representative profile: About 2,600 feet south and 850 feet west of the

northeast corner of sec. 31, T. 16 N., R. 1 E.

Masham and similar soils

Extent of the component in the map unit: 30 percent

Geomorphic setting: Hill on uplands

Position on landform: Shoulder and backslope

Parent material: Residuum weathered from clayey shale

Slope range: 5 to 15 percent

Runoff: Very high

Depth to bedrock (paralithic): 10 to 20 inches

Slowest permeability class of the soil: Slow

Slowest permeability class within a depth of 60 inches: Impermeable

Drainage class: Well drained

Available water capacity: About 2.7 inches

Depth to the top of the seasonal high water table: More than 6 feet

Flooding: None

Ponding: None

Interpretive groups:

Land capability classification—6e

Range site number and name—080AY880OK, Reseeded Clay

Typical profile:

Akp—0 to 5 inches; clay loam

Bw—5 to 16 inches; clay

Cr—16 to 35 inches; bedrock

Location of representative profile: About 2,250 feet south and 400 feet west of the

northeast corner of sec. 31, T. 16 N., R. 1 E.

Gullied land

Extent of the component in the map unit: 20 percent

Geomorphic setting: Hill on uplands

Position on landform: Shoulder, backslope, and footslope

Parent material: Residuum weathered from clayey shale

Slope range: 5 to 15 percent

Runoff: Very high
Logan County, Oklahoma 61

Interpretive groups:

Land capability classification—8e

Range site number and name—none assigned

Definition:

Gullied land consists of deep uncrossable gullies that have cut into the clayey

subsoil of the Grainola and Masham soils. Unweathered shale bedrock is exposed in

the bottom of the gullies.

Location of a representative area: About 2,100 feet south and 200 feet west of the

northeast corner of sec. 31, T. 16 N., R. 1 E.

Management

Major uses: Rangeland

For general and detailed information about managing this map unit, see the

sections “Use and Management of the Soils” and “Soil Properties.”

GMLG—Grainola-Masham-Lucien complex, 5 to 40

percent slopes, very bouldery

Map Unit Setting

Major land resource area: 80A

Elevation range: 900 to 1,200 feet

Mean annual precipitation: 32 to 36 inches

Mean annual air temperature: 60 to 61 degrees F

Frost-free period: 200 to 210 days

Major Component Description

Grainola and similar soils

Extent of the component in the map unit: 37 percent

Geomorphic setting: Hill on uplands

Position on landform: Footslope and backslope

Parent material: Clayey residuum weathered from clayey shale

Slope range: 5 to 25 percent

Runoff: Very high

Depth to bedrock (paralithic): 20 to 40 inches

Slowest permeability class of the soil: Very slow

Slowest permeability class within a depth of 60 inches: Impermeable

Drainage class: Well drained

Available water capacity: About 4.2 inches

Depth to the top of the seasonal high water table: More than 6 feet

Flooding: None

Ponding: None

Interpretive groups:

Land capability classification—6e

Range site number and name—080AY010OK, Claypan Prairie (north)

Typical profile:

A—0 to 5 inches; gravelly loam

Btk—5 to 24 inches; gravelly silty clay

BC—24 to 30 inches; very gravelly silty clay

Cr—30 to 40 inches; bedrock
62 Soil Survey

Location of representative profile: About 250 feet east and 450 feet north of the

southwest corner of sec. 34, T. 22 N., R. 1 E.

Masham and similar soils

Extent of the component in the map unit: 22 percent

Geomorphic setting: Hill on uplands

Position on landform: Backslope

Parent material: Clayey residuum weathered from clayey shale

Slope range: 20 to 40 percent

Runoff: Very high

Depth to bedrock (paralithic): 10 to 20 inches

Slowest permeability class of the soil: Slow

Slowest permeability class within a depth of 60 inches: Impermeable

Drainage class: Well drained

Available water capacity: About 2.2 inches

Depth to the top of the seasonal high water table: More than 6 feet

Flooding: None

Ponding: None

Interpretive groups:

Land capability classification—7e

Range site number and name—080AY080OK, Shallow Clay Prairie

Typical profile:

A—0 to 4 inches; silty clay loam

Bw—4 to 13 inches; silty clay

Cr—13 to 25 inches; bedrock

Location of representative profile: About 600 feet east and 750 feet north of the

southwest corner of sec. 34, T. 22 N., R. 1 E.

Lucien and similar soils

Extent of the component in the map unit: 21 percent

Geomorphic setting: Hill on uplands

Position on landform: Shoulder

Parent material: Loamy residuum weathered from sandstone

Slope range: 15 to 20 percent

Runoff: Very high

Depth to bedrock (paralithic): 10 to 20 inches

Slowest permeability class of the soil: Moderately rapid

Slowest permeability class within a depth of 60 inches: Very slow

Drainage class: Well drained

Available water capacity: About 3.0 inches

Depth to the top of the seasonal high water table: More than 6 feet

Flooding: None

Ponding: None

Interpretive groups:

Land capability classification—6e

Range site number and name—080AY083OK, Shallow Prairie

Typical profile:

A—0 to 6 inches; loam

Bw—6 to 17 inches; very fine sandy loam

Cr—17 to 30 inches; bedrock
Logan County, Oklahoma 63

Location of representative profile: About 700 feet east and 750 feet north of the

southwest corner of sec. 34, T. 22 N., R. 1 E.

Management

Major uses: Rangeland

For general and detailed information about managing this map unit, see the

sections “Use and Management of the Soils” and “Soil Properties.”

GohC—Goodnight loamy fine sand, 1 to 5 percent slopes

Map Unit Setting

Major land resource area: 80A

Elevation range: 850 to 1,100 feet

Mean annual precipitation: 32 to 36 inches

Mean annual air temperature: 60 to 61 degrees F

Frost-free period: 200 to 210 days

Major Component Description

Goodnight and similar soils

Extent of the component in the map unit: 92 percent

Geomorphic setting: Dune in a dunefield on sandhills in a valley

Position on landform: Summit and backslope

Parent material: Sandy eolian deposits

Slope range: 1 to 5 percent

Runoff: Negligible

Soil depth: More than 60 inches

Slowest permeability class of the soil: Rapid

Slowest permeability class within a depth of 60 inches: Rapid

Drainage class: Excessively drained

Available water capacity: About 4.2 inches

Depth to the top of the seasonal high water table: More than 6 feet

Flooding: None

Ponding: None

Interpretive groups:

Land capability classification—3e

Range site number and name—080AY014OK, Deep Sand

Typical profile:

A—0 to 9 inches; loamy fine sand

AC1—9 to 18 inches; loamy fine sand

AC2—18 to 25 inches; loamy fine sand

C1—25 to 64 inches; fine sand

C2—64 to 80 inches; fine sand

Location of representative profile: About 1,650 feet east and 500 feet north of the

southwest corner of sec. 36, T. 17 N., R. 3 W.

Management

Major uses: Pastureland and rangeland

For general and detailed information about managing this map unit, see the

sections “Use and Management of the Soils” and “Soil Properties.”
64 Soil Survey

GohE—Goodnight loamy fine sand, 5 to 15 percent slopes

Map Unit Setting

Major land resource area: 80A

Elevation range: 850 to 1,100 feet

Mean annual precipitation: 32 to 36 inches

Mean annual air temperature: 60 to 61 degrees F

Frost-free period: 200 to 210 days

Major Component Description

Goodnight and similar soils

Extent of the component in the map unit: 92 percent

Geomorphic setting: Dune in a dunefield on sandhills in a valley

Position on landform: Summit and backslope

Parent material: Sandy eolian deposits

Slope range: 5 to 15 percent

Runoff: Very low

Soil depth: More than 60 inches

Slowest permeability class of the soil: Rapid

Slowest permeability class within a depth of 60 inches: Rapid

Drainage class: Excessively drained

Available water capacity: About 4.2 inches

Depth to the top of the seasonal high water table: More than 6 feet

Flooding: None

Ponding: None

Interpretive groups:

Land capability classification—6e

Range site number and name—080AY014OK, Deep Sand

Typical profile:

A—0 to 10 inches; loamy fine sand

AC1—10 to 22 inches; loamy fine sand

AC2—22 to 32 inches; fine sand

C1—32 to 52 inches; fine sand

C2—52 to 80 inches; fine sand

Location of representative profile: About 1,900 feet east and 550 feet north of the

southwest corner of sec. 36, T. 17 N., R. 3 W.

Management

Major uses: Pastureland and rangeland

For general and detailed information about managing this map unit, see the

sections “Use and Management of the Soils” and “Soil Properties.”

GooE—Goodnight fine sand, 1 to 15 percent slopes

Map Unit Setting

Major land resource area: 80A

Elevation range: 850 to 1,100 feet

Mean annual precipitation: 32 to 36 inches
Logan County, Oklahoma 65

Mean annual air temperature: 60 to 61 degrees F

Frost-free period: 200 to 210 days

Major Component Description

Goodnight and similar soils

Extent of the component in the map unit: 92 percent

Geomorphic setting: Dune in a dunefield on sandhills in a valley

Position on landform: Summit and backslope

Parent material: Sandy eolian deposits

Slope range: 1 to 15 percent

Runoff: Very low

Soil depth: More than 60 inches

Slowest permeability class of the soil: Rapid

Slowest permeability class within a depth of 60 inches: Rapid

Drainage class: Excessively drained

Available water capacity: About 4.0 inches

Depth to the top of the seasonal high water table: More than 6 feet

Flooding: None

Ponding: None

Interpretive groups:

Land capability classification—6e

Range site number and name—080AY022OK, Dune

Typical profile:

A—0 to 6 inches; fine sand

AC—6 to 20 inches; fine sand

C—20 to 80 inches; fine sand

Location of representative profile: About 3,000 feet south and 200 feet east of the

northwest corner of sec. 17, T. 16 N., R. 4 W.

Management

Major uses: Pastureland and rangeland

For general and detailed information about managing this map unit, see the

sections “Use and Management of the Soils” and “Soil Properties.”

GooG—Goodnight fine sand, 15 to 45 percent slopes

Map Unit Setting

Major land resource area: 80A

Elevation range: 850 to 1,100 feet

Mean annual precipitation: 32 to 36 inches

Mean annual air temperature: 60 to 61 degrees F

Frost-free period: 200 to 210 days

Major Component Description

Goodnight and similar soils

Extent of the component in the map unit: 92 percent

Geomorphic setting: Dune in a dunefield on sandhills in a valley

Position on landform: Summit and shoulder

Parent material: Sandy eolian deposits

Slope range: 15 to 45 percent
66 Soil Survey

Runoff: Low

Soil depth: More than 60 inches

Slowest permeability class of the soil: Rapid

Slowest permeability class within a depth of 60 inches: Rapid

Drainage class: Excessively drained

Available water capacity: About 3.9 inches

Depth to the top of the seasonal high water table: More than 6 feet

Flooding: None

Ponding: None

Interpretive groups:

Land capability classification—7e

Range site number and name—080AY022OK, Dune

Typical profile:

A—0 to 8 inches; fine sand

AC1—8 to 23 inches; fine sand

AC2—23 to 45 inches; fine sand

C—45 to 80 inches; fine sand

Location of representative profile: About 2,950 feet south and 600 feet west of the

northeast corner of sec. 34, T. 18 N., R. 2 W.

Management

Major uses: Rangeland

For general and detailed information about managing this map unit, see the

sections “Use and Management of the Soils” and “Soil Properties.”

GraC—Grainola silty clay loam, 3 to 5 percent slopes

Map Unit Setting

Major land resource area: 80A

Elevation range: 900 to 1,200 feet

Mean annual precipitation: 32 to 36 inches

Mean annual air temperature: 60 to 61 degrees F

Frost-free period: 200 to 210 days

Major Component Description

Grainola and similar soils

Extent of the component in the map unit: 88 percent

Geomorphic setting: Hill on uplands

Position on landform: Backslope

Parent material: Clayey residuum weathered from clayey shale

Slope range: 3 to 5 percent

Runoff: Very high

Depth to bedrock (paralithic): 20 to 40 inches

Slowest permeability class of the soil: Very slow

Slowest permeability class within a depth of 60 inches: Impermeable

Drainage class: Well drained

Available water capacity: About 5.1 inches

Depth to the top of the seasonal high water table: More than 6 feet

Flooding: None

Ponding: None
Logan County, Oklahoma 67

Interpretive groups:

Land capability classification—4e

Range site number and name—080AY010OK, Claypan Prairie (north)

Typical profile:

A—0 to 5 inches; silty clay loam

Btk1—5 to 18 inches; silty clay

Btk2—18 to 27 inches; silty clay

BCk—27 to 32 inches; clay

Cr—32 to 42 inches; bedrock

Location of representative profile: About 250 feet east and 600 feet south of the

northwest corner of sec. 35, T. 15 N., R. 1 W.

Management

Major uses: Hayland, pastureland, and rangeland

For general and detailed information about managing this map unit, see the

sections “Use and Management of the Soils” and “Soil Properties.”

GraD2—Grainola silty clay loam, 5 to 8 percent slopes,

eroded

Map Unit Setting

Major land resource area: 80A

Elevation range: 900 to 1,200 feet

Mean annual precipitation: 32 to 36 inches

Mean annual air temperature: 60 to 61 degrees F

Frost-free period: 200 to 210 days

Major Component Description

Grainola and similar soils

Extent of the component in the map unit: 89 percent

Geomorphic setting: Hill on uplands

Position on landform: Backslope

Parent material: Clayey residuum weathered from clayey shale

Slope range: 5 to 8 percent

Runoff: Very high

Depth to bedrock (paralithic): 20 to 40 inches

Slowest permeability class of the soil: Very slow

Slowest permeability class within a depth of 60 inches: Impermeable

Drainage class: Well drained

Available water capacity: About 5.9 inches

Depth to the top of the seasonal high water table: More than 6 feet

Flooding: None

Ponding: None

Interpretive groups:

Land capability classification—6e

Range site number and name—080AY810OK, Reseeded Claypan Prairie

Typical profile:

A—0 to 4 inches; silty clay loam

Btk—4 to 26 inches; silty clay
68 Soil Survey

BCk—26 to 38 inches; silty clay

Cr—38 to 48 inches; bedrock

Location of representative profile: About 1,050 feet east and 1,200 feet north of the

southwest corner of sec. 17, T. 15 N., R. 1 E.

Management

Major uses: Pastureland and rangeland

For general and detailed information about managing this map unit, see the

sections “Use and Management of the Soils” and “Soil Properties.”

GrHC—Grant-Huska complex, 1 to 5 percent slopes

Map Unit Setting

Major land resource area: 80A

Elevation range: 900 to 1,200 feet

Mean annual precipitation: 32 to 36 inches

Mean annual air temperature: 60 to 61 degrees F

Frost-free period: 200 to 210 days

Major Component Description

Grant and similar soils

Extent of the component in the map unit: 45 percent

Geomorphic setting: Hill on uplands

Position on landform: Backslope and summit

Parent material: Fine-silty residuum weathered from sandstone

Slope range: 3 to 5 percent

Runoff: Low

Depth to bedrock (paralithic): 40 to 60 inches

Slowest permeability class of the soil: Moderate

Slowest permeability class within a depth of 60 inches: Very slow

Drainage class: Well drained

Available water capacity: About 9.7 inches

Depth to the top of the seasonal high water table: More than 6 feet

Flooding: None

Ponding: None

Interpretive groups:

Land capability classification—3e

Range site number and name—080AY056OK, Loamy Prairie

Typical profile:

A—0 to 7 inches; silt loam

BA—7 to 11 inches; silt loam

Bt1—11 to 17 inches; silty clay loam

Bt2—17 to 35 inches; silty clay loam

Bt3—35 to 54 inches; silty clay loam

Cr—54 to 58 inches; bedrock

Location of representative profile: About 2,600 feet south and 100 feet east of the

northwest corner of sec. 24, T. 23 N., R. 1 E.

Huska and similar soils

Extent of the component in the map unit: 35 percent
Logan County, Oklahoma 69

Geomorphic setting: Hill on uplands

Position on landform: Backslope and summit

Parent material: Clayey residuum weathered from sandstone and shale

Slope range: 1 to 5 percent

Runoff: Very high

Depth to bedrock (paralithic): 40 to 60 inches

Slowest permeability class of the soil: Very slow

Slowest permeability class within a depth of 60 inches: Impermeable

Drainage class: Moderately well drained

Available water capacity: About 4.4 inches

Depth to the top of the seasonal high water table: More than 6 feet

Flooding: None

Ponding: None

Salt affected: Saline within a depth of 30 inches

Sodium affected: Sodic within a depth of 30 inches

Interpretive groups:

Land capability classification—4s

Range site number and name—080AY091OK, Slickspot

Typical profile:

A—0 to 6 inches; silt loam

Btn—6 to 17 inches; silty clay

Btnz—17 to 32 inches; silty clay

Bt—32 to 40 inches; silty clay

BC—40 to 50 inches; silty clay

Cr—50 to 54 inches; bedrock

Location of representative profile: About 2,600 feet south and 400 feet east of the

northwest corner of sec. 24, T. 23 N., R. 1 E.

Management

Major uses: Rangeland

For general and detailed information about managing this map unit, see the

sections “Use and Management of the Soils” and “Soil Properties.”

GrIE—Grainola-Ironmound complex, 3 to 12 percent

slopes

Map Unit Setting

Major land resource area: 80A

Elevation range: 700 to 1,500 feet

Mean annual precipitation: 26 to 40 inches

Mean annual air temperature: 57 to 64 degrees F

Frost-free period: 200 to 230 days

Major Component Description

Grainola and similar soils

Extent of the component in the map unit: 71 percent

Geomorphic setting: Hillslope on hill on uplands

Position on landform: Shoulder and summit

Parent material: Residuum weathered from clayey shale

Slope range: 3 to 12 percent
70 Soil Survey

Runoff: Very high

Depth to bedrock (paralithic): 20 to 40 inches

Slowest permeability class of the soil: Slow

Slowest permeability class within a depth of 60 inches: Impermeable

Drainage class: Well drained

Available water capacity: About 6.3 inches

Depth to the top of the seasonal high water table: More than 6 feet

Flooding: None

Ponding: None

Interpretive groups:

Land capability classification—6e

Range site number and name—080AY010OK, Claypan Prairie (north)

Typical profile:

Ap—0 to 7 inches; silty clay loam

BA—7 to 12 inches; silty clay

Btk1—12 to 27 inches; silty clay

Btk2—27 to 38 inches; silty clay

Cr—38 to 46 inches; bedrock

Location of representative profile: Oklahoma County, Oklahoma; about 280 feet north

and 740 feet west of the southeast corner of sec. 28, T. 12 N., R. 2 W.

Ironmound and similar soils

Extent of the component in the map unit: 20 percent

Geomorphic setting: Hillslope on hill on uplands

Position on landform: Shoulder and backslope

Parent material: Residuum weathered from sandstone

Slope range: 3 to 12 percent

Runoff: Very high

Depth to bedrock (paralithic): 10 to 20 inches

Slowest permeability class of the soil: Moderate

Slowest permeability class within a depth of 60 inches: Impermeable

Drainage class: Well drained

Available water capacity: About 2.7 inches

Depth to the top of the seasonal high water table: More than 6 feet

Flooding: None

Ponding: None

Interpretive groups:

Land capability classification—6e

Range site number and name—080AY083OK, Shallow Prairie

Typical profile:

Ap—0 to 7 inches; fine sandy loam

Bw—7 to 18 inches; fine sandy loam

Cr—18 to 22 inches; bedrock

Location of representative profile: Oklahoma County, Oklahoma; about 180 feet north

and 900 feet west of the southeast corner of sec. 28, T. 12 N., R. 2 W.

Management

Major uses: Rangeland

For general and detailed information about managing this map unit, see the

sections “Use and Management of the Soils” and “Soil Properties.”
Logan County, Oklahoma 71

GrLE—Grainola-Lucien complex, 5 to 12 percent slopes

Map Unit Setting

Major land resource area: 80A

Elevation range: 900 to 1,200 feet

Mean annual precipitation: 32 to 36 inches

Mean annual air temperature: 60 to 61 degrees F

Frost-free period: 200 to 210 days

Major Component Description

Grainola and similar soils

Extent of the component in the map unit: 55 percent

Geomorphic setting: Hill on uplands

Position on landform: Backslope

Parent material: Clayey residuum weathered from clayey shale

Slope range: 5 to 12 percent

Runoff: Very high

Depth to bedrock (paralithic): 20 to 40 inches

Slowest permeability class of the soil: Very slow

Slowest permeability class within a depth of 60 inches: Impermeable

Drainage class: Well drained

Available water capacity: About 4.4 inches

Depth to the top of the seasonal high water table: More than 6 feet

Flooding: None

Ponding: None

Interpretive groups:

Land capability classification—6e

Range site number and name—080AY010OK, Claypan Prairie (north)

Typical profile:

A—0 to 8 inches; clay loam

Bt—8 to 20 inches; silty clay

BC—20 to 27 inches; silty clay

Cr—27 to 30 inches; bedrock

Location of representative profile: About 1,300 feet west and 20 feet north of the

southeast corner of sec. 33, T. 21 N., R. 1 W.

Lucien and similar soils

Extent of the component in the map unit: 26 percent

Geomorphic setting: Hill on uplands

Position on landform: Summit and shoulder

Parent material: Loamy residuum weathered from sandstone

Slope range: 5 to 12 percent

Runoff: Very high

Depth to bedrock (paralithic): 10 to 20 inches

Slowest permeability class of the soil: Moderately rapid

Slowest permeability class within a depth of 60 inches: Very slow

Drainage class: Well drained

Available water capacity: About 2.1 inches

Depth to the top of the seasonal high water table: More than 6 feet

Flooding: None

Ponding: None
72 Soil Survey

Interpretive groups:

Land capability classification—6e

Range site number and name—080AY083OK, Shallow Prairie

Typical profile:

A—0 to 7 inches; loam

Bw—7 to 12 inches; loam

Cr—12 to 15 inches; bedrock

Location of representative profile: About 1,500 feet west and 20 feet north of the

southeast corner of sec. 33, T. 21 N., R. 1 W.

Management

Major uses: Pastureland and rangeland

For general and detailed information about managing this map unit, see the

sections “Use and Management of the Soils” and “Soil Properties.”

HaGD4—Harrah-Gullied land complex, 5 to 8 percent

slopes

Map Unit Setting

Major land resource area: 84A

Elevation range: 900 to 1,200 feet

Mean annual precipitation: 32 to 36 inches

Mean annual air temperature: 60 to 61 degrees F

Frost-free period: 200 to 210 days

Major Component Description

Harrah and similar soils

Extent of the component in the map unit: 70 percent

Geomorphic setting: Hill on uplands

Position on landform: Footslope

Parent material: Fine-loamy colluvium derived from sandstone

Slope range: 5 to 8 percent

Runoff: Medium

Soil depth: More than 60 inches

Slowest permeability class of the soil: Moderate

Slowest permeability class within a depth of 60 inches: Moderate

Drainage class: Well drained

Available water capacity: About 8.2 inches

Depth to the top of the seasonal high water table: More than 6 feet

Flooding: None

Ponding: None

Interpretive groups:

Land capability classification—6e

Range site number and name—084AY876OK, Reseeded Sandy Savannah

Typical profile:

Ap—0 to 4 inches; fine sandy loam

Bt1—4 to 22 inches; sandy clay loam

Bt2—22 to 42 inches; sandy clay loam

Bt3—42 to 54 inches; sandy clay loam
Logan County, Oklahoma 73

Bt4—54 to 72 inches; sandy clay loam

BC—72 to 80 inches; sandy clay loam

Location of representative profile: About 2,250 feet west and 700 feet south of the

northeast corner of sec. 28, T. 15 N., R. 1 E.

Gullied land

Extent of the component in the map unit: 15 percent

Geomorphic setting: Hill on uplands

Position on landform: Footslope

Parent material: Sandstone

Slope range: 5 to 8 percent

Runoff: Very high

Interpretive groups:

Land capability classification—8e

Range site number and name—none assigned

Definition:

Gullied land consists of areas where deep, uncrossable gullies have cut into the

subsoil of the Harrah soil.

Location of a representative area: About 725 feet south and 2,250 feet west of the

northeast corner of sec. 28, T. 15 N., R. 1 E.

Management

Major uses: Rangeland

For general and detailed information about managing this map unit, see the

sections “Use and Management of the Soils” and “Soil Properties.”

HarC—Harrah fine sandy loam, 3 to 5 percent slopes

Map Unit Setting

Major land resource area: 84A

Elevation range: 900 to 1,200 feet

Mean annual precipitation: 32 to 36 inches

Mean annual air temperature: 60 to 61 degrees F

Frost-free period: 200 to 210 days

Major Component Description

Harrah and similar soils

Extent of the component in the map unit: 91 percent

Geomorphic setting: Hill on uplands

Position on landform: Footslope

Parent material: Fine-loamy colluvium derived from sandstone

Slope range: 3 to 5 percent

Runoff: Low

Soil depth: More than 60 inches

Slowest permeability class of the soil: Moderate

Slowest permeability class within a depth of 60 inches: Moderate

Drainage class: Well drained

Available water capacity: About 7.9 inches

Depth to the top of the seasonal high water table: More than 6 feet
74 Soil Survey

Flooding: None

Ponding: None

Interpretive groups:

Land capability classification—3e

Range site number and name—084AY076OK, Sandy Savannah (central)

Typical profile:

A—0 to 7 inches; fine sandy loam

E—7 to 16 inches; fine sandy loam

Bt1—16 to 39 inches; sandy clay loam

Bt2—39 to 64 inches; sandy clay loam

Bt3—64 to 72 inches; sandy clay loam

Bt4—72 to 80 inches; sandy clay loam

Location of representative profile: About 2,000 feet south and 1,100 feet west of the

northeast corner of sec. 35, T. 15 N., R. 1 W.

Management

Major uses: Hayland, pastureland, and rangeland

For general and detailed information about managing this map unit, see the

sections “Use and Management of the Soils” and “Soil Properties.”

HarC2—Harrah fine sandy loam, 3 to 5 percent slopes,

eroded

Map Unit Setting

Major land resource area: 84A

Elevation range: 900 to 1,200 feet

Mean annual precipitation: 32 to 36 inches

Mean annual air temperature: 60 to 61 degrees F

Frost-free period: 200 to 210 days

Major Component Description

Harrah and similar soils

Extent of the component in the map unit: 91 percent

Geomorphic setting: Hill on uplands

Position on landform: Footslope

Parent material: Fine-loamy colluvium derived from sandstone

Slope range: 3 to 5 percent

Runoff: Low

Soil depth: More than 60 inches

Slowest permeability class of the soil: Moderate

Slowest permeability class within a depth of 60 inches: Moderate

Drainage class: Well drained

Available water capacity: About 8.2 inches

Depth to the top of the seasonal high water table: More than 6 feet

Flooding: None

Ponding: None

Interpretive groups:

Land capability classification—4e

Range site number and name—084AY876OK, Reseeded Sandy Savannah
Logan County, Oklahoma 75

Typical profile:

Ap—0 to 8 inches; fine sandy loam

Bt1—8 to 30 inches; sandy clay loam

Bt2—30 to 63 inches; sandy clay loam

BC—63 to 80 inches; fine sandy loam

Location of representative profile: About 1,650 feet east and 1,900 feet south of the

northwest corner of sec. 26, T. 15 N., R. 1 W.

Management

Major uses: Hayland, pastureland, and rangeland

For general and detailed information about managing this map unit, see the

sections “Use and Management of the Soils” and “Soil Properties.”

HarG—Harrah fine sandy loam, 3 to 45 percent slopes

Map Unit Setting

Major land resource area: 84A

Elevation range: 900 to 1,200 feet

Mean annual precipitation: 32 to 36 inches

Mean annual air temperature: 60 to 61 degrees F

Frost-free period: 200 to 210 days

Major Component Description

Harrah and similar soils

Extent of the component in the map unit: 86 percent

Geomorphic setting: Hill on uplands

Position on landform: Backslope and footslope

Parent material: Fine-loamy colluvium derived from sandstone

Slope range: 3 to 45 percent

Runoff: High

Soil depth: More than 60 inches

Slowest permeability class of the soil: Moderate

Slowest permeability class within a depth of 60 inches: Moderate

Drainage class: Well drained

Available water capacity: About 8.0 inches

Depth to the top of the seasonal high water table: More than 6 feet

Flooding: None

Ponding: None

Interpretive groups:

Land capability classification—7e

Range site number and name—084AY076OK, Sandy Savannah (central)

Typical profile:

A—0 to 6 inches; fine sandy loam

E—6 to 12 inches; fine sandy loam

Bt1—12 to 32 inches; sandy clay loam

Bt2—32 to 54 inches; sandy clay loam

Bt3—54 to 72 inches; sandy clay loam

Bt4—72 to 80 inches; fine sandy loam

Location of representative profile: About 1,475 feet east and 350 feet north of the

southwest corner of sec. 12, T. 16 N., R. 1 E.
76 Soil Survey

Management

Major uses: Rangeland

For general and detailed information about managing this map unit, see the

sections “Use and Management of the Soils” and “Soil Properties.”

HawB—Hawley loamy fine sand, 0 to 3 percent slopes,

rarely flooded

Map Unit Setting

Major land resource area: 80A

Elevation range: 850 to 1,050 feet

Mean annual precipitation: 32 to 36 inches

Mean annual air temperature: 60 to 61 degrees F

Frost-free period: 200 to 210 days

Major Component Description

Hawley and similar soils

Extent of the component in the map unit: 94 percent

Geomorphic setting: Flood plain in a valley

Parent material: Coarse-loamy alluvium

Slope range: 1 to 3 percent

Runoff: Low

Soil depth: More than 60 inches

Slowest permeability class of the soil: Moderate

Slowest permeability class within a depth of 60 inches: Moderate

Drainage class: Well drained

Available water capacity: About 8.8 inches

Depth to the top of the seasonal high water table: More than 6 feet

Flooding: Rare

Ponding: None

Interpretive groups:

Land capability classification—3e

Range site number and name—080AY068OK, Sandy Bottomland

Typical profile:

Ap—0 to 10 inches; loamy fine sand

Bw1—10 to 24 inches; fine sandy loam

Bw2—24 to 38 inches; fine sandy loam

C1—38 to 49 inches; fine sandy loam

C2—49 to 80 inches; stratified loamy fine sand to silty clay loam

Location of representative profile: About 200 feet west and 1,300 feet north of the

southeast corner of sec. 17, T. 17 N., R. 1 E.

Management

Major uses: Cropland, hayland, pastureland, and rangeland

For general and detailed information about managing this map unit, see the

sections “Use and Management of the Soils” and “Soil Properties.”
Logan County, Oklahoma 77

ICGD3—Ironmound-Coyle-Grainola complex, 5 to 8

percent slopes, severely eroded

Map Unit Setting

Major land resource area: 80A

Elevation range: 900 to 1,200 feet

Mean annual precipitation: 32 to 36 inches

Mean annual air temperature: 60 to 61 degrees F

Frost-free period: 200 to 210 days

Major Component Description

Ironmound and similar soils

Extent of the component in the map unit: 40 percent

Geomorphic setting: Hill on uplands

Position on landform: Shoulder and summit

Parent material: Residuum weathered from sandstone

Slope range: 5 to 8 percent

Runoff: Very high

Depth to bedrock (paralithic): 10 to 20 inches

Slowest permeability class of the soil: Moderately rapid

Slowest permeability class within a depth of 60 inches: Impermeable

Drainage class: Well drained

Available water capacity: About 2.0 inches

Depth to the top of the seasonal high water table: More than 6 feet

Flooding: None

Ponding: None

Interpretive groups:

Land capability classification—7e

Range site number and name—080AY883OK, Reseeded Shallow Prairie

Typical profile:

Ap—0 to 5 inches; loam

Bw—5 to 12 inches; loam

Cr—12 to 20 inches; bedrock

Location of representative profile: About 1,300 feet west and 1,300 feet north of the

southeast corner of sec. 27, T. 19 N., R. 4 W.

Coyle and similar soils

Extent of the component in the map unit: 30 percent

Geomorphic setting: Hill on uplands

Position on landform: Shoulder and backslope

Parent material: Residuum weathered from sandstone

Slope range: 5 to 8 percent

Runoff: High

Depth to bedrock (paralithic): 20 to 40 inches

Slowest permeability class of the soil: Moderate

Slowest permeability class within a depth of 60 inches: Impermeable

Drainage class: Well drained

Available water capacity: About 5.5 inches

Depth to the top of the seasonal high water table: More than 6 feet

Flooding: None

Ponding: None
78 Soil Survey

Interpretive groups:

Land capability classification—6e

Range site number and name—080AY856OK, Reseeded Loamy Prairie

Typical profile:

Ap—0 to 8 inches; loam

Bt1—8 to 21 inches; clay loam

Bt2—21 to 35 inches; clay loam

Cr—35 to 40 inches; bedrock

Location of representative profile: About 1,100 feet west and 1,700 feet north of the

southeast corner of sec. 27, T. 19 N., R. 4 W.

Grainola and similar soils

Extent of the component in the map unit: 15 percent

Geomorphic setting: Hill on uplands

Position on landform: Backslope

Parent material: Residuum weathered from clayey shale

Slope range: 5 to 8 percent

Runoff: Very high

Depth to bedrock (paralithic): 20 to 40 inches

Slowest permeability class of the soil: Slow

Slowest permeability class within a depth of 60 inches: Impermeable

Drainage class: Well drained

Available water capacity: About 4.8 inches

Depth to the top of the seasonal high water table: More than 6 feet

Flooding: None

Ponding: None

Interpretive groups:

Land capability classification—6e

Range site number and name—080AY810OK, Reseeded Claypan Prairie

Typical profile:

A—0 to 4 inches; clay loam

Bt1—4 to 22 inches; clay

Bt2—22 to 34 inches; clay

Cr—34 to 40 inches; bedrock

Location of representative profile: About 1,300 feet west and 1,000 feet north of the

southeast corner of sec. 27, T. 19 N., R. 4 W.

Management

Major uses: Pastureland and rangeland

For general and detailed information about managing this map unit, see the

sections “Use and Management of the Soils” and “Soil Properties.”

IrCE—Ironmound-Coyle complex, 5 to 15 percent slopes

Map Unit Setting

Major land resource area: 80A

Elevation range: 900 to 1,200 feet

Mean annual precipitation: 32 to 36 inches

Mean annual air temperature: 60 to 61 degrees F

Frost-free period: 200 to 210 days
Logan County, Oklahoma 79

Major Component Description

Ironmound and similar soils

Extent of the component in the map unit: 53 percent

Geomorphic setting: Hill on uplands

Position on landform: Shoulder and summit

Parent material: Residuum weathered from sandstone

Slope range: 5 to 15 percent

Runoff: Very high

Depth to bedrock (paralithic): 10 to 20 inches

Slowest permeability class of the soil: Moderately rapid

Slowest permeability class within a depth of 60 inches: Impermeable

Drainage class: Well drained

Available water capacity: About 2.2 inches

Depth to the top of the seasonal high water table: More than 6 feet

Flooding: None

Ponding: None

Interpretive groups:

Land capability classification—6e

Range site number and name—080AY083OK, Shallow Prairie

Typical profile:

A—0 to 6 inches; fine sandy loam

Bw—6 to 15 inches; fine sandy loam

Cr—15 to 20 inches; bedrock

Location of representative profile: About 1,075 feet west and 675 feet north of the

southeast corner of sec. 15, T. 18 N., R. 3 W.

Coyle and similar soils

Extent of the component in the map unit: 22 percent

Geomorphic setting: Hill on uplands

Position on landform: Shoulder and backslope

Parent material: Residuum weathered from sandstone

Slope range: 8 to 12 percent

Runoff: High

Depth to bedrock (paralithic): 20 to 40 inches

Slowest permeability class of the soil: Moderate

Slowest permeability class within a depth of 60 inches: Impermeable

Drainage class: Well drained

Available water capacity: About 4.3 inches

Depth to the top of the seasonal high water table: More than 6 feet

Flooding: None

Ponding: None

Interpretive groups:

Land capability classification—6e

Range site number and name—080AY056OK, Loamy Prairie

Typical profile:

A—0 to 8 inches; loam

Bt1—8 to 16 inches; clay loam

Bt2—16 to 26 inches; clay loam

Cr—26 to 40 inches; bedrock
80 Soil Survey

Location of representative profile: About 1,175 feet west and 675 feet north of the

southeast corner of sec. 15, T. 18 N., R. 3 W.

Management

Major uses: Pastureland and rangeland

For general and detailed information about managing this map unit, see the

sections “Use and Management of the Soils” and “Soil Properties.”

IroC2—Ironmound loam, 3 to 5 percent slopes, eroded

Map Unit Setting

Major land resource area: 80A

Elevation range: 900 to 1,200 feet

Mean annual precipitation: 32 to 36 inches

Mean annual air temperature: 60 to 61 degrees F

Frost-free period: 200 to 210 days

Major Component Description

Ironmound and similar soils

Extent of the component in the map unit: 90 percent

Geomorphic setting: Hill on uplands

Position on landform: Shoulder and summit

Parent material: Residuum weathered from sandstone

Slope range: 3 to 5 percent

Runoff: Very high

Depth to bedrock (paralithic): 10 to 20 inches

Slowest permeability class of the soil: Moderate

Slowest permeability class within a depth of 60 inches: Impermeable

Drainage class: Well drained

Available water capacity: About 2.7 inches

Depth to the top of the seasonal high water table: More than 6 feet

Flooding: None

Ponding: None

Interpretive groups:

Land capability classification—3e

Range site number and name—080AY883OK, Reseeded Shallow Prairie

Typical profile:

Ap—0 to 7 inches; loam

Bw—7 to 16 inches; loam

Cr—16 to 40 inches; bedrock

Location of representative profile: About 1,300 feet north and 500 feet west of the

southeast corner of sec. 30, T. 19 N., R. 4 W.

Management

Major uses: Hayland, pastureland, and rangeland

For general and detailed information about managing this map unit, see the

sections “Use and Management of the Soils” and “Soil Properties.”
Logan County, Oklahoma 81

KgfB—Kingfisher silt loam, 1 to 3 percent slopes

Map Unit Setting

Major land resource area: 80A

Elevation range: 900 to 1,200 feet

Mean annual precipitation: 32 to 36 inches

Mean annual air temperature: 60 to 61 degrees F

Frost-free period: 200 to 210 days

Major Component Description

Kingfisher and similar soils

Extent of the component in the map unit: 90 percent

Geomorphic setting: Hill on uplands

Position on landform: Summit and shoulder

Parent material: Residuum weathered from siltstone

Slope range: 1 to 3 percent

Runoff: High

Depth to bedrock (paralithic): 20 to 40 inches

Slowest permeability class of the soil: Moderately slow

Slowest permeability class within a depth of 60 inches: Impermeable

Drainage class: Well drained

Available water capacity: About 7.1 inches

Depth to the top of the seasonal high water table: More than 6 feet

Flooding: None

Ponding: None

Interpretive groups:

Land capability classification—2e

Range site number and name—080AY056OK, Loamy Prairie

Typical profile:

Ap—0 to 10 inches; silt loam

Bt1—10 to 22 inches; silty clay loam

Bt2—22 to 32 inches; silty clay loam

BC—32 to 38 inches; silty clay loam

Cr—38 to 40 inches; bedrock

Location of representative profile: About 700 feet north and 375 feet west of the

southeast corner of sec. 24, T. 18 N., R. 4 W.

Management

Major uses: Cropland, hayland, pastureland, and rangeland

For general and detailed information about managing this map unit, see the

sections “Use and Management of the Soils” and “Soil Properties.”

KinC2—Kingfisher loam, 3 to 5 percent slopes, eroded

Map Unit Setting

Major land resource area: 80A

Elevation range: 900 to 1,200 feet

Mean annual precipitation: 32 to 36 inches
82 Soil Survey

Mean annual air temperature: 60 to 61 degrees F

Frost-free period: 200 to 210 days

Major Component Description

Kingfisher and similar soils

Extent of the component in the map unit: 90 percent

Geomorphic setting: Hill on uplands

Position on landform: Summit and shoulder

Parent material: Residuum weathered from siltstone

Slope range: 3 to 5 percent

Runoff: High

Depth to bedrock (paralithic): 20 to 40 inches

Slowest permeability class of the soil: Moderately slow

Slowest permeability class within a depth of 60 inches: Impermeable

Drainage class: Well drained

Available water capacity: About 5.0 inches

Depth to the top of the seasonal high water table: More than 6 feet

Flooding: None

Ponding: None

Interpretive groups:

Land capability classification—3e

Range site number and name—080AY856OK, Reseeded Loamy Prairie

Typical profile:

Ap—0 to 8 inches; loam

Bt1—8 to 13 inches; clay loam

Bt2—13 to 20 inches; silty clay loam

BC—20 to 27 inches; clay loam

Cr—27 to 40 inches; bedrock

Location of representative profile: About 100 feet east and 450 feet south of the

northwest corner of sec. 5, T. 19 N., R. 2 W.

Management

Major uses: Cropland, hayland, pastureland, and rangeland

For general and detailed information about managing this map unit, see the

sections “Use and Management of the Soils” and “Soil Properties.”

KonB—Konawa loamy fine sand, 0 to 3 percent slopes

Map Unit Setting

Major land resource area: 84A

Elevation range: 900 to 1,100 feet

Mean annual precipitation: 32 to 36 inches

Mean annual air temperature: 60 to 61 degrees F

Frost-free period: 200 to 210 days

Major Component Description

Konawa and similar soils

Extent of the component in the map unit: 96 percent

Geomorphic setting: Terrace on uplands

Position on landform: Summit and shoulder
Logan County, Oklahoma 83

Parent material: Fine-loamy eolian deposits derived from sandstone and shale

Slope range: 0 to 3 percent

Runoff: Low

Soil depth: More than 60 inches

Slowest permeability class of the soil: Moderate

Slowest permeability class within a depth of 60 inches: Moderate

Drainage class: Well drained

Available water capacity: About 8.6 inches

Depth to the top of the seasonal high water table: More than 6 feet

Flooding: None

Ponding: None

Interpretive groups:

Land capability classification—3e

Range site number and name—084AY076OK, Sandy Savannah (central)

Typical profile:

Ap—0 to 7 inches; loamy fine sand

E—7 to 12 inches; loamy fine sand

Bt1—12 to 25 inches; sandy clay loam

Bt2—25 to 38 inches; sandy clay loam

BC—38 to 52 inches; fine sandy loam

C—52 to 80 inches; loamy fine sand

Location of representative profile: About 2,100 feet east and 1,000 feet south of the

northwest corner of sec. 17, T. 17 N., R. 4 W.

Management

Major uses: Cropland, pastureland, and rangeland

For general and detailed information about managing this map unit, see the

sections “Use and Management of the Soils” and “Soil Properties.”

KonD2—Konawa loamy fine sand, 3 to 8 percent slopes,

eroded

Map Unit Setting

Major land resource area: 84A

Elevation range: 900 to 1,100 feet

Mean annual precipitation: 32 to 36 inches

Mean annual air temperature: 60 to 61 degrees F

Frost-free period: 200 to 210 days

Major Component Description

Konawa and similar soils

Extent of the component in the map unit: 96 percent

Geomorphic setting: Terrace on uplands (fig. 12)

Position on landform: Backslope

Parent material: Fine-loamy eolian deposits derived from sandstone and shale

Slope range: 3 to 8 percent

Runoff: Medium

Soil depth: More than 60 inches

Slowest permeability class of the soil: Moderate
84 Soil Survey

Slowest permeability class within a depth of 60 inches: Moderate

Drainage class: Well drained

Available water capacity: About 8.5 inches

Depth to the top of the seasonal high water table: More than 6 feet

Flooding: None

Ponding: None

Interpretive groups:

Land capability classification—4e

Range site number and name—084AY876OK, Reseeded Sandy Savannah

Typical profile:

A—0 to 9 inches; loamy fine sand

Bt1—9 to 23 inches; sandy clay loam

Bt2—23 to 38 inches; sandy clay loam

Bt3—38 to 49 inches; fine sandy loam

BC—49 to 70 inches; fine sandy loam

C—70 to 80 inches; fine sandy loam

Location of representative profile: About 1,400 feet west and 800 feet north of the

southeast corner of sec. 3, T. 17 N., R. 4 W.

Management

Major uses: Cropland, pastureland, and rangeland

For general and detailed information about managing this map unit, see the

sections “Use and Management of the Soils” and “Soil Properties.”

Figure 12.—Landscape of Konawa loamy fine sand, 3 to 8 percent slopes, eroded.
Logan County, Oklahoma 85

KrdA—Kirkland silt loam, 0 to 1 percent slopes

Map Unit Setting

Major land resource area: 80A

Elevation range: 900 to 1,200 feet

Mean annual precipitation: 32 to 36 inches

Mean annual air temperature: 60 to 61 degrees F

Frost-free period: 200 to 210 days

Major Component Description

Kirkland and similar soils

Extent of the component in the map unit: 90 percent

Geomorphic setting: Terrace on uplands

Position on landform: Tread

Parent material: Clayey alluvium

Slope range: 0 to 1 percent

Runoff: High

Depth to bedrock (paralithic): 60 to 99 inches

Slowest permeability class of the soil: Very slow

Slowest permeability class within a depth of 60 inches: Very slow

Drainage class: Well drained

Available water capacity: About 7.7 inches

Depth to the top of the seasonal high water table: More than 6 feet

Flooding: None

Ponding: None

Interpretive groups:

Land capability classification—2s

Range site number and name—080AY010OK, Claypan Prairie (north)

Typical profile:

Ap—0 to 8 inches; silt loam

Bt1—8 to 19 inches; silty clay

Bt2—19 to 41 inches; silty clay

2Bt1—41 to 59 inches; silty clay

2Bt2—59 to 85 inches; silty clay

2Cr—85 to 96 inches; bedrock

Location of representative profile: About 175 feet west and 2,450 feet north of the

northeast corner of sec. 6, T. 19 N., R. 4 W.

Management

Major uses: Cropland, hayland, pastureland, and rangeland

For general and detailed information about managing this map unit, see the

sections “Use and Management of the Soils” and “Soil Properties.”

KrkB—Kirkland silty clay loam, 1 to 3 percent slopes

Map Unit Setting

Major land resource area: 80A

Elevation range: 900 to 1,200 feet
86 Soil Survey

Mean annual precipitation: 32 to 36 inches

Mean annual air temperature: 60 to 61 degrees F

Frost-free period: 200 to 210 days

Major Component Description

Kirkland and similar soils

Extent of the component in the map unit: 90 percent

Geomorphic setting: Terrace on uplands

Position on landform: Tread

Parent material: Clayey alluvium

Slope range: 1 to 3 percent

Runoff: Very high

Depth to bedrock (paralithic): 60 to 99 inches

Slowest permeability class of the soil: Very slow

Slowest permeability class within a depth of 60 inches: Very slow

Drainage class: Well drained

Available water capacity: About 7.9 inches

Depth to the top of the seasonal high water table: More than 6 feet

Flooding: None

Ponding: None

Interpretive groups:

Land capability classification—3e

Range site number and name—080AY010OK, Claypan Prairie (north)

Typical profile:

Ap—0 to 9 inches; silty clay loam

Bt1—9 to 34 inches; silty clay

Bt2—34 to 48 inches; silty clay

Bt3—48 to 57 inches; silty clay

BC—57 to 82 inches; silty clay

2Cr—82 to 98 inches; bedrock

Location of representative profile: About 150 feet west and 1,000 feet north of the

southeast corner of sec. 36, T. 16 N., R. 4 W.

Management

Major uses: Cropland, hayland, pastureland, and rangeland

For general and detailed information about managing this map unit, see the

sections “Use and Management of the Soils” and “Soil Properties.”

LarA—Lawrie silt loam, 0 to 1 percent slopes,

occasionally flooded

Map Unit Setting

Major land resource area: 80A

Elevation range: 850 to 1,050 feet

Mean annual precipitation: 32 to 36 inches

Mean annual air temperature: 60 to 61 degrees F

Frost-free period: 200 to 210 days
Logan County, Oklahoma 87

Major Component Description

Lawrie and similar soils

Extent of the component in the map unit: 94 percent

Geomorphic setting: Flood plain in a valley

Parent material: Fine-silty alluvium

Slope range: 0 to 1 percent

Runoff: Negligible

Soil depth: More than 60 inches

Slowest permeability class of the soil: Moderate

Slowest permeability class within a depth of 60 inches: Moderate

Drainage class: Well drained

Available water capacity: About 11.7 inches

Depth to the top of the seasonal high water table: More than 6 feet

Flooding: Occasional

Ponding: None

Interpretive groups:

Land capability classification—1

Range site number and name—080AY050OK, Loamy Bottomland

Typical profile:

Ap—0 to 8 inches; silt loam

A—8 to 20 inches; silt loam

Bt1—20 to 27 inches; silty clay loam

Bt2—27 to 38 inches; silty clay loam

Bt3—38 to 45 inches; silty clay loam

C—45 to 80 inches; loam

Location of representative profile: About 1,700 feet south and 125 feet west of the

northeast corner of sec. 35, T. 15 N., R. 1 W.

Management

Major uses: Cropland, hayland, pastureland, and rangeland

For general and detailed information about managing this map unit, see the

sections “Use and Management of the Soils” and “Soil Properties.”

LawA—Lawrie loam, 0 to 1 percent slopes, rarely flooded

Map Unit Setting

Major land resource area: 80A

Elevation range: 850 to 1,050 feet

Mean annual precipitation: 32 to 36 inches

Mean annual air temperature: 60 to 61 degrees F

Frost-free period: 200 to 210 days

Major Component Description

Lawrie and similar soils

Extent of the component in the map unit: 86 percent

Geomorphic setting: Flood plain in a valley

Parent material: Fine-silty alluvium

Slope range: 0 to 1 percent

Runoff: Negligible
88 Soil Survey

Soil depth: More than 60 inches

Slowest permeability class of the soil: Moderate

Slowest permeability class within a depth of 60 inches: Moderate

Drainage class: Well drained

Available water capacity: About 11.6 inches

Depth to the top of the seasonal high water table: More than 6 feet

Flooding: Rare

Ponding: None

Interpretive groups:

Land capability classification—1

Range site number and name—080AY050OK, Loamy Bottomland

Typical profile:

Ap—0 to 10 inches; loam

Bt1—10 to 26 inches; silt loam

Bt2—26 to 34 inches; silty clay loam

2Bt1—34 to 51 inches; clay loam

2Bt2—51 to 72 inches; loam

2Btk—72 to 90 inches; loam

Location of representative profile: About 1,800 feet east and 700 feet south of the

northwest corner of sec. 27, T. 17 N., R. 1 W.

Management

Major uses: Cropland, hayland, pastureland, and rangeland

For general and detailed information about managing this map unit, see the

sections “Use and Management of the Soils” and “Soil Properties.”

LerA—Lebron clay, 0 to 1 percent slopes, occasionally

flooded

Map Unit Setting

Major land resource area: 80A

Elevation range: 850 to 1,050 feet

Mean annual precipitation: 32 to 36 inches

Mean annual air temperature: 60 to 61 degrees F

Frost-free period: 200 to 210 days

Major Component Description

Lebron and similar soils

Extent of the component in the map unit: 80 percent

Geomorphic setting: Flood plain in a valley

Parent material: Clayey over sandy alluvium

Slope range: 0 to 1 percent

Runoff: High

Soil depth: More than 60 inches

Slowest permeability class of the soil: Very slow

Slowest permeability class within a depth of 60 inches: Very slow

Drainage class: Very poorly drained

Available water capacity: About 7.1 inches

Seasonal high water table: At the soil surface
Logan County, Oklahoma 89

Flooding: Occasional

Ponding: Frequent

Interpretive groups:

Land capability classification—6w

Range site number and name—080AY090OK, Meadow

Typical profile:

A1—0 to 5 inches; clay

A2—5 to 14 inches; silty clay

C1—14 to 28 inches; stratified silt loam to clay

2C2—28 to 80 inches; stratified sand to loamy fine sand

Location of representative profile: About 3,800 feet east and 1,200 feet south of the

northwest corner of sec. 9, T. 17 N., R. 2 W.

Management

Major uses: Hayland, pastureland, and rangeland

For general and detailed information about managing this map unit, see the

sections “Use and Management of the Soils” and “Soil Properties.”

LitB—Littleaxe fine sandy loam, 1 to 3 percent slopes

Map Unit Setting

Major land resource area: 84A

Elevation range: 900 to 1,200 feet

Mean annual precipitation: 32 to 36 inches

Mean annual air temperature: 60 to 61 degrees F

Frost-free period: 200 to 210 days

Major Component Description

Littleaxe and similar soils

Extent of the component in the map unit: 80 percent

Geomorphic setting: Hill on uplands

Position on landform: Summit

Parent material: Fine-loamy residuum weathered from sandstone and shale

Slope range: 1 to 3 percent

Runoff: Low

Depth to bedrock (paralithic): 40 to 60 inches

Slowest permeability class of the soil: Moderate

Slowest permeability class within a depth of 60 inches: Moderately slow

Drainage class: Well drained

Available water capacity: About 7.9 inches

Depth to the top of the seasonal high water table: More than 6 feet

Flooding: None

Ponding: None

Interpretive groups:

Land capability classification—2e

Range site number and name—084AY076OK, Sandy Savannah (central)

Typical profile:

A—0 to 5 inches; fine sandy loam

E—5 to 9 inches; fine sandy loam
90 Soil Survey

Bt1—9 to 30 inches; sandy clay loam

Bt2—30 to 45 inches; sandy clay loam

BC—45 to 58 inches; fine sandy loam

Cr—58 to 60 inches; bedrock

Location of representative profile: About 1,950 feet north and 300 feet east of the

southwest corner of sec. 13, T. 15 N., R. 1 W.

Management

Major uses: Cropland, hayland, pastureland, and rangeland

For general and detailed information about managing this map unit, see the

sections “Use and Management of the Soils” and “Soil Properties.”

LitC2—Littleaxe fine sandy loam, 3 to 5 percent slopes,

eroded

Map Unit Setting

Major land resource area: 84A

Elevation range: 900 to 1,200 feet

Mean annual precipitation: 32 to 36 inches

Mean annual air temperature: 60 to 61 degrees F

Frost-free period: 200 to 210 days

Major Component Description

Littleaxe and similar soils

Extent of the component in the map unit: 80 percent

Geomorphic setting: Hill on uplands

Position on landform: Shoulder

Parent material: Fine-loamy residuum weathered from sandstone and shale

Slope range: 3 to 5 percent

Runoff: Low

Depth to bedrock (paralithic): 40 to 60 inches

Slowest permeability class of the soil: Moderate

Slowest permeability class within a depth of 60 inches: Moderately slow

Drainage class: Well drained

Available water capacity: About 7.2 inches

Depth to the top of the seasonal high water table: More than 6 feet

Flooding: None

Ponding: None

Interpretive groups:

Land capability classification—3e

Range site number and name—084AY876OK, Reseeded Sandy Savannah

Typical profile:

Ap—0 to 6 inches; fine sandy loam

Bt1—6 to 17 inches; sandy clay loam

Bt2—17 to 41 inches; sandy clay loam

Bt3—41 to 52 inches; sandy clay loam

Cr—52 to 60 inches; bedrock

Location of representative profile: About 1,450 feet south and 1,150 feet east of the

northwest corner of sec. 35, T. 17 N., R. 1 E.
Logan County, Oklahoma 91

Management

Major uses: Cropland, hayland, pastureland, and rangeland

For general and detailed information about managing this map unit, see the

sections “Use and Management of the Soils” and “Soil Properties.”

M-W—Miscellaneous water

Map Unit Setting

Major land resource area: 80A

Elevation range: 850 to 1,200 feet

Mean annual precipitation: 32 to 36 inches

Mean annual air temperature: 60 to 61 degrees F

Frost-free period: 200 to 210 days

Major Component Description

Miscellaneous water

Extent of the component in the map unit: 100 percent

Interpretive groups:

Land capability classification—none assigned

Range site number and name—none assigned

Definition:

This map unit consists of areas of wastewater, such as sewage lagoons and

industrial wastewater.

Location of a representative area: About 2,640 feet east and 2,640 feet south of the

northwest corner of sec. 11, T. 17 N., R. 2 W.

Management

For general and detailed information about managing this map unit, see the

sections “Use and Management of the Soils” and “Soil Properties.”

MaID—Masham-Ironmound complex, 5 to 15 percent

slopes

Map Unit Setting

Major land resource area: 80A

Elevation range: 900 to 1,200 feet

Mean annual precipitation: 32 to 36 inches

Mean annual air temperature: 60 to 61 degrees F

Frost-free period: 200 to 210 days

Major Component Description

Masham and similar soils

Extent of the component in the map unit: 52 percent

Geomorphic setting: Hill on uplands

Position on landform: Backslope

Parent material: Clayey residuum weathered from clayey shale

Slope range: 5 to 15 percent
92 Soil Survey

Runoff: Very high

Depth to bedrock (paralithic): 10 to 20 inches

Slowest permeability class of the soil: Slow

Slowest permeability class within a depth of 60 inches: Impermeable

Drainage class: Well drained

Available water capacity: About 2.7 inches

Depth to the top of the seasonal high water table: More than 6 feet

Flooding: None

Ponding: None

Interpretive groups:

Land capability classification—6e

Range site number and name—080AY080OK, Shallow Clay Prairie

Typical profile:

A—0 to 4 inches; silty clay loam

Bw—4 to 16 inches; silty clay

Cr—16 to 35 inches; bedrock

Location of representative profile: About 2,500 feet south and 1,850 feet west of the

northeast corner of sec. 22, T. 15 N., R. 1 W.

Ironmound and similar soils

Extent of the component in the map unit: 27 percent

Geomorphic setting: Hill on uplands

Position on landform: Shoulder and backslope

Parent material: Loamy residuum weathered from sandstone

Slope range: 5 to 15 percent

Runoff: Very high

Depth to bedrock (paralithic): 10 to 20 inches

Slowest permeability class of the soil: Moderate

Slowest permeability class within a depth of 60 inches: Impermeable

Drainage class: Well drained

Available water capacity: About 1.9 inches

Depth to the top of the seasonal high water table: More than 6 feet

Flooding: None

Ponding: None

Interpretive groups:

Land capability classification—6e

Range site number and name—080AY083OK, Shallow Prairie

Typical profile:

A—0 to 6 inches; loam

Bw—6 to 11 inches; loam

Cr—11 to 36 inches; bedrock

Location of representative profile: About 2,150 feet west and 2,150 feet south of the

northeast corner of sec. 22, T. 15 N., R. 1 W.

Management

Major uses: Rangeland (fig. 13)

For general and detailed information about managing this map unit, see the

sections “Use and Management of the Soils” and “Soil Properties.”
Logan County, Oklahoma 93

MaIG—Masham-Ironmound complex, 15 to 40 percent

slopes

Map Unit Setting

Major land resource area: 80A

Elevation range: 900 to 1,200 feet

Mean annual precipitation: 32 to 36 inches

Mean annual air temperature: 60 to 61 degrees F

Frost-free period: 200 to 210 days

Major Component Description

Masham and similar soils

Extent of the component in the map unit: 73 percent

Geomorphic setting: Hill on uplands

Position on landform: Backslope

Parent material: Clayey residuum weathered from clayey shale

Slope range: 20 to 40 percent

Runoff: Very high

Depth to bedrock (paralithic): 10 to 20 inches

Slowest permeability class of the soil: Slow

Slowest permeability class within a depth of 60 inches: Impermeable

Drainage class: Well drained

Available water capacity: About 2.0 inches

Depth to the top of the seasonal high water table: More than 6 feet

Figure 13.—An area of native prairie on Masham-Ironmound complex, 5 to 15 percent slopes,

below an area of Stephenville-Darsil-Newalla complex, 3 to 8 percent slopes, with post oakblackjack oak tree cover.
94 Soil Survey

Flooding: None

Ponding: None

Interpretive groups:

Land capability classification—7e

Range site number and name—080AY080OK, Shallow Clay Prairie

Typical profile:

A—0 to 4 inches; clay loam

Bw—4 to 12 inches; clay

Cr—12 to 20 inches; bedrock

Location of representative profile: About 100 feet south and 800 feet east of the

northwest corner of sec. 36, T. 15 N., R. 1 W.

Ironmound and similar soils

Extent of the component in the map unit: 17 percent

Geomorphic setting: Hill on uplands

Position on landform: Shoulder and backslope

Parent material: Loamy residuum weathered from sandstone

Slope range: 15 to 30 percent

Runoff: Very high

Depth to bedrock (paralithic): 10 to 20 inches

Slowest permeability class of the soil: Moderate

Slowest permeability class within a depth of 60 inches: Impermeable

Drainage class: Well drained

Available water capacity: About 2.5 inches

Depth to the top of the seasonal high water table: More than 6 feet

Flooding: None

Ponding: None

Interpretive groups:

Land capability classification—7e

Range site number and name—080AY083OK, Shallow Prairie

Typical profile:

A—0 to 6 inches; loam

Bw—6 to 15 inches; loam

Cr—15 to 20 inches; bedrock

Location of representative profile: About 100 feet south and 800 feet east of the

northwest corner of sec. 36, T. 15 N., R. 1 W.

Management

Major uses: Rangeland

For general and detailed information about managing this map unit, see the

sections “Use and Management of the Soils” and “Soil Properties.”

MinB—Minco very fine sandy loam, 1 to 3 percent slopes

Map Unit Setting

Major land resource area: 80A

Elevation range: 900 to 1,100 feet

Mean annual precipitation: 32 to 36 inches
Logan County, Oklahoma 95

Mean annual air temperature: 60 to 61 degrees F

Frost-free period: 200 to 210 days

Major Component Description

Minco and similar soils

Extent of the component in the map unit: 91 percent

Geomorphic setting: Stream terrace in a valley

Position on landform: Tread

Parent material: Coarse-silty eolian deposits

Slope range: 1 to 3 percent

Runoff: Low

Soil depth: More than 60 inches

Slowest permeability class of the soil: Moderate

Slowest permeability class within a depth of 60 inches: Moderate

Drainage class: Well drained

Available water capacity: About 11.2 inches

Depth to the top of the seasonal high water table: More than 6 feet

Flooding: None

Ponding: None

Interpretive groups:

Land capability classification—2e

Range site number and name—080AY056OK, Loamy Prairie

Typical profile:

Ap—0 to 11 inches; very fine sandy loam

Bw1—11 to 26 inches; very fine sandy loam

Bw2—26 to 37 inches; very fine sandy loam

Bw3—37 to 58 inches; very fine sandy loam

C—58 to 80 inches; very fine sandy loam

Location of representative profile: About 2,250 feet west and 725 feet north of the

southeast corner of sec. 5, T. 16 N., R. 3 W.

Management

Major uses: Cropland, hayland, pastureland, and rangeland

For general and detailed information about managing this map unit, see the

sections “Use and Management of the Soils” and “Soil Properties.”

MinC—Minco very fine sandy loam, 3 to 5 percent slopes

Map Unit Setting

Major land resource area: 80A

Elevation range: 900 to 1,100 feet

Mean annual precipitation: 32 to 36 inches

Mean annual air temperature: 60 to 61 degrees F

Frost-free period: 200 to 210 days

Major Component Description

Minco and similar soils

Extent of the component in the map unit: 91 percent

Geomorphic setting: Stream terrace in a valley

Position on landform: Riser
96 Soil Survey

Parent material: Coarse-silty eolian deposits

Slope range: 3 to 5 percent

Runoff: Low

Soil depth: More than 60 inches

Slowest permeability class of the soil: Moderate

Slowest permeability class within a depth of 60 inches: Moderate

Drainage class: Well drained

Available water capacity: About 11.2 inches

Depth to the top of the seasonal high water table: More than 6 feet

Flooding: None

Ponding: None

Interpretive groups:

Land capability classification—3e

Range site number and name—080AY056OK, Loamy Prairie

Typical profile:

A—0 to 10 inches; very fine sandy loam

Bw1—10 to 29 inches; very fine sandy loam

Bw2—29 to 40 inches; very fine sandy loam

Bw3—40 to 54 inches; very fine sandy loam

C—54 to 80 inches; very fine sandy loam

Location of representative profile: About 1,200 feet south and 2,500 feet west of the

northeast corner of sec. 9, T. 16 N., R. 4 W.

Management

Major uses: Cropland, hayland, pastureland, and rangeland

For general and detailed information about managing this map unit, see the

sections “Use and Management of the Soils” and “Soil Properties.”

MinD—Minco very fine sandy loam, 5 to 8 percent slopes

Map Unit Setting

Major land resource area: 80A

Elevation range: 900 to 1,100 feet

Mean annual precipitation: 32 to 36 inches

Mean annual air temperature: 60 to 61 degrees F

Frost-free period: 200 to 210 days

Major Component Description

Minco and similar soils

Extent of the component in the map unit: 91 percent

Geomorphic setting: Stream terrace in a valley

Position on landform: Riser

Parent material: Coarse-silty eolian deposits

Slope range: 5 to 8 percent

Runoff: Medium

Soil depth: More than 60 inches

Slowest permeability class of the soil: Moderate

Slowest permeability class within a depth of 60 inches: Moderate

Drainage class: Well drained

Available water capacity: About 11.2 inches
Logan County, Oklahoma 97

Depth to the top of the seasonal high water table: More than 6 feet

Flooding: None

Ponding: None

Interpretive groups:

Land capability classification—4e

Range site number and name—080AY056OK, Loamy Prairie

Typical profile:

A—0 to 12 inches; very fine sandy loam

Bw1—12 to 26 inches; very fine sandy loam

Bw2—26 to 47 inches; very fine sandy loam

Bw3—47 to 67 inches; very fine sandy loam

C—67 to 80 inches; very fine sandy loam

Location of representative profile: About 2,575 feet south and 1,175 feet west of the

northeast corner of sec. 9, T. 16 N., R. 4 W.

Management

Major uses: Cropland, hayland, pastureland, and rangeland

For general and detailed information about managing this map unit, see the

sections “Use and Management of the Soils” and “Soil Properties.”

MinF—Minco very fine sandy loam, 8 to 20 percent slopes

Map Unit Setting

Major land resource area: 80A

Elevation range: 900 to 1,100 feet

Mean annual precipitation: 32 to 36 inches

Mean annual air temperature: 60 to 61 degrees F

Frost-free period: 200 to 210 days

Major Component Description

Minco and similar soils

Extent of the component in the map unit: 91 percent

Geomorphic setting: Stream terrace in a valley

Position on landform: Riser

Parent material: Coarse-silty eolian deposits

Slope range: 8 to 20 percent

Runoff: Medium

Soil depth: More than 60 inches

Slowest permeability class of the soil: Moderate

Slowest permeability class within a depth of 60 inches: Moderate

Drainage class: Well drained

Available water capacity: About 11.2 inches

Depth to the top of the seasonal high water table: More than 6 feet

Flooding: None

Ponding: None

Interpretive groups:

Land capability classification—6e

Range site number and name—080AY056OK, Loamy Prairie
98 Soil Survey

Typical profile:

A1—0 to 9 inches; very fine sandy loam

A2—9 to 19 inches; very fine sandy loam

Bw1—19 to 39 inches; very fine sandy loam

Bw2—39 to 64 inches; very fine sandy loam

Bw3—64 to 70 inches; very fine sandy loam

C—70 to 80 inches; very fine sandy loam

Location of representative profile: About 3,000 feet south and 375 feet east of the

northwest corner of sec. 34, T. 18 N., R. 2 W.

Management

Major uses: Rangeland

For general and detailed information about managing this map unit, see the

sections “Use and Management of the Soils” and “Soil Properties.”

MllA—Miller silty clay, 0 to 1 percent slopes, occasionally

flooded

Map Unit Setting

Major land resource area: 80A

Elevation range: 850 to 1,050 feet

Mean annual precipitation: 32 to 36 inches

Mean annual air temperature: 60 to 61 degrees F

Frost-free period: 200 to 210 days

Major Component Description

Miller and similar soils

Extent of the component in the map unit: 95 percent

Geomorphic setting: Flood plain in a valley

Parent material: Clayey alluvium

Slope range: 0 to 1 percent

Runoff: High

Soil depth: More than 60 inches

Slowest permeability class of the soil: Very slow

Slowest permeability class within a depth of 60 inches: Very slow

Drainage class: Moderately well drained

Available water capacity: About 9.4 inches

Depth to the top of the seasonal high water table: More than 6 feet

Flooding: Occasional

Ponding: None

Interpretive groups:

Land capability classification—3w

Range site number and name—080AY045OK, Heavy Bottomland

Typical profile:

Ap—0 to 9 inches; silty clay

Bw1—9 to 15 inches; silty clay

Bw2—15 to 27 inches; silty clay

Bw3—27 to 41 inches; silty clay

Bw4—41 to 55 inches; silty clay

C—55 to 80 inches; silty clay
Logan County, Oklahoma 99

Location of representative profile: About 2,500 feet north and 375 feet west of the

southeast corner of sec. 7, T. 18 N., R. 3 W.

Management

Major uses: Cropland, hayland, pastureland, and rangeland

For general and detailed information about managing this map unit, see the

sections “Use and Management of the Soils” and “Soil Properties.”

MulC—Mulhall loam, 3 to 5 percent slopes

Map Unit Setting

Major land resource area: 80A

Elevation range: 900 to 1,200 feet

Mean annual precipitation: 32 to 36 inches

Mean annual air temperature: 60 to 61 degrees F

Frost-free period: 200 to 210 days

Major Component Description

Mulhall and similar soils

Extent of the component in the map unit: 88 percent

Geomorphic setting: Hill on uplands

Position on landform: Footslope

Parent material: Fine-loamy colluvium derived from sandstone and shale

Slope range: 3 to 5 percent

Runoff: Low

Depth to bedrock (paralithic): 60 to 80 inches

Slowest permeability class of the soil: Moderate

Slowest permeability class within a depth of 60 inches: Moderate

Drainage class: Well drained

Available water capacity: About 9.4 inches

Depth to the top of the seasonal high water table: More than 6 feet

Flooding: None

Ponding: None

Interpretive groups:

Land capability classification—3e

Range site number and name—080AY056OK, Loamy Prairie

Typical profile:

Ap—0 to 11 inches; loam

BA—11 to 17 inches; loam

Bt1—17 to 32 inches; sandy clay loam

Bt2—32 to 40 inches; sandy clay loam

Bt3—40 to 70 inches; sandy clay loam

2Cr—70 to 82 inches; bedrock

Location of representative profile: About 1,250 feet north and 800 feet west of the

southeast corner of sec. 5, T. 19 N., R. 2 W.

Management

Major uses: Cropland, hayland, pastureland (fig. 14), and rangeland

For general and detailed information about managing this map unit, see the

sections “Use and Management of the Soils” and “Soil Properties.”
100 Soil Survey

MulC2—Mulhall loam, 3 to 5 percent slopes, eroded

Map Unit Setting

Major land resource area: 80A

Elevation range: 900 to 1,200 feet

Mean annual precipitation: 32 to 36 inches

Mean annual air temperature: 60 to 61 degrees F

Frost-free period: 200 to 210 days

Major Component Description

Mulhall and similar soils

Extent of the component in the map unit: 88 percent

Geomorphic setting: Hill on uplands

Position on landform: Footslope

Parent material: Fine-loamy colluvium derived from sandstone and shale

Slope range: 3 to 5 percent

Runoff: Low

Depth to bedrock (paralithic): 60 to 80 inches

Slowest permeability class of the soil: Moderate

Slowest permeability class within a depth of 60 inches: Moderate

Drainage class: Well drained

Available water capacity: About 9.2 inches

Depth to the top of the seasonal high water table: More than 6 feet

Flooding: None

Ponding: None

Interpretive groups:

Land capability classification—3e

Range site number and name—080AY856OK, Reseeded Loamy Prairie

Figure 14.—Native pasture on Mulhall loam, 3 to 5 percent slopes.
Logan County, Oklahoma 101

Typical profile:

Ap—0 to 10 inches; loam

Bt1—10 to 22 inches; sandy clay loam

Bt2—22 to 36 inches; sandy clay loam

Bt3—36 to 54 inches; sandy clay loam

Bt4—54 to 80 inches; sandy clay loam

2Cr—80 to 90 inches; bedrock

Location of representative profile: About 1,000 feet west and 100 feet north of the

southeast corner of sec. 18, T. 18 N., R. 2 W.

Management

Major uses: Cropland, hayland, pastureland, and rangeland

For general and detailed information about managing this map unit, see the

sections “Use and Management of the Soils” and “Soil Properties.”

NavA—Navina fine sandy loam, 0 to 1 percent slopes

Map Unit Setting

Major land resource area: 80A

Elevation range: 900 to 1,200 feet

Mean annual precipitation: 32 to 36 inches

Mean annual air temperature: 60 to 61 degrees F

Frost-free period: 200 to 210 days

Major Component Description

Navina and similar soils

Extent of the component in the map unit: 96 percent

Geomorphic setting: Terrace on uplands

Position on landform: Tread

Parent material: Fine-loamy alluvium

Slope range: 0 to 1 percent

Runoff: Negligible

Soil depth: More than 60 inches

Slowest permeability class of the soil: Moderate

Slowest permeability class within a depth of 60 inches: Moderate

Drainage class: Well drained

Available water capacity: About 9.7 inches

Depth to the top of the seasonal high water table: More than 6 feet

Flooding: None

Ponding: None

Interpretive groups:

Land capability classification—1

Range site number and name—080AY073OK, Sandy Prairie

Typical profile:

Ap—0 to 8 inches; fine sandy loam

BA—8 to 14 inches; fine sandy loam

Bt1—14 to 33 inches; sandy clay loam

Bt2—33 to 41 inches; sandy clay loam

BC—41 to 71 inches; fine sandy loam

C—71 to 80 inches; fine sandy loam
102 Soil Survey

Location of representative profile: About 1,800 feet north and 325 feet west of the

southeast corner of sec. 9, T. 17 N., R. 4 W.

Management

Major uses: Cropland, hayland, pastureland, and rangeland

For general and detailed information about managing this map unit, see the

sections “Use and Management of the Soils” and “Soil Properties.”

NavB—Navina fine sandy loam, 1 to 3 percent slopes

Map Unit Setting

Major land resource area: 80A

Elevation range: 900 to 1,200 feet

Mean annual precipitation: 32 to 36 inches

Mean annual air temperature: 60 to 61 degrees F

Frost-free period: 200 to 210 days

Major Component Description

Navina and similar soils

Extent of the component in the map unit: 96 percent

Geomorphic setting: Terrace on uplands

Position on landform: Tread

Parent material: Fine-loamy alluvium

Slope range: 1 to 3 percent

Runoff: Low

Soil depth: More than 60 inches

Slowest permeability class of the soil: Moderate

Slowest permeability class within a depth of 60 inches: Moderate

Drainage class: Well drained

Available water capacity: About 9.9 inches

Depth to the top of the seasonal high water table: More than 6 feet

Flooding: None

Ponding: None

Interpretive groups:

Land capability classification—2e

Range site number and name—080AY073OK, Sandy Prairie

Typical profile:

Ap—0 to 7 inches; fine sandy loam

BA—7 to 16 inches; fine sandy loam

Bt1—16 to 37 inches; sandy clay loam

Bt2—37 to 60 inches; fine sandy loam

BC—60 to 71 inches; fine sandy loam

C—71 to 80 inches; fine sandy loam

Location of representative profile: About 150 feet east and 225 feet north of the

southwest corner of sec. 33, T. 18 N., R. 4 W.

Management

Major uses: Cropland, hayland, pastureland, and rangeland

For general and detailed information about managing this map unit, see the

sections “Use and Management of the Soils” and “Soil Properties.”
Logan County, Oklahoma 103

NeGD4—Newalla-Gullied land complex, 3 to 8 percent

slopes

Map Unit Setting

Major land resource area: 84A

Elevation range: 900 to 1,200 feet

Mean annual precipitation: 32 to 36 inches

Mean annual air temperature: 60 to 61 degrees F

Frost-free period: 200 to 210 days

Major Component Description

Newalla and similar soils

Extent of the component in the map unit: 75 percent

Geomorphic setting: Hill on uplands

Position on landform: Backslope

Parent material: Fine-loamy residuum weathered from sandstone over clayey

residuum weathered from clayey shale

Slope range: 3 to 8 percent

Runoff: Very high

Depth to bedrock (paralithic): 40 to 60 inches

Slowest permeability class of the soil: Very slow

Slowest permeability class within a depth of 60 inches: Very slow

Drainage class: Moderately well drained

Available water capacity: About 6.3 inches

Depth to the top of the seasonal high water table: More than 6 feet

Flooding: None

Ponding: None

Interpretive groups:

Land capability classification—3e

Range site number and name—084AY876OK, Reseeded Sandy Savannah

Typical profile:

Ap—0 to 6 inches; fine sandy loam

Bt—6 to 11 inches; sandy clay loam

2Bt—11 to 28 inches; clay

2BCk—28 to 46 inches; clay

2Cr—46 to 60 inches; bedrock

Location of representative profile: About 1,150 feet east and 2,400 feet south of the

northwest corner of sec. 34, T. 16 N., R. 1 W.

Gullied land

Extent of the component in the map unit: 15 percent

Geomorphic setting: Hill on uplands

Position on landform: Shoulder and backslope

Parent material: Sandstone and shale

Slope range: 3 to 8 percent

Runoff: Very high

Interpretive groups:

Land capability classification—8e

Range site number and name—none assigned
104 Soil Survey

Definition:

Gullied land consists of deep uncrossable gullies that have cut into the clayey

subsoil of the Newalla soil. Unweathered shale and sandstone bedrock is exposed in

the bottom of the gullies.

Location of a representative area: About 1,150 feet east and 2,450 feet south of the

northwest corner of sec. 35, T. 16 N., R. 1 W.

Management

Major uses: Rangeland

For general and detailed information about managing this map unit, see the

sections “Use and Management of the Soils” and “Soil Properties.”

NewB—Newalla fine sandy loam, 1 to 3 percent slopes

Map Unit Setting

Major land resource area: 84A

Elevation range: 900 to 1,200 feet

Mean annual precipitation: 32 to 36 inches

Mean annual air temperature: 60 to 61 degrees F

Frost-free period: 200 to 210 days

Major Component Description

Newalla and similar soils

Extent of the component in the map unit: 90 percent

Geomorphic setting: Hill on uplands

Position on landform: Shoulder and backslope

Parent material: Fine-loamy residuum weathered from sandstone over clayey

residuum weathered from clayey shale

Slope range: 1 to 3 percent

Runoff: Very high

Depth to bedrock (paralithic): 40 to 60 inches

Slowest permeability class of the soil: Very slow

Slowest permeability class within a depth of 60 inches: Very slow

Drainage class: Moderately well drained

Available water capacity: About 7.0 inches

Depth to the top of the seasonal high water table: More than 6 feet

Flooding: None

Ponding: None

Interpretive groups:

Land capability classification—3s

Range site number and name—084AY076OK, Sandy Savannah (central)

Typical profile:

Ap—0 to 6 inches; fine sandy loam

E—6 to 12 inches; fine sandy loam

Bt—12 to 19 inches; sandy clay loam

2Bt—19 to 41 inches; clay

2BCk—41 to 46 inches; clay

2Cr—46 to 52 inches; bedrock

Location of representative profile: About 1,700 feet west and 250 feet north of the

southeast corner of sec. 16, T. 15 N., R. 1 W.
Logan County, Oklahoma 105

Management

Major uses: Cropland, hayland, pastureland, and rangeland

For general and detailed information about managing this map unit, see the

sections “Use and Management of the Soils” and “Soil Properties.”

NorA—Norge silt loam, 0 to 1 percent slopes

Map Unit Setting

Major land resource area: 80A

Elevation range: 900 to 1,200 feet

Mean annual precipitation: 32 to 36 inches

Mean annual air temperature: 60 to 61 degrees F

Frost-free period: 200 to 210 days

Major Component Description

Norge and similar soils

Extent of the component in the map unit: 93 percent

Geomorphic setting: Terrace on uplands

Position on landform: Tread

Parent material: Fine-silty alluvium

Slope range: 0 to 1 percent

Runoff: Low

Soil depth: More than 60 inches

Slowest permeability class of the soil: Moderately slow

Slowest permeability class within a depth of 60 inches: Moderately slow

Drainage class: Well drained

Available water capacity: About 11.4 inches

Depth to the top of the seasonal high water table: More than 6 feet

Flooding: None

Ponding: None

Interpretive groups:

Land capability classification—1

Range site number and name—080AY056OK, Loamy Prairie

Typical profile:

Ap—0 to 11 inches; silt loam

A—11 to 16 inches; silt loam

BA—16 to 23 inches; silt loam

Bt1—23 to 43 inches; silty clay loam

Bt2—43 to 61 inches; silty clay loam

Bt3—61 to 80 inches; silty clay loam

Location of representative profile: About 1,100 feet east and 400 feet south of the

northwest corner of sec. 4, T. 17 N., R. 1 W.

Management

Major uses: Cropland, hayland, pastureland, and rangeland

For general and detailed information about managing this map unit, see the

sections “Use and Management of the Soils” and “Soil Properties.”
106 Soil Survey

NorB—Norge silt loam, 1 to 3 percent slopes

Map Unit Setting

Major land resource area: 80A

Elevation range: 900 to 1,200 feet

Mean annual precipitation: 32 to 36 inches

Mean annual air temperature: 60 to 61 degrees F

Frost-free period: 200 to 210 days

Major Component Description

Norge and similar soils

Extent of the component in the map unit: 90 percent

Geomorphic setting: Terrace on uplands

Position on landform: Tread

Parent material: Fine-silty alluvium

Slope range: 1 to 3 percent

Runoff: Medium

Soil depth: More than 60 inches

Slowest permeability class of the soil: Moderately slow

Slowest permeability class within a depth of 60 inches: Moderately slow

Drainage class: Well drained

Available water capacity: About 11.4 inches

Depth to the top of the seasonal high water table: More than 6 feet

Flooding: None

Ponding: None

Interpretive groups:

Land capability classification—2e

Range site number and name—080AY056OK, Loamy Prairie

Typical profile:

Ap—0 to 12 inches; silt loam

BA—12 to 18 inches; silt loam

Bt1—18 to 24 inches; silty clay loam

Bt2—24 to 45 inches; silty clay loam

Bt3—45 to 62 inches; silty clay loam

BC—62 to 80 inches; silty clay loam

Location of representative profile: About 100 feet west and 750 feet south of the

northeast corner of sec. 28, T. 19 N., R. 4 W.

Management

Major uses: Cropland, hayland, pastureland, and rangeland

For general and detailed information about managing this map unit, see the

sections “Use and Management of the Soils” and “Soil Properties.”

NorC2—Norge silt loam, 3 to 5 percent slopes, eroded

Map Unit Setting

Major land resource area: 80A

Elevation range: 900 to 1,200 feet

Mean annual precipitation: 32 to 36 inches
Logan County, Oklahoma 107

Mean annual air temperature: 60 to 61 degrees F

Frost-free period: 200 to 210 days

Major Component Description

Norge and similar soils

Extent of the component in the map unit: 88 percent

Geomorphic setting: Terrace on uplands

Position on landform: Tread

Parent material: Fine-silty alluvium

Slope range: 3 to 5 percent

Runoff: Medium

Soil depth: More than 60 inches

Slowest permeability class of the soil: Moderately slow

Slowest permeability class within a depth of 60 inches: Moderately slow

Drainage class: Well drained

Available water capacity: About 11.3 inches

Depth to the top of the seasonal high water table: More than 6 feet

Flooding: None

Ponding: None

Interpretive groups:

Land capability classification—3e

Range site number and name—080AY856OK, Reseeded Loamy Prairie

Typical profile:

Ap—0 to 8 inches; silt loam

Bt1—8 to 15 inches; silty clay loam

Bt2—15 to 33 inches; silty clay loam

Bt3—33 to 43 inches; silty clay loam

Bt4—43 to 65 inches; silty clay loam

C—65 to 80 inches; clay loam

Location of representative profile: About 450 feet west and 550 feet south of the

northeast corner of sec. 28, T. 19 N., R. 4 W.

Management

Major uses: Cropland, hayland, pastureland, and rangeland

For general and detailed information about managing this map unit, see the

sections “Use and Management of the Soils” and “Soil Properties.”

OWHD—Oil waste land-Huska complex, 1 to 8 percent

slopes

Map Unit Setting

Major land resource area: 80A

Elevation range: 900 to 1,200 feet

Mean annual precipitation: 32 to 36 inches

Mean annual air temperature: 60 to 61 degrees F

Frost-free period: 200 to 210 days
108 Soil Survey

Major Component Description

Oil waste land

Extent of the component in the map unit: 50 percent

Geomorphic setting: Hill on uplands

Position on landform: Summit and backslope

Parent material: Clayey residuum weathered from clayey shale

Slope range: 1 to 8 percent

Runoff: Very high

Salt affected: Saline within a depth of 30 inches

Sodium affected: Sodic within a depth of 30 inches

Interpretive groups:

Land capability classification—8s

Range site number and name—none assigned

Description:

Oil waste land consists of areas of soil that have been damaged by the

accumulation of brine and oily waste. The soil has been denuded of vegetation, and

very severe erosion has resulted. Many areas are eroded to bedrock.

Location of a representative area: About 700 feet north and 100 feet west of the

southeast corner of sec. 18, T. 19 N., R. 4 W.

Huska and similar soils

Extent of the component in the map unit: 30 percent

Geomorphic setting: Hill on uplands

Position on landform: Backslope

Parent material: Clayey residuum weathered from clayey shale

Slope range: 1 to 3 percent

Runoff: Very high

Depth to bedrock (paralithic): 40 to 60 inches

Slowest permeability class of the soil: Very slow

Slowest permeability class within a depth of 60 inches: Impermeable

Drainage class: Moderately well drained

Available water capacity: About 5.3 inches

Depth to the top of the seasonal high water table: More than 6 feet

Flooding: None

Ponding: None

Salt affected: Saline within a depth of 30 inches

Sodium affected: Sodic within a depth of 30 inches

Interpretive groups:

Land capability classification—4s

Range site number and name—080AY091OK, Slickspot

Typical profile:

Ap—0 to 8 inches; silt loam

Btn—8 to 19 inches; silty clay

Btk1—19 to 40 inches; silty clay

Btk2—40 to 51 inches; silty clay loam

BC—51 to 59 inches; silty clay loam

Cr—59 to 80 inches; bedrock

Location of representative profile: About 600 feet north and 200 feet west of the

southeast corner of sec. 18, T. 19 N., R. 4 W.
Logan County, Oklahoma 109

Management

Major uses: Rangeland

For general and detailed information about managing this map unit, see the

sections “Use and Management of the Soils” and “Soil Properties.”

PieB—Piedmont silty clay loam, 1 to 3 percent slopes

Map Unit Setting

Major land resource area: 80A

Elevation range: 900 to 1,200 feet

Mean annual precipitation: 32 to 36 inches

Mean annual air temperature: 60 to 61 degrees F

Frost-free period: 200 to 210 days

Major Component Description

Piedmont and similar soils

Extent of the component in the map unit: 92 percent

Geomorphic setting: Hill on uplands

Position on landform: Summit and backslope

Parent material: Clayey residuum weathered from clayey shale

Slope range: 1 to 3 percent

Runoff: Very high

Depth to bedrock (paralithic): 20 to 40 inches

Slowest permeability class of the soil: Very slow

Slowest permeability class within a depth of 60 inches: Impermeable

Drainage class: Well drained

Available water capacity: About 5.3 inches

Depth to the top of the seasonal high water table: More than 6 feet

Flooding: None

Ponding: None

Interpretive groups:

Land capability classification—2e

Range site number and name—080AY010OK, Claypan Prairie (north)

Typical profile:

A—0 to 8 inches; silty clay loam

Btss1—8 to 17 inches; silty clay

Btss2—17 to 27 inches; silty clay

BCk—27 to 32 inches; silty clay loam

Cr—32 to 40 inches; bedrock

Location of representative profile: About 200 feet east and 150 feet south of the

northwest corner of sec. 18, T. 18 N., R. 4 W.

Management

Major uses: Cropland, hayland, pastureland, and rangeland

For general and detailed information about managing this map unit, see the

sections “Use and Management of the Soils” and “Soil Properties.”
110 Soil Survey

PieC2—Piedmont silty clay loam, 3 to 5 percent slopes,

eroded

Map Unit Setting

Major land resource area: 80A

Elevation range: 900 to 1,200 feet

Mean annual precipitation: 32 to 36 inches

Mean annual air temperature: 60 to 61 degrees F

Frost-free period: 200 to 210 days

Major Component Description

Piedmont and similar soils

Extent of the component in the map unit: 93 percent

Geomorphic setting: Hill on uplands

Position on landform: Summit and backslope

Parent material: Clayey residuum weathered from clayey shale

Slope range: 3 to 5 percent

Runoff: Very high

Depth to bedrock (paralithic): 20 to 40 inches

Slowest permeability class of the soil: Very slow

Slowest permeability class within a depth of 60 inches: Impermeable

Drainage class: Well drained

Available water capacity: About 4.1 inches

Depth to the top of the seasonal high water table: More than 6 feet

Flooding: None

Ponding: None

Interpretive groups:

Land capability classification—3e

Range site number and name—080AY810OK, Reseeded Claypan Prairie

Typical profile:

A—0 to 7 inches; silty clay loam

Btss—7 to 14 inches; silty clay loam

Btk—14 to 27 inches; clay

Cr—27 to 40 inches; bedrock

Location of representative profile: About 1,750 feet west and 100 feet south of the

northeast corner of sec. 18, T. 18 N., R. 2 W.

Management

Major uses: Hayland, pastureland, and rangeland

For general and detailed information about managing this map unit, see the

sections “Use and Management of the Soils” and “Soil Properties.”

PIT—Pits

Map Unit Setting

Major land resource area: 80A

Elevation range: 900 to 1,200 feet

Mean annual precipitation: 32 to 36 inches
Logan County, Oklahoma 111

Mean annual air temperature: 60 to 61 degrees F

Frost-free period: 200 to 210 days

Major Component Description

Pits

Extent of the component in the map unit: 100 percent

Geomorphic setting: Hill on uplands

Position on landform: Summit and backslope

Parent material: Sandy eolian deposits

Slope range: 0 to 4 percent

Runoff: High

Interpretive groups:

Land capability classification—8s

Range site number and name—none assigned

Definition:

This map unit consists of areas where sandy soils are being removed as a source

of sand for construction and concrete mix. Some areas are used for the removal of

shale or soil material for road construction.

Location of a representative area: About 1,700 feet north and 2,000 feet east of the

southwest corner of sec. 16, T. 17 N., R. 2 W.

Management

For general and detailed information about managing this map unit, see the

sections “Use and Management of the Soils” and “Soil Properties.”

PukA—Pulaski fine sandy loam, 0 to 1 percent slopes,

frequently flooded

Map Unit Setting

Major land resource area: 84A

Elevation range: 850 to 1,050 feet

Mean annual precipitation: 32 to 36 inches

Mean annual air temperature: 60 to 61 degrees F

Frost-free period: 200 to 210 days

Major Component Description

Pulaski and similar soils

Extent of the component in the map unit: 85 percent

Geomorphic setting: Flood plain in a valley

Parent material: Coarse-loamy alluvium

Slope range: 0 to 1 percent

Runoff: Negligible

Soil depth: More than 60 inches

Slowest permeability class of the soil: Moderately rapid

Slowest permeability class within a depth of 60 inches: Moderately rapid

Drainage class: Well drained

Available water capacity: About 8.8 inches

Depth to the top of the seasonal high water table: More than 6 feet

Flooding: Frequent

Ponding: None
112 Soil Survey

Interpretive groups:

Land capability classification—5w

Range site number and name—084AY050OK, Loamy Bottomland

Typical profile:

A—0 to 8 inches; fine sandy loam

C1—8 to 28 inches; fine sandy loam

C2—28 to 80 inches; stratified loamy fine sand to loam

Location of representative profile: About 300 feet east and 50 feet north of the

southwest corner of sec. 14, T. 15 N., R. 1 W.

Management

Major uses: Hayland, pastureland, and rangeland

For general and detailed information about managing this map unit, see the

sections “Use and Management of the Soils” and “Soil Properties.”

PulA—Pulaski fine sandy loam, 0 to 1 percent slopes,

occasionally flooded

Map Unit Setting

Major land resource area: 84A

Elevation range: 850 to 1,050 feet

Mean annual precipitation: 32 to 36 inches

Mean annual air temperature: 60 to 61 degrees F

Frost-free period: 200 to 210 days

Major Component Description

Pulaski and similar soils

Extent of the component in the map unit: 85 percent

Geomorphic setting: Flood plain in a valley

Parent material: Coarse-loamy alluvium

Slope range: 0 to 1 percent

Runoff: Negligible

Soil depth: More than 60 inches

Slowest permeability class of the soil: Moderately rapid

Slowest permeability class within a depth of 60 inches: Moderately rapid

Drainage class: Well drained

Available water capacity: About 9.0 inches

Depth to the top of the seasonal high water table: More than 6 feet

Flooding: Occasional

Ponding: None

Interpretive groups:

Land capability classification—2w

Range site number and name—084AY050OK, Loamy Bottomland

Typical profile:

A1—0 to 10 inches; fine sandy loam

A2—10 to 14 inches; fine sandy loam

C1—14 to 36 inches; fine sandy loam

C2—36 to 80 inches; stratified loamy fine sand to loam
Logan County, Oklahoma 113

Location of representative profile: About 4,900 feet south and 300 feet west of the

northeast corner of sec. 29, T. 16 N., R. 1 E.

Management

Major uses: Cropland, hayland, pastureland, and rangeland

For general and detailed information about managing this map unit, see the

sections “Use and Management of the Soils” and “Soil Properties.”

RenB—Renfrow silt loam, 1 to 3 percent slopes

Map Unit Setting

Major land resource area: 80A

Elevation range: 900 to 1,200 feet

Mean annual precipitation: 32 to 36 inches

Mean annual air temperature: 60 to 61 degrees F

Frost-free period: 200 to 210 days

Major Component Description

Renfrow and similar soils

Extent of the component in the map unit: 89 percent

Geomorphic setting: Hill on uplands

Position on landform: Summit and shoulder

Parent material: Clayey residuum weathered from clayey shale

Slope range: 1 to 3 percent

Runoff: Very high

Depth to bedrock (paralithic): 60 to 96 inches

Slowest permeability class of the soil: Very slow

Slowest permeability class within a depth of 60 inches: Very slow

Drainage class: Well drained

Available water capacity: About 10.6 inches

Depth to the top of the seasonal high water table: More than 6 feet

Flooding: None

Ponding: None

Interpretive groups:

Land capability classification—2e

Range site number and name—080AY010OK, Claypan Prairie (north)

Typical profile:

Ap—0 to 11 inches; silt loam

BA—11 to 19 inches; silty clay loam

Bt—19 to 33 inches; silty clay

Btk—33 to 66 inches; silty clay

BC—66 to 72 inches; silty clay

Cr—72 to 80 inches; bedrock

Location of representative profile: About 500 feet west and 1,200 feet south of the

northeast corner of sec. 34, T. 19 N., R. 3 W.

Management

Major uses: Cropland (fig. 15), hayland, pastureland, and rangeland

For general and detailed information about managing this map unit, see the

sections “Use and Management of the Soils” and “Soil Properties.”
114 Soil Survey

RenC—Renfrow silt loam, 3 to 5 percent slopes

Map Unit Setting

Major land resource area: 80A

Elevation range: 900 to 1,200 feet

Mean annual precipitation: 32 to 36 inches

Mean annual air temperature: 60 to 61 degrees F

Frost-free period: 200 to 210 days

Major Component Description

Renfrow and similar soils

Extent of the component in the map unit: 89 percent

Geomorphic setting: Hill on uplands

Position on landform: Backslope

Parent material: Clayey residuum weathered from clayey shale

Slope range: 3 to 5 percent

Runoff: Very high

Depth to bedrock (paralithic): 60 to 96 inches

Slowest permeability class of the soil: Very slow

Slowest permeability class within a depth of 60 inches: Very slow

Drainage class: Well drained

Available water capacity: About 10.5 inches

Depth to the top of the seasonal high water table: More than 6 feet

Flooding: None

Ponding: None

Figure 15.—Wheat growing on Renfrow silt loam, 1 to 3 percent slopes.
Logan County, Oklahoma 115

Interpretive groups:

Land capability classification—3e

Range site number and name—080AY010OK, Claypan Prairie (north)

Typical profile:

Ap—0 to 10 inches; silt loam

BA—10 to 16 inches; silt loam

Bt1—16 to 27 inches; silty clay loam

Bt2—27 to 38 inches; silty clay loam

Bt3—38 to 67 inches; silty clay

Cr—67 to 80 inches; bedrock

Location of representative profile: About 2,100 feet west and 2,400 feet north of the

southeast corner of sec. 3, T. 19 N., R. 2 W.

Management

Major uses: Cropland, hayland, pastureland, and rangeland

For general and detailed information about managing this map unit, see the

sections “Use and Management of the Soils” and “Soil Properties.”

RewC2—Renfrow silty clay loam, 3 to 5 percent slopes,

eroded

Map Unit Setting

Major land resource area: 80A

Elevation range: 900 to 1,200 feet

Mean annual precipitation: 32 to 36 inches

Mean annual air temperature: 60 to 61 degrees F

Frost-free period: 200 to 210 days

Major Component Description

Renfrow and similar soils

Extent of the component in the map unit: 84 percent

Geomorphic setting: Hill on uplands

Position on landform: Backslope

Parent material: Clayey residuum weathered from clayey shale

Slope range: 3 to 5 percent

Runoff: Very high

Depth to bedrock (paralithic): 60 to 96 inches

Slowest permeability class of the soil: Very slow

Slowest permeability class within a depth of 60 inches: Very slow

Drainage class: Well drained

Available water capacity: About 10.2 inches

Depth to the top of the seasonal high water table: More than 6 feet

Flooding: None

Ponding: None

Interpretive groups:

Land capability classification—3e

Range site number and name—080AY810OK, Reseeded Claypan Prairie

Typical profile:

Ap—0 to 10 inches; silty clay loam
116 Soil Survey

Bt1—10 to 24 inches; silty clay

Bt2—24 to 37 inches; silty clay

Bt3—37 to 54 inches; silty clay

BC—54 to 63 inches; silty clay

Cr—63 to 80 inches; bedrock

Location of representative profile: About 2,300 feet south and 2,200 feet east of the

northwest corner of sec. 22, T. 19 N., R. 4 W.

Management

Major uses: Cropland, hayland, pastureland, and rangeland

For general and detailed information about managing this map unit, see the

sections “Use and Management of the Soils” and “Soil Properties.”

RinB—Renthin silt loam, 1 to 3 percent slopes

Map Unit Setting

Major land resource area: 80A

Elevation range: 900 to 1,200 feet

Mean annual precipitation: 32 to 36 inches

Mean annual air temperature: 60 to 61 degrees F

Frost-free period: 200 to 210 days

Major Component Description

Renthin and similar soils

Extent of the component in the map unit: 81 percent

Geomorphic setting: Hill on uplands

Position on landform: Summit and backslope

Parent material: Clayey residuum weathered from clayey shale

Slope range: 1 to 3 percent

Runoff: Very high

Depth to bedrock (paralithic): 40 to 60 inches

Slowest permeability class of the soil: Very slow

Slowest permeability class within a depth of 60 inches: Very slow

Drainage class: Well drained

Available water capacity: About 8.8 inches

Depth to the top of the seasonal high water table: More than 6 feet

Flooding: None

Ponding: None

Interpretive groups:

Land capability classification—2e

Range site number and name—080AY010OK, Claypan Prairie (north)

Typical profile:

Ap—0 to 7 inches; silt loam

BA—7 to 12 inches; silty clay loam

Bt—12 to 21 inches; silty clay loam

Btk1—21 to 32 inches; silty clay

Btk2—32 to 54 inches; silty clay

Cr—54 to 60 inches; bedrock

Location of representative profile: About 2,500 feet east and 500 feet south of the

northwest corner of sec. 17, T. 17 N., R. 1 W.
Logan County, Oklahoma 117

Management

Major uses: Cropland, hayland, pastureland, and rangeland

For general and detailed information about managing this map unit, see the

sections “Use and Management of the Soils” and “Soil Properties.”

RnnC2—Renthin silty clay loam, 3 to 5 percent slopes,

eroded

Map Unit Setting

Major land resource area: 80A

Elevation range: 900 to 1,200 feet

Mean annual precipitation: 32 to 36 inches

Mean annual air temperature: 60 to 61 degrees F

Frost-free period: 200 to 210 days

Major Component Description

Renthin and similar soils

Extent of the component in the map unit: 80 percent

Geomorphic setting: Hill on uplands

Position on landform: Summit and backslope

Parent material: Clayey residuum weathered from clayey shale

Slope range: 3 to 5 percent

Runoff: Very high

Depth to bedrock (paralithic): 40 to 60 inches

Slowest permeability class of the soil: Very slow

Slowest permeability class within a depth of 60 inches: Very slow

Drainage class: Well drained

Available water capacity: About 8.7 inches

Depth to the top of the seasonal high water table: More than 6 feet

Flooding: None

Ponding: None

Interpretive groups:

Land capability classification—3e

Range site number and name—080AY810OK, Reseeded Claypan Prairie

Typical profile:

Ap—0 to 10 inches; silt loam

Bt—10 to 20 inches; silty clay loam

Btk1—20 to 33 inches; silty clay

Btk2—33 to 45 inches; silty clay

BCk—45 to 50 inches; gravelly silty clay

Cr—50 to 60 inches; bedrock

Location of representative profile: About 1,700 feet east and 2,000 feet south of the

northwest corner of sec. 17, T. 17 N., R. 1 W.

Management

Major uses: Cropland, hayland, pastureland, and rangeland

For general and detailed information about managing this map unit, see the

sections “Use and Management of the Soils” and “Soil Properties.”
118 Soil Survey

SDGD4—Stephenville-Darsil-Gullied land complex, 3 to 8

percent slopes

Map Unit Setting

Major land resource area: 84A

Elevation range: 900 to 1,200 feet

Mean annual precipitation: 32 to 36 inches

Mean annual air temperature: 60 to 61 degrees F

Frost-free period: 200 to 210 days

Major Component Description

Stephenville and similar soils

Extent of the component in the map unit: 32 percent

Geomorphic setting: Hill on uplands

Position on landform: Summit and backslope

Parent material: Residuum weathered from sandstone

Slope range: 3 to 8 percent

Runoff: Medium

Depth to bedrock (paralithic): 20 to 40 inches

Slowest permeability class of the soil: Moderate

Slowest permeability class within a depth of 60 inches: Moderately slow

Drainage class: Well drained

Available water capacity: About 3.5 inches

Depth to the top of the seasonal high water table: More than 6 feet

Flooding: None

Ponding: None

Interpretive groups:

Land capability classification—4e

Range site number and name—084AY876OK, Reseeded Sandy Savannah

Typical profile:

Ap—0 to 5 inches; fine sandy loam

Bt1—5 to 12 inches; sandy clay loam

Bt2—12 to 22 inches; sandy clay loam

Cr—22 to 36 inches; bedrock

Location of representative profile: About 1,100 feet north and 1,250 feet west of the

southeast corner of sec. 11, T. 15 N., R. 1 E.

Darsil and similar soils

Extent of the component in the map unit: 31 percent

Geomorphic setting: Hill on uplands

Position on landform: Shoulder

Parent material: Residuum weathered from sandstone

Slope range: 3 to 8 percent

Runoff: High

Depth to bedrock (paralithic): 10 to 20 inches

Slowest permeability class of the soil: Rapid

Slowest permeability class within a depth of 60 inches: Moderately slow

Drainage class: Excessively drained

Available water capacity: About 1.0 inch

Depth to the top of the seasonal high water table: More than 6 feet
Logan County, Oklahoma 119

Flooding: None

Ponding: None

Interpretive groups:

Land capability classification—6e

Range site number and name—084AY889OK, Reseeded Shallow Savannah

Typical profile:

Ap—0 to 4 inches; loamy fine sand

EC—4 to 12 inches; loamy fine sand

Cr—12 to 24 inches; bedrock

Location of representative profile: About 1,075 feet north and 1,200 feet west of the

southeast corner of sec. 11, T. 15 N., R. 1 E.

Gullied land

Extent of the component in the map unit: 23 percent

Geomorphic setting: Hill on uplands

Position on landform: Backslope

Parent material: Sandstone

Slope range: 3 to 8 percent

Runoff: Very high

Interpretive groups:

Land capability classification—8e

Range site number and name—none assigned

Definition:

Gullied land consists of deep uncrossable gullies that have cut through the subsoil

of the Stephenville and Darsil soils. Unweathered sandstone and shale is exposed in

the bottom of the gullies.

Location of a representative area: About 1,050 feet north and 1,225 feet west of the

southeast corner of sec. 11, T. 15 N., R. 1 E.

Management

Major uses: Rangeland

For general and detailed information about managing this map unit, see the

sections “Use and Management of the Soils” and “Soil Properties.”

SDND—Stephenville-Darsil-Newalla complex, 3 to 8

percent slopes

Map Unit Setting

Major land resource area: 84A

Elevation range: 900 to 1,200 feet

Mean annual precipitation: 32 to 36 inches

Mean annual air temperature: 60 to 61 degrees F

Frost-free period: 200 to 210 days

Major Component Description

Stephenville and similar soils

Extent of the component in the map unit: 44 percent

Geomorphic setting: Hill on uplands
120 Soil Survey

Position on landform: Summit and backslope

Parent material: Residuum weathered from sandstone

Slope range: 3 to 8 percent

Runoff: Medium

Depth to bedrock (paralithic): 20 to 40 inches

Slowest permeability class of the soil: Moderately rapid

Slowest permeability class within a depth of 60 inches: Moderately slow

Drainage class: Well drained

Available water capacity: About 4.3 inches

Depth to the top of the seasonal high water table: More than 6 feet

Flooding: None

Ponding: None

Interpretive groups:

Land capability classification—4e

Range site number and name—084AY076OK, Sandy Savannah (central)

Typical profile:

A—0 to 7 inches; fine sandy loam

E—7 to 13 inches; loamy fine sand

Bt—13 to 28 inches; sandy clay loam

Cr—28 to 36 inches; bedrock

Location of representative profile: About 400 feet west and 2,400 feet north of the

southeast corner of sec. 14, T. 15 N., R. 1 W.

Darsil and similar soils

Extent of the component in the map unit: 29 percent

Geomorphic setting: Hill on uplands

Position on landform: Shoulder

Parent material: Fine-silty alluvium

Slope range: 3 to 8 percent

Runoff: High

Depth to bedrock (paralithic): 10 to 20 inches

Slowest permeability class of the soil: Rapid

Slowest permeability class within a depth of 60 inches: Moderately slow

Drainage class: Excessively drained

Available water capacity: About 1.5 inches

Depth to the top of the seasonal high water table: More than 6 feet

Flooding: None

Ponding: None

Interpretive groups:

Land capability classification—6e

Range site number and name—084AY089OK, Shallow Savannah

Typical profile:

A—0 to 5 inches; fine sandy loam

EC—5 to 18 inches; loamy fine sand

Cr—18 to 20 inches; bedrock

Location of representative profile: About 450 feet west and 2,400 feet north of the

southeast corner of sec. 14, T. 15 N., R. 1 W.

Newalla and similar soils

Extent of the component in the map unit: 21 percent

Geomorphic setting: Hill on uplands
Logan County, Oklahoma 121

Position on landform: Backslope

Parent material: Fine-loamy residuum weathered from sandstone over clayey

residuum weathered from clayey shale

Slope range: 3 to 8 percent

Runoff: Very high

Depth to bedrock (paralithic): 40 to 60 inches

Slowest permeability class of the soil: Very slow

Slowest permeability class within a depth of 60 inches: Very slow

Drainage class: Moderately well drained

Available water capacity: About 6.6 inches

Depth to the top of the seasonal high water table: More than 6 feet

Flooding: None

Ponding: None

Interpretive groups:

Land capability classification—4e

Range site number and name—084AY076OK, Sandy Savannah (central)

Typical profile:

A—0 to 4 inches; fine sandy loam

E—4 to 8 inches; fine sandy loam

Bt—8 to 13 inches; sandy clay loam

2Bt—13 to 27 inches; clay

2Btk—27 to 48 inches; clay

2Cr—48 to 80 inches; bedrock

Location of representative profile: About 600 feet west and 2,400 feet north of the

southeast corner of sec. 14, T. 15 N., R. 1 W.

Management

Major uses: Rangeland

For general and detailed information about managing this map unit, see the

sections “Use and Management of the Soils” and “Soil Properties.”

SDND2—Stephenville-Darsil-Newalla complex, 3 to 8

percent slopes, eroded

Map Unit Setting

Major land resource area: 84A

Elevation range: 900 to 1,200 feet

Mean annual precipitation: 32 to 36 inches

Mean annual air temperature: 60 to 61 degrees F

Frost-free period: 200 to 210 days

Major Component Description

Stephenville and similar soils

Extent of the component in the map unit: 44 percent

Geomorphic setting: Hill on uplands

Position on landform: Summit and backslope

Parent material: Residuum weathered from sandstone

Slope range: 3 to 8 percent

Runoff: Medium
122 Soil Survey

Depth to bedrock (paralithic): 20 to 40 inches

Slowest permeability class of the soil: Moderate

Slowest permeability class within a depth of 60 inches: Moderately slow

Drainage class: Well drained

Available water capacity: About 4.8 inches

Depth to the top of the seasonal high water table: More than 6 feet

Flooding: None

Ponding: None

Interpretive groups:

Land capability classification—4e

Range site number and name—084AY876OK, Reseeded Sandy Savannah

Typical profile:

Ap—0 to 7 inches; fine sandy loam

Bt1—7 to 12 inches; sandy clay loam

Bt2—12 to 25 inches; sandy clay loam

BC—25 to 30 inches; sandy clay loam

Cr—30 to 36 inches; bedrock

Location of representative profile: About 2,100 feet west and 650 feet south of the

northeast corner of sec. 27, T. 15 N., R. 1 W.

Darsil and similar soils

Extent of the component in the map unit: 33 percent

Geomorphic setting: Hill on uplands

Position on landform: Shoulder

Parent material: Residuum weathered from sandstone

Slope range: 3 to 8 percent

Runoff: High

Depth to bedrock (paralithic): 10 to 20 inches

Slowest permeability class of the soil: Rapid

Slowest permeability class within a depth of 60 inches: Moderately slow

Drainage class: Excessively drained

Available water capacity: About 0.9 inch

Depth to the top of the seasonal high water table: More than 6 feet

Flooding: None

Ponding: None

Interpretive groups:

Land capability classification—6e

Range site number and name—084AY889OK, Reseeded Shallow Savannah

Typical profile:

Ap—0 to 6 inches; fine sandy loam

EC—6 to 11 inches; loamy fine sand

Cr—11 to 24 inches; bedrock

Location of representative profile: About 2,100 feet west and 600 feet south of the

northeast corner of sec. 27, T. 15 N., R. 1 W.

Newalla and similar soils

Extent of the component in the map unit: 20 percent

Geomorphic setting: Hill on uplands

Position on landform: Backslope

Parent material: Fine-loamy residuum weathered from sandstone over clayey

residuum weathered from clayey shale
Logan County, Oklahoma 123

Slope range: 3 to 8 percent

Runoff: Very high

Depth to bedrock (paralithic): 40 to 60 inches

Slowest permeability class of the soil: Very slow

Slowest permeability class within a depth of 60 inches: Very slow

Drainage class: Moderately well drained

Available water capacity: About 6.2 inches

Depth to the top of the seasonal high water table: More than 6 feet

Flooding: None

Ponding: None

Interpretive groups:

Land capability classification—6e

Range site number and name—084AY876OK, Reseeded Sandy Savannah

Typical profile:

Ap—0 to 5 inches; fine sandy loam

Bt—5 to 12 inches; clay loam

2Bt—12 to 26 inches; silty clay

2BC—26 to 40 inches; silty clay

2Cr—40 to 80 inches; bedrock

Location of representative profile: About 2,100 feet west and 550 feet south of the

northeast corner of sec. 27, T. 15 N., R. 1 W.

Management

Major uses: Rangeland

For general and detailed information about managing this map unit, see the

sections “Use and Management of the Soils” and “Soil Properties.”

SlaB—Slaughterville fine sandy loam, 1 to 3 percent

slopes

Map Unit Setting

Major land resource area: 80A

Elevation range: 850 to 1,100 feet

Mean annual precipitation: 32 to 36 inches

Mean annual air temperature: 60 to 61 degrees F

Frost-free period: 200 to 210 days

Major Component Description

Slaughterville and similar soils

Extent of the component in the map unit: 95 percent

Geomorphic setting: Dune in a dunefield on sandhills in a valley

Parent material: Coarse-loamy eolian deposits

Slope range: 1 to 3 percent

Runoff: Very low

Soil depth: More than 60 inches

Slowest permeability class of the soil: Moderately rapid

Slowest permeability class within a depth of 60 inches: Moderately rapid

Drainage class: Well drained

Available water capacity: About 7.5 inches
124 Soil Survey

Depth to the top of the seasonal high water table: More than 6 feet

Flooding: None

Ponding: None

Interpretive groups:

Land capability classification—2e

Range site number and name—080AY073OK, Sandy Prairie

Typical profile:

Ap—0 to 11 inches; fine sandy loam

A—11 to 20 inches; fine sandy loam

Bw1—20 to 34 inches; fine sandy loam

Bw2—34 to 42 inches; fine sandy loam

C1—42 to 53 inches; loamy fine sand

C2—53 to 80 inches; fine sandy loam

Location of representative profile: About 4,825 feet east and 425 feet north of the

southwest corner of sec. 36, T. 17 N., R. 4 W.

Management

Major uses: Cropland, hayland, pastureland, and rangeland

For general and detailed information about managing this map unit, see the

sections “Use and Management of the Soils” and “Soil Properties.”

SlaD—Slaughterville fine sandy loam, 3 to 8 percent

slopes

Map Unit Setting

Major land resource area: 80A

Elevation range: 850 to 1,100 feet

Mean annual precipitation: 32 to 36 inches

Mean annual air temperature: 60 to 61 degrees F

Frost-free period: 200 to 210 days

Major Component Description

Slaughterville and similar soils

Extent of the component in the map unit: 95 percent

Geomorphic setting: Dune in a dunefield on sandhills in a valley

Parent material: Coarse-loamy eolian deposits

Slope range: 3 to 8 percent

Runoff: Low

Soil depth: More than 60 inches

Slowest permeability class of the soil: Moderately rapid

Slowest permeability class within a depth of 60 inches: Moderately rapid

Drainage class: Well drained

Available water capacity: About 7.5 inches

Depth to the top of the seasonal high water table: More than 6 feet

Flooding: None

Ponding: None

Interpretive groups:

Land capability classification—4e

Range site number and name—080AY073OK, Sandy Prairie
Logan County, Oklahoma 125

Typical profile:

Ap—0 to 8 inches; fine sandy loam

A—8 to 16 inches; fine sandy loam

Bw1—16 to 34 inches; fine sandy loam

Bw2—34 to 50 inches; fine sandy loam

C—50 to 80 inches; loamy fine sand

Location of representative profile: About 1,650 feet west and 625 feet south of the

northeast corner of sec. 3, T. 16 N., R. 4 W.

Management

Major uses: Cropland, hayland, pastureland, and rangeland

For general and detailed information about managing this map unit, see the

sections “Use and Management of the Soils” and “Soil Properties.”

SlaF—Slaughterville fine sandy loam, 8 to 20 percent

slopes

Map Unit Setting

Major land resource area: 80A

Elevation range: 850 to 1,100 feet

Mean annual precipitation: 32 to 36 inches

Mean annual air temperature: 60 to 61 degrees F

Frost-free period: 200 to 210 days

Major Component Description

Slaughterville and similar soils

Extent of the component in the map unit: 95 percent

Geomorphic setting: Dune in a dunefield on sandhills in a valley

Parent material: Coarse-loamy eolian deposits

Slope range: 8 to 20 percent

Runoff: Low

Soil depth: More than 60 inches

Slowest permeability class of the soil: Moderately rapid

Slowest permeability class within a depth of 60 inches: Moderately rapid

Drainage class: Well drained

Available water capacity: About 7.5 inches

Depth to the top of the seasonal high water table: More than 6 feet

Flooding: None

Ponding: None

Interpretive groups:

Land capability classification—6e

Range site number and name—080AY073OK, Sandy Prairie

Typical profile:

Ap—0 to 8 inches; fine sandy loam

A—8 to 16 inches; fine sandy loam

Bw1—16 to 34 inches; fine sandy loam

Bw2—34 to 48 inches; fine sandy loam

C1—48 to 63 inches; loamy fine sand

C2—63 to 80 inches; loamy fine sand
126 Soil Survey

Location of representative profile: About 1,875 feet west and 3,250 feet south of the

northeast corner of sec. 3, T. 16 N., R. 4 W.

Management

Major uses: Pastureland and rangeland

For general and detailed information about managing this map unit, see the

sections “Use and Management of the Soils” and “Soil Properties.”

StDC—Stephenville-Darsil complex, 1 to 5 percent slopes

Map Unit Setting

Major land resource area: 84A

Elevation range: 900 to 1,200 feet

Mean annual precipitation: 32 to 36 inches

Mean annual air temperature: 60 to 61 degrees F

Frost-free period: 200 to 210 days

Major Component Description

Stephenville and similar soils

Extent of the component in the map unit: 55 percent

Geomorphic setting: Hill on uplands

Position on landform: Backslope

Parent material: Residuum weathered from sandstone

Slope range: 3 to 5 percent

Runoff: Low

Depth to bedrock (paralithic): 20 to 40 inches

Slowest permeability class of the soil: Moderate

Slowest permeability class within a depth of 60 inches: Moderately slow

Drainage class: Well drained

Available water capacity: About 4.5 inches

Depth to the top of the seasonal high water table: More than 6 feet

Flooding: None

Ponding: None

Interpretive groups:

Land capability classification—3e

Range site number and name—084AY076OK, Sandy Savannah (central)

Typical profile:

A—0 to 6 inches; fine sandy loam

E—6 to 14 inches; fine sandy loam

Bt1—14 to 23 inches; sandy clay loam

Bt2—23 to 30 inches; fine sandy loam

Cr—30 to 40 inches; bedrock

Location of representative profile: About 700 feet east and 700 feet south of the

northwest corner of sec. 35, T. 15 N., R. 1 W.

Darsil and similar soils

Extent of the component in the map unit: 30 percent

Geomorphic setting: Hill on uplands

Position on landform: Shoulder

Parent material: Residuum weathered from sandstone
Logan County, Oklahoma 127

Slope range: 1 to 5 percent

Runoff: Medium

Depth to bedrock (paralithic): 10 to 20 inches

Slowest permeability class of the soil: Rapid

Slowest permeability class within a depth of 60 inches: Moderately slow

Drainage class: Excessively drained

Available water capacity: About 1.2 inches

Depth to the top of the seasonal high water table: More than 6 feet

Flooding: None

Ponding: None

Interpretive groups:

Land capability classification—4e

Range site number and name—084AY089OK, Shallow Savannah

Typical profile:

Ap—0 to 4 inches; fine sandy loam

EC—4 to 15 inches; loamy fine sand

Cr—15 to 20 inches; bedrock

Location of representative profile: About 850 feet east and 700 feet south of the

northwest corner of sec. 35, T. 15 N., R. 1 W.

Management

Major uses: Pastureland and rangeland

For general and detailed information about managing this map unit, see the

sections “Use and Management of the Soils” and “Soil Properties.”

StDC2—Stephenville-Darsil complex, 1 to 5 percent

slopes, eroded

Map Unit Setting

Major land resource area: 84A

Elevation range: 900 to 1,200 feet

Mean annual precipitation: 32 to 36 inches

Mean annual air temperature: 60 to 61 degrees F

Frost-free period: 200 to 210 days

Major Component Description

Stephenville and similar soils

Extent of the component in the map unit: 55 percent

Geomorphic setting: Hill on uplands

Position on landform: Backslope

Parent material: Residuum weathered from sandstone

Slope range: 1 to 5 percent

Runoff: Low

Depth to bedrock (paralithic): 20 to 40 inches

Slowest permeability class of the soil: Moderate

Slowest permeability class within a depth of 60 inches: Moderately slow

Drainage class: Well drained

Available water capacity: About 6.1 inches

Depth to the top of the seasonal high water table: More than 6 feet
128 Soil Survey

Flooding: None

Ponding: None

Interpretive groups:

Land capability classification—3e

Range site number and name—084AY876OK, Reseeded Sandy Savannah

Typical profile:

Ap—0 to 8 inches; fine sandy loam

Bt1—8 to 21 inches; sandy clay loam

Bt2—21 to 32 inches; sandy clay loam

BC—32 to 38 inches; fine sandy loam

Cr—38 to 44 inches; bedrock

Location of representative profile: About 475 feet north and 50 feet east of the

southwest corner of sec. 34, T. 15 N., R. 1 W.

Darsil and similar soils

Extent of the component in the map unit: 30 percent

Geomorphic setting: Hill on uplands

Position on landform: Shoulder

Parent material: Residuum weathered from sandstone

Slope range: 1 to 5 percent

Runoff: Medium

Depth to bedrock (paralithic): 10 to 20 inches

Slowest permeability class of the soil: Rapid

Slowest permeability class within a depth of 60 inches: Moderately slow

Drainage class: Excessively drained

Available water capacity: About 1.4 inches

Depth to the top of the seasonal high water table: More than 6 feet

Flooding: None

Ponding: None

Interpretive groups:

Land capability classification—4e

Range site number and name—084AY889OK, Reseeded Shallow Savannah

Typical profile:

Ap—0 to 8 inches; fine sandy loam

EC—8 to 16 inches; loamy fine sand

Cr—16 to 30 inches; bedrock

Location of representative profile: About 375 feet north and 50 feet east of the

southwest corner of sec. 34, T. 15 N., R. 1 W.

Management

Major uses: Pastureland and rangeland

For general and detailed information about managing this map unit, see the

sections “Use and Management of the Soils” and “Soil Properties.”

StDE—Stephenville-Darsil complex, 5 to 15 percent

slopes

Map Unit Setting

Major land resource area: 84A

Elevation range: 900 to 1,200 feet
Logan County, Oklahoma 129

Mean annual precipitation: 32 to 36 inches

Mean annual air temperature: 60 to 61 degrees F

Frost-free period: 200 to 210 days

Major Component Description

Stephenville and similar soils

Extent of the component in the map unit: 50 percent

Geomorphic setting: Hill on uplands

Position on landform: Shoulder

Parent material: Residuum weathered from sandstone

Slope range: 8 to 15 percent

Runoff: Medium

Depth to bedrock (paralithic): 20 to 40 inches

Slowest permeability class of the soil: Moderately rapid

Slowest permeability class within a depth of 60 inches: Moderately slow

Drainage class: Well drained

Available water capacity: About 4.1 inches

Depth to the top of the seasonal high water table: More than 6 feet

Flooding: None

Ponding: None

Interpretive groups:

Land capability classification—6e

Range site number and name—084AY076OK, Sandy Savannah (central)

Typical profile:

A—0 to 7 inches; fine sandy loam

E—7 to 14 inches; fine sandy loam

Bt—14 to 27 inches; sandy clay loam

Cr—27 to 40 inches; bedrock

Location of representative profile: About 450 feet west and 2,100 feet north of the

southeast corner of sec. 26, T. 15 N., R. 1 E.

Darsil and similar soils

Extent of the component in the map unit: 40 percent

Geomorphic setting: Hill on uplands

Position on landform: Backslope

Parent material: Residuum weathered from sandstone

Slope range: 5 to 8 percent

Runoff: High

Depth to bedrock (paralithic): 10 to 20 inches

Slowest permeability class of the soil: Rapid

Slowest permeability class within a depth of 60 inches: Moderately slow

Drainage class: Excessively drained

Available water capacity: About 1.4 inches

Depth to the top of the seasonal high water table: More than 6 feet

Flooding: None

Ponding: None

Interpretive groups:

Land capability classification—6e

Range site number and name—084AY089OK, Shallow Savannah
130 Soil Survey

Typical profile:

A—0 to 7 inches; loamy fine sand

EC—7 to 16 inches; loamy fine sand

Cr—16 to 20 inches; bedrock

Location of representative profile: About 600 feet west and 2,100 feet north of the

southeast corner of sec. 26, T. 15 N., R. 1 E.

Management

Major uses: Pastureland and rangeland

For general and detailed information about managing this map unit, see the

sections “Use and Management of the Soils” and “Soil Properties.”

SteB—Stephenville fine sandy loam, 1 to 3 percent slopes

Map Unit Setting

Major land resource area: 84A

Elevation range: 900 to 1,200 feet

Mean annual precipitation: 32 to 36 inches

Mean annual air temperature: 60 to 61 degrees F

Frost-free period: 200 to 210 days

Major Component Description

Stephenville and similar soils

Extent of the component in the map unit: 94 percent

Geomorphic setting: Hill on uplands

Position on landform: Shoulder and summit

Parent material: Residuum weathered from sandstone

Slope range: 1 to 3 percent

Runoff: Low

Depth to bedrock (paralithic): 20 to 40 inches

Slowest permeability class of the soil: Moderate

Slowest permeability class within a depth of 60 inches: Moderately slow

Drainage class: Well drained

Available water capacity: About 5.4 inches

Depth to the top of the seasonal high water table: More than 6 feet

Flooding: None

Ponding: None

Interpretive groups:

Land capability classification—2e

Range site number and name—084AY076OK, Sandy Savannah (central)

Typical profile:

A—0 to 6 inches; fine sandy loam

E—6 to 12 inches; fine sandy loam

Bt1—12 to 22 inches; sandy clay loam

Bt2—22 to 35 inches; sandy clay loam

Cr—35 to 40 inches; bedrock

Location of representative profile: About 400 feet east and 1,400 feet south of the

northwest corner of sec. 29, T. 15 N., R. 1 W.
Logan County, Oklahoma 131

Management

Major uses: Cropland, hayland, pastureland, and rangeland

For general and detailed information about managing this map unit, see the

sections “Use and Management of the Soils” and “Soil Properties.”

SteC2—Stephenville fine sandy loam, 3 to 5 percent

slopes, eroded

Map Unit Setting

Major land resource area: 84A

Elevation range: 900 to 1,200 feet

Mean annual precipitation: 32 to 36 inches

Mean annual air temperature: 60 to 61 degrees F

Frost-free period: 200 to 210 days

Major Component Description

Stephenville and similar soils

Extent of the component in the map unit: 92 percent

Geomorphic setting: Hill on uplands

Position on landform: Summit and backslope

Parent material: Residuum weathered from sandstone

Slope range: 3 to 5 percent

Runoff: Low

Depth to bedrock (paralithic): 20 to 40 inches

Slowest permeability class of the soil: Moderately rapid

Slowest permeability class within a depth of 60 inches: Moderately slow

Drainage class: Well drained

Available water capacity: About 4.7 inches

Depth to the top of the seasonal high water table: More than 6 feet

Flooding: None

Ponding: None

Interpretive groups:

Land capability classification—3e

Range site number and name—084AY876OK, Reseeded Sandy Savannah

Typical profile:

Ap—0 to 8 inches; fine sandy loam

Bt—8 to 29 inches; sandy clay loam

Cr—29 to 40 inches; bedrock

Location of representative profile: About 600 feet west and 400 feet north of the

southeast corner of sec. 2, T. 15 N., R. 1 W.

Management

Major uses: Cropland, hayland, pastureland, and rangeland

For general and detailed information about managing this map unit, see the

sections “Use and Management of the Soils” and “Soil Properties.”
132 Soil Survey

SUND—Stephenville-Urban land-Newalla complex, 1 to 8

percent slopes

Map Unit Setting

Major land resource area: 84A

Elevation range: 900 to 1,200 feet

Mean annual precipitation: 32 to 36 inches

Mean annual air temperature: 60 to 61 degrees F

Frost-free period: 200 to 210 days

Major Component Description

Stephenville and similar soils

Extent of the component in the map unit: 35 percent

Geomorphic setting: Hill on uplands

Position on landform: Summit and backslope

Parent material: Residuum weathered from sandstone

Slope range: 5 to 8 percent

Runoff: Medium

Depth to bedrock (paralithic): 20 to 40 inches

Slowest permeability class of the soil: Moderately rapid

Slowest permeability class within a depth of 60 inches: Moderately slow

Drainage class: Well drained

Available water capacity: About 4.5 inches

Depth to the top of the seasonal high water table: More than 6 feet

Flooding: None

Ponding: None

Interpretive groups:

Land capability classification—4e

Range site number and name—none assigned

Typical profile:

Ap—0 to 9 inches; fine sandy loam

Bt—9 to 28 inches; sandy clay loam

Cr—28 to 40 inches; bedrock

Location of representative profile: About 2,600 feet west and 350 feet north of the

southeast corner of sec. 26, T. 12 N., R. 2 W.

Urban land

Extent of the component in the map unit: 30 percent

Geomorphic setting: Hill on uplands

Position on landform: Summit and backslope

Parent material: Mine spoil or earthy fill derived from sandstone

Slope range: 1 to 8 percent

Runoff: Very high

Interpretive groups:

Land capability classification—8s

Range site number and name—none assigned

Definition:

Urban land mostly consists of residential and business areas, paved roads, streets,

and parking areas.
Logan County, Oklahoma 133

Location of a representative area: About 2,600 feet west and 100 feet north of the

southeast corner of sec. 26, T. 12 N., R. 2 W.

Newalla and similar soils

Extent of the component in the map unit: 15 percent

Geomorphic setting: Hill on uplands

Position on landform: Backslope and summit

Parent material: Fine-loamy residuum weathered from sandstone over clayey

residuum weathered from clayey shale

Slope range: 5 to 8 percent

Runoff: Very high

Depth to bedrock (paralithic): 40 to 60 inches

Slowest permeability class of the soil: Very slow

Slowest permeability class within a depth of 60 inches: Very slow

Drainage class: Moderately well drained

Available water capacity: About 8.9 inches

Depth to the top of the seasonal high water table: More than 6 feet

Flooding: None

Ponding: None

Interpretive groups:

Land capability classification—4e

Range site number and name—none assigned

Typical profile:

Ap—0 to 6 inches; loam

Bt—6 to 11 inches; clay loam

2Bt—11 to 34 inches; silty clay

2Btk—34 to 58 inches; silty clay

2Cr—58 to 72 inches; bedrock

Location of representative profile: Oklahoma County, Oklahoma; about 1,700 feet east

and 1,420 feet north of the southwest corner of sec. 35, T. 12 N., R. 1 E.

Management

Major uses: Urban land

For general and detailed information about managing this map unit, see the

sections “Use and Management of the Soils” and “Soil Properties.”

TelB—Teller loam, 1 to 3 percent slopes

Map Unit Setting

Major land resource area: 80A

Elevation range: 850 to 1,100 feet

Mean annual precipitation: 32 to 36 inches

Mean annual air temperature: 60 to 61 degrees F

Frost-free period: 200 to 210 days

Major Component Description

Teller and similar soils

Extent of the component in the map unit: 96 percent

Geomorphic setting: Stream terrace in a valley

Position on landform: Tread
134 Soil Survey

Parent material: Fine-loamy alluvium

Slope range: 1 to 3 percent

Runoff: Low

Soil depth: More than 60 inches

Slowest permeability class of the soil: Moderate

Slowest permeability class within a depth of 60 inches: Moderate

Drainage class: Well drained

Available water capacity: About 10.3 inches

Depth to the top of the seasonal high water table: More than 6 feet

Flooding: None

Ponding: None

Interpretive groups:

Land capability classification—2e

Range site number and name—080AY056OK, Loamy Prairie

Typical profile:

Ap—0 to 9 inches; loam

BA—9 to 15 inches; loam

Bt1—15 to 31 inches; clay loam

Bt2—31 to 44 inches; sandy clay loam

Bt3—44 to 55 inches; fine sandy loam

BC—55 to 80 inches; fine sandy loam

Location of representative profile: About 1,900 feet west and 170 feet north of the

southeast corner of sec. 19, T. 19 N., R. 3 W.

Management

Major uses: Cropland, hayland, pastureland, and rangeland

For general and detailed information about managing this map unit, see the

sections “Use and Management of the Soils” and “Soil Properties.”

TelC2—Teller loam, 3 to 5 percent slopes, eroded

Map Unit Setting

Major land resource area: 80A

Elevation range: 850 to 1,100 feet

Mean annual precipitation: 32 to 36 inches

Mean annual air temperature: 60 to 61 degrees F

Frost-free period: 200 to 210 days

Major Component Description

Teller and similar soils

Extent of the component in the map unit: 96 percent

Geomorphic setting: Stream terrace in a valley

Position on landform: Tread

Parent material: Fine-loamy alluvium

Slope range: 3 to 5 percent

Runoff: Very low

Soil depth: More than 60 inches

Slowest permeability class of the soil: Moderate

Slowest permeability class within a depth of 60 inches: Moderate

Drainage class: Well drained
Logan County, Oklahoma 135

Available water capacity: About 10.2 inches

Depth to the top of the seasonal high water table: More than 6 feet

Flooding: None

Ponding: None

Interpretive groups:

Land capability classification—3e

Range site number and name—080AY856OK, Reseeded Loamy Prairie

Typical profile:

Ap—0 to 4 inches; loam

BA—4 to 25 inches; loam

Bt1—25 to 44 inches; clay loam

Bt2—44 to 59 inches; sandy clay loam

Bt3—59 to 80 inches; sandy clay loam

Location of representative profile: About 850 feet west and 400 feet north of the

southeast corner of sec. 6, T. 16 N., R. 2 W.

Management

Major uses: Cropland, hayland, pastureland, and rangeland

For general and detailed information about managing this map unit, see the

sections “Use and Management of the Soils” and “Soil Properties.”

TriA—Tribbey fine sandy loam, 0 to 1 percent slopes,

frequently flooded

Map Unit Setting

Major land resource area: 84A

Elevation range: 850 to 1,050 feet

Mean annual precipitation: 32 to 36 inches

Mean annual air temperature: 60 to 61 degrees F

Frost-free period: 200 to 210 days

Major Component Description

Tribbey and similar soils

Extent of the component in the map unit: 90 percent

Geomorphic setting: Flood plain in a valley

Parent material: Coarse-loamy alluvium

Slope range: 0 to 1 percent

Runoff: High

Soil depth: More than 60 inches

Slowest permeability class of the soil: Moderately rapid

Slowest permeability class within a depth of 60 inches: Moderately rapid

Drainage class: Somewhat poorly drained

Available water capacity: About 8.4 inches

Depth to the top of the seasonal high water table: 0.5 foot to 3.5 feet

Flooding: Frequent

Ponding: None

Interpretive groups:

Land capability classification—5w

Range site number and name—084AY095OK, Subirrigated
136 Soil Survey

Typical profile:

A—0 to 6 inches; fine sandy loam

C1—6 to 45 inches; fine sandy loam

C2—45 to 80 inches; stratified loamy fine sand to loam

Location of representative profile: About 1,500 feet east and 2,450 feet north of the

southwest corner of sec. 19, T. 15 N., R. 1 W.

Management

Major uses: Rangeland

For general and detailed information about managing this map unit, see the

sections “Use and Management of the Soils” and “Soil Properties.”

URB—Urban land

Map Unit Setting

Major land resource area: 80A

Elevation range: 900 to 1,200 feet

Mean annual precipitation: 32 to 36 inches

Mean annual air temperature: 60 to 61 degrees F

Frost-free period: 200 to 210 days

Major Component Description

Urban land

Extent of the component in the map unit: 100 percent

Geomorphic setting: Hill on uplands

Parent material: Mine spoil or earthy fill derived from sandstone and shale

Slope range: 1 to 5 percent

Runoff: Very high

Interpretive groups:

Land capability classification—8s

Range site number and name—none assigned

Definition:

Urban land mostly consists of residential and business areas, paved roads, streets,

and parking areas.

Location of a representative area: About 50 feet east and 2,100 feet south of the

northwest corner of sec. 8, T. 16 N., R. 2 W.

Management

For general and detailed information about managing this map unit, see the

sections “Use and Management of the Soils” and “Soil Properties.”

W—Water

Map Unit Setting

Major land resource area: 80A

Elevation range: 850 to 1,200 feet

Mean annual precipitation: 32 to 36 inches

Mean annual air temperature: 60 to 61 degrees F

Frost-free period: 200 to 210 days
Logan County, Oklahoma 137

Major Component Description

Water

Extent of the component in the map unit: 100 percent

Interpretive groups:

Land capability classification—none assigned

Range site number and name—none assigned

Definition:

This map unit includes ponds, lakes, rivers, and other bodies of water.

Location of a representative area: About 2,100 feet east and 1,000 feet south of the

northwest corner of sec. 11, T. 16 N., R. 2 W.

Management

Major uses: Recreation

For general and detailed information about managing this map unit, see the

sections “Use and Management of the Soils” and “Soil Properties.”

YaaA—Yahola loam, 0 to 1 percent slopes, occasionally

flooded

Map Unit Setting

Major land resource area: 80A

Elevation range: 850 to 1,050 feet

Mean annual precipitation: 32 to 36 inches

Mean annual air temperature: 60 to 61 degrees F

Frost-free period: 200 to 210 days

Major Component Description

Yahola and similar soils

Extent of the component in the map unit: 87 percent

Geomorphic setting: Flood plain in a valley

Parent material: Coarse-loamy alluvium

Slope range: 0 to 1 percent

Runoff: Negligible

Soil depth: More than 60 inches

Slowest permeability class of the soil: Moderately rapid

Slowest permeability class within a depth of 60 inches: Moderately rapid

Drainage class: Well drained

Available water capacity: About 9.0 inches

Depth to the top of the seasonal high water table: More than 6 feet

Flooding: Occasional

Ponding: None

Interpretive groups:

Land capability classification—2w

Range site number and name—080AY050OK, Loamy Bottomland

Typical profile:

Ap—0 to 7 inches; loam

A1—7 to 14 inches; loam

A2—14 to 34 inches; loam
138 Soil Survey

C1—34 to 46 inches; stratified loamy fine sand to loam

C2—46 to 80 inches; stratified loamy fine sand to loam

Location of representative profile: About 2,300 feet east and 4,100 feet north of the

southwest corner of sec. 2, T. 16 N., R. 3 W.

Management

Major uses: Cropland, hayland, pastureland, and rangeland

For general and detailed information about managing this map unit, see the

sections “Use and Management of the Soils” and “Soil Properties.”

YahA—Yahola fine sandy loam, 0 to 1 percent slopes,

occasionally flooded

Map Unit Setting

Major land resource area: 80A

Elevation range: 850 to 1,050 feet

Mean annual precipitation: 32 to 36 inches

Mean annual air temperature: 60 to 61 degrees F

Frost-free period: 200 to 210 days

Major Component Description

Yahola and similar soils

Extent of the component in the map unit: 87 percent

Geomorphic setting: Flood plain in a valley

Parent material: Coarse-loamy alluvium

Slope range: 0 to 1 percent

Runoff: Negligible

Soil depth: More than 60 inches

Slowest permeability class of the soil: Moderately rapid

Slowest permeability class within a depth of 60 inches: Moderately rapid

Drainage class: Well drained

Available water capacity: About 9.0 inches

Depth to the top of the seasonal high water table: More than 6 feet

Flooding: Occasional

Ponding: None

Interpretive groups:

Land capability classification—2w

Range site number and name—080AY050OK, Loamy Bottomland

Typical profile:

Ap—0 to 6 inches; fine sandy loam

C1—6 to 34 inches; loam

C2—34 to 80 inches; stratified loamy fine sand to loam

Location of representative profile: About 1,700 feet east and 3,100 feet north of the

southwest corner of sec. 2, T. 16 N., R. 3 W.

Management

Major uses: Cropland, hayland, pastureland, and rangeland

For general and detailed information about managing this map unit, see the

sections “Use and Management of the Soils” and “Soil Properties.”
Logan County, Oklahoma 139

ZaHC—Zaneis-Huska complex, 3 to 5 percent slopes

Map Unit Setting

Major land resource area: 80A

Elevation range: 900 to 1,200 feet

Mean annual precipitation: 32 to 36 inches

Mean annual air temperature: 60 to 61 degrees F

Frost-free period: 200 to 210 days

Major Component Description

Zaneis and similar soils

Extent of the component in the map unit: 55 percent

Geomorphic setting: Hill on uplands

Position on landform: Shoulder and backslope

Parent material: Fine-loamy residuum weathered from sandstone

Slope range: 3 to 5 percent

Runoff: Low

Depth to bedrock (paralithic): 40 to 60 inches

Slowest permeability class of the soil: Moderately slow

Slowest permeability class within a depth of 60 inches: Impermeable

Drainage class: Well drained

Available water capacity: About 8.0 inches

Depth to the top of the seasonal high water table: More than 6 feet

Flooding: None

Ponding: None

Interpretive groups:

Land capability classification—3e

Range site number and name—080AY056OK, Loamy Prairie

Typical profile:

Ap—0 to 12 inches; fine sandy loam

Bt1—12 to 25 inches; sandy clay loam

Bt2—25 to 32 inches; sandy clay loam

BC—32 to 52 inches; sandy clay loam

Cr—52 to 60 inches; bedrock

Location of representative profile: About 1,450 feet west and 850 feet south of the

northeast corner of sec. 32, T. 17 N., R. 1 W.

Huska and similar soils

Extent of the component in the map unit: 25 percent

Geomorphic setting: Hill on uplands

Position on landform: Shoulder and backslope

Parent material: Clayey residuum weathered from sandstone and shale

Slope range: 3 to 5 percent

Runoff: Very high

Depth to bedrock (paralithic): 40 to 60 inches

Slowest permeability class of the soil: Very slow

Slowest permeability class within a depth of 60 inches: Impermeable

Drainage class: Moderately well drained

Available water capacity: About 5.1 inches

Depth to the top of the seasonal high water table: More than 6 feet

Flooding: None
140 Soil Survey

Ponding: None

Salt affected: Saline within a depth of 30 inches

Sodium affected: Sodic within a depth of 30 inches

Interpretive groups:

Land capability classification—4s

Range site number and name—080AY091OK, Slickspot

Typical profile:

Ap—0 to 5 inches; loam

Btn—5 to 13 inches; clay

Bt1—13 to 20 inches; clay

Bt2—20 to 39 inches; clay loam

Bt3—39 to 59 inches; clay loam

Cr—59 to 67 inches; bedrock

Location of representative profile: About 1,875 feet west and 850 feet south of the

northeast corner of sec. 32, T. 17 N., R. 1 W.

Management

Major uses: Cropland, hayland, pastureland, and rangeland

For general and detailed information about managing this map unit, see the

sections “Use and Management of the Soils” and “Soil Properties.”

ZanB—Zaneis loam, 1 to 3 percent slopes

Map Unit Setting

Major land resource area: 80A

Elevation range: 900 to 1,200 feet

Mean annual precipitation: 32 to 36 inches

Mean annual air temperature: 60 to 61 degrees F

Frost-free period: 200 to 210 days

Major Component Description

Zaneis and similar soils

Extent of the component in the map unit: 87 percent

Geomorphic setting: Hill on uplands

Position on landform: Summit and backslope

Parent material: Fine-loamy residuum weathered from sandstone

Slope range: 1 to 3 percent

Runoff: Medium

Depth to bedrock (paralithic): 40 to 60 inches

Slowest permeability class of the soil: Moderately slow

Slowest permeability class within a depth of 60 inches: Impermeable

Drainage class: Well drained

Available water capacity: About 7.3 inches

Depth to the top of the seasonal high water table: More than 6 feet

Flooding: None

Ponding: None

Interpretive groups:

Land capability classification—2e

Range site number and name—080AY056OK, Loamy Prairie
Logan County, Oklahoma 141

Typical profile:

Ap—0 to 10 inches; loam

Bt1—10 to 17 inches; loam

Bt2—17 to 28 inches; clay loam

Bt3—28 to 38 inches; clay loam

Bt4—38 to 44 inches; sandy clay loam

Cr—44 to 54 inches; bedrock

Location of representative profile: About 100 feet east and 100 feet south of the

northwest corner of sec. 35, T. 19 N., R. 2 W.

Management

Major uses: Cropland, hayland, pastureland, and rangeland

For general and detailed information about managing this map unit, see the

sections “Use and Management of the Soils” and “Soil Properties.”

ZanC—Zaneis loam, 3 to 5 percent slopes

Map Unit Setting

Major land resource area: 80A

Elevation range: 900 to 1,200 feet

Mean annual precipitation: 32 to 36 inches

Mean annual air temperature: 60 to 61 degrees F

Frost-free period: 200 to 210 days

Major Component Description

Zaneis and similar soils

Extent of the component in the map unit: 87 percent

Geomorphic setting: Hill on uplands

Position on landform: Summit and backslope

Parent material: Fine-loamy residuum weathered from sandstone

Slope range: 3 to 5 percent

Runoff: Low

Depth to bedrock (paralithic): 40 to 60 inches

Slowest permeability class of the soil: Moderately slow

Slowest permeability class within a depth of 60 inches: Impermeable

Drainage class: Well drained

Available water capacity: About 7.7 inches

Depth to the top of the seasonal high water table: More than 6 feet

Flooding: None

Ponding: None

Interpretive groups:

Land capability classification—3e

Range site number and name—080AY056OK, Loamy Prairie

Typical profile:

Ap—0 to 8 inches; loam

BA—8 to 14 inches; loam

Bt1—14 to 25 inches; loam

Bt2—25 to 31 inches; sandy clay loam

Bt3—31 to 47 inches; sandy clay loam

Cr—47 to 54 inches; bedrock
142

Location of representative profile: About 2,100 feet west and 100 feet south of the

northeast corner of sec. 27, T. 19 N., R. 3 W.

Management

Major uses: Cropland, hayland, pastureland, and rangeland

For general and detailed information about managing this map unit, see the

sections “Use and Management of the Soils” and “Soil Properties.”

ZanC2—Zaneis loam, 3 to 5 percent slopes, eroded

Map Unit Setting

Major land resource area: 80A

Elevation range: 900 to 1,200 feet

Mean annual precipitation: 32 to 36 inches

Mean annual air temperature: 60 to 61 degrees F

Frost-free period: 200 to 210 days

Major Component Description

Zaneis and similar soils

Extent of the component in the map unit: 87 percent

Geomorphic setting: Hill on uplands

Position on landform: Backslope

Parent material: Fine-loamy residuum weathered from sandstone

Slope range: 3 to 5 percent

Runoff: Medium

Depth to bedrock (paralithic): 40 to 60 inches

Slowest permeability class of the soil: Moderately slow

Slowest permeability class within a depth of 60 inches: Impermeable

Drainage class: Well drained

Available water capacity: About 9.1 inches

Depth to the top of the seasonal high water table: More than 6 feet

Flooding: None

Ponding: None

Interpretive groups:

Land capability classification—3e

Range site number and name—080AY856OK, Reseeded Loamy Prairie

Typical profile:

Ap—0 to 8 inches; loam

Bt1—8 to 15 inches; loam

Bt2—15 to 26 inches; sandy clay loam

Bt3—26 to 43 inches; sandy clay loam

Bt4—43 to 56 inches; sandy clay loam

Cr—56 to 60 inches; bedrock

Location of representative profile: About 475 feet east and 150 feet south of the

northwest corner of sec. 24, T. 16 N., R. 3 W.

Management

Major uses: Cropland, hayland, pastureland, and rangeland

For general and detailed information about managing this map unit, see the

sections “Use and Management of the Soils” and “Soil Properties.”
143

This soil survey is an inventory and evaluation of the soils in the survey area. It can

be used to adjust land uses to the limitations and potentials of natural resources and

the environment. Also, it can help to prevent soil-related failures in land uses.

In preparing a soil survey, soil scientists, conservationists, engineers, and others

collect extensive field data about the nature and behavioral characteristics of the soils.

They collect data on erosion, droughtiness, flooding, and other factors that affect

various soil uses and management. Field experience and collected data on soil

properties and performance are used as a basis in predicting soil behavior.

Information in this section can be used to plan the use and management of soils for

crops and pasture; as rangeland and woodland; as sites for buildings, sanitary

facilities, highways and other transportation systems, and parks and other recreational

facilities; and for wildlife habitat. It can be used to identify the potentials and limitations

of each soil for specific land uses and to help prevent construction failures caused by

unfavorable soil properties.

Interpretive ratings help engineers, planners, and others understand how soil

properties influence important nonagricultural uses, such as building site development

and construction materials. The ratings indicate the most restrictive soil features

affecting the suitability of the soils for these uses.

Soils are rated in their natural state. No unusual modification of the soil site or

material is made other than that which is considered normal practice for the rated use.

Even though soils may have limitations, it is important to remember that engineers and

others can modify soil features or can design or adjust the plans for a structure to

compensate for most of the limitations. Most of these practices, however, are costly.

The final decision in selecting a site for a particular use generally involves weighing

the costs of site preparation and maintenance.

Planners and others using soil survey information can evaluate the effect of specific

land uses on productivity and on the environment in all or part of the survey area. The

survey can help planners to maintain or create a land use pattern in harmony with the

natural soil.

Contractors can use this survey to locate sources of sand and gravel, roadfill, and

topsoil. They can use it to identify areas where bedrock, wetness, or very firm soil

layers can cause difficulty in excavation.

Health officials, highway officials, engineers, and others may also find this survey

useful. The survey can help them plan the safe disposal of wastes and locate sites for

pavements, sidewalks, campgrounds, playgrounds, lawns, and trees and shrubs.

Agronomy

General management concerns affecting the production of crops and hay and

pasture plants are identified in this section. The system of land capability classification

used by the Natural Resources Conservation Service is explained, and the estimated

yields of the main crops and hay and pasture plants are listed for each soil.

Planners of management systems for individual fields or farms should consider

specific information available from the local office of the Natural Resources

Conservation Service or the Cooperative Extension Service.

Use and Management of the Soils
144 Soil Survey

Land Capability Classification

Land capability classification shows, in a general way, the suitability of soils for most

kinds of field crops. Crops that require special management are excluded. The soils

are grouped according to their limitations for field crops, the risk of damage if they are

used for crops, and the way they respond to management. The criteria used in

grouping the soils do not include major and generally expensive landforming that

would change slope, depth, or other characteristics of the soils, nor do they include

possible but unlikely major reclamation projects. Capability classification is not a

substitute for interpretations designed to show suitability and limitations of groups of

soils for rangeland, woodland, or engineering purposes.

In the capability system, soils generally are grouped at three levels: capability class,

subclass, and unit (11). These levels indicate the degree and kinds of limitations

affecting mechanized farming systems that produce the more commonly grown field

crops, such as corn, small grain, cotton, hay, and field-grown vegetables. Only class

and subclass are used in this survey.

Capability classes, the broadest groups, are designated by Arabic numerals 1

through 8. The numerals indicate progressively greater limitations and narrower

choices for practical use.

If properly managed, soils in classes 1, 2, 3, and 4 are suitable for the mechanized

production of commonly grown field crops and for pasture and woodland. The degree

of the soil limitations affecting the production of cultivated crops increases

progressively from class 1 to class 4. The limitations can affect levels of production

and the risk of permanent soil deterioration caused by erosion and other factors.

Soils in classes 5, 6, and 7 are generally not suited to the mechanized production of

commonly grown field crops without special management, but they are suitable for

plants that provide a permanent cover, such as grasses and trees. The severity of the

soil limitations affecting crops increases progressively from class 5 to class 7. The

local office of the Natural Resources Conservation Service or the Cooperative

Extension Service can provide guidance on the use of these soils as cropland.

Areas in class 8 are generally not suitable for crops, pasture, rangeland, or

woodland. These areas may have potential for other uses, such as recreational

facilities and wildlife habitat.

Capability subclasses identify the dominant kind of limitation in the class. They are

designated by adding a small letter, e, w, s, or c, to the class numeral, for example, 2e.

The letter e shows that the main hazard is the risk of erosion unless a close-growing

plant cover is maintained; w shows that water in or on the soil interferes with plant

growth or cultivation (in some soils the wetness can be partly corrected by artificial

drainage); s shows that the soil is limited mainly because it is shallow, droughty, or

stony; and c, used in only some parts of the United States, shows that the chief

limitation is climate that is very cold or very dry.

There are no subclasses in class 1 because the soils of this class have few

limitations. Class 5 contains only the subclasses indicated by w, s, or c because the

soils in class 5 are subject to little or no erosion. They have other limitations that

restrict their use mainly to pasture, rangeland, woodland, wildlife habitat, or recreation.

The capability classification of each map unit is given in the table “Land Capability

and Yields per Acre of Crops and Pasture” and in the “Detailed Soil Map Units” section.
Logan County, Oklahoma 145 Land Capability and Yields per Acre of Crops and Pasture (Yields are those that can be expected under a high level of management. They are for nonirrigated areas. Absence of a yield indicates that the soil is not suited to the crop or the crop generally is not grown on the soil) ___________________________________________________________________________________________________________________ | | | | | | | | | Map symbol | Land |Alfalfa | Grain | Improved |Introduced| Soybeans| Tall | Weeping | Wheat and soil name |capability| hay |sorghum |bermudagrass| bluestem | |wheatgrass|lovegrass| | | | | | | | | | ___________________________________________________________________________________________________________________ | | Tons | Bu | AUM | AUM | Bu | AUM | AUM | Bu ____ __ ___ ___ __ ___ ___ __ | | | | | | | | | AspA: | | | | | | | | | Ashport------------| 2w | 5.00 | 50.00 | 8.50 | 6.50 | 30.00 | 7.00 | --- | 35.00 | | | | | | | | | AstA: | | | | | | | | | Ashport------------| 5w | --- | --- | 8.50 | 6.50 | --- | 7.00 | --- | --- | | | | | | | | | BetA: | | | | | | | | | Bethany------------| 1 | 3.50 | 50.00 | 5.00 | 6.00 | --- | 5.50 | --- | 40.00 | | | | | | | | | BetB: | | | | | | | | | Bethany------------| 2e | 3.00 | 45.00 | 4.50 | 5.50 | --- | 5.00 | --- | 35.00 | | | | | | | | | BocA: | | | | | | | | | Bocox--------------| 5w | --- | --- | 3.00 | 2.00 | --- | 3.00 | --- | --- | | | | | | | | | BtlA: | | | | | | | | | Bathel-------------| 3w | 2.50 | 35.00 | 6.00 | 3.00 | --- | 7.00 | --- | 25.00 | | | | | | | | | CaaA: | | | | | | | | | Canadian-----------| 1 | 4.00 | 55.00 | 8.50 | 6.50 | --- | 7.00 | --- | 40.00 | | | | | | | | | CAID: | | | | | | | | | Coyle--------------| 3e | 1.50 | --- | 4.50 | 4.50 | --- | 3.00 | 4.50 | --- | | | | | | | | | Ashport------------| 5w | --- | --- | 8.50 | 6.50 | --- | 7.00 | --- | --- | | | | | | | | | Ironmound----------| 4e | --- | --- | 2.00 | 2.00 | --- | --- | --- | --- | | | | | | | | | CoIC2: | | | | | | | | | Coyle--------------| 3e | 1.00 | 35.00 | 4.00 | 4.00 | --- | 3.00 | 4.00 | 15.00 | | | | | | | | | Ironmound----------| 3e | --- | 20.00 | 2.00 | 2.00 | --- | --- | --- | 12.00 | | | | | | | | | CoUB: | | | | | | | | | Coyle--------------| 3s | --- | --- | --- | --- | --- | --- | --- | --- | | | | | | | | | Urban land---------| 8s | --- | --- | --- | --- | --- | --- | --- | --- | | | | | | | | | CoUC: | | | | | | | | | Coyle--------------| 3e | --- | --- | --- | --- | --- | --- | --- | --- | | | | | | | | | Urban land---------| 8s | --- | --- | --- | --- | --- | --- | --- | --- | | | | | | | | |
146 Soil Survey Land Capability and Yields per Acre of Crops and Pasture—Continued ___________________________________________________________________________________________________________________ | | | | | | | | | Map symbol | Land |Alfalfa | Grain | Improved |Introduced| Soybeans| Tall | Weeping | Wheat and soil name |capability| hay |sorghum |bermudagrass| bluestem | |wheatgrass|lovegrass| | | | | | | | | | ___________________________________________________________________________________________________________________ | | Tons | Bu | AUM | AUM | Bu | AUM | AUM | Bu ____ __ ___ ___ __ ___ ___ __ | | | | | | | | | CoyB: | | | | | | | | | Coyle--------------| 2e | 2.00 | 45.00 | 5.00 | 5.00 | --- | 3.50 | 5.00 | 25.00 | | | | | | | | | CoyC2: | | | | | | | | | Coyle--------------| 3e | 1.00 | 35.00 | 4.00 | 4.00 | --- | 2.50 | 4.00 | 15.00 | | | | | | | | | CoZC3: | | | | | | | | | Coyle--------------| 6e | --- | --- | 2.50 | 2.50 | --- | 2.00 | 2.50 | --- | | | | | | | | | Zaneis-------------| 6e | --- | --- | 3.00 | 3.00 | --- | 2.00 | 3.00 | --- | | | | | | | | | DAM: | | | | | | | | | Dam----------------| 8s | --- | --- | --- | --- | --- | --- | --- | --- | | | | | | | | | DerB: | | | | | | | | | Derby--------------| 3s | 1.50 | 25.00 | 4.00 | 3.00 | --- | --- | 4.00 | 20.00 | | | | | | | | | DerD: | | | | | | | | | Derby--------------| 4e | 1.50 | 25.00 | 3.50 | 2.50 | --- | --- | 4.50 | 15.00 | | | | | | | | | DerE: | | | | | | | | | Derby--------------| 6e | --- | --- | 3.50 | 2.50 | --- | --- | 4.00 | --- | | | | | | | | | DiRG: | | | | | | | | | Darsil-------------| 7e | --- | --- | --- | --- | --- | --- | --- | --- | | | | | | | | | Rock outcrop-------| 8s | --- | --- | --- | --- | --- | --- | --- | --- | | | | | | | | | DouB: | | | | | | | | | Dougherty----------| 3e | 2.50 | 30.00 | 4.00 | 3.00 | --- | --- | 4.50 | 25.00 | | | | | | | | | DouD: | | | | | | | | | Dougherty----------| 4e | 2.00 | 25.00 | 3.50 | --- | --- | --- | 4.00 | 20.00 | | | | | | | | | DUM: | | | | | | | | | Dumps--------------| 8s | --- | --- | --- | --- | --- | --- | --- | --- | | | | | | | | | EasA: | | | | | | | | | Easpur-------------| 2w | 5.00 | 50.00 | 8.50 | 6.50 | 30.00 | 2.00 | --- | 35.00 | | | | | | | | | GadA: | | | | | | | | | Gaddy--------------| 3s | 3.00 | 30.00 | 4.00 | 3.00 | --- | --- | --- | 20.00 | | | | | | | | | GaGA: | | | | | | | | | Gaddy--------------| 5w | --- | --- | 4.00 | 3.00 | --- | 7.00 | --- | --- | | | | | | | | | Gracemore----------| 5w | --- | --- | 7.00 | 6.50 | --- | --- | --- | --- | | | | | | | | |
Logan County, Oklahoma 147 Land Capability and Yields per Acre of Crops and Pasture—Continued ___________________________________________________________________________________________________________________ | | | | | | | | | Map symbol | Land |Alfalfa | Grain | Improved |Introduced| Soybeans| Tall | Weeping | Wheat and soil name |capability| hay |sorghum |bermudagrass| bluestem | |wheatgrass|lovegrass| | | | | | | | | | ___________________________________________________________________________________________________________________ | | Tons | Bu | AUM | AUM | Bu | AUM | AUM | Bu ____ __ ___ ___ __ ___ ___ __ | | | | | | | | | GMGE4: | | | | | | | | | Grainola-----------| 6e | --- | --- | 2.00 | 3.00 | --- | --- | --- | --- | | | | | | | | | Masham-------------| 6e | --- | --- | 2.00 | 2.50 | --- | --- | --- | --- | | | | | | | | | Gullied land-------| 8e | --- | --- | --- | --- | --- | --- | --- | --- | | | | | | | | | GMLG: | | | | | | | | | Grainola-----------| 6e | --- | --- | 2.50 | 2.00 | --- | --- | --- | --- | | | | | | | | | Masham-------------| 7e | --- | --- | --- | --- | --- | --- | --- | --- | | | | | | | | | Lucien-------------| 6e | --- | --- | --- | --- | --- | --- | 2.00 | --- | | | | | | | | | GohC: | | | | | | | | | Goodnight----------| 3e | 1.50 | 25.00 | 4.00 | 3.00 | --- | --- | 4.50 | 15.00 | | | | | | | | | GohE: | | | | | | | | | Goodnight----------| 6e | --- | --- | 3.50 | 2.50 | --- | --- | 4.00 | --- | | | | | | | | | GooE: | | | | | | | | | Goodnight----------| 6e | --- | --- | 2.50 | 2.00 | --- | --- | --- | --- | | | | | | | | | GooG: | | | | | | | | | Goodnight----------| 7e | --- | --- | --- | --- | --- | --- | --- | --- | | | | | | | | | GraC: | | | | | | | | | Grainola-----------| 4e | --- | 30.00 | 3.50 | 4.00 | --- | 2.00 | --- | 15.00 | | | | | | | | | GraD2: | | | | | | | | | Grainola-----------| 6e | --- | --- | 2.50 | 3.00 | --- | 1.00 | --- | --- | | | | | | | | | GrHC: | | | | | | | | | Grant--------------| 3e | 2.00 | 40.00 | 5.00 | 4.50 | --- | 4.50 | 5.00 | 25.00 | | | | | | | | | Huska--------------| 4s | --- | 25.00 | 3.00 | 2.50 | --- | 1.50 | --- | 15.00 | | | | | | | | | GrIE: | | | | | | | | | Grainola-----------| 6e | 2.50 | --- | --- | --- | --- | --- | --- | --- | | | | | | | | | Ironmound----------| 6e | 2.00 | --- | --- | --- | --- | --- | --- | --- | | | | | | | | | GrLE: | | | | | | | | | Grainola-----------| 6e | --- | --- | 2.50 | 3.00 | --- | 2.00 | --- | --- | | | | | | | | | Lucien-------------| 6e | --- | --- | 2.00 | 2.50 | --- | 2.50 | 2.00 | --- | | | | | | | | |
148 Soil Survey Land Capability and Yields per Acre of Crops and Pasture—Continued ___________________________________________________________________________________________________________________ | | | | | | | | | Map symbol | Land |Alfalfa | Grain | Improved |Introduced| Soybeans| Tall | Weeping | Wheat and soil name |capability| hay |sorghum |bermudagrass| bluestem | |wheatgrass|lovegrass| | | | | | | | | | ___________________________________________________________________________________________________________________ | | Tons | Bu | AUM | AUM | Bu | AUM | AUM | Bu ____ __ ___ ___ __ ___ ___ __ | | | | | | | | | HaGD4: | | | | | | | | | Harrah-------------| 6e | --- | --- | 2.00 | 2.00 | --- | 2.00 | 2.50 | --- | | | | | | | | | Gullied land-------| 8e | --- | --- | --- | --- | --- | --- | --- | --- | | | | | | | | | HarC: | | | | | | | | | Harrah-------------| 3e | 2.50 | 40.00 | 4.00 | 4.00 | --- | 3.50 | 4.50 | 25.00 | | | | | | | | | HarC2: | | | | | | | | | Harrah-------------| 4e | 2.00 | 35.00 | 3.50 | 3.50 | --- | 3.00 | 4.00 | 20.00 | | | | | | | | | HarG: | | | | | | | | | Harrah-------------| 7e | --- | --- | --- | --- | --- | --- | --- | --- | | | | | | | | | HawB: | | | | | | | | | Hawley-------------| 3e | 3.50 | 50.00 | 8.00 | 7.00 | --- | 7.00 | --- | 30.00 | | | | | | | | | ICGD3: | | | | | | | | | Ironmound----------| 7e | --- | --- | --- | --- | --- | 1.50 | --- | --- | | | | | | | | | Coyle--------------| 6e | --- | --- | 2.50 | 2.00 | --- | 1.50 | 2.50 | --- | | | | | | | | | Grainola-----------| 6e | --- | --- | 2.00 | 2.50 | --- | --- | --- | --- | | | | | | | | | IrCE: | | | | | | | | | Ironmound----------| 6e | --- | --- | 2.00 | 2.00 | --- | --- | --- | --- | | | | | | | | | Coyle--------------| 6e | --- | --- | 2.50 | 2.50 | --- | 2.00 | 2.50 | --- | | | | | | | | | IroC2: | | | | | | | | | Ironmound----------| 3e | --- | --- | 2.00 | 2.00 | --- | 1.50 | --- | 12.00 | | | | | | | | | KgfB: | | | | | | | | | Kingfisher---------| 2e | 1.50 | 40.00 | 5.00 | 5.50 | --- | 4.50 | --- | 30.00 | | | | | | | | | KinC2: | | | | | | | | | Kingfisher---------| 3e | 1.00 | 30.00 | 4.00 | 4.50 | --- | 3.50 | --- | 20.00 | | | | | | | | | KonB: | | | | | | | | | Konawa-------------| 3e | 2.50 | 40.00 | 4.00 | 3.50 | --- | --- | 4.50 | 25.00 | | | | | | | | | KonD2: | | | | | | | | | Konawa-------------| 4e | 1.00 | 25.00 | 3.00 | 2.50 | --- | --- | 3.50 | 15.00 | | | | | | | | | KrdA: | | | | | | | | | Kirkland-----------| 2s | 2.50 | 40.00 | 4.00 | 5.50 | --- | 3.50 | 4.00 | 35.00 | | | | | | | | |
Logan County, Oklahoma 149 Land Capability and Yields per Acre of Crops and Pasture—Continued ___________________________________________________________________________________________________________________ | | | | | | | | | Map symbol | Land |Alfalfa | Grain | Improved |Introduced| Soybeans| Tall | Weeping | Wheat and soil name |capability| hay |sorghum |bermudagrass| bluestem | |wheatgrass|lovegrass| | | | | | | | | | ___________________________________________________________________________________________________________________ | | Tons | Bu | AUM | AUM | Bu | AUM | AUM | Bu ____ __ ___ ___ __ ___ ___ __ | | | | | | | | | KrkB: | | | | | | | | | Kirkland-----------| 3e | 2.00 | 35.00 | 4.00 | 5.00 | --- | 3.50 | 4.00 | 30.00 | | | | | | | | | LarA, LawA: | | | | | | | | | Lawrie-------------| 1 | 5.50 | 70.00 | 8.50 | 6.50 | 30.00 | 7.00 | --- | 40.00 | | | | | | | | | LerA: | | | | | | | | | Lebron-------------| 6w | --- | 30.00 | 5.00 | 2.50 | --- | 7.00 | --- | 15.00 | | | | | | | | | LitB: | | | | | | | | | Littleaxe----------| 2e | 3.00 | 50.00 | 5.00 | 4.50 | --- | 4.50 | 5.50 | 30.00 | | | | | | | | | LitC2: | | | | | | | | | Littleaxe----------| 3e | 2.50 | 40.00 | 4.50 | 4.00 | --- | 4.00 | 5.00 | 20.00 | | | | | | | | | M-W. | | | | | | | | | Miscellaneous water| | | | | | | | | | | | | | | | | | MaID: | | | | | | | | | Masham-------------| 6e | --- | --- | 2.00 | 2.50 | --- | --- | --- | --- | | | | | | | | | Ironmound----------| 6e | --- | --- | 2.00 | 2.00 | --- | --- | --- | --- | | | | | | | | | MaIG: | | | | | | | | | Masham-------------| 7e | --- | --- | --- | --- | --- | --- | --- | --- | | | | | | | | | Ironmound----------| 7e | --- | --- | --- | --- | --- | --- | --- | --- | | | | | | | | | MinB: | | | | | | | | | Minco--------------| 2e | 3.00 | 45.00 | 5.50 | 6.00 | --- | 5.00 | 5.50 | 30.00 | | | | | | | | | MinC: | | | | | | | | | Minco--------------| 3e | 2.50 | 40.00 | 5.00 | 5.50 | --- | 4.50 | 5.00 | 30.00 | | | | | | | | | MinD: | | | | | | | | | Minco--------------| 4e | 1.50 | 35.00 | 4.50 | 4.00 | --- | 4.00 | 4.50 | 25.00 | | | | | | | | | MinF: | | | | | | | | | Minco--------------| 6e | --- | --- | 4.00 | 3.50 | --- | 3.50 | 4.00 | --- | | | | | | | | | MllA: | | | | | | | | | Miller-------------| 3w | 3.50 | 60.00 | 6.50 | 6.50 | --- | 6.50 | --- | 35.00 | | | | | | | | | MulC: | | | | | | | | | Mulhall------------| 3e | 2.50 | 35.00 | 5.50 | 5.50 | --- | 5.00 | --- | 30.00 | | | | | | | | |
150 Soil Survey Land Capability and Yields per Acre of Crops and Pasture—Continued ___________________________________________________________________________________________________________________ | | | | | | | | | Map symbol | Land |Alfalfa | Grain | Improved |Introduced| Soybeans| Tall | Weeping | Wheat and soil name |capability| hay |sorghum |bermudagrass| bluestem | |wheatgrass|lovegrass| | | | | | | | | | ___________________________________________________________________________________________________________________ | | Tons | Bu | AUM | AUM | Bu | AUM | AUM | Bu ____ __ ___ ___ __ ___ ___ __ | | | | | | | | | MulC2: | | | | | | | | | Mulhall------------| 3e | 1.50 | 30.00 | 5.00 | 5.00 | --- | 4.50 | --- | 25.00 | | | | | | | | | NavA: | | | | | | | | | Navina-------------| 1 | 3.50 | 55.00 | 5.50 | 6.00 | --- | 5.00 | 5.50 | 35.00 | | | | | | | | | NavB: | | | | | | | | | Navina-------------| 2e | 3.00 | 50.00 | 5.50 | 6.00 | --- | 5.00 | 5.50 | 30.00 | | | | | | | | | NeGD4: | | | | | | | | | Newalla------------| 3e | --- | --- | 5.00 | 4.00 | --- | 3.50 | 5.50 | --- | | | | | | | | | Gullied land-------| 8e | --- | --- | --- | --- | --- | --- | --- | --- | | | | | | | | | NewB: | | | | | | | | | Newalla------------| 3s | 1.50 | 45.00 | 5.00 | 5.00 | --- | 3.50 | 5.50 | 25.00 | | | | | | | | | NorA: | | | | | | | | | Norge--------------| 1 | 3.50 | 55.00 | 5.50 | 6.00 | --- | 5.00 | 5.50 | 35.00 | | | | | | | | | NorB: | | | | | | | | | Norge--------------| 2e | 3.00 | 50.00 | 5.50 | 6.00 | --- | 5.00 | 5.50 | 30.00 | | | | | | | | | NorC2: | | | | | | | | | Norge--------------| 3e | 1.50 | 35.00 | 4.50 | 5.00 | --- | 4.00 | 4.50 | 25.00 | | | | | | | | | OWHD: | | | | | | | | | Oil waste land-----| 8s | --- | --- | --- | 2.00 | --- | 1.50 | --- | --- | | | | | | | | | Huska--------------| 4s | --- | --- | 3.00 | --- | --- | --- | --- | --- | | | | | | | | | PieB: | | | | | | | | | Piedmont-----------| 2e | 1.50 | 30.00 | 4.00 | 4.50 | --- | 3.50 | --- | 25.00 | | | | | | | | | PieC2: | | | | | | | | | Piedmont-----------| 3e | --- | 25.00 | 3.50 | 4.00 | --- | 3.00 | --- | 15.00 | | | | | | | | | PIT: | | | | | | | | | Pits---------------| 8s | --- | --- | --- | --- | --- | --- | --- | --- | | | | | | | | | PukA: | | | | | | | | | Pulaski------------| 5w | --- | --- | 7.00 | 6.00 | --- | 6.00 | --- | --- | | | | | | | | | PulA: | | | | | | | | | Pulaski------------| 2w | 3.50 | 50.00 | 7.00 | 6.00 | --- | 6.00 | --- | 30.00 | | | | | | | | |
Logan County, Oklahoma 151 Land Capability and Yields per Acre of Crops and Pasture—Continued ___________________________________________________________________________________________________________________ | | | | | | | | | Map symbol | Land |Alfalfa | Grain | Improved |Introduced| Soybeans| Tall | Weeping | Wheat and soil name |capability| hay |sorghum |bermudagrass| bluestem | |wheatgrass|lovegrass| | | | | | | | | | ___________________________________________________________________________________________________________________ | | Tons | Bu | AUM | AUM | Bu | AUM | AUM | Bu ____ __ ___ ___ __ ___ ___ __ | | | | | | | | | RenB: | | | | | | | | | Renfrow------------| 2e | 2.00 | 35.00 | 3.00 | 5.00 | --- | 2.50 | --- | 30.00 | | | | | | | | | RenC: | | | | | | | | | Renfrow------------| 3e | 1.50 | 30.00 | 2.50 | 4.50 | --- | 2.00 | --- | 25.00 | | | | | | | | | RewC2: | | | | | | | | | Renfrow------------| 3e | 1.50 | 20.00 | 2.50 | 4.00 | --- | 2.00 | --- | 25.00 | | | | | | | | | RinB: | | | | | | | | | Renthin------------| 2e | 2.00 | 35.00 | 3.00 | 5.00 | --- | 2.50 | --- | 30.00 | | | | | | | | | RnnC2: | | | | | | | | | Renthin------------| 3e | 1.50 | 20.00 | 2.50 | 4.00 | --- | 2.00 | --- | --- | | | | | | | | | SDGD4: | | | | | | | | | Stephenville-------| 4e | --- | --- | 3.00 | 2.00 | --- | 2.00 | 4.00 | 25.00 | | | | | | | | | Darsil-------------| 6e | --- | --- | 1.50 | 1.50 | --- | 1.50 | 2.00 | --- | | | | | | | | | Gullied land-------| 8e | --- | --- | --- | --- | --- | --- | --- | --- | | | | | | | | | SDND: | | | | | | | | | Stephenville-------| 4e | --- | --- | 3.50 | 3.50 | --- | 2.00 | 4.00 | --- | | | | | | | | | Darsil-------------| 6e | --- | --- | 2.00 | 2.00 | --- | 1.50 | 2.50 | --- | | | | | | | | | Newalla------------| 4e | --- | --- | 4.50 | 4.50 | --- | 3.00 | 5.00 | --- | | | | | | | | | SDND2: | | | | | | | | | Stephenville-------| 4e | --- | --- | 3.00 | 3.00 | --- | 2.00 | 4.00 | --- | | | | | | | | | Darsil-------------| 6e | --- | --- | 1.50 | 1.50 | --- | 1.50 | 2.00 | --- | | | | | | | | | Newalla------------| 6e | --- | --- | 4.00 | 4.00 | --- | 2.50 | 4.50 | --- | | | | | | | | | SlaB: | | | | | | | | | Slaughterville-----| 2e | 3.00 | 45.00 | 5.00 | 4.50 | --- | 4.00 | 5.50 | 30.00 | | | | | | | | | SlaD: | | | | | | | | | Slaughterville-----| 4e | 2.00 | 35.00 | 4.00 | 3.50 | --- | 3.50 | 4.50 | 20.00 | | | | | | | | | SlaF: | | | | | | | | | Slaughterville-----| 6e | --- | --- | 3.50 | 3.00 | --- | 2.00 | 4.00 | --- | | | | | | | | |
152 Soil Survey Land Capability and Yields per Acre of Crops and Pasture—Continued ___________________________________________________________________________________________________________________ | | | | | | | | | Map symbol | Land |Alfalfa | Grain | Improved |Introduced| Soybeans| Tall | Weeping | Wheat and soil name |capability| hay |sorghum |bermudagrass| bluestem | |wheatgrass|lovegrass| | | | | | | | | | ___________________________________________________________________________________________________________________ | | Tons | Bu | AUM | AUM | Bu | AUM | AUM | Bu ____ __ ___ ___ __ ___ ___ __ | | | | | | | | | StDC: | | | | | | | | | Stephenville-------| 3e | 1.50 | 35.00 | 4.00 | 4.00 | 15.00 | 2.50 | 4.50 | 25.00 | | | | | | | | | Darsil-------------| 4e | --- | 20.00 | 2.50 | 2.50 | --- | 2.00 | 3.00 | 12.00 | | | | | | | | | StDC2: | | | | | | | | | Stephenville-------| 3e | 1.00 | 30.00 | 3.50 | 3.50 | 15.00 | 2.00 | 4.50 | 20.00 | | | | | | | | | Darsil-------------| 4e | --- | 20.00 | 2.00 | 2.00 | --- | 1.50 | 2.50 | 12.00 | | | | | | | | | StDE: | | | | | | | | | Stephenville-------| 6e | --- | --- | 3.00 | 3.00 | --- | 2.00 | 3.50 | --- | | | | | | | | | Darsil-------------| 6e | --- | --- | 2.00 | 2.00 | --- | --- | 2.50 | --- | | | | | | | | | SteB: | | | | | | | | | Stephenville-------| 2e | 2.50 | 45.00 | 4.50 | 4.50 | 20.00 | 3.00 | 5.00 | 30.00 | | | | | | | | | SteC2: | | | | | | | | | Stephenville-------| 3e | 1.50 | 30.00 | 3.50 | 3.50 | 15.00 | 2.00 | 4.50 | 20.00 | | | | | | | | | SUND: | | | | | | | | | Stephenville-------| 4e | --- | --- | --- | --- | --- | --- | --- | --- | | | | | | | | | Urban land---------| 8s | --- | --- | --- | --- | --- | --- | --- | --- | | | | | | | | | Newalla------------| 4e | --- | --- | --- | --- | --- | --- | --- | --- | | | | | | | | | TelB: | | | | | | | | | Teller-------------| 2e | 3.00 | 50.00 | 5.50 | 6.00 | --- | 6.00 | 5.50 | 35.00 | | | | | | | | | TelC2: | | | | | | | | | Teller-------------| 3e | 1.50 | 35.00 | 4.50 | 5.00 | --- | 4.50 | 4.50 | 20.00 | | | | | | | | | TriA: | | | | | | | | | Tribbey------------| 5w | --- | --- | 6.00 | 3.00 | --- | 7.00 | --- | --- | | | | | | | | | URB: | | | | | | | | | Urban land---------| 8s | --- | --- | --- | --- | --- | --- | --- | --- | | | | | | | | | W. | | | | | | | | | Water | | | | | | | | | | | | | | | | | | YaaA, YahA: | | | | | | | | | Yahola-------------| 2w | 3.50 | 50.00 | 7.00 | 5.50 | --- | 7.00 | --- | 30.00 | | | | | | | | |
Logan County, Oklahoma 153 Land Capability and Yields per Acre of Crops and Pasture—Continued ___________________________________________________________________________________________________________________ | | | | | | | | | Map symbol | Land |Alfalfa | Grain | Improved |Introduced| Soybeans| Tall | Weeping | Wheat and soil name |capability| hay |sorghum |bermudagrass| bluestem | |wheatgrass|lovegrass| | | | | | | | | | ___________________________________________________________________________________________________________________ | | Tons | Bu | AUM | AUM | Bu | AUM | AUM | Bu ____ __ ___ ___ __ ___ ___ __ | | | | | | | | | ZaHC: | | | | | | | | | Zaneis-------------| 3e | 1.50 | 35.00 | 5.00 | 5.50 | --- | 4.00 | 5.00 | 20.00 | | | | | | | | | Huska--------------| 4s | --- | 25.00 | 3.00 | 2.50 | --- | 1.50 | --- | 15.00 | | | | | | | | | ZanB: | | | | | | | | | Zaneis-------------| 2e | 2.50 | 40.00 | 5.50 | 6.00 | --- | 5.00 | 5.50 | 30.00 | | | | | | | | | ZanC: | | | | | | | | | Zaneis-------------| 3e | 1.50 | 35.00 | 5.00 | 5.50 | --- | 4.50 | 5.00 | 25.00 | | | | | | | | | ZanC2: | | | | | | | | | Zaneis-------------| 3e | 1.00 | 30.00 | 4.50 | 3.00 | --- | 4.00 | 4.50 | 20.00 | | | | | | | | | ___________________________________________________________________________________________________________________
154 Soil Survey

Estimated Yields of Crops and Pasture

The average yields per acre that can be expected of the principal crops under a

high level of management are shown in the table “Land Capability and Yields per Acre

of Crops and Pasture.” In any given year, yields may be higher or lower than those

indicated in the table because of variations in rainfall and other climatic factors.

The yields are based mainly on the experience and records of farmers,

conservationists, and extension agents. Available yield data from nearby counties and

results of field trials and demonstrations are also considered.

The management needed to obtain the indicated yields of the various crops

depends on the kind of soil and the crop. Management can include drainage, erosion

control, and protection from flooding; the proper planting and seeding rates; suitable

high-yielding crop varieties; appropriate and timely tillage; control of weeds, plant

diseases, and harmful insects; favorable soil reaction and optimum levels of nitrogen,

phosphorus, potassium, and trace elements for each crop; effective use of crop

residue, barnyard manure, and green manure crops; and harvesting that ensures the

smallest possible loss.

The estimated yields reflect the productive capacity of each soil for each of the

principal crops. Yields are likely to increase as new production technology is

developed. The productivity of a given soil compared with that of other soils, however,

is not likely to change.

Crops other than those shown in the table are grown in the survey area, but

estimated yields are not listed because the acreage of such crops is small.

Under good pasture management, proper grazing is essential for the production of

high-quality forage, stand survival, and erosion control. Proper grazing helps plants to

maintain sufficient and generally vigorous top growth during the growing season.

Brush control is essential in many areas, and weed control generally is needed.

Rotation grazing and renovation also are important management practices.

A pasture program is needed to provide the desired amount of forage during each

month of the year. A study of the growth habits of the different plants is necessary to

ensure adequate forage during each month. The months that various kinds of forage

plants grow are indicated in figure 16, which is in the “Range” section. The percent

growth that can be safely grazed each month without substantially reducing the total

yield for each kind of plant is illustrated.

Yield estimates are often indicated in animal unit months (AUM), or the amount of

forage or feed required to feed one animal unit (one cow, one horse, one mule, five

sheep, or five goats) for 30 days.

The local office of the Natural Resources Conservation Service or of the

Cooperative Extension Service can provide information about forage yields other than

those shown in the table.

Cropland Limitations and Hazards

The management concerns affecting the use of the detailed map units in the survey

area for crops are shown in the table “Cropland Limitations and Hazards.” The main

concerns in managing nonirrigated cropland are conserving moisture, controlling soil

blowing and water erosion, and maintaining soil fertility and tilth.

Conserving moisture primarily involves reducing the evaporation and runoff rates

and increasing the rate of water infiltration. Applying conservation tillage and

conservation cropping systems, farming on the contour, stripcropping, establishing

field windbreaks, and leaving crop residue on the surface conserve moisture.

Generally, a combination of several practices is needed to control soil blowing and

water erosion. Conservation tillage, stripcropping, field windbreaks, tall grass barriers,
Logan County, Oklahoma 155

contour farming, conservation cropping systems, crop residue management,

diversions, and grassed waterways help to prevent excessive soil loss.

Measures that are effective in maintaining soil fertility include applying fertilizer, both

organic and inorganic, including manure; incorporating crop residue or green manure

crops into the soil; and using proper crop rotations. Controlling erosion helps to

prevent the loss of organic matter and plant nutrients and thus helps to maintain

productivity, although the level of fertility can be reduced even in areas where erosion

is controlled. All soils used for nonirrigated crops respond well to applications of

fertilizer.

On irrigated soils the main management concerns are efficient water use, nutrient

management, control of erosion, soil tilth, pest and weed control, and timely planting

and harvesting for a successful crop. An irrigation system that provides optimum

control and distribution of water at minimum cost is needed. Overirrigation wastes

water, leaches plant nutrients, and causes erosion. Also, it can create drainage

problems, raise the water table, and increase soil salinity.

Some of the limitations and hazards shown in the table cannot be easily overcome.

These are channels, flooding, depth to bedrock, ponding, gullies, and lack of timely

precipitation.

Additional limitations and hazards are as follows:

Areas of rock outcrop and oil waste land.—Farming around these areas may be

feasible. Subsoiling or deep ripping soft sedimentary beds increases the effective

rooting depth and the rate of water infiltration.

Excessive permeability.—This limitation causes deep leaching of nutrients and

pesticides. The capacity of the soil to retain moisture for plant use is poor.

Potential for ground-water pollution.—This is a hazard in soils with excessive

permeability, hard bedrock, or a water table within the profile.

Lime content, limited available water capacity, poor tilth, restricted permeability, and

surface crusting.—The adverse effects of these limitations can be reduced by

incorporating green manure crops, manure, or crop residue into the soil; applying a

system of conservation tillage; and using conservation cropping systems. Also, crops

may respond well to additions of phosphate fertilizer on soils that have a high content

of lime.

Surface rock fragments.—This limitation causes rapid wear of tillage equipment. It

cannot be easily overcome.

Slope.—Where the slope is more than 8 percent, water erosion and soil blowing

may be accelerated unless conservation farming practices are applied.

Surface stones.—Stones or boulders on the surface can hinder normal tillage

unless they are removed.

Salt and sodium content.—In areas where this is a limitation, only salt- and sodiumtolerant crops should be grown.

Criteria for Limitations and Hazards

Following are explanations of the criteria used to determine the limitations or

hazards.

Areas of rock outcrop.—Rock outcrop is a named component of the map unit.

Areas of rubble land.—Rubble land is a named component of the map unit.

Areas of oil waste land.—Oil waste land is a named component of the map unit.

Channeled.—The word “channeled” is included in the name of the map unit.

Depth to bedrock.—Bedrock is within a depth of 40 inches.

Water erosion.—The surface K factor multiplied by the upper slope limit is more

than 2 (same as prime farmland criteria).

Excessive permeability.—The upper limit of the permeability range is 6 inches or

more within the soil profile.
156 Soil Survey

Flooding.—The component of the map unit is occasionally flooded or frequently

flooded.

Gullied.—The word “gullied” is included in the name of the map unit.

Lime content.—The surface layer has more than 5 percent calcium carbonate

equivalent or has a wind erodibility group of 4L.

Limited available water capacity.—The available water capacity calculated to a

depth of 60 inches or to a root-limiting layer is 6 inches or less.

Ponding.—A ponding duration is assigned to the component of the map unit.

Potential for ground-water pollution.—The soil has a water table within a depth of 4

feet or bedrock within 40 inches of the surface, or permeability is more than 2 inches

per hour within the soil profile.

Poor tilth.—The component of the map unit has more than 35 percent clay in the

surface layer.

Restricted permeability.—Permeability is 0.06 inch per hour or less within the soil

profile.

Salt content.—The component of the map unit has an electrical conductivity of more

than 4 in the surface layer or more than 8 within a depth of 30 inches.

Slope.—The upper slope limit of the component of the map unit is more than 8

percent.

Sodium content.—The sodium adsorption ratio of the component of the map unit is

more than 13 within a depth of 30 inches.

Soil blowing.—The wind erodibility index is equal to or greater than 8.

Surface rock fragments.—The terms describing the texture of the surface layer

include any rock fragment modifier except for gravelly or channery.

Surface crusting.—The organic matter content is less than 2 percent in the surface

layer.

Surface stones.—The terms describing the texture of the surface layer include any

stony or bouldery modifier, or the map unit is a stony or bouldery phase.

Water table.—The component of the map unit has a water table within a depth of 3

feet.
Logan County, Oklahoma 157

Cropland Limitations and Hazards

(See text for a description and criteria of the limitations and hazards

 listed in this table)

_____________________________________________________________________________

 |

 Map symbol and component name | Cropland limitations and hazards

 | _____________________________________________________________________________

 |

AspA, AstA: |

 Ashport--------------------------------|Flooding

 |

BetA, BetB: |

 Bethany--------------------------------|None

 |

BocA: |

 Bocox----------------------------------|Ponding

 |Excessive permeability

 |Potential for ground-water pollution

 |Water table

 |

BtlA: |

 Bathel---------------------------------|Ponding

 |Excessive permeability

 |Potential for ground-water pollution

 |Water table

 |

CaaA: |

 Canadian-------------------------------|Excessive permeability

 |Potential for ground-water pollution

 |

CAID: |

 Coyle----------------------------------|Depth to bedrock

 |Restricted permeability

 |

 Ashport--------------------------------|Flooding

 |

 Ironmound------------------------------|Water erosion

 |Depth to bedrock

 |Restricted permeability

 |Limited available water capacity

 |

CoIC2: |

 Coyle----------------------------------|Depth to bedrock

 |Restricted permeability

 |

 Ironmound------------------------------|Depth to bedrock

 |Restricted permeability

 |Limited available water capacity

 |

CoUB: |

 Coyle----------------------------------|Depth to bedrock

 |Restricted permeability

 |Limited available water capacity

 |

 Urban land-----------------------------|Non-soil material

 |

CoUC: |

 Coyle----------------------------------|Depth to bedrock

 |Restricted permeability

 |Limited available water capacity

 |

 Urban land-----------------------------|Non-soil material

 |

CoyB, CoyC2: |

 Coyle----------------------------------|Depth to bedrock

 |Restricted permeability

 |Limited available water capacity

 |
158 Soil Survey

Cropland Limitations and Hazards—Continued

_____________________________________________________________________________

 |

 Map symbol and component name | Cropland limitations and hazards

 | _____________________________________________________________________________

 |

CoZC3: |

 Coyle----------------------------------|Depth to bedrock

 |Restricted permeability

 |Limited available water capacity

 |

 Zaneis---------------------------------|Restricted permeability

 |

DAM: |

 Dam------------------------------------|Non-soil material

 |

DerB, DerD: |

 Derby----------------------------------|Excessive permeability

 |Potential for ground-water pollution

 |

DerE: |

 Derby----------------------------------|Water erosion

 |Excessive permeability

 |Potential for ground-water pollution

 |Slope

 |

DiRG: |

 Darsil---------------------------------|Soil blowing

 |Water erosion

 |Depth to bedrock

 |Excessive permeability

 |Potential for ground-water pollution

 |Limited available water capacity

 |Slope

 |

 Rock outcrop---------------------------|Non-soil material

 |

DouB, DouD: |

 Dougherty------------------------------|Potential for ground-water pollution

 |

DUM: |

 Dumps----------------------------------|Non-soil material

 |

EasA: |

 Easpur---------------------------------|Flooding

 |

GadA: |

 Gaddy----------------------------------|Flooding

 |Excessive permeability

 |Potential for ground-water pollution

 |

GaGA: |

 Gaddy----------------------------------|Flooding

 |Excessive permeability

 |Potential for ground-water pollution

 |Surface crusting

 |

 Gracemore------------------------------|Flooding

 |Excessive permeability

 |Potential for ground-water pollution

 |Water table

 |Surface crusting

 |

GMGE4: |

 Grainola-------------------------------|Water erosion

 |Depth to bedrock

 |Restricted permeability

 |Slope

 |Surface crusting

 |Poor tilth
Logan County, Oklahoma 159

Cropland Limitations and Hazards—Continued

_____________________________________________________________________________

 |

 Map symbol and component name | Cropland limitations and hazards

 | _____________________________________________________________________________

 |

GMGE4: |

 Masham---------------------------------|Soil blowing

 |Water erosion

 |Depth to bedrock

 |Restricted permeability

 |Limited available water capacity

 |Slope

 |Surface crusting

 |Lime content

 |Poor tilth

 |

 Gullied land---------------------------|Non-soil material

 |

GMLG: |

 Grainola-------------------------------|Water erosion

 |Depth to bedrock

 |Restricted permeability

 |Limited available water capacity

 |Slope

 |Poor tilth

 |

 Masham---------------------------------|Soil blowing

 |Water erosion

 |Depth to bedrock

 |Restricted permeability

 |Limited available water capacity

 |Slope

 |Surface crusting

 |Lime content

 |Poor tilth

 |

 Lucien---------------------------------|Water erosion

 |Depth to bedrock

 |Restricted permeability

 |Potential for ground-water pollution

 |Limited available water capacity

 |Slope

 |

GohC: |

 Goodnight------------------------------|Excessive permeability

 |Potential for ground-water pollution

 |

GohE: |

 Goodnight------------------------------|Water erosion

 |Excessive permeability

 |Potential for ground-water pollution

 |Slope

 |

GooE, GooG: |

 Goodnight------------------------------|Soil blowing

 |Water erosion

 |Excessive permeability

 |Potential for ground-water pollution

 |Slope

 |

GraC: |

 Grainola-------------------------------|Depth to bedrock

 |Restricted permeability

 |Surface crusting

 |Poor tilth

 |
160 Soil Survey

Cropland Limitations and Hazards—Continued

_____________________________________________________________________________

 |

 Map symbol and component name | Cropland limitations and hazards

 | _____________________________________________________________________________

 |

GraD2: |

 Grainola-------------------------------|Water erosion

 |Depth to bedrock

 |Restricted permeability

 |Surface crusting

 |Poor tilth

 |

GrHC: |

 Grant----------------------------------|Restricted permeability

 |

 Huska----------------------------------|Water erosion

 |Restricted permeability

 |Sodium content

 |Salt content

 |Limited available water capacity

 |Surface crusting

 |Poor tilth

 |

GrIE: |

 Grainola-------------------------------|Water erosion

 |Depth to bedrock

 |Restricted permeability

 |Slope

 |Surface crusting

 |

 Ironmound------------------------------|Soil blowing

 |Water erosion

 |Depth to bedrock

 |Restricted permeability

 |Limited available water capacity

 |Slope

 |

GrLE: |

 Grainola-------------------------------|Water erosion

 |Depth to bedrock

 |Restricted permeability

 |Limited available water capacity

 |Slope

 |Surface crusting

 |

 Lucien---------------------------------|Water erosion

 |Depth to bedrock

 |Restricted permeability

 |Potential for ground-water pollution

 |Limited available water capacity

 |Slope

 |

HaGD4: |

 Harrah---------------------------------|Potential for ground-water pollution

 |

 Gullied land---------------------------|Non-soil material

 |

HarC, HarC2: |

 Harrah---------------------------------|Potential for ground-water pollution

 |

HarG: |

 Harrah---------------------------------|Water erosion

 |Potential for ground-water pollution

 |Slope

 |

HawB: |

 Hawley---------------------------------|Excessive permeability

 |Potential for ground-water pollution

 |
Logan County, Oklahoma 161

Cropland Limitations and Hazards—Continued

_____________________________________________________________________________

 |

 Map symbol and component name | Cropland limitations and hazards

 | _____________________________________________________________________________

 |

ICGD3: |

 Ironmound------------------------------|Soil blowing

 |Water erosion

 |Depth to bedrock

 |Restricted permeability

 |Potential for ground-water pollution

 |Limited available water capacity

 |

 Coyle----------------------------------|Water erosion

 |Depth to bedrock

 |Restricted permeability

 |

 Grainola-------------------------------|Water erosion

 |Depth to bedrock

 |Restricted permeability

 |Limited available water capacity

 |Surface crusting

 |Poor tilth

 |

IrCE: |

 Ironmound------------------------------|Soil blowing

 |Water erosion

 |Depth to bedrock

 |Restricted permeability

 |Potential for ground-water pollution

 |Limited available water capacity

 |Slope

 |

 Coyle----------------------------------|Water erosion

 |Depth to bedrock

 |Restricted permeability

 |Limited available water capacity

 |Slope

 |

IroC2: |

 Ironmound------------------------------|Depth to bedrock

 |Restricted permeability

 |Limited available water capacity

 |

KgfB: |

 Kingfisher-----------------------------|Depth to bedrock

 |Restricted permeability

 |

KinC2: |

 Kingfisher-----------------------------|Depth to bedrock

 |Restricted permeability

 |Limited available water capacity

 |

KonB, KonD2: |

 Konawa---------------------------------|Potential for ground-water pollution

 |

KrdA: |

 Kirkland-------------------------------|Restricted permeability

 |Surface crusting

 |

KrkB: |

 Kirkland-------------------------------|Restricted permeability

 |

LarA: |

 Lawrie---------------------------------|Flooding

 |

LawA: |

 Lawrie---------------------------------|None
162 Soil Survey

Cropland Limitations and Hazards—Continued

_____________________________________________________________________________

 |

 Map symbol and component name | Cropland limitations and hazards

 | _____________________________________________________________________________

 |

LerA: |

 Lebron---------------------------------|Flooding

 |Ponding

 |Excessive permeability

 |Restricted permeability

 |Potential for ground-water pollution

 |Water table

 |Poor tilth

 |

LitB, LitC2: |

 Littleaxe------------------------------|Potential for ground-water pollution

 |

M-W: |

 Miscellaneous water--------------------|Non-soil material

 |

MaID, MaIG: |

 Masham---------------------------------|Soil blowing

 |Water erosion

 |Depth to bedrock

 |Restricted permeability

 |Limited available water capacity

 |Slope

 |Surface crusting

 |Lime content

 |Poor tilth

 |

 Ironmound------------------------------|Water erosion

 |Depth to bedrock

 |Restricted permeability

 |Limited available water capacity

 |Slope

 |

MinB, MinC: |

 Minco----------------------------------|None

 |

MinD: |

 Minco----------------------------------|Water erosion

 |

MinF: |

 Minco----------------------------------|Water erosion

 |Slope

 |

MllA: |

 Miller---------------------------------|Flooding

 |Restricted permeability

 |Poor tilth

 |

MulC, MulC2: |

 Mulhall--------------------------------|None

 |

NavA, NavB: |

 Navina---------------------------------|None

 |

NeGD4: |

 Newalla--------------------------------|Water erosion

 |Restricted permeability

 |

 Gullied land---------------------------|Non-soil material

 |

NewB: |

 Newalla--------------------------------|Restricted permeability

 |

NorA, NorB, NorC2: |

 Norge----------------------------------|None
Logan County, Oklahoma 163

Cropland Limitations and Hazards—Continued

_____________________________________________________________________________

 |

 Map symbol and component name | Cropland limitations and hazards

 | _____________________________________________________________________________

 |

OWHD: |

 Oil waste land-------------------------|Non-soil material

 |

 Huska----------------------------------|Restricted permeability

 |Sodium content

 |Salt content

 |Surface crusting

 |

PieB: |

 Piedmont-------------------------------|Depth to bedrock

 |Restricted permeability

 |

PieC2: |

 Piedmont-------------------------------|Water erosion

 |Depth to bedrock

 |Restricted permeability

 |Limited available water capacity

 |

PIT: |

 Pits-----------------------------------|Non-soil material

 |

PukA, PulA: |

 Pulaski--------------------------------|Flooding

 |Potential for ground-water pollution

 |Surface crusting

 |

RenB: |

 Renfrow--------------------------------|Restricted permeability

 |

RenC, RewC2: |

 Renfrow--------------------------------|Water erosion

 |Restricted permeability

 |

RinB: |

 Renthin--------------------------------|Restricted permeability

 |

RnnC2: |

 Renthin--------------------------------|Water erosion

 |Restricted permeability

 |

SDGD4: |

 Stephenville---------------------------|Depth to bedrock

 |Potential for ground-water pollution

 |Limited available water capacity

 |Surface crusting

 |

 Darsil---------------------------------|Soil blowing

 |Depth to bedrock

 |Excessive permeability

 |Potential for ground-water pollution

 |Limited available water capacity

 |

 Gullied land---------------------------|Non-soil material

 |

SDND: |

 Stephenville---------------------------|Depth to bedrock

 |Excessive permeability

 |Potential for ground-water pollution

 |Limited available water capacity

 |Surface crusting

 |
164 Soil Survey

Cropland Limitations and Hazards—Continued

_____________________________________________________________________________

 |

 Map symbol and component name | Cropland limitations and hazards

 | _____________________________________________________________________________

 |

SDND: |

 Darsil---------------------------------|Soil blowing

 |Depth to bedrock

 |Excessive permeability

 |Potential for ground-water pollution

 |Limited available water capacity

 |

 Newalla--------------------------------|Water erosion

 |Restricted permeability

 |

SDND2: |

 Stephenville---------------------------|Depth to bedrock

 |Potential for ground-water pollution

 |Limited available water capacity

 |Surface crusting

 |

 Darsil---------------------------------|Soil blowing

 |Depth to bedrock

 |Excessive permeability

 |Potential for ground-water pollution

 |Limited available water capacity

 |

 Newalla--------------------------------|Water erosion

 |Restricted permeability

 |

SlaB, SlaD: |

 Slaughterville-------------------------|Excessive permeability

 |Potential for ground-water pollution

 |

SlaF: |

 Slaughterville-------------------------|Water erosion

 |Excessive permeability

 |Potential for ground-water pollution

 |Slope

 |

StDC: |

 Stephenville---------------------------|Depth to bedrock

 |Excessive permeability

 |Potential for ground-water pollution

 |Limited available water capacity

 |Surface crusting

 |

 Darsil---------------------------------|Soil blowing

 |Depth to bedrock

 |Excessive permeability

 |Potential for ground-water pollution

 |Limited available water capacity

 |

StDC2: |

 Stephenville---------------------------|Depth to bedrock

 |Potential for ground-water pollution

 |Surface crusting

 |

 Darsil---------------------------------|Soil blowing

 |Depth to bedrock

 |Excessive permeability

 |Potential for ground-water pollution

 |Limited available water capacity

 |
Logan County, Oklahoma 165

Cropland Limitations and Hazards—Continued

_____________________________________________________________________________

 |

 Map symbol and component name | Cropland limitations and hazards

 | _____________________________________________________________________________

 |

StDE: |

 Stephenville---------------------------|Water erosion

 |Depth to bedrock

 |Excessive permeability

 |Potential for ground-water pollution

 |Limited available water capacity

 |Slope

 |Surface crusting

 |

 Darsil---------------------------------|Soil blowing

 |Depth to bedrock

 |Excessive permeability

 |Potential for ground-water pollution

 |Limited available water capacity

 |

SteB: |

 Stephenville---------------------------|Depth to bedrock

 |Excessive permeability

 |Potential for ground-water pollution

 |Surface crusting

 |

SteC2: |

 Stephenville---------------------------|Depth to bedrock

 |Potential for ground-water pollution

 |Limited available water capacity

 |Surface crusting

 |

SUND: |

 Stephenville---------------------------|Depth to bedrock

 |Potential for ground-water pollution

 |Limited available water capacity

 |Surface crusting

 |

 Urban land-----------------------------|Non-soil material

 |

 Newalla--------------------------------|Water erosion

 |Restricted permeability

 |

TelB, TelC2: |

 Teller---------------------------------|Potential for ground-water pollution

 |

TriA: |

 Tribbey--------------------------------|Flooding

 |Potential for ground-water pollution

 |Water table

 |Surface crusting

 |

URB: |

 Urban land-----------------------------|Non-soil material

 |

W: |

 Water----------------------------------|Non-soil material

 |

YaaA, YahA: |

 Yahola---------------------------------|Flooding

 |Potential for ground-water pollution

 |Surface crusting

 |
166 Soil Survey

Cropland Limitations and Hazards—Continued

_____________________________________________________________________________

 |

 Map symbol and component name | Cropland limitations and hazards

 | _____________________________________________________________________________

 |

ZaHC: |

 Zaneis---------------------------------|Restricted permeability

 |Potential for ground-water pollution

 |

 Huska----------------------------------|Water erosion

 |Restricted permeability

 |Sodium content

 |Salt content

 |Limited available water capacity

 |Surface crusting

 |Poor tilth

 |

ZanB, ZanC, ZanC2: |

 Zaneis---------------------------------|Restricted permeability

 | _____________________________________________________________________________
Logan County, Oklahoma 167

Prime Farmland

Prime farmland is of major importance in meeting the Nation’s short- and longrange needs for food and fiber. The acreage of high-quality farmland is limited, and the

U.S. Department of Agriculture recognizes that government at local, State, and

Federal levels, as well as individuals, must encourage and facilitate the wise use of our

Nation’s prime farmland.

Prime farmland soils, as defined by the U.S. Department of Agriculture, are soils

that are best suited to food, feed, forage, fiber, and oilseed crops. Such soils have

properties that favor the economic production of sustained high yields of crops. The

soils need only to be treated and managed by acceptable farming methods. An

adequate moisture supply and a sufficiently long growing season are required. Prime

farmland soils produce the highest yields with minimal expenditure of energy and

economic resources, and farming these soils results in the least damage to the

environment (7).

