United States

Department of

Agriculture Soil Survey of

Black Hawk

County, Iowa

In cooperation with Iowa

Agriculture and Home

Economics Experiment

Station and Cooperative

Extension Service, Iowa

State University; and

Division of Soil

Conservation, Iowa

Department of Agriculture

and Land Stewardship

Iowa Department of

Agriculture and

Land Stewardship

Natural

Resources

Conservation

Service
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
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 turn

to that sheet.

Locate your area of interest on

the map sheet. Note the map unit

symbols that are in that area. Turn

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.

i

How To Use This Soil Survey
ii

Additional information about the Nation’s natural resources is available on the

Natural Resources Conservation Service homepage on the World Wide Web. The

address is http://www.nrcs.usda.gov.

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 2001. Soil names and

descriptions were approved in 2001. Unless otherwise indicated, statements in this

publication refer to conditions in the survey area in 2001. This survey was made

cooperatively by the Natural Resources Conservation Service and the Iowa Agriculture

and Home Economics Experiment Station. It is part of the technical assistance

furnished to the Black Hawk County Soil and Water Conservation District. Assistance

with the survey was provided by the Cooperative Extension Service, Iowa State

University; the Division of Soil Conservation, Iowa Department of Agriculture and Land

Stewardship; and the Black Hawk County Board of Supervisors. Funds appropriated by

Black Hawk County were used to defray part of the cost of the survey.

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 U.S. Department of Agriculture (USDA) prohibits discrimination in all its

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

where applicable, sex, marital status, familial status, parental status, religion, sexual

orientation, genetic information, political beliefs, reprisal, or because all or a part of an

individual’s income is derived from any public assistance program. (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 to USDA, Director, Office of Civil Rights, 1400 Independence

Avenue, S.W., Washington, D.C. 20250-9410, or call (800) 795-3272 (voice) or (202)

720-6382 (TDD). USDA is an equal opportunity provider and employer.

Cover: An aerial view of the Sparta-Finchford-Saude association in the Cedar River valley.
iii

Contents

How To Use This Soil Survey .................................. i

Foreword ................................................................ ix

General Nature of the County ................................... 1

History.................................................................. 1

Industry ................................................................ 2

Farming ................................................................ 2

Transportation Facilities ........................................ 2

Recreation ............................................................ 2

Physiography, Drainage, and Geology .................. 2

Climate ................................................................. 2

How This Survey Was Made ..................................... 3

General Soil Map Units .......................................... 5

1. Dinsmore-Klingmore-Maxmore Association ... 5

2. Dinsdale-Klinger-Maxfield Association ........... 6

3. Kenyon-Clyde-Floyd Association ................... 7

4. Readlyn-Tripoli Association ............................ 8

5. Sparta-Finchford-Saude Association ............. 8

6. Coland-Spillville Association .......................... 9

7. Marquis-Clyde-Floyd Association................. 10

Detailed Soil Map Units ........................................ 13

7—Wiota silty clay loam, 0 to 2 percent

slopes .......................................................... 14

41—Sparta loamy fine sand, 0 to 2 percent

slopes .......................................................... 14

41B—Sparta loamy fine sand, 2 to 5 percent

slopes .......................................................... 14

41C—Sparta loamy fine sand, 5 to 9 percent

slopes .......................................................... 14

41D—Sparta loamy fine sand, 9 to 14 percent

slopes .......................................................... 15

63B—Chelsea loamy fine sand, 2 to 5 percent

slopes .......................................................... 15

63C—Chelsea loamy fine sand, 5 to 9 percent

slopes .......................................................... 15

63D—Chelsea loamy fine sand, 9 to 14

percent slopes ............................................. 15

83B—Kenyon loam, 2 to 5 percent slopes .......... 16

83C—Kenyon loam, 5 to 9 percent slopes.......... 16

83C2—Kenyon loam, 5 to 9 percent slopes,

moderately eroded ....................................... 16

83D2—Kenyon loam, 9 to 14 percent slopes,

moderately eroded ....................................... 16

84—Clyde silty clay loam, 0 to 3 percent

slopes .......................................................... 17

88—Nevin silty clay loam, 0 to 2 percent

slopes .......................................................... 17

133—Colo silty clay loam, 0 to 2 percent

slopes, occasionally flooded ........................ 17

135—Coland clay loam, 0 to 2 percent

slopes, occasionally flooded ........................ 18

159—Finchford loamy sand, 0 to 2 percent

slopes .......................................................... 18

159C—Finchford loamy sand, 2 to 9 percent

slopes .......................................................... 18

171B—Bassett loam, 2 to 5 percent slopes ........ 18

175—Dickinson fine sandy loam, 0 to 2

percent slopes ............................................. 19

175B—Dickinson fine sandy loam, 2 to 5

percent slopes ............................................. 19

177—Saude loam, 0 to 2 percent slopes ............ 19

177B—Saude loam, 2 to 5 percent slopes ......... 19

178—Waukee loam, 0 to 2 percent slopes ......... 20

178B—Waukee loam, 2 to 5 percent slopes ....... 20

184—Klinger silty clay loam, 1 to 3 percent

slopes .......................................................... 20

198B—Floyd loam, 1 to 4 percent slopes ........... 20

213B—Rockton loam, 30 to 40 inches to

limestone, 2 to 5 percent slopes .................. 21

221—Klossner muck, 1 to 3 percent slopes ....... 22

284—Flagler sandy loam, 0 to 2 percent

slopes .......................................................... 22

284B—Flagler sandy loam, 2 to 5 percent

slopes .......................................................... 22

290—Dells silt loam, 0 to 2 percent slopes ......... 22

354—Aquolls, ponded, 0 to 1 percent slopes ..... 23

377B—Dinsdale silty clay loam, 2 to 5

percent slopes ............................................. 23

377C—Dinsdale silty clay loam, 5 to 9

percent slopes ............................................. 23

377C2—Dinsdale silty clay loam, 5 to 9

percent slopes, moderately eroded .............. 23

382—Maxfield silty clay loam, 0 to 2 percent

slopes .......................................................... 24

391B—Clyde-Floyd complex, 1 to 4 percent

slopes .......................................................... 24

395B—Marquis loam, 2 to 5 percent slopes ....... 24

398—Tripoli clay loam, 0 to 2 percent slopes ..... 25

399—Readlyn loam, 1 to 3 percent slopes ......... 25
iv

408B—Olin fine sandy loam, 2 to 5 percent

slopes .......................................................... 25

408C—Olin fine sandy loam, 5 to 9 percent

slopes .......................................................... 25

412C—Emeline loam, 2 to 9 percent slopes....... 26

426B—Aredale loam, 2 to 5 percent slopes ....... 26

426C—Aredale loam, 5 to 9 percent slopes ....... 26

426C2—Aredale loam, 5 to 9 percent slopes,

moderately eroded ....................................... 27

468B—Dunkerton sandy loam, 2 to 5 percent

slopes .......................................................... 27

468C—Dunkerton sandy loam, 5 to 9 percent

slopes .......................................................... 27

471—Oran loam, 1 to 3 percent slopes .............. 28

485—Spillville loam, 0 to 2 percent slopes,

occasionally flooded..................................... 28

585—Spillville-Coland complex, 0 to 2 percent

slopes, occasionally flooded ........................ 28

626—Hayfield loam, 24 to 40 inches to sand

and gravel, 0 to 2 percent slopes ................. 29

761—Franklin silt loam, 1 to 3 percent slopes .... 29

771B—Waubeek silt loam, 2 to 5 percent

slopes .......................................................... 29

775B—Billett sandy loam, 2 to 5 percent

slopes .......................................................... 29

776C—Lilah sandy loam, 2 to 9 percent

slopes .......................................................... 30

777—Wapsie loam, 1 to 3 percent slopes .......... 30

781B—Lourdes loam, 2 to 5 percent slopes ....... 30

781C2—Lourdes loam, 5 to 9 percent slopes,

moderately eroded ....................................... 31

782B—Donnan loam, 2 to 5 percent slopes ....... 31

798—Protivin loam, 1 to 3 percent slopes .......... 31

809B—Bertram fine sandy loam, 2 to 5

percent slopes ............................................. 31

877B—Dinsmore silty clay loam, 2 to 5

percent slopes ............................................. 32

884—Klingmore silty clay loam, 1 to 3 percent

slopes .......................................................... 32

911B—Colo-Ely complex, 2 to 5 percent

slopes .......................................................... 32

933—Sawmill silty clay loam, 0 to 2 percent

slopes, occasionally flooded ........................ 33

982—Maxmore silty clay loam, 0 to 2 percent

slopes .......................................................... 33

1152—Marshan clay loam, 24 to 40 inches to

sand and gravel, 0 to 2 percent slopes......... 33

1226—Lawler loam, 24 to 40 inches to sand

and gravel, 0 to 2 percent slopes ................. 33

1285G—Burkhardt-Bassett-Chelsea complex,

18 to 60 percent slopes................................ 34

1585—Spillville-Coland, channeled-Aquolls,

ponded, complex, 0 to 2 percent slopes,

frequently flooded ........................................ 34

1586—Sigglekov-Fluvaquents, channeledAquents, ponded, complex, 0 to 2

percent slopes, frequently flooded ............... 36

4000—Urban land .............................................. 36

4007—Wiota-Urban land complex, 0 to 2

percent slopes ............................................. 36

4041—Sparta-Urban land complex, 0 to 2

percent slopes ............................................. 37

4041B—Sparta-Urban land complex, 2 to 5

percent slopes ............................................. 37

4041C—Sparta-Urban land complex, 5 to 9

percent slopes ............................................. 37

4041D—Sparta-Urban land complex, 9 to 14

percent slopes ............................................. 37

4063B—Chelsea-Urban land complex, 2 to 5

percent slopes ............................................. 38

4063C—Chelsea-Urban land complex, 5 to 9

percent slopes ............................................. 38

4063D—Chelsea-Urban land complex, 9 to

14 percent slopes ........................................ 38

4083B—Kenyon-Urban land complex, 2 to 5

percent slopes ............................................. 39

4083C—Kenyon-Urban land complex, 5 to 9

percent slopes ............................................. 39

4083D—Kenyon-Urban land complex, 9 to 14

percent slopes ............................................. 39

4084—Clyde-Urban land complex, 0 to 3

percent slopes ............................................. 40

4088—Nevin-Urban land complex, 0 to 2

percent slopes ............................................. 40

4133—Colo, occasionally flooded-Urban land

complex, 0 to 2 percent slopes .................... 41

4135—Coland, occasionally flooded-Urban

land complex, 0 to 2 percent slopes ............. 41

4152—Marshan-Urban land complex, 0 to 2

percent slopes ............................................. 41
v

4159—Finchford-Urban land complex, 0 to 2

percent slopes ............................................. 42

4159C—Finchford-Urban land complex, 2 to 9

percent slopes ............................................. 42

4171B—Bassett-Urban land complex, 2 to 5

percent slopes ............................................. 42

4171D—Bassett-Urban land complex, 5 to 14

percent slopes ............................................. 43

4175—Dickinson-Urban land complex, 0 to 2

percent slopes ............................................. 43

4175B—Dickinson-Urban land complex, 2 to 5

percent slopes ............................................. 43

4177—Saude-Urban land complex, 0 to 2

percent slopes ............................................. 44

4177B—Saude-Urban land complex, 2 to 5

percent slopes ............................................. 44

4178—Waukee-Urban land complex, 0 to 2

percent slopes ............................................. 44

4184—Klinger-Urban land complex, 1 to 3

percent slopes ............................................. 45

4198B—Floyd-Urban land complex, 1 to 4

percent slopes ............................................. 45

4226—Lawler-Urban land complex, 0 to 2

percent slopes ............................................. 45

4284—Flagler-Urban land complex, 0 to 2

percent slopes ............................................. 46

4284B—Flagler-Urban land complex, 2 to 5

percent slopes ............................................. 46

4377B—Dinsdale-Urban land complex, 2 to 5

percent slopes ............................................. 46

4377C—Dinsdale-Urban land complex, 5 to 9

percent slopes ............................................. 47

4382—Maxfield-Urban land complex, 0 to 2

percent slopes ............................................. 47

4391B—Clyde-Floyd-Urban land complex,

1 to 4 percent slopes.................................... 47

4398—Tripoli-Urban land complex, 0 to 2

percent slopes ............................................. 48

4399—Readlyn-Urban land complex, 1 to 3

percent slopes ............................................. 48

4408B—Olin-Urban land complex, 2 to 5

percent slopes ............................................. 48

4408C—Olin-Urban land complex, 5 to 9

percent slopes ............................................. 49

4426B—Aredale-Urban land complex, 2 to 5

percent slopes ............................................. 49

4426C—Aredale-Urban land complex, 5 to 9

percent slopes ............................................. 50

4585—Spillville, occasionally flooded-Coland,

occasionally flooded-Urban land complex,

0 to 2 percent slopes.................................... 50

4761—Franklin-Urban land complex, 1 to 3

percent slopes ............................................. 51

4771B—Waubeek-Urban land complex, 2 to

5 percent slopes .......................................... 51

4771D—Waubeek-Urban land complex, 5 to

14 percent slopes ........................................ 51

4798—Protivin-Urban land complex, 1 to 3

percent slopes ............................................. 52

4911B—Colo-Ely-Urban land complex, 2 to 5

percent slopes ............................................. 52

4933—Sawmill, occasionally flooded-Urban

land complex, 0 to 2 percent slopes ............. 53

4946—Orthents-Urban land complex ................. 53

5010—Pits, sand and gravel............................... 53

5030—Pits, limestone quarries ........................... 53

5040—Orthents, loamy ...................................... 53

5053—Psammaquents, frequently flooded ......... 53

5080—Orthents, sanitary landfill ........................ 54

AW—Animal waste ............................................. 54

SL—Sewage lagoon ........................................... 54

W—Water........................................................... 54

Use and Management of the Soils ...................... 55

Interpretive Ratings ............................................ 55

Rating Class Terms ........................................ 55

Numerical Ratings.......................................... 55

Crops and Pasture ............................................. 55

Cropland Management Considerations .......... 56

Crop Yield Estimates ...................................... 57

Pasture and Hayland Interpretations .............. 58

Land Capability Classification ........................ 58

Prime Farmland ............................................. 59

Windbreaks and Environmental Plantings .......... 59

Woodland Management and Productivity ........... 60

Recreation .......................................................... 60

Wildlife Habitat ................................................... 61

Engineering ........................................................ 62

Building Site Development ............................. 63
vi

Sanitary Facilities ........................................... 64

Construction Materials ................................... 66

Water Management........................................ 67

Agricultural Waste Management ......................... 67

Soil Properties ...................................................... 71

Engineering Index Properties ............................. 71

Physical Properties ............................................ 72

Chemical Properties ........................................... 73

Water Features ................................................... 74

Soil Features ...................................................... 75

Classification of the Soils .................................... 77

Soil Series and Their Morphology....................... 77

Aredale Series ............................................... 77

Atkinson Series .............................................. 78

Bassett Series ................................................ 79

Bertram Series ............................................... 80

Billett Series ................................................... 81

Burkhardt Series ............................................ 82

Chelsea Series .............................................. 82

Clyde Series .................................................. 83

Coland Series ................................................ 83

Colo Series .................................................... 84

Dells Series.................................................... 84

Dickinson Series ............................................ 85

Dinsdale Series .............................................. 86

Dinsmore Series ............................................ 87

Donnan Series ............................................... 88

Dunkerton Series ........................................... 88

Ely Series....................................................... 89

Emeline Series ............................................... 90

Finchford Series ............................................. 90

Flagler Series ................................................. 91

Floyd Series ................................................... 91

Franklin Series ............................................... 92

Hayfield Series ............................................... 93

Kenyon Series ................................................ 94

Klinger Series ................................................ 95

Klingmore Series............................................ 95

Klossner Series .............................................. 96

Lawler Series ................................................. 97

Lilah Series .................................................... 97

Lourdes Series ............................................... 98

Marquis Series ............................................... 99

Marshan Series ............................................ 100

Maxfield Series ............................................ 100

Maxmore Series ........................................... 101

Nevin Series................................................. 102

Olin Series ................................................... 103

Oran Series.................................................. 103

Protivin Series .............................................. 104

Readlyn Series ............................................ 105

Riceville Series ............................................ 106

Rockton Series ............................................ 107

Sattre Series ................................................ 107

Saude Series ............................................... 108

Sawmill Series ............................................. 109

Sigglekov Series .......................................... 109

Sparta Series ............................................... 110

Spillville Series ............................................. 110

Tripoli Series ................................................ 111

Wapsie Series .............................................. 111

Watseka Series ............................................ 112

Waubeek Series ........................................... 113

Waukee Series ............................................. 114

Wiota Series ................................................ 114

Formation of the Soils........................................ 117

Climate ............................................................. 117

Living Organisms ............................................. 117

Topography....................................................... 117

Parent Material ................................................. 118

Time ................................................................. 119

References .......................................................... 121

Glossary .............................................................. 123

Tables .................................................................. 139

Table 1.—Temperature and Precipitation .......... 140

Table 2.—Freeze Dates in Spring and Fall........ 141

Table 3.—Growing Season ............................... 141

Table 4.—Acreage and Proportionate Extent

of the Soils ................................................. 142

Table 5.—Cropland Management

Considerations ........................................... 145

Table 6.—Land Capability, Corn Suitability

Rating, Subsoil Phosphorus and

Potassium, and Yields per Acre of

Crops ......................................................... 161

Table 7.—Land Capability and Yields per

Acre of Pasture .......................................... 172

Table 8.—Prime Farmland ................................ 181

Table 9.—Windbreaks and Environmental

Plantings .................................................... 182
vii

Table 10.—Forestland Productivity ................... 202

Table 11a.—Recreational Development............ 206

Table 11b.—Recreational Development ............ 220

Table 12.—Wildlife Habitat ................................ 233

Table 13a.—Building Site Development ............ 243

Table 13b.—Building Site Development ............ 257

Table 14a.—Sanitary Facilities ......................... 274

Table 14b.—Sanitary Facilities.......................... 292

Table 15a.—Construction Materials .................. 308

Table 15b.—Construction Materials .................. 322

Table 16.—Water Management ........................ 341

Table 17a.—Agricultural Waste

Management .............................................. 356

Table 17b.—Agricultural Waste

Management .............................................. 378

Table 18.—Engineering Index Properties ......... 400

Table 19.—Physical Properties of the Soils ...... 448

Table 20.—Chemical Properties of the

Soils ........................................................... 466

Table 21.—Water Features ............................... 485

Table 22.—Soil Features .................................. 513

Table 23.—Classification of the Soils ................ 526

Issued 2006

ix

This soil survey contains information that affects land use planning in this survey

area. It contains predictions of soil behavior for selected land uses. The survey also

highlights soil limitations, 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, 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.

Various land use regulations of Federal, State, and local governments may impose

special restrictions on land use or land treatment. The information in this report is

intended to identify soil properties that are used in making various land use or land

treatment decisions. Statements made in this report are intended to help the land users

identify and reduce the effects of soil limitations on various land uses. The landowner or

user is responsible for identifying and complying with existing laws and regulations.

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, and

information on specific uses is given. Help in using this publication and additional

information are available at the local office of the Natural Resources Conservation

Service or the Cooperative Extension Service.

Richard Van Klaveren

State Conservationist

Natural Resources Conservation Service

Foreword

1

BLACK HAWK COUNTY is in east-central Iowa (fig. 1). It

is bordered on the north by Bremer County, on the

south by Tama and Benton Counties, on the east by

Buchanan County, and on the west by Butler and

Grundy Counties. The county has an area of about

366,600 acres, or approximately 573 square miles. In

2000, the population of the county was 128,012 (U.S.

Department of Commerce, 2000). Waterloo, the

county seat, had a population of 68,747.

About 72 percent of the county is cropland; 20

percent is urban land; 5 percent is used for

recreational activities; 2 percent is woodland; and 1

percent is permanent pasture.

This soil survey updates the survey of Black Hawk

County published in 1978 (Fouts and Highland, 1978).

It provides additional information and has larger maps,

which show the soils in greater detail.

General Nature of the County

This section provides some general information

about the survey area. It describes history; industry;

farming; transportation facilities; recreation;

physiography, drainage, and geology; and climate.

History

Black Hawk County was established in 1843. The

Sauk and Fox (Meskwaki) tribes had lived here for

many years, owning the area until 1837. The county

was named after the renowned Sauk Chief Black

Hawk.

In 1845, the county was attached to Benton County

for judicial, election, and revenue purposes, and in

1851 it was attached to Buchanan County. Black Hawk

County did not have its own government until 1853.

One of the earliest Europeans to visit the survey

area is believed to have been a Frenchman named

Gervais Paul Somaneaux. He arrived during the spring

of 1837, left during the winter, and returned about 10

years later to settle in Cedar Falls, where he lived until

his death in 1850 (Cedar Falls Historical Society).

The first permanent white settlement in Black Hawk

County was started in March 1845 by William Sturgis

and his brother-in-law, Erasmus D. Adams. They

named their settlement Sturgis Falls. Sturgis built a

Soil Survey of

Black Hawk County, Iowa

By Sam R. Steckly, Natural Resources Conservation Service

Fieldwork by Leland D. Camp, Robert O. Didericksen, Joseph A. Falkenberg, and

Sam R. Steckly, Natural Resources Conservation Service

United States Department of Agriculture, Natural Resources Conservation Service,

in cooperation with

the Iowa Agriculture and Home Economics Experiment Station; the Cooperative

Extension Service, Iowa State University; and the Division of Soil Conservation, Iowa

Department of Agriculture and Land Stewardship

Figure 1.—Location of Black Hawk County in Iowa.
2 Soil Survey of

double log cabin on the banks of the Red Cedar River

and broke 5 acres of prairie. This was considered to

be the first breaking of prairie land in the county. The

name of Sturgis Falls was changed to Cedar Falls in

1851.

Black Hawk County has undergone a fundamental

change from a strictly rural county to a predominantly

urban county. By 1895, more than 50 percent of the

population of the county lived in the Waterloo-Cedar

Falls urban areas. In 2000, nearly 90 percent of the

county’s population lived in urban areas that made up

22 percent of the county’s land area (fig. 2).

Industry

Manufacturing is of major economic importance in

Black Hawk County. In 1994, manufacturing made up

33.4 percent of the earnings of employed persons, and

farming accounted for only 1.5 percent.

Farming

In 2000, Black Hawk County had 264,700 acres of

farmland, according to the USDA National Agricultural

Statistics Service. Corn and soybeans were grown on

254,300 acres. The remaining agricultural acreage

was used for hay, corn silage, or oats or was idle land.

In recent years, the number of farms in the county

has been decreasing and the average size of farms

has been increasing. In 1999, the number of farms

was 1,060 and the average size of farms was 285

acres. The figures reported in 1993 were 1,160 farms

with an average size of 262 acres.

Transportation Facilities

The major highways in Black Hawk County are U.S.

Highway 218 and Interstate 380, which cross the

county from northwest to southeast; U.S. Highway 20,

which crosses from east to west; and U.S. Highway

63, which crosses from north to south. All of these

highways intersect in Waterloo. Hard surface state or

county roads connect these highways to all of the

other communities in the county. All farms are along

hard surface highways and roads or gravel roads. The

major hard surface county roads are well distributed

throughout the county.

One rail line provides railroad service to the

communities of Waterloo, Cedar Falls, Dunkerton,

LaPorte City, Hudson, and Raymond. The county has

one municipal airport on the north end of Waterloo.

Motor freight lines serve every trading center in the

county.

Recreation

Many parks have been established throughout the

county. These include Black Hawk Park, 1.5 miles

north and 1 mile west of Cedar Falls; McFarlane Park,

2.5 miles east of LaPorte City; Sigglekov Park, 4 miles

north and 1 mile east of Dunkerton; Thunder Woman

Park, 4 miles west and 1 mile south of Janesville;

Washington Union Access, 4 miles north and 2 miles

west of Cedar Falls; and Byron Sergeant Memorial

Park, 1 mile northeast of Hudson. The small lakes and

reservoirs, rivers, creeks, and wetlands in the county

provide excellent potential for recreational activities,

such as hunting, fishing, and canoeing.

Physiography, Drainage, and Geology

The topography in most of the county is

characterized by long, gentle slopes with open views;

slightly rounded ridges; and broad, nearly level valleys

with unclear valley edges and well established low

gradient drainageways. The Cedar River, the

Wapsipinicon River, and Black Hawk Creek are the

major drainage systems in the county.

Black Hawk County is in Major Land Resource Area

104, the Iowan Erosional Surface. Erosion on a large

scale is the key to the geological origins of the Iowan

Erosional Surface. The landscape was last glaciated in

Pre-Illinoisian time (more than 150,000 years ago) and

since has lain exposed to various episodes of

weathering and erosion. Extensive freeze-thaw action,

massive dislodgement of loosened material,

sheetwash of slopes, and violent winds were forms of

erosional scouring that took place throughout the cold

but ice-free tundra-covered areas some 15,000 to

20,000 years ago. The climatic conditions during this

time wore down the landscape. The Pre-Illinoisian

upland summits and divides were lowered, and only a

small portion of the former landscapes remain in the

form of a paleosol (Prior, 1991).

Climate

Table 1 gives data on temperature and precipitation

for the survey area as recorded at Waterloo in the period

1961 to 1990. Table 2 shows probable dates of the first

freeze in fall and the last freeze in spring. Table 3

provides data on the length of the growing season.
Black Hawk County, Iowa 3

In winter, the average temperature is 18 degrees F

and the average daily minimum temperature is 9

degrees F. In summer, the average temperature is 71

degrees F and the average daily maximum

temperature is 82 degrees F.

Growing degrees days are shown in table 1. 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.

The total annual precipitation is about 34 inches. Of

this total, 24 inches, or more than 70 percent, usually

falls in April through September. The growing season

for most crops falls within this period. In 2 years out of

10, the rainfall in April through September is less than

13 inches.

The average seasonal snowfall is about 32 inches.

On the average, 69 days of the year have at least 1

inch of snow on the ground. The number of such days

varies greatly from year to year.

How This Survey Was Made

This survey was made to provide updated

information about the soils and miscellaneous areas in

the survey area, which is a subset of Major Land

Resource Area 104. Major land resource areas

(MLRAs) are geographically associated land resource

units that share a common land use, elevation and

topography, climate, water, soils, and vegetation

(USDA, 1981). Map unit design and the detailed soil

descriptions are based on the occurrence of each soil

throughout the MLRA. In some cases a soil may be

referred to that does not occur in the Black Hawk

County survey area but that is representative of the

MLRA.

The information in this survey includes a description

Figure 2.—An aerial view of Waterloo along the Cedar River showing some of the urban development that has taken place in the last

150 years.
4

of the soils and miscellaneous areas and their location

and a discussion of their properties and the

subsequent effects on suitability, limitations, and

management for specified uses. Soil scientists

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 soilvegetation-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 soil color,

texture, size and shape of soil aggregates, kind and

amount of rock fragments, distribution of plant roots,

soil 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. Interpretations are modified as

necessary 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

scientists can predict with a fairly high degree of

accuracy that a given soil will have a water table within

certain depths in most years, but they cannot predict

that the 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 may not fully agree with those of

the soils in adjacent survey areas. Differences are the

result of an improved 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.
5

The general soil map in this publication shows

broad areas that have a distinctive pattern of soils,

relief, and drainage. These broad areas are called

associations. Each association on the general soil

map is a unique natural landscape. Typically, it

consists of one or more major soils or miscellaneous

areas and some minor soils or miscellaneous areas. It

is named for the major soils or miscellaneous areas.

The components of one association can occur in

another but in a different pattern.

The general soil map can be used to compare the

suitability of large areas for general land uses. Areas

of suitable soils can be identified on the map. Likewise,

areas where the soils 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 association differ from place to

place in slope, depth, drainage, and other

characteristics that affect management.

1. Dinsmore-Klingmore-Maxmore

Association

Extent of the association in the survey area: 4 percent

Component Description

Dinsmore and similar soils

Extent: 47 to 57 percent of the mapped areas

Geomorphic setting: Uplands; hills

Position on the landform: Summits

Geomorphic component: Interfluves

Slope range: 2 to 5 percent

Depth to restrictive feature: Very deep (more than 60

inches)

Drainage class: Moderately well drained

Parent material: Loess and the underlying glacial till

Flooding: None

Shallowest depth to wet zone: 4 feet (April)

Deepest depth to wet zone: More than 6.7 feet

(September)

Ponding: None

Available water capacity to a depth of 60 inches: 11.7

inches

Content of organic matter in the upper 10 inches: 3.3

percent

Klingmore and similar soils

Extent: 16 to 26 percent of the mapped areas

Geomorphic setting: Uplands; hills

Position on the landform: Summits

Geomorphic component: Interfluves

Slope range: 1 to 3 percent

Depth to restrictive feature: Very deep (more than 60

inches)

Drainage class: Somewhat poorly drained

Parent material: Loess and the underlying glacial till

Flooding: None

Shallowest depth to wet zone: 1 foot (April)

Deepest depth to wet zone: 4 feet (September)

Ponding: None

Available water capacity to a depth of 60 inches: 12.1

inches

Content of organic matter in the upper 10 inches: 5.3

percent

Maxmore and similar soils

Extent: 14 to 24 percent of the mapped areas

Geomorphic setting: Flats; uplands

Position on the landform: Summits

Geomorphic component: Interfluves

Slope range: 0 to 2 percent

Depth to restrictive feature: Very deep (more than 60

inches)

Drainage class: Poorly drained

Parent material: Loess and the underlying glacial till

Flooding: None

Shallowest depth to wet zone: At the surface (April)

Deepest depth to wet zone: 3 feet (September)

Ponding: None

Available water capacity to a depth of 60 inches: 11.9

inches

Content of organic matter in the upper 10 inches: 6.6

percent

General Soil Map Units
6 Soil Survey of

Minor Dissimilar Components

Sawmill and similar soils

Extent: 3 to 13 percent of the mapped areas

2. Dinsdale-Klinger-Maxfield

Association (fig. 3)

Extent of the association in the survey area: 11 percent

Component Description

Dinsdale and similar soils

Extent: 38 to 48 percent of the mapped areas

Geomorphic setting: Uplands; hills

Position on the landform: Summits

Geomorphic component: Interfluves

Slope range: 2 to 9 percent

Depth to restrictive feature: Very deep (more than 60

inches)

Drainage class: Moderately well drained

Parent material: Loess and the underlying glacial till

Flooding: None

Shallowest depth to wet zone: 4 feet (April)

Deepest depth to wet zone: More than 6.7 feet

(September)

Ponding: None

Available water capacity to a depth of 60 inches: 11.6

inches

Content of organic matter in the upper 10 inches: 3.2

percent

Klinger and similar soils

Extent: 16 to 26 percent of the mapped areas

Geomorphic setting: Uplands; hills

Position on the landform: Summits

Geomorphic component: Interfluves

Slope range: 1 to 3 percent

Depth to restrictive feature: Very deep (more than 60

inches)

Drainage class: Somewhat poorly drained

Parent material: Loess and the underlying glacial till

Flooding: None

Shallowest depth to wet zone: 1 foot (April)

Deepest depth to wet zone: 4 feet (September)

Ponding: None

Figure 3.—Typical pattern of soils and parent material in the Dinsdale-Klinger-Maxfield association.
Black Hawk County, Iowa 7

Available water capacity to a depth of 60 inches: 11.8

inches

Content of organic matter in the upper 10 inches: 5.4

percent

Maxfield and similar soils

Extent: 11 to 21 percent of the mapped areas

Geomorphic setting: Flats on uplands

Position on the landform: Summits

Slope range: 0 to 2 percent

Depth to restrictive feature: Very deep (more than 60

inches)

Drainage class: Poorly drained

Parent material: Loess and the underlying glacial till

Flooding: None

Shallowest depth to wet zone: At the surface (April)

Deepest depth to wet zone: 3 feet (September)

Ponding: None

Available water capacity to a depth of 60 inches: 11.6

inches

Content of organic matter in the upper 10 inches: 6.4

percent

Minor Dissimilar Components

Kenyon and similar soils

Extent: 5 to 15 percent of the mapped areas

Sawmill and similar soils

Extent: 5 to 15 percent of the mapped areas

3. Kenyon-Clyde-Floyd Association

Extent of the association in the survey area: 34 percent

Component Description

Kenyon and similar soils

Extent: 35 to 45 percent of the mapped areas

Geomorphic setting: Hills; uplands

Position on the landform: Summits

Geomorphic component: Interfluves

Slope range: 2 to 14 percent

Depth to restrictive feature: Very deep (more than 60

inches)

Drainage class: Moderately well drained

Parent material: Loamy sediments and the underlying

glacial till

Flooding: None

Shallowest depth to wet zone: 4 feet (April)

Deepest depth to wet zone: More than 6.7 feet

(September)

Ponding: None

Available water capacity to a depth of 60 inches: 11.3

inches

Content of organic matter in the upper 10 inches: 3.3

percent

Clyde and similar soils

Extent: 14 to 24 percent of the mapped areas

Geomorphic setting: Drainageways on uplands

Slope range: 0 to 3 percent

Depth to restrictive feature: Very deep (more than 60

inches)

Drainage class: Poorly drained

Parent material: Loamy sediments and the underlying

glacial till

Flooding: None

Shallowest depth to wet zone: At the surface (April)

Deepest depth to wet zone: 3 feet (September)

Ponding: None

Available water capacity to a depth of 60 inches: 11.7

inches

Content of organic matter in the upper 10 inches: 7

percent

Floyd and similar soils

Extent: 12 to 22 percent of the mapped areas

Geomorphic setting: Hills; uplands

Position on the landform: Footslopes

Geomorphic component: Base slopes

Slope range: 1 to 4 percent

Depth to restrictive feature: Very deep (more than 60

inches)

Drainage class: Somewhat poorly drained

Parent material: Loamy sediments and the underlying

glacial till

Flooding: None

Shallowest depth to wet zone: 1 foot (April)

Deepest depth to wet zone: 4 feet (September)

Ponding: None

Available water capacity to a depth of 60 inches: 10.7

inches

Content of organic matter in the upper 10 inches: 5.2

percent

Minor Dissimilar Components

Olin and similar soils

Extent: 0 to 9 percent of the mapped areas

Marquis and similar soils

Extent: 0 to 9 percent of the mapped areas

Sparta and similar soils

Extent: 0 to 9 percent of the mapped areas
8 Soil Survey of

Klinger and similar soils

Extent: 0 to 8 percent of the mapped areas

Maxfield and similar soils

Extent: 0 to 8 percent of the mapped areas

Dinsdale and similar soils

Extent: 0 to 8 percent of the mapped areas

Sawmill and similar soils

Extent: 0 to 8 percent of the mapped areas

4. Readlyn-Tripoli Association

Extent of the association in the survey area: 6 percent

Component Description

Readlyn and similar soils

Extent: 51 to 61 percent of the mapped areas

Geomorphic setting: Hills; uplands

Position on the landform: Summits

Geomorphic component: Interfluves

Slope range: 1 to 3 percent

Depth to restrictive feature: Very deep (more than 60

inches)

Drainage class: Somewhat poorly drained

Parent material: Loamy sediments and the underlying

glacial till

Flooding: None

Shallowest depth to wet zone: 1 foot (April)

Deepest depth to wet zone: 4 feet (September)

Ponding: None

Available water capacity to a depth of 60 inches: 11.3

inches

Content of organic matter in the upper 10 inches: 4.7

percent

Tripoli and similar soils

Extent: 31 to 41 percent of the mapped areas

Geomorphic setting: Flats on uplands

Position on the landform: Summits

Slope range: 0 to 2 percent

Depth to restrictive feature: Very deep (more than 60

inches)

Drainage class: Poorly drained

Parent material: Loamy sediments and the underlying

glacial till

Flooding: None

Shallowest depth to wet zone: At the surface (April)

Deepest depth to wet zone: 3 feet (September)

Ponding: None

Available water capacity to a depth of 60 inches: 11.1

inches

Content of organic matter in the upper 10 inches: 6.4

percent

Minor Dissimilar Components

Marquis and similar soils

Extent: 0 to 10 percent of the mapped areas

Kenyon and similar soils

Extent: 0 to 8 percent of the mapped areas

5. Sparta-Finchford-Saude Association

Extent of the association in the survey area: 23

percent

Component Description

Sparta and similar soils

Extent: 17 to 27 percent of the mapped areas

Geomorphic setting: Uplands; stream terraces

Position on the landform: Summits

Slope range: 0 to 9 percent

Depth to restrictive feature: Very deep (more than 60

inches)

Drainage class: Excessively drained

Parent material: Eolian sands

Flooding: None

Depth to wet zone: More than 6.7 feet all year

Ponding: None

Available water capacity to a depth of 60 inches: 4.7

inches

Content of organic matter in the upper 10 inches: 1.5

percent

Finchford and similar soils

Extent: 16 to 26 percent of the mapped areas

Geomorphic setting: Stream terraces

Geomorphic component: Treads

Slope range: 0 to 9 percent

Depth to restrictive feature: Very deep (more than 60

inches)

Drainage class: Excessively drained

Parent material: Alluvium

Flooding: None

Depth to wet zone: More than 6.7 feet all year

Ponding: None

Available water capacity to a depth of 60 inches: 3.5

inches

Content of organic matter in the upper 10 inches: 1.3

percent
Black Hawk County, Iowa 9

Saude and similar soils

Extent: 13 to 23 percent of the mapped areas

Geomorphic setting: Stream terraces

Geomorphic component: Treads

Slope range: 0 to 5 percent

Depth to restrictive feature: Very deep (more than 60

inches)

Drainage class: Well drained

Parent material: Alluvium

Flooding: None

Depth to wet zone: More than 6.7 feet all year

Ponding: None

Available water capacity to a depth of 60 inches: 6.5

inches

Content of organic matter in the upper 10 inches: 3.4

percent

Minor Dissimilar Components

Marshan and similar soils

Extent: 7 to 17 percent of the mapped areas

Lawler and similar soils

Extent: 4 to 14 percent of the mapped areas

Spillville and similar soils

Extent: 2 to 12 percent of the mapped areas

Coland and similar soils

Extent: 2 to 12 percent of the mapped areas

Wiota and similar soils

Extent: 0 to 9 percent of the mapped areas

6. Coland-Spillville Association (fig. 4)

Extent of the association in the survey area: 11

percent

Component Description

Coland and similar soils

Extent: 37 to 47 percent of the mapped areas

Geomorphic setting: Flood plains

Slope range: 0 to 2 percent

Depth to restrictive feature: Very deep (more than 60

inches)

Drainage class: Poorly drained

Parent material: Alluvium

Months in which flooding does not occur: January,

December

Highest frequency of flooding: Occasional (February,

March, April, May, June, July, August, September,

October, November)

Shallowest depth to wet zone: At the surface (April)

Deepest depth to wet zone: 3 feet (September)

Ponding: None

Available water capacity to a depth of 60 inches: 11.4

inches

Content of organic matter in the upper 10 inches: 5.7

percent

Spillville and similar soils

Extent: 23 to 33 percent of the mapped areas

Geomorphic setting: Flood plains

Slope range: 0 to 2 percent

Depth to restrictive feature: Very deep (more than 60

inches)

Drainage class: Somewhat poorly drained

Parent material: Alluvium

Months in which flooding does not occur: January,

December

Highest frequency of flooding: Occasional (February,

March, April, May, June, July, August, September,

October, November)

Shallowest depth to wet zone: 1 foot (April)

Deepest depth to wet zone: 4 feet (September)

Ponding: None

Available water capacity to a depth of 60 inches: 11.8

inches

Content of organic matter in the upper 10 inches: 4.1

percent

Minor Dissimilar Components

Sigglekov and similar soils

Extent: 2 to 12 percent of the mapped areas

Saude and similar soils

Extent: 1 to 11 percent of the mapped areas

Finchford and similar soils

Extent: 0 to 10 percent of the mapped areas

Nevin and similar soils

Extent: 0 to 10 percent of the mapped areas

Lawler and similar soils

Extent: 0 to 8 percent of the mapped areas

Sparta and similar soils

Extent: 0 to 7 percent of the mapped areas

Marshan and similar soils

Extent: 0 to 7 percent of the mapped areas
10 Soil Survey of

7. Marquis-Clyde-Floyd Association

(fig. 5)

Extent of the association in the survey area: 11 percent

Component Description

Marquis and similar soils

Extent: 43 to 53 percent of the mapped areas

Geomorphic setting: Uplands; hills

Position on the landform: Summits

Geomorphic component: Interfluves

Slope range: 2 to 5 percent

Depth to restrictive feature: Very deep (more than 60

inches)

Drainage class: Moderately well drained

Parent material: Loamy sediments and the underlying

glacial till

Flooding: None

Shallowest depth to wet zone: 2 feet (April)

Deepest depth to wet zone: 5 feet (September)

Ponding: None

Available water capacity to a depth of 60 inches: 11.3

inches

Content of organic matter in the upper 10 inches: 3.5

percent

Clyde and similar soils

Extent: 18 to 28 percent of the mapped areas

Geomorphic setting: Drainageways on uplands

Slope range: 0 to 3 percent

Depth to restrictive feature: Very deep (more than 60

inches)

Drainage class: Poorly drained

Parent material: Loamy sediments and the underlying

glacial till

Flooding: None

Shallowest depth to wet zone: At the surface (April)

Deepest depth to wet zone: 3 feet (September)

Ponding: None

Available water capacity to a depth of 60 inches: 11.7

inches

Content of organic matter in the upper 10 inches: 7

percent

Floyd and similar soils

Extent: 15 to 25 percent of the mapped areas

Geomorphic setting: Hills; uplands

Figure 4.—Typical pattern of soils and parent material in the Coland-Spillville association.
Black Hawk County, Iowa 11

Position on the landform: Footslopes

Geomorphic component: Base slopes

Slope range: 1 to 4 percent

Depth to restrictive feature: Very deep (more than 60

inches)

Drainage class: Somewhat poorly drained

Parent material: Loamy sediments and the underlying

glacial till

Flooding: None

Shallowest depth to wet zone: 1 foot (April)

Deepest depth to wet zone: 4 feet (September)

Ponding: None

Figure 5.—Typical pattern of soils and parent material in the Marquis-Clyde-Floyd association.

Available water capacity to a depth of 60 inches: 10.7

inches

Content of organic matter in the upper 10 inches: 5.2

percent

Minor Dissimilar Components

Kenyon and similar soils

Extent: 1 to 11 percent of the mapped areas

Olin and similar soils

Extent: 0 to 8 percent of the mapped areas

13

The map units delineated on the detailed soil maps

in this survey 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.

A map unit delineation on a soil map represents an

area dominated by one or more major kinds of soil or

miscellaneous areas. A map unit is identified and

named according to the taxonomic classification of the

dominant soils. Within a taxonomic class there are

precisely defined limits for the properties of the soils.

On the landscape, however, the soils 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, can be mapped

without including areas of other taxonomic classes.

Consequently, every map unit is made up of the soils

or miscellaneous areas for which it is named and

some minor components that belong to taxonomic

classes other than those of the major soils.

Most minor 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, components. They

may or may not be mentioned in a particular map unit

description. Other minor components, however, have

properties and behavioral characteristics divergent

enough to affect use or to require different

management. These are called contrasting, or

dissimilar, components. 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 contrasting

components are mentioned in the map unit

descriptions. A few areas of minor components 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 minor components 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 landforms or landform segments that

have similar use and management requirements. The

delineation of such segments on the map provides

sufficient information for the development of resource

plans. If intensive use of small areas is planned,

however, 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, all the soils of a series have major

horizons that are similar in composition, thickness,

and arrangement.

Soils of one series can differ in texture of the

surface layer, slope, stoniness, salinity, 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, Kenyon

loam, 2 to 5 percent slopes, is a phase of the Kenyon

series.

Some map units are made up of two or more major

soils or miscellaneous areas. These map units are

called complexes. 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. Spillville-Coland

complex, 0 to 2 percent slopes, occasionally flooded,

is an example.

Detailed Soil Map Units
14 Soil Survey of

This survey includes miscellaneous areas. Such

areas have little or no soil material and support little or

no vegetation. Pits, sand and gravel, is an example.

Table 4 gives the acreage and proportionate extent

of each map unit. Other 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.

7—Wiota silty clay loam, 0 to 2 percent

slopes

Component Description

Wiota and similar soils

Extent: 70 to 90 percent of the mapped areas

Geomorphic setting: Stream terraces

Geomorphic component: Treads

Slope range: 0 to 2 percent

Depth to restrictive feature: Very deep (more than 60

inches)

Drainage class: Well drained

Parent material: Alluvium

Flooding: None

Depth to wet zone: More than 6.7 feet all year

Ponding: None

Available water capacity to a depth of 60 inches: 11.4

inches

Content of organic matter in the upper 10 inches: 3.6

percent

Minor Dissimilar Components

Nevin and similar soils

Extent: 0 to 20 percent of the mapped areas

Waukee and similar soils

Extent: 0 to 20 percent of the mapped areas

41—Sparta loamy fine sand, 0 to 2

percent slopes

Component Description

Sparta and similar soils

Extent: 80 to 100 percent of the mapped areas

Geomorphic setting: Stream terraces

Geomorphic component: Treads

Slope range: 0 to 2 percent

Depth to restrictive feature: Very deep (more than 60

inches)

Drainage class: Excessively drained

Parent material: Eolian sands

Flooding: None

Depth to wet zone: More than 6.7 feet all year

Ponding: None

Available water capacity to a depth of 60 inches: 4.7

inches

Content of organic matter in the upper 10 inches: 1.5

percent

Minor Dissimilar Components

Watseka and similar soils

Extent: 0 to 20 percent of the mapped areas

41B—Sparta loamy fine sand, 2 to 5

percent slopes

Component Description

Sparta and similar soils

Extent: 100 percent of the map unit

Geomorphic setting: Uplands; stream terraces

Position on the landform: Summits

Slope range: 2 to 5 percent

Depth to restrictive feature: Very deep (more than 60

inches)

Drainage class: Excessively drained

Parent material: Eolian sands

Flooding: None

Depth to wet zone: More than 6.7 feet all year

Ponding: None

Available water capacity to a depth of 60 inches: 4.7

inches

Content of organic matter in the upper 10 inches: 1.5

percent

41C—Sparta loamy fine sand, 5 to 9

percent slopes

Component Description

Sparta and similar soils

Extent: 100 percent of the map unit

Geomorphic setting: Hillsides; uplands

Position on the landform: Shoulders, backslopes

Geomorphic component: Interfluves

Slope range: 5 to 9 percent

Depth to restrictive feature: Very deep (more than 60

inches)

Drainage class: Excessively drained

Parent material: Eolian sands

Flooding: None

Depth to wet zone: More than 6.7 feet all year

Ponding: None
Black Hawk County, Iowa 15

Available water capacity to a depth of 60 inches: 4.7

inches

Content of organic matter in the upper 10 inches: 1.4

percent

41D—Sparta loamy fine sand, 9 to 14

percent slopes

Component Description

Sparta and similar soils

Extent: 100 percent of the map unit

Geomorphic setting: Hillsides; uplands

Position on the landform: Backslopes

Geomorphic component: Side slopes

Slope range: 9 to 14 percent

Depth to restrictive feature: Very deep (more than 60

inches)

Drainage class: Excessively drained

Parent material: Eolian sands

Flooding: None

Depth to wet zone: More than 6.7 feet all year

Ponding: None

Available water capacity to a depth of 60 inches: 4.6

inches

Content of organic matter in the upper 10 inches: 1.4

percent

63B—Chelsea loamy fine sand, 2 to 5

percent slopes

Component Description

Chelsea and similar soils

Extent: 85 to 95 percent of the mapped areas

Geomorphic setting: Stream terraces; uplands

Position on the landform: Summits

Slope range: 2 to 5 percent

Depth to restrictive feature: Very deep (more than 60

inches)

Drainage class: Excessively drained

Parent material: Eolian sands

Flooding: None

Depth to wet zone: More than 6.7 feet all year

Ponding: None

Available water capacity to a depth of 60 inches: 4.7

inches

Content of organic matter in the upper 10 inches: 0.9

percent

Minor Dissimilar Components

Billett and similar soils

Extent: 5 to 15 percent of the mapped areas

63C—Chelsea loamy fine sand, 5 to 9

percent slopes

Component Description

Chelsea and similar soils

Extent: 80 to 90 percent of the mapped areas

Geomorphic setting: Uplands; hillsides

Position on the landform: Shoulders, backslopes

Geomorphic component: Interfluves

Slope range: 5 to 9 percent

Depth to restrictive feature: Very deep (more than 60

inches)

Drainage class: Excessively drained

Parent material: Eolian sands

Flooding: None

Depth to wet zone: More than 6.7 feet all year

Ponding: None

Available water capacity to a depth of 60 inches: 4.7

inches

Content of organic matter in the upper 10 inches: 0.9

percent

Minor Dissimilar Components

Billett and similar soils

Extent: 10 to 20 percent of the mapped areas

63D—Chelsea loamy fine sand, 9 to 14

percent slopes

Component Description

Chelsea and similar soils

Extent: 85 to 95 percent of the mapped areas

Geomorphic setting: Hillsides; uplands

Position on the landform: Backslopes

Geomorphic component: Side slopes

Slope range: 9 to 14 percent

Depth to restrictive feature: Very deep (more than 60

inches)

Drainage class: Excessively drained

Parent material: Eolian sands

Flooding: None

Depth to wet zone: More than 6.7 feet all year

Ponding: None

Available water capacity to a depth of 60 inches: 4.7

inches

Content of organic matter in the upper 10 inches: 0.9

percent

Minor Dissimilar Components

Billett and similar soils

Extent: 5 to 15 percent of the mapped areas
16 Soil Survey of

83B—Kenyon loam, 2 to 5 percent slopes

Component Description

Kenyon and similar soils

Extent: 80 to 100 percent of the mapped areas

Geomorphic setting: Uplands; hills

Position on the landform: Summits

Geomorphic component: Interfluves

Slope range: 2 to 5 percent

Depth to restrictive feature: Very deep (more than 60

inches)

Drainage class: Moderately well drained

Parent material: Loamy sediments and the underlying

glacial till

Flooding: None

Shallowest depth to wet zone: 4 feet (April)

Deepest depth to wet zone: More than 6.7 feet

(September)

Ponding: None

Available water capacity to a depth of 60 inches: 11.3

inches

Content of organic matter in the upper 10 inches: 3.3

percent

Minor Dissimilar Components

Aredale and similar soils

Extent: 0 to 20 percent of the mapped areas

83C—Kenyon loam, 5 to 9 percent slopes

Component Description

Kenyon and similar soils

Extent: 70 to 90 percent of the mapped areas

Geomorphic setting: Uplands; hillsides

Position on the landform: Shoulders, backslopes

Geomorphic component: Interfluves

Slope range: 5 to 9 percent

Depth to restrictive feature: Very deep (more than 60

inches)

Drainage class: Moderately well drained

Parent material: Loamy sediments and the underlying

glacial till

Flooding: None

Shallowest depth to wet zone: 4 feet (April)

Deepest depth to wet zone: More than 6.7 feet

(September)

Ponding: None

Available water capacity to a depth of 60 inches: 11.3

inches

Content of organic matter in the upper 10 inches: 3.3

percent

Minor Dissimilar Components

Kenyon, moderately eroded, and similar soils

Extent: 0 to 20 percent of the mapped areas

Aredale and similar soils

Extent: 0 to 20 percent of the mapped areas

83C2—Kenyon loam, 5 to 9 percent

slopes, moderately eroded

Component Description

Kenyon, moderately eroded, and similar soils

Extent: 65 to 85 percent of the mapped areas

Geomorphic setting: Uplands; hillsides

Position on the landform: Backslopes, shoulders

Geomorphic component: Interfluves

Slope range: 5 to 9 percent

Depth to restrictive feature: Very deep (more than 60

inches)

Drainage class: Moderately well drained

Parent material: Loamy sediments and the underlying

glacial till

Flooding: None

Shallowest depth to wet zone: 4 feet (April)

Deepest depth to wet zone: More than 6.7 feet

(September)

Ponding: None

Available water capacity to a depth of 60 inches: 11.2

inches

Content of organic matter in the upper 10 inches: 2.4

percent

Minor Dissimilar Components

Aredale, moderately eroded, and similar soils

Extent: 5 to 25 percent of the mapped areas

Kenyon and similar soils

Extent: 0 to 20 percent of the mapped areas

83D2—Kenyon loam, 9 to 14 percent

slopes, moderately eroded

Component Description

Kenyon, moderately eroded, and similar soils

Extent: 80 to 100 percent of the mapped areas

Geomorphic setting: Uplands; hillsides

Position on the landform: Backslopes

Geomorphic component: Side slopes

Slope range: 9 to 14 percent
Black Hawk County, Iowa 17

Depth to restrictive feature: More than 60 inches

Drainage class: Moderately well drained

Parent material: Loamy sediments and the underlying

glacial till

Flooding: None

Shallowest depth to wet zone: 4 feet (April)

Deepest depth to wet zone: More than 6.7 feet

(September)

Ponding: None

Available water capacity to a depth of 60 inches: 11.2

inches

Content of organic matter in the upper 10 inches: 2.4

percent

Minor Dissimilar Components

Kenyon and similar soils

Extent: 0 to 20 percent of the mapped areas

84—Clyde silty clay loam, 0 to 3 percent

slopes

Component Description

Clyde and similar soils

Extent: 75 to 95 percent of the mapped areas

Geomorphic setting: Drainageways on uplands

Slope range: 0 to 3 percent

Depth to restrictive feature: Very deep (more than 60

inches)

Drainage class: Poorly drained

Parent material: Loamy sediments and the underlying

glacial till

Flooding: None

Shallowest depth to wet zone: At the surface (April)

Deepest depth to wet zone: 3 feet (September)

Ponding: None

Available water capacity to a depth of 60 inches: 11.7

inches

Content of organic matter in the upper 10 inches: 7

percent

Minor Dissimilar Components

Floyd and similar soils

Extent: 5 to 25 percent of the mapped areas

88—Nevin silty clay loam, 0 to 2 percent

slopes

Component Description

Nevin and similar soils

Extent: 60 to 80 percent of the mapped areas

Geomorphic setting: Stream terraces

Geomorphic component: Treads

Slope range: 0 to 2 percent

Depth to restrictive feature: Very deep (more than 60

inches)

Drainage class: Somewhat poorly drained

Parent material: Alluvium

Months in which flooding does not occur: January,

February, December

Highest frequency of flooding: Rare (March, April, May,

June, July, August,

September, October, November)

Shallowest depth to wet zone: 1 foot (April)

Deepest depth to wet zone: 4 feet (September)

Ponding: None

Available water capacity to a depth of 60 inches: 12.1

inches

Content of organic matter in the upper 10 inches: 4.6

percent

Minor Dissimilar Components

Wiota and similar soils

Extent: 10 to 30 percent of the mapped areas

Colo, occasionally flooded, and similar soils

Extent: 0 to 20 percent of the mapped areas

133—Colo silty clay loam, 0 to 2 percent

slopes, occasionally flooded

Component Description

Colo, occasionally flooded, and similar soils

Extent: 100 percent of the mapped areas

Geomorphic setting: Flood plains

Slope range: 0 to 2 percent

Depth to restrictive feature: Very deep (more than 60

inches)

Drainage class: Poorly drained

Parent material: Alluvium

Months in which flooding does not occur: January,

December

Highest frequency of flooding: Occasional (February,

March, April, May,

June, July, August, September, October, November)

Shallowest depth to wet zone: At the surface (April)

Deepest depth to wet zone: 3 feet (September)

Ponding: None

Available water capacity to a depth of 60 inches: 12.6

inches

Content of organic matter in the upper 10 inches: 5.7

percent
18 Soil Survey of

135—Coland clay loam, 0 to 2 percent

slopes, occasionally flooded

Component Description

Coland, occasionally flooded, and similar soils

Extent: 100 percent of the map unit

Geomorphic setting: Flood plains

Slope range: 0 to 2 percent

Depth to restrictive feature: Very deep (more than 60

inches)

Drainage class: Poorly drained

Parent material: Alluvium

Months in which flooding does not occur: January,

December

Highest frequency of flooding: Occasional (February,

March, April, May, June, July, August, September,

October, November)

Shallowest depth to wet zone: At the surface (April)

Deepest depth to wet zone: 3 feet (September)

Ponding: None

Available water capacity to a depth of 60 inches: 11.4

inches

Content of organic matter in the upper 10 inches: 5.7

percent

159—Finchford loamy sand, 0 to 2 percent

slopes

Component Description

Finchford and similar soils

Extent: 80 to 100 percent of the mapped areas

Geomorphic setting: Stream terraces

Geomorphic component: Treads

Slope range: 0 to 2 percent

Depth to restrictive feature: Very deep (more than 60

inches)

Drainage class: Excessively drained

Parent material: Alluvium

Flooding: None

Depth to wet zone: More than 6.7 feet all year

Ponding: None

Available water capacity to a depth of 60 inches: 3.5

inches

Content of organic matter in the upper 10 inches: 1.3

percent

Minor Dissimilar Components

Flagler and similar soils

Extent: 0 to 20 percent of the mapped areas

159C—Finchford loamy sand, 2 to 9

percent slopes

Component Description

Finchford and similar soils

Extent: 100 percent of the map unit

Geomorphic setting: Stream terraces

Geomorphic component: Risers

Slope range: 2 to 9 percent

Depth to restrictive feature: Very deep (more than 60

inches)

Drainage class: Excessively drained

Parent material: Alluvium

Flooding: None

Depth to wet zone: More than 6.7 feet all year

Ponding: None

Available water capacity to a depth of 60 inches: 3.2

inches

Content of organic matter in the upper 10 inches: 1.3

percent

171B—Bassett loam, 2 to 5 percent

slopes

Component Description

Bassett and similar soils

Extent: 80 to 100 percent of the mapped areas

Geomorphic setting: Hills; uplands

Position on the landform: Summits

Geomorphic component: Interfluves

Slope range: 2 to 5 percent

Depth to restrictive feature: Very deep (more than 60

inches)

Drainage class: Moderately well drained

Parent material: Loamy sediments and the underlying

glacial till

Flooding: None

Shallowest depth to wet zone: 2 feet (April)

Deepest depth to wet zone: 5 feet (September)

Ponding: None

Available water capacity to a depth of 60 inches: 11.1

inches

Content of organic matter in the upper 10 inches: 2.5

percent

Minor Dissimilar Components

Kenyon and similar soils

Extent: 0 to 20 percent of the mapped areas
Black Hawk County, Iowa 19

175—Dickinson fine sandy loam, 0 to 2

percent slopes

Component Description

Dickinson and similar soils

Extent: 70 to 90 percent of the mapped areas

Geomorphic setting: Stream terraces

Geomorphic component: Treads

Slope range: 0 to 2 percent

Depth to restrictive feature: Very deep (more than 60

inches)

Drainage class: Well drained

Parent material: Eolian sands

Flooding: None

Depth to wet zone: More than 6.7 feet all year

Ponding: None

Available water capacity to a depth of 60 inches: 5.4

inches

Content of organic matter in the upper 10 inches: 2.4

percent

Minor Dissimilar Components

Finchford and similar soils

Extent: 0 to 20 percent of the mapped areas

Sparta and similar soils

Extent: 0 to 20 percent of the mapped areas

175B—Dickinson fine sandy loam, 2 to 5

percent slopes

Component Description

Dickinson and similar soils

Extent: 80 to 100 percent of the mapped areas

Geomorphic setting: Uplands; stream terraces

Position on the landform: Summits

Slope range: 2 to 5 percent

Depth to restrictive feature: Very deep (more than 60

inches)

Drainage class: Well drained

Parent material: Eolian sands

Flooding: None

Depth to wet zone: More than 6.7 feet all year

Ponding: None

Available water capacity to a depth of 60 inches: 5.4

inches

Content of organic matter in the upper 10 inches: 2

percent

Minor Dissimilar Components

Sparta and similar soils

Extent: 0 to 20 percent of the mapped areas

177—Saude loam, 0 to 2 percent slopes

Component Description

Saude and similar soils

Extent: 80 to 100 percent of the mapped areas

Geomorphic setting: Stream terraces

Geomorphic component: Treads

Slope range: 0 to 2 percent

Depth to restrictive feature: Very deep (more than 60

inches)

Drainage class: Well drained

Parent material: Alluvium

Flooding: None

Depth to wet zone: More than 6.7 feet all year

Ponding: None

Available water capacity to a depth of 60 inches: 6.5

inches

Content of organic matter in the upper 10 inches: 3.4

percent

Minor Dissimilar Components

Lawler soils that are 24 to 40 inches to sand and

gravel

Extent: 0 to 20 percent of the mapped areas

177B—Saude loam, 2 to 5 percent slopes

Component Description

Saude and similar soils

Extent: 80 to 100 percent of the mapped areas

Geomorphic setting: Stream terraces

Geomorphic component: Treads

Slope range: 2 to 5 percent

Depth to restrictive feature: Very deep (more than 60

inches)

Drainage class: Well drained

Parent material: Alluvium

Flooding: None

Depth to wet zone: More than 6.7 feet all year

Ponding: None

Available water capacity to a depth of 60 inches: 6.5

inches
20 Soil Survey of

Content of organic matter in the upper 10 inches: 3.4

percent

Minor Dissimilar Components

Finchford and similar soils

Extent: 0 to 20 percent of the mapped areas

178—Waukee loam, 0 to 2 percent slopes

Component Description

Waukee and similar soils

Extent: 70 to 90 percent of the mapped areas

Geomorphic setting: Stream terraces

Geomorphic component: Treads

Slope range: 0 to 2 percent

Depth to restrictive feature: Very deep (more than 60

inches)

Drainage class: Well drained

Parent material: Alluvium (fig. 6)

Flooding: None

Depth to wet zone: More than 6.7 feet all year

Ponding: None

Available water capacity to a depth of 60 inches: 7.6

inches

Content of organic matter in the upper 10 inches: 3.3

percent

Minor Dissimilar Components

Saude and similar soils

Extent: 0 to 20 percent of the mapped areas

Wiota and similar soils

Extent: 0 to 20 percent of the mapped areas

178B—Waukee loam, 2 to 5 percent

slopes

Component Description

Waukee and similar soils

Extent: 70 to 90 percent of the mapped areas

Geomorphic setting: Stream terraces

Geomorphic component: Treads

Slope range: 2 to 5 percent

Depth to restrictive feature: Very deep (more than 60

inches)

Drainage class: Well drained

Parent material: Alluvium

Flooding: None

Depth to wet zone: More than 6.7 feet all year

Ponding: None

Available water capacity to a depth of 60 inches: 7.6

inches

Content of organic matter in the upper 10 inches: 3.3

percent

Minor Dissimilar Components

Saude and similar soils

Extent: 0 to 20 percent of the mapped areas

Wiota and similar soils

Extent: 0 to 20 percent of the mapped areas

184—Klinger silty clay loam, 1 to 3

percent slopes

Component Description

Klinger and similar soils

Extent: 100 percent of the map unit

Geomorphic setting: Hills; uplands

Position on the landform: Summits

Geomorphic component: Interfluves

Slope range: 1 to 3 percent

Depth to restrictive feature: Very deep (more than 60

inches)

Drainage class: Somewhat poorly drained

Parent material: Loess and the underlying glacial till

Flooding: None

Shallowest depth to wet zone: 1 foot (April)

Deepest depth to wet zone: 4 feet (September)

Ponding: None

Available water capacity to a depth of 60 inches: 11.8

inches

Content of organic matter in the upper 10 inches: 5.4

percent

198B—Floyd loam, 1 to 4 percent slopes

Component Description

Floyd and similar soils

Extent: 80 to 100 percent of the mapped areas

Geomorphic setting: Uplands; hills

Position on the landform: Footslopes

Geomorphic component: Base slopes

Slope range: 1 to 4 percent

Depth to restrictive feature: Very deep (more than 60

inches)
Black Hawk County, Iowa 21

Drainage class: Somewhat poorly drained

Parent material: Loamy sediments and the underlying

glacial till

Flooding: None

Shallowest depth to wet zone: 1 foot (April)

Deepest depth to wet zone: 4 feet (September)

Ponding: None

Available water capacity to a depth of 60 inches: 10.7

inches

Content of organic matter in the upper 10 inches: 5.2

percent

Minor Dissimilar Components

Clyde and similar soils

Extent: 0 to 20 percent of the mapped areas

213B—Rockton loam, 30 to 40 inches to

limestone, 2 to 5 percent slopes

Component Description

Rockton, 30 to 40 inches to limestone, and similar

soils

Extent: 60 to 80 percent of the mapped areas

Geomorphic setting: Uplands; hills

Position on the landform: Shoulders, summits

Slope range: 2 to 5 percent

Depth to restrictive feature: 30 to 40 inches to bedrock

(lithic)

Drainage class: Well drained

Parent material: Loamy sediments and the underlying

clayey residuum from limestone bedrock

Figure 6.—An area of Waukee loam in the Cedar River valley. Large, flat alluvial terraces stretch for miles along either side of the

Cedar River.
22 Soil Survey of

Flooding: None

Depth to wet zone: More than 6.7 feet all year

Ponding: None

Available water capacity to a depth of 60 inches: 6.4

inches

Content of organic matter in the upper 10 inches: 3.5

percent

Minor Dissimilar Components

Atkinson and similar soils

Extent: 5 to 25 percent of the mapped areas

Emeline and similar soils

Extent: 5 to 25 percent of the mapped areas

221—Klossner muck, 1 to 3 percent

slopes

Component Description

Klossner and similar soils

Extent: 100 percent of the map unit

Geomorphic setting: Fens; uplands

Position on the landform: Shoulders

Slope range: 1 to 3 percent

Depth to restrictive feature: Very deep (more than 60

inches)

Drainage class: Very poorly drained

Parent material: Organic material overlying loamy

deposits

Flooding: None

Wet zone: At the surface all year

Ponding: None

Available water capacity to a depth of 60 inches: 21.3

inches

Content of organic matter in the upper 10 inches: 75

percent

284—Flagler sandy loam, 0 to 2 percent

slopes

Component Description

Flagler and similar soils

Extent: 70 to 90 percent of the mapped areas

Geomorphic setting: Stream terraces

Geomorphic component: Treads

Slope range: 0 to 2 percent

Depth to restrictive feature: Very deep (more than 60

inches)

Drainage class: Somewhat excessively drained

Parent material: Alluvium

Flooding: None

Depth to wet zone: More than 6.7 feet all year

Ponding: None

Available water capacity to a depth of 60 inches: 5

inches

Content of organic matter in the upper 10 inches: 1.9

percent

Minor Dissimilar Components

Finchford and similar soils

Extent: 0 to 20 percent of the mapped areas

Saude and similar soils

Extent: 0 to 20 percent of the mapped areas

284B—Flagler sandy loam, 2 to 5 percent

slopes

Component Description

Flagler and similar soils

Extent: 80 to 100 percent of the mapped areas

Geomorphic setting: Stream terraces

Geomorphic component: Treads

Slope range: 2 to 5 percent

Depth to restrictive feature: Very deep (more than 60

inches)

Drainage class: Somewhat excessively drained

Parent material: Alluvium

Flooding: None

Depth to wet zone: More than 6.7 feet all year

Ponding: None

Available water capacity to a depth of 60 inches: 5

inches

Content of organic matter in the upper 10 inches: 1.9

percent

Minor Dissimilar Components

Finchford and similar soils

Extent: 0 to 20 percent of the mapped areas

290—Dells silt loam, 0 to 2 percent slopes

Component Description

Dells and similar soils

Extent: 80 to 100 percent of the mapped areas

Geomorphic setting: Stream terraces

Geomorphic component: Treads

Slope range: 0 to 2 percent

Depth to restrictive feature: Very deep (more than 60

inches)

Drainage class: Somewhat poorly drained
Black Hawk County, Iowa 23

Parent material: Loess and the underlying alluvium

Flooding: None

Shallowest depth to wet zone: 1 foot (April)

Deepest depth to wet zone: 4 feet (September)

Ponding: None

Available water capacity to a depth of 60 inches: 9

inches

Content of organic matter in the upper 10 inches: 2.6

percent

Minor Dissimilar Components

Nevin and similar soils

Extent: 0 to 20 percent of the mapped areas

354—Aquolls, ponded, 0 to 1 percent

slopes

Component Description

Aquolls, ponded, and similar soils

Extent: 80 to 100 percent of the mapped areas

Geomorphic setting: Depressions

Slope range: 0 to 1 percent

Depth to restrictive feature: Very deep (more than 60

inches)

Drainage class: Very poorly drained

Parent material: Alluvium

Flooding: None

Wet zone: At the surface all year

Shallowest ponding: 0.5 foot (August, September,

October)

Deepest ponding: 2 feet (April, May)

Minor Dissimilar Components

Marshan and similar soils

Extent: 0 to 20 percent of the mapped areas

377B—Dinsdale silty clay loam, 2 to 5

percent slopes

Component Description

Dinsdale and similar soils

Extent: 100 percent of the mapped areas

Geomorphic setting: Uplands; hills

Position on the landform: Summits

Geomorphic component: Interfluves

Slope range: 2 to 5 percent

Depth to restrictive feature: Very deep (more than 60

inches)

Drainage class: Moderately well drained

Parent material: Loess and the underlying glacial till

Flooding: None

Shallowest depth to wet zone: 4 feet (April)

Deepest depth to wet zone: More than 6.7 feet

(September)

Ponding: None

Available water capacity to a depth of 60 inches: 11.6

inches

Content of organic matter in the upper 10 inches: 3.2

percent

377C—Dinsdale silty clay loam, 5 to 9

percent slopes

Component Description

Dinsdale and similar soils

Extent: 70 to 90 percent of the mapped areas

Geomorphic setting: Uplands; hillsides

Position on the landform: Backslopes, shoulders

Geomorphic component: Interfluves

Slope range: 5 to 9 percent

Depth to restrictive feature: Very deep (more than 60

inches)

Drainage class: Moderately well drained

Parent material: Loess and the underlying glacial till

Flooding: None

Shallowest depth to wet zone: 4 feet (April)

Deepest depth to wet zone: More than 6.7 feet

(September)

Ponding: None

Available water capacity to a depth of 60 inches: 11.6

inches

Content of organic matter in the upper 10 inches: 3.2

percent

Minor Dissimilar Components

Dinsdale, moderately eroded, and similar soils

Extent: 10 to 30 percent of the mapped areas

377C2—Dinsdale silty clay loam, 5 to 9

percent slopes, moderately eroded

Component Description

Dinsdale, moderately eroded, and similar soils

Extent: 70 to 90 percent of the mapped areas

Geomorphic setting: Uplands; hillsides

Position on the landform: Backslopes, shoulders

Geomorphic component: Interfluves

Slope range: 5 to 9 percent

Depth to restrictive feature: Very deep (more than 60

inches)
24 Soil Survey of

Drainage class: Moderately well drained

Parent material: Loess and the underlying glacial till

Flooding: None

Shallowest depth to wet zone: 4 feet (April)

Deepest depth to wet zone: More than 6.7 feet

(September)

Ponding: None

Available water capacity to a depth of 60 inches: 11.3

inches

Content of organic matter in the upper 10 inches: 2.4

percent

Minor Dissimilar Components

Dinsdale and similar soils

Extent: 10 to 30 percent of the mapped areas

382—Maxfield silty clay loam, 0 to 2

percent slopes

Component Description

Maxfield and similar soils

Extent: 100 percent of the map unit

Geomorphic setting: Flats on uplands

Position on the landform: Summits

Slope range: 0 to 2 percent

Depth to restrictive feature: Very deep (more than 60

inches)

Drainage class: Poorly drained

Parent material: Loess and the underlying glacial till

Flooding: None

Shallowest depth to wet zone: At the surface (April)

Deepest depth to wet zone: 3 feet (September)

Ponding: None

Available water capacity to a depth of 60 inches: 11.6

inches

Content of organic matter in the upper 10 inches: 6.4

percent

391B—Clyde-Floyd complex, 1 to 4

percent slopes

Component Description

Clyde and similar soils

Extent: 55 to 75 percent of the mapped areas

Geomorphic setting: Drainageways on uplands

Position on the landform: Footslopes

Slope range: 1 to 3 percent

Depth to restrictive feature: Very deep (more than 60

inches)

Drainage class: Poorly drained

Parent material: Loamy sediments and the underlying

glacial till

Flooding: None

Shallowest depth to wet zone: At the surface (April)

Deepest depth to wet zone: 3 feet (September)

Ponding: None

Available water capacity to a depth of 60 inches: 11.7

inches

Content of organic matter in the upper 10 inches: 7

percent

Floyd and similar soils

Extent: 25 to 45 percent of the mapped areas

Geomorphic setting: Uplands; hills

Slope range: 1 to 4 percent

Depth to restrictive feature: Very deep (more than 60

inches)

Drainage class: Somewhat poorly drained

Parent material: Loamy sediments and the underlying

glacial till

Flooding: None

Shallowest depth to wet zone: 1 foot (April)

Deepest depth to wet zone: 4 feet (September)

Ponding: None

Available water capacity to a depth of 60 inches: 10.7

inches

Content of organic matter in the upper 10 inches: 5.2

percent

395B—Marquis loam, 2 to 5 percent

slopes

Component Description

Marquis and similar soils

Extent: 80 to 90 percent of the mapped areas

Geomorphic setting: Hills; uplands

Position on the landform: Summits

Geomorphic component: Interfluves

Slope range: 2 to 5 percent

Depth to restrictive feature: Very deep (more than 60

inches)

Drainage class: Moderately well drained

Parent material: Loamy sediments and the underlying

glacial till

Flooding: None

Shallowest depth to wet zone: 2 feet (April)

Deepest depth to wet zone: 5 feet (September)

Ponding: None

Available water capacity to a depth of 60 inches: 11.3

inches

Content of organic matter in the upper 10 inches: 3.5

percent
Black Hawk County, Iowa 25

Minor Dissimilar Components

Kenyon and similar soils

Extent: 5 to 15 percent of the mapped areas

Aredale and similar soils

Extent: 0 to 10 percent of the mapped areas

398—Tripoli clay loam, 0 to 2 percent

slopes

Component Description

Tripoli and similar soils

Extent: 80 to 100 percent of the mapped areas

Geomorphic setting: Flats on uplands

Position on the landform: Summits

Slope range: 0 to 2 percent

Depth to restrictive feature: Very deep (more than 60

inches)

Drainage class: Poorly drained

Parent material: Loamy sediments and the underlying

glacial till

Flooding: None

Shallowest depth to wet zone: At the surface (April)

Deepest depth to wet zone: 3 feet (September)

Ponding: None

Available water capacity to a depth of 60 inches: 11.1

inches

Content of organic matter in the upper 10 inches: 6.4

percent

Minor Dissimilar Components

Readlyn and similar soils

Extent: 0 to 20 percent of the mapped areas

399—Readlyn loam, 1 to 3 percent slopes

Component Description

Readlyn and similar soils

Extent: 75 to 95 percent of the mapped areas

Geomorphic setting: Uplands; hills

Position on the landform: Summits

Geomorphic component: Interfluves

Slope range: 1 to 3 percent

Depth to restrictive feature: Very deep (more than 60

inches)

Drainage class: Somewhat poorly drained

Parent material: Loamy sediments and the underlying

glacial till

Flooding: None

Shallowest depth to wet zone: 1 foot (April)

Deepest depth to wet zone: 4 feet (September)

Ponding: None

Available water capacity to a depth of 60 inches: 11.3

inches

Content of organic matter in the upper 10 inches: 4.7

percent

Minor Dissimilar Components

Tripoli and similar soils

Extent: 5 to 25 percent of the mapped areas

408B—Olin fine sandy loam, 2 to 5

percent slopes

Component Description

Olin and similar soils

Extent: 70 to 90 percent of the mapped areas

Geomorphic setting: Hills; uplands

Position on the landform: Summits

Geomorphic component: Interfluves

Slope range: 2 to 5 percent

Depth to restrictive feature: Very deep (more than 60

inches)

Drainage class: Well drained

Parent material: Sandy sediments and the underlying

glacial till

Flooding: None

Depth to wet zone: More than 6.7 feet all year

Ponding: None

Available water capacity to a depth of 60 inches: 9.5

inches

Content of organic matter in the upper 10 inches: 1.9

percent

Minor Dissimilar Components

Sparta and similar soils

Extent: 5 to 15 percent of the mapped areas

Kenyon and similar soils

Extent: 0 to 20 percent of the mapped areas

408C—Olin fine sandy loam, 5 to 9

percent slopes

Component Description

Olin and similar soils

Extent: 65 to 85 percent of the mapped areas

Geomorphic setting: Hillsides; uplands

Position on the landform: Shoulders, backslopes

Geomorphic component: Interfluves
26 Soil Survey of

Slope range: 5 to 9 percent

Depth to restrictive feature: Very deep (more than 60

inches)

Drainage class: Well drained

Parent material: Sandy sediments and the underlying

glacial till

Flooding: None

Depth to wet zone: More than 6.7 feet all year

Ponding: None

Available water capacity to a depth of 60 inches: 9.5

inches

Content of organic matter in the upper 10 inches: 1.9

percent

Minor Dissimilar Components

Sparta and similar soils

Extent: 5 to 25 percent of the mapped areas

Kenyon and similar soils

Extent: 0 to 20 percent of the mapped areas

412C—Emeline loam, 2 to 9 percent

slopes

Component Description

Emeline and similar soils

Extent: 65 to 85 percent of the mapped areas

Geomorphic setting: Uplands; hillsides

Position on the landform: Backslopes

Slope range: 2 to 9 percent

Depth to restrictive feature: 4 to 12 inches to bedrock

(lithic)

Drainage class: Somewhat excessively drained

Parent material: Loamy sediments overlying limestone

bedrock

Flooding: None

Depth to wet zone: More than 6.7 feet all year

Ponding: None

Available water capacity to a depth of 60 inches: 1.8

inches

Content of organic matter in the upper 10 inches: 2.8

percent

Minor Dissimilar Components

Rockton soils that are 30 to 40 inches to limestone

Extent: 5 to 25 percent of the mapped areas

Rock outcrop

Extent: 0 to 20 percent of the mapped areas

426B—Aredale loam, 2 to 5 percent

slopes

Component Description

Aredale and similar soils

Extent: 70 to 90 percent of the mapped areas

Geomorphic setting: Uplands; hills

Position on the landform: Summits

Geomorphic component: Interfluves

Slope range: 2 to 5 percent

Depth to restrictive feature: Very deep (more than 60

inches)

Drainage class: Well drained

Parent material: Loamy sediments and the underlying

glacial till

Flooding: None

Depth to wet zone: More than 6.7 feet all year

Ponding: None

Available water capacity to a depth of 60 inches: 10

inches

Content of organic matter in the upper 10 inches: 3.2

percent

Minor Dissimilar Components

Kenyon and similar soils

Extent: 10 to 30 percent of the mapped areas

426C—Aredale loam, 5 to 9 percent

slopes

Component Description

Aredale and similar soils

Extent: 65 to 85 percent of the mapped areas

Geomorphic setting: Uplands; hillsides

Position on the landform: Shoulders, backslopes

Geomorphic component: Interfluves

Slope range: 5 to 9 percent

Depth to restrictive feature: Very deep (more than 60

inches)

Drainage class: Well drained

Parent material: Loamy sediments and the underlying

glacial till

Flooding: None

Depth to wet zone: More than 6.7 feet all year

Ponding: None

Available water capacity to a depth of 60 inches: 10

inches

Content of organic matter in the upper 10 inches: 3.2

percent
Black Hawk County, Iowa 27

Minor Dissimilar Components

Kenyon and similar soils

Extent: 5 to 25 percent of the mapped areas

Aredale, moderately eroded, and similar soils

Extent: 0 to 20 percent of the mapped areas

426C2—Aredale loam, 5 to 9 percent

slopes, moderately eroded

Component Description

Aredale, moderately eroded, and similar soils

Extent: 65 to 85 percent of the mapped areas

Geomorphic setting: Uplands; hillsides

Position on the landform: Shoulders, backslopes

Geomorphic component: Interfluves

Slope range: 5 to 9 percent

Depth to restrictive feature: Very deep (more than 60

inches)

Drainage class: Well drained

Parent material: Loamy sediments and the underlying

glacial till

Flooding: None

Depth to wet zone: More than 6.7 feet all year

Ponding: None

Available water capacity to a depth of 60 inches: 9.9

inches

Content of organic matter in the upper 10 inches: 2.3

percent

Minor Dissimilar Components

Kenyon and similar soils

Extent: 5 to 25 percent of the mapped areas

Aredale and similar soils

Extent: 0 to 20 percent of the mapped areas

468B—Dunkerton sandy loam, 2 to 5

percent slopes

Component Description

Dunkerton and similar soils

Extent: 60 to 80 percent of the mapped areas

Geomorphic setting: Uplands; hills

Position on the landform: Summits

Geomorphic component: Interfluves

Slope range: 2 to 5 percent

Depth to restrictive feature: More than 60 inches

Drainage class: Somewhat poorly drained

Parent material: Sandy sediments and the underlying

glacial till

Flooding: None

Shallowest depth to wet zone: 1 foot (April)

Deepest depth to wet zone: 4 feet (September)

Ponding: None

Available water capacity to a depth of 60 inches: 9.8

inches

Content of organic matter in the upper 10 inches: 1

percent

Minor Dissimilar Components

Bassett and similar soils

Extent: 10 to 30 percent of the mapped areas

Olin and similar soils

Extent: 0 to 20 percent of the mapped areas

468C—Dunkerton sandy loam, 5 to 9

percent slopes

Component Description

Dunkerton and similar soils

Extent: 60 to 80 percent of the mapped areas

Geomorphic setting: Hillsides; uplands

Position on the landform: Shoulders, backslopes

Geomorphic component: Interfluves

Slope range: 5 to 9 percent

Depth to restrictive feature: Very deep (more than 60

inches)

Drainage class: Somewhat poorly drained

Parent material: Sandy sediments and the underlying

glacial till

Flooding: None

Shallowest depth to wet zone: 1 foot (April)

Deepest depth to wet zone: 4 feet (September)

Ponding: None

Available water capacity to a depth of 60 inches: 9.8

inches

Content of organic matter in the upper 10 inches: 1

percent

Minor Dissimilar Components

Bassett and similar soils

Extent: 10 to 30 percent of the mapped areas

Sparta and similar soils

Extent: 0 to 20 percent of the mapped areas
28 Soil Survey of

471—Oran loam, 1 to 3 percent slopes

Component Description

Oran and similar soils

Extent: 75 to 95 percent of the mapped areas

Geomorphic setting: Uplands; hills

Position on the landform: Summits

Geomorphic component: Interfluves

Slope range: 1 to 3 percent

Depth to restrictive feature: Very deep (more than 60

inches)

Drainage class: Somewhat poorly drained

Parent material: Loamy sediments and the underlying

glacial till

Flooding: None

Shallowest depth to wet zone: 1 foot (April)

Deepest depth to wet zone: 4 feet (September)

Ponding: None

Available water capacity to a depth of 60 inches: 11

inches

Content of organic matter in the upper 10 inches: 2.9

percent

Minor Dissimilar Components

Tripoli and similar soils

Extent: 5 to 25 percent of the mapped areas

485—Spillville loam, 0 to 2 percent

slopes, occasionally flooded

Component Description

Spillville, occasionally flooded, and similar soils

Extent: 75 to 85 percent of the mapped areas

Geomorphic setting: Flood plains

Slope range: 0 to 2 percent

Depth to restrictive feature: Very deep (more than 60

inches)

Drainage class: Somewhat poorly drained

Parent material: Alluvium

Months in which flooding does not occur: January,

December

Highest frequency of flooding: Occasional (February,

March, April, May, June, July, August, September,

October, November)

Shallowest depth to wet zone: 1 foot (April)

Deepest depth to wet zone: 4 feet (September)

Ponding: None

Available water capacity to a depth of 60 inches: 11.8

inches

Content of organic matter in the upper 10 inches: 4.1

percent

Minor Dissimilar Components

Coland, occasionally flooded, and similar soils

Extent: 0 to 20 percent of the mapped areas

Marshan soils that are 24 to 40 inches to sand and

gravel

Extent: 0 to 15 percent of the mapped areas

585—Spillville-Coland complex, 0 to 2

percent slopes, occasionally flooded

Component Description

Spillville, occasionally flooded, and similar soils

Extent: 40 to 60 percent of the mapped areas

Geomorphic setting: Flood plains

Slope range: 0 to 2 percent

Depth to restrictive feature: Very deep (more than 60

inches)

Drainage class: Somewhat poorly drained

Parent material: Alluvium

Months in which flooding does not occur: January,

December

Highest frequency of flooding: Occasional (February,

March, April, May, June, July, August, September,

October, November)

Shallowest depth to wet zone: 1 foot (April)

Deepest depth to wet zone: 4 feet (September)

Ponding: None

Available water capacity to a depth of 60 inches: 11.8

inches

Content of organic matter in the upper 10 inches: 4.1

percent

Coland, occasionally flooded, and similar soils

Extent: 20 to 40 percent of the mapped areas

Geomorphic setting: Flood plains

Slope range: 0 to 2 percent

Depth to restrictive feature: Very deep (more than 60

inches)

Drainage class: Poorly drained

Parent material: Alluvium

Months in which flooding does not occur: January,

December

Highest frequency of flooding: Occasional (February,

March, April, May, June, July, August, September,

October, November)

Shallowest depth to wet zone: At the surface (April)

Deepest depth to wet zone: 3 feet (September)

Ponding: None

Available water capacity to a depth of 60 inches: 11.4

inches
Black Hawk County, Iowa 29

Content of organic matter in the upper 10 inches: 5.7

percent

Minor Dissimilar Components

Marshan soils that are 24 to 40 inches to sand and

gravel

Extent: 10 to 30 percent of the mapped areas

626—Hayfield loam, 24 to 40 inches to

sand and gravel, 0 to 2 percent slopes

Component Description

Hayfield, 24 to 40 inches to sand and gravel, and

similar soils

Extent: 70 to 90 percent of the mapped areas

Geomorphic setting: Stream terraces

Geomorphic component: Treads

Slope range: 0 to 2 percent

Depth to restrictive feature: Very deep (more than 60

inches)

Drainage class: Somewhat poorly drained

Parent material: Alluvium

Flooding: None

Shallowest depth to wet zone: 1 foot (April)

Deepest depth to wet zone: 4 feet (September)

Ponding: None

Available water capacity to a depth of 60 inches: 7

inches

Content of organic matter in the upper 10 inches: 2.9

percent

Minor Dissimilar Components

Nevin and similar soils

Extent: 0 to 20 percent of the mapped areas

Saude and similar soils

Extent: 0 to 20 percent of the mapped areas

761—Franklin silt loam, 1 to 3 percent

slopes

Component Description

Franklin and similar soils

Extent: 100 percent of the map unit

Geomorphic setting: Hills; uplands

Position on the landform: Summits

Geomorphic component: Interfluves

Slope range: 1 to 3 percent

Depth to restrictive feature: Very deep (more than 60

inches)

Drainage class: Somewhat poorly drained

Parent material: Loess and the underlying glacial till

Flooding: None

Shallowest depth to wet zone: 1 foot (April)

Deepest depth to wet zone: 4 feet (September)

Ponding: None

Available water capacity to a depth of 60 inches: 11.4

inches

Content of organic matter in the upper 10 inches: 2.4

percent

771B—Waubeek silt loam, 2 to 5 percent

slopes

Component Description

Waubeek and similar soils

Extent: 60 to 80 percent of the mapped areas

Geomorphic setting: Uplands; hills

Position on the landform: Summits

Geomorphic component: Interfluves

Slope range: 2 to 5 percent

Depth to restrictive feature: Very deep (more than 60

inches)

Drainage class: Moderately well drained

Parent material: Loess and the underlying glacial till

Flooding: None

Shallowest depth to wet zone: 4 feet (April)

Deepest depth to wet zone: More than 6.7 feet

(September)

Ponding: None

Available water capacity to a depth of 60 inches: 11.5

inches

Content of organic matter in the upper 10 inches: 2.4

percent

Minor Dissimilar Components

Franklin and similar soils

Extent: 10 to 20 percent of the mapped areas

Billett and similar soils

Extent: 0 to 20 percent of the mapped areas

775B—Billett sandy loam, 2 to 5 percent

slopes

Component Description

Billett and similar soils

Extent: 100 percent of the map unit

Geomorphic setting: Hills; uplands

Position on the landform: Summits
30 Soil Survey of

Geomorphic component: Interfluves

Slope range: 2 to 5 percent

Depth to restrictive feature: Very deep (more than 60

inches)

Drainage class: Well drained

Parent material: Eolian sands

Flooding: None

Depth to wet zone: More than 6.7 feet all year

Ponding: None

Available water capacity to a depth of 60 inches: 5.8

inches

Content of organic matter in the upper 10 inches: 1.3

percent

776C—Lilah sandy loam, 2 to 9 percent

slopes

Component Description

Lilah and similar soils

Extent: 50 to 70 percent of the mapped areas

Geomorphic setting: Stream terraces

Geomorphic component: Treads

Slope range: 2 to 9 percent

Depth to restrictive feature: Very deep (more than 60

inches)

Drainage class: Excessively drained

Parent material: Loamy sediments and the underlying

gravels and sands

Flooding: None

Depth to wet zone: More than 6.7 feet all year

Ponding: None

Available water capacity to a depth of 60 inches: 3.1

inches

Content of organic matter in the upper 10 inches: 1

percent

Minor Dissimilar Components

Burkhardt and similar soils

Extent: 10 to 30 percent of the mapped areas

Flagler and similar soils

Extent: 0 to 20 percent of the mapped areas

Dickinson and similar soils

Extent: 0 to 20 percent of the mapped areas

777—Wapsie loam, 1 to 3 percent slopes

Component Description

Wapsie and similar soils

Extent: 70 to 90 percent of the mapped areas

Geomorphic setting: Stream terraces

Geomorphic component: Treads

Slope range: 1 to 3 percent

Depth to restrictive feature: Very deep (more than 60

inches)

Drainage class: Well drained

Parent material: Alluvium

Flooding: None

Depth to wet zone: More than 6.7 feet all year

Ponding: None

Available water capacity to a depth of 60 inches: 6.3

inches

Content of organic matter in the upper 10 inches: 2.9

percent

Minor Dissimilar Components

Sattre and similar soils

Extent: 0 to 20 percent of the mapped areas

Hayfield soils that are 24 to 40 inches to sand and

gravel

Extent: 0 to 20 percent of the mapped areas

781B—Lourdes loam, 2 to 5 percent

slopes

Component Description

Lourdes and similar soils

Extent: 85 to 95 percent of the mapped areas

Geomorphic setting: Uplands; hills

Position on the landform: Summits

Geomorphic component: Interfluves

Slope range: 2 to 5 percent

Depth to restrictive feature: Very deep (more than 60

inches)

Drainage class: Moderately well drained

Parent material: Loamy sediments and the underlying

glacial till

Flooding: None

Shallowest depth to wet zone: 4 feet (April)

Deepest depth to wet zone: More than 6.7 feet

(September)

Ponding: None

Available water capacity to a depth of 60 inches: 9.9

inches

Content of organic matter in the upper 10 inches: 2.9

percent

Minor Dissimilar Components

Riceville and similar soils

Extent: 5 to 15 percent of the mapped areas
Black Hawk County, Iowa 31

781C2—Lourdes loam, 5 to 9 percent

slopes, moderately eroded

Component Description

Lourdes, moderately eroded, and similar soils

Extent: 90 to 100 percent of the mapped areas

Geomorphic setting: Hillsides; uplands

Position on the landform: Backslopes, shoulders

Geomorphic component: Interfluves

Slope range: 5 to 9 percent

Depth to restrictive feature: Very deep (more than 60

inches)

Drainage class: Moderately well drained

Parent material: Loamy sediments and the underlying

glacial till

Flooding: None

Shallowest depth to wet zone: 4 feet (April)

Deepest depth to wet zone: More than 6.7 feet

(September)

Ponding: None

Available water capacity to a depth of 60 inches: 9.8

inches

Content of organic matter in the upper 10 inches: 2.2

percent

Minor Dissimilar Components

Riceville and similar soils

Extent: 0 to 10 percent of the mapped areas

782B—Donnan loam, 2 to 5 percent

slopes

Component Description

Donnan and similar soils

Extent: 70 to 90 percent of the mapped areas

Geomorphic setting: Uplands; hills

Position on the landform: Summits

Geomorphic component: Interfluves

Slope range: 2 to 5 percent

Depth to restrictive feature: More than 60 inches

Drainage class: Somewhat poorly drained

Parent material: Loamy sediments and the underlying

clayey paleosol

Flooding: None

Shallowest depth to wet zone: 1 foot (April)

Deepest depth to wet zone: 4 feet (September)

Ponding: None

Available water capacity to a depth of 60 inches: 10.1

inches

Content of organic matter in the upper 10 inches: 2.5

percent

Minor Dissimilar Components

Bassett and similar soils

Extent: 0 to 20 percent of the mapped areas

Oran and similar soils

Extent: 0 to 20 percent of the mapped areas

798—Protivin loam, 1 to 3 percent slopes

Component Description

Protivin and similar soils

Extent: 75 to 95 percent of the mapped areas

Geomorphic setting: Hills; uplands

Position on the landform: Summits

Geomorphic component: Interfluves

Slope range: 1 to 3 percent

Depth to restrictive feature: More than 60 inches

Drainage class: Somewhat poorly drained

Parent material: Loamy sediments and the underlying

glacial till

Flooding: None

Shallowest depth to wet zone: 1 foot (April)

Deepest depth to wet zone: 4 feet (September)

Ponding: None

Available water capacity to a depth of 60 inches: 10.2

inches

Content of organic matter in the upper 10 inches: 6.4

percent

Minor Dissimilar Components

Readlyn and similar soils

Extent: 0 to 20 percent of the mapped areas

Donnan and similar soils

Extent: 0 to 10 percent of the mapped areas

809B—Bertram fine sandy loam, 2 to 5

percent slopes

Component Description

Bertram and similar soils

Extent: 65 to 85 percent of the mapped areas

Geomorphic setting: Hills; uplands

Position on the landform: Summits

Slope range: 2 to 5 percent

Depth to restrictive feature: 20 to 40 inches to bedrock

(lithic)

Drainage class: Well drained

Parent material: Loamy sediments overlying limestone

bedrock
32 Soil Survey of

Flooding: None

Depth to wet zone: More than 6.7 feet all year

Ponding: None

Available water capacity to a depth of 60 inches: 4.6

inches

Content of organic matter in the upper 10 inches: 2

percent

Minor Dissimilar Components

Atkinson and similar soils

Extent: 0 to 20 percent of the mapped areas

Emeline and similar soils

Extent: 0 to 20 percent of the mapped areas

Dickinson and similar soils

Extent: 0 to 10 percent of the mapped areas

877B—Dinsmore silty clay loam, 2 to 5

percent slopes

Component Description

Dinsmore and similar soils

Extent: 100 percent of the map unit

Geomorphic setting: Uplands; hills

Position on the landform: Summits

Geomorphic component: Interfluves

Slope range: 2 to 5 percent

Depth to restrictive feature: More than 60 inches

Drainage class: Moderately well drained

Parent material: Loess and the underlying glacial till

Flooding: None

Shallowest depth to wet zone: 4 feet (April)

Deepest depth to wet zone: More than 6.7 feet

(September)

Ponding: None

Available water capacity to a depth of 60 inches: 11.7

inches

Content of organic matter in the upper 10 inches: 3.3

percent

884—Klingmore silty clay loam, 1 to 3

percent slopes

Component Description

Klingmore and similar soils

Extent: 100 percent of the map unit

Geomorphic setting: Uplands; hills

Position on the landform: Summits

Geomorphic component: Interfluves

Slope range: 1 to 3 percent

Depth to restrictive feature: Very deep (more than 60

inches)

Drainage class: Somewhat poorly drained

Parent material: Loess and the underlying glacial till

Flooding: None

Shallowest depth to wet zone: 1 foot (April)

Deepest depth to wet zone: 4 feet (September)

Ponding: None

Available water capacity to a depth of 60 inches: 12.1

inches

Content of organic matter in the upper 10 inches: 5.3

percent

911B—Colo-Ely complex, 2 to 5 percent

slopes

Component Description

Colo and similar soils

Extent: 50 to 70 percent of the mapped areas

Geomorphic setting: Drainageways on uplands

Slope range: 2 to 3 percent

Depth to restrictive feature: Very deep (more than 60

inches)

Drainage class: Poorly drained

Parent material: Alluvium

Flooding: None

Shallowest depth to wet zone: At the surface (April)

Deepest depth to wet zone: 3 feet (September)

Ponding: None

Available water capacity to a depth of 60 inches: 12.6

inches

Content of organic matter in the upper 10 inches: 5.7

percent

Ely and similar soils

Extent: 30 to 50 percent of the mapped areas

Geomorphic setting: Uplands; hills

Position on the landform: Footslopes

Geomorphic component: Base slopes

Slope range: 3 to 5 percent

Depth to restrictive feature: Very deep (more than 60

inches)

Drainage class: Somewhat poorly drained

Parent material: Local alluvium

Flooding: None

Shallowest depth to wet zone: 1 foot (April)

Deepest depth to wet zone: 4 feet (September)

Ponding: None

Available water capacity to a depth of 60 inches: 12.3

inches

Content of organic matter in the upper 10 inches: 5

percent
Black Hawk County, Iowa 33

933—Sawmill silty clay loam, 0 to 2

percent slopes, occasionally flooded

Component Description

Sawmill, occasionally flooded, and similar soils

Extent: 80 to 100 percent of the mapped areas

Geomorphic setting: Flood plains

Slope range: 0 to 2 percent

Depth to restrictive feature: Very deep (more than 60

inches)

Drainage class: Poorly drained

Parent material: Alluvium

Months in which flooding does not occur: January,

December

Highest frequency of flooding: Occasional (February,

March, April, May,

June, July, August, September, October, November)

Shallowest depth to wet zone: At the surface (April)

Deepest depth to wet zone: 3 feet (September)

Ponding: None

Available water capacity to a depth of 60 inches: 12.3

inches

Content of organic matter in the upper 10 inches: 6

percent

Minor Dissimilar Components

Nevin and similar soils

Extent: 0 to 20 percent of the mapped areas

982—Maxmore silty clay loam, 0 to 2

percent slopes

Component Description

Maxmore and similar soils

Extent: 100 percent of the map unit

Geomorphic setting: Flats; uplands

Position on the landform: Summits

Geomorphic component: Interfluves

Slope range: 0 to 2 percent

Depth to restrictive feature: Very deep (more than 60

inches)

Drainage class: Poorly drained

Parent material: Loess and the underlying glacial till

Flooding: None

Shallowest depth to wet zone: At the surface (April)

Deepest depth to wet zone: 3 feet (September)

Ponding: None

Available water capacity to a depth of 60 inches: 11.9

inches

Content of organic matter in the upper 10 inches: 6.6

percent

1152—Marshan clay loam, 24 to 40 inches

to sand and gravel, 0 to 2 percent

slopes

Component Description

Marshan, 24 to 40 inches to sand and gravel, and

similar soils

Extent: 65 to 85 percent of the mapped areas

Geomorphic setting: Stream terraces

Geomorphic component: Treads

Slope range: 0 to 2 percent

Depth to restrictive feature: Very deep (more than 60

inches)

Drainage class: Poorly drained

Parent material: Alluvium

Flooding: None

Shallowest depth to wet zone: At the surface (April)

Deepest depth to wet zone: 3 feet (September)

Ponding: None

Available water capacity to a depth of 60 inches: 7

inches

Content of organic matter in the upper 10 inches: 5.5

percent

Minor Dissimilar Components

Coland, occasionally flooded, and similar soils

Extent: 10 to 20 percent of the mapped areas

Lawler soils that are 24 to 40 inches to sand and

gravel

Extent: 5 to 10 percent of the mapped areas

Saude and similar soils

Extent: 0 to 5 percent of the mapped areas

1226—Lawler loam, 24 to 40 inches to

sand and gravel, 0 to 2 percent slopes

Component Description

Lawler, 24 to 40 inches to sand and gravel, and

similar soils

Extent: 65 to 75 percent of the mapped areas

Geomorphic setting: Stream terraces

Geomorphic component: Treads

Slope range: 0 to 2 percent

Depth to restrictive feature: Very deep (more than 60

inches)

Drainage class: Somewhat poorly drained

Parent material: Alluvium

Flooding: None

Shallowest depth to wet zone: 1 foot (April)
34 Soil Survey of

Deepest depth to wet zone: 4 feet (September)

Ponding: None

Available water capacity to a depth of 60 inches: 7.8

inches

Content of organic matter in the upper 10 inches: 4.3

percent

Minor Dissimilar Components

Waukee and similar soils

Extent: 5 to 15 percent of the mapped areas

Marshan, 24 to 40 inches to sand and gravel, and

similar soils

Extent: 0 to 20 percent of the mapped areas

Nevin and similar soils

Extent: 5 to 15 percent of the mapped areas

1285G—Burkhardt-Bassett-Chelsea

complex, 18 to 60 percent slopes

Component Description

Burkhardt and similar soils

Extent: 30 to 50 percent of the mapped areas

Geomorphic setting: Hillsides; uplands

Position on the landform: Backslopes

Slope range: 18 to 60 percent

Depth to restrictive feature: Very deep (more than 60

inches)

Drainage class: Somewhat excessively drained

Parent material: Alluvium and outwash

Flooding: None

Depth to wet zone: More than 6.7 feet all year

Ponding: None

Available water capacity to a depth of 60 inches: 4.1

inches

Content of organic matter in the upper 10 inches: 1.5

percent

Bassett and similar soils

Extent: 25 to 45 percent of the mapped areas

Geomorphic setting: Uplands; hillsides

Position on the landform: Backslopes

Slope range: 18 to 60 percent

Depth to restrictive feature: Very deep (more than 60

inches)

Drainage class: Moderately well drained

Parent material: Loamy sediments and the underlying

glacial till

Flooding: None

Shallowest depth to wet zone: 2 feet (April)

Deepest depth to wet zone: 5 feet (September)

Ponding: None

Available water capacity to a depth of 60 inches: 11.1

inches

Content of organic matter in the upper 10 inches: 1.9

percent

Chelsea and similar soils

Extent: 10 to 30 percent of the mapped areas

Geomorphic setting: Uplands; hillsides

Position on the landform: Backslopes

Slope range: 18 to 60 percent

Depth to restrictive feature: Very deep (more than 60

inches)

Drainage class: Excessively drained

Parent material: Eolian sands

Flooding: None

Depth to wet zone: More than 6.7 feet all year

Ponding: None

Available water capacity to a depth of 60 inches: 4.4

inches

Content of organic matter in the upper 10 inches: 0.6

percent

Minor Dissimilar Components

Emeline and similar soils

Extent: 0 to 10 percent of the mapped areas

1585—Spillville-Coland, channeledAquolls, ponded, complex, 0 to 2

percent slopes, frequently flooded

(fig. 7)

Component Description

Spillville, frequently flooded, and similar soils

Extent: 35 to 45 percent of the mapped areas

Geomorphic setting: Flood plains

Slope range: 0 to 2 percent

Depth to restrictive feature: Very deep (more than 60

inches)

Drainage class: Somewhat poorly drained

Parent material: Alluvium

Months in which flooding does not occur: January,

December

Highest frequency of flooding: Frequent (February,

March, April, May, June, July, August, September,

October, November)

Shallowest depth to wet zone: 1 foot (April)

Deepest depth to wet zone: 4 feet (September)

Ponding: None

Available water capacity to a depth of 60 inches: 11.8

inches
Black Hawk County, Iowa 35

Content of organic matter in the upper 10 inches: 4

percent

Coland, frequently flooded, and similar soils

Extent: 25 to 45 percent of the mapped areas

Geomorphic setting: Flood plains

Slope range: 0 to 2 percent

Depth to restrictive feature: Very deep (more than 60

inches)

Drainage class: Poorly drained

Parent material: Alluvium

Months in which flooding does not occur: January,

December

Highest frequency of flooding: Frequent (February,

March, April, May, June, July, August, September,

October, November)

Shallowest depth to wet zone: At the surface (April)

Deepest depth to wet zone: 3 feet (September)

Ponding: None

Available water capacity to a depth of 60 inches: 11.4

inches

Content of organic matter in the upper 10 inches: 4.5

percent

Aquolls, ponded, and similar soils

Extent: 5 to 25 percent of the mapped areas

Geomorphic setting: Oxbows on flood plains

Slope range: 0 to 1 percent

Depth to restrictive feature: Very deep (more than 60

inches)

Drainage class: Very poorly drained

Flooding: None

Wet zone: At the surface all year

Shallowest ponding: 0.5 foot (August, September,

October)

Deepest ponding: 2 feet (April, May)

Minor Dissimilar Components

Marshan, 24 to 40 inches to sand and gravel, and

similar soils

Extent: 5 to 15 percent of the mapped areas

Figure 7.—An area of Spillville-Coland, channeled-Aquolls, ponded, complex, frequently flooded, along the Cedar River north of

Cedar Falls. Flooding occurs nearly every year in this area, depositing new sediment and slightly changing the appearance of

the flood plain.
36 Soil Survey of

1586—Sigglekov-Fluvaquents, channeledAquents, ponded, complex, 0 to 2

percent slopes, frequently flooded

Component Description

Sigglekov, frequently flooded, and similar soils

Extent: 45 to 65 percent of the mapped areas

Geomorphic setting: Flood plains

Slope range: 0 to 2 percent

Depth to restrictive feature: Very deep (more than 60

inches)

Drainage class: Somewhat poorly drained

Parent material: Alluvium

Months in which flooding does not occur: January,

December

Highest frequency of flooding: Frequent (February,

March, April, May, June, July, August, September,

October, November)

Shallowest depth to wet zone: 1 foot (April)

Deepest depth to wet zone: 4 feet (September)

Ponding: None

Available water capacity to a depth of 60 inches: 2.8

inches

Content of organic matter in the upper 10 inches: 0.9

percent

Fluvaquents, frequently flooded, and similar soils

Extent: 20 to 40 percent of the mapped areas

Geomorphic setting: Flood plains

Slope range: 0 to 2 percent

Depth to restrictive feature: Very deep (more than 60

inches)

Drainage class: Very poorly drained

Parent material: Alluvium

Months in which flooding does not occur: January,

December

Highest frequency of flooding: Frequent (February,

March, April, May, June, July, August, September,

October, November)

Shallowest depth to wet zone: At the surface (April)

Deepest depth to wet zone: 3 feet (September)

Ponding: None

Aquents, ponded, and similar soils

Extent: 5 to 25 percent of the mapped areas

Geomorphic setting: Oxbows on flood plains

Slope range: 0 to 1 percent

Depth to restrictive feature: Very deep (more than 60

inches)

Drainage class: Very poorly drained

Flooding: None

Wet zone: At the surface all year

Shallowest ponding: 0.5 foot (August, September,

October)

Deepest ponding: 2 feet (April, May)

4000—Urban land

• This map unit consists of areas that are covered by

buildings, roads, streets, parking lots, mobile home

parks, and other structures. The original soils can no

longer be identified.

4007—Wiota-Urban land complex, 0 to 2

percent slopes

Component Description

Wiota and similar soils

Extent: 30 to 50 percent of the mapped areas

Geomorphic setting: Stream terraces

Geomorphic component: Treads

Slope range: 0 to 2 percent

Depth to restrictive feature: Very deep (more than 60

inches)

Drainage class: Well drained

Parent material: Alluvium

Flooding: None

Depth to wet zone: More than 6.7 feet all year

Ponding: None

Available water capacity to a depth of 60 inches: 11.4

inches

Content of organic matter in the upper 10 inches: 3.6

percent

Urban land

General description: This component consists of areas

that are covered by buildings, roads, streets,

parking lots, mobile home parks, and other

structures. The original soils can no longer be

identified.

Extent: 30 to 50 percent of the mapped areas

Minor Dissimilar Components

Nevin and similar soils

Extent: 0 to 20 percent of the mapped areas

Waukee and similar soils

Extent: 0 to 20 percent of the mapped areas
Black Hawk County, Iowa 37

4041—Sparta-Urban land complex, 0 to 2

percent slopes

Component Description

Sparta and similar soils

Extent: 35 to 55 percent of the mapped areas

Geomorphic setting: Stream terraces

Geomorphic component: Treads

Slope range: 0 to 2 percent

Depth to restrictive feature: Very deep (more than 60

inches)

Drainage class: Excessively drained

Parent material: Eolian sands

Flooding: None

Depth to wet zone: More than 6.7 feet all year

Ponding: None

Available water capacity to a depth of 60 inches: 4.7

inches

Content of organic matter in the upper 10 inches: 1.5

percent

Urban land

General description: This component consists of areas

that are covered by buildings, roads, streets,

parking lots, mobile home parks, and other

structures. The original soils can no longer be

identified.

Extent: 35 to 55 percent of the mapped areas

Minor Dissimilar Components

Watseka and similar soils

Extent: 0 to 20 percent of the mapped areas

4041B—Sparta-Urban land complex, 2 to

5 percent slopes

Component Description

Sparta and similar soils

Extent: 40 to 60 percent of the mapped areas

Geomorphic setting: Uplands; stream terraces

Position on the landform: Summits

Slope range: 2 to 5 percent

Depth to restrictive feature: Very deep (more than 60

inches)

Drainage class: Excessively drained

Parent material: Eolian sands

Flooding: None

Depth to wet zone: More than 6.7 feet all year

Ponding: None

Available water capacity to a depth of 60 inches: 4.7

inches

Content of organic matter in the upper 10 inches: 1.5

percent

Urban land

General description: This component consists of areas

that are covered by buildings, roads, streets,

parking lots, mobile home parks, and other

structures. The original soils can no longer be

identified.

Extent: 40 to 60 percent of the mapped areas

4041C—Sparta-Urban land complex, 5 to

9 percent slopes

Component Description

Sparta and similar soils

Extent: 40 to 60 percent of the mapped areas

Geomorphic setting: Hillsides; uplands

Position on the landform: Shoulders, backslopes

Geomorphic component: Interfluves

Slope range: 5 to 9 percent

Depth to restrictive feature: Very deep (more than 60

inches)

Drainage class: Excessively drained

Parent material: Eolian sands

Flooding: None

Depth to wet zone: More than 6.7 feet all year

Ponding: None

Available water capacity to a depth of 60 inches: 4.7

inches

Content of organic matter in the upper 10 inches: 1.4

percent

Urban land

General description: This component consists of areas

that are covered by buildings, roads, streets,

parking lots, mobile home parks, and other

structures. The original soils can no longer be

identified.

Extent: 40 to 60 percent of the mapped areas

4041D—Sparta-Urban land complex, 9 to

14 percent slopes

Component Description

Sparta and similar soils

Extent: 40 to 60 percent of the mapped areas
38 Soil Survey of

Geomorphic setting: Hillsides; uplands

Position on the landform: Backslopes

Geomorphic component: Side slopes

Slope range: 9 to 14 percent

Depth to restrictive feature: Very deep (more than 60

inches)

Drainage class: Excessively drained

Parent material: Eolian sands

Flooding: None

Depth to wet zone: More than 6.7 feet all year

Ponding: None

Available water capacity to a depth of 60 inches: 4.6

inches

Content of organic matter in the upper 10 inches: 1.4

percent

Urban land

General description: This component consists of areas

that are covered by buildings, roads, streets,

parking lots, mobile home parks, and other

structures. The original soils can no longer be

identified.

Extent: 40 to 60 percent of the mapped areas

4063B—Chelsea-Urban land complex, 2 to

5 percent slopes

Component Description

Chelsea and similar soils

Extent: 35 to 55 percent of the mapped areas

Geomorphic setting: Stream terraces; uplands

Position on the landform: Summits

Slope range: 2 to 5 percent

Depth to restrictive feature: Very deep (more than 60

inches)

Drainage class: Excessively drained

Parent material: Eolian sands

Flooding: None

Depth to wet zone: More than 6.7 feet all year

Ponding: None

Available water capacity to a depth of 60 inches: 4.7

inches

Content of organic matter in the upper 10 inches: 0.9

percent

Urban land

General description: This component consists of areas

that are covered by buildings, roads, streets,

parking lots, mobile home parks, and other

structures. The original soils can no longer be

identified.

Extent: 35 to 55 percent of the mapped areas

Minor Dissimilar Components

Billett and similar soils

Extent: 5 to 15 percent of the mapped areas

4063C—Chelsea-Urban land complex, 5 to

9 percent slopes

Component Description

Chelsea and similar soils

Extent: 35 to 55 percent of the mapped areas

Geomorphic setting: Uplands; hillsides

Position on the landform: Shoulders, backslopes

Geomorphic component: Interfluves

Slope range: 5 to 9 percent

Depth to restrictive feature: Very deep (more than 60

inches)

Drainage class: Excessively drained

Parent material: Eolian sands

Flooding: None

Depth to wet zone: More than 6.7 feet all year

Ponding: None

Available water capacity to a depth of 60 inches: 4.7

inches

Content of organic matter in the upper 10 inches: 0.9

percent

Urban land

General description: This component consists of areas

that are covered by buildings, roads, streets,

parking lots, mobile home parks, and other

structures. The original soils can no longer be

identified.

Extent: 30 to 50 percent of the mapped areas

Minor Dissimilar Components

Billett and similar soils

Extent: 10 to 20 percent of the mapped areas

4063D—Chelsea-Urban land complex, 9 to

14 percent slopes

Component Description

Chelsea and similar soils

Extent: 35 to 55 percent of the mapped areas

Geomorphic setting: Uplands; hillsides

Position on the landform: Backslopes

Geomorphic component: Side slopes

Slope range: 9 to 14 percent
Black Hawk County, Iowa 39

Depth to restrictive feature: Very deep (more than 60

inches)

Drainage class: Excessively drained

Parent material: Eolian sands

Flooding: None

Depth to wet zone: More than 6.7 feet all year

Ponding: None

Available water capacity to a depth of 60 inches: 4.7

inches

Content of organic matter in the upper 10 inches: 0.9

percent

Urban land

General description: This component consists of areas

that are covered by buildings, roads, streets,

parking lots, mobile home parks, and other

structures. The original soils can no longer be

identified.

Extent: 35 to 55 percent of the mapped areas

Minor Dissimilar Components

Billett and similar soils

Extent: 5 to 15 percent of the mapped areas

4083B—Kenyon-Urban land complex, 2 to

5 percent slopes

Component Description

Kenyon and similar soils

Extent: 35 to 55 percent of the mapped areas

Geomorphic setting: Uplands; hills

Position on the landform: Summits

Geomorphic component: Interfluves

Slope range: 2 to 5 percent

Depth to restrictive feature: More than 60 inches

Drainage class: Moderately well drained

Parent material: Loamy sediments and the underlying

glacial till

Flooding: None

Shallowest depth to wet zone: 4 feet (April)

Deepest depth to wet zone: More than 6.7 feet

(September)

Ponding: None

Available water capacity to a depth of 60 inches: 11.3

inches

Content of organic matter in the upper 10 inches: 3.3

percent

Urban land

General description: This component consists of areas

that are covered by buildings, roads, streets,

parking lots, mobile home parks, and other

structures. The original soils can no longer be

identified.

Extent: 35 to 55 percent of the mapped areas

Minor Dissimilar Components

Aredale and similar soils

Extent: 0 to 20 percent of the mapped areas

4083C—Kenyon-Urban land complex, 5 to

9 percent slopes

Component Description

Kenyon and similar soils

Extent: 35 to 55 percent of the mapped areas

Geomorphic setting: Uplands; hillsides

Position on the landform: Backslopes, shoulders

Geomorphic component: Interfluves

Slope range: 5 to 9 percent

Depth to restrictive feature: More than 60 inches

Drainage class: Moderately well drained

Parent material: Loamy sediments and the underlying

glacial till

Flooding: None

Shallowest depth to wet zone: 4 feet (April)

Deepest depth to wet zone: More than 6.7 feet

(September)

Ponding: None

Available water capacity to a depth of 60 inches: 11.3

inches

Content of organic matter in the upper 10 inches: 3.3

percent

Urban land

General description: This component consists of areas

that are covered by buildings, roads, streets,

parking lots, mobile home parks, and other

structures. The original soils can no longer be

identified.

Extent: 35 to 55 percent of the mapped areas

Minor Dissimilar Components

Aredale and similar soils

Extent: 0 to 20 percent of the mapped areas

4083D—Kenyon-Urban land complex, 9 to

14 percent slopes

Component Description

Kenyon and similar soils

Extent: 35 to 55 percent of the mapped areas
40 Soil Survey of

Geomorphic setting: Uplands; hillsides

Position on the landform: Backslopes, shoulders

Geomorphic component: Side slopes

Slope range: 9 to 14 percent

Depth to restrictive feature: Very deep (more than 60

inches)

Drainage class: Moderately well drained

Parent material: Loamy sediments and the underlying

glacial till

Flooding: None

Shallowest depth to wet zone: 4 feet (April)

Deepest depth to wet zone: More than 6.7 feet

(September)

Ponding: None

Available water capacity to a depth of 60 inches: 11.3

inches

Content of organic matter in the upper 10 inches: 3.3

percent

Urban land

General description: This component consists of areas

that are covered by buildings, roads, streets,

parking lots, mobile home parks, and other

structures. The original soils can no longer be

identified.

Extent: 35 to 55 percent of the mapped areas

Minor Dissimilar Components

Aredale and similar soils

Extent: 0 to 20 percent of the mapped areas

4084—Clyde-Urban land complex, 0 to 3

percent slopes

Component Description

Clyde and similar soils

Extent: 35 to 55 percent of the mapped areas

Geomorphic setting: Drainageways on uplands

Slope range: 0 to 3 percent

Depth to restrictive feature: Very deep (more than 60

inches)

Drainage class: Poorly drained

Parent material: Loamy sediments and the underlying

glacial till

Flooding: None

Shallowest depth to wet zone: At the surface (April)

Deepest depth to wet zone: 3 feet (September)

Ponding: None

Available water capacity to a depth of 60 inches: 11.7

inches

Content of organic matter in the upper 10 inches: 7

percent

Urban land

General description: This component consists of areas

that are covered by buildings, roads, streets,

parking lots, mobile home parks, and other

structures. The original soils can no longer be

identified.

Extent: 30 to 50 percent of the mapped areas

Minor Dissimilar Components

Floyd and similar soils

Extent: 5 to 25 percent of the mapped areas

4088—Nevin-Urban land complex, 0 to 2

percent slopes

Component Description

Nevin and similar soils

Extent: 25 to 45 percent of the mapped areas

Geomorphic setting: Stream terraces

Geomorphic component: Treads

Slope range: 0 to 2 percent

Depth to restrictive feature: More than 60 inches

Drainage class: Somewhat poorly drained

Parent material: Alluvium

Months in which flooding does not occur: January,

February, December

Highest frequency of flooding: Rare (March, April, May,

June, July, August, September, October,

November)

Shallowest depth to wet zone: 1 foot (April)

Deepest depth to wet zone: 4 feet (September)

Ponding: None

Available water capacity to a depth of 60 inches: 12.1

inches

Content of organic matter in the upper 10 inches: 4.6

percent

Urban land

General description: This component consists of areas

that are covered by buildings, roads, streets,

parking lots, mobile home parks, and other

structures. The original soils can no longer be

identified.

Extent: 25 to 45 percent of the mapped areas

Minor Dissimilar Components

Wiota and similar soils

Extent: 10 to 30 percent of the mapped areas

Colo, occasionally flooded, and similar soils

Extent: 0 to 20 percent of the mapped areas
Black Hawk County, Iowa 41

4133—Colo, occasionally flooded-Urban

land complex, 0 to 2 percent slopes

Component Description

Colo, occasionally flooded, and similar soils

Extent: 40 to 60 percent of the mapped areas

Geomorphic setting: Flood plains

Slope range: 0 to 2 percent

Depth to restrictive feature: Very deep (more than 60

inches)

Drainage class: Poorly drained

Parent material: Alluvium

Months in which flooding does not occur: January,

December

Highest frequency of flooding: Occasional (February,

March, April, May, June, July, August, September,

October, November)

Shallowest depth to wet zone: At the surface (April)

Deepest depth to wet zone: 3 feet (September)

Ponding: None

Available water capacity to a depth of 60 inches: 12.6

inches

Content of organic matter in the upper 10 inches: 5.7

percent

Urban land

General description: This component consists of areas

that are covered by buildings, roads, streets,

parking lots, mobile home parks, and other

structures. The original soils can no longer be

identified.

Extent: 40 to 60 percent of the mapped areas

4135—Coland, occasionally floodedUrban land complex, 0 to 2 percent

slopes

Component Description

Coland, occasionally flooded, and similar soils

Extent: 40 to 60 percent of the mapped areas

Geomorphic setting: Flood plains

Slope range: 0 to 2 percent

Depth to restrictive feature: More than 60 inches

Drainage class: Poorly drained

Parent material: Alluvium

Months in which flooding does not occur: January,

December

Highest frequency of flooding: Occasional (February,

March, April, May, June, July, August, September,

October, November)

Shallowest depth to wet zone: At the surface (April)

Deepest depth to wet zone: 3 feet (September)

Ponding: None

Available water capacity to a depth of 60 inches: 11.4

inches

Content of organic matter in the upper 10 inches: 5.7

percent

Urban land

General description: This component consists of areas

that are covered by buildings, roads, streets,

parking lots, mobile home parks, and other

structures. The original soils can no longer be

identified.

Extent: 40 to 60 percent of the mapped areas

4152—Marshan-Urban land complex, 0 to

2 percent slopes

Component Description

Marshan, 24 to 40 inches to sand and gravel, and

similar soils

Extent: 30 to 50 percent of the mapped areas

Geomorphic setting: Stream terraces

Geomorphic component: Treads

Slope range: 0 to 2 percent

Depth to restrictive feature: Very deep (more than 60

inches)

Drainage class: Poorly drained

Parent material: Alluvium

Flooding: None

Shallowest depth to wet zone: At the surface (April)

Deepest depth to wet zone: 3 feet (September)

Ponding: None

Available water capacity to a depth of 60 inches: 7

inches

Content of organic matter in the upper 10 inches: 5.5

percent

Urban land

General description: This component consists of areas

that are covered by buildings, roads, streets,

parking lots, mobile home parks, and other

structures. The original soils can no longer be

identified.

Extent: 25 to 45 percent of the mapped areas

Minor Dissimilar Components

Coland, occasionally flooded, and similar soils

Extent: 10 to 20 percent of the mapped areas
42 Soil Survey of

Lawler soils that are 24 to 40 inches to sand and

gravel

Extent: 5 to 10 percent of the mapped areas

Saude and similar soils

Extent: 0 to 5 percent of the mapped areas

4159—Finchford-Urban land complex, 0 to

2 percent slopes

Component Description

Finchford and similar soils

Extent: 35 to 55 percent of the mapped areas

Geomorphic setting: Stream terraces

Geomorphic component: Treads

Slope range: 0 to 2 percent

Depth to restrictive feature: Very deep (more than 60

inches)

Drainage class: Excessively drained

Parent material: Alluvium

Flooding: None

Depth to wet zone: More than 6.7 feet all year

Ponding: None

Available water capacity to a depth of 60 inches: 3.5

inches

Content of organic matter in the upper 10 inches: 1.3

percent

Urban land

General description: This component consists of areas

that are covered by buildings, roads, streets,

parking lots, mobile home parks, and other

structures. The original soils can no longer be

identified.

Extent: 35 to 55 percent of the mapped areas

Minor Dissimilar Components

Flagler and similar soils

Extent: 0 to 20 percent of the mapped areas

4159C—Finchford-Urban land complex, 2

to 9 percent slopes

Component Description

Finchford and similar soils

Extent: 40 to 60 percent of the mapped areas

Geomorphic setting: Stream terraces

Geomorphic component: Risers

Slope range: 2 to 9 percent

Depth to restrictive feature: Very deep (more than 60

inches)

Drainage class: Excessively drained

Parent material: Alluvium

Flooding: None

Depth to wet zone: More than 6.7 feet all year

Ponding: None

Available water capacity to a depth of 60 inches: 3.2

inches

Content of organic matter in the upper 10 inches: 1.3

percent

Urban land

General description: This component consists of areas

that are covered by buildings, roads, streets,

parking lots, mobile home parks, and other

structures. The original soils can no longer be

identified.

Extent: 40 to 60 percent of the mapped areas

4171B—Bassett-Urban land complex, 2 to

5 percent slopes

Component Description

Bassett and similar soils

Extent: 35 to 55 percent of the mapped areas

Geomorphic setting: Hills; uplands

Position on the landform: Summits

Geomorphic component: Interfluves

Slope range: 2 to 5 percent

Depth to restrictive feature: Very deep (more than 60

inches)

Drainage class: Moderately well drained

Parent material: Loamy sediments and the underlying

glacial till

Flooding: None

Shallowest depth to wet zone: 2 feet (April)

Deepest depth to wet zone: 5 feet (September)

Ponding: None

Available water capacity to a depth of 60 inches: 11.1

inches

Content of organic matter in the upper 10 inches: 2.5

percent

Urban land

General description: This component consists of areas

that are covered by buildings, roads, streets,

parking lots, mobile home parks, and other

structures. The original soils can no longer be

identified.

Extent: 35 to 55 percent of the mapped areas
Black Hawk County, Iowa 43

Minor Dissimilar Components

Kenyon and similar soils

Extent: 0 to 20 percent of the mapped areas

4171D—Bassett-Urban land complex, 5 to

14 percent slopes

Component Description

Bassett and similar soils

Extent: 40 to 60 percent of the mapped areas

Geomorphic setting: Hillsides; uplands

Position on the landform: Summits

Geomorphic component: Side slopes

Slope range: 5 to 14 percent

Depth to restrictive feature: Very deep (more than 60

inches)

Drainage class: Moderately well drained

Parent material: Loamy sediments and the underlying

glacial till

Flooding: None

Shallowest depth to wet zone: 2 feet (April)

Deepest depth to wet zone: 5 feet (September)

Ponding: None

Available water capacity to a depth of 60 inches: 11.1

inches

Content of organic matter in the upper 10 inches: 2.5

percent

Urban land

General description: This component consists of areas

that are covered by buildings, roads, streets,

parking lots, mobile home parks, and other

structures. The original soils can no longer be

identified.

Extent: 35 to 55 percent of the mapped areas

Minor Dissimilar Components

Kenyon and similar soils

Extent: 0 to 10 percent of the mapped areas

4175—Dickinson-Urban land complex, 0

to 2 percent slopes

Component Description

Dickinson and similar soils

Extent: 30 to 50 percent of the mapped areas

Geomorphic setting: Stream terraces

Geomorphic component: Treads

Slope range: 0 to 2 percent

Depth to restrictive feature: Very deep (more than 60

inches)

Drainage class: Well drained

Parent material: Eolian sands

Flooding: None

Depth to wet zone: More than 6.7 feet all year

Ponding: None

Available water capacity to a depth of 60 inches: 5.4

inches

Content of organic matter in the upper 10 inches: 2.4

percent

Urban land

General description: This component consists of areas

that are covered by buildings, roads, streets,

parking lots, mobile home parks, and other

structures. The original soils can no longer be

identified.

Extent: 30 to 50 percent of the mapped areas

Minor Dissimilar Components

Sparta and similar soils

Extent: 0 to 20 percent of the mapped areas

Finchford and similar soils

Extent: 0 to 20 percent of the mapped areas

4175B—Dickinson-Urban land complex, 2

to 5 percent slopes

Component Description

Dickinson and similar soils

Extent: 35 to 55 percent of the mapped areas

Geomorphic setting: Stream terraces; uplands

Position on the landform: Summits

Slope range: 2 to 5 percent

Depth to restrictive feature: Very deep (more than 60

inches)

Drainage class: Well drained

Parent material: Eolian sands

Flooding: None

Depth to wet zone: More than 6.7 feet all year

Ponding: None

Available water capacity to a depth of 60 inches: 5.4

inches

Content of organic matter in the upper 10 inches: 2

percent

Urban land

General description: This component consists of areas

that are covered by buildings, roads, streets,

parking lots, mobile home parks, and other
44 Soil Survey of

structures. The original soils can no longer be

identified.

Extent: 35 to 55 percent of the mapped areas

Minor Dissimilar Components

Sparta and similar soils

Extent: 0 to 20 percent of the mapped areas

4177—Saude-Urban land complex, 0 to 2

percent slopes

Component Description

Saude and similar soils

Extent: 35 to 55 percent of the mapped areas

Geomorphic setting: Stream terraces

Geomorphic component: Treads

Slope range: 0 to 2 percent

Depth to restrictive feature: Very deep (more than 60

inches)

Drainage class: Well drained

Parent material: Alluvium

Flooding: None

Depth to wet zone: More than 6.7 feet all year

Ponding: None

Available water capacity to a depth of 60 inches: 6.5

inches

Content of organic matter in the upper 10 inches: 3.4

percent

Urban land

General description: This component consists of areas

that are covered by buildings, roads, streets,

parking lots, mobile home parks, and other

structures. The original soils can no longer be

identified.

Extent: 35 to 55 percent of the mapped areas

Minor Dissimilar Components

Lawler soils that are 24 to 40 inches to sand and

gravel

Extent: 0 to 20 percent of the mapped areas

4177B—Saude-Urban land complex, 2 to 5

percent slopes

Component Description

Saude and similar soils

Extent: 35 to 55 percent of the mapped areas

Geomorphic setting: Stream terraces

Geomorphic component: Treads

Slope range: 2 to 5 percent

Depth to restrictive feature: Very deep (more than 60

inches)

Drainage class: Well drained

Parent material: Alluvium

Flooding: None

Depth to wet zone: More than 6.7 feet all year

Ponding: None

Available water capacity to a depth of 60 inches: 6.5

inches

Content of organic matter in the upper 10 inches: 3.4

percent

Urban land

General description: This component consists of areas

that are covered by buildings, roads, streets,

parking lots, mobile home parks, and other

structures. The original soils can no longer be

identified.

Extent: 35 to 55 percent of the mapped areas

Minor Dissimilar Components

Finchford and similar soils

Extent: 0 to 20 percent of the mapped areas

4178—Waukee-Urban land complex, 0 to 2

percent slopes

Component Description

Waukee and similar soils

Extent: 30 to 50 percent of the mapped areas

Geomorphic setting: Stream terraces

Geomorphic component: Treads

Slope range: 0 to 2 percent

Depth to restrictive feature: Very deep (more than 60

inches)

Drainage class: Well drained

Parent material: Alluvium

Flooding: None

Depth to wet zone: More than 6.7 feet all year

Ponding: None

Available water capacity to a depth of 60 inches: 7.6

inches

Content of organic matter in the upper 10 inches: 3.3

percent

Urban land

General description: This component consists of areas

that are covered by buildings, roads, streets,

parking lots, mobile home parks, and other

structures. The original soils can no longer be

identified.
Black Hawk County, Iowa 45

Extent: 30 to 50 percent of the mapped areas

Minor Dissimilar Components

Wiota and similar soils

Extent: 0 to 20 percent of the mapped areas

Saude and similar soils

Extent: 0 to 20 percent of the mapped areas

4184—Klinger-Urban land complex, 1 to 3

percent slopes

Component Description

Klinger and similar soils

Extent: 40 to 60 percent of the mapped areas

Geomorphic setting: Uplands; hills

Position on the landform: Summits

Geomorphic component: Interfluves

Slope range: 1 to 3 percent

Depth to restrictive feature: Very deep (more than 60

inches)

Drainage class: Somewhat poorly drained

Parent material: Loess and the underlying glacial till

Flooding: None

Shallowest depth to wet zone: 1 foot (April)

Deepest depth to wet zone: 4 feet (September)

Ponding: None

Available water capacity to a depth of 60 inches: 11.8

inches

Content of organic matter in the upper 10 inches: 5.4

percent

Urban land

General description: This component consists of areas

that are covered by buildings, roads, streets,

parking lots, mobile home parks, and other

structures. The original soils can no longer be

identified.

Extent: 40 to 60 percent of the mapped areas

4198B—Floyd-Urban land complex, 1 to 4

percent slopes

Component Description

Floyd and similar soils

Extent: 35 to 55 percent of the mapped areas

Geomorphic setting: Hills; uplands

Position on the landform: Footslopes

Geomorphic component: Base slopes

Slope range: 1 to 4 percent

Depth to restrictive feature: Very deep (more than 60

inches)

Drainage class: Somewhat poorly drained

Parent material: Loamy sediments and the underlying

glacial till

Flooding: None

Shallowest depth to wet zone: 1 foot (April)

Deepest depth to wet zone: 4 feet (September)

Ponding: None

Available water capacity to a depth of 60 inches: 10.7

inches

Content of organic matter in the upper 10 inches: 5.2

percent

Urban land

General description: This component consists of areas

that are covered by buildings, roads, streets,

parking lots, mobile home parks, and other

structures. The original soils can no longer be

identified.

Extent: 35 to 55 percent of the mapped areas

Minor Dissimilar Components

Clyde and similar soils

Extent: 0 to 20 percent of the mapped areas

4226—Lawler-Urban land complex, 0 to 2

percent slopes

Component Description

Lawler, 24 to 40 inches to sand and gravel, and

similar soils

Extent: 25 to 45 percent of the mapped areas

Geomorphic setting: Stream terraces

Geomorphic component: Treads

Slope range: 0 to 2 percent

Depth to restrictive feature: Very deep (more than 60

inches)

Drainage class: Somewhat poorly drained

Parent material: Alluvium

Flooding: None

Shallowest depth to wet zone: 1 foot (April)

Deepest depth to wet zone: 4 feet (September)

Ponding: None

Available water capacity to a depth of 60 inches: 7.8

inches

Content of organic matter in the upper 10 inches: 4.3

percent

Urban land

General description: This component consists of areas

that are covered by buildings, roads, streets,
46 Soil Survey of

parking lots, mobile home parks, and other

structures. The original soils can no longer be

identified.

Extent: 25 to 45 percent of the mapped areas

Minor Dissimilar Components

Waukee and similar soils

Extent: 5 to 15 percent of the mapped areas

Marshan soils that are 24 to 40 inches to sand and

gravel

Extent: 0 to 20 percent of the mapped areas

Nevin and similar soils

Extent: 5 to 15 percent of the mapped areas

4284—Flagler-Urban land complex, 0 to 2

percent slopes

Component Description

Flagler and similar soils

Extent: 30 to 50 percent of the mapped areas

Geomorphic setting: Stream terraces

Geomorphic component: Treads

Slope range: 0 to 2 percent

Depth to restrictive feature: Very deep (more than 60

inches)

Drainage class: Somewhat excessively drained

Parent material: Alluvium

Flooding: None

Depth to wet zone: More than 6.7 feet all year

Ponding: None

Available water capacity to a depth of 60 inches: 5

inches

Content of organic matter in the upper 10 inches: 1.9

percent

Urban land

General description: This component consists of areas

that are covered by buildings, roads, streets,

parking lots, mobile home parks, and other

structures. The original soils can no longer be

identified.

Extent: 30 to 50 percent of the mapped areas

Minor Dissimilar Components

Saude and similar soils

Extent: 0 to 20 percent of the mapped areas

Finchford and similar soils

Extent: 0 to 20 percent of the mapped areas

4284B—Flagler-Urban land complex, 2 to

5 percent slopes

Component Description

Flagler and similar soils

Extent: 35 to 55 percent of the mapped areas

Geomorphic setting: Stream terraces

Geomorphic component: Treads

Slope range: 2 to 5 percent

Depth to restrictive feature: Very deep (more than 60

inches)

Drainage class: Somewhat excessively drained

Parent material: Alluvium

Flooding: None

Depth to wet zone: More than 6.7 feet all year

Ponding: None

Available water capacity to a depth of 60 inches: 5

inches

Content of organic matter in the upper 10 inches: 1.9

percent

Urban land

General description: This component consists of areas

that are covered by buildings, roads, streets,

parking lots, mobile home parks, and other

structures. The original soils can no longer be

identified.

Extent: 35 to 55 percent of the mapped areas

Minor Dissimilar Components

Finchford and similar soils

Extent: 0 to 20 percent of the mapped areas

4377B—Dinsdale-Urban land complex, 2

to 5 percent slopes

Component Description

Dinsdale and similar soils

Extent: 40 to 60 percent of the mapped areas

Geomorphic setting: Hills; uplands

Position on the landform: Summits

Geomorphic component: Interfluves

Slope range: 2 to 5 percent

Depth to restrictive feature: Very deep (more than 60

inches)

Drainage class: Moderately well drained

Parent material: Loess and the underlying glacial till

Flooding: None

Shallowest depth to wet zone: 4 feet (April)

Deepest depth to wet zone: More than 6.7 feet

(September)
Black Hawk County, Iowa 47

Ponding: None

Available water capacity to a depth of 60 inches: 11.6

inches

Content of organic matter in the upper 10 inches: 3.2

percent

Urban land

General description: This component consists of areas

that are covered by buildings, roads, streets,

parking lots, mobile home parks, and other

structures. The original soils can no longer be

identified.

Extent: 40 to 60 percent of the mapped areas

4377C—Dinsdale-Urban land complex, 5

to 9 percent slopes

Component Description

Dinsdale and similar soils

Extent: 40 to 60 percent of the mapped areas

Geomorphic setting: Hillsides; uplands

Position on the landform: Shoulders, backslopes

Geomorphic component: Interfluves

Slope range: 5 to 9 percent

Depth to restrictive feature: More than 60 inches

Drainage class: Moderately well drained

Parent material: Loess and the underlying glacial till

Flooding: None

Shallowest depth to wet zone: 4 feet (April)

Deepest depth to wet zone: More than 6.7 feet

(September)

Ponding: None

Available water capacity to a depth of 60 inches: 11.6

inches

Content of organic matter in the upper 10 inches: 3.2

percent

Urban land

General description: This component consists of areas

that are covered by buildings, roads, streets,

parking lots, mobile home parks, and other

structures. The original soils can no longer be

identified.

Extent: 40 to 60 percent of the mapped areas

4382—Maxfield-Urban land complex, 0 to

2 percent slopes

Component Description

Maxfield and similar soils

Extent: 40 to 60 percent of the mapped areas

Geomorphic setting: Flats on uplands

Position on the landform: Summits

Slope range: 0 to 2 percent

Depth to restrictive feature: Very deep (more than 60

inches)

Drainage class: Poorly drained

Parent material: Loess and the underlying glacial till

Flooding: None

Shallowest depth to wet zone: At the surface (April)

Deepest depth to wet zone: 3 feet (September)

Ponding: None

Available water capacity to a depth of 60 inches: 11.6

inches

Content of organic matter in the upper 10 inches: 6.4

percent

Urban land

General description: This component consists of areas

that are covered by buildings, roads, streets,

parking lots, mobile home parks, and other

structures. The original soils can no longer be

identified.

Extent: 40 to 60 percent of the mapped areas

4391B—Clyde-Floyd-Urban land complex,

1 to 4 percent slopes

Component Description

Clyde and similar soils

Extent: 30 to 40 percent of the mapped areas

Geomorphic setting: Drainageways on uplands

Slope range: 1 to 3 percent

Depth to restrictive feature: Very deep (more than 60

inches)

Drainage class: Poorly drained

Parent material: Loamy sediments and the underlying

glacial till

Flooding: None

Shallowest depth to wet zone: At the surface (April)

Deepest depth to wet zone: 3 feet (September)

Ponding: None

Available water capacity to a depth of 60 inches: 11.7

inches

Content of organic matter in the upper 10 inches: 7

percent

Floyd and similar soils

Extent: 30 to 40 percent of the mapped areas

Geomorphic setting: Hills on uplands

Slope range: 1 to 4 percent

Depth to restrictive feature: Very deep (more than 60

inches)
48 Soil Survey of

Drainage class: Somewhat poorly drained

Parent material: Loamy sediments and the underlying

glacial till

Flooding: None

Shallowest depth to wet zone: 1 foot (April)

Deepest depth to wet zone: 4 feet (September)

Ponding: None

Available water capacity to a depth of 60 inches: 10.7

inches

Content of organic matter in the upper 10 inches: 5.2

percent

Urban land

General description: This component consists of areas

that are covered by buildings, roads, streets,

parking lots, mobile home parks, and other

structures. The original soils can no longer be

identified.

Extent: 20 to 40 percent of the mapped areas

4398—Tripoli-Urban land complex, 0 to 2

percent slopes

Component Description

Tripoli and similar soils

Extent: 35 to 55 percent of the mapped areas

Geomorphic setting: Flats on uplands

Position on the landform: Summits

Slope range: 0 to 2 percent

Depth to restrictive feature: Very deep (more than 60

inches)

Drainage class: Poorly drained

Parent material: Loamy sediments and the underlying

glacial till

Flooding: None

Shallowest depth to wet zone: At the surface (April)

Deepest depth to wet zone: 3 feet (September)

Ponding: None

Available water capacity to a depth of 60 inches: 11.1

inches

Content of organic matter in the upper 10 inches: 6.4

percent

Urban land

General description: This component consists of areas

that are covered by buildings, roads, streets,

parking lots, mobile home parks, and other

structures. The original soils can no longer be

identified.

Extent: 35 to 55 percent of the mapped areas

Minor Dissimilar Components

Readlyn and similar soils

Extent: 0 to 20 percent of the mapped areas

4399—Readlyn-Urban land complex, 1 to

3 percent slopes

Component Description

Readlyn and similar soils

Extent: 35 to 55 percent of the mapped areas

Geomorphic setting: Hills; uplands

Position on the landform: Summits

Geomorphic component: Interfluves

Slope range: 1 to 3 percent

Depth to restrictive feature: Very deep (more than 60

inches)

Drainage class: Somewhat poorly drained

Parent material: Loamy sediments and the underlying

glacial till

Flooding: None

Shallowest depth to wet zone: 1 foot (April)

Deepest depth to wet zone: 4 feet (September)

Ponding: None

Available water capacity to a depth of 60 inches: 11.3

inches

Content of organic matter in the upper 10 inches: 4.7

percent

Urban land

General description: This component consists of areas

that are covered by buildings, roads, streets,

parking lots, mobile home parks, and other

structures. The original soils can no longer be

identified.

Extent: 30 to 50 percent of the mapped areas

Minor Dissimilar Components

Tripoli and similar soils

Extent: 5 to 25 percent of the mapped areas

4408B—Olin-Urban land complex, 2 to 5

percent slopes

Component Description

Olin and similar soils

Extent: 30 to 50 percent of the mapped areas

Geomorphic setting: Uplands; hills
Black Hawk County, Iowa 49

Position on the landform: Summits

Geomorphic component: Interfluves

Slope range: 2 to 5 percent

Depth to restrictive feature: Very deep (more than 60

inches)

Drainage class: Well drained

Parent material: Sandy sediments and the underlying

glacial till

Flooding: None

Depth to wet zone: More than 6.7 feet all year

Ponding: None

Available water capacity to a depth of 60 inches: 9.5

inches

Content of organic matter in the upper 10 inches: 1.9

percent

Urban land

General description: This component consists of areas

that are covered by buildings, roads, streets,

parking lots, mobile home parks, and other

structures. The original soils can no longer be

identified.

Extent: 30 to 50 percent of the mapped areas

Minor Dissimilar Components

Kenyon and similar soils

Extent: 0 to 20 percent of the mapped areas

Sparta and similar soils

Extent: 5 to 15 percent of the mapped areas

4408C—Olin-Urban land complex, 5 to 9

percent slopes

Component Description

Olin and similar soils

Extent: 30 to 50 percent of the mapped areas

Geomorphic setting: Uplands; hillsides

Position on the landform: Shoulders, backslopes

Geomorphic component: Interfluves

Slope range: 5 to 9 percent

Depth to restrictive feature: Very deep (more than 60

inches)

Drainage class: Well drained

Parent material: Sandy sediments and the underlying

glacial till

Flooding: None

Depth to wet zone: More than 6.7 feet all year

Ponding: None

Available water capacity to a depth of 60 inches: 9.5

inches

Content of organic matter in the upper 10 inches: 1.9

percent

Urban land

General description: This component consists of areas

that are covered by buildings, roads, streets,

parking lots, mobile home parks, and other

structures. The original soils can no longer be

identified.

Extent: 25 to 45 percent of the mapped areas

Minor Dissimilar Components

Sparta and similar soils

Extent: 5 to 25 percent of the mapped areas

Kenyon and similar soils

Extent: 0 to 20 percent of the mapped areas

4426B—Aredale-Urban land complex, 2 to

5 percent slopes

Component Description

Aredale and similar soils

Extent: 30 to 50 percent of the mapped areas

Geomorphic setting: Uplands; hills

Position on the landform: Summits

Geomorphic component: Interfluves

Slope range: 2 to 5 percent

Depth to restrictive feature: More than 60 inches

Drainage class: Well drained

Parent material: Loamy sediments and the underlying

glacial till

Flooding: None

Depth to wet zone: More than 6.7 feet all year

Ponding: None

Available water capacity to a depth of 60 inches: 10

inches

Content of organic matter in the upper 10 inches: 3.2

percent

Urban land

General description: This component consists of areas

that are covered by buildings, roads, streets,

parking lots, mobile home parks, and other

structures. The original soils can no longer be

identified.

Extent: 30 to 50 percent of the mapped areas
50 Soil Survey of

Minor Dissimilar Components

Kenyon and similar soils

Extent: 10 to 30 percent of the mapped areas

4426C—Aredale-Urban land complex, 5 to

9 percent slopes

Component Description

Aredale and similar soils

Extent: 35 to 55 percent of the mapped areas

Geomorphic setting: Hillsides; uplands

Position on the landform: Backslopes, shoulders

Geomorphic component: Interfluves

Slope range: 5 to 9 percent

Depth to restrictive feature: Very deep (more than 60

inches)

Drainage class: Well drained

Parent material: Loamy sediments and the underlying

glacial till

Flooding: None

Depth to wet zone: More than 6.7 feet all year

Ponding: None

Available water capacity to a depth of 60 inches: 10

inches

Content of organic matter in the upper 10 inches: 3.2

percent

Urban land

General description: This component consists of areas

that are covered by buildings, roads, streets,

parking lots, mobile home parks, and other

structures. The original soils can no longer be

identified.

Extent: 30 to 50 percent of the mapped areas

Minor Dissimilar Components

Kenyon and similar soils

Extent: 5 to 25 percent of the mapped areas

4585—Spillville, occasionally floodedColand, occasionally flooded-Urban

land complex, 0 to 2 percent slopes

Component Description

Spillville, occasionally flooded, and similar soils

Extent: 25 to 45 percent of the mapped areas

Geomorphic setting: Flood plains

Slope range: 0 to 2 percent

Depth to restrictive feature: Very deep (more than 60

inches)

Drainage class: Somewhat poorly drained

Parent material: Alluvium

Months in which flooding does not occur: January,

December

Highest frequency of flooding: Occasional (February,

March, April, May, June, July, August, September,

October, November)

Shallowest depth to wet zone: 1 foot (April)

Deepest depth to wet zone: 4 feet (September)

Ponding: None

Available water capacity to a depth of 60 inches: 11.8

inches

Content of organic matter in the upper 10 inches: 4.1

percent

Coland, occasionally flooded, and similar soils

Extent: 15 to 35 percent of the mapped areas

Geomorphic setting: Flood plains

Slope range: 0 to 2 percent

Depth to restrictive feature: Very deep (more than 60

inches)

Drainage class: Poorly drained

Parent material: Alluvium

Months in which flooding does not occur: January,

December

Highest frequency of flooding: Occasional (February,

March, April, May, June, July, August, September,

October, November)

Shallowest depth to wet zone: At the surface (April)

Deepest depth to wet zone: 3 feet (September)

Ponding: None

Available water capacity to a depth of 60 inches: 11.4

inches

Content of organic matter in the upper 10 inches: 5.7

percent

Urban land

General description: This component consists of areas

that are covered by buildings, roads, streets,

parking lots, mobile home parks, and other

structures. The original soils can no longer be

identified.