Prime farmland soils may presently be used as cropland, pasture, rangeland, or

woodland or for other purposes. They either are used for food and fiber or are available

for these uses. Urban or built-up land, public land, and water areas cannot be

considered prime farmland. Urban or built-up land is any contiguous unit of land 10

acres or more in size that is used for such purposes as housing, industrial, and

commercial sites, sites for institutions or public buildings, small parks, golf courses,

cemeteries, railroad yards, airports, sanitary landfills, sewage treatment plants, and

water-control structures. Public land is land not available for farming in National

forests, National parks, military reservations, and State parks.

Prime farmland soils commonly receive an adequate and dependable supply of

moisture from precipitation or irrigation. The temperature and growing season are

favorable, and the level of acidity or alkalinity and the content of salts and sodium are

acceptable. The soils have few, if any, rocks and are permeable to water and air. They

are not excessively erodible or saturated with water for long periods, and they are not

frequently flooded during the growing season or are protected from flooding. Slopes

range from 0 to 8 percent.

Soils that have a high water table, are subject to flooding, or are droughty may

qualify as prime farmland where these limitations are overcome by drainage

measures, flood control, or irrigation. Onsite evaluation is necessary to determine the

effectiveness of corrective measures. More information about the criteria for prime

farmland can be obtained at the local office of the Natural Resources Conservation

Service.

A recent trend in land use has been the conversion of prime farmland to urban and

industrial uses. The loss of prime farmland to other uses puts pressure on lands that

are less productive than prime farmland.

About 100,000 acres in the survey area, or nearly 21 percent of the total acreage,

meets the requirements for prime farmland. The map units in the survey area that

meet the requirements for prime farmland are listed in the table “Prime Farmland.” The

location of each map unit is shown on the detailed soil maps. The soil qualities that

affect use and management are described in the section “Detailed Soil Map Units.”

This list does not constitute a recommendation for a particular land use.
168 Soil Survey

Prime Farmland

(Only the soils considered prime farmland are listed. Urban or built-up areas of the soils listed are

 not considered prime farmland)

_______________________________________________________________________________________________________

 |

 Map | Soil name

symbol |

 | _______________________________________________________________________________________________________

 |

AspA |Ashport silt loam, 0 to 1 percent slopes, occasionally flooded

BetA |Bethany silt loam, 0 to 1 percent slopes

BetB |Bethany silt loam, 1 to 3 percent slopes

BtlA |Bathel loamy sand, 0 to 1 percent slopes

CaaA |Canadian fine sandy loam, 0 to 1 percent slopes, rarely flooded

CoyB |Coyle loam, 1 to 3 percent slopes

EasA |Easpur loam, 0 to 1 percent slopes, occasionally flooded

GraC |Grainola silty clay loam, 3 to 5 percent slopes

HarC |Harrah fine sandy loam, 3 to 5 percent slopes

HarC2 |Harrah fine sandy loam, 3 to 5 percent slopes, eroded

HawB |Hawley loamy fine sand, 0 to 3 percent slopes, rarely flooded

KgfB |Kingfisher silt loam, 1 to 3 percent slopes

KrdA |Kirkland silt loam, 0 to 1 percent slopes

KrkB |Kirkland silty clay loam, 1 to 3 percent slopes

LarA |Lawrie silt loam, 0 to 1 percent slopes, occasionally flooded

LawA |Lawrie loam, 0 to 1 percent slopes, rarely flooded

LitB |Littleaxe fine sandy loam, 1 to 3 percent slopes

MinB |Minco very fine sandy loam, 1 to 3 percent slopes

MinC |Minco very fine sandy loam, 3 to 5 percent slopes

MllA |Miller silty clay, 0 to 1 percent slopes, occasionally flooded

MulC |Mulhall loam, 3 to 5 percent slopes

MulC2 |Mulhall loam, 3 to 5 percent slopes, eroded

NavA |Navina fine sandy loam, 0 to 1 percent slopes

NavB |Navina fine sandy loam, 1 to 3 percent slopes

NewB |Newalla fine sandy loam, 1 to 3 percent slopes

NorA |Norge silt loam, 0 to 1 percent slopes

NorB |Norge silt loam, 1 to 3 percent slopes

NorC2 |Norge silt loam, 3 to 5 percent slopes, eroded

PieB |Piedmont silty clay loam, 1 to 3 percent slopes

PieC2 |Piedmont silty clay loam, 3 to 5 percent slopes, eroded

PulA |Pulaski fine sandy loam, 0 to 1 percent slopes, occasionally flooded

RenB |Renfrow silt loam, 1 to 3 percent slopes

RinB |Renthin silt loam, 1 to 3 percent slopes

RnnC2 |Renthin silty clay loam, 3 to 5 percent slopes, eroded

SlaB |Slaughterville fine sandy loam, 1 to 3 percent slopes

StDC |Stephenville-Darsil complex, 1 to 5 percent slopes

SteB |Stephenville fine sandy loam, 1 to 3 percent slopes

SteC2 |Stephenville fine sandy loam, 3 to 5 percent slopes, eroded

TelB |Teller loam, 1 to 3 percent slopes

TelC2 |Teller loam, 3 to 5 percent slopes, eroded

YaaA |Yahola loam, 0 to 1 percent slopes, occasionally flooded

YahA |Yahola fine sandy loam, 0 to 1 percent slopes, occasionally flooded

ZanB |Zaneis loam, 1 to 3 percent slopes

ZanC |Zaneis loam, 3 to 5 percent slopes

ZanC2 |Zaneis loam, 3 to 5 percent slopes, eroded

 | _______________________________________________________________________________________________________
Logan County, Oklahoma 169

Range

Mark Moseley, Range Conservationist, Natural Resources Conservation Service, helped prepare this

section.

Range, grazed forestland, and native pasture provide forage for livestock in the

survey area.

Range is defined as land on which the native vegetation (the climax, or natural

potential, plant community) is predominantly grasses, grass-like plants, forbs, and

shrubs suitable for grazing and browsing. Range includes natural grasslands,

savannahs, many wetlands, some deserts, tundra, and certain shrub and forb

communities. Range receives no regular or frequent cultural treatment. The

composition and production of the plant community are determined by soil, climate,

topography, overstory canopy, and grazing management.

Grazed forestland is defined as land on which the understory includes, as an

integral part of the forest plant community, plants that can be grazed without significant

impairment of other forest values.

Native pasture is defined as land on which the potential (climax) vegetation is forest

but which is used and managed primarily for the production of native forage plants.

Native pasture includes cutover forestland and forestland that has been cleared and is

managed for native or naturalized forage plants.

The table “Rangeland Productivity and Characteristic Plant Communities” shows,

for each soil, the ecological site; the total annual production of vegetation in favorable,

normal, and unfavorable years; the characteristic vegetation; and the average

percentage of each species.

Rangeland makes up about 40 percent of Logan County. It is mainly on gently

sloping to steep side slopes and a few narrow, very gently sloping to sloping summits

that cannot be economically cultivated. A few native grass meadows that are managed

for hay production are in the central and north-central parts of the county.

Logan County has three distinct types of rangeland. The first type is in the

southeastern part of the county, in areas where most of the soils are loamy and are

moderately deep or shallow over sandstone. These soils support an oak savannah that

has low productivity due to the shallow rooting depth and low water-holding capacity.

The second type is in the northeastern and western parts of the county, in areas

where the soils are loamy and are dominantly moderately deep, with some shallow

and deep soils, over shale and shale interbedded with sandstone. These soils support

mid and tall grasses, and productivity is moderate.

The third type is in the north-central, central, and south-central parts of the county,

in areas where the soils are loamy and are moderately deep, with some shallow and

deep soils, over sandstone and sandstone interbedded with shale. The soils support

tall and mid grasses that are moderately productive.

Approximately 75 percent of the annual production on rangeland grows in April,

May, and June, responding to spring rains and moderate temperatures. A secondary

growth period generally occurs in September and October, coinciding with fall rains

and cooling temperatures.

Most of the local ranches and livestock farms are cow-calf operations. There are

some pure stocker enterprises and some ranchers that diversify their cow-calf

operation with stockers in order to provide greater flexibility.

Several livestock operations supplement the grazing of native rangeland with

introduced grasses such as bermudagrass and plains bluestem. Forage crops are also

used. Protein, hay, and small grain crops are used to supplement livestock through

winter.

Droughts occur in varying lengths. Short-term summer droughts are common, and

longer periods of drought, some lasting several months, also occur frequently.

The pre-settlement vegetation evolved with periodic natural fires, droughts,
170 Soil Survey

migratory grazing by bison, and the impact from many other wildlife species. The bison

heavily impacted an area and then moved to other grazing range.

Early settlement brought continuous grazing and eliminated much of the highquality vegetation on some range sites. Areas that were once open savannah range

sites with a mixture of grasses, forbs, and scattered trees are now covered with oak, a

few tall and mid grasses, and low successional grasses and forbs. Some prairie sites

are now producing low successional grasses and forbs instead of tall grasses. The

amount of forage currently produced may be less than half of that originally produced.

Eastern redcedar has increased significantly on some sites due to the lack of prairie

fires.

Remnants of the original plant species, however, are still found on most rangeland.

Progressive grazing management can allow these high-quality plants to reestablish

without reseeding.

An ecological site for rangeland is a distinctive kind of land with specific physical

characteristics that make it different from other sites in its ability to produce a

distinctive kind and amount of vegetation.

Many different ecological sites are in the survey area. Over time, the combination of

plants best suited to a particular soil and climate becomes dominant. If the soil is not

excessively disturbed, this group of plants is the natural plant community for the site.

Natural plant communities are not static but vary slightly from year to year and place to

place.

The relationship between soils and vegetation was ascertained during this survey;

thus, ecological sites generally can be determined directly from the soil map. Soil

properties that affect moisture supply and plant nutrients have the greatest influence

on the productivity of range plants. Soil reaction, salt content, and a seasonal high

water table are also important. The “Field Office Technical Guide,” which is available at

the local office of the Natural Resources Conservation Service, can provide specific

information about ecological sites.

Total dry-weight production is the amount of vegetation that can be expected to

Figure 16.—Typical growth curves for various kinds of forage in Logan County. The growth curve

for each kind of forage indicates the percentage of the total annual growth that occurs each

month.
Logan County, Oklahoma 171

grow annually on well managed rangeland. It includes all vegetation, whether or not it

is palatable to grazing animals. It includes the current year’s growth of leaves, twigs,

and fruit of woody plants. It does not include the increase in stem diameter of trees

and shrubs. It is expressed in pounds per acre of air-dry vegetation for favorable,

normal, and unfavorable years. In a favorable year, the amount and distribution of

precipitation and the temperatures make growing conditions substantially better than

average. In a normal year, growing conditions are near the historical monthly average.

In an unfavorable year, growing conditions are well below average, generally because

of low available soil moisture. Figure 16 shows a typical growth curve for native

vegetation and other forage that represents the percentage of total growth that occurs

each month.

Dry weight is the total annual yield per acre of air-dry vegetation. Yields are

adjusted to a percent of air-dry moisture content. The relationship of green weight to

air-dry weight varies according to such factors as stage of maturity, exposure, amount

of shade, recent rains, and unseasonable dry periods.

Characteristic vegetation consists of the grasses, forbs, and shrubs that make up

most of the potential natural plant community on each soil. The plants are listed by

common name. In the composition column, the anticipated percentage of the total

annual production is given for each species making up the characteristic vegetation.

The amount that can be used as forage depends on the kinds of grazing animals and

on the grazing season.
172 Soil Survey Rangeland Productivity and Characteristic Plant Communities _____________________________________________________________________________________________________________________________________ Map symbol | | Total dry-weight production | | Rangeland ___________________________________ and soil name | Ecological site | Favorable | Normal |Unfavorable| Characteristic vegetation | composition | | year | year | year | | _____________________________________________________________________________________________________________________________________ | | Lb/acre | Lb/acre | Lb/acre | | Pct _______ _______ _______ __

_

 | | | | | |AspA, AstA: | | | | | | Ashport-----------------|Loamy Bottomland | 8,500 | 6,100 | 4,500 |big bluestem-------------------| 25 | 080AY050OK | | | |indiangrass--------------------| 15 | | | | |miscellaneous perennial grasses| 15 | | | | |switchgrass--------------------| 15 | | | | |little bluestem----------------| 10 | | | | |miscellaneous perennial forbs--| 10 | | | | |eastern gamagrass--------------| 5 | | | | |miscellaneous trees------------| 5 | | | | | |BetA, BetB: | | | | | | Bethany-----------------|Loamy Prairie | 5,500 | 3,850 | 2,750 |little bluestem----------------| 25 | 080AY056OK | | | |big bluestem-------------------| 20 | | | | |indiangrass--------------------| 10 | | | | |switchgrass--------------------| 10 | | | | |blue grama---------------------| 5 | | | | |miscellaneous perennial forbs--| 5 | | | | |sideoats grama-----------------| 5 | | | | |tall dropseed------------------| 5 | | | | | |BocA: | | | | | | Bocox-------------------|Meadow | 6,500 | 4,500 | 2,500 |sedge--------------------------| 40 | 080AY090OK | | | |rush---------------------------| 25 | | | | |prairie cordgrass--------------| 10 | | | | |miscellaneous perennial grasses| 8 | | | | |miscellaneous perennial forbs--| 5 | | | | |switchgrass--------------------| 5 | | | | |miscellaneous shrubs-----------| 3 | | | | |inland ceanothus---------------| 2 | | | | |miscellaneous trees------------| 2 | | | | | |BtlA: | | | | | | Bathel------------------|Depressional Upland | 5,000 | 3,800 | 3,000 |switchgrass--------------------| 20 | 080AY099OK | | | |barnyardgrass------------------| 15 | | | | |miscellaneous perennial grasses| 15 | | | | |prairie cordgrass--------------| 10 | | | | |indiangrass--------------------| 8 | | | | |sedge--------------------------| 8 | | | | |annual grasses-----------------| 5 | | | | |curlytop knotweed--------------| 5 | | | | |miscellaneous perennial forbs--| 5 | | | | |other annual forbs-------------| 4 | | | | |miscellaneous shrubs-----------| 2 | | | | |miscellaneous trees------------| 2 | | | | |eastern gamagrass--------------| 1 | | | | | |
Logan County, Oklahoma 173 Rangeland Productivity and Characteristic Plant Communities—Continued _____________________________________________________________________________________________________________________________________ Map symbol | | Total dry-weight production | | Rangeland ___________________________________ and soil name | Ecological site | Favorable | Normal |Unfavorable| Characteristic vegetation | composition | | year | year | year | | _____________________________________________________________________________________________________________________________________ | | Lb/acre | Lb/acre | Lb/acre | | Pct _______ _______ _______ __

_

 | | | | | |CaaA: | | | | | | Canadian----------------|Loamy Bottomland | 8,500 | 6,100 | 4,500 |big bluestem-------------------| 25 | 080AY050OK | | | |indiangrass--------------------| 15 | | | | |miscellaneous perennial grasses| 15 | | | | |switchgrass--------------------| 15 | | | | |little bluestem----------------| 10 | | | | |miscellaneous perennial forbs--| 10 | | | | |eastern gamagrass--------------| 5 | | | | |miscellaneous trees------------| 5 | | | | | |CAID: | | | | | | Coyle-------------------|Loamy Prairie | 5,500 | 3,850 | 2,750 |little bluestem----------------| 25 | 080AY056OK | | | |big bluestem-------------------| 20 | | | | |indiangrass--------------------| 10 | | | | |switchgrass--------------------| 10 | | | | |blue grama---------------------| 5 | | | | |miscellaneous perennial forbs--| 5 | | | | |sideoats grama-----------------| 5 | | | | |tall dropseed------------------| 5 | | | | | | Ashport-----------------|Loamy Bottomland | 8,500 | 6,100 | 4,500 |big bluestem-------------------| 25 | 080AY050OK | | | |indiangrass--------------------| 15 | | | | |miscellaneous perennial grasses| 15 | | | | |switchgrass--------------------| 15 | | | | |little bluestem----------------| 10 | | | | |miscellaneous perennial forbs--| 10 | | | | |eastern gamagrass--------------| 5 | | | | |miscellaneous trees------------| 5 | | | | | | Ironmound---------------|Shallow Prairie | 3,000 | 2,100 | 1,500 |little bluestem----------------| 30 | 080AY083OK | | | |sideoats grama-----------------| 15 | | | | |big bluestem-------------------| 10 | | | | |blue grama---------------------| 10 | | | | |miscellaneous perennial forbs--| 10 | | | | |miscellaneous perennial grasses| 10 | | | | |buffalograss-------------------| 5 | | | | |sand dropseed------------------| 5 | | | | |threeawn-----------------------| 5 | | | | | |CoIC2: | | | | | | Coyle-------------------|Reseeded Loamy Prairie | 3,300 | 2,300 | 1,650 | --- | --- | 080AY856OK | | | | | | | | | | | Ironmound---------------|Reseeded Shallow Prairie | 2,000 | 1,400 | 1,000 | --- | --- | 080AY883OK | | | | | | | | | | |CoUB, CoUC. | | | | | | Coyle-Urban land | | | | | |
174 Soil Survey Rangeland Productivity and Characteristic Plant Communities—Continued _____________________________________________________________________________________________________________________________________ Map symbol | | Total dry-weight production | | Rangeland ___________________________________ and soil name | Ecological site | Favorable | Normal |Unfavorable| Characteristic vegetation | composition | | year | year | year | | _____________________________________________________________________________________________________________________________________ | | Lb/acre | Lb/acre | Lb/acre | | Pct _______ _______ _______ __

_

 | | | | | |CoyB: | | | | | | Coyle-------------------|Loamy Prairie | 5,500 | 3,850 | 2,750 |little bluestem----------------| 25 | 080AY056OK | | | |big bluestem-------------------| 20 | | | | |indiangrass--------------------| 10 | | | | |switchgrass--------------------| 10 | | | | |blue grama---------------------| 5 | | | | |miscellaneous perennial forbs--| 5 | | | | |sideoats grama-----------------| 5 | | | | |tall dropseed------------------| 5 | | | | | |CoyC2: | | | | | | Coyle-------------------|Reseeded Loamy Prairie | 3,300 | 2,300 | 1,650 | --- | --- | 080AY856OK | | | | | | | | | | |CoZC3: | | | | | | Coyle-------------------|Reseeded Loamy Prairie | 3,300 | 2,300 | 1,650 | --- | --- | 080AY856OK | | | | | | | | | | | Zaneis------------------|Reseeded Loamy Prairie | 3,300 | 2,300 | 1,650 | --- | --- | 080AY856OK | | | | | | | | | | |DAM. | | | | | | Dam | | | | | | | | | | | |DerB, DerD, DerE: | | | | | | Derby-------------------|Deep Sand Savannah | 4,000 | 2,800 | 2,000 |little bluestem----------------| 25 | 084AY018OK | | | |big bluestem-------------------| 20 | | | | |blackjack oak------------------| 10 | | | | |miscellaneous perennial grasses| 10 | | | | |post oak-----------------------| 10 | | | | |indiangrass--------------------| 5 | | | | |Scribner panicum---------------| 5 | | | | |miscellaneous perennial forbs--| 5 | | | | |miscellaneous shrubs-----------| 5 | | | | |switchgrass--------------------| 5 | | | | | |DiRG: | | | | | | Darsil------------------|Shallow Savannah | 3,200 | 2,100 | 1,400 |little bluestem----------------| 30 | 084AY089OK | | | |big bluestem-------------------| 20 | | | | |blackjack oak------------------| 10 | | | | |miscellaneous perennial grasses| 10 | | | | |post oak-----------------------| 10 | | | | |indiangrass--------------------| 5 | | | | |miscellaneous perennial forbs--| 5 | | | | |miscellaneous shrubs-----------| 5 | | | | |sideoats grama-----------------| 5 | | | | | | Rock outcrop. | | | | | |
Logan County, Oklahoma 175 Rangeland Productivity and Characteristic Plant Communities—Continued _____________________________________________________________________________________________________________________________________ Map symbol | | Total dry-weight production | | Rangeland ___________________________________ and soil name | Ecological site | Favorable | Normal |Unfavorable| Characteristic vegetation | composition | | year | year | year | | _____________________________________________________________________________________________________________________________________ | | Lb/acre | Lb/acre | Lb/acre | | Pct _______ _______ _______ __

_

 | | | | | |DouB, DouD: | | | | | | Dougherty---------------|Deep Sand Savannah | 4,000 | 2,800 | 2,000 |little bluestem----------------| 25 | 084AY018OK | | | |big bluestem-------------------| 20 | | | | |blackjack oak------------------| 10 | | | | |miscellaneous perennial grasses| 10 | | | | |post oak-----------------------| 10 | | | | |indiangrass--------------------| 5 | | | | |Scribner panicum---------------| 5 | | | | |miscellaneous perennial forbs--| 5 | | | | |miscellaneous shrubs-----------| 5 | | | | |switchgrass--------------------| 5 | | | | | |DUM. | | | | | | Dumps | | | | | | | | | | | |EasA: | | | | | | Easpur------------------|Loamy Bottomland | 8,500 | 6,100 | 4,500 |big bluestem-------------------| 25 | 080AY050OK | | | |indiangrass--------------------| 15 | | | | |miscellaneous perennial grasses| 15 | | | | |switchgrass--------------------| 15 | | | | |little bluestem----------------| 10 | | | | |miscellaneous perennial forbs--| 10 | | | | |eastern gamagrass--------------| 5 | | | | |miscellaneous trees------------| 5 | | | | | |GadA: | | | | | | Gaddy-------------------|Sandy Bottomland | 3,800 | 2,700 | 2,000 |switchgrass--------------------| 30 | 080AY068OK | | | |indiangrass--------------------| 15 | | | | |big bluestem-------------------| 15 | | | | |annual grasses-----------------| 10 | | | | |Texas bluegrass----------------| 5 | | | | |little bluestem----------------| 5 | | | | |miscellaneous perennial forbs--| 5 | | | | |miscellaneous perennial grasses| 5 | | | | |miscellaneous trees------------| 5 | | | | |threeawn-----------------------| 5 | | | | | |GaGA: | | | | | | Gaddy-------------------|Sandy Bottomland | 3,800 | 2,700 | 2,000 |switchgrass--------------------| 30 | 080AY068OK | | | |indiangrass--------------------| 15 | | | | |big bluestem-------------------| 15 | | | | |annual grasses-----------------| 10 | | | | |Texas bluegrass----------------| 5 | | | | |little bluestem----------------| 5 | | | | |miscellaneous perennial forbs--| 5 | | | | |miscellaneous perennial grasses| 5 | | | | |miscellaneous trees------------| 5 | | | | |threeawn-----------------------| 5
176 Soil Survey Rangeland Productivity and Characteristic Plant Communities—Continued _____________________________________________________________________________________________________________________________________ Map symbol | | Total dry-weight production | | Rangeland ___________________________________ and soil name | Ecological site | Favorable | Normal |Unfavorable| Characteristic vegetation | composition | | year | year | year | | _____________________________________________________________________________________________________________________________________ | | Lb/acre | Lb/acre | Lb/acre | | Pct _______ _______ _______ ___ | | | | | | GaGA: | | | | | | Gracemore---------------|Subirrigated | 9,000 | 8,000 | 7,000 |indiangrass--------------------| 30 | 080AY095OK | | | |miscellaneous perennial grasses| 15 | | | | |eastern gamagrass--------------| 10 | | | | |sand bluestem------------------| 10 | | | | |sedge--------------------------| 10 | | | | |miscellaneous shrubs-----------| 5 | | | | |switchgrass--------------------| 5 | | | | | | GMGE4: | | | | | | Grainola----------------|Reseeded Claypan Prairie | 3,300 | 2,300 | 1,600 | --- | --- | 080AY810OK | | | | | | | | | | | Masham------------------|Reseeded Clay | 2,400 | 1,700 | 1,200 | --- | --- | 080AY880OK | | | | | | | | | | | Gullied land. | | | | | | | | | | | | GMLG: | | | | | | Grainola----------------|Claypan Prairie (north) | 4,000 | 2,800 | 2,000 |little bluestem----------------| 25 | 080AY010OK | | | |big bluestem-------------------| 20 | | | | |switchgrass--------------------| 15 | | | | |indiangrass--------------------| 10 | | | | |blue grama---------------------| 5 | | | | |buffalograss-------------------| 5 | | | | |sideoats grama-----------------| 5 | | | | | | Masham------------------|Shallow Clay Prairie | 2,400 | 1,700 | 1,200 |sideoats grama-----------------| 25 | 080AY080OK | | | |buffalograss-------------------| 15 | | | | |alkali sacaton-----------------| 10 | | | | |blue grama---------------------| 10 | | | | |miscellaneous perennial grasses| 10 | | | | |hairy grama--------------------| 5 | | | | |little bluestem----------------| 5 | | | | |miscellaneous perennial forbs--| 5 | | | | |silver bluestem----------------| 5 | | | | |vine mesquite------------------| 5 | | | | |meadow dropseed----------------| 4 | | | | |fourwing saltbush--------------| 1 | | | | | |
Logan County, Oklahoma 177 Rangeland Productivity and Characteristic Plant Communities—Continued _____________________________________________________________________________________________________________________________________ Map symbol | | Total dry-weight production | | Rangeland ___________________________________ and soil name | Ecological site | Favorable | Normal |Unfavorable| Characteristic vegetation | composition | | year | year | year | | _____________________________________________________________________________________________________________________________________ | | Lb/acre | Lb/acre | Lb/acre | | Pct _______ _______ _______ __

_

 | | | | | |GMLG: | | | | | | Lucien------------------|Shallow Prairie | 3,000 | 2,100 | 1,500 |little bluestem----------------| 30 | 080AY083OK | | | |sideoats grama-----------------| 15 | | | | |big bluestem-------------------| 10 | | | | |blue grama---------------------| 10 | | | | |miscellaneous perennial forbs--| 10 | | | | |miscellaneous perennial grasses| 10 | | | | |buffalograss-------------------| 5 | | | | |sand dropseed------------------| 5 | | | | |threeawn-----------------------| 5 | | | | | |GohC, GohE: | | | | | | Goodnight---------------|Deep Sand | 4,000 | 2,700 | 1,800 |big bluestem-------------------| 25 | 080AY014OK | | | |little bluestem----------------| 20 | | | | |miscellaneous shrubs-----------| 10 | | | | |switchgrass--------------------| 10 | | | | |indiangrass--------------------| 5 | | | | |blue grama---------------------| 5 | | | | |miscellaneous perennial forbs--| 5 | | | | |miscellaneous perennial grasses| 5 | | | | |sand lovegrass-----------------| 5 | | | | |sand sagebrush-----------------| 5 | | | | |sideoats grama-----------------| 5 | | | | | |GooE, GooG: | | | | | | Goodnight---------------|Dune | 3,600 | 2,700 | 1,800 |little bluestem----------------| 30 | 080AY022OK | | | |sand bluestem------------------| 20 | | | | |switchgrass--------------------| 15 | | | | |miscellaneous perennial forbs--| 10 | | | | |miscellaneous perennial grasses| 10 | | | | |prairie sandreed---------------| 10 | | | | |Texas bluegrass----------------| 5 | | | | |miscellaneous shrubs-----------| 3 | | | | |miscellaneous trees------------| 2 | | | | | |GraC: | | | | | | Grainola----------------|Claypan Prairie (north) | 4,000 | 2,800 | 2,000 |little bluestem----------------| 25 | 080AY010OK | | | |big bluestem-------------------| 20 | | | | |switchgrass--------------------| 15 | | | | |indiangrass--------------------| 10 | | | | |blue grama---------------------| 5 | | | | |buffalograss-------------------| 5 | | | | |sideoats grama-----------------| 5 | | | | | |GraD2: | | | | | | Grainola----------------|Reseeded Claypan Prairie | 3,300 | 2,300 | 1,600 | --- | --- | 080AY810OK | | | | | | | | | | |
178 Soil Survey Rangeland Productivity and Characteristic Plant Communities—Continued _____________________________________________________________________________________________________________________________________ Map symbol | | Total dry-weight production | | Rangeland ___________________________________ and soil name | Ecological site | Favorable | Normal |Unfavorable| Characteristic vegetation | composition | | year | year | year | | _____________________________________________________________________________________________________________________________________ | | Lb/acre | Lb/acre | Lb/acre | | Pct _______ _______ _______ __

_

 | | | | | |GrHC: | | | | | | Grant-------------------|Loamy Prairie | 5,500 | 3,850 | 2,750 |little bluestem----------------| 25 | 080AY056OK | | | |big bluestem-------------------| 20 | | | | |indiangrass--------------------| 10 | | | | |switchgrass--------------------| 10 | | | | |blue grama---------------------| 5 | | | | |miscellaneous perennial forbs--| 5 | | | | |sideoats grama-----------------| 5 | | | | |tall dropseed------------------| 5 | | | | | | Huska-------------------|Slickspot | 2,000 | 1,400 | 1,000 |alkali sacaton-----------------| 15 | 080AY091OK | | | |miscellaneous perennial grasses| 15 | | | | |switchgrass--------------------| 15 | | | | |blue grama---------------------| 10 | | | | |sideoats grama-----------------| 10 | | | | |tall dropseed------------------| 10 | | | | |Scribner panicum---------------| 5 | | | | |dotted gayfeather--------------| 5 | | | | |miscellaneous perennial forbs--| 5 | | | | |silver bluestem----------------| 5 | | | | |whorled dropseed---------------| 5 | | | | | |GrIE: | | | | | | Grainola----------------|Claypan Prairie (north) | 4,000 | 2,800 | 2,000 |little bluestem----------------| 25 | 080AY010OK | | | |big bluestem-------------------| 20 | | | | |switchgrass--------------------| 15 | | | | |indiangrass--------------------| 10 | | | | |blue grama---------------------| 5 | | | | |buffalograss-------------------| 5 | | | | |sideoats grama-----------------| 5 | | | | | | Ironmound---------------|Shallow Prairie | 3,000 | 2,100 | 1,500 |little bluestem----------------| 30 | 080AY083OK | | | |sideoats grama-----------------| 15 | | | | |big bluestem-------------------| 10 | | | | |blue grama---------------------| 10 | | | | |miscellaneous perennial forbs--| 10 | | | | |miscellaneous perennial grasses| 10 | | | | |buffalograss-------------------| 5 | | | | |sand dropseed------------------| 5 | | | | |threeawn-----------------------| 5 | | | | | |
Logan County, Oklahoma 179 Rangeland Productivity and Characteristic Plant Communities—Continued _____________________________________________________________________________________________________________________________________ Map symbol | | Total dry-weight production | | Rangeland ___________________________________ and soil name | Ecological site | Favorable | Normal |Unfavorable| Characteristic vegetation | composition | | year | year | year | | _____________________________________________________________________________________________________________________________________ | | Lb/acre | Lb/acre | Lb/acre | | Pct _______ _______ _______ __

_

 | | | | | |GrLE: | | | | | | Grainola----------------|Claypan Prairie (north) | 4,000 | 2,800 | 2,000 |little bluestem----------------| 25 | 080AY010OK | | | |big bluestem-------------------| 20 | | | | |switchgrass--------------------| 15 | | | | |indiangrass--------------------| 10 | | | | |blue grama---------------------| 5 | | | | |buffalograss-------------------| 5 | | | | |sideoats grama-----------------| 5 | | | | | | Lucien------------------|Shallow Prairie | 3,000 | 2,100 | 1,500 |little bluestem----------------| 30 | 080AY083OK | | | |sideoats grama-----------------| 15 | | | | |big bluestem-------------------| 10 | | | | |blue grama---------------------| 10 | | | | |miscellaneous perennial forbs--| 10 | | | | |miscellaneous perennial grasses| 10 | | | | |buffalograss-------------------| 5 | | | | |sand dropseed------------------| 5 | | | | |threeawn-----------------------| 5 | | | | | |HaGD4: | | | | | | Harrah------------------|Reseeded Sandy Savannah | 2,700 | 1,900 | 1,300 | --- | --- | 084AY876OK | | | | | | | | | | | Gullied land. | | | | | | | | | | | |HarC: | | | | | | Harrah------------------|Sandy Savannah (central) | 5,000 | 3,500 | 2,500 |little bluestem----------------| 25 | 084AY076OK | | | |big bluestem-------------------| 20 | | | | |blackjack oak------------------| 10 | | | | |post oak-----------------------| 10 | | | | |Scribner panicum---------------| 5 | | | | |miscellaneous perennial forbs--| 5 | | | | |miscellaneous trees------------| 5 | | | | |purple lovegrass---------------| 5 | | | | |purpletop tridens--------------| 5 | | | | |sand lovegrass-----------------| 5 | | | | |switchgrass--------------------| 5 | | | | | |HarC2: | | | | | | Harrah------------------|Reseeded Sandy Savannah | 2,700 | 1,900 | 1,300 | --- | --- | 084AY876OK | | | | | | | | | | |
180 Soil Survey Rangeland Productivity and Characteristic Plant Communities—Continued _____________________________________________________________________________________________________________________________________ Map symbol | | Total dry-weight production | | Rangeland ___________________________________ and soil name | Ecological site | Favorable | Normal |Unfavorable| Characteristic vegetation | composition | | year | year | year | | _____________________________________________________________________________________________________________________________________ | | Lb/acre | Lb/acre | Lb/acre | | Pct _______ _______ _______ __

_

 | | | | | |HarG: | | | | | | Harrah------------------|Sandy Savannah (central) | 5,000 | 3,500 | 2,500 |little bluestem----------------| 25 | 084AY076OK | | | |big bluestem-------------------| 20 | | | | |blackjack oak------------------| 10 | | | | |post oak-----------------------| 10 | | | | |Scribner panicum---------------| 5 | | | | |miscellaneous perennial forbs--| 5 | | | | |miscellaneous trees------------| 5 | | | | |purple lovegrass---------------| 5 | | | | |purpletop tridens--------------| 5 | | | | |sand lovegrass-----------------| 5 | | | | |switchgrass--------------------| 5 | | | | | |HawB: | | | | | | Hawley------------------|Sandy Bottomland | 3,800 | 2,700 | 2,000 |switchgrass--------------------| 30 | 080AY068OK | | | |indiangrass--------------------| 15 | | | | |big bluestem-------------------| 15 | | | | |annual grasses-----------------| 10 | | | | |Texas bluegrass----------------| 5 | | | | |little bluestem----------------| 5 | | | | |miscellaneous perennial forbs--| 5 | | | | |miscellaneous perennial grasses| 5 | | | | |miscellaneous trees------------| 5 | | | | |threeawn-----------------------| 5 | | | | | |ICGD3: | | | | | | Ironmound---------------|Reseeded Shallow Prairie | 2,000 | 1,400 | 1,000 | --- | --- | 080AY883OK | | | | | | | | | | | Coyle-------------------|Reseeded Loamy Prairie | 3,300 | 2,300 | 1,650 | --- | --- | 080AY856OK | | | | | | | | | | | Grainola----------------|Reseeded Claypan Prairie | 3,300 | 2,300 | 1,600 | --- | --- | 080AY810OK | | | | | | | | | | |IrCE: | | | | | | Ironmound---------------|Shallow Prairie | 3,000 | 2,100 | 1,500 |little bluestem----------------| 30 | 080AY083OK | | | |sideoats grama-----------------| 15 | | | | |big bluestem-------------------| 10 | | | | |blue grama---------------------| 10 | | | | |miscellaneous perennial forbs--| 10 | | | | |miscellaneous perennial grasses| 10 | | | | |buffalograss-------------------| 5 | | | | |sand dropseed------------------| 5 | | | | |threeawn-----------------------| 5 | | | | | |
Logan County, Oklahoma 181 Rangeland Productivity and Characteristic Plant Communities—Continued _____________________________________________________________________________________________________________________________________ Map symbol | | Total dry-weight production | | Rangeland ___________________________________ and soil name | Ecological site | Favorable | Normal |Unfavorable| Characteristic vegetation | composition | | year | year | year | | _____________________________________________________________________________________________________________________________________ | | Lb/acre | Lb/acre | Lb/acre | | Pct _______ _______ _______ __

_

 | | | | | |IrCE: | | | | | | Coyle-------------------|Loamy Prairie | 5,500 | 3,850 | 2,750 |little bluestem----------------| 25 | 080AY056OK | | | |big bluestem-------------------| 20 | | | | |indiangrass--------------------| 10 | | | | |switchgrass--------------------| 10 | | | | |blue grama---------------------| 5 | | | | |miscellaneous perennial forbs--| 5 | | | | |sideoats grama-----------------| 5 | | | | |tall dropseed------------------| 5 | | | | | |IroC2: | | | | | | Ironmound---------------|Reseeded Shallow Prairie | 2,000 | 1,400 | 1,000 | --- | --- | 080AY883OK | | | | | | | | | | |KgfB: | | | | | | Kingfisher--------------|Loamy Prairie | 5,500 | 3,850 | 2,750 |little bluestem----------------| 25 | 080AY056OK | | | |big bluestem-------------------| 20 | | | | |indiangrass--------------------| 10 | | | | |switchgrass--------------------| 10 | | | | |blue grama---------------------| 5 | | | | |miscellaneous perennial forbs--| 5 | | | | |sideoats grama-----------------| 5 | | | | |tall dropseed------------------| 5 | | | | | |KinC2: | | | | | | Kingfisher--------------|Reseeded Loamy Prairie | 3,300 | 2,300 | 1,650 | --- | --- | 080AY856OK | | | | | | | | | | |KonB: | | | | | | Konawa------------------|Sandy Savannah (central) | 5,000 | 3,500 | 2,500 |little bluestem----------------| 25 | 084AY076OK | | | |big bluestem-------------------| 20 | | | | |blackjack oak------------------| 10 | | | | |post oak-----------------------| 10 | | | | |Scribner panicum---------------| 5 | | | | |miscellaneous perennial forbs--| 5 | | | | |miscellaneous trees------------| 5 | | | | |purple lovegrass---------------| 5 | | | | |purpletop tridens--------------| 5 | | | | |sand lovegrass-----------------| 5 | | | | |switchgrass--------------------| 5 | | | | | |KonD2: | | | | | | Konawa------------------|Reseeded Sandy Savannah | 2,700 | 1,900 | 1,300 | --- | --- | 084AY876OK | | | | | | | | | | |
182 Soil Survey Rangeland Productivity and Characteristic Plant Communities—Continued _____________________________________________________________________________________________________________________________________ Map symbol | | Total dry-weight production | | Rangeland ___________________________________ and soil name | Ecological site | Favorable | Normal |Unfavorable| Characteristic vegetation | composition | | year | year | year | | _____________________________________________________________________________________________________________________________________ | | Lb/acre | Lb/acre | Lb/acre | | Pct _______ _______ _______ __

_

 | | | | | |KrdA, KrkB: | | | | | | Kirkland----------------|Claypan Prairie (north) | 4,000 | 2,800 | 2,000 |little bluestem----------------| 25 | 080AY010OK | | | |big bluestem-------------------| 20 | | | | |switchgrass--------------------| 15 | | | | |indiangrass--------------------| 10 | | | | |blue grama---------------------| 5 | | | | |buffalograss-------------------| 5 | | | | |sideoats grama-----------------| 5 | | | | | |LarA, LawA: | | | | | | Lawrie------------------|Loamy Bottomland | 8,500 | 6,100 | 4,500 |big bluestem-------------------| 25 | 080AY050OK | | | |indiangrass--------------------| 15 | | | | |miscellaneous perennial grasses| 15 | | | | |switchgrass--------------------| 15 | | | | |little bluestem----------------| 10 | | | | |miscellaneous perennial forbs--| 10 | | | | |eastern gamagrass--------------| 5 | | | | |miscellaneous trees------------| 5 | | | | | |LerA: | | | | | | Lebron------------------|Meadow | 6,500 | 4,500 | 2,500 |sedge--------------------------| 40 | 080AY090OK | | | |rush---------------------------| 25 | | | | |prairie cordgrass--------------| 10 | | | | |miscellaneous perennial grasses| 8 | | | | |miscellaneous perennial forbs--| 5 | | | | |switchgrass--------------------| 5 | | | | |miscellaneous shrubs-----------| 3 | | | | |inland ceanothus---------------| 2 | | | | |miscellaneous trees------------| 2 | | | | | |LitB: | | | | | | Littleaxe---------------|Sandy Savannah (central) | 5,000 | 3,500 | 2,500 |little bluestem----------------| 25 | 084AY076OK | | | |big bluestem-------------------| 20 | | | | |blackjack oak------------------| 10 | | | | |post oak-----------------------| 10 | | | | |Scribner panicum---------------| 5 | | | | |miscellaneous perennial forbs--| 5 | | | | |miscellaneous trees------------| 5 | | | | |purple lovegrass---------------| 5 | | | | |purpletop tridens--------------| 5 | | | | |sand lovegrass-----------------| 5 | | | | |switchgrass--------------------| 5 | | | | | |LitC2: | | | | | | Littleaxe---------------|Reseeded Sandy Savannah | 2,700 | 1,900 | 1,300 | --- | --- | 084AY876OK | | | | | | | | | | |
Logan County, Oklahoma 183 Rangeland Productivity and Characteristic Plant Communities—Continued _____________________________________________________________________________________________________________________________________ Map symbol | | Total dry-weight production | | Rangeland ___________________________________ and soil name | Ecological site | Favorable | Normal |Unfavorable| Characteristic vegetation | composition | | year | year | year | | _____________________________________________________________________________________________________________________________________ | | Lb/acre | Lb/acre | Lb/acre | | Pct _______ _______ _______ ___ | | | | | | M-W. | | | | | | Miscellaneous water | | | | | | | | | | | | MaID, MaIG: | | | | | | Masham------------------|Shallow Clay Prairie | 2,400 | 1,700 | 1,200 |sideoats grama-----------------| 25 | 080AY080OK | | | |buffalograss-------------------| 15 | | | | |alkali sacaton-----------------| 10 | | | | |blue grama---------------------| 10 | | | | |miscellaneous perennial grasses| 10 | | | | |hairy grama--------------------| 5 | | | | |little bluestem----------------| 5 | | | | |miscellaneous perennial forbs--| 5 | | | | |silver bluestem----------------| 5 | | | | |vine mesquite------------------| 5 | | | | |meadow dropseed----------------| 4 | | | | |fourwing saltbush--------------| 1 | | | | | | Ironmound---------------|Shallow Prairie | 3,000 | 2,100 | 1,500 |little bluestem----------------| 30 | 080AY083OK | | | |sideoats grama-----------------| 15 | | | | |big bluestem-------------------| 10 | | | | |blue grama---------------------| 10 | | | | |miscellaneous perennial forbs--| 10 | | | | |miscellaneous perennial grasses| 10 | | | | |buffalograss-------------------| 5 | | | | |sand dropseed------------------| 5 | | | | |threeawn-----------------------| 5 | | | | | | MinB, MinC, MinD, MinF: | | | | | | Minco-------------------|Loamy Prairie | 5,500 | 3,850 | 2,750 |little bluestem----------------| 25 | 080AY056OK | | | |big bluestem-------------------| 20 | | | | |indiangrass--------------------| 10 | | | | |switchgrass--------------------| 10 | | | | |blue grama---------------------| 5 | | | | |miscellaneous perennial forbs--| 5 | | | | |sideoats grama-----------------| 5 | | | | |tall dropseed------------------| 5 | | | | | |
184 Soil Survey Rangeland Productivity and Characteristic Plant Communities—Continued _____________________________________________________________________________________________________________________________________ Map symbol | | Total dry-weight production | | Rangeland ___________________________________ and soil name | Ecological site | Favorable | Normal |Unfavorable| Characteristic vegetation | composition | | year | year | year | | _____________________________________________________________________________________________________________________________________ | | Lb/acre | Lb/acre | Lb/acre | | Pct _______ _______ _______ __

_

 | | | | | |MllA: | | | | | | Miller------------------|Heavy Bottomland | 5,500 | 3,700 | 2,500 |switchgrass--------------------| 15 | 080AY045OK | | | |blue grama---------------------| 10 | | | | |meadow dropseed----------------| 10 | | | | |miscellaneous perennial grasses| 10 | | | | |sideoats grama-----------------| 10 | | | | |western wheatgrass-------------| 10 | | | | |Canada wildrye-----------------| 5 | | | | |alkali sacaton-----------------| 5 | | | | |buffalograss-------------------| 5 | | | | |fourwing saltbush--------------| 5 | | | | |miscellaneous perennial forbs--| 5 | | | | |prairie cordgrass--------------| 5 | | | | |vine mesquite------------------| 5 | | | | | |MulC: | | | | | | Mulhall-----------------|Loamy Prairie | 5,500 | 3,850 | 2,750 |little bluestem----------------| 25 | 080AY056OK | | | |big bluestem-------------------| 20 | | | | |indiangrass--------------------| 10 | | | | |switchgrass--------------------| 10 | | | | |blue grama---------------------| 5 | | | | |miscellaneous perennial forbs--| 5 | | | | |sideoats grama-----------------| 5 | | | | |tall dropseed------------------| 5 | | | | | |MulC2: | | | | | | Mulhall-----------------|Reseeded Loamy Prairie | 3,300 | 2,300 | 1,650 | --- | --- | 080AY856OK | | | | | | | | | | |NavA, NavB: | | | | | | Navina------------------|Sandy Prairie | 4,500 | 3,200 | 2,000 |little bluestem----------------| 30 | 080AY073OK | | | |big bluestem-------------------| 25 | | | | |indiangrass--------------------| 10 | | | | |switchgrass--------------------| 10 | | | | |blue grama---------------------| 5 | | | | |sand sagebrush-----------------| 5 | | | | |sideoats grama-----------------| 5 | | | | |sand lovegrass-----------------| 3 | | | | |skunkbush sumac----------------| 2 | | | | | |NeGD4: | | | | | | Newalla-----------------|Reseeded Sandy Savannah | 2,700 | 1,900 | 1,300 | --- | --- | 084AY876OK | | | | | | | | | | | Gullied land. | | | | | | | | | | | |
Logan County, Oklahoma 185 Rangeland Productivity and Characteristic Plant Communities—Continued _____________________________________________________________________________________________________________________________________ Map symbol | | Total dry-weight production | | Rangeland ___________________________________ and soil name | Ecological site | Favorable | Normal |Unfavorable| Characteristic vegetation | composition | | year | year | year | | _____________________________________________________________________________________________________________________________________ | | Lb/acre | Lb/acre | Lb/acre | | Pct _______ _______ _______ __

_

 | | | | | |NewB: | | | | | | Newalla-----------------|Sandy Savannah (central) | 5,000 | 3,500 | 2,500 |little bluestem----------------| 25 | 084AY076OK | | | |big bluestem-------------------| 20 | | | | |blackjack oak------------------| 10 | | | | |post oak-----------------------| 10 | | | | |Scribner panicum---------------| 5 | | | | |miscellaneous perennial forbs--| 5 | | | | |miscellaneous trees------------| 5 | | | | |purple lovegrass---------------| 5 | | | | |purpletop tridens--------------| 5 | | | | |sand lovegrass-----------------| 5 | | | | |switchgrass--------------------| 5 | | | | | |NorA, NorB: | | | | | | Norge-------------------|Loamy Prairie | 5,500 | 3,850 | 2,750 |little bluestem----------------| 25 | 080AY056OK | | | |big bluestem-------------------| 20 | | | | |indiangrass--------------------| 10 | | | | |switchgrass--------------------| 10 | | | | |blue grama---------------------| 5 | | | | |miscellaneous perennial forbs--| 5 | | | | |sideoats grama-----------------| 5 | | | | |tall dropseed------------------| 5 | | | | | |NorC2: | | | | | | Norge-------------------|Reseeded Loamy Prairie | 3,300 | 2,300 | 1,650 | --- | --- | 080AY856OK | | | | | | | | | | |OWHD: | | | | | | Oil waste land. | | | | | | | | | | | | Huska-------------------|Slickspot | 2,000 | 1,400 | 1,000 |alkali sacaton-----------------| 15 | 080AY091OK | | | |miscellaneous perennial grasses| 15 | | | | |switchgrass--------------------| 15 | | | | |blue grama---------------------| 10 | | | | |sideoats grama-----------------| 10 | | | | |tall dropseed------------------| 10 | | | | |Scribner panicum---------------| 5 | | | | |dotted gayfeather--------------| 5 | | | | |miscellaneous perennial forbs--| 5 | | | | |silver bluestem----------------| 5 | | | | |whorled dropseed---------------| 5 | | | | | |
186 Soil Survey Rangeland Productivity and Characteristic Plant Communities—Continued _____________________________________________________________________________________________________________________________________ Map symbol | | Total dry-weight production | | Rangeland ___________________________________ and soil name | Ecological site | Favorable | Normal |Unfavorable| Characteristic vegetation | composition | | year | year | year | | _____________________________________________________________________________________________________________________________________ | | Lb/acre | Lb/acre | Lb/acre | | Pct _______ _______ _______ __

_

 | | | | | |PieB: | | | | | | Piedmont----------------|Claypan Prairie (north) | 4,000 | 2,800 | 2,000 |little bluestem----------------| 25 | 080AY010OK | | | |big bluestem-------------------| 20 | | | | |switchgrass--------------------| 15 | | | | |indiangrass--------------------| 10 | | | | |blue grama---------------------| 5 | | | | |buffalograss-------------------| 5 | | | | |sideoats grama-----------------| 5 | | | | | |PieC2: | | | | | | Piedmont----------------|Reseeded Claypan Prairie | 3,300 | 2,300 | 1,600 | --- | --- | 080AY810OK | | | | | | | | | | |PIT. | | | | | | Pits | | | | | | | | | | | |PukA, PulA: | | | | | | Pulaski-----------------|Loamy Bottomland | 7,000 | 4,900 | 3,500 |big bluestem-------------------| 25 | 084AY050OK | | | |indiangrass--------------------| 15 | | | | |switchgrass--------------------| 15 | | | | |miscellaneous trees------------| 10 | | | | |beaked panicum-----------------| 5 | | | | |eastern gamagrass--------------| 5 | | | | |miscellaneous perennial forbs--| 5 | | | | |prairie cordgrass--------------| 5 | | | | |sedge--------------------------| 5 | | | | | |RenB, RenC: | | | | | | Renfrow-----------------|Claypan Prairie (north) | 4,000 | 2,800 | 2,000 |little bluestem----------------| 25 | 080AY010OK | | | |big bluestem-------------------| 20 | | | | |switchgrass--------------------| 15 | | | | |indiangrass--------------------| 10 | | | | |blue grama---------------------| 5 | | | | |buffalograss-------------------| 5 | | | | |sideoats grama-----------------| 5 | | | | | |RewC2: | | | | | | Renfrow-----------------|Reseeded Claypan Prairie | 3,300 | 2,300 | 1,600 | --- | --- | 080AY810OK | | | | | | | | | | |RinB: | | | | | | Renthin-----------------|Claypan Prairie (north) | 4,000 | 2,800 | 2,000 |little bluestem----------------| 25 | 080AY010OK | | | |big bluestem-------------------| 20 | | | | |switchgrass--------------------| 15 | | | | |indiangrass--------------------| 10 | | | | |blue grama---------------------| 5 | | | | |buffalograss-------------------| 5 | | | | |sideoats grama-----------------| 5
Logan County, Oklahoma 187 Rangeland Productivity and Characteristic Plant Communities—Continued _____________________________________________________________________________________________________________________________________ Map symbol | | Total dry-weight production | | Rangeland ___________________________________ and soil name | Ecological site | Favorable | Normal |Unfavorable| Characteristic vegetation | composition | | year | year | year | | _____________________________________________________________________________________________________________________________________ | | Lb/acre | Lb/acre | Lb/acre | | Pct _______ _______ _______ __

_

 | | | | | |RnnC2: | | | | | | Renthin-----------------|Reseeded Claypan Prairie | 3,300 | 2,300 | 1,600 | --- | --- | 080AY810OK | | | | | | | | | | |SDGD4: | | | | | | Stephenville------------|Reseeded Sandy Savannah | 2,700 | 1,900 | 1,300 | --- | --- | 084AY876OK | | | | | | | | | | | Darsil------------------|Reseeded Shallow Savannah| 1,700 | 1,100 | 800 | --- | --- | 084AY889OK | | | | | | | | | | | Gullied land. | | | | | | | | | | | |SDND: | | | | | | Stephenville------------|Sandy Savannah (central) | 5,000 | 3,500 | 2,500 |little bluestem----------------| 25 | 084AY076OK | | | |big bluestem-------------------| 20 | | | | |blackjack oak------------------| 10 | | | | |post oak-----------------------| 10 | | | | |Scribner panicum---------------| 5 | | | | |miscellaneous perennial forbs--| 5 | | | | |miscellaneous trees------------| 5 | | | | |purple lovegrass---------------| 5 | | | | |purpletop tridens--------------| 5 | | | | |sand lovegrass-----------------| 5 | | | | |switchgrass--------------------| 5 | | | | | | Darsil------------------|Shallow Savannah | 3,200 | 2,100 | 1,400 |little bluestem----------------| 30 | 084AY089OK | | | |big bluestem-------------------| 20 | | | | |blackjack oak------------------| 10 | | | | |miscellaneous perennial grasses| 10 | | | | |post oak-----------------------| 10 | | | | |indiangrass--------------------| 5 | | | | |miscellaneous perennial forbs--| 5 | | | | |miscellaneous shrubs-----------| 5 | | | | |sideoats grama-----------------| 5 | | | | | | Newalla-----------------|Sandy Savannah (central) | 5,000 | 3,500 | 2,500 |little bluestem----------------| 25 | 084AY076OK | | | |big bluestem-------------------| 20 | | | | |blackjack oak------------------| 10 | | | | |post oak-----------------------| 10 | | | | |Scribner panicum---------------| 5 | | | | |miscellaneous perennial forbs--| 5 | | | | |miscellaneous trees------------| 5 | | | | |purple lovegrass---------------| 5 | | | | |purpletop tridens--------------| 5 | | | | |sand lovegrass-----------------| 5 | | | | |switchgrass--------------------| 5 | | | | | |
188 Soil Survey Rangeland Productivity and Characteristic Plant Communities—Continued _____________________________________________________________________________________________________________________________________ Map symbol | | Total dry-weight production | | Rangeland ___________________________________ and soil name | Ecological site | Favorable | Normal |Unfavorable| Characteristic vegetation | composition | | year | year | year | | _____________________________________________________________________________________________________________________________________ | | Lb/acre | Lb/acre | Lb/acre | | Pct _______ _______ _______ __

_

 | | | | | |SDND2: | | | | | | Stephenville------------|Reseeded Sandy Savannah | 2,700 | 1,900 | 1,300 | --- | --- | 084AY876OK | | | | | | | | | | | Darsil------------------|Reseeded Shallow Savannah| 1,700 | 1,100 | 800 | --- | --- | 084AY889OK | | | | | | | | | | | Newalla-----------------|Reseeded Sandy Savannah | 2,700 | 1,900 | 1,300 | --- | --- | 084AY876OK | | | | | | | | | | |SlaB, SlaD, SlaF: | | | | | | Slaughterville----------|Sandy Prairie | 4,500 | 3,200 | 2,000 |little bluestem----------------| 30 | 080AY073OK | | | |big bluestem-------------------| 25 | | | | |indiangrass--------------------| 10 | | | | |switchgrass--------------------| 10 | | | | |blue grama---------------------| 5 | | | | |sand sagebrush-----------------| 5 | | | | |sideoats grama-----------------| 5 | | | | |sand lovegrass-----------------| 3 | | | | |skunkbush sumac----------------| 2 | | | | | |StDC: | | | | | | Stephenville------------|Sandy Savannah (central) | 5,000 | 3,500 | 2,500 |little bluestem----------------| 25 | 084AY076OK | | | |big bluestem-------------------| 20 | | | | |blackjack oak------------------| 10 | | | | |post oak-----------------------| 10 | | | | |Scribner panicum---------------| 5 | | | | |miscellaneous perennial forbs--| 5 | | | | |miscellaneous trees------------| 5 | | | | |purple lovegrass---------------| 5 | | | | |purpletop tridens--------------| 5 | | | | |sand lovegrass-----------------| 5 | | | | |switchgrass--------------------| 5 | | | | | | Darsil------------------|Shallow Savannah | 3,200 | 2,100 | 1,400 |little bluestem----------------| 30 | 084AY089OK | | | |big bluestem-------------------| 20 | | | | |blackjack oak------------------| 10 | | | | |miscellaneous perennial grasses| 10 | | | | |post oak-----------------------| 10 | | | | |indiangrass--------------------| 5 | | | | |miscellaneous perennial forbs--| 5 | | | | |miscellaneous shrubs-----------| 5 | | | | |sideoats grama-----------------| 5 | | | | | |
Logan County, Oklahoma 189 Rangeland Productivity and Characteristic Plant Communities—Continued _____________________________________________________________________________________________________________________________________ Map symbol | | Total dry-weight production | | Rangeland ___________________________________ and soil name | Ecological site | Favorable | Normal |Unfavorable| Characteristic vegetation | composition | | year | year | year | | _____________________________________________________________________________________________________________________________________ | | Lb/acre | Lb/acre | Lb/acre | | Pct _______ _______ _______ __

_

 | | | | | |StDC2: | | | | | | Stephenville------------|Reseeded Sandy Savannah | 2,700 | 1,900 | 1,300 | --- | --- | 084AY876OK | | | | | | | | | | | Darsil------------------|Reseeded Shallow Savannah| 1,700 | 1,100 | 800 | --- | --- | 084AY889OK | | | | | | | | | | |StDE: | | | | | | Stephenville------------|Sandy Savannah (central) | 5,000 | 3,500 | 2,500 |little bluestem----------------| 25 | 084AY076OK | | | |big bluestem-------------------| 20 | | | | |blackjack oak------------------| 10 | | | | |post oak-----------------------| 10 | | | | |Scribner panicum---------------| 5 | | | | |miscellaneous perennial forbs--| 5 | | | | |miscellaneous trees------------| 5 | | | | |purple lovegrass---------------| 5 | | | | |purpletop tridens--------------| 5 | | | | |sand lovegrass-----------------| 5 | | | | |switchgrass--------------------| 5 | | | | | | Darsil------------------|Shallow Savannah | 3,200 | 2,100 | 1,400 |little bluestem----------------| 30 | 084AY089OK | | | |big bluestem-------------------| 20 | | | | |blackjack oak------------------| 10 | | | | |miscellaneous perennial grasses| 10 | | | | |post oak-----------------------| 10 | | | | |indiangrass--------------------| 5 | | | | |miscellaneous perennial forbs--| 5 | | | | |miscellaneous shrubs-----------| 5 | | | | |sideoats grama-----------------| 5 | | | | | |SteB: | | | | | | Stephenville------------|Sandy Savannah (central) | 5,000 | 3,500 | 2,500 |little bluestem----------------| 25 | 084AY076OK | | | |big bluestem-------------------| 20 | | | | |blackjack oak------------------| 10 | | | | |post oak-----------------------| 10 | | | | |Scribner panicum---------------| 5 | | | | |miscellaneous perennial forbs--| 5 | | | | |miscellaneous trees------------| 5 | | | | |purple lovegrass---------------| 5 | | | | |purpletop tridens--------------| 5 | | | | |sand lovegrass-----------------| 5 | | | | |switchgrass--------------------| 5 | | | | | |SteC2: | | | | | | Stephenville------------|Reseeded Sandy Savannah | 2,700 | 1,900 | 1,300 | --- | --- | 084AY876OK | | | | | | | | | | |
190 Soil Survey Rangeland Productivity and Characteristic Plant Communities—Continued _____________________________________________________________________________________________________________________________________ Map symbol | | Total dry-weight production | | Rangeland ___________________________________ and soil name | Ecological site | Favorable | Normal |Unfavorable| Characteristic vegetation | composition | | year | year | year | | _____________________________________________________________________________________________________________________________________ | | Lb/acre | Lb/acre | Lb/acre | | Pct _______ _______ _______ __

_

 | | | | | |SUND. | | | | | | Stephenville-Urban land-| | | | | | Newalla | | | | | | | | | | | |TelB: | | | | | | Teller------------------|Loamy Prairie | 5,500 | 3,850 | 2,750 |little bluestem----------------| 25 | 080AY056OK | | | |big bluestem-------------------| 20 | | | | |indiangrass--------------------| 10 | | | | |switchgrass--------------------| 10 | | | | |blue grama---------------------| 5 | | | | |miscellaneous perennial forbs--| 5 | | | | |sideoats grama-----------------| 5 | | | | |tall dropseed------------------| 5 | | | | | |TelC2: | | | | | | Teller------------------|Reseeded Loamy Prairie | 3,300 | 2,300 | 1,650 | --- | --- | 080AY856OK | | | | | | | | | | |TriA: | | | | | | Tribbey-----------------|Subirrigated | 6,000 | 4,200 | 3,000 |switchgrass--------------------| 25 | 084AY095OK | | | |miscellaneous perennial grasses| 15 | | | | |eastern gamagrass--------------| 10 | | | | |miscellaneous shrubs-----------| 10 | | | | |sedge--------------------------| 10 | | | | |indiangrass--------------------| 5 | | | | |big bluestem-------------------| 5 | | | | |bulrush------------------------| 5 | | | | |bushy bluestem-----------------| 5 | | | | |miscellaneous perennial forbs--| 5 | | | | |prairie cordgrass--------------| 5 | | | | | |URB. | | | | | | Urban land. | | | | | | | | | | | |W. | | | | | | Water | | | | | | | | | | | |YaaA, YahA: | | | | | | Yahola------------------|Loamy Bottomland | 8,500 | 6,100 | 4,500 |big bluestem-------------------| 25 | 080AY050OK | | | |indiangrass--------------------| 15 | | | | |miscellaneous perennial grasses| 15 | | | | |switchgrass--------------------| 15 | | | | |little bluestem----------------| 10 | | | | |miscellaneous perennial forbs--| 10 | | | | |eastern gamagrass--------------| 5 | | | | |miscellaneous trees------------| 5 | | | | | |
Logan County, Oklahoma 191 Rangeland Productivity and Characteristic Plant Communities—Continued _____________________________________________________________________________________________________________________________________ Map symbol | | Total dry-weight production | | Rangeland ___________________________________ and soil name | Ecological site | Favorable | Normal |Unfavorable| Characteristic vegetation | composition | | year | year | year | | _____________________________________________________________________________________________________________________________________ | | Lb/acre | Lb/acre | Lb/acre | | Pct _______ _______ _______ ___ | | | | | | ZaHC: | | | | | | Zaneis------------------|Loamy Prairie | 5,500 | 3,850 | 2,750 |little bluestem----------------| 25 | 080AY056OK | | | |big bluestem-------------------| 20 | | | | |indiangrass--------------------| 10 | | | | |switchgrass--------------------| 10 | | | | |blue grama---------------------| 5 | | | | |miscellaneous perennial forbs--| 5 | | | | |sideoats grama-----------------| 5 | | | | |tall dropseed------------------| 5 | | | | | | Huska-------------------|Slickspot | 2,000 | 1,400 | 1,000 |alkali sacaton-----------------| 15 | 080AY091OK | | | |miscellaneous perennial grasses| 15 | | | | |switchgrass--------------------| 15 | | | | |blue grama---------------------| 10 | | | | |sideoats grama-----------------| 10 | | | | |tall dropseed------------------| 10 | | | | |Scribner panicum---------------| 5 | | | | |dotted gayfeather--------------| 5 | | | | |miscellaneous perennial forbs--| 5 | | | | |silver bluestem----------------| 5 | | | | |whorled dropseed---------------| 5 | | | | | | ZanB, ZanC: | | | | | | Zaneis------------------|Loamy Prairie | 5,500 | 3,850 | 2,750 |little bluestem----------------| 25 | 080AY056OK | | | |big bluestem-------------------| 20 | | | | |indiangrass--------------------| 10 | | | | |switchgrass--------------------| 10 | | | | |blue grama---------------------| 5 | | | | |miscellaneous perennial forbs--| 5 | | | | |sideoats grama-----------------| 5 | | | | |tall dropseed------------------| 5 | | | | | | ZanC2: | | | | | | Zaneis------------------|Reseeded Loamy Prairie | 3,300 | 2,300 | 1,650 | --- | --- | 080AY856OK | | | | | | | | | | | _____________________________________________________________________________________________________________________________________
192 Soil Survey

Similarity Index

Similarity index indicates, by percentages ranging from 1 to 100, the extent to which

the present plant community resembles one of two other plant communities on an

ecological site. A similarity index can be used to compare the present vegetation on an

ecological site to the presumed historic vegetation for that site. This comparison

provides a basis for ascertaining the extent and direction of changes that have

differentiated the current vegetation from the historic vegetation. A similarity index of

70 would suggest that the present plant community has 70 percent of the presumed

historic plant community for the site.

The management goal is not necessarily a present plant community that has a

similarity index of 100 when compared to the historic plant community. A similarity

index can be used as a measure of how near the current plant community is to the

goal of the landowner, that is, the percentage of the present plant community that

resembles a desired plant community.

Abnormal disturbances that change the natural plant community include repeated

overuse by livestock, excessive burning, erosion, and cultivation. Grazing animals

select the most palatable plants. These plants will eventually die if they are continually

grazed at a severity that does not allow for recovery. A very severe disturbance can

completely destroy the natural community. Under these conditions, the less desirable

plants, such as annuals and weed-like plants, can increase in abundance. If the plant

community and the soils have not deteriorated significantly, the plant community

eventually can return to predominantly natural plants if proper range management is

applied.

Knowledge of the ecological site is necessary as a basis for planning and applying

the management needed to maintain or improve the desired plant community for

selected uses. Such information is needed to support or maintain management

objectives, planned grazing systems, proper stocking rates, suitable wildlife

management practices, recreational uses, and the condition of watersheds.

Rangeland Management

Rangeland management requires a knowledge of the kinds of soil and of the

potential natural plant community. It also requires an evaluation of the similarity index.

Effective range management conserves rainfall, enhances water quality, reduces

the hazard of downstream flooding, improves yields, provides forage for livestock and

wildlife, enhances recreational opportunities, and protects the soil. The main

management concern is recognizing important changes in the plant cover or the range

trend. These changes take place gradually and may be overlooked.

Each range manager should evaluate the type of plant community that best

supports the ranch and then apply management and ecological principles to achieve

the goals. The desired plant community should be within the capabilities of the land.

The primary range management practices used in Logan County include prescribed

grazing, stock-water developments, and fences. If undesirable plants become

dominant, range seeding, brush management, or prescribed burning are commonly

used.

Range management includes four major considerations:

1. Proper grazing distribution, which is achieved by managing livestock so that all

parts of the grazing unit are grazed equally.

2. Selective grazing, which occurs because animals graze preferred plants to

balance their diets. If selective grazing occurs repeatedly, the preferred plants are

damaged.

3. A proper stocking rate, which is achieved by balancing animal numbers with

forage production.
Logan County, Oklahoma 193

4. Rest periods during which grazed plants are given enough rest to recover and

to maintain their growth.

It is important to remember that forage production is controlled by rainfall while

composition is determined by grazing management.

Setting the stocking rate is not an exact science because there are influences from

grazing management systems, season of use, mix of livestock, and seasonal forage

production. Some rules of thumb, however, can be helpful. To maintain a nutritional

cover of plants, about 50 percent of the annual growth of the key or most important

grazing plants should remain at the end of the grazing season. Plants can be removed

not only through grazing by livestock but also through grazing by rodents, insects, and

wildlife and through the deterioration caused by climatic variations. Because of these

factors, a safe initial stocking rate for livestock should be calculated on the basis of 25

percent of the total annual growth, by weight, of the vegetation.

For example, production could be 3,500 pounds per acre of air-dry grasses, forbs,

and limited woody species during an average season on a Loamy Prairie ecological

site where the similarity between the present plant community and the historic plant

community is more than 70 percent. Twenty-five percent of this production is 875

pounds per acre.

A 1,000-pound cow and her calf is equivalent to one animal unit (AU) and will

consume about 2.6 percent of her body weight (26 pounds) of forage per day. So, in

one month, an animal unit will consume 790 pounds of native vegetation, depending

on the quality and stage of growth of the plants (26 pounds per day times 365 days per

year divided by 12 months per year).

Dividing 875 pounds (forage allocation) by 26 pounds (forage required per day for

one animal unit) suggests that 1 acre of Loamy Prairie ecological site with a similarity

index of 70 will feed one cow for 33.6 days. To convert forage available from 1 acre to

animal unit month (AUM), the available forage (875 pounds) is divided by the amount

required to feed an animal unit for 1 month (790 pounds). One acre will provide 1.1

AUM of grazing. Therefore, 10.9 acres will feed one cow for 12 months in this example.

Another approach is to calculate the annual forage needs of an animal unit (790

pounds per month times 12 months equals 9,490 pounds). Dividing the 875 pounds of

usable forage per acre into the 9,490 pounds needed by the cow reveals that

approximately 10.9 acres is needed for one cow annually. Stocking rate calculation

should be adjusted for animal size, grazing system, and grazing season.

More information about planning a grazing program is available from the local office

of the Natural Resources Conservation Service.

Ecological Sites

The ecological site identifier has ten characters. The first four characters identify the

major land resource area, the fifth character identifies the major land resource unit

subdivision, the next three characters identify the individual ecological site number,

and the final two characters identify the state. The ecological site identifier is followed

by the proper name for the ecological site. The following paragraphs describe the

ecological sites in Logan County and list the plants that are characteristic of each site.

Detailed ecological site descriptions are available at the local office of the Natural

Resources Conservation Service.

080AY010OK, Claypan Prairie (north).—This site is in areas of nearly level to

gently sloping, deep and very deep, loamy soils. These soils have a dense clayey

subsoil that absorbs water slowly and restricts root penetration. Under good

management, the important plants are little bluestem, switchgrass, leadplant, and

perennial sunflowers. As the site deteriorates, sideoats grama, blue grama, tall

dropseed, wild alfalfa, and buckbrush increase in abundance. Forage production is

moderate.
194 Soil Survey

080AY014OK, Deep Sand.—This site is in areas of nearly level to sloping, very

deep, sandy soils. Forage production is moderate. Areas consist of rolling hills

separated by narrow valleys. Under good management, the important plants are sand

bluestem, indiangrass, switchgrass, little bluestem, and sand lovegrass. As the site

deteriorates, dropseed, blue grama, sandbur, prairie sagewort, skunkbush, and sand

plum increase in abundance.

080AY022OK, Dune.—This site is in areas of very deep, strongly sloping to steep,

sandy soils. Forage production is low. Areas consist of choppy high dunes separated

by narrow valleys. Careful grazing management is needed to prevent the development

of blowout areas. Under good management, the important plants are sand bluestem,

little bluestem, giant sandreed, and sand lovegrass. If this site is abused, Texas

bluegrass, sand paspalum, sandlily, bush morningglory, and skunkbush increase in

abundance.

080AY045OK, Heavy Bottomland.—This site is in areas of nearly level, very gently

sloping, very deep, clayey soils on flood plains. These soils absorb water slowly. Large

cracks are common during droughty periods. Under good management, the important

plants are big bluestem, indiangrass, prairie cordgrass, switchgrass, and perennial

sunflowers. If this site is abused, tall dropseed, goldenrods, sedges, and persimmon

increase in abundance. Forage production is moderate.

080AY050OK, Loamy Bottomland.—This site is in areas of nearly level to sloping,

very deep, loamy soils on flood plains or terraces. Forage production is high. Under

good management, the important plants are big bluestem, indiangrass, eastern

gamagrass, compassplant, and switchgrass. If this site is abused, beaked panicum,

tall dropseed, heath aster, sedges, elm, and greenbrier increase in abundance.

080AY056OK, Loamy Prairie.—This site is in areas where the climax vegetation is

primarily little bluestem, big bluestem, indiangrass, and switchgrass. These plants,

together with Canada wildrye, make up about 70 percent of the vegetation. Under

continuous heavy grazing, the principal grasses are sideoats grama and blue grama.

Leadplant, wildindigo, scurfpea, and prairie acacia are the common legumes.

080AY068OK, Sandy Bottomland.—This site is in areas of nearly level, very

gently sloping, very deep, sandy soils on flood plains or terraces. These soils are

droughty and subject to wind erosion. Forage production is low. Under good

management, the important plants are switchgrass, sand bluestem, indiangrass, and

perennial sunflowers. If this site is abused, beaked panicum, Texas bluegrass,

goldenrods, willow, and cottonwood increase in abundance.

080AY073OK, Sandy Prairie.—This site is in areas of very gently sloping to

undulating, deep, moderately sandy soils on uplands. Forage production is high. The

soils have a moderate water-holding capacity, which benefits root development and

moisture storage. Under good management, the important plants are sand bluestem,

little bluestem, and indiangrass. If this site is subject to continual heavy grazing,

sideoats grama, blue grama, and sand dropseed increase in abundance.

080AY080OK, Shallow Clay Prairie.—This site is in areas of severely eroded,

gently sloping to strongly sloping, shallow, raw, clayey soils that are underlain by shale.

The shale is commonly exposed on the steeper slopes. Vegetation is difficult to

establish. Under good management, the important plants are sideoats grama, little

bluestem, and hairy grama. If this site is subject to continual heavy grazing, grass

cover is reduced and areas of bare soil increase. Carefully managed grazing can

prevent erosion. Forage production is very low. This site has some natural erosion.

080AY083OK, Shallow Prairie.—This site is in areas where the potential plant

community is tall grasses. Species composition, by weight, is 75 percent grasses, 20

percent forbs, and 5 percent woody plants. Big bluestem, indiangrass, switchgrass,

little bluestem, tephrosia, catclaw sensitivebrier, perennial sunflowers, and skunkbush

are preferred plants and make up 65 percent of livestock forage when the site is in

excellent condition. If the site is subject to continuous heavy grazing, these plants are
Logan County, Oklahoma 195

replaced by less palatable plants, such as dropseeds, jointtail, Scribner panicum,

buffalograss, wildindigo, milkweeds, sagewort, sumacs, and indigobush. As the site

deteriorates, other plants, such as broomsedge bluestem, splitbeard, Japanese

brome, showy partridgepea, common broomweed, ragweeds, bitter sneezeweed,

crotons, persimmon, and hawthorn, dominate the site.

080AY090OK, Meadow.—This site is in areas where the vegetation includes

grasses, sedges, rushes, buttonbush, and various broadleaf plants. Willow and

cottonwood trees are common. In these areas, water is ponded for long or very long

periods but the areas typically do not have standing water during the growing season.

For a considerable part of the year, the water table is within a depth of a few inches.

080AY091OK, Slickspot.—This site is in areas of gently sloping, deep and very

deep, loamy soils on uplands. These soils have a clayey, alkali subsoil with blocky

structure. Forage production is low because of a slow rate of water intake, salt content,

and poor aeration. Under good management, the important plants, which are alkali

sacaton, switchgrass, western wheatgrass, tall dropseed, white tridens, and blue

grama, make up 50 percent of the vegetation. Other plants include dotted gayfeather,

whorled dropseed, gummy lovegrass, fall witchgrass, yellow neptunia, mourning

lovegrass, purple threeawn, curlycup gumweed, goldenweed, and hairy goldaster. If

the site is abused, blue grama, silver bluestem, wild alfalfa, lanceleaf ragweed,

threeawn, and western ragweed increase in abundance.

080AY095OK, Subirrigated.—This site is in areas of deep, nearly level, very gently

sloping, sandy soils on uplands or flood plains. These soils have a high water table,

which is beneficial to plant growth. Forage production is high. Under good

management, the important plants are switchgrass, big bluestem, indiangrass, and

eastern gamagrass. If the site is abused, tall dropseed, sideoats grama, sedges,

willow, and cottonwood increase in abundance.

080AY099OK, Depressional Upland.—This site is in areas where, depending

upon the degree of inundation, the dominant plants are willow, switchgrass, prairie

cordgrass, indiangrass, cattails, western wheatgrass, sedges, bristlegrass, Illinois

bundleflower, duckweed, sedges, and other forbs.

080AY810OK, Reseeded Claypan Prairie.—This site is in areas of formerly

cultivated land that typically are seeded to sideoats grama, blue grama, little bluestem,

sand bluestem, and indiangrass. The site may have been damaged by erosion, and

soil fertility is inherently low. If the site is abused, broomweeds and threeawn

dominate.

080AY856OK, Reseeded Loamy Prairie.—This site is in areas where the plant

cover includes big bluestem, switchgrass, little bluestem, indiangrass, and other

seeded species. Native legumes can be abundant. Other important grasses are

jointtail, meadow dropseed, tall dropseed, and hairy grama. Production is much lower

than the Loamy Prairie ecological site due to a lower quality of soil health.

080AY880OK, Reseeded Clay.—This site is in areas of severely eroded, deep,

loamy, upland soils that were formerly cultivated and have a clay subsoil. When

reseeded and well managed, this site can support little bluestem, big bluestem,

indiangrass, switchgrass, and sideoats grama. If the site is abused, annual threeawn,

western ragweed, blue grama, buffalograss, and common broomweed dominate.

Carefully managing grazing can prevent erosion. Forage production is very low.

080AY883OK, Reseeded Shallow Prairie.—This site is in areas where the seeded

grasses include sideoats grama and native bluestem mixes. If the site is heavily

grazed, the dominant plants are hairy grama, buffalograss, dropseed, silver bluestem,

cheatgrass, broomweed, western ragweed, and other weedy grasses and forbs.

Because of past use and erosion, this site is not productive.

084AY018OK, Deep Sand Savannah.—This site is in areas of very gently sloping

to moderately steep, very deep, sandy soils on uplands. Under good management, the

important plants consist of an overstory of post oak and blackjack oak and an
196 Soil Survey

understory of big bluestem, sand lovegrass, and switchgrass. The trees occur in thick

stands or in scattered stands. As trees thicken, herbaceous vegetation decreases in

abundance. If the site is abused, tall dropseed, purpletop, Scribner panicum,

heathaster, white snakeroot, splitbeard bluestem, broomsedge bluestem, winged elm,

hickory, buckbrush, sumac, and shrubby oak increase in abundance. Eastern redcedar

can increase in abundance if the site is not subject to fires.

084AY050OK, Loamy Bottomland.—This site is in areas where the pristine plant

community is tall grasses. Species composition, by weight, is 70 percent grasses, 20

percent forbs, and 10 percent woody plants. Eastern gamagrass, Florida paspalum,

prairie cordgrass, big bluestem, indiangrass, switchgrass, switchcane, leadplant,

Illinois bundleflower, compassplant, gayfeather, and passion vine are the major plants

and make up 75 percent of the production when the site is in top ecological condition.

If the site is heavily grazed, these plants are replaced by such plants as little bluestem,

tall dropseed, Scribner panicum, sedges, rushes, wildindigo, perennial sunflowers,

goldenrods, trumpetvine, winged elm, sumacs, and indigobush. As the site

deteriorates, unpalatable plants, such as silver bluestem, splitbeard bluestem,

broomsedge bluestem, sideoats grama, Japanese brome, threeawns, showy

partridgepea, ragweeds, bitter sneezeweed, ironweed, white snakeroot, persimmon,

hawthorn, post oak, and blackjack oak, dominate.

084AY076OK, Sandy Savannah (central).—This site is in areas where the

decreaser grasses are little bluestem, indiangrass, big bluestem, and switchgrass.

These grasses make up at least 45 percent of the total vegetation. Canada wildrye,

Virginia wildrye, Texas bluegrass, and flatsedge are cool-season species. Woody

species include post oak, blackjack oak, hickory, ash, elm, bumelia, coralberry,

persimmon, poison ivy, grape, and hackberry. These species should not exceed 20

percent of the total cover.

084AY089OK, Shallow Savannah.—This site is in areas that have a savannah

where 15 percent of the coverage is post oak, blackjack oak, and other scrub woody

species of little commercial value. The principal grasses, which make up 55 to 65

percent of the vegetation, include little bluestem, big bluestem, switchgrass,

indiangrass, and Canada wildrye. The less dominant grasses are hairy grama, tall

dropseed, and meadow dropseed. Invader plants include splitbeard, silver bluestem,

eastern redcedar, and threeawn.

084AY095OK, Subirrigated.—This site is in areas of very deep, nearly level and

very gently sloping, sandy soils on flood plains. These soils have a high water table,

which is beneficial to plant growth. Forage production is high. Under good

management, the important plants are switchgrass, big bluestem, indiangrass, and

eastern gamagrass. If the site is subject to continual abuse, tall dropseed, sideoats

grama, sedges, willow, and cottonwood increase in abundance.

084AY876OK, Reseeded Sandy Savannah.—This site is in areas where former

cropland is typically seeded to a mixture of big bluestem, little bluestem, indiangrass,

switchgrass, sideoats grama, and other grasses. If the land is abused, these plants are

replaced by red lovegrass, gummy lovegrass, dropseeds, Scribner panicum, fall

witchgrass, wild buckwheat, ragweed, and sandbur.

084AY889OK, Reseeded Shallow Savannah.—This site is in areas where the

principal seeded grasses are little bluestem, blue grama, and sideoats grama. Other

grasses include big bluestem, indiangrass, and switchgrass. As the site deteriorates,

grasses such as red lovegrass, mourning lovegrass, and splitbeard bluestem increase

in abundance.

Windbreaks and Environmental Plantings

Windbreaks protect livestock, buildings, and yards from wind and snow. They also

protect fruit trees and gardens, and they furnish habitat for wildlife. Several rows of
Logan County, Oklahoma 197

low- and high-growing broadleaf and coniferous trees and shrubs provide the most

protection.

Field windbreaks are narrow plantings made at right angles to the prevailing wind

and at specific intervals across the field. The interval depends on the erodibility of the

soil. Field windbreaks protect cropland and crops from wind, help to keep snow on the

fields, and provide food and cover for wildlife.

Environmental plantings help to beautify and screen houses and other buildings and

to abate noise. The plants, mostly evergreen shrubs and trees, are closely spaced. To

ensure plant survival, a healthy planting stock of suitable species should be planted

properly on a well prepared site and maintained in good condition.

Windbreaks are often planted on land that did not originally support trees.

Knowledge of how trees perform on such land can be gained only by observing and

recording the performance of trees that have been planted and have survived. Many

popular windbreak species are not indigenous to the areas in which they are planted.

Each tree or shrub species has certain climatic and physiographic limits. Within

these parameters, a tree or shrub may grow well or grow poorly, depending on the

characteristics of the soil. Each tree or shrub has definable potential heights in a given

physiographic area and under given climatic conditions. Accurate definitions of

potential heights are necessary when a windbreak is planned and designed.

The table “Windbreaks and Environmental Plantings” shows the height that locally

grown trees and shrubs are expected to reach in 20 years on the soils in Logan

County. The estimates in this table are based on measurements and observation of

established plantings that have been given adequate care. They can be used as a

guide in planning windbreaks and screens. Additional information on planning

windbreaks and screens and planting and caring for trees and shrubs can be obtained

from the local office of the Natural Resources Conservation Service or the

Cooperative Extension Service or from a local nursery.
198 Soil Survey Windbreaks and Environmental Plantings (Absence of an entry indicates that trees generally do not grow to the given height) __________________________________________________________________________________________________________________________________ Map symbol | Trees having predicted 20-year average height, in feet, of-- ________________________________________________________________________________________________________ and soil name | <8 | 8-15 | 16-25 | 26-35 | >35 __________________________________________________________________________________________________________________________________ | | | | | AspA, AstA: | | | | | Ashport-----------------| --- |common lilac, shrub |eastern redbud, |Osage-orange, red | --- | | lespedeza, Amur | Rocky Mountain | mulberry, common | | | honeysuckle, | juniper, oriental | hackberry, green | | | American plum | arborvitae, | ash, lacebark elm, | | | | Austrian pine, bur | black locust | | | | oak | | | | | | | BetA, BetB: | | | | | Bethany-----------------|American plum |common lilac, Amur |bur oak, |loblolly pine | --- | | honeysuckle, | Osage-orange, | | | | eastern redbud, | ponderosa pine, red| | | | oriental arborvitae| mulberry, black | | | | | locust, common | | | | | hackberry, lacebark| | | | | elm | | | | | | | BocA. | | | | | Bocox | | | | | | | | | | BtlA. | | | | | Bathel | | | | | | | | | | CaaA: | | | | | Canadian----------------|American plum |eastern redbud, |Austrian pine, bur | --- | --- | | oriental | oak, common | | | | arborvitae, Rocky | hackberry, lacebark| | | | Mountain juniper | elm, ponderosa | | | | | pine, green ash, | | | | | black locust, | | | | | loblolly pine | | | | | | | CAID: | | | | | Coyle-------------------|American plum |eastern redbud, |bur oak, common | --- | --- | | oriental | hackberry, lacebark| | | | arborvitae, Rocky | elm, Osage-orange, | | | | Mountain juniper | ponderosa pine, | | | | | green ash, black | | | | | locust | | | | | | | Ashport-----------------| --- |common lilac, shrub |eastern redbud, |Osage-orange, red | --- | | lespedeza, Amur | Rocky Mountain | mulberry, common | | | honeysuckle, | juniper, oriental | hackberry, green | | | American plum | arborvitae, | ash, lacebark elm, | | | | Austrian pine, bur | black locust | | | | oak | | | | | | | Ironmound. | | | | |
Logan County, Oklahoma 199 Windbreaks and Environmental Plantings—Continued __________________________________________________________________________________________________________________________________ Map symbol | Trees having predicted 20-year average height, in feet, of-- ________________________________________________________________________________________________________ and soil name | <8 | 8-15 | 16-25 | 26-35 | >35 __________________________________________________________________________________________________________________________________ | | | | | CoIC2: | | | | | Coyle-------------------|American plum |eastern redbud, |bur oak, common | --- | --- | | oriental | hackberry, lacebark| | | | arborvitae, Rocky | elm, Osage-orange, | | | | Mountain juniper | ponderosa pine, | | | | | green ash, black | | | | | locust | | | | | | | Ironmound. | | | | | | | | | | CoUB: | | | | | Coyle-------------------|American plum |eastern redbud, |Austrian pine, Rocky| --- | --- | | oriental arborvitae| Mountain juniper, | | | | | common hackberry, | | | | | lacebark elm, | | | | | Osage-orange, | | | | | ponderosa pine, red| | | | | mulberry, bur oak, | | | | | green ash, black | | | | | locust, loblolly | | | | | pine | | | | | | | Urban land. | | | | | | | | | | CoUC: | | | | | Coyle-------------------|American plum |eastern redbud, |bur oak, common | --- | --- | | oriental | hackberry, lacebark| | | | arborvitae, Rocky | elm, Osage-orange, | | | | Mountain juniper | ponderosa pine, | | | | | green ash, black | | | | | locust | | | | | | | Urban land. | | | | | | | | | | CoyB, CoyC2: | | | | | Coyle-------------------|American plum |eastern redbud, |bur oak, common | --- | --- | | oriental | hackberry, lacebark| | | | arborvitae, Rocky | elm, Osage-orange, | | | | Mountain juniper | ponderosa pine, | | | | | green ash, black | | | | | locust | | | | | | | CoZC3: | | | | | Coyle-------------------|American plum |eastern redbud, |bur oak, common | --- | --- | | oriental | hackberry, lacebark| | | | arborvitae, Rocky | elm, Osage-orange, | | | | Mountain juniper | ponderosa pine, | | | | | green ash, black | | | | | locust | | | | | | |
200 Soil Survey Windbreaks and Environmental Plantings—Continued __________________________________________________________________________________________________________________________________ Map symbol | Trees having predicted 20-year average height, in feet, of-- ________________________________________________________________________________________________________ and soil name | <8 | 8-15 | 16-25 | 26-35 | >35 __________________________________________________________________________________________________________________________________ | | | | | CoZC3: | | | | | Zaneis------------------|American plum |common lilac, Amur |bur oak, |loblolly pine | --- | | honeysuckle, | Osage-orange, | | | | eastern redbud, | ponderosa pine, red| | | | oriental arborvitae| mulberry, black | | | | | locust, common | | | | | hackberry, lacebark| | | | | elm | | | | | | | DAM. | | | | | Dam | | | | | | | | | | DerB, DerD, DerE: | | | | | Derby-------------------|American plum | --- |Rocky Mountain |black locust | --- | | | juniper, bur oak, | | | | | oriental | | | | | arborvitae, | | | | | ponderosa pine, | | | | | Austrian pine, | | | | | Osage-orange, | | | | | common hackberry, | | | | | green ash, lacebark| | | | | elm, loblolly pine | | | | | | | DiRG. | | | | | Darsil-Rock outcrop | | | | | | | | | | DouB, DouD: | | | | | Dougherty---------------|American plum |eastern redbud, |oriental arborvitae,|black locust, | --- | | Rocky Mountain | bur oak, Austrian | loblolly pine | | | juniper | pine, Chinese elm, | | | | | common hackberry, | | | | | green ash, | | | | | Osage-orange | | | | | | | DUM. | | | | | Dumps | | | | | | | | | | EasA: | | | | | Easpur------------------| --- |common lilac, shrub |eastern redbud, |Osage-orange, red | --- | | lespedeza, Amur | Rocky Mountain | mulberry, common | | | honeysuckle, | juniper, oriental | hackberry, green | | | American plum | arborvitae, | ash, lacebark elm, | | | | Austrian pine, bur | black locust | | | | oak | | | | | | |
Logan County, Oklahoma 201 Windbreaks and Environmental Plantings—Continued __________________________________________________________________________________________________________________________________ Map symbol | Trees having predicted 20-year average height, in feet, of-- ________________________________________________________________________________________________________ and soil name | <8 | 8-15 | 16-25 | 26-35 | >35 __________________________________________________________________________________________________________________________________ | | | | | GadA: | | | | | Gaddy-------------------|American plum | --- |Rocky Mountain |black locust | --- | | | juniper, bur oak, | | | | | oriental | | | | | arborvitae, | | | | | ponderosa pine, | | | | | Austrian pine, | | | | | Osage-orange, | | | | | common hackberry, | | | | | green ash, lacebark| | | | | elm, loblolly pine | | | | | | | GaGA: | | | | | Gaddy-------------------|American plum |eastern redbud, |Austrian pine, bur | --- | --- | | oriental | oak, common | | | | arborvitae, Rocky | hackberry, lacebark| | | | Mountain juniper | elm, ponderosa | | | | | pine, green ash, | | | | | black locust, | | | | | loblolly pine | | | | | | | Gracemore. | | | | | | | | | | GMGE4: | | | | | Grainola----------------|American plum |eastern redbud, |bur oak, common | --- | --- | | oriental | hackberry, lacebark| | | | arborvitae, Rocky | elm, Osage-orange, | | | | Mountain juniper | ponderosa pine, | | | | | green ash, black | | | | | locust | | | | | | | Masham. | | | | | | | | | | Gullied land. | | | | | | | | | | GMLG: | | | | | Grainola----------------|American plum |eastern redbud, |bur oak, common | --- | --- | | oriental | hackberry, lacebark| | | | arborvitae, Rocky | elm, Osage-orange, | | | | Mountain juniper | ponderosa pine, | | | | | green ash, black | | | | | locust | | | | | | | Masham. | | | | | | | | | | Lucien. | | | | | | | | | |
202 Soil Survey Windbreaks and Environmental Plantings—Continued __________________________________________________________________________________________________________________________________ Map symbol | Trees having predicted 20-year average height, in feet, of-- ________________________________________________________________________________________________________ and soil name | <8 | 8-15 | 16-25 | 26-35 | >35 __________________________________________________________________________________________________________________________________ | | | | | GohC: | | | | | Goodnight---------------|American plum |eastern redbud, |Austrian pine, Rocky|black locust, | --- | | oriental arborvitae| Mountain juniper, | loblolly pine | | | | bur oak, common | | | | | hackberry, green | | | | | ash, ponderosa | | | | | pine, lacebark elm,| | | | | Osage-orange | | | | | | | GohE, GooE, GooG: | | | | | Goodnight---------------|American plum | --- |Rocky Mountain |black locust | --- | | | juniper, bur oak, | | | | | oriental | | | | | arborvitae, | | | | | ponderosa pine, | | | | | Austrian pine, | | | | | Osage-orange, | | | | | common hackberry, | | | | | green ash, lacebark| | | | | elm, loblolly pine | | | | | | | GraC, GraD2: | | | | | Grainola----------------|American plum |eastern redbud, |bur oak, common | --- | --- | | oriental | hackberry, lacebark| | | | arborvitae, Rocky | elm, Osage-orange, | | | | Mountain juniper | ponderosa pine, | | | | | green ash, black | | | | | locust | | | | | | | GrHC: | | | | | Grant-------------------|shrub lespedeza |Amur honeysuckle, |eastern redbud, |Osage-orange, bur | --- | | American plum | Scotch pine, Rocky | oak, common | | | | Mountain juniper, | hackberry, green | | | | oriental | ash, lacebark elm, | | | | arborvitae, red | black locust | | | | mulberry, Austrian | | | | | pine, ponderosa | | | | | pine | | | | | | | Huska. | | | | | | | | | | GrIE: | | | | | Grainola----------------|sand plum |eastern redbud, |bur oak, common | --- | --- | | oriental | hackberry, lacebark| | | | arborvitae, Rocky | elm, Osage-orange, | | | | Mountain juniper | ponderosa pine, | | | | | green ash, black | | | | | locust | | | | | | | Ironmound. | | | | | | | | | |
Logan County, Oklahoma 203 Windbreaks and Environmental Plantings—Continued __________________________________________________________________________________________________________________________________ Map symbol | Trees having predicted 20-year average height, in feet, of-- ________________________________________________________________________________________________________ and soil name | <8 | 8-15 | 16-25 | 26-35 | >35 __________________________________________________________________________________________________________________________________ | | | | | GrLE: | | | | | Grainola----------------|American plum |eastern redbud, |bur oak, common | --- | --- | | oriental | hackberry, lacebark| | | | arborvitae, Rocky | elm, Osage-orange, | | | | Mountain juniper | ponderosa pine, | | | | | green ash, black | | | | | locust | | | | | | | Lucien. | | | | | | | | | | HaGD4: | | | | | Harrah------------------| --- |shrub lespedeza, |Rocky Mountain |Austrian pine, bur |black locust | | Amur honeysuckle, | juniper, eastern | oak, Osage-orange, | | | American plum | redbud, ponderosa | red mulberry, | | | | pine, oriental | common hackberry, | | | | arborvitae, Scotch | green ash, lacebark| | | | pine | elm | | | | | | Gullied land. | | | | | | | | | | HarC, HarC2, HarG: | | | | | Harrah------------------| --- |shrub lespedeza, |Rocky Mountain |Austrian pine, bur |black locust | | Amur honeysuckle, | juniper, eastern | oak, Osage-orange, | | | American plum | redbud, ponderosa | red mulberry, | | | | pine, oriental | common hackberry, | | | | arborvitae, Scotch | green ash, lacebark| | | | pine | elm | | | | | | HawB: | | | | | Hawley------------------|shrub lespedeza |Amur honeysuckle, |eastern redbud, |Osage-orange, bur | --- | | American plum | Scotch pine, Rocky | oak, common | | | | Mountain juniper, | hackberry, green | | | | oriental | ash, lacebark elm, | | | | arborvitae, red | black locust | | | | mulberry, Austrian | | | | | pine, ponderosa | | | | | pine | | | | | | | ICGD3: | | | | | Ironmound. | | | | | | | | | | Coyle-------------------|American plum |eastern redbud, |bur oak, common | --- | --- | | oriental | hackberry, lacebark| | | | arborvitae, Rocky | elm, Osage-orange, | | | | Mountain juniper | ponderosa pine, | | | | | green ash, black | | | | | locust | | | | | | |
204 Soil Survey Windbreaks and Environmental Plantings—Continued __________________________________________________________________________________________________________________________________ Map symbol | Trees having predicted 20-year average height, in feet, of-- ________________________________________________________________________________________________________ and soil name | <8 | 8-15 | 16-25 | 26-35 | >35 __________________________________________________________________________________________________________________________________ | | | | | ICGD3: | | | | | Grainola----------------|American plum |eastern redbud, |bur oak, common | --- | --- | | oriental | hackberry, lacebark| | | | arborvitae, Rocky | elm, Osage-orange, | | | | Mountain juniper | ponderosa pine, | | | | | green ash, black | | | | | locust | | | | | | | IrCE: | | | | | Ironmound. | | | | | | | | | | Coyle-------------------|American plum |eastern redbud, |bur oak, common | --- | --- | | oriental | hackberry, lacebark| | | | arborvitae, Rocky | elm, Osage-orange, | | | | Mountain juniper | ponderosa pine, | | | | | green ash, black | | | | | locust | | | | | | | IroC2. | | | | | Ironmound | | | | | | | | | | KgfB, KinC2: | | | | | Kingfisher--------------|American plum |eastern redbud, |bur oak, common | --- | --- | | oriental | hackberry, lacebark| | | | arborvitae, Rocky | elm, Osage-orange, | | | | Mountain juniper | ponderosa pine, | | | | | green ash, black | | | | | locust | | | | | | | KonB, KonD2: | | | | | Konawa------------------| --- |shrub lespedeza, |Rocky Mountain |Austrian pine, bur |black locust | | Amur honeysuckle, | juniper, eastern | oak, Osage-orange, | | | American plum | redbud, ponderosa | red mulberry, | | | | pine, oriental | common hackberry, | | | | arborvitae, Scotch | green ash, lacebark| | | | pine | elm | | | | | | KrdA, KrkB: | | | | | Kirkland----------------|American plum, Amur |eastern redbud, |bur oak, |loblolly pine | --- | honeysuckle, common| oriental arborvitae| Osage-orange, | | | lilac | | ponderosa pine, red| | | | | mulberry, black | | | | | locust, common | | | | | hackberry, lacebark| | | | | elm | | | | | | |
Logan County, Oklahoma 205 Windbreaks and Environmental Plantings—Continued __________________________________________________________________________________________________________________________________ Map symbol | Trees having predicted 20-year average height, in feet, of-- ________________________________________________________________________________________________________ and soil name | <8 | 8-15 | 16-25 | 26-35 | >35 __________________________________________________________________________________________________________________________________ | | | | | LarA, LawA: | | | | | Lawrie------------------|shrub lespedeza |Amur honeysuckle, |eastern redbud, |Osage-orange, bur | --- | | American plum | Scotch pine, Rocky | oak, common | | | | Mountain juniper, | hackberry, green | | | | oriental | ash, lacebark elm, | | | | arborvitae, red | black locust | | | | mulberry, Austrian | | | | | pine, ponderosa | | | | | pine | | | | | | | LerA. | | | | | Lebron | | | | | | | | | | LitB: | | | | | Littleaxe---------------| --- |Amur honeysuckle, |Rocky Mountain |Osage-orange, red | --- | | American plum | juniper, eastern | mulberry, Austrian | | | | redbud, ponderosa | pine, green ash, | | | | pine, oriental | common hackberry, | | | | arborvitae, Scotch | lacebark elm | | | | pine | | | | | | | LitC2: | | | | | Littleaxe---------------|American plum |Rocky Mountain |oriental arborvitae,| --- | --- | | juniper, eastern | Austrian pine, | | | | redbud | common hackberry, | | | | | green ash, lacebark| | | | | elm, Osage-orange, | | | | | Shumard's oak | | | | | | | M-W. | | | | | Miscellaneous water | | | | | | | | | | MaID, MaIG. | | | | | Masham-Ironmound | | | | | | | | | | MinB, MinC, MinD, MinF: | | | | | Minco-------------------|shrub lespedeza |Amur honeysuckle, |eastern redbud, |Osage-orange, bur | --- | | American plum | Scotch pine, Rocky | oak, common | | | | Mountain juniper, | hackberry, green | | | | oriental | ash, lacebark elm, | | | | arborvitae, red | black locust | | | | mulberry, Austrian | | | | | pine, ponderosa | | | | | pine | | | | | | |
206 Soil Survey Windbreaks and Environmental Plantings—Continued __________________________________________________________________________________________________________________________________ Map symbol | Trees having predicted 20-year average height, in feet, of-- ________________________________________________________________________________________________________ and soil name | <8 | 8-15 | 16-25 | 26-35 | >35 __________________________________________________________________________________________________________________________________ | | | | | MllA: | | | | | Miller------------------|American plum |common lilac, Amur |bur oak, |loblolly pine | --- | | honeysuckle, | Osage-orange, | | | | eastern redbud, | ponderosa pine, red| | | | oriental arborvitae| mulberry, black | | | | | locust, common | | | | | hackberry, lacebark| | | | | elm | | | | | | | MulC, MulC2: | | | | | Mulhall-----------------|shrub lespedeza |Amur honeysuckle, |eastern redbud, |Osage-orange, bur | --- | | American plum | Scotch pine, Rocky | oak, common | | | | Mountain juniper, | hackberry, green | | | | oriental | ash, lacebark elm, | | | | arborvitae, red | black locust | | | | mulberry, Austrian | | | | | pine, ponderosa | | | | | pine | | | | | | | NavA, NavB: | | | | | Navina------------------|shrub lespedeza |Amur honeysuckle, |eastern redbud, |Osage-orange, bur | --- | | American plum | Scotch pine, Rocky | oak, common | | | | Mountain juniper, | hackberry, green | | | | oriental | ash, lacebark elm, | | | | arborvitae, red | black locust | | | | mulberry, Austrian | | | | | pine, ponderosa | | | | | pine | | | | | | | NeGD4: | | | | | Newalla-----------------| --- |American plum, Amur |ponderosa pine, bur |common hackberry, | --- | | honeysuckle, common| oak, Osage-orange, | lacebark elm, | | | lilac, eastern | black locust, red | loblolly pine | | | redbud, oriental | mulberry | | | | arborvitae | | | | | | | | Gullied land. | | | | | | | | | | NewB: | | | | | Newalla-----------------| --- |American plum, Amur |ponderosa pine, bur |common hackberry, | --- | | honeysuckle, common| oak, Osage-orange, | lacebark elm, | | | lilac, eastern | black locust, red | loblolly pine | | | redbud, oriental | mulberry | | | | arborvitae | | | | | | | |
Logan County, Oklahoma 207 Windbreaks and Environmental Plantings—Continued __________________________________________________________________________________________________________________________________ Map symbol | Trees having predicted 20-year average height, in feet, of-- ________________________________________________________________________________________________________ and soil name | <8 | 8-15 | 16-25 | 26-35 | >35 __________________________________________________________________________________________________________________________________ | | | | | NorA, NorB, NorC2: | | | | | Norge-------------------|American plum |common lilac, Amur |bur oak, |loblolly pine | --- | | honeysuckle, | Osage-orange, | | | | eastern redbud, | ponderosa pine, red| | | | oriental arborvitae| mulberry, black | | | | | locust, common | | | | | hackberry, lacebark| | | | | elm | | | | | | | OWHD. | | | | | Oil waste land-Huska | | | | | | | | | | PieB, PieC2: | | | | | Piedmont----------------|American plum |eastern redbud, |bur oak, common | --- | --- | | oriental | hackberry, lacebark| | | | arborvitae, Rocky | elm, Osage-orange, | | | | Mountain juniper | ponderosa pine, | | | | | green ash, black | | | | | locust | | | | | | | PIT. | | | | | Pits | | | | | | | | | | PukA, PulA: | | | | | Pulaski-----------------| --- |shrub lespedeza, |Rocky Mountain |Austrian pine, bur |black locust | | Amur honeysuckle, | juniper, eastern | oak, Osage-orange, | | | American plum | redbud, ponderosa | red mulberry, | | | | pine, oriental | common hackberry, | | | | arborvitae, Scotch | green ash, lacebark| | | | pine | elm | | | | | | RenB, RenC, RewC2: | | | | | Renfrow-----------------|American plum, Amur |eastern redbud, |bur oak, |loblolly pine | --- | honeysuckle, common| oriental arborvitae| Osage-orange, | | | lilac | | ponderosa pine, red| | | | | mulberry, black | | | | | locust, common | | | | | hackberry, lacebark| | | | | elm | | | | | | | RinB, RnnC2: | | | | | Renthin-----------------|American plum, Amur |eastern redbud, |bur oak, |loblolly pine | --- | honeysuckle, common| oriental arborvitae| Osage-orange, | | | lilac | | ponderosa pine, red| | | | | mulberry, black | | | | | locust, common | | | | | hackberry, lacebark| | | | | elm | | | | | | |
208 Soil Survey Windbreaks and Environmental Plantings—Continued __________________________________________________________________________________________________________________________________ Map symbol | Trees having predicted 20-year average height, in feet, of-- ________________________________________________________________________________________________________ and soil name | <8 | 8-15 | 16-25 | 26-35 | >35 __________________________________________________________________________________________________________________________________ | | | | | SDGD4: | | | | | Stephenville------------|American plum |Rocky Mountain |oriental arborvitae,| --- | --- | | juniper, eastern | Osage-orange, | | | | redbud | common hackberry, | | | | | lacebark elm, green| | | | | ash | | | | | | | Darsil. | | | | | | | | | | Gullied land. | | | | | | | | | | SDND: | | | | | Stephenville------------|American plum |Rocky Mountain |oriental arborvitae,| --- | --- | | juniper, eastern | Osage-orange, bur | | | | redbud | oak, common | | | | | hackberry, lacebark| | | | | elm, black locust, | | | | | green ash | | | | | | | Darsil. | | | | | | | | | | Newalla-----------------| --- |American plum, Amur |ponderosa pine, bur |common hackberry, | --- | | honeysuckle, common| oak, Osage-orange, | lacebark elm, | | | lilac, eastern | black locust, red | loblolly pine | | | redbud, oriental | mulberry | | | | arborvitae | | | | | | | | SDND2: | | | | | Stephenville------------|American plum |Rocky Mountain |oriental arborvitae,| --- | --- | | juniper, eastern | Osage-orange, | | | | redbud | common hackberry, | | | | | lacebark elm, green| | | | | ash | | | | | | | Darsil. | | | | | | | | | | Newalla-----------------| --- |American plum, Amur |ponderosa pine, bur |common hackberry, | --- | | honeysuckle, common| oak, Osage-orange, | lacebark elm, | | | lilac, eastern | black locust, red | loblolly pine | | | redbud, oriental | mulberry | | | | arborvitae | | | | | | | | SlaB: | | | | | Slaughterville----------|shrub lespedeza |Amur honeysuckle, |eastern redbud, |Osage-orange, bur | --- | | American plum | Scotch pine, Rocky | oak, common | | | | Mountain juniper, | hackberry, green | | | | oriental | ash, lacebark elm, | | | | arborvitae, red | black locust | | | | mulberry, Austrian | | | | | pine, ponderosa | | | | | pine | |
Logan County, Oklahoma 209 Windbreaks and Environmental Plantings—Continued __________________________________________________________________________________________________________________________________ Map symbol | Trees having predicted 20-year average height, in feet, of-- ________________________________________________________________________________________________________ and soil name | <8 | 8-15 | 16-25 | 26-35 | >35 __________________________________________________________________________________________________________________________________ | | | | | SlaD, SlaF: | | | | | Slaughterville----------|American plum |eastern redbud, |Austrian pine, bur | --- | --- | | oriental | oak, common | | | | arborvitae, Rocky | hackberry, lacebark| | | | Mountain juniper | elm, ponderosa | | | | | pine, green ash, | | | | | black locust, | | | | | loblolly pine | | | | | | | StDC: | | | | | Stephenville------------|American plum |Rocky Mountain |oriental arborvitae,| --- | --- | | juniper, eastern | Osage-orange, bur | | | | redbud | oak, common | | | | | hackberry, lacebark| | | | | elm, black locust, | | | | | green ash | | | | | | | Darsil. | | | | | | | | | | StDC2: | | | | | Stephenville------------|American plum |Rocky Mountain |oriental arborvitae,| --- | --- | | juniper, eastern | Osage-orange, | | | | redbud | common hackberry, | | | | | lacebark elm, green| | | | | ash | | | | | | | Darsil. | | | | | | | | | | StDE: | | | | | Stephenville------------|American plum |Rocky Mountain |oriental arborvitae,| --- | --- | | juniper, eastern | Osage-orange, bur | | | | redbud | oak, common | | | | | hackberry, lacebark| | | | | elm, black locust, | | | | | green ash | | | | | | | Darsil. | | | | | | | | | | SteB, SteC2: | | | | | Stephenville------------|American plum |Rocky Mountain |oriental arborvitae,| --- | --- | | juniper, eastern | Osage-orange, | | | | redbud | common hackberry, | | | | | lacebark elm, green| | | | | ash | | | | | | |
210 Soil Survey Windbreaks and Environmental Plantings—Continued __________________________________________________________________________________________________________________________________ Map symbol | Trees having predicted 20-year average height, in feet, of-- ________________________________________________________________________________________________________ and soil name | <8 | 8-15 | 16-25 | 26-35 | >35 __________________________________________________________________________________________________________________________________ | | | | | SUND: | | | | | Stephenville------------|American plum |Rocky Mountain |oriental arborvitae,| --- | --- | | juniper, eastern | Osage-orange, | | | | redbud | common hackberry, | | | | | lacebark elm, green| | | | | ash | | | | | | | Urban land. | | | | | | | | | | Newalla-----------------| --- |American plum, Amur |ponderosa pine, bur |common hackberry, | --- | | honeysuckle, common| oak, Osage-orange, | lacebark elm, | | | lilac, eastern | black locust, red | loblolly pine | | | redbud, oriental | mulberry | | | | arborvitae | | | | | | | | TelB, TelC2: | | | | | Teller------------------|shrub lespedeza |Amur honeysuckle, |eastern redbud, |Osage-orange, bur | --- | | American plum | Scotch pine, Rocky | oak, common | | | | Mountain juniper, | hackberry, green | | | | oriental | ash, lacebark elm, | | | | arborvitae, red | black locust | | | | mulberry, Austrian | | | | | pine, ponderosa | | | | | pine | | | | | | | TriA. | | | | | Tribbey | | | | | | | | | | URB. | | | | | Urban land | | | | | | | | | | W. | | | | | Water | | | | | | | | | | YaaA, YahA: | | | | | Yahola------------------| --- |common lilac, shrub |eastern redbud, |Osage-orange, red | --- | | lespedeza, Amur | Rocky Mountain | mulberry, common | | | honeysuckle, | juniper, oriental | hackberry, green | | | American plum | arborvitae, | ash, lacebark elm, | | | | Austrian pine, bur | black locust | | | | oak | | | | | | |
Logan County, Oklahoma 211 Windbreaks and Environmental Plantings—Continued __________________________________________________________________________________________________________________________________ Map symbol | Trees having predicted 20-year average height, in feet, of-- ________________________________________________________________________________________________________ and soil name | <8 | 8-15 | 16-25 | 26-35 | >35 __________________________________________________________________________________________________________________________________ | | | | | ZaHC: | | | | | Zaneis------------------| --- |American plum, Amur |ponderosa pine, bur |black locust | --- | | honeysuckle, common| oak, red mulberry, | | | | lilac, eastern | Osage-orange, | | | | redbud, oriental | common hackberry, | | | | arborvitae | lacebark elm, | | | | | loblolly pine | | | | | | | Huska. | | | | | | | | | | ZanB: | | | | | Zaneis------------------|American plum |eastern redbud, |Austrian pine, Rocky|black locust, | --- | | oriental arborvitae| Mountain juniper, | loblolly pine | | | | bur oak, common | | | | | hackberry, green | | | | | ash, ponderosa | | | | | pine, lacebark elm,| | | | | Osage-orange | | | | | | | ZanC, ZanC2: | | | | | Zaneis------------------|American plum |common lilac, Amur |bur oak, |loblolly pine | --- | | honeysuckle, | Osage-orange, | | | | eastern redbud, | ponderosa pine, red| | | | oriental arborvitae| mulberry, black | | | | | locust, common | | | | | hackberry, lacebark| | | | | elm | | | | | | | __________________________________________________________________________________________________________________________________
212 Soil Survey

Recreation

The soils of the survey area are rated in tables “Recreational Development, Part I”

and “Recreational Development, Part II” according to limitations that affect their

suitability for recreation. The ratings are both verbal and numerical. Rating class terms

indicate the extent to which the soils are limited by all of the soil features that affect the

recreational uses.

Not limited indicates that the soil has features that are very favorable for the

specified use. Good performance and very low maintenance can be expected.

Somewhat limited indicates that the soil has features that are moderately favorable

for the specified use. The limitations can be overcome or minimized by special

planning, design, or installation. Fair performance and moderate maintenance can be

expected.

Very limited indicates that the soil has one or more features that are unfavorable for

the specified use. The limitations generally cannot be overcome without major soil

reclamation, special design, or expensive installation procedures. Poor performance

and high maintenance can be expected.

Numerical ratings in the tables indicate the severity of individual limitations. The

ratings are shown as decimal fractions ranging from 0.01 to 1.00. They indicate

gradations between the point at which a soil feature has the greatest negative impact

on the use (1.00) and the point at which the soil feature is not a limitation (0.00).

The ratings in the tables are based on restrictive soil features, such as wetness,

slope, and texture of the surface layer. Susceptibility to flooding is considered. Not

considered in the ratings, but important in evaluating a site, are the location and

accessibility of the area, the size and shape of the area and its scenic quality,

vegetation, access to water, potential water impoundment sites, and access to public

sewer lines. The capacity of the soil to absorb septic tank effluent and the ability of the

soil to support vegetation also are important. Soils that are subject to flooding are

limited for recreational uses by the duration and intensity of flooding and the season

when flooding occurs. In planning recreational facilities, onsite assessment of the

height, duration, intensity, and frequency of flooding is essential.

The information in the tables “Recreational Development, Part I” and “Recreational

Development, Part II” can be supplemented by other information in this survey, for

example, interpretations for building site development, construction materials, sanitary

facilities, and water management.

Camp areas require site preparation, such as shaping and leveling the tent and

parking areas, stabilizing roads and intensively used areas, and installing sanitary

facilities and utility lines. Camp areas are subject to heavy foot traffic and some

vehicular traffic. The ratings are based on the soil properties that affect the ease of

developing camp areas and the performance of the areas after development. Slope,

stoniness, and depth to bedrock or a cemented pan are the main concerns affecting

the development of camp areas. The soil properties that affect the performance of the

areas after development are those that influence trafficability and promote the growth

of vegetation, especially in heavily used areas. For good trafficability, the surface of

camp areas should absorb rainfall readily, remain firm under heavy foot traffic, and not

be dusty when dry. The soil properties that influence trafficability are texture of the

surface layer, depth to a water table, ponding, flooding, permeability, and large stones.

The soil properties that affect the growth of plants are depth to bedrock or a cemented

pan, permeability, and toxic substances in the soil.

Picnic areas are subject to heavy foot traffic. Most vehicular traffic is confined to

access roads and parking areas. The ratings are based on the soil properties that

affect the ease of developing picnic areas and that influence trafficability and the

growth of vegetation after development. Slope and stoniness are the main concerns

affecting the development of picnic areas. For good trafficability, the surface of picnic
Logan County, Oklahoma 213

areas should absorb rainfall readily, remain firm under heavy foot traffic, and not be

dusty when dry. The soil properties that influence trafficability are texture of the surface

layer, depth to a water table, ponding, flooding, permeability, and large stones. The soil

properties that affect the growth of plants are depth to bedrock or a cemented pan,

permeability, and toxic substances in the soil.

Playgrounds require soils that are nearly level, are free of stones, and can

withstand intensive foot traffic. The ratings are based on the soil properties that affect

the ease of developing playgrounds and that influence trafficability and the growth of

vegetation after development. Slope and stoniness are the main concerns affecting the

development of playgrounds. For good trafficability, the surface of the playgrounds

should absorb rainfall readily, remain firm under heavy foot traffic, and not be dusty

when dry. The soil properties that influence trafficability are texture of the surface layer,

depth to a water table, ponding, flooding, permeability, and large stones. The soil

properties that affect the growth of plants are depth to bedrock or a cemented pan,

permeability, and toxic substances in the soil.

Paths and trails for hiking and horseback riding should require little or no slope

modification through cutting and filling. The ratings are based on the soil properties

that affect trafficability and erodibility. These properties are stoniness, depth to a water

table, ponding, flooding, slope, and texture of the surface layer.

Off-road motorcycle trails require little or no site preparation. They are not covered

with surfacing material or vegetation. Considerable compaction of the soil material is

likely. The ratings are based on the soil properties that influence erodibility, trafficability,

dustiness, and the ease of revegetation. These properties are stoniness, slope, depth

to a water table, ponding, flooding, and texture of the surface layer.

Golf fairways are subject to heavy foot traffic and some light vehicular traffic. Cutting

or filling may be required. Irrigation is not considered in the ratings. The ratings are

based on the soil properties that affect plant growth and trafficability after vegetation is

established. The properties that affect plant growth are reaction; depth to a water table;

ponding; depth to bedrock or a cemented pan; the available water capacity in the

upper 40 inches; the content of salts, sodium, or calcium carbonate; and sulfidic

materials. The properties that affect trafficability are flooding, depth to a water table,

ponding, slope, stoniness, and the amount of sand, clay, or organic matter in the

surface layer. The suitability of the soil for traps, tees, roughs, and greens is not

considered in the ratings.
214 Soil Survey

Recreational Development, Part I

(The information in this table indicates the dominant soil condition but does not eliminate the need

 for onsite investigation. The numbers in the value columns range from 0.01 to 1.00. The larger

 the value, the greater the limitation. See text for further explanation of ratings in this table)

________________________________________________________________________________________________________

 | | | |

 Map symbol |Pct.| Camp areas | Picnic areas | Playgrounds

 and soil name | of | | | _____________________________________________________________________________

 |map | Rating class and |Value| Rating class and |Value| Rating class and |Value

 |unit| limiting features | | limiting features | | limiting features | ________________________________________________________________________________________________________

 | | | | | | |

AspA: | | | | | | |

 Ashport-------------| 95 |Very limited | |Not limited | |Somewhat limited |

 | | Flooding |1.00 | | | Flooding |0.60

 | | | | | | |

AstA: | | | | | | |

 Ashport-------------| 90 |Very limited | |Somewhat limited | |Very limited |

 | | Flooding |1.00 | Flooding |0.40 | Flooding |1.00

 | | | | | | |

BetA, BetB: | | | | | | |

 Bethany-------------| 93 |Somewhat limited | |Somewhat limited | |Somewhat limited |

 | | Restricted |0.41 | Restricted |0.41 | Restricted |0.41

 | | permeability | | permeability | | permeability |

 | | | | | | |

BocA: | | | | | | |

 Bocox---------------| 94 |Very limited | |Very limited | |Very limited |

 | | Depth to |1.00 | Depth to |1.00 | Depth to |1.00

 | | saturated zone | | saturated zone | | saturated zone |

 | | Ponding |1.00 | Ponding |1.00 | Ponding |1.00

 | | Too sandy |0.27 | Too sandy |0.27 | Too sandy |0.27

 | | | | | | |

BtlA: | | | | | | |

 Bathel--------------| 94 |Very limited | |Very limited | |Very limited |

 | | Ponding |1.00 | Ponding |1.00 | Ponding |1.00

 | | Too sandy |0.87 | Too sandy |0.87 | Too sandy |0.87

 | | | | | | |

CaaA: | | | | | | |

 Canadian------------| 94 |Very limited | |Not limited | |Not limited |

 | | Flooding |1.00 | | | |

 | | | | | | |

CAID: | | | | | | |

 Coyle---------------| 31 |Somewhat limited | |Somewhat limited | |Somewhat limited |

 | | Restricted |0.44 | Restricted |0.44 | Slope |0.50

 | | permeability | | permeability | | Restricted |0.44

 | | | | | | permeability |

 | | | | | | Depth to bedrock |0.06

 | | | | | | |

 Ashport-------------| 28 |Very limited | |Somewhat limited | |Very limited |

 | | Flooding |1.00 | Flooding |0.40 | Flooding |1.00

 | | | | | | |

 Ironmound-----------| 22 |Very limited | |Very limited | |Very limited |

 | | Depth to bedrock |1.00 | Depth to bedrock |1.00 | Depth to bedrock |1.00

 | | Restricted |0.44 | Restricted |0.44 | Slope |1.00

 | | permeability | | permeability | | Restricted |0.44

 | | | | | | permeability |

 | | | | | | |

CoIC2: | | | | | | |

 Coyle---------------| 61 |Somewhat limited | |Somewhat limited | |Somewhat limited |

 | | Restricted |0.44 | Restricted |0.44 | Slope |0.50

 | | permeability | | permeability | | Restricted |0.44

 | | | | | | permeability |

 | | | | | | Depth to bedrock |0.03

 | | | | | | |
Logan County, Oklahoma 215

Recreational Development, Part I—Continued

________________________________________________________________________________________________________

 | | | |

 Map symbol |Pct.| Camp areas | Picnic areas | Playgrounds

 and soil name | of | | | _____________________________________________________________________________

 |map | Rating class and |Value| Rating class and |Value| Rating class and |Value

 |unit| limiting features | | limiting features | | limiting features | ________________________________________________________________________________________________________

 | | | | | | |

CoIC2: | | | | | | |

 Ironmound-----------| 33 |Very limited | |Very limited | |Very limited |

 | | Depth to bedrock |1.00 | Depth to bedrock |1.00 | Depth to bedrock |1.00

 | | Restricted |0.44 | Restricted |0.44 | Slope |0.50

 | | permeability | | permeability | | Restricted |0.44

 | | | | | | permeability |

 | | | | | | |

CoUB: | | | | | | |

 Coyle---------------| 55 |Not limited | |Not limited | |Not limited |

 | | | | | | |

 Urban land----------| 40 |Not rated | |Not rated | |Not rated |

 | | | | | | |

CoUC: | | | | | | |

 Coyle---------------| 42 |Somewhat limited | |Somewhat limited | |Somewhat limited |

 | | Restricted |0.44 | Restricted |0.44 | Depth to bedrock |0.54

 | | permeability | | permeability | | Restricted |0.44

 | | | | | | permeability |

 | | | | | | Slope |0.12

 | | | | | | |

 Urban land----------| 38 |Not rated | |Not rated | |Not rated |

 | | | | | | |

CoyB: | | | | | | |

 Coyle---------------| 91 |Somewhat limited | |Somewhat limited | |Somewhat limited |

 | | Restricted |0.44 | Restricted |0.44 | Restricted |0.44

 | | permeability | | permeability | | permeability |

 | | | | | | |

CoyC2: | | | | | | |

 Coyle---------------| 91 |Somewhat limited | |Somewhat limited | |Somewhat limited |

 | | Restricted |0.44 | Restricted |0.44 | Depth to bedrock |0.71

 | | permeability | | permeability | | Slope |0.50

 | | | | | | Restricted |0.44

 | | | | | | permeability |

 | | | | | | |

CoZC3: | | | | | | |

 Coyle---------------| 70 |Somewhat limited | |Somewhat limited | |Somewhat limited |

 | | Restricted |0.44 | Restricted |0.44 | Slope |0.50

 | | permeability | | permeability | | Restricted |0.44

 | | | | | | permeability |

 | | | | | | Depth to bedrock |0.35

 | | | | | | |

 Zaneis--------------| 15 |Not limited | |Not limited | |Somewhat limited |

 | | | | | | Slope |0.50

 | | | | | | |

DAM: | | | | | | |

 Dam-----------------|100 |Not rated | |Not rated | |Not rated |

 | | | | | | |

DerB: | | | | | | |

 Derby---------------| 90 |Somewhat limited | |Somewhat limited | |Somewhat limited |

 | | Too sandy |0.37 | Too sandy |0.37 | Too sandy |0.37

 | | | | | | |

DerD: | | | | | | |

 Derby---------------| 90 |Somewhat limited | |Somewhat limited | |Very limited |

 | | Too sandy |0.37 | Too sandy |0.37 | Slope |1.00

 | | | | | | Too sandy |0.37

 | | | | | | |

DerE: | | | | | | |

 Derby---------------| 90 |Somewhat limited | |Somewhat limited | |Very limited |

 | | Slope |0.63 | Slope |0.63 | Slope |1.00

 | | Too sandy |0.37 | Too sandy |0.37 | Too sandy |0.37

 | | | | | | |
216 Soil Survey

Recreational Development, Part I—Continued

________________________________________________________________________________________________________

 | | | |

 Map symbol |Pct.| Camp areas | Picnic areas | Playgrounds

 and soil name | of | | | _____________________________________________________________________________

 |map | Rating class and |Value| Rating class and |Value| Rating class and |Value

 |unit| limiting features | | limiting features | | limiting features | ________________________________________________________________________________________________________

 | | | | | | |

DiRG: | | | | | | |

 Darsil--------------| 67 |Very limited | |Very limited | |Very limited |

 | | Slope |1.00 | Slope |1.00 | Slope |1.00

 | | Depth to bedrock |1.00 | Depth to bedrock |1.00 | Depth to bedrock |1.00

 | | Too sandy |0.34 | Too sandy |0.34 | Too sandy |0.34

 | | | | | | |

 Rock outcrop--------| 20 |Not rated | |Not rated | |Not rated |

 | | | | | | |

DouB: | | | | | | |

 Dougherty-----------| 91 |Somewhat limited | |Somewhat limited | |Somewhat limited |

 | | Too sandy |0.96 | Too sandy |0.96 | Too sandy |0.96

 | | | | | | |

DouD: | | | | | | |

 Dougherty-----------| 91 |Somewhat limited | |Somewhat limited | |Very limited |

 | | Too sandy |0.96 | Too sandy |0.96 | Slope |1.00

 | | | | | | Too sandy |0.96

 | | | | | | |

DUM: | | | | | | |

 Dumps---------------|100 |Not rated | |Not rated | |Not rated |

 | | | | | | |

EasA: | | | | | | |

 Easpur--------------| 93 |Very limited | |Not limited | |Somewhat limited |

 | | Flooding |1.00 | | | Flooding |0.60

 | | | | | | |

GadA: | | | | | | |

 Gaddy---------------| 85 |Very limited | |Somewhat limited | |Somewhat limited |

 | | Flooding |1.00 | Too sandy |0.79 | Too sandy |0.79

 | | Too sandy |0.79 | | | Flooding |0.60

 | | | | | | |

GaGA: | | | | | | |

 Gaddy---------------| 67 |Very limited | |Somewhat limited | |Very limited |

 | | Flooding |1.00 | Flooding |0.40 | Flooding |1.00

 | | | | | | |

 Gracemore-----------| 23 |Very limited | |Very limited | |Very limited |

 | | Depth to |1.00 | Depth to |1.00 | Depth to |1.00

 | | saturated zone | | saturated zone | | saturated zone |

 | | Flooding |1.00 | Flooding |0.40 | Flooding |1.00

 | | | | | | |

GMGE4: | | | | | | |

 Grainola------------| 40 |Somewhat limited | |Somewhat limited | |Very limited |

 | | Restricted |0.45 | Restricted |0.45 | Slope |1.00

 | | permeability | | permeability | | Restricted |0.45

 | | Slope |0.16 | Slope |0.16 | permeability |

 | | | | | | Content of large |0.05

 | | | | | | stones |

 | | | | | | Gravel content |0.02

 | | | | | | Depth to bedrock |0.01

 | | | | | | |

 Masham--------------| 30 |Very limited | |Very limited | |Very limited |

 | | Depth to bedrock |1.00 | Depth to bedrock |1.00 | Depth to bedrock |1.00

 | | Restricted |0.45 | Restricted |0.45 | Slope |1.00

 | | permeability | | permeability | | Restricted |0.45

 | | Slope |0.16 | Slope |0.16 | permeability |

 | | | | | | |

 Gullied land--------| 20 |Not rated | |Not rated | |Not rated |

 | | | | | | |
Logan County, Oklahoma 217

Recreational Development, Part I—Continued

________________________________________________________________________________________________________

 | | | |

 Map symbol |Pct.| Camp areas | Picnic areas | Playgrounds

 and soil name | of | | | _____________________________________________________________________________

 |map | Rating class and |Value| Rating class and |Value| Rating class and |Value

 |unit| limiting features | | limiting features | | limiting features | ________________________________________________________________________________________________________

 | | | | | | |

GMLG: | | | | | | |

 Grainola------------| 37 |Very limited | |Very limited | |Very limited |

 | | Slope |1.00 | Slope |1.00 | Slope |1.00

 | | Restricted |0.45 | Restricted |0.45 | Gravel content |1.00

 | | permeability | | permeability | | Depth to bedrock |0.46

 | | Gravel content |0.24 | Gravel content |0.24 | Restricted |0.45

 | | | | | | permeability |

 | | | | | | Content of large |0.08

 | | | | | | stones |

 | | | | | | |

 Masham--------------| 22 |Very limited | |Very limited | |Very limited |

 | | Slope |1.00 | Slope |1.00 | Slope |1.00

 | | Depth to bedrock |1.00 | Depth to bedrock |1.00 | Depth to bedrock |1.00

 | | Restricted |0.45 | Restricted |0.45 | Restricted |0.45

 | | permeability | | permeability | | permeability |

 | | | | | | |

 Lucien--------------| 21 |Very limited | |Very limited | |Very limited |

 | | Slope |1.00 | Slope |1.00 | Slope |1.00

 | | Depth to bedrock |1.00 | Depth to bedrock |1.00 | Depth to bedrock |1.00

 | | Restricted |0.45 | Restricted |0.45 | Restricted |0.45

 | | permeability | | permeability | | permeability |

 | | | | | | Content of large |0.03

 | | | | | | stones |

 | | | | | | |

GohC: | | | | | | |

 Goodnight-----------| 92 |Somewhat limited | |Somewhat limited | |Somewhat limited |

 | | Too sandy |0.87 | Too sandy |0.87 | Too sandy |0.87

 | | | | | | Slope |0.12

 | | | | | | |

GohE: | | | | | | |

 Goodnight-----------| 92 |Somewhat limited | |Somewhat limited | |Very limited |

 | | Too sandy |0.87 | Too sandy |0.87 | Slope |1.00

 | | Slope |0.16 | Slope |0.16 | Too sandy |0.87

 | | | | | | |

GooE: | | | | | | |

 Goodnight-----------| 92 |Very limited | |Very limited | |Very limited |

 | | Too sandy |1.00 | Too sandy |1.00 | Too sandy |1.00

 | | | | | | Slope |1.00

 | | | | | | |

GooG: | | | | | | |

 Goodnight-----------| 92 |Very limited | |Very limited | |Very limited |

 | | Slope |1.00 | Too sandy |1.00 | Slope |1.00

 | | Too sandy |1.00 | Slope |1.00 | Too sandy |1.00

 | | | | | | |

GraC: | | | | | | |

 Grainola------------| 88 |Somewhat limited | |Somewhat limited | |Somewhat limited |

 | | Restricted |0.45 | Restricted |0.45 | Slope |0.50

 | | permeability | | permeability | | Restricted |0.45

 | | | | | | permeability |

 | | | | | | Depth to bedrock |0.29

 | | | | | | Content of large |0.05

 | | | | | | stones |

 | | | | | | Gravel content |0.02

 | | | | | | |
218 Soil Survey

Recreational Development, Part I—Continued

________________________________________________________________________________________________________

 | | | |

 Map symbol |Pct.| Camp areas | Picnic areas | Playgrounds

 and soil name | of | | | _____________________________________________________________________________

 |map | Rating class and |Value| Rating class and |Value| Rating class and |Value

 |unit| limiting features | | limiting features | | limiting features | ________________________________________________________________________________________________________

 | | | | | | |

GraD2: | | | | | | |

 Grainola------------| 89 |Somewhat limited | |Somewhat limited | |Very limited |

 | | Restricted |0.45 | Restricted |0.45 | Slope |1.00

 | | permeability | | permeability | | Restricted |0.45

 | | | | | | permeability |

 | | | | | | Content of large |0.05

 | | | | | | stones |

 | | | | | | Gravel content |0.02

 | | | | | | Depth to bedrock |0.01

 | | | | | | |

GrHC: | | | | | | |

 Grant---------------| 45 |Not limited | |Not limited | |Somewhat limited |

 | | | | | | Slope |0.50

 | | | | | | |

 Huska---------------| 35 |Very limited | |Very limited | |Very limited |

 | | Sodium content |1.00 | Sodium content |1.00 | Sodium content |1.00

 | | Restricted |0.45 | Restricted |0.45 | Restricted |0.45

 | | permeability | | permeability | | permeability |

 | | Salinity |0.01 | Salinity |0.01 | Slope |0.12

 | | | | | | Salinity |0.01

 | | | | | | |

GrIE: | | | | | | |

 Grainola------------| 71 |Somewhat limited | |Somewhat limited | |Very limited |

 | | Restricted |0.41 | Restricted |0.41 | Slope |1.00

 | | permeability | | permeability | | Restricted |0.41

 | | | | | | permeability |

 | | | | | | Content of large |0.05

 | | | | | | stones |

 | | | | | | Gravel content |0.02

 | | | | | | Depth to bedrock |0.01

 | | | | | | |

 Ironmound-----------| 20 |Very limited | |Very limited | |Very limited |

 | | Depth to bedrock |1.00 | Depth to bedrock |1.00 | Depth to bedrock |1.00

 | | | | | | Slope |1.00

 | | | | | | |

GrLE: | | | | | | |

 Grainola------------| 55 |Somewhat limited | |Somewhat limited | |Very limited |

 | | Restricted |0.45 | Restricted |0.45 | Slope |1.00

 | | permeability | | permeability | | Depth to bedrock |0.74

 | | Slope |0.04 | Slope |0.04 | Restricted |0.45

 | | | | | | permeability |

 | | | | | | Content of large |0.05

 | | | | | | stones |

 | | | | | | Gravel content |0.02

 | | | | | | |

 Lucien--------------| 26 |Very limited | |Very limited | |Very limited |

 | | Depth to bedrock |1.00 | Depth to bedrock |1.00 | Depth to bedrock |1.00

 | | Restricted |0.45 | Restricted |0.45 | Slope |1.00

 | | permeability | | permeability | | Restricted |0.45

 | | Slope |0.04 | Slope |0.04 | permeability |

 | | | | | | Content of large |0.03

 | | | | | | stones |

 | | | | | | |

HaGD4: | | | | | | |

 Harrah--------------| 70 |Not limited | |Not limited | |Very limited |

 | | | | | | Slope |1.00

 | | | | | | |

 Gullied land--------| 15 |Not rated | |Not rated | |Not rated |

 | | | | | | |
Logan County, Oklahoma 219

Recreational Development, Part I—Continued

________________________________________________________________________________________________________

 | | | |

 Map symbol |Pct.| Camp areas | Picnic areas | Playgrounds

 and soil name | of | | | _____________________________________________________________________________

 |map | Rating class and |Value| Rating class and |Value| Rating class and |Value

 |unit| limiting features | | limiting features | | limiting features | ________________________________________________________________________________________________________

 | | | | | | |

HarC, HarC2: | | | | | | |

 Harrah--------------| 91 |Not limited | |Not limited | |Somewhat limited |

 | | | | | | Slope |0.50

 | | | | | | |

HarG: | | | | | | |

 Harrah--------------| 86 |Very limited | |Very limited | |Very limited |

 | | Slope |1.00 | Slope |1.00 | Slope |1.00

 | | | | | | |

HawB: | | | | | | |

 Hawley--------------| 94 |Very limited | |Somewhat limited | |Somewhat limited |

 | | Flooding |1.00 | Too sandy |0.87 | Too sandy |0.87

 | | Too sandy |0.87 | | | |

 | | | | | | |

ICGD3: | | | | | | |

 Ironmound-----------| 40 |Very limited | |Very limited | |Very limited |

 | | Depth to bedrock |1.00 | Depth to bedrock |1.00 | Depth to bedrock |1.00

 | | Restricted |0.44 | Restricted |0.44 | Slope |1.00

 | | permeability | | permeability | | Restricted |0.44

 | | | | | | permeability |

 | | | | | | |

 Coyle---------------| 30 |Somewhat limited | |Somewhat limited | |Very limited |

 | | Restricted |0.44 | Restricted |0.44 | Slope |1.00

 | | permeability | | permeability | | Restricted |0.44

 | | | | | | permeability |

 | | | | | | Depth to bedrock |0.10

 | | | | | | |

 Grainola------------| 15 |Somewhat limited | |Somewhat limited | |Very limited |

 | | Restricted |0.44 | Restricted |0.44 | Slope |1.00

 | | permeability | | permeability | | Restricted |0.44

 | | | | | | permeability |

 | | | | | | Depth to bedrock |0.16

 | | | | | | Content of large |0.05

 | | | | | | stones |

 | | | | | | Gravel content |0.02

 | | | | | | |

IrCE: | | | | | | |

 Ironmound-----------| 53 |Very limited | |Very limited | |Very limited |

 | | Depth to bedrock |1.00 | Depth to bedrock |1.00 | Depth to bedrock |1.00

 | | Restricted |0.44 | Restricted |0.44 | Slope |1.00

 | | permeability | | permeability | | Restricted |0.44

 | | Slope |0.16 | Slope |0.16 | permeability |

 | | | | | | |

 Coyle---------------| 22 |Somewhat limited | |Somewhat limited | |Very limited |

 | | Restricted |0.44 | Restricted |0.44 | Slope |1.00

 | | permeability | | permeability | | Depth to bedrock |0.80

 | | Slope |0.16 | Slope |0.16 | Restricted |0.44

 | | | | | | permeability |

 | | | | | | |

IroC2: | | | | | | |

 Ironmound-----------| 90 |Very limited | |Very limited | |Very limited |

 | | Depth to bedrock |1.00 | Depth to bedrock |1.00 | Depth to bedrock |1.00

 | | Restricted |0.44 | Restricted |0.44 | Slope |0.50

 | | permeability | | permeability | | Restricted |0.44

 | | | | | | permeability |

 | | | | | | |

KgfB: | | | | | | |

 Kingfisher----------| 90 |Somewhat limited | |Somewhat limited | |Somewhat limited |

 | | Restricted |0.44 | Restricted |0.44 | Restricted |0.44

 | | permeability | | permeability | | permeability |

 | | | | | | |
220 Soil Survey

Recreational Development, Part I—Continued

________________________________________________________________________________________________________

 | | | |

 Map symbol |Pct.| Camp areas | Picnic areas | Playgrounds

 and soil name | of | | | _____________________________________________________________________________

 |map | Rating class and |Value| Rating class and |Value| Rating class and |Value

 |unit| limiting features | | limiting features | | limiting features | ________________________________________________________________________________________________________

 | | | | | | |

KinC2: | | | | | | |

 Kingfisher----------| 90 |Somewhat limited | |Somewhat limited | |Somewhat limited |

 | | Restricted |0.44 | Restricted |0.44 | Depth to bedrock |0.71

 | | permeability | | permeability | | Slope |0.50

 | | | | | | Restricted |0.44

 | | | | | | permeability |

 | | | | | | |

KonB: | | | | | | |

 Konawa--------------| 96 |Somewhat limited | |Somewhat limited | |Somewhat limited |

 | | Too sandy |0.96 | Too sandy |0.96 | Too sandy |0.96

 | | | | | | |

KonD2: | | | | | | |

 Konawa--------------| 96 |Somewhat limited | |Somewhat limited | |Very limited |

 | | Too sandy |0.96 | Too sandy |0.96 | Slope |1.00

 | | | | | | Too sandy |0.96

 | | | | | | |

KrdA, KrkB: | | | | | | |

 Kirkland------------| 90 |Somewhat limited | |Somewhat limited | |Somewhat limited |

 | | Restricted |0.45 | Restricted |0.45 | Restricted |0.45

 | | permeability | | permeability | | permeability |

 | | | | | | |

LarA: | | | | | | |

 Lawrie--------------| 94 |Very limited | |Not limited | |Somewhat limited |

 | | Flooding |1.00 | | | Flooding |0.60

 | | | | | | |

LawA: | | | | | | |

 Lawrie--------------| 86 |Very limited | |Not limited | |Not limited |

 | | Flooding |1.00 | | | |

 | | | | | | |

LerA: | | | | | | |

 Lebron--------------| 80 |Very limited | |Very limited | |Very limited |

 | | Depth to |1.00 | Depth to |1.00 | Depth to |1.00

 | | saturated zone | | saturated zone | | saturated zone |

 | | Flooding |1.00 | Restricted |1.00 | Restricted |1.00

 | | Restricted |1.00 | permeability | | permeability |

 | | permeability | | Too clayey |1.00 | Too clayey |1.00

 | | Too clayey |1.00 | Ponding |1.00 | Ponding |1.00

 | | Ponding |1.00 | | | Flooding |0.60

 | | | | | | |

LitB: | | | | | | |

 Littleaxe-----------| 80 |Not limited | |Not limited | |Not limited |

 | | | | | | |

LitC2: | | | | | | |

 Littleaxe-----------| 80 |Not limited | |Not limited | |Somewhat limited |

 | | | | | | Slope |0.50

 | | | | | | |

M-W: | | | | | | |

 Miscellaneous water-|100 |Not rated | |Not rated | |Not rated |

 | | | | | | |

MaID: | | | | | | |

 Masham--------------| 52 |Very limited | |Very limited | |Very limited |

 | | Depth to bedrock |1.00 | Depth to bedrock |1.00 | Depth to bedrock |1.00

 | | Restricted |0.45 | Restricted |0.45 | Slope |1.00

 | | permeability | | permeability | | Restricted |0.45

 | | Slope |0.37 | Slope |0.37 | permeability |

 | | | | | | |

 Ironmound-----------| 27 |Very limited | |Very limited | |Very limited |

 | | Depth to bedrock |1.00 | Depth to bedrock |1.00 | Depth to bedrock |1.00

 | | Restricted |0.44 | Restricted |0.44 | Slope |1.00

 | | permeability | | permeability | | Restricted |0.44

 | | Slope |0.16 | Slope |0.16 | permeability |
Logan County, Oklahoma 221

Recreational Development, Part I—Continued

________________________________________________________________________________________________________

 | | | |

 Map symbol |Pct.| Camp areas | Picnic areas | Playgrounds

 and soil name | of | | | _____________________________________________________________________________

 |map | Rating class and |Value| Rating class and |Value| Rating class and |Value

 |unit| limiting features | | limiting features | | limiting features | ________________________________________________________________________________________________________

 | | | | | | |

MaIG: | | | | | | |

 Masham--------------| 73 |Very limited | |Very limited | |Very limited |

 | | Slope |1.00 | Slope |1.00 | Slope |1.00

 | | Depth to bedrock |1.00 | Depth to bedrock |1.00 | Depth to bedrock |1.00

 | | Restricted |0.45 | Restricted |0.45 | Restricted |0.45

 | | permeability | | permeability | | permeability |

 | | | | | | |

 Ironmound-----------| 17 |Very limited | |Very limited | |Very limited |

 | | Slope |1.00 | Slope |1.00 | Slope |1.00

 | | Depth to bedrock |1.00 | Depth to bedrock |1.00 | Depth to bedrock |1.00

 | | Restricted |0.44 | Restricted |0.44 | Restricted |0.44

 | | permeability | | permeability | | permeability |

 | | | | | | |

MinB: | | | | | | |

 Minco---------------| 91 |Not limited | |Not limited | |Not limited |

 | | | | | | |

MinC: | | | | | | |

 Minco---------------| 91 |Not limited | |Not limited | |Somewhat limited |

 | | | | | | Slope |0.50

 | | | | | | |

MinD: | | | | | | |

 Minco---------------| 91 |Not limited | |Not limited | |Very limited |

 | | | | | | Slope |1.00

 | | | | | | |

MinF: | | | | | | |

 Minco---------------| 91 |Very limited | |Very limited | |Very limited |

 | | Slope |1.00 | Slope |1.00 | Slope |1.00

 | | | | | | |

MllA: | | | | | | |

 Miller--------------| 95 |Very limited | |Somewhat limited | |Somewhat limited |

 | | Flooding |1.00 | Too clayey |0.50 | Flooding |0.60

 | | Too clayey |0.50 | Restricted |0.45 | Too clayey |0.50

 | | Restricted |0.45 | permeability | | Restricted |0.45

 | | permeability | | | | permeability |

 | | | | | | |

MulC, MulC2: | | | | | | |

 Mulhall-------------| 88 |Not limited | |Not limited | |Somewhat limited |

 | | | | | | Slope |0.50

 | | | | | | |

NavA, NavB: | | | | | | |

 Navina--------------| 96 |Not limited | |Not limited | |Not limited |

 | | | | | | |

NeGD4: | | | | | | |

 Newalla-------------| 75 |Somewhat limited | |Somewhat limited | |Somewhat limited |

 | | Restricted |0.45 | Restricted |0.45 | Slope |0.88

 | | permeability | | permeability | | Restricted |0.45

 | | | | | | permeability |

 | | | | | | |

 Gullied land--------| 15 |Not rated | |Not rated | |Not rated |

 | | | | | | |

NewB: | | | | | | |

 Newalla-------------| 90 |Somewhat limited | |Somewhat limited | |Somewhat limited |

 | | Restricted |0.45 | Restricted |0.45 | Restricted |0.45

 | | permeability | | permeability | | permeability |

 | | | | | | |

NorA: | | | | | | |

 Norge---------------| 93 |Not limited | |Not limited | |Not limited |

 | | | | | | |

NorB: | | | | | | |

 Norge---------------| 90 |Not limited | |Not limited | |Not limited |

 | | | | | | |
222 Soil Survey

Recreational Development, Part I—Continued

________________________________________________________________________________________________________

 | | | |

 Map symbol |Pct.| Camp areas | Picnic areas | Playgrounds

 and soil name | of | | | _____________________________________________________________________________

 |map | Rating class and |Value| Rating class and |Value| Rating class and |Value

 |unit| limiting features | | limiting features | | limiting features | ________________________________________________________________________________________________________

 | | | | | | |

NorC2: | | | | | | |

 Norge---------------| 88 |Not limited | |Not limited | |Somewhat limited |

 | | | | | | Slope |0.50

 | | | | | | |

OWHD: | | | | | | |

 Oil waste land------| 50 |Not rated | |Not rated | |Not rated |

 | | | | | | |

 Huska---------------| 30 |Very limited | |Very limited | |Very limited |

 | | Sodium content |1.00 | Sodium content |1.00 | Sodium content |1.00

 | | Restricted |0.45 | Restricted |0.45 | Restricted |0.45

 | | permeability | | permeability | | permeability |

 | | Salinity |0.01 | Salinity |0.01 | Salinity |0.01

 | | | | | | |

PieB: | | | | | | |

 Piedmont------------| 92 |Somewhat limited | |Somewhat limited | |Somewhat limited |

 | | Restricted |0.45 | Restricted |0.45 | Restricted |0.45

 | | permeability | | permeability | | permeability |

 | | | | | | |

PieC2: | | | | | | |

 Piedmont------------| 93 |Somewhat limited | |Somewhat limited | |Somewhat limited |

 | | Restricted |0.45 | Restricted |0.45 | Depth to bedrock |0.71

 | | permeability | | permeability | | Slope |0.50

 | | | | | | Restricted |0.45

 | | | | | | permeability |

 | | | | | | |

PIT: | | | | | | |

 Pits----------------|100 |Not rated | |Not rated | |Not rated |

 | | | | | | |

PukA: | | | | | | |

 Pulaski-------------| 85 |Very limited | |Somewhat limited | |Very limited |

 | | Flooding |1.00 | Flooding |0.40 | Flooding |1.00

 | | | | | | |

PulA: | | | | | | |

 Pulaski-------------| 85 |Very limited | |Not limited | |Somewhat limited |

 | | Flooding |1.00 | | | Flooding |0.60

 | | | | | | |

RenB: | | | | | | |

 Renfrow-------------| 89 |Somewhat limited | |Somewhat limited | |Somewhat limited |

 | | Restricted |0.45 | Restricted |0.45 | Restricted |0.45

 | | permeability | | permeability | | permeability |

 | | | | | | |

RenC: | | | | | | |

 Renfrow-------------| 89 |Somewhat limited | |Somewhat limited | |Somewhat limited |

 | | Restricted |0.45 | Restricted |0.45 | Slope |0.50

 | | permeability | | permeability | | Restricted |0.45

 | | | | | | permeability |

 | | | | | | |

RewC2: | | | | | | |

 Renfrow-------------| 84 |Somewhat limited | |Somewhat limited | |Somewhat limited |

 | | Restricted |0.45 | Restricted |0.45 | Slope |0.50

 | | permeability | | permeability | | Restricted |0.45

 | | | | | | permeability |

 | | | | | | |

RinB: | | | | | | |

 Renthin-------------| 81 |Somewhat limited | |Somewhat limited | |Somewhat limited |

 | | Restricted |0.45 | Restricted |0.45 | Restricted |0.45

 | | permeability | | permeability | | permeability |

 | | | | | | |
Logan County, Oklahoma 223

Recreational Development, Part I—Continued

________________________________________________________________________________________________________

 | | | |

 Map symbol |Pct.| Camp areas | Picnic areas | Playgrounds

 and soil name | of | | | _____________________________________________________________________________

 |map | Rating class and |Value| Rating class and |Value| Rating class and |Value

 |unit| limiting features | | limiting features | | limiting features | ________________________________________________________________________________________________________

 | | | | | | |

RnnC2: | | | | | | |

 Renthin-------------| 80 |Somewhat limited | |Somewhat limited | |Somewhat limited |

 | | Restricted |0.45 | Restricted |0.45 | Slope |0.50

 | | permeability | | permeability | | Restricted |0.45

 | | | | | | permeability |

 | | | | | | |

SDGD4: | | | | | | |

 Stephenville--------| 32 |Not limited | |Not limited | |Very limited |

 | | | | | | Slope |1.00

 | | | | | | Depth to bedrock |0.97

 | | | | | | Content of large |0.03

 | | | | | | stones |

 | | | | | | |

 Darsil--------------| 31 |Very limited | |Very limited | |Very limited |

 | | Depth to bedrock |1.00 | Depth to bedrock |1.00 | Depth to bedrock |1.00

 | | Too sandy |0.34 | Too sandy |0.34 | Slope |1.00

 | | | | | | Too sandy |0.34

 | | | | | | |

 Gullied land--------| 23 |Not rated | |Not rated | |Not rated |

 | | | | | | |

SDND: | | | | | | |

 Stephenville--------| 44 |Not limited | |Not limited | |Very limited |

 | | | | | | Slope |1.00

 | | | | | | Depth to bedrock |0.65

 | | | | | | Content of large |0.03

 | | | | | | stones |

 | | | | | | |

 Darsil--------------| 29 |Very limited | |Very limited | |Very limited |

 | | Depth to bedrock |1.00 | Depth to bedrock |1.00 | Depth to bedrock |1.00

 | | | | | | Slope |1.00

 | | | | | | |

 Newalla-------------| 21 |Somewhat limited | |Somewhat limited | |Very limited |

 | | Restricted |0.45 | Restricted |0.45 | Slope |1.00

 | | permeability | | permeability | | Restricted |0.45

 | | | | | | permeability |

 | | | | | | |

SDND2: | | | | | | |

 Stephenville--------| 44 |Not limited | |Not limited | |Very limited |

 | | | | | | Slope |1.00

 | | | | | | Depth to bedrock |0.46

 | | | | | | Content of large |0.03

 | | | | | | stones |

 | | | | | | |

 Darsil--------------| 33 |Very limited | |Very limited | |Very limited |

 | | Depth to bedrock |1.00 | Depth to bedrock |1.00 | Depth to bedrock |1.00

 | | | | | | Slope |1.00

 | | | | | | |

 Newalla-------------| 20 |Somewhat limited | |Somewhat limited | |Very limited |

 | | Restricted |0.45 | Restricted |0.45 | Slope |1.00

 | | permeability | | permeability | | Restricted |0.45

 | | | | | | permeability |

 | | | | | | |

SlaB: | | | | | | |

 Slaughterville------| 95 |Not limited | |Not limited | |Not limited |

 | | | | | | |

SlaD: | | | | | | |

 Slaughterville------| 95 |Not limited | |Not limited | |Very limited |

 | | | | | | Slope |1.00

 | | | | | | |
224 Soil Survey

Recreational Development, Part I—Continued

________________________________________________________________________________________________________

 | | | |

 Map symbol |Pct.| Camp areas | Picnic areas | Playgrounds

 and soil name | of | | | _____________________________________________________________________________

 |map | Rating class and |Value| Rating class and |Value| Rating class and |Value

 |unit| limiting features | | limiting features | | limiting features | ________________________________________________________________________________________________________

 | | | | | | |

SlaF: | | | | | | |

 Slaughterville------| 95 |Somewhat limited | |Somewhat limited | |Very limited |

 | | Slope |0.96 | Slope |0.96 | Slope |1.00

 | | | | | | |

StDC: | | | | | | |

 Stephenville--------| 55 |Not limited | |Not limited | |Somewhat limited |

 | | | | | | Slope |0.50

 | | | | | | Depth to bedrock |0.46

 | | | | | | Content of large |0.03

 | | | | | | stones |

 | | | | | | |

 Darsil--------------| 30 |Very limited | |Very limited | |Very limited |

 | | Depth to bedrock |1.00 | Depth to bedrock |1.00 | Depth to bedrock |1.00

 | | | | | | Slope |0.12

 | | | | | | |

StDC2: | | | | | | |

 Stephenville--------| 55 |Not limited | |Not limited | |Somewhat limited |

 | | | | | | Slope |0.12

 | | | | | | Content of large |0.03

 | | | | | | stones |

 | | | | | | Depth to bedrock |0.01

 | | | | | | |

 Darsil--------------| 30 |Very limited | |Very limited | |Very limited |

 | | Depth to bedrock |1.00 | Depth to bedrock |1.00 | Depth to bedrock |1.00

 | | | | | | Slope |0.12

 | | | | | | |

StDE: | | | | | | |

 Stephenville--------| 50 |Somewhat limited | |Somewhat limited | |Very limited |

 | | Slope |0.96 | Slope |0.96 | Slope |1.00

 | | | | | | Depth to bedrock |0.71

 | | | | | | Content of large |0.03

 | | | | | | stones |

 | | | | | | |

 Darsil--------------| 40 |Very limited | |Very limited | |Very limited |

 | | Depth to bedrock |1.00 | Depth to bedrock |1.00 | Depth to bedrock |1.00

 | | Too sandy |0.34 | Too sandy |0.34 | Slope |1.00

 | | | | | | Too sandy |0.34

 | | | | | | |

SteB: | | | | | | |

 Stephenville--------| 94 |Not limited | |Not limited | |Somewhat limited |

 | | | | | | Content of large |0.03

 | | | | | | stones |

 | | | | | | |

SteC2: | | | | | | |

 Stephenville--------| 92 |Not limited | |Not limited | |Somewhat limited |

 | | | | | | Depth to bedrock |0.54

 | | | | | | Slope |0.50

 | | | | | | Content of large |0.03

 | | | | | | stones |

 | | | | | | |

SUND: | | | | | | |

 Stephenville--------| 35 |Not limited | |Not limited | |Very limited |

 | | | | | | Slope |1.00

 | | | | | | Depth to bedrock |0.65

 | | | | | | Content of large |0.03

 | | | | | | stones |

 | | | | | | |

 Urban land----------| 30 |Not rated | |Not rated | |Not rated |

 | | | | | | |
Logan County, Oklahoma 225

Recreational Development, Part I—Continued

________________________________________________________________________________________________________

 | | | |

 Map symbol |Pct.| Camp areas | Picnic areas | Playgrounds

 and soil name | of | | | _____________________________________________________________________________

 |map | Rating class and |Value| Rating class and |Value| Rating class and |Value

 |unit| limiting features | | limiting features | | limiting features | ________________________________________________________________________________________________________

 | | | | | | |

SUND: | | | | | | |

 Newalla-------------| 15 |Somewhat limited | |Somewhat limited | |Very limited |

 | | Restricted |0.45 | Restricted |0.45 | Slope |1.00

 | | permeability | | permeability | | Restricted |0.45

 | | | | | | permeability |

 | | | | | | |

TelB: | | | | | | |

 Teller--------------| 96 |Not limited | |Not limited | |Not limited |

 | | | | | | |

TelC2: | | | | | | |

 Teller--------------| 96 |Not limited | |Not limited | |Somewhat limited |

 | | | | | | Slope |0.50

 | | | | | | |

TriA: | | | | | | |

 Tribbey-------------| 90 |Very limited | |Somewhat limited | |Very limited |

 | | Flooding |1.00 | Flooding |0.40 | Flooding |1.00

 | | Depth to |0.39 | Depth to |0.19 | Depth to |0.39

 | | saturated zone | | saturated zone | | saturated zone |

 | | | | | | |

URB: | | | | | | |

 Urban land----------|100 |Not rated | |Not rated | |Not rated |

 | | | | | | |

W: | | | | | | |

 Water |100 |Not rated | |Not rated | |Not rated |

 | | | | | | |

YaaA, YahA: | | | | | | |

 Yahola--------------| 87 |Very limited | |Not limited | |Somewhat limited |

 | | Flooding |1.00 | | | Flooding |0.60

 | | | | | | |

ZaHC: | | | | | | |

 Zaneis--------------| 55 |Not limited | |Not limited | |Somewhat limited |

 | | | | | | Slope |0.50

 | | | | | | |

 Huska---------------| 25 |Very limited | |Very limited | |Very limited |

 | | Sodium content |1.00 | Sodium content |1.00 | Sodium content |1.00

 | | Restricted |0.45 | Restricted |0.45 | Slope |0.50

 | | permeability | | permeability | | Restricted |0.45

 | | Salinity |0.01 | Salinity |0.01 | permeability |

 | | | | | | Salinity |0.01

 | | | | | | |

ZanB: | | | | | | |

 Zaneis--------------| 87 |Not limited | |Not limited | |Not limited |

 | | | | | | |

ZanC, ZanC2: | | | | | | |

 Zaneis--------------| 87 |Not limited | |Not limited | |Somewhat limited |

 | | | | | | Slope |0.50

 | | | | | | | ________________________________________________________________________________________________________
226 Soil Survey

Recreational Development, Part II

(The information in this table indicates the dominant soil condition but does not eliminate the need

 for onsite investigation. The numbers in the value columns range from 0.01 to 1.00. The larger

 the value, the greater the limitation. See text for further explanation of ratings in this table)

________________________________________________________________________________________________________

 | | | |

 Map symbol |Pct.| Paths and trails | Off-road | Golf fairways

 and soil name | of | | motorcycle trails | _____________________________________________________________________________

 |map | Rating class and |Value| Rating class and |Value| Rating class and |Value

 |unit| limiting features | | limiting features | | limiting features | ________________________________________________________________________________________________________

 | | | | | | |

AspA: | | | | | | |

 Ashport-------------| 95 |Not limited | |Not limited | |Somewhat limited |

 | | | | | | Flooding |0.60

 | | | | | | |

AstA: | | | | | | |

 Ashport-------------| 90 |Somewhat limited | |Somewhat limited | |Very limited |

 | | Flooding |0.40 | Flooding |0.40 | Flooding |1.00

 | | | | | | |

BetA, BetB: | | | | | | |

 Bethany-------------| 93 |Not limited | |Not limited | |Not limited |

 | | | | | | |

BocA: | | | | | | |

 Bocox---------------| 94 |Very limited | |Very limited | |Very limited |

 | | Depth to |1.00 | Depth to |1.00 | Depth to |1.00

 | | saturated zone | | saturated zone | | saturated zone |

 | | Ponding |1.00 | Ponding |1.00 | Ponding |1.00

 | | Too sandy |0.27 | Too sandy |0.27 | Droughty |0.01

 | | | | | | |

BtlA: | | | | | | |

 Bathel--------------| 94 |Very limited | |Very limited | |Very limited |

 | | Ponding |1.00 | Ponding |1.00 | Ponding |1.00

 | | Too sandy |0.87 | Too sandy |0.87 | |

 | | | | | | |

CaaA: | | | | | | |

 Canadian------------| 94 |Not limited | |Not limited | |Not limited |

 | | | | | | |

CAID: | | | | | | |

 Coyle---------------| 31 |Not limited | |Not limited | |Somewhat limited |

 | | | | | | Depth to bedrock |0.06

 | | | | | | |

 Ashport-------------| 28 |Somewhat limited | |Somewhat limited | |Very limited |

 | | Flooding |0.40 | Flooding |0.40 | Flooding |1.00

 | | | | | | |

 Ironmound-----------| 22 |Not limited | |Not limited | |Very limited |

 | | | | | | Depth to bedrock |1.00

 | | | | | | Droughty |0.46

 | | | | | | |

CoIC2: | | | | | | |

 Coyle---------------| 61 |Not limited | |Not limited | |Somewhat limited |

 | | | | | | Depth to bedrock |0.03

 | | | | | | |

 Ironmound-----------| 33 |Not limited | |Not limited | |Very limited |

 | | | | | | Depth to bedrock |1.00

 | | | | | | Droughty |0.65

 | | | | | | |

CoUB: | | | | | | |

 Coyle---------------| 55 |Not limited | |Not limited | |Somewhat limited |

 | | | | | | Depth to bedrock |0.97

 | | | | | | Droughty |0.04

 | | | | | | |

 Urban land----------| 40 |Not rated | |Not rated | |Not rated |

 | | | | | | |
Logan County, Oklahoma 227

Recreational Development, Part II—Continued

________________________________________________________________________________________________________

 | | | |

 Map symbol |Pct.| Paths and trails | Off-road | Golf fairways

 and soil name | of | | motorcycle trails | _____________________________________________________________________________

 |map | Rating class and |Value| Rating class and |Value| Rating class and |Value

 |unit| limiting features | | limiting features | | limiting features | ________________________________________________________________________________________________________

 | | | | | | |

CoUC: | | | | | | |

 Coyle---------------| 42 |Not limited | |Not limited | |Somewhat limited |

 | | | | | | Depth to bedrock |0.54

 | | | | | | |

 Urban land----------| 38 |Not rated | |Not rated | |Not rated |

 | | | | | | |

CoyB: | | | | | | |

 Coyle---------------| 91 |Not limited | |Not limited | |Somewhat limited |

 | | | | | | Depth to bedrock |0.35

 | | | | | | |

CoyC2: | | | | | | |

 Coyle---------------| 91 |Not limited | |Not limited | |Somewhat limited |

 | | | | | | Depth to bedrock |0.71

 | | | | | | |

CoZC3: | | | | | | |

 Coyle---------------| 70 |Not limited | |Not limited | |Somewhat limited |

 | | | | | | Depth to bedrock |0.35

 | | | | | | |

 Zaneis--------------| 15 |Not limited | |Not limited | |Not limited |

 | | | | | | |

DAM: | | | | | | |

 Dam-----------------|100 |Not rated | |Not rated | |Not rated |

 | | | | | | |

DerB: | | | | | | |

 Derby---------------| 90 |Somewhat limited | |Somewhat limited | |Somewhat limited |

 | | Too sandy |0.37 | Too sandy |0.37 | Droughty |0.14

 | | | | | | |

DerD: | | | | | | |

 Derby---------------| 90 |Somewhat limited | |Somewhat limited | |Somewhat limited |

 | | Too sandy |0.37 | Too sandy |0.37 | Droughty |0.27

 | | | | | | |

DerE: | | | | | | |

 Derby---------------| 90 |Somewhat limited | |Somewhat limited | |Somewhat limited |

 | | Too sandy |0.37 | Too sandy |0.37 | Slope |0.63

 | | | | | | Droughty |0.25

 | | | | | | |

DiRG: | | | | | | |

 Darsil--------------| 67 |Very limited | |Somewhat limited | |Very limited |

 | | Slope |1.00 | Too sandy |0.34 | Depth to bedrock |1.00

 | | Too sandy |0.34 | Slope |0.22 | Slope |1.00

 | | | | | | Droughty |1.00

 | | | | | | |

 Rock outcrop--------| 20 |Not rated | |Not rated | |Not rated |

 | | | | | | |

DouB, DouD: | | | | | | |

 Dougherty-----------| 91 |Somewhat limited | |Somewhat limited | |Not limited |

 | | Too sandy |0.96 | Too sandy |0.96 | |

 | | | | | | |

DUM: | | | | | | |

 Dumps---------------|100 |Not rated | |Not rated | |Not rated |

 | | | | | | |

EasA: | | | | | | |

 Easpur--------------| 93 |Not limited | |Not limited | |Somewhat limited |

 | | | | | | Flooding |0.60

 | | | | | | |

GadA: | | | | | | |

 Gaddy---------------| 85 |Somewhat limited | |Somewhat limited | |Somewhat limited |

 | | Too sandy |0.79 | Too sandy |0.79 | Flooding |0.60

 | | | | | | Droughty |0.25

 | | | | | | |
228 Soil Survey

Recreational Development, Part II—Continued

________________________________________________________________________________________________________

 | | | |

 Map symbol |Pct.| Paths and trails | Off-road | Golf fairways

 and soil name | of | | motorcycle trails | _____________________________________________________________________________

 |map | Rating class and |Value| Rating class and |Value| Rating class and |Value

 |unit| limiting features | | limiting features | | limiting features | ________________________________________________________________________________________________________

 | | | | | | |

GaGA: | | | | | | |

 Gaddy---------------| 67 |Somewhat limited | |Somewhat limited | |Very limited |

 | | Flooding |0.40 | Flooding |0.40 | Flooding |1.00

 | | | | | | Droughty |0.14

 | | | | | | |

 Gracemore-----------| 23 |Very limited | |Very limited | |Very limited |

 | | Depth to |1.00 | Depth to |1.00 | Flooding |1.00

 | | saturated zone | | saturated zone | | Depth to |1.00

 | | Flooding |0.40 | Flooding |0.40 | saturated zone |

 | | | | | | |

GMGE4: | | | | | | |

 Grainola------------| 40 |Very limited | |Very limited | |Somewhat limited |

 | | Water erosion |1.00 | Water erosion |1.00 | Slope |0.16

 | | | | | | Content of large |0.05

 | | | | | | stones |

 | | | | | | Depth to bedrock |0.01

 | | | | | | |

 Masham--------------| 30 |Very limited | |Very limited | |Very limited |

 | | Water erosion |1.00 | Water erosion |1.00 | Depth to bedrock |1.00

 | | | | | | Droughty |0.71

 | | | | | | Slope |0.16

 | | | | | | |

 Gullied land--------| 20 |Not rated | |Not rated | |Not rated |

 | | | | | | |

GMLG: | | | | | | |

 Grainola------------| 37 |Not limited | |Not limited | |Very limited |

 | | | | | | Slope |1.00

 | | | | | | Depth to bedrock |0.46

 | | | | | | Gravel content |0.24

 | | | | | | Content of large |0.08

 | | | | | | stones |

 | | | | | | |

 Masham--------------| 22 |Very limited | |Very limited | |Very limited |

 | | Water erosion |1.00 | Water erosion |1.00 | Depth to bedrock |1.00

 | | Slope |1.00 | Slope |0.22 | Slope |1.00

 | | | | | | Droughty |0.97

 | | | | | | |

 Lucien--------------| 21 |Somewhat limited | |Not limited | |Very limited |

 | | Slope |0.18 | | | Depth to bedrock |1.00

 | | | | | | Slope |1.00

 | | | | | | Droughty |0.43

 | | | | | | Content of large |0.03

 | | | | | | stones |

 | | | | | | |

GohC: | | | | | | |

 Goodnight-----------| 92 |Somewhat limited | |Somewhat limited | |Somewhat limited |

 | | Too sandy |0.87 | Too sandy |0.87 | Droughty |0.62

 | | | | | | |

GohE: | | | | | | |

 Goodnight-----------| 92 |Somewhat limited | |Somewhat limited | |Somewhat limited |

 | | Too sandy |0.87 | Too sandy |0.87 | Droughty |0.61

 | | | | | | Slope |0.16

 | | | | | | |

GooE: | | | | | | |

 Goodnight-----------| 92 |Very limited | |Very limited | |Somewhat limited |

 | | Too sandy |1.00 | Too sandy |1.00 | Droughty |0.81

 | | | | | | |
Logan County, Oklahoma 229

Recreational Development, Part II—Continued

________________________________________________________________________________________________________

 | | | |

 Map symbol |Pct.| Paths and trails | Off-road | Golf fairways

 and soil name | of | | motorcycle trails | _____________________________________________________________________________

 |map | Rating class and |Value| Rating class and |Value| Rating class and |Value

 |unit| limiting features | | limiting features | | limiting features | ________________________________________________________________________________________________________

 | | | | | | |

GooG: | | | | | | |

 Goodnight-----------| 92 |Very limited | |Very limited | |Very limited |

 | | Too sandy |1.00 | Too sandy |1.00 | Slope |1.00

 | | Slope |0.92 | | | Droughty |0.85

 | | | | | | |

GraC: | | | | | | |

 Grainola------------| 88 |Not limited | |Not limited | |Somewhat limited |

 | | | | | | Depth to bedrock |0.29

 | | | | | | Content of large |0.05

 | | | | | | stones |

 | | | | | | |

GraD2: | | | | | | |

 Grainola------------| 89 |Not limited | |Not limited | |Somewhat limited |

 | | | | | | Content of large |0.05

 | | | | | | stones |

 | | | | | | Depth to bedrock |0.01

 | | | | | | |

GrHC: | | | | | | |

 Grant---------------| 45 |Not limited | |Not limited | |Not limited |

 | | | | | | |

 Huska---------------| 35 |Not limited | |Not limited | |Very limited |

 | | | | | | Sodium content |1.00

 | | | | | | Droughty |0.08

 | | | | | | Salinity |0.01

 | | | | | | |

GrIE: | | | | | | |

 Grainola------------| 71 |Not limited | |Not limited | |Somehwhat limited |

 | | | | | | Content of large |0.05

 | | | | | | stones |

 | | | | | | Depth to bedrock |0.01

 | | | | | | |

 Ironmound-----------| 20 |Not limited | |Not limited | |Very limited |

 | | | | | | Depth to bedrock |1.00

 | | | | | | Droughty |0.74

 | | | | | | |

GrLE: | | | | | | |

 Grainola------------| 55 |Very limited | |Very limited | |Somewhat limited |

 | | Water erosion |1.00 | Water erosion |1.00 | Depth to bedrock |0.74

 | | | | | | Content of large |0.05

 | | | | | | stones |

 | | | | | | Slope |0.04

 | | | | | | |

 Lucien--------------| 26 |Not limited | |Not limited | |Very limited |

 | | | | | | Depth to bedrock |1.00

 | | | | | | Droughty |0.99

 | | | | | | Slope |0.04

 | | | | | | Content of large |0.03

 | | | | | | stones |

 | | | | | | |

HaGD4: | | | | | | |

 Harrah--------------| 70 |Not limited | |Not limited | |Not limited |

 | | | | | | |

 Gullied land--------| 15 |Not rated | |Not rated | |Not rated |

 | | | | | | |

HarC, HarC2: | | | | | | |

 Harrah--------------| 91 |Not limited | |Not limited | |Not limited |

 | | | | | | |

HarG: | | | | | | |

 Harrah--------------| 86 |Somewhat limited | |Not limited | |Very limited |

 | | Slope |0.98 | | | Slope |1.00

 | | | | | | |
230 Soil Survey

Recreational Development, Part II—Continued

________________________________________________________________________________________________________

 | | | |

 Map symbol |Pct.| Paths and trails | Off-road | Golf fairways

 and soil name | of | | motorcycle trails | _____________________________________________________________________________

 |map | Rating class and |Value| Rating class and |Value| Rating class and |Value

 |unit| limiting features | | limiting features | | limiting features | ________________________________________________________________________________________________________

 | | | | | | |

HawB: | | | | | | |

 Hawley--------------| 94 |Somewhat limited | |Somewhat limited | |Not limited |

 | | Too sandy |0.87 | Too sandy |0.87 | |

 | | | | | | |

ICGD3: | | | | | | |

 Ironmound-----------| 40 |Not limited | |Not limited | |Very limited |

 | | | | | | Depth to bedrock |1.00

 | | | | | | Droughty |1.00

 | | | | | | |

 Coyle---------------| 30 |Not limited | |Not limited | |Somewhat limited |

 | | | | | | Depth to bedrock |0.10

 | | | | | | |

 Grainola------------| 15 |Not limited | |Not limited | |Somewhat limited |

 | | | | | | Depth to bedrock |0.16

 | | | | | | Content of large |0.05

 | | | | | | stones |

 | | | | | | |

IrCE: | | | | | | |

 Ironmound-----------| 53 |Not limited | |Not limited | |Very limited |

 | | | | | | Depth to bedrock |1.00

 | | | | | | Droughty |0.97

 | | | | | | Slope |0.16

 | | | | | | |

 Coyle---------------| 22 |Not limited | |Not limited | |Somewhat limited |

 | | | | | | Depth to bedrock |0.80

 | | | | | | Slope |0.16

 | | | | | | |

IroC2: | | | | | | |

 Ironmound-----------| 90 |Not limited | |Not limited | |Very limited |

 | | | | | | Depth to bedrock |1.00

 | | | | | | Droughty |0.71

 | | | | | | |

KgfB: | | | | | | |

 Kingfisher----------| 90 |Not limited | |Not limited | |Somewhat limited |

 | | | | | | Depth to bedrock |0.01

 | | | | | | |

KinC2: | | | | | | |

 Kingfisher----------| 90 |Not limited | |Not limited | |Somewhat limited |

 | | | | | | Depth to bedrock |0.71

 | | | | | | |

KonB, KonD2: | | | | | | |

 Konawa--------------| 96 |Somewhat limited | |Somewhat limited | |Not limited |

 | | Too sandy |0.96 | Too sandy |0.96 | |

 | | | | | | |

KrdA, KrkB: | | | | | | |

 Kirkland------------| 90 |Not limited | |Not limited | |Not limited |

 | | | | | | |

LarA: | | | | | | |

 Lawrie--------------| 94 |Not limited | |Not limited | |Somewhat limited |

 | | | | | | Flooding |0.60

 | | | | | | |

LawA: | | | | | | |

 Lawrie--------------| 86 |Not limited | |Not limited | |Not limited |

 | | | | | | |

LerA: | | | | | | |

 Lebron--------------| 80 |Very limited | |Very limited | |Very limited |

 | | Depth to |1.00 | Depth to |1.00 | Depth to |1.00

 | | saturated zone | | saturated zone | | saturated zone |

 | | Too clayey |1.00 | Too clayey |1.00 | Too clayey |1.00

 | | Ponding |1.00 | Ponding |1.00 | Ponding |1.00

 | | | | | | Flooding |0.60
Logan County, Oklahoma 231

Recreational Development, Part II—Continued

________________________________________________________________________________________________________

 | | | |

 Map symbol |Pct.| Paths and trails | Off-road | Golf fairways

 and soil name | of | | motorcycle trails | _____________________________________________________________________________

 |map | Rating class and |Value| Rating class and |Value| Rating class and |Value

 |unit| limiting features | | limiting features | | limiting features | ________________________________________________________________________________________________________

 | | | | | | |

LitB, LitC2: | | | | | | |

 Littleaxe-----------| 80 |Not limited | |Not limited | |Not limited |

 | | | | | | |

M-W: | | | | | | |

 Miscellaneous water-|100 |Not rated | |Not rated | |Not rated |

 | | | | | | |

MaID: | | | | | | |

 Masham--------------| 52 |Very limited | |Very limited | |Very limited |

 | | Water erosion |1.00 | Water erosion |1.00 | Depth to bedrock |1.00

 | | | | | | Droughty |0.73

 | | | | | | Slope |0.37

 | | | | | | |

 Ironmound-----------| 27 |Not limited | |Not limited | |Very limited |

 | | | | | | Depth to bedrock |1.00

 | | | | | | Droughty |1.00

 | | | | | | Slope |0.16

 | | | | | | |

MaIG: | | | | | | |

 Masham--------------| 73 |Very limited | |Very limited | |Very limited |

 | | Water erosion |1.00 | Water erosion |1.00 | Depth to bedrock |1.00

 | | Slope |1.00 | Slope |0.56 | Slope |1.00

 | | | | | | Droughty |1.00

 | | | | | | |

 Ironmound-----------| 17 |Somewhat limited | |Not limited | |Very limited |

 | | Slope |0.92 | | | Depth to bedrock |1.00

 | | | | | | Slope |1.00

 | | | | | | Droughty |0.85

 | | | | | | |

MinB, MinC, MinD: | | | | | | |

 Minco---------------| 91 |Not limited | |Not limited | |Not limited |

 | | | | | | |

MinF: | | | | | | |

 Minco---------------| 91 |Very limited | |Very limited | |Very limited |

 | | Water erosion |1.00 | Water erosion |1.00 | Slope |1.00

 | | Slope |0.32 | | | |

 | | | | | | |

MllA: | | | | | | |

 Miller--------------| 95 |Somewhat limited | |Somewhat limited | |Very limited |

 | | Too clayey |0.50 | Too clayey |0.50 | Too clayey |1.00

 | | | | | | Flooding |0.60

 | | | | | | |

MulC, MulC2: | | | | | | |

 Mulhall-------------| 88 |Not limited | |Not limited | |Not limited |

 | | | | | | |

NavA, NavB: | | | | | | |

 Navina--------------| 96 |Not limited | |Not limited | |Not limited |

 | | | | | | |

NeGD4: | | | | | | |

 Newalla-------------| 75 |Not limited | |Not limited | |Not limited |

 | | | | | | |

 Gullied land--------| 15 |Not rated | |Not rated | |Not rated |

 | | | | | | |

NewB: | | | | | | |

 Newalla-------------| 90 |Not limited | |Not limited | |Not limited |

 | | | | | | |

NorA: | | | | | | |

 Norge---------------| 93 |Not limited | |Not limited | |Not limited |

 | | | | | | |

NorB: | | | | | | |

 Norge---------------| 90 |Not limited | |Not limited | |Not limited |

 | | | | | | |
232 Soil Survey

Recreational Development, Part II—Continued

________________________________________________________________________________________________________

 | | | |

 Map symbol |Pct.| Paths and trails | Off-road | Golf fairways

 and soil name | of | | motorcycle trails | _____________________________________________________________________________

 |map | Rating class and |Value| Rating class and |Value| Rating class and |Value

 |unit| limiting features | | limiting features | | limiting features | ________________________________________________________________________________________________________

 | | | | | | |

NorC2: | | | | | | |

 Norge---------------| 88 |Not limited | |Not limited | |Not limited |

 | | | | | | |

OWHD: | | | | | | |

 Oil waste land------| 50 |Not rated | |Not rated | |Not rated |

 | | | | | | |

 Huska---------------| 30 |Not limited | |Not limited | |Very limited |

 | | | | | | Sodium content |1.00

 | | | | | | Droughty |0.04

 | | | | | | Salinity |0.01

 | | | | | | |

PieB: | | | | | | |

 Piedmont------------| 92 |Not limited | |Not limited | |Somewhat limited |

 | | | | | | Depth to bedrock |0.29

 | | | | | | |

PieC2: | | | | | | |

 Piedmont------------| 93 |Not limited | |Not limited | |Somewhat limited |

 | | | | | | Depth to bedrock |0.71

 | | | | | | |

PIT: | | | | | | |

 Pits----------------|100 |Not rated | |Not rated | |Not rated |

 | | | | | | |

PukA: | | | | | | |

 Pulaski-------------| 85 |Somewhat limited | |Somewhat limited | |Very limited |

 | | Flooding |0.40 | Flooding |0.40 | Flooding |1.00

 | | | | | | |

PulA: | | | | | | |

 Pulaski-------------| 85 |Not limited | |Not limited | |Somewhat limited |

 | | | | | | Flooding |0.60

 | | | | | | |

RenB, RenC: | | | | | | |

 Renfrow-------------| 89 |Not limited | |Not limited | |Not limited |

 | | | | | | |

RewC2: | | | | | | |

 Renfrow-------------| 84 |Not limited | |Not limited | |Not limited |

 | | | | | | |

RinB: | | | | | | |

 Renthin-------------| 81 |Not limited | |Not limited | |Not limited |

 | | | | | | |

RnnC2: | | | | | | |

 Renthin-------------| 80 |Not limited | |Not limited | |Not limited |

 | | | | | | |

SDGD4: | | | | | | |

 Stephenville--------| 32 |Not limited | |Not limited | |Somewhat limited |

 | | | | | | Depth to bedrock |0.97

 | | | | | | Droughty |0.10

 | | | | | | Content of large |0.03

 | | | | | | stones |

 | | | | | | |

 Darsil--------------| 31 |Somewhat limited | |Somewhat limited | |Very limited |

 | | Too sandy |0.34 | Too sandy |0.34 | Depth to bedrock |1.00

 | | | | | | Droughty |1.00

 | | | | | | |

 Gullied land--------| 23 |Not rated | |Not rated | |Not rated |

 | | | | | | |
Logan County, Oklahoma 233

Recreational Development, Part II—Continued

________________________________________________________________________________________________________

 | | | |

 Map symbol |Pct.| Paths and trails | Off-road | Golf fairways

 and soil name | of | | motorcycle trails | _____________________________________________________________________________

 |map | Rating class and |Value| Rating class and |Value| Rating class and |Value

 |unit| limiting features | | limiting features | | limiting features | ________________________________________________________________________________________________________

 | | | | | | |

SDND: | | | | | | |

 Stephenville--------| 44 |Not limited | |Not limited | |Somewhat limited |

 | | | | | | Depth to bedrock |0.65

 | | | | | | Content of large |0.03

 | | | | | | stones |

 | | | | | | |

 Darsil--------------| 29 |Not limited | |Not limited | |Very limited |

 | | | | | | Depth to bedrock |1.00

 | | | | | | Droughty |1.00

 | | | | | | |

 Newalla-------------| 21 |Not limited | |Not limited | |Not limited |

 | | | | | | |

SDND2: | | | | | | |

 Stephenville--------| 44 |Not limited | |Not limited | |Somewhat limited |

 | | | | | | Depth to bedrock |0.46

 | | | | | | Content of large |0.03

 | | | | | | stones |

 | | | | | | |

 Darsil--------------| 33 |Not limited | |Not limited | |Very limited |

 | | | | | | Depth to bedrock |1.00

 | | | | | | Droughty |1.00

 | | | | | | |

 Newalla-------------| 20 |Not limited | |Not limited | |Not limited |

 | | | | | | |

SlaB, SlaD: | | | | | | |

 Slaughterville------| 95 |Not limited | |Not limited | |Not limited |

 | | | | | | |

SlaF: | | | | | | |

 Slaughterville------| 95 |Not limited | |Not limited | |Somewhat limited |

 | | | | | | Slope |0.96

 | | | | | | |

StDC: | | | | | | |

 Stephenville--------| 55 |Not limited | |Not limited | |Somewhat limited |

 | | | | | | Depth to bedrock |0.46

 | | | | | | Content of large |0.03

 | | | | | | stones |

 | | | | | | |

 Darsil--------------| 30 |Not limited | |Not limited | |Very limited |

 | | | | | | Depth to bedrock |1.00

 | | | | | | Droughty |1.00

 | | | | | | |

StDC2: | | | | | | |

 Stephenville--------| 55 |Not limited | |Not limited | |Somewhat limited |

 | | | | | | Content of large |0.03

 | | | | | | stones |

 | | | | | | Depth to bedrock |0.01

 | | | | | | |

 Darsil--------------| 30 |Not limited | |Not limited | |Very limited |

 | | | | | | Depth to bedrock |1.00

 | | | | | | Droughty |1.00

 | | | | | | |

StDE: | | | | | | |

 Stephenville--------| 50 |Not limited | |Not limited | |Somewhat limited |

 | | | | | | Slope |0.96

 | | | | | | Depth to bedrock |0.71

 | | | | | | Content of large |0.03

 | | | | | | stones |

 | | | | | | |

 Darsil--------------| 40 |Somewhat limited | |Somewhat limited | |Very limited |

 | | Too sandy |0.34 | Too sandy |0.34 | Depth to bedrock |1.00

 | | | | | | Droughty |1.00
234 Soil Survey

Recreational Development, Part II—Continued

________________________________________________________________________________________________________

 | | | |

 Map symbol |Pct.| Paths and trails | Off-road | Golf fairways

 and soil name | of | | motorcycle trails | _____________________________________________________________________________

 |map | Rating class and |Value| Rating class and |Value| Rating class and |Value

 |unit| limiting features | | limiting features | | limiting features | ________________________________________________________________________________________________________

 | | | | | | |

SteB: | | | | | | |

 Stephenville--------| 94 |Not limited | |Not limited | |Somewhat limited |

 | | | | | | Depth to bedrock |0.10

 | | | | | | Content of large |0.03

 | | | | | | stones |

 | | | | | | |

SteC2: | | | | | | |

 Stephenville--------| 92 |Not limited | |Not limited | |Somewhat limited |

 | | | | | | Depth to bedrock |0.54

 | | | | | | Content of large |0.03

 | | | | | | stones |

 | | | | | | |

SUND: | | | | | | |

 Stephenville--------| 35 |Not limited | |Not limited | |Somewhat limited |

 | | | | | | Depth to bedrock |0.65

 | | | | | | Content of large |0.03

 | | | | | | stones |

 | | | | | | |

 Urban land----------| 30 |Not rated | |Not rated | |Not rated |

 | | | | | | |

 Newalla-------------| 15 |Not limited | |Not limited | |Not limited |

 | | | | | | |

TelB, TelC2: | | | | | | |

 Teller--------------| 96 |Not limited | |Not limited | |Not limited |

 | | | | | | |

TriA: | | | | | | |

 Tribbey-------------| 90 |Somewhat limited | |Somewhat limited | |Very limited |

 | | Flooding |0.40 | Flooding |0.40 | Flooding |1.00

 | | | | | | Depth to |0.19

 | | | | | | saturated zone |

 | | | | | | |

URB: | | | | | | |

 Urban land----------|100 |Not rated | |Not rated | |Not rated |

 | | | | | | |

W: | | | | | | |

 Water---------------|100 |Not rated | |Not rated | |Not rated |

 | | | | | | |

YaaA, YahA: | | | | | | |

 Yahola--------------| 87 |Not limited | |Not limited | |Somewhat limited |

 | | | | | | Flooding |0.60

 | | | | | | |

ZaHC: | | | | | | |

 Zaneis--------------| 55 |Not limited | |Not limited | |Not limited |

 | | | | | | |

 Huska---------------| 25 |Not limited | |Not limited | |Very limited |

 | | | | | | Sodium content |1.00

 | | | | | | Droughty |0.11

 | | | | | | Salinity |0.01

 | | | | | | |

ZanB, ZanC, ZanC2: | | | | | | |

 Zaneis--------------| 87 |Not limited | |Not limited | |Not limited |

 | | | | | | | ________________________________________________________________________________________________________
Logan County, Oklahoma 235

Engineering

This section provides information for planning land uses related to urban

development and to water management. Soils are rated for various uses, and the most

limiting features are identified. Ratings are given for sanitary facilities, waste

management, building site development, construction materials, and water

management. The ratings are based on observed performance of the soils and on the

estimated data and test data in the “Soil Properties” section.

Information in this section is intended for land use planning, for evaluating land use

alternatives, and for planning site investigations prior to design and construction. The

information, however, has limitations. For example, estimates and other data generally

apply only to that part of the soil within a depth of 6 feet. Because of the map scale,

small areas of different soils may be included within the mapped areas of a specific

soil.

The information is not site specific and does not eliminate the need for onsite

investigation of the soils or for testing and analysis by personnel experienced in the

design and construction of engineering works.

Government ordinances and regulations that restrict certain land uses or impose

specific design criteria were not considered in preparing the information in this section.

Local ordinances and regulations should be considered in planning, in site selection,

and in design.

Soil properties, site features, and observed performance were considered in

determining the ratings in this section. During the fieldwork for this soil survey,

determinations were made about grain-size distribution, liquid limit, plasticity index, soil

reaction, depth to bedrock, hardness of bedrock within 5 or 6 feet of the surface, soil

wetness, depth to a seasonal high water table, slope, likelihood of flooding, natural soil

structure aggregation, and soil density. Data were collected about kinds of clay

minerals, mineralogy of the sand and silt fractions, and the kinds of adsorbed cations.

Estimates were made for erodibility, permeability, corrosivity, shrink-swell potential,

available water capacity, and other behavioral characteristics affecting engineering

uses.

This information can be used to evaluate the potential of areas for residential,

commercial, industrial, and recreational uses; make preliminary estimates of

construction conditions; evaluate alternative routes for roads, streets, highways,

pipelines, and underground cables; evaluate alternative sites for sanitary landfills,

septic tank absorption fields, and sewage lagoons; plan detailed onsite investigations

of soils and geology; locate potential sources of gravel, sand, earthfill, and topsoil; plan

drainage systems, irrigation systems, ponds, terraces, and other structures for soil and

water conservation; and predict performance of proposed small structures and

pavements by comparing the performance of existing similar structures on the same or

similar soils.

The information in the tables, along with the soil maps, the soil descriptions, and

other data provided in this survey, can be used to make additional interpretations.

Some of the terms used in this soil survey have a special meaning in soil science

and are defined in the Glossary.

Sanitary Facilities

The tables “Sanitary Facilities, Part I” and “Sanitary Facilities, Part II” show the

degree and kind of soil limitations that affect septic tank absorption fields, sewage

lagoons, sanitary landfills, and daily cover for landfill. The ratings are both verbal and

numerical. Rating class terms indicate the extent to which the soils are limited by all of

the soil features that affect these uses.
236 Soil Survey

Not limited indicates that the soil has features that are very favorable for the

specified use. Good performance and very low maintenance can be expected.

Somewhat limited indicates that the soil has features that are moderately favorable

for the specified use. The limitations can be overcome or minimized by special

planning, design, or installation. Fair performance and moderate maintenance can be

expected.

Very limited indicates that the soil has one or more features that are unfavorable for

the specified use. The limitations generally cannot be overcome without major soil

reclamation, special design, or expensive installation procedures. Poor performance

and high maintenance can be expected.

Numerical ratings in the tables indicate the severity of individual limitations. The

ratings are shown as decimal fractions ranging from 0.01 to 1.00. They indicate

gradations between the point at which a soil feature has the greatest negative impact

on the use (1.00) and the point at which the soil feature is not a limitation (0.00).

Septic tank absorption fields are areas in which effluent from a septic tank is

distributed into the soil through subsurface tiles or perforated pipe. Only that part of the

soil below a depth of 24 inches and a restrictive feature is evaluated. The ratings are

based on the soil properties that affect absorption of the effluent, construction and

maintenance of the system, and public health. Permeability, depth to a water table,

ponding, depth to bedrock or a cemented pan, and flooding affect absorption of the

effluent. Stones and boulders, ice, and bedrock or a cemented pan interfere with

installation. Subsidence interferes with installation and maintenance. Excessive slope

may cause lateral seepage and surfacing of the effluent in downslope areas. Some

soils are underlain by loose sand and gravel or fractured bedrock at a depth of less

than 4 feet below the distribution lines. In these soils the absorption field may not

adequately filter the effluent, particularly when the system is new. As a result, the

ground water may become contaminated.

Sewage lagoons are shallow ponds constructed to hold sewage while aerobic

bacteria decompose the solid and liquid wastes. Lagoons should have a nearly level

floor surrounded by cut slopes or embankments of compacted soil. Nearly impervious

soil material for the lagoon floor and sides is required to minimize seepage and

contamination of ground water. Considered in the ratings are slope, permeability, depth

to a water table, ponding, depth to bedrock or a cemented pan, flooding, large stones,

and content of organic matter.

Soil permeability is a critical property affecting the suitability for sewage lagoons.

Most porous soils eventually become sealed when they are used as sites for sewage

lagoons. Until sealing occurs, however, the hazard of pollution is severe. Soils that

have a permeability rate of more than 2 inches per hour are too porous for the proper

functioning of sewage lagoons. In these soils, seepage of the effluent can result in

contamination of the ground water. Ground-water contamination is also a hazard if

fractured bedrock is within a depth of 40 inches, if the water table is high enough to

raise the level of sewage in the lagoon, or if floodwater overtops the lagoon. A high

content of organic matter is detrimental to proper functioning of the lagoon because it

inhibits aerobic activity. Slope, bedrock, and cemented pans can cause construction

problems, and large stones can hinder compaction of the lagoon floor. If the lagoon is

to be uniformly deep throughout, the slope must be gentle enough and the soil

material must be thick enough over bedrock or a cemented pan to make land

smoothing practical.

Trench sanitary landfill is an area where solid waste is placed in successive layers

in an excavated trench. The waste is spread, compacted, and covered daily with a thin

layer of soil excavated at the site. When the trench is full, a final cover of soil material

at least 2 feet thick is placed over the landfill. The ratings in the table are based on the

soil properties that affect the risk of pollution, the ease of excavation, trafficability, and

revegetation. These properties include permeability, depth to bedrock or a cemented
Logan County, Oklahoma 237

pan, depth to a water table, ponding, slope, flooding, texture, stones and boulders,

highly organic layers, soil reaction, and content of salts and sodium. Unless otherwise

stated, the ratings apply only to that part of the soil within a depth of about 6 feet. For

deeper trenches, onsite investigation may be needed. Hard, nonrippable bedrock,

creviced bedrock, or highly permeable strata in or directly below the proposed trench

bottom can affect the ease of excavation and the hazard of ground-water pollution.

Slope affects construction of the trenches and the movement of surface water around

the landfill. It also affects the construction and performance of roads in areas of the

landfill. Soil texture and consistence affect the ease with which the trench is dug and

the ease with which the soil can be used as daily or final cover. They determine the

workability of the soil when dry and when wet. Soils that are plastic and sticky when

wet are difficult to excavate, grade, or compact and are difficult to place as a uniformly

thick cover over a layer of refuse. The soil material used as the final cover for a trench

landfill should be suitable for plants. It should not have excess sodium or salts and

should not be too acid. The surface layer generally has the best workability, the highest

content of organic matter, and the best potential for plants. Material from the surface

layer should be stockpiled for use as the final cover.

Area sanitary landfill is an area where solid waste is placed in successive layers on

the surface of the soil. The waste is spread, compacted, and covered daily with a thin

layer of soil from a source away from the site. A final cover of soil material at least 2

feet thick is placed over the completed landfill. The ratings in the table are based on

the soil properties that affect trafficability and the risk of pollution. These properties

include flooding, permeability, depth to a water table, ponding, slope, and depth to

bedrock or a cemented pan. Flooding is a serious problem because it can result in

pollution in areas downstream from the landfill. If permeability is too rapid or if

fractured bedrock, a fractured cemented pan, or the water table is close to the surface,

the leachate can contaminate the water supply. Slope is a consideration because of

the extra grading required to maintain roads in the steeper areas of the landfill. Also,

leachate may flow along the surface of the soils in the steeper areas and cause

difficult seepage problems.

Daily cover for landfill is the soil material that is used to cover compacted solid

waste in an area sanitary landfill. The soil material is obtained offsite, transported to

the landfill, and spread over the waste. The ratings in the table also apply to the final

cover for a landfill. They are based on the soil properties that affect workability, the

ease of digging, and the ease of moving and spreading the material over the refuse

daily during wet and dry periods. These properties include soil texture, depth to a

water table, ponding, rock fragments, slope, depth to bedrock or a cemented pan,

reaction, and content of salts, sodium, or lime. Loamy or silty soils that are free of

large stones and excess gravel are the best cover for a landfill. Clayey soils may be

sticky and difficult to spread; sandy soils are subject to wind erosion. Slope affects the

ease of excavation and of moving the cover material. Also, it can influence runoff,

erosion, and reclamation of the borrow area. After soil material has been removed, the

soil material remaining in the borrow area must be thick enough over bedrock, a

cemented pan, or the water table to permit revegetation. The soil material used as the

final cover for a landfill should be suitable for plants. It should not have excess sodium,

salts, or lime and should not be too acid.
238 Soil Survey

Sanitary Facilities, Part I

(The information in this table indicates the dominant soil condition but does

 not eliminate the need for onsite investigation. The numbers in the

 value columns range from 0.01 to 1.00. The larger the value, the greater

 the limitation. See text for further explanation of ratings in this

 table)

______________________________________________________________________________

 | | |

 Map symbol |Pct.| Septic tank | Sewage lagoons

 and soil name | of | absorption fields | ___________________________________________________

 |map | Rating class and |Value| Rating class and |Value

 |unit| limiting features | | limiting features | ______________________________________________________________________________

 | | | | |

AspA, AstA: | | | | |

 Ashport-------------| 95 |Very limited | |Very limited |

 | | Flooding |1.00 | Flooding |1.00

 | | Restricted |0.46 | Seepage |0.53

 | | permeability | | |

 | | | | |

BetA, BetB: | | | | |

 Bethany-------------| 93 |Very limited | |Not limited |

 | | Restricted |1.00 | |

 | | permeability | | |

 | | | | |

BocA: | | | | |

 Bocox---------------| 94 |Very limited | |Very limited |

 | | Depth to |1.00 | Seepage |1.00

 | | saturated zone | | Depth to |1.00

 | | Filtering |1.00 | saturated zone |

 | | capacity | | Ponding |1.00

 | | Ponding |1.00 | |

 | | Restricted |0.46 | |

 | | permeability | | |

 | | | | |

BtlA: | | | | |

 Bathel--------------| 94 |Very limited | |Very limited |

 | | Ponding |1.00 | Ponding |1.00

 | | Depth to |1.00 | Seepage |1.00

 | | saturated zone | | Depth to |1.00

 | | Filtering |1.00 | saturated zone |

 | | capacity | | |

 | | | | |

CaaA: | | | | |

 Canadian------------| 94 |Very limited | |Very limited |

 | | Filtering |1.00 | Seepage |1.00

 | | capacity | | Flooding |0.40

 | | Flooding |0.40 | |

 | | | | |

CAID: | | | | |

 Coyle---------------| 31 |Very limited | |Very limited |

 | | Restricted |1.00 | Depth to soft |1.00

 | | permeability | | bedrock |

 | | Depth to bedrock |1.00 | Seepage |0.53

 | | | | Slope |0.32

 | | | | |

 Ashport-------------| 28 |Very limited | |Very limited |

 | | Flooding |1.00 | Flooding |1.00

 | | Restricted |0.46 | Seepage |0.53

 | | permeability | | |

 | | | | |

 Ironmound-----------| 22 |Very limited | |Very limited |

 | | Restricted |1.00 | Depth to soft |1.00

 | | permeability | | bedrock |

 | | Depth to bedrock |1.00 | Slope |1.00

 | | | | Seepage |0.53

 | | | | |
Logan County, Oklahoma 239

Sanitary Facilities, Part I—Continued

______________________________________________________________________________

 | | |

 Map symbol |Pct.| Septic tank | Sewage lagoons

 and soil name | of | absorption fields | ___________________________________________________

 |map | Rating class and |Value| Rating class and |Value

 |unit| limiting features | | limiting features | ______________________________________________________________________________

 | | | | |

CoIC2: | | | | |

 Coyle---------------| 61 |Very limited | |Very limited |

 | | Restricted |1.00 | Depth to soft |1.00

 | | permeability | | bedrock |

 | | Depth to bedrock |1.00 | Seepage |0.53

 | | | | Slope |0.32

 | | | | |

 Ironmound-----------| 33 |Very limited | |Very limited |

 | | Restricted |1.00 | Depth to soft |1.00

 | | permeability | | bedrock |

 | | Depth to bedrock |1.00 | Seepage |0.53

 | | | | Slope |0.32

 | | | | |

CoUB: | | | | |

 Coyle---------------| 55 |Very limited | |Very limited |

 | | Depth to bedrock |1.00 | Depth to soft |1.00

 | | | | bedrock |

 | | | | Seepage |0.53

 | | | | |

 Urban land----------| 40 |Not rated | |Not rated |

 | | | | |

CoUC: | | | | |

 Coyle---------------| 42 |Very limited | |Very limited |

 | | Restricted |1.00 | Depth to soft |1.00

 | | permeability | | bedrock |

 | | Depth to bedrock |1.00 | Seepage |0.53

 | | | | Slope |0.08

 | | | | |

 Urban land----------| 38 |Not rated | |Not rated |

 | | | | |

CoyB: | | | | |

 Coyle---------------| 91 |Very limited | |Very limited |

 | | Restricted |1.00 | Depth to soft |1.00

 | | permeability | | bedrock |

 | | Depth to bedrock |1.00 | Seepage |0.53

 | | | | |

CoyC2: | | | | |

 Coyle---------------| 91 |Very limited | |Very limited |

 | | Restricted |1.00 | Depth to soft |1.00

 | | permeability | | bedrock |

 | | Depth to bedrock |1.00 | Seepage |0.53

 | | | | Slope |0.32

 | | | | |

CoZC3: | | | | |

 Coyle---------------| 70 |Very limited | |Very limited |

 | | Restricted |1.00 | Depth to soft |1.00

 | | permeability | | bedrock |

 | | Depth to bedrock |1.00 | Seepage |0.53

 | | | | Slope |0.32

 | | | | |

 Zaneis--------------| 15 |Very limited | |Somewhat limited |

 | | Restricted |1.00 | Depth to soft |0.71

 | | permeability | | bedrock |

 | | Depth to bedrock |0.89 | Seepage |0.53

 | | | | Slope |0.32

 | | | | |

DAM: | | | | |

 Dam-----------------|100 |Not rated | |Not rated |

 | | | | |
240 Soil Survey

Sanitary Facilities, Part I—Continued

______________________________________________________________________________

 | | |

 Map symbol |Pct.| Septic tank | Sewage lagoons

 and soil name | of | absorption fields | ___________________________________________________

 |map | Rating class and |Value| Rating class and |Value

 |unit| limiting features | | limiting features | ______________________________________________________________________________

 | | | | |

DerB: | | | | |

 Derby---------------| 90 |Very limited | |Very limited |

 | | Filtering |1.00 | Seepage |1.00

 | | capacity | | |

 | | | | |

DerD: | | | | |

 Derby---------------| 90 |Very limited | |Very limited |

 | | Filtering |1.00 | Seepage |1.00

 | | capacity | | Slope |0.92

 | | | | |

DerE: | | | | |

 Derby---------------| 90 |Very limited | |Very limited |

 | | Filtering |1.00 | Slope |1.00

 | | capacity | | Seepage |1.00

 | | Slope |0.63 | |

 | | | | |

DiRG: | | | | |

 Darsil--------------| 67 |Very limited | |Very limited |

 | | Depth to bedrock |1.00 | Depth to soft |1.00

 | | Slope |1.00 | bedrock |

 | | Restricted |0.72 | Slope |1.00

 | | permeability | | Seepage |1.00

 | | | | |

 Rock outcrop--------| 20 |Not rated | |Not rated |

 | | | | |

DouB: | | | | |

 Dougherty-----------| 91 |Somewhat limited | |Very limited |

 | | Restricted |0.46 | Seepage |1.00

 | | permeability | | |

 | | | | |

DouD: | | | | |

 Dougherty-----------| 91 |Somewhat limited | |Very limited |

 | | Restricted |0.46 | Seepage |1.00

 | | permeability | | Slope |0.92

 | | | | |

DUM: | | | | |

 Dumps---------------|100 |Not rated | |Not rated |

 | | | | |

EasA: | | | | |

 Easpur--------------| 93 |Very limited | |Very limited |

 | | Flooding |1.00 | Flooding |1.00

 | | Restricted |0.46 | Seepage |0.53

 | | permeability | | |

 | | | | |

GadA: | | | | |

 Gaddy---------------| 85 |Very limited | |Very limited |

 | | Flooding |1.00 | Flooding |1.00

 | | Filtering |1.00 | Seepage |1.00

 | | capacity | | |

 | | | | |

GaGA: | | | | |

 Gaddy---------------| 67 |Very limited | |Very limited |

 | | Flooding |1.00 | Flooding |1.00

 | | Filtering |1.00 | Seepage |1.00

 | | capacity | | |

 | | | | |
Logan County, Oklahoma 241

Sanitary Facilities, Part I—Continued

______________________________________________________________________________

 | | |

 Map symbol |Pct.| Septic tank | Sewage lagoons

 and soil name | of | absorption fields | ___________________________________________________

 |map | Rating class and |Value| Rating class and |Value

 |unit| limiting features | | limiting features | ______________________________________________________________________________

 | | | | |

GaGA: | | | | |

 Gracemore-----------| 23 |Very limited | |Very limited |

 | | Flooding |1.00 | Flooding |1.00

 | | Depth to |1.00 | Seepage |1.00

 | | saturated zone | | Depth to |1.00

 | | Filtering |1.00 | saturated zone |

 | | capacity | | |

 | | | | |

GMGE4: | | | | |

 Grainola------------| 40 |Very limited | |Very limited |

 | | Restricted |1.00 | Depth to soft |1.00

 | | permeability | | bedrock |

 | | Depth to bedrock |1.00 | Slope |1.00

 | | Slope |0.16 | |

 | | | | |

 Masham--------------| 30 |Very limited | |Very limited |

 | | Restricted |1.00 | Depth to soft |1.00

 | | permeability | | bedrock |

 | | Depth to bedrock |1.00 | Slope |1.00

 | | Slope |0.16 | |

 | | | | |

 Gullied land--------| 20 |Not rated | |Not rated |

 | | | | |

GMLG: | | | | |

 Grainola------------| 37 |Very limited | |Very limited |

 | | Restricted |1.00 | Depth to soft |1.00

 | | permeability | | bedrock |

 | | Depth to bedrock |1.00 | Slope |1.00

 | | Slope |1.00 | |

 | | | | |

 Masham--------------| 22 |Very limited | |Very limited |

 | | Restricted |1.00 | Depth to soft |1.00

 | | permeability | | bedrock |

 | | Depth to bedrock |1.00 | Slope |1.00

 | | Slope |1.00 | |

 | | | | |

 Lucien--------------| 21 |Very limited | |Very limited |

 | | Restricted |1.00 | Depth to soft |1.00

 | | permeability | | bedrock |

 | | Depth to bedrock |1.00 | Slope |1.00

 | | Slope |1.00 | Seepage |1.00

 | | | | |

GohC: | | | | |

 Goodnight-----------| 92 |Very limited | |Very limited |

 | | Filtering |1.00 | Seepage |1.00

 | | capacity | | Slope |0.08

 | | | | |

GohE: | | | | |

 Goodnight-----------| 92 |Very limited | |Very limited |

 | | Filtering |1.00 | Seepage |1.00

 | | capacity | | Slope |1.00

 | | Slope |0.16 | |

 | | | | |

GooE: | | | | |

 Goodnight-----------| 92 |Very limited | |Very limited |

 | | Filtering |1.00 | Seepage |1.00

 | | capacity | | Slope |1.00

 | | | | |
242 Soil Survey

Sanitary Facilities, Part I—Continued

______________________________________________________________________________

 | | |

 Map symbol |Pct.| Septic tank | Sewage lagoons

 and soil name | of | absorption fields | ___________________________________________________

 |map | Rating class and |Value| Rating class and |Value

 |unit| limiting features | | limiting features | ______________________________________________________________________________

 | | | | |

GooG: | | | | |

 Goodnight-----------| 92 |Very limited | |Very limited |

 | | Filtering |1.00 | Slope |1.00

 | | capacity | | Seepage |1.00

 | | Slope |1.00 | |

 | | | | |

GraC: | | | | |

 Grainola------------| 88 |Very limited | |Very limited |

 | | Restricted |1.00 | Depth to soft |1.00

 | | permeability | | bedrock |

 | | Depth to bedrock |1.00 | Slope |0.32

 | | | | |

GraD2: | | | | |

 Grainola------------| 89 |Very limited | |Very limited |

 | | Restricted |1.00 | Depth to soft |1.00

 | | permeability | | bedrock |

 | | Depth to bedrock |1.00 | Slope |1.00

 | | | | |

GrHC: | | | | |

 Grant---------------| 45 |Very limited | |Somewhat limited |

 | | Restricted |1.00 | Seepage |0.53

 | | permeability | | Slope |0.32

 | | Depth to bedrock |0.59 | Depth to soft |0.13

 | | | | bedrock |

 | | | | |

 Huska---------------| 35 |Very limited | |Somewhat limited |

 | | Restricted |1.00 | Depth to soft |0.42

 | | permeability | | bedrock |

 | | Depth to bedrock |0.78 | Slope |0.08

 | | | | |

GrIE: | | | | |

 Grainola------------| 71 |Very limited | |Very limited |

 | | Restricted |1.00 | Depth to soft |1.00

 | | permeability | | bedrock |

 | | Depth to bedrock |1.00 | Slope |1.00

 | | | | |

 Ironmound-----------| 20 |Very limited | |Very limited |

 | | Depth to bedrock |1.00 | Depth to soft |1.00

 | | | | bedrock |

 | | | | Slope |1.00

 | | | | Seepage |0.53

 | | | | |

GrLE: | | | | |

 Grainola------------| 55 |Very limited | |Very limited |

 | | Restricted |1.00 | Depth to soft |1.00

 | | permeability | | bedrock |

 | | Depth to bedrock |1.00 | Slope |1.00

 | | Slope |0.04 | |

 | | | | |

 Lucien--------------| 26 |Very limited | |Very limited |

 | | Depth to bedrock |1.00 | Depth to soft |1.00

 | | Slope |0.04 | bedrock |

 | | | | Slope |1.00

 | | | | |

HaGD4: | | | | |

 Harrah--------------| 70 |Somewhat limited | |Very limited |

 | | Restricted |0.46 | Slope |1.00

 | | permeability | | Seepage |0.53

 | | | | |

 Gullied land--------| 15 |Not rated | |Not rated |

 | | | | |
Logan County, Oklahoma 243

Sanitary Facilities, Part I—Continued

______________________________________________________________________________

 | | |

 Map symbol |Pct.| Septic tank | Sewage lagoons

 and soil name | of | absorption fields | ___________________________________________________

 |map | Rating class and |Value| Rating class and |Value

 |unit| limiting features | | limiting features | ______________________________________________________________________________

 | | | | |

HarC: | | | | |

 Harrah--------------| 91 |Somewhat limited | |Very limited |

 | | Restricted |0.46 | Seepage |1.00

 | | permeability | | Slope |0.32

 | | | | |

HarC2: | | | | |

 Harrah--------------| 91 |Somewhat limited | |Somewhat limited |

 | | Restricted |0.46 | Seepage |0.53

 | | permeability | | Slope |0.32

 | | | | |

HarG: | | | | |

 Harrah--------------| 86 |Very limited | |Very limited |

 | | Slope |1.00 | Slope |1.00

 | | Restricted |0.46 | Seepage |0.53

 | | permeability | | |

 | | | | |

HawB: | | | | |

 Hawley--------------| 94 |Somewhat limited | |Very limited |

 | | Restricted |0.46 | Seepage |1.00

 | | permeability | | Flooding |0.40

 | | Flooding |0.40 | |

 | | | | |

ICGD3: | | | | |

 Ironmound-----------| 40 |Very limited | |Very limited |

 | | Depth to bedrock |1.00 | Depth to soft |1.00

 | | | | bedrock |

 | | | | Slope |1.00

 | | | | |

 Coyle---------------| 30 |Very limited | |Very limited |

 | | Restricted |1.00 | Depth to soft |1.00

 | | permeability | | bedrock |

 | | Depth to bedrock |1.00 | Slope |1.00

 | | | | Seepage |0.53

 | | | | |

 Grainola------------| 15 |Very limited | |Very limited |

 | | Restricted |1.00 | Depth to soft |1.00

 | | permeability | | bedrock |

 | | Depth to bedrock |1.00 | Slope |1.00

 | | | | |

IrCE: | | | | |

 Ironmound-----------| 53 |Very limited | |Very limited |

 | | Depth to bedrock |1.00 | Depth to soft |1.00

 | | Slope |0.16 | bedrock |

 | | | | Slope |1.00

 | | | | Seepage |0.53

 | | | | |

 Coyle---------------| 22 |Very limited | |Very limited |

 | | Restricted |1.00 | Depth to soft |1.00

 | | permeability | | bedrock |

 | | Depth to bedrock |1.00 | Slope |1.00

 | | Slope |0.16 | Seepage |0.53

 | | | | |

IroC2: | | | | |

 Ironmound-----------| 90 |Very limited | |Very limited |

 | | Restricted |1.00 | Depth to soft |1.00

 | | permeability | | bedrock |

 | | Depth to bedrock |1.00 | Seepage |0.53

 | | | | Slope |0.32

 | | | | |
244 Soil Survey

Sanitary Facilities, Part I—Continued

______________________________________________________________________________

 | | |

 Map symbol |Pct.| Septic tank | Sewage lagoons

 and soil name | of | absorption fields | ___________________________________________________

 |map | Rating class and |Value| Rating class and |Value

 |unit| limiting features | | limiting features | ______________________________________________________________________________

 | | | | |

KgfB: | | | | |

 Kingfisher----------| 90 |Very limited | |Very limited |

 | | Restricted |1.00 | Depth to soft |1.00

 | | permeability | | bedrock |

 | | Depth to bedrock |1.00 | |

 | | | | |

KinC2: | | | | |

 Kingfisher----------| 90 |Very limited | |Very limited |

 | | Restricted |1.00 | Depth to soft |1.00

 | | permeability | | bedrock |

 | | Depth to bedrock |1.00 | Slope |0.32

 | | | | |

KonB: | | | | |

 Konawa--------------| 96 |Not limited | |Very limited |

 | | | | Seepage |1.00

 | | | | |

KonD2: | | | | |

 Konawa--------------| 96 |Not limited | |Very limited |

 | | | | Seepage |1.00

 | | | | Slope |0.92

 | | | | |

KrdA, KrkB: | | | | |

 Kirkland------------| 90 |Very limited | |Not limited |

 | | Restricted |1.00 | |

 | | permeability | | |

 | | | | |

LarA: | | | | |

 Lawrie--------------| 94 |Very limited | |Very limited |

 | | Flooding |1.00 | Flooding |1.00

 | | Restricted |0.46 | Seepage |0.53

 | | permeability | | |

 | | | | |

LawA: | | | | |

 Lawrie--------------| 86 |Somewhat limited | |Somewhat limited |

 | | Restricted |0.46 | Seepage |0.53

 | | permeability | | Flooding |0.40

 | | Flooding |0.40 | |

 | | | | |

LerA: | | | | |

 Lebron--------------| 80 |Very limited | |Very limited |

 | | Flooding |1.00 | Flooding |1.00

 | | Depth to |1.00 | Seepage |1.00

 | | saturated zone | | Ponding |1.00

 | | Filtering |1.00 | |

 | | capacity | | |

 | | Restricted |1.00 | |

 | | permeability | | |

 | | Ponding |1.00 | |

 | | | | |

LitB: | | | | |

 Littleaxe-----------| 80 |Somewhat limited | |Very limited |

 | | Restricted |0.72 | Seepage |1.00

 | | permeability | | Depth to soft |0.01

 | | Depth to bedrock |0.36 | bedrock |

 | | | | |

LitC2: | | | | |

 Littleaxe-----------| 80 |Somewhat limited | |Very limited |

 | | Restricted |0.72 | Seepage |1.00

 | | permeability | | Slope |0.32

 | | Depth to bedrock |0.69 | Depth to soft |0.26

 | | | | bedrock |
Logan County, Oklahoma 245

Sanitary Facilities, Part I—Continued

______________________________________________________________________________

 | | |

 Map symbol |Pct.| Septic tank | Sewage lagoons

 and soil name | of | absorption fields | ___________________________________________________

 |map | Rating class and |Value| Rating class and |Value

 |unit| limiting features | | limiting features | ______________________________________________________________________________

 | | | | |

M-W: | | | | |

 Miscellaneous water-|100 |Not rated | |Not rated |

 | | | | |

MaID: | | | | |

 Masham--------------| 52 |Very limited | |Very limited |

 | | Restricted |1.00 | Depth to soft |1.00

 | | permeability | | bedrock |

 | | Depth to bedrock |1.00 | Slope |1.00

 | | Slope |0.37 | |

 | | | | |

 Ironmound-----------| 27 |Very limited | |Very limited |

 | | Restricted |1.00 | Depth to soft |1.00

 | | permeability | | bedrock |

 | | Depth to bedrock |1.00 | Slope |1.00

 | | Slope |0.16 | |

 | | | | |

MaIG: | | | | |

 Masham--------------| 73 |Very limited | |Very limited |

 | | Depth to bedrock |1.00 | Depth to soft |1.00

 | | Slope |1.00 | bedrock |

 | | | | Slope |1.00

 | | | | |

 Ironmound-----------| 17 |Very limited | |Very limited |

 | | Depth to bedrock |1.00 | Depth to soft |1.00

 | | Slope |1.00 | bedrock |

 | | | | Slope |1.00

 | | | | Seepage |0.53

 | | | | |

MinB: | | | | |

 Minco---------------| 91 |Somewhat limited | |Somewhat limited |

 | | Restricted |0.46 | Seepage |0.53

 | | permeability | | |

 | | | | |

MinC: | | | | |

 Minco---------------| 91 |Somewhat limited | |Somewhat limited |

 | | Restricted |0.46 | Seepage |0.53

 | | permeability | | Slope |0.32

 | | | | |

MinD: | | | | |

 Minco---------------| 91 |Somewhat limited | |Very limited |

 | | Restricted |0.46 | Slope |1.00

 | | permeability | | Seepage |0.53

 | | | | |

MinF: | | | | |

 Minco---------------| 91 |Very limited | |Very limited |

 | | Slope |1.00 | Slope |1.00

 | | Restricted |0.46 | Seepage |0.53

 | | permeability | | |

 | | | | |

MllA: | | | | |

 Miller--------------| 95 |Very limited | |Very limited |

 | | Flooding |1.00 | Flooding |1.00

 | | Restricted |1.00 | |

 | | permeability | | |

 | | | | |

MulC: | | | | |

 Mulhall-------------| 88 |Very limited | |Somewhat limited |

 | | Restricted |1.00 | Seepage |0.53

 | | permeability | | Slope |0.32

 | | Depth to bedrock |0.01 | |

 | | | | |
246 Soil Survey

Sanitary Facilities, Part I—Continued

______________________________________________________________________________

 | | |

 Map symbol |Pct.| Septic tank | Sewage lagoons

 and soil name | of | absorption fields | ___________________________________________________

 |map | Rating class and |Value| Rating class and |Value

 |unit| limiting features | | limiting features | ______________________________________________________________________________

 | | | | |

MulC2: | | | | |

 Mulhall-------------| 88 |Very limited | |Somewhat limited |

 | | Restricted |1.00 | Seepage |0.53

 | | permeability | | Slope |0.32

 | | | | |

NavA, NavB: | | | | |

 Navina--------------| 96 |Somewhat limited | |Somewhat limited |

 | | Restricted |0.46 | Seepage |0.53

 | | permeability | | |

 | | | | |

NeGD4: | | | | |

 Newalla-------------| 75 |Very limited | |Somewhat limited |

 | | Restricted |1.00 | Depth to soft |0.77

 | | permeability | | bedrock |

 | | Depth to bedrock |0.91 | Slope |0.68

 | | | | |

 Gullied land--------| 15 |Not rated | |Not rated |

 | | | | |

NewB: | | | | |

 Newalla-------------| 90 |Very limited | |Somewhat limited |

 | | Restricted |1.00 | Depth to soft |0.77

 | | permeability | | bedrock |

 | | Depth to bedrock |0.91 | Seepage |0.53

 | | | | |

NorA: | | | | |

 Norge---------------| 93 |Very limited | |Somewhat limited |

 | | Restricted |1.00 | Seepage |0.53

 | | permeability | | |

 | | | | |

NorB: | | | | |

 Norge---------------| 90 |Very limited | |Somewhat limited |

 | | Restricted |1.00 | Seepage |0.28

 | | permeability | | |

 | | | | |

NorC2: | | | | |

 Norge---------------| 88 |Very limited | |Somewhat limited |

 | | Restricted |1.00 | Slope |0.32

 | | permeability | | |

 | | | | |

OWHD: | | | | |

 Oil waste land------| 50 |Not rated | |Not rated |

 | | | | |

 Huska---------------| 30 |Very limited | |Not limited |

 | | Restricted |1.00 | |

 | | permeability | | |

 | | Depth to bedrock |0.30 | |

 | | | | |

PieB: | | | | |

 Piedmont------------| 92 |Very limited | |Very limited |

 | | Restricted |1.00 | Depth to soft |1.00

 | | permeability | | bedrock |

 | | Depth to bedrock |1.00 | |

 | | | | |

PieC2: | | | | |

 Piedmont------------| 93 |Very limited | |Very limited |

 | | Restricted |1.00 | Depth to soft |1.00

 | | permeability | | bedrock |

 | | Depth to bedrock |1.00 | Slope |0.32

 | | | | |

PIT: | | | | |

 Pits----------------|100 |Not rated | |Not rated |
Logan County, Oklahoma 247

Sanitary Facilities, Part I—Continued

______________________________________________________________________________

 | | |

 Map symbol |Pct.| Septic tank | Sewage lagoons

 and soil name | of | absorption fields | ___________________________________________________

 |map | Rating class and |Value| Rating class and |Value

 |unit| limiting features | | limiting features | ______________________________________________________________________________

 | | | | |

PukA, PulA: | | | | |

 Pulaski-------------| 85 |Very limited | |Very limited |

 | | Flooding |1.00 | Flooding |1.00

 | | | | Seepage |1.00

 | | | | |

RenB: | | | | |

 Renfrow-------------| 89 |Very limited | |Not limited |

 | | Restricted |1.00 | |

 | | permeability | | |

 | | | | |

RenC: | | | | |

 Renfrow-------------| 89 |Very limited | |Somewhat limited |

 | | Restricted |1.00 | Slope |0.32

 | | permeability | | |

 | | Depth to bedrock |0.04 | |

 | | | | |

RewC2: | | | | |

 Renfrow-------------| 84 |Very limited | |Somewhat limited |

 | | Restricted |1.00 | Slope |0.32

 | | permeability | | |

 | | Depth to bedrock |0.14 | |

 | | | | |

RinB: | | | | |

 Renthin-------------| 81 |Very limited | |Somewhat limited |

 | | Restricted |1.00 | Depth to soft |0.13

 | | permeability | | bedrock |

 | | Depth to bedrock |0.59 | |

 | | | | |

RnnC2: | | | | |

 Renthin-------------| 80 |Very limited | |Somewhat limited |

 | | Restricted |1.00 | Depth to soft |0.42

 | | permeability | | bedrock |

 | | Depth to bedrock |0.78 | Slope |0.32

 | | | | |

SDGD4: | | | | |

 Stephenville--------| 32 |Very limited | |Very limited |

 | | Depth to bedrock |1.00 | Depth to soft |1.00

 | | Restricted |1.00 | bedrock |

 | | permeability | | Slope |1.00

 | | | | Seepage |0.53

 | | | | |

 Darsil--------------| 31 |Very limited | |Very limited |

 | | Depth to bedrock |1.00 | Depth to soft |1.00

 | | Restricted |0.72 | bedrock |

 | | permeability | | Slope |1.00

 | | | | Seepage |0.28

 | | | | |

 Gullied land--------| 23 |Not rated | |Not rated |

 | | | | |

SDND: | | | | |

 Stephenville--------| 44 |Very limited | |Very limited |

 | | Depth to bedrock |1.00 | Depth to soft |1.00

 | | Restricted |1.00 | bedrock |

 | | permeability | | Seepage |1.00

 | | | | Slope |1.00

 | | | | |

 Darsil--------------| 29 |Very limited | |Very limited |

 | | Depth to bedrock |1.00 | Depth to soft |1.00

 | | | | bedrock |

 | | | | Seepage |1.00

 | | | | Slope |1.00
248 Soil Survey

Sanitary Facilities, Part I—Continued

______________________________________________________________________________

 | | |

 Map symbol |Pct.| Septic tank | Sewage lagoons

 and soil name | of | absorption fields | ___________________________________________________

 |map | Rating class and |Value| Rating class and |Value

 |unit| limiting features | | limiting features | ______________________________________________________________________________

 | | | | |

SDND: | | | | |

 Newalla-------------| 21 |Very limited | |Very limited |

 | | Restricted |1.00 | Slope |1.00

 | | permeability | | Depth to soft |0.61

 | | Depth to bedrock |0.86 | bedrock |

 | | | | Seepage |0.53

 | | | | |

SDND2: | | | | |

 Stephenville--------| 44 |Very limited | |Very limited |

 | | Depth to bedrock |1.00 | Depth to soft |1.00

 | | Restricted |1.00 | bedrock |

 | | permeability | | Slope |1.00

 | | | | Seepage |0.53

 | | | | |

 Darsil--------------| 33 |Very limited | |Very limited |

 | | Depth to bedrock |1.00 | Depth to soft |1.00

 | | Restricted |0.72 | bedrock |

 | | permeability | | Slope |1.00

 | | | | Seepage |0.28

 | | | | |

 Newalla-------------| 20 |Very limited | |Very limited |

 | | Restricted |1.00 | Slope |1.00

 | | permeability | | Depth to soft |1.00

 | | Depth to bedrock |1.00 | bedrock |

 | | | | |

SlaB: | | | | |

 Slaughterville------| 95 |Very limited | |Very limited |

 | | Filtering |1.00 | Seepage |1.00

 | | capacity | | |

 | | | | |

SlaD: | | | | |

 Slaughterville------| 95 |Very limited | |Very limited |

 | | Filtering |1.00 | Seepage |1.00

 | | capacity | | Slope |1.00

 | | | | |

SlaF: | | | | |

 Slaughterville------| 95 |Very limited | |Very limited |

 | | Filtering |1.00 | Slope |1.00

 | | capacity | | Seepage |1.00

 | | Slope |0.96 | |

 | | | | |

StDC: | | | | |

 Stephenville--------| 55 |Very limited | |Very limited |

 | | Depth to bedrock |1.00 | Depth to soft |1.00

 | | Restricted |1.00 | bedrock |

 | | permeability | | Seepage |1.00

 | | | | Slope |0.32

 | | | | |

 Darsil--------------| 30 |Very limited | |Very limited |

 | | Depth to bedrock |1.00 | Depth to soft |1.00

 | | | | bedrock |

 | | | | Seepage |1.00

 | | | | Slope |0.08

 | | | | |

StDC2: | | | | |

 Stephenville--------| 55 |Very limited | |Very limited |

 | | Depth to bedrock |1.00 | Depth to soft |1.00

 | | Restricted |1.00 | bedrock |

 | | permeability | | Seepage |0.53

 | | | | Slope |0.08

 | | | | |
Logan County, Oklahoma 249

Sanitary Facilities, Part I—Continued

______________________________________________________________________________

 | | |

 Map symbol |Pct.| Septic tank | Sewage lagoons

 and soil name | of | absorption fields | ___________________________________________________

 |map | Rating class and |Value| Rating class and |Value

 |unit| limiting features | | limiting features | ______________________________________________________________________________

 | | | | |

StDC2: | | | | |

 Darsil--------------| 30 |Very limited | |Very limited |

 | | Depth to bedrock |1.00 | Depth to soft |1.00

 | | Restricted |0.72 | bedrock |

 | | permeability | | Seepage |1.00

 | | | | Slope |0.08

 | | | | |

StDE: | | | | |

 Stephenville--------| 50 |Very limited | |Very limited |

 | | Depth to bedrock |1.00 | Depth to soft |1.00

 | | Restricted |1.00 | bedrock |

 | | permeability | | Slope |1.00

 | | Slope |0.96 | Seepage |1.00

 | | | | |

 Darsil--------------| 40 |Very limited | |Very limited |

 | | Depth to bedrock |1.00 | Depth to soft |1.00

 | | | | bedrock |

 | | | | Seepage |1.00

 | | | | Slope |1.00

 | | | | |

SteB: | | | | |

 Stephenville--------| 94 |Very limited | |Very limited |

 | | Depth to bedrock |1.00 | Depth to soft |1.00

 | | Restricted |1.00 | bedrock |

 | | permeability | | Seepage |0.53

 | | | | |

SteC2: | | | | |

 Stephenville--------| 92 |Very limited | |Very limited |

 | | Depth to bedrock |1.00 | Depth to soft |1.00

 | | Restricted |1.00 | bedrock |

 | | permeability | | Seepage |0.53

 | | | | Slope |0.32

 | | | | |

SUND: | | | | |

 Stephenville--------| 35 |Very limited | |Very limited |

 | | Depth to bedrock |1.00 | Depth to soft |1.00

 | | Restricted |1.00 | bedrock |

 | | permeability | | Slope |1.00

 | | | | Seepage |0.53

 | | | | |

 Urban land----------| 30 |Not rated | |Not rated |

 | | | | |

 Newalla-------------| 15 |Very limited | |Very limited |

 | | Restricted |1.00 | Slope |1.00

 | | permeability | | Depth to soft |0.01

 | | Depth to bedrock |0.36 | bedrock |

 | | | | |

TelB: | | | | |

 Teller--------------| 96 |Somewhat limited | |Very limited |

 | | Restricted |0.46 | Seepage |1.00

 | | permeability | | |

 | | | | |

TelC2: | | | | |

 Teller--------------| 96 |Somewhat limited | |Very limited |

 | | Restricted |0.46 | Seepage |1.00

 | | permeability | | Slope |0.32

 | | | | |
250 Soil Survey

Sanitary Facilities, Part I—Continued

______________________________________________________________________________

 | | |

 Map symbol |Pct.| Septic tank | Sewage lagoons

 and soil name | of | absorption fields | ___________________________________________________

 |map | Rating class and |Value| Rating class and |Value

 |unit| limiting features | | limiting features | ______________________________________________________________________________

 | | | | |

TriA: | | | | |

 Tribbey-------------| 90 |Very limited | |Very limited |

 | | Flooding |1.00 | Flooding |1.00

 | | Depth to |1.00 | Seepage |1.00

 | | saturated zone | | Depth to |1.00

 | | | | saturated zone |

 | | | | |

URB: | | | | |

 Urban land----------|100 |Not rated | |Not rated |

 | | | | |

W: | | | | |

 Water---------------|100 |Not rated | |Not rated |

 | | | | |

YaaA, YahA: | | | | |

 Yahola--------------| 87 |Very limited | |Very limited |

 | | Flooding |1.00 | Flooding |1.00

 | | | | Seepage |1.00

 | | | | |

ZaHC: | | | | |

 Zaneis--------------| 55 |Very limited | |Somewhat limited |

 | | Restricted |1.00 | Seepage |0.53

 | | permeability | | Slope |0.32

 | | Depth to bedrock |0.69 | Depth to soft |0.26

 | | | | bedrock |

 | | | | |

 Huska---------------| 25 |Very limited | |Somewhat limited |

 | | Restricted |1.00 | Slope |0.32

 | | permeability | | |

 | | Depth to bedrock |0.30 | |

 | | | | |

ZanB: | | | | |

 Zaneis--------------| 87 |Very limited | |Somewhat limited |

 | | Restricted |1.00 | Depth to soft |0.88

 | | permeability | | bedrock |

 | | Depth to bedrock |0.96 | Seepage |0.53

 | | | | |

ZanC: | | | | |

 Zaneis--------------| 87 |Very limited | |Somewhat limited |

 | | Restricted |1.00 | Depth to soft |0.71

 | | permeability | | bedrock |

 | | Depth to bedrock |0.89 | Seepage |0.53

 | | | | Slope |0.32

 | | | | |

ZanC2: | | | | |

 Zaneis--------------| 87 |Very limited | |Somewhat limited |

 | | Restricted |1.00 | Seepage |0.53

 | | permeability | | Slope |0.32

 | | Depth to bedrock |0.47 | Depth to soft |0.05

 | | | | bedrock |

 | | | | | ______________________________________________________________________________
Logan County, Oklahoma 251

Sanitary Facilities, Part II

(The information in this table indicates the dominant soil condition but does not eliminate the need for

 onsite investigation. The numbers in the value columns range from 0.01 to 1.00. The larger the

 value, the greater the limitation. See text for further explanation of ratings in this table)

________________________________________________________________________________________________________

 |Pct.| Trench sanitary | Area sanitary | Daily cover for

 Map symbol | of | landfill | landfill | landfill _____________________________________________________________________________

 and soil name |map | Rating class and |Value| Rating class and |Value| Rating class and |Value

 |unit| limiting features | | limiting features | | limiting features | ________________________________________________________________________________________________________

 | | | | | | |

AspA: | | | | | | |

 Ashport-------------| 95 |Very limited | |Very limited | |Not limited |

 | | Flooding |1.00 | Flooding |1.00 | |

 | | | | | | |

AstA: | | | | | | |

 Ashport-------------| 90 |Very limited | |Very limited | |Not limited |

 | | Flooding |1.00 | Flooding |1.00 | |

 | | | | | | |

BetA, BetB: | | | | | | |

 Bethany-------------| 93 |Very limited | |Not limited | |Very limited |

 | | Too clayey |1.00 | | | Too clayey |1.00

 | | | | | | Hard to compact |1.00

 | | | | | | |

BocA: | | | | | | |

 Bocox---------------| 94 |Very limited | |Very limited | |Very limited |

 | | Depth to |1.00 | Depth to |1.00 | Depth to |1.00

 | | saturated zone | | saturated zone | | saturated zone |

 | | Ponding |1.00 | Seepage |1.00 | Ponding |1.00

 | | | | Ponding |1.00 | |

 | | | | | | |

BtlA: | | | | | | |

 Bathel--------------| 94 |Very limited | |Very limited | |Very limited |

 | | Depth to |1.00 | Ponding |1.00 | Ponding |1.00

 | | saturated zone | | Depth to |1.00 | Seepage |1.00

 | | Ponding |1.00 | saturated zone | | Depth to |0.24

 | | Seepage |1.00 | Seepage |1.00 | saturated zone |

 | | | | | | |

CaaA: | | | | | | |

 Canadian------------| 94 |Very limited | |Very limited | |Very limited |

 | | Seepage |1.00 | Seepage |1.00 | Seepage |1.00

 | | Flooding |0.40 | Flooding |0.40 | |

 | | | | | | |

CAID: | | | | | | |

 Coyle---------------| 31 |Very limited | |Very limited | |Very limited |

 | | Depth to bedrock |1.00 | Depth to bedrock |1.00 | Depth to bedrock |1.00

 | | Too clayey |0.50 | | | Too clayey |0.50

 | | | | | | |

 Ashport-------------| 28 |Very limited | |Very limited | |Not limited |

 | | Flooding |1.00 | Flooding |1.00 | |

 | | | | | | |

 Ironmound-----------| 22 |Very limited | |Very limited | |Very limited |

 | | Depth to bedrock |1.00 | Depth to bedrock |1.00 | Depth to bedrock |1.00

 | | | | | | |

CoIC2: | | | | | | |

 Coyle---------------| 61 |Very limited | |Very limited | |Very limited |

 | | Depth to bedrock |1.00 | Depth to bedrock |1.00 | Depth to bedrock |1.00

 | | Too clayey |0.50 | | | Too clayey |0.50

 | | | | | | |

 Ironmound-----------| 33 |Very limited | |Very limited | |Very limited |

 | | Depth to bedrock |1.00 | Depth to bedrock |1.00 | Depth to bedrock |1.00

 | | | | | | |

CoUB: | | | | | | |

 Coyle---------------| 55 |Very limited | |Very limited | |Very limited |

 | | Depth to bedrock |1.00 | Depth to bedrock |1.00 | Depth to bedrock |1.00

 | | Too clayey |0.50 | | | Too clayey |0.50

 | | | | | | |

 Urban land----------| 40 |Not rated | |Not rated | |Not rated |
252 Soil Survey

Sanitary Facilities, Part II—Continued

________________________________________________________________________________________________________

 |Pct.| Trench sanitary | Area sanitary | Daily cover for

 Map symbol | of | landfill | landfill | landfill _____________________________________________________________________________

 and soil name |map | Rating class and |Value| Rating class and |Value| Rating class and |Value

 |unit| limiting features | | limiting features | | limiting features | ________________________________________________________________________________________________________

 | | | | | | |

CoUC: | | | | | | |

 Coyle---------------| 42 |Very limited | |Very limited | |Very limited |

 | | Depth to bedrock |1.00 | Depth to bedrock |1.00 | Depth to bedrock |1.00

 | | | | | | |

 Urban land----------| 38 |Not rated | |Not rated | |Not rated |

 | | | | | | |

CoyB, CoyC2: | | | | | | |

 Coyle---------------| 91 |Very limited | |Very limited | |Very limited |

 | | Depth to bedrock |1.00 | Depth to bedrock |1.00 | Depth to bedrock |1.00

 | | | | | | |

CoZC3: | | | | | | |

 Coyle---------------| 70 |Very limited | |Very limited | |Very limited |

 | | Depth to bedrock |1.00 | Depth to bedrock |1.00 | Depth to bedrock |1.00

 | | Too clayey |0.50 | | | Too clayey |0.50

 | | | | | | |

 Zaneis--------------| 15 |Very limited | |Somewhat limited | |Somewhat limited |

 | | Depth to bedrock |1.00 | Depth to bedrock |0.71 | Depth to bedrock |0.71

 | | Too clayey |0.50 | | | Too clayey |0.50

 | | | | | | |

DAM: | | | | | | |

 Dam-----------------|100 |Not rated | |Not rated | |Not rated |

 | | | | | | |

DerB: | | | | | | |

 Derby---------------| 90 |Very limited | |Very limited | |Very limited |

 | | Seepage |1.00 | Seepage |1.00 | Seepage |1.00

 | | Too sandy |1.00 | | | Too sandy |0.50

 | | | | | | |

DerD: | | | | | | |

 Derby---------------| 90 |Very limited | |Very limited | |Very limited |

 | | Seepage |1.00 | Seepage |1.00 | Too sandy |1.00

 | | Too sandy |1.00 | | | Seepage |1.00

 | | | | | | |

DerE: | | | | | | |

 Derby---------------| 90 |Very limited | |Very limited | |Very limited |

 | | Seepage |1.00 | Seepage |1.00 | Too sandy |1.00

 | | Too sandy |1.00 | Slope |0.63 | Seepage |1.00

 | | Slope |0.63 | | | Slope |0.63

 | | | | | | |

DiRG: | | | | | | |

 Darsil--------------| 67 |Very limited | |Very limited | |Very limited |

 | | Slope |1.00 | Slope |1.00 | Depth to bedrock |1.00

 | | Depth to bedrock |1.00 | Depth to bedrock |1.00 | Slope |1.00

 | | Seepage |1.00 | | | |

 | | | | | | |

 Rock outcrop--------| 20 |Not rated | |Not rated | |Not rated |

 | | | | | | |

DouB: | | | | | | |

 Dougherty-----------| 91 |Very limited | |Very limited | |Not limited |

 | | Seepage |1.00 | Seepage |1.00 | |

 | | | | | | |

DouD: | | | | | | |

 Dougherty-----------| 91 |Very limited | |Very limited | |Somewhat limited |

 | | Seepage |1.00 | Seepage |1.00 | Seepage |0.52

 | | | | | | |

DUM: | | | | | | |

 Dumps---------------|100 |Not rated | |Not rated | |Not rated |

 | | | | | | |

EasA: | | | | | | |

 Easpur--------------| 93 |Very limited | |Very limited | |Not limited |

 | | Flooding |1.00 | Flooding |1.00 | |

 | | | | | | |
Logan County, Oklahoma 253

Sanitary Facilities, Part II—Continued

________________________________________________________________________________________________________

 |Pct.| Trench sanitary | Area sanitary | Daily cover for

 Map symbol | of | landfill | landfill | landfill _____________________________________________________________________________

 and soil name |map | Rating class and |Value| Rating class and |Value| Rating class and |Value

 |unit| limiting features | | limiting features | | limiting features | ________________________________________________________________________________________________________

 | | | | | | |

GadA: | | | | | | |

 Gaddy---------------| 85 |Very limited | |Very limited | |Very limited |

 | | Flooding |1.00 | Flooding |1.00 | Too sandy |1.00

 | | Seepage |1.00 | Seepage |1.00 | Seepage |1.00

 | | Too sandy |1.00 | | | |

 | | | | | | |

GaGA: | | | | | | |

 Gaddy---------------| 67 |Very limited | |Very limited | |Very limited |

 | | Flooding |1.00 | Flooding |1.00 | Too sandy |1.00

 | | Seepage |1.00 | Seepage |1.00 | Seepage |1.00

 | | Too sandy |1.00 | | | |

 | | | | | | |

 Gracemore-----------| 23 |Very limited | |Very limited | |Very limited |

 | | Flooding |1.00 | Flooding |1.00 | Depth to |1.00

 | | Depth to |1.00 | Depth to |1.00 | saturated zone |

 | | saturated zone | | saturated zone | | Too sandy |1.00

 | | Seepage |1.00 | Seepage |1.00 | Seepage |1.00

 | | Too sandy |1.00 | | | |

 | | | | | | |

GMGE4: | | | | | | |

 Grainola------------| 40 |Very limited | |Very limited | |Very limited |

 | | Depth to bedrock |1.00 | Depth to bedrock |1.00 | Depth to bedrock |1.00

 | | Too clayey |1.00 | Slope |0.16 | Too clayey |1.00

 | | Slope |0.16 | | | Hard to compact |1.00

 | | | | | | Slope |0.16

 | | | | | | |

 Masham--------------| 30 |Very limited | |Very limited | |Very limited |

 | | Depth to bedrock |1.00 | Depth to bedrock |1.00 | Depth to bedrock |1.00

 | | Slope |0.16 | Slope |0.16 | Hard to compact |1.00

 | | | | | | Slope |0.16

 | | | | | | |

 Gullied land--------| 20 |Not rated | |Not rated | |Not rated |

 | | | | | | |

GMLG: | | | | | | |

 Grainola------------| 37 |Very limited | |Very limited | |Very limited |

 | | Depth to bedrock |1.00 | Depth to bedrock |1.00 | Depth to bedrock |1.00

 | | Too clayey |1.00 | Slope |1.00 | Too clayey |1.00

 | | Slope |1.00 | | | Hard to compact |1.00

 | | | | | | Slope |1.00

 | | | | | | Gravel content |0.07

 | | | | | | |

 Masham--------------| 22 |Very limited | |Very limited | |Very limited |

 | | Slope |1.00 | Slope |1.00 | Depth to bedrock |1.00

 | | Depth to bedrock |1.00 | Depth to bedrock |1.00 | Slope |1.00

 | | | | | | Hard to compact |1.00

 | | | | | | |

 Lucien--------------| 21 |Very limited | |Very limited | |Very limited |

 | | Slope |1.00 | Slope |1.00 | Depth to bedrock |1.00

 | | Depth to bedrock |1.00 | Depth to bedrock |1.00 | Slope |1.00

 | | Seepage |1.00 | | | |

 | | | | | | |

GohC: | | | | | | |

 Goodnight-----------| 92 |Very limited | |Very limited | |Very limited |

 | | Seepage |1.00 | Seepage |1.00 | Too sandy |1.00

 | | Too sandy |1.00 | | | Seepage |1.00

 | | | | | | |

GohE: | | | | | | |

 Goodnight-----------| 92 |Very limited | |Very limited | |Very limited |

 | | Seepage |1.00 | Seepage |1.00 | Too sandy |1.00

 | | Too sandy |1.00 | Slope |0.16 | Seepage |1.00

 | | Slope |0.16 | | | Slope |0.16

 | | | | | | |
254 Soil Survey

Sanitary Facilities, Part II—Continued

________________________________________________________________________________________________________

 |Pct.| Trench sanitary | Area sanitary | Daily cover for

 Map symbol | of | landfill | landfill | landfill _____________________________________________________________________________

 and soil name |map | Rating class and |Value| Rating class and |Value| Rating class and |Value

 |unit| limiting features | | limiting features | | limiting features | ________________________________________________________________________________________________________

 | | | | | | |

GooE: | | | | | | |

 Goodnight-----------| 92 |Very limited | |Very limited | |Very limited |

 | | Seepage |1.00 | Seepage |1.00 | Too sandy |1.00

 | | Too sandy |1.00 | | | Seepage |1.00

 | | | | | | |

GooG: | | | | | | |

 Goodnight-----------| 92 |Very limited | |Very limited | |Very limited |

 | | Slope |1.00 | Slope |1.00 | Slope |1.00

 | | Seepage |1.00 | Seepage |1.00 | Too sandy |1.00

 | | Too sandy |1.00 | | | Seepage |1.00

 | | | | | | |

GraC: | | | | | | |

 Grainola------------| 88 |Very limited | |Very limited | |Very limited |

 | | Depth to bedrock |1.00 | Depth to bedrock |1.00 | Depth to bedrock |1.00

 | | | | | | Hard to compact |1.00

 | | | | | | |

GraD2: | | | | | | |

 Grainola------------| 89 |Very limited | |Very limited | |Very limited |

 | | Depth to bedrock |1.00 | Depth to bedrock |1.00 | Depth to bedrock |1.00

 | | Too clayey |1.00 | | | Too clayey |1.00

 | | | | | | Hard to compact |1.00

 | | | | | | |

GrHC: | | | | | | |

 Grant---------------| 45 |Very limited | |Somewhat limited | |Somewhat limited |

 | | Depth to bedrock |1.00 | Depth to bedrock |0.14 | Too clayey |0.50

 | | Too clayey |0.50 | | | Depth to bedrock |0.14

 | | | | | | |

 Huska---------------| 35 |Very limited | |Somewhat limited | |Very limited |

 | | Depth to bedrock |1.00 | Depth to bedrock |0.42 | Sodium content |1.00

 | | Sodium content |1.00 | | | Too clayey |1.00

 | | Too clayey |1.00 | | | Hard to compact |1.00

 | | | | | | Depth to bedrock |0.42

 | | | | | | |

GrIE: | | | | | | |

 Grainola------------| 71 |Very limited | |Very limited | |Very limited |

 | | Depth to bedrock |1.00 | Depth to bedrock |1.00 | Depth to bedrock |1.00

 | | Too clayey |1.00 | | | Too clayey |1.00

 | | | | | | Hard to compact |1.00

 | | | | | | |

 Ironmound-----------| 20 |Very limited | |Very limited | |Very limited |

 | | Depth to bedrock |1.00 | Depth to bedrock |1.00 | Depth to bedrock |1.00

 | | | | | | |

GrLE: | | | | | | |

 Grainola------------| 55 |Very limited | |Very limited | |Very limited |

 | | Depth to bedrock |1.00 | Depth to bedrock |1.00 | Depth to bedrock |1.00

 | | Too clayey |1.00 | Slope |0.04 | Too clayey |1.00

 | | Slope |0.04 | | | Hard to compact |1.00

 | | | | | | Slope |0.04

 | | | | | | |

 Lucien--------------| 26 |Very limited | |Very limited | |Very limited |

 | | Depth to bedrock |1.00 | Depth to bedrock |1.00 | Depth to bedrock |1.00

 | | Seepage |1.00 | Slope |0.04 | Slope |0.04

 | | Slope |0.04 | | | |

 | | | | | | |

HaGD4: | | | | | | |

 Harrah--------------| 70 |Not limited | |Not limited | |Not limited |

 | | | | | | |

 Gullied land--------| 15 |Not rated | |Not rated | |Not rated |

 | | | | | | |

HarC, HarC2: | | | | | | |

 Harrah--------------| 91 |Not limited | |Not limited | |Not limited |

 | | | | | | |
Logan County, Oklahoma 255

Sanitary Facilities, Part II—Continued

________________________________________________________________________________________________________

 |Pct.| Trench sanitary | Area sanitary | Daily cover for

 Map symbol | of | landfill | landfill | landfill _____________________________________________________________________________

 and soil name |map | Rating class and |Value| Rating class and |Value| Rating class and |Value

 |unit| limiting features | | limiting features | | limiting features | ________________________________________________________________________________________________________

 | | | | | | |

HarG: | | | | | | |

 Harrah--------------| 86 |Very limited | |Very limited | |Very limited |

 | | Slope |1.00 | Slope |1.00 | Slope |1.00

 | | | | | | |

HawB: | | | | | | |

 Hawley--------------| 94 |Very limited | |Somewhat limited | |Somewhat limited |

 | | Too sandy |1.00 | Flooding |0.40 | Too sandy |0.50

 | | Seepage |1.00 | | | Seepage |0.22

 | | Flooding |0.40 | | | |

 | | | | | | |

ICGD3: | | | | | | |

 Ironmound-----------| 40 |Very limited | |Very limited | |Very limited |

 | | Depth to bedrock |1.00 | Depth to bedrock |1.00 | Depth to bedrock |1.00

 | | | | | | |

 Coyle---------------| 30 |Very limited | |Very limited | |Very limited |

 | | Depth to bedrock |1.00 | Depth to bedrock |1.00 | Depth to bedrock |1.00

 | | Too clayey |0.50 | | | Too clayey |0.50

 | | | | | | |

 Grainola------------| 15 |Very limited | |Very limited | |Very limited |

 | | Depth to bedrock |1.00 | Depth to bedrock |1.00 | Depth to bedrock |1.00

 | | Too clayey |1.00 | | | Too clayey |1.00

 | | | | | | Hard to compact |1.00

 | | | | | | |

IrCE: | | | | | | |

 Ironmound-----------| 53 |Very limited | |Very limited | |Very limited |

 | | Depth to bedrock |1.00 | Depth to bedrock |1.00 | Depth to bedrock |1.00

 | | Slope |0.16 | Slope |0.16 | Slope |0.16

 | | | | | | |

 Coyle---------------| 22 |Very limited | |Very limited | |Very limited |

 | | Depth to bedrock |1.00 | Depth to bedrock |1.00 | Depth to bedrock |1.00

 | | Slope |0.16 | Slope |0.16 | Slope |0.16

 | | | | | | |

IroC2: | | | | | | |

 Ironmound-----------| 90 |Very limited | |Very limited | |Very limited |

 | | Depth to bedrock |1.00 | Depth to bedrock |1.00 | Depth to bedrock |1.00

 | | | | | | |

KgfB: | | | | | | |

 Kingfisher----------| 90 |Very limited | |Very limited | |Very limited |

 | | Depth to bedrock |1.00 | Depth to bedrock |1.00 | Depth to bedrock |1.00

 | | Too clayey |0.50 | | | Too clayey |0.50

 | | | | | | |

KinC2: | | | | | | |

 Kingfisher----------| 90 |Very limited | |Very limited | |Very limited |

 | | Depth to bedrock |1.00 | Depth to bedrock |1.00 | Depth to bedrock |1.00

 | | | | | | Hard to compact |1.00

 | | | | | | |

KonB: | | | | | | |

 Konawa--------------| 96 |Very limited | |Very limited | |Somewhat limited |

 | | Seepage |1.00 | Seepage |1.00 | Seepage |0.52

 | | Too sandy |1.00 | | | Too sandy |0.50

 | | | | | | |

KonD2: | | | | | | |

 Konawa--------------| 96 |Very limited | |Very limited | |Somewhat limited |

 | | Seepage |1.00 | Seepage |1.00 | Seepage |0.52

 | | | | | | |

KrdA, KrkB: | | | | | | |

 Kirkland------------| 90 |Very limited | |Not limited | |Very limited |

 | | Too clayey |1.00 | | | Too clayey |1.00

 | | | | | | Hard to compact |1.00

 | | | | | | |
256 Soil Survey

Sanitary Facilities, Part II—Continued

________________________________________________________________________________________________________

 |Pct.| Trench sanitary | Area sanitary | Daily cover for

 Map symbol | of | landfill | landfill | landfill _____________________________________________________________________________

 and soil name |map | Rating class and |Value| Rating class and |Value| Rating class and |Value

 |unit| limiting features | | limiting features | | limiting features | ________________________________________________________________________________________________________

 | | | | | | |

LarA: | | | | | | |

 Lawrie--------------| 94 |Very limited | |Very limited | |Not limited |

 | | Flooding |1.00 | Flooding |1.00 | |

 | | | | | | |

LawA: | | | | | | |

 Lawrie--------------| 86 |Somewhat limited | |Somewhat limited | |Somewhat limited |

 | | Flooding |0.40 | Flooding |0.40 | Too clayey |0.50

 | | | | | | |

LerA: | | | | | | |

 Lebron--------------| 80 |Very limited | |Very limited | |Very limited |

 | | Flooding |1.00 | Flooding |1.00 | Depth to |1.00

 | | Depth to |1.00 | Depth to |1.00 | saturated zone |

 | | saturated zone | | saturated zone | | Seepage |1.00

 | | Seepage |1.00 | Seepage |1.00 | Ponding |1.00

 | | Too sandy |1.00 | Ponding |1.00 | Too sandy |0.50

 | | Ponding |1.00 | | | |

 | | | | | | |

LitB: | | | | | | |

 Littleaxe-----------| 80 |Very limited | |Somewhat limited | |Somewhat limited |

 | | Depth to bedrock |1.00 | Depth to bedrock |0.01 | Depth to bedrock |0.01

 | | Seepage |1.00 | | | |

 | | | | | | |

LitC2: | | | | | | |

 Littleaxe-----------| 80 |Very limited | |Somewhat limited | |Somewhat limited |

 | | Depth to bedrock |1.00 | Depth to bedrock |0.26 | Depth to bedrock |0.26

 | | Seepage |1.00 | | | |

 | | | | | | |

M-W: | | | | | | |

 Miscellaneous water-|100 |Not rated | |Not rated | |Not rated |

 | | | | | | |

MaID: | | | | | | |

 Masham--------------| 52 |Very limited | |Very limited | |Very limited |

 | | Depth to bedrock |1.00 | Depth to bedrock |1.00 | Depth to bedrock |1.00

 | | Slope |0.37 | Slope |0.37 | Hard to compact |1.00

 | | | | | | Slope |0.37

 | | | | | | |

 Ironmound-----------| 27 |Very limited | |Very limited | |Very limited |

 | | Depth to bedrock |1.00 | Depth to bedrock |1.00 | Depth to bedrock |1.00

 | | Slope |0.16 | Slope |0.16 | Slope |0.16

 | | | | | | |

MaIG: | | | | | | |

 Masham--------------| 73 |Very limited | |Very limited | |Very limited |

 | | Slope |1.00 | Slope |1.00 | Depth to bedrock |1.00

 | | Depth to bedrock |1.00 | Depth to bedrock |1.00 | Slope |1.00

 | | | | | | Hard to compact |1.00

 | | | | | | |

 Ironmound-----------| 17 |Very limited | |Very limited | |Very limited |

 | | Slope |1.00 | Slope |1.00 | Depth to bedrock |1.00

 | | Depth to bedrock |1.00 | Depth to bedrock |1.00 | Slope |1.00

 | | | | | | |

MinB, MinC, MinD: | | | | | | |

 Minco---------------| 91 |Not limited | |Not limited | |Not limited |

 | | | | | | |

MinF: | | | | | | |

 Minco---------------| 91 |Very limited | |Very limited | |Very limited |

 | | Slope |1.00 | Slope |1.00 | Slope |1.00

 | | | | | | |

MllA: | | | | | | |

 Miller--------------| 95 |Very limited | |Very limited | |Very limited |

 | | Flooding |1.00 | Flooding |1.00 | Too clayey |1.00

 | | Too clayey |1.00 | | | Hard to compact |1.00

 | | | | | | |
Logan County, Oklahoma 257

Sanitary Facilities, Part II—Continued

________________________________________________________________________________________________________

 |Pct.| Trench sanitary | Area sanitary | Daily cover for

 Map symbol | of | landfill | landfill | landfill _____________________________________________________________________________

 and soil name |map | Rating class and |Value| Rating class and |Value| Rating class and |Value

 |unit| limiting features | | limiting features | | limiting features | ________________________________________________________________________________________________________

 | | | | | | |

MulC: | | | | | | |

 Mulhall-------------| 88 |Very limited | |Not limited | |Not limited |

 | | Depth to bedrock |1.00 | | | |

 | | | | | | |

MulC2: | | | | | | |

 Mulhall-------------| 88 |Not limited | |Not limited | |Not limited |

 | | | | | | |

NavA, NavB: | | | | | | |

 Navina--------------| 96 |Very limited | |Not limited | |Not limited |

 | | Seepage |1.00 | | | |

 | | | | | | |

NeGD4: | | | | | | |

 Newalla-------------| 75 |Very limited | |Somewhat limited | |Very limited |

 | | Depth to bedrock |1.00 | Depth to bedrock |0.77 | Too clayey |1.00

 | | Too clayey |1.00 | | | Hard to compact |1.00

 | | | | | | Depth to bedrock |0.77

 | | | | | | |

 Gullied land--------| 15 |Not rated | |Not rated | |Not rated |

 | | | | | | |

NewB: | | | | | | |

 Newalla-------------| 90 |Very limited | |Somewhat limited | |Very limited |

 | | Depth to bedrock |1.00 | Depth to bedrock |0.77 | Too clayey |1.00

 | | Too clayey |1.00 | | | Hard to compact |1.00

 | | | | | | Depth to bedrock |0.77

 | | | | | | |

NorA: | | | | | | |

 Norge---------------| 93 |Somewhat limited | |Not limited | |Somewhat limited |

 | | Too clayey |0.50 | | | Too clayey |0.50

 | | | | | | |

NorB: | | | | | | |

 Norge---------------| 90 |Somewhat limited | |Not limited | |Somewhat limited |

 | | Too clayey |0.50 | | | Too clayey |0.50

 | | | | | | |

NorC2: | | | | | | |

 Norge---------------| 88 |Somewhat limited | |Not limited | |Somewhat limited |

 | | Too clayey |0.50 | | | Too clayey |0.50

 | | | | | | |

OWHD: | | | | | | |

 Oil waste land------| 50 |Not rated | |Not rated | |Not rated |

 | | | | | | |

 Huska---------------| 30 |Very limited | |Not limited | |Very limited |

 | | Depth to bedrock |1.00 | | | Sodium content |1.00

 | | Sodium content |1.00 | | | Too clayey |1.00

 | | Too clayey |1.00 | | | Hard to compact |1.00

 | | | | | | |

PieB: | | | | | | |

 Piedmont------------| 92 |Very limited | |Very limited | |Very limited |

 | | Depth to bedrock |1.00 | Depth to bedrock |1.00 | Depth to bedrock |1.00

 | | Too clayey |1.00 | | | Too clayey |1.00

 | | | | | | Hard to compact |1.00

 | | | | | | |

PieC2: | | | | | | |

 Piedmont------------| 93 |Very limited | |Very limited | |Very limited |

 | | Depth to bedrock |1.00 | Depth to bedrock |1.00 | Depth to bedrock |1.00

 | | | | | | Hard to compact |1.00

 | | | | | | |

PIT: | | | | | | |

 Pits----------------|100 |Not rated | |Not rated | |Not rated |

 | | | | | | |
258 Soil Survey

Sanitary Facilities, Part II—Continued

________________________________________________________________________________________________________

 |Pct.| Trench sanitary | Area sanitary | Daily cover for

 Map symbol | of | landfill | landfill | landfill _____________________________________________________________________________

 and soil name |map | Rating class and |Value| Rating class and |Value| Rating class and |Value

 |unit| limiting features | | limiting features | | limiting features | ________________________________________________________________________________________________________

 | | | | | | |

PukA, PulA: | | | | | | |

 Pulaski-------------| 85 |Very limited | |Very limited | |Somewhat limited |

 | | Flooding |1.00 | Flooding |1.00 | Seepage |0.52

 | | Seepage |1.00 | Seepage |1.00 | Too sandy |0.50

 | | Too sandy |1.00 | | | |

 | | | | | | |

RenB: | | | | | | |

 Renfrow-------------| 89 |Very limited | |Not limited | |Very limited |

 | | Too clayey |1.00 | | | Too clayey |1.00

 | | | | | | Hard to compact |1.00

 | | | | | | |

RenC: | | | | | | |

 Renfrow-------------| 89 |Very limited | |Not limited | |Very limited |

 | | Depth to bedrock |1.00 | | | Too clayey |1.00

 | | Too clayey |1.00 | | | Hard to compact |1.00

 | | | | | | |

RewC2: | | | | | | |

 Renfrow-------------| 84 |Very limited | |Not limited | |Very limited |

 | | Depth to bedrock |1.00 | | | Too clayey |1.00

 | | Too clayey |1.00 | | | Hard to compact |1.00

 | | | | | | |

RinB: | | | | | | |

 Renthin-------------| 81 |Very limited | |Somewhat limited | |Very limited |

 | | Depth to bedrock |1.00 | Depth to bedrock |0.14 | Too clayey |1.00

 | | Too clayey |1.00 | | | Hard to compact |1.00

 | | | | | | Depth to bedrock |0.14

 | | | | | | |

RnnC2: | | | | | | |

 Renthin-------------| 80 |Very limited | |Somewhat limited | |Very limited |

 | | Depth to bedrock |1.00 | Depth to bedrock |0.42 | Too clayey |1.00

 | | Too clayey |1.00 | | | Hard to compact |1.00

 | | | | | | Depth to bedrock |0.42

 | | | | | | |

SDGD4: | | | | | | |

 Stephenville--------| 32 |Very limited | |Very limited | |Very limited |

 | | Depth to bedrock |1.00 | Depth to bedrock |1.00 | Depth to bedrock |1.00

 | | | | | | |

 Darsil--------------| 31 |Very limited | |Very limited | |Very limited |

 | | Depth to bedrock |1.00 | Depth to bedrock |1.00 | Depth to bedrock |1.00

 | | Seepage |1.00 | | | |

 | | | | | | |

 Gullied land--------| 23 |Not rated | |Not rated | |Not rated |

 | | | | | | |

SDND: | | | | | | |

 Stephenville--------| 44 |Very limited | |Very limited | |Very limited |

 | | Depth to bedrock |1.00 | Depth to bedrock |1.00 | Depth to bedrock |1.00

 | | | | | | |

 Darsil--------------| 29 |Very limited | |Very limited | |Very limited |

 | | Depth to bedrock |1.00 | Depth to bedrock |1.00 | Depth to bedrock |1.00

 | | Seepage |1.00 | | | Seepage |1.00

 | | Too sandy |1.00 | | | Too sandy |0.50

 | | | | | | |

 Newalla-------------| 21 |Very limited | |Somewhat limited | |Very limited |

 | | Depth to bedrock |1.00 | Depth to bedrock |0.61 | Too clayey |1.00

 | | | | | | Hard to compact |1.00

 | | | | | | Depth to bedrock |0.61

 | | | | | | |
Logan County, Oklahoma 259

Sanitary Facilities, Part II—Continued

________________________________________________________________________________________________________

 |Pct.| Trench sanitary | Area sanitary | Daily cover for

 Map symbol | of | landfill | landfill | landfill _____________________________________________________________________________

 and soil name |map | Rating class and |Value| Rating class and |Value| Rating class and |Value

 |unit| limiting features | | limiting features | | limiting features | ________________________________________________________________________________________________________

 | | | | | | |

SDND2: | | | | | | |

 Stephenville--------| 44 |Very limited | |Very limited | |Very limited |

 | | Depth to bedrock |1.00 | Depth to bedrock |1.00 | Depth to bedrock |1.00

 | | | | | | |

 Darsil--------------| 33 |Very limited | |Very limited | |Very limited |

 | | Depth to bedrock |1.00 | Depth to bedrock |1.00 | Depth to bedrock |1.00

 | | Seepage |1.00 | | | |

 | | | | | | |

 Newalla-------------| 20 |Very limited | |Somewhat limited | |Very limited |

 | | Depth to bedrock |1.00 | Depth to bedrock |1.00 | Hard to compact |1.00

 | | | | | | Depth to bedrock |1.00

SlaB: | | | | | | |

 Slaughterville------| 95 |Very limited | |Very limited | |Somewhat limited |

 | | Seepage |1.00 | Seepage |1.00 | Seepage |0.52

 | | | | | | |

SlaD: | | | | | | |

 Slaughterville------| 95 |Very limited | |Very limited | |Very limited |

 | | Seepage |1.00 | Seepage |1.00 | Seepage |1.00

 | | Too sandy |1.00 | | | Too sandy |0.50

 | | | | | | |

SlaF: | | | | | | |

 Slaughterville------| 95 |Very limited | |Very limited | |Somewhat limited |

 | | Seepage |1.00 | Seepage |1.00 | Slope |0.96

 | | Slope |0.96 | Slope |0.96 | Seepage |0.52

 | | | | | | |

StDC: | | | | | | |

 Stephenville--------| 55 |Very limited | |Very limited | |Very limited |

 | | Depth to bedrock |1.00 | Depth to bedrock |1.00 | Depth to bedrock |1.00

 | | | | | | |

 Darsil--------------| 30 |Very limited | |Very limited | |Very limited |

 | | Depth to bedrock |1.00 | Depth to bedrock |1.00 | Depth to bedrock |1.00

 | | Seepage |1.00 | | | Seepage |1.00

 | | | | | | |

StDC2: | | | | | | |

 Stephenville--------| 55 |Very limited | |Very limited | |Very limited |

 | | Depth to bedrock |1.00 | Depth to bedrock |1.00 | Depth to bedrock |1.00

 | | | | | | |

 Darsil--------------| 30 |Very limited | |Very limited | |Very limited |

 | | Depth to bedrock |1.00 | Depth to bedrock |1.00 | Depth to bedrock |1.00

 | | Seepage |1.00 | | | |

 | | | | | | |

StDE: | | | | | | |

 Stephenville--------| 50 |Very limited | |Very limited | |Very limited |

 | | Depth to bedrock |1.00 | Depth to bedrock |1.00 | Depth to bedrock |1.00

 | | Slope |0.96 | Slope |0.96 | Slope |0.96

 | | | | | | |

 Darsil--------------| 40 |Very limited | |Very limited | |Very limited |

 | | Depth to bedrock |1.00 | Depth to bedrock |1.00 | Depth to bedrock |1.00

 | | Seepage |1.00 | | | Seepage |1.00

 | | Too sandy |1.00 | | | Too sandy |0.50

 | | | | | | |

SteB: | | | | | | |

 Stephenville--------| 94 |Very limited | |Very limited | |Very limited |

 | | Depth to bedrock |1.00 | Depth to bedrock |1.00 | Depth to bedrock |1.00

 | | | | | | |

SteC2: | | | | | | |

 Stephenville--------| 92 |Very limited | |Very limited | |Very limited |

 | | Depth to bedrock |1.00 | Depth to bedrock |1.00 | Depth to bedrock |1.00

 | | | | | | |
260 Soil Survey

Sanitary Facilities, Part II—Continued

________________________________________________________________________________________________________

 |Pct.| Trench sanitary | Area sanitary | Daily cover for

 Map symbol | of | landfill | landfill | landfill _____________________________________________________________________________

 and soil name |map | Rating class and |Value| Rating class and |Value| Rating class and |Value

 |unit| limiting features | | limiting features | | limiting features | ________________________________________________________________________________________________________

 | | | | | | |

SUND: | | | | | | |

 Stephenville--------| 35 |Very limited | |Very limited | |Very limited |

 | | Depth to bedrock |1.00 | Depth to bedrock |1.00 | Depth to bedrock |1.00

 | | | | | | |

 Urban land----------| 30 |Not rated | |Not rated | |Not rated |

 | | | | | | |

 Newalla-------------| 15 |Very limited | |Somewhat limited | |Very limited |

 | | Depth to bedrock |1.00 | Depth to bedrock |0.01 | Too clayey |1.00

 | | Too clayey |1.00 | | | Hard to compact |1.00

 | | | | | | Depth to bedrock |0.01

 | | | | | | |

TelB: | | | | | | |

 Teller--------------| 96 |Very limited | |Not limited | |Somewhat limited |

 | | Seepage |1.00 | | | Seepage |0.52

 | | Too clayey |0.50 | | | Too clayey |0.50

 | | | | | | |

TelC2: | | | | | | |

 Teller--------------| 96 |Somewhat limited | |Very limited | |Somewhat limited |

 | | Too clayey |0.50 | Seepage |1.00 | Too clayey |0.50

 | | | | | | |

TriA: | | | | | | |

 Tribbey-------------| 90 |Very limited | |Very limited | |Somewhat limited |

 | | Flooding |1.00 | Flooding |1.00 | Depth to |0.86

 | | Depth to |1.00 | Depth to |1.00 | saturated zone |

 | | saturated zone | | saturated zone | | Seepage |0.52

 | | Seepage |1.00 | Seepage |1.00 | |

 | | | | | | |

URB: | | | | | | |

 Urban land----------|100 |Not rated | |Not rated | |Not rated |

 | | | | | | |

W: | | | | | | |

 Water---------------|100 |Not rated | |Not rated | |Not rated |

 | | | | | | |

YaaA, YahA: | | | | | | |

 Yahola--------------| 87 |Very limited | |Very limited | |Somewhat limited |

 | | Flooding |1.00 | Flooding |1.00 | Seepage |0.52

 | | Seepage |1.00 | Seepage |1.00 | |

 | | | | | | |

ZaHC: | | | | | | |

 Zaneis--------------| 55 |Very limited | |Somewhat limited | |Somewhat limited |

 | | Depth to bedrock |1.00 | Depth to bedrock |0.26 | Depth to bedrock |0.26

 | | | | | | |

 Huska---------------| 25 |Very limited | |Not limited | |Very limited |

 | | Depth to bedrock |1.00 | | | Sodium content |1.00

 | | Sodium content |1.00 | | | Hard to compact |1.00

 | | Too clayey |0.50 | | | Too clayey |0.50

 | | | | | | |

ZanB: | | | | | | |

 Zaneis--------------| 87 |Very limited | |Somewhat limited | |Somewhat limited |

 | | Depth to bedrock |1.00 | Depth to bedrock |0.88 | Depth to bedrock |0.88

 | | Too clayey |0.50 | | | Too clayey |0.50

 | | | | | | |

ZanC: | | | | | | |

 Zaneis--------------| 87 |Very limited | |Somewhat limited | |Somewhat limited |

 | | Depth to bedrock |1.00 | Depth to bedrock |0.71 | Depth to bedrock |0.71

 | | | | | | |

ZanC2: | | | | | | |

 Zaneis--------------| 87 |Very limited | |Somewhat limited | |Somewhat limited |

 | | Depth to bedrock |1.00 | Depth to bedrock |0.05 | Depth to bedrock |0.05

 | | | | | | | ________________________________________________________________________________________________________
Logan County, Oklahoma 261

Building Site Development

Soil properties influence the development of building sites, including the selection of

the site, the design of the structure, construction, performance after construction, and

maintenance. The tables “Building Site Development, Part I” and “Building Site

Development, Part II” show the degree and kind of soil limitations that affect dwellings

with and without basements, small commercial buildings, local roads and streets,

shallow excavations, and lawns and landscaping. The ratings in the tables are both

verbal and numerical. Rating class terms indicate the extent to which the soils are

limited by all of the soil features that affect building site development.

Not limited indicates that the soil has features that are very favorable for the

specified use. Good performance and very low maintenance can be expected.

Somewhat limited indicates that the soil has features that are moderately favorable

for the specified use. The limitations can be overcome or minimized by special

planning, design, or installation. Fair performance and moderate maintenance can be

expected.

Very limited indicates that the soil has one or more features that are unfavorable for

the specified use. The limitations generally cannot be overcome without major soil

reclamation, special design, or expensive installation procedures. Poor performance

and high maintenance can be expected.

Numerical ratings in the tables indicate the severity of individual limitations. The

ratings are shown as decimal fractions ranging from 0.01 to 1.00. They indicate

gradations between the point at which a soil feature has the greatest negative impact

on the use (1.00) and the point at which the soil feature is not a limitation (0.00).

Dwellings are single-family houses of three stories or less. For dwellings without

basements, the foundation is assumed to consist of spread footings of reinforced

concrete built on undisturbed soil at a depth of 2 feet or at the depth of maximum frost

penetration, whichever is deeper. For dwellings with basements, the foundation is

assumed to consist of spread footings of reinforced concrete built on undisturbed soil

at a depth of about 7 feet. The ratings for dwellings are based on the soil properties

that affect the capacity of the soil to support a load without movement and on the

properties that affect excavation and construction costs. The properties that affect the

load-supporting capacity include depth to a water table, ponding, flooding, subsidence,

linear extensibility (shrink-swell potential), and compressibility. Compressibility is

inferred from the Unified classification. The properties that affect the ease and amount

of excavation include depth to a water table, ponding, flooding, slope, depth to bedrock

or a cemented pan, hardness of bedrock or a cemented pan, and the amount and size

of rock fragments.

Small commercial buildings are structures that are less than three stories high and

do not have basements. The foundation is assumed to consist of spread footings of

reinforced concrete built on undisturbed soil at a depth of 2 feet or at the depth of

maximum frost penetration, whichever is deeper. The ratings are based on the soil

properties that affect the capacity of the soil to support a load without movement and

on the properties that affect excavation and construction costs. The properties that

affect the load-supporting capacity include depth to a water table, ponding, flooding,

subsidence, linear extensibility (shrink-swell potential), and compressibility (which is

inferred from the Unified classification). The properties that affect the ease and amount

of excavation include flooding, depth to a water table, ponding, slope, depth to bedrock

or a cemented pan, hardness of bedrock or a cemented pan, and the amount and size

of rock fragments.

Local roads and streets have an all-weather surface and carry automobile and light

truck traffic all year. They have a subgrade of cut or fill soil material; a base of gravel,

crushed rock, or soil material stabilized by lime or cement; and a surface of flexible

material (asphalt), rigid material (concrete), or gravel with a binder. The ratings are
262 Soil Survey

based on the soil properties that affect the ease of excavation and grading and the

traffic-supporting capacity. The properties that affect the ease of excavation and

grading are depth to bedrock or a cemented pan, hardness of bedrock or a cemented

pan, depth to a water table, ponding, flooding, the amount of large stones, and slope.

The properties that affect the traffic-supporting capacity are soil strength (as inferred

from the AASHTO group index number), subsidence, linear extensibility (shrink-swell

potential), the potential for frost action, depth to a water table, and ponding.

Shallow excavations are trenches or holes dug to a maximum depth of 5 or 6 feet

for graves, utility lines, open ditches, or other purposes. The ratings are based on the

soil properties that influence the ease of digging and the resistance to sloughing.

Depth to bedrock or a cemented pan, hardness of bedrock or a cemented pan, the

amount of large stones, and dense layers influence the ease of digging, filling, and

compacting. Depth to the seasonal high water table, flooding, and ponding may restrict

the period when excavations can be made. Slope influences the ease of using

machinery. Soil texture, depth to the water table, and linear extensibility (shrink-swell

potential) influence the resistance to sloughing.

Lawns and landscaping require soils on which turf and ornamental trees and shrubs

can be established and maintained. Irrigation is not considered in the ratings. The

ratings are based on the soil properties that affect plant growth and trafficability after

vegetation is established. The properties that affect plant growth are reaction; depth to

a water table; ponding; depth to bedrock or a cemented pan; the available water

capacity in the upper 40 inches; the content of salts, sodium, or calcium carbonate;

and sulfidic materials. The properties that affect trafficability are flooding, depth to a

water table, ponding, slope, stoniness, and the amount of sand, clay, or organic matter

in the surface layer.
Logan County, Oklahoma 263

Building Site Development, Part I

(The information in this table indicates the dominant soil condition but does not eliminate the need

 for onsite investigation. The numbers in the value columns range from 0.01 to 1.00. The larger

 the value, the greater the limitation. See text for further explanation of ratings in this table)

________________________________________________________________________________________________________

 |Pct.| Dwellings without | Dwellings with | Small commercial

 Map symbol | of | basements | basements | buildings _____________________________________________________________________________

 and soil name |map | Rating class and |Value| Rating class and |Value| Rating class and |Value

 |unit| limiting features | | limiting features | | limiting features | ________________________________________________________________________________________________________

 | | | | | | |

AspA: | | | | | | |

 Ashport-------------| 95 |Very limited | |Very limited | |Very limited |

 | | Flooding |1.00 | Flooding |1.00 | Flooding |1.00

 | | Shrink-swell |0.50 | Shrink-swell |0.50 | Shrink-swell |0.50

 | | | | | | |

AstA: | | | | | | |

 Ashport-------------| 90 |Very limited | |Very limited | |Very limited |

 | | Flooding |1.00 | Flooding |1.00 | Flooding |1.00

 | | Shrink-swell |0.50 | Shrink-swell |0.50 | Shrink-swell |0.50

 | | | | | | |

BetA: | | | | | | |

 Bethany-------------| 93 |Very limited | |Very limited | |Very limited |

 | | Shrink-swell |1.00 | Shrink-swell |1.00 | Shrink-swell |1.00

 | | | | | | |

BetB: | | | | | | |

 Bethany-------------| 93 |Somewhat limited | |Very limited | |Somewhat limited |

 | | Shrink-swell |0.50 | Shrink-swell |1.00 | Shrink-swell |0.50

 | | | | | | |

BocA: | | | | | | |

 Bocox---------------| 94 |Very limited | |Very limited | |Very limited |

 | | Depth to |1.00 | Depth to |1.00 | Depth to |1.00

 | | saturated zone | | saturated zone | | saturated zone |

 | | Ponding |1.00 | Ponding |1.00 | Ponding |1.00

 | | | | | | |

BtlA: | | | | | | |

 Bathel--------------| 94 |Very limited | |Very limited | |Very limited |

 | | Ponding |1.00 | Ponding |1.00 | Ponding |1.00

 | | Shrink-swell |0.50 | Depth to |0.99 | Shrink-swell |0.50

 | | | | saturated zone | | |

 | | | | | | |

CaaA: | | | | | | |

 Canadian------------| 94 |Very limited | |Very limited | |Very limited |

 | | Flooding |1.00 | Flooding |1.00 | Flooding |1.00

 | | | | | | |

CAID: | | | | | | |

 Coyle---------------| 31 |Not limited | |Somewhat limited | |Not limited |

 | | | | Depth to soft |0.06 | |

 | | | | bedrock | | |

 | | | | | | |

 Ashport-------------| 28 |Very limited | |Very limited | |Very limited |

 | | Flooding |1.00 | Flooding |1.00 | Flooding |1.00

 | | Shrink-swell |0.50 | Shrink-swell |0.50 | Shrink-swell |0.50

 | | | | | | |

 Ironmound-----------| 22 |Somewhat limited | |Very limited | |Somewhat limited |

 | | Depth to soft |1.00 | Depth to soft |1.00 | Depth to soft |1.00

 | | bedrock | | bedrock | | bedrock |

 | | | | | | Slope |0.88

 | | | | | | |

CoIC2: | | | | | | |

 Coyle---------------| 61 |Not limited | |Somewhat limited | |Not limited |

 | | | | Depth to soft |0.03 | |

 | | | | bedrock | | |

 | | | | | | |

 Ironmound-----------| 33 |Somewhat limited | |Very limited | |Somewhat limited |

 | | Depth to soft |1.00 | Depth to soft |1.00 | Depth to soft |1.00

 | | bedrock | | bedrock | | bedrock |

 | | | | | | |
264 Soil Survey

Building Site Development, Part I—Continued

________________________________________________________________________________________________________

 |Pct.| Dwellings without | Dwellings with | Small commercial

 Map symbol | of | basements | basements | buildings _____________________________________________________________________________

 and soil name |map | Rating class and |Value| Rating class and |Value| Rating class and |Value

 |unit| limiting features | | limiting features | | limiting features | ________________________________________________________________________________________________________

 | | | | | | |

CoUB: | | | | | | |

 Coyle---------------| 55 |Not limited | |Somewhat limited | |Not limited |

 | | | | Depth to soft |0.97 | |

 | | | | bedrock | | |

 | | | | | | |

 Urban land----------| 40 |Not rated | |Not rated | |Not rated |

 | | | | | | |

CoUC: | | | | | | |

 Coyle---------------| 42 |Not limited | |Somewhat limited | |Not limited |

 | | | | Depth to soft |0.54 | |

 | | | | bedrock | | |

 | | | | | | |

 Urban land----------| 38 |Not rated | |Not rated | |Not rated |

 | | | | | | |

CoyB: | | | | | | |

 Coyle---------------| 91 |Not limited | |Somewhat limited | |Not limited |

 | | | | Depth to soft |0.35 | |

 | | | | bedrock | | |

 | | | | | | |

CoyC2: | | | | | | |

 Coyle---------------| 91 |Not limited | |Somewhat limited | |Not limited |

 | | | | Depth to soft |0.71 | |

 | | | | bedrock | | |

 | | | | | | |

CoZC3: | | | | | | |

 Coyle---------------| 70 |Not limited | |Somewhat limited | |Not limited |

 | | | | Depth to soft |0.35 | |

 | | | | bedrock | | |

 | | | | | | |

 Zaneis--------------| 15 |Somewhat limited | |Somewhat limited | |Somewhat limited |

 | | Shrink-swell |0.50 | Shrink-swell |0.50 | Shrink-swell |0.50

 | | | | | | |

DAM: | | | | | | |

 Dam-----------------|100 |Not rated | |Not rated | |Not rated |

 | | | | | | |

DerB: | | | | | | |

 Derby---------------| 90 |Not limited | |Not limited | |Not limited |

 | | | | | | |

DerD: | | | | | | |

 Derby---------------| 90 |Not limited | |Not limited | |Somewhat limited |

 | | | | | | Slope |0.50

 | | | | | | |

DerE: | | | | | | |

 Derby---------------| 90 |Somewhat limited | |Somewhat limited | |Very limited |

 | | Slope |0.63 | Slope |0.63 | Slope |1.00

 | | | | | | |

DiRG: | | | | | | |

 Darsil--------------| 67 |Very limited | |Very limited | |Very limited |

 | | Slope |1.00 | Slope |1.00 | Slope |1.00

 | | Depth to soft |1.00 | Depth to soft |1.00 | Depth to soft |1.00

 | | bedrock | | bedrock | | bedrock |

 | | | | | | |

 Rock outcrop--------| 20 |Not rated | |Not rated | |Not rated |

 | | | | | | |

DouB: | | | | | | |

 Dougherty-----------| 91 |Not limited | |Not limited | |Not limited |

 | | | | | | |

DouD: | | | | | | |

 Dougherty-----------| 91 |Not limited | |Not limited | |Somewhat limited |

 | | | | | | Slope |0.50

 | | | | | | |
Logan County, Oklahoma 265

Building Site Development, Part I—Continued

________________________________________________________________________________________________________

 |Pct.| Dwellings without | Dwellings with | Small commercial

 Map symbol | of | basements | basements | buildings _____________________________________________________________________________

 and soil name |map | Rating class and |Value| Rating class and |Value| Rating class and |Value

 |unit| limiting features | | limiting features | | limiting features | ________________________________________________________________________________________________________

 | | | | | | |

DUM: | | | | | | |

 Dumps---------------|100 |Not rated | |Not rated | |Not rated |

 | | | | | | |

EasA: | | | | | | |

 Easpur--------------| 93 |Very limited | |Very limited | |Very limited |

 | | Flooding |1.00 | Flooding |1.00 | Flooding |1.00

 | | | | | | |

GadA: | | | | | | |

 Gaddy---------------| 85 |Very limited | |Very limited | |Very limited |

 | | Flooding |1.00 | Flooding |1.00 | Flooding |1.00

 | | | | | | |

GaGA: | | | | | | |

 Gaddy---------------| 67 |Very limited | |Very limited | |Very limited |

 | | Flooding |1.00 | Flooding |1.00 | Flooding |1.00

 | | | | | | |

 Gracemore-----------| 23 |Very limited | |Very limited | |Very limited |

 | | Flooding |1.00 | Flooding |1.00 | Flooding |1.00

 | | Depth to |1.00 | Depth to |1.00 | Depth to |1.00

 | | saturated zone | | saturated zone | | saturated zone |

 | | | | | | |

GMGE4: | | | | | | |

 Grainola------------| 40 |Very limited | |Very limited | |Very limited |

 | | Shrink-swell |1.00 | Shrink-swell |1.00 | Shrink-swell |1.00

 | | Slope |0.16 | Slope |0.16 | Slope |1.00

 | | | | Depth to soft |0.01 | |

 | | | | bedrock | | |

 | | | | | | |

 Masham--------------| 30 |Somewhat limited | |Very limited | |Very limited |

 | | Depth to soft |1.00 | Depth to soft |1.00 | Depth to soft |1.00

 | | bedrock | | bedrock | | bedrock |

 | | Slope |0.16 | Slope |0.16 | Slope |1.00

 | | | | | | |

 Gullied land--------| 20 |Not rated | |Not rated | |Not rated |

 | | | | | | |

GMLG: | | | | | | |

 Grainola------------| 37 |Very limited | |Very limited | |Very limited |

 | | Shrink-swell |1.00 | Shrink-swell |1.00 | Shrink-swell |1.00

 | | Slope |1.00 | Slope |1.00 | Slope |1.00

 | | | | Depth to soft |0.46 | |

 | | | | bedrock | | |

 | | | | | | |

 Masham--------------| 22 |Very limited | |Very limited | |Very limited |

 | | Slope |1.00 | Slope |1.00 | Slope |1.00

 | | Depth to soft |1.00 | Depth to soft |1.00 | Depth to soft |1.00

 | | bedrock | | bedrock | | bedrock |

 | | | | | | |

 Lucien--------------| 21 |Very limited | |Very limited | |Very limited |

 | | Slope |1.00 | Slope |1.00 | Slope |1.00

 | | Depth to soft |1.00 | Depth to soft |1.00 | Depth to soft |1.00

 | | bedrock | | bedrock | | bedrock |

 | | | | | | |

GohC: | | | | | | |

 Goodnight-----------| 92 |Not limited | |Not limited | |Not limited |

 | | | | | | |

GohE: | | | | | | |

 Goodnight-----------| 92 |Somewhat limited | |Somewhat limited | |Very limited |

 | | Slope |0.16 | Slope |0.16 | Slope |1.00

 | | | | | | |

GooE: | | | | | | |

 Goodnight-----------| 92 |Not limited | |Not limited | |Very limited |

 | | | | | | Slope |1.00

 | | | | | | |
266 Soil Survey

Building Site Development, Part I—Continued

________________________________________________________________________________________________________

 |Pct.| Dwellings without | Dwellings with | Small commercial

 Map symbol | of | basements | basements | buildings _____________________________________________________________________________

 and soil name |map | Rating class and |Value| Rating class and |Value| Rating class and |Value

 |unit| limiting features | | limiting features | | limiting features | ________________________________________________________________________________________________________

 | | | | | | |

GooG: | | | | | | |

 Goodnight-----------| 92 |Very limited | |Very limited | |Very limited |

 | | Slope |1.00 | Slope |1.00 | Slope |1.00

 | | | | | | |

GraC: | | | | | | |

 Grainola------------| 88 |Very limited | |Somewhat limited | |Very limited |

 | | Shrink-swell |1.00 | Depth to soft |0.29 | Shrink-swell |1.00

 | | | | bedrock | | |

 | | | | | | |

GraD2: | | | | | | |

 Grainola------------| 89 |Very limited | |Very limited | |Very limited |

 | | Shrink-swell |1.00 | Shrink-swell |1.00 | Shrink-swell |1.00

 | | | | Depth to soft |0.01 | Slope |0.88

 | | | | bedrock | | |

 | | | | | | |

GrHC: | | | | | | |

 Grant---------------| 45 |Not limited | |Not limited | |Not limited |

 | | | | | | |

 Huska---------------| 35 |Very limited | |Very limited | |Very limited |

 | | Shrink-swell |1.00 | Shrink-swell |1.00 | Shrink-swell |1.00

 | | | | | | |

GrIE: | | | | | | |

 Grainola------------| 71 |Very limited | |Very limited | |Very limited |

 | | Shrink-swell |1.00 | Shrink-swell |1.00 | Shrink-swell |1.00

 | | | | Depth to soft |0.01 | Slope |1.00

 | | | | bedrock | | |

 | | | | | | |

 Ironmound-----------| 20 |Somewhat limited | |Very limited | |Very limited |

 | | Depth to soft |1.00 | Depth to soft |1.00 | Depth to soft |1.00

 | | bedrock | | bedrock | | bedrock |

 | | | | | | Slope |1.00

 | | | | | | |

GrLE: | | | | | | |

 Grainola------------| 55 |Very limited | |Very limited | |Very limited |

 | | Shrink-swell |1.00 | Shrink-swell |1.00 | Shrink-swell |1.00

 | | Slope |0.04 | Depth to soft |0.74 | Slope |1.00

 | | | | bedrock | | |

 | | | | Slope |0.04 | |

 | | | | | | |

 Lucien--------------| 26 |Somewhat limited | |Very limited | |Very limited |

 | | Depth to soft |1.00 | Depth to soft |1.00 | Depth to soft |1.00

 | | bedrock | | bedrock | | bedrock |

 | | Slope |0.04 | Slope |0.04 | Slope |1.00

 | | | | | | |

HaGD4: | | | | | | |

 Harrah--------------| 70 |Not limited | |Not limited | |Somewhat limited |

 | | | | | | Slope |0.88

 | | | | | | |

 Gullied land--------| 15 |Not rated | |Not rated | |Not rated |

 | | | | | | |

HarC, HarC2: | | | | | | |

 Harrah--------------| 91 |Not limited | |Not limited | |Not limited |

 | | | | | | |

HarG: | | | | | | |

 Harrah--------------| 86 |Very limited | |Very limited | |Very limited |

 | | Slope |1.00 | Slope |1.00 | Slope |1.00

 | | | | | | |

HawB: | | | | | | |

 Hawley--------------| 94 |Very limited | |Very limited | |Very limited |

 | | Flooding |1.00 | Flooding |1.00 | Flooding |1.00

 | | | | | | |
Logan County, Oklahoma 267

Building Site Development, Part I—Continued

________________________________________________________________________________________________________

 |Pct.| Dwellings without | Dwellings with | Small commercial

 Map symbol | of | basements | basements | buildings _____________________________________________________________________________

 and soil name |map | Rating class and |Value| Rating class and |Value| Rating class and |Value

 |unit| limiting features | | limiting features | | limiting features | ________________________________________________________________________________________________________

 | | | | | | |

ICGD3: | | | | | | |

 Ironmound-----------| 40 |Somewhat limited | |Very limited | |Somewhat limited |

 | | Depth to soft |1.00 | Depth to soft |1.00 | Depth to soft |1.00

 | | bedrock | | bedrock | | bedrock |

 | | | | | | Slope |0.88

 | | | | | | |

 Coyle---------------| 30 |Not limited | |Somewhat limited | |Somewhat limited |

 | | | | Depth to soft |0.10 | Slope |0.88

 | | | | bedrock | | |

 | | | | | | |

 Grainola------------| 15 |Very limited | |Very limited | |Very limited |

 | | Shrink-swell |1.00 | Shrink-swell |1.00 | Shrink-swell |1.00

 | | | | Depth to soft |0.15 | Slope |0.88

 | | | | bedrock | | |

 | | | | | | |

IrCE: | | | | | | |

 Ironmound-----------| 53 |Somewhat limited | |Very limited | |Very limited |

 | | Depth to soft |1.00 | Depth to soft |1.00 | Depth to soft |1.00

 | | bedrock | | bedrock | | bedrock |

 | | Slope |0.16 | Slope |0.16 | Slope |1.00

 | | | | | | |

 Coyle---------------| 22 |Somewhat limited | |Somewhat limited | |Very limited |

 | | Slope |0.16 | Depth to soft |0.79 | Slope |1.00

 | | | | bedrock | | |

 | | | | Slope |0.16 | |

 | | | | | | |

IroC2: | | | | | | |

 Ironmound-----------| 90 |Somewhat limited | |Very limited | |Somewhat limited |

 | | Depth to soft |1.00 | Depth to soft |1.00 | Depth to soft |1.00

 | | bedrock | | bedrock | | bedrock |

 | | | | | | |

KgfB: | | | | | | |

 Kingfisher----------| 90 |Somewhat limited | |Somewhat limited | |Somewhat limited |

 | | Shrink-swell |0.50 | Shrink-swell |0.50 | Shrink-swell |0.50

 | | | | Depth to soft |0.01 | |

 | | | | bedrock | | |

 | | | | | | |

KinC2: | | | | | | |

 Kingfisher----------| 90 |Not limited | |Somewhat limited | |Not limited |

 | | | | Depth to soft |0.71 | |

 | | | | bedrock | | |

 | | | | | | |

KonB: | | | | | | |

 Konawa--------------| 96 |Not limited | |Not limited | |Not limited |

 | | | | | | |

KonD2: | | | | | | |

 Konawa--------------| 96 |Not limited | |Not limited | |Somewhat limited |

 | | | | | | Slope |0.50

 | | | | | | |

KrdA, KrkB: | | | | | | |

 Kirkland------------| 90 |Very limited | |Very limited | |Very limited |

 | | Shrink-swell |1.00 | Shrink-swell |1.00 | Shrink-swell |1.00

 | | | | | | |

LarA: | | | | | | |

 Lawrie--------------| 94 |Very limited | |Very limited | |Very limited |

 | | Flooding |1.00 | Flooding |1.00 | Flooding |1.00

 | | Shrink-swell |0.50 | Shrink-swell |0.50 | Shrink-swell |0.50

 | | | | | | |

LawA: | | | | | | |

 Lawrie--------------| 86 |Very limited | |Very limited | |Very limited |

 | | Flooding |1.00 | Flooding |1.00 | Flooding |1.00

 | | Shrink-swell |0.50 | Shrink-swell |0.50 | Shrink-swell |0.50
268 Soil Survey

Building Site Development, Part I—Continued

________________________________________________________________________________________________________

 |Pct.| Dwellings without | Dwellings with | Small commercial

 Map symbol | of | basements | basements | buildings _____________________________________________________________________________

 and soil name |map | Rating class and |Value| Rating class and |Value| Rating class and |Value

 |unit| limiting features | | limiting features | | limiting features | ________________________________________________________________________________________________________

 | | | | | | |

LerA: | | | | | | |

 Lebron--------------| 80 |Very limited | |Very limited | |Very limited |

 | | Flooding |1.00 | Flooding |1.00 | Flooding |1.00

 | | Depth to |1.00 | Depth to |1.00 | Depth to |1.00

 | | saturated zone | | saturated zone | | saturated zone |

 | | Ponding |1.00 | Ponding |1.00 | Ponding |1.00

 | | Shrink-swell |0.50 | | | Shrink-swell |0.50

 | | | | | | |

LitB, LitC2: | | | | | | |

 Littleaxe-----------| 80 |Not limited | |Not limited | |Not limited |

 | | | | | | |

M-W: | | | | | | |

 Miscellaneous water-|100 |Not rated | |Not rated | |Not rated |

 | | | | | | |

MaID: | | | | | | |

 Masham--------------| 52 |Somewhat limited | |Very limited | |Very limited |

 | | Depth to soft |1.00 | Depth to soft |1.00 | Depth to soft |1.00

 | | bedrock | | bedrock | | bedrock |

 | | Slope |0.37 | Slope |0.37 | Slope |1.00

 | | | | | | |

 Ironmound-----------| 27 |Somewhat limited | |Very limited | |Very limited |

 | | Depth to soft |1.00 | Depth to soft |1.00 | Depth to soft |1.00

 | | bedrock | | bedrock | | bedrock |

 | | Slope |0.16 | Slope |0.16 | Slope |1.00

 | | | | | | |

MaIG: | | | | | | |

 Masham--------------| 73 |Very limited | |Very limited | |Very limited |

 | | Slope |1.00 | Slope |1.00 | Slope |1.00

 | | Depth to soft |1.00 | Depth to soft |1.00 | Depth to soft |1.00

 | | bedrock | | bedrock | | bedrock |

 | | | | | | |

 Ironmound-----------| 17 |Very limited | |Very limited | |Very limited |

 | | Slope |1.00 | Slope |1.00 | Slope |1.00

 | | Depth to soft |1.00 | Depth to soft |1.00 | Depth to soft |1.00

 | | bedrock | | bedrock | | bedrock |

 | | | | | | |

MinB, MinC: | | | | | | |

 Minco---------------| 91 |Not limited | |Not limited | |Not limited |

 | | | | | | |

MinD: | | | | | | |

 Minco---------------| 91 |Not limited | |Not limited | |Somewhat limited |

 | | | | | | Slope |0.88

 | | | | | | |

MinF: | | | | | | |

 Minco---------------| 91 |Very limited | |Very limited | |Very limited |

 | | Slope |1.00 | Slope |1.00 | Slope |1.00

 | | | | | | |

MllA: | | | | | | |

 Miller--------------| 95 |Very limited | |Very limited | |Very limited |

 | | Flooding |1.00 | Flooding |1.00 | Flooding |1.00

 | | Shrink-swell |1.00 | Shrink-swell |1.00 | Shrink-swell |1.00

 | | | | | | |

MulC, MulC2: | | | | | | |

 Mulhall-------------| 88 |Not limited | |Not limited | |Not limited |

 | | | | | | |

NavA, NavB: | | | | | | |

 Navina--------------| 96 |Not limited | |Not limited | |Not limited |

 | | | | | | |
Logan County, Oklahoma 269

Building Site Development, Part I—Continued

________________________________________________________________________________________________________

 |Pct.| Dwellings without | Dwellings with | Small commercial

 Map symbol | of | basements | basements | buildings _____________________________________________________________________________

 and soil name |map | Rating class and |Value| Rating class and |Value| Rating class and |Value

 |unit| limiting features | | limiting features | | limiting features | ________________________________________________________________________________________________________

 | | | | | | |

NeGD4: | | | | | | |

 Newalla-------------| 75 |Very limited | |Very limited | |Very limited |

 | | Shrink-swell |1.00 | Shrink-swell |1.00 | Shrink-swell |1.00

 | | | | | | Slope |0.12

 | | | | | | |

 Gullied land--------| 15 |Not rated | |Not rated | |Not rated |

 | | | | | | |

NewB: | | | | | | |

 Newalla-------------| 90 |Very limited | |Very limited | |Very limited |

 | | Shrink-swell |1.00 | Shrink-swell |1.00 | Shrink-swell |1.00

 | | | | | | |

NorA: | | | | | | |

 Norge---------------| 93 |Somewhat limited | |Somewhat limited | |Somewhat limited |

 | | Shrink-swell |0.50 | Shrink-swell |0.50 | Shrink-swell |0.50

 | | | | | | |

NorB: | | | | | | |

 Norge---------------| 90 |Somewhat limited | |Somewhat limited | |Somewhat limited |

 | | Shrink-swell |0.50 | Shrink-swell |0.50 | Shrink-swell |0.50

 | | | | | | |

NorC2: | | | | | | |

 Norge---------------| 88 |Somewhat limited | |Somewhat limited | |Somewhat limited |

 | | Shrink-swell |0.50 | Shrink-swell |0.50 | Shrink-swell |0.50

 | | | | | | |

OWHD: | | | | | | |

 Oil waste land------| 50 |Not rated | |Not rated | |Not rated |

 | | | | | | |

 Huska---------------| 30 |Very limited | |Very limited | |Very limited |

 | | Shrink-swell |1.00 | Shrink-swell |1.00 | Shrink-swell |1.00

 | | | | | | |

PieB: | | | | | | |

 Piedmont------------| 92 |Very limited | |Very limited | |Very limited |

 | | Shrink-swell |1.00 | Shrink-swell |1.00 | Shrink-swell |1.00

 | | | | Depth to soft |0.29 | |

 | | | | bedrock | | |

 | | | | | | |

PieC2: | | | | | | |

 Piedmont------------| 93 |Very limited | |Very limited | |Very limited |

 | | Shrink-swell |1.00 | Shrink-swell |1.00 | Shrink-swell |1.00

 | | | | Depth to soft |0.71 | |

 | | | | bedrock | | |

 | | | | | | |

PIT: | | | | | | |

 Pits----------------|100 |Not rated | |Not rated | |Not rated |

 | | | | | | |

PukA, PulA: | | | | | | |

 Pulaski-------------| 85 |Very limited | |Very limited | |Very limited |

 | | Flooding |1.00 | Flooding |1.00 | Flooding |1.00

 | | | | | | |

RenB, RenC: | | | | | | |

 Renfrow-------------| 89 |Very limited | |Very limited | |Very limited |

 | | Shrink-swell |1.00 | Shrink-swell |1.00 | Shrink-swell |1.00

 | | | | | | |

RewC2: | | | | | | |

 Renfrow-------------| 84 |Very limited | |Very limited | |Very limited |

 | | Shrink-swell |1.00 | Shrink-swell |1.00 | Shrink-swell |1.00

 | | | | | | |

RinB: | | | | | | |

 Renthin-------------| 81 |Very limited | |Very limited | |Very limited |

 | | Shrink-swell |1.00 | Shrink-swell |1.00 | Shrink-swell |1.00

 | | | | | | |
270 Soil Survey

Building Site Development, Part I—Continued

________________________________________________________________________________________________________

 |Pct.| Dwellings without | Dwellings with | Small commercial

 Map symbol | of | basements | basements | buildings _____________________________________________________________________________

 and soil name |map | Rating class and |Value| Rating class and |Value| Rating class and |Value

 |unit| limiting features | | limiting features | | limiting features | ________________________________________________________________________________________________________

 | | | | | | |

RnnC2: | | | | | | |

 Renthin-------------| 80 |Very limited | |Very limited | |Very limited |

 | | Shrink-swell |1.00 | Shrink-swell |1.00 | Shrink-swell |1.00

 | | | | | | |

SDGD4: | | | | | | |

 Stephenville--------| 32 |Not limited | |Somewhat limited | |Somewhat limited |

 | | | | Depth to soft |0.97 | Slope |0.88

 | | | | bedrock | | |

 | | | | | | |

 Darsil--------------| 31 |Somewhat limited | |Very limited | |Somewhat limited |

 | | Depth to soft |1.00 | Depth to soft |1.00 | Depth to soft |1.00

 | | bedrock | | bedrock | | bedrock |

 | | | | | | Slope |0.88

 | | | | | | |

 Gullied land--------| 23 |Not rated | |Not rated | |Not rated |

 | | | | | | |

SDND: | | | | | | |

 Stephenville--------| 44 |Not limited | |Somewhat limited | |Somewhat limited |

 | | | | Depth to soft |0.64 | Slope |0.88

 | | | | bedrock | | |

 | | | | | | |

 Darsil--------------| 29 |Somewhat limited | |Very limited | |Somewhat limited |

 | | Depth to soft |1.00 | Depth to soft |1.00 | Depth to soft |1.00

 | | bedrock | | bedrock | | bedrock |

 | | | | | | Slope |0.88

 | | | | | | |

 Newalla-------------| 21 |Very limited | |Not limited | |Very limited |

 | | Shrink-swell |1.00 | | | Shrink-swell |1.00

 | | | | | | Slope |0.88

 | | | | | | |

SDND2: | | | | | | |

 Stephenville--------| 44 |Not limited | |Somewhat limited | |Somewhat limited |

 | | | | Depth to soft |0.46 | Slope |0.88

 | | | | bedrock | | |

 | | | | | | |

 Darsil--------------| 33 |Somewhat limited | |Very limited | |Somewhat limited |

 | | Depth to soft |1.00 | Depth to soft |1.00 | Depth to soft |1.00

 | | bedrock | | bedrock | | bedrock |

 | | | | | | Slope |0.88

 | | | | | | |

 Newalla-------------| 20 |Very limited | |Not limited | |Very limited |

 | | Shrink-swell |1.00 | | | Shrink-swell |1.00

 | | | | | | Slope |0.88

 | | | | | | |

SlaB: | | | | | | |

 Slaughterville------| 95 |Not limited | |Not limited | |Not limited |

 | | | | | | |

SlaD: | | | | | | |

 Slaughterville------| 95 |Not limited | |Not limited | |Somewhat limited |

 | | | | | | Slope |0.88

 | | | | | | |

SlaF: | | | | | | |

 Slaughterville------| 95 |Somewhat limited | |Somewhat limited | |Very limited |

 | | Slope |0.96 | Slope |0.96 | Slope |1.00

 | | | | | | |

StDC: | | | | | | |

 Stephenville--------| 55 |Not limited | |Somewhat limited | |Not limited |

 | | | | Depth to soft |0.46 | |

 | | | | bedrock | | |

 | | | | | | |
Logan County, Oklahoma 271

Building Site Development, Part I—Continued

________________________________________________________________________________________________________

 |Pct.| Dwellings without | Dwellings with | Small commercial

 Map symbol | of | basements | basements | buildings _____________________________________________________________________________

 and soil name |map | Rating class and |Value| Rating class and |Value| Rating class and |Value

 |unit| limiting features | | limiting features | | limiting features | ________________________________________________________________________________________________________

 | | | | | | |

StDC: | | | | | | |

 Darsil--------------| 30 |Somewhat limited | |Very limited | |Somewhat limited |

 | | Depth to soft |1.00 | Depth to soft |1.00 | Depth to soft |1.00

 | | bedrock | | bedrock | | bedrock |

 | | | | | | |

StDC2: | | | | | | |

 Stephenville--------| 55 |Not limited | |Somewhat limited | |Not limited |

 | | | | Depth to soft |0.01 | |

 | | | | bedrock | | |

 | | | | | | |

 Darsil--------------| 30 |Somewhat limited | |Very limited | |Somewhat limited |

 | | Depth to soft |1.00 | Depth to soft |1.00 | Depth to soft |1.00

 | | bedrock | | bedrock | | bedrock |

 | | | | | | |

StDE: | | | | | | |

 Stephenville--------| 50 |Somewhat limited | |Somewhat limited | |Very limited |

 | | Slope |0.96 | Slope |0.96 | Slope |1.00

 | | | | Depth to soft |0.71 | |

 | | | | bedrock | | |

 | | | | | | |

 Darsil--------------| 40 |Somewhat limited | |Very limited | |Somewhat limited |

 | | Depth to soft |1.00 | Depth to soft |1.00 | Depth to soft |1.00

 | | bedrock | | bedrock | | bedrock |

 | | | | | | Slope |0.88

 | | | | | | |

SteB: | | | | | | |

 Stephenville--------| 94 |Not limited | |Somewhat limited | |Not limited |

 | | | | Depth to soft |0.10 | |

 | | | | bedrock | | |

 | | | | | | |

SteC2: | | | | | | |

 Stephenville--------| 92 |Not limited | |Somewhat limited | |Not limited |

 | | | | Depth to soft |0.54 | |

 | | | | bedrock | | |

 | | | | | | |

SUND: | | | | | | |

 Stephenville--------| 35 |Not limited | |Somewhat limited | |Somewhat limited |

 | | | | Depth to soft |0.64 | Slope |0.88

 | | | | bedrock | | |

 | | | | | | |

 Urban land----------| 30 |Not rated | |Not rated | |Not rated |

 | | | | | | |

 Newalla-------------| 15 |Very limited | |Very limited | |Very limited |

 | | Shrink-swell |1.00 | Shrink-swell |1.00 | Shrink-swell |1.00

 | | | | | | Slope |0.88

 | | | | | | |

TelB, TelC2: | | | | | | |

 Teller--------------| 96 |Not limited | |Not limited | |Not limited |

 | | | | | | |

TriA: | | | | | | |

 Tribbey-------------| 90 |Very limited | |Very limited | |Very limited |

 | | Flooding |1.00 | Flooding |1.00 | Flooding |1.00

 | | Depth to |0.39 | Depth to |1.00 | Depth to |0.39

 | | saturated zone | | saturated zone | | saturated zone |

 | | | | | | |

URB: | | | | | | |

 Urban land----------|100 |Not rated | |Not rated | |Not rated |

 | | | | | | |

W: | | | | | | |

 Water---------------|100 |Not rated | |Not rated | |Not rated |

 | | | | | | |
272 Soil Survey

Building Site Development, Part I—Continued

________________________________________________________________________________________________________

 |Pct.| Dwellings without | Dwellings with | Small commercial

 Map symbol | of | basements | basements | buildings _____________________________________________________________________________

 and soil name |map | Rating class and |Value| Rating class and |Value| Rating class and |Value

 |unit| limiting features | | limiting features | | limiting features | ________________________________________________________________________________________________________

 | | | | | | |

YaaA, YahA: | | | | | | |

 Yahola--------------| 87 |Very limited | |Very limited | |Very limited |

 | | Flooding |1.00 | Flooding |1.00 | Flooding |1.00

 | | | | | | |

ZaHC: | | | | | | |

 Zaneis--------------| 55 |Not limited | |Not limited | |Not limited |

 | | | | | | |

 Huska---------------| 25 |Very limited | |Very limited | |Very limited |

 | | Shrink-swell |1.00 | Shrink-swell |1.00 | Shrink-swell |1.00

 | | | | | | |

ZanB: | | | | | | |

 Zaneis--------------| 87 |Somewhat limited | |Somewhat limited | |Somewhat limited |

 | | Shrink-swell |0.50 | Shrink-swell |0.50 | Shrink-swell |0.50

 | | | | | | |

ZanC: | | | | | | |

 Zaneis--------------| 87 |Not limited | |Somewhat limited | |Not limited |

 | | | | Shrink-swell |0.50 | |

 | | | | | | |

ZanC2: | | | | | | |

 Zaneis--------------| 87 |Somewhat limited | |Somewhat limited | |Somewhat limited |

 | | Shrink-swell |0.50 | Shrink-swell |0.50 | Shrink-swell |0.50

 | | | | | | | ________________________________________________________________________________________________________
Logan County, Oklahoma 273

Building Site Development, Part II

(The information in this table indicates the dominant soil condition but does not eliminate the need

 for onsite investigation. The numbers in the value columns range from 0.01 to 1.00. The larger

 the value, the greater the limitation. See text for further explanation of ratings in this table)

________________________________________________________________________________________________________

 | | | |

 Map symbol |Pct.| Local roads and | Shallow excavations | Lawns and landscaping

 and soil name | of | streets | | _____________________________________________________________________________

 |map | Rating class and |Value| Rating class and |Value| Rating class and |Value

 |unit| limiting features | | limiting features | | limiting features | ________________________________________________________________________________________________________

 | | | | | | |

AspA: | | | | | | |

 Ashport-------------| 95 |Very limited | |Somewhat limited | |Somewhat limited |

 | | Flooding |1.00 | Flooding |0.60 | Flooding |0.60

 | | Low strength |1.00 | Cutbanks cave |0.10 | |

 | | Shrink-swell |0.50 | | | |

 | | | | | | |

AstA: | | | | | | |

 Ashport-------------| 90 |Very limited | |Somewhat limited | |Very limited |

 | | Flooding |1.00 | Flooding |0.80 | Flooding |1.00

 | | Low strength |1.00 | Cutbanks cave |0.10 | |

 | | Shrink-swell |0.50 | | | |

 | | | | | | |

BetA: | | | | | | |

 Bethany-------------| 93 |Very limited | |Somewhat limited | |Not limited |

 | | Low strength |1.00 | Cutbanks cave |0.10 | |

 | | Shrink-swell |1.00 | Too clayey |0.03 | |

 | | | | | | |

BetB: | | | | | | |

 Bethany-------------| 93 |Very limited | |Somewhat limited | |Not limited |

 | | Low strength |1.00 | Cutbanks cave |0.10 | |

 | | Shrink-swell |0.50 | Too clayey |0.03 | |

 | | | | | | |

BocA: | | | | | | |

 Bocox---------------| 94 |Very limited | |Very limited | |Very limited |

 | | Depth to |1.00 | Depth to |1.00 | Depth to |1.00

 | | saturated zone | | saturated zone | | saturated zone |

 | | Ponding |1.00 | Cutbanks cave |1.00 | Ponding |1.00

 | | | | Ponding |1.00 | Droughty |0.01

 | | | | | | |

BtlA: | | | | | | |

 Bathel--------------| 94 |Very limited | |Very limited | |Very limited |

 | | Ponding |1.00 | Ponding |1.00 | Ponding |1.00

 | | Shrink-swell |0.50 | Depth to |0.99 | |

 | | | | saturated zone | | |

 | | | | Cutbanks cave |0.10 | |

 | | | | | | |

CaaA: | | | | | | |

 Canadian------------| 94 |Somewhat limited | |Somewhat limited | |Not limited |

 | | Flooding |0.40 | Cutbanks cave |0.10 | |

 | | | | | | |

CAID: | | | | | | |

 Coyle---------------| 31 |Not limited | |Somewhat limited | |Somewhat limited |

 | | | | Depth to dense |0.50 | Depth to bedrock |0.06

 | | | | layer | | |

 | | | | Cutbanks cave |0.10 | |

 | | | | Depth to soft |0.06 | |

 | | | | bedrock | | |

 | | | | | | |

 Ashport-------------| 28 |Very limited | |Very limited | |Very limited |

 | | Flooding |1.00 | Cutbanks cave |1.00 | Flooding |1.00

 | | Low strength |1.00 | Flooding |0.80 | |

 | | Shrink-swell |0.50 | | | |

 | | | | | | |
274 Soil Survey

Building Site Development, Part II—Continued

________________________________________________________________________________________________________

 | | | |

 Map symbol |Pct.| Local roads and | Shallow excavations | Lawns and landscaping

 and soil name | of | streets | | _____________________________________________________________________________

 |map | Rating class and |Value| Rating class and |Value| Rating class and |Value

 |unit| limiting features | | limiting features | | limiting features | ________________________________________________________________________________________________________

 | | | | | | |

CAID: | | | | | | |

 Ironmound-----------| 22 |Somewhat limited | |Very limited | |Very limited |

 | | Depth to soft |1.00 | Depth to soft |1.00 | Depth to bedrock |1.00

 | | bedrock | | bedrock | | Droughty |0.46

 | | | | Depth to dense |0.50 | |

 | | | | layer | | |

 | | | | Cutbanks cave |0.10 | |

 | | | | | | |

CoIC2: | | | | | | |

 Coyle---------------| 61 |Not limited | |Somewhat limited | |Somewhat limited |

 | | | | Depth to dense |0.50 | Depth to bedrock |0.03

 | | | | layer | | |

 | | | | Cutbanks cave |0.10 | |

 | | | | Depth to soft |0.03 | |

 | | | | bedrock | | |

 | | | | | | |

 Ironmound-----------| 33 |Somewhat limited | |Very limited | |Very limited |

 | | Depth to soft |1.00 | Depth to soft |1.00 | Depth to bedrock |1.00

 | | bedrock | | bedrock | | Droughty |0.65

 | | | | Depth to dense |0.50 | |

 | | | | layer | | |

 | | | | Cutbanks cave |0.10 | |

 | | | | | | |

CoUB: | | | | | | |

 Coyle---------------| 55 |Not limited | |Somewhat limited | |Somewhat limited |

 | | | | Depth to soft |0.97 | Depth to bedrock |0.97

 | | | | bedrock | | Droughty |0.04

 | | | | Dense layer |0.50 | |

 | | | | Cutbanks cave |0.10 | |

 | | | | | | |

 Urban land----------| 40 |Not rated | |Not rated | |Not rated |

 | | | | | | |

CoUC: | | | | | | |

 Coyle---------------| 42 |Not limited | |Somewhat limited | |Somewhat limited |

 | | | | Depth to soft |0.54 | Depth to bedrock |0.54

 | | | | bedrock | | |

 | | | | Depth to dense |0.50 | |

 | | | | layer | | |

 | | | | Cutbanks cave |0.10 | |

 | | | | | | |

 Urban land----------| 38 |Not rated | |Not rated | |Not rated |

 | | | | | | |

CoyB: | | | | | | |

 Coyle---------------| 91 |Not limited | |Somewhat limited | |Somewhat limited |

 | | | | Depth to dense |0.50 | Depth to bedrock |0.35

 | | | | layer | | |

 | | | | Depth to soft |0.35 | |

 | | | | bedrock | | |

 | | | | Cutbanks cave |0.10 | |

 | | | | | | |

CoyC2: | | | | | | |

 Coyle---------------| 91 |Not limited | |Somewhat limited | |Somewhat limited |

 | | | | Depth to soft |0.71 | Depth to bedrock |0.71

 | | | | bedrock | | |

 | | | | Depth to dense |0.50 | |

 | | | | layer | | |

 | | | | Cutbanks cave |0.10 | |

 | | | | | | |
Logan County, Oklahoma 275

Building Site Development, Part II—Continued

________________________________________________________________________________________________________

 | | | |

 Map symbol |Pct.| Local roads and | Shallow excavations | Lawns and landscaping

 and soil name | of | streets | | _____________________________________________________________________________

 |map | Rating class and |Value| Rating class and |Value| Rating class and |Value

 |unit| limiting features | | limiting features | | limiting features | ________________________________________________________________________________________________________

 | | | | | | |

CoZC3: | | | | | | |

 Coyle---------------| 70 |Not limited | |Somewhat limited | |Somewhat limited |

 | | | | Depth to dense |0.50 | Depth to bedrock |0.35

 | | | | layer | | |

 | | | | Depth to soft |0.35 | |

 | | | | bedrock | | |

 | | | | Cutbanks cave |0.10 | |

 | | | | | | |

 Zaneis--------------| 15 |Somewhat limited | |Somewhat limited | |Not limited |

 | | Shrink-swell |0.50 | Cutbanks cave |0.10 | |

 | | | | | | |

DAM: | | | | | | |

 Dam-----------------|100 |Not rated | |Not rated | |Not rated |

 | | | | | | |

DerB: | | | | | | |

 Derby---------------| 90 |Not limited | |Very limited | |Somewhat limited |

 | | | | Cutbanks cave |1.00 | Droughty |0.14

 | | | | | | |

DerD: | | | | | | |

 Derby---------------| 90 |Not limited | |Very limited | |Somewhat limited |

 | | | | Cutbanks cave |1.00 | Droughty |0.27

 | | | | | | |

DerE: | | | | | | |

 Derby---------------| 90 |Somewhat limited | |Very limited | |Somewhat limited |

 | | Slope |0.63 | Cutbanks cave |1.00 | Slope |0.63

 | | | | Slope |0.63 | Droughty |0.25

 | | | | | | |

DiRG: | | | | | | |

 Darsil--------------| 67 |Very limited | |Very limited | |Very limited |

 | | Slope |1.00 | Depth to soft |1.00 | Depth to bedrock |1.00

 | | Depth to soft |1.00 | bedrock | | Slope |1.00

 | | bedrock | | Slope |1.00 | Droughty |1.00

 | | | | Depth to dense |0.50 | |

 | | | | layer | | |

 | | | | Cutbanks cave |0.10 | |

 | | | | | | |

 Rock outcrop--------| 20 |Not rated | |Not rated | |Not rated |

 | | | | | | |

DouB, DouD: | | | | | | |

 Dougherty-----------| 91 |Not limited | |Very limited | |Not limited |

 | | | | Cutbanks cave |1.00 | |

 | | | | | | |

DUM: | | | | | | |

 Dumps---------------|100 |Not rated | |Not rated | |Not rated |

 | | | | | | |

EasA: | | | | | | |

 Easpur--------------| 93 |Very limited | |Somewhat limited | |Somewhat limited |

 | | Flooding |1.00 | Flooding |0.60 | Flooding |0.60

 | | | | Cutbanks cave |0.10 | |

 | | | | | | |

GadA: | | | | | | |

 Gaddy---------------| 85 |Very limited | |Very limited | |Somewhat limited |

 | | Flooding |1.00 | Cutbanks cave |1.00 | Flooding |0.60

 | | | | Flooding |0.60 | Droughty |0.25

 | | | | | | |

GaGA: | | | | | | |

 Gaddy---------------| 67 |Very limited | |Very limited | |Very limited |

 | | Flooding |1.00 | Cutbanks cave |1.00 | Flooding |1.00

 | | | | Flooding |0.80 | Droughty |0.14

 | | | | | | |
276 Soil Survey

Building Site Development, Part II—Continued

________________________________________________________________________________________________________

 | | | |

 Map symbol |Pct.| Local roads and | Shallow excavations | Lawns and landscaping

 and soil name | of | streets | | _____________________________________________________________________________

 |map | Rating class and |Value| Rating class and |Value| Rating class and |Value

 |unit| limiting features | | limiting features | | limiting features | ________________________________________________________________________________________________________

 | | | | | | |

GaGA: | | | | | | |

 Gracemore-----------| 23 |Very limited | |Very limited | |Very limited |

 | | Flooding |1.00 | Depth to |1.00 | Flooding |1.00

 | | Depth to |1.00 | saturated zone |1.00 | Depth to |1.00

 | | saturated zone | | Cutbanks cave |1.00 | saturated zone |

 | | | | Flooding |0.80 | |

 | | | | | | |

GMGE4: | | | | | | |

 Grainola------------| 40 |Very limited | |Very limited | |Somewhat limited |

 | | Low strength |1.00 | Cutbanks cave |1.00 | Slope |0.16

 | | Shrink-swell |1.00 | Depth to dense |0.50 | Content of large |0.05

 | | Slope |0.16 | layer | | stones |

 | | | | Too clayey |0.28 | Depth to bedrock |0.01

 | | | | Slope |0.16 | |

 | | | | Depth to soft |0.01 | |

 | | | | bedrock | | |

 | | | | | | |

 Masham--------------| 30 |Somewhat limited | |Very limited | |Very limited |

 | | Depth to soft |1.00 | Depth to soft |1.00 | Depth to bedrock |1.00

 | | bedrock | | bedrock | | Droughty |0.71

 | | Slope |0.16 | Depth to dense |0.50 | Slope |0.16

 | | | | layer | | |

 | | | | Slope |0.16 | |

 | | | | Cutbanks cave |0.10 | |

 | | | | | | |

 Gullied land--------| 20 |Not rated | |Not rated | |Not rated |

 | | | | | | |

GMLG: | | | | | | |

 Grainola------------| 37 |Very limited | |Very limited | |Very limited |

 | | Shrink-swell |1.00 | Cutbanks cave |1.00 | Slope |1.00

 | | Slope |1.00 | Slope |1.00 | Depth to bedrock |0.46

 | | Low strength |1.00 | Depth to dense |0.50 | Gravel content |0.24

 | | | | layer | | Content of large |0.08

 | | | | Depth to soft |0.46 | stones |

 | | | | bedrock | | |

 | | | | Too clayey |0.28 | |

 | | | | | | |

 Masham--------------| 22 |Very limited | |Very limited | |Very limited |

 | | Slope |1.00 | Depth to soft |1.00 | Depth to bedrock |1.00

 | | Depth to soft |1.00 | bedrock | | Slope |1.00

 | | bedrock | | Slope |1.00 | Droughty |0.97

 | | | | Depth to dense |0.50 | |

 | | | | layer | | |

 | | | | Cutbanks cave |0.10 | |

 | | | | | | |

 Lucien--------------| 21 |Very limited | |Very limited | |Very limited |

 | | Slope |1.00 | Depth to soft |1.00 | Depth to bedrock |1.00

 | | Depth to soft |1.00 | bedrock | | Slope |1.00

 | | bedrock | | Slope |1.00 | Droughty |0.43

 | | | | Depth to dense |0.50 | Content of large |0.03

 | | | | layer | | stones |

 | | | | Cutbanks cave |0.10 | |

 | | | | | | |

GohC: | | | | | | |

 Goodnight-----------| 92 |Not limited | |Very limited | |Somewhat limited |

 | | | | Cutbanks cave |1.00 | Droughty |0.62

 | | | | | | |

GohE: | | | | | | |

 Goodnight-----------| 92 |Somewhat limited | |Very limited | |Somewhat limited |

 | | Slope |0.16 | Cutbanks cave |1.00 | Droughty |0.61

 | | | | Slope |0.16 | Slope |0.16
Logan County, Oklahoma 277

Building Site Development, Part II--Continue=d

________________________________________________________________________________________________________

 | | | |

 Map symbol |Pct.| Local roads and | Shallow excavations | Lawns and landscaping

 and soil name | of | streets | | _____________________________________________________________________________

 |map | Rating class and |Value| Rating class and |Value| Rating class and |Value

 |unit| limiting features | | limiting features | | limiting features | ________________________________________________________________________________________________________

 | | | | | | |

GooE: | | | | | | |

 Goodnight-----------| 92 |Not limited | |Very limited | |Somewhat limited |

 | | | | Cutbanks cave |1.00 | Droughty |0.81

 | | | | | | |

GooG: | | | | | | |

 Goodnight-----------| 92 |Very limited | |Very limited | |Very limited |

 | | Slope |1.00 | Slope |1.00 | Slope |1.00

 | | | | Cutbanks cave |1.00 | Droughty |0.85

 | | | | | | |

GraC: | | | | | | |

 Grainola------------| 88 |Very limited | |Somewhat limited | |Somewhat limited |

 | | Low strength |1.00 | Depth to dense |0.50 | Depth to bedrock |0.29

 | | Shrink-swell |1.00 | layer | | Content of large |0.05

 | | | | Depth to soft |0.29 | stones |

 | | | | bedrock | | |

 | | | | Too clayey |0.28 | |

 | | | | Cutbanks cave |0.10 | |

 | | | | | | |

GraD2: | | | | | | |

 Grainola------------| 89 |Very limited | |Somewhat limited | |Somewhat limited |

 | | Shrink-swell |1.00 | Depth to dense |0.50 | Content of large |0.05

 | | Low strength |1.00 | layer | | stones |

 | | | | Too clayey |0.28 | Depth to bedrock |0.01

 | | | | Cutbanks cave |0.10 | |

 | | | | Depth to soft |0.01 | |

 | | | | bedrock | | |

 | | | | | | |

GrHC: | | | | | | |

 Grant---------------| 45 |Very limited | |Somewhat limited | |Not limited |

 | | Low strength |1.00 | Depth to dense |0.50 | |

 | | | | layer | | |

 | | | | Cutbanks cave |0.10 | |

 | | | | | | |

 Huska---------------| 35 |Very limited | |Somewhat limited | |Very limited |

 | | Low strength |1.00 | Depth to dense |0.50 | Sodium content |1.00

 | | Shrink-swell |1.00 | layer | | Droughty |0.08

 | | | | Too clayey |0.28 | Salinity |0.01

 | | | | Cutbanks cave |0.10 | |

 | | | | | | |

GrIE: | | | | | | |

 Grainola------------| 71 |Very limited | |Somewhat limited | |Somewhat limited |

 | | Low strength |1.00 | Dense layer |0.50 | Content of large |0.05

 | | Shrink-swell |1.00 | Too clayey |0.28 | stones |

 | | | | Cutbanks cave |0.10 | Depth to bedrock |0.01

 | | | | Depth to soft |0.01 | |

 | | | | bedrock | | |

 | | | | | | |

 Ironmound-----------| 20 |Somewhat limited | |Very limited | |Very limited |

 | | Depth to soft |1.00 | Depth to soft |1.00 | Depth to bedrock |1.00

 | | bedrock | | bedrock | | Droughty |0.74

 | | | | Dense layer |0.50 | |

 | | | | Cutbanks cave |0.10 | |

 | | | | | | |
278 Soil Survey

Building Site Development, Part II—Continued

________________________________________________________________________________________________________

 | | | |

 Map symbol |Pct.| Local roads and | Shallow excavations | Lawns and landscaping

 and soil name | of | streets | | _____________________________________________________________________________

 |map | Rating class and |Value| Rating class and |Value| Rating class and |Value

 |unit| limiting features | | limiting features | | limiting features | ________________________________________________________________________________________________________

 | | | | | | |

GrLE: | | | | | | |

 Grainola------------| 55 |Very limited | |Somewhat limited | |Somewhat limited |

 | | Shrink-swell |1.00 | Depth to soft |0.74 | Depth to bedrock |0.74

 | | Low strength |1.00 | bedrock | | Content of large |0.05

 | | Slope |0.04 | Depth to dense |0.50 | stones |

 | | | | layer | | Slope |0.04

 | | | | Too clayey |0.28 | |

 | | | | Cutbanks cave |0.10 | |

 | | | | Slope |0.04 | |

 | | | | | | |

 Lucien--------------| 26 |Somewhat limited | |Very limited | |Very limited |

 | | Depth to soft |1.00 | Depth to soft |1.00 | Depth to bedrock |1.00

 | | bedrock | | bedrock | | Droughty |0.99

 | | Slope |0.04 | Depth to dense |0.50 | Slope |0.04

 | | | | layer | | Content of large |0.03

 | | | | Cutbanks cave |0.10 | stones |

 | | | | Slope |0.04 | |

 | | | | | | |

HaGD4: | | | | | | |

 Harrah--------------| 70 |Not limited | |Somewhat limited | |Not limited |

 | | | | Cutbanks cave |0.10 | |

 | | | | | | |

 Gullied land--------| 15 |Not rated | |Not rated | |Not rated |

 | | | | | | |

HarC, HarC2: | | | | | | |

 Harrah--------------| 91 |Not limited | |Somewhat limited | |Not limited |

 | | | | Cutbanks cave |0.10 | |

 | | | | | | |

HarG: | | | | | | |

 Harrah--------------| 86 |Very limited | |Very limited | |Very limited |

 | | Slope |1.00 | Slope |1.00 | Slope |1.00

 | | | | Cutbanks cave |0.10 | |

 | | | | | | |

HawB: | | | | | | |

 Hawley--------------| 94 |Somewhat limited | |Very limited | |Not limited |

 | | Flooding |0.40 | Cutbanks cave |1.00 | |

 | | | | | | |

ICGD3: | | | | | | |

 Ironmound-----------| 40 |Somewhat limited | |Very limited | |Very limited |

 | | Depth to soft |1.00 | Depth to soft |1.00 | Depth to bedrock |1.00

 | | bedrock | | bedrock | | Droughty |1.00

 | | | | Depth to dense |0.50 | |

 | | | | layer | | |

 | | | | Cutbanks cave |0.10 | |

 | | | | | | |

 Coyle---------------| 30 |Not limited | |Somewhat limited | |Somewhat limited |

 | | | | Depth to dense |0.50 | Depth to bedrock |0.10

 | | | | layer | | |

 | | | | Cutbanks cave |0.10 | |

 | | | | Depth to soft |0.10 | |

 | | | | bedrock | | |

 | | | | | | |

 Grainola------------| 15 |Very limited | |Somewhat limited | |Somewhat limited |

 | | Shrink-swell |1.00 | Depth to dense |0.50 | Depth to bedrock |0.16

 | | Low strength |1.00 | layer | | Content of large |0.05

 | | | | Too clayey |0.28 | stones |

 | | | | Depth to soft |0.15 | |

 | | | | bedrock | | |

 | | | | Cutbanks cave |0.10 | |

 | | | | | | |
Logan County, Oklahoma 279

Building Site Development, Part II—Continued

________________________________________________________________________________________________________

 | | | |

 Map symbol |Pct.| Local roads and | Shallow excavations | Lawns and landscaping

 and soil name | of | streets | | _____________________________________________________________________________

 |map | Rating class and |Value| Rating class and |Value| Rating class and |Value

 |unit| limiting features | | limiting features | | limiting features | ________________________________________________________________________________________________________

 | | | | | | |

IrCE: | | | | | | |

 Ironmound-----------| 53 |Somewhat limited | |Very limited | |Very limited |

 | | Depth to soft |1.00 | Depth to soft |1.00 | Depth to bedrock |1.00

 | | bedrock | | bedrock | | Droughty |0.97

 | | Slope |0.16 | Depth to dense |0.50 | Slope |0.16

 | | | | layer | | |

 | | | | Slope |0.16 | |

 | | | | Cutbanks cave |0.10 | |

 | | | | | | |

 Coyle---------------| 22 |Somewhat limited | |Somewhat limited | |Somewhat limited |

 | | Slope |0.16 | Depth to soft |0.79 | Depth to bedrock |0.80

 | | | | bedrock | | Slope |0.16

 | | | | Depth to dense |0.50 | |

 | | | | layer | | |

 | | | | Slope |0.16 | |

 | | | | Cutbanks cave |0.10 | |

 | | | | | | |

IroC2: | | | | | | |

 Ironmound-----------| 90 |Somewhat limited | |Very limited | |Very limited |

 | | Depth to soft |1.00 | Depth to soft |1.00 | Depth to bedrock |1.00

 | | bedrock | | bedrock | | Droughty |0.71

 | | | | Depth to dense |0.50 | |

 | | | | layer | | |

 | | | | Cutbanks cave |0.10 | |

 | | | | | | |

KgfB: | | | | | | |

 Kingfisher----------| 90 |Very limited | |Somewhat limited | |Somewhat limited |

 | | Low strength |1.00 | Depth to dense |0.50 | Depth to bedrock |0.01

 | | Shrink-swell |0.50 | layer | | |

 | | | | Cutbanks cave |0.10 | |

 | | | | Depth to soft |0.01 | |

 | | | | bedrock | | |

 | | | | | | |

KinC2: | | | | | | |

 Kingfisher----------| 90 |Not limited | |Somewhat limited | |Somewhat limited |

 | | | | Depth to soft |0.71 | Depth to bedrock |0.71

 | | | | bedrock | | |

 | | | | Depth to dense |0.50 | |

 | | | | layer | | |

 | | | | Cutbanks cave |0.10 | |

 | | | | | | |

KonB: | | | | | | |

 Konawa--------------| 96 |Not limited | |Very limited | |Not limited |

 | | | | Cutbanks cave |1.00 | |

 | | | | | | |

KonD2: | | | | | | |

 Konawa--------------| 96 |Not limited | |Somewhat limited | |Not limited |

 | | | | Cutbanks cave |0.10 | |

 | | | | | | |

KrdA, KrkB: | | | | | | |

 Kirkland------------| 90 |Very limited | |Somewhat limited | |Not limited |

 | | Low strength |1.00 | Too clayey |0.50 | |

 | | Shrink-swell |1.00 | Cutbanks cave |0.10 | |

 | | | | | | |

LarA: | | | | | | |

 Lawrie--------------| 94 |Very limited | |Somewhat limited | |Somewhat limited |

 | | Flooding |1.00 | Flooding |0.60 | Flooding |0.60

 | | Low strength |1.00 | Cutbanks cave |0.10 | |

 | | Shrink-swell |0.50 | | | |

 | | | | | | |
280 Soil Survey

Building Site Development, Part II—Continued

________________________________________________________________________________________________________

 | | | |

 Map symbol |Pct.| Local roads and | Shallow excavations | Lawns and landscaping

 and soil name | of | streets | | _____________________________________________________________________________

 |map | Rating class and |Value| Rating class and |Value| Rating class and |Value

 |unit| limiting features | | limiting features | | limiting features | ________________________________________________________________________________________________________

 | | | | | | |

LawA: | | | | | | |

 Lawrie--------------| 86 |Very limited | |Somewhat limited | |Not limited |

 | | Low strength |1.00 | Cutbanks cave |0.10 | |

 | | Shrink-swell |0.50 | | | |

 | | Flooding |0.40 | | | |

 | | | | | | |

LerA: | | | | | | |

 Lebron--------------| 80 |Very limited | |Very limited | |Very limited |

 | | Depth to |1.00 | Depth to |1.00 | Depth to |1.00

 | | saturated zone | | saturated zone | | saturated zone |

 | | Flooding |1.00 | Cutbanks cave |1.00 | Too clayey |1.00

 | | Ponding |1.00 | Ponding |1.00 | Ponding |1.00

 | | Shrink-swell |0.50 | Flooding |0.60 | Flooding |0.60

 | | | | | | |

LitB, LitC2: | | | | | | |

 Littleaxe-----------| 80 |Not limited | |Somewhat limited | |Not limited |

 | | | | Depth to dense |0.50 | |

 | | | | layer | | |

 | | | | Cutbanks cave |0.10 | |

 | | | | | | |

M-W: | | | | | | |

 Miscellaneous water-|100 |Not rated | |Not rated | |Not rated |

 | | | | | | |

MaID: | | | | | | |

 Masham--------------| 52 |Somewhat limited | |Very limited | |Very limited |

 | | Depth to soft |1.00 | Depth to soft |1.00 | Depth to bedrock |1.00

 | | bedrock | | bedrock | | Droughty |0.73

 | | Slope |0.37 | Depth to dense |0.50 | Slope |0.37

 | | | | layer | | |

 | | | | Slope |0.37 | |

 | | | | Cutbanks cave |0.10 | |

 | | | | | | |

 Ironmound-----------| 27 |Somewhat limited | |Very limited | |Very limited |

 | | Depth to soft |1.00 | Depth to soft |1.00 | Depth to bedrock |1.00

 | | bedrock | | bedrock | | Droughty |1.00

 | | Slope |0.16 | Depth to dense |0.50 | Slope |0.16

 | | | | layer | | |

 | | | | Slope |0.16 | |

 | | | | Cutbanks cave |0.10 | |

 | | | | | | |

MaIG: | | | | | | |

 Masham--------------| 73 |Very limited | |Very limited | |Very limited |

 | | Slope |1.00 | Depth to soft |1.00 | Depth to bedrock |1.00

 | | Depth to soft |1.00 | bedrock | | Slope |1.00

 | | bedrock | | Slope |1.00 | Droughty |1.00

 | | | | Depth to dense |0.50 | |

 | | | | layer | | |

 | | | | Cutbanks cave |0.10 | |

 | | | | | | |

 Ironmound-----------| 17 |Very limited | |Very limited | |Very limited |

 | | Slope |1.00 | Depth to soft |1.00 | Depth to bedrock |1.00

 | | Depth to soft |1.00 | bedrock | | Slope |1.00

 | | bedrock | | Slope |1.00 | Droughty |0.85

 | | | | Depth to dense |0.50 | |

 | | | | layer | | |

 | | | | Cutbanks cave |0.10 | |

 | | | | | | |

MinB, MinC, MinD: | | | | | | |

 Minco---------------| 91 |Not limited | |Somewhat limited | |Not limited |

 | | | | Cutbanks cave |0.10 | |

 | | | | | | |
Logan County, Oklahoma 281

Building Site Development, Part II—Continued

________________________________________________________________________________________________________

 | | | |

 Map symbol |Pct.| Local roads and | Shallow excavations | Lawns and landscaping

 and soil name | of | streets | | _____________________________________________________________________________

 |map | Rating class and |Value| Rating class and |Value| Rating class and |Value

 |unit| limiting features | | limiting features | | limiting features | ________________________________________________________________________________________________________

 | | | | | | |

MinF: | | | | | | |

 Minco---------------| 91 |Very limited | |Very limited | |Very limited |

 | | Slope |1.00 | Slope |1.00 | Slope |1.00

 | | | | Cutbanks cave |0.10 | |

 | | | | | | |

MllA: | | | | | | |

 Miller--------------| 95 |Very limited | |Somewhat limited | |Very limited |

 | | Flooding |1.00 | Flooding |0.60 | Too clayey |1.00

 | | Low strength |1.00 | Too clayey |0.28 | Flooding |0.60

 | | Shrink-swell |1.00 | Cutbanks cave |0.10 | |

 | | | | | | |

MulC, MulC2: | | | | | | |

 Mulhall-------------| 88 |Not limited | |Somewhat limited | |Not limited |

 | | | | Cutbanks cave |0.10 | |

 | | | | | | |

NavA, NavB: | | | | | | |

 Navina--------------| 96 |Not limited | |Somewhat limited | |Not limited |

 | | | | Cutbanks cave |0.10 | |

 | | | | | | |

NeGD4: | | | | | | |

 Newalla-------------| 75 |Very limited | |Somewhat limited | |Not limited |

 | | Low strength |1.00 | Too clayey |0.50 | |

 | | Shrink-swell |1.00 | Depth to dense |0.50 | |

 | | | | layer | | |

 | | | | Cutbanks cave |0.10 | |

 | | | | | | |

 Gullied land--------| 15 |Not rated | |Not rated | |Not rated |

 | | | | | | |

NewB: | | | | | | |

 Newalla-------------| 90 |Very limited | |Somewhat limited | |Not limited |

 | | Low strength |1.00 | Too clayey |0.50 | |

 | | Shrink-swell |1.00 | Depth to dense |0.50 | |

 | | | | layer | | |

 | | | | Cutbanks cave |0.10 | |

 | | | | | | |

NorA: | | | | | | |

 Norge---------------| 93 |Very limited | |Somewhat limited | |Not limited |

 | | Low strength |1.00 | Cutbanks cave |0.10 | |

 | | Shrink-swell |0.50 | | | |

 | | | | | | |

NorB: | | | | | | |

 Norge---------------| 90 |Very limited | |Somewhat limited | |Not limited |

 | | Low strength |1.00 | Cutbanks cave |0.10 | |

 | | Shrink-swell |0.50 | | | |

 | | | | | | |

NorC2: | | | | | | |

 Norge---------------| 88 |Very limited | |Somewhat limited | |Not limited |

 | | Low strength |1.00 | Cutbanks cave |0.10 | |

 | | Shrink-swell |0.50 | | | |

 | | | | | | |

OWHD: | | | | | | |

 Oil waste land------| 50 |Not rated | |Not rated | |Not rated |

 | | | | | | |

 Huska---------------| 30 |Very limited | |Somewhat limited | |Very limited |

 | | Low strength |1.00 | Too clayey |0.28 | Sodium content |1.00

 | | Shrink-swell |1.00 | Cutbanks cave |0.10 | Droughty |0.04

 | | | | | | Salinity |0.01

 | | | | | | |
282 Soil Survey

Building Site Development, Part II—Continued

________________________________________________________________________________________________________

 | | | |

 Map symbol |Pct.| Local roads and | Shallow excavations | Lawns and landscaping

 and soil name | of | streets | | _____________________________________________________________________________

 |map | Rating class and |Value| Rating class and |Value| Rating class and |Value

 |unit| limiting features | | limiting features | | limiting features | ________________________________________________________________________________________________________

 | | | | | | |

PieB: | | | | | | |

 Piedmont------------| 92 |Very limited | |Somewhat limited | |Somewhat limited |

 | | Low strength |1.00 | Depth to dense |0.50 | Depth to bedrock |0.29

 | | Shrink-swell |1.00 | layer | | |

 | | | | Depth to soft |0.29 | |

 | | | | bedrock | | |

 | | | | Too clayey |0.12 | |

 | | | | Cutbanks cave |0.10 | |

 | | | | | | |

PieC2: | | | | | | |

 Piedmont------------| 93 |Very limited | |Somewhat limited | |Somewhat limited |

 | | Shrink-swell |1.00 | Depth to soft |0.71 | Depth to bedrock |0.71

 | | Low strength |1.00 | bedrock | | |

 | | | | Depth to dense |0.50 | |

 | | | | layer | | |

 | | | | Too clayey |0.12 | |

 | | | | Cutbanks cave |0.10 | |

 | | | | | | |

PIT: | | | | | | |

 Pits----------------|100 |Not rated | |Not rated | |Not rated |

 | | | | | | |

PukA: | | | | | | |

 Pulaski-------------| 85 |Very limited | |Very limited | |Very limited |

 | | Flooding |1.00 | Cutbanks cave |1.00 | Flooding |1.00

 | | | | Flooding |0.80 | |

 | | | | | | |

PulA: | | | | | | |

 Pulaski-------------| 85 |Very limited | |Very limited | |Somewhat limited |

 | | Flooding |1.00 | Cutbanks cave |1.00 | Flooding |0.60

 | | | | Flooding |0.60 | |

 | | | | | | |

RenB, RenC: | | | | | | |

 Renfrow-------------| 89 |Very limited | |Somewhat limited | |Not limited |

 | | Low strength |1.00 | Too clayey |0.12 | |

 | | Shrink-swell |1.00 | Cutbanks cave |0.10 | |

 | | | | | | |

RewC2: | | | | | | |

 Renfrow-------------| 84 |Very limited | |Somewhat limited | |Not limited |

 | | Low strength |1.00 | Too clayey |0.12 | |

 | | Shrink-swell |1.00 | Cutbanks cave |0.10 | |

 | | | | | | |

RinB: | | | | | | |

 Renthin-------------| 81 |Very limited | |Somewhat limited | |Not limited |

 | | Shrink-swell |1.00 | Depth to dense |0.50 | |

 | | Low strength |1.00 | layer | | |

 | | | | Too clayey |0.12 | |

 | | | | Cutbanks cave |0.10 | |

 | | | | | | |

RnnC2: | | | | | | |

 Renthin-------------| 80 |Very limited | |Very limited | |Not limited |

 | | Low strength |1.00 | Cutbanks cave |1.00 | |

 | | Shrink-swell |1.00 | Depth to dense |0.50 | |

 | | | | layer | | |

 | | | | Too clayey |0.12 | |

 | | | | | | |
Logan County, Oklahoma 283

Building Site Development, Part II—Continued

________________________________________________________________________________________________________

 | | | |

 Map symbol |Pct.| Local roads and | Shallow excavations | Lawns and landscaping

 and soil name | of | streets | | _____________________________________________________________________________

 |map | Rating class and |Value| Rating class and |Value| Rating class and |Value

 |unit| limiting features | | limiting features | | limiting features | ________________________________________________________________________________________________________

 | | | | | | |

SDGD4: | | | | | | |

 Stephenville--------| 32 |Not limited | |Somewhat limited | |Somewhat limited |

 | | | | Depth to soft |0.97 | Depth to bedrock |0.97

 | | | | bedrock | | Droughty |0.10

 | | | | Depth to dense |0.50 | Content of large |0.03

 | | | | layer | | stones |

 | | | | Cutbanks cave |0.10 | |

 | | | | | | |

 Darsil--------------| 31 |Somewhat limited | |Very limited | |Very limited |

 | | Depth to soft |1.00 | Depth to soft |1.00 | Depth to bedrock |1.00

 | | bedrock | | bedrock | | Droughty |1.00

 | | | | Depth to dense |0.50 | |

 | | | | layer | | |

 | | | | Cutbanks cave |0.10 | |

 | | | | | | |

 Gullied land--------| 23 |Not rated | |Not rated | |Not rated |

 | | | | | | |

SDND: | | | | | | |

 Stephenville--------| 44 |Not limited | |Somewhat limited | |Somewhat limited |

 | | | | Depth to soft |0.64 | Depth to bedrock |0.65

 | | | | bedrock | | Content of large |0.03

 | | | | Depth to dense |0.50 | stones |

 | | | | layer | | |

 | | | | Cutbanks cave |0.10 | |

 | | | | | | |

 Darsil--------------| 29 |Somewhat limited | |Very limited | |Very limited |

 | | Depth to soft |1.00 | Depth to soft |1.00 | Depth to bedrock |1.00

 | | bedrock | | bedrock | | Droughty |1.00

 | | | | Depth to dense |0.50 | |

 | | | | layer | | |

 | | | | Cutbanks cave |0.10 | |

 | | | | | | |

 Newalla-------------| 21 |Very limited | |Somewhat limited | |Not limited |

 | | Low strength |1.00 | Too clayey |0.50 | |

 | | Shrink-swell |1.00 | Depth to dense |0.50 | |

 | | | | layer | | |

 | | | | Cutbanks cave |0.10 | |

 | | | | | | |

SDND2: | | | | | | |

 Stephenville--------| 44 |Not limited | |Somewhat limited | |Somewhat limited |

 | | | | Depth to dense |0.50 | Depth to bedrock |0.46

 | | | | layer | | Content of large |0.03

 | | | | Depth to soft |0.46 | stones |

 | | | | bedrock | | |

 | | | | Cutbanks cave |0.10 | |

 | | | | | | |

 Darsil--------------| 33 |Somewhat limited | |Very limited | |Very limited |

 | | Depth to soft |1.00 | Depth to soft |1.00 | Depth to bedrock |1.00

 | | bedrock | | bedrock | | Droughty |1.00

 | | | | Depth to dense |0.50 | |

 | | | | layer | | |

 | | | | Cutbanks cave |0.10 | |

 | | | | | | |

 Newalla-------------| 20 |Very limited | |Somewhat limited | |Not limited |

 | | Low strength |1.00 | Too clayey |0.50 | |

 | | Shrink-swell |1.00 | Depth to dense |0.50 | |

 | | | | layer | | |

 | | | | Cutbanks cave |0.10 | |

 | | | | | | |
284 Soil Survey

Building Site Development, Part II—Continued

________________________________________________________________________________________________________

 | | | |

 Map symbol |Pct.| Local roads and | Shallow excavations | Lawns and landscaping

 and soil name | of | streets | | _____________________________________________________________________________

 |map | Rating class and |Value| Rating class and |Value| Rating class and |Value

 |unit| limiting features | | limiting features | | limiting features | ________________________________________________________________________________________________________

 | | | | | | |

SlaB, SlaD: | | | | | | |

 Slaughterville------| 95 |Not limited | |Very limited | |Not limited |

 | | | | Cutbanks cave |1.00 | |

 | | | | | | |

SlaF: | | | | | | |

 Slaughterville------| 95 |Somewhat limited | |Very limited | |Somewhat limited |

 | | Slope |0.96 | Cutbanks cave |1.00 | Slope |0.96

 | | | | Slope |0.96 | |

 | | | | | | |

StDC: | | | | | | |

 Stephenville--------| 55 |Not limited | |Somewhat limited | |Somewhat limited |

 | | | | Depth to dense |0.50 | Depth to bedrock |0.46

 | | | | layer | | Content of large |0.03

 | | | | Depth to soft |0.46 | stones |

 | | | | bedrock | | |

 | | | | Cutbanks cave |0.10 | |

 | | | | | | |

 Darsil--------------| 30 |Somewhat limited | |Very limited | |Very limited |

 | | Depth to soft |1.00 | Depth to soft |1.00 | Depth to bedrock |1.00

 | | bedrock | | bedrock | | Droughty |1.00

 | | | | Depth to dense |0.50 | |

 | | | | layer | | |

 | | | | Cutbanks cave |0.10 | |

 | | | | | | |

StDC2: | | | | | | |

 Stephenville--------| 55 |Not limited | |Somewhat limited | |Somewhat limited |

 | | | | Depth to dense |0.50 | Content of large |0.03

 | | | | layer | | stones |

 | | | | Cutbanks cave |0.10 | Depth to bedrock |0.01

 | | | | Depth to soft |0.01 | |

 | | | | bedrock | | |

 | | | | | | |

 Darsil--------------| 30 |Somewhat limited | |Very limited | |Very limited |

 | | Depth to soft |1.00 | Depth to soft |1.00 | Depth to bedrock |1.00

 | | bedrock | | bedrock | | Droughty |1.00

 | | | | Depth to dense |0.50 | |

 | | | | layer | | |

 | | | | Cutbanks cave |0.10 | |

 | | | | | | |

StDE: | | | | | | |

 Stephenville--------| 50 |Somewhat limited | |Somewhat limited | |Somewhat limited |

 | | Slope |0.96 | Slope |0.96 | Slope |0.96

 | | | | Depth to soft |0.71 | Depth to bedrock |0.71

 | | | | bedrock | | Content of large |0.03

 | | | | Depth to dense |0.50 | stones |

 | | | | layer | | |

 | | | | Cutbanks cave |0.10 | |

 | | | | | | |

 Darsil--------------| 40 |Somewhat limited | |Very limited | |Very limited |

 | | Depth to soft |1.00 | Depth to soft |1.00 | Depth to bedrock |1.00

 | | bedrock | | bedrock | | Droughty |1.00

 | | | | Depth to dense |0.50 | |

 | | | | layer | | |

 | | | | Cutbanks cave |0.10 | |

 | | | | | | |
Logan County, Oklahoma 285

Building Site Development, Part II—Continued

________________________________________________________________________________________________________

 | | | |

 Map symbol |Pct.| Local roads and | Shallow excavations | Lawns and landscaping

 and soil name | of | streets | | _____________________________________________________________________________

 |map | Rating class and |Value| Rating class and |Value| Rating class and |Value

 |unit| limiting features | | limiting features | | limiting features | ________________________________________________________________________________________________________

 | | | | | | |

SteB: | | | | | | |

 Stephenville--------| 94 |Not limited | |Somewhat limited | |Somewhat limited |

 | | | | Depth to dense |0.50 | Depth to bedrock |0.10

 | | | | layer | | Content of large |0.03

 | | | | Cutbanks cave |0.10 | stones |

 | | | | Depth to soft |0.10 | |

 | | | | bedrock | | |

 | | | | | | |

SteC2: | | | | | | |

 Stephenville--------| 92 |Not limited | |Somewhat limited | |Somewhat limited |

 | | | | Depth to soft |0.54 | Depth to bedrock |0.54

 | | | | bedrock | | Content of large |0.03

 | | | | Depth to dense |0.50 | stones |

 | | | | layer | | |

 | | | | Cutbanks cave |0.10 | |

 | | | | | | |

SUND: | | | | | | |

 Stephenville--------| 35 |Not limited | |Somewhat limited | |Somewhat limited |

 | | | | Depth to soft |0.64 | Depth to bedrock |0.65

 | | | | bedrock | | Content of large |0.03

 | | | | Depth to dense |0.50 | stones |

 | | | | layer | | |

 | | | | Cutbanks cave |0.10 | |

 | | | | | | |

 Urban land----------| 30 |Not rated | |Not rated | |Not rated |

 | | | | | | |

 Newalla-------------| 15 |Very limited | |Somewhat limited | |Not limited |

 | | Low strength |1.00 | Too clayey |0.50 | |

 | | Shrink-swell |1.00 | Depth to dense |0.50 | |

 | | | | layer | | |

 | | | | | | |

TelB, TelC2: | | | | | | |

 Teller--------------| 96 |Not limited | |Somewhat limited | |Not limited |

 | | | | Cutbanks cave |0.10 | |

 | | | | | | |

TriA: | | | | | | |

 Tribbey-------------| 90 |Very limited | |Very limited | |Very limited |

 | | Flooding |1.00 | Depth to |1.00 | Flooding |1.00

 | | Depth to |0.19 | saturated zone | | Depth to |0.19

 | | saturated zone | | Cutbanks cave |1.00 | saturated zone |

 | | | | Flooding |0.80 | |

 | | | | | | |

URB: | | | | | | |

 Urban land----------|100 |Not rated | |Not rated | |Not rated |

 | | | | | | |

W: | | | | | | |

 Water---------------|100 |Not rated | |Not rated | |Not rated |

 | | | | | | |

YaaA, YahA: | | | | | | |

 Yahola--------------| 87 |Very limited | |Very limited | |Somewhat limited |

 | | Flooding |1.00 | Cutbanks cave |1.00 | Flooding |0.60

 | | | | Flooding |0.60 | |

 | | | | | | |

ZaHC: | | | | | | |

 Zaneis--------------| 55 |Not limited | |Somewhat limited | |Not limited |

 | | | | Depth to dense |0.50 | |

 | | | | layer | | |

 | | | | Cutbanks cave |0.10 | |

 | | | | | | |
286 Soil Survey

Building Site Development, Part II—Continued

________________________________________________________________________________________________________

 | | | |

 Map symbol |Pct.| Local roads and | Shallow excavations | Lawns and landscaping

 and soil name | of | streets | | _____________________________________________________________________________

 |map | Rating class and |Value| Rating class and |Value| Rating class and |Value

 |unit| limiting features | | limiting features | | limiting features | ________________________________________________________________________________________________________

 | | | | | | |

ZaHC: | | | | | | |

 Huska---------------| 25 |Very limited | |Somewhat limited | |Very limited |

 | | Low strength |1.00 | Cutbanks cave |0.10 | Sodium content |1.00

 | | Shrink-swell |1.00 | | | Droughty |0.11

 | | | | | | Salinity |0.01

 | | | | | | |

ZanB: | | | | | | |

 Zaneis--------------| 87 |Somewhat limited | |Somewhat limited | |Not limited |

 | | Shrink-swell |0.50 | Depth to dense |0.50 | |

 | | | | layer | | |

 | | | | Cutbanks cave |0.10 | |

 | | | | | | |

ZanC: | | | | | | |

 Zaneis--------------| 87 |Not limited | |Somewhat limited | |Not limited |

 | | | | Depth to dense |0.50 | |

 | | | | layer | | |

 | | | | Cutbanks cave |0.10 | |

 | | | | | | |

ZanC2: | | | | | | |

 Zaneis--------------| 87 |Somewhat limited | |Somewhat limited | |Not limited |

 | | Shrink-swell |0.50 | Depth to dense |0.50 | |

 | | | | layer | | |

 | | | | Cutbanks cave |0.10 | |

 | | | | | | | ________________________________________________________________________________________________________
Logan County, Oklahoma 287

Construction Materials

The tables “Construction Materials, Part I” and “Construction Materials, Part II” give

information about the soils as potential sources of gravel, sand, topsoil, reclamation

material, and roadfill. Normal compaction, minor processing, and other standard

construction practices are assumed.

Sand and gravel are natural aggregates suitable for commercial use with a

minimum of processing. They are used in many kinds of construction. Specifications

for each use vary widely. In the table “Construction Materials, Part I,” only the likelihood

of finding material in suitable quantity is evaluated. The suitability of the material for

specific purposes is not evaluated, nor are factors that affect excavation of the

material. The properties used to evaluate the soil as a source of sand or gravel are

gradation of grain sizes (as indicated by the Unified classification of the soil), the

thickness of suitable material, and the content of rock fragments. If the bottom layer of

the soil contains sand or gravel, the soil is considered a likely source regardless of

thickness. The assumption is that the sand or gravel layer below the depth of

observation exceeds the minimum thickness. The soils are rated good, fair, or poor as

potential sources of sand and gravel. A rating of good or fair means that the source

material is likely to be in or below the soil. The bottom layer and the thickest layer of

the soils are assigned numerical ratings. These ratings indicate the likelihood that the

layer is a source of sand or gravel. The number 0.00 indicates that the layer is a poor

source. The number 1.00 indicates that the layer is a good source. A number between

0.00 and 1.00 indicates the degree to which the layer is a likely source.

The soils are rated good, fair, or poor as potential sources of topsoil, reclamation

material, and roadfill. The features that limit the soils as sources of these materials are

specified in the table “Construction Materials, Part II.” The numerical ratings given after

the specified features indicate the degree to which the features limit the soils as

sources of topsoil, reclamation material, or roadfill. The lower the number, the greater

the limitation.

Reclamation material is used in areas that have been drastically disturbed by

surface mining or similar activities. When these areas are reclaimed, layers of soil

material or unconsolidated geological material, or both, are replaced in a vertical

sequence. The reconstructed soil favors plant growth. The ratings in the table do not

apply to quarries and other mined areas that require an offsite source of

reconstruction material. The ratings are based on the soil properties that affect erosion

and stability of the surface and the productive potential of the reconstructed soil. These

properties include the content of sodium, salts, and calcium carbonate; reaction;

available water capacity; erodibility; texture; content of rock fragments; and content of

organic matter and other features that affect fertility.

Roadfill is soil material that is excavated in one place and used in road

embankments in another place. In this table, the soils are rated as a source of roadfill

for low embankments, generally less than 6 feet high and less exacting in design than

higher embankments. The ratings are for the whole soil, from the surface to a depth of

about 5 feet. It is assumed that soil layers will be mixed when the soil material is

excavated and spread. The ratings are based on the amount of suitable material and

on soil properties that affect the ease of excavation and the performance of the

material after it is in place. The thickness of the suitable material is a major

consideration. The ease of excavation is affected by large stones, depth to a water

table, and slope. How well the soil performs in place after it has been compacted and

drained is determined by its strength (as inferred from the AASHTO classification of

the soil) and linear extensibility (shrink-swell potential).

Topsoil is used to cover an area so that vegetation can be established and

maintained. The upper 40 inches of a soil is evaluated for use as topsoil. Also

evaluated is the reclamation potential of the borrow area. The ratings are based on the
288 Soil Survey

soil properties that affect plant growth; the ease of excavating, loading, and spreading

the material; and reclamation of the borrow area. Toxic substances, soil reaction, and

the properties that are inferred from soil texture, such as available water capacity and

fertility, affect plant growth. The ease of excavating, loading, and spreading is affected

by rock fragments, slope, depth to a water table, soil texture, and thickness of suitable

material. Reclamation of the borrow area is affected by slope, depth to a water table,

rock fragments, depth to bedrock or a cemented pan, and toxic material. The surface

layer of most soils is generally preferred for topsoil because of its organic matter

content. Organic matter greatly increases the absorption and retention of moisture and

nutrients for plant growth.
Logan County, Oklahoma 289

Construction Materials, Part I

(The information in this table indicates the dominant soil condition but does

 not eliminate the need for onsite investigation. The ratings given for

 the thickest layer are for the thickest layer above and excluding the

 bottom layer. The numbers in the value columns range from 0.00 to 0.99.

 The greater the value, the greater the likelihood that the bottom layer

 or thickest layer of the soil is a source of sand or gravel. See text

 for further explanation of ratings in this table)

______________________________________________________________________________

 |Pct.| Potential source of | Potential source of

 Map symbol | of | gravel | sand

 and soil name |map | | ___________________________________________________

 |unit| Rating class |Value| Rating class |Value ______________________________________________________________________________

 | | | | |

AspA: | | | | |

 Ashport-------------| 95 |Poor | |Poor |

 | | Bottom layer |0.00 | Bottom layer |0.00

 | | Thickest layer |0.00 | Thickest layer |0.00

 | | | | |

AstA: | | | | |

 Ashport-------------| 90 |Poor | |Poor |

 | | Bottom layer |0.00 | Bottom layer |0.00

 | | Thickest layer |0.00 | Thickest layer |0.00

 | | | | |

BetA, BetB: | | | | |

 Bethany-------------| 93 |Poor | |Poor |

 | | Bottom layer |0.00 | Bottom layer |0.00

 | | Thickest layer |0.00 | Thickest layer |0.00

 | | | | |

BocA: | | | | |

 Bocox---------------| 94 |Poor | |Poor |

 | | Bottom layer |0.00 | Bottom layer |0.00

 | | Thickest layer |0.00 | Thickest layer |0.00

 | | | | |

BtlA: | | | | |

 Bathel--------------| 94 |Poor | |Poor |

 | | Bottom layer |0.00 | Bottom layer |0.00

 | | Thickest layer |0.00 | Thickest layer |0.00

 | | | | |

CaaA: | | | | |

 Canadian------------| 94 |Poor | |Poor |

 | | Bottom layer |0.00 | Bottom layer |0.00

 | | Thickest layer |0.00 | Thickest layer |0.00

 | | | | |

CAID: | | | | |

 Coyle---------------| 31 |Poor | |Poor |

 | | Bottom layer |0.00 | Bottom layer |0.00

 | | Thickest layer |0.00 | Thickest layer |0.00

 | | | | |

 Ashport-------------| 28 |Poor | |Poor |

 | | Bottom layer |0.00 | Bottom layer |0.00

 | | Thickest layer |0.00 | Thickest layer |0.00

 | | | | |

 Ironmound-----------| 22 |Poor | |Poor |

 | | Bottom layer |0.00 | Bottom layer |0.00

 | | Thickest layer |0.00 | Thickest layer |0.00

 | | | | |

CoIC2: | | | | |

 Coyle---------------| 61 |Poor | |Poor |

 | | Bottom layer |0.00 | Bottom layer |0.00

 | | Thickest layer |0.00 | Thickest layer |0.00

 | | | | |

 Ironmound-----------| 33 |Poor | |Poor |

 | | Bottom layer |0.00 | Bottom layer |0.00

 | | Thickest layer |0.00 | Thickest layer |0.00

 | | | | |
290 Soil Survey

Construction Materials, Part I—Continued

______________________________________________________________________________

 |Pct.| Potential source of | Potential source of

 Map symbol | of | gravel | sand

 and soil name |map | | ___________________________________________________

 |unit| Rating class |Value| Rating class |Value ______________________________________________________________________________

 | | | | |

CoUB: | | | | |

 Coyle---------------| 55 |Poor | |Poor |

 | | Bottom layer |0.00 | Bottom layer |0.00

 | | Thickest layer |0.00 | Thickest layer |0.00

 | | | | |

 Urban land----------| 40 |Not rated | |Not rated |

 | | | | |

CoUC: | | | | |

 Coyle---------------| 42 |Poor | |Poor |

 | | Bottom layer |0.00 | Bottom layer |0.00

 | | Thickest layer |0.00 | Thickest layer |0.00

 | | | | |

 Urban land----------| 38 |Not rated | |Not rated |

 | | | | |

CoyB, CoyC2: | | | | |

 Coyle---------------| 91 |Poor | |Poor |

 | | Bottom layer |0.00 | Bottom layer |0.00

 | | Thickest layer |0.00 | Thickest layer |0.00

 | | | | |

CoZC3: | | | | |

 Coyle---------------| 70 |Poor | |Poor |

 | | Bottom layer |0.00 | Bottom layer |0.00

 | | Thickest layer |0.00 | Thickest layer |0.00

 | | | | |

 Zaneis--------------| 15 |Poor | |Poor |

 | | Bottom layer |0.00 | Bottom layer |0.00

 | | Thickest layer |0.00 | Thickest layer |0.00

 | | | | |

DAM: | | | | |

 Dam-----------------|100 |Not rated | |Not rated |

 | | | | |

DerB: | | | | |

 Derby---------------| 90 |Poor | |Fair |

 | | Bottom layer |0.00 | Bottom layer |0.02

 | | Thickest layer |0.00 | Thickest layer |0.02

 | | | | |

DerD: | | | | |

 Derby---------------| 90 |Poor | |Fair |

 | | Bottom layer |0.00 | Bottom layer |0.08

 | | Thickest layer |0.00 | Thickest layer |0.14

 | | | | |

DerE: | | | | |

 Derby---------------| 90 |Poor | |Fair |

 | | Bottom layer |0.00 | Bottom layer |0.02

 | | Thickest layer |0.00 | Thickest layer |0.14

 | | | | |

DiRG: | | | | |

 Darsil--------------| 67 |Poor | |Fair |

 | | Bottom layer |0.00 | Thickest layer |0.01

 | | Thickest layer |0.00 | Bottom layer |0.02

 | | | | |

 Rock outcrop--------| 20 |Not rated | |Not rated |

 | | | | |

DouB: | | | | |

 Dougherty-----------| 91 |Poor | |Fair |

 | | Bottom layer |0.00 | Thickest layer |0.00

 | | Thickest layer |0.00 | Bottom layer |0.06

 | | | | |

DouD: | | | | |

 Dougherty-----------| 91 |Poor | |Fair |

 | | Bottom layer |0.00 | Bottom layer |0.00

 | | Thickest layer |0.00 | Thickest layer |0.05
Logan County, Oklahoma 291

Construction Materials, Part I—Continued

______________________________________________________________________________

 |Pct.| Potential source of | Potential source of

 Map symbol | of | gravel | sand

 and soil name |map | | ___________________________________________________

 |unit| Rating class |Value| Rating class |Value ______________________________________________________________________________

 | | | | |

DUM: | | | | |

 Dumps---------------|100 |Not rated | |Not rated |

 | | | | |

EasA: | | | | |

 Easpur--------------| 93 |Poor | |Poor |

 | | Bottom layer |0.00 | Bottom layer |0.00

 | | Thickest layer |0.00 | Thickest layer |0.00

 | | | | |

GadA: | | | | |

 Gaddy---------------| 85 |Poor | |Poor |

 | | Bottom layer |0.00 | Bottom layer |0.00

 | | Thickest layer |0.00 | Thickest layer |0.00

 | | | | |

GaGA: | | | | |

 Gaddy---------------| 67 |Poor | |Poor |

 | | Bottom layer |0.00 | Bottom layer |0.00

 | | Thickest layer |0.00 | Thickest layer |0.00

 | | | | |

 Gracemore-----------| 23 |Poor | |Fair |

 | | Bottom layer |0.00 | Thickest layer |0.00

 | | Thickest layer |0.00 | Bottom layer |0.13

 | | | | |

GMGE4: | | | | |

 Grainola------------| 40 |Poor | |Poor |

 | | Bottom layer |0.00 | Bottom layer |0.00

 | | Thickest layer |0.00 | Thickest layer |0.00

 | | | | |

 Masham--------------| 30 |Poor | |Poor |

 | | Bottom layer |0.00 | Bottom layer |0.00

 | | Thickest layer |0.00 | Thickest layer |0.00

 | | | | |

 Gullied land--------| 20 |Not rated | |Not rated |

 | | | | |

GMLG: | | | | |

 Grainola------------| 37 |Poor | |Poor |

 | | Thickest layer |0.00 | Bottom layer |0.00

 | | Bottom layer |0.00 | Thickest layer |0.00

 | | | | |

 Masham--------------| 22 |Poor | |Poor |

 | | Bottom layer |0.00 | Bottom layer |0.00

 | | Thickest layer |0.00 | Thickest layer |0.00

 | | | | |

 Lucien--------------| 21 |Poor | |Poor |

 | | Bottom layer |0.00 | Bottom layer |0.00

 | | Thickest layer |0.00 | Thickest layer |0.00

 | | | | |

GohC, GohE, GooE, | | | | |

 GooG: | | | | |

 Goodnight----------| 92 |Poor | |Fair |

 | | Bottom layer |0.00 | Bottom layer |0.12

 | | Thickest layer |0.00 | Thickest layer |0.12

 | | | | |

GraC: | | | | |

 Grainola------------| 88 |Poor | |Poor |

 | | Bottom layer |0.00 | Bottom layer |0.00

 | | Thickest layer |0.00 | Thickest layer |0.00

 | | | | |

GraD2: | | | | |

 Grainola------------| 89 |Poor | |Poor |

 | | Bottom layer |0.00 | Bottom layer |0.00

 | | Thickest layer |0.00 | Thickest layer |0.00

 | | | | |
292 Soil Survey

Construction Materials, Part I—Continued

______________________________________________________________________________

 |Pct.| Potential source of | Potential source of

 Map symbol | of | gravel | sand

 and soil name |map | | ___________________________________________________

 |unit| Rating class |Value| Rating class |Value ______________________________________________________________________________

 | | | | |

GrHC: | | | | |

 Grant---------------| 45 |Poor | |Poor |

 | | Bottom layer |0.00 | Bottom layer |0.00

 | | Thickest layer |0.00 | Thickest layer |0.00

 | | | | |

 Huska---------------| 35 |Poor | |Poor |

 | | Bottom layer |0.00 | Bottom layer |0.00

 | | Thickest layer |0.00 | Thickest layer |0.00

 | | | | |

GrIE: | | | | |

 Grainola------------| 71 |Poor | |Poor |

 | | Bottom layer |0.00 | Bottom layer |0.00

 | | Thickest layer |0.00 | Thickest layer |0.00

 | | | | |

 Ironmound-----------| 20 |Poor | |Poor |

 | | Bottom layer |0.00 | Bottom layer |0.00

 | | Thickest layer |0.00 | Thickest layer |0.00

 | | | | |

GrLE: | | | | |

 Grainola------------| 55 |Poor | |Poor |

 | | Bottom layer |0.00 | Bottom layer |0.00

 | | Thickest layer |0.00 | Thickest layer |0.00

 | | | | |

 Lucien--------------| 26 |Poor | |Poor |

 | | Bottom layer |0.00 | Bottom layer |0.00

 | | Thickest layer |0.00 | Thickest layer |0.00

 | | | | |

HaGD4: | | | | |

 Harrah--------------| 70 |Poor | |Poor |

 | | Bottom layer |0.00 | Bottom layer |0.00

 | | Thickest layer |0.00 | Thickest layer |0.00

 | | | | |

 Gullied land--------| 15 |Not rated | |Not rated |

 | | | | |

HarC, HarC2: | | | | |

 Harrah--------------| 91 |Poor | |Poor |

 | | Bottom layer |0.00 | Bottom layer |0.00

 | | Thickest layer |0.00 | Thickest layer |0.00

 | | | | |

HarG: | | | | |

 Harrah--------------| 86 |Poor | |Poor |

 | | Bottom layer |0.00 | Bottom layer |0.00

 | | Thickest layer |0.00 | Thickest layer |0.00

 | | | | |

HawB: | | | | |

 Hawley--------------| 94 |Poor | |Poor |

 | | Bottom layer |0.00 | Bottom layer |0.00

 | | Thickest layer |0.00 | Thickest layer |0.00

 | | | | |

ICGD3: | | | | |

 Ironmound-----------| 40 |Poor | |Poor |

 | | Bottom layer |0.00 | Bottom layer |0.00

 | | Thickest layer |0.00 | Thickest layer |0.00

 | | | | |

 Coyle---------------| 30 |Poor | |Poor |

 | | Bottom layer |0.00 | Bottom layer |0.00

 | | Thickest layer |0.00 | Thickest layer |0.00

 | | | | |

 Grainola------------| 15 |Poor | |Poor |

 | | Bottom layer |0.00 | Bottom layer |0.00

 | | Thickest layer |0.00 | Thickest layer |0.00

 | | | | |
Logan County, Oklahoma 293

Construction Materials, Part I—Continued

______________________________________________________________________________

 |Pct.| Potential source of | Potential source of

 Map symbol | of | gravel | sand

 and soil name |map | | ___________________________________________________

 |unit| Rating class |Value| Rating class |Value ______________________________________________________________________________

 | | | | |

IrCE: | | | | |

 Ironmound-----------| 53 |Poor | |Poor |

 | | Bottom layer |0.00 | Bottom layer |0.00

 | | Thickest layer |0.00 | Thickest layer |0.00

 | | | | |

 Coyle---------------| 22 |Poor | |Poor |

 | | Bottom layer |0.00 | Bottom layer |0.00

 | | Thickest layer |0.00 | Thickest layer |0.00

 | | | | |

IroC2: | | | | |

 Ironmound-----------| 90 |Poor | |Poor |

 | | Bottom layer |0.00 | Bottom layer |0.00

 | | Thickest layer |0.00 | Thickest layer |0.00

 | | | | |

KgfB: | | | | |

 Kingfisher----------| 90 |Poor | |Poor |

 | | Bottom layer |0.00 | Bottom layer |0.00

 | | Thickest layer |0.00 | Thickest layer |0.00

 | | | | |

KinC2: | | | | |

 Kingfisher----------| 90 |Poor | |Poor |

 | | Bottom layer |0.00 | Bottom layer |0.00

 | | Thickest layer |0.00 | Thickest layer |0.00

 | | | | |

KonB: | | | | |

 Konawa--------------| 96 |Poor | |Fair |

 | | Bottom layer |0.00 | Thickest layer |0.01

 | | Thickest layer |0.00 | Bottom layer |0.06

 | | | | |

KonD2: | | | | |

 Konawa--------------| 96 |Poor | |Poor |

 | | Bottom layer |0.00 | Bottom layer |0.00

 | | Thickest layer |0.00 | Thickest layer |0.00

 | | | | |

KrdA, KrkB: | | | | |

 Kirkland------------| 90 |Poor | |Poor |

 | | Bottom layer |0.00 | Bottom layer |0.00

 | | Thickest layer |0.00 | Thickest layer |0.00

 | | | | |

LarA: | | | | |

 Lawrie--------------| 94 |Poor | |Poor |

 | | Bottom layer |0.00 | Bottom layer |0.00

 | | Thickest layer |0.00 | Thickest layer |0.00

 | | | | |

LawA: | | | | |

 Lawrie--------------| 86 |Poor | |Poor |

 | | Bottom layer |0.00 | Bottom layer |0.00

 | | Thickest layer |0.00 | Thickest layer |0.00

 | | | | |

LerA: | | | | |

 Lebron--------------| 80 |Poor | |Poor |

 | | Bottom layer |0.00 | Bottom layer |0.00

 | | Thickest layer |0.00 | Thickest layer |0.00

 | | | | |

LitB, LitC2: | | | | |

 Littleaxe-----------| 80 |Poor | |Poor |

 | | Bottom layer |0.00 | Bottom layer |0.00

 | | Thickest layer |0.00 | Thickest layer |0.00

 | | | | |

M-W: | | | | |

 Miscellaneous water-|100 |Not rated | |Not rated |

 | | | | |
294 Soil Survey

Construction Materials, Part I—Continued

______________________________________________________________________________

 |Pct.| Potential source of | Potential source of

 Map symbol | of | gravel | sand

 and soil name |map | | ___________________________________________________

 |unit| Rating class |Value| Rating class |Value ______________________________________________________________________________

 | | | | |

MaID: | | | | |

 Masham--------------| 52 |Poor | |Poor |

 | | Bottom layer |0.00 | Bottom layer |0.00

 | | Thickest layer |0.00 | Thickest layer |0.00

 | | | | |

 Ironmound-----------| 27 |Poor | |Poor |

 | | Bottom layer |0.00 | Bottom layer |0.00

 | | Thickest layer |0.00 | Thickest layer |0.00

 | | | | |

MaIG: | | | | |

 Masham--------------| 73 |Poor | |Poor |

 | | Bottom layer |0.00 | Bottom layer |0.00

 | | Thickest layer |0.00 | Thickest layer |0.00

 | | | | |

 Ironmound-----------| 17 |Poor | |Poor |

 | | Bottom layer |0.00 | Bottom layer |0.00

 | | Thickest layer |0.00 | Thickest layer |0.00

 | | | | |

MinB, MinC, MinD, | | | | |

 MinF: | | | | |

 Minco--------------| 91 |Poor | |Poor |

 | | Bottom layer |0.00 | Bottom layer |0.00

 | | Thickest layer |0.00 | Thickest layer |0.00

 | | | | |

MllA: | | | | |

 Miller--------------| 95 |Poor | |Poor |

 | | Bottom layer |0.00 | Bottom layer |0.00

 | | Thickest layer |0.00 | Thickest layer |0.00

 | | | | |

MulC, MulC2: | | | | |

 Mulhall-------------| 88 |Poor | |Poor |

 | | Bottom layer |0.00 | Bottom layer |0.00

 | | Thickest layer |0.00 | Thickest layer |0.00

 | | | | |

NavA, NavB: | | | | |

 Navina--------------| 96 |Poor | |Poor |

 | | Bottom layer |0.00 | Bottom layer |0.00

 | | Thickest layer |0.00 | Thickest layer |0.00

 | | | | |

NeGD4: | | | | |

 Newalla-------------| 75 |Poor | |Poor |

 | | Thickest layer |0.00 | Bottom layer |0.00

 | | Bottom layer |0.00 | Thickest layer |0.00

 | | | | |

 Gullied land--------| 15 |Not rated | |Not rated |

 | | | | |

NewB: | | | | |

 Newalla-------------| 90 |Poor | |Poor |

 | | Thickest layer |0.00 | Bottom layer |0.00

 | | Bottom layer |0.00 | Thickest layer |0.00

 | | | | |

NorA: | | | | |

 Norge---------------| 93 |Poor | |Poor |

 | | Bottom layer |0.00 | Bottom layer |0.00

 | | Thickest layer |0.00 | Thickest layer |0.00

 | | | | |

NorB: | | | | |

 Norge---------------| 90 |Poor | |Poor |

 | | Bottom layer |0.00 | Bottom layer |0.00

 | | Thickest layer |0.00 | Thickest layer |0.00

 | | | | |
Logan County, Oklahoma 295

Construction Materials, Part I—Continued

______________________________________________________________________________

 |Pct.| Potential source of | Potential source of

 Map symbol | of | gravel | sand

 and soil name |map | | ___________________________________________________

 |unit| Rating class |Value| Rating class |Value ______________________________________________________________________________

 | | | | |

NorC2: | | | | |

 Norge---------------| 88 |Poor | |Poor |

 | | Bottom layer |0.00 | Bottom layer |0.00

 | | Thickest layer |0.00 | Thickest layer |0.00

 | | | | |

OWHD: | | | | |

 Oil waste land------| 50 |Not rated | |Not rated |

 | | | | |

 Huska---------------| 30 |Poor | |Poor |

 | | Bottom layer |0.00 | Bottom layer |0.00

 | | Thickest layer |0.00 | Thickest layer |0.00

 | | | | |

PieB: | | | | |

 Piedmont------------| 92 |Poor | |Poor |

 | | Bottom layer |0.00 | Bottom layer |0.00

 | | Thickest layer |0.00 | Thickest layer |0.00

 | | | | |

PieC2: | | | | |

 Piedmont------------| 93 |Poor | |Poor |

 | | Bottom layer |0.00 | Bottom layer |0.00

 | | Thickest layer |0.00 | Thickest layer |0.00

 | | | | |

PIT: | | | | |

 Pits----------------|100 |Not rated | |Not rated |

 | | | | |

PukA, PulA: | | | | |

 Pulaski-------------| 85 |Poor | |Poor |

 | | Bottom layer |0.00 | Bottom layer |0.00

 | | Thickest layer |0.00 | Thickest layer |0.00

 | | | | |

RenB, RenC: | | | | |

 Renfrow-------------| 89 |Poor | |Poor |

 | | Bottom layer |0.00 | Bottom layer |0.00

 | | Thickest layer |0.00 | Thickest layer |0.00

 | | | | |

RewC2: | | | | |

 Renfrow-------------| 84 |Poor | |Poor |

 | | Bottom layer |0.00 | Bottom layer |0.00

 | | Thickest layer |0.00 | Thickest layer |0.00

 | | | | |

RinB: | | | | |

 Renthin-------------| 81 |Poor | |Poor |

 | | Bottom layer |0.00 | Bottom layer |0.00

 | | Thickest layer |0.00 | Thickest layer |0.00

 | | | | |

RnnC2: | | | | |

 Renthin-------------| 80 |Poor | |Poor |

 | | Bottom layer |0.00 | Bottom layer |0.00

 | | Thickest layer |0.00 | Thickest layer |0.00

 | | | | |

SDGD4: | | | | |

 Stephenville--------| 32 |Poor | |Poor |

 | | Bottom layer |0.00 | Bottom layer |0.00

 | | Thickest layer |0.00 | Thickest layer |0.00

 | | | | |

 Darsil--------------| 31 |Poor | |Fair |

 | | Bottom layer |0.00 | Thickest layer |0.00

 | | Thickest layer |0.00 | Bottom layer |0.02

 | | | | |

 Gullied land--------| 23 |Not rated | |Not rated |

 | | | | |
296 Soil Survey

Construction Materials, Part I—Continued

______________________________________________________________________________

 |Pct.| Potential source of | Potential source of

 Map symbol | of | gravel | sand

 and soil name |map | | ___________________________________________________

 |unit| Rating class |Value| Rating class |Value ______________________________________________________________________________

 | | | | |

SDND: | | | | |

 Stephenville--------| 44 |Poor | |Poor |

 | | Bottom layer |0.00 | Bottom layer |0.00

 | | Thickest layer |0.00 | Thickest layer |0.00

 | | | | |

 Darsil--------------| 29 |Poor | |Fair |

 | | Bottom layer |0.00 | Bottom layer |0.02

 | | Thickest layer |0.00 | Thickest layer |0.02

 | | | | |

 Newalla-------------| 21 |Poor | |Poor |

 | | Bottom layer |0.00 | Bottom layer |0.00

 | | Thickest layer |0.00 | Thickest layer |0.00

 | | | | |

SDND2: | | | | |

 Stephenville--------| 44 |Poor | |Poor |

 | | Bottom layer |0.00 | Bottom layer |0.00

 | | Thickest layer |0.00 | Thickest layer |0.00

 | | | | |

 Darsil--------------| 33 |Poor | |Fair |

 | | Bottom layer |0.00 | Thickest layer |0.00

 | | Thickest layer |0.00 | Bottom layer |0.02

 | | | | |

 Newalla-------------| 20 |Poor | |Poor |

 | | Bottom layer |0.00 | Bottom layer |0.00

 | | Thickest layer |0.00 | Thickest layer |0.00

 | | | | |

SlaB: | | | | |

 Slaughterville------| 95 |Poor | |Poor |

 | | Bottom layer |0.00 | Bottom layer |0.00

 | | Thickest layer |0.00 | Thickest layer |0.00

 | | | | |

SlaD, SlaF: | | | | |

 Slaughterville------| 95 |Poor | |Fair |

 | | Bottom layer |0.00 | Thickest layer |0.00

 | | Thickest layer |0.00 | Bottom layer |0.07

 | | | | |

StDC: | | | | |

 Stephenville--------| 55 |Poor | |Poor |

 | | Bottom layer |0.00 | Bottom layer |0.00

 | | Thickest layer |0.00 | Thickest layer |0.00

 | | | | |

 Darsil--------------| 30 |Poor | |Fair |

 | | Bottom layer |0.00 | Thickest layer |0.00

 | | Thickest layer |0.00 | Bottom layer |0.02

 | | | | |

StDC2: | | | | |

 Stephenville--------| 55 |Poor | |Poor |

 | | Bottom layer |0.00 | Bottom layer |0.00

 | | Thickest layer |0.00 | Thickest layer |0.00

 | | | | |

 Darsil--------------| 30 |Poor | |Fair |

 | | Bottom layer |0.00 | Thickest layer |0.00

 | | Thickest layer |0.00 | Bottom layer |0.02

 | | | | |

StDE: | | | | |

 Stephenville--------| 50 |Poor | |Poor |

 | | Bottom layer |0.00 | Bottom layer |0.00

 | | Thickest layer |0.00 | Thickest layer |0.00

 | | | | |

 Darsil--------------| 40 |Poor | |Fair |

 | | Bottom layer |0.00 | Thickest layer |0.00

 | | Thickest layer |0.00 | Bottom layer |0.02
Logan County, Oklahoma 297

Construction Materials, Part I—Continued

______________________________________________________________________________

 |Pct.| Potential source of | Potential source of

 Map symbol | of | gravel | sand

 and soil name |map | | ___________________________________________________

 |unit| Rating class |Value| Rating class |Value ______________________________________________________________________________

 | | | | |

SteB: | | | | |

 Stephenville--------| 94 |Poor | |Poor |

 | | Bottom layer |0.00 | Bottom layer |0.00

 | | Thickest layer |0.00 | Thickest layer |0.00

 | | | | |

SteC2: | | | | |

 Stephenville--------| 92 |Poor | |Poor |

 | | Bottom layer |0.00 | Bottom layer |0.00

 | | Thickest layer |0.00 | Thickest layer |0.00

SUND: | | | | |

 Stephenville--------| 35 |Poor | |Poor |

 | | Bottom layer |0.00 | Bottom layer |0.00

 | | Thickest layer |0.00 | Thickest layer |0.00

 | | | | |

 Urban land----------| 30 |Not rated | |Not rated |

 | | | | |

 Newalla-------------| 15 |Poor | |Poor |

 | | Bottom layer |0.00 | Bottom layer |0.00

 | | Thickest layer |0.00 | Thickest layer |0.00

 | | | | |

TelB, TelC2: | | | | |

 Teller--------------| 96 |Poor | |Poor |

 | | Bottom layer |0.00 | Bottom layer |0.00

 | | Thickest layer |0.00 | Thickest layer |0.00

 | | | | |

TriA: | | | | |

 Tribbey-------------| 90 |Poor | |Fair |

 | | Bottom layer |0.00 | Bottom layer |0.00

 | | Thickest layer |0.00 | Thickest layer |0.01

 | | | | |

URB: | | | | |

 Urban land----------|100 |Not rated | |Not rated |

 | | | | |

W: | | | | |

 Water---------------|100 |Not rated | |Not rated |

 | | | | |

YaaA, YahA: | | | | |

 Yahola--------------| 87 |Poor | |Fair |

 | | Bottom layer |0.00 | Bottom layer |0.00

 | | Thickest layer |0.00 | Thickest layer |0.01

 | | | | |

ZaHC: | | | | |

 Zaneis--------------| 55 |Poor | |Poor |

 | | Bottom layer |0.00 | Bottom layer |0.00

 | | Thickest layer |0.00 | Thickest layer |0.00

 | | | | |

 Huska---------------| 25 |Poor | |Poor |

 | | Bottom layer |0.00 | Bottom layer |0.00

 | | Thickest layer |0.00 | Thickest layer |0.00

 | | | | |

ZanB, ZanC, ZanC2: | | | | |

 Zaneis--------------| 87 |Poor | |Poor |

 | | Bottom layer |0.00 | Bottom layer |0.00

 | | Thickest layer |0.00 | Thickest layer |0.00

 | | | | | ______________________________________________________________________________
298 Soil Survey

Construction Materials, Part II

(The information in this table indicates the dominant soil condition but does not eliminate the need

 for onsite investigation. The numbers in the value columns range from 0.00 to 0.99. The smaller

 the value, the greater the limitation. See text for further explanation of ratings in this table)

________________________________________________________________________________________________________

 |Pct.| Potential source of | Potential source of | Potential source of

 Map symbol | of | reclamation material | roadfill | topsoil _____________________________________________________________________________

 and soil name |map | Rating class and |Value| Rating class and |Value| Rating class and |Value

 |unit| limiting features | | limiting features | | limiting features | ________________________________________________________________________________________________________

 | | | | | | |

AspA: | | | | | | |

 Ashport-------------| 95 |Fair | |Poor | |Good |

 | | Low content of |0.88 | Low strength |0.00 | |

 | | organic matter | | Shrink-swell |0.87 | |

 | | Water erosion |0.99 | | | |

 | | | | | | |

AstA: | | | | | | |

 Ashport-------------| 90 |Fair | |Poor | |Good |

 | | Low content of |0.88 | Low strength |0.00 | |

 | | organic matter | | Shrink-swell |0.89 | |

 | | Water erosion |0.99 | | | |

 | | | | | | |

BetA: | | | | | | |

 Bethany-------------| 93 |Poor | |Poor | |Poor |

 | | Too clayey |0.00 | Low strength |0.00 | Too clayey |0.00

 | | Water erosion |0.90 | Shrink-swell |0.38 | |

 | | | | | | |

BetB: | | | | | | |

 Bethany-------------| 93 |Fair | |Poor | |Fair |

 | | Water erosion |0.90 | Low strength |0.00 | Too clayey |0.93

 | | Too clayey |0.98 | Shrink-swell |0.28 | |

 | | | | | | |

BocA: | | | | | | |

 Bocox---------------| 94 |Poor | |Poor | |Poor |

 | | Wind erosion |0.00 | Depth to |0.00 | Depth to |0.00

 | | Low content of |0.12 | saturated zone | | saturated zone |

 | | organic matter | | | | Too sandy |0.53

 | | Too sandy |0.53 | | | |

 | | | | | | |

BtlA: | | | | | | |

 Bathel--------------| 94 |Poor | |Fair | |Fair |

 | | Wind erosion |0.00 | Depth to |0.98 | Too clayey |0.55

 | | Low content of |0.12 | saturated zone | | Depth to |0.98

 | | organic matter | | | | saturated zone |

 | | Too clayey |0.95 | | | |

 | | Too acid |0.97 | | | |

 | | | | | | |

CaaA: | | | | | | |

 Canadian------------| 94 |Fair | |Good | |Good |

 | | Low content of |0.50 | | | |

 | | organic matter | | | | |

 | | | | | | |

CAID: | | | | | | |

 Coyle---------------| 31 |Fair | |Poor | |Poor |

 | | Low content of |0.12 | Depth to bedrock |0.00 | Hard to reclaim |0.00

 | | organic matter | | | | (dense layer) |

 | | Depth to bedrock |0.93 | | | Rock fragments |0.99

 | | Droughty |0.98 | | | Depth to bedrock |0.93

 | | Water erosion |0.99 | | | |

 | | | | | | |

 Ashport-------------| 28 |Fair | |Poor | |Good |

 | | Low content of |0.88 | Low strength |0.00 | |

 | | organic matter | | Shrink-swell |0.89 | |

 | | Water erosion |0.99 | | | |

 | | | | | | |
Logan County, Oklahoma 299

Construction Materials, Part II—Continued

________________________________________________________________________________________________________

 |Pct.| Potential source of | Potential source of | Potential source of

 Map symbol | of | reclamation material | roadfill | topsoil _____________________________________________________________________________

 and soil name |map | Rating class and |Value| Rating class and |Value| Rating class and |Value

 |unit| limiting features | | limiting features | | limiting features | ________________________________________________________________________________________________________

 | | | | | | |

CAID: | | | | | | |

 Ironmound-----------| 22 |Poor | |Poor | |Poor |

 | | Depth to bedrock |0.00 | Depth to bedrock |0.00 | Hard to reclaim |0.00

 | | Droughty |0.00 | | | (dense layer) |

 | | Low content of |0.12 | | | Depth to bedrock |0.00

 | | organic matter | | | | |

 | | | | | | |

CoIC2: | | | | | | |

 Coyle---------------| 61 |Fair | |Poor | |Fair |

 | | Low content of |0.88 | Depth to bedrock |0.00 | Hard to reclaim |0.20

 | | organic matter | | | | (dense layer) |

 | | Depth to bedrock |0.97 | | | Depth to bedrock |0.97

 | | Water erosion |0.99 | | | |

 | | | | | | |

 Ironmound-----------| 33 |Poor | |Poor | |Poor |

 | | Depth to bedrock |0.00 | Depth to bedrock |0.00 | Hard to reclaim |0.00

 | | Droughty |0.00 | | | (dense layer) |

 | | Low content of |0.12 | | | Depth to bedrock |0.00

 | | organic matter | | | | |

 | | | | | | |

CoUB: | | | | | | |

 Coyle---------------| 55 |Fair | |Poor | |Poor |

 | | Depth to bedrock |0.03 | Depth to bedrock |0.00 | Hard to reclaim |0.00

 | | Droughty |0.12 | | | (dense layer) |

 | | Water erosion |0.99 | | | Depth to bedrock |0.03

 | | | | | | |

 Urban land----------| 40 |Not rated | |Not rated | |Not rated |

 | | | | | | |

CoUC: | | | | | | |

 Coyle---------------| 42 |Fair | |Poor | |Poor |

 | | Depth to bedrock |0.46 | Depth to bedrock |0.00 | Hard to reclaim |0.00

 | | Droughty |0.65 | | | (dense layer) |

 | | Water erosion |0.99 | | | Depth to bedrock |0.46

 | | Low content of |0.88 | | | |

 | | organic matter | | | | |

 | | | | | | |

 Urban land----------| 38 |Not rated | |Not rated | |Not rated |

 | | | | | | |

CoyB: | | | | | | |

 Coyle---------------| 91 |Fair | |Poor | |Poor |

 | | Depth to bedrock |0.65 | Depth to bedrock |0.00 | Hard to reclaim |0.00

 | | Droughty |0.74 | | | (dense layer) |

 | | Low content of |0.88 | | | Depth to bedrock |0.65

 | | organic matter | | | | |

 | | Water erosion |0.99 | | | |

 | | | | | | |

CoyC2: | | | | | | |

 Coyle---------------| 91 |Fair | |Poor | |Poor |

 | | Low content of |0.12 | Depth to bedrock |0.00 | Hard to reclaim |0.00

 | | organic matter | | | | (dense layer) |

 | | Depth to bedrock |0.29 | | | Depth to bedrock |0.29

 | | Droughty |0.40 | | | Rock fragments |0.88

 | | Water erosion |0.99 | | | |

 | | | | | | |

CoZC3: | | | | | | |

 Coyle---------------| 70 |Fair | |Poor | |Poor |

 | | Low content of |0.12 | Depth to bedrock |0.00 | Hard to reclaim |0.00

 | | organic matter | | | | (dense layer) |

 | | Depth to bedrock |0.65 | | | Depth to bedrock |0.65

 | | Droughty |0.74 | | | Rock fragments |0.88

 | | Water erosion |0.99 | | | |

 | | | | | | |
300 Soil Survey

Construction Materials, Part II—Continued

________________________________________________________________________________________________________

 |Pct.| Potential source of | Potential source of | Potential source of

 Map symbol | of | reclamation material | roadfill | topsoil _____________________________________________________________________________

 and soil name |map | Rating class and |Value| Rating class and |Value| Rating class and |Value

 |unit| limiting features | | limiting features | | limiting features | ________________________________________________________________________________________________________

 | | | | | | |

CoZC3: | | | | | | |

 Zaneis--------------| 15 |Fair | |Fair | |Poor |

 | | Low content of |0.88 | Depth to bedrock |0.29 | Hard to reclaim |0.00

 | | organic matter | | Shrink-swell |0.99 | (dense layer) |

 | | Water erosion |0.99 | | | |

 | | | | | | |

DAM: | | | | | | |

 Dam-----------------|100 |Not rated | |Not rated | |Not rated |

 | | | | | | |

DerB: | | | | | | |

 Derby---------------| 90 |Poor | |Good | |Fair |

 | | Wind erosion |0.00 | | | Too sandy |0.36

 | | Low content of |0.12 | | | |

 | | organic matter | | | | |

 | | Too sandy |0.36 | | | |

 | | | | | | |

DerD: | | | | | | |

 Derby---------------| 90 |Poor | |Good | |Poor |

 | | Too sandy |0.00 | | | Too sandy |0.00

 | | Wind erosion |0.00 | | | |

 | | Low content of |0.12 | | | |

 | | organic matter | | | | |

 | | | | | | |

DerE: | | | | | | |

 Derby---------------| 90 |Poor | |Good | |Poor |

 | | Too sandy |0.00 | | | Too sandy |0.00

 | | Wind erosion |0.00 | | | Slope |0.37

 | | Low content of |0.12 | | | |

 | | organic matter | | | | |

 | | | | | | |

DiRG: | | | | | | |

 Darsil--------------| 67 |Poor | |Poor | |Poor |

 | | Wind erosion |0.00 | Depth to bedrock |0.00 | Slope |0.00

 | | Droughty |0.00 | Slope |0.00 | Hard to reclaim |0.00

 | | Depth to bedrock |0.00 | | | Depth to bedrock |0.00

 | | Low content of |0.12 | | | Too sandy |0.41

 | | organic matter | | | | Rock fragments |0.88

 | | Too sandy |0.41 | | | |

 | | | | | | |

 Rock outcrop--------| 20 |Not rated | |Not rated | |Not rated |

 | | | | | | |

DouB: | | | | | | |

 Dougherty-----------| 91 |Poor | |Good | |Good |

 | | Wind erosion |0.00 | | | |

 | | Low content of |0.12 | | | |

 | | organic matter | | | | |

 | | Too acid |0.84 | | | |

 | | | | | | |

DouD: | | | | | | |

 Dougherty-----------| 91 |Poor | |Good | |Poor |

 | | Too sandy |0.00 | | | Too sandy |0.00

 | | Wind erosion |0.00 | | | |

 | | Low content of |0.12 | | | |

 | | organic matter | | | | |

 | | Too acid |0.84 | | | |

 | | | | | | |

DUM: | | | | | | |

 Dumps---------------|100 |Not rated | |Not rated | |Not rated |

 | | | | | | |
Logan County, Oklahoma 301

Construction Materials, Part II—Continued

________________________________________________________________________________________________________

 |Pct.| Potential source of | Potential source of | Potential source of

 Map symbol | of | reclamation material | roadfill | topsoil _____________________________________________________________________________

 and soil name |map | Rating class and |Value| Rating class and |Value| Rating class and |Value

 |unit| limiting features | | limiting features | | limiting features | ________________________________________________________________________________________________________

 | | | | | | |

EasA: | | | | | | |

 Easpur--------------| 93 |Fair | |Good | |Good |

 | | Low content of |0.88 | | | |

 | | organic matter | | | | |

 | | Water erosion |0.99 | | | |

 | | | | | | |

GadA: | | | | | | |

 Gaddy---------------| 85 |Poor | |Good | |Good |

 | | Wind erosion |0.00 | | | |

 | | Low content of |0.88 | | | |

 | | organic matter | | | | |

 | | | | | | |

GaGA: | | | | | | |

 Gaddy---------------| 67 |Fair | |Good | |Good |

 | | Low content of |0.88 | | | |

 | | organic matter | | | | |

 | | | | | | |

 Gracemore-----------| 23 |Poor | |Poor | |Poor |

 | | Too sandy |0.00 | Depth to |0.00 | Too sandy |0.00

 | | Low content of |0.12 | saturated zone | | Depth to |0.00

 | | organic matter | | | | saturated zone |

 | | | | | | |

GMGE4: | | | | | | |

 Grainola------------| 40 |Poor | |Poor | |Poor |

 | | Too clayey |0.00 | Depth to bedrock |0.00 | Hard to reclaim |0.00

 | | Low content of |0.12 | Low strength |0.00 | Too clayey |0.00

 | | organic matter | | Shrink-swell |0.12 | Slope |0.84

 | | Depth to bedrock |0.99 | | | Depth to bedrock |0.99

 | | Water erosion |0.99 | | | |

 | | Droughty |0.99 | | | |

 | | | | | | |

 Masham--------------| 30 |Poor | |Poor | |Poor |

 | | Low content of |0.00 | Depth to bedrock |0.00 | Hard to reclaim |0.00

 | | organic matter | | Low strength |0.00 | (dense layer) |

 | | Depth to bedrock |0.00 | Shrink-swell |0.12 | Depth to bedrock |0.00

 | | Droughty |0.00 | | | Slope |0.84

 | | Low content of |0.12 | | | |

 | | organic matter | | | | |

 | | Water erosion |0.90 | | | |

 | | | | | | |

 Gullied land--------| 20 |Not rated | |Not rated | |Not rated |

 | | | | | | |

GMLG: | | | | | | |

 Grainola------------| 37 |Poor | |Poor | |Poor |

 | | Too clayey |0.00 | Depth to bedrock |0.00 | Rock fragments |0.00

 | | Low content of |0.12 | Low strength |0.00 | Too clayey |0.00

 | | organic matter | | Shrink-swell |0.12 | Slope |0.00

 | | Droughty |0.36 | | | Hard to reclaim |0.10

 | | Depth to bedrock |0.54 | | | (dense layer) |

 | | Water erosion |0.99 | | | Depth to bedrock |0.54

 | | | | | | |

 Masham--------------| 22 |Poor | |Poor | |Poor |

 | | Droughty |0.00 | Depth to bedrock |0.00 | Slope |0.00

 | | Too clayey |0.00 | Slope |0.00 | Hard to reclaim |0.00

 | | Depth to bedrock |0.00 | Low strength |0.00 | (dense layer) |

 | | Low content of |0.12 | Shrink-swell |0.00 | Depth to bedrock |0.00

 | | organic matter | | | | Too clayey |0.00

 | | Water erosion |0.90 | | | |

 | | | | | | |
302 Soil Survey

Construction Materials, Part II—Continued

________________________________________________________________________________________________________

 |Pct.| Potential source of | Potential source of | Potential source of

 Map symbol | of | reclamation material | roadfill | topsoil _____________________________________________________________________________

 and soil name |map | Rating class and |Value| Rating class and |Value| Rating class and |Value

 |unit| limiting features | | limiting features | | limiting features | ________________________________________________________________________________________________________

 | | | | | | |

GMLG: | | | | | | |

 Lucien--------------| 21 |Poor | |Poor | |Poor |

 | | Depth to bedrock |0.00 | Depth to bedrock |0.00 | Slope |0.00

 | | Droughty |0.00 | Slope |0.82 | Hard to reclaim |0.00

 | | | | | | (dense layer) |

 | | | | | | Depth to bedrock |0.00

 | | | | | | Rock fragments |0.88

 | | | | | | |

GohC: | | | | | | |

 Goodnight-----------| 92 |Poor | |Good | |Poor |

 | | Wind erosion |0.00 | | | Too sandy |0.00

 | | Too sandy |0.00 | | | |

 | | Low content of |0.88 | | | |

 | | organic matter | | | | |

 | | Droughty |0.99 | | | |

 | | | | | | |

GohE: | | | | | | |

 Goodnight-----------| 92 |Poor | |Good | |Poor |

 | | Wind erosion |0.00 | | | Too sandy |0.00

 | | Too sandy |0.00 | | | Slope |0.84

 | | Low content of |0.88 | | | |

 | | organic matter | | | | |

 | | Droughty |0.99 | | | |

 | | | | | | |

GooE: | | | | | | |

 Goodnight-----------| 92 |Poor | |Good | |Poor |

 | | Wind erosion |0.00 | | | Too sandy |0.00

 | | Too sandy |0.00 | | | |

 | | Low content of |0.88 | | | |

 | | organic matter | | | | |

 | | Droughty |0.95 | | | |

 | | | | | | |

GooG: | | | | | | |

 Goodnight-----------| 92 |Poor | |Fair | |Poor |

 | | Wind erosion |0.00 | Slope |0.08 | Slope |0.00

 | | Too sandy |0.00 | | | Too sandy |0.00

 | | Low content of |0.88 | | | |

 | | organic matter | | | | |

 | | Droughty |0.93 | | | |

 | | | | | | |

GraC: | | | | | | |

 Grainola------------| 88 |Poor | |Poor | |Poor |

 | | Too clayey |0.00 | Depth to bedrock |0.00 | Hard to reclaim |0.00

 | | Low content of |0.12 | Low strength |0.00 | (dense layer) |

 | | organic matter | | Shrink-swell |0.12 | Too clayey |0.00

 | | Depth to bedrock |0.71 | | | Depth to bedrock |0.71

 | | Droughty |0.86 | | | Rock fragments |0.97

 | | Water erosion |0.99 | | | |

 | | | | | | |

GraD2: | | | | | | |

 Grainola------------| 89 |Poor | |Poor | |Poor |

 | | Too clayey |0.00 | Depth to bedrock |0.00 | Too clayey |0.00

 | | Low content of |0.12 | Low strength |0.00 | Hard to reclaim |0.20

 | | organic matter | | Shrink-swell |0.12 | (dense layer) |

 | | Depth to bedrock |0.99 | | | Rock fragments |0.97

 | | Water erosion |0.99 | | | Depth to bedrock |0.99

 | | | | | | |
Logan County, Oklahoma 303

Construction Materials, Part II—Continued

________________________________________________________________________________________________________

 |Pct.| Potential source of | Potential source of | Potential source of

 Map symbol | of | reclamation material | roadfill | topsoil _____________________________________________________________________________

 and soil name |map | Rating class and |Value| Rating class and |Value| Rating class and |Value

 |unit| limiting features | | limiting features | | limiting features | ________________________________________________________________________________________________________

 | | | | | | |

GrHC: | | | | | | |

 Grant---------------| 45 |Fair | |Poor | |Poor |

 | | Low content of |0.88 | Low strength |0.00 | Hard to reclaim |0.00

 | | organic matter | | Depth to bedrock |0.87 | (dense layer) |

 | | Water erosion |0.99 | | | |

 | | | | | | |

 Huska---------------| 35 |Poor | |Poor | |Poor |

 | | Sodium content |0.00 | Low strength |0.00 | Hard to reclaim |0.00

 | | Too clayey |0.00 | Shrink-swell |0.12 | (dense layer) |

 | | Droughty |0.49 | Depth to bedrock |0.58 | Sodium content |0.00

 | | Low content of |0.50 | | | Too clayey |0.00

 | | organic matter | | | | Salinity |0.00

 | | Water erosion |0.68 | | | |

 | | Salinity |0.97 | | | |

 | | | | | | |

GrIE: | | | | | | |

 Grainola------------| 71 |Poor | |Poor | |Poor |

 | | Too clayey |0.00 | Depth to bedrock |0.00 | Hard to reclaim |0.00

 | | Low content of |0.12 | Low strength |0.00 | (dense layer) |

 | | organic matter | | Shrink-swell |0.12 | Too clayey |0.00

 | | Depth to bedrock |0.99 | | | Depth to bedrock |0.99

 | | Water erosion |0.99 | | | |

 | | | | | | |

 Ironmound-----------| 20 |Poor | |Poor | |Poor |

 | | Depth to bedrock |0.00 | Depth to bedrock |0.00 | Hard to reclaim |0.00

 | | Droughty |0.00 | | | (dense layer) |

 | | Low content of |0.12 | | | Depth to bedrock |0.00

 | | organic matter | | | | |

 | | | | | | |

GrLE: | | | | | | |

 Grainola------------| 55 |Poor | |Poor | |Poor |

 | | Too clayey |0.00 | Depth to bedrock |0.00 | Too clayey |0.00

 | | Low content of |0.12 | Low strength |0.00 | Hard to reclaim |0.00

 | | organic matter | | Shrink-swell |0.12 | (dense layer) |

 | | Depth to bedrock |0.26 | | | Depth to bedrock |0.26

 | | Droughty |0.48 | | | Slope |0.96

 | | Water erosion |0.99 | | | Rock fragments |0.97

 | | | | | | |

 Lucien--------------| 26 |Poor | |Poor | |Poor |

 | | Droughty |0.00 | Depth to bedrock |0.00 | Hard to reclaim |0.00

 | | Depth to bedrock |0.00 | | | (dense layer) |

 | | | | | | Depth to bedrock |0.00

 | | | | | | Rock fragments |0.95

 | | | | | | Slope |0.96

 | | | | | | |

HaGD4: | | | | | | |

 Harrah--------------| 70 |Fair | |Good | |Good |

 | | Low content of |0.50 | | | |

 | | organic matter | | | | |

 | | Too acid |0.88 | | | |

 | | | | | | |

 Gullied land--------| 15 |Not rated | |Not rated | |Not rated |

 | | | | | | |

HarC, HarC2: | | | | | | |

 Harrah--------------| 91 |Fair | |Good | |Good |

 | | Low content of |0.50 | | | |

 | | organic matter | | | | |

 | | Too acid |0.88 | | | |

 | | | | | | |
304 Soil Survey

Construction Materials, Part II—Continued

________________________________________________________________________________________________________

 |Pct.| Potential source of | Potential source of | Potential source of

 Map symbol | of | reclamation material | roadfill | topsoil _____________________________________________________________________________

 and soil name |map | Rating class and |Value| Rating class and |Value| Rating class and |Value

 |unit| limiting features | | limiting features | | limiting features | ________________________________________________________________________________________________________

 | | | | | | |

HarG: | | | | | | |

 Harrah--------------| 86 |Fair | |Fair | |Poor |

 | | Low content of |0.50 | Slope |0.02 | Slope |0.00

 | | organic matter | | | | |

 | | Too acid |0.88 | | | |

 | | | | | | |

HawB: | | | | | | |

 Hawley--------------| 94 |Poor | |Good | |Good |

 | | Wind erosion |0.00 | | | |

 | | Low content of |0.12 | | | |

 | | organic matter | | | | |

 | | | | | | |

ICGD3: | | | | | | |

 Ironmound-----------| 40 |Poor | |Poor | |Poor |

 | | Droughty |0.00 | Depth to bedrock |0.00 | Hard to reclaim |0.00

 | | Depth to bedrock |0.00 | | | (dense layer) |

 | | Low content of |0.12 | | | Depth to bedrock |0.00

 | | organic matter | | | | |

 | | | | | | |

 Coyle---------------| 30 |Fair | |Poor | |Fair |

 | | Low content of |0.12 | Depth to bedrock |0.00 | Hard to reclaim |0.01

 | | organic matter | | | | (dense layer) |

 | | Depth to bedrock |0.90 | | | Rock fragments |0.88

 | | Droughty |0.96 | | | Depth to bedrock |0.90

 | | Water erosion |0.99 | | | |

 | | | | | | |

 Grainola------------| 15 |Poor | |Poor | |Poor |

 | | Too clayey |0.00 | Depth to bedrock |0.00 | Too clayey |0.00

 | | Low content of |0.12 | Low strength |0.00 | Hard to reclaim |0.03

 | | organic matter | | Shrink-swell |0.12 | (dense layer) |

 | | Droughty |0.70 | | | Depth to bedrock |0.84

 | | Depth to bedrock |0.84 | | | Rock fragments |0.97

 | | Water erosion |0.99 | | | |

 | | | | | | |

IrCE: | | | | | | |

 Ironmound-----------| 53 |Poor | |Poor | |Poor |

 | | Droughty |0.00 | Depth to bedrock |0.00 | Hard to reclaim |0.00

 | | Depth to bedrock |0.00 | | | (dense layer) |

 | | Low content of |0.12 | | | Depth to bedrock |0.00

 | | organic matter | | | | Slope |0.84

 | | | | | | |

 Coyle---------------| 22 |Fair | |Poor | |Poor |

 | | Depth to bedrock |0.21 | Depth to bedrock |0.00 | Hard to reclaim |0.00

 | | Droughty |0.43 | | | (dense layer) |

 | | Low content of |0.88 | | | Depth to bedrock |0.21

 | | organic matter | | | | Slope |0.84

 | | | | | | |

IroC2: | | | | | | |

 Ironmound-----------| 90 |Poor | |Poor | |Poor |

 | | Depth to bedrock |0.00 | Depth to bedrock |0.00 | Hard to reclaim |0.00

 | | Droughty |0.00 | | | (dense layer) |

 | | Low content of |0.12 | | | Depth to bedrock |0.00

 | | organic matter | | | | |

 | | | | | | |

KgfB: | | | | | | |

 Kingfisher----------| 90 |Fair | |Poor | |Fair |

 | | Low content of |0.12 | Depth to bedrock |0.00 | Hard to reclaim |0.03

 | | organic matter | | Low strength |0.00 | (dense layer) |

 | | Too clayey |0.98 | Shrink-swell |0.87 | Too clayey |0.57

 | | Depth to bedrock |0.99 | | | Depth to bedrock |0.99

 | | Water erosion |0.99 | | | |

 | | | | | | |
Logan County, Oklahoma 305

Construction Materials, Part II—Continued

________________________________________________________________________________________________________

 |Pct.| Potential source of | Potential source of | Potential source of

 Map symbol | of | reclamation material | roadfill | topsoil _____________________________________________________________________________

 and soil name |map | Rating class and |Value| Rating class and |Value| Rating class and |Value

 |unit| limiting features | | limiting features | | limiting features | ________________________________________________________________________________________________________

 | | | | | | |

KinC2: | | | | | | |

 Kingfisher----------| 90 |Fair | |Poor | |Poor |

 | | Depth to bedrock |0.29 | Depth to bedrock |0.00 | Hard to reclaim |0.00

 | | Droughty |0.82 | Low strength |0.00 | (dense layer) |

 | | Water erosion |0.99 | Shrink-swell |0.87 | Depth to bedrock |0.29

 | | | | | | |

KonB, KonD2: | | | | | | |

 Konawa--------------| 96 |Poor | |Good | |Good |

 | | Wind erosion |0.00 | | | |

 | | Low content of |0.32 | | | |

 | | organic matter | | | | |

 | | Too acid |0.84 | | | |

 | | | | | | |

KrdA: | | | | | | |

 Kirkland------------| 90 |Poor | |Poor | |Poor |

 | | Too clayey |0.00 | Low strength |0.00 | Too clayey |0.00

 | | Water erosion |0.68 | Shrink-swell |0.12 | Sodium content |0.78

 | | Sodium content |0.78 | | | |

 | | | | | | |

KrkB: | | | | | | |

 Kirkland------------| 90 |Poor | |Poor | |Poor |

 | | Too clayey |0.00 | Low strength |0.00 | Too clayey |0.00

 | | Sodium content |0.78 | Shrink-swell |0.07 | Sodium content |0.78

 | | Water erosion |0.90 | | | Hard to reclaim |0.84

 | | | | | | (dense layer) |

 | | | | | | |

LarA: | | | | | | |

 Lawrie--------------| 94 |Fair | |Poor | |Good |

 | | Low content of |0.50 | Low strength |0.00 | |

 | | organic matter | | Shrink-swell |0.96 | |

 | | Water erosion |0.99 | | | |

 | | | | | | |

LawA: | | | | | | |

 Lawrie--------------| 86 |Fair | |Poor | |Good |

 | | Water erosion |0.99 | Low strength |0.00 | |

 | | | | Shrink-swell |0.87 | |

 | | | | | | |

LerA: | | | | | | |

 Lebron--------------| 80 |Fair | |Poor | |Poor |

 | | Too clayey |0.08 | Depth to |0.00 | Depth to |0.00

 | | Low content of |0.12 | saturated zone | | saturated zone |

 | | organic matter | | | | Too clayey |0.05

 | | Water erosion |0.90 | | | |

 | | | | | | |

LitB: | | | | | | |

 Littleaxe-----------| 80 |Fair | |Fair | |Poor |

 | | Low content of |0.50 | Depth to bedrock |0.99 | Hard to reclaim |0.00

 | | organic matter | | | | (dense layer) |

 | | Too acid |0.68 | | | |

 | | | | | | |

LitC2: | | | | | | |

 Littleaxe-----------| 80 |Fair | |Fair | |Poor |

 | | Low content of |0.50 | Depth to bedrock |0.74 | Hard to reclaim |0.00

 | | organic matter | | | | (dense layer) |

 | | Too acid |0.68 | | | |

 | | | | | | |

M-W: | | | | | | |

 Miscellaneous water-|100 |Not rated | |Not rated | |Not rated |

 | | | | | | |
306 Soil Survey

Construction Materials, Part II—Continued

________________________________________________________________________________________________________

 |Pct.| Potential source of | Potential source of | Potential source of

 Map symbol | of | reclamation material | roadfill | topsoil _____________________________________________________________________________

 and soil name |map | Rating class and |Value| Rating class and |Value| Rating class and |Value

 |unit| limiting features | | limiting features | | limiting features | ________________________________________________________________________________________________________

 | | | | | | |

MaID: | | | | | | |

 Masham--------------| 52 |Poor | |Poor | |Poor |

 | | Depth to bedrock |0.00 | Depth to bedrock |0.00 | Hard to reclaim |0.00

 | | Droughty |0.00 | | | (dense layer) |

 | | Too clayey |0.00 | | | Depth to bedrock |0.00

 | | Low content of |0.12 | | | Too clayey |0.00

 | | organic matter | | | | Slope |0.63

 | | Water erosion |0.90 | | | |

 | | | | | | |

 Ironmound-----------| 27 |Poor | |Poor | |Poor |

 | | Droughty |0.00 | Depth to bedrock |0.00 | Hard to reclaim |0.00

 | | Depth to bedrock |0.00 | | | (dense layer) |

 | | | | | | Depth to bedrock |0.00

 | | | | | | Slope |0.84

 | | | | | | |

MaIG: | | | | | | |

 Masham--------------| 73 |Poor | |Poor | |Poor |

 | | Droughty |0.00 | Depth to bedrock |0.00 | Slope |0.00

 | | Depth to bedrock |0.00 | Slope |0.00 | Hard to reclaim |0.00

 | | Too clayey |0.00 | | | (dense layer) |

 | | Low content of |0.12 | | | Depth to bedrock |0.00

 | | organic matter | | | | Too clayey |0.00

 | | Water erosion |0.90 | | | |

 | | | | | | |

 Ironmound-----------| 17 |Poor | |Poor | |Poor |

 | | Depth to bedrock |0.00 | Depth to bedrock |0.00 | Slope |0.00

 | | Droughty |0.00 | Slope |0.08 | Hard to reclaim |0.00

 | | Low content of |0.12 | | | (dense layer) |

 | | organic matter | | | | Depth to bedrock |0.00

 | | | | | | |

MinB, MinC, MinD: | | | | | | |

 Minco---------------| 91 |Fair | |Good | |Good |

 | | Water erosion |0.99 | | | |

 | | | | | | |

MinF: | | | | | | |

 Minco---------------| 91 |Fair | |Fair | |Poor |

 | | Water erosion |0.99 | Slope |0.68 | Slope |0.00

 | | | | | | |

MllA: | | | | | | |

 Miller--------------| 95 |Poor | |Poor | |Poor |

 | | Too clayey |0.00 | Low strength |0.00 | Too clayey |0.00

 | | Low content of |0.88 | Shrink-swell |0.12 | |

 | | organic matter | | | | |

 | | Water erosion |0.99 | | | |

 | | | | | | |

MulC: | | | | | | |

 Mulhall-------------| 88 |Fair | |Good | |Poor |

 | | Low content of |0.12 | | | Hard to reclaim |0.00

 | | organic matter | | | | (dense layer) |

 | | Water erosion |0.99 | | | Rock fragments |0.88

 | | | | | | |

MulC2: | | | | | | |

 Mulhall-------------| 88 |Fair | |Good | |Fair |

 | | Low content of |0.12 | | | Hard to reclaim |0.03

 | | organic matter | | | | (dense layer) |

 | | Water erosion |0.99 | | | Rock fragments |0.88

 | | | | | | |

NavA, NavB: | | | | | | |

 Navina--------------| 96 |Fair | |Good | |Good |

 | | Low content of |0.88 | | | |

 | | organic matter | | | | |

 | | Water erosion |0.99 | | | |
Logan County, Oklahoma 307

Construction Materials, Part II—Continued

________________________________________________________________________________________________________

 |Pct.| Potential source of | Potential source of | Potential source of

 Map symbol | of | reclamation material | roadfill | topsoil _____________________________________________________________________________

 and soil name |map | Rating class and |Value| Rating class and |Value| Rating class and |Value

 |unit| limiting features | | limiting features | | limiting features | ________________________________________________________________________________________________________

 | | | | | | |

NeGD4: | | | | | | |

 Newalla-------------| 75 |Poor | |Poor | |Poor |

 | | Too clayey |0.00 | Low strength |0.00 | Too clayey |0.00

 | | Low content of |0.12 | Shrink-swell |0.16 | Hard to reclaim |0.35

 | | organic matter | | Depth to bedrock |0.23 | (dense layer) |

 | | Too acid |0.88 | | | |

 | | Water erosion |0.90 | | | |

 | | | | | | |

 Gullied land--------| 15 |Not rated | |Not rated | |Not rated |

 | | | | | | |

NewB: | | | | | | |

 Newalla-------------| 90 |Poor | |Poor | |Poor |

 | | Too clayey |0.00 | Low strength |0.00 | Too clayey |0.00

 | | Low content of |0.12 | Depth to bedrock |0.23 | Hard to reclaim |0.00

 | | organic matter | | Shrink-swell |0.50 | (dense layer) |

 | | Too acid |0.88 | | | |

 | | Water erosion |0.90 | | | |

 | | | | | | |

NorA: | | | | | | |

 Norge---------------| 93 |Fair | |Poor | |Fair |

 | | Low content of |0.88 | Low strength |0.00 | Too clayey |0.70

 | | organic matter | | Shrink-swell |0.93 | |

 | | Too clayey |0.98 | | | |

 | | Water erosion |0.99 | | | |

 | | | | | | |

NorB: | | | | | | |

 Norge---------------| 90 |Fair | |Poor | |Fair |

 | | Low content of |0.88 | Low strength |0.00 | Too clayey |0.70

 | | organic matter | | Shrink-swell |0.89 | |

 | | Too clayey |0.98 | | | |

 | | Water erosion |0.99 | | | |

 | | | | | | |

NorC2: | | | | | | |

 Norge---------------| 88 |Fair | |Poor | |Fair |

 | | Low content of |0.88 | Low strength |0.00 | Too clayey |0.70

 | | organic matter | | Shrink-swell |0.87 | |

 | | Too clayey |0.98 | | | |

 | | Water erosion |0.99 | | | |

 | | | | | | |

OWHD: | | | | | | |

 Oil waste land------| 50 |Not rated | |Not rated | |Not rated |

 | | | | | | |

 Huska---------------| 30 |Poor | |Poor | |Poor |

 | | Sodium content |0.00 | Low strength |0.00 | Hard to reclaim |0.00

 | | Too clayey |0.00 | Shrink-swell |0.12 | (dense layer) |

 | | Low content of |0.50 | | | Sodium content |0.00

 | | organic matter | | | | Too clayey |0.00

 | | Water erosion |0.68 | | | Salinity |0.00

 | | Droughty |0.91 | | | |

 | | Salinity |0.97 | | | |

 | | | | | | |

PieB: | | | | | | |

 Piedmont------------| 92 |Poor | |Poor | |Poor |

 | | Too clayey |0.00 | Depth to bedrock |0.00 | Hard to reclaim |0.00

 | | Depth to bedrock |0.71 | Low strength |0.00 | (dense layer) |

 | | Low content of |0.88 | Shrink-swell |0.12 | Too clayey |0.00

 | | organic matter | | | | Depth to bedrock |0.71

 | | Water erosion |0.90 | | | |

 | | Droughty |0.93 | | | |

 | | | | | | |
308 Soil Survey

Construction Materials, Part II—Continued

________________________________________________________________________________________________________

 |Pct.| Potential source of | Potential source of | Potential source of

 Map symbol | of | reclamation material | roadfill | topsoil _____________________________________________________________________________

 and soil name |map | Rating class and |Value| Rating class and |Value| Rating class and |Value

 |unit| limiting features | | limiting features | | limiting features | ________________________________________________________________________________________________________

 | | | | | | |

PieC2: | | | | | | |

 Piedmont------------| 93 |Poor | |Poor | |Poor |

 | | Too clayey |0.00 | Depth to bedrock |0.00 | Hard to reclaim |0.00

 | | Depth to bedrock |0.29 | Low strength |0.00 | (dense layer) |0.00

 | | Droughty |0.31 | Shrink-swell |0.12 | Too clayey |0.00

 | | Low content of |0.88 | | | Rock fragments |0.28

 | | organic matter | | | | Depth to bedrock |0.29

 | | Water erosion |0.90 | | | |

 | | | | | | |

PIT: | | | | | | |

 Pits----------------|100 |Not rated | |Not rated | |Not rated |

 | | | | | | |

PukA, PulA: | | | | | | |

 Pulaski-------------| 85 |Fair | |Good | |Good |

 | | Low content of |0.50 | | | |

 | | organic matter | | | | |

 | | | | | | |

RenB: | | | | | | |

 Renfrow-------------| 89 |Poor | |Poor | |Poor |

 | | Too clayey |0.00 | Low strength |0.00 | Hard to reclaim |0.00

 | | Water erosion |0.68 | Shrink-swell |0.25 | (dense layer) |

 | | Low content of |0.88 | | | Too clayey |0.00

 | | organic matter | | | | |

 | | | | | | |

RenC: | | | | | | |

 Renfrow-------------| 89 |Fair | |Poor | |Poor |

 | | Too clayey |0.08 | Low strength |0.00 | Hard to reclaim |0.00

 | | Water erosion |0.68 | Shrink-swell |0.20 | (dense layer) |

 | | Low content of |0.88 | | | Too clayey |0.06

 | | organic matter | | | | |

 | | | | | | |

RewC2: | | | | | | |

 Renfrow-------------| 84 |Poor | |Poor | |Poor |

 | | Too clayey |0.00 | Low strength |0.00 | Too clayey |0.00

 | | Low content of |0.88 | Shrink-swell |0.12 | Hard to reclaim |0.10

 | | organic matter | | | | (dense layer) |

 | | Water erosion |0.90 | | | |

 | | | | | | |

RinB: | | | | | | |

 Renthin-------------| 81 |Poor | |Poor | |Poor |

 | | Too clayey |0.00 | Low strength |0.00 | Hard to reclaim |0.00

 | | Water erosion |0.68 | Shrink-swell |0.15 | (dense layer) |

 | | Low content of |0.88 | Depth to bedrock |0.87 | Too clayey |0.00

 | | organic matter | | | | Rock fragments |0.28

 | | | | | | |

RnnC2: | | | | | | |

 Renthin-------------| 80 |Poor | |Poor | |Poor |

 | | Too clayey |0.00 | Low strength |0.00 | Too clayey |0.00

 | | Water erosion |0.68 | Shrink-swell |0.12 | Hard to reclaim |0.00

 | | Low content of |0.88 | Depth to bedrock |0.58 | (dense layer) |

 | | organic matter | | | | |

 | | | | | | |

SDGD4: | | | | | | |

 Stephenville--------| 32 |Fair | |Poor | |Poor |

 | | Depth to bedrock |0.03 | Depth to bedrock |0.00 | Hard to reclaim |0.00

 | | Droughty |0.08 | | | (dense layer) |

 | | Too acid |0.54 | | | Depth to bedrock |0.03

 | | Low content of |0.88 | | | Too acid |0.98

 | | organic matter | | | | |

 | | | | | | |
Logan County, Oklahoma 309

Construction Materials, Part II—Continued

________________________________________________________________________________________________________

 |Pct.| Potential source of | Potential source of | Potential source of

 Map symbol | of | reclamation material | roadfill | topsoil _____________________________________________________________________________

 and soil name |map | Rating class and |Value| Rating class and |Value| Rating class and |Value

 |unit| limiting features | | limiting features | | limiting features | ________________________________________________________________________________________________________

 | | | | | | |

SDGD4: | | | | | | |

 Darsil--------------| 31 |Poor | |Poor | |Poor |

 | | Wind erosion |0.00 | Depth to bedrock |0.00 | Hard to reclaim |0.00

 | | Droughty |0.00 | | | (dense layer) |

 | | Depth to bedrock |0.00 | | | Depth to bedrock |0.00

 | | Low content of |0.12 | | | Too sandy |0.41

 | | organic matter | | | | Rock fragments |0.88

 | | Too sandy |0.41 | | | |

 | | | | | | |

 Gullied land--------| 23 |Not rated | |Not rated | |Not rated |

 | | | | | | |

SDND: | | | | | | |

 Stephenville--------| 44 |Fair | |Poor | |Fair |

 | | Depth to bedrock |0.35 | Depth to bedrock |0.00 | Hard to reclaim |0.35

 | | Droughty |0.41 | | | (dense layer) |

 | | Too acid |0.54 | | | Depth to bedrock |0.35

 | | Low content of |0.88 | | | Too acid |0.98

 | | organic matter | | | | |

 | | | | | | |

 Darsil--------------| 29 |Poor | |Poor | |Poor |

 | | Droughty |0.00 | Depth to bedrock |0.00 | Hard to reclaim |0.00

 | | Depth to bedrock |0.00 | | | (dense layer) |

 | | Low content of |0.12 | | | Depth to bedrock |0.00

 | | organic matter | | | | Too sandy |0.41

 | | Too sandy |0.41 | | | Rock fragments |0.88

 | | | | | | |

 Newalla-------------| 21 |Poor | |Poor | |Poor |

 | | Too clayey |0.00 | Low strength |0.00 | Too clayey |0.00

 | | Low content of |0.00 | Shrink-swell |0.22 | Hard to reclaim |0.00

 | | organic matter | | Depth to bedrock |0.39 | (dense layer) |

 | | Too acid |0.88 | | | |

 | | Water erosion |0.90 | | | |

 | | | | | | |

SDND2: | | | | | | |

 Stephenville--------| 44 |Fair | |Poor | |Poor |

 | | Depth to bedrock |0.54 | Depth to bedrock |0.00 | Hard to reclaim |0.00

 | | Too acid |0.54 | | | (dense layer) |

 | | Droughty |0.71 | | | Depth to bedrock |0.54

 | | Low content of |0.88 | | | Too acid |0.98

 | | organic matter | | | | |

 | | | | | | |

 Darsil--------------| 33 |Poor | |Poor | |Poor |

 | | Droughty |0.00 | Depth to bedrock |0.00 | Hard to reclaim |0.00

 | | Depth to bedrock |0.00 | | | (dense layer) |

 | | | | | | Depth to bedrock |0.00

 | | | | | | |

 Newalla-------------| 20 |Poor | |Poor | |Poor |

 | | Too clayey |0.00 | Low strength |0.00 | Too clayey |0.00

 | | Low content of |0.12 | Depth to bedrock |0.00 | Hard to reclaim |0.20

 | | organic matter | | Shrink-swell |0.20 | (dense layer) |

 | | Too acid |0.88 | | | |

 | | Water erosion |0.90 | | | |

 | | | | | | |

SlaB: | | | | | | |

 Slaughterville------| 95 |Fair | |Good | |Good |

 | | Low content of |0.50 | | | |

 | | organic matter | | | | |

 | | Too acid |0.92 | | | |

 | | | | | | |
310 Soil Survey

Construction Materials, Part II—Continued

________________________________________________________________________________________________________

 |Pct.| Potential source of | Potential source of | Potential source of

 Map symbol | of | reclamation material | roadfill | topsoil _____________________________________________________________________________

 and soil name |map | Rating class and |Value| Rating class and |Value| Rating class and |Value

 |unit| limiting features | | limiting features | | limiting features | ________________________________________________________________________________________________________

 | | | | | | |

SlaD: | | | | | | |

 Slaughterville------| 95 |Fair | |Good | |Good |

 | | Low content of |0.50 | | | |

 | | organic matter | | | | |

 | | | | | | |

SlaF: | | | | | | |

 Slaughterville------| 95 |Fair | |Good | |Fair |

 | | Low content of |0.50 | | | Slope |0.04

 | | organic matter | | | | |

 | | | | | | |

StDC: | | | | | | |

 Stephenville--------| 55 |Fair | |Poor | |Fair |

 | | Depth to bedrock |0.54 | Depth to bedrock |0.00 | Hard to reclaim |0.05

 | | Too acid |0.54 | | | (dense layer) |

 | | Droughty |0.57 | | | Depth to bedrock |0.54

 | | Low content of |0.88 | | | Too acid |0.98

 | | organic matter | | | | |

 | | | | | | |

 Darsil--------------| 30 |Poor | |Poor | |Poor |

 | | Droughty |0.00 | Depth to bedrock |0.00 | Hard to reclaim |0.00

 | | Depth to bedrock |0.00 | | | (dense layer) |

 | | Low content of |0.12 | | | Depth to bedrock |0.00

 | | organic matter | | | | Too sandy |0.41

 | | Too sandy |0.41 | | | Rock fragments |0.88

 | | | | | | |

StDC2: | | | | | | |

 Stephenville--------| 55 |Fair | |Poor | |Fair |

 | | Too acid |0.54 | Depth to bedrock |0.00 | Hard to reclaim |0.01

 | | Low content of |0.88 | | | (dense layer) |

 | | organic matter | | | | Too acid |0.98

 | | Depth to bedrock |0.99 | | | Depth to bedrock |0.99

 | | | | | | |

 Darsil--------------| 30 |Poor | |Poor | |Poor |

 | | Droughty |0.00 | Depth to bedrock |0.00 | Hard to reclaim |0.00

 | | Depth to bedrock |0.00 | | | (dense layer) |

 | | Low content of |0.12 | | | Depth to bedrock |0.00

 | | organic matter | | | | Too sandy |0.41

 | | Too sandy |0.41 | | | Rock fragments |0.88

 | | | | | | |

StDE: | | | | | | |

 Stephenville--------| 50 |Fair | |Poor | |Fair |

 | | Depth to bedrock |0.29 | Depth to bedrock |0.00 | Slope |0.04

 | | Droughty |0.32 | | | Hard to reclaim |0.29

 | | Too acid |0.54 | | | (dense layer) |

 | | Low content of |0.88 | | | Depth to bedrock |0.29

 | | organic matter | | | | Too acid |0.98

 | | | | | | |

 Darsil--------------| 40 |Poor | |Poor | |Poor |

 | | Wind erosion |0.00 | Depth to bedrock |0.00 | Hard to reclaim |0.00

 | | Droughty |0.00 | | | (dense layer) |

 | | Depth to bedrock |0.00 | | | Depth to bedrock |0.00

 | | Low content of |0.12 | | | Too sandy |0.41

 | | organic matter | | | | Rock fragments |0.88

 | | Too sandy |0.41 | | | |

 | | | | | | |

SteB: | | | | | | |

 Stephenville--------| 94 |Fair | |Poor | |Fair |

 | | Too acid |0.54 | Depth to bedrock |0.00 | Hard to reclaim |0.03

 | | Low content of |0.88 | | | Depth to bedrock |0.90

 | | organic matter | | | | Too acid |0.98

 | | Depth to bedrock |0.90 | | | |

 | | Droughty |0.95 | | | |
Logan County, Oklahoma 311

Construction Materials, Part II—Continued

________________________________________________________________________________________________________

 |Pct.| Potential source of | Potential source of | Potential source of

 Map symbol | of | reclamation material | roadfill | topsoil _____________________________________________________________________________

 and soil name |map | Rating class and |Value| Rating class and |Value| Rating class and |Value

 |unit| limiting features | | limiting features | | limiting features | ________________________________________________________________________________________________________

 | | | | | | |

SteC2: | | | | | | |

 Stephenville--------| 92 |Fair | |Poor | |Fair |

 | | Depth to bedrock |0.46 | Depth to bedrock |0.00 | Hard to reclaim |0.46

 | | Too acid |0.54 | | | Depth to bedrock |0.46

 | | Droughty |0.65 | | | Too acid |0.98

 | | Low content of |0.88 | | | |

 | | organic matter | | | | |

 | | | | | | |

SUND: | | | | | | |

 Stephenville--------| 35 |Fair | |Poor | |Fair |

 | | Depth to bedrock |0.35 | Depth to bedrock |0.00 | Hard to reclaim |0.35

 | | Droughty |0.53 | | | (dense layer) |

 | | Too acid |0.54 | | | Depth to bedrock |0.35

 | | Low content of |0.88 | | | Too acid |0.98

 | | organic matter | | | | |

 | | | | | | |

 Urban land----------| 30 |Not rated | |Not rated | |Not rated |

 | | | | | | |

 Newalla-------------| 15 |Poor | |Poor | |Poor |

 | | Too clayey |0.00 | Low strength |0.00 | Too clayey |0.00

 | | Low content of |0.12 | Shrink-swell |0.15 | Hard to reclaim |0.84

 | | organic matter | | Depth to bedrock |0.99 | (dense layer) |

 | | Water erosion |0.68 | | | |

 | | Too acid |0.88 | | | |

 | | | | | | |

TelB, TelC2: | | | | | | |

 Teller--------------| 96 |Fair | |Good | |Good |

 | | Low content of |0.88 | | | |

 | | organic matter | | | | |

 | | Water erosion |0.99 | | | |

 | | | | | | |

TriA: | | | | | | |

 Tribbey-------------| 90 |Fair | |Fair | |Fair |

 | | Low content of |0.12 | Depth to |0.53 | Depth to |0.53

 | | organic matter | | saturated zone | | saturated zone |

 | | | | | | |

URB: | | | | | | |

 Urban land----------|100 |Not rated | |Not rated | |Not rated |

 | | | | | | |

W: | | | | | | |

 Water---------------|100 |Not rated | |Not rated | |Not rated |

 | | | | | | |

YaaA, YahA: | | | | | | |

 Yahola--------------| 87 |Fair | |Good | |Good |

 | | Low content of |0.12 | | | |

 | | organic matter | | | | |

 | | | | | | |

ZaHC: | | | | | | |

 Zaneis--------------| 55 |Fair | |Fair | |Fair |

 | | Low content of |0.88 | Depth to bedrock |0.74 | Hard to reclaim |0.16

 | | organic matter | | | | (dense layer) |

 | | Water erosion |0.99 | | | |

 | | | | | | |

 Huska---------------| 25 |Poor | |Poor | |Poor |

 | | Sodium content |0.00 | Low strength |0.00 | Hard to reclaim |0.00

 | | Too clayey |0.05 | Shrink-swell |0.12 | (dense layer) |

 | | Low content of |0.50 | | | Sodium content |0.00

 | | organic matter | | | | Salinity |0.00

 | | Water erosion |0.68 | | | Too clayey |0.03

 | | Droughty |0.85 | | | |

 | | Salinity |0.97 | | | |

 | | | | | | |
312 Soil Survey

Construction Materials, Part II—Continued

________________________________________________________________________________________________________

 |Pct.| Potential source of | Potential source of | Potential source of

 Map symbol | of | reclamation material | roadfill | topsoil _____________________________________________________________________________

 and soil name |map | Rating class and |Value| Rating class and |Value| Rating class and |Value

 |unit| limiting features | | limiting features | | limiting features | ________________________________________________________________________________________________________

 | | | | | | |

ZanB: | | | | | | |

 Zaneis--------------| 87 |Fair | |Fair | |Poor |

 | | Low content of |0.88 | Depth to bedrock |0.12 | Hard to reclaim |0.00

 | | organic matter | | Shrink-swell |0.99 | (dense layer) |

 | | Water erosion |0.99 | | | |

 | | | | | | |

ZanC: | | | | | | |

 Zaneis--------------| 87 |Fair | |Fair | |Poor |

 | | Low content of |0.88 | Depth to bedrock |0.29 | Hard to reclaim |0.00

 | | organic matter | | Shrink-swell |0.99 | (dense layer) |

 | | Water erosion |0.99 | | | |

 | | | | | | |

ZanC2: | | | | | | |

 Zaneis--------------| 87 |Fair | |Fair | |Poor |

 | | Low content of |0.88 | Depth to bedrock |0.95 | Hard to reclaim |0.00

 | | organic matter | | Shrink-swell |0.99 | (dense layer) |

 | | Water erosion |0.99 | | | |

 | | | | | | | ________________________________________________________________________________________________________
Logan County, Oklahoma 313

Water Management

The table “Water Management” gives information on the soil properties and site

features that affect water management. The degree and kind of soil limitations are

given for pond reservoir areas; embankments, dikes, and levees; and aquifer-fed

excavated ponds. The ratings are both verbal and numerical. Rating class terms

indicate the extent to which the soils are limited by all of the soil features that affect

these uses.