Extent: 15 to 35 percent of the mapped areas

Minor Dissimilar Components

Marshan soils that are 24 to 40 inches to sand and

gravel

Extent: 5 to 25 percent of the mapped areas
Black Hawk County, Iowa 51

4761—Franklin-Urban land complex, 1 to

3 percent slopes

Component Description

Franklin and similar soils

Extent: 40 to 60 percent of the mapped areas

Geomorphic setting: Uplands; hills

Position on the landform: Summits

Geomorphic component: Interfluves

Slope range: 1 to 3 percent

Depth to restrictive feature: Very deep (more than 60

inches)

Drainage class: Somewhat poorly drained

Parent material: Loess and the underlying glacial till

Flooding: None

Shallowest depth to wet zone: 1 foot (April)

Deepest depth to wet zone: 4 feet (September)

Ponding: None

Available water capacity to a depth of 60 inches: 11.4

inches

Content of organic matter in the upper 10 inches: 2.4

percent

Urban land

General description: This component consists of areas

that are covered by buildings, roads, streets,

parking lots, mobile home parks, and other

structures. The original soils can no longer be

identified.

Extent: 40 to 60 percent of the mapped areas

4771B—Waubeek-Urban land complex, 2

to 5 percent slopes

Component Description

Waubeek and similar soils

Extent: 30 to 50 percent of the mapped areas

Geomorphic setting: Uplands; hills

Position on the landform: Summits

Geomorphic component: Interfluves

Slope range: 2 to 5 percent

Depth to restrictive feature: Very deep (more than 60

inches)

Drainage class: Moderately well drained

Parent material: Loess and the underlying glacial till

Flooding: None

Shallowest depth to wet zone: 4 feet (April)

Deepest depth to wet zone: More than 6.7 feet

(September)

Ponding: None

Available water capacity to a depth of 60 inches: 11.5

inches

Content of organic matter in the upper 10 inches: 2.4

percent

Urban land

General description: This component consists of areas

that are covered by buildings, roads, streets,

parking lots, mobile home parks, and other

structures. The original soils can no longer be

identified.

Extent: 25 to 45 percent of the mapped areas

Minor Dissimilar Components

Franklin and similar soils

Extent: 10 to 20 percent of the mapped areas

Billett and similar soils

Extent: 0 to 20 percent of the mapped areas

4771D—Waubeek-Urban land complex, 5

to 14 percent slopes

Component Description

Waubeek and similar soils

Extent: 35 to 55 percent of the mapped areas

Geomorphic setting: Hillsides; uplands

Position on the landform: Summits

Geomorphic component: Side slopes

Slope range: 5 to 14 percent

Depth to restrictive feature: Very deep (more than 60

inches)

Drainage class: Moderately well drained

Parent material: Loess and the underlying glacial till

Flooding: None

Shallowest depth to wet zone: 4 feet (April)

Deepest depth to wet zone: More than 6.7 feet

(September)

Ponding: None

Available water capacity to a depth of 60 inches: 11.5

inches

Content of organic matter in the upper 10 inches: 2.4

percent

Urban land

General description: This component consists of areas

that are covered by buildings, roads, streets,
52 Soil Survey of

parking lots, mobile home parks, and other

structures. The original soils can no longer be

identified.

Extent: 30 to 50 percent of the mapped areas

Minor Dissimilar Components

Billett and similar soils

Extent: 5 to 25 percent of the mapped areas

4798—Protivin-Urban land complex, 1 to 3

percent slopes

Component Description

Protivin and similar soils

Extent: 35 to 55 percent of the mapped areas

Geomorphic setting: Hills; uplands

Position on the landform: Summits

Geomorphic component: Interfluves

Slope range: 1 to 3 percent

Depth to restrictive feature: Very deep (more than 60

inches)

Drainage class: Somewhat poorly drained

Parent material: Loamy sediments and the underlying

glacial till

Flooding: None

Shallowest depth to wet zone: 1 foot (April)

Deepest depth to wet zone: 4 feet (September)

Ponding: None

Available water capacity to a depth of 60 inches: 10.2

inches

Content of organic matter in the upper 10 inches: 6.4

percent

Urban land

General description: This component consists of areas

that are covered by buildings, roads, streets,

parking lots, mobile home parks, and other

structures. The original soils can no longer be

identified.

Extent: 30 to 50 percent of the mapped areas

Minor Dissimilar Components

Readlyn and similar soils

Extent: 0 to 20 percent of the mapped areas

Donnan and similar soils

Extent: 0 to 10 percent of the mapped areas

4911B—Colo-Ely-Urban land complex, 2

to 5 percent slopes

Component Description

Colo and similar soils

Extent: 30 to 50 percent of the mapped areas

Geomorphic setting: Drainageways on uplands

Slope range: 2 to 3 percent

Depth to restrictive feature: Very deep (more than 60

inches)

Drainage class: Poorly drained

Parent material: Alluvium

Months in which flooding does not occur: January,

December

Highest frequency of flooding: Frequent (February,

March, April, May, June, July, August, September,

October, November)

Shallowest depth to wet zone: At the surface (April)

Deepest depth to wet zone: 3 feet (September)

Ponding: None

Available water capacity to a depth of 60 inches: 12.6

inches

Content of organic matter in the upper 10 inches: 5.7

percent

Ely and similar soils

Extent: 20 to 40 percent of the mapped areas

Geomorphic setting: Uplands; hills

Position on the landform: Footslopes

Geomorphic component: Base slopes

Slope range: 3 to 5 percent

Depth to restrictive feature: Very deep (more than 60

inches)

Drainage class: Somewhat poorly drained

Parent material: Local alluvium

Flooding: None

Shallowest depth to wet zone: 1 foot (April)

Deepest depth to wet zone: 4 feet (September)

Ponding: None

Available water capacity to a depth of 60 inches: 12.3

inches

Content of organic matter in the upper 10 inches: 5

percent

Urban land

General description: This component consists of areas

that are covered by buildings, roads, streets,

parking lots, mobile home parks, and other
Black Hawk County, Iowa 53

structures. The original soils can no longer be

identified.

Extent: 20 to 40 percent of the mapped areas

4933—Sawmill, occasionally floodedUrban land complex, 0 to 2 percent

slopes

Component Description

Sawmill, occasionally flooded, and similar soils

Extent: 35 to 55 percent of the mapped areas

Geomorphic setting: Flood plains

Slope range: 0 to 2 percent

Depth to restrictive feature: Very deep (more than 60

inches)

Drainage class: Poorly drained

Parent material: Alluvium

Months in which flooding does not occur: January,

December

Highest frequency of flooding: Occasional (February,

March, April, May, June, July, August, September,

October, November)

Shallowest depth to wet zone: At the surface (April)

Deepest depth to wet zone: 3 feet (September)

Ponding: None

Available water capacity to a depth of 60 inches: 12.3

inches

Content of organic matter in the upper 10 inches: 6

percent

Urban land

General description: This component consists of areas

that are covered by buildings, roads, streets,

parking lots, mobile home parks, and other

structures. The original soils can no longer be

identified.

Extent: 35 to 55 percent of the mapped areas

Minor Dissimilar Components

Nevin and similar soils

Extent: 0 to 20 percent of the mapped areas

4946—Orthents-Urban land complex

Component Description

Orthents, loamy, and similar soils

Extent: 40 to 60 percent of the mapped areas

Depth to restrictive feature: More than 60 inches

Flooding: None

Ponding: None

Urban land

General description: This component consists of areas

that are covered by buildings, roads, streets,

parking lots, mobile home parks, and other

structures. The original soils can no longer be

identified.

Extent: 40 to 60 percent of the mapped areas

5010—Pits, sand and gravel

Definition: This map unit consists of areas from which

sand and gravel have been removed.

Extent: 100 percent of the map unit

5030—Pits, limestone quarries

Definition: This map unit consists of areas from which

limestone has been removed.

Extent: 100 percent of the map unit

5040—Orthents, loamy

Component Description

Orthents, loamy, and similar soils

Extent: 100 percent of the map unit

Depth to restrictive feature: More than 60 inches

Flooding: None

Ponding: None

5053—Psammaquents, frequently flooded

Component Description

Psammaquents, frequently flooded, and similar

soils

Extent: 100 percent of the map unit

Geomorphic setting: Flood plains

Slope range: 0 to 2 percent

Depth to restrictive feature: More than 60 inches

Drainage class: Very poorly drained

Months in which flooding does not occur: January,

December

Highest frequency of flooding: Frequent (February,

March, April, May, June, July, August, September,

October, November)
54

Shallowest depth to wet zone: 0.5 foot (January,

February, March, April, May, June, July,

November, December)

Deepest depth to wet zone: More than 6 feet (August,

September, October)

Ponding: None

5080—Orthents, sanitary landfill

Component Description

Orthents, sanitary landfill, and similar soils

Extent: 100 percent of the map unit

Depth to restrictive feature: More than 60 inches

Flooding: None

Ponding: None

AW—Animal waste

• This map unit consists of shallow ponds constructed

to hold animal waste from farm feedlots.

SL—Sewage lagoon

• This map unit consists of shallow ponds constructed

to hold sewage while aerobic bacteria decompose the

solid and liquid waste.

W—Water

• This map unit consists of natural bodies of water.
55

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 forestland; as sites for buildings, sanitary facilities,

highways and other transportation systems, and parks

and other recreational facilities; and as 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.

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, gravel, 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.

Interpretive Ratings

The interpretive tables in this survey rate the soils in

the survey area for various uses. Many of the tables

identify the limitations that affect specified uses and

indicate the severity of those limitations. The ratings in

these tables are both verbal and numerical.

Rating Class Terms

Rating classes are expressed in the tables in terms

that indicate the extent to which the soils are limited by

all of the soil features that affect a specified use or in

terms that indicate the suitability of the soils for the

use. Thus, the tables may show limitation classes or

suitability classes. Terms for the limitation classes are

not limited, somewhat limited, and very limited. The

suitability ratings are expressed as well suited,

moderately suited, poorly suited, and unsuited or as

good, fair, and poor.

Numerical Ratings

Numerical ratings in the tables indicate the relative

severity of individual limitations. The ratings are shown

as decimal fractions ranging from 0.00 to 1.00. They

indicate gradations between the point at which a soil

feature has the greatest negative impact on the use

and the point at which the soil feature is not a

limitation. The limitations appear in order from the

most limiting to the least limiting. Thus, if more than

one limitation is identified, the most severe limitation is

listed first and the least severe one is listed last.

Crops and Pasture

General management needed for crops and pasture

is suggested in this section. The estimated yields of

the main crops and pasture plants are listed, the

system of land capability classification used by the

Natural Resources Conservation Service is explained,

and prime farmland is described.

Planners of management systems for individual

fields or farms should consider the detailed

information given in the description of each soil under

the heading “Detailed Soil Map Units.” Specific

information can be obtained from the local office of the

Natural Resources Conservation Service or the

Cooperative Extension Service.

Use and Management of the Soils
56 Soil Survey of

Cropland Management Considerations

The management concerns affecting the use of the

detailed soil map units for crops are shown in table 5.

The main concerns in managing nonirrigated cropland

are conserving moisture, controlling wind erosion and

water erosion, and maintaining soil fertility.

Conserving moisture consists primarily of reducing

the evaporation and runoff rates and increasing the

water infiltration rate. 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 wind erosion and water erosion.

Conservation tillage, stripcropping, field windbreaks,

contour farming, conservation cropping systems, crop

residue management, terraces, 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.

Some of the considerations shown in the table

cannot be easily overcome. These are channels,

flooding, gullies, and ponding.

Additional considerations include the following:

Lime content, limited available water capacity,

potential poor tilth and compaction, and restricted

permeability.—These limitations can be minimized 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 in areas of soils that have a high

content of lime.

Potential for ground-water contamination.—The

proper use of nutrients and pesticides can reduce the

risk of ground-water contamination.

Potential for surface-water contamination.—The risk

of surface-water contamination can be reduced by the

proper use of nutrients and pesticides and by

conservation farming practices that reduce the runoff

rate.

Surface crusting.—This limitation retards seedling

development after periods of heavy rainfall.

Surface rock fragments.—This limitation causes

rapid wear of tillage equipment. It cannot be easily

overcome.

Surface stones.—Stones or boulders on or near the

surface can hinder normal tillage unless they are

removed.

Salt content.—In areas where this is a limitation,

only salt-tolerant crops should be grown.

On irrigated soils the main management concerns

are efficient water use, nutrient management, control

of erosion, 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 increase wetness and soil salinity.

Explanation of Criteria

Acid soil.—The pH is less than 6.1.

Channeled.—The word “channeled” is included in

the map unit name.

Dense layer.—The bulk density is 1.80 g/cc or

greater within the soil profile.

Depth to rock.—The depth to bedrock is less than

40 inches.

Eroded.—The word “eroded” is included in the map

unit name.

Excessive permeability.—Saturated hydraulic

conductivity is 42 micrometers per second or more

within the soil profile.

Flooding.—Flooding is occasional, frequent, or very

frequent.

Gullied.—The word “gullied” is included in the map

unit name.

High content of organic matter.—The surface layer

has more than 20 percent organic matter.

Lime content.—The pH is 7.4 or more in the surface

layer, or the wind erodibility group is 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.

Limited content of organic matter.—The content of

organic matter is 2 percent or less in the surface layer.

Ponding.—Ponding duration is assigned to the map

unit component. Water is above the surface.

Potential poor tilth and compaction.—The content of

clay is 27 percent or more in the surface layer.

Potential for ground-water contamination (by

nutrients or pesticides).—The depth to a seasonal

high water table is 4 feet or less, the saturated

hydraulic conductivity of any layer is more than 42

micrometers per second, or the depth to bedrock is

less than 60 inches.

Potential for surface-water contamination (by

nutrients or pesticides).—The map unit component is
Black Hawk County, Iowa 57

occasionally, frequently, or very frequently flooded, is

subject to ponding, is assigned to hydrologic group C

or D and has a slope of more than 2 percent, is

assigned to hydrologic group A and has a slope of

more than 6 percent, or is assigned to hydrologic

group B, has a slope of 3 percent or more, and has a

K factor of more than 0.17.

Restricted permeability.—Saturated hydraulic

conductivity is less than 0.42 micrometer per second

within the soil profile.

Salt content.—The electrical conductivity is 4 or

more in the surface layer or 8 or more within a depth

of 30 inches.

Seasonal high water table.—The water table is

within 2.5 feet of the surface.

Slope (equipment limitation).—The slope is more

than 15 percent.

Surface crusting.—The content of clay in the

surface layer is 27 percent or more, and the content of

organic matter is 2 percent or less.

Surface rock fragments (equipment limitation).—

The terms describing the texture of the surface layer

include any rock fragment modifier, except for gravelly,

channery, stony, very stony, extremely stony, bouldery,

very bouldery, and extremely bouldery.

Surface stones (equipment limitation).—The word

“stony” or “bouldery” is included in the description of

the surface layer, or at least 0.01 percent of the

surface is covered with boulders.

Water erosion.—Either the slope is 6 percent or

more, or the slope is more than 3 percent and less

than 6 percent and the surface layer is not sandy.

Wind erosion.—The wind erodibility group is 1, 2, 3,

or 4L.

Hydrologic groups are described under the heading

“Water Features.” Erosion factors (e.g., K factor) and

wind erodibility groups are described under the

heading “Physical Properties.”

Crop Yield Estimates

The average yields per acre that can be expected

of the principal crops under a high level of

management are shown in table 6. 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 land capability classification of

each soil also is shown in the table.

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 also are

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 highyielding 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 table 6 are grown

in the survey area, but estimated yields are not listed

because the acreage of such crops is small. The local

office of the Natural Resources Conservation Service

or of the Cooperative Extension Service can provide

information about the management and productivity of

the soils for those crops.

Table 6 also shows the corn suitability rating (CSR)

for the soils in the survey area. Corn suitability ratings

provide a relative ranking of all soils mapped in the

State of Iowa based on their potential to be utilized for

the intensive production of row crops. The CSR is an

index that can be used to rate the potential production

of one soil compared with another over a period of

time. The CSR considers average weather conditions

and frequency of use of the soil for row crops. Ratings

range from 100 for soils that have no physical

limitations, are on minimal slopes, and can be

continuously row cropped to as low as 5 for soils that

have severe limitations affecting the production of row

crops. The ratings listed in this table assume adequate

management, natural weather conditions (no

irrigation), artificial drainage where required, and no

land leveling or terracing. They also assume that soils

in the lower positions on the landscape are not

affected by frequent damaging floods. The weighted

CSR for a given field can be modified by the

occurrence of sandy spots, local deposits, rock and

gravel outcrops, field boundaries, and noncrossable

drainageways. Even though predicted average yields

will change with time, the CSRs are expected to

remain relatively constant in relation to one another.

The CSRs in Black Hawk County range from 95 (for

map unit 7) to 5 (for map unit 159C, for example). No

ratings are provided for miscellaneous areas because

of the variability of properties and use of these areas.

Inherent subsoil fertility levels, in terms of potential
58 Soil Survey of

plant-available phosphorus and potassium, also are

given in table 6. Soil tests of the tilled layer are used to

determine the most profitable rates of fertilizers for

various crops. Nutrient levels in the subsurface layers

influence crop yields, particularly in the drier seasons

when the nutrients in the dry tilled layer become

temporarily unavailable to plants. The availability of

nutrients in the tilled layer and the subsoil influences

the relative uptake from the two zones in the soil

profile. Fertilizer recommendations based on soil

tests of the tilled layer may be adjusted by the

average nutrient levels in the subsoil of each soil

series. The ratings given in the table are described as

follows:

Subsoil phosphorus.—The amount of plantavailable phosphorus in the subsoil expressed in

parts per million and based on the weighted average

of air-dried soil samples from the subsoil (at a depth

of 30 to 42 inches). (The value listed for complexes is

the most limiting value of the soils identified in the

map unit name.) A rating of very low (VL) indicates

less than 7.5 ppm; low (L), 7.5 to 13.0 ppm; medium

(M), 13.0 to 22.5 ppm; and high (H), more than 22.5

ppm.

Subsoil potassium.—The amount of plant-available

potassium in the subsoil expressed in parts per million

and based on the weighted average of air-dried soil

samples from the subsoil (at a depth of 12 to 24

inches). (The value listed for complexes is the most

limiting value of the soils identified in the map unit

name.) A rating of very low (VL) indicates less than 50

ppm; low (L), 50 to 79 ppm; medium (M), 79 to 125

ppm; and high (H), more than 125 ppm.

Pasture and Hayland Interpretations

Under good 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.

The average yields per acre that can be expected

of the principal pasture and hay crops under a high

level of management are shown in table 7. Yield

estimates are often provided 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.

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 take into

account 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 woodland or for

engineering purposes.

In the capability system, soils generally are grouped

at three levels—capability class, subclass, and unit

(USDA, 1961). These categories 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 fieldgrown vegetables. Only class and subclass are used

in this survey.

Capability classes, the broadest groups, are

designated by the numbers 1 through 8. The numbers

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.

Areas in class 8 are generally not suitable for crops,

pasture, or woodland without a level of management

that is impractical. These areas may have potential for

other uses, such as recreational facilities and wildlife

habitat.
Black Hawk County, Iowa 59

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 has been 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, woodland, wildlife habitat, or

recreation.

The capability classification of the soils in the

survey area is given in tables 6 and 7.

Prime Farmland

Prime farmland is of major importance in meeting

the Nation’s short- and long-range 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.

Prime farmland soils may presently be used as

cropland, pasture, 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

mainly from 0 to 6 percent.

Soils that have a high water table or are subject to

flooding may qualify as prime farmland where these

limitations are overcome by drainage measures or

flood control. 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.

The map units in the survey area that meet the

requirements for prime farmland are listed in table 8.

This list does not constitute a recommendation for a

particular land use. On some soils included in the

table, measures that overcome limitations are needed.

The need for these measures is indicated in

parentheses after the map unit name. 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.”

Windbreaks and Environmental

Plantings

Windbreaks protect livestock, buildings, yards, fruit

trees, gardens, and cropland from wind and snow;

help to keep snow on fields; and provide food and

cover for wildlife. 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.

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
60 Soil Survey of

on a well prepared site and maintained in good

condition.

Table 9 shows the height that locally grown trees

and shrubs are expected to reach in 20 years on

various soils. The estimates in table 9 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 of

the Cooperative Extension Service or from a

commercial nursery.

Woodland Management and

Productivity

Table 10 can help woodland owners or forest

managers plan the use of soils for wood crops. Only

the soils commonly used for wood crops are listed.

The potential productivity of merchantable or

common trees on a soil is expressed as a site index

and as a volume number. The site index is the average

height, in feet, that dominant and codominant trees of

a given species attain in a specified number of years.

The site index applies to fully stocked, even-aged,

unmanaged stands. Commonly grown trees are those

that woodland managers generally favor in

intermediate or improvement cuttings. They are

selected on the basis of growth rate, quality, value,

and marketability.

The volume, a number, is the yield likely to be

produced by the most important trees. This number,

expressed as cubic feet per acre per year, indicates

the amount of fiber produced in a fully stocked, evenaged, unmanaged stand.

Trees to manage are those that are suitable for

commercial wood production.

Recreation

The soils of the survey area are rated in tables 11a

and 11b 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 tables 11a and 11b 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
Black Hawk County, Iowa 61

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

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.

Wildlife Habitat

Soils affect the kind and amount of vegetation that

is available to wildlife as food and cover. They also

affect the construction of water impoundments. The

kind and abundance of wildlife depend largely on the

amount and distribution of food, cover, and water.

Wildlife habitat can be created or improved by planting

appropriate vegetation, by maintaining the existing

plant cover, or by promoting the natural establishment

of desirable plants.

In table 12, the soils in the survey area are rated

according to their potential for providing habitat for

various kinds of wildlife. This information can be used

in planning parks, wildlife refuges, nature study areas,

and other developments for wildlife; in selecting soils

that are suitable for establishing, improving, or

maintaining specific elements of wildlife habitat; and in

determining the intensity of management needed for

each element of the habitat.

The potential of the soil is rated good, fair, poor, or

very poor. A rating of good indicates that the element

or kind of habitat is easily established, improved, or

maintained. Few or no limitations affect management,

and satisfactory results can be expected. A rating of

fair indicates that the element or kind of habitat can be

established, improved, or maintained in most places.

Moderately intensive management is required for

satisfactory results. A rating of poor indicates that

limitations are severe for the designated element or

kind of habitat. Habitat can be created, improved, or

maintained in most places, but management is difficult

and must be intensive. A rating of very poor indicates

that restrictions for the element or kind of habitat are

very severe and that unsatisfactory results can be

expected. Creating, improving, or maintaining habitat

is impractical or impossible.

The elements of wildlife habitat are described in the

following paragraphs.
62 Soil Survey of

Grain and seed crops are domestic grains and

seed-producing herbaceous plants. Soil properties

and features that affect the growth of grain and seed

crops are depth of the root zone, texture of the surface

layer, available water capacity, wetness, slope, surface

stoniness, and flooding. Soil temperature and soil

moisture also are considerations. Examples of grain

and seed crops are corn, soybeans, wheat, oats, and

barley.

Grasses and legumes are domestic perennial

grasses and herbaceous legumes. Soil properties and

features that affect the growth of grasses and legumes

are depth of the root zone, texture of the surface layer,

available water capacity, wetness, surface stoniness,

flooding, and slope. Soil temperature and soil moisture

also are considerations. Examples of grasses and

legumes are bromegrass, timothy, orchardgrass,

clover, and alfalfa.

Wild herbaceous plants are native or naturally

established grasses and forbs, including weeds. Soil

properties and features that affect the growth of these

plants are depth of the root zone, texture of the

surface layer, available water capacity, wetness,

surface stoniness, and flooding. Soil temperature and

soil moisture also are considerations. Examples of wild

herbaceous plants are bluestem, bluegrass,

dandelion, goldenrod, ragweed, wheatgrass, and

nightshade.

Hardwood trees and woody understory produce

nuts or other fruit, buds, catkins, twigs, bark, and

foliage. Soil properties and features that affect the

growth of hardwood trees and shrubs are depth of the

root zone, available water capacity, and wetness.

Examples of these plants are oak, poplar, box elder,

birch, maple, green ash, willow, and American elm.

Examples of fruit-producing shrubs that are suitable

for planting on soils rated good are Russian-olive,

autumn-olive, and crabapple.

Coniferous plants furnish browse and seeds. Soil

properties and features that affect the growth of

coniferous trees, shrubs, and ground cover are depth

of the root zone, available water capacity, and

wetness. Examples of coniferous plants are pine,

spruce, fir, cedar, and juniper.

Wetland plants are annual and perennial wild

herbaceous plants that grow on moist or wet sites.

Submerged or floating aquatic plants are excluded.

Soil properties and features affecting wetland plants

are texture of the surface layer, wetness, reaction,

salinity, slope, and surface stoniness. Examples of

wetland plants are smartweed, wild millet, wildrice,

rushes, sedges, and reeds.

Shallow water areas have an average depth of less

than 5 feet. Some are naturally wet areas. Others are

created by dams, levees, or other water-control

structures. Soil properties and features affecting

shallow water areas are depth to bedrock, wetness,

surface stoniness, slope, and permeability. Examples

of shallow water areas are marshes, waterfowl feeding

areas, and ponds.

The habitat for various kinds of wildlife is described

in the following paragraphs.

Habitat for openland wildlife consists of cropland,

pasture, meadows, and areas that are overgrown with

grasses, herbs, shrubs, and vines. These areas

produce grain and seed crops, grasses and legumes,

and wild herbaceous plants. Wildlife attracted to these

areas include Hungarian partridge, ring-necked

pheasant, bobwhite quail, sharp-tailed grouse,

meadowlark, field sparrow, killdeer, cottontail rabbit,

and red fox.

Habitat for woodland wildlife consists of areas of

deciduous and/or coniferous plants and associated

grasses, legumes, and wild herbaceous plants. Wildlife

attracted to these areas include wild turkey, ruffed

grouse, woodcock, thrushes, woodpeckers, owls, tree

squirrels, gray fox, raccoon, and deer.

Habitat for wetland wildlife consists of open, marshy

or swampy shallow water areas. Some of the wildlife

attracted to such areas are ducks, geese, herons,

shore birds, muskrat, mink, and beaver.

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 building site development, sanitary facilities,

construction materials, and water management. The

ratings are based on observed performance of the

soils and on the data in the tables described under the

heading “Soil Properties.”

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 between the surface and a

depth of 5 to 7 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
Black Hawk County, Iowa 63

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 particle-size

distribution, liquid limit, plasticity index, soil reaction,

depth to bedrock, hardness of bedrock within 5 to 7

feet of the surface, soil wetness, depth to a water

table, ponding, 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.

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. Tables 13a and

13b 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
64 Soil Survey of

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 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 (shrinkswell 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.

Sanitary Facilities

Tables 14a and 14b 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. 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 between depths of 24 and 72 inches or

between a depth of 24 inches and a restrictive layer 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.
Black Hawk County, Iowa 65

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. Groundwater 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.

A 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

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.

In an area sanitary landfill, 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.
66 Soil Survey of

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.

Construction Materials

Tables 15a and 15b give information about the soils

as potential sources of gravel, sand, reclamation

material, roadfill, and topsoil. 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 table 15a, 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 as possible, probable, or

improbable sources of gravel and are rated good, fair,

or poor as potential sources of sand. In this table,

gravel is defined as particles ranging from 0.2 inch to

3.0 inches in diameter. Soils rated as a possible

source of gravel contain at least 25 percent gravel, by

weight. Soils rated as a probable source contain at

least 50 percent gravel, by weight. The likelihood of the

soil being a source of gravel is reduced by the content

of rock fragments larger than 3 inches in diameter. For

sand, a rating of good or fair means that the source

material is likely to be in or below the soil. For both

sand and gravel, 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 reclamation material, roadfill, and topsoil.

The features that limit the soils as sources of these

materials are specified in the table. The numerical

ratings given after the specified features indicate the

degree to which the features limit the soils as sources

of reclamation material, roadfill, or topsoil. 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 soil properties that

affect plant growth; the ease of excavating, loading,
Black Hawk County, Iowa 67

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.

Water Management

Table 16 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 60 inches. 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 5 or 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.

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.

Tables 17a and 17b 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
68 Soil Survey of

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.

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,
Black Hawk County, Iowa 69

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. 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 cationexchange 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.

71

Data relating to soil properties are collected during

the course of the soil survey.

Soil properties are ascertained 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 particle-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 are shown in

tables. They include engineering index properties,

physical and chemical properties, and pertinent soil

and water features.

Engineering Index Properties

Table 18 gives the engineering classifications and

the range of index properties for the layers of each soil

in the survey area.

Depth to the upper and lower boundaries of each

layer is indicated.

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 (fig. 8). “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 15 percent or more, an

appropriate modifier is added, for example, “gravelly.”

Textural terms are defined in the Glossary.

Classification of the soils is determined according to

the Unified soil classification system (ASTM, 2005)

and the system adopted by the American Association

of State Highway and Transportation Officials

(AASHTO, 2004).

The Unified system classifies soils according to

properties that affect their use as construction

material. Soils are classified according to particle-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, CL-ML.

The AASHTO system classifies soils according to

those properties that affect roadway construction and

maintenance. In this system, the fraction of a mineral

soil 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 particle-size distribution, liquid limit, and

plasticity index. Soils in group A-1 are coarse grained

Soil Properties

Figure 8.—Percentages of clay, silt, and sand in the basic

USDA soil textural classes.
72 Soil Survey of

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.

The estimates of particle-size distribution, liquid

limit, and plasticity index are generally rounded to the

nearest 5 percent. Thus, if the ranges of gradation and

Atterberg limits extend a marginal amount (1 or 2

percentage points) across classification boundaries,

the classification in the marginal zone is generally

omitted in the table.

Physical Properties

Table 19 shows estimates of some physical

characteristics and features that affect soil behavior.

These estimates are given for the 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.

Clay as a soil separate consists of mineral soil

particles that are less than 0.002 millimeter in

diameter. In table 19, 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 affect the fertility and

physical condition of the soil and 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 earthmoving 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- or 1/10-bar (33kPa or 10kPa) moisture tension.

Weight is determined after the soil is dried at 105

degrees C. In the table, the estimated moist bulk

density of each 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. Depending on soil

texture, a bulk density of more than 1.4 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 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 soil layer. The

capacity varies, depending on soil properties that

affect retention of water. 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 percent change for the whole soil. Volume
Black Hawk County, Iowa 73

change is influenced by the amount and type of clay

minerals in the soil.

Linear extensibility is used to determine the shrinkswell 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. In table

19, 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 by returning crop residue to the soil.

Organic matter has a positive effect on available water

capacity, water infiltration, soil organism activity, and

tilth. It is a source of nitrogen and other nutrients for

crops and soil organisms.

Erosion factors are shown in table 19 as the K

factor (Kw and Kf) and the T factor. 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) and the

Revised Universal Soil Loss Equation (RUSLE) to

predict the average annual rate of soil loss by sheet

and rill erosion in tons per acre per year. The

estimates are based primarily on percentage of silt,

sand, and organic matter and on soil structure and

permeability. Values of K range from 0.02 to 0.69.

Other factors being equal, the higher the value, the

more susceptible the soil is to sheet and rill erosion by

water.

Erosion factor Kw indicates the erodibility of the

whole soil. The estimates are modified by the

presence of rock fragments.

Erosion factor Kf indicates the erodibility of the fineearth fraction, or the material less than 2 millimeters in

size.

Erosion factor T is an estimate of the maximum

average annual rate of soil erosion by wind or water

that can occur without affecting crop productivity over

a sustained period. The rate is in tons per acre per

year.

Wind erodibility groups are made up of soils that

have similar properties affecting their susceptibility to

wind erosion in cultivated areas. The soils assigned to

group 1 are the most susceptible to wind erosion, and

those assigned to group 8 are the least susceptible.

Descriptions of these groups are available in the

National Soil Survey Handbook (USDA/NRCS).

Wind erodibility index is a numerical value indicating

the susceptibility of soil to wind erosion, or the tons

per acre per year that can be expected to be lost to

wind erosion. There is a close correlation between

wind erosion and the texture of the surface layer, the

size and durability of surface clods, rock fragments,

organic matter, and a calcareous reaction. Soil

moisture and frozen soil layers also influence wind

erosion.

Chemical Properties

Table 20 shows estimates of some chemical

characteristics and features that affect soil behavior.

These estimates are given for the 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.

Cation-exchange capacity is the total amount of

extractable bases 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 cation-exchange capacity

hold fewer cations and may require more frequent

applications of fertilizer than soils having a high cationexchange capacity. The ability to retain cations

reduces the hazard of ground-water pollution.

Effective cation-exchange capacity refers to the

sum of extractable bases plus aluminum expressed in

terms of milliequivalents per 100 grams of soil. It is

determined for soils that have pH of less than 5.5.

Soil reaction is a measure of acidity or alkalinity.

The pH of each soil 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 fraction of the soil less

than 2 millimeters in size. 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.

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 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
74 Soil Survey of

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 soil if used as

construction material, and the potential of the soil to

corrode metal and concrete.

Water Features

Table 21 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 longduration 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.

If a soil is assigned to a dual hydrologic group (A/D,

B/D, or C/D), the first letter is for drained areas and the

second is for undrained areas.

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.

Table 21 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. Table 21 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 is the temporary inundation of an area

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 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
Black Hawk County, Iowa 75

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.

Soil Features

Table 22 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 restrict roots or

otherwise provide an unfavorable root environment.

Examples are bedrock, cemented layers, dense

layers, and frozen layers. The table indicates the

hardness and thickness of the restrictive layer, both of

which significantly affect the ease of excavation. Depth

to top is the vertical distance from the soil surface to

the upper boundary of the restrictive layer.

Subsidence is the settlement of organic soils or of

saturated mineral soils of very low density. Subsidence

generally results from either desiccation and

shrinkage or oxidation of organic material, or both,

following drainage. Subsidence takes place gradually,

usually over a period of several years. The table shows

the expected initial subsidence, which usually is a

result of drainage, and total subsidence, which results

from a combination of factors.

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 to pavements and other rigid

structures.

Risk of corrosion pertains to potential soil-induced

electrochemical or chemical action that corrodes 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 or concrete in

installations that intersect soil boundaries or soil layers

is more susceptible to corrosion than the steel or

concrete 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.

77

The system of soil classification used by the

National Cooperative Soil Survey has six categories

(Soil Survey Staff, 1998 and 1999). 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. Table 23 shows the

classification of the soils in the survey area. The

categories are defined in the following paragraphs.

ORDER. Twelve soil orders are recognized. The

differences among orders reflect the dominant soilforming 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 Aquolls

(Aqu, meaning water, 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; type of saturation; 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 Endoaquolls (Endo, meaning within, plus

aquoll, the suborder of the Mollisols that has an aquic

moisture regime).

SUBGROUP. Each great group has a typic

subgroup. Other subgroups are intergrades or

extragrades. The typic subgroup 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

taxonomic class. Each subgroup is identified by one or

more adjectives preceding the name of the great

group. The adjective Typic identifies the subgroup that

typifies the great group. An example is Typic

Endoaquolls.

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,

mineralogy class, cation-exchange activity class, soil

temperature regime, soil depth, and reaction class. A

family name consists of the name of a subgroup

preceded by terms that indicate soil properties. An

example is fine-loamy, mixed, superactive, mesic Typic

Endoaquolls.

SERIES. The series consists of soils within a

family that have horizons similar in color, texture,

structure, reaction, consistence, mineral and chemical

composition, and arrangement in the profile.

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 series. A pedon, a small three-dimensional area

of soil, that 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”

(Soil Survey Division Staff, 1993). Many of the

technical terms used in the descriptions are defined in

“Soil Taxonomy” (Soil Survey Staff, 1999) and in “Keys

to Soil Taxonomy” (Soil Survey Staff, 1998). Unless

otherwise indicated, colors in the descriptions are for

moist soil. Following the pedon description is the range

of important characteristics of the soils in the series.

Aredale Series

Typical Pedon

Aredale loam, 2 to 5 percent slopes, in a cultivated

field; 1,500 feet south and 80 feet east of the

northwest corner of sec. 2, T. 89 N., R. 11 W.; USGS

Littleton SW topographic quarter quadrangle; lat. 42

degrees 33 minutes 03.9 seconds N. and long. 92

degrees 07 minutes 15.75 seconds W., NAD 83:

Classification of the Soils
78 Soil Survey of

Ap—0 to 8 inches; black (10YR 2/1) loam, very dark

gray (10YR 3/1) dry; weak fine granular structure;

friable; common fine roots; common fine tubular

pores; neutral; clear smooth boundary.

A1—8 to 14 inches; black (10YR 2/1) loam, very dark

gray (10YR 3/1) dry; weak fine granular structure;

friable; common fine roots; common fine tubular

pores; neutral; clear smooth boundary.

A2—14 to 18 inches; about 60 percent very dark

brown (10YR 2/2) and 40 percent very dark

grayish brown (10YR 3/2) loam, dark grayish

brown (10YR 4/2) dry; weak fine subangular

blocky structure parting to weak fine and medium

granular; friable; common very fine roots; common

fine tubular pores; neutral; clear smooth boundary.

AB—18 to 24 inches; about 50 percent dark brown

(10YR 3/3) and 50 percent brown (10YR 4/3)

loam; weak fine subangular blocky structure

parting to weak fine and medium granular; friable;

common very fine roots; common fine tubular

pores; neutral; clear smooth boundary.

Bw1—24 to 29 inches; dark yellowish brown (10YR

4/4) and brown (10YR 4/3) loam; weak fine

subangular blocky structure parting to weak fine

and medium granular; friable; few very fine roots;

common fine tubular pores; slightly acid; gradual

smooth boundary.

Bw2—29 to 35 inches; yellowish brown (10YR 5/4)

loam; weak fine subangular blocky structure;

friable; few very fine roots; common fine tubular

pores; slightly acid; gradual smooth boundary.

Bw3—35 to 44 inches; yellowish brown (10YR 5/4)

loam; weak fine and medium subangular blocky

structure; friable; few fine tubular pores; few fine

very dark grayish brown (10YR 3/2) masses of

iron-manganese; discontinuous stone line

consisting of rounded gravel and cobbles 1 to 6

inches in diameter (5 to 10 percent of this

horizon); few fine prominent strong brown (7.5YR

5/8) redoximorphic concentrations; slightly acid;

gradual smooth boundary.

2Bw4—44 to 60 inches; yellowish brown (10YR 5/6)

loam; weak fine and medium subangular blocky

structure; firm; few very fine tubular pores;

common fine very dark brown (10YR 2/2) masses

of iron-manganese; about 2 percent subrounded

mixed gravel; common fine distinct strong brown

(7.5YR 5/8) redoximorphic concentrations;

common fine prominent grayish brown (10YR 5/2)

redoximorphic depletions; slightly acid; gradual

wavy boundary.

2BC—60 to 68 inches; yellowish brown (10YR 5/6)

loam; moderate fine prismatic and moderate fine

and medium subangular blocky structure; firm;

common fine very dark brown (10YR 2/2) masses

of iron-manganese; about 2 percent subrounded

mixed gravel; common fine prominent grayish

brown (10YR 5/2) redoximorphic depletions;

moderately acid; abrupt smooth boundary.

2Cg—68 to 80 inches; grayish brown (10YR 5/2) loam;

massive; firm; common fine prominent strong

brown (7.5YR 5/8) redoximorphic concentrations;

moderately acid.

Range in Characteristics

Thickness of the mollic epipedon: 12 to 24 inches

Depth to till: 42 to 60 inches

Depth to carbonates: More than 48 inches

Ap and A horizons:

Hue—10YR

Value—2 or 3

Chroma—1 to 3

Texture—loam

Bw horizon:

Hue—10YR

Value—4 or 5

Chroma—3 or 4

Texture—loam or sandy loam; a stone line is

commonly at the lower boundary of this horizon

2Bw horizon:

Hue—10YR or 7.5YR

Value—4 or 5

Chroma—2 to 6

Texture—loam or sandy loam

2BC and 2C horizons:

Hue—10YR or 7.5YR

Value—4 or 5

Chroma—2 to 6

Texture—loam

Taxadjunct features: The Aredale soil in map unit 462C2

is a taxadjunct because the surface layer does not

meet the requirements for a mollic epipedon.

Atkinson Series

Typical Pedon

Atkinson loam, 2 to 5 percent slopes, in a cultivated

field; Winneshiek County, Iowa; 465 feet east and 45

feet south of the northwest corner of sec. 18, T. 96 N.,

R. 10 W.; USGS Protivin SW topographic quarter

quadrangle; lat. 43 degrees 08 minutes 27.08 seconds

N. and long. 92 degrees 04 minutes 46.16 seconds W.,

NAD 83:

Ap—0 to 7 inches; very dark grayish brown (10YR 3/2)
Black Hawk County, Iowa 79

loam, dark grayish brown (10YR 4/2) dry; weak

and moderate fine granular structure; friable;

neutral; abrupt smooth boundary.

A—7 to 13 inches; very dark grayish brown (10YR 3/2)

loam, dark grayish brown (10YR 4/2) dry; weak

and moderate fine granular structure; friable;

slightly acid; clear smooth boundary.

BA—13 to 19 inches; dark brown (10YR 3/3) loam,

brown (10YR 4/3) dry; weak fine and medium

subangular blocky structure; friable; many fine and

medium pores; few very dark brown (10YR 2/2)

coatings on faces of peds; moderately acid; clear

smooth boundary.

Bt1—19 to 24 inches; brown (10YR 4/3) loam; weak

fine and medium subangular blocky structure;

friable; common faint discontinuous dark yellowish

brown (10YR 3/4) clay films on faces of peds and

in pores; stone line with a few stones up to 6

inches in diameter; moderately acid; abrupt

smooth boundary.

Bt2—24 to 35 inches; yellowish brown (10YR 5/4) clay

loam; moderate medium subangular blocky

structure; firm; common fine pores; many faint

discontinuous dark yellowish brown (10YR 4/4)

clay films on faces of peds and in pores; about 5

percent pebbles; moderately acid; clear smooth

boundary.

Bt3—35 to 45 inches; yellowish brown (10YR 5/4 and

5/6) clay loam; moderate medium subangular

blocky structure; firm; many fine pores; many faint

discontinuous dark yellowish brown (10YR 4/4)

clay films on faces of peds and in pores; about 5

percent pebbles; moderately acid; abrupt wavy

boundary.

2Bt4—45 to 50 inches; strong brown (7.5YR 5/6) clay;

moderate fine and medium subangular blocky

structure; very firm; moderately acid; abrupt wavy

boundary.

2R—50 inches; hard, fractured limestone bedrock.

Range in Characteristics

Thickness of the mollic epipedon: 10 to 20 inches

Depth to bedrock: 40 to 55 inches

Ap or A horizon:

Hue—10YR

Value—2 or 3

Chroma—1 or 2

Texture—loam or silt loam

BA horizon:

Hue—10YR

Value—3 or 4

Chroma—2 or 3

Texture—loam or silt loam

Bt horizon:

Hue—10YR or 7.5YR

Value—4 or 5

Chroma—3 to 6

Texture—clay loam, sandy clay loam, or loam

2Bt horizon:

Hue—7.5YR, 5YR, or 10YR

Value—3 to 6

Chroma—3 to 8

Texture—clay or silty clay

Bassett Series

Typical Pedon

Bassett loam, 2 to 5 percent slopes, in a cultivated

field; 2,600 feet north and 630 feet west of the

southeast corner of sec. 8, T. 90 N., R. 14 W.; USGS

New Hartford NE topographic quarter quadrangle; lat.

42 degrees 37 minutes 16.2 seconds N. and long. 92

degrees 31 minutes 01.3 seconds W., NAD 83:

Ap—0 to 8 inches; very dark brown (10YR 2/2) loam,

very dark grayish brown (10YR 3/2) dry; weak fine

granular structure; friable; common fine roots;

common fine tubular pores; neutral; clear smooth

boundary.

E—8 to 14 inches; dark grayish brown (10YR 4/2) and

brown (10YR 4/3) loam; weak fine and medium

subangular blocky structure; friable; common fine

roots; common fine tubular pores; common distinct

discontinuous dark brown (10YR 3/3) organic

coatings on faces of peds; slightly acid; clear

smooth boundary.

BE—14 to 19 inches; brown (10YR 4/3) loam; weak

fine and medium subangular blocky structure;

friable; common very fine roots; common fine

tubular pores; few faint discontinuous very dark

grayish brown (10YR 3/3) organic coatings on

faces of peds; moderately acid; clear smooth

boundary.

Bt1—19 to 24 inches; dark yellowish brown (10YR 4/4)

and yellowish brown (10YR 5/4) loam; moderate

fine and medium subangular blocky structure;

friable; few very fine roots; common fine tubular

pores; few faint discontinuous very dark grayish

brown (10YR 4/3) clay films on faces of peds;

about 2 percent subrounded mixed gravel;

discontinuous stone line consisting of rounded

gravel and cobbles 1 to 6 inches in diameter (5 to

10 percent of this horizon); common fine

prominent yellowish brown (10YR 5/8)

redoximorphic concentrations; moderately acid;

gradual smooth boundary.
80 Soil Survey of

2Bt2—24 to 32 inches; yellowish brown (10YR 5/6 and

5/8) loam; moderate fine and medium subangular

blocky structure; firm; few prominent discontinuous

very dark grayish brown (10YR 3/2) clay films;

common fine black (10YR 2/1) masses of ironmanganese; about 5 percent subrounded mixed

gravel; common fine prominent grayish brown

(10YR 5/2) redoximorphic depletions; moderately

acid; gradual smooth boundary.

2Bt3—32 to 48 inches; yellowish brown (10YR 5/6)

and grayish brown (10YR 5/2) loam; moderate

medium prismatic structure; firm; few prominent

discontinuous very dark grayish brown (10YR 3/2)

clay films; few prominent continuous light brownish

gray (10YR 6/2) silt coatings on faces of peds;

common fine very dark brown (10YR 2/2) masses

of iron-manganese; about 5 percent subrounded

mixed gravel; common fine prominent strong

brown (7.5YR 5/8) redoximorphic concentrations;

slightly acid; gradual smooth boundary.

2Bt4—48 to 60 inches; yellowish brown (10YR 5/6)

and grayish brown (10YR 5/2) clay loam;

moderate medium and coarse prismatic structure;

firm; few prominent discontinuous very dark

grayish brown (10YR 3/2) clay films; few

prominent continuous light brownish gray (10YR

6/2) silt coatings on faces of peds; common fine

very dark brown (10YR 2/2) masses of ironmanganese; about 8 percent subrounded mixed

gravel; common fine prominent strong brown

(7.5YR 5/8) redoximorphic concentrations; slightly

acid; gradual smooth boundary.

2BC—60 to 72 inches; yellowish brown (10YR 5/6)

and grayish brown (10YR 5/2) clay loam; weak

medium and coarse prismatic structure; firm;

common fine very dark brown (10YR 2/2) masses

of iron-manganese; about 8 percent subrounded

mixed gravel; common fine prominent strong

brown (7.5YR 5/8) redoximorphic concentrations;

slightly acid; gradual smooth boundary.

2C—72 to 80 inches; yellowish brown (10YR 5/6) and

grayish brown (10YR 5/2) clay loam; massive; firm;

common fine very dark brown (10YR 2/2) masses

of iron-manganese; about 8 percent subrounded

mixed gravel; common fine prominent strong

brown (7.5YR 5/8) redoximorphic concentrations;

slightly acid.

Range in Characteristics

Thickness of the mollic epipedon: 6 to 10 inches

Depth to till: 12 to 26 inches

Ap or A horizon:

Hue—10YR

Value—2 or 3

Chroma—2 or 3

Texture—loam

E and BE horizons:

Hue—10YR

Value—4

Chroma—2 or 3

Texture—loam

Bt horizon:

Hue—10YR

Value—4 or 5

Chroma—2 to 8

Texture—loam; a stone line is commonly at the

lower boundary of this horizon

2Bt horizon:

Hue—10YR or 7.5YR

Value—4 or 5

Chroma—2 to 8

Texture—loam, clay loam, or sandy clay loam

2BC or 2C horizon:

Hue—10YR or 7.5YR

Value—4 or 5

Chroma—2 to 8

Texture—loam, clay loam, or sandy clay loam

Bertram Series

Typical Pedon

Bertram fine sandy loam, 2 to 5 percent slopes, in a

grass field; 550 feet south and 50 feet east of the

northwest corner of sec. 1, T. 88 N., R. 11 W.; USGS

Jesup NW topographic quarter quadrangle; lat. 42

degrees 27 minutes 59.1 seconds N. and long. 92

degrees 05 minutes 02.2 seconds W., NAD 83:

A1—0 to 9 inches; very dark brown (10YR 2/2) fine

sandy loam, dark grayish brown (10YR 4/2) dry;

weak fine granular structure; very friable; many

very fine and fine roots; neutral; clear smooth

boundary.

A2—9 to 18 inches; very dark grayish brown (10YR

3/2) fine sandy loam, grayish brown (10YR 5/2)

dry; weak medium subangular blocky structure;

very friable; common very fine roots; slightly acid;

gradual smooth boundary.

Bw1—18 to 27 inches; brown (10YR 4/3) fine sandy

loam; weak medium subangular blocky structure;

very friable; common very fine roots; slightly acid;

gradual smooth boundary.

2Bw2—27 to 31 inches; dark yellowish brown (10YR

4/4) sandy clay loam; weak fine subangular blocky
Black Hawk County, Iowa 81

structure; friable; few very fine roots; slightly

alkaline; abrupt smooth boundary.

2C—31 to 34 inches; brown (10YR 4/3) sandy clay

loam; massive; friable; few very fine roots; slightly

alkaline; abrupt smooth boundary.

2R—34 inches; limestone bedrock.

Range in Characteristics

Thickness of the mollic epipedon: 10 to 20 inches

Depth to bedrock: 20 to 40 inches

Ap or A horizon:

Hue—10YR

Value—2 or 3

Chroma—2 or 3

Texture—fine sandy loam or sandy loam

Bw horizon:

Hue—10YR

Value—3 to 5

Chroma—3 or 4

Texture—fine sandy loam or sandy loam

2Bw horizon:

Hue—10YR

Value—4 or 5

Chroma—3 or 4

Texture—sandy clay loam or clay loam

2C horizon:

Hue—10YR

Value—4 or 5

Chroma—3 or 4

Texture—sandy clay loam or sandy loam

Billett Series

Typical Pedon

Billett sandy loam, 2 to 5 percent slopes, in a

cultivated field; 2,240 feet north and 2,500 feet west of

the southeast corner of sec. 28, T. 87 N., R. 11 W.;

USGS LaPorte City NE topographic quarter

quadrangle; lat. 42 degrees 19 minutes 04.4 seconds

N. and long. 92 degrees 07 minutes 56.4 seconds W.,

NAD 83:

Ap—0 to 7 inches; very dark grayish brown (10YR 3/2)

sandy loam, grayish brown (10YR 5/2) dry; weak

medium subangular blocky structure; very friable;

common very fine and fine roots; common very

fine and fine tubular pores; neutral; clear smooth

boundary.

BE—7 to 15 inches; brown (10YR 4/3) fine sandy

loam; moderate thin platy structure; very friable;

common very fine roots; common very fine and

fine interstitial and tubular pores; common faint

discontinuous dark brown (10YR 3/3) organic

coatings on faces of peds; neutral; clear smooth

boundary.

Bt1—15 to 24 inches; dark yellowish brown (10YR 4/4)

fine sandy loam; moderate fine and medium

subangular blocky structure; very friable; few very

fine roots; common very fine and fine interstitial

and tubular pores; few faint discontinuous brown

(10YR 4/3) clay films on faces of peds; moderately

acid; gradual smooth boundary.

Bt2—24 to 38 inches; strong brown (7.5YR 5/6) fine

sandy loam; moderate fine and medium

subangular blocky structure; very friable; few very

fine roots; many very fine and fine interstitial

pores; few distinct discontinuous brown (7.5YR

4/4) clay films on faces of peds; moderately acid;

gradual smooth boundary.

BC—38 to 51 inches; strong brown (7.5YR 5/6) and

grayish brown (10YR 5/3) fine sandy loam; weak

coarse subangular blocky structure; very friable;

many very fine and fine interstitial pores; few

prominent discontinuous dark yellowish brown

(10YR 4/4) clay films on faces of peds; moderately

acid; gradual smooth boundary.

C—51 to 80 inches; light yellowish brown (10YR 6/4)

loamy fine sand; single grain; loose; few medium

and coarse prominent strong brown (7.5YR 5/6)

redoximorphic concentrations; moderately acid.

Range in Characteristics

Ap or A horizon:

Hue—10YR or 7.5YR

Value—2 or 3

Chroma—1 to 3

Texture—fine sandy loam, sandy loam, or loam

BE horizon:

Hue—10YR or 7.5YR

Value—4 or 5

Chroma—2 to 4

Texture—sandy loam or fine sandy loam

Bt horizon:

Hue—10YR or 7.5YR

Value—4 to 6

Chroma—3 to 6

Texture—sandy loam, fine sandy loam, sandy clay

loam, or loam

BC and C horizons:

Hue—10YR or 7.5YR

Value—4 to 7
82 Soil Survey of

Chroma—3 to 6

Texture—loamy sand, fine sandy loam, sand,

loamy fine sand or fine sand or the gravelly

analogs of these textures

Burkhardt Series

Typical Pedon

Burkhardt sandy loam, in an area of BurkhardtBassett-Chelsea complex, 18 to 60 percent slopes; in

a wooded area; 2,100 feet west and 25 feet south of

the northeast corner of sec. 32, T. 90 N., R. 14 W.;

USGS New Hartford NE topographic quarter

quadrangle; lat. 42 degrees 34 minutes 12.64 seconds

N. and long. 92 degrees 31 minutes 20.80 seconds W.,

NAD 83:

A—0 to 7 inches; dark brown (10YR 3/3) sandy loam,

brown (10YR 5/3) dry; weak fine and medium

subangular blocky structure; very friable; common

very fine and fine roots; many very fine and fine

interstitial and tubular pores; slightly acid; clear

smooth boundary.

Bt—7 to 20 inches; brown (10YR 4/3) sandy loam;

weak fine and medium subangular blocky

structure; very friable; common very fine roots;

many very fine and fine interstitial and tubular

pores; few faint discontinuous dark grayish brown

(10YR 4/2) clay films; slightly acid; clear smooth

boundary.

2C1—20 to 32 inches; brown (7.5YR 5/4) sand; single

grain; loose; common very fine roots; moderately

acid; gradual smooth boundary.

2C2—32 to 80 inches; strong brown (7.5YR 5/6) sand;

single grain; loose; moderately acid.

Range in Characteristics

Thickness of the mollic epipedon: 7 to 20 inches

Depth to sandy material: 10 to 20 inches

A horizon:

Hue—10YR or 7.5YR

Value—2 or 3

Chroma—1 to 3

Texture—sandy loam, loam, or gravelly sandy

loam

Bt horizon:

Hue—10YR or 7.5YR

Value—3 or 4

Chroma—2 to 4

Texture—sandy loam or gravelly sandy loam

2C horizon:

Hue—10YR or 7.5YR

Value—4 to 6

Chroma—4 to 6

Texture—sand or coarse sand or the gravelly and

very gravelly analogs of these textures

Chelsea Series

Typical Pedon

Chelsea loamy fine sand, 2 to 5 percent slopes, in a

cultivated field; 340 feet south and 2,400 feet east of

the northwest corner of sec. 23, T. 90 N., R. 11 W.;

USGS Littleton SW topographic quarter quadrangle;

lat. 42 degrees 35 minutes 51.91 seconds N. and long.

92 degrees 06 minutes 44.87 seconds W., NAD 83:

Ap—0 to 6 inches; dark brown (10YR 3/3) loamy fine

sand, brown (10YR 5/3) dry; weak coarse

subangular blocky structure; very friable; common

fine roots; neutral; clear smooth boundary.

E1—6 to 11 inches; dark grayish brown (10YR 4/2)

and dark yellowish brown (10YR 4/4) fine sand;

single grain; loose; few very fine roots; slightly

acid; gradual smooth boundary.

E2—11 to 26 inches; yellowish brown (10YR 4/4) fine

sand; single grain; loose; few very fine roots;

strongly acid; clear smooth boundary.

E&Bt1—26 to 53 inches; light yellowish brown (10YR

6/4) and brownish yellow (10YR 6/6) fine sand (E);

single grain; loose; brown (7.5YR 4/4 and 5/4)

lamellae of fine sandy loam 1

/2 inch to 2 inches

thick (Bt); strongly acid; gradual smooth boundary.

E&Bt2—53 to 80 inches; pale brown (10YR 6/3) fine

sand (E); single grain; loose; brown (7.5YR 4/4

and 5/4) lamellae of fine sandy loam 1/2 inch to 2

inches thick (Bt); strongly acid.

Range in Characteristics

Ap or A horizon:

Hue—10YR

Value—3 or 4

Chroma—2 to 4

Texture—loamy fine sand or fine sand

E horizon:

Hue—10YR or 7.5YR

Value—4

Chroma—2 to 6

Texture—fine sand or loamy fine sand

E part of the E&Bt horizon:

Hue—7.5YR or 10YR

Value—4 to 6

Chroma—3 to 6

Texture—loamy fine sand or fine sand
Black Hawk County, Iowa 83

Bt part of the E&Bt horizon:

Hue—7.5YR or 10YR

Value—3 to 5

Chroma—3 to 6

Texture—sandy loam, loamy sand, fine sandy

loam, or loamy fine sand

Clyde Series

Typical Pedon

Clyde silty clay loam, 0 to 3 percent slopes, in a

cultivated field; 1,250 feet north and 250 feet east of

the southwest corner of sec. 9, T. 90 N., R. 14 W.; USGS

New Hartford NE topographic quarter quadrangle; lat. 42

degrees 37 minutes 02.46 seconds N. and long. 92

degrees 30 minutes 48.78 seconds W., NAD 83:

Ap—0 to 8 inches; black (10YR 2/1) silty clay loam,

very dark gray (10YR 3/1) dry; weak fine granular

structure; friable; common fine and medium roots;

common very fine tubular pores; common fine

prominent yellowish red (5YR 5/6) masses of iron;

slightly acid; abrupt smooth boundary.

A—8 to 18 inches; very dark gray (5Y 3/1) clay loam,

gray (5Y 4/1) dry; moderate fine subangular blocky

structure; friable; common fine roots; common

very fine tubular pores; common fine prominent

olive brown (2.5Y 4/4) redoximorphic

concentrations; slightly acid; clear smooth

boundary.

Bg1—18 to 28 inches; gray (2.5Y 4/1) clay loam;

moderate fine and medium subangular blocky

structure; friable; common very fine roots;

common very fine tubular pores; common fine

prominent yellowish brown (10YR 5/6)

redoximorphic concentrations; slightly acid;

gradual wavy boundary.

Bg2—28 to 36 inches; gray (2.5Y 5/1) clay loam;

moderate fine and medium subangular blocky

structure; friable; few very fine roots; common very

fine tubular pores; discontinuous stone line

consisting of rounded gravel and cobbles 1 to 6

inches in diameter (5 to 10 percent of this

horizon); common fine prominent yellowish brown

(10YR 5/6) redoximorphic concentrations; slightly

acid; gradual wavy boundary.

2BCg—36 to 41 inches; about 60 percent gray (2.5Y

5/1) and 40 percent yellowish brown (10YR 5/6)

loam; weak fine and medium subangular blocky

structure; firm; about 2 percent subrounded mixed

gravel; slightly acid; gradual wavy boundary.

2Cg—41 to 80 inches; about 70 percent grayish brown

(2.5Y 5/2) and 30 percent yellowish brown (10YR

5/6) loam; massive; firm; about 2 percent

subrounded mixed gravel; neutral.

Range in Characteristics

Thickness of the mollic epipedon: 18 to 24 inches

Depth to carbonates: 45 to more than 80 inches

Depth to till: 30 to 50 inches

Ap and A horizons:

Hue—10YR to 5Y or N

Value—2 or 3

Chroma—0 to 2

Texture—silty clay loam, clay loam, loam, or silt

loam

Bg horizon:

Hue—2.5Y or 5Y

Value—4 to 6

Chroma—1 to 8

Texture—loam or clay loam; a stone line is

commonly at the lower boundary of this horizon

2BCg and 2Cg horizons:

Hue—7.5YR to 5Y

Value—5 or 6

Chroma—1 to 8

Texture—loam or clay loam

Coland Series

Typical Pedon

Coland clay loam, 0 to 2 percent slopes, occasionally

flooded, in a cultivated field; 300 feet south and 1,450

feet east of the northwest corner of sec. 15, T. 90 N.,

R. 12 W.; USGS Waterloo North NE topographic

quarter quadrangle; lat. 42 degrees 36 minutes 47.8

seconds N. and long. 92 degrees 15 minutes 11.9

seconds W., NAD 83:

Ap—0 to 9 inches; black (10YR 2/1) clay loam, very

dark gray (10YR 3/1) dry; weak fine and medium

subangular blocky structure; friable; common very

fine and fine roots; common very fine tubular

pores; neutral; abrupt smooth boundary.

A1—9 to 20 inches; black (10YR 2/1) clay loam, very

dark gray (10YR 3/1) dry; weak fine subangular

blocky structure; friable; common very fine roots;

common very fine tubular pores; few fine

prominent brown (7.5YR 4/4) redoximorphic

concentrations; moderately acid; gradual smooth

boundary.

A2—20 to 31 inches; black (10YR 2/1) clay loam, dark

gray (10YR 3/1) dry; weak fine subangular blocky

structure; friable; few very fine roots; common very
84 Soil Survey of

fine tubular pores; few fine prominent brown

(7.5YR 4/4) redoximorphic concentrations;

moderately acid; clear smooth boundary.

A3—31 to 42 inches; very dark gray (10YR 3/1) clay

loam, dark gray (10YR 4/1) dry; weak fine and

medium subangular blocky structure; friable; few

very fine roots; few very fine tubular pores;

common fine prominent strong brown (7.5YR 4/6)

redoximorphic concentrations; moderately acid;

clear smooth boundary.

Cg1—42 to 55 inches; gray (2.5Y 5/1) clay loam;

massive; friable; few very fine tubular pores;

common fine and medium prominent strong brown

(7.5YR 5/6) redoximorphic concentrations; slightly

acid; clear smooth boundary.

2Cg2—55 to 80 inches; grayish brown (2.5Y 5/2)

loamy sand; single grain; loose; few fine and

medium black (10YR 2/1) masses of ironmanganese; many medium prominent yellowish

brown (10YR 5/6) redoximorphic concentrations;

neutral.

Range in Characteristics

Thickness of the mollic epipedon: More than 36 inches

Depth to carbonates: 48 to more than 60 inches

Ap and A horizons:

Hue—10YR

Value—2 or 3

Chroma—1

Texture—clay loam or silty clay loam

Cg horizon:

Hue—2.5Y, 5Y, or N

Value—2 to 5

Chroma—0 to 2

Texture—clay loam, loam, sandy loam, or loamy

sand

Colo Series

Typical Pedon

Colo silty clay loam, 0 to 2 percent slopes,

occasionally flooded, in a cultivated field; 1,360 feet

south and 1,280 feet east of the northwest corner of

sec. 6, T. 87 N., R. 14 W.; USGS Zaneta SE

topographic quarter quadrangle; lat. 42 degrees 22

minutes 51.6 seconds N. and long. 92 degrees 31

minutes 27.2 seconds W., NAD 83:

Ap—0 to 8 inches; black (10YR 2/1) silty clay loam,

very dark gray (10YR 3/1) dry; weak medium

subangular blocky structure; friable; common very

fine and fine roots; common very fine tubular

pores; neutral; abrupt smooth boundary.

A1—8 to 17 inches; black (10YR 2/1) silty clay loam,

very dark gray (10YR 3/1) dry; moderate fine

subangular blocky structure; friable; common very

fine roots; common very fine tubular pores;

neutral; clear smooth boundary.

A2—17 to 26 inches; very dark gray (10YR 3/1) silty

clay loam, dark gray (10YR 4/1) dry; moderate fine

subangular blocky structure; friable; few very fine

roots; common very fine tubular pores; neutral;

clear smooth boundary.

A3—26 to 40 inches; very dark gray (10YR 3/1) silty

clay loam, dark gray (10YR 4/1) dry; moderate fine

and medium subangular blocky structure; friable;

few very fine roots; common very fine tubular

pores; few fine prominent strong brown (7.5YR

4/6) redoximorphic concentrations; neutral;

gradual smooth boundary.

Bg—40 to 57 inches; dark gray (2.5Y 4/1) silty clay

loam; weak medium subangular blocky structure;

friable; common very fine tubular pores; common

fine prominent strong brown (7.5YR 4/6)

redoximorphic concentrations; neutral; gradual

smooth boundary.

Cg—57 to 80 inches; dark gray (2.5Y 4/1) silty clay

loam; massive; firm; many fine prominent strong

brown (7.5YR 4/6) redoximorphic concentrations;

neutral.

Range in Characteristics

Thickness of the mollic epipedon: More than 36 inches

Ap and A horizons:

Hue—10YR or N

Value—2 or 3

Chroma—0 or 1

Texture—silty clay loam or silt loam

Bg horizon:

Hue—10YR or 2.5Y

Value—3 or 4

Chroma—1

Texture—silty clay loam

Cg horizon:

Hue—10YR, 2.5Y, or 5Y

Value—3 to 6

Chroma—1 or 2

Texture—silty clay loam

Dells Series

Typical Pedon

Dells silt loam, 0 to 2 percent slopes, in a cultivated

field; 2,200 feet west and 2,400 feet south of the

northeast corner of sec. 12, T. 87 N., R. 13 W.; USGS
Black Hawk County, Iowa 85

Eagle Center NE topographic quarter quadrangle; lat.

42 degrees 21 minutes 47.82 seconds N. and long. 92

degrees 18 minutes 24.51 seconds W., NAD 83:

Ap—0 to 8 inches; very dark brown (10YR 2/2) silt

loam, dark grayish brown (10YR 4/2) dry; weak

medium subangular blocky structure; friable;

common very fine roots; common very fine tubular

pores; neutral; abrupt smooth boundary.

E—8 to 12 inches; dark grayish brown (10YR 4/2) silt

loam; weak medium subangular blocky structure

parting to weak fine granular; friable; common

very fine roots; common very fine tubular pores;

common faint discontinuous very dark grayish

brown (10YR 3/2) organic coatings on faces of

peds; moderately acid; clear smooth boundary.

BE—12 to 19 inches; brown (10YR 4/3) silt loam;

moderate fine and medium subangular blocky

structure; friable; few very fine roots; common very

fine tubular pores; common faint discontinuous

very dark grayish brown (10YR 3/2) organic

coatings on faces of peds; moderately acid; clear

smooth boundary.

Bt1—19 to 29 inches; brown (10YR 5/3) silty clay

loam; moderate fine and medium subangular

blocky structure; friable; few very fine roots;

common very fine tubular pores; few faint thin very

dark grayish brown (10YR 4/3) clay films on faces

of peds; few fine distinct yellowish brown (10YR

5/6) redoximorphic concentrations; few fine faint

grayish brown (10YR 5/2) redoximorphic

depletions; moderately acid; abrupt smooth

boundary.

Bt2—29 to 33 inches; brown (10YR 5/3) silt loam;

weak fine and medium subangular blocky

structure; friable; few faint thin very dark grayish

brown (10YR 4/3) clay films on faces of peds;

common fine faint dark yellowish brown (10YR

4/4) redoximorphic concentrations; few fine faint

light brownish gray (10YR 6/2) redoximorphic

depletions; moderately acid; gradual smooth

boundary.

2Bt3—33 to 36 inches; yellowish brown (10YR 5/3)

loam; weak fine and medium subangular blocky

structure; friable; few faint thin brown (10YR 5/3)

clay films on faces of peds; common fine faint dark

yellowish brown (10YR 4/4) redoximorphic

concentrations; few fine faint light brownish gray

(10YR 6/2) redoximorphic depletions; moderately

acid; clear smooth boundary.

2C1—36 to 44 inches; light brownish gray (10YR 6/2)

and yellowish brown (10YR 5/4) loamy sand;

single grain; loose; common medium prominent

brown (7.5YR 4/4) redoximorphic concentrations;

moderately acid; gradual smooth boundary.

2C2—44 to 80 inches; yellowish brown (10YR 5/4)

loamy sand; single grain; loose; few fine prominent

strong brown (7.5YR 5/6) redoximorphic

concentrations; about 12 percent gravel;

moderately acid.

Range in Characteristics

Depth to sandy material: 20 to 36 inches

Ap or A horizon:

Hue—10YR

Value—2 or 3

Chroma—1 or 2

Texture—silt loam

E horizon:

Hue—10YR

Value—4 or 5

Chroma—2 or 3

Texture—silt loam

BE horizon:

Hue—10YR or 7.5YR

Value—4 or 5

Chroma—3 to 5

Texture—silt loam

Bt horizon:

Hue—10YR or 7.5YR

Value—4 to 6

Chroma—3 to 5

Texture—silt loam or silty clay loam

2Bt horizon:

Hue—10YR or 7.5YR

Value—4 to 6

Chroma—3 to 5

Texture—sandy loam, loam, or sandy clay loam

2C horizon:

Hue—10YR or 7.5YR

Value—4 to 8

Chroma—2 to 4

Texture—loamy sand, sand, sandy loam, or loam

Dickinson Series

Typical Pedon

Dickinson fine sandy loam, 2 to 5 percent slopes, in a

cultivated field; 240 feet south and 2,200 feet west of

the northeast corner of sec. 7, T. 90 N., R. 13 W.;

USGS Waverly SE topographic quarter quadrangle;

lat. 42 degrees 37 minutes 40.3 seconds N. and long.

92 degrees 25 minutes 28 seconds W., NAD 83:

Ap—0 to 8 inches; very dark grayish brown (10YR 3/2)

fine sandy loam, dark grayish brown (10YR 4/2)
86 Soil Survey of

dry; weak medium subangular blocky structure;

very friable; common very fine and fine roots;

slightly acid; clear smooth boundary.

A—8 to 16 inches; very dark grayish brown (10YR 3/2)

fine sandy loam, dark grayish brown (10YR 4/2)

dry; weak fine and medium subangular blocky

structure; very friable; common very fine roots;

slightly acid; clear smooth boundary.

Bw—16 to 28 inches; dark yellowish brown (10YR 4/4)

fine sandy loam; weak medium subangular blocky

structure; very friable; few very fine roots;

moderately acid; gradual smooth boundary.

C1—28 to 49 inches; yellowish brown (10YR 5/4)

loamy fine sand; single grain; loose; slightly acid;

gradual smooth boundary.

C2—49 to 80 inches; brown (10YR 5/6) loamy sand;

single grain; loose; slightly acid.

Range in Characteristics

Thickness of the mollic epipedon: 12 to 24 inches

Depth to sandy material: 20 to 42 inches

Ap and A horizons:

Hue—10YR

Value—2 or 3

Chroma—1 to 3

Texture—fine sandy loam, sandy loam, or loam

Bw horizon:

Hue—10YR

Value—3 to 5

Chroma—2 to 4

Texture—sandy loam or fine sandy loam

C horizon:

Hue—10YR

Value—4 or 5

Chroma—3 to 6

Texture—loamy fine sand, loamy sand, fine sand,

or sand

Dinsdale Series

Typical Pedon

Dinsdale silty clay loam, 2 to 5 percent slopes, in a

cultivated field; 1,500 feet west and 1,680 feet north of

the southeast corner of sec. 25, T. 87 N., R. 13 W.;

USGS Eagle Center NE topographic quarter

quadrangle; lat. 42 degrees 18 minutes 59.76 seconds

N. and long. 92 degrees 18 minutes 15.17 seconds W.,

NAD 83:

Ap—0 to 7 inches; black (10YR 2/1) silty clay loam,

very dark gray (10YR 3/1) dry; weak fine and

medium subangular blocky structure; friable;

common very fine and fine roots; common very

fine tubular pores; moderately acid; abrupt smooth

boundary.

A—7 to 12 inches; very dark brown (10YR 2/2) silty

clay loam, dark grayish brown (10YR 4/2) dry;

moderate fine subangular blocky structure parting

to moderate fine granular; friable; common very

fine roots; common very fine tubular pores;

strongly acid; clear smooth boundary.

AB—12 to 19 inches; dark brown (10YR 3/3) silty clay

loam, brown (10YR 4/3) dry; moderate fine

subangular blocky structure; friable; few very fine

roots; common very fine tubular pores; strongly

acid; gradual smooth boundary.

Bt1—19 to 28 inches; brown (10YR 4/3) silty clay

loam; moderate fine subangular blocky structure;

friable; few very fine roots; common very fine

tubular pores; few distinct dark brown (10YR 3/3)

clay films on vertical faces of peds; strongly acid;

clear smooth boundary.

Bt2—28 to 34 inches; dark yellowish brown (10YR 4/4)

silty clay loam; weak fine and medium subangular

blocky structure; friable; common very fine tubular

pores; few distinct brown (10YR 4/3) clay films on

vertical faces of peds; discontinuous stone line

consisting of rounded gravel and cobbles 1 to 6

inches in diameter (5 to 10 percent of this

horizon); strongly acid; clear smooth boundary.

2Bt3—34 to 46 inches; about 50 percent brown (10YR

5/3) and 50 percent yellowish brown (10YR 5/6)

loam; weak coarse subangular blocky structure;

firm; few distinct brown (10YR 4/3) clay films on

vertical faces of peds; about 3 percent

subrounded gravel; common fine distinct gray

(10YR 6/1) redoximorphic depletions; moderately

acid; gradual smooth boundary.

2BC—46 to 58 inches; about 60 percent yellowish

brown (10YR 5/4) and 40 percent yellowish brown

(10YR 5/6) loam; weak coarse prismatic structure;

firm; about 3 percent subrounded gravel; common

fine distinct gray (10YR 6/1) redoximorphic

depletions; neutral; gradual smooth boundary.

2C—58 to 80 inches; yellowish brown (10YR 5/6)

loam; massive; firm; about 3 percent subrounded

gravel; common fine and medium prominent gray

(10YR 6/1) redoximorphic depletions; strongly

effervescent; moderately alkaline.

Range in Characteristics

Thickness of the mollic epipedon: 10 to 20 inches

Depth to till: 20 to 40 inches

Ap, A, and AB horizons:

Hue—10YR

Value—2 or 3
Black Hawk County, Iowa 87

Chroma—1 to 3

Texture—silty clay loam or silt loam

Bt horizon:

Hue—10YR

Value—3 or 4

Chroma—3 or 4

Texture—silty clay loam; a stone line is commonly

at the lower boundary of this horizon

2Bt and 2BC horizons:

Hue—10YR or 7.5YR

Value—4 or 5

Chroma—3 to 6

Texture—loam or clay loam

2C horizon:

Hue—10YR or 7.5YR

Value—4 or 5

Chroma—4 to 8

Texture—loam or clay loam

Taxadjunct features: The Dinsdale soil in map unit

377C2 is a taxadjunct because the surface layer

does not meet the requirements for a mollic

epipedon.

Dinsmore Series

Typical Pedon

Dinsmore silty clay loam, 2 to 5 percent slopes, in a

cultivated field; 800 feet east and 300 feet north of the

southwest corner of sec. 30, T. 87 N., R. 14 W.; USGS

Reinbeck NE topographic quarter quadrangle; lat. 42

degrees 18 minutes 59.76 seconds N. and long. 92

degrees 18 minutes 15.17 seconds W., NAD 83:

Ap—0 to 8 inches; very dark brown (10YR 2/2) silty

clay loam, very dark grayish brown (10YR 3/2)

dry; weak fine granular structure; friable; common

fine roots; common very fine tubular pores; slightly

acid; clear smooth boundary.

A1—8 to 12 inches; very dark brown (10YR 2/2) silty

clay loam, very dark grayish brown (10YR 3/2)

dry; weak very fine subangular blocky structure;

friable; common fine roots; common very fine

tubular pores; moderately acid; clear smooth

boundary.

A2—12 to 16 inches; very dark grayish brown (10YR

3/2) silty clay loam, dark grayish brown (10YR 4/2)

dry; moderate fine subangular blocky structure;

friable; common very fine roots; common very fine

tubular pores; moderately acid; gradual smooth

boundary.

Bt1—16 to 22 inches; brown (10YR 4/3) silty clay

loam; moderate fine and medium subangular

blocky structure; friable; few very fine roots;

common very fine tubular pores; few distinct dark

grayish brown (10YR 4/2) clay films on vertical

faces of peds; moderately acid; gradual smooth

boundary.

Bt2—22 to 30 inches; brown (10YR 4/3) silty clay

loam; moderate medium subangular blocky

structure; friable; few very fine roots; common very

fine tubular pores; few distinct dark grayish brown

(10YR 4/2) clay films on vertical faces of peds;

strongly acid; gradual smooth boundary.

Bt3—30 to 36 inches; brown (10YR 5/3) silty clay

loam; weak medium subangular blocky structure;

friable; few very fine roots; common very fine

tubular pores; few distinct grayish brown (10YR

5/2) clay films on vertical faces of peds;

moderately acid; gradual smooth boundary.

Bt4—36 to 48 inches; yellowish brown (10YR 5/4) silty

clay loam; weak medium subangular blocky

structure; friable; common very fine tubular pores;

few distinct grayish brown (10YR 5/2) clay films on

vertical faces of peds; discontinuous stone line

consisting of rounded gravel and cobbles 1 to 6

inches in diameter (5 to 10 percent of this

horizon); slightly acid; gradual smooth boundary.

2C—48 to 80 inches; yellowish brown (10YR 5/4)

loam; massive; friable; few very fine tubular pores;

common fine and medium distinct grayish brown

(10YR 5/2) redoximorphic depletions; common

medium distinct (7.5YR 5/6) redoximorphic

concentrations; slightly alkaline.

Range in Characteristics

Thickness of the mollic epipedon: 10 to 20 inches

Depth to till: 40 to 60 inches

Depth to carbonates: 40 to more than 80 inches

Ap and A horizons:

Hue—10YR

Value—2 or 3

Chroma—1 to 3

Texture—silty clay loam or silt loam

Bt horizon:

Hue—10YR

Value—4 or 5

Chroma—3 to 6

Texture—silty clay loam; a stone line is commonly

at the lower boundary of this horizon

2BC or 2C horizon:

Hue—10YR or 7.5YR

Value—4 or 5

Chroma—3 to 8

Texture—loam, clay loam, sandy loam, or sandy

clay loam
88 Soil Survey of

Donnan Series

Typical Pedon

Donnan loam, 2 to 5 percent slopes, in a cultivated

field; 1,290 feet south and 600 feet east of the

northwest corner of sec. 35, T. 89 N., R. 11 W.; USGS

Jesup NW topographic quarter quadrangle; lat. 42

degrees 28 minutes 45.7 seconds N. and long. 92

degrees 07 minutes 08.1 seconds W., NAD 83:

Ap—0 to 8 inches; very dark brown (10YR 2/2) loam,

very dark grayish brown (10YR 3/2) dry; weak

medium subangular blocky structure; friable;

common very fine and fine roots; common very

fine tubular pores; neutral; abrupt smooth

boundary.

E—8 to 13 inches; dark grayish brown (10YR 4/2)

loam; weak fine and medium subangular blocky

structure; friable; common very fine roots;

common very fine tubular pores; slightly acid; clear

smooth boundary.

Bt—13 to 23 inches; brown (10YR 4/3) loam; weak

fine and medium subangular blocky structure;

friable; few very fine roots; few very fine tubular

pores; few faint discontinuous dark grayish brown

(10YR 4/2) clay films on faces of peds; few fine

distinct dark grayish brown (2.5Y 4/2)

redoximorphic depletions; strongly acid; clear

smooth boundary.

2Btg1—23 to 36 inches; gray (2.5Y 5/1) clay;

moderate fine and medium subangular blocky

structure; very firm; common faint discontinuous

dark gray (2.5Y 4/1) clay films on faces of peds;

few fine prominent strong brown (7.5YR 5/6)

redoximorphic concentrations; strongly acid;

gradual smooth boundary.

2Btg2—36 to 56 inches; gray (2.5Y 5/1) clay;

moderate fine and medium subangular blocky

structure; very firm; common faint discontinuous

dark gray (2.5Y 4/1) clay films on faces of peds;

common fine and medium prominent strong brown

(7.5YR 5/6) redoximorphic concentrations;

strongly acid; clear smooth boundary.

2Btg3—56 to 67 inches; gray (2.5Y 5/2) clay; weak

medium subangular blocky structure; firm; few

faint discontinuous dark gray (2.5Y 4/1) clay films

on faces of peds; common fine and medium

prominent strong brown (7.5YR 5/6)

redoximorphic concentrations; moderately acid;

gradual smooth boundary.

2Cg—67 to 80 inches; grayish brown (2.5Y 5/2) loam;

massive; friable; common fine and medium

prominent strong brown (7.5YR 5/6)

redoximorphic concentrations; moderately acid.

Range in Characteristics

Depth to the clayey paleosol: 20 to 36 inches

Ap or A horizon:

Hue—10YR

Value—2 or 3

Chroma—1 or 2

Texture—loam or silt loam

E horizon:

Hue—10YR

Value—4 or 5

Chroma—2 or 3

Texture—loam or silt loam

Bt horizon:

Hue—10YR or 2.5Y

Value—4 or 5

Chroma—3 or 4

Texture—clay loam, loam, or silty clay loam

2Btg horizon:

Hue—2.5Y or 5Y

Value—3 to 6

Chroma—1 or 2

Texture—silty clay or clay

2Cg horizon:

Hue—7.5YR, 10YR, or 2.5Y

Value—4 or 5

Chroma—2 to 6

Texture—loam or clay loam

Dunkerton Series

Typical Pedon

Dunkerton sandy loam, 2 to 5 percent slopes, in a

cultivated field; 640 feet south and 2,540 feet east of

the northwest corner of sec. 36, T. 90 N., R. 11 W.;

USGS Littleton NW topographic quarter quadrangle;

lat. 42 degrees 34 minutes 04.9 seconds N. and long.

92 degrees 05 minutes 31.5 seconds W., NAD 83:

Ap—0 to 9 inches; very dark grayish brown (10YR 3/2)

sandy loam, dark grayish brown (10YR 4/2) dry;

weak fine granular structure; friable; common fine

roots; common fine tubular pores; neutral; abrupt

smooth boundary.

BE—9 to 15 inches; about 50 percent dark grayish

brown (10YR 4/2) and 50 percent brown (10YR

4/3) sandy loam; weak thick platy and weak fine

subangular blocky structure; friable; common fine

roots; common fine tubular pores; slightly acid;

clear smooth boundary.

Bt1—15 to 25 inches; brown (7.5YR 4/4) sandy loam;
Black Hawk County, Iowa 89

weak fine subangular blocky structure; friable;

common very fine roots; common fine tubular

pores; few distinct dark grayish brown (10YR 4/2)

clay films on vertical faces of peds; discontinuous

stone line consisting of rounded gravel and

cobbles 1 to 6 inches in diameter (5 to 10 percent

of this horizon); common fine distinct grayish

brown (10YR 5/2) redoximorphic depletions;

slightly acid; abrupt smooth boundary.

2Bt2—25 to 36 inches; about 60 percent strong brown

(7.5YR 5/6) and 40 percent light brownish gray

(10YR 6/2) sandy clay loam; weak fine and

medium subangular blocky structure; firm; few

very fine roots; few distinct dark grayish brown

(10YR 4/2) clay films on vertical faces of peds;

common fine very dark brown (10YR 2/2) masses

of iron-manganese; about 2 percent subrounded

mixed gravel; moderately acid; gradual smooth

boundary.

2Bt3—36 to 49 inches; about 50 percent strong brown

(7.5YR 5/6) and 50 percent light brownish gray

(10YR 6/2) loam; weak fine prismatic structure;

firm; few distinct dark grayish brown (10YR 4/2)

clay films on vertical faces of peds; common fine

very dark brown (10YR 2/2) masses of ironmanganese; about 2 percent subrounded mixed

gravel; common fine distinct yellowish brown

(10YR 5/6) redoximorphic concentrations; strongly

acid; gradual wavy boundary.

2C—49 to 80 inches; about 50 percent strong brown

(7.5YR 5/6) and 50 percent pinkish gray (7.5YR

6/2) loam; massive; firm; common fine very dark

brown (10YR 2/2) masses of iron-manganese;

about 2 percent subrounded mixed gravel;

common fine prominent reddish brown (5YR 4/4)

redoximorphic concentrations; moderately acid.

Range in Characteristics

Depth to till: 24 to 36 inches

Ap or A horizon:

Hue—10YR

Value—2 or 3

Chroma—2 or 3

Texture—sandy loam, fine sandy loam, loamy

sand, or loamy fine sand

BE horizon:

Hue—10YR

Value—4 or 5

Chroma—2 to 4

Texture—sandy loam, fine sandy loam, loamy

sand, or loamy fine sand

Bt horizon:

Hue—10YR or 7.5YR

Value—4 to 6

Chroma—2 to 6

Texture—sandy clay loam or sandy loam; a stone

line is commonly at the lower boundary of this

horizon

2Bt horizon:

Hue—2.5Y, 10YR, 7.5YR, or 5YR

Value—4 to 6

Chroma—1 to 8

Texture—loam, clay loam, or sandy clay loam

2BC or 2C horizon:

Hue—2.5Y, 10YR, 7.5YR, or 5YR

Value—4 to 6

Chroma—1 to 8

Texture—loam, clay loam, or sandy clay loam

Ely Series

Typical Pedon

Ely silty clay loam, in an area of Colo-Ely complex, 2

to 5 percent slopes, in a cultivated field; 890 feet north

and 120 feet west of the southeast corner of sec. 14, T.

87 N., R. 13 W.; USGS Eagle Center NW topographic

quarter quadrangle; lat. 42 degrees 20 minutes 36.5

seconds N. and long. 92 degrees 19 minutes 07.3

seconds W., NAD 83:

Ap—0 to 8 inches; black (10YR 2/1) silty clay loam,

very dark gray (10YR 3/1) dry; weak fine and

medium subangular blocky structure parting to

weak fine granular; friable; common very fine and

fine roots; common very fine tubular pores;

neutral; abrupt smooth boundary.

A1—8 to 17 inches; black (10YR 2/1) silty clay loam,

very dark gray (10YR 3/1) dry; weak fine

subangular blocky structure parting to moderate

fine and medium granular; friable; common very

fine roots; common very fine tubular pores;

neutral; clear smooth boundary.

A2—17 to 28 inches; very dark gray (10YR 3/1) silty

clay loam, dark gray (10YR 4/1) dry; moderate fine

subangular blocky structure parting to moderate

fine and medium granular; friable; common very

fine roots; common very fine tubular pores;

neutral; clear smooth boundary.

Bg1—28 to 37 inches; dark grayish brown (10YR 4/2)

silty clay loam; moderate fine and medium

subangular blocky structure; friable; few very fine

roots; common very fine tubular pores; few fine

prominent strong brown (7.5YR 5/6)

redoximorphic concentrations; neutral; clear

smooth boundary.

Bg2—37 to 48 inches; grayish brown (10YR 5/2) silty
90 Soil Survey of

clay loam; weak fine and medium subangular

blocky structure; friable; few very fine roots;

common very fine tubular pores; common fine and

medium prominent strong brown (7.5YR 5/6)

redoximorphic concentrations; neutral; clear

smooth boundary.

BCg—48 to 63 inches; grayish brown (2.5Y 5/2) silty

clay loam; weak medium subangular blocky

structure; friable; common very fine tubular pores;

common medium prominent strong brown (7.5YR

5/6) redoximorphic concentrations; neutral; clear

smooth boundary.

Cg—63 to 80 inches; grayish brown (2.5Y 5/2),

stratified silty clay loam and sandy loam; massive;

friable; few very fine tubular pores; many medium

prominent strong brown (7.5YR 5/6)

redoximorphic concentrations; neutral.

Range in Characteristics

Thickness of the mollic epipedon: 20 to 30 inches

Ap and A horizons:

Hue—10YR

Value—2 or 3

Chroma—1 or 2

Texture—silty clay loam or silt loam

Bg horizon:

Hue—2.5Y or 10YR

Value—4 or 5

Chroma—2

Texture—silty clay loam or silt loam

BCg and Cg horizons:

Hue—2.5Y or 10YR

Value—4 or 5

Chroma—1 or 2

Texture—silty clay loam, silt loam, clay loam,

loam, or sandy loam

Emeline Series

Typical Pedon

Emeline loam, 2 to 9 percent slopes, in a grass field;

260 feet north and 1,100 feet east of the southwest

corner of sec. 23, T. 87 N., R. 12 W.; USGS LaPorte

City NW topographic quarter quadrangle; lat. 42

degrees 19 minutes 38.5 seconds N. and long. 92

degrees 12 minutes 59.2 seconds W., NAD 83:

A—0 to 9 inches; very dark brown (10YR 2/2) loam,

dark grayish brown (10YR 4/2) dry; moderate fine

granular structure; friable; many very fine and fine

roots; many very fine tubular pores; abrupt wavy

boundary.

2R—9 inches; limestone bedrock.

Range in Characteristics

Thickness of the mollic epipedon: 4 to 10 inches

Depth to bedrock: 4 to 10 inches

A horizon:

Hue—10YR or 7.5YR

Value—2 or 3

Chroma—1 to 3

Texture—loam, clay loam, or silt loam

Finchford Series

Typical Pedon

Finchford loamy sand, 0 to 2 percent slopes, in a

cultivated field; 1,700 feet south and 1,450 feet west of

the northeast corner of sec. 13, T. 87 N., R. 12 W.;

USGS LaPorte City NE topographic quarter

quadrangle; lat. 42 degrees 21 minutes 3.4 seconds N.

and long. 92 degrees 11 minutes 10.9 seconds W.,

NAD 83:

Ap—0 to 8 inches; very dark brown (10YR 2/2) loamy

sand, dark grayish brown (10YR 4/2) dry; weak

fine granular structure parting to single grain; very

friable; common very fine and fine roots; about 4

percent fine gravel; neutral; clear smooth

boundary.

A1—8 to 18 inches; very dark grayish brown (10YR

3/2) loamy sand, dark grayish brown (10YR 4/2)

dry; weak fine subangular blocky structure parting

to single grain; very friable; common very fine

roots; about 8 percent fine gravel; slightly acid;

clear smooth boundary.

A2—18 to 30 inches; dark brown (7.5YR 3/2) sand,

brown (7.5YR 5/2) dry; single grain; loose; about

12 percent fine gravel; strongly acid; gradual

smooth boundary.

C1—30 to 55 inches; brown (7.5YR 4/4) gravelly

coarse sand; single grain; loose; about 20 percent

fine gravel; moderately acid; gradual smooth

boundary.

C2—55 to 70 inches; pale brown (10YR 6/3) coarse

sand; single grain; loose; about 10 percent fine

gravel; moderately acid; gradual smooth boundary.

C3—70 to 80 inches; pale brown (10YR 6/3) gravelly

coarse sand; single grain; loose; about 16 percent

fine gravel; moderately acid.
Black Hawk County, Iowa 91

Range in Characteristics

Thickness of the mollic epipedon: 10 to 34 inches

Ap and A horizons:

Hue—10YR or 7.5YR

Value—2 or 3

Chroma—1 or 2

Texture—loamy sand, sand, or sandy loam

Bw horizon (if it occurs):

Hue—10YR or 7.5YR

Value—3 to 5

Chroma—2 or 3

Texture—sand, coarse sand, loamy coarse sand,

or loamy sand or the gravelly analogs of these

textures

C horizon:

Hue—7.5YR or 10YR

Value—3 to 6

Chroma—3 to 6

Texture—coarse sand, sand, gravelly coarse

sand, or gravelly sand

Flagler Series

Typical Pedon

Flagler sandy loam, 0 to 2 percent slopes, in a

cultivated field; 40 feet north and 1,040 feet west of the

southeast corner of sec. 28, T. 90 N., R. 14 W.; USGS

New Hartford NE topographic quarter quadrangle; lat.

42 degrees 34 minutes 40 seconds N. and long. 92

degrees 30 minutes 01 second W., NAD 83:

Ap—0 to 8 inches; very dark brown (10YR 2/2) sandy

loam, dark grayish brown (10YR 4/2) dry; weak

fine granular structure; friable; common fine roots;

common fine interstitial and tubular pores; slightly

acid; abrupt smooth boundary.

A—8 to 20 inches; very dark grayish brown (10YR 3/2)

and very dark brown (10YR 2/2) sandy loam, dark

grayish brown (10YR 4/2) dry; weak fine granular

structure; friable; common fine roots; common fine

interstitial and tubular pores; moderately acid;

clear smooth boundary.

Bw—20 to 28 inches; brown (10YR 4/3) and dark

brown (10YR 3/3) sandy loam; weak fine granular

structure; friable; common fine roots; common fine

interstitial and tubular pores; moderately acid;

clear smooth boundary.

2BC—28 to 35 inches; dark yellowish brown (10YR

4/4 and 3/4) loamy sand; weak fine granular

structure; very friable; common fine roots;

common fine interstitial and tubular pores;

moderately acid; clear smooth boundary.

2C1—35 to 42 inches; light yellowish brown (10YR

6/4) and brownish yellow (10YR 6/6) sand; single

grain; loose; about 5 percent subrounded mixed

gravel; moderately acid; gradual smooth boundary.

2C2—42 to 80 inches; light yellowish brown (10YR

6/4) and brownish yellow (10YR 6/6) gravelly

coarse sand; single grain; loose; about 30 percent

subrounded mixed gravel; slightly acid.

Range in Characteristics

Thickness of the mollic epipedon: 12 to 24 inches

Depth to sandy material: 20 to 36 inches

Ap and A horizons:

Hue—10YR

Value—2 or 3

Chroma—1 or 2

Texture—sandy loam or fine sandy loam

Bw horizon:

Hue—10YR or 7.5YR

Value—3 to 5

Chroma—3 to 6

Texture—sandy loam

2BC horizon:

Hue—10YR or 7.5YR

Value—3 to 5

Chroma—4 to 6

Texture—loamy sand or sand

2C horizon:

Hue—10YR

Value—4 to 6

Chroma—4 to 6

Texture—loamy sand, sand, or coarse sand or the

gravelly analogs of these textures

Floyd Series

Typical Pedon

Floyd loam, in an area of Clyde-Floyd complex, 1 to 4

percent slopes, in a grass fence row; 1,850 feet west

and 450 feet north of the southeast corner of sec. 14,

T. 88 N., R. 13 W.; USGS Waterloo South SW

topographic quarter quadrangle; lat. 42 degrees 25

minutes 47.2 seconds N. and long. 92 degrees 19

minutes 28.8 seconds W., NAD 83:

A1—0 to 11 inches; black (10YR 2/1) loam, very dark

gray (10YR 3/1) dry; weak fine granular structure;

friable; common fine roots; common very fine and

fine tubular pores; neutral; clear smooth boundary.

A2—11 to 18 inches; very dark brown (10YR 2/2) and

very dark grayish brown (10YR 3/2) loam, dark

grayish brown (10YR 4/2) dry; weak fine
92 Soil Survey of

subangular blocky and weak fine granular

structure; friable; common fine roots; common

very fine and fine tubular pores; neutral; clear

smooth boundary.

Bw1—18 to 25 inches; brown (10YR 4/2) loam; weak

fine subangular blocky structure; friable; common

fine roots; common very fine and fine tubular

pores; neutral; clear smooth boundary.

Bw2—25 to 34 inches; brown (10YR 4/2) loam; weak

fine subangular blocky structure; friable; common

fine roots; common very fine and fine tubular

pores; discontinuous stone line consisting of

rounded gravel and cobbles 1 to 6 inches in

diameter (5 to 10 percent of this horizon); common

fine prominent strong brown (7.5YR 5/6)

redoximorphic concentrations; neutral; gradual

smooth boundary.

2Bw3—34 to 46 inches; yellowish brown (10YR 5/4)

and grayish brown (10YR 5/2) loam; weak fine and

medium subangular blocky structure; firm;

common fine roots; common very fine and fine

tubular pores; common fine black (10YR 2/1)

masses of iron-manganese accumulation; about 5

percent subrounded mixed gravel; neutral; gradual

wavy boundary.

2Bw4—46 to 54 inches; yellowish brown (10YR 5/6)

and grayish brown (10YR 5/2) loam; weak medium

subangular blocky structure; firm; common fine

roots; common fine black (10YR 2/1) masses of

iron-manganese; about 5 percent subrounded

mixed gravel; neutral; gradual wavy boundary.

2C—54 to 80 inches; yellowish brown (10YR 5/6) and

grayish brown (10YR 5/2) loam; massive; firm;

common fine black (10YR 2/1) masses of ironmanganese; about 2 percent subrounded mixed

gravel; common fine prominent strong brown

(7.5YR 5/8) redoximorphic concentrations; slightly

alkaline.

Range in Characteristics

Thickness of the mollic epipedon: 16 to 24 inches

Depth to till: 32 to 46 inches

Ap or A horizon:

Hue—10YR

Value—2 or 3

Chroma—1 or 2

Texture—loam, clay loam, silty clay loam, or silt

loam

Bw horizon:

Hue—10YR or 2.5Y

Value—4 or 5

Chroma—2 or 3

Texture—loam, sandy clay loam, or sandy loam; a

stone line is commonly at the lower boundary of

this horizon

2Bw horizon:

Hue—7.5YR, 10YR, or 2.5Y

Value—4 or 5

Chroma—2 to 8

Texture—loam, clay loam, or sandy clay loam

2C horizon:

Hue—7.5YR, 10YR, or 2.5Y

Value—4 or 5

Chroma—2 to 8

Texture—loam, clay loam, or sandy clay loam

Franklin Series

Typical Pedon

Franklin silt loam, 1 to 3 percent slopes, in a cultivated

field; 700 feet south and 480 feet west of the northeast

corner of sec. 24, T. 90 N., R. 11 W.; USGS Littleton

NW topographic quarter quadrangle; lat. 42 degrees

35 minutes 48.1 seconds N. and long. 92 degrees 05

minutes 0.7 second W., NAD 83:

Ap—0 to 8 inches; very dark gray (10YR 3/1) silt loam,

dark gray (10YR 4/1) dry; weak fine granular

structure; friable; common very fine and fine roots;

common very fine tubular pores; slightly acid;

abrupt smooth boundary.

E—8 to 14 inches; dark grayish brown (10YR 4/2) silt

loam; weak thin platy structure; friable; common

very fine roots; common very fine tubular pores;

moderately acid; clear smooth boundary.

Btg—14 to 26 inches; grayish brown (10YR 5/2) and

brown (10YR 5/3) silty clay loam; weak fine

subangular blocky structure; friable; few very fine

roots; common very fine tubular pores; common

discontinuous dark grayish brown (10YR 4/2) clay

films; strongly acid; clear smooth boundary.

2Bt—26 to 42 inches; 60 percent yellowish brown

(10YR 5/6) and 40 percent gray (10YR 5/2) loam;

weak fine and medium subangular blocky

structure; firm; few very fine roots; few very fine

tubular pores; common discontinuous dark grayish

brown (10YR 4/2) clay films; strongly acid; fine

very dark brown (7.5YR 2/2) masses of ironmanganese; strongly acid; gradual smooth

boundary.

2BC—42 to 52 inches; 80 percent yellowish brown

(10YR 5/6) and 20 percent gray (10YR 5/2) loam;

weak coarse prismatic structure; firm; fine very

dark brown (7.5YR 2/2) masses of ironmanganese; slightly acid; gradual smooth

boundary.
Black Hawk County, Iowa 93

2C1—52 to 62 inches; 60 percent yellowish brown

(10YR 5/6) and 40 percent gray (10YR 5/2) loam;

massive; very firm; fine very dark brown (7.5YR

2/2) masses of iron-manganese; slightly

effervescent; slightly alkaline; clear smooth

boundary.

2C2—62 to 80 inches; 80 percent yellowish brown

(10YR 5/6) and 20 percent gray (10YR 5/2) loam;

massive; very firm; fine very dark brown (7.5YR

2/2) masses of iron-manganese; strongly

effervescent; moderately alkaline.

Range in Characteristics

Depth to till: 24 to 40 inches

Ap or A horizon:

Hue—10YR

Value—2 or 3

Chroma—1 or 2

Texture—silt loam

E horizon:

Hue—10YR

Value—4 or 5

Chroma—1 or 2

Texture—silt loam

Btg horizon:

Hue—2.5Y or 10YR

Value—4 or 5

Chroma—2 to 4

Texture—silty clay loam

2Bt horizon:

Hue—7.5YR or 10YR

Value—4 to 6

Chroma—2 to 8

Texture—loam, clay loam, or sandy clay loam

2BC and 2C horizons:

Hue—7.5YR or 10YR

Value—4 to 6

Chroma—2 to 8

Texture—loam, clay loam, or sandy clay loam

Hayfield Series

Typical Pedon

Hayfield loam, 24 to 40 inches to sand and gravel, 0 to

2 percent slopes, in a cultivated field; 130 feet north

and 400 feet west of the southeast corner of sec. 22, T.

90 N., R. 11 W.; USGS Littleton NW topographic

quarter quadrangle; lat. 42 degrees 55 minutes 04.1

seconds N. and long. 92 degrees 07 minutes 25.9

seconds W., NAD 83:

Ap—0 to 9 inches; very dark brown (10YR 2/2) loam,

dark grayish brown (10YR 4/2) dry; weak fine

granular structure; friable; common fine roots;

common fine interstitial and tubular pores;

moderately acid; abrupt smooth boundary.

BE—9 to 13 inches; 50 percent brown (10YR 4/3) and

50 percent dark brown (10YR 3/3) loam; weak fine

and medium subangular blocky structure; friable;

common fine roots; common fine interstitial and

tubular pores; moderately acid; clear smooth

boundary.

Bt—13 to 25 inches; dark grayish brown (10YR 4/3)

clay loam; moderate medium subangular blocky

structure; friable; common fine roots; common fine

interstitial and tubular pores; few faint patchy very

dark grayish brown (10YR 3/2) clay films on faces

of peds; few fine faint dark grayish brown (2.5Y

4/2) redoximorphic depletions and common fine

prominent strong brown (7.5YR 5/6 and 5/8)

redoximorphic concentrations; moderately acid;

abrupt smooth boundary.

2BC—25 to 33 inches; brown (10YR 5/3) gravelly

sandy loam; single grain; loose; about 30 percent

subrounded mixed gravel; many fine distinct

yellowish brown (10YR 5/6) redoximorphic

concentrations; strongly acid; gradual smooth

boundary.

2C1—33 to 38 inches; yellowish brown (10YR 5/6)

gravelly loamy sand; single grain; loose; about 15

percent subrounded mixed gravel; strongly acid;

gradual smooth boundary.

2C2—38 to 45 inches; 60 percent strong brown

(7.5YR 5/6) and 40 percent grayish brown (10YR

5/2) gravelly sand; single grain; loose; about 15

percent subrounded mixed gravel; strongly acid;

gradual wavy boundary.

2C3—45 to 56 inches; light brownish gray (10YR 6/2)

coarse sand; single grain; loose; about 5 percent

subrounded mixed gravel; common medium and

coarse prominent strong brown (7.5YR 5/8)

redoximorphic concentrations; moderately acid;

gradual wavy boundary.

2C4—56 to 80 inches; 60 percent grayish brown

(10YR 5/2) and 40 percent light brownish gray

(10YR 6/2) gravelly coarse sand; about 25 percent

subrounded mixed gravel; moderately acid.

Range in Characteristics

Depth to sand and gravel: 20 to 40 inches

Ap or A horizon:

Hue—10YR

Value—2 or 3

Chroma—1 or 2

Texture—loam or silt loam
94 Soil Survey of

BE or E horizon:

Hue—10YR

Value—4 or 5

Chroma—1 or 2

Texture—loam or silt loam

Bt horizon:

Hue—10YR or 2.5Y

Value—4 or 5

Chroma—3 or 4

Texture—clay loam, loam, sandy clay loam, silt

loam, or silty clay loam

2BC horizon:

Hue—10YR or 2.5Y

Value—4 to 6

Chroma—2 to 6

Texture—sandy loam or gravelly sandy loam

2C horizon:

Hue—7.5YR, 10YR, or 2.5Y

Value—4 to 6

Chroma—2 to 6

Texture—stratified coarse sand, loamy coarse

sand, sand, or loamy sand or the gravelly

analogs of these textures

Kenyon Series

Typical Pedon

Kenyon loam, 2 to 5 percent slopes, in a cultivated

field; 400 feet north and 1,215 feet west of the

southeast corner of sec. 14, T. 88 N., R. 13 W.; USGS

Waterloo South SW topographic quarter quadrangle;

lat. 42 degrees 25 minutes 48.5 seconds N. and long.

92 degrees 19 minutes 17.3 seconds W., NAD 83:

Ap—0 to 8 inches; black (10YR 2/1) loam, very dark

gray (10YR 3/1) dry; weak fine granular structure;

friable; common fine and medium roots; neutral;

clear smooth boundary.

A—8 to 14 inches; black (10YR 2/1) and very dark

brown (10YR 2/2) loam, dark gray (10YR 4/1) dry;

weak fine granular structure; friable; common fine

roots; neutral; clear smooth boundary.

AB—14 to 20 inches; very dark brown (10YR 2/2) and

very dark grayish brown (10YR 3/2) loam, dark

grayish brown (10YR 4/2) dry; weak fine

subangular blocky and weak fine granular

structure; friable; common fine roots;

discontinuous stone line consisting of rounded

gravel and cobbles 1 to 6 inches in diameter (5 to

10 percent of this horizon); slightly acid; clear

smooth boundary.

2Bw1—20 to 28 inches; dark yellowish brown (10YR

4/4) loam; weak fine subangular blocky structure;

friable; common fine roots; slightly acid; gradual

smooth boundary.

2Bw2—28 to 42 inches; yellowish brown (10YR 5/6)

loam; weak fine subangular blocky structure; firm;

common fine roots; about 2 percent subrounded

mixed gravel; moderately acid; gradual smooth

boundary.

2Bw3—42 to 51 inches; yellowish brown (10YR 5/6)

loam; weak fine and medium subangular blocky

structure; firm; common fine roots; about 2 percent

subrounded mixed gravel; common fine prominent

grayish brown (10YR 5/2) redoximorphic

depletions; moderately acid; clear smooth

boundary.

2Bw4—51 to 61 inches; yellowish brown (10YR 5/6)

loam; weak medium subangular blocky structure;

firm; common fine roots; about 2 percent

subrounded mixed gravel; common fine prominent

grayish brown (10YR 5/2) redoximorphic

depletions; slightly effervescent; slightly alkaline;

clear smooth boundary.

2C—61 to 80 inches; yellowish brown (10YR 5/6)

loam; massive; firm; about 2 percent subrounded

mixed gravel; many fine prominent grayish brown

(10YR 5/2) redoximorphic depletions; strongly

effervescent; moderately alkaline.

Range in Characteristics

Thickness of the mollic epipedon: 10 to 20 inches

Depth to till: 13 to 24 inches

Depth to carbonates: 45 to 66 inches

Ap and A horizons:

Hue—10YR

Value—2 or 3

Chroma—1 to 3

Texture—loam or silt loam

Bw horizon (if it occurs):

Hue—10YR

Value—4 or 5

Chroma—3 or 4

Texture—loam or silt loam; a stone line is

commonly at the lower boundary of this horizon

2Bw horizon:

Hue—10YR or 2.5Y

Value—4 or 5

Chroma—2 to 6

Texture—loam, clay loam, or sandy clay loam

2C horizon:

Hue—10YR or 2.5Y
Black Hawk County, Iowa 95

Value—4 to 6

Chroma—1 to 6

Texture—loam, clay loam, or sandy clay loam

Taxadjunct features: The Kenyon soils in map units

83C2 and 83D2 are taxadjuncts because the

surface layer does not meet the requirements for a

mollic epipedon.

Klinger Series

Typical Pedon

Klinger silty clay loam, 1 to 3 percent slopes, in a

cultivated field; 1,440 feet north and 2,360 feet west of

the southeast corner of sec. 5, T. 89 N., R. 14 W.; USGS

New Hartford SE topographic quarter quadrangle; lat. 42

degrees 32 minutes 46.9 seconds N. and long. 92

degrees 31 minutes 24.6 seconds W., NAD 83:

Ap—0 to 8 inches; black (10YR 2/1) silty clay loam,

very dark gray (10YR 3/1) dry; weak medium

subangular blocky structure; friable; common very

fine and fine roots; common very fine tubular

pores; neutral; abrupt smooth boundary.

A—8 to 18 inches; very dark brown (10YR 2/2) silty

clay loam, very dark grayish brown (10YR 3/2)

dry; moderate fine and medium subangular blocky

structure; friable; common very fine roots;

common very fine tubular pores; slightly acid; clear

smooth boundary.

Bg1—18 to 26 inches; dark grayish brown (10YR 4/2)

silty clay loam; moderate fine and medium

subangular blocky structure; friable; few very fine

roots; common very fine tubular pores; common

faint discontinuous very dark gray (10YR 3/1)

organic coatings on faces of peds; slightly acid;

clear smooth boundary.

Bg2—26 to 33 inches; dark grayish brown (2.5Y 4/2)

silty clay loam; moderate fine and medium

subangular blocky structure; friable; few very fine

roots; common very fine tubular pores;

discontinuous stone line consisting of rounded

gravel and cobbles 1 to 6 inches in diameter (5 to

10 percent of this horizon); few fine prominent

yellowish brown (10YR 5/6) redoximorphic

concentrations; slightly acid; clear smooth

boundary.

2Bg3—33 to 44 inches; about 70 percent yellowish

brown (10YR 5/6) and 30 percent grayish brown

(2.5Y 5/2) loam; weak fine and medium

subangular blocky structure; firm; neutral; gradual

smooth boundary.

2BC—44 to 52 inches; about 60 percent yellowish

brown (10YR 5/6) and 40 percent grayish brown

(2.5Y 5/2) loam; weak medium subangular blocky

structure; firm; neutral; clear smooth boundary.

2C—52 to 80 inches; yellowish brown (10YR 5/6)

loam; massive; firm; few fine black (10YR 2/1)

masses of iron-manganese; common fine

carbonate concretions; strongly effervescent;

moderately alkaline.

Range in Characteristics

Thickness of the mollic epipedon: 12 to 24 inches

Depth to till: 20 to 40 inches

Ap and A horizons:

Hue—10YR

Value—2 or 3

Chroma—1 or 2

Texture—silty clay loam or silt loam

Bg horizon:

Hue—10YR or 2.5Y

Value—4 or 5

Chroma—2 to 4

Texture—silty clay loam; a stone line is commonly

at the lower boundary of this horizon

2Bg and 2BC horizons:

Hue—10YR or 2.5Y

Value—5 or 6

Chroma—2 to 6

Texture—loam or clay loam

2C horizon:

Hue—10YR or 2.5Y

Value—5 or 6

Chroma—2 to 6

Texture—loam or clay loam

Klingmore Series

Typical Pedon

Klingmore silty clay loam, 1 to 3 percent slopes, in a

cultivated field; 300 feet south and 200 feet east of the

northwest corner of sec. 29, T. 87 N., R. 14 W.; USGS

Reinbeck NE topographic quarter quadrangle; lat. 42

degrees 19 minutes 31.20 seconds N. and long. 92

degrees 30 minutes 49.34 seconds W., NAD 83:

Ap—0 to 8 inches; black (10YR 2/1) silty clay loam,

very dark gray (10YR 3/1) dry; moderate fine

granular structure; friable; common fine roots;

common very fine tubular pores; slightly acid; clear

smooth boundary.

A1—8 to 14 inches; very dark brown (10YR 2/2) silty

clay loam, very dark grayish brown (10YR 3/2)

dry; moderate fine subangular blocky structure;
96 Soil Survey of

friable; common very fine roots; common very fine

tubular pores; moderately acid; clear smooth

boundary.

A2—14 to 19 inches; very dark brown (10YR 2/2) silty

clay loam, very dark grayish brown (10YR 3/2)

dry; moderate fine subangular blocky structure;

friable; common very fine roots; common very fine

tubular pores; moderately acid; gradual smooth

boundary.

Btg1—19 to 25 inches; dark grayish brown (10YR 4/2)

silty clay loam; moderate medium subangular

blocky structure; friable; few very fine roots;

common very fine tubular pores; few distinct dark

gray (10YR 4/1) clay films on vertical faces of

peds; moderately acid; gradual smooth boundary.

Btg2—25 to 34 inches; dark grayish brown (2.5Y 4/2)

silty clay loam; moderate fine subangular blocky

structure; friable; few very fine roots; common very

fine tubular pores; few distinct dark gray (10YR

4/1) clay films on vertical faces of peds; strongly

acid; gradual smooth boundary.

Btg3—34 to 42 inches; dark grayish brown (2.5Y 4/2)

silty clay loam; moderate medium subangular

blocky structure; friable; few very fine roots;

common very fine tubular pores; few distinct dark

gray (10YR 4/1) clay films on vertical faces of

peds; few fine prominent strong brown (7.5YR 5/6)

redoximorphic concentrations; moderately acid;

gradual smooth boundary.

Btg4—42 to 56 inches; dark grayish brown (10YR 4/2)

silty clay loam; weak medium subangular blocky

structure; friable; common very fine tubular pores;

few distinct dark gray (10YR 4/1) clay films on

vertical faces of peds; discontinuous stone line

consisting of rounded gravel and cobbles 1 to 6

inches in diameter (5 to 10 percent of this

horizon); few fine prominent strong brown (7.5YR

5/6) redoximorphic concentrations; slightly acid;

gradual smooth boundary.

2Cg1—56 to 70 inches; about 60 percent grayish

brown (2.5Y 5/2) and 40 percent strong brown

(7.5YR 5/6) loam; massive; friable; few very fine

tubular pores; about 3 percent subrounded gravel;

slightly alkaline; gradual smooth boundary.

2Cg2—70 to 80 inches; about 60 percent grayish

brown (10YR 5/2) and 40 percent yellowish brown

(10YR 5/6) loam; massive; friable; about 3 percent

subrounded gravel; slightly alkaline.

Range in Characteristics

Thickness of the mollic epipedon: 14 to 20 inches

Depth to till: 40 to 60 inches

Depth to carbonates: 40 to more than 80 inches

Ap and A horizons:

Hue—10YR

Value—2 or 3

Chroma—1 to 3

Texture—silty clay loam or silt loam

Btg horizon:

Hue—2.5Y or 10YR

Value—4 to 6

Chroma—1 or 2

Texture—silty clay loam; a stone line is commonly

at the lower boundary of this horizon

2Btg horizon or 2BCg horizon (if it occurs):

Hue—7.5YR, 10YR, or 2.5Y

Value—4 to 6

Chroma—1 to 8

Texture—loam, clay loam, or sandy clay loam

2Cg horizon:

Hue—7.5YR, 10YR, or 2.5Y

Value—4 to 6

Chroma—1 to 8

Texture—loam, clay loam, or sandy clay loam

Klossner Series

Typical Pedon

Klossner muck, 1 to 3 percent slopes, in an area of

wetland vegetation; 1,900 feet north and 1,650 feet

west of the southeast corner of sec. 15, T. 87 N., R. 13

W.; USGS Eagle Center NW topographic quarter

quadrangle; lat. 42 degrees 20 minutes 46.4 seconds

N. and long. 92 degrees 20 minutes 38.6 seconds W.,

NAD 83:

Oa1—0 to 6 inches; black (N 2/0) muck; weak fine

subangular blocky structure; very friable; many

very fine and fine roots; slightly acid; clear smooth

boundary.

Oa2—6 to 24 inches; black (N 2/0) muck; weak fine

subangular blocky structure; very friable; many

very fine and fine roots; moderately acid; clear

smooth boundary.

2A1—24 to 32 inches; black (N 2/0) mucky silt loam;

weak fine subangular blocky structure; very friable;

common very fine roots; neutral; gradual smooth

boundary.

2A2—32 to 41 inches; black (N 2/0) mucky silt loam;

weak fine subangular blocky structure; very friable;

few very fine roots; slightly alkaline; clear smooth

boundary.

2A3—41 to 49 inches; black (N 2/0) mucky silt loam;

massive; very friable; few medium prominent
Black Hawk County, Iowa 97

greenish gray (5GY 6/1) redoximorphic depletions;

slightly alkaline; clear smooth boundary.

2Cg—49 to 80 inches; greenish gray (5GY 6/1) silt

loam; massive; friable; slightly alkaline.

Range in Characteristics

Thickness of the organic material: 16 to 50 inches

O horizon:

Hue—10YR, 5YR, or N

Value—2 or 3

Chroma—0 to 2

Texture—muck

2A horizon:

Hue—10YR, 2.5Y, 5Y, or N

Value—2 or 3

Chroma—0 or 1

Texture—loam, silt loam, sandy clay loam, or silty

clay loam or the mucky analogs of these

textures

2Cg horizon:

Hue—10YR, 2.5Y, 5Y, 5GY, or N

Value—2 to 7

Chroma—0 to 2

Texture—loam, silt loam, silty clay loam, clay

loam, sandy clay loam, sandy loam, or fine

sandy loam or the gravelly or cobbly analogs of

these textures

Lawler Series

Typical Pedon

Lawler loam, 24 to 40 inches to sand and gravel, 0 to 2

percent slopes, in a cultivated field; 1,100 feet south

and 1,200 feet east of the northwest corner of sec. 7,

T. 87 N., R. 11 W.; USGS LaPorte City NE topographic

quarter quadrangle; lat. 42 degrees 21 minutes 59.3

seconds N. and long. 92 degrees 10 minutes 37.4

seconds W., NAD 83:

Ap—0 to 7 inches; black (10YR 2/1) loam, very dark

gray (10YR 3/1) dry; weak medium subangular

blocky structure; friable; common very fine and

fine roots; common very fine tubular pores;

neutral; abrupt smooth boundary.

A—7 to 18 inches; black (10YR 2/1) loam, very dark

gray (10YR 3/1) dry; weak fine and medium

subangular blocky structure; friable; common very

fine roots; common very fine tubular pores;

neutral; clear smooth boundary.

Bg1—18 to 26 inches; dark grayish brown (2.5Y 4/2)

loam; weak fine and medium subangular blocky

structure; friable; few very fine roots; common very

fine tubular pores; common fine and medium

prominent strong brown (7.5YR 4/6)

redoximorphic concentrations; moderately acid;

clear smooth boundary.

Bg2—26 to 33 inches; dark grayish brown (10YR 4/2)

sandy clay loam; weak medium subangular blocky

structure; friable; few very fine roots; few very fine

tubular pores; common fine and medium

prominent strong brown (7.5YR 4/6)

redoximorphic concentrations; moderately acid;

clear smooth boundary.

2C1—33 to 48 inches; brown (7.5YR 5/4) gravelly

loamy sand; single grain; loose; common fine and

medium faint brown (7.5YR 4/4) redoximorphic

concentrations; about 25 percent mixed gravel;

moderately acid; gradual smooth boundary.

2C2—48 to 80 inches; about 80 percent brown (7.5YR

5/4) and 20 percent grayish brown (2.5Y 5/2)

gravelly sand; single grain; loose; about 20 percent

mixed gravel; moderately acid.

Range in Characteristics

Thickness of the mollic epipedon: 10 to 20 inches

Depth to sandy material: 24 to 40 inches

Ap and A horizons:

Hue—10YR

Value—2 or 3

Chroma—1 or 2

Texture—loam or silt loam

Bg horizon:

Hue—2.5Y or 10YR

Value—4 to 6

Chroma—2 to 6

Texture—loam or sandy clay loam

2C horizon:

Hue—7.5YR, 10YR, or 2.5Y

Value—4 to 8

Chroma—1 to 6

Texture—gravelly loamy sand, gravelly sand, very

gravelly sand, or loamy coarse sand

Lilah Series

Typical Pedon

Lilah sandy loam, 2 to 9 percent slopes, in a cultivated

field; 600 feet south and 350 feet east of the northwest

corner of sec. 2, T. 89 N., R. 11 W.; USGS Littleton SW

topographic quarter quadrangle; lat. 42 degrees 33

minutes 12.96 seconds N. and long. 92 degrees 07

minutes 11.28 seconds W., NAD 83:

Ap—0 to 7 inches; very dark brown (10YR 2/2) sandy
98 Soil Survey of

loam, dark grayish brown (10YR 4/2) dry; weak

fine granular structure; friable; common fine roots;

neutral; abrupt smooth boundary.

Bt1—7 to 15 inches; brown (7.5YR 4/4) gravelly sandy

loam; weak fine granular structure; friable;

common fine roots; few prominent discontinuous

very dark brown (10YR 4/2) clay films; about 15

percent subrounded mixed gravel; neutral; abrupt

smooth boundary.

2Bt2—15 to 25 inches; brown (7.5YR 5/4) gravelly

loamy sand; weak fine and medium subangular

blocky structure; friable; common fine roots; few

prominent discontinuous very dark brown (10YR

4/4) clay films; about 15 percent subrounded

mixed gravel; slightly acid; clear smooth boundary.

2Bt3—25 to 36 inches; brown (7.5YR 4/4) gravelly

loamy sand; single grain; loose; common fine

roots; few prominent discontinuous very dark

grayish brown (10YR 4/3) clay films; about 15

percent mixed gravel; slightly acid; gradual smooth

boundary.

2C—36 to 80 inches; strong brown (7.5YR 5/6)

gravelly coarse sand; single grain; loose; about 25

percent mixed gravel and 5 percent mixed

cobbles; moderately acid.

Range in Characteristics

Depth to sandy material: 12 to 20 inches

Ap or A horizon:

Hue—10YR

Value—2 or 3

Chroma—1 to 3

Texture—sandy loam

Bt horizon:

Hue—10YR or 7.5YR

Value—4 or 5

Chroma—3 to 6

Texture—sandy loam or gravelly sandy loam

2Bt horizon:

Hue—10YR or 7.5YR

Value—4 or 5

Chroma—3 to 8

Texture—loamy sand, sand, gravelly loamy sand,

or gravelly sand

2C horizon:

Hue—10YR or 7.5YR

Value—4 or 5

Chroma—4 to 8

Texture—loamy sand, sand, or coarse sand or the

gravelly analogs of these textures

Lourdes Series

Typical Pedon

Lourdes loam, 2 to 5 percent slopes, in a cultivated

field; 800 feet north and 1,800 feet west of the

southeast corner of sec. 8, T. 90 N., R. 14 W.; USGS

New Hartford NE topographic quarter quadrangle; lat.

42 degrees 36 minutes 58.7 seconds N. and long. 92

degrees 30 minutes 51.3 seconds W., NAD 83:

Ap—0 to 8 inches; black (10YR 2/1) and very dark

brown (10YR 2/2) loam, grayish brown (10YR 5/2)

dry; weak fine granular structure; friable; neutral;

abrupt smooth boundary.

BE—8 to 15 inches; brown (10YR 4/3) loam; weak fine

subangular blocky structure; friable; common faint

discontinuous dark brown (10YR 3/3) organic

coatings on faces of peds; discontinuous stone

line consisting of rounded gravel and cobbles 1 to

6 inches in diameter (5 to 10 percent of this

horizon); slightly acid; clear smooth boundary.

2Bt1—15 to 22 inches; dark yellowish brown (10YR

4/4) clay loam; weak fine and medium subangular

blocky structure; firm; few faint discontinuous very

dark grayish brown (10YR 4/3) clay films on faces

of peds; about 5 percent mixed gravel; slightly

acid; clear smooth boundary.

2Bt2—22 to 30 inches; strong brown (7.5YR 5/6) clay

loam; moderate fine and medium subangular

blocky structure; very firm; few distinct

discontinuous very dark grayish brown (10YR 4/3)

clay films on faces of peds; about 5 percent mixed

gravel; few fine prominent grayish brown (10YR

5/2) redoximorphic depletions; moderately acid;

gradual smooth boundary.

2Bt3—30 to 37 inches; about 70 percent strong brown

(7.5YR 5/6) and 30 percent grayish brown (10YR

5/2) clay loam; moderate fine prismatic structure;

very firm; few distinct discontinuous very dark

grayish brown (10YR 4/3) clay films on faces of

peds; common fine black (10YR 2/1) masses of

iron-manganese; about 10 percent mixed gravel;

slightly acid; gradual smooth boundary.

2Bt4—37 to 52 inches; about 60 percent yellowish

brown (10YR 5/6) and 40 percent grayish brown

(10YR 5/2) clay loam; moderate fine prismatic

structure; very firm; common fine very dark brown

(10YR 2/2) masses of iron-manganese; very few

distinct discontinuous very dark grayish brown

(10YR 4/3) clay films on faces of peds; about 10

percent subrounded mixed gravel; common fine

and medium distinct strong brown (7.5YR 5/6)
Black Hawk County, Iowa 99

redoximorphic concentrations; slightly acid;

gradual smooth boundary.

2C—52 to 80 inches; about 60 percent yellowish

brown (10YR 5/6) and 40 percent grayish brown

(10YR 5/2) clay loam; massive; very firm; neutral.

Range in Characteristics

Depth to till: 12 to 22 inches

Ap or A horizon:

Hue—10YR

Value—2 or 3

Chroma—1 or 2

Texture—loam or silt loam

BE horizon:

Hue—10YR

Value—4

Chroma—3 or 4

Texture—loam or silt loam; a stone line is

commonly at the lower boundary of this horizon

2Bt horizon:

Hue—7.5YR, 10YR, 2.5Y, or 5Y

Value—4 to 6

Chroma—1 to 8

Texture—clay loam

2C horizon:

Hue—7.5YR, 10YR, 2.5Y, or 5Y

Value—4 to 6

Chroma—1 to 8

Texture—clay loam

Marquis Series

Typical Pedon

Marquis loam, 2 to 5 percent slopes, in a cultivated

field; 100 feet north and 100 feet east of the southwest

corner of sec. 17, T. 90 N., R. 12 W.; USGS Waterloo

North topographic quadrangle; lat. 42 degrees 35

minutes 59.5 seconds N. and long. 92 degrees 17

minutes 50.5 seconds W., NAD 83:

Ap—0 to 9 inches; black (10YR 2/1) loam, very dark

gray (10YR 3/1) dry; weak fine granular structure;

friable; common fine roots; common very fine

tubular pores; neutral; clear smooth boundary.

A—9 to 19 inches; very dark brown (10YR 2/2) and

very dark grayish brown (10YR 3/2) loam, dark

grayish brown (10YR 4/2) dry; weak fine

subangular blocky structure; friable; common fine

roots; common very fine tubular pores; neutral;

clear smooth boundary.

Bw1—19 to 24 inches; brown (10YR 4/3) loam; weak

fine subangular blocky structure; friable; few fine

roots throughout; common very fine moderatecontinuity tubular pores; common faint very dark

grayish brown (10YR 3/2) organic coatings on

faces of peds; discontinuous stone line consisting

of rounded gravel and cobbles 1 to 6 inches in

diameter (5 to 10 percent of this horizon); slightly

acid; clear smooth boundary.

2Bw2—24 to 32 inches; yellowish brown (10YR 5/6)

loam; moderate fine and medium subangular

blocky structure; friable; few fine roots; few very

fine tubular pores; about 2 percent mixed gravel;

common fine and medium prominent grayish

brown (2.5Y 5/2) redoximorphic depletions; slightly

acid; gradual wavy boundary.

2Bw3—32 to 42 inches; yellowish brown (10YR 5/6)

loam; moderate fine and medium subangular

blocky structure; firm; common fine roots; common

fine black (10YR 2/1) masses of iron-manganese;

about 2 percent mixed gravel; common fine

prominent grayish brown (2.5Y 5/2) redoximorphic

depletions; slightly acid; gradual wavy boundary.

2Bw4—42 to 54 inches; yellowish brown (10YR 5/6)

loam; moderate fine prismatic structure; firm;

common fine very dark brown (10YR 2/2) masses

of iron-manganese; about 2 percent mixed gravel;

common fine and medium prominent grayish

brown (2.5Y 5/2) redoximorphic depletions; slightly

acid; gradual wavy boundary.

2C—54 to 80 inches; strong brown (7.5YR 5/6) loam;

massive; firm; common fine very dark brown

(10YR 2/2) masses of iron-manganese; about 2

percent mixed gravel; common fine prominent gray

(2.5Y 5/1) redoximorphic depletions; slightly acid.

Range in Characteristics

Thickness of the mollic epipedon: 12 to 20 inches

Depth to till: 14 to 26 inches

Depth to carbonates: 45 to more than 80 inches

Ap and A horizons:

Hue—10YR

Value—2 or 3

Chroma—1 to 3

Texture—loam or silt loam

Bw horizon:

Hue—10YR or 2.5Y

Value—4 or 5

Chroma—2 to 6

Texture—loam, silt loam, clay loam, or sandy clay

loam; a stone line is commonly at the lower

boundary of this horizon

2Bw horizon:

Hue—7.5YR to 2.5Y

Value—4 to 6
100 Soil Survey of

Chroma—1 to 8

Texture—loam, clay loam, or sandy clay loam;

vertical seams or wedges of sand or loamy

sand 2 to 6 inches wide throughout the horizon

in some pedons

2BC or 2C horizon:

Hue—7.5YR to 2.5Y

Value—4 to 6

Chroma—1 to 8

Texture—loam, clay loam, or sandy clay loam;

vertical seams or wedges of sand or loamy

sand 2 to 6 inches wide throughout the horizon

in some pedons

Marshan Series

Typical Pedon

Marshan clay loam, 24 to 40 inches to sand and

gravel, 0 to 2 percent slopes, in a cultivated field; 150

feet north and 1,100 feet east of the southwest corner

of sec. 23, T. 89 N., R. 12 W.; USGS Gilbertville NW

topographic quarter quadrangle; lat. 42 degrees 29

minutes 54.4 seconds N. and long. 92 degrees 14

minutes 05.7 seconds W., NAD 83:

Ap—0 to 9 inches; black (10YR 2/1) clay loam, very

dark gray (10YR 3/1) dry; weak fine granular

structure; friable; common fine roots; common fine

tubular pores; slightly acid; abrupt smooth

boundary.

A—9 to 18 inches; black (10YR 2/1) clay loam, dark

gray (10YR 4/1) dry; weak fine subangular blocky

structure; friable; common fine roots; common fine

tubular pores; moderately acid; clear smooth

boundary.

Bg1—18 to 26 inches; dark gray (2.5Y 4/1) clay loam;

weak fine subangular blocky structure; friable; few

fine roots; common fine tubular pores; common

distinct discontinuous very dark gray (10YR 3/1)

organic coatings on faces of peds; common fine

and medium prominent strong brown (7.5YR 4/6)

redoximorphic concentrations; moderately acid;

clear smooth boundary.

Bg2—26 to 34 inches; gray (2.5Y 5/1) clay loam; weak

fine subangular blocky structure; friable; common

fine tubular pores; many coarse prominent strong

brown (7.5Y 5/6) redoximorphic concentrations;

moderately acid; clear smooth boundary.

2C1—34 to 51 inches; gray (10YR 6/1) sand; single

grain; loose; about 3 percent mixed gravel; few fine

prominent strong brown (7.5YR 5/6)

redoximorphic concentrations; neutral; gradual

smooth boundary.

2C2—51 to 80 inches; light brownish gray (10YR 6/2)

sand; single grain; loose; about 10 percent mixed

gravel; slightly alkaline.

Range in Characteristics

Thickness of the mollic epipedon: 12 to 24 inches

Depth to sandy material: 24 to 40 inches

Ap and A horizons:

Hue—10YR, 2.5Y, 5Y, or N

Value—2 or 3

Chroma—0 to 2

Texture—loam, clay loam, silty clay loam, or silt

loam

Bg horizon:

Hue—2.5Y or 5Y

Value—4 to 6

Chroma—1 or 2

Texture—loam, clay loam, sandy loam, silty clay

loam, or silt loam

2C horizon:

Hue—10YR, 2.5Y, or 5Y

Value—4 to 6

Chroma—1 to 6

Texture—sand, loamy sand, gravelly sand, or

gravelly loamy sand

Maxfield Series

Typical Pedon

Maxfield silty clay loam, 0 to 2 percent slopes, in a

cultivated field; 1,700 feet west and 1,340 feet north of

the southeast corner of sec. 5, T. 89 N., R. 14 W.;

USGS New Hartford SE topographic quarter

quadrangle; lat. 42 degrees 32 minutes 45.8 seconds

N. and long. 92 degrees 31 minutes 16.1 seconds W.,

NAD 83:

Ap—0 to 8 inches; black (N 2/0) silty clay loam, black

(10YR 2/1) dry; weak medium subangular blocky

structure; friable; common very fine and fine roots;

common very fine tubular pores; neutral; abrupt

smooth boundary.

A1—8 to 13 inches; black (N 2/0) silty clay loam, black

(10YR 2/1) dry; weak fine and medium subangular

blocky structure; friable; common very fine roots;

common very fine tubular pores; neutral; clear

smooth boundary.

A2—13 to 19 inches; very dark gray (10YR 3/1) silty

clay loam, dark gray (10YR 4/1) dry; weak fine

and medium subangular blocky structure; friable;

few very fine roots; common very fine tubular

pores; few fine distinct dark grayish brown (2.5Y
Black Hawk County, Iowa 101

4/2) redoximorphic depletions; neutral; clear

smooth boundary.

Bg—19 to 28 inches; dark grayish brown (2.5Y 4/2)

silty clay loam; weak fine and medium subangular

blocky structure; friable; few very fine roots;

common very fine tubular pores; common faint

discontinuous dark gray (2.5Y 4/1) coatings on

faces of peds; discontinuous stone line consisting

of rounded gravel and cobbles 1 to 6 inches in

diameter (5 to 10 percent of this horizon); few fine

prominent strong brown (7.5YR 5/6)

redoximorphic concentrations; neutral; abrupt

smooth boundary.

2Bw1—28 to 34 inches; olive brown (10YR 5/4) loam;

weak coarse subangular blocky structure; very

friable; common medium distinct dark grayish

brown (2.5Y 4/2) redoximorphic depletions;

neutral; clear smooth boundary.

2Bw2—34 to 48 inches; yellowish brown (10YR 5/6)

loam; weak medium prismatic structure; firm;

many medium prominent gray (2.5Y 6/2)

redoximorphic depletions; neutral; clear smooth

boundary.

2Cg—48 to 80 inches; gray (2.5Y 6/2) and yellowish

brown (10YR 5/6) loam; massive; firm; strongly

effervescent; moderately alkaline.

Range in Characteristics

Thickness of the mollic epipedon: 14 to 24 inches

Depth to till: 20 to 40 inches

Ap and A horizons:

Hue—10YR or N

Value—2 or 3

Chroma—0 or 1

Texture—silty clay loam or silt loam

Bg horizon:

Hue—2.5Y or 5Y

Value—4 or 5

Chroma—2

Texture—silty clay loam or silt loam; a stone line is

commonly at the lower boundary of this horizon

2Bw horizon:

Hue—10YR or 7.5YR

Value—5

Chroma—4 to 8

Texture—loam or clay loam

2Cg horizon:

Hue—2.5Y, 10YR, or 7.5YR

Value—5 or 6

Chroma—2 to 8

Texture—loam or clay loam

Maxmore Series

Typical Pedon

Maxmore silty clay loam, 0 to 2 percent slopes, in a

cultivated field; 300 feet south and 1,700 feet east of

the northwest corner of sec. 29, T. 87 N., R. 14 W.;

USGS Reinbeck NE topographic quarter quadrangle;

lat. 42 degrees 19 minutes 31.14 seconds N. and long.

92 degrees 30 minutes 29.33 seconds W., NAD 83:

Ap—0 to 8 inches; black (N 2/0) silty clay loam, black

(10YR 2/1) dry; weak medium subangular blocky

structure; friable; common fine roots; common

very fine tubular pores; neutral; clear smooth

boundary.

A1—8 to 14 inches; black (N 2/0) silty clay loam, black

(10YR 2/1) dry; weak fine subangular blocky

structure; friable; common very fine roots;

common very fine tubular pores; neutral; gradual

smooth boundary.

A2—14 to 20 inches; very dark gray (10YR 3/1) silty

clay loam, dark gray (10YR 4/1) dry; weak fine

subangular blocky structure; friable; few very fine

roots; common very fine tubular pores; neutral;

gradual smooth boundary.

Btg1—20 to 26 inches; dark gray (2.5Y 4/1) silty clay

loam; weak medium subangular blocky structure;

friable; few very fine roots; common very fine

tubular pores; few distinct clay films on vertical

faces of peds; few fine prominent brown (7.5YR

4/4) iron concentrations; slightly acid; gradual

smooth boundary.

Btg2—26 to 36 inches; dark gray (2.5Y 4/1) silty clay

loam; weak medium subangular blocky structure;

friable; few very fine roots; common very fine

tubular pores; few distinct clay films on vertical

faces of peds; common fine prominent yellowish

red (5YR 4/6) redoximorphic concentrations;

neutral; gradual smooth boundary.

Btg3—36 to 44 inches; dark gray (5Y 4/1) silty clay

loam; weak medium subangular blocky structure;

friable; common very fine tubular pores; few

distinct clay films on vertical faces of peds;

common fine prominent yellowish red (5YR 4/6)

redoximorphic concentrations; neutral; gradual

smooth boundary.

Btg4—44 to 50 inches; olive brown (5Y 5/1) silty clay

loam; weak medium prismatic structure; friable;

common very fine tubular pores; few distinct clay

films on vertical faces of peds; discontinuous

stone line consisting of rounded gravel and

cobbles 1 to 6 inches in diameter (5 to 10 percent

of this horizon); common fine prominent yellowish
102 Soil Survey of

red (5YR 4/6) redoximorphic concentrations;

neutral; gradual smooth boundary.

2BC—50 to 80 inches; about 50 percent yellowish

brown (10YR 5/6) and 50 percent grayish brown

(2.5Y 5/2) loam; massive; friable; few very fine

tubular pores; slightly alkaline.

Range in Characteristics

Thickness of the mollic epipedon: 14 to 24 inches

Depth to till: 40 to 60 inches

Depth to carbonates: 40 to more than 80 inches

Ap and A horizons:

Hue—10YR or N

Value—2 or 3

Chroma—0 to 2

Texture—silty clay loam or silt loam

Btg horizon:

Hue—2.5Y or 5Y

Value—4 or 5

Chroma—1 or 2

Texture—silty clay loam; a stone line is commonly

at the lower boundary of this horizon

2BC or 2C horizon:

Hue—7.5YR, 10YR, or 2.5Y

Value—4 to 6

Chroma—1 to 8

Texture—loam, clay loam, or sandy clay loam

Nevin Series

Typical Pedon

Nevin silty clay loam, 0 to 2 percent slopes, in a

cultivated field; 1,300 feet east and 1,350 feet south of

the northwest corner of sec. 6, T. 87 N., R. 14 W.;

USGS Zaneta SE topographic quarter quadrangle; lat.

42 degrees 22 minutes 51.7 seconds N. and long. 92

degrees 31 minutes 44.9 seconds W., NAD 83:

Ap—0 to 8 inches; black (10YR 2/1) silty clay loam,

very dark gray (10YR 3/1) dry; weak medium

subangular blocky structure; friable; common very

fine and fine roots; common very fine tubular

pores; neutral; abrupt smooth boundary.

A1—8 to 14 inches; black (10YR 2/1) silty clay loam,

very dark gray (10YR 3/1) dry; moderate fine

subangular blocky structure parting to moderate

fine granular; friable; common very fine roots;

common very fine tubular pores; neutral; clear

smooth boundary.

A2—14 to 22 inches; very dark gray (10YR 3/1) silty

clay loam, dark gray (10YR 4/1) dry; moderate fine

and medium subangular blocky structure; friable;

few very fine roots; common very fine tubular

pores; neutral; clear smooth boundary.

Btg1—22 to 30 inches; dark grayish brown (10YR 4/2)

silty clay loam; moderate fine and medium

subangular blocky structure; friable; few very fine

roots; common very fine tubular pores; common

faint discontinuous dark gray (10YR 4/1) clay films

on faces of peds; few fine distinct dark yellowish

brown (10YR 4/4) redoximorphic concentrations;

neutral; clear smooth boundary.

Btg2—30 to 41 inches; dark grayish brown (2.5Y 4/2)

silty clay loam; moderate fine and medium

subangular blocky structure; friable; common very

fine tubular pores; common distinct discontinuous

dark gray (10YR 4/1) clay films on faces of peds;

common fine prominent brown (7.5YR 4/4)

redoximorphic concentrations; neutral; gradual

smooth boundary.

Btg3—41 to 50 inches; grayish brown (2.5Y 5/2) silty

clay loam; moderate medium subangular blocky

structure; friable; common very fine tubular pores;

common distinct discontinuous gray (10YR 5/1)

clay films on faces of peds; many fine and medium

prominent strong brown (7.5YR 5/6)

redoximorphic concentrations; neutral; gradual

smooth boundary.

BCg—50 to 62 inches; grayish brown (2.5Y 5/2) silt

loam; weak coarse subangular blocky structure;

friable; few distinct discontinuous gray (10YR 5/1)

clay films on faces of peds; many fine and medium

prominent strong brown (7.5YR 5/6)

redoximorphic concentrations; neutral; gradual

smooth boundary.

2Cg—62 to 80 inches; olive gray (2.5Y 5/2) fine sand;

single grain; loose; many fine and medium

prominent strong brown (7.5YR 5/6)

redoximorphic concentrations; neutral.

Range in Characteristics

Thickness of the mollic epipedon: 10 to 24 inches

Depth to sandy alluvium: 60 to 80 inches

Depth to carbonates: More than 60 inches

Ap and A horizons:

Hue—10YR

Value—2 or 3

Chroma—1 or 2

Texture—silt loam or silty clay loam

Btg and BCg horizons:

Hue—10YR or 2.5Y

Value—4 or 5

Chroma—2 to 4

Texture—silty clay loam or silt loam
Black Hawk County, Iowa 103

Cg horizon (if it occurs):

Hue—10YR or 2.5Y

Value—4 to 6

Chroma—1 to 4

Texture—silty clay loam or silt loam

2Cg horizon:

Hue—10YR or 2.5Y

Value—4 to 6

Chroma—1 to 4

Texture—fine sand, loamy sand, or sand or the

gravelly analogs of these textures

Olin Series

Typical Pedon

Olin fine sandy loam, 2 to 5 percent slopes, in a

cultivated field; 230 feet north and 270 feet west of the

southeast corner of sec. 2, T. 89 N., R. 11 W.; USGS

Littleton SW topographic quarter quadrangle; lat. 42

degrees 32 minutes 29.3 seconds N. and long. 92

degrees 06 minutes 11.6 seconds W., NAD 83:

Ap—0 to 8 inches; very dark brown (10YR 2/2) fine

sandy loam, dark grayish brown (10YR 4/2) dry;

weak medium subangular blocky structure; very

friable; common very fine and fine roots; neutral;

abrupt smooth boundary.

A—8 to 19 inches; very dark brown (10YR 2/2) fine

sandy loam, dark grayish brown (10YR 4/2) dry;

weak fine and medium subangular blocky

structure; very friable; common very fine roots;

slightly acid; clear smooth boundary.

Bw1—19 to 25 inches; brown (10YR 4/3) sandy loam;

weak medium subangular blocky structure; very

friable; few very fine roots; few faint discontinuous

dark brown (10YR 3/3) organic coatings on faces

of peds; moderately acid; clear smooth boundary.

Bw2—25 to 31 inches; dark yellowish brown (10YR

4/4) sandy loam; weak medium subangular blocky

structure; very friable; few very fine roots;

discontinuous stone line consisting of rounded

gravel and cobbles 1 to 6 inches in diameter (5 to

10 percent of this horizon); strongly acid; clear

smooth boundary.

2Bw3—31 to 53 inches; 60 percent strong brown

(10YR 4/6) and 40 percent gray (10YR 5/3) loam;

weak medium prismatic structure; firm; common

fine dark reddish brown (5YR 3/2) masses of ironmanganese; moderately acid; gradual smooth

boundary.

2C1—53 to 67 inches; strong brown (7.5YR 5/6) loam;

massive; firm; common fine strong brown (7.5YR

2/2) masses of iron-manganese; common medium

prominent gray (2.5Y 6/2) redoximorphic

depletions; slightly acid; gradual smooth boundary.

2C2—67 to 80 inches; strong brown (7.5YR 5/6) loam;

massive; firm; common fine strong brown (7.5YR

2/2) masses of iron-manganese; neutral.

Range in Characteristics

Thickness of the mollic epipedon: 16 to 20 inches

Depth to till: 24 to 36 inches

Ap and A horizons:

Hue—10YR

Value—2 or 3

Chroma—2

Texture—sandy loam or fine sandy loam

Bw horizon:

Hue—10YR

Value—4 or 5

Chroma—3 or 4

Texture—sandy loam or loamy sand; a stone line

is commonly at the lower boundary of this

horizon

2Bw horizon:

Hue—10YR

Value—4 or 5

Chroma—3 to 6

Texture—loam, clay loam, or sandy clay loam

2C horizon:

Hue—10YR or 7.5YR

Value—4 to 6

Chroma—4 to 8

Texture—loam or clay loam

Oran Series

Typical Pedon

Oran loam, 1 to 3 percent slopes, in a cultivated field;

940 feet south and 2,570 feet east of the northwest

corner of sec. 2, T. 90 N., R. 11 W.; USGS Fairbank

SW topographic quarter quadrangle; lat. 42 degrees

38 minutes 22.1 seconds N. and long. 92 degrees 06

minutes 40.7 seconds W., NAD 83:

Ap—0 to 9 inches; very dark brown (10YR 2/2) loam,

very dark grayish brown (10YR 3/2) dry; weak fine

granular structure; friable; common fine roots;

common fine tubular pores; neutral; abrupt smooth

boundary.

BE—9 to 16 inches; olive brown (10YR 4/3) loam;

weak thin platy and weak fine subangular blocky

structure; friable; common very fine roots;

common very fine tubular pores; common fine faint
104 Soil Survey of

light olive brown (2.5Y 5/4) redoximorphic

concentrations; slightly acid; clear smooth

boundary.

Bt1—16 to 23 inches; dark yellowish brown (10YR 4/6)

sandy clay loam; weak fine subangular blocky

structure; friable; few very fine roots; common very

fine tubular pores; few faint thin very dark

yellowish brown (10YR 4/4) clay films on faces of

peds; about 2 percent rounded mixed gravel;

discontinuous stone line consisting of rounded

gravel and cobbles 1 to 6 inches in diameter (5 to

10 percent of this horizon); moderately acid; clear

smooth boundary.

2Bt2—23 to 44 inches; grayish brown (10YR 5/2) and

yellowish brown (10YR 5/6) clay loam; moderate

fine prismatic structure; firm; few very fine roots;

few very fine tubular pores; few faint thin very dark

grayish brown (10YR 5/1) clay films on faces of

peds; common fine black (10YR 2/1) masses of

iron-manganese; strongly acid; clear smooth

boundary.

2Bt3—44 to 54 inches; grayish brown (10YR 5/2) and

yellowish brown (10YR 5/6) clay loam; moderate

medium prismatic structure; firm; few faint thin

gray (10YR 5/1) clay films on faces of peds;

common fine black (10YR 2/1) masses of ironmanganese; moderately acid; gradual smooth

boundary.

2C—54 to 80 inches; yellowish brown (10YR 5/6)

loam; massive; firm; common fine black (10YR

2/1) masses of iron-manganese; many medium

prominent grayish brown (10YR 5/2)

redoximorphic depletions; neutral.

Range in Characteristics

Depth to till: 14 to 24 inches

Ap or A horizon:

Hue—10YR

Value—2 or 3

Chroma—1 or 2

Texture—loam or silt loam

E or BE horizon:

Hue—10YR or 2.5Y

Value—4 or 5

Chroma—2 or 3

Texture—loam or silt loam

Bt horizon:

Hue—10YR

Value—4 or 5

Chroma—4 to 6

Texture—sandy clay loam or loam; a stone line is

commonly at the lower boundary of this horizon

2Bt or 2BC horizon:

Hue—7.5YR, 10YR, or 2.5Y

Value—4 to 6

Chroma—2 to 8

Texture—loam, clay loam, or sandy clay loam

2C horizon:

Hue—7.5YR or 10YR

Value—5

Chroma—6

Texture—loam, clay loam, or sandy clay loam

Protivin Series

Typical Pedon

Protivin loam, 1 to 3 percent slopes, in a cultivated

field; 820 feet north and 480 feet east of the southwest

corner of sec. 5, T. 89 N., R. 12 W.; USGS Waterloo

North SE topographic quarter quadrangle; lat. 42

degrees 32 minutes 39.9 seconds N. and long. 92

degrees 17 minutes 45.6 seconds W., NAD 83:

Ap—0 to 7 inches; black (10YR 2/1) loam, very dark

gray (10YR 3/1) dry; weak medium subangular

blocky structure; friable; common very fine and

fine roots; common very fine tubular pores; slightly

acid; abrupt smooth boundary.

A1—7 to 13 inches; black (10YR 2/1) clay loam, very

dark gray (10YR 3/1) dry; moderate fine and

medium subangular blocky structure; friable;

common very fine roots; common very fine tubular

pores; slightly acid; clear smooth boundary.

A2—13 to 19 inches; very dark gray (10YR 3/1) clay

loam, dark gray (10YR 4/1) dry; moderate fine and

medium subangular blocky structure; friable; few

very fine roots; common very fine tubular pores;

discontinuous stone line consisting of rounded

gravel and cobbles 1 to 6 inches in diameter (5 to

10 percent of this horizon); moderately acid; clear

smooth boundary.

2Btg1—19 to 30 inches; dark grayish brown (10YR

4/2) clay loam; moderate medium subangular

blocky structure; very firm; few very fine roots; few

faint discontinuous very dark gray (10YR 3/1) clay

films on faces of peds; slightly acid; clear smooth

boundary.

2Btg2—30 to 36 inches; dark grayish brown (2.5Y 4/2)

and dark yellowish brown (10YR 4/4) clay loam;

moderate medium subangular blocky structure;

very firm; few distinct discontinuous very dark gray

(10YR 3/1) clay films on faces of peds; neutral;

clear smooth boundary.

2Btg3—36 to 43 inches; grayish brown (2.5Y 5/2) clay

loam; weak medium subangular blocky structure;
Black Hawk County, Iowa 105

very firm; few distinct discontinuous very dark gray

(10YR 3/1) clay films on faces of peds; neutral;

gradual smooth boundary.

2BC—43 to 62 inches; dark grayish brown (2.5Y 4/2)

and dark yellowish brown (10YR 4/4) clay loam;

weak medium subangular blocky structure; very

firm; neutral; gradual smooth boundary.

2C—62 to 80 inches; dark grayish brown (2.5Y 4/2)

and dark yellowish brown (10YR 4/4) clay loam;

massive; very firm; neutral.

Range in Characteristics

Thickness of the mollic epipedon: 12 to 20 inches

Depth to till: 14 to 28 inches

Ap and A horizons:

Hue—10YR

Value—2 or 3

Chroma—1 or 2

Texture—loam, clay loam, or silt loam; a stone line

is commonly at the lower boundary of this

horizon

2Btg horizon:

Hue—7.5YR, 10YR, 2.5Y, or 5Y

Value—4 to 6

Chroma—1 to 8

Texture—clay loam

2BC and 2C horizons:

Hue—7.5YR, 10YR, 2.5Y, or 5Y

Value—4 to 6

Chroma—1 to 8

Texture—clay loam

Readlyn Series

Typical Pedon

Readlyn loam, 1 to 3 percent slopes, in a cultivated

field; 790 feet north and 130 feet west of the southeast

corner of sec. 18, T. 90 N., R. 12 W.; USGS Waterloo

North NE topographic quarter quadrangle; lat. 42

degrees 36 minutes 06.5 seconds N. and long. 92

degrees 17 minutes 54.1 seconds W., NAD 83:

Ap—0 to 8 inches; black (10YR 2/1) loam, very dark

gray (10YR 3/1) dry; weak fine granular structure;

friable; common fine roots; neutral; abrupt smooth

boundary.

A—8 to 16 inches; black (10YR 2/1) loam, dark gray

(10YR 4/1) dry; weak fine granular structure;

friable; common fine roots; moderately acid; clear

smooth boundary.

Bg—16 to 24 inches; dark grayish brown (10YR 4/2)

loam; weak fine subangular blocky structure;

friable; common fine roots; common faint

continuous very dark grayish brown (10YR 3/2)

stains on faces of peds and in pores;

discontinuous stone line consisting of rounded

gravel and cobbles 1 to 6 inches in diameter (5 to

10 percent of this horizon); moderately acid; clear

smooth boundary.

2Bw1—24 to 31 inches; about 50 percent dark grayish

brown (2.5Y 4/2) and 50 percent olive brown (2.5Y

4/4) clay loam; weak fine subangular blocky

structure; friable; common fine roots; few distinct

discontinuous very dark grayish brown (10YR 3/2)

stains on faces of peds and in pores; strongly acid;

gradual smooth boundary.

2Bw2—31 to 40 inches; about 50 percent light olive

brown (2.5Y 5/6) and 50 percent grayish brown

(2.5Y 5/2) loam; moderate fine subangular blocky

structure; firm; common fine roots; about 2 percent

mixed gravel; moderately acid; gradual wavy

boundary.

2Bw3—40 to 52 inches; about 50 percent yellowish

brown (10YR 5/6) and 50 percent grayish brown

(10YR 5/2) loam; moderate fine and medium

subangular blocky structure; firm; common fine

roots; about 2 percent mixed gravel; neutral;

gradual wavy boundary.

2C—52 to 80 inches; yellowish brown (10YR 5/8)

loam; massive; firm; common fine light gray (10YR

7/1) soft carbonate threads; about 2 percent mixed

gravel; common fine and medium prominent

grayish brown (2.5YR 5/2) redoximorphic

depletions; strongly effervescent; moderately

alkaline.

Range in Characteristics

Thickness of the mollic epipedon: 14 to 20 inches

Depth to till: 14 to 26 inches

Ap and A horizons:

Hue—10YR

Value—2 or 3

Chroma—1 or 2

Texture—loam, clay loam, silty clay loam, or silt

loam

Bg or Bw horizon:

Hue—10YR or 2.5Y

Value—4 or 5

Chroma—2 to 4

Texture—loam, clay loam, silty clay loam, or silt

loam; a stone line is commonly at the lower

boundary of this horizon

2Bw horizon:

Hue—10YR or 2.5Y

Value—4 or 5
106 Soil Survey of

Chroma—2 to 8

Texture—loam, clay loam, or sandy clay loam

2C horizon:

Hue—10YR or 7.5YR

Value—5

Chroma—3 to 8

Texture—loam or sandy clay loam

Riceville Series

Typical Pedon

Riceville loam, 1 to 4 percent slopes, in a cultivated

field; Howard County, Iowa; 510 feet west and 73 feet

south of the northeast corner of sec. 25, T. 99 N., R. 13

W.; USGS Lourdes NW topographic quarter

quadrangle; lat. 43 degrees 22 minutes 14.0 seconds

N. and long. 92 degrees 19 minutes 07.98 seconds W.,

NAD 83:

Ap—0 to 6 inches; black (10YR 2/1) loam, very dark

brown (10YR 2/2) kneaded, dark gray (10YR 4/1)

dry; moderate fine granular structure; friable; many

roots; strongly acid; abrupt smooth boundary.

E—6 to 9 inches; dark grayish brown (10YR 4/2) loam;

weak medium platy structure parting to weak fine

subangular blocky; friable; discontinuous very dark

grayish brown (10YR 3/2) coatings and some

mixing of very dark brown (10YR 2/2); few fine

faint dark yellowish brown (10YR 4/4)

redoximorphic concentrations; very strongly acid;

clear smooth boundary.

EB—9 to 15 inches; dark grayish brown (2.5Y 4/2) and

brown (10YR 4/3) loam; weak fine subangular

blocky structure; friable; discontinuous dark

grayish brown (2.5Y 4/2) silt and very fine sand

coatings on faces of peds; common fine faint dark

yellowish brown (10YR 4/4) redoximorphic

concentrations; very strongly acid; gradual smooth

boundary.

Bt1—15 to 20 inches; dark grayish brown (2.5Y 4/2)

clay loam; weak fine subangular blocky structure;

firm; few thin discontinuous clay films; nearly

continuous dark grayish brown (2.5Y 4/2) silt and

very fine sand coatings on faces of peds; pebble

band at a depth of 20 inches; common fine

prominent yellowish brown (10YR 5/6)

redoximorphic concentrations; very strongly acid;

clear smooth boundary.

2Bt2—20 to 27 inches; mottled gray (5Y 5/1) and

yellowish brown (10YR 5/6) clay loam; gray (5Y

5/1) on faces of peds; moderate medium

subangular blocky structure; very firm; few thin

discontinuous clay films; some pebbles; few fine

prominent strong brown (7.5YR 5/8)

redoximorphic concentrations; very strongly acid;

clear wavy boundary.

2Bt3—27 to 42 inches; mottled gray (5Y 5/1) and

yellowish brown (10YR 5/6) clay loam; moderate

coarse prismatic structure parting to moderate

medium subangular blocky; very firm; faces of

large prisms and smaller peds are gray (5Y 5/1) in

very thin coatings with a few sand grains showing

through; few thin discontinuous very dark gray (N

3/0) clay films on faces of prisms and peds in the

upper part and in a few root channels; some

pebbles; few fine prominent strong brown (7.5YR

5/8) redoximorphic concentrations; strongly acid;

clear wavy boundary.

2BC—42 to 60 inches; mottled gray (5Y 5/1) and

yellowish brown (10YR 5/8) clay loam; weak

coarse prismatic structure parting to weak coarse

subangular blocky; firm; some pebbles; slightly

effervescent; slightly alkaline.

Range in Characteristics

Depth to till: 14 to 24 inches

Depth to carbonates: 30 to 50 inches

Ap or A horizon:

Hue—10YR

Value—2 or 3

Chroma—1 or 2

Texture—loam or silt loam

E and EB horizons:

Hue—10YR or 2.5Y

Value—3 to 5

Chroma—2

Texture—loam or silt loam

Bt horizon:

Hue—10YR or 2.5Y

Value—4

Chroma—2 or 3

Texture—clay loam

2Bt horizon:

Hue—10YR, 7.5YR, 2.5Y, or 5Y

Value—5 or 6

Chroma—1 to 8

Texture—clay loam

2C horizon (if it occurs):

Hue—10YR, 7.5YR, 2.5Y, or 5Y

Value—5 or 6

Chroma—1 to 8

Texture—clay loam
Black Hawk County, Iowa 107

Rockton Series

Typical Pedon

Rockton loam, 30 to 40 inches to limestone, 2 to 5

percent slopes, in a grass field; 130 feet north and

1,150 feet east of the southwest corner of sec. 23, T.

87 N., R. 12 W.; USGS LaPorte City NW topographic

quarter quadrangle; lat. 42 degrees 19 minutes 37

seconds N. and long. 92 degrees 12 minutes 59

seconds W., NAD 83:

A—0 to 13 inches; very dark brown (10YR 2/2) loam,

dark grayish brown (10YR 4/2) dry; moderate fine

granular structure; friable; many very fine and fine

roots; many very fine tubular pores; neutral;

gradual smooth boundary.

Bt1—13 to 21 inches; brown (10YR 4/3) loam; weak

fine subangular blocky structure; friable; common

very fine roots; common very fine tubular pores;

common faint discontinuous dark brown (10YR

3/3) clay films on faces of peds; slightly acid; clear

smooth boundary.

Bt2—21 to 28 inches; dark yellowish brown (10YR 4/4)

loam; weak fine subangular blocky structure;

friable; common very fine roots; common very fine

tubular pores; common faint discontinuous brown

(10YR 4/3) clay films on faces of peds; slightly

acid; gradual smooth boundary.

Bt3—28 to 33 inches; yellowish brown (10YR 5/4)

sandy clay loam; weak medium subangular

blocky structure; friable; few very fine roots;

common very fine tubular pores; few faint

discontinuous dark yellowish brown (10YR 4/4)

clay films on faces of peds; slightly acid; clear

smooth boundary.

2R—33 inches; limestone bedrock.

Range in Characteristics

Thickness of the mollic epipedon: 10 to 18 inches

Depth to bedrock: 30 to 40 inches

Ap or A horizon:

Hue—10YR

Value—2 or 3

Chroma—1 or 2

Texture—loam, fine sandy loam, or silt loam

Bt horizon:

Hue—10YR, 7.5YR, or 5YR

Value—4 or 5

Chroma—3 or 4

Texture—loam, sandy clay loam, or clay loam

Sattre Series

Typical Pedon

Sattre loam, 0 to 2 percent slopes, in a hayfield;

Benton County, Iowa; 550 feet east and 1,250 feet

south of the center of sec. 2, T. 85 N., R. 10 W.; USGS

Center Point Northwest NW topographic quarter

quadrangle; lat. 42 degrees 11 minutes 57.0 seconds

N. and long. 91 degrees 58 minutes 42.13 seconds W.,

NAD 83:

Ap—0 to 8 inches; very dark grayish brown (10YR 3/2)

loam, grayish brown (10YR 5/2) dry; weak fine

granular structure; friable; slightly acid; clear

smooth boundary.

E—8 to 13 inches; dark grayish brown (10YR 4/2)

loam; weak medium platy structure; friable; very

dark grayish brown (10YR 3/2) organic coatings

on vertical faces of peds; distinct light brownish

gray (10YR 6/2) (dry) sand and silt coatings on

vertical faces of peds; slightly acid; clear wavy

boundary.

BE—13 to 17 inches; brown (10YR 4/3) loam;

moderate medium subangular blocky structure

parting to moderate fine subangular blocky; friable;

dark brown (10YR 3/3) organic coatings on

vertical faces of peds; slightly acid; gradual

smooth boundary.

Bt1—17 to 24 inches; dark yellowish brown (10YR 4/4)

loam; moderate medium angular and subangular

blocky structure; friable; few distinct clay films on

vertical faces of peds; clay-lined surfaces along

pores and root channels; brown (10YR 4/3)

organic coatings on vertical faces of peds; light

brownish gray (10YR 6/2) (dry) silt and sand

coatings on vertical faces of peds; moderately

acid; gradual smooth boundary.

Bt2—24 to 32 inches; dark yellowish brown (10YR 4/4)

loam; moderate medium angular and subangular

blocky structure; friable; many distinct clay films on

vertical faces of peds; dark brown (10YR 4/3)

organic coatings on peds; moderately acid; clear

smooth boundary.

BC—32 to 35 inches; yellowish brown (10YR 5/6)

sandy loam; moderate coarse subangular blocky

structure; friable; few distinct dark yellowish brown

(10YR 4/3) clay films on vertical faces of peds;

moderately acid; clear smooth boundary.

2E—35 to 40 inches; yellowish brown (10YR 5/6)

sand; weak coarse subangular blocky structure;

very friable; clay bridging between sand grains;

moderately acid; gradual smooth boundary.
108 Soil Survey of

2E&Bt—40 to 60 inches; brownish yellow (10YR 6/6)

sand (E); single grain; loose; lamellae of brown

(7.5YR 5/4) sandy loam 1 inch thick (Bt) at depths

of 45, 49, and 53 inches; about 10 percent gravel;

moderately acid.

Range in Characteristics

Depth to sand and gravel: 32 to 40 inches

Ap or A horizon:

Hue—10YR

Value—2 or 3

Chroma—1 or 2

Texture—loam

E and BE horizons:

Hue—10YR

Value—4

Chroma—2 or 3

Texture—loam

Bt horizon:

Hue—10YR or 7.5YR

Value—4 or 5

Chroma—3 to 6

Texture—loam, clay loam, or sandy clay loam

BC horizon (if it occurs):

Hue—10YR

Value—4 or 5

Chroma—4 to 6

Texture—sandy loam

2E horizon and E part of the 2E&Bt horizon:

Hue—10YR or 7.5YR

Value—5 or 6

Chroma—4 to 6

Texture—sand, coarse sand, gravelly sand, or

gravelly coarse sand

Bt part of the 2E&Bt horizon:

Hue—7.5YR or 10YR

Value—5 or 6

Chroma—4 to 6

Texture—sandy loam or sandy clay loam

Saude Series

Typical Pedon

Saude loam, 0 to 2 percent slopes, in a cultivated field;

1,500 feet north and 450 feet west of the southeast

corner of sec. 24, T. 88 N., R. 12 W.; USGS Gilbertville

SE topographic quarter quadrangle; lat. 42 degrees 25

minutes 02.6 seconds N. and long. 92 degrees 10

minutes 55.4 seconds W., NAD 83:

Ap—0 to 8 inches; very dark brown (10YR 2/2) loam,

very dark grayish brown (10YR 3/2) dry; weak

medium subangular blocky structure; friable;

common very fine and fine roots; common very

fine tubular pores; moderately acid; abrupt smooth

boundary.

A—8 to 16 inches; very dark grayish brown (10YR 3/2)

loam, grayish brown (10YR 5/2) dry; weak fine

and medium subangular blocky structure; friable;

common very fine roots; common very fine

tubular pores; moderately acid; clear smooth

boundary.

Bw1—16 to 25 inches; brown (10YR 4/3) loam; weak

fine and medium subangular blocky structure;

friable; few very fine roots; common very fine

tubular pores; common faint discontinuous dark

brown (10YR 3/3) organic coatings on faces of

peds; moderately acid; gradual smooth boundary.

Bw2—25 to 30 inches; dark yellowish brown (10YR

4/4) sandy loam; weak medium subangular blocky

structure; very friable; few very fine roots; common

faint discontinuous brown (10YR 4/3) organic

coatings on faces of peds; moderately acid; clear

smooth boundary.

2C1—30 to 42 inches; strong brown (7.5YR 5/6)

loamy sand; single grain; loose; about 10 percent

mixed gravel; moderately acid; gradual smooth

boundary.

2C2—42 to 80 inches; yellowish brown (10YR 5/6)

gravelly coarse sand; single grain; loose; about 20

percent mixed gravel; slightly acid.

Range in Characteristics

Thickness of the mollic epipedon: 11 to 16 inches

Depth to sand and gravel: 20 to 30 inches

Ap and A horizons:

Hue—10YR

Value—2 or 3

Chroma—1 or 2

Texture—loam

Bw horizon:

Hue—10YR or 7.5YR

Value—4 or 5

Chroma—3 to 6

Texture—loam or sandy loam

2BC or 2C horizon:

Hue—10YR or 7.5YR

Value—4 or 5

Chroma—4 to 6

Texture—loamy sand, sand, or coarse sand or the

gravelly analogs of these textures
Black Hawk County, Iowa 109

Sawmill Series

Typical Pedon

Sawmill silty clay loam, 0 to 2 percent slopes,

occasionally flooded, in a cultivated field; 900 feet

north and 150 feet west of the southeast corner of sec.

18, T. 87 N., R. 13 W.; USGS Buckingham NE

topographic quarter quadrangle; lat. 42 degrees 20

minutes 36 seconds N. and long. 92 degrees 23

minutes 49.3 seconds W., NAD 83:

Ap—0 to 10 inches; black (10YR 2/1) silty clay loam,

very dark gray (10YR 3/1) dry; weak fine and

medium subangular blocky structure; friable;

common very fine and fine roots; common very

fine tubular pores; neutral; abrupt smooth

boundary.

A1—10 to 19 inches; very dark gray (10YR 3/1) silty

clay loam, dark gray (10YR 4/1) dry; moderate fine

subangular blocky structure parting to moderate

fine granular; friable; common very fine roots;

common very fine tubular pores; neutral; gradual

smooth boundary.

A2—19 to 29 inches; very dark gray (10YR 3/1) silty

clay loam, dark gray (10YR 4/1) dry; moderate fine

subangular blocky structure; friable; few very fine

roots; common very fine tubular pores; neutral;

clear smooth boundary.

Bg1—29 to 35 inches; dark gray (2.5Y 4/1) silty clay

loam; moderate fine subangular blocky structure;

friable; few very fine roots; common very fine

tubular pores; common distinct discontinuous very

dark gray (10YR 3/1) organic coatings on faces of

peds; neutral; clear smooth boundary.

Bg2—35 to 46 inches; dark grayish brown (2.5Y 4/2)

silty clay loam; weak fine and medium subangular

blocky structure; friable; common very fine tubular

pores; few fine and medium very dark gray (7.5YR

3/1) masses of iron-manganese; common fine and

medium prominent strong brown (7.5YR 5/6)

redoximorphic concentrations; neutral; gradual

smooth boundary.

Bg3—46 to 59 inches; grayish brown (2.5Y 5/2) silty

clay loam; weak coarse subangular blocky

structure; friable; few very fine tubular pores;

common fine and medium prominent strong brown

(7.5YR 5/6) redoximorphic concentrations; neutral;

clear smooth boundary.

Cg—59 to 80 inches; grayish brown (2.5Y 5/2) clay

loam; massive; friable; few fine prominent strong

brown (7.5YR 5/6) redoximorphic concentrations;

neutral.

Range in Characteristics

Thickness of the mollic epipedon: 24 to 36 inches

Ap and A horizons:

Hue—10YR, 2.5Y, 5Y, or N

Value—2 or 3

Chroma—0 to 2

Texture—silty clay loam

Bg horizon:

Hue—10YR, 2.5Y, or 5Y

Value—3 to 6

Chroma—1 or 2

Texture—silty clay loam, clay loam, or loam

Cg horizon:

Hue—10YR, 2.5Y, or 5Y

Value—3 to 6

Chroma—1 or 2

Texture—clay loam, sandy loam, silt loam, silty

clay loam, or silty clay

Sigglekov Series

Typical Pedon

Sigglekov loam, in an area of Sigglekov-Fluvaquents,

channeled-Aquents, ponded, complex, 0 to 2 percent

slopes, frequently flooded; in a timbered area of

bottom land; 2,450 feet north and 350 feet east of the

southwest corner of sec. 23, T. 90 N., R. 11 W.; USGS

Littleton NW topographic quarter quadrangle; lat. 42

degrees 35 minutes 34.30 seconds N. and long. 92

degrees 07 minutes 12.19 seconds W., NAD 83:

A—0 to 9 inches; about 50 percent very dark grayish

brown (10YR 3/2) and 50 percent very dark gray

(10YR 3/1) loam, dark grayish brown (10YR 4/2)

dry; moderate fine granular structure; friable;

common fine and medium roots; common fine

tubular pores; neutral; clear smooth boundary.

C1—9 to 15 inches; dark yellowish brown (10YR 4/4)

sandy loam; massive; very friable; common fine

and medium roots; common fine prominent strong

brown (7.5YR 5/8) redoximorphic concentrations;

common fine distinct light brownish gray (10YR

6/2) redoximorphic depletions; neutral; clear

smooth boundary.

C2—15 to 20 inches; strong brown (7.5YR 4/6) sand;

single grain; loose; common fine roots; neutral;

clear smooth boundary.

C3—20 to 35 inches; yellowish brown (10YR 5/4)

sand; single grain; loose; neutral; clear smooth

boundary.
110 Soil Survey of

C4—35 to 80 inches; yellowish brown (10YR 5/4)

coarse sand; single grain; loose; neutral.

Range in Characteristics

A horizon:

Hue—10YR

Value—2 or 3

Chroma—1 to 3

Texture—loam, silt loam, or sandy loam

C horizon:

Hue—2.5Y, 10YR, or 7.5YR

Value—4 to 6

Chroma—1 to 6

Texture—loamy sand, sand, coarse sand, or

sandy loam

Sparta Series

Typical Pedon

Sparta loamy fine sand, 2 to 5 percent slopes, in a

cultivated field; 1,280 feet north and 320 feet east of

the southwest corner of sec. 6, T. 90 N., R. 13 W.;

USGS Waverly SE topographic quarter quadrangle;

lat. 42 degrees 37 minutes 54.8 seconds N. and long.

92 degrees 26 minutes 05.9 seconds W., NAD 83:

Ap—0 to 9 inches; very dark grayish brown (10YR 3/2)

loamy fine sand, dark grayish brown (10YR 4/2)

dry; weak coarse subangular blocky structure;

very friable; common very fine and fine roots;

moderately acid; clear smooth boundary.

A—9 to 19 inches; very dark grayish brown (10YR 3/2)

loamy fine sand, dark grayish brown (10YR 4/2)

dry; weak coarse subangular blocky structure;

very friable; common very fine roots; moderately

acid; gradual smooth boundary.

Bw—19 to 38 inches; brown (7.5YR 4/4) loamy fine

sand; weak coarse subangular blocky structure;

very friable; few very fine roots; moderately acid;

gradual smooth boundary.

C1—38 to 65 inches; brown (7.5YR 5/4) fine sand;

single grain; loose; moderately acid; gradual

smooth boundary.

C2—65 to 80 inches; brownish yellow (10YR 6/6) fine

sand; single grain; loose; slightly acid.

Range in Characteristics

Thickness of the mollic epipedon: 10 to 24 inches

Ap and A horizons:

Hue—10YR or 7.5YR

Value—2 or 3

Chroma—1 or 2

Texture—loamy fine sand, loamy sand, fine sand,

or sand

Bw horizon:

Hue—10YR or 7.5YR

Value—3 to 6

Chroma—3 to 6

Texture—loamy fine sand, loamy sand, fine sand,

or sand

C horizon:

Hue—10YR or 7.5YR

Value—4 to 6

Chroma—3 to 6

Texture—sand or fine sand

Spillville Series

Typical Pedon

Spillville loam, in an area of Spillville-Coland complex,

0 to 2 percent slopes, occasionally flooded, in a

cultivated field; 2,100 feet north and 1,050 feet west of

the southeast corner of sec. 19, T. 87 N., R. 11 W.;

USGS LaPorte City NE topographic quarter

quadrangle; lat. 42 degrees 19 minutes 55.8 seconds

N. and long. 92 degrees 09 minutes 58.4 seconds W.,

NAD 83:

Ap—0 to 8 inches; black (10YR 2/1) loam, very dark

gray (10YR 3/1) dry; weak medium subangular

blocky structure; friable; many very fine and fine

roots; common fine tubular pores; neutral; abrupt

smooth boundary.

A1—8 to 15 inches; very dark brown (10YR 2/2) loam,

very dark grayish brown (10YR 3/2) dry; weak fine

and medium subangular blocky structure; friable;

common very fine and fine roots; common very

fine tubular pores; neutral; clear smooth boundary.

A2—15 to 22 inches; very dark brown (10YR 2/2)

loam, very dark grayish brown (10YR 3/2) dry;

weak fine and medium subangular blocky

structure; friable; common very fine roots;

common very fine tubular pores; neutral; clear

smooth boundary.

A3—22 to 37 inches; very dark grayish brown (10YR

3/2) loam, dark grayish brown (10YR 4/2) dry;

weak medium subangular blocky structure; friable;

few very fine roots; common very fine tubular

pores; neutral; clear smooth boundary.

A4—37 to 55 inches; very dark gray (10YR 3/1) loam;

weak coarse subangular blocky structure; friable;

few fine prominent dark yellowish brown (10YR

4/6) redoximorphic concentrations; neutral; clear

smooth boundary.
Black Hawk County, Iowa 111

C—55 to 80 inches; very dark gray (10YR 3/1) and

light brownish gray (10YR 4/2), stratified loam and

loamy sand; single grain; loose; few fine prominent

dark yellowish brown (10YR 4/6) redoximorphic

concentrations; neutral.

Range in Characteristics

Thickness of the mollic epipedon: More than 36 inches

Depth to carbonates: More than 40 inches

Ap and A horizons:

Hue—10YR

Value—2 or 3

Chroma—1 or 2

Texture—loam or silt loam

C horizon:

Hue—10YR or 2.5Y

Value—3 or 4

Chroma—1 or 2

Texture—loam, sandy clay loam, sandy loam, or

loamy sand

Tripoli Series

Typical Pedon

Tripoli clay loam, 0 to 2 percent slopes, in a cultivated

field; 2,550 feet south and 800 feet west of the

northeast corner of sec. 10, T. 90 N., R. 12 W.; USGS

Dunkerton NW topographic quarter quadrangle; lat. 42

degrees 37 minutes 17.2 seconds N. and long. 92

degrees 14 minutes 27.9 seconds W., NAD 83:

Ap—0 to 8 inches; black (10YR 2/1) clay loam, very

dark gray (10YR 3/1) dry; weak fine and medium

subangular blocky structure; friable; common very

fine and fine roots; common very fine tubular

pores; neutral; abrupt smooth boundary.

A—8 to 17 inches; black (10YR 2/1) clay loam, very

dark gray (10YR 3/1) dry; weak fine subangular

blocky structure; friable; common very fine roots;

common very fine tubular pores; neutral; clear

smooth boundary.

Bg—17 to 26 inches; dark grayish brown (2.5Y 4/2)

loam; weak fine subangular blocky structure;

friable; few very fine roots; common very fine

tubular pores; discontinuous stone line consisting

of rounded gravel and cobbles 1 to 6 inches in

diameter (5 to 10 percent of this horizon); common

fine and medium prominent strong brown (7.5YR

5/6) redoximorphic concentrations; neutral; clear

smooth boundary.

2Bw—26 to 41 inches; about 60 percent yellowish

brown (10YR 5/6) and 40 percent yellowish brown

(10YR 5/4) loam; weak medium subangular blocky

structure; firm; few very fine roots; common very

fine tubular pores; common fine and medium

prominent strong brown (7.5YR 5/8) redoximorphic

concentrations; neutral; abrupt smooth boundary.

2C1—41 to 63 inches; about 60 percent yellowish

brown (10YR 5/6) and 40 percent brown (2.5Y

5/2) loam; massive; firm; common fine and

medium masses of lime; common fine and

medium prominent strong brown (7.5YR 5/8)

redoximorphic concentrations; strongly effervescent;

moderately alkaline; gradual smooth boundary.

2C2—63 to 80 inches; about 70 percent yellowish

brown (10YR 5/6) and 30 percent grayish brown

(10YR 5/2) loam; massive; firm; common fine and

medium masses of lime; common fine and

medium prominent strong brown (7.5YR 5/8)

redoximorphic concentrations; strongly

effervescent; moderately alkaline.

Range in Characteristics

Thickness of the mollic epipedon: 14 to 20 inches

Depth to till: 18 to 28 inches

Depth to carbonates: 36 to 42 inches

Ap and A horizons:

Hue—10YR or N

Value—2 or 3

Chroma—0 or 1

Texture—clay loam or silty clay loam

Bg or Bw horizon:

Hue—10YR, 2.5Y, or 5Y

Value—3 to 5

Chroma—1 to 6

Texture—clay loam or loam; a stone line is

commonly at the lower boundary of this horizon

2Bw horizon:

Hue—10YR, 2.5Y, or 5Y

Value—3 to 5

Chroma—1 to 6

Texture—loam, clay loam, or sandy clay loam

2C horizon:

Hue—10YR, 2.5Y, or 5Y

Value—3 to 5

Chroma—1 to 6

Texture—loam, clay loam, or sandy clay loam

Wapsie Series

Typical Pedon

Wapsie loam, 1 to 3 percent slopes, in a cultivated

field; 230 feet north and 640 feet west of the southeast

corner of sec. 15, T. 90 N., R. 11 W.; USGS Littleton
112 Soil Survey of

NW topographic quarter quadrangle; lat. 42 degrees

35 minutes 57.7 seconds N. and long. 92 degrees 07

minutes 28.5 seconds W., NAD 83:

Ap—0 to 8 inches; very dark brown (10YR 2/2) loam,

very dark grayish brown (10YR 3/2) dry; weak

medium subangular blocky structure; friable;

common very fine and fine roots; common very

fine tubular pores; neutral; abrupt smooth

boundary.

BE—8 to 13 inches; brown (10YR 4/3) loam; weak fine

and medium subangular blocky structure; friable;

common very fine roots; common very fine tubular

pores; neutral; clear smooth boundary.

Bt1—13 to 20 inches; dark yellowish brown (10YR 4/4)

loam; weak fine and medium subangular blocky

structure; very friable; few very fine roots; common

very fine tubular pores; few faint discontinuous

brown (10YR 4/3) clay films on faces of peds;

slightly acid; clear smooth boundary.

Bt2—20 to 29 inches; yellowish brown (10YR 5/6)

loam; weak medium subangular blocky structure;

very friable; few very fine roots; few very fine

tubular pores; few distinct discontinuous yellowish

brown (10YR 5/4) clay films on faces of peds;

slightly acid; clear smooth boundary.

2C1—29 to 36 inches; yellowish brown (10YR 5/4)

loamy sand; single grain; loose; about 5 percent

gravel; moderately acid; clear smooth boundary.

2C2—36 to 42 inches; brown (10YR 5/4) gravelly

sand; single grain; loose; about 15 percent gravel;

moderately acid; gradual smooth boundary.

2C3—42 to 80 inches; light yellowish brown (10YR

5/4) sand; single grain; loose; about 5 percent

gravel; moderately acid.

Range in Characteristics

Depth to sand and gravel: 20 to 36 inches

Ap or A horizon:

Hue—10YR

Value—2 or 3

Chroma—1 or 2

Texture—sandy loam, sandy clay loam, loam, or

silt loam

BE or E horizon:

Hue—10YR

Value—4 or 5

Chroma—2 or 3

Texture—sandy loam, sandy clay loam, loam, or

silt loam

Bt or BC horizon:

Hue—10YR or 7.5YR

Value—4 or 5

Chroma—3 to 8

Texture—sandy loam, sandy clay loam, or loam

2C horizon:

Hue—10YR or 7.5YR

Value—5

Chroma—4 to 6

Texture—loamy sand, sand, gravelly loamy sand,

or gravelly sand

Watseka Series

Typical Pedon

Watseka loamy fine sand, 1 to 3 percent slopes;

Buchanan County, Iowa; 2,013 feet east and 130 feet

north of the southwest corner of sec. 31, T. 90 N., R.

10 W.; USGS Littleton NW topographic quarter

quadrangle; lat. 42 degrees 33 minutes 17.80 seconds

N. and long. 92 degrees 04 minutes 55.32 seconds W.,

NAD 83:

Ap—0 to 8 inches; very dark grayish brown (10YR 3/2)

loamy fine sand, dark grayish brown (10YR 4/2)

dry; weak fine granular structure; very friable;

neutral; abrupt smooth boundary.

A—8 to 17 inches; very dark grayish brown (10YR 3/2)

loamy fine sand, dark grayish brown (10YR 4/2)

dry; weak coarse subangular blocky structure;

very friable; slightly acid; clear smooth boundary.

Bg—17 to 23 inches; mottled grayish brown (2.5Y 5/2),

dark grayish brown (10YR 4/2), and brown (7.5YR

4/4) loamy fine sand; weak coarse subangular

blocky structure; very friable; slightly acid; gradual

smooth boundary.

BCg—23 to 34 inches; brown (10YR 4/3) loamy fine

sand; weak fine subangular blocky structure; very

friable; common medium distinct grayish brown

(2.5Y 5/2) and few medium distinct brown (7.5YR

4/2) redoximorphic depletions; a 1

/4- to 1/2-inch

reddish brown horizontal band at a depth of 29

inches; slightly acid; abrupt wavy boundary.

Cg—34 to 60 inches; light brownish gray (2.5Y 6/2)

sand; single grain; loose; slightly acid.

Range in Characteristics

Thickness of the mollic epipedon: 10 to 20 inches

Ap or A horizon:

Hue—10YR

Value—2 or 3

Chroma—1 to 3

Texture—loamy fine sand, loamy sand, fine sand,

or sand
Black Hawk County, Iowa 113

Bg or BCg horizon:

Hue—10YR, 2.5Y, or 5Y

Value—4 to 7

Chroma—2 to 4

Texture—loamy fine sand, loamy sand, fine sand,

or sand

Cg horizon:

Hue—10YR, 2.5Y, or 5Y

Value—4 to 7

Chroma—1 to 4

Texture—loamy fine sand, loamy sand, fine sand,

or sand

Waubeek Series

Typical Pedon

Waubeek silt loam, in an area of Waubeek-Urban land

complex, 5 to 14 percent slopes; in a wooded area;

1,750 feet south and 250 feet west of the northeast

corner of sec. 18, T. 89 N., R. 13 W.; USGS Cedar

Falls SE topographic quarter quadrangle; lat. 42

degrees 31 minutes 18.2 seconds N. and long. 92

degrees 24 minutes 52.8 seconds W., NAD 83:

A—0 to 8 inches; very dark brown (10YR 2/2) silt

loam, dark grayish brown (10YR 4/2) dry; weak

fine granular structure; friable; common fine roots;

neutral; abrupt smooth boundary.

E1—8 to 12 inches; dark grayish brown (10YR 4/2)

and brown (10YR 4/3) silt loam; weak thin platy

and weak fine granular structure; friable; common

fine roots; common faint continuous dark brown

(10YR 3/3) organic coatings on faces of peds;

slightly acid; clear smooth boundary.

E2—12 to 16 inches; very dark grayish brown (10YR

4/3) silt loam; weak thick platy structure; friable;

common fine and medium roots; few faint

discontinuous dark brown (10YR 3/3) organic

coatings on faces of peds; moderately acid; clear

smooth boundary.

Bt1—16 to 23 inches; yellowish brown (10YR 5/4) silty

clay loam; weak fine subangular blocky structure;

friable; common fine and medium roots; few

distinct discontinuous dark brown (10YR 4/3) clay

films on faces of peds; moderately acid; clear

smooth boundary.

Bt2—23 to 31 inches; yellowish brown (10YR 5/4) silty

clay loam; weak fine and medium subangular

blocky structure; friable; common fine roots; few

distinct discontinuous dark brown (10YR 4/3) clay

films on faces of peds; discontinuous stone line

consisting of rounded gravel and cobbles 1 to 6

inches in diameter (5 to 10 percent of this

horizon); moderately acid; gradual smooth

boundary.

2Bt3—31 to 45 inches; strong brown (7.5YR 5/8) clay

loam; moderate fine prismatic structure; firm;

common fine roots; few prominent discontinuous

light brownish gray (10YR 6/2) silt coatings on

faces of peds; about 2 percent mixed gravel;

common fine prominent grayish brown (10YR 5/2)

redoximorphic depletions; moderately acid;

gradual smooth boundary.

2BC—45 to 53 inches; strong brown (7.5YR 5/8) loam;

moderate medium prismatic structure; firm;

common fine roots; few prominent continuous very

dark grayish brown (10YR 3/2) clay films in root

channels and/or pores; about 2 percent mixed

gravel; common fine prominent grayish brown

(10YR 5/2) redoximorphic depletions; common

fine prominent reddish brown (5YR 4/4)

redoximorphic concentrations; strongly acid;

gradual smooth boundary.

2C—53 to 80 inches; yellowish brown (10YR 5/6)

loam; massive; firm; common fine very dark brown

(10YR 2/2) masses of iron-manganese; common

fine prominent grayish brown (10YR 5/2)

redoximorphic depletions; about 2 percent mixed

gravel; neutral.

Range in Characteristics

Depth to till: 20 to 40 inches

Depth to carbonates: More than 45 inches

Ap or A horizon:

Hue—10YR

Value—2 or 3

Chroma—1 or 2

Texture—silt loam

E or BE horizon:

Hue—10YR

Value—4 or 5

Chroma—2 or 3

Texture—silt loam

Bt horizon:

Hue—10YR

Value—4 or 5

Chroma—3 or 4

Texture—silty clay loam or silt loam; a stone line

is commonly at the lower boundary of this

horizon

2Bt horizon:

Hue—10YR or 7.5YR

Value—5
114 Soil Survey of

Chroma—4 to 8

Texture—loam, sandy clay loam, or clay loam

2BC or 2C horizon:

Hue—10YR or 7.5YR

Value—5

Chroma—4 to 8

Texture—loam, sandy clay loam, or clay loam

Waukee Series

Typical Pedon

Waukee loam, 0 to 2 percent slopes, in a cultivated

field; 380 feet north and 2,300 feet west of the

southeast corner of sec. 6, T. 89 N., R. 14 W.; USGS

New Hartford SE topographic quadrangle; lat. 42

degrees 32 minutes 36 seconds N. and long. 92

degrees 32 minutes 36.5 seconds W., NAD 83:

Ap—0 to 8 inches; black (10YR 2/1) loam, very dark

gray (10YR 3/1) dry; weak medium subangular

blocky structure; friable; common very fine and

fine roots; common very fine tubular pores;

neutral; abrupt smooth boundary.

A—8 to 18 inches; very dark brown (10YR 2/2) loam,

dark grayish brown (10YR 4/2) dry; weak fine and

medium subangular blocky structure; friable;

common very fine roots; common very fine tubular

pores; neutral; clear smooth boundary.

Bw1—18 to 24 inches; brown (10YR 4/3) loam; weak

fine and medium subangular blocky structure;

friable; few very fine roots; common very fine

tubular pores; common faint discontinuous dark

brown (10YR 3/3) organic coatings on faces of

peds; moderately acid; clear smooth boundary.

Bw2—24 to 33 inches; brown (10YR 4/3) loam; weak

coarse subangular blocky structure; friable; few

very fine roots; common very fine tubular pores;

common faint discontinuous dark brown (10YR

3/3) organic coatings on faces of peds; moderately

acid; clear smooth boundary.

2C1—33 to 48 inches; yellowish brown (10YR 5/4)

loamy sand; single grain; loose; about 10 percent

mixed gravel; moderately acid; gradual smooth

boundary.

2C2—48 to 80 inches; yellowish brown (10YR 5/4)

sand; single grain; loose; few fine distinct brown

(7.5YR 4/4) redoximorphic concentrations; about

10 percent mixed gravel; slightly acid.

Range in Characteristics

Thickness of the mollic epipedon: 12 to 18 inches

Depth to sand and gravel: 30 to 40 inches

Ap and A horizons:

Hue—10YR

Value—2

Chroma—1 or 2

Texture—loam or silt loam

Bw horizon:

Hue—10YR or 7.5YR

Value—3 to 5

Chroma—3 to 6

Texture—loam or sandy clay loam

2BC or 2C horizon:

Hue—10YR or 7.5YR

Value—4 to 6

Chroma—3 to 8

Texture—loamy sand, sand, gravelly loamy sand,

or gravelly sand

Wiota Series

Typical Pedon

Wiota silty clay loam, 0 to 2 percent slopes, in a

cultivated field; Adams County, Iowa; 2,100 feet north

and 200 feet west of the center of sec. 27, T. 73 N., R.

34 W.; USGS Corning North topographic quadrangle;

lat. 41 degrees 06 minutes 05.5 seconds N. and long.

94 degrees 44 minutes 54.4 seconds W., NAD 83:

Ap—0 to 8 inches; black (10YR 2/1) silty clay loam,

very dark gray (10YR 3/1) dry; weak very fine

granular structure; friable; strongly acid; gradual

smooth boundary.

A1—8 to 15 inches; very dark gray (10YR 3/1) silty

clay loam, dark gray (10YR 4/1) dry; weak very

fine granular structure; friable; moderately acid;

gradual smooth boundary.

A2—15 to 22 inches; very dark gray (10YR 3/1) silty

clay loam, dark gray (10YR 4/1) dry, very dark

grayish brown (10YR 3/2) kneaded; moderate very

fine subangular blocky structure; friable;

moderately acid; gradual smooth boundary.

AB—22 to 28 inches; very dark grayish brown (10YR

3/2) and dark brown (10YR 3/3) silty clay loam,

dark grayish brown (10YR 4/2) and brown (10YR

5/3) dry; faces of peds are very dark gray (10YR

3/1); moderate fine and very fine subangular

blocky structure; friable; moderately acid; gradual

smooth boundary.

Bt1—28 to 38 inches; brown (10YR 4/3) silty clay

loam; weak fine subangular blocky structure;

friable; few thin discontinuous clay films; some

very dark gray wormcasts; some very dark gray
Black Hawk County, Iowa 115

(10YR 3/1) coatings on a few peds; moderately

acid; gradual smooth boundary.

Bt2—38 to 48 inches; brown (10YR 4/3) silty clay

loam; weak medium subangular blocky structure;

firm; few thin discontinuous clay films; few medium

faint grayish brown (10YR 5/2) redoximorphic

depletions; slightly acid; gradual smooth boundary.

C—48 to 64 inches; brown (10YR 4/3) silty clay loam;

massive; some vertical cleavage; firm; many dark

concretions; few fine faint grayish brown (10YR

5/2) redoximorphic depletions and few fine faint

yellowish brown (10YR 5/4) redoximorphic

concentrations; slightly acid.

Range in Characteristics

Thickness of the mollic epipedon: 18 to 32 inches

Depth to carbonates: More than 60 inches

Ap and A horizons:

Hue—10YR

Value—2 or 3

Chroma—1 or 2

Texture—silty clay loam or silt loam

Bt horizon:

Hue—10YR

Value—4 or 5

Chroma—3 or 4

Texture—silty clay loam

C horizon:

Hue—10YR or 2.5Y

Value—4 or 5

Chroma—2 to 6

Texture—silty clay loam or silt loam

117

This section describes the major factors of soil

formation as they relate to the soils in Black Hawk

County. These factors are climate; living organisms;

topography, or relief; parent material; and time.

Climate

The soils in Black Hawk County formed under the

influence of a midcontinental, subhumid climate for at

least 5,000 years (Ruhe, 1956a). Between 5,000 and

16,000 years ago, the climate was conducive to the

growth of forest vegetation. The morphology and

properties of most of the soils indicate that the climate

under which they formed was similar to the present

one. The climate is fairly uniform throughout the county

but is marked by wide seasonal extremes in

temperature. Precipitation is distributed throughout the

year.

Climate is a major factor in determining what soils

form in the various kinds of parent material. It affects

the rate and intensity of hydrolysis, carbonation,

oxidation, and other important chemical reactions in

the soil. Temperature, rainfall, relative humidity, and

length of the frost-free period affect the kind of

vegetation on the soil.

The influence of the general climate in a region is

modified by local conditions in or near the developing

soils. For example, soils on south-facing slopes formed

under a microclimate that is warmer and drier than the

average climate of nearby areas, and the poorly

drained soils on bottom land formed under a wetter

and cooler climate than most of the soils around them.

These local differences influence the characteristics of

the soil and account for some of the differences

among soils in the same climatic region.

Living Organisms

Many changes in climate and vegetation have taken

place in Iowa during the past 28,000 years. The

vegetation 28,000 to 11,000 years ago was dominated

by coniferous forest with a transitional period of birch

and alder. Deciduous forest dominated the vegetation

11,000 to 9,000 years ago. A very dry period occurred

between 9,000 and 3,200 years ago. Prairie vegetation

was dominant during that period. Trees, especially

oak, have invaded the prairie since about 3,200 years

ago, but the prairie vegetation is still dominant.

For the past 3,200 years, the soils in the county

have been influenced by two main kinds of

vegetation—prairie grasses and trees. Big bluestem

and little bluestem were the main prairie grasses. The

trees, which were mainly deciduous, included oak,

hickory, ash, elm, and maple.

Studies of the effects of vegetation on soils similar

to those in the county indicate that vegetation shifted

while soils developed in areas bordering both trees

and grasses. The morphology of the Bassett,

Dunkerton, Franklin, Hayfield, and Wapsie soils

reflects the influence of trees and grasses. Chelsea

soils reflect the influence of trees. Dinsdale, Kenyon,

Readlyn, and Colo soils reflect the influence of

grasses.

In most places, soils that formed under trees are

lighter colored and more acid than soils that formed

under grasses. Also, they have a thinner surface layer

that is lower in organic matter content. The soils in the

county that formed under a shifting vegetation or

mixed grasses and trees have properties that are

intermediate between the properties of soils that

formed under grasses and those of soils that formed

under trees.

Burrowing animals and earthworms help to keep

the soil open and porous. Bacteria and fungi help to

decompose vegetation, thus releasing nutrients for

plants.

Topography

Topography can cause important differences among

soils. It indirectly influences soil formation through its

effect on drainage. The soils in the county range from

level to moderately steep. In many areas of bottom

land, the nearly level soils are frequently flooded and

have a permanent or seasonal high water table. Water

soaks into the nearly level soils that are not flooded.

Much of the rainfall runs off the moderately steep soils

on uplands. The level soils in the county are on broad

upland flats and on stream terraces. The moderately

steep soils are generally on slopes near the major

Formation of the Soils
118 Soil Survey of

streams and their tributaries. The intricate pattern of

upland drainageways indicates that in most of the

county the landscape has been modified by geologic

processes.

Generally, the soils in Black Hawk County that

formed in areas where the seasonal high water table

was well below the subsoil have a yellowish brown

subsoil. These include the Aredale, Dinsdale, and

Dinsmore soils. Klinger, Klingmore, Marquis, Nevin,

and Readlyn soils formed in areas where the seasonal

high water table fluctuated and was periodically high.

Colo, Maxfield, Maxmore, Sawmill, and Tripoli soils

formed under prairie grasses. They have a seasonal

high water table and are poorly drained. They have a

higher organic matter content in the surface layer than

well drained soils that formed under prairie grasses.

Chelsea, Dinsdale, Kenyon, and Sparta soils, which

have a wide range of slope, have some properties that

change as slope increases. Two of these properties

are the depth to carbonates and the thickness of the

surface layer. These properties decrease as the slope

increases.

Parent Material

The accumulation of parent material is the first step

in the development of a soil. Most of the soils in the

county formed in material that was transported from

other locations and redeposited through the action of

glacial ice, water, wind, or gravity. The main kinds of

parent material in the county are drift, alluvium, sandy

eolian material, and loess.

The landscape in the county has been studied in

detail (Ruhe and others, 1968). It was previously

thought of as the Iowan Surface; however, subsurface

investigations and studies have shown that Iowan till

does not exist but that an erosion-surface complex

does exist in the Iowan till region. The Iowan erosional

surface is multilevel. It is arranged in a series of steps

from the major drainageways toward boundary divides.

The highest areas on the Iowan erosional surface,

although not found in the county, are small elliptical

hills or elongated ridges called pahas. Below the

pahas, the Iowan erosional surface cuts into the

Kansan till and a stone line or a layer of sand

separates the loess and the glacial till. The stone line

occurs on all levels of the stepped surfaces. It also

underlies upland drainageways.

Drift is all rock material transported and deposited

by glacial ice, including till and the material sorted by

meltwater. Till is unsorted sediment in which particles

range in size from boulders to clay. The Nebraskan

Glaciation, which was the first of the glacial advances

in the survey area, occurred 750,000 years ago

(Ruhe, 1956a and 1956b). It was followed by the

Kansan Glaciation, which occurred about 500,000

years ago.

In the southwestern part of the county, loess, a silty

material deposited by wind, overlies the till of the

Kansan or Nebraskan Glaciation. The loess is 2 to 5

feet thick. The different kinds of till are not readily

differentiated in the county. Geologic erosion has

removed the loess on some of the side slopes. The till

and paleosols of the glaciations and interglacial

periods have been exposed on these side slopes. The

paleosols developed in the till during the Yarmouth and

Sangamon interglacial stages. This soil development

occurred before the loess was deposited. The soils

were strongly developed and had a gray clayey

subsoil. Donnan soils formed in the gray paleosol. The

gray paleosols remain in a few areas; however, in most

areas geologic erosion has cut into and below the

paleosols into the Kansan and Nebraskan till. In these

places the till is only slightly weathered at the surface.

It was exposed during the Wisconsin Stage of the

Quaternary period (Ruhe, 1969).

The Dinsdale-Klinger-Maxfield association has

some areas of exposed till. The till in this part of the

county was truncated during the early part of the loess

deposition in the Wisconsin age. The truncated till

surface is known as the Iowan erosional surface

(Ruhe, 1969). Several levels of summits occur in a

gradual progression from the stream valleys towards

the low crests that mark the drainage divides. Other

features typical of the Iowan erosional surface are

erratics and pahas. The erratics are large boulders

that are partially buried or lying on the surface of the

soil. The core of the paha is an erosional remnant of

the Kansan till. The Yarmouth-Sangamon paleosol is

intact in the areas of the pahas (Ruhe and others,

1968).

Alluvium is material deposited by water. Alluvial

deposits of Late Wisconsin and Holocene age are on

flood plains and terraces in Black Hawk County. About

20 percent of the soils in the county formed in

alluvium. The major areas of these soils are along the

Cedar River, the Wapsipinicon River, and Black Hawk

Creek and their tributaries. The flood plains and

alluvial terraces along these major drainageways can

be quite large. The flood plain along the Cedar River

south of Waterloo is 0.25 mile to 1.5 miles wide. If

alluvial terraces are added with the flood plain, the

valley is more than 3 miles wide.

Much of the alluvium in the county washed from

soils in the uplands. Because the uplands in the

northern three-quarters of the county are loamy, the

alluvial sediments are loamy. Examples of loamy soils

on flood plains are Coland and Spillville soils. The
Black Hawk County, Iowa 119

alluvium in which the frequently flooded Coland and

Spillville soils formed was deposited very recently. As

a result, these soils exhibit very little soil development.

The occasionally flooded Coland and Spillville soils

generally show some soil development in the subsoil.

The soils on terraces or second bottoms are above

the existing flood plain and generally are not flooded.

Most are underlain by coarser textured material within

a depth of 2 to 5 feet. The coarser textured material is

commonly coarse sand and gravel, but in some areas

it is coarse sand. The silty alluvial soils on terraces

occur in the southwestern one-quarter of the county

and include Nevin, Sawmill, and Wiota soils.

Although the soils on flood plains and terraces

formed in similar kinds of material, the texture of the

soils differs. Nevin, Sawmill, and Wiota soils are silty

and have less than 15 percent sand. Marshan, Lawler,

Saude, and Waukee soils are loamy and contain more

than 15 percent sand. Finchford and Flagler soils are

sandy and are shallower to gravel than the other soils

on flood plains and terraces.

Some of the alluvium has been transported only a

short distance and has accumulated at the foot of the

slope on which it originated. This material is called

local alluvium. It retains many of the characteristics of

the soils from which it has eroded. Ely and Floyd soils

formed in local alluvium.

Sandy eolian material, which is deposited by wind,

covers about 10 percent of the county. It is in the

uplands and on stream terraces along the Cedar and

Wapsipinicon Rivers. It has a much higher content of

sand than the loess deposits and a lower content of

clay. This material occurs on uplands as low mounds

or dunes on ridgetops and side slopes, and it occurs

on stream terraces as flats or gently rolling areas.

The sandy eolian material mainly consists of fine

and very fine quartz that is highly resistant to

weathering. It has been altered appreciably since it

was deposited. Billett, Chelsea, Dickinson, and Sparta

soils formed mainly in sandy eolian material.

Loess covers about 20 percent of the county. It

ranges in depth from about 2 feet to 5 feet. It occurs in

the southwestern part of the county and overlies till.

Dinsdale, Klinger, and Maxfield soils formed in 20 to

40 inches of loess, and Dinsmore, Klingmore, and

Maxmore soils formed in 40 to 60 inches of loess

(fig. 9). All of these soils are on the stable upland

divides of the Kansan till plain.

Time

Time is required for a soil to develop. A young soil

has weakly defined horizons or does not show

evidence of horizon development. Most of the soils on

Figure 9.—An area of the Dinsmore-Klingmore-Maxmore association in southwestern Black Hawk County. These soils formed in 40

to 60 inches of loess overlying till.
120

the flood plains are young soils because the soil

material continues to accumulate and has not been in

place long enough for distinct horizons to develop.

The effects of time are evidenced by the increase of

clay in the subsoil. A higher content of clay in the

subsoil than in the surface layer is an indication that a

high degree of soil profile development has taken

place. This information can be important because soils

that have a high content of clay in the subsoil generally

have poorer drainage.

Soil material generally is removed from soils on

steep slopes before the soils have time to develop a

thick profile and strong horizons. Also, much of the

water runs off the slopes rather than infiltrating into the

soil material, so that even though the material has

been in place for a long time, the soil may exhibit little

development.

Most of the parent material in the survey area is

thousands of years old. The present land surface and

many of the soils are much younger because of recent

geologic erosion (Ruhe, 1969). The oldest soils in the

county formed on upland summits. They include the

Dinsdale, Dinsmore, Kenyon, Readlyn, Klinger,

Klingmore, Marquis, Maxfield, and Maxmore soils.

They may be 14,000 years old (Ruhe, 1956a). Soils

that formed in alluvium or in sandy eolian material are

only a few thousand years old. Hayfield, Saude,

Waukee, and Wiota soils formed on stream terraces,

and Coland and Colo soils formed in alluvium on flood

plains. Chelsea, Dickinson, and Sparta soils, which

formed in sandy eolian material, are younger than the

Hayfield, Saude, Waukee, and Wiota soils. Coland and

Colo soils are younger than the Chelsea, Dickinson,

and Sparta soils. The frequently flooded Spillville and

Sigglekov soils formed in alluvium and are less than

150 years old.
121

American Association of State Highway and Transportation Officials (AASHTO). 2004.

Standard specifications for transportation materials and methods of sampling and

testing. 24th edition.

American Society for Testing and Materials (ASTM). 2005. Standard classification of

soils for engineering purposes. ASTM Standard D2487–00.

Cedar Falls Historical Society. Historical tour of Black Hawk County. [Online]

http://www.cedarnet.org/tour/. Accessed March 26, 2001.

Fouts, William L., and John D. Highland. 1978. Soil survey of Black Hawk County, Iowa.

U.S. Department of Agriculture, Soil Conservation Service.

Prior, Jean C. 1991. Landforms of Iowa. Iowa Department of Natural Resources, Iowa

Geological Survey Bureau.

Ruhe, Robert V. 1956a. Ages and development of soil landscapes in relation to climatic

and vegetational changes in Iowa. Soil Science Society of America Proceedings 20:

264–273.

Ruhe, Robert V. 1956b. Geomorphic surfaces and the nature of soils. Soil Science 82:

441–445.

Ruhe, Robert V. 1969. Quaternary landscapes in Iowa.

Ruhe, Robert V., W.P. Dietz, T.E. Fenton, and G.F. Hall. 1968. Iowan drift problem of

northeastern Iowa. Iowa Geological Survey Report of Investigations 7: 1–40.

Ruhe, Robert V., and P.H. Walker. 1968. Hillslope models and soil formation: I, Open

systems. Transactions of the 9th International Congress of Soil Science, Adelaide,

Australia, volume 4, pp. 551–560.

Soil Survey Division Staff. 1993. Soil survey manual. Soil Conservation Service. U.S.

Department of Agriculture Handbook 18.

Soil Survey Staff. 1998. Keys to soil taxonomy. 8th edition. U.S. Department of

Agriculture, Natural Resources Conservation Service.

Soil Survey Staff. 1999. Soil taxonomy: A basic system of soil classification for making

and interpreting soil surveys. 2nd edition. Natural Resources Conservation Service.

U.S. Department of Agriculture Handbook 436.

References
122

United States Department of Agriculture. 1961. Land capability classification. U.S.

Department of Agriculture Handbook 210.

United States Department of Agriculture. 1981. Land resource regions and major land

resource areas of the United States. Soil Conservation Service. U.S. Department of

Agriculture Handbook 296.

United States Department of Agriculture, Natural Resources Conservation Service.

National soil survey handbook, title 430–VI. [http://soils.usda.gov/technical/]

United States Department of Commerce, Bureau of the Census. 2000. 2000 census—

Redistricting data (Public Law 940–171) summary file, matrices PL1, PL2, PL3, and

PL4.
123

Many of the terms relating to landforms, geology,

and geomorphology are defined in more detail in the

“National Soil Survey Handbook” (available in local

offices of the Natural Resources Conservation Service

or on the Internet).

Ablation till. Loose, relatively permeable earthy

material deposited during the downwasting of

nearly static glacial ice, either contained within or

accumulated on the surface of the glacier.

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.

Alluvium. Unconsolidated material, such as gravel,

sand, silt, clay, and various mixtures of these,

deposited on land by running water.

Alpha,alpha-dipyridyl. A compound that when

dissolved in ammonium acetate is used to detect

the presence of reduced iron (Fe II) in the soil. A

positive reaction implies reducing conditions and

the likely presence of redoximorphic features.

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.

Argillic horizon. A subsoil horizon characterized by

an accumulation of illuvial clay.

Aspect. The direction toward which a slope faces.

Also called slope aspect.

Association, soil. A group of soils or miscellaneous

areas geographically associated in a characteristic

repeating pattern and defined and delineated as a

single map unit.

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 position that forms the steepest and

generally linear, middle portion of a hillslope

(fig. 10). In profile, backslopes are commonly

bounded by a convex shoulder above and a

concave footslope below.

Basal till. Compact till deposited beneath the ice.

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 cationexchange capacity.

Base slope (geomorphology). A geomorphic

component of hills (fig. 10) consisting of the

concave to linear (perpendicular to the contour)

slope that, regardless of the lateral shape, forms

an apron or wedge at the bottom of a hillside

dominated by colluvium and slope-wash

sediments (for example, slope alluvium).

Beach deposits. Material, such as sand and gravel,

that is generally laid down parallel to an active or

relict shoreline of a post-glacial or glacial lake.

Bedding plane. A planar or nearly planar bedding

surface that visibly separates each successive

layer of stratified sediment or rock (of the same or

different lithology) from the preceding or following

layer; a plane of deposition. It commonly marks a

change in the circumstances of deposition and

may show a parting, a color difference, a change

in particle size, or various combinations of these.

The term is commonly applied to any bedding

surface, even one that is conspicuously bent or

deformed by folding.

Bedrock. The solid rock that underlies the soil and

Glossary
124 Soil Survey of

other unconsolidated material or that is exposed at

the surface.

Bedrock-controlled topography. A landscape where

the configuration and relief of the landforms are

determined or strongly influenced by the

underlying bedrock.

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.

Bisequum. Two sequences of soil horizons, each of

which consists of an illuvial horizon and the

overlying eluvial horizons.

Blowout. A saucer-, cup-, or trough-shaped

depression formed by wind erosion on a

preexisting dune or other sand deposit, especially

in an area of shifting sand or loose soil or where

protective vegetation is disturbed or destroyed; the

adjoining accumulation of sand derived from the

depression, where recognizable, is commonly

included. Blowouts are commonly small.

Bottom land. An informal term loosely applied to

various portions of a flood plain.

Boulders. Rock fragments larger than 2 feet (60

centimeters) in diameter.

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.

Calcareous soil. A soil containing enough calcium

carbonate (commonly combined with magnesium

carbonate) to effervesce visibly when treated with

cold, dilute hydrochloric acid.

Canopy. The leafy crown of trees or shrubs. (See

Crown.)

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, or “chain,” of soils on a

landscape that formed in similar kinds of parent

material and under similar climatic conditions but

that 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,

Figure 10.—Landscape relationship of geomorphic components and hillslope positions (modified after Ruhe and Walker, 1968).
Black Hawk County, Iowa 125

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.

Catsteps. See Terracettes.

Channery soil material. Soil material that has, 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.

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. See Redoximorphic features.

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 dense, compact, slowly permeable

subsoil layer that contains much more clay than

the overlying materials, from which it is separated

by a sharply defined boundary. A claypan is

commonly hard when dry and plastic and sticky

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.

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 has 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. Unconsolidated, unsorted earth material

being transported or deposited on side slopes

and/or at the base of slopes by mass movement

(e.g., direct gravitational action) and by local,

unconcentrated runoff.

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.

Concretions. See Redoximorphic features.

Conservation cropping system. Growing crops in

combination with needed cultural and

management practices. In a good conservation

cropping system, the soil-improving crops and

practices more than offset the effects of the soildepleting crops and practices. Cropping systems

are needed on all tilled soils. Soil-improving

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.

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.”

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.

Coprogenous earth (sedimentary peat). A type of

limnic layer composed predominantly of fecal

material derived from aquatic animals.

Corrosion (geomorphology). A process of erosion

whereby rocks and soil are removed or worn away

by natural chemical processes, especially by the

solvent action of running water, but also by other

reactions, such as hydrolysis, hydration,

carbonation, and oxidation.
126 Soil Survey of

Corrosion (soil survey interpretations). 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.

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.

Cropping system. Growing crops according to a

planned system of rotation and management

practices.

Cross-slope farming. Deliberately conducting

farming operations on sloping farmland in such a

way that tillage is across the general slope.

Crown. The upper part of a tree or shrub, including the

living branches and their foliage.

Culmination of the mean annual increment (CMAI).

The average annual increase per acre in the

volume of a stand. Computed by dividing the total

volume of the stand by its age. As the stand

increases in age, the mean annual increment

continues to increase until mortality begins to

reduce the rate of increase. The point where the

stand reaches its maximum annual rate of growth

is called the culmination of the mean annual

increment.

Cutbanks cave (in tables). The walls of excavations

tend to cave in or slough.

Deferred grazing. Postponing grazing or resting

grazing land for a prescribed period.

Delta. A body of alluvium having a surface that is fan

shaped and nearly flat; deposited at or near the

mouth of a river or stream where it enters a body

of relatively quiet water, generally a sea or lake.

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, 20 to 40 inches; shallow, 10 to

20 inches; and very shallow, less than 10 inches.

Diversion (or diversion terrace). A ridge of earth,

generally a terrace, built to protect downslope

areas by diverting runoff from its natural course.

Divide. (a) The line of separation, or (b) the summit

area, or narrow tract of higher ground that

constitutes the watershed boundary between two

adjacent drainage basins (fig. 10); it divides the

surface waters that flow naturally in one direction

from those that flow in the opposite direction.

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.

Drift. A general term applied to all mineral material

(clay, silt, sand, gravel, and boulders) transported

by a glacier and deposited directly by or from the

ice or transported by running water emanating

from a glacier. Drift includes unstratified material

(till) that forms moraines and stratified deposits

that form outwash plains, eskers, kames, varves,

and glaciofluvial sediments. The term is generally

applied to Pleistocene glacial deposits in areas

that no longer contain glaciers.

Drumlin. A low, smooth, elongated oval hill, mound, or

ridge of compact till that has a core of bedrock or

drift. It commonly has a blunt nose facing the

direction from which the ice approached and a

gentler slope tapering in the other direction. The

longer axis is parallel to the general direction of

glacier flow. Drumlins are products of streamline

(laminar) flow of glaciers, which molded the

subglacial floor through a combination of erosion

and deposition.

Duff. A generally firm organic layer on the surface of

mineral soils. It consists of fallen plant material

that is in the process of decomposition and

includes everything from the litter on the surface to

underlying pure humus.

Earthy fill. See Mine spoil.

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 deposit. Sand-, silt-, or clay-sized clastic

material transported and deposited primarily by
Black Hawk County, Iowa 127

wind, commonly in the form of a dune or a sheet

of sand or loess.

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.

Erosion pavement. A surficial lag concentration or

layer of gravel and other rock fragments that

remains on the soil surface after sheet or rill

erosion or wind has removed the finer soil

particles and that tends to protect the underlying

soil from further erosion.

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. Most commonly applied to cliffs

produced by differential erosion. Synonym: scarp.

Esker. A long, narrow, sinuous, steep-sided ridge of

stratified sand and gravel deposited as the bed of

a stream flowing in an ice tunnel within or below

the ice (subglacial) or between ice walls on top of

the ice of a wasting glacier and left behind as high

ground when the ice melted. Eskers range in

length from less than a kilometer to more than 160

kilometers and in height from 3 to 30 meters.

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. An obsolete, informal term loosely

applied to the lowest flood-plain steps that are

subject to regular flooding.

Flaggy soil material. Material that has, 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. The nearly level plain that borders a

stream and is subject to flooding unless protected

artificially.

Flood-plain landforms. A variety of constructional

and erosional features produced by stream

channel migration and flooding. Examples include

backswamps, flood-plain splays, meanders,

meander belts, meander scrolls, oxbow lakes, and

natural levees.

Flood-plain splay. A fan-shaped deposit or other

outspread deposit formed where an overloaded

stream breaks through a levee (natural or artificial)

and deposits its material (commonly coarse

grained) on the flood plain.

Flood-plain step. An essentially flat, terrace-like

alluvial surface within a valley that is frequently

covered by floodwater from the present stream;

any approximately horizontal surface still actively

modified by fluvial scour and/or deposition. May

occur individually or as a series of steps.

Fluvial. Of or pertaining to rivers or streams; produced

by stream or river action.

Footslope. The concave surface at the base of a

hillslope (fig. 10). A footslope is a transition zone

between upslope sites of erosion and transport

(shoulders and backslopes) and downslope sites

of deposition (toeslopes).

Forb. Any herbaceous plant not a grass or a sedge.

Fragipan. A loamy, brittle subsurface horizon low in

porosity and content of organic matter and low or

moderate in clay but high in silt or very fine sand.

A fragipan appears cemented and restricts roots.

When dry, it is hard or very hard and has a

higher bulk density than the horizon or

horizons above. When moist, it tends to rupture
128 Soil Survey of

suddenly under pressure rather than to deform

slowly.

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.

Glaciofluvial deposits. Material moved by glaciers

and subsequently sorted and deposited by

streams flowing from the melting ice. The deposits

are stratified and occur in the form of outwash

plains, valley trains, deltas, kames, eskers, and

kame terraces.

Glaciolacustrine deposits. Material ranging from fine

clay to sand derived from glaciers and deposited

in glacial lakes mainly by glacial meltwater. Many

deposits are bedded or laminated.

Gleyed soil. Soil that formed under poor drainage,

resulting in the reduction of iron and other

elements in the profile and in gray colors.

Graded stripcropping. Growing crops in strips that

grade toward a protected waterway.

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 has 15 to 35

percent, by volume, rounded or angular rock

fragments, not prominently flattened, as much as

3 inches (7.6 centimeters) in diameter.

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 small channel with steep sides caused by

erosion and cut in unconsolidated materials by

concentrated but intermittent flow of water. 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.

Hard bedrock. Bedrock that cannot be excavated

except by blasting or by the use of special

equipment that is not commonly used in

construction.

Hard to reclaim (in tables). Reclamation is difficult

after the removal of soil for construction and other

uses. Revegetation and erosion control are

extremely difficult.

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.

Head slope (geomorphology). A geomorphic

component of hills consisting of a laterally

concave area of a hillside, especially at the head

of a drainageway (fig. 10). The overland waterflow

is converging.

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 generic term for an elevated area 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. Slopes are

generally more than 15 percent. The distinction

between a hill and a mountain is arbitrary and may

depend on local usage.

Hillslope. A generic term for the steeper part of a hill

between its summit and the drainage line, valley flat,

or depression floor at the base of a hill (fig. 10).

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.

L horizon.—A layer of organic and mineral limnic

materials, including coprogenous earth

(sedimentary peat), diatomaceous earth, and

marl.

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
Black Hawk County, Iowa 129

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.

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.

Ice-walled lake plain. A relict surface marking the

floor of an extinct lake basin that was formed on

solid ground and surrounded by stagnant ice in a

stable or unstable superglacial environment on

stagnation moraines. As the ice melted, the lake

plain became perched above the adjacent

landscape. The lake plain is well sorted, generally

fine textured, stratified deposits.

Igneous rock. Rock that was formed by cooling and

solidification of magma and that has not been

changed appreciably by weathering since its

formation. Major varieties include plutonic and

volcanic rock (e.g., 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.

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

Interfluve. A landform composed of the relatively

undissected upland or ridge between two adjacent

valleys containing streams flowing in the same

general direction. An elevated area between two

drainageways that sheds water to those

drainageways.

Interfluve (geomorphology). A geomorphic

component of hills consisting of the uppermost,

comparatively level or gently sloping area of a hill

(fig. 10); shoulders of backwearing hillslopes can

narrow the upland or can merge, resulting in a

strongly convex shape.

Intermittent stream. A stream, or reach of a stream,

that does not flow year-round but that is commonly

dry for 3 or more months out of 12 and whose

channel is generally below the local water table. It

flows only during wet periods or when it receives

ground-water discharge or long, continued

contributions from melting snow or other surface

and shallow subsurface sources.

Iron depletions. See Redoximorphic features.

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.
130 Soil Survey of

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 closegrowing 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.

Kame. A low mound, knob, hummock, or short

irregular ridge composed of stratified sand and

gravel deposited by a subglacial stream as a fan

or delta at the margin of a melting glacier; by a

supraglacial stream in a low place or hole on the

surface of the glacier; or as a ponded deposit on

the surface or at the margin of stagnant ice.

Kame moraine. An end moraine that contains

numerous kames. A group of kames along the

front of a stagnant glacier, commonly comprising

the slumped remnants of a formerly continuous

outwash plain built up over the foot of rapidly

wasting or stagnant ice.

Karst (topography). A kind of topography that formed

in limestone, gypsum, or other soluble rocks by

dissolution and that is characterized by closed

depressions, sinkholes, caves, and underground

drainage.

Knoll. A small, low, rounded hill rising above adjacent

landforms.

Ksat. Saturated hydraulic conductivity. (See

Permeability.)

Lacustrine deposit. Material deposited in lake water

and exposed when the water level is lowered or

the elevation of the land is raised.

Lake bed. The bottom of a lake; a lake basin.

Lake plain. A nearly level surface marking the floor of

an extinct lake filled by well sorted, generally fine

textured, stratified deposits, commonly containing

varves.

Lake terrace. A narrow shelf, partly cut and partly

built, produced along a lakeshore in front of a

scarp line of low cliffs and later exposed when the

water level falls.

Landslide. A general, encompassing term for most

types of mass movement landforms and

processes involving the downslope transport and

outward deposition of soil and rock materials

caused by gravitational forces; the movement may

or may not involve saturated materials. The speed

and distance of movement, as well as the amount

of soil and rock material, vary greatly.

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.

Loess. Material transported and deposited by wind

and consisting dominantly of silt-sized particles.

Low strength. The soil is not strong enough to

support loads.

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.

Marl. An earthy, unconsolidated deposit consisting

chiefly of calcium carbonate mixed with clay in

approximately equal proportions; formed primarily

under freshwater lacustrine conditions but also

formed in more saline environments.

Masses. See Redoximorphic features.
Black Hawk County, Iowa 131

Meander belt. The zone within which migration of a

meandering channel occurs; the flood-plain area

included between two imaginary lines drawn

tangential to the outer bends of active channel

loops.

Meander scar. A crescent-shaped, concave or linear

mark on the face of a bluff or valley wall, produced

by the lateral erosion of a meandering stream that

impinged upon and undercut the bluff.

Meander scroll. One of a series of long, parallel,

close-fitting, crescent-shaped ridges and troughs

formed along the inner bank of a stream meander

as the channel migrated laterally down-valley and

toward the outer bank.

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.

Metamorphic rock. Rock of any origin altered in

mineralogical composition, chemical composition,

or structure by heat, pressure, and movement at

depth in the earth’s crust. Nearly all such rocks

are crystalline.

Mine spoil. An accumulation of displaced earthy

material, rock, or other waste material removed

during mining or excavation. Also called earthy fill.

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. A kind of map unit that has little

or no natural soil and supports little or no

vegetation.

MLRA (major land resource area). A geographic

area characterized by a particular pattern of land

uses, elevation and topography, soils, climate,

water resources, and potential natural vegetation.

Moderately coarse textured soil. Coarse sandy

loam, sandy loam, or fine sandy loam.

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.

Moraine. In terms of glacial geology, a mound, ridge,

or other topographically distinct accumulation of

unsorted, unstratified drift, predominantly till,

deposited primarily by the direct action of glacial

ice in a variety of landforms. Also, a general term

for a landform composed mainly of till (except for

kame moraines, which are composed mainly of

stratified outwash) that has been deposited by a

glacier. Some types of moraines are disintegration,

end, ground, kame, lateral, recessional, and

terminal.

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).

Muck. Dark, finely divided, well decomposed organic

soil material. (See Sapric soil material.)

Mudstone. A blocky or massive, fine grained

sedimentary rock in which the proportions of clay

and silt are approximately equal. Also, a general

term for such material as clay, silt, claystone,

siltstone, shale, and argillite and that should be

used only when the amounts of clay and silt are

not known or cannot be precisely identified.

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 of 6.6 to 7.3.

(See Reaction, soil.)

Nodules. See Redoximorphic features.

Nose slope (geomorphology). A geomorphic

component of hills consisting of the projecting end

(laterally convex area) of a hillside (fig. 10). The

overland waterflow is predominantly divergent.

Nose slopes consist dominantly of colluvium and

slope-wash sediments (for example, slope

alluvium).

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,
132 Soil Survey of

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

Outwash. Stratified and sorted sediments (chiefly

sand and gravel) removed or “washed out” from a

glacier by meltwater streams and deposited in

front of or beyond the end moraine or the margin

of a glacier. The coarser material is deposited

nearer to the ice.

Outwash plain. An extensive lowland area of coarse

textured glaciofluvial material. An outwash plain is

commonly smooth; where pitted, it generally is low

in relief.

Paleoterrace. An erosional remnant of a terrace that

retains the surface form and alluvial deposits of its

origin but was not emplaced by, and commonly

does not grade to, a present-day stream or

drainage network.

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.

Parts per million (ppm). The concentration of a

substance in the soil, such as phosphorus or

potassium, in one million parts of air-dried soil on

a weight per weight basis.

Peat. Unconsolidated material, largely undecomposed

organic matter, that has accumulated under

excess moisture. (See Fibric soil material.)

Ped. An individual natural soil aggregate, such as a

granule, a prism, or a block.

Pedisediment. A layer of sediment, eroded from the

shoulder and backslope of an erosional slope, that

lies on and is being (or was) transported across a

gently sloping erosional surface at the foot of a

receding hill or mountain slope.

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 movement of water through the

soil.

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:

Impermeable ...........................less than 0.0015 inch

Very slow .................................... 0.0015 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

pH value. A numerical designation of acidity and

alkalinity in soil. (See Reaction, soil.)

Phase, soil. A subdivision of a soil series based on

features that affect its use and management, such

as slope, stoniness, and flooding.

Phosphorus. The amount of phosphorus available to

plants at a depth of 30 to 42 inches is expressed

in parts per million and based on the weighted

average of air-dried soil samples. Terms

describing the amount of available phosphorus

are:

Very low ........................................ less than 7.5 ppm

Low ................................................... 7.5 to 13.0 ppm

Medium .......................................... 13.0 to 22.5 ppm

High .......................................... more than 22.5 ppm

Piping (in tables). Formation of subsurface tunnels or

pipelike cavities by water moving through the soil.

Pitted outwash plain. An outwash plain marked by

many irregular depressions, such as kettles,

shallow pits, and potholes, which formed by

melting of incorporated ice masses.

Plastic limit. The moisture content at which a soil

changes from semisolid to plastic.

Plasticity index. The numerical difference between

the liquid limit and the plastic limit; the range of
Black Hawk County, Iowa 133

moisture content within which the soil remains

plastic.

Plateau (geomorphology). A comparatively flat area of

great extent and elevation; specifically, an

extensive land region that is considerably elevated

(more than 100 meters) above the adjacent lower

lying terrain, is commonly limited on at least one

side by an abrupt descent, and has a flat or nearly

level surface. A comparatively large part of a

plateau surface is near summit level.

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.

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.

Pore linings. See Redoximorphic features.

Potassium. The amount of potassium available to

plants at a depth of 12 to 24 inches is expressed

in parts per million and based on the weighted

average of air-dried soil samples. Terms

describing the amount of available potassium are:

Very low ......................................... less than 50 ppm

Low ....................................................... 50 to 79 ppm

Medium .............................................. 79 to 125 ppm

High ............................................more than 125 ppm

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.

Reaction, soil. A measure of acidity or alkalinity of a

soil, expressed as 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

Redoximorphic concentrations. See Redoximorphic

features.

Redoximorphic depletions. See Redoximorphic

features.

Redoximorphic features. Redoximorphic features

are associated with wetness and result from

alternating periods of reduction and oxidation of

iron and manganese compounds in the soil.

Reduction occurs during saturation with water,

and oxidation occurs when the soil is not

saturated. Characteristic color patterns are

created by these processes. The reduced iron and

manganese ions may be removed from a soil if

vertical or lateral fluxes of water occur, in which

case there is no iron or manganese precipitation

in that soil. Wherever the iron and manganese are

oxidized and precipitated, they form either soft

masses or hard concretions or nodules.

Movement of iron and manganese as a result of

redoximorphic processes in a soil may result in

redoximorphic features that are defined as follows:

1. Redoximorphic concentrations.—These are

zones of apparent accumulation of ironmanganese oxides, including:

A. Nodules and concretions, which are

cemented bodies that can be removed from the

soil intact. Concretions are distinguished from

nodules on the basis of internal organization. A

concretion typically has concentric layers that

are visible to the naked eye. Nodules do not

have visible organized internal structure; and

B. Masses, which are noncemented

concentrations of substances within the soil

matrix; and

C. Pore linings, i.e., zones of accumulation

along pores that may be either coatings on pore

surfaces or impregnations from the matrix

adjacent to the pores.
134 Soil Survey of

2. Redoximorphic depletions.—These are zones of

low chroma (chromas less than those in the

matrix) where either iron-manganese oxides

alone or both iron-manganese oxides and clay

have been stripped out, including:

A. Iron depletions, i.e., zones that contain

low amounts of iron and manganese oxides but

have a clay content similar to that of the

adjacent matrix; and

B. Clay depletions, i.e., zones that contain

low amounts of iron, manganese, and clay

(often referred to as silt coatings or skeletans).

3. Reduced matrix.—This is a soil matrix that has

low chroma in situ but undergoes a change in

hue or chroma within 30 minutes after the soil

material has been exposed to air.

Reduced matrix. See Redoximorphic features.

Regolith. All unconsolidated earth materials above

the solid bedrock. It includes material weathered in

place from all kinds of bedrock and alluvial,

glacial, eolian, lacustrine, and pyroclastic deposits.

Relief. The relative difference in elevation between the

upland summits and the lowlands or valleys of a

given region.

Residuum (residual soil material). Unconsolidated,

weathered or partly weathered mineral material

that accumulated as bedrock disintegrated in

place.

Rill. A very small, steep-sided channel resulting from

erosion and cut in unconsolidated materials by

concentrated but intermittent flow of water. A rill

generally is not an obstacle to wheeled vehicles

and is shallow enough to be smoothed over by

ordinary tillage.

Riser. The vertical or steep side slope (e.g.,

escarpment) of terraces, flood-plain steps, or

other stepped landforms; commonly a recurring

part of a series of natural, steplike landforms, such

as successive stream terraces.

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.

Root zone. The part of the soil that can be penetrated

by plant roots.

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 growth of plants. A saline soil

does not contain excess exchangeable sodium.

Sand. As a soil separate, individual rock or mineral

fragments 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.

Sapric soil material (muck). The most highly

decomposed of all organic soil material. Muck has

the least amount of plant fiber, the highest bulk

density, and the lowest water content at saturation

of all organic soil material.

Saturated hydraulic conductivity (Ksat). See

Permeability.

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.

Sedimentary rock. A consolidated deposit of clastic

particles, chemical precipitates, or organic

remains accumulated at or near the surface of the

earth under normal low temperature and pressure

conditions. Sedimentary rocks include

consolidated equivalents of alluvium, colluvium,

drift, and eolian, lacustrine, and marine deposits.

Examples are sandstone, siltstone, mudstone,

claystone, shale, conglomerate, limestone,

dolomite, and coal.

Seepage (in tables). The movement of water through

the soil. Seepage adversely affects the specified

use.

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 that formed by the hardening

of a deposit of clay, silty clay, or silty clay loam and

that has a tendency to split into thin layers.

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. The convex, erosional surface near the top
Black Hawk County, Iowa 135

of a hillslope (fig. 10). A shoulder is a transition

from summit to backslope.

Shrink-swell (in tables). The shrinking of soil when

dry and the swelling when wet. Shrinking and

swelling can damage roads, dams, building

foundations, and other structures. It can also

damage plant roots.

Side slope (geomorphology). A geomorphic

component of hills consisting of a laterally planar

area of a hillside (fig. 10). The overland waterflow

is predominantly parallel. Side slopes are

dominantly colluvium and slope-wash sediments.

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. An indurated silt having the texture and

composition of shale but lacking its fine lamination

or fissility; a massive mudstone in which silt

predominates over clay.

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.

Sinkhole. A closed, circular or elliptical depression,

commonly funnel shaped, characterized by

subsurface drainage and formed either by

dissolution of the surface of underlying bedrock

(e.g., limestone, gypsum, or salt) or by collapse of

underlying caves within bedrock. Complexes of

sinkholes in carbonate-rock terrain are the main

components of karst topography.

Slickensides (pedogenic). Grooved, striated, and/or

glossy (shiny) slip faces on structural peds, such

as wedges; produced by shrink-swell processes,

most commonly in soils that have a high content of

expansive clays.

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.

Slope (in tables). Slope is great enough that special

practices are required to ensure satisfactory

performance of the soil for a specific use.

Slope alluvium. Sediment gradually transported down

the slopes of mountains or hills primarily by

nonchannel alluvial processes (i.e., slope-wash

processes) and characterized by particle sorting.

Lateral particle sorting is evident on long slopes.

In a profile sequence, sediments may be

distinguished by differences in size and/or specific

gravity of rock fragments and may be separated

by stone lines. Burnished peds and sorting of

rounded or subrounded pebbles or cobbles

distinguish these materials from unsorted colluvial

deposits.

Slow refill (in tables). The slow filling of ponds,

resulting from restricted permeability in the soil.

Sodium adsorption ratio (SAR). A measure of the

amount of sodium (Na) relative to calcium (Ca)

and magnesium (Mg) in the water extract from

saturated soil paste. It is the ratio of the Na

concentration divided by the square root of onehalf of the Ca + Mg concentration.

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 and living matter acting on earthy parent

material, as conditioned by relief and by the

passage 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.

Stagnation moraine. A body of drift released by the

melting of a glacier that ceased flowing.

Commonly but not always occurs near ice

margins; composed of till, ice-contact stratified

drift, and small areas of glacial lake sediment.

Typical landforms are knob-and-kettle topography,

locally including ice-walled lake plains.

Stone line. In a vertical cross section, a line formed
136 Soil Survey of

by scattered fragments or a discrete layer of

angular and subangular rock fragments

(commonly a gravel- or cobble-sized lag

concentration) that formerly was draped across a

topographic surface and was later buried by

additional sediments. A stone line generally caps

material that was subject to weathering, soil

formation, and erosion before burial. Many stone

lines seem to be buried erosion pavements,

originally formed by sheet and rill erosion across

the land surface.

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.

Strath terrace. A type of stream terrace; formed as an

erosional surface cut on bedrock and thinly

mantled with stream deposits (alluvium).

Stream terrace. One of a series of platforms in a

stream valley, flanking and more or less parallel to

the stream channel, originally formed near the

level of the stream; represents the remnants of an

abandoned flood plain, stream bed, or valley floor

produced during a former state of fluvial erosion or

deposition.

Stripcropping. Growing crops in a systematic

arrangement of strips or bands that provide

vegetative barriers to wind erosion 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

grain (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.

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. Any surface soil horizon (A, E, AB,

or EB) below the surface layer.

Summit. The topographically highest position of a

hillslope (fig. 10). It has a nearly level (planar or

only slightly convex) surface.

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.

Swale. A slight depression in the midst of generally

level land. A shallow depression in an undulating

ground moraine caused by uneven glacial

deposition.

Taxadjuncts. Soils that cannot be classified in a

series recognized in the classification system.

Such soils are named for a series they strongly

resemble and are designated as taxadjuncts to

that series because they differ in ways too small to

be of consequence in interpreting their use and

behavior. Soils are recognized as taxadjuncts only

when one or more of their characteristics are

slightly outside the range defined for the family of

the series for which the soils are named.

Terminal moraine. An end moraine that marks the

farthest advance of a glacier. It typically has the

form of a massive arcuate or concentric ridge, or

complex of ridges, and is underlain by till and

other types of drift.

Terrace (conservation). 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 generally is 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 (geomorphology). A steplike surface,

bordering a valley floor or shoreline, that

represents the former position of a flood plain,

lake, or seashore. The term is usually applied both

to the relatively flat summit surface (tread) that

was cut or built by stream or wave action and to

the steeper descending slope (scarp or riser) that

has graded to a lower base level of erosion.

Terracettes. Small, irregular steplike forms on steep

hillslopes, especially in pasture, formed by creep

or erosion of surficial materials that may be

induced or enhanced by trampling of livestock,

such as sheep or cattle.

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
Black Hawk County, Iowa 137

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.”

Till. Dominantly unsorted and nonstratified drift,

generally unconsolidated and deposited directly by

a glacier without subsequent reworking by

meltwater, and consisting of a heterogeneous

mixture of clay, silt, sand, gravel, stones, and

boulders; rock fragments of various lithologies are

embedded within a finer matrix that can range

from clay to sandy loam.

Till plain. An extensive area of level to gently

undulating soils underlain predominantly by till and

bounded at the distal end by subordinate

recessional or end moraines.

Tilth, soil. The physical condition of the soil as related

to tillage, seedbed preparation, seedling

emergence, and root penetration.

Toeslope. The gently inclined surface at the base of a

hillslope (fig. 10). Toeslopes in profile are

commonly gentle and linear and are constructional

surfaces forming the lower part of a hillslope

continuum that grades to valley or closeddepression floors.

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.

Trace elements. Chemical elements, for example,

zinc, cobalt, manganese, copper, and iron, in soils

in extremely small amounts. They are essential to

plant growth.

Tread. The flat to gently sloping, topmost, laterally

extensive slope of terraces, flood-plain steps, or

other stepped landforms; commonly a recurring

part of a series of natural steplike landforms, such

as successive stream terraces.

Upland. An informal, general term for the higher

ground of a region, in contrast with a low-lying

adjacent area, such as a valley or plain, or for land

at a higher elevation than the flood plain or low

stream terrace; land above the footslope zone of

the hillslope continuum.

Valley fill. The unconsolidated sediment deposited by

any agent (water, wind, ice, or mass wasting) so

as to fill or partly fill a valley.

Variegation. Refers to patterns of contrasting colors

assumed to be inherited from the parent material

rather than to be the result of poor drainage.

Varve. A sedimentary layer or a lamina or sequence of

laminae deposited in a body of still water within a

year. Specifically, a thin pair of graded

glaciolacustrine layers seasonally deposited,

usually by meltwater streams, in a glacial lake or

other body of still water in front of a glacier.

Water bars. Smooth, shallow ditches or depressional

areas that are excavated at an angle across a

sloping road. They are used to reduce the

downward velocity of water and divert it off and

away from the road surface. Water bars can easily

be driven over if constructed properly.

Weathering. All physical disintegration, chemical

decomposition, and biologically induced changes

in rocks or other deposits at or near the earth’s

surface by atmospheric or biologic agents or by

circulating surface waters but involving essentially

no transport of the altered material.

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.

139

Tables
140 Soil Survey of

Table 1.--Temperature and Precipitation

(Recorded in the period 1961-90 at Waterloo, Iowa)

_______________________________________________________________________________________________________________

 | |

 | Temperature | Precipitation

 | | __________________________________________________________________________________________________

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

 | | | | 10 will have-- | | | will have-- | | _______________________ _____________

 Month |Average|Average|Average| | | Average |Average| | | Average |Average

 | daily | daily | | Maximum | Minimum |number of| | Less | More |number of|snowfall

 |maximum|minimum| |temperature|temperature| growing | |than--|than--|days with|

 | | | | higher | lower | degree | | | |0.10 inch|

 | | | | than-- | than-- | days* | | | | or more | _______________________________________________________________________________________________________________

 | oF | oF | oF | oF | oF | Units | In | In | In | | In

 | | | | | | | | | | |

 January----| 23.7 | 5.4 | 14.6 | 50 | -25 | 0 | 0.80 | 0.35| 1.18| 2 | 6.3

 | | | | | | | | | | |

 February---| 29.4 | 10.7 | 20.0 | 56 | -22 | 0 | 1.08 | .33| 1.69| 2 | 6.9

 | | | | | | | | | | |

 March------| 42.6 | 24.1 | 33.4 | 78 | -6 | 13 | 2.30 | 1.19| 3.27| 5 | 5.7

 | | | | | | | | | | |

 April------| 58.7 | 36.2 | 47.5 | 87 | 14 | 84 | 3.30 | 1.95| 4.51| 6 | 1.7

 | | | | | | | | | | |

 May--------| 71.0 | 47.8 | 59.4 | 91 | 29 | 310 | 4.08 | 2.38| 5.60| 7 | .0

 | | | | | | | | | | |

 June-------| 80.5 | 57.6 | 69.0 | 96 | 41 | 572 | 4.47 | 2.94| 5.87| 6 | .0

 | | | | | | | | | | |

 July-------| 83.9 | 62.2 | 73.0 | 98 | 47 | 714 | 4.83 | 2.64| 6.76| 6 | .0

 | | | | | | | | | | |

 August-----| 81.5 | 59.0 | 70.3 | 97 | 42 | 628 | 3.64 | 1.53| 5.43| 5 | .0

 | | | | | | | | | | |

 September--| 73.2 | 50.0 | 61.6 | 93 | 29 | 358 | 3.51 | 1.46| 5.24| 5 | .0

 | | | | | | | | | | |

 October----| 61.4 | 38.4 | 49.9 | 86 | 17 | 118 | 2.57 | 1.08| 3.83| 5 | .1

 | | | | | | | | | | |

 November---| 44.8 | 26.2 | 35.5 | 70 | 0 | 12 | 1.82 | .64| 2.80| 3 | 3.2

 | | | | | | | | | | |

 December---| 29.1 | 12.0 | 20.6 | 58 | -19 | 1 | 1.33 | .67| 1.91| 3 | 7.9

 | | | | | | | | | | |

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

 | | | | | | | | | | |

 Average---| 56.7 | 35.8 | 46.2 | --- | --- | --- | --- | ---| ---| --- | ---

 | | | | | | | | | | |

 Extreme---| 105 | -34 | --- | 100 | -27 | --- | --- | ---| ---| --- | ---

 | | | | | | | | | | |

 Total-----| --- | --- | --- | --- | --- | 2,809 | 33.72 | 27.38| 39.67| 55 | 31.8

 | | | | | | | | | | | _______________________________________________________________________________________________________________

 * 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).
Black Hawk County, Iowa 141

Table 2.--Freeze Dates in Spring and Fall

(Recorded in the period 1961-90 at Waterloo, Iowa)

_____________________________________________________________

 |

 | 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. 20 | May 2 | May 18

 | | |

 2 years in 10 | | |

 later than-- | Apr. 16 | Apr. 27 | May 13

 | | |

 5 years in 10 | | |

 later than-- | Apr. 8 | Apr. 18 | May 3

 | | |

First freezing | | |

 temperature | | |

 in fall: | | |

 | | |

 1 year in 10 | | |

 earlier than-- | Oct. 6 | Sept. 27 | Sept. 17

 | | |

 2 years in 10 | | |

 earlier than-- | Oct. 11 | Oct. 2 | Sept. 22

 | | |

 5 years in 10 | | |

 earlier than-- | Oct. 21 | Oct. 11 | Sept. 30

 | | | _____________________________________________________________

Table 3.--Growing Season

(Recorded in the period 1961-90 at Waterloo,

 Iowa)

__________________________________________________

 |

 | Daily minimum temperature

 | during growing season

 |___________________________________

 Probability | | |

 | Higher | Higher | Higher

 | than | than | than

 | 24 oF | 28 oF | 32 o __________________________________________________ F

 | Days | Days | Days

 | | |

9 years in 10 | 177 | 154 | 133

 | | |

8 years in 10 | 183 | 161 | 138

 | | |

5 years in 10 | 195 | 175 | 149

 | | |

2 years in 10 | 207 | 189 | 160

 | | |

1 year in 10 | 213 | 196 | 165

 | | | __________________________________________________
142 Soil Survey of

Table 4.--Acreage and Proportionate Extent of the Soils

_______________________________________________________________________________________________________

 | | |

 Map | Soil name | Acres |Percent

symbol | | |

 | | | _______________________________________________________________________________________________________

 | | |

7 |Wiota silty clay loam, 0 to 2 percent slopes-----------------------------| 3,088 | 0.8

41 |Sparta loamy fine sand, 0 to 2 percent slopes----------------------------| 2,609 | 0.7

41B |Sparta loamy fine sand, 2 to 5 percent slopes----------------------------| 8,097 | 2.2

41C |Sparta loamy fine sand, 5 to 9 percent slopes----------------------------| 1,853 | 0.5

41D |Sparta loamy fine sand, 9 to 14 percent slopes---------------------------| 401 | 0.1

63B |Chelsea loamy fine sand, 2 to 5 percent slopes---------------------------| 1,463 | 0.4

63C |Chelsea loamy fine sand, 5 to 9 percent slopes---------------------------| 541 | 0.1

63D |Chelsea loamy fine sand, 9 to 14 percent slopes--------------------------| 212 | *

83B |Kenyon loam, 2 to 5 percent slopes---------------------------------------| 29,389 | 8.0

83C |Kenyon loam, 5 to 9 percent slopes---------------------------------------| 2,859 | 0.8

83C2 |Kenyon loam, 5 to 9 percent slopes, moderately eroded--------------------| 3,804 | 1.0

83D2 |Kenyon loam, 9 to 14 percent slopes, moderately eroded-------------------| 165 | *

84 |Clyde silty clay loam, 0 to 3 percent slopes-----------------------------| 11,639 | 3.2

88 |Nevin silty clay loam, 0 to 2 percent slopes-----------------------------| 3,989 | 1.1

133 |Colo silty clay loam, 0 to 2 percent slopes, occasionally flooded--------| 3,961 | 1.1

135 |Coland clay loam, 0 to 2 percent slopes, occasionally flooded------------| 1,398 | 0.4

159 |Finchford loamy sand, 0 to 2 percent slopes------------------------------| 3,854 | 1.1

159C |Finchford loamy sand, 2 to 9 percent slopes------------------------------| 576 | 0.2

171B |Bassett loam, 2 to 5 percent slopes--------------------------------------| 915 | 0.2

175 |Dickinson fine sandy loam, 0 to 2 percent slopes-------------------------| 1,080 | 0.3

175B |Dickinson fine sandy loam, 2 to 5 percent slopes-------------------------| 2,007 | 0.5

177 |Saude loam, 0 to 2 percent slopes----------------------------------------| 6,580 | 1.8

177B |Saude loam, 2 to 5 percent slopes----------------------------------------| 1,594 | 0.4

178 |Waukee loam, 0 to 2 percent slopes---------------------------------------| 4,712 | 1.3

178B |Waukee loam, 2 to 5 percent slopes---------------------------------------| 1,489 | 0.4

184 |Klinger silty clay loam, 1 to 3 percent slopes---------------------------| 11,109 | 3.0

198B |Floyd loam, 1 to 4 percent slopes----------------------------------------| 3,786 | 1.0

213B |Rockton loam, 30 to 40 inches to limestone, 2 to 5 percent slopes--------| 567 | 0.2

221 |Klossner muck, 1 to 3 percent slopes-------------------------------------| 204 | *

284 |Flagler sandy loam, 0 to 2 percent slopes--------------------------------| 5,103 | 1.4

284B |Flagler sandy loam, 2 to 5 percent slopes--------------------------------| 1,143 | 0.3

290 |Dells silt loam, 0 to 2 percent slopes-----------------------------------| 860 | 0.2

354 |Aquolls, ponded, 0 to 1 percent slopes-----------------------------------| 339 | *

377B |Dinsdale silty clay loam, 2 to 5 percent slopes--------------------------| 17,701 | 4.8

377C |Dinsdale silty clay loam, 5 to 9 percent slopes--------------------------| 1,068 | 0.3

377C2 |Dinsdale silty clay loam, 5 to 9 percent slopes, moderately eroded-------| 585 | 0.2

382 |Maxfield silty clay loam, 0 to 2 percent slopes--------------------------| 8,508 | 2.3

391B |Clyde-Floyd complex, 1 to 4 percent slopes-------------------------------| 32,180 | 8.8

395B |Marquis loam, 2 to 5 percent slopes--------------------------------------| 24,176 | 6.6

398 |Tripoli clay loam, 0 to 2 percent slopes---------------------------------| 8,923 | 2.4

399 |Readlyn loam, 1 to 3 percent slopes--------------------------------------| 18,082 | 4.9

408B |Olin fine sandy loam, 2 to 5 percent slopes------------------------------| 3,263 | 0.9

408C |Olin fine sandy loam, 5 to 9 percent slopes------------------------------| 422 | 0.1

412C |Emeline loam, 2 to 9 percent slopes--------------------------------------| 217 | *

426B |Aredale loam, 2 to 5 percent slopes--------------------------------------| 4,484 | 1.2

426C |Aredale loam, 5 to 9 percent slopes--------------------------------------| 1,802 | 0.5

426C2 |Aredale loam, 5 to 9 percent slopes, moderately eroded-------------------| 1,559 | 0.4

468B |Dunkerton sandy loam, 2 to 5 percent slopes------------------------------| 2,208 | 0.6

468C |Dunkerton sandy loam, 5 to 9 percent slopes------------------------------| 187 | *

471 |Oran loam, 1 to 3 percent slopes-----------------------------------------| 1,212 | 0.3

485 |Spillville loam, 0 to 2 percent slopes, occasionally flooded-------------| 2,113 | 0.6

585 |Spillville-Coland complex, 0 to 2 percent slopes, occasionally flooded---| 4,664 | 1.3

626 |Hayfield loam, 24 to 40 inches to sand and gravel, 0 to 2 percent slopes | 2,668 | 0.7

761 |Franklin silt loam, 1 to 3 percent slopes--------------------------------| 876 | 0.2

771B |Waubeek silt loam, 2 to 5 percent slopes---------------------------------| 498 | 0.1

775B |Billett sandy loam, 2 to 5 percent slopes--------------------------------| 711 | 0.2

776C |Lilah sandy loam, 2 to 9 percent slopes----------------------------------| 414 | 0.1

777 |Wapsie loam, 1 to 3 percent slopes---------------------------------------| 933 | 0.3

781B |Lourdes loam, 2 to 5 percent slopes--------------------------------------| 474 | 0.1

781C2 |Lourdes loam, 5 to 9 percent slopes, moderately eroded-------------------| 212 | *

782B |Donnan loam, 2 to 5 percent slopes---------------------------------------| 1,121 | 0.3

798 |Protivin loam, 1 to 3 percent slopes-------------------------------------| 790 | 0.2

 | | |

 See footnote at end of table.
Black Hawk County, Iowa 143

Table 4.--Acreage and Proportionate Extent of the Soils--Continued

_______________________________________________________________________________________________________

 | | |

 Map | Soil name | Acres |Percent

symbol | | |

 | | | _______________________________________________________________________________________________________

 | | |

809B |Bertram fine sandy loam, 2 to 5 percent slopes---------------------------| 396 | 0.1

877B |Dinsmore silty clay loam, 2 to 5 percent slopes--------------------------| 6,086 | 1.7

884 |Klingmore silty clay loam, 1 to 3 percent slopes-------------------------| 3,295 | 0.9

911B |Colo-Ely complex, 2 to 5 percent slopes----------------------------------| 5,884 | 1.6

933 |Sawmill silty clay loam, 0 to 2 percent slopes, occasionally flooded-----| 8,955 | 2.4

982 |Maxmore silty clay loam, 0 to 2 percent slopes---------------------------| 2,958 | 0.8

1152 |Marshan clay loam, 24 to 40 inches to sand and gravel, 0 to 2 percent | |

 | slopes------------------------------------------------------------------| 9,403 | 2.6

1226 |Lawler loam, 24 to 40 inches to sand and gravel, 0 to 2 percent slopes---| 4,402 | 1.2

1285G |Burkhardt-Bassett-Chelsea complex, 18 to 60 percent slopes---------------| 349 | *

1585 |Spillville-Coland, channeled-Aquolls, ponded, complex, 0 to 2 percent | |

 | slopes, frequently flooded----------------------------------------------| 19,351 | 5.3

1586 |Sigglekov-Fluvaquents, channeled-Aquents, ponded, complex, 0 to 2 percent| |

 | slopes, frequently flooded----------------------------------------------| 2,297 | 0.6

4000 |Urban land---------------------------------------------------------------| 547 | 0.1

4007 |Wiota-Urban land complex, 0 to 2 percent slopes--------------------------| 1,156 | 0.3

4041 |Sparta-Urban land complex, 0 to 2 percent slopes-------------------------| 679 | 0.2

4041B |Sparta-Urban land complex, 2 to 5 percent slopes-------------------------| 1,535 | 0.4

4041C |Sparta-Urban land complex, 5 to 9 percent slopes-------------------------| 886 | 0.2

4041D |Sparta-Urban land complex, 9 to 14 percent slopes------------------------| 27 | *

4063B |Chelsea-Urban land complex, 2 to 5 percent slopes------------------------| 6 | *

4063C |Chelsea-Urban land complex, 5 to 9 percent slopes------------------------| 76 | *

4063D |Chelsea-Urban land complex, 9 to 14 percent slopes-----------------------| 39 | *

4083B |Kenyon-Urban land complex, 2 to 5 percent slopes-------------------------| 4,028 | 1.1

4083C |Kenyon-Urban land complex, 5 to 9 percent slopes-------------------------| 2,624 | 0.7

4083D |Kenyon-Urban land complex, 9 to 14 percent slopes------------------------| 29 | *

4084 |Clyde-Urban land complex, 0 to 3 percent slopes--------------------------| 23 | *

4088 |Nevin-Urban land complex, 0 to 2 percent slopes--------------------------| 307 | *

4133 |Colo, occasionally flooded-Urban land complex, 0 to 2 percent slopes-----| 253 | *

4135 |Coland, occasionally flooded-Urban land complex, 0 to 2 percent slopes---| 22 | *

4152 |Marshan-Urban land complex, 0 to 2 percent slopes------------------------| 552 | 0.2

4159 |Finchford-Urban land complex, 0 to 2 percent slopes----------------------| 6,075 | 1.7

4159C |Finchford-Urban land complex, 2 to 9 percent slopes----------------------| 142 | *

4171B |Bassett-Urban land complex, 2 to 5 percent slopes------------------------| 171 | *

4171D |Bassett-Urban land complex, 5 to 14 percent slopes-----------------------| 418 | 0.1

4175 |Dickinson-Urban land complex, 0 to 2 percent slopes----------------------| 76 | *

4175B |Dickinson-Urban land complex, 2 to 5 percent slopes----------------------| 143 | *

4177 |Saude-Urban land complex, 0 to 2 percent slopes--------------------------| 1,679 | 0.5

4177B |Saude-Urban land complex, 2 to 5 percent slopes--------------------------| 123 | *

4178 |Waukee-Urban land complex, 0 to 2 percent slopes-------------------------| 303 | *

4184 |Klinger-Urban land complex, 1 to 3 percent slopes------------------------| 421 | 0.1

4198B |Floyd-Urban land complex, 1 to 4 percent slopes--------------------------| 41 | *

4226 |Lawler-Urban land complex, 0 to 2 percent slopes-------------------------| 342 | *

4284 |Flagler-Urban land complex, 0 to 2 percent slopes------------------------| 895 | 0.2

4284B |Flagler-Urban land complex, 2 to 5 percent slopes------------------------| 161 | *

4377B |Dinsdale-Urban land complex, 2 to 5 percent slopes-----------------------| 643 | 0.2

4377C |Dinsdale-Urban land complex, 5 to 9 percent slopes-----------------------| 23 | *

4382 |Maxfield-Urban land complex, 0 to 2 percent slopes-----------------------| 333 | *

4391B |Clyde-Floyd-Urban land complex, 1 to 4 percent slopes--------------------| 2,452 | 0.7

4398 |Tripoli-Urban land complex, 0 to 2 percent slopes------------------------| 26 | *

4399 |Readlyn-Urban land complex, 1 to 3 percent slopes------------------------| 77 | *

4408B |Olin-Urban land complex, 2 to 5 percent slopes---------------------------| 211 | *

4408C |Olin-Urban land complex, 5 to 9 percent slopes---------------------------| 111 | *

4426B |Aredale-Urban land complex, 2 to 5 percent slopes------------------------| 77 | *

4426C |Aredale-Urban land complex, 5 to 9 percent slopes------------------------| 402 | 0.1

4585 |Spillville, occasionally flooded-Coland, occasionally flooded-Urban land | |

 | complex, 0 to 2 percent slopes------------------------------------------| 388 | 0.1

4761 |Franklin-Urban land complex, 1 to 3 percent slopes-----------------------| 8 | *

4771B |Waubeek-Urban land complex, 2 to 5 percent slopes------------------------| 152 | *

4771D |Waubeek-Urban land complex, 5 to 14 percent slopes-----------------------| 85 | *

 | | |

 See footnote at end of table.
144 Soil Survey of

Table 4.--Acreage and Proportionate Extent of the Soils--Continued

_______________________________________________________________________________________________________

 | | |

 Map | Soil name | Acres |Percent

symbol | | |

 | | | _______________________________________________________________________________________________________

 | | |

4798 |Protivin-Urban land complex, 1 to 3 percent slopes-----------------------| 6 | *

4911B |Colo-Ely-Urban land complex, 2 to 5 percent slopes-----------------------| 483 | 0.1

4933 |Sawmill, occasionally flooded-Urban land complex, 0 to 2 percent slopes--| 104 | *

4946 |Orthents-Urban land complex----------------------------------------------| 2,800 | 0.8

5010 |Pits, sand and gravel----------------------------------------------------| 852 | 0.2

5030 |Pits, limestone quarries-------------------------------------------------| 305 | *

5040 |Orthents, loamy----------------------------------------------------------| 1,122 | 0.3

5053 |Psammaquents, frequently flooded-----------------------------------------| 342 | *

5080 |Orthents, sanitary landfill----------------------------------------------| 149 | *

AW |Animal waste-------------------------------------------------------------| 5 | *

SL |Sewage lagoon------------------------------------------------------------| 24 | *

W |Water--------------------------------------------------------------------| 4,828 | 1.3

 | |____________|________

 | Total---------------------------------------------------------------| 366,600 | 100.0

 | | | _______________________________________________________________________________________________________

 * Less than 0.1 percent.
Black Hawk County, Iowa 145

Table 5.--Cropland Management Considerations

(See text for a description of the considerations listed in this table)

__________________________________________________________________________

 Map symbol | Cropland management

 and | considerations

 soil name | __________________________________________________________________________

 |

7: |

 Wiota------------------------| Excessive permeability

 | Potential for ground-water contamination

 |

41: |

 Sparta-----------------------| Acid soil

 | Excessive permeability

 | Limited available water capacity

 | Limited content of organic matter

 | Potential for ground-water contamination

 | Wind erosion

 |

41B: |

 Sparta-----------------------| Acid soil

 | Excessive permeability

 | Limited available water capacity

 | Limited content of organic matter

 | Potential for ground-water contamination

 | Wind erosion

 |

41C: |

 Sparta-----------------------| Acid soil

 | Excessive permeability

 | Limited available water capacity

 | Limited content of organic matter

 | Potential for ground-water contamination

 | Potential for surface-water contamination

 | Wind erosion

 |

41D: |

 Sparta-----------------------| Acid soil

 | Excessive permeability

 | Limited available water capacity

 | Limited content of organic matter

 | Potential for ground-water contamination

 | Potential for surface-water contamination

 | Water erosion

 | Wind erosion

 |

63B: |

 Chelsea----------------------| Excessive permeability

 | Limited available water capacity

 | Limited content of organic matter

 | Potential for ground-water contamination

 | Wind erosion

 |

63C: |

 Chelsea----------------------| Excessive permeability

 | Limited available water capacity

 | Limited content of organic matter

 | Potential for ground-water contamination

 | Potential for surface-water contamination

 | Wind erosion

 |

63D: |

 Chelsea----------------------| Excessive permeability

 | Limited available water capacity

 | Limited content of organic matter

 | Potential for ground-water contamination

 | Potential for surface-water contamination

 | Water erosion

 | Wind erosion

 |
146 Soil Survey of

Table 5.--Cropland Management Considerations--Continued

__________________________________________________________________________

 Map symbol | Cropland management

 and | considerations

 soil name | __________________________________________________________________________

 |

83B: |

 Kenyon-----------------------| Potential for ground-water contamination

 | Potential for surface-water contamination

 | Water erosion

 |

83C: |

 Kenyon-----------------------| Potential for ground-water contamination

 | Potential for surface-water contamination

 | Water erosion

 |

83C2: |

 Kenyon, moderately eroded----| Potential for ground-water contamination

 | Potential for surface-water contamination

 | Previously eroded

 | Water erosion

 |

83D2: |

 Kenyon, moderately eroded----| Potential for ground-water contamination

 | Potential for surface-water contamination

 | Previously eroded

 | Water erosion

 |

84: |

 Clyde------------------------| Potential for ground-water contamination

 | Seasonal high water table

 |

88: |

 Nevin------------------------| Acid soil

 | Potential for ground-water contamination

 | Seasonal high water table

 |

133: |

 Colo, occasionally flooded---| Flooding

 | Potential for ground-water contamination

 | Potential for surface-water contamination

 | Seasonal high water table

 |

135: |

 Coland, occasionally flooded | Flooding

 | Potential poor tilth and compaction

 | Potential for ground-water contamination

 | Potential for surface-water contamination

 | Seasonal high water table

 |

159: |

 Finchford--------------------| Acid soil

 | Excessive permeability

 | Limited available water capacity

 | Limited content of organic matter

 | Potential for ground-water contamination

 | Wind erosion

 |

159C: |

 Finchford--------------------| Acid soil

 | Excessive permeability

 | Limited available water capacity

 | Limited content of organic matter

 | Potential for ground-water contamination

 | Potential for surface-water contamination

 | Wind erosion

 |
Black Hawk County, Iowa 147

Table 5.--Cropland Management Considerations--Continued

__________________________________________________________________________

 Map symbol | Cropland management

 and | considerations

 soil name | __________________________________________________________________________

 |

171B: |

 Bassett----------------------| Potential for ground-water contamination

 | Potential for surface-water contamination

 | Water erosion

 | Seasonal high water table

 |

175: |

 Dickinson--------------------| Excessive permeability

 | Limited available water capacity

 | Potential for ground-water contamination

 | Wind erosion

 |

175B: |

 Dickinson--------------------| Excessive permeability

 | Limited available water capacity

 | Potential for ground-water contamination

 | Potential for surface-water contamination

 | Water erosion

 | Wind erosion

 |

177: |

 Saude------------------------| Acid soil

 | Excessive permeability

 | Potential for ground-water contamination

 |

177B: |

 Saude------------------------| Acid soil

 | Excessive permeability

 | Potential for ground-water contamination

 | Potential for surface-water contamination

 | Water erosion

 |

178: |

 Waukee-----------------------| Acid soil

 | Excessive permeability

 | Potential for ground-water contamination

 |

178B: |

 Waukee-----------------------| Acid soil

 | Excessive permeability

 | Potential for ground-water contamination

 | Potential for surface-water contamination

 | Water erosion

 |

184: |

 Klinger----------------------| Potential for ground-water contamination

 | Seasonal high water table

 |

198B: |

 Floyd------------------------| Potential for ground-water contamination

 | Potential for surface-water contamination

 | Water erosion

 | Seasonal high water table

 |

213B: |

 Rockton, 30 to 40 inches to |

 limestone-------------------| Depth to rock

 | Potential for ground-water contamination

 | Potential for surface-water contamination

 | Restricted permeability

 | Water erosion

 |
148 Soil Survey of

Table 5.--Cropland Management Considerations--Continued

__________________________________________________________________________

 Map symbol | Cropland management

 and | considerations

 soil name | __________________________________________________________________________

 |

221: |

 Klossner---------------------| High content of organic matter

 | Potential for ground-water contamination

 | Seasonal high water table

 | Wind erosion

 |

284: |

 Flagler----------------------| Excessive permeability

 | Limited available water capacity

 | Potential for ground-water contamination

 | Wind erosion

 |

284B: |

 Flagler----------------------| Excessive permeability

 | Limited available water capacity

 | Potential for ground-water contamination

 | Potential for surface-water contamination

 | Water erosion

 | Wind erosion

 |

290: |

 Dells------------------------| Excessive permeability

 | Potential for ground-water contamination

 | Seasonal high water table

 |

354: |

 Aquolls, ponded--------------| Ponding

 | Potential for ground-water contamination

 | Potential for surface-water contamination

 | Seasonal high water table

 |

377B: |

 Dinsdale---------------------| Potential for ground-water contamination

 | Potential for surface-water contamination

 | Water erosion

 |

377C: |

 Dinsdale---------------------| Potential for ground-water contamination

 | Potential for surface-water contamination

 | Water erosion

 |

377C2: |

 Dinsdale, moderately eroded--| Potential for ground-water contamination

 | Potential for surface-water contamination

 | Previously eroded

 | Water erosion

 |

382: |

 Maxfield---------------------| Potential poor tilth and compaction

 | Potential for ground-water contamination

 | Seasonal high water table

 |

391B: |

 Clyde------------------------| Potential for ground-water contamination

 | Seasonal high water table

 |

 Floyd------------------------| Potential for ground-water contamination

 | Potential for surface-water contamination

 | Water erosion

 | Seasonal high water table

 |
Black Hawk County, Iowa 149

Table 5.--Cropland Management Considerations--Continued

__________________________________________________________________________

 Map symbol | Cropland management

 and | considerations

 soil name | __________________________________________________________________________

 |

395B: |

 Marquis----------------------| Potential for ground-water contamination

 | Potential for surface-water contamination

 | Water erosion

 | Seasonal high water table

 |

398: |

 Tripoli----------------------| Potential poor tilth and compaction

 | Potential for ground-water contamination

 | Seasonal high water table

 |

399: |

 Readlyn----------------------| Potential for ground-water contamination

 | Seasonal high water table

 |

408B: |

 Olin-------------------------| Acid soil

 | Potential for ground-water contamination

 | Potential for surface-water contamination

 | Water erosion

 | Wind erosion

 |

408C: |

 Olin-------------------------| Acid soil

 | Potential for ground-water contamination

 | Potential for surface-water contamination

 | Water erosion

 | Wind erosion

 |

412C: |

 Emeline----------------------| Depth to rock

 | Limited available water capacity

 | Potential for ground-water contamination

 | Potential for surface-water contamination

 | Restricted permeability

 | Water erosion

 |

426B: |

 Aredale----------------------| Acid soil

 | Potential for ground-water contamination

 | Potential for surface-water contamination

 | Water erosion

 |

426C: |

 Aredale----------------------| Acid soil

 | Potential for ground-water contamination

 | Potential for surface-water contamination

 | Water erosion

 |

426C2: |

 Aredale, moderately eroded---| Acid soil

 | Potential for ground-water contamination

 | Potential for surface-water contamination

 | Previously eroded

 | Water erosion

 |

468B: |

 Dunkerton--------------------| Limited content of organic matter

 | Potential for ground-water contamination

 | Potential for surface-water contamination

 | Water erosion

 | Seasonal high water table

 | Wind erosion

 |
150 Soil Survey of

Table 5.--Cropland Management Considerations--Continued

__________________________________________________________________________

 Map symbol | Cropland management

 and | considerations

 soil name | __________________________________________________________________________

 |

468C: |

 Dunkerton--------------------| Limited content of organic matter

 | Potential for ground-water contamination

 | Potential for surface-water contamination

 | Water erosion

 | Seasonal high water table

 | Wind erosion

 |

471: |

 Oran-------------------------| Potential for ground-water contamination

 | Seasonal high water table

 |

485: |

 Spillville, occasionally |

 flooded---------------------| Flooding

 | Potential for ground-water contamination

 | Potential for surface-water contamination

 | Seasonal high water table

 |

585: |

 Spillville, occasionally |

 flooded---------------------| Flooding

 | Potential for ground-water contamination

 | Potential for surface-water contamination

 | Seasonal high water table

 |

 Coland, occasionally flooded | Flooding

 | Potential poor tilth and compaction

 | Potential for ground-water contamination

 | Potential for surface-water contamination

 | Seasonal high water table

 |

626: |

 Hayfield, 24 to 40 inches to |

 sand and gravel-------------| Acid soil

 | Excessive permeability

 | Potential for ground-water contamination

 | Seasonal high water table

 |

761: |

 Franklin---------------------| Acid soil

 | Potential for ground-water contamination

 | Seasonal high water table

 |

771B: |

 Waubeek----------------------| Acid soil

 | Potential for ground-water contamination

 | Potential for surface-water contamination

 | Water erosion

 |

775B: |

 Billett----------------------| Excessive permeability

 | Limited content of organic matter

 | Potential for ground-water contamination

 | Potential for surface-water contamination

 | Water erosion

 | Wind erosion

 |
Black Hawk County, Iowa 151

Table 5.--Cropland Management Considerations--Continued

__________________________________________________________________________

 Map symbol | Cropland management

 and | considerations

 soil name | __________________________________________________________________________

 |

776C: |

 Lilah------------------------| Acid soil

 | Excessive permeability

 | Limited available water capacity

 | Limited content of organic matter

 | Potential for ground-water contamination

 | Potential for surface-water contamination

 | Water erosion

 | Wind erosion

 |

777: |

 Wapsie-----------------------| Acid soil

 | Excessive permeability

 | Potential for ground-water contamination

 |

781B: |

 Lourdes----------------------| Acid soil

 | Potential for ground-water contamination

 | Potential for surface-water contamination

 | Water erosion

 |

781C2: |

 Lourdes, moderately eroded---| Potential for ground-water contamination

 | Potential for surface-water contamination

 | Previously eroded

 | Water erosion

 |

782B: |

 Donnan-----------------------| Acid soil

 | Potential for ground-water contamination

 | Potential for surface-water contamination

 | Restricted permeability

 | Water erosion

 | Seasonal high water table

 |

798: |

 Protivin---------------------| Acid soil

 | Potential for ground-water contamination

 | Potential for surface-water contamination

 | Seasonal high water table

 |

809B: |

 Bertram----------------------| Acid soil

 | Depth to rock

 | Limited available water capacity

 | Potential for ground-water contamination

 | Potential for surface-water contamination

 | Restricted permeability

 | Water erosion

 | Wind erosion

 |

877B: |

 Dinsmore---------------------| Acid soil

 | Potential for ground-water contamination

 | Potential for surface-water contamination

 | Water erosion

 |

884: |

 Klingmore--------------------| Potential for ground-water contamination

 | Seasonal high water table

 |
152 Soil Survey of

Table 5.--Cropland Management Considerations--Continued

__________________________________________________________________________

 Map symbol | Cropland management

 and | considerations

 soil name | __________________________________________________________________________

 |

911B: |

 Colo-------------------------| Potential for ground-water contamination

 | Seasonal high water table

 |

 Ely--------------------------| Potential for ground-water contamination

 | Potential for surface-water contamination

 | Water erosion

 | Seasonal high water table

 |

933: |

 Sawmill, occasionally flooded| Flooding

 | Potential poor tilth and compaction

 | Potential for ground-water contamination

 | Potential for surface-water contamination

 | Seasonal high water table

 |

982: |

 Maxmore----------------------| Potential for ground-water contamination

 | Seasonal high water table

 |

1152: |

 Marshan, 24 to 40 inches to |

 sand and gravel-------------| Excessive permeability

 | Potential for ground-water contamination

 | Seasonal high water table

 |

1226: |

 Lawler, 24 to 40 inches to |

 sand and gravel-------------| Excessive permeability

 | Potential for ground-water contamination

 | Seasonal high water table

 |

1285G: |

 Burkhardt--------------------| Slope

 | Excessive permeability

 | Limited available water capacity

 | Limited content of organic matter

 | Potential for ground-water contamination

 | Potential for surface-water contamination

 | Water erosion

 | Wind erosion

 |

 Bassett----------------------| Slope

 | Potential for ground-water contamination

 | Water erosion

 | Seasonal high water table

 |

 Chelsea----------------------| Slope

 | Excessive permeability

 | Limited available water capacity

 | Limited content of organic matter

 | Potential for ground-water contamination

 | Water erosion

 | Wind erosion

 |

1585: |

 Spillville, frequently |

 flooded---------------------| Flooding

 | Channeled

 | Potential for ground-water contamination

 | Potential for surface-water contamination

 | Seasonal high water table

 |
Black Hawk County, Iowa 153

Table 5.--Cropland Management Considerations--Continued

__________________________________________________________________________

 Map symbol | Cropland management

 and | considerations

 soil name | __________________________________________________________________________

 |

1585: |

 Coland, frequently flooded---| Flooding

 | Channeled

 | Potential poor tilth and compaction

 | Potential for ground-water contamination

 | Potential for surface-water contamination

 | Seasonal high water table

 |

 Aquolls, ponded--------------| Channeled

 | Ponding

 | Potential for ground-water contamination

 | Potential for surface-water contamination

 | Seasonal high water table

 |

1586: |

 Sigglekov, frequently flooded| Flooding

 | Channeled

 | Excessive permeability

 | Limited available water capacity

 | Limited content of organic matter

 | Potential for ground-water contamination

 | Potential for surface-water contamination

 | Seasonal high water table

 | Wind erosion

 |

 Fluvaquents, frequently |

 flooded---------------------| Flooding

 | Channeled

 | Potential for ground-water contamination

 | Potential for surface-water contamination

 | Seasonal high water table

 |

 Aquents, ponded--------------| Channeled

 | Ponding

 | Potential for ground-water contamination

 | Potential for surface-water contamination

 | Seasonal high water table

 |

4000. |

 Urban land |

 |

4007: |

 Wiota------------------------| Excessive permeability

 | Potential for ground-water contamination

 |

 Urban land. |

 |

4041: |

 Sparta-----------------------| Acid soil

 | Excessive permeability

 | Limited available water capacity

 | Limited content of organic matter

 | Potential for ground-water contamination

 | Wind erosion

 |

 Urban land. |

 |

4041B: |

 Sparta-----------------------| Acid soil

 | Excessive permeability

 | Limited available water capacity

 | Limited content of organic matter

 | Potential for ground-water contamination

 | Wind erosion

 |
154 Soil Survey of

Table 5.--Cropland Management Considerations--Continued

__________________________________________________________________________

 Map symbol | Cropland management

 and | considerations

 soil name | __________________________________________________________________________

 |

4041B: |

 Urban land. |

 |

4041C: |

 Sparta-----------------------| Acid soil

 | Excessive permeability

 | Limited available water capacity

 | Limited content of organic matter

 | Potential for ground-water contamination

 | Potential for surface-water contamination

 | Wind erosion

 |

 Urban land. |

 |

4041D: |

 Sparta-----------------------| Acid soil

 | Excessive permeability

 | Limited available water capacity

 | Limited content of organic matter

 | Potential for ground-water contamination

 | Potential for surface-water contamination

 | Water erosion

 | Wind erosion

 |

 Urban land. |

 |

4063B: |

 Chelsea----------------------| Excessive permeability

 | Limited available water capacity

 | Limited content of organic matter

 | Potential for ground-water contamination

 | Wind erosion

 |

 Urban land. |

 |

4063C: |

 Chelsea----------------------| Excessive permeability

 | Limited available water capacity

 | Limited content of organic matter

 | Potential for ground-water contamination

 | Potential for surface-water contamination

 | Wind erosion

 |

 Urban land. |

 |

4063D: |

 Chelsea----------------------| Excessive permeability

 | Limited available water capacity

 | Limited content of organic matter

 | Potential for ground-water contamination

 | Potential for surface-water contamination

 | Water erosion

 | Wind erosion

 |

 Urban land. |

 |

4083B: |

 Kenyon-----------------------| Potential for ground-water contamination

 | Potential for surface-water contamination

 | Water erosion

 |

 Urban land. |

 |
Black Hawk County, Iowa 155

Table 5.--Cropland Management Considerations--Continued

__________________________________________________________________________

 Map symbol | Cropland management

 and | considerations

 soil name | __________________________________________________________________________

 |

4083C: |

 Kenyon-----------------------| Potential for ground-water contamination

 | Potential for surface-water contamination

 | Water erosion

 |

 Urban land. |

 |

4083D: |

 Kenyon-----------------------| Potential for ground-water contamination

 | Potential for surface-water contamination

 | Water erosion

 |

 Urban land. |

 |

4084: |

 Clyde------------------------| Potential for ground-water contamination

 | Seasonal high water table

 |

 Urban land. |

 |

4088: |

 Nevin------------------------| Acid soil

 | Potential for ground-water contamination

 | Seasonal high water table

 |

 Urban land. |

 |

4133: |

 Colo, occasionally flooded---| Flooding

 | Potential for ground-water contamination

 | Potential for surface-water contamination

 | Seasonal high water table

 |

 Urban land. |

 |

4135: |

 Coland, occasionally flooded | Flooding

 | Potential poor tilth and compaction

 | Potential for ground-water contamination

 | Potential for surface-water contamination

 | Seasonal high water table

 |

 Urban land. |

 |

4152: |

 Marshan, 24 to 40 inches to |

 sand and gravel-------------| Excessive permeability

 | Potential for ground-water contamination

 | Seasonal high water table

 |

 Urban land. |

 |

4159: |

 Finchford--------------------| Acid soil

 | Excessive permeability

 | Limited available water capacity

 | Limited content of organic matter

 | Potential for ground-water contamination

 | Wind erosion

 |

 Urban land. |

 |
156 Soil Survey of

Table 5.--Cropland Management Considerations--Continued

__________________________________________________________________________

 Map symbol | Cropland management

 and | considerations

 soil name | __________________________________________________________________________

 |

4159C: |

 Finchford--------------------| Acid soil

 | Excessive permeability

 | Limited available water capacity

 | Limited content of organic matter

 | Potential for ground-water contamination

 | Potential for surface-water contamination

 | Wind erosion

 |

 Urban land. |

 |

4171B: |

 Bassett----------------------| Potential for ground-water contamination

 | Potential for surface-water contamination

 | Water erosion

 | Seasonal high water table

 |

 Urban land. |

 |

4171D: |

 Bassett----------------------| Potential for ground-water contamination

 | Potential for surface-water contamination

 | Water erosion

 | Seasonal high water table

 |

 Urban land. |

 |

4175: |

 Dickinson--------------------| Excessive permeability

 | Limited available water capacity

 | Potential for ground-water contamination

 | Wind erosion

 |

 Urban land. |

 |

4175B: |

 Dickinson--------------------| Excessive permeability

 | Limited available water capacity

 | Potential for ground-water contamination

 | Potential for surface-water contamination

 | Water erosion

 | Wind erosion

 |

 Urban land. |

 |

4177: |

 Saude------------------------| Acid soil

 | Excessive permeability

 | Potential for ground-water contamination

 |

 Urban land. |

 |

4177B: |

 Saude------------------------| Acid soil

 | Excessive permeability

 | Potential for ground-water contamination

 | Potential for surface-water contamination

 | Water erosion

 |

 Urban land. |

 |
Black Hawk County, Iowa 157

Table 5.--Cropland Management Considerations--Continued

__________________________________________________________________________

 Map symbol | Cropland management

 and | considerations

 soil name | __________________________________________________________________________

 |

4178: |

 Waukee-----------------------| Acid soil

 | Excessive permeability

 | Potential for ground-water contamination

 |

 Urban land. |

 |

4184: |

 Klinger----------------------| Potential for ground-water contamination

 | Seasonal high water table

 |

 Urban land. |

 |

4198B: |

 Floyd------------------------| Potential for ground-water contamination

 | Potential for surface-water contamination

 | Water erosion

 | Seasonal high water table

 |

 Urban land. |

 |

4226: |

 Lawler, 24 to 40 inches to |

 sand and gravel-------------| Excessive permeability

 | Potential for ground-water contamination

 | Seasonal high water table

 |

 Urban land. |

 |

4284: |

 Flagler----------------------| Excessive permeability

 | Limited available water capacity

 | Potential for ground-water contamination

 | Wind erosion

 |

 Urban land. |

 |

4284B: |

 Flagler----------------------| Excessive permeability

 | Limited available water capacity

 | Potential for ground-water contamination

 | Potential for surface-water contamination

 | Water erosion

 | Wind erosion

 |

 Urban land. |

 |

4377B: |

 Dinsdale---------------------| Potential for ground-water contamination

 | Potential for surface-water contamination

 | Water erosion

 |

 Urban land. |

 |

4377C: |

 Dinsdale---------------------| Potential for ground-water contamination

 | Potential for surface-water contamination

 | Water erosion

 |

 Urban land. |

 |
158 Soil Survey of

Table 5.--Cropland Management Considerations--Continued

__________________________________________________________________________

 Map symbol | Cropland management

 and | considerations

 soil name | __________________________________________________________________________

 |

4382: |

 Maxfield---------------------| Potential poor tilth and compaction

 | Potential for ground-water contamination

 | Seasonal high water table

 |

 Urban land. |

 |

4391B: |

 Clyde------------------------| Potential for ground-water contamination

 | Seasonal high water table

 |

 Floyd------------------------| Potential for ground-water contamination

 | Potential for surface-water contamination

 | Water erosion

 | Seasonal high water table

 |

 Urban land. |

 |

4398: |

 Tripoli----------------------| Potential poor tilth and compaction

 | Potential for ground-water contamination

 | Seasonal high water table

 |

 Urban land. |

 |

4399: |

 Readlyn----------------------| Potential for ground-water contamination

 | Seasonal high water table

 |

 Urban land. |

 |

4408B: |

 Olin-------------------------| Acid soil

 | Potential for ground-water contamination

 | Potential for surface-water contamination

 | Water erosion

 | Wind erosion

 |

 Urban land. |

 |

4408C: |

 Olin-------------------------| Acid soil

 | Potential for ground-water contamination

 | Potential for surface-water contamination

 | Water erosion

 | Wind erosion

 |

 Urban land. |

 |

4426B: |

 Aredale----------------------| Acid soil

 | Potential for ground-water contamination

 | Potential for surface-water contamination

 | Water erosion

 |

 Urban land. |

 |

4426C: |

 Aredale----------------------| Acid soil

 | Potential for ground-water contamination

 | Potential for surface-water contamination

 | Water erosion

 |

 Urban land. |

 |
Black Hawk County, Iowa 159

Table 5.--Cropland Management Considerations--Continued

__________________________________________________________________________

 Map symbol | Cropland management

 and | considerations

 soil name | __________________________________________________________________________

 |

4585: |

 Spillville, occasionally |

 flooded---------------------| Flooding

 | Potential for ground-water contamination

 | Potential for surface-water contamination

 | Seasonal high water table

 |

 Coland, occasionally flooded | Flooding

 | Potential poor tilth and compaction

 | Potential for ground-water contamination

 | Potential for surface-water contamination

 | Seasonal high water table

 |

 Urban land. |

 |

4761: |

 Franklin---------------------| Acid soil

 | Potential for ground-water contamination

 | Seasonal high water table

 |

 Urban land. |

 |

4771B: |

 Waubeek----------------------| Acid soil

 | Potential for ground-water contamination

 | Potential for surface-water contamination

 | Water erosion

 |

 Urban land. |

 |

4771D: |

 Waubeek----------------------| Acid soil

 | Potential for ground-water contamination

 | Potential for surface-water contamination

 | Water erosion

 |

 Urban land. |

 |

4798: |

 Protivin---------------------| Acid soil

 | Potential for ground-water contamination

 | Potential for surface-water contamination

 | Seasonal high water table

 |

 Urban land. |

 |

4911B: |

 Colo-------------------------| Flooding

 | Potential for ground-water contamination

 | Potential for surface-water contamination

 | Seasonal high water table

 |

 Ely--------------------------| Potential for ground-water contamination

 | Potential for surface-water contamination

 | Water erosion

 | Seasonal high water table

 |

 Urban land. |

 |
160 Soil Survey of

Table 5.--Cropland Management Considerations--Continued

__________________________________________________________________________

 Map symbol | Cropland management

 and | considerations

 soil name | __________________________________________________________________________

 |

4933: |

 Sawmill, occasionally flooded| Flooding

 | Potential poor tilth and compaction

 | Potential for ground-water contamination

 | Potential for surface-water contamination

 | Seasonal high water table

 |

 Urban land. |

 |

4946: |

 Orthents, loamy--------------| Onsite investigation required

 |

 Urban land. |

 |

5010. |

 Pits, sand and gravel |

 |

5030. |

 Pits, limestone quarries |

 |

5040: |

 Udorthents, loamy------------| Onsite investigation required

 |

5053: |

 Psammaquents, frequently |

 flooded---------------------| Flooding

 | Potential for ground-water contamination

 | Potential for surface-water contamination

 | Seasonal high water table

 |

5080: |

 Orthents, sanitary landfill--| Onsite investigation required

 |

AW. |

 Animal waste |

 |

SL. |

 Sewage lagoon |

 |

W. |

 Water |

 | __________________________________________________________________________
Table 6.--Land Capability, Corn Suitability Rating, Subsoil Phosphorus and Potassium, and Yields per 

(Yields are those that can be expected under a high level of management. They are for nonirrigated areas. Abs indicates that the soil is not suited to the crop or the crop generally is not grown on the soil. See te of ratings in this table) _____________________________________________________________________________________________________________ | | | | | | |  Map symbol | Land | Corn | Subsoil | Subsoil |Bromegrass- | Corn |  and soil name | capability |suitability | phosphorus | potassium |alfalfa hay | |  | | rating | | | | | _____________________________________________________________________________________________________________ | | | | | Tons | Bu |  | | | | | | | 7------------------------| 1 | 95 | L | L | 6.8 | 194 |  Wiota | | | | | | |  | | | | | | | 41-----------------------| 4s | 45 | L | L | 3.4 | 81 |  Sparta | | | | | | |  | | | | | | | 41B----------------------| 4s | 40 | L | L | 3.2 | 77 |  Sparta | | | | | | |  | | | | | | | 41C----------------------| 4s | 25 | L | L | 3.0 | 72 |  Sparta | | | | | | |  | | | | | | | 41D----------------------| 6s | 13 | L | L | 2.6 | --- |  Sparta | | | | | | |  | | | | | | | 63B----------------------| 4s | 36 | L | L | 2.9 | 71 |  Chelsea | | | | | | |  | | | | | | | 63C----------------------| 4s | 21 | L | L | 2.6 | 69 |  Chelsea | | | | | | |  | | | | | | | 63D----------------------| 6s | 11 | L | L | 2.3 | --- |  Chelsea | | | | | | |  | | | | | | | 83B----------------------| 2e | 86 | L | L | 6.6 | 192 |  Kenyon | | | | | | |  | | | | | | | 83C----------------------| 3e | 71 | L | L | 6.3 | 186 |  Kenyon | | | | | | |  | | | | | | | 83C2---------------------| 3e | 69 | L | L | 6.2 | 182 |  Kenyon, moderately | | | | | | |  eroded | | | | | | |  | | | | | | | 83D2---------------------| 3e | 59 | L | L | 5.8 | 172 |  Kenyon, moderately | | | | | | |  eroded | | | | | | |  | | | | | | | 84-----------------------| 2w | 76 | L | L | 4.3 | 179 |  Clyde | | | | | | |  | | | | | | | 
Table 6.--Land Capability, Corn Suitability Rating, Subsoil Phosphorus and Potassium, and Yields per Acre 

_____________________________________________________________________________________________________________

 | | | | | | |  Map symbol | Land | Corn | Subsoil | Subsoil |Bromegrass- | Corn |  and soil name | capability |suitability | phosphorus | potassium |alfalfa hay | |  | | rating | | | | | _____________________________________________________________________________________________________________ | | | | | Tons | Bu |  | | | | | | | 88-----------------------| 1 | 90 | L | L | 6.5 | 198 |  Nevin | | | | | | |  | | | | | | | 133----------------------| 2w | 80 | L | L | 4.1 | 168 |  Colo, occasionally | | | | | | |  flooded | | | | | | |  | | | | | | | 135----------------------| 2w | 80 | L | L | 4.1 | 168 |  Coland, occasionally | | | | | | |  flooded | | | | | | |  | | | | | | | 159----------------------| 4s | 30 | L | L | 2.3 | 58 |  Finchford | | | | | | |  | | | | | | | 159C---------------------| 4s | 5 | L | L | 1.9 | --- |  Finchford | | | | | | |  | | | | | | | 171B---------------------| 2e | 81 | L | L | 6.2 | 167 |  Bassett | | | | | | |  | | | | | | | 175----------------------| 3s | 60 | L | L | 4.7 | 103 |  Dickinson | | | | | | |  | | | | | | | 175B---------------------| 3e | 55 | L | L | 4.6 | 106 |  Dickinson | | | | | | |  | | | | | | | 177----------------------| 2s | 63 | L | L | 4.5 | 109 |  Saude | | | | | | |  | | | | | | | 177B---------------------| 2e | 58 | L | L | 4.4 | 99 |  Saude | | | | | | |  | | | | | | | 178----------------------| 2s | 79 | L | L | 5.5 | 137 |  Waukee | | | | | | |  | | | | | | | 178B---------------------| 2e | 74 | L | L | 5.4 | 133 |  Waukee | | | | | | |  | | | | | | | 184----------------------| 1 | 90 | L | L | 6.4 | 197 |  Klinger | | | | | | |  | | | | | | | 198B---------------------| 2w | 80 | L | L | 6.2 | 189 |  Floyd | | | | | | |  | | | | | | | 
Table 6.--Land Capability, Corn Suitability Rating, Subsoil Phosphorus and Potassium, and Yields per Acre 

_____________________________________________________________________________________________________________

 | | | | | | |  Map symbol | Land | Corn | Subsoil | Subsoil |Bromegrass- | Corn |  and soil name | capability |suitability | phosphorus | potassium |alfalfa hay | |  | | rating | | | | | _____________________________________________________________________________________________________________ | | | | | Tons | Bu |  | | | | | | | 213B---------------------| 2e | 71 | L | L | 5.2 | 117 |  Rockton, 30 to 40 inches| | | | | | |  to limestone | | | | | | |  | | | | | | | 221----------------------| 3w | 50 | L | L | 3.5 | 142 |  Klossner | | | | | | |  | | | | | | | 284----------------------| 3s | 50 | L | L | 3.7 | 86 |  Flagler | | | | | | |  | | | | | | | 284B---------------------| 3e | 45 | L | L | 3.5 | 81 |  Flagler | | | | | | |  | | | | | | | 290----------------------| 2w | 74 | L | L | 5.0 | 133 |  Dells | | | | | | |  | | | | | | | 354----------------------| 7w | 5 | L | L | --- | --- |  Aquolls, ponded | | | | | | |  | | | | | | | 377B---------------------| 2e | 90 | L | L | 6.7 | 198 |  Dinsdale | | | | | | |  | | | | | | | 377C---------------------| 3e | 75 | L | L | 6.5 | 191 |  Dinsdale | | | | | | |  | 3e | | | | | | 377C2--------------------| | 73 | L | L | 6.3 | 188 |  Dinsdale, moderately | | | | | | |  eroded | | | | | | |  | | | | | | | 382----------------------| 2w | 90 | L | L | 4.8 | 198 |  Maxfield | | | | | | |  | | | | | | | 391B---------------------| | 72 | L | L | 4.2 | 181 |  Clyde-------------------| 2w | | | | | |  Floyd-------------------| 2w | | | | | |  | | | | | | | 395B---------------------| 2e | 89 | L | L | 6.6 | 193 |  Marquis | | | | | | |  | | | | | | | 398----------------------| 2w | 81 | L | L | 4.7 | 193 |  Tripoli | | | | | | |  | | | | | | | 399----------------------| 1 | 91 | L | L | 6.4 | 196 |  Readlyn | | | | | | |  | | | | | | | 
Table 6.--Land Capability, Corn Suitability Rating, Subsoil Phosphorus and Potassium, and Yields per Acre 

_____________________________________________________________________________________________________________

 | | | | | | |  Map symbol | Land | Corn | Subsoil | Subsoil |Bromegrass- | Corn |  and soil name | capability |suitability | phosphorus | potassium |alfalfa hay | |  | | rating | | | | | _____________________________________________________________________________________________________________ | | | | | Tons | Bu |  | | | | | | | 408B---------------------| 2e | 66 | L | L | 5.5 | 132 |  Olin | | | | | | |  | | | | | | | 408C---------------------| 3e | 51 | L | L | 5.3 | 125 |  Olin | | | | | | |  | | | | | | | 412C---------------------| 4s | 13 | L | L | 2.6 | 65 |  Emeline | | | | | | |  | | | | | | | 426B---------------------| 2e | 85 | L | L | 6.3 | 189 |  Aredale | | | | | | |  | | | | | | | 426C---------------------| 3e | 70 | L | L | 6.0 | 179 |  Aredale | | | | | | |  | | | | | | | 426C2--------------------| 3e | 68 | L | L | 5.9 | 176 |  Aredale, moderately | | | | | | |  eroded | | | | | | |  | | | | | | | 468B---------------------| 2e | 62 | L | L | 5.2 | 133 |  Dunkerton | | | | | | |  | | | | | | | 468C---------------------| 3e | 47 | L | L | 5.0 | 123 |  Dunkerton | | | | | | |  | | | | | | | 471----------------------| 1 | 86 | L | L | 6.0 | 189 |  Oran | | | | | | |  | | | | | | | 485----------------------| 2w | 92 | L | L | 6.2 | 183 |  Spillville, occasionally| | | | | | |  flooded | | | | | | |  | | | | | | | 585----------------------| | 60 | L | L | 4.4 | 171 |  Spillville, occasionally| | | | | | |  flooded----------------| 2w | | | | | |  Coland, occasionally | | | | | | |  flooded----------------| 2w | | | | | |  | | | | | | | 626----------------------| 2s | 67 | L | L | 4.8 | 126 |  Hayfield, 24 to 40 | | | | | | |  inches to sand and | | | | | | |  gravel | | | | | | |  | | | | | | | 761----------------------| 1 | 90 | L | L | 6.2 | 190 |  Franklin | | | | | | |  | | | | | | | 
Table 6.--Land Capability, Corn Suitability Rating, Subsoil Phosphorus and Potassium, and Yields per Acre 