Not limited indicates that the soil has features that are very favorable for the

specified use. Good performance and very low maintenance can be expected.

Somewhat limited indicates that the soil has features that are moderately favorable

for the specified use. The limitations can be overcome or minimized by special

planning, design, or installation. Fair performance and moderate maintenance can be

expected.

Very limited indicates that the soil has one or more features that are unfavorable for

the specified use. The limitations generally cannot be overcome without major soil

reclamation, special design, or expensive installation procedures. Poor performance

and high maintenance can be expected.

Numerical ratings in the table indicate the severity of individual limitations. The

ratings are shown as decimal fractions ranging from 0.01 to 1.00. They indicate

gradations between the point at which a soil feature has the greatest negative impact

on the use (1.00) and the point at which the soil feature is not a limitation (0.00).

Pond reservoir areas hold water behind a dam or embankment. Soils best suited to

this use have low seepage potential in the upper 6 feet. The seepage potential is

determined by the permeability of the soil and the depth to fractured bedrock or other

permeable material. Excessive slope can affect the storage capacity of the reservoir

area.

Embankments, dikes, and levees are raised structures of soil material, generally

less than 20 feet high, constructed to impound water or to protect land against

overflow. Embankments that have zoned construction (core and shell) are not

considered. In this table, the soils are rated as a source of material for embankment

fill. The ratings apply to the soil material below the surface layer to a depth of about 6

feet. It is assumed that soil layers will be uniformly mixed and compacted during

construction. The ratings do not indicate the ability of the natural soil to support an

embankment. Soil properties to a depth even greater than the height of the

embankment can affect performance and safety of the embankment. Generally,

deeper onsite investigation is needed to determine these properties. Soil material in

embankments must be resistant to seepage, piping, and erosion and have favorable

compaction characteristics. Unfavorable features include less than 5 feet of suitable

material and a high content of stones or boulders, organic matter, or salts or sodium. A

high water table affects the amount of usable material. It also affects trafficability.

Aquifer-fed excavated ponds are pits or dugouts that extend to a ground-water

aquifer or to a depth below a permanent water table. Excluded are ponds that are fed

only by surface runoff and embankment ponds that impound water 3 feet or more

above the original surface. Excavated ponds are affected by depth to a permanent

water table, permeability of the aquifer, and quality of the water as inferred from the

salinity of the soil. Depth to bedrock and the content of large stones affect the ease of

excavation.
314 Soil Survey

Water Management

(The information in this table indicates the dominant soil condition but does not eliminate the need

 for onsite investigation. The numbers in the value columns range from 0.01 to 1.00. The larger

 the value, the greater the limitation. See text for further explanation of ratings in this table)

________________________________________________________________________________________________________

 | | | |

 Map symbol |Pct.| Pond reservoir areas | Embankments, dikes, and | Aquifer-fed

 and soil name | of | | levees | excavated ponds _____________________________________________________________________________

 |map | Rating class and |Value| Rating class and |Value| Rating class and |Value

 |unit| limiting features | | limiting features | | limiting features | ________________________________________________________________________________________________________

 | | | | | | |

AspA: | | | | | | |

 Ashport-------------| 95 |Somewhat limited | |Somewhat limited | |Very limited |

 | | Seepage |0.72 | Piping |0.80 | Depth to water |1.00

 | | | | | | |

AstA: | | | | | | |

 Ashport-------------| 90 |Somewhat limited | |Somewhat limited | |Very limited |

 | | Seepage |0.72 | Piping |0.13 | Depth to water |1.00

 | | | | | | |

BetA, BetB: | | | | | | |

 Bethany-------------| 93 |Somewhat limited | |Not limited | |Very limited |

 | | Seepage |0.04 | | | Depth to water |1.00

 | | | | | | |

BocA: | | | | | | |

 Bocox---------------| 94 |Very limited | |Very limited | |Very limited |

 | | Seepage |1.00 | Depth to |1.00 | Cutbanks cave |1.00

 | | | | saturated zone | | |

 | | | | Ponding |1.00 | |

 | | | | | | |

BtlA: | | | | | | |

 Bathel--------------| 94 |Very limited | |Very limited | |Somewhat limited |

 | | Seepage |1.00 | Ponding |1.00 | Depth to water |0.14

 | | | | Depth to |0.68 | Cutbanks cave |0.10

 | | | | saturated zone | | |

 | | | | | | |

CaaA: | | | | | | |

 Canadian------------| 94 |Very limited | |Not limited | |Very limited |

 | | Seepage |1.00 | | | Depth to water |1.00

 | | | | | | |

CAID: | | | | | | |

 Coyle---------------| 31 |Somewhat limited | |Very limited | |Very limited |

 | | Seepage |0.72 | Piping |1.00 | Depth to water |1.00

 | | Depth to bedrock |0.03 | | | |

 | | | | | | |

 Ashport-------------| 28 |Somewhat limited | |Somewhat limited | |Very limited |

 | | Seepage |0.72 | Piping |0.81 | Depth to water |1.00

 | | | | | | |

 Ironmound-----------| 22 |Somewhat limited | |Very limited | |Very limited |

 | | Depth to bedrock |0.53 | Piping |1.00 | Depth to water |1.00

 | | | | | | |

CoIC2: | | | | | | |

 Coyle---------------| 61 |Somewhat limited | |Very limited | |Very limited |

 | | Seepage |0.72 | Piping |1.00 | Depth to water |1.00

 | | Depth to bedrock |0.02 | | | |

 | | | | | | |

 Ironmound-----------| 33 |Somewhat limited | |Not limited | |Very limited |

 | | Depth to bedrock |0.58 | | | Depth to water |1.00

 | | | | | | |

CoUB: | | | | | | |

 Coyle---------------| 55 |Somewhat limited | |Very limited | |Very limited |

 | | Seepage |0.72 | Piping |1.00 | No ground water |1.00

 | | Depth to bedrock |0.37 | Thin layer |0.99 | |

 | | | | | | |

 Urban land----------| 40 |Not rated | |Not rated | |Not rated |

 | | | | | | |
Logan County, Oklahoma 315

Water Management—Continued

________________________________________________________________________________________________________

 | | | |

 Map symbol |Pct.| Pond reservoir areas | Embankments, dikes, and | Aquifer-fed

 and soil name | of | | levees | excavated ponds _____________________________________________________________________________

 |map | Rating class and |Value| Rating class and |Value| Rating class and |Value

 |unit| limiting features | | limiting features | | limiting features | ________________________________________________________________________________________________________

 | | | | | | |

CoUC: | | | | | | |

 Coyle---------------| 42 |Somewhat limited | |Not limited | |Very limited |

 | | Seepage |0.72 | | | Depth to water |1.00

 | | Depth to bedrock |0.13 | | | |

 | | | | | | |

 Urban land----------| 38 |Not rated | |Not rated | |Not rated |

 | | | | | | |

CoyB: | | | | | | |

 Coyle---------------| 91 |Somewhat limited | |Not limited | |Very limited |

 | | Seepage |0.72 | | | Depth to water |1.00

 | | Depth to bedrock |0.09 | | | |

 | | | | | | |

CoyC2: | | | | | | |

 Coyle---------------| 91 |Somewhat limited | |Not limited | |Very limited |

 | | Seepage |0.72 | | | Depth to water |1.00

 | | Depth to bedrock |0.19 | | | |

 | | | | | | |

CoZC3: | | | | | | |

 Coyle---------------| 70 |Somewhat limited | |Not limited | |Very limited |

 | | Seepage |0.72 | | | Depth to water |1.00

 | | Depth to bedrock |0.09 | | | |

 | | | | | | |

 Zaneis--------------| 15 |Somewhat limited | |Not limited | |Very limited |

 | | Seepage |0.72 | | | Depth to water |1.00

 | | Depth to bedrock |0.01 | | | |

 | | | | | | |

DAM: | | | | | | |

 Dam-----------------|100 |Not rated | |Not rated | |Not rated |

 | | | | | | |

DerB: | | | | | | |

 Derby---------------| 90 |Very limited | |Somewhat limited | |Very limited |

 | | Seepage |1.00 | Seepage |0.02 | Depth to water |1.00

 | | | | | | |

DerD: | | | | | | |

 Derby---------------| 90 |Very limited | |Somewhat limited | |Very limited |

 | | Seepage |1.00 | Seepage |0.14 | Depth to water |1.00

 | | | | | | |

DerE: | | | | | | |

 Derby---------------| 90 |Very limited | |Somewhat limited | |Very limited |

 | | Seepage |1.00 | Seepage |0.14 | Depth to water |1.00

 | | Slope |0.01 | | | |

 | | | | | | |

DiRG: | | | | | | |

 Darsil--------------| 67 |Somewhat limited | |Somewhat limited | |Very limited |

 | | Depth to bedrock |0.61 | Seepage |0.02 | Depth to water |1.00

 | | Seepage |0.54 | | | |

 | | Slope |0.50 | | | |

 | | | | | | |

 Rock outcrop--------| 20 |Not rated | |Not rated | |Not rated |

 | | | | | | |

DouB: | | | | | | |

 Dougherty-----------| 91 |Very limited | |Somewhat limited | |Very limited |

 | | Seepage |1.00 | Seepage |0.06 | Depth to water |1.00

 | | | | | | |

DouD: | | | | | | |

 Dougherty-----------| 91 |Very limited | |Somewhat limited | |Very limited |

 | | Seepage |1.00 | Seepage |0.05 | Depth to water |1.00

 | | | | | | |

DUM: | | | | | | |

 Dumps---------------|100 |Not rated | |Not rated | |Not rated |

 | | | | | | |
316 Soil Survey

Water Management—Continued

________________________________________________________________________________________________________

 | | | |

 Map symbol |Pct.| Pond reservoir areas | Embankments, dikes, and | Aquifer-fed

 and soil name | of | | levees | excavated ponds _____________________________________________________________________________

 |map | Rating class and |Value| Rating class and |Value| Rating class and |Value

 |unit| limiting features | | limiting features | | limiting features | ________________________________________________________________________________________________________

 | | | | | | |

EasA: | | | | | | |

 Easpur--------------| 93 |Somewhat limited | |Somewhat limited | |Very limited |

 | | Seepage |0.72 | Piping |0.99 | Depth to water |1.00

 | | | | | | |

GadA: | | | | | | |

 Gaddy---------------| 85 |Very limited | |Somewhat limited | |Very limited |

 | | Seepage |1.00 | Seepage |0.06 | Depth to water |1.00

 | | | | | | |

GaGA: | | | | | | |

 Gaddy---------------| 67 |Very limited | |Not limited | |Very limited |

 | | Seepage |1.00 | | | Depth to water |1.00

 | | | | | | |

 Gracemore-----------| 23 |Very limited | |Very limited | |Very limited |

 | | Seepage |1.00 | Depth to |1.00 | Cutbanks cave |1.00

 | | | | saturated zone | | |

 | | | | Seepage |0.13 | |

 | | | | | | |

GMGE4: | | | | | | |

 Grainola------------| 40 |Somewhat limited | |Not limited | |Very limited |

 | | Depth to bedrock |0.02 | | | Depth to water |1.00

 | | | | | | |

 Masham--------------| 30 |Somewhat limited | |Not limited | |Very limited |

 | | Depth to bedrock |0.61 | | | Depth to water |1.00

 | | | | | | |

 Gullied land--------| 20 |Not rated | |Not rated | |Not rated |

 | | | | | | |

GMLG: | | | | | | |

 Grainola------------| 37 |Somewhat limited | |Not limited | |Very limited |

 | | Depth to bedrock |0.11 | | | Depth to water |1.00

 | | Slope |0.03 | | | |

 | | | | | | |

 Masham--------------| 22 |Somewhat limited | |Not limited | |Very limited |

 | | Depth to bedrock |0.74 | | | Depth to water |1.00

 | | Slope |0.50 | | | |

 | | | | | | |

 Lucien--------------| 21 |Somewhat limited | |Not limited | |Very limited |

 | | Depth to bedrock |0.58 | | | Depth to water |1.00

 | | Slope |0.08 | | | |

 | | | | | | |

GohC, GohE, GooE: | | | | | | |

 Goodnight-----------| 92 |Very limited | |Somewhat limited | |Very limited |

 | | Seepage |1.00 | Seepage |0.12 | Depth to water |1.00

 | | | | | | |

GooG: | | | | | | |

 Goodnight-----------| 92 |Very limited | |Somewhat limited | |Very limited |

 | | Seepage |1.00 | Seepage |0.12 | Depth to water |1.00

 | | Slope |0.21 | | | |

 | | | | | | |

GraC: | | | | | | |

 Grainola------------| 88 |Somewhat limited | |Somewhat limited | |Very limited |

 | | Depth to bedrock |0.08 | Piping |0.12 | Depth to water |1.00

 | | | | | | |

GraD2: | | | | | | |

 Grainola------------| 89 |Somewhat limited | |Somewhat limited | |Very limited |

 | | Depth to bedrock |0.02 | Piping |0.04 | Depth to water |1.00

 | | | | | | |
Logan County, Oklahoma 317

Water Management—Continued

________________________________________________________________________________________________________

 | | | |

 Map symbol |Pct.| Pond reservoir areas | Embankments, dikes, and | Aquifer-fed

 and soil name | of | | levees | excavated ponds _____________________________________________________________________________

 |map | Rating class and |Value| Rating class and |Value| Rating class and |Value

 |unit| limiting features | | limiting features | | limiting features | ________________________________________________________________________________________________________

 | | | | | | |

GrHC: | | | | | | |

 Grant---------------| 45 |Somewhat limited | |Somewhat limited | |Very limited |

 | | Seepage |0.72 | Piping |0.94 | Depth to water |1.00

 | | Depth to bedrock |0.01 | | | |

 | | | | | | |

 Huska---------------| 35 |Somewhat limited | |Very limited | |Very limited |

 | | Depth to bedrock |0.01 | Piping |1.00 | Depth to water |1.00

 | | | | Salinity |0.03 | |

 | | | | | | |

GrIE: | | | | | | |

 Grainola------------| 71 |Somewhat limited | |Somewhat limited | |Very limited |

 | | Depth to bedrock |0.02 | Thin layer |0.56 | No ground water |1.00

 | | | | | | |

 Ironmound-----------| 20 |Somewhat limited | |Very limited | |Very limited |

 | | Depth to bedrock |0.53 | Thin layer |1.00 | No ground water |1.00

 | | | | Piping |1.00 | |

 | | | | | | |

GrLE: | | | | | | |

 Grainola------------| 55 |Somewhat limited | |Somewhat limited | |Very limited |

 | | Depth to bedrock |0.20 | Piping |0.01 | Depth to water |1.00

 | | | | | | |

 Lucien--------------| 26 |Somewhat limited | |Very limited | |Very limited |

 | | Depth to bedrock |0.78 | Piping |1.00 | Depth to water |1.00

 | | | | | | |

HaGD4: | | | | | | |

 Harrah--------------| 70 |Somewhat limited | |Not limited | |Very limited |

 | | Seepage |0.72 | | | Depth to water |1.00

 | | | | | | |

 Gullied land--------| 15 |Not rated | |Not rated | |Not rated |

 | | | | | | |

HarC, HarC2: | | | | | | |

 Harrah--------------| 91 |Somewhat limited | |Not limited | |Very limited |

 | | Seepage |0.72 | | | Depth to water |1.00

 | | | | | | |

HarG: | | | | | | |

 Harrah--------------| 86 |Somewhat limited | |Not limited | |Very limited |

 | | Seepage |0.72 | | | Depth to water |1.00

 | | Slope |0.24 | | | |

 | | | | | | |

HawB: | | | | | | |

 Hawley--------------| 94 |Very limited | |Very limited | |Very limited |

 | | Seepage |1.00 | Piping |1.00 | Depth to water |1.00

 | | | | Seepage |0.01 | |

 | | | | | | |

ICGD3: | | | | | | |

 Ironmound-----------| 40 |Somewhat limited | |Not limited | |Very limited |

 | | Depth to bedrock |0.78 | | | Depth to water |1.00

 | | | | | | |

 Coyle---------------| 30 |Somewhat limited | |Very limited | |Very limited |

 | | Seepage |0.72 | Piping |1.00 | Depth to water |1.00

 | | Depth to bedrock |0.04 | | | |

 | | | | | | |

 Grainola------------| 15 |Somewhat limited | |Not limited | |Very limited |

 | | Depth to bedrock |0.05 | | | Depth to water |1.00

 | | | | | | |
318 Soil Survey

Water Management—Continued

________________________________________________________________________________________________________

 | | | |

 Map symbol |Pct.| Pond reservoir areas | Embankments, dikes, and | Aquifer-fed

 and soil name | of | | levees | excavated ponds _____________________________________________________________________________

 |map | Rating class and |Value| Rating class and |Value| Rating class and |Value

 |unit| limiting features | | limiting features | | limiting features | ________________________________________________________________________________________________________

 | | | | | | |

IrCE: | | | | | | |

 Ironmound-----------| 53 |Somewhat limited | |Not limited | |Very limited |

 | | Depth to bedrock |0.66 | | | Depth to water |1.00

 | | | | | | |

 Coyle---------------| 22 |Somewhat limited | |Not limited | |Very limited |

 | | Seepage |0.72 | | | Depth to water |1.00

 | | Depth to bedrock |0.23 | | | |

 | | | | | | |

IroC2: | | | | | | |

 Ironmound-----------| 90 |Somewhat limited | |Not limited | |Very limited |

 | | Depth to bedrock |0.61 | | | Depth to water |1.00

 | | | | | | |

KgfB: | | | | | | |

 Kingfisher----------| 90 |Somewhat limited | |Somewhat limited | |Very limited |

 | | Seepage |0.04 | Piping |0.33 | Depth to water |1.00

 | | Depth to bedrock |0.02 | | | |

 | | | | | | |

KinC2: | | | | | | |

 Kingfisher----------| 90 |Somewhat limited | |Somewhat limited | |Very limited |

 | | Depth to bedrock |0.19 | Piping |0.99 | Depth to water |1.00

 | | Seepage |0.04 | | | |

 | | | | | | |

KonB: | | | | | | |

 Konawa--------------| 96 |Very limited | |Somewhat limited | |Very limited |

 | | Seepage |1.00 | Seepage |0.06 | Depth to water |1.00

 | | | | | | |

KonD2: | | | | | | |

 Konawa--------------| 96 |Very limited | |Not limited | |Very limited |

 | | Seepage |1.00 | | | Depth to water |1.00

 | | | | | | |

KrdA, KrkB: | | | | | | |

 Kirkland------------| 90 |Not limited | |Very limited | |Very limited |

 | | | | Hard to pack |1.00 | Depth to water |1.00

 | | | | | | |

LarA: | | | | | | |

 Lawrie--------------| 94 |Somewhat limited | |Somewhat limited | |Very limited |

 | | Seepage |0.72 | Piping |0.70 | Depth to water |1.00

 | | | | | | |

LawA: | | | | | | |

 Lawrie--------------| 86 |Somewhat limited | |Somewhat limited | |Very limited |

 | | Seepage |0.72 | Piping |0.65 | Depth to water |1.00

 | | | | | | |

LerA: | | | | | | |

 Lebron--------------| 80 |Very limited | |Very limited | |Very limited |

 | | Seepage |1.00 | Depth to |1.00 | Cutbanks cave |1.00

 | | | | saturated zone | | |

 | | | | Ponding |1.00 | |

 | | | | | | |

LitB, LitC2: | | | | | | |

 Littleaxe-----------| 80 |Very limited | |Not limited | |Very limited |

 | | Seepage |1.00 | | | Depth to water |1.00

 | | Depth to bedrock |0.01 | | | |

 | | | | | | |

M-W: | | | | | | |

 Miscellaneous water-|100 |Not rated | |Not rated | |Not rated |

 | | | | | | |
Logan County, Oklahoma 319

Water Management—Continued

________________________________________________________________________________________________________

 | | | |

 Map symbol |Pct.| Pond reservoir areas | Embankments, dikes, and | Aquifer-fed

 and soil name | of | | levees | excavated ponds _____________________________________________________________________________

 |map | Rating class and |Value| Rating class and |Value| Rating class and |Value

 |unit| limiting features | | limiting features | | limiting features | ________________________________________________________________________________________________________

 | | | | | | |

MaID: | | | | | | |

 Masham--------------| 52 |Somewhat limited | |Not limited | |Very limited |

 | | Depth to bedrock |0.61 | | | Depth to water |1.00

 | | Slope |0.01 | | | |

 | | | | | | |

 Ironmound-----------| 27 |Somewhat limited | |Not limited | |Very limited |

 | | Depth to bedrock |0.80 | | | Depth to water |1.00

 | | | | | | |

MaIG: | | | | | | |

 Masham--------------| 73 |Somewhat limited | |Somewhat limited | |Very limited |

 | | Depth to bedrock |0.78 | Piping |0.74 | Depth to water |1.00

 | | Slope |0.64 | | | |

 | | | | | | |

 Ironmound-----------| 17 |Somewhat limited | |Very limited | |Very limited |

 | | Depth to bedrock |0.66 | Piping |1.00 | Depth to water |1.00

 | | Slope |0.21 | | | |

 | | | | | | |

MinB, MinC, MinD: | | | | | | |

 Minco---------------| 91 |Somewhat limited | |Very limited | |Very limited |

 | | Seepage |0.72 | Piping |1.00 | Depth to water |1.00

 | | | | | | |

MinF: | | | | | | |

 Minco---------------| 91 |Somewhat limited | |Very limited | |Very limited |

 | | Seepage |0.72 | Piping |1.00 | Depth to water |1.00

 | | Slope |0.10 | | | |

 | | | | | | |

MllA: | | | | | | |

 Miller--------------| 95 |Not limited | |Not limited | |Very limited |

 | | | | | | Depth to water |1.00

 | | | | | | |

MulC: | | | | | | |

 Mulhall-------------| 88 |Somewhat limited | |Very limited | |Very limited |

 | | Seepage |0.72 | Piping |1.00 | Depth to water |1.00

 | | | | | | |

MulC2: | | | | | | |

 Mulhall-------------| 88 |Somewhat limited | |Somewhat limited | |Very limited |

 | | Seepage |0.72 | Piping |0.94 | Depth to water |1.00

 | | | | | | |

NavA, NavB: | | | | | | |

 Navina--------------| 96 |Somewhat limited | |Very limited | |Very limited |

 | | Seepage |0.72 | Piping |1.00 | Depth to water |1.00

 | | | | | | |

NeGD4: | | | | | | |

 Newalla-------------| 75 |Somewhat limited | |Somewhat limited | |Very limited |

 | | Depth to bedrock |0.01 | Piping |0.31 | Depth to water |1.00

 | | | | | | |

 Gullied land--------| 15 |Not rated | |Not rated | |Not rated |

 | | | | | | |

NewB: | | | | | | |

 Newalla-------------| 90 |Somewhat limited | |Somewhat limited | |Very limited |

 | | Depth to bedrock |0.01 | Piping |0.34 | Depth to water |1.00

 | | | | | | |

NorA: | | | | | | |

 Norge---------------| 93 |Somewhat limited | |Somewhat limited | |Very limited |

 | | Seepage |0.54 | Piping |0.65 | Depth to water |1.00

 | | | | | | |

NorB: | | | | | | |

 Norge---------------| 90 |Somewhat limited | |Somewhat limited | |Very limited |

 | | Seepage |0.04 | Piping |0.53 | Depth to water |1.00

 | | | | | | |
320 Soil Survey

Water Management—Continued

________________________________________________________________________________________________________

 | | | |

 Map symbol |Pct.| Pond reservoir areas | Embankments, dikes, and | Aquifer-fed

 and soil name | of | | levees | excavated ponds _____________________________________________________________________________

 |map | Rating class and |Value| Rating class and |Value| Rating class and |Value

 |unit| limiting features | | limiting features | | limiting features | ________________________________________________________________________________________________________

 | | | | | | |

NorC2: | | | | | | |

 Norge---------------| 88 |Somewhat limited | |Somewhat limited | |Very limited |

 | | Seepage |0.04 | Piping |0.37 | Depth to water |1.00

 | | | | | | |

OWHD: | | | | | | |

 Oil waste land------| 50 |Not rated | |Not rated | |Not rated |

 | | | | | | |

 Huska---------------| 30 |Not limited | |Very limited | |Very limited |

 | | | | Piping |1.00 | Depth to water |1.00

 | | | | Salinity |0.03 | |

 | | | | | | |

PieB: | | | | | | |

 Piedmont------------| 92 |Somewhat limited | |Somewhat limited | |Very limited |

 | | Depth to bedrock |0.08 | Piping |0.12 | Depth to water |1.00

 | | | | | | |

PieC2: | | | | | | |

 Piedmont------------| 93 |Somewhat limited | |Somewhat limited | |Very limited |

 | | Depth to bedrock |0.19 | Piping |0.52 | Depth to water |1.00

 | | | | | | |

PIT: | | | | | | |

 Pits----------------|100 |Not rated | |Not rated | |Not rated |

 | | | | | | |

PukA, PulA: | | | | | | |

 Pulaski-------------| 85 |Very limited | |Very limited | |Very limited |

 | | Seepage |1.00 | Piping |1.00 | Depth to water |1.00

 | | | | | | |

RenB: | | | | | | |

 Renfrow-------------| 89 |Not limited | |Somewhat limited | |Very limited |

 | | | | Piping |0.01 | Depth to water |1.00

 | | | | | | |

RenC: | | | | | | |

 Renfrow-------------| 89 |Not limited | |Somewhat limited | |Very limited |

 | | | | Piping |0.04 | Depth to water |1.00

 | | | | | | |

RewC2: | | | | | | |

 Renfrow-------------| 84 |Not limited | |Somewhat limited | |Very limited |

 | | | | Piping |0.06 | Depth to water |1.00

 | | | | | | |

RinB: | | | | | | |

 Renthin-------------| 81 |Somewhat limited | |Not limited | |Very limited |

 | | Depth to bedrock |0.01 | | | Depth to water |1.00

 | | | | | | |

RnnC2: | | | | | | |

 Renthin-------------| 80 |Somewhat limited | |Somewhat limited | |Very limited |

 | | Depth to bedrock |0.01 | Piping |0.07 | Depth to water |1.00

 | | | | | | |

SDGD4: | | | | | | |

 Stephenville--------| 32 |Somewhat limited | |Not limited | |Very limited |

 | | Seepage |0.72 | | | Depth to water |1.00

 | | Depth to bedrock |0.37 | | | |

 | | | | | | |

 Darsil--------------| 31 |Somewhat limited | |Somewhat limited | |Very limited |

 | | Depth to bedrock |0.78 | Seepage |0.02 | Depth to water |1.00

 | | Seepage |0.54 | | | |

 | | | | | | |

 Gullied land--------| 23 |Not rated | |Not rated | |Not rated |

 | | | | | | |
Logan County, Oklahoma 321

Water Management—Continued

________________________________________________________________________________________________________

 | | | |

 Map symbol |Pct.| Pond reservoir areas | Embankments, dikes, and | Aquifer-fed

 and soil name | of | | levees | excavated ponds _____________________________________________________________________________

 |map | Rating class and |Value| Rating class and |Value| Rating class and |Value

 |unit| limiting features | | limiting features | | limiting features | ________________________________________________________________________________________________________

 | | | | | | |

SDND: | | | | | | |

 Stephenville--------| 44 |Somewhat limited | |Not limited | |Very limited |

 | | Seepage |0.72 | | | Depth to water |1.00

 | | Depth to bedrock |0.17 | | | |

 | | | | | | |

 Darsil--------------| 29 |Somewhat limited | |Somewhat limited | |Very limited |

 | | Seepage |0.54 | Seepage |0.02 | Depth to water |1.00

 | | Depth to bedrock |0.53 | | | |

 | | | | | | |

 Newalla-------------| 21 |Somewhat limited | |Not limited | |Very limited |

 | | Depth to bedrock |0.01 | | | Depth to water |1.00

 | | | | | | |

SDND2: | | | | | | |

 Stephenville--------| 44 |Somewhat limited | |Not limited | |Very limited |

 | | Seepage |0.72 | | | Depth to water |1.00

 | | Depth to bedrock |0.11 | | | |

 | | | | | | |

 Darsil--------------| 33 |Somewhat limited | |Somewhat limited | |Very limited |

 | | Depth to bedrock |0.80 | Seepage |0.02 | Depth to water |1.00

 | | Seepage |0.54 | | | |

 | | | | | | |

 Newalla-------------| 20 |Somewhat limited | |Not limited | |Very limited |

 | | Depth to bedrock |0.01 | | | Depth to water |1.00

 | | | | | | |

SlaB: | | | | | | |

 Slaughterville------| 95 |Very limited | |Not limited | |Very limited |

 | | Seepage |1.00 | | | Depth to water |1.00

 | | | | | | |

SlaD: | | | | | | |

 Slaughterville------| 95 |Very limited | |Somewhat limited | |Very limited |

 | | Seepage |1.00 | Seepage |0.07 | Depth to water |1.00

 | | | | | | |

SlaF: | | | | | | |

 Slaughterville------| 95 |Very limited | |Somewhat limited | |Very limited |

 | | Seepage |1.00 | Seepage |0.07 | Depth to water |1.00

 | | Slope |0.02 | | | |

 | | | | | | |

StDC: | | | | | | |

 Stephenville--------| 55 |Somewhat limited | |Not limited | |Very limited |

 | | Seepage |0.72 | | | Depth to water |1.00

 | | Depth to bedrock |0.11 | | | |

 | | | | | | |

 Darsil--------------| 30 |Somewhat limited | |Somewhat limited | |Very limited |

 | | Depth to bedrock |0.66 | Seepage |0.02 | Depth to water |1.00

 | | Seepage |0.54 | | | |

 | | | | | | |

StDC2: | | | | | | |

 Stephenville--------| 55 |Somewhat limited | |Not limited | |Very limited |

 | | Seepage |0.72 | | | Depth to water |1.00

 | | Depth to bedrock |0.02 | | | |

 | | | | | | |

 Darsil--------------| 30 |Somewhat limited | |Somewhat limited | |Very limited |

 | | Depth to bedrock |0.61 | Seepage |0.02 | Depth to water |1.00

 | | Seepage |0.54 | | | |

 | | | | | | |
322 Soil Survey

Water Management—Continued

________________________________________________________________________________________________________

 | | | |

 Map symbol |Pct.| Pond reservoir areas | Embankments, dikes, and | Aquifer-fed

 and soil name | of | | levees | excavated ponds _____________________________________________________________________________

 |map | Rating class and |Value| Rating class and |Value| Rating class and |Value

 |unit| limiting features | | limiting features | | limiting features | ________________________________________________________________________________________________________

 | | | | | | |

StDE: | | | | | | |

 Stephenville--------| 50 |Somewhat limited | |Not limited | |Very limited |

 | | Seepage |0.72 | | | Depth to water |1.00

 | | Depth to bedrock |0.19 | | | |

 | | Slope |0.02 | | | |

 | | | | | | |

 Darsil--------------| 40 |Somewhat limited | |Somewhat limited | |Very limited |

 | | Depth to bedrock |0.61 | Seepage |0.02 | Depth to water |1.00

 | | Seepage |0.54 | | | |

 | | | | | | |

SteB: | | | | | | |

 Stephenville--------| 94 |Somewhat limited | |Not limited | |Very limited |

 | | Seepage |0.72 | | | Depth to water |1.00

 | | Depth to bedrock |0.04 | | | |

 | | | | | | |

SteC2: | | | | | | |

 Stephenville--------| 92 |Somewhat limited | |Not limited | |Very limited |

 | | Seepage |0.72 | | | Depth to water |1.00

 | | Depth to bedrock |0.13 | | | |

 | | | | | | |

SUND: | | | | | | |

 Stephenville--------| 35 |Somewhat limited | |Not limited | |Very limited |

 | | Seepage |0.72 | | | Depth to water |1.00

 | | Depth to bedrock |0.17 | | | |

 | | | | | | |

 Urban land----------| 30 |Not rated | |Not rated | |Not rated |

 | | | | | | |

 Newalla-------------| 15 |Somewhat limited | |Somewhat limited | |Very limited |

 | | Depth to bedrock |0.01 | Piping |0.03 | Depth to water |1.00

 | | | | | | |

TelB: | | | | | | |

 Teller--------------| 96 |Very limited | |Very limited | |Very limited |

 | | Seepage |1.00 | Piping |1.00 | Depth to water |1.00

 | | | | | | |

TelC2: | | | | | | |

 Teller--------------| 96 |Very limited | |Somewhat limited | |Very limited |

 | | Seepage |1.00 | Piping |0.99 | Depth to water |1.00

 | | | | | | |

TriA: | | | | | | |

 Tribbey-------------| 90 |Very limited | |Very limited | |Very limited |

 | | Seepage |1.00 | Depth to |1.00 | Cutbanks cave |1.00

 | | | | saturated zone | | Depth to water |0.01

 | | | | | | |

URB: | | | | | | |

 Urban land----------|100 |Not rated | |Not rated | |Not rated |

 | | | | | | |

W: | | | | | | |

 Water---------------|100 |Not rated | |Not rated | |Not rated |

 | | | | | | |

YaaA, YahA: | | | | | | |

 Yahola--------------| 87 |Very limited | |Very limited | |Very limited |

 | | Seepage |1.00 | Piping |1.00 | Depth to water |1.00

 | | | | | | |

ZaHC: | | | | | | |

 Zaneis--------------| 55 |Somewhat limited | |Very limited | |Very limited |

 | | Seepage |0.72 | Piping |1.00 | Depth to water |1.00

 | | Depth to bedrock |0.01 | | | |

 | | | | | | |

 Huska---------------| 25 |Not limited | |Very limited | |Very limited |

 | | | | Piping |1.00 | Depth to water |1.00

 | | | | Salinity |0.03 | |
Logan County, Oklahoma 323

Water Management—Continued

________________________________________________________________________________________________________

 | | | |

 Map symbol |Pct.| Pond reservoir areas | Embankments, dikes, and | Aquifer-fed

 and soil name | of | | levees | excavated ponds _____________________________________________________________________________

 |map | Rating class and |Value| Rating class and |Value| Rating class and |Value

 |unit| limiting features | | limiting features | | limiting features | ________________________________________________________________________________________________________

 | | | | | | |

ZanB, ZanC: | | | | | | |

 Zaneis--------------| 87 |Somewhat limited | |Very limited | |Very limited |

 | | Seepage |0.72 | Piping |1.00 | Depth to water |1.00

 | | Depth to bedrock |0.01 | | | |

 | | | | | | |

ZanC2: | | | | | | |

 Zaneis--------------| 87 |Somewhat limited | |Somewhat limited | |Very limited |

 | | Seepage |0.72 | Piping |0.97 | Depth to water |1.00

 | | Depth to bedrock |0.01 | | | |

 | | | | | | | ________________________________________________________________________________________________________
324 Soil Survey

Agricultural Waste Management

Soil properties are important considerations in areas where soils are used as sites

for the treatment and disposal of organic waste and wastewater. Selection of soils with

properties that favor waste management can help to prevent environmental damage.

The tables “Agricultural Waste Management, Part I” and “Agricultural Waste

Management, Part II” show the degree and kind of soil limitations affecting the

treatment of agricultural waste, including municipal and food-processing wastewater

and effluent from lagoons or storage ponds. Municipal wastewater is the waste stream

from a municipality. It contains domestic waste and may contain industrial waste. It

may have received primary or secondary treatment. It is rarely untreated sewage.

Food-processing wastewater results from the preparation of fruits, vegetables, milk,

cheese, and meats for public consumption. In places it is high in content of sodium and

chloride. In the context of these tables, the effluent in lagoons and storage ponds is

from facilities used to treat or store food-processing wastewater or domestic or animal

waste. Domestic and food-processing wastewater is very dilute, and the effluent from

the facilities that treat or store it commonly is very low in content of carbonaceous and

nitrogenous material; the content of nitrogen commonly ranges from 10 to 30

milligrams per liter. The wastewater from animal waste treatment lagoons or storage

ponds, however, has much higher concentrations of these materials, mainly because

the manure has not been diluted as much as the domestic waste. The content of

nitrogen in this wastewater generally ranges from 50 to 2,000 milligrams per liter.

When wastewater is applied, checks should be made to ensure that nitrogen, heavy

metals, and salts are not added in excessive amounts.

The ratings in the tables are for waste management systems that not only dispose

of and treat organic waste or wastewater but also are beneficial to crops (application of

manure and food-processing waste, application of sewage sludge, and disposal of

wastewater by irrigation) and for waste management systems that are designed only

for the purpose of wastewater disposal and treatment (overland flow of wastewater,

rapid infiltration of wastewater, and slow rate treatment of wastewater).

The ratings are both verbal and numerical. Rating class terms indicate the extent to

which the soils are limited by all of the soil features that affect agricultural waste

management. Not limited indicates that the soil has features that are very favorable for

the specified use. Good performance and very low maintenance can be expected.

Somewhat limited indicates that the soil has features that are moderately favorable for

the specified use. The limitations can be overcome or minimized by special planning,

design, or installation. Fair performance and moderate maintenance can be expected.

Very limited indicates that the soil has one or more features that are unfavorable for

the specified use. The limitations generally cannot be overcome without major soil

reclamation, special design, or expensive installation procedures. Poor performance

and high maintenance can be expected.

Numerical ratings in the tables indicate the severity of individual limitations. The

ratings are shown as decimal fractions ranging from 0.01 to 1.00. They indicate

gradations between the point at which a soil feature has the greatest negative impact

on the use (1.00) and the point at which the soil feature is not a limitation (0.00).

Application of manure and food-processing waste not only disposes of waste

material but also can improve crop production by increasing the supply of nutrients in

the soils where the material is applied. Manure is the excrement of livestock and

poultry, and food-processing waste is damaged fruit and vegetables and the peelings,

stems, leaves, pits, and soil particles removed in food preparation. The manure and

food-processing waste are either solid, slurry, or liquid. Their nitrogen content varies. A

high content of nitrogen limits the application rate. Toxic or otherwise dangerous

wastes, such as those mixed with the lye used in food processing, are not considered

in the ratings.
Logan County, Oklahoma 325

The ratings are based on the soil properties that affect absorption, plant growth,

microbial activity, erodibility, the rate at which the waste is applied, and the method by

which the waste is applied. The properties that affect absorption include permeability,

depth to a water table, ponding, the sodium adsorption ratio, depth to bedrock or a

cemented pan, and available water capacity. The properties that affect plant growth

and microbial activity include reaction, the sodium adsorption ratio, salinity, and bulk

density. The wind erodibility group, the soil erodibility factor K, and slope are

considered in estimating the likelihood that wind erosion or water erosion will transport

the waste material from the application site. Stones, cobbles, a water table, ponding,

and flooding can hinder the application of waste. Permanently frozen soils are

unsuitable for waste treatment.

Application of sewage sludge not only disposes of waste material but also can

improve crop production by increasing the supply of nutrients in the soils where the

material is applied. In the context of this table, sewage sludge is the residual product of

the treatment of municipal sewage. The solid component consists mainly of cell mass,

primarily bacteria cells that developed during secondary treatment and have

incorporated soluble organics into their own bodies. The sludge has small amounts of

sand, silt, and other solid debris. The content of nitrogen varies. Some sludge has

constituents that are toxic to plants or hazardous to the food chain, such as heavy

metals and exotic organic compounds, and should be analyzed chemically prior to

use.

The content of water in the sludge ranges from about 98 percent to less than 40

percent. The sludge is considered liquid if it is more than about 90 percent water,

slurry if it is about 50 to 90 percent water, and solid if it is less than about 50 percent

water.

The ratings in the table are based on the soil properties that affect absorption, plant

growth, microbial activity, erodibility, the rate at which the sludge is applied, and the

method by which the sludge is applied. The properties that affect absorption, plant

growth, and microbial activity include permeability, depth to a water table, ponding, the

sodium adsorption ratio, depth to bedrock or a cemented pan, available water capacity,

reaction, salinity, and bulk density. The wind erodibility group, the soil erodibility factor

K, and slope are considered in estimating the likelihood that wind erosion or water

erosion will transport the waste material from the application site. Stones, cobbles, a

water table, ponding, and flooding can hinder the application of sludge. Permanently

frozen soils are unsuitable for waste treatment.

Disposal of wastewater by irrigation not only disposes of municipal wastewater and

wastewater from food-processing plants, lagoons, and storage ponds but also can

improve crop production by increasing the amount of water available to crops. The

ratings in the table are based on the soil properties that affect the design, construction,

management, and performance of the irrigation system. The properties that affect

design and management include the sodium adsorption ratio, depth to a water table,

ponding, available water capacity, permeability, slope, and flooding. The properties that

affect construction include stones, cobbles, depth to bedrock or a cemented pan,

depth to a water table, and ponding. The properties that affect performance include

depth to bedrock or a cemented pan, bulk density, the sodium adsorption ratio, salinity,

reaction, and the cation-exchange capacity, which is used to estimate the capacity of a

soil to adsorb heavy metals. Permanently frozen soils are not suitable for disposal of

wastewater by irrigation.

Overland flow of wastewater is a process in which wastewater is applied to the

upper reaches of sloped land and allowed to flow across vegetated surfaces,

sometimes called terraces, to runoff-collection ditches. The length of the run generally

is 150 to 300 feet. The application rate ranges from 2.5 to 16.0 inches per week. It

commonly exceeds the rate needed for irrigation of cropland. The wastewater leaves

solids and nutrients on the vegetated surfaces as it flows downslope in a thin film.
326 Soil Survey

Most of the water reaches the collection ditch, some is lost through evapotranspiration,

and a small amount may percolate to the ground water.

The ratings in the table are based on the soil properties that affect absorption, plant

growth, microbial activity, and the design and construction of the system. Reaction and

the cation-exchange capacity affect absorption. Reaction, salinity, and the sodium

adsorption ratio affect plant growth and microbial activity. Slope, permeability, depth to

a water table, ponding, flooding, depth to bedrock or a cemented pan, stones, and

cobbles affect design and construction. Permanently frozen soils are unsuitable for

waste treatment.

Rapid infiltration of wastewater is a process in which wastewater applied in a level

basin at a rate of 4 to 120 inches per week percolates through the soil. The

wastewater may eventually reach the ground water. The application rate commonly

exceeds the rate needed for irrigation of cropland. Vegetation is not a necessary part

of the treatment; hence, the basins may or may not be vegetated. The thickness of the

soil material needed for proper treatment of the wastewater is more than 72 inches. As

a result, geologic and hydrologic investigation is needed to ensure proper design and

performance and to determine the risk of ground-water pollution.

The ratings in the table are based on the soil properties that affect the risk of

pollution and the design, construction, and performance of the system. Depth to a

water table, ponding, flooding, and depth to bedrock or a cemented pan affect the risk

of pollution and the design and construction of the system. Slope, stones, and cobbles

also affect design and construction. Permeability and reaction affect performance.

Permanently frozen soils are unsuitable for waste treatment.

Slow rate treatment of wastewater is a process in which wastewater is applied to

land at a rate normally between 0.5 inch and 4.0 inches per week. The application rate

commonly exceeds the rate needed for irrigation of cropland. The applied wastewater

is treated as it moves through the soil. Much of the treated water may percolate to the

ground water, and some enters the atmosphere through evapotranspiration. The

applied water generally is not allowed to run off the surface. Waterlogging is prevented

either through control of the application rate or through the use of tile drains, or both.

The ratings in the table are based on the soil properties that affect absorption, plant

growth, microbial activity, erodibility, and the application of waste. The properties that

affect absorption include the sodium adsorption ratio, depth to a water table, ponding,

available water capacity, permeability, depth to bedrock or a cemented pan, reaction,

the cation-exchange capacity, and slope. Reaction, the sodium adsorption ratio,

salinity, and bulk density affect plant growth and microbial activity. The wind erodibility

group, the soil erodibility factor K, and slope are considered in estimating the likelihood

of wind erosion or water erosion. Stones, cobbles, a water table, ponding, and flooding

can hinder the application of waste. Permanently frozen soils are unsuitable for waste

treatment.
Logan County, Oklahoma 327

Agricultural Waste Management, Part I

(The information in this table indicates the dominant soil condition but does not eliminate the need

 for onsite investigation. The numbers in the value columns range from 0.01 to 1.00. The larger

 the value, the greater the limitation. See text for further explanation of ratings in this table)

________________________________________________________________________________________________________

 |Pct.| Application of | Application | Disposal of

 Map symbol | of | manure and food- | of sewage sludge | wastewater

 and soil name |map | processing waste | | by irrigation _____________________________________________________________________________

 |unit| Rating class and |Value| Rating class and |Value| Rating class and |Value

 | | limiting features | | limiting features | | limiting features | ________________________________________________________________________________________________________

 | | | | | | |

AspA: | | | | | | |

 Ashport-------------| 95 |Somewhat limited | |Very limited | |Somewhat limited |

 | | Flooding |0.60 | Flooding |1.00 | Flooding |0.60

 | | | | | | |

AstA: | | | | | | |

 Ashport-------------| 90 |Very limited | |Very limited | |Very limited |

 | | Flooding |1.00 | Flooding |1.00 | Flooding |1.00

 | | | | | | |

BetA, BetB: | | | | | | |

 Bethany-------------| 93 |Very limited | |Very limited | |Very limited |

 | | Restricted |1.00 | Restricted |1.00 | Restricted |1.00

 | | permeability | | permeability | | permeability |

 | | | | | | |

BocA: | | | | | | |

 Bocox---------------| 94 |Very limited | |Very limited | |Very limited |

 | | Filtering |1.00 | Filtering |1.00 | Filtering |1.00

 | | capacity | | capacity | | capacity |

 | | Depth to |1.00 | Depth to |1.00 | Depth to |1.00

 | | saturated zone | | saturated zone | | saturated zone |

 | | Ponding |1.00 | Ponding |1.00 | Ponding |1.00

 | | Runoff limitation|0.40 | | | |

 | | | | | | |

BtlA: | | | | | | |

 Bathel--------------| 94 |Very limited | |Very limited | |Very limited |

 | | Filtering |1.00 | Filtering |1.00 | Filtering |1.00

 | | capacity | | capacity | | capacity |

 | | Ponding |1.00 | Ponding |1.00 | Ponding |1.00

 | | Depth to |0.68 | Depth to |0.68 | Depth to |0.68

 | | saturated zone | | saturated zone | | saturated zone |

 | | | | | | |

CaaA: | | | | | | |

 Canadian------------| 94 |Somewhat limited | |Somewhat limited | |Somewhat limited |

 | | Filtering |0.01 | Flooding |0.40 | Filtering |0.01

 | | capacity | | Filtering |0.01 | capacity |

 | | | | capacity | | |

 | | | | | | |

CAID: | | | | | | |

 Coyle---------------| 31 |Very limited | |Very limited | |Very limited |

 | | Restricted |1.00 | Low adsorption |1.00 | Restricted |1.00

 | | permeability | | Restricted |1.00 | permeability |

 | | Depth to bedrock |0.06 | permeability | | Too steep for |0.08

 | | Droughty |0.02 | Depth to bedrock |0.06 | surface |

 | | | | Droughty |0.02 | application |

 | | | | | | Depth to bedrock |0.06

 | | | | | | Droughty |0.02

 | | | | | | |

 Ashport-------------| 28 |Very limited | |Very limited | |Very limited |

 | | Flooding |1.00 | Flooding |1.00 | Flooding |1.00

 | | | | | | |
328 Soil Survey

Agricultural Waste Management, Part I—Continued

________________________________________________________________________________________________________

 |Pct.| Application of | Application | Disposal of

 Map symbol | of | manure and food- | of sewage sludge | wastewater

 and soil name |map | processing waste | | by irrigation _____________________________________________________________________________

 |unit| Rating class and |Value| Rating class and |Value| Rating class and |Value

 | | limiting features | | limiting features | | limiting features | ________________________________________________________________________________________________________

 | | | | | | |

CAID: | | | | | | |

 Ironmound-----------| 22 |Very limited | |Very limited | |Very limited |

 | | Depth to bedrock |1.00 | Depth to bedrock |1.00 | Depth to bedrock |1.00

 | | Depth to dense |1.00 | Low adsorption |1.00 | Restricted |1.00

 | | layer | | Restricted |1.00 | permeability |

 | | Restricted |1.00 | permeability | | Droughty |1.00

 | | permeability | | Droughty |1.00 | Too steep for |0.92

 | | Droughty |1.00 | | | surface |

 | | | | | | application |

 | | | | | | Too steep for |0.02

 | | | | | | sprinkler |

 | | | | | | application |

 | | | | | | |

CoIC2: | | | | | | |

 Coyle---------------| 61 |Very limited | |Very limited | |Very limited |

 | | Restricted |1.00 | Low adsorption |1.00 | Restricted |1.00

 | | permeability | | Restricted |1.00 | permeability |

 | | Depth to bedrock |0.03 | permeability | | Too steep for |0.08

 | | | | Depth to bedrock |0.03 | surface |

 | | | | | | application |

 | | | | | | Depth to bedrock |0.03

 | | | | | | |

 Ironmound-----------| 33 |Very limited | |Very limited | |Very limited |

 | | Depth to bedrock |1.00 | Depth to bedrock |1.00 | Depth to bedrock |1.00

 | | Depth to dense |1.00 | Low adsorption |1.00 | Restricted |1.00

 | | layer | | Restricted |1.00 | permeability |

 | | Restricted |1.00 | permeability | | Droughty |1.00

 | | permeability | | Droughty |1.00 | Too steep for |0.08

 | | Droughty |1.00 | | | surface |

 | | | | | | application |

 | | | | | | |

CoUB: | | | | | | |

 Coyle---------------| 55 |Very limited | |Very limited | |Somewhat limited |

 | | Dense layer |1.00 | Low adsorption |1.00 | Depth to bedrock |0.97

 | | Depth to bedrock |0.97 | Depth to bedrock |0.97 | Droughty |0.88

 | | Droughty |0.88 | Droughty |0.88 | |

 | | | | | | |

 Urban land----------| 40 |Not rated | |Not rated | |Not rated |

 | | | | | | |

CoUC: | | | | | | |

 Coyle---------------| 42 |Very limited | |Very limited | |Very limited |

 | | Restricted |1.00 | Low adsorption |1.00 | Restricted |1.00

 | | permeability | | Restricted |1.00 | permeability |

 | | Depth to bedrock |0.54 | permeability | | Depth to bedrock |0.54

 | | Droughty |0.35 | Depth to bedrock |0.54 | Droughty |0.35

 | | | | Droughty |0.35 | |

 | | | | | | |

 Urban land----------| 38 |Not rated | |Not rated | |Not rated |

 | | | | | | |

CoyB: | | | | | | |

 Coyle---------------| 91 |Very limited | |Very limited | |Very limited |

 | | Restricted |1.00 | Low adsorption |1.00 | Restricted |1.00

 | | permeability | | Restricted |1.00 | permeability |

 | | Depth to bedrock |0.35 | permeability | | Depth to bedrock |0.35

 | | Droughty |0.26 | Depth to bedrock |0.35 | Droughty |0.26

 | | | | Droughty |0.26 | |

 | | | | | | |
Logan County, Oklahoma 329

Agricultural Waste Management, Part I—Continued

________________________________________________________________________________________________________

 |Pct.| Application of | Application | Disposal of

 Map symbol | of | manure and food- | of sewage sludge | wastewater

 and soil name |map | processing waste | | by irrigation _____________________________________________________________________________

 |unit| Rating class and |Value| Rating class and |Value| Rating class and |Value

 | | limiting features | | limiting features | | limiting features | ________________________________________________________________________________________________________

 | | | | | | |

CoyC2: | | | | | | |

 Coyle---------------| 91 |Very limited | |Very limited | |Very limited |

 | | Restricted |1.00 | Low adsorption |1.00 | Restricted |1.00

 | | permeability | | Restricted |1.00 | permeability |

 | | Depth to bedrock |0.71 | permeability | | Depth to bedrock |0.71

 | | Droughty |0.60 | Depth to bedrock |0.71 | Droughty |0.60

 | | | | Droughty |0.60 | Too steep for |0.08

 | | | | | | surface |

 | | | | | | application |

 | | | | | | |

CoZC3: | | | | | | |

 Coyle---------------| 70 |Very limited | |Very limited | |Very limited |

 | | Restricted |1.00 | Low adsorption |1.00 | Restricted |1.00

 | | permeability | | Restricted |1.00 | permeability |

 | | Depth to bedrock |0.35 | permeability | | Depth to bedrock |0.35

 | | Droughty |0.26 | Depth to bedrock |0.35 | Droughty |0.26

 | | | | Droughty |0.26 | Too steep for |0.08

 | | | | | | surface |

 | | | | | | application |

 | | | | | | |

 Zaneis--------------| 15 |Very limited | |Very limited | |Very limited |

 | | Restricted |1.00 | Low adsorption |1.00 | Restricted |1.00

 | | permeability | | Restricted |1.00 | permeability |

 | | | | permeability | | Too steep for |0.08

 | | | | | | surface |

 | | | | | | application |

 | | | | | | |

DAM: | | | | | | |

 Dam-----------------|100 |Not rated | |Not rated | |Not rated |

 | | | | | | |

DerB: | | | | | | |

 Derby---------------| 90 |Very limited | |Very limited | |Very limited |

 | | Filtering |1.00 | Filtering |1.00 | Filtering |1.00

 | | capacity | | capacity | | capacity |

 | | Leaching |0.45 | | | |

 | | limitation | | | | |

 | | | | | | |

DerD: | | | | | | |

 Derby---------------| 90 |Very limited | |Very limited | |Very limited |

 | | Filtering |1.00 | Filtering |1.00 | Filtering |1.00

 | | capacity | | capacity | | capacity |

 | | Leaching |0.45 | | | Too steep for |0.68

 | | limitation | | | | surface |

 | | | | | | application |

 | | | | | | |

DerE: | | | | | | |

 Derby---------------| 90 |Very limited | |Very limited | |Very limited |

 | | Filtering |1.00 | Filtering |1.00 | Filtering |1.00

 | | capacity | | capacity | | capacity |

 | | Slope |0.63 | Slope |0.63 | Too steep for |1.00

 | | Leaching |0.45 | | | surface |

 | | limitation | | | | application |

 | | | | | | Too steep for |0.78

 | | | | | | sprinkler |

 | | | | | | application |

 | | | | | | |
330 Soil Survey

Agricultural Waste Management, Part I—Continued

________________________________________________________________________________________________________

 |Pct.| Application of | Application | Disposal of

 Map symbol | of | manure and food- | of sewage sludge | wastewater

 and soil name |map | processing waste | | by irrigation _____________________________________________________________________________

 |unit| Rating class and |Value| Rating class and |Value| Rating class and |Value

 | | limiting features | | limiting features | | limiting features | ________________________________________________________________________________________________________

 | | | | | | |

DiRG: | | | | | | |

 Darsil--------------| 67 |Very limited | |Very limited | |Very limited |

 | | Slope |1.00 | Droughty |1.00 | Droughty |1.00

 | | Filtering |1.00 | Filtering |1.00 | Filtering |1.00

 | | capacity | | capacity | | capacity |

 | | Depth to bedrock |1.00 | Depth to bedrock |1.00 | Depth to bedrock |1.00

 | | Droughty |1.00 | Low adsorption |1.00 | Too steep for |1.00

 | | | | Slope |1.00 | surface |

 | | | | | | application |

 | | | | | | Too steep for |1.00

 | | | | | | sprinkler |

 | | | | | | application |

 | | | | | | |

 Rock outcrop--------| 20 |Not rated | |Not rated | |Not rated |

 | | | | | | |

DouB: | | | | | | |

 Dougherty-----------| 91 |Somewhat limited | |Somewhat limited | |Somewhat limited |

 | | Leaching |0.45 | Too acid |0.42 | Too acid |0.42

 | | limitation | | Filtering |0.01 | Filtering |0.01

 | | Too acid |0.11 | capacity | | capacity |

 | | Filtering |0.01 | | | |

 | | capacity | | | | |

 | | | | | | |

DouD: | | | | | | |

 Dougherty-----------| 91 |Somewhat limited | |Somewhat limited | |Somewhat limited |

 | | Leaching |0.45 | Too acid |0.42 | Too steep for |0.68

 | | limitation | | Filtering |0.01 | surface |

 | | Too acid |0.11 | capacity | | application |

 | | Filtering |0.01 | | | Too acid |0.42

 | | capacity | | | | Filtering |0.01

 | | | | | | capacity |

 | | | | | | |

DUM: | | | | | | |

 Dumps---------------|100 |Not rated | |Not rated | |Not rated |

 | | | | | | |

EasA: | | | | | | |

 Easpur--------------| 93 |Somewhat limited | |Very limited | |Somewhat limited |

 | | Flooding |0.60 | Flooding |1.00 | Flooding |0.60

 | | | | | | |

GadA: | | | | | | |

 Gaddy---------------| 85 |Very limited | |Very limited | |Very limited |

 | | Filtering |1.00 | Filtering |1.00 | Filtering |1.00

 | | capacity | | capacity | | capacity |

 | | Flooding |0.60 | Flooding |1.00 | Flooding |0.60

 | | Leaching |0.45 | | | |

 | | limitation | | | | |

 | | | | | | |

GaGA: | | | | | | |

 Gaddy---------------| 67 |Very limited | |Very limited | |Very limited |

 | | Filtering |1.00 | Filtering |1.00 | Filtering |1.00

 | | capacity | | capacity | | capacity |

 | | Flooding |1.00 | Flooding |1.00 | Flooding |1.00

 | | Leaching |0.45 | | | |

 | | limitation | | | | |

 | | | | | | |

 Gracemore-----------| 23 |Very limited | |Very limited | |Very limited |

 | | Depth to |1.00 | Depth to |1.00 | Depth to |1.00

 | | saturated zone | | saturated zone | | saturated zone |

 | | Flooding |1.00 | Flooding |1.00 | Flooding |1.00

 | | Filtering |0.01 | Filtering |0.01 | Filtering |0.01

 | | capacity | | capacity | | capacity |
Logan County, Oklahoma 331

Agricultural Waste Management, Part I—Continued

________________________________________________________________________________________________________

 |Pct.| Application of | Application | Disposal of

 Map symbol | of | manure and food- | of sewage sludge | wastewater

 and soil name |map | processing waste | | by irrigation _____________________________________________________________________________

 |unit| Rating class and |Value| Rating class and |Value| Rating class and |Value

 | | limiting features | | limiting features | | limiting features | ________________________________________________________________________________________________________

 | | | | | | |

GMGE4: | | | | | | |

 Grainola------------| 40 |Very limited | |Very limited | |Very limited |

 | | Restricted |1.00 | Restricted |1.00 | Restricted |1.00

 | | permeability | | permeability | | permeability |

 | | Runoff limitation|0.40 | Low adsorption |1.00 | Too steep for |1.00

 | | Slope |0.16 | Slope |0.16 | surface |

 | | Depth to bedrock |0.01 | Depth to bedrock |0.01 | application |

 | | Droughty |0.01 | Droughty |0.01 | Too steep for |0.40

 | | | | | | sprinkler |

 | | | | | | application |

 | | | | | | Depth to bedrock |0.01

 | | | | | | Droughty |0.01

 | | | | | | |

 Masham--------------| 30 |Very limited | |Very limited | |Very limited |

 | | Restricted |1.00 | Restricted |1.00 | Restricted |1.00

 | | permeability | | permeability | | permeability |

 | | Depth to bedrock |1.00 | Depth to bedrock |1.00 | Depth to bedrock |1.00

 | | Depth to dense |1.00 | Low adsorption |1.00 | Droughty |1.00

 | | layer | | Droughty |1.00 | Too steep for |1.00

 | | Droughty |1.00 | Slope |0.16 | surface |

 | | Runoff limitation|0.40 | | | application |

 | | | | | | Too steep for |0.40

 | | | | | | sprinkler |

 | | | | | | application |

 | | | | | | |

 Gullied land--------| 20 |Not rated | |Not rated | |Not rated |

 | | | | | | |

GMLG: | | | | | | |

 Grainola------------| 37 |Very limited | |Very limited | |Very limited |

 | | Restricted |1.00 | Restricted |1.00 | Restricted |1.00

 | | permeability | | permeability | | permeability |

 | | Slope |1.00 | Low adsorption |1.00 | Too steep for |1.00

 | | Droughty |0.64 | Slope |1.00 | surface |

 | | Depth to bedrock |0.46 | Droughty |0.64 | application |

 | | Runoff limitation|0.40 | Depth to bedrock |0.46 | Too steep for |1.00

 | | | | | | sprinkler |

 | | | | | | application |

 | | | | | | Droughty |0.64

 | | | | | | Depth to bedrock |0.46

 | | | | | | |

 Masham--------------| 22 |Very limited | |Very limited | |Very limited |

 | | Slope |1.00 | Droughty |1.00 | Droughty |1.00

 | | Restricted |1.00 | Restricted |1.00 | Restricted |1.00

 | | permeability | | permeability | | permeability |

 | | Depth to bedrock |1.00 | Depth to bedrock |1.00 | Depth to bedrock |1.00

 | | Droughty |1.00 | Low adsorption |1.00 | Too steep for |1.00

 | | Depth to dense |1.00 | Slope |1.00 | surface |

 | | layer | | | | application |

 | | | | | | Too steep for |1.00

 | | | | | | sprinkler |

 | | | | | | application |

 | | | | | | |
332 Soil Survey

Agricultural Waste Management, Part I—Continued

________________________________________________________________________________________________________

 |Pct.| Application of | Application | Disposal of

 Map symbol | of | manure and food- | of sewage sludge | wastewater

 and soil name |map | processing waste | | by irrigation _____________________________________________________________________________

 |unit| Rating class and |Value| Rating class and |Value| Rating class and |Value

 | | limiting features | | limiting features | | limiting features | ________________________________________________________________________________________________________

 | | | | | | |

GMLG: | | | | | | |

 Lucien--------------| 21 |Very limited | |Very limited | |Very limited |

 | | Slope |1.00 | Restricted |1.00 | Restricted |1.00

 | | Restricted |1.00 | permeability | | permeability |

 | | permeability | | Depth to bedrock |1.00 | Depth to bedrock |1.00

 | | Depth to bedrock |1.00 | Low adsorption |1.00 | Too steep for |1.00

 | | Depth to dense |1.00 | Slope |1.00 | surface |

 | | layer | | Droughty |1.00 | application |

 | | Droughty |1.00 | | | Too steep for |1.00

 | | | | | | sprinkler |

 | | | | | | application |

 | | | | | | Droughty |1.00

 | | | | | | |

GohC: | | | | | | |

 Goodnight-----------| 92 |Very limited | |Very limited | |Very limited |

 | | Filtering |1.00 | Filtering |1.00 | Filtering |1.00

 | | capacity | | capacity | | capacity |

 | | Leaching |0.45 | Droughty |0.01 | Droughty |0.01

 | | limitation | | | | |

 | | Droughty |0.01 | | | |

 | | | | | | |

GohE: | | | | | | |

 Goodnight-----------| 92 |Very limited | |Very limited | |Very limited |

 | | Filtering |1.00 | Filtering |1.00 | Filtering |1.00

 | | capacity | | capacity | | capacity |

 | | Leaching |0.45 | Slope |0.16 | Too steep for |1.00

 | | limitation | | Droughty |0.01 | surface |

 | | Slope |0.16 | | | application |

 | | Droughty |0.01 | | | Too steep for |0.40

 | | | | | | sprinkler |

 | | | | | | application |

 | | | | | | Droughty |0.01

 | | | | | | |

GooE: | | | | | | |

 Goodnight-----------| 92 |Very limited | |Very limited | |Very limited |

 | | Filtering |1.00 | Filtering |1.00 | Filtering |1.00

 | | capacity | | capacity | | capacity |

 | | Leaching |0.45 | Droughty |0.05 | Too steep for |1.00

 | | limitation | | | | surface |

 | | Droughty |0.05 | | | application |

 | | | | | | Too steep for |0.10

 | | | | | | sprinkler |

 | | | | | | application |

 | | | | | | Droughty |0.05

 | | | | | | |

GooG: | | | | | | |

 Goodnight-----------| 92 |Very limited | |Very limited | |Very limited |

 | | Slope |1.00 | Filtering |1.00 | Filtering |1.00

 | | Filtering |1.00 | capacity | | capacity |

 | | capacity | | Slope |1.00 | Too steep for |1.00

 | | Leaching |0.45 | Droughty |0.07 | surface |

 | | limitation | | | | application |

 | | Droughty |0.07 | | | Too steep for |1.00

 | | | | | | sprinkler |

 | | | | | | application |

 | | | | | | Droughty |0.07

 | | | | | | |
Logan County, Oklahoma 333

Agricultural Waste Management, Part I—Continued

________________________________________________________________________________________________________

 |Pct.| Application of | Application | Disposal of

 Map symbol | of | manure and food- | of sewage sludge | wastewater

 and soil name |map | processing waste | | by irrigation _____________________________________________________________________________

 |unit| Rating class and |Value| Rating class and |Value| Rating class and |Value

 | | limiting features | | limiting features | | limiting features | ________________________________________________________________________________________________________

 | | | | | | |

GraC: | | | | | | |

 Grainola------------| 88 |Very limited | |Very limited | |Very limited |

 | | Restricted |1.00 | Restricted |1.00 | Restricted |1.00

 | | permeability | | permeability | | permeability |

 | | Runoff limitation|0.40 | Low adsorption |1.00 | Depth to bedrock |0.29

 | | Depth to bedrock |0.29 | Depth to bedrock |0.29 | Droughty |0.14

 | | Droughty |0.14 | Droughty |0.14 | Too steep for |0.08

 | | | | | | surface |

 | | | | | | application |

 | | | | | | |

GraD2: | | | | | | |

 Grainola------------| 89 |Very limited | |Very limited | |Very limited |

 | | Restricted |1.00 | Restricted |1.00 | Restricted |1.00

 | | permeability | | permeability | | permeability |

 | | Runoff limitation|0.40 | Low adsorption |1.00 | Too steep for |0.92

 | | Depth to bedrock |0.01 | Depth to bedrock |0.01 | surface |

 | | | | | | application |

 | | | | | | Too steep for |0.02

 | | | | | | sprinkler |

 | | | | | | application |

 | | | | | | Depth to bedrock |0.01

 | | | | | | |

GrHC: | | | | | | |

 Grant---------------| 45 |Very limited | |Very limited | |Very limited |

 | | Restricted |1.00 | Restricted |1.00 | Restricted |1.00

 | | permeability | | permeability | | permeability |

 | | | | Low adsorption |1.00 | Too steep for |0.08

 | | | | | | surface |

 | | | | | | application |

 | | | | | | |

 Huska---------------| 35 |Very limited | |Very limited | |Very limited |

 | | Restricted |1.00 | Restricted |1.00 | Restricted |1.00

 | | permeability | | permeability | | permeability |

 | | Sodium content |1.00 | Sodium content |1.00 | Sodium content |1.00

 | | Droughty |0.51 | Low adsorption |1.00 | Droughty |0.51

 | | Runoff limitation|0.40 | Droughty |0.51 | Salinity |0.01

 | | Salinity |0.35 | Salinity |0.01 | |

 | | | | | | |

GrIE: | | | | | | |

 Grainola------------| 71 |Very limited | |Very limited | |Very limited |

 | | Restricted |1.00 | Low adsorption |1.00 | Restricted |1.00

 | | permeability | | Restricted |1.00 | permeability |

 | | Runoff |0.40 | permeability | | Too steep for |1.00

 | | Depth to bedrock |0.01 | Depth to bedrock |0.01 | surface |

 | | | | | | application |

 | | | | | | Too steep for |0.10

 | | | | | | sprinkler |

 | | | | | | application |

 | | | | | | Depth to bedrock |0.01

 | | | | | | |

 Ironmound-----------| 20 |Very limited | |Very limited | |Very limited |

 | | Depth to bedrock |1.00 | Depth to bedrock |1.00 | Depth to bedrock |1.00

 | | Dense layer |1.00 | Low adsorption |1.00 | Droughty |1.00

 | | Droughty |1.00 | Droughty |1.00 | Too steep for |1.00

 | | Filtering |0.01 | Filtering |0.01 | surface |

 | | capacity | | capacity | | application |

 | | | | | | Too steep for |0.10

 | | | | | | sprinkler |

 | | | | | | application |

 | | | | | | Filtering |0.01

 | | | | | | capacity |
334 Soil Survey

Agricultural Waste Management, Part I—Continued

________________________________________________________________________________________________________

 |Pct.| Application of | Application | Disposal of

 Map symbol | of | manure and food- | of sewage sludge | wastewater

 and soil name |map | processing waste | | by irrigation _____________________________________________________________________________

 |unit| Rating class and |Value| Rating class and |Value| Rating class and |Value

 | | limiting features | | limiting features | | limiting features | ________________________________________________________________________________________________________

 | | | | | | |

GrLE: | | | | | | |

 Grainola------------| 55 |Very limited | |Very limited | |Very limited |

 | | Restricted |1.00 | Restricted |1.00 | Restricted |1.00

 | | permeability | | permeability | | permeability |

 | | Depth to bedrock |0.74 | Low adsorption |1.00 | Too steep for |1.00

 | | Droughty |0.52 | Depth to bedrock |0.74 | surface |

 | | Runoff limitation|0.40 | Droughty |0.52 | application |

 | | Slope |0.04 | Slope |0.04 | Depth to bedrock |0.74

 | | | | | | Droughty |0.52

 | | | | | | Too steep for |0.22

 | | | | | | sprinkler |

 | | | | | | application |

 | | | | | | |

 Lucien--------------| 26 |Very limited | |Very limited | |Very limited |

 | | Restricted |1.00 | Droughty |1.00 | Droughty |1.00

 | | permeability | | Restricted |1.00 | Restricted |1.00

 | | Depth to bedrock |1.00 | permeability | | permeability |

 | | Droughty |1.00 | Depth to bedrock |1.00 | Depth to bedrock |1.00

 | | Depth to dense |1.00 | Low adsorption |1.00 | Too steep for |1.00

 | | layer | | Slope |0.04 | surface |

 | | Slope |0.04 | | | application |

 | | | | | | Too steep for |0.22

 | | | | | | sprinkler |

 | | | | | | application |

 | | | | | | |

HaGD4: | | | | | | |

 Harrah--------------| 70 |Somewhat limited | |Somewhat limited | |Somewhat limited |

 | | Too acid |0.08 | Too acid |0.31 | Too steep for |0.92

 | | Filtering |0.01 | Filtering |0.01 | surface |

 | | capacity | | capacity | | application |

 | | | | | | Too acid |0.31

 | | | | | | Too steep for |0.02

 | | | | | | sprinkler |

 | | | | | | application |

 | | | | | | Filtering |0.01

 | | | | | | capacity |

 | | | | | | |

 Gullied land--------| 15 |Not rated | |Not rated | |Not rated |

 | | | | | | |

HarC, HarC2: | | | | | | |

 Harrah--------------| 91 |Somewhat limited | |Somewhat limited | |Somewhat limited |

 | | Too acid |0.08 | Too acid |0.31 | Too acid |0.31

 | | Filtering |0.01 | Filtering |0.01 | Too steep for |0.08

 | | capacity | | capacity | | surface |

 | | | | | | application |

 | | | | | | Filtering |0.01

 | | | | | | capacity |

 | | | | | | |

HarG: | | | | | | |

 Harrah--------------| 86 |Very limited | |Very limited | |Very limited |

 | | Slope |1.00 | Slope |1.00 | Too steep for |1.00

 | | Too acid |0.08 | Too acid |0.31 | surface |

 | | Filtering |0.01 | Filtering |0.01 | application |

 | | capacity | | capacity | | Too steep for |1.00

 | | | | | | sprinkler |

 | | | | | | application |

 | | | | | | Too acid |0.31

 | | | | | | Filtering |0.01

 | | | | | | capacity |

 | | | | | | |
Logan County, Oklahoma 335

Agricultural Waste Management, Part I—Continued

________________________________________________________________________________________________________

 |Pct.| Application of | Application | Disposal of

 Map symbol | of | manure and food- | of sewage sludge | wastewater

 and soil name |map | processing waste | | by irrigation _____________________________________________________________________________

 |unit| Rating class and |Value| Rating class and |Value| Rating class and |Value

 | | limiting features | | limiting features | | limiting features | ________________________________________________________________________________________________________

 | | | | | | |

HawB: | | | | | | |

 Hawley--------------| 94 |Very limited | |Very limited | |Very limited |

 | | Filtering |1.00 | Filtering |1.00 | Filtering |1.00

 | | capacity | | capacity | | capacity |

 | | | | Flooding |0.40 | |

 | | | | | | |

ICGD3: | | | | | | |

 Ironmound-----------| 40 |Very limited | |Very limited | |Very limited |

 | | Depth to bedrock |1.00 | Droughty |1.00 | Droughty |1.00

 | | Droughty |1.00 | Depth to bedrock |1.00 | Depth to bedrock |1.00

 | | Depth to dense |1.00 | Low adsorption |1.00 | Restricted |1.00

 | | layer | | Restricted |1.00 | permeability |

 | | Restricted |1.00 | permeability | | Too steep for |0.92

 | | permeability | | Filtering |0.01 | surface |

 | | Filtering |0.01 | capacity | | application |

 | | capacity | | | | Too steep for |0.02

 | | | | | | sprinkler |

 | | | | | | application |

 | | | | | | |

 Coyle---------------| 30 |Very limited | |Very limited | |Very limited |

 | | Restricted |1.00 | Low adsorption |1.00 | Restricted |1.00

 | | permeability | | Restricted |1.00 | permeability |

 | | Depth to bedrock |0.10 | permeability | | Too steep for |0.92

 | | Droughty |0.04 | Depth to bedrock |0.10 | surface |

 | | | | Droughty |0.04 | application |

 | | | | | | Depth to bedrock |0.10

 | | | | | | Droughty |0.04

 | | | | | | Too steep for |0.02

 | | | | | | sprinkler |

 | | | | | | application |

 | | | | | | |

 Grainola------------| 15 |Very limited | |Very limited | |Very limited |

 | | Restricted |1.00 | Low adsorption |1.00 | Restricted |1.00

 | | permeability | | Restricted |1.00 | permeability |

 | | Runoff limitation|0.40 | permeability | | Too steep for |0.92

 | | Droughty |0.30 | Droughty |0.30 | surface |

 | | Depth to bedrock |0.16 | Depth to bedrock |0.16 | application |

 | | | | | | Droughty |0.30

 | | | | | | Depth to bedrock |0.16

 | | | | | | Too steep for |0.02

 | | | | | | sprinkler |

 | | | | | | application |

 | | | | | | |

IrCE: | | | | | | |

 Ironmound-----------| 53 |Very limited | |Very limited | |Very limited |

 | | Depth to bedrock |1.00 | Droughty |1.00 | Droughty |1.00

 | | Droughty |1.00 | Depth to bedrock |1.00 | Depth to bedrock |1.00

 | | Depth to dense |1.00 | Low adsorption |1.00 | Restricted |1.00

 | | layer | | Restricted |1.00 | permeability |

 | | Restricted |1.00 | permeability | | Too steep for |1.00

 | | permeability | | Slope |0.16 | surface |

 | | Slope |0.16 | | | application |

 | | | | | | Too steep for |0.40

 | | | | | | sprinkler |

 | | | | | | application |

 | | | | | | |
336 Soil Survey

Agricultural Waste Management, Part I—Continued

________________________________________________________________________________________________________

 |Pct.| Application of | Application | Disposal of

 Map symbol | of | manure and food- | of sewage sludge | wastewater

 and soil name |map | processing waste | | by irrigation _____________________________________________________________________________

 |unit| Rating class and |Value| Rating class and |Value| Rating class and |Value

 | | limiting features | | limiting features | | limiting features | ________________________________________________________________________________________________________

 | | | | | | |

IrCE: | | | | | | |

 Coyle---------------| 22 |Very limited | |Very limited | |Very limited |

 | | Restricted |1.00 | Low adsorption |1.00 | Too steep for |1.00

 | | permeability | | Restricted |1.00 | surface |

 | | Depth to bedrock |0.80 | permeability | | application |

 | | Droughty |0.57 | Depth to bedrock |0.80 | Restricted |1.00

 | | Slope |0.16 | Droughty |0.57 | permeability |

 | | | | Slope |0.16 | Depth to bedrock |0.80

 | | | | | | Droughty |0.57

 | | | | | | Too steep for |0.40

 | | | | | | sprinkler |

 | | | | | | application |

 | | | | | | |

IroC2: | | | | | | |

 Ironmound-----------| 90 |Very limited | |Very limited | |Very limited |

 | | Depth to bedrock |1.00 | Depth to bedrock |1.00 | Depth to bedrock |1.00

 | | Depth to dense |1.00 | Low adsorption |1.00 | Droughty |1.00

 | | layer | | Droughty |1.00 | Restricted |1.00

 | | Restricted |1.00 | Restricted |1.00 | permeability |

 | | permeability | | permeability | | Too steep for |0.08

 | | Droughty |1.00 | | | surface |

 | | | | | | application |

 | | | | | | |

KgfB: | | | | | | |

 Kingfisher----------| 90 |Very limited | |Very limited | |Very limited |

 | | Restricted |1.00 | Low adsorption |1.00 | Restricted |1.00

 | | permeability | | Restricted |1.00 | permeability |

 | | Depth to bedrock |0.01 | permeability | | Depth to bedrock |0.01

 | | | | Depth to bedrock |0.01 | |

 | | | | | | |

KinC2: | | | | | | |

 Kingfisher----------| 90 |Very limited | |Very limited | |Very limited |

 | | Restricted |1.00 | Low adsorption |1.00 | Restricted |1.00

 | | permeability | | Restricted |1.00 | permeability |

 | | Depth to bedrock |0.71 | permeability | | Depth to bedrock |0.71

 | | Droughty |0.18 | Depth to bedrock |0.71 | Droughty |0.18

 | | | | Droughty |0.18 | Too steep for |0.08

 | | | | | | surface |

 | | | | | | application |

 | | | | | | |

KonB: | | | | | | |

 Konawa--------------| 96 |Somewhat limited | |Somewhat limited | |Somewhat limited |

 | | Too acid |0.11 | Too acid |0.42 | Too acid |0.42

 | | Filtering |0.01 | Filtering |0.01 | Filtering |0.01

 | | capacity | | capacity | | capacity |

 | | | | | | |

KonD2: | | | | | | |

 Konawa--------------| 96 |Somewhat limited | |Somewhat limited | |Somewhat limited |

 | | Too acid |0.11 | Too acid |0.42 | Too steep for |0.68

 | | Filtering |0.01 | Filtering |0.01 | surface |

 | | capacity | | capacity | | application |

 | | | | | | Too acid |0.42

 | | | | | | Filtering |0.01

 | | | | | | capacity |

 | | | | | | |
Logan County, Oklahoma 337

Agricultural Waste Management, Part I—Continued

________________________________________________________________________________________________________

 |Pct.| Application of | Application | Disposal of

 Map symbol | of | manure and food- | of sewage sludge | wastewater

 and soil name |map | processing waste | | by irrigation _____________________________________________________________________________

 |unit| Rating class and |Value| Rating class and |Value| Rating class and |Value

 | | limiting features | | limiting features | | limiting features | ________________________________________________________________________________________________________

 | | | | | | |

KrdA, KrkB: | | | | | | |

 Kirkland------------| 90 |Very limited | |Very limited | |Very limited |

 | | Restricted |1.00 | Restricted |1.00 | Restricted |1.00

 | | permeability | | permeability | | permeability |

 | | Runoff limitation|0.40 | Low adsorption |1.00 | Sodium content |0.32

 | | Sodium content |0.32 | Sodium content |0.32 | |

 | | | | | | |

LarA: | | | | | | |

 Lawrie--------------| 94 |Somewhat limited | |Very limited | |Somewhat limited |

 | | Flooding |0.60 | Flooding |1.00 | Flooding |0.60

 | | | | | | |

LawA: | | | | | | |

 Lawrie--------------| 86 |Not limited | |Somewhat limited | |Not limited |

 | | | | Flooding |0.40 | |

 | | | | | | |

LerA: | | | | | | |

 Lebron--------------| 80 |Very limited | |Very limited | |Very limited |

 | | Filtering |1.00 | Filtering |1.00 | Filtering |1.00

 | | capacity | | capacity | | capacity |

 | | Restricted |1.00 | Restricted |1.00 | Restricted |1.00

 | | permeability | | permeability | | permeability |

 | | Depth to |1.00 | Depth to |1.00 | Depth to |1.00

 | | saturated zone | | saturated zone | | saturated zone |

 | | Ponding |1.00 | Flooding |1.00 | Ponding |1.00

 | | Flooding |0.60 | Ponding |1.00 | Flooding |0.60

 | | | | | | |

LitB: | | | | | | |

 Littleaxe-----------| 80 |Somewhat limited | |Very limited | |Somewhat limited |

 | | Too acid |0.02 | Low adsorption |1.00 | Too acid |0.07

 | | Filtering |0.01 | Too acid |0.07 | Filtering |0.01

 | | capacity | | Filtering |0.01 | capacity |

 | | | | capacity | | |

 | | | | | | |

LitC2: | | | | | | |

 Littleaxe-----------| 80 |Somewhat limited | |Very limited | |Somewhat limited |

 | | Too acid |0.02 | Low adsorption |1.00 | Too steep for |0.08

 | | Filtering |0.01 | Too acid |0.07 | surface |

 | | capacity | | Filtering |0.01 | application |

 | | | | capacity | | Too acid |0.07

 | | | | | | Filtering |0.01

 | | | | | | capacity |

 | | | | | | |

M-W: | | | | | | |

 Miscellaneous water-|100 |Not rated | |Not rated | |Not rated |

 | | | | | | |

MaID: | | | | | | |

 Masham--------------| 52 |Very limited | |Very limited | |Very limited |

 | | Restricted |1.00 | Restricted |1.00 | Restricted |1.00

 | | permeability | | permeability | | permeability |

 | | Depth to bedrock |1.00 | Depth to bedrock |1.00 | Depth to bedrock |1.00

 | | Depth to dense |1.00 | Low adsorption |1.00 | Droughty |1.00

 | | layer | | Droughty |1.00 | Too steep for |1.00

 | | Droughty |1.00 | Slope |0.37 | surface |

 | | Runoff limitation|0.40 | | | application |

 | | | | | | Too steep for |0.60

 | | | | | | sprinkler |

 | | | | | | application |

 | | | | | | |
338 Soil Survey

Agricultural Waste Management, Part I—Continued

________________________________________________________________________________________________________

 |Pct.| Application of | Application | Disposal of

 Map symbol | of | manure and food- | of sewage sludge | wastewater

 and soil name |map | processing waste | | by irrigation _____________________________________________________________________________

 |unit| Rating class and |Value| Rating class and |Value| Rating class and |Value

 | | limiting features | | limiting features | | limiting features | ________________________________________________________________________________________________________

 | | | | | | |

MaID: | | | | | | |

 Ironmound-----------| 27 |Very limited | |Very limited | |Very limited |

 | | Depth to bedrock |1.00 | Droughty |1.00 | Droughty |1.00

 | | Droughty |1.00 | Depth to bedrock |1.00 | Depth to bedrock |1.00

 | | Depth to dense |1.00 | Low adsorption |1.00 | Restricted |1.00

 | | layer | | Restricted |1.00 | permeability |

 | | Restricted |1.00 | permeability | | Too steep for |1.00

 | | permeability | | Slope |0.16 | surface |

 | | Slope |0.16 | | | application |

 | | | | | | Too steep for |0.40

 | | | | | | sprinkler |

 | | | | | | application |

 | | | | | | |

MaIG: | | | | | | |

 Masham--------------| 73 |Very limited | |Very limited | |Very limited |

 | | Slope |1.00 | Droughty |1.00 | Droughty |1.00

 | | Restricted |1.00 | Restricted |1.00 | Restricted |1.00

 | | permeability | | permeability | | permeability |

 | | Depth to bedrock |1.00 | Depth to bedrock |1.00 | Depth to bedrock |1.00

 | | Droughty |1.00 | Low adsorption |1.00 | Too steep for |1.00

 | | Depth to dense |1.00 | Slope |1.00 | surface |

 | | layer | | | | application |

 | | | | | | Too steep for |1.00

 | | | | | | sprinkler |

 | | | | | | application |

 | | | | | | |

 Ironmound-----------| 17 |Very limited | |Very limited | |Very limited |

 | | Slope |1.00 | Depth to bedrock |1.00 | Depth to bedrock |1.00

 | | Depth to bedrock |1.00 | Low adsorption |1.00 | Too steep for |1.00

 | | Depth to dense |1.00 | Slope |1.00 | surface |

 | | layer | | Droughty |1.00 | application |

 | | Restricted |1.00 | Restricted |1.00 | Too steep for |1.00

 | | permeability | | permeability | | sprinkler |

 | | Droughty |1.00 | | | application |

 | | | | | | Droughty |1.00

 | | | | | | Restricted |1.00

 | | | | | | permeability |

 | | | | | | |

MinB: | | | | | | |

 Minco---------------| 91 |Not limited | |Not limited | |Not limited |

 | | | | | | |

MinC: | | | | | | |

 Minco---------------| 91 |Not limited | |Not limited | |Somewhat limited |

 | | | | | | Too steep for |0.08

 | | | | | | surface |

 | | | | | | application |

 | | | | | | |

MinD: | | | | | | |

 Minco---------------| 91 |Not limited | |Not limited | |Somewhat limited |

 | | | | | | Too steep for |0.92

 | | | | | | surface |

 | | | | | | application |

 | | | | | | Too steep for |0.02

 | | | | | | sprinkler |

 | | | | | | application |

 | | | | | | |
Logan County, Oklahoma 339

Agricultural Waste Management, Part I—Continued

________________________________________________________________________________________________________

 |Pct.| Application of | Application | Disposal of

 Map symbol | of | manure and food- | of sewage sludge | wastewater

 and soil name |map | processing waste | | by irrigation _____________________________________________________________________________

 |unit| Rating class and |Value| Rating class and |Value| Rating class and |Value

 | | limiting features | | limiting features | | limiting features | ________________________________________________________________________________________________________

 | | | | | | |

MinF: | | | | | | |

 Minco---------------| 91 |Very limited | |Very limited | |Very limited |

 | | Slope |1.00 | Slope |1.00 | Too steep for |1.00

 | | | | | | surface |

 | | | | | | application |

 | | | | | | Too steep for |1.00

 | | | | | | sprinkler |

 | | | | | | application |

 | | | | | | |

MllA: | | | | | | |

 Miller--------------| 95 |Very limited | |Very limited | |Very limited |

 | | Restricted |1.00 | Restricted |1.00 | Restricted |1.00

 | | permeability | | permeability | | permeability |

 | | Flooding |0.60 | Flooding |1.00 | Flooding |0.60

 | | Runoff limitation|0.40 | | | |

 | | | | | | |

MulC: | | | | | | |

 Mulhall-------------| 88 |Very limited | |Very limited | |Very limited |

 | | Restricted |1.00 | Low adsorption |1.00 | Restricted |1.00

 | | permeability | | Restricted |1.00 | permeability |

 | | | | permeability | | Too steep for |0.08

 | | | | | | surface |

 | | | | | | application |

 | | | | | | |

MulC2: | | | | | | |

 Mulhall-------------| 88 |Not limited | |Very limited | |Somewhat limited |

 | | | | Low adsorption |1.00 | Too steep for |0.08

 | | | | | | surface |

 | | | | | | application |

 | | | | | | |

NavA, NavB: | | | | | | |

 Navina--------------| 96 |Not limited | |Not limited | |Not limited |

 | | | | | | |

NeGD4: | | | | | | |

 Newalla-------------| 75 |Very limited | |Very limited | |Very limited |

 | | Restricted |1.00 | Restricted |1.00 | Restricted |1.00

 | | permeability | | permeability | | permeability |

 | | Runoff limitation|0.40 | Low adsorption |1.00 | Too steep for |0.32

 | | Too acid |0.08 | Too acid |0.31 | surface |

 | | | | | | application |

 | | | | | | Too acid |0.31

 | | | | | | |

 Gullied land--------| 15 |Not rated | |Not rated | |Not rated |

 | | | | | | |

NewB: | | | | | | |

 Newalla-------------| 90 |Very limited | |Very limited | |Very limited |

 | | Restricted |1.00 | Restricted |1.00 | Restricted |1.00

 | | permeability | | permeability | | permeability |

 | | Runoff limitation|0.40 | Low adsorption |1.00 | Too acid |0.31

 | | Too acid |0.08 | Too acid |0.31 | |

 | | | | | | |

NorA: | | | | | | |

 Norge---------------| 93 |Somewhat limited | |Somewhat limited | |Somewhat limited |

 | | Restricted |0.41 | Restricted |0.31 | Restricted |0.31

 | | permeability | | permeability | | permeability |

 | | | | | | |

NorB: | | | | | | |

 Norge---------------| 90 |Somewhat limited | |Somewhat limited | |Somewhat limited |

 | | Restricted |0.41 | Restricted |0.31 | Restricted |0.31

 | | permeability | | permeability | | permeability |

 | | | | | | |
340 Soil Survey

Agricultural Waste Management, Part I—Continued

________________________________________________________________________________________________________

 |Pct.| Application of | Application | Disposal of

 Map symbol | of | manure and food- | of sewage sludge | wastewater

 and soil name |map | processing waste | | by irrigation _____________________________________________________________________________

 |unit| Rating class and |Value| Rating class and |Value| Rating class and |Value

 | | limiting features | | limiting features | | limiting features | ________________________________________________________________________________________________________

 | | | | | | |

NorC2: | | | | | | |

 Norge---------------| 88 |Somewhat limited | |Somewhat limited | |Somewhat limited |

 | | Restricted |0.41 | Restricted |0.31 | Restricted |0.31

 | | permeability | | permeability | | permeability |

 | | | | | | Too steep for |0.08

 | | | | | | surface |

 | | | | | | application |

 | | | | | | |

OWHD: | | | | | | |

 Oil waste land------| 50 |Not rated | |Not rated | |Not rated |

 | | | | | | |

 Huska---------------| 30 |Very limited | |Very limited | |Very limited |

 | | Restricted |1.00 | Restricted |1.00 | Restricted |1.00

 | | permeability | | permeability | | permeability |

 | | Sodium content |1.00 | Sodium content |1.00 | Sodium content |1.00

 | | Runoff limitation|0.40 | Low adsorption |1.00 | Droughty |0.09

 | | Salinity |0.35 | Droughty |0.09 | Salinity |0.01

 | | Droughty |0.09 | Salinity |0.01 | |

 | | | | | | |

PieB: | | | | | | |

 Piedmont------------| 92 |Very limited | |Very limited | |Very limited |

 | | Restricted |1.00 | Restricted |1.00 | Restricted |1.00

 | | permeability | | permeability | | permeability |

 | | Runoff limitation|0.40 | Low adsorption |1.00 | Depth to bedrock |0.29

 | | Depth to bedrock |0.29 | Depth to bedrock |0.29 | Droughty |0.07

 | | Droughty |0.07 | Droughty |0.07 | |

 | | | | | | |

PieC2: | | | | | | |

 Piedmont------------| 93 |Very limited | |Very limited | |Very limited |

 | | Restricted |1.00 | Restricted |1.00 | Restricted |1.00

 | | permeability | | permeability | | permeability |

 | | Depth to bedrock |0.71 | Low adsorption |1.00 | Depth to bedrock |0.71

 | | Droughty |0.69 | Depth to bedrock |0.71 | Droughty |0.69

 | | Runoff limitation|0.40 | Droughty |0.69 | Too steep for |0.08

 | | | | | | surface |

 | | | | | | application |

 | | | | | | |

PIT: | | | | | | |

 Pits----------------|100 |Not rated | |Not rated | |Not rated |

 | | | | | | |

PukA: | | | | | | |

 Pulaski-------------| 85 |Very limited | |Very limited | |Very limited |

 | | Flooding |1.00 | Flooding |1.00 | Flooding |1.00

 | | Filtering |0.01 | Filtering |0.01 | Filtering |0.01

 | | capacity | | capacity | | capacity |

 | | | | | | |

PulA: | | | | | | |

 Pulaski-------------| 85 |Somewhat limited | |Very limited | |Somewhat limited |

 | | Flooding |0.60 | Flooding |1.00 | Flooding |0.60

 | | Filtering |0.01 | Filtering |0.01 | Filtering |0.01

 | | capacity | | capacity | | capacity |

 | | | | | | |

RenB: | | | | | | |

 Renfrow-------------| 89 |Very limited | |Very limited | |Very limited |

 | | Restricted |1.00 | Restricted |1.00 | Restricted |1.00

 | | permeability | | permeability | | permeability |

 | | Runoff limitation|0.40 | Low adsorption |1.00 | |

 | | | | | | |
Logan County, Oklahoma 341

Agricultural Waste Management, Part I—Continued

________________________________________________________________________________________________________

 |Pct.| Application of | Application | Disposal of

 Map symbol | of | manure and food- | of sewage sludge | wastewater

 and soil name |map | processing waste | | by irrigation _____________________________________________________________________________

 |unit| Rating class and |Value| Rating class and |Value| Rating class and |Value

 | | limiting features | | limiting features | | limiting features | ________________________________________________________________________________________________________

 | | | | | | |

RenC: | | | | | | |

 Renfrow-------------| 89 |Very limited | |Very limited | |Very limited |

 | | Restricted |1.00 | Restricted |1.00 | Restricted |1.00

 | | permeability | | permeability | | permeability |

 | | Runoff limitation|0.40 | Low adsorption |1.00 | Too steep for |0.08

 | | | | | | surface |

 | | | | | | application |

 | | | | | | |

RewC2: | | | | | | |

 Renfrow-------------| 84 |Very limited | |Very limited | |Very limited |

 | | Restricted |1.00 | Restricted |1.00 | Restricted |1.00

 | | permeability | | permeability | | permeability |

 | | Runoff limitation|0.40 | Low adsorption |1.00 | Too steep for |0.08

 | | | | | | surface |

 | | | | | | application |

 | | | | | | |

RinB: | | | | | | |

 Renthin-------------| 81 |Very limited | |Very limited | |Very limited |

 | | Restricted |1.00 | Restricted |1.00 | Restricted |1.00

 | | permeability | | permeability | | permeability |

 | | Runoff limitation|0.40 | Low adsorption |1.00 | |

 | | | | | | |

RnnC2: | | | | | | |

 Renthin-------------| 80 |Very limited | |Very limited | |Very limited |

 | | Restricted |1.00 | Restricted |1.00 | Restricted |1.00

 | | permeability | | permeability | | permeability |

 | | Runoff limitation|0.40 | Low adsorption |1.00 | Too steep for |0.08

 | | | | | | surface |

 | | | | | | application |

 | | | | | | |

SDGD4: | | | | | | |

 Stephenville--------| 32 |Very limited | |Very limited | |Somewhat limited |

 | | Depth to dense |1.00 | Low adsorption |1.00 | Depth to bedrock |0.97

 | | layer | | Depth to bedrock |0.97 | Droughty |0.92

 | | Depth to bedrock |0.97 | Droughty |0.92 | Too steep for |0.92

 | | Droughty |0.92 | Too acid |0.42 | surface |

 | | Restricted |0.41 | Restricted |0.31 | application |

 | | permeability | | permeability | | Too acid |0.42

 | | Too acid |0.11 | | | Restricted |0.31

 | | | | | | permeability |

 | | | | | | |

 Darsil--------------| 31 |Very limited | |Very limited | |Very limited |

 | | Filtering |1.00 | Droughty |1.00 | Droughty |1.00

 | | capacity | | Filtering |1.00 | Filtering |1.00

 | | Depth to bedrock |1.00 | capacity | | capacity |

 | | Droughty |1.00 | Depth to bedrock |1.00 | Depth to bedrock |1.00

 | | | | Low adsorption |1.00 | Too steep for |0.92

 | | | | | | surface |

 | | | | | | application |

 | | | | | | Too steep for |0.02

 | | | | | | sprinkler |

 | | | | | | application |

 | | | | | | |

 Gullied land--------| 23 |Not rated | |Not rated | |Not rated |

 | | | | | | |
342 Soil Survey

Agricultural Waste Management, Part I—Continued

________________________________________________________________________________________________________

 |Pct.| Application of | Application | Disposal of

 Map symbol | of | manure and food- | of sewage sludge | wastewater

 and soil name |map | processing waste | | by irrigation _____________________________________________________________________________

 |unit| Rating class and |Value| Rating class and |Value| Rating class and |Value

 | | limiting features | | limiting features | | limiting features | ________________________________________________________________________________________________________

 | | | | | | |

SDND: | | | | | | |

 Stephenville--------| 44 |Somewhat limited | |Very limited | |Somewhat limited |

 | | Depth to bedrock |0.65 | Low adsorption |1.00 | Too steep for |0.92

 | | Droughty |0.59 | Depth to bedrock |0.65 | surface |

 | | Restricted |0.41 | Droughty |0.59 | application |

 | | permeability | | Too acid |0.42 | Depth to bedrock |0.65

 | | Too acid |0.11 | Restricted |0.31 | Droughty |0.59

 | | Filtering |0.01 | permeability | | Too acid |0.42

 | | capacity | | | | Restricted |0.31

 | | | | | | permeability |

 | | | | | | |

 Darsil--------------| 29 |Very limited | |Very limited | |Very limited |

 | | Filtering |1.00 | Droughty |1.00 | Droughty |1.00

 | | capacity | | Filtering |1.00 | Filtering |1.00

 | | Depth to bedrock |1.00 | capacity | | capacity |

 | | Droughty |1.00 | Depth to bedrock |1.00 | Depth to bedrock |1.00

 | | | | Low adsorption |1.00 | Too steep for |0.92

 | | | | | | surface |

 | | | | | | application |

 | | | | | | Too steep for |0.02

 | | | | | | sprinkler |

 | | | | | | application |

 | | | | | | |

 Newalla-------------| 21 |Very limited | |Very limited | |Very limited |

 | | Restricted |1.00 | Restricted |1.00 | Restricted |1.00

 | | permeability | | permeability | | permeability |

 | | Runoff limitation|0.40 | Low adsorption |1.00 | Too steep for |0.92

 | | Too acid |0.08 | Too acid |0.31 | surface |

 | | | | | | application |

 | | | | | | Too acid |0.31

 | | | | | | Too steep for |0.02

 | | | | | | sprinkler |

 | | | | | | application |

 | | | | | | |

SDND2: | | | | | | |

 Stephenville--------| 44 |Somewhat limited | |Very limited | |Somewhat limited |

 | | Depth to bedrock |0.46 | Low adsorption |1.00 | Too steep for |0.92

 | | Restricted |0.41 | Depth to bedrock |0.46 | surface |

 | | permeability | | Too acid |0.42 | application |

 | | Droughty |0.29 | Restricted |0.31 | Depth to bedrock |0.46

 | | Too acid |0.11 | permeability | | Too acid |0.42

 | | Filtering |0.01 | Droughty |0.29 | Restricted |0.31

 | | capacity | | | | permeability |

 | | | | | | Droughty |0.29

 | | | | | | |

 Darsil--------------| 33 |Very limited | |Very limited | |Very limited |

 | | Filtering |1.00 | Droughty |1.00 | Droughty |1.00

 | | capacity | | Filtering |1.00 | Filtering |1.00

 | | Depth to bedrock |1.00 | capacity | | capacity |

 | | Droughty |1.00 | Depth to bedrock |1.00 | Depth to bedrock |1.00

 | | | | Low adsorption |1.00 | Too steep for |0.92

 | | | | | | surface |

 | | | | | | application |

 | | | | | | Too steep for |0.02

 | | | | | | sprinkler |

 | | | | | | application |

 | | | | | | |
Logan County, Oklahoma 343

Agricultural Waste Management, Part I—Continued

________________________________________________________________________________________________________

 |Pct.| Application of | Application | Disposal of

 Map symbol | of | manure and food- | of sewage sludge | wastewater

 and soil name |map | processing waste | | by irrigation _____________________________________________________________________________

 |unit| Rating class and |Value| Rating class and |Value| Rating class and |Value

 | | limiting features | | limiting features | | limiting features | ________________________________________________________________________________________________________

 | | | | | | |

SDND2: | | | | | | |

 Newalla-------------| 20 |Very limited | |Very limited | |Very limited |

 | | Restricted |1.00 | Restricted |1.00 | Restricted |1.00

 | | permeability | | permeability | | permeability |

 | | Runoff limitation|0.40 | Low adsorption |1.00 | Too steep for |0.92

 | | Too acid |0.08 | Too acid |0.31 | surface |

 | | | | | | application |

 | | | | | | Too acid |0.31

 | | | | | | Too steep for |0.02

 | | | | | | sprinkler |

 | | | | | | application |

 | | | | | | |

SlaB: | | | | | | |

 Slaughterville------| 95 |Somewhat limited | |Somewhat limited | |Somewhat limited |

 | | Filtering |0.01 | Filtering |0.01 | Filtering |0.01

 | | capacity | | capacity | | capacity |

 | | | | | | |

SlaD: | | | | | | |

 Slaughterville------| 95 |Somewhat limited | |Somewhat limited | |Somewhat limited |

 | | Filtering |0.01 | Filtering |0.01 | Too steep for |0.92

 | | capacity | | capacity | | surface |

 | | | | | | application |

 | | | | | | Too steep for |0.02

 | | | | | | sprinkler |

 | | | | | | application |

 | | | | | | Filtering |0.01

 | | | | | | capacity |

 | | | | | | |

SlaF: | | | | | | |

 Slaughterville------| 95 |Somewhat limited | |Somewhat limited | |Very limited |

 | | Slope |0.96 | Slope |0.96 | Too steep for |1.00

 | | Filtering |0.01 | Filtering |0.01 | surface |

 | | capacity | | capacity | | application |

 | | | | | | Too steep for |0.98

 | | | | | | sprinkler |

 | | | | | | application |

 | | | | | | Filtering |0.01

 | | | | | | capacity |

 | | | | | | |

StDC: | | | | | | |

 Stephenville--------| 55 |Somewhat limited | |Very limited | |Somewhat limited |

 | | Depth to bedrock |0.46 | Low adsorption |1.00 | Depth to bedrock |0.46

 | | Droughty |0.43 | Depth to bedrock |0.46 | Droughty |0.43

 | | Restricted |0.41 | Droughty |0.43 | Too acid |0.42

 | | permeability | | Too acid |0.42 | Restricted |0.31

 | | Too acid |0.11 | Restricted |0.31 | permeability |

 | | Filtering |0.01 | permeability | | Too steep for |0.08

 | | capacity | | | | surface |

 | | | | | | application |

 | | | | | | |

 Darsil--------------| 30 |Very limited | |Very limited | |Very limited |

 | | Filtering |1.00 | Droughty |1.00 | Droughty |1.00

 | | capacity | | Filtering |1.00 | Filtering |1.00

 | | Depth to bedrock |1.00 | capacity | | capacity |

 | | Droughty |1.00 | Depth to bedrock |1.00 | Depth to bedrock |1.00

 | | | | Low adsorption |1.00 | |

 | | | | | | |
344 Soil Survey

Agricultural Waste Management, Part I—Continued

________________________________________________________________________________________________________

 |Pct.| Application of | Application | Disposal of

 Map symbol | of | manure and food- | of sewage sludge | wastewater

 and soil name |map | processing waste | | by irrigation _____________________________________________________________________________

 |unit| Rating class and |Value| Rating class and |Value| Rating class and |Value

 | | limiting features | | limiting features | | limiting features | ________________________________________________________________________________________________________

 | | | | | | |

StDC2: | | | | | | |

 Stephenville--------| 55 |Somewhat limited | |Very limited | |Somewhat limited |

 | | Restricted |0.41 | Low adsorption |1.00 | Too acid |0.42

 | | permeability | | Too acid |0.42 | Restricted |0.31

 | | Too acid |0.11 | Restricted |0.31 | permeability |

 | | Depth to bedrock |0.01 | permeability | | Depth to bedrock |0.01

 | | Filtering |0.01 | Depth to bedrock |0.01 | Filtering |0.01

 | | capacity | | Filtering |0.01 | capacity |

 | | | | capacity | | |

 | | | | | | |

 Darsil--------------| 30 |Very limited | |Very limited | |Very limited |

 | | Filtering |1.00 | Droughty |1.00 | Droughty |1.00

 | | capacity | | Filtering |1.00 | Filtering |1.00

 | | Depth to bedrock |1.00 | capacity | | capacity |

 | | Droughty |1.00 | Depth to bedrock |1.00 | Depth to bedrock |1.00

 | | | | Low adsorption |1.00 | |

 | | | | | | |

StDE: | | | | | | |

 Stephenville--------| 50 |Somewhat limited | |Very limited | |Very limited |

 | | Slope |0.96 | Low adsorption |1.00 | Too steep for |1.00

 | | Depth to bedrock |0.71 | Slope |0.96 | surface |

 | | Droughty |0.68 | Depth to bedrock |0.71 | application |

 | | Restricted |0.41 | Droughty |0.68 | Too steep for |0.98

 | | permeability | | Too acid |0.42 | sprinkler |

 | | Too acid |0.11 | | | application |

 | | | | | | Depth to bedrock |0.71

 | | | | | | Droughty |0.68

 | | | | | | Too acid |0.42

 | | | | | | |

 Darsil--------------| 40 |Very limited | |Very limited | |Very limited |

 | | Filtering |1.00 | Droughty |1.00 | Droughty |1.00

 | | capacity | | Filtering |1.00 | Filtering |1.00

 | | Depth to bedrock |1.00 | capacity | | capacity |

 | | Droughty |1.00 | Depth to bedrock |1.00 | Depth to bedrock |1.00

 | | | | Low adsorption |1.00 | Too steep for |0.92

 | | | | | | surface |

 | | | | | | application |

 | | | | | | Too steep for |0.02

 | | | | | | sprinkler |

 | | | | | | application |

 | | | | | | |

SteB: | | | | | | |

 Stephenville--------| 94 |Somewhat limited | |Very limited | |Somewhat limited |

 | | Restricted |0.41 | Low adsorption |1.00 | Too acid |0.42

 | | permeability | | Too acid |0.42 | Restricted |0.31

 | | Too acid |0.11 | Restricted |0.31 | permeability |

 | | Depth to bedrock |0.10 | permeability | | Depth to bedrock |0.10

 | | Droughty |0.05 | Depth to bedrock |0.10 | Droughty |0.05

 | | Filtering |0.01 | Droughty |0.05 | Filtering |0.01

 | | capacity | | | | capacity |

 | | | | | | |

SteC2: | | | | | | |

 Stephenville--------| 92 |Somewhat limited | |Very limited | |Somewhat limited |

 | | Depth to bedrock |0.54 | Low adsorption |1.00 | Depth to bedrock |0.54

 | | Restricted |0.41 | Depth to bedrock |0.54 | Too acid |0.42

 | | permeability | | Too acid |0.42 | Droughty |0.35

 | | Droughty |0.35 | Droughty |0.35 | Restricted |0.31

 | | Too acid |0.11 | Restricted |0.31 | permeability |

 | | Filtering |0.01 | permeability | | Too steep for |0.08

 | | capacity | | | | surface |

 | | | | | | application |
Logan County, Oklahoma 345

Agricultural Waste Management, Part I—Continued

________________________________________________________________________________________________________

 |Pct.| Application of | Application | Disposal of

 Map symbol | of | manure and food- | of sewage sludge | wastewater

 and soil name |map | processing waste | | by irrigation _____________________________________________________________________________

 |unit| Rating class and |Value| Rating class and |Value| Rating class and |Value

 | | limiting features | | limiting features | | limiting features | ________________________________________________________________________________________________________

 | | | | | | |

SUND: | | | | | | |

 Stephenville--------| 35 |Somewhat limited | |Very limited | |Somewhat limited |

 | | Depth to bedrock |0.65 | Low adsorption |1.00 | Too steep for |0.92

 | | Droughty |0.47 | Depth to bedrock |0.65 | surface |

 | | Restricted |0.41 | Droughty |0.47 | application |

 | | permeability | | Too acid |0.42 | Depth to bedrock |0.65

 | | Too acid |0.11 | Restricted |0.31 | Droughty |0.47

 | | Filtering |0.01 | permeability | | Too acid |0.42

 | | capacity | | | | Restricted |0.31

 | | | | | | permeability |

 | | | | | | |

 Urban land----------| 30 |Not rated | |Not rated | |Not rated |

 | | | | | | |

 Newalla-------------| 15 |Very limited | |Very limited | |Very limited |

 | | Restricted |1.00 | Restricted |1.00 | Restricted |1.00

 | | permeability | | permeability | | permeability |

 | | Runoff limitation|0.40 | Low adsorption |1.00 | Too steep for |0.92

 | | Too acid |0.08 | Too acid |0.31 | surface |

 | | | | | | application |

 | | | | | | Too acid |0.31

 | | | | | | Too steep for |0.02

 | | | | | | sprinkler |

 | | | | | | application |

 | | | | | | |

TelB: | | | | | | |

 Teller--------------| 96 |Somewhat limited | |Somewhat limited | |Somewhat limited |

 | | Filtering |0.01 | Filtering |0.01 | Filtering |0.01

 | | capacity | | capacity | | capacity |

 | | | | | | |

TelC2: | | | | | | |

 Teller--------------| 96 |Somewhat limited | |Somewhat limited | |Somewhat limited |

 | | Filtering |0.01 | Filtering |0.01 | Too steep for |0.08

 | | capacity | | capacity | | surface |

 | | | | | | application |

 | | | | | | Filtering |0.01

 | | | | | | capacity |

 | | | | | | |

TriA: | | | | | | |

 Tribbey-------------| 90 |Very limited | |Very limited | |Very limited |

 | | Flooding |1.00 | Flooding |1.00 | Flooding |1.00

 | | Depth to dense |1.00 | Depth to |1.00 | Depth to |1.00

 | | layer | | saturated zone | | saturated zone |

 | | Depth to |1.00 | Filtering |0.01 | Filtering |0.01

 | | saturated zone | | capacity | | capacity |

 | | Filtering |0.01 | | | |

 | | capacity | | | | |

 | | | | | | |

URB: | | | | | | |

 Urban land----------|100 |Not rated | |Not rated | |Not rated |

 | | | | | | |

W: | | | | | | |

 Water---------------|100 |Not rated | |Not rated | |Not rated |

 | | | | | | |

YaaA, YahA: | | | | | | |

 Yahola--------------| 87 |Somewhat limited | |Very limited | |Somewhat limited |

 | | Flooding |0.60 | Flooding |1.00 | Flooding |0.60

 | | Filtering |0.01 | Filtering |0.01 | Filtering |0.01

 | | capacity | | capacity | | capacity |

 | | | | | | |
346 Soil Survey

Agricultural Waste Management, Part I—Continued

________________________________________________________________________________________________________

 |Pct.| Application of | Application | Disposal of

 Map symbol | of | manure and food- | of sewage sludge | wastewater

 and soil name |map | processing waste | | by irrigation _____________________________________________________________________________

 |unit| Rating class and |Value| Rating class and |Value| Rating class and |Value

 | | limiting features | | limiting features | | limiting features | ________________________________________________________________________________________________________

 | | | | | | |

ZaHC: | | | | | | |

 Zaneis--------------| 55 |Very limited | |Very limited | |Very limited |

 | | Restricted |1.00 | Low adsorption |1.00 | Restricted |1.00

 | | permeability | | Restricted |1.00 | permeability |

 | | Filtering |0.01 | permeability | | Too steep for |0.08

 | | capacity | | Filtering |0.01 | surface |

 | | | | capacity | | application |

 | | | | | | Filtering |0.01

 | | | | | | capacity |

 | | | | | | |

 Huska---------------| 25 |Very limited | |Very limited | |Very limited |

 | | Restricted |1.00 | Restricted |1.00 | Restricted |1.00

 | | permeability | | permeability | | permeability |

 | | Sodium content |1.00 | Sodium content |1.00 | Sodium content |1.00

 | | Runoff limitation|0.40 | Low adsorption |1.00 | Droughty |0.15

 | | Salinity |0.35 | Droughty |0.15 | Too steep for |0.08

 | | Droughty |0.15 | Salinity |0.01 | surface |

 | | | | | | application |

 | | | | | | Salinity |0.01

 | | | | | | |

ZanB: | | | | | | |

 Zaneis--------------| 87 |Very limited | |Very limited | |Very limited |

 | | Restricted |1.00 | Low adsorption |1.00 | Restricted |1.00

 | | permeability | | Restricted |1.00 | permeability |

 | | | | permeability | | |

 | | | | | | |

ZanC, ZanC2: | | | | | | |

 Zaneis--------------| 87 |Very limited | |Very limited | |Very limited |

 | | Restricted |1.00 | Low adsorption |1.00 | Restricted |1.00

 | | permeability | | Restricted |1.00 | permeability |

 | | | | permeability | | Too steep for |0.08

 | | | | | | surface |

 | | | | | | application |

 | | | | | | | ________________________________________________________________________________________________________
Logan County, Oklahoma 347

Agricultural Waste Management, Part II

(The information in this table indicates the dominant soil condition but does not eliminate the need

 for onsite investigation. The numbers in the value columns range from 0.01 to 1.00. The larger

 the value, the greater the limitation. See text for further explanation of ratings in this table)

________________________________________________________________________________________________________

 |Pct.| Overland flow | Rapid infiltration | Slow rate treatment

 Map symbol | of | of wastewater | of wastewater | of wastewater _____________________________________________________________________________

 and soil name |map | Rating class and |Value| Rating class and |Value| Rating class and |Value

 |unit| limiting features | | limiting features | | limiting features | ________________________________________________________________________________________________________

 | | | | | | |

AspA: | | | | | | |

 Ashport-------------| 95 |Very limited | |Very limited | |Somewhat limited |

 | | Flooding |1.00 | Restricted |1.00 | Flooding |0.60

 | | Seepage |1.00 | permeability | | |

 | | Too level |0.50 | Flooding |0.60 | |

 | | | | | | |

AstA: | | | | | | |

 Ashport-------------| 90 |Very limited | |Very limited | |Very limited |

 | | Flooding |1.00 | Flooding |1.00 | Flooding |1.00

 | | Seepage |1.00 | Restricted |1.00 | |

 | | Too level |0.50 | permeability | | |

 | | | | | | |

BetA: | | | | | | |

 Bethany-------------| 93 |Very limited | |Very limited | |Somewhat limited |

 | | Seepage |1.00 | Restricted |1.00 | Restricted |0.96

 | | Too level |0.50 | permeability | | permeability |

 | | | | | | |

BetB: | | | | | | |

 Bethany-------------| 93 |Very limited | |Very limited | |Somewhat limited |

 | | Seepage |1.00 | Restricted |1.00 | Restricted |0.96

 | | | | permeability | | permeability |

 | | | | | | |

BocA: | | | | | | |

 Bocox---------------| 94 |Very limited | |Very limited | |Very limited |

 | | Seepage |1.00 | Depth to |1.00 | Filtering |1.00

 | | Depth to |1.00 | saturated zone | | capacity |

 | | saturated zone | | Restricted |1.00 | Depth to |1.00

 | | Ponding |1.00 | permeability | | saturated zone |

 | | Too level |0.50 | Ponding |1.00 | Ponding |1.00

 | | | | | | |

BtlA: | | | | | | |

 Bathel--------------| 94 |Very limited | |Very limited | |Very limited |

 | | Seepage |1.00 | Ponding |1.00 | Filtering |1.00

 | | Ponding |1.00 | Depth to |1.00 | capacity |

 | | Depth to |0.68 | saturated zone | | Ponding |1.00

 | | saturated zone | | Restricted |1.00 | Depth to |0.68

 | | Too level |0.50 | permeability | | saturated zone |

 | | | | | | |

CaaA: | | | | | | |

 Canadian------------| 94 |Very limited | |Somewhat limited | |Somewhat limited |

 | | Seepage |1.00 | Restricted |0.31 | Filtering |0.01

 | | Too level |0.50 | permeability | | capacity |

 | | Flooding |0.40 | | | |

 | | | | | | |

CAID: | | | | | | |

 Coyle---------------| 31 |Very limited | |Very limited | |Very limited |

 | | Seepage |1.00 | Restricted |1.00 | Depth to bedrock |1.00

 | | Depth to bedrock |1.00 | permeability | | Restricted |0.99

 | | | | Depth to bedrock |1.00 | permeability |

 | | | | | | Too steep for |0.08

 | | | | | | surface |

 | | | | | | application |

 | | | | | | |
348 Soil Survey

Agricultural Waste Management, Part II—Continued

________________________________________________________________________________________________________

 |Pct.| Overland flow | Rapid infiltration | Slow rate treatment

 Map symbol | of | of wastewater | of wastewater | of wastewater _____________________________________________________________________________

 and soil name |map | Rating class and |Value| Rating class and |Value| Rating class and |Value

 |unit| limiting features | | limiting features | | limiting features | ________________________________________________________________________________________________________

 | | | | | | |

CAID: | | | | | | |

 Ashport-------------| 28 |Very limited | |Very limited | |Very limited |

 | | Flooding |1.00 | Flooding |1.00 | Flooding |1.00

 | | Seepage |1.00 | Restricted |1.00 | |

 | | Too level |0.50 | permeability | | |

 | | | | | | |

 Ironmound-----------| 22 |Very limited | |Very limited | |Very limited |

 | | Seepage |1.00 | Restricted |1.00 | Depth to bedrock |1.00

 | | Depth to bedrock |1.00 | permeability | | Restricted |0.99

 | | Too steep for |0.06 | Depth to bedrock |1.00 | permeability |

 | | surface | | Slope |0.88 | Too steep for |0.92

 | | application | | | | surface |

 | | | | | | application |

 | | | | | | Too steep for |0.06

 | | | | | | sprinkler |

 | | | | | | application |

 | | | | | | |

CoIC2: | | | | | | |

 Coyle---------------| 61 |Very limited | |Very limited | |Very limited |

 | | Seepage |1.00 | Restricted |1.00 | Depth to bedrock |1.00

 | | Depth to bedrock |1.00 | permeability | | Restricted |0.99

 | | | | Depth to bedrock |1.00 | permeability |

 | | | | | | Too steep for |0.08

 | | | | | | surface |

 | | | | | | application |

 | | | | | | |

 Ironmound-----------| 33 |Very limited | |Very limited | |Very limited |

 | | Seepage |1.00 | Restricted |1.00 | Depth to bedrock |1.00

 | | Depth to bedrock |1.00 | permeability | | Restricted |0.99

 | | | | Depth to bedrock |1.00 | permeability |

 | | | | | | Too steep for |0.08

 | | | | | | surface |

 | | | | | | application |

 | | | | | | |

CoUB: | | | | | | |

 Coyle---------------| 55 |Very limited | |Very limited | |Very limited |

 | | Seepage |1.00 | Depth to bedrock |1.00 | Depth to bedrock |1.00

 | | Depth to bedrock |1.00 | Restricted |1.00 | |

 | | | | permeability | | |

 | | | | | | |

 Urban land----------| 40 |Not rated | |Not rated | |Not rated |

 | | | | | | |

CoUC: | | | | | | |

 Coyle---------------| 42 |Very limited | |Very limited | |Very limited |

 | | Seepage |1.00 | Restricted |1.00 | Depth to bedrock |1.00

 | | Depth to bedrock |1.00 | permeability | | Restricted |0.99

 | | | | Depth to bedrock |1.00 | permeability |

 | | | | | | |

 Urban land----------| 38 |Not rated | |Not rated | |Not rated |

 | | | | | | |

CoyB: | | | | | | |

 Coyle---------------| 91 |Very limited | |Very limited | |Very limited |

 | | Seepage |1.00 | Restricted |1.00 | Depth to bedrock |1.00

 | | Depth to bedrock |1.00 | permeability | | Restricted |0.99

 | | | | Depth to bedrock |1.00 | permeability |

 | | | | | | |
Logan County, Oklahoma 349

Agricultural Waste Management, Part II—Continued

________________________________________________________________________________________________________

 |Pct.| Overland flow | Rapid infiltration | Slow rate treatment

 Map symbol | of | of wastewater | of wastewater | of wastewater _____________________________________________________________________________

 and soil name |map | Rating class and |Value| Rating class and |Value| Rating class and |Value

 |unit| limiting features | | limiting features | | limiting features | ________________________________________________________________________________________________________

 | | | | | | |

CoyC2: | | | | | | |

 Coyle---------------| 91 |Very limited | |Very limited | |Very limited |

 | | Seepage |1.00 | Restricted |1.00 | Depth to bedrock |1.00

 | | Depth to bedrock |1.00 | permeability | | Restricted |0.99

 | | | | Depth to bedrock |1.00 | permeability |

 | | | | | | Too steep for |0.08

 | | | | | | surface |

 | | | | | | application |

 | | | | | | |

CoZC3: | | | | | | |

 Coyle---------------| 70 |Very limited | |Very limited | |Very limited |

 | | Seepage |1.00 | Restricted |1.00 | Depth to bedrock |1.00

 | | Depth to bedrock |1.00 | permeability | | Restricted |0.99

 | | | | Depth to bedrock |1.00 | permeability |

 | | | | | | Too steep for |0.08

 | | | | | | surface |

 | | | | | | application |

 | | | | | | |

 Zaneis--------------| 15 |Very limited | |Very limited | |Somewhat limited |

 | | Seepage |1.00 | Restricted |1.00 | Restricted |0.99

 | | Depth to bedrock |0.71 | permeability | | permeability |

 | | | | Depth to bedrock |1.00 | Depth to bedrock |0.71

 | | | | | | Too steep for |0.08

 | | | | | | surface |

 | | | | | | application |

 | | | | | | |

DAM: | | | | | | |

 Dam-----------------|100 |Not rated | |Not rated | |Not rated |

 | | | | | | |

DerB: | | | | | | |

 Derby---------------| 90 |Very limited | |Not limited | |Very limited |

 | | Seepage |1.00 | | | Filtering |1.00

 | | | | | | capacity |

 | | | | | | |

DerD: | | | | | | |

 Derby---------------| 90 |Very limited | |Somewhat limited | |Very limited |

 | | Seepage |1.00 | Slope |0.50 | Filtering |1.00

 | | | | | | capacity |

 | | | | | | Too steep for |0.68

 | | | | | | surface |

 | | | | | | application |

 | | | | | | |

DerE: | | | | | | |

 Derby---------------| 90 |Very limited | |Very limited | |Very limited |

 | | Seepage |1.00 | Slope |1.00 | Filtering |1.00

 | | Too steep for |1.00 | | | capacity |

 | | surface | | | | Too steep for |1.00

 | | application | | | | surface |

 | | | | | | application |

 | | | | | | Too steep for |1.00

 | | | | | | sprinkler |

 | | | | | | application |

 | | | | | | |
350 Soil Survey

Agricultural Waste Management, Part II—Continued

________________________________________________________________________________________________________

 |Pct.| Overland flow | Rapid infiltration | Slow rate treatment

 Map symbol | of | of wastewater | of wastewater | of wastewater _____________________________________________________________________________

 and soil name |map | Rating class and |Value| Rating class and |Value| Rating class and |Value

 |unit| limiting features | | limiting features | | limiting features | ________________________________________________________________________________________________________

 | | | | | | |

DiRG: | | | | | | |

 Darsil--------------| 67 |Very limited | |Very limited | |Very limited |

 | | Seepage |1.00 | Slope |1.00 | Filtering |1.00

 | | Depth to bedrock |1.00 | Depth to bedrock |1.00 | capacity |

 | | Too steep for |1.00 | Restricted |1.00 | Depth to bedrock |1.00

 | | surface | | permeability | | Too steep for |1.00

 | | application | | | | surface |

 | | | | | | application |

 | | | | | | Too steep for |1.00

 | | | | | | sprinkler |

 | | | | | | application |

 | | | | | | |

 Rock outcrop--------| 20 |Not rated | |Not rated | |Not rated |

 | | | | | | |

DouB: | | | | | | |

 Dougherty-----------| 91 |Very limited | |Very limited | |Somewhat limited |

 | | Seepage |1.00 | Restricted |1.00 | Too acid |0.42

 | | Too acid |0.42 | permeability | | Filtering |0.01

 | | | | | | capacity |

 | | | | | | |

DouD: | | | | | | |

 Dougherty-----------| 91 |Very limited | |Very limited | |Somewhat limited |

 | | Seepage |1.00 | Restricted |1.00 | Too steep for |0.68

 | | Too acid |0.42 | permeability | | surface |

 | | | | Slope |0.50 | application |

 | | | | | | Too acid |0.42

 | | | | | | Filtering |0.01

 | | | | | | capacity |

 | | | | | | |

DUM: | | | | | | |

 Dumps---------------|100 |Not rated | |Not rated | |Not rated |

 | | | | | | |

EasA: | | | | | | |

 Easpur--------------| 93 |Very limited | |Very limited | |Somewhat limited |

 | | Flooding |1.00 | Restricted |1.00 | Flooding |0.60

 | | Seepage |1.00 | permeability | | |

 | | Too level |0.50 | Flooding |0.60 | |

 | | | | | | |

GadA: | | | | | | |

 Gaddy---------------| 85 |Very limited | |Somewhat limited | |Very limited |

 | | Flooding |1.00 | Flooding |0.60 | Filtering |1.00

 | | Seepage |1.00 | | | capacity |

 | | Too level |0.50 | | | Flooding |0.60

 | | | | | | |

GaGA: | | | | | | |

 Gaddy---------------| 67 |Very limited | |Very limited | |Very limited |

 | | Flooding |1.00 | Flooding |1.00 | Filtering |1.00

 | | Seepage |1.00 | Restricted |0.31 | capacity |

 | | Too level |0.50 | permeability | | Flooding |1.00

 | | | | | | |

 Gracemore-----------| 23 |Very limited | |Very limited | |Very limited |

 | | Flooding |1.00 | Flooding |1.00 | Depth to |1.00

 | | Seepage |1.00 | Depth to |1.00 | saturated zone |

 | | Depth to |1.00 | saturated zone | | Flooding |1.00

 | | saturated zone | | Restricted |0.31 | Filtering |0.01

 | | Too level |0.50 | permeability | | capacity |

 | | | | | | |
Logan County, Oklahoma 351

Agricultural Waste Management, Part II—Continued

________________________________________________________________________________________________________

 |Pct.| Overland flow | Rapid infiltration | Slow rate treatment

 Map symbol | of | of wastewater | of wastewater | of wastewater _____________________________________________________________________________

 and soil name |map | Rating class and |Value| Rating class and |Value| Rating class and |Value

 |unit| limiting features | | limiting features | | limiting features | ________________________________________________________________________________________________________

 | | | | | | |

GMGE4: | | | | | | |

 Grainola------------| 40 |Very limited | |Very limited | |Very limited |

 | | Depth to bedrock |1.00 | Restricted |1.00 | Depth to bedrock |1.00

 | | Too steep for |0.78 | permeability | | Restricted |1.00

 | | surface | | Depth to bedrock |1.00 | permeability |

 | | application | | Slope |1.00 | Too steep for |1.00

 | | Seepage |0.69 | | | surface |

 | | | | | | application |

 | | | | | | Too steep for |0.78

 | | | | | | sprinkler |

 | | | | | | application |

 | | | | | | |

 Masham--------------| 30 |Very limited | |Very limited | |Very limited |

 | | Depth to bedrock |1.00 | Restricted |1.00 | Depth to bedrock |1.00

 | | Too steep for |0.78 | permeability | | Restricted |1.00

 | | surface | | Depth to bedrock |1.00 | permeability |

 | | application | | Slope |1.00 | Too steep for |1.00

 | | | | | | surface |

 | | | | | | application |

 | | | | | | Too steep for |0.78

 | | | | | | sprinkler |

 | | | | | | application |

 | | | | | | |

 Gullied land--------| 20 |Not rated | |Not rated | |Not rated |

 | | | | | | |

GMLG: | | | | | | |

 Grainola------------| 37 |Very limited | |Very limited | |Very limited |

 | | Seepage |1.00 | Restricted |1.00 | Depth to bedrock |1.00

 | | Depth to bedrock |1.00 | permeability | | Restricted |1.00

 | | Too steep for |1.00 | Depth to bedrock |1.00 | permeability |

 | | surface | | Slope |1.00 | Too steep for |1.00

 | | application | | | | surface |

 | | | | | | application |

 | | | | | | Too steep for |1.00

 | | | | | | sprinkler |

 | | | | | | application |

 | | | | | | |

 Masham--------------| 22 |Very limited | |Very limited | |Very limited |

 | | Depth to bedrock |1.00 | Slope |1.00 | Depth to bedrock |1.00

 | | Too steep for |1.00 | Restricted |1.00 | Too steep for |1.00

 | | surface | | permeability | | surface |

 | | application | | Depth to bedrock |1.00 | application |

 | | | | | | Too steep for |1.00

 | | | | | | sprinkler |

 | | | | | | application |

 | | | | | | Restricted |1.00

 | | | | | | permeability |

 | | | | | | |

 Lucien--------------| 21 |Very limited | |Very limited | |Very limited |

 | | Seepage |1.00 | Slope |1.00 | Depth to bedrock |1.00

 | | Depth to bedrock |1.00 | Restricted |1.00 | Too steep for |1.00

 | | Too steep for |1.00 | permeability | | surface |

 | | surface | | Depth to bedrock |1.00 | application |

 | | application | | | | Too steep for |1.00

 | | | | | | sprinkler |

 | | | | | | application |

 | | | | | | Restricted |1.00

 | | | | | | permeability |

 | | | | | | Filtering |0.01

 | | | | | | capacity |

 | | | | | | |
352 Soil Survey

Agricultural Waste Management, Part II—Continued

________________________________________________________________________________________________________

 |Pct.| Overland flow | Rapid infiltration | Slow rate treatment

 Map symbol | of | of wastewater | of wastewater | of wastewater _____________________________________________________________________________

 and soil name |map | Rating class and |Value| Rating class and |Value| Rating class and |Value

 |unit| limiting features | | limiting features | | limiting features | ________________________________________________________________________________________________________

 | | | | | | |

GohC: | | | | | | |

 Goodnight-----------| 92 |Very limited | |Not limited | |Very limited |

 | | Seepage |1.00 | | | Filtering |1.00

 | | | | | | capacity |

 | | | | | | |

GohE: | | | | | | |

 Goodnight-----------| 92 |Very limited | |Very limited | |Very limited |

 | | Seepage |1.00 | Slope |1.00 | Filtering |1.00

 | | Too steep for |0.78 | | | capacity |

 | | surface | | | | Too steep for |1.00

 | | application | | | | surface |

 | | | | | | application |

 | | | | | | Too steep for |0.78

 | | | | | | sprinkler |

 | | | | | | application |

 | | | | | | |

GooE: | | | | | | |

 Goodnight-----------| 92 |Very limited | |Very limited | |Very limited |

 | | Seepage |1.00 | Slope |1.00 | Filtering |1.00

 | | Too steep for |0.22 | | | capacity |

 | | surface | | | | Too steep for |1.00

 | | application | | | | surface |

 | | | | | | application |

 | | | | | | Too steep for |0.22

 | | | | | | sprinkler |

 | | | | | | application |

 | | | | | | |

GooG: | | | | | | |

 Goodnight-----------| 92 |Very limited | |Very limited | |Very limited |

 | | Seepage |1.00 | Slope |1.00 | Filtering |1.00

 | | Too steep for |1.00 | | | capacity |

 | | surface | | | | Too steep for |1.00

 | | application | | | | surface |

 | | | | | | application |

 | | | | | | Too steep for |1.00

 | | | | | | sprinkler |

 | | | | | | application |

 | | | | | | |

GraC: | | | | | | |

 Grainola------------| 88 |Very limited | |Very limited | |Very limited |

 | | Depth to bedrock |1.00 | Restricted |1.00 | Depth to bedrock |1.00

 | | Seepage |0.69 | permeability | | Restricted |1.00

 | | | | Depth to bedrock |1.00 | permeability |

 | | | | | | Too steep for |0.08

 | | | | | | surface |

 | | | | | | application |

 | | | | | | |

GraD2: | | | | | | |

 Grainola------------| 89 |Very limited | |Very limited | |Very limited |

 | | Depth to bedrock |1.00 | Restricted |1.00 | Depth to bedrock |1.00

 | | Seepage |0.69 | permeability | | Restricted |1.00

 | | Too steep for |0.06 | Depth to bedrock |1.00 | permeability |

 | | surface | | Slope |0.88 | Too steep for |0.92

 | | application | | | | surface |

 | | | | | | application |

 | | | | | | Too steep for |0.06

 | | | | | | sprinkler |

 | | | | | | application |

 | | | | | | |
Logan County, Oklahoma 353

Agricultural Waste Management, Part II—Continued

________________________________________________________________________________________________________

 |Pct.| Overland flow | Rapid infiltration | Slow rate treatment

 Map symbol | of | of wastewater | of wastewater | of wastewater _____________________________________________________________________________

 and soil name |map | Rating class and |Value| Rating class and |Value| Rating class and |Value

 |unit| limiting features | | limiting features | | limiting features | ________________________________________________________________________________________________________

 | | | | | | |

GrHC: | | | | | | |

 Grant---------------| 45 |Very limited | |Very limited | |Very limited |

 | | Seepage |1.00 | Restricted |1.00 | Restricted |1.00

 | | Depth to bedrock |0.14 | permeability | | permeability |

 | | | | Depth to bedrock |1.00 | Depth to bedrock |0.14

 | | | | | | Too steep for |0.08

 | | | | | | surface |

 | | | | | | application |

 | | | | | | |

 Huska---------------| 35 |Very limited | |Very limited | |Very limited |

 | | Sodium content |1.00 | Restricted |1.00 | Sodium content |1.00

 | | Seepage |1.00 | permeability | | Restricted |1.00

 | | Depth to bedrock |0.42 | Depth to bedrock |1.00 | permeability |

 | | | | | | Depth to bedrock |0.42

 | | | | | | Salinity |0.01

 | | | | | | |

GrIE: | | | | | | |

 Grainola------------| 71 |Very limited | |Very limited | |Very limited |

 | | Depth to bedrock |1.00 | Restricted |1.00 | Depth to bedrock |1.00

 | | Seepage |0.69 | permeability | | Too steep for |1.00

 | | Too steep for |0.22 | Depth to bedrock |1.00 | surface |

 | | surface | | Slope |1.00 | application |

 | | application | | | | Restricted |0.96

 | | | | | | permeability |

 | | | | | | Too steep for |0.22

 | | | | | | sprinkler |

 | | | | | | application |

 | | | | | | |

 Ironmound-----------| 20 |Very limited | |Very limited | |Very limited |

 | | Seepage |1.00 | Depth to bedrock |1.00 | Depth to bedrock |1.00

 | | Depth to bedrock |1.00 | Restricted |1.00 | Too steep for |1.00

 | | Too steep for |0.22 | permeability | | surface |

 | | surface | | Slope |1.00 | application |

 | | application | | | | Too steep for |0.22

 | | | | | | sprinkler |

 | | | | | | application |

 | | | | | | Filtering |0.01

 | | | | | | capacity |

 | | | | | | |

GrLE: | | | | | | |

 Grainola------------| 55 |Very limited | |Very limited | |Very limited |

 | | Depth to bedrock |1.00 | Restricted |1.00 | Depth to bedrock |1.00

 | | Seepage |0.69 | permeability | | Restricted |1.00

 | | Too steep for |0.50 | Depth to bedrock |1.00 | permeability |

 | | surface | | Slope |1.00 | Too steep for |1.00

 | | application | | | | surface |

 | | | | | | application |

 | | | | | | Too steep for |0.50

 | | | | | | sprinkler |

 | | | | | | application |

 | | | | | | |
354 Soil Survey

Agricultural Waste Management, Part II—Continued

________________________________________________________________________________________________________

 |Pct.| Overland flow | Rapid infiltration | Slow rate treatment

 Map symbol | of | of wastewater | of wastewater | of wastewater _____________________________________________________________________________

 and soil name |map | Rating class and |Value| Rating class and |Value| Rating class and |Value

 |unit| limiting features | | limiting features | | limiting features | ________________________________________________________________________________________________________

 | | | | | | |

GrLE: | | | | | | |

 Lucien--------------| 26 |Very limited | |Very limited | |Very limited |

 | | Seepage |1.00 | Restricted |1.00 | Depth to bedrock |1.00

 | | Depth to bedrock |1.00 | permeability | | Restricted |1.00

 | | Too steep for |0.50 | Depth to bedrock |1.00 | permeability |

 | | surface | | Slope |1.00 | Too steep for |1.00

 | | application | | | | surface |

 | | | | | | application |

 | | | | | | Too steep for |0.50

 | | | | | | sprinkler |

 | | | | | | application |

 | | | | | | Filtering |0.01

 | | | | | | capacity |

 | | | | | | |

HaGD4: | | | | | | |

 Harrah--------------| 70 |Very limited | |Very limited | |Somewhat limited |

 | | Seepage |1.00 | Restricted |1.00 | Too steep for |0.92

 | | Too acid |0.31 | permeability | | surface |

 | | Too steep for |0.06 | Slope |0.88 | application |

 | | surface | | | | Too acid |0.31

 | | application | | | | Too steep for |0.06

 | | | | | | sprinkler |

 | | | | | | application |

 | | | | | | Filtering |0.01

 | | | | | | capacity |

 | | | | | | |

 Gullied land--------| 15 |Not rated | |Not rated | |Not rated |

 | | | | | | |

HarC, HarC2: | | | | | | |

 Harrah--------------| 91 |Very limited | |Very limited | |Somewhat limited |

 | | Seepage |1.00 | Restricted |1.00 | Too acid |0.31

 | | Too acid |0.31 | permeability | | Too steep for |0.08

 | | | | | | surface |

 | | | | | | application |

 | | | | | | Filtering |0.01

 | | | | | | capacity |

 | | | | | | |

HarG: | | | | | | |

 Harrah--------------| 86 |Very limited | |Very limited | |Very limited |

 | | Seepage |1.00 | Restricted |1.00 | Too steep for |1.00

 | | Too steep for |1.00 | permeability | | surface |

 | | surface | | Slope |1.00 | application |

 | | application | | | | Too steep for |1.00

 | | Too acid |0.31 | | | sprinkler |

 | | | | | | application |

 | | | | | | Too acid |0.31

 | | | | | | Filtering |0.01

 | | | | | | capacity |

 | | | | | | |

HawB: | | | | | | |

 Hawley--------------| 94 |Very limited | |Very limited | |Very limited |

 | | Seepage |1.00 | Restricted |1.00 | Filtering |1.00

 | | Flooding |0.40 | permeability | | capacity |

 | | | | | | |
Logan County, Oklahoma 355

Agricultural Waste Management, Part II—Continued

________________________________________________________________________________________________________

 |Pct.| Overland flow | Rapid infiltration | Slow rate treatment

 Map symbol | of | of wastewater | of wastewater | of wastewater _____________________________________________________________________________

 and soil name |map | Rating class and |Value| Rating class and |Value| Rating class and |Value

 |unit| limiting features | | limiting features | | limiting features | ________________________________________________________________________________________________________

 | | | | | | |

ICGD3: | | | | | | |

 Ironmound-----------| 40 |Very limited | |Very limited | |Very limited |

 | | Seepage |1.00 | Restricted |1.00 | Depth to bedrock |1.00

 | | Depth to bedrock |1.00 | permeability | | Restricted |0.99

 | | Too steep for |0.06 | Depth to bedrock |1.00 | permeability |

 | | surface | | Slope |0.88 | Too steep for |0.92

 | | application | | | | surface |

 | | | | | | application |

 | | | | | | Too steep for |0.06

 | | | | | | sprinkler |

 | | | | | | application |

 | | | | | | Filtering |0.01

 | | | | | | capacity |

 | | | | | | |

 Coyle---------------| 30 |Very limited | |Very limited | |Very limited |

 | | Seepage |1.00 | Restricted |1.00 | Depth to bedrock |1.00

 | | Depth to bedrock |1.00 | permeability | | Restricted |0.99

 | | Too steep for |0.06 | Depth to bedrock |1.00 | permeability |

 | | surface | | Slope |0.88 | Too steep for |0.92

 | | application | | | | surface |

 | | | | | | application |

 | | | | | | Too steep for |0.06

 | | | | | | sprinkler |

 | | | | | | application |

 | | | | | | |

 Grainola------------| 15 |Very limited | |Very limited | |Very limited |

 | | Depth to bedrock |1.00 | Restricted |1.00 | Depth to bedrock |1.00

 | | Seepage |0.69 | permeability | | Restricted |0.99

 | | Too steep for |0.06 | Depth to bedrock |1.00 | permeability |

 | | surface | | Slope |0.88 | Too steep for |0.92

 | | application | | | | surface |

 | | | | | | application |

 | | | | | | Too steep for |0.06

 | | | | | | sprinkler |

 | | | | | | application |

 | | | | | | |

IrCE: | | | | | | |

 Ironmound-----------| 53 |Very limited | |Very limited | |Very limited |

 | | Seepage |1.00 | Restricted |1.00 | Depth to bedrock |1.00

 | | Depth to bedrock |1.00 | permeability | | Too steep for |1.00

 | | Too steep for |0.78 | Depth to bedrock |1.00 | surface |

 | | surface | | Slope |1.00 | application |

 | | application | | | | Restricted |0.99

 | | | | | | permeability |

 | | | | | | Too steep for |0.78

 | | | | | | sprinkler |

 | | | | | | application |

 | | | | | | Filtering |0.01

 | | | | | | capacity |

 | | | | | | |

 Coyle---------------| 22 |Very limited | |Very limited | |Very limited |

 | | Seepage |1.00 | Slope |1.00 | Depth to bedrock |1.00

 | | Depth to bedrock |1.00 | Restricted |1.00 | Too steep for |1.00

 | | Too steep for |0.78 | permeability | | surface |

 | | surface | | Depth to bedrock |1.00 | application |

 | | application | | | | Restricted |0.99

 | | | | | | permeability |

 | | | | | | Too steep for |0.78

 | | | | | | sprinkler |

 | | | | | | application |

 | | | | | | |
356 Soil Survey

Agricultural Waste Management, Part II—Continued

________________________________________________________________________________________________________

 |Pct.| Overland flow | Rapid infiltration | Slow rate treatment

 Map symbol | of | of wastewater | of wastewater | of wastewater _____________________________________________________________________________

 and soil name |map | Rating class and |Value| Rating class and |Value| Rating class and |Value

 |unit| limiting features | | limiting features | | limiting features | ________________________________________________________________________________________________________

 | | | | | | |

IroC2: | | | | | | |

 Ironmound-----------| 90 |Very limited | |Very limited | |Very limited |

 | | Seepage |1.00 | Restricted |1.00 | Depth to bedrock |1.00

 | | Depth to bedrock |1.00 | permeability | | Restricted |0.99

 | | | | Depth to bedrock |1.00 | permeability |

 | | | | | | Too steep for |0.08

 | | | | | | surface |

 | | | | | | application |

 | | | | | | |

KgfB: | | | | | | |

 Kingfisher----------| 90 |Very limited | |Very limited | |Very limited |

 | | Seepage |1.00 | Restricted |1.00 | Depth to bedrock |1.00

 | | Depth to bedrock |1.00 | permeability | | Restricted |0.99

 | | | | Depth to bedrock |1.00 | permeability |

 | | | | | | |

KinC2: | | | | | | |

 Kingfisher----------| 90 |Very limited | |Very limited | |Very limited |

 | | Seepage |1.00 | Restricted |1.00 | Depth to bedrock |1.00

 | | Depth to bedrock |1.00 | permeability | | Restricted |0.99

 | | | | Depth to bedrock |1.00 | permeability |

 | | | | | | Too steep for |0.08

 | | | | | | surface |

 | | | | | | application |

 | | | | | | |

KonB: | | | | | | |

 Konawa--------------| 96 |Very limited | |Very limited | |Somewhat limited |

 | | Seepage |1.00 | Restricted |1.00 | Too acid |0.42

 | | Too acid |0.42 | permeability | | Filtering |0.01

 | | | | | | capacity |

 | | | | | | |

KonD2: | | | | | | |

 Konawa--------------| 96 |Very limited | |Somewhat limited | |Somewhat limited |

 | | Seepage |1.00 | Restricted |0.61 | Too steep for |0.68

 | | Too acid |0.42 | permeability | | surface |

 | | | | Slope |0.50 | application |

 | | | | | | Too acid |0.42

 | | | | | | Filtering |0.01

 | | | | | | capacity |

 | | | | | | |

KrdA: | | | | | | |

 Kirkland------------| 90 |Very limited | |Very limited | |Very limited |

 | | Seepage |1.00 | Restricted |1.00 | Restricted |1.00

 | | Too level |0.50 | permeability | | permeability |

 | | Sodium content |0.32 | | | Sodium content |0.32

 | | | | | | |

KrkB: | | | | | | |

 Kirkland------------| 90 |Somewhat limited | |Very limited | |Very limited |

 | | Seepage |0.69 | Restricted |1.00 | Restricted |1.00

 | | Sodium content |0.32 | permeability | | permeability |

 | | | | | | Sodium content |0.32

 | | | | | | |

LarA: | | | | | | |

 Lawrie--------------| 94 |Very limited | |Very limited | |Somewhat limited |

 | | Flooding |1.00 | Restricted |1.00 | Flooding |0.60

 | | Seepage |1.00 | permeability | | |

 | | Too level |0.50 | Flooding |0.60 | |

 | | | | | | |

LawA: | | | | | | |

 Lawrie--------------| 86 |Very limited | |Very limited | |Not limited |

 | | Seepage |1.00 | Restricted |1.00 | |

 | | Too level |0.50 | permeability | | |

 | | Flooding |0.40 | | | |
Logan County, Oklahoma 357

Agricultural Waste Management, Part II—Continued

________________________________________________________________________________________________________

 |Pct.| Overland flow | Rapid infiltration | Slow rate treatment

 Map symbol | of | of wastewater | of wastewater | of wastewater _____________________________________________________________________________

 and soil name |map | Rating class and |Value| Rating class and |Value| Rating class and |Value

 |unit| limiting features | | limiting features | | limiting features | ________________________________________________________________________________________________________

 | | | | | | |

LerA: | | | | | | |

 Lebron--------------| 80 |Very limited | |Very limited | |Very limited |

 | | Flooding |1.00 | Restricted |1.00 | Filtering |1.00

 | | Depth to |1.00 | permeability | | capacity |

 | | saturated zone | | Depth to |1.00 | Depth to |1.00

 | | Ponding |1.00 | saturated zone | | saturated zone |

 | | Too level |0.50 | Ponding |1.00 | Restricted |1.00

 | | | | Flooding |0.60 | permeability |

 | | | | | | Ponding |1.00

 | | | | | | Flooding |0.60

 | | | | | | |

LitB: | | | | | | |

 Littleaxe-----------| 80 |Very limited | |Very limited | |Somewhat limited |

 | | Seepage |1.00 | Depth to bedrock |1.00 | Too acid |0.07

 | | Too acid |0.07 | Restricted |1.00 | Depth to bedrock |0.01

 | | Depth to bedrock |0.01 | permeability | | Filtering |0.01

 | | | | | | capacity |

 | | | | | | |

LitC2: | | | | | | |

 Littleaxe-----------| 80 |Very limited | |Very limited | |Somewhat limited |

 | | Seepage |1.00 | Depth to bedrock |1.00 | Depth to bedrock |0.26

 | | Depth to bedrock |0.26 | Restricted |1.00 | Too steep for |0.08

 | | Too acid |0.07 | permeability | | surface |

 | | | | | | application |

 | | | | | | Too acid |0.07

 | | | | | | Filtering |0.01

 | | | | | | capacity |

 | | | | | | |

M-W: | | | | | | |

 Miscellaneous water-|100 |Not rated | |Not rated | |Not rated |

 | | | | | | |

MaID: | | | | | | |

 Masham--------------| 52 |Very limited | |Very limited | |Very limited |

 | | Depth to bedrock |1.00 | Restricted |1.00 | Depth to bedrock |1.00

 | | Too steep for |0.94 | permeability | | Restricted |1.00

 | | surface | | Depth to bedrock |1.00 | permeability |

 | | application | | Slope |1.00 | Too steep for |1.00

 | | | | | | surface |

 | | | | | | application |

 | | | | | | Too steep for |0.94

 | | | | | | sprinkler |

 | | | | | | application |

 | | | | | | |

 Ironmound-----------| 27 |Very limited | |Very limited | |Very limited |

 | | Seepage |1.00 | Restricted |1.00 | Depth to bedrock |1.00

 | | Depth to bedrock |1.00 | permeability | | Too steep for |1.00

 | | Too steep for |0.78 | Depth to bedrock |1.00 | surface |

 | | surface | | Slope |1.00 | application |

 | | application | | | | Restricted |0.99

 | | | | | | permeability |

 | | | | | | Too steep for |0.78

 | | | | | | sprinkler |

 | | | | | | application |

 | | | | | | |
358 Soil Survey

Agricultural Waste Management, Part II—Continued

________________________________________________________________________________________________________

 |Pct.| Overland flow | Rapid infiltration | Slow rate treatment

 Map symbol | of | of wastewater | of wastewater | of wastewater _____________________________________________________________________________

 and soil name |map | Rating class and |Value| Rating class and |Value| Rating class and |Value

 |unit| limiting features | | limiting features | | limiting features | ________________________________________________________________________________________________________

 | | | | | | |

MaIG: | | | | | | |

 Masham--------------| 73 |Very limited | |Very limited | |Very limited |

 | | Depth to bedrock |1.00 | Slope |1.00 | Depth to bedrock |1.00

 | | Too steep for |1.00 | Restricted |1.00 | Too steep for |1.00

 | | surface | | permeability | | surface |

 | | application | | Depth to bedrock |1.00 | application |

 | | | | | | Too steep for |1.00

 | | | | | | sprinkler |

 | | | | | | application |

 | | | | | | Restricted |1.00

 | | | | | | permeability |

 | | | | | | |

 Ironmound-----------| 17 |Very limited | |Very limited | |Very limited |

 | | Seepage |1.00 | Slope |1.00 | Depth to bedrock |1.00

 | | Depth to bedrock |1.00 | Restricted |1.00 | Too steep for |1.00

 | | Too steep for |1.00 | permeability | | surface |

 | | surface | | Depth to bedrock |1.00 | application |

 | | application | | | | Too steep for |1.00

 | | | | | | sprinkler |

 | | | | | | application |

 | | | | | | Restricted |0.99

 | | | | | | permeability |

 | | | | | | |

MinB: | | | | | | |

 Minco---------------| 91 |Very limited | |Very limited | |Not limited |

 | | Seepage |1.00 | Restricted |1.00 | |

 | | | | permeability | | |

 | | | | | | |

MinC: | | | | | | |

 Minco---------------| 91 |Very limited | |Very limited | |Somewhat limited |

 | | Seepage |1.00 | Restricted |1.00 | Too steep for |0.08

 | | | | permeability | | surface |

 | | | | | | application |

 | | | | | | |

MinD: | | | | | | |

 Minco---------------| 91 |Very limited | |Very limited | |Somewhat limited |

 | | Seepage |1.00 | Restricted |1.00 | Too steep for |0.92

 | | Too steep for |0.06 | permeability | | surface |

 | | surface | | Slope |0.88 | application |

 | | application | | | | Too steep for |0.06

 | | | | | | sprinkler |

 | | | | | | application |

 | | | | | | |

MinF: | | | | | | |

 Minco---------------| 91 |Very limited | |Very limited | |Very limited |

 | | Seepage |1.00 | Slope |1.00 | Too steep for |1.00

 | | Too steep for |1.00 | Restricted |1.00 | surface |

 | | surface | | permeability | | application |

 | | application | | | | Too steep for |1.00

 | | | | | | sprinkler |

 | | | | | | application |

 | | | | | | |

MllA: | | | | | | |

 Miller--------------| 95 |Very limited | |Very limited | |Very limited |

 | | Flooding |1.00 | Restricted |1.00 | Restricted |1.00

 | | Too level |0.50 | permeability | | permeability |

 | | | | Flooding |0.60 | Flooding |0.60

 | | | | | | |
Logan County, Oklahoma 359

Agricultural Waste Management, Part II—Continued

________________________________________________________________________________________________________

 |Pct.| Overland flow | Rapid infiltration | Slow rate treatment

 Map symbol | of | of wastewater | of wastewater | of wastewater _____________________________________________________________________________

 and soil name |map | Rating class and |Value| Rating class and |Value| Rating class and |Value

 |unit| limiting features | | limiting features | | limiting features | ________________________________________________________________________________________________________

 | | | | | | |

MulC: | | | | | | |

 Mulhall-------------| 88 |Very limited | |Very limited | |Somewhat limited |

 | | Seepage |1.00 | Restricted |1.00 | Restricted |0.99

 | | | | permeability | | permeability |

 | | | | Depth to bedrock |1.00 | Too steep for |0.08

 | | | | | | surface |

 | | | | | | application |

 | | | | | | |

MulC2: | | | | | | |

 Mulhall-------------| 88 |Very limited | |Very limited | |Somewhat limited |

 | | Seepage |1.00 | Restricted |1.00 | Too steep for |0.08

 | | | | permeability | | surface |

 | | | | | | application |

 | | | | | | |

NavA: | | | | | | |

 Navina--------------| 96 |Very limited | |Very limited | |Not limited |

 | | Seepage |1.00 | Restricted |1.00 | |

 | | Too level |0.50 | permeability | | |

 | | | | | | |

NavB: | | | | | | |

 Navina--------------| 96 |Very limited | |Very limited | |Not limited |

 | | Seepage |1.00 | Restricted |1.00 | |

 | | | | permeability | | |

 | | | | | | |

NeGD4: | | | | | | |

 Newalla-------------| 75 |Very limited | |Very limited | |Very limited |

 | | Seepage |1.00 | Restricted |1.00 | Restricted |1.00

 | | Depth to bedrock |0.77 | permeability | | permeability |

 | | Too acid |0.31 | Depth to bedrock |1.00 | Depth to bedrock |0.77

 | | | | Slope |0.12 | Too steep for |0.32

 | | | | | | surface |

 | | | | | | application |

 | | | | | | Too acid |0.31

 | | | | | | |

 Gullied land--------| 15 |Not rated | |Not rated | |Not rated |

 | | | | | | |

NewB: | | | | | | |

 Newalla-------------| 90 |Very limited | |Very limited | |Very limited |

 | | Seepage |1.00 | Restricted |1.00 | Restricted |1.00

 | | Depth to bedrock |0.77 | permeability | | permeability |

 | | Too acid |0.31 | Depth to bedrock |1.00 | Depth to bedrock |0.77

 | | | | | | Too acid |0.31

 | | | | | | |

NorA: | | | | | | |

 Norge---------------| 93 |Very limited | |Very limited | |Somewhat limited |

 | | Seepage |1.00 | Restricted |1.00 | Restricted |0.21

 | | Too level |0.50 | permeability | | permeability |

 | | | | | | |

NorB: | | | | | | |

 Norge---------------| 90 |Very limited | |Very limited | |Somewhat limited |

 | | Seepage |1.00 | Restricted |1.00 | Restricted |0.21

 | | | | permeability | | permeability |

 | | | | | | |

NorC2: | | | | | | |

 Norge---------------| 88 |Very limited | |Very limited | |Somewhat limited |

 | | Seepage |1.00 | Restricted |1.00 | Restricted |0.21

 | | | | permeability | | permeability |

 | | | | | | Too steep for |0.08

 | | | | | | surface |

 | | | | | | application |

 | | | | | | |
360 Soil Survey

Agricultural Waste Management, Part II—Continued

________________________________________________________________________________________________________

 |Pct.| Overland flow | Rapid infiltration | Slow rate treatment

 Map symbol | of | of wastewater | of wastewater | of wastewater _____________________________________________________________________________

 and soil name |map | Rating class and |Value| Rating class and |Value| Rating class and |Value

 |unit| limiting features | | limiting features | | limiting features | ________________________________________________________________________________________________________

 | | | | | | |

OWHD: | | | | | | |

 Oil waste land------| 50 |Not rated | |Not rated | |Not rated |

 | | | | | | |

 Huska---------------| 30 |Very limited | |Very limited | |Very limited |

 | | Sodium content |1.00 | Restricted |1.00 | Sodium content |1.00

 | | Seepage |1.00 | permeability | | Restricted |1.00

 | | | | Depth to bedrock |1.00 | permeability |

 | | | | | | Salinity |0.01

 | | | | | | |

PieB: | | | | | | |

 Piedmont------------| 92 |Very limited | |Very limited | |Very limited |

 | | Depth to bedrock |1.00 | Restricted |1.00 | Depth to bedrock |1.00

 | | Seepage |0.69 | permeability | | Restricted |1.00

 | | | | Depth to bedrock |1.00 | permeability |

 | | | | | | |

PieC2: | | | | | | |

 Piedmont------------| 93 |Very limited | |Very limited | |Very limited |

 | | Depth to bedrock |1.00 | Restricted |1.00 | Depth to bedrock |1.00

 | | Seepage |0.69 | permeability | | Restricted |1.00

 | | | | Depth to bedrock |1.00 | permeability |

 | | | | | | Too steep for |0.08

 | | | | | | surface |

 | | | | | | application |

 | | | | | | |

PIT: | | | | | | |

 Pits----------------|100 |Not rated | |Not rated | |Not rated |

 | | | | | | |

PukA: | | | | | | |

 Pulaski-------------| 85 |Very limited | |Very limited | |Very limited |

 | | Flooding |1.00 | Flooding |1.00 | Flooding |1.00

 | | Seepage |1.00 | Restricted |0.31 | Filtering |0.01

 | | Too level |0.50 | permeability | | capacity |

 | | | | | | |

PulA: | | | | | | |

 Pulaski-------------| 85 |Very limited | |Somewhat limited | |Somewhat limited |

 | | Flooding |1.00 | Flooding |0.60 | Flooding |0.60

 | | Seepage |1.00 | Restricted |0.31 | Filtering |0.01

 | | Too level |0.50 | permeability | | capacity |

 | | | | | | |

RenB: | | | | | | |

 Renfrow-------------| 89 |Very limited | |Very limited | |Very limited |

 | | Seepage |1.00 | Restricted |1.00 | Restricted |1.00

 | | | | permeability | | permeability |

 | | | | | | |

RenC: | | | | | | |

 Renfrow-------------| 89 |Very limited | |Very limited | |Very limited |

 | | Seepage |1.00 | Restricted |1.00 | Restricted |1.00

 | | | | permeability | | permeability |

 | | | | Depth to bedrock |1.00 | Too steep for |0.08

 | | | | | | surface |

 | | | | | | application |

 | | | | | | |

RewC2: | | | | | | |

 Renfrow-------------| 84 |Somewhat limited | |Very limited | |Very limited |

 | | Seepage |0.69 | Restricted |1.00 | Restricted |1.00

 | | | | permeability | | permeability |

 | | | | Depth to bedrock |1.00 | Too steep for |0.08

 | | | | | | surface |

 | | | | | | application |

 | | | | | | |
Logan County, Oklahoma 361

Agricultural Waste Management, Part II—Continued

________________________________________________________________________________________________________

 |Pct.| Overland flow | Rapid infiltration | Slow rate treatment

 Map symbol | of | of wastewater | of wastewater | of wastewater _____________________________________________________________________________

 and soil name |map | Rating class and |Value| Rating class and |Value| Rating class and |Value

 |unit| limiting features | | limiting features | | limiting features | ________________________________________________________________________________________________________

 | | | | | | |

RinB: | | | | | | |

 Renthin-------------| 81 |Very limited | |Very limited | |Very limited |

 | | Seepage |1.00 | Restricted |1.00 | Restricted |1.00

 | | Depth to bedrock |0.14 | permeability | | permeability |

 | | | | Depth to bedrock |1.00 | Depth to bedrock |0.14

 | | | | | | |

RnnC2: | | | | | | |

 Renthin-------------| 80 |Very limited | |Very limited | |Very limited |

 | | Seepage |1.00 | Restricted |1.00 | Restricted |1.00

 | | Depth to bedrock |0.42 | permeability | | permeability |

 | | | | Depth to bedrock |1.00 | Depth to bedrock |0.42

 | | | | | | Too steep for |0.08

 | | | | | | surface |

 | | | | | | application |

 | | | | | | |

SDGD4: | | | | | | |

 Stephenville--------| 32 |Very limited | |Very limited | |Very limited |

 | | Seepage |1.00 | Restricted |1.00 | Depth to bedrock |1.00

 | | Depth to bedrock |1.00 | permeability | | Too steep for |0.92

 | | Too acid |0.42 | Depth to bedrock |1.00 | surface |

 | | Too steep for |0.06 | Slope |0.88 | application |

 | | surface | | | | Too acid |0.42

 | | application | | | | Restricted |0.21

 | | | | | | permeability |

 | | | | | | Too steep for |0.06

 | | | | | | sprinkler |

 | | | | | | application |

 | | | | | | |

 Darsil--------------| 31 |Very limited | |Very limited | |Very limited |

 | | Seepage |1.00 | Depth to bedrock |1.00 | Filtering |1.00

 | | Depth to bedrock |1.00 | Restricted |1.00 | capacity |

 | | Too steep for |0.06 | permeability | | Depth to bedrock |1.00

 | | surface | | Slope |0.88 | Too steep for |0.92

 | | application | | | | surface |

 | | | | | | application |

 | | | | | | Too steep for |0.06

 | | | | | | sprinkler |

 | | | | | | application |

 | | | | | | |

 Gullied land--------| 23 |Not rated | |Not rated | |Not rated |

 | | | | | | |

SDND: | | | | | | |

 Stephenville--------| 44 |Very limited | |Very limited | |Very limited |

 | | Seepage |1.00 | Restricted |1.00 | Depth to bedrock |1.00

 | | Depth to bedrock |1.00 | permeability | | Too steep for |0.92

 | | Too acid |0.42 | Depth to bedrock |1.00 | surface |

 | | Too steep for |0.06 | Slope |0.88 | application |

 | | surface | | | | Too acid |0.42

 | | application | | | | Restricted |0.21

 | | | | | | permeability |

 | | | | | | Too steep for |0.06

 | | | | | | sprinkler |

 | | | | | | application |

 | | | | | | |
362 Soil Survey

Agricultural Waste Management, Part II—Continued

________________________________________________________________________________________________________

 |Pct.| Overland flow | Rapid infiltration | Slow rate treatment

 Map symbol | of | of wastewater | of wastewater | of wastewater _____________________________________________________________________________

 and soil name |map | Rating class and |Value| Rating class and |Value| Rating class and |Value

 |unit| limiting features | | limiting features | | limiting features | ________________________________________________________________________________________________________

 | | | | | | |

SDND: | | | | | | |

 Darsil--------------| 29 |Very limited | |Very limited | |Very limited |

 | | Seepage |1.00 | Depth to bedrock |1.00 | Filtering |1.00

 | | Depth to bedrock |1.00 | Restricted |1.00 | capacity |

 | | Too steep for |0.06 | permeability | | Depth to bedrock |1.00

 | | surface | | Slope |0.88 | Too steep for |0.92

 | | application | | | | surface |

 | | | | | | application |

 | | | | | | Too steep for |0.06

 | | | | | | sprinkler |

 | | | | | | application |

 | | | | | | |

 Newalla-------------| 21 |Very limited | |Very limited | |Very limited |

 | | Seepage |1.00 | Restricted |1.00 | Restricted |1.00

 | | Depth to bedrock |0.61 | permeability | | permeability |

 | | Too acid |0.31 | Depth to bedrock |1.00 | Too steep for |0.92

 | | Too steep for |0.06 | Slope |0.88 | surface |

 | | surface | | | | application |

 | | application | | | | Depth to bedrock |0.61

 | | | | | | Too acid |0.31

 | | | | | | Too steep for |0.06

 | | | | | | sprinkler |

 | | | | | | application |

 | | | | | | |

SDND2: | | | | | | |

 Stephenville--------| 44 |Very limited | |Very limited | |Very limited |

 | | Seepage |1.00 | Restricted |1.00 | Depth to bedrock |1.00

 | | Depth to bedrock |1.00 | permeability | | Too steep for |0.92

 | | Too acid |0.42 | Depth to bedrock |1.00 | surface |

 | | Too steep for |0.06 | Slope |0.88 | application |

 | | surface | | | | Too acid |0.42

 | | application | | | | Restricted |0.21

 | | | | | | permeability |

 | | | | | | Too steep for |0.06

 | | | | | | sprinkler |

 | | | | | | application |

 | | | | | | |

 Darsil--------------| 33 |Very limited | |Very limited | |Very limited |

 | | Seepage |1.00 | Depth to bedrock |1.00 | Filtering |1.00

 | | Depth to bedrock |1.00 | Restricted |1.00 | capacity |

 | | Too steep for |0.06 | permeability | | Depth to bedrock |1.00

 | | surface | | Slope |0.88 | Too steep for |0.92

 | | application | | | | surface |

 | | | | | | application |

 | | | | | | Too steep for |0.06

 | | | | | | sprinkler |

 | | | | | | application |

 | | | | | | |

 Newalla-------------| 20 |Very limited | |Very limited | |Very limited |

 | | Seepage |1.00 | Restricted |1.00 | Restricted |1.00

 | | Depth to bedrock |1.00 | permeability | | permeability |

 | | Too acid |0.31 | Depth to bedrock |1.00 | Depth to bedrock |1.00

 | | Too steep for |0.06 | Slope |0.88 | Too steep for |0.92

 | | surface | | | | surface |

 | | application | | | | application |

 | | | | | | Too acid |0.31

 | | | | | | Too steep for |0.06

 | | | | | | sprinkler |

 | | | | | | application |

 | | | | | | |
Logan County, Oklahoma 363

Agricultural Waste Management, Part II—Continued

________________________________________________________________________________________________________

 |Pct.| Overland flow | Rapid infiltration | Slow rate treatment

 Map symbol | of | of wastewater | of wastewater | of wastewater _____________________________________________________________________________

 and soil name |map | Rating class and |Value| Rating class and |Value| Rating class and |Value

 |unit| limiting features | | limiting features | | limiting features | ________________________________________________________________________________________________________

 | | | | | | |

SlaB: | | | | | | |

 Slaughterville------| 95 |Very limited | |Somewhat limited | |Somewhat limited |

 | | Seepage |1.00 | Restricted |0.31 | Filtering |0.01

 | | | | permeability | | capacity |

 | | | | | | |

SlaD: | | | | | | |

 Slaughterville------| 95 |Very limited | |Somewhat limited | |Somewhat limited |

 | | Seepage |1.00 | Slope |0.88 | Too steep for |0.92

 | | Too steep for |0.06 | Restricted |0.31 | surface |

 | | surface | | permeability | | application |

 | | application | | | | Too steep for |0.06

 | | | | | | sprinkler |

 | | | | | | application |

 | | | | | | Filtering |0.01

 | | | | | | capacity |

 | | | | | | |

SlaF: | | | | | | |

 Slaughterville------| 95 |Very limited | |Very limited | |Very limited |

 | | Seepage |1.00 | Slope |1.00 | Too steep for |1.00

 | | Too steep for |1.00 | Restricted |0.31 | surface |

 | | surface | | permeability | | application |

 | | application | | | | Too steep for |1.00

 | | | | | | sprinkler |

 | | | | | | application |

 | | | | | | Filtering |0.01

 | | | | | | capacity |

 | | | | | | |

StDC: | | | | | | |

 Stephenville--------| 55 |Very limited | |Very limited | |Very limited |

 | | Seepage |1.00 | Restricted |1.00 | Depth to bedrock |1.00

 | | Depth to bedrock |1.00 | permeability | | Too acid |0.42

 | | Too acid |0.42 | Depth to bedrock |1.00 | Restricted |0.21

 | | | | | | permeability |

 | | | | | | Too steep for |0.08

 | | | | | | surface |

 | | | | | | application |

 | | | | | | Filtering |0.01

 | | | | | | capacity |

 | | | | | | |

 Darsil--------------| 30 |Very limited | |Very limited | |Very limited |

 | | Seepage |1.00 | Depth to bedrock |1.00 | Filtering |1.00

 | | Depth to bedrock |1.00 | Restricted |1.00 | capacity |

 | | | | permeability | | Depth to bedrock |1.00

 | | | | | | |

StDC2: | | | | | | |

 Stephenville--------| 55 |Very limited | |Very limited | |Very limited |

 | | Seepage |1.00 | Restricted |1.00 | Depth to bedrock |1.00

 | | Depth to bedrock |1.00 | permeability | | Too acid |0.42

 | | Too acid |0.42 | Depth to bedrock |1.00 | Restricted |0.21

 | | | | | | permeability |

 | | | | | | Filtering |0.01

 | | | | | | capacity |

 | | | | | | |

 Darsil--------------| 30 |Very limited | |Very limited | |Very limited |

 | | Seepage |1.00 | Depth to bedrock |1.00 | Filtering |1.00

 | | Depth to bedrock |1.00 | Restricted |1.00 | capacity |

 | | | | permeability | | Depth to bedrock |1.00

 | | | | | | |
364 Soil Survey

Agricultural Waste Management, Part II—Continued

________________________________________________________________________________________________________

 |Pct.| Overland flow | Rapid infiltration | Slow rate treatment

 Map symbol | of | of wastewater | of wastewater | of wastewater _____________________________________________________________________________

 and soil name |map | Rating class and |Value| Rating class and |Value| Rating class and |Value

 |unit| limiting features | | limiting features | | limiting features | ________________________________________________________________________________________________________

 | | | | | | |

StDE: | | | | | | |

 Stephenville--------| 50 |Very limited | |Very limited | |Very limited |

 | | Seepage |1.00 | Slope |1.00 | Depth to bedrock |1.00

 | | Depth to bedrock |1.00 | Restricted |1.00 | Too steep for |1.00

 | | Too steep for |1.00 | permeability | | surface |

 | | surface | | Depth to bedrock |1.00 | application |

 | | application | | | | Too steep for |1.00

 | | Too acid |0.42 | | | sprinkler |

 | | | | | | application |

 | | | | | | Too acid |0.42

 | | | | | | Restricted |0.21

 | | | | | | permeability |

 | | | | | | |

 Darsil--------------| 40 |Very limited | |Very limited | |Very limited |

 | | Seepage |1.00 | Depth to bedrock |1.00 | Filtering |1.00

 | | Depth to bedrock |1.00 | Restricted |1.00 | capacity |

 | | Too steep for |0.06 | permeability | | Depth to bedrock |1.00

 | | surface | | Slope |0.88 | Too steep for |0.92

 | | application | | | | surface |

 | | | | | | application |

 | | | | | | Too steep for |0.06

 | | | | | | sprinkler |

 | | | | | | application |

 | | | | | | |

SteB: | | | | | | |

 Stephenville--------| 94 |Very limited | |Very limited | |Very limited |

 | | Seepage |1.00 | Restricted |1.00 | Depth to bedrock |1.00

 | | Depth to bedrock |1.00 | permeability | | Too acid |0.42

 | | Too acid |0.42 | Depth to bedrock |1.00 | Restricted |0.21

 | | | | | | permeability |

 | | | | | | Filtering |0.01

 | | | | | | capacity |

 | | | | | | |

SteC2: | | | | | | |

 Stephenville--------| 92 |Very limited | |Very limited | |Very limited |

 | | Seepage |1.00 | Restricted |1.00 | Depth to bedrock |1.00

 | | Depth to bedrock |1.00 | permeability | | Too acid |0.42

 | | Too acid |0.42 | Depth to bedrock |1.00 | Restricted |0.21

 | | | | | | permeability |

 | | | | | | Too steep for |0.08

 | | | | | | surface |

 | | | | | | application |

 | | | | | | Filtering |0.01

 | | | | | | capacity |

 | | | | | | |

SUND: | | | | | | |

 Stephenville--------| 35 |Very limited | |Very limited | |Very limited |

 | | Seepage |1.00 | Restricted |1.00 | Depth to bedrock |1.00

 | | Depth to bedrock |1.00 | permeability | | Too steep for |0.92

 | | Too acid |0.42 | Depth to bedrock |1.00 | surface |

 | | Too steep for |0.06 | Slope |0.88 | application |

 | | surface | | | | Too acid |0.42

 | | application | | | | Restricted |0.21

 | | | | | | permeability |

 | | | | | | Too steep for |0.06

 | | | | | | sprinkler |

 | | | | | | application |

 | | | | | | |

 Urban land----------| 30 |Not rated | |Not rated | |Not rated |

 | | | | | | |
Logan County, Oklahoma 365

Agricultural Waste Management, Part II—Continued

________________________________________________________________________________________________________

 |Pct.| Overland flow | Rapid infiltration | Slow rate treatment

 Map symbol | of | of wastewater | of wastewater | of wastewater _____________________________________________________________________________

 and soil name |map | Rating class and |Value| Rating class and |Value| Rating class and |Value

 |unit| limiting features | | limiting features | | limiting features | ________________________________________________________________________________________________________

 | | | | | | |

SUND: | | | | | | |

 Newalla-------------| 15 |Very limited | |Very limited | |Very limited |

 | | Seepage |1.00 | Restricted |1.00 | Restricted |1.00

 | | Too acid |0.31 | permeability | | permeability |

 | | Too steep for |0.06 | Depth to bedrock |1.00 | Too steep for |0.92

 | | surface | | Slope |0.88 | surface |

 | | application | | | | application |

 | | Depth to bedrock |0.01 | | | Too acid |0.31

 | | | | | | Too steep for |0.06

 | | | | | | sprinkler |

 | | | | | | application |

 | | | | | | Depth to bedrock |0.01

 | | | | | | |

TelB: | | | | | | |

 Teller--------------| 96 |Very limited | |Very limited | |Somewhat limited |

 | | Seepage |1.00 | Restricted |1.00 | Filtering |0.01

 | | | | permeability | | capacity |

 | | | | | | |

TelC2: | | | | | | |

 Teller--------------| 96 |Very limited | |Very limited | |Somewhat limited |

 | | Seepage |1.00 | Restricted |1.00 | Too steep for |0.08

 | | | | permeability | | surface |

 | | | | | | application |

 | | | | | | Filtering |0.01

 | | | | | | capacity |

 | | | | | | |

TriA: | | | | | | |

 Tribbey-------------| 90 |Very limited | |Very limited | |Very limited |

 | | Flooding |1.00 | Flooding |1.00 | Flooding |1.00

 | | Seepage |1.00 | Depth to |1.00 | Depth to |1.00

 | | Depth to |1.00 | saturated zone | | saturated zone |

 | | saturated zone | | Restricted |0.31 | Filtering |0.01

 | | Too level |0.50 | permeability | | capacity |

 | | | | | | |

URB: | | | | | | |

 Urban land----------|100 |Not rated | |Not rated | |Not rated |

 | | | | | | |

W: | | | | | | |

 Water---------------|100 |Not rated | |Not rated | |Not rated |

 | | | | | | |

YaaA, YahA: | | | | | | |

 Yahola--------------| 87 |Very limited | |Somewhat limited | |Somewhat limited |

 | | Flooding |1.00 | Flooding |0.60 | Flooding |0.60

 | | Seepage |1.00 | Restricted |0.31 | Filtering |0.01

 | | Too level |0.50 | permeability | | capacity |

 | | | | | | |

ZaHC: | | | | | | |

 Zaneis--------------| 55 |Very limited | |Very limited | |Somewhat limited |

 | | Seepage |1.00 | Restricted |1.00 | Restricted |0.99

 | | Depth to bedrock |0.26 | permeability | | permeability |

 | | | | Depth to bedrock |1.00 | Depth to bedrock |0.26

 | | | | | | Too steep for |0.08

 | | | | | | surface |

 | | | | | | application |

 | | | | | | Filtering |0.01

 | | | | | | capacity |

 | | | | | | |
366

Agricultural Waste Management, Part II—Continued

________________________________________________________________________________________________________

 |Pct.| Overland flow | Rapid infiltration | Slow rate treatment

 Map symbol | of | of wastewater | of wastewater | of wastewater _____________________________________________________________________________

 and soil name |map | Rating class and |Value| Rating class and |Value| Rating class and |Value

 |unit| limiting features | | limiting features | | limiting features | ________________________________________________________________________________________________________

 | | | | | | |

ZaHC: | | | | | | |

 Huska---------------| 25 |Very limited | |Very limited | |Very limited |

 | | Sodium content |1.00 | Restricted |1.00 | Sodium content |1.00

 | | Seepage |1.00 | permeability | | Restricted |1.00

 | | | | Depth to bedrock |1.00 | permeability |

 | | | | | | Too steep for |0.08

 | | | | | | surface |

 | | | | | | application |

 | | | | | | Salinity |0.01

 | | | | | | |

ZanB: | | | | | | |

 Zaneis--------------| 87 |Very limited | |Very limited | |Somewhat limited |

 | | Seepage |1.00 | Restricted |1.00 | Restricted |0.99

 | | Depth to bedrock |0.88 | permeability | | permeability |

 | | | | Depth to bedrock |1.00 | Depth to bedrock |0.88

 | | | | | | |

ZanC: | | | | | | |

 Zaneis--------------| 87 |Very limited | |Very limited | |Somewhat limited |

 | | Seepage |1.00 | Restricted |1.00 | Restricted |0.99

 | | Depth to bedrock |0.71 | permeability | | permeability |

 | | | | Depth to bedrock |1.00 | Depth to bedrock |0.71

 | | | | | | Too steep for |0.08

 | | | | | | surface |

 | | | | | | application |

 | | | | | | |

ZanC2: | | | | | | |

 Zaneis--------------| 87 |Very limited | |Very limited | |Somewhat limited |

 | | Seepage |1.00 | Restricted |1.00 | Restricted |0.99

 | | Depth to bedrock |0.05 | permeability | | permeability |

 | | | | Depth to bedrock |1.00 | Too steep for |0.08

 | | | | | | surface |

 | | | | | | application |

 | | | | | | Depth to bedrock |0.05

 | | | | | | | ________________________________________________________________________________________________________
367

Data relating to soil properties are collected during the course of the soil survey.