_____________________________________________________________________________________________________________

 | | | | | | |  Map symbol | Land | Corn | Subsoil | Subsoil |Bromegrass- | Corn |  and soil name | capability |suitability | phosphorus | potassium |alfalfa hay | |  | | rating | | | | | _____________________________________________________________________________________________________________ | | | | | Tons | Bu |  | | | | | | | 771B---------------------| 2e | 87 | L | L | 6.5 | 183 |  Waubeek | | | | | | |  | | | | | | | 775B---------------------| 2e | 52 | L | L | 4.2 | 101 |  Billett | | | | | | |  | | | | | | | 776C---------------------| 4s | 7 | L | L | 1.6 | --- |  Lilah | | | | | | |  | | | | | | | 777----------------------| 2s | 58 | L | L | 4.0 | 100 |  Wapsie | | | | | | |  | | | | | | | 781B---------------------| 2e | 62 | L | L | 5.0 | 123 |  Lourdes | | | | | | |  | | | | | | | 781C2--------------------| 3e | 47 | L | L | 4.6 | 115 |  Lourdes, moderately | | | | | | |  eroded | | | | | | |  | | | | | | | 782B---------------------| 2e | 50 | L | L | 3.7 | 126 |  Donnan | | | | | | |  | | | | | | | 798----------------------| 2w | 60 | L | L | 3.8 | 159 |  Protivin | | | | | | |  | | | | | | | 809B---------------------| 4s | 25 | L | L | 2.1 | 62 |  Bertram | | | | | | |  | | | | | | | 877B---------------------| 2e | 93 | L | L | 6.8 | 201 |  Dinsmore | | | | | | |  | | | | | | | 884----------------------| 1 | 95 | L | L | 6.6 | 204 |  Klingmore | | | | | | |  | | | | | | | 911B---------------------| | 75 | L | L | 4.3 | 180 |  Colo--------------------| 2w | | | | | |  Ely---------------------| 2e | | | | | |  | | | | | | | 933----------------------| 2w | 80 | L | L | 4.1 | 171 |  Sawmill, occasionally | | | | | | |  flooded | | | | | | |  | | | | | | | 982----------------------| 2w | 93 | L | L | 4.9 | 201 |  Maxmore | | | | | | |  | | | | | | | 
Table 6.--Land Capability, Corn Suitability Rating, Subsoil Phosphorus and Potassium, and Yields per Acre 

_____________________________________________________________________________________________________________

 | | | | | | |  Map symbol | Land | Corn | Subsoil | Subsoil |Bromegrass- | Corn |  and soil name | capability |suitability | phosphorus | potassium |alfalfa hay | |  | | rating | | | | | _____________________________________________________________________________________________________________ | | | | | Tons | Bu |  | | | | | | | 1152---------------------| 2w | 68 | L | L | 3.6 | 126 |  Marshan, 24 to 40 inches| | | | | | |  to sand and gravel | | | | | | |  | | | | | | | 1226---------------------| 2s | 72 | L | L | 5.2 | 135 |  Lawler, 24 to 40 inches | | | | | | |  to sand and gravel | | | | | | |  | | | | | | | 1285G--------------------| | 5 | L | L | --- | --- |  Burkhardt---------------| 7e | | | | | |  Bassett-----------------| --- | | | | | |  Chelsea-----------------| --- | | | | | |  | | | | | | | 1585---------------------| | 5 | L | L | --- | --- |  Spillville, frequently | | | | | | |  flooded----------------| 5w | | | | | |  Coland, frequently | | | | | | |  flooded----------------| 5w | | | | | |  Aquolls, ponded---------| --- | | | | | |  | | | | | | | 1586---------------------| | 5 | L | L | --- | --- |  Sigglekov, frequently | | | | | | |  flooded----------------| 5w | | | | | |  Fluvaquents, frequently | | | | | | |  flooded----------------| 7w | | | | | |  Aquents, ponded---------| --- | | | | | |  | | | | | | | 4000. | | | | | | |  Urban land | | | | | | |  | | | | | | | 4007: | | | | | | |  Wiota-------------------| 1 | --- | --- | --- | --- | --- |  Urban land. | | | | | | |  | | | | | | | 4041: | | | | | | |  Sparta------------------| 4s | --- | --- | --- | --- | --- |  Urban land. | | | | | | |  | | | | | | | 4041B: | | | | | | |  Sparta------------------| 4s | --- | --- | --- | --- | --- |  Urban land. | | | | | | |  | | | | | | | 4041C: | | | | | | |  Sparta------------------| 4s | --- | --- | --- | --- | --- |  Urban land. | | | | | | |  | | | | | | | 
Table 6.--Land Capability, Corn Suitability Rating, Subsoil Phosphorus and Potassium, and Yields per Acre 

_____________________________________________________________________________________________________________

 | | | | | | |  Map symbol | Land | Corn | Subsoil | Subsoil |Bromegrass- | Corn |  and soil name | capability |suitability | phosphorus | potassium |alfalfa hay | |  | | rating | | | | | _____________________________________________________________________________________________________________ | | | | | Tons | Bu |  | | | | | | | 4041D: | | | | | | |  Sparta------------------| 6s | --- | --- | --- | --- | --- |  Urban land. | | | | | | |  | | | | | | | 4063B: | | | | | | |  Chelsea-----------------| 4s | --- | --- | --- | --- | --- |  Urban land. | | | | | | |  | | | | | | | 4063C: | | | | | | |  Chelsea-----------------| 4s | --- | --- | --- | --- | --- |  Urban land. | | | | | | |  | | | | | | | 4063D: | | | | | | |  Chelsea-----------------| 6s | --- | --- | --- | --- | --- |  Urban land. | | | | | | |  | | | | | | | 4083B: | | | | | | |  Kenyon------------------| 2e | --- | --- | --- | --- | --- |  Urban land. | | | | | | |  | | | | | | | 4083C: | | | | | | |  Kenyon------------------| 3e | --- | --- | --- | --- | --- |  Urban land. | | | | | | |  | | | | | | | 4083D: | | | | | | |  Kenyon------------------| 3e | --- | --- | --- | --- | --- |  Urban land. | | | | | | |  | | | | | | | 4084: | | | | | | |  Clyde-------------------| 2w | --- | --- | --- | --- | --- |  Urban land. | | | | | | |  | | | | | | | 4088: | | | | | | |  Nevin-------------------| 1 | --- | --- | --- | --- | --- |  Urban land. | | | | | | |  | | | | | | | 4133: | | | | | | |  Colo, occasionally | | | | | | |  flooded----------------| 2w | --- | --- | --- | --- | --- |  Urban land. | | | | | | |  | | | | | | | 4135: | | | | | | |  Coland, occasionally | | | | | | |  flooded----------------| 2w | --- | --- | --- | --- | --- |  Urban land. | | | | | | |  | | | | | | | 
Table 6.--Land Capability, Corn Suitability Rating, Subsoil Phosphorus and Potassium, and Yields per Acre 

_____________________________________________________________________________________________________________

 | | | | | | |  Map symbol | Land | Corn | Subsoil | Subsoil |Bromegrass- | Corn |  and soil name | capability |suitability | phosphorus | potassium |alfalfa hay | |  | | rating | | | | | _____________________________________________________________________________________________________________ | | | | | Tons | Bu |  | | | | | | | 4152: | | | | | | |  Marshan, 24 to 40 inches| | | | | | |  to sand and gravel-----| 2w | --- | --- | --- | --- | --- |  Urban land. | | | | | | |  | | | | | | | 4159: | | | | | | |  Finchford---------------| 4s | --- | --- | --- | --- | --- |  Urban land. | | | | | | |  | | | | | | | 4159C: | | | | | | |  Finchford---------------| 4s | --- | --- | --- | --- | --- |  Urban land. | | | | | | |  | | | | | | | 4171B: | | | | | | |  Bassett-----------------| 2e | --- | --- | --- | --- | --- |  Urban land. | | | | | | |  | | | | | | | 4171D: | | | | | | |  Bassett-----------------| 3e | --- | --- | --- | --- | --- |  Urban land. | | | | | | |  | | | | | | | 4175: | | | | | | |  Dickinson---------------| 3s | --- | --- | --- | --- | --- |  Urban land. | | | | | | |  | | | | | | | 4175B: | | | | | | |  Dickinson---------------| 3e | --- | --- | --- | --- | --- |  Urban land. | | | | | | |  | | | | | | | 4177: | | | | | | |  Saude-------------------| 2s | --- | --- | --- | --- | --- |  Urban land. | | | | | | |  | | | | | | | 4177B: | | | | | | |  Saude-------------------| 2e | --- | --- | --- | --- | --- |  Urban land. | | | | | | |  | | | | | | | 4178: | | | | | | |  Waukee------------------| 2s | --- | --- | --- | --- | --- |  Urban land. | | | | | | |  | | | | | | | 4184: | | | | | | |  Klinger-----------------| 1 | --- | --- | --- | --- | --- |  Urban land. | | | | | | |  | | | | | | | 
Table 6.--Land Capability, Corn Suitability Rating, Subsoil Phosphorus and Potassium, and Yields per Acre 

_____________________________________________________________________________________________________________

 | | | | | | |  Map symbol | Land | Corn | Subsoil | Subsoil |Bromegrass- | Corn |  and soil name | capability |suitability | phosphorus | potassium |alfalfa hay | |  | | rating | | | | | _____________________________________________________________________________________________________________ | | | | | Tons | Bu |  | | | | | | | 4198B: | | | | | | |  Floyd-------------------| 2w | --- | --- | --- | --- | --- |  Urban land. | | | | | | |  | | | | | | | 4226: | | | | | | |  Lawler, 24 to 40 inches | | | | | | |  to sand and gravel-----| 2s | --- | --- | --- | --- | --- |  Urban land. | | | | | | |  | | | | | | | 4284: | | | | | | |  Flagler-----------------| 3s | --- | --- | --- | --- | --- |  Urban land. | | | | | | |  | | | | | | | 4284B: | | | | | | |  Flagler-----------------| 3e | --- | --- | --- | --- | --- |  Urban land. | | | | | | |  | | | | | | | 4377B: | | | | | | |  Dinsdale----------------| 2e | --- | --- | --- | --- | --- |  Urban land. | | | | | | |  | | | | | | | 4377C: | | | | | | |  Dinsdale----------------| 3e | --- | --- | --- | --- | --- |  Urban land. | | | | | | |  | | | | | | | 4382: | | | | | | |  Maxfield----------------| 2w | --- | --- | --- | --- | --- |  Urban land. | | | | | | |  | | | | | | | 4391B--------------------| | --- | --- | --- | --- | --- |  Clyde-------------------| 2w | | | | | |  Floyd-------------------| 2w | | | | | |  Urban land. | | | | | | |  | | | | | | | 4398: | | | | | | |  Tripoli-----------------| 2w | --- | --- | --- | --- | --- |  Urban land. | | | | | | |  | | | | | | | 4399: | | | | | | |  Readlyn-----------------| 1 | --- | --- | --- | --- | --- |  Urban land. | | | | | | |  | | | | | | | 4408B: | | | | | | |  Olin--------------------| 2e | --- | --- | --- | --- | --- |  Urban land. | | | | | | |  | | | | | | | 
Table 6.--Land Capability, Corn Suitability Rating, Subsoil Phosphorus and Potassium, and Yields per Acre 

_____________________________________________________________________________________________________________

 | | | | | | |  Map symbol | Land | Corn | Subsoil | Subsoil |Bromegrass- | Corn |  and soil name | capability |suitability | phosphorus | potassium |alfalfa hay | |  | | rating | | | | | _____________________________________________________________________________________________________________ | | | | | Tons | Bu |  | | | | | | | 4408C: | | | | | | |  Olin--------------------| 3e | --- | --- | --- | --- | --- |  Urban land. | | | | | | |  | | | | | | | 4426B: | | | | | | |  Aredale-----------------| 2e | --- | --- | --- | --- | --- |  Urban land. | | | | | | |  | | | | | | | 4426C: | | | | | | |  Aredale-----------------| 3e | | | | | |  Urban land. | | | | | | |  | | | | | | | 4585---------------------| | --- | --- | --- | --- | --- |  Spillville, occasionally| | | | | | |  flooded----------------| 2w | | | | | |  Coland, occasionally | | | | | | |  flooded----------------| 2w | | | | | |  Urban land. | | | | | | |  | | | | | | | 4761: | | | | | | |  Franklin----------------| 1 | --- | --- | --- | --- | --- |  Urban land. | | | | | | |  | | | | | | | 4771B: | | | | | | |  Waubeek-----------------| 2e | --- | L | L | --- | --- |  Urban land. | | | | | | |  | | | | | | | 4771D: | | | | | | |  Waubeek-----------------| 2e | --- | --- | --- | --- | --- |  Urban land. | | | | | | |  | | | | | | | 4798: | | | | | | |  Protivin----------------| 2w | --- | --- | --- | --- | --- |  Urban land. | | | | | | |  | | | | | | | 4911B--------------------| | --- | --- | --- | --- | --- |  Colo--------------------| 2w | | | | | |  Ely---------------------| 2e | | | | | |  Urban land. | | | | | | |  | | | | | | | 4933: | | | | | | |  Sawmill, occasionally | | | | | | |  flooded----------------| 2w | --- | --- | --- | --- | --- |  Urban land. | | | | | | |  | | | | | | | 
Table 6.--Land Capability, Corn Suitability Rating, Subsoil Phosphorus and Potassium, and Yields per Acre 

_____________________________________________________________________________________________________________

 | | | | | | |  Map symbol | Land | Corn | Subsoil | Subsoil |Bromegrass- | Corn |  and soil name | capability |suitability | phosphorus | potassium |alfalfa hay | |  | | rating | | | | | _____________________________________________________________________________________________________________ | | | | | Tons | Bu |  | | | | | | | 4946: | | | | | | |  Orthents, loamy. | | | | | | |  Urban land. | | | | | | |  | | | | | | | 5010. | | | | | | |  Pits, sand and gravel | | | | | | |  | | | | | | | 5030. | | | | | | |  Pits, limestone quarries| | | | | | |  | | | | | | | 5040. | | | | | | |  Orthents, loamy | | | | | | |  | | | | | | | 5053. | | | | | | |  Psammaquents, frequently| | | | | | |  flooded | | | | | | |  | | | | | | | 5080. | | | | | | |  Orthents, sanitary | | | | | | |  landfill | | | | | | |  | | | | | | | AW. | | | | | | |  Animal waste | | | | | | |  | | | | | | | SL. | | | | | | |  Sewage lagoon | | | | | | |  | | | | | | | W. | | | | | | |  Water | | | | | | |  | | | | | | | _____________________________________________________________________________________________________________
172 Soil Survey of

Table 7.--Land Capability and Yields per Acre of 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 |Bromegrass- | Kentucky | Smooth

 and soil name | capability | alfalfa | bluegrass | bromegrass _____________________________________________________________________________

 | | AUM* | AUM* | AUM*

 | | | |

7------------------------| 1 | 11.4 | 4.0 | 6.7

 Wiota | | | |

 | | | |

41-----------------------| 4s | 5.6 | 2.0 | 3.3

 Sparta | | | |

 | | | |

41B----------------------| 4s | 5.4 | 1.9 | 3.2

 Sparta | | | |

 | | | |

41C----------------------| 4s | 5.1 | 1.8 | 3.0

 Sparta | | | |

 | | | |

41D----------------------| 6s | 4.3 | 1.5 | 2.6

 Sparta | | | |

 | | | |

63B----------------------| 4s | 4.8 | 1.7 | 2.8

 Chelsea | | | |

 | | | |

63C----------------------| 4s | 4.4 | 1.5 | 2.6

 Chelsea | | | |

 | | | |

63D----------------------| 6s | 3.8 | 1.3 | 2.2

 Chelsea | | | |

 | | | |

83B----------------------| 2e | 10.9 | 3.8 | 6.4

 Kenyon | | | |

 | | | |

83C----------------------| 3e | 10.6 | 3.7 | 6.2

 Kenyon | | | |

 | | | |

83C2---------------------| 3e | 10.3 | 3.6 | 6.0

 Kenyon, moderately | | | |

 eroded | | | |

 | | | |

83D2---------------------| 3e | 9.7 | 3.4 | 5.7

 Kenyon, moderately | | | |

 eroded | | | |

 | | | |

84-----------------------| 2w | 7.1 | 3.5 | 5.8

 Clyde | | | |

 | | | |

88-----------------------| 1 | 10.9 | 4.0 | 6.7

 Nevin | | | |

 | | | |

133----------------------| 2w | 6.8 | 3.3 | 5.6

 Colo, occasionally | | | |

 flooded | | | |

 | | | |

135----------------------| 2w | 6.8 | 3.3 | 5.6

 Coland, occasionally | | | |

 flooded | | | |

 | | | |

 See footnote at end of table.
Black Hawk County, Iowa 173

Table 7.--Land Capability and Yields per Acre of Pasture--Continued

_____________________________________________________________________________

 | | | |

 Map symbol | Land |Bromegrass- | Kentucky | Smooth

 and soil name | capability | alfalfa | bluegrass | bromegrass _____________________________________________________________________________

 | | AUM* | AUM* | AUM*

 | | | |

159----------------------| 4s | 3.8 | 1.3 | 2.2

 Finchford | | | |

 | | | |

159C---------------------| 4s | 3.2 | 1.1 | 1.9

 Finchford | | | |

 | | | |

171B---------------------| 2e | 10.3 | 3.6 | 6.0

 Bassett | | | |

 | | | |

175----------------------| 3s | 7.9 | 2.7 | 4.6

 Dickinson | | | |

 | | | |

175B---------------------| 3e | 7.6 | 2.7 | 4.5

 Dickinson | | | |

 | | | |

177----------------------| 2s | 7.5 | 2.6 | 4.4

 Saude | | | |

 | | | |

177B---------------------| 2e | 7.3 | 2.5 | 4.3

 Saude | | | |

 | | | |

178----------------------| 2s | 9.3 | 3.2 | 5.4

 Waukee | | | |

 | | | |

178B---------------------| 2e | 9.0 | 3.2 | 5.3

 Waukee | | | |

 | | | |

184----------------------| 1 | 10.6 | 3.9 | 6.5

 Klinger | | | |

 | | | |

198B---------------------| 2w | 10.3 | 3.8 | 6.3

 Floyd | | | |

 | | | |

213B---------------------| 2e | 8.7 | 3.0 | 5.1

 Rockton, 30 to 40 inches| | | |

 to limestone | | | |

 | | | |

221----------------------| 3w | 5.8 | 2.8 | 4.7

 Klossner | | | |

 | | | |

284----------------------| 3s | 6.1 | 2.1 | 3.6

 Flagler | | | |

 | | | |

284B---------------------| 3e | 5.9 | 2.1 | 3.4

 Flagler | | | |

 | | | |

290----------------------| 2w | 8.4 | 3.1 | 5.2

 Dells | | | |

 | | | |

354----------------------| 7w | --- | --- | ---

 Aquolls, ponded | | | |

 | | | |

377B---------------------| 2e | 11.2 | 3.9 | 6.6

 Dinsdale | | | |

 | | | |

377C---------------------| 3e | 10.9 | 3.8 | 6.4

 Dinsdale | | | |

 | | | |

 See footnote at end of table.
174 Soil Survey of

Table 7.--Land Capability and Yields per Acre of Pasture--Continued

_____________________________________________________________________________

 | | | |

 Map symbol | Land |Bromegrass- | Kentucky | Smooth

 and soil name | capability | alfalfa | bluegrass | bromegrass _____________________________________________________________________________

 | | AUM* | AUM* | AUM*

 | | | |

377C2--------------------| 3e | 10.6 | 3.7 | 6.2

 Dinsdale, moderately | | | |

 eroded | | | |

 | | | |

382----------------------| 2w | 8.0 | 3.9 | 6.6

 Maxfield | | | |

 | | | |

391B---------------------| | 7.0 | 3.4 | 5.7

 Clyde-------------------| 2w | | |

 Floyd-------------------| 2w | | |

 | | | |

395B---------------------| 2e | 11.0 | 3.8 | 6.4

 Marquis | | | |

 | | | |

398----------------------| 2w | 7.8 | 3.8 | 6.4

 Tripoli | | | |

 | | | |

399----------------------| 1 | 10.6 | 3.9 | 6.5

 Readlyn | | | |

 | | | |

408B---------------------| 2e | 9.2 | 3.2 | 5.4

 Olin | | | |

 | | | |

408C---------------------| 3e | 8.8 | 3.1 | 5.2

 Olin | | | |

 | | | |

412C---------------------| 4s | 4.3 | 1.5 | 2.5

 Emeline | | | |

 | | | |

426B---------------------| 2e | 10.5 | 3.7 | 6.1

 Aredale | | | |

 | | | |

426C---------------------| 3e | 10.1 | 3.5 | 5.9

 Aredale | | | |

 | | | |

426C2--------------------| 3e | 9.8 | 3.4 | 5.7

 Aredale, moderately | | | |

 eroded | | | |

 | | | |

468B---------------------| 2e | 8.7 | 3.0 | 5.1

 Dunkerton | | | |

 | | | |

468C---------------------| 3e | 8.3 | 2.9 | 4.9

 Dunkerton | | | |

 | | | |

471----------------------| 1 | 10.0 | 3.7 | 6.2

 Oran | | | |

 | | | |

485----------------------| 2w | 10.4 | 3.8 | 6.4

 Spillville, occasionally| | | |

 flooded | | | |

 | | | |

585----------------------| | 7.3 | 3.6 | 6.0

 Spillville, occasionally| | | |

 flooded----------------| 2w | | |

 Coland, occasionally | | | |

 flooded----------------| 2w | | |

 | | | |

 See footnote at end of table.
Black Hawk County, Iowa 175

Table 7.--Land Capability and Yields per Acre of Pasture--Continued

_____________________________________________________________________________

 | | | |

 Map symbol | Land |Bromegrass- | Kentucky | Smooth

 and soil name | capability | alfalfa | bluegrass | bromegrass _____________________________________________________________________________

 | | AUM* | AUM* | AUM*

 | | | |

626----------------------| 2s | 8.0 | 2.9 | 4.9

 Hayfield, 24 to 40 | | | |

 inches to sand and | | | |

 gravel | | | |

 | | | |

761----------------------| 1 | 10.3 | 3.8 | 6.3

 Franklin | | | |

 | | | |

771B---------------------| 2e | 10.9 | 3.8 | 6.4

 Waubeek | | | |

 | | | |

775B---------------------| 2e | 7.1 | 2.5 | 4.1

 Billett | | | |

 | | | |

776C---------------------| 4s | 2.7 | 0.9 | 1.6

 Lilah | | | |

 | | | |

777----------------------| 2s | 6.7 | 2.3 | 3.9

 Wapsie | | | |

 | | | |

781B---------------------| 2e | 8.3 | 3.0 | 5.1

 Lourdes | | | |

 | | | |

781C2--------------------| 3e | 7.7 | 2.8 | 4.7

 Lourdes, moderately | | | |

 eroded | | | |

 | | | |

782B---------------------| 2e | 6.1 | 2.3 | 3.8

 Donnan | | | |

 | | | |

798----------------------| 2w | 6.3 | 3.1 | 5.2

 Protivin | | | |

 | | | |

809B---------------------| 4s | 3.4 | 1.2 | 2.0

 Bertram | | | |

 | | | |

877B---------------------| 2e | 11.4 | 4.0 | 6.7

 Dinsmore | | | |

 | | | |

884----------------------| 1 | 11.0 | 4.0 | 6.8

 Klingmore | | | |

 | | | |

911B---------------------| | 7.2 | 3.5 | 5.9

 Colo--------------------| 2w | | |

 Ely---------------------| 2e | | |

 | | | |

933----------------------| 2w | 6.8 | 3.3 | 5.6

 Sawmill, occasionally | | | |

 flooded | | | |

 | | | |

982----------------------| 2w | 8.2 | 4.0 | 6.7

 Maxmore | | | |

 | | | |

1152---------------------| 2w | 6.0 | 3.0 | 4.8

 Marshan, 24 to 40 inches| | | |

 to sand and gravel | | | |

 | | | |

1226---------------------| 2s | 8.7 | 3.2 | 5.3

 Lawler, 24 to 40 inches | | | |

 to sand and gravel | | | |

 | | | |

 See footnote at end of table.
176 Soil Survey of

Table 7.--Land Capability and Yields per Acre of Pasture--Continued

_____________________________________________________________________________

 | | | |

 Map symbol | Land |Bromegrass- | Kentucky | Smooth

 and soil name | capability | alfalfa | bluegrass | bromegrass _____________________________________________________________________________

 | | AUM* | AUM* | AUM*

 | | | |

1285G--------------------| | --- | 0.4 | ---

 Burkhardt---------------| 7e | | |

 Bassett-----------------| --- | | |

 Chelsea-----------------| --- | | |

 | | | |

1585---------------------| | --- | 3.6 | ---

 Spillville, frequently | | | |

 flooded----------------| 5w | | |

 Coland, frequently | | | |

 flooded----------------| 5w | | |

 Aquolls, ponded---------| --- | | |

 | | | |

1586---------------------| | --- | 1.5 | ---

 Sigglekov, frequently | | | |

 flooded----------------| 5w | | |

 Fluvaquents, frequently | | | |

 flooded----------------| 7w | | |

 Aquents, ponded---------| --- | | |

 | | | |

4000. | | | |

 Urban land | | | |

 | | | |

4007: | | | |

 Wiota-------------------| 1 | --- | --- | ---

 Urban land. | | | |

 | | | |

4041: | | | |

 Sparta------------------| 4s | --- | --- | ---

 Urban land. | | | |

 | | | |

4041B: | | | |

 Sparta------------------| 4s | --- | --- | ---

 Urban land. | | | |

 | | | |

4041C: | | | |

 Sparta------------------| 4s | --- | --- | ---

 Urban land. | | | |

 | | | |

4041D: | | | |

 Sparta------------------| 6s | --- | --- | ---

 Urban land. | | | |

 | | | |

4063B: | | | |

 Chelsea-----------------| 4s | --- | --- | ---

 Urban land. | | | |

 | | | |

4063C: | | | |

 Chelsea-----------------| 4s | --- | --- | ---

 Urban land. | | | |

 | | | |

4063D: | | | |

 Chelsea-----------------| 6s | --- | --- | ---

 Urban land. | | | |

 | | | |

4083B: | | | |

 Kenyon------------------| 2e | --- | --- | ---

 Urban land. | | | |

 | | | |

 See footnote at end of table.
Black Hawk County, Iowa 177

Table 7.--Land Capability and Yields per Acre of Pasture--Continued

_____________________________________________________________________________

 | | | |

 Map symbol | Land |Bromegrass- | Kentucky | Smooth

 and soil name | capability | alfalfa | bluegrass | bromegrass _____________________________________________________________________________

 | | AUM* | AUM* | AUM*

 | | | |

4083C: | | | |

 Kenyon------------------| 3e | --- | --- | ---

 Urban land. | | | |

 | | | |

4083D: | | | |

 Kenyon------------------| 3e | --- | --- | ---

 Urban land. | | | |

 | | | |

4084: | | | |

 Clyde-------------------| 2w | --- | --- | ---

 Urban land. | | | |

 | | | |

4088: | | | |

 Nevin-------------------| 1 | --- | --- | ---

 Urban land. | | | |

 | | | |

4133: | | | |

 Colo, occasionally | | | |

 flooded----------------| 2w | --- | --- | ---

 Urban land. | | | |

 | | | |

4135: | | | |

 Coland, occasionally | | | |

 flooded----------------| 2w | --- | --- | ---

 Urban land. | | | |

 | | | |

4152: | | | |

 Marshan, 24 to 40 inches| | | |

 to sand and gravel-----| 2w | --- | --- | ---

 Urban land. | | | |

 | | | |

4159: | | | |

 Finchford---------------| 4s | --- | --- | ---

 Urban land. | | | |

 | | | |

4159C: | | | |

 Finchford---------------| 4s | --- | --- | ---

 Urban land. | | | |

 | | | |

4171B: | | | |

 Bassett-----------------| 2e | --- | --- | ---

 Urban land. | | | |

 | | | |

4171D: | | | |

 Bassett-----------------| 3e | --- | --- | ---

 Urban land. | | | |

 | | | |

4175: | | | |

 Dickinson---------------| 3s | --- | --- | ---

 Urban land. | | | |

 | | | |

4175B: | | | |

 Dickinson---------------| 3e | --- | --- | ---

 Urban land. | | | |

 | | | |

4177: | | | |

 Saude-------------------| 2s | --- | --- | ---

 Urban land. | | | |

 | | | |

 See footnote at end of table.
178 Soil Survey of

Table 7.--Land Capability and Yields per Acre of Pasture--Continued

_____________________________________________________________________________

 | | | |

 Map symbol | Land |Bromegrass- | Kentucky | Smooth

 and soil name | capability | alfalfa | bluegrass | bromegrass _____________________________________________________________________________

 | | AUM* | AUM* | AUM*

 | | | |

4177B: | | | |

 Saude-------------------| 2e | --- | --- | ---

 Urban land. | | | |

 | | | |

4178: | | | |

 Waukee------------------| 2s | --- | --- | ---

 Urban land. | | | |

 | | | |

4184: | | | |

 Klinger-----------------| 1 | --- | --- | ---

 Urban land. | | | |

 | | | |

4198B: | | | |

 Floyd-------------------| 2w | --- | --- | ---

 Urban land. | | | |

 | | | |

4226: | | | |

 Lawler, 24 to 40 inches | | | |

 to sand and gravel-----| 2s | --- | --- | ---

 Urban land. | | | |

 | | | |

4284: | | | |

 Flagler-----------------| 3s | --- | --- | ---

 Urban land. | | | |

 | | | |

4284B: | | | |

 Flagler-----------------| 3e | --- | --- | ---

 Urban land. | | | |

 | | | |

4377B: | | | |

 Dinsdale----------------| 2e | --- | --- | ---

 Urban land. | | | |

 | | | |

4377C: | | | |

 Dinsdale----------------| 3e | --- | --- | ---

 Urban land. | | | |

 | | | |

4382: | | | |

 Maxfield----------------| 2w | --- | --- | ---

 Urban land. | | | |

 | | | |

4391B--------------------| | --- | --- | ---

 Clyde-------------------| 2w | | |

 Floyd-------------------| 2w | | |

 Urban land. | | | |

 | | | |

4398: | | | |

 Tripoli-----------------| 2w | --- | --- | ---

 Urban land. | | | |

 | | | |

4399: | | | |

 Readlyn-----------------| 1 | --- | --- | ---

 Urban land. | | | |

 | | | |

4408B: | | | |

 Olin--------------------| 2e | --- | --- | ---

 Urban land. | | | |

 | | | |

 See footnote at end of table.
Black Hawk County, Iowa 179

Table 7.--Land Capability and Yields per Acre of Pasture--Continued

_____________________________________________________________________________

 | | | |

 Map symbol | Land |Bromegrass- | Kentucky | Smooth

 and soil name | capability | alfalfa | bluegrass | bromegrass _____________________________________________________________________________

 | | AUM* | AUM* | AUM*

 | | | |

4408C: | | | |

 Olin--------------------| 3e | --- | --- | ---

 Urban land. | | | |

 | | | |

4426B: | | | |

 Aredale-----------------| 2e | --- | --- | ---

 Urban land. | | | |

 | | | |

4426C: | | | |

 Aredale-----------------| 3e | --- | --- | ---

 Urban land. | | | |

 | | | |

4585---------------------| | --- | --- | ---

 Spillville, occasionally| | | |

 flooded----------------| 2w | | |

 Coland, occasionally | | | |

 flooded----------------| 2w | | |

 Urban land. | | | |

 | | | |

4761: | | | |

 Franklin----------------| 1 | --- | --- | ---

 Urban land. | | | |

 | | | |

4771B: | | | |

 Waubeek-----------------| 2e | --- | --- | ---

 Urban land. | | | |

 | | | |

4771D: | | | |

 Waubeek-----------------| 2e | --- | --- | ---

 Urban land. | | | |

 | | | |

4798: | | | |

 Protivin----------------| 2w | --- | --- | ---

 Urban land. | | | |

 | | | |

4911B--------------------| | --- | --- | ---

 Colo--------------------| 2w | | |

 Ely---------------------| 2e | | |

 Urban land. | | | |

 | | | |

4933: | | | |

 Sawmill, occasionally | | | |

 flooded----------------| 2w | --- | --- | ---

 Urban land. | | | |

 | | | |

4946: | | | |

 Orthents, loamy. | | | |

 Urban land. | | | |

 | | | |

5010. | | | |

 Pits, sand and gravel | | | |

 | | | |

5030. | | | |

 Pits, limestone quarries| | | |

 | | | |

5040. | | | |

 Orthents, loamy | | | |

 | | | |

 See footnote at end of table.
180 Soil Survey of

Table 7.--Land Capability and Yields per Acre of Pasture--Continued

_____________________________________________________________________________

 | | | |

 Map symbol | Land |Bromegrass- | Kentucky | Smooth

 and soil name | capability | alfalfa | bluegrass | bromegrass _____________________________________________________________________________

 | | AUM* | AUM* | AUM*

 | | | |

5053. | | | |

 Psammaquents, frequently| | | |

 flooded | | | |

 | | | |

5080. | | | |

 Orthents, sanitary | | | |

 landfill | | | |

 | | | |

AW. | | | |

 Animal waste | | | |

 | | | |

SL. | | | |

 Sewage lagoon | | | |

 | | | |

W. | | | |

 Water | | | |

 | | | | _____________________________________________________________________________

 * Animal unit month: The amount of forage or feed required to feed one

animal unit (one cow, one horse, one mule, five goats, or five sheep) for 30

days.
Black Hawk County, Iowa 181

Table 8.--Prime Farmland

(Only the soils considered prime farmland are listed. Urban or built-up areas of the soils listed are

 not considered prime farmland. If a soil is prime farmland only under certain conditions, the

 conditions are specified in parentheses after the soil name)

_______________________________________________________________________________________________________

 |

 Map | Soil name

symbol | _______________________________________________________________________________________________________

 |

7 |Wiota silty clay loam, 0 to 2 percent slopes

83B |Kenyon loam, 2 to 5 percent slopes

84 |Clyde silty clay loam, 0 to 3 percent slopes (where drained)

88 |Nevin silty clay loam, 0 to 2 percent slopes

133 |Colo silty clay loam, 0 to 2 percent slopes, occasionally flooded (where drained and

 | either protected from flooding or not frequently flooded during the growing season)

135 |Coland clay loam, 0 to 2 percent slopes, occasionally flooded (where drained and either

 | protected from flooding or not frequently flooded during the growing season)

171B |Bassett loam, 2 to 5 percent slopes

175 |Dickinson fine sandy loam, 0 to 2 percent slopes

175B |Dickinson fine sandy loam, 2 to 5 percent slopes

177 |Saude loam, 0 to 2 percent slopes

177B |Saude loam, 2 to 5 percent slopes

178 |Waukee loam, 0 to 2 percent slopes

178B |Waukee loam, 2 to 5 percent slopes

184 |Klinger silty clay loam, 1 to 3 percent slopes

198B |Floyd loam, 1 to 4 percent slopes

213B |Rockton loam, 30 to 40 inches to limestone, 2 to 5 percent slopes

290 |Dells silt loam, 0 to 2 percent slopes

377B |Dinsdale silty clay loam, 2 to 5 percent slopes

382 |Maxfield silty clay loam, 0 to 2 percent slopes (where drained)

391B |Clyde-Floyd complex, 1 to 4 percent slopes (where drained)

395B |Marquis loam, 2 to 5 percent slopes

398 |Tripoli clay loam, 0 to 2 percent slopes (where drained)

399 |Readlyn loam, 1 to 3 percent slopes

408B |Olin fine sandy loam, 2 to 5 percent slopes

426B |Aredale loam, 2 to 5 percent slopes

468B |Dunkerton sandy loam, 2 to 5 percent slopes

471 |Oran loam, 1 to 3 percent slopes (where drained)

485 |Spillville loam, 0 to 2 percent slopes, occasionally flooded (where protected from flooding

 | or not frequently flooded during the growing season)

585 |Spillville-Coland complex, 0 to 2 percent slopes, occasionally flooded (where drained and

 | either protected from flooding or not frequently flooded during the growing season)

626 |Hayfield loam, 24 to 40 inches to sand and gravel, 0 to 2 percent slopes

761 |Franklin silt loam, 1 to 3 percent slopes

771B |Waubeek silt loam, 2 to 5 percent slopes

775B |Billett sandy loam, 2 to 5 percent slopes

777 |Wapsie loam, 1 to 3 percent slopes

781B |Lourdes loam, 2 to 5 percent slopes

782B |Donnan loam, 2 to 5 percent slopes

798 |Protivin loam, 1 to 3 percent slopes

877B |Dinsmore silty clay loam, 2 to 5 percent slopes

884 |Klingmore silty clay loam, 1 to 3 percent slopes

911B |Colo-Ely complex, 2 to 5 percent slopes (where drained and either protected from flooding

 | or not frequently flooded during the growing season)

933 |Sawmill silty clay loam, 0 to 2 percent slopes, occasionally flooded (where drained and

 | either protected from flooding or not frequently flooded during the growing season)

982 |Maxmore silty clay loam, 0 to 2 percent slopes (where drained)

1152 |Marshan clay loam, 24 to 40 inches to sand and gravel, 0 to 2 percent slopes (where drained)

1226 |Lawler loam, 24 to 40 inches to sand and gravel, 0 to 2 percent slopes

 | _______________________________________________________________________________________________________
Table 9.--Windbreaks and Environmental Plantings (Absence of an entry indicates that trees generally do not grow to the given height) ____________________________________________________________________________________________________________

 | Trees having predicted 20-year average height, in feet, of-- Map symbol |__________________________________________________________________________________ and soil name | <8 | 8-15 | 16-25 | 26-35 ____________________________________________________________________________________________________________ | | | | 7: | | | |  Wiota-------------------|Silky dogwood-------|American |Washington hawthorn,|Austrian pine,  | | cranberrybush, Amur| blue spruce, | Norway spruce  | | honeysuckle, Amur | eastern arborvitae,|  | | privet | white fir |  | | | | 41, 41B. | | | |  Sparta | | | |  | | | | 41C: | | | |  Sparta------------------|Siberian peashrub, |Eastern redcedar----|Russian olive, jack |Eastern white pine  | common lilac | | pine, red pine, |  | | | Austrian pine, |  | | | Siberian elm, green|  | | | ash, honeylocust |  | | | | 41D: | | | |  Sparta------------------|Siberian peashrub, |American |Norway spruce-------|Eastern white pine,  | gray dogwood, | cranberrybush, Amur| | jack pine, red pin | manyflower | maple, common | |  | cotoneaster, silky | lilac, eastern | |  | dogwood | redcedar | |  | | | | 63B: | | | |  Chelsea-----------------|Siberian peashrub, |Eastern redcedar----|Jack pine, red pine,|Eastern white pine  | common lilac | | Austrian pine |  | | | | 63C: | | | |  Chelsea-----------------|Siberian peashrub, |Eastern redcedar----|Jack pine, red pine,|Eastern white pine  | common lilac | | Austrian pine |  | | | | 63D: | | | |  Chelsea-----------------|Siberian peashrub, |Eastern redcedar----|Jack pine, red pine,|Eastern white pine  | common lilac | | Austrian pine |  | | | | 83B: | | | |  Kenyon------------------| --- |Siberian peashrub, |Eastern arborvitae, |Russian olive,  | | common lilac, gray | eastern redcedar, | common hackberry,  | | dogwood, redosier | Amur maple, blue | green ash, eastern  | | dogwood | spruce | white pine  | | | | 
Table 9.--Windbreaks and Environmental Plantings--Continued _____________________________________________________________________________________________________________

 | Trees having predicted 20-year average height, in feet, of-- Map symbol |___________________________________________________________________________________ and soil name | <8 | 8-15 | 16-25 | 26-35 _____________________________________________________________________________________________________________ | | | | 83C: | | | |  Kenyon------------------| --- |Siberian peashrub, |Eastern arborvitae, |Russian olive,  | | common lilac, gray | eastern redcedar, | common hackberry,  | | dogwood, redosier | Amur maple, blue | green ash, eastern  | | dogwood | spruce | white pine  | | | | 83C2: | | | |  Kenyon, moderately | | | |  eroded-----------------| --- |Siberian peashrub, |Eastern arborvitae, |Russian olive,  | | common lilac, gray | eastern redcedar, | common hackberry,  | | dogwood, redosier | Amur maple, blue | green ash, eastern  | | dogwood | spruce | white pine  | | | | 83D2: | | | |  Kenyon, moderately | | | |  eroded-----------------| --- |Siberian peashrub, |Eastern arborvitae, |Russian olive,  | | common lilac, gray | eastern redcedar, | common hackberry,  | | dogwood, redosier | Amur maple, blue | green ash, eastern  | | dogwood | spruce | white pine  | | | | 84: | | | |  Clyde-------------------| --- |American plum, |Amur maple, eastern |Golden willow------- | | redosier dogwood | arborvitae, white |  | | | spruce, common |  | | | hackberry, tall |  | | | purple willow |  | | | | 88: | | | |  Nevin-------------------|Silky dogwood-------|American |Washington hawthorn,|Austrian pine,  | | cranberrybush, Amur| blue spruce, | Norway spruce  | | honeysuckle, Amur | eastern arborvitae,|  | | privet | white fir |  | | | | 133: | | | |  Colo, occasionally | | | |  flooded----------------| --- |American plum, |Amur maple, white |Golden willow------- | | redosier dogwood | fir, white spruce, |  | | | common hackberry, |  | | | tall purple willow |  | | | | 135: | | | |  Coland, occasionally | | | |  flooded----------------| --- |American plum, |Amur maple, eastern |Golden willow------- | | cotoneaster, | arborvitae, white |  | | redosier dogwood | spruce, common |  | | | hackberry, tall |  | | | purple willow |  | | | | 
Table 9.--Windbreaks and Environmental Plantings--Continued ____________________________________________________________________________________________________________

 | Trees having predicted 20-year average height, in feet, of-- Map symbol |__________________________________________________________________________________ and soil name | <8 | 8-15 | 16-25 | 26-35 ____________________________________________________________________________________________________________ | | | | 159: | | | |  Finchford---------------|Siberian peashrub, |Sargent crabapple, |Russian olive, jack |Eastern white pine  | common lilac | eastern redcedar | pine, red pine, |  | | | Austrian pine, |  | | | Siberian elm, green|  | | | ash |  | | | | 159C: | | | |  Finchford---------------|Siberian peashrub, |Sargent crabapple, |Russian olive, jack |Eastern white pine  | common lilac | eastern redcedar | pine, red pine, |  | | | Austrian pine, |  | | | Siberian elm, green|  | | | ash |  | | | | 171B: | | | |  Bassett-----------------| --- |Siberian peashrub, |Eastern arborvitae, |Russian olive,  | | common lilac, gray | eastern redcedar, | common hackberry,  | | dogwood, redosier | Amur maple, blue | green ash, eastern  | | dogwood | spruce | white pine  | | | | 175: | | | |  Dickinson---------------|Common lilac--------|Siberian peashrub, |Amur maple, common |Norway spruce,  | | Russian olive, | hackberry, red | honeylocust  | | eastern redcedar | pine, eastern white|  | | | pine, green ash |  | | | | 175B: | | | |  Dickinson---------------|Common lilac--------|Siberian peashrub, |Amur maple, common |Norway spruce,  | | Russian olive, | hackberry, red | honeylocust  | | eastern redcedar | pine, eastern white|  | | | pine, green ash |  | | | | 177: | | | |  Saude-------------------|Siberian peashrub, |Manchurian |Russian olive, bur | ---  | common lilac | crabapple, common | oak, green ash, |  | | hackberry, eastern | eastern white pine,|  | | redcedar | jack pine, |  | | | honeylocust |  | | | | 177B: | | | |  Saude-------------------|Siberian peashrub, |Manchurian |Russian olive, bur | ---  | common lilac | crabapple, common | oak, green ash, |  | | hackberry, eastern | eastern white pine,|  | | redcedar | jack pine, |  | | | honeylocust |  | | | | 
Table 9.--Windbreaks and Environmental Plantings--Continued _____________________________________________________________________________________________________________

 | Trees having predicted 20-year average height, in feet, of-- Map symbol |___________________________________________________________________________________ and soil name | <8 | 8-15 | 16-25 | 26-35 _____________________________________________________________________________________________________________ | | | | 178: | | | |  Waukee------------------|Siberian peashrub, |Manchurian |Russian olive, bur | ---  | common lilac | crabapple, common | oak, green ash, |  | | hackberry, eastern | eastern white pine,|  | | redcedar | jack pine, |  | | | honeylocust |  | | | | 178B: | | | |  Waukee------------------|Siberian peashrub, |Manchurian |Russian olive, bur | ---  | common lilac | crabapple, common | oak, green ash, |  | | hackberry, eastern | eastern white pine,|  | | redcedar | jack pine, |  | | | honeylocust |  | | | | 184: | | | |  Klinger-----------------| --- |Common lilac, |Eastern arborvitae, |Austrian pine,  | | redosier dogwood | white spruce, Amur | eastern white pine, | | | maple, blue spruce | common hackberry,  | | | | green ash  | | | | 198B: | | | |  Floyd-------------------| --- |Common lilac, |Eastern arborvitae, |Austrian pine,  | | redosier dogwood | white spruce, Amur | eastern white pine, | | | maple, blue spruce | common hackberry,  | | | | green ash  | | | | 213B: | | | |  Rockton, 30 to 40 inches| | | |  to limestone-----------|Siberian peashrub, |Eastern redcedar----|Manchurian |Siberian elm,  | common lilac, | | crabapple, Russian | honeylocust  | cotoneaster | | olive, common |  | | | hackberry, eastern |  | | | white pine, green |  | | | ash, jack pine |  | | | | 221: | | | |  Klossner----------------|Common ninebark, |American |Black Hills spruce, |Manchurian  | silky dogwood | cranberrybush, | eastern arborvitae,| crabapple, Norway  | | nannyberry | white spruce | spruce, eastern  | | | | white pine, green  | | | | ash  | | | | 
Table 9.--Windbreaks and Environmental Plantings--Continued ____________________________________________________________________________________________________________

 | Trees having predicted 20-year average height, in feet, of-- Map symbol |__________________________________________________________________________________ and soil name | <8 | 8-15 | 16-25 | 26-35 ____________________________________________________________________________________________________________ | | | | 284: | | | |  Flagler-----------------|Siberian peashrub, |Manchurian |Russian olive, bur | ---  | common lilac | crabapple, common | oak, green ash, |  | | hackberry, eastern | eastern white pine,|  | | redcedar | jack pine, |  | | | honeylocust |  | | | | 284B: | | | |  Flagler-----------------|Siberian peashrub, |Manchurian |Russian olive, bur | ---  | common lilac | crabapple, common | oak, green ash, |  | | hackberry, eastern | eastern white pine,|  | | redcedar | jack pine, |  | | | honeylocust |  | | | | 290: | | | |  Dells-------------------|Nannyberry, redosier|American |White spruce--------|Eastern white pine,  | dogwood | cranberrybush, | | red maple, red  | | common lilac, silky| | pine, silver maple | | dogwood, eastern | | white ash  | | arborvitae | |  | | | | 354. | | | |  Aquolls, ponded | | | |  | | | | 377B: | | | |  Dinsdale----------------| --- |Siberian peashrub, |Eastern arborvitae, |Russian olive,  | | common lilac, gray | eastern redcedar, | common hackberry,  | | dogwood, redosier | Amur maple, blue | green ash, eastern  | | dogwood | spruce | white pine  | | | | 377C: | | | |  Dinsdale----------------| --- |Siberian peashrub, |Eastern arborvitae, |Russian olive,  | | common lilac, gray | eastern redcedar, | common hackberry,  | | dogwood, redosier | Amur maple, blue | green ash, eastern  | | dogwood | spruce | white pine  | | | | 377C2: | | | |  Dinsdale, moderately | | | |  eroded-----------------| --- |Siberian peashrub, |Eastern arborvitae, |Russian olive,  | | common lilac, gray | eastern redcedar, | common hackberry,  | | dogwood, redosier | Amur maple, blue | green ash, eastern  | | dogwood | spruce | white pine  | | | | 
Table 9.--Windbreaks and Environmental Plantings--Continued _____________________________________________________________________________________________________________

 | Trees having predicted 20-year average height, in feet, of-- Map symbol |___________________________________________________________________________________ and soil name | <8 | 8-15 | 16-25 | 26-35 _____________________________________________________________________________________________________________ | | | | 382: | | | |  Maxfield----------------| --- |American plum, |Amur maple, eastern |Golden willow------- | | redosier dogwood | arborvitae, white |  | | | spruce, common |  | | | hackberry, tall |  | | | purple willow |  | | | | 391B: | | | |  Clyde-------------------| --- |American plum, |Amur maple, eastern |Golden willow------- | | redosier dogwood | arborvitae, white |  | | | spruce, common |  | | | hackberry, tall |  | | | purple willow |  | | | |  Floyd-------------------| --- |Common lilac, |Eastern arborvitae, |Austrian pine,  | | redosier dogwood | white spruce, Amur | eastern white pine, | | | maple, blue spruce | common hackberry,  | | | | green ash  | | | | 395B: | | | |  Marquis-----------------| --- |Siberian peashrub, |Eastern arborvitae, |Russian olive,  | | common lilac, gray | eastern redcedar, | common hackberry,  | | dogwood, redosier | Amur maple, blue | green ash, eastern  | | dogwood | spruce | white pine  | | | | 398: | | | |  Tripoli-----------------| --- |Siberian peashrub, |Eastern redcedar, |Green ash, golden  | | common lilac, | bur oak, white | willow, honeylocust | | eastern arborvitae | spruce, common |  | | | hackberry |  | | | | 399: | | | |  Readlyn-----------------| --- |Common lilac, |Eastern arborvitae, |Austrian pine,  | | redosier dogwood | white spruce, Amur | eastern white pine, | | | maple, blue spruce | common hackberry,  | | | | green ash  | | | | 408B: | | | |  Olin--------------------|Common lilac--------|Siberian peashrub, |Amur maple, common |Norway spruce,  | | cotoneaster, | hackberry, red | honeylocust  | | Russian olive, | pine, eastern white|  | | eastern redcedar | pine, green ash |  | | | | 
Table 9.--Windbreaks and Environmental Plantings--Continued ____________________________________________________________________________________________________________

 | Trees having predicted 20-year average height, in feet, of-- Map symbol |__________________________________________________________________________________ and soil name | <8 | 8-15 | 16-25 | 26-35 ____________________________________________________________________________________________________________ | | | | 408C: | | | |  Olin--------------------|Common lilac--------|Siberian peashrub, |Amur maple, common |Norway spruce,  | | cotoneaster, | hackberry, red | honeylocust  | | Russian olive, | pine, eastern white|  | | eastern redcedar | pine, green ash |  | | | | 412C. | | | |  Emeline | | | |  | | | | 426B, 426C, 426C2. | | | |  Aredale | | | |  | | | | 468B: | | | |  Dunkerton---------------|Common lilac--------|Siberian peashrub, |Amur maple, common |Norway spruce,  | | cotoneaster, | hackberry, red | honeylocust  | | Russian olive, | pine, eastern white|  | | eastern redcedar | pine, green ash |  | | | | 468C: | | | |  Dunkerton---------------|Common lilac--------|Siberian peashrub, |Amur maple, common |Norway spruce,  | | cotoneaster, | hackberry, red | honeylocust  | | Russian olive, | pine, eastern white|  | | eastern redcedar | pine, green ash |  | | | | 471: | | | |  Oran--------------------| --- |Common lilac, |Eastern arborvitae, |Austrian pine,  | | redosier dogwood | white spruce, Amur | eastern white pine | | | maple, blue spruce | common hackberry,  | | | | green ash  | | | | 485: | | | |  Spillville, occasionally| | | |  flooded----------------| --- |Common lilac, |Eastern arborvitae, |Austrian pine,  | | redosier dogwood | white spruce, Amur | eastern white pine | | | maple, blue spruce | common hackberry,  | | | | green ash  | | | | 585: | | | |  Spillville, occasionally| | | |  flooded----------------| --- |Common lilac, |Eastern arborvitae, |Austrian pine,  | | redosier dogwood | white spruce, Amur | eastern white pine | | | maple, blue spruce | common hackberry,  | | | | green ash  | | | | 
Table 9.--Windbreaks and Environmental Plantings--Continued _____________________________________________________________________________________________________________

 | Trees having predicted 20-year average height, in feet, of-- Map symbol |___________________________________________________________________________________ and soil name | <8 | 8-15 | 16-25 | 26-35 _____________________________________________________________________________________________________________ | | | | 585: | | | |  Coland, occasionally | | | |  flooded----------------| --- |American plum, |Amur maple, eastern |Golden willow------- | | cotoneaster, | arborvitae, white |  | | redosier dogwood | spruce, common |  | | | hackberry, tall |  | | | purple willow |  | | | | 626: | | | |  Hayfield, 24 to 40 | | | |  inches to sand and | | | |  gravel-----------------|Nannyberry, redosier|American |White spruce--------|Eastern white pine,  | dogwood, silky | cranberrybush, | | red maple, red  | dogwood | common lilac, | | pine, silver maple, | | eastern arborvitae | | white ash  | | | | 761: | | | |  Franklin----------------| --- |Common lilac, |Eastern arborvitae, |Austrian pine,  | | redosier dogwood | white spruce, Amur | eastern white pine, | | | maple, blue spruce | common hackberry,  | | | | green ash  | | | | 771B: | | | |  Waubeek-----------------| --- |Siberian peashrub, |Eastern arborvitae, |Russian olive,  | | common lilac, gray | eastern redcedar, | common hackberry,  | | dogwood, redosier | Amur maple, blue | green ash, eastern  | | dogwood | spruce | white pine  | | | | 775B: | | | |  Billett-----------------|Siberian peashrub, |American |Norway spruce-------|Eastern white pine,  | gray dogwood, | cranberrybush, Amur| | jack pine, red pine | manyflower | maple, common | |  | cotoneaster, silky | lilac, eastern | |  | dogwood | redcedar | |  | | | | 776C: | | | |  Lilah-------------------|Siberian peashrub, |Eastern redcedar----|Jack pine, red pine,|Eastern white pine  | common lilac | | Austrian pine |  | | | | 777: | | | |  Wapsie------------------|Siberian peashrub, |Manchurian |Russian olive, bur | ---  | common lilac | crabapple, common | oak, green ash, |  | | hackberry, eastern | eastern white pine,|  | | redcedar | jack pine, |  | | | honeylocust |  | | | | 
Table 9.--Windbreaks and Environmental Plantings--Continued ____________________________________________________________________________________________________________

 | Trees having predicted 20-year average height, in feet, of-- Map symbol |__________________________________________________________________________________ and soil name | <8 | 8-15 | 16-25 | 26-35 ____________________________________________________________________________________________________________ | | | | 781B: | | | |  Lourdes-----------------| --- |Siberian peashrub, |Eastern arborvitae, |Russian olive,  | | common lilac, gray | eastern redcedar, | common hackberry,  | | dogwood, redosier | Amur maple, blue | green ash, eastern  | | dogwood | spruce | white pine  | | | | 781C2: | | | |  Lourdes, moderately | | | |  eroded-----------------| --- |Siberian peashrub, |Eastern arborvitae, |Russian olive,  | | common lilac, gray | eastern redcedar, | common hackberry,  | | dogwood, redosier | Amur maple, blue | green ash, eastern  | | dogwood | spruce | white pine  | | | | 782B: | | | |  Donnan------------------| --- |Common lilac, |Eastern arborvitae, |Austrian pine,  | | redosier dogwood | white spruce, Amur | eastern white pine | | | maple, blue spruce | common hackberry,  | | | | green ash  | | | | 798: | | | |  Protivin----------------|Gray dogwood, silky |American plum, |Amur maple, eastern |Norway spruce,  | dogwood | redosier dogwood | redcedar | common hackberry,  | | | | red pine  | | | | 809B: | | | |  Bertram-----------------|Siberian peashrub, |Eastern redcedar----|Manchurian |Siberian elm,  | common lilac | | crabapple, Russian | honeylocust  | | | olive, common |  | | | hackberry, eastern |  | | | white pine, green |  | | | ash |  | | | | 877B: | | | |  Dinsmore----------------|Silky dogwood-------|American |Washington hawthorn,|Austrian pine,  | | cranberrybush, Amur| blue spruce, | Norway spruce  | | honeysuckle, Amur | eastern arborvitae,|  | | privet | white fir |  | | | | 884: | | | |  Klingmore---------------|Silky dogwood-------|American |Washington hawthorn,|Austrian pine,  | | cranberrybush, Amur| blue spruce, | Norway spruce  | | honeysuckle, Amur | eastern arborvitae,|  | | privet | white fir |  | | | | 
Table 9.--Windbreaks and Environmental Plantings--Continued _____________________________________________________________________________________________________________

 | Trees having predicted 20-year average height, in feet, of-- Map symbol |___________________________________________________________________________________ and soil name | <8 | 8-15 | 16-25 | 26-35 _____________________________________________________________________________________________________________ | | | | 911B: | | | |  Colo--------------------| --- |American plum, |Amur maple, white |Golden willow------- | | redosier dogwood | fir, white spruce, |  | | | common hackberry, |  | | | tall purple willow |  | | | |  Ely---------------------|Silky dogwood-------|American |Washington hawthorn,|Austrian pine,  | | cranberrybush, Amur| blue spruce, | Norway spruce  | | honeysuckle, Amur | eastern arborvitae,|  | | privet | white fir |  | | | | 933: | | | |  Sawmill, occasionally | | | |  flooded----------------| --- |American plum, |Amur maple, eastern |Golden willow------- | | redosier dogwood | arborvitae, white |  | | | spruce, common |  | | | hackberry, tall |  | | | purple willow |  | | | | 982: | | | |  Maxmore-----------------| --- |American plum, |Amur maple, eastern |Golden willow------- | | redosier dogwood | arborvitae, white |  | | | spruce, common |  | | | hackberry, tall |  | | | purple willow |  | | | | 1152: | | | |  Marshan, 24 to 40 inches| | | |  to sand and gravel-----|Common ninebark, |American |Balsam fir, white |Green ash, red  | nannyberry, | cranberrybush, | spruce | maple, silver  | redosier dogwood, | eastern arborvitae | | maple, white ash  | silky dogwood | | |  | | | | 1226: | | | |  Lawler, 24 to 40 inches | | | |  to sand and gravel-----| --- |Common lilac, |Eastern arborvitae, |Austrian pine,  | | redosier dogwood | white spruce, Amur | eastern white pine, | | | maple, blue spruce | common hackberry,  | | | | green ash  | | | | 1285G: | | | |  Burkhardt---------------|Siberian peashrub, |American |Norway spruce-------|Eastern white pine,  | gray dogwood, | cranberrybush, Amur| | jack pine, red pine | manyflower | maple, common | |  | cotoneaster, silky | lilac, eastern | |  | dogwood | redcedar | |  | | | | 
Table 9.--Windbreaks and Environmental Plantings--Continued ____________________________________________________________________________________________________________

 | Trees having predicted 20-year average height, in feet, of-- Map symbol |__________________________________________________________________________________ and soil name | <8 | 8-15 | 16-25 | 26-35 ____________________________________________________________________________________________________________ | | | | 1285G: | | | |  Bassett. | | | |  | | | |  Chelsea. | | | |  | | | | 1585: | | | |  Spillville, frequently | | | |  flooded----------------| --- |Common lilac, |Eastern arborvitae, |Austrian pine,  | | redosier dogwood | white spruce, Amur | eastern white pine | | | maple, blue spruce | common hackberry,  | | | | green ash  | | | |  Coland, frequently | | | |  flooded. | | | |  | | | |  Aquolls, ponded. | | | |  | | | | 1586: | | | |  Sigglekov, frequently | | | |  flooded. | | | |  | | | |  Fluvaquents, frequently | | | |  flooded. | | | |  | | | |  Aquents, ponded. | | | |  | | | | 4000. | | | |  Urban land | | | |  | | | | 4007: | | | |  Wiota-------------------|Silky dogwood-------|American |Washington hawthorn,|Austrian pine,  | | cranberrybush, Amur| blue spruce, | Norway spruce  | | honeysuckle, Amur | eastern arborvitae,|  | | privet | white fir |  | | | |  Urban land. | | | |  | | | | 4041, 4041B. | | | |  Sparta-Urban land | | | |  | | | | 4041C: | | | |  Sparta------------------|Siberian peashrub, |Eastern redcedar----|Russian olive, jack |Eastern white pine  | common lilac | | pine, red pine, |  | | | Austrian pine, |  | | | Siberian elm, green|  | | | ash, honeylocust |  | | | | 
Table 9.--Windbreaks and Environmental Plantings--Continued _____________________________________________________________________________________________________________

 | Trees having predicted 20-year average height, in feet, of-- Map symbol |___________________________________________________________________________________ and soil name | <8 | 8-15 | 16-25 | 26-35 _____________________________________________________________________________________________________________ | | | | 4041C: | | | |  Urban land. | | | |  | | | | 4041D: | | | |  Sparta------------------|Siberian peashrub, |American |Norway spruce-------|Eastern white pine,  | gray dogwood, | cranberrybush, Amur| | jack pine, red pine | manyflower | maple, common | |  | cotoneaster, silky | lilac, eastern | |  | dogwood | redcedar | |  | | | |  Urban land. | | | |  | | | | 4063B: | | | |  Chelsea-----------------|Siberian peashrub, |Eastern redcedar----|Jack pine, red pine,|Eastern white pine  | common lilac | | Austrian pine |  | | | |  Urban land. | | | |  | | | | 4063C: | | | |  Chelsea-----------------|Siberian peashrub, |Eastern redcedar----|Jack pine, red pine,|Eastern white pine  | common lilac | | Austrian pine |  | | | |  Urban land. | | | |  | | | | 4063D: | | | |  Chelsea-----------------|Siberian peashrub, |Eastern redcedar----|Jack pine, red pine,|Eastern white pine  | common lilac | | Austrian pine |  | | | |  Urban land. | | | |  | | | | 4083B: | | | |  Kenyon------------------| --- |Siberian peashrub, |Eastern arborvitae, |Russian olive,  | | common lilac, gray | eastern redcedar, | common hackberry,  | | dogwood, redosier | Amur maple, blue | green ash, eastern  | | dogwood | spruce | white pine  | | | |  Urban land. | | | |  | | | | 4083C: | | | |  Kenyon------------------| --- |Siberian peashrub, |Eastern arborvitae, |Russian olive,  | | common lilac, gray | eastern redcedar, | common hackberry,  | | dogwood, redosier | Amur maple, blue | green ash, eastern  | | dogwood | spruce | white pine  | | | |  Urban land. | | | |  | | | | 
Table 9.--Windbreaks and Environmental Plantings--Continued ____________________________________________________________________________________________________________

 | Trees having predicted 20-year average height, in feet, of-- Map symbol |__________________________________________________________________________________ and soil name | <8 | 8-15 | 16-25 | 26-35 ____________________________________________________________________________________________________________ | | | | 4083D: | | | |  Kenyon------------------| --- |Siberian peashrub, |Eastern arborvitae, |Russian olive,  | | common lilac, gray | eastern redcedar, | common hackberry,  | | dogwood, redosier | Amur maple, blue | green ash, eastern  | | dogwood | spruce | white pine  | | | |  Urban land. | | | |  | | | | 4084: | | | |  Clyde-------------------| --- |American plum, |Amur maple, eastern |Golden willow------ | | redosier dogwood | arborvitae, white |  | | | spruce, common |  | | | hackberry, tall |  | | | purple willow |  | | | |  Urban land. | | | |  | | | | 4088: | | | |  Nevin-------------------|Silky dogwood-------|American |Washington hawthorn,|Austrian pine,  | | cranberrybush, Amur| blue spruce, | Norway spruce  | | honeysuckle, Amur | eastern arborvitae,|  | | privet | white fir |  | | | |  Urban land. | | | |  | | | | 4133: | | | |  Colo, occasionally | | | |  flooded----------------| --- |American plum, |Amur maple, white |Golden willow------ | | redosier dogwood | fir, white spruce, |  | | | common hackberry, |  | | | tall purple willow |  | | | |  Urban land. | | | |  | | | | 4135: | | | |  Coland, occasionally | | | |  flooded----------------| --- |American plum, |Amur maple, eastern |Golden willow------ | | cotoneaster, | arborvitae, white |  | | redosier dogwood | spruce, common |  | | | hackberry, tall |  | | | purple willow |  | | | |  Urban land. | | | |  | | | | 
Table 9.--Windbreaks and Environmental Plantings--Continued _____________________________________________________________________________________________________________

 | Trees having predicted 20-year average height, in feet, of-- Map symbol |___________________________________________________________________________________ and soil name | <8 | 8-15 | 16-25 | 26-35 _____________________________________________________________________________________________________________ | | | | 4152: | | | |  Marshan, 24 to 40 inches| | | |  to sand and gravel-----|Common ninebark, |American |Balsam fir, white |Green ash, red  | nannyberry, | cranberrybush, | spruce | maple, silver  | redosier dogwood, | eastern arborvitae | | maple, white ash  | silky dogwood | | |  | | | |  Urban land. | | | |  | | | | 4159: | | | |  Finchford---------------|Siberian peashrub, |Sargent crabapple, |Russian olive, jack |Eastern white pine  | common lilac | eastern redcedar | pine, red pine, |  | | | Austrian pine, |  | | | Siberian elm, green|  | | | ash |  | | | |  Urban land. | | | |  | | | | 4159C: | | | |  Finchford---------------|Siberian peashrub, |Sargent crabapple, |Russian olive, jack |Eastern white pine  | common lilac | eastern redcedar | pine, red pine, |  | | | Austrian pine, |  | | | Siberian elm, green|  | | | ash |  | | | |  Urban land. | | | |  | | | | 4171B: | | | |  Bassett-----------------| --- |Siberian peashrub, |Eastern arborvitae, |Russian olive,  | | common lilac, gray | eastern redcedar, | common hackberry,  | | dogwood, redosier | Amur maple, blue | green ash, eastern  | | dogwood | spruce | white pine  | | | |  Urban land. | | | |  | | | | 4171D: | | | |  Bassett-----------------| --- |Siberian peashrub, |Eastern arborvitae, |Russian olive,  | | common lilac, gray | eastern redcedar, | common hackberry,  | | dogwood, redosier | Amur maple, blue | green ash, eastern  | | dogwood | spruce | white pine  | | | |  Urban land. | | | |  | | | | 
Table 9.--Windbreaks and Environmental Plantings--Continued ____________________________________________________________________________________________________________

 | Trees having predicted 20-year average height, in feet, of-- Map symbol |__________________________________________________________________________________ and soil name | <8 | 8-15 | 16-25 | 26-35 ____________________________________________________________________________________________________________ | | | | 4175: | | | |  Dickinson---------------|Common lilac--------|Siberian peashrub, |Amur maple, common |Norway spruce,  | | Russian olive, | hackberry, red | honeylocust  | | eastern redcedar | pine, eastern white|  | | | pine, green ash |  | | | |  Urban land. | | | |  | | | | 4175B: | | | |  Dickinson---------------|Common lilac--------|Siberian peashrub, |Amur maple, common |Norway spruce,  | | Russian olive, | hackberry, red | honeylocust  | | eastern redcedar | pine, eastern white|  | | | pine, green ash |  | | | |  Urban land. | | | |  | | | | 4177: | | | |  Saude-------------------|Siberian peashrub, |Manchurian |Russian olive, bur | ---  | common lilac | crabapple, common | oak, green ash, |  | | hackberry, eastern | eastern white pine,|  | | redcedar | jack pine, |  | | | honeylocust |  | | | |  Urban land. | | | |  | | | | 4177B: | | | |  Saude-------------------|Siberian peashrub, |Manchurian |Russian olive, bur | ---  | common lilac | crabapple, common | oak, green ash, |  | | hackberry, eastern | eastern white pine,|  | | redcedar | jack pine, |  | | | honeylocust |  | | | |  Urban land. | | | |  | | | | 4178: | | | |  Waukee------------------|Siberian peashrub, |Manchurian |Russian olive, bur | ---  | common lilac | crabapple, common | oak, green ash, |  | | hackberry, eastern | eastern white pine,|  | | redcedar | jack pine, |  | | | honeylocust |  | | | |  Urban land. | | | |  | | | | 
Table 9.--Windbreaks and Environmental Plantings--Continued _____________________________________________________________________________________________________________

 | Trees having predicted 20-year average height, in feet, of-- Map symbol |___________________________________________________________________________________ and soil name | <8 | 8-15 | 16-25 | 26-35 _____________________________________________________________________________________________________________ | | | | 4184: | | | |  Klinger-----------------| --- |Common lilac, |Eastern arborvitae, |Austrian pine,  | | redosier dogwood | white spruce, Amur | eastern white pine, | | | maple, blue spruce | common hackberry,  | | | | green ash  | | | |  Urban land. | | | |  | | | | 4198B: | | | |  Floyd-------------------| --- |Common lilac, |Eastern arborvitae, |Austrian pine,  | | redosier dogwood | white spruce, Amur | eastern white pine, | | | maple, blue spruce | common hackberry,  | | | | green ash  | | | |  Urban land. | | | |  | | | | 4226: | | | |  Lawler, 24 to 40 inches | | | |  to sand and gravel-----| --- |Common lilac, |Eastern arborvitae, |Austrian pine,  | | redosier dogwood | white spruce, Amur | eastern white pine, | | | maple, blue spruce | common hackberry,  | | | | green ash  | | | |  Urban land. | | | |  | | | | 4284: | | | |  Flagler-----------------|Siberian peashrub, |Manchurian |Russian olive, bur | ---  | common lilac | crabapple, common | oak, green ash, |  | | hackberry, eastern | eastern white pine,|  | | redcedar | jack pine, |  | | | honeylocust |  | | | |  Urban land. | | | |  | | | | 4284B: | | | |  Flagler-----------------|Siberian peashrub, |Manchurian |Russian olive, bur | ---  | common lilac | crabapple, common | oak, green ash, |  | | hackberry, eastern | eastern white pine,|  | | redcedar | jack pine, |  | | | honeylocust |  | | | |  Urban land. | | | |  | | | | 
Table 9.--Windbreaks and Environmental Plantings--Continued ____________________________________________________________________________________________________________

 | Trees having predicted 20-year average height, in feet, of-- Map symbol |__________________________________________________________________________________ and soil name | <8 | 8-15 | 16-25 | 26-35 ____________________________________________________________________________________________________________ | | | | 4377B: | | | |  Dinsdale----------------| --- |Siberian peashrub, |Eastern arborvitae, |Russian olive,  | | common lilac, gray | eastern redcedar, | common hackberry,  | | dogwood, redosier | Amur maple, blue | green ash, eastern  | | dogwood | spruce | white pine  | | | |  Urban land. | | | |  | | | | 4377C: | | | |  Dinsdale----------------| --- |Siberian peashrub, |Eastern arborvitae, |Russian olive,  | | common lilac, gray | eastern redcedar, | common hackberry,  | | dogwood, redosier | Amur maple, blue | green ash, eastern  | | dogwood | spruce | white pine  | | | |  Urban land. | | | |  | | | | 4382: | | | |  Maxfield----------------| --- |American plum, |Amur maple, eastern |Golden willow------ | | redosier dogwood | arborvitae, white |  | | | spruce, common |  | | | hackberry, tall |  | | | purple willow |  | | | |  Urban land. | | | |  | | | | 4391B: | | | |  Clyde-------------------| --- |American plum, |Amur maple, eastern |Golden willow------ | | redosier dogwood | arborvitae, white |  | | | spruce, common |  | | | hackberry, tall |  | | | purple willow |  | | | |  Floyd-------------------| --- |Common lilac, |Eastern arborvitae, |Austrian pine,  | | redosier dogwood | white spruce, Amur | eastern white pine | | | maple, blue spruce | common hackberry,  | | | | green ash  | | | |  Urban land. | | | |  | | | | 4398: | | | |  Tripoli-----------------| --- |Siberian peashrub, |Eastern redcedar, |Green ash, golden  | | common lilac, | bur oak, white | willow, honeylocus | | eastern arborvitae | spruce, common |  | | | hackberry |  | | | |  Urban land. | | | |  | | | | 
Table 9.--Windbreaks and Environmental Plantings--Continued _____________________________________________________________________________________________________________

 | Trees having predicted 20-year average height, in feet, of-- Map symbol |___________________________________________________________________________________ and soil name | <8 | 8-15 | 16-25 | 26-35 _____________________________________________________________________________________________________________ | | | | 4399: | | | |  Readlyn-----------------| --- |Common lilac, |Eastern arborvitae, |Austrian pine,  | | redosier dogwood | white spruce, Amur | eastern white pine, | | | maple, blue spruce | common hackberry,  | | | | green ash  | | | |  Urban land. | | | |  | | | | 4408B: | | | |  Olin--------------------|Common lilac--------|Siberian peashrub, |Amur maple, common |Norway spruce,  | | cotoneaster, | hackberry, red | honeylocust  | | Russian olive, | pine, eastern white|  | | eastern redcedar | pine, green ash |  | | | |  Urban land. | | | |  | | | | 4408C: | | | |  Olin--------------------|Common lilac--------|Siberian peashrub, |Amur maple, common |Norway spruce,  | | cotoneaster, | hackberry, red | honeylocust  | | Russian olive, | pine, eastern white|  | | eastern redcedar | pine, green ash |  | | | |  Urban land. | | | |  | | | | 4426B, 4426C. | | | |  Aredale-Urban land | | | |  | | | | 4585: | | | |  Spillville, occasionally| | | |  flooded----------------| --- |Common lilac, |Eastern arborvitae, |Austrian pine,  | | redosier dogwood | white spruce, Amur | eastern white pine, | | | maple, blue spruce | common hackberry,  | | | | green ash  | | | |  Coland, occasionally | | | |  flooded----------------| --- |American plum, |Amur maple, eastern |Golden willow------- | | cotoneaster, | arborvitae, white |  | | redosier dogwood | spruce, common |  | | | hackberry, tall |  | | | purple willow |  | | | |  Urban land. | | | |  | | | | 
Table 9.--Windbreaks and Environmental Plantings--Continued ____________________________________________________________________________________________________________

 | Trees having predicted 20-year average height, in feet, of-- Map symbol |__________________________________________________________________________________ and soil name | <8 | 8-15 | 16-25 | 26-35 ____________________________________________________________________________________________________________ | | | | 4761: | | | |  Franklin----------------| --- |Common lilac, |Eastern arborvitae, |Austrian pine,  | | redosier dogwood | white spruce, Amur | eastern white pine | | | maple, blue spruce | common hackberry,  | | | | green ash  | | | |  Urban land. | | | |  | | | | 4771B: | | | |  Waubeek-----------------| --- |Siberian peashrub, |Eastern arborvitae, |Russian olive,  | | common lilac, gray | eastern redcedar, | common hackberry,  | | dogwood, redosier | Amur maple, blue | green ash, eastern  | | dogwood | spruce | white pine  | | | |  Urban land. | | | |  | | | | 4771D: | | | |  Waubeek-----------------| --- |Siberian peashrub, |Eastern arborvitae, |Russian olive,  | | common lilac, gray | eastern redcedar, | common hackberry,  | | dogwood, redosier | Amur maple, blue | green ash, eastern  | | dogwood | spruce | white pine  | | | |  Urban land. | | | |  | | | | 4798: | | | |  Protivin----------------|Gray dogwood, silky |American plum, |Amur maple, eastern |Norway spruce,  | dogwood | redosier dogwood | redcedar | common hackberry,  | | | | red pine  | | | |  Urban land. | | | |  | | | | 4911B: | | | |  Colo--------------------| --- |American plum, |Amur maple, white |Golden willow------ | | redosier dogwood | fir, white spruce, |  | | | common hackberry, |  | | | tall purple willow |  | | | |  Ely---------------------|Silky dogwood-------|American |Washington hawthorn,|Austrian pine,  | | cranberrybush, Amur| blue spruce, | Norway spruce  | | honeysuckle, Amur | eastern arborvitae,|  | | privet | white fir |  | | | |  Urban land. | | | |  | | | | 
Table 9.--Windbreaks and Environmental Plantings--Continued _____________________________________________________________________________________________________________

 | Trees having predicted 20-year average height, in feet, of-- Map symbol |___________________________________________________________________________________ and soil name | <8 | 8-15 | 16-25 | 26-35 _____________________________________________________________________________________________________________ | | | | 4933: | | | |  Sawmill, occasionally | | | |  flooded----------------| --- |American plum, |Amur maple, eastern |Golden willow------- | | redosier dogwood | arborvitae, white |  | | | spruce, common |  | | | hackberry, tall |  | | | purple willow |  | | | |  Urban land. | | | |  | | | | 4946. | | | |  Orthents, loamy-Urban | | | |  land | | | |  | | | | 5010. | | | |  Pits, sand and gravel | | | |  | | | | 5030. | | | |  Pits, limestone quarries| | | |  | | | | 5040. | | | |  Orthents, loamy | | | |  | | | | 5053. | | | |  Psammaquents, frequently| | | |  flooded | | | |  | | | | 5080. | | | |  Orthents, sanitary | | | |  landfill | | | |  | | | | AW. | | | |  Animal waste | | | |  | | | | SL. | | | |  Sewage lagoon | | | |  | | | | W. | | | |  Water | | | |  | | | | _____________________________________________________________________________________________________________
202 Soil Survey of

Table 10.--Forestland Productivity

(Only the soils that are commonly used as forestland are listed. See text for an

 explanation of terms used in this table)

_________________________________________________________________________________

 | Potential productivity | ___________________________________

 Map symbol and | | | |

 soil name | Common trees |Site | Volume | Trees to manage

 | |index|of wood |

 | | | fiber | _________________________________________________________________________________

 | | |cu ft/ac|

 | | | |

41D: | | | |

 Sparta------------------|Jack pine-----------| 57 | 86 |Eastern white pine,

 |Northern red oak----| 47 | 29 | jack pine, red

 |Red pine------------| --- | --- | pine

 | | | |

63B: | | | |

 Chelsea-----------------|Eastern white pine--| 83 | 186 |Eastern white pine,

 |Jack pine-----------| 70 | 100 | jack pine, red

 |Northern red oak----| 70 | 72 | pine

 |Quaking aspen-------| 72 | 86 |

 |Red pine------------| 72 | 129 |

 |White oak-----------| 70 | 72 |

 | | | |

63C: | | | |

 Chelsea-----------------|Eastern white pine--| 83 | 186 |Eastern white pine,

 |Jack pine-----------| 70 | 100 | jack pine, red

 |Northern red oak----| 70 | 72 | pine

 |Quaking aspen-------| 72 | 86 |

 |Red pine------------| 72 | 129 |

 |White oak-----------| 70 | 72 |

 | | | |

63D: | | | |

 Chelsea-----------------|Eastern white pine--| 83 | 186 |Eastern white pine,

 |Jack pine-----------| 70 | 100 | jack pine, red

 |Northern red oak----| 70 | 72 | pine

 |Quaking aspen-------| 72 | 86 |

 |Red pine------------| 72 | 129 |

 |White oak-----------| 70 | 72 |

 | | | |

171B: | | | |

 Bassett-----------------|Northern red oak----| 55 | 43 |Black walnut,

 |White oak-----------| 55 | 43 | eastern white

 | | | | pine, red pine,

 | | | | sugar maple

 | | | |

221: | | | |

 Klossner----------------|Black ash-----------| --- | --- |Eastern arborvitae,

 |Eastern arborvitae--| --- | --- | tamarack

 |Quaking aspen-------| --- | --- |

 |Red maple-----------| 55 | 29 |

 |Silver maple--------| 80 | 29 |

 |Tamarack------------| --- | --- |

 |White ash-----------| --- | --- |

 | | | |

290: | | | |

 Dells-------------------|Northern red oak----| --- | --- |Silver maple, white

 |Silver maple--------| 80 | 29 | ash, white spruce

 |White ash-----------| --- | --- |

 | | | |

412C: | | | |

 Emeline-----------------|American elm--------| 50 | --- |Bur oak, eastern

 |Black oak-----------| 50 | 29 | redcedar, eastern

 |Bur oak-------------| 50 | 29 | white pine, jack

 |Eastern redcedar----| 50 | 57 | pine, red pine

 |Northern red oak----| 50 | 29 |

 |Shagbark hickory----| 50 | --- |

 | | | |
Black Hawk County, Iowa 203

Table 10.--Forestland Productivity--Continued

_________________________________________________________________________________

 | Potential productivity | ___________________________________

 Map symbol and | | | |

 soil name | Common trees |Site | Volume | Trees to manage

 | |index|of wood |

 | | | fiber | _________________________________________________________________________________

 | | |cu ft/ac|

 | | | |

471: | | | |

 Oran--------------------|Northern red oak----| 55 | 43 |Black walnut,

 |White oak-----------| 55 | 43 | eastern white

 | | | | pine, red pine,

 | | | | sugar maple

 | | | |

626: | | | |

 Hayfield----------------|Eastern white pine--| 60 | 114 |Black walnut,

 |Northern red oak----| 65 | 57 | eastern white

 |White oak-----------| 65 | 57 | pine, northern red

 | | | | oak, red pine,

 | | | | silver maple,

 | | | | white ash, white

 | | | | oak, white spruce

 | | | |

761: | | | |

 Franklin----------------|Northern red oak----| 65 | 57 |Black walnut,

 |White oak-----------| 65 | 57 | eastern white

 | | | | pine, northern red

 | | | | oak, sugar maple,

 | | | | white oak

 | | | |

771B: | | | |

 Waubeek-----------------|Northern red oak----| 65 | 57 |Black walnut,

 |White oak-----------| 65 | 57 | eastern white

 | | | | pine, red pine,

 | | | | sugar maple

 | | | |

775B: | | | |

 Billett-----------------|Black oak-----------| --- | --- |Norway spruce,

 |Northern pin oak----| --- | --- | eastern white

 |Northern red oak----| 60 | 57 | pine, red pine,

 |Shagbark hickory----| --- | --- | white spruce

 |White oak-----------| --- | --- |

 | | | |

776C: | | | |

 Lilah-------------------|Northern red oak----| 55 | 43 |Eastern redcedar,

 | | | | eastern white

 | | | | pine, white oak

 | | | |

777: | | | |

 Wapsie------------------|Northern red oak----| 55 | 43 |Black walnut,

 |White oak-----------| 55 | 43 | eastern white

 | | | | pine, red pine,

 | | | | sugar maple

 | | | |

781B: | | | |

 Lourdes-----------------|Northern red oak----| 55 | 43 |Black walnut,

 |White oak-----------| 55 | 43 | eastern white

 | | | | pine, red pine,

 | | | | sugar maple

 | | | |

781C2: | | | |

 Lourdes-----------------|Northern red oak----| 55 | 43 |Black walnut,

 |White oak-----------| 55 | 43 | eastern white

 | | | | pine, red pine,

 | | | | sugar maple

 | | | |
204 Soil Survey of

Table 10.--Forestland Productivity--Continued

_________________________________________________________________________________

 | Potential productivity | ___________________________________

 Map symbol and | | | |

 soil name | Common trees |Site | Volume | Trees to manage

 | |index|of wood |

 | | | fiber | _________________________________________________________________________________

 | | |cu ft/ac|

 | | | |

782B: | | | |

 Donnan------------------|Northern red oak----| 55 | 43 |Black walnut,

 |White oak-----------| 55 | 43 | eastern white

 | | | | pine, red pine,

 | | | | silver maple

 | | | |

1285G: | | | |

 Burkhardt---------------|Black oak-----------| --- | --- |Norway spruce,

 |Jack pine-----------| --- | --- | eastern white

 |Northern pin oak----| 52 | 29 | pine, jack pine,

 | | | | red pine

 | | | |

 Bassett. | | | |

 | | | |

 Chelsea. | | | |

 | | | |

1586: | | | |

 Sigglekov---------------|White oak-----------| 55 | 43 |Eastern white pine

 | | | |

 Fluvaquents. | | | |

 | | | |

 Aquents. | | | |

 | | | |

4041D: | | | |

 Sparta------------------|Jack pine-----------| 57 | 86 |Eastern white pine,

 |Northern red oak----| 47 | 29 | jack pine, red

 |Red pine------------| --- | --- | pine

 | | | |

 Urban land. | | | |

 | | | |

4063B: | | | |

 Chelsea-----------------|Eastern white pine--| 83 | 186 |Eastern white pine,

 |Jack pine-----------| 70 | 100 | jack pine, red

 |Northern red oak----| 70 | 72 | pine

 |Quaking aspen-------| 72 | 86 |

 |Red pine------------| 72 | 129 |

 |White oak-----------| 70 | 72 |

 | | | |

 Urban land. | | | |

 | | | |

4063C: | | | |

 Chelsea-----------------|Eastern white pine--| 83 | 186 |Eastern white pine,

 |Jack pine-----------| 70 | 100 | jack pine, red

 |Northern red oak----| 70 | 72 | pine

 |Quaking aspen-------| 72 | 86 |

 |Red pine------------| 72 | 129 |

 |White oak-----------| 70 | 72 |

 | | | |

 Urban land. | | | |

 | | | |

4063D: | | | |

 Chelsea-----------------|Eastern white pine--| 83 | 186 |Eastern white pine,

 |Jack pine-----------| 70 | 100 | jack pine, red

 |Northern red oak----| 70 | 72 | pine

 |Quaking aspen-------| 72 | 86 |

 |Red pine------------| 72 | 129 |

 |White oak-----------| 70 | 72 |

 | | | |

 Urban land. | | | |

 | | | |
Black Hawk County, Iowa 205

Table 10.--Forestland Productivity--Continued

_________________________________________________________________________________

 | Potential productivity | ___________________________________

 Map symbol and | | | |

 soil name | Common trees |Site | Volume | Trees to manage

 | |index|of wood |

 | | | fiber | _________________________________________________________________________________

 | | |cu ft/ac|

 | | | |

4171B: | | | |

 Bassett-----------------|Northern red oak----| 55 | 43 |Black walnut,

 |White oak-----------| 55 | 43 | eastern white

 | | | | pine, red pine,

 | | | | sugar maple

 | | | |

 Urban land. | | | |

 | | | |

4171D: | | | |

 Bassett-----------------|Northern red oak----| 55 | 43 |Black walnut,

 |White oak-----------| 55 | 43 | eastern white

 | | | | pine, red pine,

 | | | | sugar maple

 | | | |

 Urban land. | | | |

 | | | |

4761: | | | |

 Franklin----------------|Northern red oak----| 65 | 57 |Black walnut,

 |White oak-----------| 65 | 57 | eastern white

 | | | | pine, northern red

 | | | | oak, sugar maple,

 | | | | white oak

 | | | |

 Urban land. | | | |

 | | | |

4771B: | | | |

 Waubeek-----------------|Northern red oak----| 65 | 57 |Black walnut,

 |White oak-----------| 65 | 57 | eastern white

 | | | | pine, red pine,

 | | | | sugar maple

 | | | |

 Urban land. | | | |

 | | | |

4771D: | | | |

 Waubeek-----------------|Northern red oak----| 65 | 57 |Black walnut,

 |White oak-----------| 65 | 57 | eastern white

 | | | | pine, red pine,

 | | | | sugar maple

 | | | |

 Urban land. | | | |

 | | | | _________________________________________________________________________________
206 Soil Survey of

Table 11a.--Recreational Development

(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. "Not rated" indicates that data are not

 available or that no rating is applicable. See text for further explanation of ratings in

 this table)

___________________________________________________________________________________________________

 | | |

 Map symbol | Camp areas | Picnic areas | Playgrounds

 and soil name | | |

 | | | _____________________________________________________________________________

 | Rating class and |Value| Rating class and |Value| Rating class and |Value

 | limiting features | | limiting features | | limiting features | ___________________________________________________________________________________________________

 | | | | | |

7: | | | | | |

 Wiota---------------|Not limited | |Not limited | |Not limited |

 | | | | | |

41: | | | | | |

 Sparta--------------|Somewhat limited | |Somewhat limited | |Somewhat limited |

 | Too sandy |0.95 | Too sandy |0.95 | Too sandy |0.95

 | | | | | |

41B: | | | | | |

 Sparta--------------|Somewhat limited | |Somewhat limited | |Somewhat limited |

 | Too sandy |0.95 | Too sandy |0.95 | Too sandy |0.95

 | | | | | Slope |0.50

 | | | | | |

41C: | | | | | |

 Sparta--------------|Somewhat limited | |Somewhat limited | |Very limited |

 | Too sandy |0.95 | Too sandy |0.95 | Slope |1.00

 | | | | | Too sandy |0.95

 | | | | | |

41D: | | | | | |

 Sparta--------------|Somewhat limited | |Somewhat limited | |Very limited |

 | Too sandy |0.95 | Too sandy |0.95 | Slope |1.00

 | Slope |0.63 | Slope |0.63 | Too sandy |0.95

 | | | | | |

63B: | | | | | |

 Chelsea-------------|Somewhat limited | |Somewhat limited | |Somewhat limited |

 | Too sandy |0.95 | Too sandy |0.95 | Too sandy |0.95

 | | | | | Slope |0.50

 | | | | | |

63C: | | | | | |

 Chelsea-------------|Somewhat limited | |Somewhat limited | |Very limited |

 | Too sandy |0.95 | Too sandy |0.95 | Slope |1.00

 | | | | | Too sandy |0.95

 | | | | | |

63D: | | | | | |

 Chelsea-------------|Somewhat limited | |Somewhat limited | |Very limited |

 | Too sandy |0.95 | Too sandy |0.95 | Slope |1.00

 | Slope |0.63 | Slope |0.63 | Too sandy |0.95

 | | | | | |

83B: | | | | | |

 Kenyon--------------|Not limited | |Not limited | |Somewhat limited |

 | | | | | Slope |0.50

 | | | | | |

83C: | | | | | |

 Kenyon--------------|Not limited | |Not limited | |Very limited |

 | | | | | Slope |1.00

 | | | | | |

83C2: | | | | | |

 Kenyon, moderately | | | | | |

 eroded-------------|Not limited | |Not limited | |Very limited |

 | | | | | Slope |1.00

 | | | | | |

83D2: | | | | | |

 Kenyon, moderately | | | | | |

 eroded-------------|Somewhat limited | |Somewhat limited | |Very limited |

 | Slope |0.63 | Slope |0.63 | Slope |1.00

 | | | | | |
Black Hawk County, Iowa 207

Table 11a.--Recreational Development--Continued

___________________________________________________________________________________________________

 | | |

 Map symbol | Camp areas | Picnic areas | Playgrounds

 and soil name | | |

 | | | _____________________________________________________________________________

 | Rating class and |Value| Rating class and |Value| Rating class and |Value

 | limiting features | | limiting features | | limiting features | ___________________________________________________________________________________________________

 | | | | | |

84: | | | | | |

 Clyde---------------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone | | saturated zone |

 | | | | | |

88: | | | | | |

 Nevin---------------|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 | | | |

 | | | | | |

133: | | | | | |

 Colo, occasionally | | | | | |

 flooded------------|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 |0.60

 | | | | | |

135: | | | | | |

 Coland, occasionally| | | | | |

 flooded------------|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 |0.60

 | | | | | |

159: | | | | | |

 Finchford-----------|Somewhat limited | |Somewhat limited | |Somewhat limited |

 | Too sandy |0.82 | Too sandy |0.82 | Too sandy |0.82

 | | | | | |

159C: | | | | | |

 Finchford-----------|Somewhat limited | |Somewhat limited | |Very limited |

 | Too sandy |0.82 | Too sandy |0.82 | Slope |1.00

 | | | | | Too sandy |0.82

 | | | | | |

171B: | | | | | |

 Bassett-------------|Somewhat limited | |Somewhat limited | |Somewhat limited |

 | Depth to |0.39 | Depth to |0.19 | Slope |0.50

 | saturated zone | | saturated zone | | Depth to |0.39

 | | | | | saturated zone |

 | | | | | |

175: | | | | | |

 Dickinson-----------|Not limited | |Not limited | |Not limited |

 | | | | | |

175B: | | | | | |

 Dickinson-----------|Not limited | |Not limited | |Somewhat limited |

 | | | | | Slope |0.50

 | | | | | |

177: | | | | | |

 Saude---------------|Not limited | |Not limited | |Not limited |

 | | | | | |

177B: | | | | | |

 Saude---------------|Not limited | |Not limited | |Somewhat limited |

 | | | | | Slope |0.50

 | | | | | |

178: | | | | | |

 Waukee--------------|Not limited | |Not limited | |Not limited |

 | | | | | |

178B: | | | | | |

 Waukee--------------|Not limited | |Not limited | |Somewhat limited |

 | | | | | Slope |0.50

 | | | | | |
208 Soil Survey of

Table 11a.--Recreational Development--Continued

___________________________________________________________________________________________________

 | | |

 Map symbol | Camp areas | Picnic areas | Playgrounds

 and soil name | | |

 | | | _____________________________________________________________________________

 | Rating class and |Value| Rating class and |Value| Rating class and |Value

 | limiting features | | limiting features | | limiting features | ___________________________________________________________________________________________________

 | | | | | |

184: | | | | | |

 Klinger-------------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone | | saturated zone |

 | | | | | |

198B: | | | | | |

 Floyd---------------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone | | saturated zone |

 | | | | | Slope |0.12

 | | | | | |

213B: | | | | | |

 Rockton, 30 to 40 | | | | | |

 inches to limestone|Not limited | |Not limited | |Somewhat limited |

 | | | | | Slope |0.50

 | | | | | Depth to bedrock |0.10

 | | | | | |

221: | | | | | |

 Klossner------------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone | | saturated zone |

 | | | | | |

284: | | | | | |

 Flagler-------------|Not limited | |Not limited | |Not limited |

 | | | | | |

284B: | | | | | |

 Flagler-------------|Not limited | |Not limited | |Somewhat limited |

 | | | | | Slope |0.50

 | | | | | |

290: | | | | | |

 Dells---------------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone | | saturated zone |

 | | | | | |

354: | | | | | |

 Aquolls, ponded-----|Not rated | |Not rated | |Not rated |

 | | | | | |

377B: | | | | | |

 Dinsdale------------|Not limited | |Not limited | |Somewhat limited |

 | | | | | Slope |0.50

 | | | | | |

377C: | | | | | |

 Dinsdale------------|Not limited | |Not limited | |Very limited |

 | | | | | Slope |1.00

 | | | | | |

377C2: | | | | | |

 Dinsdale, moderately| | | | | |

 eroded-------------|Not limited | |Not limited | |Very limited |

 | | | | | Slope |1.00

 | | | | | |

382: | | | | | |

 Maxfield------------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone | | saturated zone |

 | | | | | |

391B: | | | | | |

 Clyde---------------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone | | saturated zone |

 | | | | | |
Black Hawk County, Iowa 209

Table 11a.--Recreational Development--Continued

___________________________________________________________________________________________________

 | | |

 Map symbol | Camp areas | Picnic areas | Playgrounds

 and soil name | | |

 | | | _____________________________________________________________________________

 | Rating class and |Value| Rating class and |Value| Rating class and |Value

 | limiting features | | limiting features | | limiting features | ___________________________________________________________________________________________________

 | | | | | |

391B: | | | | | |

 Floyd---------------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone | | saturated zone |

 | | | | | Slope |0.12

 | | | | | |

395B: | | | | | |

 Marquis-------------|Somewhat limited | |Somewhat limited | |Somewhat limited |

 | Depth to |0.39 | Depth to |0.19 | Slope |0.50

 | saturated zone | | saturated zone | | Depth to |0.39

 | | | | | saturated zone |

 | | | | | |

398: | | | | | |

 Tripoli-------------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone | | saturated zone |

 | | | | | |

399: | | | | | |

 Readlyn-------------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone | | saturated zone |

 | | | | | |

408B: | | | | | |

 Olin----------------|Not limited | |Not limited | |Somewhat limited |

 | | | | | Slope |0.50

 | | | | | |

408C: | | | | | |

 Olin----------------|Not limited | |Not limited | |Very limited |

 | | | | | Slope |1.00

 | | | | | |

412C: | | | | | |

 Emeline-------------|Very limited | |Very limited | |Very limited |

 | Depth to bedrock |1.00 | Depth to bedrock |1.00 | Depth to bedrock |1.00

 | | | | | Slope |1.00

 | | | | | Content of large |0.01

 | | | | | stones |

 | | | | | |

426B: | | | | | |

 Aredale-------------|Not limited | |Not limited | |Somewhat limited |

 | | | | | Slope |0.50

 | | | | | |

426C: | | | | | |

 Aredale-------------|Not limited | |Not limited | |Very limited |

 | | | | | Slope |1.00

 | | | | | |

426C2: | | | | | |

 Aredale, moderately | | | | | |

 eroded-------------|Not limited | |Not limited | |Very limited |

 | | | | | Slope |1.00

 | | | | | |

468B: | | | | | |

 Dunkerton-----------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone | | saturated zone |

 | Restricted |0.15 | Restricted |0.15 | Slope |0.50

 | permeability | | permeability | | Restricted |0.15

 | | | | | permeability |

 | | | | | |
210 Soil Survey of

Table 11a.--Recreational Development--Continued

___________________________________________________________________________________________________

 | | |

 Map symbol | Camp areas | Picnic areas | Playgrounds

 and soil name | | |

 | | | _____________________________________________________________________________

 | Rating class and |Value| Rating class and |Value| Rating class and |Value

 | limiting features | | limiting features | | limiting features | ___________________________________________________________________________________________________

 | | | | | |

468C: | | | | | |

 Dunkerton-----------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone | | saturated zone |

 | Restricted |0.15 | Restricted |0.15 | Slope |1.00

 | permeability | | permeability | | Restricted |0.15

 | | | | | permeability |

 | | | | | |

471: | | | | | |

 Oran----------------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone | | saturated zone |

 | | | | | |

485: | | | | | |

 Spillville, | | | | | |

 occasionally | | | | | |

 flooded------------|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 |0.60

 | | | | | |

585: | | | | | |

 Spillville, | | | | | |

 occasionally | | | | | |

 flooded------------|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 |0.60

 | | | | | |

 Coland, occasionally| | | | | |

 flooded------------|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 |0.60

 | | | | | |

626: | | | | | |

 Hayfield, 24 to 40 | | | | | |

 inches to sand and | | | | | |

 gravel-------------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone | | saturated zone |

 | | | | | |

761: | | | | | |

 Franklin------------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone | | saturated zone |

 | | | | | |

771B: | | | | | |

 Waubeek-------------|Not limited | |Not limited | |Somewhat limited |

 | | | | | Slope |0.50

 | | | | | |

775B: | | | | | |

 Billett-------------|Not limited | |Not limited | |Somewhat limited |

 | | | | | Slope |0.50

 | | | | | |

776C: | | | | | |

 Lilah---------------|Not limited | |Not limited | |Very limited |

 | | | | | Slope |1.00

 | | | | | |
Black Hawk County, Iowa 211

Table 11a.--Recreational Development--Continued

___________________________________________________________________________________________________

 | | |

 Map symbol | Camp areas | Picnic areas | Playgrounds

 and soil name | | |

 | | | _____________________________________________________________________________

 | Rating class and |Value| Rating class and |Value| Rating class and |Value

 | limiting features | | limiting features | | limiting features | ___________________________________________________________________________________________________

 | | | | | |

777: | | | | | |

 Wapsie--------------|Not limited | |Not limited | |Not limited |

 | | | | | |

781B: | | | | | |

 Lourdes-------------|Somewhat limited | |Somewhat limited | |Somewhat limited |

 | Restricted |0.15 | Restricted |0.15 | Slope |0.50

 | permeability | | permeability | | Restricted |0.15

 | | | | | permeability |

 | | | | | |

781C2: | | | | | |

 Lourdes, moderately | | | | | |

 eroded-------------|Somewhat limited | |Somewhat limited | |Very limited |

 | Restricted |0.15 | Restricted |0.15 | Slope |1.00

 | permeability | | permeability | | Restricted |0.15

 | | | | | permeability |

 | | | | | |

782B: | | | | | |

 Donnan--------------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone | | saturated zone |

 | Restricted |1.00 | Restricted |1.00 | Restricted |1.00

 | permeability | | permeability | | permeability |

 | | | | | Slope |0.50

 | | | | | |

798: | | | | | |

 Protivin------------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone | | saturated zone |

 | Restricted |0.15 | Restricted |0.15 | Restricted |0.15

 | permeability | | permeability | | permeability |

 | | | | | |

809B: | | | | | |

 Bertram-------------|Not limited | |Not limited | |Somewhat limited |

 | | | | | Slope |0.50

 | | | | | Depth to bedrock |0.46

 | | | | | |

877B: | | | | | |

 Dinsmore------------|Not limited | |Not limited | |Somewhat limited |

 | | | | | Slope |0.50

 | | | | | |

884: | | | | | |

 Klingmore-----------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone | | saturated zone |

 | | | | | |

911B: | | | | | |

 Colo----------------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone | | saturated zone |

 | | | | | |

 Ely-----------------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone | | saturated zone |

 | | | | | Slope |0.50

 | | | | | |
212 Soil Survey of

Table 11a.--Recreational Development--Continued

___________________________________________________________________________________________________

 | | |

 Map symbol | Camp areas | Picnic areas | Playgrounds

 and soil name | | |

 | | | _____________________________________________________________________________

 | Rating class and |Value| Rating class and |Value| Rating class and |Value

 | limiting features | | limiting features | | limiting features | ___________________________________________________________________________________________________

 | | | | | |

933: | | | | | |

 Sawmill, | | | | | |

 occasionally | | | | | |

 flooded------------|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 |0.60

 | | | | | |

982: | | | | | |

 Maxmore-------------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone | | saturated zone |

 | | | | | |

1152: | | | | | |

 Marshan, 24 to 40 | | | | | |

 inches to sand and | | | | | |

 gravel-------------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone | | saturated zone |

 | | | | | |

1226: | | | | | |

 Lawler, 24 to 40 | | | | | |

 inches to sand and | | | | | |

 gravel-------------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone | | saturated zone |

 | | | | | |

1285G: | | | | | |

 Burkhardt-----------|Very limited | |Very limited | |Very limited |

 | Slope |1.00 | Slope |1.00 | Slope |1.00

 | | | | | Gravel content |0.08

 | | | | | |

 Bassett-------------|Very limited | |Very limited | |Very limited |

 | Slope |1.00 | Slope |1.00 | Slope |1.00

 | Depth to |0.39 | Depth to |0.19 | Depth to |0.39

 | saturated zone | | saturated zone | | saturated zone |

 | | | | | |

 Chelsea-------------|Very limited | |Very limited | |Very limited |

 | Slope |1.00 | Slope |1.00 | Slope |1.00

 | Too sandy |0.95 | Too sandy |0.95 | Too sandy |0.95

 | | | | | |

1585: | | | | | |

 Spillville, | | | | | |

 frequently flooded |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

 | | | | | |

 Coland, frequently | | | | | |

 flooded------------|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

 | | | | | |

 Aquolls, ponded-----|Not rated | |Not rated | |Not rated |

 | | | | | |
Black Hawk County, Iowa 213

Table 11a.--Recreational Development--Continued

___________________________________________________________________________________________________

 | | |

 Map symbol | Camp areas | Picnic areas | Playgrounds

 and soil name | | |

 | | | _____________________________________________________________________________

 | Rating class and |Value| Rating class and |Value| Rating class and |Value

 | limiting features | | limiting features | | limiting features | ___________________________________________________________________________________________________

 | | | | | |

1586: | | | | | |

 Sigglekov, | | | | | |

 frequently flooded |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

 | | | | | |

 Fluvaquents, | | | | | |

 frequently flooded |Not rated | |Not rated | |Not rated |

 | | | | | |

 Aquents, ponded-----|Not rated | |Not rated | |Not rated |

 | | | | | |

4000: | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4007: | | | | | |

 Wiota---------------|Not limited | |Not limited | |Not limited |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4041: | | | | | |

 Sparta--------------|Somewhat limited | |Somewhat limited | |Somewhat limited |

 | Too sandy |0.95 | Too sandy |0.95 | Too sandy |0.95

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4041B: | | | | | |

 Sparta--------------|Somewhat limited | |Somewhat limited | |Somewhat limited |

 | Too sandy |0.95 | Too sandy |0.95 | Too sandy |0.95

 | | | | | Slope |0.50

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4041C: | | | | | |

 Sparta--------------|Somewhat limited | |Somewhat limited | |Very limited |

 | Too sandy |0.95 | Too sandy |0.95 | Slope |1.00

 | | | | | Too sandy |0.95

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4041D: | | | | | |

 Sparta--------------|Somewhat limited | |Somewhat limited | |Very limited |

 | Too sandy |0.95 | Too sandy |0.95 | Slope |1.00

 | Slope |0.63 | Slope |0.63 | Too sandy |0.95

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4063B: | | | | | |

 Chelsea-------------|Somewhat limited | |Somewhat limited | |Somewhat limited |

 | Too sandy |0.95 | Too sandy |0.95 | Too sandy |0.95

 | | | | | Slope |0.50

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4063C: | | | | | |

 Chelsea-------------|Somewhat limited | |Somewhat limited | |Very limited |

 | Too sandy |0.95 | Too sandy |0.95 | Slope |1.00

 | | | | | Too sandy |0.95

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |
214 Soil Survey of

Table 11a.--Recreational Development--Continued

___________________________________________________________________________________________________

 | | |

 Map symbol | Camp areas | Picnic areas | Playgrounds

 and soil name | | |

 | | | _____________________________________________________________________________

 | Rating class and |Value| Rating class and |Value| Rating class and |Value

 | limiting features | | limiting features | | limiting features | ___________________________________________________________________________________________________

 | | | | | |

4063D: | | | | | |

 Chelsea-------------|Somewhat limited | |Somewhat limited | |Very limited |

 | Too sandy |0.95 | Too sandy |0.95 | Slope |1.00

 | Slope |0.63 | Slope |0.63 | Too sandy |0.95

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4083B: | | | | | |

 Kenyon--------------|Not limited | |Not limited | |Somewhat limited |

 | | | | | Slope |0.50

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4083C: | | | | | |

 Kenyon--------------|Not limited | |Not limited | |Very limited |

 | | | | | Slope |1.00

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4083D: | | | | | |

 Kenyon--------------|Somewhat limited | |Somewhat limited | |Very limited |

 | Slope |0.63 | Slope |0.63 | Slope |1.00

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4084: | | | | | |

 Clyde---------------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone | | saturated zone |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4088: | | | | | |

 Nevin---------------|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 | | | |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4133: | | | | | |

 Colo, occasionally | | | | | |

 flooded------------|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 |0.60

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4135: | | | | | |

 Coland, occasionally| | | | | |

 flooded------------|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 |0.60

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |
Black Hawk County, Iowa 215

Table 11a.--Recreational Development--Continued

___________________________________________________________________________________________________

 | | |

 Map symbol | Camp areas | Picnic areas | Playgrounds

 and soil name | | |

 | | | _____________________________________________________________________________

 | Rating class and |Value| Rating class and |Value| Rating class and |Value

 | limiting features | | limiting features | | limiting features | ___________________________________________________________________________________________________

 | | | | | |

4152: | | | | | |

 Marshan, 24 to 40 | | | | | |

 inches to sand and | | | | | |

 gravel-------------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone | | saturated zone |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4159: | | | | | |

 Finchford-----------|Somewhat limited | |Somewhat limited | |Somewhat limited |

 | Too sandy |0.82 | Too sandy |0.82 | Too sandy |0.82

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4159C: | | | | | |

 Finchford-----------|Somewhat limited | |Somewhat limited | |Very limited |

 | Too sandy |0.82 | Too sandy |0.82 | Slope |1.00

 | | | | | Too sandy |0.82

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4171B: | | | | | |

 Bassett-------------|Somewhat limited | |Somewhat limited | |Somewhat limited |

 | Depth to |0.39 | Depth to |0.19 | Slope |0.50

 | saturated zone | | saturated zone | | Depth to |0.39

 | | | | | saturated zone |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4171D: | | | | | |

 Bassett-------------|Somewhat limited | |Somewhat limited | |Very limited |

 | Slope |0.63 | Slope |0.63 | Slope |1.00

 | Depth to |0.39 | Depth to |0.19 | Depth to |0.39

 | saturated zone | | saturated zone | | saturated zone |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4175: | | | | | |

 Dickinson-----------|Not limited | |Not limited | |Not limited |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4175B: | | | | | |

 Dickinson-----------|Not limited | |Not limited | |Somewhat limited |

 | | | | | Slope |0.50

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4177: | | | | | |

 Saude---------------|Not limited | |Not limited | |Not limited |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4177B: | | | | | |

 Saude---------------|Not limited | |Not limited | |Somewhat limited |

 | | | | | Slope |0.50

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |
216 Soil Survey of

Table 11a.--Recreational Development--Continued

___________________________________________________________________________________________________

 | | |

 Map symbol | Camp areas | Picnic areas | Playgrounds

 and soil name | | |

 | | | _____________________________________________________________________________

 | Rating class and |Value| Rating class and |Value| Rating class and |Value

 | limiting features | | limiting features | | limiting features | ___________________________________________________________________________________________________

 | | | | | |

4178: | | | | | |

 Waukee--------------|Not limited | |Not limited | |Not limited |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4184: | | | | | |

 Klinger-------------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone | | saturated zone |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4198B: | | | | | |

 Floyd---------------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone | | saturated zone |

 | | | | | Slope |0.12

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4226: | | | | | |

 Lawler, 24 to 40 | | | | | |

 inches to sand and | | | | | |

 gravel-------------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone | | saturated zone |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4284: | | | | | |

 Flagler-------------|Not limited | |Not limited | |Not limited |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4284B: | | | | | |

 Flagler-------------|Not limited | |Not limited | |Somewhat limited |

 | | | | | Slope |0.50

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4377B: | | | | | |

 Dinsdale------------|Not limited | |Not limited | |Somewhat limited |

 | | | | | Slope |0.50

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4377C: | | | | | |

 Dinsdale------------|Not limited | |Not limited | |Very limited |

 | | | | | Slope |1.00

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4382: | | | | | |

 Maxfield------------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone | | saturated zone |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |
Black Hawk County, Iowa 217

Table 11a.--Recreational Development--Continued

___________________________________________________________________________________________________

 | | |

 Map symbol | Camp areas | Picnic areas | Playgrounds

 and soil name | | |

 | | | _____________________________________________________________________________

 | Rating class and |Value| Rating class and |Value| Rating class and |Value

 | limiting features | | limiting features | | limiting features | ___________________________________________________________________________________________________

 | | | | | |

4391B: | | | | | |

 Clyde---------------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone | | saturated zone |

 | | | | | |

 Floyd---------------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone | | saturated zone |

 | | | | | Slope |0.12

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4398: | | | | | |

 Tripoli-------------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone | | saturated zone |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4399: | | | | | |

 Readlyn-------------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone | | saturated zone |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4408B: | | | | | |

 Olin----------------|Not limited | |Not limited | |Somewhat limited |

 | | | | | Slope |0.50

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4408C: | | | | | |

 Olin----------------|Not limited | |Not limited | |Very limited |

 | | | | | Slope |1.00

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4426B: | | | | | |

 Aredale-------------|Not limited | |Not limited | |Somewhat limited |

 | | | | | Slope |0.50

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4426C: | | | | | |

 Aredale-------------|Not limited | |Not limited | |Very limited |

 | | | | | Slope |1.00

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4585: | | | | | |

 Spillville, | | | | | |

 occasionally | | | | | |

 flooded------------|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 |0.60

 | | | | | |
218 Soil Survey of

Table 11a.--Recreational Development--Continued

___________________________________________________________________________________________________

 | | |

 Map symbol | Camp areas | Picnic areas | Playgrounds

 and soil name | | |

 | | | _____________________________________________________________________________

 | Rating class and |Value| Rating class and |Value| Rating class and |Value

 | limiting features | | limiting features | | limiting features | ___________________________________________________________________________________________________

 | | | | | |

4585: | | | | | |

 Coland, occasionally| | | | | |

 flooded------------|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 |0.60

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4761: | | | | | |

 Franklin------------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone | | saturated zone |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4771B: | | | | | |

 Waubeek-------------|Not limited | |Not limited | |Somewhat limited |

 | | | | | Slope |0.50

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4771D: | | | | | |

 Waubeek-------------|Somewhat limited | |Somewhat limited | |Very limited |

 | Slope |0.04 | Slope |0.04 | Slope |1.00

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4798: | | | | | |

 Protivin------------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone | | saturated zone |

 | Restricted |0.15 | Restricted |0.15 | Restricted |0.15

 | permeability | | permeability | | permeability |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4911B: | | | | | |

 Colo----------------|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

 | | | | | |

 Ely-----------------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone | | saturated zone |

 | | | | | Slope |0.50

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4933: | | | | | |

 Sawmill, | | | | | |

 occasionally | | | | | |

 flooded------------|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 |0.60

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |
Black Hawk County, Iowa 219

Table 11a.--Recreational Development--Continued

___________________________________________________________________________________________________

 | | |

 Map symbol | Camp areas | Picnic areas | Playgrounds

 and soil name | | |

 | | | _____________________________________________________________________________

 | Rating class and |Value| Rating class and |Value| Rating class and |Value

 | limiting features | | limiting features | | limiting features | ___________________________________________________________________________________________________

 | | | | | |

4946: | | | | | |

 Orthents, loamy-----|Not rated | |Not rated | |Not rated |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

5010: | | | | | |

 Pits, sand and | | | | | |

 gravel-------------|Not rated | |Not rated | |Not rated |

 | | | | | |

5030: | | | | | |

 Pits, limestone | | | | | |

 quarries-----------|Not rated | |Not rated | |Not rated |

 | | | | | |

5040: | | | | | |

 Orthents, loamy-----|Not rated | |Not rated | |Not rated |

 | | | | | |

5053: | | | | | |

 Psammaquents, | | | | | |

 frequently flooded |Not rated | |Not rated | |Not rated |

 | | | | | |

5080: | | | | | |

 Orthents, sanitary | | | | | |

 landfill-----------|Not rated | |Not rated | |Not rated |

 | | | | | |

AW: | | | | | |

 Animal waste--------|Not rated | |Not rated | |Not rated |

 | | | | | |

SL: | | | | | |

 Sewage lagoon-------|Not rated | |Not rated | |Not rated |

 | | | | | |

W: | | | | | |

 Water---------------|Not rated | |Not rated | |Not rated |

 | | | | | | ___________________________________________________________________________________________________
220 Soil Survey of

Table 11b.--Recreational Development

(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. "Not rated" indicates that data are not

 available or that no rating is applicable. See text for further explanation of ratings in

 this table)

___________________________________________________________________________________________________

 | | |

 Map symbol | Paths and trails | Off-road | Golf fairways

 and soil name | | motorcycle trails |

 | | | _____________________________________________________________________________

 | Rating class and |Value| Rating class and |Value| Rating class and |Value

 | limiting features | | limiting features | | limiting features | ___________________________________________________________________________________________________

 | | | | | |

7: | | | | | |

 Wiota---------------|Not limited | |Not limited | |Not limited |

 | | | | | |

41: | | | | | |

 Sparta--------------|Somewhat limited | |Somewhat limited | |Somewhat limited |

 | Too sandy |0.95 | Too sandy |0.95 | Droughty |0.12

 | | | | | |

41B: | | | | | |

 Sparta--------------|Somewhat limited | |Somewhat limited | |Somewhat limited |

 | Too sandy |0.95 | Too sandy |0.95 | Droughty |0.12

 | | | | | |

41C: | | | | | |

 Sparta--------------|Somewhat limited | |Somewhat limited | |Somewhat limited |

 | Too sandy |0.95 | Too sandy |0.95 | Droughty |0.15

 | | | | | |

41D: | | | | | |

 Sparta--------------|Somewhat limited | |Somewhat limited | |Somewhat limited |

 | Too sandy |0.95 | Too sandy |0.95 | Slope |0.63

 | | | | | Droughty |0.17

 | | | | | |

63B: | | | | | |

 Chelsea-------------|Somewhat limited | |Somewhat limited | |Somewhat limited |

 | Too sandy |0.95 | Too sandy |0.95 | Droughty |0.28

 | | | | | |

63C: | | | | | |

 Chelsea-------------|Somewhat limited | |Somewhat limited | |Somewhat limited |

 | Too sandy |0.95 | Too sandy |0.95 | Droughty |0.28

 | | | | | |

63D: | | | | | |

 Chelsea-------------|Somewhat limited | |Somewhat limited | |Somewhat limited |

 | Too sandy |0.95 | Too sandy |0.95 | Slope |0.63

 | | | | | Droughty |0.28

 | | | | | |

83B: | | | | | |

 Kenyon--------------|Not limited | |Not limited | |Not limited |

 | | | | | |

83C: | | | | | |

 Kenyon--------------|Not limited | |Not limited | |Not limited |

 | | | | | |

83C2: | | | | | |

 Kenyon, moderately | | | | | |

 eroded-------------|Not limited | |Not limited | |Not limited |

 | | | | | |

83D2: | | | | | |

 Kenyon, moderately | | | | | |

 eroded-------------|Somewhat limited | |Somewhat limited | |Somewhat limited |

 | Water erosion |0.27 | Water erosion |0.27 | Slope |0.63

 | | | | | |

84: | | | | | |

 Clyde---------------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone | | saturated zone |

 | | | | | |
Black Hawk County, Iowa 221

Table 11b.--Recreational Development--Continued

___________________________________________________________________________________________________

 | | |

 Map symbol | Paths and trails | Off-road | Golf fairways

 and soil name | | motorcycle trails |

 | | | _____________________________________________________________________________

 | Rating class and |Value| Rating class and |Value| Rating class and |Value

 | limiting features | | limiting features | | limiting features | ___________________________________________________________________________________________________

 | | | | | |

88: | | | | | |

 Nevin---------------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone | | saturated zone |

 | | | | | |

133: | | | | | |

 Colo, occasionally | | | | | |

 flooded------------|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 |0.60

 | | | | | |

135: | | | | | |

 Coland, occasionally| | | | | |

 flooded------------|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 |0.60

 | | | | | |

159: | | | | | |

 Finchford-----------|Somewhat limited | |Somewhat limited | |Somewhat limited |

 | Too sandy |0.82 | Too sandy |0.82 | Droughty |0.60

 | | | | | |

159C: | | | | | |

 Finchford-----------|Somewhat limited | |Somewhat limited | |Somewhat limited |

 | Too sandy |0.82 | Too sandy |0.82 | Droughty |0.80

 | | | | | |

171B: | | | | | |

 Bassett-------------|Not limited | |Not limited | |Somewhat limited |

 | | | | | Depth to |0.19

 | | | | | saturated zone |

 | | | | | |

175: | | | | | |

 Dickinson-----------|Not limited | |Not limited | |Not limited |

 | | | | | |

175B: | | | | | |

 Dickinson-----------|Not limited | |Not limited | |Not limited |

 | | | | | |

177: | | | | | |

 Saude---------------|Not limited | |Not limited | |Not limited |

 | | | | | |

177B: | | | | | |

 Saude---------------|Not limited | |Not limited | |Not limited |

 | | | | | |

178: | | | | | |

 Waukee--------------|Not limited | |Not limited | |Not limited |

 | | | | | |

178B: | | | | | |

 Waukee--------------|Not limited | |Not limited | |Not limited |

 | | | | | |

184: | | | | | |

 Klinger-------------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone | | saturated zone |

 | | | | | |

198B: | | | | | |

 Floyd---------------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone | | saturated zone |

 | | | | | |
222 Soil Survey of

Table 11b.--Recreational Development--Continued

___________________________________________________________________________________________________

 | | |

 Map symbol | Paths and trails | Off-road | Golf fairways

 and soil name | | motorcycle trails |

 | | | _____________________________________________________________________________

 | Rating class and |Value| Rating class and |Value| Rating class and |Value

 | limiting features | | limiting features | | limiting features | ___________________________________________________________________________________________________

 | | | | | |

213B: | | | | | |

 Rockton, 30 to 40 | | | | | |

 inches to limestone|Not limited | |Not limited | |Somewhat limited |

 | | | | | Depth to bedrock |0.10

 | | | | | |

221: | | | | | |

 Klossner------------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone | | saturated zone |

 | | | | | |

284: | | | | | |

 Flagler-------------|Not limited | |Not limited | |Not limited |

 | | | | | |

284B: | | | | | |

 Flagler-------------|Not limited | |Not limited | |Not limited |

 | | | | | |

290: | | | | | |

 Dells---------------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone | | saturated zone |

 | | | | | |

354: | | | | | |

 Aquolls, ponded-----|Not rated | |Not rated | |Not rated |

 | | | | | |

377B: | | | | | |

 Dinsdale------------|Not limited | |Not limited | |Not limited |

 | | | | | |

377C: | | | | | |

 Dinsdale------------|Not limited | |Not limited | |Not limited |

 | | | | | |

377C2: | | | | | |

 Dinsdale, moderately| | | | | |

 eroded-------------|Not limited | |Not limited | |Not limited |

 | | | | | |

382: | | | | | |

 Maxfield------------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone | | saturated zone |

 | | | | | |

391B: | | | | | |

 Clyde---------------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone | | saturated zone |

 | | | | | |

 Floyd---------------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone | | saturated zone |

 | | | | | |

395B: | | | | | |

 Marquis-------------|Not limited | |Not limited | |Somewhat limited |

 | | | | | Depth to |0.19

 | | | | | saturated zone |

 | | | | | |

398: | | | | | |

 Tripoli-------------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone | | saturated zone |

 | | | | | |
Black Hawk County, Iowa 223

Table 11b.--Recreational Development--Continued

___________________________________________________________________________________________________

 | | |

 Map symbol | Paths and trails | Off-road | Golf fairways

 and soil name | | motorcycle trails |

 | | | _____________________________________________________________________________

 | Rating class and |Value| Rating class and |Value| Rating class and |Value

 | limiting features | | limiting features | | limiting features | ___________________________________________________________________________________________________

 | | | | | |

399: | | | | | |

 Readlyn-------------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone | | saturated zone |

 | | | | | |

408B: | | | | | |

 Olin----------------|Not limited | |Not limited | |Not limited |

 | | | | | |

408C: | | | | | |

 Olin----------------|Not limited | |Not limited | |Not limited |

 | | | | | |

412C: | | | | | |

 Emeline-------------|Not limited | |Not limited | |Very limited |

 | | | | | Depth to bedrock |1.00

 | | | | | Droughty |1.00

 | | | | | Content of large |0.01

 | | | | | stones |

 | | | | | |

426B: | | | | | |

 Aredale-------------|Not limited | |Not limited | |Not limited |

 | | | | | |

426C: | | | | | |

 Aredale-------------|Not limited | |Not limited | |Not limited |

 | | | | | |

426C2: | | | | | |

 Aredale, moderately | | | | | |

 eroded-------------|Not limited | |Not limited | |Not limited |

 | | | | | |

468B: | | | | | |

 Dunkerton-----------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone | | saturated zone |

 | | | | | |

468C: | | | | | |

 Dunkerton-----------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone | | saturated zone |

 | | | | | |

471: | | | | | |

 Oran----------------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone | | saturated zone |

 | | | | | |

485: | | | | | |

 Spillville, | | | | | |

 occasionally | | | | | |

 flooded------------|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 |0.60

 | | | | | |

585: | | | | | |

 Spillville, | | | | | |

 occasionally | | | | | |

 flooded------------|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 |0.60

 | | | | | |
224 Soil Survey of

Table 11b.--Recreational Development--Continued

___________________________________________________________________________________________________

 | | |

 Map symbol | Paths and trails | Off-road | Golf fairways

 and soil name | | motorcycle trails |

 | | | _____________________________________________________________________________

 | Rating class and |Value| Rating class and |Value| Rating class and |Value

 | limiting features | | limiting features | | limiting features | ___________________________________________________________________________________________________

 | | | | | |

585: | | | | | |

 Coland, occasionally| | | | | |

 flooded------------|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 |0.60

 | | | | | |

626: | | | | | |

 Hayfield, 24 to 40 | | | | | |

 inches to sand and | | | | | |

 gravel-------------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone | | saturated zone |

 | | | | | |

761: | | | | | |

 Franklin------------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone | | saturated zone |

 | | | | | |

771B: | | | | | |

 Waubeek-------------|Not limited | |Not limited | |Not limited |

 | | | | | |

775B: | | | | | |

 Billett-------------|Not limited | |Not limited | |Not limited |

 | | | | | |

776C: | | | | | |

 Lilah---------------|Not limited | |Not limited | |Somewhat limited |

 | | | | | Droughty |0.89

 | | | | | |

777: | | | | | |

 Wapsie--------------|Not limited | |Not limited | |Not limited |

 | | | | | |

781B: | | | | | |

 Lourdes-------------|Not limited | |Not limited | |Not limited |

 | | | | | |

781C2: | | | | | |

 Lourdes, moderately | | | | | |

 eroded-------------|Not limited | |Not limited | |Not limited |

 | | | | | |

782B: | | | | | |

 Donnan--------------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone | | saturated zone |

 | | | | | |

798: | | | | | |

 Protivin------------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone | | saturated zone |

 | | | | | |

809B: | | | | | |

 Bertram-------------|Not limited | |Not limited | |Somewhat limited |

 | | | | | Depth to bedrock |0.46

 | | | | | Droughty |0.02

 | | | | | |

877B: | | | | | |

 Dinsmore------------|Not limited | |Not limited | |Not limited |

 | | | | | |

884: | | | | | |

 Klingmore-----------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone | | saturated zone |

 | | | | | |
Black Hawk County, Iowa 225

Table 11b.--Recreational Development--Continued

___________________________________________________________________________________________________

 | | |

 Map symbol | Paths and trails | Off-road | Golf fairways

 and soil name | | motorcycle trails |

 | | | _____________________________________________________________________________

 | Rating class and |Value| Rating class and |Value| Rating class and |Value

 | limiting features | | limiting features | | limiting features | ___________________________________________________________________________________________________

 | | | | | |

911B: | | | | | |

 Colo----------------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone | | saturated zone |

 | | | | | |

 Ely-----------------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone | | saturated zone |

 | | | | | |

933: | | | | | |

 Sawmill, | | | | | |

 occasionally | | | | | |

 flooded------------|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 |0.60

 | | | | | |

982: | | | | | |

 Maxmore-------------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone | | saturated zone |

 | | | | | |

1152: | | | | | |

 Marshan, 24 to 40 | | | | | |

 inches to sand and | | | | | |

 gravel-------------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone | | saturated zone |

 | | | | | |

1226: | | | | | |

 Lawler, 24 to 40 | | | | | |

 inches to sand and | | | | | |

 gravel-------------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone | | saturated zone |

 | | | | | |

1285G: | | | | | |

 Burkhardt-----------|Very limited | |Somewhat limited | |Very limited |

 | Slope |1.00 | Slope |0.22 | Slope |1.00

 | Water erosion |0.01 | Water erosion |0.01 | Droughty |0.14

 | | | | | |

 Bassett-------------|Very limited | |Somewhat limited | |Very limited |

 | Slope |1.00 | Water erosion |0.53 | Slope |1.00

 | Water erosion |0.53 | Slope |0.22 | Depth to |0.19

 | | | | | saturated zone |

 | | | | | |

 Chelsea-------------|Very limited | |Somewhat limited | |Very limited |

 | Slope |1.00 | Too sandy |0.95 | Slope |1.00

 | Too sandy |0.95 | Slope |0.22 | Droughty |0.48

 | | | | | |

1585: | | | | | |

 Spillville, | | | | | |

 frequently flooded |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 |

 | | | | | |
226 Soil Survey of

Table 11b.--Recreational Development--Continued

___________________________________________________________________________________________________

 | | |

 Map symbol | Paths and trails | Off-road | Golf fairways

 and soil name | | motorcycle trails |

 | | | _____________________________________________________________________________

 | Rating class and |Value| Rating class and |Value| Rating class and |Value

 | limiting features | | limiting features | | limiting features | ___________________________________________________________________________________________________

 | | | | | |

1585: | | | | | |

 Coland, frequently | | | | | |

 flooded------------|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 |

 | | | | | |

 Aquolls, ponded-----|Not rated | |Not rated | |Not rated |

 | | | | | |

1586: | | | | | |

 Sigglekov, | | | | | |

 frequently flooded |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 |

 | | | | | Droughty |0.98

 | | | | | |

 Fluvaquents, | | | | | |

 frequently flooded |Not rated | |Not rated | |Not rated |

 | | | | | |

 Aquents, ponded-----|Not rated | |Not rated | |Not rated |

 | | | | | |

4000: | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4007: | | | | | |

 Wiota---------------|Not limited | |Not limited | |Not limited |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4041: | | | | | |

 Sparta--------------|Somewhat limited | |Somewhat limited | |Somewhat limited |

 | Too sandy |0.95 | Too sandy |0.95 | Droughty |0.12

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4041B: | | | | | |

 Sparta--------------|Somewhat limited | |Somewhat limited | |Somewhat limited |

 | Too sandy |0.95 | Too sandy |0.95 | Droughty |0.12

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4041C: | | | | | |

 Sparta--------------|Somewhat limited | |Somewhat limited | |Somewhat limited |

 | Too sandy |0.95 | Too sandy |0.95 | Droughty |0.15

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4041D: | | | | | |

 Sparta--------------|Somewhat limited | |Somewhat limited | |Somewhat limited |

 | Too sandy |0.95 | Too sandy |0.95 | Slope |0.63

 | | | | | Droughty |0.17

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4063B: | | | | | |

 Chelsea-------------|Somewhat limited | |Somewhat limited | |Somewhat limited |

 | Too sandy |0.95 | Too sandy |0.95 | Droughty |0.28

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |
Black Hawk County, Iowa 227

Table 11b.--Recreational Development--Continued

___________________________________________________________________________________________________

 | | |

 Map symbol | Paths and trails | Off-road | Golf fairways

 and soil name | | motorcycle trails |

 | | | _____________________________________________________________________________

 | Rating class and |Value| Rating class and |Value| Rating class and |Value

 | limiting features | | limiting features | | limiting features | ___________________________________________________________________________________________________

 | | | | | |

4063C: | | | | | |

 Chelsea-------------|Somewhat limited | |Somewhat limited | |Somewhat limited |

 | Too sandy |0.95 | Too sandy |0.95 | Droughty |0.28

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4063D: | | | | | |

 Chelsea-------------|Somewhat limited | |Somewhat limited | |Somewhat limited |

 | Too sandy |0.95 | Too sandy |0.95 | Slope |0.63

 | | | | | Droughty |0.28

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4083B: | | | | | |

 Kenyon--------------|Not limited | |Not limited | |Not limited |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4083C: | | | | | |

 Kenyon--------------|Not limited | |Not limited | |Not limited |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4083D: | | | | | |

 Kenyon--------------|Somewhat limited | |Somewhat limited | |Somewhat limited |

 | Water erosion |0.27 | Water erosion |0.27 | Slope |0.63

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4084: | | | | | |

 Clyde---------------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone | | saturated zone |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4088: | | | | | |

 Nevin---------------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone | | saturated zone |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4133: | | | | | |

 Colo, occasionally | | | | | |

 flooded------------|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 |0.60

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4135: | | | | | |

 Coland, occasionally| | | | | |

 flooded------------|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 |0.60

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |
228 Soil Survey of

Table 11b.--Recreational Development--Continued

___________________________________________________________________________________________________

 | | |

 Map symbol | Paths and trails | Off-road | Golf fairways

 and soil name | | motorcycle trails |

 | | | _____________________________________________________________________________

 | Rating class and |Value| Rating class and |Value| Rating class and |Value

 | limiting features | | limiting features | | limiting features | ___________________________________________________________________________________________________

 | | | | | |

4152: | | | | | |

 Marshan, 24 to 40 | | | | | |

 inches to sand and | | | | | |

 gravel-------------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone | | saturated zone |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4159: | | | | | |

 Finchford-----------|Somewhat limited | |Somewhat limited | |Somewhat limited |

 | Too sandy |0.82 | Too sandy |0.82 | Droughty |0.60

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4159C: | | | | | |

 Finchford-----------|Somewhat limited | |Somewhat limited | |Somewhat limited |

 | Too sandy |0.82 | Too sandy |0.82 | Droughty |0.80

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4171B: | | | | | |

 Bassett-------------|Not limited | |Not limited | |Somewhat limited |

 | | | | | Depth to |0.19

 | | | | | saturated zone |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4171D: | | | | | |

 Bassett-------------|Somewhat limited | |Somewhat limited | |Somewhat limited |

 | Water erosion |0.53 | Water erosion |0.53 | Slope |0.63

 | | | | | Depth to |0.19

 | | | | | saturated zone |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4175: | | | | | |

 Dickinson-----------|Not limited | |Not limited | |Not limited |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4175B: | | | | | |

 Dickinson-----------|Not limited | |Not limited | |Not limited |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4177: | | | | | |

 Saude---------------|Not limited | |Not limited | |Not limited |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4177B: | | | | | |

 Saude---------------|Not limited | |Not limited | |Not limited |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4178: | | | | | |

 Waukee--------------|Not limited | |Not limited | |Not limited |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |
Black Hawk County, Iowa 229

Table 11b.--Recreational Development--Continued

___________________________________________________________________________________________________

 | | |

 Map symbol | Paths and trails | Off-road | Golf fairways

 and soil name | | motorcycle trails |

 | | | _____________________________________________________________________________

 | Rating class and |Value| Rating class and |Value| Rating class and |Value

 | limiting features | | limiting features | | limiting features | ___________________________________________________________________________________________________

 | | | | | |

4184: | | | | | |

 Klinger-------------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone | | saturated zone |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4198B: | | | | | |

 Floyd---------------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone | | saturated zone |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4226: | | | | | |

 Lawler, 24 to 40 | | | | | |

 inches to sand and | | | | | |

 gravel-------------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone | | saturated zone |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4284: | | | | | |

 Flagler-------------|Not limited | |Not limited | |Not limited |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4284B: | | | | | |

 Flagler-------------|Not limited | |Not limited | |Not limited |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4377B: | | | | | |

 Dinsdale------------|Not limited | |Not limited | |Not limited |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4377C: | | | | | |

 Dinsdale------------|Not limited | |Not limited | |Not limited |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4382: | | | | | |

 Maxfield------------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone | | saturated zone |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4391B: | | | | | |

 Clyde---------------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone | | saturated zone |

 | | | | | |

 Floyd---------------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone | | saturated zone |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |
230 Soil Survey of

Table 11b.--Recreational Development--Continued

___________________________________________________________________________________________________

 | | |

 Map symbol | Paths and trails | Off-road | Golf fairways

 and soil name | | motorcycle trails |

 | | | _____________________________________________________________________________

 | Rating class and |Value| Rating class and |Value| Rating class and |Value

 | limiting features | | limiting features | | limiting features | ___________________________________________________________________________________________________

 | | | | | |

4398: | | | | | |

 Tripoli-------------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone | | saturated zone |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4399: | | | | | |

 Readlyn-------------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone | | saturated zone |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4408B: | | | | | |

 Olin----------------|Not limited | |Not limited | |Not limited |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4408C: | | | | | |

 Olin----------------|Not limited | |Not limited | |Not limited |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4426B: | | | | | |

 Aredale-------------|Not limited | |Not limited | |Not limited |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4426C: | | | | | |

 Aredale-------------|Not limited | |Not limited | |Not limited |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4585: | | | | | |

 Spillville, | | | | | |

 occasionally | | | | | |

 flooded------------|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 |0.60

 | | | | | |

 Coland, occasionally| | | | | |

 flooded------------|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 |0.60

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4761: | | | | | |

 Franklin------------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone | | saturated zone |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4771B: | | | | | |

 Waubeek-------------|Not limited | |Not limited | |Not limited |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |
Black Hawk County, Iowa 231

Table 11b.--Recreational Development--Continued

___________________________________________________________________________________________________

 | | |

 Map symbol | Paths and trails | Off-road | Golf fairways

 and soil name | | motorcycle trails |

 | | | _____________________________________________________________________________

 | Rating class and |Value| Rating class and |Value| Rating class and |Value

 | limiting features | | limiting features | | limiting features | ___________________________________________________________________________________________________

 | | | | | |

4771D: | | | | | |

 Waubeek-------------|Somewhat limited | |Somewhat limited | |Somewhat limited |

 | Water erosion |0.53 | Water erosion |0.53 | Slope |0.04

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4798: | | | | | |

 Protivin------------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone | | saturated zone |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4911B: | | | | | |

 Colo----------------|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 |

 | | | | | |

 Ely-----------------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone | | saturated zone |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4933: | | | | | |

 Sawmill, | | | | | |

 occasionally | | | | | |

 flooded------------|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 |0.60

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4946: | | | | | |

 Orthents, loamy-----|Not rated | |Not rated | |Not rated |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

5010: | | | | | |

 Pits, sand and | | | | | |

 gravel-------------|Not rated | |Not rated | |Not rated |

 | | | | | |

5030: | | | | | |

 Pits, limestone | | | | | |

 quarries-----------|Not rated | |Not rated | |Not rated |

 | | | | | |

5040: | | | | | |

 Orthents, loamy-----|Not rated | |Not rated | |Not rated |

 | | | | | |

5053: | | | | | |

 Psammaquents, | | | | | |

 frequently flooded |Not rated | |Not rated | |Not rated |

 | | | | | |

5080: | | | | | |

 Orthents, sanitary | | | | | |

 landfill-----------|Not rated | |Not rated | |Not rated |

 | | | | | |

AW: | | | | | |

 Animal waste--------|Not rated | |Not rated | |Not rated |

 | | | | | |
232 Soil Survey of

Table 11b.--Recreational Development--Continued

___________________________________________________________________________________________________

 | | |

 Map symbol | Paths and trails | Off-road | Golf fairways

 and soil name | | motorcycle trails |

 | | | _____________________________________________________________________________

 | Rating class and |Value| Rating class and |Value| Rating class and |Value

 | limiting features | | limiting features | | limiting features | ___________________________________________________________________________________________________

 | | | | | |

SL: | | | | | |

 Sewage lagoon-------|Not rated | |Not rated | |Not rated |

 | | | | | |

W: | | | | | |

 Water---------------|Not rated | |Not rated | |Not rated |

 | | | | | | ___________________________________________________________________________________________________
Black Hawk County, Iowa 233

Table 12.--Wildlife Habitat

(See text for definitions of terms used in this table. Absence of an entry indicates that no rating is

 applicable)

____________________________________________________________________________________________________________

 | Potential for habitat elements |Potential as habitat for-- __________________________________________________________________________________

 Map symbol | Grain | | Wild | | | | | Open- | Wood- | Wetland

 and | and |Grasses|herba- | Hard- |Conif- |Wetland|Shallow| land | land | wild-

 soil name | seed | and | ceous | wood | erous |plants | water | wild- | wild- | life

 | crops |legumes|plants | trees |plants | | areas | life | life | ____________________________________________________________________________________________________________

 | | | | | | | | | |

7: | | | | | | | | | |

 Wiota-------------------|Good |Good |Good |Good |Good |Poor |Poor |Good |Good |Poor

 | | | | | | | | | |

41: | | | | | | | | | |

 Sparta------------------|Fair |Fair |Fair |Fair |Fair |Very |Very |Fair |Fair |Very

 | | | | | | poor | poor | | | poor

 | | | | | | | | | |

41B: | | | | | | | | | |

 Sparta------------------|Fair |Fair |Fair |Fair |Fair |Very |Very |Fair |Fair |Very

 | | | | | | poor | poor | | | poor

 | | | | | | | | | |

41C: | | | | | | | | | |

 Sparta------------------|Poor |Fair |Fair |Fair |Fair |Very |Very |Fair |Fair |Very

 | | | | | | poor | poor | | | poor

 | | | | | | | | | |

41D: | | | | | | | | | |

 Sparta------------------|Poor |Fair |Fair |Fair |Fair |Very |Very |Fair |Fair |Very

 | | | | | | poor | poor | | | poor

 | | | | | | | | | |

63B: | | | | | | | | | |

 Chelsea-----------------|Poor |Fair |Fair |Poor |Poor |Very |Very |Fair |Poor |Very

 | | | | | | poor | poor | | | poor

 | | | | | | | | | |

63C: | | | | | | | | | |

 Chelsea-----------------|Poor |Fair |Fair |Poor |Poor |Very |Very |Fair |Poor |Very

 | | | | | | poor | poor | | | poor

 | | | | | | | | | |

63D: | | | | | | | | | |

 Chelsea-----------------|Very |Fair |Fair |Poor |Poor |Very |Very |Poor |Poor |Very

 | poor | | | | | poor | poor | | | poor

 | | | | | | | | | |

83B: | | | | | | | | | |

 Kenyon------------------|Good |Good |Good |Good |Good |Poor |Poor |Good |Good |Poor

 | | | | | | | | | |

83C: | | | | | | | | | |

 Kenyon------------------|Good |Good |Good |Good |Good |Poor |Poor |Good |Good |Poor

 | | | | | | | | | |

83C2: | | | | | | | | | |

 Kenyon, moderately | | | | | | | | | |

 eroded-----------------|Good |Good |Good |Good |Good |Poor |Poor |Good |Good |Poor

 | | | | | | | | | |

83D2: | | | | | | | | | |

 Kenyon, moderately | | | | | | | | | |

 eroded-----------------|Good |Good |Good |Good |Good |Poor |Poor |Good |Good |Poor

 | | | | | | | | | |

84: | | | | | | | | | |

 Clyde-------------------|Good |Good |Good |Fair |Poor |Good |Good |Good |Fair |Good

 | | | | | | | | | |

88: | | | | | | | | | |

 Nevin-------------------|Good |Good |Good |Good |Good |Fair |Fair |Good |Good |Fair

 | | | | | | | | | |

133: | | | | | | | | | |

 Colo, occasionally | | | | | | | | | |

 flooded----------------|Good |Fair |Good |Fair |Poor |Good |Good |Fair |Fair |Good

 | | | | | | | | | |

135: | | | | | | | | | |

 Coland, occasionally | | | | | | | | | |

 flooded----------------|Good |Good |Good |Fair |Fair |Good |Good |Good |Fair |Good

 | | | | | | | | | |
234 Soil Survey of

Table 12.--Wildlife Habitat--Continued

____________________________________________________________________________________________________________

 | Potential for habitat elements |Potential as habitat for-- __________________________________________________________________________________

 Map symbol | Grain | | Wild | | | | | Open- | Wood- | Wetland

 and | and |Grasses|herba- | Hard- |Conif- |Wetland|Shallow| land | land | wild-

 soil name | seed | and | ceous | wood | erous |plants | water | wild- | wild- | life

 | crops |legumes|plants | trees |plants | | areas | life | life | ____________________________________________________________________________________________________________

 | | | | | | | | | |

159: | | | | | | | | | |

 Finchford---------------|Poor |Poor |Fair |Poor |Poor |Very |Very |Poor |Poor |Very

 | | | | | | poor | poor | | | poor

 | | | | | | | | | |

159C: | | | | | | | | | |

 Finchford---------------|Poor |Poor |Fair |Poor |Poor |Very |Very |Poor |Poor |Very

 | | | | | | poor | poor | | | poor

 | | | | | | | | | |

171B: | | | | | | | | | |

 Bassett-----------------|Good |Good |Good |Good |Good |Fair |Fair |Good |Good |Fair

 | | | | | | | | | |

175: | | | | | | | | | |

 Dickinson---------------|Good |Good |Good |Good |Good |Poor |Very |Good |Good |Very

 | | | | | | | poor | | | poor

 | | | | | | | | | |

175B: | | | | | | | | | |

 Dickinson---------------|Good |Good |Good |Good |Good |Poor |Very |Good |Good |Very

 | | | | | | | poor | | | poor

 | | | | | | | | | |

177: | | | | | | | | | |

 Saude-------------------|Good |Good |Good |Good |Good |Poor |Very |Good |Good |Very

 | | | | | | | poor | | | poor

 | | | | | | | | | |

177B: | | | | | | | | | |

 Saude-------------------|Good |Good |Good |Good |Good |Poor |Very |Good |Good |Very

 | | | | | | | poor | | | poor

 | | | | | | | | | |

178: | | | | | | | | | |

 Waukee------------------|Good |Good |Good |Good |Good |Poor |Very |Good |Good |Very

 | | | | | | | poor | | | poor

 | | | | | | | | | |

178B: | | | | | | | | | |

 Waukee------------------|Good |Good |Good |Good |Good |Poor |Very |Good |Good |Very

 | | | | | | | poor | | | poor

 | | | | | | | | | |

184: | | | | | | | | | |

 Klinger-----------------|Good |Good |Good |Good |Good |Fair |Fair |Good |Good |Fair

 | | | | | | | | | |

198B: | | | | | | | | | |

 Floyd-------------------|Good |Good |Good |Good |Good |Good |Good |Good |Good |Good

 | | | | | | | | | |

213B: | | | | | | | | | |

 Rockton, 30 to 40 inches| | | | | | | | | |

 to limestone-----------|Fair |Good |Good |Good |Good |Poor |Very |Good |Good |Very

 | | | | | | | poor | | | poor

 | | | | | | | | | |

221: | | | | | | | | | |

 Klossner----------------|Poor |Poor |Poor |Poor |Poor |Good |Good |Poor |Poor |Good

 | | | | | | | | | |

284: | | | | | | | | | |

 Flagler-----------------|Fair |Fair |Fair |Fair |Fair |Very |Very |Fair |Fair |Very

 | | | | | | poor | poor | | | poor

 | | | | | | | | | |

284B: | | | | | | | | | |

 Flagler-----------------|Fair |Fair |Fair |Fair |Fair |Very |Very |Fair |Fair |Very

 | | | | | | poor | poor | | | poor

 | | | | | | | | | |

290: | | | | | | | | | |

 Dells-------------------|Good |Good |Good |Good |Good |Fair |Fair |Good |Good |Fair

 | | | | | | | | | |
Black Hawk County, Iowa 235

Table 12.--Wildlife Habitat--Continued

____________________________________________________________________________________________________________

 | Potential for habitat elements |Potential as habitat for-- __________________________________________________________________________________

 Map symbol | Grain | | Wild | | | | | Open- | Wood- | Wetland

 and | and |Grasses|herba- | Hard- |Conif- |Wetland|Shallow| land | land | wild-

 soil name | seed | and | ceous | wood | erous |plants | water | wild- | wild- | life

 | crops |legumes|plants | trees |plants | | areas | life | life | ____________________________________________________________________________________________________________

 | | | | | | | | | |

354. | | | | | | | | | |

 Aquolls, ponded | | | | | | | | | |

 | | | | | | | | | |

377B: | | | | | | | | | |

 Dinsdale----------------|Good |Good |Good |Good |Good |Poor |Poor |Good |Good |Poor

 | | | | | | | | | |

377C: | | | | | | | | | |

 Dinsdale----------------|Fair |Good |Good |Good |Good |Poor |Very |Good |Good |Very

 | | | | | | | poor | | | poor

 | | | | | | | | | |

377C2: | | | | | | | | | |

 Dinsdale, moderately | | | | | | | | | |

 eroded-----------------|Fair |Good |Good |Good |Good |Poor |Very |Good |Good |Very

 | | | | | | | poor | | | poor

 | | | | | | | | | |

382: | | | | | | | | | |

 Maxfield----------------|Good |Good |Good |Fair |Poor |Good |Good |Good |Fair |Good

 | | | | | | | | | |

391B: | | | | | | | | | |

 Clyde-------------------|Good |Good |Good |Fair |Poor |Good |Good |Good |Fair |Good

 | | | | | | | | | |

 Floyd-------------------|Good |Good |Good |Good |Good |Good |Good |Good |Good |Good

 | | | | | | | | | |

395B: | | | | | | | | | |

 Marquis-----------------|Good |Good |Good |Good |Good |Poor |Poor |Good |Good |Poor

 | | | | | | | | | |

398: | | | | | | | | | |

 Tripoli-----------------|Good |Good |Good |Fair |Poor |Good |Good |Good |Fair |Good

 | | | | | | | | | |

399: | | | | | | | | | |

 Readlyn-----------------|Good |Good |Good |Fair |Fair |Fair |Fair |Good |Fair |Fair

 | | | | | | | | | |

408B: | | | | | | | | | |

 Olin--------------------|Good |Good |Good |Good |Good |Poor |Poor |Good |Good |Poor

 | | | | | | | | | |

408C: | | | | | | | | | |

 Olin--------------------|Fair |Good |Good |Good |Good |Poor |Poor |Good |Good |Poor

 | | | | | | | | | |

412C: | | | | | | | | | |

 Emeline-----------------|Very |Very |Poor |Fair |Fair |Very |Very |Very |Fair |Very

 | poor | poor | | | | poor | poor | poor | | poor

 | | | | | | | | | |

426B: | | | | | | | | | |

 Aredale-----------------|Good |Good |Good |Good |Good |Poor |Poor |Good |Good |Poor

 | | | | | | | | | |

426C: | | | | | | | | | |

 Aredale-----------------|Fair |Good |Good |Good |Good |Very |Poor |Good |Good |Poor

 | | | | | | poor | | | |

 | | | | | | | | | |

426C2: | | | | | | | | | |

 Aredale, moderately | | | | | | | | | |

 eroded-----------------|Fair |Good |Good |Good |Good |Very |Poor |Good |Good |Poor

 | | | | | | poor | | | |

 | | | | | | | | | |

468B: | | | | | | | | | |

 Dunkerton---------------|Good |Good |Good |Good |Good |Poor |Poor |Good |Good |Poor

 | | | | | | | | | |

468C: | | | | | | | | | |

 Dunkerton---------------|Fair |Good |Good |Good |Good |Poor |Poor |Good |Good |Poor

 | | | | | | | | | |
236 Soil Survey of

Table 12.--Wildlife Habitat--Continued

____________________________________________________________________________________________________________

 | Potential for habitat elements |Potential as habitat for-- __________________________________________________________________________________

 Map symbol | Grain | | Wild | | | | | Open- | Wood- | Wetland

 and | and |Grasses|herba- | Hard- |Conif- |Wetland|Shallow| land | land | wild-

 soil name | seed | and | ceous | wood | erous |plants | water | wild- | wild- | life

 | crops |legumes|plants | trees |plants | | areas | life | life | ____________________________________________________________________________________________________________

 | | | | | | | | | |

471: | | | | | | | | | |

 Oran--------------------|Good |Good |Good |Good |Good |Fair |Fair |Good |Good |Fair

 | | | | | | | | | |

485: | | | | | | | | | |

 Spillville, occasionally| | | | | | | | | |

 flooded----------------|Good |Good |Good |Good |Good |Fair |Fair |Good |Good |Fair

 | | | | | | | | | |

585: | | | | | | | | | |

 Spillville, occasionally| | | | | | | | | |

 flooded----------------|Good |Good |Good |Good |Good |Fair |Fair |Good |Good |Fair

 | | | | | | | | | |

 Coland, occasionally | | | | | | | | | |

 flooded----------------|Good |Good |Good |Fair |Fair |Good |Good |Good |Fair |Good

 | | | | | | | | | |

626: | | | | | | | | | |

 Hayfield, 24 to 40 | | | | | | | | | |

 inches to sand and | | | | | | | | | |

 gravel-----------------|Good |Good |Good |Good |Good |Poor |Poor |Good |Good |Poor

 | | | | | | | | | |

761: | | | | | | | | | |

 Franklin----------------|Good |Good |Good |Good |Good |Fair |Fair |Good |Good |Fair

 | | | | | | | | | |

771B: | | | | | | | | | |

 Waubeek-----------------|Good |Good |Good |Good |Good |Poor |Poor |Good |Good |Poor

 | | | | | | | | | |

775B: | | | | | | | | | |

 Billett-----------------|Good |Good |Good |Good |Good |Poor |Very |Good |Good |Very

 | | | | | | | poor | | | poor

 | | | | | | | | | |

776C: | | | | | | | | | |

 Lilah-------------------|Poor |Fair |Fair |Fair |Fair |Very |Very |Poor |Fair |Very

 | | | | | | poor | poor | | | poor

 | | | | | | | | | |

777: | | | | | | | | | |

 Wapsie------------------|Good |Good |Good |Good |Good |Poor |Very |Good |Good |Very

 | | | | | | | poor | | | poor

 | | | | | | | | | |

781B: | | | | | | | | | |

 Lourdes-----------------|Good |Good |Good |Good |Good |Fair |Fair |Good |Good |Fair

 | | | | | | | | | |

781C2: | | | | | | | | | |

 Lourdes, moderately | | | | | | | | | |

 eroded-----------------|Fair |Good |Good |Good |Good |Poor |Poor |Good |Good |Poor

 | | | | | | | | | |

782B: | | | | | | | | | |

 Donnan------------------|Good |Good |Good |Good |Good |Fair |Fair |Good |Good |Fair

 | | | | | | | | | |

798: | | | | | | | | | |

 Protivin----------------|Good |Fair |Good |Fair |Fair |Good |Good |Fair |Fair |Good

 | | | | | | | | | |

809B: | | | | | | | | | |

 Bertram-----------------|Fair |Fair |Fair |Fair |Fair |Very |Very |Fair |Fair |Very

 | | | | | | poor | poor | | | poor

 | | | | | | | | | |

877B: | | | | | | | | | |

 Dinsmore----------------|Good |Good |Good |Good |Good |Poor |Very |Good |Good |Very

 | | | | | | | poor | | | poor

 | | | | | | | | | |

884: | | | | | | | | | |

 Klingmore---------------|Good |Good |Good |Good |Good |Fair |Fair |Good |Good |Fair

 | | | | | | | | | |
Black Hawk County, Iowa 237

Table 12.--Wildlife Habitat--Continued

____________________________________________________________________________________________________________

 | Potential for habitat elements |Potential as habitat for-- __________________________________________________________________________________

 Map symbol | Grain | | Wild | | | | | Open- | Wood- | Wetland

 and | and |Grasses|herba- | Hard- |Conif- |Wetland|Shallow| land | land | wild-

 soil name | seed | and | ceous | wood | erous |plants | water | wild- | wild- | life

 | crops |legumes|plants | trees |plants | | areas | life | life | ____________________________________________________________________________________________________________

 | | | | | | | | | |

911B: | | | | | | | | | |

 Colo--------------------|Good |Fair |Good |Fair |Poor |Good |Good |Fair |Fair |Good

 | | | | | | | | | |

 Ely---------------------|Good |Good |Good |Good |Good |Fair |Very |Good |Good |Poor

 | | | | | | | poor | | |

 | | | | | | | | | |

933: | | | | | | | | | |

 Sawmill, occasionally | | | | | | | | | |

 flooded----------------|Good |Good |Good |Fair |Fair |Good |Fair |Good |Fair |Fair

 | | | | | | | | | |

982: | | | | | | | | | |

 Maxmore-----------------|Good |Good |Good |Fair |Poor |Good |Good |Good |Fair |Good

 | | | | | | | | | |

1152: | | | | | | | | | |

 Marshan, 24 to 40 inches| | | | | | | | | |

 to sand and gravel-----|Good |Good |Good |Fair |Poor |Good |Good |Good |Fair |Good

 | | | | | | | | | |

1226: | | | | | | | | | |

 Lawler, 24 to 40 inches | | | | | | | | | |

 to sand and gravel-----|Good |Good |Good |Good |Good |Fair |Fair |Good |Good |Fair

 | | | | | | | | | |

1285G: | | | | | | | | | |

 Burkhardt---------------|Poor |Fair |Fair |Fair |Fair |Very |Very |Fair |Fair |Very

 | | | | | | poor | poor | | | poor

 | | | | | | | | | |

 Bassett. | | | | | | | | | |

 | | | | | | | | | |

 Chelsea. | | | | | | | | | |

 | | | | | | | | | |

1585: | | | | | | | | | |

 Spillville, frequently | | | | | | | | | |

 flooded----------------|Good |Good |Good |Good |Good |Fair |Fair |Good |Good |Fair

 | | | | | | | | | |

 Coland, frequently | | | | | | | | | |

 flooded----------------|Poor |Fair |Fair |Poor |Poor |Good |Good |Poor |Poor |Good

 | | | | | | | | | |

 Aquolls, ponded. | | | | | | | | | |

 | | | | | | | | | |

1586: | | | | | | | | | |

 Sigglekov, frequently | | | | | | | | | |

 flooded----------------|Very |Very |Very |Very |Very |Very |Very |Fair |Poor |Very

 | poor | poor | poor | poor | poor | poor | poor | | | poor

 | | | | | | | | | |

 Fluvaquents, frequently | | | | | | | | | |

 flooded. | | | | | | | | | |

 | | | | | | | | | |

 Aquents, ponded. | | | | | | | | | |

 | | | | | | | | | |

4000. | | | | | | | | | |

 Urban land | | | | | | | | | |

 | | | | | | | | | |

4007: | | | | | | | | | |

 Wiota-------------------|Good |Good |Good |Good |Good |Poor |Poor |Good |Good |Poor

 | | | | | | | | | |

 Urban land. | | | | | | | | | |

 | | | | | | | | | |

4041: | | | | | | | | | |

 Sparta------------------|Fair |Fair |Fair |Fair |Fair |Very |Very |Fair |Fair |Very

 | | | | | | poor | poor | | | poor

 | | | | | | | | | |

 Urban land. | | | | | | | | | |

 | | | | | | | | | |
238 Soil Survey of

Table 12.--Wildlife Habitat--Continued

____________________________________________________________________________________________________________

 | Potential for habitat elements |Potential as habitat for-- __________________________________________________________________________________

 Map symbol | Grain | | Wild | | | | | Open- | Wood- | Wetland

 and | and |Grasses|herba- | Hard- |Conif- |Wetland|Shallow| land | land | wild-

 soil name | seed | and | ceous | wood | erous |plants | water | wild- | wild- | life

 | crops |legumes|plants | trees |plants | | areas | life | life | ____________________________________________________________________________________________________________

 | | | | | | | | | |

4041B: | | | | | | | | | |

 Sparta------------------|Fair |Fair |Fair |Fair |Fair |Very |Very |Fair |Fair |Very

 | | | | | | poor | poor | | | poor

 | | | | | | | | | |

 Urban land. | | | | | | | | | |

 | | | | | | | | | |

4041C: | | | | | | | | | |

 Sparta------------------|Poor |Fair |Fair |Fair |Fair |Very |Very |Fair |Fair |Very

 | | | | | | poor | poor | | | poor

 | | | | | | | | | |

 Urban land. | | | | | | | | | |

 | | | | | | | | | |

4041D: | | | | | | | | | |

 Sparta------------------|Poor |Fair |Fair |Fair |Fair |Very |Very |Fair |Fair |Very

 | | | | | | poor | poor | | | poor

 | | | | | | | | | |

 Urban land. | | | | | | | | | |

 | | | | | | | | | |

4063B: | | | | | | | | | |

 Chelsea-----------------|Poor |Fair |Fair |Poor |Poor |Very |Very |Fair |Poor |Very

 | | | | | | poor | poor | | | poor

 | | | | | | | | | |

 Urban land. | | | | | | | | | |

 | | | | | | | | | |

4063C: | | | | | | | | | |

 Chelsea-----------------|Poor |Fair |Fair |Poor |Poor |Very |Very |Fair |Poor |Very

 | | | | | | poor | poor | | | poor

 | | | | | | | | | |

 Urban land. | | | | | | | | | |

 | | | | | | | | | |

4063D: | | | | | | | | | |

 Chelsea-----------------|Very |Fair |Fair |Poor |Poor |Very |Very |Poor |Poor |Very

 | poor | | | | | poor | poor | | | poor

 | | | | | | | | | |

 Urban land. | | | | | | | | | |

 | | | | | | | | | |

4083B: | | | | | | | | | |

 Kenyon------------------|Good |Good |Good |Good |Good |Poor |Poor |Good |Good |Poor

 | | | | | | | | | |

 Urban land. | | | | | | | | | |

 | | | | | | | | | |

4083C: | | | | | | | | | |

 Kenyon------------------|Good |Good |Good |Good |Good |Poor |Poor |Good |Good |Poor

 | | | | | | | | | |

 Urban land. | | | | | | | | | |

 | | | | | | | | | |

4083D: | | | | | | | | | |

 Kenyon------------------|Good |Good |Good |Good |Good |Poor |Poor |Good |Good |Poor

 | | | | | | | | | |

 Urban land. | | | | | | | | | |

 | | | | | | | | | |

4084: | | | | | | | | | |

 Clyde-------------------|Good |Good |Good |Fair |Poor |Good |Good |Good |Fair |Good

 | | | | | | | | | |

 Urban land. | | | | | | | | | |

 | | | | | | | | | |

4088: | | | | | | | | | |

 Nevin-------------------|Good |Good |Good |Good |Good |Fair |Fair |Good |Good |Fair

 | | | | | | | | | |

 Urban land. | | | | | | | | | |

 | | | | | | | | | |
Black Hawk County, Iowa 239

Table 12.--Wildlife Habitat--Continued

____________________________________________________________________________________________________________

 | Potential for habitat elements |Potential as habitat for-- __________________________________________________________________________________

 Map symbol | Grain | | Wild | | | | | Open- | Wood- | Wetland

 and | and |Grasses|herba- | Hard- |Conif- |Wetland|Shallow| land | land | wild-

 soil name | seed | and | ceous | wood | erous |plants | water | wild- | wild- | life

 | crops |legumes|plants | trees |plants | | areas | life | life | ____________________________________________________________________________________________________________

 | | | | | | | | | |

4133: | | | | | | | | | |

 Colo, occasionally | | | | | | | | | |

 flooded----------------|Good |Fair |Good |Fair |Poor |Good |Good |Fair |Fair |Good

 | | | | | | | | | |

 Urban land. | | | | | | | | | |

 | | | | | | | | | |

4135: | | | | | | | | | |

 Coland, occasionally | | | | | | | | | |

 flooded----------------|Good |Good |Good |Fair |Fair |Good |Good |Good |Fair |Good

 | | | | | | | | | |

 Urban land. | | | | | | | | | |

 | | | | | | | | | |

4152: | | | | | | | | | |

 Marshan, 24 to 40 inches| | | | | | | | | |

 to sand and gravel-----|Good |Good |Good |Fair |Poor |Good |Good |Good |Fair |Good

 | | | | | | | | | |

 Urban land. | | | | | | | | | |

 | | | | | | | | | |

4159: | | | | | | | | | |

 Finchford---------------|Poor |Poor |Fair |Poor |Poor |Very |Very |Poor |Poor |Very

 | | | | | | poor | poor | | | poor

 | | | | | | | | | |

 Urban land. | | | | | | | | | |

 | | | | | | | | | |

4159C: | | | | | | | | | |

 Finchford---------------|Poor |Poor |Fair |Poor |Poor |Very |Very |Poor |Poor |Very

 | | | | | | poor | poor | | | poor

 | | | | | | | | | |

 Urban land. | | | | | | | | | |

 | | | | | | | | | |

4171B: | | | | | | | | | |

 Bassett-----------------|Good |Good |Good |Good |Good |Fair |Fair |Good |Good |Fair

 | | | | | | | | | |

 Urban land. | | | | | | | | | |

 | | | | | | | | | |

4171D: | | | | | | | | | |

 Bassett-----------------|Good |Good |Good |Good |Good |Fair |Fair |Good |Good |Fair

 | | | | | | | | | |

 Urban land. | | | | | | | | | |

 | | | | | | | | | |

4175: | | | | | | | | | |

 Dickinson---------------|Good |Good |Good |Good |Good |Poor |Very |Good |Good |Very

 | | | | | | | poor | | | poor

 | | | | | | | | | |

 Urban land. | | | | | | | | | |

 | | | | | | | | | |

4175B: | | | | | | | | | |

 Dickinson---------------|Good |Good |Good |Good |Good |Poor |Very |Good |Good |Very

 | | | | | | | poor | | | poor

 | | | | | | | | | |

 Urban land. | | | | | | | | | |

 | | | | | | | | | |

4177: | | | | | | | | | |

 Saude-------------------|Good |Good |Good |Good |Good |Poor |Very |Good |Good |Very

 | | | | | | | poor | | | poor

 | | | | | | | | | |

 Urban land. | | | | | | | | | |

 | | | | | | | | | |

4177B: | | | | | | | | | |

 Saude-------------------|Good |Good |Good |Good |Good |Poor |Very |Good |Good |Very

 | | | | | | | poor | | | poor

 | | | | | | | | | |
240 Soil Survey of

Table 12.--Wildlife Habitat--Continued

____________________________________________________________________________________________________________

 | Potential for habitat elements |Potential as habitat for-- __________________________________________________________________________________

 Map symbol | Grain | | Wild | | | | | Open- | Wood- | Wetland

 and | and |Grasses|herba- | Hard- |Conif- |Wetland|Shallow| land | land | wild-

 soil name | seed | and | ceous | wood | erous |plants | water | wild- | wild- | life

 | crops |legumes|plants | trees |plants | | areas | life | life | ____________________________________________________________________________________________________________

 | | | | | | | | | |

4177B: | | | | | | | | | |

 Urban land. | | | | | | | | | |

 | | | | | | | | | |

4178: | | | | | | | | | |

 Waukee------------------|Good |Good |Good |Good |Good |Poor |Very |Good |Good |Very

 | | | | | | | poor | | | poor

 | | | | | | | | | |

 Urban land. | | | | | | | | | |

 | | | | | | | | | |

4184: | | | | | | | | | |

 Klinger-----------------|Good |Good |Good |Good |Good |Fair |Fair |Good |Good |Fair

 | | | | | | | | | |

 Urban land. | | | | | | | | | |

 | | | | | | | | | |

4198B: | | | | | | | | | |

 Floyd-------------------|Good |Good |Good |Good |Good |Good |Good |Good |Good |Good

 | | | | | | | | | |

 Urban land. | | | | | | | | | |

 | | | | | | | | | |

4226: | | | | | | | | | |

 Lawler, 24 to 40 inches | | | | | | | | | |

 to sand and gravel-----|Good |Good |Good |Good |Good |Fair |Fair |Good |Good |Fair

 | | | | | | | | | |

 Urban land. | | | | | | | | | |

 | | | | | | | | | |

4284: | | | | | | | | | |

 Flagler-----------------|Fair |Fair |Fair |Fair |Fair |Very |Very |Fair |Fair |Very

 | | | | | | poor | poor | | | poor

 | | | | | | | | | |

 Urban land. | | | | | | | | | |

 | | | | | | | | | |

4284B: | | | | | | | | | |

 Flagler-----------------|Fair |Fair |Fair |Fair |Fair |Very |Very |Fair |Fair |Very

 | | | | | | poor | poor | | | poor

 | | | | | | | | | |

 Urban land. | | | | | | | | | |

 | | | | | | | | | |

4377B: | | | | | | | | | |

 Dinsdale----------------|Good |Good |Good |Good |Good |Poor |Poor |Good |Good |Poor

 | | | | | | | | | |

 Urban land. | | | | | | | | | |

 | | | | | | | | | |

4377C: | | | | | | | | | |

 Dinsdale----------------|Fair |Good |Good |Good |Good |Poor |Very |Good |Good |Very

 | | | | | | | poor | | | poor

 | | | | | | | | | |

 Urban land. | | | | | | | | | |

 | | | | | | | | | |

4382: | | | | | | | | | |

 Maxfield----------------|Good |Good |Good |Fair |Poor |Good |Good |Good |Fair |Good

 | | | | | | | | | |

 Urban land. | | | | | | | | | |

 | | | | | | | | | |

4391B: | | | | | | | | | |

 Clyde-------------------|Good |Good |Good |Fair |Poor |Good |Good |Good |Fair |Good

 | | | | | | | | | |

 Floyd-------------------|Good |Good |Good |Good |Good |Good |Good |Good |Good |Good

 | | | | | | | | | |

 Urban land. | | | | | | | | | |

 | | | | | | | | | |
Black Hawk County, Iowa 241

Table 12.--Wildlife Habitat--Continued

____________________________________________________________________________________________________________

 | Potential for habitat elements |Potential as habitat for-- __________________________________________________________________________________

 Map symbol | Grain | | Wild | | | | | Open- | Wood- | Wetland

 and | and |Grasses|herba- | Hard- |Conif- |Wetland|Shallow| land | land | wild-

 soil name | seed | and | ceous | wood | erous |plants | water | wild- | wild- | life

 | crops |legumes|plants | trees |plants | | areas | life | life | ____________________________________________________________________________________________________________

 | | | | | | | | | |

4398: | | | | | | | | | |

 Tripoli-----------------|Good |Good |Good |Fair |Poor |Good |Good |Good |Fair |Good

 | | | | | | | | | |

 Urban land. | | | | | | | | | |

 | | | | | | | | | |

4399: | | | | | | | | | |

 Readlyn-----------------|Good |Good |Good |Fair |Fair |Fair |Fair |Good |Fair |Fair

 | | | | | | | | | |

 Urban land. | | | | | | | | | |

 | | | | | | | | | |

4408B: | | | | | | | | | |

 Olin--------------------|Good |Good |Good |Good |Good |Poor |Poor |Good |Good |Poor

 | | | | | | | | | |

 Urban land. | | | | | | | | | |

 | | | | | | | | | |

4408C: | | | | | | | | | |

 Olin--------------------|Fair |Good |Good |Good |Good |Poor |Poor |Good |Good |Poor

 | | | | | | | | | |

 Urban land. | | | | | | | | | |

 | | | | | | | | | |

4426B: | | | | | | | | | |

 Aredale-----------------|Good |Good |Good |Good |Good |Poor |Poor |Good |Good |Poor

 | | | | | | | | | |

 Urban land. | | | | | | | | | |

 | | | | | | | | | |

4426C: | | | | | | | | | |

 Aredale-----------------|Fair |Good |Good |Good |Good |Very |Poor |Good |Good |Poor

 | | | | | | poor | | | |

 | | | | | | | | | |

 Urban land. | | | | | | | | | |

 | | | | | | | | | |

4585: | | | | | | | | | |

 Spillville, occasionally| | | | | | | | | |

 flooded----------------|Good |Good |Good |Good |Good |Fair |Fair |Good |Good |Fair

 | | | | | | | | | |

 Coland, occasionally | | | | | | | | | |

 flooded----------------|Good |Good |Good |Fair |Fair |Good |Good |Good |Fair |Good

 | | | | | | | | | |

 Urban land. | | | | | | | | | |

 | | | | | | | | | |

4761: | | | | | | | | | |

 Franklin----------------|Good |Good |Good |Good |Good |Fair |Fair |Good |Good |Fair

 | | | | | | | | | |

 Urban land. | | | | | | | | | |

 | | | | | | | | | |

4771B: | | | | | | | | | |

 Waubeek-----------------|Good |Good |Good |Good |Good |Poor |Poor |Good |Good |Poor

 | | | | | | | | | |

 Urban land. | | | | | | | | | |

 | | | | | | | | | |

4771D: | | | | | | | | | |

 Waubeek-----------------|Good |Good |Good |Good |Good |Poor |Poor |Good |Good |Poor

 | | | | | | | | | |

 Urban land. | | | | | | | | | |

 | | | | | | | | | |

4798: | | | | | | | | | |

 Protivin----------------|Good |Fair |Good |Fair |Fair |Good |Good |Fair |Fair |Good

 | | | | | | | | | |

 Urban land. | | | | | | | | | |

 | | | | | | | | | |
242 Soil Survey of

Table 12.--Wildlife Habitat--Continued

____________________________________________________________________________________________________________

 | Potential for habitat elements |Potential as habitat for-- __________________________________________________________________________________

 Map symbol | Grain | | Wild | | | | | Open- | Wood- | Wetland

 and | and |Grasses|herba- | Hard- |Conif- |Wetland|Shallow| land | land | wild-

 soil name | seed | and | ceous | wood | erous |plants | water | wild- | wild- | life

 | crops |legumes|plants | trees |plants | | areas | life | life | ____________________________________________________________________________________________________________

 | | | | | | | | | |

4911B: | | | | | | | | | |

 Colo--------------------|Good |Fair |Good |Fair |Poor |Good |Good |Fair |Fair |Good

 | | | | | | | | | |

 Ely---------------------|Good |Good |Good |Good |Good |Fair |Very |Good |Good |Poor

 | | | | | | | poor | | |

 | | | | | | | | | |

 Urban land. | | | | | | | | | |

 | | | | | | | | | |

4933: | | | | | | | | | |

 Sawmill, occasionally | | | | | | | | | |

 flooded----------------|Good |Good |Good |Fair |Fair |Good |Fair |Good |Fair |Fair

 | | | | | | | | | |

 Urban land. | | | | | | | | | |

 | | | | | | | | | |

4946: | | | | | | | | | |

 Orthents, loamy. | | | | | | | | | |

 | | | | | | | | | |

 Urban land. | | | | | | | | | |

 | | | | | | | | | |

5010. | | | | | | | | | |

 Pits, sand and gravel | | | | | | | | | |

 | | | | | | | | | |

5030. | | | | | | | | | |

 Pits, limestone quarries| | | | | | | | | |

 | | | | | | | | | |

5040. | | | | | | | | | |

 Orthents, loamy | | | | | | | | | |

 | | | | | | | | | |

5053. | | | | | | | | | |

 Psammaquents, frequently| | | | | | | | | |

 flooded | | | | | | | | | |

 | | | | | | | | | |

5080. | | | | | | | | | |

 Orthents, sanitary | | | | | | | | | |

 landfill | | | | | | | | | |

 | | | | | | | | | |

AW. | | | | | | | | | |

 Animal waste | | | | | | | | | |

 | | | | | | | | | |

SL. | | | | | | | | | |

 Sewage lagoon | | | | | | | | | |

 | | | | | | | | | |

W. | | | | | | | | | |

 Water | | | | | | | | | |

 | | | | | | | | | | ____________________________________________________________________________________________________________
Black Hawk County, Iowa 243

Table 13a.--Building Site Development

(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. "Not rated" indicates that data are not

 available or that no rating is applicable. See text for further explanation of ratings in

 this table)

___________________________________________________________________________________________________

 | | |

 Map symbol | Dwellings without | Dwellings with | Small commercial

 and soil name | basements | basements | buildings

 | | | _____________________________________________________________________________

 | Rating class and |Value| Rating class and |Value| Rating class and |Value

 | limiting features | | limiting features | | limiting features | ___________________________________________________________________________________________________

 | | | | | |

7: | | | | | |

 Wiota---------------|Somewhat limited | |Somewhat limited | |Somewhat limited |

 | Shrink-swell |0.06 | Shrink-swell |0.32 | Shrink-swell |0.06

 | | | | | |

41: | | | | | |

 Sparta--------------|Not limited | |Not limited | |Not limited |

 | | | | | |

41B: | | | | | |

 Sparta--------------|Not limited | |Not limited | |Not limited |

 | | | | | |

41C: | | | | | |

 Sparta--------------|Not limited | |Not limited | |Somewhat limited |

 | | | | | Slope |0.88

 | | | | | |

41D: | | | | | |

 Sparta--------------|Somewhat limited | |Somewhat limited | |Very limited |

 | Slope |0.63 | Slope |0.63 | Slope |1.00

 | | | | | |

63B: | | | | | |

 Chelsea-------------|Not limited | |Not limited | |Not limited |

 | | | | | |

63C: | | | | | |

 Chelsea-------------|Not limited | |Not limited | |Somewhat limited |

 | | | | | Slope |0.88

 | | | | | |

63D: | | | | | |

 Chelsea-------------|Somewhat limited | |Somewhat limited | |Very limited |

 | Slope |0.63 | Slope |0.63 | Slope |1.00

 | | | | | |

83B: | | | | | |

 Kenyon--------------|Not limited | |Somewhat limited | |Not limited |

 | | | Depth to |0.61 | |

 | | | saturated zone | | |

 | | | | | |

83C: | | | | | |

 Kenyon--------------|Not limited | |Somewhat limited | |Somewhat limited |

 | | | Depth to |0.61 | Slope |0.88

 | | | saturated zone | | |

 | | | | | |

83C2: | | | | | |

 Kenyon, moderately | | | | | |

 eroded-------------|Not limited | |Somewhat limited | |Somewhat limited |

 | | | Depth to |0.61 | Slope |0.88

 | | | saturated zone | | |

 | | | | | |

83D2: | | | | | |

 Kenyon, moderately | | | | | |

 eroded-------------|Somewhat limited | |Somewhat limited | |Very limited |

 | Slope |0.63 | Slope |0.63 | Slope |1.00

 | | | Depth to |0.61 | |

 | | | saturated zone | | |

 | | | | | |
244 Soil Survey of

Table 13a.--Building Site Development--Continued

___________________________________________________________________________________________________

 | | |

 Map symbol | Dwellings without | Dwellings with | Small commercial

 and soil name | basements | basements | buildings

 | | | _____________________________________________________________________________

 | Rating class and |Value| Rating class and |Value| Rating class and |Value

 | limiting features | | limiting features | | limiting features | ___________________________________________________________________________________________________

 | | | | | |

84: | | | | | |

 Clyde---------------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone | | saturated zone |

 | Shrink-swell |0.18 | Shrink-swell |0.18 | Shrink-swell |0.18

 | | | | | |

88: | | | | | |

 Nevin---------------|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 |

 | Shrink-swell |0.06 | Shrink-swell |0.68 | Shrink-swell |0.06

 | | | | | |

133: | | | | | |

 Colo, occasionally | | | | | |

 flooded------------|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 |

 | Shrink-swell |0.50 | Shrink-swell |0.50 | Shrink-swell |0.50

 | | | | | |

135: | | | | | |

 Coland, occasionally| | | | | |

 flooded------------|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 |

 | Shrink-swell |0.50 | Shrink-swell |0.50 | Shrink-swell |0.50

 | | | | | |

159: | | | | | |

 Finchford-----------|Not limited | |Not limited | |Not limited |

 | | | | | |

159C: | | | | | |

 Finchford-----------|Not limited | |Not limited | |Somewhat limited |

 | | | | | Slope |0.50

 | | | | | |

171B: | | | | | |

 Bassett-------------|Somewhat limited | |Very limited | |Somewhat limited |

 | Depth to |0.39 | Depth to |1.00 | Depth to |0.39

 | saturated zone | | saturated zone | | saturated zone |

 | | | | | |

175: | | | | | |

 Dickinson-----------|Not limited | |Not limited | |Not limited |

 | | | | | |

175B: | | | | | |

 Dickinson-----------|Not limited | |Not limited | |Not limited |

 | | | | | |

177: | | | | | |

 Saude---------------|Not limited | |Not limited | |Not limited |

 | | | | | |

177B: | | | | | |

 Saude---------------|Not limited | |Not limited | |Not limited |

 | | | | | |

178: | | | | | |

 Waukee--------------|Not limited | |Not limited | |Not limited |

 | | | | | |

178B: | | | | | |

 Waukee--------------|Not limited | |Not limited | |Not limited |

 | | | | | |
Black Hawk County, Iowa 245

Table 13a.--Building Site Development--Continued

___________________________________________________________________________________________________

 | | |

 Map symbol | Dwellings without | Dwellings with | Small commercial

 and soil name | basements | basements | buildings

 | | | _____________________________________________________________________________

 | Rating class and |Value| Rating class and |Value| Rating class and |Value

 | limiting features | | limiting features | | limiting features | ___________________________________________________________________________________________________

 | | | | | |

184: | | | | | |

 Klinger-------------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone | | saturated zone |

 | Shrink-swell |0.32 | | | Shrink-swell |0.32

 | | | | | |

198B: | | | | | |

 Floyd---------------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone | | saturated zone |

 | | | | | |

213B: | | | | | |

 Rockton, 30 to 40 | | | | | |

 inches to limestone|Somewhat limited | |Very limited | |Somewhat limited |

 | Shrink-swell |0.32 | Depth to hard |1.00 | Shrink-swell |0.32

 | Depth to hard |0.10 | bedrock | | Depth to hard |0.10

 | bedrock | | Shrink-swell |0.32 | bedrock |

 | | | | | |

221: | | | | | |

 Klossner------------|Very limited | |Very limited | |Very limited |

 | Subsidence |1.00 | Subsidence |1.00 | Subsidence |1.00

 | Depth to |1.00 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone | | saturated zone |

 | Content of |1.00 | Shrink-swell |0.32 | Content of |1.00

 | organic matter | | | | organic matter |

 | | | | | |

284: | | | | | |

 Flagler-------------|Not limited | |Not limited | |Not limited |

 | | | | | |

284B: | | | | | |

 Flagler-------------|Not limited | |Not limited | |Not limited |

 | | | | | |

290: | | | | | |

 Dells---------------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone | | saturated zone |

 | Shrink-swell |0.18 | | | Shrink-swell |0.18

 | | | | | |

354: | | | | | |

 Aquolls, ponded-----|Very limited | |Very limited | |Very limited |

 | Ponding |1.00 | Ponding |1.00 | Ponding |1.00

 | Depth to |1.00 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone | | saturated zone |

 | | | | | |

377B: | | | | | |

 Dinsdale------------|Somewhat limited | |Somewhat limited | |Somewhat limited |

 | Shrink-swell |0.68 | Depth to |0.61 | Shrink-swell |0.68

 | | | saturated zone | | |

 | | | | | |

377C: | | | | | |

 Dinsdale------------|Somewhat limited | |Somewhat limited | |Somewhat limited |

 | Shrink-swell |0.68 | Depth to |0.61 | Slope |0.88

 | | | saturated zone | | Shrink-swell |0.68

 | | | | | |

377C2: | | | | | |

 Dinsdale, moderately| | | | | |

 eroded-------------|Somewhat limited | |Somewhat limited | |Somewhat limited |

 | Shrink-swell |0.68 | Depth to |0.61 | Slope |0.88

 | | | saturated zone | | Shrink-swell |0.68

 | | | | | |
246 Soil Survey of

Table 13a.--Building Site Development--Continued

___________________________________________________________________________________________________

 | | |

 Map symbol | Dwellings without | Dwellings with | Small commercial

 and soil name | basements | basements | buildings

 | | | _____________________________________________________________________________

 | Rating class and |Value| Rating class and |Value| Rating class and |Value

 | limiting features | | limiting features | | limiting features | ___________________________________________________________________________________________________

 | | | | | |

382: | | | | | |

 Maxfield------------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone | | saturated zone |

 | | | | | |

391B: | | | | | |

 Clyde---------------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone | | saturated zone |

 | Shrink-swell |0.18 | Shrink-swell |0.18 | Shrink-swell |0.18

 | | | | | |

 Floyd---------------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone | | saturated zone |

 | | | | | |

395B: | | | | | |

 Marquis-------------|Somewhat limited | |Very limited | |Somewhat limited |

 | Depth to |0.39 | Depth to |1.00 | Depth to |0.39

 | saturated zone | | saturated zone | | saturated zone |

 | | | | | |

398: | | | | | |

 Tripoli-------------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone | | saturated zone |

 | | | | | |

399: | | | | | |

 Readlyn-------------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone | | saturated zone |

 | | | | | |

408B: | | | | | |

 Olin----------------|Not limited | |Not limited | |Not limited |

 | | | | | |

408C: | | | | | |

 Olin----------------|Not limited | |Not limited | |Somewhat limited |

 | | | | | Slope |0.88

 | | | | | |

412C: | | | | | |

 Emeline-------------|Very limited | |Very limited | |Very limited |

 | Depth to hard |1.00 | Depth to hard |1.00 | Depth to hard |1.00

 | bedrock | | bedrock | | bedrock |

 | | | | | Slope |0.50

 | | | | | |

426B: | | | | | |

 Aredale-------------|Not limited | |Not limited | |Not limited |

 | | | | | |

426C: | | | | | |

 Aredale-------------|Not limited | |Not limited | |Somewhat limited |

 | | | | | Slope |0.88

 | | | | | |

426C2: | | | | | |

 Aredale, moderately | | | | | |

 eroded-------------|Not limited | |Not limited | |Somewhat limited |

 | | | | | Slope |0.88

 | | | | | |

468B: | | | | | |

 Dunkerton-----------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone | | saturated zone |

 | Shrink-swell |0.06 | Shrink-swell |0.06 | Shrink-swell |0.06

 | | | | | |
Black Hawk County, Iowa 247

Table 13a.--Building Site Development--Continued

___________________________________________________________________________________________________

 | | |

 Map symbol | Dwellings without | Dwellings with | Small commercial

 and soil name | basements | basements | buildings

 | | | _____________________________________________________________________________

 | Rating class and |Value| Rating class and |Value| Rating class and |Value

 | limiting features | | limiting features | | limiting features | ___________________________________________________________________________________________________

 | | | | | |

468C: | | | | | |

 Dunkerton-----------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone | | saturated zone |

 | Shrink-swell |0.06 | Shrink-swell |0.06 | Slope |0.88

 | | | | | Shrink-swell |0.06

 | | | | | |

471: | | | | | |

 Oran----------------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone | | saturated zone |

 | | | | | |

485: | | | | | |

 Spillville, | | | | | |

 occasionally | | | | | |

 flooded------------|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 |

 | | | | | |

585: | | | | | |

 Spillville, | | | | | |

 occasionally | | | | | |

 flooded------------|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 |

 | | | | | |

 Coland, occasionally| | | | | |

 flooded------------|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 |

 | Shrink-swell |0.50 | Shrink-swell |0.50 | Shrink-swell |0.50

 | | | | | |

626: | | | | | |

 Hayfield, 24 to 40 | | | | | |

 inches to sand and | | | | | |

 gravel-------------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone | | saturated zone |

 | | | | | |

761: | | | | | |

 Franklin------------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone | | saturated zone |

 | Shrink-swell |0.68 | | | Shrink-swell |0.68

 | | | | | |

771B: | | | | | |

 Waubeek-------------|Somewhat limited | |Somewhat limited | |Somewhat limited |

 | Shrink-swell |0.18 | Depth to |0.61 | Shrink-swell |0.18

 | | | saturated zone | | |

 | | | | | |

775B: | | | | | |

 Billett-------------|Not limited | |Not limited | |Not limited |

 | | | | | |

776C: | | | | | |

 Lilah---------------|Not limited | |Not limited | |Somewhat limited |

 | | | | | Slope |0.50

 | | | | | |
248 Soil Survey of

Table 13a.--Building Site Development--Continued

___________________________________________________________________________________________________

 | | |

 Map symbol | Dwellings without | Dwellings with | Small commercial

 and soil name | basements | basements | buildings

 | | | _____________________________________________________________________________

 | Rating class and |Value| Rating class and |Value| Rating class and |Value

 | limiting features | | limiting features | | limiting features | ___________________________________________________________________________________________________

 | | | | | |

777: | | | | | |

 Wapsie--------------|Not limited | |Not limited | |Not limited |

 | | | | | |

781B: | | | | | |

 Lourdes-------------|Somewhat limited | |Somewhat limited | |Somewhat limited |

 | Shrink-swell |0.32 | Depth to |0.61 | Shrink-swell |0.32

 | | | saturated zone | | |

 | | | Shrink-swell |0.32 | |

 | | | | | |

781C2: | | | | | |

 Lourdes, moderately | | | | | |

 eroded-------------|Somewhat limited | |Somewhat limited | |Somewhat limited |

 | Shrink-swell |0.32 | Depth to |0.61 | Slope |0.88

 | | | saturated zone | | Shrink-swell |0.32

 | | | Shrink-swell |0.32 | |

 | | | | | |

782B: | | | | | |

 Donnan--------------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone | | saturated zone |

 | Shrink-swell |1.00 | Shrink-swell |1.00 | Shrink-swell |1.00

 | | | | | |

798: | | | | | |

 Protivin------------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone | | saturated zone |

 | Shrink-swell |0.32 | Shrink-swell |0.32 | Shrink-swell |0.32

 | | | | | |

809B: | | | | | |

 Bertram-------------|Somewhat limited | |Very limited | |Somewhat limited |

 | Depth to hard |0.46 | Depth to hard |1.00 | Depth to hard |0.46

 | bedrock | | bedrock | | bedrock |

 | | | | | |

877B: | | | | | |

 Dinsmore------------|Somewhat limited | |Somewhat limited | |Somewhat limited |

 | Shrink-swell |0.50 | Depth to |0.61 | Shrink-swell |0.50

 | | | saturated zone | | |

 | | | Shrink-swell |0.50 | |

 | | | | | |

884: | | | | | |

 Klingmore-----------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone | | saturated zone |

 | Shrink-swell |0.50 | Shrink-swell |0.50 | Shrink-swell |0.50

 | | | | | |

911B: | | | | | |

 Colo----------------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone | | saturated zone |

 | Shrink-swell |0.50 | Shrink-swell |0.50 | Shrink-swell |0.50

 | | | | | |

 Ely-----------------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone | | saturated zone |

 | Shrink-swell |0.01 | Shrink-swell |0.50 | Shrink-swell |0.01

 | | | | | |
Black Hawk County, Iowa 249

Table 13a.--Building Site Development--Continued

___________________________________________________________________________________________________

 | | |

 Map symbol | Dwellings without | Dwellings with | Small commercial

 and soil name | basements | basements | buildings

 | | | _____________________________________________________________________________

 | Rating class and |Value| Rating class and |Value| Rating class and |Value

 | limiting features | | limiting features | | limiting features | ___________________________________________________________________________________________________

 | | | | | |

933: | | | | | |

 Sawmill, | | | | | |

 occasionally | | | | | |

 flooded------------|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 |

 | Shrink-swell |0.50 | Shrink-swell |0.32 | Shrink-swell |0.50

 | | | | | |

982: | | | | | |

 Maxmore-------------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone | | saturated zone |

 | Shrink-swell |0.68 | Shrink-swell |0.68 | Shrink-swell |0.68

 | | | | | |

1152: | | | | | |

 Marshan, 24 to 40 | | | | | |

 inches to sand and | | | | | |

 gravel-------------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone | | saturated zone |

 | | | | | |

1226: | | | | | |

 Lawler, 24 to 40 | | | | | |

 inches to sand and | | | | | |

 gravel-------------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone | | saturated zone |

 | | | | | |

1285G: | | | | | |

 Burkhardt-----------|Very limited | |Very limited | |Very limited |

 | Slope |1.00 | Slope |1.00 | Slope |1.00

 | | | | | |

 Bassett-------------|Very limited | |Very limited | |Very limited |

 | Slope |1.00 | Slope |1.00 | Slope |1.00

 | Depth to |0.39 | Depth to |1.00 | Depth to |0.39

 | saturated zone | | saturated zone | | saturated zone |

 | | | | | |

 Chelsea-------------|Very limited | |Very limited | |Very limited |

 | Slope |1.00 | Slope |1.00 | Slope |1.00

 | | | | | |

1585: | | | | | |

 Spillville, | | | | | |

 frequently flooded |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 |

 | | | | | |

 Coland, frequently | | | | | |

 flooded------------|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 |

 | Shrink-swell |0.50 | Shrink-swell |0.50 | Shrink-swell |0.50

 | | | | | |

 Aquolls, ponded-----|Very limited | |Very limited | |Very limited |

 | Ponding |1.00 | Ponding |1.00 | Ponding |1.00

 | Depth to |1.00 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone | | saturated zone |

 | | | | | |
250 Soil Survey of

Table 13a.--Building Site Development--Continued

___________________________________________________________________________________________________

 | | |

 Map symbol | Dwellings without | Dwellings with | Small commercial

 and soil name | basements | basements | buildings

 | | | _____________________________________________________________________________

 | Rating class and |Value| Rating class and |Value| Rating class and |Value

 | limiting features | | limiting features | | limiting features | ___________________________________________________________________________________________________

 | | | | | |

1586: | | | | | |

 Sigglekov, | | | | | |

 frequently flooded |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 |

 | | | | | |

 Fluvaquents, | | | | | |

 frequently flooded |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 |

 | | | | | |

 Aquents, ponded-----|Very limited | |Very limited | |Very limited |

 | Ponding |1.00 | Ponding |1.00 | Ponding |1.00

 | Depth to |1.00 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone | | saturated zone |

 | | | | | |

4000: | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4007: | | | | | |

 Wiota---------------|Somewhat limited | |Somewhat limited | |Somewhat limited |

 | Shrink-swell |0.06 | Shrink-swell |0.82 | Shrink-swell |0.06

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4041: | | | | | |

 Sparta--------------|Not limited | |Not limited | |Not limited |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4041B: | | | | | |

 Sparta--------------|Not limited | |Not limited | |Not limited |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4041C: | | | | | |

 Sparta--------------|Not limited | |Not limited | |Somewhat limited |

 | | | | | Slope |0.88

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4041D: | | | | | |

 Sparta--------------|Somewhat limited | |Somewhat limited | |Very limited |

 | Slope |0.63 | Slope |0.63 | Slope |1.00

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4063B: | | | | | |

 Chelsea-------------|Not limited | |Not limited | |Not limited |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4063C: | | | | | |

 Chelsea-------------|Not limited | |Not limited | |Somewhat limited |

 | | | | | Slope |0.88

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |
Black Hawk County, Iowa 251

Table 13a.--Building Site Development--Continued

___________________________________________________________________________________________________

 | | |

 Map symbol | Dwellings without | Dwellings with | Small commercial

 and soil name | basements | basements | buildings

 | | | _____________________________________________________________________________

 | Rating class and |Value| Rating class and |Value| Rating class and |Value

 | limiting features | | limiting features | | limiting features | ___________________________________________________________________________________________________

 | | | | | |

4063D: | | | | | |

 Chelsea-------------|Somewhat limited | |Somewhat limited | |Very limited |

 | Slope |0.63 | Slope |0.63 | Slope |1.00

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4083B: | | | | | |

 Kenyon--------------|Not limited | |Somewhat limited | |Not limited |

 | | | Depth to |0.61 | |

 | | | saturated zone | | |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4083C: | | | | | |

 Kenyon--------------|Not limited | |Somewhat limited | |Somewhat limited |

 | | | Depth to |0.61 | Slope |0.88

 | | | saturated zone | | |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4083D: | | | | | |

 Kenyon--------------|Somewhat limited | |Somewhat limited | |Very limited |

 | Slope |0.63 | Slope |0.63 | Slope |1.00

 | | | Depth to |0.61 | |

 | | | saturated zone | | |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4084: | | | | | |

 Clyde---------------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone | | saturated zone |

 | Shrink-swell |0.18 | Shrink-swell |0.18 | Shrink-swell |0.18

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4088: | | | | | |

 Nevin---------------|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 |

 | Shrink-swell |0.06 | Shrink-swell |0.68 | Shrink-swell |0.06

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4133: | | | | | |

 Colo, occasionally | | | | | |

 flooded------------|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 |

 | Shrink-swell |0.50 | Shrink-swell |0.50 | Shrink-swell |0.50

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |
252 Soil Survey of

Table 13a.--Building Site Development--Continued

___________________________________________________________________________________________________

 | | |

 Map symbol | Dwellings without | Dwellings with | Small commercial

 and soil name | basements | basements | buildings

 | | | _____________________________________________________________________________

 | Rating class and |Value| Rating class and |Value| Rating class and |Value

 | limiting features | | limiting features | | limiting features | ___________________________________________________________________________________________________

 | | | | | |

4135: | | | | | |

 Coland, occasionally| | | | | |

 flooded------------|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 |

 | Shrink-swell |0.50 | Shrink-swell |0.50 | Shrink-swell |0.50

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4152: | | | | | |

 Marshan, 24 to 40 | | | | | |

 inches to sand and | | | | | |

 gravel-------------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone | | saturated zone |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4159: | | | | | |

 Finchford-----------|Not limited | |Not limited | |Not limited |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4159C: | | | | | |

 Finchford-----------|Not limited | |Not limited | |Somewhat limited |

 | | | | | Slope |0.50

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4171B: | | | | | |

 Bassett-------------|Somewhat limited | |Very limited | |Somewhat limited |

 | Depth to |0.39 | Depth to |1.00 | Depth to |0.39

 | saturated zone | | saturated zone | | saturated zone |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4171D: | | | | | |

 Bassett-------------|Somewhat limited | |Very limited | |Very limited |

 | Slope |0.63 | Depth to |1.00 | Slope |1.00

 | Depth to |0.39 | saturated zone | | Depth to |0.39

 | saturated zone | | Slope |0.63 | saturated zone |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4175: | | | | | |

 Dickinson-----------|Not limited | |Not limited | |Not limited |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4175B: | | | | | |

 Dickinson-----------|Not limited | |Not limited | |Not limited |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4177: | | | | | |

 Saude---------------|Not limited | |Not limited | |Not limited |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |
Black Hawk County, Iowa 253

Table 13a.--Building Site Development--Continued

___________________________________________________________________________________________________

 | | |

 Map symbol | Dwellings without | Dwellings with | Small commercial

 and soil name | basements | basements | buildings

 | | | _____________________________________________________________________________

 | Rating class and |Value| Rating class and |Value| Rating class and |Value

 | limiting features | | limiting features | | limiting features | ___________________________________________________________________________________________________

 | | | | | |

4177B: | | | | | |

 Saude---------------|Not limited | |Not limited | |Not limited |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4178: | | | | | |

 Waukee--------------|Not limited | |Not limited | |Not limited |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4184: | | | | | |

 Klinger-------------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone | | saturated zone |

 | Shrink-swell |0.32 | | | Shrink-swell |0.32

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4198B: | | | | | |

 Floyd---------------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone | | saturated zone |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4226: | | | | | |

 Lawler, 24 to 40 | | | | | |

 inches to sand and | | | | | |

 gravel-------------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone | | saturated zone |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4284: | | | | | |

 Flagler-------------|Not limited | |Not limited | |Not limited |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4284B: | | | | | |

 Flagler-------------|Not limited | |Not limited | |Not limited |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4377B: | | | | | |

 Dinsdale------------|Somewhat limited | |Somewhat limited | |Somewhat limited |

 | Shrink-swell |0.68 | Depth to |0.61 | Shrink-swell |0.68

 | | | saturated zone | | |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4377C: | | | | | |

 Dinsdale------------|Somewhat limited | |Somewhat limited | |Somewhat limited |

 | Shrink-swell |0.68 | Depth to |0.61 | Slope |0.88

 | | | saturated zone | | Shrink-swell |0.68

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |
254 Soil Survey of

Table 13a.--Building Site Development--Continued

___________________________________________________________________________________________________

 | | |

 Map symbol | Dwellings without | Dwellings with | Small commercial

 and soil name | basements | basements | buildings

 | | | _____________________________________________________________________________

 | Rating class and |Value| Rating class and |Value| Rating class and |Value

 | limiting features | | limiting features | | limiting features | ___________________________________________________________________________________________________

 | | | | | |

4382: | | | | | |

 Maxfield------------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone | | saturated zone |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4391B: | | | | | |

 Clyde---------------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone | | saturated zone |

 | Shrink-swell |0.18 | Shrink-swell |0.18 | Shrink-swell |0.18

 | | | | | |

 Floyd---------------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone | | saturated zone |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4398: | | | | | |

 Tripoli-------------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone | | saturated zone |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4399: | | | | | |

 Readlyn-------------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone | | saturated zone |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4408B: | | | | | |

 Olin----------------|Not limited | |Not limited | |Not limited |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4408C: | | | | | |

 Olin----------------|Not limited | |Not limited | |Somewhat limited |

 | | | | | Slope |0.88

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4426B: | | | | | |

 Aredale-------------|Not limited | |Not limited | |Not limited |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4426C: | | | | | |

 Aredale-------------|Not limited | |Not limited | |Somewhat limited |

 | | | | | Slope |0.88

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |
Black Hawk County, Iowa 255

Table 13a.--Building Site Development--Continued

___________________________________________________________________________________________________

 | | |

 Map symbol | Dwellings without | Dwellings with | Small commercial

 and soil name | basements | basements | buildings

 | | | _____________________________________________________________________________

 | Rating class and |Value| Rating class and |Value| Rating class and |Value

 | limiting features | | limiting features | | limiting features | ___________________________________________________________________________________________________

 | | | | | |

4585: | | | | | |

 Spillville, | | | | | |

 occasionally | | | | | |

 flooded------------|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 |

 | | | | | |

 Coland, occasionally| | | | | |

 flooded------------|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 |

 | Shrink-swell |0.50 | Shrink-swell |0.50 | Shrink-swell |0.50

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4761: | | | | | |

 Franklin------------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone | | saturated zone |

 | Shrink-swell |0.68 | | | Shrink-swell |0.68

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4771B: | | | | | |

 Waubeek-------------|Somewhat limited | |Somewhat limited | |Somewhat limited |

 | Shrink-swell |0.18 | Depth to |0.61 | Shrink-swell |0.18

 | | | saturated zone | | |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4771D: | | | | | |

 Waubeek-------------|Somewhat limited | |Somewhat limited | |Very limited |

 | Shrink-swell |0.18 | Depth to |0.61 | Slope |1.00

 | Slope |0.04 | saturated zone | | Shrink-swell |0.18

 | | | Slope |0.04 | |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4798: | | | | | |

 Protivin------------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone | | saturated zone |

 | Shrink-swell |0.32 | Shrink-swell |0.32 | Shrink-swell |0.32

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4911B: | | | | | |

 Colo----------------|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 |

 | Shrink-swell |0.50 | Shrink-swell |0.50 | Shrink-swell |0.50

 | | | | | |

 Ely-----------------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone | | saturated zone |

 | Shrink-swell |0.01 | Shrink-swell |0.50 | Shrink-swell |0.01

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |
256 Soil Survey of

Table 13a.--Building Site Development--Continued

___________________________________________________________________________________________________

 | | |

 Map symbol | Dwellings without | Dwellings with | Small commercial

 and soil name | basements | basements | buildings

 | | | _____________________________________________________________________________

 | Rating class and |Value| Rating class and |Value| Rating class and |Value

 | limiting features | | limiting features | | limiting features | ___________________________________________________________________________________________________

 | | | | | |

4933: | | | | | |

 Sawmill, | | | | | |

 occasionally | | | | | |

 flooded------------|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 |

 | Shrink-swell |0.50 | Shrink-swell |0.32 | Shrink-swell |0.50

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4946: | | | | | |

 Orthents, loamy-----|Not rated | |Not rated | |Not rated |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

5010: | | | | | |

 Pits, sand and | | | | | |

 gravel-------------|Not rated | |Not rated | |Not rated |

 | | | | | |

5030: | | | | | |

 Pits, limestone | | | | | |

 quarries-----------|Not rated | |Not rated | |Not rated |

 | | | | | |

5040: | | | | | |

 Orthents, loamy-----|Not rated | |Not rated | |Not rated |

 | | | | | |

5053: | | | | | |

 Psammaquents, | | | | | |

 frequently flooded |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 |

 | | | | | |

5080: | | | | | |

 Orthents, sanitary | | | | | |

 landfill-----------|Not rated | |Not rated | |Not rated |

 | | | | | |

AW: | | | | | |

 Animal waste--------|Not rated | |Not rated | |Not rated |

 | | | | | |

SL: | | | | | |

 Sewage lagoon-------|Not rated | |Not rated | |Not rated |

 | | | | | |

W: | | | | | |

 Water---------------|Not rated | |Not rated | |Not rated |

 | | | | | | ___________________________________________________________________________________________________
Black Hawk County, Iowa 257

Table 13b.--Building Site Development

(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. "Not rated" indicates that data are not

 available or that no rating is applicable. See text for further explanation of ratings in

 this table)

___________________________________________________________________________________________________

 | | |

 Map symbol | Local roads and | Shallow excavations | Lawns and landscaping

 and soil name | streets | |

 | | | _____________________________________________________________________________

 | Rating class and |Value| Rating class and |Value| Rating class and |Value

 | limiting features | | limiting features | | limiting features | ___________________________________________________________________________________________________

 | | | | | |

7: | | | | | |

 Wiota---------------|Very limited | |Very limited | |Not limited |

 | Frost action |1.00 | Cutbanks cave |1.00 | |

 | Low strength |1.00 | | | |

 | Shrink-swell |0.06 | | | |

 | | | | | |

41: | | | | | |

 Sparta--------------|Not limited | |Very limited | |Somewhat limited |

 | | | Cutbanks cave |1.00 | Droughty |0.12

 | | | | | |

41B: | | | | | |

 Sparta--------------|Not limited | |Very limited | |Somewhat limited |

 | | | Cutbanks cave |1.00 | Droughty |0.12

 | | | | | |

41C: | | | | | |

 Sparta--------------|Not limited | |Very limited | |Somewhat limited |

 | | | Cutbanks cave |1.00 | Droughty |0.15

 | | | | | |

41D: | | | | | |

 Sparta--------------|Somewhat limited | |Very limited | |Somewhat limited |

 | Slope |0.63 | Cutbanks cave |1.00 | Slope |0.63

 | | | Slope |0.63 | Droughty |0.17

 | | | | | |

63B: | | | | | |

 Chelsea-------------|Not limited | |Very limited | |Somewhat limited |

 | | | Cutbanks cave |1.00 | Droughty |0.28

 | | | | | |

63C: | | | | | |

 Chelsea-------------|Not limited | |Very limited | |Somewhat limited |

 | | | Cutbanks cave |1.00 | Droughty |0.28

 | | | | | |

63D: | | | | | |

 Chelsea-------------|Somewhat limited | |Very limited | |Somewhat limited |

 | Slope |0.63 | Cutbanks cave |1.00 | Slope |0.63

 | | | Slope |0.63 | Droughty |0.28

 | | | | | |

83B: | | | | | |

 Kenyon--------------|Somewhat limited | |Somewhat limited | |Not limited |

 | Frost action |0.50 | Depth to |0.61 | |

 | Low strength |0.22 | saturated zone | | |

 | | | Cutbanks cave |0.10 | |

 | | | | | |

83C: | | | | | |

 Kenyon--------------|Somewhat limited | |Somewhat limited | |Not limited |

 | Frost action |0.50 | Depth to |0.61 | |

 | Low strength |0.22 | saturated zone | | |

 | | | Cutbanks cave |0.10 | |

 | | | | | |

83C2: | | | | | |

 Kenyon, moderately | | | | | |

 eroded-------------|Somewhat limited | |Somewhat limited | |Not limited |

 | Frost action |0.50 | Depth to |0.61 | |

 | Low strength |0.22 | saturated zone | | |

 | | | Cutbanks cave |0.10 | |

 | | | | | |
258 Soil Survey of

Table 13b.--Building Site Development--Continued

___________________________________________________________________________________________________

 | | |

 Map symbol | Local roads and | Shallow excavations | Lawns and landscaping

 and soil name | streets | |

 | | | _____________________________________________________________________________

 | Rating class and |Value| Rating class and |Value| Rating class and |Value

 | limiting features | | limiting features | | limiting features | ___________________________________________________________________________________________________

 | | | | | |

83D2: | | | | | |

 Kenyon, moderately | | | | | |

 eroded-------------|Somewhat limited | |Somewhat limited | |Somewhat limited |

 | Slope |0.63 | Slope |0.63 | Slope |0.63

 | Frost action |0.50 | Depth to |0.61 | |

 | Low strength |0.22 | saturated zone | | |

 | | | Cutbanks cave |0.10 | |

 | | | | | |

84: | | | | | |

 Clyde---------------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone | | saturated zone |

 | Frost action |1.00 | Cutbanks cave |0.10 | |

 | Low strength |0.78 | | | |

 | Shrink-swell |0.18 | | | |

 | | | | | |

88: | | | | | |

 Nevin---------------|Very limited | |Very limited | |Very limited |

 | Low strength |1.00 | Cutbanks cave |1.00 | Depth to |1.00

 | Depth to |1.00 | Depth to |1.00 | saturated zone |

 | saturated zone | | saturated zone | | |

 | Frost action |1.00 | | | |

 | Flooding |0.40 | | | |

 | Shrink-swell |0.06 | | | |

 | | | | | |

133: | | | | | |

 Colo, occasionally | | | | | |

 flooded------------|Very limited | |Very limited | |Very limited |

 | Low strength |1.00 | Depth to |1.00 | Depth to |1.00

 | Depth to |1.00 | saturated zone | | saturated zone |

 | saturated zone | | Flooding |0.60 | Flooding |0.60

 | Frost action |1.00 | Cutbanks cave |0.10 | |

 | Flooding |1.00 | | | |

 | Shrink-swell |0.50 | | | |

 | | | | | |

135: | | | | | |

 Coland, occasionally| | | | | |

 flooded------------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone | | saturated zone |

 | Frost action |1.00 | Flooding |0.60 | Flooding |0.60

 | Flooding |1.00 | Cutbanks cave |0.10 | |

 | Low strength |1.00 | | | |

 | Shrink-swell |0.50 | | | |

 | | | | | |

159: | | | | | |

 Finchford-----------|Not limited | |Very limited | |Somewhat limited |

 | | | Cutbanks cave |1.00 | Droughty |0.60

 | | | | | |

159C: | | | | | |

 Finchford-----------|Not limited | |Very limited | |Somewhat limited |

 | | | Cutbanks cave |1.00 | Droughty |0.80

 | | | | | |

171B: | | | | | |

 Bassett-------------|Somewhat limited | |Very limited | |Somewhat limited |

 | Frost action |0.50 | Depth to |1.00 | Depth to |0.19

 | Low strength |0.22 | saturated zone | | saturated zone |

 | Depth to |0.19 | Cutbanks cave |0.10 | |

 | saturated zone | | | | |

 | | | | | |
Black Hawk County, Iowa 259

Table 13b.--Building Site Development--Continued

___________________________________________________________________________________________________

 | | |

 Map symbol | Local roads and | Shallow excavations | Lawns and landscaping

 and soil name | streets | |

 | | | _____________________________________________________________________________

 | Rating class and |Value| Rating class and |Value| Rating class and |Value

 | limiting features | | limiting features | | limiting features | ___________________________________________________________________________________________________

 | | | | | |

175: | | | | | |

 Dickinson-----------|Somewhat limited | |Very limited | |Not limited |

 | Frost action |0.50 | Cutbanks cave |1.00 | |

 | | | | | |

175B: | | | | | |

 Dickinson-----------|Somewhat limited | |Very limited | |Not limited |

 | Frost action |0.50 | Cutbanks cave |1.00 | |

 | | | | | |

177: | | | | | |

 Saude---------------|Not limited | |Very limited | |Not limited |

 | | | Cutbanks cave |1.00 | |

 | | | | | |

177B: | | | | | |

 Saude---------------|Not limited | |Very limited | |Not limited |

 | | | Cutbanks cave |1.00 | |

 | | | | | |

178: | | | | | |

 Waukee--------------|Not limited | |Very limited | |Not limited |

 | | | Cutbanks cave |1.00 | |

 | | | | | |

178B: | | | | | |

 Waukee--------------|Not limited | |Very limited | |Not limited |

 | | | Cutbanks cave |1.00 | |

 | | | | | |

184: | | | | | |

 Klinger-------------|Very limited | |Very limited | |Very limited |

 | Low strength |1.00 | Depth to |1.00 | Depth to |1.00

 | Depth to |1.00 | saturated zone | | saturated zone |

 | saturated zone | | Cutbanks cave |0.10 | |

 | Frost action |1.00 | | | |

 | Shrink-swell |0.32 | | | |

 | | | | | |

198B: | | | | | |

 Floyd---------------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone | | saturated zone |

 | Frost action |1.00 | Cutbanks cave |0.10 | |

 | | | | | |

213B: | | | | | |

 Rockton, 30 to 40 | | | | | |

 inches to limestone|Somewhat limited | |Very limited | |Somewhat limited |

 | Frost action |0.50 | Depth to hard |1.00 | Depth to bedrock |0.10

 | Shrink-swell |0.32 | bedrock | | |

 | Low strength |0.22 | Too clayey |0.32 | |

 | Depth to hard |0.10 | Cutbanks cave |0.10 | |

 | bedrock | | | | |

 | | | | | |

221: | | | | | |

 Klossner------------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone | | saturated zone |

 | Subsidence |1.00 | Content of |1.00 | |

 | Frost action |1.00 | organic matter | | |

 | | | Cutbanks cave |0.10 | |

 | | | | | |

284: | | | | | |

 Flagler-------------|Not limited | |Very limited | |Not limited |

 | | | Cutbanks cave |1.00 | |

 | | | | | |
260 Soil Survey of

Table 13b.--Building Site Development--Continued

___________________________________________________________________________________________________

 | | |

 Map symbol | Local roads and | Shallow excavations | Lawns and landscaping

 and soil name | streets | |

 | | | _____________________________________________________________________________

 | Rating class and |Value| Rating class and |Value| Rating class and |Value

 | limiting features | | limiting features | | limiting features | ___________________________________________________________________________________________________

 | | | | | |

284B: | | | | | |

 Flagler-------------|Not limited | |Very limited | |Not limited |

 | | | Cutbanks cave |1.00 | |

 | | | | | |

290: | | | | | |

 Dells---------------|Very limited | |Very limited | |Very limited |

 | Low strength |1.00 | Cutbanks cave |1.00 | Depth to |1.00

 | Depth to |1.00 | Depth to |1.00 | saturated zone |

 | saturated zone | | saturated zone | | |

 | Frost action |1.00 | | | |

 | Shrink-swell |0.18 | | | |

 | | | | | |

354: | | | | | |

 Aquolls, ponded-----|Not rated | |Very limited | |Not rated |

 | | | Ponding |1.00 | |

 | | | Depth to |1.00 | |

 | | | saturated zone | | |

 | | | Cutbanks cave |0.10 | |

 | | | | | |

377B: | | | | | |

 Dinsdale------------|Very limited | |Somewhat limited | |Not limited |

 | Low strength |1.00 | Depth to |0.61 | |

 | Frost action |1.00 | saturated zone | | |

 | Shrink-swell |0.68 | Cutbanks cave |0.10 | |

 | | | | | |

377C: | | | | | |

 Dinsdale------------|Very limited | |Somewhat limited | |Not limited |

 | Low strength |1.00 | Depth to |0.61 | |

 | Frost action |1.00 | saturated zone | | |

 | Shrink-swell |0.68 | Cutbanks cave |0.10 | |

 | | | | | |

377C2: | | | | | |

 Dinsdale, moderately| | | | | |

 eroded-------------|Very limited | |Somewhat limited | |Not limited |

 | Low strength |1.00 | Depth to |0.61 | |

 | Frost action |1.00 | saturated zone | | |

 | Shrink-swell |0.68 | Cutbanks cave |0.10 | |

 | | | | | |

382: | | | | | |

 Maxfield------------|Very limited | |Very limited | |Very limited |

 | Low strength |1.00 | Depth to |1.00 | Depth to |1.00

 | Depth to |1.00 | saturated zone | | saturated zone |

 | saturated zone | | Cutbanks cave |0.10 | |

 | Frost action |1.00 | | | |

 | | | | | |

391B: | | | | | |

 Clyde---------------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone | | saturated zone |

 | Frost action |1.00 | Cutbanks cave |0.10 | |

 | Low strength |0.78 | | | |

 | Shrink-swell |0.18 | | | |

 | | | | | |

 Floyd---------------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone | | saturated zone |

 | Frost action |1.00 | Cutbanks cave |0.10 | |

 | | | | | |
Black Hawk County, Iowa 261

Table 13b.--Building Site Development--Continued

___________________________________________________________________________________________________

 | | |

 Map symbol | Local roads and | Shallow excavations | Lawns and landscaping

 and soil name | streets | |

 | | | _____________________________________________________________________________

 | Rating class and |Value| Rating class and |Value| Rating class and |Value

 | limiting features | | limiting features | | limiting features | ___________________________________________________________________________________________________

 | | | | | |

395B: | | | | | |

 Marquis-------------|Somewhat limited | |Very limited | |Somewhat limited |

 | Frost action |0.50 | Depth to |1.00 | Depth to |0.19

 | Depth to |0.19 | saturated zone | | saturated zone |

 | saturated zone | | Cutbanks cave |0.10 | |

 | | | | | |

398: | | | | | |

 Tripoli-------------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone | | saturated zone |

 | Frost action |1.00 | Cutbanks cave |0.10 | |

 | Low strength |0.22 | | | |

 | | | | | |

399: | | | | | |

 Readlyn-------------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone | | saturated zone |

 | Frost action |1.00 | Cutbanks cave |0.10 | |

 | | | | | |

408B: | | | | | |

 Olin----------------|Somewhat limited | |Somewhat limited | |Not limited |

 | Frost action |0.50 | Cutbanks cave |0.10 | |

 | | | | | |

408C: | | | | | |

 Olin----------------|Somewhat limited | |Somewhat limited | |Not limited |

 | Frost action |0.50 | Cutbanks cave |0.10 | |

 | | | | | |

412C: | | | | | |

 Emeline-------------|Very limited | |Very limited | |Very limited |

 | Depth to hard |1.00 | Depth to hard |1.00 | Depth to bedrock |1.00

 | bedrock | | bedrock | | Droughty |1.00

 | Low strength |1.00 | Cutbanks cave |0.10 | Content of large |0.01

 | Frost action |0.50 | | | stones |

 | | | | | |

426B: | | | | | |

 Aredale-------------|Somewhat limited | |Somewhat limited | |Not limited |

 | Frost action |0.50 | Cutbanks cave |0.10 | |

 | Low strength |0.22 | | | |

 | | | | | |

426C: | | | | | |

 Aredale-------------|Somewhat limited | |Somewhat limited | |Not limited |

 | Frost action |0.50 | Cutbanks cave |0.10 | |

 | Low strength |0.22 | | | |

 | | | | | |

426C2: | | | | | |

 Aredale, moderately | | | | | |

 eroded-------------|Somewhat limited | |Somewhat limited | |Not limited |

 | Frost action |0.50 | Cutbanks cave |0.10 | |

 | Low strength |0.22 | | | |

 | | | | | |

468B: | | | | | |

 Dunkerton-----------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone | | saturated zone |

 | Frost action |0.50 | Cutbanks cave |0.10 | |

 | Shrink-swell |0.06 | | | |

 | | | | | |
262 Soil Survey of

Table 13b.--Building Site Development--Continued

___________________________________________________________________________________________________

 | | |

 Map symbol | Local roads and | Shallow excavations | Lawns and landscaping

 and soil name | streets | |

 | | | _____________________________________________________________________________

 | Rating class and |Value| Rating class and |Value| Rating class and |Value

 | limiting features | | limiting features | | limiting features | ___________________________________________________________________________________________________

 | | | | | |

468C: | | | | | |

 Dunkerton-----------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone | | saturated zone |

 | Frost action |0.50 | Cutbanks cave |0.10 | |

 | Shrink-swell |0.06 | | | |

 | | | | | |

471: | | | | | |

 Oran----------------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone | | saturated zone |

 | Frost action |1.00 | Cutbanks cave |0.10 | |

 | Low strength |0.22 | | | |

 | | | | | |

485: | | | | | |

 Spillville, | | | | | |

 occasionally | | | | | |

 flooded------------|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 |0.60 | Flooding |0.60

 | Low strength |1.00 | Cutbanks cave |0.10 | |

 | Frost action |0.50 | | | |

 | | | | | |

585: | | | | | |

 Spillville, | | | | | |

 occasionally | | | | | |

 flooded------------|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 |0.60 | Flooding |0.60

 | Low strength |1.00 | Cutbanks cave |0.10 | |

 | Frost action |0.50 | | | |

 | | | | | |

 Coland, occasionally| | | | | |

 flooded------------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone | | saturated zone |

 | Frost action |1.00 | Flooding |0.60 | Flooding |0.60

 | Flooding |1.00 | Cutbanks cave |0.10 | |

 | Low strength |1.00 | | | |

 | Shrink-swell |0.50 | | | |

 | | | | | |

626: | | | | | |

 Hayfield, 24 to 40 | | | | | |

 inches to sand and | | | | | |

 gravel-------------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Cutbanks cave |1.00 | Depth to |1.00

 | saturated zone | | Depth to |1.00 | saturated zone |

 | Frost action |1.00 | saturated zone | | |

 | | | | | |

761: | | | | | |

 Franklin------------|Very limited | |Very limited | |Very limited |

 | Low strength |1.00 | Depth to |1.00 | Depth to |1.00

 | Depth to |1.00 | saturated zone | | saturated zone |

 | saturated zone | | Cutbanks cave |0.10 | |

 | Frost action |1.00 | | | |

 | Shrink-swell |0.68 | | | |

 | | | | | |
Black Hawk County, Iowa 263

Table 13b.--Building Site Development--Continued

___________________________________________________________________________________________________

 | | |

 Map symbol | Local roads and | Shallow excavations | Lawns and landscaping

 and soil name | streets | |

 | | | _____________________________________________________________________________

 | Rating class and |Value| Rating class and |Value| Rating class and |Value

 | limiting features | | limiting features | | limiting features | ___________________________________________________________________________________________________

 | | | | | |

771B: | | | | | |

 Waubeek-------------|Very limited | |Somewhat limited | |Not limited |

 | Low strength |1.00 | Depth to |0.61 | |

 | Frost action |1.00 | saturated zone | | |

 | Shrink-swell |0.18 | Cutbanks cave |0.10 | |

 | | | | | |

775B: | | | | | |

 Billett-------------|Somewhat limited | |Very limited | |Not limited |

 | Frost action |0.50 | Cutbanks cave |1.00 | |

 | | | | | |

776C: | | | | | |

 Lilah---------------|Not limited | |Very limited | |Somewhat limited |

 | | | Cutbanks cave |1.00 | Droughty |0.89

 | | | | | |

777: | | | | | |

 Wapsie--------------|Not limited | |Very limited | |Not limited |

 | | | Cutbanks cave |1.00 | |

 | | | | | |

781B: | | | | | |

 Lourdes-------------|Very limited | |Somewhat limited | |Not limited |

 | Frost action |1.00 | Depth to |0.61 | |

 | Low strength |1.00 | saturated zone | | |

 | Shrink-swell |0.32 | Cutbanks cave |0.10 | |

 | | | | | |

781C2: | | | | | |

 Lourdes, moderately | | | | | |

 eroded-------------|Very limited | |Somewhat limited | |Not limited |

 | Frost action |1.00 | Depth to |0.61 | |

 | Low strength |1.00 | saturated zone | | |

 | Shrink-swell |0.32 | Cutbanks cave |0.10 | |

 | | | | | |

782B: | | | | | |

 Donnan--------------|Very limited | |Very limited | |Very limited |

 | Low strength |1.00 | Depth to |1.00 | Depth to |1.00

 | Shrink-swell |1.00 | saturated zone | | saturated zone |

 | Depth to |1.00 | Too clayey |0.41 | |

 | saturated zone | | Cutbanks cave |0.10 | |

 | Frost action |1.00 | | | |

 | | | | | |

798: | | | | | |

 Protivin------------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone | | saturated zone |

 | Frost action |1.00 | Cutbanks cave |0.10 | |

 | Low strength |1.00 | | | |

 | Shrink-swell |0.32 | | | |

 | | | | | |

809B: | | | | | |

 Bertram-------------|Somewhat limited | |Very limited | |Somewhat limited |

 | Frost action |0.50 | Cutbanks cave |1.00 | Depth to bedrock |0.46

 | Depth to hard |0.46 | Depth to hard |1.00 | Droughty |0.02

 | bedrock | | bedrock | | |

 | | | | | |

877B: | | | | | |

 Dinsmore------------|Very limited | |Somewhat limited | |Not limited |

 | Low strength |1.00 | Depth to |0.61 | |

 | Frost action |1.00 | saturated zone | | |

 | Shrink-swell |0.50 | Cutbanks cave |0.10 | |

 | | | | | |
264 Soil Survey of

Table 13b.--Building Site Development--Continued

___________________________________________________________________________________________________

 | | |

 Map symbol | Local roads and | Shallow excavations | Lawns and landscaping

 and soil name | streets | |

 | | | _____________________________________________________________________________

 | Rating class and |Value| Rating class and |Value| Rating class and |Value

 | limiting features | | limiting features | | limiting features | ___________________________________________________________________________________________________

 | | | | | |

884: | | | | | |

 Klingmore-----------|Very limited | |Very limited | |Very limited |

 | Low strength |1.00 | Depth to |1.00 | Depth to |1.00

 | Depth to |1.00 | saturated zone | | saturated zone |

 | saturated zone | | Cutbanks cave |0.10 | |

 | Frost action |1.00 | | | |

 | Shrink-swell |0.50 | | | |

 | | | | | |

911B: | | | | | |

 Colo----------------|Very limited | |Very limited | |Very limited |

 | Low strength |1.00 | Depth to |1.00 | Depth to |1.00

 | Depth to |1.00 | saturated zone | | saturated zone |

 | saturated zone | | Cutbanks cave |0.10 | |

 | Frost action |1.00 | | | |

 | Shrink-swell |0.50 | | | |

 | | | | | |

 Ely-----------------|Very limited | |Very limited | |Very limited |

 | Low strength |1.00 | Depth to |1.00 | Depth to |1.00

 | Depth to |1.00 | saturated zone | | saturated zone |

 | saturated zone | | Cutbanks cave |0.10 | |

 | Frost action |1.00 | | | |

 | Shrink-swell |0.01 | | | |

 | | | | | |

933: | | | | | |

 Sawmill, | | | | | |

 occasionally | | | | | |

 flooded------------|Very limited | |Very limited | |Very limited |

 | Low strength |1.00 | Depth to |1.00 | Depth to |1.00

 | Depth to |1.00 | saturated zone | | saturated zone |

 | saturated zone | | Flooding |0.60 | Flooding |0.60

 | Frost action |1.00 | Cutbanks cave |0.10 | |

 | Flooding |1.00 | | | |

 | Shrink-swell |0.50 | | | |

 | | | | | |

982: | | | | | |

 Maxmore-------------|Very limited | |Very limited | |Very limited |

 | Low strength |1.00 | Depth to |1.00 | Depth to |1.00

 | Depth to |1.00 | saturated zone | | saturated zone |

 | saturated zone | | Cutbanks cave |0.10 | |

 | Frost action |1.00 | | | |

 | Shrink-swell |0.68 | | | |

 | | | | | |

1152: | | | | | |

 Marshan, 24 to 40 | | | | | |

 inches to sand and | | | | | |

 gravel-------------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Cutbanks cave |1.00 | Depth to |1.00

 | saturated zone | | Depth to |1.00 | saturated zone |

 | Frost action |1.00 | saturated zone | | |

 | | | | | |

1226: | | | | | |

 Lawler, 24 to 40 | | | | | |

 inches to sand and | | | | | |

 gravel-------------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Cutbanks cave |1.00 | Depth to |1.00

 | saturated zone | | Depth to |1.00 | saturated zone |

 | Frost action |1.00 | saturated zone | | |

 | | | | | |
Black Hawk County, Iowa 265

Table 13b.--Building Site Development--Continued

___________________________________________________________________________________________________

 | | |

 Map symbol | Local roads and | Shallow excavations | Lawns and landscaping

 and soil name | streets | |

 | | | _____________________________________________________________________________

 | Rating class and |Value| Rating class and |Value| Rating class and |Value

 | limiting features | | limiting features | | limiting features | ___________________________________________________________________________________________________

 | | | | | |

1285G: | | | | | |

 Burkhardt-----------|Very limited | |Very limited | |Very limited |

 | Slope |1.00 | Cutbanks cave |1.00 | Slope |1.00

 | | | Slope |1.00 | Droughty |0.14

 | | | | | |

 Bassett-------------|Very limited | |Very limited | |Very limited |

 | Slope |1.00 | Slope |1.00 | Slope |1.00

 | Low strength |0.22 | Depth to |1.00 | Depth to |0.19

 | Depth to |0.19 | saturated zone | | saturated zone |

 | saturated zone | | Cutbanks cave |0.10 | |

 | | | | | |

 Chelsea-------------|Very limited | |Very limited | |Very limited |

 | Slope |1.00 | Cutbanks cave |1.00 | Slope |1.00

 | | | Slope |1.00 | Droughty |0.48

 | | | | | |

1585: | | | | | |

 Spillville, | | | | | |

 frequently flooded |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 |1.00 | Flooding |0.80 | saturated zone |

 | Low strength |1.00 | Cutbanks cave |0.10 | |

 | Frost action |0.50 | | | |

 | | | | | |

 Coland, frequently | | | | | |

 flooded------------|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

 | Frost action |1.00 | Flooding |0.80 | saturated zone |

 | Flooding |1.00 | Cutbanks cave |0.10 | |

 | Low strength |1.00 | | | |

 | Shrink-swell |0.50 | | | |

 | | | | | |

 Aquolls, ponded-----|Not rated | |Very limited | |Not rated |

 | | | Ponding |1.00 | |

 | | | Depth to |1.00 | |

 | | | saturated zone | | |

 | | | Cutbanks cave |0.10 | |

 | | | | | |

1586: | | | | | |

 Sigglekov, | | | | | |

 frequently flooded |Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Cutbanks cave |1.00 | Flooding |1.00

 | saturated zone | | Depth to |1.00 | Depth to |1.00

 | Flooding |1.00 | saturated zone | | saturated zone |

 | | | Flooding |0.80 | Droughty |0.98

 | | | | | |

 Fluvaquents, | | | | | |

 frequently flooded |Not rated | |Very limited | |Not rated |

 | | | Depth to |1.00 | |

 | | | saturated zone | | |

 | | | Flooding |0.80 | |

 | | | Cutbanks cave |0.10 | |

 | | | | | |

 Aquents, ponded-----|Not rated | |Very limited | |Not rated |

 | | | Ponding |1.00 | |

 | | | Depth to |1.00 | |

 | | | saturated zone | | |

 | | | Cutbanks cave |0.10 | |

 | | | | | |
266 Soil Survey of

Table 13b.--Building Site Development--Continued

___________________________________________________________________________________________________

 | | |

 Map symbol | Local roads and | Shallow excavations | Lawns and landscaping

 and soil name | streets | |

 | | | _____________________________________________________________________________

 | Rating class and |Value| Rating class and |Value| Rating class and |Value

 | limiting features | | limiting features | | limiting features | ___________________________________________________________________________________________________

 | | | | | |

4000: | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4007: | | | | | |

 Wiota---------------|Very limited | |Very limited | |Not limited |

 | Frost action |1.00 | Cutbanks cave |1.00 | |

 | Low strength |1.00 | | | |

 | Shrink-swell |0.06 | | | |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4041: | | | | | |

 Sparta--------------|Not limited | |Very limited | |Somewhat limited |

 | | | Cutbanks cave |1.00 | Droughty |0.12

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4041B: | | | | | |

 Sparta--------------|Not limited | |Very limited | |Somewhat limited |

 | | | Cutbanks cave |1.00 | Droughty |0.12

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4041C: | | | | | |

 Sparta--------------|Not limited | |Very limited | |Somewhat limited |

 | | | Cutbanks cave |1.00 | Droughty |0.15

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4041D: | | | | | |

 Sparta--------------|Somewhat limited | |Very limited | |Somewhat limited |

 | Slope |0.63 | Cutbanks cave |1.00 | Slope |0.63

 | | | Slope |0.63 | Droughty |0.17

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4063B: | | | | | |

 Chelsea-------------|Not limited | |Very limited | |Somewhat limited |

 | | | Cutbanks cave |1.00 | Droughty |0.28

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4063C: | | | | | |

 Chelsea-------------|Not limited | |Very limited | |Somewhat limited |

 | | | Cutbanks cave |1.00 | Droughty |0.28

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4063D: | | | | | |

 Chelsea-------------|Somewhat limited | |Very limited | |Somewhat limited |

 | Slope |0.63 | Cutbanks cave |1.00 | Slope |0.63

 | | | Slope |0.63 | Droughty |0.28

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4083B: | | | | | |

 Kenyon--------------|Somewhat limited | |Somewhat limited | |Not limited |

 | Frost action |0.50 | Depth to |0.61 | |

 | Low strength |0.22 | saturated zone | | |

 | | | Cutbanks cave |0.10 | |

 | | | | | |
Black Hawk County, Iowa 267

Table 13b.--Building Site Development--Continued

___________________________________________________________________________________________________

 | | |

 Map symbol | Local roads and | Shallow excavations | Lawns and landscaping

 and soil name | streets | |

 | | | _____________________________________________________________________________

 | Rating class and |Value| Rating class and |Value| Rating class and |Value

 | limiting features | | limiting features | | limiting features | ___________________________________________________________________________________________________

 | | | | | |

4083B: | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4083C: | | | | | |

 Kenyon--------------|Somewhat limited | |Somewhat limited | |Not limited |

 | Frost action |0.50 | Depth to |0.61 | |

 | Low strength |0.22 | saturated zone | | |

 | | | Cutbanks cave |0.10 | |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4083D: | | | | | |

 Kenyon--------------|Somewhat limited | |Somewhat limited | |Somewhat limited |

 | Slope |0.63 | Slope |0.63 | Slope |0.63

 | Frost action |0.50 | Depth to |0.61 | |

 | Low strength |0.22 | saturated zone | | |

 | | | Cutbanks cave |0.10 | |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4084: | | | | | |

 Clyde---------------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone | | saturated zone |

 | Frost action |1.00 | Cutbanks cave |0.10 | |

 | Low strength |0.78 | | | |

 | Shrink-swell |0.18 | | | |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4088: | | | | | |

 Nevin---------------|Very limited | |Very limited | |Very limited |

 | Low strength |1.00 | Cutbanks cave |1.00 | Depth to |1.00

 | Depth to |1.00 | Depth to |1.00 | saturated zone |

 | saturated zone | | saturated zone | | |

 | Frost action |1.00 | | | |

 | Flooding |0.40 | | | |

 | Shrink-swell |0.06 | | | |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4133: | | | | | |

 Colo, occasionally | | | | | |

 flooded------------|Very limited | |Very limited | |Very limited |

 | Low strength |1.00 | Depth to |1.00 | Depth to |1.00

 | Depth to |1.00 | saturated zone | | saturated zone |

 | saturated zone | | Flooding |0.60 | Flooding |0.60

 | Frost action |1.00 | Cutbanks cave |0.10 | |

 | Flooding |1.00 | | | |

 | Shrink-swell |0.50 | | | |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |
268 Soil Survey of

Table 13b.--Building Site Development--Continued

___________________________________________________________________________________________________

 | | |

 Map symbol | Local roads and | Shallow excavations | Lawns and landscaping

 and soil name | streets | |

 | | | _____________________________________________________________________________

 | Rating class and |Value| Rating class and |Value| Rating class and |Value

 | limiting features | | limiting features | | limiting features | ___________________________________________________________________________________________________

 | | | | | |

4135: | | | | | |

 Coland, occasionally| | | | | |

 flooded------------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone | | saturated zone |

 | Frost action |1.00 | Flooding |0.60 | Flooding |0.60

 | Flooding |1.00 | Cutbanks cave |0.10 | |

 | Low strength |1.00 | | | |

 | Shrink-swell |0.50 | | | |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4152: | | | | | |

 Marshan, 24 to 40 | | | | | |

 inches to sand and | | | | | |

 gravel-------------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Cutbanks cave |1.00 | Depth to |1.00

 | saturated zone | | Depth to |1.00 | saturated zone |

 | Frost action |1.00 | saturated zone | | |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4159: | | | | | |

 Finchford-----------|Not limited | |Very limited | |Somewhat limited |

 | | | Cutbanks cave |1.00 | Droughty |0.60

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4159C: | | | | | |

 Finchford-----------|Not limited | |Very limited | |Somewhat limited |

 | | | Cutbanks cave |1.00 | Droughty |0.80

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4171B: | | | | | |

 Bassett-------------|Somewhat limited | |Very limited | |Somewhat limited |

 | Frost action |0.50 | Depth to |1.00 | Depth to |0.19

 | Low strength |0.22 | saturated zone | | saturated zone |

 | Depth to |0.19 | Cutbanks cave |0.10 | |

 | saturated zone | | | | |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4171D: | | | | | |

 Bassett-------------|Somewhat limited | |Very limited | |Somewhat limited |

 | Slope |0.63 | Depth to |1.00 | Slope |0.63

 | Frost action |0.50 | saturated zone | | Depth to |0.19

 | Low strength |0.22 | Slope |0.63 | saturated zone |

 | Depth to |0.19 | Cutbanks cave |0.10 | |

 | saturated zone | | | | |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4175: | | | | | |

 Dickinson-----------|Somewhat limited | |Very limited | |Not limited |

 | Frost action |0.50 | Cutbanks cave |1.00 | |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |
Black Hawk County, Iowa 269

Table 13b.--Building Site Development--Continued

___________________________________________________________________________________________________

 | | |

 Map symbol | Local roads and | Shallow excavations | Lawns and landscaping

 and soil name | streets | |

 | | | _____________________________________________________________________________

 | Rating class and |Value| Rating class and |Value| Rating class and |Value

 | limiting features | | limiting features | | limiting features | ___________________________________________________________________________________________________

 | | | | | |

4175B: | | | | | |

 Dickinson-----------|Somewhat limited | |Very limited | |Not limited |

 | Frost action |0.50 | Cutbanks cave |1.00 | |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4177: | | | | | |

 Saude---------------|Not limited | |Very limited | |Not limited |

 | | | Cutbanks cave |1.00 | |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4177B: | | | | | |

 Saude---------------|Not limited | |Very limited | |Not limited |

 | | | Cutbanks cave |1.00 | |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4178: | | | | | |

 Waukee--------------|Not limited | |Very limited | |Not limited |

 | | | Cutbanks cave |1.00 | |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4184: | | | | | |

 Klinger-------------|Very limited | |Very limited | |Very limited |

 | Low strength |1.00 | Depth to |1.00 | Depth to |1.00

 | Depth to |1.00 | saturated zone | | saturated zone |

 | saturated zone | | Cutbanks cave |0.10 | |

 | Frost action |1.00 | | | |

 | Shrink-swell |0.32 | | | |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4198B: | | | | | |

 Floyd---------------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone | | saturated zone |

 | Frost action |1.00 | Cutbanks cave |0.10 | |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4226: | | | | | |

 Lawler, 24 to 40 | | | | | |

 inches to sand and | | | | | |

 gravel-------------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Cutbanks cave |1.00 | Depth to |1.00

 | saturated zone | | Depth to |1.00 | saturated zone |

 | Frost action |1.00 | saturated zone | | |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4284: | | | | | |

 Flagler-------------|Not limited | |Very limited | |Not limited |

 | | | Cutbanks cave |1.00 | |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |
270 Soil Survey of

Table 13b.--Building Site Development--Continued

___________________________________________________________________________________________________

 | | |

 Map symbol | Local roads and | Shallow excavations | Lawns and landscaping

 and soil name | streets | |

 | | | _____________________________________________________________________________

 | Rating class and |Value| Rating class and |Value| Rating class and |Value

 | limiting features | | limiting features | | limiting features | ___________________________________________________________________________________________________

 | | | | | |

4284B: | | | | | |

 Flagler-------------|Not limited | |Very limited | |Not limited |

 | | | Cutbanks cave |1.00 | |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4377B: | | | | | |

 Dinsdale------------|Very limited | |Somewhat limited | |Not limited |

 | Low strength |1.00 | Depth to |0.61 | |

 | Frost action |1.00 | saturated zone | | |

 | Shrink-swell |0.68 | Cutbanks cave |0.10 | |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4377C: | | | | | |

 Dinsdale------------|Very limited | |Somewhat limited | |Not limited |

 | Low strength |1.00 | Depth to |0.61 | |

 | Frost action |1.00 | saturated zone | | |

 | Shrink-swell |0.68 | Cutbanks cave |0.10 | |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4382: | | | | | |

 Maxfield------------|Very limited | |Very limited | |Very limited |

 | Low strength |1.00 | Depth to |1.00 | Depth to |1.00

 | Depth to |1.00 | saturated zone | | saturated zone |

 | saturated zone | | Cutbanks cave |0.10 | |

 | Frost action |1.00 | | | |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4391B: | | | | | |

 Clyde---------------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone | | saturated zone |

 | Frost action |1.00 | Cutbanks cave |0.10 | |

 | Low strength |0.78 | | | |

 | Shrink-swell |0.18 | | | |

 | | | | | |

 Floyd---------------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone | | saturated zone |

 | Frost action |1.00 | Cutbanks cave |0.10 | |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4398: | | | | | |

 Tripoli-------------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone | | saturated zone |

 | Frost action |1.00 | Cutbanks cave |0.10 | |

 | Low strength |0.22 | | | |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4399: | | | | | |

 Readlyn-------------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone | | saturated zone |

 | Frost action |1.00 | Cutbanks cave |0.10 | |

 | | | | | |
Black Hawk County, Iowa 271

Table 13b.--Building Site Development--Continued

___________________________________________________________________________________________________

 | | |

 Map symbol | Local roads and | Shallow excavations | Lawns and landscaping

 and soil name | streets | |

 | | | _____________________________________________________________________________

 | Rating class and |Value| Rating class and |Value| Rating class and |Value

 | limiting features | | limiting features | | limiting features | ___________________________________________________________________________________________________

 | | | | | |

4399: | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4408B: | | | | | |

 Olin----------------|Somewhat limited | |Somewhat limited | |Not limited |

 | Frost action |0.50 | Cutbanks cave |0.10 | |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4408C: | | | | | |

 Olin----------------|Somewhat limited | |Somewhat limited | |Not limited |

 | Frost action |0.50 | Cutbanks cave |0.10 | |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4426B: | | | | | |

 Aredale-------------|Somewhat limited | |Somewhat limited | |Not limited |

 | Frost action |0.50 | Cutbanks cave |0.10 | |

 | Low strength |0.22 | | | |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4426C: | | | | | |

 Aredale-------------|Somewhat limited | |Somewhat limited | |Not limited |

 | Frost action |0.50 | Cutbanks cave |0.10 | |

 | Low strength |0.22 | | | |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4585: | | | | | |

 Spillville, | | | | | |

 occasionally | | | | | |

 flooded------------|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 |0.60 | Flooding |0.60

 | Low strength |1.00 | Cutbanks cave |0.10 | |

 | Frost action |0.50 | | | |

 | | | | | |

 Coland, occasionally| | | | | |

 flooded------------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone | | saturated zone |

 | Frost action |1.00 | Flooding |0.60 | Flooding |0.60

 | Flooding |1.00 | Cutbanks cave |0.10 | |

 | Low strength |1.00 | | | |

 | Shrink-swell |0.50 | | | |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4761: | | | | | |

 Franklin------------|Very limited | |Very limited | |Very limited |

 | Low strength |1.00 | Depth to |1.00 | Depth to |1.00

 | Depth to |1.00 | saturated zone | | saturated zone |

 | saturated zone | | Cutbanks cave |0.10 | |

 | Frost action |1.00 | | | |

 | Shrink-swell |0.68 | | | |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |
272 Soil Survey of

Table 13b.--Building Site Development--Continued

___________________________________________________________________________________________________

 | | |

 Map symbol | Local roads and | Shallow excavations | Lawns and landscaping

 and soil name | streets | |

 | | | _____________________________________________________________________________

 | Rating class and |Value| Rating class and |Value| Rating class and |Value

 | limiting features | | limiting features | | limiting features | ___________________________________________________________________________________________________

 | | | | | |

4771B: | | | | | |

 Waubeek-------------|Very limited | |Somewhat limited | |Not limited |

 | Low strength |1.00 | Depth to |0.61 | |

 | Frost action |1.00 | saturated zone | | |

 | Shrink-swell |0.18 | Cutbanks cave |0.10 | |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4771D: | | | | | |

 Waubeek-------------|Very limited | |Somewhat limited | |Somewhat limited |

 | Low strength |1.00 | Depth to |0.61 | Slope |0.04

 | Frost action |1.00 | saturated zone | | |

 | Shrink-swell |0.18 | Cutbanks cave |0.10 | |

 | Slope |0.04 | Slope |0.04 | |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4798: | | | | | |

 Protivin------------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone | | saturated zone |

 | Frost action |1.00 | Cutbanks cave |0.10 | |

 | Low strength |1.00 | | | |

 | Shrink-swell |0.32 | | | |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4911B: | | | | | |

 Colo----------------|Very limited | |Very limited | |Very limited |

 | Low strength |1.00 | Depth to |1.00 | Flooding |1.00

 | Depth to |1.00 | saturated zone | | Depth to |1.00

 | saturated zone | | Flooding |0.80 | saturated zone |

 | Frost action |1.00 | Cutbanks cave |0.10 | |

 | Flooding |1.00 | | | |

 | Shrink-swell |0.50 | | | |

 | | | | | |

 Ely-----------------|Very limited | |Very limited | |Very limited |

 | Low strength |1.00 | Depth to |1.00 | Depth to |1.00

 | Depth to |1.00 | saturated zone | | saturated zone |

 | saturated zone | | Cutbanks cave |0.10 | |

 | Frost action |1.00 | | | |

 | Shrink-swell |0.01 | | | |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4933: | | | | | |

 Sawmill, | | | | | |

 occasionally | | | | | |

 flooded------------|Very limited | |Very limited | |Very limited |

 | Low strength |1.00 | Depth to |1.00 | Depth to |1.00

 | Depth to |1.00 | saturated zone | | saturated zone |

 | saturated zone | | Flooding |0.60 | Flooding |0.60

 | Frost action |1.00 | Cutbanks cave |0.10 | |

 | Flooding |1.00 | | | |

 | Shrink-swell |0.50 | | | |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |
Black Hawk County, Iowa 273

Table 13b.--Building Site Development--Continued

___________________________________________________________________________________________________

 | | |

 Map symbol | Local roads and | Shallow excavations | Lawns and landscaping

 and soil name | streets | |

 | | | _____________________________________________________________________________

 | Rating class and |Value| Rating class and |Value| Rating class and |Value

 | limiting features | | limiting features | | limiting features | ___________________________________________________________________________________________________

 | | | | | |

4946: | | | | | |

 Orthents, loamy-----|Not rated | |Not rated | |Not rated |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

5010: | | | | | |

 Pits, sand and | | | | | |

 gravel-------------|Not rated | |Not rated | |Not rated |

 | | | | | |

5030: | | | | | |

 Pits, limestone | | | | | |

 quarries-----------|Not rated | |Not rated | |Not rated |

 | | | | | |

5040: | | | | | |

 Orthents, loamy-----|Not rated | |Not rated | |Not rated |

 | | | | | |

5053: | | | | | |

 Psammaquents, | | | | | |

 frequently flooded |Not rated | |Very limited | |Not rated |

 | | | Depth to |1.00 | |

 | | | saturated zone | | |

 | | | Flooding |0.80 | |

 | | | Cutbanks cave |0.10 | |

 | | | | | |

5080: | | | | | |

 Orthents, sanitary | | | | | |

 landfill-----------|Not rated | |Not rated | |Not rated |

 | | | | | |

AW: | | | | | |

 Animal waste--------|Not rated | |Not rated | |Not rated |

 | | | | | |

SL: | | | | | |

 Sewage lagoon-------|Not rated | |Not rated | |Not rated |

 | | | | | |

W: | | | | | |

 Water---------------|Not rated | |Not rated | |Not rated |

 | | | | | | ___________________________________________________________________________________________________
274 Soil Survey of

Table 14a.--Sanitary Facilities

(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. "Not rated" indicates that data are not

 available or that no rating is applicable. See text for further

 explanation of ratings in this table)

_________________________________________________________________________

 | |

 Map symbol | Septic tank | Sewage lagoons

 and soil name | absorption fields |

 | | ___________________________________________________

 | Rating class and |Value| Rating class and |Value

 | limiting features | | limiting features | _________________________________________________________________________

 | | | |

7: | | | |

 Wiota---------------|Very limited | |Very limited |

 | Filtering |1.00 | Seepage |1.00

 | capacity | | |

 | Restricted |0.25 | |

 | permeability | | |

 | | | |

41: | | | |

 Sparta--------------|Very limited | |Very limited |

 | Filtering |1.00 | Seepage |1.00

 | capacity | | |

 | | | |

41B: | | | |

 Sparta--------------|Very limited | |Very limited |

 | Filtering |1.00 | Seepage |1.00

 | capacity | | Slope |0.32

 | | | |

41C: | | | |

 Sparta--------------|Very limited | |Very limited |

 | Filtering |1.00 | Seepage |1.00

 | capacity | | Slope |1.00

 | | | |

41D: | | | |

 Sparta--------------|Very limited | |Very limited |

 | Filtering |1.00 | Slope |1.00

 | capacity | | Seepage |1.00

 | Slope |0.63 | |

 | | | |

63B: | | | |

 Chelsea-------------|Very limited | |Very limited |

 | Filtering |1.00 | Seepage |1.00

 | capacity | | Slope |0.32

 | | | |

63C: | | | |

 Chelsea-------------|Very limited | |Very limited |

 | Filtering |1.00 | Seepage |1.00

 | capacity | | Slope |1.00

 | | | |

63D: | | | |

 Chelsea-------------|Very limited | |Very limited |

 | Filtering |1.00 | Slope |1.00

 | capacity | | Seepage |1.00

 | Slope |0.63 | |

 | | | |

83B: | | | |

 Kenyon--------------|Very limited | |Somewhat limited |

 | Depth to |1.00 | Depth to |0.71

 | saturated zone | | saturated zone |

 | Restricted |0.25 | Seepage |0.50

 | permeability | | Slope |0.32

 | | | |
Black Hawk County, Iowa 275

Table 14a.--Sanitary Facilities--Continued

_________________________________________________________________________

 | |

 Map symbol | Septic tank | Sewage lagoons

 and soil name | absorption fields |

 | | ___________________________________________________

 | Rating class and |Value| Rating class and |Value

 | limiting features | | limiting features | _________________________________________________________________________

 | | | |

83C: | | | |

 Kenyon--------------|Very limited | |Very limited |

 | Depth to |1.00 | Slope |1.00

 | saturated zone | | Depth to |0.71

 | Restricted |0.25 | saturated zone |

 | permeability | | Seepage |0.50

 | | | |

83C2: | | | |

 Kenyon, moderately | | | |

 eroded-------------|Very limited | |Very limited |

 | Depth to |1.00 | Slope |1.00

 | saturated zone | | Depth to |0.71

 | Restricted |0.25 | saturated zone |

 | permeability | | Seepage |0.50

 | | | |

83D2: | | | |

 Kenyon, moderately | | | |

 eroded-------------|Very limited | |Very limited |

 | Depth to |1.00 | Slope |1.00

 | saturated zone | | Depth to |0.71

 | Slope |0.63 | saturated zone |

 | Restricted |0.25 | Seepage |0.50

 | permeability | | |

 | | | |

84: | | | |

 Clyde---------------|Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone |

 | Restricted |0.25 | Seepage |0.50

 | permeability | | |

 | | | |

88: | | | |

 Nevin---------------|Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone |

 | Flooding |0.40 | Seepage |0.50

 | Restricted |0.25 | Flooding |0.40

 | permeability | | |

 | | | |

133: | | | |

 Colo, occasionally | | | |

 flooded------------|Very limited | |Very limited |

 | Flooding |1.00 | Depth to |1.00

 | Depth to |1.00 | saturated zone |

 | saturated zone | | Flooding |1.00

 | Restricted |0.25 | Seepage |0.50

 | permeability | | |

 | | | |

135: | | | |

 Coland, occasionally| | | |

 flooded------------|Very limited | |Very limited |

 | Flooding |1.00 | Depth to |1.00

 | Depth to |1.00 | saturated zone |

 | saturated zone | | Flooding |1.00

 | Restricted |0.25 | Seepage |1.00

 | permeability | | |

 | | | |

159: | | | |

 Finchford-----------|Very limited | |Very limited |

 | Filtering |1.00 | Seepage |1.00

 | capacity | | |

 | | | |
276 Soil Survey of

Table 14a.--Sanitary Facilities--Continued

_________________________________________________________________________

 | |

 Map symbol | Septic tank | Sewage lagoons

 and soil name | absorption fields |

 | | ___________________________________________________

 | Rating class and |Value| Rating class and |Value

 | limiting features | | limiting features | _________________________________________________________________________

 | | | |

159C: | | | |

 Finchford-----------|Very limited | |Very limited |

 | Filtering |1.00 | Seepage |1.00

 | capacity | | Slope |0.92

 | | | |

171B: | | | |

 Bassett-------------|Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone |

 | Restricted |0.35 | Seepage |0.50

 | permeability | | Slope |0.32

 | | | |

175: | | | |

 Dickinson-----------|Very limited | |Very limited |

 | Filtering |1.00 | Seepage |1.00

 | capacity | | |

 | | | |

175B: | | | |

 Dickinson-----------|Very limited | |Very limited |

 | Filtering |1.00 | Seepage |1.00

 | capacity | | Slope |0.32

 | | | |

177: | | | |

 Saude---------------|Very limited | |Very limited |

 | Filtering |1.00 | Seepage |1.00

 | capacity | | |

 | | | |

177B: | | | |

 Saude---------------|Very limited | |Very limited |

 | Filtering |1.00 | Seepage |1.00

 | capacity | | Slope |0.32

 | | | |

178: | | | |

 Waukee--------------|Very limited | |Very limited |

 | Filtering |1.00 | Seepage |1.00

 | capacity | | |

 | Restricted |0.25 | |

 | permeability | | |

 | | | |

178B: | | | |

 Waukee--------------|Very limited | |Very limited |

 | Filtering |1.00 | Seepage |1.00

 | capacity | | Slope |0.32

 | Restricted |0.25 | |

 | permeability | | |

 | | | |

184: | | | |

 Klinger-------------|Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone |

 | Restricted |0.25 | Seepage |0.50

 | permeability | | |

 | | | |

198B: | | | |

 Floyd---------------|Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone |

 | Restricted |0.25 | Seepage |1.00

 | permeability | | Slope |0.08

 | | | |
Black Hawk County, Iowa 277

Table 14a.--Sanitary Facilities--Continued

_________________________________________________________________________

 | |

 Map symbol | Septic tank | Sewage lagoons

 and soil name | absorption fields |

 | | ___________________________________________________

 | Rating class and |Value| Rating class and |Value

 | limiting features | | limiting features | _________________________________________________________________________

 | | | |

213B: | | | |

 Rockton, 30 to 40 | | | |

 inches to limestone|Very limited | |Very limited |

 | Depth to bedrock |1.00 | Depth to hard |1.00

 | Restricted |0.25 | bedrock |

 | permeability | | Seepage |0.50

 | | | Slope |0.32

 | | | |

221: | | | |

 Klossner------------|Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone |

 | Subsidence |1.00 | Seepage |1.00

 | Restricted |0.25 | Content of |1.00

 | permeability | | organic matter |

 | | | |

284: | | | |

 Flagler-------------|Very limited | |Very limited |

 | Filtering |1.00 | Seepage |1.00

 | capacity | | |

 | | | |

284B: | | | |

 Flagler-------------|Very limited | |Very limited |

 | Filtering |1.00 | Seepage |1.00

 | capacity | | Slope |0.32

 | | | |

290: | | | |

 Dells---------------|Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone |

 | Filtering |1.00 | Seepage |1.00

 | capacity | | |

 | Restricted |0.35 | |

 | permeability | | |

 | | | |

354: | | | |

 Aquolls, ponded-----|Very limited | |Not rated |

 | Ponding |1.00 | |

 | Depth to |1.00 | |

 | saturated zone | | |

 | | | |

377B: | | | |

 Dinsdale------------|Very limited | |Somewhat limited |

 | Depth to |1.00 | Depth to |0.71

 | saturated zone | | saturated zone |

 | Restricted |0.25 | Seepage |0.50

 | permeability | | Slope |0.32

 | | | |

377C: | | | |

 Dinsdale------------|Very limited | |Very limited |

 | Depth to |1.00 | Slope |1.00

 | saturated zone | | Depth to |0.71

 | Restricted |0.25 | saturated zone |

 | permeability | | Seepage |0.50

 | | | |
278 Soil Survey of

Table 14a.--Sanitary Facilities--Continued

_________________________________________________________________________

 | |

 Map symbol | Septic tank | Sewage lagoons

 and soil name | absorption fields |

 | | ___________________________________________________

 | Rating class and |Value| Rating class and |Value

 | limiting features | | limiting features | _________________________________________________________________________

 | | | |

377C2: | | | |

 Dinsdale, moderately| | | |

 eroded-------------|Very limited | |Very limited |

 | Depth to |1.00 | Slope |1.00

 | saturated zone | | Depth to |0.71

 | Restricted |0.25 | saturated zone |

 | permeability | | Seepage |0.50

 | | | |

382: | | | |

 Maxfield------------|Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone |

 | Restricted |0.25 | Seepage |0.50

 | permeability | | |

 | | | |

391B: | | | |

 Clyde---------------|Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone |

 | Restricted |0.25 | Seepage |0.50

 | permeability | | |

 | | | |

 Floyd---------------|Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone |

 | Restricted |0.25 | Seepage |1.00

 | permeability | | Slope |0.08

 | | | |

395B: | | | |

 Marquis-------------|Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone |

 | Restricted |0.25 | Seepage |0.50

 | permeability | | Slope |0.32

 | | | |

398: | | | |

 Tripoli-------------|Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone |

 | Restricted |0.25 | Seepage |0.50

 | permeability | | |

 | | | |

399: | | | |

 Readlyn-------------|Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone |

 | Restricted |0.25 | Seepage |0.50

 | permeability | | |

 | | | |

408B: | | | |

 Olin----------------|Not limited | |Very limited |

 | Restricted |0.25 | Seepage |1.00

 | permeability | | Slope |0.32

 | | | |

408C: | | | |

 Olin----------------|Not limited | |Very limited |

 | Restricted |0.25 | Seepage |1.00

 | permeability | | Slope |1.00

 | | | |
Black Hawk County, Iowa 279

Table 14a.--Sanitary Facilities--Continued

_________________________________________________________________________

 | |

 Map symbol | Septic tank | Sewage lagoons

 and soil name | absorption fields |

 | | ___________________________________________________

 | Rating class and |Value| Rating class and |Value

 | limiting features | | limiting features | _________________________________________________________________________

 | | | |

412C: | | | |

 Emeline-------------|Very limited | |Very limited |

 | Depth to bedrock |1.00 | Depth to hard |1.00

 | | | bedrock |

 | | | Slope |0.92

 | | | |

426B: | | | |

 Aredale-------------|Somewhat limited | |Very limited |

 | Restricted |0.91 | Seepage |1.00

 | permeability | | Slope |0.32

 | | | |

426C: | | | |

 Aredale-------------|Somewhat limited | |Very limited |

 | Restricted |0.91 | Seepage |1.00

 | permeability | | Slope |1.00

 | | | |

426C2: | | | |

 Aredale, moderately | | | |

 eroded-------------|Somewhat limited | |Very limited |

 | Restricted |0.91 | Seepage |1.00

 | permeability | | Slope |1.00

 | | | |

468B: | | | |

 Dunkerton-----------|Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone |

 | Restricted |0.91 | Seepage |1.00

 | permeability | | Slope |0.32

 | | | |

468C: | | | |

 Dunkerton-----------|Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone |

 | Restricted |0.91 | Seepage |1.00

 | permeability | | Slope |1.00

 | | | |

471: | | | |

 Oran----------------|Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone |

 | Restricted |0.35 | Seepage |0.50

 | permeability | | |

 | | | |

485: | | | |

 Spillville, | | | |

 occasionally | | | |

 flooded------------|Very limited | |Very limited |

 | Flooding |1.00 | Depth to |1.00

 | Depth to |1.00 | saturated zone |

 | saturated zone | | Flooding |1.00

 | Restricted |0.25 | Seepage |1.00

 | permeability | | |

 | | | |
280 Soil Survey of

Table 14a.--Sanitary Facilities--Continued

_________________________________________________________________________

 | |

 Map symbol | Septic tank | Sewage lagoons

 and soil name | absorption fields |

 | | ___________________________________________________

 | Rating class and |Value| Rating class and |Value

 | limiting features | | limiting features | _________________________________________________________________________

 | | | |

585: | | | |

 Spillville, | | | |

 occasionally | | | |

 flooded------------|Very limited | |Very limited |

 | Flooding |1.00 | Depth to |1.00

 | Depth to |1.00 | saturated zone |

 | saturated zone | | Flooding |1.00

 | Restricted |0.25 | Seepage |1.00

 | permeability | | |

 | | | |

 Coland, occasionally| | | |

 flooded------------|Very limited | |Very limited |

 | Flooding |1.00 | Depth to |1.00

 | Depth to |1.00 | saturated zone |

 | saturated zone | | Flooding |1.00

 | Restricted |0.25 | Seepage |1.00

 | permeability | | |

 | | | |

626: | | | |

 Hayfield, 24 to 40 | | | |

 inches to sand and | | | |

 gravel-------------|Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone |

 | Filtering |1.00 | Seepage |1.00

 | capacity | | |

 | Restricted |0.35 | |

 | permeability | | |

 | | | |

761: | | | |

 Franklin------------|Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone |

 | Restricted |0.35 | Seepage |0.50

 | permeability | | |

 | | | |

771B: | | | |

 Waubeek-------------|Very limited | |Somewhat limited |

 | Depth to |1.00 | Depth to |0.71

 | saturated zone | | saturated zone |

 | Restricted |0.35 | Seepage |0.50

 | permeability | | Slope |0.32

 | | | |

775B: | | | |

 Billett-------------|Very limited | |Very limited |

 | Filtering |1.00 | Seepage |1.00

 | capacity | | Slope |0.32

 | | | |

776C: | | | |

 Lilah---------------|Very limited | |Very limited |

 | Filtering |1.00 | Seepage |1.00

 | capacity | | Slope |0.92

 | | | |

777: | | | |

 Wapsie--------------|Very limited | |Very limited |

 | Filtering |1.00 | Seepage |1.00

 | capacity | | |

 | Restricted |0.35 | |

 | permeability | | |

 | | | |
Black Hawk County, Iowa 281

Table 14a.--Sanitary Facilities--Continued

_________________________________________________________________________

 | |

 Map symbol | Septic tank | Sewage lagoons

 and soil name | absorption fields |

 | | ___________________________________________________

 | Rating class and |Value| Rating class and |Value

 | limiting features | | limiting features | _________________________________________________________________________

 | | | |

781B: | | | |

 Lourdes-------------|Very limited | |Somewhat limited |

 | Restricted |1.00 | Depth to |0.71

 | permeability | | saturated zone |

 | Depth to |1.00 | Seepage |0.50

 | saturated zone | | Slope |0.32

 | | | |

781C2: | | | |

 Lourdes, moderately | | | |

 eroded-------------|Very limited | |Very limited |

 | Restricted |1.00 | Slope |1.00

 | permeability | | Depth to |0.71

 | Depth to |1.00 | saturated zone |

 | saturated zone | | |

 | | | |

782B: | | | |

 Donnan--------------|Very limited | |Very limited |

 | Restricted |1.00 | Depth to |1.00

 | permeability | | saturated zone |

 | Depth to |1.00 | Seepage |0.50

 | saturated zone | | Slope |0.32

 | | | |

798: | | | |

 Protivin------------|Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone |

 | Restricted |0.91 | Seepage |0.50

 | permeability | | |

 | | | |

809B: | | | |

 Bertram-------------|Very limited | |Very limited |

 | Depth to bedrock |1.00 | Depth to hard |1.00

 | | | bedrock |

 | | | Seepage |1.00

 | | | Slope |0.32

 | | | |

877B: | | | |

 Dinsmore------------|Very limited | |Somewhat limited |

 | Depth to |1.00 | Depth to |0.71

 | saturated zone | | saturated zone |

 | Restricted |0.25 | Seepage |0.50

 | permeability | | Slope |0.32

 | | | |

884: | | | |

 Klingmore-----------|Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone |

 | Restricted |0.25 | Seepage |0.50

 | permeability | | |

 | | | |

911B: | | | |

 Colo----------------|Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone |

 | Restricted |0.25 | Seepage |0.50

 | permeability | | |

 | | | |
282 Soil Survey of

Table 14a.--Sanitary Facilities--Continued

_________________________________________________________________________

 | |

 Map symbol | Septic tank | Sewage lagoons

 and soil name | absorption fields |

 | | ___________________________________________________

 | Rating class and |Value| Rating class and |Value

 | limiting features | | limiting features | _________________________________________________________________________

 | | | |

911B: | | | |

 Ely-----------------|Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone |

 | Restricted |0.25 | Seepage |0.50

 | permeability | | Slope |0.32

 | | | |

933: | | | |

 Sawmill, | | | |

 occasionally | | | |

 flooded------------|Very limited | |Very limited |

 | Flooding |1.00 | Depth to |1.00

 | Depth to |1.00 | saturated zone |

 | saturated zone | | Flooding |1.00

 | Restricted |0.25 | Seepage |0.50

 | permeability | | |

 | | | |

982: | | | |

 Maxmore-------------|Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone |

 | Restricted |0.25 | Seepage |0.50

 | permeability | | |

 | | | |

1152: | | | |

 Marshan, 24 to 40 | | | |

 inches to sand and | | | |

 gravel-------------|Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone |

 | Filtering |1.00 | Seepage |1.00

 | capacity | | |

 | Restricted |0.25 | |

 | permeability | | |

 | | | |

1226: | | | |

 Lawler, 24 to 40 | | | |

 inches to sand and | | | |

 gravel-------------|Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone |

 | Filtering |1.00 | Seepage |1.00

 | capacity | | |

 | Restricted |0.25 | |

 | permeability | | |

 | | | |

1285G: | | | |

 Burkhardt-----------|Very limited | |Very limited |

 | Filtering |1.00 | Slope |1.00

 | capacity | | Seepage |1.00

 | Slope |1.00 | |

 | | | |

 Bassett-------------|Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone |

 | Slope |1.00 | Slope |1.00

 | Restricted |0.35 | Seepage |0.50

 | permeability | | |

 | | | |
Black Hawk County, Iowa 283

Table 14a.--Sanitary Facilities--Continued

_________________________________________________________________________

 | |

 Map symbol | Septic tank | Sewage lagoons

 and soil name | absorption fields |

 | | ___________________________________________________

 | Rating class and |Value| Rating class and |Value

 | limiting features | | limiting features | _________________________________________________________________________

 | | | |

1285G: | | | |

 Chelsea-------------|Very limited | |Very limited |

 | Filtering |1.00 | Slope |1.00

 | capacity | | Seepage |1.00

 | Slope |1.00 | |

 | | | |

1585: | | | |

 Spillville, | | | |

 frequently flooded |Very limited | |Very limited |

 | Flooding |1.00 | Depth to |1.00

 | Depth to |1.00 | saturated zone |

 | saturated zone | | Flooding |1.00

 | Restricted |0.25 | Seepage |1.00

 | permeability | | |

 | | | |

 Coland, frequently | | | |

 flooded------------|Very limited | |Very limited |

 | Flooding |1.00 | Depth to |1.00

 | Depth to |1.00 | saturated zone |

 | saturated zone | | Flooding |1.00

 | Restricted |0.25 | Seepage |1.00

 | permeability | | |

 | | | |

 Aquolls, ponded-----|Very limited | |Not rated |

 | Ponding |1.00 | |

 | Depth to |1.00 | |

 | saturated zone | | |

 | | | |

1586: | | | |

 Sigglekov, | | | |

 frequently flooded |Very limited | |Very limited |

 | Flooding |1.00 | Depth to |1.00

 | Depth to |1.00 | saturated zone |

 | saturated zone | | Flooding |1.00

 | Filtering |1.00 | Seepage |1.00

 | capacity | | |

 | | | |

 Fluvaquents, | | | |

 frequently flooded |Very limited | |Not rated |

 | Flooding |1.00 | |

 | Depth to |1.00 | |

 | saturated zone | | |

 | | | |

 Aquents, ponded-----|Very limited | |Not rated |

 | Ponding |1.00 | |

 | Depth to |1.00 | |

 | saturated zone | | |

 | | | |

4000: | | | |

 Urban land----------|Not rated | |Not rated |

 | | | |

4007: | | | |

 Wiota---------------|Very limited | |Very limited |

 | Filtering |1.00 | Seepage |1.00

 | capacity | | |

 | Restricted |0.25 | |

 | permeability | | |

 | | | |

 Urban land----------|Not rated | |Not rated |

 | | | |
284 Soil Survey of

Table 14a.--Sanitary Facilities--Continued

_________________________________________________________________________

 | |

 Map symbol | Septic tank | Sewage lagoons

 and soil name | absorption fields |

 | | ___________________________________________________

 | Rating class and |Value| Rating class and |Value

 | limiting features | | limiting features | _________________________________________________________________________

 | | | |

4041: | | | |

 Sparta--------------|Very limited | |Very limited |

 | Filtering |1.00 | Seepage |1.00

 | capacity | | |

 | | | |

 Urban land----------|Not rated | |Not rated |

 | | | |

4041B: | | | |

 Sparta--------------|Very limited | |Very limited |

 | Filtering |1.00 | Seepage |1.00

 | capacity | | Slope |0.32

 | | | |

 Urban land----------|Not rated | |Not rated |

 | | | |

4041C: | | | |

 Sparta--------------|Very limited | |Very limited |

 | Filtering |1.00 | Seepage |1.00

 | capacity | | Slope |1.00

 | | | |

 Urban land----------|Not rated | |Not rated |

 | | | |

4041D: | | | |

 Sparta--------------|Very limited | |Very limited |

 | Filtering |1.00 | Slope |1.00

 | capacity | | Seepage |1.00

 | Slope |0.63 | |

 | | | |

 Urban land----------|Not rated | |Not rated |

 | | | |

4063B: | | | |

 Chelsea-------------|Very limited | |Very limited |

 | Filtering |1.00 | Seepage |1.00

 | capacity | | Slope |0.32

 | | | |

 Urban land----------|Not rated | |Not rated |

 | | | |

4063C: | | | |

 Chelsea-------------|Very limited | |Very limited |

 | Filtering |1.00 | Seepage |1.00

 | capacity | | Slope |1.00

 | | | |

 Urban land----------|Not rated | |Not rated |

 | | | |

4063D: | | | |

 Chelsea-------------|Very limited | |Very limited |

 | Filtering |1.00 | Slope |1.00

 | capacity | | Seepage |1.00

 | Slope |0.63 | |

 | | | |

 Urban land----------|Not rated | |Not rated |

 | | | |

4083B: | | | |

 Kenyon--------------|Very limited | |Somewhat limited |

 | Depth to |1.00 | Depth to |0.71

 | saturated zone | | saturated zone |

 | Restricted |0.25 | Seepage |0.50

 | permeability | | Slope |0.32

 | | | |

 Urban land----------|Not rated | |Not rated |

 | | | |
Black Hawk County, Iowa 285

Table 14a.--Sanitary Facilities--Continued

_________________________________________________________________________

 | |

 Map symbol | Septic tank | Sewage lagoons

 and soil name | absorption fields |

 | | ___________________________________________________

 | Rating class and |Value| Rating class and |Value

 | limiting features | | limiting features | _________________________________________________________________________

 | | | |

4083C: | | | |

 Kenyon--------------|Very limited | |Very limited |

 | Depth to |1.00 | Slope |1.00

 | saturated zone | | Depth to |0.71

 | Restricted |0.25 | saturated zone |

 | permeability | | Seepage |0.50

 | | | |

 Urban land----------|Not rated | |Not rated |

 | | | |

4083D: | | | |

 Kenyon--------------|Very limited | |Very limited |

 | Depth to |1.00 | Slope |1.00

 | saturated zone | | Depth to |0.71

 | Slope |0.63 | saturated zone |

 | Restricted |0.25 | Seepage |0.50

 | permeability | | |

 | | | |

 Urban land----------|Not rated | |Not rated |

 | | | |

4084: | | | |

 Clyde---------------|Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone |

 | Restricted |0.25 | Seepage |0.50

 | permeability | | |

 | | | |

 Urban land----------|Not rated | |Not rated |

 | | | |

4088: | | | |

 Nevin---------------|Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone |

 | Flooding |0.40 | Seepage |0.50

 | Restricted |0.25 | Flooding |0.40

 | permeability | | |

 | | | |

 Urban land----------|Not rated | |Not rated |

 | | | |

4133: | | | |

 Colo, occasionally | | | |

 flooded------------|Very limited | |Very limited |

 | Flooding |1.00 | Depth to |1.00

 | Depth to |1.00 | saturated zone |

 | saturated zone | | Flooding |1.00

 | Restricted |0.25 | Seepage |0.50

 | permeability | | |

 | | | |

 Urban land----------|Not rated | |Not rated |

 | | | |

4135: | | | |

 Coland, occasionally| | | |

 flooded------------|Very limited | |Very limited |

 | Flooding |1.00 | Depth to |1.00

 | Depth to |1.00 | saturated zone |

 | saturated zone | | Flooding |1.00

 | Restricted |0.25 | Seepage |1.00

 | permeability | | |

 | | | |

 Urban land----------|Not rated | |Not rated |

 | | | |
286 Soil Survey of

Table 14a.--Sanitary Facilities--Continued

_________________________________________________________________________

 | |

 Map symbol | Septic tank | Sewage lagoons

 and soil name | absorption fields |

 | | ___________________________________________________

 | Rating class and |Value| Rating class and |Value

 | limiting features | | limiting features | _________________________________________________________________________

 | | | |

4152: | | | |

 Marshan, 24 to 40 | | | |

 inches to sand and | | | |

 gravel-------------|Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone |

 | Filtering |1.00 | Seepage |1.00

 | capacity | | |

 | Restricted |0.25 | |

 | permeability | | |

 | | | |

 Urban land----------|Not rated | |Not rated |

 | | | |

4159: | | | |

 Finchford-----------|Very limited | |Very limited |

 | Filtering |1.00 | Seepage |1.00

 | capacity | | |

 | | | |

 Urban land----------|Not rated | |Not rated |

 | | | |

4159C: | | | |

 Finchford-----------|Very limited | |Very limited |

 | Filtering |1.00 | Seepage |1.00

 | capacity | | Slope |0.92

 | | | |

 Urban land----------|Not rated | |Not rated |

 | | | |

4171B: | | | |

 Bassett-------------|Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone |

 | Restricted |0.35 | Seepage |0.50

 | permeability | | Slope |0.32

 | | | |

 Urban land----------|Not rated | |Not rated |

 | | | |

4171D: | | | |

 Bassett-------------|Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone |

 | Slope |0.63 | Slope |1.00

 | Restricted |0.35 | Seepage |0.50

 | permeability | | |

 | | | |

 Urban land----------|Not rated | |Not rated |

 | | | |

4175: | | | |

 Dickinson-----------|Very limited | |Very limited |

 | Filtering |1.00 | Seepage |1.00

 | capacity | | |

 | | | |

 Urban land----------|Not rated | |Not rated |

 | | | |

4175B: | | | |

 Dickinson-----------|Very limited | |Very limited |

 | Filtering |1.00 | Seepage |1.00

 | capacity | | Slope |0.32

 | | | |

 Urban land----------|Not rated | |Not rated |

 | | | |
Black Hawk County, Iowa 287

Table 14a.--Sanitary Facilities--Continued

_________________________________________________________________________

 | |

 Map symbol | Septic tank | Sewage lagoons

 and soil name | absorption fields |

 | | ___________________________________________________

 | Rating class and |Value| Rating class and |Value

 | limiting features | | limiting features | _________________________________________________________________________

 | | | |

4177: | | | |

 Saude---------------|Very limited | |Very limited |

 | Filtering |1.00 | Seepage |1.00

 | capacity | | |

 | | | |

 Urban land----------|Not rated | |Not rated |

 | | | |

4177B: | | | |

 Saude---------------|Very limited | |Very limited |

 | Filtering |1.00 | Seepage |1.00

 | capacity | | Slope |0.32

 | | | |

 Urban land----------|Not rated | |Not rated |

 | | | |

4178: | | | |

 Waukee--------------|Very limited | |Very limited |

 | Filtering |1.00 | Seepage |1.00

 | capacity | | |

 | Restricted |0.25 | |

 | permeability | | |

 | | | |

 Urban land----------|Not rated | |Not rated |

 | | | |

4184: | | | |

 Klinger-------------|Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone |

 | Restricted |0.25 | Seepage |0.50

 | permeability | | |

 | | | |

 Urban land----------|Not rated | |Not rated |

 | | | |

4198B: | | | |

 Floyd---------------|Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone |

 | Restricted |0.25 | Seepage |1.00

 | permeability | | Slope |0.08

 | | | |

 Urban land----------|Not rated | |Not rated |

 | | | |

4226: | | | |

 Lawler, 24 to 40 | | | |

 inches to sand and | | | |

 gravel-------------|Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone |

 | Filtering |1.00 | Seepage |1.00

 | capacity | | |

 | Restricted |0.25 | |

 | permeability | | |

 | | | |

 Urban land----------|Not rated | |Not rated |

 | | | |

4284: | | | |

 Flagler-------------|Very limited | |Very limited |

 | Filtering |1.00 | Seepage |1.00

 | capacity | | |

 | | | |

 Urban land----------|Not rated | |Not rated |

 | | | |
288 Soil Survey of

Table 14a.--Sanitary Facilities--Continued

_________________________________________________________________________

 | |

 Map symbol | Septic tank | Sewage lagoons

 and soil name | absorption fields |

 | | ___________________________________________________

 | Rating class and |Value| Rating class and |Value

 | limiting features | | limiting features | _________________________________________________________________________

 | | | |

4284B: | | | |

 Flagler-------------|Very limited | |Very limited |

 | Filtering |1.00 | Seepage |1.00

 | capacity | | Slope |0.32

 | | | |

 Urban land----------|Not rated | |Not rated |

 | | | |

4377B: | | | |

 Dinsdale------------|Very limited | |Somewhat limited |

 | Depth to |1.00 | Depth to |0.71

 | saturated zone | | saturated zone |

 | Restricted |0.25 | Seepage |0.50

 | permeability | | Slope |0.32

 | | | |

 Urban land----------|Not rated | |Not rated |

 | | | |

4377C: | | | |

 Dinsdale------------|Very limited | |Very limited |

 | Depth to |1.00 | Slope |1.00

 | saturated zone | | Depth to |0.71

 | Restricted |0.25 | saturated zone |

 | permeability | | Seepage |0.50

 | | | |

 Urban land----------|Not rated | |Not rated |

 | | | |

4382: | | | |

 Maxfield------------|Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone |

 | Restricted |0.25 | Seepage |0.50

 | permeability | | |

 | | | |

 Urban land----------|Not rated | |Not rated |

 | | | |

4391B: | | | |

 Clyde---------------|Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone |

 | Restricted |0.25 | Seepage |0.50

 | permeability | | |

 | | | |

 Floyd---------------|Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone |

 | Restricted |0.25 | Seepage |1.00

 | permeability | | Slope |0.08

 | | | |

 Urban land----------|Not rated | |Not rated |

 | | | |

4398: | | | |

 Tripoli-------------|Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone |

 | Restricted |0.25 | Seepage |0.50

 | permeability | | |

 | | | |

 Urban land----------|Not rated | |Not rated |

 | | | |
Black Hawk County, Iowa 289

Table 14a.--Sanitary Facilities--Continued

_________________________________________________________________________

 | |

 Map symbol | Septic tank | Sewage lagoons

 and soil name | absorption fields |

 | | ___________________________________________________

 | Rating class and |Value| Rating class and |Value

 | limiting features | | limiting features | _________________________________________________________________________

 | | | |

4399: | | | |

 Readlyn-------------|Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone |

 | Restricted |0.25 | Seepage |0.50

 | permeability | | |

 | | | |

 Urban land----------|Not rated | |Not rated |

 | | | |

4408B: | | | |

 Olin----------------|Not limited | |Very limited |

 | Restricted |0.25 | Seepage |1.00

 | permeability | | Slope |0.32

 | | | |

 Urban land----------|Not rated | |Not rated |

 | | | |

4408C: | | | |

 Olin----------------|Not limited | |Very limited |

 | Restricted |0.25 | Seepage |1.00

 | permeability | | |

 | | | Slope |1.00

 | | | |

 Urban land----------|Not rated | |Not rated |

 | | | |

4426B: | | | |

 Aredale-------------|Somewhat limited | |Very limited |

 | Restricted |0.91 | Seepage |1.00

 | permeability | | Slope |0.32

 | | | |

 Urban land----------|Not rated | |Not rated |

 | | | |

4426C: | | | |

 Aredale-------------|Somewhat limited | |Very limited |

 | Restricted |0.91 | Seepage |1.00

 | permeability | | Slope |1.00

 | | | |

 Urban land----------|Not rated | |Not rated |

 | | | |

4585: | | | |

 Spillville, | | | |

 occasionally | | | |

 flooded------------|Very limited | |Very limited |

 | Flooding |1.00 | Depth to |1.00

 | Depth to |1.00 | saturated zone |

 | saturated zone | | Flooding |1.00

 | Restricted |0.25 | Seepage |1.00

 | permeability | | |

 | | | |

 Coland, occasionally| | | |

 flooded------------|Very limited | |Very limited |

 | Flooding |1.00 | Depth to |1.00

 | Depth to |1.00 | saturated zone |

 | saturated zone | | Flooding |1.00

 | Restricted |0.25 | Seepage |1.00

 | permeability | | |

 | | | |

 Urban land----------|Not rated | |Not rated |

 | | | |
290 Soil Survey of

Table 14a.--Sanitary Facilities--Continued

_________________________________________________________________________

 | |

 Map symbol | Septic tank | Sewage lagoons

 and soil name | absorption fields |

 | | ___________________________________________________

 | Rating class and |Value| Rating class and |Value

 | limiting features | | limiting features | _________________________________________________________________________

 | | | |

4761: | | | |

 Franklin------------|Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone |

 | Restricted |0.35 | Seepage |0.50

 | permeability | | |

 | | | |

 Urban land----------|Not rated | |Not rated |

 | | | |

4771B: | | | |

 Waubeek-------------|Very limited | |Somewhat limited |

 | Depth to |1.00 | Depth to |0.71

 | saturated zone | | saturated zone |

 | Restricted |0.35 | Seepage |0.50

 | permeability | | Slope |0.32

 | | | |

 Urban land----------|Not rated | |Not rated |

 | | | |

4771D: | | | |

 Waubeek-------------|Very limited | |Very limited |

 | Depth to |1.00 | Slope |1.00

 | saturated zone | | Depth to |0.71

 | Restricted |0.35 | saturated zone |

 | permeability | | Seepage |0.50

 | Slope |0.04 | |

 | | | |

 Urban land----------|Not rated | |Not rated |

 | | | |

4798: | | | |

 Protivin------------|Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone |

 | Restricted |0.91 | Seepage |0.50

 | permeability | | |

 | | | |

 Urban land----------|Not rated | |Not rated |

 | | | |

4911B: | | | |

 Colo----------------|Very limited | |Very limited |

 | Flooding |1.00 | Depth to |1.00

 | Depth to |1.00 | saturated zone |

 | saturated zone | | Flooding |1.00

 | Restricted |0.25 | Seepage |0.50

 | permeability | | |

 | | | |

 Ely-----------------|Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone |

 | Restricted |0.25 | Seepage |0.50

 | permeability | | Slope |0.32

 | | | |

 Urban land----------|Not rated | |Not rated |

 | | | |
Black Hawk County, Iowa 291

Table 14a.--Sanitary Facilities--Continued

_________________________________________________________________________

 | |

 Map symbol | Septic tank | Sewage lagoons

 and soil name | absorption fields |

 | | ___________________________________________________

 | Rating class and |Value| Rating class and |Value

 | limiting features | | limiting features | _________________________________________________________________________

 | | | |

4933: | | | |

 Sawmill, | | | |

 occasionally | | | |

 flooded------------|Very limited | |Very limited |

 | Flooding |1.00 | Depth to |1.00

 | Depth to |1.00 | saturated zone |

 | saturated zone | | Flooding |1.00

 | Restricted |0.25 | Seepage |0.50

 | permeability | | |

 | | | |

 Urban land----------|Not rated | |Not rated |

 | | | |

4946: | | | |

 Orthents, loamy-----|Not rated | |Not rated |

 | | | |

 Urban land----------|Not rated | |Not rated |

 | | | |

5010: | | | |

 Pits, sand and | | | |

 gravel-------------|Not rated | |Not rated |

 | | | |

5030: | | | |

 Pits, limestone | | | |

 quarries-----------|Not rated | |Not rated |

 | | | |

5040: | | | |

 Orthents, loamy-----|Not rated | |Not rated |

 | | | |

5053: | | | |

 Psammaquents, | | | |

 frequently flooded |Very limited | |Not rated |

 | Flooding |1.00 | |

 | Depth to |1.00 | |

 | saturated zone | | |

 | | | |

5080: | | | |

 Orthents, sanitary | | | |

 landfill-----------|Not rated | |Not rated |

 | | | |

AW: | | | |

 Animal waste--------|Not rated | |Not rated |

 | | | |

SL: | | | |

 Sewage lagoon-------|Not rated | |Not rated |

 | | | |

W: | | | |

 Water---------------|Not rated | |Not rated |

 | | | | _________________________________________________________________________
292 Soil Survey of

Table 14b.--Sanitary Facilities

(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. "Not rated" indicates that data are not

 available or that no rating is applicable. See text for further explanation of ratings in

 this table)