The data and the estimates of soil and water features, listed in tables, are explained on

the following pages.

Soil properties are determined by field examination of the soils and by laboratory

index testing of some benchmark soils. Established standard procedures are followed.

During the survey, many shallow borings are made and examined to identify and

classify the soils and to delineate them on the soil maps. Samples are taken from

some typical profiles and tested in the laboratory to determine grain-size distribution,

plasticity, and compaction characteristics.

Estimates of soil properties are based on field examinations, on laboratory tests of

samples from the survey area, and on laboratory tests of samples of similar soils in

nearby areas. Tests verify field observations, verify properties that cannot be estimated

accurately by field observation, and help to characterize key soils.

The estimates of soil properties shown in the tables include the range of grain-size

distribution and Atterberg limits, the engineering classification, and the physical and

chemical properties of the major layers of each soil. Pertinent soil and water features

also are given.

Engineering Index Properties

The table “Engineering Index Properties” gives estimates of the engineering

classification and of the range of index properties for the major layers of each soil in

the survey area. Most soils have layers of contrasting properties within the upper 5 or

6 feet.

Depth to the upper and lower boundaries of each layer is indicated. The range in

depth and information on other properties of each layer are given in the section “Soil

Series and Their Morphology.”

Texture is given in the standard terms used by the U.S. Department of Agriculture.

These terms are defined according to percentages of sand, silt, and clay in the fraction

of the soil that is less than 2 millimeters in diameter. “Loam,” for example, is soil that is

7 to 27 percent clay, 28 to 50 percent silt, and less than 52 percent sand. If the content

of particles coarser than sand is as much as 15 percent, an appropriate modifier is

added, for example, “gravelly.” Textural terms are defined in the Glossary.

Classification of the soils is determined according to the system adopted by the

American Association of State Highway and Transportation Officials (1) and the

Unified soil classification system (2).

The Unified system classifies soils according to properties that affect their use as

construction material. Soils are classified according to grain-size distribution of the

fraction less than 3 inches in diameter and according to plasticity index, liquid limit,

and organic matter content. Sandy and gravelly soils are identified as GW, GP, GM,

GC, SW, SP, SM, and SC; silty and clayey soils as ML, CL, OL, MH, CH, and OH; and

highly organic soils as PT. Soils exhibiting engineering properties of two groups can

have a dual classification, for example, SP-SM.

The AASHTO system classifies soils according to those properties that affect

roadway construction and maintenance. In this system, the fraction of a mineral soil

Soil Properties
368 Soil Survey

that is less than 3 inches in diameter is classified in one of seven groups from A-1

through A-7 on the basis of grain-size distribution, liquid limit, and plasticity index. Soils

in group A-1 are coarse grained and low in content of fines (silt and clay). At the other

extreme, soils in group A-7 are fine grained. Highly organic soils are classified in group

A-8 on the basis of visual inspection.

If laboratory data are available, the A-1, A-2, and A-7 groups are further classified

as A-1-a, A-1-b, A-2-4, A-2-5, A-2-6, A-2-7, A-7-5, or A-7-6. As an additional

refinement, the suitability of a soil as subgrade material can be indicated by a group

index number. Group index numbers range from 0 for the best subgrade material to 20

or higher for the poorest.

Rock fragments larger than 10 inches in diameter and 3 to 10 inches in diameter

are indicated as a percentage of the total soil on a dry-weight basis. The percentages

are estimates determined mainly by converting volume percentage in the field to

weight percentage.

Percentage (of soil particles) passing designated sieves is the percentage of the

soil fraction less than 3 inches in diameter based on an ovendry weight. The sieves,

numbers 4, 10, 40, and 200 (USA Standard Series), have openings of 4.76, 2.00,

0.420, and 0.074 millimeters, respectively. Estimates are based on laboratory tests of

soils sampled in the survey area and in nearby areas and on estimates made in the

field.

Liquid limit and plasticity index (Atterberg limits) indicate the plasticity

characteristics of a soil. The estimates are based on test data from the survey area or

from nearby areas and on field examination.
Logan County, Oklahoma 369 Engineering Index Properties (Absence of an entry indicates that data were not estimated) _____________________________________________________________________________________________________________________________ | | | Classification | Fragments | Percentage passing | | Map symbol | Depth | USDA texture | | | sieve number-- |Liquid| Plas- _____________________________________________________________________ and soil name | | | | | >10 | 3-10 | | | | |limit |ticity | | | Unified | AASHTO |inches|inches| 4 | 10 | 40 | 200 | |index _____________________________________________________________________________________________________________________________ | In | | | | Pct | Pct | | | | | Pct | __ ___ ___ ___ | | | | | | | | | | | | AspA: | | | | | | | | | | | | Ashport---------| 0-10 |Silt loam |CL, CL-ML, ML|A-4, A-6 | 0 | 0 | 100 | 100 |96-100|70-97 |22-37 | 2-13 | 10-22 |Silt loam, |CL |A-4, A-6, A-7| 0 | 0 | 100 | 100 |96-100|75-98 |30-43 | 8-20 | | loam, silty | | | | | | | | | | | | clay loam | | | | | | | | | | | 22-44 |Silt loam, |CL |A-4, A-6, A-7| 0 | 0 | 100 | 100 |96-100|75-98 |30-43 | 8-20 | | loam, silty | | | | | | | | | | | | clay loam | | | | | | | | | | | 44-80 |Silt loam, |CL |A-4, A-6, A-7| 0 | 0 | 100 | 100 |96-100|75-98 |30-43 | 8-20 | | loam, silty | | | | | | | | | | | | clay loam | | | | | | | | | | | | | | | | | | | | | | AstA: | | | | | | | | | | | | Ashport---------| 0-11 |Silt loam |CL |A-4, A-6 | 0 | 0 | 100 | 100 |96-100|70-97 |27-42 | 9-18 | 11-30 |Silt loam, loam|CL |A-6, A-7 | 0 | 0 | 100 | 100 |96-100|75-98 |30-47 |12-25 | 30-36 |Silt loam, |CL |A-6, A-7 | 0 | 0 | 100 | 100 |96-100|75-98 |30-47 |12-25 | | loam, silty | | | | | | | | | | | | clay loam | | | | | | | | | | | 36-52 |Silt loam, |CL |A-7, A-6 | 0 | 0 | 100 | 100 |96-100|75-98 |30-47 |12-25 | | loam, silty | | | | | | | | | | | | clay loam | | | | | | | | | | | 52-67 |Silt loam, |CL |A-6, A-7 | 0 | 0 | 100 | 100 |96-100|75-98 |30-47 |12-25 | | loam, silty | | | | | | | | | | | | clay loam | | | | | | | | | | | 67-80 |Silt loam, |CL |A-6, A-7 | 0 | 0 | 100 | 100 |96-100|75-98 |30-47 |12-25 | | loam, silty | | | | | | | | | | | | clay loam | | | | | | | | | | | | | | | | | | | | | |
370 Soil Survey Engineering Index Properties—Continued _____________________________________________________________________________________________________________________________ | | | Classification | Fragments | Percentage passing | | Map symbol | Depth | USDA texture | | | sieve number-- |Liquid| Plas- _____________________________________________________________________ and soil name | | | | | >10 | 3-10 | | | | |limit |ticity | | | Unified | AASHTO |inches|inches| 4 | 10 | 40 | 200 | |index _____________________________________________________________________________________________________________________________ | In | | | | Pct | Pct | | | | | Pct | __ ___ ___ ___ | | | | | | | | | | | | BetA: | | | | | | | | | | | | Bethany---------| 0-8 |Silt loam |CL, CL-ML, ML|A-4, A-6 | 0 | 0 | 100 | 100 |96-100|80-98 |21-37 | 2-13 | 8-18 |Silt loam, |CL |A-6, A-7 | 0 | 0 | 100 | 100 |96-100|80-98 |33-43 |12-26 | | silty clay | | | | | | | | | | | | loam | | | | | | | | | | | 18-28 |Silty clay |CL |A-6, A-7 | 0 | 0 | 100 | 100 |96-100|80-98 |33-43 |12-26 | | loam, clay | | | | | | | | | | | | loam | | | | | | | | | | | 28-46 |Silty clay, |CH, CL |A-6, A-7 | 0 | 0 | 100 |96-100|96-100|90-99 |37-60 |15-34 | | clay, silty | | | | | | | | | | | | clay loam, | | | | | | | | | | | | clay loam | | | | | | | | | | | 46-62 |Silty clay, |CH, CL |A-6, A-7 | 0 | 0 | 100 |96-100|96-100|90-99 |37-60 |15-34 | | clay, silty | | | | | | | | | | | | clay loam, | | | | | | | | | | | | clay loam | | | | | | | | | | | 62-80 |Silty clay, |CH, CL |A-6, A-7 | 0 | 0 | 100 |96-100|96-100|90-99 |37-60 |15-34 | | clay, silty | | | | | | | | | | | | clay loam, | | | | | | | | | | | | clay loam | | | | | | | | | | | | | | | | | | | | | | BetB: | | | | | | | | | | | | Bethany---------| 0-10 |Silt loam |CL, CL-ML, ML|A-4, A-6 | 0 | 0 | 100 | 100 |96-100|80-98 |21-37 | 2-13 | 10-22 |Silty clay |CL |A-6, A-7 | 0 | 0 | 100 | 100 |96-100|80-98 |33-43 |12-26 | | loam, clay | | | | | | | | | | | | loam | | | | | | | | | | | 22-31 |Silty clay, |CH, CL |A-6, A-7 | 0 | 0 | 100 |96-100|96-100|90-99 |37-60 |15-34 | | clay, silty | | | | | | | | | | | | clay loam, | | | | | | | | | | | | clay loam | | | | | | | | | | | 31-51 |Silty clay, |CH, CL |A-6, A-7 | 0 | 0 | 100 |96-100|96-100|90-99 |37-60 |15-34 | | clay, silty | | | | | | | | | | | | clay loam, | | | | | | | | | | | | clay loam | | | | | | | | | | | 51-74 |Silty clay, |CH, CL |A-6, A-7 | 0 | 0 | 100 |96-100|96-100|90-99 |37-60 |15-34 | | clay, silty | | | | | | | | | | | | clay loam, | | | | | | | | | | | | clay loam | | | | | | | | | | | 74-80 |Silty clay |CH, CL |A-6, A-7 | 0 | 0 | 100 |96-100|96-100|90-99 |37-60 |15-34 | | loam, clay, | | | | | | | | | | | | silty clay, | | | | | | | | | | | | clay loam | | | | | | | | | | | | | | | | | | | | | |
Logan County, Oklahoma 371 Engineering Index Properties—Continued _____________________________________________________________________________________________________________________________ | | | Classification | Fragments | Percentage passing | | Map symbol | Depth | USDA texture | | | sieve number-- |Liquid| Plas- _____________________________________________________________________ and soil name | | | | | >10 | 3-10 | | | | |limit |ticity | | | Unified | AASHTO |inches|inches| 4 | 10 | 40 | 200 | |index _____________________________________________________________________________________________________________________________ | In | | | | Pct | Pct | | | | | Pct | __ ___ ___ ___ | | | | | | | | | | | | BocA: | | | | | | | | | | | | Bocox-----------| 0-11 |Loamy fine sand|SM |A-2 | 0 | 0 | 100 |98-100|90-100|15-35 | 0-14 | NP | 11-20 |Loamy fine sand|SM |A-2 | 0 | 0 | 100 |98-100|90-100|15-35 | 0-14 | NP | 20-33 |Loamy fine sand|SM |A-2 | 0 | 0 | 100 |98-100|90-100|15-35 | 0-14 | NP | 33-52 |Sandy clay |CL, CL-ML, |A-4, A-6 | 0 | 0 | 100 |98-100|90-100|36-65 |14-37 |NP-16 | | loam, fine | SC-SM | | | | | | | | | | | sandy loam | | | | | | | | | | | 52-65 |Fine sandy |CL, CL-ML, |A-4, A-6 | 0 | 0 | 100 |98-100|90-100|36-65 |14-37 |NP-16 | | loam, sandy | SC-SM | | | | | | | | | | | clay loam | | | | | | | | | | | 65-80 |Fine sandy |CL, CL-ML, |A-4, A-6 | 0 | 0 | 100 |98-100|90-100|36-65 |14-37 |NP-16 | | loam, sandy | SC-SM | | | | | | | | | | | clay loam | | | | | | | | | | | | | | | | | | | | | | BtlA: | | | | | | | | | | | | Bathel----------| 0-12 |Loamy sand |SM |A-2 | 0 | 0 | 100 |98-100|90-100|15-35 | 0-14 | NP | 12-18 |Fine sandy |CL-ML, ML, |A-2, A-4 | 0 | 0 | 100 |98-100|90-100|15-60 | 0-26 |NP-7 | | loam, loamy | SC-SM, SM | | | | | | | | | | | fine sand | | | | | | | | | | | 18-22 |Sandy clay loam|CL, SC |A-4, A-6 | 0 | 0 | 100 | 100 |90-100|36-65 |25-37 | 7-16 | 22-45 |Sandy clay |CL, CL-ML, |A-4, A-6, A-7| 0 | 0 | 100 |98-100|90-100|36-75 |14-45 |NP-22 | | loam, fine | SC, SC-SM | | | | | | | | | | | sandy loam, | | | | | | | | | | | | sandy clay | | | | | | | | | | | 45-80 |Fine sandy |CL-ML, ML, |A-2, A-4 | 0 | 0 | 100 |98-100|90-100|15-60 | 0-26 |NP-7 | | loam, sandy | SC-SM, SM | | | | | | | | | | | loam, loamy | | | | | | | | | | | | fine sand | | | | | | | | | | | | | | | | | | | | | |
372 Soil Survey Engineering Index Properties—Continued _____________________________________________________________________________________________________________________________ | | | Classification | Fragments | Percentage passing | | Map symbol | Depth | USDA texture | | | sieve number-- |Liquid| Plas- _____________________________________________________________________ and soil name | | | | | >10 | 3-10 | | | | |limit |ticity | | | Unified | AASHTO |inches|inches| 4 | 10 | 40 | 200 | |index _____________________________________________________________________________________________________________________________ | In | | | | Pct | Pct | | | | | Pct | __ ___ ___ ___ | | | | | | | | | | | | CaaA: | | | | | | | | | | | | Canadian--------| 0-10 |Fine sandy loam|CL-ML, ML, |A-4 | 0 | 0 | 100 | 100 |94-100|36-60 |14-26 |NP-7 | | | SC-SM, SM | | | | | | | | | | 10-19 |Fine sandy loam|CL-ML, ML, |A-4 | 0 | 0 | 100 | 100 |94-100|36-60 |14-26 |NP-7 | | | SC-SM, SM | | | | | | | | | | 19-31 |Fine sandy |CL-ML, ML, |A-4 | 0 | 0 | 100 | 100 |94-100|36-85 |14-29 |NP-7 | | loam, loam, | SC-SM, SM | | | | | | | | | | | sandy loam | | | | | | | | | | | 31-41 |Fine sandy |CL-ML, ML, |A-4 | 0 | 0 | 100 | 100 |94-100|36-85 |14-29 |NP-7 | | loam, loam, | SC-SM, SM | | | | | | | | | | | sandy loam | | | | | | | | | | | 41-55 |Fine sandy |CL-ML, ML, |A-2, A-3, A-4| 0 | 0 | 100 | 100 |82-100| 5-85 | 0-29 |NP-7 | | loam, loam, | SC-SM, SM | | | | | | | | | | | loamy fine | | | | | | | | | | | | sand | | | | | | | | | | | 55-80 |Fine sandy |CL-ML, ML, |A-2, A-3, A-4| 0 | 0 | 100 | 100 |82-100| 5-85 | 0-29 |NP-7 | | loam, loam, | SC-SM, SM | | | | | | | | | | | loamy fine | | | | | | | | | | | | sand | | | | | | | | | | | | | | | | | | | | | | CAID: | | | | | | | | | | | | Coyle-----------| 0-10 |Loam |CL, CL-ML |A-4, A-6 | 0 | 0 | 100 | 100 |96-100|65-85 |25-35 | 4-13 | 10-19 |Clay loam, |CL, SC |A-2, A-4, A-6| 0 | 0 |85-100|85-100|80-100|30-90 |25-40 | 7-18 | | sandy clay | | | | | | | | | | | | loam | | | | | | | | | | | 19-36 |Clay loam, |CL, CL-ML, |A-2, A-4, A-6| 0 | 0-45 |55-100|55-100|50-100|20-90 |22-40 | 4-18 | | sandy clay | SC, SC-SM | | | | | | | | | | | loam, fine | | | | | | | | | | | | sandy loam, | | | | | | | | | | | | gravelly clay | | | | | | | | | | | | loam, gravelly| | | | | | | | | | | | sandy clay | | | | | | | | | | | | loam, gravelly| | | | | | | | | | | | fine sandy | | | | | | | | | | | | loam | | | | | | | | | | | 36-40 |Bedrock | | | --- | --- | --- | --- | --- | --- | --- | --- | | | | | | | | | | | |
Logan County, Oklahoma 373 Engineering Index Properties—Continued _____________________________________________________________________________________________________________________________ | | | Classification | Fragments | Percentage passing | | Map symbol | Depth | USDA texture | | | sieve number-- |Liquid| Plas- _____________________________________________________________________ and soil name | | | | | >10 | 3-10 | | | | |limit |ticity | | | Unified | AASHTO |inches|inches| 4 | 10 | 40 | 200 | |index _____________________________________________________________________________________________________________________________ | In | | | | Pct | Pct | | | | | Pct | __ ___ ___ ___ | | | | | | | | | | | | CAID: | | | | | | | | | | | | Ashport---------| 0-11 |Silt loam |CL, CL-ML, ML|A-4, A-6 | 0 | 0 | 100 | 100 |96-100|70-97 |22-37 | 2-13 | 11-26 |Silty clay |CL |A-4, A-6, A-7| 0 | 0 | 100 | 100 |96-100|75-98 |30-43 | 8-20 | | loam, loam, | | | | | | | | | | | | silt loam | | | | | | | | | | | 26-46 |Loam, silty |CL |A-4, A-6, A-7| 0 | 0 | 100 | 100 |96-100|75-98 |30-43 | 8-20 | | clay loam, | | | | | | | | | | | | silt loam | | | | | | | | | | | 46-63 |Silty clay |CL |A-4, A-6, A-7| 0 | 0 | 100 | 100 |96-100|75-98 |30-43 | 8-20 | | loam, loam, | | | | | | | | | | | | silt loam | | | | | | | | | | | 63-80 |Silty clay |CL |A-4, A-6, A-7| 0 | 0 | 100 | 100 |96-100|75-98 |30-43 | 8-20 | | loam, | | | | | | | | | | | | stratified | | | | | | | | | | | | loamy fine | | | | | | | | | | | | sand to loam | | | | | | | | | | | | to silty clay,| | | | | | | | | | | | silt loam | | | | | | | | | | | | | | | | | | | | | | Ironmound-------| 0-6 |Loam |CL, CL-ML |A-4, A-6 | 0 | 0 |85-100|85-100|76-100|52-97 |24-35 | 4-13 | 6-18 |Loam, fine |CL, CL-ML, ML|A-4, A-6 | 0 | 0 |85-100|80-100|76-100|52-85 |14-35 | 2-18 | | sandy loam, | | | | | | | | | | | | clay loam | | | | | | | | | | | 18-24 |Bedrock | | | --- | --- | --- | --- | --- | --- | --- | --- | | | | | | | | | | | | CoIC2: | | | | | | | | | | | | Coyle-----------| 0-11 |Loam |CL, CL-ML |A-4, A-6 | 0 | 0 | 100 | 100 |96-100|65-85 |25-35 | 4-13 | 11-26 |Clay loam, |CL, SC |A-2, A-4, A-6| 0 | 0 |85-100|85-100|80-100|30-90 |25-40 | 7-18 | | sandy clay | | | | | | | | | | | | loam | | | | | | | | | | | 26-37 |Clay loam, |CL, CL-ML, |A-2, A-4, A-6| 0 | 0-45 |55-100|55-100|50-100|20-90 |22-40 | 4-18 | | sandy clay | SC, SC-SM | | | | | | | | | | | loam, fine | | | | | | | | | | | | sandy loam | | | | | | | | | | | 37-40 |Bedrock | | | --- | --- | --- | --- | --- | --- | --- | --- | | | | | | | | | | | | Ironmound-------| 0-5 |Loam |CL, CL-ML |A-4, A-6 | 0 | 0 |85-100|85-100|76-100|52-97 |24-35 | 4-13 | 5-17 |Loam, fine |CL, CL-ML, ML|A-4, A-6 | 0 | 0 |85-100|80-100|76-100|52-85 |14-35 | 2-18 | | sandy loam, | | | | | | | | | | | | clay loam | | | | | | | | | | | 17-24 |Bedrock | | | --- | --- | --- | --- | --- | --- | --- | --- | | | | | | | | | | | |
374 Soil Survey Engineering Index Properties—Continued _____________________________________________________________________________________________________________________________ | | | Classification | Fragments | Percentage passing | | Map symbol | Depth | USDA texture | | | sieve number-- |Liquid| Plas- _____________________________________________________________________ and soil name | | | | | >10 | 3-10 | | | | |limit |ticity | | | Unified | AASHTO |inches|inches| 4 | 10 | 40 | 200 | |index _____________________________________________________________________________________________________________________________ | In | | | | Pct | Pct | | | | | Pct | __ ___ ___ ___ | | | | | | | | | | | | CoUB: | | | | | | | | | | | | Coyle-----------| 0-8 |Loam |CL, CL-ML |A-4, A-6 | 0 | 0 | 100 | 100 |96-100|65-85 |25-35 | 4-13 | 8-14 |Loam, fine |CL, CL-ML, |A-4, A-6 | 0 | 0 | 100 |98-100|94-100|36-85 |22-35 | 4-13 | | sandy loam | SC, SC-SM | | | | | | | | | | 14-22 |Clay loam, |CL, SC |A-2, A-4, A-6| 0 | 0 |85-100|85-100|80-100|30-90 |25-40 | 7-18 | | sandy clay | | | | | | | | | | | | loam | | | | | | | | | | | 22-30 |Bedrock | | | --- | --- | --- | --- | --- | --- | --- | --- | | | | | | | | | | | | Urban land. | | | | | | | | | | | | | | | | | | | | | | | | CoUC: | | | | | | | | | | | | Coyle-----------| 0-8 |Loam |CL, CL-ML |A-4, A-6 | 0 | 0 | 100 | 100 |96-100|65-85 |25-35 | 4-13 | 8-12 |Loam, fine |CL, CL-ML, |A-4, A-6 | 0 | 0 | 100 |98-100|94-100|36-85 |22-35 | 4-13 | | sandy loam | SC, SC-SM | | | | | | | | | | 12-22 |Clay loam, |CL, SC |A-2, A-4, A-6| 0 | 0 |85-100|85-100|80-100|30-90 |25-40 | 7-18 | | sandy clay | | | | | | | | | | | | loam | | | | | | | | | | | 22-29 |Clay loam, |CL, CL-ML, |A-2, A-4, A-6| 0 | 0-45 |55-100|55-100|50-100|20-90 |22-40 | 4-18 | | sandy clay | SC, SC-SM | | | | | | | | | | | loam, fine | | | | | | | | | | | | sandy loam | | | | | | | | | | | 29-40 |Bedrock | | | --- | --- | --- | --- | --- | --- | --- | --- | | | | | | | | | | | | Urban land. | | | | | | | | | | | | | | | | | | | | | | | | CoyB: | | | | | | | | | | | | Coyle-----------| 0-6 |Loam |CL, CL-ML |A-4, A-6 | 0 | 0 | 100 | 100 |96-100|65-85 |25-35 | 4-13 | 6-11 |Loam, fine |CL, CL-ML, |A-4, A-6 | 0 | 0 | 100 |98-100|94-100|36-85 |22-35 | 4-13 | | sandy loam | SC, SC-SM | | | | | | | | | | 11-18 |Clay loam, |CL, SC |A-2, A-4, A-6| 0 | 0 |85-100|85-100|80-100|30-90 |25-40 | 7-18 | | sandy clay | | | | | | | | | | | | loam | | | | | | | | | | | 18-25 |Clay loam, |CL, CL-ML, |A-2, A-4, A-6| 0 | 0-45 |55-100|55-100|50-100|20-90 |22-40 | 4-18 | | sandy clay | SC, SC-SM | | | | | | | | | | | loam, fine | | | | | | | | | | | | sandy loam | | | | | | | | | | | 25-31 |Clay loam, |CL, CL-ML, |A-2, A-4, A-6| 0 | 0-45 |55-100|55-100|50-100|20-90 |22-40 | 4-18 | | sandy clay | SC, SC-SM | | | | | | | | | | | loam, fine | | | | | | | | | | | | sandy loam | | | | | | | | | | | 31-42 |Bedrock | | | --- | --- | --- | --- | --- | --- | --- | --- | | | | | | | | | | | |
Logan County, Oklahoma 375 Engineering Index Properties—Continued _____________________________________________________________________________________________________________________________ | | | Classification | Fragments | Percentage passing | | Map symbol | Depth | USDA texture | | | sieve number-- |Liquid| Plas- _____________________________________________________________________ and soil name | | | | | >10 | 3-10 | | | | |limit |ticity | | | Unified | AASHTO |inches|inches| 4 | 10 | 40 | 200 | |index _____________________________________________________________________________________________________________________________ | In | | | | Pct | Pct | | | | | Pct | __ ___ ___ ___ | | | | | | | | | | | | CoyC2: | | | | | | | | | | | | Coyle-----------| 0-5 |Loam |CL, CL-ML |A-4, A-6 | 0 | 0 | 100 | 100 |96-100|65-85 |25-35 | 4-13 | 5-10 |Loam, fine |CL, CL-ML, |A-4, A-6 | 0 | 0 | 100 |98-100|94-100|36-85 |22-35 | 4-13 | | sandy loam | SC, SC-SM | | | | | | | | | | 10-14 |Clay loam, |CL, SC |A-2, A-4, A-6| 0 | 0 |85-100|85-100|80-100|30-90 |25-40 | 7-18 | | sandy clay | | | | | | | | | | | | loam | | | | | | | | | | | 14-18 |Clay loam, |CL, SC |A-2, A-4, A-6| 0 | 0 |85-100|85-100|80-100|30-90 |25-40 | 7-18 | | sandy clay | | | | | | | | | | | | loam | | | | | | | | | | | 18-27 |Fine sandy |CL, CL-ML, |A-2, A-4, A-6| 0 | 0-45 |55-100|55-100|50-100|20-90 |22-40 | 4-18 | | loam, sandy | SC, SC-SM | | | | | | | | | | | clay loam, | | | | | | | | | | | | clay loam | | | | | | | | | | | 27-37 |Bedrock | | | --- | --- | --- | --- | --- | --- | --- | --- | | | | | | | | | | | | CoZC3: | | | | | | | | | | | | Coyle-----------| 0-6 |Loam |CL, CL-ML |A-4, A-6 | 0 | 0 | 100 | 100 |96-100|65-85 |25-35 | 4-13 | 6-18 |Clay loam, |CL, SC |A-2, A-4, A-6| 0 | 0 |85-100|85-100|80-100|30-90 |25-40 | 7-18 | | sandy clay | | | | | | | | | | | | loam | | | | | | | | | | | 18-31 |Clay loam, |CL, CL-ML, |A-2, A-4, A-6| 0 | 0-45 |55-100|55-100|50-100|20-90 |22-40 | 4-18 | | sandy clay | SC, SC-SM | | | | | | | | | | | loam, fine | | | | | | | | | | | | sandy loam | | | | | | | | | | | 31-40 |Bedrock | | | --- | --- | --- | --- | --- | --- | --- | --- | | | | | | | | | | | | Zaneis----------| 0-5 |Loam |CL |A-4, A-6 | 0 | 0 | 100 |98-100|91-100|65-85 |30-35 | 9-13 | 5-15 |Clay loam, |CL, SC |A-4, A-6 | 0 | 0 | 100 | 100 |90-100|36-90 |25-40 | 7-18 | | loam, sandy | | | | | | | | | | | | clay loam | | | | | | | | | | | 15-35 |Clay loam, |CL, SC |A-4, A-6 | 0 | 0 | 100 | 100 |90-100|36-90 |25-40 | 7-18 | | sandy clay | | | | | | | | | | | | loam | | | | | | | | | | | 35-47 |Clay loam, |CL, CL-ML, |A-2, A-4, A-6| 0 | 0-10 |90-100|90-100|85-100|30-90 |20-40 | 4-18 | | sandy clay | SC, SC-SM | | | | | | | | | | | loam, fine | | | | | | | | | | | | sandy loam | | | | | | | | | | | 47-60 |Bedrock | | | --- | --- | --- | --- | --- | --- | --- | --- | | | | | | | | | | | | DAM. | | | | | | | | | | | | Dam | | | | | | | | | | | | | | | | | | | | | | | |
376 Soil Survey Engineering Index Properties—Continued _____________________________________________________________________________________________________________________________ | | | Classification | Fragments | Percentage passing | | Map symbol | Depth | USDA texture | | | sieve number-- |Liquid| Plas- _____________________________________________________________________ and soil name | | | | | >10 | 3-10 | | | | |limit |ticity | | | Unified | AASHTO |inches|inches| 4 | 10 | 40 | 200 | |index _____________________________________________________________________________________________________________________________ | In | | | | Pct | Pct | | | | | Pct | __ ___ ___ ___ | | | | | | | | | | | | DerB: | | | | | | | | | | | | Derby-----------| 0-11 |Loamy fine sand|SM |A-2 | 0 | 0 | 100 |98-100|90-100|15-35 | 0-0 | NP | 11-30 |Loamy fine sand|SM |A-2 | 0 | 0 | 100 |98-100|90-100|15-35 | 0-0 | NP | 30-52 |Loamy fine |SM, SP-SM |A-2, A-3 | 0 | 0 | 100 |98-100|82-100| 3-35 | 0-0 | NP | | sand, fine | | | | | | | | | | | | sand | | | | | | | | | | | 52-84 |Stratified fine|SM, SP-SM |A-2, A-3 | 0 | 0 | 100 |98-100|82-100| 3-35 | 0-0 | NP | | sand to loamy | | | | | | | | | | | | fine sand to | | | | | | | | | | | | fine sandy | | | | | | | | | | | | loam, fine | | | | | | | | | | | | sand | | | | | | | | | | | | | | | | | | | | | | DerD: | | | | | | | | | | | | Derby-----------| 0-9 |Loamy fine sand|SM |A-2 | 0 | 0 | 100 |98-100|90-100|15-35 | 0-0 | NP | 9-23 |Loamy fine |SM, SP-SM |A-2, A-3 | 0 | 0 | 100 |98-100|82-100| 3-35 | 0-0 | NP | | sand, fine | | | | | | | | | | | | sand | | | | | | | | | | | 23-49 |Loamy fine |SP-SM, SM |A-2, A-3 | 0 | 0 | 100 |98-100|82-100| 3-35 | 0-0 | NP | | sand, fine | | | | | | | | | | | | sand | | | | | | | | | | | 49-80 |Stratified fine|SM, SP-SM |A-2, A-3 | 0 | 0 | 100 |98-100|82-100| 3-35 | 0-0 | NP | | sand to loamy | | | | | | | | | | | | fine sand, | | | | | | | | | | | | fine sand | | | | | | | | | | | | | | | | | | | | | | DerE: | | | | | | | | | | | | Derby-----------| 0-11 |Loamy fine sand|SM |A-2 | 0 | 0 | 100 |98-100|90-100|15-35 | 0-0 | NP | 11-20 |Loamy fine |SM, SP-SM |A-2, A-3 | 0 | 0 | 100 |98-100|82-100| 3-35 | 0-0 | NP | | sand, fine | | | | | | | | | | | | sand | | | | | | | | | | | 20-38 |Loamy fine |SM, SP-SM |A-2, A-3 | 0 | 0 | 100 |98-100|82-100| 3-35 | 0-0 | NP | | sand, fine | | | | | | | | | | | | sand | | | | | | | | | | | 38-54 |Loamy fine |SM, SP-SM |A-2, A-3 | 0 | 0 | 100 |98-100|82-100| 3-35 | 0-0 | NP | | sand, fine | | | | | | | | | | | | sand | | | | | | | | | | | 54-80 |Loamy fine |SM, SP-SM |A-2, A-3 | 0 | 0 | 100 |98-100|82-100| 3-35 | 0-0 | NP | | sand, fine | | | | | | | | | | | | sand | | | | | | | | | | | | | | | | | | | | | |
Logan County, Oklahoma 377 Engineering Index Properties—Continued _____________________________________________________________________________________________________________________________ | | | Classification | Fragments | Percentage passing | | Map symbol | Depth | USDA texture | | | sieve number-- |Liquid| Plas- _____________________________________________________________________ and soil name | | | | | >10 | 3-10 | | | | |limit |ticity | | | Unified | AASHTO |inches|inches| 4 | 10 | 40 | 200 | |index _____________________________________________________________________________________________________________________________ | In | | | | Pct | Pct | | | | | Pct | __ ___ ___ ___ | | | | | | | | | | | | DiRG: | | | | | | | | | | | | Darsil----------| 0-4 |Loamy fine sand|SM |A-2 | 0 | 0 |98-100|98-100|85-100|15-35 | 0-14 | NP | 4-16 |Loamy fine |SM, SP-SM |A-2, A-3 | 0 | 0 |75-100|70-100|50-100| 3-35 | 0-14 | NP | | sand, fine | | | | | | | | | | | | sand | | | | | | | | | | | 16-24 |Bedrock | | | --- | --- | --- | --- | --- | --- | --- | --- | | | | | | | | | | | | Rock outcrop. | | | | | | | | | | | | | | | | | | | | | | | | DouB: | | | | | | | | | | | | Dougherty-------| 0-13 |Loamy fine sand|SM |A-2 | 0 | 0 | 100 | 100 |90-100|15-35 | 0-14 | NP | 13-26 |Fine sand, |SM, SP-SM |A-2, A-3 | 0 | 0 | 100 | 100 |82-100| 3-35 | 0-14 | NP | | loamy fine | | | | | | | | | | | | sand | | | | | | | | | | | 26-43 |Fine sandy |CL, ML, SC, |A-4, A-6 | 0 | 0 | 100 | 100 |90-100|36-65 |20-37 | 3-16 | | loam, sandy | SM | | | | | | | | | | | clay loam | | | | | | | | | | | 43-52 |Fine sandy |CL, ML, SC, |A-4, A-6 | 0 | 0 | 100 | 100 |90-100|36-65 |20-37 | 3-16 | | loam, sandy | SM | | | | | | | | | | | clay loam | | | | | | | | | | | 52-64 |Fine sandy |CL, ML, SC, |A-2, A-4, A-6| 0 | 0 | 100 | 100 |90-100|15-65 |15-37 |NP-16 | | loam, sandy | SM | | | | | | | | | | | clay loam, | | | | | | | | | | | | loamy fine | | | | | | | | | | | | sand | | | | | | | | | | | 64-80 |Loamy fine |CL-ML, ML, |A-2, A-4 | 0 | 0 | 100 | 100 |90-100|15-60 |15-26 |NP-7 | | sand, fine | SC-SM, SM | | | | | | | | | | | sandy loam | | | | | | | | | | | | | | | | | | | | | | DouD: | | | | | | | | | | | | Dougherty-------| 0-9 |Loamy fine sand|SM |A-2 | 0 | 0 | 100 | 100 |90-100|15-35 | 0-14 | NP | 9-22 |Fine sand, |SM, SP-SM |A-2, A-3 | 0 | 0 | 100 | 100 |82-100| 3-35 | 0-14 | NP | | loamy fine | | | | | | | | | | | | sand | | | | | | | | | | | 22-32 |Fine sandy |CL, ML, SC, |A-4, A-6 | 0 | 0 | 100 | 100 |90-100|36-65 |20-37 | 3-16 | | loam, sandy | SM | | | | | | | | | | | clay loam | | | | | | | | | | | 32-44 |Fine sandy |CL, ML, SC, |A-2, A-4, A-6| 0 | 0 | 100 | 100 |90-100|15-65 |15-37 |NP-16 | | loam, sandy | SM | | | | | | | | | | | clay loam, | | | | | | | | | | | | loamy fine | | | | | | | | | | | | sand | | | | | | | | | | | 44-80 |Loamy fine |CL-ML, ML, |A-2, A-4 | 0 | 0 | 100 | 100 |90-100|15-60 |15-26 |NP-7 | | sand, fine | SC-SM, SM | | | | | | | | | | | sandy loam | | | | | | | | | | | | | | | | | | | | | |
378 Soil Survey Engineering Index Properties—Continued _____________________________________________________________________________________________________________________________ | | | Classification | Fragments | Percentage passing | | Map symbol | Depth | USDA texture | | | sieve number-- |Liquid| Plas- _____________________________________________________________________ and soil name | | | | | >10 | 3-10 | | | | |limit |ticity | | | Unified | AASHTO |inches|inches| 4 | 10 | 40 | 200 | |index _____________________________________________________________________________________________________________________________ | In | | | | Pct | Pct | | | | | Pct | __ ___ ___ ___ | | | | | | | | | | | | DUM. | | | | | | | | | | | | Dumps | | | | | | | | | | | | | | | | | | | | | | | | EasA: | | | | | | | | | | | | Easpur----------| 0-12 |Loam |CL, CL-ML, ML|A-4, A-6 | 0 | 0 | 100 | 100 |96-100|65-97 |22-37 | 3-14 | 12-18 |Loam |CL, CL-ML, ML|A-4, A-6 | 0 | 0 | 100 | 100 |96-100|65-97 |22-37 | 3-14 | 18-36 |Fine sandy |CL, ML, SC, |A-4, A-6 | 0 | 0 | 100 |98-100|94-100|36-90 |20-40 | 3-18 | | loam, clay | SM | | | | | | | | | | | loam, loam | | | | | | | | | | | 36-62 |Stratified fine|CL, ML, SC, |A-4, A-6 | 0 | 0 | 100 |98-100|94-100|36-90 |20-40 | 3-18 | | sandy loam to | SM | | | | | | | | | | | silty clay | | | | | | | | | | | | loam | | | | | | | | | | | 62-80 |Silty clay |CL |A-4, A-6, A-7| 0 | 0 | 100 | 100 |96-100|65-98 |30-42 | 8-19 | | loam, loam, | | | | | | | | | | | | silt loam | | | | | | | | | | | | | | | | | | | | | | GadA: | | | | | | | | | | | | Gaddy-----------| 0-12 |Loamy fine sand|SM, SP-SM |A-2, A-3 | 0 | 0 | 100 |98-100|80-100| 5-35 | 0-14 | NP | 12-29 |Stratified fine|CL, ML, SM, |A-2, A-3, | 0 | 0 | 100 |98-100|80-100| 5-90 | 0-40 |NP-18 | | sand to clay | SP-SM | A-4, A-6 | | | | | | | | | | loam | | | | | | | | | | | 29-80 |Stratified fine|CL, ML, SM, |A-2, A-3, | 0 | 0 | 100 |98-100|80-100| 5-90 | 0-40 |NP-18 | | sand to clay | SP-SM | A-4, A-6 | | | | | | | | | | loam | | | | | | | | | | | | | | | | | | | | | | GaGA: | | | | | | | | | | | | Gaddy-----------| 0-6 |Fine sandy loam|CL-ML, ML, |A-4 | 0 | 0 | 100 |95-100|70-100|36-60 |15-26 |NP-7 | | | SC-SM, SM | | | | | | | | | | 6-80 |Stratified fine|CL, ML, SM, |A-2, A-3, | 0 | 0 | 100 |98-100|80-100| 5-90 | 0-40 |NP-18 | | sand to clay | SP-SM | A-4, A-6 | | | | | | | | | | loam | | | | | | | | | | | | | | | | | | | | | | Gracemore-------| 0-12 |Very fine sandy|ML, CL-ML |A-4 | 0 | 0 | 100 | 100 |94-100|51-75 |15-28 |NP-7 | | loam | | | | | | | | | | | 12-80 |Fine sand, |SM, SP-SM |A-2, A-3 | 0 | 0 |90-100|85-100|82-100| 3-35 | 0-0 | NP | | stratified | | | | | | | | | | | | fine sand to | | | | | | | | | | | | clay loam | | | | | | | | | | | | | | | | | | | | | |
Logan County, Oklahoma 379 Engineering Index Properties—Continued _____________________________________________________________________________________________________________________________ | | | Classification | Fragments | Percentage passing | | Map symbol | Depth | USDA texture | | | sieve number-- |Liquid| Plas- _____________________________________________________________________ and soil name | | | | | >10 | 3-10 | | | | |limit |ticity | | | Unified | AASHTO |inches|inches| 4 | 10 | 40 | 200 | |index _____________________________________________________________________________________________________________________________ | In | | | | Pct | Pct | | | | | Pct | __ ___ ___ ___ | | | | | | | | | | | | GMGE4: | | | | | | | | | | | | Grainola--------| 0-4 |Clay loam |CL |A-6, A-7 | 0-6 | 0-10 |80-100|75-100|72-100|60-98 |33-43 |12-20 | 4-15 |Silty clay, |CH, CL, SC |A-6, A-7 | 0-25 | 0-25 |80-100|75-100|72-100|49-98 |37-60 |15-34 | | clay loam, | | | | | | | | | | | | clay | | | | | | | | | | | 15-31 |Clay loam, |CH, CL |A-6, A-7 | 0 | 0 | 100 | 100 |96-100|80-99 |37-60 |15-34 | | clay, silty | | | | | | | | | | | | clay | | | | | | | | | | | 31-38 |Very gravelly |CH, CL |A-6, A-7 | 0 | 0 |55-100|55-100|55-95 |55-94 |37-60 |15-34 | | clay loam, | | | | | | | | | | | | very gravelly | | | | | | | | | | | | clay, silty | | | | | | | | | | | | clay | | | | | | | | | | | 38-40 |Bedrock | | | --- | --- | --- | --- | --- | --- | --- | --- | | | | | | | | | | | | Masham----------| 0-5 |Clay loam |CL |A-6, A-7 | 0 | 0 |90-100|85-100|80-100|70-98 |37-50 |15-26 | 5-16 |Silty clay |CH, CL |A-6, A-7 | 0 | 0 |90-100|90-100|85-100|80-99 |37-60 |15-34 | | loam, silty | | | | | | | | | | | | clay, clay | | | | | | | | | | | 16-35 |Bedrock | | | --- | --- | --- | --- | --- | --- | --- | --- | | | | | | | | | | | | Gullied land. | | | | | | | | | | | | | | | | | | | | | | | | GMLG: | | | | | | | | | | | | Grainola--------| 0-5 |Gravelly loam |CL, GC, SC |A-2, A-4, A-6| 0-25 | 0-25 |55-80 |50-75 |48-75 |32-73 |30-37 | 8-14 | 5-24 |Gravelly silty |CH, CL, GC, |A-6, A-7 | 0-25 | 0-25 |55-80 |50-75 |48-75 |40-75 |37-60 |15-34 | | clay, gravelly| SC | | | | | | | | | | | clay loam, | | | | | | | | | | | | gravelly clay | | | | | | | | | | | 24-30 |Very gravelly |CH, CL |A-6, A-7 | 0 | 0 |30-100|30-100|28-100|27-99 |37-60 |15-34 | | silty clay, | | | | | | | | | | | | very gravelly | | | | | | | | | | | | clay, very | | | | | | | | | | | | gravelly clay | | | | | | | | | | | | loam, gravelly| | | | | | | | | | | | silty clay, | | | | | | | | | | | | gravelly clay,| | | | | | | | | | | | gravelly clay | | | | | | | | | | | | loam, silty | | | | | | | | | | | | clay, clay, | | | | | | | | | | | | clay loam | | | | | | | | | | | 30-40 |Bedrock | | | --- | --- | --- | --- | --- | --- | --- | --- | | | | | | | | | | | |
380 Soil Survey Engineering Index Properties—Continued _____________________________________________________________________________________________________________________________ | | | Classification | Fragments | Percentage passing | | Map symbol | Depth | USDA texture | | | sieve number-- |Liquid| Plas- _____________________________________________________________________ and soil name | | | | | >10 | 3-10 | | | | |limit |ticity | | | Unified | AASHTO |inches|inches| 4 | 10 | 40 | 200 | |index _____________________________________________________________________________________________________________________________ | In | | | | Pct | Pct | | | | | Pct | __ ___ ___ ___ | | | | | | | | | | | | GMLG: | | | | | | | | | | | | Masham----------| 0-4 |Silty clay loam|CL |A-6, A-7 | 0 | 0 |90-100|85-100|80-100|70-98 |37-50 |15-26 | 4-13 |Silty clay |CH, CL |A-6, A-7 | 0 | 0 |90-100|90-100|85-100|80-99 |37-60 |15-34 | | loam, silty | | | | | | | | | | | | clay, clay | | | | | | | | | | | 13-25 |Bedrock | | | --- | --- | --- | --- | --- | --- | --- | --- | | | | | | | | | | | | Lucien----------| 0-6 |Loam |CL, CL-ML, |A-4, A-6 | 0 | 0-15 |85-100|85-100|80-100|42-97 |22-31 | 2-13 | | | ML, SM | | | | | | | | | | 6-17 |Loam, very fine|CL, ML, SC, |A-2, A-4, A-6| 0 | 0-20 |85-100|85-100|80-100|30-97 |14-37 |NP-14 | | sandy loam, | SM | | | | | | | | | | | fine sandy | | | | | | | | | | | | loam | | | | | | | | | | | 17-30 |Bedrock | | | --- | --- | --- | --- | --- | --- | --- | --- | | | | | | | | | | | | GohC: | | | | | | | | | | | | Goodnight-------| 0-9 |Loamy fine sand|SM |A-2 | 0 | 0 | 100 |98-100|90-100|15-35 | 0-14 | NP | 9-18 |Loamy fine |SM, SP-SM |A-2, A-3 | 0 | 0 | 100 |98-100|82-100| 3-35 | 0-14 | NP | | sand, fine | | | | | | | | | | | | sand | | | | | | | | | | | 18-25 |Loamy fine |SM, SP-SM |A-2, A-3 | 0 | 0 | 100 |98-100|82-100| 3-35 | 0-14 | NP | | sand, fine | | | | | | | | | | | | sand | | | | | | | | | | | 25-64 |Loamy fine |SM, SP-SM |A-2, A-3 | 0 | 0 | 100 |98-100|82-100| 3-35 | 0-14 | NP | | sand, fine | | | | | | | | | | | | sand | | | | | | | | | | | 64-80 |Loamy fine |SM, SP-SM |A-2, A-3 | 0 | 0 | 100 |98-100|82-100| 3-35 | 0-14 | NP | | sand, fine | | | | | | | | | | | | sand | | | | | | | | | | | | | | | | | | | | | | GohE: | | | | | | | | | | | | Goodnight-------| 0-10 |Loamy fine sand|SM |A-2 | 0 | 0 | 100 |98-100|90-100|15-35 | 0-14 | NP | 10-22 |Loamy fine |SM, SP-SM |A-2, A-3 | 0 | 0 | 100 |98-100|82-100| 3-35 | 0-14 | NP | | sand, fine | | | | | | | | | | | | sand | | | | | | | | | | | 22-32 |Loamy fine |SM, SP-SM |A-2, A-3 | 0 | 0 | 100 |98-100|82-100| 3-35 | 0-14 | NP | | sand, fine | | | | | | | | | | | | sand | | | | | | | | | | | 32-52 |Loamy fine |SM, SP-SM |A-3, A-2 | 0 | 0 | 100 |98-100|82-100| 3-35 | 0-14 | NP | | sand, fine | | | | | | | | | | | | sand | | | | | | | | | | | 52-80 |Loamy fine |SM, SP-SM |A-2, A-3 | 0 | 0 | 100 |98-100|82-100| 3-35 | 0-14 | NP | | sand, fine | | | | | | | | | | | | sand | | | | | | | | | | | | | | | | | | | | | |
Logan County, Oklahoma 381 Engineering Index Properties—Continued _____________________________________________________________________________________________________________________________ | | | Classification | Fragments | Percentage passing | | Map symbol | Depth | USDA texture | | | sieve number-- |Liquid| Plas- _____________________________________________________________________ and soil name | | | | | >10 | 3-10 | | | | |limit |ticity | | | Unified | AASHTO |inches|inches| 4 | 10 | 40 | 200 | |index _____________________________________________________________________________________________________________________________ | In | | | | Pct | Pct | | | | | Pct | __ ___ ___ ___ | | | | | | | | | | | | GooE: | | | | | | | | | | | | Goodnight-------| 0-6 |Fine sand |SM, SP-SM |A-2, A-3 | 0 | 0 | 100 |98-100|82-98 | 3-25 | 0-0 | NP | 6-20 |Loamy fine |SM, SP-SM |A-2, A-3 | 0 | 0 | 100 |98-100|82-100| 3-35 | 0-14 | NP | | sand, fine | | | | | | | | | | | | sand | | | | | | | | | | | 20-80 |Loamy fine |SM, SP-SM |A-2, A-3 | 0 | 0 | 100 |98-100|82-100| 3-35 | 0-14 | NP | | sand, fine | | | | | | | | | | | | sand | | | | | | | | | | | | | | | | | | | | | | GooG: | | | | | | | | | | | | Goodnight-------| 0-8 |Fine sand |SM, SP-SM |A-2, A-3 | 0 | 0 | 100 |98-100|82-98 | 3-25 | 0-0 | NP | 8-23 |Loamy fine |SM, SP-SM |A-2, A-3 | 0 | 0 | 100 |98-100|82-100| 3-35 | 0-14 | NP | | sand, fine | | | | | | | | | | | | sand | | | | | | | | | | | 23-45 |Loamy fine |SM, SP-SM |A-2, A-3 | 0 | 0 | 100 |98-100|82-100| 3-35 | 0-14 | NP | | sand, fine | | | | | | | | | | | | sand | | | | | | | | | | | 45-80 |Loamy fine |SM, SP-SM |A-2, A-3 | 0 | 0 | 100 |98-100|82-100| 3-35 | 0-14 | NP | | sand, fine | | | | | | | | | | | | sand | | | | | | | | | | | | | | | | | | | | | | GraC: | | | | | | | | | | | | Grainola--------| 0-5 |Silty clay loam|CL |A-6, A-7 | 0-6 | 0-10 |80-100|75-100|72-100|60-98 |33-43 |12-20 | 5-18 |Silty clay, |CH, CL, SC |A-6, A-7 | 0-6 | 0-10 |80-100|75-100|72-100|49-98 |37-60 |15-34 | | clay loam, | | | | | | | | | | | | clay | | | | | | | | | | | 18-27 |Clay loam, |CH, CL |A-6, A-7 | 0 | 0 | 100 | 100 |96-100|80-99 |37-60 |15-34 | | clay, silty | | | | | | | | | | | | clay | | | | | | | | | | | 27-32 |Clay loam, |CH, CL |A-6, A-7 | 0 | 0 | 100 | 100 |96-100|80-99 |37-60 |15-34 | | clay, silty | | | | | | | | | | | | clay | | | | | | | | | | | 32-42 |Bedrock | | | --- | --- | --- | --- | --- | --- | --- | --- | | | | | | | | | | | | GraD2: | | | | | | | | | | | | Grainola--------| 0-4 |Silty clay loam|CL |A-6, A-7 | 0-6 | 0-10 |80-100|75-100|72-100|60-98 |33-43 |12-20 | 4-26 |Silty clay, |CH, CL, SC |A-6, A-7 | 0-6 | 0-10 |80-100|75-100|72-100|49-98 |37-60 |15-34 | | clay loam, | | | | | | | | | | | | clay | | | | | | | | | | | 26-38 |Silty clay, |CH, CL |A-6, A-7 | 0 | 0 | 100 | 100 |96-100|80-99 |37-60 |15-34 | | clay, clay | | | | | | | | | | | | loam | | | | | | | | | | | 38-48 |Bedrock | | | --- | --- | --- | --- | --- | --- | --- | --- | | | | | | | | | | | |
382 Soil Survey Engineering Index Properties—Continued _____________________________________________________________________________________________________________________________ | | | Classification | Fragments | Percentage passing | | Map symbol | Depth | USDA texture | | | sieve number-- |Liquid| Plas- _____________________________________________________________________ and soil name | | | | | >10 | 3-10 | | | | |limit |ticity | | | Unified | AASHTO |inches|inches| 4 | 10 | 40 | 200 | |index _____________________________________________________________________________________________________________________________ | In | | | | Pct | Pct | | | | | Pct | __ ___ ___ ___ | | | | | | | | | | | | GrHC: | | | | | | | | | | | | Grant-----------| 0-7 |Silt loam |CL |A-4, A-6 | 0 | 0 | 100 | 100 |96-100|65-97 |30-37 | 8-14 | 7-11 |Silt loam, |CL, CL-ML, ML|A-4 | 0 | 0 | 100 | 100 |90-100|51-90 |20-32 | 1-10 | | loam, very | | | | | | | | | | | | fine sandy | | | | | | | | | | | | loam | | | | | | | | | | | 11-17 |Silt loam, |CL |A-4, A-6, A-7| 0 | 0 | 100 | 100 |90-100|70-90 |30-42 | 8-19 | | loam, silty | | | | | | | | | | | | clay loam | | | | | | | | | | | 17-35 |Silt loam, |CL |A-4, A-6, A-7| 0 | 0 | 100 | 100 |90-100|70-90 |30-42 | 8-19 | | loam, silty | | | | | | | | | | | | clay loam | | | | | | | | | | | 35-54 |Silt loam, |CL |A-4, A-6, A-7| 0 | 0 | 100 | 100 |90-100|70-90 |30-42 | 8-19 | | loam, silty | | | | | | | | | | | | clay loam | | | | | | | | | | | 54-58 |Bedrock | | | --- | --- | --- | --- | --- | --- | --- | --- | | | | | | | | | | | | Huska-----------| 0-6 |Silt loam |CL, CL-ML |A-4, A-6 | 0 | 0 | 100 | 100 |94-100|51-97 |24-37 | 5-14 | 6-17 |Silty clay, |CH, CL |A-6, A-7 | 0 | 0 | 100 | 100 |96-100|80-99 |37-60 |15-34 | | silty clay | | | | | | | | | | | | loam, clay | | | | | | | | | | | | loam | | | | | | | | | | | 17-32 |Silty clay, |CH, CL |A-6, A-7 | 0 | 0 | 100 | 100 |96-100|80-99 |37-60 |15-34 | | silty clay | | | | | | | | | | | | loam, clay | | | | | | | | | | | | loam | | | | | | | | | | | 32-40 |Silty clay, |CH, CL |A-6, A-7 | 0 | 0 | 100 | 100 |96-100|80-99 |37-60 |15-34 | | silty clay | | | | | | | | | | | | loam, clay | | | | | | | | | | | | loam | | | | | | | | | | | 40-50 |Silty clay, |CH, CL |A-6, A-7 | 0 | 0 | 100 | 100 |96-100|80-99 |37-60 |15-34 | | silty clay | | | | | | | | | | | | loam, clay | | | | | | | | | | | | loam | | | | | | | | | | | 50-54 |Bedrock | | | --- | --- | --- | --- | --- | --- | --- | --- | | | | | | | | | | | |
Logan County, Oklahoma 383 Engineering Index Properties—Continued _____________________________________________________________________________________________________________________________ | | | Classification | Fragments | Percentage passing | | Map symbol | Depth | USDA texture | | | sieve number-- |Liquid| Plas- _____________________________________________________________________ and soil name | | | | | >10 | 3-10 | | | | |limit |ticity | | | Unified | AASHTO |inches|inches| 4 | 10 | 40 | 200 | |index _____________________________________________________________________________________________________________________________ | In | | | | Pct | Pct | | | | | Pct | __ ___ ___ ___ | | | | | | | | | | | | GrIE: | | | | | | | | | | | | Grainola--------| 0-7 |Silty clay loam|CL |A-6, A-7 | 0-6 | 0-10 |80-100|75-100|72-100|60-98 |33-43 |12-20 | 7-12 |Silty clay, |CH, CL, SC |A-6, A-7 | 0-6 | 0-10 |80-100|75-100|72-100|49-98 |37-60 |15-34 | | clay loam, | | | | | | | | | | | | clay | | | | | | | | | | | 12-27 |Clay loam, |CH, CL |A-6, A-7 | 0 | 0 | 100 | 100 |96-100|80-99 |37-60 |15-34 | | clay, silty | | | | | | | | | | | | clay | | | | | | | | | | | 27-38 |Clay loam, |CH, CL |A-6, A-7 | 0 | 0 | 100 | 100 |96-100|80-99 |37-60 |15-34 | | clay, silty | | | | | | | | | | | | clay | | | | | | | | | | | 38-46 |Bedrock | | | --- | --- | --- | --- | --- | --- | --- | --- | | | | | | | | | | | | Ironmound-------| 0-7 |Fine sandy loam|CL-ML, ML, |A-2, A-4 | 0 | 0 |85-100|85-100|80-100|30-60 |14-26 |NP-7 | | | SC-SM, SM | | | | | | | | | | 7-18 |Loam, fine |CL, CL-ML, ML|A-4, A-6 | 0 | 0 |85-100|80-100|76-100|52-85 |14-35 | 2-18 | | sandy loam, | | | | | | | | | | | | clay loam | | | | | | | | | | | 18-22 |Bedrock | | | --- | --- | --- | --- | --- | --- | --- | --- | | | | | | | | | | | | GrLE: | | | | | | | | | | | | Grainola--------| 0-8 |Clay loam |CL |A-6, A-7 | 0-6 | 0-10 |80-100|75-100|72-100|60-98 |33-43 |12-20 | 8-20 |Silty clay, |CH, CL, SC |A-6, A-7 | 0-6 | 0-10 |80-100|75-100|72-100|49-98 |37-60 |15-34 | | clay loam, | | | | | | | | | | | | clay | | | | | | | | | | | 20-27 |Clay loam, |CH, CL |A-6, A-7 | 0 | 0 | 100 | 100 |96-100|80-99 |37-60 |15-34 | | clay, silty | | | | | | | | | | | | clay | | | | | | | | | | | 27-30 |Bedrock | | | --- | --- | --- | --- | --- | --- | --- | --- | | | | | | | | | | | | Lucien----------| 0-7 |Loam |CL, CL-ML, |A-4, A-6 | 0 | 0-15 |85-100|85-100|80-100|42-97 |22-31 | 2-13 | | | ML, SM | | | | | | | | | | 7-12 |Loam, very fine|CL, ML, SC, |A-2, A-4, A-6| 0 | 0-20 |85-100|85-100|80-100|30-97 |14-37 |NP-14 | | sandy loam, | SM | | | | | | | | | | | fine sandy | | | | | | | | | | | | loam | | | | | | | | | | | 12-15 |Bedrock | | | --- | --- | --- | --- | --- | --- | --- | --- | | | | | | | | | | | |
384 Soil Survey Engineering Index Properties—Continued _____________________________________________________________________________________________________________________________ | | | Classification | Fragments | Percentage passing | | Map symbol | Depth | USDA texture | | | sieve number-- |Liquid| Plas- _____________________________________________________________________ and soil name | | | | | >10 | 3-10 | | | | |limit |ticity | | | Unified | AASHTO |inches|inches| 4 | 10 | 40 | 200 | |index _____________________________________________________________________________________________________________________________ | In | | | | Pct | Pct | | | | | Pct | __ ___ ___ ___ | | | | | | | | | | | | HaGD4: | | | | | | | | | | | | Harrah----------| 0-4 |Fine sandy loam|CL-ML, ML, |A-4 | 0 | 0 |95-100|95-100|94-100|36-60 |15-26 |NP-7 | | | SC-SM, SM | | | | | | | | | | 4-22 |Sandy clay |CL, CL-ML, |A-4, A-6 | 0 | 0 |95-100|95-100|90-100|36-65 |20-37 | 5-16 | | loam, fine | SC, SC-SM | | | | | | | | | | | sandy loam | | | | | | | | | | | 22-42 |Sandy clay |CL, CL-ML, |A-4, A-6 | 0 | 0 |95-100|95-100|90-100|36-65 |20-37 | 5-16 | | loam, fine | SC, SC-SM | | | | | | | | | | | sandy loam | | | | | | | | | | | 42-54 |Sandy clay |CL, CL-ML, |A-4, A-6 | 0 | 0 |95-100|95-100|90-100|36-65 |20-37 | 5-16 | | loam, fine | SC, SC-SM | | | | | | | | | | | sandy loam | | | | | | | | | | | 54-72 |Sandy clay |CL, CL-ML, |A-2, A-4, A-6| 0 | 0 |75-100|75-100|60-100|25-65 |20-37 | 5-16 | | loam, fine | SC, SC-SM | | | | | | | | | | | sandy loam | | | | | | | | | | | 72-80 |Sandy clay |CL, CL-ML, |A-2, A-4, A-6| 0 | 0 |75-100|75-100|60-100|25-65 |20-37 | 5-16 | | loam, fine | SC, SC-SM | | | | | | | | | | | sandy loam | | | | | | | | | | | | | | | | | | | | | | Gullied land. | | | | | | | | | | | | | | | | | | | | | | | | HarC: | | | | | | | | | | | | Harrah----------| 0-7 |Fine sandy loam|CL-ML, ML, |A-4 | 0 | 0 |95-100|95-100|94-100|36-60 |15-26 |NP-7 | | | SC-SM, SM | | | | | | | | | | 7-16 |Fine sandy |CL-ML, ML, |A-2, A-4 | 0 | 0 |95-100|95-100|94-100|15-60 | 0-26 |NP-7 | | loam, loamy | SC-SM, SM | | | | | | | | | | | fine sand | | | | | | | | | | | 16-39 |Sandy clay |CL, CL-ML, |A-4, A-6 | 0 | 0 |95-100|95-100|90-100|36-65 |20-37 | 5-16 | | loam, fine | SC, SC-SM | | | | | | | | | | | sandy loam | | | | | | | | | | | 39-64 |Sandy clay |SC-SM, CL, |A-4, A-6 | 0 | 0 |95-100|95-100|90-100|36-65 |20-37 | 5-16 | | loam, fine | CL-ML, SC | | | | | | | | | | | sandy loam | | | | | | | | | | | 64-72 |Sandy clay |CL, CL-ML, |A-2, A-4, A-6| 0 | 0 |75-100|75-100|60-100|25-65 |20-37 | 5-16 | | loam, fine | SC, SC-SM | | | | | | | | | | | sandy loam | | | | | | | | | | | 72-80 |Sandy clay |CL, CL-ML, |A-2, A-4, A-6| 0 | 0 |75-100|75-100|60-100|25-65 |20-37 | 5-16 | | loam, fine | SC, SC-SM | | | | | | | | | | | sandy loam | | | | | | | | | | | | | | | | | | | | | |
Logan County, Oklahoma 385 Engineering Index Properties—Continued _____________________________________________________________________________________________________________________________ | | | Classification | Fragments | Percentage passing | | Map symbol | Depth | USDA texture | | | sieve number-- |Liquid| Plas- _____________________________________________________________________ and soil name | | | | | >10 | 3-10 | | | | |limit |ticity | | | Unified | AASHTO |inches|inches| 4 | 10 | 40 | 200 | |index _____________________________________________________________________________________________________________________________ | In | | | | Pct | Pct | | | | | Pct | __ ___ ___ ___ | | | | | | | | | | | | HarC2: | | | | | | | | | | | | Harrah----------| 0-8 |Fine sandy loam|CL-ML, ML, |A-4 | 0 | 0 |95-100|95-100|94-100|36-60 |15-26 |NP-7 | | | SC-SM, SM | | | | | | | | | | 8-30 |Sandy clay |CL, CL-ML, |A-4, A-6 | 0 | 0 |95-100|95-100|90-100|36-65 |20-37 | 5-16 | | loam, fine | SC, SC-SM | | | | | | | | | | | sandy loam | | | | | | | | | | | 30-63 |Sandy clay |CL, CL-ML, |A-4, A-6 | 0 | 0 |95-100|95-100|90-100|36-65 |20-37 | 5-16 | | loam, fine | SC, SC-SM | | | | | | | | | | | sandy loam | | | | | | | | | | | 63-80 |Fine sandy |CL, CL-ML, |A-2, A-4, A-6| 0 | 0 |75-100|75-100|60-100|25-65 |20-37 | 5-16 | | loam, sandy | SC, SC-SM | | | | | | | | | | | clay loam | | | | | | | | | | | | | | | | | | | | | | HarG: | | | | | | | | | | | | Harrah----------| 0-6 |Fine sandy loam|CL-ML, ML, |A-4 | 0 | 0 |95-100|95-100|94-100|36-60 |15-26 |NP-7 | | | SC-SM, SM | | | | | | | | | | 6-12 |Fine sandy |CL-ML, ML, |A-2, A-4 | 0 | 0 |95-100|95-100|94-100|15-60 | 0-26 |NP-7 | | loam, loamy | SC-SM, SM | | | | | | | | | | | fine sand | | | | | | | | | | | 12-32 |Sandy clay |CL, CL-ML, |A-4, A-6 | 0 | 0 |95-100|95-100|90-100|36-65 |20-37 | 5-16 | | loam, fine | SC, SC-SM | | | | | | | | | | | sandy loam | | | | | | | | | | | 32-54 |Sandy clay |CL, CL-ML, |A-4, A-6 | 0 | 0 |95-100|95-100|90-100|36-65 |20-37 | 5-16 | | loam, fine | SC, SC-SM | | | | | | | | | | | sandy loam | | | | | | | | | | | 54-72 |Sandy clay |CL, CL-ML, |A-2, A-4, A-6| 0 | 0 |75-100|70-100|60-100|25-65 |20-37 | 5-16 | | loam, fine | SC, SC-SM | | | | | | | | | | | sandy loam | | | | | | | | | | | 72-80 |Fine sandy |CL, CL-ML, |A-2, A-4, A-6| 0 | 0 |75-100|75-100|60-100|25-65 |20-37 | 5-16 | | loam, sandy | SC, SC-SM | | | | | | | | | | | clay loam | | | | | | | | | | | | | | | | | | | | | | HawB: | | | | | | | | | | | | Hawley----------| 0-10 |Loamy fine sand|SM |A-2 | 0 | 0 | 100 |98-100|90-100|15-35 | 0-14 | NP | 10-24 |Fine sandy |CL-ML, SC, |A-4 | 0 | 0 | 100 |98-100|90-100|45-75 |15-30 |NP-10 | | loam, loam | SC-SM, SM | | | | | | | | | | 24-38 |Fine sandy |CL-ML, SC, |A-4 | 0 | 0 | 100 |98-100|90-100|45-75 |15-30 |NP-10 | | loam, loam | SC-SM, SM | | | | | | | | | | 38-49 |Fine sandy |CL-ML, SC, |A-4 | 0 | 0 | 100 |98-100|90-100|45-75 |15-30 |NP-10 | | loam, loam | SC-SM, SM | | | | | | | | | | 49-80 |Stratified |CL-ML, ML, |A-2, A-4, | 0 | 0 | 100 |98-100|90-100|30-70 | 0-42 |NP-19 | | loamy fine | SC-SM, SM | A-6, A-7 | | | | | | | | | | sand to silty | | | | | | | | | | | | clay loam | | | | | | | | | | | | | | | | | | | | | |
386 Soil Survey Engineering Index Properties—Continued _____________________________________________________________________________________________________________________________ | | | Classification | Fragments | Percentage passing | | Map symbol | Depth | USDA texture | | | sieve number-- |Liquid| Plas- _____________________________________________________________________ and soil name | | | | | >10 | 3-10 | | | | |limit |ticity | | | Unified | AASHTO |inches|inches| 4 | 10 | 40 | 200 | |index _____________________________________________________________________________________________________________________________ | In | | | | Pct | Pct | | | | | Pct | __ ___ ___ ___ | | | | | | | | | | | | ICGD3: | | | | | | | | | | | | Ironmound-------| 0-5 |Loam |CL, CL-ML |A-4, A-6 | 0 | 0 |85-100|85-100|76-100|52-90 |24-35 | 4-13 | 5-12 |Loam, fine |CL, CL-ML, ML|A-4, A-6 | 0 | 0 |85-100|80-100|76-100|52-85 |14-35 |NP-14 | | sandy loam | | | | | | | | | | | 12-20 |Bedrock | | | --- | --- | --- | --- | --- | --- | --- | --- | | | | | | | | | | | | Coyle-----------| 0-8 |Loam |CL, CL-ML |A-4, A-6 | 0 | 0 | 100 | 100 |96-100|65-85 |25-35 | 4-13 | 8-21 |Clay loam, |CL, SC |A-2, A-4, A-6| 0 | 0 |85-100|85-100|80-100|30-90 |25-40 | 7-18 | | sandy clay | | | | | | | | | | | | loam | | | | | | | | | | | 21-35 |Clay loam, |CL, CL-ML, |A-2, A-4, A-6| 0 | 0-45 |55-100|55-100|50-100|20-90 |22-40 | 4-18 | | sandy clay | SC, SC-SM | | | | | | | | | | | loam, fine | | | | | | | | | | | | sandy loam | | | | | | | | | | | 35-40 |Bedrock | | | --- | --- | --- | --- | --- | --- | --- | --- | | | | | | | | | | | | Grainola--------| 0-4 |Clay loam |CL |A-6, A-7 | 0-6 | 0-10 |80-100|75-100|72-100|60-98 |37-50 |14-25 | 4-22 |Clay, clay |CH, CL, SC |A-6, A-7 | 0-6 | 0-10 |80-100|75-100|72-100|49-98 |37-60 |15-34 | | loam, silty | | | | | | | | | | | | clay | | | | | | | | | | | 22-34 |Clay, clay |CH, CL |A-6, A-7 | 0 | 0 | 100 | 100 |96-100|80-99 |37-60 |15-34 | | loam, silty | | | | | | | | | | | | clay | | | | | | | | | | | 34-40 |Bedrock | | | --- | --- | --- | --- | --- | --- | --- | --- | | | | | | | | | | | | IrCE: | | | | | | | | | | | | Ironmound-------| 0-6 |Fine sandy loam|CL-ML, ML, |A-2, A-4 | 0 | 0 |85-100|85-100|80-100|30-60 |14-26 |NP-7 | | | SC-SM, SM | | | | | | | | | | 6-15 |Fine sandy |CL, CL-ML, ML|A-4, A-6 | 0 | 0 |85-100|80-100|76-100|52-85 |14-35 | 2-18 | | loam, loam | | | | | | | | | | | 15-20 |Bedrock | | | --- | --- | --- | --- | --- | --- | --- | --- | | | | | | | | | | | | Coyle-----------| 0-8 |Loam |CL, CL-ML |A-4, A-6 | 0 | 0 |85-100|85-100|76-100|52-97 |24-35 | 4-13 | 8-16 |Clay loam, |CL, SC |A-2, A-4, A-6| 0 | 0 |85-100|85-100|80-100|30-90 |25-40 | 7-18 | | sandy clay | | | | | | | | | | | | loam | | | | | | | | | | | 16-26 |Clay loam, |CL, SC |A-2, A-4, A-6| 0 | 0 |85-100|85-100|80-100|30-90 |25-40 | 7-18 | | sandy clay | | | | | | | | | | | | loam | | | | | | | | | | | 26-40 |Bedrock | | | --- | --- | --- | --- | --- | --- | --- | --- | | | | | | | | | | | | IroC2: | | | | | | | | | | | | Ironmound-------| 0-7 |Loam |CL, CL-ML |A-4, A-6 | 0 | 0 |85-100|85-100|76-100|52-97 |24-35 | 4-13 | 7-16 |Loam, fine |CL, CL-ML, ML|A-4, A-6 | 0 | 0 |85-100|80-100|76-100|52-85 |14-35 | 2-18 | | sandy loam | | | | | | | | | | | 16-40 |Bedrock | | | --- | --- | --- | --- | --- | --- | --- | --- | | | | | | | | | | | |
Logan County, Oklahoma 387 Engineering Index Properties—Continued _____________________________________________________________________________________________________________________________ | | | Classification | Fragments | Percentage passing | | Map symbol | Depth | USDA texture | | | sieve number-- |Liquid| Plas- _____________________________________________________________________ and soil name | | | | | >10 | 3-10 | | | | |limit |ticity | | | Unified | AASHTO |inches|inches| 4 | 10 | 40 | 200 | |index _____________________________________________________________________________________________________________________________ | In | | | | Pct | Pct | | | | | Pct | __ ___ ___ ___ | | | | | | | | | | | | KgfB: | | | | | | | | | | | | Kingfisher------| 0-10 |Silt loam |CL, CL-ML, ML|A-4, A-6 | 0 | 0 | 100 | 100 |96-100|80-97 |22-37 | 2-13 | 10-22 |Silty clay |CL |A-7, A-6 | 0 | 0 | 100 | 100 |96-100|80-98 |33-43 |12-20 | | loam, clay | | | | | | | | | | | | loam | | | | | | | | | | | 22-32 |Silty clay |CH, CL |A-6, A-7 | 0 | 0 | 100 | 100 |96-100|80-99 |33-60 |12-35 | | loam, clay | | | | | | | | | | | | loam, silty | | | | | | | | | | | | clay | | | | | | | | | | | 32-38 |Silty clay |CH, CL |A-6, A-7 | 0 | 0 | 100 | 100 |96-100|80-99 |33-60 |12-35 | | loam, clay | | | | | | | | | | | | loam, silty | | | | | | | | | | | | clay | | | | | | | | | | | 38-40 |Bedrock | | | --- | --- | --- | --- | --- | --- | --- | --- | | | | | | | | | | | | KinC2: | | | | | | | | | | | | Kingfisher------| 0-8 |Loam |CL, CL-ML |A-4, A-6 | 0 | 0 | 100 | 100 |96-100|65-85 |24-37 | 4-14 | 8-13 |Silty clay |CL |A-6, A-7 | 0 | 0 | 100 | 100 |96-100|80-98 |33-43 |12-20 | | loam, clay | | | | | | | | | | | | loam | | | | | | | | | | | 13-20 |Silty clay |CL |A-6, A-7 | 0 | 0 | 100 | 100 |96-100|80-98 |33-43 |12-20 | | loam, clay | | | | | | | | | | | | loam | | | | | | | | | | | 20-27 |Clay loam, |CH, CL |A-6, A-7 | 0 | 0 | 100 | 100 |96-100|80-99 |33-60 |12-35 | | silty clay | | | | | | | | | | | | loam, silty | | | | | | | | | | | | clay | | | | | | | | | | | 27-40 |Bedrock | | | --- | --- | --- | --- | --- | --- | --- | --- | | | | | | | | | | | |
388 Soil Survey Engineering Index Properties—Continued _____________________________________________________________________________________________________________________________ | | | Classification | Fragments | Percentage passing | | Map symbol | Depth | USDA texture | | | sieve number-- |Liquid| Plas- _____________________________________________________________________ and soil name | | | | | >10 | 3-10 | | | | |limit |ticity | | | Unified | AASHTO |inches|inches| 4 | 10 | 40 | 200 | |index _____________________________________________________________________________________________________________________________ | In | | | | Pct | Pct | | | | | Pct | __ ___ ___ ___ | | | | | | | | | | | | KonB: | | | | | | | | | | | | Konawa----------| 0-7 |Loamy fine sand|SM |A-2 | 0 | 0 | 100 |98-100|90-100|15-35 | 0-14 | NP | 7-12 |Fine sand, |CL-ML, ML, |A-2, A-3, A-4| 0 | 0 | 100 |98-100|82-100| 3-60 | 0-26 |NP-7 | | loamy fine | SC-SM, SM | | | | | | | | | | | sand, fine | | | | | | | | | | | | sandy loam | | | | | | | | | | | 12-25 |Sandy clay |CL, ML, SC, |A-4, A-6 | 0 | 0 | 100 |98-100|90-100|36-65 |14-37 |NP-16 | | loam, fine | SM | | | | | | | | | | | sandy loam | | | | | | | | | | | 25-38 |Sandy clay |CL, ML, SC, |A-4, A-6 | 0 | 0 | 100 |98-100|90-100|36-65 |14-37 |NP-16 | | loam, fine | SM | | | | | | | | | | | sandy loam | | | | | | | | | | | 38-52 |Fine sandy |CL, ML, SC, |A-4, A-6 | 0 | 0 | 100 |98-100|90-100|36-65 |14-37 |NP-16 | | loam, sandy | SM | | | | | | | | | | | clay loam | | | | | | | | | | | 52-80 |Loamy fine |CL-ML, ML, |A-2, A-4, A-6| 0 | 0 | 100 |98-100|90-100|15-65 | 0-37 |NP-16 | | sand, sandy | SC-SM, SM | | | | | | | | | | | clay loam, | | | | | | | | | | | | fine sandy | | | | | | | | | | | | loam | | | | | | | | | | | | | | | | | | | | | | KonD2: | | | | | | | | | | | | Konawa----------| 0-9 |Loamy fine sand|SM |A-2 | 0 | 0 | 100 |98-100|90-100|15-35 | 0-14 | NP | 9-23 |Sandy clay |CL, ML, SC, |A-4, A-6 | 0 | 0 | 100 |98-100|90-100|36-65 |14-37 |NP-16 | | loam, fine | SM | | | | | | | | | | | sandy loam | | | | | | | | | | | 23-38 |Sandy clay |CL, ML, SC, |A-4, A-6 | 0 | 0 | 100 |98-100|90-100|36-65 |14-37 |NP-16 | | loam, fine | SM | | | | | | | | | | | sandy loam | | | | | | | | | | | 38-49 |Fine sandy |CL, ML, SC, |A-4, A-6 | 0 | 0 | 100 |98-100|90-100|36-65 |14-37 |NP-16 | | loam, sandy | SM | | | | | | | | | | | clay loam | | | | | | | | | | | 49-70 |Fine sandy |CL-ML, ML, |A-2, A-4, A-6| 0 | 0 | 100 |98-100|90-100|15-65 | 0-37 |NP-16 | | loam, sandy | SC-SM, SM | | | | | | | | | | | clay loam, | | | | | | | | | | | | loamy fine | | | | | | | | | | | | sand | | | | | | | | | | | 70-80 |Fine sandy |CL-ML, ML, |A-2, A-4, A-6| 0 | 0 | 100 |98-100|90-100|15-65 | 0-37 |NP-16 | | loam, sandy | SC-SM, SM | | | | | | | | | | | clay loam, | | | | | | | | | | | | loamy fine | | | | | | | | | | | | sand | | | | | | | | | | | | | | | | | | | | | |
Logan County, Oklahoma 389 Engineering Index Properties—Continued _____________________________________________________________________________________________________________________________ | | | Classification | Fragments | Percentage passing | | Map symbol | Depth | USDA texture | | | sieve number-- |Liquid| Plas- _____________________________________________________________________ and soil name | | | | | >10 | 3-10 | | | | |limit |ticity | | | Unified | AASHTO |inches|inches| 4 | 10 | 40 | 200 | |index _____________________________________________________________________________________________________________________________ | In | | | | Pct | Pct | | | | | Pct | __ ___ ___ ___ | | | | | | | | | | | | KrdA: | | | | | | | | | | | | Kirkland--------| 0-8 |Silt loam |CL, CL-ML, ML|A-4, A-6 | 0 | 0 | 100 | 100 |96-100|80-97 |22-37 | 2-13 | 8-19 |Silty clay, |CH, CL |A-7 | 0 | 0 | 100 | 100 |96-100|90-99 |41-65 |18-38 | | clay | | | | | | | | | | | 19-41 |Silty clay, |CH, CL |A-7 | 0 | 0 | 100 | 100 |96-100|90-99 |41-65 |18-38 | | clay | | | | | | | | | | | 41-59 |Silty clay, |CH, CL |A-7 | 0 | 0 | 100 | 100 |96-100|90-99 |41-65 |18-38 | | clay | | | | | | | | | | | 59-85 |Clay, silty |CH, CL |A-7 | 0 | 0 | 100 | 100 |96-100|76-99 |41-70 |26-45 | | clay, clay | | | | | | | | | | | | loam | | | | | | | | | | | 85-96 |Bedrock | | | --- | --- | --- | --- | --- | --- | --- | --- | | | | | | | | | | | | KrkB: | | | | | | | | | | | | Kirkland--------| 0-9 |Silty clay loam|CL |A-6, A-7 | 0 | 0 | 100 | 100 |96-100|90-98 |33-42 |12-19 | 9-34 |Silty clay, |CH, CL |A-7 | 0 | 0 | 100 | 100 |96-100|90-99 |41-65 |18-38 | | clay | | | | | | | | | | | 34-48 |Silty clay, |CH, CL |A-7 | 0 | 0 | 100 | 100 |96-100|90-99 |41-65 |18-38 | | clay | | | | | | | | | | | 48-57 |Silty clay, |CH, CL |A-7 | 0 | 0 | 100 | 100 |96-100|90-99 |41-65 |18-38 | | clay | | | | | | | | | | | 57-82 |Clay, silty |CH, CL |A-7 | 0 | 0 | 100 | 100 |96-100|76-99 |41-70 |26-45 | | clay, clay | | | | | | | | | | | | loam | | | | | | | | | | | 82-98 |Bedrock | | | --- | --- | --- | --- | --- | --- | --- | --- | | | | | | | | | | | | LarA: | | | | | | | | | | | | Lawrie----------| 0-8 |Silt loam |CL, CL-ML, ML|A-4, A-6 | 0 | 0 | 100 | 100 |96-100|65-98 |22-37 | 2-14 | 8-20 |Silt loam |CL, CL-ML, ML|A-4, A-6 | 0 | 0 | 100 | 100 |96-100|65-98 |22-37 | 2-14 | 20-27 |Silty clay |CL |A-7, A-4, A-6| 0 | 0 | 100 | 100 |96-100|65-98 |30-43 | 8-19 | | loam, silt | | | | | | | | | | | | loam | | | | | | | | | | | 27-38 |Silty clay |CL |A-4, A-6, A-7| 0 | 0 | 100 | 100 |96-100|65-98 |30-43 | 8-19 | | loam, silt | | | | | | | | | | | | loam | | | | | | | | | | | 38-45 |Silty clay |CL |A-4, A-6, A-7| 0 | 0 | 100 | 100 |96-100|65-98 |30-43 | 8-19 | | loam, silt | | | | | | | | | | | | loam | | | | | | | | | | | 45-80 |Loam, clay |CL, SC |A-4, A-6, A-7| 0 | 0 | 100 | 100 |90-100|36-98 |30-50 | 9-26 | | loam, silty | | | | | | | | | | | | clay loam | | | | | | | | | | | | | | | | | | | | | |
390 Soil Survey Engineering Index Properties—Continued _____________________________________________________________________________________________________________________________ | | | Classification | Fragments | Percentage passing | | Map symbol | Depth | USDA texture | | | sieve number-- |Liquid| Plas- _____________________________________________________________________ and soil name | | | | | >10 | 3-10 | | | | |limit |ticity | | | Unified | AASHTO |inches|inches| 4 | 10 | 40 | 200 | |index _____________________________________________________________________________________________________________________________ | In | | | | Pct | Pct | | | | | Pct | __ ___ ___ ___ | | | | | | | | | | | | LawA: | | | | | | | | | | | | Lawrie----------| 0-10 |Loam |CL, CL-ML, ML|A-4, A-6 | 0 | 0 | 100 | 100 |96-100|65-98 |22-37 | 2-14 | 10-26 |Silty clay |CL |A-4, A-6, A-7| 0 | 0 | 100 | 100 |96-100|65-98 |30-43 | 8-19 | | loam, silt | | | | | | | | | | | | loam | | | | | | | | | | | 26-34 |Silty clay |CL |A-4, A-6, A-7| 0 | 0 | 100 | 100 |96-100|65-98 |30-43 | 8-19 | | loam, silt | | | | | | | | | | | | loam | | | | | | | | | | | 34-51 |Clay loam, |CL, SC |A-4, A-6, A-7| 0 | 0 | 100 | 100 |90-100|36-98 |30-50 | 9-26 | | silty clay | | | | | | | | | | | | loam, silt | | | | | | | | | | | | loam, loam | | | | | | | | | | | 51-72 |Loam, silt |CL |A-4, A-6, A-7| 0 | 0 | 100 | 100 |96-100|65-98 |30-43 | 8-19 | | loam, clay | | | | | | | | | | | | loam, silty | | | | | | | | | | | | clay loam | | | | | | | | | | | 72-90 |Loam, clay |CL, SC |A-4, A-6, A-7| 0 | 0 | 100 | 100 |90-100|36-98 |30-50 | 9-26 | | loam, sandy | | | | | | | | | | | | clay loam, | | | | | | | | | | | | silty clay | | | | | | | | | | | | loam | | | | | | | | | | | | | | | | | | | | | | LerA: | | | | | | | | | | | | Lebron----------| 0-5 |Clay |CH, CL |A-7 | 0 | 0 | 100 | 100 |96-100|90-95 |45-60 |19-34 | 5-14 |Silty clay, |CH, CL |A-6, A-7 | 0 | 0 | 100 | 100 |96-100|80-99 |37-60 |15-34 | | clay, silty | | | | | | | | | | | | clay loam, | | | | | | | | | | | | clay loam | | | | | | | | | | | 14-28 |Stratified silt|SM, SP-SM |A-2, A-3 | 0 | 0 | 100 |98-100|82-100| 5-35 |22-60 |NP-34 | | loam to clay | | | | | | | | | | | 28-80 |Stratified sand|SM, SP-SM |A-2, A-3 | 0 | 0 | 100 |98-100|82-100| 5-35 | 0-14 | NP | | to loamy fine | | | | | | | | | | | | sand | | | | | | | | | | | | | | | | | | | | | |
Logan County, Oklahoma 391 Engineering Index Properties—Continued _____________________________________________________________________________________________________________________________ | | | Classification | Fragments | Percentage passing | | Map symbol | Depth | USDA texture | | | sieve number-- |Liquid| Plas- _____________________________________________________________________ and soil name | | | | | >10 | 3-10 | | | | |limit |ticity | | | Unified | AASHTO |inches|inches| 4 | 10 | 40 | 200 | |index _____________________________________________________________________________________________________________________________ | In | | | | Pct | Pct | | | | | Pct | __ ___ ___ ___ | | | | | | | | | | | | LitB: | | | | | | | | | | | | Littleaxe-------| 0-5 |Fine sandy loam|CL-ML, ML, |A-4 | 0 | 0 | 100 |98-100|94-100|36-60 |15-26 |NP-7 | | | SC-SM, SM | | | | | | | | | | 5-9 |Loamy fine |CL-ML, ML, |A-2, A-4 | 0 | 0 | 100 |98-100|90-100|15-60 | 0-26 |NP-7 | | sand, fine | SC-SM, SM | | | | | | | | | | | sandy loam | | | | | | | | | | | 9-30 |Sandy clay |CL, ML, SC, |A-4, A-6 | 0 | 0 | 100 |98-100|90-100|36-65 |20-37 | 2-16 | | loam, fine | SM | | | | | | | | | | | sandy loam | | | | | | | | | | | 30-45 |Sandy clay |CL, ML, SC, |A-4, A-6 | 0 | 0 | 100 |98-100|90-100|36-65 |20-37 | 2-16 | | loam, fine | SM | | | | | | | | | | | sandy loam | | | | | | | | | | | 45-58 |Fine sandy |CL, ML, SC, |A-2, A-4, A-6| 0 | 0 |85-100|75-100|60-100|25-65 |20-37 | 2-16 | | loam, sandy | SM | | | | | | | | | | | clay loam | | | | | | | | | | | 58-60 |Bedrock | | | --- | --- | --- | --- | --- | --- | --- | --- | | | | | | | | | | | | LitC2: | | | | | | | | | | | | Littleaxe-------| 0-6 |Fine sandy loam|CL-ML, ML, |A-4 | 0 | 0 | 100 |98-100|94-100|36-60 |15-26 |NP-7 | | | SC-SM, SM | | | | | | | | | | 6-17 |Sandy clay |CL, ML, SC, |A-4, A-6 | 0 | 0 | 100 |98-100|90-100|36-65 |20-37 | 2-16 | | loam, fine | SM | | | | | | | | | | | sandy loam | | | | | | | | | | | 17-41 |Sandy clay |CL, ML, SC, |A-4, A-6 | 0 | 0 | 100 |98-100|90-100|36-65 |20-37 | 2-16 | | loam, fine | SM | | | | | | | | | | | sandy loam | | | | | | | | | | | 41-52 |Sandy clay |CL, ML, SC, |A-2, A-4, A-6| 0 | 0 |85-100|75-100|60-100|25-65 |20-37 | 2-16 | | loam, fine | SM | | | | | | | | | | | sandy loam | | | | | | | | | | | 52-60 |Bedrock | | | --- | --- | --- | --- | --- | --- | --- | --- | | | | | | | | | | | | M-W. | | | | | | | | | | | | Miscellaneous | | | | | | | | | | | | water | | | | | | | | | | | | | | | | | | | | | | | | MaID: | | | | | | | | | | | | Masham----------| 0-4 |Silty clay loam|CL |A-6, A-7 | 0 | 0 |90-100|85-100|80-100|70-98 |37-50 |15-26 | 4-16 |Silty clay |CH, CL |A-6, A-7 | 0 | 0 |90-100|90-100|85-100|80-99 |37-60 |15-34 | | loam, silty | | | | | | | | | | | | clay, clay | | | | | | | | | | | 16-35 |Bedrock | | | --- | --- | --- | --- | --- | --- | --- | --- | | | | | | | | | | | | Ironmound-------| 0-6 |Loam |CL, CL-ML |A-4, A-6 | 0 | 0 |85-100|85-100|76-100|52-97 |24-35 | 4-13 | 6-11 |Loam, fine |CL, CL-ML, ML|A-4, A-6 | 0 | 0 |85-100|80-100|76-100|52-85 |14-35 | 2-18 | | sandy loam | | | | | | | | | | | 11-36 |Bedrock | | | --- | --- | --- | --- | --- | --- | --- | --- | | | | | | | | | | | |
392 Soil Survey Engineering Index Properties—Continued _____________________________________________________________________________________________________________________________ | | | Classification | Fragments | Percentage passing | | Map symbol | Depth | USDA texture | | | sieve number-- |Liquid| Plas- _____________________________________________________________________ and soil name | | | | | >10 | 3-10 | | | | |limit |ticity | | | Unified | AASHTO |inches|inches| 4 | 10 | 40 | 200 | |index _____________________________________________________________________________________________________________________________ | In | | | | Pct | Pct | | | | | Pct | __ ___ ___ ___ | | | | | | | | | | | | MaIG: | | | | | | | | | | | | Masham----------| 0-4 |Clay loam |CL |A-6, A-7 | 0 | 0 |90-100|85-100|80-100|68-90 |37-50 |16-26 | 4-12 |Clay, silty |CH, CL |A-6, A-7 | 0 | 0 |90-100|90-100|85-100|80-99 |37-60 |15-34 | | clay, silty | | | | | | | | | | | | clay loam | | | | | | | | | | | 12-20 |Bedrock | | | --- | --- | --- | --- | --- | --- | --- | --- | | | | | | | | | | | | Ironmound-------| 0-6 |Loam |CL, CL-ML |A-4, A-6 | 0 | 0 |85-100|85-100|76-100|52-97 |24-35 | 4-13 | 6-15 |Loam, fine |CL, CL-ML, ML|A-4, A-6 | 0 | 0 |85-100|80-100|76-100|52-85 |14-35 | 2-18 | | sandy loam | | | | | | | | | | | 15-20 |Bedrock | | | --- | --- | --- | --- | --- | --- | --- | --- | | | | | | | | | | | | MinB: | | | | | | | | | | | | Minco-----------| 0-11 |Very fine sandy|CL-ML, ML |A-4 | 0 | 0 | 100 | 100 |94-100|51-75 |14-28 |NP-7 | | loam | | | | | | | | | | | 11-26 |Very fine sandy|CL, CL-ML, ML|A-4 | 0 | 0 | 100 | 100 |94-100|51-97 |14-31 |NP-10 | | loam, silt | | | | | | | | | | | | loam, loam | | | | | | | | | | | 26-37 |Very fine sandy|CL, CL-ML, ML|A-4 | 0 | 0 | 100 | 100 |94-100|51-97 |14-31 |NP-10 | | loam, silt | | | | | | | | | | | | loam, loam | | | | | | | | | | | 37-58 |Very fine sandy|CL, CL-ML, ML|A-4 | 0 | 0 | 100 | 100 |94-100|51-97 |14-31 |NP-10 | | loam, silt | | | | | | | | | | | | loam, loam | | | | | | | | | | | 58-80 |Very fine sandy|CL, CL-ML, ML|A-4 | 0 | 0 | 100 | 100 |94-100|51-97 |14-31 |NP-10 | | loam, silt | | | | | | | | | | | | loam, loam | | | | | | | | | | | | | | | | | | | | | |
Logan County, Oklahoma 393 Engineering Index Properties—Continued _____________________________________________________________________________________________________________________________ | | | Classification | Fragments | Percentage passing | | Map symbol | Depth | USDA texture | | | sieve number-- |Liquid| Plas- _____________________________________________________________________ and soil name | | | | | >10 | 3-10 | | | | |limit |ticity | | | Unified | AASHTO |inches|inches| 4 | 10 | 40 | 200 | |index _____________________________________________________________________________________________________________________________ | In | | | | Pct | Pct | | | | | Pct | __ ___ ___ ___ | | | | | | | | | | | | MinC: | | | | | | | | | | | | Minco-----------| 0-10 |Very fine sandy|CL-ML, ML |A-4 | 0 | 0 | 100 | 100 |94-100|51-75 |14-28 |NP-7 | | loam | | | | | | | | | | | 10-29 |Loam, silt |CL, CL-ML, ML|A-4 | 0 | 0 | 100 | 100 |94-100|51-97 |14-31 |NP-10 | | loam, very | | | | | | | | | | | | fine sandy | | | | | | | | | | | | loam | | | | | | | | | | | 29-40 |Loam, silt |CL, CL-ML, ML|A-4 | 0 | 0 | 100 | 100 |94-100|51-97 |14-31 |NP-10 | | loam, very | | | | | | | | | | | | fine sandy | | | | | | | | | | | | loam | | | | | | | | | | | 40-54 |Loam, silt |CL, CL-ML, ML|A-4 | 0 | 0 | 100 | 100 |94-100|51-97 |14-31 |NP-10 | | loam, very | | | | | | | | | | | | fine sandy | | | | | | | | | | | | loam | | | | | | | | | | | 54-80 |Loam, silt |CL, CL-ML, ML|A-4 | 0 | 0 | 100 | 100 |94-100|51-97 |14-31 |NP-10 | | loam, very | | | | | | | | | | | | fine sandy | | | | | | | | | | | | loam | | | | | | | | | | | | | | | | | | | | | | MinD: | | | | | | | | | | | | Minco-----------| 0-12 |Very fine sandy|CL-ML, ML |A-4 | 0 | 0 | 100 | 100 |94-100|51-75 |14-28 |NP-7 | | loam | | | | | | | | | | | 12-26 |Loam, silt |CL, CL-ML, ML|A-4 | 0 | 0 | 100 | 100 |94-100|51-97 |14-31 |NP-10 | | loam, very | | | | | | | | | | | | fine sandy | | | | | | | | | | | | loam | | | | | | | | | | | 26-47 |Loam, silt |CL, CL-ML, ML|A-4 | 0 | 0 | 100 | 100 |94-100|51-97 |14-31 |NP-10 | | loam, very | | | | | | | | | | | | fine sandy | | | | | | | | | | | | loam | | | | | | | | | | | 47-67 |Loam, silt |CL, CL-ML, ML|A-4 | 0 | 0 | 100 | 100 |94-100|51-97 |14-31 |NP-10 | | loam, very | | | | | | | | | | | | fine sandy | | | | | | | | | | | | loam | | | | | | | | | | | 67-80 |Loam, silt |CL, CL-ML, ML|A-4 | 0 | 0 | 100 | 100 |94-100|51-97 |14-31 |NP-10 | | loam, very | | | | | | | | | | | | fine sandy | | | | | | | | | | | | loam | | | | | | | | | | | | | | | | | | | | | |
394 Soil Survey Engineering Index Properties—Continued _____________________________________________________________________________________________________________________________ | | | Classification | Fragments | Percentage passing | | Map symbol | Depth | USDA texture | | | sieve number-- |Liquid| Plas- _____________________________________________________________________ and soil name | | | | | >10 | 3-10 | | | | |limit |ticity | | | Unified | AASHTO |inches|inches| 4 | 10 | 40 | 200 | |index _____________________________________________________________________________________________________________________________ | In | | | | Pct | Pct | | | | | Pct | __ ___ ___ ___ | | | | | | | | | | | | MinF: | | | | | | | | | | | | Minco-----------| 0-9 |Very fine sandy|CL-ML, ML |A-4 | 0 | 0 | 100 | 100 |94-100|51-75 |14-28 |NP-7 | | loam | | | | | | | | | | | 9-19 |Loam, silt |CL, CL-ML, ML|A-4 | 0 | 0 | 100 | 100 |94-100|51-97 |14-31 |NP-10 | | loam, very | | | | | | | | | | | | fine sandy | | | | | | | | | | | | loam | | | | | | | | | | | 19-39 |Loam, silt |CL, CL-ML, ML|A-4 | 0 | 0 | 100 | 100 |94-100|51-97 |14-31 |NP-10 | | loam, very | | | | | | | | | | | | fine sandy | | | | | | | | | | | | loam | | | | | | | | | | | 39-64 |Loam, silt |ML, CL, CL-ML|A-4 | 0 | 0 | 100 | 100 |94-100|51-97 |14-31 |NP-10 | | loam, very | | | | | | | | | | | | fine sandy | | | | | | | | | | | | loam | | | | | | | | | | | 64-70 |Loam, silt |CL, CL-ML, ML|A-4 | 0 | 0 | 100 | 100 |94-100|51-97 |14-31 |NP-10 | | loam, very | | | | | | | | | | | | fine sandy | | | | | | | | | | | | loam | | | | | | | | | | | 70-80 |Loam, silt |CL, CL-ML, ML|A-4 | 0 | 0 | 100 | 100 |94-100|51-97 |14-31 |NP-10 | | loam, very | | | | | | | | | | | | fine sandy | | | | | | | | | | | | loam | | | | | | | | | | | | | | | | | | | | | | MllA: | | | | | | | | | | | | Miller----------| 0-9 |Silty clay |CH, CL |A-7 | 0 | 0 | 100 | 100 |96-100|90-99 |41-60 |18-35 | 9-15 |Silty clay, |CH, CL |A-7 | 0 | 0 | 100 |98-100|96-100|90-99 |41-65 |20-40 | | clay, silty | | | | | | | | | | | | clay loam | | | | | | | | | | | 15-27 |Silty clay, |CH, CL |A-7 | 0 | 0 | 100 |98-100|96-100|90-99 |41-65 |20-40 | | clay, silty | | | | | | | | | | | | clay loam | | | | | | | | | | | 27-41 |Silty clay, |CH, CL |A-6, A-7 | 0 | 0 | 100 |98-100|96-100|80-99 |35-60 |15-35 | | clay, silty | | | | | | | | | | | | clay loam | | | | | | | | | | | 41-55 |Silty clay, |CH, CL |A-6, A-7 | 0 | 0 | 100 |98-100|96-100|80-99 |35-60 |15-35 | | clay, silty | | | | | | | | | | | | clay loam | | | | | | | | | | | 55-80 |Silty clay, |CH, CL |A-6, A-7 | 0 | 0 | 100 |98-100|96-100|80-99 |35-60 |15-35 | | clay, silty | | | | | | | | | | | | clay loam | | | | | | | | | | | | | | | | | | | | | |
Logan County, Oklahoma 395 Engineering Index Properties—Continued _____________________________________________________________________________________________________________________________ | | | Classification | Fragments | Percentage passing | | Map symbol | Depth | USDA texture | | | sieve number-- |Liquid| Plas- _____________________________________________________________________ and soil name | | | | | >10 | 3-10 | | | | |limit |ticity | | | Unified | AASHTO |inches|inches| 4 | 10 | 40 | 200 | |index _____________________________________________________________________________________________________________________________ | In | | | | Pct | Pct | | | | | Pct | __ ___ ___ ___ | | | | | | | | | | | | MulC: | | | | | | | | | | | | Mulhall---------| 0-11 |Loam |CL-ML, CL |A-4, A-6 | 0 | 0 | 100 | 100 |96-100|65-85 |25-35 | 5-13 | 11-17 |Loam, clay loam|CL |A-4, A-6 | 0 | 0 | 100 | 100 |96-100|65-90 |30-40 | 9-18 | 17-32 |Sandy clay |SC-SM, SC, |A-2, A-4, A-6| 0 | 0 |85-100|85-100|76-100|30-90 |25-40 | 7-18 | | loam, clay | CL, CL-ML | | | | | | | | | | | loam, loam | | | | | | | | | | | 32-40 |Sandy clay |SC-SM, SC, |A-2, A-4, A-6| 0 | 0 |85-100|85-100|76-100|30-90 |25-40 | 7-18 | | loam, clay | CL-ML, CL | | | | | | | | | | | loam, loam | | | | | | | | | | | 40-70 |Sandy clay |SC-SM, SC, |A-2, A-4, A-6| 0 | 0 |75-100|75-100|67-100|25-90 |25-40 | 7-18 | | loam, clay | CL-ML, CL | | | | | | | | | | | loam, loam | | | | | | | | | | | 70-82 |Bedrock | | | --- | --- | --- | --- | --- | --- | --- | --- | | | | | | | | | | | | MulC2: | | | | | | | | | | | | Mulhall---------| 0-10 |Loam |CL-ML, CL |A-4, A-6 | 0 | 0 | 100 | 100 |96-100|65-85 |25-35 | 5-13 | 10-22 |Sandy clay |CL, CL-ML, |A-2, A-4, A-6| 0 | 0 |85-100|85-100|76-100|30-90 |25-40 | 7-18 | | loam, clay | SC, SC-SM | | | | | | | | | | | loam, loam | | | | | | | | | | | 22-36 |Sandy clay |SC-SM, SC, |A-2, A-4, A-6| 0 | 0 |85-100|85-100|76-100|30-90 |25-40 | 7-18 | | loam, clay | CL-ML, CL | | | | | | | | | | | loam, loam | | | | | | | | | | | 36-54 |Sandy clay |SC, SC-SM, |A-2, A-4, A-6| 0 | 0 |85-100|80-100|72-100|28-90 |25-40 | 7-18 | | loam, clay | CL-ML, CL | | | | | | | | | | | loam, loam | | | | | | | | | | | 54-80 |Sandy clay |CL, CL-ML, |A-2, A-4, A-6| 0 | 0 |85-100|80-100|72-100|28-90 |25-40 | 7-18 | | loam, clay | SC, SC-SM | | | | | | | | | | | loam, loam | | | | | | | | | | | 80-90 |Bedrock | | | --- | --- | --- | --- | --- | --- | --- | --- | | | | | | | | | | | |
396 Soil Survey Engineering Index Properties—Continued _____________________________________________________________________________________________________________________________ | | | Classification | Fragments | Percentage passing | | Map symbol | Depth | USDA texture | | | sieve number-- |Liquid| Plas- _____________________________________________________________________ and soil name | | | | | >10 | 3-10 | | | | |limit |ticity | | | Unified | AASHTO |inches|inches| 4 | 10 | 40 | 200 | |index _____________________________________________________________________________________________________________________________ | In | | | | Pct | Pct | | | | | Pct | __ ___ ___ ___ | | | | | | | | | | | | NavA: | | | | | | | | | | | | Navina----------| 0-8 |Fine sandy loam|CL-ML, ML, |A-4 | 0 | 0 | 100 | 100 |94-100|36-60 |14-26 |NP-7 | | | SC-SM, SM | | | | | | | | | | 8-14 |Fine sandy |SM, SC, CL, |A-4, A-6, A-7| 0 | 0 | 100 |98-100|94-100|36-85 |14-43 |NP-20 | | loam, clay | ML | | | | | | | | | | | loam, sandy | | | | | | | | | | | | clay loam, | | | | | | | | | | | | loam | | | | | | | | | | | 14-33 |Sandy clay |SM, SC, ML, |A-4, A-6, A-7| 0 | 0 | 100 |98-100|94-100|36-85 |14-43 |NP-20 | | loam, clay | CL | | | | | | | | | | | loam, fine | | | | | | | | | | | | sandy loam | | | | | | | | | | | 33-41 |Sandy clay |SM, SC, ML, |A-4, A-6, A-7| 0 | 0 | 100 |98-100|94-100|36-85 |14-43 |NP-20 | | loam, clay | CL | | | | | | | | | | | loam, fine | | | | | | | | | | | | sandy loam | | | | | | | | | | | 41-71 |Fine sandy |CL-ML, ML, |A-4, A-6, A-7| 0 | 0 | 100 |98-100|94-100|36-85 |14-43 |NP-18 | | loam, sandy | SC-SM, SM | | | | | | | | | | | clay loam, | | | | | | | | | | | | loam | | | | | | | | | | | 71-80 |Loamy fine |SC-SM, SM, |A-2, A-4, A-6| 0 | 0 | 100 |98-100|96-100|15-85 | 0-31 |NP-13 | | sand, fine | ML, CL-ML | | | | | | | | | | | sandy loam, | | | | | | | | | | | | loam | | | | | | | | | | | | | | | | | | | | | |
Logan County, Oklahoma 397 Engineering Index Properties—Continued _____________________________________________________________________________________________________________________________ | | | Classification | Fragments | Percentage passing | | Map symbol | Depth | USDA texture | | | sieve number-- |Liquid| Plas- _____________________________________________________________________ and soil name | | | | | >10 | 3-10 | | | | |limit |ticity | | | Unified | AASHTO |inches|inches| 4 | 10 | 40 | 200 | |index _____________________________________________________________________________________________________________________________ | In | | | | Pct | Pct | | | | | Pct | __ ___ ___ ___ | | | | | | | | | | | | NavB: | | | | | | | | | | | | Navina----------| 0-7 |Fine sandy loam|SM, SC-SM, |A-4 | 0 | 0 | 100 | 100 |94-100|36-60 |14-26 |NP-7 | | | ML, CL-ML | | | | | | | | | | 7-16 |Fine sandy |CL, ML, SC, |A-4, A-6, A-7| 0 | 0 | 100 | 100 |94-100|36-85 |14-43 |NP-20 | | loam, clay | SM | | | | | | | | | | | loam, sandy | | | | | | | | | | | | clay loam, | | | | | | | | | | | | loam | | | | | | | | | | | 16-37 |Sandy clay |SM, SC, ML, |A-4, A-6, A-7| 0 | 0 | 100 |98-100|94-100|36-85 |14-43 |NP-20 | | loam, clay | CL | | | | | | | | | | | loam, fine | | | | | | | | | | | | sandy loam | | | | | | | | | | | 37-60 |Fine sandy |CL, SM, SC, |A-4, A-6, A-7| 0 | 0 | 100 |98-100|94-100|36-85 |14-43 |NP-20 | | loam, clay | ML | | | | | | | | | | | loam, sandy | | | | | | | | | | | | clay loam | | | | | | | | | | | 60-71 |Fine sandy |ML, SM, |A-4, A-6, A-7| 0 | 0 | 100 |98-100|94-100|36-85 |14-43 |NP-18 | | loam, sandy | SC-SM, CL-ML| | | | | | | | | | | clay loam, | | | | | | | | | | | | loam | | | | | | | | | | | 71-80 |Fine sandy |SM, CL-ML, |A-2, A-4, A-6| 0 | 0 | 100 |98-100|96-100|15-85 | 0-31 |NP-13 | | loam, loamy | ML, SC-SM | | | | | | | | | | | fine sand, | | | | | | | | | | | | loam | | | | | | | | | | | | | | | | | | | | | | NeGD4: | | | | | | | | | | | | Newalla---------| 0-6 |Fine sandy loam|CL-ML, ML, |A-4 | 0 | 0 | 100 |98-100|94-100|36-60 |14-26 |NP-7 | | | SC-SM, SM | | | | | | | | | | 6-11 |Sandy clay |CL, SC |A-4, A-6 | 0 | 0 | 100 | 100 |96-100|36-85 |25-40 | 7-18 | | loam, clay | | | | | | | | | | | | loam | | | | | | | | | | | 11-28 |Clay, silty |CL, CH |A-7 | 0 | 0 | 100 | 100 |96-100|80-99 |41-60 |18-34 | | clay | | | | | | | | | | | 28-46 |Clay, sandy |CH, SC, GC, |A-2, A-6, A-7| 0 | 0 |40-100|35-100|30-100|15-99 |35-60 |14-34 | | clay, silty | CL | | | | | | | | | | | clay, very | | | | | | | | | | | | gravelly silty| | | | | | | | | | | | clay | | | | | | | | | | | 46-60 |Bedrock | | | --- | --- | --- | --- | --- | --- | --- | --- | | | | | | | | | | | | Gullied land. | | | | | | | | | | | | | | | | | | | | | | | |
398 Soil Survey Engineering Index Properties—Continued _____________________________________________________________________________________________________________________________ | | | Classification | Fragments | Percentage passing | | Map symbol | Depth | USDA texture | | | sieve number-- |Liquid| Plas- _____________________________________________________________________ and soil name | | | | | >10 | 3-10 | | | | |limit |ticity | | | Unified | AASHTO |inches|inches| 4 | 10 | 40 | 200 | |index _____________________________________________________________________________________________________________________________ | In | | | | Pct | Pct | | | | | Pct | __ ___ ___ ___ | | | | | | | | | | | | NewB: | | | | | | | | | | | | Newalla---------| 0-6 |Fine sandy loam|SM, SC-SM, |A-4 | 0 | 0 | 100 |98-100|94-100|36-60 |14-26 |NP-7 | | | ML, CL-ML | | | | | | | | | | 6-12 |Fine sandy loam|SM, SC-SM, |A-4 | 0 | 0 | 100 |98-100|94-100|36-60 |14-26 |NP-7 | | | ML, CL-ML | | | | | | | | | | 12-19 |Sandy clay |SC, CL |A-4, A-6 | 0 | 0 | 100 | 100 |96-100|36-85 |25-40 | 7-18 | | loam, clay | | | | | | | | | | | | loam | | | | | | | | | | | 19-41 |Clay, silty |CL, CH |A-7 | 0 | 0 | 100 | 100 |96-100|80-99 |41-60 |18-34 | | clay | | | | | | | | | | | 41-46 |Clay, very |SC, CH, GC, |A-2, A-6, A-7| 0 | 0 |40-100|35-100|30-100|15-99 |35-60 |14-34 | | gravelly silty| CL | | | | | | | | | | | clay, silty | | | | | | | | | | | | clay, sandy | | | | | | | | | | | | clay | | | | | | | | | | | 46-52 |Bedrock | | | --- | --- | --- | --- | --- | --- | --- | --- | | | | | | | | | | | | NorA: | | | | | | | | | | | | Norge-----------| 0-11 |Silt loam |ML, CL-ML, CL|A-4, A-6 | 0 | 0 | 100 | 100 |96-100|65-97 |22-35 | 2-14 | 11-16 |Silt loam |CL-ML, ML, CL|A-4, A-6 | 0 | 0 | 100 | 100 |96-100|65-97 |22-35 | 2-14 | 16-23 |Silt loam, clay|CL, CL-ML, ML|A-4, A-6, A-7| 0 | 0 | 100 | 100 |96-100|65-98 |22-43 | 2-20 | | loam, silty | | | | | | | | | | | | clay loam | | | | | | | | | | | 23-43 |Silty clay |CL |A-6, A-7 | 0 | 0 | 100 | 100 |96-100|80-98 |33-43 |12-20 | | loam, clay | | | | | | | | | | | | loam | | | | | | | | | | | 43-61 |Silty clay |CL |A-6, A-7 | 0 | 0 | 100 | 100 |96-100|80-98 |33-43 |12-20 | | loam, clay | | | | | | | | | | | | loam | | | | | | | | | | | 61-80 |Silty clay |CL |A-6, A-7 | 0 | 0 | 100 | 100 |96-100|80-98 |33-49 |12-22 | | loam, clay | | | | | | | | | | | | loam, silty | | | | | | | | | | | | clay | | | | | | | | | | | | | | | | | | | | | |
Logan County, Oklahoma 399 Engineering Index Properties—Continued _____________________________________________________________________________________________________________________________ | | | Classification | Fragments | Percentage passing | | Map symbol | Depth | USDA texture | | | sieve number-- |Liquid| Plas- _____________________________________________________________________ and soil name | | | | | >10 | 3-10 | | | | |limit |ticity | | | Unified | AASHTO |inches|inches| 4 | 10 | 40 | 200 | |index _____________________________________________________________________________________________________________________________ | In | | | | Pct | Pct | | | | | Pct | __ ___ ___ ___ | | | | | | | | | | | | NorB: | | | | | | | | | | | | Norge-----------| 0-12 |Silt loam |ML, CL-ML, CL|A-4, A-6 | 0 | 0 | 100 | 100 |96-100|65-97 |22-35 | 2-14 | 12-18 |Silt loam, clay|ML, CL-ML, CL|A-4, A-6, A-7| 0 | 0 | 100 | 100 |96-100|65-98 |22-43 | 2-20 | | loam, silty | | | | | | | | | | | | clay loam | | | | | | | | | | | 18-24 |Silty clay |CL |A-6, A-7 | 0 | 0 | 100 | 100 |96-100|80-98 |33-43 |12-20 | | loam, clay | | | | | | | | | | | | loam | | | | | | | | | | | 24-45 |Silty clay |CL |A-6, A-7 | 0 | 0 | 100 | 100 |96-100|80-98 |33-43 |12-20 | | loam, clay | | | | | | | | | | | | loam | | | | | | | | | | | 45-62 |Silty clay |CL |A-6, A-7 | 0 | 0 | 100 | 100 |96-100|80-98 |33-49 |12-22 | | loam, clay | | | | | | | | | | | | loam, silty | | | | | | | | | | | | clay | | | | | | | | | | | 62-80 |Silty clay |CL |A-6, A-7 | 0 | 0 | 100 | 100 |96-100|80-98 |33-49 |12-22 | | loam, clay | | | | | | | | | | | | loam, silty | | | | | | | | | | | | clay | | | | | | | | | | | | | | | | | | | | | | NorC2: | | | | | | | | | | | | Norge-----------| 0-8 |Silt loam |CL, CL-ML, ML|A-4, A-6 | 0 | 0 | 100 | 100 |96-100|65-97 |22-35 | 2-14 | 8-15 |Silty clay |CL |A-6, A-7 | 0 | 0 | 100 | 100 |96-100|80-98 |33-43 |12-20 | | loam, clay | | | | | | | | | | | | loam | | | | | | | | | | | 15-33 |Silty clay |CL |A-6, A-7 | 0 | 0 | 100 | 100 |96-100|80-98 |33-43 |12-20 | | loam, clay | | | | | | | | | | | | loam | | | | | | | | | | | 33-43 |Silty clay |CL |A-7, A-6 | 0 | 0 | 100 | 100 |96-100|80-98 |33-43 |12-20 | | loam, clay | | | | | | | | | | | | loam | | | | | | | | | | | 43-65 |Silty clay |CL |A-6, A-7 | 0 | 0 | 100 | 100 |96-100|80-98 |33-49 |12-22 | | loam, clay | | | | | | | | | | | | loam, silty | | | | | | | | | | | | clay | | | | | | | | | | | 65-80 |Clay loam, |CL |A-6, A-7 | 0 | 0 | 100 | 100 |96-100|80-98 |33-49 |12-22 | | silty clay | | | | | | | | | | | | loam, silty | | | | | | | | | | | | clay | | | | | | | | | | | | | | | | | | | | | |
400 Soil Survey Engineering Index Properties—Continued _____________________________________________________________________________________________________________________________ | | | Classification | Fragments | Percentage passing | | Map symbol | Depth | USDA texture | | | sieve number-- |Liquid| Plas- _____________________________________________________________________ and soil name | | | | | >10 | 3-10 | | | | |limit |ticity | | | Unified | AASHTO |inches|inches| 4 | 10 | 40 | 200 | |index _____________________________________________________________________________________________________________________________ | In | | | | Pct | Pct | | | | | Pct | __ ___ ___ ___ | | | | | | | | | | | | OWHD: | | | | | | | | | | | | Oil waste land. | | | | | | | | | | | | | | | | | | | | | | | | Huska-----------| 0-8 |Silt loam |CL-ML, CL |A-4, A-6 | 0 | 0 | 100 | 100 |94-100|51-97 |24-37 | 5-14 | 8-19 |Silty clay |CL, CH |A-6, A-7 | 0 | 0 | 100 | 100 |96-100|80-99 |37-60 |15-34 | | loam, silty | | | | | | | | | | | | clay, clay | | | | | | | | | | | | loam | | | | | | | | | | | 19-40 |Silty clay |CH, CL |A-6, A-7 | 0 | 0 | 100 | 100 |96-100|80-99 |37-60 |15-34 | | loam, silty | | | | | | | | | | | | clay, clay | | | | | | | | | | | | loam | | | | | | | | | | | 40-51 |Silty clay |CH, CL |A-6, A-7 | 0 | 0 | 100 | 100 |96-100|80-99 |37-60 |15-34 | | loam, silty | | | | | | | | | | | | clay, clay | | | | | | | | | | | | loam | | | | | | | | | | | 51-59 |Silty clay |CH, CL |A-6, A-7 | 0 | 0 | 100 | 100 |96-100|80-99 |37-60 |15-34 | | loam, silty | | | | | | | | | | | | clay, clay | | | | | | | | | | | | loam | | | | | | | | | | | 59-80 |Bedrock | | | --- | --- | --- | --- | --- | --- | --- | --- | | | | | | | | | | | | PieB: | | | | | | | | | | | | Piedmont--------| 0-8 |Silty clay loam|CL |A-6, A-7 | 0 | 0 | 100 | 100 |96-100|75-98 |31-43 |10-20 | 8-17 |Silty clay, |CH, CL |A-6, A-7 | 0 | 0 | 100 | 100 |96-100|80-99 |37-60 |15-34 | | clay, silty | | | | | | | | | | | | clay loam | | | | | | | | | | | 17-27 |Silty clay, |CH, CL |A-6, A-7 | 0 | 0 | 100 | 100 |96-100|80-99 |37-60 |15-34 | | clay, silty | | | | | | | | | | | | clay loam | | | | | | | | | | | 27-32 |Silty clay |CL, GC, SC, |A-6, A-7 | 0 | 0 |50-100|50-100|45-100|45-99 |37-60 |15-34 | | loam, silty | CH | | | | | | | | | | | clay, clay, | | | | | | | | | | | | gravelly silty| | | | | | | | | | | | clay | | | | | | | | | | | 32-40 |Bedrock | | | --- | --- | --- | --- | --- | --- | --- | --- | | | | | | | | | | | | PieC2: | | | | | | | | | | | | Piedmont--------| 0-7 |Silty clay loam|CL |A-6, A-7 | 0 | 0 | 100 | 100 |96-100|75-98 |31-43 |10-20 | 7-14 |Silty clay |CH, CL |A-6, A-7 | 0 | 0 | 100 | 100 |96-100|80-99 |37-60 |15-34 | | loam, silty | | | | | | | | | | | | clay, clay | | | | | | | | | | | 14-27 |Clay, silty |CH, CL, GC, |A-6, A-7 | 0 | 0 |50-100|50-100|45-100|45-99 |37-60 |15-34 | | clay, gravelly| SC | | | | | | | | | | | silty clay | | | | | | | | | | | 27-40 |Bedrock | | | --- | --- | --- | --- | --- | --- | --- | --- | | | | | | | | | | | |
Logan County, Oklahoma 401 Engineering Index Properties—Continued _____________________________________________________________________________________________________________________________ | | | Classification | Fragments | Percentage passing | | Map symbol | Depth | USDA texture | | | sieve number-- |Liquid| Plas- _____________________________________________________________________ and soil name | | | | | >10 | 3-10 | | | | |limit |ticity | | | Unified | AASHTO |inches|inches| 4 | 10 | 40 | 200 | |index _____________________________________________________________________________________________________________________________ | In | | | | Pct | Pct | | | | | Pct | __ ___ ___ ___ | | | | | | | | | | | | PIT. | | | | | | | | | | | | Pits | | | | | | | | | | | | | | | | | | | | | | | | PukA: | | | | | | | | | | | | Pulaski---------| 0-8 |Fine sandy loam|CL-ML, SM, |A-4 | 0 | 0 | 100 |98-100|94-100|36-60 |14-26 |NP-7 | | | ML, SC-SM | | | | | | | | | | 8-28 |Fine sandy |CL-ML, ML, |A-4 | 0 | 0 | 100 |98-100|94-100|36-85 |14-29 |NP-7 | | loam, loam | SC-SM, SM | | | | | | | | | | 28-80 |Stratified |CL-ML, ML, |A-2, A-4 | 0 | 0 | 100 |98-100|94-100|15-85 | 0-29 |NP-7 | | loamy fine | SC-SM, SM | | | | | | | | | | | sand to loam | | | | | | | | | | | | | | | | | | | | | | PulA: | | | | | | | | | | | | Pulaski---------| 0-10 |Fine sandy loam|ML, SC-SM, |A-4 | 0 | 0 | 100 |98-100|94-100|36-60 |14-26 |NP-7 | | | SM, CL-ML | | | | | | | | | | 10-14 |Fine sandy loam|CL-ML, ML, |A-4 | 0 | 0 | 100 |98-100|94-100|36-60 |14-26 |NP-7 | | | SC-SM, SM | | | | | | | | | | 14-36 |Fine sandy |SM, SC-SM, |A-4 | 0 | 0 | 100 |98-100|94-100|36-85 |14-29 |NP-7 | | loam, loam | ML, CL-ML | | | | | | | | | | 36-80 |Stratified |SC-SM, ML, |A-2, A-4 | 0 | 0 | 100 |98-100|94-100|15-85 | 0-29 |NP-7 | | loamy fine | CL-ML, SM | | | | | | | | | | | sand to loam | | | | | | | | | | | | | | | | | | | | | | RenB: | | | | | | | | | | | | Renfrow---------| 0-11 |Silt loam |CL |A-4, A-6 | 0 | 0 | 100 | 100 |96-100|65-97 |30-37 | 8-14 | 11-19 |Silty clay |CL |A-6, A-7 | 0 | 0 | 100 | 100 |96-100|80-98 |30-50 |15-26 | | loam, clay | | | | | | | | | | | | loam, silt | | | | | | | | | | | | loam | | | | | | | | | | | 19-33 |Silty clay, |CH, CL |A-6, A-7 | 0 | 0 | 100 | 100 |96-100|80-99 |37-60 |15-34 | | clay, silty | | | | | | | | | | | | clay loam | | | | | | | | | | | 33-66 |Silty clay, |CH, CL |A-6, A-7 | 0 | 0 | 100 | 100 |96-100|80-99 |37-60 |15-34 | | clay, silty | | | | | | | | | | | | clay loam | | | | | | | | | | | 66-72 |Silty clay, |CL, CH |A-6, A-7 | 0 | 0 | 100 | 100 |96-100|80-99 |37-60 |15-34 | | clay, silty | | | | | | | | | | | | clay loam | | | | | | | | | | | 72-80 |Bedrock | | | --- | --- | --- | --- | --- | --- | --- | --- | | | | | | | | | | | |
402 Soil Survey Engineering Index Properties—Continued _____________________________________________________________________________________________________________________________ | | | Classification | Fragments | Percentage passing | | Map symbol | Depth | USDA texture | | | sieve number-- |Liquid| Plas- _____________________________________________________________________ and soil name | | | | | >10 | 3-10 | | | | |limit |ticity | | | Unified | AASHTO |inches|inches| 4 | 10 | 40 | 200 | |index _____________________________________________________________________________________________________________________________ | In | | | | Pct | Pct | | | | | Pct | __ ___ ___ ___ | | | | | | | | | | | | RenC: | | | | | | | | | | | | Renfrow---------| 0-10 |Silt loam |CL |A-4, A-6 | 0 | 0 | 100 | 100 |96-100|65-97 |30-37 | 8-14 | 10-16 |Silt loam, clay|CL |A-6, A-7 | 0 | 0 | 100 | 100 |96-100|80-98 |30-50 |15-26 | | loam, silty | | | | | | | | | | | | clay loam | | | | | | | | | | | 16-27 |Silty clay |CH, CL |A-6, A-7 | 0 | 0 | 100 | 100 |96-100|80-99 |37-60 |15-34 | | loam, silty | | | | | | | | | | | | clay, clay | | | | | | | | | | | 27-38 |Silty clay |CH, CL |A-6, A-7 | 0 | 0 | 100 | 100 |96-100|80-99 |37-60 |15-34 | | loam, silty | | | | | | | | | | | | clay, clay | | | | | | | | | | | 38-67 |Silty clay, |CH, CL |A-6, A-7 | 0 | 0 | 100 | 100 |96-100|80-99 |37-60 |15-34 | | clay, silty | | | | | | | | | | | | clay loam | | | | | | | | | | | 67-80 |Bedrock | | | --- | --- | --- | --- | --- | --- | --- | --- | | | | | | | | | | | | RewC2: | | | | | | | | | | | | Renfrow---------| 0-10 |Silty clay loam|CL |A-6, A-7 | 0 | 0 | 100 | 100 |96-100|80-98 |33-43 |12-20 | 10-24 |Silty clay, |CH, CL |A-6, A-7 | 0 | 0 | 100 | 100 |96-100|80-99 |37-60 |15-34 | | clay, silty | | | | | | | | | | | | clay loam | | | | | | | | | | | 24-37 |Silty clay, |CH, CL |A-6, A-7 | 0 | 0 | 100 | 100 |96-100|80-99 |37-60 |15-34 | | clay, silty | | | | | | | | | | | | clay loam | | | | | | | | | | | 37-54 |Silty clay, |CH, CL |A-6, A-7 | 0 | 0 | 100 | 100 |96-100|80-99 |37-60 |15-34 | | clay, silty | | | | | | | | | | | | clay loam | | | | | | | | | | | 54-63 |Silty clay, |CH, CL |A-6, A-7 | 0 | 0 | 100 | 100 |96-100|80-99 |37-60 |15-34 | | clay, silty | | | | | | | | | | | | clay loam | | | | | | | | | | | 63-80 |Bedrock | | | --- | --- | --- | --- | --- | --- | --- | --- | | | | | | | | | | | | RinB: | | | | | | | | | | | | Renthin---------| 0-7 |Silt loam |CL |A-4, A-6 | 0 | 0 | 100 | 100 |96-100|65-97 |30-37 | 8-13 | 7-12 |Silty clay |CL |A-6, A-7 | 0 | 0 | 100 | 100 |96-100|75-98 |31-50 |13-26 | | loam, clay | | | | | | | | | | | | loam | | | | | | | | | | | 12-21 |Silty clay |CH, CL |A-6, A-7 | 0 | 0 | 100 | 100 |96-100|80-99 |37-60 |15-34 | | loam, silty | | | | | | | | | | | | clay, clay | | | | | | | | | | | 21-32 |Silty clay, |SC, GC, CL, |A-6, A-7 | 0 | 0 |50-100|50-100|45-100|40-99 |37-60 |15-34 | | clay, gravelly| CH | | | | | | | | | | | silty clay | | | | | | | | | | | 32-54 |Silty clay, |CH, CL, GC, |A-6, A-7 | 0 | 0 |50-100|50-100|45-100|40-99 |37-60 |15-34 | | clay, gravelly| SC | | | | | | | | | | | silty clay | | | | | | | | | | | 54-60 |Bedrock | | | --- | --- | --- | --- | --- | --- | --- | ---
Logan County, Oklahoma 403 Engineering Index Properties—Continued _____________________________________________________________________________________________________________________________ | | | Classification | Fragments | Percentage passing | | Map symbol | Depth | USDA texture | | | sieve number-- |Liquid| Plas- _____________________________________________________________________ and soil name | | | | | >10 | 3-10 | | | | |limit |ticity | | | Unified | AASHTO |inches|inches| 4 | 10 | 40 | 200 | |index _____________________________________________________________________________________________________________________________ | In | | | | Pct | Pct | | | | | Pct | __ ___ ___ ___ | | | | | | | | | | | | RnnC2: | | | | | | | | | | | | Renthin---------| 0-10 |Silt loam |CL |A-4, A-6 | 0 | 0 | 100 | 100 |96-100|65-97 |30-37 | 8-13 | 10-20 |Silty clay |CL, CH |A-6, A-7 | 0 | 0 | 100 | 100 |96-100|80-99 |37-60 |15-34 | | loam, silty | | | | | | | | | | | | clay, clay | | | | | | | | | | | 20-33 |Silty clay, |CL, CH |A-6, A-7 | 0 | 0 | 100 | 100 |96-100|80-99 |37-60 |15-34 | | clay, silty | | | | | | | | | | | | clay loam | | | | | | | | | | | 33-45 |Silty clay, |CH, CL |A-6, A-7 | 0 | 0 | 100 | 100 |96-100|80-99 |37-60 |15-34 | | clay, silty | | | | | | | | | | | | clay loam | | | | | | | | | | | 45-50 |Gravelly silty |CH, CL, GC, |A-6, A-7 | 0 | 0 |50-100|50-100|45-100|40-99 |37-60 |15-34 | | clay, clay, | SC | | | | | | | | | | | silty clay | | | | | | | | | | | 50-60 |Bedrock | | | --- | --- | --- | --- | --- | --- | --- | --- | | | | | | | | | | | | SDGD4: | | | | | | | | | | | | Stephenville----| 0-5 |Fine sandy loam|CL-ML, ML, |A-2, A-4 | 0 | 0-15 |83-100|83-100|80-100|11-60 |14-26 |NP-7 | | | SC-SM, SM | | | | | | | | | | 5-12 |Sandy clay |SC-SM, SC, |A-6, A-4 | 0 | 0 | 100 |98-100|90-100|36-65 |20-37 | 7-16 | | loam, fine | CL-ML, CL | | | | | | | | | | | sandy loam | | | | | | | | | | | 12-22 |Sandy clay |SC-SM, SC, |A-4, A-6 | 0 | 0 | 100 |98-100|90-100|36-65 |20-37 | 7-16 | | loam, fine | CL-ML, CL | | | | | | | | | | | sandy loam | | | | | | | | | | | 22-36 |Bedrock | | | --- | --- | --- | --- | --- | --- | --- | --- | | | | | | | | | | | | Darsil----------| 0-4 |Loamy fine sand|SM |A-2 | 0 | 0 |98-100|98-100|85-100|15-35 | 0-14 | NP | 4-12 |Loamy fine |SP-SM, SM |A-2, A-3 | 0 | 0 |75-100|70-100|50-100| 3-35 | 0-14 | NP | | sand, fine | | | | | | | | | | | | sand | | | | | | | | | | | 12-24 |Bedrock | | | --- | --- | --- | --- | --- | --- | --- | --- | | | | | | | | | | | | Gullied land. | | | | | | | | | | | | | | | | | | | | | | | | SDND: | | | | | | | | | | | | Stephenville----| 0-7 |Fine sandy loam|CL-ML, ML, |A-2, A-4 | 0 | 0-15 |83-100|83-100|80-100|11-60 |14-26 |NP-7 | | | SC-SM, SM | | | | | | | | | | 7-13 |Loamy fine |CL-ML, ML, |A-2, A-4 | 0 | 0-15 |85-100|85-100|76-100|12-60 | 0-26 |NP-7 | | sand, fine | SC-SM, SM | | | | | | | | | | | sandy loam | | | | | | | | | | | 13-28 |Sandy clay |CL-ML, CL, |A-4, A-6 | 0 | 0 | 100 |98-100|90-100|36-65 |20-37 | 7-16 | | loam, fine | SC, SC-SM | | | | | | | | | | | sandy loam | | | | | | | | | | | 28-36 |Bedrock | | | --- | --- | --- | --- | --- | --- | --- | --- | | | | | | | | | | | |
404 Soil Survey Engineering Index Properties—Continued _____________________________________________________________________________________________________________________________ | | | Classification | Fragments | Percentage passing | | Map symbol | Depth | USDA texture | | | sieve number-- |Liquid| Plas- _____________________________________________________________________ and soil name | | | | | >10 | 3-10 | | | | |limit |ticity | | | Unified | AASHTO |inches|inches| 4 | 10 | 40 | 200 | |index _____________________________________________________________________________________________________________________________ | In | | | | Pct | Pct | | | | | Pct | __ ___ ___ ___ | | | | | | | | | | | | SDND: | | | | | | | | | | | | Darsil----------| 0-5 |Fine sandy loam|SM |A-2 | 0 | 0 |98-100|98-100|85-100|15-35 | 0-14 | NP | 5-18 |Loamy fine |SM, SP-SM |A-2, A-3 | 0 | 0 |75-100|70-100|50-100| 3-35 | 0-14 | NP | | sand, fine | | | | | | | | | | | | sand | | | | | | | | | | | 18-20 |Bedrock | | | --- | --- | --- | --- | --- | --- | --- | --- | | | | | | | | | | | | Newalla---------| 0-4 |Fine sandy loam|CL-ML, ML, |A-4 | 0 | 0 | 100 |98-100|94-100|36-60 |14-26 |NP-7 | | | SC-SM, SM | | | | | | | | | | 4-8 |Fine sandy loam|ML, SM, |A-4 | 0 | 0 | 100 |98-100|94-100|36-60 |14-26 |NP-7 | | | SC-SM, CL-ML| | | | | | | | | | 8-13 |Sandy clay |CL, SC |A-4, A-6 | 0 | 0 | 100 | 100 |96-100|36-85 |25-40 | 7-18 | | loam, clay | | | | | | | | | | | | loam | | | | | | | | | | | 13-27 |Clay, silty |CH, CL |A-7 | 0 | 0 | 100 | 100 |96-100|80-99 |41-60 |18-34 | | clay | | | | | | | | | | | 27-48 |Clay, very |CH, CL, SC, |A-2, A-6, A-7| 0 | 0 |40-100|35-100|30-100|15-99 |35-60 |14-34 | | gravelly silty| GC | | | | | | | | | | | clay, silty | | | | | | | | | | | | clay, sandy | | | | | | | | | | | | clay | | | | | | | | | | | 48-80 |Bedrock | | | --- | --- | --- | --- | --- | --- | --- | --- | | | | | | | | | | | | SDND2: | | | | | | | | | | | | Stephenville----| 0-7 |Fine sandy loam|SM, CL-ML, |A-2, A-4 | 0 | 0-15 |83-100|83-100|80-100|11-60 |14-26 |NP-7 | | | ML, SC-SM | | | | | | | | | | 7-12 |Sandy clay |CL, CL-ML, |A-4, A-6 | 0 | 0 | 100 |98-100|90-100|36-65 |20-37 | 7-16 | | loam, fine | SC, SC-SM | | | | | | | | | | | sandy loam | | | | | | | | | | | 12-25 |Sandy clay |CL, CL-ML, |A-4, A-6 | 0 | 0 | 100 |98-100|90-100|36-65 |20-37 | 7-16 | | loam, fine | SC, SC-SM | | | | | | | | | | | sandy loam | | | | | | | | | | | 25-30 |Sandy clay |CL-ML, SC-SM,|A-4, A-6 | 0 | 0 | 100 |98-100|90-100|36-65 |20-37 | 7-16 | | loam, fine | SC, CL | | | | | | | | | | | sandy loam | | | | | | | | | | | 30-36 |Bedrock | | | --- | --- | --- | --- | --- | --- | --- | --- | | | | | | | | | | | | Darsil----------| 0-6 |Fine sandy loam|SM |A-2 | 0 | 0 |98-100|98-100|85-100|15-35 | 0-14 | NP | 6-11 |Loamy fine |SM, SP-SM |A-2, A-3 | 0 | 0 |75-100|70-100|50-100| 3-35 | 0-14 | NP | | sand, fine | | | | | | | | | | | | sand | | | | | | | | | | | 11-24 |Bedrock | | | --- | --- | --- | --- | --- | --- | --- | --- | | | | | | | | | | | |
Logan County, Oklahoma 405 Engineering Index Properties—Continued _____________________________________________________________________________________________________________________________ | | | Classification | Fragments | Percentage passing | | Map symbol | Depth | USDA texture | | | sieve number-- |Liquid| Plas- _____________________________________________________________________ and soil name | | | | | >10 | 3-10 | | | | |limit |ticity | | | Unified | AASHTO |inches|inches| 4 | 10 | 40 | 200 | |index _____________________________________________________________________________________________________________________________ | In | | | | Pct | Pct | | | | | Pct | __ ___ ___ ___ | | | | | | | | | | | | SDND2: | | | | | | | | | | | | Newalla---------| 0-5 |Fine sandy loam|CL-ML, SC-SM,|A-4 | 0 | 0 | 100 |98-100|94-100|36-60 |14-26 |NP-7 | | | SM, ML | | | | | | | | | | 5-12 |Sandy clay |SC, CL |A-4, A-6 | 0 | 0 | 100 | 100 |96-100|36-85 |25-40 | 7-18 | | loam, clay | | | | | | | | | | | | loam | | | | | | | | | | | 12-26 |Clay, silty |CH, CL |A-7 | 0 | 0 | 100 | 100 |96-100|80-99 |41-60 |18-34 | | clay | | | | | | | | | | | 26-40 |Clay, silty |CL, CH |A-7 | 0 | 0 | 100 | 100 |96-100|80-99 |41-60 |18-34 | | clay | | | | | | | | | | | 40-80 |Bedrock | | | --- | --- | --- | --- | --- | --- | --- | --- | | | | | | | | | | | | SlaB: | | | | | | | | | | | | Slaughterville--| 0-11 |Fine sandy loam|CL-ML, SM, |A-4 | 0 | 0 | 100 |98-100|94-100|36-60 |15-26 |NP-7 | | | SC-SM, ML | | | | | | | | | | 11-20 |Fine sandy loam|CL-ML, ML, |A-4 | 0 | 0 | 100 |98-100|94-100|36-60 |15-26 |NP-7 | | | SC-SM, SM | | | | | | | | | | 20-34 |Fine sandy loam|CL-ML, ML, |A-4 | 0 | 0 | 100 |98-100|94-100|36-60 |15-26 |NP-7 | | | SC-SM, SM | | | | | | | | | | 34-42 |Fine sandy loam|CL-ML, SM, |A-4 | 0 | 0 | 100 |98-100|94-100|36-60 |15-26 |NP-7 | | | SC-SM, ML | | | | | | | | | | 42-53 |Loamy fine |SC-SM, ML, |A-2, A-4 | 0 | 0 | 100 |98-100|90-100|15-60 |15-26 |NP-7 | | sand, fine | SM, CL-ML | | | | | | | | | | | sandy loam | | | | | | | | | | | 53-80 |Fine sandy loam|SM, SC-SM, |A-4 | 0 | 0 | 100 |98-100|94-100|36-60 |15-26 |NP-7 | | | ML, CL-ML | | | | | | | | | | | | | | | | | | | | | SlaD: | | | | | | | | | | | | Slaughterville--| 0-8 |Fine sandy loam|ML, CL-ML, |A-4 | 0 | 0 | 100 |98-100|94-100|36-60 |15-26 |NP-7 | | | SC-SM, SM | | | | | | | | | | 8-16 |Fine sandy loam|SM, SC-SM, |A-4 | 0 | 0 | 100 |98-100|94-100|36-60 |15-26 |NP-7 | | | ML, CL-ML | | | | | | | | | | 16-34 |Fine sandy loam|CL-ML, ML, |A-4 | 0 | 0 | 100 |98-100|94-100|36-60 |15-26 |NP-7 | | | SC-SM, SM | | | | | | | | | | 34-50 |Fine sandy loam|SM, SC-SM, |A-4 | 0 | 0 | 100 |98-100|94-100|36-60 |15-26 |NP-7 | | | ML, CL-ML | | | | | | | | | | 50-80 |Loamy fine |CL-ML, ML, |A-4 | 0 | 0 | 100 |98-100|90-100|15-60 |15-26 |NP-7 | | sand, fine | SC-SM, SM | | | | | | | | | | | sandy loam | | | | | | | | | | | | | | | | | | | | | |
406 Soil Survey Engineering Index Properties—Continued _____________________________________________________________________________________________________________________________ | | | Classification | Fragments | Percentage passing | | Map symbol | Depth | USDA texture | | | sieve number-- |Liquid| Plas- _____________________________________________________________________ and soil name | | | | | >10 | 3-10 | | | | |limit |ticity | | | Unified | AASHTO |inches|inches| 4 | 10 | 40 | 200 | |index _____________________________________________________________________________________________________________________________ | In | | | | Pct | Pct | | | | | Pct | __ ___ ___ ___ | | | | | | | | | | | | SlaF: | | | | | | | | | | | | Slaughterville--| 0-8 |Fine sandy loam|CL-ML, ML, |A-4 | 0 | 0 | 100 |98-100|94-100|36-60 |15-26 |NP-7 | | | SC-SM, SM | | | | | | | | | | 8-16 |Fine sandy loam|CL-ML, ML, |A-4 | 0 | 0 | 100 |98-100|94-100|36-60 |15-26 |NP-7 | | | SM, SC-SM | | | | | | | | | | 16-34 |Fine sandy loam|SC-SM, SM, |A-4 | 0 | 0 | 100 |98-100|94-100|36-60 |15-26 |NP-7 | | | ML, CL-ML | | | | | | | | | | 34-48 |Fine sandy loam|SM, SC-SM, |A-4 | 0 | 0 | 100 |98-100|94-100|36-60 |15-26 |NP-7 | | | CL-ML, ML | | | | | | | | | | 48-63 |Loamy fine |CL-ML, ML, |A-4 | 0 | 0 | 100 |98-100|90-100|15-60 |15-26 |NP-7 | | sand, fine | SC-SM, SM | | | | | | | | | | | sandy loam | | | | | | | | | | | 63-80 |Loamy fine |CL-ML, ML, |A-4 | 0 | 0 | 100 |98-100|90-100|15-60 |15-26 |NP-7 | | sand, fine | SC-SM, SM | | | | | | | | | | | sandy loam | | | | | | | | | | | | | | | | | | | | | | StDC: | | | | | | | | | | | | Stephenville----| 0-6 |Fine sandy loam|CL-ML, ML, |A-2, A-4 | 0 | 0-15 |83-100|83-100|80-100|11-60 |14-26 |NP-7 | | | SC-SM, SM | | | | | | | | | | 6-14 |Fine sandy |ML, SC-SM, |A-2, A-4 | 0 | 0-15 |85-100|85-100|76-100|12-60 | 0-26 |NP-7 | | loam, loamy | SM, CL-ML | | | | | | | | | | | fine sand | | | | | | | | | | | 14-23 |Sandy clay |CL, CL-ML, |A-4, A-6 | 0 | 0 | 100 |98-100|90-100|36-65 |20-37 | 7-16 | | loam, fine | SC, SC-SM | | | | | | | | | | | sandy loam | | | | | | | | | | | 23-30 |Fine sandy |SC-SM, SC, |A-4, A-6 | 0 | 0 | 100 |98-100|90-100|36-65 |20-37 | 7-16 | | loam, sandy | CL-ML, CL | | | | | | | | | | | clay loam | | | | | | | | | | | 30-40 |Bedrock | | | --- | --- | --- | --- | --- | --- | --- | --- | | | | | | | | | | | | Darsil----------| 0-4 |Fine sandy loam|SM |A-2 | 0 | 0 |98-100|98-100|85-100|15-35 | 0-14 | NP | 4-15 |Loamy fine |SP-SM, SM |A-2, A-3 | 0 | 0 |75-100|70-100|50-100| 3-35 | 0-14 | NP | | sand, fine | | | | | | | | | | | | sand | | | | | | | | | | | 15-20 |Bedrock | | | --- | --- | --- | --- | --- | --- | --- | --- | | | | | | | | | | | |
Logan County, Oklahoma 407 Engineering Index Properties—Continued _____________________________________________________________________________________________________________________________ | | | Classification | Fragments | Percentage passing | | Map symbol | Depth | USDA texture | | | sieve number-- |Liquid| Plas- _____________________________________________________________________ and soil name | | | | | >10 | 3-10 | | | | |limit |ticity | | | Unified | AASHTO |inches|inches| 4 | 10 | 40 | 200 | |index _____________________________________________________________________________________________________________________________ | In | | | | Pct | Pct | | | | | Pct | __ ___ ___ ___ | | | | | | | | | | | | StDC2: | | | | | | | | | | | | Stephenville----| 0-8 |Fine sandy loam|SM, SC-SM, |A-2, A-4 | 0 | 0-15 |83-100|83-100|80-100|11-60 |14-26 |NP-7 | | | ML, CL-ML | | | | | | | | | | 8-21 |Fine sandy |CL, SC-SM, |A-4, A-6 | 0 | 0 | 100 |98-100|90-100|36-65 |20-37 | 7-16 | | loam, sandy | SC, CL-ML | | | | | | | | | | | clay loam | | | | | | | | | | | 21-32 |Fine sandy |CL, CL-ML, |A-4, A-6 | 0 | 0 | 100 |98-100|90-100|36-65 |20-37 | 7-16 | | loam, sandy | SC, SC-SM | | | | | | | | | | | clay loam | | | | | | | | | | | 32-38 |Fine sandy |CL-ML, SC-SM,|A-4, A-6 | 0 | 0 | 100 |98-100|90-100|36-65 |20-37 | 7-16 | | loam, sandy | SC, CL | | | | | | | | | | | clay loam | | | | | | | | | | | 38-44 |Bedrock | | | --- | --- | --- | --- | --- | --- | --- | --- | | | | | | | | | | | | Darsil----------| 0-8 |Fine sandy loam|SM |A-2 | 0 | 0 |98-100|98-100|85-100|15-35 | 0-14 | NP | 8-16 |Loamy fine |SM, SP-SM |A-2, A-3 | 0 | 0 |75-100|70-100|50-100| 3-35 | 0-14 | NP | | sand, fine | | | | | | | | | | | | sand | | | | | | | | | | | 16-30 |Bedrock | | | --- | --- | --- | --- | --- | --- | --- | --- | | | | | | | | | | | | StDE: | | | | | | | | | | | | Stephenville----| 0-7 |Fine sandy loam|SM, SC-SM, |A-2, A-4 | 0 | 0-15 |83-100|83-100|80-100|11-60 |14-26 |NP-7 | | | ML, CL-ML | | | | | | | | | | 7-14 |Fine sandy |ML, SM, |A-2, A-4 | 0 | 0-15 |85-100|85-100|76-100|12-60 | 0-26 |NP-7 | | loam, loamy | SC-SM, CL-ML| | | | | | | | | | | fine sand | | | | | | | | | | | 14-27 |Sandy clay |CL-ML, CL, |A-4, A-6 | 0 | 0 | 100 |98-100|90-100|36-65 |20-37 | 7-16 | | loam, fine | SC-SM, SC | | | | | | | | | | | sandy loam | | | | | | | | | | | 27-40 |Bedrock | | | --- | --- | --- | --- | --- | --- | --- | --- | | | | | | | | | | | | Darsil----------| 0-7 |Loamy fine sand|SM |A-2 | 0 | 0 |98-100|98-100|85-100|15-35 | 0-14 | NP | 7-16 |Loamy fine |SP-SM, SM |A-2, A-3 | 0 | 0 |75-100|70-100|50-100| 3-35 | 0-14 | NP | | sand, fine | | | | | | | | | | | | sand | | | | | | | | | | | 16-20 |Bedrock | | | --- | --- | --- | --- | --- | --- | --- | --- | | | | | | | | | | | |
408 Soil Survey Engineering Index Properties—Continued _____________________________________________________________________________________________________________________________ | | | Classification | Fragments | Percentage passing | | Map symbol | Depth | USDA texture | | | sieve number-- |Liquid| Plas- _____________________________________________________________________ and soil name | | | | | >10 | 3-10 | | | | |limit |ticity | | | Unified | AASHTO |inches|inches| 4 | 10 | 40 | 200 | |index _____________________________________________________________________________________________________________________________ | In | | | | Pct | Pct | | | | | Pct | __ ___ ___ ___ | | | | | | | | | | | | SteB: | | | | | | | | | | | | Stephenville----| 0-6 |Fine sandy loam|CL-ML, ML, |A-2, A-4 | 0 | 0-15 |83-100|83-100|80-100|11-60 |14-26 |NP-7 | | | SC-SM, SM | | | | | | | | | | 6-12 |Fine sandy |SM, SC-SM, |A-2, A-4 | 0 | 0-15 |85-100|85-100|76-100|12-60 | 0-26 |NP-7 | | loam, loamy | CL-ML, ML | | | | | | | | | | | fine sand | | | | | | | | | | | 12-22 |Sandy clay |SC, SC-SM, |A-4, A-6 | 0 | 0 | 100 |98-100|90-100|36-65 |20-37 | 7-16 | | loam, fine | CL, CL-ML | | | | | | | | | | | sandy loam | | | | | | | | | | | 22-35 |Sandy clay |CL, CL-ML, |A-4, A-6 | 0 | 0 | 100 |98-100|90-100|36-65 |20-37 | 7-16 | | loam, fine | SC, SC-SM | | | | | | | | | | | sandy loam | | | | | | | | | | | 35-40 |Bedrock | | | --- | --- | --- | --- | --- | --- | --- | --- | | | | | | | | | | | | SteC2: | | | | | | | | | | | | Stephenville----| 0-8 |Fine sandy loam|CL-ML, ML, |A-2, A-4 | 0 | 0-15 |83-100|83-100|80-100|11-60 |14-26 |NP-7 | | | SC-SM, SM | | | | | | | | | | 8-29 |Sandy clay |CL, SC-SM, |A-4, A-6 | 0 | 0 | 100 |98-100|90-100|36-65 |20-37 | 7-16 | | loam, fine | SC, CL-ML | | | | | | | | | | | sandy loam | | | | | | | | | | | 29-40 |Bedrock | | | --- | --- | --- | --- | --- | --- | --- | --- | | | | | | | | | | | | SUND: | | | | | | | | | | | | Stephenville----| 0-9 |Fine sandy loam|CL-ML, ML, |A-2, A-4 | 0 | 0-15 |83-100|83-100|80-100|11-60 |14-26 |NP-7 | | | SC-SM, SM | | | | | | | | | | 9-28 |Sandy clay |SC, CL, |A-4, A-6 | 0 | 0 | 100 |98-100|90-100|36-65 |20-37 | 7-16 | | loam, fine | CL-ML, SC-SM| | | | | | | | | | | sandy loam | | | | | | | | | | | 28-40 |Bedrock | | | --- | --- | --- | --- | --- | --- | --- | --- | | | | | | | | | | | | Urban land. | | | | | | | | | | | | | | | | | | | | | | | | Newalla---------| 0-6 |Loam |CL, CL-ML, SC|A-4, A-6 | 0 | 0 | 100 | 100 |96-100|36-85 |25-37 | 7-16 | 6-11 |Sandy clay |SC, CL |A-6, A-4 | 0 | 0 | 100 | 100 |96-100|36-85 |25-40 | 7-18 | | loam, clay | | | | | | | | | | | | loam | | | | | | | | | | | 11-34 |Clay, silty |CL, CH |A-7 | 0 | 0 | 100 | 100 |96-100|80-99 |41-60 |18-34 | | clay | | | | | | | | | | | 34-58 |Clay, silty |CH, CL |A-7 | 0 | 0 | 100 | 100 |96-100|80-99 |41-60 |18-34 | | clay | | | | | | | | | | | 58-72 |Bedrock | | | --- | --- | --- | --- | --- | --- | --- | --- | | | | | | | | | | | |
Logan County, Oklahoma 409 Engineering Index Properties—Continued _____________________________________________________________________________________________________________________________ | | | Classification | Fragments | Percentage passing | | Map symbol | Depth | USDA texture | | | sieve number-- |Liquid| Plas- _____________________________________________________________________ and soil name | | | | | >10 | 3-10 | | | | |limit |ticity | | | Unified | AASHTO |inches|inches| 4 | 10 | 40 | 200 | |index _____________________________________________________________________________________________________________________________ | In | | | | Pct | Pct | | | | | Pct | __ ___ ___ ___ | | | | | | | | | | | | TelB: | | | | | | | | | | | | Teller----------| 0-9 |Loam |CL, CL-ML |A-4, A-6 | 0 | 0 | 100 | 100 |96-100|65-97 |22-35 | 7-13 | 9-15 |Loam, fine |CL, ML, SC, |A-4, A-6 | 0 | 0 | 100 |98-100|94-100|36-85 |14-35 |NP-13 | | sandy loam | SM | | | | | | | | | | 15-31 |Clay loam, |SC, CL |A-4, A-6 | 0 | 0 | 100 | 100 |90-100|36-85 |25-40 | 7-18 | | sandy clay | | | | | | | | | | | | loam | | | | | | | | | | | 31-44 |Sandy clay |SC, CL |A-4, A-6 | 0 | 0 | 100 | 100 |90-100|36-85 |25-40 | 7-18 | | loam, clay | | | | | | | | | | | | loam | | | | | | | | | | | 44-55 |Fine sandy |ML, SC, SM, |A-4, A-6 | 0 | 0 | 100 |98-100|94-100|36-85 |14-35 |NP-13 | | loam, very | CL | | | | | | | | | | | fine sandy | | | | | | | | | | | | loam, loam | | | | | | | | | | | 55-80 |Fine sandy |SM, ML, SC, |A-4, A-6 | 0 | 0 | 100 |98-100|94-100|36-85 |14-35 |NP-13 | | loam, very | CL | | | | | | | | | | | fine sandy | | | | | | | | | | | | loam, loam | | | | | | | | | | | | | | | | | | | | | | TelC2: | | | | | | | | | | | | Teller----------| 0-4 |Loam |CL, CL-ML |A-4, A-6 | 0 | 0 | 100 | 100 |96-100|65-97 |22-35 | 7-13 | 4-25 |Loam, fine |CL, ML, SC, |A-4, A-6 | 0 | 0 | 100 |98-100|94-100|36-85 |14-35 |NP-13 | | sandy loam | SM | | | | | | | | | | 25-44 |Clay loam, |SC, CL |A-4, A-6 | 0 | 0 | 100 | 100 |90-100|36-85 |25-40 | 7-18 | | sandy clay | | | | | | | | | | | | loam | | | | | | | | | | | 44-59 |Sandy clay |CL, SC |A-4, A-6 | 0 | 0 | 100 | 100 |90-100|36-85 |25-40 | 7-18 | | loam, clay | | | | | | | | | | | | loam | | | | | | | | | | | 59-80 |Sandy clay |SC, CL |A-4, A-6 | 0 | 0 | 100 | 100 |90-100|36-85 |25-40 | 7-18 | | loam, clay | | | | | | | | | | | | loam | | | | | | | | | | | | | | | | | | | | | | TriA: | | | | | | | | | | | | Tribbey---------| 0-6 |Fine sandy loam|SM, ML, |A-4 | 0 | 0 | 100 |98-100|94-100|36-60 |14-26 |NP-7 | | | CL-ML, SC-SM| | | | | | | | | | 6-45 |Fine sandy |CL-ML, ML, |A-4 | 0 | 0 | 100 |98-100|90-100|15-85 | 0-29 |NP-7 | | loam, loam, | SC-SM, SM | | | | | | | | | | | loamy very | | | | | | | | | | | | fine sand | | | | | | | | | | | 45-80 |Stratified |CL-ML, ML, |A-2, A-4 | 0 | 0 | 100 |98-100|90-100|15-85 | 0-29 |NP-7 | | loamy fine | SC-SM, SM | | | | | | | | | | | sand to loam | | | | | | | | | | | | | | | | | | | | | | URB. | | | | | | | | | | | | Urban land | | | | | | | | | | | | | | | | | | | | | | | |
410 Soil Survey Engineering Index Properties—Continued _____________________________________________________________________________________________________________________________ | | | Classification | Fragments | Percentage passing | | Map symbol | Depth | USDA texture | | | sieve number-- |Liquid| Plas- _____________________________________________________________________ and soil name | | | | | >10 | 3-10 | | | | |limit |ticity | | | Unified | AASHTO |inches|inches| 4 | 10 | 40 | 200 | |index _____________________________________________________________________________________________________________________________ | In | | | | Pct | Pct | | | | | Pct | __ ___ ___ ___ | | | | | | | | | | | | W. | | | | | | | | | | | | Water | | | | | | | | | | | | | | | | | | | | | | | | YaaA: | | | | | | | | | | | | Yahola----------| 0-7 |Loam |CL, CL-ML, ML|A-4 | 0 | 0 | 100 | 100 |94-100|51-85 |14-29 |NP-10 | 7-14 |Loam, fine |SM, SC-SM, |A-4 | 0 | 0 | 100 |98-100|94-100|36-85 |14-29 |NP-10 | | sandy loam, | ML, CL-ML | | | | | | | | | | | very fine | | | | | | | | | | | | sandy loam | | | | | | | | | | | 14-34 |Loam, fine |SM, CL-ML, |A-4 | 0 | 0 | 100 |98-100|94-100|36-85 |14-29 |NP-10 | | sandy loam, | ML, SC-SM | | | | | | | | | | | very fine | | | | | | | | | | | | sandy loam | | | | | | | | | | | 34-46 |Stratified |CL-ML, ML, |A-2, A-4 | 0 | 0 | 100 |98-100|90-100|15-97 | 0-30 |NP-10 | | loamy fine | SM, SC-SM | | | | | | | | | | | sand to loam | | | | | | | | | | | 46-80 |Stratified |CL-ML, ML, |A-2, A-4 | 0 | 0 | 100 |98-100|90-100|15-97 | 0-30 |NP-10 | | loamy fine | SC-SM, SM | | | | | | | | | | | sand to loam | | | | | | | | | | | | | | | | | | | | | | YahA: | | | | | | | | | | | | Yahola----------| 0-6 |Fine sandy loam|SC-SM, SM, |A-4 | 0 | 0 | 100 |98-100|94-100|36-60 |14-26 |NP-7 | | | ML, CL-ML | | | | | | | | | | 6-34 |Loam, fine |ML, CL-ML, |A-4 | 0 | 0 | 100 |98-100|94-100|36-85 |14-29 |NP-10 | | sandy loam, | SC-SM, SM | | | | | | | | | | | very fine | | | | | | | | | | | | sandy loam | | | | | | | | | | | 34-80 |Stratified |CL-ML, ML, |A-2, A-4 | 0 | 0 | 100 |98-100|90-100|15-97 | 0-30 |NP-10 | | loamy fine | SM, SC-SM | | | | | | | | | | | sand to loam | | | | | | | | | | | | | | | | | | | | | | ZaHC: | | | | | | | | | | | | Zaneis----------| 0-12 |Fine sandy loam|SM, SC-SM, |A-4 | 0 | 0 | 100 |98-100|91-100|36-60 |15-26 |NP-7 | | | ML, CL-ML | | | | | | | | | | 12-25 |Sandy clay |CL, SC |A-4, A-6 | 0 | 0 | 100 | 100 |90-100|36-90 |25-40 | 7-18 | | loam, clay | | | | | | | | | | | | loam, loam | | | | | | | | | | | 25-32 |Sandy clay |CL, SC |A-4, A-6 | 0 | 0 | 100 | 100 |90-100|36-90 |25-40 | 7-18 | | loam, clay | | | | | | | | | | | | loam | | | | | | | | | | | 32-52 |Sandy clay |CL, CL-ML, |A-2, A-4, A-6| 0 | 0-10 |90-100|90-100|85-100|30-90 |20-40 | 4-18 | | loam, clay | SC, SC-SM | | | | | | | | | | | loam, fine | | | | | | | | | | | | sandy loam | | | | | | | | | | | 52-60 |Bedrock | | | --- | --- | --- | --- | --- | --- | --- | --- | | | | | | | | | | | |
Logan County, Oklahoma 411 Engineering Index Properties—Continued _____________________________________________________________________________________________________________________________ | | | Classification | Fragments | Percentage passing | | Map symbol | Depth | USDA texture | | | sieve number-- |Liquid| Plas- _____________________________________________________________________ and soil name | | | | | >10 | 3-10 | | | | |limit |ticity | | | Unified | AASHTO |inches|inches| 4 | 10 | 40 | 200 | |index _____________________________________________________________________________________________________________________________ | In | | | | Pct | Pct | | | | | Pct | __ ___ ___ ___ | | | | | | | | | | | | ZaHC: | | | | | | | | | | | | Huska-----------| 0-5 |Loam |CL, CL-ML |A-4, A-6 | 0 | 0 | 100 | 100 |94-100|51-97 |24-37 | 5-14 | 5-13 |Clay, silty |CH, CL |A-6, A-7 | 0 | 0 | 100 | 100 |96-100|80-99 |37-60 |15-34 | | clay, clay | | | | | | | | | | | | loam, silty | | | | | | | | | | | | clay loam | | | | | | | | | | | 13-20 |Clay, silty |CH, CL |A-6, A-7 | 0 | 0 | 100 | 100 |96-100|80-99 |37-60 |15-34 | | clay, clay | | | | | | | | | | | | loam, silty | | | | | | | | | | | | clay loam | | | | | | | | | | | 20-39 |Clay loam, |CL, CH |A-6, A-7 | 0 | 0 | 100 | 100 |96-100|80-99 |37-60 |15-34 | | silty clay, | | | | | | | | | | | | silty clay | | | | | | | | | | | | loam | | | | | | | | | | | 39-59 |Clay loam, |CH, CL |A-6, A-7 | 0 | 0 | 100 | 100 |96-100|80-99 |37-60 |15-34 | | silty clay, | | | | | | | | | | | | silty clay | | | | | | | | | | | | loam | | | | | | | | | | | 59-67 |Bedrock | | | --- | --- | --- | --- | --- | --- | --- | --- | | | | | | | | | | | | ZanB: | | | | | | | | | | | | Zaneis----------| 0-10 |Loam |CL |A-4, A-6 | 0 | 0 | 100 |98-100|91-100|65-85 |30-35 | 9-13 | 10-17 |Loam, clay |CL, SC |A-4, A-6 | 0 | 0 | 100 | 100 |90-100|36-90 |25-40 | 7-18 | | loam, sandy | | | | | | | | | | | | clay loam | | | | | | | | | | | 17-28 |Clay loam, |CL, SC |A-4, A-6 | 0 | 0 | 100 | 100 |90-100|36-90 |25-40 | 7-18 | | sandy clay | | | | | | | | | | | | loam | | | | | | | | | | | 28-38 |Clay loam, |SC, CL |A-4, A-6 | 0 | 0 | 100 | 100 |90-100|36-90 |25-40 | 7-18 | | sandy clay | | | | | | | | | | | | loam | | | | | | | | | | | 38-44 |Sandy clay |SC-SM, SC, |A-2, A-4, A-6| 0 | 0-10 |90-100|90-100|85-100|30-90 |20-40 | 4-18 | | loam, clay | CL-ML, CL | | | | | | | | | | | loam, fine | | | | | | | | | | | | sandy loam | | | | | | | | | | | 44-54 |Bedrock | | | --- | --- | --- | --- | --- | --- | --- | --- | | | | | | | | | | | |
412 Soil Survey Engineering Index Properties—Continued _____________________________________________________________________________________________________________________________ | | | Classification | Fragments | Percentage passing | | Map symbol | Depth | USDA texture | | | sieve number-- |Liquid| Plas- _____________________________________________________________________ and soil name | | | | | >10 | 3-10 | | | | |limit |ticity | | | Unified | AASHTO |inches|inches| 4 | 10 | 40 | 200 | |index _____________________________________________________________________________________________________________________________ | In | | | | Pct | Pct | | | | | Pct | __ ___ ___ ___ | | | | | | | | | | | | ZanC: | | | | | | | | | | | | Zaneis----------| 0-8 |Loam |CL |A-4, A-6 | 0 | 0 | 100 |98-100|91-100|65-85 |30-35 | 9-13 | 8-14 |Loam, clay |CL, SC |A-4, A-6 | 0 | 0 | 100 | 100 |90-100|36-90 |25-40 | 7-18 | | loam, sandy | | | | | | | | | | | | clay loam | | | | | | | | | | | 14-25 |Loam, clay |SC, CL |A-4, A-6 | 0 | 0 | 100 | 100 |90-100|36-90 |25-40 | 7-18 | | loam, sandy | | | | | | | | | | | | clay loam | | | | | | | | | | | 25-31 |Clay loam, |CL, SC |A-4, A-6 | 0 | 0 | 100 | 100 |90-100|36-90 |25-40 | 7-18 | | sandy clay | | | | | | | | | | | | loam | | | | | | | | | | | 31-47 |Clay loam, |CL, SC |A-4, A-6 | 0 | 0 | 100 | 100 |90-100|36-90 |25-40 | 7-18 | | sandy clay | | | | | | | | | | | | loam | | | | | | | | | | | 47-54 |Bedrock | | | --- | --- | --- | --- | --- | --- | --- | --- | | | | | | | | | | | | ZanC2: | | | | | | | | | | | | Zaneis----------| 0-8 |Loam |CL |A-4, A-6 | 0 | 0 | 100 |98-100|91-100|65-85 |30-35 | 9-13 | 8-15 |Loam, clay |CL, SC |A-4, A-6 | 0 | 0 | 100 | 100 |90-100|36-90 |25-40 | 7-18 | | loam, sandy | | | | | | | | | | | | clay loam | | | | | | | | | | | 15-26 |Sandy clay |CL, SC |A-4, A-6 | 0 | 0 | 100 | 100 |90-100|36-90 |25-40 | 7-18 | | loam, clay | | | | | | | | | | | | loam | | | | | | | | | | | 26-43 |Sandy clay |CL, SC |A-4, A-6 | 0 | 0 | 100 | 100 |90-100|36-90 |25-40 | 7-18 | | loam, clay | | | | | | | | | | | | loam | | | | | | | | | | | 43-56 |Sandy clay |CL, CL-ML, |A-2, A-4, A-6| 0 | 0-10 |90-100|90-100|85-100|30-90 |20-40 | 4-18 | | loam, clay | SC, SC-SM | | | | | | | | | | | loam, fine | | | | | | | | | | | | sandy loam | | | | | | | | | | | 56-60 |Bedrock | | | --- | --- | --- | --- | --- | --- | --- | --- | | | | | | | | | | | | _____________________________________________________________________________________________________________________________
Logan County, Oklahoma 413

Engineering Index Test Data

The table “Engineering Index Test Data of Selected Soils” shows laboratory test

data for several pedons sampled at carefully selected sites in the survey area. The

pedons are representative of the series and are described in the section “Soil Series

and Their Morphology.” The soil samples were tested by the Oklahoma Department of

Transportation, Materials Division.

The testing methods generally are those of the American Association of State

Highway and Transportation Officials (AASHTO) or the American Society for Testing

and Materials (ASTM).

The tests and methods are AASHTO classification—M 145 (AASHTO),

D 3282 (ASTM); Unified classification—D 2487 (ASTM); mechanical analysis—

T 88 (AASHTO), D 2217 (ASTM); liquid limit—T 89 (AASHTO), D 423 (ASTM);

plasticity index—T 90 (AASHTO), D 424 (ASTM), D 1883 (ASTM); and shrinkage—

T 92 (AASHTO), D 427 (ASTM).
414 Soil Survey Engineering Index Test Data of Selected Soils (The location of the sampled pedons is given at the end of the table. Dashes indicate that data were not available. RN means report number; LL, liquid limit; PI, plasticity index; and NP, nonplastic) _________________________________________________________________________________________________________________________________ | | | | | Shrinkage | Percentage | Percentage | | | Classication Soil name and | Parent | RN |Depth| Horizon | | passing sieve-- | smaller than-- | LL | PI | ________________________________________________ ______________ sample number | material | | | |Limit |Ratio| No. | No. | No. |0.05 |0.005|0.002| | |AASHTO|Unified | | | | | | | 10 | 40 | 200 | mm | mm | mm | | | | _________________________________________________________________________________________________________________________________ | | | In | | | | | | | | | | Pct | | | __ ___ | | | | | | | | | | | | | | | | Coyle loam: |Sandstone |6499 | 0-5 |A-Bt | --- | --- | 100 | 100 | 64 | 48 | 11 | 8 | NP | NP |A-4 | --- (S910K-083-001) | |6500 | 5-18|Bt-R | 16 | 1.84| 100 | 100 | 56 | 46 | 23 | 20 | 27 | 10 |A-4 | --- | | | | | | | | | | | | | | | | Kirkland silt | | | | | | | | | | | | | | | | loam: |Alluvium over|6501 | 0-8 |Ap | 16 | 1.83| 100 | 100 | 95 | 79 | 29 | 25 | 33 | 14 |A-6 | --- (S91OK-083-005) | shale |6502 | 8-40|Bt-Btk | 9 | 2.08| 100 | 99 | 96 | 88 | 48 | 42 | 55 | 36 |A-7-6 | --- | |6353 |50-73|2Bt5-2Bt6| --- | --- | 100 | 99 | 94 | 89 | 55 | 51 | 61 | 43 |A-6-7 | --- | | | | | | | | | | | | | | | | Lebron clay: |Clayey over | --- | 9-18|A-C1 | --- | --- | 100 | 100 | 99 | 100 | 78 | 67 | 61 | 49 |A-6-7 | --- (S92OK-083-004) | sandy | | | | | | | | | | | | | | | | alluvium | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | Masham silty clay| | | | | | | | | | | | | | | | loam: |Mudstone |6503 | 0-4 |A | 18 | 1.88| 91 | 86 | 76 | 71 | 39 | 32 | 40 | 18 |A-6 | --- (S91OK-083-008) | |6504 | 4-13|Bw-BC | 14 | 1.99| 99 | 98 | 89 | 81 | 45 | 33 | 38 | 20 |A-6 | --- | | | | | | | | | | | | | | | | Mulhall loam: |Colluvium |6505 | 0-11|A | 18 | 1.75| 100 | 100 | 65 | 52 | 23 | 20 | 31 | 10 |A-6 | --- (S91OK-083-006) | from |6506 |17-40|Bt | 15 | 1.88| 100 | 100 | 62 | 54 | 31 | 25 | 38 | 21 |A-6 | --- | sandstone |6507 |40-65|2Bt | 17 | 1.83| 100 | 100 | 56 | 45 | 27 | 26 | 35 | 18 |A-6 | --- | | | | | | | | | | | | | | | | Zaneis fine sandy|Sandstone |6352 |11-35|Bt | --- | --- | 100 | 100 | 51 | 46 | 31 | 29 | 33 | 16 |A-6 | --- loam: | | | | | | | | | | | | | | | | (S91OK-083-003) | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | _________________________________________________________________________________________________________________________________ Location of sampled pedons: Coyle loam; about 1,450 feet east and 1,600 north of the southwest corner of sec. 34, T. 17 N., R. 2 W. (The data reflect that the surface layer is slightly outside the range of a loam texture, but the data is within normal laboratory error.) Kirkland silt loam; about l,000 feet north and l50 feet west of the southeast corner of sec. 36, T. l6 N., R. 4 W. (The reaction is slightly outside of the range of the series because of the addition of acid-forming fertilizer.) Lebron clay; about 3,800 feet east and 1,200 feet south of the northwest corner of sec. 9, T. 17 N., R. 2 W. (This is the type location for the series.) Masham silty clay loam; about 1,200 feet east and 300 feet south of the northwest corner of sec. 35, T. 15 N., R. 1 W. Mulhall loam; about 1,250 feet east and 800 feet south of the northwest corner of sec. 19, R. 19 N., T. 2 W. Zaneis fine sandy loam; about 5,000 feet west and 2,500 feet north of the southeast corner of sec. 30, T. 18 N., R. 2 W. (The surface layer of fine sandy loam is not typical for the map unit ZanB but is within the range of the Zaneis series. This pedon is an inclusion to the map unit ZanB.)
Logan County, Oklahoma 415

Physical Properties

The table “Physical Properties of the Soils” shows estimates of some characteristics

and features that affect soil behavior. These estimates are given for the major layers of

each soil in the survey area. The estimates are based on field observations and on

test data for these and similar soils.

Depth to the upper and lower boundaries of each layer is indicated. The range in

depth and information on other properties of each layer are given in the section “Soil

Series and Their Morphology.”

Sand as a soil separate consists of mineral soil particles that are 0.05 millimeter to

2 millimeters in diameter. The estimated sand content of each soil layer is given as a

percentage, by weight, of the soil material that is less than 2 millimeters in diameter.

Silt as a soil separate consists of mineral soil particles that are 0.002 to 0.05

millimeter in diameter. The estimated silt content of each soil layer is given as a

percentage, by weight, of the soil material that is less than 2 millimeters in diameter.

Clay as a soil separate consists of mineral soil particles that are less than 0.002

millimeter in diameter. The estimated clay content of each soil layer is given as a

percentage, by weight, of the soil material that is less than 2 millimeters in diameter.

The amount and kind of clay greatly affect the fertility and physical condition of the

soil. They determine the ability of the soil to adsorb cations and to retain moisture.

They influence shrink-swell potential, permeability, plasticity, the ease of soil

dispersion, and other soil properties. The amount and kind of clay in a soil also affect

tillage and earth-moving operations.

Moist bulk density is the weight of soil (ovendry) per unit volume. Volume is

measured when the soil is at field moisture capacity, that is, the moisture content at

1

/3-bar moisture tension. Weight is determined after drying the soil at 105 degrees C. In

the table “Physical Properties of the Soils,” the estimated moist bulk density of each

major soil horizon is expressed in grams per cubic centimeter of soil material that is

less than 2 millimeters in diameter. Bulk density data are used to compute shrink-swell

potential, available water capacity, total pore space, and other soil properties. The

moist bulk density of a soil indicates the pore space available for water and roots. A

bulk density of more than 1.6 can restrict water storage and root penetration. Moist

bulk density is influenced by texture, kind of clay, content of organic matter, and soil

structure.

Permeability (Ksat ) refers to the ability of a soil to transmit water or air. The term

“permeability,” as used in soil surveys, indicates saturated hydraulic conductivity (Ksat ).

The estimates in the table indicate the rate of water movement, in inches per hour,

when the soil is saturated. They are based on soil characteristics observed in the field,

particularly structure, porosity, and texture. Permeability is considered in the design of

soil drainage systems and septic tank absorption fields.

Available water capacity refers to the quantity of water that the soil is capable of

storing for use by plants. The capacity for water storage is given in inches of water per

inch of soil for each major soil layer. The capacity varies, depending on soil properties

that affect the retention of water and the depth of the root zone. The most important

properties are the content of organic matter, soil texture, bulk density, and soil

structure. Available water capacity is an important factor in the choice of plants or

crops to be grown and in the design and management of irrigation systems. Available

water capacity is not an estimate of the quantity of water actually available to plants at

any given time.

Linear extensibility refers to the change in length of an unconfined clod as moisture

content is decreased from a moist to a dry state. It is an expression of the volume

change between the water content of the clod at 1/3- or 1/10-bar tension (33kPa or

10kPa tension) and oven dryness. The volume change is reported in the table as
416 Soil Survey

percent change for the whole soil. Volume change is influenced by the amount and

type of clay minerals in the soil.

Linear extensibility is used to determine the shrink-swell potential of soils. The

shrink-swell potential is low if the soil has a linear extensibility of less than 3 percent;

moderate if 3 to 6 percent; high if 6 to 9 percent; and very high if more than 9 percent.

If the linear extensibility is more than 3, shrinking and swelling can cause damage to

buildings, roads, and other structures and to plant roots. Special design commonly is

needed.

Organic matter is the plant and animal residue in the soil at various stages of

decomposition. The estimated content of organic matter is expressed as a percentage,

by weight, of the soil material that is less than 2 millimeters in diameter.

The content of organic matter in a soil can be maintained or increased by returning

crop residue to the soil. Organic matter affects the available water capacity, infiltration

rate, and tilth. It is a source of nitrogen and other nutrients for crops.

Erosion factors.—Soil erodibility (K) and soil-loss tolerance (T) factors are used in

an equation that predicts the amount of soil lost through water erosion in areas of

cropland. The procedure for predicting soil loss is useful in guiding the selection of soil

and water conservation practices.

Erosion factor K indicates the susceptibility of a soil to sheet and rill erosion by

water. Factor K is one of six factors used in the Universal Soil Loss Equation (USLE) to

predict the average rate of soil loss by sheet and rill erosion in tons per acre per year.

The soil properties that influence erodibility are those that affect the infiltration rate, the

movement of water through the soil, and the water storage capacity of the soil and

those that allow the soil to resist dispersion, splashing, abrasion, and the transporting

forces of rainfall and runoff. The most important soil properties are the content of silt

plus very fine sand, the content of sand coarser than very fine sand, the content of

organic matter, soil structure, and permeability. The estimates are modified by the

presence of rock fragments. Values of K range from 0.02 to 0.64. The higher the value,

the more susceptible the soil is to sheet and rill erosion.

Erosion factor Kf indicates the erodibility of the fine-earth fraction, or the material

less than 2 millimeters in size. This is one of the factors used in the Revised Universal

Soil Loss Equation.

Erosion factor T is an estimate of the maximum annual rate of soil erosion by wind

or water that can occur over a sustained period without affecting crop productivity. The

rate is expressed in tons of soil loss per acre per year. Ratings of 1 to 5 are used,

depending on soil properties and prior erosion. The criteria used in assigning a T

factor to a soil include maintenance of an adequate rooting depth for crop production,

potential reduction of crop yields, maintenance of water-control structures affected by

sedimentation, prevention of gullying, and the value of nutrients lost through erosion.

Wind erodibility groups.—Wind erodibility is directly related to the percentage of dry,

nonerodible surface soil aggregates larger than 0.84 millimeter in diameter. From this

percentage, the wind erodibility index factor (I) is determined. This factor is an

expression of the stability of the soil aggregates, or the extent to which they are broken

down by tillage and the abrasion caused by windblown soil particles. Soils are

assigned to wind erodibility groups (WEGs) having similar percentages of dry soil

aggregates larger than 0.84 millimeter.

Wind erodibility groups are made up of soils that have similar properties affecting

their resistance to soil blowing in cultivated areas. The groups indicate the

susceptibility to soil blowing. Soils are grouped according to the following distinctions:

WEG 1. Very fine sand, fine sand, sand, and coarse sand.

WEG 2. Loamy very fine sand, loamy fine sand, loamy sand, loamy coarse sand,

ash, and sapric organic soil material.

WEG 3. Very fine sandy loam, fine sandy loam, sandy loam, and coarse sandy

loam.
Logan County, Oklahoma 417

WEG 4. Clay, silty clay, and noncalcareous clay loam and silty clay loam with

more than 35 percent clay.

WEG 4L. Calcareous loam, silt loam, clay loam, and silty clay loam characterized

by a strongly or violently effervescent reaction to cold dilute (1N) HCl.

WEG 5. Noncalcareous loam and silt loam with less than 20 percent clay and

sandy clay loam, sandy clay, and hemic organic soil material.

WEG 6. Noncalcareous loam and silt loam with more than 20 percent clay and

noncalcareous clay loam with less than 35 percent clay.

WEG 7. Silt, noncalcareous silty clay loam with less than 35 percent clay, and

fibric organic soil material.

WEG 8. Soils that are not susceptible to soil blowing because of rock fragments

on the surface or because of surface wetness.

Wind erodibility index is a numerical value indicating the susceptibility of soil to soil

blowing, or the tons per acre per year that can be expected to be lost to soil blowing.

There is a close correlation between soil blowing and the size and durability of surface

clods, rock fragments, organic matter, and a calcareous reaction. Soil moisture and

frozen soil layers also influence soil blowing.