___________________________________________________________________________________________________

 | | |

 Map symbol | Trench sanitary | Area sanitary | Daily cover for

 and soil name | landfill | landfill | landfill

 | | | _____________________________________________________________________________

 | Rating class and |Value| Rating class and |Value| Rating class and |Value

 | limiting features | | limiting features | | limiting features | ___________________________________________________________________________________________________

 | | | | | |

7: | | | | | |

 Wiota---------------|Very limited | |Not limited | |Very limited |

 | Seepage |1.00 | | | Seepage |1.00

 | Too clayey |0.50 | | | Too clayey |0.50

 | | | | | |

41: | | | | | |

 Sparta--------------|Very limited | |Very limited | |Very limited |

 | Too sandy |1.00 | Seepage |1.00 | Too sandy |1.00

 | Seepage |1.00 | | | Seepage |1.00

 | | | | | |

41B: | | | | | |

 Sparta--------------|Very limited | |Very limited | |Very limited |

 | Too sandy |1.00 | Seepage |1.00 | Too sandy |1.00

 | Seepage |1.00 | | | Seepage |1.00

 | | | | | |

41C: | | | | | |

 Sparta--------------|Very limited | |Very limited | |Very limited |

 | Too sandy |1.00 | Seepage |1.00 | Too sandy |1.00

 | Seepage |1.00 | | | Seepage |1.00

 | | | | | |

41D: | | | | | |

 Sparta--------------|Very limited | |Very limited | |Very limited |

 | Too sandy |1.00 | Seepage |1.00 | Too sandy |1.00

 | Seepage |1.00 | Slope |0.63 | Seepage |1.00

 | Slope |0.63 | | | Slope |0.63

 | | | | | |

63B: | | | | | |

 Chelsea-------------|Very limited | |Very limited | |Very limited |

 | Too sandy |1.00 | Seepage |1.00 | Too sandy |1.00

 | Seepage |1.00 | | | Seepage |1.00

 | | | | | |

63C: | | | | | |

 Chelsea-------------|Very limited | |Very limited | |Very limited |

 | Seepage |1.00 | Seepage |1.00 | Seepage |1.00

 | | | | | |

63D: | | | | | |

 Chelsea-------------|Very limited | |Very limited | |Very limited |

 | Too sandy |1.00 | Seepage |1.00 | Too sandy |1.00

 | Seepage |1.00 | Slope |0.63 | Seepage |1.00

 | Slope |0.63 | | | Slope |0.63

 | | | | | |

83B: | | | | | |

 Kenyon--------------|Very limited | |Very limited | |Not limited |

 | Depth to |1.00 | Depth to |1.00 | |

 | saturated zone | | saturated zone | | |

 | | | | | |

83C: | | | | | |

 Kenyon--------------|Very limited | |Very limited | |Not limited |

 | Depth to |1.00 | Depth to |1.00 | |

 | saturated zone | | saturated zone | | |

 | | | | | |
Black Hawk County, Iowa 293

Table 14b.--Sanitary Facilities--Continued

___________________________________________________________________________________________________

 | | |

 Map symbol | Trench sanitary | Area sanitary | Daily cover for

 and soil name | landfill | landfill | landfill

 | | | _____________________________________________________________________________

 | Rating class and |Value| Rating class and |Value| Rating class and |Value

 | limiting features | | limiting features | | limiting features | ___________________________________________________________________________________________________

 | | | | | |

83C2: | | | | | |

 Kenyon, moderately | | | | | |

 eroded-------------|Very limited | |Very limited | |Not limited |

 | Depth to |1.00 | Depth to |1.00 | |

 | saturated zone | | saturated zone | | |

 | | | | | |

83D2: | | | | | |

 Kenyon, moderately | | | | | |

 eroded-------------|Very limited | |Very limited | |Somewhat limited |

 | Depth to |1.00 | Depth to |1.00 | Slope |0.63

 | saturated zone | | saturated zone | | |

 | Slope |0.63 | Slope |0.63 | |

 | | | | | |

84: | | | | | |

 Clyde---------------|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 |0.50 | | | Too clayey |0.50

 | | | | | |

88: | | | | | |

 Nevin---------------|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 |0.50 | Flooding |0.40 | Too clayey |0.50

 | Flooding |0.40 | | | |

 | | | | | |

133: | | | | | |

 Colo, occasionally | | | | | |

 flooded------------|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 clayey |0.50

 | Too clayey |0.50 | | | |

 | | | | | |

135: | | | | | |

 Coland, occasionally| | | | | |

 flooded------------|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 clayey |0.50

 | Seepage |1.00 | | | |

 | Too clayey |0.50 | | | |

 | | | | | |

159: | | | | | |

 Finchford-----------|Very limited | |Very limited | |Very limited |

 | Too sandy |1.00 | Seepage |1.00 | Too sandy |1.00

 | Seepage |1.00 | | | Seepage |1.00

 | | | | | |

159C: | | | | | |

 Finchford-----------|Very limited | |Very limited | |Very limited |

 | Too sandy |1.00 | Seepage |1.00 | Too sandy |1.00

 | Seepage |1.00 | | | Seepage |1.00

 | | | | | Gravel content |0.01

 | | | | | |

171B: | | | | | |

 Bassett-------------|Very limited | |Very limited | |Somewhat limited |

 | Depth to |1.00 | Depth to |1.00 | Depth to |0.86

 | saturated zone | | saturated zone | | saturated zone |

 | | | | | |
294 Soil Survey of

Table 14b.--Sanitary Facilities--Continued

___________________________________________________________________________________________________

 | | |

 Map symbol | Trench sanitary | Area sanitary | Daily cover for

 and soil name | landfill | landfill | landfill

 | | | _____________________________________________________________________________

 | Rating class and |Value| Rating class and |Value| Rating class and |Value

 | limiting features | | limiting features | | limiting features | ___________________________________________________________________________________________________

 | | | | | |

175: | | | | | |

 Dickinson-----------|Very limited | |Very limited | |Very limited |

 | Too sandy |1.00 | Seepage |1.00 | Too sandy |1.00

 | Seepage |1.00 | | | Seepage |1.00

 | | | | | |

175B: | | | | | |

 Dickinson-----------|Very limited | |Very limited | |Very limited |

 | Too sandy |1.00 | Seepage |1.00 | Too sandy |1.00

 | Seepage |1.00 | | | Seepage |1.00

 | | | | | |

177: | | | | | |

 Saude---------------|Very limited | |Very limited | |Very limited |

 | Too sandy |1.00 | Seepage |1.00 | Too sandy |1.00

 | Seepage |1.00 | | | Seepage |1.00

 | | | | | |

177B: | | | | | |

 Saude---------------|Very limited | |Very limited | |Very limited |

 | Too sandy |1.00 | Seepage |1.00 | Too sandy |1.00

 | Seepage |1.00 | | | Seepage |1.00

 | | | | | |

178: | | | | | |

 Waukee--------------|Very limited | |Very limited | |Very limited |

 | Too sandy |1.00 | Seepage |1.00 | Too sandy |1.00

 | Seepage |1.00 | | | Seepage |1.00

 | | | | | |

178B: | | | | | |

 Waukee--------------|Very limited | |Very limited | |Very limited |

 | Too sandy |1.00 | Seepage |1.00 | Too sandy |1.00

 | Seepage |1.00 | | | Seepage |1.00

 | | | | | |

184: | | | | | |

 Klinger-------------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone | | saturated zone |

 | | | | | |

198B: | | | | | |

 Floyd---------------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone | | saturated zone |

 | | | Seepage |1.00 | |

 | | | | | |

213B: | | | | | |

 Rockton, 30 to 40 | | | | | |

 inches to limestone|Very limited | |Very limited | |Very limited |

 | Depth to bedrock |1.00 | Depth to bedrock |1.00 | Depth to bedrock |1.00

 | | | | | |

221: | | | | | |

 Klossner------------|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 |0.50 | Seepage |1.00 | |

 | | | | | |

284: | | | | | |

 Flagler-------------|Very limited | |Very limited | |Very limited |

 | Seepage |1.00 | Seepage |1.00 | Seepage |1.00

 | Too sandy |0.50 | | | Too sandy |0.50

 | | | | | |
Black Hawk County, Iowa 295

Table 14b.--Sanitary Facilities--Continued

___________________________________________________________________________________________________

 | | |

 Map symbol | Trench sanitary | Area sanitary | Daily cover for

 and soil name | landfill | landfill | landfill

 | | | _____________________________________________________________________________

 | Rating class and |Value| Rating class and |Value| Rating class and |Value

 | limiting features | | limiting features | | limiting features | ___________________________________________________________________________________________________

 | | | | | |

284B: | | | | | |

 Flagler-------------|Very limited | |Very limited | |Very limited |

 | Seepage |1.00 | Seepage |1.00 | Seepage |1.00

 | Too sandy |0.50 | | | Too sandy |0.50

 | | | | | |

290: | | | | | |

 Dells---------------|Very limited | |Very limited | |Very limited |

 | Too sandy |1.00 | Depth to |1.00 | Depth to |1.00

 | Depth to |1.00 | saturated zone | | saturated zone |

 | saturated zone | | Seepage |1.00 | Too sandy |1.00

 | Seepage |1.00 | | | Seepage |1.00

 | | | | | |

354: | | | | | |

 Aquolls, ponded-----|Not rated | |Very limited | |Not rated |

 | | | Ponding |1.00 | |

 | | | Depth to |1.00 | |

 | | | saturated zone | | |

 | | | | | |

377B: | | | | | |

 Dinsdale------------|Very limited | |Very limited | |Somewhat limited |

 | Depth to |1.00 | Depth to |1.00 | Too clayey |0.50

 | saturated zone | | saturated zone | | |

 | | | | | |

377C: | | | | | |

 Dinsdale------------|Very limited | |Very limited | |Somewhat limited |

 | Depth to |1.00 | Depth to |1.00 | Too clayey |0.50

 | saturated zone | | saturated zone | | |

 | | | | | |

377C2: | | | | | |

 Dinsdale, moderately| | | | | |

 eroded-------------|Very limited | |Very limited | |Not limited |

 | Depth to |1.00 | Depth to |1.00 | |

 | saturated zone | | saturated zone | | |

 | | | | | |

382: | | | | | |

 Maxfield------------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone | | saturated zone |

 | | | | | |

391B: | | | | | |

 Clyde---------------|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 |0.50 | | | Too clayey |0.50

 | | | | | |

 Floyd---------------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone | | saturated zone |

 | | | Seepage |1.00 | |

 | | | | | |

395B: | | | | | |

 Marquis-------------|Very limited | |Very limited | |Somewhat limited |

 | Depth to |1.00 | Depth to |1.00 | Depth to |0.86

 | saturated zone | | saturated zone | | saturated zone |

 | | | | | |

398: | | | | | |

 Tripoli-------------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone | | saturated zone |

 | | | | | |
296 Soil Survey of

Table 14b.--Sanitary Facilities--Continued

___________________________________________________________________________________________________

 | | |

 Map symbol | Trench sanitary | Area sanitary | Daily cover for

 and soil name | landfill | landfill | landfill

 | | | _____________________________________________________________________________

 | Rating class and |Value| Rating class and |Value| Rating class and |Value

 | limiting features | | limiting features | | limiting features | ___________________________________________________________________________________________________

 | | | | | |

399: | | | | | |

 Readlyn-------------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone | | saturated zone |

 | | | | | |

408B: | | | | | |

 Olin----------------|Not limited | |Very limited | |Not limited |

 | | | Seepage |1.00 | |

 | | | | | |

408C: | | | | | |

 Olin----------------|Not limited | |Very limited | |Not limited |

 | | | Seepage |1.00 | |

 | | | | | |

412C: | | | | | |

 Emeline-------------|Very limited | |Very limited | |Very limited |

 | Depth to bedrock |1.00 | Depth to bedrock |1.00 | Depth to bedrock |1.00

 | | | | | |

426B: | | | | | |

 Aredale-------------|Not limited | |Very limited | |Somewhat limited |

 | | | Seepage |1.00 | Seepage |0.50

 | | | | | |

426C: | | | | | |

 Aredale-------------|Not limited | |Very limited | |Somewhat limited |

 | | | Seepage |1.00 | Seepage |0.50

 | | | | | |

426C2: | | | | | |

 Aredale, moderately | | | | | |

 eroded-------------|Not limited | |Very limited | |Not limited |

 | | | Seepage |1.00 | |

 | | | | | |

468B: | | | | | |

 Dunkerton-----------|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 |0.50 | Seepage |1.00 | Too clayey |0.50

 | | | | | |

468C: | | | | | |

 Dunkerton-----------|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 |0.50 | Seepage |1.00 | Too clayey |0.50

 | | | | | |

471: | | | | | |

 Oran----------------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone | | saturated zone |

 | | | | | |

485: | | | | | |

 Spillville, | | | | | |

 occasionally | | | | | |

 flooded------------|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 | | | |

 | | | | | |
Black Hawk County, Iowa 297

Table 14b.--Sanitary Facilities--Continued

___________________________________________________________________________________________________

 | | |

 Map symbol | Trench sanitary | Area sanitary | Daily cover for

 and soil name | landfill | landfill | landfill

 | | | _____________________________________________________________________________

 | Rating class and |Value| Rating class and |Value| Rating class and |Value

 | limiting features | | limiting features | | limiting features | ___________________________________________________________________________________________________

 | | | | | |

585: | | | | | |

 Spillville, | | | | | |

 occasionally | | | | | |

 flooded------------|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 | | | |

 | | | | | |

 Coland, occasionally| | | | | |

 flooded------------|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 clayey |0.50

 | Seepage |1.00 | | | |

 | Too clayey |0.50 | | | |

 | | | | | |

626: | | | | | |

 Hayfield, 24 to 40 | | | | | |

 inches to sand and | | | | | |

 gravel-------------|Very limited | |Very limited | |Very limited |

 | Too sandy |1.00 | Depth to |1.00 | Depth to |1.00

 | Depth to |1.00 | saturated zone | | saturated zone |

 | saturated zone | | Seepage |1.00 | Too sandy |1.00

 | Seepage |1.00 | | | Seepage |1.00

 | | | | | |

761: | | | | | |

 Franklin------------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone | | saturated zone |

 | | | | | |

771B: | | | | | |

 Waubeek-------------|Very limited | |Very limited | |Somewhat limited |

 | Depth to |1.00 | Depth to |1.00 | Too clayey |0.50

 | saturated zone | | saturated zone | | |

 | | | | | |

775B: | | | | | |

 Billett-------------|Very limited | |Very limited | |Somewhat limited |

 | Seepage |1.00 | Seepage |1.00 | Seepage |0.50

 | | | | | |

776C: | | | | | |

 Lilah---------------|Very limited | |Very limited | |Very limited |

 | Seepage |1.00 | Seepage |1.00 | Seepage |1.00

 | Too sandy |0.50 | | | Too sandy |0.50

 | | | | | |

777: | | | | | |

 Wapsie--------------|Very limited | |Very limited | |Very limited |

 | Too sandy |1.00 | Seepage |1.00 | Too sandy |1.00

 | Seepage |1.00 | | | Seepage |1.00

 | | | | | |

781B: | | | | | |

 Lourdes-------------|Very limited | |Very limited | |Somewhat limited |

 | Depth to |1.00 | Depth to |1.00 | Too clayey |0.50

 | saturated zone | | saturated zone | | |

 | Too clayey |0.50 | | | |

 | | | | | |
298 Soil Survey of

Table 14b.--Sanitary Facilities--Continued

___________________________________________________________________________________________________

 | | |

 Map symbol | Trench sanitary | Area sanitary | Daily cover for

 and soil name | landfill | landfill | landfill

 | | | _____________________________________________________________________________

 | Rating class and |Value| Rating class and |Value| Rating class and |Value

 | limiting features | | limiting features | | limiting features | ___________________________________________________________________________________________________

 | | | | | |

781C2: | | | | | |

 Lourdes, moderately | | | | | |

 eroded-------------|Very limited | |Very limited | |Somewhat limited |

 | Depth to |1.00 | Depth to |1.00 | Too clayey |0.50

 | saturated zone | | saturated zone | | |

 | Too clayey |0.50 | | | |

 | | | | | |

782B: | | | | | |

 Donnan--------------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00 | Hard to compact |1.00

 | saturated zone | | saturated zone | | Depth to |1.00

 | Too clayey |1.00 | | | saturated zone |

 | | | | | Too clayey |1.00

 | | | | | |

798: | | | | | |

 Protivin------------|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 |0.50 | | | Too clayey |0.50

 | | | | | |

809B: | | | | | |

 Bertram-------------|Very limited | |Very limited | |Very limited |

 | Depth to bedrock |1.00 | Seepage |1.00 | Depth to bedrock |1.00

 | Seepage |1.00 | Depth to bedrock |1.00 | Seepage |0.50

 | | | | | |

877B: | | | | | |

 Dinsmore------------|Very limited | |Very limited | |Somewhat limited |

 | Depth to |1.00 | Depth to |1.00 | Too clayey |0.50

 | saturated zone | | saturated zone | | |

 | Too clayey |0.50 | | | |

 | | | | | |

884: | | | | | |

 Klingmore-----------|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 |0.50 | | | Too clayey |0.50

 | | | | | |

911B: | | | | | |

 Colo----------------|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 |0.50 | | | Too clayey |0.50

 | | | | | |

 Ely-----------------|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 |0.50 | | | Too clayey |0.50

 | | | | | |

933: | | | | | |

 Sawmill, | | | | | |

 occasionally | | | | | |

 flooded------------|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 clayey |0.50

 | Too clayey |0.50 | | | |

 | | | | | |
Black Hawk County, Iowa 299

Table 14b.--Sanitary Facilities--Continued

___________________________________________________________________________________________________

 | | |

 Map symbol | Trench sanitary | Area sanitary | Daily cover for

 and soil name | landfill | landfill | landfill

 | | | _____________________________________________________________________________

 | Rating class and |Value| Rating class and |Value| Rating class and |Value

 | limiting features | | limiting features | | limiting features | ___________________________________________________________________________________________________

 | | | | | |

982: | | | | | |

 Maxmore-------------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00 | Hard to compact |1.00

 | saturated zone | | saturated zone | | Depth to |1.00

 | Too clayey |0.50 | | | saturated zone |

 | | | | | Too clayey |0.50

 | | | | | |

1152: | | | | | |

 Marshan, 24 to 40 | | | | | |

 inches to sand and | | | | | |

 gravel-------------|Very limited | |Very limited | |Very limited |

 | Too sandy |1.00 | Depth to |1.00 | Depth to |1.00

 | Depth to |1.00 | saturated zone | | saturated zone |

 | saturated zone | | Seepage |1.00 | Too sandy |1.00

 | Seepage |1.00 | | | Seepage |1.00

 | | | | | |

1226: | | | | | |

 Lawler, 24 to 40 | | | | | |

 inches to sand and | | | | | |

 gravel-------------|Very limited | |Very limited | |Very limited |

 | 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

 | Too sandy |0.50 | | | Too sandy |0.50

 | | | | | |

1285G: | | | | | |

 Burkhardt-----------|Very limited | |Very limited | |Very limited |

 | Too sandy |1.00 | Slope |1.00 | Slope |1.00

 | Slope |1.00 | Seepage |1.00 | Too sandy |1.00

 | Seepage |1.00 | | | Seepage |1.00

 | | | | | Gravel content |0.03

 | | | | | |

 Bassett-------------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Slope |1.00 | Slope |1.00

 | saturated zone | | Depth to |1.00 | Depth to |0.86

 | Slope |1.00 | saturated zone | | saturated zone |

 | | | | | |

 Chelsea-------------|Very limited | |Very limited | |Very limited |

 | Too sandy |1.00 | Slope |1.00 | Slope |1.00

 | Slope |1.00 | Seepage |1.00 | Too sandy |1.00

 | Seepage |1.00 | | | Seepage |1.00

 | | | | | |

1585: | | | | | |

 Spillville, | | | | | |

 frequently flooded |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 | | | |

 | | | | | |

 Coland, frequently | | | | | |

 flooded------------|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 clayey |0.50

 | Seepage |1.00 | | | |

 | Too clayey |0.50 | | | |

 | | | | | |
300 Soil Survey of

Table 14b.--Sanitary Facilities--Continued

___________________________________________________________________________________________________

 | | |

 Map symbol | Trench sanitary | Area sanitary | Daily cover for

 and soil name | landfill | landfill | landfill

 | | | _____________________________________________________________________________

 | Rating class and |Value| Rating class and |Value| Rating class and |Value

 | limiting features | | limiting features | | limiting features | ___________________________________________________________________________________________________

 | | | | | |

1585: | | | | | |

 Aquolls, ponded-----|Not rated | |Very limited | |Not rated |

 | | | Ponding |1.00 | |

 | | | Depth to |1.00 | |

 | | | saturated zone | | |

 | | | | | |

1586: | | | | | |

 Sigglekov, | | | | | |

 frequently flooded |Very limited | |Very limited | |Very limited |

 | Too sandy |1.00 | Flooding |1.00 | Depth to |1.00

 | Flooding |1.00 | Depth to |1.00 | saturated zone |

 | Depth to |1.00 | saturated zone | | Too sandy |1.00

 | saturated zone | | Seepage |1.00 | Seepage |1.00

 | Seepage |1.00 | | | |

 | | | | | |

 Fluvaquents, | | | | | |

 frequently flooded |Not rated | |Very limited | |Not rated |

 | | | Flooding |1.00 | |

 | | | Depth to |1.00 | |

 | | | saturated zone | | |

 | | | | | |

 Aquents, ponded-----|Not rated | |Very limited | |Not rated |

 | | | Ponding |1.00 | |

 | | | Depth to |1.00 | |

 | | | saturated zone | | |

 | | | | | |

4000: | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4007: | | | | | |

 Wiota---------------|Very limited | |Not limited | |Very limited |

 | Seepage |1.00 | | | Seepage |1.00

 | Too clayey |0.50 | | | Too clayey |0.50

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4041: | | | | | |

 Sparta--------------|Very limited | |Very limited | |Very limited |

 | Too sandy |1.00 | Seepage |1.00 | Too sandy |1.00

 | Seepage |1.00 | | | Seepage |1.00

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4041B: | | | | | |

 Sparta--------------|Very limited | |Very limited | |Very limited |

 | Too sandy |1.00 | Seepage |1.00 | Too sandy |1.00

 | Seepage |1.00 | | | Seepage |1.00

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4041C: | | | | | |

 Sparta--------------|Very limited | |Very limited | |Very limited |

 | Too sandy |1.00 | Seepage |1.00 | Too sandy |1.00

 | Seepage |1.00 | | | Seepage |1.00

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |
Black Hawk County, Iowa 301

Table 14b.--Sanitary Facilities--Continued

___________________________________________________________________________________________________

 | | |

 Map symbol | Trench sanitary | Area sanitary | Daily cover for

 and soil name | landfill | landfill | landfill

 | | | _____________________________________________________________________________

 | Rating class and |Value| Rating class and |Value| Rating class and |Value

 | limiting features | | limiting features | | limiting features | ___________________________________________________________________________________________________

 | | | | | |

4041D: | | | | | |

 Sparta--------------|Very limited | |Very limited | |Very limited |

 | Too sandy |1.00 | Seepage |1.00 | Too sandy |1.00

 | Seepage |1.00 | Slope |0.63 | Seepage |1.00

 | Slope |0.63 | | | Slope |0.63

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4063B: | | | | | |

 Chelsea-------------|Very limited | |Very limited | |Very limited |

 | Seepage |1.00 | Seepage |1.00 | Seepage |1.00

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4063C: | | | | | |

 Chelsea-------------|Very limited | |Very limited | |Very limited |

 | Seepage |1.00 | Seepage |1.00 | Seepage |1.00

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4063D: | | | | | |

 Chelsea-------------|Very limited | |Very limited | |Very limited |

 | Seepage |1.00 | Seepage |1.00 | Seepage |1.00

 | Slope |0.63 | Slope |0.63 | Slope |0.63

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4083B: | | | | | |

 Kenyon--------------|Very limited | |Very limited | |Not limited |

 | Depth to |1.00 | Depth to |1.00 | |

 | saturated zone | | saturated zone | | |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4083C: | | | | | |

 Kenyon--------------|Very limited | |Very limited | |Not limited |

 | Depth to |1.00 | Depth to |1.00 | |

 | saturated zone | | saturated zone | | |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4083D: | | | | | |

 Kenyon--------------|Very limited | |Very limited | |Somewhat limited |

 | Depth to |1.00 | Depth to |1.00 | Slope |0.63

 | saturated zone | | saturated zone | | |

 | Slope |0.63 | Slope |0.63 | |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4084: | | | | | |

 Clyde---------------|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 |0.50 | | | Too clayey |0.50

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |
302 Soil Survey of

Table 14b.--Sanitary Facilities--Continued

___________________________________________________________________________________________________

 | | |

 Map symbol | Trench sanitary | Area sanitary | Daily cover for

 and soil name | landfill | landfill | landfill

 | | | _____________________________________________________________________________

 | Rating class and |Value| Rating class and |Value| Rating class and |Value

 | limiting features | | limiting features | | limiting features | ___________________________________________________________________________________________________

 | | | | | |

4088: | | | | | |

 Nevin---------------|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 |0.50 | Flooding |0.40 | Too clayey |0.50

 | Flooding |0.40 | | | |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4133: | | | | | |

 Colo, occasionally | | | | | |

 flooded------------|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 clayey |0.50

 | Too clayey |0.50 | | | |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4135: | | | | | |

 Coland, occasionally| | | | | |

 flooded------------|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 clayey |0.50

 | Seepage |1.00 | | | |

 | Too clayey |0.50 | | | |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4152: | | | | | |

 Marshan, 24 to 40 | | | | | |

 inches to sand and | | | | | |

 gravel-------------|Very limited | |Very limited | |Very limited |

 | Too sandy |1.00 | Depth to |1.00 | Depth to |1.00

 | Depth to |1.00 | saturated zone | | saturated zone |

 | saturated zone | | Seepage |1.00 | Too sandy |1.00

 | Seepage |1.00 | | | Seepage |1.00

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4159: | | | | | |

 Finchford-----------|Very limited | |Very limited | |Very limited |

 | Too sandy |1.00 | Seepage |1.00 | Too sandy |1.00

 | Seepage |1.00 | | | Seepage |1.00

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4159C: | | | | | |

 Finchford-----------|Very limited | |Very limited | |Very limited |

 | Too sandy |1.00 | Seepage |1.00 | Too sandy |1.00

 | Seepage |1.00 | | | Seepage |1.00

 | | | | | Gravel content |0.01

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4171B: | | | | | |

 Bassett-------------|Very limited | |Very limited | |Somewhat limited |

 | Depth to |1.00 | Depth to |1.00 | Depth to |0.86

 | saturated zone | | saturated zone | | saturated zone |

 | | | | | |
Black Hawk County, Iowa 303

Table 14b.--Sanitary Facilities--Continued

___________________________________________________________________________________________________

 | | |

 Map symbol | Trench sanitary | Area sanitary | Daily cover for

 and soil name | landfill | landfill | landfill

 | | | _____________________________________________________________________________

 | Rating class and |Value| Rating class and |Value| Rating class and |Value

 | limiting features | | limiting features | | limiting features | ___________________________________________________________________________________________________

 | | | | | |

4171B: | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4171D: | | | | | |

 Bassett-------------|Very limited | |Very limited | |Somewhat limited |

 | Depth to |1.00 | Depth to |1.00 | Depth to |0.86

 | saturated zone | | saturated zone | | saturated zone |

 | Slope |0.63 | Slope |0.63 | Slope |0.63

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4175: | | | | | |

 Dickinson-----------|Very limited | |Very limited | |Very limited |

 | Too sandy |1.00 | Seepage |1.00 | Too sandy |1.00

 | Seepage |1.00 | | | Seepage |1.00

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4175B: | | | | | |

 Dickinson-----------|Very limited | |Very limited | |Very limited |

 | Too sandy |1.00 | Seepage |1.00 | Too sandy |1.00

 | Seepage |1.00 | | | Seepage |1.00

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4177: | | | | | |

 Saude---------------|Very limited | |Very limited | |Very limited |

 | Too sandy |1.00 | Seepage |1.00 | Too sandy |1.00

 | Seepage |1.00 | | | Seepage |1.00

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4177B: | | | | | |

 Saude---------------|Very limited | |Very limited | |Very limited |

 | Too sandy |1.00 | Seepage |1.00 | Too sandy |1.00

 | Seepage |1.00 | | | Seepage |1.00

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4178: | | | | | |

 Waukee--------------|Very limited | |Very limited | |Very limited |

 | Too sandy |1.00 | Seepage |1.00 | Too sandy |1.00

 | Seepage |1.00 | | | Seepage |1.00

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4184: | | | | | |

 Klinger-------------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone | | saturated zone |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4198B: | | | | | |

 Floyd---------------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone | | saturated zone |

 | | | Seepage |1.00 | |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |
304 Soil Survey of

Table 14b.--Sanitary Facilities--Continued

___________________________________________________________________________________________________

 | | |

 Map symbol | Trench sanitary | Area sanitary | Daily cover for

 and soil name | landfill | landfill | landfill

 | | | _____________________________________________________________________________

 | Rating class and |Value| Rating class and |Value| Rating class and |Value

 | limiting features | | limiting features | | limiting features | ___________________________________________________________________________________________________

 | | | | | |

4226: | | | | | |

 Lawler, 24 to 40 | | | | | |

 inches to sand and | | | | | |

 gravel-------------|Very limited | |Very limited | |Very limited |

 | 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

 | Too sandy |0.50 | | | Too sandy |0.50

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4284: | | | | | |

 Flagler-------------|Very limited | |Very limited | |Very limited |

 | Seepage |1.00 | Seepage |1.00 | Seepage |1.00

 | Too sandy |0.50 | | | Too sandy |0.50

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4284B: | | | | | |

 Flagler-------------|Very limited | |Very limited | |Very limited |

 | Seepage |1.00 | Seepage |1.00 | Seepage |1.00

 | Too sandy |0.50 | | | Too sandy |0.50

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4377B: | | | | | |

 Dinsdale------------|Very limited | |Very limited | |Somewhat limited |

 | Depth to |1.00 | Depth to |1.00 | Too clayey |0.50

 | saturated zone | | saturated zone | | |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4377C: | | | | | |

 Dinsdale------------|Very limited | |Very limited | |Somewhat limited |

 | Depth to |1.00 | Depth to |1.00 | Too clayey |0.50

 | saturated zone | | saturated zone | | |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4382: | | | | | |

 Maxfield------------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone | | saturated zone |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4391B: | | | | | |

 Clyde---------------|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 |0.50 | | | Too clayey |0.50

 | | | | | |

 Floyd---------------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone | | saturated zone |

 | | | Seepage |1.00 | |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |
Black Hawk County, Iowa 305

Table 14b.--Sanitary Facilities--Continued

___________________________________________________________________________________________________

 | | |

 Map symbol | Trench sanitary | Area sanitary | Daily cover for

 and soil name | landfill | landfill | landfill

 | | | _____________________________________________________________________________

 | Rating class and |Value| Rating class and |Value| Rating class and |Value

 | limiting features | | limiting features | | limiting features | ___________________________________________________________________________________________________

 | | | | | |

4398: | | | | | |

 Tripoli-------------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone | | saturated zone |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4399: | | | | | |

 Readlyn-------------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone | | saturated zone |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4408B: | | | | | |

 Olin----------------|Not limited | |Very limited | |Not limited |

 | | | Seepage |1.00 | |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4408C: | | | | | |

 Olin----------------|Not limited | |Very limited | |Not limited |

 | | | Seepage |1.00 | |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4426B: | | | | | |

 Aredale-------------|Not limited | |Very limited | |Somewhat limited |

 | | | Seepage |1.00 | Seepage |0.50

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4426C: | | | | | |

 Aredale-------------|Not limited | |Very limited | |Somewhat limited |

 | | | Seepage |1.00 | Seepage |0.50

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4585: | | | | | |

 Spillville, | | | | | |

 occasionally | | | | | |

 flooded------------|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 | | | |

 | | | | | |

 Coland, occasionally| | | | | |

 flooded------------|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 clayey |0.50

 | Seepage |1.00 | | | |

 | Too clayey |0.50 | | | |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |
306 Soil Survey of

Table 14b.--Sanitary Facilities--Continued

___________________________________________________________________________________________________

 | | |

 Map symbol | Trench sanitary | Area sanitary | Daily cover for

 and soil name | landfill | landfill | landfill

 | | | _____________________________________________________________________________

 | Rating class and |Value| Rating class and |Value| Rating class and |Value

 | limiting features | | limiting features | | limiting features | ___________________________________________________________________________________________________

 | | | | | |

4761: | | | | | |

 Franklin------------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone | | saturated zone |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4771B: | | | | | |

 Waubeek-------------|Very limited | |Very limited | |Somewhat limited |

 | Depth to |1.00 | Depth to |1.00 | Too clayey |0.50

 | saturated zone | | saturated zone | | |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4771D: | | | | | |

 Waubeek-------------|Very limited | |Very limited | |Somewhat limited |

 | Depth to |1.00 | Depth to |1.00 | Too clayey |0.50

 | saturated zone | | saturated zone | | Slope |0.04

 | Slope |0.04 | Slope |0.04 | |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4798: | | | | | |

 Protivin------------|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 |0.50 | | | Too clayey |0.50

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4911B: | | | | | |

 Colo----------------|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 clayey |0.50

 | Too clayey |0.50 | | | |

 | | | | | |

 Ely-----------------|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 |0.50 | | | Too clayey |0.50

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4933: | | | | | |

 Sawmill, | | | | | |

 occasionally | | | | | |

 flooded------------|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 clayey |0.50

 | Too clayey |0.50 | | | |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4946: | | | | | |

 Orthents, loamy-----|Not rated | |Not rated | |Not rated |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |
Black Hawk County, Iowa 307

Table 14b.--Sanitary Facilities--Continued

___________________________________________________________________________________________________

 | | |

 Map symbol | Trench sanitary | Area sanitary | Daily cover for

 and soil name | landfill | landfill | landfill

 | | | _____________________________________________________________________________

 | Rating class and |Value| Rating class and |Value| Rating class and |Value

 | limiting features | | limiting features | | limiting features | ___________________________________________________________________________________________________

 | | | | | |

5010: | | | | | |

 Pits, sand and | | | | | |

 gravel-------------|Not rated | |Not rated | |Not rated |

 | | | | | |

5030: | | | | | |

 Pits, limestone | | | | | |

 quarries-----------|Not rated | |Not rated | |Not rated |

 | | | | | |

5040: | | | | | |

 Orthents, loamy-----|Not rated | |Not rated | |Not rated |

 | | | | | |

5053: | | | | | |

 Psammaquents, | | | | | |

 frequently flooded |Not rated | |Very limited | |Not rated |

 | | | Flooding |1.00 | |

 | | | Depth to |1.00 | |

 | | | saturated zone | | |

 | | | | | |

5080: | | | | | |

 Orthents, sanitary | | | | | |

 landfill-----------|Not rated | |Not rated | |Not rated |

 | | | | | |

AW: | | | | | |

 Animal waste--------|Not rated | |Not rated | |Not rated |

 | | | | | |

SL: | | | | | |

 Sewage lagoon-------|Not rated | |Not rated | |Not rated |

 | | | | | |

W: | | | | | |

 Water---------------|Not rated | |Not rated | |Not rated |

 | | | | | | ___________________________________________________________________________________________________
308 Soil Survey of

Table 15a.--Construction Materials

(The information in this table indicates the dominant condition but does

 not eliminate the need for onsite investigation. The numbers in the

 value columns range from 0.00 to 0.99. The larger the value, the

 greater the likelihood that the soil is a source of the material.

 "Not rated" indicates that data are not available or that no rating

 is applicable. See text for further explanation of ratings in this

 table)

_________________________________________________________________________

 | |

 Map symbol | Potential as source | Potential as source

 and soil name | of gravel | of sand

 | | ___________________________________________________

 | Rating class |Value| Rating class |Value _________________________________________________________________________

 | | | |

7: | | | |

 Wiota---------------|Improbable | |Fair |

 | Thickest layer |0.00 | Thickest layer |0.00

 | Bottom layer |0.00 | Bottom layer |0.10

 | | | |

41: | | | |

 Sparta--------------|Improbable | |Fair |

 | Thickest layer |0.00 | Thickest layer |0.27

 | Bottom layer |0.00 | Bottom layer |0.35

 | | | |

41B: | | | |

 Sparta--------------|Improbable | |Fair |

 | Thickest layer |0.00 | Thickest layer |0.27

 | Bottom layer |0.00 | Bottom layer |0.35

 | | | |

41C: | | | |

 Sparta--------------|Improbable | |Fair |

 | Thickest layer |0.00 | Thickest layer |0.27

 | Bottom layer |0.00 | Bottom layer |0.35

 | | | |

41D: | | | |

 Sparta--------------|Improbable | |Fair |

 | Thickest layer |0.00 | Thickest layer |0.27

 | Bottom layer |0.00 | Bottom layer |0.35

 | | | |

63B: | | | |

 Chelsea-------------|Improbable | |Fair |

 | Thickest layer |0.00 | Bottom layer |0.12

 | Bottom layer |0.00 | Thickest layer |0.12

 | | | |

63C: | | | |

 Chelsea-------------|Improbable | |Fair |

 | Thickest layer |0.00 | Bottom layer |0.12

 | Bottom layer |0.00 | Thickest layer |0.12

 | | | |

63D: | | | |

 Chelsea-------------|Improbable | |Fair |

 | Thickest layer |0.00 | Bottom layer |0.12

 | Bottom layer |0.00 | Thickest layer |0.12

 | | | |

83B: | | | |

 Kenyon--------------|Improbable | |Poor |

 | Thickest layer |0.00 | Bottom layer |0.00

 | Bottom layer |0.00 | Thickest layer |0.00

 | | | |

83C: | | | |

 Kenyon--------------|Improbable | |Poor |

 | Thickest layer |0.00 | Bottom layer |0.00

 | Bottom layer |0.00 | Thickest layer |0.00

 | | | |
Black Hawk County, Iowa 309

Table 15a.--Construction Materials--Continued

_________________________________________________________________________

 | |

 Map symbol | Potential as source | Potential as source

 and soil name | of gravel | of sand

 | | ___________________________________________________

 | Rating class |Value| Rating class |Value _________________________________________________________________________

 | | | |

83C2: | | | |

 Kenyon, moderately | | | |

 eroded-------------|Improbable | |Poor |

 | Thickest layer |0.00 | Bottom layer |0.00

 | Bottom layer |0.00 | Thickest layer |0.00

 | | | |

83D2: | | | |

 Kenyon, moderately | | | |

 eroded-------------|Improbable | |Poor |

 | Thickest layer |0.00 | Bottom layer |0.00

 | Bottom layer |0.00 | Thickest layer |0.00

 | | | |

84: | | | |

 Clyde---------------|Improbable | |Poor |

 | Thickest layer |0.00 | Bottom layer |0.00

 | Bottom layer |0.00 | Thickest layer |0.00

 | | | |

88: | | | |

 Nevin---------------|Improbable | |Fair |

 | Thickest layer |0.00 | Thickest layer |0.00

 | Bottom layer |0.00 | Bottom layer |0.42

 | | | |

133: | | | |

 Colo, occasionally | | | |

 flooded------------|Improbable | |Poor |

 | Thickest layer |0.00 | Bottom layer |0.00

 | Bottom layer |0.00 | Thickest layer |0.00

 | | | |

135: | | | |

 Coland, occasionally| | | |

 flooded------------|Improbable | |Poor |

 | Thickest layer |0.00 | Thickest layer |0.00

 | Bottom layer |0.00 | Bottom layer |0.03

 | | | |

159: | | | |

 Finchford-----------|Possible | |Fair |

 | Thickest layer |0.08 | Bottom layer |0.46

 | Bottom layer |0.08 | Thickest layer |0.46

 | | | |

159C: | | | |

 Finchford-----------|Possible | |Fair |

 | Thickest layer |0.08 | Thickest layer |0.44

 | Bottom layer |0.08 | Bottom layer |0.46

 | | | |

171B: | | | |

 Bassett-------------|Improbable | |Poor |

 | Thickest layer |0.00 | Bottom layer |0.00

 | Bottom layer |0.00 | Thickest layer |0.00

 | | | |

175: | | | |

 Dickinson-----------|Improbable | |Fair |

 | Thickest layer |0.00 | Thickest layer |0.00

 | Bottom layer |0.00 | Bottom layer |0.36

 | | | |

175B: | | | |

 Dickinson-----------|Improbable | |Fair |

 | Thickest layer |0.00 | Thickest layer |0.00

 | Bottom layer |0.00 | Bottom layer |0.36

 | | | |
310 Soil Survey of

Table 15a.--Construction Materials--Continued

_________________________________________________________________________

 | |

 Map symbol | Potential as source | Potential as source

 and soil name | of gravel | of sand

 | | ___________________________________________________

 | Rating class |Value| Rating class |Value _________________________________________________________________________

 | | | |

177: | | | |

 Saude---------------|Possible | |Fair |

 | Thickest layer |0.00 | Thickest layer |0.08

 | Bottom layer |0.04 | Bottom layer |0.60

 | | | |

177B: | | | |

 Saude---------------|Possible | |Fair |

 | Thickest layer |0.00 | Thickest layer |0.08

 | Bottom layer |0.04 | Bottom layer |0.60

 | | | |

178: | | | |

 Waukee--------------|Possible | |Fair |

 | Thickest layer |0.00 | Thickest layer |0.00

 | Bottom layer |0.04 | Bottom layer |0.67

 | | | |

178B: | | | |

 Waukee--------------|Possible | |Fair |

 | Thickest layer |0.00 | Thickest layer |0.00

 | Bottom layer |0.04 | Bottom layer |0.67

 | | | |

184: | | | |

 Klinger-------------|Improbable | |Poor |

 | Thickest layer |0.00 | Bottom layer |0.00

 | Bottom layer |0.00 | Thickest layer |0.00

 | | | |

198B: | | | |

 Floyd---------------|Improbable | |Poor |

 | Thickest layer |0.00 | Bottom layer |0.00

 | Bottom layer |0.00 | Thickest layer |0.00

 | | | |

213B: | | | |

 Rockton, 30 to 40 | | | |

 inches to limestone|Improbable | |Poor |

 | Thickest layer |0.00 | Bottom layer |0.00

 | Bottom layer |0.00 | Thickest layer |0.00

 | | | |

221: | | | |

 Klossner------------|Improbable | |Poor |

 | Thickest layer |0.00 | Bottom layer |0.00

 | Bottom layer |0.00 | Thickest layer |0.00

 | | | |

284: | | | |

 Flagler-------------|Improbable | |Poor |

 | Thickest layer |0.00 | Thickest layer |0.04

 | Bottom layer |0.00 | Bottom layer |0.08

 | | | |

284B: | | | |

 Flagler-------------|Improbable | |Poor |

 | Thickest layer |0.00 | Thickest layer |0.04

 | Bottom layer |0.00 | Bottom layer |0.08

 | | | |

290: | | | |

 Dells---------------|Improbable | |Fair |

 | Thickest layer |0.00 | Thickest layer |0.00

 | Bottom layer |0.00 | Bottom layer |0.67

 | | | |

354: | | | |

 Aquolls, ponded-----|Not rated | |Not rated |

 | | | |
Black Hawk County, Iowa 311

Table 15a.--Construction Materials--Continued

_________________________________________________________________________

 | |

 Map symbol | Potential as source | Potential as source

 and soil name | of gravel | of sand

 | | ___________________________________________________

 | Rating class |Value| Rating class |Value _________________________________________________________________________

 | | | |

377B: | | | |

 Dinsdale------------|Improbable | |Poor |

 | Thickest layer |0.00 | Bottom layer |0.00

 | Bottom layer |0.00 | Thickest layer |0.00

 | | | |

377C: | | | |

 Dinsdale------------|Improbable | |Poor |

 | Thickest layer |0.00 | Bottom layer |0.00

 | Bottom layer |0.00 | Thickest layer |0.00

 | | | |

377C2: | | | |

 Dinsdale, moderately| | | |

 eroded-------------|Improbable | |Poor |

 | Thickest layer |0.00 | Bottom layer |0.00

 | Bottom layer |0.00 | Thickest layer |0.00

 | | | |

382: | | | |

 Maxfield------------|Improbable | |Poor |

 | Thickest layer |0.00 | Bottom layer |0.00

 | Bottom layer |0.00 | Thickest layer |0.00

 | | | |

391B: | | | |

 Clyde---------------|Improbable | |Poor |

 | Thickest layer |0.00 | Bottom layer |0.00

 | Bottom layer |0.00 | Thickest layer |0.00

 | | | |

 Floyd---------------|Improbable | |Poor |

 | Thickest layer |0.00 | Bottom layer |0.00

 | Bottom layer |0.00 | Thickest layer |0.00

 | | | |

395B: | | | |

 Marquis-------------|Improbable | |Poor |

 | Thickest layer |0.00 | Bottom layer |0.00

 | Bottom layer |0.00 | Thickest layer |0.00

 | | | |

398: | | | |

 Tripoli-------------|Improbable | |Poor |

 | Thickest layer |0.00 | Bottom layer |0.00

 | Bottom layer |0.00 | Thickest layer |0.00

 | | | |

399: | | | |

 Readlyn-------------|Improbable | |Poor |

 | Thickest layer |0.00 | Bottom layer |0.00

 | Bottom layer |0.00 | Thickest layer |0.00

 | | | |

408B: | | | |

 Olin----------------|Improbable | |Poor |

 | Thickest layer |0.00 | Bottom layer |0.00

 | Bottom layer |0.00 | Thickest layer |0.00

 | | | |

408C: | | | |

 Olin----------------|Improbable | |Poor |

 | Thickest layer |0.00 | Bottom layer |0.00

 | Bottom layer |0.00 | Thickest layer |0.00

 | | | |

412C: | | | |

 Emeline-------------|Improbable | |Poor |

 | Thickest layer |0.00 | Bottom layer |0.00

 | Bottom layer |0.00 | Thickest layer |0.00

 | | | |
312 Soil Survey of

Table 15a.--Construction Materials--Continued

_________________________________________________________________________

 | |

 Map symbol | Potential as source | Potential as source

 and soil name | of gravel | of sand

 | | ___________________________________________________

 | Rating class |Value| Rating class |Value _________________________________________________________________________

 | | | |

426B: | | | |

 Aredale-------------|Improbable | |Poor |

 | Thickest layer |0.00 | Bottom layer |0.00

 | Bottom layer |0.00 | Thickest layer |0.02

 | | | |

426C: | | | |

 Aredale-------------|Improbable | |Poor |

 | Thickest layer |0.00 | Bottom layer |0.00

 | Bottom layer |0.00 | Thickest layer |0.02

 | | | |

426C2: | | | |

 Aredale, moderately | | | |

 eroded-------------|Improbable | |Poor |

 | Thickest layer |0.00 | Bottom layer |0.00

 | Bottom layer |0.00 | Thickest layer |0.00

 | | | |

468B: | | | |

 Dunkerton-----------|Improbable | |Poor |

 | Thickest layer |0.00 | Bottom layer |0.00

 | Bottom layer |0.00 | Thickest layer |0.00

 | | | |

468C: | | | |

 Dunkerton-----------|Improbable | |Poor |

 | Thickest layer |0.00 | Bottom layer |0.00

 | Bottom layer |0.00 | Thickest layer |0.00

 | | | |

471: | | | |

 Oran----------------|Improbable | |Poor |

 | Thickest layer |0.00 | Bottom layer |0.00

 | Bottom layer |0.00 | Thickest layer |0.00

 | | | |

485: | | | |

 Spillville, | | | |

 occasionally | | | |

 flooded------------|Improbable | |Poor |

 | Thickest layer |0.00 | Bottom layer |0.00

 | Bottom layer |0.00 | Thickest layer |0.00

 | | | |

585: | | | |

 Spillville, | | | |

 occasionally | | | |

 flooded------------|Improbable | |Poor |

 | Thickest layer |0.00 | Bottom layer |0.00

 | Bottom layer |0.00 | Thickest layer |0.00

 | | | |

 Coland, occasionally| | | |

 flooded------------|Improbable | |Poor |

 | Thickest layer |0.00 | Thickest layer |0.00

 | Bottom layer |0.00 | Bottom layer |0.03

 | | | |

626: | | | |

 Hayfield, 24 to 40 | | | |

 inches to sand and | | | |

 gravel-------------|Improbable | |Fair |

 | Thickest layer |0.00 | Thickest layer |0.00

 | Bottom layer |0.00 | Bottom layer |0.54

 | | | |

761: | | | |

 Franklin------------|Improbable | |Poor |

 | Thickest layer |0.00 | Bottom layer |0.00

 | Bottom layer |0.00 | Thickest layer |0.00

 | | | |
Black Hawk County, Iowa 313

Table 15a.--Construction Materials--Continued

_________________________________________________________________________

 | |

 Map symbol | Potential as source | Potential as source

 and soil name | of gravel | of sand

 | | ___________________________________________________

 | Rating class |Value| Rating class |Value _________________________________________________________________________

 | | | |

771B: | | | |

 Waubeek-------------|Improbable | |Poor |

 | Thickest layer |0.00 | Bottom layer |0.00

 | Bottom layer |0.00 | Thickest layer |0.00

 | | | |

775B: | | | |

 Billett-------------|Improbable | |Poor |

 | Thickest layer |0.00 | Thickest layer |0.04

 | Bottom layer |0.00 | Bottom layer |0.08

 | | | |

776C: | | | |

 Lilah---------------|Possible | |Fair |

 | Bottom layer |0.00 | Bottom layer |0.08

 | Thickest layer |0.04 | Thickest layer |0.11

 | | | |

777: | | | |

 Wapsie--------------|Possible | |Fair |

 | Thickest layer |0.00 | Thickest layer |0.00

 | Bottom layer |0.04 | Bottom layer |0.41

 | | | |

781B: | | | |

 Lourdes-------------|Improbable | |Poor |

 | Thickest layer |0.00 | Bottom layer |0.00

 | Bottom layer |0.00 | Thickest layer |0.00

 | | | |

781C2: | | | |

 Lourdes, moderately | | | |

 eroded-------------|Improbable | |Poor |

 | Thickest layer |0.00 | Bottom layer |0.00

 | Bottom layer |0.00 | Thickest layer |0.00

 | | | |

782B: | | | |

 Donnan--------------|Improbable | |Poor |

 | Thickest layer |0.00 | Bottom layer |0.00

 | Bottom layer |0.00 | Thickest layer |0.00

 | | | |

798: | | | |

 Protivin------------|Improbable | |Poor |

 | Thickest layer |0.00 | Bottom layer |0.00

 | Bottom layer |0.00 | Thickest layer |0.00

 | | | |

809B: | | | |

 Bertram-------------|Improbable | |Poor |

 | Thickest layer |0.00 | Bottom layer |0.03

 | Bottom layer |0.00 | Thickest layer |0.03

 | | | |

877B: | | | |

 Dinsmore------------|Improbable | |Poor |

 | Thickest layer |0.00 | Bottom layer |0.00

 | Bottom layer |0.00 | Thickest layer |0.00

 | | | |

884: | | | |

 Klingmore-----------|Improbable | |Poor |

 | Thickest layer |0.00 | Bottom layer |0.00

 | Bottom layer |0.00 | Thickest layer |0.00

 | | | |

911B: | | | |

 Colo----------------|Improbable | |Poor |

 | Thickest layer |0.00 | Bottom layer |0.00

 | Bottom layer |0.00 | Thickest layer |0.00

 | | | |
314 Soil Survey of

Table 15a.--Construction Materials--Continued

_________________________________________________________________________

 | |

 Map symbol | Potential as source | Potential as source

 and soil name | of gravel | of sand

 | | ___________________________________________________

 | Rating class |Value| Rating class |Value _________________________________________________________________________

 | | | |

911B: | | | |

 Ely-----------------|Improbable | |Poor |

 | Thickest layer |0.00 | Bottom layer |0.00

 | Bottom layer |0.00 | Thickest layer |0.00

 | | | |

933: | | | |

 Sawmill, | | | |

 occasionally | | | |

 flooded------------|Improbable | |Poor |

 | Thickest layer |0.00 | Bottom layer |0.00

 | Bottom layer |0.00 | Thickest layer |0.00

 | | | |

982: | | | |

 Maxmore-------------|Improbable | |Poor |

 | Thickest layer |0.00 | Bottom layer |0.00

 | Bottom layer |0.00 | Thickest layer |0.00

 | | | |

1152: | | | |

 Marshan, 24 to 40 | | | |

 inches to sand and | | | |

 gravel-------------|Possible | |Fair |

 | Thickest layer |0.00 | Thickest layer |0.29

 | Bottom layer |0.04 | Bottom layer |0.82

 | | | |

1226: | | | |

 Lawler, 24 to 40 | | | |

 inches to sand and | | | |

 gravel-------------|Possible | |Poor |

 | Thickest layer |0.00 | Thickest layer |0.00

 | Bottom layer |0.04 | Bottom layer |0.08

 | | | |

1285G: | | | |

 Burkhardt-----------|Possible | |Fair |

 | Thickest layer |0.00 | Thickest layer |0.03

 | Bottom layer |0.12 | Bottom layer |0.87

 | | | |

 Bassett-------------|Improbable | |Poor |

 | Thickest layer |0.00 | Bottom layer |0.00

 | Bottom layer |0.00 | Thickest layer |0.00

 | | | |

 Chelsea-------------|Improbable | |Fair |

 | Thickest layer |0.00 | Thickest layer |0.12

 | Bottom layer |0.00 | Bottom layer |0.19

 | | | |

1585: | | | |

 Spillville, | | | |

 frequently flooded |Improbable | |Poor |

 | Thickest layer |0.00 | Bottom layer |0.00

 | Bottom layer |0.00 | Thickest layer |0.00

 | | | |

 Coland, frequently | | | |

 flooded------------|Improbable | |Poor |

 | Thickest layer |0.00 | Thickest layer |0.00

 | Bottom layer |0.00 | Bottom layer |0.03

 | | | |

 Aquolls, ponded-----|Not rated | |Not rated |

 | | | |
Black Hawk County, Iowa 315

Table 15a.--Construction Materials--Continued

_________________________________________________________________________

 | |

 Map symbol | Potential as source | Potential as source

 and soil name | of gravel | of sand

 | | ___________________________________________________

 | Rating class |Value| Rating class |Value _________________________________________________________________________

 | | | |

1586: | | | |

 Sigglekov, | | | |

 frequently flooded |Improbable | |Fair |

 | Thickest layer |0.00 | Thickest layer |0.41

 | Bottom layer |0.00 | Bottom layer |0.52

 | | | |

 Fluvaquents, | | | |

 frequently flooded |Not rated | |Not rated |

 | | | |

 Aquents, ponded-----|Not rated | |Not rated |

 | | | |

4000: | | | |

 Urban land----------|Not rated | |Not rated |

 | | | |

4007: | | | |

 Wiota---------------|Improbable | |Fair |

 | Thickest layer |0.00 | Thickest layer |0.00

 | Bottom layer |0.00 | Bottom layer |0.10

 | | | |

 Urban land----------|Not rated | |Not rated |

 | | | |

4041: | | | |

 Sparta--------------|Improbable | |Fair |

 | Thickest layer |0.00 | Thickest layer |0.27

 | Bottom layer |0.00 | Bottom layer |0.35

 | | | |

 Urban land----------|Not rated | |Not rated |

 | | | |

4041B: | | | |

 Sparta--------------|Improbable | |Fair |

 | Thickest layer |0.00 | Thickest layer |0.27

 | Bottom layer |0.00 | Bottom layer |0.35

 | | | |

 Urban land----------|Not rated | |Not rated |

 | | | |

4041C: | | | |

 Sparta--------------|Improbable | |Fair |

 | Thickest layer |0.00 | Thickest layer |0.27

 | Bottom layer |0.00 | Bottom layer |0.35

 | | | |

 Urban land----------|Not rated | |Not rated |

 | | | |

4041D: | | | |

 Sparta--------------|Improbable | |Fair |

 | Thickest layer |0.00 | Thickest layer |0.27

 | Bottom layer |0.00 | Bottom layer |0.35

 | | | |

 Urban land----------|Not rated | |Not rated |

 | | | |

4063B: | | | |

 Chelsea-------------|Improbable | |Fair |

 | Thickest layer |0.00 | Bottom layer |0.12

 | Bottom layer |0.00 | Thickest layer |0.12

 | | | |

 Urban land----------|Not rated | |Not rated |

 | | | |

4063C: | | | |

 Chelsea-------------|Improbable | |Fair |

 | Thickest layer |0.00 | Bottom layer |0.12

 | Bottom layer |0.00 | Thickest layer |0.12

 | | | |
316 Soil Survey of

Table 15a.--Construction Materials--Continued

_________________________________________________________________________

 | |

 Map symbol | Potential as source | Potential as source

 and soil name | of gravel | of sand

 | | ___________________________________________________

 | Rating class |Value| Rating class |Value _________________________________________________________________________

 | | | |

4063C: | | | |

 Urban land----------|Not rated | |Not rated |

 | | | |

4063D: | | | |

 Chelsea-------------|Improbable | |Fair |

 | Thickest layer |0.00 | Bottom layer |0.12

 | Bottom layer |0.00 | Thickest layer |0.12

 | | | |

 Urban land----------|Not rated | |Not rated |

 | | | |

4083B: | | | |

 Kenyon--------------|Improbable | |Poor |

 | Thickest layer |0.00 | Bottom layer |0.00

 | Bottom layer |0.00 | Thickest layer |0.00

 | | | |

 Urban land----------|Not rated | |Not rated |

 | | | |

4083C: | | | |

 Kenyon--------------|Improbable | |Poor |

 | Thickest layer |0.00 | Bottom layer |0.00

 | Bottom layer |0.00 | Thickest layer |0.00

 | | | |

 Urban land----------|Not rated | |Not rated |

 | | | |

4083D: | | | |

 Kenyon--------------|Improbable | |Poor |

 | Thickest layer |0.00 | Bottom layer |0.00

 | Bottom layer |0.00 | Thickest layer |0.00

 | | | |

 Urban land----------|Not rated | |Not rated |

 | | | |

4084: | | | |

 Clyde---------------|Improbable | |Poor |

 | Thickest layer |0.00 | Bottom layer |0.00

 | Bottom layer |0.00 | Thickest layer |0.00

 | | | |

 Urban land----------|Not rated | |Not rated |

 | | | |

4088: | | | |

 Nevin---------------|Improbable | |Fair |

 | Thickest layer |0.00 | Thickest layer |0.00

 | Bottom layer |0.00 | Bottom layer |0.42

 | | | |

 Urban land----------|Not rated | |Not rated |

 | | | |

4133: | | | |

 Colo, occasionally | | | |

 flooded------------|Improbable | |Poor |

 | Thickest layer |0.00 | Bottom layer |0.00

 | Bottom layer |0.00 | Thickest layer |0.00

 | | | |

 Urban land----------|Not rated | |Not rated |

 | | | |

4135: | | | |

 Coland, occasionally| | | |

 flooded------------|Improbable | |Poor |

 | Thickest layer |0.00 | Thickest layer |0.00

 | Bottom layer |0.00 | Bottom layer |0.03

 | | | |

 Urban land----------|Not rated | |Not rated |

 | | | |
Black Hawk County, Iowa 317

Table 15a.--Construction Materials--Continued

_________________________________________________________________________

 | |

 Map symbol | Potential as source | Potential as source

 and soil name | of gravel | of sand

 | | ___________________________________________________

 | Rating class |Value| Rating class |Value _________________________________________________________________________

 | | | |

4152: | | | |

 Marshan, 24 to 40 | | | |

 inches to sand and | | | |

 gravel-------------|Possible | |Fair |

 | Thickest layer |0.00 | Thickest layer |0.29

 | Bottom layer |0.04 | Bottom layer |0.82

 | | | |

 Urban land----------|Not rated | |Not rated |

 | | | |

4159: | | | |

 Finchford-----------|Possible | |Fair |

 | Thickest layer |0.08 | Bottom layer |0.46

 | Bottom layer |0.08 | Thickest layer |0.46

 | | | |

 Urban land----------|Not rated | |Not rated |

 | | | |

4159C: | | | |

 Finchford-----------|Possible | |Fair |

 | Thickest layer |0.08 | Thickest layer |0.44

 | Bottom layer |0.08 | Bottom layer |0.46

 | | | |

 Urban land----------|Not rated | |Not rated |

 | | | |

4171B: | | | |

 Bassett-------------|Improbable | |Poor |

 | Thickest layer |0.00 | Bottom layer |0.00

 | Bottom layer |0.00 | Thickest layer |0.00

 | | | |

 Urban land----------|Not rated | |Not rated |

 | | | |

4171D: | | | |

 Bassett-------------|Improbable | |Poor |

 | Thickest layer |0.00 | Bottom layer |0.00

 | Bottom layer |0.00 | Thickest layer |0.00

 | | | |

 Urban land----------|Not rated | |Not rated |

 | | | |

4175: | | | |

 Dickinson-----------|Improbable | |Fair |

 | Thickest layer |0.00 | Thickest layer |0.00

 | Bottom layer |0.00 | Bottom layer |0.36

 | | | |

 Urban land----------|Not rated | |Not rated |

 | | | |

4175B: | | | |

 Dickinson-----------|Improbable | |Fair |

 | Thickest layer |0.00 | Thickest layer |0.00

 | Bottom layer |0.00 | Bottom layer |0.36

 | | | |

 Urban land----------|Not rated | |Not rated |

 | | | |

4177: | | | |

 Saude---------------|Possible | |Fair |

 | Thickest layer |0.00 | Thickest layer |0.08

 | Bottom layer |0.04 | Bottom layer |0.60

 | | | |

 Urban land----------|Not rated | |Not rated |

 | | | |
318 Soil Survey of

Table 15a.--Construction Materials--Continued

_________________________________________________________________________

 | |

 Map symbol | Potential as source | Potential as source

 and soil name | of gravel | of sand

 | | ___________________________________________________

 | Rating class |Value| Rating class |Value _________________________________________________________________________

 | | | |

4177B: | | | |

 Saude---------------|Possible | |Fair |

 | Thickest layer |0.00 | Thickest layer |0.08

 | Bottom layer |0.04 | Bottom layer |0.60

 | | | |

 Urban land----------|Not rated | |Not rated |

 | | | |

4178: | | | |

 Waukee--------------|Possible | |Fair |

 | Thickest layer |0.00 | Thickest layer |0.00

 | Bottom layer |0.04 | Bottom layer |0.67

 | | | |

 Urban land----------|Not rated | |Not rated |

 | | | |

4184: | | | |

 Klinger-------------|Improbable | |Poor |

 | Thickest layer |0.00 | Bottom layer |0.00

 | Bottom layer |0.00 | Thickest layer |0.00

 | | | |

 Urban land----------|Not rated | |Not rated |

 | | | |

4198B: | | | |

 Floyd---------------|Improbable | |Poor |

 | Thickest layer |0.00 | Bottom layer |0.00

 | Bottom layer |0.00 | Thickest layer |0.00

 | | | |

 Urban land----------|Not rated | |Not rated |

 | | | |

4226: | | | |

 Lawler, 24 to 40 | | | |

 inches to sand and | | | |

 gravel-------------|Possible | |Poor |

 | Thickest layer |0.00 | Thickest layer |0.00

 | Bottom layer |0.04 | Bottom layer |0.08

 | | | |

 Urban land----------|Not rated | |Not rated |

 | | | |

4284: | | | |

 Flagler-------------|Improbable | |Poor |

 | Thickest layer |0.00 | Thickest layer |0.04

 | Bottom layer |0.00 | Bottom layer |0.08

 | | | |

 Urban land----------|Not rated | |Not rated |

 | | | |

4284B: | | | |

 Flagler-------------|Improbable | |Poor |

 | Thickest layer |0.00 | Thickest layer |0.04

 | Bottom layer |0.00 | Bottom layer |0.08

 | | | |

 Urban land----------|Not rated | |Not rated |

 | | | |

4377B: | | | |

 Dinsdale------------|Improbable | |Poor |

 | Thickest layer |0.00 | Bottom layer |0.00

 | Bottom layer |0.00 | Thickest layer |0.00

 | | | |

 Urban land----------|Not rated | |Not rated |

 | | | |
Black Hawk County, Iowa 319

Table 15a.--Construction Materials--Continued

_________________________________________________________________________

 | |

 Map symbol | Potential as source | Potential as source

 and soil name | of gravel | of sand

 | | ___________________________________________________

 | Rating class |Value| Rating class |Value _________________________________________________________________________

 | | | |

4377C: | | | |

 Dinsdale------------|Improbable | |Poor |

 | Thickest layer |0.00 | Bottom layer |0.00

 | Bottom layer |0.00 | Thickest layer |0.00

 | | | |

 Urban land----------|Not rated | |Not rated |

 | | | |

4382: | | | |

 Maxfield------------|Improbable | |Poor |

 | Thickest layer |0.00 | Bottom layer |0.00

 | Bottom layer |0.00 | Thickest layer |0.00

 | | | |

 Urban land----------|Not rated | |Not rated |

 | | | |

4391B: | | | |

 Clyde---------------|Improbable | |Poor |

 | Thickest layer |0.00 | Bottom layer |0.00

 | Bottom layer |0.00 | Thickest layer |0.00

 | | | |

 Floyd---------------|Improbable | |Poor |

 | Thickest layer |0.00 | Bottom layer |0.00

 | Bottom layer |0.00 | Thickest layer |0.00

 | | | |

 Urban land----------|Not rated | |Not rated |

 | | | |

4398: | | | |

 Tripoli-------------|Improbable | |Poor |

 | Thickest layer |0.00 | Bottom layer |0.00

 | Bottom layer |0.00 | Thickest layer |0.00

 | | | |

 Urban land----------|Not rated | |Not rated |

 | | | |

4399: | | | |

 Readlyn-------------|Improbable | |Poor |

 | Thickest layer |0.00 | Bottom layer |0.00

 | Bottom layer |0.00 | Thickest layer |0.00

 | | | |

 Urban land----------|Not rated | |Not rated |

 | | | |

4408B: | | | |

 Olin----------------|Improbable | |Poor |

 | Thickest layer |0.00 | Bottom layer |0.00

 | Bottom layer |0.00 | Thickest layer |0.00

 | | | |

 Urban land----------|Not rated | |Not rated |

 | | | |

4408C: | | | |

 Olin----------------|Improbable | |Poor |

 | Thickest layer |0.00 | Bottom layer |0.00

 | Bottom layer |0.00 | Thickest layer |0.00

 | | | |

 Urban land----------|Not rated | |Not rated |

 | | | |

4426B: | | | |

 Aredale-------------|Improbable | |Poor |

 | Thickest layer |0.00 | Bottom layer |0.00

 | Bottom layer |0.00 | Thickest layer |0.02

 | | | |

 Urban land----------|Not rated | |Not rated |

 | | | |
320 Soil Survey of

Table 15a.--Construction Materials--Continued

_________________________________________________________________________

 | |

 Map symbol | Potential as source | Potential as source

 and soil name | of gravel | of sand

 | | ___________________________________________________

 | Rating class |Value| Rating class |Value _________________________________________________________________________

 | | | |

4426C: | | | |

 Aredale-------------|Improbable | |Poor |

 | Thickest layer |0.00 | Bottom layer |0.00

 | Bottom layer |0.00 | Thickest layer |0.02

 | | | |

 Urban land----------|Not rated | |Not rated |

 | | | |

4585: | | | |

 Spillville, | | | |

 occasionally | | | |

 flooded------------|Improbable | |Poor |

 | Thickest layer |0.00 | Bottom layer |0.00

 | Bottom layer |0.00 | Thickest layer |0.00

 | | | |

 Coland, occasionally| | | |

 flooded------------|Improbable | |Poor |

 | Thickest layer |0.00 | Thickest layer |0.00

 | Bottom layer |0.00 | Bottom layer |0.03

 | | | |

 Urban land----------|Not rated | |Not rated |

 | | | |

4761: | | | |

 Franklin------------|Improbable | |Poor |

 | Thickest layer |0.00 | Bottom layer |0.00

 | Bottom layer |0.00 | Thickest layer |0.00

 | | | |

 Urban land----------|Not rated | |Not rated |

 | | | |

4771B: | | | |

 Waubeek-------------|Improbable | |Poor |

 | Thickest layer |0.00 | Bottom layer |0.00

 | Bottom layer |0.00 | Thickest layer |0.00

 | | | |

 Urban land----------|Not rated | |Not rated |

 | | | |

4771D: | | | |

 Waubeek-------------|Improbable | |Poor |

 | Thickest layer |0.00 | Bottom layer |0.00

 | Bottom layer |0.00 | Thickest layer |0.00

 | | | |

 Urban land----------|Not rated | |Not rated |

 | | | |

4798: | | | |

 Protivin------------|Improbable | |Poor |

 | Thickest layer |0.00 | Bottom layer |0.00

 | Bottom layer |0.00 | Thickest layer |0.00

 | | | |

 Urban land----------|Not rated | |Not rated |

 | | | |

4911B: | | | |

 Colo----------------|Improbable | |Poor |

 | Thickest layer |0.00 | Bottom layer |0.00

 | Bottom layer |0.00 | Thickest layer |0.00

 | | | |

 Ely-----------------|Improbable | |Poor |

 | Thickest layer |0.00 | Bottom layer |0.00

 | Bottom layer |0.00 | Thickest layer |0.00

 | | | |

 Urban land----------|Not rated | |Not rated |

 | | | |
Black Hawk County, Iowa 321

Table 15a.--Construction Materials--Continued

_________________________________________________________________________

 | |

 Map symbol | Potential as source | Potential as source

 and soil name | of gravel | of sand

 | | ___________________________________________________

 | Rating class |Value| Rating class |Value _________________________________________________________________________

 | | | |

4933: | | | |

 Sawmill, | | | |

 occasionally | | | |

 flooded------------|Improbable | |Poor |

 | Thickest layer |0.00 | Bottom layer |0.00

 | Bottom layer |0.00 | Thickest layer |0.00

 | | | |

 Urban land----------|Not rated | |Not rated |

 | | | |

4946: | | | |

 Orthents, loamy-----|Not rated | |Not rated |

 | | | |

 Urban land----------|Not rated | |Not rated |

 | | | |

5010: | | | |

 Pits, sand and | | | |

 gravel-------------|Not rated | |Not rated |

 | | | |

5030: | | | |

 Pits, limestone | | | |

 quarries-----------|Not rated | |Not rated |

 | | | |

5040: | | | |

 Orthents, loamy-----|Not rated | |Not rated |

 | | | |

5053: | | | |

 Psammaquents, | | | |

 frequently flooded |Not rated | |Not rated |

 | | | |

5080: | | | |

 Orthents, sanitary | | | |

 landfill-----------|Not rated | |Not rated |

 | | | |

AW: | | | |

 Animal waste--------|Not rated | |Not rated |

 | | | |

SL: | | | |

 Sewage lagoon-------|Not rated | |Not rated |

 | | | |

W: | | | |

 Water---------------|Not rated | |Not rated |

 | | | | _________________________________________________________________________
322 Soil Survey of

Table 15b.--Construction Materials

(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. "Not rated" indicates that data are not

 available or that no rating is applicable. See text for further explanation of ratings in

 this table)

___________________________________________________________________________________________________

 | | |

 Map symbol | Potential as source | Potential as source | Potential as source

 and soil name | of reclamation material | of roadfill | of topsoil

 | | | _____________________________________________________________________________

 | Rating class and |Value| Rating class and |Value| Rating class and |Value

 | limiting features | | limiting features | | limiting features | ___________________________________________________________________________________________________

 | | | | | |

7: | | | | | |

 Wiota---------------|Fair | |Fair | |Good |

 | Low content of |0.88 | Shrink-swell |0.99 | |

 | organic matter | | | | |

 | Water erosion |0.90 | | | |

 | Too acid |0.92 | | | |

 | | | | | |

41: | | | | | |

 Sparta--------------|Poor | |Good | |Poor |

 | Too sandy |0.00 | | | Too sandy |0.00

 | Wind erosion |0.00 | | | |

 | Low content of |0.12 | | | |

 | organic matter | | | | |

 | Droughty |0.68 | | | |

 | Too acid |0.68 | | | |

 | | | | | |

41B: | | | | | |

 Sparta--------------|Poor | |Good | |Poor |

 | Too sandy |0.00 | | | Too sandy |0.00

 | Wind erosion |0.00 | | | |

 | Low content of |0.12 | | | |

 | organic matter | | | | |

 | Droughty |0.68 | | | |

 | Too acid |0.68 | | | |

 | | | | | |

41C: | | | | | |

 Sparta--------------|Poor | |Good | |Poor |

 | Too sandy |0.00 | | | Too sandy |0.00

 | Wind erosion |0.00 | | | |

 | Low content of |0.12 | | | |

 | organic matter | | | | |

 | Droughty |0.64 | | | |

 | Too acid |0.68 | | | |

 | | | | | |

41D: | | | | | |

 Sparta--------------|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 | | | | |

 | Droughty |0.62 | | | |

 | Too acid |0.68 | | | |

 | | | | | |

63B: | | | | | |

 Chelsea-------------|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 | | | |

 | Droughty |0.94 | | | |

 | | | | | |
Black Hawk County, Iowa 323

Table 15b.--Construction Materials

___________________________________________________________________________________________________

 | | |

 Map symbol | Potential as source | Potential as source | Potential as source

 and soil name | of reclamation material | of roadfill | of topsoil

 | | | _____________________________________________________________________________

 | Rating class and |Value| Rating class and |Value| Rating class and |Value

 | limiting features | | limiting features | | limiting features | ___________________________________________________________________________________________________

 | | | | | |

63C: | | | | | |

 Chelsea-------------|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 | | | |

 | Droughty |0.94 | | | |

 | | | | | |

63D: | | | | | |

 Chelsea-------------|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 | | | | |

 | Too acid |0.84 | | | |

 | Droughty |0.94 | | | |

 | | | | | |

83B: | | | | | |

 Kenyon--------------|Fair | |Fair | |Good |

 | Low content of |0.50 | Low strength |0.78 | |

 | organic matter | | | | |

 | Too acid |0.97 | | | |

 | | | | | |

83C: | | | | | |

 Kenyon--------------|Fair | |Fair | |Good |

 | Low content of |0.50 | Low strength |0.78 | |

 | organic matter | | | | |

 | Too acid |0.97 | | | |

 | | | | | |

83C2: | | | | | |

 Kenyon, moderately | | | | | |

 eroded-------------|Fair | |Good | |Good |

 | Low content of |0.50 | | | |

 | organic matter | | | | |

 | Too acid |0.97 | | | |

 | | | | | |

83D2: | | | | | |

 Kenyon, moderately | | | | | |

 eroded-------------|Fair | |Good | |Fair |

 | Low content of |0.50 | | | Slope |0.37

 | organic matter | | | | |

 | Too acid |0.97 | | | |

 | | | | | |

84: | | | | | |

 Clyde---------------|Fair | |Poor | |Poor |

 | Water erosion |0.99 | Depth to |0.00 | Depth to |0.00

 | | | saturated zone | | saturated zone |

 | | | Low strength |0.22 | |

 | | | Shrink-swell |0.99 | |

 | | | | | |

88: | | | | | |

 Nevin---------------|Fair | |Poor | |Fair |

 | Too acid |0.99 | Depth to |0.00 | Depth to |0.50

 | | | saturated zone | | saturated zone |

 | | | Shrink-swell |0.94 | |

 | | | | | |
324 Soil Survey of

Table 15b.--Construction Materials

___________________________________________________________________________________________________

 | | |

 Map symbol | Potential as source | Potential as source | Potential as source

 and soil name | of reclamation material | of roadfill | of topsoil

 | | | _____________________________________________________________________________

 | Rating class and |Value| Rating class and |Value| Rating class and |Value

 | limiting features | | limiting features | | limiting features | ___________________________________________________________________________________________________

 | | | | | |

133: | | | | | |

 Colo, occasionally | | | | | |

 flooded------------|Fair | |Poor | |Poor |

 | Too clayey |0.98 | Depth to |0.00 | Depth to |0.00

 | | | saturated zone | | saturated zone |

 | | | Low strength |0.00 | Too clayey |0.00

 | | | Shrink-swell |0.90 | |

 | | | | | |

135: | | | | | |

 Coland, occasionally| | | | | |

 flooded------------|Fair | |Poor | |Poor |

 | Too clayey |0.98 | Depth to |0.00 | Depth to |0.00

 | | | saturated zone | | saturated zone |

 | | | Low strength |0.00 | Too clayey |0.00

 | | | | | |

159: | | | | | |

 Finchford-----------|Poor | |Good | |Poor |

 | Too sandy |0.00 | | | Too sandy |0.00

 | Wind erosion |0.00 | | | Hard to reclaim |0.68

 | Low content of |0.12 | | | |

 | organic matter | | | | |

 | Droughty |0.29 | | | |

 | Too acid |0.74 | | | |

 | | | | | |

159C: | | | | | |

 Finchford-----------|Poor | |Good | |Poor |

 | Too sandy |0.00 | | | Too sandy |0.00

 | Wind erosion |0.00 | | | Rock fragments |0.00

 | Low content of |0.12 | | | Hard to reclaim |0.68

 | organic matter | | | | |

 | Droughty |0.17 | | | |

 | Too acid |0.74 | | | |

 | | | | | |

171B: | | | | | |

 Bassett-------------|Fair | |Fair | |Good |

 | Low content of |0.12 | Depth to |0.53 | |

 | organic matter | | saturated zone | | |

 | Too acid |0.88 | Low strength |0.78 | |

 | | | | | |

175: | | | | | |

 Dickinson-----------|Fair | |Good | |Good |

 | Low content of |0.12 | | | |

 | organic matter | | | | |

 | Too acid |0.84 | | | |

 | Droughty |0.95 | | | |

 | | | | | |

175B: | | | | | |

 Dickinson-----------|Fair | |Good | |Good |

 | Low content of |0.12 | | | |

 | organic matter | | | | |

 | Too acid |0.84 | | | |

 | Droughty |0.95 | | | |

 | | | | | |

177: | | | | | |

 Saude---------------|Fair | |Good | |Fair |

 | Low content of |0.12 | | | Hard to reclaim |0.82

 | organic matter | | | | |

 | Too acid |0.74 | | | |

 | | | | | |
Black Hawk County, Iowa 325

Table 15b.--Construction Materials

___________________________________________________________________________________________________

 | | |

 Map symbol | Potential as source | Potential as source | Potential as source

 and soil name | of reclamation material | of roadfill | of topsoil

 | | | _____________________________________________________________________________

 | Rating class and |Value| Rating class and |Value| Rating class and |Value

 | limiting features | | limiting features | | limiting features | ___________________________________________________________________________________________________

 | | | | | |

177B: | | | | | |

 Saude---------------|Fair | |Good | |Fair |

 | Low content of |0.12 | | | Hard to reclaim |0.82

 | organic matter | | | | |

 | Too acid |0.74 | | | |

 | | | | | |

178: | | | | | |

 Waukee--------------|Fair | |Good | |Good |

 | Low content of |0.12 | | | Hard to reclaim |0.98

 | organic matter | | | | |

 | Too acid |0.74 | | | |

 | | | | | |

178B: | | | | | |

 Waukee--------------|Fair | |Good | |Good |

 | Low content of |0.12 | | | Hard to reclaim |0.98

 | organic matter | | | | |

 | Too acid |0.74 | | | |

 | | | | | |

184: | | | | | |

 Klinger-------------|Fair | |Poor | |Fair |

 | Low content of |0.12 | Depth to |0.00 | Depth to |0.50

 | organic matter | | saturated zone | | saturated zone |

 | Too acid |0.84 | Low strength |0.78 | |

 | Water erosion |0.90 | | | |

 | | | | | |

198B: | | | | | |

 Floyd---------------|Good | |Poor | |Fair |

 | | | Depth to |0.00 | Depth to |0.50

 | | | saturated zone | | saturated zone |

 | | | | | |

213B: | | | | | |

 Rockton, 30 to 40 | | | | | |

 inches to limestone|Fair | |Poor | |Good |

 | Too acid |0.84 | Depth to bedrock |0.00 | Depth to bedrock |0.90

 | Depth to bedrock |0.90 | Low strength |0.78 | |

 | | | Shrink-swell |0.88 | |

 | | | | | |

221: | | | | | |

 Klossner------------|Poor | |Poor | |Poor |

 | Wind erosion |0.00 | Depth to |0.00 | Depth to |0.00

 | Too acid |0.97 | saturated zone | | saturated zone |

 | Water erosion |0.99 | | | Content of |0.00

 | | | | | organic matter |

 | | | | | |

284: | | | | | |

 Flagler-------------|Fair | |Good | |Good |

 | Low content of |0.12 | | | |

 | organic matter | | | | |

 | Too acid |0.84 | | | |

 | Droughty |0.87 | | | |

 | | | | | |

284B: | | | | | |

 Flagler-------------|Fair | |Good | |Good |

 | Low content of |0.12 | | | |

 | organic matter | | | | |

 | Too acid |0.84 | | | |

 | Droughty |0.87 | | | |

 | | | | | |
326 Soil Survey of

Table 15b.--Construction Materials

___________________________________________________________________________________________________

 | | |

 Map symbol | Potential as source | Potential as source | Potential as source

 and soil name | of reclamation material | of roadfill | of topsoil

 | | | _____________________________________________________________________________

 | Rating class and |Value| Rating class and |Value| Rating class and |Value

 | limiting features | | limiting features | | limiting features | ___________________________________________________________________________________________________

 | | | | | |

290: | | | | | |

 Dells---------------|Fair | |Poor | |Fair |

 | Low content of |0.12 | Depth to |0.00 | Depth to |0.50

 | organic matter | | saturated zone | | saturated zone |

 | Too acid |0.97 | | | |

 | Water erosion |0.99 | | | |

 | | | | | |

354: | | | | | |

 Aquolls, ponded-----|Not rated | |Not rated | |Not rated |

 | | | | | |

377B: | | | | | |

 Dinsdale------------|Fair | |Fair | |Poor |

 | Low content of |0.12 | Low strength |0.78 | Too clayey |0.00

 | organic matter | | Shrink-swell |0.99 | |

 | Water erosion |0.90 | | | |

 | Too clayey |0.92 | | | |

 | Too acid |0.97 | | | |

 | | | | | |

377C: | | | | | |

 Dinsdale------------|Fair | |Fair | |Poor |

 | Low content of |0.12 | Low strength |0.78 | Too clayey |0.00

 | organic matter | | Shrink-swell |0.99 | |

 | Water erosion |0.90 | | | |

 | Too clayey |0.92 | | | |

 | Too acid |0.97 | | | |

 | | | | | |

377C2: | | | | | |

 Dinsdale, moderately| | | | | |

 eroded-------------|Fair | |Fair | |Poor |

 | Low content of |0.12 | Low strength |0.78 | Too clayey |0.00

 | organic matter | | | | |

 | Water erosion |0.90 | | | |

 | Too clayey |0.92 | | | |

 | Too acid |0.97 | | | |

 | | | | | |

382: | | | | | |

 Maxfield------------|Fair | |Poor | |Poor |

 | Low content of |0.12 | Depth to |0.00 | Depth to |0.00

 | organic matter | | saturated zone | | saturated zone |

 | Too clayey |0.98 | Low strength |0.78 | Too clayey |0.00

 | | | | | |

391B: | | | | | |

 Clyde---------------|Fair | |Poor | |Poor |

 | Water erosion |0.99 | Depth to |0.00 | Depth to |0.00

 | | | saturated zone | | saturated zone |

 | | | Low strength |0.22 | |

 | | | Shrink-swell |0.99 | |

 | | | | | |

 Floyd---------------|Good | |Poor | |Fair |

 | | | Depth to |0.00 | Depth to |0.50

 | | | saturated zone | | saturated zone |

 | | | | | |

395B: | | | | | |

 Marquis-------------|Fair | |Fair | |Good |

 | Low content of |0.50 | Depth to |0.53 | |

 | organic matter | | saturated zone | | |

 | Too acid |0.97 | | | |

 | Water erosion |0.99 | | | |

 | | | | | |
Black Hawk County, Iowa 327

Table 15b.--Construction Materials

___________________________________________________________________________________________________

 | | |

 Map symbol | Potential as source | Potential as source | Potential as source

 and soil name | of reclamation material | of roadfill | of topsoil

 | | | _____________________________________________________________________________

 | Rating class and |Value| Rating class and |Value| Rating class and |Value

 | limiting features | | limiting features | | limiting features | ___________________________________________________________________________________________________

 | | | | | |

398: | | | | | |

 Tripoli-------------|Fair | |Poor | |Poor |

 | Low content of |0.12 | Depth to |0.00 | Depth to |0.00

 | organic matter | | saturated zone | | saturated zone |

 | | | | | |

399: | | | | | |

 Readlyn-------------|Fair | |Poor | |Fair |

 | Too acid |0.84 | Depth to |0.00 | Depth to |0.50

 | | | saturated zone | | saturated zone |

 | | | | | |

408B: | | | | | |

 Olin----------------|Fair | |Good | |Good |

 | Low content of |0.12 | | | |

 | organic matter | | | | |

 | Too acid |0.74 | | | |

 | Water erosion |0.99 | | | |

 | | | | | |

408C: | | | | | |

 Olin----------------|Fair | |Good | |Good |

 | Low content of |0.12 | | | |

 | organic matter | | | | |

 | Too acid |0.74 | | | |

 | Water erosion |0.99 | | | |

 | | | | | |

412C: | | | | | |

 Emeline-------------|Poor | |Poor | |Poor |

 | Droughty |0.00 | Depth to bedrock |0.00 | Depth to bedrock |0.00

 | Depth to bedrock |0.00 | Low strength |0.00 | |

 | | | | | |

426B: | | | | | |

 Aredale-------------|Fair | |Good | |Good |

 | Low content of |0.12 | | | |

 | organic matter | | | | |

 | Too acid |0.74 | | | |

 | | | | | |

426C: | | | | | |

 Aredale-------------|Fair | |Good | |Good |

 | Low content of |0.12 | | | |

 | organic matter | | | | |

 | Too acid |0.74 | | | |

 | | | | | |

426C2: | | | | | |

 Aredale, moderately | | | | | |

 eroded-------------|Fair | |Fair | |Good |

 | Too acid |0.74 | Low strength |0.78 | |

 | Low content of |0.88 | | | |

 | organic matter | | | | |

 | | | | | |

468B: | | | | | |

 Dunkerton-----------|Fair | |Poor | |Fair |

 | Low content of |0.12 | Depth to |0.00 | Depth to |0.50

 | organic matter | | saturated zone | | saturated zone |

 | Too acid |0.97 | | | |

 | Water erosion |0.99 | | | |

 | | | | | |

468C: | | | | | |

 Dunkerton-----------|Fair | |Poor | |Fair |

 | Low content of |0.12 | Depth to |0.00 | Depth to |0.50

 | organic matter | | saturated zone | | saturated zone |

 | Too acid |0.97 | | | |

 | Water erosion |0.99 | | | |

 | | | | | |
328 Soil Survey of

Table 15b.--Construction Materials

___________________________________________________________________________________________________

 | | |

 Map symbol | Potential as source | Potential as source | Potential as source

 and soil name | of reclamation material | of roadfill | of topsoil

 | | | _____________________________________________________________________________

 | Rating class and |Value| Rating class and |Value| Rating class and |Value

 | limiting features | | limiting features | | limiting features | ___________________________________________________________________________________________________

 | | | | | |

471: | | | | | |

 Oran----------------|Fair | |Poor | |Fair |

 | Low content of |0.12 | Depth to |0.00 | Depth to |0.50

 | organic matter | | saturated zone | | saturated zone |

 | Too acid |0.84 | Low strength |0.78 | Rock fragments |0.97

 | Water erosion |0.99 | | | |

 | | | | | |

485: | | | | | |

 Spillville, | | | | | |

 occasionally | | | | | |

 flooded------------|Good | |Poor | |Fair |

 | | | Depth to |0.00 | Depth to |0.50

 | | | saturated zone | | saturated zone |

 | | | Low strength |0.00 | |

 | | | | | |

585: | | | | | |

 Spillville, | | | | | |

 occasionally | | | | | |

 flooded------------|Good | |Poor | |Fair |

 | | | Depth to |0.00 | Depth to |0.50

 | | | saturated zone | | saturated zone |

 | | | Low strength |0.00 | |

 | | | | | |

 Coland, occasionally| | | | | |

 flooded------------|Fair | |Poor | |Poor |

 | Too clayey |0.98 | Depth to |0.00 | Depth to |0.00

 | | | saturated zone | | saturated zone |

 | | | Low strength |0.00 | Too clayey |0.00

 | | | | | |

626: | | | | | |

 Hayfield, 24 to 40 | | | | | |

 inches to sand and | | | | | |

 gravel-------------|Fair | |Poor | |Fair |

 | Low content of |0.12 | Depth to |0.00 | Depth to |0.50

 | organic matter | | saturated zone | | saturated zone |

 | Too acid |0.74 | | | |

 | | | | | |

761: | | | | | |

 Franklin------------|Fair | |Poor | |Poor |

 | Low content of |0.12 | Depth to |0.00 | Too clayey |0.00

 | organic matter | | saturated zone | | Depth to |0.50

 | Too acid |0.74 | Low strength |0.78 | saturated zone |

 | Too clayey |0.92 | | | |

 | Water erosion |0.99 | | | |

 | | | | | |

771B: | | | | | |

 Waubeek-------------|Fair | |Good | |Good |

 | Low content of |0.12 | | | |

 | organic matter | | | | |

 | Too acid |0.74 | | | |

 | Water erosion |0.99 | | | |

 | | | | | |

775B: | | | | | |

 Billett-------------|Fair | |Good | |Poor |

 | Low content of |0.12 | | | Hard to reclaim |0.00

 | organic matter | | | | |

 | Too acid |0.84 | | | |

 | | | | | |
Black Hawk County, Iowa 329

Table 15b.--Construction Materials

___________________________________________________________________________________________________

 | | |

 Map symbol | Potential as source | Potential as source | Potential as source

 and soil name | of reclamation material | of roadfill | of topsoil

 | | | _____________________________________________________________________________

 | Rating class and |Value| Rating class and |Value| Rating class and |Value

 | limiting features | | limiting features | | limiting features | ___________________________________________________________________________________________________

 | | | | | |

776C: | | | | | |

 Lilah---------------|Poor | |Good | |Poor |

 | Too sandy |0.00 | | | Too sandy |0.00

 | Droughty |0.00 | | | Rock fragments |0.00

 | Low content of |0.12 | | | Too acid |0.98

 | organic matter | | | | |

 | Too acid |0.54 | | | |

 | | | | | |

777: | | | | | |

 Wapsie--------------|Fair | |Good | |Good |

 | Low content of |0.12 | | | Rock fragments |0.97

 | organic matter | | | | Hard to reclaim |0.98

 | Too acid |0.84 | | | |

 | | | | | |

781B: | | | | | |

 Lourdes-------------|Fair | |Poor | |Poor |

 | Low content of |0.12 | Low strength |0.00 | Too clayey |0.00

 | organic matter | | Shrink-swell |0.93 | |

 | Too acid |0.32 | | | |

 | Too clayey |0.98 | | | |

 | Water erosion |0.99 | | | |

 | | | | | |

781C2: | | | | | |

 Lourdes, moderately | | | | | |

 eroded-------------|Fair | |Poor | |Poor |

 | Low content of |0.12 | Low strength |0.00 | Too clayey |0.00

 | organic matter | | Shrink-swell |0.91 | |

 | Too acid |0.88 | | | |

 | Too clayey |0.98 | | | |

 | Water erosion |0.99 | | | |

 | | | | | |

782B: | | | | | |

 Donnan--------------|Poor | |Poor | |Poor |

 | Too clayey |0.00 | Depth to |0.00 | Too clayey |0.00

 | Low content of |0.12 | saturated zone | | Depth to |0.50

 | organic matter | | Low strength |0.00 | saturated zone |

 | Too acid |0.54 | Shrink-swell |0.41 | |

 | | | | | |

798: | | | | | |

 Protivin------------|Fair | |Poor | |Poor |

 | Low content of |0.12 | Depth to |0.00 | Too clayey |0.00

 | organic matter | | saturated zone | | Depth to |0.50

 | Too acid |0.74 | Low strength |0.00 | saturated zone |

 | Too clayey |0.98 | Shrink-swell |0.97 | |

 | Water erosion |0.99 | | | |

 | | | | | |

809B: | | | | | |

 Bertram-------------|Fair | |Poor | |Fair |

 | Droughty |0.15 | Depth to bedrock |0.00 | Depth to bedrock |0.54

 | Depth to bedrock |0.54 | | | |

 | Too acid |0.74 | | | |

 | Low content of |0.88 | | | |

 | organic matter | | | | |

 | | | | | |

877B: | | | | | |

 Dinsmore------------|Fair | |Fair | |Poor |

 | Too acid |0.74 | Low strength |0.78 | Too clayey |0.00

 | Too clayey |0.98 | Shrink-swell |0.96 | |

 | Water erosion |0.99 | | | |

 | | | | | |
330 Soil Survey of

Table 15b.--Construction Materials

___________________________________________________________________________________________________

 | | |

 Map symbol | Potential as source | Potential as source | Potential as source

 and soil name | of reclamation material | of roadfill | of topsoil

 | | | _____________________________________________________________________________

 | Rating class and |Value| Rating class and |Value| Rating class and |Value

 | limiting features | | limiting features | | limiting features | ___________________________________________________________________________________________________

 | | | | | |

884: | | | | | |

 Klingmore-----------|Fair | |Poor | |Poor |

 | Too acid |0.84 | Depth to |0.00 | Too clayey |0.00

 | Low content of |0.88 | saturated zone | | Depth to |0.50

 | organic matter | | Low strength |0.00 | saturated zone |

 | Too clayey |0.98 | Shrink-swell |0.92 | |

 | Water erosion |0.99 | | | |

 | | | | | |

911B: | | | | | |

 Colo----------------|Fair | |Poor | |Poor |

 | Too clayey |0.98 | Depth to |0.00 | Depth to |0.00

 | | | saturated zone | | saturated zone |

 | | | Low strength |0.00 | Too clayey |0.00

 | | | Shrink-swell |0.90 | |

 | | | | | |

 Ely-----------------|Fair | |Poor | |Fair |

 | Water erosion |0.90 | Depth to |0.00 | Depth to |0.50

 | | | saturated zone | | saturated zone |

 | | | Low strength |0.00 | |

 | | | Shrink-swell |0.99 | |

 | | | | | |

933: | | | | | |

 Sawmill, | | | | | |

 occasionally | | | | | |

 flooded------------|Fair | |Poor | |Poor |

 | Too clayey |0.98 | Depth to |0.00 | Depth to |0.00

 | | | saturated zone | | saturated zone |

 | | | Low strength |0.00 | Too clayey |0.00

 | | | Shrink-swell |0.90 | |

 | | | | | |

982: | | | | | |

 Maxmore-------------|Fair | |Poor | |Poor |

 | Too clayey |0.92 | Depth to |0.00 | Depth to |0.00

 | | | saturated zone | | saturated zone |

 | | | Low strength |0.78 | Too clayey |0.00

 | | | Shrink-swell |0.90 | |

 | | | | | |

1152: | | | | | |

 Marshan, 24 to 40 | | | | | |

 inches to sand and | | | | | |

 gravel-------------|Fair | |Poor | |Poor |

 | Low content of |0.12 | Depth to |0.00 | Depth to |0.00

 | organic matter | | saturated zone | | saturated zone |

 | | | | | Hard to reclaim |0.92

 | | | | | |

1226: | | | | | |

 Lawler, 24 to 40 | | | | | |

 inches to sand and | | | | | |

 gravel-------------|Fair | |Poor | |Fair |

 | Low content of |0.12 | Depth to |0.00 | Depth to |0.50

 | organic matter | | saturated zone | | saturated zone |

 | Too acid |0.84 | | | Hard to reclaim |0.82

 | | | | | |

1285G: | | | | | |

 Burkhardt-----------|Poor | |Poor | |Poor |

 | Too sandy |0.00 | Slope |0.00 | Slope |0.00

 | Low content of |0.12 | | | Too sandy |0.00

 | organic matter | | | | Rock fragments |0.00

 | Droughty |0.28 | | | Hard to reclaim |0.68

 | Too acid |0.74 | | | |

 | | | | | |
Black Hawk County, Iowa 331

Table 15b.--Construction Materials

___________________________________________________________________________________________________

 | | |

 Map symbol | Potential as source | Potential as source | Potential as source

 and soil name | of reclamation material | of roadfill | of topsoil

 | | | _____________________________________________________________________________

 | Rating class and |Value| Rating class and |Value| Rating class and |Value

 | limiting features | | limiting features | | limiting features | ___________________________________________________________________________________________________

 | | | | | |

1285G: | | | | | |

 Bassett-------------|Fair | |Poor | |Poor |

 | Low content of |0.12 | Slope |0.00 | Slope |0.00

 | organic matter | | Depth to |0.53 | |

 | Too acid |0.88 | saturated zone | | |

 | | | Low strength |0.78 | |

 | | | | | |

 Chelsea-------------|Poor | |Poor | |Poor |

 | Too sandy |0.00 | Slope |0.00 | Slope |0.00

 | Wind erosion |0.00 | | | Too sandy |0.00

 | Low content of |0.12 | | | |

 | organic matter | | | | |

 | Too acid |0.84 | | | |

 | Droughty |0.87 | | | |

 | | | | | |

1585: | | | | | |

 Spillville, | | | | | |

 frequently flooded |Good | |Poor | |Fair |

 | | | Depth to |0.00 | Depth to |0.50

 | | | saturated zone | | saturated zone |

 | | | Low strength |0.00 | |

 | | | | | |

 Coland, frequently | | | | | |

 flooded------------|Fair | |Poor | |Poor |

 | Too clayey |0.98 | Depth to |0.00 | Depth to |0.00

 | | | saturated zone | | saturated zone |

 | | | Low strength |0.00 | Too clayey |0.00

 | | | | | |

 Aquolls, ponded-----|Not rated | |Not rated | |Not rated |

 | | | | | |

1586: | | | | | |

 Sigglekov, | | | | | |

 frequently flooded |Poor | |Poor | |Poor |

 | Too sandy |0.00 | Depth to |0.00 | Too sandy |0.00

 | Droughty |0.04 | saturated zone | | Depth to |0.50

 | Low content of |0.12 | | | saturated zone |

 | organic matter | | | | |

 | Too acid |0.95 | | | |

 | | | | | |

 Fluvaquents, | | | | | |

 frequently flooded |Not rated | |Not rated | |Not rated |

 | | | | | |

 Aquents, ponded-----|Not rated | |Not rated | |Not rated |

 | | | | | |

4000: | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4007: | | | | | |

 Wiota---------------|Fair | |Fair | |Good |

 | Low content of |0.88 | Shrink-swell |0.94 | |

 | organic matter | | | | |

 | Water erosion |0.90 | | | |

 | Too acid |0.92 | | | |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |
332 Soil Survey of

Table 15b.--Construction Materials

___________________________________________________________________________________________________

 | | |

 Map symbol | Potential as source | Potential as source | Potential as source

 and soil name | of reclamation material | of roadfill | of topsoil

 | | | _____________________________________________________________________________

 | Rating class and |Value| Rating class and |Value| Rating class and |Value

 | limiting features | | limiting features | | limiting features | ___________________________________________________________________________________________________

 | | | | | |

4041: | | | | | |

 Sparta--------------|Poor | |Good | |Poor |

 | Too sandy |0.00 | | | Too sandy |0.00

 | Wind erosion |0.00 | | | |

 | Low content of |0.12 | | | |

 | organic matter | | | | |

 | Droughty |0.68 | | | |

 | Too acid |0.68 | | | |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4041B: | | | | | |

 Sparta--------------|Poor | |Good | |Poor |

 | Too sandy |0.00 | | | Too sandy |0.00

 | Wind erosion |0.00 | | | |

 | Low content of |0.12 | | | |

 | organic matter | | | | |

 | Droughty |0.68 | | | |

 | Too acid |0.68 | | | |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4041C: | | | | | |

 Sparta--------------|Poor | |Good | |Poor |

 | Too sandy |0.00 | | | Too sandy |0.00

 | Wind erosion |0.00 | | | |

 | Low content of |0.12 | | | |

 | organic matter | | | | |

 | Droughty |0.64 | | | |

 | Too acid |0.68 | | | |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4041D: | | | | | |

 Sparta--------------|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 | | | | |

 | Droughty |0.62 | | | |

 | Too acid |0.68 | | | |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4063B: | | | | | |

 Chelsea-------------|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 | | | |

 | Droughty |0.94 | | | |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |
Black Hawk County, Iowa 333

Table 15b.--Construction Materials

___________________________________________________________________________________________________

 | | |

 Map symbol | Potential as source | Potential as source | Potential as source

 and soil name | of reclamation material | of roadfill | of topsoil

 | | | _____________________________________________________________________________

 | Rating class and |Value| Rating class and |Value| Rating class and |Value

 | limiting features | | limiting features | | limiting features | ___________________________________________________________________________________________________

 | | | | | |

4063C: | | | | | |

 Chelsea-------------|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 | | | |

 | Droughty |0.94 | | | |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4063D: | | | | | |

 Chelsea-------------|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 | | | | |

 | Too acid |0.84 | | | |

 | Droughty |0.94 | | | |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4083B: | | | | | |

 Kenyon--------------|Fair | |Fair | |Good |

 | Low content of |0.50 | Low strength |0.78 | |

 | organic matter | | | | |

 | Too acid |0.97 | | | |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4083C: | | | | | |

 Kenyon--------------|Fair | |Fair | |Good |

 | Low content of |0.50 | Low strength |0.78 | |

 | organic matter | | | | |

 | Too acid |0.97 | | | |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4083D: | | | | | |

 Kenyon--------------|Fair | |Fair | |Fair |

 | Low content of |0.50 | Low strength |0.78 | Slope |0.37

 | organic matter | | | | |

 | Too acid |0.97 | | | |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4084: | | | | | |

 Clyde---------------|Fair | |Poor | |Poor |

 | Water erosion |0.99 | Depth to |0.00 | Depth to |0.00

 | | | saturated zone | | saturated zone |

 | | | Low strength |0.22 | |

 | | | Shrink-swell |0.99 | |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4088: | | | | | |

 Nevin---------------|Fair | |Poor | |Fair |

 | Too acid |0.99 | Depth to |0.00 | Depth to |0.50

 | | | saturated zone | | saturated zone |

 | | | Shrink-swell |0.92 | |

 | | | | | |
334 Soil Survey of

Table 15b.--Construction Materials

___________________________________________________________________________________________________

 | | |

 Map symbol | Potential as source | Potential as source | Potential as source

 and soil name | of reclamation material | of roadfill | of topsoil

 | | | _____________________________________________________________________________

 | Rating class and |Value| Rating class and |Value| Rating class and |Value

 | limiting features | | limiting features | | limiting features | ___________________________________________________________________________________________________

 | | | | | |

4088: | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4133: | | | | | |

 Colo, occasionally | | | | | |

 flooded------------|Fair | |Poor | |Poor |

 | Too clayey |0.98 | Depth to |0.00 | Depth to |0.00

 | | | saturated zone | | saturated zone |

 | | | Low strength |0.00 | Too clayey |0.00

 | | | Shrink-swell |0.90 | |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4135: | | | | | |

 Coland, occasionally| | | | | |

 flooded------------|Fair | |Poor | |Poor |

 | Too clayey |0.98 | Depth to |0.00 | Depth to |0.00

 | | | saturated zone | | saturated zone |

 | | | Low strength |0.00 | Too clayey |0.00

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4152: | | | | | |

 Marshan, 24 to 40 | | | | | |

 inches to sand and | | | | | |

 gravel-------------|Fair | |Poor | |Poor |

 | Low content of |0.12 | Depth to |0.00 | Depth to |0.00

 | organic matter | | saturated zone | | saturated zone |

 | | | | | Hard to reclaim |0.92

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4159: | | | | | |

 Finchford-----------|Poor | |Good | |Poor |

 | Too sandy |0.00 | | | Too sandy |0.00

 | Wind erosion |0.00 | | | Hard to reclaim |0.68

 | Low content of |0.12 | | | |

 | organic matter | | | | |

 | Droughty |0.29 | | | |

 | Too acid |0.74 | | | |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4159C: | | | | | |

 Finchford-----------|Poor | |Good | |Poor |

 | Too sandy |0.00 | | | Too sandy |0.00

 | Wind erosion |0.00 | | | Rock fragments |0.00

 | Low content of |0.12 | | | Hard to reclaim |0.68

 | organic matter | | | | |

 | Droughty |0.17 | | | |

 | Too acid |0.74 | | | |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4171B: | | | | | |

 Bassett-------------|Fair | |Fair | |Good |

 | Low content of |0.12 | Depth to |0.53 | |

 | organic matter | | saturated zone | | |

 | Too acid |0.88 | Low strength |0.78 | |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |
Black Hawk County, Iowa 335

Table 15b.--Construction Materials

___________________________________________________________________________________________________

 | | |

 Map symbol | Potential as source | Potential as source | Potential as source

 and soil name | of reclamation material | of roadfill | of topsoil

 | | | _____________________________________________________________________________

 | Rating class and |Value| Rating class and |Value| Rating class and |Value

 | limiting features | | limiting features | | limiting features | ___________________________________________________________________________________________________

 | | | | | |

4171D: | | | | | |

 Bassett-------------|Fair | |Fair | |Fair |

 | Low content of |0.12 | Depth to |0.53 | Slope |0.37

 | organic matter | | saturated zone | | |

 | Too acid |0.88 | Low strength |0.78 | |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4175: | | | | | |

 Dickinson-----------|Fair | |Good | |Good |

 | Low content of |0.12 | | | |

 | organic matter | | | | |

 | Too acid |0.84 | | | |

 | Droughty |0.95 | | | |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4175B: | | | | | |

 Dickinson-----------|Fair | |Good | |Good |

 | Low content of |0.12 | | | |

 | organic matter | | | | |

 | Too acid |0.84 | | | |

 | Droughty |0.95 | | | |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4177: | | | | | |

 Saude---------------|Fair | |Good | |Fair |

 | Low content of |0.12 | | | Hard to reclaim |0.82

 | organic matter | | | | |

 | Too acid |0.74 | | | |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4177B: | | | | | |

 Saude---------------|Fair | |Good | |Fair |

 | Low content of |0.12 | | | Hard to reclaim |0.82

 | organic matter | | | | |

 | Too acid |0.74 | | | |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4178: | | | | | |

 Waukee--------------|Fair | |Good | |Good |

 | Low content of |0.12 | | | Hard to reclaim |0.98

 | organic matter | | | | |

 | Too acid |0.74 | | | |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4184: | | | | | |

 Klinger-------------|Fair | |Poor | |Fair |

 | Low content of |0.12 | Depth to |0.00 | Depth to |0.50

 | organic matter | | saturated zone | | saturated zone |

 | Too acid |0.84 | Low strength |0.78 | |

 | Water erosion |0.90 | | | |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |
336 Soil Survey of

Table 15b.--Construction Materials

___________________________________________________________________________________________________

 | | |

 Map symbol | Potential as source | Potential as source | Potential as source

 and soil name | of reclamation material | of roadfill | of topsoil

 | | | _____________________________________________________________________________

 | Rating class and |Value| Rating class and |Value| Rating class and |Value

 | limiting features | | limiting features | | limiting features | ___________________________________________________________________________________________________

 | | | | | |

4198B: | | | | | |

 Floyd---------------|Good | |Poor | |Fair |

 | | | Depth to |0.00 | Depth to |0.50

 | | | saturated zone | | saturated zone |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4226: | | | | | |

 Lawler, 24 to 40 | | | | | |

 inches to sand and | | | | | |

 gravel-------------|Fair | |Poor | |Fair |

 | Low content of |0.12 | Depth to |0.00 | Depth to |0.50

 | organic matter | | saturated zone | | saturated zone |

 | Too acid |0.84 | | | Hard to reclaim |0.82

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4284: | | | | | |

 Flagler-------------|Fair | |Good | |Good |

 | Low content of |0.12 | | | |

 | organic matter | | | | |

 | Too acid |0.84 | | | |

 | Droughty |0.87 | | | |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4284B: | | | | | |

 Flagler-------------|Fair | |Good | |Good |

 | Low content of |0.12 | | | |

 | organic matter | | | | |

 | Too acid |0.84 | | | |

 | Droughty |0.87 | | | |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4377B: | | | | | |

 Dinsdale------------|Fair | |Fair | |Poor |

 | Low content of |0.12 | Low strength |0.78 | Too clayey |0.00

 | organic matter | | Shrink-swell |0.99 | |

 | Water erosion |0.90 | | | |

 | Too clayey |0.92 | | | |

 | Too acid |0.97 | | | |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4377C: | | | | | |

 Dinsdale------------|Fair | |Fair | |Poor |

 | Low content of |0.12 | Low strength |0.78 | Too clayey |0.00

 | organic matter | | Shrink-swell |0.99 | |

 | Water erosion |0.90 | | | |

 | Too clayey |0.92 | | | |

 | Too acid |0.97 | | | |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4382: | | | | | |

 Maxfield------------|Fair | |Poor | |Poor |

 | Low content of |0.12 | Depth to |0.00 | Depth to |0.00

 | organic matter | | saturated zone | | saturated zone |

 | Too clayey |0.98 | Low strength |0.78 | Too clayey |0.00

 | | | | | |
Black Hawk County, Iowa 337

Table 15b.--Construction Materials

___________________________________________________________________________________________________

 | | |

 Map symbol | Potential as source | Potential as source | Potential as source

 and soil name | of reclamation material | of roadfill | of topsoil

 | | | _____________________________________________________________________________

 | Rating class and |Value| Rating class and |Value| Rating class and |Value

 | limiting features | | limiting features | | limiting features | ___________________________________________________________________________________________________

 | | | | | |

4382: | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4391B: | | | | | |

 Clyde---------------|Fair | |Poor | |Poor |

 | Water erosion |0.99 | Depth to |0.00 | Depth to |0.00

 | | | saturated zone | | saturated zone |

 | | | Low strength |0.22 | |

 | | | Shrink-swell |0.99 | |

 | | | | | |

 Floyd---------------|Good | |Poor | |Fair |

 | | | Depth to |0.00 | Depth to |0.50

 | | | saturated zone | | saturated zone |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4398: | | | | | |

 Tripoli-------------|Fair | |Poor | |Poor |

 | Low content of |0.12 | Depth to |0.00 | Depth to |0.00

 | organic matter | | saturated zone | | saturated zone |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4399: | | | | | |

 Readlyn-------------|Fair | |Poor | |Fair |

 | Low content of |0.50 | Depth to |0.00 | Depth to |0.50

 | organic matter | | saturated zone | | saturated zone |

 | Too acid |0.84 | | | |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4408B: | | | | | |

 Olin----------------|Fair | |Good | |Good |

 | Low content of |0.12 | | | |

 | organic matter | | | | |

 | Too acid |0.74 | | | |

 | Water erosion |0.99 | | | |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4408C: | | | | | |

 Olin----------------|Fair | |Good | |Good |

 | Low content of |0.12 | | | |

 | organic matter | | | | |

 | Too acid |0.74 | | | |

 | Water erosion |0.99 | | | |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4426B: | | | | | |

 Aredale-------------|Fair | |Good | |Good |

 | Low content of |0.12 | | | |

 | organic matter | | | | |

 | Too acid |0.74 | | | |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |
338 Soil Survey of

Table 15b.--Construction Materials

___________________________________________________________________________________________________

 | | |

 Map symbol | Potential as source | Potential as source | Potential as source

 and soil name | of reclamation material | of roadfill | of topsoil

 | | | _____________________________________________________________________________

 | Rating class and |Value| Rating class and |Value| Rating class and |Value

 | limiting features | | limiting features | | limiting features | ___________________________________________________________________________________________________

 | | | | | |

4426C: | | | | | |

 Aredale-------------|Fair | |Good | |Good |

 | Low content of |0.12 | | | |

 | organic matter | | | | |

 | Too acid |0.74 | | | |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4585: | | | | | |

 Spillville, | | | | | |

 occasionally | | | | | |

 flooded------------|Good | |Poor | |Fair |

 | | | Depth to |0.00 | Depth to |0.50

 | | | saturated zone | | saturated zone |

 | | | Low strength |0.00 | |

 | | | | | |

 Coland, occasionally| | | | | |

 flooded------------|Fair | |Poor | |Poor |

 | Too clayey |0.98 | Depth to |0.00 | Depth to |0.00

 | | | saturated zone | | saturated zone |

 | | | Low strength |0.00 | Too clayey |0.00

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4761: | | | | | |

 Franklin------------|Fair | |Poor | |Poor |

 | Low content of |0.12 | Depth to |0.00 | Too clayey |0.00

 | organic matter | | saturated zone | | Depth to |0.50

 | Too acid |0.54 | Low strength |0.78 | saturated zone |

 | Too clayey |0.92 | | | Too acid |0.98

 | Water erosion |0.99 | | | |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4771B: | | | | | |

 Waubeek-------------|Fair | |Good | |Good |

 | Low content of |0.12 | | | |

 | organic matter | | | | |

 | Too acid |0.74 | | | |

 | Water erosion |0.99 | | | |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4771D: | | | | | |

 Waubeek-------------|Fair | |Good | |Good |

 | Low content of |0.12 | | | Slope |0.96

 | organic matter | | | | |

 | Too acid |0.74 | | | |

 | Water erosion |0.99 | | | |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4798: | | | | | |

 Protivin------------|Fair | |Poor | |Poor |

 | Low content of |0.12 | Depth to |0.00 | Too clayey |0.00

 | organic matter | | saturated zone | | Depth to |0.50

 | Too acid |0.74 | Low strength |0.00 | saturated zone |

 | Too clayey |0.98 | Shrink-swell |0.97 | |

 | Water erosion |0.99 | | | |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |
Black Hawk County, Iowa 339

Table 15b.--Construction Materials

___________________________________________________________________________________________________

 | | |

 Map symbol | Potential as source | Potential as source | Potential as source

 and soil name | of reclamation material | of roadfill | of topsoil

 | | | _____________________________________________________________________________

 | Rating class and |Value| Rating class and |Value| Rating class and |Value

 | limiting features | | limiting features | | limiting features | ___________________________________________________________________________________________________

 | | | | | |

4911B: | | | | | |

 Colo----------------|Fair | |Poor | |Poor |

 | Too clayey |0.98 | Depth to |0.00 | Depth to |0.00

 | | | saturated zone | | saturated zone |

 | | | Low strength |0.00 | Too clayey |0.00

 | | | Shrink-swell |0.90 | |

 | | | | | |

 Ely-----------------|Fair | |Poor | |Fair |

 | Water erosion |0.90 | Depth to |0.00 | Depth to |0.50

 | | | saturated zone | | saturated zone |

 | | | Low strength |0.00 | |

 | | | Shrink-swell |0.99 | |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4933: | | | | | |

 Sawmill, | | | | | |

 occasionally | | | | | |

 flooded------------|Fair | |Poor | |Poor |

 | Too clayey |0.98 | Depth to |0.00 | Depth to |0.00

 | | | saturated zone | | saturated zone |

 | | | Low strength |0.00 | Too clayey |0.00

 | | | Shrink-swell |0.90 | |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4946: | | | | | |

 Orthents, loamy-----|Not rated | |Not rated | |Not rated |

 | | | | | |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

5010: | | | | | |

 Pits, sand and | | | | | |

 gravel-------------|Not rated | |Not rated | |Not rated |

 | | | | | |

5030: | | | | | |

 Pits, limestone | | | | | |

 quarries-----------|Not rated | |Not rated | |Not rated |

 | | | | | |

5040: | | | | | |

 Orthents, loamy-----|Not rated | |Not rated | |Not rated |

 | | | | | |

5053: | | | | | |

 Psammaquents, | | | | | |

 frequently flooded |Not rated | |Not rated | |Not rated |

 | | | | | |

5080: | | | | | |

 Orthents, sanitary | | | | | |

 landfill-----------|Not rated | |Not rated | |Not rated |

 | | | | | |

AW: | | | | | |

 Animal waste--------|Not rated | |Not rated | |Not rated |

 | | | | | |

SL: | | | | | |

 Sewage lagoon-------|Not rated | |Not rated | |Not rated |

 | | | | | |
340 Soil Survey of

Table 15b.--Construction Materials

___________________________________________________________________________________________________

 | | |

 Map symbol | Potential as source | Potential as source | Potential as source

 and soil name | of reclamation material | of roadfill | of topsoil

 | | | _____________________________________________________________________________

 | Rating class and |Value| Rating class and |Value| Rating class and |Value

 | limiting features | | limiting features | | limiting features | ___________________________________________________________________________________________________

 | | | | | |

W: | | | | | |

 Water---------------|Not rated | |Not rated | |Not rated |

 | | | | | | ___________________________________________________________________________________________________
Black Hawk County, Iowa 341

Table 16.--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. "Not rated" indicates that data are not

 available or that no rating is applicable. See text for further explanation of ratings in

 this table)

___________________________________________________________________________________________________

 | | |

 Map symbol | Pond reservoir areas | Embankments, dikes, and | Aquifer-fed

 and soil name | | levees | excavated ponds

 | | | _____________________________________________________________________________

 | Rating class and |Value| Rating class and |Value| Rating class and |Value

 | limiting features | | limiting features | | limiting features | ___________________________________________________________________________________________________

 | | | | | |

7: | | | | | |

 Wiota---------------|Very limited | |Somewhat limited | |Very limited |

 | Seepage |1.00 | Piping |0.81 | No ground water |1.00

 | | | Seepage |0.10 | |

 | | | | | |

41: | | | | | |

 Sparta--------------|Very limited | |Somewhat limited | |Very limited |

 | Seepage |1.00 | Seepage |0.35 | No ground water |1.00

 | | | | | |

41B: | | | | | |

 Sparta--------------|Very limited | |Somewhat limited | |Very limited |

 | Seepage |1.00 | Seepage |0.35 | No ground water |1.00

 | | | | | |

41C: | | | | | |

 Sparta--------------|Very limited | |Somewhat limited | |Very limited |

 | Seepage |1.00 | Seepage |0.35 | No ground water |1.00

 | | | | | |

41D: | | | | | |

 Sparta--------------|Very limited | |Somewhat limited | |Very limited |

 | Seepage |1.00 | Seepage |0.35 | No ground water |1.00

 | Slope |0.01 | | | |

 | | | | | |

63B: | | | | | |

 Chelsea-------------|Very limited | |Somewhat limited | |Very limited |

 | Seepage |1.00 | Seepage |0.12 | No ground water |1.00

 | | | | | |

63C: | | | | | |

 Chelsea-------------|Very limited | |Somewhat limited | |Very limited |

 | Seepage |1.00 | Seepage |0.12 | No ground water |1.00

 | | | | | |

63D: | | | | | |

 Chelsea-------------|Very limited | |Somewhat limited | |Very limited |

 | Seepage |1.00 | Seepage |0.12 | No ground water |1.00

 | Slope |0.01 | | | |

 | | | | | |

83B: | | | | | |

 Kenyon--------------|Somewhat limited | |Somewhat limited | |Somewhat limited |

 | Seepage |0.70 | Piping |0.50 | Depth to water |0.81

 | | | | | Slow refill |0.30

 | | | | | Cutbanks cave |0.10

 | | | | | |

83C: | | | | | |

 Kenyon--------------|Somewhat limited | |Somewhat limited | |Somewhat limited |

 | Seepage |0.70 | Piping |0.50 | Depth to water |0.81

 | | | | | Slow refill |0.30

 | | | | | Cutbanks cave |0.10

 | | | | | |

83C2: | | | | | |

 Kenyon, moderately | | | | | |

 eroded-------------|Somewhat limited | |Somewhat limited | |Somewhat limited |

 | Seepage |0.70 | Piping |0.50 | Depth to water |0.81

 | | | | | Slow refill |0.30

 | | | | | Cutbanks cave |0.10

 | | | | | |
342 Soil Survey of

Table 16.--Water Management--Continued

___________________________________________________________________________________________________

 | | |

 Map symbol | Pond reservoir areas | Embankments, dikes, and | Aquifer-fed

 and soil name | | levees | excavated ponds

 | | | _____________________________________________________________________________

 | Rating class and |Value| Rating class and |Value| Rating class and |Value

 | limiting features | | limiting features | | limiting features | ___________________________________________________________________________________________________

 | | | | | |

83D2: | | | | | |

 Kenyon, moderately | | | | | |

 eroded-------------|Somewhat limited | |Somewhat limited | |Somewhat limited |

 | Seepage |0.70 | Piping |0.50 | Depth to water |0.81

 | Slope |0.01 | | | Slow refill |0.30

 | | | | | Cutbanks cave |0.10

 | | | | | |

84: | | | | | |

 Clyde---------------|Somewhat limited | |Very limited | |Somewhat limited |

 | Seepage |0.70 | Depth to |1.00 | Slow refill |0.30

 | | | saturated zone | | Cutbanks cave |0.10

 | | | Piping |0.30 | |

 | | | | | |

88: | | | | | |

 Nevin---------------|Somewhat limited | |Very limited | |Very limited |

 | Seepage |0.70 | Depth to |1.00 | Cutbanks cave |1.00

 | | | saturated zone | | Slow refill |0.30

 | | | Piping |0.49 | |

 | | | Seepage |0.42 | |

 | | | | | |

133: | | | | | |

 Colo, occasionally | | | | | |

 flooded------------|Somewhat limited | |Very limited | |Somewhat limited |

 | Seepage |0.70 | Depth to |1.00 | Slow refill |0.30

 | | | saturated zone | | Cutbanks cave |0.10

 | | | | | |

135: | | | | | |

 Coland, occasionally| | | | | |

 flooded------------|Very limited | |Very limited | |Somewhat limited |

 | Seepage |1.00 | Depth to |1.00 | Cutbanks cave |0.10

 | | | saturated zone | | |

 | | | Piping |0.31 | |

 | | | Seepage |0.03 | |

 | | | | | |

159: | | | | | |

 Finchford-----------|Very limited | |Somewhat limited | |Very limited |

 | Seepage |1.00 | Seepage |0.46 | No ground water |1.00

 | | | | | |

159C: | | | | | |

 Finchford-----------|Very limited | |Somewhat limited | |Very limited |

 | Seepage |1.00 | Seepage |0.46 | No ground water |1.00

 | | | | | |

171B: | | | | | |

 Bassett-------------|Somewhat limited | |Very limited | |Somewhat limited |

 | Seepage |0.70 | Depth to |1.00 | Slow refill |0.30

 | | | saturated zone | | Cutbanks cave |0.10

 | | | Piping |0.61 | Depth to water |0.01

 | | | | | |

175: | | | | | |

 Dickinson-----------|Very limited | |Somewhat limited | |Very limited |

 | Seepage |1.00 | Seepage |0.36 | No ground water |1.00

 | | | | | |

175B: | | | | | |

 Dickinson-----------|Very limited | |Somewhat limited | |Very limited |

 | Seepage |1.00 | Seepage |0.36 | No ground water |1.00

 | | | | | |

177: | | | | | |

 Saude---------------|Very limited | |Somewhat limited | |Very limited |

 | Seepage |1.00 | Seepage |0.60 | No ground water |1.00

 | | | | | |
Black Hawk County, Iowa 343

Table 16.--Water Management--Continued

___________________________________________________________________________________________________

 | | |

 Map symbol | Pond reservoir areas | Embankments, dikes, and | Aquifer-fed

 and soil name | | levees | excavated ponds

 | | | _____________________________________________________________________________

 | Rating class and |Value| Rating class and |Value| Rating class and |Value

 | limiting features | | limiting features | | limiting features | ___________________________________________________________________________________________________

 | | | | | |

177B: | | | | | |

 Saude---------------|Very limited | |Somewhat limited | |Very limited |

 | Seepage |1.00 | Seepage |0.60 | No ground water |1.00

 | | | | | |

178: | | | | | |

 Waukee--------------|Very limited | |Somewhat limited | |Very limited |

 | Seepage |1.00 | Seepage |0.67 | No ground water |1.00

 | | | | | |

178B: | | | | | |

 Waukee--------------|Very limited | |Somewhat limited | |Very limited |

 | Seepage |1.00 | Seepage |0.67 | No ground water |1.00

 | | | | | |

184: | | | | | |

 Klinger-------------|Somewhat limited | |Very limited | |Somewhat limited |

 | Seepage |0.70 | Depth to |1.00 | Slow refill |0.30

 | | | saturated zone | | Cutbanks cave |0.10

 | | | Piping |0.05 | |

 | | | | | |

198B: | | | | | |

 Floyd---------------|Very limited | |Very limited | |Somewhat limited |

 | Seepage |1.00 | Depth to |1.00 | Cutbanks cave |0.10

 | | | saturated zone | | |

 | | | Piping |0.95 | |

 | | | | | |

213B: | | | | | |

 Rockton, 30 to 40 | | | | | |

 inches to limestone|Somewhat limited | |Somewhat limited | |Very limited |

 | Seepage |0.70 | Piping |0.74 | No ground water |1.00

 | Depth to bedrock |0.69 | Thin layer |0.70 | |

 | | | | | |

221: | | | | | |

 Klossner------------|Very limited | |Very limited | |Somewhat limited |

 | Seepage |1.00 | Depth to |1.00 | Cutbanks cave |0.10

 | | | saturated zone | | |

 | | | | | |

284: | | | | | |

 Flagler-------------|Very limited | |Somewhat limited | |Very limited |

 | Seepage |1.00 | Seepage |0.08 | No ground water |1.00

 | | | | | |

284B: | | | | | |

 Flagler-------------|Very limited | |Somewhat limited | |Very limited |

 | Seepage |1.00 | Seepage |0.08 | No ground water |1.00

 | | | | | |

290: | | | | | |

 Dells---------------|Very limited | |Very limited | |Very limited |

 | Seepage |1.00 | Depth to |1.00 | Cutbanks cave |1.00

 | | | saturated zone | | |

 | | | Piping |1.00 | |

 | | | Seepage |0.67 | |

 | | | | | |

354: | | | | | |

 Aquolls, ponded-----|Not limited | |Very limited | |Somewhat limited |

 | | | Ponding |1.00 | Cutbanks cave |0.10

 | | | Depth to |1.00 | |

 | | | saturated zone | | |

 | | | | | |

377B: | | | | | |

 Dinsdale------------|Somewhat limited | |Somewhat limited | |Somewhat limited |

 | Seepage |0.70 | Piping |0.22 | Depth to water |0.81

 | | | | | Slow refill |0.30

 | | | | | Cutbanks cave |0.10

 | | | | | |
344 Soil Survey of

Table 16.--Water Management--Continued

___________________________________________________________________________________________________

 | | |

 Map symbol | Pond reservoir areas | Embankments, dikes, and | Aquifer-fed

 and soil name | | levees | excavated ponds

 | | | _____________________________________________________________________________

 | Rating class and |Value| Rating class and |Value| Rating class and |Value

 | limiting features | | limiting features | | limiting features | ___________________________________________________________________________________________________

 | | | | | |

377C: | | | | | |

 Dinsdale------------|Somewhat limited | |Somewhat limited | |Somewhat limited |

 | Seepage |0.70 | Piping |0.22 | Depth to water |0.81

 | | | | | Slow refill |0.30

 | | | | | Cutbanks cave |0.10

 | | | | | |

377C2: | | | | | |

 Dinsdale, moderately| | | | | |

 eroded-------------|Somewhat limited | |Somewhat limited | |Somewhat limited |

 | Seepage |0.70 | Piping |0.28 | Depth to water |0.81

 | | | | | Slow refill |0.30

 | | | | | Cutbanks cave |0.10

 | | | | | |

382: | | | | | |

 Maxfield------------|Somewhat limited | |Very limited | |Somewhat limited |

 | Seepage |0.70 | Depth to |1.00 | Slow refill |0.30

 | | | saturated zone | | Cutbanks cave |0.10

 | | | | | |

391B: | | | | | |

 Clyde---------------|Somewhat limited | |Very limited | |Somewhat limited |

 | Seepage |0.70 | Depth to |1.00 | Slow refill |0.30

 | | | saturated zone | | Cutbanks cave |0.10

 | | | Piping |0.30 | |

 | | | | | |

 Floyd---------------|Very limited | |Very limited | |Somewhat limited |

 | Seepage |1.00 | Depth to |1.00 | Cutbanks cave |0.10

 | | | saturated zone | | |

 | | | Piping |0.95 | |

 | | | | | |

395B: | | | | | |

 Marquis-------------|Somewhat limited | |Very limited | |Somewhat limited |

 | Seepage |0.70 | Depth to |1.00 | Slow refill |0.30

 | | | saturated zone | | Cutbanks cave |0.10

 | | | Piping |0.50 | Depth to water |0.01

 | | | | | |

398: | | | | | |

 Tripoli-------------|Somewhat limited | |Very limited | |Somewhat limited |

 | Seepage |0.70 | Depth to |1.00 | Slow refill |0.30

 | | | saturated zone | | Cutbanks cave |0.10

 | | | Piping |0.21 | |

 | | | | | |

399: | | | | | |

 Readlyn-------------|Somewhat limited | |Very limited | |Somewhat limited |

 | Seepage |0.70 | Depth to |1.00 | Slow refill |0.30

 | | | saturated zone | | Cutbanks cave |0.10

 | | | Piping |0.26 | |

 | | | | | |

408B: | | | | | |

 Olin----------------|Very limited | |Somewhat limited | |Very limited |

 | Seepage |1.00 | Piping |0.91 | No ground water |1.00

 | | | | | |

408C: | | | | | |

 Olin----------------|Very limited | |Somewhat limited | |Very limited |

 | Seepage |1.00 | Piping |0.91 | No ground water |1.00

 | | | | | |

412C: | | | | | |

 Emeline-------------|Very limited | |Very limited | |Very limited |

 | Depth to bedrock |1.00 | Thin layer |1.00 | No ground water |1.00

 | Seepage |0.01 | Piping |0.18 | |

 | | | | | |
Black Hawk County, Iowa 345

Table 16.--Water Management--Continued

___________________________________________________________________________________________________

 | | |

 Map symbol | Pond reservoir areas | Embankments, dikes, and | Aquifer-fed

 and soil name | | levees | excavated ponds

 | | | _____________________________________________________________________________

 | Rating class and |Value| Rating class and |Value| Rating class and |Value

 | limiting features | | limiting features | | limiting features | ___________________________________________________________________________________________________

 | | | | | |

426B: | | | | | |

 Aredale-------------|Very limited | |Very limited | |Very limited |

 | Seepage |1.00 | Piping |0.99 | No ground water |1.00

 | | | Seepage |0.02 | |

 | | | | | |

426C: | | | | | |

 Aredale-------------|Very limited | |Very limited | |Very limited |

 | Seepage |1.00 | Piping |0.99 | No ground water |1.00

 | | | Seepage |0.02 | |

 | | | | | |

426C2: | | | | | |

 Aredale, moderately | | | | | |

 eroded-------------|Very limited | |Somewhat limited | |Very limited |

 | Seepage |1.00 | Piping |0.92 | No ground water |1.00

 | | | | | |

468B: | | | | | |

 Dunkerton-----------|Very limited | |Very limited | |Somewhat limited |

 | Seepage |1.00 | Depth to |1.00 | Cutbanks cave |0.10

 | | | saturated zone | | |

 | | | Piping |0.86 | |

 | | | | | |

468C: | | | | | |

 Dunkerton-----------|Very limited | |Very limited | |Somewhat limited |

 | Seepage |1.00 | Depth to |1.00 | Cutbanks cave |0.10

 | | | saturated zone | | |

 | | | Piping |0.86 | |

 | | | | | |

471: | | | | | |

 Oran----------------|Somewhat limited | |Very limited | |Somewhat limited |

 | Seepage |0.70 | Depth to |1.00 | Slow refill |0.30

 | | | saturated zone | | Cutbanks cave |0.10

 | | | Piping |0.71 | |

 | | | | | |

485: | | | | | |

 Spillville, | | | | | |

 occasionally | | | | | |

 flooded------------|Very limited | |Very limited | |Somewhat limited |

 | Seepage |1.00 | Depth to |1.00 | Cutbanks cave |0.10

 | | | saturated zone | | |

 | | | Piping |0.59 | |

 | | | | | |

585: | | | | | |

 Spillville, | | | | | |

 occasionally | | | | | |

 flooded------------|Very limited | |Very limited | |Somewhat limited |

 | Seepage |1.00 | Depth to |1.00 | Cutbanks cave |0.10

 | | | saturated zone | | |

 | | | Piping |0.59 | |

 | | | | | |

 Coland, occasionally| | | | | |

 flooded------------|Very limited | |Very limited | |Somewhat limited |

 | Seepage |1.00 | Depth to |1.00 | Cutbanks cave |0.10

 | | | saturated zone | | |

 | | | Piping |0.22 | |

 | | | Seepage |0.03 | |

 | | | | | |
346 Soil Survey of

Table 16.--Water Management--Continued

___________________________________________________________________________________________________

 | | |

 Map symbol | Pond reservoir areas | Embankments, dikes, and | Aquifer-fed

 and soil name | | levees | excavated ponds

 | | | _____________________________________________________________________________

 | Rating class and |Value| Rating class and |Value| Rating class and |Value

 | limiting features | | limiting features | | limiting features | ___________________________________________________________________________________________________

 | | | | | |

626: | | | | | |

 Hayfield, 24 to 40 | | | | | |

 inches to sand and | | | | | |

 gravel-------------|Very limited | |Very limited | |Very limited |

 | Seepage |1.00 | Depth to |1.00 | Cutbanks cave |1.00

 | | | saturated zone | | |

 | | | Seepage |0.54 | |

 | | | | | |

761: | | | | | |

 Franklin------------|Somewhat limited | |Very limited | |Somewhat limited |

 | Seepage |0.70 | Depth to |1.00 | Slow refill |0.30

 | | | saturated zone | | Cutbanks cave |0.10

 | | | Piping |0.30 | |

 | | | | | |

771B: | | | | | |

 Waubeek-------------|Somewhat limited | |Somewhat limited | |Somewhat limited |

 | Seepage |0.70 | Piping |0.45 | Depth to water |0.81

 | | | | | Slow refill |0.30

 | | | | | Cutbanks cave |0.10

 | | | | | |

775B: | | | | | |

 Billett-------------|Very limited | |Somewhat limited | |Very limited |

 | Seepage |1.00 | Seepage |0.08 | No ground water |1.00

 | | | | | |

776C: | | | | | |

 Lilah---------------|Very limited | |Somewhat limited | |Very limited |

 | Seepage |1.00 | Seepage |0.11 | No ground water |1.00

 | | | | | |

777: | | | | | |

 Wapsie--------------|Very limited | |Somewhat limited | |Very limited |

 | Seepage |1.00 | Seepage |0.41 | No ground water |1.00

 | | | | | |

781B: | | | | | |

 Lourdes-------------|Somewhat limited | |Somewhat limited | |Somewhat limited |

 | Seepage |0.05 | Piping |0.18 | Slow refill |0.95

 | | | | | Depth to water |0.81

 | | | | | Cutbanks cave |0.10

 | | | | | |

781C2: | | | | | |

 Lourdes, moderately | | | | | |

 eroded-------------|Somewhat limited | |Somewhat limited | |Somewhat limited |

 | Seepage |0.05 | Piping |0.15 | Slow refill |0.95

 | | | | | Depth to water |0.81

 | | | | | Cutbanks cave |0.10

 | | | | | |

782B: | | | | | |

 Donnan--------------|Somewhat limited | |Very limited | |Somewhat limited |

 | Seepage |0.70 | Depth to |1.00 | Slow refill |0.30

 | | | saturated zone | | Cutbanks cave |0.10

 | | | | | |

798: | | | | | |

 Protivin------------|Somewhat limited | |Very limited | |Somewhat limited |

 | Seepage |0.05 | Depth to |1.00 | Slow refill |0.30

 | | | saturated zone | | Cutbanks cave |0.10

 | | | Piping |0.02 | |

 | | | | | |

809B: | | | | | |

 Bertram-------------|Very limited | |Somewhat limited | |Very limited |

 | Seepage |1.00 | Thin layer |0.86 | No ground water |1.00

 | Depth to bedrock |0.86 | Seepage |0.03 | |

 | | | | | |
Black Hawk County, Iowa 347

Table 16.--Water Management--Continued

___________________________________________________________________________________________________

 | | |

 Map symbol | Pond reservoir areas | Embankments, dikes, and | Aquifer-fed

 and soil name | | levees | excavated ponds

 | | | _____________________________________________________________________________

 | Rating class and |Value| Rating class and |Value| Rating class and |Value

 | limiting features | | limiting features | | limiting features | ___________________________________________________________________________________________________

 | | | | | |

877B: | | | | | |

 Dinsmore------------|Somewhat limited | |Somewhat limited | |Somewhat limited |

 | Seepage |0.70 | Piping |0.18 | Depth to water |0.81

 | | | | | Slow refill |0.30

 | | | | | Cutbanks cave |0.10

 | | | | | |

884: | | | | | |

 Klingmore-----------|Somewhat limited | |Very limited | |Somewhat limited |

 | Seepage |0.70 | Depth to |1.00 | Slow refill |0.30

 | | | saturated zone | | Cutbanks cave |0.10

 | | | | | |

911B: | | | | | |

 Colo----------------|Somewhat limited | |Very limited | |Somewhat limited |

 | Seepage |0.70 | Depth to |1.00 | Slow refill |0.30

 | | | saturated zone | | Cutbanks cave |0.10

 | | | | | |

 Ely-----------------|Somewhat limited | |Very limited | |Somewhat limited |

 | Seepage |0.70 | Depth to |1.00 | Slow refill |0.30

 | | | saturated zone | | Cutbanks cave |0.10

 | | | Piping |0.25 | |

 | | | | | |

933: | | | | | |

 Sawmill, | | | | | |

 occasionally | | | | | |

 flooded------------|Somewhat limited | |Very limited | |Somewhat limited |

 | Seepage |0.70 | Depth to |1.00 | Slow refill |0.30

 | | | saturated zone | | Cutbanks cave |0.10

 | | | Piping |0.01 | |

 | | | | | |

982: | | | | | |

 Maxmore-------------|Somewhat limited | |Very limited | |Somewhat limited |

 | Seepage |0.70 | Depth to |1.00 | Slow refill |0.30

 | | | saturated zone | | Cutbanks cave |0.10

 | | | | | |

1152: | | | | | |

 Marshan, 24 to 40 | | | | | |

 inches to sand and | | | | | |

 gravel-------------|Very limited | |Very limited | |Very limited |

 | Seepage |1.00 | Depth to |1.00 | Cutbanks cave |1.00

 | | | saturated zone | | |

 | | | Seepage |0.82 | |

 | | | | | |

1226: | | | | | |

 Lawler, 24 to 40 | | | | | |

 inches to sand and | | | | | |

 gravel-------------|Very limited | |Very limited | |Very limited |

 | Seepage |1.00 | Depth to |1.00 | Cutbanks cave |1.00

 | | | saturated zone | | |

 | | | Seepage |0.08 | |

 | | | | | |

1285G: | | | | | |

 Burkhardt-----------|Very limited | |Somewhat limited | |Very limited |

 | Seepage |1.00 | Seepage |0.87 | No ground water |1.00

 | Slope |0.50 | | | |

 | | | | | |

 Bassett-------------|Somewhat limited | |Very limited | |Somewhat limited |

 | Seepage |0.70 | Depth to |1.00 | Slow refill |0.30

 | Slope |0.50 | saturated zone | | Cutbanks cave |0.10

 | | | Piping |0.61 | Depth to water |0.01

 | | | | | |
348 Soil Survey of

Table 16.--Water Management--Continued

___________________________________________________________________________________________________

 | | |

 Map symbol | Pond reservoir areas | Embankments, dikes, and | Aquifer-fed

 and soil name | | levees | excavated ponds

 | | | _____________________________________________________________________________

 | Rating class and |Value| Rating class and |Value| Rating class and |Value

 | limiting features | | limiting features | | limiting features | ___________________________________________________________________________________________________

 | | | | | |

1285G: | | | | | |

 Chelsea-------------|Very limited | |Somewhat limited | |Very limited |

 | Seepage |1.00 | Seepage |0.19 | No ground water |1.00

 | Slope |0.50 | | | |

 | | | | | |

1585: | | | | | |

 Spillville, | | | | | |

 frequently flooded |Very limited | |Very limited | |Somewhat limited |

 | Seepage |1.00 | Depth to |1.00 | Cutbanks cave |0.10

 | | | saturated zone | | |

 | | | Piping |0.59 | |

 | | | | | |

 Coland, frequently | | | | | |

 flooded------------|Very limited | |Very limited | |Somewhat limited |

 | Seepage |1.00 | Depth to |1.00 | Cutbanks cave |0.10

 | | | saturated zone | | |

 | | | Piping |0.22 | |

 | | | Seepage |0.03 | |

 | | | | | |

 Aquolls, ponded-----|Not limited | |Very limited | |Somewhat limited |

 | | | Ponding |1.00 | Cutbanks cave |0.10

 | | | Depth to |1.00 | |

 | | | saturated zone | | |

 | | | | | |

1586: | | | | | |

 Sigglekov, | | | | | |

 frequently flooded |Very limited | |Very limited | |Very limited |

 | Seepage |1.00 | Depth to |1.00 | Cutbanks cave |1.00

 | | | saturated zone | | |

 | | | Seepage |0.52 | |

 | | | | | |

 Fluvaquents, | | | | | |

 frequently flooded |Not limited | |Very limited | |Somewhat limited |

 | | | Depth to | | Cutbanks cave |0.10

 | | | saturated zone | | |

 | | | | | |

 Aquents, ponded-----|Not limited | |Very limited | |Somewhat limited |

 | | | Ponding |1.00 | Cutbanks cave |0.10

 | | | Depth to |1.00 | |

 | | | saturated zone | | |

 | | | | | |

4000: | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4007: | | | | | |

 Wiota---------------|Very limited | |Somewhat limited | |Very limited |

 | Seepage |1.00 | Piping |0.81 | No ground water |1.00

 | | | Seepage |0.10 | |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4041: | | | | | |

 Sparta--------------|Very limited | |Somewhat limited | |Very limited |

 | Seepage |1.00 | Seepage |0.35 | No ground water |1.00

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |
Black Hawk County, Iowa 349

Table 16.--Water Management--Continued

___________________________________________________________________________________________________

 | | |

 Map symbol | Pond reservoir areas | Embankments, dikes, and | Aquifer-fed

 and soil name | | levees | excavated ponds

 | | | _____________________________________________________________________________

 | Rating class and |Value| Rating class and |Value| Rating class and |Value

 | limiting features | | limiting features | | limiting features | ___________________________________________________________________________________________________

 | | | | | |

4041B: | | | | | |

 Sparta--------------|Very limited | |Somewhat limited | |Very limited |

 | Seepage |1.00 | Seepage |0.35 | No ground water |1.00

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4041C: | | | | | |

 Sparta--------------|Very limited | |Somewhat limited | |Very limited |

 | Seepage |1.00 | Seepage |0.35 | No ground water |1.00

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4041D: | | | | | |

 Sparta--------------|Very limited | |Somewhat limited | |Very limited |

 | Seepage |1.00 | Seepage |0.35 | No ground water |1.00

 | Slope |0.01 | | | |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4063B: | | | | | |

 Chelsea-------------|Very limited | |Somewhat limited | |Very limited |

 | Seepage |1.00 | Seepage |0.12 | No ground water |1.00

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4063C: | | | | | |

 Chelsea-------------|Very limited | |Somewhat limited | |Very limited |

 | Seepage |1.00 | Seepage |0.12 | No ground water |1.00

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4063D: | | | | | |

 Chelsea-------------|Very limited | |Somewhat limited | |Very limited |

 | Seepage |1.00 | Seepage |0.12 | No ground water |1.00

 | Slope |0.01 | | | |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4083B: | | | | | |

 Kenyon--------------|Somewhat limited | |Somewhat limited | |Somewhat limited |

 | Seepage |0.70 | Piping |0.50 | Depth to water |0.81

 | | | | | Slow refill |0.30

 | | | | | Cutbanks cave |0.10

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4083C: | | | | | |

 Kenyon--------------|Somewhat limited | |Somewhat limited | |Somewhat limited |

 | Seepage |0.70 | Piping |0.50 | Depth to water |0.81

 | | | | | Slow refill |0.30

 | | | | | Cutbanks cave |0.10

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4083D: | | | | | |

 Kenyon--------------|Somewhat limited | |Somewhat limited | |Somewhat limited |

 | Seepage |0.70 | Piping |0.50 | Depth to water |0.81

 | Slope |0.01 | | | Slow refill |0.30

 | | | | | Cutbanks cave |0.10

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |
350 Soil Survey of

Table 16.--Water Management--Continued

___________________________________________________________________________________________________

 | | |

 Map symbol | Pond reservoir areas | Embankments, dikes, and | Aquifer-fed

 and soil name | | levees | excavated ponds

 | | | _____________________________________________________________________________

 | Rating class and |Value| Rating class and |Value| Rating class and |Value

 | limiting features | | limiting features | | limiting features | ___________________________________________________________________________________________________

 | | | | | |

4084: | | | | | |

 Clyde---------------|Somewhat limited | |Very limited | |Somewhat limited |

 | Seepage |0.70 | Depth to |1.00 | Slow refill |0.30

 | | | saturated zone | | Cutbanks cave |0.10

 | | | Piping |0.30 | |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4088: | | | | | |

 Nevin---------------|Somewhat limited | |Very limited | |Very limited |

 | Seepage |0.70 | Depth to |1.00 | Cutbanks cave |1.00

 | | | saturated zone | | Slow refill |0.30

 | | | Piping |0.49 | |

 | | | Seepage |0.42 | |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4133: | | | | | |

 Colo, occasionally | | | | | |

 flooded------------|Somewhat limited | |Very limited | |Somewhat limited |

 | Seepage |0.70 | Depth to |1.00 | Slow refill |0.30

 | | | saturated zone | | Cutbanks cave |0.10

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4135: | | | | | |

 Coland, occasionally| | | | | |

 flooded------------|Very limited | |Very limited | |Somewhat limited |

 | Seepage |1.00 | Depth to |1.00 | Cutbanks cave |0.10

 | | | saturated zone | | |

 | | | Piping |0.31 | |

 | | | Seepage |0.03 | |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4152: | | | | | |

 Marshan, 24 to 40 | | | | | |

 inches to sand and | | | | | |

 gravel-------------|Very limited | |Very limited | |Very limited |

 | Seepage |1.00 | Depth to |1.00 | Cutbanks cave |1.00

 | | | saturated zone | | |

 | | | Seepage |0.82 | |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4159: | | | | | |

 Finchford-----------|Very limited | |Somewhat limited | |Very limited |

 | Seepage |1.00 | Seepage |0.46 | No ground water |1.00

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4159C: | | | | | |

 Finchford-----------|Very limited | |Somewhat limited | |Very limited |

 | Seepage |1.00 | Seepage |0.46 | No ground water |1.00

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |
Black Hawk County, Iowa 351

Table 16.--Water Management--Continued

___________________________________________________________________________________________________

 | | |

 Map symbol | Pond reservoir areas | Embankments, dikes, and | Aquifer-fed

 and soil name | | levees | excavated ponds

 | | | _____________________________________________________________________________

 | Rating class and |Value| Rating class and |Value| Rating class and |Value

 | limiting features | | limiting features | | limiting features | ___________________________________________________________________________________________________

 | | | | | |

4171B: | | | | | |

 Bassett-------------|Somewhat limited | |Very limited | |Somewhat limited |

 | Seepage |0.70 | Depth to |1.00 | Slow refill |0.30

 | | | saturated zone | | Cutbanks cave |0.10

 | | | Piping |0.61 | Depth to water |0.01

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4171D: | | | | | |

 Bassett-------------|Somewhat limited | |Very limited | |Somewhat limited |

 | Seepage |0.70 | Depth to |1.00 | Slow refill |0.30

 | Slope |0.01 | saturated zone | | Cutbanks cave |0.10

 | | | Piping |0.61 | Depth to water |0.01

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4175: | | | | | |

 Dickinson-----------|Very limited | |Somewhat limited | |Very limited |

 | Seepage |1.00 | Seepage |0.36 | No ground water |1.00

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4175B: | | | | | |

 Dickinson-----------|Very limited | |Somewhat limited | |Very limited |

 | Seepage |1.00 | Seepage |0.36 | No ground water |1.00

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4177: | | | | | |

 Saude---------------|Very limited | |Somewhat limited | |Very limited |

 | Seepage |1.00 | Seepage |0.60 | No ground water |1.00

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4177B: | | | | | |

 Saude---------------|Very limited | |Somewhat limited | |Very limited |

 | Seepage |1.00 | Seepage |0.60 | No ground water |1.00

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4178: | | | | | |

 Waukee--------------|Very limited | |Somewhat limited | |Very limited |

 | Seepage |1.00 | Seepage |0.67 | No ground water |1.00

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4184: | | | | | |

 Klinger-------------|Somewhat limited | |Very limited | |Somewhat limited |

 | Seepage |0.70 | Depth to |1.00 | Slow refill |0.30

 | | | saturated zone | | Cutbanks cave |0.10

 | | | Piping |0.05 | |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4198B: | | | | | |

 Floyd---------------|Very limited | |Very limited | |Somewhat limited |

 | Seepage |1.00 | Depth to |1.00 | Cutbanks cave |0.10

 | | | saturated zone | | |

 | | | Piping |0.95 | |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |
352 Soil Survey of

Table 16.--Water Management--Continued

___________________________________________________________________________________________________

 | | |

 Map symbol | Pond reservoir areas | Embankments, dikes, and | Aquifer-fed

 and soil name | | levees | excavated ponds

 | | | _____________________________________________________________________________

 | Rating class and |Value| Rating class and |Value| Rating class and |Value

 | limiting features | | limiting features | | limiting features | ___________________________________________________________________________________________________

 | | | | | |

4226: | | | | | |

 Lawler, 24 to 40 | | | | | |

 inches to sand and | | | | | |

 gravel-------------|Very limited | |Very limited | |Very limited |

 | Seepage |1.00 | Depth to |1.00 | Cutbanks cave |1.00

 | | | saturated zone | | |

 | | | Seepage |0.08 | |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4284: | | | | | |

 Flagler-------------|Very limited | |Somewhat limited | |Very limited |

 | Seepage |1.00 | Seepage |0.08 | No ground water |1.00

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4284B: | | | | | |

 Flagler-------------|Very limited | |Somewhat limited | |Very limited |

 | Seepage |1.00 | Seepage |0.08 | No ground water |1.00

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4377B: | | | | | |

 Dinsdale------------|Somewhat limited | |Somewhat limited | |Somewhat limited |

 | Seepage |0.70 | Piping |0.22 | Depth to water |0.81

 | | | | | Slow refill |0.30

 | | | | | Cutbanks cave |0.10

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4377C: | | | | | |

 Dinsdale------------|Somewhat limited | |Somewhat limited | |Somewhat limited |

 | Seepage |0.70 | Piping |0.22 | Depth to water |0.81

 | | | | | Slow refill |0.30

 | | | | | Cutbanks cave |0.10

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4382: | | | | | |

 Maxfield------------|Somewhat limited | |Very limited | |Somewhat limited |

 | Seepage |0.70 | Depth to |1.00 | Slow refill |0.30

 | | | saturated zone | | Cutbanks cave |0.10

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4391B: | | | | | |

 Clyde---------------|Somewhat limited | |Very limited | |Somewhat limited |

 | Seepage |0.70 | Depth to |1.00 | Slow refill |0.30

 | | | saturated zone | | Cutbanks cave |0.10

 | | | Piping |0.30 | |

 | | | | | |

 Floyd---------------|Very limited | |Very limited | |Somewhat limited |

 | Seepage |1.00 | Depth to |1.00 | Cutbanks cave |0.10

 | | | saturated zone | | |

 | | | Piping |0.95 | |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |
Black Hawk County, Iowa 353

Table 16.--Water Management--Continued

___________________________________________________________________________________________________

 | | |

 Map symbol | Pond reservoir areas | Embankments, dikes, and | Aquifer-fed

 and soil name | | levees | excavated ponds

 | | | _____________________________________________________________________________

 | Rating class and |Value| Rating class and |Value| Rating class and |Value

 | limiting features | | limiting features | | limiting features | ___________________________________________________________________________________________________

 | | | | | |

4398: | | | | | |

 Tripoli-------------|Somewhat limited | |Very limited | |Somewhat limited |

 | Seepage |0.70 | Depth to |1.00 | Slow refill |0.30

 | | | saturated zone | | Cutbanks cave |0.10

 | | | Piping |0.21 | |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4399: | | | | | |

 Readlyn-------------|Somewhat limited | |Very limited | |Somewhat limited |

 | Seepage |0.70 | Depth to |1.00 | Slow refill |0.30

 | | | saturated zone | | Cutbanks cave |0.10

 | | | Piping |0.26 | |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4408B: | | | | | |

 Olin----------------|Very limited | |Somewhat limited | |Very limited |

 | Seepage |1.00 | Piping |0.91 | No ground water |1.00

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4408C: | | | | | |

 Olin----------------|Very limited | |Somewhat limited | |Very limited |

 | Seepage |1.00 | Piping |0.91 | No ground water |1.00

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4426B: | | | | | |

 Aredale-------------|Very limited | |Very limited | |Very limited |

 | Seepage |1.00 | Piping |0.99 | No ground water |1.00

 | | | Seepage |0.02 | |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4426C: | | | | | |

 Aredale-------------|Very limited | |Very limited | |Very limited |

 | Seepage |1.00 | Piping |0.99 | No ground water |1.00

 | | | Seepage |0.02 | |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4585: | | | | | |

 Spillville, | | | | | |

 occasionally | | | | | |

 flooded------------|Very limited | |Very limited | |Somewhat limited |

 | Seepage |1.00 | Depth to |1.00 | Cutbanks cave |0.10

 | | | saturated zone | | |

 | | | Piping |0.59 | |

 | | | | | |

 Coland, occasionally| | | | | |

 flooded------------|Very limited | |Very limited | |Somewhat limited |

 | Seepage |1.00 | Depth to |1.00 | Cutbanks cave |0.10

 | | | saturated zone | | |

 | | | Piping |0.22 | |

 | | | Seepage |0.03 | |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |
354 Soil Survey of

Table 16.--Water Management--Continued

___________________________________________________________________________________________________

 | | |

 Map symbol | Pond reservoir areas | Embankments, dikes, and | Aquifer-fed

 and soil name | | levees | excavated ponds

 | | | _____________________________________________________________________________

 | Rating class and |Value| Rating class and |Value| Rating class and |Value

 | limiting features | | limiting features | | limiting features | ___________________________________________________________________________________________________

 | | | | | |

4761: | | | | | |

 Franklin------------|Somewhat limited | |Very limited | |Somewhat limited |

 | Seepage |0.70 | Depth to |1.00 | Slow refill |0.30

 | | | saturated zone | | Cutbanks cave |0.10

 | | | Piping |0.30 | |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4771B: | | | | | |

 Waubeek-------------|Somewhat limited | |Somewhat limited | |Somewhat limited |

 | Seepage |0.70 | Piping |0.45 | Depth to water |0.81

 | | | | | Slow refill |0.30

 | | | | | Cutbanks cave |0.10

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4771D: | | | | | |

 Waubeek-------------|Somewhat limited | |Somewhat limited | |Somewhat limited |

 | Seepage |0.70 | Piping |0.45 | Depth to water |0.81

 | | | | | Slow refill |0.30

 | | | | | Cutbanks cave |0.10

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4798: | | | | | |

 Protivin------------|Somewhat limited | |Very limited | |Somewhat limited |

 | Seepage |0.05 | Depth to |1.00 | Slow refill |0.30

 | | | saturated zone | | Cutbanks cave |0.10

 | | | Piping |0.02 | |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4911B: | | | | | |

 Colo----------------|Somewhat limited | |Very limited | |Somewhat limited |

 | Seepage |0.70 | Depth to |1.00 | Slow refill |0.30

 | | | saturated zone | | Cutbanks cave |0.10

 | | | | | |

 Ely-----------------|Somewhat limited | |Very limited | |Somewhat limited |

 | Seepage |0.70 | Depth to |1.00 | Slow refill |0.30

 | | | saturated zone | | Cutbanks cave |0.10

 | | | Piping |0.25 | |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4933: | | | | | |

 Sawmill, | | | | | |

 occasionally | | | | | |

 flooded------------|Somewhat limited | |Very limited | |Somewhat limited |

 | Seepage |0.70 | Depth to |1.00 | Slow refill |0.30

 | | | saturated zone | | Cutbanks cave |0.10

 | | | Piping |0.01 | |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4946: | | | | | |

 Orthents, loamy-----|Not rated | |Not rated | |Not rated |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |
Black Hawk County, Iowa 355

Table 16.--Water Management--Continued

___________________________________________________________________________________________________

 | | |

 Map symbol | Pond reservoir areas | Embankments, dikes, and | Aquifer-fed

 and soil name | | levees | excavated ponds

 | | | _____________________________________________________________________________

 | Rating class and |Value| Rating class and |Value| Rating class and |Value

 | limiting features | | limiting features | | limiting features | ___________________________________________________________________________________________________

 | | | | | |

5010: | | | | | |

 Pits, sand and | | | | | |

 gravel-------------|Not rated | |Not rated | |Not rated |

 | | | | | |

5030: | | | | | |

 Pits, limestone | | | | | |

 quarries-----------|Not rated | |Not rated | |Not rated |

 | | | | | |

5040: | | | | | |

 Orthents, loamy-----|Not rated | |Not rated | |Not rated |

 | | | | | |

5053: | | | | | |

 Psammaquents, | | | | | |

 frequently flooded |Not limited | |Very limited | |Somewhat limited |

 | | | Depth to |1.00 | Cutbanks cave |0.10

 | | | saturated zone | | |

 | | | | | |

5080: | | | | | |

 Orthents, sanitary | | | | | |

 landfill-----------|Not rated | |Not rated | |Not rated |

 | | | | | |

AW: | | | | | |

 Animal waste--------|Not rated | |Not rated | |Not rated |

 | | | | | |

SL: | | | | | |

 Sewage lagoon-------|Not rated | |Not rated | |Not rated |

 | | | | | |

W: | | | | | |

 Water---------------|Not rated | |Not rated | |Not rated |

 | | | | | | ___________________________________________________________________________________________________
356 Soil Survey of

Table 17a.--Agricultural Waste 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. "Not rated" indicates that data are not

 available or that no rating is applicable. See text for further explanation of ratings in

 this table)

___________________________________________________________________________________________________

 | | |

 Map symbol | Application of | Application | Disposal of

 and soil name | manure and food- | of sewage sludge | wastewater

 | processing waste | | by irrigation _____________________________________________________________________________

 | Rating class and |Value| Rating class and |Value| Rating class and |Value

 | limiting features | | limiting features | | limiting features | ___________________________________________________________________________________________________

 | | | | | |

7: | | | | | |

 Wiota---------------|Very limited | |Very limited | |Very limited |

 | Filtering |1.00 | Filtering |1.00 | Filtering |1.00

 | capacity | | capacity | | capacity |

 | | | | | |

41: | | | | | |

 Sparta--------------|Very limited | |Very limited | |Very limited |

 | Filtering |1.00 | Filtering |1.00 | Filtering |1.00

 | capacity | | capacity | | capacity |

 | Leaching |0.45 | Droughty |0.32 | Droughty |0.32

 | Droughty |0.32 | Too acid |0.07 | Too acid |0.07

 | Too acid |0.02 | | | |

 | | | | | |

41B: | | | | | |

 Sparta--------------|Very limited | |Very limited | |Very limited |

 | Filtering |1.00 | Filtering |1.00 | Filtering |1.00

 | capacity | | capacity | | capacity |

 | Leaching |0.45 | Droughty |0.32 | Droughty |0.32

 | Droughty |0.32 | Too acid |0.07 | Too steep for |0.08

 | Too acid |0.02 | | | surface |

 | | | | | application |

 | | | | | Too acid |0.07

 | | | | | |

41C: | | | | | |

 Sparta--------------|Very limited | |Very limited | |Very limited |

 | Filtering |1.00 | Filtering |1.00 | Filtering |1.00

 | capacity | | capacity | | capacity |

 | Leaching |0.45 | Droughty |0.36 | Too steep for |0.92

 | Droughty |0.36 | Too acid |0.07 | surface |

 | Too acid |0.02 | | | application |

 | | | | | Droughty |0.36

 | | | | | Too acid |0.07

 | | | | | Too steep for |0.02

 | | | | | sprinkler |

 | | | | | application |

 | | | | | |

41D: | | | | | |

 Sparta--------------|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 | Droughty |0.38 | surface |

 | Droughty |0.38 | Too acid |0.07 | application |

 | Too acid |0.02 | | | Too steep for |0.78

 | | | | | sprinkler |

 | | | | | application |

 | | | | | Droughty |0.38

 | | | | | Too acid |0.07

 | | | | | |
Black Hawk County, Iowa 357

Table 17a.--Agricultural Waste Management--Continued

___________________________________________________________________________________________________

 | | |

 Map symbol | Application of | Application | Disposal of

 and soil name | manure and food- | of sewage sludge | wastewater

 | processing waste | | by irrigation _____________________________________________________________________________

 | Rating class and |Value| Rating class and |Value| Rating class and |Value

 | limiting features | | limiting features | | limiting features | ___________________________________________________________________________________________________

 | | | | | |

63B: | | | | | |

 Chelsea-------------|Very limited | |Very limited | |Very limited |

 | Filtering |1.00 | Filtering |1.00 | Filtering |1.00

 | capacity | | capacity | | capacity |

 | Leaching |0.45 | Droughty |0.06 | Too steep for |0.08

 | Droughty |0.06 | | | surface |

 | | | | | application |

 | | | | | Droughty |0.06

 | | | | | |

63C: | | | | | |

 Chelsea-------------|Very limited | |Very limited | |Very limited |

 | Filtering |1.00 | Filtering |1.00 | Filtering |1.00

 | capacity | | capacity | | capacity |

 | Leaching |0.45 | Droughty |0.06 | Too steep for |0.92

 | Droughty |0.06 | | | surface |

 | | | | | application |

 | | | | | Droughty |0.06

 | | | | | Too steep for |0.02

 | | | | | sprinkler |

 | | | | | application |

 | | | | | |

63D: | | | | | |

 Chelsea-------------|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 | Droughty |0.06 | surface |

 | Droughty |0.06 | | | application |

 | | | | | Too steep for |0.78

 | | | | | sprinkler |

 | | | | | application |

 | | | | | Droughty |0.06

 | | | | | |

83B: | | | | | |

 Kenyon--------------|Not limited | |Not limited | |Somewhat limited |

 | | | | | Too steep for |0.08

 | | | | | surface |

 | | | | | application |

 | | | | | |

83C: | | | | | |

 Kenyon--------------|Not limited | |Not limited | |Somewhat limited |

 | | | | | Too steep for |0.92

 | | | | | surface |

 | | | | | application |

 | | | | | Too steep for |0.02

 | | | | | sprinkler |

 | | | | | application |

 | | | | | |

83C2: | | | | | |

 Kenyon, moderately | | | | | |

 eroded-------------|Not limited | |Not limited | |Somewhat limited |

 | | | | | Too steep for |0.92

 | | | | | surface |

 | | | | | application |

 | | | | | Too steep for |0.02

 | | | | | sprinkler |

 | | | | | application |

 | | | | | |
358 Soil Survey of

Table 17a.--Agricultural Waste Management--Continued

___________________________________________________________________________________________________

 | | |

 Map symbol | Application of | Application | Disposal of

 and soil name | manure and food- | of sewage sludge | wastewater

 | processing waste | | by irrigation _____________________________________________________________________________

 | Rating class and |Value| Rating class and |Value| Rating class and |Value

 | limiting features | | limiting features | | limiting features | ___________________________________________________________________________________________________

 | | | | | |

83D2: | | | | | |

 Kenyon, moderately | | | | | |

 eroded-------------|Somewhat limited | |Somewhat limited | |Very limited |

 | Slope |0.63 | Slope |0.63 | Too steep for |1.00

 | | | | | surface |

 | | | | | application |

 | | | | | Too steep for |0.78

 | | | | | sprinkler |

 | | | | | application |

 | | | | | |

84: | | | | | |

 Clyde---------------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone | | saturated zone |

 | (Nov-Jul) | | (Nov-Jul) | | (Nov-Jul) |

 | Leaching |0.70 | | | |

 | | | | | |

88: | | | | | |

 Nevin---------------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone | | saturated zone |

 | (Nov-Jul) | | (Nov-Jul) | | (Nov-Jul) |

 | | | Flooding |0.40 | |

 | | | | | |

133: | | | | | |

 Colo, occasionally | | | | | |

 flooded------------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone | | saturated zone |

 | (Nov-Jul) | | (Nov-Jul) | | (Nov-Jul) |

 | Leaching |0.70 | Flooding |1.00 | Flooding |0.60

 | Flooding |0.60 | | | |

 | | | | | |

135: | | | | | |

 Coland, occasionally| | | | | |

 flooded------------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone | | saturated zone |

 | (Nov-Jul) | | (Nov-Jul) | | (Nov-Jul) |

 | Leaching |0.70 | Flooding |1.00 | Flooding |0.60

 | Flooding |0.60 | | | |

 | | | | | |

159: | | | | | |

 Finchford-----------|Very limited | |Very limited | |Very limited |

 | Filtering |1.00 | Filtering |1.00 | Filtering |1.00

 | capacity | | capacity | | capacity |

 | Droughty |0.71 | Droughty |0.71 | Droughty |0.71

 | Leaching |0.45 | | | |

 | | | | | |

159C: | | | | | |

 Finchford-----------|Very limited | |Very limited | |Very limited |

 | Filtering |1.00 | Filtering |1.00 | Filtering |1.00

 | capacity | | capacity | | capacity |

 | Droughty |0.83 | Droughty |0.83 | Droughty |0.83

 | Leaching |0.45 | | | Too steep for |0.68

 | | | | | surface |

 | | | | | application |

 | | | | | |
Black Hawk County, Iowa 359

Table 17a.--Agricultural Waste Management--Continued

___________________________________________________________________________________________________

 | | |

 Map symbol | Application of | Application | Disposal of

 and soil name | manure and food- | of sewage sludge | wastewater

 | processing waste | | by irrigation _____________________________________________________________________________

 | Rating class and |Value| Rating class and |Value| Rating class and |Value

 | limiting features | | limiting features | | limiting features | ___________________________________________________________________________________________________

 | | | | | |

171B: | | | | | |

 Bassett-------------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone | | saturated zone |

 | (Nov-Jul) | | (Nov-Jul) | | (Nov-Jul) |

 | Too acid |0.02 | Too acid |0.07 | Too steep for |0.08

 | | | | | surface |

 | | | | | application |

 | | | | | Too acid |0.07

 | | | | | |

175: | | | | | |

 Dickinson-----------|Very limited | |Very limited | |Very limited |

 | Filtering |1.00 | Filtering |1.00 | Filtering |1.00

 | capacity | | capacity | | capacity |

 | Droughty |0.05 | Droughty |0.05 | Droughty |0.05

 | | | | | |

175B: | | | | | |

 Dickinson-----------|Very limited | |Very limited | |Very limited |

 | Filtering |1.00 | Filtering |1.00 | Filtering |1.00

 | capacity | | capacity | | capacity |

 | Droughty |0.05 | Droughty |0.05 | Too steep for |0.08

 | | | | | surface |

 | | | | | application |

 | | | | | Droughty |0.05

 | | | | | |

177: | | | | | |

 Saude---------------|Very limited | |Very limited | |Very limited |

 | Filtering |1.00 | Filtering |1.00 | Filtering |1.00

 | capacity | | capacity | | capacity |

 | | | | | |

177B: | | | | | |

 Saude---------------|Very limited | |Very limited | |Very limited |

 | Filtering |1.00 | Filtering |1.00 | Filtering |1.00

 | capacity | | capacity | | capacity |

 | | | | | Too steep for |0.08

 | | | | | surface |

 | | | | | application |

 | | | | | |

178: | | | | | |

 Waukee--------------|Very limited | |Very limited | |Very limited |

 | Filtering |1.00 | Filtering |1.00 | Filtering |1.00

 | capacity | | capacity | | capacity |

 | Too acid |0.03 | Too acid |0.14 | Too acid |0.14

 | | | | | |

178B: | | | | | |

 Waukee--------------|Very limited | |Very limited | |Very limited |

 | Filtering |1.00 | Filtering |1.00 | Filtering |1.00

 | capacity | | capacity | | capacity |

 | Too acid |0.03 | Too acid |0.14 | Too acid |0.14

 | | | | | Too steep for |0.08

 | | | | | surface |

 | | | | | application |

 | | | | | |

184: | | | | | |

 Klinger-------------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone | | saturated zone |

 | (Nov-Jul) | | (Nov-Jul) | | (Nov-Jul) |

 | Too acid |0.02 | Too acid |0.07 | Too acid |0.07

 | | | | | |
360 Soil Survey of

Table 17a.--Agricultural Waste Management--Continued

___________________________________________________________________________________________________

 | | |

 Map symbol | Application of | Application | Disposal of

 and soil name | manure and food- | of sewage sludge | wastewater

 | processing waste | | by irrigation _____________________________________________________________________________

 | Rating class and |Value| Rating class and |Value| Rating class and |Value

 | limiting features | | limiting features | | limiting features | ___________________________________________________________________________________________________

 | | | | | |

198B: | | | | | |

 Floyd---------------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone | | saturated zone |

 | (Nov-Jul) | | (Nov-Jul) | | (Nov-Jul) |

 | Filtering |0.01 | Filtering |0.01 | Filtering |0.01

 | capacity | | capacity | | capacity |

 | | | | | |

213B: | | | | | |

 Rockton, 30 to 40 | | | | | |

 inches to limestone|Somewhat limited | |Very limited | |Somewhat limited |

 | Too acid |0.11 | Low adsorption |1.00 | Too acid |0.42

 | Depth to bedrock |0.10 | Too acid |0.42 | Depth to bedrock |0.10

 | | | Depth to bedrock |0.10 | Too steep for |0.08

 | | | | | surface |

 | | | | | application |

 | | | | | |

221: | | | | | |

 Klossner------------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone | | saturated zone |

 | (Nov-Jul) | | (Nov-Jul) | | (Nov-Jul) |

 | Leaching |0.90 | Too acid |0.07 | Too acid |0.07

 | Too acid |0.02 | | | |

 | | | | | |

284: | | | | | |

 Flagler-------------|Very limited | |Very limited | |Very limited |

 | Filtering |1.00 | Filtering |1.00 | Filtering |1.00

 | capacity | | capacity | | capacity |

 | Droughty |0.13 | Droughty |0.13 | Droughty |0.13

 | | | | | |

284B: | | | | | |

 Flagler-------------|Very limited | |Very limited | |Very limited |

 | Filtering |1.00 | Filtering |1.00 | Filtering |1.00

 | capacity | | capacity | | capacity |

 | Droughty |0.13 | Droughty |0.13 | Droughty |0.13

 | | | | | Too steep for |0.08

 | | | | | surface |

 | | | | | application |

 | | | | | |

290: | | | | | |

 Dells---------------|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 |

 | (Nov-Jul) | | (Nov-Jul) | | (Nov-Jul) |

 | | | | | |

354: | | | | | |

 Aquolls, ponded-----|Not rated | |Not rated | |Not rated |

 | | | | | |

377B: | | | | | |

 Dinsdale------------|Somewhat limited | |Somewhat limited | |Somewhat limited |

 | Too acid |0.02 | Too acid |0.07 | Too steep for |0.08

 | | | | | surface |

 | | | | | application |

 | | | | | Too acid |0.07

 | | | | | |
Black Hawk County, Iowa 361

Table 17a.--Agricultural Waste Management--Continued

___________________________________________________________________________________________________

 | | |

 Map symbol | Application of | Application | Disposal of

 and soil name | manure and food- | of sewage sludge | wastewater

 | processing waste | | by irrigation _____________________________________________________________________________

 | Rating class and |Value| Rating class and |Value| Rating class and |Value

 | limiting features | | limiting features | | limiting features | ___________________________________________________________________________________________________

 | | | | | |

377C: | | | | | |

 Dinsdale------------|Somewhat limited | |Somewhat limited | |Somewhat limited |

 | Too acid |0.02 | Too acid |0.07 | Too steep for |0.92

 | | | | | surface |

 | | | | | application |

 | | | | | Too acid |0.07

 | | | | | Too steep for |0.02

 | | | | | sprinkler |

 | | | | | application |

 | | | | | |

377C2: | | | | | |

 Dinsdale, moderately| | | | | |

 eroded-------------|Somewhat limited | |Somewhat limited | |Somewhat limited |

 | Too acid |0.02 | Too acid |0.07 | Too steep for |0.92

 | | | | | surface |

 | | | | | application |

 | | | | | Too acid |0.07

 | | | | | Too steep for |0.02

 | | | | | sprinkler |

 | | | | | application |

 | | | | | |

382: | | | | | |

 Maxfield------------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone | | saturated zone |

 | (Nov-Jul) | | (Nov-Jul) | | (Nov-Jul) |

 | Leaching |0.70 | | | |

 | | | | | |

391B: | | | | | |

 Clyde---------------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone | | saturated zone |

 | (Nov-Jul) | | (Nov-Jul) | | (Nov-Jul) |

 | Leaching |0.70 | | | |

 | | | | | |

 Floyd---------------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone | | saturated zone |

 | (Nov-Jul) | | (Nov-Jul) | | (Nov-Jul) |

 | Filtering |0.01 | Filtering |0.01 | Filtering |0.01

 | capacity | | capacity | | capacity |

 | | | | | |

395B: | | | | | |

 Marquis-------------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone | | saturated zone |

 | (Nov-Jul) | | (Nov-Jul) | | (Nov-Jul) |

 | | | | | Too steep for |0.08

 | | | | | surface |

 | | | | | application |

 | | | | | |

398: | | | | | |

 Tripoli-------------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone | | saturated zone |

 | (Nov-Jul) | | (Nov-Jul) | | (Nov-Jul) |

 | Leaching |0.70 | | | |

 | | | | | |
362 Soil Survey of

Table 17a.--Agricultural Waste Management--Continued

___________________________________________________________________________________________________

 | | |

 Map symbol | Application of | Application | Disposal of

 and soil name | manure and food- | of sewage sludge | wastewater

 | processing waste | | by irrigation _____________________________________________________________________________

 | Rating class and |Value| Rating class and |Value| Rating class and |Value

 | limiting features | | limiting features | | limiting features | ___________________________________________________________________________________________________

 | | | | | |

399: | | | | | |

 Readlyn-------------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone | | saturated zone |

 | (Nov-Jul) | | (Nov-Jul) | | (Nov-Jul) |

 | Too acid |0.02 | Too acid |0.07 | Too acid |0.07

 | | | | | |

408B: | | | | | |

 Olin----------------|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 |

 | | | | | |

408C: | | | | | |

 Olin----------------|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 |

 | | | | | |

412C: | | | | | |

 Emeline-------------|Not rated | |Not rated | |Not rated |

 | | | | | |

426B: | | | | | |

 Aredale-------------|Somewhat limited | |Somewhat limited | |Somewhat limited |

 | Restricted |0.30 | Restricted |0.22 | Restricted |0.22

 | permeability | | permeability | | permeability |

 | Filtering |0.01 | Filtering |0.01 | Too steep for |0.08

 | capacity | | capacity | | surface |

 | | | | | application |

 | | | | | Filtering |0.01

 | | | | | capacity |

 | | | | | |

426C: | | | | | |

 Aredale-------------|Somewhat limited | |Somewhat limited | |Somewhat limited |

 | Restricted |0.30 | Restricted |0.22 | Too steep for |0.92

 | permeability | | permeability | | surface |

 | Filtering |0.01 | Filtering |0.01 | application |

 | capacity | | capacity | | Restricted |0.22

 | | | | | permeability |

 | | | | | Too steep for |0.02

 | | | | | sprinkler |

 | | | | | application |

 | | | | | Filtering |0.01

 | | | | | capacity |

 | | | | | |
Black Hawk County, Iowa 363

Table 17a.--Agricultural Waste Management--Continued

___________________________________________________________________________________________________

 | | |

 Map symbol | Application of | Application | Disposal of

 and soil name | manure and food- | of sewage sludge | wastewater

 | processing waste | | by irrigation _____________________________________________________________________________

 | Rating class and |Value| Rating class and |Value| Rating class and |Value

 | limiting features | | limiting features | | limiting features | ___________________________________________________________________________________________________

 | | | | | |

426C2: | | | | | |

 Aredale, moderately | | | | | |

 eroded-------------|Somewhat limited | |Somewhat limited | |Somewhat limited |

 | Restricted |0.30 | Restricted |0.22 | Too steep for |0.92

 | permeability | | permeability | | surface |

 | Filtering |0.01 | Filtering |0.01 | application |

 | capacity | | capacity | | Restricted |0.22

 | | | | | permeability |

 | | | | | Too steep for |0.02

 | | | | | sprinkler |

 | | | | | application |

 | | | | | Filtering |0.01

 | | | | | capacity |

 | | | | | |

468B: | | | | | |

 Dunkerton-----------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone | | saturated zone |

 | (Nov-Jul) | | (Nov-Jul) | | (Nov-Jul) |

 | Restricted |0.30 | Restricted |0.22 | Restricted |0.22

 | permeability | | permeability | | permeability |

 | Filtering |0.01 | Filtering |0.01 | Too steep for |0.08

 | capacity | | capacity | | surface |

 | | | | | application |

 | | | | | Filtering |0.01

 | | | | | capacity |

 | | | | | |

468C: | | | | | |

 Dunkerton-----------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone | | saturated zone |

 | (Nov-Jul) | | (Nov-Jul) | | (Nov-Jul) |

 | Restricted |0.30 | Restricted |0.22 | Too steep for |0.92

 | permeability | | permeability | | surface |

 | Filtering |0.01 | Filtering |0.01 | application |

 | capacity | | capacity | | Restricted |0.22

 | | | | | permeability |

 | | | | | Too steep for |0.02

 | | | | | sprinkler |

 | | | | | application |

 | | | | | Filtering |0.01

 | | | | | capacity |

 | | | | | |

471: | | | | | |

 Oran----------------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone | | saturated zone |

 | (Nov-Jul) | | (Nov-Jul) | | (Nov-Jul) |

 | Too acid |0.02 | Too acid |0.07 | Too acid |0.07

 | | | | | |

485: | | | | | |

 Spillville, | | | | | |

 occasionally | | | | | |

 flooded------------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone | | saturated zone |

 | (Nov-Jul) | | (Nov-Jul) | | (Nov-Jul) |

 | Flooding |0.60 | Flooding |1.00 | Flooding |0.60

 | | | | | |
364 Soil Survey of

Table 17a.--Agricultural Waste Management--Continued

___________________________________________________________________________________________________

 | | |

 Map symbol | Application of | Application | Disposal of

 and soil name | manure and food- | of sewage sludge | wastewater

 | processing waste | | by irrigation _____________________________________________________________________________

 | Rating class and |Value| Rating class and |Value| Rating class and |Value

 | limiting features | | limiting features | | limiting features | ___________________________________________________________________________________________________

 | | | | | |

585: | | | | | |

 Spillville, | | | | | |

 occasionally | | | | | |

 flooded------------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone | | saturated zone |

 | (Nov-Jul) | | (Nov-Jul) | | (Nov-Jul) |

 | Flooding |0.60 | Flooding |1.00 | Flooding |0.60

 | | | | | |

 Coland, occasionally| | | | | |

 flooded------------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone | | saturated zone |

 | (Nov-Jul) | | (Nov-Jul) | | (Nov-Jul) |

 | Leaching |0.70 | Flooding |1.00 | Flooding |0.60

 | Flooding |0.60 | | | |

 | | | | | |

626: | | | | | |

 Hayfield, 24 to 40 | | | | | |

 inches to sand and | | | | | |

 gravel-------------|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 |

 | (Nov-Jul) | | (Nov-Jul) | | (Nov-Jul) |

 | | | | | |

761: | | | | | |

 Franklin------------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone | | saturated zone |

 | (Nov-Jul) | | (Nov-Jul) | | (Nov-Jul) |

 | Too acid |0.08 | Too acid |0.31 | Too acid |0.31

 | | | | | |

771B: | | | | | |

 Waubeek-------------|Not limited | |Not limited | |Somewhat limited |

 | | | | | Too steep for |0.08

 | | | | | surface |

 | | | | | application |

 | | | | | |

775B: | | | | | |

 Billett-------------|Very limited | |Very limited | |Very limited |

 | Filtering |1.00 | Filtering |1.00 | Filtering |1.00

 | capacity | | capacity | | capacity |

 | Too acid |0.02 | Too acid |0.07 | Too steep for |0.08

 | | | | | surface |

 | | | | | application |

 | | | | | Too acid |0.07

 | | | | | |

776C: | | | | | |

 Lilah---------------|Very limited | |Very limited | |Very limited |

 | Filtering |1.00 | Filtering |1.00 | Filtering |1.00

 | capacity | | capacity | | capacity |

 | Droughty |1.00 | Droughty |1.00 | Droughty |1.00

 | Leaching |0.45 | Too acid |0.67 | Too steep for |0.68

 | Too acid |0.18 | | | surface |

 | | | | | application |

 | | | | | Too acid |0.67

 | | | | | |
Black Hawk County, Iowa 365

Table 17a.--Agricultural Waste Management--Continued

___________________________________________________________________________________________________

 | | |

 Map symbol | Application of | Application | Disposal of

 and soil name | manure and food- | of sewage sludge | wastewater

 | processing waste | | by irrigation _____________________________________________________________________________

 | Rating class and |Value| Rating class and |Value| Rating class and |Value

 | limiting features | | limiting features | | limiting features | ___________________________________________________________________________________________________

 | | | | | |

777: | | | | | |

 Wapsie--------------|Very limited | |Very limited | |Very limited |

 | Filtering |1.00 | Filtering |1.00 | Filtering |1.00

 | capacity | | capacity | | capacity |

 | | | | | |

781B: | | | | | |

 Lourdes-------------|Somewhat limited | |Somewhat limited | |Somewhat limited |

 | Restricted |0.30 | Restricted |0.22 | Restricted |0.22

 | permeability | | permeability | | permeability |

 | | | | | Too steep for |0.08

 | | | | | surface |

 | | | | | application |

 | | | | | |

781C2: | | | | | |

 Lourdes, moderately | | | | | |

 eroded-------------|Somewhat limited | |Somewhat limited | |Somewhat limited |

 | Restricted |0.30 | Restricted |0.22 | Too steep for |0.92

 | permeability | | permeability | | surface |

 | | | | | application |

 | | | | | Restricted |0.22

 | | | | | permeability |

 | | | | | Too steep for |0.02

 | | | | | sprinkler |

 | | | | | application |

 | | | | | |

782B: | | | | | |

 Donnan--------------|Very limited | |Very limited | |Very limited |

 | 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 |

 | (Nov-Jul) | | (Nov-Jul) | | (Nov-Jul) |

 | Too acid |0.02 | Too acid |0.07 | Too steep for |0.08

 | | | | | surface |

 | | | | | application |

 | | | | | Too acid |0.07

 | | | | | |

798: | | | | | |

 Protivin------------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone | | saturated zone |

 | (Nov-Jul) | | (Nov-Jul) | | (Nov-Jul) |

 | Restricted |0.30 | Restricted |0.22 | Restricted |0.22

 | permeability | | permeability | | permeability |

 | Too acid |0.02 | Too acid |0.07 | Too acid |0.07

 | | | | | |

809B: | | | | | |

 Bertram-------------|Somewhat limited | |Very limited | |Somewhat limited |

 | Droughty |0.85 | Low adsorption |1.00 | Droughty |0.85

 | Depth to bedrock |0.46 | Droughty |0.85 | Depth to bedrock |0.46

 | Filtering |0.01 | Depth to bedrock |0.46 | Too steep for |0.08

 | capacity | | Filtering |0.01 | surface |

 | | | capacity | | application |

 | | | | | Filtering |0.01

 | | | | | capacity |

 | | | | | |
366 Soil Survey of

Table 17a.--Agricultural Waste Management--Continued

___________________________________________________________________________________________________

 | | |

 Map symbol | Application of | Application | Disposal of

 and soil name | manure and food- | of sewage sludge | wastewater

 | processing waste | | by irrigation _____________________________________________________________________________

 | Rating class and |Value| Rating class and |Value| Rating class and |Value

 | limiting features | | limiting features | | limiting features | ___________________________________________________________________________________________________

 | | | | | |

877B: | | | | | |

 Dinsmore------------|Somewhat limited | |Somewhat limited | |Somewhat limited |

 | Too acid |0.02 | Too acid |0.07 | Too steep for |0.08

 | | | | | surface |

 | | | | | application |

 | | | | | Too acid |0.07

 | | | | | |

884: | | | | | |

 Klingmore-----------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone | | saturated zone |

 | (Nov-Jul) | | (Nov-Jul) | | (Nov-Jul) |

 | Too acid |0.02 | Too acid |0.07 | Too acid |0.07

 | | | | | |

911B: | | | | | |

 Colo----------------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone | | saturated zone |

 | (Nov-Jul) | | (Nov-Jul) | | (Nov-Jul) |

 | Leaching |0.70 | | | |

 | | | | | |

 Ely-----------------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone | | saturated zone |

 | (Nov-Jul) | | (Nov-Jul) | | (Nov-Jul) |

 | | | | | Too steep for |0.08

 | | | | | surface |

 | | | | | application |

 | | | | | |

933: | | | | | |

 Sawmill, | | | | | |

 occasionally | | | | | |

 flooded------------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone | | saturated zone |

 | (Nov-Jul) | | (Nov-Jul) | | (Nov-Jul) |

 | Leaching |0.70 | Flooding |1.00 | Flooding |0.60

 | Flooding |0.60 | | | |

 | | | | | |

982: | | | | | |

 Maxmore-------------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone | | saturated zone |

 | (Nov-Jul) | | (Nov-Jul) | | (Nov-Jul) |

 | Leaching |0.70 | | | |

 | | | | | |

1152: | | | | | |

 Marshan, 24 to 40 | | | | | |

 inches to sand and | | | | | |

 gravel-------------|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 |

 | (Nov-Jul) | | (Nov-Jul) | | (Nov-Jul) |

 | Leaching |0.70 | | | |

 | | | | | |
Black Hawk County, Iowa 367

Table 17a.--Agricultural Waste Management--Continued

___________________________________________________________________________________________________

 | | |

 Map symbol | Application of | Application | Disposal of

 and soil name | manure and food- | of sewage sludge | wastewater

 | processing waste | | by irrigation _____________________________________________________________________________

 | Rating class and |Value| Rating class and |Value| Rating class and |Value

 | limiting features | | limiting features | | limiting features | ___________________________________________________________________________________________________

 | | | | | |

1226: | | | | | |

 Lawler, 24 to 40 | | | | | |

 inches to sand and | | | | | |

 gravel-------------|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 |

 | (Nov-Jul) | | (Nov-Jul) | | (Nov-Jul) |

 | | | | | |

1285G: | | | | | |

 Burkhardt-----------|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

 | Droughty |0.72 | Droughty |0.72 | sprinkler |

 | Too acid |0.18 | Too acid |0.67 | application |

 | | | | | Too steep for |1.00

 | | | | | surface |

 | | | | | application |

 | | | | | Droughty |0.72

 | | | | | Too acid |0.67

 | | | | | |

 Bassett-------------|Not rated | |Very limited | |Very limited |

 | | | Slope |1.00 | Too steep for |1.00

 | | | Depth to |1.00 | sprinkler |

 | | | saturated zone | | application |

 | | | (Nov-Jul) | | Too steep for |1.00

 | | | Too acid |0.07 | surface |

 | | | | | application |

 | | | | | Depth to |1.00

 | | | | | saturated zone |

 | | | | | (Nov-Jul) |

 | | | | | Too acid |0.07

 | | | | | |

 Chelsea-------------|Not rated | |Very limited | |Very limited |

 | | | Filtering |1.00 | Filtering |1.00

 | | | capacity | | capacity |

 | | | Slope |1.00 | Too steep for |1.00

 | | | Droughty |0.13 | sprinkler |

 | | | | | application |

 | | | | | Too steep for |1.00

 | | | | | surface |

 | | | | | application |

 | | | | | Droughty |0.13

 | | | | | |

1585: | | | | | |

 Spillville, | | | | | |

 frequently flooded |Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone | | saturated zone |

 | (Nov-Jul) | | (Nov-Jul) | | (Nov-Jul) |

 | Flooding |1.00 | Flooding |1.00 | Flooding |1.00

 | | | | | |

 Coland, frequently | | | | | |

 flooded------------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone | | saturated zone |

 | (Nov-Jul) | | (Nov-Jul) | | (Nov-Jul) |

 | Flooding |1.00 | Flooding |1.00 | Flooding |1.00

 | Leaching |0.70 | | | |

 | | | | | |
368 Soil Survey of

Table 17a.--Agricultural Waste Management--Continued

___________________________________________________________________________________________________

 | | |

 Map symbol | Application of | Application | Disposal of

 and soil name | manure and food- | of sewage sludge | wastewater

 | processing waste | | by irrigation _____________________________________________________________________________

 | Rating class and |Value| Rating class and |Value| Rating class and |Value

 | limiting features | | limiting features | | limiting features | ___________________________________________________________________________________________________

 | | | | | |

1585: | | | | | |

 Aquolls, ponded-----|Not rated | |Not rated | |Not rated |

 | | | | | |

1586: | | | | | |

 Sigglekov, | | | | | |

 frequently flooded |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 |

 | (Nov-Jul) | | (Nov-Jul) | | (Nov-Jul) |

 | Flooding |1.00 | Flooding |1.00 | Flooding |1.00

 | Droughty |0.96 | Droughty |0.96 | Droughty |0.96

 | Leaching |0.45 | Too acid |0.14 | Too acid |0.14

 | | | | | |

 Fluvaquents, | | | | | |

 frequently flooded |Not rated | |Not rated | |Not rated |

 | | | | | |

 Aquents, ponded-----|Not rated | |Not rated | |Not rated |

 | | | | | |

4000: | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4007: | | | | | |

 Wiota---------------|Very limited | |Very limited | |Very limited |

 | Filtering |1.00 | Filtering |1.00 | Filtering |1.00

 | capacity | | capacity | | capacity |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4041: | | | | | |

 Sparta--------------|Very limited | |Very limited | |Very limited |

 | Filtering |1.00 | Filtering |1.00 | Filtering |1.00

 | capacity | | capacity | | capacity |

 | Leaching |0.45 | Droughty |0.32 | Droughty |0.32

 | Droughty |0.32 | Too acid |0.07 | Too acid |0.07

 | Too acid |0.02 | | | |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4041B: | | | | | |

 Sparta--------------|Very limited | |Very limited | |Very limited |

 | Filtering |1.00 | Filtering |1.00 | Filtering |1.00

 | capacity | | capacity | | capacity |

 | Leaching |0.45 | Droughty |0.32 | Droughty |0.32

 | Droughty |0.32 | Too acid |0.07 | Too steep for |0.08

 | Too acid |0.02 | | | surface |

 | | | | | application |

 | | | | | Too acid |0.07

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |
Black Hawk County, Iowa 369

Table 17a.--Agricultural Waste Management--Continued

___________________________________________________________________________________________________

 | | |

 Map symbol | Application of | Application | Disposal of

 and soil name | manure and food- | of sewage sludge | wastewater

 | processing waste | | by irrigation _____________________________________________________________________________

 | Rating class and |Value| Rating class and |Value| Rating class and |Value

 | limiting features | | limiting features | | limiting features | ___________________________________________________________________________________________________

 | | | | | |

4041C: | | | | | |

 Sparta--------------|Very limited | |Very limited | |Very limited |

 | Filtering |1.00 | Filtering |1.00 | Filtering |1.00

 | capacity | | capacity | | capacity |

 | Leaching |0.45 | Droughty |0.36 | Too steep for |0.92

 | Droughty |0.36 | Too acid |0.07 | surface |

 | Too acid |0.02 | | | application |

 | | | | | Droughty |0.36

 | | | | | Too acid |0.07

 | | | | | Too steep for |0.02

 | | | | | sprinkler |

 | | | | | application |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4041D: | | | | | |

 Sparta--------------|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 | Droughty |0.38 | surface |

 | Droughty |0.38 | Too acid |0.07 | application |

 | Too acid |0.02 | | | Too steep for |0.78

 | | | | | sprinkler |

 | | | | | application |

 | | | | | Droughty |0.38

 | | | | | Too acid |0.07

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4063B: | | | | | |

 Chelsea-------------|Very limited | |Very limited | |Very limited |

 | Filtering |1.00 | Filtering |1.00 | Filtering |1.00

 | capacity | | capacity | | capacity |

 | Leaching |0.45 | Droughty |0.06 | Too steep for |0.08

 | Droughty |0.06 | | | surface |

 | | | | | application |

 | | | | | Droughty |0.06

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4063C: | | | | | |

 Chelsea-------------|Very limited | |Very limited | |Very limited |

 | Filtering |1.00 | Filtering |1.00 | Filtering |1.00

 | capacity | | capacity | | capacity |

 | Leaching |0.45 | Droughty |0.06 | Too steep for |0.92

 | Droughty |0.06 | | | surface |

 | | | | | application |

 | | | | | Droughty |0.06

 | | | | | Too steep for |0.02

 | | | | | sprinkler |

 | | | | | application |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |
370 Soil Survey of

Table 17a.--Agricultural Waste Management--Continued

___________________________________________________________________________________________________

 | | |

 Map symbol | Application of | Application | Disposal of

 and soil name | manure and food- | of sewage sludge | wastewater

 | processing waste | | by irrigation _____________________________________________________________________________

 | Rating class and |Value| Rating class and |Value| Rating class and |Value

 | limiting features | | limiting features | | limiting features | ___________________________________________________________________________________________________

 | | | | | |

4063D: | | | | | |

 Chelsea-------------|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 | Droughty |0.06 | surface |

 | Droughty |0.06 | | | application |

 | | | | | Too steep for |0.78

 | | | | | sprinkler |

 | | | | | application |

 | | | | | Droughty |0.06

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4083B: | | | | | |

 Kenyon--------------|Not limited | |Not limited | |Somewhat limited |

 | | | | | Too steep for |0.08

 | | | | | surface |

 | | | | | application |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4083C: | | | | | |

 Kenyon--------------|Not limited | |Not limited | |Somewhat limited |

 | | | | | Too steep for |0.92

 | | | | | surface |

 | | | | | application |

 | | | | | Too steep for |0.02

 | | | | | sprinkler |

 | | | | | application |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4083D: | | | | | |

 Kenyon--------------|Somewhat limited | |Somewhat limited | |Very limited |

 | Slope |0.63 | Slope |0.63 | Too steep for |1.00

 | | | | | surface |

 | | | | | application |

 | | | | | Too steep for |0.78

 | | | | | sprinkler |

 | | | | | application |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4084: | | | | | |

 Clyde---------------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone | | saturated zone |

 | (Nov-Jul) | | (Nov-Jul) | | (Nov-Jul) |

 | Leaching |0.70 | | | |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4088: | | | | | |

 Nevin---------------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone | | saturated zone |

 | (Nov-Jul) | | (Nov-Jul) | | (Nov-Jul) |

 | | | Flooding |0.40 | |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |
Black Hawk County, Iowa 371

Table 17a.--Agricultural Waste Management--Continued

___________________________________________________________________________________________________

 | | |

 Map symbol | Application of | Application | Disposal of

 and soil name | manure and food- | of sewage sludge | wastewater

 | processing waste | | by irrigation _____________________________________________________________________________

 | Rating class and |Value| Rating class and |Value| Rating class and |Value

 | limiting features | | limiting features | | limiting features | ___________________________________________________________________________________________________

 | | | | | |

4133: | | | | | |

 Colo, occasionally | | | | | |

 flooded------------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone | | saturated zone |

 | (Nov-Jul) | | (Nov-Jul) | | (Nov-Jul) |

 | Leaching |0.70 | Flooding |1.00 | Flooding |0.60

 | Flooding |0.60 | | | |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4135: | | | | | |

 Coland, occasionally| | | | | |

 flooded------------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone | | saturated zone |

 | (Nov-Jul) | | (Nov-Jul) | | (Nov-Jul) |

 | Leaching |0.70 | Flooding |1.00 | Flooding |0.60

 | Flooding |0.60 | | | |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4152: | | | | | |

 Marshan, 24 to 40 | | | | | |

 inches to sand and | | | | | |

 gravel-------------|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 |

 | (Nov-Jul) | | (Nov-Jul) | | (Nov-Jul) |

 | Leaching |0.70 | | | |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4159: | | | | | |

 Finchford-----------|Very limited | |Very limited | |Very limited |

 | Filtering |1.00 | Filtering |1.00 | Filtering |1.00

 | capacity | | capacity | | capacity |

 | Droughty |0.71 | Droughty |0.71 | Droughty |0.71

 | Leaching |0.45 | | | |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4159C: | | | | | |

 Finchford-----------|Very limited | |Very limited | |Very limited |

 | Filtering |1.00 | Filtering |1.00 | Filtering |1.00

 | capacity | | capacity | | capacity |

 | Droughty |0.83 | Droughty |0.83 | Droughty |0.83

 | Leaching |0.45 | | | Too steep for |0.68

 | | | | | surface |

 | | | | | application |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |
372 Soil Survey of

Table 17a.--Agricultural Waste Management--Continued

___________________________________________________________________________________________________

 | | |

 Map symbol | Application of | Application | Disposal of

 and soil name | manure and food- | of sewage sludge | wastewater

 | processing waste | | by irrigation _____________________________________________________________________________

 | Rating class and |Value| Rating class and |Value| Rating class and |Value

 | limiting features | | limiting features | | limiting features | ___________________________________________________________________________________________________

 | | | | | |

4171B: | | | | | |

 Bassett-------------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone | | saturated zone |

 | (Nov-Jul) | | (Nov-Jul) | | (Nov-Jul) |

 | Too acid |0.02 | Too acid |0.07 | Too steep for |0.08

 | | | | | surface |

 | | | | | application |

 | | | | | Too acid |0.07

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4171D: | | | | | |

 Bassett-------------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00 | Too steep for |1.00

 | saturated zone | | saturated zone | | surface |

 | (Nov-Jul) | | (Nov-Jul) | | application |

 | Slope |0.63 | Slope |0.63 | Depth to |1.00

 | Too acid |0.02 | Too acid |0.07 | saturated zone |

 | | | | | (Nov-Jul) |

 | | | | | Too steep for |0.78

 | | | | | sprinkler |

 | | | | | application |

 | | | | | Too acid |0.07

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4175: | | | | | |

 Dickinson-----------|Very limited | |Very limited | |Very limited |

 | Filtering |1.00 | Filtering |1.00 | Filtering |1.00

 | capacity | | capacity | | capacity |

 | Droughty |0.05 | Droughty |0.05 | Droughty |0.05

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4175B: | | | | | |

 Dickinson-----------|Very limited | |Very limited | |Very limited |

 | Filtering |1.00 | Filtering |1.00 | Filtering |1.00

 | capacity | | capacity | | capacity |

 | Droughty |0.05 | Droughty |0.05 | Too steep for |0.08

 | | | | | surface |

 | | | | | application |

 | | | | | Droughty |0.05

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4177: | | | | | |

 Saude---------------|Very limited | |Very limited | |Very limited |

 | Filtering |1.00 | Filtering |1.00 | Filtering |1.00

 | capacity | | capacity | | capacity |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4177B: | | | | | |

 Saude---------------|Very limited | |Very limited | |Very limited |

 | Filtering |1.00 | Filtering |1.00 | Filtering |1.00

 | capacity | | capacity | | capacity |

 | | | | | Too steep for |0.08

 | | | | | surface |

 | | | | | application |

 | | | | | |
Black Hawk County, Iowa 373

Table 17a.--Agricultural Waste Management--Continued

___________________________________________________________________________________________________

 | | |

 Map symbol | Application of | Application | Disposal of

 and soil name | manure and food- | of sewage sludge | wastewater

 | processing waste | | by irrigation _____________________________________________________________________________

 | Rating class and |Value| Rating class and |Value| Rating class and |Value

 | limiting features | | limiting features | | limiting features | ___________________________________________________________________________________________________

 | | | | | |

4177B: | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4178: | | | | | |

 Waukee--------------|Very limited | |Very limited | |Very limited |

 | Filtering |1.00 | Filtering |1.00 | Filtering |1.00

 | capacity | | capacity | | capacity |

 | Too acid |0.03 | Too acid |0.14 | Too acid |0.14

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4184: | | | | | |

 Klinger-------------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone | | saturated zone |

 | (Nov-Jul) | | (Nov-Jul) | | (Nov-Jul) |

 | Too acid |0.02 | Too acid |0.07 | Too acid |0.07

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4198B: | | | | | |

 Floyd---------------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone | | saturated zone |

 | (Nov-Jul) | | (Nov-Jul) | | (Nov-Jul) |

 | Filtering |0.01 | Filtering |0.01 | Filtering |0.01

 | capacity | | capacity | | capacity |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4226: | | | | | |

 Lawler, 24 to 40 | | | | | |

 inches to sand and | | | | | |

 gravel-------------|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 |

 | (Nov-Jul) | | (Nov-Jul) | | (Nov-Jul) |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4284: | | | | | |

 Flagler-------------|Very limited | |Very limited | |Very limited |

 | Filtering |1.00 | Filtering |1.00 | Filtering |1.00

 | capacity | | capacity | | capacity |

 | Droughty |0.13 | Droughty |0.13 | Droughty |0.13

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4284B: | | | | | |

 Flagler-------------|Very limited | |Very limited | |Very limited |

 | Filtering |1.00 | Filtering |1.00 | Filtering |1.00

 | capacity | | capacity | | capacity |

 | Droughty |0.13 | Droughty |0.13 | Droughty |0.13

 | | | | | Too steep for |0.08

 | | | | | surface |

 | | | | | application |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |
374 Soil Survey of

Table 17a.--Agricultural Waste Management--Continued

___________________________________________________________________________________________________

 | | |

 Map symbol | Application of | Application | Disposal of

 and soil name | manure and food- | of sewage sludge | wastewater

 | processing waste | | by irrigation _____________________________________________________________________________

 | Rating class and |Value| Rating class and |Value| Rating class and |Value

 | limiting features | | limiting features | | limiting features | ___________________________________________________________________________________________________

 | | | | | |

4377B: | | | | | |

 Dinsdale------------|Somewhat limited | |Somewhat limited | |Somewhat limited |

 | Too acid |0.02 | Too acid |0.07 | Too steep for |0.08

 | | | | | surface |

 | | | | | application |

 | | | | | Too acid |0.07

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4377C: | | | | | |

 Dinsdale------------|Somewhat limited | |Somewhat limited | |Somewhat limited |

 | Too acid |0.02 | Too acid |0.07 | Too steep for |0.92

 | | | | | surface |

 | | | | | application |

 | | | | | Too acid |0.07

 | | | | | Too steep for |0.02

 | | | | | sprinkler |

 | | | | | application |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4382: | | | | | |

 Maxfield------------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone | | saturated zone |

 | (Nov-Jul) | | (Nov-Jul) | | (Nov-Jul) |

 | Leaching |0.70 | | | |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4391B: | | | | | |

 Clyde---------------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone | | saturated zone |

 | (Nov-Jul) | | (Nov-Jul) | | (Nov-Jul) |

 | Leaching |0.70 | | | |

 | | | | | |

 Floyd---------------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone | | saturated zone |

 | (Nov-Jul) | | (Nov-Jul) | | (Nov-Jul) |

 | Filtering |0.01 | Filtering |0.01 | Filtering |0.01

 | capacity | | capacity | | capacity |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4398: | | | | | |

 Tripoli-------------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone | | saturated zone |

 | (Nov-Jul) | | (Nov-Jul) | | (Nov-Jul) |

 | Leaching |0.70 | | | |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4399: | | | | | |

 Readlyn-------------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone | | saturated zone |

 | (Nov-Jul) | | (Nov-Jul) | | (Nov-Jul) |

 | Too acid |0.02 | Too acid |0.07 | Too acid |0.07

 | | | | | |
Black Hawk County, Iowa 375

Table 17a.--Agricultural Waste Management--Continued

___________________________________________________________________________________________________

 | | |

 Map symbol | Application of | Application | Disposal of

 and soil name | manure and food- | of sewage sludge | wastewater

 | processing waste | | by irrigation _____________________________________________________________________________

 | Rating class and |Value| Rating class and |Value| Rating class and |Value

 | limiting features | | limiting features | | limiting features | ___________________________________________________________________________________________________

 | | | | | |

4399: | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4408B: | | | | | |

 Olin----------------|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 |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4408C: | | | | | |

 Olin----------------|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 |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4426B: | | | | | |

 Aredale-------------|Somewhat limited | |Somewhat limited | |Somewhat limited |

 | Restricted |0.30 | Restricted |0.22 | Restricted |0.22

 | permeability | | permeability | | permeability |

 | Filtering |0.01 | Filtering |0.01 | Too steep for |0.08

 | capacity | | capacity | | surface |

 | | | | | application |

 | | | | | Filtering |0.01

 | | | | | capacity |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4426C: | | | | | |

 Aredale-------------|Somewhat limited | |Somewhat limited | |Somewhat limited |

 | Restricted |0.30 | Restricted |0.22 | Too steep for |0.92

 | permeability | | permeability | | surface |

 | Filtering |0.01 | Filtering |0.01 | application |

 | capacity | | capacity | | Restricted |0.22

 | | | | | permeability |

 | | | | | Too steep for |0.02

 | | | | | sprinkler |

 | | | | | application |

 | | | | | Filtering |0.01

 | | | | | capacity |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4585: | | | | | |

 Spillville, | | | | | |

 occasionally | | | | | |

 flooded------------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone | | saturated zone |

 | (Nov-Jul) | | (Nov-Jul) | | (Nov-Jul) |

 | Flooding |0.60 | Flooding |1.00 | Flooding |0.60

 | | | | | |
376 Soil Survey of

Table 17a.--Agricultural Waste Management--Continued

___________________________________________________________________________________________________

 | | |

 Map symbol | Application of | Application | Disposal of

 and soil name | manure and food- | of sewage sludge | wastewater

 | processing waste | | by irrigation _____________________________________________________________________________

 | Rating class and |Value| Rating class and |Value| Rating class and |Value

 | limiting features | | limiting features | | limiting features | ___________________________________________________________________________________________________

 | | | | | |

4585: | | | | | |

 Coland, occasionally| | | | | |

 flooded------------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone | | saturated zone |

 | (Nov-Jul) | | (Nov-Jul) | | (Nov-Jul) |

 | Leaching |0.70 | Flooding |1.00 | Flooding |0.60

 | Flooding |0.60 | | | |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4761: | | | | | |

 Franklin------------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone | | saturated zone |

 | (Nov-Jul) | | (Nov-Jul) | | (Nov-Jul) |

 | Too acid |0.08 | Too acid |0.31 | Too acid |0.31

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4771B: | | | | | |

 Waubeek-------------|Not limited | |Not limited | |Somewhat limited |

 | | | | | Too steep for |0.08

 | | | | | surface |

 | | | | | application |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4771D: | | | | | |

 Waubeek-------------|Somewhat limited | |Somewhat limited | |Very limited |

 | Slope |0.04 | Slope |0.04 | Too steep for |1.00

 | | | | | surface |

 | | | | | application |

 | | | | | Too steep for |0.22

 | | | | | sprinkler |

 | | | | | application |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4798: | | | | | |

 Protivin------------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone | | saturated zone |

 | (Nov-Jul) | | (Nov-Jul) | | (Nov-Jul) |

 | Restricted |0.30 | Restricted |0.22 | Restricted |0.22

 | permeability | | permeability | | permeability |

 | Too acid |0.02 | Too acid |0.07 | Too acid |0.07

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4911B: | | | | | |

 Colo----------------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone | | saturated zone |

 | (Nov-Jul) | | (Nov-Jul) | | (Nov-Jul) |

 | Flooding |1.00 | Flooding |1.00 | Flooding |1.00

 | Leaching |0.70 | | | |

 | | | | | |
Black Hawk County, Iowa 377

Table 17a.--Agricultural Waste Management--Continued

___________________________________________________________________________________________________

 | | |

 Map symbol | Application of | Application | Disposal of

 and soil name | manure and food- | of sewage sludge | wastewater

 | processing waste | | by irrigation _____________________________________________________________________________

 | Rating class and |Value| Rating class and |Value| Rating class and |Value

 | limiting features | | limiting features | | limiting features | ___________________________________________________________________________________________________

 | | | | | |

4911B: | | | | | |

 Ely-----------------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone | | saturated zone |

 | (Nov-Jul) | | (Nov-Jul) | | (Nov-Jul) |

 | | | | | Too steep for |0.08

 | | | | | surface |

 | | | | | application |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4933: | | | | | |

 Sawmill, | | | | | |

 occasionally | | | | | |

 flooded------------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone | | saturated zone |

 | (Nov-Jul) | | (Nov-Jul) | | (Nov-Jul) |

 | Leaching |0.70 | Flooding |1.00 | Flooding |0.60

 | Flooding |0.60 | | | |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4946: | | | | | |

 Orthents, loamy-----|Not rated | |Not rated | |Not rated |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

5010: | | | | | |

 Pits, sand and | | | | | |

 gravel-------------|Not rated | |Not rated | |Not rated |

 | | | | | |

5030: | | | | | |

 Pits, limestone | | | | | |

 quarries-----------|Not rated | |Not rated | |Not rated |

 | | | | | |

5040: | | | | | |

 Orthents, loamy-----|Not rated | |Not rated | |Not rated |

 | | | | | |

5053: | | | | | |

 Psammaquents, | | | | | |

 frequently flooded |Not rated | |Not rated | |Not rated |

 | | | | | |

5080: | | | | | |

 Orthents, sanitary | | | | | |

 landfill-----------|Not rated | |Not rated | |Not rated |

 | | | | | |

AW: | | | | | |

 Animal waste--------|Not rated | |Not rated | |Not rated |

 | | | | | |

SL: | | | | | |

 Sewage lagoon-------|Not rated | |Not rated | |Not rated |

 | | | | | |

W: | | | | | |

 Water---------------|Not rated | |Not rated | |Not rated |

 | | | | | | ___________________________________________________________________________________________________
378 Soil Survey of

Table 17b.--Agricultural Waste 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. "Not rated" indicates that data are not

 available or that no rating is applicable. See text for further explanation of ratings in

 this table)

___________________________________________________________________________________________________

 | | |

 Map symbol | Overland flow | Rapid infiltration | Slow rate treatment

 and soil name | of wastewater | of wastewater | of wastewater

 | | | _____________________________________________________________________________

 | Rating class and |Value| Rating class and |Value| Rating class and |Value

 | limiting features | | limiting features | | limiting features | ___________________________________________________________________________________________________

 | | | | | |

7: | | | | | |

 Wiota---------------|Very limited | |Very limited | |Very limited |

 | Seepage |1.00 | Restricted |1.00 | Filtering |1.00

 | | | permeability | | capacity |

 | | | | | |

41: | | | | | |

 Sparta--------------|Very limited | |Somewhat limited | |Very limited |

 | Seepage |1.00 | Restricted |0.32 | Filtering |1.00

 | Too acid |0.07 | permeability | | capacity |

 | | | | | Too acid |0.07

 | | | | | |

41B: | | | | | |

 Sparta--------------|Very limited | |Somewhat limited | |Very limited |

 | Seepage |1.00 | Restricted |0.32 | Filtering |1.00

 | Too acid |0.07 | permeability | | capacity |

 | | | | | Too steep for |0.08

 | | | | | surface |

 | | | | | application |

 | | | | | Too acid |0.07

 | | | | | |

41C: | | | | | |

 Sparta--------------|Very limited | |Somewhat limited | |Very limited |

 | Seepage |1.00 | Slope |0.88 | Filtering |1.00

 | Too acid |0.07 | Restricted |0.32 | capacity |

 | Too steep for |0.06 | permeability | | Too steep for |0.92

 | surface | | | | surface |

 | application | | | | application |

 | | | | | Too acid |0.07

 | | | | | Too steep for |0.06

 | | | | | sprinkler |

 | | | | | application |

 | | | | | |

41D: | | | | | |

 Sparta--------------|Very limited | |Very limited | |Very limited |

 | Seepage |1.00 | Slope |1.00 | Filtering |1.00

 | Too steep for |1.00 | Restricted |0.32 | capacity |

 | surface | | permeability | | Too steep for |1.00

 | application | | | | surface |

 | Too acid |0.07 | | | application |

 | | | | | Too steep for |1.00

 | | | | | sprinkler |

 | | | | | application |

 | | | | | Too acid |0.07

 | | | | | |

63B: | | | | | |

 Chelsea-------------|Very limited | |Not limited | |Very limited |

 | Seepage |1.00 | | | Filtering |1.00

 | | | | | capacity |

 | | | | | Too steep for |0.08

 | | | | | surface |

 | | | | | application |

 | | | | | |
Black Hawk County, Iowa 379

Table 17b.--Agricultural Waste Management--Continued

___________________________________________________________________________________________________

 | | |

 Map symbol | Overland flow | Rapid infiltration | Slow rate treatment

 and soil name | of wastewater | of wastewater | of wastewater

 | | | _____________________________________________________________________________

 | Rating class and |Value| Rating class and |Value| Rating class and |Value

 | limiting features | | limiting features | | limiting features | ___________________________________________________________________________________________________

 | | | | | |

63C: | | | | | |

 Chelsea-------------|Very limited | |Somewhat limited | |Very limited |

 | Seepage |1.00 | Slope |0.88 | Filtering |1.00

 | Too steep for |0.06 | | | capacity |

 | surface | | | | Too steep for |0.92

 | application | | | | surface |

 | | | | | application |

 | | | | | Too steep for |0.06

 | | | | | sprinkler |

 | | | | | application |

 | | | | | |

63D: | | | | | |

 Chelsea-------------|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 |

 | | | | | |

83B: | | | | | |

 Kenyon--------------|Very limited | |Very limited | |Somewhat limited |

 | Seepage |1.00 | Depth to |1.00 | Too steep for |0.08

 | | | saturated zone | | surface |

 | | | Restricted |1.00 | application |

 | | | permeability | | |

 | | | | | |

83C: | | | | | |

 Kenyon--------------|Very limited | |Very limited | |Somewhat limited |

 | Seepage |1.00 | Depth to |1.00 | Too steep for |0.92

 | Too steep for |0.06 | saturated zone | | surface |

 | surface | | Restricted |1.00 | application |

 | application | | permeability | | Too steep for |0.06

 | | | Slope |0.88 | sprinkler |

 | | | | | application |

 | | | | | |

83C2: | | | | | |

 Kenyon, moderately | | | | | |

 eroded-------------|Very limited | |Very limited | |Somewhat limited |

 | Seepage |1.00 | Depth to |1.00 | Too steep for |0.92

 | Too steep for |0.06 | saturated zone | | surface |

 | surface | | Restricted |1.00 | application |

 | application | | permeability | | Too steep for |0.06

 | | | Slope |0.88 | sprinkler |

 | | | | | application |

 | | | | | |

83D2: | | | | | |

 Kenyon, moderately | | | | | |

 eroded-------------|Very limited | |Very limited | |Very limited |

 | Seepage |1.00 | Slope |1.00 | Too steep for |1.00

 | Too steep for |1.00 | Depth to |1.00 | surface |

 | surface | | saturated zone | | application |

 | application | | Restricted |1.00 | Too steep for |1.00

 | | | permeability | | sprinkler |

 | | | | | application |

 | | | | | |
380 Soil Survey of

Table 17b.--Agricultural Waste Management--Continued

___________________________________________________________________________________________________

 | | |

 Map symbol | Overland flow | Rapid infiltration | Slow rate treatment

 and soil name | of wastewater | of wastewater | of wastewater

 | | | _____________________________________________________________________________

 | Rating class and |Value| Rating class and |Value| Rating class and |Value

 | limiting features | | limiting features | | limiting features | ___________________________________________________________________________________________________

 | | | | | |

84: | | | | | |

 Clyde---------------|Very limited | |Very limited | |Very limited |

 | Seepage |1.00 | Depth to |1.00 | Depth to |1.00

 | Depth to |1.00 | saturated zone | | saturated zone |

 | saturated zone | | Restricted |1.00 | |

 | | | permeability | | |

 | | | | | |

88: | | | | | |

 Nevin---------------|Very limited | |Very limited | |Very limited |

 | Seepage |1.00 | Depth to |1.00 | Depth to |1.00

 | Depth to |1.00 | saturated zone | | saturated zone |

 | saturated zone | | Restricted |1.00 | |

 | Flooding |0.40 | permeability | | |

 | | | | | |

133: | | | | | |

 Colo, occasionally | | | | | |

 flooded------------|Very limited | |Very limited | |Very limited |

 | Flooding |1.00 | Depth to |1.00 | Depth to |1.00

 | Seepage |1.00 | saturated zone | | saturated zone |

 | Depth to |1.00 | Restricted |1.00 | Flooding |0.60

 | saturated zone | | permeability | | |

 | | | Flooding |0.60 | |

 | | | | | |

135: | | | | | |

 Coland, occasionally| | | | | |

 flooded------------|Very limited | |Very limited | |Very limited |

 | Flooding |1.00 | Depth to |1.00 | Depth to |1.00

 | Seepage |1.00 | saturated zone | | saturated zone |

 | Depth to |1.00 | Restricted |1.00 | Flooding |0.60

 | saturated zone | | permeability | | |

 | | | Flooding |0.60 | |

 | | | | | |

159: | | | | | |

 Finchford-----------|Very limited | |Not limited | |Very limited |

 | Seepage |1.00 | | | Filtering |1.00

 | | | | | capacity |

 | | | | | |

159C: | | | | | |

 Finchford-----------|Very limited | |Somewhat limited | |Very limited |

 | Seepage |1.00 | Slope |0.50 | Filtering |1.00

 | | | | | capacity |

 | | | | | Too steep for |0.68

 | | | | | surface |

 | | | | | application |

 | | | | | |

171B: | | | | | |

 Bassett-------------|Very limited | |Very limited | |Very limited |

 | Seepage |1.00 | Depth to |1.00 | Depth to |1.00

 | Depth to |1.00 | saturated zone | | saturated zone |

 | saturated zone | | Restricted |1.00 | Too steep for |0.08

 | Too acid |0.07 | permeability | | surface |

 | | | | | application |

 | | | | | Too acid |0.07

 | | | | | |

175: | | | | | |

 Dickinson-----------|Very limited | |Somewhat limited | |Very limited |

 | Seepage |1.00 | Restricted |0.32 | Filtering |1.00

 | | | permeability | | capacity |

 | | | | | |
Black Hawk County, Iowa 381

Table 17b.--Agricultural Waste Management--Continued

___________________________________________________________________________________________________

 | | |

 Map symbol | Overland flow | Rapid infiltration | Slow rate treatment

 and soil name | of wastewater | of wastewater | of wastewater

 | | | _____________________________________________________________________________

 | Rating class and |Value| Rating class and |Value| Rating class and |Value

 | limiting features | | limiting features | | limiting features | ___________________________________________________________________________________________________

 | | | | | |

175B: | | | | | |

 Dickinson-----------|Very limited | |Somewhat limited | |Very limited |

 | Seepage |1.00 | Restricted |0.32 | Filtering |1.00

 | | | permeability | | capacity |

 | | | | | Too steep for |0.08

 | | | | | surface |

 | | | | | application |

 | | | | | |

177: | | | | | |

 Saude---------------|Very limited | |Very limited | |Very limited |

 | Seepage |1.00 | Restricted |1.00 | Filtering |1.00

 | | | permeability | | capacity |

 | | | | | |

177B: | | | | | |

 Saude---------------|Very limited | |Very limited | |Very limited |

 | Seepage |1.00 | Restricted |1.00 | Filtering |1.00

 | | | permeability | | capacity |

 | | | | | Too steep for |0.08

 | | | | | surface |

 | | | | | application |

 | | | | | |

178: | | | | | |

 Waukee--------------|Very limited | |Very limited | |Very limited |

 | Seepage |1.00 | Restricted |1.00 | Filtering |1.00

 | Too acid |0.14 | permeability | | capacity |

 | | | | | Too acid |0.14

 | | | | | |

178B: | | | | | |

 Waukee--------------|Very limited | |Very limited | |Very limited |

 | Seepage |1.00 | Restricted |1.00 | Filtering |1.00

 | Too acid |0.14 | permeability | | capacity |

 | | | | | Too acid |0.14

 | | | | | Too steep for |0.08

 | | | | | surface |

 | | | | | application |

 | | | | | |

184: | | | | | |

 Klinger-------------|Very limited | |Very limited | |Very limited |

 | Seepage |1.00 | Depth to |1.00 | Depth to |1.00

 | Depth to |1.00 | saturated zone | | saturated zone |

 | saturated zone | | Restricted |1.00 | Too acid |0.07

 | Too acid |0.07 | permeability | | |

 | | | | | |

198B: | | | | | |

 Floyd---------------|Very limited | |Very limited | |Very limited |

 | Seepage |1.00 | Depth to |1.00 | Depth to |1.00

 | Depth to |1.00 | saturated zone | | saturated zone |

 | saturated zone | | Restricted |1.00 | Filtering |0.01

 | | | permeability | | capacity |

 | | | | | |

213B: | | | | | |

 Rockton, 30 to 40 | | | | | |

 inches to limestone|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 acid |0.42

 | Too acid |0.42 | permeability | | Too steep for |0.08

 | | | | | surface |

 | | | | | application |

 | | | | | |
382 Soil Survey of

Table 17b.--Agricultural Waste Management--Continued

___________________________________________________________________________________________________

 | | |

 Map symbol | Overland flow | Rapid infiltration | Slow rate treatment

 and soil name | of wastewater | of wastewater | of wastewater

 | | | _____________________________________________________________________________

 | Rating class and |Value| Rating class and |Value| Rating class and |Value

 | limiting features | | limiting features | | limiting features | ___________________________________________________________________________________________________

 | | | | | |

221: | | | | | |

 Klossner------------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone | | saturated zone |

 | Seepage |1.00 | Restricted |1.00 | Too acid |0.07

 | Too acid |0.07 | permeability | | |

 | | | | | |

284: | | | | | |

 Flagler-------------|Very limited | |Somewhat limited | |Very limited |

 | Seepage |1.00 | Restricted |0.32 | Filtering |1.00

 | | | permeability | | capacity |

 | | | | | |

284B: | | | | | |

 Flagler-------------|Very limited | |Somewhat limited | |Very limited |

 | Seepage |1.00 | Restricted |0.32 | Filtering |1.00

 | | | permeability | | capacity |

 | | | | | Too steep for |0.08

 | | | | | surface |

 | | | | | application |

 | | | | | |

290: | | | | | |

 Dells---------------|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

 | | | permeability | | saturated zone |

 | | | | | |

354: | | | | | |

 Aquolls, ponded-----|Not rated | |Not rated | |Not rated |

 | | | | | |

377B: | | | | | |

 Dinsdale------------|Very limited | |Very limited | |Somewhat limited |

 | Seepage |1.00 | Depth to |1.00 | Too steep for |0.08

 | Too acid |0.07 | saturated zone | | surface |

 | | | Restricted |1.00 | application |

 | | | permeability | | Too acid |0.07

 | | | | | |

377C: | | | | | |

 Dinsdale------------|Very limited | |Very limited | |Somewhat limited |

 | Seepage |1.00 | Depth to |1.00 | Too steep for |0.92

 | Too acid |0.07 | saturated zone | | surface |

 | Too steep for |0.06 | Restricted |1.00 | application |

 | surface | | permeability | | Too acid |0.07

 | application | | Slope |0.88 | Too steep for |0.06

 | | | | | sprinkler |

 | | | | | application |

 | | | | | |

377C2: | | | | | |

 Dinsdale, moderately| | | | | |

 eroded-------------|Very limited | |Very limited | |Somewhat limited |

 | Seepage |1.00 | Depth to |1.00 | Too steep for |0.92

 | Too acid |0.07 | saturated zone | | surface |

 | Too steep for |0.06 | Restricted |1.00 | application |

 | surface | | permeability | | Too acid |0.07

 | application | | Slope |0.88 | Too steep for |0.06

 | | | | | sprinkler |

 | | | | | application |

 | | | | | |
Black Hawk County, Iowa 383

Table 17b.--Agricultural Waste Management--Continued

___________________________________________________________________________________________________

 | | |

 Map symbol | Overland flow | Rapid infiltration | Slow rate treatment

 and soil name | of wastewater | of wastewater | of wastewater

 | | | _____________________________________________________________________________

 | Rating class and |Value| Rating class and |Value| Rating class and |Value

 | limiting features | | limiting features | | limiting features | ___________________________________________________________________________________________________

 | | | | | |

382: | | | | | |

 Maxfield------------|Very limited | |Very limited | |Very limited |

 | Seepage |1.00 | Depth to |1.00 | Depth to |1.00

 | Depth to |1.00 | saturated zone | | saturated zone |

 | saturated zone | | Restricted |1.00 | |

 | | | permeability | | |

 | | | | | |

391B: | | | | | |

 Clyde---------------|Very limited | |Very limited | |Very limited |

 | Seepage |1.00 | Depth to |1.00 | Depth to |1.00

 | Depth to |1.00 | saturated zone | | saturated zone |

 | saturated zone | | Restricted |1.00 | |

 | | | permeability | | |

 | | | | | |

 Floyd---------------|Very limited | |Very limited | |Very limited |

 | Seepage |1.00 | Depth to |1.00 | Depth to |1.00

 | Depth to |1.00 | saturated zone | | saturated zone |

 | saturated zone | | Restricted |1.00 | Filtering |0.01

 | | | permeability | | capacity |

 | | | | | |

395B: | | | | | |

 Marquis-------------|Very limited | |Very limited | |Very limited |

 | Seepage |1.00 | Depth to |1.00 | Depth to |1.00

 | Depth to |1.00 | saturated zone | | saturated zone |

 | saturated zone | | Restricted |1.00 | Too steep for |0.08

 | | | permeability | | surface |

 | | | | | application |

 | | | | | |

398: | | | | | |

 Tripoli-------------|Very limited | |Very limited | |Very limited |

 | Seepage |1.00 | Depth to |1.00 | Depth to |1.00

 | Depth to |1.00 | saturated zone | | saturated zone |

 | saturated zone | | Restricted |1.00 | |

 | | | permeability | | |

 | | | | | |

399: | | | | | |

 Readlyn-------------|Very limited | |Very limited | |Very limited |

 | Seepage |1.00 | Depth to |1.00 | Depth to |1.00

 | Depth to |1.00 | saturated zone | | saturated zone |

 | saturated zone | | Restricted |1.00 | Too acid |0.07

 | Too acid |0.07 | permeability | | |

 | | | | | |

408B: | | | | | |

 Olin----------------|Very limited | |Very limited | |Somewhat limited |

 | Seepage |1.00 | Restricted |1.00 | Too steep for |0.08

 | | | permeability | | surface |

 | | | | | application |

 | | | | | Filtering |0.01

 | | | | | capacity |

 | | | | | |

408C: | | | | | |

 Olin----------------|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 |

 | | | | | Filtering |0.01

 | | | | | capacity |

 | | | | | |
384 Soil Survey of

Table 17b.--Agricultural Waste Management--Continued

___________________________________________________________________________________________________

 | | |

 Map symbol | Overland flow | Rapid infiltration | Slow rate treatment

 and soil name | of wastewater | of wastewater | of wastewater

 | | | _____________________________________________________________________________

 | Rating class and |Value| Rating class and |Value| Rating class and |Value

 | limiting features | | limiting features | | limiting features | ___________________________________________________________________________________________________

 | | | | | |

412C: | | | | | |

 Emeline-------------|Very limited | |Very limited | |Very limited |

 | Seepage |1.00 | Depth to bedrock |1.00 | Depth to bedrock |1.00

 | Depth to bedrock |1.00 | Slope |0.50 | Too steep for |0.68

 | | | | | surface |

 | | | | | application |

 | | | | | |

426B: | | | | | |

 Aredale-------------|Very limited | |Very limited | |Somewhat limited |

 | Seepage |1.00 | Restricted |1.00 | Restricted |0.15

 | | | permeability | | permeability |

 | | | | | Too steep for |0.08

 | | | | | surface |

 | | | | | application |

 | | | | | Filtering |0.01

 | | | | | capacity |

 | | | | | |

426C: | | | | | |

 Aredale-------------|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 | | | | Restricted |0.15

 | | | | | permeability |

 | | | | | Too steep for |0.06

 | | | | | sprinkler |

 | | | | | application |

 | | | | | Filtering |0.01

 | | | | | capacity |

 | | | | | |

426C2: | | | | | |

 Aredale, moderately | | | | | |

 eroded-------------|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 |0.08 | application |

 | application | | | | Restricted |0.15

 | | | | | permeability |

 | | | | | Too steep for |0.06

 | | | | | sprinkler |

 | | | | | application |

 | | | | | Filtering |0.01

 | | | | | capacity |

 | | | | | |

468B: | | | | | |

 Dunkerton-----------|Very limited | |Very limited | |Very limited |

 | Seepage |1.00 | Restricted |1.00 | Depth to |1.00

 | Depth to |1.00 | permeability | | saturated zone |

 | saturated zone | | Depth to |1.00 | Restricted |0.15

 | | | saturated zone | | permeability |

 | | | | | Too steep for |0.08

 | | | | | surface |

 | | | | | application |

 | | | | | Filtering |0.01

 | | | | | capacity |

 | | | | | |
Black Hawk County, Iowa 385

Table 17b.--Agricultural Waste Management--Continued

___________________________________________________________________________________________________

 | | |

 Map symbol | Overland flow | Rapid infiltration | Slow rate treatment

 and soil name | of wastewater | of wastewater | of wastewater

 | | | _____________________________________________________________________________

 | Rating class and |Value| Rating class and |Value| Rating class and |Value

 | limiting features | | limiting features | | limiting features | ___________________________________________________________________________________________________

 | | | | | |

468C: | | | | | |

 Dunkerton-----------|Very limited | |Very limited | |Very limited |

 | Seepage |1.00 | Restricted |1.00 | Depth to |1.00

 | Depth to |1.00 | permeability | | saturated zone |

 | saturated zone | | Depth to |1.00 | Too steep for |0.92

 | Too steep for |0.06 | saturated zone | | surface |

 | surface | | Slope |0.88 | application |

 | application | | | | Restricted |0.15

 | | | | | permeability |

 | | | | | Too steep for |0.06

 | | | | | sprinkler |

 | | | | | application |

 | | | | | Filtering |0.01

 | | | | | capacity |

 | | | | | |

471: | | | | | |

 Oran----------------|Very limited | |Very limited | |Very limited |

 | Seepage |1.00 | Depth to |1.00 | Depth to |1.00

 | Depth to |1.00 | saturated zone | | saturated zone |

 | saturated zone | | Restricted |1.00 | Too acid |0.07

 | Too acid |0.07 | permeability | | |

 | | | | | |

485: | | | | | |

 Spillville, | | | | | |

 occasionally | | | | | |

 flooded------------|Very limited | |Very limited | |Very limited |

 | Flooding |1.00 | Depth to |1.00 | Depth to |1.00

 | Seepage |1.00 | saturated zone | | saturated zone |

 | Depth to |1.00 | Restricted |1.00 | Flooding |0.60

 | saturated zone | | permeability | | |

 | | | Flooding |0.60 | |

 | | | | | |

 | | | | | |

585: | | | | | |

 Spillville, | | | | | |

 occasionally | | | | | |

 flooded------------|Very limited | |Very limited | |Very limited |

 | Flooding |1.00 | Depth to |1.00 | Depth to |1.00

 | Seepage |1.00 | saturated zone | | saturated zone |

 | Depth to |1.00 | Restricted |1.00 | Flooding |0.60

 | saturated zone | | permeability | | |

 | | | Flooding |0.60 | |

 | | | | | |

 Coland, occasionally| | | | | |

 flooded------------|Very limited | |Very limited | |Very limited |

 | Flooding |1.00 | Depth to |1.00 | Depth to |1.00

 | Seepage |1.00 | saturated zone | | saturated zone |

 | Depth to |1.00 | Restricted |1.00 | Flooding |0.60

 | saturated zone | | permeability | | |

 | | | Flooding |0.60 | |

 | | | | | |

626: | | | | | |

 Hayfield, 24 to 40 | | | | | |

 inches to sand and | | | | | |

 gravel-------------|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

 | | | permeability | | saturated zone |

 | | | | | |
386 Soil Survey of

Table 17b.--Agricultural Waste Management--Continued

___________________________________________________________________________________________________

 | | |

 Map symbol | Overland flow | Rapid infiltration | Slow rate treatment

 and soil name | of wastewater | of wastewater | of wastewater

 | | | _____________________________________________________________________________

 | Rating class and |Value| Rating class and |Value| Rating class and |Value

 | limiting features | | limiting features | | limiting features | ___________________________________________________________________________________________________

 | | | | | |

761: | | | | | |

 Franklin------------|Very limited | |Very limited | |Very limited |

 | Seepage |1.00 | Depth to |1.00 | Depth to |1.00

 | Depth to |1.00 | saturated zone | | saturated zone |

 | saturated zone | | Restricted |1.00 | Too acid |0.31

 | Too acid |0.31 | permeability | | |

 | | | | | |

771B: | | | | | |

 Waubeek-------------|Very limited | |Very limited | |Somewhat limited |

 | Seepage |1.00 | Depth to |1.00 | Too steep for |0.08

 | | | saturated zone | | surface |

 | | | Restricted |1.00 | application |

 | | | permeability | | |

 | | | | | |

775B: | | | | | |

 Billett-------------|Very limited | |Somewhat limited | |Very limited |

 | Seepage |1.00 | Restricted |0.32 | Filtering |1.00

 | Too acid |0.07 | permeability | | capacity |

 | | | | | Too steep for |0.08

 | | | | | surface |

 | | | | | application |

 | | | | | Too acid |0.07

 | | | | | |

776C: | | | | | |

 Lilah---------------|Very limited | |Somewhat limited | |Very limited |

 | Seepage |1.00 | Slope |0.50 | Filtering |1.00

 | Too acid |0.67 | Restricted |0.32 | capacity |

 | | | permeability | | Too steep for |0.68

 | | | | | surface |

 | | | | | application |

 | | | | | Too acid |0.67

 | | | | | |

777: | | | | | |

 Wapsie--------------|Very limited | |Very limited | |Very limited |

 | Seepage |1.00 | Restricted |1.00 | Filtering |1.00

 | | | permeability | | capacity |

 | | | | | |

781B: | | | | | |

 Lourdes-------------|Very limited | |Very limited | |Somewhat limited |

 | Seepage |1.00 | Restricted |1.00 | Restricted |0.15

 | | | permeability | | permeability |

 | | | Depth to |1.00 | Too steep for |0.08

 | | | saturated zone | | surface |

 | | | | | application |

 | | | | | |

781C2: | | | | | |

 Lourdes, moderately | | | | | |

 eroded-------------|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 | | Depth to |1.00 | application |

 | application | | saturated zone | | Restricted |0.15

 | | | Slope |0.88 | permeability |

 | | | | | Too steep for |0.06

 | | | | | sprinkler |

 | | | | | application |

 | | | | | |
Black Hawk County, Iowa 387

Table 17b.--Agricultural Waste Management--Continued

___________________________________________________________________________________________________

 | | |

 Map symbol | Overland flow | Rapid infiltration | Slow rate treatment

 and soil name | of wastewater | of wastewater | of wastewater

 | | | _____________________________________________________________________________

 | Rating class and |Value| Rating class and |Value| Rating class and |Value

 | limiting features | | limiting features | | limiting features | ___________________________________________________________________________________________________

 | | | | | |

782B: | | | | | |

 Donnan--------------|Very limited | |Very limited | |Very limited |

 | Seepage |1.00 | Restricted |1.00 | Depth to |1.00

 | Depth to |1.00 | permeability | | saturated zone |

 | saturated zone | | Depth to |1.00 | Restricted |1.00

 | Too acid |0.07 | saturated zone | | permeability |

 | | | | | Too steep for |0.08

 | | | | | surface |

 | | | | | application |

 | | | | | Too acid |0.07

 | | | | | |

798: | | | | | |

 Protivin------------|Very limited | |Very limited | |Very limited |

 | Seepage |1.00 | Restricted |1.00 | Depth to |1.00

 | Depth to |1.00 | permeability | | saturated zone |

 | saturated zone | | Depth to |1.00 | Restricted |0.15

 | Too acid |0.07 | saturated zone | | permeability |

 | | | | | Too acid |0.07

 | | | | | |

809B: | | | | | |

 Bertram-------------|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 |0.32 | Too steep for |0.08

 | | | permeability | | surface |

 | | | | | application |

 | | | | | Filtering |0.01

 | | | | | capacity |

 | | | | | |

877B: | | | | | |

 Dinsmore------------|Very limited | |Very limited | |Somewhat limited |

 | Seepage |1.00 | Depth to |1.00 | Too steep for |0.08

 | Too acid |0.07 | saturated zone | | surface |

 | | | Restricted |1.00 | application |

 | | | permeability | | Too acid |0.07

 | | | | | |

884: | | | | | |

 Klingmore-----------|Very limited | |Very limited | |Very limited |

 | Seepage |1.00 | Depth to |1.00 | Depth to |1.00

 | Depth to |1.00 | saturated zone | | saturated zone |

 | saturated zone | | Restricted |1.00 | Too acid |0.07

 | Too acid |0.07 | permeability | | |

 | | | | | |

911B: | | | | | |

 Colo----------------|Very limited | |Very limited | |Very limited |

 | Seepage |1.00 | Depth to |1.00 | Depth to |1.00

 | Depth to |1.00 | saturated zone | | saturated zone |

 | saturated zone | | Restricted |1.00 | |

 | | | permeability | | |

 | | | | | |

 Ely-----------------|Very limited | |Very limited | |Very limited |

 | Seepage |1.00 | Depth to |1.00 | Depth to |1.00

 | Depth to |1.00 | saturated zone | | saturated zone |

 | saturated zone | | Restricted |1.00 | Too steep for |0.08

 | | | permeability | | surface |

 | | | | | application |

 | | | | | |
388 Soil Survey of

Table 17b.--Agricultural Waste Management--Continued

___________________________________________________________________________________________________

 | | |

 Map symbol | Overland flow | Rapid infiltration | Slow rate treatment

 and soil name | of wastewater | of wastewater | of wastewater

 | | | _____________________________________________________________________________

 | Rating class and |Value| Rating class and |Value| Rating class and |Value

 | limiting features | | limiting features | | limiting features | ___________________________________________________________________________________________________

 | | | | | |

933: | | | | | |

 Sawmill, | | | | | |

 occasionally | | | | | |

 flooded------------|Very limited | |Very limited | |Very limited |

 | Flooding |1.00 | Depth to |1.00 | Depth to |1.00

 | Seepage |1.00 | saturated zone | | saturated zone |

 | Depth to |1.00 | Restricted |1.00 | Flooding |0.60

 | saturated zone | | permeability | | |

 | | | Flooding |0.60 | |

 | | | | | |

982: | | | | | |

 Maxmore-------------|Very limited | |Very limited | |Very limited |

 | Seepage |1.00 | Depth to |1.00 | Depth to |1.00

 | Depth to |1.00 | saturated zone | | saturated zone |

 | saturated zone | | Restricted |1.00 | |

 | | | permeability | | |

 | | | | | |

1152: | | | | | |

 Marshan, 24 to 40 | | | | | |

 inches to sand and | | | | | |

 gravel-------------|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

 | | | permeability | | saturated zone |

 | | | | | |

1226: | | | | | |

 Lawler, 24 to 40 | | | | | |

 inches to sand and | | | | | |

 gravel-------------|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

 | | | permeability | | saturated zone |

 | | | | | |

1285G: | | | | | |

 Burkhardt-----------|Very limited | |Very limited | |Very limited |

 | Seepage |1.00 | Slope |1.00 | Filtering |1.00

 | Too steep for |1.00 | Restricted |0.32 | capacity |

 | surface | | permeability | | Too steep for |1.00

 | application | | | | surface |

 | Too acid |0.67 | | | application |

 | | | | | Too steep for |1.00

 | | | | | sprinkler |

 | | | | | application |

 | | | | | Too acid |0.67

 | | | | | |

 Bassett-------------|Very limited | |Very limited | |Very limited |

 | Seepage |1.00 | Slope |1.00 | Too steep for |1.00

 | Too steep for |1.00 | Depth to |1.00 | surface |

 | surface | | saturated zone | | application |

 | application | | Restricted |1.00 | Too steep for |1.00

 | Depth to |1.00 | permeability | | sprinkler |

 | saturated zone | | | | application |

 | Too acid |0.07 | | | Depth to |1.00

 | | | | | saturated zone |

 | | | | | Too acid |0.07

 | | | | | |
Black Hawk County, Iowa 389

Table 17b.--Agricultural Waste Management--Continued

___________________________________________________________________________________________________

 | | |

 Map symbol | Overland flow | Rapid infiltration | Slow rate treatment

 and soil name | of wastewater | of wastewater | of wastewater

 | | | _____________________________________________________________________________

 | Rating class and |Value| Rating class and |Value| Rating class and |Value

 | limiting features | | limiting features | | limiting features | ___________________________________________________________________________________________________

 | | | | | |

1285G: | | | | | |

 Chelsea-------------|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 |

 | | | | | |

1585: | | | | | |

 Spillville, | | | | | |

 frequently flooded |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 |1.00 | |

 | | | permeability | | |

 | | | | | |

 Coland, frequently | | | | | |

 flooded------------|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 |1.00 | |

 | | | permeability | | |

 | | | | | |

 Aquolls, ponded-----|Not rated | |Not rated | |Not rated |

 | | | | | |

1586: | | | | | |

 Sigglekov, | | | | | |

 frequently flooded |Very limited | |Very limited | |Very limited |

 | Flooding |1.00 | Flooding |1.00 | Filtering |1.00

 | Seepage |1.00 | Depth to |1.00 | capacity |

 | Depth to |1.00 | saturated zone | | Depth to |1.00

 | saturated zone | | Restricted |0.32 | saturated zone |

 | Too acid |0.14 | permeability | | Flooding |1.00

 | | | | | Too acid |0.14

 | | | | | |

 Fluvaquents, | | | | | |

 frequently flooded |Very limited | |Very limited | |Very limited |

 | Not rated; pH | | Flooding |1.00 | Depth to |1.00

 | Flooding |1.00 | Depth to |1.00 | saturated zone |

 | Depth to |1.00 | saturated zone | | Flooding |1.00

 | saturated zone | | | | |

 | | | | | |

 Aquents, ponded-----|Not rated | |Not rated | |Not rated |

 | | | | | |

4000: | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4007: | | | | | |

 Wiota---------------|Very limited | |Very limited | |Very limited |

 | Seepage |1.00 | Restricted |1.00 | Filtering |1.00

 | | | permeability | | capacity |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |
390 Soil Survey of

Table 17b.--Agricultural Waste Management--Continued

___________________________________________________________________________________________________

 | | |

 Map symbol | Overland flow | Rapid infiltration | Slow rate treatment

 and soil name | of wastewater | of wastewater | of wastewater

 | | | _____________________________________________________________________________

 | Rating class and |Value| Rating class and |Value| Rating class and |Value

 | limiting features | | limiting features | | limiting features | ___________________________________________________________________________________________________

 | | | | | |

4041: | | | | | |

 Sparta--------------|Very limited | |Somewhat limited | |Very limited |

 | Seepage |1.00 | Restricted |0.32 | Filtering |1.00

 | Too acid |0.07 | permeability | | capacity |

 | | | | | Too acid |0.07

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4041B: | | | | | |

 Sparta--------------|Very limited | |Somewhat limited | |Very limited |

 | Seepage |1.00 | Restricted |0.32 | Filtering |1.00

 | Too acid |0.07 | permeability | | capacity |

 | | | | | Too steep for |0.08

 | | | | | surface |

 | | | | | application |

 | | | | | Too acid |0.07

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4041C: | | | | | |

 Sparta--------------|Very limited | |Somewhat limited | |Very limited |

 | Seepage |1.00 | Slope |0.88 | Filtering |1.00

 | Too acid |0.07 | Restricted |0.32 | capacity |

 | Too steep for |0.06 | permeability | | Too steep for |0.92

 | surface | | | | surface |

 | application | | | | application |

 | | | | | Too acid |0.07

 | | | | | Too steep for |0.06

 | | | | | sprinkler |

 | | | | | application |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4041D: | | | | | |

 Sparta--------------|Very limited | |Very limited | |Very limited |

 | Seepage |1.00 | Slope |1.00 | Filtering |1.00

 | Too steep for |1.00 | Restricted |0.32 | capacity |

 | surface | | permeability | | Too steep for |1.00

 | application | | | | surface |

 | Too acid |0.07 | | | application |

 | | | | | Too steep for |1.00

 | | | | | sprinkler |

 | | | | | application |

 | | | | | Too acid |0.07

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4063B: | | | | | |

 Chelsea-------------|Very limited | |Not limited | |Very limited |

 | Seepage |1.00 | | | Filtering |1.00

 | | | | | capacity |

 | | | | | Too steep for |0.08

 | | | | | surface |

 | | | | | application |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |
Black Hawk County, Iowa 391

Table 17b.--Agricultural Waste Management--Continued

___________________________________________________________________________________________________

 | | |

 Map symbol | Overland flow | Rapid infiltration | Slow rate treatment

 and soil name | of wastewater | of wastewater | of wastewater

 | | | _____________________________________________________________________________

 | Rating class and |Value| Rating class and |Value| Rating class and |Value

 | limiting features | | limiting features | | limiting features | ___________________________________________________________________________________________________

 | | | | | |

4063C: | | | | | |

 Chelsea-------------|Very limited | |Somewhat limited | |Very limited |

 | Seepage |1.00 | Slope |0.88 | Filtering |1.00

 | Too steep for |0.06 | | | capacity |

 | surface | | | | Too steep for |0.92

 | application | | | | surface |

 | | | | | application |

 | | | | | Too steep for |0.06

 | | | | | sprinkler |

 | | | | | application |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4063D: | | | | | |

 Chelsea-------------|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 |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4083B: | | | | | |

 Kenyon--------------|Very limited | |Very limited | |Somewhat limited |

 | Seepage |1.00 | Depth to |1.00 | Too steep for |0.08

 | | | saturated zone | | surface |

 | | | Restricted |1.00 | application |

 | | | permeability | | |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4083C: | | | | | |

 Kenyon--------------|Very limited | |Very limited | |Somewhat limited |

 | Seepage |1.00 | Depth to |1.00 | Too steep for |0.92

 | Too steep for |0.06 | saturated zone | | surface |

 | surface | | Restricted |1.00 | application |

 | application | | permeability | | Too steep for |0.06

 | | | Slope |0.88 | sprinkler |

 | | | | | application |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4083D: | | | | | |

 Kenyon--------------|Very limited | |Very limited | |Very limited |

 | Seepage |1.00 | Slope |1.00 | Too steep for |1.00

 | Too steep for |1.00 | Depth to |1.00 | surface |

 | surface | | saturated zone | | application |

 | application | | Restricted |1.00 | Too steep for |1.00

 | | | permeability | | sprinkler |

 | | | | | application |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |
392 Soil Survey of

Table 17b.--Agricultural Waste Management--Continued

___________________________________________________________________________________________________

 | | |

 Map symbol | Overland flow | Rapid infiltration | Slow rate treatment

 and soil name | of wastewater | of wastewater | of wastewater

 | | | _____________________________________________________________________________

 | Rating class and |Value| Rating class and |Value| Rating class and |Value

 | limiting features | | limiting features | | limiting features | ___________________________________________________________________________________________________

 | | | | | |

4084: | | | | | |

 Clyde---------------|Very limited | |Very limited | |Very limited |

 | Seepage |1.00 | Depth to |1.00 | Depth to |1.00

 | Depth to |1.00 | saturated zone | | saturated zone |

 | saturated zone | | Restricted |1.00 | |

 | | | permeability | | |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4088: | | | | | |

 Nevin---------------|Very limited | |Very limited | |Very limited |

 | Seepage |1.00 | Depth to |1.00 | Depth to |1.00

 | Depth to |1.00 | saturated zone | | saturated zone |

 | saturated zone | | Restricted |1.00 | |

 | Flooding |0.40 | permeability | | |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4133: | | | | | |

 Colo, occasionally | | | | | |

 flooded------------|Very limited | |Very limited | |Very limited |

 | Flooding |1.00 | Depth to |1.00 | Depth to |1.00

 | Seepage |1.00 | saturated zone | | saturated zone |

 | Depth to |1.00 | Restricted |1.00 | Flooding |0.60

 | saturated zone | | permeability | | |

 | | | Flooding |0.60 | |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4135: | | | | | |

 Coland, occasionally| | | | | |

 flooded------------|Very limited | |Very limited | |Very limited |

 | Flooding |1.00 | Depth to |1.00 | Depth to |1.00

 | Seepage |1.00 | saturated zone | | saturated zone |

 | Depth to |1.00 | Restricted |1.00 | Flooding |0.60

 | saturated zone | | permeability | | |

 | | | Flooding |0.60 | |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4152: | | | | | |

 Marshan, 24 to 40 | | | | | |

 inches to sand and | | | | | |

 gravel-------------|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

 | | | permeability | | saturated zone |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4159: | | | | | |

 Finchford-----------|Very limited | |Not limited | |Very limited |

 | Seepage |1.00 | | | Filtering |1.00

 | | | | | capacity |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |
Black Hawk County, Iowa 393

Table 17b.--Agricultural Waste Management--Continued

___________________________________________________________________________________________________

 | | |

 Map symbol | Overland flow | Rapid infiltration | Slow rate treatment

 and soil name | of wastewater | of wastewater | of wastewater

 | | | _____________________________________________________________________________

 | Rating class and |Value| Rating class and |Value| Rating class and |Value

 | limiting features | | limiting features | | limiting features | ___________________________________________________________________________________________________

 | | | | | |

4159C: | | | | | |

 Finchford-----------|Very limited | |Somewhat limited | |Very limited |

 | Seepage |1.00 | Slope |0.50 | Filtering |1.00

 | | | | | capacity |

 | | | | | Too steep for |0.68

 | | | | | surface |

 | | | | | application |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4171B: | | | | | |

 Bassett-------------|Very limited | |Very limited | |Very limited |

 | Seepage |1.00 | Depth to |1.00 | Depth to |1.00

 | Depth to |1.00 | saturated zone | | saturated zone |

 | saturated zone | | Restricted |1.00 | Too steep for |0.08

 | Too acid |0.07 | permeability | | surface |

 | | | | | application |

 | | | | | Too acid |0.07

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4171D: | | | | | |

 Bassett-------------|Very limited | |Very limited | |Very limited |

 | Seepage |1.00 | Depth to |1.00 | Too steep for |1.00

 | Too steep for |1.00 | saturated zone | | surface |

 | surface | | Restricted |1.00 | application |

 | application | | permeability | | Too steep for |1.00

 | Depth to |1.00 | Slope |1.00 | sprinkler |

 | saturated zone | | | | application |

 | Too acid |0.07 | | | Depth to |1.00

 | | | | | saturated zone |

 | | | | | Too acid |0.07

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4175: | | | | | |

 Dickinson-----------|Very limited | |Somewhat limited | |Very limited |

 | Seepage |1.00 | Restricted |0.32 | Filtering |1.00

 | | | permeability | | capacity |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4175B: | | | | | |

 Dickinson-----------|Very limited | |Somewhat limited | |Very limited |

 | Seepage |1.00 | Restricted |0.32 | Filtering |1.00

 | | | permeability | | capacity |

 | | | | | Too steep for |0.08

 | | | | | surface |

 | | | | | application |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4177: | | | | | |

 Saude---------------|Very limited | |Very limited | |Very limited |

 | Seepage |1.00 | Restricted |1.00 | Filtering |1.00

 | | | permeability | | capacity |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |
394 Soil Survey of

Table 17b.--Agricultural Waste Management--Continued

___________________________________________________________________________________________________

 | | |

 Map symbol | Overland flow | Rapid infiltration | Slow rate treatment

 and soil name | of wastewater | of wastewater | of wastewater

 | | | _____________________________________________________________________________

 | Rating class and |Value| Rating class and |Value| Rating class and |Value

 | limiting features | | limiting features | | limiting features | ___________________________________________________________________________________________________

 | | | | | |

4177B: | | | | | |

 Saude---------------|Very limited | |Very limited | |Very limited |

 | Seepage |1.00 | Restricted |1.00 | Filtering |1.00

 | | | permeability | | capacity |

 | | | | | Too steep for |0.08

 | | | | | surface |

 | | | | | application |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4178: | | | | | |

 Waukee--------------|Very limited | |Very limited | |Very limited |

 | Seepage |1.00 | Restricted |1.00 | Filtering |1.00

 | Too acid |0.14 | permeability | | capacity |

 | | | | | Too acid |0.14

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4184: | | | | | |

 Klinger-------------|Very limited | |Very limited | |Very limited |

 | Seepage |1.00 | Depth to |1.00 | Depth to |1.00

 | Depth to |1.00 | saturated zone | | saturated zone |

 | saturated zone | | Restricted |1.00 | Too acid |0.07

 | Too acid |0.07 | permeability | | |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4198B: | | | | | |

 Floyd---------------|Very limited | |Very limited | |Very limited |

 | Seepage |1.00 | Depth to |1.00 | Depth to |1.00

 | Depth to |1.00 | saturated zone | | saturated zone |

 | saturated zone | | Restricted |1.00 | Filtering |0.01

 | | | permeability | | capacity |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4226: | | | | | |

 Lawler, 24 to 40 | | | | | |

 inches to sand and | | | | | |

 gravel-------------|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

 | | | permeability | | saturated zone |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4284: | | | | | |

 Flagler-------------|Very limited | |Somewhat limited | |Very limited |

 | Seepage |1.00 | Restricted |0.32 | Filtering |1.00

 | | | permeability | | capacity |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |
Black Hawk County, Iowa 395

Table 17b.--Agricultural Waste Management--Continued

___________________________________________________________________________________________________

 | | |

 Map symbol | Overland flow | Rapid infiltration | Slow rate treatment

 and soil name | of wastewater | of wastewater | of wastewater

 | | | _____________________________________________________________________________

 | Rating class and |Value| Rating class and |Value| Rating class and |Value

 | limiting features | | limiting features | | limiting features | ___________________________________________________________________________________________________

 | | | | | |

4284B: | | | | | |

 Flagler-------------|Very limited | |Somewhat limited | |Very limited |

 | Seepage |1.00 | Restricted |0.32 | Filtering |1.00

 | | | permeability | | capacity |

 | | | | | Too steep for |0.08

 | | | | | surface |

 | | | | | application |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4377B: | | | | | |

 Dinsdale------------|Very limited | |Very limited | |Somewhat limited |

 | Seepage |1.00 | Depth to |1.00 | Too steep for |0.08

 | Too acid |0.07 | saturated zone | | surface |

 | | | Restricted |1.00 | application |

 | | | permeability | | Too acid |0.07

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4377C: | | | | | |

 Dinsdale------------|Very limited | |Very limited | |Somewhat limited |

 | Seepage |1.00 | Depth to |1.00 | Too steep for |0.92

 | Too acid |0.07 | saturated zone | | surface |

 | Too steep for |0.06 | Restricted |1.00 | application |

 | surface | | permeability | | Too acid |0.07

 | application | | Slope |0.88 | Too steep for |0.06

 | | | | | sprinkler |

 | | | | | application |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4382: | | | | | |

 Maxfield------------|Very limited | |Very limited | |Very limited |

 | Seepage |1.00 | Depth to |1.00 | Depth to |1.00

 | Depth to |1.00 | saturated zone | | saturated zone |

 | saturated zone | | Restricted |1.00 | |

 | | | permeability | | |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4391B: | | | | | |

 Clyde---------------|Very limited | |Very limited | |Very limited |

 | Seepage |1.00 | Depth to |1.00 | Depth to |1.00

 | Depth to |1.00 | saturated zone | | saturated zone |

 | saturated zone | | Restricted |1.00 | |

 | | | permeability | | |

 | | | | | |

 Floyd---------------|Very limited | |Very limited | |Very limited |

 | Seepage |1.00 | Depth to |1.00 | Depth to |1.00

 | Depth to |1.00 | saturated zone | | saturated zone |

 | saturated zone | | Restricted |1.00 | Filtering |0.01

 | | | permeability | | capacity |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |
396 Soil Survey of

Table 17b.--Agricultural Waste Management--Continued

___________________________________________________________________________________________________

 | | |

 Map symbol | Overland flow | Rapid infiltration | Slow rate treatment

 and soil name | of wastewater | of wastewater | of wastewater

 | | | _____________________________________________________________________________

 | Rating class and |Value| Rating class and |Value| Rating class and |Value

 | limiting features | | limiting features | | limiting features | ___________________________________________________________________________________________________

 | | | | | |

4398: | | | | | |

 Tripoli-------------|Very limited | |Very limited | |Very limited |

 | Seepage |1.00 | Depth to |1.00 | Depth to |1.00

 | Depth to |1.00 | saturated zone | | saturated zone |

 | saturated zone | | Restricted |1.00 | |

 | | | permeability | | |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4399: | | | | | |

 Readlyn-------------|Very limited | |Very limited | |Very limited |

 | Seepage |1.00 | Depth to |1.00 | Depth to |1.00

 | Depth to |1.00 | saturated zone | | saturated zone |

 | saturated zone | | Restricted |1.00 | Too acid |0.07

 | Too acid |0.07 | permeability | | |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4408B: | | | | | |

 Olin----------------|Very limited | |Very limited | |Somewhat limited |

 | Seepage |1.00 | Restricted |1.00 | Too steep for |0.08

 | | | permeability | | surface |

 | | | | | application |

 | | | | | Filtering |0.01

 | | | | | capacity |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4408C: | | | | | |

 Olin----------------|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 |

 | | | | | Filtering |0.01

 | | | | | capacity |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4426B: | | | | | |

 Aredale-------------|Very limited | |Very limited | |Somewhat limited |

 | Seepage |1.00 | Restricted |1.00 | Restricted |0.15

 | | | permeability | | permeability |

 | | | | | Too steep for |0.08

 | | | | | surface |

 | | | | | application |

 | | | | | Filtering |0.01

 | | | | | capacity |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |
Black Hawk County, Iowa 397

Table 17b.--Agricultural Waste Management--Continued

___________________________________________________________________________________________________

 | | |

 Map symbol | Overland flow | Rapid infiltration | Slow rate treatment

 and soil name | of wastewater | of wastewater | of wastewater

 | | | _____________________________________________________________________________

 | Rating class and |Value| Rating class and |Value| Rating class and |Value

 | limiting features | | limiting features | | limiting features | ___________________________________________________________________________________________________

 | | | | | |

4426C: | | | | | |

 Aredale-------------|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 | | | | Restricted |0.15

 | | | | | permeability |

 | | | | | Too steep for |0.06

 | | | | | sprinkler |

 | | | | | application |

 | | | | | Filtering |0.01

 | | | | | capacity |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4585: | | | | | |

 Spillville, | | | | | |

 occasionally | | | | | |

 flooded------------|Very limited | |Very limited | |Very limited |

 | Flooding |1.00 | Depth to |1.00 | Depth to |1.00

 | Seepage |1.00 | saturated zone | | saturated zone |

 | Depth to |1.00 | Restricted |1.00 | Flooding |0.60

 | saturated zone | | permeability | | |

 | | | Flooding |0.60 | |

 | | | | | |

 Coland, occasionally| | | | | |

 flooded------------|Very limited | |Very limited | |Very limited |

 | Flooding |1.00 | Depth to |1.00 | Depth to |1.00

 | Seepage |1.00 | saturated zone | | saturated zone |

 | Depth to |1.00 | Restricted |1.00 | Flooding |0.60

 | saturated zone | | permeability | | |

 | | | Flooding |0.60 | |

 | | | | | |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4761: | | | | | |

 Franklin------------|Very limited | |Very limited | |Very limited |

 | Seepage |1.00 | Depth to |1.00 | Depth to |1.00

 | Depth to |1.00 | saturated zone | | saturated zone |

 | saturated zone | | Restricted |1.00 | Too acid |0.31

 | Too acid |0.31 | permeability | | |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4771B: | | | | | |

 Waubeek-------------|Very limited | |Very limited | |Somewhat limited |

 | Seepage |1.00 | Depth to |1.00 | Too steep for |0.08

 | | | saturated zone | | surface |

 | | | Restricted |1.00 | application |

 | | | permeability | | |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |
398 Soil Survey of

Table 17b.--Agricultural Waste Management--Continued

___________________________________________________________________________________________________

 | | |

 Map symbol | Overland flow | Rapid infiltration | Slow rate treatment

 and soil name | of wastewater | of wastewater | of wastewater

 | | | _____________________________________________________________________________

 | Rating class and |Value| Rating class and |Value| Rating class and |Value

 | limiting features | | limiting features | | limiting features | ___________________________________________________________________________________________________

 | | | | | |

4771D: | | | | | |

 Waubeek-------------|Very limited | |Very limited | |Very limited |

 | Seepage |1.00 | Depth to |1.00 | Too steep for |1.00

 | Too steep for |0.50 | saturated zone | | surface |

 | surface | | Restricted |1.00 | application |

 | application | | permeability | | Too steep for |0.50

 | | | Slope |1.00 | sprinkler |

 | | | | | application |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4798: | | | | | |

 Protivin------------|Very limited | |Very limited | |Very limited |

 | Seepage |1.00 | Restricted |1.00 | Depth to |1.00

 | Depth to |1.00 | permeability | | saturated zone |

 | saturated zone | | Depth to |1.00 | Restricted |0.15

 | Too acid |0.07 | saturated zone | | permeability |

 | | | | | Too acid |0.07

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4911B: | | | | | |

 Colo----------------|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 |1.00 | |

 | | | permeability | | |

 | | | | | |

 Ely-----------------|Very limited | |Very limited | |Very limited |

 | Seepage |1.00 | Depth to |1.00 | Depth to |1.00

 | Depth to |1.00 | saturated zone | | saturated zone |

 | saturated zone | | Restricted |1.00 | Too steep for |0.08

 | | | permeability | | surface |

 | | | | | application |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4933: | | | | | |

 Sawmill, | | | | | |

 occasionally | | | | | |

 flooded------------|Very limited | |Very limited | |Very limited |

 | Flooding |1.00 | Depth to |1.00 | Depth to |1.00

 | Seepage |1.00 | saturated zone | | saturated zone |

 | Depth to |1.00 | Restricted |1.00 | Flooding |0.60

 | saturated zone | | permeability | | |

 | | | Flooding |0.60 | |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

4946: | | | | | |

 Orthents, loamy-----|Not rated | |Not rated | |Not rated |

 | | | | | |

 Urban land----------|Not rated | |Not rated | |Not rated |

 | | | | | |

5010: | | | | | |

 Pits, sand and | | | | | |

 gravel-------------|Not rated | |Not rated | |Not rated |

 | | | | | |
Black Hawk County, Iowa 399

Table 17b.--Agricultural Waste Management--Continued

___________________________________________________________________________________________________

 | | |

 Map symbol | Overland flow | Rapid infiltration | Slow rate treatment

 and soil name | of wastewater | of wastewater | of wastewater

 | | | _____________________________________________________________________________

 | Rating class and |Value| Rating class and |Value| Rating class and |Value

 | limiting features | | limiting features | | limiting features | ___________________________________________________________________________________________________

 | | | | | |

5030: | | | | | |

 Pits, limestone | | | | | |

 quarries-----------|Not rated | |Not rated | |Not rated |

 | | | | | |

5040: | | | | | |

 Orthents, loamy-----|Not rated | |Not rated | |Not rated |

 | | | | | |

5053: | | | | | |

 Psammaquents, | | | | | |

 frequently flooded |Not rated | |Not rated | |Not rated |

 | | | | | |

5080: | | | | | |

 Orthents, sanitary | | | | | |

 landfill-----------|Not rated | |Not rated | |Not rated |

 | | | | | |

AW: | | | | | |

 Animal waste--------|Not rated | |Not rated | |Not rated |

 | | | | | |

SL: | | | | | |

 Sewage lagoon-------|Not rated | |Not rated | |Not rated |

 | | | | | |

W: | | | | | |

 Water---------------|Not rated | |Not rated | |Not rated |

 | | | | | | ___________________________________________________________________________________________________
Table 18.--Engineering Index Properties (Absence of an entry indicates that data were not estimated) _______________________________________________________________________________________________________

 | | | Classification | Fragments | Percentage pass Map symbol | Depth | USDA texture |___________________________|_____________| sieve number- and | | | | | >10 | 3-10 |___________________ soil name | | | Unified | AASHTO |inches|inches| 4 | 10 | 40 _______________________________________________________________________________________________________ | In | | | | Pct | Pct | | |  | | | | | | | | | 7: | | | | | | | | |  Wiota-----------| 0-8 |Silt loam, |CL |A-6 | 0 | 0 | 100 | 100 | 100  | | silty clay | | | | | | |  | | loam | | | | | | |  | 8-22 |Silt loam, |CL |A-6 | 0 | 0 | 100 | 100 | 100  | | silty clay | | | | | | |  | | loam | | | | | | |  | 22-28 |Silty clay loam|CL |A-7 | 0 | 0 | 100 | 100 |95-10 | 28-48 |Silty clay loam|CL |A-7 | 0 | 0 | 100 | 100 |95-10 | 48-54 |Silt loam, |CL |A-7, A-6 | 0 | 0 | 100 | 100 |95-10 | | silty clay | | | | | | |  | | loam | | | | | | |  | 54-80 |Sand, loamy |SC-SM, SM |A-2-4, A-3 | 0 | 0 | 100 |95-100|60-80  | | sand | | | | | | |  | | | | | | | | | 41: | | | | | | | | |  Sparta----------| 0-11 |Sand, fine |SM |A-2-4, A-3 | 0 | 0 |95-100|90-100|50-95  | | sand, loamy | | | | | | |  | | sand, loamy | | | | | | |  | | fine sand | | | | | | |  | 11-15 |Sand, fine |SM |A-2-4, A-3 | 0 | 0 |95-100|90-100|50-95  | | sand, loamy | | | | | | |  | | sand, loamy | | | | | | |  | | fine sand | | | | | | |  | 15-34 |Sand, loamy |SP-SM, SM |A-2-4, A-3 | 0 | 0 |95-100|90-100|50-95  | | sand, loamy | | | | | | |  | | fine sand, | | | | | | |  | | fine sand | | | | | | |  | 34-60 |Sand, fine sand|SP-SM, SM, SP|A-2-4, A-3 | 0 | 0 |95-100|90-100|50-95  | | | | | | | | | 
Table 18.--Engineering Index Properties--Continued _______________________________________________________________________________________________________

 | | | Classification | Fragments | Percentage pass Map symbol | Depth | USDA texture |___________________________|_____________| sieve number- and | | | | | >10 | 3-10 |___________________ soil name | | | Unified | AASHTO |inches|inches| 4 | 10 | 40 _______________________________________________________________________________________________________ | In | | | | Pct | Pct | | |  | | | | | | | | | 41B: | | | | | | | | |  Sparta----------| 0-11 |Sand, fine |SM |A-2-4, A-3 | 0 | 0 |95-100|90-100|50-95  | | sand, loamy | | | | | | |  | | sand, loamy | | | | | | |  | | fine sand | | | | | | |  | 11-15 |Sand, fine |SM |A-2-4, A-3 | 0 | 0 |95-100|90-100|50-95  | | sand, loamy | | | | | | |  | | sand, loamy | | | | | | |  | | fine sand | | | | | | |  | 15-34 |Sand, loamy |SP-SM, SM |A-2-4, A-3 | 0 | 0 |95-100|90-100|50-95  | | sand, loamy | | | | | | |  | | fine sand, | | | | | | |  | | fine sand | | | | | | |  | 34-60 |Sand, fine sand|SP-SM, SM, SP|A-2-4, A-3 | 0 | 0 |95-100|90-100|50-95  | | | | | | | | | 41C: | | | | | | | | |  Sparta----------| 0-9 |Sand, fine |SM |A-2-4, A-3 | 0 | 0 |95-100|90-100|50-95  | | sand, loamy | | | | | | |  | | sand, loamy | | | | | | |  | | fine sand | | | | | | |  | 9-14 |Sand, fine |SM |A-2-4, A-3 | 0 | 0 |95-100|90-100|50-95  | | sand, loamy | | | | | | |  | | sand, loamy | | | | | | |  | | fine sand | | | | | | |  | 14-32 |Sand, loamy |SP-SM, SM |A-2-4, A-3 | 0 | 0 |95-100|90-100|50-95  | | sand, loamy | | | | | | |  | | fine sand, | | | | | | |  | | fine sand | | | | | | |  | 32-60 |Sand, fine sand|SP-SM, SM, SP|A-2-4, A-3 | 0 | 0 |95-100|90-100|50-95  | | | | | | | | | 41D: | | | | | | | | |  Sparta----------| 0-9 |Sand, fine |SM |A-2-4, A-3 | 0 | 0 |95-100|90-100|50-95  | | sand, loamy | | | | | | |  | | sand, loamy | | | | | | |  | | fine sand | | | | | | |  | 9-14 |Sand, fine |SM |A-2-4, A-3 | 0 | 0 |95-100|90-100|50-95  | | sand, loamy | | | | | | |  | | sand, loamy | | | | | | |  | | fine sand | | | | | | |  | 14-30 |Sand, loamy |SP-SM, SM |A-2-4, A-3 | 0 | 0 |95-100|90-100|50-95  | | sand, loamy | | | | | | |  | | fine sand, | | | | | | |  | | fine sand | | | | | | |  | 30-60 |Sand, fine sand|SP-SM, SM, SP|A-2-4, A-3 | 0 | 0 |95-100|90-100|50-95  | | | | | | | | | 
Table 18.--Engineering Index Properties--Continued _______________________________________________________________________________________________________

 | | | Classification | Fragments | Percentage pass Map symbol | Depth | USDA texture |___________________________|_____________| sieve number- and | | | | | >10 | 3-10 |___________________ soil name | | | Unified | AASHTO |inches|inches| 4 | 10 | 40 _______________________________________________________________________________________________________ | In | | | | Pct | Pct | | |  | | | | | | | | | 63B: | | | | | | | | |  Chelsea---------| 0-8 |Fine sand, |SM, SP-SM |A-2-4 | 0 | 0 | 100 | 100 |65-80  | | loamy fine | | | | | | |  | | sand | | | | | | |  | 8-36 |Loamy fine |SM, SP, SP-SM|A-3, A-2-4 | 0 | 0 | 100 | 100 |65-85  | | sand, fine | | | | | | |  | | sand | | | | | | |  | 36-70 |Loamy fine |SM, SP, SP-SM|A-3, A-2-4 | 0 | 0 | 100 | 100 |65-85  | | sand, fine | | | | | | |  | | sandy loam, | | | | | | |  | | loamy sand, | | | | | | |  | | fine sand, | | | | | | |  | | sandy loam | | | | | | |  | | | | | | | | | 63C: | | | | | | | | |  Chelsea---------| 0-8 |Fine sand, |SM, SP-SM |A-2-4 | 0 | 0 | 100 | 100 |65-80  | | loamy fine | | | | | | |  | | sand | | | | | | |  | 8-36 |Loamy fine |SM, SP, SP-SM|A-3, A-2-4 | 0 | 0 | 100 | 100 |65-85  | | sand, fine | | | | | | |  | | sand | | | | | | |  | 36-70 |Loamy fine |SM, SP, SP-SM|A-3, A-2-4 | 0 | 0 | 100 | 100 |65-85  | | sand, fine | | | | | | |  | | sandy loam, | | | | | | |  | | loamy sand, | | | | | | |  | | fine sand, | | | | | | |  | | sandy loam | | | | | | |  | | | | | | | | | 63D: | | | | | | | | |  Chelsea---------| 0-8 |Fine sand, |SM, SP-SM |A-2-4 | 0 | 0 | 100 | 100 |65-80  | | loamy fine | | | | | | |  | | sand | | | | | | |  | 8-32 |Loamy fine |SM, SP, SP-SM|A-3, A-2-4 | 0 | 0 | 100 | 100 |65-85  | | sand, fine | | | | | | |  | | sand | | | | | | |  | 32-70 |Fine sand, |SM, SP, SP-SM|A-3, A-2-4 | 0 | 0 | 100 | 100 |65-85  | | sandy loam, | | | | | | |  | | loamy fine | | | | | | |  | | sand, fine | | | | | | |  | | sandy loam, | | | | | | |  | | loamy sand | | | | | | |  | | | | | | | | | 
Table 18.--Engineering Index Properties--Continued _______________________________________________________________________________________________________

 | | | Classification | Fragments | Percentage pass Map symbol | Depth | USDA texture |___________________________|_____________| sieve number- and | | | | | >10 | 3-10 |___________________ soil name | | | Unified | AASHTO |inches|inches| 4 | 10 | 40 _______________________________________________________________________________________________________ | In | | | | Pct | Pct | | |  | | | | | | | | | 83B: | | | | | | | | |  Kenyon----------| 0-8 |Loam, silt loam|CL |A-6 | 0 | 0-5 |95-100|95-100|85-95  | 8-14 |Loam, silt loam|CL |A-6 | 0 | 0-5 |95-100|95-100|85-95  | 14-19 |Loam, sandy |CL |A-6 | 0 | 0-5 |95-100|95-100|85-95  | | clay loam, | | | | | | |  | | silt loam | | | | | | |  | 19-47 |Loam, clay |CL |A-6 | 0 | 0-5 |90-95 |85-95 |80-90  | | loam, sandy | | | | | | |  | | clay loam | | | | | | |  | 47-54 |Loam |CL |A-6 | 0 | 0-5 |90-95 |85-95 |80-90  | 54-76 |Loam |CL |A-6 | 0 | 0-5 |90-95 |85-95 |80-90  | | | | | | | | | 83C: | | | | | | | | |  Kenyon----------| 0-8 |Loam, silt loam|CL |A-6 | 0 | 0-5 |95-100|95-100|85-95  | 8-14 |Loam, silt loam|CL |A-6 | 0 | 0-5 |95-100|95-100|85-95  | 14-19 |Loam, sandy |CL |A-6 | 0 | 0-5 |95-100|95-100|85-95  | | clay loam, | | | | | | |  | | silt loam | | | | | | |  | 19-47 |Loam, clay |CL |A-6 | 0 | 0-5 |90-95 |85-95 |80-90  | | loam, sandy | | | | | | |  | | clay loam | | | | | | |  | 47-54 |Loam |CL |A-6 | 0 | 0-5 |90-95 |85-95 |80-90  | 54-76 |Loam |CL |A-6 | 0 | 0-5 |90-95 |85-95 |80-90  | | | | | | | | | 83C2: | | | | | | | | |  Kenyon, | | | | | | | | |  moderately | | | | | | | | |  eroded---------| 0-8 |Loam |CL |A-6 | 0 | 0-5 |95-100|95-100|85-95  | 8-14 |Loam, sandy |CL |A-6 | 0 | 0-5 |95-100|95-100|85-95  | | clay loam | | | | | | |  | 14-40 |Loam, sandy |CL |A-6 | 0 | 0-5 |90-95 |85-95 |80-90  | | clay loam, | | | | | | |  | | clay loam | | | | | | |  | 40-46 |Loam |CL |A-6 | 0 | 0-5 |90-95 |85-95 |80-90  | 46-76 |Loam |CL |A-6 | 0 | 0-5 |90-95 |85-95 |80-90  | | | | | | | | | 
Table 18.--Engineering Index Properties--Continued _______________________________________________________________________________________________________

 | | | Classification | Fragments | Percentage pass Map symbol | Depth | USDA texture |___________________________|_____________| sieve number- and | | | | | >10 | 3-10 |___________________ soil name | | | Unified | AASHTO |inches|inches| 4 | 10 | 40 _______________________________________________________________________________________________________ | In | | | | Pct | Pct | | |  | | | | | | | | | 83D2: | | | | | | | | |  Kenyon, | | | | | | | | |  moderately | | | | | | | | |  eroded---------| 0-8 |Loam |CL |A-6 | 0 | 0-5 |95-100|95-100|85-95  | 8-14 |Sandy clay |CL |A-6 | 0 | 0-5 |95-100|95-100|85-95  | | loam, loam | | | | | | |  | 14-40 |Clay loam, |CL |A-6 | 0 | 0-5 |90-95 |85-95 |80-90  | | sandy clay | | | | | | |  | | loam, loam | | | | | | |  | 40-46 |Loam |CL |A-6 | 0 | 0-5 |90-95 |85-95 |80-90  | 46-76 |Loam |CL |A-6 | 0 | 0-5 |90-95 |85-95 |80-90  | | | | | | | | | 84: | | | | | | | | |  Clyde-----------| 0-8 |Clay loam, |OL, MH, ML, |A-7 | 0 | 0-5 |95-100|95-100|80-90  | | silty clay | OH | | | | | |  | | loam, loam | | | | | | |  | 8-17 |Silty clay |OL, MH, ML, |A-7 | 0 | 0-5 |95-100|95-100|80-90  | | loam, clay | OH | | | | | |  | | loam | | | | | | |  | 17-23 |Clay loam, |OL, MH, ML, |A-7 | 0 | 0-5 |95-100|95-100|80-90  | | silty clay | OH | | | | | |  | | loam | | | | | | |  | 23-41 |Clay loam, |CL, ML |A-6, A-7 | 0 | 0-5 |95-100|90-95 |75-90  | | silty clay | | | | | | |  | | loam | | | | | | |  | 41-44 |Sandy loam, |SM, SC-SM |A-2-4 | 0 | 2-5 |85-95 |85-95 |50-80  | | loam | | | | | | |  | 44-54 |Loam, clay loam|CL, SC |A-6 | 0-5 | 2-5 |90-95 |85-95 |75-90  | 54-66 |Clay loam, loam|CL, SC |A-6 | 0-5 | 2-5 |90-95 |85-95 |75-90  | | | | | | | | | 88: | | | | | | | | |  Nevin-----------| 0-8 |Silty clay loam|CL, OL |A-6, A-7 | 0 | 0 | 100 | 100 | 100  | 8-24 |Silty clay |CL, OL |A-6, A-7 | 0 | 0 | 100 | 100 | 100  | | loam, silt | | | | | | |  | | loam | | | | | | |  | 24-30 |Silt loam, |CL |A-7, A-6 | 0 | 0 | 100 | 100 |95-10 | | silty clay | | | | | | |  | | loam | | | | | | |  | 30-46 |Silty clay loam|CL |A-7-6 | 0 | 0 | 100 | 100 |95-10 | 46-58 |Silty clay loam|CL |A-7-6 | 0 | 0 | 100 | 100 |95-10 | 58-80 |Loamy sand, |SM, SC-SM |A-2-4, A-3 | 0 | 0 | 100 |95-100|60-80  | | sandy loam, | | | | | | |  | | sand | | | | | | |  | | | | | | | | | 
Table 18.--Engineering Index Properties--Continued _______________________________________________________________________________________________________

 | | | Classification | Fragments | Percentage pass Map symbol | Depth | USDA texture |___________________________|_____________| sieve number- and | | | | | >10 | 3-10 |___________________ soil name | | | Unified | AASHTO |inches|inches| 4 | 10 | 40 _______________________________________________________________________________________________________ | In | | | | Pct | Pct | | |  | | | | | | | | | 133: | | | | | | | | |  Colo, | | | | | | | | |  occasionally | | | | | | | | |  flooded--------| 0-8 |Silt loam, |CL, CH |A-7 | 0 | 0 | 100 | 100 |90-10 | | silty clay | | | | | | |  | | loam | | | | | | |  | 8-34 |Silt loam, |CL, CH |A-7 | 0 | 0 | 100 | 100 |90-10 | | silty clay | | | | | | |  | | loam | | | | | | |  | 34-40 |Silty clay loam|CL, CH |A-7 | 0 | 0 | 100 | 100 |90-10 | 40-46 |Silty clay loam|CL, CH |A-7 | 0 | 0 | 100 | 100 |90-10 | 46-52 |Silty clay loam|CL, CH |A-7 | 0 | 0 | 100 | 100 |90-10 | 52-60 |Clay loam, |CL, CH |A-7 | 0 | 0 | 100 | 100 |95-10 | | silty clay | | | | | | |  | | loam, silt | | | | | | |  | | loam | | | | | | |  | | | | | | | | | 135: | | | | | | | | |  Coland, | | | | | | | | |  occasionally | | | | | | | | |  flooded--------| 0-8 |Clay loam, |CL |A-7-6 | 0 | 0 | 100 | 100 |95-10 | | silty clay | | | | | | |  | | loam | | | | | | |  | 8-32 |Clay loam, |CL |A-7-6 | 0 | 0 | 100 | 100 |95-10 | | silty clay | | | | | | |  | | loam | | | | | | |  | 32-40 |Clay loam, loam|CL |A-7-6 | 0 | 0 | 100 | 100 |95-10 | 40-44 |Sandy loam, |CL, SC, |A-4, A-6 | 0 | 0 | 100 |90-100|60-70  | | loam, clay | CL-ML, SC-SM| | | | | |  | | loam | | | | | | |  | 44-52 |Sandy loam, |CL, SC, |A-4, A-6 | 0 | 0 | 100 |90-100|60-70  | | clay loam, | CL-ML, SC-SM| | | | | |  | | loam | | | | | | |  | 52-66 |Loam, clay |CL, SC, |A-4, A-6 | 0 | 0 | 100 |90-100|60-70  | | loam, sandy | CL-ML, SC-SM| | | | | |  | | loam | | | | | | |  | | | | | | | | | 
Table 18.--Engineering Index Properties--Continued _______________________________________________________________________________________________________

 | | | Classification | Fragments | Percentage pass Map symbol | Depth | USDA texture |___________________________|_____________| sieve number- and | | | | | >10 | 3-10 |___________________ soil name | | | Unified | AASHTO |inches|inches| 4 | 10 | 40 _______________________________________________________________________________________________________ | In | | | | Pct | Pct | | |  | | | | | | | | | 159: | | | | | | | | |  Finchford-------| 0-8 |Loamy sand, |SM |A-2-4, A-3 | 0 | 0 |90-95 |85-95 |50-60  | | sandy loam, | | | | | | |  | | sand | | | | | | |  | 8-18 |Loamy sand, |SM |A-2-4, A-3 | 0 | 0 |90-95 |85-95 |50-60  | | sandy loam, | | | | | | |  | | sand | | | | | | |  | 18-30 |Sand, loamy |SP-SM |A-1-b | 0 | 0 |90-95 |85-95 |25-40  | | sand, loamy | | | | | | |  | | coarse sand, | | | | | | |  | | coarse sand | | | | | | |  | 30-55 |Gravelly coarse|SW, SW-SM |A-1 | 0 | 0-5 |50-75 |50-75 |20-35  | | sand, gravelly| | | | | | |  | | sand, sand, | | | | | | |  | | coarse sand | | | | | | |  | 55-70 |Coarse sand, |SW, SW-SM |A-1 | 0 | 0-5 |50-75 |50-75 |20-35  | | gravelly | | | | | | |  | | coarse sand, | | | | | | |  | | gravelly sand,| | | | | | |  | | sand | | | | | | |  | 70-80 |Gravelly coarse|SW, SW-SM |A-1 | 0 | 0-5 |50-75 |50-75 |20-35  | | sand, gravelly| | | | | | |  | | sand, sand, | | | | | | |  | | coarse sand | | | | | | |  | | | | | | | | | 
Table 18.--Engineering Index Properties--Continued _______________________________________________________________________________________________________

 | | | Classification | Fragments | Percentage pass Map symbol | Depth | USDA texture |___________________________|_____________| sieve number- and | | | | | >10 | 3-10 |___________________ soil name | | | Unified | AASHTO |inches|inches| 4 | 10 | 40 _______________________________________________________________________________________________________ | In | | | | Pct | Pct | | |  | | | | | | | | | 159C: | | | | | | | | |  Finchford-------| 0-8 |Loamy sand, |SM |A-2-4, A-3 | 0 | 0 |90-95 |85-95 |50-60  | | sandy loam, | | | | | | |  | | sand | | | | | | |  | 8-15 |Loamy sand, |SM |A-2-4, A-3 | 0 | 0 |90-95 |85-95 |50-60  | | sandy loam, | | | | | | |  | | sand | | | | | | |  | 15-26 |Sand, loamy |SP-SM |A-1-b | 0 | 0 |90-95 |85-95 |25-40  | | sand, loamy | | | | | | |  | | coarse sand, | | | | | | |  | | coarse sand | | | | | | |  | 26-50 |Gravelly coarse|SW, SW-SM |A-1 | 0 | 0-5 |50-75 |50-75 |20-35  | | sand, gravelly| | | | | | |  | | sand, sand, | | | | | | |  | | coarse sand | | | | | | |  | 50-65 |Coarse sand, |SW, SW-SM |A-1 | 0 | 0-5 |50-75 |50-75 |20-35  | | gravelly | | | | | | |  | | coarse sand, | | | | | | |  | | gravelly sand,| | | | | | |  | | sand | | | | | | |  | 65-80 |Gravelly coarse|SW, SW-SM |A-1 | 0 | 0-5 |50-75 |50-75 |20-35  | | sand, gravelly| | | | | | |  | | sand, sand, | | | | | | |  | | coarse sand | | | | | | |  | | | | | | | | | 171B: | | | | | | | | |  Bassett---------| 0-8 |Silt loam, loam|CL, CL-ML |A-4, A-6 | 0 | 0-5 |95-100|95-100|85-95  | 8-10 |Silt loam, loam|CL |A-4, A-6 | 0 | 0-5 |95-100|95-100|85-95  | 10-14 |Loam |CL |A-4, A-6 | 0 | 0-5 |95-100|95-100|85-95  | 14-43 |Sandy clay |CL |A-6 | 0 | 2-5 |90-95 |85-95 |80-90  | | loam, clay | | | | | | |  | | loam, loam | | | | | | |  | 43-59 |Loam |CL |A-6 | 0 | 2-5 |90-95 |85-95 |80-90  | 59-73 |Loam |CL |A-6 | 0 | 2-5 |90-95 |85-95 |80-90  | | | | | | | | | 
Table 18.--Engineering Index Properties--Continued _______________________________________________________________________________________________________

 | | | Classification | Fragments | Percentage pass Map symbol | Depth | USDA texture |___________________________|_____________| sieve number- and | | | | | >10 | 3-10 |___________________ soil name | | | Unified | AASHTO |inches|inches| 4 | 10 | 40 _______________________________________________________________________________________________________ | In | | | | Pct | Pct | | |  | | | | | | | | | 175: | | | | | | | | |  Dickinson-------| 0-9 |Loam, sandy |SM, SC, SC-SM|A-4, A-2 | 0 | 0 | 100 | 100 |85-95  | | loam, fine | | | | | | |  | | sandy loam | | | | | | |  | 9-18 |Loam, sandy |SM, SC, SC-SM|A-4 | 0 | 0 | 100 | 100 |85-95  | | loam, fine | | | | | | |  | | sandy loam | | | | | | |  | 18-30 |Sandy loam, |SM, SC, SC-SM|A-4 | 0 | 0 | 100 | 100 |85-95  | | fine sandy | | | | | | |  | | loam | | | | | | |  | 30-36 |Sand, fine |SM, SC-SM |A-2-4, A-3 | 0 | 0 | 100 | 100 |80-95  | | sand, loamy | | | | | | |  | | fine sand, | | | | | | |  | | loamy sand | | | | | | |  | 36-60 |Fine sand, |SM |A-3, A-2 | 0 | 0 | 100 | 100 |70-90  | | loamy fine | | | | | | |  | | sand, loamy | | | | | | |  | | sand, sand | | | | | | |  | | | | | | | | | 175B: | | | | | | | | |  Dickinson-------| 0-9 |Loam, sandy |SM, SC, SC-SM|A-4, A-2 | 0 | 0 | 100 | 100 |85-95  | | loam, fine | | | | | | |  | | sandy loam | | | | | | |  | 9-18 |Loam, sandy |SM, SC, SC-SM|A-4 | 0 | 0 | 100 | 100 |85-95  | | loam, fine | | | | | | |  | | sandy loam | | | | | | |  | 18-30 |Sandy loam, |SM, SC, SC-SM|A-4 | 0 | 0 | 100 | 100 |85-95  | | fine sandy | | | | | | |  | | loam | | | | | | |  | 30-36 |Loamy sand, |SM, SC-SM |A-2-4, A-3 | 0 | 0 | 100 | 100 |80-95  | | sand, fine | | | | | | |  | | sand, loamy | | | | | | |  | | fine sand | | | | | | |  | 36-60 |Fine sand, |SM |A-3, A-2 | 0 | 0 | 100 | 100 |70-90  | | loamy fine | | | | | | |  | | sand, loamy | | | | | | |  | | sand, sand | | | | | | |  | | | | | | | | | 
Table 18.--Engineering Index Properties--Continued _______________________________________________________________________________________________________

 | | | Classification | Fragments | Percentage pass Map symbol | Depth | USDA texture |___________________________|_____________| sieve number- and | | | | | >10 | 3-10 |___________________ soil name | | | Unified | AASHTO |inches|inches| 4 | 10 | 40 _______________________________________________________________________________________________________ | In | | | | Pct | Pct | | |  | | | | | | | | | 177: | | | | | | | | |  Saude-----------| 0-7 |Loam |CL |A-6 | 0 | 0 | 100 |90-100|70-90  | 7-13 |Loam |CL |A-6 | 0 | 0 | 100 |90-100|70-90  | 13-16 |Loam |CL, CL-ML, |A-4, A-6 | 0 | 0-3 |90-95 |90-95 |70-90  | | | SC-SM | | | | | |  | 16-24 |Loam |CL, CL-ML, |A-4, A-6 | 0 | 0-3 |90-95 |90-95 |70-90  | | | SC-SM | | | | | |  | 24-28 |Sandy loam |CL, SC, |A-4, A-6 | 0 | 0-3 |90-95 |90-95 |60-85  | | | CL-ML, SC-SM| | | | | |  | 28-36 |Loamy sand |SW, SM |A-1-b | 0 | 0-3 |85-95 |85-95 |20-40  | 36-60 |Sand, loamy |SW, SM, GP, |A-1-b | 0 | 2-10 |50-90 |50-85 |15-35  | | sand, gravelly| GM | | | | | |  | | coarse sand | | | | | | |  | | | | | | | | | 177B: | | | | | | | | |  Saude-----------| 0-7 |Loam |CL |A-6 | 0 | 0 | 100 |90-100|70-90  | 7-13 |Loam |CL |A-6 | 0 | 0 | 100 |90-100|70-90  | 13-16 |Loam |CL, CL-ML, |A-4, A-6 | 0 | 0-3 |90-95 |90-95 |70-90  | | | SC-SM | | | | | |  | 16-24 |Loam |CL, CL-ML, |A-4, A-6 | 0 | 0-3 |90-95 |90-95 |70-90  | | | SC-SM | | | | | |  | 24-28 |Sandy loam |CL, SC, |A-4, A-6 | 0 | 0-3 |90-95 |90-95 |60-85  | | | CL-ML, SC-SM| | | | | |  | 28-36 |Loamy sand |SW, SM |A-1-b | 0 | 0-3 |85-95 |85-95 |20-40  | 36-60 |Sand, loamy |SW, SM, GP, |A-1-b | 0 | 2-10 |50-90 |50-85 |15-35  | | sand, gravelly| GM | | | | | |  | | coarse sand | | | | | | |  | | | | | | | | | 178: | | | | | | | | |  Waukee----------| 0-8 |Silt loam, loam|CL |A-6 | 0 | 0 | 100 |90-100|70-90  | 8-16 |Silt loam, loam|CL |A-6 | 0 | 0 | 100 |90-100|70-90  | 16-20 |Loam, sandy |CL, SC-SM, |A-6, A-4 | 0 | 0-3 |90-95 |90-95 |65-85  | | clay loam | SC, CL-ML | | | | | |  | 20-35 |Loam, sandy |CL, SC-SM, |A-6, A-4 | 0 | 0-3 |90-95 |90-95 |65-85  | | clay loam | SC, CL-ML | | | | | |  | 35-44 |Gravelly loamy |SW, SM, |A-1-b | 0-5 | 0-10 |60-90 |60-85 |20-40  | | coarse sand | SP-SM, SP | | | | | |  | 44-66 |Gravelly loamy |SW, SM, |A-1-b | 0-5 | 0-10 |60-90 |60-85 |20-40  | | coarse sand, | SP-SM, SP | | | | | |  | | gravelly sand | | | | | | |  | | | | | | | | | 
Table 18.--Engineering Index Properties--Continued _______________________________________________________________________________________________________

 | | | Classification | Fragments | Percentage pass Map symbol | Depth | USDA texture |___________________________|_____________| sieve number- and | | | | | >10 | 3-10 |___________________ soil name | | | Unified | AASHTO |inches|inches| 4 | 10 | 40 _______________________________________________________________________________________________________ | In | | | | Pct | Pct | | |  | | | | | | | | | 178B: | | | | | | | | |  Waukee----------| 0-8 |Silt loam, loam|CL |A-6 | 0 | 0 | 100 |90-100|70-90  | 8-16 |Silt loam, loam|CL |A-6 | 0 | 0 | 100 |90-100|70-90  | 16-20 |Loam, sandy |CL, SC-SM, |A-6, A-4 | 0 | 0-3 |90-95 |90-95 |65-85  | | clay loam | SC, CL-ML | | | | | |  | 20-35 |Sandy clay |CL, SC-SM, |A-6, A-4 | 0 | 0-3 |90-95 |90-95 |65-85  | | loam, loam | SC, CL-ML | | | | | |  | 35-44 |Gravelly loamy |SW, SM, |A-1-b | 0-5 | 0-10 |60-90 |60-85 |20-40  | | coarse sand | SP-SM, SP | | | | | |  | 44-66 |Gravelly loamy |SW, SM, |A-1-b | 0-5 | 0-10 |60-90 |60-85 |20-40  | | coarse sand, | SP-SM, SP | | | | | |  | | gravelly sand | | | | | | |  | | | | | | | | | 184: | | | | | | | | |  Klinger---------| 0-9 |Silt loam, |CL |A-7-6 | 0 | 0 | 100 | 100 | 100  | | silty clay | | | | | | |  | | loam | | | | | | |  | 9-13 |Silt loam, |CL |A-7-6 | 0 | 0 | 100 | 100 | 100  | | silty clay | | | | | | |  | | loam | | | | | | |  | 13-19 |Silty clay loam|CL |A-7-6 | 0 | 0 | 100 | 100 | 100  | 19-31 |Silty clay loam|CL |A-7-6 | 0 | 0 | 100 | 100 | 100  | 31-40 |Clay loam, loam|CL |A-6 | 0 | 0-5 |90-95 |85-95 |75-85  | 40-46 |Loam, clay loam|CL |A-6 | 0 | 0-5 |90-95 |85-95 |75-85  | 46-64 |Loam |CL |A-6 | 0 | 0-5 |90-95 |85-95 |75-85  | | | | | | | | | 198B: | | | | | | | | |  Floyd-----------| 0-8 |Clay loam, loam|OL, ML, CL |A-4, A-6 | 0 | 0 | 100 | 100 |80-90  | 8-24 |Clay loam, loam|OL, ML, CL |A-4, A-6 | 0 | 0 | 100 | 100 |80-90  | 24-33 |Loam, sandy |CL |A-6 | 0 | 0-5 |90-95 |85-95 |50-70  | | clay loam | | | | | | |  | 33-41 |Sandy loam, |SM, SC-SM |A-2-4 | 0 | 0-5 |90-95 |85-95 |50-70  | | sandy clay | | | | | | |  | | loam, loam | | | | | | |  | 41-50 |Clay loam, loam|CL |A-6 | 0 | 0-5 |90-95 |85-95 |80-90  | 50-60 |Clay loam, loam|CL |A-6 | 0 | 0-5 |90-95 |85-95 |80-90  | | | | | | | | | 
Table 18.--Engineering Index Properties--Continued _______________________________________________________________________________________________________

 | | | Classification | Fragments | Percentage pass Map symbol | Depth | USDA texture |___________________________|_____________| sieve number- and | | | | | >10 | 3-10 |___________________ soil name | | | Unified | AASHTO |inches|inches| 4 | 10 | 40 _______________________________________________________________________________________________________ | In | | | | Pct | Pct | | |  | | | | | | | | | 213B: | | | | | | | | |  Rockton, 30 to | | | | | | | | |  40 inches to | | | | | | | | |  limestone------| 0-10 |Silt loam, loam|ML, CL-ML, CL|A-4 | 0 | 0 |90-100|90-100|85-95  | 10-15 |Silt loam, loam|ML, CL-ML, CL|A-4 | 0 | 0 |90-100|90-100|85-95  | 15-21 |Sandy clay |CL, SC |A-6, A-7 | 0 | 0 |90-100|90-100|75-90  | | loam, clay | | | | | | |  | | loam, loam | | | | | | |  | 21-30 |Loam, clay |CL, SC |A-6, A-7 | 0 | 0 |90-100|90-100|75-90  | | loam, sandy | | | | | | |  | | clay loam | | | | | | |  | 30-35 |Silty clay, |CH, CL |A-7-6 | 0 | 0-2 |90-100|90-100|90-95  | | silty clay | | | | | | |  | | loam, clay | | | | | | |  | 35-80 |Bedrock | --- | --- | 0 | 0 | --- | --- | ---  | | | | | | | | | 221: | | | | | | | | |  Klossner--------| 0-10 |Muck |PT |A-8 | 0 | 0 | --- | 100 | ---  | 10-26 |Muck |PT |A-8 | 0 | 0 | --- | 100 | ---  | 26-36 |Mucky clay |CL-ML, CL |A-4, A-6 | 0 | 0 | 100 | 100 |95-10 | | loam, mucky | | | | | | |  | | silty clay | | | | | | |  | | loam | | | | | | |  | 36-48 |Silty clay loam|CL-ML, CL |A-4, A-6 | 0 | 0 | 100 | 100 |95-10 | 48-65 |Clay loam, loam|CL-ML, CL |A-4, A-6 | 0 | 0 |90-100|80-100|80-95  | 65-80 |Clay loam, loam|CL-ML, CL |A-4, A-6 | 0 | 0 |90-100|80-100|80-95  | | | | | | | | | 284: | | | | | | | | |  Flagler---------| 0-8 |Sandy loam, |SC, SC-SM |A-2-4, A-4 | 0 | 0 |95-100|90-95 |60-70  | | fine sandy | | | | | | |  | | loam | | | | | | |  | 8-15 |Sandy loam, |SC, SC-SM |A-2-4, A-4 | 0 | 0 |95-100|90-95 |60-70  | | fine sandy | | | | | | |  | | loam | | | | | | |  | 15-22 |Sandy loam |SC, SC-SM |A-2-4, A-4 | 0 | 0 |95-100|90-95 |50-70  | 22-33 |Sandy loam |SC, SC-SM |A-2-4, A-4 | 0 | 0 |95-100|90-95 |50-70  | 33-65 |Sand, loamy |SP-SM, SW, |A-1-b | 0 | 0-2 |85-95 |85-95 |20-40  | | sand | SP, SW-SM | | | | | |  | | | | | | | | | 
Table 18.--Engineering Index Properties--Continued _______________________________________________________________________________________________________

 | | | Classification | Fragments | Percentage pass Map symbol | Depth | USDA texture |___________________________|_____________| sieve number- and | | | | | >10 | 3-10 |___________________ soil name | | | Unified | AASHTO |inches|inches| 4 | 10 | 40 _______________________________________________________________________________________________________ | In | | | | Pct | Pct | | |  | | | | | | | | | 284B: | | | | | | | | |  Flagler---------| 0-8 |Sandy loam, |SC, SC-SM |A-2-4, A-4 | 0 | 0 |95-100|90-95 |60-70  | | fine sandy | | | | | | |  | | loam | | | | | | |  | 8-15 |Sandy loam, |SC, SC-SM |A-2-4, A-4 | 0 | 0 |95-100|90-95 |60-70  | | fine sandy | | | | | | |  | | loam | | | | | | |  | 15-22 |Sandy loam |SC, SC-SM |A-2-4, A-4 | 0 | 0 |95-100|90-95 |50-70  | 22-33 |Sandy loam |SC, SC-SM |A-2-4, A-4 | 0 | 0 |95-100|90-95 |50-70  | 33-65 |Sand, loamy |SP-SM, SW, |A-1-b | 0 | 0-2 |85-95 |85-95 |20-40  | | sand | SP, SW-SM | | | | | |  | | | | | | | | | 290: | | | | | | | | |  Dells-----------| 0-7 |Silt loam |CL |A-4 | 0 | 0 | 100 | 100 |95-10 | 7-16 |Silt loam |CL |A-4 | 0 | 0 | 100 | 100 |95-10 | 16-28 |Silt loam, |CL |A-6, A-7 | 0 | 0 | 100 | 100 |90-10 | | silty clay | | | | | | |  | | loam | | | | | | |  | 28-33 |Loam, sandy |CL, CL-ML, |A-4, A-6 | 0 | 0 | 100 | 100 |60-10 | | loam, sandy | SC, SC-SM | | | | | |  | | clay loam | | | | | | |  | 33-60 |Loamy sand, |SP-SM, SM, SP|A-3, A-2, A-1| 0 | 0 |90-100|90-100|45-10 | | sand | | | | | | |  | | | | | | | | | 354. | | | | | | | | |  Aquolls, ponded | | | | | | | | |  | | | | | | | | | 377B: | | | | | | | | |  Dinsdale--------| 0-7 |Silt loam, |CL |A-6, A-7-6 | 0 | 0 | 100 | 100 | 100  | | silty clay | | | | | | |  | | loam | | | | | | |  | 7-15 |Silt loam, |CL |A-6, A-7-6 | 0 | 0 | 100 | 100 | 100  | | silty clay | | | | | | |  | | loam | | | | | | |  | 15-21 |Silty clay loam|CL |A-7-6 | 0 | 0 | 100 | 100 | 100  | 21-36 |Silty clay loam|CL |A-7-6 | 0 | 0 | 100 | 100 | 100  | 36-50 |Clay loam, loam|CL |A-6 | 0 | 0-5 |90-95 |90-95 |75-85  | 50-80 |Clay loam, loam|CL |A-6 | 0 | 0-5 |90-95 |90-95 |75-85  | | | | | | | | | 
Table 18.--Engineering Index Properties--Continued _______________________________________________________________________________________________________