Additional information about wind erodibility groups and K, Kf, and T factors can be

obtained from the local office of the Natural Resources Conservation Service or the

Cooperative Extension Service.
418 Soil Survey Physical Properties of the Soils (Entries under "Erosion factors--T" apply to the entire profile. Entries under "Wind erodibility group" and "Wind erodibility index" apply only to the surface layer. Absence of an entry indicates that data were not estimated) ___________________________________________________________________________________________________________________________________ | | | | | | | | | |Erosion factors|Wind |Wind _______________ Map symbol | Depth | Sand | Silt | Clay | Moist |Permeability |Available| Linear | Organic | | | |erodi-|erodi- and soil name | | | | | bulk | (Ksat) | water |extensi- | matter | K | Kf | T |bility|bility | | | | | density | |capacity | bility | | | | |group |index ___________________________________________________________________________________________________________________________________ | In | Pct | Pct | Pct | g/cc | In/hr | In/in | Pct | Pct | | | | | __ ___ ___ ___ ____ _____ _____ ___ ___ | | | | | | | | | | | | | | AspA: | | | | | | | | | | | | | | Ashport--------| 0-10 | 0-50 |50-88 | 15-26 |1.30-1.50| 0.6-2 |0.16-0.24| 0.0-2.9 | 1.0-3.0 | .37 | .37 | 5 | 6 | 48 | 10-22 | 0-53 |27-82 | 18-35 |1.40-1.70| 0.6-2 |0.15-0.24| 3.0-5.9 | 0.5-1.0 | .37 | .37 | | | | 22-44 | 0-53 |27-82 | 18-35 |1.40-1.70| 0.6-2 |0.15-0.24| 3.0-5.9 | 0.5-1.0 | .37 | .37 | | | | 44-80 | 0-53 |27-82 | 18-35 |1.40-1.70| 0.6-2 |0.15-0.24| 3.0-5.9 | 0.5-1.0 | .37 | .37 | | | | | | | | | | | | | | | | | AstA: | | | | | | | | | | | | | | Ashport--------| 0-11 | 0-50 |50-88 | 15-26 |1.30-1.50| 0.6-2 |0.16-0.24| 0.0-2.9 | 1.0-3.0 | .37 | .37 | 5 | 6 | 48 | 11-30 | 0-53 |27-82 | 18-35 |1.40-1.70| 0.6-2 |0.15-0.24| 3.0-5.9 | 0.5-1.0 | .37 | .37 | | | | 30-36 | 0-53 |27-82 | 18-35 |1.40-1.70| 0.6-2 |0.15-0.24| 3.0-5.9 | 0.5-1.0 | .37 | .37 | | | | 36-52 | 0-53 |27-82 | 18-35 |1.40-1.70| 0.6-2 |0.15-0.24| 3.0-5.9 | 0.5-1.0 | .37 | .37 | | | | 52-67 | 0-53 |27-82 | 18-35 |1.40-1.70| 0.6-2 |0.15-0.24| 3.0-5.9 | 0.5-1.0 | .37 | .37 | | | | 67-80 | 0-53 |27-82 | 18-35 |1.40-1.70| 0.6-2 |0.15-0.24| 3.0-5.9 | 0.5-1.0 | .37 | .37 | | | | | | | | | | | | | | | | | BetA: | | | | | | | | | | | | | | Bethany--------| 0-8 | 0-50 |50-82 | 15-26 |1.30-1.50| 0.6-2 |0.16-0.24| 0.0-2.9 | 1.0-3.0 | .43 | .43 | 5 | 5 | 56 | 8-18 | 0-32 |40-82 | 18-32 |1.45-1.70| 0.2-0.6 |0.16-0.22| 3.0-5.9 | 1.0-3.0 | .37 | .37 | | | | 18-28 | 0-45 |15-73 | 27-35 |1.45-1.70| 0.2-0.6 |0.16-0.22| 3.0-5.9 | 1.0-3.0 | .37 | .37 | | | | 28-46 | 0-45 | 0-65 | 35-50 |1.40-1.70| 0.06-0.2 |0.12-0.22| 6.0-8.9 | 0.5-2.0 | .37 | .37 | | | | 46-62 | 0-45 | 0-65 | 35-50 |1.40-1.70| 0.06-0.2 |0.12-0.22| 6.0-8.9 | 0.5-2.0 | .37 | .37 | | | | 62-80 | 0-45 | 0-65 | 35-50 |1.40-1.70| 0.06-0.2 |0.12-0.22| 6.0-8.9 | 0.0-2.0 | .37 | .37 | | | | | | | | | | | | | | | | | BetB: | | | | | | | | | | | | | | Bethany--------| 0-10 | 0-32 |50-82 | 18-26 |1.30-1.50| 0.6-2 |0.16-0.24| 0.0-2.9 | 1.0-3.0 | .43 | .43 | 5 | 5 | 56 | 10-22 | 0-45 |15-73 | 27-35 |1.45-1.70| 0.2-0.6 |0.16-0.22| 3.0-5.9 | 1.0-3.0 | .37 | .37 | | | | 22-31 | 0-45 | 0-65 | 35-50 |1.40-1.70| 0.06-0.2 |0.12-0.22| 6.0-8.9 | 0.5-2.0 | .37 | .37 | | | | 31-51 | 0-45 | 0-65 | 35-50 |1.40-1.70| 0.06-0.2 |0.12-0.22| 6.0-8.9 | 0.5-2.0 | .37 | .37 | | | | 51-74 | 0-45 | 0-65 | 35-50 |1.40-1.70| 0.06-0.2 |0.12-0.22| 6.0-8.9 | 0.5-2.0 | .37 | .37 | | | | 74-80 | 0-45 | 0-65 | 35-50 |1.40-1.70| 0.06-0.2 |0.12-0.22| 6.0-8.9 | 0.0-2.0 | .37 | .37 | | | | | | | | | | | | | | | | | BocA: | | | | | | | | | | | | | | Bocox----------| 0-11 |70-90 | 0-30 | 2-10 |1.35-1.50| 6-20 |0.07-0.11| 0.0-2.9 | 0.5-1.0 | .20 | .20 | 5 | 2 | 134 | 11-20 |70-90 | 0-30 | 2-10 |1.60-1.70| 6-20 |0.07-0.11| 0.0-2.9 | 0.5-1.0 | .20 | .20 | | | | 20-33 |70-90 | 0-30 | 2-10 |1.60-1.70| 6-20 |0.07-0.11| 0.0-2.9 | 0.5-1.0 | .20 | .20 | | | | 33-52 |45-80 | 0-27 | 18-35 |1.50-1.70| 0.6-2 |0.11-0.17| 0.0-2.9 | 0.0-0.5 | .32 | .32 | | | | 52-65 |45-80 | 0-27 | 15-35 |1.50-1.70| 0.6-2 |0.11-0.17| 0.0-2.9 | 0.0-0.5 | .32 | .32 | | | | 65-80 |45-80 | 0-27 | 15-35 |1.50-1.70| 0.6-2 |0.11-0.17| 0.0-2.9 | 0.0-0.5 | .32 | .32 | | | | | | | | | | | | | | | | |
Logan County, Oklahoma 419 Physical Properties of the Soils—Continued ___________________________________________________________________________________________________________________________________ | | | | | | | | | |Erosion factors|Wind |Wind _______________ Map symbol | Depth | Sand | Silt | Clay | Moist |Permeability |Available| Linear | Organic | | | |erodi-|erodi- and soil name | | | | | bulk | (Ksat) | water |extensi- | matter | K | Kf | T |bility|bility | | | | | density | |capacity | bility | | | | |group |index ___________________________________________________________________________________________________________________________________ | In | Pct | Pct | Pct | g/cc | In/hr | In/in | Pct | Pct | | | | | __ ___ ___ ___ ____ _____ _____ ___ ___ | | | | | | | | | | | | | | BtlA: | | | | | | | | | | | | | | Bathel---------| 0-12 |70-90 | 0-30 | 2-10 |1.35-1.50| 6-20 |0.06-0.10| 0.0-2.9 | 0.5-1.0 | .20 | .20 | 5 | 2 | 134 | 12-18 |43-90 | 0-50 | 2-18 |1.30-1.70| 2-20 |0.07-0.15| 0.0-2.9 | 0.5-1.0 | .20 | .20 | | | | 18-22 |45-80 | 0-27 | 20-35 |1.60-1.65| 0.6-2 |0.12-0.17| 0.0-2.9 | 0.5-1.0 | .32 | .32 | | | | 22-45 |45-80 | 0-27 | 18-45 |1.35-1.70| 0.2-6 |0.11-0.18| 3.0-5.9 | 0.0-0.5 | .32 | .32 | | | | 45-80 |43-90 | 0-50 | 2-18 |1.50-1.70| 2-20 |0.07-0.15| 0.0-2.9 | 0.0-0.5 | .24 | .24 | | | CaaA: | | | | | | | | | | | | | | Canadian-------| 0-10 |43-85 | 0-50 | 5-18 |1.40-1.65| 2-6 |0.10-0.15| 0.0-2.9 | 1.0-3.0 | .20 | .20 | 5 | 3 | 86 | 10-19 |43-85 | 0-50 | 5-18 |1.40-1.65| 2-6 |0.10-0.15| 0.0-2.9 | 1.0-3.0 | .20 | .20 | | | | 19-31 |32-85 | 0-50 | 10-18 |1.35-1.70| 2-6 |0.10-0.20| 0.0-2.9 | 0.0-2.0 | .20 | .20 | | | | 31-41 |32-85 | 0-50 | 10-18 |1.35-1.70| 2-6 |0.10-0.20| 0.0-2.9 | 0.0-2.0 | .20 | .20 | | | | 41-55 |32-90 | 0-50 | 5-18 |1.40-1.70| 2-20 |0.07-0.20| 0.0-2.9 | 0.0-1.0 | .20 | .20 | | | | 55-80 |32-90 | 0-50 | 5-18 |1.40-1.70| 2-20 |0.07-0.20| 0.0-2.9 | 0.0-1.0 | .20 | .20 | | | | | | | | | | | | | | | | | CAID: | | | | | | | | | | | | | | Coyle----------| 0-10 |23-53 |27-50 | 15-26 |1.30-1.55| 0.6-2 |0.15-0.20| 0.0-2.9 | 1.0-3.0 | .37 | .37 | 3 | 6 | 48 | 10-19 |20-80 | 0-53 | 20-35 |1.40-1.70| 0.6-2 |0.11-0.20| 0.0-2.9 | 0.5-1.0 | .32 | .32 | | | | 19-36 |20-80 | 0-53 | 18-35 |1.40-1.70| 0.6-2 |0.07-0.20| 0.0-2.9 | 0.0-0.5 | .28 | .32 | | | | 36-40 | --- | --- | --- |1.85-2.00|0.0000-0.2 | --- | --- | --- | --- | --- | | | | | | | | | | | | | | | | | Ashport--------| 0-11 | 0-50 |50-88 | 15-26 |1.30-1.50| 0.6-2 |0.16-0.24| 0.0-2.9 | 1.0-3.0 | .37 | .37 | 5 | 6 | 48 | 11-26 | 0-53 |40-82 | 18-35 |1.40-1.70| 0.6-2 |0.15-0.24| 3.0-5.9 | 0.5-1.0 | .37 | .37 | | | | 26-46 | 0-53 |40-82 | 18-35 |1.40-1.70| 0.6-2 |0.15-0.24| 3.0-5.9 | 0.5-1.0 | .37 | .37 | | | | 46-63 | 0-53 |40-82 | 18-35 |1.40-1.70| 0.6-2 |0.15-0.24| 3.0-5.9 | 0.5-1.0 | .37 | .37 | | | | 63-80 | 0-90 | 0-73 | 5-40 |1.40-1.70| 0.6-2 |0.15-0.24| 3.0-5.9 | 0.5-1.0 | .37 | .37 | | | | | | | | | | | | | | | | | Ironmound------| 0-6 |23-53 |27-50 | 15-25 |1.30-1.55| 0.6-2 |0.15-0.20| 0.0-2.9 | 1.0-3.0 | .32 | .32 | 2 | 5 | 56 | 6-18 |20-85 | 0-53 | 10-27 |1.40-1.70| 0.6-2 |0.11-0.20| 0.0-2.9 | 0.0-0.5 | .32 | .32 | | | | 18-24 | --- | --- | --- |1.85-2.00|0.0000-0.2 | --- | --- | --- | --- | --- | | | | | | | | | | | | | | | | | CoIC2: | | | | | | | | | | | | | | Coyle----------| 0-11 |23-53 |27-50 | 15-26 |1.30-1.55| 0.6-2 |0.15-0.20| 0.0-2.9 | 1.0-3.0 | .37 | .37 | 3 | 6 | 48 | 11-26 |20-80 | 0-53 | 20-35 |1.40-1.70| 0.6-2 |0.11-0.20| 0.0-2.9 | 0.5-1.0 | .32 | .32 | | | | 26-37 |20-83 | 0-53 | 18-35 |1.40-1.70| 0.6-2 |0.07-0.20| 0.0-2.9 | 0.0-0.5 | .28 | .32 | | | | 37-40 | --- | --- | --- |1.85-2.00|0.0000-0.2 | --- | --- | --- | --- | --- | | | | | | | | | | | | | | | | | Ironmound------| 0-5 |23-53 |27-50 | 15-25 |1.30-1.55| 0.6-2 |0.15-0.20| 0.0-2.9 | 1.0-3.0 | .32 | .32 | 2 | 5 | 56 | 5-17 |20-85 | 0-53 | 10-27 |1.40-1.70| 0.6-2 |0.11-0.20| 0.0-2.9 | 0.0-0.5 | .32 | .32 | | | | 17-24 | --- | --- | --- |1.85-2.00|0.0000-0.2 | --- | --- | --- | --- | --- | | | | | | | | | | | | | | | | |
420 Soil Survey Physical Properties of the Soils—Continued ___________________________________________________________________________________________________________________________________ | | | | | | | | | |Erosion factors|Wind |Wind _______________ Map symbol | Depth | Sand | Silt | Clay | Moist |Permeability |Available| Linear | Organic | | | |erodi-|erodi- and soil name | | | | | bulk | (Ksat) | water |extensi- | matter | K | Kf | T |bility|bility | | | | | density | |capacity | bility | | | | |group |index ___________________________________________________________________________________________________________________________________ | In | Pct | Pct | Pct | g/cc | In/hr | In/in | Pct | Pct | | | | | __ ___ ___ ___ ____ _____ _____ ___ ___ | | | | | | | | | | | | | | CoUB: | | | | | | | | | | | | | | Coyle----------| 0-8 |23-53 |27-50 | 15-26 |1.30-1.55| 0.6-2 |0.15-0.20| 0.0-2.9 | 1.0-3.0 | .37 | .37 | 3 | 6 | 48 | 8-14 |23-80 | 0-50 | 18-26 |1.40-1.70| 0.6-2 |0.11-0.20| 0.0-2.9 | 0.5-2.0 | .37 | .37 | | | | 14-22 |20-80 | 0-53 | 20-35 |1.40-1.70| 0.6-2 |0.11-0.20| 0.0-2.9 | 0.5-1.0 | .32 | .32 | | | | 22-30 | --- | --- | --- |1.85-2.00|0.0000-0.2 | --- | --- | --- | --- | --- | | | | | | | | | | | | | | | | | Urban land. | | | | | | | | | | | | | | | | | | | | | | | | | | | | CoUC: | | | | | | | | | | | | | | Coyle----------| 0-8 |23-53 |27-50 | 15-26 |1.30-1.55| 0.6-2 |0.15-0.20| 0.0-2.9 | 1.0-3.0 | .37 | .37 | 3 | 6 | 48 | 8-12 |23-80 | 0-50 | 18-26 |1.40-1.70| 0.6-2 |0.11-0.20| 0.0-2.9 | 0.5-2.0 | .37 | .37 | | | | 12-22 |20-80 | 0-53 | 20-35 |1.40-1.70| 0.6-2 |0.11-0.20| 0.0-2.9 | 0.5-1.0 | .32 | .32 | | | | 22-29 |20-80 | 0-53 | 18-35 |1.40-1.70| 0.6-2 |0.07-0.20| 0.0-2.9 | 0.0-0.5 | .28 | .32 | | | | 29-40 | --- | --- | --- |1.85-2.00|0.0000-0.2 | --- | --- | --- | --- | --- | | | | | | | | | | | | | | | | | Urban land. | | | | | | | | | | | | | | | | | | | | | | | | | | | | CoyB: | | | | | | | | | | | | | | Coyle----------| 0-6 |23-53 |27-50 | 15-26 |1.30-1.55| 0.6-2 |0.15-0.20| 0.0-2.9 | 1.0-3.0 | .37 | .37 | 3 | 6 | 48 | 6-11 |23-80 | 0-50 | 18-26 |1.40-1.70| 0.6-2 |0.11-0.20| 0.0-2.9 | 0.5-2.0 | .37 | .37 | | | | 11-18 |20-80 | 0-53 | 20-35 |1.40-1.70| 0.6-2 |0.11-0.20| 0.0-2.9 | 0.5-1.0 | .32 | .32 | | | | 18-25 |20-80 | 0-53 | 18-35 |1.40-1.70| 0.6-2 |0.07-0.20| 0.0-2.9 | 0.0-0.5 | .28 | .32 | | | | 25-31 |20-80 | 0-53 | 18-35 |1.40-1.70| 0.6-2 |0.07-0.20| 0.0-2.9 | 0.0-0.5 | .28 | .32 | | | | 31-42 | --- | --- | --- |1.85-2.00|0.0000-0.2 | --- | --- | --- | --- | --- | | | | | | | | | | | | | | | | | CoyC2: | | | | | | | | | | | | | | Coyle----------| 0-5 |23-53 |27-50 | 15-26 |1.30-1.55| 0.6-2 |0.15-0.20| 0.0-2.9 | 1.0-3.0 | .37 | .37 | 3 | 6 | 48 | 5-10 |23-80 | 0-50 | 18-26 |1.40-1.70| 0.6-2 |0.11-0.20| 0.0-2.9 | 0.5-2.0 | .37 | .37 | | | | 10-14 |20-80 | 0-53 | 20-35 |1.40-1.70| 0.6-2 |0.11-0.20| 0.0-2.9 | 0.5-1.0 | .32 | .32 | | | | 14-18 |20-80 | 0-53 | 20-35 |1.40-1.70| 0.6-2 |0.11-0.20| 0.0-2.9 | 0.5-1.0 | .32 | .32 | | | | 18-27 |20-80 | 0-53 | 18-35 |1.40-1.70| 0.6-2 |0.07-0.20| 0.0-2.9 | 0.0-0.5 | .28 | .32 | | | | 27-37 | --- | --- | --- |1.85-2.00|0.0000-0.2 | --- | --- | --- | --- | --- | | | | | | | | | | | | | | | | | CoZC3: | | | | | | | | | | | | | | Coyle----------| 0-6 |23-53 |27-50 | 15-26 |1.30-1.55| 0.6-2 |0.15-0.20| 0.0-2.9 | 1.0-3.0 | .37 | .37 | 2 | 6 | 48 | 6-18 |20-80 | 0-53 | 20-35 |1.40-1.70| 0.6-2 |0.11-0.20| 0.0-2.9 | 0.5-1.0 | .32 | .32 | | | | 18-31 |20-80 | 0-53 | 18-35 |1.40-1.70| 0.6-2 |0.07-0.20| 0.0-2.9 | 0.0-0.5 | .28 | .32 | | | | 31-40 | --- | --- | --- |1.85-2.00|0.0000-0.2 | --- | --- | --- | --- | --- | | | | | | | | | | | | | | | | | Zaneis---------| 0-5 |23-53 |27-50 | 15-26 |1.30-1.60| 0.6-2 |0.15-0.20| 0.0-2.9 | 1.0-3.0 | .37 | .37 | 3 | 5 | 56 | 5-15 |20-80 | 0-53 | 18-30 |1.40-1.70| 0.6-2 |0.12-0.20| 0.0-2.9 | 0.5-2.0 | .37 | .37 | | | | 15-35 |20-80 | 0-53 | 20-38 |1.45-1.70| 0.2-0.6 |0.12-0.20| 3.0-5.9 | 0.5-1.0 | .32 | .32 | | | | 35-47 |20-80 | 0-53 | 18-30 |1.40-1.70| 0.6-2 |0.11-0.20| 0.0-2.9 | 0.5-1.0 | .32 | .32 | | | | 47-60 | --- | --- | --- | --- |0.0000-0.2 | --- | --- | --- | --- | --- | | | | | | | | | | | | | | | | |
Logan County, Oklahoma 421 Physical Properties of the Soils—Continued ___________________________________________________________________________________________________________________________________ | | | | | | | | | |Erosion factors|Wind |Wind _______________ Map symbol | Depth | Sand | Silt | Clay | Moist |Permeability |Available| Linear | Organic | | | |erodi-|erodi- and soil name | | | | | bulk | (Ksat) | water |extensi- | matter | K | Kf | T |bility|bility | | | | | density | |capacity | bility | | | | |group |index ___________________________________________________________________________________________________________________________________ | In | Pct | Pct | Pct | g/cc | In/hr | In/in | Pct | Pct | | | | | __ ___ ___ ___ ____ _____ _____ ___ ___ | | | | | | | | | | | | | | DAM. | | | | | | | | | | | | | | Dam | | | | | | | | | | | | | | | | | | | | | | | | | | | | DerB: | | | | | | | | | | | | | | Derby----------| 0-11 |70-90 | 0-30 | 2-8 |1.35-1.50| 6-20 |0.07-0.11| 0.0-2.9 | 0.5-1.0 | .15 | .15 | 5 | 2 | 134 | 11-30 |70-90 | 0-30 | 2-8 |1.35-1.50| 6-20 |0.07-0.11| 0.0-2.9 | 0.5-1.0 | .15 | .15 | | | | 30-52 |70-100| 0-30 | 1-10 |1.50-1.70| 6-20 |0.05-0.11| 0.0-2.9 | 0.0-0.5 | .15 | .15 | | | | 52-84 |70-100| 0-30 | 1-10 |1.50-1.70| 6-20 |0.05-0.11| 0.0-2.9 | 0.0-0.5 | .15 | .15 | | | | | | | | | | | | | | | | | DerD: | | | | | | | | | | | | | | Derby----------| 0-9 |70-90 | 0-30 | 2-8 |1.35-1.50| 6-20 |0.07-0.11| 0.0-2.9 | 0.5-1.0 | .15 | .15 | 5 | 2 | 134 | 9-23 |70-100| 0-30 | 1-10 |1.50-1.70| 6-20 |0.05-0.11| 0.0-2.9 | 0.2-0.8 | .15 | .15 | | | | 23-49 |70-100| 0-30 | 1-10 |1.50-1.70| 6-20 |0.05-0.11| 0.0-2.9 | 0.0-0.5 | .15 | .15 | | | | 49-80 |70-100| 0-30 | 1-10 |1.50-1.70| 6-20 |0.05-0.11| 0.0-2.9 | 0.0-0.5 | .15 | .15 | | | | | | | | | | | | | | | | | DerE: | | | | | | | | | | | | | | Derby----------| 0-11 |70-90 | 0-30 | 2-8 |1.35-1.50| 6-20 |0.07-0.11| 0.0-2.9 | 0.5-1.0 | .15 | .15 | 5 | 2 | 134 | 11-20 |70-100| 0-30 | 1-10 |1.50-1.70| 6-20 |0.05-0.11| 0.0-2.9 | 0.0-0.5 | .15 | .15 | | | | 20-38 |70-100| 0-30 | 1-10 |1.50-1.70| 6-20 |0.05-0.11| 0.0-2.9 | 0.0-0.5 | .15 | .15 | | | | 38-54 |70-100| 0-30 | 1-10 |1.50-1.70| 6-20 |0.05-0.11| 0.0-2.9 | 0.0-0.5 | .15 | .15 | | | | 54-80 |70-100| 0-30 | 1-10 |1.50-1.70| 6-20 |0.05-0.11| 0.0-2.9 | 0.0-0.5 | .15 | .15 | | | | | | | | | | | | | | | | | DiRG: | | | | | | | | | | | | | | Darsil---------| 0-4 |70-90 | 0-30 | 1-10 |1.45-1.65| 6-20 |0.07-0.11| 0.0-2.9 | 0.5-3.0 | .17 | .17 | 2 | 2 | 134 | 4-16 |70-100| 0-30 | 1-10 |1.50-1.75| 6-20 |0.04-0.11| 0.0-2.9 | 0.0-0.5 | .17 | .17 | | | | 16-24 | --- | --- | --- |1.85-2.00| 0.2-2 | --- | --- | --- | --- | --- | | | | | | | | | | | | | | | | | Rock outcrop. | | | | | | | | | | | | | | | | | | | | | | | | | | | | DouB: | | | | | | | | | | | | | | Dougherty------| 0-13 | 0-90 | 0-30 | 2-10 |1.45-1.65| 2-6 |0.07-0.11| 0.0-2.9 | 0.5-1.0 | .20 | .20 | 5 | 2 | 134 | 13-26 |70-100| 0-30 | 2-10 |1.50-1.75| 2-6 |0.05-0.11| 0.0-2.9 | 0.0-0.5 | .15 | .15 | | | | 26-43 |45-80 | 0-27 | 18-30 |1.40-1.70| 0.6-2 |0.11-0.17| 0.0-2.9 | 0.0-0.5 | .32 | .32 | | | | 43-52 |45-80 | 0-27 | 18-30 |1.40-1.70| 0.6-2 |0.11-0.17| 0.0-2.9 | 0.0-0.5 | .32 | .32 | | | | 52-64 |45-90 | 0-30 | 12-25 |1.40-1.70| 0.6-6 |0.07-0.17| 0.0-2.9 | 0.0-0.5 | .24 | .24 | | | | 64-80 |43-90 | 0-50 | 2-15 |1.40-1.70| 2-6 |0.07-0.15| 0.0-2.9 | 0.0-0.5 | .20 | .20 | | | | | | | | | | | | | | | | | DouD: | | | | | | | | | | | | | | Dougherty------| 0-9 |70-90 | 0-30 | 2-10 |1.45-1.65| 2-6 |0.07-0.11| 0.0-2.9 | 0.5-1.0 | .20 | .20 | 5 | 2 | 134 | 9-22 |70-100| 0-30 | 2-10 |1.50-1.75| 2-6 |0.05-0.11| 0.0-2.9 | 0.0-0.5 | .15 | .15 | | | | 22-32 |45-80 | 0-27 | 18-30 |1.40-1.70| 0.6-2 |0.11-0.17| 0.0-2.9 | 0.0-0.5 | .32 | .32 | | | | 32-44 |45-90 | 0-30 | 12-25 |1.40-1.70| 0.6-6 |0.07-0.17| 0.0-2.9 | 0.0-0.5 | .24 | .24 | | | | 44-80 |43-90 | 0-50 | 2-15 |1.40-1.70| 2-6 |0.07-0.15| 0.0-2.9 | 0.0-0.5 | .20 | .20 | | | | | | | | | | | | | | | | | DUM. | | | | | | | | | | | | | | Dumps | | | | | | | | | | | | | | | | | | | | | | | | | | | |
422 Soil Survey Physical Properties of the Soils—Continued ___________________________________________________________________________________________________________________________________ | | | | | | | | | |Erosion factors|Wind |Wind _______________ Map symbol | Depth | Sand | Silt | Clay | Moist |Permeability |Available| Linear | Organic | | | |erodi-|erodi- and soil name | | | | | bulk | (Ksat) | water |extensi- | matter | K | Kf | T |bility|bility | | | | | density | |capacity | bility | | | | |group |index ___________________________________________________________________________________________________________________________________ | In | Pct | Pct | Pct | g/cc | In/hr | In/in | Pct | Pct | | | | | __ ___ ___ ___ ____ _____ _____ ___ ___ | | | | | | | | | | | | | | EasA: | | | | | | | | | | | | | | Easpur---------| 0-12 |23-53 |27-50 | 12-26 |1.30-1.55| 0.6-2 |0.15-0.24| 0.0-2.9 | 1.0-3.0 | .37 | .37 | 5 | 5 | 56 | 12-18 |23-53 |27-50 | 12-26 |1.30-1.55| 0.6-2 |0.15-0.24| 0.0-2.9 | 1.0-3.0 | .37 | .37 | | | | 18-36 |20-80 | 0-53 | 18-35 |1.40-1.70| 0.6-2 |0.11-0.20| 0.0-2.9 | 0.5-1.0 | .37 | .37 | | | | 36-62 |15-80 | 0-57 | 18-35 |1.40-1.70| 0.6-2 |0.11-0.20| 0.0-2.9 | 0.5-1.0 | .32 | .32 | | | | 62-80 |15-80 | 0-67 | 18-35 |1.40-1.70| 0.6-2 |0.15-0.24| 0.0-2.9 | 0.5-1.0 | .37 | .37 | | | | | | | | | | | | | | | | | GadA: | | | | | | | | | | | | | | Gaddy----------| 0-12 |70-90 | 0-30 | 5-15 |1.35-1.50| 6-20 |0.07-0.11| 0.0-2.9 | 0.0-0.5 | .17 | .17 | 5 | 2 | 134 | 12-29 |20-100| 0-53 | 5-35 |1.50-1.70| 6-20 |0.06-0.10| 0.0-2.9 | 0.5-1.0 | .17 | .17 | | | | 29-80 |20-100| 0-53 | 5-35 |1.50-1.70| 6-20 |0.06-0.10| 0.0-2.9 | 0.5-1.0 | .17 | .17 | | | | | | | | | | | | | | | | | GaGA: | | | | | | | | | | | | | | Gaddy----------| 0-6 |43-85 | 0-50 | 10-18 |1.30-1.60| 2-6 |0.11-0.15| 0.0-2.9 | 0.0-0.5 | .20 | .20 | 5 | 3 | 86 | 6-80 |20-100| 0-53 | 5-35 |1.50-1.70| 6-20 |0.06-0.10| 0.0-2.9 | 0.5-1.0 | .17 | .17 | | | | | | | | | | | | | | | | | Gracemore------| 0-12 |43-85 | 0-50 | 15-20 |1.30-1.60| 2-6 |0.13-0.20| 0.0-2.9 | 0.5-1.0 | .32 | .32 | 5 | 3 | 86 | 12-80 |20-100| 0-53 | 2-32 |1.50-1.70| 2-20 |0.05-0.11| 0.0-2.9 | 0.0-0.5 | .17 | .17 | | | | | | | | | | | | | | | | | GMGE4: | | | | | | | | | | | | | | Grainola-------| 0-4 |20-45 |15-53 | 27-35 |1.30-1.55| 0.2-0.6 |0.15-0.22| 3.0-5.9 | 0.5-1.0 | .37 | .37 | 2 | 7 | 38 | 4-15 | 0-45 | 0-60 | 35-60 |1.30-1.70|0.0015-0.06 |0.10-0.20| 6.0-8.9 | 0.0-0.5 | .37 | .37 | | | | 15-31 | 0-45 | 0-60 | 35-60 |1.30-1.70|0.0015-0.06 |0.12-0.20| 6.0-8.9 | 0.0-0.5 | .37 | .37 | | | | 31-38 | 0-45 | 0-60 | 35-60 |1.30-1.70|0.0015-0.06 |0.08-0.20| 6.0-8.9 | 0.0-0.5 | .37 | .37 | | | | 38-40 | --- | --- | --- |1.85-2.00|0.0000-0.2 | --- | --- | --- | --- | --- | | | | | | | | | | | | | | | | | Masham---------| 0-5 |20-45 |15-45 | 35-39 |1.30-1.55| 0.06-0.2 |0.15-0.22| 3.0-5.9 | 0.5-2.0 | .43 | .43 | 2 | 4L | 86 | 5-16 | 0-45 | 0-65 | 35-60 |1.30-1.75|0.0015-0.06 |0.10-0.22| 6.0-8.9 | 0.0-0.5 | .37 | .37 | | | | 16-35 | --- | --- | --- |1.85-2.00|0.0000-0.2 | --- | --- | --- | --- | --- | | | | | | | | | | | | | | | | | Gullied land. | | | | | | | | | | | | | | | | | | | | | | | | | | | | GMLG: | | | | | | | | | | | | | | Grainola-------| 0-5 |23-53 |27-50 | 15-26 |1.30-1.55| 0.6-2 |0.07-0.20| 0.0-2.9 | 0.5-1.0 | .24 | .43 | 3 | 7 | 38 | 5-24 | 0-45 | 0-60 | 35-60 |1.35-1.65|0.0015-0.06 |0.10-0.20| 6.0-8.9 | 0.0-0.5 | .37 | .37 | | | | 24-30 | 0-45 | 0-60 | 35-60 |1.35-1.65|0.0015-0.06 |0.02-0.20| 6.0-8.9 | 0.0-0.5 | .37 | .37 | | | | 30-40 | --- | --- | --- |1.85-2.00|0.0000-0.2 | --- | --- | --- | --- | --- | | | | | | | | | | | | | | | | | Masham---------| 0-4 | 0-20 |40-73 | 35-39 |1.30-1.55| 0.06-0.2 |0.15-0.22| 3.0-5.9 | 0.5-2.0 | .43 | .43 | 2 | 4L | 86 | 4-13 | 0-45 | 0-65 | 35-60 |1.30-1.75|0.0015-0.06 |0.10-0.22| 6.0-8.9 | 0.0-0.5 | .37 | .37 | | | | 13-25 | --- | --- | --- |1.85-2.00|0.0000-0.2 | --- | --- | --- | --- | --- | | | | | | | | | | | | | | | | | Lucien---------| 0-6 |23-53 |27-50 | 15-25 |1.30-1.55| 2-6 |0.12-0.24| 0.0-2.9 | 1.0-3.0 | .32 | .32 | 2 | 5 | 56 | 6-17 |23-85 | 0-50 | 10-25 |1.30-1.55| 2-6 |0.12-0.24| 0.0-2.9 | 0.5-2.0 | .32 | .32 | | | | 17-30 | --- | --- | --- |1.85-2.00|0.0015-0.06 | --- | --- | --- | --- | --- | | | | | | | | | | | | | | | | |
Logan County, Oklahoma 423 Physical Properties of the Soils—Continued ___________________________________________________________________________________________________________________________________ | | | | | | | | | |Erosion factors|Wind |Wind _______________ Map symbol | Depth | Sand | Silt | Clay | Moist |Permeability |Available| Linear | Organic | | | |erodi-|erodi- and soil name | | | | | bulk | (Ksat) | water |extensi- | matter | K | Kf | T |bility|bility | | | | | density | |capacity | bility | | | | |group |index ___________________________________________________________________________________________________________________________________ | In | Pct | Pct | Pct | g/cc | In/hr | In/in | Pct | Pct | | | | | __ ___ ___ ___ ____ _____ _____ ___ ___ | | | | | | | | | | | | | | GohC: | | | | | | | | | | | | | | Goodnight------| 0-9 |70-90 | 0-30 | 5-12 |1.35-1.50| 6-20 |0.05-0.11| 0.0-2.9 | 0.5-1.0 | .17 | .17 | 5 | 2 | 134 | 9-18 |70-100| 0-30 | 2-12 |1.50-1.70| 6-20 |0.02-0.11| 0.0-2.9 | 0.5-1.0 | .15 | .15 | | | | 18-25 |70-100| 0-30 | 2-12 |1.50-1.70| 6-20 |0.02-0.11| 0.0-2.9 | 0.5-1.0 | .15 | .15 | | | | 25-64 |70-100| 0-30 | 2-12 |1.50-1.70| 6-20 |0.02-0.11| 0.0-2.9 | 0.5-1.0 | .15 | .15 | | | | 64-80 |70-100| 0-30 | 2-12 |1.50-1.70| 6-20 |0.02-0.11| 0.0-2.9 | 0.5-1.0 | .15 | .15 | | | | | | | | | | | | | | | | | GohE: | | | | | | | | | | | | | | Goodnight------| 0-10 |70-90 | 0-30 | 5-12 |1.35-1.50| 6-20 |0.05-0.11| 0.0-2.9 | 0.5-1.0 | .17 | .17 | 5 | 2 | 134 | 10-22 |70-100| 0-30 | 2-12 |1.50-1.70| 6-20 |0.02-0.11| 0.0-2.9 | 0.5-1.0 | .15 | .15 | | | | 22-32 |70-100| 0-30 | 2-12 |1.50-1.70| 6-20 |0.02-0.11| 0.0-2.9 | 0.5-1.0 | .15 | .15 | | | | 32-52 |70-100| 0-30 | 2-12 |1.50-1.70| 6-20 |0.02-0.11| 0.0-2.9 | 0.5-1.0 | .15 | .15 | | | | 52-80 |70-100| 0-30 | 2-12 |1.50-1.70| 6-20 |0.02-0.11| 0.0-2.9 | 0.5-1.0 | .15 | .15 | | | | | | | | | | | | | | | | | GooE: | | | | | | | | | | | | | | Goodnight------| 0-6 |86-100| 0-14 | 2-10 |1.35-1.50| 6-20 |0.02-0.06| 0.0-2.9 | 0.5-1.0 | .15 | .15 | 5 | 1 | 220 | 6-20 |70-100| 0-30 | 2-12 |1.50-1.70| 6-20 |0.02-0.11| 0.0-2.9 | 0.5-1.0 | .15 | .15 | | | | 20-80 |70-100| 0-30 | 2-12 |1.50-1.70| 6-20 |0.02-0.11| 0.0-2.9 | 0.5-1.0 | .15 | .15 | | | | | | | | | | | | | | | | | GooG: | | | | | | | | | | | | | | Goodnight------| 0-8 |86-100| 0-14 | 2-10 |1.35-1.50| 6-20 |0.02-0.06| 0.0-2.9 | 0.5-1.0 | .15 | .15 | 5 | 1 | 220 | 8-23 |70-100| 0-30 | 2-12 |1.50-1.70| 6-20 |0.02-0.11| 0.0-2.9 | 0.5-1.0 | .15 | .15 | | | | 23-45 |70-100| 0-30 | 2-12 |1.50-1.70| 6-20 |0.02-0.11| 0.0-2.9 | 0.5-1.0 | .15 | .15 | | | | 45-80 |70-100| 0-30 | 2-12 |1.50-1.70| 6-20 |0.02-0.11| 0.0-2.9 | 0.5-1.0 | .15 | .15 | | | | | | | | | | | | | | | | | GraC: | | | | | | | | | | | | | | Grainola-------| 0-5 | 0-20 |40-73 | 27-35 |1.30-1.55| 0.2-0.6 |0.15-0.22| 3.0-5.9 | 0.5-1.0 | .37 | .37 | 3 | 7 | 38 | 5-18 | 0-45 | 0-60 | 35-60 |1.30-1.70|0.0015-0.06 |0.10-0.20| 6.0-8.9 | 0.0-0.5 | .37 | .37 | | | | 18-27 | 0-45 | 0-60 | 35-60 |1.30-1.70|0.0015-0.06 |0.12-0.20| 6.0-8.9 | 0.0-0.5 | .37 | .37 | | | | 27-32 | 0-45 | 0-60 | 35-60 |1.30-1.70|0.0015-0.06 |0.12-0.20| 6.0-8.9 | 0.0-0.5 | .37 | .37 | | | | 32-42 | --- | --- | --- |1.85-2.00|0.0000-0.2 | --- | --- | --- | --- | --- | | | | | | | | | | | | | | | | | GraD2: | | | | | | | | | | | | | | Grainola-------| 0-4 | 0-20 |40-73 | 27-35 |1.30-1.55| 0.2-0.6 |0.15-0.22| 3.0-5.9 | 0.5-1.0 | .37 | .37 | 3 | 7 | 38 | 4-26 | 0-45 | 0-60 | 35-60 |1.30-1.70|0.0015-0.06 |0.10-0.20| 6.0-8.9 | 0.0-0.5 | .37 | .37 | | | | 26-38 | 0-45 | 0-60 | 35-60 |1.30-1.70|0.0015-0.06 |0.12-0.20| 6.0-8.9 | 0.0-0.5 | .37 | .37 | | | | 38-48 | --- | --- | --- |1.85-2.00|0.0000-0.2 | --- | --- | --- | --- | --- | | | | | | | | | | | | | | | | | GrHC: | | | | | | | | | | | | | | Grant----------| 0-7 | 0-50 |50-88 | 15-26 |1.30-1.50| 0.6-2 |0.15-0.20| 0.0-2.9 | 1.0-3.0 | .37 | .37 | 4 | 5 | 56 | 7-11 | 0-85 | 0-88 | 15-26 |1.30-1.55| 0.6-2 |0.13-0.20| 0.0-2.9 | 1.0-3.0 | .37 | .37 | | | | 11-17 | 0-53 |27-82 | 18-35 |1.40-1.70| 0.6-2 |0.15-0.20| 0.0-2.9 | 0.5-1.0 | .37 | .37 | | | | 17-35 | 0-53 |27-82 | 18-35 |1.40-1.70| 0.6-2 |0.15-0.20| 0.0-2.9 | 0.5-1.0 | .37 | .37 | | | | 35-54 | 0-53 |27-82 | 18-35 |1.40-1.70| 0.6-2 |0.15-0.20| 0.0-2.9 | 0.5-1.0 | .37 | .37 | | | | 54-58 | --- | --- | --- |1.85-2.00|0.0015-0.06 | --- | --- | --- | --- | --- | | | | | | | | | | | | | | | | |
424 Soil Survey Physical Properties of the Soils—Continued ___________________________________________________________________________________________________________________________________ | | | | | | | | | |Erosion factors|Wind |Wind _______________ Map symbol | Depth | Sand | Silt | Clay | Moist |Permeability |Available| Linear | Organic | | | |erodi-|erodi- and soil name | | | | | bulk | (Ksat) | water |extensi- | matter | K | Kf | T |bility|bility | | | | | density | |capacity | bility | | | | |group |index ___________________________________________________________________________________________________________________________________ | In | Pct | Pct | Pct | g/cc | In/hr | In/in | Pct | Pct | | | | | __ ___ ___ ___ ____ _____ _____ ___ ___ | | | | | | | | | | | | | | GrHC: | | | | | | | | | | | | | | Huska----------| 0-6 |15-50 |50-88 | 12-26 |1.30-1.55| 0.6-2 |0.10-0.20| 0.0-2.9 | 1.0-3.0 | .49 | .49 | 2 | 5 | 56 | 6-17 | 0-45 |15-65 | 35-45 |1.50-1.70|0.0015-0.06 |0.06-0.10| 6.0-8.9 | 0.0-1.0 | .43 | .43 | | | | 17-32 | 0-45 |15-65 | 35-60 |1.50-1.70|0.0015-0.06 |0.06-0.10| 6.0-8.9 | 0.0-1.0 | .43 | .43 | | | | 32-40 | 0-45 |15-65 | 35-60 |1.50-1.70|0.0015-0.06 |0.06-0.10| 6.0-8.9 | 0.0-1.0 | .43 | .43 | | | | 40-50 | 0-45 |15-65 | 35-60 |1.50-1.70|0.0015-0.06 |0.06-0.10| 6.0-8.9 | 0.0-1.0 | .43 | .43 | | | | 50-54 | --- | --- | --- |1.85-2.00|0.0000-0.2 | --- | --- | --- | --- | --- | | | | | | | | | | | | | | | | | GrIE: | | | | | | | | | | | | | | Grainola-------| 0-7 | 0-20 |40-73 | 27-35 |1.30-1.55| 0.2-0.6 |0.15-0.22| 3.0-5.9 | 0.5-1.0 | .37 | .37 | 3 | 7 | 38 | 7-12 | 0-45 | 0-60 | 35-60 |1.30-1.70| 0.06-0.2 |0.10-0.20| 6.0-8.9 | 0.0-0.5 | .37 | .37 | | | | 12-27 | 0-45 | 0-60 | 35-60 |1.30-1.70| 0.06-0.2 |0.12-0.20| 6.0-8.9 | 0.0-0.5 | .37 | .37 | | | | 27-38 | 0-45 | 0-60 | 35-60 |1.30-1.70| 0.06-0.2 |0.12-0.20| 6.0-8.9 | 0.0-0.5 | .37 | .37 | | | | 38-46 | --- | --- | --- |1.85-2.00|0.0000-0.2 | --- | --- | --- | --- | --- | | | | | | | | | | | | | | | | | Ironmound------| 0-7 |43-85 | 0-50 | 10-18 |1.30-1.60| 2-6 |0.11-0.15| 0.0-2.9 | 1.0-3.0 | .20 | .20 | 2 | 3 | 86 | 7-18 |20-85 | 0-53 | 10-27 |1.40-1.70| 0.6-2 |0.11-0.20| 0.0-2.9 | 0.0-0.5 | .32 | .32 | | | | 18-22 | --- | --- | --- |1.85-2.00|0.0000-0.2 | --- | --- | --- | --- | --- | | | | | | | | | | | | | | | | | GrLE: | | | | | | | | | | | | | | Grainola-------| 0-8 |20-45 |15-53 | 27-35 |1.30-1.55| 0.2-0.6 |0.15-0.22| 3.0-5.9 | 0.5-1.0 | .37 | .37 | 3 | 7 | 38 | 8-20 | 0-45 | 0-60 | 35-60 |1.30-1.70|0.0015-0.06 |0.10-0.20| 6.0-8.9 | 0.0-0.5 | .37 | .37 | | | | 20-27 | 0-45 | 0-60 | 35-60 |1.30-1.70|0.0015-0.06 |0.12-0.20| 6.0-8.9 | 0.0-0.5 | .37 | .37 | | | | 27-30 | --- | --- | --- |1.85-2.00|0.0000-0.2 | --- | --- | --- | --- | --- | | | | | | | | | | | | | | | | | Lucien---------| 0-7 |23-53 |27-50 | 15-25 |1.30-1.55| 2-6 |0.12-0.24| 0.0-2.9 | 1.0-3.0 | .32 | .32 | 2 | 5 | 56 | 7-12 |23-85 | 0-50 | 10-25 |1.30-1.55| 2-6 |0.12-0.24| 0.0-2.9 | 0.5-2.0 | .32 | .32 | | | | 12-15 | --- | --- | --- |1.85-2.00|0.0015-0.06 | --- | --- | --- | --- | --- | | | | | | | | | | | | | | | | | HaGD4: | | | | | | | | | | | | | | Harrah---------| 0-4 |43-85 | 0-50 | 10-18 |1.30-1.60| 2-6 |0.11-0.15| 0.0-2.9 | 0.5-2.0 | .24 | .24 | 4 | 3 | 86 | 4-22 |43-85 | 0-50 | 18-35 |1.40-1.70| 0.6-2 |0.11-0.17| 0.0-2.9 | 0.0-1.0 | .32 | .32 | | | | 22-42 |43-85 | 0-50 | 18-35 |1.40-1.70| 0.6-2 |0.11-0.17| 0.0-2.9 | 0.0-1.0 | .32 | .32 | | | | 42-54 |43-85 | 0-50 | 18-35 |1.40-1.70| 0.6-2 |0.11-0.17| 0.0-2.9 | 0.0-1.0 | .32 | .32 | | | | 54-72 |43-85 | 0-50 | 18-35 |1.40-1.70| 0.6-2 |0.10-0.17| 0.0-2.9 | 0.0-1.0 | .32 | .32 | | | | 72-80 |43-85 | 0-50 | 18-35 |1.40-1.70| 0.6-2 |0.10-0.17| 0.0-2.9 | 0.0-1.0 | .32 | .32 | | | | | | | | | | | | | | | | | Gullied land. | | | | | | | | | | | | | | | | | | | | | | | | | | | | HarC: | | | | | | | | | | | | | | Harrah---------| 0-7 |43-85 | 0-50 | 10-18 |1.30-1.60| 2-6 |0.11-0.15| 0.0-2.9 | 0.5-2.0 | .24 | .24 | 5 | 3 | 86 | 7-16 |43-90 | 0-50 | 5-18 |1.30-1.60| 2-6 |0.07-0.15| 0.0-2.9 | 0.5-2.0 | .20 | .20 | | | | 16-39 |43-85 | 0-50 | 18-35 |1.40-1.70| 0.6-2 |0.11-0.17| 0.0-2.9 | 0.0-1.0 | .32 | .32 | | | | 39-64 |43-85 | 0-50 | 18-35 |1.40-1.70| 0.6-2 |0.11-0.17| 0.0-2.9 | 0.0-1.0 | .32 | .32 | | | | 64-72 |43-85 | 0-50 | 18-35 |1.40-1.70| 0.6-2 |0.10-0.17| 0.0-2.9 | 0.0-1.0 | .32 | .32 | | | | 72-80 |43-85 | 0-50 | 18-35 |1.40-1.70| 0.6-2 |0.10-0.17| 0.0-2.9 | 0.0-1.0 | .32 | .32 | | | | | | | | | | | | | | | | |
Logan County, Oklahoma 425 Physical Properties of the Soils—Continued ___________________________________________________________________________________________________________________________________ | | | | | | | | | |Erosion factors|Wind |Wind _______________ Map symbol | Depth | Sand | Silt | Clay | Moist |Permeability |Available| Linear | Organic | | | |erodi-|erodi- and soil name | | | | | bulk | (Ksat) | water |extensi- | matter | K | Kf | T |bility|bility | | | | | density | |capacity | bility | | | | |group |index ___________________________________________________________________________________________________________________________________ | In | Pct | Pct | Pct | g/cc | In/hr | In/in | Pct | Pct | | | | | __ ___ ___ ___ ____ _____ _____ ___ ___ | | | | | | | | | | | | | | HarC2: | | | | | | | | | | | | | | Harrah---------| 0-8 |43-85 | 0-50 | 10-18 |1.30-1.60| 2-6 |0.11-0.15| 0.0-2.9 | 0.5-2.0 | .24 | .24 | 5 | 3 | 86 | 8-30 |43-85 | 0-50 | 18-35 |1.40-1.70| 0.6-2 |0.11-0.17| 0.0-2.9 | 0.0-1.0 | .32 | .32 | | | | 30-63 |43-85 | 0-50 | 18-35 |1.40-1.70| 0.6-2 |0.11-0.17| 0.0-2.9 | 0.0-1.0 | .32 | .32 | | | | 63-80 |43-85 | 0-50 | 18-35 |1.40-1.70| 0.6-2 |0.10-0.17| 0.0-2.9 | 0.0-1.0 | .32 | .32 | | | | | | | | | | | | | | | | | HarG: | | | | | | | | | | | | | | Harrah---------| 0-6 |43-85 | 0-50 | 10-18 |1.30-1.60| 2-6 |0.11-0.15| 0.0-2.9 | 0.5-2.0 | .24 | .24 | 5 | 3 | 86 | 6-12 |43-90 | 0-50 | 5-18 |1.30-1.60| 2-6 |0.07-0.15| 0.0-2.9 | 0.5-2.0 | .20 | .20 | | | | 12-32 |43-85 | 0-50 | 18-35 |1.40-1.70| 0.6-2 |0.11-0.17| 0.0-2.9 | 0.0-1.0 | .32 | .32 | | | | 32-54 |43-85 | 0-50 | 18-35 |1.40-1.70| 0.6-2 |0.11-0.17| 0.0-2.9 | 0.0-1.0 | .32 | .32 | | | | 54-72 |43-85 | 0-50 | 18-35 |1.40-1.70| 0.6-2 |0.10-0.17| 0.0-2.9 | 0.0-1.0 | .32 | .32 | | | | 72-80 |43-85 | 0-50 | 18-35 |1.40-1.70| 0.6-2 |0.10-0.17| 0.0-2.9 | 0.0-1.0 | .32 | .32 | | | | | | | | | | | | | | | | | HawB: | | | | | | | | | | | | | | Hawley---------| 0-10 |70-90 | 0-30 | 5-12 |1.35-1.50| 6-20 |0.06-0.10| 0.0-2.9 | 0.0-1.0 | .20 | .20 | 5 | 2 | 134 | 10-24 |32-85 | 0-50 | 7-18 |1.45-1.70| 0.6-2 |0.13-0.20| 0.0-2.9 | 0.0-0.5 | .20 | .20 | | | | 24-38 |32-85 | 0-50 | 7-18 |1.45-1.70| 0.6-2 |0.13-0.20| 0.0-2.9 | 0.0-0.5 | .20 | .20 | | | | 38-49 |32-85 | 0-50 | 7-18 |1.45-1.70| 0.6-2 |0.13-0.20| 0.0-2.9 | 0.0-0.5 | .20 | .20 | | | | 49-80 |20-85 | 0-53 | 5-30 |1.40-1.70| 0.6-6 |0.06-0.22| 0.0-2.9 | 0.0-0.5 | .24 | .24 | | | | | | | | | | | | | | | | | ICGD3: | | | | | | | | | | | | | | Ironmound------| 0-5 |23-53 |27-50 | 15-25 |1.30-1.55| 2-6 |0.15-0.20| 0.0-2.9 | 1.0-3.0 | .32 | .32 | 1 | 5 | 56 | 5-12 |23-85 | 0-50 | 10-27 |1.40-1.70| 0.6-2 |0.11-0.20| 0.0-2.9 | 0.0-0.5 | .32 | .32 | | | | 12-20 | --- | --- | --- |1.85-2.00|0.0000-0.2 | --- | --- | --- | --- | --- | | | | | | | | | | | | | | | | | Coyle----------| 0-8 |23-53 |27-50 | 15-26 |1.30-1.55| 0.6-2 |0.15-0.20| 0.0-2.9 | 1.0-3.0 | .37 | .37 | 2 | 6 | 48 | 8-21 |20-80 | 0-53 | 20-35 |1.40-1.70| 0.6-2 |0.11-0.20| 0.0-2.9 | 0.5-1.0 | .32 | .32 | | | | 21-35 |20-80 | 0-53 | 18-35 |1.40-1.70| 0.6-2 |0.07-0.20| 0.0-2.9 | 0.0-0.5 | .28 | .32 | | | | 35-40 | --- | --- | --- |1.85-2.00|0.0000-0.2 | --- | --- | --- | --- | --- | | | | | | | | | | | | | | | | | Grainola-------| 0-4 |20-45 |15-53 | 27-35 |1.30-1.60| 0.2-0.6 |0.15-0.22| 3.0-5.9 | 0.5-1.0 | .37 | .37 | 2 | 7 | 38 | 4-22 | 0-45 | 0-65 | 35-60 |1.35-1.65| 0.06-0.2 |0.10-0.20| 6.0-8.9 | 0.0-0.5 | .37 | .37 | | | | 22-34 | 0-45 | 0-65 | 35-60 |1.35-1.65| 0.06-0.2 |0.02-0.20| 6.0-8.9 | 0.0-0.5 | .37 | .37 | | | | 34-40 | --- | --- | --- |1.85-2.00|0.0000-0.2 | --- | --- | --- | --- | --- | | | | | | | | | | | | | | | | | IrCE: | | | | | | | | | | | | | | Ironmound------| 0-6 |43-85 | 0-50 | 10-18 |1.30-1.60| 2-6 |0.11-0.15| 0.0-2.9 | 1.0-3.0 | .20 | .20 | 2 | 3 | 86 | 6-15 |23-85 | 0-50 | 10-27 |1.40-1.70| 0.6-2 |0.11-0.20| 0.0-2.9 | 0.0-0.5 | .32 | .32 | | | | 15-20 | --- | --- | --- |1.85-2.00|0.0000-0.2 | --- | --- | --- | --- | --- | | | | | | | | | | | | | | | | | Coyle----------| 0-8 |23-53 |27-50 | 15-25 |1.30-1.55| 0.6-2 |0.15-0.20| 0.0-2.9 | 1.0-3.0 | .32 | .32 | 3 | 3 | 86 | 8-16 |20-80 | 0-53 | 20-35 |1.40-1.70| 0.6-2 |0.11-0.20| 0.0-2.9 | 0.5-1.0 | .32 | .32 | | | | 16-26 |20-80 | 0-53 | 20-35 |1.40-1.70| 0.6-2 |0.11-0.20| 0.0-2.9 | 0.5-1.0 | .32 | .32 | | | | 26-40 | --- | --- | --- |1.85-2.00|0.0000-0.2 | --- | --- | --- | --- | --- | | | | | | | | | | | | | | | | |
426 Soil Survey Physical Properties of the Soils—Continued ___________________________________________________________________________________________________________________________________ | | | | | | | | | |Erosion factors|Wind |Wind _______________ Map symbol | Depth | Sand | Silt | Clay | Moist |Permeability |Available| Linear | Organic | | | |erodi-|erodi- and soil name | | | | | bulk | (Ksat) | water |extensi- | matter | K | Kf | T |bility|bility | | | | | density | |capacity | bility | | | | |group |index ___________________________________________________________________________________________________________________________________ | In | Pct | Pct | Pct | g/cc | In/hr | In/in | Pct | Pct | | | | | __ ___ ___ ___ ____ _____ _____ ___ ___ | | | | | | | | | | | | | | IroC2: | | | | | | | | | | | | | | Ironmound------| 0-7 |23-53 |27-50 | 15-25 |1.30-1.55| 0.6-2 |0.15-0.20| 0.0-2.9 | 1.0-3.0 | .32 | .32 | 2 | 5 | 56 | 7-16 |23-85 | 0-50 | 10-27 |1.40-1.70| 0.6-2 |0.11-0.20| 0.0-2.9 | 0.0-0.5 | .32 | .32 | | | | 16-40 | --- | --- | --- |1.85-2.00|0.0000-0.2 | --- | --- | --- | --- | --- | | | | | | | | | | | | | | | | | KgfB: | | | | | | | | | | | | | | Kingfisher-----| 0-10 | 0-50 |50-88 | 15-27 |1.30-1.55| 0.6-2 |0.16-0.24| 0.0-2.9 | 1.0-3.0 | .37 | .37 | 3 | 5 | 56 | 10-22 | 0-45 |15-73 | 27-35 |1.45-1.70| 0.2-0.6 |0.15-0.22| 3.0-5.9 | 0.0-0.5 | .32 | .32 | | | | 22-32 | 0-45 |15-73 | 27-42 |1.45-1.70| 0.2-0.6 |0.14-0.22| 3.0-5.9 | 0.0-0.5 | .32 | .32 | | | | 32-38 | 0-45 |15-73 | 27-42 |1.45-1.70| 0.2-0.6 |0.14-0.22| 3.0-5.9 | 0.0-0.5 | .32 | .32 | | | | 38-40 | --- | --- | --- |1.85-2.00|0.0000-0.2 | --- | --- | --- | --- | --- | | | | | | | | | | | | | | | | | KinC2: | | | | | | | | | | | | | | Kingfisher-----| 0-8 |23-53 |27-80 | 15-27 |1.30-1.55| 0.6-2 |0.15-0.20| 0.0-2.9 | 1.0-3.0 | .37 | .37 | 3 | 5 | 56 | 8-13 | 0-45 |15-73 | 27-35 |1.45-1.70| 0.2-0.6 |0.15-0.22| 3.0-5.9 | 0.0-0.5 | .32 | .32 | | | | 13-20 | 0-45 |15-73 | 27-35 |1.45-1.70| 0.2-0.6 |0.15-0.22| 3.0-5.9 | 0.0-0.5 | .32 | .32 | | | | 20-27 | 0-45 |15-73 | 27-42 |1.45-1.70| 0.2-0.6 |0.14-0.22| 3.0-5.9 | 0.0-0.5 | .32 | .32 | | | | 27-40 | --- | --- | --- |1.85-2.00|0.0000-0.2 | --- | --- | --- | --- | --- | | | | | | | | | | | | | | | | | KonB: | | | | | | | | | | | | | | Konawa---------| 0-7 |70-90 | 0-30 | 2-10 |1.45-1.65| 2-6 |0.07-0.11| 0.0-2.9 | 0.5-1.0 | .20 | .20 | 5 | 2 | 134 | 7-12 |43-100| 0-50 | 2-15 |1.40-1.75| 0.6-2 |0.05-0.19| 0.0-2.9 | 0.3-1.0 | .32 | .32 | | | | 12-25 |45-82 | 0-27 | 18-30 |1.45-1.70| 0.6-6 |0.13-0.19| 0.0-2.9 | 0.1-0.7 | .24 | .24 | | | | 25-38 |45-82 | 0-27 | 18-30 |1.45-1.70| 0.6-6 |0.13-0.19| 0.0-2.9 | 0.1-0.7 | .24 | .24 | | | | 38-52 |45-82 | 0-27 | 12-30 |1.45-1.70| 0.6-6 |0.13-0.19| 0.0-2.9 | 0.1-0.7 | .24 | .24 | | | | 52-80 |45-90 | 0-30 | 7-30 |1.40-1.70| 2-6 |0.07-0.19| 0.0-2.9 | 0.1-0.7 | .20 | .20 | | | | | | | | | | | | | | | | | KonD2: | | | | | | | | | | | | | | Konawa---------| 0-9 |70-90 | 0-30 | 2-10 |1.45-1.65| 2-6 |0.07-0.11| 0.0-2.9 | 0.5-1.0 | .20 | .20 | 5 | 2 | 134 | 9-23 |52-80 | 0-27 | 18-30 |1.45-1.70| 0.6-6 |0.13-0.19| 0.0-2.9 | 0.1-0.7 | .24 | .24 | | | | 23-38 |52-80 | 0-27 | 18-30 |1.45-1.70| 0.6-6 |0.13-0.19| 0.0-2.9 | 0.1-0.7 | .24 | .24 | | | | 38-49 |52-80 | 0-27 | 18-30 |1.45-1.70| 0.6-6 |0.13-0.19| 0.0-2.9 | 0.1-0.7 | .24 | .24 | | | | 49-70 |45-90 | 0-30 | 7-30 |1.40-1.70| 2-6 |0.07-0.19| 0.0-2.9 | 0.1-0.7 | .20 | .20 | | | | 70-80 |45-90 | 0-30 | 7-30 |1.40-1.70| 2-6 |0.07-0.19| 0.0-2.9 | 0.1-0.7 | .20 | .20 | | | | | | | | | | | | | | | | | KrdA: | | | | | | | | | | | | | | Kirkland-------| 0-8 | 0-32 |50-88 | 13-26 |1.30-1.50| 0.6-2 |0.16-0.24| 0.0-2.9 | 1.0-3.0 | .49 | .49 | 5 | 5 | 56 | 8-19 | 0-45 | 0-60 | 40-60 |1.35-1.60|0.0015-0.06 |0.10-0.14| 6.0-8.9 | 1.0-2.0 | .37 | .37 | | | | 19-41 | 0-45 | 0-60 | 40-60 |1.35-1.60|0.0015-0.06 |0.10-0.14| 6.0-8.9 | 1.0-2.0 | .37 | .37 | | | | 41-59 | 0-45 | 0-60 | 40-60 |1.35-1.60|0.0015-0.06 |0.10-0.14| 6.0-8.9 | 1.0-2.0 | .37 | .37 | | | | 59-85 | 0-45 | 0-60 | 35-60 |1.30-1.65|0.0015-0.06 |0.10-0.18| 9.0-25.0| 0.5-1.0 | .32 | .32 | | | | 85-96 | --- | --- | --- |1.85-2.00|0.0000-0.2 | --- | --- | --- | --- | --- | | | | | | | | | | | | | | | | |
Logan County, Oklahoma 427 Physical Properties of the Soils—Continued ___________________________________________________________________________________________________________________________________ | | | | | | | | | |Erosion factors|Wind |Wind _______________ Map symbol | Depth | Sand | Silt | Clay | Moist |Permeability |Available| Linear | Organic | | | |erodi-|erodi- and soil name | | | | | bulk | (Ksat) | water |extensi- | matter | K | Kf | T |bility|bility | | | | | density | |capacity | bility | | | | |group |index ___________________________________________________________________________________________________________________________________ | In | Pct | Pct | Pct | g/cc | In/hr | In/in | Pct | Pct | | | | | __ ___ ___ ___ ____ _____ _____ ___ ___ | | | | | | | | | | | | | | KrkB: | | | | | | | | | | | | | | Kirkland-------| 0-9 | 0-20 |40-73 | 27-35 |1.30-1.60| 0.2-0.6 |0.18-0.22| 3.0-5.9 | 1.0-3.0 | .43 | .43 | 5 | 7 | 38 | 9-34 | 0-45 | 0-60 | 40-60 |1.35-1.60|0.0015-0.06 |0.10-0.14| 6.0-8.9 | 1.0-2.0 | .37 | .37 | | | | 34-48 | 0-45 | 0-60 | 40-60 |1.35-1.60|0.0015-0.06 |0.10-0.14| 6.0-8.9 | 1.0-2.0 | .37 | .37 | | | | 48-57 | 0-45 | 0-60 | 40-60 |1.35-1.60|0.0015-0.06 |0.10-0.14| 6.0-8.9 | 1.0-2.0 | .37 | .37 | | | | 57-82 | 0-45 | 0-60 | 35-60 |1.30-1.65|0.0015-0.06 |0.10-0.18| 9.0-25.0| 0.5-1.0 | .32 | .32 | | | | 82-98 | --- | --- | --- |1.85-2.00|0.0000-0.2 | --- | --- | --- | --- | --- | | | | | | | | | | | | | | | | | LarA: | | | | | | | | | | | | | | Lawrie---------| 0-8 | 0-50 |50-88 | 15-26 |1.30-1.55| 0.6-2 |0.15-0.24| 0.0-2.9 | 1.0-3.0 | .37 | .37 | 5 | 5 | 56 | 8-20 | 0-50 |50-88 | 15-26 |1.30-1.55| 0.6-2 |0.15-0.24| 0.0-2.9 | 1.0-3.0 | .37 | .37 | | | | 20-27 | 0-32 |40-82 | 18-35 |1.40-1.70| 0.6-2 |0.15-0.24| 3.0-5.9 | 1.0-3.0 | .37 | .37 | | | | 27-38 | 0-32 |40-82 | 18-35 |1.40-1.70| 0.6-2 |0.15-0.24| 3.0-5.9 | 1.0-3.0 | .37 | .37 | | | | 38-45 | 0-32 |40-82 | 18-35 |1.40-1.70| 0.6-2 |0.15-0.24| 3.0-5.9 | 1.0-3.0 | .37 | .37 | | | | 45-80 | 0-53 |15-65 | 18-40 |1.45-1.70| 0.6-2 |0.15-0.22| 3.0-5.9 | 0.0-1.0 | .37 | .37 | | | | | | | | | | | | | | | | | LawA: | | | | | | | | | | | | | | Lawrie---------| 0-10 |23-53 |27-50 | 15-26 |1.30-1.55| 0.6-2 |0.15-0.24| 0.0-2.9 | 1.0-3.0 | .37 | .37 | 5 | 5 | 56 | 10-26 | 0-32 |40-82 | 18-35 |1.40-1.70| 0.6-2 |0.15-0.24| 3.0-5.9 | 1.0-3.0 | .37 | .37 | | | | 26-34 | 0-32 |40-82 | 18-35 |1.40-1.70| 0.6-2 |0.15-0.24| 3.0-5.9 | 1.0-3.0 | .37 | .37 | | | | 34-51 | 0-53 |15-82 | 18-35 |1.45-1.70| 0.6-2 |0.15-0.22| 3.0-5.9 | 0.0-1.0 | .37 | .37 | | | | 51-72 | 0-53 |15-82 | 18-35 |1.40-1.70| 0.6-2 |0.15-0.24| 3.0-5.9 | 0.5-2.0 | .37 | .37 | | | | 72-90 | 0-80 | 0-82 | 18-40 |1.45-1.70| 0.6-2 |0.15-0.22| 3.0-5.9 | 0.0-1.0 | .37 | .37 | | | | | | | | | | | | | | | | | LerA: | | | | | | | | | | | | | | Lebron---------| 0-5 | 0-45 | 0-40 | 40-60 |1.25-1.45|0.0015-0.06 |0.12-0.18| 6.0-8.9 | 0.5-3.0 | .37 | .37 | 4 | 4 | 86 | 5-14 | 0-22 | 0-82 | 35-60 |1.30-1.70|0.0015-0.06 |0.12-0.22| 6.0-8.9 | 0.0-0.5 | .43 | .43 | | | | 14-28 | 0-45 | 0-73 | 8-45 |1.50-1.70|0.0015-2 |0.12-0.20| 3.0-6.0 | 0.0-0.5 | .43 | .43 | | | | 28-80 |70-100| 0-30 | 2-18 |1.50-1.70| 6-20 |0.05-0.11| 0.0-2.9 | 0.0-0.5 | .17 | .17 | | | | | | | | | | | | | | | | | LitB: | | | | | | | | | | | | | | Littleaxe------| 0-5 |43-85 | 0-50 | 8-18 |1.30-1.60| 2-6 |0.11-0.15| 0.0-2.9 | 0.5-2.0 | .24 | .24 | 4 | 3 | 86 | 5-9 |43-90 | 0-50 | 3-18 |1.30-1.60| 2-6 |0.07-0.15| 0.0-2.9 | 0.0-0.5 | .20 | .20 | | | | 9-30 |45-80 | 0-27 | 18-35 |1.50-1.70| 0.6-2 |0.11-0.17| 0.0-2.9 | 0.0-1.0 | .32 | .32 | | | | 30-45 |45-80 | 0-27 | 18-35 |1.50-1.70| 0.6-2 |0.11-0.17| 0.0-2.9 | 0.0-1.0 | .32 | .32 | | | | 45-58 |45-80 | 0-27 | 14-30 |1.50-1.70| 0.6-6 |0.11-0.17| 0.0-2.9 | 0.0-1.0 | .32 | .32 | | | | 58-60 | --- | --- | --- |1.85-2.00| 0.2-2 | --- | --- | --- | --- | --- | | | | | | | | | | | | | | | | | LitC2: | | | | | | | | | | | | | | Littleaxe------| 0-6 |43-85 | 0-50 | 8-18 |1.30-1.60| 2-6 |0.11-0.15| 0.0-2.9 | 0.5-2.0 | .24 | .24 | 4 | 3 | 86 | 6-17 |45-80 | 0-27 | 18-35 |1.50-1.70| 0.6-2 |0.11-0.17| 0.0-2.9 | 0.0-1.0 | .32 | .32 | | | | 17-41 |45-80 | 0-27 | 18-35 |1.50-1.70| 0.6-2 |0.11-0.17| 0.0-2.9 | 0.0-1.0 | .32 | .32 | | | | 41-52 |45-80 | 0-27 | 14-30 |1.50-1.70| 0.6-6 |0.11-0.17| 0.0-2.9 | 0.0-1.0 | .32 | .32 | | | | 52-60 | --- | --- | --- |1.85-2.00| 0.2-2 | --- | --- | --- | --- | --- | | | | | | | | | | | | | | | | |
428 Soil Survey Physical Properties of the Soils—Continued ___________________________________________________________________________________________________________________________________ | | | | | | | | | |Erosion factors|Wind |Wind _______________ Map symbol | Depth | Sand | Silt | Clay | Moist |Permeability |Available| Linear | Organic | | | |erodi-|erodi- and soil name | | | | | bulk | (Ksat) | water |extensi- | matter | K | Kf | T |bility|bility | | | | | density | |capacity | bility | | | | |group |index ___________________________________________________________________________________________________________________________________ | In | Pct | Pct | Pct | g/cc | In/hr | In/in | Pct | Pct | | | | | __ ___ ___ ___ ____ _____ _____ ___ ___ | | | | | | | | | | | | | | M-W. | | | | | | | | | | | | | | Miscellaneous | | | | | | | | | | | | | | water | | | | | | | | | | | | | | | | | | | | | | | | | | | | MaID: | | | | | | | | | | | | | | Masham---------| 0-4 | 0-20 |40-73 | 35-39 |1.30-1.55| 0.06-0.2 |0.15-0.22| 3.0-5.9 | 0.5-2.0 | .43 | .43 | 2 | 4L | 86 | 4-16 | 0-45 | 0-60 | 35-60 |1.30-1.75|0.0015-0.06 |0.10-0.22| 6.0-8.9 | 0.0-0.5 | .37 | .37 | | | | 16-35 | --- | --- | --- |1.85-2.00|0.0000-0.2 | --- | --- | --- | --- | --- | | | | | | | | | | | | | | | | | Ironmound------| 0-6 |23-53 |27-50 | 15-25 |1.30-1.55| 0.6-2 |0.15-0.20| 0.0-2.9 | 1.0-3.0 | .32 | .32 | 2 | 5 | 56 | 6-11 |23-85 | 0-50 | 10-27 |1.40-1.70| 0.6-2 |0.11-0.20| 0.0-2.9 | 0.0-0.5 | .32 | .32 | | | | 11-36 | --- | --- | --- |1.85-2.00|0.0000-0.2 | --- | --- | --- | --- | --- | | | | | | | | | | | | | | | | | MaIG: | | | | | | | | | | | | | | Masham---------| 0-4 |20-45 |15-45 | 35-40 |1.30-1.55| 0.06-0.2 |0.15-0.20| 3.0-5.9 | 0.5-2.0 | .43 | .43 | 2 | 4L | 86 | 4-12 | 0-45 | 0-65 | 35-60 |1.30-1.75|0.0015-0.06 |0.10-0.22| 6.0-8.9 | 0.0-0.5 | .37 | .37 | | | | 12-20 | --- | --- | --- |1.85-2.00|0.0000-0.2 | --- | --- | --- | --- | --- | | | | | | | | | | | | | | | | | Ironmound------| 0-6 |23-85 | 0-50 | 15-25 |1.30-1.55| 0.6-2 |0.15-0.20| 0.0-2.9 | 1.0-3.0 | .32 | .32 | 2 | 5 | 56 | 6-15 |23-80 | 0-50 | 10-27 |1.40-1.70| 0.6-2 |0.11-0.20| 0.0-2.9 | 0.0-0.5 | .32 | .32 | | | | 15-20 | --- | --- | --- |1.85-2.00|0.0000-0.2 | --- | --- | --- | --- | --- | | | | | | | | | | | | | | | | | MinB: | | | | | | | | | | | | | | Minco----------| 0-11 |43-85 | 0-50 | 8-18 |1.35-1.60| 0.6-2 |0.13-0.24| 0.0-2.9 | 1.0-3.0 | .37 | .37 | 5 | 3 | 86 | 11-26 | 0-85 | 0-88 | 8-18 |1.35-1.60| 0.6-2 |0.13-0.24| 0.0-2.9 | 1.0-3.0 | .37 | .37 | | | | 26-37 | 0-85 | 0-88 | 8-18 |1.35-1.60| 0.6-2 |0.13-0.24| 0.0-2.9 | 1.0-3.0 | .37 | .37 | | | | 37-58 | 0-85 | 0-88 | 8-18 |1.35-1.60| 0.6-2 |0.13-0.24| 0.0-2.9 | 1.0-3.0 | .37 | .37 | | | | 58-80 | 0-85 | 0-88 | 8-18 |1.35-1.60| 0.6-2 |0.13-0.24| 0.0-2.9 | 1.0-3.0 | .37 | .37 | | | | | | | | | | | | | | | | | MinC: | | | | | | | | | | | | | | Minco----------| 0-10 |43-85 | 0-50 | 8-18 |1.35-1.60| 0.6-2 |0.13-0.24| 0.0-2.9 | 1.0-3.0 | .37 | .37 | 5 | 3 | 86 | 10-29 | 0-85 | 0-88 | 8-18 |1.35-1.60| 0.6-2 |0.13-0.24| 0.0-2.9 | 1.0-3.0 | .37 | .37 | | | | 29-40 | 0-85 | 0-88 | 8-18 |1.35-1.60| 0.6-2 |0.13-0.24| 0.0-2.9 | 1.0-3.0 | .37 | .37 | | | | 40-54 | 0-85 | 0-88 | 8-18 |1.35-1.60| 0.6-2 |0.13-0.24| 0.0-2.9 | 1.0-3.0 | .37 | .37 | | | | 54-80 | 0-85 | 0-88 | 8-18 |1.35-1.60| 0.6-2 |0.13-0.24| 0.0-2.9 | 1.0-3.0 | .37 | .37 | | | | | | | | | | | | | | | | | MinD: | | | | | | | | | | | | | | Minco----------| 0-12 |43-85 | 0-50 | 8-18 |1.35-1.60| 0.6-2 |0.13-0.24| 0.0-2.9 | 1.0-3.0 | .37 | .37 | 5 | 3 | 86 | 12-26 | 0-85 | 0-88 | 8-18 |1.35-1.60| 0.6-2 |0.13-0.24| 0.0-2.9 | 1.0-3.0 | .37 | .37 | | | | 26-47 | 0-85 | 0-88 | 8-18 |1.35-1.60| 0.6-2 |0.13-0.24| 0.0-2.9 | 1.0-3.0 | .37 | .37 | | | | 47-67 | 0-85 | 0-88 | 8-18 |1.35-1.60| 0.6-2 |0.13-0.24| 0.0-2.9 | 1.0-3.0 | .37 | .37 | | | | 67-80 | 0-85 | 0-88 | 8-18 |1.35-1.60| 0.6-2 |0.13-0.24| 0.0-2.9 | 1.0-3.0 | .37 | .37 | | | | | | | | | | | | | | | | |
Logan County, Oklahoma 429 Physical Properties of the Soils—Continued ___________________________________________________________________________________________________________________________________ | | | | | | | | | |Erosion factors|Wind |Wind _______________ Map symbol | Depth | Sand | Silt | Clay | Moist |Permeability |Available| Linear | Organic | | | |erodi-|erodi- and soil name | | | | | bulk | (Ksat) | water |extensi- | matter | K | Kf | T |bility|bility | | | | | density | |capacity | bility | | | | |group |index ___________________________________________________________________________________________________________________________________ | In | Pct | Pct | Pct | g/cc | In/hr | In/in | Pct | Pct | | | | | __ ___ ___ ___ ____ _____ _____ ___ ___ | | | | | | | | | | | | | | MinF: | | | | | | | | | | | | | | Minco----------| 0-9 |43-85 | 0-50 | 8-18 |1.35-1.60| 0.6-2 |0.13-0.24| 0.0-2.9 | 1.0-3.0 | .37 | .37 | 5 | 3 | 86 | 9-19 | 0-85 | 0-88 | 8-18 |1.35-1.60| 0.6-2 |0.13-0.24| 0.0-2.9 | 1.0-3.0 | .37 | .37 | | | | 19-39 | 0-85 | 0-88 | 8-18 |1.35-1.60| 0.6-2 |0.13-0.24| 0.0-2.9 | 1.0-3.0 | .37 | .37 | | | | 39-64 | 0-85 | 0-88 | 8-18 |1.35-1.60| 0.6-2 |0.13-0.24| 0.0-2.9 | 1.0-3.0 | .37 | .37 | | | | 64-70 | 0-85 | 0-88 | 8-18 |1.35-1.60| 0.6-2 |0.13-0.24| 0.0-2.9 | 1.0-3.0 | .37 | .37 | | | | 70-80 | 0-85 | 0-88 | 8-18 |1.35-1.60| 0.6-2 |0.13-0.24| 0.0-2.9 | 1.0-3.0 | .37 | .37 | | | | | | | | | | | | | | | | | MllA: | | | | | | | | | | | | | | Miller---------| 0-9 | 0-20 |40-60 | 40-50 |1.25-1.45|0.0015-0.06 |0.12-0.18| 6.0-8.9 | 1.0-3.0 | .37 | .37 | 5 | 4 | 86 | 9-15 | 0-45 | 0-60 | 35-60 |1.35-1.65|0.0015-0.06 |0.12-0.19| 6.0-8.9 | 0.5-2.0 | .37 | .37 | | | | 15-27 | 0-45 | 0-60 | 35-60 |1.35-1.65|0.0015-0.06 |0.12-0.19| 6.0-8.9 | 0.5-2.0 | .37 | .37 | | | | 27-41 | 0-45 | 0-60 | 35-60 |1.35-1.65| 0.06-0.2 |0.12-0.19| 6.0-8.9 | 0.5-1.0 | .37 | .37 | | | | 41-55 | 0-45 | 0-60 | 35-60 |1.35-1.65| 0.06-0.2 |0.12-0.19| 6.0-8.9 | 0.5-1.0 | .37 | .37 | | | | 55-80 | 0-45 | 0-60 | 25-50 |1.35-1.65| 0.06-0.2 |0.12-0.19| 6.0-8.9 | 0.5-1.0 | .37 | .37 | | | | | | | | | | | | | | | | | MulC: | | | | | | | | | | | | | | Mulhall--------| 0-11 |23-53 |27-50 | 15-26 |1.30-1.55| 0.6-2 |0.15-0.20| 0.0-2.9 | 1.0-3.0 | .37 | .37 | 5 | 6 | 48 | 11-17 |20-53 | 5-53 | 18-30 |1.45-1.70| 0.6-2 |0.15-0.20| 0.0-2.9 | 0.5-1.0 | .37 | .37 | | | | 17-32 |30-80 | 0-35 | 20-35 |1.45-1.70| 0.6-2 |0.10-0.20| 0.0-2.9 | 0.0-0.5 | .32 | .32 | | | | 32-40 |30-80 | 0-35 | 20-35 |1.45-1.70| 0.6-2 |0.10-0.20| 0.0-2.9 | 0.0-0.5 | .32 | .32 | | | | 40-70 |30-80 | 0-35 | 20-35 |1.45-1.70| 0.6-2 |0.10-0.20| 0.0-2.9 | 0.0-0.5 | .32 | .32 | | | | 70-82 | --- | --- | --- |1.85-2.00|0.0000-0.2 | --- | --- | --- | --- | --- | | | | | | | | | | | | | | | | | MulC2: | | | | | | | | | | | | | | Mulhall--------| 0-10 |23-53 |27-50 | 15-26 |1.30-1.55| 0.6-2 |0.15-0.20| 0.0-2.9 | 1.0-3.0 | .37 | .37 | 5 | 6 | 48 | 10-22 |30-80 | 0-35 | 20-35 |1.45-1.70| 0.6-2 |0.10-0.20| 0.0-2.9 | 0.0-0.5 | .32 | .32 | | | | 22-36 |30-80 | 0-35 | 20-35 |1.45-1.70| 0.6-2 |0.10-0.20| 0.0-2.9 | 0.0-0.5 | .32 | .32 | | | | 36-54 |30-80 | 0-35 | 20-35 |1.45-1.70| 0.6-2 |0.10-0.20| 0.0-2.9 | 0.0-0.5 | .32 | .32 | | | | 54-80 |30-80 | 0-35 | 20-35 |1.45-1.70| 0.6-2 |0.10-0.20| 0.0-2.9 | 0.0-0.5 | .32 | .32 | | | | 80-90 | --- | --- | --- |1.85-2.00|0.0000-0.2 | --- | --- | --- | --- | --- | | | | | | | | | | | | | | | | | NavA: | | | | | | | | | | | | | | Navina---------| 0-8 |43-85 | 0-50 | 8-20 |1.40-1.65| 0.6-2 |0.13-0.19| 0.0-2.9 | 1.0-3.0 | .24 | .24 | 5 | 3 | 86 | 8-14 |20-80 | 0-53 | 15-35 |1.30-1.70| 0.6-2 |0.11-0.20| 0.0-2.9 | 1.0-2.0 | .37 | .37 | | | | 14-33 |20-80 | 0-53 | 18-35 |1.30-1.70| 0.6-2 |0.11-0.20| 0.0-2.9 | 0.5-1.0 | .32 | .32 | | | | 33-41 |20-80 | 0-53 | 18-35 |1.30-1.70| 0.6-2 |0.13-0.20| 0.0-2.9 | 0.5-1.0 | .32 | .32 | | | | 41-71 |23-80 | 0-50 | 10-35 |1.40-1.70| 0.6-2 |0.13-0.20| 0.0-2.9 | 0.5-1.0 | .24 | .24 | | | | 71-80 |32-90 | 0-50 | 2-15 |1.35-1.70| 2-6 |0.07-0.20| 0.0-2.9 | 0.5-1.0 | .24 | .24 | | | | | | | | | | | | | | | | | NavB: | | | | | | | | | | | | | | Navina---------| 0-7 |43-85 | 0-50 | 8-20 |1.40-1.65| 0.6-2 |0.13-0.19| 0.0-2.9 | 1.0-3.0 | .24 | .24 | 5 | 3 | 86 | 7-16 |15-80 | 0-53 | 15-35 |1.30-1.70| 0.6-2 |0.11-0.20| 0.0-2.9 | 1.0-3.0 | .37 | .37 | | | | 16-37 |20-80 | 0-53 | 18-35 |1.30-1.70| 0.6-2 |0.13-0.20| 0.0-2.9 | 0.5-1.0 | .32 | .32 | | | | 37-60 |20-80 | 0-53 | 15-35 |1.30-1.70| 0.6-2 |0.13-0.20| 0.0-2.9 | 0.5-1.0 | .32 | .32 | | | | 60-71 |23-80 | 0-50 | 10-35 |1.40-1.70| 0.6-2 |0.13-0.20| 0.0-2.9 | 0.5-1.0 | .24 | .24 | | | | 71-80 |32-90 | 0-50 | 2-15 |1.35-1.70| 2-6 |0.07-0.20| 0.0-2.9 | 0.5-1.0 | .24 | .24 | | |
430 Soil Survey Physical Properties of the Soils—Continued ___________________________________________________________________________________________________________________________________ | | | | | | | | | |Erosion factors|Wind |Wind _______________ Map symbol | Depth | Sand | Silt | Clay | Moist |Permeability |Available| Linear | Organic | | | |erodi-|erodi- and soil name | | | | | bulk | (Ksat) | water |extensi- | matter | K | Kf | T |bility|bility | | | | | density | |capacity | bility | | | | |group |index ___________________________________________________________________________________________________________________________________ | In | Pct | Pct | Pct | g/cc | In/hr | In/in | Pct | Pct | | | | | __ ___ ___ ___ ____ _____ _____ ___ ___ | | | | | | | | | | | | | | NeGD4: | | | | | | | | | | | | | | Newalla--------| 0-6 |43-85 | 0-50 | 7-17 |1.40-1.65| 0.6-2 |0.13-0.19| 0.0-2.9 | 0.5-3.0 | .37 | .37 | 4 | 3 | 86 | 6-11 |20-80 | 0-53 | 20-35 |1.30-1.70| 0.6-2 |0.14-0.20| 0.0-2.9 | 0.5-1.0 | .43 | .43 | | | | 11-28 | 0-45 | 0-60 | 40-60 |1.30-1.60|0.0015-0.06 |0.12-0.18| 6.0-8.9 | 0.0-0.5 | .37 | .37 | | | | 28-46 | 0-65 | 0-60 | 40-60 |1.30-1.65|0.0015-0.06 |0.04-0.18| 6.0-8.9 | 0.0-0.5 | .37 | .37 | | | | 46-60 | --- | --- | --- |1.85-2.00|0.0015-0.06 | --- | --- | --- | --- | --- | | | | | | | | | | | | | | | | | Gullied land. | | | | | | | | | | | | | | | | | | | | | | | | | | | | NewB: | | | | | | | | | | | | | | Newalla--------| 0-6 |43-85 | 0-50 | 7-17 |1.40-1.65| 0.6-2 |0.13-0.19| 0.0-2.9 | 0.5-3.0 | .37 | .37 | 4 | 3 | 86 | 6-12 |43-85 | 0-50 | 7-17 |1.40-1.65| 0.6-2 |0.13-0.19| 0.0-2.9 | 0.5-3.0 | .37 | .37 | | | | 12-19 |20-80 | 0-53 | 20-35 |1.30-1.70| 0.6-2 |0.14-0.20| 0.0-2.9 | 0.5-1.0 | .43 | .43 | | | | 19-41 | 0-45 | 0-60 | 40-60 |1.30-1.60|0.0015-0.06 |0.12-0.18| 6.0-8.9 | 0.0-0.5 | .37 | .37 | | | | 41-46 | 0-65 | 0-60 | 40-60 |1.30-1.65|0.0015-0.06 |0.04-0.18| 6.0-8.9 | 0.0-0.5 | .37 | .37 | | | | 46-52 | --- | --- | --- |1.85-2.00|0.0015-0.06 | --- | --- | --- | --- | --- | | | | | | | | | | | | | | | | | NorA: | | | | | | | | | | | | | | Norge----------| 0-11 | 0-50 |50-88 | 15-26 |1.30-1.50| 0.6-2 |0.15-0.24| 0.0-2.9 | 1.0-3.0 | .37 | .37 | 5 | 6 | 48 | 11-16 | 0-50 |50-88 | 15-26 |1.30-1.50| 0.6-2 |0.15-0.24| 0.0-2.9 | 1.0-3.0 | .37 | .37 | | | | 16-23 | 0-45 |15-82 | 18-35 |1.40-1.70| 0.2-2 |0.15-0.24| 3.0-5.9 | 0.5-2.0 | .32 | .32 | | | | 23-43 | 0-45 |15-73 | 27-35 |1.45-1.70| 0.2-0.6 |0.15-0.22| 3.0-5.9 | 0.5-1.0 | .32 | .32 | | | | 43-61 | 0-45 |15-73 | 27-35 |1.45-1.70| 0.2-0.6 |0.15-0.22| 3.0-5.9 | 0.5-1.0 | .32 | .32 | | | | 61-80 | 0-45 |15-73 | 27-50 |1.45-1.70| 0.2-0.6 |0.15-0.22| 3.0-5.9 | 0.5-1.0 | .32 | .32 | | | | | | | | | | | | | | | | | NorB: | | | | | | | | | | | | | | Norge----------| 0-12 | 0-50 |50-88 | 15-26 |1.30-1.50| 0.6-2 |0.15-0.24| 0.0-2.9 | 1.0-3.0 | .37 | .37 | 5 | 6 | 48 | 12-18 | 0-45 |15-82 | 18-35 |1.40-1.70| 0.2-2 |0.15-0.24| 3.0-5.9 | 0.5-2.0 | .32 | .32 | | | | 18-24 | 0-45 |15-73 | 27-35 |1.45-1.70| 0.2-0.6 |0.15-0.22| 3.0-5.9 | 0.5-1.0 | .32 | .32 | | | | 24-45 | 0-45 |15-73 | 27-35 |1.45-1.70| 0.2-0.6 |0.15-0.22| 3.0-5.9 | 0.5-1.0 | .32 | .32 | | | | 45-62 | 0-45 |15-73 | 27-50 |1.45-1.70| 0.2-0.6 |0.15-0.22| 3.0-5.9 | 0.5-1.0 | .32 | .32 | | | | 62-80 | 0-45 |15-73 | 27-50 |1.45-1.70| 0.2-0.6 |0.15-0.22| 3.0-5.9 | 0.5-1.0 | .32 | .32 | | | | | | | | | | | | | | | | | NorC2: | | | | | | | | | | | | | | Norge----------| 0-8 | 0-50 |50-88 | 15-26 |1.30-1.50| 0.6-2 |0.15-0.24| 0.0-2.9 | 1.0-3.0 | .37 | .37 | 5 | 6 | 48 | 8-15 | 0-45 |15-73 | 27-35 |1.45-1.70| 0.2-0.6 |0.15-0.22| 3.0-5.9 | 0.5-1.0 | .32 | .32 | | | | 15-33 | 0-45 |15-73 | 27-35 |1.45-1.70| 0.2-0.6 |0.15-0.22| 3.0-5.9 | 0.5-1.0 | .32 | .32 | | | | 33-43 | 0-45 |15-73 | 27-35 |1.45-1.70| 0.2-0.6 |0.15-0.22| 3.0-5.9 | 0.5-1.0 | .32 | .32 | | | | 43-65 | 0-45 |15-73 | 27-50 |1.45-1.70| 0.2-0.6 |0.15-0.22| 3.0-5.9 | 0.5-1.0 | .32 | .32 | | | | 65-80 | 0-45 |15-73 | 27-50 |1.45-1.70| 0.2-0.6 |0.15-0.22| 3.0-5.9 | 0.5-1.0 | .32 | .32 | | | | | | | | | | | | | | | | |
Logan County, Oklahoma 431 Physical Properties of the Soils—Continued ___________________________________________________________________________________________________________________________________ | | | | | | | | | |Erosion factors|Wind |Wind _______________ Map symbol | Depth | Sand | Silt | Clay | Moist |Permeability |Available| Linear | Organic | | | |erodi-|erodi- and soil name | | | | | bulk | (Ksat) | water |extensi- | matter | K | Kf | T |bility|bility | | | | | density | |capacity | bility | | | | |group |index ___________________________________________________________________________________________________________________________________ | In | Pct | Pct | Pct | g/cc | In/hr | In/in | Pct | Pct | | | | | __ ___ ___ ___ ____ _____ _____ ___ ___ | | | | | | | | | | | | | | OWHD: | | | | | | | | | | | | | | Oil waste land.| | | | | | | | | | | | | | | | | | | | | | | | | | | | Huska----------| 0-8 | 0-50 |50-88 | 12-26 |1.30-1.55| 0.6-2 |0.10-0.20| 0.0-2.9 | 1.0-3.0 | .49 | .49 | 2 | 5 | 56 | 8-19 | 0-45 | 0-65 | 35-45 |1.50-1.70|0.0015-0.06 |0.06-0.10| 6.0-8.9 | 0.0-1.0 | .43 | .43 | | | | 19-40 | 0-45 | 0-65 | 35-60 |1.50-1.70|0.0015-0.06 |0.06-0.10| 6.0-8.9 | 0.0-1.0 | .43 | .43 | | | | 40-51 | 0-45 | 0-65 | 35-60 |1.50-1.70|0.0015-0.06 |0.06-0.10| 6.0-8.9 | 0.0-1.0 | .43 | .43 | | | | 51-59 | 0-45 | 0-65 | 35-60 |1.50-1.70|0.0015-0.06 |0.06-0.10| 6.0-8.9 | 0.0-1.0 | .43 | .43 | | | | 59-80 | --- | --- | --- |1.85-2.00|0.0000-0.2 | --- | --- | --- | --- | --- | | | | | | | | | | | | | | | | | PieB: | | | | | | | | | | | | | | Piedmont-------| 0-8 | 0-20 |40-73 | 27-35 |1.30-1.60| 0.2-0.6 |0.15-0.22| 3.0-5.9 | 1.0-3.0 | .43 | .43 | 3 | 6 | 48 | 8-17 | 0-45 | 0-65 | 35-55 |1.35-1.70|0.0015-0.06 |0.12-0.22| 6.0-8.9 | 0.5-1.0 | .43 | .43 | | | | 17-27 | 0-45 | 0-65 | 35-55 |1.35-1.70|0.0015-0.06 |0.12-0.22| 6.0-8.9 | 0.5-1.0 | .43 | .43 | | | | 27-32 | 0-45 | 0-65 | 35-55 |1.35-1.70|0.0015-0.06 |0.06-0.18| 6.0-8.9 | 0.5-1.0 | .37 | .37 | | | | 32-40 | --- | --- | --- |1.85-2.00|0.0000-0.2 | --- | --- | --- | --- | --- | | | | | | | | | | | | | | | | | PieC2: | | | | | | | | | | | | | | Piedmont-------| 0-7 | 0-20 |40-73 | 27-35 |1.30-1.60| 0.2-0.6 |0.15-0.22| 3.0-5.9 | 1.0-3.0 | .43 | .43 | 3 | 6 | 48 | 7-14 | 0-45 | 0-65 | 35-55 |1.35-1.70|0.0015-0.06 |0.12-0.22| 6.0-8.9 | 0.5-1.0 | .43 | .43 | | | | 14-27 | 0-45 | 0-65 | 35-55 |1.35-1.70|0.0015-0.06 |0.06-0.18| 6.0-8.9 | 0.5-1.0 | .37 | .37 | | | | 27-40 | --- | --- | --- |1.85-2.00|0.0000-0.2 | --- | --- | --- | --- | --- | | | | | | | | | | | | | | | | | PIT. | | | | | | | | | | | | | | Pits | | | | | | | | | | | | | | | | | | | | | | | | | | | | PukA: | | | | | | | | | | | | | | Pulaski--------| 0-8 |43-85 | 0-50 | 10-18 |1.40-1.65| 2-6 |0.13-0.19| 0.0-2.9 | 0.5-1.0 | .20 | .20 | 5 | 3 | 86 | 8-28 |32-85 | 0-50 | 10-18 |1.30-1.70| 2-6 |0.13-0.19| 0.0-2.9 | 0.0-1.0 | .32 | .32 | | | | 28-80 |32-90 | 0-50 | 5-18 |1.30-1.70| 2-6 |0.07-0.20| 0.0-2.9 | 0.0-1.0 | .32 | .32 | | | | | | | | | | | | | | | | | PulA: | | | | | | | | | | | | | | Pulaski--------| 0-10 |43-85 | 0-50 | 10-18 |1.40-1.65| 2-6 |0.13-0.19| 0.0-2.9 | 0.5-1.0 | .20 | .20 | 5 | 3 | 86 | 10-14 |43-85 | 0-50 | 10-18 |1.40-1.65| 2-6 |0.13-0.19| 0.0-2.9 | 0.5-1.0 | .20 | .20 | | | | 14-36 |32-85 | 0-50 | 10-18 |1.30-1.70| 2-6 |0.13-0.19| 0.0-2.9 | 0.0-1.0 | .32 | .32 | | | | 36-80 |32-90 | 0-50 | 5-18 |1.30-1.70| 2-6 |0.07-0.20| 0.0-2.9 | 0.0-1.0 | .32 | .32 | | | | | | | | | | | | | | | | | RenB: | | | | | | | | | | | | | | Renfrow--------| 0-11 | 0-32 |50-82 | 18-26 |1.25-1.55| 0.6-2 |0.15-0.24| 0.0-2.9 | 1.0-3.0 | .49 | .49 | 5 | 6 | 48 | 11-19 | 0-45 |15-82 | 22-40 |1.30-1.75| 0.2-0.6 |0.15-0.24| 3.0-5.9 | 0.5-2.0 | .43 | .43 | | | | 19-33 | 0-45 | 0-65 | 35-55 |1.30-1.75|0.0015-0.06 |0.12-0.22| 6.0-8.9 | 0.5-1.0 | .43 | .43 | | | | 33-66 | 0-45 | 0-65 | 35-55 |1.30-1.75|0.0015-0.06 |0.12-0.22| 6.0-8.9 | 0.5-1.0 | .43 | .43 | | | | 66-72 | 0-45 | 0-65 | 35-55 |1.30-1.75|0.0015-0.06 |0.12-0.22| 6.0-8.9 | 0.5-1.0 | .43 | .43 | | | | 72-80 | --- | --- | --- |1.85-2.00|0.0015-0.06 | --- | --- | --- | --- | --- | | | | | | | | | | | | | | | | |
432 Soil Survey Physical Properties of the Soils—Continued ___________________________________________________________________________________________________________________________________ | | | | | | | | | |Erosion factors|Wind |Wind _______________ Map symbol | Depth | Sand | Silt | Clay | Moist |Permeability |Available| Linear | Organic | | | |erodi-|erodi- and soil name | | | | | bulk | (Ksat) | water |extensi- | matter | K | Kf | T |bility|bility | | | | | density | |capacity | bility | | | | |group |index ___________________________________________________________________________________________________________________________________ | In | Pct | Pct | Pct | g/cc | In/hr | In/in | Pct | Pct | | | | | __ ___ ___ ___ ____ _____ _____ ___ ___ | | | | | | | | | | | | | | RenC: | | | | | | | | | | | | | | Renfrow--------| 0-10 | 0-32 |50-82 | 18-26 |1.25-1.55| 0.6-2 |0.15-0.24| 0.0-2.9 | 1.0-3.0 | .49 | .49 | 5 | 6 | 48 | 10-16 | 0-45 |15-85 | 22-40 |1.30-1.75| 0.2-0.6 |0.15-0.24| 3.0-5.9 | 0.5-2.0 | .43 | .43 | | | | 16-27 | 0-45 | 0-65 | 35-55 |1.30-1.75|0.0015-0.06 |0.12-0.22| 6.0-8.9 | 0.5-1.0 | .43 | .43 | | | | 27-38 | 0-45 | 0-65 | 35-55 |1.30-1.75|0.0015-0.06 |0.12-0.22| 6.0-8.9 | 0.5-1.0 | .43 | .43 | | | | 38-67 | 0-45 | 0-65 | 35-55 |1.30-1.75|0.0015-0.06 |0.12-0.22| 6.0-8.9 | 0.5-1.0 | .43 | .43 | | | | 67-80 | --- | --- | --- |1.85-2.00|0.0015-0.06 | --- | --- | --- | --- | --- | | | | | | | | | | | | | | | | | RewC2: | | | | | | | | | | | | | | Renfrow--------| 0-10 | 0-20 |40-73 | 27-35 |1.30-1.55| 0.2-0.6 |0.15-0.22| 3.0-5.9 | 1.0-3.0 | .43 | .43 | 5 | 6 | 48 | 10-24 | 0-45 | 0-65 | 35-55 |1.30-1.75|0.0015-0.06 |0.12-0.22| 6.0-8.9 | 0.5-1.0 | .43 | .43 | | | | 24-37 | 0-45 | 0-65 | 35-55 |1.30-1.75|0.0015-0.06 |0.12-0.22| 6.0-8.9 | 0.5-1.0 | .43 | .43 | | | | 37-54 | 0-45 | 0-65 | 35-55 |1.30-1.75|0.0015-0.06 |0.12-0.22| 6.0-8.9 | 0.5-1.0 | .43 | .43 | | | | 54-63 | 0-45 | 0-65 | 35-55 |1.30-1.75|0.0015-0.06 |0.12-0.22| 6.0-8.9 | 0.5-1.0 | .43 | .43 | | | | 63-80 | --- | --- | --- |1.85-2.00|0.0015-0.06 | --- | --- | --- | --- | --- | | | | | | | | | | | | | | | | | RinB: | | | | | | | | | | | | | | Renthin--------| 0-7 | 0-32 |50-82 | 20-26 |1.30-1.50| 0.6-2 |0.16-0.24| 0.0-2.9 | 1.0-3.0 | .49 | .49 | 4 | 6 | 48 | 7-12 | 0-45 |15-65 | 32-40 |1.45-1.70| 0.2-0.6 |0.15-0.22| 3.0-5.9 | 1.0-3.0 | .43 | .43 | | | | 12-21 | 0-45 | 0-65 | 35-55 |1.35-1.70|0.0015-0.06 |0.12-0.22| 6.0-8.9 | 0.5-1.0 | .43 | .43 | | | | 21-32 | 0-45 | 0-60 | 35-55 |1.35-1.70|0.0015-0.06 |0.07-0.22| 6.0-8.9 | 0.5-1.0 | .37 | .37 | | | | 32-54 | 0-45 | 0-60 | 35-55 |1.35-1.70|0.0015-0.06 |0.07-0.22| 6.0-8.9 | 0.5-1.0 | .37 | .37 | | | | 54-60 | --- | --- | --- |1.85-2.00|0.0015-0.06 | --- | --- | --- | --- | --- | | | | | | | | | | | | | | | | | RnnC2: | | | | | | | | | | | | | | Renthin--------| 0-10 |15-32 |50-82 | 20-26 |1.30-1.50| 0.6-2 |0.16-0.24| 0.0-2.9 | 1.0-3.0 | .49 | .49 | 4 | 6 | 48 | 10-20 | 0-45 | 0-65 | 35-55 |1.35-1.70|0.0015-0.06 |0.12-0.22| 6.0-8.9 | 0.5-1.0 | .43 | .43 | | | | 20-33 | 0-45 | 0-65 | 35-55 |1.35-1.70|0.0015-0.06 |0.12-0.22| 6.0-8.9 | 0.5-1.0 | .43 | .43 | | | | 33-45 | 0-45 | 0-65 | 35-55 |1.35-1.70|0.0015-0.06 |0.12-0.22| 6.0-8.9 | 0.5-1.0 | .43 | .43 | | | | 45-50 | 0-45 | 0-60 | 35-55 |1.35-1.70|0.0015-0.06 |0.07-0.22| 6.0-8.9 | 0.5-1.0 | .37 | .37 | | | | 50-60 | --- | --- | --- |1.85-2.00|0.0015-0.06 | --- | --- | --- | --- | --- | | | | | | | | | | | | | | | | | SDGD4: | | | | | | | | | | | | | | Stephenville---| 0-5 |43-85 | 0-50 | 10-20 |1.40-1.65| 2-6 |0.13-0.19| 0.0-2.9 | 0.5-1.0 | .24 | .24 | 3 | 3 | 86 | 5-12 |45-80 | 0-27 | 18-35 |1.35-1.75| 0.6-2 |0.13-0.19| 0.0-2.9 | 0.5-1.0 | .32 | .32 | | | | 12-22 |45-80 | 0-27 | 18-35 |1.35-1.75| 0.6-2 |0.13-0.19| 0.0-2.9 | 0.5-1.0 | .32 | .32 | | | | 22-36 | --- | --- | --- |1.85-2.00| 0.2-0.6 | --- | --- | --- | --- | --- | | | | | | | | | | | | | | | | | Darsil---------| 0-4 |70-90 | 0-30 | 1-10 |1.45-1.65| 6-20 |0.07-0.11| 0.0-2.9 | 0.5-3.0 | .17 | .17 | 2 | 2 | 134 | 4-12 |70-100| 0-30 | 1-10 |1.50-1.75| 6-20 |0.04-0.11| 0.0-2.9 | 0.0-0.5 | .17 | .17 | | | | 12-24 | --- | --- | --- |1.85-2.00| 0.2-2 | --- | --- | --- | --- | --- | | | | | | | | | | | | | | | | | Gullied land. | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Logan County, Oklahoma 433 Physical Properties of the Soils—Continued ___________________________________________________________________________________________________________________________________ | | | | | | | | | |Erosion factors|Wind |Wind _______________ Map symbol | Depth | Sand | Silt | Clay | Moist |Permeability |Available| Linear | Organic | | | |erodi-|erodi- and soil name | | | | | bulk | (Ksat) | water |extensi- | matter | K | Kf | T |bility|bility | | | | | density | |capacity | bility | | | | |group |index ___________________________________________________________________________________________________________________________________ | In | Pct | Pct | Pct | g/cc | In/hr | In/in | Pct | Pct | | | | | __ ___ ___ ___ ____ _____ _____ ___ ___ | | | | | | | | | | | | | | SDND: | | | | | | | | | | | | | | Stephenville---| 0-7 |43-85 | 0-50 | 10-20 |1.40-1.65| 2-6 |0.13-0.19| 0.0-2.9 | 0.5-1.0 | .24 | .24 | 3 | 3 | 86 | 7-13 |43-90 | 0-50 | 5-15 |1.40-1.70| 2-20 |0.07-0.19| 0.0-2.9 | 0.0-0.5 | .20 | .20 | | | | 13-28 |45-80 | 0-27 | 18-35 |1.35-1.75| 0.6-2 |0.13-0.19| 0.0-2.9 | 0.5-1.0 | .32 | .32 | | | | 28-36 | --- | --- | --- |1.85-2.00| 0.2-0.6 | --- | --- | --- | --- | --- | | | | | | | | | | | | | | | | | Darsil---------| 0-5 |43-85 | 0-50 | 1-10 |1.45-1.65| 6-20 |0.07-0.11| 0.0-2.9 | 0.5-3.0 | .17 | .17 | 2 | 3 | 86 | 5-18 |70-100| 0-30 | 1-10 |1.50-1.75| 6-20 |0.04-0.11| 0.0-2.9 | 0.0-0.5 | .17 | .17 | | | | 18-20 | --- | --- | --- |1.85-2.00| 0.2-2 | --- | --- | --- | --- | --- | | | | | | | | | | | | | | | | | Newalla--------| 0-4 | 3-85 | 0-50 | 7-17 |1.40-1.65| 0.6-2 |0.13-0.19| 0.0-2.9 | 0.5-3.0 | .37 | .37 | 4 | 3 | 86 | 4-8 |43-85 | 0-50 | 7-17 |1.40-1.65| 0.6-2 |0.13-0.19| 0.0-2.9 | 0.5-1.0 | .37 | .37 | | | | 8-13 |20-80 | 0-53 | 20-35 |1.30-1.70| 0.6-2 |0.14-0.20| 0.0-2.9 | 0.5-1.0 | .43 | .43 | | | | 13-27 | 0-45 | 0-60 | 40-60 |1.30-1.60|0.0015-0.06 |0.12-0.18| 6.0-8.9 | 0.0-0.5 | .37 | .37 | | | | 27-48 | 0-65 | 0-60 | 40-60 |1.30-1.65|0.0015-0.06 |0.04-0.18| 6.0-8.9 | 0.0-0.5 | .37 | .37 | | | | 48-80 | --- | --- | --- |1.85-2.00|0.0015-0.06 | --- | --- | --- | --- | --- | | | | | | | | | | | | | | | | | SDND2: | | | | | | | | | | | | | | Stephenville---| 0-7 |43-85 | 0-50 | 10-20 |1.40-1.65| 2-6 |0.13-0.19| 0.0-2.9 | 0.5-1.0 | .24 | .24 | 3 | 3 | 86 | 7-12 |45-80 | 0-27 | 18-35 |1.35-1.75| 0.6-2 |0.13-0.19| 0.0-2.9 | 0.5-1.0 | .32 | .32 | | | | 12-25 |45-80 | 0-27 | 18-35 |1.35-1.75| 0.6-2 |0.13-0.19| 0.0-2.9 | 0.5-1.0 | .32 | .32 | | | | 25-30 |45-80 | 0-27 | 18-35 |1.35-1.75| 0.6-2 |0.13-0.19| 0.0-2.9 | 0.5-1.0 | .32 | .32 | | | | 30-36 | --- | --- | --- |1.85-2.00| 0.2-0.6 | --- | --- | --- | --- | --- | | | | | | | | | | | | | | | | | Darsil---------| 0-6 |43-85 | 0-50 | 1-10 |1.45-1.65| 6-20 |0.07-0.11| 0.0-2.9 | 0.5-3.0 | .17 | .17 | 2 | 3 | 86 | 6-11 |70-100| 0-30 | 1-10 |1.50-1.75| 6-20 |0.04-0.11| 0.0-2.9 | 0.0-0.5 | .17 | .17 | | | | 11-24 | --- | --- | --- |1.85-2.00| 0.2-2 | --- | --- | --- | --- | --- | | | | | | | | | | | | | | | | | Newalla--------| 0-5 |43-85 | 0-50 | 7-17 |1.40-1.65| 0.6-2 |0.13-0.19| 0.0-2.9 | 0.5-3.0 | .37 | .37 | 4 | 3 | 86 | 5-12 |20-80 | 0-53 | 20-35 |1.30-1.70| 0.6-2 |0.14-0.20| 0.0-2.9 | 0.5-1.0 | .43 | .43 | | | | 12-26 | 0-45 | 0-60 | 40-60 |1.30-1.60|0.0015-0.06 |0.12-0.18| 6.0-8.9 | 0.0-0.5 | .37 | .37 | | | | 26-40 | 0-45 | 0-60 | 40-60 |1.30-1.60|0.0015-0.06 |0.12-0.18| 6.0-8.9 | 0.0-0.5 | .37 | .37 | | | | 40-80 | --- | --- | --- |1.85-2.00|0.0015-0.06 | --- | --- | --- | --- | --- | | | | | | | | | | | | | | | | | SlaB: | | | | | | | | | | | | | | Slaughterville-| 0-11 |43-85 | 0-50 | 10-18 |1.30-1.60| 2-6 |0.11-0.15| 0.0-2.9 | 1.0-3.0 | .20 | .20 | 5 | 3 | 86 | 11-20 |43-85 | 0-50 | 10-18 |1.50-1.70| 2-6 |0.11-0.15| 0.0-2.9 | 0.5-1.0 | .20 | .20 | | | | 20-34 |43-85 | 0-50 | 10-18 |1.50-1.70| 2-6 |0.11-0.15| 0.0-2.9 | 0.5-1.0 | .20 | .20 | | | | 34-42 |43-85 | 0-50 | 10-18 |1.50-1.70| 2-6 |0.11-0.15| 0.0-2.9 | 0.5-1.0 | .20 | .20 | | | | 42-53 |43-90 | 0-50 | 3-18 |1.50-1.70| 2-20 |0.07-0.15| 0.0-2.9 | 0.0-1.0 | .20 | .20 | | | | 53-80 |43-85 | 0-50 | 10-18 |1.50-1.70| 2-6 |0.11-0.15| 0.0-2.9 | 0.0-1.0 | .20 | .20 | | | | | | | | | | | | | | | | |
434 Soil Survey Physical Properties of the Soils—Continued ___________________________________________________________________________________________________________________________________ | | | | | | | | | |Erosion factors|Wind |Wind _______________ Map symbol | Depth | Sand | Silt | Clay | Moist |Permeability |Available| Linear | Organic | | | |erodi-|erodi- and soil name | | | | | bulk | (Ksat) | water |extensi- | matter | K | Kf | T |bility|bility | | | | | density | |capacity | bility | | | | |group |index ___________________________________________________________________________________________________________________________________ | In | Pct | Pct | Pct | g/cc | In/hr | In/in | Pct | Pct | | | | | __ ___ ___ ___ ____ _____ _____ ___ ___ | | | | | | | | | | | | | | SlaD: | | | | | | | | | | | | | | Slaughterville-| 0-8 |43-85 | 0-50 | 10-18 |1.30-1.60| 2-6 |0.11-0.15| 0.0-2.9 | 1.0-3.0 | .20 | .20 | 5 | 3 | 86 | 8-16 |43-85 | 0-50 | 10-18 |1.50-1.70| 2-6 |0.11-0.15| 0.0-2.9 | 0.5-1.0 | .20 | .20 | | | | 16-34 |43-85 | 0-50 | 10-18 |1.50-1.70| 2-6 |0.11-0.15| 0.0-2.9 | 0.5-1.0 | .20 | .20 | | | | 34-50 |43-85 | 0-50 | 10-18 |1.50-1.70| 2-6 |0.11-0.15| 0.0-2.9 | 0.5-1.0 | .20 | .20 | | | | 50-80 |43-90 | 0-50 | 3-18 |1.50-1.70| 2-20 |0.07-0.15| 0.0-2.9 | 0.0-1.0 | .20 | .20 | | | | | | | | | | | | | | | | | SlaF: | | | | | | | | | | | | | | Slaughterville-| 0-8 |43-85 | 0-50 | 10-18 |1.30-1.60| 2-6 |0.11-0.15| 0.0-2.9 | 1.0-3.0 | .20 | .20 | 5 | 3 | 86 | 8-16 |43-85 | 0-50 | 10-18 |1.50-1.70| 2-6 |0.11-0.15| 0.0-2.9 | 0.5-1.0 | .20 | .20 | | | | 16-34 |43-85 | 0-50 | 10-18 |1.50-1.70| 2-6 |0.11-0.15| 0.0-2.9 | 0.0-1.0 | .20 | .20 | | | | 34-48 |43-85 | 0-50 | 10-18 |1.50-1.70| 2-6 |0.11-0.15| 0.0-2.9 | 0.0-1.0 | .20 | .20 | | | | 48-63 |43-90 | 0-50 | 3-18 |1.50-1.70| 2-20 |0.07-0.15| 0.0-2.9 | 0.0-1.0 | .20 | .20 | | | | 63-80 |43-90 | 0-50 | 3-18 |1.50-1.70| 2-20 |0.07-0.15| 0.0-2.9 | 0.0-1.0 | .20 | .20 | | | | | | | | | | | | | | | | | StDC: | | | | | | | | | | | | | | Stephenville---| 0-6 |43-85 | 0-50 | 10-20 |1.40-1.65| 2-6 |0.13-0.19| 0.0-2.9 | 0.5-1.0 | .24 | .24 | 3 | 3 | 86 | 6-14 |43-90 | 0-50 | 5-15 |1.40-1.70| 2-20 |0.07-0.19| 0.0-2.9 | 0.0-0.5 | .20 | .20 | | | | 14-23 |45-80 | 0-27 | 18-35 |1.35-1.75| 0.6-2 |0.13-0.19| 0.0-2.9 | 0.5-1.0 | .32 | .32 | | | | 23-30 |45-80 | 0-27 | 18-35 |1.35-1.75| 0.6-2 |0.13-0.19| 0.0-2.9 | 0.5-1.0 | .32 | .32 | | | | 30-40 | --- | --- | --- |1.85-2.00| 0.2-0.6 | --- | --- | --- | --- | --- | | | | | | | | | | | | | | | | | Darsil---------| 0-4 |43-85 | 0-50 | 1-10 |1.45-1.65| 6-20 |0.07-0.11| 0.0-2.9 | 0.5-3.0 | .17 | .17 | 2 | 3 | 86 | 4-15 |70-100| 0-30 | 1-10 |1.50-1.75| 6-20 |0.04-0.11| 0.0-2.9 | 0.0-0.5 | .17 | .17 | | | | 15-20 | --- | --- | --- |1.85-2.00| 0.2-2 | --- | --- | --- | --- | --- | | | | | | | | | | | | | | | | | StDC2: | | | | | | | | | | | | | | Stephenville---| 0-8 |43-85 | 0-50 | 10-20 |1.40-1.65| 2-6 |0.13-0.19| 0.0-2.9 | 0.5-1.0 | .24 | .24 | 3 | 3 | 86 | 8-21 |45-80 | 0-27 | 18-35 |1.35-1.75| 0.6-2 |0.13-0.19| 0.0-2.9 | 0.5-1.0 | .32 | .32 | | | | 21-32 |45-80 | 0-27 | 18-35 |1.35-1.75| 0.6-2 |0.13-0.19| 0.0-2.9 | 0.5-1.0 | .32 | .32 | | | | 32-38 |45-80 | 0-27 | 18-35 |1.35-1.75| 0.6-2 |0.13-0.19| 0.0-2.9 | 0.5-1.0 | .32 | .32 | | | | 38-44 | --- | --- | --- |1.85-2.00| 0.2-0.6 | --- | --- | --- | --- | --- | | | | | | | | | | | | | | | | | Darsil---------| 0-8 |43-85 | 0-50 | 1-10 |1.45-1.65| 6-20 |0.07-0.11| 0.0-2.9 | 0.5-3.0 | .17 | .17 | 2 | 3 | 86 | 8-16 | 0-100| 0-30 | 1-10 |1.50-1.75| 6-20 |0.04-0.11| 0.0-2.9 | 0.0-0.5 | .17 | .17 | | | | 16-30 | --- | --- | --- |1.85-2.00| 0.2-2 | --- | --- | --- | --- | --- | | | | | | | | | | | | | | | | | StDE: | | | | | | | | | | | | | | Stephenville---| 0-7 |43-85 | 0-50 | 10-20 |1.40-1.65| 2-6 |0.13-0.19| 0.0-2.9 | 0.5-1.0 | .24 | .24 | 3 | 3 | 86 | 7-14 |43-90 | 0-30 | 5-15 |1.40-1.70| 2-20 |0.07-0.19| 0.0-2.9 | 0.0-0.5 | .20 | .20 | | | | 14-27 |43-85 | 0-50 | 18-35 |1.35-1.75| 0.6-2 |0.13-0.19| 0.0-2.9 | 0.5-1.0 | .32 | .32 | | | | 27-40 | --- | --- | --- |1.85-2.00| 0.2-0.6 | --- | --- | --- | --- | --- | | | | | | | | | | | | | | | | | Darsil---------| 0-7 |70-90 | 0-30 | 1-10 |1.45-1.65| 6-20 |0.07-0.11| 0.0-2.9 | 0.5-3.0 | .17 | .17 | 2 | 2 | 134 | 7-16 |70-100| 0-30 | 1-10 |1.50-1.75| 6-20 |0.04-0.11| 0.0-2.9 | 0.0-0.5 | .17 | .17 | | | | 16-20 | --- | --- | --- |1.85-2.00| 0.2-2 | --- | --- | --- | --- | --- | | | | | | | | | | | | | | | | |
Logan County, Oklahoma 435 Physical Properties of the Soils—Continued ___________________________________________________________________________________________________________________________________ | | | | | | | | | |Erosion factors|Wind |Wind _______________ Map symbol | Depth | Sand | Silt | Clay | Moist |Permeability |Available| Linear | Organic | | | |erodi-|erodi- and soil name | | | | | bulk | (Ksat) | water |extensi- | matter | K | Kf | T |bility|bility | | | | | density | |capacity | bility | | | | |group |index ___________________________________________________________________________________________________________________________________ | In | Pct | Pct | Pct | g/cc | In/hr | In/in | Pct | Pct | | | | | __ ___ ___ ___ ____ _____ _____ ___ ___ | | | | | | | | | | | | | | SteB: | | | | | | | | | | | | | | Stephenville---| 0-6 |43-85 | 0-50 | 10-20 |1.40-1.65| 2-6 |0.13-0.19| 0.0-2.9 | 0.5-1.0 | .24 | .24 | 3 | 3 | 86 | 6-12 |43-90 | 0-30 | 5-15 |1.40-1.70| 2-20 |0.07-0.19| 0.0-2.9 | 0.0-0.5 | .20 | .20 | | | | 12-22 |45-80 | 0-27 | 18-35 |1.35-1.75| 0.6-2 |0.13-0.19| 0.0-2.9 | 0.5-1.0 | .32 | .32 | | | | 22-35 |45-80 | 0-27 | 18-35 |1.35-1.75| 0.6-2 |0.13-0.19| 0.0-2.9 | 0.5-1.0 | .32 | .32 | | | | 35-40 | --- | --- | --- |1.85-2.00| 0.2-0.6 | --- | --- | --- | --- | --- | | | | | | | | | | | | | | | | | SteC2: | | | | | | | | | | | | | | Stephenville---| 0-8 |43-85 | 0-50 | 10-20 |1.40-1.65| 2-6 |0.13-0.19| 0.0-2.9 | 0.5-1.0 | .24 | .24 | 3 | 3 | 86 | 8-29 |45-80 | 0-27 | 18-35 |1.35-1.75| 0.6-2 |0.13-0.19| 0.0-2.9 | 0.5-1.0 | .32 | .32 | | | | 29-40 | --- | --- | --- |1.85-2.00| 0.2-0.6 | --- | --- | --- | --- | --- | | | | | | | | | | | | | | | | | SUND: | | | | | | | | | | | | | | Stephenville---| 0-9 |43-85 | 0-50 | 10-20 |1.40-1.65| 2-6 |0.13-0.19| 0.0-2.9 | 0.5-1.0 | .24 | .24 | 3 | 3 | 86 | 9-28 |45-80 | 0-27 | 18-35 |1.35-1.75| 0.6-2 |0.13-0.19| 0.0-2.9 | 0.5-1.0 | .32 | .32 | | | | 28-40 | --- | --- | --- |1.85-2.00| 0.2-0.6 | --- | --- | --- | --- | --- | | | | | | | | | | | | | | | | | Urban land. | | | | | | | | | | | | | | | | | | | | | | | | | | | | Newalla--------| 0-6 |23-53 |27-50 | 10-25 |1.30-1.55| 0.6-2 |0.14-0.20| 0.0-2.9 | 0.5-3.0 | .49 | .49 | 4 | 3 | 86 | 6-11 |20-80 | 0-53 | 20-35 |1.30-1.70| 0.6-2 |0.14-0.20| 0.0-2.9 | 0.5-1.0 | .43 | .43 | | | | 11-34 | 0-45 | 0-60 | 40-60 |1.30-1.60|0.0015-0.06 |0.12-0.18| 6.0-8.9 | 0.0-0.5 | .37 | .37 | | | | 34-58 | 0-45 | 0-60 | 40-60 |1.30-1.60|0.0015-0.06 |0.12-0.18| 6.0-8.9 | 0.0-0.5 | .37 | .37 | | | | 58-72 | --- | --- | --- |1.85-2.00|0.0015-0.06 | --- | --- | --- | --- | --- | | | | | | | | | | | | | | | | | TelB: | | | | | | | | | | | | | | Teller---------| 0-9 |23-53 |27-50 | 10-20 |1.30-1.70| 2-6 |0.15-0.24| 0.0-2.9 | 1.0-3.0 | .37 | .37 | 5 | 5 | 56 | 9-15 |23-85 | 0-50 | 10-20 |1.30-1.70| 2-6 |0.13-0.20| 0.0-2.9 | 0.5-1.0 | .32 | .32 | | | | 15-31 |20-80 | 0-53 | 20-30 |1.30-1.70| 0.6-2 |0.14-0.20| 0.0-2.9 | 0.5-1.0 | .32 | .32 | | | | 31-44 |20-80 | 0-53 | 20-30 |1.30-1.70| 0.6-2 |0.14-0.20| 0.0-2.9 | 0.5-1.0 | .32 | .32 | | | | 44-55 |43-85 | 0-50 | 10-20 |1.30-1.70| 2-6 |0.13-0.20| 0.0-2.9 | 0.5-1.0 | .32 | .32 | | | | 55-80 |43-85 | 0-50 | 10-20 |1.30-1.70| 2-6 |0.13-0.20| 0.0-2.9 | 0.5-1.0 | .32 | .32 | | | | | | | | | | | | | | | | | TelC2: | | | | | | | | | | | | | | Teller---------| 0-4 |23-53 | 0-50 | 10-20 |1.30-1.70| 2-6 |0.15-0.24| 0.0-2.9 | 1.0-3.0 | .37 | .37 | 5 | 5 | 56 | 4-25 |23-85 | 0-50 | 10-20 |1.30-1.70| 2-6 |0.13-0.20| 0.0-2.9 | 0.5-1.0 | .32 | .32 | | | | 25-44 |20-80 | 0-53 | 20-30 |1.30-1.70| 0.6-2 |0.14-0.20| 0.0-2.9 | 0.5-1.0 | .32 | .32 | | | | 44-59 |20-80 | 0-53 | 20-30 |1.30-1.70| 0.6-2 |0.14-0.20| 0.0-2.9 | 0.5-1.0 | .32 | .32 | | | | 59-80 |20-80 | 0-53 | 20-30 |1.30-1.70| 0.6-2 |0.14-0.20| 0.0-2.9 | 0.5-1.0 | .32 | .32 | | | | | | | | | | | | | | | | | TriA: | | | | | | | | | | | | | | Tribbey--------| 0-6 |43-85 | 0-50 | 10-18 |1.40-1.65| 2-6 |0.13-0.19| 0.0-2.9 | 0.5-1.0 | .24 | .24 | 5 | 3 | 86 | 6-45 |32-85 | 0-50 | 10-18 |1.65-1.75| 2-6 |0.07-0.20| 0.0-2.9 | 0.0-0.5 | .24 | .24 | | | | 45-80 |32-90 | 0-50 | 5-18 |1.35-1.75| 2-6 |0.07-0.20| 0.0-2.9 | 0.0-0.5 | .24 | .24 | | | | | | | | | | | | | | | | |
436 Soil Survey Physical Properties of the Soils—Continued ___________________________________________________________________________________________________________________________________ | | | | | | | | | |Erosion factors|Wind |Wind _______________ Map symbol | Depth | Sand | Silt | Clay | Moist |Permeability |Available| Linear | Organic | | | |erodi-|erodi- and soil name | | | | | bulk | (Ksat) | water |extensi- | matter | K | Kf | T |bility|bility | | | | | density | |capacity | bility | | | | |group |index ___________________________________________________________________________________________________________________________________ | In | Pct | Pct | Pct | g/cc | In/hr | In/in | Pct | Pct | | | | | __ ___ ___ ___ ____ _____ _____ ___ ___ | | | | | | | | | | | | | | URB. | | | | | | | | | | | | | | Urban land | | | | | | | | | | | | | | | | | | | | | | | | | | | | W. | | | | | | | | | | | | | | Water | | | | | | | | | | | | | | | | | | | | | | | | | | | | YaaA: | | | | | | | | | | | | | | Yahola---------| 0-7 |32-52 |27-80 | 10-18 |1.30-1.55| 2-6 |0.13-0.20| 0.0-2.9 | 0.5-1.0 | .32 | .32 | 5 | 5 | 56 | 7-14 |32-85 | 0-50 | 5-18 |1.30-1.70| 2-6 |0.13-0.20| 0.0-2.9 | 0.0-0.5 | .32 | .32 | | | | 14-34 |32-85 | 0-50 | 5-18 |1.30-1.70| 2-6 |0.13-0.20| 0.0-2.9 | 0.0-0.5 | .32 | .32 | | | | 34-46 |32-90 | 0-50 | 5-18 |1.30-1.70| 2-6 |0.07-0.19| 0.0-2.9 | 0.0-0.5 | .32 | .32 | | | | 46-80 |32-90 | 0-50 | 5-18 |1.30-1.70| 2-6 |0.07-0.19| 0.0-2.9 | 0.0-0.5 | .32 | .32 | | | | | | | | | | | | | | | | | YahA: | | | | | | | | | | | | | | Yahola---------| 0-6 |43-85 | 0-50 | 10-18 |1.40-1.65| 2-6 |0.13-0.19| 0.0-2.9 | 0.5-1.0 | .20 | .20 | 5 | 3 | 86 | 6-34 |32-85 | 0-50 | 5-18 |1.30-1.70| 2-6 |0.13-0.20| 0.0-2.9 | 0.0-0.5 | .32 | .32 | | | | 34-80 |32-90 | 0-50 | 5-18 |1.30-1.70| 2-6 |0.07-0.19| 0.0-2.9 | 0.0-0.5 | .32 | .32 | | | | | | | | | | | | | | | | | ZaHC: | | | | | | | | | | | | | | Zaneis---------| 0-12 |43-85 | 0-50 | 10-18 |1.40-1.65| 2-6 |0.10-0.15| 0.0-2.9 | 1.0-3.0 | .20 | .20 | 4 | 3 | 86 | 12-25 |20-80 | 0-53 | 18-30 |1.40-1.70| 0.6-2 |0.12-0.20| 0.0-2.9 | 0.5-2.0 | .37 | .37 | | | | 25-32 |20-80 | 0-53 | 20-38 |1.45-1.70| 0.2-0.6 |0.12-0.20| 3.0-5.9 | 0.5-1.0 | .32 | .32 | | | | 32-52 |20-80 | 0-53 | 18-30 |1.40-1.70| 0.6-2 |0.11-0.20| 0.0-2.9 | 0.5-1.0 | .32 | .32 | | | | 52-60 | --- | --- | --- |1.85-2.00|0.0000-0.2 | --- | --- | --- | --- | --- | | | | | | | | | | | | | | | | | Huska----------| 0-5 |23-53 |27-50 | 12-26 |1.30-1.55| 0.6-2 |0.10-0.20| 0.0-2.9 | 1.0-3.0 | .49 | .49 | 2 | 5 | 56 | 5-13 | 0-45 | 0-65 | 35-45 |1.50-1.70|0.0015-0.06 |0.06-0.10| 6.0-8.9 | 0.0-1.0 | .43 | .43 | | | | 13-20 | 0-45 | 0-65 | 35-45 |1.50-1.70|0.0015-0.06 |0.06-0.10| 6.0-8.9 | 0.0-1.0 | .43 | .43 | | | | 20-39 | 0-45 | 0-65 | 35-60 |1.50-1.70|0.0015-0.06 |0.06-0.10| 6.0-8.9 | 0.0-1.0 | .43 | .43 | | | | 39-59 | 0-45 | 0-65 | 35-60 |1.50-1.70|0.0015-0.06 |0.06-0.10| 6.0-8.9 | 0.0-1.0 | .43 | .43 | | | | 59-67 | --- | --- | --- |1.85-2.00|0.0000-0.2 | --- | --- | --- | --- | --- | | | | | | | | | | | | | | | | | ZanB: | | | | | | | | | | | | | | Zaneis---------| 0-10 |23-53 |27-50 | 15-26 |1.30-1.60| 0.6-2 |0.15-0.20| 0.0-2.9 | 1.0-3.0 | .37 | .37 | 4 | 5 | 56 | 10-17 |20-80 | 0-53 | 18-30 |1.40-1.70| 0.6-2 |0.12-0.20| 0.0-2.9 | 0.5-2.0 | .37 | .37 | | | | 17-28 |20-80 | 0-53 | 20-38 |1.45-1.70| 0.2-0.6 |0.12-0.20| 3.0-5.9 | 0.5-1.0 | .32 | .32 | | | | 28-38 |20-80 | 0-53 | 20-38 |1.45-1.70| 0.2-0.6 |0.12-0.20| 3.0-5.9 | 0.5-1.0 | .32 | .32 | | | | 38-44 |20-80 | 0-53 | 18-30 |1.40-1.70| 0.6-2 |0.11-0.20| 0.0-2.9 | 0.5-1.0 | .32 | .32 | | | | 44-54 | --- | --- | --- |1.85-2.00|0.0000-0.2 | --- | --- | --- | --- | --- | | | | | | | | | | | | | | | | |
Logan County, Oklahoma 437 Physical Properties of the Soils—Continued ___________________________________________________________________________________________________________________________________ | | | | | | | | | |Erosion factors|Wind |Wind _______________ Map symbol | Depth | Sand | Silt | Clay | Moist |Permeability |Available| Linear | Organic | | | |erodi-|erodi- and soil name | | | | | bulk | (Ksat) | water |extensi- | matter | K | Kf | T |bility|bility | | | | | density | |capacity | bility | | | | |group |index ___________________________________________________________________________________________________________________________________ | In | Pct | Pct | Pct | g/cc | In/hr | In/in | Pct | Pct | | | | | __ ___ ___ ___ ____ _____ _____ ___ ___ | | | | | | | | | | | | | | ZanC: | | | | | | | | | | | | | | Zaneis---------| 0-8 |22-53 |27-50 | 15-26 |1.30-1.60| 0.6-2 |0.15-0.20| 0.0-2.9 | 1.0-3.0 | .37 | .37 | 4 | 5 | 56 | 8-14 |20-80 | 0-53 | 18-30 |1.40-1.70| 0.6-2 |0.12-0.20| 0.0-2.9 | 0.5-2.0 | .37 | .37 | | | | 14-25 |20-80 | 0-53 | 18-30 |1.40-1.70| 0.6-2 |0.12-0.20| 0.0-2.9 | 0.5-2.0 | .37 | .37 | | | | 25-31 |20-80 | 0-53 | 20-38 |1.45-1.70| 0.2-0.6 |0.12-0.20| 3.0-5.9 | 0.5-1.0 | .32 | .32 | | | | 31-47 |20-80 | 0-53 | 20-38 |1.45-1.70| 0.2-0.6 |0.12-0.20| 3.0-5.9 | 0.5-1.0 | .32 | .32 | | | | 47-54 | --- | --- | --- |1.85-2.00|0.0000-0.2 | --- | --- | --- | --- | --- | | | | | | | | | | | | | | | | | ZanC2: | | | | | | | | | | | | | | Zaneis---------| 0-8 |23-53 |27-50 | 15-26 |1.30-1.60| 0.6-2 |0.15-0.20| 0.0-2.9 | 1.0-3.0 | .37 | .37 | 4 | 5 | 56 | 8-15 |20-80 | 0-53 | 18-30 |1.40-1.70| 0.6-2 |0.12-0.20| 0.0-2.9 | 0.5-2.0 | .37 | .37 | | | | 15-26 |20-80 | 0-53 | 20-38 |1.45-1.70| 0.2-0.6 |0.12-0.20| 3.0-5.9 | 0.5-1.0 | .32 | .32 | | | | 26-43 |20-80 | 0-53 | 20-38 |1.45-1.70| 0.2-0.6 |0.12-0.20| 3.0-5.9 | 0.5-1.0 | .32 | .32 | | | | 43-56 |20-80 | 0-53 | 18-30 |1.40-1.70| 0.6-2 |0.11-0.20| 0.0-2.9 | 0.5-1.0 | .32 | .32 | | | | 56-60 | --- | --- | --- |1.85-2.00|0.0000-0.2 | --- | --- | --- | --- | --- | | | | | | | | | | | | | | | | | ___________________________________________________________________________________________________________________________________
438 Soil Survey

Physical Analyses of Selected Soils

The results of physical analyses of several pedons are given in the table “Physical

Properties of Selected Soils.” The data are for soils sampled at carefully selected sites.

The pedons are representative of the series described in the section “Soil Series and

Their Morphology.” Soil samples were analyzed by the Soil Survey Laboratory, Lincoln,

Nebraska.

Most determinations, except for those for grain-size analysis and bulk density, were

made on soil material smaller than 2 millimeters in diameter. Measurements reported

as percent or quantity of unit weight were calculated on an ovendry basis. The

methods used in obtaining the data are indicated in the list that follows. The codes in

parentheses refer to published methods (8).

Clay—(fraction less than 0.002 mm) pipette extraction, weight percentages of all

material less than 2 mm (3A1).

Silt—(0.002-0.05 mm fraction) pipette extraction, weight percentages of all material

less than 2 mm (3A1).

Sand—(0.05-2.0 mm fraction) weight percentages of material less than 2 mm

(3A1).

Bulk density—of less than 2 mm material, saran-coated clods field moist (4A1a), 1

/3 bar (4A1d), ovendry (4A1h).

Water-retention difference—between 1/3 bar and 15 bars for whole soil (4C1).

Water retained—pressure extraction, percentage of ovendry weight of less than 2

mm material; 1/3 or 1/10 bar (4B1), 15 bars (4B2).

Linear extensibility—change in clod dimension based on whole soil (4D).
Logan County, Oklahoma 439 Physical Properties of Selected Soils (The location of the sampled pedons is given at the end of the table. HO means horizon; TR means trace. Dashes indicate that analyses were not made) ____________________________________________________________________________________________________________________________________ | | | Particle-size distribution | Bulk |Water | Water | _____________________________________________________________________ | | |Clay | Silt | Sand | density |reten- | content | __________________________________________________________________________ _________ Soil name and | HO |Depth|less |Total | Fine |Coarse|Total | Very | Fine |Medium|Coarse| Very | | |tion | | |COLE sample number | | |than |silt |(0.002-|(0.02-|sand | fine |(0.10-|(0.25-|(0.5- |coarse|1/3 |Oven-|differ-| 1/3| 15 | | | |0.002|(.002-| 0.02 | 0.05 |(0.05-|(0.05-|0.25 | 0.50 | 1 mm)|(2.0- |bar | dry |ence | bar| bar| | | | mm |0.05 | mm) | mm) | 2.0 | 0.10 | mm) | mm) | | 1.0 | | |1/3 bar| | | | | | | mm) | | | mm) | mm) | | | | mm) | | |15 bar | | | ____________________________________________________________________________________________________________________________________ | | In |--------------------------------Percent------------------------------|---g/cm3--| Cm/cm |Pct |Pct | __ _____________________________________________________________________ __________ _____ ___ ___ | | | | | | | | | | | | | | | | | | Bathel: |Ap | 0-8 | 4.3| 17.1 | 3.8 | 13.3 | 78.6 | 11.3 | 40.2 | 26.6 | 0.5 | --- |--- | --- | --- |--- | 2.2| --- (S92OK-083-006)|A | 8-12| 4.2| 14.9 | 3.6 | 11.3 | 80.9 | 12.9 | 42.2 | 25.2 | 0.6 | --- |--- | --- | --- |--- | 1.4| --- |E |12-18| 9.2| 13.4 | 4.8 | 8.6 | 77.4 | 10.3 | 39.8 | 26.8 | 0.5 | TR |--- | --- | --- |--- | 3.8| --- |Bt |18-22| 27.4| 18.4 | 9.1 | 9.3 | 54.2 | 8.8 | 30.0 | 15.1 | 0.3 | --- |--- | --- | --- |--- |11.9| --- |Btg1|22-35| 31.3| 17.7 | 10.2 | 7.5 | 51.0 | 8.1 | 28.3 | 14.4 | 0.2 | --- |--- | --- | --- |--- |12.3| --- |Btg2|35-45| 22.4| 8.6 | 3.5 | 5.1 | 69.0 | 17.0 | 37.1 | 14.7 | 0.2 | --- |--- | --- | --- |--- | 9.5| --- |BCg1|45-51| 17.2| 6.2 | 2.4 | 3.8 | 76.6 | 14.8 | 41.8 | 19.8 | 0.2 | --- |--- | --- | --- |--- | 7.1| --- |BCg2|51-66| 10.9| 2.4 | 1.3 | 1.1 | 86.7 | 14.4 | 57.4 | 14.8 | 0.1 | --- |--- | --- | --- |--- | 4.8| --- |2Bt |66-86| 13.2| 18.6 | 4.8 | 13.8 | 68.2 | 21.8 | 32.9 | 13.2 | 0.3 | TR |--- | --- | --- |--- | 6.3| --- | | | | | | | | | | | | | | | | | | Bethany: |Bt1 |17-31| 37.5| 52.4 | 22.3 | 30.1 | 10.1 | 8.9 | 1.0 | 0.1 | --- | 0.1 |--- | --- | --- |--- |17.1| --- (S89OK-083-001)|Bt2 |31-40| 40.0| 44.5 | 17.4 | 27.1 | 15.5 | 11.3 | 2.2 | 0.5 | 0.5 | 1.0 |--- | --- | --- |--- |16.3| --- |Bt3 |40-51| 38.8| 41.8 | 8.2 | 33.6 | 19.4 | 14.7 | 2.7 | 0.7 | 0.6 | 0.7 |--- | --- | --- |--- |16.0| --- | | | | | | | | | | | | | | | | | | Coyle: |Ap | 0-5 | 11.5| 35.8 | 9.3 | 26.5 | 35.8 | 32.6 | 19.2 | 0.7 | 0.1 | 0.1 |1.37| 1.43| 0.16 |17.2| 5.6|0.014 (S91OK-083-001)|BA | 5-10| 17.0| 27.3 | 8.2 | 19.1 | 27.3 | 22.4 | 32.1 | 0.9 | 0.1 | 0.2 |1.40| 1.50| 0.16 |18.0| 6.9|0.023 |Bt1 |10-14| 20.6| 25.1 | 7.6 | 17.5 | 25.1 | 19.1 | 34.2 | 0.8 | 0.2 | TR |1.41| 1.52| 0.17 |19.8| 8.1|0.025 |Bt2 |14-18| 21.2| 21.2 | 6.8 | 14.4 | 21.2 | 18.1 | 38.6 | 0.7 | 0.1 | 0.1 |1.45| 1.57| 0.13 |17.6| 8.3|0.027 |BCt |18-27| 17.3| 10.0 | 3.3 | 6.7 | 10.0 | 18.7 | 53.2 | 0.7 | TR | 0.1 |1.62| 1.67| 0.10 |12.7| 6.7|0.010 |Cr |27-37| 9.3| 6.3 | 3.7 | 2.6 | 6.3 | 13.4 | 69.9 | 1.1 | TR | --- |1.79| 1.81| 0.07 | 8.1| 4.3|0.004 |R |37-47| ---| --- | --- | --- | --- | --- | --- | --- | --- | --- |1.80| 1.84| --- | 7.8| ---|0.007 | | | | | | | | | | | | | | | | | | Darsil: |A | 0-3 | 4.4| 16.9 | 6.0 | 10.9 | 78.7 | 23.6 | 54.6 | 0.4 | 0.1 | TR |1.29| 1.29| 0.09 |10.2| 2.9| --- (S91OK-083-007)|EC | 3-14| 3.2| 13.5 | 5.6 | 7.9 | 83.3 | 21.7 | 61.3 | 0.3 | TR | TR |1.48| 1.48| 0.15 |12.2| 1.7| --- |Cr1 |14-24| 5.4| 11.3 | 6.2 | 5.1 | 83.3 | 17.0 | 65.8 | 0.5 | TR | --- |1.77| 1.79| 0.08 | 8.2| 3.7|0.004 |Cr2 |24-35| 13.9| 13.1 | 5.8 | 7.3 | 73.0 | 23.6 | 48.2 | 1.0 | 0.2 | TR |1.68| 1.76| 0.12 |12.8| 5.4|0.016 | | | | | | | | | | | | | | | | | | Ironmound: |Ap | 0-4 | 11.8| 14.3 | 4.3 | 10.0 | 73.9 | 40.3 | 32.4 | 0.8 | 0.3 | 0.1 |--- | --- | --- |--- | 4.2| --- (S92OK-083-005)|Bwd | 4-10| 16.6| 14.5 | 4.3 | 10.2 | 68.9 | 41.2 | 27.4 | 0.3 | TR | TR |--- | --- | --- |--- | 6.5| --- |Bw |10-18| 20.4| 18.7 | 6.8 | 11.9 | 60.9 | 45.4 | 15.4 | 0.1 | TR | --- |--- | --- | --- |--- | 7.6| --- |C/Cr|18-23| 12.4| 13.7 | 5.7 | 8.0 | 73.9 | 53.8 | 20.0 | 0.1 | --- | --- |--- | --- | --- |--- | 4.6| --- |Cr1 |23-34| 10.2| 11.0 | 4.8 | 6.2 | 78.8 | 54.0 | 24.5 | 0.3 | TR | TR |--- | --- | --- |--- | 4.0| --- |Cr2 |34-51| 9.9| 13.9 | 6.9 | 7.0 | 76.2 | 39.3 | 36.2 | 0.6 | 0.1 | --- |--- | --- | --- |--- | 4.2| --- |R |51-63| ---| --- | --- | --- | --- | --- | --- | --- | --- | --- |--- | --- | --- |--- | ---| --- | | | | | | | | | | | | | | | | | |
440 Soil Survey Physical Properties of Selected Soils—Continued ____________________________________________________________________________________________________________________________________ | | | Particle-size distribution | Bulk |Water | Water | _____________________________________________________________________ | | |Clay | Silt | Sand | density |reten- | content | __________________________________________________________________________ _________ Soil name and | HO |Depth|less |Total | Fine |Coarse|Total | Very | Fine |Medium|Coarse| Very | | |tion | | |COLE sample number | | |than |silt |(0.002-|(0.02-|sand | fine |(0.10-|(0.25-|(0.5- |coarse|1/3 |Oven-|differ-| 1/3| 15 | | | |0.002|(.002-| 0.02 | 0.05 |(0.05-|(0.05-|0.25 | 0.50 | 1 mm)|(2.0- |bar | dry |ence | bar| bar| | | | mm |0.05 | mm) | mm) | 2.0 | 0.10 | mm) | mm) | | 1.0 | | |1/3 bar| | | | | | | mm) | | | mm) | mm) | | | | mm) | | |15 bar | | | ____________________________________________________________________________________________________________________________________ | | In |--------------------------------Percent------------------------------|---g/cm3--| Cm/cm |Pct |Pct | __ _____________________________________________________________________ __________ _____ ___ ___ | | | | | | | | | | | | | | | | | | Kingfisher: | | | | | | | | | | | | | | | | | | (S90OK-083-004)|Ap | 0-7 | 20.5| 36.1 | 11.2 | 24.9 | 43.4 | 33.0 | 9.9 | 0.2 | 0.2 | 0.1 |--- | --- | --- |--- | 8.9| --- |Bt1 | 7-12| 30.4| 29.8 | 11.9 | 17.9 | 39.8 | 28.8 | 10.7 | 0.2 | 0.1 | TR |--- | --- | --- |--- |10.7| --- |Bt2 |12-18| 38.4| 43.4 | 22.6 | 20.8 | 18.2 | 14.0 | 4.0 | 0.1 | 0.1 | TR |--- | --- | --- |--- |12.6| --- |BC |18-25| 33.2| 40.0 | 21.7 | 18.3 | 26.8 | 21.5 | 5.1 | 0.1 | 0.1 | TR |--- | --- | --- |--- |11.1| --- | | | | | | | | | | | | | | | | | | Kingfisher: | | | | | | | | | | | | | | | | | | (S90OK-083-005)|Ap | 0-8 | 18.9| 31.9 | 8.2 | 23.7 | 49.2 | 28.8 | 19.8 | 0.2 | 0.2 | 0.2 |--- | --- | --- |--- | 8.5| --- |Bt1 | 8-13| 25.7| 30.2 | 8.8 | 21.4 | 44.1 | 25.3 | 18.4 | 0.3 | 0.1 | TR |--- | --- | --- |--- |11.1| --- |Bt2 |13-20| 31.6| 41.8 | 13.9 | 27.9 | 26.6 | 20.4 | 5.8 | 0.2 | 0.1 | 0.1 |--- | --- | --- |--- |11.5| --- |BC |20-27| 27.0| 39.5 | 14.6 | 24.9 | 33.5 | 28.3 | 3.8 | 0.6 | 0.4 | 0.4 |--- | --- | --- |--- | 9.4| --- | | | | | | | | | | | | | | | | | | Kirkland: |Bt1 | 8-18| 40.5| 49.4 | 19.7 | 29.7 | 10.1 | 8.6 | 0.7 | 0.3 | 0.3 | 0.2 |--- | --- | --- |--- |17.6| --- (S89OK-083-002)|Bt2 |18-29| 39.9| 49.5 | 20.3 | 29.2 | 10.6 | 8.4 | 0.8 | 0.6 | 0.4 | 0.4 |--- | --- | --- |--- |17.2| --- |Bt3 |29-41| 39.8| 47.0 | 19.0 | 28.0 | 13.2 | 10.5 | 1.0 | 0.6 | 0.5 | 0.6 |--- | --- | --- |--- |17.5| --- |Bt4 |41-50| 42.5| 43.1 | 17.9 | 25.2 | 14.4 | 12.3 | 1.1 | 0.4 | 0.5 | 0.1 |--- | --- | --- |--- |19.4| --- | | | | | | | | | | | | | | | | | | Kirkland: |Ap | 0-8 | 25.5| 58.4 | 21.2 | 37.2 | 16.1 | 14.3 | 1.3 | 0.3 | 0.1 | 0.1 |1.50| 1.63| 0.17 |21.6|10.1|0.028 (S91OK-083-005)|Bt1 | 8-18| 41.7| 47.7 | 22.2 | 25.5 | 10.6 | 9.4 | 0.9 | 0.2 | 0.1 | TR |1.34| 1.70| 0.18 |30.0|16.8|0.083 |Bt2 |18-28| 41.8| 45.4 | 22.6 | 22.8 | 12.8 | 11.5 | 0.9 | 0.2 | 0.1 | 0.1 |1.40| 1.77| 0.16 |28.7|17.0|0.081 |Btk |28-40| 42.0| 48.3 | 24.9 | 23.4 | 9.7 | 7.1 | 0.9 | 0.5 | 0.5 | 0.7 |1.39| 1.80| 0.18 |30.0|16.9|0.089 |2Bt1|40-50| 44.8| 44.0 | 23.3 | 20.7 | 11.2 | 8.8 | 1.0 | 0.5 | 0.4 | 0.5 |1.38| 1.78| 0.18 |31.0|18.1|0.088 |2Bt2|50-59| 46.7| 40.8 | 20.7 | 20.1 | 12.5 | 10.2 | 1.2 | 0.4 | 0.3 | 0.4 |1.37| 1.81| 0.15 |30.1|19.3|0.097 |2Bt3|59-73| 47.9| 40.0 | 19.6 | 20.4 | 12.1 | 10.2 | 1.1 | 0.5 | 0.2 | 0.1 |1.36| 1.78| 0.16 |31.1|19.6|0.094 |2Bt4|73-85| 43.7| 46.5 | 24.7 | 21.8 | 9.8 | 8.5 | 0.9 | 0.3 | 0.1 | --- |1.40| 1.72| 0.15 |28.0|17.2|0.071 |3Cr |85-96| 26.2| 65.9 | 35.3 | 30.6 | 7.9 | 6.5 | 1.0 | 0.3 | 0.1 | TR |1.61| 1.82| 0.12 |19.5|12.1|0.042 | | | | | | | | | | | | | | | | | | Lawrie: |Ap | 0-6 | 13.6| 43.3 | 14.8 | 28.5 | 43.1 | 27.0 | 15.9 | 0.2 | TR | --- |1.55| 1.60| 0.13 |14.5| 5.9|0.011 (S91OK-083-004)|Ad | 6-10| 13.0| 44.4 | 14.9 | 29.5 | 42.6 | 26.7 | 15.7 | 0.2 | TR | --- |1.66| 1.72| 0.17 |16.0| 5.6|0.012 |Bt |10-19| 29.8| 51.2 | 22.0 | 29.2 | 19.0 | 15.1 | 3.8 | 0.1 | TR | --- |1.42| 1.59| 0.14 |22.2|12.1|0.038 |Bt1b|19-26| 34.6| 51.6 | 23.4 | 28.2 | 13.8 | 11.3 | 2.5 | TR | TR | TR |1.44| 1.67| 0.14 |22.9|13.1|0.051 |Bt2b|26-34| 32.6| 44.3 | 21.3 | 23.0 | 23.1 | 15.7 | 7.3 | 0.1 | TR | --- |1.53| 1.74| 0.13 |20.8|12.6|0.044 |Bt3b|34-51| 26.4| 35.0 | 13.4 | 21.6 | 38.6 | 24.1 | 14.3 | 0.2 | TR | --- |1.56| 1.86| 0.11 |16.4|10.0|0.032 |Bt4b|51-72| 23.6| 42.4 | 17.6 | 24.8 | 34.0 | 21.3 | 12.6 | 0.1 | TR | --- |1.59| 1.75| 0.13 |17.5| 9.3|0.032 |Btkb|72-82| 25.2| 45.0 | 20.4 | 24.6 | 29.8 | 18.5 | 9.3 | 0.8 | 0.7 | 0.5 |1.60| 1.73| 0.12 |17.3|10.0|0.026 |BCkb|82-89| 22.1| 27.6 | 15.2 | 12.4 | 50.3 | 26.7 | 21.0 | 1.2 | 0.7 | 0.7 |1.61| 1.75| 0.14 |17.1| 8.6|0.028 | | | | | | | | | | | | | | | | | | Lebron: |Ap | 0-5 | 64.2| 35.1 | 32.6 | 2.5 | 0.7 | 0.4 | 0.1 | 0.1 | 0.1 | --- |--- | --- | --- |--- |24.4| --- (S92OK-083-004)|Ad | 5-9 | 59.4| 40.5 | 38.4 | 2.1 | 0.1 | 0.1 | TR | TR | TR | --- |--- | --- | --- |--- |23.8| --- |A | 9-14| 60.0| 39.8 | 37.6 | 2.2 | 2.2 | 0.1 | 0.1 | TR | TR | --- |--- | --- | --- |--- |23.4| --- |C1 |14-18| 38.7| 59.8 | 34.3 | 25.5 | 1.5 | 1.3 | 0.1 | 0.1 | TR | --- |--- | --- | --- |--- |17.7| --- |C2 |18-28| 13.5| 65.3 | 23.2 | 42.1 | 21.2 |17.9 | 2.3 | 0.9 | 0.1 | TR |--- | --- | --- |--- | 7.5| --- | | | | | | | | | | | | | | | | | |
Logan County, Oklahoma 441 Physical Properties of Selected Soils—Continued ____________________________________________________________________________________________________________________________________ | | | Particle-size distribution | Bulk |Water | Water | _____________________________________________________________________ | | |Clay | Silt | Sand | density |reten- | content | __________________________________________________________________________ _________ Soil name and | HO |Depth|less |Total | Fine |Coarse|Total | Very | Fine |Medium|Coarse| Very | | |tion | | |COLE sample number | | |than |silt |(0.002-|(0.02-|sand | fine |(0.10-|(0.25-|(0.5- |coarse|1/3 |Oven-|differ-| 1/3| 15 | | | |0.002|(.002-| 0.02 | 0.05 |(0.05-|(0.05-|0.25 | 0.50 | 1 mm)|(2.0- |bar | dry |ence | bar| bar| | | | mm |0.05 | mm) | mm) | 2.0 | 0.10 | mm) | mm) | | 1.0 | | |1/3 bar| | | | | | | mm) | | | mm) | mm) | | | | mm) | | |15 bar | | | ____________________________________________________________________________________________________________________________________ | | In |--------------------------------Percent------------------------------|---g/cm3--| Cm/cm |Pct |Pct | __ _____________________________________________________________________ __________ _____ ___ ___ | | | | | | | | | | | | | | | | | | Masham: |A | 0-4 | 37.0| 43.4 | 25.0 | 18.4 | 19.6 | 13.4 | 4.1 | 0.9 | 0.8 | 0.4 |1.34| 1.50| 0.07 |19.2|13.6|0.036 (S91OK-083-008)|Bw | 4-8 | 34.8| 46.2 | 29.3 | 16.9 | 19.0 | 13.7 | 3.3 | 0.9 | 0.8 | 0.3 |1.60| 1.79| 0.11 |17.8|11.0|0.038 |BC | 8-13| 35.9| 42.5 | 28.2 | 14.3 | 21.6 | 14.9 | 4.9 | 0.7 | 0.7 | 0.4 |1.71| 1.90| 0.07 |16.0|11.8|0.036 |Cr1 |13-25| 33.8| 41.3 | 26.9 | 14.4 | 24.9 | 17.7 | 6.2 | 0.5 | 0.4 | 0.1 |1.85| 2.02| 0.04 |13.9|11.6|0.030 |Cr2 |25-39| 35.8| 38.8 | 25.8 | 13.1 | 25.4 | 15.4 | 5.4 | 1.4 | 2.3 | 0.9 |1.93| 2.10| 0.02 |13.7|12.5|0.029 |2Cr3|39-47| 32.2| 37.9 | 23.6 | 14.3 | 29.9 | 22.3 | 7.3 | 0.1 | 0.1 | 0.1 |1.90| 2.12| 0.07 |14.1|10.6|0.037 | | | | | | | | | | | | | | | | | | Mulhall: |Ap | 0-3 | 16.4| 42.3 | 12.7 | 29.6 | 41.3 | 25.0 | 15.7 | 0.4 | 0.1 | 0.1 |--- | --- | --- |--- | 8.4| --- (S91OK-083-002)|Ad | 3-7 | 22.9| 40.3 | 13.3 | 27.0 | 36.8 | 22.5 | 13.8 | 0.4 | 0.1 | TR |--- | --- | --- |--- | 9.9| --- |Bd | 7-11| 34.5| 34.5 | 17.2 | 17.3 | 31.0 | 22.4 | 7.8 | 0.4 | 0.3 | 0.1 |--- | --- | --- |--- |13.7| --- |Bt1 |11-19| 31.7| 39.3 | 17.5 | 21.8 | 29.0 | 17.5 | 10.9 | 0.4 | 0.1 | 0.1 |--- | --- | --- |--- |13.2| --- |Bt2 |19-23| 29.9| 28.6 | 12.6 | 16.0 | 41.5 | 22.9 | 17.9 | 0.4 | 0.2 | 0.1 |--- | --- | --- |--- |11.9| --- |2Bt3|23-40| 26.5| 21.1 | 8.2 | 12.9 | 52.4 | 26.7 | 25.2 | 0.3 | 0.1 | 0.1 |--- | --- | --- |--- |10.5| --- |2Bt4|40-54| 25.3| 17.9 | 7.4 | 10.5 | 56.8 | 32.8 | 23.4 | 0.3 | 0.2 | 0.1 |--- | --- | --- |--- |10.2| --- |2BC |54-68| 27.5| 16.8 | 5.4 | 11.4 | 55.7 | 30.1 | 25.2 | 0.2 | 0.1 | 0.1 |--- | --- | --- |--- |11.0| --- |3Bt1|68-76| 20.4| 22.1 | 8.1 | 14.0 | 57.5 | 32.3 | 23.2 | 1.2 | 0.7 | 0.1 |--- | --- | --- |--- | 8.6| --- |3BC |76-81| 16.8| 17.4 | 10.3 | 7.1 | 65.8 | 13.9 | 46.5 | 3.1 | 1.5 | 0.8 |--- | --- | --- |--- | 6.9| --- |3Cr |81-90| 7.6| 15.6 | 8.6 | 7.0 | 76.8 | 39.5 | 34.8 | 1.4 | 0.9 | 0.2 |--- | --- | --- |--- | 3.9| --- | | | | | | | | | | | | | | | | | | Mulhall: |Ap | 0-6 | 16.6| 33.9 | 12.0 | 21.9 | 49.5 | 28.7 | 20.4 | 0.2 | 0.1 | 0.1 |1.35| 1.42| 0.16 |20.9| 9.3|0.017 (S91OK-083-006)|A1 | 6-11| 18.0| 31.0 | 11.2 | 19.8 | 51.0 | 32.2 | 18.4 | 0.3 | 0.1 | TR |1.38| 1.48| 0.21 |22.5| 7.3|0.024 |BAt |11-17| 20.8| 31.0 | 10.1 | 20.9 | 48.2 | 28.4 | 19.5 | 0.2 | 0.1 | TR |1.37| 1.49| 0.22 |23.8| 8.1|0.028 |Bt1 |17-26| 27.0| 27.3 | 10.5 | 16.8 | 45.7 | 24.9 | 20.3 | 0.2 | 0.2 | 0.1 |1.42| 1.60| 0.17 |22.4|10.5|0.041 |Bt2 |26-31| 28.2| 21.4 | 9.2 | 12.2 | 50.4 | 25.0 | 25.1 | 0.1 | 0.1 | 0.1 |1.49| 1.67| 0.16 |21.8|10.9|0.039 |Bt3 |31-40| 27.8| 16.6 | 7.3 | 9.3 | 55.6 | 30.5 | 25.0 | 0.1 | TR | --- |1.59| 1.76| 0.13 |19.7|11.3|0.034 |2Bt4|40-51| 27.3| 15.0 | 6.2 | 8.8 | 57.7 | 30.1 | 27.2 | 0.2 | 0.1 | 0.1 |1.66| 1.78| 0.11 |17.9|11.1|0.024 |2Bt5|51-65| 25.9| 15.4 | 6.0 | 9.4 | 58.7 | 29.5 | 28.9 | 0.1 | 0.1 | 0.1 |1.66| 1.77| 0.12 |17.6|10.6|0.022 |2BC |65-70| 22.1| 16.1 | 5.8 | 10.3 | 61.8 | 40.0 | 21.4 | 0.2 | 0.1 | 0.1 |1.72| 1.82| 0.13 |17.1| 9.4|0.019 |2Cr |70-84| 17.0| 13.0 | 6.3 | 6.7 | 70.0 | 48.2 | 20.4 | 1.0 | 0.3 | 0.1 |1.84| 1.85| 0.04 | 9.9| 7.5|0.002 | | | | | | | | | | | | | | | | | | Piedmont: |A | 0-8 | 37.1| 47.1 | 18.1 | 29.0 | 15.8 | 9.0 | 5.0 | 1.8 | --- | --- |--- | --- | --- |--- |15.0| --- (S88OK-083-001)|Bt1 | 8-17| 45.4| 42.6 | 19.4 | 23.2 | 12.0 | 5.3 | 4.6 | 2.1 | --- | --- |--- | --- | --- |--- |17.1| --- |Bt2 |17-27| 45.9| 42.7 | 21.6 | 21.1 | 11.4 | 5.7 | 4.0 | 1.7 | --- | --- |--- | --- | --- |--- |16.8| --- |BC |27-32| 33.2| 59.9 | 34.3 | 25.6 | 6.9 | 3.1 | 1.8 | 1.1 | 0.5 | 0.4 |--- | --- | --- |--- |13.9| --- | | | | | | | | | | | | | | | | | | Piedmont: |A1 | 0-9 | 38.3| 53.9 | 19.7 | 34.2 | 7.8 | 6.3 | 1.3 | 0.2 | --- | --- |--- | --- | --- |--- |15.1| --- (S88OK-083-002)|Bt1 | 9-14| 57.9| 37.7 | 17.0 | 20.7 | 4.4 | 3.5 | 0.7 | 0.2 | --- | --- |--- | --- | --- |--- |19.3| --- |Bt2 |14-21| 61.4| 32.0 | 19.3 | 12.7 | 6.6 | 4.6 | 1.6 | 0.3 | 0.1 | --- |--- | --- | --- |--- |22.2| --- |BC |21-27| 43.2| 39.1 | 25.3 | 13.8 | 17.6 | 9.4 | 4.6 | 1.4 | 1.1 | 1.2 |--- | --- | --- |--- |19.8| --- | | | | | | | | | | | | | | | | | |
442 Soil Survey Physical Properties of Selected Soils—Continued ____________________________________________________________________________________________________________________________________ | | | Particle-size distribution | Bulk |Water | Water | _____________________________________________________________________ | | |Clay | Silt | Sand | density |reten- | content | __________________________________________________________________________ _________ Soil name and | HO |Depth|less |Total | Fine |Coarse|Total | Very | Fine |Medium|Coarse| Very | | |tion | | |COLE sample number | | |than |silt |(0.002-|(0.02-|sand | fine |(0.10-|(0.25-|(0.5- |coarse|1/3 |Oven-|differ-| 1/3| 15 | | | |0.002|(.002-| 0.02 | 0.05 |(0.05-|(0.05-|0.25 | 0.50 | 1 mm)|(2.0- |bar | dry |ence | bar| bar| | | | mm |0.05 | mm) | mm) | 2.0 | 0.10 | mm) | mm) | | 1.0 | | |1/3 bar| | | | | | | mm) | | | mm) | mm) | | | | mm) | | |15 bar | | | ____________________________________________________________________________________________________________________________________ | | In |--------------------------------Percent------------------------------|---g/cm3--| Cm/cm |Pct |Pct | __ _____________________________________________________________________ __________ _____ ___ ___ | | | | | | | | | | | | | | | | | | Stephenville: |A | 0-5 | 8.2| 18.9 | 6.2 | 12.7 | 72.9 | 32.7 | 38.1 | 1.5 | 0.3 | 0.3 |--- | --- | --- |--- | 3.8| --- (S89OK-083-003)|E | 5-8 | 10.9| 13.6 | 4.5 | 9.1 | 75.5 | 39.1 | 33.5 | 1.4 | 0.5 | 1.0 |--- | --- | --- |--- | 3.4| --- |Bt1 | 8-18| 29.3| 7.3 | 4.1 | 3.2 | 63.4 | 37.2 | 25.4 | 0.5 | 0.2 | 0.1 |--- | --- | --- |--- | 9.8| --- |Bt2 |18-25| 18.5| 9.2 | 4.5 | 4.7 | 72.1 | 45.0 | 26.8 | 0.3 | --- | --- |--- | --- | --- |--- | 6.4| --- | | | | | | | | | | | | | | | | | | Zaneis: |A | 0-10| 14.6| 42.2 | 15.7 | 26.5 | 43.2 | 23.4 | 19.3 | 0.4 | 0.1 | TR |--- | --- | --- |--- | 7.3| --- (S90OK-083-001)|BA |10-17| 20.2| 39.5 | 15.6 | 23.9 | 40.3 | 21.9 | 17.9 | 0.4 | 0.1 | TR |--- | --- | --- |--- | 9.2| --- |Bt1 |17-28| 28.9| 33.9 | 17.6 | 16.3 | 37.2 | 18.5 | 17.8 | 0.5 | 0.3 | 0.1 |--- | --- | --- |--- |12.2| --- |Bt2 |28-38| 34.0| 25.9 | 14.3 | 11.6 | 40.1 | 20.3 | 19.2 | 0.3 | 0.2 | 0.1 |--- | --- | --- |--- |12.8| --- |BCt |38-44| 27.0| 18.1 | 8.5 | 9.6 | 54.9 | 35.7 | 19.1 | 0.1 | TR | --- |--- | --- | --- |--- |10.8| --- | | | | | | | | | | | | | | | | | | Zaneis: |Ap | 0-4 | 11.5| 24.3 | 9.1 | 15.2 | 64.2 | 20.6 | 43.0 | 0.5 | 0.1 | TR |1.23| 1.33| 0.19 |22.2| 6.8|0.026 (S90OK-083-003)|Ad | 4-6 | 14.1| 25.9 | 9.6 | 16.3 | 60.0 | 19.1 | 40.4 | 0.4 | 0.1 | TR |1.40| 1.48| 0.20 |20.8| 6.4|0.019 |BA | 6-11| 16.4| 25.8 | 9.6 | 16.2 | 57.8 | 17.5 | 39.8 | 0.4 | 0.1 | TR |1.44| 1.54| 0.19 |20.4| 7.1|0.023 |Bt1 |11-18| 21.9| 22.6 | 9.1 | 13.5 | 55.5 | 18.9 | 35.9 | 0.4 | 0.2 | 0.1 |1.47| 1.64| 0.17 |20.6| 9.2|0.037 |Bt2 |18-25| 25.5| 19.4 | 8.0 | 11.4 | 55.1 | 19.8 | 34.7 | 0.4 | 0.1 | 0.1 |1.51| 1.66| 0.14 |19.6|10.4|0.032 |Bt3 |25-35| 18.7| 11.5 | 3.9 | 7.6 | 69.8 | 22.7 | 46.6 | 0.2 | 0.1 | 0.2 |1.54| 1.63| 0.11 |14.9| 7.7|0.019 |BC |35-43| 15.6| 7.7 | 3.0 | 4.7 | 76.7 | 19.9 | 56.7 | 0.1 | TR | TR |1.60| 1.67| 0.08 |11.0| 6.2|0.014 |Cr |43-54| 17.2| 6.1 | 1.3 | 4.8 | 76.7 | 36.5 | 40.2 | TR | TR | --- |--- | --- | --- |--- | 7.2| --- |R |54-67| ---| --- | --- | --- | --- | --- | --- | --- | --- | --- |--- | --- | --- |--- | 4.1| --- | | | | | | | | | | | | | | | | | | ____________________________________________________________________________________________________________________________________ Location of sampled pedons: Bathel loamy fine sand (S92OK-083-006); about 1,800 feet east and 2,000 feet south of the northwest corner sec. 7, T. 17 N., R. 4 W. Bethany silt loam (S89OK-083-001); about 2,375 feet west and 1,150 feet south of the northeast corner sec. 23, T. 19 N., R. 2 W. (Inclusion of similar soil in map unit BetA; exchangeable sodium percentage and sodium adsorption ratio are higher than the normal range for the Bethany series.) Coyle loam (S92OK-083-001); about 1,450 feet east and 1,600 north of the southwest corner of sec. 34, T. 17 N., R. 2 W. (Lab data reflect that the surface layer is slightly outside the normal loam texture, but the data is within the normal range for laboratory error.) Darsil loamy fine sand (S91OK-083-007); about 650 feet east and 300 feet south of the northwest corner of sec. 35, T. 15 N., R. 1 W. (The pH of the A and EC horizons is slightly too low for the series.) Ironmound very fine sandy loam (S92OK-083-005); about 700 feet west and 1,050 feet north of the southeast corner of sec. 30, T. 19 N., R. 4 W. Kingfisher loam (S90OK-083-004); about 1,500 feet west and 100 north of the southeast corner of sec. 36, T. 20 N., R. 2 W. (Inclusion to the map unit CoIC2; mineralogy is siliceous and is outside the range of the series.)
Logan County, Oklahoma 443 Physical Properties of Selected Soils—Continued Location of sampled pedons: Kingfisher loam (S90OK-083-005); about 450 feet south and 100 east of the northwest corner of sec. 5, T. 19 N., R. 2 W. (The pH of the surface layer is slightly high for the series due to the addition of acid-forming fertilizer.) Kirkland silt loam (S89OK-083-002); about 2,350 feet south and 2,450 feet east of the northwest corner sec. 16, T. 19 N., R. 4 W. (Inclusion of similar soil in map unit KirB; exchangeable sodium percentage and sodium adsorption ratio are higher than the normal range for the series.) Kirkland silt loam (S91OK-083-005); about l,000 feet north and l50 feet west of the southeast corner of sec. 36, T. l6 N., R. 4 W. (The reaction is slightly outside of the range of the series because of the addition of acid-forming fertilizer.) Lawrie loam (S91OK-083-004); about 1,800 feet east and 700 feet south of the northeast corner of sec. 27, T. 17 N., R. 1 W. Lebron clay (S92OK-083-004); about 3,800 feet east and 1,200 feet south of the northwest corner of sec. 9, T. 17 N., R. 2 W. (This is the type location for the series.) Masham silty clay loam (S91OK-083-008); about 1,200 feet east and 300 feet south of the northwest corner of sec. 35, T. 15 N., R. 1 W. Mulhall loam (S91OK-083-002); about 1,000 feet west and 100 feet north of the southeast corner of sec. 18, R. 18 W., T. 2 W. Mulhall loam (S91OK-083-006); about 1,250 feet east and 800 feet south of the northwest corner of sec. 19, R. 19 N., T. 2 W. Piedmont silty clay loam (S88OK-083-001); about 200 feet east and 150 feet south of the northwest corner of sec. 18, T. 18 N., R. 4 W. Piedmont silty clay loam (S88OK-083-002); about 1,800 feet east and 100 feet south of the northwest corner of sec. 18, T. 18 N., R. 4 W. (The clay content is higher than is allowed by the series.) Stephenville fine sandy loam (S89OK-083-003); about 600 feet west and 950 feet north of the southeast corner of sec. 12, T. 15 N., R. 2 W. (The base saturation of the lower part of the argillic horizon is 76, which is outside the range of the series, and the pH is slightly higher than is allowed by the series. These data, however, are within the normal range for laboratory error.) Zaneis loam (S90OK-083-001); about 100 feet east and 100 feet south of the northwest corner of sec. 35, T. 19 N., R. 2 W. Zaneis fine sandy loam (S91OK-083-003); about 5,000 feet west and 2,500 feet north of the southeast corner of sec. 30, T. 18 N., R. 2 W. (The surface layer of fine sandy loam is not typical for the map unit ZanB but is within the range of the Zaneis series. This pedon is an inclusion to the map unit ZanB.)
444 Soil Survey

Chemical Properties

The table “Chemical Properties of the Soils” shows estimates of some

characteristics and features that affect soil behavior. These estimates are given for the

major layers of each soil in the survey area. The estimates are based on field

observations and on test data for these and similar soils.

Depth to the upper and lower boundaries of each layer is indicated. The range in

depth and information on other properties of each layer are given in the section “Soil

Series and Their Morphology.”

Cation-exchange capacity is the total amount of exchangeable cations that can be

held by the soil, expressed in terms of milliequivalents per 100 grams of soil at

neutrality (pH 7.0) or at some other stated pH value. Soils having a low cationexchange capacity hold fewer cations and may require more frequent applications of

fertilizer than soils having a high cation-exchange capacity. Soils having a high cationexchange capacity can retain cations. The ability to retain cations helps to prevent the

pollution of ground water.

Soil reaction is a measure of acidity or alkalinity and is expressed as a range in pH

values. The range in pH of each major horizon is based on many field tests. For many

soils, values have been verified by laboratory analyses. Soil reaction is important in

selecting crops and other plants, in evaluating soil amendments for fertility and

stabilization, and in determining the risk of corrosion.

Calcium carbonate equivalent is the percent of carbonates, by weight, in the soil.

The availability of plant nutrients is influenced by the amount of carbonates in the soil.

Incorporating nitrogen fertilizer into calcareous soils helps to prevent nitrite

accumulation and ammonium-N volatilization.

Gypsum is given as the percent, by weight, of hydrated calcium sulfates in the soil.

Gypsum is partially soluble in water and can be dissolved and removed by water. Soils

that have a high content of gypsum (more than 10 percent) may collapse if the

gypsum is removed by percolating water.

Salinity is a measure of soluble salts in the soil at saturation. It is expressed as the

electrical conductivity of the saturation extract, in millimhos per centimeter

(decisiemens per meter) at 25 degrees C. Estimates are based on field and laboratory

measurements at representative sites of nonirrigated soils. The salinity of irrigated

soils is affected by the quality of the irrigation water and by the frequency of water

application. Hence, the salinity of soils in individual fields can differ greatly from the

value given in the table. Salinity affects the suitability of a soil for crop production, the

stability of the soil if used as construction material, and the potential of the soil to

corrode metal and concrete.

Sodium adsorption ratio is the measure of sodium relative to calcium and

magnesium in the water extract from saturated soil paste. Soils having a sodium

adsorption ratio of 13 or more may be characterized by an increased dispersion of

organic matter and clay particles, reduced permeability and aeration, and a general

degradation of soil structure.
Logan County, Oklahoma 445

Chemical Properties of the Soils

(Absence of an entry indicates that data were not estimated)

__________________________________________________________________________________________

 | | | | | | |

 Map symbol | Depth | Cation- | Soil |Calcium| Gypsum | Salinity | Sodium

 and soil name | |exchange |reaction |carbon-| | | adsorp-

 | |capacity | | ate | | | tion

 | | | | | | | ratio __________________________________________________________________________________________

 | In |meq/100 g| pH | Pct | Pct | mmhos/cm | __ _________ __ ___ ___ ________

 | | | | | | |

AspA: | | | | | | |

 Ashport--------------| 0-10 | 9.0-16 | 5.6-8.4 | 0 | 0 | 0 | 0

 | 10-22 | 11-21 | 6.1-8.4 | 0-1 | 0 | 0 | 0

 | 22-44 | 11-21 | 6.1-8.4 | 0-1 | 0 | 0 | 0

 | 44-80 | 11-21 | 7.3-8.4 | 0-1 | 0 | 0 | 0

 | | | | | | |

AstA: | | | | | | |

 Ashport--------------| 0-11 | 9.0-16 | 5.6-8.4 | 0 | 0 | 0 | 0

 | 11-30 | 11-21 | 6.1-8.4 | 0-1 | 0 | 0 | 0

 | 30-36 | 11-21 | 6.1-8.4 | 0-1 | 0 | 0 | 0

 | 36-52 | 11-21 | 6.1-8.4 | 0-1 | 0 | 0 | 0

 | 52-67 | 11-21 | 7.3-8.4 | 0-1 | 0 | 0 | 0

 | 67-80 | 11-21 | 7.3-8.4 | 0-1 | 0 | 0 | 0

 | | | | | | |

BetA: | | | | | | |

 Bethany--------------| 0-8 | 10-16 | 5.1-7.8 | 0 | 0 | 0 | 0

 | 8-18 | 17-21 | 6.1-7.8 | 0 | 0 | 0 | 0

 | 18-28 | 17-21 | 6.1-7.8 | 0 | 0 | 0 | 0

 | 28-46 | 21-30 | 6.6-8.4 | 0-2 | 0 | 0 | 0

 | 46-62 | 21-30 | 6.6-8.4 | 0-2 | 0 | 0 | 0

 | 62-80 | 21-30 | 6.6-8.4 | 0-10 | 0 | 0.0-2.0 | 0-4

 | | | | | | |

BetB: | | | | | | |

 Bethany--------------| 0-10 | 10-16 | 5.1-7.8 | 0 | 0 | 0 | 0

 | 10-22 | 17-21 | 6.1-7.8 | 0 | 0 | 0 | 0

 | 22-31 | 21-30 | 6.6-8.4 | 0 | 0 | 0 | 0

 | 31-51 | 21-30 | 6.6-8.4 | 0-2 | 0 | 0 | 0

 | 51-74 | 21-30 | 6.6-8.4 | 0-2 | 0 | 0 | 0

 | 74-80 | 21-30 | 6.6-8.4 | 0-10 | 0 | 0.0-2.0 | 0-4

 | | | | | | |

BocA: | | | | | | |

 Bocox----------------| 0-11 | 2.0-7.0 | 6.6-7.8 | 0 | 0 | 0.0-2.0 | 0

 | 11-20 | 2.0-7.0 | 6.6-7.8 | 0 | 0 | 0.0-2.0 | 0

 | 20-33 | 2.0-7.0 | 6.6-7.8 | 0 | 0 | 0.0-2.0 | 0

 | 33-52 | 11-21 | 6.6-7.8 | 0 | 0 | 0.0-2.0 | 0

 | 52-65 | 11-21 | 6.6-7.8 | 0 | 0 | 0.0-2.0 | 0

 | 65-80 | 11-21 | 6.6-7.8 | 0 | 0 | 0.0-2.0 | 0

 | | | | | | |

BtlA: | | | | | | |

 Bathel---------------| 0-12 | 2.0-7.0 | 5.6-7.3 | 0 | 0 | 0.0-2.0 | 0

 | 12-18 | 2.0-11 | 5.1-7.3 | 0 | 0 | 0.0-2.0 | 0

 | 18-22 | 12-21 | 6.6-8.4 | 0-2 | 0 | 0.0-2.0 | 0

 | 22-45 | 11-27 | 7.4-8.4 | 0-2 | 0 | 0.0-2.0 | 0

 | 45-80 | 2.0-11 | 7.4-8.4 | 0-2 | 0 | 0.0-2.0 | 0

 | | | | | | |

CaaA: | | | | | | |

 Canadian-------------| 0-10 | 3.0-11 | 5.6-7.8 | 0 | 0 | 0 | 0

 | 10-19 | 3.0-11 | 5.6-7.8 | 0 | 0 | 0 | 0

 | 19-31 | 6.0-11 | 6.1-8.4 | 0 | 0 | 0 | 0

 | 31-41 | 6.0-11 | 6.1-8.4 | 0 | 0 | 0 | 0

 | 41-55 | 3.0-11 | 6.1-8.4 | 0 | 0 | 0 | 0

 | 55-80 | 3.0-11 | 6.1-8.4 | 0 | 0 | 0 | 0

 | | | | | | |
446 Soil Survey

Chemical Properties of the Soils—Continued

__________________________________________________________________________________________

 | | | | | | |

 Map symbol | Depth | Cation- | Soil |Calcium| Gypsum | Salinity | Sodium

 and soil name | |exchange |reaction |carbon-| | | adsorp-

 | |capacity | | ate | | | tion

 | | | | | | | ratio __________________________________________________________________________________________

 | In |meq/100 g| pH | Pct | Pct | mmhos/cm | __ _________ __ ___ ___ ________

 | | | | | | |

CAID: | | | | | | |

 Coyle----------------| 0-10 | 10-16 | 5.6-7.8 | 0 | 0 | 0 | 0

 | 10-19 | 13-21 | 5.6-7.8 | 0 | 0 | 0 | 0

 | 19-36 | 11-21 | 5.6-7.8 | 0 | 0 | 0 | 0

 | 36-40 | --- | --- | --- | --- | --- | ---

 | | | | | | |

 Ashport--------------| 0-11 | 9.0-16 | 5.6-8.4 | 0 | 0 | 0 | 0

 | 11-26 | 11-21 | 6.1-8.4 | 0-1 | 0 | 0 | 0

 | 26-46 | 11-21 | 6.1-8.4 | 0-1 | 0 | 0 | 0

 | 46-63 | 11-21 | 7.3-8.4 | 0-1 | 0 | 0 | 0

 | 63-80 | 11-21 | 7.3-8.4 | 0-1 | 0 | 0 | 0

 | | | | | | |

 Ironmound------------| 0-6 | 10-15 | 5.6-8.4 | 0 | 0 | 0 | 0

 | 6-18 | 10-21 | 6.1-8.4 | 0 | 0 | 0 | 0

 | 18-24 | --- | --- | --- | --- | --- | ---

 | | | | | | |

CoIC2: | | | | | | |

 Coyle----------------| 0-11 | 10-16 | 5.6-7.8 | 0 | 0 | 0 | 0

 | 11-26 | 13-21 | 5.6-7.8 | 0 | 0 | 0 | 0

 | 26-37 | 11-21 | 5.6-7.8 | 0 | 0 | 0 | 0

 | 37-40 | --- | --- | --- | --- | --- | ---

 | | | | | | |

 Ironmound------------| 0-5 | 10-15 | 5.6-8.4 | 0 | 0 | 0 | 0

 | 5-17 | 10-21 | 6.1-8.4 | 0 | 0 | 0 | 0

 | 17-24 | --- | --- | --- | --- | --- | ---

 | | | | | | |

CoUB: | | | | | | |

 Coyle----------------| 0-8 | 10-16 | 5.6-7.8 | 0 | 0 | 0 | 0

 | 8-14 | 11-16 | 5.6-7.8 | 0 | 0 | 0 | 0

 | 14-22 | 13-21 | 5.6-7.8 | 0 | 0 | 0 | 0

 | 22-30 | --- | --- | --- | --- | --- | ---

 | | | | | | |

 Urban land. | | | | | | |

 | | | | | | |

CoUC: | | | | | | |

 Coyle----------------| 0-8 | 10-16 | 5.6-7.8 | 0 | 0 | 0 | 0

 | 8-12 | 11-16 | 5.6-7.8 | 0 | 0 | 0 | 0

 | 12-22 | 13-21 | 5.6-7.8 | 0 | 0 | 0 | 0

 | 22-29 | 11-21 | 5.6-7.8 | 0 | 0 | 0 | 0

 | 29-40 | --- | --- | --- | --- | --- | ---

 | | | | | | |

 Urban land. | | | | | | |

 | | | | | | |

CoyB: | | | | | | |

 Coyle----------------| 0-6 | 10-16 | 5.6-7.8 | 0 | 0 | 0 | 0

 | 6-11 | 11-16 | 5.6-7.8 | 0 | 0 | 0 | 0

 | 11-18 | 13-21 | 5.6-7.8 | 0 | 0 | 0 | 0

 | 18-25 | 11-21 | 5.6-7.8 | 0 | 0 | 0 | 0

 | 25-31 | 11-21 | 5.6-7.8 | 0 | 0 | 0 | 0

 | 31-42 | --- | --- | --- | --- | --- | ---

 | | | | | | |

CoyC2: | | | | | | |

 Coyle----------------| 0-5 | 10-16 | 5.6-7.8 | 0 | 0 | 0 | 0

 | 5-10 | 11-16 | 5.6-7.8 | 0 | 0 | 0 | 0

 | 10-14 | 13-21 | 5.6-7.8 | 0 | 0 | 0 | 0

 | 14-18 | 13-21 | 5.6-7.8 | 0 | 0 | 0 | 0

 | 18-27 | 11-21 | 5.6-7.8 | 0 | 0 | 0 | 0

 | 27-37 | --- | --- | --- | --- | --- | ---

 | | | | | | |
Logan County, Oklahoma 447

Chemical Properties of the Soils—Continued

__________________________________________________________________________________________

 | | | | | | |

 Map symbol | Depth | Cation- | Soil |Calcium| Gypsum | Salinity | Sodium

 and soil name | |exchange |reaction |carbon-| | | adsorp-

 | |capacity | | ate | | | tion

 | | | | | | | ratio __________________________________________________________________________________________

 | In |meq/100 g| pH | Pct | Pct | mmhos/cm | __ _________ __ ___ ___ ________

 | | | | | | |

CoZC3: | | | | | | |

 Coyle----------------| 0-6 | 10-16 | 5.6-7.8 | 0 | 0 | 0 | 0

 | 6-18 | 13-21 | 5.6-7.8 | 0 | 0 | 0 | 0

 | 18-31 | 11-21 | 5.6-7.8 | 0 | 0 | 0 | 0

 | 31-40 | --- | --- | --- | --- | --- | ---

 | | | | | | |

 Zaneis---------------| 0-5 | 10-16 | 5.6-7.3 | 0 | 0 | 0 | 0

 | 5-15 | 11-18 | 5.6-7.3 | 0 | 0 | 0 | 0

 | 15-35 | 13-23 | 5.6-7.3 | 0 | 0 | 0 | 0

 | 35-47 | 11-18 | 6.1-7.8 | 0 | 0 | 0 | 0

 | 47-60 | --- | --- | --- | --- | --- | ---

 | | | | | | |

DAM. | | | | | | |

 Dam | | | | | | |

 | | | | | | |

DerB: | | | | | | |

 Derby----------------| 0-11 | 2.0-6.0 | 5.6-7.8 | 0 | 0 | 0 | 0

 | 11-30 | 2.0-6.0 | 5.6-7.8 | 0 | 0 | 0 | 0

 | 30-52 | 1.0-7.0 | 5.6-7.8 | 0 | 0 | 0 | 0

 | 52-84 | 1.0-7.0 | 5.6-8.4 | 0 | 0 | 0 | 0

 | | | | | | |

DerD: | | | | | | |

 Derby----------------| 0-9 | 2.0-6.0 | 5.6-7.8 | 0 | 0 | 0 | 0

 | 9-23 | 1.0-7.0 | 5.6-7.8 | 0 | 0 | 0 | 0

 | 23-49 | 1.0-7.0 | 5.6-7.8 | 0 | 0 | 0 | 0

 | 49-80 | 1.0-7.0 | 5.6-8.4 | 0 | 0 | 0 | 0

 | | | | | | |

DerE: | | | | | | |

 Derby----------------| 0-11 | 2.0-6.0 | 5.6-7.8 | 0 | 0 | 0 | 0

 | 11-20 | 1.0-7.0 | 5.6-7.8 | 0 | 0 | 0 | 0

 | 20-38 | 1.0-7.0 | 5.6-7.8 | 0 | 0 | 0 | 0

 | 38-54 | 1.0-7.0 | 5.6-7.8 | 0 | 0 | 0 | 0

 | 54-80 | 1.0-7.0 | 5.6-8.4 | 0 | 0 | 0 | 0

 | | | | | | |

DiRG: | | | | | | |

 Darsil---------------| 0-4 | 1.0-6.0 | 5.1-7.8 | 0 | 0 | 0 | 0

 | 4-16 | 1.0-6.0 | 5.1-7.8 | 0 | 0 | 0 | 0

 | 16-24 | --- | --- | --- | --- | --- | ---

 | | | | | | |

 Rock outcrop. | | | | | | |

 | | | | | | |

DouB: | | | | | | |

 Dougherty------------| 0-13 | 2.0-7.0 | 5.1-6.5 | 0 | 0 | 0 | 0

 | 13-26 | 2.0-7.0 | 5.1-6.5 | 0 | 0 | 0 | 0

 | 26-43 | 11-18 | 5.1-6.5 | 0 | 0 | 0 | 0

 | 43-52 | 11-18 | 5.1-6.5 | 0 | 0 | 0 | 0

 | 52-64 | 8.0-15 | 5.1-6.5 | 0 | 0 | 0 | 0

 | 64-80 | 2.0-10 | 5.1-7.3 | 0 | 0 | 0 | 0

 | | | | | | |

DouD: | | | | | | |

 Dougherty------------| 0-9 | 2.0-7.0 | 5.1-6.5 | 0 | 0 | 0 | 0

 | 9-22 | 2.0-7.0 | 5.1-6.5 | 0 | 0 | 0 | 0

 | 22-32 | 11-18 | 5.1-6.5 | 0 | 0 | 0 | 0

 | 32-44 | 8.0-15 | 5.1-6.5 | 0 | 0 | 0 | 0

 | 44-80 | 2.0-10 | 5.1-7.3 | 0 | 0 | 0 | 0

 | | | | | | |

DUM. | | | | | | |

 Dumps | | | | | | |

 | | | | | | |
448 Soil Survey

Chemical Properties of the Soils—Continued

__________________________________________________________________________________________

 | | | | | | |

 Map symbol | Depth | Cation- | Soil |Calcium| Gypsum | Salinity | Sodium

 and soil name | |exchange |reaction |carbon-| | | adsorp-

 | |capacity | | ate | | | tion

 | | | | | | | ratio __________________________________________________________________________________________

 | In |meq/100 g| pH | Pct | Pct | mmhos/cm | __ _________ __ ___ ___ ________

 | | | | | | |

EasA: | | | | | | |

 Easpur---------------| 0-12 | 8.0-16 | 5.6-8.4 | 0 | 0 | 0 | 0

 | 12-18 | 8.0-16 | 5.6-8.4 | 0 | 0 | 0 | 0

 | 18-36 | 11-21 | 6.1-8.4 | 0 | 0 | 0 | 0

 | 36-62 | 11-21 | 6.1-8.4 | 0 | 0 | 0 | 0

 | 62-80 | 11-21 | 6.1-8.4 | 0-2 | 0 | 0 | 0

 | | | | | | |

GadA: | | | | | | |

 Gaddy----------------| 0-12 | 4.0-10 | 7.4-8.4 | 0-2 | 0 | 0 | 0

 | 12-29 | 4.0-10 | 7.9-8.4 | 1-5 | 0 | 0 | 0

 | 29-80 | 4.0-10 | 7.9-8.4 | 1-5 | 0 | 0 | 0

 | | | | | | |

GaGA: | | | | | | |

 Gaddy----------------| 0-6 | 7.0-12 | 7.4-8.4 | 0-2 | 0 | 0 | 0

 | 6-80 | 4.0-10 | 7.9-8.4 | 1-5 | 0 | 0 | 0

 | | | | | | |

 Gracemore------------| 0-12 | 10-17 | 7.4-8.4 | 0-1 | 0 | 0.0-4.0 | 0

 | 12-80 | 2.0-7.0 | 7.9-8.4 | 0-1 | 0 | 0.0-4.0 | 0

 | | | | | | |

GMGE4: | | | | | | |

 Grainola-------------| 0-4 | 17-21 | 6.6-8.4 | 0-2 | 0 | 0 | 0

 | 4-15 | 21-36 | 7.9-8.4 | 0-5 | 0 | 0 | 0

 | 15-31 | 21-36 | 7.9-8.4 | 0-10 | 0 | 0 | 0

 | 31-38 | 21-36 | 7.9-8.4 | 0-10 | 0 | 0 | 0

 | 38-40 | --- | --- | 0 | 0 | --- | 0

 | | | | | | |

 Masham---------------| 0-5 | 21-24 | 7.9-8.4 | 0-5 | 0 | 0 | 0

 | 5-16 | 21-36 | 7.9-8.4 | 0-5 | 0 | 0 | 0

 | 16-35 | --- | --- | --- | --- | --- | ---

 | | | | | | |

 Gullied land. | | | | | | |

 | | | | | | |

GMLG: | | | | | | |

 Grainola-------------| 0-5 | 9.0-15 | 6.6-8.4 | 0 | 0 | 0 | 0

 | 5-24 | 21-35 | 7.9-8.4 | 0 | 0 | 0 | 0

 | 24-30 | 21-35 | 7.9-8.4 | 0 | 0 | 0 | 0

 | 30-40 | --- | --- | --- | --- | --- | ---

 | | | | | | |

 Masham---------------| 0-4 | 21-24 | 7.9-8.4 | 0-5 | 0 | 0 | 0

 | 4-13 | 21-36 | 7.9-8.4 | 0-5 | 0 | 0 | 0

 | 13-25 | --- | --- | --- | --- | --- | ---

 | | | | | | |

 Lucien---------------| 0-6 | 9.0-15 | 5.6-7.3 | 0 | 0 | 0 | 0

 | 6-17 | 0.0-0.0 | 5.6-7.3 | 0 | 0 | 0 | 0

 | 17-30 | --- | --- | --- | --- | --- | ---

 | | | | | | |

GohC: | | | | | | |

 Goodnight------------| 0-9 | 4.0-8.0 | 6.1-8.4 | 0-2 | 0 | 0 | 0

 | 9-18 | 4.0-8.0 | 6.1-8.4 | 0-2 | 0 | 0 | 0

 | 18-25 | 4.0-8.0 | 6.1-8.4 | 0-2 | 0 | 0 | 0

 | 25-64 | 4.0-8.0 | 6.1-8.4 | 0-2 | 0 | 0 | 0

 | 64-80 | 4.0-8.0 | 6.1-8.4 | 0-2 | 0 | 0 | 0

 | | | | | | |

GohE: | | | | | | |

 Goodnight------------| 0-10 | 4.0-8.0 | 6.1-8.4 | 0-2 | 0 | 0 | 0

 | 10-22 | 4.0-8.0 | 6.1-8.4 | 0-2 | 0 | 0 | 0

 | 22-32 | 4.0-8.0 | 6.1-8.4 | 0-2 | 0 | 0 | 0

 | 32-52 | 4.0-8.0 | 6.1-8.4 | 0-2 | 0 | 0 | 0

 | 52-80 | 4.0-8.0 | 6.1-8.4 | 0-2 | 0 | 0 | 0

 | | | | | | |
Logan County, Oklahoma 449

Chemical Properties of the Soils—Continued

__________________________________________________________________________________________

 | | | | | | |

 Map symbol | Depth | Cation- | Soil |Calcium| Gypsum | Salinity | Sodium

 and soil name | |exchange |reaction |carbon-| | | adsorp-

 | |capacity | | ate | | | tion

 | | | | | | | ratio __________________________________________________________________________________________

 | In |meq/100 g| pH | Pct | Pct | mmhos/cm | __ _________ __ ___ ___ ________

 | | | | | | |

GooE: | | | | | | |

 Goodnight------------| 0-6 | 2.0-7.0 | 6.1-8.4 | 0-2 | 0 | 0 | 0

 | 6-20 | 4.0-8.0 | 6.1-8.4 | 0-2 | 0 | 0 | 0

 | 20-80 | 4.0-8.0 | 6.1-8.4 | 0-2 | 0 | 0 | 0

 | | | | | | |

GooG: | | | | | | |

 Goodnight------------| 0-8 | 2.0-7.0 | 6.1-8.4 | 0-2 | 0 | 0 | 0

 | 8-23 | 4.0-8.0 | 6.1-8.4 | 0-2 | 0 | 0 | 0

 | 23-45 | 4.0-8.0 | 6.1-8.4 | 0-2 | 0 | 0 | 0

 | 45-80 | 4.0-8.0 | 6.1-8.4 | 0-2 | 0 | 0 | 0

 | | | | | | |

GraC: | | | | | | |

 Grainola-------------| 0-5 | 17-21 | 6.6-8.4 | 0-2 | 0 | 0 | 0

 | 5-18 | 21-36 | 7.9-8.4 | 0-5 | 0 | 0 | 0

 | 18-27 | 21-36 | 7.9-8.4 | 0-10 | 0 | 0 | 0

 | 27-32 | 21-36 | 7.9-8.4 | 0-10 | 0 | 0 | 0

 | 32-42 | --- | --- | 0 | 0 | --- | 0

 | | | | | | |

GraD2: | | | | | | |

 Grainola-------------| 0-4 | 17-21 | 6.6-8.4 | 0-2 | 0 | 0 | 0

 | 4-26 | 21-36 | 7.9-8.4 | 0-5 | 0 | 0 | 0

 | 26-38 | 21-36 | 7.9-8.4 | 0-10 | 0 | 0 | 0

 | 38-48 | --- | --- | 0 | 0 | --- | 0

 | | | | | | |

GrHC: | | | | | | |

 Grant----------------| 0-7 | 10-16 | 6.1-7.8 | 0 | 0 | 0 | 0

 | 7-11 | 10-16 | 6.1-7.8 | 0 | 0 | 0 | 0

 | 11-17 | 11-21 | 6.1-8.4 | 0 | 0 | 0 | 0

 | 17-35 | 11-21 | 6.1-8.4 | 0-2 | 0 | 0 | 0

 | 35-54 | 11-21 | 6.1-8.4 | 0-2 | 0 | 0 | 0

 | 54-58 | --- | --- | 0-5 | --- | --- | ---

 | | | | | | |

 Huska----------------| 0-6 | 8.0-16 | 5.6-7.8 | 0 | 0 | 0.0-8.0 | 8-18

 | 6-17 | 21-27 | 6.6-8.4 | 0-2 | 0-2 | 2.0-16.0 | 15-55

 | 17-32 | 21-36 | 7.4-8.4 | 0-2 | 0-2 | 2.0-16.0 | 15-55

 | 32-40 | 21-36 | 7.4-8.4 | 0-2 | 0-2 | 2.0-16.0 | 15-55

 | 40-50 | 21-36 | 7.4-8.4 | 0-2 | 0-2 | 2.0-16.0 | 15-55

 | 50-54 | --- | --- | --- | --- | --- | ---

 | | | | | | |

GrIE: | | | | | | |

 Grainola-------------| 0-7 | 17-21 | 6.6-8.4 | 0-2 | 0 | 0 | 0

 | 7-12 | 21-36 | 7.9-8.4 | 0-5 | 0 | 0 | 0

 | 12-27 | 21-36 | 7.9-8.4 | 0-10 | 0 | 0 | 0

 | 27-38 | 21-36 | 7.9-8.4 | 0-10 | 0 | 0 | 0

 | 38-46 | --- | --- | 0 | 0 | --- | ---

 | | | | | | |

 Ironmound------------| 0-7 | 7.0-11 | 5.6-8.4 | 0 | 0 | 0 | 0

 | 7-18 | 10-17 | 6.1-8.4 | 0 | 0 | 0 | 0

 | 18-22 | --- | --- | --- | --- | --- | ---

 | | | | | | |

GrLE: | | | | | | |

 Grainola-------------| 0-8 | 17-21 | 6.6-8.4 | 0-2 | 0 | 0 | 0

 | 8-20 | 21-36 | 7.9-8.4 | 0-5 | 0 | 0 | 0

 | 20-27 | 21-36 | 7.9-8.4 | 0-10 | 0 | 0 | 0

 | 27-30 | --- | --- | 0 | 0 | --- | 0

 | | | | | | |

 Lucien---------------| 0-7 | 9.0-15 | 5.6-7.3 | 0 | 0 | 0 | 0

 | 7-12 | 0.0-0.0 | 5.6-7.3 | 0 | 0 | 0 | 0

 | 12-15 | --- | --- | --- | --- | --- | ---

 | | | | | | |
450 Soil Survey

Chemical Properties of the Soils—Continued

__________________________________________________________________________________________

 | | | | | | |

 Map symbol | Depth | Cation- | Soil |Calcium| Gypsum | Salinity | Sodium

 and soil name | |exchange |reaction |carbon-| | | adsorp-

 | |capacity | | ate | | | tion

 | | | | | | | ratio __________________________________________________________________________________________

 | In |meq/100 g| pH | Pct | Pct | mmhos/cm | __ _________ __ ___ ___ ________

 | | | | | | |

HaGD4: | | | | | | |

 Harrah---------------| 0-4 | 7.0-11 | 4.5-7.3 | 0 | 0 | 0 | 0

 | 4-22 | 11-21 | 4.5-7.3 | 0 | 0 | 0 | 0

 | 22-42 | 11-21 | 4.5-7.3 | 0 | 0 | 0 | 0

 | 42-54 | 11-21 | 4.5-7.3 | 0 | 0 | 0 | 0

 | 54-72 | 11-21 | 4.5-7.3 | 0 | 0 | 0 | 0

 | 72-80 | 11-21 | 4.5-7.3 | 0 | 0 | 0 | 0

 | | | | | | |

 Gullied land. | | | | | | |

 | | | | | | |

HarC: | | | | | | |

 Harrah---------------| 0-7 | 7.0-11 | 4.5-7.3 | 0 | 0 | 0 | 0

 | 7-16 | 4.0-11 | 4.5-7.3 | 0 | 0 | 0 | 0

 | 16-39 | 11-21 | 4.5-7.3 | 0 | 0 | 0 | 0

 | 39-64 | 11-21 | 4.5-7.3 | 0 | 0 | 0 | 0

 | 64-72 | 11-21 | 4.5-7.3 | 0 | 0 | 0 | 0

 | 72-80 | 11-21 | 4.5-7.3 | 0 | 0 | 0 | 0

 | | | | | | |

HarC2: | | | | | | |

 Harrah---------------| 0-8 | 7.0-11 | 4.5-7.3 | 0 | 0 | 0 | 0

 | 8-30 | 11-21 | 4.5-7.3 | 0 | 0 | 0 | 0

 | 30-63 | 11-21 | 4.5-7.3 | 0 | 0 | 0 | 0

 | 63-80 | 11-21 | 4.5-7.3 | 0 | 0 | 0 | 0

 | | | | | | |

HarG: | | | | | | |

 Harrah---------------| 0-6 | 7.0-11 | 4.5-7.3 | 0 | 0 | 0 | 0

 | 6-12 | 4.0-11 | 4.5-7.3 | 0 | 0 | 0 | 0

 | 12-32 | 11-21 | 4.5-7.3 | 0 | 0 | 0 | 0

 | 32-54 | 11-21 | 4.5-7.3 | 0 | 0 | 0 | 0

 | 54-72 | 11-21 | 4.5-7.3 | 0 | 0 | 0 | 0

 | 72-80 | 11-21 | 4.5-7.3 | 0 | 0 | 0 | 0

 | | | | | | |

HawB: | | | | | | |

 Hawley---------------| 0-10 | 3.0-7.0 | 5.6-7.8 | 0 | 0 | 0 | 0

 | 10-24 | 4.0-11 | 6.1-8.4 | 0 | 0 | 0 | 0

 | 24-38 | 4.0-11 | 6.1-8.4 | 0 | 0 | 0 | 0

 | 38-49 | 4.0-11 | 6.6-8.4 | 0 | 0 | 0 | 0

 | 49-80 | 3.0-16 | 6.6-8.4 | 0 | 0 | 0 | 0

 | | | | | | |

ICGD3: | | | | | | |

 Ironmound------------| 0-5 | 10-15 | 5.6-8.4 | 0 | 0 | 0 | 0

 | 5-12 | 10-21 | 6.1-8.4 | 0 | 0 | 0 | 0

 | 12-20 | --- | --- | --- | --- | --- | ---

 | | | | | | |

 Coyle----------------| 0-8 | 10-16 | 5.6-7.8 | 0 | 0 | 0 | 0

 | 8-21 | 13-21 | 5.6-7.8 | 0 | 0 | 0 | 0

 | 21-35 | 11-21 | 5.6-7.8 | 0 | 0 | 0 | 0

 | 35-40 | --- | --- | --- | --- | --- | ---

 | | | | | | |

 Grainola-------------| 0-4 | 17-21 | 6.6-8.4 | 0-2 | 0 | 0 | 0

 | 4-22 | 21-36 | 7.9-8.4 | 0-5 | 0 | 0 | 0

 | 22-34 | 21-36 | 7.9-8.4 | 0-10 | 0 | 0 | 0

 | 34-40 | --- | --- | --- | --- | --- | ---

 | | | | | | |

IrCE: | | | | | | |

 Ironmound------------| 0-6 | 7.0-11 | 5.6-8.4 | 0 | 0 | 0 | 0

 | 6-15 | 10-21 | 6.1-8.4 | 0 | 0 | 0 | 0

 | 15-20 | --- | --- | --- | --- | --- | ---

 | | | | | | |
Logan County, Oklahoma 451

Chemical Properties of the Soils—Continued

__________________________________________________________________________________________

 | | | | | | |

 Map symbol | Depth | Cation- | Soil |Calcium| Gypsum | Salinity | Sodium

 and soil name | |exchange |reaction |carbon-| | | adsorp-

 | |capacity | | ate | | | tion

 | | | | | | | ratio __________________________________________________________________________________________

 | In |meq/100 g| pH | Pct | Pct | mmhos/cm | __ _________ __ ___ ___ ________

 | | | | | | |

IrCE: | | | | | | |

 Coyle----------------| 0-8 | 10-15 | 5.6-8.4 | 0 | 0 | 0 | 0

 | 8-16 | 13-21 | 5.6-7.8 | 0 | 0 | 0 | 0

 | 16-26 | 13-21 | 5.6-7.8 | 0 | 0 | 0 | 0

 | 26-40 | --- | --- | --- | --- | --- | ---

 | | | | | | |

IroC2: | | | | | | |

 Ironmound------------| 0-7 | 10-15 | 5.6-8.4 | 0 | 0 | 0 | 0

 | 7-16 | 10-21 | 6.1-8.4 | 0 | 0 | 0 | 0

 | 16-40 | --- | --- | --- | --- | --- | ---

 | | | | | | |

KgfB: | | | | | | |

 Kingfisher-----------| 0-10 | 9.0-16 | 6.1-7.8 | 0 | 0 | 0 | 0

 | 10-22 | 16-21 | 6.6-8.4 | 0 | 0 | 0 | 0

 | 22-32 | 16-24 | 6.6-8.4 | 0 | 0 | 0 | 0

 | 32-38 | 16-24 | 6.6-8.4 | 0 | 0 | 0 | 0

 | 38-40 | --- | --- | --- | --- | --- | ---

 | | | | | | |

KinC2: | | | | | | |

 Kingfisher-----------| 0-8 | 9.0-16 | 6.1-7.8 | 0 | 0 | 0 | 0

 | 8-13 | 16-21 | 6.6-8.4 | 0 | 0 | 0 | 0

 | 13-20 | 16-21 | 6.6-8.4 | 0 | 0 | 0 | 0

 | 20-27 | 16-24 | 6.6-8.4 | 0 | 0 | 0 | 0

 | 27-40 | --- | --- | --- | --- | --- | ---

 | | | | | | |

KonB: | | | | | | |

 Konawa---------------| 0-7 | 2.0-7.0 | 5.1-6.5 | 0 | 0 | 0 | 0

 | 7-12 | 2.0-10 | 5.1-6.5 | 0 | 0 | 0 | 0

 | 12-25 | 11-18 | 5.1-7.3 | 0 | 0 | 0 | 0

 | 25-38 | 11-18 | 5.1-7.3 | 0 | 0 | 0 | 0

 | 38-52 | 11-18 | 5.1-7.3 | 0 | 0 | 0 | 0

 | 52-80 | 5.0-18 | 5.1-6.5 | 0 | 0 | 0 | 0

 | | | | | | |

KonD2: | | | | | | |

 Konawa---------------| 0-9 | 2.0-7.0 | 5.1-6.5 | 0 | 0 | 0 | 0

 | 9-23 | 11-18 | 5.1-7.3 | 0 | 0 | 0 | 0

 | 23-38 | 11-18 | 5.1-7.3 | 0 | 0 | 0 | 0

 | 38-49 | 11-18 | 5.1-7.3 | 0 | 0 | 0 | 0

 | 49-70 | 5.0-18 | 5.1-6.5 | 0 | 0 | 0 | 0

 | 70-80 | 5.0-18 | 5.1-6.5 | 0 | 0 | 0 | 0

 | | | | | | |

KrdA: | | | | | | |

 Kirkland-------------| 0-8 | 10-16 | 5.6-7.3 | 0 | 0 | 0.0-1.0 | 1-4

 | 8-19 | 24-36 | 6.6-7.8 | 0-2 | 0 | 0.0-2.0 | 2-12

 | 19-41 | 24-36 | 6.6-7.8 | 0-2 | 0 | 0.0-2.0 | 2-12

 | 41-59 | 24-36 | 6.6-8.4 | 0-2 | 0 | 0.0-2.0 | 2-12

 | 59-85 | 21-36 | 7.4-8.4 | 0-2 | 0-2 | 2.0-4.0 | 3-16

 | 85-96 | --- | --- | --- | --- | --- | ---

 | | | | | | |

KrkB: | | | | | | |

 Kirkland-------------| 0-9 | 16-21 | 5.6-7.3 | 0 | 0 | 0.0-1.0 | 1-4

 | 9-34 | 24-36 | 6.6-7.8 | 0-2 | 0 | 0.0-2.0 | 2-12

 | 34-48 | 24-36 | 6.6-7.8 | 0-2 | 0 | 0.0-2.0 | 2-12

 | 48-57 | 24-36 | 6.6-8.4 | 0-2 | 0 | 0.0-2.0 | 2-12

 | 57-82 | 21-36 | 7.4-8.4 | 0-2 | 0-2 | 2.0-4.0 | 3-16

 | 82-98 | --- | --- | --- | --- | --- | ---

 | | | | | | |
452 Soil Survey

Chemical Properties of the Soils—Continued

__________________________________________________________________________________________

 | | | | | | |

 Map symbol | Depth | Cation- | Soil |Calcium| Gypsum | Salinity | Sodium

 and soil name | |exchange |reaction |carbon-| | | adsorp-

 | |capacity | | ate | | | tion

 | | | | | | | ratio __________________________________________________________________________________________

 | In |meq/100 g| pH | Pct | Pct | mmhos/cm | __ _________ __ ___ ___ ________

 | | | | | | |

LarA: | | | | | | |

 Lawrie---------------| 0-8 | 10-16 | 6.1-7.8 | 0 | 0 | 0 | 0

 | 8-20 | 10-16 | 6.1-7.8 | 0 | 0 | 0 | 0

 | 20-27 | 11-21 | 6.1-8.4 | 0 | 0 | 0 | 0

 | 27-38 | 11-21 | 6.1-8.4 | 0 | 0 | 0 | 0

 | 38-45 | 11-21 | 6.1-8.4 | 0 | 0 | 0 | 0

 | 45-80 | 17-24 | 7.9-8.4 | 0-2 | 0 | 0 | 0

 | | | | | | |

LawA: | | | | | | |

 Lawrie---------------| 0-10 | 10-16 | 6.1-7.8 | 0 | 0 | 0 | 0

 | 10-26 | 11-21 | 6.1-8.4 | 0 | 0 | 0 | 0

 | 26-34 | 11-21 | 6.1-8.4 | 0 | 0 | 0 | 0

 | 34-51 | 17-24 | 7.9-8.4 | 0-2 | 0 | 0 | 0

 | 51-72 | 11-21 | 6.1-8.4 | 0-2 | 0 | 0 | 0

 | 72-90 | 17-24 | 7.9-8.4 | 0-2 | 0 | 0 | 0

 | | | | | | |

LerA: | | | | | | |

 Lebron---------------| 0-5 | 24-36 | 7.4-8.4 | 0-5 | 0 | 0 | 0

 | 5-14 | 21-36 | 7.4-8.4 | 0-5 | 0 | 0 | 0

 | 14-28 | 6.0-36 | 7.4-8.4 | 0-5 | 0 | 0 | 0

 | 28-80 | 2.0-11 | 7.4-8.4 | 0-5 | 0 | 0 | 0

 | | | | | | |

LitB: | | | | | | |

 Littleaxe------------| 0-5 | 6.0-12 | 5.1-7.3 | 0 | 0 | 0 | 0

 | 5-9 | 2.0-8.0 | 4.5-6.5 | 0 | 0 | 0 | 0

 | 9-30 | 3.0-8.0 | 4.5-6.5 | 0 | 0 | 0 | 0

 | 30-45 | 3.0-8.0 | 4.5-6.5 | 0 | 0 | 0 | 0

 | 45-58 | 9.0-18 | 4.5-7.3 | 0 | 0 | 0 | 0

 | 58-60 | --- | --- | --- | --- | --- | ---

 | | | | | | |

LitC2: | | | | | | |

 Littleaxe------------| 0-6 | 6.0-12 | 5.1-7.3 | 0 | 0 | 0 | 0

 | 6-17 | 3.0-8.0 | 4.5-6.5 | 0 | 0 | 0 | 0

 | 17-41 | 3.0-8.0 | 4.5-6.5 | 0 | 0 | 0 | 0

 | 41-52 | 9.0-18 | 4.5-6.5 | 0 | 0 | 0 | 0

 | 52-60 | --- | --- | --- | --- | --- | ---

 | | | | | | |

M-W. | | | | | | |

 Miscellaneous water | | | | | | |

 | | | | | | |

MaID: | | | | | | |

 Masham---------------| 0-4 | 21-24 | 7.9-8.4 | 0-5 | 0 | 0 | 0

 | 4-16 | 21-36 | 7.9-8.4 | 0-5 | 0 | 0 | 0

 | 16-35 | --- | --- | --- | --- | --- | ---

 | | | | | | |

 Ironmound------------| 0-6 | 10-15 | 5.6-8.4 | 0 | 0 | 0 | 0

 | 6-11 | 10-21 | 6.1-8.4 | 0 | 0 | 0 | 0

 | 11-36 | --- | --- | --- | --- | --- | ---

 | | | | | | |

MaIG: | | | | | | |

 Masham---------------| 0-4 | 21-24 | 7.9-8.4 | 0-5 | 0 | 0 | 0

 | 4-12 | 21-36 | 7.9-8.4 | 0-5 | 0 | 0 | 0

 | 12-20 | --- | --- | --- | --- | --- | ---

 | | | | | | |

 Ironmound------------| 0-6 | 10-15 | 5.6-8.4 | 0 | 0 | 0 | 0

 | 6-15 | 10-21 | 6.1-8.4 | 0 | 0 | 0 | 0

 | 15-20 | --- | --- | --- | --- | --- | ---

 | | | | | | |
Logan County, Oklahoma 453

Chemical Properties of the Soils—Continued

__________________________________________________________________________________________

 | | | | | | |

 Map symbol | Depth | Cation- | Soil |Calcium| Gypsum | Salinity | Sodium

 and soil name | |exchange |reaction |carbon-| | | adsorp-

 | |capacity | | ate | | | tion

 | | | | | | | ratio __________________________________________________________________________________________

 | In |meq/100 g| pH | Pct | Pct | mmhos/cm | __ _________ __ ___ ___ ________

 | | | | | | |

MinB: | | | | | | |

 Minco----------------| 0-11 | 5.0-11 | 5.6-7.3 | 0 | 0 | 0 | 0

 | 11-26 | 5.0-11 | 5.6-8.4 | 0 | 0 | 0 | 0

 | 26-37 | 5.0-11 | 5.6-8.4 | 0 | 0 | 0 | 0

 | 37-58 | 5.0-11 | 5.6-8.4 | 0 | 0 | 0 | 0

 | 58-80 | 5.0-11 | 6.1-8.4 | 0 | 0 | 0 | 0

 | | | | | | |

MinC: | | | | | | |

 Minco----------------| 0-10 | 5.0-11 | 5.6-7.3 | 0 | 0 | 0 | 0

 | 10-29 | 5.0-11 | 5.6-8.4 | 0 | 0 | 0 | 0

 | 29-40 | 5.0-11 | 5.6-8.4 | 0 | 0 | 0 | 0

 | 40-54 | 5.0-11 | 5.6-8.4 | 0 | 0 | 0 | 0

 | 54-80 | 5.0-11 | 6.1-8.4 | 0 | 0 | 0 | 0

 | | | | | | |

MinD: | | | | | | |

 Minco----------------| 0-12 | 5.0-11 | 5.6-7.3 | 0 | 0 | 0 | 0

 | 12-26 | 5.0-11 | 5.6-8.4 | 0 | 0 | 0 | 0

 | 26-47 | 5.0-11 | 5.6-8.4 | 0 | 0 | 0 | 0

 | 47-67 | 5.0-11 | 5.6-8.4 | 0 | 0 | 0 | 0

 | 67-80 | 5.0-11 | 6.1-8.4 | 0 | 0 | 0 | 0

 | | | | | | |

MinF: | | | | | | |

 Minco----------------| 0-9 | 5.0-11 | 5.6-7.3 | 0 | 0 | 0 | 0

 | 9-19 | 5.0-11 | 5.6-8.4 | 0 | 0 | 0 | 0

 | 19-39 | 5.0-11 | 5.6-8.4 | 0 | 0 | 0 | 0

 | 39-64 | 5.0-11 | 5.6-8.4 | 0 | 0 | 0 | 0

 | 64-70 | 5.0-11 | 5.6-8.4 | 0 | 0 | 0 | 0

 | 70-80 | 5.0-11 | 6.1-8.4 | 0 | 0 | 0 | 0

 | | | | | | |

MllA: | | | | | | |

 Miller---------------| 0-9 | 24-35 | 7.4-8.4 | 0 | 0 | 0 | 0

 | 9-15 | 21-36 | 7.4-8.4 | 0 | 0 | 0 | 0

 | 15-27 | 21-36 | 7.4-8.4 | 0 | 0 | 0 | 0

 | 27-41 | 21-36 | 7.4-8.4 | 0-2 | 0-2 | 0 | 0

 | 41-55 | 21-36 | 7.4-8.4 | 0-2 | 0-2 | 0 | 0

 | 55-80 | 21-36 | 7.4-8.4 | 0-2 | 0-2 | 0 | 0

 | | | | | | |

MulC: | | | | | | |

 Mulhall--------------| 0-11 | 10-16 | 5.6-7.8 | 0 | 0 | 0 | 0

 | 11-17 | 11-18 | 6.1-7.3 | 0 | 0 | 0 | 0

 | 17-32 | 13-21 | 6.1-7.8 | 0 | 0 | 0 | 0

 | 32-40 | 13-21 | 6.1-7.8 | 0 | 0 | 0 | 0

 | 40-70 | 13-21 | 6.6-8.4 | 0 | 0 | 0 | 0

 | 70-82 | --- | --- | --- | --- | --- | ---

 | | | | | | |

MulC2: | | | | | | |

 Mulhall--------------| 0-10 | 10-16 | 5.6-7.8 | 0 | 0 | 0 | 0

 | 10-22 | 13-21 | 6.1-7.8 | 0 | 0 | 0 | 0

 | 22-36 | 13-21 | 6.1-7.8 | 0 | 0 | 0 | 0

 | 36-54 | 13-21 | 6.6-8.4 | 0 | 0 | 0 | 0

 | 54-80 | 13-21 | 6.6-8.4 | 0 | 0 | 0 | 0

 | 80-90 | --- | --- | --- | --- | --- | ---

 | | | | | | |

NavA: | | | | | | |

 Navina---------------| 0-8 | 6.0-12 | 5.6-7.8 | 0 | 0 | 0 | 0

 | 8-14 | 11-21 | 5.6-7.8 | 0 | 0 | 0 | 0

 | 14-33 | 11-21 | 6.6-7.8 | 0 | 0 | 0 | 0

 | 33-41 | 11-21 | 6.6-7.8 | 0 | 0 | 0 | 0

 | 41-71 | 7.0-21 | 6.6-7.8 | 0 | 0 | 0 | 0

 | 71-80 | 2.0-10 | 6.6-7.8 | 0 | 0 | 0 | 0
454 Soil Survey

Chemical Properties of the Soils—Continued

__________________________________________________________________________________________

 | | | | | | |

 Map symbol | Depth | Cation- | Soil |Calcium| Gypsum | Salinity | Sodium

 and soil name | |exchange |reaction |carbon-| | | adsorp-

 | |capacity | | ate | | | tion

 | | | | | | | ratio __________________________________________________________________________________________

 | In |meq/100 g| pH | Pct | Pct | mmhos/cm | __ _________ __ ___ ___ ________

 | | | | | | |

NavB: | | | | | | |

 Navina---------------| 0-7 | 6.0-12 | 5.6-7.8 | 0 | 0 | 0 | 0

 | 7-16 | 11-21 | 5.6-7.8 | 0 | 0 | 0 | 0

 | 16-37 | 11-21 | 6.6-7.8 | 0 | 0 | 0 | 0

 | 37-60 | 11-21 | 6.6-7.8 | 0 | 0 | 0 | 0

 | 60-71 | 7.0-21 | 6.6-7.8 | 0 | 0 | 0 | 0

 | 71-80 | 2.0-10 | 6.6-7.8 | 0 | 0 | 0 | 0

 | | | | | | |

NeGD4: | | | | | | |

 Newalla--------------| 0-6 | 5.0-11 | 4.5-7.3 | 0 | 0 | 0 | 0

 | 6-11 | 12-21 | 4.5-7.3 | 0 | 0 | 0 | 0

 | 11-28 | 24-36 | 4.5-8.4 | 0-2 | 0 | 0 | 0-4

 | 28-46 | 24-36 | 7.4-8.4 | 0-2 | 0 | 0 | 0-8

 | 46-60 | --- | --- | --- | --- | --- | ---

 | | | | | | |

 Gullied land. | | | | | | |

 | | | | | | |

NewB: | | | | | | |

 Newalla--------------| 0-6 | 5.0-11 | 4.5-7.3 | 0 | 0 | 0 | 0

 | 6-12 | 5.0-11 | 4.5-7.3 | 0 | 0 | 0 | 0

 | 12-19 | 12-21 | 4.5-7.3 | 0 | 0 | 0 | 0

 | 19-41 | 24-36 | 4.5-8.4 | 0-2 | 0 | 0 | 0-4

 | 41-46 | 24-36 | 7.4-8.4 | 0-2 | 0 | 0 | 0-8

 | 46-52 | --- | --- | --- | --- | --- | ---

 | | | | | | |

NorA: | | | | | | |

 Norge----------------| 0-11 | 10-16 | 5.6-7.3 | 0 | 0 | 0 | 0

 | 11-16 | 10-16 | 5.6-7.3 | 0 | 0 | 0 | 0

 | 16-23 | 11-21 | 5.6-7.3 | 0 | 0 | 0 | 0

 | 23-43 | 17-21 | 5.6-7.8 | 0 | 0 | 0 | 0

 | 43-61 | 17-21 | 5.6-7.8 | 0 | 0 | 0 | 0

 | 61-80 | 17-30 | 6.1-8.4 | 0-2 | 0 | 0 | 0

 | | | | | | |

NorB: | | | | | | |

 Norge----------------| 0-12 | 10-16 | 5.6-7.3 | 0 | 0 | 0 | 0

 | 12-18 | 11-21 | 5.6-7.3 | 0 | 0 | 0 | 0

 | 18-24 | 17-21 | 5.6-7.8 | 0 | 0 | 0 | 0

 | 24-45 | 17-21 | 5.6-7.8 | 0 | 0 | 0 | 0

 | 45-62 | 17-30 | 6.1-8.4 | 0-2 | 0 | 0 | 0

 | 62-80 | 17-30 | 6.6-8.4 | 0-2 | 0 | 0 | 0

 | | | | | | |

NorC2: | | | | | | |

 Norge----------------| 0-8 | 10-16 | 5.6-7.3 | 0 | 0 | 0 | 0

 | 8-15 | 17-21 | 5.6-7.8 | 0 | 0 | 0 | 0

 | 15-33 | 17-21 | 5.6-7.8 | 0 | 0 | 0 | 0

 | 33-43 | 17-21 | 5.6-7.8 | 0 | 0 | 0 | 0

 | 43-65 | 17-30 | 6.1-7.8 | 0-2 | 0 | 0 | 0

 | 65-80 | 17-30 | 6.6-8.4 | 0-2 | 0 | 0 | 0

 | | | | | | |

OWHD: | | | | | | |

 Oil waste land. | | | | | | |

 | | | | | | |

 Huska----------------| 0-8 | 8.0-16 | 5.6-7.8 | 0 | 0 | 0.0-8.0 | 8-18

 | 8-19 | 21-27 | 6.6-8.4 | 0-2 | 0-2 | 2.0-16.0 | 15-55

 | 19-40 | 21-36 | 7.4-8.4 | 0-2 | 0-2 | 2.0-16.0 | 15-55

 | 40-51 | 21-36 | 7.4-8.4 | 0-2 | 0-2 | 2.0-16.0 | 15-55

 | 51-59 | 21-36 | 7.4-8.4 | 0-2 | 0-2 | 2.0-16.0 | 15-55

 | 59-80 | --- | --- | --- | --- | --- | ---

 | | | | | | |
Logan County, Oklahoma 455

Chemical Properties of the Soils—Continued

__________________________________________________________________________________________

 | | | | | | |

 Map symbol | Depth | Cation- | Soil |Calcium| Gypsum | Salinity | Sodium

 and soil name | |exchange |reaction |carbon-| | | adsorp-

 | |capacity | | ate | | | tion

 | | | | | | | ratio __________________________________________________________________________________________

 | In |meq/100 g| pH | Pct | Pct | mmhos/cm | __ _________ __ ___ ___ ________

 | | | | | | |

PieB: | | | | | | |

 Piedmont-------------| 0-8 | 16-21 | 6.1-7.3 | 0 | 0 | 0 | 0

 | 8-17 | 21-33 | 6.6-8.4 | 0-2 | 0 | 0 | 0

 | 17-27 | 21-33 | 6.6-8.4 | 0-2 | 0 | 0 | 0

 | 27-32 | 21-33 | 7.9-8.4 | 0-5 | 0 | 0 | 0

 | 32-40 | --- | --- | --- | --- | --- | ---

 | | | | | | |

PieC2: | | | | | | |

 Piedmont-------------| 0-7 | 16-21 | 6.1-7.3 | 0 | 0 | 0 | 0

 | 7-14 | 21-33 | 6.6-8.4 | 0-2 | 0 | 0 | 0

 | 14-27 | 21-33 | 7.9-8.4 | 0-5 | 0 | 0 | 0

 | 27-40 | --- | --- | --- | --- | --- | ---

 | | | | | | |

PIT. | | | | | | |

 Pits | | | | | | |

 | | | | | | |

PukA: | | | | | | |

 Pulaski--------------| 0-8 | 7.0-11 | 5.6-7.3 | 0 | 0 | 0 | 0

 | 8-28 | 7.0-11 | 5.6-7.3 | 0 | 0 | 0 | 0

 | 28-80 | 4.0-11 | 5.6-7.8 | 0 | 0 | 0 | 0

 | | | | | | |

PulA: | | | | | | |

 Pulaski--------------| 0-10 | 7.0-11 | 5.6-7.3 | 0 | 0 | 0 | 0

 | 10-14 | 7.0-11 | 5.6-7.3 | 0 | 0 | 0 | 0

 | 14-36 | 7.0-11 | 5.6-7.3 | 0 | 0 | 0 | 0

 | 36-80 | 4.0-11 | 5.6-7.8 | 0 | 0 | 0 | 0

 | | | | | | |

RenB: | | | | | | |

 Renfrow--------------| 0-11 | 11-16 | 6.1-7.8 | 0 | 0 | 0 | 0

 | 11-19 | 14-24 | 6.1-7.8 | 0 | 0 | 0 | 0

 | 19-33 | 21-33 | 6.1-8.4 | 0 | 0 | 0.0-2.0 | 0-4

 | 33-66 | 21-33 | 6.1-8.4 | 0 | 0 | 0.0-2.0 | 0-4

 | 66-72 | 21-33 | 7.9-8.4 | 0 | 0 | 0.0-2.0 | 0-4

 | 72-80 | --- | --- | --- | --- | --- | ---

 | | | | | | |

RenC: | | | | | | |

 Renfrow--------------| 0-10 | 11-16 | 6.1-7.8 | 0 | 0 | 0 | 0

 | 10-16 | 14-24 | 6.1-7.8 | 0 | 0 | 0 | 0

 | 16-27 | 21-33 | 6.1-8.4 | 0 | 0 | 0.0-2.0 | 0-4

 | 27-38 | 21-33 | 6.1-8.4 | 0 | 0 | 0.0-2.0 | 0-4

 | 38-67 | 21-33 | 6.6-8.4 | 0 | 0 | 0.0-2.0 | 0-4

 | 67-80 | --- | --- | --- | --- | --- | ---

 | | | | | | |

RewC2: | | | | | | |

 Renfrow--------------| 0-10 | 17-21 | 6.1-7.8 | 0 | 0 | 0 | 0

 | 10-24 | 21-33 | 6.1-8.4 | 0 | 0 | 0.0-2.0 | 0-4

 | 24-37 | 21-33 | 6.1-8.4 | 0 | 0 | 0.0-2.0 | 0-4

 | 37-54 | 21-33 | 6.6-8.4 | 0 | 0 | 0.0-2.0 | 0-4

 | 54-63 | 21-33 | 7.9-8.4 | 0 | 0 | 0.0-2.0 | 0-4

 | 63-80 | --- | --- | --- | --- | --- | ---

 | | | | | | |

RinB: | | | | | | |

 Renthin--------------| 0-7 | 15-35 | 6.1-7.3 | 0 | 0 | 0 | 0

 | 7-12 | 20-30 | 6.1-7.8 | 0 | 0 | 0 | 0

 | 12-21 | 20-40 | 6.6-8.4 | 0 | 0 | 0 | 0

 | 21-32 | 20-40 | 7.9-8.4 | 0-5 | 0 | 0 | 0

 | 32-54 | 20-40 | 7.9-8.4 | 0-5 | 0 | 0 | 0

 | 54-60 | --- | --- | --- | --- | --- | ---

 | | | | | | |
456 Soil Survey

Chemical Properties of the Soils—Continued

__________________________________________________________________________________________

 | | | | | | |

 Map symbol | Depth | Cation- | Soil |Calcium| Gypsum | Salinity | Sodium

 and soil name | |exchange |reaction |carbon-| | | adsorp-

 | |capacity | | ate | | | tion

 | | | | | | | ratio __________________________________________________________________________________________

 | In |meq/100 g| pH | Pct | Pct | mmhos/cm | __ _________ __ ___ ___ ________

 | | | | | | |

RnnC2: | | | | | | |

 Renthin--------------| 0-10 | 15-35 | 6.1-7.3 | 0 | 0 | 0 | 0

 | 10-20 | 20-40 | 6.6-8.4 | 0 | 0 | 0 | 0

 | 20-33 | 20-40 | 7.9-8.4 | 0-2 | 0 | 0 | 0

 | 33-45 | 20-40 | 7.9-8.4 | 0-2 | 0 | 0 | 0

 | 45-50 | 20-40 | 7.9-8.4 | 0-5 | 0 | 0 | 0

 | 50-60 | --- | --- | --- | --- | --- | ---

 | | | | | | |

SDGD4: | | | | | | |

 Stephenville---------| 0-5 | 7.0-12 | 5.1-6.5 | 0 | 0 | 0 | 0

 | 5-12 | 11-21 | 4.5-6.0 | 0 | 0 | 0 | 0

 | 12-22 | 11-21 | 4.5-6.0 | 0 | 0 | 0 | 0

 | 22-36 | --- | --- | --- | --- | --- | ---

 | | | | | | |

 Darsil---------------| 0-4 | 1.0-6.0 | 5.1-7.8 | 0 | 0 | 0 | 0

 | 4-12 | 1.0-6.0 | 5.1-7.8 | 0 | 0 | 0 | 0

 | 12-24 | --- | --- | --- | --- | --- | ---

 | | | | | | |

 Gullied land. | | | | | | |

 | | | | | | |

SDND: | | | | | | |

 Stephenville---------| 0-7 | 7.0-12 | 5.1-6.5 | 0 | 0 | 0 | 0

 | 7-13 | 4.0-10 | 5.1-6.5 | 0 | 0 | 0 | 0

 | 13-28 | 11-21 | 4.5-6.0 | 0 | 0 | 0 | 0

 | 28-36 | --- | --- | --- | --- | --- | ---

 | | | | | | |

 Darsil---------------| 0-5 | 1.0-6.0 | 5.1-7.8 | 0 | 0 | 0 | 0

 | 5-18 | 1.0-6.0 | 5.1-7.8 | 0 | 0 | 0 | 0

 | 18-20 | --- | --- | --- | --- | --- | ---

 | | | | | | |

 Newalla--------------| 0-4 | 5.0-11 | 4.5-7.3 | 0 | 0 | 0 | 0

 | 4-8 | 5.0-11 | 4.5-7.3 | 0 | 0 | 0 | 0

 | 8-13 | 12-21 | 4.5-7.3 | 0 | 0 | 0 | 0

 | 13-27 | 24-36 | 4.5-8.4 | 0-2 | 0 | 0 | 0-4

 | 27-48 | 24-36 | 7.4-8.4 | 0-2 | 0 | 0 | 0-8

 | 48-80 | --- | --- | --- | --- | --- | ---

 | | | | | | |

SDND2: | | | | | | |

 Stephenville---------| 0-7 | 7.0-12 | 5.1-6.5 | 0 | 0 | 0 | 0

 | 7-12 | 11-21 | 4.5-6.0 | 0 | 0 | 0 | 0

 | 12-25 | 11-21 | 4.5-6.0 | 0 | 0 | 0 | 0

 | 25-30 | 11-21 | 4.5-6.0 | 0 | 0 | 0 | 0

 | 30-36 | --- | --- | --- | --- | --- | ---

 | | | | | | |

 Darsil---------------| 0-6 | 1.0-6.0 | 5.1-7.8 | 0 | 0 | 0 | 0

 | 6-11 | 1.0-6.0 | 5.1-7.8 | 0 | 0 | 0 | 0

 | 11-24 | --- | --- | --- | --- | --- | ---

 | | | | | | |

 Newalla--------------| 0-5 | 5.0-11 | 4.5-7.3 | 0 | 0 | 0 | 0

 | 5-12 | 12-21 | 4.5-7.3 | 0 | 0 | 0 | 0

 | 12-26 | 24-36 | 4.5-8.4 | 0-2 | 0 | 0 | 0-4

 | 26-40 | 24-36 | 4.5-8.4 | 0-2 | 0 | 0 | 0-4

 | 40-80 | --- | --- | --- | --- | --- | ---

 | | | | | | |
Logan County, Oklahoma 457

Chemical Properties of the Soils—Continued

__________________________________________________________________________________________

 | | | | | | |

 Map symbol | Depth | Cation- | Soil |Calcium| Gypsum | Salinity | Sodium

 and soil name | |exchange |reaction |carbon-| | | adsorp-

 | |capacity | | ate | | | tion

 | | | | | | | ratio __________________________________________________________________________________________

 | In |meq/100 g| pH | Pct | Pct | mmhos/cm | __ _________ __ ___ ___ ________

 | | | | | | |

SlaB: | | | | | | |

 Slaughterville-------| 0-11 | 6.0-11 | 5.6-7.3 | 0 | 0 | 0 | 0

 | 11-20 | 6.0-11 | 5.6-7.3 | 0 | 0 | 0 | 0

 | 20-34 | 6.0-11 | 6.1-8.4 | 0 | 0 | 0 | 0

 | 34-42 | 6.0-11 | 6.1-8.4 | 0 | 0 | 0 | 0

 | 42-53 | 3.0-11 | 6.6-8.4 | 0 | 0 | 0 | 0

 | 53-80 | 6.0-11 | 6.6-8.4 | 0 | 0 | 0 | 0

 | | | | | | |

SlaD: | | | | | | |

 Slaughterville-------| 0-8 | 6.0-11 | 5.6-7.3 | 0 | 0 | 0 | 0

 | 8-16 | 6.0-11 | 5.6-7.3 | 0 | 0 | 0 | 0

 | 16-34 | 6.0-11 | 6.1-8.4 | 0 | 0 | 0 | 0

 | 34-50 | 6.0-11 | 6.1-8.4 | 0 | 0 | 0 | 0

 | 50-80 | 3.0-11 | 6.6-8.4 | 0 | 0 | 0 | 0

 | | | | | | |

SlaF: | | | | | | |

 Slaughterville-------| 0-8 | 6.0-11 | 5.6-7.3 | 0 | 0 | 0 | 0

 | 8-16 | 6.0-11 | 5.6-7.3 | 0 | 0 | 0 | 0

 | 16-34 | 6.0-11 | 6.6-8.4 | 0 | 0 | 0 | 0

 | 34-48 | 6.0-11 | 6.6-8.4 | 0 | 0 | 0 | 0

 | 48-63 | 3.0-11 | 6.6-8.4 | 0 | 0 | 0 | 0

 | 63-80 | 3.0-11 | 6.6-8.4 | 0 | 0 | 0 | 0

 | | | | | | |

StDC: | | | | | | |

 Stephenville---------| 0-6 | 7.0-12 | 5.1-6.5 | 0 | 0 | 0 | 0

 | 6-14 | 4.0-10 | 5.1-6.5 | 0 | 0 | 0 | 0

 | 14-23 | 11-21 | 4.5-6.0 | 0 | 0 | 0 | 0

 | 23-30 | 11-21 | 4.5-6.0 | 0 | 0 | 0 | 0

 | 30-40 | --- | --- | --- | --- | --- | ---

 | | | | | | |

 Darsil---------------| 0-4 | 1.0-6.0 | 5.1-7.8 | 0 | 0 | 0 | 0

 | 4-15 | 1.0-6.0 | 5.1-7.8 | 0 | 0 | 0 | 0

 | 15-20 | --- | --- | --- | --- | --- | ---

 | | | | | | |

StDC2: | | | | | | |

 Stephenville---------| 0-8 | 7.0-12 | 5.1-6.5 | 0 | 0 | 0 | 0

 | 8-21 | 11-21 | 4.5-6.0 | 0 | 0 | 0 | 0

 | 21-32 | 11-21 | 4.5-6.0 | 0 | 0 | 0 | 0

 | 32-38 | 11-21 | 4.5-6.0 | 0 | 0 | 0 | 0

 | 38-44 | --- | --- | --- | --- | --- | ---

 | | | | | | |

 Darsil---------------| 0-8 | 1.0-6.0 | 5.1-7.8 | 0 | 0 | 0 | 0

 | 8-16 | 1.0-6.0 | 5.1-7.8 | 0 | 0 | 0 | 0

 | 16-30 | --- | --- | --- | --- | --- | ---

 | | | | | | |

StDE: | | | | | | |

 Stephenville---------| 0-7 | 7.0-12 | 5.1-6.5 | 0 | 0 | 0 | 0

 | 7-14 | 4.0-10 | 5.1-6.5 | 0 | 0 | 0 | 0

 | 14-27 | 11-21 | 4.5-6.0 | 0 | 0 | 0 | 0

 | 27-40 | --- | --- | --- | --- | --- | ---

 | | | | | | |

 Darsil---------------| 0-7 | 1.0-6.0 | 5.1-7.8 | 0 | 0 | 0 | 0

 | 7-16 | 1.0-6.0 | 5.1-7.8 | 0 | 0 | 0 | 0

 | 16-20 | --- | --- | --- | --- | --- | ---

 | | | | | | |
458 Soil Survey

Chemical Properties of the Soils—Continued

__________________________________________________________________________________________

 | | | | | | |

 Map symbol | Depth | Cation- | Soil |Calcium| Gypsum | Salinity | Sodium

 and soil name | |exchange |reaction |carbon-| | | adsorp-

 | |capacity | | ate | | | tion

 | | | | | | | ratio __________________________________________________________________________________________

 | In |meq/100 g| pH | Pct | Pct | mmhos/cm | __ _________ __ ___ ___ ________

 | | | | | | |

SteB: | | | | | | |

 Stephenville---------| 0-6 | 7.0-12 | 5.1-6.5 | 0 | 0 | 0 | 0

 | 6-12 | 4.0-10 | 5.1-6.5 | 0 | 0 | 0 | 0

 | 12-22 | 11-21 | 4.5-6.0 | 0 | 0 | 0 | 0

 | 22-35 | 11-21 | 4.5-6.0 | 0 | 0 | 0 | 0

 | 35-40 | --- | --- | --- | --- | --- | ---

 | | | | | | |

SteC2: | | | | | | |

 Stephenville---------| 0-8 | 7.0-12 | 5.1-6.5 | 0 | 0 | 0 | 0

 | 8-29 | 11-21 | 4.5-6.0 | 0 | 0 | 0 | 0

 | 29-40 | --- | --- | --- | --- | --- | ---

 | | | | | | |

SUND: | | | | | | |

 Stephenville---------| 0-9 | 7.0-12 | 5.1-6.5 | 0 | 0 | 0 | 0

 | 9-28 | 11-21 | 4.5-6.0 | 0 | 0 | 0 | 0

 | 28-40 | --- | --- | --- | --- | --- | ---

 | | | | | | |

 Urban land. | | | | | | |

 | | | | | | |

 Newalla--------------| 0-6 | 7.0-15 | 4.5-7.3 | 0 | 0 | 0 | 0

 | 6-11 | 12-21 | 4.5-7.3 | 0 | 0 | 0 | 0

 | 11-34 | 24-36 | 4.5-8.4 | 0-2 | 0 | 0 | 0-4

 | 34-58 | 24-36 | 4.5-8.4 | 0-2 | 0 | 0 | 0-4

 | 58-72 | --- | --- | --- | --- | --- | ---

 | | | | | | |

TelB: | | | | | | |

 Teller---------------| 0-9 | 7.0-13 | 5.6-7.3 | 0 | 0 | 0 | 0

 | 9-15 | 7.0-13 | 5.6-7.3 | 0 | 0 | 0 | 0

 | 15-31 | 11-18 | 5.6-7.3 | 0 | 0 | 0 | 0

 | 31-44 | 11-18 | 5.6-7.3 | 0 | 0 | 0 | 0

 | 44-55 | 7.0-13 | 5.6-7.8 | 0 | 0 | 0 | 0

 | 55-80 | 7.0-13 | 5.6-7.8 | 0 | 0 | 0 | 0

 | | | | | | |

TelC2: | | | | | | |

 Teller---------------| 0-4 | 7.0-13 | 5.6-7.3 | 0 | 0 | 0 | 0

 | 4-25 | 7.0-13 | 5.6-7.3 | 0 | 0 | 0 | 0

 | 25-44 | 11-18 | 5.6-7.3 | 0 | 0 | 0 | 0

 | 44-59 | 11-18 | 5.6-7.3 | 0 | 0 | 0 | 0

 | 59-80 | 11-18 | 5.6-7.3 | 0 | 0 | 0 | 0

 | | | | | | |

TriA: | | | | | | |

 Tribbey--------------| 0-6 | 7.0-11 | 5.6-8.4 | 0 | 0 | 0 | 0

 | 6-45 | 7.0-11 | 5.6-8.4 | 0 | 0 | 0 | 0

 | 45-80 | 4.0-11 | 5.6-8.4 | 0 | 0 | 0 | 0

 | | | | | | |

URB. | | | | | | |

 Urban land | | | | | | |

 | | | | | | |

W. | | | | | | |

 Water | | | | | | |

 | | | | | | |

YaaA: | | | | | | |

 Yahola---------------| 0-7 | 7.0-11 | 7.4-8.4 | 0-1 | 0 | 0 | 0

 | 7-14 | 4.0-11 | 7.9-8.4 | 1-5 | 0 | 0 | 0

 | 14-34 | 4.0-11 | 7.9-8.4 | 1-5 | 0 | 0 | 0

 | 34-46 | 4.0-11 | 7.9-8.4 | 1-5 | 0 | 0 | 0

 | 46-80 | 4.0-11 | 7.9-8.4 | 1-5 | 0 | 0 | 0

 | | | | | | |
Logan County, Oklahoma 459

Chemical Properties of the Soils—Continued

__________________________________________________________________________________________

 | | | | | | |

 Map symbol | Depth | Cation- | Soil |Calcium| Gypsum | Salinity | Sodium

 and soil name | |exchange |reaction |carbon-| | | adsorp-

 | |capacity | | ate | | | tion

 | | | | | | | ratio __________________________________________________________________________________________

 | In |meq/100 g| pH | Pct | Pct | mmhos/cm | __ _________ __ ___ ___ ________

 | | | | | | |

YahA: | | | | | | |

 Yahola---------------| 0-6 | 7.0-11 | 7.4-8.4 | 0-1 | 0 | 0 | 0

 | 6-34 | 4.0-11 | 7.9-8.4 | 1-5 | 0 | 0 | 0

 | 34-80 | 4.0-11 | 7.9-8.4 | 1-5 | 0 | 0 | 0

 | | | | | | |

ZaHC: | | | | | | |

 Zaneis---------------| 0-12 | 3.0-11 | 5.6-7.3 | 0 | 0 | 0 | 0

 | 12-25 | 11-18 | 5.6-7.3 | 0 | 0 | 0 | 0

 | 25-32 | 13-23 | 5.6-7.3 | 0 | 0 | 0 | 0

 | 32-52 | 11-18 | 6.1-7.8 | 0 | 0 | 0 | 0

 | 52-60 | --- | --- | --- | --- | --- | ---

 | | | | | | |

 Huska----------------| 0-5 | 8.0-16 | 5.6-7.8 | 0 | 0 | 0.0-8.0 | 8-18

 | 5-13 | 21-27 | 6.6-8.4 | 0-2 | 0-2 | 2.0-16.0 | 15-55

 | 13-20 | 21-27 | 6.6-8.4 | 0-2 | 0-2 | 2.0-16.0 | 15-55

 | 20-39 | 21-36 | 7.4-8.4 | 0-2 | 0-2 | 2.0-16.0 | 15-55

 | 39-59 | 21-36 | 7.4-8.4 | 0-2 | 0-2 | 2.0-16.0 | 15-55

 | 59-67 | --- | --- | --- | --- | --- | ---

 | | | | | | |

ZanB: | | | | | | |

 Zaneis---------------| 0-10 | 10-16 | 5.6-7.3 | 0 | 0 | 0 | 0

 | 10-17 | 11-18 | 5.6-7.3 | 0 | 0 | 0 | 0

 | 17-28 | 13-23 | 5.6-7.3 | 0 | 0 | 0 | 0

 | 28-38 | 13-23 | 5.6-7.3 | 0 | 0 | 0 | 0

 | 38-44 | 11-18 | 6.1-7.8 | 0 | 0 | 0 | 0

 | 44-54 | --- | --- | --- | --- | --- | ---

 | | | | | | |

ZanC: | | | | | | |

 Zaneis---------------| 0-8 | 10-16 | 5.6-7.3 | 0 | 0 | 0 | 0

 | 8-14 | 11-18 | 5.6-7.3 | 0 | 0 | 0 | 0

 | 14-25 | 11-18 | 5.6-7.3 | 0 | 0 | 0 | 0

 | 25-31 | 13-23 | 5.6-7.3 | 0 | 0 | 0 | 0

 | 31-47 | 13-23 | 6.1-7.3 | 0 | 0 | 0 | 0

 | 47-54 | --- | --- | --- | --- | --- | ---

 | | | | | | |

ZanC2: | | | | | | |

 Zaneis---------------| 0-8 | 10-16 | 5.6-7.3 | 0 | 0 | 0 | 0

 | 8-15 | 11-18 | 5.6-7.3 | 0 | 0 | 0 | 0

 | 15-26 | 13-23 | 5.6-7.3 | 0 | 0 | 0 | 0

 | 26-43 | 13-23 | 6.1-7.3 | 0 | 0 | 0 | 0

 | 43-56 | 11-18 | 6.1-7.8 | 0 | 0 | 0 | 0

 | 56-60 | --- | --- | --- | --- | --- | ---

 | | | | | | | __________________________________________________________________________________________
460 Soil Survey

Chemical Analyses of Selected Soils

The results of chemical analysis of several pedons are given in the table “Chemical

Properties of Selected Soils.” The data are for soils sampled at carefully selected sites.

The pedons are representative of the series described in the section “Soil Series and

Their Morphology.” Soil samples were analyzed by the Soil Survey Laboratory, Lincoln,

Nebraska.

Most determinations, except for those for grain-size analysis and bulk density, were

made on soil material smaller than 2 millimeters in diameter. Measurements reported

as percent or quantity of unit weight were calculated on an ovendry basis. The

methods used in obtaining the data are indicated in the list that follows. The codes in

parentheses refer to published methods (8).

Organic carbon—wet combustion. Walkley-Black modified acid-dichromate, ferric

sulfate titration (6A1c).

Extractable cations—ammonium acetate pH 7.0, atomic absorption; calcium

(6N2e), magnesium (6O2d), sodium (6P2b), potassium (6Q2b).

Extractable acidity—barium chloride-triethanolamine IV (6H5a).

Cation-exchange capacity—ammonium acetate, pH 7.0, steam distillation (5A8b).

Cation-exchange capacity—sum of cations (5A3a).

Base saturation—sum of cations, TEA, pH 8.2 (5C3).

Base saturation—ammonium acetate, pH 7.0 (5C1).

Reaction (pH)—calcium chloride (8C1f).

Reaction (pH)—1:1 water dilution (8C1f).
Logan County, Oklahoma 461 Chemical Properties of Selected Soils (The location of the sampled pedons is given at the end of the table. TR means trace. Dashes indicate that data were not available) _________________________________________________________________________________________________________________________ | | | | Extractable bases | | Cation-exchange |Base saturation | pH Soil name and | Depth |Horizon|Organic| (ammonium acetate) |Extract-| capacity | | ________________________ ______________________________________________ sample number | | |carbon | | | | | able |Sum of |Ammonium |Sum of |Ammonium|CaCl2|H20 | | | | Ca | Mg | Na | K |acidity |cations| acetate |cations| acetate| 1:2 |1:1 _________________________________________________________________________________________________________________________ | In | | |-------Milliequivalents per 100 grams of soil------| Pct | Pct | | __ ___________________________________________________ ___ ___ | | | | | | | | | | | | | | Bathel: | 0-8 | Ap | 0.63 | --- | --- | --- | --- | 3.1 | --- | --- | --- | --- | 4.0 |4.2 (S92OK-083-006)| 8-12 | A | 0.24 | --- | --- | --- | --- | 1.3 | --- | --- | --- | --- | 5.3 |5.8 | 12-18 | E | 0.16 | --- | --- | --- | --- | 0.7 | --- | --- | --- | --- | 5.8 |6.4 | 18-22 | Bt | 0.35 | --- | --- | --- | --- | 3.0 | --- | --- | --- | --- | 6.1 |6.8 | 22-35 | Btg1 | 0.27 | --- | --- | --- | --- | 3.3 | --- | --- | --- | --- | 6.2 |7.0 | 35-45 | Btg2 | 0.12 | --- | --- | --- | --- | 3.1 | --- | --- | --- | --- | 5.9 |6.7 | 45-51 | BCg1 | 0.07 | --- | --- | --- | --- | 2.5 | --- | --- | --- | --- | 5.8 |6.6 | 51-66 | BCg2 | 0.05 | --- | --- | --- | --- | 0.9 | --- | --- | --- | --- | 5.7 |6.5 | 66-86 | 2Bt | 0.03 | --- | --- | --- | --- | 1.9 | --- | --- | --- | --- | 5.7 |6.5 | | | | | | | | | | | | | | Bethany: | 17-31 | Bt1 | 0.47 |19.1 | 10.7 | 1.6 | 0.5 | --- | 31.9 | 28.7 | 100 | 100 | 7.0 |7.9 (S89OK-083-001)| 31-40 | Bt2 | 0.26 | --- | 11.5 | 3.2 | 0.5 | --- | --- | 26.6 | 100 | 100 | 7.7 |8.5 | 40-51 | Bt3 | 0.18 | --- | 11.4 | 4.2 | 0.4 | --- | --- | 25.6 | 100 | 100 | 7.7 |8.5 | | | | | | | | | | | | | | Coyle: | 0-5 | Ap | 1.25 | 5.1 | 1.6 | 0.1 | 0.5 | 4.7 | 7.3 | 8.8 | 61 | 83 | 5.0 |5.6 (S91OK-083-001)| 5-10 | BA | 0.98 | 6.2 | 2.3 | 0.1 | 0.4 | 5.0 | 9.0 | 10.6 | 64 | 85 | 5.1 |5.7 | 10-14 | Bt1 | 0.93 | 7.5 | 3.2 | 0.1 | 0.3 | 4.9 | 11.1 | 12.2 | 69 | 91 | 5.3 |6.0 | 14-18 | Bt2 | 0.73 | 7.7 | 3.5 | 0.1 | 0.2 | 4.3 | 11.5 | 12.8 | 73 | 90 | 5.4 |6.1 | 18-27 | BCt | 0.44 | 6.0 | 3.0 | 0.1 | 0.2 | 3.8 | 9.3 | 9.8 | 71 | 95 | 5.5 |6.2 | 27-37 | Cr | 0.21 | 3.6 | 1.9 | TR | 0.1 | 1.5 | 5.6 | 5.6 | 79 | 100 | 6.1 |6.8 | 37-47 | R | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |--- | | | | | | | | | | | | | | Darsil: | 0-3 | A | 1.03 | 0.9 | 0.4 | 0.1 | 0.1 | 4.4 | 5.9 | 4.8 | 25 | 31 | 4.1 |4.7 (S91OK-O83-007)| 3-14 | EC | 0.25 | --- | 0.2 | 0.1 | TR | 1.9 | 2.2 | 1.8 | 14 | 17 | 4.0 |4.5 | 14-24 | Cr1 | 0.06 | 0.7 | 1.5 | 0.1 | 0.1 | 2.1 | 4.5 | 3.4 | 53 | 71 | 4.6 |5.3 | 24-35 | Cr2 | 0.14 | 0.9 | 2.0 | 0.1 | 0.1 | 3.2 | 6.3 | 5.2 | 49 | 60 | 4.2 |4.9 | | | | | | | | | | | | | | Ironmound: | 0-4 | Ap | 1.34 | --- | --- | --- | --- | 2.9 | --- | --- | --- | --- | 5.3 |5.9 (S92OK-083-005)| 4-10 | Bwd | 0.50 | --- | --- | --- | --- | 1.7 | --- | --- | --- | --- | 5.3 |6.1 | 10-18 | Bw | 0.39 | --- | --- | --- | --- | 3.0 | --- | --- | --- | --- | 5.5 |6.3 | 18-23 | C/Cr | 0.13 | --- | --- | --- | --- | 0.9 | --- | --- | --- | --- | 5.8 |6.6 | 23-34 | Cr1 | 0.06 | --- | --- | --- | --- | 0.3 | --- | --- | --- | --- | 5.9 |6.7 | 34-51 | Cr2 | 0.03 | --- | --- | --- | --- | 0.5 | --- | --- | --- | --- | 6.6 |7.2 | 51+ | R | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |--- | | | | | | | | | | | | | | Kingfisher: | 0-7 | Ap | 2.09 | 9.6 | 3.3 | TR | 0.4 | 3.2 | 16.5 | 12.1 | 81 | 100 | 6.1 |6.6 (S90OK-083-004)| 7-12 | Bt1 | 1.02 |10.0 | 4.1 | TR | 0.2 | 4.1 | 18.4 | 15.0 | 78 | 95 | 5.7 |6.5 | 12-18 | 2Bt2 | 0.55 |11.6 | 4.9 | TR | 0.2 | 2.9 | 19.6 | 15.4 | 85 | 100 | 6.3 |7.1 | 18-25 | 2BC | 0.45 |10.1 | 4.1 | TR | 0.1 | 2.1 | 16.4 | 14.5 | 87 | 99 | 5.7 |6.6 | | | | | | | | | | | | | |
462 Soil Survey Chemical Properties of Selected Soils—Continued _________________________________________________________________________________________________________________________ | | | | Extractable bases | | Cation-exchange |Base saturation | pH Soil name and | Depth |Horizon|Organic| (ammonium acetate) |Extract-| capacity | | ________________________ ______________________________________________ sample number | | |carbon | | | | | able |Sum of |Ammonium |Sum of |Ammonium|CaCl2|H20 | | | | Ca | Mg | Na | K |acidity |cations| acetate |cations| acetate| 1:2 |1:1 _________________________________________________________________________________________________________________________ | In | | |-------Milliequivalents per 100 grams of soil------| Pct | Pct | | __ ___________________________________________________ ___ ___ | | | | | | | | | | | | | | Kingfisher: | 0-8 | Ap | 1.87 | 7.7 | 2.9 | TR | 0.3 | 6.2 | 17.1 | 12.5 | 64 | 87 | 4.8 |5.5 (S90OK-083-005)| 8-13 | Bt1 | 1.22 |11.0 | 4.0 | TR | 0.3 | 4.5 | 19.8 | 17.0 | 77 | 90 | 5.3 |6.1 | 13-20 | Bt2 | 0.57 |18.0 | 4.1 | TR | 0.3 | 1.4 | 23.8 | 17.7 | 94 | 100 | 7.0 |7.6 | 20-27 | BC | 0.27 | --- | 5.5 | 0.1 | 0.2 | --- | --- | 11.7 | 100 | 100 | 7.5 |8.1 | | | | | | | | | | | | | | Kirkland: | 8-18 | Bt1 | 0.51 | --- | 10.3 | 2.1 | 0.6 | --- | --- | 28.7 | 100 | 100 | 7.4 |8.4 (S89OK-083-002)| 18-29 | Bt2 | 0.30 | --- | 10.9 | 4.2 | 0.5 | --- | --- | 27.8 | 100 | 100 | 7.7 |8.4 | 29-41 | Bt3 | 0.24 | --- | 10.9 | 5.1 | 0.5 | --- | --- | 27.5 | 100 | 100 | 7.7 |8.5 | 41-50 | Bt4 | 0.15 | --- | 11.4 | 5.7 | 0.6 | --- | --- | 30.5 | 100 | 100 | 7.6 |8.5 | | | | | | | | | | | | | | Kirkland: | 0-8 | Ap | 1.31 | 8.9 | 4.1 | 0.2 | 0.4 | 7.8 | 21.4 | 17.5 | 64 | 78 | 4.8 |5.4 (S91OK-083-005)| 8-18 | Bt1 | 0.72 |20.7 | 8.6 | 0.9 | 0.4 | 4.9 | 35.5 | 31.7 | 86 | 97 | 6.2 |6.9 | 18-28 | Bt2 | 0.58 |19.8 | 9.7 | 1.6 | 0.4 | 2.6 | 34.1 | 31.8 | 92 | 99 | 7.0 |7.7 | 28-40 | Btk | 0.37 | --- | 10.2 | 2.6 | 0.5 | --- | --- | 31.0 | 100 | 100 | 7.7 |8.3 | 40-50 | 2Bt1 | 0.22 | --- | 8.4 | 3.1 | 0.4 | 1.4 | --- | 31.2 | --- | 100 | 7.7 |8.0 | 50-59 | 2Bt2 | 0.15 |23.6 | 9.3 | 3.7 | 0.4 | 2.4 | 39.4 | 33.3 | 94 | 100 | 7.5 |7.9 | 59-73 | 2Bt3 | 0.10 |19.8 | 9.3 | 4.0 | 0.5 | 2.2 | 35.8 | 32.9 | 94 | 100 | 7.3 |7.7 | 73-85 | 2Bt4 | 0.05 | --- | 8.3 | 3.2 | 0.4 | --- | --- | 26.7 | 100 | 100 | 7.5 |7.8 | 85-96 | 3Cr | 0.01 |12.2 | 5.5 | 2.5 | 0.3 | 0.6 | 21.1 | 19.2 | 97 | 100 | 7.2 |7.4 | | | | | | | | | | | | | | Lawrie: | 0-6 | Ap | 0.89 | 5.4 | 1.7 | 0.1 | 0.2 | 4.9 | 12.3 | 9.0 | 60 | 82 | 5.9 |6.5 (S91OK-083-004)| 6-10 | Ad | 0.77 | 5.2 | 1.7 | 0.1 | 0.1 | 4.9 | 12.0 | 9.2 | 59 | 77 | 4.8 |5.3 | 10-19 | Bt | 0.79 |12.1 | 4.6 | 0.1 | 0.3 | 6.0 | 23.1 | 18.8 | 74 | 91 | 4.7 |5.2 | 19-26 | Bt1b | 0.93 |14.9 | 5.7 | 0.2 | 0.3 | 6.2 | 27.3 | 22.9 | 77 | 92 | 5.4 |6.0 | 26-34 | Bt2b | 0.74 |12.9 | 6.1 | 0.2 | 0.4 | 6.0 | 25.6 | 22.0 | 77 | 89 | 5.5 |6.0 | 34-51 | Bt3b | 0.24 |10.3 | 4.3 | 0.2 | 0.2 | 3.4 | 18.4 | 15.9 | 82 | 94 | 5.6 |6.2 | 51-72 | Bt4b | 0.14 | 9.8 | 3.8 | 0.2 | 0.3 | 1.8 | 15.9 | 14.2 | 89 | 99 | 6.1 |6.7 | 72-82 | Btkb | 0.10 | --- | 6.2 | 0.2 | 0.3 | --- | --- | 15.1 | 100 | 100 | 7.6 |8.0 | 82-89 | BCkb | 0.05 | --- | 5.8 | 0.2 | 0.3 | --- | --- | 13.2 | 100 | 100 | 7.7 |8.1 | | | | | | | | | | | | | | Lebron: | 0-5 | Ap | 1.16 | --- | --- | --- | --- | --- | --- | --- | --- | --- | 7.4 |7.8 (S92OK-083-004)| 5-9 | Ad | 1.00 | --- | --- | --- | --- | --- | --- | --- | --- | --- | 7.5 |7.9 | 9-14 | A | 0.83 | --- | --- | --- | --- | --- | --- | --- | --- | --- | 7.5 |8.0 | 14-18 | C1 | 0.70 | --- | --- | --- | --- | --- | --- | --- | --- | --- | 7.6 |8.0 | 18-28 | C2 | 0.32 | --- | --- | --- | --- | --- | --- | --- | --- | --- | 7.7 |8.3 | | | | | | | | | | | | | | Masham: | 0-4 | A | 2.06 | --- | 9.0 | 0.1 | 0.5 | 1.6 | --- | 18.7 | --- | 100 | 7.0 |7.2 (S91OK-083-008)| 4-8 | Bw | 0.47 | --- | 5.9 | --- | 0.2 | --- | --- | 14.3 | 100 | 100 | 4.8 |8.0 | 8-13 | BC | 0.18 | --- | 6.3 | --- | 0.2 | --- | --- | 13.8 | 100 | 100 | 7.7 |8.2 | 13-25 | Cr1 | 0.17 | --- | 6.8 | --- | 0.1 | --- | --- | 12.3 | 100 | 100 | 7.8 |8.3 | 25-39 | Cr2 | 0.07 | --- | 12.6 | TR | 0.2 | --- | --- | 12.2 | 100 | 100 | 8.0 |8.5 | 39-47 | 2Cr | 0.01 | 4.1 | 8.7 | 0.1 | 0.2 | --- | 13.1 | 10.7 | 100 | 100 | 7.9 |8.4 | | | | | | | | | | | | | |
Logan County, Oklahoma 463 Chemical Properties of Selected Soils—Continued _________________________________________________________________________________________________________________________ | | | | Extractable bases | | Cation-exchange |Base saturation | pH Soil name and | Depth |Horizon|Organic| (ammonium acetate) |Extract-| capacity | | ________________________ ______________________________________________ sample number | | |carbon | | | | | able |Sum of |Ammonium |Sum of |Ammonium|CaCl2|H20 | | | | Ca | Mg | Na | K |acidity |cations| acetate |cations| acetate| 1:2 |1:1 _________________________________________________________________________________________________________________________ | In | | |-------Milliequivalents per 100 grams of soil------| Pct | Pct | | __ ___________________________________________________ ___ ___ | | | | | | | | | | | | | | Mulhall: | 0-3 | Ap | 1.70 | 7.8 | 2.8 | 0.1 | 0.5 | 4.6 | 15.8 | 12.2 | 71 | 92 | 5.5 |6.1 (S91OK-083-002)| 3-7 | Ad | 1.16 | 8.3 | 3.4 | 0.1 | 0.3 | 5.5 | 17.6 | 14.0 | 69 | 86 | 5.4 |6.0 | 7-11 | Bd | 0.72 |12.0 | 6.4 | 0.1 | 0.4 | 5.8 | 24.7 | 20.6 | 77 | 92 | 5.6 |6.2 | 11-19 | Bt1 | 0.98 |11.3 | 5.4 | 0.2 | 0.4 | 6.0 | 23.3 | 19.4 | 74 | 89 | 5.4 |6.0 | 19-23 | Bt2 | 0.45 | 9.9 | 5.8 | 0.1 | 0.3 | 4.9 | 21.0 | 17.2 | 77 | 94 | 5.8 |6.4 | 23-40 | 2Bt3 | 0.24 | 8.9 | 5.7 | 0.2 | 0.3 | 3.4 | 18.5 | 14.1 | 82 | 100 | 6.0 |6.6 | 40-54 | 2Bt4 | 0.12 | 9.6 | 6.0 | 0.1 | 0.3 | 2.8 | 18.8 | 13.5 | 85 | 100 | 6.2 |6.8 | 54-68 | 2BC | 0.08 |10.8 | 5.6 | 0.2 | 0.4 | 2.6 | 19.6 | 14.1 | 87 | 100 | 6.4 |7.0 | 68-76 | 3Bt | 0.04 |15.4 | 3.5 | 0.1 | 0.2 | 0.8 | 20.0 | 11.3 | 96 | 100 | 7.6 |8.0 | 76-81 | 3BC | 0.01 |12.2 | 3.0 | 0.1 | 0.2 | --- | 15.5 | 9.5 | 100 | 100 | 7.5 |8.1 | 81-90 | 3Cr | --- | 5.5 | 2.0 | 0.1 | 0.1 | --- | 7.7 | 5.4 | 100 | 100 | 7.6 |8.1 | | | | | | | | | | | | | | Mulhall: | 0-6 | Ap | 2.72 | 6.2 | 1.9 | 0.1 | 0.4 | 8.3 | 16.9 | 13.2 | 51 | 65 | 4.8 |4.9 (S91OK-083-006)| 6-11 | A | 1.42 | 6.9 | 1.9 | 0.1 | 0.2 | 5.3 | 14.4 | 11.5 | 63 | 79 | 5.0 |5.4 | 11-17 | BAt | 1.10 | 7.6 | 2.6 | 0.2 | 0.1 | 5.2 | 15.7 | 12.4 | 67 | 85 | 5.4 |5.8 | 17-26 | Bt1 | 0.70 | 8.3 | 4.3 | 0.2 | 0.2 | 3.9 | 16.9 | 15.1 | 77 | 86 | 5.7 |6.2 | 26-31 | Bt2 | 0.41 | 9.2 | 5.3 | 0.1 | 0.1 | 3.7 | 18.4 | 15.7 | 80 | 94 | 5.8 |6.3 | 31-40 | Bt3 | 0.29 | 7.6 | 4.6 | 0.2 | 0.2 | 3.2 | 15.8 | 14.5 | 80 | 87 | 5.7 |6.2 | 40-51 | 2Bt4 | 0.18 | 7.0 | 4.1 | 0.2 | 0.4 | 4.1 | 15.8 | 14.4 | 74 | 81 | 5.8 |6.3 | 51-65 | 2Bt5 | 0.12 | 8.2 | 3.3 | 0.2 | 0.2 | 2.2 | 14.1 | 12.5 | 84 | 95 | 6.4 |6.9 | 65-70 | 2BC | 0.08 | 8.3 | 3.7 | 0.3 | 0.1 | 2.9 | 15.3 | 11.6 | 81 | 100 | 6.7 |7.3 | 70-84 | 2Cr | 0.04 | 6.3 | 2.9 | 0.3 | 0.1 | 1.4 | 11.0 | 9.6 | 87 | 100 | 6.8 |7.5 | | | | | | | | | | | | | | Piedmont: | 0-8 | A | 1.64 |13.9 | 8.5 | 0.2 | 0.9 | 4.9 | 28.4 | 25.8 | 83 | 91 | 5.8 |6.7 (S88OK-083-001)| 8-17 | Bt1 | 0.80 |16.9 | 11.5 | 0.4 | 0.6 | 3.4 | 32.7 | 30.7 | 90 | 95 | 6.2 |7.2 | 17-27 | Bt2 | 0.64 |16.6 | 12.0 | 0.6 | 0.6 | 2.2 | 32.0 | 29.6 | 93 | 100 | 6.7 |7.6 | 27-32 | BC | 0.42 | --- | 11.9 | 0.7 | 0.4 | --- | --- | 21.9 | 100 | 100 | 7.8 |8.5 | | | | | | | | | | | | | | Piedmont: | 0-9 | A | 2.65 |14.3 | 5.7 | TR | 1.1 | 6.0 | 27.1 | 23.4 | 78 | 90 | 5.8 |6.4 (S88OK-083-002)| 9-14 | Bt1 | 1.29 |20.2 | 8.2 | 0.1 | 0.7 | 5.7 | 34.9 | 29.4 | 84 | 99 | 6.0 |6.9 | 14-21 | Bt2 | 1.09 |23.0 | 11.1 | 0.1 | 0.7 | --- | 34.9 | 33.0 | 100 | 100 | 6.6 |7.3 | 21-27 | BC | 0.86 | --- | 11.2 | 0.2 | 0.6 | --- | --- | 27.6 | 100 | 100 | 7.6 |8.2 | | | | | | | | | | | | | | Stephenville: | 0-5 | A | 1.26 | 4.5 | 1.0 | --- | 0.4 | 3.7 | 9.6 | 6.4 | 61 | 92 | 5.2 |5.8 (S89OK-083-003)| 5-8 | E | 0.43 | 3.1 | 0.9 | --- | 0.1 | 2.4 | 6.5 | 4.5 | 63 | 91 | 5.3 |5.8 | 8-18 | Bt1 | 0.54 | 7.1 | 4.1 | --- | 0.2 | 4.1 | 15.5 | 12.4 | 74 | 92 | 5.3 |6.3 | 18-25 | Bt2 | 0.24 | 4.1 | 2.9 | TR | 0.1 | 2.2 | 9.3 | 7.6 | 76 | 93 | 5.1 |6.0 | | | | | | | | | | | | | | Zaneis: | 0-10 | A | 1.51 | 6.1 | 2.1 | TR | 0.2 | 5.1 | 13.5 | 10.2 | 62 | 82 | 5.1 |5.6 (S90OK-083-001)| 10-17 | BA | 1.14 | 7.1 | 3.1 | --- | 0.2 | 5.9 | 16.3 | 12.6 | 64 | 83 | 5.1 |5.8 | 17-28 | Bt1 | 0.79 | 9.4 | 5.6 | TR | 0.2 | 5.4 | 20.6 | 17.8 | 74 | 85 | 5.2 |5.9 | 28-38 | Bt2 | 0.40 | 9.0 | 5.3 | TR | 0.2 | 5.1 | 19.6 | 15.6 | 74 | 93 | 5.4 |5.9 | 38-44 | BCt | 0.33 | 7.4 | 4.5 | TR | 0.2 | 3.1 | 15.2 | 12.9 | 80 | 94 | 5.5 |6.4 | | | | | | | | | | | | | |
464 Soil Survey Chemical Properties of Selected Soils—Continued _________________________________________________________________________________________________________________________ | | | | Extractable bases | | Cation-exchange |Base saturation | pH Soil name and | Depth |Horizon|Organic| (ammonium acetate) |Extract-| capacity | | ________________________ ______________________________________________ sample number | | |carbon | | | | | able |Sum of |Ammonium |Sum of |Ammonium|CaCl2|H20 | | | | Ca | Mg | Na | K |acidity |cations| acetate |cations| acetate| 1:2 |1:1 _________________________________________________________________________________________________________________________ | In | | |-------Milliequivalents per 100 grams of soil------| Pct | Pct | | __ ___________________________________________________ ___ ___ | | | | | | | | | | | | | | Zaneis: | 0-4 | Ap | 1.93 | 6.2 | 1.4 | TR | 0.4 | 4.9 | 12.9 | 9.8 | 62 | 82 | 5.1 |5.6 (S910K-083-003)| 4-6 | Ad | 1.39 | 6.2 | 1.6 | --- | 0.3 | 5.8 | 13.9 | 10.5 | 58 | 77 | 4.8 |5.5 | 6-11 | BA | 1.20 | 6.5 | 2.1 | TR | 0.3 | 5.8 | 14.7 | 11.0 | 61 | 81 | 4.8 |5.5 | 11-18 | Bt1 | 0.88 | 7.8 | 3.2 | 0.1 | 0.2 | 5.9 | 17.2 | 13.4 | 66 | 84 | 4.9 |5.5 | 18-25 | Bt2 | 0.66 | 8.8 | 4.2 | 0.1 | 0.3 | 5.5 | 18.9 | 15.4 | 71 | 87 | 5.1 |5.8 | 25-35 | Bt3 | 0.32 | 6.4 | 3.5 | TR | 0.2 | 1.0 | 11.1 | 11.2 | 91 | 90 | 5.0 |5.7 | 35-43 | BC | 0.15 | 4.6 | 2.5 | 0.1 | 0.1 | 3.2 | 10.5 | 8.3 | 70 | 88 | 5.1 |5.6 | 43-54 | Cr | 0.08 | 4.4 | 3.2 | 0.2 | 0.2 | 2.5 | 10.5 | 8.5 | 76 | 94 | 5.6 |6.2 | 54+ | R | 0.03 | --- | --- | --- | --- | --- | --- | --- | --- | --- | --- |--- | | | | | | | | | | | | | | _________________________________________________________________________________________________________________________ Location of sampled pedons: Bathel loamy fine sand (S92OK-083-006); about 1,800 feet east and 2,000 feet south of the northwest corner of sec. 7, T. 17 N., R. 4 W. Bethany silt loam (S89OK-083-001); about 2,375 feet west and 1,150 feet south of the northeast corner of sec. 23, T. 19 N., R.2 W. (Inclusion of similar soil in map unit BetA; exchangeable sodium percentage and sodium adsorption ratio are higher than the normal ranges for the series.) Coyle loam (S92OK-083-001); about 1,450 feet east and 1,600 north of the southwest corner of sec. 34, T. 17 N., R. 2 W. (Lab data reflect that the surface layer is slightly outside the normal loam texture, but the data is within the normal range for laboratory error.) Darsil loamy fine sand (S91OK-083-007); about 650 feet east and 300 feet south of the northwest corner of sec. 35, T. 15 N., R. 1 W. (The pH of the A and EC horizons is slightly low for the series.) Ironmound very fine sandy loam (S92OK-083-005); about 700 feet west and 1,050 feet north of the southeast corner of sec. 30, T. 19 N., R. 4 W. Kingfisher loam (S90OK-083-004); about 1,500 feet west and 100 north of the southeast corner of sec. 36, T. 20 N., R. 2 W. (Inclusion to map unit CoIC2; mineralogy is siliceous and is outside the range of the series.) Kingfisher loam (S90OK-083-005); about 450 feet south and 100 east of the northwest corner of sec. 5, T. 19 N., R. 2 W. (The pH of the surface layer is slightly high for the series due to the addition of acid-forming fertilizer.) Kirkland silt loam (S89OK-083-002); 2,350 feet south and 2,450 feet east of the northwest corner of sec. 16, T. 19 N., R. 4 W. (Inclusion of similar soil in map unit KirB; exchangeable sodium percentage and sodium adsorption ratio are higher than the normal ranges for the series.) Kirkland silt loam (S91OK-083-005); about l,000 feet north and l50 feet west of the southeast corner of sec. 36, T. l6 N., R. 4 W. (Reaction is slightly outside of the range for the series because of the addition of acid-forming fertilizer.) Lawrie loam (S91OK-083-004); about 1,800 feet east and 700 feet south of the northeast corner of sec. 27, T. 17 N., R. 1 W. Lebron clay (S92OK-083-004); about 3,800 feet east and 1,200 feet south of the northwest corner of sec. 9, T. 17 N., R. 2 W. (This is the type location for the series.) Masham silty clay loam (S91OK-083-008); about 1,200 feet east and 300 feet south of the northwest corner of sec. 35, T. 15 N., R. 1 W. Mulhall loam (S91OK-083-002); about 1,000 feet west and 100 feet north of the southeast corner of sec. 18, R. 18 W., T. 2 W. Mulhall loam (S91OK-083-006); about 1,250 feet east and 800 feet south of the northwest corner of sec. 19, R. 19 N., T. 2 W.
Logan County, Oklahoma 465 Chemical Properties of Selected Soils—Continued Location of sampled pedons: Piedmont silty clay loam (S88OK-083-001); about 200 feet east and 150 feet south of the northwest corner of sec. 18, T. 18 N., R. 4 W. Piedmont silty clay loam (S88OK-083-002); about 1,800 feet east and 100 feet south of the northwest corner of sec. 18, T. 18 N., R. 4 W. (The clay content is higher than allowed by the range of the series.) Stephenville fine sandy loam (S89OK-083-003); about 600 feet west and 950 feet north of the southeast corner of sec. 12, T. 15 N., R. 2 W. (The base saturation of the lower part of the argillic horizon is 76, which is outside the range of the series, and the pH is slightly higher than allowed by the range of the series. These data are within the normal range of laboratory error.) Zaneis loam (S90OK-083-001); about 100 feet east and 100 feet south of the northwest corner of sec. 35, T. 19 N., R. 2 W. Zaneis fine sandy loam (S91OK-083-003); about 5,000 feet west and 2,500 feet north of the southeast corner of sec. 30, T. 18 N., R. 2 W. (The surface layer of fine sandy loam is not typical for the map unit ZanB but is within the range of the Zaneis series. This pedon is an inclusion to the map unit ZanB.)
466 Soil Survey

Water Features

The table “Water Features” gives estimates of various water features. The estimates

are used in land use planning that involves engineering considerations.

Hydrologic soil groups are based on estimates of runoff potential. Soils are

assigned to one of four groups according to the rate of water infiltration when the soils

are not protected by vegetation, are thoroughly wet, and receive precipitation from

long-duration storms.

The four hydrologic soil groups are:

Group A. Soils having a high infiltration rate (low runoff potential) when thoroughly

wet. These consist mainly of deep, well drained to excessively drained sands or

gravelly sands. These soils have a high rate of water transmission.

Group B. Soils having a moderate infiltration rate when thoroughly wet. These

consist chiefly of moderately deep or deep, moderately well drained or well drained

soils that have moderately fine texture to moderately coarse texture. These soils have

a moderate rate of water transmission.

Group C. Soils having a slow infiltration rate when thoroughly wet. These consist

chiefly of soils having a layer that impedes the downward movement of water or soils

of moderately fine texture or fine texture. These soils have a slow rate of water

transmission.

Group D. Soils having a very slow infiltration rate (high runoff potential) when

thoroughly wet. These consist chiefly of clays that have a high shrink-swell potential,

soils that have a high water table, soils that have a claypan or clay layer at or near the

surface, and soils that are shallow over nearly impervious material. These soils have a

very slow rate of water transmission.

The months in the table indicate the portion of the year in which the feature is most

likely to be a concern.

Water table refers to a saturated zone in the soil. The table “Water Features”

indicates, by month, depth to the top (upper limit) and base (lower limit) of the

saturated zone in most years. Estimates of the upper and lower limits are based

mainly on observations of the water table at selected sites and on evidence of a

saturated zone, namely grayish colors or mottles (redoximorphic features) in the soil. A

saturated zone that lasts for less than a month is not considered a water table.

Ponding is standing water in a closed depression. Unless a drainage system is

installed, the water is removed only by percolation, transpiration, or evaporation. The

table indicates surface water depth and the duration and frequency of ponding.

Duration is expressed as very brief if less than 2 days, brief if 2 to 7 days, long if 7 to

30 days, and very long if more than 30 days. Frequency is expressed as none, rare,

occasional, and frequent. None means that ponding is not probable; rare that it is

unlikely but possible under unusual weather conditions (the chance of ponding is

nearly 0 percent to 5 percent in any year); occasional that it occurs, on the average,

once or less in 2 years (the chance of ponding is 5 to 50 percent in any year); and

frequent that it occurs, on the average, more than once in 2 years (the chance of

ponding is more than 50 percent in any year).

Flooding, the temporary inundation of an area, is caused by overflowing streams, by

runoff from adjacent slopes, or by tides. Water standing for short periods after rainfall

or snowmelt is not considered flooding, and water standing in swamps and marshes is

considered ponding rather than flooding.

Duration and frequency are estimated. Duration is expressed as extremely brief if

0.1 hour to 4 hours, very brief if 4 hours to 2 days, brief if 2 to 7 days, long if 7 to 30

days, and very long if more than 30 days. Frequency is expressed as none, very rare,

rare, occasional, frequent, and very frequent. None means that flooding is not

probable; very rare that it is very unlikely but possible under extremely unusual

weather conditions (the chance of flooding is less than 1 percent in any year); rare that
Logan County, Oklahoma 467

it is unlikely but possible under unusual weather conditions (the chance of flooding is 1

to 5 percent in any year); occasional that it occurs infrequently under normal weather

conditions (the chance of flooding is 5 to 50 percent in any year); frequent that it is

likely to occur often under normal weather conditions (the chance of flooding is more

than 50 percent in any year but is less than 50 percent in all months in any year); and

very frequent that it is likely to occur very often under normal weather conditions (the

chance of flooding is more than 50 percent in all months of any year).

The information is based on evidence in the soil profile, namely thin strata of gravel,

sand, silt, or clay deposited by floodwater; irregular decrease in organic matter content

with increasing depth; and little or no horizon development.

Also considered are local information about the extent and levels of flooding and the

relation of each soil on the landscape to historic floods. Information on the extent of

flooding based on soil data is less specific than that provided by detailed engineering

surveys that delineate flood-prone areas at specific flood frequency levels.
468 Soil Survey Water Features (Depths of layers are in feet. See text for definitions of terms used in this table. Estimates of the frequency of ponding and flooding apply to the whole year rather than to individual months. Absence of an entry indicates that the feature is not a concern or that data were not estimated) _____________________________________________________________________________________________________________________ | | | Water table | Ponding | Flooding _______________________________________________________________________ Map symbol |Hydro-| Month | Upper | Lower |Surface| Duration |Frequency | Duration | Frequency and soil name |logic | | limit | limit | water | | | | |group | | | | depth | | | | _____________________________________________________________________________________________________________________ | | | Ft | Ft | Ft | | | | __ __ __ | | | | | | | | | AspA: | | | | | | | | | Ashport-------------------| B | | | | | | | | | |March | --- | --- | --- | --- | None | Brief | Occasional | |April | --- | --- | --- | --- | None | Brief | Occasional | |May | --- | --- | --- | --- | None | Brief | Occasional | |June | --- | --- | --- | --- | None | Brief | Occasional | |July | --- | --- | --- | --- | None | Brief | Occasional | |August | --- | --- | --- | --- | None | Brief | Occasional | |September | --- | --- | --- | --- | None | Brief | Occasional | |October | --- | --- | --- | --- | None | Brief | Occasional | | | | | | | | | AstA: | | | | | | | | | Ashport-------------------| B | | | | | | | | | |March | --- | --- | --- | --- | None | Brief | Frequent | |April | --- | --- | --- | --- | None | Brief | Frequent | |May | --- | --- | --- | --- | None | Brief | Frequent | |June | --- | --- | --- | --- | None | Brief | Frequent | |July | --- | --- | --- | --- | None | Brief | Frequent | |August | --- | --- | --- | --- | None | Brief | Frequent | |September | --- | --- | --- | --- | None | Brief | Frequent | |October | --- | --- | --- | --- | None | Brief | Frequent | | | | | | | | | BetA, BetB: | | | | | | | | | Bethany-------------------| C | | | | | | | | | |Jan-Dec | --- | --- | --- | --- | None | --- | None | | | | | | | | | BocA: | | | | | | | | | Bocox---------------------| D | | | | | | | | | |January | 0.0 | >6.0 |0.0-1.0| Long | Frequent | --- | None | |February | 0.0 | >6.0 |0.0-1.0| Long | Frequent | --- | None | |March | 0.0 | >6.0 |0.0-1.0| Long | Frequent | --- | None | |April | 0.0 | >6.0 |0.0-1.0| Long | Frequent | --- | None | |May | 0.0 | >6.0 |0.0-1.0| Long | Frequent | --- | None | |June | 0.0 | >6.0 |0.0-1.0| Long | Frequent | --- | None | |October | 0.0 | >6.0 |0.0-1.0| Long | Frequent | --- | None | |November | 0.0 | >6.0 |0.0-1.0| Long | Frequent | --- | None | |December | 0.0 | >6.0 |0.0-1.0| Long | Frequent | --- | None | | | | | | | | |
Logan County, Oklahoma 469 Water Features—Continued _____________________________________________________________________________________________________________________ | | | Water table | Ponding | Flooding _______________________________________________________________________ Map symbol |Hydro-| Month | Upper | Lower |Surface| Duration |Frequency | Duration | Frequency and soil name |logic | | limit | limit | water | | | | |group | | | | depth | | | | _____________________________________________________________________________________________________________________ | | | Ft | Ft | Ft | | | | __ __ __ | | | | | | | | | BtlA: | | | | | | | | | Bathel--------------------| C | | | | | | | | | |January |2.0-3.5| >6.0 |0.0-1.0| Brief | Frequent | --- | None | |February |2.0-3.5| >6.0 |0.0-1.0| Brief | Frequent | --- | None | |March |2.0-3.5| >6.0 |0.0-1.0| Brief | Frequent | --- | None | |April |2.0-3.5| >6.0 |0.0-1.0| Brief | Frequent | --- | None | |May |2.0-3.5| >6.0 |0.0-1.0| Brief | Frequent | --- | None | |June | --- | --- |0.0-1.0| Brief | Frequent | --- | None | |July | --- | --- |0.0-1.0| Brief | Frequent | --- | None | |August | --- | --- |0.0-1.0| Brief | Frequent | --- | None | |September | --- | --- |0.0-1.0| Brief | Frequent | --- | None | |October |2.0-3.5| >6.0 |0.0-1.0| Brief | Frequent | --- | None | |November |2.0-3.5| >6.0 |0.0-1.0| Brief | Frequent | --- | None | |December |2.0-3.5| >6.0 |0.0-1.0| Brief | Frequent | --- | None | | | | | | | | | CaaA: | | | | | | | | | Canadian------------------| B | | | | | | | | | |April | --- | --- | --- | --- | None | Very brief | Rare | |May | --- | --- | --- | --- | None | Very brief | Rare | |June | --- | --- | --- | --- | None | Very brief | Rare | |July | --- | --- | --- | --- | None | Very brief | Rare | |August | --- | --- | --- | --- | None | Very brief | Rare | |September | --- | --- | --- | --- | None | Very brief | Rare | |October | --- | --- | --- | --- | None | Very brief | Rare | |November | --- | --- | --- | --- | None | Very brief | Rare | | | | | | | | | CAID: | | | | | | | | | Coyle---------------------| B | | | | | | | | | |Jan-Dec | --- | --- | --- | --- | None | --- | None | | | | | | | | | Ashport-------------------| B | | | | | | | | | |March | --- | --- | --- | --- | None | Brief | Frequent | |April | --- | --- | --- | --- | None | Brief | Frequent | |May | --- | --- | --- | --- | None | Brief | Frequent | |June | --- | --- | --- | --- | None | Brief | Frequent | |July | --- | --- | --- | --- | None | Brief | Frequent | |August | --- | --- | --- | --- | None | Brief | Frequent | |September | --- | --- | --- | --- | None | Brief | Frequent | |October | --- | --- | --- | --- | None | Brief | Frequent | | | | | | | | | Ironmound-----------------| C | | | | | | | | | |Jan-Dec | --- | --- | --- | --- | None | --- | None | | | | | | | | |
470 Soil Survey Water Features—Continued _____________________________________________________________________________________________________________________ | | | Water table | Ponding | Flooding _______________________________________________________________________ Map symbol |Hydro-| Month | Upper | Lower |Surface| Duration |Frequency | Duration | Frequency and soil name |logic | | limit | limit | water | | | | |group | | | | depth | | | | _____________________________________________________________________________________________________________________ | | | Ft | Ft | Ft | | | | __ __ __ | | | | | | | | | CoIC2: | | | | | | | | | Coyle---------------------| B | | | | | | | | | |Jan-Dec | --- | --- | --- | --- | None | --- | None | | | | | | | | | Ironmound-----------------| C | | | | | | | | | |Jan-Dec | --- | --- | --- | --- | None | --- | None | | | | | | | | | CoUB, CoUC: | | | | | | | | | Coyle---------------------| B | | | | | | | | | |Jan-Dec | --- | --- | --- | --- | None | --- | None | | | | | | | | | Urban land----------------| D | | | | | | | | | |Jan-Dec | --- | --- | --- | --- | None | --- | None | | | | | | | | | CoyB, CoyC2: | | | | | | | | | Coyle---------------------| B | | | | | | | | | |Jan-Dec | --- | --- | --- | --- | None | --- | None | | | | | | | | | CoZC3: | | | | | | | | | Coyle---------------------| B | | | | | | | | | |Jan-Dec | --- | --- | --- | --- | None | --- | None | | | | | | | | | Zaneis--------------------| B | | | | | | | | | |Jan-Dec | --- | --- | --- | --- | None | --- | None | | | | | | | | | DAM: | | | | | | | | | Dam-----------------------| D | | | | | | | | | |Jan-Dec | --- | --- | --- | --- | None | --- | None | | | | | | | | | DerB, DerD, DerE: | | | | | | | | | Derby---------------------| A | | | | | | | | | |Jan-Dec | --- | --- | --- | --- | None | --- | None | | | | | | | | | DiRG: | | | | | | | | | Darsil--------------------| C | | | | | | | | | |Jan-Dec | --- | --- | --- | --- | None | --- | None | | | | | | | | | Rock outcrop--------------| D | | | | | | | | | |Jan-Dec | --- | --- | --- | --- | None | --- | None | | | | | | | | | DouB, DouD: | | | | | | | | | Dougherty-----------------| A | | | | | | | | | |Jan-Dec | --- | --- | --- | --- | None | --- | None | | | | | | | | | DUM. | | | | | | | | | Dumps | | | | | | | | | | | | | | | | | |
Logan County, Oklahoma 471 Water Features—Continued _____________________________________________________________________________________________________________________ | | | Water table | Ponding | Flooding _______________________________________________________________________ Map symbol |Hydro-| Month | Upper | Lower |Surface| Duration |Frequency | Duration | Frequency and soil name |logic | | limit | limit | water | | | | |group | | | | depth | | | | _____________________________________________________________________________________________________________________ | | | Ft | Ft | Ft | | | | __ __ __ | | | | | | | | | EasA: | | | | | | | | | Easpur--------------------| B | | | | | | | | | |March | --- | --- | --- | --- | None | Brief | Occasional | |April | --- | --- | --- | --- | None | Brief | Occasional | |May | --- | --- | --- | --- | None | Brief | Occasional | |June | --- | --- | --- | --- | None | Brief | Occasional | |July | --- | --- | --- | --- | None | Brief | Occasional | |August | --- | --- | --- | --- | None | Brief | Occasional | |September | --- | --- | --- | --- | None | Brief | Occasional | |October | --- | --- | --- | --- | None | Brief | Occasional | | | | | | | | | GadA: | | | | | | | | | Gaddy---------------------| A | | | | | | | | | |March | --- | --- | --- | --- | None | Very brief | Occasional | |April | --- | --- | --- | --- | None | Very brief | Occasional | |May | --- | --- | --- | --- | None | Very brief | Occasional | |June | --- | --- | --- | --- | None | Very brief | Occasional | |July | --- | --- | --- | --- | None | Very brief | Occasional | |August | --- | --- | --- | --- | None | Very brief | Occasional | |September | --- | --- | --- | --- | None | Very brief | Occasional | |October | --- | --- | --- | --- | None | Very brief | Occasional | | | | | | | | | GaGA: | | | | | | | | | Gaddy---------------------| A | | | | | | | | | |March | --- | --- | --- | --- | None | Very brief | Frequent | |April | --- | --- | --- | --- | None | Very brief | Frequent | |May | --- | --- | --- | --- | None | Very brief | Frequent | |June | --- | --- | --- | --- | None | Very brief | Frequent | |July | --- | --- | --- | --- | None | Very brief | Frequent | |August | --- | --- | --- | --- | None | Very brief | Frequent | |September | --- | --- | --- | --- | None | Very brief | Frequent | |October | --- | --- | --- | --- | None | Very brief | Frequent | | | | | | | | | Gracemore-----------------| C | | | | | | | | | |January |0.5-1.5| >6.0 | --- | --- | None | --- | None | |February |0.5-1.5| >6.0 | --- | --- | None | --- | None | |March |0.5-1.5| >6.0 | --- | --- | None | Very brief | Frequent | |April |0.5-1.5| >6.0 | --- | --- | None | Very brief | Frequent | |May |0.5-1.5| >6.0 | --- | --- | None | Very brief | Frequent | |June | --- | --- | --- | --- | None | Very brief | Frequent | |July | --- | --- | --- | --- | None | Very brief | Frequent | |August | --- | --- | --- | --- | None | Very brief | Frequent | |September | --- | --- | --- | --- | None | Very brief | Frequent | |October | --- | --- | --- | --- | None | Very brief | Frequent | |November |0.5-1.5| >6.0 | --- | --- | None | --- | None | |December |0.5-1.5| >6.0 | --- | --- | None | --- | None | | | | | | | | |
472 Soil Survey Water Features—Continued _____________________________________________________________________________________________________________________ | | | Water table | Ponding | Flooding _______________________________________________________________________ Map symbol |Hydro-| Month | Upper | Lower |Surface| Duration |Frequency | Duration | Frequency and soil name |logic | | limit | limit | water | | | | |group | | | | depth | | | | _____________________________________________________________________________________________________________________ | | | Ft | Ft | Ft | | | | __ __ __ | | | | | | | | | GMGE4: | | | | | | | | | Grainola------------------| D | | | | | | | | | |Jan-Dec | --- | --- | --- | --- | None | --- | None | | | | | | | | | Masham--------------------| D | | | | | | | | | |Jan-Dec | --- | --- | --- | --- | None | --- | None | | | | | | | | | Gullied land. | | | | | | | | | | | | | | | | | | GMLG: | | | | | | | | | Grainola------------------| D | | | | | | | | | |Jan-Dec | --- | --- | --- | --- | None | --- | None | | | | | | | | | Masham--------------------| D | | | | | | | | | |Jan-Dec | --- | --- | --- | --- | None | --- | None | | | | | | | | | Lucien--------------------| C | | | | | | | | | |Jan-Dec | --- | --- | --- | --- | None | --- | None | | | | | | | | | GohC, GohE, GooE, GooG: | | | | | | | | | Goodnight-----------------| A | | | | | | | | | |Jan-Dec | --- | --- | --- | --- | None | --- | None | | | | | | | | | GraC, GraD2: | | | | | | | | | Grainola------------------| D | | | | | | | | | |Jan-Dec | --- | --- | --- | --- | None | --- | None | | | | | | | | | GrHC: | | | | | | | | | Grant---------------------| B | | | | | | | | | |Jan-Dec | --- | --- | --- | --- | None | --- | None | | | | | | | | | Huska---------------------| D | | | | | | | | | |Jan-Dec | --- | --- | --- | --- | None | --- | None | | | | | | | | | GrIE: | | | | | | | | | Grainola------------------| D | | | | | | | | | |Jan-Dec | --- | --- | --- | --- | None | --- | None | | | | | | | | | Ironmound-----------------| C | | | | | | | | | |Jan-Dec | --- | --- | --- | --- | None | --- | None | | | | | | | | | GrLE: | | | | | | | | | Grainola------------------| D | | | | | | | | | |Jan-Dec | --- | --- | --- | --- | None | --- | None | | | | | | | | | Lucien--------------------| C | | | | | | | | | |Jan-Dec | --- | --- | --- | --- | None | --- | None
Logan County, Oklahoma 473 Water Features—Continued _____________________________________________________________________________________________________________________ | | | Water table | Ponding | Flooding _______________________________________________________________________ Map symbol |Hydro-| Month | Upper | Lower |Surface| Duration |Frequency | Duration | Frequency and soil name |logic | | limit | limit | water | | | | |group | | | | depth | | | | _____________________________________________________________________________________________________________________ | | | Ft | Ft | Ft | | | | __ __ __ | | | | | | | | | HaGD4: | | | | | | | | | Harrah--------------------| B | | | | | | | | | |Jan-Dec | --- | --- | --- | --- | None | --- | None | | | | | | | | | Gullied land. | | | | | | | | | | | | | | | | | | HarC, HarC2, HarG: | | | | | | | | | Harrah--------------------| B | | | | | | | | | |Jan-Dec | --- | --- | --- | --- | None | --- | None | | | | | | | | | HawB: | | | | | | | | | Hawley--------------------| B | | | | | | | | | |April | --- | --- | --- | --- | None | Very brief | Rare | |May | --- | --- | --- | --- | None | Very brief | Rare | |June | --- | --- | --- | --- | None | Very brief | Rare | |July | --- | --- | --- | --- | None | Very brief | Rare | |August | --- | --- | --- | --- | None | Very brief | Rare | |September | --- | --- | --- | --- | None | Very brief | Rare | |October | --- | --- | --- | --- | None | Very brief | Rare | |November | --- | --- | --- | --- | None | Very brief | Rare | | | | | | | | | ICGD3: | | | | | | | | | Ironmound-----------------| C | | | | | | | | | |Jan-Dec | --- | --- | --- | --- | None | --- | None | | | | | | | | | Coyle---------------------| B | | | | | | | | | |Jan-Dec | --- | --- | --- | --- | None | --- | None | | | | | | | | | Grainola------------------| D | | | | | | | | | |Jan-Dec | --- | --- | --- | --- | None | --- | None | | | | | | | | | IrCE: | | | | | | | | | Ironmound-----------------| C | | | | | | | | | |Jan-Dec | --- | --- | --- | --- | None | --- | None | | | | | | | | | Coyle---------------------| B | | | | | | | | | |Jan-Dec | --- | --- | --- | --- | None | --- | None | | | | | | | | | IroC2: | | | | | | | | | Ironmound-----------------| C | | | | | | | | | |Jan-Dec | --- | --- | --- | --- | None | --- | None | | | | | | | | | KgfB, KinC2: | | | | | | | | | Kingfisher----------------| B | | | | | | | | | |Jan-Dec | --- | --- | --- | --- | None | --- | None | | | | | | | | |
474 Soil Survey Water Features—Continued _____________________________________________________________________________________________________________________ | | | Water table | Ponding | Flooding _______________________________________________________________________ Map symbol |Hydro-| Month | Upper | Lower |Surface| Duration |Frequency | Duration | Frequency and soil name |logic | | limit | limit | water | | | | |group | | | | depth | | | | _____________________________________________________________________________________________________________________ | | | Ft | Ft | Ft | | | | __ __ __ | | | | | | | | | KonB, KonD2: | | | | | | | | | Konawa--------------------| B | | | | | | | | | |Jan-Dec | --- | --- | --- | --- | None | --- | None | | | | | | | | | KrdA, KrkB: | | | | | | | | | Kirkland------------------| D | | | | | | | | | |Jan-Dec | --- | --- | --- | --- | None | --- | None | | | | | | | | | LarA: | | | | | | | | | Lawrie--------------------| B | | | | | | | | | |March | --- | --- | --- | --- | None | Very brief | Occasional | |April | --- | --- | --- | --- | None | Very brief | Occasional | |May | --- | --- | --- | --- | None | Very brief | Occasional | |June | --- | --- | --- | --- | None | Very brief | Occasional | |July | --- | --- | --- | --- | None | Very brief | Occasional | |August | --- | --- | --- | --- | None | Very brief | Occasional | |September | --- | --- | --- | --- | None | Very brief | Occasional | |October | --- | --- | --- | --- | None | Very brief | Occasional | | | | | | | | | LawA: | | | | | | | | | Lawrie--------------------| B | | | | | | | | | |March | --- | --- | --- | --- | None | Very brief | Rare | |April | --- | --- | --- | --- | None | Very brief | Rare | |May | --- | --- | --- | --- | None | Very brief | Rare | |June | --- | --- | --- | --- | None | Very brief | Rare | |July | --- | --- | --- | --- | None | Very brief | Rare | |August | --- | --- | --- | --- | None | Very brief | Rare | |September | --- | --- | --- | --- | None | Very brief | Rare | |October | --- | --- | --- | --- | None | Very brief | Rare | | | | | | | | |
Logan County, Oklahoma 475 Water Features—Continued _____________________________________________________________________________________________________________________ | | | Water table | Ponding | Flooding _______________________________________________________________________ Map symbol |Hydro-| Month | Upper | Lower |Surface| Duration |Frequency | Duration | Frequency and soil name |logic | | limit | limit | water | | | | |group | | | | depth | | | | _____________________________________________________________________________________________________________________ | | | Ft | Ft | Ft | | | | __ __ __ | | | | | | | | | LerA: | | | | | | | | | Lebron--------------------| D | | | | | | | | | |January | 0.0 |0.3-1.2|0.0-1.0|Very long | Frequent | --- | None | | |1.7-3.3| >6.0 | | | | | | |February | 0.0 |0.3-1.2|0.0-1.0|Very long | Frequent | --- | None | | |1.7-3.3| >6.0 | | | | | | |March | 0.0 |0.3-1.2|0.0-1.0|Very long | Frequent | Very brief | Occasional | | |1.7-3.3| >6.0 | | | | | | |April | 0.0 |0.3-1.2|0.0-1.0|Very long | Frequent | Very brief | Occasional | | |1.7-3.3| >6.0 | | | | | | |May | 0.0 |0.3-1.2|0.0-1.0|Very long | Frequent | Very brief | Occasional | | |1.7-3.3| >6.0 | | | | | | |June | 0.0 |0.3-1.2|0.0-1.0|Very long | Frequent | Very brief | Occasional | | |1.7-3.3| >6.0 | | | | | | |July |2.5-3.5| >6.0 | --- | --- | None | Very brief | Occasional | |August |2.5-3.5| >6.0 | --- | --- | None | Very brief | Occasional | |September |2.5-3.5| >6.0 | --- | --- | None | Very brief | Occasional | |October | 0.0 |0.3-1.2|0.0-1.0|Very long | Frequent | Very brief | Occasional | | |1.7-3.3| >6.0 | | | | | | |November | 0.0 |0.3-1.2|0.0-1.0|Very long | Frequent | --- | None | | |1.7-3.3| >6.0 | | | | | | |December | 0.0 |0.3-1.2|0.0-1.0|Very long | Frequent | --- | None | | |1.7-3.3| >6.0 | | | | | | | | | | | | | | LitB, LitC2: | | | | | | | | | Littleaxe-----------------| B | | | | | | | | | |Jan-Dec | --- | --- | --- | --- | None | --- | None | | | | | | | | | M-W. | | | | | | | | | Miscellaneous water | | | | | | | | | | | | | | | | | | MaID, MaIG: | | | | | | | | | Masham--------------------| D | | | | | | | | | |Jan-Dec | --- | --- | --- | --- | None | --- | None | | | | | | | | | Ironmound-----------------| C | | | | | | | | | |Jan-Dec | --- | --- | --- | --- | None | --- | None | | | | | | | | | MinB, MinC, MinD, MinF: | | | | | | | | | Minco---------------------| B | | | | | | | | | |Jan-Dec | --- | --- | --- | --- | None | --- | None | | | | | | | | |
476 Soil Survey Water Features—Continued _____________________________________________________________________________________________________________________ | | | Water table | Ponding | Flooding _______________________________________________________________________ Map symbol |Hydro-| Month | Upper | Lower |Surface| Duration |Frequency | Duration | Frequency and soil name |logic | | limit | limit | water | | | | |group | | | | depth | | | | _____________________________________________________________________________________________________________________ | | | Ft | Ft | Ft | | | | __ __ __ | | | | | | | | | MllA: | | | | | | | | | Miller--------------------| D | | | | | | | | | |March | --- | --- | --- | --- | None | Brief | Occasional | |April | --- | --- | --- | --- | None | Brief | Occasional | |May | --- | --- | --- | --- | None | Brief | Occasional | |June | --- | --- | --- | --- | None | Brief | Occasional | |July | --- | --- | --- | --- | None | Brief | Occasional | |August | --- | --- | --- | --- | None | Brief | Occasional | |September | --- | --- | --- | --- | None | Brief | Occasional | |October | --- | --- | --- | --- | None | Brief | Occasional | | | | | | | | | MulC, MulC2: | | | | | | | | | Mulhall-------------------| B | | | | | | | | | |Jan-Dec | --- | --- | --- | --- | None | --- | None | | | | | | | | | NavA, NavB: | | | | | | | | | Navina--------------------| B | | | | | | | | | |Jan-Dec | --- | --- | --- | --- | None | --- | None | | | | | | | | | NeGD4: | | | | | | | | | Newalla-------------------| D | | | | | | | | | |Jan-Dec | --- | --- | --- | --- | None | --- | None | | | | | | | | | Gullied land. | | | | | | | | | | | | | | | | | | NewB: | | | | | | | | | Newalla-------------------| D | | | | | | | | | |Jan-Dec | --- | --- | --- | --- | None | --- | None | | | | | | | | | NorA, NorB, NorC2: | | | | | | | | | Norge---------------------| B | | | | | | | | | |Jan-Dec | --- | --- | --- | --- | None | --- | None | | | | | | | | | OWHD: | | | | | | | | | Oil waste land------------| D | | | | | | | | | |Jan-Dec | --- | --- | --- | --- | None | --- | None | | | | | | | | | Huska---------------------| D | | | | | | | | | |Jan-Dec | --- | --- | --- | --- | None | --- | None | | | | | | | | | PieB, PieC2: | | | | | | | | | Piedmont------------------| D | | | | | | | | | |Jan-Dec | --- | --- | --- | --- | None | --- | None | | | | | | | | | PIT. | | | | | | | | | Pits | | | | | | | | | | | | | | | | | |
Logan County, Oklahoma 477 Water Features—Continued _____________________________________________________________________________________________________________________ | | | Water table | Ponding | Flooding _______________________________________________________________________ Map symbol |Hydro-| Month | Upper | Lower |Surface| Duration |Frequency | Duration | Frequency and soil name |logic | | limit | limit | water | | | | |group | | | | depth | | | | _____________________________________________________________________________________________________________________ | | | Ft | Ft | Ft | | | | __ __ __ | | | | | | | | | PukA: | | | | | | | | | Pulaski-------------------| B | | | | | | | | | |March | --- | --- | --- | --- | None | Very brief | Frequent | |April | --- | --- | --- | --- | None | Very brief | Frequent | |May | --- | --- | --- | --- | None | Very brief | Frequent | |June | --- | --- | --- | --- | None | Very brief | Frequent | |July | --- | --- | --- | --- | None | Very brief | Frequent | |August | --- | --- | --- | --- | None | Very brief | Frequent | |September | --- | --- | --- | --- | None | Very brief | Frequent | |October | --- | --- | --- | --- | None | Very brief | Frequent | | | | | | | | | PulA: | | | | | | | | | Pulaski-------------------| B | | | | | | | | | |March | --- | --- | --- | --- | None | Very brief | Occasional | |April | --- | --- | --- | --- | None | Very brief | Occasional | |May | --- | --- | --- | --- | None | Very brief | Occasional | |June | --- | --- | --- | --- | None | Very brief | Occasional | |July | --- | --- | --- | --- | None | Very brief | Occasional | |August | --- | --- | --- | --- | None | Very brief | Occasional | |September | --- | --- | --- | --- | None | Very brief | Occasional | |October | --- | --- | --- | --- | None | Very brief | Occasional | | | | | | | | | RenB, RenC, RewC2: | | | | | | | | | Renfrow-------------------| D | | | | | | | | | |Jan-Dec | --- | --- | --- | --- | None | --- | None | | | | | | | | | RinB, RnnC2: | | | | | | | | | Renthin-------------------| D | | | | | | | | | |Jan-Dec | --- | --- | --- | --- | None | --- | None | | | | | | | | | SDGD4: | | | | | | | | | Stephenville--------------| B | | | | | | | | | |Jan-Dec | --- | --- | --- | --- | None | --- | None | | | | | | | | | Darsil--------------------| C | | | | | | | | | |Jan-Dec | --- | --- | --- | --- | None | --- | None | | | | | | | | | Gullied land. | | | | | | | | | | | | | | | | | | SDND, SDND2: | | | | | | | | | Stephenville--------------| B | | | | | | | | | |Jan-Dec | --- | --- | --- | --- | None | --- | None | | | | | | | | | Darsil--------------------| C | | | | | | | | | |Jan-Dec | --- | --- | --- | --- | None | --- | None | | | | | | | | |
478 Soil Survey Water Features—Continued _____________________________________________________________________________________________________________________ | | | Water table | Ponding | Flooding _______________________________________________________________________ Map symbol |Hydro-| Month | Upper | Lower |Surface| Duration |Frequency | Duration | Frequency and soil name |logic | | limit | limit | water | | | | |group | | | | depth | | | | _____________________________________________________________________________________________________________________ | | | Ft | Ft | Ft | | | | __ __ __ | | | | | | | | | SDND, SDND2: | | | | | | | | | Newalla-------------------| D | | | | | | | | | |Jan-Dec | --- | --- | --- | --- | None | --- | None | | | | | | | | | SlaB, SlaD, SlaF: | | | | | | | | | Slaughterville------------| B | | | | | | | | | |Jan-Dec | --- | --- | --- | --- | None | --- | None | | | | | | | | | StDC, StDC2, StDE: | | | | | | | | | Stephenville--------------| B | | | | | | | | | |Jan-Dec | --- | --- | --- | --- | None | --- | None | | | | | | | | | Darsil--------------------| C | | | | | | | | | |Jan-Dec | --- | --- | --- | --- | None | --- | None | | | | | | | | | SteB, SteC2: | | | | | | | | | Stephenville--------------| B | | | | | | | | | |Jan-Dec | --- | --- | --- | --- | None | --- | None | | | | | | | | | SUND: | | | | | | | | | Stephenville--------------| B | | | | | | | | | |Jan-Dec | --- | --- | --- | --- | None | --- | None | | | | | | | | | Urban land----------------| D | | | | | | | | | |Jan-Dec | --- | --- | --- | --- | None | --- | None | | | | | | | | | Newalla-------------------| D | | | | | | | | | |Jan-Dec | --- | --- | --- | --- | None | --- | None | | | | | | | | | TelB, TelC2: | | | | | | | | | Teller--------------------| B | | | | | | | | | |Jan-Dec | --- | --- | --- | --- | None | --- | None | | | | | | | | | TriA: | | | | | | | | | Tribbey-------------------| C | | | | | | | | | |January |0.5-3.5| >6.0 | --- | --- | None | Brief | Frequent | |February |0.5-3.5| >6.0 | --- | --- | None | Brief | Frequent | |March |0.5-3.5| >6.0 | --- | --- | None | Brief | Frequent | |April |0.5-3.5| >6.0 | --- | --- | None | Brief | Frequent | |May |0.5-3.5| >6.0 | --- | --- | None | Brief | Frequent | |June | --- | --- | --- | --- | None | Brief | Frequent | |July | --- | --- | --- | --- | None | Brief | Frequent | |August | --- | --- | --- | --- | None | Brief | Frequent | |September | --- | --- | --- | --- | None | Brief | Frequent | |October |0.5-3.5| >6.0 | --- | --- | None | Brief | Frequent | |November |0.5-3.5| >6.0 | --- | --- | None | Brief | Frequent | |December |0.5-3.5| >6.0 | --- | --- | None | Brief | Frequent
Logan County, Oklahoma 479 Water Features—Continued _____________________________________________________________________________________________________________________ | | | Water table | Ponding | Flooding _______________________________________________________________________ Map symbol |Hydro-| Month | Upper | Lower |Surface| Duration |Frequency | Duration | Frequency and soil name |logic | | limit | limit | water | | | | |group | | | | depth | | | | _____________________________________________________________________________________________________________________ | | | Ft | Ft | Ft | | | | __ __ __ | | | | | | | | | URB: | | | | | | | | | Urban land----------------| D | | | | | | | | | |Jan-Dec | --- | --- | --- | --- | None | --- | None W. | | | | | | | | | Water | | | | | | | | | | | | | | | | | | YaaA, YahA: | | | | | | | | | Yahola--------------------| B | | | | | | | | | |April | --- | --- | --- | --- | None | Brief | Occasional | |May | --- | --- | --- | --- | None | Brief | Occasional | |June | --- | --- | --- | --- | None | Brief | Occasional | |July | --- | --- | --- | --- | None | Brief | Occasional | |August | --- | --- | --- | --- | None | Brief | Occasional | |September | --- | --- | --- | --- | None | Brief | Occasional | |October | --- | --- | --- | --- | None | Brief | Occasional | | | | | | | | | ZaHC: | | | | | | | | | Zaneis--------------------| B | | | | | | | | | |Jan-Dec | --- | --- | --- | --- | None | --- | None | | | | | | | | | Huska---------------------| D | | | | | | | | | |Jan-Dec | --- | --- | --- | --- | None | --- | None | | | | | | | | | ZanB, ZanC, ZanC2: | | | | | | | | | Zaneis--------------------| B | | | | | | | | | |Jan-Dec | --- | --- | --- | --- | None | --- | None | | | | | | | | | _____________________________________________________________________________________________________________________
480 Soil Survey

Soil Features

The table “Soil Features” gives estimates of various soil features. The estimates are

used in land use planning that involves engineering considerations.

A restrictive layer is a nearly continuous layer that has one or more physical,

chemical, or thermal properties that significantly impede the movement of water and

air through the soil or that otherwise provide an unfavorable root environment.

Examples are bedrock, cemented layers, dense layers, and frozen layers. Depth to top

is the vertical distance from the soil surface to the upper boundary of the restrictive

layer.

Potential for frost action is the likelihood of upward or lateral expansion of the soil

caused by the formation of segregated ice lenses (frost heave) and the subsequent

collapse of the soil and loss of strength on thawing. Frost action occurs when moisture

moves into the freezing zone of the soil. Temperature, texture, density, permeability,

content of organic matter, and depth to the water table are the most important factors

considered in evaluating the potential for frost action. It is assumed that the soil is not

insulated by vegetation or snow and is not artificially drained. Silty and highly

structured, clayey soils that have a high water table in winter are the most susceptible

to frost action. Well drained, very gravelly, or very sandy soils are the least susceptible.

Frost heave and low soil strength during thawing cause damage mainly to pavements

and other rigid structures.

Risk of corrosion pertains to potential soil-induced electrochemical or chemical

action that dissolves or weakens uncoated steel or concrete. The rate of corrosion of

uncoated steel is related to such factors as soil moisture, particle-size distribution,

acidity, and electrical conductivity of the soil. The rate of corrosion of concrete is based

mainly on the sulfate and sodium content, texture, moisture content, and acidity of the

soil. Special site examination and design may be needed if the combination of factors

results in a severe hazard of corrosion. The steel in installations that intersect soil

boundaries or soil layers is more susceptible to corrosion than steel in installations that

are entirely within one kind of soil or within one soil layer.

For uncoated steel, the risk of corrosion, expressed as low, moderate, or high, is

based on soil drainage class, total acidity, electrical resistivity near field capacity, and

electrical conductivity of the saturation extract.

For concrete, the risk of corrosion also is expressed as low, moderate, or high. It is

based on soil texture, acidity, and amount of sulfates in the saturation extract.
Logan County, Oklahoma 481

Soil Features

(See text for definitions of terms used in this table. Absence of an entry

 indicates that the feature is not a concern or that data were not estimated)

__________________________________________________________________________________

 Map symbol | Restrictive layer | Potential | Risk of corrosion ______________________ _____________________

 and soil name | | Depth | for | Uncoated |

 | Kind |to top |frost action| steel | Concrete __________________________________________________________________________________

 | | In | | | __

 | | | | |

AspA, AstA: | | | | |

 Ashport----------------| --- | --- |None |Moderate |Low

 | | | | |

BetA, BetB: | | | | |

 Bethany----------------| --- | --- |None |High |Low

 | | | | |

BocA: | | | | |

 Bocox------------------| --- | --- |None |Moderate |Low

 | | | | |

BtlA: | | | | |

 Bathel-----------------| --- | --- |None |Moderate |Low

 | | | | |

CaaA: | | | | |

 Canadian---------------| --- | --- |None |Low |Low

 | | | | |

CAID: | | | | |

 Coyle------------------|Bedrock | 20-40 |None |Moderate |Low

 | (paralithic) | | | |

 | | | | |

 Ashport----------------| --- | --- |None |Moderate |Low

 | | | | |

 Ironmound--------------|Bedrock | 10-20 |None |Low |Low

 | (paralithic) | | | |

 | | | | |

CoIC2: | | | | |

 Coyle------------------|Bedrock | 20-40 |None |Moderate |Low

 | (paralithic) | | | |

 | | | | |

 Ironmound--------------|Bedrock | 10-20 |None |Low |Low

 | (paralithic) | | | |

 | | | | |

CoUB, CoUC: | | | | |

 Coyle------------------|Bedrock | 20-40 |None |Moderate |Low

 | (paralithic) | | | |

 | | | | |

 Urban land. | | | | |

 | | | | |

CoyB, CoyC2: | | | | |

 Coyle------------------|Bedrock | 20-40 |None |Moderate |Low

 | (paralithic) | | | |

 | | | | |

CoZC3: | | | | |

 Coyle------------------|Bedrock | 20-40 |None |Moderate |Low

 | (paralithic) | | | |

 | | | | |

 Zaneis-----------------|Bedrock | 40-60 |None |Moderate |Low

 | (paralithic) | | | |

 | | | | |

DAM. | | | | |

 Dam | | | | |

 | | | | |

DerB, DerD, DerE: | | | | |

 Derby------------------| --- | --- |None |Low |Moderate

 | | | | |
482 Soil Survey

Soil Features—Continued

__________________________________________________________________________________

 Map symbol | Restrictive layer | Potential | Risk of corrosion ______________________ _____________________

 and soil name | | Depth | for | Uncoated |

 | Kind |to top |frost action| steel | Concrete __________________________________________________________________________________

 | | In | | | __

 | | | | |

DiRG: | | | | |

 Darsil-----------------|Bedrock | 10-20 |None |Low |Moderate

 | (paralithic) | | | |

 | | | | |

 Rock outcrop-----------|Bedrock | 0-0 |None | --- | ---

 | (paralithic) | | | |

 | | | | |

DouB, DouD: | | | | |

 Dougherty--------------| --- | --- |None |Moderate |Moderate

 | | | | |

DUM. | | | | |

 Dumps | | | | |

 | | | | |

EasA: | | | | |

 Easpur-----------------| --- | --- |None |Moderate |Low

 | | | | |

GadA: | | | | |

 Gaddy------------------| --- | --- |None |Low |Low

 | | | | |

GaGA: | | | | |

 Gaddy------------------| --- | --- |None |Low |Low

 | | | | |

 Gracemore--------------| --- | --- |None |Moderate |Low

 | | | | |

GMGE4: | | | | |

 Grainola---------------|Bedrock | 20-40 |None |High |Low

 | (paralithic) | | | |

 | | | | |

 Masham-----------------|Bedrock | 10-20 |None |High |Low

 | (paralithic) | | | |

 | | | | |

 Gullied land. | | | | |

 | | | | |

GMLG: | | | | |

 Grainola---------------|Bedrock | 20-40 |None |High |Low

 | (paralithic) | | | |

 | | | | |

 Masham-----------------|Bedrock | 10-20 |None |High |Low

 | (paralithic) | | | |

 | | | | |

 Lucien-----------------|Bedrock | 10-20 |None |Low |Low

 | (paralithic) | | | |

 | | | | |

GohC, GohE, GooE, GooG: | | | | |

 Goodnight--------------| --- | --- |None |Low |Low

 | | | | |

GraC, GraD2: | | | | |

 Grainola---------------|Bedrock | 20-40 |None |High |Low

 | (paralithic) | | | |

 | | | | |

GrHC: | | | | |

 Grant------------------|Bedrock | 40-60 |None |Moderate |Low

 | (paralithic) | | | |

 | | | | |

 Huska------------------|Bedrock | 40-60 |None |High |Moderate

 | (paralithic) | | | |

 | | | | |
Logan County, Oklahoma 483

Soil Features—Continued

__________________________________________________________________________________

 Map symbol | Restrictive layer | Potential | Risk of corrosion ______________________ _____________________

 and soil name | | Depth | for | Uncoated |

 | Kind |to top |frost action| steel | Concrete __________________________________________________________________________________

 | | In | | | __

 | | | | |

GrIE: | | | | |

 Grainola---------------|Bedrock | 20-40 |None |High |Low

 | (paralithic) | | | |

 | | | | |

 Ironmound--------------|Bedrock | 10-20 |None |Low |Low

 | (paralithic) | | | |

 | | | | |

GrLE: | | | | |

 Grainola---------------|Bedrock | 20-40 |None |High |Low

 | (paralithic) | | | |

 | | | | |

 Lucien-----------------|Bedrock | 10-20 |None |Low |Low

 | (paralithic) | | | |

 | | | | |

HaGD4: | | | | |

 Harrah-----------------| --- | --- |None |Moderate |Moderate

 | | | | |

 Gullied land. | | | | |

 | | | | |

HarC, HarC2, HarG: | | | | |

 Harrah-----------------| --- | --- |None |Moderate |Moderate

 | | | | |

HawB: | | | | |

 Hawley-----------------| --- | --- |None |Low |Moderate

 | | | | |

ICGD3: | | | | |

 Ironmound--------------|Bedrock | 10-20 |None |Low |Low

 | (paralithic) | | | |

 | | | | |

 Coyle------------------|Bedrock | 20-40 |None |Moderate |Low

 | (paralithic) | | | |

 | | | | |

 Grainola---------------|Bedrock | 20-40 |None |High |Low

 | (paralithic) | | | |

 | | | | |

IrCE: | | | | |

 Ironmound--------------|Bedrock | 10-20 |None |Low |Low

 | (paralithic) | | | |

 | | | | |

 Coyle------------------|Bedrock | 20-40 |None |Moderate |Low

 | (paralithic) | | | |

 | | | | |

IroC2: | | | | |

 Ironmound--------------|Bedrock | 10-20 |None |Low |Low

 | (paralithic) | | | |

 | | | | |

KgfB, KinC2: | | | | |

 Kingfisher-------------|Bedrock | 20-40 |None |Moderate |Low

 | (paralithic) | | | |

 | | | | |

KonB, KonD2: | | | | |

 Konawa-----------------| --- | --- |None |Moderate |Moderate

 | | | | |

KrdA, KrkB: | | | | |

 Kirkland---------------|Bedrock | 60-99 |None |High |Low

 | (paralithic) | | | |

 | | | | |

LarA, LawA: | | | | |

 Lawrie-----------------| --- | --- |None |Moderate |Low

 | | | | |
484 Soil Survey

Soil Features—Continued

__________________________________________________________________________________

 Map symbol | Restrictive layer | Potential | Risk of corrosion ______________________ _____________________

 and soil name | | Depth | for | Uncoated |

 | Kind |to top |frost action| steel | Concrete __________________________________________________________________________________

 | | In | | | __

 | | | | |

LerA: | | | | |

 Lebron-----------------| --- | --- |None |High |Low

 | | | | |

LitB, LitC2: | | | | |

 Littleaxe--------------|Bedrock | 40-60 |None |Moderate |Moderate

 | (paralithic) | | | |

 | | | | |

M-W. | | | | |

 Miscellaneous water | | | | |

 | | | | |

MaID, MaIG: | | | | |

 Masham-----------------|Bedrock | 10-20 |None |High |Low

 | (paralithic) | | | |

 | | | | |

 Ironmound--------------|Bedrock | 10-20 |None |Low |Low

 | (paralithic) | | | |

 | | | | |

MinB, MinC, MinD, MinF: | | | | |

 Minco------------------| --- | --- |None |Low |Low

 | | | | |

MllA: | | | | |

 Miller-----------------| --- | --- |None |High |Low

 | | | | |

MulC, MulC2: | | | | |

 Mulhall----------------|Bedrock | 60-80 |None |Moderate |Low

 | (paralithic) | | | |

 | | | | |

NavA, NavB: | | | | |

 Navina-----------------| --- | --- |None |Moderate |Low

 | | | | |

NeGD4: | | | | |

 Newalla----------------|Bedrock | 40-60 |None |High |Moderate

 | (paralithic) | | | |

 | | | | |

 Gullied land. | | | | |

 | | | | |

NewB: | | | | |

 Newalla----------------|Bedrock | 40-60 |None |High |Moderate

 | (paralithic) | | | |

 | | | | |

NorA, NorB, NorC2: | | | | |

 Norge------------------| --- | --- |None |Moderate |Low

 | | | | |

OWHD: | | | | |

 Oil waste land. | | | | |

 | | | | |

 Huska------------------|Bedrock | 40-60 |None |High |Moderate

 | (paralithic) | | | |

 | | | | |

PieB, PieC2: | | | | |

 Piedmont---------------|Bedrock | 20-40 |None |High |Low

 | (paralithic) | | | |

 | | | | |

PIT. | | | | |

 Pits | | | | |

 | | | | |

PukA, PulA: | | | | |

 Pulaski----------------| --- | --- |None |Low |Moderate

 | | | | |
Logan County, Oklahoma 485

Soil Features—Continued

__________________________________________________________________________________

 Map symbol | Restrictive layer | Potential | Risk of corrosion ______________________ _____________________

 and soil name | | Depth | for | Uncoated |

 | Kind |to top |frost action| steel | Concrete __________________________________________________________________________________

 | | In | | | __

 | | | | |

RenB, RenC, RewC2: | | | | |

 Renfrow----------------|Bedrock | 60-96 |None |High |Low

 | (paralithic) | | | |

 | | | | |

RinB, RnnC2: | | | | |

 Renthin----------------|Bedrock | 40-60 |None |High |Low

 | (paralithic) | | | |

 | | | | |

SDGD4: | | | | |

 Stephenville-----------|Bedrock | 20-40 |None |Moderate |Moderate

 | (paralithic) | | | |

 | | | | |

 Darsil-----------------|Bedrock | 10-20 |None |Low |Moderate

 | (paralithic) | | | |

 | | | | |

 Gullied land. | | | | |

 | | | | |

SDND, SDND2: | | | | |

 Stephenville-----------|Bedrock | 20-40 |None |Moderate |Moderate

 | (paralithic) | | | |

 | | | | |

 Darsil-----------------|Bedrock | 10-20 |None |Low |Moderate

 | (paralithic) | | | |

 | | | | |

 Newalla----------------|Bedrock | 40-60 |None |High |Moderate

 | (paralithic) | | | |

 | | | | |

SlaB, SlaD, SlaF: | | | | |

 Slaughterville---------| --- | --- |None |Low |Low

 | | | | |

StDC, StDC2, StDE: | | | | |

 Stephenville-----------|Bedrock | 20-40 |None |Moderate |Moderate

 | (paralithic) | | | |

 | | | | |

 Darsil-----------------|Bedrock | 10-20 |None |Low |Moderate

 | (paralithic) | | | |

 | | | | |

SteB, SteC2: | | | | |

 Stephenville-----------|Bedrock | 20-40 |None |Moderate |Moderate

 | (paralithic) | | | |

 | | | | |

SUND: | | | | |

 Stephenville-----------|Bedrock | 20-40 |None |Moderate |Moderate

 | (paralithic) | | | |

 | | | | |

 Urban land. | | | | |

 | | | | |

 Newalla----------------|Bedrock | 40-60 |None |High |Moderate

 | (paralithic) | | | |

 | | | | |

TelB, TelC2: | | | | |

 Teller-----------------| --- | --- |None |Low |Moderate

 | | | | |

TriA: | | | | |

 Tribbey----------------| --- | --- |None |High |Low

 | | | | |

URB. | | | | |

 Urban land | | | | |

 | | | | |
486

Soil Features—Continued

__________________________________________________________________________________

 Map symbol | Restrictive layer | Potential | Risk of corrosion ______________________ _____________________

 and soil name | | Depth | for | Uncoated |

 | Kind |to top |frost action| steel | Concrete __________________________________________________________________________________

 | | In | | | __

 | | | | |

W. | | | | |

 Water | | | | |

 | | | | |

YaaA, YahA: | | | | |

 Yahola-----------------| --- | --- |None |Low |Low

 | | | | |

ZaHC: | | | | |

 Zaneis-----------------|Bedrock | 40-60 |None |Moderate |Low

 | (paralithic) | | | |

 | | | | |

 Huska------------------|Bedrock | 40-60 |None |High |Moderate

 | (paralithic) | | | |

 | | | | |

ZanB, ZanC, ZanC2: | | | | |

 Zaneis-----------------|Bedrock | 40-60 |None |Moderate |Low

 | (paralithic) | | | |

 | | | | | __________________________________________________________________________________
487

The system of soil classification used by the National Cooperative Soil Survey has

six categories (9, 10). Beginning with the broadest, these categories are the order,

suborder, great group, subgroup, family, and series. Classification is based on soil

properties observed in the field or inferred from those observations or from laboratory

measurements. The table “Classification of the Soils” lists each soil series in the

survey area and gives its classification. The categories are defined in the following

paragraphs.

ORDER. Twelve soil orders are recognized. The differences among orders reflect

the dominant soil-forming processes and the degree of soil formation. Each order is

identified by a word ending in sol. An example is Mollisol.

SUBORDER. Each order is divided into suborders primarily on the basis of

properties that influence soil genesis and are important to plant growth or properties

that reflect the most important variables within the orders. The last syllable in the name

of a suborder indicates the order. An example is Ustoll (Ust, meaning dry, plus oll, from

Mollisol).

GREAT GROUP. Each suborder is divided into great groups on the basis of close

similarities in kind, arrangement, and degree of development of pedogenic horizons;

soil moisture and temperature regimes; and base status. Each great group is identified

by the name of a suborder and by a prefix that indicates a property of the soil. An

example is Argiustolls (Argi, meaning argillic horizonation, plus ustoll, the suborder of

the Mollisols that has an ustic moisture regime).

SUBGROUP. Each great group has a typic subgroup. Other subgroups are

intergrades or extragrades. The typic is the central concept of the great group; it is not

necessarily the most extensive. Intergrades are transitions to other orders, suborders,

or great groups. Extragrades have some properties that are not representative of the

great group but do not indicate transitions to any other known kind of soil. Each

subgroup is identified by one or more adjectives preceding the name of the great

group. An example is Udic Argiustolls.

FAMILY. Families are established within a subgroup on the basis of physical and

chemical properties and other characteristics that affect management. Generally, the

properties are those of horizons below plow depth where there is much biological

activity. Among the properties and characteristics considered are particle-size class,

mineral content, temperature regime, thickness of the root zone, consistence, moisture

equivalent, slope, and permanent cracks. A family name consists of the name of a

subgroup preceded by terms that indicate soil properties. An example is fine-loamy,

mixed, thermic Udic Argiustolls.

SERIES. The series consists of soils that have similar horizons in their profile. The

horizons are similar in color, texture, structure, reaction, consistence, mineral and

chemical composition, and arrangement in the profile. The texture of the surface layer

or of the substratum can differ within a series.

Classification of the Soils
488 Soil Survey

Classification of the Soils

____________________________________________________________________________________________________

 |

 Soil name | Family or higher taxonomic class

 | ____________________________________________________________________________________________________

 |

 Ashport------------------|Fine-silty, mixed, superactive, thermic Fluventic Haplustolls

 Bathel-------------------|Fine-loamy, mixed, superactive, thermic Aquic Hapludalfs

 Bethany------------------|Fine, mixed, superactive, thermic Pachic Paleustolls

 Bocox--------------------|Loamy, mixed, active, thermic Aquic Arenic Hapludalfs

 Canadian-----------------|Coarse-loamy, mixed, superactive, thermic Udic Haplustolls

 Coyle--------------------|Fine-loamy, siliceous, active, thermic Udic Argiustolls

 Darsil-------------------|Thermic, shallow and coated Ustic Quartzipsamments

 Derby--------------------|Mixed, thermic Lamellic Ustipsamments

 Dougherty----------------|Loamy, mixed, active, thermic Arenic Haplustalfs

 Easpur-------------------|Fine-loamy, mixed, superactive, thermic Fluventic Haplustolls

 Gaddy--------------------|Sandy, mixed, thermic Udic Ustifluvents

 Goodnight----------------|Mixed, thermic Typic Ustipsamments

 Gracemore----------------|Sandy, mixed, thermic Oxyaquic Udifluvents

 Grainola-----------------|Fine, mixed, active, thermic Udertic Haplustalfs

 Grant--------------------|Fine-silty, mixed, superactive, thermic Udic Argiustolls

 Harrah-------------------|Fine-loamy, siliceous, active, thermic Ultic Paleustalfs

 Hawley-------------------|Coarse-loamy, mixed, active, thermic Fluventic Haplustepts

 Huska--------------------|Fine, mixed, superactive, thermic Mollic Natrustalfs

 Ironmound----------------|Loamy, mixed, active, thermic, shallow Udic Haplustepts

 Kingfisher---------------|Fine-silty, mixed, active, thermic Udic Argiustolls

 Kirkland-----------------|Fine, mixed, superactive, thermic Udertic Paleustolls

 Konawa-------------------|Fine-loamy, mixed, active, thermic Ultic Haplustalfs

 Lawrie-------------------|Fine-silty, mixed, superactive, thermic Pachic Argiustolls

 Lebron-------------------|Clayey over sandy or sandy-skeletal, mixed, superactive, thermic

 | Fluvaquentic Hapludolls

 Littleaxe----------------|Fine-loamy, siliceous, active, thermic Ultic Haplustalfs

 Lucien-------------------|Loamy, mixed, superactive, thermic, shallow Udic Haplustolls

 Masham-------------------|Clayey, mixed, active, thermic, shallow Udic Haplustepts

 Miller-------------------|Fine, mixed, superactive, thermic Udertic Haplustolls

 Minco--------------------|Coarse-silty, mixed, superactive, thermic Udic Haplustolls

 Mulhall------------------|Fine-loamy, siliceous, active, thermic Udic Paleustolls

 Navina-------------------|Fine-loamy, mixed, active, thermic Udic Argiustolls

 Newalla------------------|Fine-loamy over clayey, siliceous, superactive, thermic Udic Haplustalfs

 Norge--------------------|Fine-silty, mixed, active, thermic Udic Paleustolls

 Piedmont-----------------|Fine, mixed, superactive, thermic Udertic Argiustolls

 Pulaski------------------|Coarse-loamy, mixed, superactive, nonacid, thermic Udic Ustifluvents

 Renfrow------------------|Fine, mixed, superactive, thermic Udertic Paleustolls

 Renthin------------------|Fine, mixed, superactive, thermic Udertic Argiustolls

 Slaughterville-----------|Coarse-loamy, mixed, superactive, thermic Udic Haplustolls

 Stephenville-------------|Fine-loamy, siliceous, active, thermic Ultic Haplustalfs

 Teller-------------------|Fine-loamy, mixed, active, thermic Udic Argiustolls

 Tribbey------------------|Coarse-loamy, mixed, superactive, nonacid, thermic Oxyaquic Udifluvents

 Yahola-------------------|Coarse-loamy, mixed, superactive, calcareous, thermic Udic Ustifluvents

 Zaneis-------------------|Fine-loamy, siliceous, active, thermic Udic Argiustolls

 | ____________________________________________________________________________________________________
Logan County, Oklahoma 489

Soil Series and Their Morphology

In this section, each soil series recognized in the survey area is described.

Characteristics of the soil and the material in which it formed are identified for each

soil series. In addition, the physiographic region, province, and subprovince are

specified for most of the series (5). A pedon, a small three-dimensional area of soil,

which is typical of the series in the survey area is described. The detailed description

of each soil horizon follows standards in the “Soil Survey Manual” (12). Many of the

technical terms used in the descriptions are defined in “Soil Taxonomy” (10) and “Keys

to Soil Taxonomy” (9). Following the pedon description is the range of important

characteristics of the soils in the series.

The map units of each soil series are described in the section “Detailed Soil Map

Units.”

Ashport Series

Major land resource area: Central Rolling Red Prairies (80A)

Depth class: Very deep

Drainage class: Well drained

Parent material and geologic age: Loamy alluvium of Recent age

Physiographic region: Interior Lowlands

Physiographic province: Central Lowland

Physiographic sub-province: Osage Plain

Landscape: Valley

Landform: Low flood plain

Slope range: 0 to 3 percent

Slope shape: Linear-linear

Elevation range: 700 to 1,500 feet

Mean annual precipitation: 26 to 40 inches

Mean annual air temperature: 58 to 65 degrees F

Frost-free days: 200 to 230

Thornthwaite PE index: 44 to 64

Taxonomic class: Fine-silty, mixed, superactive, thermic Fluventic Haplustolls

Associated Soils

• Dale soils which have a mollic epipedon more than 20 inches thick; at the slightly

higher elevations or on the higher flood plains that are rarely flooded

• Port soils which have a mollic epipedon more than 20 inches thick; on landscapes

similar to those of the Ashport soils but commonly further from the stream channel

• Pulaski soils which have a coarse-loamy control section and do not have a mollic

epipedon; on landscapes similar to those of the Ashport soils but generally nearer to

the stream channel

Typical Pedon

Ashport silty clay loam; Payne County, Oklahoma; in a cultivated area, about 1/2 mile

west of Stillwater, 2,440 feet east and 920 feet north of the southwest corner of sec.

16, T. 19 N., R. 2 E. (Colors are for dry soil unless otherwise stated.)

Ap—0 to 5 inches; dark reddish gray (5YR 4/2) silty clay loam, dark reddish brown

(5YR 3/2) moist; weak medium platy structure; hard, firm; many fine roots; slightly

acid; abrupt smooth boundary. (0 to 8 inches thick)

A—5 to 16 inches; dark reddish gray (5YR 4/2) silty clay loam, dark reddish brown

(5YR 3/2) moist; moderate medium subangular blocky structure; hard, firm; many

fine roots; neutral; clear smooth boundary. (0 to 16 inches thick)
490 Soil Survey

Bw—16 to 36 inches; reddish brown (5YR 5/4) silty clay loam, reddish brown (5YR

5/4) moist; weak coarse prismatic structure parting to moderate coarse

subangular blocky; hard, firm; few fine roots; slightly acid; clear smooth boundary.

(14 to 54 inches thick)

Ab—36 to 52 inches; dark reddish gray (5YR 4/2) loam, dark reddish brown (5YR 3/2)

moist; weak coarse prismatic structure parting to weak medium granular; slightly

hard, friable; slightly acid; gradual smooth boundary. (0 to 20 inches thick)

Bwb—52 to 66 inches; reddish brown (5YR 5/4) loam, reddish brown (5YR 4/4) moist;

weak coarse prismatic structure parting to weak medium subangular blocky;

slightly hard, friable; slightly acid; gradual smooth boundary. (0 to 27 inches thick)

BCb—66 to 80 inches; yellowish red (5YR 5/6) loam, yellowish red (5YR 4/6) moist;

weak coarse prismatic structure parting to weak coarse subangular blocky; slightly

hard, friable; neutral.

Range in Characteristics

Thickness of the mollic epipedon: Less than 20 inches

Thickness of the solum: 26 to more than 60 inches

Depth to carbonates: 20 to 60 inches

Depth to bedrock: More than 80 inches

Depth to buried horizon: 24 to more than 60 inches

A horizon:

Color—hue of 5YR to 10YR, value of 4 or 5, and chroma of 2 or 3

Texture—silt loam, loam, clay loam, or silty clay loam

Reaction—moderately acid to moderately alkaline

Roots—many, fine

Clay content—15 to 35 percent

Thickness—10 to 16 inches

Bw horizon:

Color—hue of 2.5YR to 7.5YR, value of 3 to 5, and chroma of 3 to 6

Texture—silty clay loam, clay loam, loam, or silt loam

Reaction—slightly acid to moderately alkaline

Roots—few, fine

Clay content—18 to 35 percent

Thickness—14 to 54 inches

C horizon (if it occurs):

Color—hue of 2.5YR or 5YR, value of 4 or 5, and chroma of 3 to 6

Texture—loam, silt loam, silty clay loam, or clay loam that is stratified with coarser

or finer materials

Reaction—slightly alkaline or moderately alkaline

Clay content—18 to 35 percent

Thickness—0 to 24 inches

Ab horizon:

Color—hue of 5YR or 7.5YR, value of 4 or 5, and chroma of 2 to 4

Texture—loam, silt loam, clay loam, or silty clay loam

Reaction—slightly acid to moderately alkaline

Clay content—18 to 35 percent

Thickness—0 to 20 inches

Bwb horizon:

Color—hue of 2.5YR to 7.5YR, value of 4 or 5, and chroma of 3 to 6

Texture—loam, silt loam, or silty clay loam

Reaction—slightly acid to moderately alkaline
Logan County, Oklahoma 491

Clay content—18 to 35 percent

Thickness—0 to 27 inches

BCb horizon:

Color—hue of 2.5YR to 7.5YR, value of 4 or 5, and chroma of 4 to 6

Texture—loam, silt loam, or silty clay loam

Reaction—slightly acid to moderately alkaline

Clay content—18 to 35 percent

Bathel Series

Major land resource area: Central Rolling Red Prairies (80A)

Depth class: Very deep

Drainage class: Somewhat poorly drained

Parent material and geologic age: Loamy alluvium or eolian sediments of Pleistocene

age

Physiographic region: Interior Lowlands

Physiographic province: Central Lowland

Physiographic sub-province: Osage Plain

Primary landscape: Upland

Secondary landscape: Terrace

Landform: Dune

Landform position: Interdune

Slope range: 0 to 3 percent

Slope shape: Concave-linear to linear-linear

Elevation range: 900 to 1,300 feet

Mean annual precipitation: 26 to 40 inches

Mean annual air temperature: 58 to 64 degrees F

Frost-free days: 200 to 220

Thornthwaite PE index: 44 to 64

Taxonomic class: Fine-loamy, mixed, superactive, thermic Aquic Hapludalfs

Associated Soils

• Bocox soils which have sandy textures more than 20 inches thick; in the slightly

lower areas

• Derby soils which are on dunes

• Dougherty and Konawa soils which are in the slightly higher positions

• Navina soils which have a mollic epipedon; in the slightly higher positions

Typical Pedon

Bathel loamy fine sand, 0 to 1 percent slopes (fig. 17); Logan County, Oklahoma; in

cropland, 4.0 miles west and 0.60 mile north of Crescent, 1,800 feet east and 2,000

feet south of the northwest corner of sec. 7, T. 17 N., R. 4 W. (Colors are for dry soil

unless otherwise indicated.)

Ap—0 to 8 inches; grayish brown (10YR 5/2) loamy fine sand, very dark grayish brown

(10YR 3/2) moist; weak very fine granular structure; soft, very friable; many very

fine and few fine roots; few fine pores; common strong brown (7.5YR 5/6)

rhizospheres; moderately acid; clear smooth boundary. (0 to 12 inches thick)

A—8 to 12 inches; grayish brown (10YR 5/2) loamy fine sand, very dark grayish brown

(10YR 3/2) moist; weak medium subangular blocky structure parting to moderate

medium granular; soft, very friable; many very fine and few fine roots; few fine

pores; common strong brown (7.5YR 5/6) rhizospheres; slightly acid; clear smooth

boundary. (8 to 12 inches thick)

E—12 to 18 inches; light brownish gray (10YR 6/2) loamy fine sand, dark grayish
492 Soil Survey

brown (10YR 4/2) moist; moderate medium and coarse prismatic structure parting

to moderate medium subangular blocky; soft, very friable; many very fine roots;

few fine pores; common medium faint very dark grayish brown (10YR 3/2)

redoximorphic depletions; common strong brown (7.5YR 5/6) rhizospheres;

neutral; clear wavy boundary. (3 to 12 inches thick)

Bt—18 to 22 inches; brown (10YR 5/3) sandy clay loam, brown (10YR 4/3) moist;

strong medium and coarse prismatic structure parting to strong medium blocky;

very hard, very firm; common discontinuous clay films on faces of peds; many very

fine roots; common fine pores; common medium faint dark grayish brown (10YR

4/2, moist) and common medium prominent strong brown (7.5YR 4/6, moist)

Figure 17.—Profile of Bathel loamy fine sand, 0 to 1 percent

slopes. Multiply the scale on the left by 10 for centimeters.
Logan County, Oklahoma 493

redoximorphic depletions and concentrations; common strong brown (7.5YR 5/6)

rhizospheres; slightly alkaline; clear wavy boundary. (5 to 17 inches thick)

Btg1—22 to 34 inches; gray (10YR 5/1) sandy clay, very dark gray (10YR 3/1) moist;

moderate medium and coarse prismatic structure parting to moderate medium

blocky; very hard, very firm; common continuous distinct clay films on faces of

peds; many very fine roots; few fine pores; common fine distinct dark yellowish

brown (10YR 4/4, moist) and common fine prominent yellowish brown (10YR 5/6,

moist) redoximorphic concentrations and depletions; slightly alkaline; clear

irregular boundary. (10 to 22 inches thick)

Btg2—34 to 45 inches; gray (10YR 5/1) [very dark gray (10YR 3/1) moist], light gray

(10YR 6/1) [gray (10YR 5/1) moist], and brownish yellow (10YR 6/6) [yellowish

brown (10YR 5/6) moist] sandy clay loam; this material is a mixture of

redoximorphic concentrations and depletions; moderate medium and coarse

prismatic structure parting to moderate medium subangular blocky; very hard,

firm; common continuous distinct clay films on faces of peds; few very fine roots;

few fine pores; neutral; clear irregular boundary. (7 to 16 inches thick)

BCtg—45 to 53 inches; grayish brown (10YR 5/2) sandy loam, dark grayish brown

(10YR 4/2) moist; moderate medium and coarse prismatic structure parting to

weak medium and coarse subangular blocky; hard, friable; few discontinuous faint

clay bridging of sands; few very fine roots; few fine pores; common coarse

prominent light yellowish brown (10YR 6/4, moist), common coarse distinct dark

yellowish brown (10YR 4/4, moist), and common fine distinct brown (7.5YR 4/2,

moist) redoximorphic concentrations and depletions; neutral; gradual wavy

boundary. (0 to 25 inches thick)

BCg—53 to 66 inches; light brown (7.5YR 6/3) [brown (7.5YR 5/3) moist], reddish

yellow (7.5YR 6/6) [strong brown (7.5YR 5/6) moist], and light gray (10YR 7/2)

[light brownish gray (10YR 6/2) moist] sandy loam; this material is a mixture of

redoximorphic concentrations and depletions; weak coarse subangular blocky

structure; slightly hard, very friable; few very fine roots; few fine pores; neutral;

gradual wavy boundary. (0 to 29 inches thick)

Btb—66 to 86 inches; pink (7.5YR 7/3) sandy loam, light brown (7.5YR 6/3) moist;

moderate coarse prismatic structure parting to moderate medium subangular

blocky; hard, friable; common discontinuous clay films on faces of peds; few very

fine roots; few fine pores; many coarse prominent strong brown (7.5YR 4/6, moist)

redoximorphic concentrations; slightly alkaline.

Range in Characteristics

Thickness of the solum: More than 50 inches

Depth to carbonates: More than 60 inches

Depth to redoximorphic depletions and concentrations: 12 to 28 inches

Ap or A horizon:

Color—hue of 7.5YR or 10YR, value of 4 to 6, and chroma of 2 to 4

Texture—loamy sand, loamy fine sand, or fine sandy loam

Reaction—very strongly acid to neutral

Clay content—2 to 18 percent

E horizon:

Color—hue of 7.5YR or 10YR, value of 5 or 6, and chroma of 3 or 4

Texture—loamy fine sand or fine sandy loam

Reaction—strongly acid to neutral

Clay content—2 to 18 percent

Redoximorphic features—brown concentrations

Bt horizon:

Color—hue of 7.5YR or 10YR, value of 4 to 6, and chroma of 3 to 6
494 Soil Survey

Texture—sandy clay loam

Reaction—neutral to moderately alkaline

Clay content—20 to 35 percent

Redoximorphic features—brown or gray concentrations and depletions

Btg1 horizon:

Color—hue of 7.5YR to 2.5Y, value of 4 or 5, and chroma of 3 or 4

Texture—sandy clay loam or sandy clay

Reaction—slightly alkaline or moderately alkaline

Clay content—20 to 45 percent

Redoximorphic features—brown or gray concentrations and depletions

Btg2 or Btg3 horizon (if it occurs):

Color—hue of 10YR to 2.5Y, value of 4 to 7, and chroma of 0 to 2

Texture of Btg2 horizon—sandy clay loam

Texture of Btg3 horizon—fine sandy loam or sandy clay loam

Reaction—slightly alkaline or moderately alkaline

Clay content—18 to 35 percent

Redoximorphic features—brown or gray concentrations and depletions

BCg and BCtg horizons:

Color—hue of 7.5YR to 2.5Y, value of 5 to 7, and chroma of 1 or 2

Texture—fine sandy loam, sandy loam, or loamy fine sand

Reaction—slightly alkaline or moderately alkaline

Clay content—2 to 18 percent

Redoximorphic features—brown or gray concentrations and depletions

Btb ́ horizon (if it occurs):

Color—hue of 2.5YR to 10YR, value of 5 to 8, and chroma of 1 to 3

Texture—sandy clay loam

Reaction—slightly alkaline or moderately alkaline

Clay content—20 to 35 percent

Redoximorphic features—brown concentrations

Bethany Series

Major land resource area: Central Rolling Red Prairies (80A)

Depth class: Very deep

Drainage class: Well drained

Parent material and geologic age: Alluvium or loess of Pleistocene age over shale of

Permian age

Physiographic region: Interior Lowlands

Physiographic province: Central Lowland

Physiographic sub-province: Osage Plain

Landscape: Upland

Landform: Terrace

Landform position: Tread

Slope range: 0 to 5 percent

Slope shape: Linear-linear

Elevation range: 950 to 1,250 feet

Mean annual precipitation: 26 to 38 inches

Mean annual air temperature: 57 to 64 degrees F

Frost-free days: 190 to 220

Thornthwaite PE index: 44 to 64

Taxonomic class: Fine, mixed, superactive, thermic Pachic Paleustolls
Logan County, Oklahoma 495

Associated Soils

• Norge soils which have a mollic epipedon less than 20 inches thick and have less

than 35 percent clay in the control section; on landscapes similar to those of the

Bethany soils

• Pond Creek soils which have less than 35 percent clay in the control section; on

landscapes similar to those of the Bethany soils

• Kirkland soils which have an abrupt textural change from the A horizon to the Bt

horizon and have COLE value of 0.07 or more; on landscapes similar to those of the

Bethany soils

• Renfrow soils which have a mollic epipedon less than 20 inches thick and have

COLE value of 0.07 or more; on landscapes similar to those of the Bethany soils

• Vanoss soils which have a mollic epipedon less than 20 inches thick and have less

than 35 percent clay in the control section; on landscapes similar to those of the

Bethany soils

• Tabler soils which have COLE value of 0.07 or more, redoximorphic accumulations

and depletions in the Bt horizon, and smectitic mineralogy; on the same landscape

as the Bethany soils but in the slightly lower positions

Typical Pedon

Bethany silt loam; Oklahoma County, Oklahoma; in a cultivated area, about 1 mile east

of Wheatland, 1,000 feet north and 200 feet east of the southwest corner of sec. 28,

T. 11 N., R. 4 W. (Colors are for dry soil unless otherwise stated.)

Ap—0 to 6 inches; dark grayish brown (10YR 4/2) silt loam, very dark grayish brown

(10YR 3/2) moist; weak fine granular structure; slightly hard, friable; many fine

roots; slightly acid; clear smooth boundary. (0 to 10 inches thick)

A—6 to 14 inches; dark grayish brown (10YR 4/2) silt loam, very dark brown (10YR

2/2) moist; moderate medium granular structure; slightly hard, friable; many fine

roots; slightly acid; gradual smooth boundary. (6 to 20 inches thick)

BA—14 to 18 inches; dark grayish brown (10YR 4/2) silty clay loam, very dark grayish

brown (10YR 3/2) moist; moderate fine subangular blocky structure; hard, firm;

many fine roots; neutral; clear smooth boundary. (3 to 10 inches thick)

Bt1—18 to 36 inches; brown (10YR 4/3) silty clay, dark brown (10YR 3/3) moist; strong

fine and medium blocky structure; very hard, very firm; clay films on faces of peds;

common fine roots; slightly alkaline; gradual smooth boundary. (10 to 25 inches

thick)

Bt2—36 to 56 inches; brown (10YR 5/3) silty clay, brown (10YR 4/3) moist; moderate

medium and coarse blocky structure; very hard, very firm; clay films on faces of

peds; few fine roots; common fine iron-manganese concretions; few fine

concretions of calcium carbonate; moderately alkaline; gradual smooth boundary.

(10 to 30 inches thick)

Bt3—56 to 72 inches; brown (7.5YR 5/4) silty clay, brown (7.5YR 4/4) moist; moderate

medium and coarse blocky structure; very hard, very firm; patchy clay films on

faces of peds; few fine roots; common fine and coarse distinct yellowish red (5YR

5/6) and reddish brown (5YR 5/4) redoximorphic features; common fine ironmanganese concretions; few soft accumulations of secondary lime; few fine

concretions of calcium carbonate; calcareous; moderately alkaline; gradual smooth

boundary. (10 to 20 inches thick)

Bt4—72 to 80 inches; reddish brown (5YR 5/4) silty clay loam, reddish brown (5YR

4/4) moist; weak medium blocky structure; very hard, very firm; patchy clay films

on faces of peds; common coarse distinct brown (7.5YR 5/4) and red (2.5YR 5/6)

redoximorphic features; few fine concretions of calcium carbonate; calcareous;

moderately alkaline.
496 Soil Survey

Range in Characteristics

Thickness of the mollic epipedon: More than 20 inches

Thickness of the solum: More than 60 inches

Depth to bedrock: More than 80 inches

Depth to carbonates: 28 to 40 inches

A horizon:

Color—hue of 7.5YR to 2.5Y, value of 3 to 5, and chroma of 2 or 3

Texture—silt loam or silty clay loam

Reaction—strongly acid to slightly alkaline

Electrical conductivity of the saturation extract—0 to 1 mmho/cm

Roots—many, fine

Clay content—15 to 35 percent

Thickness—8 to 20 inches

BA horizon:

Color—hue of 7.5YR to 2.5Y, value of 4 or 5, and chroma of 2 or 3

Texture—silty clay loam or clay loam

Reaction—slightly acid to slightly alkaline

Electrical conductivity of the saturation extract—0 to 1 mmho/cm

Roots—many, fine

Clay content—27 to 35 percent

Thickness—3 to 10 inches

Bt1 horizon:

Color—hue of 7.5YR to 2.5Y, value of 4 or 5, and chroma of 2 or 3

Texture—clay, silty clay, clay loam, or silty clay loam

Reaction—neutral to moderately alkaline

Electrical conductivity of the saturation extract—0 to 1 mmho/cm

Roots—common, fine

Clay content—35 to 50 percent

Thickness—10 to 25 inches

Bt2 horizon:

Color—hue of 7.5YR to 2.5Y, value of 4 to 6, and chroma of 2 to 6

Texture—clay, silty clay, clay loam, or silty clay loam

Reaction—neutral to moderately alkaline

Electrical conductivity of the saturation extract—0 to 4 mmhos/cm

Sodium adsorption ratio—0 to 8

Roots—few, fine

Redoximorphic features—few or common accumulations in shades of brown

Clay content—35 to 50 percent

Thickness—10 to 30 inches

Bt3 horizon:

Color—hue of 5YR to 2.5Y, value of 4 to 6, and chroma of 2 to 6

Texture—clay, silty clay, clay loam, or silty clay loam

Reaction—neutral to moderately alkaline

Electrical conductivity of the saturation extract—0 to 4 mmhos/cm

Clay content—35 to 50 percent

Redoximorphic features—accumulations and depletions in shades of yellow, red,

gray, or brown

Sodium adsorption ratio—0 to 8

Roots—many, fine

Thickness—10 to 20 inches
Logan County, Oklahoma 497

Bt4 horizon:

Color—hue of 5YR to 2.5Y, value of 4 to 6, and chroma of 2 to 6

Texture—clay, silty clay, clay loam, or silty clay loam

Reaction—neutral to moderately alkaline

Clay content—35 to 50 percent

Redoximorphic features—accumulations and depletions in shades of yellow, red,

gray, or brown

Bocox Series

Major land resource area: Central Rolling Red Prairies (80A)

Depth class: Very deep

Drainage class: Poorly drained

Parent material and geologic age: Loamy alluvium or aeolian sediments of Pleistocene

age

Physiographic region: Interior Lowlands

Physiographic province: Central Lowland

Physiographic sub-province: Osage Plain

Primary landscape: Upland

Secondary landscape: Terrace

Landform: Dunefield

Landform position: Interdunal depression

Slope range: 0 to 3 percent

Slope shape: Concave-concave

Elevation range: 900 to 1,300 feet

Mean annual precipitation: 26 to 40 inches

Mean annual air temperature: 58 to 64 degrees F

Frost-free days: 200 to 220

Thornthwaite PE index: 44 to 64

Taxonomic class: Loamy, mixed, active, thermic Aquic Arenic Hapludalfs

Associated Soils

• Bathel soils which have sandy surface layers less than 20 inches thick; in positions

similar to those of the Bocox soils

• Navina soils which do not have wetness features within a depth of 30 inches and

have a mollic epipedon; in the slightly higher areas

• Dougherty and Konawa soils which do not have wetness features within a depth of

30 inches; in the slightly higher areas

• Derby soils which do not have wetness features within a depth of 30 inches; on

dunes

Typical Pedon

Bocox loamy fine sand, 0 to 1 percent slopes; Logan County, Oklahoma; in rangeland,

3.35 miles west and 0.75 mile north of Crescent, 500 feet west and 1,900 feet south of

the northeast corner of sec. 7, T. 17 N., R. 4 W. (Colors are for dry soil unless

otherwise indicated.)

A—0 to 11 inches; yellowish brown (10YR 5/4) loamy fine sand, dark yellowish brown

(10YR 4/4) moist; few medium faint very dark grayish brown (10YR 3/2)

redoximorphic depletions; moderate medium granular structure; soft, very friable;

common very fine and few fine and medium roots; few fine pores; common brown

(7.5YR 5/4) rhizospheres; neutral; clear smooth boundary. (4 to 12 inches thick)

E1—11 to 20 inches; light yellowish brown (10YR 6/4) loamy fine sand, yellowish

brown (10YR 5/4) moist; weak medium granular structure; soft, very friable;
498 Soil Survey

common very fine and few fine and medium roots; few fine pores; common strong

brown (7.5YR 4/6) rhizospheres; water table at a depth of 16 inches; slightly

alkaline; gradual smooth boundary. (5 to 25 inches thick)

E2—20 to 33 inches; yellowish brown (10YR 5/6) loamy fine sand, dark yellowish

brown (10YR 4/6) moist; weak medium granular structure; soft, very friable;

common very fine and few fine and medium roots; few fine pores; slightly alkaline;

clear smooth boundary. (0 to 17 inches thick)

Bt1—33 to 52 inches; reddish yellow (7.5YR 6/6) sandy clay loam, strong brown

(7.5YR 5/6) moist; moderate medium subangular blocky structure; very hard, very

firm; few fine black concretions; few very fine roots; few fine pores; common

medium and coarse distinct strong brown (7.5YR 5/8, moist) masses of iron

accumulation; few medium prominent very dark grayish brown (10YR 3/2, moist)

masses of iron depletion; slightly alkaline; gradual smooth boundary. (6 to 34

inches thick)

Bt2—52 to 65 inches; fine sandy loam that is variegated in reddish yellow (7.5YR 6/6)

[strong brown (7.5YR 5/6) moist], pink (7.5YR 7/4) [light brown (7.5YR 6/4) moist],

pink (7.5YR 7/3) [light brown (7.5YR 6/3) moist], pinkish gray (5YR 7/2) [pinkish

gray (5YR 6/2) moist], and white (5YR 8/1) [light gray (5YR 7/1) moist]; gray areas

are masses of iron depletion; moderate medium subangular blocky structure; hard,

firm; few very fine roots; few fine pores; slightly alkaline; gradual smooth boundary.

(4 to 20 inches thick)

Bt3—65 to 80 inches; fine sandy loam that is variegated in reddish yellow (7.5YR 6/6)

[strong brown (7.5YR 5/6) moist], pink (7.5YR 7/4) [light brown (7.5YR 6/4) moist],

pink (7.5YR 7/3) [light brown (7.5YR 6/3) moist], pinkish gray (5YR 7/2) [pinkish

gray (5YR 6/2) moist], and white (5YR 8/1) [light gray (5YR 7/1) moist]; gray areas

are masses of iron depletion; moderate medium subangular blocky structure; hard,

firm; few very fine roots; few fine pores; slightly alkaline.

Range in Characteristics

Thickness of the solum: More than 60 inches

Combined thickness of the A and E horizons: 20 to 40 inches

Water table: 12 inches above the surface and extending to a depth of 18 inches

A horizon:

Color—hue of 7.5YR or 10YR, value of 5 or 6, and chroma of 1 to 4

Texture—loamy fine sand or fine sandy loam

Reaction—slightly acid to slightly alkaline

Clay content—2 to 18 percent

Redoximorphic features—brown concentrations

E horizon:

Color—hue of 7.5YR or 10YR, value of 5 or 6, and chroma of 3 to 6

Texture—loamy fine sand

Reaction—neutral or slightly alkaline

Clay content—2 to 10 percent

Redoximorphic features—brown concentrations

Bt1 horizon:

Color—hue of 5YR to 10YR, value of 5 or 6, and chroma of 4 to 6

Texture—fine sandy loam or sandy clay loam

Reaction—neutral or slightly alkaline

Clay content—18 to 35 percent

Redoximorphic features—in shades of brown or gray

Bt2 horizon:

Color—hue of 5YR to 10YR, value of 5 to 8, and chroma of 1 to 6
Logan County, Oklahoma 499

Texture—fine sandy loam or sandy clay loam

Reaction—neutral or slightly alkaline

Clay content—15 to 35 percent

Redoximorphic features—variegated and in shades of gray, yellow, or brown

Bt3 horizon:

Color—hue of 5YR to 10YR, value of 5 to 8, and chroma of 1 to 6

Texture—fine sandy loam or sandy clay loam

Reaction—neutral or slightly alkaline

Clay content—15 to 35 percent

Redoximorphic features—variegated and in shades of gray, yellow, or brown

Canadian Series

Major land resource area: Central Rolling Red Prairies (80A)

Depth class: Very deep

Drainage class: Well drained

Parent material and geologic age: Loamy alluvium of Pleistocene age

Physiographic region: Interior Lowlands

Physiographic province: Central Lowland

Physiographic sub-province: Osage Plain

Landscape: Valley

Landform: High flood plain

Slope range: 0 to 3 percent

Slope shape: Linear-linear

Elevation range: 700 to 1,500 feet

Mean annual precipitation: 26 to 40 inches

Mean annual air temperature: 58 to 64 degrees F

Frost-free days: 200 to 230

Thornthwaite PE index: 44 to 64

Taxonomic class: Coarse-loamy, mixed, superactive, thermic Udic Haplustolls

Associated Soils

• Lela and McLain soils which have more than 35 percent clay in their control sections;

adjacent to the Canadian soils on the same terrace

• Dale soils which have a mollic epipedon more than 20 inches thick and have more

than 18 percent clay in the control sections; adjacent to the Canadian soils on the

same terrace

• Port soils which have a mollic epipedon more than 20 inches thick and have more

than 18 percent clay in the control section; in the lower positions on flood plains

• Crisfield soils which have hue of 5YR or redder in the control section; adjacent to

Canadian soils on the same terrace

• Miller soils which have more than 35 percent clay in the control section; in the lower

positions on flood plains

• Pulaski soils which do not have a mollic epipedon; in the lower positions on flood

plains

• Yahola soils which do not have a mollic epipedon; in the lower positions on flood

plains

• Lincoln soils which do not have a mollic epipedon and have a sandy control section;

in the lower positions on flood plains

• Reinach soils which have a mollic epipedon more than 20 inches thick and have less

than 18 percent clay and less than 15 percent material coarser than very fine sand

in the control section; adjacent to the Canadian soils on the same terrace
500 Soil Survey

Typical Pedon

Canadian fine sandy loamy; Oklahoma County, Oklahoma; in a cultivated area, about

1

/2 mile north of the intersection of Reno Avenue and Council Road in Oklahoma City,

2,600 feet north and 830 feet east of the southwest corner of sec. 32, T. 12 N., R. 4 W.

(Colors are for dry soil unless otherwise stated.)

A1—0 to 8 inches; dark grayish brown (10YR 4/2, crushed) fine sandy loam, very dark

grayish brown (10YR 3/2, crushed) moist; weak medium platy structure parting to

weak fine granular; slightly hard, very friable; many very fine and fine roots; many

very fine pores; noneffervescent; neutral; clear smooth boundary. (0 to 10 inches

thick)

A2—8 to 18 inches; dark grayish brown (10YR 4/2, crushed) fine sandy loam, very

dark grayish brown (10YR 3/2, crushed) moist; weak medium granular structure;

slightly hard, very friable; many very fine and fine roots; many very fine pores;

noneffervescent; slightly alkaline; clear smooth boundary. (8 to 20 inches thick)

Bw—18 to 28 inches; brown (7.5YR 5/2, crushed) fine sandy loam, brown (7.5YR 4/2,

crushed) moist; weak medium subangular blocky structure parting to weak

medium granular; slightly hard, very friable; common very fine and fine roots; many

very fine pores; noneffervescent; slightly alkaline; gradual wavy boundary. (10 to

35 inches thick)

C1—28 to 43 inches; strong brown (7.5YR 5/6, crushed) fine sandy loam, strong

brown (7.5YR 4/6, crushed) moist; massive; slightly hard, very friable; common

very fine and few fine roots; noneffervescent; slightly alkaline; gradual wavy

boundary. (12 to 20 inches thick)

C2—43 to 52 inches; yellowish red (5YR 5/6, crushed) fine sandy loam, yellowish red

(5YR 4/6, crushed) moist; massive; slightly hard, very friable; common very fine

and few fine roots; noneffervescent; slightly alkaline; gradual smooth boundary.

(0 to 20 inches thick)

C3—52 to 84 inches; reddish yellow (5YR 6/6, crushed) loamy fine sand, yellowish red

(5YR 5/6, crushed) moist; single grained; soft, very friable; few very fine and few

fine roots; stratified with thin layers of red (2.5YR 4/6, moist) material;

noneffervescent; slightly alkaline.

Range in Characteristics

Thickness of the mollic epipedon: 7 to 20 inches

Thickness of the solum: 20 to 50 inches

Depth to bedrock: More than 80 inches

A or Ap horizon:

Color—hue of 7.5YR or 10YR, value of 3 to 5, and chroma of 2 or 3

Texture—fine sandy loam, sandy loam, very fine sandy loam, or loam

Reaction—very strongly acid to slightly alkaline

Clay content—5 to 18 percent

Thickness—combined thickness of the A horizon ranges from 7 to 20 inches

Bw horizon:

Color—hue of 7.5YR or 10YR, value of 3 to 6, and chroma of 2 to 6

Texture—fine sandy loam, sandy loam, or loam

Reaction—slightly acid to moderately alkaline

Clay content—10 to 18 percent

Thickness—10 to 35 inches

C1 horizon:

Color—hue of 7.5YR or 10YR, value of 5 to 7, and chroma of 3 to 6

Texture—typically fine sandy loam, sandy loam, or loam; range includes loamy fine

sand and fine sand in some pedons below a depth of 40 inches
Logan County, Oklahoma 501

Reaction—slightly acid to moderately alkaline

Clay content—5 to 18 percent

Thickness—12 to 20 inches

C2 and C3 horizons:

Color—hue of 5YR to 10YR, value of 5 to 7, and chroma of 3 to 6

Texture—typically fine sandy loam, sandy loam, loam, or loamy fine sand; range

includes fine sand in some pedons below a depth of 40 inches

Reaction—slightly acid to moderately alkaline

Clay content—5 to 18 percent

Coyle Series

Major land resource area: Central Rolling Red Prairies (80A)

Depth class: Moderately deep

Drainage class: Well drained

Parent material and geologic age: Material weathered from sandstone of Permian age

Physiographic region: Interior Lowlands

Physiographic province: Central Lowland

Physiographic sub-province: Osage Plain

Landscape: Upland

Landform: Hills

Landform position: Summit and backslope

Slope range: 1 to 12 percent

Slope shape: Convex-convex

Elevation range: 700 to 1,500 feet

Mean annual precipitation: 26 to 40 inches

Mean annual air temperature: 58 to 64 degrees F

Frost-free days: 190 to 230

Thornthwaite PE index: 44 to 64

Taxonomic class: Fine-loamy, siliceous, active, thermic Udic Argiustolls

Associated Soils

• Chickasha and Zaneis soils which have a solum more than 40 inches thick;

commonly on side slopes below the Coyle soils

• Grainola and Renfrow soils which have a fine control section; commonly on convex

side slopes below the Coyle soils

• Lucien soils which have a solum less than 20 inches thick over sandstone and do

not have Bt horizons; on landscapes similar to those of the Coyle soils

Typical Pedon

Coyle loam (fig. 18); Payne County, Oklahoma; in rangeland, about 6 miles south and

3 miles west of Stillwater, 70 feet north and 460 feet west of the southeast corner of

sec. 17, T. 18 N., R. 2 E. (Colors are for dry soil unless otherwise stated.)

A—0 to 11 inches; dark reddish gray (5YR 4/2) loam, dark reddish brown (5YR 3/2)

moist; strong fine granular structure; slightly hard, friable; many fine roots; slightly

alkaline; clear smooth boundary. (6 to 14 inches thick)

BA—11 to 14 inches; reddish brown (5YR 4/3) loam, dark reddish brown (5YR 3/3)

moist; moderate medium granular structure; slightly hard, friable; many fine roots;

many fine pores; many wormcasts; slightly alkaline; clear smooth boundary. (0 to 8

inches thick)

Bt1—14 to 31 inches; red (2.5YR 5/6) clay loam, red (2.5YR 4/6) moist; moderate
502 Soil Survey

medium subangular blocky structure; hard, firm; common fine roots; thin nearly

continuous clay films on faces of peds; neutral; gradual smooth boundary. (7 to 19

inches thick)

Bt2—31 to 39 inches; light red (2.5YR 6/8) sandy clay loam, red (2.5YR 5/8) moist;

weak coarse subangular blocky structure; hard, firm; common fine roots; few

coarse fragments of sandstone less than 76 mm in diameter; patchy clay films on

faces of peds; neutral; abrupt smooth boundary. (0 to 16 inches thick)

Cr—39 to 42 inches; red (2.5YR 5/6) sandstone; can be augered when moist.

Figure 18.—Profile of Coyle loam. Multiply scale on the left

by 10 for centimeters.
Logan County, Oklahoma 503

Range in Characteristics

Thickness of the mollic epipedon: 7 to 20 inches

Thickness of the solum: 20 to 40 inches

Depth to bedrock: 20 to 40 inches

A or Ap horizon:

Color—hue of 5YR to 10YR, value of 4 or 5, and chroma of 2 or 3

Texture—fine sandy loam or loam

Reaction—moderately acid to slightly alkaline

Roots—many, fine

Clay content—10 to 26 percent

Thickness—6 to 14 inches

BA horizon:

Color—hue of 5YR or 7.5YR, value of 4 or 5, and chroma of 2 to 4

Texture—loam or fine sandy loam

Reaction—moderately acid to slightly alkaline

Roots—many, fine

Pores—many, fine

Clay content—18 to 26 percent

Thickness—0 to 8 inches

Bt1 horizon:

Color—hue of 2.5YR to 7.5YR, value of 4 to 6, and chroma of 3 to 6

Texture—clay loam, loam, or sandy clay loam

Reaction—moderately acid to slightly alkaline

Roots—common, fine

Clay content—20 to 35 percent

Redoximorphic features—red or brown concentrations

Content and size of coarse fragments—0 to 10 percent, by volume; less than 76

mm in diameter

Thickness—7 to 19 inches

Bt2 horizon:

Color—hue of 2.5YR to 7.5YR, value of 4 to 6, and chroma of 4 to 8

Texture—clay loam, fine sandy loam, loam, or sandy clay loam or their channery,

flaggy, or gravelly counterparts

Reaction—moderately acid to slightly alkaline

Roots—common, fine

Clay content—18 to 35 percent

Redoximorphic features—yellow, red, or brown concentrations

Content and size of coarse fragments—0 to 35 percent, by volume, sandstone

fragments (about 0 to 30 percent are less than 76 mm in diameter and 0 to 30

percent are more than 76 mm in diameter)

Thickness—0 to 16 inches

Bt3 horizon (if it occurs):

Color—hue of 2.5YR to 7.5YR, value of 4 to 6, and chroma of 4 to 8

Texture—clay loam, fine sandy loam, loam, or sandy clay loam or their channery,

flaggy, or gravelly counterparts

Reaction—moderately acid to slightly alkaline

Roots—common, fine

Clay content—18 to 35 percent

Redoximorphic features—yellow, red, or brown concentrations

Content and size of coarse fragments—0 to 35 percent, by volume, sandstone
504 Soil Survey

fragments (about 0 to 30 percent are less than 76 mm in diameter and 0 to 30

percent are more than 76 mm in diameter)

Thickness—0 to 10 inches

BC horizon (if it occurs):

Color—hue of 2.5YR to 7.5YR, value of 4 to 6, and chroma of 4 to 8

Texture—clay loam, loam, fine sandy loam, or very fine sandy loam or their

gravelly, channery, or flaggy counterparts

Reaction—moderately acid to slightly alkaline

Clay content—18 to 35 percent

Redoximorphic features—yellow, red, or brown concentrations

Content and size of coarse fragments—0 to 35 percent, by volume, sandstone

fragments (about 0 to 30 percent are less than 76 mm in diameter and 0 to 30

percent are more than 76 mm in diameter)

Thickness—0 to 16 inches

Cr horizon:

Color—hue of 2.5YR to 10YR, value of 5 or 6, and chroma of 4 to 8

Texture—weathered sandstone bedrock

Darsil Series

Major land resource area: Cross Timbers (84A)

Depth class: Shallow

Drainage class: Excessively drained

Parent material and geologic age: Weakly cemented sandstone of Permian age

Physiographic region: Interior Lowlands

Physiographic province: Central Lowland

Physiographic sub-province: Osage Plain

Landscape: Upland

Landform: Hills

Landform position: Shoulder

Slope range: 1 to 45 percent

Slope shape: Convex-linear or convex-convex

Elevation range: 750 to 1,200 feet

Mean annual precipitation: 30 to 38 inches

Mean annual air temperature: 58 to 62 degrees F

Frost-free days: 200 to 230

Thornthwaite PE index: 48 to 64

Taxonomic class: Thermic, shallow and coated Ustic Quartzipsamments

Associated Soils

• Darnell soils which have a loamy textural control section; on the same landscape as

the Darsil soils

• Harrah soils which have a fine-loamy control section, have an argillic horizon, and

have a solum more than 60 inches thick; on footslopes

• Littleaxe soils which have a fine-loamy control section, an argillic horizon, and a

solum that is 40 to 60 inches thick

• Newalla soils which have a fine control section, an argillic horizon, and a solum that

is 35 to 60 inches thick

• Stephenville soils which have a fine-loamy control section, an argillic horizon, and a

solum that is 20 to 40 inches thick

Typical Pedon

Darsil loamy fine sand (when described the soil was moist throughout); Cleveland
Logan County, Oklahoma 505

County, Oklahoma; on a 4 percent convex west-facing slope, in a post oak-blackjack

oak forest with an understory of native grasses, about 6 miles east of the intersection

of U.S. Highway 77 and Alemeda Street in Norman, 700 feet east and 50 feet south of

the northwest corner of sec. 32, T. 9 N., R 1 W. (Colors are for dry soil unless

otherwise stated.)

A—0 to 5 inches; brown (7.5YR 5/2) loamy fine sand, dark brown (7.5YR 3/2) moist;

weak fine granular structure; soft, very friable; slightly acid; clear smooth boundary.

(3 to 9 inches thick)

EC—5 to 17 inches; pink (7.5YR 7/4) fine sand, brown (7.5YR 5/4) moist; weak fine

granular structure; soft, very friable; 2 percent, by volume, coarse fragments 2 to

76 mm in diameter; neutral; clear wavy boundary. (6 to 15 inches thick)

Cr—17 to 23 inches; red (2.5YR 5/8) weakly cemented fine-grained sandstone, red

(2.5YR 4/8) moist; moderately acid.

Range in Characteristics

Thickness of the solum: 10 to 20 inches

Depth to bedrock: 10 to 20 inches

Reaction: Strongly acid to slightly alkaline throughout the profile

A horizon:

Color—hue of 5YR to 10YR, value of 4 to 6, and chroma of 2 to 4

Texture—loamy fine sand

Reaction—strongly acid to slightly alkaline

Clay content—1 to 10 percent

Thickness—3 to 9 inches

EC horizon:

Color—hue of 2.5YR to 10YR, value of 6 or 7, and chroma of 3 to 6

Texture—loamy fine sand or fine sand

Reaction—strongly acid to slightly alkaline

Clay content—1 to 10 percent

Content and size of coarse fragments—0 to 20 percent, by volume, sandstone

fragments 2 to 76 mm in diameter

Thickness—6 to 15 inches

Cr horizon:

Color—hue of 2.5YR or 5YR, value of 3 to 6, and chroma of 4 to 8

Texture—weathered, weakly cemented fine-grained sandstone

Derby Series

Major land resource area: Northern Cross Timbers (84A) and Central Rolling Red

Prairies (80A)

Depth class: Very deep

Drainage class: Somewhat excessively drained

Parent material and geologic age: Sandy eolian sediments of Pleistocene age

Physiographic region: Interior Lowlands

Physiographic province: Central Lowland

Physiographic sub-province: Osage Plain

Landscape: Upland

Primary landform: Dunefield

Secondary landform: Dune

Slope range: 0 to 35 percent

Slope shape: Convex-convex

Elevation range: 800 to 1,300 feet
506 Soil Survey

Mean annual precipitation: 26 to 40 inches

Mean annual air temperature: 58 to 63 degrees F

Frost-free days: 200 to 230

Thornthwaite PE index: 44 to 64

Taxonomic class: Mixed, thermic Lamellic Ustipsamments

Associated Soils

• Amber soils which have a coarse-silty control section; on flood plains

• Gaddy soils which are stratified and have an irregular decrease in organic matter

content with increasing depth; on flood plains

• Goodnight soils which do not have lamellae

• Minco soils which have a mollic epipedon and a coarse-silty control section; on

landscapes similar to those of the Derby soils

• Paluxy soils which have a coarse-loamy control section; on landscapes similar to

those of the Derby soils

• Yahola soils which have a coarse-loamy control section and an irregular decrease in

organic matter content with increasing depth; on flood plains

Typical Pedon

Derby fine sandy loam; Payne County, Oklahoma; in a savannah, about 3 miles west

and 3 miles south of Yale, 2,200 feet south and 200 feet west of the northeast corner

of sec. 3, T. 18 N., R. 5 E. (Colors are for dry soil unless otherwise stated.)

A1—0 to 9 inches; brown (10YR 5/3) fine sandy loam, dark brown (10YR 3/3) moist;

weak fine granular structure; soft, very friable; neutral; clear smooth boundary.

(4 to 24 inches thick)

A2—9 to 20 inches; light brown (7.5YR 6/4) loamy fine sand, brown (7.5YR 4/4) moist;

single grained; loose; moderately acid; clear smooth boundary. (0 to 42 inches

thick)

E1—20 to 54 inches; pink (7.5YR 7/4) fine sand, brown (7.5YR 5/4) moist; single

grained; loose; slightly acid; diffuse smooth boundary. (16 to 48 inches thick)

E2 and Bt1—54 to 72 inches; reddish yellow (7.5YR 6/6) fine sand, strong brown

(7.5YR 5/6) moist (E2 part); single grained in E2 part; loose in E2 part; lamellae of

yellowish red (5YR 5/6) fine sand, yellowish red (5YR 4/6) moist (Bt1 part);

massive in Bt1 part; soft, very friable in Bt1 part; lamellae are 2 to 15 cm apart and

2 to 10 mm thick and are discontinuous horizontally; neutral in E2 part and slightly

acid in Bt1 part; diffuse smooth boundary. (18 to 36 inches thick)

E3 and Bt2—72 to 120 inches; pink (7.5YR 7/4) fine sand, light brown (7.5YR 6/4)

moist (E3 part); single grained in E3 part; loose in E3 part; lamellae of yellowish

red (5YR 5/6) loamy fine sand, yellowish red (5YR 4/6) moist (Bt2 part); massive

in Bt2 part; soft, very friable in Bt2 part; lamellae are 5 to 15 cm apart and 2 to 12

mm thick and are continuous horizontally; neutral.

Range in Characteristics

Thickness of the solum: More than 60 inches

Depth to bedrock: More than 80 inches

Depth to lamellae: 44 to 60 inches

Other features: Where the surface layer is fine sandy loam, the total thickness of the

Ap and/or A1 horizon is not more than 25 cm or the depth of the Ap horizon,

whichever is deeper

Ap or A1 horizon:

Color—hue of 5YR to 10YR, value of 4 to 6, and chroma of 2 to 4

Texture—fine sandy loam or loamy fine sand

Reaction—moderately acid to slightly alkaline
Logan County, Oklahoma 507

Clay content—2 to 10 percent

Thickness—4 to 24 inches

A2 horizon:

Color—hue of 5YR to 10YR, value of 5 to 7, and chroma of 3 or 4

Texture—fine sand or loamy fine sand

Reaction—moderately acid to slightly alkaline

Clay content—1 to 10 percent

Thickness—0 to 42 inches

E1 horizon:

Color—hue of 5YR to 10YR, value of 6 or 7, and chroma of 4 to 8

Texture—fine sand or loamy fine sand

Reaction—moderately acid to slightly alkaline

Clay content—1 to 10 percent

Thickness—16 to 48 inches

E2 and E3 parts of the E2 and Bt1 and E3 and Bt2 horizons:

Color—hue of 5YR to 10YR, value of 6 to 8, and chroma of 4 to 8

Texture—loamy fine sand or fine sand

Reaction—moderately acid to moderately alkaline

Clay content—1 to 10 percent

Bt1 and Bt2 parts of the E2 and Bt1 and E3 and Bt2 horizons:

Color—hue of 2.5YR or 5YR, value of 4 to 7, and chroma of 4 to 8

Texture—typically loamy fine sand; range includes fine sand and fine sandy loam

Reaction—moderately acid to moderately alkaline

Clay content—1 to 10 percent

Thickness—lamellae range from 1 to 25 mm in thickness, but those more than 10

mm thick do not reach a cumulative total of 15 cm within a depth of 60 inches

Other features—lamellae are typically 2 to 20 cm apart

C horizon (if it occurs):

Color—hue of 7.5YR, value of 6 or 7, and chroma of 6 to 8

Texture—loamy fine sand or fine sand

Reaction—moderately acid to moderately alkaline

Clay content—1 to 10 percent

Dougherty Series

Major land resource area: Cross Timbers (84A)

Depth class: Very deep

Drainage class: Well drained

Parent material and geologic age: Sandy and loamy sediments on terraces of

Pleistocene age

Physiographic region: Interior Lowlands

Physiographic province: Central Lowland

Physiographic sub-province: Osage Plain

Landscape: Upland terrace

Primary landform: Dunefield

Secondary landform: Dune and interdune

Slope range: 0 to 20 percent

Slope shape: Convex-convex or linear-convex

Elevation range: 800 to 1,300 feet

Mean annual precipitation: 30 to 38 inches

Mean annual air temperature: 58 to 62 degrees F
508 Soil Survey

Frost-free days: 200 to 230

Thornthwaite PE index: 48 to 64

Taxonomic class: Loamy, mixed, active, thermic Arenic Haplustalfs

Associated Soils

• Larton and Stidham soils which are on the higher terraces

• Bastrop soils which have an argillic horizon that does not decrease by more than 20

percent from the maximum within 60 inches from the surface; on the higher terraces

• Eufaula soils which are sandy; in the slightly higher positions

• Konawa and Teller soils which are in the slightly lower positions and on the more

stable landscapes

• Derby and Slaughterville soils which are on recent eolian sediments

Typical Pedon

Dougherty loamy fine sand; Payne County, Oklahoma; in a cultivated area, about 9

miles south and 8 miles west of Stillwater on State Highway 33, about 2,375 feet west

and 50 feet south of the northeast corner of sec. 3, T. 17 N, R. 1 E. (Colors are for dry

soil unless otherwise stated.)

Ap—0 to 6 inches; grayish brown (10YR 5/2) loamy fine sand, dark grayish brown

(10YR 4/2) moist; weak fine granular structure; soft, very friable; slightly acid; clear

smooth boundary. (0 to 9 inches thick)

E—6 to 26 inches; very pale brown (10YR 7/3) loamy fine sand, brown (10YR 5/3)

moist; single grained; soft, very friable; moderately acid; clear smooth boundary.

(13 to 36 inches thick)

Bt—26 to 42 inches; yellowish red (5YR 5/6) sandy clay loam, yellowish red (5YR 4/6)

moist; moderate coarse prismatic structure parting to weak medium subangular

blocky; very hard, friable; clay films on faces of peds and bridging sand grains;

moderately acid; diffuse smooth boundary. (10 to 25 inches thick)

BC—42 to 54 inches; yellowish red (5YR 5/6) fine sandy loam, yellowish red (5YR 4/6)

moist; weak coarse prismatic structure; hard, friable; moderately acid; diffuse

smooth boundary. (10 to 30 inches thick)

C—54 to 70 inches; yellowish red (5YR 5/8) loamy fine sand, yellowish red (5YR 4/6)

moist; massive; slightly hard, friable; moderately acid.

Range in Characteristics

Thickness of the solum: 45 to more than 72 inches

Depth to bedrock: More than 60 inches

Thickness of the A and E horizons: 20 to 40 inches

Ap or A horizon:

Color—hue of 7.5YR or 10YR, value of 4 to 7, and chroma of 2 to 4

Texture—loamy fine sand or fine sand

Reaction—slightly acid to strongly acid

Clay content—2 to 10 percent

Thickness—0 to 9 inches

E horizon:

Color—hue of 7.5YR or 10YR, value of 5 to 8, and chroma of 2 to 4

Texture—loamy fine sand or sand

Reaction—slightly acid to strongly acid

Clay content—2 to 10 percent

Thickness—13 to 36 inches

Bt horizon:

Color—hue of 2.5YR to 7.5YR, value of 4 to 7, and chroma of 4 to 8
Logan County, Oklahoma 509

Texture—fine sandy loam or sandy clay loam

Reaction—slightly acid to strongly acid

Clay content—18 to 35 percent

Thickness—10 to 25 inches

BC horizon:

Color—hue of 2.5YR to 7.5YR, value of 4 to 7, and chroma of 4 to 8

Texture—fine sandy loam, sandy clay loam, or loamy fine sand

Reaction—slightly acid to strongly acid

Clay content—12 to 25 percent

Thickness—10 to 30 inches

C horizon:

Color—hue of 2.5YR to 7.5YR, value of 4 to 7, and chroma of 4 to 8

Texture—fine sandy loam or loamy fine sand

Reaction—neutral to strongly acid

Clay content—2 to 15 percent

Easpur Series

Major land resource area: Central Rolling Red Prairies (80A)

Depth class: Very deep

Drainage class: Well drained

Parent material and geologic age: Loamy alluvium of Recent age

Physiographic region: Interior Lowlands

Physiographic province: Central Lowland

Physiographic sub-province: Osage Plain

Landscape: Valley

Landform: Low flood plain

Slope range: 0 to 1 percent

Slope shape: Linear-linear

Elevation range: 700 to 1,500 feet

Mean annual precipitation: 26 to 38 inches

Mean annual air temperature: 58 to 63 degrees F

Frost-free days: 200 to 230

Thornthwaite PE index: 44 to 64

Taxonomic class: Fine-loamy, mixed, superactive, thermic Fluventic Haplustolls

Associated Soils

• Port soils which have a mollic epipedon more than 20 inches thick and have a

fine-silty control section; on landscapes similar to those of the Easpur soils

• Dale soils which have a mollic epipedon more than 20 inches thick, have a fine-silty

control section, and are rarely flooded; on the slightly higher landscapes

• Pulaski soils which have a coarse-loamy control section and do not have a mollic

epipedon; typically closer to the stream channel than the Easpur soils

Typical Pedon

Easpur loam; Payne County, Oklahoma; in a cultivated area, about 1/2 mile west of

Stillwater, Oklahoma, 2,000 feet east and 1,300 feet north of the southwest corner of

sec. 16, T. 19 N., R. 2 E. (Colors are for dry soil unless otherwise stated.)

Ap—0 to 11 inches; reddish brown (5YR 4/3) loam, dark reddish brown (5YR 3/3)

moist; weak fine granular structure; slightly hard, friable; many fine roots; slightly

acid; clear smooth boundary. (8 to 14 inches thick)

Bw1—11 to 19 inches; reddish brown (5YR 5/4) fine sandy loam, reddish brown (5YR
510 Soil Survey

4/4) moist; weak fine granular structure; soft, very friable; many fine roots; neutral;

clear smooth boundary. (6 to 24 inches thick)

Bw2—19 to 29 inches; reddish brown (5YR 4/4) clay loam, dark reddish brown (5YR

3/4) moist; moderate fine granular structure; hard, firm; few fine roots; neutral;

clear smooth boundary. (0 to 24 inches thick)

C—29 to 41 inches; stratified reddish brown (5YR 5/4) loam, yellowish red (5YR 5/6)

fine sandy loam, and reddish brown (5YR 4/3) clay loam; massive; slightly hard,

friable; few fine roots; strata are 1 to 4 inches thick; slightly alkaline; clear smooth

boundary. (0 to 33 inches thick)

2Ab—41 to 62 inches; dark reddish gray (5YR 4/2) silty clay loam, dark reddish brown

(5YR 3/2) moist; moderate fine granular structure; hard, firm; slightly alkaline; clear

smooth boundary. (10 to 21 inches thick)

2Bwb—62 to 72 inches; reddish brown (5YR 4/4) silty clay loam, dark reddish brown

(5YR 3/4) moist; weak medium subangular blocky structure; hard, firm; slightly

alkaline.

Range in Characteristics

Thickness of the mollic epipedon: Less than 20 inches

Thickness of the solum: 20 to more than 60 inches

Depth to buried horizons: 20 to more than 60 inches

Depth to carbonates: More than 50 inches in some pedons

Depth to bedrock: More than 80 inches

Ap or A horizon:

Color—hue of 5YR or 7.5YR, value of 4 or 5, and chroma of 2 or 3

Texture—loam or silt loam

Reaction—moderately acid to moderately alkaline

Roots—many, fine

Clay content—12 to 26 percent

Thickness—8 to 14 inches

Bw horizon:

Color—hue of 2.5YR to 7.5YR, value of 4 to 6, and chroma of 3 to 6

Texture—loam, clay loam, fine sandy loam, or very fine sandy loam

Reaction—slightly acid to moderately alkaline

Roots—few to many, fine

Clay content—18 to 35 percent

Thickness—6 to 48 inches

C horizon:

Color—hue of 2.5YR to 10YR, value of 4 to 7, and chroma of 3 to 6

Texture—stratified fine sandy loam to clay loam

Reaction—slightly acid to moderately alkaline

Roots—few, fine

Clay content—18 to 35 percent

Thickness—0 to 33 inches

2Ab horizon:

Color—hue of 5YR or 7.5YR, value of 3 to 5, and chroma of 2 or 3

Texture—silt loam, silty clay loam, clay loam, or loam

Reaction—slightly acid to moderately alkaline

Clay content—18 to 35 percent

Thickness—10 to 21 inches

2Bwb horizon:

Color—hue of 5YR to 10YR, value of 4 or 5, and chroma of 2 to 4

Texture—silt loam, silty clay loam, clay loam, or loam
Logan County, Oklahoma 511

Reaction—slightly acid to moderately alkaline

Clay content—18 to 35 percent

Gaddy Series

Major land resource area: Central Rolling Red Prairies (80A)

Depth class: Very deep

Drainage class: Somewhat excessively drained

Parent material and geologic age: Recent sandy alluvium

Physiographic region: Interior Lowlands

Physiographic province: Central Lowland

Physiographic sub-province: Osage Plain

Landscape: Valley

Landform: Low flood plain

Slope range: 0 to 3 percent

Slope shape: Linear-linear

Elevation range: 700 to 1,500 feet

Mean annual precipitation: 26 to 38 inches

Mean annual air temperature: 57 to 63 degrees F

Frost-free days: 200 to 230

Thornthwaite PE index: 44 to 64

Taxonomic class: Sandy, mixed, thermic Udic Ustifluvents

Associated Soils

• Gracemore soils which are in the lower areas nearest the stream channels

• Yahola soils which have textures finer than loamy fine sand in the textural control

section; commonly in the higher areas

Typical Pedon

Gaddy loamy fine sand; Pottawatomie County, Oklahoma; about 2 miles east and

1 mile south of Shawnee, about 2,100 feet west and 200 feet south of the northeast

corner of sec. 28, T. 10 N., R. 4 E. (Colors are for dry soil unless otherwise indicated.)

Ap—0 to 8 inches; brown (7.5YR 5/4) loamy fine sand, brown (7.5YR 4/4) moist; weak

fine granular structure; slightly hard, very friable; calcareous; moderately alkaline;

clear smooth boundary.

C1—8 to 20 inches; light brown (7.5YR 6/4) loamy fine sand, brown (7.5YR 5/4) moist;

single grained; soft; common thin strata of brown (7.5YR 4/4) fine sandy loam;

calcareous; moderately alkaline; gradual smooth boundary.

C2—20 to 60 inches; very pale brown (10YR 7/3) fine sand, pale brown (10YR 6/3)

moist; single grained; loose; common thin strata of brown (10YR 5/3) loamy fine

sand and fine sandy loam; calcareous; moderately alkaline.

Range in Characteristics

Depth to effervescence: 0 to 10 inches

A horizon:

Color—hue of 5YR, 7.5YR, or 10YR, value of 4 to 6 (3 to 5 moist), and chroma of

2 to 6; where the moist value and chroma are less than 3.5, the horizon is less

than 10 inches thick or the organic matter content is less than 1 percent

Texture—fine sand to silt loam in the upper 10 inches; loamy fine sand or fine sand

below a depth of 10 inches

Reaction—moderately alkaline or slightly alkaline; horizon is calcareous
512 Soil Survey

C horizon:

Color—hue of 5YR, 7.5YR, or 10YR, value of 6 to 8 (5 to 7 moist), and chroma of

3 to 6

Texture—loamy fine sand or fine sand that is stratified with thin strata of fine sandy

loam to clay loam

Reaction—moderately alkaline; horizon is calcareous

Goodnight Series

Major land resource area: Central Rolling Red Prairies (80A)

Depth class: Very deep

Drainage class: Excessively drained

Parent material and geologic age: Sandy eolian sediments of Recent age

Physiographic region: Interior Lowlands

Physiographic province: Central Lowland

Physiographic sub-province: Osage Plain

Primary landscape: Valley

Secondary landscape: Terrace

Primary landform: Dunefield

Secondary landform: Dune

Slope range: 0 to 45 percent

Slope shape: Convex-convex

Elevation range: 800 to 1,500 feet

Mean annual precipitation: 26 to 40 inches

Mean annual air temperature: 58 to 64 degrees F

Frost-free days: 200 to 230

Thornthwaite PE index: 44 to 64

Taxonomic class: Mixed, thermic Typic Ustipsamments

Associated Soils

• Derby soils which are at the higher elevations

• Gaddy soils which are on the lower flood plains adjacent to the Goodnight soils

• Amber and Reinach soils which are coarse-silty; on flood plains

• Gracemore soils which have thin strata of finer textures in the control section; on

flood plains

• Miller soils which have a fine control section; on flood plains

• Yahola soils which have a coarse-loamy control section; on flood plains

Typical Pedon

Goodnight loamy fine sand; Payne County, Oklahoma; in rangeland, 5 miles north on

Highway OK-18, about 1 mile east of Cushing, 600 feet south and 200 feet east of the

northwest corner of sec. 11, T. 18 N., R. 5 E. (Colors are for dry soil unless otherwise

indicated.)

A—0 to 5 inches; brown (7.5YR 5/3) loamy fine sand, brown (7.5YR 4/3) moist; weak

fine granular structure; soft, very friable; slightly acid; clear smooth boundary. (4 to

14 inches thick)

AC1—5 to 16 inches; light brown (7.5YR 6/4) fine sand, brown (7.5YR 5/4) moist;

single grained; loose; slightly acid; gradual wavy boundary. (0 to 28 inches thick)

AC2—16 to 40 inches; reddish yellow (7.5YR 7/6) fine sand, reddish yellow (7.5YR

6/6) moist; single grained; loose; neutral; clear smooth boundary. (0 to 36 inches

thick)

C—40 to 80 inches; reddish yellow (7.5YR 7/6) fine sand, reddish yellow (7.5YR 6/6)
Logan County, Oklahoma 513

moist; single grained; loose; bedding strata and some cross-bedding; calcareous;

moderately alkaline.

Range in Characteristics

Thickness of the solum: 10 to 60 inches

Depth to bedrock: More than 80 inches

Depth to carbonates: 0 to 40 inches

A horizon:

Color—hue of 5YR to 10YR, value of 4 to 6, and chroma of 2 to 4

Texture—loamy fine sand or fine sand

Reaction—slightly acid to moderately alkaline

Clay content—2 to 12 percent

AC1 horizon:

Color—hue of 5YR or 10YR, value of 5 to 7, and chroma of 3 to 6

Texture—loamy fine sand or fine sand

Reaction—slightly acid to moderately alkaline

Clay content—2 to 12 percent

AC2 horizon:

Color—hue of 5YR or 7.5YR, value of 5 to 8, and chroma of 4 to 8

Texture—loamy fine sand or fine sand

Reaction—slightly acid to moderately alkaline

Clay content—2 to 12 percent

C horizon:

Color—hue of 5YR or 7.5YR, value of 5 to 8, and chroma of 4 to 8

Texture—loamy fine sand or fine sand

Reaction—slightly acid to moderately alkaline

Clay content—2 to 12 percent

Gracemore Series

Major land resource area: Central Rolling Red Plains (78C) and Central Rolling Red

Prairies (80A)

Depth class: Very deep

Drainage class: Somewhat poorly drained

Parent material and geologic age: Calcareous sandy alluvium of Recent age

Physiographic region: Interior Lowlands

Physiographic province: Central Lowland

Physiographic sub-province: Osage Plain

Landscape: Valley

Landform: Low flood plain

Slope range: 0 to 2 percent

Slope shape: Linear-linear/concave

Elevation range: 700 to 2,300 feet

Mean annual precipitation: 22 to 38 inches

Mean annual air temperature: 57 to 64 degrees F

Frost-free days: 185 to 230

Thornthwaite PE index: 32 to 64

Taxonomic class: Sandy, mixed, thermic Oxyaquic Udifluvents

Associated Soils

• Daycreek soils which do not have an irregular decrease in organic matter as depth

increases; in areas adjacent to but not on flood plains
514 Soil Survey

• Ezell soils which have a water table within a depth of 12 inches and pond water for

long periods of time

• Gaddy soils which do not have a water table within a depth of 40 inches most of the

year and are dry for longer periods of time; in the slightly higher positions

• Gracemont soils which have horizons of fine sandy loam below a depth of 10 inches;

in landscape positions similar to those of the Gracemore soils

• Heman soils which have strongly contrasting particle-size classes in the control

section; in the slightly higher landscape positions

• Goodnight and Jester soils which have eolian sediments in dune areas and do not

have a water table

• Lincoln soils which do not have a water table within a depth of 40 inches most of the

year and are dry for longer periods of time; in the slightly higher landscape positions

• Westola and Yahola soils which do not have a water table within a depth of 40 inches

most of the year, are dry for longer periods of time, and have a horizon of fine sandy

loam below a depth of 10 inches; in the slightly higher landscape positions

• Port soils which have a mollic epipedon, have a fine silty control section, and do not

have a water table within a depth of 40 inches

Typical Pedon

Gracemore loamy fine sand; Canadian County, Oklahoma; about 12 miles west and 6

miles south of El Reno, 600 feet north and 300 feet west of the southeast corner of

sec. 5, T. 11 N., R. 9 W. (Colors are for moist soil unless otherwise stated.)

A—0 to 12 inches; brown (7.5YR 4/4) loamy fine sand, brown (7.5YR 5/4) dry; weak

fine granular structure; soft, very friable; many fine roots; calcareous; moderately

alkaline; clear smooth boundary.

C—12 to 72 inches; brown (7.5YR 5/4) fine sand, pink (7.5YR 6/4) dry; single grained;

loose, very friable; very thin to 1-inch-thick strata of darker fine sandy loam and

clay loam that decrease in number as depth increases; bedding planes are

evident; calcareous; moderately alkaline.

Range in Characteristics

Content and size of coarse fragments: 0 to 10 percent, by volume, rounded gravel

throughout the profile; as much as 3 inches in diameter

Depth to carbonates: 0 to 10 inches

Depth to a fluctuating water table: 6 to 42 inches

A horizon:

Color—hue of 5YR to 10YR, value of 3 to 7 (moist) and 4 to 8 (dry), and chroma of

1 to 6; where moist value and chroma are 3 or less, the horizon is less than 10

inches thick

Texture—fine sand, loamy fine sand, fine sandy loam, loam, clay loam, or very fine

sandy loam in the upper 10 inches; loamy fine sand or fine sand below a depth

of 10 inches

Reaction—moderately alkaline or slightly alkaline; horizon is calcareous

Electrical conductivity of saturation extract—0 to 16 mmhos/cm

C horizon:

Color—hue of 5YR to 10YR, value of 4 to 7 (moist) and 5 to 8 (dry), and chroma of

2 to 6; finer strata are darker and contain more organic carbon than the mass of

the horizon

Texture—loamy fine sand or fine sand that is stratified with thin strata of finer

material ranging from fine sandy loam to clay loam

Reaction—moderately alkaline; horizon is calcareous

Electrical conductivity of saturation extract—0 to 16 mmhos/cm
Logan County, Oklahoma 515

Grainola Series

Major land resource area: Central Rolling Red Prairies (80A)

Depth class: Moderately deep

Drainage class: Well drained

Parent material and geologic age: Material weathered from shale of Recent age

Physiographic region: Interior Lowlands

Physiographic province: Central Lowland

Physiographic sub-province: Osage Plain

Landscape: Upland

Landform: Hills

Landform position: Shoulder and backslope

Slope range: 1 to 25 percent

Slope shape: Linear-convex

Elevation range: 800 to 1,500 feet

Mean annual precipitation: 26 to 40 inches

Mean annual air temperature: 58 to 64 degrees F

Frost-free days: 200 to 220

Thornthwaite PE index: 44 to 64

Taxonomic class: Fine, mixed, active, thermic Udertic Haplustalfs

Associated Soils

• Foraker soils which have smectitic mineralogy; commonly on broad ridges that are

slightly higher than the Grainola soils

• Aydelotte soils which have a solum more than 60 inches thick; commonly on broad

ridges that are slightly higher than the Grainola soils

• Apperson, Corbin, and Renfrow soils which have a mollic epipedon; commonly on

broad ridges that are slightly higher than the Grainola soils

• Kiti, Lucien, and Shidler soils which are less than 20 inches thick, do not have an

argillic horizon, and have a mollic epipedon; on ridgetops

• Masham soils which are less than 20 inches thick; typically in the slightly lower

landscape positions

• Tamford soils which do not have an argillic horizon; on footslopes

• Piedmont and Renthin soils which have a mollic epipedon; typically in the slightly

higher, smoother areas

Typical Pedon

Grainola silty clay loam; Osage County, Oklahoma; in rangeland, about 4 miles west

and 3 miles north of Shidler, 1,060 feet east and 280 feet south of the northwest

corner of sec. 14, T. 27 N., R. 5 E. (Colors are for dry soil unless otherwise stated.)

Ak—0 to 6 inches; reddish brown (5YR 4/3) very gravelly silty clay loam, dark reddish

brown (5YR 3/3) moist; strong medium granular structure; hard, friable; about 25

percent, by volume, flat limestone fragments 2 to 76 mm in diameter and about 10

percent flat limestone fragments more than 76 mm in diameter; about 5 percent

calcium carbonate concretions 2 to 76 mm in diameter; calcareous; moderately

alkaline; clear smooth boundary. (4 to 10 inches thick)

BAk—6 to 13 inches; reddish brown (5YR 5/3) silty clay loam, reddish brown (5YR 4/3)

moist; moderate medium granular structure; hard, firm; about 7 percent, by

volume, flat limestone fragments 2 to 76 mm in diameter; about 5 percent calcium

carbonate concretions 2 to 76 mm in diameter; calcareous; moderately alkaline;

gradual smooth boundary. (0 to 10 inches thick)

Btk1—13 to 28 inches; reddish brown (2.5YR 4/4) silty clay, dark reddish brown

(2.5YR 3/4) moist; weak medium blocky structure; very hard, very firm; nearly

continuous clay films or pressure faces on faces of peds; about 5 percent, by
516 Soil Survey

volume, sandstone fragments 2 to 76 mm in diameter; common fine light olive gray

spots of weathered shale; few calcium carbonate concretions; few masses of

calcium carbonate; calcareous; moderately alkaline; clear wavy boundary. (8 to 16

inches thick)

Btk2—28 to 36 inches; reddish brown (2.5YR 4/4) very gravelly silty clay, dark reddish

brown (2.5YR 3/4) moist; weak medium blocky structure; very hard, very firm;

patchy clay films on faces of peds; about 40 percent, by volume, dark reddish

brown and olive gray shale fragments 2 to 76 mm in diameter; few calcium

carbonate concretions; common masses of calcium carbonate; calcareous;

moderately alkaline; clear wavy boundary. (0 to 16 inches thick)

Cr—36 to 42 inches; weak red (2.5YR 5/2) shale bedrock; laminated; calcium

carbonate films on faces of some fragments; calcareous.

Range in Characteristics

Thickness of the ochric epipedon: 4 to 10 inches

Thickness of the solum: 20 to 40 inches

Depth to bedrock: 20 to 40 inches

A horizon:

Color—hue of 2.5YR to 7.5YR, value of 4 or 5, and chroma of 2 to 4

Texture—silt loam, loam, silty clay loam, or clay loam or their gravelly, cobbly,

bouldery, or stony counterparts

Reaction—neutral to moderately alkaline

Clay content—15 to 35 percent

Content and size of coarse fragments of hard limestone or sandstone—0 to 55

percent, by volume (0 to 35 percent are fragments less than 76 mm in diameter,

0 to 20 percent are fragments 76 to 250 mm in diameter, and 0 to 20 percent

are fragments 250 to 375 mm in diameter)

BA horizon:

Color—hue of 2.5YR to 7.5YR, value of 4 or 5, and chroma of 2 to 4

Texture—silty clay loam, clay loam, clay, or silty clay or their gravelly, cobbly, stony,

or bouldery counterparts

Reaction—moderately alkaline; horizon is calcareous

Clay content—35 to 60 percent

Content and size of coarse fragments of hard limestone or sandstone—0 to 55

percent, by volume (0 to 35 percent are fragments less than 76 mm in diameter,

0 to 20 percent are fragments 76 to 250 mm in diameter, and 0 to 20 percent

are fragments 250 to 375 mm in diameter)

Btk1 horizon:

Color—hue of 2.5YR or 5YR, value of 4 or 5, and chroma of 3 to 8

Texture—silty clay loam, clay loam, clay, or silty clay

Reaction—moderately alkaline; horizon is calcareous

Clay content—35 to 60 percent

Content and size of coarse fragments—0 to 15 percent, by volume, soft shale

fragments less than 76 mm in diameter

Other features—coarse fragments slake in water within 15 hours

Btk2 horizon:

Color—hue of 2.5YR to 7.5YR, value of 4 or 5, and chroma of 2 to 8

Texture—clay loam, silty clay loam, clay, or silty clay or their gravelly or very

gravelly counterparts

Reaction—moderately alkaline; horizon is calcareous

Clay content—35 to 60 percent
Logan County, Oklahoma 517

Content and size of coarse fragments—5 to 45 percent, by volume, soft shale

fragments less than 76 mm in diameter

Carbonates—0 to 10 percent, by volume, masses of calcium carbonate

Other features—coarse fragments slake in water within 15 hours

BC horizon (if it occurs):

Color—hue of 10R to 5YR, value of 4 to 6, and chroma of 2 to 8

Texture—clay loam, silty clay loam, clay, or silty clay or their gravelly, very gravelly,

or extremely gravelly counterparts

Reaction—moderately alkaline; horizon is calcareous

Clay content—35 to 60 percent

Content and size of coarse fragments—5 to 70 percent, by volume, soft shale

fragments less than 76 mm in diameter

Carbonates—0 to 10 percent, by volume, masses of calcium carbonate

Other features—coarse fragments slake in water within 15 hours

Cr horizon:

Color—hue of 10R to 5YR, value of 3 to 5, and chroma of 2 to 6; horizon is

streaked or spotted in grayish, brownish, yellowish, or olive shades in some

pedons

Texture—weathered shale that has thin strata of sandstone and limestone

Excavation difficulty—high or very high

Grant Series

Major land resource area: Central Rolling Red Prairies (80A)

Depth class: Deep

Drainage class: Well drained

Parent material and geologic age: Material weathered from silty sandstone or silty

shale of Permian age

Physiographic region: Interior Lowlands

Physiographic province: Central Lowland

Physiographic sub-province: Osage Plain

Landscape: Upland

Landform: Dissected terrace

Landform position: Summit, shoulder, and backslope

Slope range: 0 to 20 percent

Slope shape: Linear-linear/convex

Elevation range: 700 to 1,500 feet

Mean annual precipitation: 26 to 38 inches

Mean annual air temperature: 57 to 63 degrees F

Frost-free days: 190 to 220

Thornthwaite PE index: 44 to 64

Taxonomic class: Fine-silty, mixed, superactive, thermic Udic Argiustolls

Associated Soils

• Bethany soils which have more than 35 percent clay in the textural control section

• Lucien, Nash, and Nashville soils which do not have an argillic horizon and have

bedrock within a depth of 40 inches; on side slopes

• Norge soils in the lower positions on side slopes

• Pond Creek soils in the lower positions on broad flats

Typical Pedon

Grant silt loam; Garfield County, Oklahoma; about 2 miles north and 6 1/2 miles west of
518 Soil Survey

Hillsdale, 500 feet south and 100 feet east of the northwest corner of sec. 6, T. 24 S.,

R. 8 W. (Colors are for dry soil unless otherwise stated.)

Ap—0 to 7 inches; brown (7.5YR 5/2) silt loam, dark brown (7.5YR 3/2) moist; weak

fine granular structure; slightly hard, very friable; many fine roots; slightly acid;

clear smooth boundary.

A—7 to 12 inches; brown (7.5YR 4/2) silt loam, dark brown (7.5YR 3/2) moist;

moderate fine granular structure; slightly hard, very friable; many fine roots; slightly

acid; gradual smooth boundary.

AB—12 to 16 inches; reddish brown (5YR 4/3) silt loam, dark reddish brown (5YR 3/3)

moist; moderate medium granular structure; slightly hard, very friable; many fine

roots; neutral; gradual smooth boundary.

Bt—16 to 32 inches; reddish brown (5YR 5/4) silty clay loam, reddish brown (5YR 4/4)

moist; moderate medium subangular blocky structure; hard, friable; common fine

roots; clay films on faces of peds; neutral; gradual smooth boundary.

BC—32 to 47 inches; yellowish red (5YR 5/6) silt loam, yellowish red (5YR 4/6) moist;

weak medium subangular blocky structure; hard, friable; few fine roots; slightly

alkaline; gradual smooth boundary.

C—47 to 59 inches; yellowish red (5YR 5/6) silt loam, yellowish red (5YR 4/6) moist;

massive; hard, friable; few fine roots; common medium fragments of sandstone;

calcareous; moderately alkaline; clear smooth boundary.

Cr—59 to 72 inches; red (2.5YR 5/6) weakly consolidated sandstone, red (2.5YR 4/6)

moist; calcareous in seams.

Range in Characteristics

Thickness of the solum: 40 to 60 inches

Depth to bedrock: 40 to 60 inches

Depth to carbonates: 30 to 60 inches

A horizon:

Color—hue of 5YR to 10YR, value of 4 or 5 (dry) and 3 (moist), and chroma of 2

or 3

Texture—silt loam, very fine sandy loam, or loam

Reaction—slightly acid to slightly alkaline

AB or BA horizon (if it occurs):

Color—hue of 2.5YR to 7.5YR, value of 4 or 5 (dry) and 3 or 4 (moist), and

chroma of 2 to 4

Texture—silt loam, very fine sandy loam, or loam

Reaction—slightly acid to slightly alkaline

Bt horizon:

Color—hue of 2.5YR to 7.5YR, value of 4 or 5 (dry) and 3 or 4 (moist), and

chroma of 2 to 8

Texture—silt loam, loam, very fine sandy loam, silty clay loam, or clay loam

Reaction—slightly acid to moderately alkaline; the lower part of horizon is

calcareous in some pedons

Clay content—18 to 35 percent

BC horizon:

Color—hue of 2.5YR or 5YR, value of 4 to 6 (dry) and 3 to 5 (moist), and chroma

of 4 to 8

Texture—silt loam, loam, very fine sandy loam, silty clay loam, or clay loam

Reaction—neutral to moderately alkaline; horizon is calcareous in some pedons
Logan County, Oklahoma 519

C horizon:

Color—hue of 2.5YR or 5YR, value of 4 to 7 (dry) and 3 to 6 (moist), and chroma

of 4 to 8

Texture—silt loam, loam, or very fine sandy loam

Reaction—slightly alkaline or moderately alkaline; horizon is noncalcareous in

some pedons

Content and size of coarse fragments—0 to 20 percent, by volume, sandstone

fragments 5 mm to 1 inch in diameter

Cr horizon:

Color—reddish

Texture—soft bedrock of silty sandstone or silty shale

Reaction—slightly alkaline or moderately alkaline; horizon may or may not be

calcareous

Hardness—material is mainly nonparalithic with an excavation difficulty of low or

moderate; some layers may be paralithic with a high excavation difficulty

Moist bulk density—1.85 to more than 2.0 gm/cm3

Harrah Series

Major land resource area: Cross Timbers (84A)

Depth class: Very deep

Drainage class: Well drained

Parent material and geologic age: Sandy and loamy colluvial material weathered from

sandstone of Permian age

Physiographic region: Interior Lowlands

Physiographic province: Central Lowland

Physiographic sub-province: Osage Plain

Landscape: Upland

Landform: Hills

Landform position: Footslope

Slope range: 3 to 45 percent

Slope shape: Concave-linear

Elevation range: 1,000 to 1,300 feet

Mean annual precipitation: 30 to 38 inches

Mean annual air temperature: 58 to 62 degrees F

Frost-free days: 190 to 220

Thornthwaite PE index: 48 to 64

Taxonomic class: Fine-loamy, siliceous, active, thermic Ultic Paleustalfs

Associated Soils

• Darnell and Darsil soils which do not have an argillic horizon and are less than 20

inches thick over sandstone; mainly on ridge crests

• Pulaski soils which do not have an argillic horizon, have an irregular decrease in

organic carbon as depth increases, and have a coarse-loamy control section; on

flood plains

• Tribbey soils which do not have an argillic horizon, have an irregular decrease in

organic carbon as depth increases, have a coarse-loamy control section, and have a

water table within a depth of 40 inches most of the time; on flood plains

• Stephenville soils which have a solum less than 40 inches thick; in the slightly higher

areas

Typical Pedon

Harrah fine sandy loam; Cleveland County, Oklahoma; on a 6 percent convex
520 Soil Survey

east-facing slope, in a severely eroded field that has been reseeded to native grasses,

about 10 miles east and 2.6 miles north of the intersection of U.S. Highway 77 and

Robinson Street in Norman, about 2,350 feet south and 900 feet east of the northwest

corner of sec. 12, T. 9 N., R. 1 W. (Colors are for dry soil unless otherwise stated.)

Ap—0 to 9 inches; brown (7.5YR 5/2) fine sandy loam, brown (7.5YR 4/2) moist; weak

fine granular structure; soft, very friable; neutral; clear smooth boundary. (2 to 10

inches thick)

E—9 to 19 inches; light brown (7.5YR 6/4) loamy fine sand, brown (7.5YR 5/4) moist;

weak fine granular structure; soft, very friable; neutral; clear smooth boundary.

(0 to 20 inches thick)

Bt1—19 to 34 inches; red (2.5YR 5/6) sandy clay loam, red (2.5YR 4/6) moist; weak

fine blocky structure; hard, firm; thin nearly continuous clay films on faces of peds;

slightly acid; gradual wavy boundary. (10 to 25 inches thick)

Bt2—34 to 52 inches; red (2.5YR 5/8) sandy clay loam, red (2.5YR 4/8) moist;

moderate medium prismatic structure parting to moderate medium blocky; hard,

firm; thin nearly continuous clay films on faces of peds; about 5 percent, by

volume, uncoated sand grains on vertical faces of peds and in pores; moderately

acid; gradual wavy boundary. (12 to 45 inches thick)

Btb1—52 to 76 inches; red (2.5YR 4/6) sandy clay loam, dark red (2.5YR 3/6) moist;

moderate medium prismatic structure parting to moderate medium blocky; hard,

firm; thin continuous clay films on faces of peds; about 20 percent, by volume,

uncoated sand grains on vertical faces of peds and in pores; moderately acid;

gradual wavy boundary. (0 to 28 inches thick)

Btb2—76 to 86 inches; red (2.5YR 4/6) sandy clay loam, dark red (2.5YR 3/6) moist;

moderate medium blocky structure; hard, firm; thin continuous clay films on faces

of peds; few fine dark concretions; about 10 percent, by volume, uncoated sand

grains on vertical faces of peds and in pores; slightly acid.

Range in Characteristics

Thickness of the solum: More than 60 inches

Ap or A horizon:

Color—hue of 5YR or 10YR, value of 4 to 6, and chroma of 2 to 4

Texture—fine sandy loam or loamy fine sand

Reaction—very strongly acid to neutral

Clay content—5 to 18 percent

E horizon:

Color—hue of 2.5YR to 7.5YR, value of 5 to 7, and chroma of 4 to 6

Texture—fine sandy loam or loamy fine sand

Reaction—very strongly acid to neutral

Clay content—5 to 18 percent

Bt horizon:

Color—hue of 10R to 5YR, value of 4 to 6, and chroma of 4 to 8

Texture—sandy clay loam or fine sandy loam

Reaction—very strongly acid to neutral

Clay content—18 to 35 percent

Btb horizon:

Color—hue of 10R or 2.5YR, value of 4 to 6, and chroma of 4 to 8

Texture—fine sandy loam or sandy clay loam

Reaction—very strongly acid to neutral

Clay content—18 to 35 percent
Logan County, Oklahoma 521

Hawley Series

Major land resource area: Central Rolling Red Prairies (80A)

Depth class: Very deep

Drainage class: Well drained

Parent material and geologic age: Loamy alluvium of Pleistocene age

Physiographic region: Interior Lowlands

Physiographic province: Central Lowland

Physiographic sub-province: Osage Plain

Landscape: Valley

Landform: High flood plain

Slope range: 0 to 3 percent

Slope shape: Linear-linear

Elevation range: 750 to 1,300 feet

Mean annual precipitation: 30 to 40 inches

Mean annual air temperature: 58 to 63 degrees F

Frost-free days: 190 to 230

Thornthwaite PE index: 44 to 64

Taxonomic class: Coarse-loamy, mixed, active, thermic Fluventic Haplustepts

Associated Soils

• Canadian and Crisfield soils which have a mollic epipedon

• Dale soils which have a mollic epipedon and a fine-silty control section

• Reinach soils which have a mollic epipedon and a coarse-silty control section

• Lela and McLain soils which have a mollic epipedon and a fine control section

• Miller soils which have a mollic epipedon and a fine control section; on flood plains at

the lower elevations

• Port soils which have a mollic epipedon and a fine-silty control section; on flood

plains at the lower elevations

• Yahola soils which do not have a cambic horizon and are calcareous within a depth

of 10 inches; on flood plains at the lower elevations

• Gaddy soils which do not have a cambic horizon, are calcareous within a depth of

10 inches, and have a sandy control section; on flood plains at the lower elevations

• Pocasset soils which are in the lower landscape positions

Typical Pedon

Hawley fine sandy loam; Grant County, Oklahoma; in a cultivated area, 6 miles north

and 3 miles east of Nash, 1,900 feet west and 140 feet south of the northeast corner

of sec. 7, T. 26 N., R. 7 W. (Colors are for dry soil unless otherwise indicated.)

Ap—0 to 9 inches; brown (7.5YR 5/4) fine sandy loam, dark brown (7.5YR 3/4) moist;

weak fine granular structure; soft, very friable; moderately acid; clear smooth

boundary. (0 to 11 inches thick)

A—9 to 18 inches; brown (7.5YR 4/4) fine sandy loam, dark brown (7.5YR 3/4) moist;

weak coarse prismatic structure parting to weak fine granular; slightly hard, friable;

neutral; gradual smooth boundary. (7 to 18 inches thick)

Bw—18 to 34 inches; brown (7.5YR 5/4) fine sandy loam, brown (7.5YR 4/4) moist;

weak coarse prismatic structure; soft, very friable; slightly alkaline; gradual smooth

boundary. (7 to 40 inches thick)

C1—34 to 50 inches; brown (7.5YR 5/4) fine sandy loam, brown (7.5YR 4/4) moist;

massive; soft, very friable; strata 1

/4 inch to 4 inches thick of loamy fine sand and

very fine sandy loam; moderately alkaline; gradual smooth boundary. (11 to 32

inches thick)

C2—50 to 66 inches; brown (7.5YR 4/4) loam, dark brown (7.5YR 3/2) moist; massive;
522 Soil Survey

slightly hard, friable; strata 1

/4 inch to 4 inches thick of very fine sandy loam, silt

loam, and silty clay loam; few soft powdery masses and threads of calcium

carbonate; calcareous; moderately alkaline.

Range in Characteristics

Thickness of the solum: 20 to 50 inches

Content of organic matter: Less than 1 percent in the Ap or A horizon

Other features: Some pedons have buried horizons below a depth of 25 inches

Ap horizon:

Color—hue of 7.5YR or 10YR, value of 4 to 6, and chroma of 3 or 4

Texture—loam, fine sandy loam, or loamy fine sand

Reaction—moderately acid to slightly alkaline

Clay content—5 to 20 percent

A horizon:

Color—hue of 7.5YR or 10YR, value of 4 to 6, and chroma of 3 or 4

Texture—fine sandy loam or loam

Reaction—slightly acid to slightly alkaline

Clay content—5 to 20 percent

Bw horizon:

Color—hue of 5YR or 7.5YR, value of 4 to 6, and chroma of 3 to 6

Texture—fine sandy loam or loam

Reaction—slightly acid to moderately alkaline

Clay content—7 to 18 percent

C horizon:

Color—hue of 7.5YR or 10YR, value of 5 to 7, and chroma of 3 to 6

Texture—typically fine sandy loam, sandy loam, or loam; range includes loamy fine

sand or fine sand that is stratified with silt loam, silty clay loam, sandy clay

loam, and loamy very fine sand in some pedons below a depth of 40 inches

Reaction—slightly acid to moderately alkaline

Clay content—5 to 30 percent

Huska Series

Major land resource area: Central Rolling Red Prairies (80A)

Depth class: Deep

Drainage class: Moderately well drained

Parent material and geologic age: Interbedded shale and sandstone of Permian age

Physiographic region: Interior Lowlands

Physiographic province: Central Lowland

Physiographic sub-province: Osage Plain

Landscape: Upland

Landform: Hills

Landform position: Summit and backslope

Slope range: 1 to 5 percent

Slope shape: Linear-convex or convex-linear

Elevation range: 900 to 1,300 feet

Mean annual precipitation: 26 to 40 inches

Mean annual air temperature: 58 to 64 degrees F

Frost-free days: 200 to 230

Thornthwaite PE index: 44 to 64

Taxonomic class: Fine, mixed, superactive, thermic Mollic Natrustalfs
Logan County, Oklahoma 523

Associated Soils

• Chickasha and Zaneis soils which have fine-loamy control sections and do not have

natric horizons; on landscapes similar to those of the Huska soils

• Grainola and Renfrow soils which do not have a natric horizon; commonly on

landscapes below the Huska soils

• Lucien soils which do not have a natric horizon and have a solum less than 20

inches thick; on landscapes similar to those of the Huska soils

Typical Pedon

Huska silt loam; Payne County, Oklahoma; on a 1 percent slope in rangeland, on the

Oklahoma State University Golf Driving Range in Stillwater, 2,200 feet west and 500

feet south of the northeast corner of sec. 10, T. 19 N., R. 2 E. (Colors are for dry soil

unless otherwise stated.)

A—0 to 9 inches; brown (7.5YR 5/4) silt loam, dark brown (7.5YR 3/4) moist; massive;

hard, friable; slightly acid; abrupt smooth boundary. (4 to 9 inches thick)

Btn—9 to 18 inches; reddish brown (5YR 4/4) silty clay, dark reddish brown (5YR 3/4)

moist; moderate coarse columnar structure; extremely hard, very firm; thick nearly

continuous clay films on faces of peds; ped faces are dark reddish brown (5YR

3/2); few fine black concretions; exchangeable sodium percentage of 22; neutral;

clear smooth boundary. (7 to 11 inches thick)

Btnz1—18 to 25 inches; reddish brown (5YR 5/4) silty clay loam, reddish brown (5YR

4/4) moist; moderate medium subangular blocky structure; extremely hard, very

firm; thin nearly continuous clay films on faces of peds; few fine faint strong brown

(7.5YR 4.6) redoximorphic concentrations; few fine calcium carbonate concretions;

common fine visible threads of salts; exchangeable sodium of 39 percent;

moderately alkaline; clear smooth boundary. (8 to 18 inches thick)

Btnz2—25 to 34 inches; yellowish red (5YR 5/6) clay, yellowish red (5YR 4/6) moist;

weak medium blocky structure; extremely hard, very firm; thin nearly continuous

clay films on faces of peds; many fine irregular threads of salts; few medium

crystals of gypsum; exchangeable sodium of 53 percent; moderately alkaline; clear

smooth boundary. (9 to 23 inches thick)

B ́tn—34 to 50 inches; red (2.5YR 5/6) clay, red (2.5YR 4/6) moist; weak fine

subangular blocky structure; extremely hard, firm; thin patchy clay films on faces of

peds; exchangeable sodium of 52 percent; moderately alkaline; abrupt smooth

boundary. (10 to 33 inches thick)

Cr—50 to 55 inches; slightly gray (5YR 7/1) sandstone; rippable.

Range in Characteristics

Thickness of the solum: 40 to 60 inches

Exchangeable sodium percentage: 15 to 55 in the Btn horizon

Other features: The electrical conductivity of the saturation extract ranges from 0 to 8

mmhos/cm in the A horizon and from 2 to 16 mmhos/cm in the Btn horizon

A horizon:

Color—hue of 5YR or 7.5YR, value of 4 or 5, and chroma of 2 to 4; the Ap horizon

or materials between the soil surface and a depth of 18 cm after mixing have

moist value of 3 or less and dry value of 5 or less (crushed and smoothed

sample)

Texture—fine sandy loam, very fine sandy loam, loam, or silt loam

Reaction—moderately acid to slightly alkaline

Clay content—8 to 26 percent

Other features—horizon is typically hard when dry
524 Soil Survey

Btn horizon:

Color—hue of 5YR or 7.5YR, value of 4 or 5, and chroma of 2 to 6

Texture—silty clay loam, clay loam, silty clay, or clay

Reaction—neutral to moderately alkaline

Clay content—35 to 45 percent

Redoximorphic features—red concentrations

Other features—ped faces have a lower value and chroma than the matrix in most

pedons

Btnz1 horizon:

Color—hue of 2.5YR to 7.5YR, value of 4 or 5, and chroma of 3 to 6

Texture—silty clay loam, clay loam, silty clay, or clay

Reaction—slightly alkaline or moderately alkaline

Clay content—35 to 60 percent

Redoximorphic features—red and brown concentrations

Other features—calcium carbonate concretions and visible threads of salts occur

in most pedons

Btnz2 horizon:

Color—hue of 2.5YR or 5YR, value of 4 to 6, and chroma of 4 to 8

Texture—silty clay loam, clay loam, clay, or silty clay

Reaction—slightly alkaline or moderately alkaline

Clay content—35 to 60 percent

Redoximorphic features—red and brown concentrations

Other features—soft bodies of calcium carbonate, threads of salts, and dark

concretions occur in most pedons

B ́tn horizon:

Color—hue of 2.5YR or 5YR, value of 4 to 6, and chroma of 4 to 8

Texture—silty clay loam, clay loam, clay, or silty clay

Reaction—slightly alkaline or moderately alkaline

Clay content—35 to 60 percent

Other features—threads and soft bodies of salts occur in some pedons

Ironmound Series

Major land resource area: Central Rolling Red Prairies (80A)

Depth class: Shallow

Drainage class: Well drained

Parent material and geologic age: Sandstone or sandstone interbedded with siltstone

or sandy shale of Permian age

Physiographic region: Interior Lowlands

Physiographic province: Central Lowland

Physiographic sub-province: Osage Plain

Landscape: Upland

Landform: Hills

Landform position: Summit and backslope

Slope range: 1 to 40 percent

Slope shape: Convex-convex

Elevation range: 700 to 1,500 feet

Mean annual precipitation: 26 to 38 inches

Mean annual air temperature: 58 to 63 degrees F

Frost-free days: 200 to 230

Thornthwaite PE index: 44 to 64

Taxonomic class: Loamy, mixed, active, thermic, shallow Udic Haplustepts
Logan County, Oklahoma 525

Associated Soils

• Coyle and Kingfisher soils which have a solum more than 20 inches thick and have

Bt horizons; on landscapes similar to those of the Ironmound soils

• Masham soils which have a fine textured control section; on the lower backslopes

• Grainola and Piedmont soils which have a solum more than 20 inches thick, have Bt

horizons, and have a fine textured control section; on the lower backslopes

• Zaneis soils which have a solum more than 20 inches thick and have Bt horizons; on

the higher ridge crests and upper backslopes

Typical Pedon

Ironmound loam (fig. 19); Logan County, Oklahoma; in rangeland, 1 mile west and 2

miles north of Lovell, 500 feet west and 1,300 feet north of the southeast corner of

sec. 30, T. 19 N., R. 4 W. (Colors are for dry soil unless otherwise stated.)

A—0 to 7 inches; reddish brown (5YR 4/4) loam, dark reddish brown (5YR 3/4) moist;

moderate medium subangular blocky structure parting to moderate medium

granular; hard, friable; many very fine and fine roots; common very fine and fine

pores; slightly acid; clear smooth boundary. (4 to 8 inches thick)

Bw—7 to 16 inches; red (2.5YR 4/6) loam, dark red (2.5YR 3/6) moist; moderate

Figure 19.—Profile of Ironmound loam. Multiply the scale on the

left by 10 for centimeters.
526 Soil Survey

medium subangular blocky structure; hard, friable; common very fine and fine

roots; common very fine and fine pores; neutral; clear smooth boundary. (5 to 14

inches thick)

Cr—16 to 40 inches; red (2.5YR 4/6) weathered sandstone, dark red (2.5YR 3/6)

moist; neutral.

Range in Characteristics

Thickness of the ochric epipedon: 4 to 8 inches

Thickness of the solum: 10 to 20 inches

Depth to bedrock: 10 to 20 inches

A horizon:

Color—hue of 2.5YR or 5YR, value of 4 or 5, and chroma of 2 to 6

Texture—loam, silt loam, very fine sandy loam, or fine sandy loam

Reaction—moderately acid to moderately alkaline

Clay content—10 to 25 percent

Content and size of of coarse fragments—0 to 10 percent, by volume, sandstone

gravel less than 76 mm in diameter

Bw horizon:

Color—hue of 10R to 5YR, value of 4 or 5, and chroma of 4 to 6

Texture—loam or fine sandy loam

Reaction—slightly acid to moderately alkaline

Clay content—10 to 27 percent

Content and size of coarse fragments—0 to 10 percent, by volume, sandstone

gravel less than 76 mm in diameter

Cr horizon:

Color—hue of 10R to 5YR, value of 4 to 6, and chroma of 4 to 8

Texture—weathered sandstone or shale or sandstone that is interbedded with

siltstone or shale

Excavation difficulty—high or very high

Reaction—neutral to moderately alkaline

Kingfisher Series

Major land resource area: Central Rolling Red Prairies (80A)

Depth class: Moderately deep

Drainage class: Well drained

Parent material and geologic age: Loamy material weathered from silty red beds of

Permian age

Physiographic region: Interior Lowlands

Physiographic province: Central Lowland

Physiographic sub-province: Osage Plain

Landscape: Upland

Landform: Hills

Landform position: Summit and backslope

Slope range: 0 to 8 percent

Slope shape: Linear-convex

Elevation range: 700 to 1,500 feet

Mean annual precipitation: 26 to 38 inches

Mean annual air temperature: 58 to 63 degrees F

Frost-free days: 200 to 230

Thornthwaite PE index: 44 to 64

Taxonomic class: Fine-silty, mixed, active, thermic Udic Argiustolls
Logan County, Oklahoma 527

Associated Soils

• Bethany and Grant soils which are on nearby landscapes

• Norge and Pond Creek soils which are on the lower landscapes of high stream

terraces

• Grainola soils which do not have a mollic epipedon and have more than 35 percent

clay in the textural control section; in landscape positions similar to those of the

Kingfisher soils

• Lucien and Ironmound soils which do not have a Bt horizon and are less than 20

inches thick over sandstone; on adjacent landscapes, commonly in the more sloping

areas

• Ironmound soils which do not have a mollic epipedon

• Nash soils which do not have a Bt2 horizon and contain less than 18 percent clay in

the control section; on nearby landscapes

• Piedmont and Renthin soils which have more than 35 percent clay in the textural

control section; on adjacent landscapes, commonly in the more sloping areas

Typical Pedon

Kingfisher silt loam; Kingfisher County, Oklahoma; in a cultivated area, about 1 mile

west and 5 miles south of Kingfisher, 1,800 feet west and 50 feet south of the

northeast corner of sec. 16, T. 15 N., R. 7 W. (Colors are for dry soil unless otherwise

stated.)

Ap—0 to 14 inches; reddish brown (5YR 4/3) silt loam, dark reddish brown (5YR 3/3)

moist; moderate medium granular structure; slightly hard, friable; many fine roots;

upper 6 inches mixed by cultivation; many fine pores; slightly acid; gradual smooth

boundary. (8 to 16 inches thick)

BA—14 to 21 inches; reddish brown (5YR 4/4) silty clay loam, dark reddish brown

(5YR 3/4) moist; moderate coarse granular structure; hard, friable; many fine roots;

neutral; gradual smooth boundary. (3 to 10 inches thick)

Bt1—21 to 32 inches; reddish brown (5YR 4/4) silty clay loam, dark reddish brown

(5YR 3/4) moist; moderate medium subangular blocky structure; hard, firm;

common fine roots throughout peds; distinct continuous clay films on faces of

peds; slightly alkaline; gradual smooth boundary. (6 to 16 inches thick)

Bt2—32 to 38 inches; reddish brown (2.5YR 4/4) silty clay loam, dark reddish brown

(2.5YR 3/4) moist; moderate medium subangular blocky structure; hard, firm; few

fine pores; few fine roots; distinct continuous clay films on faces of peds;

moderately alkaline; gradual smooth boundary. (2 to 10 inches thick)

Cr—38 to 46 inches; red (2.5YR 5/8) weathered silty shale red beds, red (2.5YR 4/8)

moist; weakly effervescent.

Range in Characteristics

Thickness of the mollic epipedon: 8 to 16 inches

Thickness of the solum: 20 to 40 inches

Depth to bedrock: 20 to 40 inches

Ap horizon:

Color—hue of 5YR to 10YR, value of 4 or 5, and chroma of 2 or 3

Texture—loam or silt loam

Reaction—slightly acid to slightly alkaline

Clay content—15 to 27 percent

BA horizon:

Color—hue of 2.5YR to 7.5YR, value of 4 or 5, and chroma of 2 to 4

Texture—silt loam, silty clay loam, or clay loam
528 Soil Survey

Reaction—slightly acid or slightly alkaline

Clay content—25 to 35 percent

Bt1 horizon:

Color—hue of 2.5YR or 5YR, value of 4 or 5, and chroma of 3 to 6

Texture—silty clay loam or clay loam

Reaction—slightly acid to moderately alkaline

Clay content—27 to 35 percent

Bt2 horizon:

Color—hue of 2.5YR or 5YR, value of 4 or 5, and chroma of 3 to 6

Texture—silty clay loam, clay loam, or silty clay

Reaction—slightly acid to moderately alkaline

Clay content—27 to 42 percent

BC horizon (if it occurs):

Color—hue of 2.5YR or 5YR, value of 4 or 5, and chroma of 3 to 6

Texture—silty clay loam, clay loam, or silty clay

Reaction—neutral to moderately alkaline

Clay content—27 to 42 percent

Cr horizon:

Color—hue of 2.5YR or 5YR, value of 4 or 5, and chroma of 4 to 8

Texture—weathered interbedded siltstone, shale, and sandstone

Hardness—horizon is paralithic and has high excavation difficulty

Reaction—slightly alkaline or moderately alkaline

Kirkland Series

Major land resource area: Central Rolling Red Prairies (80A)

Depth class: Very deep

Drainage class: Well drained

Parent material and geologic age: Material weathered from predominantly clayey

mantles over shale of Permian age

Physiographic region: Interior Lowlands

Physiographic province: Central Lowland

Physiographic sub-province: Osage Plain

Landscape: Upland

Landform: Terrace

Landform position: Tread

Slope range: 0 to 3 percent

Slope shape: Linear-linear/concave

Elevation range: 800 to 1,300 feet

Frost-free days: 190 to 230

Mean annual precipitation: 26 to 38 inches

Mean annual air temperature: 58 to 64 degrees F

Thornthwaite PE index: 44 to 64

Taxonomic class: Fine, mixed, superactive, thermic Udertic Paleustolls

Associated Soils

• Renfrow soils which are on side slopes on the lower parts of the landscape

• Aydelotte and Grainola soils which do not have a mollic epipedon; on side slopes on

the lower parts of the landscape

• Bethany soils which are on the slightly higher parts of the landscape

• Pawhuska and Doolin soils which have a natric horizon; on nearby landscapes

• Pond Creek soils which are fine silty; on high terraces
Logan County, Oklahoma 529

• Tabler soils which are on the same landscape as the Kirkland soils but in the slightly

lower positions

• Waurika soils which are on nearby landscapes in the slightly concave areas

• Renthin and Piedmont soils which have a solum less than 60 inches thick; on side

slopes on the lower parts of the landscape

Typical Pedon

Kirkland silt loam, 0 to 1 percent slopes (fig. 20); Logan County, Oklahoma; in a

cultivated area, about 4 miles south and 8 miles west of Guthrie, 1,000 feet north and

Figure 20.—Profile of Kirkland silt loam. Multiply the scale on

the left by 10 for centimeters.
530 Soil Survey

150 feet west of the southeast corner of sec. 36, T. 16 N., R. 4 W. (Colors are for dry

soil unless otherwise stated.)

Ap—0 to 8 inches; dark grayish brown (10YR 4/2, exterior) and grayish brown (10YR

5/2, crushed) silt loam, very dark brown (10YR 2/2, exterior) and very dark grayish

brown (10YR 3/2, crushed) moist; moderate medium subangular blocky structure

parting to moderate fine granular; soft, very friable; common very fine and fine

roots throughout horizon; common very fine and fine vesicular and tubular pores;

electrical conductivity of the saturation extract is less than 1 mmho/cm; sodium

adsorption ratio of less than 1; strongly acid; abrupt wavy boundary. (6 to 14

inches thick)

Bt1—8 to 19 inches; dark grayish brown (10YR 4/2, exterior) and dark grayish brown

(10YR 4/2, crushed) silty clay, black (10YR 2/1, exterior) and very dark gray (10YR

3/1, crushed) moist; weak medium prismatic structure parting to strong medium

subangular blocky; very hard, very firm; common very fine and fine roots

throughout horizon; common very fine and fine vesicular and tubular pores; few

fine rounded iron-manganese concretions; 65 percent of volume has distinct

discontinuous clay films in root channels and pores; electrical conductivity of the

saturation extract is less than 1 mmho/cm; sodium adsorption ratio of 2; neutral;

gradual smooth boundary. (11 to 15 inches thick)

Bt2—19 to 28 inches; brown (7.5YR 4/2, exterior) and (7.5YR 4/3, crushed) silty clay,

dark brown (7.5YR 3/2, exterior) and (7.5YR 3/3, crushed) moist; weak medium

and coarse prismatic structure parting to strong medium subangular blocky;

extremely hard, extremely firm; common very fine and fine roots throughout

horizon; common very fine and fine vesicular and tubular pores; about 2 percent of

volume is prominent continuous intersecting slickensides on faces of peds;

electrical conductivity of the saturation extract is less than 1 mmho/cm; sodium

adsorption ratio of 4; slightly alkaline; clear smooth boundary. (6 to 20 inches thick)

Btk—28 to 42 inches; brown (7.5YR 4/2, exterior) and brown (7.5YR 4/3, crushed) silty

clay, dark brown (7.5YR 3/2, exterior) and dark brown (7.5YR 3/3, crushed) moist;

weak medium and coarse prismatic structure parting to strong medium angular

blocky; extremely hard, extremely firm; common very fine and fine roots

throughout horizon; common very fine and fine vesicular and tubular pores; few

fine and medium irregular carbonate threads; few medium rounded carbonate

concretions; few medium rounded iron-manganese concretions; common distinct

discontinuous clay films on faces of peds; common prominent continuous

intersecting slickensides; electrical conductivity of the saturation extract is 1

mmho/cm; sodium adsorption ratio of 6; strongly effervescent; moderately alkaline;

gradual wavy boundary. (10 to 20 inches thick)

2Bt1—42 to 51 inches; brown (7.5YR 4/4, exterior) and dark brown (7.5YR 3/4,

crushed) silty clay, dark brown (7.5YR 3/4, exterior) and dark brown (7.5YR 3/4,

crushed) moist; strong medium prismatic structure parting to strong medium

angular blocky; extremely hard, extremely firm; few very fine and fine roots

throughout horizon; common very fine and fine vesicular and tubular pores; few

fine and medium rounded iron-manganese concretions; common faint continuous

clay films on faces of peds; common distinct continuous intersecting slickensides;

electrical conductivity of the saturation extract is 1.5 mmhos/cm; sodium

adsorption ratio of 7; strongly effervescent; moderately alkaline; gradual wavy

boundary. (0 to 16 inches thick)

2Btk—51 to 60 inches; reddish brown (2.5YR 4/4, exterior) and reddish brown (2.5YR

4/4, crushed) silty clay, dark reddish brown (2.5YR 3/4, exterior) and dark reddish

brown (2.5YR 3/4, crushed) moist; moderate medium and coarse prismatic

structure parting to strong medium angular blocky; very hard, very firm; common

very fine and fine roots throughout horizon; common very fine and fine vesicular

and tubular pores; many fine and common medium distinct dark red (2.5YR 3/6)
Logan County, Oklahoma 531

redoximorphic accumulations associated with root channels; few fine and medium

and few coarse rounded iron-manganese concretions; few medium and coarse

carbonate concretions; cracks between peds are filled with dark brown (7.5YR 3/3)

silty clay loam; 1 percent quartzite pebbles; electrical conductivity of the saturation

extract is 1.76 mmhos/cm; sodium adsorption ratio of 8; strongly effervescent;

moderately alkaline; gradual wavy boundary. (0 to 18 inches thick)

2Bt2—60 to 75 inches; red (2.5YR 4/6, exterior) and reddish brown (2.5YR 4/4,

crushed) silty clay, dark reddish brown (2.5YR 3/6, exterior) and dark red (2.5YR

3/4, crushed) moist; moderate coarse prismatic structure parting to moderate

medium and coarse subangular blocky; very hard, very firm; few very fine and fine

roots throughout horizon; common fine and common very fine vesicular and

tubular pores; cracks between peds filled with dark brown (7.5YR 3/3) silty clay

loam from above; common fine and medium prominent gray (10YR 6/1) and very

dark gray (10YR 3/1) redoximorphic depletions associated with root channels;

electrical conductivity of the saturation extract is 2.16 mmhos/cm; sodium

adsorption ratio of 8; strongly effervescent; slightly alkaline; diffuse wavy boundary.

(0 to 15 inches thick)

2Bt3—75 to 82 inches; red (2.5YR 4/6, exterior) and reddish brown (2.5YR 4/4,

crushed) silty clay, dark red (2.5YR 3/6, exterior) and dark reddish brown (2.5YR

3/4, crushed) moist; moderate coarse prismatic structure parting to moderate

medium and coarse subangular blocky; very hard, very firm; common very fine

roots throughout horizon; common fine and very fine vesicular and tubular pores;

few medium prominent brown (7.5YR 5/3), common fine distinct reddish gray (5YR

5/2), and common fine prominent very dark grayish brown (10YR 3/2)

redoximorphic accumulations and depletions associated with root channels; few

fine irregular threads of calcium carbonate; electrical conductivity of the saturation

extract is 2.12 mmhos/cm; sodium adsorption ratio of 7; strongly effervescent;

slightly alkaline; abrupt wavy boundary. (0 to 11 inches thick)

3Cr—82 to 98 inches; red (2.5YR 5/8, exterior) weakly cemented sandy siltstone, red

(2.5YR 4/8, exterior) moist; very hard, very firm; very few very fine roots in cracks;

very slightly effervescent; slightly alkaline.

Range in Characteristics

Thickness of the mollic epipedon: 17 to 25 inches

Thickness of the solum: More than 60 inches

Depth to carbonates: 25 to 50 inches

Depth to bedrock: More than 60 inches

Other features: Cracks within a depth of 125 cm that are 5 mm or more wide and

extend through a thickness of 30 cm or more for some time in most years;

slickensides in a layer 15 cm or more thick that has its upper boundary within a

depth of 125 cm; linear extensibility of 6.0 cm or more between the mineral soil

surface and a depth of 100 cm

A horizon:

Color—hue of 7.5YR or 10YR, value of 3 to 5, and chroma of 2 or 3

Texture—silt loam, clay loam, or silty clay loam

Reaction—moderately acid to neutral

Clay content—13 to 35 percent

Electrical conductivity of the saturation extract—0 to 1 mmho/cm

Sodium adsorption ratio—1 to 4

Bt1 horizon:

Color—hue of 5YR to 10YR, value of 3 to 5, and chroma of 2 or 3

Texture—clay or silty clay

Reaction—neutral or slightly alkaline
532 Soil Survey

Clay content—40 to 60 percent

Electrical conductivity of the saturation extract—0 to 2 mmhos/cm

Sodium adsorption ratio—2 to 12

Bt2 horizon:

Color—hue of 5YR to 10YR, value of 3 to 5, and chroma of 2 to 4

Texture—clay or silty clay

Reaction—neutral to moderately alkaline

Clay content—40 to 60 percent

Electrical conductivity of the saturation extract—0 to 2 mmhos/cm

Sodium adsorption ratio—2 to 12

Btk horizon:

Color—hue of 2.5YR to 10YR, value of 4 to 6, and chroma of 3 to 6

Texture—clay, silty clay, clay loam, or silty clay loam

Reaction—slightly alkaline or moderately alkaline; horizon is calcareous

Clay content—35 to 60 percent

Electrical conductivity of the saturation extract—2 to 4 mmhos/cm

Sodium adsorption ratio—3 to 16

2Bt and 2Btk horizons:

Color—hue of 2.5YR to 10YR, value of 4 to 6, and chroma of 2 to 8

Texture—clay, silty clay, clay loam, or silty clay loam

Reaction—slightly alkaline or moderately alkaline; horizon is calcareous

Clay content—35 to 60 percent

Electrical conductivity of the saturation extract—2 to 4 mmhos/cm

Sodium adsorption ratio—3 to 16

Redoximorphic features—common redoximorphic accumulations and depletions in

shades of red, brown, or gray

3Cr horizon:

Color—hue of 2.5YR to 7.5YR, value of 4 to 8, and chroma of 2 to 8

Texture—weakly consolidated shale, clay, or siltstone

Excavation difficulty—low or moderate

Reaction—moderately alkaline; horizon is calcareous

Konawa Series

Major land resource area: Northern Cross Timbers (84A)

Depth class: Very deep

Drainage class: Well drained

Parent material and geologic age: Sandy and loamy stream terrace sediments of

Pleistocene age

Physiographic region: Interior Lowlands

Physiographic province: Central Lowland

Physiographic sub-province: Osage Plain

Landscape: Upland

Landform: Terrace

Landform position: Tread and riser

Slope range: 0 to 20 percent

Slope shape: Linear/convex-convex

Elevation range: 500 to 1,500 feet

Mean annual precipitation: 30 to 40 inches

Mean annual air temperature: 58 to 64 degrees F

Frost-free days: 200 to 230
Logan County, Oklahoma 533

Thornthwaite PE index: 48 to 64

Taxonomic class: Fine-loamy, mixed, active, thermic Ultic Haplustalfs

Associated Soils

• Dougherty and Stidham soils which are in areas of the landscape similar to those of

the Konawa soils but, in some places, are in the slightly higher areas

• Bastrop soils which have thicker argillic horizons that do not decrease in clay content

as depth increases; on broad flat landscapes that are slightly higher and farther from

the stream channel than the Konawa soils

• Eufaula soils which have A horizons more than 20 inches thick and have a sandy

control section; on the slightly higher landscapes

• Teller soils which have a mollic epipedon; commonly on landscapes similar to those

of the Konawa soils but farther from the stream channel

Typical Pedon

Konawa fine sandy loam (fig. 21); Payne County, Oklahoma; in bermudagrass pasture,

about 8 miles west and 1 mile south of Perkins, 2,000 feet north and 200 feet west of

the southeast corner of sec. 10, T. 17 N., R. 1 E. (Colors are for dry soil unless

otherwise stated.)

A—0 to 9 inches; brown (7.5YR 5/2) fine sandy loam, dark brown (7.5YR 3/2) moist;

weak fine granular structure; slightly hard, very friable; slightly acid; clear smooth

boundary. (4 to 10 inches thick)

E—9 to 17 inches; light reddish brown (5YR 6/4) fine sandy loam, reddish brown (5YR

4/4) moist; weak fine granular structure; slightly hard, very friable; slightly acid;

clear smooth boundary. (0 to 17 inches thick)

Bt—17 to 53 inches; red (2.5YR 4/6) sandy clay loam, dark red (2.5YR 3/6) moist;

moderate medium subangular blocky structure; very hard, friable; thin

discontinuous clay films on peds; moderately acid; gradual smooth boundary.

(10 to 36 inches thick)

BC—53 to 72 inches; red (2.5YR 5/6) fine sandy loam, red (5YR 4/6) moist; weak

coarse subangular blocky structure; very hard, friable; neutral.

Range in Characteristics

Thickness of the ochric epipedon: 4 to 20 inches

Thickness of the solum: 48 to more than 72 inches

A horizon:

Color—hue of 5YR to 10YR, value of 4 to 7, and chroma of 2 to 6

Texture—fine sandy loam, loamy fine sand, or fine sand

Reaction—strongly acid to slightly acid

Clay content—2 to 18 percent

E horizon:

Color—hue of 5YR to 10YR, value of 5 to 8, and chroma of 2 to 6

Texture—fine sandy loam, loamy fine sand, or fine sand

Reaction—strongly acid to slightly acid

Clay content—2 to 18 percent

Bt horizon:

Color—hue of 2.5YR to 7.5YR, value of 4 to 7, and chroma of 4 to 8

Texture—fine sandy loam or sandy clay loam

Reaction—strongly acid to neutral

Clay content—18 to 30 percent

Content and size of coarse fragments—0 to 5 percent, by volume, rounded gravel

2 to 10 mm in diameter
534 Soil Survey

BC horizon:

Color—hue of 2.5YR to 7.5YR, value of 4 to 7, and chroma of 4 to 8

Texture—fine sandy loam, sandy clay loam, or loamy fine sand

Reaction—strongly acid to neutral

Clay content—7 to 30 percent

C horizon (if it occurs):

Color—hue of 2.5YR to 7.5YR, value of 4 to 7, and chroma of 4 to 8

Texture—fine sandy loam, loamy fine sand, or fine sand

Reaction—strongly acid to slightly alkaline

Clay content—7 to 30 percent

Figure 21.—Profile of Konawa fine sandy loam. The scale on

the right is in centimeters.
Logan County, Oklahoma 535

Lawrie Series

Major land resource area: Central Rolling Red Prairies (80A)

Depth class: Very deep

Drainage class: Well drained

Parent material and geologic age: Loamy alluvium of Recent age

Physiographic region: Interior Lowlands

Physiographic province: Central Lowland

Physiographic sub-province: Osage Plain

Landscape: Valley

Landform: High flood plain or low flood plain

Slope range: 0 to 3 percent

Slope shape: Linear-linear

Elevation range: 700 to 1,400 feet

Mean annual precipitation: 26 to 40 inches

Mean annual air temperature: 58 to 64 degrees F

Frost-free days: 200 to 230

Thornthwaite PE index: 44 to 64

Taxonomic class: Fine-silty, mixed, superactive, thermic Pachic Argiustolls (fig. 22)

Associated Soils

• Ashport and Port soils which are at the lower elevations on flood plains, nearer to

the stream than the Lawrie soils

• Easpur soils which have a fine-loamy control section; at the lower elevations on flood

plains, nearer to the stream than the Lawrie soils

• Yahola and Pulaski soils which have a coarse-loamy control section; at the lower

elevations on flood plains, nearer to the stream than the Lawrie soils

• Norge soils which are on stream terraces farther from the stream than the Lawrie

soils

• Teller soils which have a fine-loamy control section; on stream terraces farther from

the stream than the Lawrie soils

Typical Pedon

Lawrie silt loam, 0 to 1 percent slopes, occasionally flooded; Logan County, Oklahoma;

in a cultivated area, 1,800 feet east and 700 feet south of the northwest corner of sec.

27, T. 17 N., R. 1 W. (Colors are for dry soil unless otherwise stated.)

Ap—0 to 6 inches; reddish brown (5YR 4/3, crushed) loam, dark reddish brown (5YR

3/3, crushed) moist; moderate fine subangular blocky structure parting to

moderate medium granular; soft, very friable; many very fine and fine roots

throughout horizon; common very fine and fine discontinuous tubular pores;

moderately acid (pH 5.8); abrupt smooth boundary. (6 to 25 inches thick)

Ad—6 to 10 inches; reddish brown (5YR 4/3, crushed) loam, dark reddish brown (5YR

3/2, crushed) moist; moderate coarse subangular blocky structure; very hard, very

firm; many very fine and fine roots between peds; few very fine discontinuous

tubular pores; slightly acid (pH 5.8); abrupt smooth boundary. (0 to 4 inches thick)

Bt1—10 to 19 inches; reddish brown (5YR 4/3, crushed) silt loam, dark reddish brown

(5YR 3/3, crushed) moist; moderate medium subangular blocky structure parting

to moderate fine subangular blocky; hard, friable; common very fine and fine roots

throughout horizon; many very fine and many fine continuous tubular pores;

common faint discontinuous clay films on faces of peds; slightly acid (pH 6.0);

gradual smooth boundary. (0 to 7 inches thick)

Bt2—19 to 26 inches; reddish brown (5YR 4/3, crushed) silty clay loam, dark reddish

brown (5YR 3/3, crushed) moist; moderate medium prismatic structure parting to

strong medium angular blocky; hard, very firm; common very fine roots throughout
536 Soil Survey

horizon; many very fine and many fine continuous tubular pores; many distinct

continuous clay films on faces of peds; slightly acid (pH 6.3); gradual wavy

boundary. (7 to 26 inches thick)

Btb—26 to 34 inches; dark reddish brown (5YR 4/3, crushed) clay loam, dark reddish

brown (5YR 3/3, crushed) moist; strong medium prismatic structure parting to

strong medium angular blocky; very hard, very firm; common very fine roots

throughout horizon; common fine and many very fine continuous tubular pores;

many distinct continuous clay films on vertical and horizontal faces of peds;

slightly acid (pH 6.3); gradual wavy boundary. (7 to 22 inches thick)

Figure 22.—Profile of Lawrie loam. Multiply the scale on

the left by 10 for centimeters.
Logan County, Oklahoma 537

2Btb1—34 to 51 inches; red (2.5YR 4/6, crushed) loam, red (2.5YR 3/6, crushed)

moist; strong medium prismatic structure parting to strong medium angular blocky;

very hard, very firm; few very fine roots throughout horizon; common fine and

many very fine continuous tubular pores; many distinct continuous clay films on

vertical and horizontal faces of peds; slightly acid (pH 6.5); diffuse wavy boundary.

(0 to 23 inches thick)

2Btb2—51 to 72 inches; red (2.5YR 5/6, crushed) loam, red (2.5YR 4/6, crushed)

moist; strong coarse prismatic structure parting to strong coarse angular blocky;

very hard, firm; few very fine roots throughout horizon; many very fine, few

medium, and common fine continuous tubular pores; few faint continuous clay

films on vertical and horizontal faces of peds; common fine irregular ironmanganese masses; neutral (pH 7.0); abrupt wavy boundary. (0 to 14 inches thick)

2Bkb—72 to 82 inches; red (2.5YR 5/6, crushed) loam, red (2.5YR 4/6, crushed)

moist; moderate medium prismatic structure parting to moderate medium angular

blocky; hard, firm; few very fine roots throughout horizon; many very fine, many

fine, and common medium continuous tubular pores; secondary calcium

carbonates are long, narrow, vertically oriented bodies of soft lime; many very

coarse and extremely coarse cylindrical masses of lime; strongly effervescent

(HCl, 1 normal) continuous; moderately alkaline (pH 8.0); gradual wavy boundary.

(0 to 23 inches thick)

2BCkb—82 to 89 inches; red (2.5YR 5/6, crushed) sandy clay loam, red (2.5YR 4/6)

moist; weak medium prismatic structure; hard, friable; few very fine roots between

peds; many very fine, many fine, and common medium continuous tubular pores;

common fine irregular iron-manganese masses; many very coarse and extremely

coarse cylindrical soft masses of lime; few fine and medium dendritic lime nodules;

strongly effervescent (HCl, 1 normal) continuous; moderately alkaline (pH 8.0).

(0 to 22 inches thick)

Range in Characteristics

Thickness of the mollic epipedon: 20 to 55 inches

Thickness of the solum: More than 60 inches

Depth to carbonates: 30 to 60 inches

A horizon:

Color—hue of 5YR to 10YR, value of 3 to 5, and chroma of 2 or 3

Texture—silt loam or loam

Reaction—typically slightly acid to slightly alkaline; horizon ranges to very strongly

acid where nitrogen fertilizer has been used extensively

Clay content—15 to 26 percent

BA horizon (if it occurs):

Color—hue of 5YR to 10YR, value of 4 or 5, and chroma of 2 or 3

Texture—silt loam or silty clay loam

Reaction—slightly acid to moderately alkaline

Clay content—15 to 35 percent

Bt and Btb horizons:

Color—hue of 5YR or 7.5YR, value of 4 or 5, and chroma of 2 to 4

Texture—silty clay loam, silt loam, or loam

Reaction—slightly acid to moderately alkaline

Clay content—18 to 35 percent

2Btb horizon:

Color—hue of 2.5YR or 5YR, value of 4 or 5, and chroma of 2 to 6

Texture—silty clay loam, clay loam, or loam
538 Soil Survey

Reaction—slightly acid to moderately alkaline

Clay content—18 to 35 percent

Bk or 2Bkb horizon:

Color—hue of 2.5YR or 5YR, value of 4 or 5, and chroma of 4 to 6

Texture—silty clay loam, clay loam, sandy clay loam, or loam

Reaction—moderately alkaline; horizon is calcareous

Clay content—18 to 38 percent

Other features—masses or concretions of calcium carbonate

BC, BCk, or 2BCkb horizon:

Color—hue of 2.5YR or 5YR, value of 4 or 5, and chroma of 4 to 6

Texture—silty clay loam, clay loam, sandy clay loam, or loam

Reaction—moderately alkaline

Lebron Series

Major land resource area: Central Rolling Red Prairies (80A)

Depth class: Very deep

Drainage class: Very poorly drained

Parent material and geologic age: Clayey alluvial sediments over sandy alluvial

sediments of Recent age

Physiographic region: Interior Lowlands

Physiographic province: Central Lowland

Physiographic sub-province: Osage Plain

Landscape: Valley

Landform: Low flood plain

Slope range: 0 to 1 percent

Slope shape: Concave-concave

Elevation range: 700 to 1,300 feet

Mean annual precipitation: 26 to 40 inches

Mean annual air temperature: 58 to 64 degrees F

Frost-free days: 200 to 230

Thornthwaite PE index: 44 to 64

Taxonomic class: Clayey over sandy or sandy-skeletal, mixed, superactive, thermic

Fluvaquentic Hapludolls

Associated Soils

• Gaddy soils which are typically closer to the drainage system than the Lebron soils

• Goodnight soils which are on dunes

• Yahola soils which are in the slightly higher positions

Typical Pedon

Lebron clay, 0 to 1 percent slopes, occasionally flooded (fig. 23); Logan County,

Oklahoma; in pastureland, 3,800 feet east and 120 feet south of the northwest corner

of sec. 9, T. 17 N., R. 2 W. (Colors are for dry soil unless otherwise indicated.)

A1—0 to 5 inches; reddish gray (5YR 5/2) silty clay, dark reddish brown (5YR 3/2)

moist; weak coarse prismatic structure parting to weak coarse subangular blocky;

extremely hard, extremely firm; many very fine, common fine, and few medium

roots; very fine moderate constricted tubular pores; few fine prominent gray (10YR

6/1) redoximorphic depletions; common brown (7.5YR 4/4) rhizospheres; strongly

effervescent; moderately alkaline; abrupt smooth boundary. (4 to 12 inches thick)

Ad—5 to 9 inches; reddish gray (5YR 5/2) silty clay, dark reddish gray (5YR 3/2) moist;

weak medium prismatic structure parting to moderate fine blocky; extremely hard,
Logan County, Oklahoma 539

extremely firm; many very fine and few fine and medium roots; common very fine

moderate constricted tubular pores; few fine prominent gray (10YR 6/1)

redoximorphic depletions; common brown (7.5YR 4/4) rhizospheres; strongly

effervescent; moderately alkaline; clear smooth boundary. (0 to 5 inches thick)

A2—9 to 14 inches; reddish gray (5YR 5/2) silty clay, dark reddish gray (5YR 3/2)

moist; weak medium prismatic structure parting to moderate fine blocky; extremely

hard, extremely firm; many very fine roots; common very fine constricted tubular

pores; few fine prominent gray (10YR 6/1) redoximorphic depletions; common

brown (7.5YR 4/4) rhizospheres; strongly effervescent; moderately alkaline; clear

smooth boundary. (0 to 5 inches thick)

C1—14 to 18 inches; reddish brown (5YR 5/3) silty clay, dark reddish brown (5YR 3/3)

moist; massive; very hard, very firm; many very fine roots; common distinct strata

of loamy fine sand and finer materials 1

/8 inch to 2 inches thick; many very fine

moderate constricted tubular pores; violently effervescent; moderately alkaline;

abrupt wavy boundary. (7 to 29 inches thick)

C2—18 to 28 inches; light reddish brown (5YR 6/4) silty clay loam, reddish brown

(5YR 4/4) moist; massive; hard, firm; many very fine roots; common prominent

Figure 23.—Profile of Lebron clay, 0 to 1 percent slopes,

occasionally flooded. The scale is in centimeters.
540 Soil Survey

strata of fine sandy loam and finer materials 1

/8 inch to 6 inches thick; common

very fine moderate constricted pores; violently effervescent; moderately alkaline;

abrupt wavy boundary. (0 to 15 inches thick)

2C—28 to 80 inches; light reddish brown (5YR 6/4) loamy fine sand, reddish brown

(5YR 5/4) moist; single grained; soft, very friable; common prominent strata of fine

sand, sand, silty clay loam, and silt loam 1/8 inch to 6 inches thick and 3 to 12

inches apart; strongly effervescent; moderately alkaline. (20 to 51 inches thick)

Range in Characteristics

Depth to carbonates: Profile is calcareous throughout

A horizon:

Color—hue of 7.5YR or 5YR, value of 4 or 5, and chroma of 2 or 3

Texture—clay loam, silty clay loam, silty clay, or clay

Reaction—slightly alkaline or moderately alkaline

Clay content—27 to 60 percent

Redoximorphic features—observable concentrations and depletions

C1 horizon:

Color—hue of 7.5YR or 5YR, value of 4 or 5, and chroma of 2 to 4

Texture—stratified silty clay, clay, clay loam, silt loam, or silty clay loam

Reaction—slightly alkaline or moderately alkaline

Clay content—15 to 60 percent

C2 horizon:

Color—hue of 7.5YR or 5YR, value of 4 to 7, and chroma of 4 to 6

Texture—silt loam that is stratified with finer and coarser materials

Reaction—moderately alkaline

Clay content—2 to 14 percent

2C horizon:

Color—hue of 7.5YR or 5YR, value of 5 to 8, and chroma of 4 to 6

Texture—stratified loamy fine sand, fine sand, or sand

Clay content—2 to 14 percent

Littleaxe Series

Major land resource area: Cross Timbers (84A)

Depth class: Deep

Drainage class: Well drained

Parent material and geologic age: Material weathered from weakly cemented

sandstone interbedded with weakly cemented shale of Permian age

Physiographic region: Interior Lowlands

Physiographic province: Central Lowland

Physiographic sub-province: Osage Plain

Landscape: Upland

Landform: Hills

Landform position: Summit and backslope

Slope range: 1 to 5 percent

Slope shape: Linear-convex

Elevation range: 900 to 1,300 feet

Mean annual precipitation: 30 to 38 inches

Mean annual air temperature: 58 to 62 degrees F

Frost-free days: 200 to 230

Thornthwaite PE index: 48 to 64

Taxonomic class: Fine-loamy, siliceous, active, thermic Ultic Haplustalfs
Logan County, Oklahoma 541

Associated Soils

• Darnell and Darsil soils which do not have Bt horizons and are less than 20 inches

deep to bedrock; commonly in areas similar to those of the Littleaxe soils

• Harrah soils which have a solum more than 60 inches thick and do not decrease in

clay content by 20 percent or more within a depth of 60 inches; on footslopes

• Newalla soils which have an abrupt texture change between the A and Bt horizons

and have a fine control section; in areas similar to those of the Littleaxe soils

• Noble soils which have a coarse-loamy control section; on footslopes

• Stephenville soils which have a solum ranging from 20 to 40 inches in thickness; in

areas similar to those of the Littleaxe soils

Typical Pedon

Littleaxe loamy fine sand; Cleveland County, Oklahoma; on a 2 percent convex

southeast-facing upland ridge crest, in a forest of post oak and blackjack oak, about 11

miles east of the intersection of Oklahoma State Highway 9 and U.S. Highway 77,

about 2,120 feet west and 380 feet south of the northeast corner of sec. 6, T. 8 N.,

R. 1 E. (Colors are for dry soil unless otherwise stated.)

A—0 to 7 inches; grayish brown (10YR 5/2) loamy fine sand, very dark grayish brown

(10YR 3/2) moist; weak fine granular structure; slightly hard, very friable; many

very fine and fine roots; neutral; clear wavy boundary. (3 to 10 inches thick)

E—7 to 16 inches; pink (7.5YR 7/4) loamy fine sand, brown (7.5YR 5/4) moist; weak

fine granular structure; soft, very friable; many very fine and fine roots; slightly

acid; clear wavy boundary. (0 to 11 inches thick)

Bt1—16 to 28 inches; yellowish red (5YR 5/6) sandy clay loam, yellowish red (5YR

4/6) moist; moderate medium subangular blocky structure; very hard, friable;

common very fine, fine, and medium roots; nearly continuous clay films on faces of

peds; strongly acid; gradual smooth boundary. (7 to 21 inches thick)

Bt2—28 to 37 inches; yellowish red (5YR 5/6) fine sandy loam, yellowish red (5YR 4/6)

moist; weak medium subangular blocky structure; very hard, friable; common very

fine, fine, and medium roots; patchy clay films on faces of peds; strongly acid;

gradual smooth boundary. (0 to 24 inches thick)

BC1—37 to 43 inches; reddish yellow (5YR 6/6) fine sandy loam, yellowish red (5YR

5/6) moist; weak medium subangular blocky structure; hard, friable; common very

fine, fine, and medium roots; patchy clay films on faces of peds; strongly acid;

clear smooth boundary. (0 to 18 inches thick)

BC2—43 to 52 inches; reddish yellow (7.5YR 7/6) fine sandy loam, reddish yellow

(7.5YR 6/6) moist; weak coarse subangular blocky structure; hard, friable; few very

fine and fine roots; clay bridging sand grains; reddish yellow (7.5YR 6/8)

redoximorphic concentrations, strong brown (7.5YR 5/8) moist; strongly acid; clear

smooth boundary. (0 to 11 inches thick)

Cr—52 to 60 inches; reddish yellow (7.5YR 6/8) and yellowish red (5YR 5/6) weakly

cemented sandstone interbedded with red (2.5YR 5/8) weakly cemented shale;

strongly acid.

Range in Characteristics

Thickness of the solum: 40 to 60 inches

Depth to bedrock: 40 to 60 inches

A or Ap horizon:

Color—hue of 5YR to 10YR, value of 4 to 6, and chroma of 2 to 4

Texture—loamy fine sand or fine sandy loam

Reaction—strongly acid to neutral

Clay content—3 to 18 percent
542 Soil Survey

E horizon:

Color—hue of 5YR or 7.5YR, value of 4 to 7, and chroma of 3 to 6

Texture—loamy fine sand or fine sandy loam

Reaction—very strongly acid to slightly acid

Clay content—3 to 18 percent

Bt1 horizon:

Color—hue of 5YR or 7.5YR and value and chroma of 4 to 6

Texture—sandy clay loam or fine sandy loam

Reaction—very strongly acid to slightly acid

Clay content—15 to 35 percent

Redoximorphic features—red concentrations

Bt2 horizon:

Color—hue of 2.5YR to 7.5YR, value of 5 or 6, and chroma of 6 to 8

Texture—fine sandy loam or sandy clay loam

Reaction—very strongly acid to slightly acid

Clay content—15 to 35 percent

Bt3 horizon (if it occurs):

Color—hue of 2.5YR to 7.5YR, value of 5 or 6, and chroma of 6 to 8

Texture—fine sandy loam or sandy clay loam

Reaction—very strongly acid to slightly acid

Clay content—15 to 35 percent

BC horizon:

Color—hue of 2.5YR to 7.5YR, value of 5 to 7, and chroma of 6 to 8

Texture—fine sandy loam or sandy clay loam

Reaction—very strongly acid to slightly acid in the upper part of horizon and

strongly acid to neutral in the lower part

Clay content—14 to 30 percent

Redoximorphic features—red, yellow, or brown concentrations

Content and size of coarse fragments—0 to 20 percent, by volume; 2 to 76 mm in

diameter

Cr horizon:

Color—red, yellow, or brown

Texture—weathered sandstone

Lucien Series

Major land resource area: Central Rolling Red Prairies (80A)

Depth class: Shallow

Drainage class: Well drained

Parent material and geologic age: Material weathered from sandstone, interbedded

with clay, siltstone, or sandy shale of Permian age

Physiographic region: Interior Lowlands

Physiographic province: Central Lowland

Physiographic sub-province: Osage Plain

Landscape: Upland

Landform: Hills

Landform position: Summit and backslope

Slope range: 1 to 30 percent

Slope shape: Convex-convex

Elevation range: 700 to 1,500 feet

Mean annual precipitation: 26 to 40 inches
Logan County, Oklahoma 543

Mean annual air temperature: 58 to 64 degrees F

Frost-free days: 200 to 230

Thornthwaite PE index: 44 to 64

Taxonomic class: Loamy, mixed, superactive, thermic, shallow Udic Haplustolls

Associated Soils

• Coyle and Kingfisher soils which have a solum more than 20 inches thick and have

Bt horizons; commonly on adjacent side slopes

• Nash soils which have a solum more than 20 inches thick; commonly on adjacent

side slopes

• Stoneburg and Zaneis soils which have Bt horizons; commonly on adjacent side

slopes

• Grainola and Steedman soils which have Bt horizons, have a fine control section,

and have a solum more than 20 inches thick; commonly on adjacent side slopes

• Shidler soils which are on ridges

Typical Pedon

Lucien very fine sandy loam; Noble County, Oklahoma; in rangeland, about 6 miles

east and 8 miles north of Perry, 3,000 feet east and 2,450 feet south of the northwest

corner of sec. 2, T. 22 N., R. 1 E. (Colors are for dry soil unless otherwise indicated.)

A—0 to 4 inches; brown (7.5YR 4/2) very fine sandy loam, dark brown (7.5YR 3/2)

moist; moderate fine and medium granular structure; slightly hard, very friable;

many very fine and fine roots throughout horizon; common irregular wormcasts;

few very fine and common fine and medium constricted tubular pores; slightly acid;

clear smooth boundary. (4 to 10 inches thick)

BA—4 to 8 inches; brown (7.5YR 4/2) very fine sandy loam, dark brown (7.5YR 3/2)

moist; moderate fine and medium subangular blocky structure; slightly hard, very

friable; common very fine and fine roots throughout horizon; common irregular

wormcasts; many very fine and few fine constricted tubular pores; neutral; clear

smooth boundary. (3 to 8 inches thick)

Bw—8 to 14 inches; brown (7.5YR 4/4) very fine sandy loam, dark brown (7.5YR 3/4)

moist; moderate fine and medium subangular blocky structure; slightly hard, very

friable; common very fine and fine roots throughout horizon; common irregular

wormcasts; common very fine constricted tubular pores; 10 percent pebbles of

sandstone; noncalcareous having a yellowish red (5YR 5/6) weathering rind

1

/4 inch to 1/2 inch thick, interior is strong brown (7.5YR 5/6); neutral; abrupt wavy

boundary. (3 to 13 inches thick)

Cr—14 to 20 inches; 75 percent strong brown (7.5YR 5/6) and 25 percent yellowish

red (5YR 5/6) weathered bedrock, 75 percent strong brown (7.5YR 4/6) and 25

percent yellowish red (5YR 4/6) moist; few very fine and fine roots in cracks;

neutral.

Range in Characteristics

Thickness of the mollic epipedon: 7 inches or more

Thickness of the solum: 10 to 20 inches

Depth to bedrock: 10 to 20 inches

Content and size of coarse fragments: 0 to 30 percent, by volume, sandstone

fragments (about 0 to 10 percent are fragments less than 76 mm in diameter and

0 to 20 percent are fragments more than 76 mm in diameter)

A and BA horizons:

Color—hue of 2.5YR to 7.5YR, value of 4 or 5, and chroma of 2 or 3

Texture—loam, silt loam, very fine sandy loam, or fine sandy loam or their stony

counterparts
544 Soil Survey

Reaction—moderately acid to slightly alkaline

Clay content—10 to 25 percent

Bw horizon:

Color—hue of 2.5YR to 7.5YR, value of 4 to 6, and chroma of 2 to 6

Texture—loam, silt loam, very fine sandy loam, or fine sandy loam or their stony

counterparts

Reaction—moderately acid to slightly alkaline

Clay content—10 to 25 percent

Cr horizon:

Color—hue of 2.5YR or 5YR, value of 4 to 6, and chroma of 4 to 8

Texture—rippable sandstone that is interbedded with clay, siltstone, or sandy shale

Reaction—moderately acid to slightly alkaline

Masham Series

Major land resource area: Central Rolling Red Prairies (80A)

Depth class: Shallow

Drainage class: Well drained

Parent material and geologic age: Material weathered from shale of Permian age

Physiographic region: Interior Lowlands

Physiographic province: Central Lowland

Physiographic sub-province: Osage Plain

Landscape: Upland

Landform: Hills

Landform position: Shoulder and backslope

Slope range: 1 to 45 percent

Slope shape: Convex-linear, linear-concave, or linear-convex

Elevation range: 700 to 1,500 feet

Mean annual precipitation: 26 to 40 inches

Mean annual air temperature: 58 to 64 degrees F

Frost-free days: 200 to 230

Thornthwaite PE index: 44 to 64

Taxonomic class: Clayey, mixed, active, thermic, shallow Udic Haplustepts

Associated Soils

• Coyle, Grainola, and Renfrow soils which have an argillic horizon and have a solum

more than 20 inches thick; commonly on slopes above the Masham soils

• Ironmound and Lucien soils which are underlain by sandstone at a depth of less

than 20 inches and have less than 35 percent clay in the control section; commonly

on ridgetops above the Masham soils

• Highview soils which occur over gray Permian shales; in landscape positions similar

to those of the Masham soils

• Piedmont and Renthin soils which have a mollic epipedon; typically on shoulder

slopes

Typical Pedon

Masham silty clay loam; Payne County, Oklahoma; in rangeland, about 6 miles north

and 4 miles east of Stillwater, 500 feet west and 150 feet south of the northeast corner

of sec. 21, T. 20 N., R. 3 E. (Colors are for dry soil unless otherwise indicated.)

A—0 to 5 inches; reddish brown (2.5YR 4/4) silty clay loam, dark reddish brown

(2.5YR 3/4) moist; strong very fine subangular blocky structure; hard, firm; many
Logan County, Oklahoma 545

fine roots; calcareous; moderately alkaline; gradual smooth boundary. (3 to 9

inches thick)

Bkw—5 to 16 inches; reddish brown (2.5YR 5/4) silty clay, reddish brown (2.5YR 4/4)

moist; moderate medium and fine subangular blocky structure; hard, firm; few

round calcium carbonate concretions 10 to 50 mm in diameter; many pressure

faces; calcareous; moderately alkaline; diffuse wavy boundary. (5 to 17 inches

thick)

Cr—16 to 40 inches; reddish brown (2.5YR 5/4) weathered silty shale, reddish brown

(2.5YR 4/4) moist; massive; extremely hard, firm; few fine roots between shale

fragments; calcareous; moderately alkaline.

Range in Characteristics

Thickness of the solum: 10 to 20 inches

Depth to bedrock: 10 to 20 inches

Reaction: Moderately alkaline throughout the profile; the A horizon is noncalcareous in

some pedons

Content and size of coarse fragments on the surface: 0 to 75 percent, by volume,

rounded fragments of limestone, sandstone, hematite, and hard pitted calcium

carbonate concretions 2 to 76 mm in diameter

A or AB horizon:

Color—hue of 2.5YR or 5YR, value of 4 or 5 (dry) and 3 or 4 (moist), and chroma

of 4 to 6

Texture—silty clay loam, clay loam, silty clay, or clay

Clay content—35 to 60 percent

Content and size of coarse fragments—0 to 15 percent, by volume, rounded

fragments of sandstone, ironstone, and calcium carbonate 2 to 76 mm in

diameter

Bw or Bkw horizon:

Color—hue of 10R to 5YR, value of 4 or 5 (dry) and 3 or 4 (moist), and chroma of

3 to 6 (dry or moist)

Texture—silty clay loam, silty clay, or clay

Clay content—35 to 60 percent

Content and size of coarse fragments—1 to 5 percent, by volume, rounded

calcium carbonate concretions less than 76 mm in diameter

Cr horizon:

Color—hue of 10R or 2.5YR, value of 3 to 5 (dry) and 3 or 4 (moist), and chroma

of 2 to 6 (dry or moist)

Texture—weathered shale

Miller Series

Major land resource area: Central Rolling Red Prairies (80A)

Depth class: Very deep

Drainage class: Moderately well drained

Parent material and geologic age: Material weathered from clayey alluvium of

Pleistocene age

Physiographic region: Interior Lowlands

Physiographic province: Central Lowland

Physiographic sub-province: Osage Plain

Landscape: Valley

Landform: Low flood plain

Slope range: 0 to 1 percent
546 Soil Survey

Slope shape: Linear-linear or linear-concave

Elevation range: 800 to 1,300 feet

Mean annual precipitation: 26 to 40 inches

Mean annual air temperature: 58 to 64 degrees F

Frost-free days: 200 to 230

Thornthwaite PE index: 44 to 64

Taxonomic class: Fine, mixed, superactive, thermic Udertic Haplustolls

Associated Soils

• Gaddy, Pulaski, and Yahola soils which do not have a mollic epipedon and have less

than 18 percent clay in the textural control section

• Ashport and Port soils which have less than 35 percent clay in the textural control

section

Typical Pedon

Miller clay; Cotton County, Oklahoma; in a cultivated area, about 4 miles west of

Cookietown, 400 feet north and 500 feet east of the southwest corner of sec. 24,

T. 3 S., R. 13 W. (Colors are for dry soil unless otherwise stated.)

Ap—0 to 7 inches; reddish brown (5YR 5/3) clay, dark reddish brown (5YR 3/3) moist;

weak medium granular structure; slightly hard, friable; many fine roots; few fine

and medium pores; calcareous; moderately alkaline; clear smooth boundary. (0 to

9 inches thick)

A—7 to 14 inches; reddish brown (5YR 4/3) clay, dark reddish brown (5YR 3/3) moist;

moderate fine blocky structure; hard, firm; common fine roots; few fine and

medium pores; calcareous; moderately alkaline; clear smooth boundary. (5 to 22

inches thick)

Bw—14 to 35 inches; reddish brown (5YR 4/4) clay, dark reddish brown (5YR 3/4)

moist; moderate medium blocky structure; very hard, very firm; few fine roots; few

fine pores; shiny pressure faces on faces of peds; few medium slickensides that do

not intersect; common vertical cracks filled with material from above; few fine soft

masses and concretions of calcium carbonate; calcareous; moderately alkaline;

gradual smooth boundary. (10 to 40 inches thick)

Ab—35 to 60 inches; dark reddish gray (5YR 4/2) clay, dark reddish brown (5YR 3/2)

moist; moderate medium blocky structure; very hard, very firm; few fine roots; few

fine pores; shiny faces on faces of some peds; few fine slickensides that do not

intersect; few fine soft masses and concretions of calcium carbonate; calcareous;

moderately alkaline.

Range in Characteristics

Thickness of the solum: 30 to more than 60 inches

Depth to carbonates: The profile is calcareous throughout the 10- to 40-inch control

section and has soft powdery lime within a depth of 30 inches

Other features: Cracks more than 1 cm wide extend from the surface to a depth of

about 30 inches during some season in most years

A horizon:

Color—hue of 5YR or 7.5YR, value of 2 to 5, and chroma of 2 or 3

Texture—clay, silty clay, clay loam, or silty clay loam

Reaction—slightly alkaline or moderately alkaline

Clay content—35 to 50 percent

Bw horizon:

Color—hue of 2.5 to 7.5YR, value of 3 to 5, and chroma of 2 to 6

Texture—clay, silty clay, clay loam, or silty clay loam
Logan County, Oklahoma 547

Reaction—slightly alkaline or moderately alkaline

Clay content—35 to 60 percent

Ab horizon (if it occurs):

Color—hue of 2.5YR to 7.5YR, value of 3 to 5, and chroma of 2 to 6

Texture—silt loam to clay

Reaction—slightly alkaline or moderately alkaline

Clay content—25 to 50 percent

C horizon (if it occurs):

Color—hue of 2.5YR to 7.5YR, value of 3 to 5, and chroma of 2 to 6

Texture—clay, silty clay, clay loam, silty clay loam, or silt loam

Reaction—slightly alkaline or moderately alkaline

Clay content—25 to 60 percent

Minco Series

Major land resource area: Central Rolling Red Plains (80A)

Depth class: Very deep

Drainage class: Well drained

Parent material and geologic age: Material weathered from loamy eolian deposits of

Pleistocene age

Physiographic region: Interior Lowlands

Physiographic province: Central Lowland

Physiographic sub-province: Osage Plain

Primary landscape: Valley

Secondary landscape: Terrace

Landform: Stream terrace

Landform position: Tread and riser

Slope range: 0 to 30 percent

Slope shape: Linear-convex, convex-linear, or linear-linear

Elevation range: 700 to 1,500 feet

Mean annual precipitation: 26 to 40 inches

Mean annual air temperature: 58 to 64 degrees F

Frost-free days: 190 to 230

Thornthwaite PE index: 44 to 64

Taxonomic class: Coarse-silty, mixed, superactive, thermic Udic Haplustolls

Associated Soils

• Grant, Norge, and Teller soils which have an argillic horizon with a clay content of

more than 18 percent; in the higher positions

• Pond Creek soils which have a mollic epipedon more than 20 inches thick and have

an argillic horizon with a clay content of more than 18 percent; in the higher positions

• Dougherty and Konawa soils which have an argillic horizon but do not have a mollic

epipedon; in positions similar to or slightly higher than those of the Minco soils

• Reinach soils which have a mollic epipedon more than 20 inches thick; on low

terraces of flood plains

Typical Pedon

Minco silt loam; Grady County, Oklahoma; in a cultivated area, about 1 3

/4 miles north

of Tuttle, 1,035 feet south and 300 feet east of the northwest corner of sec. 26,

T. 10 N., R. 6 W. (Colors are for dry soil unless otherwise indicated.)

Ap—0 to 7 inches; brown (7.5YR 4/2) silt loam, dark brown (7.5YR 3/2) moist; weak
548 Soil Survey

medium granular structure; slightly hard, very friable; many fine roots; moderately

acid; abrupt smooth boundary. (0 to 10 inches thick)

A—7 to 15 inches; brown (7.5YR 4/3) silt loam, dark brown (7.5YR 3/3) moist;

moderate medium granular structure; slightly hard, very friable; many fine roots;

slightly acid; gradual smooth boundary. (6 to 12 inches thick)

Bw1—15 to 24 inches; reddish brown (5YR 5/4) silt loam, reddish brown (5YR 4/4)

moist; moderate medium prismatic structure; slightly hard, friable; common fine

roots; slightly alkaline; gradual smooth boundary. (8 to 14 inches thick)

Bw2—24 to 38 inches; light reddish brown (5YR 6/4) silt loam, reddish brown (5YR

5/4) moist; moderate medium prismatic structure; slightly hard, friable; common

fine roots; slightly alkaline; gradual smooth boundary. (10 to 20 inches thick)

Bw3—38 to 55 inches; red (2.5YR 5/6) silt loam, red (2.5YR 4/6) moist; weak coarse

prismatic structure; slightly hard, friable; few fine roots; moderately alkaline;

gradual smooth boundary. (0 to 20 inches thick)

C—55 to 72 inches; red (2.5YR 5/8) silt loam, red (2.5YR 4/8) moist; massive; slightly

hard, friable; few fine roots; few films of secondary carbonates; calcareous;

moderately alkaline.

Range in Characteristics

Thickness of the solum: 25 to more than 60 inches

Depth to bedrock: More than 72 inches

Other features: Clay content is 8 to 18 percent throughout the profile

A and Ap horizons:

Color—hue of 5YR to 10YR, value of 4 or 5, and chroma of 2 or 3

Texture—loam, silt loam, or very fine sandy loam

Reaction—moderately acid to neutral

Bw horizon:

Color—hue of 2.5YR to 7.5YR, value of 4 to 6, and chroma of 3 to 6

Texture—loam, silt loam, or very fine sandy loam

Reaction—moderately acid to moderately alkaline

BC horizon (if it occurs):

Color—hue of 2.5YR to 7.5YR, value of 4 to 6, and chroma of 3 to 8

Texture—loam, silt loam, or very fine sandy loam

Reaction—slightly acid to moderately alkaline

C horizon:

Color—hue of 2.5YR to 7.5YR, value of 4 to 6, and chroma of 4 to 8

Texture—loam, silt loam, or very fine sandy loam

Reaction—slightly acid to moderately alkaline

Mulhall Series

Major land resource area: Central Rolling Red Prairies (80A)

Depth class: Very deep

Drainage class: Well drained

Parent material and geologic age: Material formed in colluvium and underlain by silty

shale of Permian age

Physiographic region: Interior Lowlands

Physiographic province: Central Lowland

Physiographic sub-province: Osage Plain

Landscape: Upland

Landform: Hills

Landform position: Footslope
Logan County, Oklahoma 549

Slope range: 3 to 8 percent

Slope shape: Concave-linear

Elevation range: 1,000 to 1,300 feet

Mean annual precipitation: 26 to 40 inches

Mean annual air temperature: 58 to 64 degrees F

Frost-free days: 200 to 230

Thornthwaite PE index: 44 to 64

Taxonomic class: Fine-loamy, siliceous, active, thermic Udic Paleustolls

Associated Soils

• Chickasha and Zaneis soils which are on landscapes similar to those of the Mulhall

soils

• Grainola soils which have a solum less than 40 inches thick, do not have a mollic

epipedon, and have a fine control section; on landscapes that are slightly higher

than those of the Mulhall soils

• Lucien soils which have a solum less than 20 inches thick, do not have an argillic

horizon, and have mixed mineralogy; typically on ridgetops

• Renfrow soils which have a fine control section; on landscapes that are slightly

higher than those of the Mulhall soils

Typical Pedon

Mulhall loam (fig. 24); Payne County, Oklahoma; in rangeland, about 6 miles south and

3 miles west of Stillwater, 200 feet north and 1,600 feet west of the southeast corner of

sec. 17, T. 18 N., R. 2 E. (Colors are for dry soil unless otherwise indicated.)

A—0 to 13 inches; reddish brown (5YR 4/3) loam, dark reddish brown (5YR 3/3) moist;

weak fine granular structure; slightly hard, friable; many fine roots; neutral; clear

smooth boundary. (6 to 14 inches thick)

BA—13 to 17 inches; reddish brown (5YR 4/4) loam, dark reddish brown (5YR 3/4)

moist; weak medium granular structure; slightly hard, friable; many fine roots;

slightly acid; clear smooth boundary. (4 to 14 inches thick)

Bt1—17 to 31 inches; yellowish red (5YR 5/6) clay loam, yellowish red (5YR 4/6)

moist; moderate medium subangular blocky structure; hard, firm; thin nearly

continuous clay films on faces of peds; common fine roots; few rounded sandstone

fragments less than 3 inches in diameter; slightly acid; gradual smooth boundary.

(7 to 22 inches thick)

Bt2—31 to 41 inches; red (2.5YR 5/6) clay loam, red (2.5YR 4/6) moist; common fine

distinct strong brown and reddish brown mottles; moderate medium prismatic

structure; hard, firm; thin nearly continuous clay films on faces of peds; common

fine roots; slightly acid; gradual wavy boundary. (10 to 26 inches thick)

Bt3—41 to 70 inches; red (2.5YR 5/6) clay loam, red (2.5YR 4/6) moist; weak coarse

prismatic structure; hard, firm; thin patchy clay films on faces of peds; few fine

roots; about 10 percent of the vertical ped faces are coated with clean sand grains;

many coarse prominent pinkish gray (5YR 6/2) and light reddish brown (5YR 6/3)

redoximorphic concentrations; neutral; clear wavy boundary. (8 to 32 inches thick)

2Cr—70 to 80 inches; red (10R 5/6) weakly laminated silty shale, red (10R 4/6) moist;

calcareous; moderately alkaline.

Range in Characteristics

Thickness of the solum: More than 60 inches

A horizon:

Color—hue of 5YR to 10YR, value of 4 or 5, and chroma of 2 or 3

Texture—loam or fine sandy loam
550 Soil Survey

Reaction—moderately acid to slightly alkaline

Clay content—12 to 26 percent

BA horizon:

Color—hue of 5YR or 7.5YR, value of 4 or 5, and chroma of 2 to 4

Texture—loam, sandy clay loam, or clay loam

Reaction—slightly acid or neutral

Clay content—18 to 35 percent

Figure 24.—Profile of Mulhall loam. Multiply the scale on the

left by 10 for centimeters.
Logan County, Oklahoma 551

Bt1 horizon:

Color—hue of 5YR or 7.5YR, value of 4 to 6, and chroma of 2 to 8

Texture—clay loam or sandy clay loam

Reaction—slightly acid to slightly alkaline

Clay content—20 to 35 percent

Content and size of coarse fragments—0 to 10 percent, by volume, rounded

sandstone fragments less than 76 mm in diameter

Bt2 horizon:

Color—hue of 2.5YR to 7.5YR, value of 5 or 6, and chroma of 4 to 8

Texture—clay loam or sandy clay loam

Reaction—slightly acid to moderately alkaline

Clay content—20 to 35 percent

Content and size of coarse fragments—0 to 10 percent, by volume, rounded

sandstone fragments less than 76 mm in diameter

Bt3 horizon:

Color—hue of 2.5YR to 7.5YR, value of 4 to 6, and chroma of 4 to 8

Texture—clay loam, sandy clay loam, gravelly clay loam, or gravelly sandy clay

loam

Reaction—neutral to moderately alkaline

Clay content—20 to 35 percent

Redoximorphic features—red, brown, or gray concentrations and depletions

Content and size of coarse fragments—0 to 20 percent, by volume, dark

concretions less than 76 mm in diameter

Bt4 horizon (if it occurs):

Color—hue of 2.5YR to 7.5YR, value of 4 to 6, and chroma of 4 to 8

Texture—clay loam, sandy clay loam, gravelly clay loam, or gravelly sandy clay

loam

Reaction—neutral to moderately alkaline

Clay content—20 to 35 percent

Redoximorphic features—red, brown, or gray concentrations and depletions

Content and size of coarse fragments—0 to 20 percent, by volume, dark

concretions less than 76 mm in diameter

BC horizon (if it occurs):

Color—hue of 2.5YR or 5YR, value of 4 or 5, and chroma of 4 to 8

Texture—loam or clay loam

Reaction—neutral to moderately alkaline

Clay content—20 to 35 percent

Redoximorphic features—red, brown, or gray concentrations and depletions

2Cr horizon:

Color—red

Texture—weakly consolidated silty shale

Hardness—material is nonparalithic; excavation difficulty is low or moderate

Other features—fractures more than 10 cm apart; horizon is root restrictive;

horizon material slakes in water within 15 hours

Navina Series

Major land resource area: Central Rolling Red Prairies (80A)

Depth class: Very deep

Drainage class: Well drained

Parent material and geologic age: Loamy alluvium of Pleistocene age
552 Soil Survey

Physiographic region: Interior Lowlands

Physiographic province: Central Lowland

Physiographic sub-province: Osage Plain

Landscape: Upland

Landform: Terrace

Landform position: Summit

Slope range: 0 to 5 percent

Slope shape: Linear-linear

Elevation range: 900 to 1,300 feet

Mean annual precipitation: 26 to 38 inches

Mean annual air temperature: 58 to 64 degrees F

Frost-free days: 200 to 230

Thornthwaite PE index: 44 to 64

Taxonomic class: Fine-loamy, mixed, active, thermic Udic Argiustolls

Associated Soils

• Dougherty and Konawa soils which do not have a mollic epipedon; on landscapes

that are slightly lower than those of the Navina soils

• Vanoss soils which are on landscapes that are slightly higher than those of the

Navina soils

• Pond Creek soils which have a mollic epipedon more than 20 inches thick and have

a fine-silty control section; on landscapes that are slightly higher than those of the

Navina soils

• Teller soils which are on landscapes similar to those of the Navina soils

Typical Pedon

Navina loam; Payne County, Oklahoma; in a cultivated area, about 9 miles west and 1

mile north of Perkins, 1,200 feet east and 300 feet north of the southwest corner of

sec. 27, T. 18 N., R. 1 E. (Colors are for dry soil unless otherwise indicated.)

Ap—0 to 10 inches; brown (7.5YR 4/2) loam, dark brown (7.5YR 3/2) moist; weak fine

granular structure; slightly hard, friable; slightly acid; clear smooth boundary. (6 to

19 inches thick)

BA—10 to 14 inches; brown (7.5YR 4/2) loam, dark brown (7.5YR 3/2) moist; weak

fine subangular blocky structure; slightly hard, very friable; neutral; clear smooth

boundary. (3 to 11 inches thick)

Bt1—14 to 24 inches; brown (7.5YR 5/4) loam, brown (7.5YR 4/4) moist; moderate

medium subangular blocky structure; slightly hard, friable; thin nearly continuous

clay films on faces of peds; neutral; clear smooth boundary. (6 to 32 inches thick)

Bt2—24 to 31 inches; brown (7.5YR 5/4) sandy clay loam, brown (7.5YR 4/4) moist;

moderate medium and coarse subangular blocky structure; hard, firm; thin nearly

continuous clay films on faces of peds; neutral; clear smooth boundary. (0 to 16

inches thick)

Bt3—31 to 40 inches; reddish yellow (7.5YR 6/8) fine sandy loam, strong brown

(7.5YR 5/8) moist; moderate medium subangular blocky structure; slightly hard,

friable; thin nearly continuous clay films on faces of peds; neutral; gradual smooth

boundary. (0 to 10 inches thick)

BC—40 to 60 inches; reddish yellow (7.5YR 6/8) fine sandy loam, strong brown

(7.5YR 5/8) moist; weak coarse prismatic structure; slightly hard, friable; slightly

alkaline; gradual smooth boundary. (12 to 34 inches thick)

C1—60 to 75 inches; reddish yellow (7.5YR 7/6) loamy fine sand, reddish yellow

(7.5YR 6/6) moist; massive; slightly hard, friable; slightly alkaline; gradual smooth

boundary.

C2—75 to 80 inches; reddish yellow (7.5YR 6/8) fine sandy loam, strong brown (7.5YR

5/8) moist; massive; slightly hard, friable; slightly alkaline.
Logan County, Oklahoma 553

Range in Characteristics

Thickness of the mollic epipedon: Less than 20 inches

Thickness of the solum: 40 to 80 inches

Depth to bedrock: More than 72 inches

A or Ap horizon:

Color—hue of 7.5YR or 10YR, value of 4 or 5, and chroma of 2 or 3

Texture—silt loam, loam, or fine sandy loam

Reaction—moderately acid to slightly alkaline

Clay content—8 to 26 percent

BA horizon:

Color—hue of 7.5YR or 10YR, value of 4 or 5, and chroma of 2 to 4

Texture—loam, fine sandy loam, or clay loam

Reaction—moderately acid to slightly alkaline

Clay content—10 to 35 percent

Bt1 horizon:

Color—hue of 7.5YR or 10YR, value of 4 or 5, and chroma of 2 to 4

Texture—loam, sandy clay loam, fine sandy loam, or clay loam

Reaction—moderately acid to slightly alkaline

Clay content—10 to 35 percent

Bt2 horizon:

Color—hue of 7.5YR or 10YR, value of 5 or 6, and chroma of 3 to 6

Texture—clay loam, sandy clay loam, or fine sandy loam

Reaction—neutral or slightly alkaline

Clay content—10 to 35 percent

Redoximorphic features—brown, yellow, or red concentrations

Bt3 horizon:

Color—hue of 7.5YR or 10YR, value of 5 or 6, and chroma of 3 to 6

Texture—fine sandy loam, clay loam, or sandy clay loam

Reaction—neutral or slightly alkaline

Clay content—10 to 35 percent

Redoximorphic features—brown, yellow, or red concentrations

BC horizon:

Color—hue of 5YR to 10YR, value of 5 to 8, and chroma of 4 to 8

Texture—loam, fine sandy loam, or sandy clay loam

Reaction—neutral or slightly alkaline

Clay content—10 to 35 percent

Redoximorphic features—brown, yellow, or red concentrations

C horizon:

Color—hue of 5YR to 10YR, value of 5 to 8, and chroma of 4 to 8

Texture—fine sandy loam, loam, or loamy fine sand

Reaction—neutral or slightly alkaline

Clay content—2 to 15 percent

Redoximorphic features—brown, yellow, or red concentrations

Newalla Series

Major land resource area: Northern Cross Timbers (84A)

Depth class: Deep

Drainage class: Moderately well drained

Parent material and geologic age: Material weathered from shale of Permian age
554 Soil Survey

Physiographic region: Interior Lowlands

Physiographic province: Central Lowland

Physiographic sub-province: Osage Plain

Landscape: Upland

Landform: Hills

Landform position: Backslope

Slope range: 1 to 25 percent

Slope shape: Convex-convex or linear-convex

Elevation range: 800 to 1,200 feet

Mean annual precipitation: 30 to 40 inches

Mean annual air temperature: 58 to 62 degrees F

Frost-free days: 200 to 230

Thornthwaite PE index: 44 to 64

Taxonomic class: Fine-loamy over clayey, siliceous, superactive, thermic Udic

Haplustalfs

Associated Soils

• Darnell and Darsil soils which do not have an argillic horizon and are less than 20

inches thick over sandstone; mainly on ridge crests

• Grainola soils which are on side slopes of prairie uplands

• Littleaxe soils which have a fine-loamy control section; on ridge crests

• Harrah soils which have a fine-loamy control section and have a solum more than 72

inches thick; on the lower footslopes and side slopes

• Stephenville soils which have a fine-loamy control section and have a solum that is

20 to 40 inches thick over sandstone; on landscapes similar to those of the Newalla

soils

• Renfrow soils which have a solum more than 60 inches thick; on the higher prairie

uplands

Typical Pedon

Newalla fine sandy loam; Cleveland County, Oklahoma; on a 7 percent slightly convex

southeast-facing upland side slope, in a savannah of post oak and blackjack oak,

about 1 mile south and 7.4 miles east of Slaughterville, 1,900 feet east and 150 feet

south of the northwest corner of sec. 21, T. 7 N., R. 1 E. (Colors are for dry soil unless

otherwise stated.)

A—0 to 3 inches; brown (7.5YR 4/2) fine sandy loam, dark brown (7.5YR 3/2) moist;

moderate fine granular structure; slightly hard, very friable; many very fine and fine

and common medium roots; strongly acid; clear smooth boundary. (2 to 9 inches

thick)

E—3 to 6 inches; light brown (7.5YR 6/4) fine sandy loam, brown (7.5YR 5/4) moist;

weak medium granular structure; slightly hard, very friable; many very fine and fine

and common medium roots; very strongly acid; abrupt wavy boundary. (0 to 7

inches thick)

Bt—6 to 10 inches; red (2.5YR 5/6) sandy clay loam, red (2.5YR 4/6) moist; moderate

medium subangular blocky structure; hard, firm; common very fine, fine, and

medium and few coarse roots; patchy clay films on faces of peds; many faces of

peds coated with light brown (7.5YR 6/4) fine sandy loam; very strongly acid; clear

wavy boundary. (3 to 15 inches thick)

2Bt—10 to 16 inches; red (2.5YR 4/6) clay, dark red (2.5YR 3/6) moist; moderate fine

and medium blocky structure; very hard, very firm; common very fine and fine and

few medium and coarse roots; nearly continuous clay films on faces of peds; very

strongly acid; gradual wavy boundary. (4 to 23 inches thick)

2Btss—16 to 30 inches; red (2.5YR 4/6) clay, dark red (2.5YR 3/6) moist; weak

medium subangular blocky structure; extremely hard, extremely firm; common
Logan County, Oklahoma 555

very fine and fine and few medium and coarse roots; few nonintersecting

slickensides; nearly continuous clay films on faces of peds; few fine dark

concretions; moderately acid; gradual wavy boundary. (0 to 26 inches thick)

2Btkss—30 to 42 inches; red (2.5YR 4/6) clay, dark red (2.5YR 3/6) moist; weak

medium subangular blocky and blocky structure; extremely hard, extremely firm;

few very fine, fine, medium, and coarse roots; few nonintersecting slickensides;

nearly continuous clay films on faces of peds; few fine dark concretions; common

fine and medium soft masses of calcium carbonate; slight effervescence; slightly

alkaline; gradual wavy boundary. (0 to 28 inches thick)

2B ́tss—42 to 51 inches; red (2.5YR 4/6) clay, dark red (2.5YR 3/6) moist; weak

medium and coarse blocky structure; extremely hard, extremely firm; few very fine

and fine roots; common nonintersecting slickensides; nearly continuous clay films

on faces of peds; few fine dark concretions; slight effervescence; moderately

alkaline; gradual wavy boundary.

2BC—51 to 58 inches; red (2.5YR 4/6) gravelly silty clay, dark red (2.5YR 3/6) moist;

weak medium subangular blocky structure; very hard, very firm; few very fine

roots; patchy clay films on faces of peds; common fine distinct yellowish red (5YR

4/6) redoximorphic features; 25 percent, by volume, shale fragments 2 to 76 mm in

diameter; slight effervescence; slightly alkaline; clear wavy boundary. (0 to 18

inches thick)

2Cr—58 to 80 inches; red (2.5YR 4/6) weakly laminated, soft shale; slightly alkaline.

Range in Characteristics

Thickness of the solum: 40 to 60 inches

Depth to bedrock: 40 to 60 inches

A or Ap horizon:

Color—hue of 5YR to 10YR, value of 4 to 6, and chroma of 2 to 6

Texture—typically fine sandy loam; loam or sandy clay loam in some eroded

pedons

Reaction—strongly acid to neutral

Clay content—7 to 25 percent

E horizon:

Color—hue of 5YR to 10YR, value of 4 to 7, and chroma of 3 to 6

Texture—fine sandy loam

Reaction—very strongly acid to neutral

Clay content—7 to 17 percent

Bt horizon:

Color—hue of 2.5YR to 7.5YR, value of 5 or 6, and chroma of 3 to 8

Texture—sandy clay loam or clay loam

Reaction—very strongly acid to neutral

Clay content—20 to 35 percent

2Bt and 2Btss horizons:

Color—hue of 10R to 5YR, value of 4 to 6, and chroma of 4 to 8

Texture—silty clay or clay

Reaction—very strongly acid to moderately alkaline

Clay content—40 to 60 percent

Redoximorphic features (in some pedons)—red, yellow, or brown concentrations

2Btkss and 2B ́tss horizons:

Color—hue of 10R to 5YR, value of 4 to 6, and chroma of 4 to 8

Texture—clay or silty clay

Reaction—neutral to moderately alkaline
556 Soil Survey

Clay content—40 to 60 percent

Redoximorphic features (in some pedons)—red, yellow, or brown concentrations

2BC or 2BCk horizon:

Color—hue of 10R to 5YR, value of 4 to 6, and chroma of 4 to 8

Texture—sandy clay, silty clay, gravelly silty clay, or very gravelly silty clay

Reaction—slightly alkaline or moderately alkaline

Clay content—40 to 60 percent

Redoximorphic features (in some pedons)—red, yellow, or brown concentrations

Other features—0 to 10 percent, by volume, soft accumulations of calcium

carbonate

2Cr horizon:

Color—hue of 10R to 5YR, value of 4 to 6, and chroma of 2 to 6

Reaction—slightly alkaline or moderately alkaline

Norge Series

Major land resource area: Central Rolling Red Prairies (80A)

Depth class: Very deep

Drainage class: Well drained

Parent material and geologic age: Loamy alluvium of Pleistocene age

Physiographic region: Interior Lowlands

Physiographic province: Central Lowland

Physiographic sub-province: Osage Plain

Landscape: Upland

Landform: Terrace

Landform position: Tread and riser

Slope range: 0 to 8 percent

Slope shape: Linear-linear/convex

Elevation range: 900 to 1,300 feet

Mean annual precipitation: 26 to 40 inches

Mean annual air temperature: 58 to 64 degrees F

Frost-free days: 200 to 230

Thornthwaite PE index: 44 to 64

Taxonomic class: Fine-silty, mixed, active, thermic Udic Paleustolls

Associated Soils

• Bethany soils which have a fine control section; on the same landscapes as the

Norge soils or higher

• Grant soils which decrease in clay content by more than 20 percent within a depth of

60 inches and have a solum that is less than 60 inches thick; on side slopes of

nearby landscapes

• Navina, Teller, and Vanoss soils which decrease in clay content by more than 20

percent within a depth of 60 inches; on the lower terraces or on the same terrace as

the Norge soils but nearer to the stream

• Pond Creek soils which have a mollic epipedon that is more than 20 inches thick and

decrease in clay content within a depth of 60 inches; on the lower terraces or on the

same terrace as the Norge soils but nearer to the stream

Typical Pedon

Norge silt loam; Pawnee County, Oklahoma; in a cultivated area, about 8 miles

northeast of Pawnee, 725 feet east and 150 feet south of the northwest corner of

sec. 9, T. 22 N., R. 6 E. (Colors are for dry soil unless otherwise stated.)
Logan County, Oklahoma 557

A—0 to 12 inches; dark brown (7.5YR 4/2) silt loam, dark brown (7.5YR 3/2) moist;

moderate fine granular structure; slightly hard, friable; many fine roots; moderately

acid; gradual smooth boundary. (6 to 16 inches thick)

BA—12 to 18 inches; reddish brown (5YR 4/3) silty clay loam, dark reddish brown

(5YR 3/3) moist; moderate medium granular structure; hard, friable; many fine

roots; moderately acid; gradual smooth boundary. (0 to 10 inches thick)

Bt1—18 to 36 inches; reddish brown (5YR 5/4) silty clay loam, reddish brown (5YR

4/4) moist; moderate fine subangular blocky structure; very hard, firm; common

fine roots; nearly continuous clay films on faces of peds; moderately acid; gradual

smooth boundary. (9 to 25 inches thick)

Bt2—36 to 48 inches; red (2.5YR 5/6) silty clay loam, red (2.5YR 4/6) moist; moderate

medium subangular blocky structure; very hard, firm; common fine roots;

continuous clay films on faces of peds; slightly acid; gradual smooth boundary.

(9 to 37 inches thick)

Bt3—48 to 66 inches; red (2.5YR 5/8) silty clay loam, red (2.5YR 4/8) moist; weak

coarse subangular blocky structure; hard, firm; few fine roots; discontinuous clay

films on faces of peds; slightly acid.

Range in Characteristics

Thickness of the mollic epipedon: 10 to 20 inches

Thickness of the solum: More than 60 inches

Depth to carbonates: More than 40 inches

A horizon:

Color—hue of 5YR to 10YR, value of 4 or 5, and chroma of 2 or 3

Texture—silt loam, loam, silty clay loam, or clay loam

Reaction—moderately acid to neutral

Clay content—15 to 35 percent

BA horizon:

Color—hue of 5YR to 10YR, value of 4 or 5, and chroma of 2 to 4

Texture—silt loam, loam, silty clay loam, or clay loam

Reaction—moderately acid to neutral

Clay content—18 to 35 percent

Bt1 horizon:

Color—hue of 2.5YR or 5YR, value of 4 or 5, and chroma of 4 to 6

Texture—silty clay loam or clay loam

Reaction—moderately acid to slightly alkaline

Clay content—27 to 35 percent

Bt2 horizon:

Color—hue of 2.5YR or 5YR, value of 4 or 5, and chroma of 4 to 6

Texture—silty clay loam or clay loam

Reaction—moderately acid to slightly alkaline

Clay content—27 to 35 percent

Bt3 horizon:

Color—hue of 2.5YR or 5YR, value of 4 or 5, and chroma of 4 to 8

Redoximorphic features (in some pedons)—concentrations and depletions in

shades of gray, yellow, or brown

Texture—silty clay loam, silty clay, or clay loam

Reaction—slightly acid to moderately alkaline

Clay content—27 to 50 percent

Bt4 horizon (if it occurs):

Color—hue of 2.5YR or 5YR, value of 4 to 6, and chroma of 4 to 8
558 Soil Survey

Redoximorphic features (in some pedons)—concentrations and depletions in

shades of gray, yellow, or brown

Texture—silty clay loam, clay loam, or silty clay

Reaction—slightly acid to slightly alkaline

BC horizon (if it occurs):

Color—similar to the Bt4 horizon

Texture—similar to the Bt4 horizon

Reaction—neutral to moderately alkaline

Piedmont Series

Major land resource area: Central Rolling Red Prairies (80A)

Depth class: Moderately deep

Drainage class: Well drained

Parent material and geologic age: Material weathered from clayey and silty shale of

Permian age

Physiographic region: Interior Lowlands

Physiographic province: Central Lowland

Physiographic sub-province: Osage Plain

Landscape: Upland

Landform: Hills

Landform position: Shoulder and backslope

Slope range: 1 to 5 percent

Slope shape: Linear-convex or linear-linear

Elevation range: 700 to 1,600 feet

Mean annual precipitation: 28 to 38 inches

Mean annual air temperature: 59 to 63 degrees F

Frost-free days: 200 to 230

Thornthwaite PE index: 44 to 64

Taxonomic class: Fine, mixed, superactive, thermic Udertic Argiustolls

Associated Soils

• Renthin soils which are 40 to 60 inches deep; on landscapes similar to those of the

Piedmont soils but at the higher elevations

• Bethany and Kirkland soils which have a mollic epipedon more than 20 inches thick

and have an argillic horizon that does not decrease in clay content from the

maximum by more than 20 percent at a depth of 60 inches; in the higher positions

• Renfrow soils which have an argillic horizon that does not decrease in clay content

from the maximum by more than 20 percent at a depth of 60 inches; in the higher

positions

• Norge soils which have a fine-silty control section, have a solum more than 60

inches thick, and have an argillic horizon that does not decrease in clay content from

the maximum by more than 20 percent at a depth of 60 inches; in the lower positions

• Grainola soils which do not have a mollic epipedon and are calcareous; in the lower

positions

• Kingfisher soils which have a fine-silty control section; in landscape positions similar

to those of the Piedmont soils

• Grant soils which have a solum that is 40 to 60 inches thick and have a fine-silty

control section; on landscapes similar to those of the Piedmont soils

• Huska soils which do not have a mollic epipedon and have a natric horizon; on

landscapes similar to those of the Piedmont soils

• Lucien soils which have a solum that is 10 to 20 inches thick and have a loamy

control section; on landscapes similar to those of the Piedmont soils
Logan County, Oklahoma 559

• Zaneis soils which have a fine-loamy control section, have a solum that is 40 to 60

inches thick, and do not have secondary calcium carbonate accumulations; in the

higher positions

Typical Pedon

Piedmont silt loam; Oklahoma County, Oklahoma; in bermudagrass pasture, about 8

miles west and 3 3/4 miles north of Edmond, about 1,300 feet south and 2,000 feet

west of the northeast corner of sec. 9, T. 14 N., R. 4 W. (Colors are for dry soil unless

otherwise stated.)

Ap—0 to 4 inches; brown (7.5YR 5/3) silt loam, dark brown (7.5YR 3/3) moist;

moderate fine and medium platy structure parting to weak very fine granular; hard,

friable; many very fine and fine roots; common very fine and fine pores;

moderately acid; clear smooth boundary. (3 to 9 inches thick)

BA—4 to 8 inches; dark reddish gray (5YR 4/2) silty clay loam, dark reddish brown

(5YR 3/2) moist; weak medium platy structure parting to weak fine subangular

blocky; hard, friable; many very fine and fine roots; many very fine and fine pores;

light brown (7.5YR 6/3) silt coatings on faces of peds; slightly acid; clear smooth

boundary. (0 to 4 inches thick)

Btss—8 to 16 inches; reddish brown (5YR 4/3) silty clay, dark reddish brown (5YR 3/3)

moist; moderate medium prismatic structure parting to moderate medium blocky;

extremely hard, extremely firm; common very fine and fine roots; many very fine

and common fine pores; common nonintersecting slickensides; continuous clay

films on vertical and horizontal faces; common pressure faces; neutral; gradual

wavy boundary. (5 to 17 inches thick)

Btkss1—16 to 21 inches; reddish brown (5YR 5/3) silty clay, reddish brown (5YR 4/3)

moist; weak medium prismatic structure parting to moderate medium blocky;

extremely hard, extremely firm; common very fine and fine roots; common very

fine and fine pores; common slickensides; continuous clay films on vertical and

horizontal faces; common pressure faces; few fine and medium calcium carbonate

concretions; moderately alkaline; gradual wavy boundary. (0 to 17 inches thick)

Btkss2—21 to 30 inches; reddish brown (5YR 5/4) silty clay loam, reddish brown (5YR

4/4) moist; weak medium prismatic structure parting to weak medium blocky;

extremely hard, extremely firm; common very fine and few fine roots; common

very fine and fine pores; few slickensides; patchy clay films on faces of peds;

common coarse soft masses of calcium carbonate; few fine and medium calcium

carbonate concretions; violently effervescent; moderately alkaline; gradual wavy

boundary. (0 to 14 inches thick)

BCk—30 to 35 inches; yellowish red (5YR 5/6) silty clay loam, yellowish red (5YR 4/6)

moist; weak medium subangular blocky structure; very hard, very firm; few very

fine and fine roots; common very fine and fine pores; common fine threads and

medium soft masses of calcium carbonate; few black stains on faces of peds; 10

to 14 percent, by volume, red (2.5YR 5/6 and 5/8) soft shale fragments; violently

effervescent; moderately alkaline; clear wavy boundary. (0 to 5 inches thick)

Cr1—35 to 52 inches; red (2.5YR 5/6) clayey and silty soft shale, red (2.5YR 4/6)

moist; few very fine and fine roots in fractures; strongly effervescent; moderately

alkaline; gradual wavy boundary. (12 to 17 inches thick)

Cr2—52 to 59 inches; red (2.5YR 5/6) laminated siltstone, red (2.5YR 4/6) moist;

strongly effervescent; moderately alkaline.

Range in Characteristics

Thickness of the solum: 20 to 40 inches

Depth to bedrock: 20 to 40 inches

Depth to carbonates: 10 to 30 inches
560 Soil Survey

Other features: Cracks within 125 cm of the mineral soil surface that are 5 mm or more

wide and extend through a thickness of 30 cm or more for some time in most

years; slickensides or wedge-shaped aggregates in a layer 15 cm or more thick

that has its upper boundary within 125 cm of the mineral soil surface; linear

extensibility of 6.0 cm or more between the mineral soil surface and either a depth

of 100 cm or a paralithic contact

A or Ap horizon:

Color—hue of 2.5YR to 7.5YR, value of 4 or 5, and chroma of 2 or 3

Texture—silty loam, silty clay loam, or clay loam

Reaction—moderately acid to neutral

Clay content—18 to 40 percent

BA horizon (if it occurs):

Color—hue of 2.5YR or 5YR, value of 4 or 5, and chroma of 2 to 4

Texture—silty clay loam or clay loam

Reaction—moderately acid to slightly alkaline

Clay content—27 to 40 percent

Btss horizon:

Color—hue of 2.5YR or 5YR, value of 4 or 5, and chroma of 3 to 6

Texture—silty clay loam, silty clay, or clay

Reaction—neutral to moderately alkaline

Clay content—35 to 55 percent

Btkss1 horizon:

Color—hue of 2.5YR or 5YR, value of 4 or 5, and chroma of 4 to 6

Texture—silty clay loam, silty clay, or clay

Reaction—moderately alkaline

Clay content—35 to 55 percent

Btkss2 horizon:

Color—hue of 2.5YR to 5YR, value of 4 or 5, and chroma of 4 to 8

Texture—silty clay loam, silty clay, or clay

Reaction—moderately alkaline

Clay content—35 to 55 percent

BCk horizon:

Color—hue of 2.5YR or 5YR, value of 4 or 5, and chroma of 4 to 8

Texture—silty clay loam, silty clay, or clay

Reaction—moderately alkaline

Cr horizon:

Color—hue of 2.5YR, value of 4 to 6, and chroma of 6 to 8

Pulaski Series

Major land resource area: Cross Timbers (84A)

Depth class: Very deep

Drainage class: Well drained

Parent material and geologic age: Loamy alluvial sediments of Recent age

Physiographic region: Interior Lowlands

Physiographic province: Central Lowland

Physiographic sub-province: Osage Plain

Landscape: Valley

Landform: Low flood plain

Slope range: 0 to 3 percent
Logan County, Oklahoma 561

Slope shape: Linear-linear

Elevation range: 700 to 1,300 feet

Mean annual precipitation: 30 to 40 inches

Mean annual air temperature: 58 to 63 degrees F

Frost-free days: 200 to 230

Thornthwaite PE index: 44 to 64

Taxonomic class: Coarse-loamy, mixed, superactive, nonacid, thermic Udic

Ustifluvents

Associated Soils

• Cyril soils which have a mollic epipedon

• Gaddy soils which typically are on flood plains nearer to the stream channel of the

larger streams

• Gracemont soils which have an apparent water table within a depth of 20 to 40

inches and are calcareous throughout; typically on flood plains nearer to the stream

channel of the larger streams

• Gracemore soils which have an apparent water table within a depth of 20 to 40

inches, are calcareous throughout, and have a sandy control section; typically on

flood plains nearer to the stream channel of the larger streams

• Ashport and Port soils which have a mollic epipedon and a fine-silty textural control

section; at the slightly higher elevations

• Easpur soils which have a mollic epipedon and a fine-loamy textural control section;

at the slightly higher elevations

Typical Pedon

Pulaski fine sandy loam; Lincoln County, Oklahoma; in a cultivated area, about 6 miles

north and 1 mile east of Chandler, 1,135 feet north and 200 feet east of the southwest

corner of sec. 2, T. 15 N., R. 4 E. (Colors are for dry soil unless otherwise stated.)

Ap—0 to 7 inches; reddish brown (5YR 5/4) fine sandy loam, reddish brown (5YR 4/4)

moist; weak fine and very fine granular structure; soft, very friable; moderately

acid; clear smooth boundary. (6 to 12 inches thick)

A—7 to 19 inches; reddish brown (5YR 5/4) fine sandy loam, reddish brown (5YR 4/4)

moist; weak fine and very fine granular structure; slightly hard, very friable;

moderately acid; gradual smooth boundary. (4 to 20 inches thick)

C1—19 to 40 inches; yellowish red (5YR 5/6) fine sandy loam, yellowish red (5YR 4/6)

moist; massive; slightly hard, very friable; few thin strata of darker fine sandy loam

in the lower part of horizon; slightly acid; gradual smooth boundary. (16 to 36

inches thick)

C2—40 to 64 inches; reddish yellow (5YR 6/6) fine sandy loam, yellowish red (5YR

5/6) moist; massive; slightly hard, very friable; common thin strata of loamy fine

sand; slightly acid.

Range in Characteristics

Depth to bedrock: More than 72 inches

Depth to carbonates: More than 40 inches

Depth to buried horizons: More than 30 inches

A horizon:

Color—hue of 2.5YR to 10YR, value of 4 to 7, and chroma of 2 to 6

Texture—fine sandy loam, loam, or loamy fine sand

Reaction—moderately acid to slightly alkaline

Clay content—5 to 18 percent

C horizon:

Color—hue of 2.5YR to 7.5YR, value of 4 to 7, and chroma of 3 to 8
562 Soil Survey

Texture—stratified loamy fine sand, fine sandy loam, very fine sandy loam, or loam

Reaction—moderately acid to slightly alkaline

Clay content—5 to 18 percent

Renfrow Series

Major land resource area: Central Rolling Red Prairies (80A)

Depth class: Very deep

Drainage class: Well drained

Parent material and geologic age: Clayey shale of Permian age

Physiographic region: Interior Lowlands

Physiographic province: Central Lowland

Physiographic sub-province: Osage Plain

Landscape: Upland

Landform: Hills

Landform position: Summit and backslope

Slope range: 0 to 5 percent

Slope shape: Linear-linear or convex

Elevation range: 900 to 1,500 feet

Mean annual precipitation: 26 to 40 inches

Mean annual air temperature: 58 to 64 degrees F

Frost-free days: 190 to 230

Thornthwaite PE index: 44 to 64

Taxonomic class: Fine, mixed, superactive, thermic Udertic Paleustolls

Associated Soils

• Bethany and Kirkland soils which are on the higher parts of the landscape

• Tabler soils which have a mollic epipedon more than 20 inches thick; on the higher

parts of the landscape

• Piedmont and Renthin soils which have a solum less than 60 inches thick; typically

on shoulder slopes

• Grainola and Masham soils which do not have a mollic epipedon and have a solum

less than 60 inches thick; typically on backslopes

• Kingfisher soils which have a fine-silty control section; on the same landscapes as

the Renfrow soils

• Stoneburg and Zaneis soils which have a fine-loamy control section; on the same

landscapes as the Renfrow soils

Typical Pedon

Renfrow silt loam; Kay County, Oklahoma; in native range, about 4 miles south and 3

miles west of Tonkawa, 2,200 feet south and 50 feet east of the northwest corner of

sec. 25, T. 25 N., R. 2 W. (Colors are for dry soil unless otherwise stated.)

A—0 to 9 inches; brown (7.5YR 4/2) silt loam, dark brown (7.5YR 3/2) moist; moderate

medium granular structure; hard, friable; many fine roots; slightly acid; gradual

smooth boundary. (5 to 12 inches thick)

BA—9 to 13 inches; reddish brown (5YR 4/3) clay loam, dark reddish brown (5YR 3/3)

moist; moderate medium subangular blocky structure; hard, friable; many fine

roots; slightly acid; clear smooth boundary. (3 to 10 inches thick)

Btss1—13 to 25 inches; reddish brown (5YR 4/4) clay, dark reddish brown (5YR 3/4)

moist; moderate medium blocky structure; very hard, very firm; nearly continuous

clay films on faces of peds; few slickensides; common fine roots; neutral; gradual

smooth boundary. (8 to 20 inches thick)

Btss2—25 to 40 inches; reddish brown (2.5YR 4/4) clay, dark reddish brown (2.5YR
Logan County, Oklahoma 563

3/4) moist; moderate coarse blocky structure; extremely hard, very firm; nearly

continuous clay films on faces of peds; common slickensides; few fine roots;

calcareous at a depth of 30 inches; slightly alkaline; gradual smooth boundary.

(8 to 25 inches thick)

Btss3—40 to 65 inches; red (2.5YR 4/6) clay, dark red (2.5YR 3/6) moist; weak coarse

blocky structure; extremely hard, very firm; patchy clay films on faces of peds; few

slickensides; few fine roots; few fine and medium concretions of calcium

carbonate; few fine soft rounded bodies of calcium carbonate; calcareous;

moderately alkaline; gradual smooth boundary. (0 to 33 inches thick)

C—65 to 75 inches; red (2.5YR 5/6) clay, red (2.5YR 4/6) moist; massive; extremely

hard, very firm; calcareous; moderately alkaline.

Range in Characteristics

Thickness of the mollic epipedon: 10 to 20 inches

Thickness of the solum: More than 60 inches

Depth to carbonates: 20 to 50 inches

Depth to bedrock: More than 80 inches

Other features: Cracks within 125 cm of the mineral soil surface that are 5 mm or more

wide and extend through a thickness of 30 cm or more for some time in most

years; slickensides or wedge-shaped aggregates in a layer 15 cm or more thick

that has its upper boundary within 125 cm of the mineral soil surface; linear

extensibility of 6.0 cm or more between the mineral soil surface and a depth of 100

cm

A horizon:

Color—hue of 5YR to 10YR, value of 4 or 5, and chroma of 2 or 3

Texture—silt loam, silty clay loam, clay loam, or loam

Reaction—moderately acid to slightly alkaline

Clay content—18 to 35 percent

BA horizon:

Color—hue of 2.5YR to 7.5YR, value of 4 or 5, and chroma of 2 to 4

Texture—silty clay loam, clay loam, or silt loam

Reaction—slightly acid to slightly alkaline

Clay content—22 to 40 percent

Btss1 horizon:

Color—hue of 2.5YR to 5YR, value of 4 to 6, and chroma of 3 to 6

Texture—clay, silty clay, silty clay loam, or clay loam

Reaction—slightly acid to moderately alkaline

Clay content—35 to 55 percent

Btss2 horizon:

Color—hue of 2.5YR to 5YR, value of 4 to 6, and chroma of 3 to 6

Texture—clay, silty clay, silty clay loam, or clay loam

Reaction—slightly acid to moderately alkaline

Clay content—35 to 55 percent

Btss3 horizon:

Color—hue of 10R to 5YR, value of 4 to 6, and chroma of 3 to 8

Texture—clay, silty clay, silty clay loam, or clay loam

Reaction—neutral to moderately alkaline

Clay content—35 to 55 percent

BC horizon (if it occurs):

Color—hue of 10R to 5YR, value of 4 to 6, and chroma of 3 to 8

Texture—clay, silty clay, silty clay loam, or clay loam
564 Soil Survey

Reaction—moderately alkaline; horizon is calcareous

Clay content—35 to 55 percent

Content and size of coarse fragments—0 to 15 percent, by volume, shale gravel 2

to 25 mm in diameter

C horizon:

Color—hue of 10R to 5YR, value of 4 to 6, and chroma of 6 to 8

Texture—clay, silty clay, silty clay loam, or clay loam

Reaction—moderately alkaline; horizon is calcareous

Clay content—35 to 55 percent

Content and size of coarse fragments—0 to 15 percent, by volume, shale gravel 2

to 25 mm in diameter

Redoximorphic features (in some pedons)—redoximorphic accumulations and

depletions in shades of brown, red, or gray

Cr horizon (if it occurs):

Texture—consolidated shale

Depth—more than 60 inches

Renthin Series

Major land resource area: Central Rolling Red Prairies (80A)

Depth class: Deep

Drainage class: Well drained

Parent material and geologic age: Material weathered from clayey and silty shale of

Permian age

Physiographic region: Interior Lowlands

Physiographic province: Central Lowland

Physiographic sub-province: Osage Plain

Landscape: Upland

Landform: Hills

Landform position: Summit and backslope

Slope range: 1 to 5 percent

Slope shape: Linear-convex or linear-linear

Elevation range: 800 to 1,600 feet

Mean annual precipitation: 26 to 40 inches

Mean annual air temperature: 58 to 64 degrees F

Frost-free days: 190 to 230

Thornthwaite PE index: 44 to 64

Taxonomic class: Fine, mixed, superactive, thermic Udertic Argiustolls

Associated Soils

• Renfrow soils which have a solum more than 60 inches thick; in the higher positions

• Norge soils which have an argillic horizon that does not decrease in clay content by

more than 20 percent at a depth of 60 inches and which have a fine-silty control

section; in the lower positions

• Bethany and Kirkland soils which have a mollic epipedon more than 20 inches thick;

in the higher positions

• Grainola soils which do not have a mollic epipedon

• Kingfisher soils which have a fine-silty control section

• Grant soils which have a fine-silty control section; on landscapes similar to those of

the Renthin soils

• Huska soils which do not have a mollic epipedon and have a natric horizon; on

landscapes similar to those of the Renthin soils
Logan County, Oklahoma 565

• Lucien soils which have a solum 10 to 20 inches thick and have a loamy control

section; in the lower positions

• Piedmont soils which are on landscapes similar to those of the Renthin soils but are

at the lower elevations near drainage channels

• Zaneis soils which have a fine-loamy control section and do not have secondary

calcium carbonate accumulations; on landscapes similar to those of the Renthin

soils

Typical Pedon

Renthin silt loam; Oklahoma County, Oklahoma; in a native hay meadow, about 2 miles

east and 1

/2 mile north of Britton, about 2,500 feet north and 1,500 feet east of the

southwest corner of sec. 26, T. 13 N., R. 3 W. (Colors are for dry soil unless otherwise

stated.)

A—0 to 4 inches; brown (7.5YR 4/2) silt loam, dark brown (7.5YR 3/2) moist; weak

medium platy structure parting to weak fine granular; hard, friable; many very fine

and few fine roots; many very fine and fine pores; neutral; clear smooth boundary.

(4 to 10 inches thick)

BA—4 to 10 inches; brown (7.5YR 4/2) clay loam, dark brown (7.5YR 3/2) moist; weak

fine subangular blocky structure parting to moderate fine granular; very hard, firm;

many very fine and few fine roots; many very fine and fine pores; common

wormcasts; slightly acid; clear smooth boundary. (0 to 6 inches thick)

Bt1—10 to 15 inches; reddish brown (5YR 4/3) clay, dark reddish brown (5YR 3/3)

moist; weak medium prismatic structure parting to moderate fine subangular

blocky; very hard, very firm; many very fine and few fine roots; common very fine

and fine pores; common distinct discontinuous clay films on vertical faces of peds;

slightly acid; gradual smooth boundary. (4 to 20 inches thick)

Bt2—15 to 22 inches; reddish brown (2.5YR 4/4) clay, dark reddish brown (2.5YR 3/4)

moist; moderate medium prismatic structure parting to moderate medium blocky;

extremely hard, extremely firm; many very fine and few fine roots; many very fine

and common fine pores; common distinct continuous clay films on vertical and

horizontal faces of peds; vertical cracks filled with material from A horizon; slightly

acid; clear wavy boundary. (0 to 20 inches thick)

Btss—22 to 29 inches; red (2.5YR 4/6) clay, red (2.5YR 3/6) moist; moderate medium

prismatic structure parting to strong medium blocky; extremely hard, extremely

firm; common very fine and few fine roots; few very fine and fine pores; common

slickensides; common distinct continuous clay films on vertical and horizontal

faces of peds; neutral; gradual wavy boundary. (0 to 20 inches thick)

Btkss—29 to 42 inches; red (2.5YR 4/6) clay, red (2.5YR 3/6) moist; weak coarse

prismatic structure parting to strong medium blocky; extremely hard, extremely

firm; common very fine roots; few very fine and fine pores; common slickensides;

common distinct continuous clay films on vertical and horizontal faces of peds

(30 percent, by volume); common calcium carbonate masses; few fine and

medium calcium carbonate concretions; few fine and medium black concretions (2

percent, by volume); slightly alkaline; gradual wavy boundary. (6 to 38 inches thick)

Btk—42 to 55 inches; red (2.5YR 5/6) clay loam, red (2.5YR 4/6) moist; weak coarse

prismatic structure parting to moderate medium blocky; very hard, very firm; few

very fine roots; common very fine and few fine pores; few distinct continuous clay

films on vertical faces of peds; few medium calcium carbonate soft masses; few

medium calcium carbonate concretions; fine and medium black concretions

(10 percent, by volume); moderately alkaline; clear wavy boundary. (6 to 38 inches

thick)

Cr1—55 to 66 inches; reddish brown (2.5YR 4/4), red (2.5YR 5/6), and pale yellow

(2.5Y 7/4) laminated shale, sandstone, and siltstone, dark reddish brown (2.5YR

3/4), red (2.5YR 4/6), and light yellowish brown (2.5Y 6/4) moist; hard; very few
566 Soil Survey

very fine roots in fractures; strongly alkaline; clear wavy boundary. (0 to 11 inches

thick)

Cr2—66 to 77 inches; red (2.5YR 5/6) and light gray (2.5Y 7/2) very fine-grained

sandstone, red (2.5YR 4/6) and light brownish gray (2.5Y 6/2) moist; hard; strongly

alkaline.

Range in Characteristics

Thickness of the solum: 40 to 60 inches

Depth to bedrock: 40 to 60 inches

Depth to carbonates: 19 to 52 inches

Other features: Cracks within 125 cm of the mineral soil surface that are 5 mm or more

wide and extend through a thickness of 30 cm or more for some time in most

years; slickensides or wedge-shaped aggregates in a layer 15 cm or more thick

that has its upper boundary within 125 cm of the mineral soil surface; linear

extensibility of 6.0 cm or more between the mineral soil surface and either a depth

of 100 cm or a paralithic contact; clay content of more than 35 percent within a

depth of 15 inches

A horizon:

Color—hue of 5YR or 7.5YR, value of 4 or 5, and chroma of 2 or 3

Texture—typically silt loam; commonly silty clay loam or clay loam in cultivated

areas

Reaction—slightly acid to neutral

Clay content—20 to 35 percent

BA horizon:

Color—hue of 2.5YR to 7.5YR, value of 4 or 5, and chroma of 2 to 4

Texture—silty clay loam or clay loam

Reaction—slightly acid to slightly alkaline

Clay content—32 to 40 percent

Bt1 horizon:

Color—hue of 2.5YR or 5YR, value of 4 or 5, and chroma of 3 to 6

Texture—silty clay loam, silty clay, or clay

Reaction—slightly acid to moderately alkaline

Clay content—35 to 45 percent

Bt2 horizon:

Color—hue of 2.5YR or 5YR and value and chroma of 4 to 6

Texture—silty clay or clay

Reaction—slightly acid to moderately alkaline

Clay content—40 to 55 percent

Btss horizon:

Color—hue of 2.5YR or 5YR and value and chroma of 4 to 6

Texture—silty clay or clay

Reaction—slightly acid to moderately alkaline

Clay content—40 to 55 percent

Btkss horizon:

Color—hue of 2.5YR or 5YR, value of 4 or 5, and chroma of 4 to 8

Texture—silty clay loam, silty clay, or clay

Reaction—slightly alkaline or moderately alkaline

Clay content—35 to 55 percent

Btk horizon:

Color—hue of 2.5YR or 5YR, value of 4 or 5, and chroma of 4 to 8

Texture—silty clay loam, clay loam, silty clay, or clay
Logan County, Oklahoma 567

Reaction—moderately alkaline

Clay content—35 to 55 percent

BC horizon (if it occurs):

Color—hue of 2.5YR or 5YR, value of 4 or 5, and chroma of 4 to 8

Texture—silty clay loam, clay loam, silty clay, or clay

Reaction—moderately alkaline

Clay content—35 to 55 percent

Cr horizon:

Color—hue of 2.5YR, value of 4 to 6, and chroma of 4 to 8

Texture—nonparalithic shale

Excavation difficulty—low or moderate

Other features—fractures more than 10 cm apart; most of horizon material slakes

in water within 15 hours

Slaughterville Series

Major land resource area: Central Rolling Red Plains (80A)

Depth class: Very deep

Drainage class: Well drained

Parent material and geologic age: Loamy and sandy eolian deposits of Pleistocene

age

Physiographic region: Interior Lowlands

Physiographic province: Central Lowland

Physiographic sub-province: Osage Plain

Primary landscape: Valley

Secondary landscape: Terrace

Landform: Dune

Landform position: Interdune

Slope range: 1 to 45 percent

Slope shape: Linear-convex or convex-convex

Elevation range: 800 to 1,200 feet

Mean annual precipitation: 26 to 40 inches

Mean annual air temperature: 58 to 64 degrees F

Frost-free days: 200 to 230

Thornthwaite PE index: 44 to 64

Taxonomic class: Coarse-loamy, mixed, superactive, thermic Udic Haplustolls

Associated Soils

• Canadian soils which are on nearly level and very gently sloping flood plains that are

subject to rare flooding

• Derby soils which have a sandy control section with lamellae; on landscapes similar

to those of the Slaughterville soils

• Konawa soils which have lighter colored A horizons than the Slaughterville soils and

a fine-loamy control section; on the higher landscapes that are farther from the

stream

• Dougherty soils which have A horizons more than 20 inches thick, have lighter

colored A horizons than the Slaughterville soils, and have a fine-loamy control

section; on the higher landscapes that are farther from the stream

• Minco soils which typically are in the slightly higher and flatter adjacent areas

• Norge, Teller, and Vanoss soils which have argillic horizons; on landscapes

that are similar to those of the Slaughterville soils but are farther from the

stream
568 Soil Survey

Typical Pedon

Slaughterville fine sandy loam; Cleveland County, Oklahoma; in pastureland, about 6

miles west and 6 miles north of Norman, about 2,040 feet east and 580 feet north of

the southwest corner of sec. 29, T. 10 N., R. 3 W. (Colors are for dry soil unless

otherwise indicated.)

Ap—0 to 9 inches; brown (10YR 5/3) fine sandy loam, very dark grayish brown (10YR

3/2) moist; weak fine granular structure; slightly hard, very friable; many very fine

and few medium roots; slightly acid; clear smooth boundary. (7 to 11 inches thick)

A—9 to 18 inches; brown (10YR 4/3) fine sandy loam, dark brown (10YR 3/3) moist;

moderate medium granular structure; slightly hard, very friable; many very fine

roots; slightly acid; gradual smooth boundary. (3 to 10 inches thick)

Bw—18 to 30 inches; brown (7.5YR 5/4) fine sandy loam, brown (7.5YR 4/4) moist;

weak fine subangular blocky structure; slightly hard, very friable; many very fine

roots; neutral; gradual smooth boundary. (10 to 56 inches thick)

C1—30 to 58 inches; yellowish red (5YR 5/6) fine sandy loam, yellowish red (5YR 4/6)

moist; massive; soft, very friable; common very fine roots; slightly alkaline; gradual

smooth boundary. (8 to 48 inches thick)

C2—58 to 76 inches; yellowish red (5YR 5/6) loamy fine sand, yellowish red (5YR 5/6)

moist; massive; soft, very friable; few very fine roots; moderately alkaline.

Range in Characteristics

Thickness of the solum: 20 to more than 50 inches

A and Ap horizons:

Color—hue of 7.5YR to 10YR, value of 4 or 5, and chroma of 2 or 3

Texture—fine sandy loam

Reaction—moderately acid to neutral

Bw horizon:

Color—hue of 5YR to 7.5YR, value of 4 or 5, and chroma of 2 to 6

Texture—fine sandy loam

Reaction—slightly acid to moderately alkaline

Clay content—10 to 18 percent

C horizon:

Color—hue of 5YR or 7.5YR, value of 5 to 7, and chroma of 4 to 6

Texture—typically fine sandy loam; loamy fine sand or fine sand occurs below a

depth of 45 inches in some pedons

Reaction—neutral to moderately alkaline

Stephenville Series

Major land resource area: Cross Timbers (84A)

Depth class: Moderately deep

Drainage class: Well drained

Parent material and geologic age: Sandstone of Permian age

Physiographic region: Interior Lowlands

Physiographic province: Central Lowland

Physiographic sub-province: Osage Plain

Landscape: Upland

Landform: Hills

Landform position: Summit and backslope

Slope range: 1 to 25 percent

Slope shape: Linear-convex
Logan County, Oklahoma 569

Elevation range: 700 to 1,500 feet

Mean annual precipitation: 30 to 38 inches

Mean annual air temperature: 58 to 63 degrees F

Frost-free days: 200 to 230

Thornthwaite PE index: 48 to 64

Taxonomic class: Fine-loamy, siliceous, active, thermic Ultic Haplustalfs

Associated Soils

• Littleaxe, Dougherty, Galey, Harrah, Konawa, and Stidham soils which are on

landscapes similar to those of the Stephenville soils

• Darnell and Darsil soils which have a solum less than 20 inches thick and do not

have Bt horizons; on ridgetops

• Niotaze soils which have a fine control section; on side slopes, commonly at the

lower elevations

Typical Pedon

Stephenville loamy fine sand; Oklahoma County, Oklahoma; in bermudagrass pasture,

about 2 1/2 miles east and 1 mile north of Spencer, about 750 feet south and 450 feet

east of the northwest corner of sec. 8, T. 12 N., R. 1 W. (Colors are for dry soil unless

otherwise stated.)

A—0 to 5 inches; grayish brown (10YR 5/2) loamy fine sand, very dark grayish brown

(10YR 3/2) moist; weak very fine granular structure; soft, very friable; many very

fine and fine and few medium and coarse roots; moderately acid; clear smooth

boundary. (3 to 8 inches thick)

E—5 to 15 inches; light brown (7.5YR 6/4) loamy fine sand, brown (7.5YR 5/4) moist;

weak fine granular structure; soft, very friable; common very fine and fine and few

medium roots; strongly acid; abrupt wavy boundary. (0 to 13 inches thick)

Bt1—15 to 25 inches; red (2.5YR 5/6) sandy clay loam, red (2.5YR 4/6) moist;

moderate medium subangular blocky structure; very hard, firm; common very fine

and fine and few medium roots; common distinct continuous clay films on faces of

peds; clean sand grains along root channels; strongly acid; gradual wavy

boundary. (5 to 25 inches thick)

Bt2—25 to 33 inches; light red (2.5YR 6/6) sandy clay loam, red (2.5YR 5/6) moist;

weak coarse subangular blocky structure; hard, firm; few very fine and medium,

common fine, and very few coarse roots; common distinct patchy clay films on

faces of peds; clean sand grains along root channels; strongly acid; clear wavy

boundary. (0 to 12 inches thick)

Cr1—33 to 40 inches; red (2.5YR 5/6) weakly cemented fine-grained sandstone, red

(2.5YR 4/6) moist; hard; common fine and few medium roots in fractures; strongly

acid; clear wavy boundary.

Cr2—40 to 51 inches; light red (2.5YR 6/8) weakly cemented fine-grained sandstone,

red (2.5YR 5/8) moist; hard; common fine and few medium roots in fractures;

strongly acid.

Range in Characteristics

Thickness of the solum: 20 to 40 inches

Depth to bedrock: 20 to 40 inches

A horizon:

Color—hue of 5YR to 10YR, value of 3 to 7, and chroma of 2 to 6

Texture—fine sandy loam or loamy fine sand

Reaction—strongly acid to slightly acid

Clay content—5 to 20 percent
570 Soil Survey

E horizon:

Color—hue of 5YR to 10YR, value of 5 to 7, and chroma of 2 to 6

Texture—fine sandy loam or loamy fine sand

Reaction—strongly acid to slightly acid

Clay content—5 to 20 percent

Bt horizon:

Color—hue of 2.5YR or 5YR, value of 4 to 6, and chroma of 4 to 8

Texture—sandy clay loam or fine sandy loam

Reaction—very strongly acid to slightly acid

Clay content—18 to 35 percent

BC horizon (if it occurs):

Color—hue of 2.5YR or 5YR, value of 4 to 6, and chroma of 4 to 8

Texture—fine sandy loam or sandy clay loam

Reaction—strongly acid to slightly acid

Clay content—18 to 35 percent

Cr horizon:

Color—reddish

Texture—sandstone

Teller Series

Major land resource area: Central Rolling Red Prairies (80A)

Depth class: Very deep

Drainage class: Well drained

Parent material and geologic age: Loamy sediments of Pleistocene age

Physiographic region: Interior Lowlands

Physiographic province: Central Lowland

Physiographic sub-province: Osage Plain

Landscape: Upland

Landform: Terrace

Landform position: Tread or summit

Slope range: 0 to 8 percent

Slope shape: Linear-convex, linear-linear, or convex-linear

Elevation range: 900 to 1,300 feet

Mean annual precipitation: 26 to 38 inches

Mean annual air temperature: 58 to 63 degrees F

Frost-free days: 200 to 230

Thornthwaite PE index: 44 to 64

Taxonomic class: Fine-loamy, mixed, active, thermic Udic Argiustolls

Associated Soils

• Dougherty and Konawa soils which do not have a mollic epipedon; in the slightly

higher positions

• Minco soils which do not have an argillic horizon; in the higher positions or in areas

between terraces

• Norge, Pond Creek, and Vanoss soils which have fine-silty control sections; in the

slightly lower positions

• Navina soils which are in landscape positions similar to those of the Teller soils

• Slaughterville soils which do not have an argillic horizon; in the slightly lower

positions nearer the major streams
Logan County, Oklahoma 571

Typical Pedon

Teller fine sandy loam; Payne County, Oklahoma; in a cultivated area, about 1 mile

west and 1 mile north of Perkins, 2,100 feet north and 80 feet east of the southwest

corner of sec. 36, T. 18 N., R. 2 E. (Colors are for dry soil unless otherwise stated.)

Ap—0 to 6 inches; brown (10YR 5/3) fine sandy loam, dark brown (10YR 3/3) moist;

weak fine and medium granular structure; slightly hard, very friable; moderately

acid; clear smooth boundary. (0 to 11 inches thick)

A—6 to 15 inches; brown (10YR 4/3) fine sandy loam, dark brown (10YR 3/3) moist;

moderate medium and fine granular structure; slightly hard, friable; moderately

acid; gradual smooth boundary. (6 to 15 inches thick)

BA—15 to 20 inches; brown (7.5YR 4/4) fine sandy loam, dark brown (7.5YR 3/4)

moist; weak medium subangular blocky structure parting to moderate medium

granular; hard, friable; moderately acid; gradual smooth boundary. (0 to 8 inches

thick)

Bt1—20 to 32 inches; yellowish red (5YR 5/6) sandy clay loam, yellowish red (5YR

4/6) moist; weak coarse prismatic structure parting to moderate medium

subangular blocky; hard, firm; thin nearly continuous clay films on faces of peds;

moderately acid; gradual smooth boundary. (6 to 20 inches thick)

Bt2—32 to 42 inches; yellowish red (5YR 5/6) sandy clay loam, yellowish red (5YR

4/6) moist; weak coarse prismatic structure parting to weak medium subangular

blocky; hard, firm; patchy clay films on faces of peds; moderately acid; gradual

smooth boundary. (6 to 20 inches thick)

Bt3—42 to 60 inches; yellowish red (5YR 5/6) fine sandy loam, yellowish red (5YR 4/6)

moist; weak coarse prismatic structure; hard, friable; patchy clay films on faces of

peds; moderately acid; diffuse smooth boundary. (10 to 30 inches thick)

C—60 to 70 inches; yellowish red (5YR 5/6) fine sandy loam, yellowish red (5YR 4/6)

moist; weak coarse prismatic structure; hard, friable; patchy clay films on faces of

peds; moderately acid.

Range in Characteristics

Thickness of the mollic epipedon: Less than 20 inches

Thickness of the solum: More than 50 inches

Depth to bedrock: More than 60 inches

Ap or A horizon:

Color—hue of 5YR to 10YR, value of 4 or 5, and chroma of 2 or 3

Texture—fine sandy loam, loam, or very fine sandy loam

Reaction—moderately acid or slightly acid

Clay content—10 to 20 percent

BA horizon:

Color—hue of 5YR or 7.5YR, value of 4 or 5, and chroma of 2 to 4

Texture—fine sandy loam, loam, or very fine sandy loam

Reaction—moderately acid or slightly acid

Clay content—18 to 30 percent

Bt1 and Bt2 horizons:

Color—hue of 2.5YR or 5YR, value of 4 to 6, and chroma of 4 to 8

Texture—sandy clay loam or clay loam

Reaction—moderately acid to neutral

Clay content—20 to 30 percent

Bt3 horizon:

Color—hue of 2.5YR to 7.5YR, value of 4 to 6, and chroma of 4 to 8

Texture—fine sandy loam, loam, clay loam, or very fine sandy loam
572 Soil Survey

Reaction—moderately acid to neutral

Clay content—10 to 20 percent

BC horizon (if it occurs):

Color—hue of 2.5YR to 7.5YR, value of 4 to 6, and chroma of 4 to 8

Texture—loam, fine sandy loam, or very fine sandy loam

Reaction—slightly acid to slightly alkaline

Clay content—10 to 20 percent

C horizon:

Color—hue of 2.5YR to 7.5YR, value of 4 to 6, and chroma of 4 to 8

Texture—loam, fine sandy loam, or very fine sandy loam

Reaction—moderately acid to slightly alkaline

Clay content—10 to 20 percent

Tribbey Series

Major land resource area: Cross Timbers (84A)

Depth class: Very deep

Drainage class: Somewhat poorly drained

Parent material and geologic age: Loamy and sandy alluvium of Recent age

Physiographic region: Interior Lowlands

Physiographic province: Central Lowland

Physiographic sub-province: Osage Plain

Landscape: Valley

Landform: Low flood plain

Slope range: 0 to 2 percent

Slope shape: Concave-concave or linear-concave

Elevation range: 800 to 1,200 feet

Mean annual precipitation: 30 to 40 inches

Mean annual air temperature: 58 to 62 degrees F

Frost-free days: 200 to 230

Thornthwaite PE index: 48 to 64

Taxonomic class: Coarse-loamy, mixed, superactive, nonacid, thermic Oxyaquic

Udifluvents

Associated Soils

• Pulaski soils which are commonly in the slightly higher areas

Typical Pedon

Tribbey fine sandy loam; Pottawatomie County, Oklahoma; in improved pasture, about

5 miles west and 1 mile south of Bethel, 1,400 feet south and 200 feet east of the

northwest corner of sec. 33, T. 10 N., R. 2 E. (Colors are for moist soil unless

otherwise stated.)

A—0 to 10 inches; red (2.5YR 4/6) fine sandy loam, red (2.5YR 5/6) dry; weak fine

granular structure; slightly hard, very friable; faint stratification; slightly alkaline;

clear smooth boundary. (4 to 14 inches thick)

C1—10 to 40 inches; red (2.5YR 4/6) fine sandy loam; massive; slightly hard, very

friable; common thin strata of darker and lighter colored loamy fine sand and fine

sand; saturated with water at a depth of 30 inches; moderately alkaline; clear

smooth boundary. (15 to 60 inches thick)

C2—40 to 50 inches; red (2.5YR 4/6) fine sandy loam; massive; slightly hard, very

friable; many thin strata of lighter colored loamy fine sand and fine sand; saturated

with water; moderately alkaline; clear smooth boundary. (0 to 50 inches thick)
Logan County, Oklahoma 573

Ab—50 to 65 inches; very dark grayish brown (10YR 3/2) loam; weak fine granular

structure; slightly hard, friable; common fine distinct red (2.5YR 4/6) masses of

iron concentration and gray (10YR 5/1) iron depletions; saturated with water;

moderately alkaline.

Range in Characteristics

Depth to buried horizons: 30 to 55 inches

Other features: The soil is saturated with water in one or more layers within 100 cm of

the mineral soil surface for 1 month or more per year in 6 years or more out of 10

A horizon:

Color—hue of 2.5YR to 10YR, value of 3 to 5, and chroma of 3 to 8

Texture—fine sandy loam, loamy fine sand, loam, or clay loam

Reaction—moderately acid to moderately alkaline

Clay content—5 to 35 percent

C horizon:

Color—hue of 2.5YR to 10YR, value of 4 or 5, and chroma of 4 to 8

Texture—fine sandy loam, loam, or loamy very fine sand to a depth of 40 inches;

loamy fine sand, fine sandy loam, or loam below a depth of 40 inches

Reaction—moderately acid to moderately alkaline

Clay content—5 to 18 percent

Redoximorphic features (in some pedons below a depth of 30 inches)—gray,

brown, or red depletions and concentrations

Ab horizon (if it occurs):

Color—hue of 5YR to 10YR, value of 3 or 4, and chroma of 2 to 4

Texture—loam, clay loam, sandy clay loam, or fine sandy loam

Reaction—neutral to moderately alkaline

Clay content—15 to 30 percent

Redoximorphic features—gray, brown, or red depletions and concentrations

Cb horizon (if it occurs):

Color—hue of 5YR to 10YR, value of 3 or 4, and chroma of 2 to 4

Texture—loam, clay loam, sandy clay loam, or fine sandy loam

Reaction—neutral to moderately alkaline

Clay content—15 to 30 percent

Redoximorphic features—gray, brown, or red depletions and concentrations

Yahola Series

Major land resource area: Central Rolling Red Prairies (80A)

Depth class: Very deep

Drainage class: Well drained

Parent material and geologic age: Recent calcareous loamy alluvium

Physiographic region: Interior Lowlands

Physiographic province: Central Lowland

Physiographic sub-province: Osage Plain

Landscape: Valley

Landform: Low flood plain

Slope range: 0 to 2 percent

Slope shape: Linear-linear

Elevation range: 800 to 1,300 feet

Mean annual precipitation: 26 to 40 inches

Mean annual air temperature: 57 to 64 degrees F
574 Soil Survey

Frost-free days: 190 to 230

Thornthwaite PE index: 44 to 64

Taxonomic class: Coarse-loamy, mixed, superactive, calcareous, thermic Udic

Ustifluvents

Associated Soils

• Canadian and Dale soils which have mollic surface layers; in the slightly higher

areas

• Gaddy soils which are loamy fine sand or coarser material throughout the textural

control section; in the slightly lower areas

• Gracemont and Gracemore soils which have a water table within a depth of 40

inches; in the slightly lower areas

• Port soils which have a mollic epipedon and a fine-silty textural control section; in

nearby areas

• Miller soils which have a fine textural control section and have a mollic epipedon; in

nearby areas

• Pulaski soils which are in nearby areas

• Reinach soils which have a mollic epipedon and a coarse-silty textural control

section; in the higher areas

Typical Pedon

Yahola fine sandy loam; Jefferson County, Oklahoma; about 7 miles west and 1 mile

north of Ryan, about 2,000 feet north and 200 feet east of the southwest corner of

sec. 18, T. 6 S., R. 8 W. (Colors are for dry soil unless otherwise stated.)

Ap—0 to 11 inches; reddish brown (5YR 5/4) fine sandy loam, reddish brown (5YR

4/4) moist; weak fine granular structure; soft, very friable; calcareous; moderately

alkaline; gradual smooth boundary.

C1—11 to 40 inches; reddish yellow (5YR 6/6) fine sandy loam, yellowish red (5YR

5/6) moist; massive; slightly hard, very friable; thin strata of loamy fine sand and

silt loam in the lower part of horizon; calcareous; moderately alkaline; gradual

smooth boundary.

C2—40 to 56 inches; reddish brown (5YR 5/4) loam, reddish brown (5YR 4/4) moist;

massive; slightly hard, friable; calcareous; moderately alkaline; gradual smooth

boundary.

C3—56 to 72 inches; yellowish red (5YR 5/6) fine sandy loam, yellowish red (5YR 4/6)

moist; massive; slightly hard, very friable; thin strata of loamy fine sand to clay

loam; calcareous; moderately alkaline.

Range in Characteristics

A horizon:

Color—hue of 2.5YR to 7.5YR, value of 4 to 7 (dry) and 3 to 6 (moist), and chroma

of 2 to 6; where value is 5.5 or less (3 moist), chroma is 3.5 or less, and horizon

thickness is more than 10 inches, the organic matter content is less than 1

percent

Texture—loamy fine sand, fine sandy loam, very fine sandy loam, or loam; where

the horizon is loamy fine sand, it is less than 12 inches thick

Reaction—slightly alkaline or moderately alkaline; horizon is typically calcareous

C horizon:

Color—hue of 2.5YR to 7.5YR, value of 5 to 7 (dry) and 4 to 6 (moist), and chroma

of 3 to 8

Texture—fine sandy loam, very fine sandy loam, or loam above a depth of 40

inches; fine sandy loam, loam, silt loam, or loamy fine sand below a depth of 40

inches; thin strata of coarser or finer materials occur throughout the horizon
Logan County, Oklahoma 575

Clay content—5 to 18 percent above a depth of 40 inches

Reaction—moderately alkaline; horizon is calcareous

Zaneis Series

Major land resource area: Central Rolling Red Prairies (80A)

Depth class: Deep

Drainage class: Well drained

Parent material and geologic age: Material weathered from interbedded sandstone and

shale of Permian age

Physiographic region: Interior Lowlands

Physiographic province: Central Lowland

Physiographic sub-province: Osage Plain

Landscape: Upland

Landform: Hills

Landform position: Summit and backslope

Slope range: 0 to 8 percent

Slope shape: Linear-convex or convex-convex

Elevation range: 900 to 1,200 feet

Mean annual precipitation: 26 to 40 inches

Mean annual air temperature: 58 to 64 degrees F

Frost-free days: 200 to 230

Thornthwaite PE index: 44 to 64

Taxonomic class: Fine-loamy, siliceous, active, thermic Udic Argiustolls

Associated Soils

• Bethany soils which have a fine control section; on the slightly higher broad flats

• Chickasha and Coyle soils which are in areas similar to those of the Zaneis soils

• Grainola soils which do not have a mollic epipedon, have a fine control section, and

have a solum less than 40 inches thick; on side slopes

• Loco and Lucien soils which have a solum less than 20 inches thick and do not have

Bt horizons; commonly on ridge crests and upper side slopes

• Mulhall soils which are on the slightly lower side slopes and footslopes

• Nash soils which have a coarse-silty control section and do not have Bt horizons;

commonly in areas similar to those of the Zaneis soils

• Renfrow soils which have a fine control section; on the slightly higher convex ridge

crests

• Stephenville soils which do not have a mollic epipedon and have a solum less than

40 inches thick; in areas that are similar to those of the Zaneis soils but that have

savannah vegetation

• Teller soils which are typically in the slightly lower areas that are closer to the stream

channel

Typical Pedon

Zaneis loam (fig. 25); Oklahoma County, Oklahoma; in a cultivated area, about 1 mile

east and 5 miles north of Edmond, 100 feet south and 1,000 feet east of the northwest

corner of sec. 6, T. 14 N., R. 2 W. (Colors are for dry soil unless otherwise stated.)

A1—0 to 6 inches; brown (7.5YR 4/2) loam, dark brown (7.5YR 3/2) moist; weak

medium platy structure parting to weak fine granular; slightly hard, very friable;

many very fine and few fine roots; many very fine and fine continuous tubular

pores; moderately acid; abrupt smooth boundary. (0 to 10 inches thick)

A2—6 to 12 inches; brown (7.5YR 4/2) loam, dark brown (7.5YR 3/2) moist; weak fine

subangular blocky structure parting to moderate fine granular; slightly hard, very
576 Soil Survey

friable; many very fine and few fine roots; many very fine and fine continuous

tubular pores; moderately acid; clear smooth boundary. (4 to 14 inches thick)

BA—12 to 19 inches; brown (7.5YR 4/3) loam, dark brown (7.5YR 3/3) moist; weak

fine prismatic structure parting to weak fine subangular blocky; hard, firm; many

very fine and few fine and medium roots; common very fine and fine continuous

tubular pores; moderately acid; gradual smooth boundary. (0 to 7 inches thick)

Bt1—19 to 31 inches; brown (7.5YR 5/3) clay loam, brown (7.5YR 4/3) moist;

moderate medium prismatic structure parting to moderate medium blocky; very

hard, very firm; many very fine and few fine roots; common very fine and fine

continuous tubular pores; common distinct continuous clay films on vertical and

horizontal faces of peds; slightly acid; gradual wavy boundary. (4 to 18 inches

thick)

Bt2—31 to 39 inches; reddish brown (5YR 5/4) sandy clay loam, reddish brown (5YR

Figure 25.—Profile of Zaneis loam. Multiply the scale on the left

by 10 for centimeters.
Logan County, Oklahoma 577

4/4) moist; moderate coarse prismatic structure parting to moderate medium

blocky; very hard, very firm; common very fine roots; common very fine and fine

continuous tubular pores; common distinct continuous clay films on vertical and

horizontal faces of peds; common medium distinct red (2.5YR 4/6) redoximorphic

concentrations; few fine iron-manganese concretions; moderately acid; gradual

wavy boundary. (6 to 23 inches thick)

Bt3—39 to 48 inches; yellowish red (5YR 5/6) sandy clay loam, yellowish red (5YR

4/6) moist; weak coarse prismatic structure parting to weak medium subangular

blocky; hard, firm; common very fine roots; many very fine and common fine

continuous tubular pores; common distinct discontinuous clay films on vertical and

horizontal faces of peds; common coarse prominent olive yellow (5Y 6/6), reddish

brown (2.5YR 5/4), and brown (7.5YR 5/3) redoximorphic concentrations; common

fine iron-manganese concretions; brown (7.5YR 4/3) material in root channels;

slightly acid; gradual wavy boundary. (0 to 24 inches thick)

Bt4—48 to 55 inches; red (2.5YR 5/6) sandy clay loam, red (2.5YR 4/6) moist; weak

coarse prismatic structure parting to weak coarse subangular blocky; hard, firm;

few very fine roots; few very fine, many fine, and common medium continuous

tubular pores; common faint discontinuous clay films on vertical faces of peds;

common medium distinct dark red (2.5YR 3/6) redoximorphic concentrations; few

fine iron-manganese concretions; brown (7.5YR 4/3) material along root channels;

slightly acid; clear wavy boundary. (0 to 15 inches thick)

BC—55 to 59 inches; red (2.5YR 5/6) sandy clay loam, red (2.5YR 4/6) moist; weak

coarse subangular blocky structure; hard, friable; few very fine roots; common very

fine and many fine continuous tubular pores; few medium distinct dark red (10R

3/6) redoximorphic concentrations; brown (7.5YR 4/3) material along root

channels; 10 percent, by volume, weathered sandstone fragments; slightly acid;

abrupt wavy boundary. (0 to 10 inches thick)

Cr—59 to 65 inches; red (2.5YR 4/6) soft laminated sandstone, dark red (2.5YR 3/6)

moist; slightly acid.

Range in Characteristics

Thickness of the mollic epipedon: Less than 20 inches

Thickness of the solum: 40 to 60 inches

Depth to bedrock: 40 to 60 inches

A or Ap horizon:

Color—hue of 5YR to 10YR, value of 4 or 5, and chroma of 2 or 3

Texture—loam or fine sandy loam

Reaction—moderately acid to neutral

Clay content—10 to 26 percent

BA horizon:

Color—hue of 5YR or 7.5YR, value of 4, and chroma of 2 to 4

Texture—loam or clay loam

Reaction—moderately acid to neutral

Clay content—18 to 30 percent

Bt1 horizon:

Color—hue of 5YR or 7.5YR, value of 4 or 5, and chroma of 3 or 4

Texture—loam, clay loam, or sandy clay loam

Reaction—moderately acid to slightly alkaline

Clay content—18 to 30 percent

Bt2 horizon:

Color—hue of 2.5YR to 7.5YR, value of 4 or 5, and chroma of 4 to 6

Texture—clay loam or sandy clay loam
578

Reaction—moderately acid to slightly alkaline

Clay content—20 to 38 percent

Bt3 horizon:

Color—hue of 2.5YR or 5YR, value of 4 or 5, and chroma of 4 to 8

Texture—clay loam or sandy clay loam

Reaction—slightly acid to moderately alkaline

Clay content—20 to 38 percent

Redoximorphic features—red or brown concentrations

Bt4 horizon:

Color—hue of 2.5YR or 5YR, value of 4 to 6, and chroma of 4 to 8

Texture—fine sandy loam, clay loam, or sandy clay loam

Reaction—moderately acid to slightly alkaline

Clay content—18 to 30 percent

Redoximorphic features—red or brown concentrations

BC horizon:

Color—hue of 2.5YR or 5YR, value of 4 to 6, and chroma of 4 to 8

Texture—fine sandy loam, clay loam, or sandy clay loam

Reaction—moderately acid to slightly alkaline

Cr horizon:

Color—hue of 2.5YR or 5YR, value of 4 to 6, and chroma of 4 to 8

Texture—weathered sandstone
579

This section discusses the factors of soil formation and how they relate to the soils

in Logan County. It also discusses the geology of the survey area.

Factors of Soil Formation

The following paragraphs describe the five factors of soil formation—climate, living

organisms, topography, parent material, and time. The combined influence of these

factors determines the characteristics and properties of a soil.

Climate

Logan County has a moist, subhumid climate. Because the climate is fairly uniform

throughout the county, differences among soils cannot be attributed to differences in

climate based on the present climatic regime. Moisture and warm temperatures have

been sufficient for the formation of distinct layers in many of the soils. Soil leaching is

moderate. The physical abrasion and redistribution of materials by wind action

contributes to soil formation. Cold temperatures occur often enough and long enough

in the survey area to alter materials through the processes of freezing and thawing.

Living Organisms

Plants, burrowing animals, insects, and soil micro-organisms have a direct influence

on the formation of soils. The native grasses and trees in the county have had different

effects on the losses and gains of organic matter and plant nutrients in the soil and on

soil structure and porosity. Soils that formed under prairie vegetation, such as Kirkland

and Norge, have a dark grayish brown surface layer and a moderately high content of

organic matter. Soils that formed under trees, such as Littleaxe and Stephenville, have

a brown surface layer and a low content of organic matter.

Topography

Relief influences the formation of the soils mainly through its effect on water

movement, erosion, soil temperature, and the kind of plant cover. In Logan County,

relief is determined largely by the resistance of underlying formations to weathering

and geological erosion. The topography of the eastern third of Logan County consists

of rolling to hilly uplands with long, narrow, very gently sloping to moderately sloping

summits. The drainage deeply dissects the uplands, thus forming broad, gently sloping

to steep side slopes with narrow flood plains. The native vegetation is a savannah of

post oak and blackjack oak with an understory of tall and mid grasses. The western

two thirds of Logan County consists of nearly level to rolling uplands with broad, nearly

level and very gently sloping summits. The drainage dissects the uplands, thus forming

the long, broad, gently sloping to moderately steep side slopes with wide flood plains.

Steep rock escarpments occasionally break the side slopes from the flood plains on

many of the major streams. The native vegetation is mid and tall prairie grasses.

Formation of the Soils
580 Soil Survey

Parent Material

Soils form in unconsolidated material, which influences the rate of formation; the

chemical, physical, and mineral composition of the soil; and the color of the soil. Soils

on the uplands in Logan County formed in material weathered from sandstone, clay

beds, and shale. Soils that formed in shale and clay beds include Masham, Piedmont,

Renthin, and Renfrow. Soils that formed in sandstone are Darsil, Ironmound,

Stephenville, Coyle, and Zaneis.

Alluvial sediment is extensive along streams and rivers in the county. The kind of

sediment deposited and the kinds of soil that formed in it largely depend on the source

of the sediment and the velocity of the streams. Soils that formed in ancient fluvial

sediments are Navina and Kirkland. Soils that formed in recent fluvial sediments are

Gaddy, Lawrie, and Yahola.

Time

As a factor in soil formation, time is difficult to measure in years. The length of time

needed for the development of genetic horizons depends on the intensity and the

interactions of the other soil-forming factors in promoting the loss, gain, transfer, or

transformation of the constituents that make up soil horizons. Soils that have no

definite genetic horizons are young or immature. Mature or older soils are in

equilibrium with their environment and tend to have well defined horizons.

The soils in Logan County range from young to old. Bethany and Renfrow soils are

examples of old soils. Coyle and Teller soils are younger, but they have well expressed

horizons. Darsil and Masham soils are considered young soils. Although these soils

have had sufficient time to develop well expressed horizons, geological erosion has

taken away soil material almost as fast as it forms because the soils are in sloping

areas. Gaddy and Yahola soils are young soils that formed in recent sediments on

flood plains. These soils show little horizon development.

Geology

Kenneth S. Johnson, Oklahoma Geological Survey, the University of Oklahoma, Norman, Oklahoma,

helped prepare this section.

The surface geology of Logan County is fairly simple. It is shown on the surface

geology map of the county included with the soil maps. The outcropping rocks in this

county consist of reddish brown sandstones and shales of Permian age. These

sediments were deposited near the shores of shallow seas that once covered much of

western Oklahoma. In many parts of the county, these sedimentary rocks are mantled

by unconsolidated alluvium of Quaternary age that was laid down by ancient or

modern rivers and streams. Permian sandstones provide major fresh-water aquifers in

the southern part of the county. Unconsolidated alluvium near the Cimarron River and

its tributaries also yields fresh ground water. The outcropping Permian strata overlie

older sedimentary rocks that are important petroleum reservoirs in many parts of

Oklahoma.

Subsurface rock units of sedimentary origin are about 8,000 feet thick in the

northeastern part of Logan County and about 10,000 feet thick in the southwestern

part. These strata rest upon a “basement” of granite and other igneous or metamorphic

rocks that extend 20 to 25 miles down into the earth’s crust. These subsurface

sedimentary rocks were deposited in great, shallow seas that bordered the deep

sedimentary basins of western Oklahoma, including the Anadarko Basin to the

southwest and the Arkoma Basin to the southeast. These seas inundated the survey

area intermittently from the Cambrian Period of geologic time (about 525 million years

ago) through Late Permian time (about 250 million years ago). Logan County is
Logan County, Oklahoma 581

considered part of the Central Oklahoma Arch, an area that was gently uplifted in

several episodes prior to Permian time. The Nemaha Uplift, a series of buried, faultbounded uplift blocks, formed during Pennsylvanian time. It extends in a north-south

direction in the subsurface material in the western part of the county.

The outcropping rocks in Logan County were deposited during the Late Permian

Period (about 250 to 270 million years ago). Sands, silts, and clays were eroded from

marginal land areas that existed during this time in eastern Oklahoma and adjacent

parts of Arkansas. These materials were transported generally to the west and

northwest by streams and rivers that flowed, at the time, toward the large inland sea

(Anadarko Basin) that covered most of western Oklahoma. Logan County was close to

the shoreline of this ancient sea, and, therefore, was the site for deposition of

interbedded sandstones, siltstones, and shales in alternating riverine, deltaic, tidal-flat,

and shallow marine environments.

Permian rock outcrops are typically red or reddish brown with local light gray or

greenish gray variations. The red color in these sedimentary rocks primarily results

from the presence of iron oxide minerals (e.g., hematite), which are commonly

distributed uniformly throughout the rocks. Iron oxides generally do not occur in

sedimentary rocks having grayish, greenish, or whitish colors. Soils that developed

from Permian reddish rocks tend to retain the hematite stain of the parent material.

This tendency explains the red color of most of the soils in Logan County.

The oldest rocks exposed in the survey area crop out along the eastern county

boundary and are overlain by successively younger Permian strata to the west. These

outcropping strata dip gently to the west at an angle of less than 1 degree, as shown in

the east-west cross section included with the surface geology map.

The parent materials of soils are generally the product of weathering and

disaggregation of outcropping rock units. As such, there is a close relationship

between the physical and chemical properties of these rock formations and the soils

that develop upon them. Therefore, a description of the rock units that crop out in the

county can help to explain the character and distribution of soils.

The oldest rock unit exposed in Logan County is the Wellington Formation. The

Wellington sediments in Logan County consist mainly of red-brown shales with

interbeds of red-brown and orange-brown sandstones and siltstones. Sandstone beds

in the Wellington Formation and the overlying Garber Sandstone comprise the wellknown Garber-Wellington aquifer, which is discussed below. The Wellington sediments

are exposed only in the eastern part of the county, where the Cimarron River and

tributaries of the Cimarron and Deep Fork Rivers cut deeply through overlying strata.

The Wellington Formation is generally 400 to 500 feet thick in this area, although only

the uppermost 200 feet of the Wellington sediments are exposed in Logan County.

Landscapes in areas of the Wellington Formation are characterized by gently rolling

hills that are forested with scrub oak, blackjack oak, and other small, slow-growing

deciduous trees. Sandy soils and moderate amounts of rainfall (the average annual

precipitation is about 32 inches) favor this type of vegetation.

The Wellington Formation outcrops south of the Cimarron River are the parent

material for soils in the Stephenville-Darsil-Harrah and Grainola-Masham-Ironmound

general soil map units. The Wellington outcrops north of the Cimarron River are the

parent material for soils in the Coyle-Ironmound-Zaneis, Grainola-Renfrow-Piedmont,

and Grainola-Masham-Ironmound general soil map units. These loamy and clayey

soils formed in alluvium, colluvium, and residuum weathered from sandstone, shale,

and interbedded sandstone and shale. The soils are shallow to very deep, are well

drained to excessively drained, and occur on nearly level to steep slopes. Soils that

developed in Wellington sandstones typically are moderately permeable, and those

that developed in Wellington shales are very slowly permeable.

The Garber Sandstone conformably overlies the Wellington Formation. This

formation crops out over a large portion of Logan County. The Garber Sandstone
582 Soil Survey

deposits primarily consist of orange-brown to red-brown sandstone beds that are

irregularly interlayered with red-brown shales and siltstones, with the amount of shale

increasing northward. In Logan County, the total thickness of the Garber Sandstone

ranges from about 400 to 500 feet. The Garber Sandstone outcrop area is

characterized by gently rolling hills that are covered with prairie grasses. Steeper side

slopes associated with drainageways are covered with blackjack oak, post oak, cedar,

and elm.

Nearly half of the Garber Sandstone outcrop area in Logan County is the parent

material for soils in the Coyle-Ironmound-Zaneis general soil map unit. The remainder

of this outcrop provides parent material for soils in the Stephenville-Darsil-Harrah and

Grainola-Renfrow-Piedmont general soil map units. These loamy and clayey soils

formed primarily in alluvium, colluvium, and residuum weathered from sandstone or

interbedded sandstone and shale. The soils are shallow to very deep, well drained to

excessively drained, and very gently sloping to steep. Because the soils developed

mainly from the Garber Sandstone, they typically are moderately permeable. The

Kirkland-Renfrow general soil map unit coincides with the Garber Sandstone outcrops

in the northwestern and southwestern parts of Logan County. Kirkland and Renfrow

soils formed in shale or clayey alluvium overlying shale or siltstone and are very slowly

permeable. In this area, Kirkland and Renfrow soils probably developed in a thin layer

of overlying Hennessey Group shales that were not completely eroded from above the

Garber Sandstone. This same situation may also apply to areas of the GrainolaRenfrow-Piedmont general soil map unit.

The Hennessey Group conformably overlies the Garber Sandstone and has an

outcrop area that is characterized by nearly level and gently sloping grass-covered

prairies. This prairie landscape is largely barren of trees, except along intermittent

streams where precipitation runoff concentrates. The Hennessey Formation, which

crops out in only about 5 percent of Logan County, consists mainly of reddish brown

shale with some interbeds of siltstone and fine-grained sandstone. The total thickness

of Hennessey sediments west of Logan County is about 400 feet. The upper part of

the Hennessey Formation, however, has been removed by erosion and only the lower

50 to 150 feet remain in the western part of the county. The Hennessey Group is the

parent material for soils in the Grainola-Renfrow-Piedmont, Kirkland-Renfrow, and

Grainola-Masham-Ironmound general soil map units. These clayey soils formed mainly

in alluvium and residuum weathered from a shale section that may have minor

sandstone interbeds. The soils are moderately deep to very deep, are well drained,

and occur on nearly level to sloping landscapes (only locally are they steep). Soils that

developed from the Hennessey Group shales typically are very slowly permeable.

Alluvium and terrace deposits of Quaternary age in Logan County are generally 10

to 75 feet thick and consist mainly of sand, silt, and clay interbeds with few gravel

lenses. These sediments were eroded from Permian strata within and to the west of

Logan County and also from other rock units that occur west and northwest of the

county and within the Cimarron River drainage basin. Quaternary sediments

(deposited approximately within the past million years) were laid down mainly as flood

plain or alluvial deposits along major rivers and streams flowing across the county,

predominantly to the southeast, east, and northeast. In addition, some of the sands

and silts have been windblown into dunes.

Terrace deposits, which consist of older alluvium left behind after a river shifted

position or cut more deeply into underlying material, occur either as broad and level or

hummocky and undulating expanses that are topographically higher than, and

generally adjacent to, present-day flood plains. They occur mainly north of the

Cimarron River flood plain but also may occur in smaller areas near the other streams.

Terrace deposits are the parent material for soils in the Dougherty-Konawa-Derby

general soil map unit in the western part of the county and the Teller-Navina-Konawa

general soil map unit in the central part. Soils in both of these map units are typically
Logan County, Oklahoma 583

very deep, are well drained and somewhat excessively drained, and occur on nearly

level to moderately steep and rolling landscapes. These loamy and sandy soils formed

in Quaternary alluvial and windblown sediments. Because of the unconsolidated,

sandy nature of the parent material, these soils commonly are moderately permeable

or permeable.

Alluvial deposits are the unconsolidated sediments in stream channels or on flood

plains of modern-day rivers and streams, such as the main stem and tributaries of the

Cimarron River and tributaries of the Deep Fork River in the southeastern part of

Logan County. Cimarron River alluvium is the parent material for soils in the YaholaGaddy general soil map unit. Alluvium associated with tributaries of the Cimarron and

Deep Fork Rivers is parent material for soils in the Ashport-Pulaski-Lawrie general soil

map unit. Soils that developed in Quaternary alluvium in this area are typically very

deep, well drained and somewhat excessively drained, and nearly level and gently

undulating. The Yahola-Gaddy and Ashport-Pulaski-Lawrie general soil map units are

characterized by loamy surface and subsoil textures, although soils along the

Cimarron River also have significant amounts of sandy loams and sands. Because of

the unconsolidated, sandy nature of these soils, they typically are moderately

permeable to rapidly permeable.

585

(1) American Association of State Highway and Transportation Officials (AASHTO).

1998. Standard specifications for transportation materials and methods of

sampling and testing. 19th ed.

(2) American Society for Testing and Materials (ASTM). 1998. Standard

classification of soils for engineering purposes. ASTM Standard D 2487.

(3) Bingham, R.H., and D.L. Bergman. 1980. Reconnaissance of the water

resources of the Enid Quadrangle, north-central Oklahoma. Ok. Geol. Surv.

Hydro. Atlas HA-7, 4 sheets, scale 1:250,000.

(4) Bingham, R.H., and R.L. Moore. 1975. Reconnaissance of the water resources

of the Oklahoma City Quadrangle, central Oklahoma. Ok. Geol. Surv. Hydro.

Atlas HA-4, 4 sheets, scale 1:250,000.

(5) Fenneman, N.M. 1930. Physiographic divisions of the United States. U.S. Geol.

Surv. Map.

(6) United States Department of Agriculture. 1960. Soil survey of Logan County,

Oklahoma.

(7) United States Department of Agriculture, Natural Resources Conservation

Service. 1996. National soil survey handbook, title 430-VI. Soil Surv. Staff.

(Available in the State Office of the Natural Resources Conservation Service at

Stillwater, Oklahoma)

(8) United States Department of Agriculture, Natural Resources Conservation

Service. 1996. Soil survey laboratory methods manual. Soil Surv. Invest. Rep.

42.

(9) United States Department of Agriculture, Natural Resources Conservation

Service. 1998. Keys to soil taxonomy. 8th ed. Soil Surv. Staff.

(10) United States Department of Agriculture, Natural Resources Conservation

Service. 1999. Soil taxonomy: A basic system of soil classification for making

and interpreting soil surveys. 2nd ed. Soil Surv. Staff. U.S. Dep. Agric. Handb.

436.

(11) United States Department of Agriculture, Soil Conservation Service. 1961. Land

capability classification. U.S. Dep. Agric. Handb. 210.

(12) United States Department of Agriculture, Soil Conservation Service. 1993. Soil

survey manual. U.S. Dep. Agric. Handb. 18.

References

587

Aeration, soil. The exchange of air in soil with air from the atmosphere. The air in a

well aerated soil is similar to that in the atmosphere; the air in a poorly aerated soil

is considerably higher in carbon dioxide and lower in oxygen.

Aggregate, soil. Many fine particles held in a single mass or cluster. Natural soil

aggregates, such as granules, blocks, or prisms, are called peds. Clods are

aggregates produced by tillage or logging.

Alkali (sodic) soil. A soil having so high a degree of alkalinity (pH 8.5 or higher) or so

high a percentage of exchangeable sodium (15 percent or more of the total

exchangeable bases), or both, that plant growth is restricted.

Alluvium. Material, such as gravel, sand, silt, or clay, deposited on land by streams.

Alpha,alpha-dipyridyl. A dye that when dissolved in 1N ammonium acetate is used to

detect the presence of reduced iron (Fe II) in the soil. A positive reaction indicates

a type of redoximorphic feature.

Animal unit month (AUM). The amount of forage required by one mature cow of

approximately 1,000 pounds weight, with or without a calf, for 1 month.

Aquic conditions. Current soil wetness characterized by saturation, reduction, and

redoximorphic features.

Area reclaim (in tables). An area difficult to reclaim after the removal of soil for

construction and other uses. Revegetation and erosion control are extremely

difficult.

Argillic horizon. A subsoil horizon characterized by an accumulation of illuvial clay.

Aspect. The direction in which a slope faces.

Available water capacity (available moisture capacity). The capacity of soils to hold

water available for use by most plants. It is commonly defined as the difference

between the amount of soil water at field moisture capacity and the amount at

wilting point. It is commonly expressed as inches of water per inch of soil. The

capacity, in inches, in a 60-inch profile or to a limiting layer is expressed as:

Very low ..............................................................0 to 3

Low ...................................................................... 3 to 6

Moderate ............................................................. 6 to 9

High ...................................................................9 to 12

Very high ................................................ more than 12

Backslope. The geomorphic component that forms the steepest inclined surface and

principal element of many hillsides. Backslopes in profile are commonly steep, are

linear, and may or may not include cliff segments.

Badland. Steep or very steep, commonly nonstony, barren land dissected by many

intermittent drainage channels. Badland is most common in semiarid and arid

regions where streams are entrenched in soft geologic material. Local relief

generally ranges from 25 to 500 feet. Runoff potential is very high, and geologic

erosion is active.

Base saturation. The degree to which material having cation-exchange properties is

saturated with exchangeable bases (sum of Ca, Mg, Na, and K), expressed as a

percentage of the total cation-exchange capacity.

Glossary
588 Soil Survey

Bedding planes. Fine strata, less than 5 millimeters thick, in unconsolidated alluvial,

eolian, lacustrine, or marine sediment.

Bedrock. The solid rock that underlies the soil and other unconsolidated material or

that is exposed at the surface.

Bench terrace. A raised, level or nearly level strip of earth constructed on or nearly on

a contour, supported by a barrier of rocks or similar material, and designed to

make the soil suitable for tillage and to prevent accelerated erosion.

Blowout. A shallow depression from which all or most of the soil material has been

removed by wind. A blowout has a flat or irregular floor formed by a resistant layer

or by an accumulation of pebbles or cobbles. In some blowouts the water table is

exposed.

Bottom land. The normal flood plain of a stream, subject to flooding.

Boulders. Rock fragments larger than 2 feet (60 centimeters) in diameter.

Breaks. The steep and very steep broken land at the border of an upland summit that

is dissected by ravines.

Brush management. Use of mechanical, chemical, or biological methods to make

conditions favorable for reseeding or to reduce or eliminate competition from

woody vegetation and thus allow understory grasses and forbs to recover. Brush

management increases forage production and thus reduces the hazard of erosion.

It can improve the habitat for some species of wildlife.

Butte. An isolated small mountain or hill with steep or precipitous sides and a top

variously flat, rounded, or pointed that may be a residual mass isolated by erosion

or an exposed volcanic neck.

Calcareous soil. A soil containing enough calcium carbonate (commonly combined

with magnesium carbonate) to effervesce visibly when treated with cold, dilute

hydrochloric acid.

Caliche. A more or less cemented deposit of calcium carbonate in soils of warmtemperate, subhumid to arid areas. Caliche occurs as soft, thin layers in the soil or

as hard, thick beds directly beneath the solum, or it is exposed at the surface by

erosion.

Canyon. A long, deep, narrow, very steep-sided valley with high, precipitous walls in

an area of high local relief.

Capillary water. Water held as a film around soil particles and in tiny spaces between

particles. Surface tension is the adhesive force that holds capillary water in the

soil.

Catena. A sequence of soils on a landscape that formed in similar kinds of parent

material but have different characteristics as a result of differences in relief and

drainage.

Cation. An ion carrying a positive charge of electricity. The common soil cations are

calcium, potassium, magnesium, sodium, and hydrogen.

Cation-exchange capacity. The total amount of exchangeable cations that can be

held by the soil, expressed in terms of milliequivalents per 100 grams of soil at

neutrality (pH 7.0) or at some other stated pH value. The term, as applied to soils,

is synonymous with base-exchange capacity but is more precise in meaning.

Cemented. Material in an air-dry test specimen that does not slake after being

immersed in water for 1 hour. Cemented soil material has a brittle, hard

consistence caused by some cementing agent other than clay. Calcium carbonate,

silica, or oxides or salts of iron and aluminum are common cementing materials.

Channeled. Refers to a drainage area in which natural meandering or repeated

branching and convergence of a streambed have created deeply incised cuts,

either active or abandoned, in alluvial material.

Channery soil material. Soil material that is, by volume, 15 to 35 percent thin, flat

fragments of sandstone, shale, slate, limestone, or schist as much as 6 inches (15

centimeters) along the longest axis. A single piece is called a channer.
Logan County, Oklahoma 589

Chemical treatment. Control of unwanted vegetation through the use of chemicals.

Chiseling. Tillage with an implement having one or more soil-penetrating points that

shatter or loosen hard, compacted layers to a depth below normal plow depth.

Clay. As a soil separate, the mineral soil particles less than 0.002 millimeter in

diameter. As a soil textural class, soil material that is 40 percent or more clay, less

than 45 percent sand, and less than 40 percent silt.

Clay depletions. Low-chroma zones having a low content of iron, manganese, and

clay because of the chemical reduction of iron and manganese and the removal of

iron, manganese, and clay. A type of redoximorphic depletion.

Clayey soil. Silty clay, sandy clay, or clay.

Clay film. A thin coating of oriented clay on the surface of a soil aggregate or lining

pores or root channels. Synonyms: clay coating, clay skin.

Claypan. A slowly permeable soil horizon that contains much more clay than the

horizons above it. A claypan is commonly hard when dry and plastic or stiff when

wet.

Climax plant community. The stabilized plant community on a particular site. The

plant cover reproduces itself and does not change so long as the environment

remains the same.

Closed depression. A low area completely surrounded by higher ground and having

no natural outlet.

Coarse fragments. Mineral or rock particles larger than 2 millimeters in diameter.

Coarse textured soil. Sand or loamy sand.

Cobble (or cobblestone). A rounded or partly rounded fragment of rock 3 to 10

inches (7.6 to 25 centimeters) in diameter.

Cobbly soil material. Material that is 15 to 35 percent, by volume, rounded or partially

rounded rock fragments 3 to 10 inches (7.6 to 25 centimeters) in diameter. Very

cobbly soil material has 35 to 60 percent of these rock fragments, and extremely

cobbly soil material has more than 60 percent.

Colluvium. Soil material or rock fragments, or both, moved by creep, slide, or local

wash and deposited at the base of steep slopes.

Complex slope. Irregular or variable slope. Planning or establishing terraces,

diversions, and other water-control structures on a complex slope is difficult.

Complex, soil. A map unit of two or more kinds of soil or miscellaneous areas in such

an intricate pattern or so small in area that it is not practical to map them

separately at the selected scale of mapping. The pattern and proportion of the

soils or miscellaneous areas are somewhat similar in all areas.

Compressible (in tables). Excessive decrease in volume of soft soil under load.

Concretions. Cemented bodies with crude internal symmetry organized around a

point, a line, or a plane. They typically take the form of concentric layers visible to

the naked eye. Calcium carbonate, iron oxide, and manganese oxide are common

compounds making up concretions. If formed in place, concretions of iron oxide or

manganese oxide are generally considered a type of redoximorphic concentration.

Conglomerate. A coarse-grained, clastic rock composed of rounded or subangular

rock fragments more than 2 millimeters in diameter. It commonly has a matrix of

sand and finer textured material. Conglomerate is the consolidated equivalent of

gravel.

Conservation cropping system. Growing crops in combination with needed cultural

and management practices. In a good conservation cropping system, the soilimproving crops and practices more than offset the effects of the soil-depleting

crops and practices. Cropping systems are needed on all tilled soils. Soilimproving practices in a conservation cropping system include the use of rotations

that contain grasses and legumes and the return of crop residue to the soil. Other

practices include the use of green manure crops of grasses and legumes, proper

tillage, adequate fertilization, and weed and pest control.
590 Soil Survey

Conservation tillage. A tillage system that does not invert the soil and that leaves a

protective amount of crop residue on the surface throughout the year.

Consistence, soil. Refers to the degree of cohesion and adhesion of soil material and

its resistance to deformation when ruptured. Consistence includes resistance of

soil material to rupture and to penetration; plasticity, toughness, and stickiness of

puddled soil material; and the manner in which the soil material behaves when

subject to compression. Terms describing consistence are defined in the “Soil

Survey Manual.”

Consolidated sandstone. Sandstone that disperses within a few hours when

fragments are placed in water. The fragments are extremely hard or very hard

when dry, are not easily crushed, and cannot be textured by the usual field

method.

Consolidated shale. Shale that disperses within a few hours when fragments are

placed in water. The fragments are extremely hard or very hard when dry and are

not easily crushed.

Consolidated siltstone. Siltstone that disperses within a few hours when fragments

are placed in water. The fragments are extremely hard or very hard when dry and

are not easily crushed.

Contour stripcropping. Growing crops in strips that follow the contour. Strips of grass

or close-growing crops are alternated with strips of clean-tilled crops or summer

fallow.

Control section. The part of the soil on which classification is based. The thickness

varies among different kinds of soil, but for many it is that part of the soil profile

between depths of 10 inches and 40 or 80 inches.

Coppice dune. A small dune of fine-grained soil material stabilized around shrubs or

small trees.

Corrosion. Soil-induced electrochemical or chemical action that dissolves or weakens

concrete or uncoated steel.

Cover crop. A close-growing crop grown primarily to improve and protect the soil

between periods of regular crop production, or a crop grown between trees and

vines in orchards and vineyards.

Cropping system. Growing crops according to a planned system of rotation and

management practices.

Crop residue management. Returning crop residue to the soil, which helps to

maintain soil structure, organic matter content, and fertility and helps to control

erosion.

Cuesta. A hill or ridge that has a gentle slope on one side and a steep slope on the

other; specifically, an asymmetric, homoclinal ridge capped by resistant rock

layers of slight or moderate dip.

Cutbanks cave (in tables). The walls of excavations tend to cave in or slough.

Decreasers. The most heavily grazed climax range plants. Because they are the most

palatable, they are the first to be destroyed by overgrazing.

Deep soil. A soil that is 40 to 60 inches deep over bedrock or to other material that

restricts the penetration of plant roots.

Deferred grazing. Postponing grazing or resting grazing land for a prescribed period.

Dense layer (in tables). A very firm, massive layer that has a bulk density of more than

1.8 grams per cubic centimeter. Such a layer affects the ease of digging and can

affect filling and compacting.

Depth, soil. Generally, the thickness of the soil over bedrock. Very deep soils are more

than 60 inches deep over bedrock; deep soils, 40 to 60 inches; moderately deep

soils, 20 to 40 inches; shallow soils, 10 to 20 inches; and very shallow soils, less

than 10 inches.

Depth to rock (in tables). Bedrock is too near the surface for the specified use.
Logan County, Oklahoma 591

Dip slope. A slope of the land surface, roughly determined by and approximately

conforming to the dip of the underlying bedrock.

Diversion (or diversion terrace). A ridge of earth, generally a terrace, built to protect

downslope areas by diverting runoff from its natural course.

Drainage class (natural). Refers to the frequency and duration of wet periods under

conditions similar to those under which the soil formed. Alterations of the water

regime by human activities, either through drainage or irrigation, are not a

consideration unless they have significantly changed the morphology of the soil.

Seven classes of natural soil drainage are recognized—excessively drained,

somewhat excessively drained, well drained, moderately well drained, somewhat

poorly drained, poorly drained, and very poorly drained. These classes are defined

in the “Soil Survey Manual.”

Drainage, surface. Runoff, or surface flow of water, from an area.

Drainageway. An area of ground at a lower elevation than the surrounding ground and

in which water collects and is drained to a closed depression or lake or to a

drainageway at a lower elevation. A drainageway may or may not have distinctly

incised channels at its upper reaches or throughout its course.

Draw. A small stream valley that generally is more open and has broader bottom land

than a ravine or gulch.

Dune. A mound, ridge, or hill of loose, windblown granular material (generally sand),

either bare or covered with vegetation.

Ecological site. An area where climate, soil, and relief are sufficiently uniform to

produce a distinct natural plant community. An ecological site is the product of all

the environmental factors responsible for its development. It is typified by an

association of species that differ from those on other ecological sites in kind

and/or proportion of species or in total production.

Eluviation. The movement of material in true solution or colloidal suspension from one

place to another within the soil. Soil horizons that have lost material through

eluviation are eluvial; those that have received material are illuvial.

Endosaturation. A type of saturation of the soil in which all horizons between the

upper boundary of saturation and a depth of 2 meters are saturated.

Eolian soil material. Earthy parent material accumulated through wind action;

commonly refers to sandy material in dunes or to loess in blankets on the surface.

Ephemeral stream. A stream, or reach of a stream, that flows only in direct response

to precipitation. It receives no long-continued supply from melting snow or other

source, and its channel is above the water table at all times.

Episaturation. A type of saturation indicating a perched water table in a soil in which

saturated layers are underlain by one or more unsaturated layers within 2 meters

of the surface.

Erosion. The wearing away of the land surface by water, wind, ice, or other geologic

agents and by such processes as gravitational creep.

Erosion (geologic). Erosion caused by geologic processes acting over long

geologic periods and resulting in the wearing away of mountains and the building

up of such landscape features as flood plains and coastal plains. Synonym: natural

erosion.

Erosion (accelerated). Erosion much more rapid than geologic erosion, mainly as

a result of human or animal activities or of a catastrophe in nature, such as a fire,

that exposes the surface.

Escarpment. A relatively continuous and steep slope or cliff breaking the general

continuity of more gently sloping land surfaces and resulting from erosion or

faulting. Synonym: scarp.

Excess fines (in tables). Excess silt and clay in the soil. The soil does not provide a

source of gravel or sand for construction purposes.
592 Soil Survey

Excess lime (in tables). Excess carbonates in the soil that restrict the growth of some

plants.

Excess salts (in tables). Excess water-soluble salts in the soil that restrict the growth

of most plants.

Excess sodium (in tables). Excess exchangeable sodium in the soil. The resulting

poor physical properties restrict the growth of plants.

Fallow. Cropland left idle in order to restore productivity through accumulation of

moisture. Summer fallow is common in regions of limited rainfall where cereal

grain is grown. The soil is tilled for at least one growing season for weed control

and decomposition of plant residue.

Fast intake (in tables). The rapid movement of water into the soil.

Fertility, soil. The quality that enables a soil to provide plant nutrients, in adequate

amounts and in proper balance, for the growth of specified plants when light,

moisture, temperature, tilth, and other growth factors are favorable.

Fibric soil material (peat). The least decomposed of all organic soil material. Peat

contains a large amount of well preserved fiber that is readily identifiable

according to botanical origin. Peat has the lowest bulk density and the highest

water content at saturation of all organic soil material.

Field moisture capacity. The moisture content of a soil, expressed as a percentage

of the ovendry weight, after the gravitational, or free, water has drained away; the

field moisture content 2 or 3 days after a soaking rain; also called normal field

capacity, normal moisture capacity, or capillary capacity.

Fine textured soil. Sandy clay, silty clay, or clay.

First bottom. The normal flood plain of a stream, subject to frequent or occasional

flooding.

Flaggy soil material. Material that is, by volume, 15 to 35 percent flagstones. Very

flaggy soil material has 35 to 60 percent flagstones, and extremely flaggy soil

material has more than 60 percent flagstones.

Flagstone. A thin fragment of sandstone, limestone, slate, shale, or (rarely) schist 6 to

15 inches (15 to 38 centimeters) long.

Flood plain. A nearly level alluvial plain that borders a stream and is subject to

flooding unless protected artificially.

Fluvial. Of or pertaining to rivers; produced by river action, as a fluvial plain.

Footslope. The inclined surface at the base of a hill.

Forb. Any herbaceous plant not a grass or a sedge.

Fragile (in tables). A soil that is easily damaged by use or disturbance.

Genesis, soil. The mode of origin of the soil. Refers especially to the processes or

soil-forming factors responsible for the formation of the solum, or true soil, from

the unconsolidated parent material.

Gilgai. Commonly, a succession of microbasins and microknolls in nearly level areas

or of microvalleys and microridges parallel with the slope. Typically, the microrelief

of clayey soils that shrink and swell considerably with changes in moisture

content.

Gleyed soil. Soil that formed under poor drainage, resulting in the reduction of iron

and other elements in the profile and in gray colors.

Grassed waterway. A natural or constructed waterway, typically broad and shallow,

seeded to grass as protection against erosion. Conducts surface water away from

cropland.

Gravel. Rounded or angular fragments of rock as much as 3 inches (2 millimeters to

7.6 centimeters) in diameter. An individual piece is a pebble.

Gravelly soil material. Material that is 15 to 35 percent, by volume, rounded or

angular rock fragments, not prominently flattened, as much as 3 inches (7.6

centimeters) in diameter. Very gravelly soil material has 35 to 60 percent of these

rock fragments, and extremely gravelly soil material has more than 60 percent.
Logan County, Oklahoma 593

Green manure crop (agronomy). A soil-improving crop grown to be plowed under in

an early stage of maturity or soon after maturity.

Ground water. Water filling all the unblocked pores of the material below the water

table.

Gully. A miniature valley with steep sides cut by running water and through which

water ordinarily runs only after rainfall. The distinction between a gully and a rill is

one of depth. A gully generally is an obstacle to farm machinery and is too deep to

be obliterated by ordinary tillage; a rill is of lesser depth and can be smoothed over

by ordinary tillage.

Gypsum. A mineral consisting of hydrous calcium sulfate.

Hard bedrock. Bedrock that cannot be excavated except by blasting or by the use of

special equipment that is not commonly used in construction.

Hardpan. A hardened or cemented soil horizon, or layer. The soil material is sandy,

loamy, or clayey and is cemented by iron oxide, silica, calcium carbonate, or other

substance.

Heavy metal. Inorganic substances that are solid at ordinary temperatures and are

not soluble in water. They form oxides and hydroxides that are basic. Examples

are copper, iron, cadmium, zinc, manganese, lead, and arsenic.

Hemic soil material (mucky peat). Organic soil material intermediate in degree of

decomposition between the less decomposed fibric material and the more

decomposed sapric material.

High-residue crops. Such crops as small grain and corn used for grain. If properly

managed, residue from these crops can be used to control erosion until the next

crop in the rotation is established. These crops return large amounts of organic

matter to the soil.

Hill. A natural elevation of the land surface, rising as much as 1,000 feet above

surrounding lowlands, commonly of limited summit area and having a well defined

outline; hillsides generally have slopes of more than 15 percent. The distinction

between a hill and a mountain is arbitrary and is dependent on local usage.

Horizon, soil. A layer of soil, approximately parallel to the surface, having distinct

characteristics produced by soil-forming processes. In the identification of soil

horizons, an uppercase letter represents the major horizons. Numbers or

lowercase letters that follow represent subdivisions of the major horizons. An

explanation of the subdivisions is given in the “Soil Survey Manual.” The major

horizons of mineral soil are as follows:

O horizon.—An organic layer of fresh and decaying plant residue.

A horizon.—The mineral horizon at or near the surface in which an accumulation

of humified organic matter is mixed with the mineral material. Also, a plowed

surface horizon, most of which was originally part of a B horizon.

E horizon.—The mineral horizon in which the main feature is loss of silicate clay,

iron, aluminum, or some combination of these.

B horizon.—The mineral horizon below an A horizon. The B horizon is in part a

layer of transition from the overlying A to the underlying C horizon. The B horizon

also has distinctive characteristics, such as (1) accumulation of clay, sesquioxides,

humus, or a combination of these; (2) prismatic or blocky structure; (3) redder or

browner colors than those in the A horizon; or (4) a combination of these.

C horizon.—The mineral horizon or layer, excluding indurated bedrock, that is little

affected by soil-forming processes and does not have the properties typical of the

overlying soil material. The material of a C horizon may be either like or unlike that

in which the solum formed. If the material is known to differ from that in the solum,

an Arabic numeral, commonly a 2, precedes the letter C.

Cr horizon.—Soft, consolidated bedrock beneath the soil.

R layer.—Consolidated bedrock beneath the soil. The bedrock commonly

underlies a C horizon, but it can be directly below an A or a B horizon.
594 Soil Survey

Humus. The well decomposed, more or less stable part of the organic matter in

mineral soils.

Hydrologic soil groups. Refers to soils grouped according to their runoff potential.

The soil properties that influence this potential are those that affect the minimum

rate of water infiltration on a bare soil during periods after prolonged wetting when

the soil is not frozen. These properties are depth to a seasonal high water table,

the infiltration rate and permeability after prolonged wetting, and depth to a very

slowly permeable layer. The slope and the kind of plant cover are not considered

but are separate factors in predicting runoff.

Igneous rock. Rock formed by solidification from a molten or partially molten state.

Major varieties include plutonic and volcanic rock. Examples are andesite, basalt,

and granite.

Illuviation. The movement of soil material from one horizon to another in the soil

profile. Generally, material is removed from an upper horizon and deposited in a

lower horizon.

Impervious soil. A soil through which water, air, or roots penetrate slowly or not at all.

No soil is absolutely impervious to air and water all the time.

Increasers. Species in the climax vegetation that increase in amount as the more

desirable plants are reduced by close grazing. Increasers commonly are the

shorter plants and the less palatable to livestock.

Infiltration. The downward entry of water into the immediate surface of soil or other

material, as contrasted with percolation, which is movement of water through soil

layers or material.

Infiltration capacity. The maximum rate at which water can infiltrate into a soil under

a given set of conditions.

Infiltration rate. The rate at which water penetrates the surface of the soil at any given

instant, usually expressed in inches per hour. The rate can be limited by the

infiltration capacity of the soil or the rate at which water is applied at the surface.

Intake rate. The average rate of water entering the soil under irrigation. Most soils

have a fast initial rate; the rate decreases with application time. Therefore, intake

rate for design purposes is not a constant but is a variable depending on the net

irrigation application. The rate of water intake, in inches per hour, is expressed as

follows:

Less than 0.2 ................................................. very low

0.2 to 0.4 ................................................................ low

0.4 to 0.75 ........................................... moderately low

0.75 to 1.25 .................................................. moderate

1.25 to 1.75 ....................................... moderately high

1.75 to 2.5 ............................................................. high

More than 2.5 ............................................... very high

Intermittent stream. A stream, or reach of a stream, that flows for prolonged periods

only when it receives ground-water discharge or long, continued contributions from

melting snow or other surface and shallow subsurface sources.

Invaders. On range, plants that encroach into an area and grow after the climax

vegetation has been reduced by grazing. Generally, plants invade following

disturbance of the surface.

Iron depletions. Low-chroma zones having a low content of iron and manganese

oxide because of chemical reduction and removal, but having a clay content

similar to that of the adjacent matrix. A type of redoximorphic depletion.

Irrigation. Application of water to soils to assist in production of crops. Methods of

irrigation are:

Basin.—Water is applied rapidly to nearly level plains surrounded by levees or

dikes.
Logan County, Oklahoma 595

Border.—Water is applied at the upper end of a strip in which the lateral flow of

water is controlled by small earth ridges called border dikes, or borders.

Controlled flooding.—Water is released at intervals from closely spaced field

ditches and distributed uniformly over the field.

Corrugation.—Water is applied to small, closely spaced furrows or ditches in fields

of close-growing crops or in orchards so that it flows in only one direction.

Drip (or trickle).—Water is applied slowly and under low pressure to the surface of

the soil or into the soil through such applicators as emitters, porous tubing, or

perforated pipe.

Furrow.—Water is applied in small ditches made by cultivation implements.

Furrows are used for tree and row crops.

Sprinkler.—Water is sprayed over the soil surface through pipes or nozzles from a

pressure system.

Subirrigation.—Water is applied in open ditches or tile lines until the water table is

raised enough to wet the soil.

Wild flooding.—Water, released at high points, is allowed to flow onto an area

without controlled distribution.

Knoll. A small, low, rounded hill rising above adjacent landforms.

Lacustrine deposit. Material deposited in lake water and exposed when the water

level is lowered or the elevation of the land is raised.

Large stones (in tables). Rock fragments 3 inches (7.6 centimeters) or more across.

Large stones adversely affect the specified use of the soil.

Leaching. The removal of soluble material from soil or other material by percolating

water.

Linear extensibility. Refers to the change in length of an unconfined clod as moisture

content is decreased from a moist to a dry state. Linear extensibility is used to

determine the shrink-swell potential of soils. It is an expression of the volume

change between the water content of the clod at 1/3- or 1/10-bar tension (33kPa or

10kPa tension) and oven dryness. Volume change is influenced by the amount and

type of clay minerals in the soil. The volume change is the percent change for the

whole soil. If it is expressed as a fraction, the resulting value is COLE, coefficient

of linear extensibility.

Liquid limit. The moisture content at which the soil passes from a plastic to a liquid

state.

Loam. Soil material that is 7 to 27 percent clay particles, 28 to 50 percent silt particles,

and less than 52 percent sand particles.

Loamy soil. Coarse sandy loam, sandy loam, fine sandy loam, very fine sandy loam,

loam, silt loam, silt, clay loam, sandy clay loam, or silty clay loam.

Low-residue crops. Such crops as corn used for silage, peas, beans, and potatoes.

Residue from these crops is not adequate to control erosion until the next crop in

the rotation is established. These crops return little organic matter to the soil.

Low strength. The soil is not strong enough to support loads.

Masses. Concentrations of substances in the soil matrix that do not have a clearly

defined boundary with the surrounding soil material and cannot be removed as a

discrete unit. Common compounds making up masses are calcium carbonate,

gypsum or other soluble salts, iron oxide, and manganese oxide. Masses

consisting of iron oxide or manganese oxide generally are considered a type of

redoximorphic concentration.

Mechanical treatment. Use of mechanical equipment for seeding, brush

management, and other management practices.

Medium textured soil. Very fine sandy loam, loam, silt loam, or silt.

Mesa. A broad, nearly flat-topped and commonly isolated upland mass characterized

by summit widths that are more than the heights of bounding erosional scarps.

Metamorphic rock. Rock of any origin altered in mineralogical composition, chemical
596 Soil Survey

composition, or structure by heat, pressure, and movement. Nearly all such rocks

are crystalline.

Microhigh. An area that is 2 to 12 inches higher than the adjacent microlow.

Microlow. An area that is 2 to 12 inches lower than the adjacent microhigh.

Mineral soil. Soil that is mainly mineral material and low in organic material. Its bulk

density is more than that of organic soil.

Minimum tillage. Only the tillage essential to crop production and prevention of soil

damage.

Miscellaneous area. An area that has little or no natural soil and supports little or no

vegetation.

Moderately coarse textured soil. Coarse sandy loam, sandy loam, or fine sandy

loam.

Moderately deep soil. A soil that is 20 to 40 inches deep over bedrock or to other

material that restricts the penetration of plant roots.

Moderately fine textured soil. Clay loam, sandy clay loam, or silty clay loam.

Mollic epipedon. A thick, dark, humus-rich surface horizon (or horizons) that has high

base saturation and pedogenic soil structure. It may include the upper part of the

subsoil.

Morphology, soil. The physical makeup of the soil, including the texture, structure,

porosity, consistence, color, and other physical, mineral, and biological properties

of the various horizons, and the thickness and arrangement of those horizons in

the soil profile.

Mottling, soil. Irregular spots of different colors that vary in number and size.

Descriptive terms are as follows: abundance—few, common, and many; size—fine,

medium, and coarse; and contrast—faint, distinct, and prominent. The size

measurements are of the diameter along the greatest dimension. Fine indicates

less than 5 millimeters (about 0.2 inch); medium, from 5 to 15 millimeters (about

0.2 to 0.6 inch); and coarse, more than 15 millimeters (about 0.6 inch).

Mudstone. Sedimentary rock formed by induration of silt and clay in approximately

equal amounts.

Munsell notation. A designation of color by degrees of three simple variables—hue,

value, and chroma. For example, a notation of 10YR 6/4 is a color with hue of

10YR, value of 6, and chroma of 4.

Natric horizon. A special kind of argillic horizon that contains enough exchangeable

sodium to have an adverse effect on the physical condition of the subsoil.

Neutral soil. A soil having a pH value between 6.6 and 7.3. (See Reaction, soil.)

Nodules. Cemented bodies lacking visible internal structure. Calcium carbonate, iron

oxide, and manganese oxide are common compounds making up nodules. If

formed in place, nodules of iron oxide or manganese oxide are considered types

of redoximorphic concentrations.

Nutrient, plant. Any element taken in by a plant essential to its growth. Plant nutrients

are mainly nitrogen, phosphorus, potassium, calcium, magnesium, sulfur, iron,

manganese, copper, boron, and zinc obtained from the soil and carbon, hydrogen,

and oxygen obtained from the air and water.

Organic matter. Plant and animal residue in the soil in various stages of

decomposition. The content of organic matter in the surface layer is described as

follows:

Very low .................................... less than 0.5 percent

Low .................................................. 0.5 to 1.0 percent

Moderately low ............................... 1.0 to 2.0 percent

Moderate ......................................... 2.0 to 4.0 percent

High ................................................. 4.0 to 8.0 percent

Very high ................................. more than 8.0 percent
Logan County, Oklahoma 597

Oxbow. The horseshoe-shaped channel of a former meander, remaining after the

stream formed a cutoff across a narrow meander neck.

Pan. A compact, dense layer in a soil that impedes the movement of water and the

growth of roots. For example, hardpan, fragipan, claypan, plowpan, and traffic pan.

Parent material. The unconsolidated organic and mineral material in which soil forms.

Pebble. See Gravel.

Ped. An individual natural soil aggregate, such as a granule, a prism, or a block.

Pedisediment. A thin layer of alluvial material that mantles an erosion surface and has

been transported to its present position from higher-lying areas of the erosion

surface.

Pedon. The smallest volume that can be called “a soil.” A pedon is three dimensional

and large enough to permit study of all horizons. Its area ranges from about 10 to

100 square feet (1 square meter to 10 square meters), depending on the variability

of the soil.

Percolation. The downward movement of water through the soil.

Percs slowly (in tables). The slow movement of water through the soil adversely

affects the specified use.

Permeability. The quality of the soil that enables water or air to move downward

through the profile. The rate at which a saturated soil transmits water is accepted

as a measure of this quality. In soil physics, the rate is referred to as “saturated

hydraulic conductivity,” which is defined in the “Soil Survey Manual.” In line with

conventional usage in the engineering profession and with traditional usage in

published soil surveys, this rate of flow continues to be expressed as

“permeability.” Terms describing permeability, measured in inches per hour, are as

follows:

Extremely slow ................................ 0.00 to 0.01 inch

Very slow ......................................... 0.01 to 0.06 inch

Slow ................................................... 0.06 to 0.2 inch

Moderately slow ................................... 0.2 to 0.6 inch

Moderate .................................. 0.6 inch to 2.0 inches

Moderately rapid .............................. 2.0 to 6.0 inches

Rapid ................................................. 6.0 to 20 inches

Very rapid ................................... more than 20 inches

Phase, soil. A subdivision of a soil series based on features that affect its use and

management, such as slope, stoniness, and flooding.

pH value. A numerical designation of acidity and alkalinity in soil. (See Reaction, soil.)

Piping (in tables). Formation of subsurface tunnels or pipelike cavities by water

moving through the soil.

Plasticity index. The numerical difference between the liquid limit and the plastic limit;

the range of moisture content within which the soil remains plastic.

Plastic limit. The moisture content at which a soil changes from semisolid to plastic.

Plateau. An extensive upland mass with relatively flat summit area that is considerably

elevated (more than 100 meters) above adjacent lowlands and separated from

them on one or more sides by escarpments.

Playa. The generally dry and nearly level lake plain that occupies the lowest parts of

closed depressional areas. Temporary flooding occurs primarily in response to

precipitation and runoff.

Plowpan. A compacted layer formed in the soil directly below the plowed layer.

Ponding. Standing water on soils in closed depressions. Unless the soils are

artificially drained, the water can be removed only by percolation or

evapotranspiration.

Poor filter (in tables). Because of rapid or very rapid permeability, the soil may not

adequately filter effluent from a waste disposal system.
598 Soil Survey

Poorly graded. Refers to a coarse-grained soil or soil material consisting mainly of

particles of nearly the same size. Because there is little difference in size of the

particles, density can be increased only slightly by compaction.

Poor outlets (in tables). Refers to areas where surface or subsurface drainage outlets

are difficult or expensive to install.

Potential native plant community. See Climax plant community.

Potential rooting depth (effective rooting depth). Depth to which roots could

penetrate if the content of moisture in the soil were adequate. The soil has no

properties restricting the penetration of roots to this depth.

Prescribed burning. Deliberately burning an area for specific management purposes,

under the appropriate conditions of weather and soil moisture and at the proper

time of day.

Productivity, soil. The capability of a soil for producing a specified plant or sequence

of plants under specific management.

Profile, soil. A vertical section of the soil extending through all its horizons and into

the parent material.

Proper grazing use. Grazing at an intensity that maintains enough cover to protect

the soil and maintain or improve the quantity and quality of the desirable

vegetation. This practice increases the vigor and reproduction capacity of the key

plants and promotes the accumulation of litter and mulch necessary to conserve

soil and water.

Rangeland. Land on which the potential natural vegetation is predominantly grasses,

grasslike plants, forbs, or shrubs suitable for grazing or browsing. It includes

natural grasslands, savannahs, many wetlands, some deserts, tundras, and areas

that support certain forb and shrub communities.

Reaction, soil. A measure of acidity or alkalinity of a soil, expressed in pH values. A

soil that tests to pH 7.0 is described as precisely neutral in reaction because it is

neither acid nor alkaline. The degrees of acidity or alkalinity, expressed as pH

values, are:

Ultra acid ................................................. less than 3.5

Extremely acid ............................................. 3.5 to 4.4

Very strongly acid ........................................ 4.5 to 5.0

Strongly acid ................................................ 5.1 to 5.5

Moderately acid ........................................... 5.6 to 6.0

Slightly acid ................................................. 6.1 to 6.5

Neutral ......................................................... 6.6 to 7.3

Slightly alkaline ........................................... 7.4 to 7.8

Moderately alkaline ..................................... 7.9 to 8.4

Strongly alkaline .......................................... 8.5 to 9.0

Very strongly alkaline .......................... 9.1 and higher

Red beds. Sedimentary strata that are mainly red and are made up largely of

sandstone and shale.

Redoximorphic concentrations. Nodules, concretions, soft masses, pore linings,

and other features resulting from the accumulation of iron or manganese oxide. An

indication of chemical reduction and oxidation resulting from saturation.

Redoximorphic depletions. Low-chroma zones from which iron and manganese

oxide or a combination of iron and manganese oxide and clay has been removed.

These zones are indications of the chemical reduction of iron resulting from

saturation.

Redoximorphic features. Redoximorphic concentrations, redoximorphic depletions,

reduced matrices, a positive reaction to alpha,alpha-dipyridyl, and other features

indicating the chemical reduction and oxidation of iron and manganese

compounds resulting from saturation.
Logan County, Oklahoma 599

Reduced matrix. A soil matrix that has low chroma in situ because of chemically

reduced iron (Fe II). The chemical reduction results from nearly continuous

wetness. The matrix undergoes a change in hue or chroma within 30 minutes after

exposure to air as the iron is oxidized (Fe III). A type of redoximorphic feature.

Regolith. The unconsolidated mantle of weathered rock and soil material on the

earth’s surface; the loose earth material above the solid rock.

Relict stream terrace. One of a series of platforms in or adjacent to a stream valley

that formed prior to the current stream system.

Relief. The elevations or inequalities of a land surface, considered collectively.

Residuum (residual soil material). Unconsolidated, weathered or partly weathered

mineral material that accumulated as consolidated rock disintegrated in place.

Ridge. A long, narrow elevation of the land surface. It generally is sharp crested and

forms an extended upland between valleys.

Rill. A steep-sided channel resulting from accelerated erosion. A rill is generally a few

inches deep and not wide enough to be an obstacle to farm machinery.

Riser. The relatively short, steeply sloping area below a terrace tread that grades to a

lower terrace tread or base level.

Riverwash. Unstable areas of sandy, silty, clayey, or gravelly sediments. These areas

are flooded, washed, and reworked by rivers so frequently that they support little

or no vegetation.

Road cut. A sloping surface produced by mechanical means during road construction.

It is commonly on the uphill side of the road.

Rock fragments. Rock or mineral fragments having a diameter of 2 millimeters or

more; for example, pebbles, cobbles, stones, and boulders.

Rock outcrop. Exposures of bare bedrock other than lava flows and rock-lined pits.

Rooting depth (in tables). Shallow root zone. The soil is shallow over a layer that

greatly restricts roots.

Root zone. The part of the soil that can be penetrated by plant roots.

Rubble land. Areas that have more than 90 percent of the surface covered by stones

or boulders. Voids contain no soil material and virtually no vegetation other than

lichens. The areas commonly are at the base of mountain slopes, but some are on

mountain slopes as deposits of cobbles, stones, and boulders left by Pleistocene

glaciation or by periglacial phenomena.

Runoff. The precipitation discharged into stream channels from an area. The water

that flows off the surface of the land without sinking into the soil is called surface

runoff. Water that enters the soil before reaching surface streams is called groundwater runoff or seepage flow from ground water.

Saline soil. A soil containing soluble salts in an amount that impairs the growth of

plants. A saline soil does not contain excess exchangeable sodium.

Salinity. The electrical conductivity of a saline soil. It is expressed, in millimhos per

centimeter, as follows:

Nonsaline ............................................................ 0 to 2

Very slightly saline ............................................. 2 to 4

Slightly saline .....................................................4 to 8

Moderately saline .............................................8 to 16

Strongly saline ....................................... more than 16

Sand. As a soil separate, individual rock or mineral fragments ranging from 0.05

millimeter to 2.0 millimeters in diameter. Most sand grains consist of quartz. As a

soil textural class, a soil that is 85 percent or more sand and not more than 10

percent clay.

Sandstone. Sedimentary rock containing dominantly sand-sized particles.

Sandy soil. Sand or loamy sand.

Sapric soil material (muck). The most highly decomposed of all organic soil material.
600 Soil Survey

Muck has the least amount of plant fiber, the highest bulk density, and the lowest

water content at saturation of all organic soil material.

Saturation. Wetness characterized by zero or positive pressure of the soil water.

Under conditions of saturation, the water will flow from the soil matrix into an

unlined auger hole.

Scarification. The act of abrading, scratching, loosening, crushing, or modifying the

surface to increase water absorption or to provide a more tillable soil.

Second bottom. The first terrace above the normal flood plain (or first bottom) of a

river.

Sediment. Solid, clastic material, both mineral and organic, that is in suspension, is

being transported or has been moved from its site of origin by water, wind, ice, or

mass wasting, and has come to rest on the earth’s surface either above or below

sea level.

Sedimentary plain. An extensive nearly level to gently rolling or moderately sloping

area that is underlain by sedimentary bedrock and that has a slope of 0 to 8

percent.

Sedimentary rock. Rock made up of particles deposited from suspension in water.

The chief kinds of sedimentary rock are conglomerate, formed from gravel;

sandstone, formed from sand; shale, formed from clay; and limestone, formed

from soft masses of calcium carbonate. There are many intermediate types. Some

wind-deposited sand is consolidated into sandstone.

Sedimentary uplands. Land areas of bedrock formed from water- or wind-deposited

sediments. They are higher on the landscape than the flood plain.

Seepage (in tables). The movement of water through the soil. Seepage adversely

affects the specified use.

Semiconsolidated sedimentary beds. Soft geologic sediments that disperse when

fragments are placed in water. The fragments are hard or very hard when dry.

Determining the texture by the usual field method is difficult.

Sequum. A sequence consisting of an illuvial horizon and the overlying eluvial horizon.

(See Eluviation.)

Series, soil. A group of soils that have profiles that are almost alike, except for

differences in texture of the surface layer. All the soils of a series have horizons

that are similar in composition, thickness, and arrangement.

Shale. Sedimentary rock formed by the hardening of a clay deposit.

Shallow soil. A soil that is 10 to 20 inches deep over bedrock or to other material that

restricts the penetration of plant roots.

Sheet erosion. The removal of a fairly uniform layer of soil material from the land

surface by the action of rainfall and surface runoff.

Shoulder slope. The uppermost inclined surface at the top of a hillside. It is the

transition zone from the backslope to the summit of a hill or mountain. The surface

is dominantly convex in profile and erosional in origin.

Silica. A combination of silicon and oxygen. The mineral form is called quartz.

Silt. As a soil separate, individual mineral particles that range in diameter from the

upper limit of clay (0.002 millimeter) to the lower limit of very fine sand (0.05

millimeter). As a soil textural class, soil that is 80 percent or more silt and less than

12 percent clay.

Siltstone. Sedimentary rock made up of dominantly silt-sized particles.

Similar soils. Soils that share limits of diagnostic criteria, behave and perform in a

similar manner, and have similar conservation needs or management

requirements for the major land uses in the survey area.

Similarity index. The present composition of the plant community on an ecological

site in relation to the potential natural plant community for that site. Similarity index

is expressed as excellent, good, fair, or poor on the basis of how much the present

plant community has departed from the potential.
Logan County, Oklahoma 601

Sinkhole. A depression in the landscape where limestone has been dissolved.

Slickensides. Polished and grooved surfaces produced by one mass sliding past

another. In soils, slickensides may occur at the bases of slip surfaces on the

steeper slopes; on faces of blocks, prisms, and columns; and in swelling clayey

soils, where there is marked change in moisture content.

Slick spot. A small area of soil having a puddled, crusted, or smooth surface and an

excess of exchangeable sodium. The soil generally is silty or clayey, is slippery

when wet, and is low in productivity.

Slippage (in tables). Soil mass susceptible to movement downslope when loaded,

excavated, or wet.

Slope. The inclination of the land surface from the horizontal. Percentage of slope is

the vertical distance divided by horizontal distance, then multiplied by 100. Thus, a

slope of 20 percent is a drop of 20 feet in 100 feet of horizontal distance. In this

survey the following slope classes are recognized:

Nearly level ........................................... 0 to 1 percent

Very gently sloping ............................... 1 to 3 percent

Gently sloping ....................................... 3 to 5 percent

Moderately sloping ............................... 5 to 8 percent

Strongly sloping .................................. 8 to 12 percent

Moderately steep .............................. 12 to 20 percent

Steep ................................................. 20 to 45 percent

Very steep ................................ 45 percent and higher

Classes for complex slopes are as follows:

Nearly level ........................................... 0 to 3 percent

Gently undulating ................................. 1 to 5 percent

Undulating ............................................. 1 to 8 percent

Gently rolling....................................... 5 to 12 percent

Rolling ................................................. 5 to 15 percent

Hilly ..................................................... 8 to 30 percent

Steep ................................................. 20 to 45 percent

Very steep ................................ 45 percent and higher

Slope (in tables). Slope is great enough that special practices are required to ensure

satisfactory performance of the soil for a specific use.

Slow intake (in tables). The slow movement of water into the soil.

Slow refill (in tables). The slow filling of ponds, resulting from restricted permeability in

the soil.

Small stones (in tables). Rock fragments less than 3 inches (7.6 centimeters) in

diameter. Small stones adversely affect the specified use of the soil.

Sodic (alkali) soil. A soil having so high a degree of alkalinity (pH 8.5 or higher) or so

high a percentage of exchangeable sodium (15 percent or more of the total

exchangeable bases), or both, that plant growth is restricted.

Sodicity. The degree to which a soil is affected by exchangeable sodium. Sodicity is

expressed as a sodium adsorption ratio (SAR) of a saturation extract, or the ratio

of Na+

 to Ca++ + Mg++. The degrees of sodicity and their respective ratios are:

Slight ..................................................... less than 13:1

Moderate ..................................................... 13 to 30:1

Strong ................................................. more than 30:1

Soft bedrock. Bedrock that can be excavated with trenching machines, backhoes,

small rippers, and other equipment commonly used in construction.

Soil. A natural, three-dimensional body at the earth’s surface. It is capable of

supporting plants and has properties resulting from the integrated effect of climate
602 Soil Survey

and living matter acting on earthy parent material, as conditioned by relief over

periods of time.

Soil separates. Mineral particles less than 2 millimeters in equivalent diameter and

ranging between specified size limits. The names and sizes, in millimeters, of

separates recognized in the United States are as follows:

Very coarse sand ........................................ 2.0 to 1.0

Coarse sand ................................................ 1.0 to 0.5

Medium sand ............................................. 0.5 to 0.25

Fine sand ................................................. 0.25 to 0.10

Very fine sand .......................................... 0.10 to 0.05

Silt .......................................................... 0.05 to 0.002

Clay .....................................................less than 0.002

Solum. The upper part of a soil profile, above the C horizon, in which the processes of

soil formation are active. The solum in soil consists of the A, E, and B horizons.

Generally, the characteristics of the material in these horizons are unlike those of

the material below the solum. The living roots and plant and animal activities are

largely confined to the solum.

Species. A single, distinct kind of plant or animal having certain distinguishing

characteristics.

Stone line. A concentration of coarse fragments in a soil. Generally, it is indicative of

an old weathered surface. In a cross section, the line may be one fragment or

more thick. It generally overlies material that weathered in place and is overlain by

recent sediment of variable thickness.

Stones. Rock fragments 10 to 24 inches (25 to 60 centimeters) in diameter if rounded

or 15 to 24 inches (38 to 60 centimeters) in length if flat.

Stony. Refers to a soil containing stones in numbers that interfere with or prevent

tillage.

Stratified. Arranged in strata, or layers. The term refers to geologic material. Layers in

soils that result from the processes of soil formation are called horizons; those

inherited from the parent material are called strata.

Strath terrace. A surface cut formed by the erosion of hard or semiconsolidated

bedrock and thinly mantled with stream deposits.

Stream channel. The hollow bed where a natural stream of surface water flows or

may flow; the deepest or central part of the bed, formed by the main current and

covered more or less continuously by water.

Stream terrace. One of a series of platforms in a stream valley, flanking and more or

less parallel to the stream channel. It originally formed near the level of the stream

and is the dissected remnants of an abandoned flood plain, streambed, or valley

floor that were produced during a former stage of erosion or deposition.

Stripcropping. Growing crops in a systematic arrangement of strips or bands that

provide vegetative barriers to soil blowing and water erosion.

Structure, soil. The arrangement of primary soil particles into compound particles or

aggregates. The principal forms of soil structure are—platy (laminated), prismatic

(vertical axis of aggregates longer than horizontal), columnar (prisms with rounded

tops), blocky (angular or subangular), and granular. Structureless soils are either

single grained (each grain by itself, as in dune sand) or massive (the particles

adhering without any regular cleavage, as in many hardpans).

Stubble mulch. Stubble or other crop residue left on the soil or partly worked into the

soil. It protects the soil from wind erosion and water erosion after harvest, during

preparation of a seedbed for the next crop, and during the early growing period of

the new crop.

Subsoil. Technically, the B horizon; roughly, the part of the solum below plow depth.
Logan County, Oklahoma 603

Subsoiling. Tilling a soil below normal plow depth, ordinarily to shatter a hardpan or

claypan.

Substratum. The part of the soil below the solum.

Subsurface layer. Technically, the E horizon. Generally refers to a leached horizon

lighter in color and lower in content of organic matter than the overlying surface

layer. Any surface soil horizon (A, E, AB, or EB) below the surface layer.

Summer fallow. The tillage of uncropped land during the summer to control weeds

and allow storage of moisture in the soil for the growth of a later crop. A practice

common in semiarid regions, where annual precipitation is not enough to produce

a crop every year. Summer fallow is frequently practiced before planting winter

grain.

Summit. A general term for the top, or highest level, of an upland feature, such as a

hill or mountain. It commonly refers to a higher area that has a gentle slope and is

flanked by steeper slopes.

Surface layer. The soil ordinarily moved in tillage, or its equivalent in uncultivated soil,

ranging in depth from 4 to 10 inches (10 to 25 centimeters). Frequently designated

as the “plow layer,” or the “Ap horizon.”

Surface soil. The A, E, AB, and EB horizons, considered collectively. It includes all

subdivisions of these horizons.

Tailwater. The water directly downstream of a structure.

Terrace. An embankment, or ridge, constructed across sloping soils on the contour or

at a slight angle to the contour. The terrace intercepts surface runoff so that water

soaks into the soil or flows slowly to a prepared outlet. A terrace in a field is

generally built so that the field can be farmed. A terrace intended mainly for

drainage has a deep channel that is maintained in permanent sod.

Terrace (geologic). An old alluvial plain, ordinarily flat or undulating, bordering a river,

a lake, or the sea.

Texture, soil. The relative proportions of sand, silt, and clay particles in a mass of soil.

The basic textural classes, in order of increasing proportion of fine particles, are

sand, loamy sand, sandy loam, loam, silt loam, silt, sandy clay loam, clay loam,

silty clay loam, sandy clay, silty clay, and clay. The sand, loamy sand, and sandy

loam classes may be further divided by specifying “coarse,” “fine,” or “very fine.”

Thin layer (in tables). Otherwise suitable soil material too thin for the specified use.

Thornthwaite PE index. The annual PE index is the sum of the 12 monthly

precipitation effectiveness indices.

Tilth, soil. The physical condition of the soil as related to tillage, seedbed preparation,

seedling emergence, and root penetration.

Toeslope. The outermost inclined surface at the base of a hill; part of a footslope.

Topsoil. The upper part of the soil, which is the most favorable material for plant

growth. It is ordinarily rich in organic matter and is used to topdress roadbanks,

lawns, and land affected by mining.

Toxicity (in tables). Excessive amount of toxic substances, such as sodium or sulfur,

that severely hinder establishment of vegetation or severely restrict plant growth.

Trace elements. Chemical elements, for example, zinc, cobalt, manganese, copper,

and iron, in soils in extremely small amounts. They are essential to plant growth.

Trafficability. The degree to which a soil is capable of supporting vehicular traffic

across a wide range in soil moisture conditions.

Tread. The relatively flat terrace surface that was cut or built by stream or wave action.

Unstable fill (in tables). Risk of caving or sloughing on banks of fill material.

Upland (geology). Land at a higher elevation, in general, than the alluvial plain or

stream terrace; land above the lowlands along streams.

Valley. An elongated depressional area primarily developed by stream action.

Valley fill. Alluvium deposited by heavily loaded streams.
604

Variegation. Refers to patterns of contrasting colors assumed to be inherited from the

parent material rather than to be the result of poor drainage.

Very deep soil. A soil that is more than 60 inches deep over bedrock or to other

material that restricts the penetration of plant roots.

Very shallow soil. A soil that is less than 10 inches deep over bedrock or to other

material that restricts the penetration of plant roots.

Well graded. Refers to soil material consisting of coarse-grained particles that are well

distributed over a wide range in size or diameter. Such soil normally can be easily

increased in density and bearing properties by compaction. Contrasts with poorly

graded soil.

Wilting point (or permanent wilting point). The moisture content of soil, on an

ovendry basis, at which a plant (specifically a sunflower) wilts so much that it does

not recover when placed in a humid, dark chamber.
The Natural Resources Conservation Service (NRCS) is committed to making its

information accessible to all of its customers and employees. If you are experiencing

accessibility issues and need assistance, please contact our Helpdesk by phone at

1-800-457-3642 or by e-mail at ServiceDesk-FTC@ftc.usda.gov. For assistance

with publications that include maps, graphs, or similar forms of information, you may

also wish to contact our State or local office. You can locate the correct office and

phone number at http://offices.sc.egov.usda.gov/locator/app.

NRCS Accessibility Statement