 | | | Classification | Fragments | Percentage pass Map symbol | Depth | USDA texture |___________________________|_____________| sieve number- and | | | | | >10 | 3-10 |___________________ soil name | | | Unified | AASHTO |inches|inches| 4 | 10 | 40 _______________________________________________________________________________________________________ | In | | | | Pct | Pct | | |  | | | | | | | | | 377C: | | | | | | | | |  Dinsdale--------| 0-7 |Silt loam, |CL |A-6, A-7-6 | 0 | 0 | 100 | 100 | 100  | | silty clay | | | | | | |  | | loam | | | | | | |  | 7-15 |Silt loam, |CL |A-6, A-7-6 | 0 | 0 | 100 | 100 | 100  | | silty clay | | | | | | |  | | loam | | | | | | |  | 15-21 |Silty clay loam|CL |A-7-6 | 0 | 0 | 100 | 100 | 100  | 21-36 |Silty clay loam|CL |A-7-6 | 0 | 0 | 100 | 100 | 100  | 36-50 |Clay loam, loam|CL |A-6 | 0 | 0-5 |90-95 |90-95 |75-85  | 50-80 |Clay loam, loam|CL |A-6 | 0 | 0-5 |90-95 |90-95 |75-85  | | | | | | | | | 377C2: | | | | | | | | |  Dinsdale, | | | | | | | | |  moderately | | | | | | | | |  eroded---------| 0-8 |Silt loam, |CL |A-6, A-7-6 | 0 | 0 | 100 | 100 | 100  | | silty clay | | | | | | |  | | loam | | | | | | |  | 8-25 |Silty clay loam|CL |A-7-6 | 0 | 0 | 100 | 100 | 100  | 25-40 |Clay loam, loam|CL |A-6 | 0 | 0-5 |90-95 |90-95 |75-85  | 40-80 |Clay loam, loam|CL |A-6 | 0 | 0-5 |90-95 |90-95 |75-85  | | | | | | | | | 382: | | | | | | | | |  Maxfield--------| 0-7 |Silty clay loam|CL, CH |A-7-6 | 0 | 0 | 100 | 100 | 100  | 7-17 |Silty clay loam|CL, CH |A-7-6 | 0 | 0 | 100 | 100 | 100  | 17-23 |Silty clay loam|CH, CL |A-7-6 | 0 | 0 | 100 | 100 | 100  | 23-32 |Silt loam |CH, CL |A-7-6 | 0 | 0 | 100 | 100 | 100  | 32-45 |Loam |CL |A-6 | 0 | 0-5 |90-95 |90-95 |75-85  | 45-66 |Loam |CL |A-6 | 0 | 0-5 |90-95 |90-95 |75-85  | | | | | | | | | 
Table 18.--Engineering Index Properties--Continued _______________________________________________________________________________________________________

 | | | Classification | Fragments | Percentage pass Map symbol | Depth | USDA texture |___________________________|_____________| sieve number- and | | | | | >10 | 3-10 |___________________ soil name | | | Unified | AASHTO |inches|inches| 4 | 10 | 40 _______________________________________________________________________________________________________ | In | | | | Pct | Pct | | |  | | | | | | | | | 391B: | | | | | | | | |  Clyde-----------| 0-8 |Loam, silty |OL, MH, ML, |A-7 | 0 | 0-5 |95-100|95-100|80-90  | | clay loam, | OH | | | | | |  | | clay loam | | | | | | |  | 8-17 |Silty clay |OL, MH, ML, |A-7 | 0 | 0-5 |95-100|95-100|80-90  | | loam, clay | OH | | | | | |  | | loam | | | | | | |  | 17-23 |Silty clay |OL, MH, ML, |A-7 | 0 | 0-5 |95-100|95-100|80-90  | | loam, clay | OH | | | | | |  | | loam | | | | | | |  | 23-41 |Silty clay |CL, ML |A-6, A-7 | 0 | 0-5 |95-100|90-95 |75-90  | | loam, clay | | | | | | |  | | loam | | | | | | |  | 41-44 |Sandy loam, |SM, SC-SM |A-2-4 | 0 | 2-5 |85-95 |85-95 |50-80  | | loam | | | | | | |  | 44-54 |Loam, clay loam|CL, SC |A-6 | 0-5 | 2-5 |90-95 |85-95 |75-90  | 54-66 |Loam, clay loam|CL, SC |A-6 | 0-5 | 2-5 |90-95 |85-95 |75-90  | | | | | | | | |  Floyd-----------| 0-8 |Clay loam, loam|OL, ML, CL |A-4, A-6 | 0 | 0 | 100 | 100 |80-90  | 8-24 |Clay loam, loam|OL, ML, CL |A-4, A-6 | 0 | 0 | 100 | 100 |80-90  | 24-33 |Loam, sandy |CL |A-6 | 0 | 0-5 |90-95 |85-95 |50-70  | | clay loam | | | | | | |  | 33-41 |Sandy loam, |SM, SC-SM |A-2-4 | 0 | 0-5 |90-95 |85-95 |50-70  | | sandy clay | | | | | | |  | | loam, loam | | | | | | |  | 41-50 |Clay loam, loam|CL |A-6 | 0 | 0-5 |90-95 |85-95 |80-90  | 50-60 |Clay loam, loam|CL |A-6 | 0 | 0-5 |90-95 |85-95 |80-90  | | | | | | | | | 395B: | | | | | | | | |  Marquis---------| 0-8 |Loam |CL |A-6 | 0 | 0-5 |95-100|95-100|85-95  | 8-19 |Loam |CL |A-6 | 0 | 0-5 |95-100|95-100|85-95  | 19-24 |Loam |CL |A-6 | 0 | 0-5 |95-100|95-100|85-95  | 24-54 |Loam |CL |A-6 | 0 | 0-5 |90-95 |90-95 |80-90  | 54-80 |Loam |CL |A-6 | 0 | 0-5 |90-95 |90-95 |80-90  | | | | | | | | | 398: | | | | | | | | |  Tripoli---------| 0-9 |Silty clay |CL |A-6, A-7 | 0 | 0 |95-100|95-100|85-95  | | loam, clay | | | | | | |  | | loam | | | | | | |  | 9-18 |Silty clay |CL |A-6, A-7 | 0 | 0 |95-100|95-100|85-95  | | loam, clay | | | | | | |  | | loam | | | | | | |  | 18-24 |Clay loam |CL |A-6 | 0 | 0-5 |90-95 |90-95 |75-85  | 24-38 |Loam |CL |A-6 | 0 | 0-5 |90-95 |90-95 |75-85  | 38-66 |Clay loam, loam|CL, SC |A-6 | 0 | 0-5 |90-95 |90-95 |75-85  | | | | | | | | | 
Table 18.--Engineering Index Properties--Continued _______________________________________________________________________________________________________

 | | | Classification | Fragments | Percentage pass Map symbol | Depth | USDA texture |___________________________|_____________| sieve number- and | | | | | >10 | 3-10 |___________________ soil name | | | Unified | AASHTO |inches|inches| 4 | 10 | 40 _______________________________________________________________________________________________________ | In | | | | Pct | Pct | | |  | | | | | | | | | 399: | | | | | | | | |  Readlyn---------| 0-7 |Clay loam, loam|CL |A-6 | 0 | 0 |95-100|95-100|85-95  | 7-17 |Clay loam, loam|CL |A-6 | 0 | 0 |95-100|95-100|85-95  | 17-43 |Loam |CL, SC |A-6 | 0 | 0-5 |90-95 |90-95 |75-85  | 43-52 |Loam |CL, SC |A-6 | 0 | 0-5 |90-95 |90-95 |75-85  | 52-60 |Loam |CL, SC |A-6 | 0 | 0-5 |90-95 |90-95 |75-85  | | | | | | | | | 408B: | | | | | | | | |  Olin------------| 0-7 |Sandy loam, |SC-SM, SC |A-2, A-4 | 0 | 0 | 100 |95-100|85-95  | | fine sandy | | | | | | |  | | loam | | | | | | |  | 7-23 |Fine sandy |SC-SM, SC |A-2, A-4 | 0 | 0 | 100 |95-100|85-95  | | loam, sandy | | | | | | |  | | loam | | | | | | |  | 23-31 |Sandy loam |SC-SM, SC |A-2, A-4 | 0 | 0 | 100 |95-100|85-95  | 31-52 |Sandy clay |CL |A-6 | 0 | 0-5 |90-95 |90-95 |80-90  | | loam, clay | | | | | | |  | | loam, loam | | | | | | |  | 52-80 |Clay loam, loam|CL |A-6 | 0 | 0-5 |90-95 |90-95 |80-90  | | | | | | | | | 408C: | | | | | | | | |  Olin------------| 0-7 |Sandy loam, |SC-SM, SC |A-2, A-4 | 0 | 0 | 100 |95-100|85-95  | | fine sandy | | | | | | |  | | loam | | | | | | |  | 7-23 |Fine sandy |SC-SM, SC |A-2, A-4 | 0 | 0 | 100 |95-100|85-95  | | loam, sandy | | | | | | |  | | loam | | | | | | |  | 23-31 |Sandy loam |SC-SM, SC |A-2, A-4 | 0 | 0 | 100 |95-100|85-95  | 31-52 |Sandy clay |CL |A-6 | 0 | 0-5 |90-95 |90-95 |80-90  | | loam, clay | | | | | | |  | | loam, loam | | | | | | |  | 52-80 |Clay loam, loam|CL |A-6 | 0 | 0-5 |90-95 |90-95 |80-90  | | | | | | | | | 412C: | | | | | | | | |  Emeline---------| 0-9 |Silt loam, clay|CL |A-6 | 0 | 0-10 |85-100|85-100|85-10 | | loam, loam | | | | | | |  | 9-80 |Bedrock | --- | --- | 0 | 0 | --- | --- | ---  | | | | | | | | | 426B: | | | | | | | | |  Aredale---------| 0-7 |Loam |CL, CL-ML |A-4, A-6 | 0 | 0 |95-100|95-100|85-95  | 7-19 |Loam |CL, CL-ML |A-4, A-6 | 0 | 0 |95-100|95-100|85-95  | 19-33 |Clay loam, loam|CL |A-6 | 0 | 0-5 |95-100|95-100|80-90  | 33-55 |Sandy loam |SC, SM, SC-SM|A-2-4, A-4 | 0 | 0-5 |95-100|95-100|70-90  | 55-70 |Loam |CL |A-6 | 0 | 0-5 |90-95 |85-95 |80-90  | | | | | | | | | 
Table 18.--Engineering Index Properties--Continued _______________________________________________________________________________________________________

 | | | Classification | Fragments | Percentage pass Map symbol | Depth | USDA texture |___________________________|_____________| sieve number- and | | | | | >10 | 3-10 |___________________ soil name | | | Unified | AASHTO |inches|inches| 4 | 10 | 40 _______________________________________________________________________________________________________ | In | | | | Pct | Pct | | |  | | | | | | | | | 426C: | | | | | | | | |  Aredale---------| 0-7 |Loam |CL, CL-ML |A-6, A-4 | 0 | 0 |95-100|95-100|85-95  | 7-19 |Loam |CL, CL-ML |A-6, A-4 | 0 | 0 |95-100|95-100|85-95  | 19-33 |Clay loam, loam|CL |A-6 | 0 | 0-5 |95-100|95-100|80-90  | 33-55 |Sandy loam |SC, SM, SC-SM|A-2-4, A-4 | 0 | 0-5 |95-100|95-100|70-90  | 55-70 |Loam |CL |A-6 | 0 | 0-5 |90-95 |85-95 |80-90  | | | | | | | | | 426C2: | | | | | | | | |  Aredale, | | | | | | | | |  moderately | | | | | | | | |  eroded---------| 0-8 |Loam |CL, CL-ML |A-4, A-6 | 0 | 0 |95-100|95-100|85-95  | 8-32 |Clay loam, loam|CL |A-6 | 0 | 0-5 |95-100|95-100|80-90  | 32-50 |Sandy loam |SC, SM, SC-SM|A-2-4, A-4 | 0 | 0-5 |95-100|95-100|70-90  | 50-70 |Loam |CL |A-6 | 0 | 0-5 |90-95 |85-95 |80-90  | | | | | | | | | 468B: | | | | | | | | |  Dunkerton-------| 0-9 |Loamy fine |SC-SM, SC |A-2, A-4 | 0 | 0 | 100 |95-100|85-95  | | sand, loamy | | | | | | |  | | sand, fine | | | | | | |  | | sandy loam, | | | | | | |  | | sandy loam | | | | | | |  | 9-15 |Fine sandy |SC, SC-SM |A-2, A-4 | 0 | 0 | 100 |95-100|85-95  | | loam, loamy | | | | | | |  | | sand, loamy | | | | | | |  | | fine sand, | | | | | | |  | | sandy loam | | | | | | |  | 15-25 |Sandy loam, |SC-SM, SC |A-2, A-4 | 0 | 0 | 100 |95-100|85-95  | | sandy clay | | | | | | |  | | loam | | | | | | |  | 25-49 |Loam, clay loam|CL |A-6 | 0 | 0-5 |90-95 |85-95 |80-90  | 49-80 |Loam, clay loam|CL |A-6 | 0 | 0-5 |90-95 |85-95 |80-90  | | | | | | | | | 
Table 18.--Engineering Index Properties--Continued _______________________________________________________________________________________________________

 | | | Classification | Fragments | Percentage pass Map symbol | Depth | USDA texture |___________________________|_____________| sieve number- and | | | | | >10 | 3-10 |___________________ soil name | | | Unified | AASHTO |inches|inches| 4 | 10 | 40 _______________________________________________________________________________________________________ | In | | | | Pct | Pct | | |  | | | | | | | | | 468C: | | | | | | | | |  Dunkerton-------| 0-9 |Loamy fine |SC-SM, SC |A-2, A-4 | 0 | 0 | 100 |95-100|85-95  | | sand, loamy | | | | | | |  | | sand, fine | | | | | | |  | | sandy loam, | | | | | | |  | | sandy loam | | | | | | |  | 9-15 |Loamy fine |SC-SM, SC |A-2, A-4 | 0 | 0 | 100 |95-100|85-95  | | sand, loamy | | | | | | |  | | sand, fine | | | | | | |  | | sandy loam, | | | | | | |  | | sandy loam | | | | | | |  | 15-25 |Sandy loam, |SC-SM, SC |A-2, A-4 | 0 | 0 | 100 |95-100|85-95  | | sandy clay | | | | | | |  | | loam | | | | | | |  | 25-49 |Loam, clay loam|CL |A-6 | 0 | 0-5 |90-95 |85-95 |80-90  | 49-80 |Loam, clay loam|CL |A-6 | 0 | 0-5 |90-95 |85-95 |80-90  | | | | | | | | | 471: | | | | | | | | |  Oran------------| 0-8 |Silt loam, loam|CL, CL-ML |A-4, A-6 | 0 | 0 |95-100|95-100|85-95  | 8-14 |Silt loam, loam|CL, CL-ML |A-4, A-6 | 0 | 0 |95-100|95-100|85-95  | 14-19 |Loam |CL, CL-ML |A-4, A-6 | 0 | 0 |95-100|95-100|85-95  | 19-42 |Clay loam, |CL |A-6 | 0 | 0-5 |90-95 |85-90 |75-85  | | sandy clay | | | | | | |  | | loam, loam | | | | | | |  | 42-80 |Loam |CL |A-6 | 0 | 0-5 |90-95 |85-90 |75-85  | | | | | | | | | 485: | | | | | | | | |  Spillville, | | | | | | | | |  occasionally | | | | | | | | |  flooded--------| 0-8 |Loam |CL |A-6 | 0 | 0 | 100 |95-100|85-95  | 8-54 |Loam |CL |A-6 | 0 | 0 | 100 |95-100|85-95  | 54-60 |Sandy loam, |CL, CL-ML, |A-6, A-4 | 0 | 0 | 100 |95-100|80-90  | | sandy clay | SC-SM, SC | | | | | |  | | loam, loam | | | | | | |  | | | | | | | | | 585: | | | | | | | | |  Spillville, | | | | | | | | |  occasionally | | | | | | | | |  flooded--------| 0-8 |Loam |CL |A-6 | 0 | 0 | 100 |95-100|85-95  | 8-54 |Loam |CL |A-6 | 0 | 0 | 100 |95-100|85-95  | 54-60 |Sandy loam, |CL, CL-ML, |A-4, A-6 | 0 | 0 | 100 |95-100|80-90  | | sandy clay | SC-SM, SC | | | | | |  | | loam, loam | | | | | | |  | | | | | | | | | 
Table 18.--Engineering Index Properties--Continued _______________________________________________________________________________________________________

 | | | Classification | Fragments | Percentage pas Map symbol | Depth | USDA texture |___________________________|_____________| sieve number and | | | | | >10 | 3-10 |___________________ soil name | | | Unified | AASHTO |inches|inches| 4 | 10 | 40 _______________________________________________________________________________________________________ | In | | | | Pct | Pct | | |  | | | | | | | | | 585: | | | | | | | | |  Coland, | | | | | | | | |  occasionally | | | | | | | | |  flooded--------| 0-8 |Clay loam, |CL |A-7-6, A-6 | 0 | 0 | 100 | 100 |95-1 | | silty clay | | | | | | |  | | loam | | | | | | |  | 8-32 |Clay loam, |CL |A-7-6, A-6 | 0 | 0 | 100 | 100 |95-1 | | silty clay | | | | | | |  | | loam | | | | | | |  | 32-40 |Loam, clay loam|CL |A-7-6, A-6 | 0 | 0 | 100 | 100 |95-1 | 40-44 |Clay loam, |CL, SC, |A-4, A-6 | 0 | 0 | 100 |90-100|60-7 | | loam, sandy | CL-ML, SC-SM| | | | | |  | | loam | | | | | | |  | 44-52 |Sandy loam, |CL, SC, |A-4, A-6 | 0 | 0 | 100 |90-100|60-7 | | clay loam, | CL-ML, SC-SM| | | | | |  | | loam | | | | | | |  | 52-60 |Loam, clay |CL, SC, |A-4, A-6 | 0 | 0 | 100 |90-100|60-7 | | loam, sandy | CL-ML, SC-SM| | | | | |  | | loam | | | | | | |  | | | | | | | | | 626: | | | | | | | | |  Hayfield, 24 to | | | | | | | | |  40 inches to | | | | | | | | |  sand and gravel| 0-8 |Silt loam, loam|CL-ML, CL |A-6, A-4 | 0 | 0 | 100 | 100 |90-9 | 8-13 |Silt loam, loam|CL-ML, CL |A-6, A-4 | 0 | 0 | 100 | 100 |90-9 | 13-29 |Sandy clay |CL-ML, CL |A-4, A-6 | 0 | 0 |95-100|90-100|70-9 | | loam, clay | | | | | | |  | | loam, loam | | | | | | |  | 29-80 |Loamy sand, |SP, SP-SM |A-1-b | 0 | 0-3 |85-100|80-95 |25-5 | | sand, loamy | | | | | | |  | | coarse sand, | | | | | | |  | | coarse sand | | | | | | |  | | | | | | | | | 761: | | | | | | | | |  Franklin--------| 0-6 |Silt loam |CL-ML, CL |A-4, A-6 | 0 | 0 | 100 | 100 | 100  | 6-13 |Silt loam |CL-ML, CL |A-4, A-6 | 0 | 0 | 100 | 100 | 100  | 13-18 |Silty clay loam|CL |A-7-6 | 0 | 0 | 100 | 100 | 100  | 18-28 |Silty clay loam|CL |A-7-6 | 0 | 0 | 100 | 100 | 100  | 28-37 |Clay loam, loam|CL |A-6 | 0 | 0-5 |95-100|90-95 |75-8 | 37-46 |Loam, clay loam|CL |A-6 | 0 | 0-5 |95-100|90-95 |75-8 | 46-64 |Loam, clay loam|CL |A-6 | 0 | 0-5 |95-100|90-95 |75-8 | 64-74 |Clay loam, loam|CL |A-6 | 0 | 0-5 |95-100|90-95 |75-8 | | | | | | | | | 
Table 18.--Engineering Index Properties--Continued _______________________________________________________________________________________________________

 | | | Classification | Fragments | Percentage pass Map symbol | Depth | USDA texture |___________________________|_____________| sieve number- and | | | | | >10 | 3-10 |___________________ soil name | | | Unified | AASHTO |inches|inches| 4 | 10 | 40 _______________________________________________________________________________________________________ | In | | | | Pct | Pct | | |  | | | | | | | | | 771B: | | | | | | | | |  Waubeek---------| 0-7 |Silt loam |CL-ML, CL |A-6, A-4 | 0 | 0 | 100 | 100 | 100  | 7-13 |Silt loam |CL-ML, CL |A-4, A-6 | 0 | 0 | 100 | 100 | 100  | 13-29 |Silt loam, |CL |A-7-6 | 0 | 0 | 100 | 100 | 100  | | silty clay | | | | | | |  | | loam | | | | | | |  | 29-34 |Clay loam, loam|CL |A-6 | 0 | 0-5 |90-95 |85-95 |75-85  | 34-45 |Loam, clay loam|CL |A-6 | 0 | 0-5 |90-95 |85-95 |75-85  | 45-67 |Clay loam, loam|CL |A-6 | 0 | 0-5 |90-95 |85-95 |75-85  | | | | | | | | | 775B: | | | | | | | | |  Billett---------| 0-8 |Sandy loam, |SM, SC-SM, SC|A-2-4, A-4 | 0 | 0 | 100 |95-100|60-10 | | fine sandy | | | | | | |  | | loam | | | | | | |  | 8-13 |Fine sandy |SC-SM, SC |A-2-4, A-4, | 0 | 0 | 100 |95-100|60-10 | | loam, sandy | | A-6 | | | | |  | | loam | | | | | | |  | 13-28 |Fine sandy |SC-SM, SC |A-2-4, A-4, | 0 | 0 | 100 |95-100|60-10 | | loam, sandy | | A-6 | | | | |  | | loam | | | | | | |  | 28-41 |Loamy sand, |SM, SC-SM, SC|A-2-4, A-4, | 0 | 0 |95-100|85-100|75-90  | | fine sandy | | A-6 | | | | |  | | loam | | | | | | |  | 41-47 |Sandy loam, |SM, SC-SM, SC|A-2-4, A-4, | 0 | 0 |95-100|85-100|75-90  | | fine sandy | | A-6 | | | | |  | | loam | | | | | | |  | 47-52 |Loamy sand, |SM, SC-SM, |A-2, A-1-b, | 0 | 0-5 |85-100|80-100|20-75  | | fine sand, | SW-SM | A-3 | | | | |  | | loamy fine | | | | | | |  | | sand, sand | | | | | | |  | 52-60 |Gravelly sand, |SM, SP-SM |A-2, A-1-b, | 0 | 0-5 |85-100|75-100|20-75  | | sand, loamy | | A-3 | | | | |  | | sand, gravelly| | | | | | |  | | loamy sand | | | | | | |  | | | | | | | | | 
Table 18.--Engineering Index Properties--Continued _______________________________________________________________________________________________________

 | | | Classification | Fragments | Percentage pass Map symbol | Depth | USDA texture |___________________________|_____________| sieve number- and | | | | | >10 | 3-10 |___________________ soil name | | | Unified | AASHTO |inches|inches| 4 | 10 | 40 _______________________________________________________________________________________________________ | In | | | | Pct | Pct | | |  | | | | | | | | | 776C: | | | | | | | | |  Lilah-----------| 0-6 |Sandy loam |SC-SM, SC |A-2-4, A-4 | 0 | 0-5 |90-95 |85-95 |60-70  | 6-15 |Sandy loam, |SM, SC-SM, SC|A-2-4, A-1-b | 0 | 0-5 |80-95 |60-90 |40-60  | | gravelly sandy| | | | | | |  | | loam | | | | | | |  | 15-28 |Gravelly loamy |SW, SW-SM |A-1-b | 0 | 0-10 |70-90 |50-70 |30-50  | | sand, sand | | | | | | |  | 28-39 |Sand, gravelly |SW, SW-SM, |A-1-b | 0 | 0-5 |85-95 |85-95 |30-50  | | loamy sand | SP, SP-SM | | | | | |  | 39-60 |Sand, loamy |SP, SP-SM |A-1-b | 0 | 0-5 |80-100|80-100|30-50  | | sand | | | | | | |  | | | | | | | | | 777: | | | | | | | | |  Wapsie----------| 0-8 |Sandy clay |CL, ML, CL-ML|A-4 | 0 | 0 | 100 |90-100|70-90  | | loam, sandy | | | | | | |  | | loam, loam | | | | | | |  | 8-13 |Sandy clay |CL, ML, CL-ML|A-4 | 0 | 0 | 100 |90-100|70-90  | | loam, sandy | | | | | | |  | | loam, loam | | | | | | |  | 13-17 |Loam |CL, CL-ML, |A-4, A-6 | 0 | 0 |85-95 |80-95 |70-85  | | | SC-SM | | | | | |  | 17-27 |Sandy clay loam|CL, SC, |A-4, A-6 | 0 | 0 |85-95 |80-95 |70-85  | | | CL-ML, SC-SM| | | | | |  | 27-29 |Loam, sandy |CL, SC, |A-4, A-6 | 0 | 0 |85-95 |80-95 |70-85  | | loam | CL-ML, SC-SM| | | | | |  | 29-38 |Gravelly loamy |SW, SM, SP, |A-1-b | 0 | 0 |85-95 |80-95 |20-40  | | sand, sand, | SP-SM | | | | | |  | | gravelly sand | | | | | | |  | 38-60 |Sand, gravelly |SW, SM, SP, |A-1-b | 0 | 0 |60-90 |60-85 |20-40  | | loamy sand, | SP-SM | | | | | |  | | gravelly sand | | | | | | |  | | | | | | | | | 781B: | | | | | | | | |  Lourdes---------| 0-8 |Loam |CL, ML |A-6, A-7 | 0 | 0 |95-100|95-100|90-95  | 8-11 |Loam |CL |A-6 | 0 | 0 |95-100|95-100|80-90  | 11-15 |Clay loam |CL |A-6 | 0 | 0 |95-100|95-100|80-90  | 15-44 |Clay loam |CL |A-6 | 0 | 0-5 |90-95 |85-95 |80-90  | 44-51 |Clay loam |CL |A-6 | 0 | 0-5 |90-95 |85-95 |80-90  | 51-76 |Clay loam |CL |A-6 | 0 | 0-5 |90-95 |85-95 |80-90  | | | | | | | | | 
Table 18.--Engineering Index Properties--Continued _______________________________________________________________________________________________________

 | | | Classification | Fragments | Percentage pass Map symbol | Depth | USDA texture |___________________________|_____________| sieve number- and | | | | | >10 | 3-10 |___________________ soil name | | | Unified | AASHTO |inches|inches| 4 | 10 | 40 _______________________________________________________________________________________________________ | In | | | | Pct | Pct | | |  | | | | | | | | | 781C2: | | | | | | | | |  Lourdes, | | | | | | | | |  moderately | | | | | | | | |  eroded---------| 0-8 |Loam |CL, ML |A-6, A-7 | 0 | 0 |95-100|95-100|90-95  | 8-14 |Clay loam |CL |A-6 | 0 | 0-5 |90-95 |85-95 |80-90  | 14-42 |Clay loam |CL |A-6 | 0 | 0-5 |90-95 |85-95 |80-90  | 42-47 |Clay loam |CL |A-6 | 0 | 0-5 |90-95 |85-95 |80-90  | 47-76 |Clay loam |CL |A-6 | 0 | 0-5 |90-95 |85-95 |80-90  | | | | | | | | | 782B: | | | | | | | | |  Donnan----------| 0-8 |Silt loam, loam|CL, ML |A-4, A-6 | 0 | 0 | 100 | 100 |85-95  | 8-13 |Silt loam, loam|ML, CL |A-4, A-6 | 0 | 0 | 100 | 100 |85-95  | 13-18 |Loam, silt loam|ML, CL |A-4, A-6 | 0 | 0 | 100 | 100 |85-95  | 18-24 |Silty clay |CL |A-6 | 0 | 0-5 |95-100|90-95 |80-90  | | loam, loam, | | | | | | |  | | clay loam | | | | | | |  | 24-48 |Silty clay |CH |A-7-6 | 0 | 0-3 |95-100|90-95 |85-95  | 48-60 |Clay loam, loam|CL |A-6, A-7 | 0 | 0-5 |95-100|85-95 |80-90  | | | | | | | | | 798: | | | | | | | | |  Protivin--------| 0-8 |Clay loam, loam|CL |A-7, A-6 | 0 | 0 |95-100|95-100|85-95  | 8-15 |Clay loam, loam|CL |A-7, A-6 | 0 | 0 |95-100|95-100|85-95  | 15-19 |Loam, clay loam|CL |A-6 | 0 | 0-5 |90-95 |85-95 |75-85  | 19-23 |Loam, clay loam|CL |A-6 | 0 | 0-5 |90-95 |85-95 |75-85  | 23-45 |Clay loam |CL |A-6 | 0 | 0-5 |90-95 |85-95 |75-85  | 45-60 |Clay loam |CL |A-6 | 0 | 2-5 |90-95 |85-95 |75-85  | | | | | | | | | 809B: | | | | | | | | |  Bertram---------| 0-8 |Sandy loam |SC-SM, SC, SM|A-2, A-4 | 0 | 0 | 100 |95-100|85-95  | 8-17 |Sandy loam |SC-SM, SC, SM|A-2, A-4 | 0 | 0 | 100 |95-100|85-95  | 17-30 |Sandy loam |SC-SM, SC |A-2-4, A-4 | 0 | 0 | 100 |95-100|80-90  | 30-34 |Clay loam, |SC, CL |A-6, A-7 | 0 | 0 |85-95 |85-95 |70-80  | | sandy clay | | | | | | |  | | loam | | | | | | |  | 34-36 |Loamy sand |SC |A-2-6, A-2-7 | 0 | 0 |85-95 |85-95 |30-70  | 36-80 |Bedrock | --- | --- | 0 | 0 | --- | --- | ---  | | | | | | | | | 
Table 18.--Engineering Index Properties--Continued _______________________________________________________________________________________________________

 | | | Classification | Fragments | Percentage pass Map symbol | Depth | USDA texture |___________________________|_____________| sieve number- and | | | | | >10 | 3-10 |___________________ soil name | | | Unified | AASHTO |inches|inches| 4 | 10 | 40 _______________________________________________________________________________________________________ | In | | | | Pct | Pct | | |  | | | | | | | | | 877B: | | | | | | | | |  Dinsmore--------| 0-8 |Silt loam, |ML, CL |A-6, A-7-6 | 0 | 0 | 100 | 100 | 100  | | silty clay | | | | | | |  | | loam | | | | | | |  | 8-16 |Silt loam, |ML, CL |A-6, A-7-6 | 0 | 0 | 100 | 100 | 100  | | silty clay | | | | | | |  | | loam | | | | | | |  | 16-48 |Silt loam, |CL |A-6, A-7-6 | 0 | 0 | 100 | 100 | 100  | | silty clay | | | | | | |  | | loam | | | | | | |  | 48-80 |Clay loam, loam|CL |A-6 | 0 | 0-5 |90-95 |85-95 |75-85  | | | | | | | | | 884: | | | | | | | | |  Klingmore-------| 0-8 |Silt loam, |CL |A-7-6 | 0 | 0 | 100 | 100 | 100  | | silty clay | | | | | | |  | | loam | | | | | | |  | 8-19 |Silt loam, |CL |A-7-6 | 0 | 0 | 100 | 100 | 100  | | silty clay | | | | | | |  | | loam | | | | | | |  | 19-56 |Silt loam, |CL |A-7-6 | 0 | 0 | 100 | 100 | 100  | | silty clay | | | | | | |  | | loam | | | | | | |  | 56-80 |Clay loam, loam|CL |A-6 | 0 | 0-5 |90-95 |85-95 |75-85  | | | | | | | | | 911B: | | | | | | | | |  Colo------------| 0-8 |Silt loam, |CL, CH |A-7 | 0 | 0 | 100 | 100 |90-10 | | silty clay | | | | | | |  | | loam | | | | | | |  | 8-34 |Silt loam, |CL, CH |A-7 | 0 | 0 | 100 | 100 |90-10 | | silty clay | | | | | | |  | | loam | | | | | | |  | 34-40 |Silty clay loam|CL, CH |A-7 | 0 | 0 | 100 | 100 |90-10 | 40-46 |Silty clay loam|CL, CH |A-7 | 0 | 0 | 100 | 100 |90-10 | 46-52 |Silty clay loam|CL, CH |A-7 | 0 | 0 | 100 | 100 |90-10 | 52-60 |Clay loam, |CL, CH |A-7 | 0 | 0 | 100 | 100 |95-10 | | silty clay | | | | | | |  | | loam, silt | | | | | | |  | | loam | | | | | | |  | | | | | | | | | 
Table 18.--Engineering Index Properties--Continued _______________________________________________________________________________________________________

 | | | Classification | Fragments | Percentage pass Map symbol | Depth | USDA texture |___________________________|_____________| sieve number- and | | | | | >10 | 3-10 |___________________ soil name | | | Unified | AASHTO |inches|inches| 4 | 10 | 40 _______________________________________________________________________________________________________ | In | | | | Pct | Pct | | |  | | | | | | | | | 911B: | | | | | | | | |  Ely-------------| 0-8 |Silt loam, |CL, OL, OH, |A-7-6, A-6 | 0 | 0 | 100 | 100 |95-10 | | silty clay | MH | | | | | |  | | loam | | | | | | |  | 8-24 |Silt loam, |CL, OL, OH, |A-7-6, A-6 | 0 | 0 | 100 | 100 |95-10 | | silty clay | MH | | | | | |  | | loam | | | | | | |  | 24-32 |Silty clay loam|CL, ML |A-6, A-7-6 | 0 | 0 | 100 | 100 |95-10 | 32-47 |Silty clay loam|CL, ML |A-7-6, A-6 | 0 | 0 | 100 | 100 |95-10 | 47-58 |Silty clay loam|CL |A-6 | 0 | 0 | 100 | 100 |90-10 | 58-80 |Loam, clay |CL |A-6 | 0 | 0 |95-100|95-100|80-95  | | loam, silt | | | | | | |  | | loam, silty | | | | | | |  | | clay loam | | | | | | |  | | | | | | | | | 933: | | | | | | | | |  Sawmill, | | | | | | | | |  occasionally | | | | | | | | |  flooded--------| 0-10 |Silty clay loam|CL |A-6, A-7 | 0 | 0 | 100 | 100 |95-10 | 10-25 |Silty clay loam|CL |A-6, A-7 | 0 | 0 | 100 | 100 |95-10 | 25-32 |Silty clay loam|CL |A-6, A-7 | 0 | 0 | 100 | 100 |95-10 | 32-40 |Silty clay loam|CL |A-6, A-7, A-4| 0 | 0 | 100 | 100 |85-10 | 40-58 |Silty clay |CL |A-6, A-7, A-4| 0 | 0 | 100 | 100 |85-10 | | loam, clay | | | | | | |  | | loam, loam | | | | | | |  | 58-65 |Clay loam, |CL |A-4, A-6, A-7| 0 | 0 | 100 | 100 |75-10 | | loam, silty | | | | | | |  | | clay loam | | | | | | |  | | | | | | | | | 982: | | | | | | | | |  Maxmore---------| 0-8 |Silt loam, |CL, CH |A-7-6 | 0 | 0 | 100 | 100 | 100  | | silty clay | | | | | | |  | | loam | | | | | | |  | 8-20 |Silt loam, |CL, CH |A-7-6 | 0 | 0 | 100 | 100 | 100  | | silty clay | | | | | | |  | | loam | | | | | | |  | 20-50 |Silt loam, |CH, CL |A-7-6 | 0 | 0 | 100 | 100 | 100  | | silty clay | | | | | | |  | | loam | | | | | | |  | 50-80 |Clay loam, loam|CL |A-6 | 0 | 0-5 |90-95 |85-95 |75-85  | | | | | | | | | 
Table 18.--Engineering Index Properties--Continued _______________________________________________________________________________________________________

 | | | Classification | Fragments | Percentage pass Map symbol | Depth | USDA texture |___________________________|_____________| sieve number- and | | | | | >10 | 3-10 |___________________ soil name | | | Unified | AASHTO |inches|inches| 4 | 10 | 40 _______________________________________________________________________________________________________ | In | | | | Pct | Pct | | |  | | | | | | | | | 1152: | | | | | | | | |  Marshan, 24 to | | | | | | | | |  40 inches to | | | | | | | | |  sand and gravel| 0-10 |Loam, clay |CL |A-7-6, A-6 | 0 | 0 |95-100|95-100|75-10 | | loam, silty | | | | | | |  | | clay loam | | | | | | |  | 10-14 |Loam, clay |CL |A-7-6, A-6 | 0 | 0 |95-100|95-100|75-10 | | loam, silty | | | | | | |  | | clay loam | | | | | | |  | 14-18 |Silty clay |CL |A-7-6, A-6 | 0 | 0 |95-100|95-100|75-10 | | loam, loam, | | | | | | |  | | clay loam | | | | | | |  | 18-23 |Silty clay |CL |A-7-6, A-6 | 0 | 0 |95-100|95-100|75-10 | | loam, loam, | | | | | | |  | | clay loam | | | | | | |  | 23-30 |Sandy loam, |CL, CL-ML, |A-6, A-4 | 0 | 0 |95-100|75-100|70-90  | | clay loam, | SC, SC-SM | | | | | |  | | loam | | | | | | |  | 30-40 |Sand, gravelly |SP, SW, SP-SM|A-1 | 0 | 0-3 |90-95 |80-95 |20-45  | | sand | | | | | | |  | 40-60 |Sand, gravelly |SP, SW, SP-SM|A-1 | 0 | 0-3 |65-95 |45-95 |20-45  | | sand | | | | | | |  | | | | | | | | | 1226: | | | | | | | | |  Lawler, 24 to 40| | | | | | | | |  inches to sand | | | | | | | | |  and gravel-----| 0-8 |Silt loam, loam|CL, ML |A-6, A-7 | 0 | 0 | 100 |90-100|70-90  | 8-15 |Silt loam, loam|CL, ML |A-6, A-7 | 0 | 0 | 100 |90-100|70-90  | 15-21 |Loam, clay loam|CL, ML |A-6, A-7 | 0 | 0 | 100 |90-100|70-90  | 21-32 |Sandy clay |CL, SC |A-6 | 0 | 0-5 |90-95 |85-95 |70-85  | | loam, loam | | | | | | |  | 32-37 |Sandy clay loam|CL, SC |A-6 | 0 | 0-5 |90-95 |85-95 |70-85  | 37-60 |Coarse sand, |SW, GP, SP, |A-1 | 0 | 0-10 |50-90 |50-85 |15-35  | | loamy coarse | SW-SM | | | | | |  | | sand, very | | | | | | |  | | gravelly sand,| | | | | | |  | | very gravelly | | | | | | |  | | loamy sand | | | | | | |  | | | | | | | | | 
Table 18.--Engineering Index Properties--Continued _______________________________________________________________________________________________________

 | | | Classification | Fragments | Percentage pas Map symbol | Depth | USDA texture |___________________________|_____________| sieve number and | | | | | >10 | 3-10 |___________________ soil name | | | Unified | AASHTO |inches|inches| 4 | 10 | 40 _______________________________________________________________________________________________________ | In | | | | Pct | Pct | | |  | | | | | | | | | 1285G: | | | | | | | | |  Burkhardt-------| 0-10 |Gravelly sandy |SM, SC-SM |A-2-4, A-4 | 0 | 0 |85-95 |80-95 |55-7 | | loam, loam, | | | | | | |  | | sandy loam | | | | | | |  | 10-17 |Gravelly sandy |SM, ML, SC, |A-2, A-4 | 0 | 0 |85-100|80-100|50-9 | | loam, loam, | CL | | | | | |  | | sandy loam | | | | | | |  | 17-19 |Gravelly sand, |SP, SP-SM |A-1 | 0 | 0 |80-95 |80-95 |20-3 | | gravelly loamy| | | | | | |  | | sand, sand, | | | | | | |  | | loamy sand | | | | | | |  | 19-60 |Stratified sand|SP, SP-SM, |A-1 | 0 | 0 |50-85 |45-85 |10-2 | | to gravelly | GP, GP-GM | | | | | |  | | coarse sand | | | | | | |  | | | | | | | | |  Bassett---------| 0-5 |Silt loam, loam|CL, CL-ML |A-4, A-6 | 0 | 0-5 |95-100|95-100|85-9 | 5-10 |Silt loam, loam|CL |A-6, A-4 | 0 | 0-5 |95-100|95-100|85-9 | 10-14 |Loam |CL |A-6, A-4 | 0 | 0-5 |95-100|95-100|85-9 | 14-43 |Sandy clay |CL |A-6 | 0 | 0-5 |90-95 |85-95 |80-9 | | loam, clay | | | | | | |  | | loam, loam | | | | | | |  | 43-59 |Loam |CL |A-6 | 0 | 0-5 |90-95 |85-95 |80-9 | 59-73 |Loam |CL |A-6 | 0 | 0-5 |90-95 |85-95 |80-9 | | | | | | | | |  Chelsea---------| 0-4 |Fine sand, |SM, SP-SM |A-2-4 | 0 | 0 | 100 | 100 |65-8 | | loamy fine | | | | | | |  | | sand | | | | | | |  | 4-30 |Loamy fine |SP, SM, SP-SM|A-3, A-2-4 | 0 | 0 | 100 | 100 |65-8 | | sand, fine | | | | | | |  | | sand | | | | | | |  | 30-70 |Loamy fine |SP, SM, SP-SM|A-3, A-2-4 | 0 | 0 | 100 | 100 |65-8 | | sand, fine | | | | | | |  | | sandy loam, | | | | | | |  | | loamy sand, | | | | | | |  | | fine sand, | | | | | | |  | | sandy loam | | | | | | |  | | | | | | | | | 1585: | | | | | | | | |  Spillville, | | | | | | | | |  frequently | | | | | | | | |  flooded--------| 0-54 |Loam |CL |A-6 | 0 | 0 | 100 |95-100|85-9 | 54-60 |Sandy loam, |CL, CL-ML, |A-6, A-4 | 0 | 0 | 100 |95-100|80-9 | | sandy clay | SC-SM, SC | | | | | |  | | loam, loam | | | | | | |  | | | | | | | | | 
Table 18.--Engineering Index Properties--Continued _______________________________________________________________________________________________________

 | | | Classification | Fragments | Percentage pass Map symbol | Depth | USDA texture |___________________________|_____________| sieve number- and | | | | | >10 | 3-10 |___________________ soil name | | | Unified | AASHTO |inches|inches| 4 | 10 | 40 _______________________________________________________________________________________________________ | In | | | | Pct | Pct | | |  | | | | | | | | | 1585: | | | | | | | | |  Coland, | | | | | | | | |  frequently | | | | | | | | |  flooded--------| 0-32 |Clay loam, |CL |A-6, A-7-6 | 0 | 0 | 100 | 100 |95-10 | | silty clay | | | | | | |  | | loam | | | | | | |  | 32-40 |Loam, clay loam|CL |A-7-6, A-6 | 0 | 0 | 100 | 100 |95-10 | 40-44 |Loam, clay |CL, SC, |A-4, A-6 | 0 | 0 | 100 |90-100|60-70  | | loam, sandy | CL-ML, SC-SM| | | | | |  | | loam | | | | | | |  | 44-52 |Sandy loam, |SC, CL, |A-6, A-4 | 0 | 0 | 100 |90-100|60-70  | | clay loam, | CL-ML, SC-SM| | | | | |  | | loam | | | | | | |  | 52-60 |Loam, clay |CL, SC, |A-4, A-6 | 0 | 0 | 100 |90-100|60-70  | | loam, sandy | CL-ML, SC-SM| | | | | |  | | loam | | | | | | |  | | | | | | | | |  Aquolls, ponded.| | | | | | | | |  | | | | | | | | | 1586: | | | | | | | | |  Sigglekov, | | | | | | | | |  frequently | | | | | | | | |  flooded--------| 0-9 |Loam, sandy |ML, SC-SM, SM|A-2, A-4 | 0 | 0 | 100 | 100 |75-80  | | loam, silt | | | | | | |  | | loam | | | | | | |  | 9-15 |Sand, sandy |SM, SW, |A-1-b | 0 | 0 |90-100|90-95 |30-50  | | loam, loamy | SW-SM, SP-SM| | | | | |  | | sand | | | | | | |  | 15-35 |Sand, sandy |SM, SW, |A-1-b | 0 | 0 |90-100|90-95 |30-50  | | loam, loamy | SW-SM, SP-SM| | | | | |  | | sand | | | | | | |  | 35-80 |Coarse sand, |SM, SW, |A-1-b | 0 | 0 |90-100|90-95 |30-50  | | sandy loam, | SW-SM, SP-SM| | | | | |  | | loamy sand | | | | | | |  | | | | | | | | |  Fluvaquents, | | | | | | | | |  frequently | | | | | | | | |  flooded. | | | | | | | | |  | | | | | | | | |  Aquents, ponded.| | | | | | | | |  | | | | | | | | | 4000: | | | | | | | | |  Urban land. | | | | | | | | |  | | | | | | | | | 
Table 18.--Engineering Index Properties--Continued _______________________________________________________________________________________________________

 | | | Classification | Fragments | Percentage pass Map symbol | Depth | USDA texture |___________________________|_____________| sieve number- and | | | | | >10 | 3-10 |___________________ soil name | | | Unified | AASHTO |inches|inches| 4 | 10 | 40 _______________________________________________________________________________________________________ | In | | | | Pct | Pct | | |  | | | | | | | | | 4007: | | | | | | | | |  Wiota-----------| 0-8 |Silt loam, |CL |A-6 | 0 | 0 | 100 | 100 | 100  | | silty clay | | | | | | |  | | loam | | | | | | |  | 8-22 |Silt loam, |CL |A-6 | 0 | 0 | 100 | 100 | 100  | | silty clay | | | | | | |  | | loam | | | | | | |  | 22-28 |Silty clay loam|CL |A-7 | 0 | 0 | 100 | 100 |95-10 | 28-48 |Silty clay loam|CL |A-7 | 0 | 0 | 100 | 100 |95-10 | 48-54 |Silt loam, |CL |A-7, A-6 | 0 | 0 | 100 | 100 |95-10 | | silty clay | | | | | | |  | | loam | | | | | | |  | 54-80 |Sand, loamy |SM, SC-SM |A-2-4, A-3 | 0 | 0 | 100 |95-100|60-80  | | sand | | | | | | |  | | | | | | | | |  Urban land. | | | | | | | | |  | | | | | | | | | 4041: | | | | | | | | |  Sparta----------| 0-11 |Sand, fine |SM |A-2-4, A-3 | 0 | 0 |95-100|90-100|50-95  | | sand, loamy | | | | | | |  | | sand, loamy | | | | | | |  | | fine sand | | | | | | |  | 11-15 |Sand, fine |SM |A-2-4, A-3 | 0 | 0 |95-100|90-100|50-95  | | sand, loamy | | | | | | |  | | sand, loamy | | | | | | |  | | fine sand | | | | | | |  | 15-34 |Sand, loamy |SP-SM, SM |A-2-4, A-3 | 0 | 0 |95-100|90-100|50-95  | | sand, loamy | | | | | | |  | | fine sand, | | | | | | |  | | fine sand | | | | | | |  | 34-60 |Sand, fine sand|SP-SM, SM, SP|A-2-4, A-3 | 0 | 0 |95-100|90-100|50-95  | | | | | | | | |  Urban land. | | | | | | | | |  | | | | | | | | | 
Table 18.--Engineering Index Properties--Continued _______________________________________________________________________________________________________

 | | | Classification | Fragments | Percentage pass Map symbol | Depth | USDA texture |___________________________|_____________| sieve number- and | | | | | >10 | 3-10 |___________________ soil name | | | Unified | AASHTO |inches|inches| 4 | 10 | 40 _______________________________________________________________________________________________________ | In | | | | Pct | Pct | | |  | | | | | | | | | 4041B: | | | | | | | | |  Sparta----------| 0-11 |Sand, fine |SM |A-2-4, A-3 | 0 | 0 |95-100|90-100|50-95  | | sand, loamy | | | | | | |  | | sand, loamy | | | | | | |  | | fine sand | | | | | | |  | 11-15 |Sand, fine |SM |A-2-4, A-3 | 0 | 0 |95-100|90-100|50-95  | | sand, loamy | | | | | | |  | | sand, loamy | | | | | | |  | | fine sand | | | | | | |  | 15-34 |Sand, loamy |SP-SM, SM |A-2-4, A-3 | 0 | 0 |95-100|90-100|50-95  | | sand, loamy | | | | | | |  | | fine sand, | | | | | | |  | | fine sand | | | | | | |  | 34-60 |Sand, fine sand|SP-SM, SM, SP|A-2-4, A-3 | 0 | 0 |95-100|90-100|50-95  | | | | | | | | |  Urban land. | | | | | | | | |  | | | | | | | | | 4041C: | | | | | | | | |  Sparta----------| 0-9 |Sand, fine |SM |A-2-4, A-3 | 0 | 0 |95-100|90-100|50-95  | | sand, loamy | | | | | | |  | | sand, loamy | | | | | | |  | | fine sand | | | | | | |  | 9-14 |Sand, fine |SM |A-2-4, A-3 | 0 | 0 |95-100|90-100|50-95  | | sand, loamy | | | | | | |  | | sand, loamy | | | | | | |  | | fine sand | | | | | | |  | 14-32 |Sand, loamy |SP-SM, SM |A-2-4, A-3 | 0 | 0 |95-100|90-100|50-95  | | sand, loamy | | | | | | |  | | fine sand, | | | | | | |  | | fine sand | | | | | | |  | 32-60 |Sand, fine sand|SP-SM, SM, SP|A-2-4, A-3 | 0 | 0 |95-100|90-100|50-95  | | | | | | | | |  Urban land. | | | | | | | | |  | | | | | | | | | 
Table 18.--Engineering Index Properties--Continued _______________________________________________________________________________________________________

 | | | Classification | Fragments | Percentage pass Map symbol | Depth | USDA texture |___________________________|_____________| sieve number- and | | | | | >10 | 3-10 |___________________ soil name | | | Unified | AASHTO |inches|inches| 4 | 10 | 40 _______________________________________________________________________________________________________ | In | | | | Pct | Pct | | |  | | | | | | | | | 4041D: | | | | | | | | |  Sparta----------| 0-9 |Sand, fine |SM |A-2-4, A-3 | 0 | 0 |95-100|90-100|50-95  | | sand, loamy | | | | | | |  | | sand, loamy | | | | | | |  | | fine sand | | | | | | |  | 9-14 |Sand, fine |SM |A-2-4, A-3 | 0 | 0 |95-100|90-100|50-95  | | sand, loamy | | | | | | |  | | sand, loamy | | | | | | |  | | fine sand | | | | | | |  | 14-30 |Sand, loamy |SP-SM, SM |A-2-4, A-3 | 0 | 0 |95-100|90-100|50-95  | | sand, loamy | | | | | | |  | | fine sand, | | | | | | |  | | fine sand | | | | | | |  | 30-60 |Sand, fine sand|SP-SM, SM, SP|A-2-4, A-3 | 0 | 0 |95-100|90-100|50-95  | | | | | | | | |  Urban land. | | | | | | | | |  | | | | | | | | | 4063B: | | | | | | | | |  Chelsea---------| 0-8 |Fine sand, |SM, SP-SM |A-2-4 | 0 | 0 | 100 | 100 |65-80  | | loamy fine | | | | | | |  | | sand | | | | | | |  | 8-36 |Loamy fine |SM, SP, SP-SM|A-3, A-2-4 | 0 | 0 | 100 | 100 |65-85  | | sand, fine | | | | | | |  | | sand | | | | | | |  | 36-70 |Loamy fine |SM, SP, SP-SM|A-3, A-2-4 | 0 | 0 | 100 | 100 |65-85  | | sand, fine | | | | | | |  | | sandy loam, | | | | | | |  | | loamy sand, | | | | | | |  | | fine sand, | | | | | | |  | | sandy loam | | | | | | |  | | | | | | | | |  Urban land. | | | | | | | | |  | | | | | | | | | 
Table 18.--Engineering Index Properties--Continued _______________________________________________________________________________________________________

 | | | Classification | Fragments | Percentage pass Map symbol | Depth | USDA texture |___________________________|_____________| sieve number- and | | | | | >10 | 3-10 |___________________ soil name | | | Unified | AASHTO |inches|inches| 4 | 10 | 40 _______________________________________________________________________________________________________ | In | | | | Pct | Pct | | |  | | | | | | | | | 4063C: | | | | | | | | |  Chelsea---------| 0-8 |Fine sand, |SM, SP-SM |A-2-4 | 0 | 0 | 100 | 100 |65-80  | | loamy fine | | | | | | |  | | sand | | | | | | |  | 8-36 |Loamy fine |SM, SP, SP-SM|A-3, A-2-4 | 0 | 0 | 100 | 100 |65-85  | | sand, fine | | | | | | |  | | sand | | | | | | |  | 36-70 |Loamy fine |SM, SP, SP-SM|A-3, A-2-4 | 0 | 0 | 100 | 100 |65-85  | | sand, fine | | | | | | |  | | sandy loam, | | | | | | |  | | loamy sand, | | | | | | |  | | fine sand, | | | | | | |  | | sandy loam | | | | | | |  | | | | | | | | |  Urban land. | | | | | | | | |  | | | | | | | | | 4063D: | | | | | | | | |  Chelsea---------| 0-8 |Fine sand, |SM, SP-SM |A-2-4 | 0 | 0 | 100 | 100 |65-80  | | loamy fine | | | | | | |  | | sand | | | | | | |  | 8-32 |Loamy fine |SM, SP, SP-SM|A-3, A-2-4 | 0 | 0 | 100 | 100 |65-85  | | sand, fine | | | | | | |  | | sand | | | | | | |  | 32-70 |Fine sand, |SM, SP, SP-SM|A-3, A-2-4 | 0 | 0 | 100 | 100 |65-85  | | sandy loam, | | | | | | |  | | loamy fine | | | | | | |  | | sand, fine | | | | | | |  | | sandy loam, | | | | | | |  | | loamy sand | | | | | | |  | | | | | | | | |  Urban land. | | | | | | | | |  | | | | | | | | | 4083B: | | | | | | | | |  Kenyon----------| 0-8 |Loam, silt loam|CL |A-6 | 0 | 0-5 |95-100|95-100|85-95  | 8-14 |Loam, silt loam|CL |A-6 | 0 | 0-5 |95-100|95-100|85-95  | 14-19 |Loam, sandy |CL |A-6 | 0 | 0-5 |95-100|95-100|85-95  | | clay loam, | | | | | | |  | | silt loam | | | | | | |  | 19-47 |Loam, clay |CL |A-6 | 0 | 0-5 |90-95 |85-95 |80-90  | | loam, sandy | | | | | | |  | | clay loam | | | | | | |  | 47-54 |Loam |CL |A-6 | 0 | 0-5 |90-95 |85-95 |80-90  | 54-76 |Loam |CL |A-6 | 0 | 0-5 |90-95 |85-95 |80-90  | | | | | | | | |  Urban land. | | | | | | | | |  | | | | | | | | | 
Table 18.--Engineering Index Properties--Continued _______________________________________________________________________________________________________

 | | | Classification | Fragments | Percentage pass Map symbol | Depth | USDA texture |___________________________|_____________| sieve number- and | | | | | >10 | 3-10 |___________________ soil name | | | Unified | AASHTO |inches|inches| 4 | 10 | 40 _______________________________________________________________________________________________________ | In | | | | Pct | Pct | | |  | | | | | | | | | 4083C: | | | | | | | | |  Kenyon----------| 0-8 |Loam, silt loam|CL |A-6 | 0 | 0-5 |95-100|95-100|85-95  | 8-14 |Loam, silt loam|CL |A-6 | 0 | 0-5 |95-100|95-100|85-95  | 14-19 |Loam, sandy |CL |A-6 | 0 | 0-5 |95-100|95-100|85-95  | | clay loam, | | | | | | |  | | silt loam | | | | | | |  | 19-47 |Loam, clay |CL |A-6 | 0 | 0-5 |90-95 |85-95 |80-90  | | loam, sandy | | | | | | |  | | clay loam | | | | | | |  | 47-54 |Loam |CL |A-6 | 0 | 0-5 |90-95 |85-95 |80-90  | 54-76 |Loam |CL |A-6 | 0 | 0-5 |90-95 |85-95 |80-90  | | | | | | | | |  Urban land. | | | | | | | | |  | | | | | | | | | 4083D: | | | | | | | | |  Kenyon----------| 0-8 |Loam, silt loam|CL |A-6 | 0 | 0-5 |95-100|95-100|85-95  | 8-14 |Loam, silt loam|CL |A-6 | 0 | 0-5 |95-100|95-100|85-95  | 14-19 |Loam, sandy |CL |A-6 | 0 | 0-5 |95-100|95-100|85-95  | | clay loam, | | | | | | |  | | silt loam | | | | | | |  | 19-47 |Loam, clay |CL |A-6 | 0 | 0-5 |90-95 |85-95 |80-90  | | loam, sandy | | | | | | |  | | clay loam | | | | | | |  | 47-54 |Loam |CL |A-6 | 0 | 0-5 |90-95 |85-95 |80-90  | 54-76 |Loam |CL |A-6 | 0 | 0-5 |90-95 |85-95 |80-90  | | | | | | | | |  Urban land. | | | | | | | | |  | | | | | | | | | 4084: | | | | | | | | |  Clyde-----------| 0-8 |Clay loam, |OL, MH, ML, |A-7 | 0 | 0-5 |95-100|95-100|80-90  | | silty clay | OH | | | | | |  | | loam, loam | | | | | | |  | 8-17 |Silty clay |OL, MH, ML, |A-7 | 0 | 0-5 |95-100|95-100|80-90  | | loam, clay | OH | | | | | |  | | loam | | | | | | |  | 17-23 |Clay loam, |OL, MH, ML, |A-7 | 0 | 0-5 |95-100|95-100|80-90  | | silty clay | OH | | | | | |  | | loam | | | | | | |  | 23-41 |Clay loam, |CL, ML |A-6, A-7 | 0 | 0-5 |95-100|90-95 |75-90  | | silty clay | | | | | | |  | | loam | | | | | | |  | 41-44 |Sandy loam, |SM, SC-SM |A-2-4 | 0 | 2-5 |85-95 |85-95 |50-80  | | loam | | | | | | |  | 44-54 |Loam, clay loam|CL, SC |A-6 | 0-5 | 2-5 |90-95 |85-95 |75-90  | 54-66 |Clay loam, loam|CL, SC |A-6 | 0-5 | 2-5 |90-95 |85-95 |75-90  | | | | | | | | | 
Table 18.--Engineering Index Properties--Continued _______________________________________________________________________________________________________

 | | | Classification | Fragments | Percentage pass Map symbol | Depth | USDA texture |___________________________|_____________| sieve number- and | | | | | >10 | 3-10 |___________________ soil name | | | Unified | AASHTO |inches|inches| 4 | 10 | 40 _______________________________________________________________________________________________________ | In | | | | Pct | Pct | | |  | | | | | | | | | 4084: | | | | | | | | |  Urban land. | | | | | | | | |  | | | | | | | | | 4088: | | | | | | | | |  Nevin-----------| 0-8 |Silt loam, |CL, OL |A-6, A-7 | 0 | 0 | 100 | 100 | 100  | | silty clay | | | | | | |  | | loam | | | | | | |  | 8-24 |Silty clay |CL, OL |A-6, A-7 | 0 | 0 | 100 | 100 | 100  | | loam, silt | | | | | | |  | | loam | | | | | | |  | 24-30 |Silt loam, |CL |A-7, A-6 | 0 | 0 | 100 | 100 |95-10 | | silty clay | | | | | | |  | | loam | | | | | | |  | 30-46 |Silty clay loam|CL |A-7-6 | 0 | 0 | 100 | 100 |95-10 | 46-58 |Silty clay loam|CL |A-7-6 | 0 | 0 | 100 | 100 |95-10 | 58-80 |Loamy sand, |SM, SC-SM |A-2-4, A-3 | 0 | 0 | 100 |95-100|60-80  | | sandy loam, | | | | | | |  | | sand | | | | | | |  | | | | | | | | |  Urban land. | | | | | | | | |  | | | | | | | | | 4133: | | | | | | | | |  Colo, | | | | | | | | |  occasionally | | | | | | | | |  flooded--------| 0-8 |Silt loam, |CL, CH |A-7 | 0 | 0 | 100 | 100 |90-10 | | silty clay | | | | | | |  | | loam | | | | | | |  | 8-34 |Silt loam, |CL, CH |A-7 | 0 | 0 | 100 | 100 |90-10 | | silty clay | | | | | | |  | | loam | | | | | | |  | 34-40 |Silty clay loam|CL, CH |A-7 | 0 | 0 | 100 | 100 |90-10 | 40-46 |Silty clay loam|CL, CH |A-7 | 0 | 0 | 100 | 100 |90-10 | 46-52 |Silty clay loam|CL, CH |A-7 | 0 | 0 | 100 | 100 |90-10 | 52-60 |Clay loam, |CL, CH |A-7 | 0 | 0 | 100 | 100 |95-10 | | silty clay | | | | | | |  | | loam, silt | | | | | | |  | | loam | | | | | | |  | | | | | | | | |  Urban land. | | | | | | | | |  | | | | | | | | | 
Table 18.--Engineering Index Properties--Continued _______________________________________________________________________________________________________

 | | | Classification | Fragments | Percentage pass Map symbol | Depth | USDA texture |___________________________|_____________| sieve number- and | | | | | >10 | 3-10 |___________________ soil name | | | Unified | AASHTO |inches|inches| 4 | 10 | 40 _______________________________________________________________________________________________________ | In | | | | Pct | Pct | | |  | | | | | | | | | 4135: | | | | | | | | |  Coland, | | | | | | | | |  occasionally | | | | | | | | |  flooded--------| 0-8 |Clay loam, |CL |A-7-6 | 0 | 0 | 100 | 100 |95-10 | | silty clay | | | | | | |  | | loam | | | | | | |  | 8-32 |Clay loam, |CL |A-7-6 | 0 | 0 | 100 | 100 |95-10 | | silty clay | | | | | | |  | | loam | | | | | | |  | 32-40 |Clay loam, loam|CL |A-7-6 | 0 | 0 | 100 | 100 |95-10 | 40-44 |Sandy loam, |CL, SC, |A-4, A-6 | 0 | 0 | 100 |90-100|60-70  | | loam, clay | CL-ML, SC-SM| | | | | |  | | loam | | | | | | |  | 44-52 |Sandy loam, |CL, SC, |A-4, A-6 | 0 | 0 | 100 |90-100|60-70  | | clay loam, | CL-ML, SC-SM| | | | | |  | | loam | | | | | | |  | 52-66 |Loam, clay |CL, SC, |A-4, A-6 | 0 | 0 | 100 |90-100|60-70  | | loam, sandy | CL-ML, SC-SM| | | | | |  | | loam | | | | | | |  | | | | | | | | |  Urban land. | | | | | | | | |  | | | | | | | | | 4152: | | | | | | | | |  Marshan, 24 to | | | | | | | | |  40 inches to | | | | | | | | |  sand and gravel| 0-10 |Loam, clay |CL |A-7-6, A-6 | 0 | 0 |95-100|95-100|75-10 | | loam, silty | | | | | | |  | | clay loam | | | | | | |  | 10-14 |Loam, clay |CL |A-7-6, A-6 | 0 | 0 |95-100|95-100|75-10 | | loam, silty | | | | | | |  | | clay loam | | | | | | |  | 14-18 |Silty clay |CL |A-7-6, A-6 | 0 | 0 |95-100|95-100|75-10 | | loam, loam, | | | | | | |  | | clay loam | | | | | | |  | 18-23 |Silty clay |CL |A-7-6, A-6 | 0 | 0 |95-100|95-100|75-10 | | loam, loam, | | | | | | |  | | clay loam | | | | | | |  | 23-30 |Sandy loam, |CL, CL-ML, |A-6, A-4 | 0 | 0 |95-100|75-100|70-90  | | clay loam, | SC, SC-SM | | | | | |  | | loam | | | | | | |  | 30-40 |Sand, gravelly |SP, SW, SP-SM|A-1 | 0 | 0-3 |90-95 |80-95 |20-45  | | sand | | | | | | |  | 40-60 |Sand, gravelly |SP, SW, SP-SM|A-1 | 0 | 0-3 |65-95 |45-95 |20-45  | | sand | | | | | | |  | | | | | | | | | 
Table 18.--Engineering Index Properties--Continued _______________________________________________________________________________________________________

 | | | Classification | Fragments | Percentage pass Map symbol | Depth | USDA texture |___________________________|_____________| sieve number- and | | | | | >10 | 3-10 |___________________ soil name | | | Unified | AASHTO |inches|inches| 4 | 10 | 40 _______________________________________________________________________________________________________ | In | | | | Pct | Pct | | |  | | | | | | | | | 4152: | | | | | | | | |  Urban land. | | | | | | | | |  | | | | | | | | | 4159: | | | | | | | | |  Finchford-------| 0-8 |Loamy sand, |SM |A-2-4, A-3 | 0 | 0 |90-95 |85-95 |50-60  | | sandy loam, | | | | | | |  | | sand | | | | | | |  | 8-18 |Loamy sand, |SM |A-2-4, A-3 | 0 | 0 |90-95 |85-95 |50-60  | | sandy loam, | | | | | | |  | | sand | | | | | | |  | 18-30 |Sand, loamy |SP-SM |A-1-b | 0 | 0 |90-95 |85-95 |25-40  | | sand, loamy | | | | | | |  | | coarse sand, | | | | | | |  | | coarse sand | | | | | | |  | 30-55 |Gravelly coarse|SW, SW-SM |A-1 | 0 | 0-5 |50-75 |50-75 |20-35  | | sand, gravelly| | | | | | |  | | sand, sand, | | | | | | |  | | coarse sand | | | | | | |  | 55-70 |Coarse sand, |SW, SW-SM |A-1 | 0 | 0-5 |50-75 |50-75 |20-35  | | gravelly | | | | | | |  | | coarse sand, | | | | | | |  | | gravelly sand,| | | | | | |  | | sand | | | | | | |  | 70-80 |Gravelly coarse|SW, SW-SM |A-1 | 0 | 0-5 |50-75 |50-75 |20-35  | | sand, gravelly| | | | | | |  | | sand, sand, | | | | | | |  | | coarse sand | | | | | | |  | | | | | | | | |  Urban land. | | | | | | | | |  | | | | | | | | | 
Table 18.--Engineering Index Properties--Continued _______________________________________________________________________________________________________

 | | | Classification | Fragments | Percentage pass Map symbol | Depth | USDA texture |___________________________|_____________| sieve number- and | | | | | >10 | 3-10 |___________________ soil name | | | Unified | AASHTO |inches|inches| 4 | 10 | 40 _______________________________________________________________________________________________________ | In | | | | Pct | Pct | | |  | | | | | | | | | 4159C: | | | | | | | | |  Finchford-------| 0-8 |Loamy sand, |SM |A-2-4, A-3 | 0 | 0 |90-95 |85-95 |50-60  | | sandy loam, | | | | | | |  | | sand | | | | | | |  | 8-15 |Loamy sand, |SM |A-2-4, A-3 | 0 | 0 |90-95 |85-95 |50-60  | | sandy loam, | | | | | | |  | | sand | | | | | | |  | 15-26 |Sand, loamy |SP-SM |A-1-b | 0 | 0 |90-95 |85-95 |25-40  | | sand, loamy | | | | | | |  | | coarse sand, | | | | | | |  | | coarse sand | | | | | | |  | 26-50 |Gravelly coarse|SW, SW-SM |A-1 | 0 | 0-5 |50-75 |50-75 |20-35  | | sand, gravelly| | | | | | |  | | sand, sand, | | | | | | |  | | coarse sand | | | | | | |  | 50-65 |Coarse sand, |SW, SW-SM |A-1 | 0 | 0-5 |50-75 |50-75 |20-35  | | gravelly | | | | | | |  | | coarse sand, | | | | | | |  | | gravelly sand,| | | | | | |  | | sand | | | | | | |  | 65-80 |Gravelly coarse|SW, SW-SM |A-1 | 0 | 0-5 |50-75 |50-75 |20-35  | | sand, gravelly| | | | | | |  | | sand, sand, | | | | | | |  | | coarse sand | | | | | | |  | | | | | | | | |  Urban land. | | | | | | | | |  | | | | | | | | | 4171B: | | | | | | | | |  Bassett---------| 0-8 |Silt loam, loam|CL, CL-ML |A-4, A-6 | 0 | 0-5 |95-100|95-100|85-95  | 8-10 |Silt loam, loam|CL |A-4, A-6 | 0 | 0-5 |95-100|95-100|85-95  | 10-14 |Loam |CL |A-4, A-6 | 0 | 0-5 |95-100|95-100|85-95  | 14-43 |Sandy clay |CL |A-6 | 0 | 2-5 |90-95 |85-95 |80-90  | | loam, clay | | | | | | |  | | loam, loam | | | | | | |  | 43-59 |Loam |CL |A-6 | 0 | 2-5 |90-95 |85-95 |80-90  | 59-73 |Loam |CL |A-6 | 0 | 2-5 |90-95 |85-95 |80-90  | | | | | | | | |  Urban land. | | | | | | | | |  | | | | | | | | | 
Table 18.--Engineering Index Properties--Continued _______________________________________________________________________________________________________

 | | | Classification | Fragments | Percentage pass Map symbol | Depth | USDA texture |___________________________|_____________| sieve number- and | | | | | >10 | 3-10 |___________________ soil name | | | Unified | AASHTO |inches|inches| 4 | 10 | 40 _______________________________________________________________________________________________________ | In | | | | Pct | Pct | | |  | | | | | | | | | 4171D: | | | | | | | | |  Bassett---------| 0-8 |Silt loam, loam|CL, CL-ML |A-4, A-6 | 0 | 0-5 |95-100|95-100|85-95  | 8-10 |Silt loam, loam|CL |A-4, A-6 | 0 | 0-5 |95-100|95-100|85-95  | 10-14 |Loam |CL |A-4, A-6 | 0 | 0-5 |95-100|95-100|85-95  | 14-43 |Sandy clay |CL |A-6 | 0 | 2-5 |90-95 |85-95 |80-90  | | loam, clay | | | | | | |  | | loam, loam | | | | | | |  | 43-59 |Loam |CL |A-6 | 0 | 2-5 |90-95 |85-95 |80-90  | 59-73 |Loam |CL |A-6 | 0 | 2-5 |90-95 |85-95 |80-90  | | | | | | | | |  Urban land. | | | | | | | | |  | | | | | | | | | 4175: | | | | | | | | |  Dickinson-------| 0-9 |Loam, sandy |SM, SC, SC-SM|A-4, A-2 | 0 | 0 | 100 | 100 |85-95  | | loam, fine | | | | | | |  | | sandy loam | | | | | | |  | 9-18 |Loam, sandy |SM, SC, SC-SM|A-4 | 0 | 0 | 100 | 100 |85-95  | | loam, fine | | | | | | |  | | sandy loam | | | | | | |  | 18-30 |Sandy loam, |SM, SC, SC-SM|A-4 | 0 | 0 | 100 | 100 |85-95  | | fine sandy | | | | | | |  | | loam | | | | | | |  | 30-36 |Sand, fine |SM, SC-SM |A-2-4, A-3 | 0 | 0 | 100 | 100 |80-95  | | sand, loamy | | | | | | |  | | fine sand, | | | | | | |  | | loamy sand | | | | | | |  | 36-60 |Fine sand, |SM |A-3, A-2 | 0 | 0 | 100 | 100 |70-90  | | loamy fine | | | | | | |  | | sand, loamy | | | | | | |  | | sand, sand | | | | | | |  | | | | | | | | |  Urban land. | | | | | | | | |  | | | | | | | | | 
Table 18.--Engineering Index Properties--Continued _______________________________________________________________________________________________________

 | | | Classification | Fragments | Percentage pass Map symbol | Depth | USDA texture |___________________________|_____________| sieve number- and | | | | | >10 | 3-10 |___________________ soil name | | | Unified | AASHTO |inches|inches| 4 | 10 | 40 _______________________________________________________________________________________________________ | In | | | | Pct | Pct | | |  | | | | | | | | | 4175B: | | | | | | | | |  Dickinson-------| 0-9 |Loam, sandy |SM, SC, SC-SM|A-4, A-2 | 0 | 0 | 100 | 100 |85-95  | | loam, fine | | | | | | |  | | sandy loam | | | | | | |  | 9-18 |Loam, sandy |SM, SC, SC-SM|A-4 | 0 | 0 | 100 | 100 |85-95  | | loam, fine | | | | | | |  | | sandy loam | | | | | | |  | 18-30 |Sandy loam, |SM, SC, SC-SM|A-4 | 0 | 0 | 100 | 100 |85-95  | | fine sandy | | | | | | |  | | loam | | | | | | |  | 30-36 |Loamy sand, |SM, SC-SM |A-2-4, A-3 | 0 | 0 | 100 | 100 |80-95  | | sand, fine | | | | | | |  | | sand, loamy | | | | | | |  | | fine sand | | | | | | |  | 36-60 |Fine sand, |SM |A-3, A-2 | 0 | 0 | 100 | 100 |70-90  | | loamy fine | | | | | | |  | | sand, loamy | | | | | | |  | | sand, sand | | | | | | |  | | | | | | | | |  Urban land. | | | | | | | | |  | | | | | | | | | 4177: | | | | | | | | |  Saude-----------| 0-7 |Loam |CL |A-6 | 0 | 0 | 100 |90-100|70-90  | 7-13 |Loam |CL |A-6 | 0 | 0 | 100 |90-100|70-90  | 13-16 |Loam |CL, CL-ML, |A-4, A-6 | 0 | 0-3 |90-95 |90-95 |70-90  | | | SC-SM | | | | | |  | 16-24 |Loam |CL, CL-ML, |A-4, A-6 | 0 | 0-3 |90-95 |90-95 |70-90  | | | SC-SM | | | | | |  | 24-28 |Sandy loam |CL, SC, |A-4, A-6 | 0 | 0-3 |90-95 |90-95 |60-85  | | | CL-ML, SC-SM| | | | | |  | 28-36 |Loamy sand |SW, SM |A-1-b | 0 | 0-3 |85-95 |85-95 |20-40  | 36-60 |Sand, loamy |SW, SM, GP, |A-1-b | 0 | 2-10 |50-90 |50-85 |15-35  | | sand, gravelly| GM | | | | | |  | | coarse sand | | | | | | |  | | | | | | | | |  Urban land. | | | | | | | | |  | | | | | | | | | 
Table 18.--Engineering Index Properties--Continued _______________________________________________________________________________________________________

 | | | Classification | Fragments | Percentage pass Map symbol | Depth | USDA texture |___________________________|_____________| sieve number- and | | | | | >10 | 3-10 |___________________ soil name | | | Unified | AASHTO |inches|inches| 4 | 10 | 40 _______________________________________________________________________________________________________ | In | | | | Pct | Pct | | |  | | | | | | | | | 4177B: | | | | | | | | |  Saude-----------| 0-7 |Loam |CL |A-6 | 0 | 0 | 100 |90-100|70-90  | 7-13 |Loam |CL |A-6 | 0 | 0 | 100 |90-100|70-90  | 13-16 |Loam |CL, CL-ML, |A-4, A-6 | 0 | 0-3 |90-95 |90-95 |70-90  | | | SC-SM | | | | | |  | 16-24 |Loam |CL, CL-ML, |A-4, A-6 | 0 | 0-3 |90-95 |90-95 |70-90  | | | SC-SM | | | | | |  | 24-28 |Sandy loam |CL, SC, |A-4, A-6 | 0 | 0-3 |90-95 |90-95 |60-85  | | | CL-ML, SC-SM| | | | | |  | 28-36 |Loamy sand |SW, SM |A-1-b | 0 | 0-3 |85-95 |85-95 |20-40  | 36-60 |Sand, loamy |SW, SM, GP, |A-1-b | 0 | 2-10 |50-90 |50-85 |15-35  | | sand, gravelly| GM | | | | | |  | | coarse sand | | | | | | |  | | | | | | | | |  Urban land. | | | | | | | | |  | | | | | | | | | 4178: | | | | | | | | |  Waukee----------| 0-8 |Silt loam, loam|CL |A-6 | 0 | 0 | 100 |90-100|70-90  | 8-16 |Silt loam, loam|CL |A-6 | 0 | 0 | 100 |90-100|70-90  | 16-20 |Loam, sandy |CL, SC-SM, |A-6, A-4 | 0 | 0-3 |90-95 |90-95 |65-85  | | clay loam | SC, CL-ML | | | | | |  | 20-35 |Loam, sandy |CL, SC-SM, |A-6, A-4 | 0 | 0-3 |90-95 |90-95 |65-85  | | clay loam | SC, CL-ML | | | | | |  | 35-44 |Gravelly loamy |SW, SM, |A-1-b | 0-5 | 0-10 |60-90 |60-85 |20-40  | | coarse sand | SP-SM, SP | | | | | |  | 44-66 |Gravelly loamy |SW, SM, |A-1-b | 0-5 | 0-10 |60-90 |60-85 |20-40  | | coarse sand, | SP-SM, SP | | | | | |  | | gravelly sand | | | | | | |  | | | | | | | | |  Urban land. | | | | | | | | |  | | | | | | | | | 4184: | | | | | | | | |  Klinger---------| 0-9 |Silt loam, |CL |A-7-6 | 0 | 0 | 100 | 100 | 100  | | silty clay | | | | | | |  | | loam | | | | | | |  | 9-13 |Silt loam, |CL |A-7-6 | 0 | 0 | 100 | 100 | 100  | | silty clay | | | | | | |  | | loam | | | | | | |  | 13-19 |Silty clay loam|CL |A-7-6 | 0 | 0 | 100 | 100 | 100  | 19-31 |Silty clay loam|CL |A-7-6 | 0 | 0 | 100 | 100 | 100  | 31-40 |Clay loam, loam|CL |A-6 | 0 | 0-5 |90-95 |85-95 |75-85  | 40-46 |Loam, clay loam|CL |A-6 | 0 | 0-5 |90-95 |85-95 |75-85  | 46-64 |Loam |CL |A-6 | 0 | 0-5 |90-95 |85-95 |75-85  | | | | | | | | |  Urban land. | | | | | | | | |  | | | | | | | | | 
Table 18.--Engineering Index Properties--Continued _______________________________________________________________________________________________________

 | | | Classification | Fragments | Percentage pass Map symbol | Depth | USDA texture |___________________________|_____________| sieve number- and | | | | | >10 | 3-10 |___________________ soil name | | | Unified | AASHTO |inches|inches| 4 | 10 | 40 _______________________________________________________________________________________________________ | In | | | | Pct | Pct | | |  | | | | | | | | | 4198B: | | | | | | | | |  Floyd-----------| 0-8 |Clay loam, loam|OL, ML, CL |A-4, A-6 | 0 | 0 | 100 | 100 |80-90  | 8-24 |Clay loam, loam|OL, ML, CL |A-4, A-6 | 0 | 0 | 100 | 100 |80-90  | 24-33 |Loam, sandy |CL |A-6 | 0 | 0-5 |90-95 |85-95 |50-70  | | clay loam | | | | | | |  | 33-41 |Sandy loam, |SM, SC-SM |A-2-4 | 0 | 0-5 |90-95 |85-95 |50-70  | | sandy clay | | | | | | |  | | loam, loam | | | | | | |  | 41-50 |Clay loam, loam|CL |A-6 | 0 | 0-5 |90-95 |85-95 |80-90  | 50-60 |Clay loam, loam|CL |A-6 | 0 | 0-5 |90-95 |85-95 |80-90  | | | | | | | | |  Urban land. | | | | | | | | |  | | | | | | | | | 4226: | | | | | | | | |  Lawler, 24 to 40| | | | | | | | |  inches to sand | | | | | | | | |  and gravel-----| 0-8 |Silt loam, loam|CL, ML |A-6, A-7 | 0 | 0 | 100 |90-100|70-90  | 8-15 |Silt loam, loam|CL, ML |A-6, A-7 | 0 | 0 | 100 |90-100|70-90  | 15-21 |Loam, clay loam|CL, ML |A-6, A-7 | 0 | 0 | 100 |90-100|70-90  | 21-32 |Sandy clay |CL, SC |A-6 | 0 | 0-5 |90-95 |85-95 |70-85  | | loam, loam | | | | | | |  | 32-37 |Sandy clay loam|CL, SC |A-6 | 0 | 0-5 |90-95 |85-95 |70-85  | 37-60 |Coarse sand, |SW, GP, SP, |A-1 | 0 | 0-10 |50-90 |50-85 |15-35  | | loamy coarse | SW-SM | | | | | |  | | sand, very | | | | | | |  | | gravelly sand,| | | | | | |  | | very gravelly | | | | | | |  | | loamy sand | | | | | | |  | | | | | | | | |  Urban land. | | | | | | | | |  | | | | | | | | | 4284: | | | | | | | | |  Flagler---------| 0-8 |Sandy loam, |SC, SC-SM |A-2-4, A-4 | 0 | 0 |95-100|90-95 |60-70  | | fine sandy | | | | | | |  | | loam | | | | | | |  | 8-15 |Sandy loam, |SC, SC-SM |A-2-4, A-4 | 0 | 0 |95-100|90-95 |60-70  | | fine sandy | | | | | | |  | | loam | | | | | | |  | 15-22 |Sandy loam |SC, SC-SM |A-2-4, A-4 | 0 | 0 |95-100|90-95 |50-70  | 22-33 |Sandy loam |SC, SC-SM |A-2-4, A-4 | 0 | 0 |95-100|90-95 |50-70  | 33-65 |Sand, loamy |SP-SM, SW, |A-1-b | 0 | 0-2 |85-95 |85-95 |20-40  | | sand | SP, SW-SM | | | | | |  | | | | | | | | |  Urban land. | | | | | | | | |  | | | | | | | | | 
Table 18.--Engineering Index Properties--Continued _______________________________________________________________________________________________________

 | | | Classification | Fragments | Percentage pass Map symbol | Depth | USDA texture |___________________________|_____________| sieve number- and | | | | | >10 | 3-10 |___________________ soil name | | | Unified | AASHTO |inches|inches| 4 | 10 | 40 _______________________________________________________________________________________________________ | In | | | | Pct | Pct | | |  | | | | | | | | | 4284B: | | | | | | | | |  Flagler---------| 0-8 |Sandy loam, |SC, SC-SM |A-2-4, A-4 | 0 | 0 |95-100|90-95 |60-70  | | fine sandy | | | | | | |  | | loam | | | | | | |  | 8-15 |Sandy loam, |SC, SC-SM |A-2-4, A-4 | 0 | 0 |95-100|90-95 |60-70  | | fine sandy | | | | | | |  | | loam | | | | | | |  | 15-22 |Sandy loam |SC, SC-SM |A-2-4, A-4 | 0 | 0 |95-100|90-95 |50-70  | 22-33 |Sandy loam |SC, SC-SM |A-2-4, A-4 | 0 | 0 |95-100|90-95 |50-70  | 33-65 |Sand, loamy |SP-SM, SW, |A-1-b | 0 | 0-2 |85-95 |85-95 |20-40  | | sand | SP, SW-SM | | | | | |  | | | | | | | | |  Urban land. | | | | | | | | |  | | | | | | | | | 4377B: | | | | | | | | |  Dinsdale--------| 0-7 |Silt loam, |CL |A-6, A-7-6 | 0 | 0 | 100 | 100 | 100  | | silty clay | | | | | | |  | | loam | | | | | | |  | 7-15 |Silt loam, |CL |A-6, A-7-6 | 0 | 0 | 100 | 100 | 100  | | silty clay | | | | | | |  | | loam | | | | | | |  | 15-21 |Silty clay loam|CL |A-7-6 | 0 | 0 | 100 | 100 | 100  | 21-36 |Silty clay loam|CL |A-7-6 | 0 | 0 | 100 | 100 | 100  | 36-50 |Clay loam, loam|CL |A-6 | 0 | 0-5 |90-95 |90-95 |75-85  | 50-80 |Clay loam, loam|CL |A-6 | 0 | 0-5 |90-95 |90-95 |75-85  | | | | | | | | |  Urban land. | | | | | | | | |  | | | | | | | | | 4377C: | | | | | | | | |  Dinsdale--------| 0-7 |Silt loam, |CL |A-6, A-7-6 | 0 | 0 | 100 | 100 | 100  | | silty clay | | | | | | |  | | loam | | | | | | |  | 7-15 |Silt loam, |CL |A-6, A-7-6 | 0 | 0 | 100 | 100 | 100  | | silty clay | | | | | | |  | | loam | | | | | | |  | 15-21 |Silty clay loam|CL |A-7-6 | 0 | 0 | 100 | 100 | 100  | 21-36 |Silty clay loam|CL |A-7-6 | 0 | 0 | 100 | 100 | 100  | 36-50 |Clay loam, loam|CL |A-6 | 0 | 0-5 |90-95 |90-95 |75-85  | 50-80 |Clay loam, loam|CL |A-6 | 0 | 0-5 |90-95 |90-95 |75-85  | | | | | | | | |  Urban land. | | | | | | | | |  | | | | | | | | | 
Table 18.--Engineering Index Properties--Continued _______________________________________________________________________________________________________

 | | | Classification | Fragments | Percentage pass Map symbol | Depth | USDA texture |___________________________|_____________| sieve number- and | | | | | >10 | 3-10 |___________________ soil name | | | Unified | AASHTO |inches|inches| 4 | 10 | 40 _______________________________________________________________________________________________________ | In | | | | Pct | Pct | | |  | | | | | | | | | 4382: | | | | | | | | |  Maxfield--------| 0-7 |Silty clay loam|CL, CH |A-7-6 | 0 | 0 | 100 | 100 | 100  | 7-17 |Silty clay loam|CL, CH |A-7-6 | 0 | 0 | 100 | 100 | 100  | 17-23 |Silty clay loam|CH, CL |A-7-6 | 0 | 0 | 100 | 100 | 100  | 23-32 |Silt loam |CH, CL |A-7-6 | 0 | 0 | 100 | 100 | 100  | 32-45 |Loam |CL |A-6 | 0 | 0-5 |90-95 |90-95 |75-85  | 45-66 |Loam |CL |A-6 | 0 | 0-5 |90-95 |90-95 |75-85  | | | | | | | | |  Urban land. | | | | | | | | |  | | | | | | | | | 4391B: | | | | | | | | |  Clyde-----------| 0-8 |Loam, silty |OL, MH, ML, |A-7 | 0 | 0-5 |95-100|95-100|80-90  | | clay loam, | OH | | | | | |  | | clay loam | | | | | | |  | 8-17 |Silty clay |OL, MH, ML, |A-7 | 0 | 0-5 |95-100|95-100|80-90  | | loam, clay | OH | | | | | |  | | loam | | | | | | |  | 17-23 |Silty clay |OL, MH, ML, |A-7 | 0 | 0-5 |95-100|95-100|80-90  | | loam, clay | OH | | | | | |  | | loam | | | | | | |  | 23-41 |Silty clay |CL, ML |A-6, A-7 | 0 | 0-5 |95-100|90-95 |75-90  | | loam, clay | | | | | | |  | | loam | | | | | | |  | 41-44 |Sandy loam, |SM, SC-SM |A-2-4 | 0 | 2-5 |85-95 |85-95 |50-80  | | loam | | | | | | |  | 44-54 |Loam, clay loam|CL, SC |A-6 | 0-5 | 2-5 |90-95 |85-95 |75-90  | 54-66 |Loam, clay loam|CL, SC |A-6 | 0-5 | 2-5 |90-95 |85-95 |75-90  | | | | | | | | |  Floyd-----------| 0-8 |Clay loam, loam|OL, ML, CL |A-4, A-6 | 0 | 0 | 100 | 100 |80-90  | 8-24 |Clay loam, loam|OL, ML, CL |A-4, A-6 | 0 | 0 | 100 | 100 |80-90  | 24-33 |Loam, sandy |CL |A-6 | 0 | 0-5 |90-95 |85-95 |50-70  | | clay loam | | | | | | |  | 33-41 |Sandy loam, |SM, SC-SM |A-2-4 | 0 | 0-5 |90-95 |85-95 |50-70  | | sandy clay | | | | | | |  | | loam, loam | | | | | | |  | 41-50 |Clay loam, loam|CL |A-6 | 0 | 0-5 |90-95 |85-95 |80-90  | 50-60 |Clay loam, loam|CL |A-6 | 0 | 0-5 |90-95 |85-95 |80-90  | | | | | | | | |  Urban land. | | | | | | | | |  | | | | | | | | | 
Table 18.--Engineering Index Properties--Continued _______________________________________________________________________________________________________

 | | | Classification | Fragments | Percentage pass Map symbol | Depth | USDA texture |___________________________|_____________| sieve number- and | | | | | >10 | 3-10 |___________________ soil name | | | Unified | AASHTO |inches|inches| 4 | 10 | 40 _______________________________________________________________________________________________________ | In | | | | Pct | Pct | | |  | | | | | | | | | 4398: | | | | | | | | |  Tripoli---------| 0-9 |Silty clay |CL |A-6, A-7 | 0 | 0 |95-100|95-100|85-95  | | loam, clay | | | | | | |  | | loam | | | | | | |  | 9-18 |Silty clay |CL |A-6, A-7 | 0 | 0 |95-100|95-100|85-95  | | loam, clay | | | | | | |  | | loam | | | | | | |  | 18-24 |Clay loam |CL |A-6 | 0 | 0-5 |90-95 |90-95 |75-85  | 24-38 |Loam |CL |A-6 | 0 | 0-5 |90-95 |90-95 |75-85  | 38-66 |Clay loam, loam|CL, SC |A-6 | 0 | 0-5 |90-95 |90-95 |75-85  | | | | | | | | |  Urban land. | | | | | | | | |  | | | | | | | | | 4399: | | | | | | | | |  Readlyn---------| 0-7 |Clay loam, loam|CL |A-6 | 0 | 0 |95-100|95-100|85-95  | 7-17 |Clay loam, loam|CL |A-6 | 0 | 0 |95-100|95-100|85-95  | 17-43 |Loam |CL, SC |A-6 | 0 | 0-5 |90-95 |90-95 |75-85  | 43-52 |Loam |CL, SC |A-6 | 0 | 0-5 |90-95 |90-95 |75-85  | 52-60 |Loam |CL, SC |A-6 | 0 | 0-5 |90-95 |90-95 |75-85  | | | | | | | | |  Urban land. | | | | | | | | |  | | | | | | | | | 4408B: | | | | | | | | |  Olin------------| 0-7 |Sandy loam, |SC-SM, SC |A-2, A-4 | 0 | 0 | 100 |95-100|85-95  | | fine sandy | | | | | | |  | | loam | | | | | | |  | 7-23 |Fine sandy |SC-SM, SC |A-2, A-4 | 0 | 0 | 100 |95-100|85-95  | | loam, sandy | | | | | | |  | | loam | | | | | | |  | 23-31 |Sandy loam |SC-SM, SC |A-2, A-4 | 0 | 0 | 100 |95-100|85-95  | 31-52 |Sandy clay |CL |A-6 | 0 | 0-5 |90-95 |90-95 |80-90  | | loam, clay | | | | | | |  | | loam, loam | | | | | | |  | 52-80 |Clay loam, loam|CL |A-6 | 0 | 0-5 |90-95 |90-95 |80-90  | | | | | | | | |  Urban land. | | | | | | | | |  | | | | | | | | | 
Table 18.--Engineering Index Properties--Continued _______________________________________________________________________________________________________

 | | | Classification | Fragments | Percentage pass Map symbol | Depth | USDA texture |___________________________|_____________| sieve number- and | | | | | >10 | 3-10 |___________________ soil name | | | Unified | AASHTO |inches|inches| 4 | 10 | 40 _______________________________________________________________________________________________________ | In | | | | Pct | Pct | | |  | | | | | | | | | 4408C: | | | | | | | | |  Olin------------| 0-7 |Sandy loam, |SC-SM, SC |A-2, A-4 | 0 | 0 | 100 |95-100|85-95  | | fine sandy | | | | | | |  | | loam | | | | | | |  | 7-23 |Fine sandy |SC-SM, SC |A-2, A-4 | 0 | 0 | 100 |95-100|85-95  | | loam, sandy | | | | | | |  | | loam | | | | | | |  | 23-31 |Sandy loam |SC-SM, SC |A-2, A-4 | 0 | 0 | 100 |95-100|85-95  | 31-52 |Sandy clay |CL |A-6 | 0 | 0-5 |90-95 |90-95 |80-90  | | loam, clay | | | | | | |  | | loam, loam | | | | | | |  | 52-80 |Clay loam, loam|CL |A-6 | 0 | 0-5 |90-95 |90-95 |80-90  | | | | | | | | |  Urban land. | | | | | | | | |  | | | | | | | | | 4426B: | | | | | | | | |  Aredale---------| 0-7 |Loam |CL, CL-ML |A-4, A-6 | 0 | 0 |95-100|95-100|85-95  | 7-19 |Loam |CL, CL-ML |A-4, A-6 | 0 | 0 |95-100|95-100|85-95  | 19-33 |Clay loam, loam|CL |A-6 | 0 | 0-5 |95-100|95-100|80-90  | 33-55 |Sandy loam |SC, SM, SC-SM|A-2-4, A-4 | 0 | 0-5 |95-100|95-100|70-90  | 55-70 |Loam |CL |A-6 | 0 | 0-5 |90-95 |85-95 |80-90  | | | | | | | | |  Urban land. | | | | | | | | |  | | | | | | | | | 4426C: | | | | | | | | |  Aredale---------| 0-7 |Loam |CL, CL-ML |A-6, A-4 | 0 | 0 |95-100|95-100|85-95  | 7-19 |Loam |CL, CL-ML |A-6, A-4 | 0 | 0 |95-100|95-100|85-95  | 19-33 |Clay loam, loam|CL |A-6 | 0 | 0-5 |95-100|95-100|80-90  | 33-55 |Sandy loam |SC, SM, SC-SM|A-2-4, A-4 | 0 | 0-5 |95-100|95-100|70-90  | 55-70 |Loam |CL |A-6 | 0 | 0-5 |90-95 |85-95 |80-90  | | | | | | | | |  Urban land. | | | | | | | | |  | | | | | | | | | 4585: | | | | | | | | |  Spillville, | | | | | | | | |  occasionally | | | | | | | | |  flooded--------| 0-8 |Loam |CL |A-6 | 0 | 0 | 100 |95-100|85-95  | 8-54 |Loam |CL |A-6 | 0 | 0 | 100 |95-100|85-95  | 54-60 |Sandy loam, |CL, CL-ML, |A-4, A-6 | 0 | 0 | 100 |95-100|80-90  | | sandy clay | SC-SM, SC | | | | | |  | | loam, loam | | | | | | |  | | | | | | | | | 
Table 18.--Engineering Index Properties--Continued _______________________________________________________________________________________________________

 | | | Classification | Fragments | Percentage pass Map symbol | Depth | USDA texture |___________________________|_____________| sieve number- and | | | | | >10 | 3-10 |___________________ soil name | | | Unified | AASHTO |inches|inches| 4 | 10 | 40 _______________________________________________________________________________________________________ | In | | | | Pct | Pct | | |  | | | | | | | | | 4585: | | | | | | | | |  Coland, | | | | | | | | |  occasionally | | | | | | | | |  flooded--------| 0-8 |Clay loam, |CL |A-7-6, A-6 | 0 | 0 | 100 | 100 |95-10 | | silty clay | | | | | | |  | | loam | | | | | | |  | 8-32 |Clay loam, |CL |A-7-6, A-6 | 0 | 0 | 100 | 100 |95-10 | | silty clay | | | | | | |  | | loam | | | | | | |  | 32-40 |Loam, clay loam|CL |A-7-6, A-6 | 0 | 0 | 100 | 100 |95-10 | 40-44 |Clay loam, |CL, SC, |A-4, A-6 | 0 | 0 | 100 |90-100|60-70  | | loam, sandy | CL-ML, SC-SM| | | | | |  | | loam | | | | | | |  | 44-52 |Sandy loam, |CL, SC, |A-4, A-6 | 0 | 0 | 100 |90-100|60-70  | | clay loam, | CL-ML, SC-SM| | | | | |  | | loam | | | | | | |  | 52-60 |Loam, clay |CL, SC, |A-4, A-6 | 0 | 0 | 100 |90-100|60-70  | | loam, sandy | CL-ML, SC-SM| | | | | |  | | loam | | | | | | |  | | | | | | | | |  Urban land. | | | | | | | | |  | | | | | | | | | 4761: | | | | | | | | |  Franklin--------| 0-6 |Silt loam |CL-ML, CL |A-4, A-6 | 0 | 0 | 100 | 100 | 100  | 6-13 |Silt loam |CL-ML, CL |A-4, A-6 | 0 | 0 | 100 | 100 | 100  | 13-18 |Silty clay loam|CL |A-7-6 | 0 | 0 | 100 | 100 | 100  | 18-28 |Silty clay loam|CL |A-7-6 | 0 | 0 | 100 | 100 | 100  | 28-37 |Clay loam, loam|CL |A-6 | 0 | 0-5 |95-100|90-95 |75-85  | 37-46 |Loam, clay loam|CL |A-6 | 0 | 0-5 |95-100|90-95 |75-85  | 46-64 |Loam, clay loam|CL |A-6 | 0 | 0-5 |95-100|90-95 |75-85  | 64-74 |Clay loam, loam|CL |A-6 | 0 | 0-5 |95-100|90-95 |75-85  | | | | | | | | |  Urban land. | | | | | | | | |  | | | | | | | | | 4771B: | | | | | | | | |  Waubeek---------| 0-7 |Silt loam |CL-ML, CL |A-6, A-4 | 0 | 0 | 100 | 100 | 100  | 7-13 |Silt loam |CL-ML, CL |A-4, A-6 | 0 | 0 | 100 | 100 | 100  | 13-29 |Silt loam, |CL |A-7-6 | 0 | 0 | 100 | 100 | 100  | | silty clay | | | | | | |  | | loam | | | | | | |  | 29-34 |Clay loam, loam|CL |A-6 | 0 | 0-5 |90-95 |85-95 |75-85  | 34-45 |Loam, clay loam|CL |A-6 | 0 | 0-5 |90-95 |85-95 |75-85  | 45-67 |Clay loam, loam|CL |A-6 | 0 | 0-5 |90-95 |85-95 |75-85  | | | | | | | | |  Urban land. | | | | | | | | |  | | | | | | | | | 
Table 18.--Engineering Index Properties--Continued _______________________________________________________________________________________________________

 | | | Classification | Fragments | Percentage pass Map symbol | Depth | USDA texture |___________________________|_____________| sieve number- and | | | | | >10 | 3-10 |___________________ soil name | | | Unified | AASHTO |inches|inches| 4 | 10 | 40 _______________________________________________________________________________________________________ | In | | | | Pct | Pct | | |  | | | | | | | | | 4771D: | | | | | | | | |  Waubeek---------| 0-7 |Silt loam |CL-ML, CL |A-6, A-4 | 0 | 0 | 100 | 100 | 100  | 7-13 |Silt loam |CL-ML, CL |A-4, A-6 | 0 | 0 | 100 | 100 | 100  | 13-29 |Silt loam, |CL |A-7-6 | 0 | 0 | 100 | 100 | 100  | | silty clay | | | | | | |  | | loam | | | | | | |  | 29-34 |Clay loam, loam|CL |A-6 | 0 | 0-5 |90-95 |85-95 |75-85  | 34-45 |Loam, clay loam|CL |A-6 | 0 | 0-5 |90-95 |85-95 |75-85  | 45-67 |Clay loam, loam|CL |A-6 | 0 | 0-5 |90-95 |85-95 |75-85  | | | | | | | | |  Urban land. | | | | | | | | |  | | | | | | | | | 4798: | | | | | | | | |  Protivin--------| 0-8 |Clay loam, loam|CL |A-7, A-6 | 0 | 0 |95-100|95-100|85-95  | 8-15 |Clay loam, loam|CL |A-7, A-6 | 0 | 0 |95-100|95-100|85-95  | 15-19 |Loam, clay loam|CL |A-6 | 0 | 0-5 |90-95 |85-95 |75-85  | 19-23 |Loam, clay loam|CL |A-6 | 0 | 0-5 |90-95 |85-95 |75-85  | 23-45 |Clay loam |CL |A-6 | 0 | 0-5 |90-95 |85-95 |75-85  | 45-60 |Clay loam |CL |A-6 | 0 | 2-5 |90-95 |85-95 |75-85  | | | | | | | | |  Urban land. | | | | | | | | |  | | | | | | | | | 4911B: | | | | | | | | |  Colo------------| 0-8 |Silt loam, |CL, CH |A-7 | 0 | 0 | 100 | 100 |90-10 | | silty clay | | | | | | |  | | loam | | | | | | |  | 8-34 |Silt loam, |CL, CH |A-7 | 0 | 0 | 100 | 100 |90-10 | | silty clay | | | | | | |  | | loam | | | | | | |  | 34-40 |Silty clay loam|CL, CH |A-7 | 0 | 0 | 100 | 100 |90-10 | 40-46 |Silty clay loam|CL, CH |A-7 | 0 | 0 | 100 | 100 |90-10 | 46-52 |Silty clay loam|CL, CH |A-7 | 0 | 0 | 100 | 100 |90-10 | 52-60 |Clay loam, |CL, CH |A-7 | 0 | 0 | 100 | 100 |95-10 | | silty clay | | | | | | |  | | loam, silt | | | | | | |  | | loam | | | | | | |  | | | | | | | | | 
Table 18.--Engineering Index Properties--Continued _______________________________________________________________________________________________________

 | | | Classification | Fragments | Percentage pass Map symbol | Depth | USDA texture |___________________________|_____________| sieve number- and | | | | | >10 | 3-10 |___________________ soil name | | | Unified | AASHTO |inches|inches| 4 | 10 | 40 _______________________________________________________________________________________________________ | In | | | | Pct | Pct | | |  | | | | | | | | | 4911B: | | | | | | | | |  Ely-------------| 0-8 |Silt loam, |CL, OL, OH, |A-7-6, A-6 | 0 | 0 | 100 | 100 |95-10 | | silty clay | MH | | | | | |  | | loam | | | | | | |  | 8-24 |Silt loam, |CL, OL, OH, |A-7-6, A-6 | 0 | 0 | 100 | 100 |95-10 | | silty clay | MH | | | | | |  | | loam | | | | | | |  | 24-32 |Silty clay loam|CL, ML |A-6, A-7-6 | 0 | 0 | 100 | 100 |95-10 | 32-47 |Silty clay loam|CL, ML |A-7-6, A-6 | 0 | 0 | 100 | 100 |95-10 | 47-58 |Silty clay loam|CL |A-6 | 0 | 0 | 100 | 100 |90-10 | 58-80 |Loam, clay |CL |A-6 | 0 | 0 |95-100|95-100|80-95  | | loam, silt | | | | | | |  | | loam, silty | | | | | | |  | | clay loam | | | | | | |  | | | | | | | | |  Urban land. | | | | | | | | |  | | | | | | | | | 4933: | | | | | | | | |  Sawmill, | | | | | | | | |  occasionally | | | | | | | | |  flooded--------| 0-10 |Silty clay loam|CL |A-6, A-7 | 0 | 0 | 100 | 100 |95-10 | 10-25 |Silty clay loam|CL |A-6, A-7 | 0 | 0 | 100 | 100 |95-10 | 25-32 |Silty clay loam|CL |A-6, A-7 | 0 | 0 | 100 | 100 |95-10 | 32-40 |Silty clay loam|CL |A-6, A-7, A-4| 0 | 0 | 100 | 100 |85-10 | 40-58 |Silty clay |CL |A-6, A-7, A-4| 0 | 0 | 100 | 100 |85-10 | | loam, clay | | | | | | |  | | loam, loam | | | | | | |  | 58-65 |Clay loam, |CL |A-4, A-6, A-7| 0 | 0 | 100 | 100 |75-10 | | loam, silty | | | | | | |  | | clay loam | | | | | | |  | | | | | | | | |  Urban land. | | | | | | | | |  | | | | | | | | | 4946: | | | | | | | | |  Orthents, loamy.| | | | | | | | |  | | | | | | | | |  Urban land. | | | | | | | | |  | | | | | | | | | 5010. | | | | | | | | |  Pits, sand and | | | | | | | | |  gravel | | | | | | | | |  | | | | | | | | | 5030. | | | | | | | | |  Pits, limestone | | | | | | | | |  quarries | | | | | | | | |  | | | | | | | | | 
Table 18.--Engineering Index Properties--Continued _______________________________________________________________________________________________________

 | | | Classification | Fragments | Percentage pass Map symbol | Depth | USDA texture |___________________________|_____________| sieve number- and | | | | | >10 | 3-10 |___________________ soil name | | | Unified | AASHTO |inches|inches| 4 | 10 | 40 _______________________________________________________________________________________________________ | In | | | | Pct | Pct | | |  | | | | | | | | | 5040. | | | | | | | | |  Orthents, loamy | | | | | | | | |  | | | | | | | | | 5053. | | | | | | | | |  Psammaquents, | | | | | | | | |  frequently | | | | | | | | |  flooded | | | | | | | | |  | | | | | | | | | 5080. | | | | | | | | |  Orthents, | | | | | | | | |  sanitary | | | | | | | | |  landfill | | | | | | | | |  | | | | | | | | | AW. | | | | | | | | |  Animal waste | | | | | | | | |  | | | | | | | | | SL. | | | | | | | | |  Sewage lagoon | | | | | | | | |  | | | | | | | | | W. | | | | | | | | |  Water | | | | | | | | |  | | | | | | | | | _______________________________________________________________________________________________________
448 Soil Survey of

Table 19.--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 | Clay | Moist | Permea- |Available| Linear | Organic |_______________|erodi-|erodi-

 and soil name | | | bulk | bility | water |extensi- | matter | | | |bility|bility

 | | | density | |capacity | bility | | Kw | Kf | T |group |index ________________________________________________________________________________________________________________________

 | In | Pct | g/cc | In/hr | In/in | Pct | Pct | | | | |

 | | | | | | | | | | | |

7: | | | | | | | | | | | |

 Wiota-----------------| 0-8 | 24-32|1.30-1.35| 0.6-2 |0.21-0.23| 2.3-4.8 | 3.5-4.5 | .28 | .28 | 5 | 6 | 48

 | 8-22 | 24-32|1.30-1.35| 0.6-2 |0.21-0.23| 2.3-4.8 | 1.0-3.0 | .28 | .28 | | |

 | 22-28 | 30-36|1.30-1.35| 0.6-2 |0.18-0.20| 4.2-6.1 | 1.0-2.0 | .28 | .28 | | |

 | 28-48 | 30-36|1.30-1.40| 0.6-2 |0.18-0.20| 4.2-6.1 | 0.5-1.0 | .43 | .43 | | |

 | 48-54 | 25-34|1.40-1.45| 0.6-2 |0.18-0.20| 2.6-5.4 | 0.0-0.5 | .43 | .43 | | |

 | 54-80 | 4-10|1.55-1.65| 6-20 |0.08-0.10| 0.0-0.0 | 0.0-0.5 | .20 | .20 | | |

 | | | | | | | | | | | |

41: | | | | | | | | | | | |

 Sparta----------------| 0-11 | 3-10|1.20-1.40| 2-6 |0.09-0.12| 0.0-0.0 | 1.0-2.0 | .17 | .17 | 5 | 2 | 134

 | 11-15 | 3-10|1.20-1.40| 2-6 |0.09-0.12| 0.0-0.0 | 0.5-1.0 | .17 | .17 | | |

 | 15-34 | 1-8 |1.40-1.60| 6-20 |0.05-0.11| 0.0-0.0 | 0.0-0.5 | .15 | .15 | | |

 | 34-60 | 0-5 |1.50-1.70| 6-20 |0.04-0.07| 0.0-0.0 | 0.0-0.5 | .15 | .15 | | |

 | | | | | | | | | | | |

41B: | | | | | | | | | | | |

 Sparta----------------| 0-11 | 3-10|1.20-1.40| 2-6 |0.09-0.12| 0.0-0.0 | 1.0-2.0 | .17 | .17 | 5 | 2 | 134

 | 11-15 | 3-10|1.20-1.40| 2-6 |0.09-0.12| 0.0-0.0 | 0.5-1.0 | .17 | .17 | | |

 | 15-34 | 1-8 |1.40-1.60| 6-20 |0.05-0.11| 0.0-0.0 | 0.0-0.5 | .15 | .15 | | |

 | 34-60 | 0-5 |1.50-1.70| 6-20 |0.04-0.07| 0.0-0.0 | 0.0-0.5 | .15 | .15 | | |

 | | | | | | | | | | | |

41C: | | | | | | | | | | | |

 Sparta----------------| 0-9 | 3-10|1.20-1.40| 2-6 |0.09-0.12| 0.0-0.0 | 1.0-2.0 | .17 | .17 | 5 | 2 | 134

 | 9-14 | 3-10|1.20-1.40| 2-6 |0.09-0.12| 0.0-0.0 | 0.5-1.0 | .17 | .17 | | |

 | 14-32 | 1-8 |1.40-1.60| 6-20 |0.05-0.11| 0.0-0.0 | 0.0-0.5 | .15 | .15 | | |

 | 32-60 | 0-5 |1.50-1.70| 6-20 |0.04-0.07| 0.0-0.0 | 0.0-0.5 | .15 | .15 | | |

 | | | | | | | | | | | |

41D: | | | | | | | | | | | |

 Sparta----------------| 0-9 | 3-10|1.20-1.40| 2-6 |0.09-0.12| 0.0-0.0 | 1.0-2.0 | .17 | .17 | 5 | 2 | 134

 | 9-14 | 3-10|1.20-1.40| 2-6 |0.09-0.12| 0.0-0.0 | 0.5-1.0 | .17 | .17 | | |

 | 14-30 | 1-8 |1.40-1.60| 6-20 |0.05-0.11| 0.0-0.0 | 0.0-0.5 | .15 | .15 | | |

 | 30-60 | 0-5 |1.50-1.70| 6-20 |0.04-0.07| 0.0-0.0 | 0.0-0.5 | .15 | .15 | | |

 | | | | | | | | | | | |

63B: | | | | | | | | | | | |

 Chelsea---------------| 0-8 | 8-15|1.50-1.55| 6-20 |0.10-0.15| 0.0-0.0 | 0.5-1.5 | .17 | .17 | 5 | 2 | 134

 | 8-36 | 5-10|1.55-1.70| 6-20 |0.06-0.08| 0.0-0.0 | 0.0-0.5 | .17 | .17 | | |

 | 36-70 | 5-10|1.55-1.70| 6-20 |0.06-0.08| 0.0-0.0 | 0.0-0.5 | .17 | .17 | | |

 | | | | | | | | | | | |

63C: | | | | | | | | | | | |

 Chelsea---------------| 0-8 | 8-15|1.50-1.55| 6-20 |0.10-0.15| 0.0-0.0 | 0.5-1.5 | .17 | .17 | 5 | 2 | 134

 | 8-36 | 5-10|1.55-1.70| 6-20 |0.06-0.08| 0.0-0.0 | 0.0-0.5 | .17 | .17 | | |

 | 36-70 | 5-10|1.55-1.70| 6-20 |0.06-0.08| 0.0-0.0 | 0.0-0.5 | .17 | .17 | | |

 | | | | | | | | | | | |

63D: | | | | | | | | | | | |

 Chelsea---------------| 0-8 | 8-15|1.50-1.55| 6-20 |0.10-0.15| 0.0-0.0 | 0.5-1.5 | .17 | .17 | 5 | 2 | 134

 | 8-32 | 5-10|1.55-1.70| 6-20 |0.06-0.08| 0.0-0.0 | 0.0-0.5 | .17 | .17 | | |

 | 32-70 | 5-10|1.55-1.70| 6-20 |0.06-0.08| 0.0-0.0 | 0.0-0.5 | .17 | .17 | | |

 | | | | | | | | | | | |

83B: | | | | | | | | | | | |

 Kenyon----------------| 0-8 | 18-26|1.40-1.45| 0.6-2 |0.20-0.22| 0.4-2.9 | 3.0-4.0 | .24 | .24 | 5 | 6 | 48

 | 8-14 | 18-26|1.40-1.45| 0.6-2 |0.20-0.22| 0.4-2.9 | 2.0-3.0 | .24 | .24 | | |

 | 14-19 | 18-26|1.40-1.45| 0.6-2 |0.20-0.22| 0.4-2.9 | 1.0-3.0 | .24 | .24 | | |

 | 19-47 | 20-30|1.45-1.65| 0.6-2 |0.17-0.19| 1.0-4.2 | 0.0-1.0 | .28 | .28 | | |

 | 47-54 | 20-24|1.65-1.75| 0.6-2 |0.17-0.19| 1.0-2.3 | 0.0-0.5 | .37 | .37 | | |

 | 54-76 | 20-24|1.65-1.75| 0.6-2 |0.17-0.19| 1.0-2.3 | 0.0-0.5 | .37 | .37 | | |

 | | | | | | | | | | | |
Black Hawk County, Iowa 449

Table 19.--Physical Properties of the Soils--Continued

________________________________________________________________________________________________________________________

 | | | | | | | |Erosion factors|Wind |Wind

 Map symbol | Depth | Clay | Moist | Permea- |Available| Linear | Organic |_______________|erodi-|erodi-

 and soil name | | | bulk | bility | water |extensi- | matter | | | |bility|bility

 | | | density | |capacity | bility | | Kw | Kf | T |group |index ________________________________________________________________________________________________________________________

 | In | Pct | g/cc | In/hr | In/in | Pct | Pct | | | | |

 | | | | | | | | | | | |

83C: | | | | | | | | | | | |

 Kenyon----------------| 0-8 | 18-26|1.40-1.45| 0.6-2 |0.20-0.22| 0.4-2.9 | 3.0-4.0 | .24 | .24 | 5 | 6 | 48

 | 8-14 | 18-26|1.40-1.45| 0.6-2 |0.20-0.22| 0.4-2.9 | 2.0-3.0 | .24 | .24 | | |

 | 14-19 | 18-26|1.40-1.45| 0.6-2 |0.20-0.22| 0.4-2.9 | 1.0-3.0 | .24 | .24 | | |

 | 19-47 | 20-30|1.45-1.65| 0.6-2 |0.17-0.19| 1.0-4.2 | 0.0-1.0 | .28 | .28 | | |

 | 47-54 | 20-24|1.65-1.75| 0.6-2 |0.17-0.19| 1.0-2.3 | 0.0-0.5 | .37 | .37 | | |

 | 54-76 | 20-24|1.65-1.75| 0.6-2 |0.17-0.19| 1.0-2.3 | 0.0-0.5 | .37 | .37 | | |

 | | | | | | | | | | | |

83C2: | | | | | | | | | | | |

 Kenyon, moderately | | | | | | | | | | | |

 eroded---------------| 0-8 | 18-26|1.40-1.45| 0.6-2 |0.20-0.22| 0.4-2.9 | 2.2-3.2 | .24 | .24 | 5 | 6 | 48

 | 8-14 | 18-26|1.40-1.45| 0.6-2 |0.20-0.22| 0.4-2.9 | 0.5-2.0 | .24 | .24 | | |

 | 14-40 | 20-30|1.45-1.65| 0.6-2 |0.17-0.19| 1.0-4.2 | 0.0-1.0 | .28 | .28 | | |

 | 40-46 | 20-24|1.65-1.75| 0.6-2 |0.17-0.19| 1.0-2.3 | 0.0-0.5 | .37 | .37 | | |

 | 46-76 | 20-24|1.65-1.75| 0.6-2 |0.17-0.19| 1.0-2.3 | 0.0-0.5 | .37 | .37 | | |

 | | | | | | | | | | | |

83D2: | | | | | | | | | | | |

 Kenyon, moderately | | | | | | | | | | | |

 eroded---------------| 0-8 | 18-26|1.40-1.45| 0.6-2 |0.20-0.22| 0.4-2.9 | 2.2-3.2 | .24 | .24 | 5 | 6 | 48

 | 8-14 | 18-26|1.40-1.45| 0.6-2 |0.20-0.22| 0.4-2.9 | 0.5-2.0 | .24 | .24 | | |

 | 14-40 | 20-30|1.45-1.65| 0.6-2 |0.17-0.19| 1.0-4.2 | 0.0-1.0 | .28 | .28 | | |

 | 40-46 | 20-24|1.65-1.75| 0.6-2 |0.17-0.19| 1.0-2.3 | 0.0-0.5 | .37 | .37 | | |

 | 46-76 | 20-24|1.65-1.75| 0.6-2 |0.17-0.19| 1.0-2.3 | 0.0-0.5 | .37 | .37 | | |

 | | | | | | | | | | | |

84: | | | | | | | | | | | |

 Clyde-----------------| 0-8 | 25-32|1.35-1.40| 0.6-2 |0.21-0.23| 2.6-4.8 | 6.0-9.0 | .28 | .28 | 5 | 7 | 38

 | 8-17 | 28-32|1.35-1.40| 0.6-2 |0.21-0.23| 3.5-4.8 | 2.0-6.0 | .28 | .28 | | |

 | 17-23 | 28-32|1.35-1.40| 0.6-2 |0.21-0.23| 3.5-4.8 | 1.0-4.0 | .28 | .28 | | |

 | 23-41 | 22-30|1.45-1.65| 0.6-2 |0.18-0.20| 1.6-4.2 | 0.5-2.0 | .37 | .37 | | |

 | 41-44 | 10-15|1.60-1.70| 0.6-2 |0.11-0.13| 0.0-0.0 | 0.5-1.0 | .37 | .37 | | |

 | 44-54 | 20-28|1.65-1.75| 0.6-2 |0.17-0.19| 1.0-3.5 | 0.0-0.5 | .37 | .37 | | |

 | 54-66 | 20-28|1.65-1.75| 0.6-2 |0.17-0.19| 1.0-3.5 | 0.0-0.5 | .37 | .37 | | |

 | | | | | | | | | | | |

88: | | | | | | | | | | | |

 Nevin-----------------| 0-8 | 26-29|1.30-1.35| 0.6-2 |0.21-0.23| 2.9-3.9 | 4.0-6.0 | .28 | .28 | 5 | 7 | 38

 | 8-24 | 26-29|1.30-1.35| 0.6-2 |0.21-0.23| 2.9-3.9 | 2.0-4.0 | .28 | .28 | | |

 | 24-30 | 26-29|1.30-1.35| 0.6-2 |0.21-0.23| 2.9-3.9 | 1.0-3.0 | .28 | .28 | | |

 | 30-46 | 30-35|1.30-1.40| 0.6-2 |0.18-0.20| 4.2-5.8 | 0.5-2.0 | .32 | .32 | | |

 | 46-58 | 25-36|1.25-1.35| 0.6-2 |0.18-0.20| 2.6-6.1 | 0.5-2.0 | .28 | .28 | | |

 | 58-80 | 3-10|1.30-1.35| 0.6-2 |0.05-0.10| 0.0-0.0 | 0.0-0.5 | .15 | .15 | | |

 | | | | | | | | | | | |

133: | | | | | | | | | | | |

 Colo, occasionally | | | | | | | | | | | |

 flooded--------------| 0-8 | 25-36|1.28-1.32| 0.6-2 |0.21-0.23| 2.6-6.1 | 5.0-7.0 | .28 | .28 | 5 | 7 | 38

 | 8-34 | 25-36|1.28-1.32| 0.6-2 |0.21-0.23| 2.6-6.1 | 3.0-6.0 | .28 | .28 | | |

 | 34-40 | 27-36|1.28-1.32| 0.6-2 |0.21-0.23| 3.2-6.1 | 2.0-4.0 | .28 | .28 | | |

 | 40-46 | 30-35|1.25-1.35| 0.6-2 |0.18-0.20| 4.2-5.8 | 1.0-3.0 | .28 | .28 | | |

 | 46-52 | 30-35|1.25-1.35| 0.6-2 |0.18-0.20| 4.2-5.8 | 0.5-2.0 | .28 | .28 | | |

 | 52-60 | 25-35|1.35-1.45| 0.6-2 |0.18-0.20| 2.6-5.8 | 0.0-2.0 | .32 | .32 | | |

 | | | | | | | | | | | |

135: | | | | | | | | | | | |

 Coland, occasionally | | | | | | | | | | | |

 flooded--------------| 0-8 | 27-35|1.40-1.50| 0.6-2 |0.20-0.22| 3.2-5.8 | 5.0-7.0 | .24 | .24 | 5 | 6 | 48

 | 8-32 | 27-35|1.40-1.50| 0.6-2 |0.20-0.22| 3.2-5.8 | 3.0-6.0 | .24 | .24 | | |

 | 32-40 | 25-35|1.40-1.50| 0.6-2 |0.20-0.22| 2.6-5.8 | 2.0-4.0 | .24 | .24 | | |

 | 40-44 | 12-28|1.50-1.65| 0.6-6 |0.13-0.17| 0.0-3.5 | 0.0-2.0 | .28 | .28 | | |

 | 44-52 | 12-28|1.50-1.65| 0.6-6 |0.13-0.17| 0.0-3.5 | 0.0-2.0 | .28 | .28 | | |

 | 52-66 | 12-28|1.50-1.65| 0.6-6 |0.13-0.17| 0.0-3.5 | 0.0-1.0 | .28 | .28 | | |

 | | | | | | | | | | | |
450 Soil Survey of

Table 19.--Physical Properties of the Soils--Continued

________________________________________________________________________________________________________________________

 | | | | | | | |Erosion factors|Wind |Wind

 Map symbol | Depth | Clay | Moist | Permea- |Available| Linear | Organic |_______________|erodi-|erodi-

 and soil name | | | bulk | bility | water |extensi- | matter | | | |bility|bility

 | | | density | |capacity | bility | | Kw | Kf | T |group |index ________________________________________________________________________________________________________________________

 | In | Pct | g/cc | In/hr | In/in | Pct | Pct | | | | |

 | | | | | | | | | | | |

159: | | | | | | | | | | | |

 Finchford-------------| 0-8 | 5-10|1.50-1.55| 6-20 |0.10-0.12| 0.0-0.0 | 1.0-2.0 | .17 | .17 | 5 | 2 | 134

 | 8-18 | 5-10|1.50-1.55| 6-20 |0.10-0.12| 0.0-0.0 | 0.5-1.0 | .17 | .17 | | |

 | 18-30 | 2-8 |1.50-1.60| 20-101 |0.04-0.06| 0.0-0.0 | 0.0-0.5 | .15 | .15 | | |

 | 30-55 | 2-5 |1.60-1.70| 20-101 |0.02-0.04| 0.0-0.0 | 0.0-0.5 | .15 | .15 | | |

 | 55-70 | 2-5 |1.60-1.70| 20-101 |0.02-0.04| 0.0-0.0 | 0.0-0.5 | .15 | .15 | | |

 | 70-80 | 2-5 |1.60-1.70| 20-101 |0.02-0.04| 0.0-0.0 | 0.0-0.5 | .15 | .15 | | |

 | | | | | | | | | | | |

159C: | | | | | | | | | | | |

 Finchford-------------| 0-8 | 5-10|1.50-1.55| 6-20 |0.10-0.12| 0.0-0.0 | 1.0-2.0 | .17 | .17 | 5 | 2 | 134

 | 8-15 | 5-10|1.50-1.55| 6-20 |0.10-0.12| 0.0-0.0 | 0.5-1.0 | .17 | .17 | | |

 | 15-26 | 2-8 |1.50-1.60| 20-101 |0.04-0.06| 0.0-0.0 | 0.0-0.5 | .15 | .15 | | |

 | 26-50 | 2-5 |1.60-1.70| 20-101 |0.02-0.04| 0.0-0.0 | 0.0-0.5 | .15 | .15 | | |

 | 50-65 | 2-5 |1.60-1.70| 20-101 |0.02-0.04| 0.0-0.0 | 0.0-0.5 | .15 | .15 | | |

 | 65-80 | 2-5 |1.60-1.70| 20-101 |0.02-0.04| 0.0-0.0 | 0.0-0.5 | .15 | .15 | | |

 | | | | | | | | | | | |

171B: | | | | | | | | | | | |

 Bassett---------------| 0-8 | 18-25|1.45-1.50| 0.6-2 |0.19-0.21| 0.4-2.6 | 2.5-3.5 | .28 | .28 | 5 | 6 | 48

 | 8-10 | 18-25|1.45-1.50| 0.6-2 |0.19-0.21| 0.4-2.6 | 0.5-1.0 | .28 | .28 | | |

 | 10-14 | 18-25|1.45-1.50| 0.6-2 |0.19-0.21| 0.4-2.6 | 0.5-1.0 | .28 | .28 | | |

 | 14-43 | 20-28|1.55-1.65| 0.6-2 |0.17-0.19| 1.0-3.5 | 0.0-0.5 | .28 | .28 | | |

 | 43-59 | 20-28|1.55-1.65| 0.6-2 |0.17-0.19| 1.0-3.5 | 0.0-0.5 | .28 | .28 | | |

 | 59-73 | 20-24|1.65-1.75| 0.6-2 |0.17-0.19| 1.0-2.3 | 0.0-0.5 | .37 | .37 | | |

 | | | | | | | | | | | |

175: | | | | | | | | | | | |

 Dickinson-------------| 0-9 | 12-18|1.50-1.55| 2-6 |0.12-0.15| 0.0-0.4 | 2.0-3.0 | .20 | .20 | 4 | 3 | 86

 | 9-18 | 10-18|1.45-1.55| 2-6 |0.12-0.15| 0.0-0.4 | 0.5-2.5 | .20 | .20 | | |

 | 18-30 | 10-18|1.45-1.55| 6-20 |0.12-0.15| 0.0-0.4 | 0.0-0.5 | .20 | .20 | | |

 | 30-36 | 5-10|1.55-1.65| 6-20 |0.08-0.10| 0.0-0.0 | 0.0-0.5 | .20 | .20 | | |

 | 36-60 | 5-10|1.60-1.70| 6-20 |0.02-0.04| 0.0-0.0 | 0.0-0.5 | .15 | .15 | | |

 | | | | | | | | | | | |

175B: | | | | | | | | | | | |

 Dickinson-------------| 0-9 | 12-18|1.50-1.55| 2-6 |0.12-0.15| 0.0-0.4 | 1.5-2.5 | .20 | .20 | 4 | 3 | 86

 | 9-18 | 10-18|1.45-1.55| 2-6 |0.12-0.15| 0.0-0.4 | 0.5-2.5 | .20 | .20 | | |

 | 18-30 | 10-18|1.45-1.55| 6-20 |0.12-0.15| 0.0-0.4 | 0.0-0.5 | .20 | .20 | | |

 | 30-36 | 5-10|1.55-1.65| 6-20 |0.08-0.10| 0.0-0.0 | 0.0-0.5 | .20 | .20 | | |

 | 36-60 | 5-10|1.60-1.70| 6-20 |0.02-0.04| 0.0-0.0 | 0.0-0.5 | .15 | .15 | | |

 | | | | | | | | | | | |

177: | | | | | | | | | | | |

 Saude-----------------| 0-7 | 18-24|1.40-1.45| 0.6-2 |0.20-0.22| 0.4-2.3 | 3.0-4.0 | .24 | .24 | 4 | 6 | 48

 | 7-13 | 18-24|1.40-1.45| 0.6-2 |0.20-0.22| 0.4-2.3 | 2.0-4.0 | .24 | .24 | | |

 | 13-16 | 12-18|1.40-1.50| 0.6-6 |0.15-0.19| 0.0-0.4 | 1.0-3.0 | .24 | .24 | | |

 | 16-24 | 12-18|1.40-1.50| 0.6-6 |0.15-0.19| 0.0-0.4 | 0.5-1.0 | .24 | .24 | | |

 | 24-28 | 12-18|1.40-1.50| 0.6-6 |0.15-0.19| 0.0-0.4 | 0.5-1.0 | .24 | .24 | | |

 | 28-36 | 2-8 |1.50-1.75| 20-101 |0.02-0.06| 0.0-0.0 | 0.0-0.5 | .10 | .20 | | |

 | 36-60 | 2-8 |1.50-1.75| 20-101 |0.02-0.06| 0.0-0.0 | 0.0-0.5 | .10 | .20 | | |

 | | | | | | | | | | | |

177B: | | | | | | | | | | | |

 Saude-----------------| 0-7 | 18-24|1.40-1.45| 0.6-2 |0.20-0.22| 0.4-2.3 | 3.0-4.0 | .24 | .24 | 4 | 6 | 48

 | 7-13 | 18-24|1.40-1.45| 0.6-2 |0.20-0.22| 0.4-2.3 | 2.0-4.0 | .24 | .24 | | |

 | 13-16 | 12-18|1.40-1.50| 0.6-6 |0.15-0.19| 0.0-0.4 | 1.0-3.0 | .24 | .24 | | |

 | 16-24 | 12-18|1.40-1.50| 0.6-6 |0.15-0.19| 0.0-0.4 | 0.5-1.0 | .24 | .24 | | |

 | 24-28 | 12-18|1.40-1.50| 0.6-6 |0.15-0.19| 0.0-0.4 | 0.5-1.0 | .24 | .24 | | |

 | 28-36 | 2-8 |1.50-1.75| 20-101 |0.02-0.06| 0.0-0.0 | 0.0-0.5 | .10 | .20 | | |

 | 36-60 | 2-8 |1.50-1.75| 20-101 |0.02-0.06| 0.0-0.0 | 0.0-0.5 | .10 | .20 | | |

 | | | | | | | | | | | |

178: | | | | | | | | | | | |

 Waukee----------------| 0-8 | 18-24|1.40-1.45| 0.6-2 |0.20-0.22| 0.4-2.3 | 3.0-4.0 | .24 | .24 | 4 | 6 | 48

 | 8-16 | 18-24|1.40-1.45| 0.6-2 |0.20-0.22| 0.4-2.3 | 2.0-3.0 | .24 | .24 | | |

 | 16-20 | 18-27|1.40-1.45| 0.6-2 |0.15-0.19| 0.4-3.2 | 0.5-2.0 | .28 | .28 | | |

 | 20-35 | 18-27|1.40-1.50| 0.6-2 |0.15-0.19| 0.4-3.2 | 0.5-2.0 | .28 | .28 | | |

 | 35-44 | 2-8 |1.50-1.75| 20-101 |0.02-0.06| 0.0-0.0 | 0.0-0.5 | .10 | .17 | | |

 | 44-66 | 2-8 |1.50-1.75| 20-101 |0.02-0.06| 0.0-0.0 | 0.0-0.5 | .10 | .17 | | |

 | | | | | | | | | | | |
Black Hawk County, Iowa 451

Table 19.--Physical Properties of the Soils--Continued

________________________________________________________________________________________________________________________

 | | | | | | | |Erosion factors|Wind |Wind

 Map symbol | Depth | Clay | Moist | Permea- |Available| Linear | Organic |_______________|erodi-|erodi-

 and soil name | | | bulk | bility | water |extensi- | matter | | | |bility|bility

 | | | density | |capacity | bility | | Kw | Kf | T |group |index ________________________________________________________________________________________________________________________

 | In | Pct | g/cc | In/hr | In/in | Pct | Pct | | | | |

 | | | | | | | | | | | |

178B: | | | | | | | | | | | |

 Waukee----------------| 0-8 | 18-24|1.40-1.45| 0.6-2 |0.20-0.22| 0.4-2.3 | 3.0-4.0 | .24 | .24 | 4 | 6 | 48

 | 8-16 | 18-24|1.40-1.45| 0.6-2 |0.20-0.22| 0.4-2.3 | 2.0-3.0 | .24 | .24 | | |

 | 16-20 | 18-27|1.40-1.45| 0.6-2 |0.15-0.19| 0.4-3.2 | 0.5-2.0 | .28 | .28 | | |

 | 20-35 | 18-27|1.40-1.50| 0.6-2 |0.15-0.19| 0.4-3.2 | 0.5-2.0 | .28 | .28 | | |

 | 35-44 | 2-8 |1.50-1.75| 20-101 |0.02-0.06| 0.0-0.0 | 0.0-0.5 | .10 | .17 | | |

 | 44-66 | 2-8 |1.50-1.75| 20-101 |0.02-0.06| 0.0-0.0 | 0.0-0.5 | .10 | .17 | | |

 | | | | | | | | | | | |

184: | | | | | | | | | | | |

 Klinger---------------| 0-9 | 25-30|1.30-1.35| 0.6-2 |0.22-0.24| 2.6-4.2 | 5.0-6.0 | .28 | .28 | 5 | 7 | 38

 | 9-13 | 25-30|1.30-1.35| 0.6-2 |0.22-0.24| 2.6-4.2 | 2.0-5.0 | .28 | .28 | | |

 | 13-19 | 27-30|1.30-1.35| 0.6-2 |0.22-0.24| 3.2-4.2 | 1.0-4.0 | .28 | .28 | | |

 | 19-31 | 28-35|1.35-1.45| 0.6-2 |0.18-0.20| 3.5-5.8 | 0.5-2.0 | .43 | .43 | | |

 | 31-40 | 20-28|1.65-1.75| 0.6-2 |0.17-0.19| 1.0-3.5 | 0.0-0.5 | .43 | .43 | | |

 | 40-46 | 20-28|1.65-1.75| 0.6-2 |0.17-0.19| 1.0-3.5 | 0.0-0.5 | .43 | .43 | | |

 | 46-64 | 20-28|1.65-1.75| 0.6-2 |0.17-0.19| 1.0-3.5 | 0.0-0.5 | .43 | .43 | | |

 | | | | | | | | | | | |

198B: | | | | | | | | | | | |

 Floyd-----------------| 0-8 | 20-28|1.35-1.40| 0.6-2 |0.20-0.22| 1.0-3.5 | 5.0-6.0 | .24 | .24 | 5 | 6 | 48

 | 8-24 | 20-28|1.35-1.40| 0.6-2 |0.20-0.22| 1.0-3.5 | 2.0-5.0 | .24 | .24 | | |

 | 24-33 | 18-24|1.40-1.60| 0.6-2 |0.16-0.18| 0.4-2.3 | 1.0-2.0 | .32 | .32 | | |

 | 33-41 | 6-24|1.35-1.40| 2-6 |0.11-0.13| 0.0-2.3 | 0.5-1.0 | .32 | .32 | | |

 | 41-50 | 18-30|1.40-1.65| 0.6-2 |0.16-0.18| 0.4-4.2 | 0.0-1.0 | .32 | .32 | | |

 | 50-60 | 18-30|1.65-1.80| 0.6-2 |0.16-0.18| 0.4-4.2 | 0.0-0.5 | .32 | .32 | | |

 | | | | | | | | | | | |

213B: | | | | | | | | | | | |

 Rockton, 30 to 40 | | | | | | | | | | | |

 inches to limestone--| 0-10 | 18-27|1.30-1.40| 0.6-2 |0.20-0.22| 0.4-3.2 | 3.0-4.0 | .28 | .28 | 3 | 6 | 48

 | 10-15 | 18-27|1.30-1.40| 0.6-2 |0.20-0.22| 0.4-3.2 | 2.0-4.0 | .28 | .28 | | |

 | 15-21 | 25-35|1.40-1.55| 0.6-2 |0.17-0.19| 2.6-5.8 | 0.0-1.0 | .28 | .28 | | |

 | 21-30 | 25-35|1.40-1.55| 0.6-2 |0.17-0.19| 2.6-5.8 | 0.0-1.0 | .28 | .28 | | |

 | 30-35 | 35-60|1.35-1.45| 0.6-2 |0.10-0.14| 5.8-13.7| 0.0-1.0 | .28 | .28 | | |

 | 35-80 | --- | --- | 0.0-0.6 | --- | --- | --- | --- | --- | | |

 | | | | | | | | | | | |

221: | | | | | | | | | | | |

 Klossner--------------| 0-10 | 25-30|0.30-0.40| 0.2-6 |0.35-0.45| --- | 50-100 | .28 | .28 | 2 | 2 | 134

 | 10-26 | 25-30|0.30-0.40| 0.2-6 |0.35-0.45| --- | 50-100 | .28 | .28 | | |

 | 26-36 | 15-35|0.15-0.30| 0.6-2 |0.35-0.45| 0.0-5.8 | 5.0-20 | .37 | .37 | | |

 | 36-48 | 15-35|0.15-0.30| 0.6-2 |0.35-0.45| 0.0-5.8 | 5.0-20 | .37 | .37 | | |

 | 48-65 | 7-35|1.45-1.75| 0.6-2 |0.14-0.22| 0.0-5.8 | 0.0-5.0 | .37 | .37 | | |

 | 65-80 | 7-35|1.45-1.75| 0.6-2 |0.14-0.22| 0.0-5.8 | 0.0-5.0 | .37 | .37 | | |

 | | | | | | | | | | | |

284: | | | | | | | | | | | |

 Flagler---------------| 0-8 | 12-18|1.50-1.55| 2-6 |0.12-0.14| 0.0-0.4 | 1.5-2.5 | .20 | .20 | 4 | 3 | 86

 | 8-15 | 12-18|1.50-1.55| 2-6 |0.12-0.14| 0.0-0.4 | 1.0-2.5 | .20 | .20 | | |

 | 15-22 | 12-18|1.50-1.55| 2-6 |0.12-0.14| 0.0-0.4 | 1.0-2.5 | .20 | .20 | | |

 | 22-33 | 10-15|1.55-1.60| 2-6 |0.11-0.13| 0.0-0.0 | 0.0-1.0 | .20 | .20 | | |

 | 33-65 | 2-8 |1.60-1.75| 20-101 |0.02-0.04| 0.0-0.0 | 0.0-0.5 | .20 | .20 | | |

 | | | | | | | | | | | |

284B: | | | | | | | | | | | |

 Flagler---------------| 0-8 | 12-18|1.50-1.55| 2-6 |0.12-0.14| 0.0-0.4 | 1.5-2.5 | .20 | .20 | 4 | 3 | 86

 | 8-15 | 12-18|1.50-1.55| 2-6 |0.12-0.14| 0.0-0.4 | 1.0-2.5 | .20 | .20 | | |

 | 15-22 | 12-18|1.50-1.55| 2-6 |0.12-0.14| 0.0-0.4 | 1.0-2.5 | .20 | .20 | | |

 | 22-33 | 10-15|1.55-1.60| 2-6 |0.11-0.13| 0.0-0.0 | 0.0-1.0 | .20 | .20 | | |

 | 33-65 | 2-8 |1.60-1.75| 20-101 |0.02-0.04| 0.0-0.0 | 0.0-0.5 | .20 | .20 | | |

 | | | | | | | | | | | |

290: | | | | | | | | | | | |

 Dells-----------------| 0-7 | 14-18|1.35-1.55| 0.6-2 |0.22-0.24| 0.0-0.4 | 3.0-4.0 | .32 | .32 | 4 | 5 | 56

 | 7-16 | 14-18|1.35-1.55| 0.6-2 |0.22-0.24| 0.0-0.4 | 0.0-0.5 | .32 | .32 | | |

 | 16-28 | 20-32|1.55-1.65| 0.6-2 |0.18-0.22| 1.0-4.8 | 0.0-0.5 | .37 | .37 | | |

 | 28-33 | 10-25|1.55-1.65| 0.6-2 |0.12-0.19| 0.0-2.6 | 0.0-0.5 | .37 | .37 | | |

 | 33-60 | 2-8 |1.55-1.70| 6-20 |0.05-0.10| 0.0-0.0 | 0.0-0.5 | .15 | .15 | | |

 | | | | | | | | | | | |
452 Soil Survey of

Table 19.--Physical Properties of the Soils--Continued

________________________________________________________________________________________________________________________

 | | | | | | | |Erosion factors|Wind |Wind

 Map symbol | Depth | Clay | Moist | Permea- |Available| Linear | Organic |_______________|erodi-|erodi-

 and soil name | | | bulk | bility | water |extensi- | matter | | | |bility|bility

 | | | density | |capacity | bility | | Kw | Kf | T |group |index ________________________________________________________________________________________________________________________

 | In | Pct | g/cc | In/hr | In/in | Pct | Pct | | | | |

 | | | | | | | | | | | |

354. | | | | | | | | | | | |

 Aquolls, ponded | | | | | | | | | | | |

 | | | | | | | | | | | |

377B: | | | | | | | | | | | |

 Dinsdale--------------| 0-7 | 25-29|1.25-1.30| 0.6-2 |0.21-0.23| 2.6-3.9 | 3.0-4.0 | .28 | .28 | 5 | 7 | 38

 | 7-15 | 25-29|1.25-1.30| 0.6-2 |0.21-0.23| 2.6-3.9 | 2.0-3.0 | .28 | .28 | | |

 | 15-21 | 30-34|1.30-1.35| 0.6-2 |0.18-0.20| 4.2-5.4 | 1.0-2.0 | .28 | .28 | | |

 | 21-36 | 30-34|1.30-1.35| 0.6-2 |0.18-0.20| 4.2-5.4 | 0.5-2.0 | .43 | .43 | | |

 | 36-50 | 20-28|1.65-1.75| 0.6-2 |0.17-0.19| 1.0-3.5 | 0.0-0.5 | .43 | .43 | | |

 | 50-80 | 20-28|1.65-1.75| 0.6-2 |0.17-0.19| 1.0-3.5 | 0.0-0.5 | .43 | .43 | | |

 | | | | | | | | | | | |

377C: | | | | | | | | | | | |

 Dinsdale--------------| 0-7 | 25-29|1.25-1.30| 0.6-2 |0.21-0.23| 2.6-3.9 | 3.0-4.0 | .28 | .28 | 5 | 7 | 38

 | 7-15 | 25-29|1.25-1.30| 0.6-2 |0.21-0.23| 2.6-3.9 | 2.0-3.0 | .28 | .28 | | |

 | 15-21 | 30-34|1.30-1.35| 0.6-2 |0.18-0.20| 4.2-5.4 | 1.0-2.0 | .28 | .28 | | |

 | 21-36 | 30-34|1.30-1.35| 0.6-2 |0.18-0.20| 4.2-5.4 | 0.5-2.0 | .43 | .43 | | |

 | 36-50 | 20-28|1.65-1.75| 0.6-2 |0.17-0.19| 1.0-3.5 | 0.0-0.5 | .43 | .43 | | |

 | 50-80 | 20-28|1.65-1.75| 0.6-2 |0.17-0.19| 1.0-3.5 | 0.0-0.5 | .43 | .43 | | |

 | | | | | | | | | | | |

377C2: | | | | | | | | | | | |

 Dinsdale, moderately | | | | | | | | | | | |

 eroded---------------| 0-8 | 25-29|1.25-1.30| 0.6-2 |0.21-0.23| 2.6-3.9 | 2.2-3.2 | .32 | .32 | 5 | 7 | 38

 | 8-25 | 30-34|1.30-1.35| 0.6-2 |0.18-0.20| 4.2-5.4 | 0.5-2.0 | .43 | .43 | | |

 | 25-40 | 20-28|1.65-1.75| 0.6-2 |0.17-0.19| 1.0-3.5 | 0.0-0.5 | .43 | .43 | | |

 | 40-80 | 20-28|1.65-1.75| 0.6-2 |0.17-0.19| 1.0-3.5 | 0.0-0.5 | .43 | .43 | | |

 | | | | | | | | | | | |

382: | | | | | | | | | | | |

 Maxfield--------------| 0-7 | 27-35|1.35-1.40| 0.6-2 |0.21-0.23| 3.2-5.8 | 6.0-8.0 | .28 | .28 | 5 | 7 | 38

 | 7-17 | 27-35|1.35-1.40| 0.6-2 |0.21-0.23| 3.2-5.8 | 3.0-6.0 | .28 | .28 | | |

 | 17-23 | 25-34|1.40-1.50| 0.6-2 |0.18-0.20| 2.6-5.4 | 0.5-2.0 | .32 | .32 | | |

 | 23-32 | 25-34|1.40-1.50| 0.6-2 |0.18-0.20| 2.6-5.4 | 0.5-2.0 | .32 | .32 | | |

 | 32-45 | 20-26|1.65-1.75| 0.6-2 |0.17-0.19| 1.0-2.9 | 0.0-0.5 | .32 | .32 | | |

 | 45-66 | 20-26|1.65-1.75| 0.6-2 |0.17-0.19| 1.0-2.9 | 0.0-0.5 | .32 | .32 | | |

 | | | | | | | | | | | |

391B: | | | | | | | | | | | |

 Clyde-----------------| 0-8 | 25-32|1.35-1.40| 0.6-2 |0.21-0.23| 2.6-4.8 | 6.0-9.0 | .28 | .28 | 5 | 7 | 48

 | 8-17 | 28-32|1.35-1.40| 0.6-2 |0.21-0.23| 3.5-4.8 | 2.0-6.0 | .28 | .28 | | |

 | 17-23 | 28-32|1.35-1.40| 0.6-2 |0.21-0.23| 3.5-4.8 | 1.0-4.0 | .28 | .28 | | |

 | 23-41 | 22-30|1.45-1.65| 0.6-2 |0.18-0.20| 1.6-4.2 | 0.5-2.0 | .37 | .37 | | |

 | 41-44 | 10-15|1.60-1.70| 0.6-2 |0.11-0.13| 0.0-0.0 | 0.5-1.0 | .37 | .37 | | |

 | 44-54 | 20-28|1.65-1.75| 0.6-2 |0.17-0.19| 1.0-3.5 | 0.0-0.5 | .37 | .37 | | |

 | 54-66 | 20-28|1.65-1.75| 0.6-2 |0.17-0.19| 1.0-3.5 | 0.0-0.5 | .37 | .37 | | |

 | | | | | | | | | | | |

 Floyd-----------------| 0-8 | 20-28|1.35-1.40| 0.6-2 |0.20-0.22| 1.0-3.5 | 5.0-6.0 | .24 | .24 | 5 | 7 | 48

 | 8-24 | 20-28|1.35-1.40| 0.6-2 |0.20-0.22| 1.0-3.5 | 2.0-5.0 | .24 | .24 | | |

 | 24-33 | 18-24|1.40-1.60| 0.6-2 |0.16-0.18| 0.4-2.3 | 1.0-2.0 | .32 | .32 | | |

 | 33-41 | 6-24|1.35-1.40| 2-6 |0.11-0.13| 0.0-2.3 | 0.5-1.0 | .32 | .32 | | |

 | 41-50 | 18-30|1.40-1.65| 0.6-2 |0.16-0.18| 0.4-4.2 | 0.0-1.0 | .32 | .32 | | |

 | 50-60 | 18-30|1.65-1.80| 0.6-2 |0.16-0.18| 0.4-4.2 | 0.0-0.5 | .32 | .32 | | |

 | | | | | | | | | | | |

395B: | | | | | | | | | | | |

 Marquis---------------| 0-8 | 18-26|1.40-1.45| 0.6-2 |0.20-0.22| 0.4-2.9 | 3.0-4.0 | .24 | .24 | 5 | 6 | 48

 | 8-19 | 18-26|1.40-1.45| 0.6-2 |0.20-0.22| 0.4-2.9 | 3.0-4.0 | .24 | .24 | | |

 | 19-24 | 20-30|1.45-1.65| 0.6-2 |0.17-0.19| 1.0-4.2 | 1.0-2.0 | .28 | .28 | | |

 | 24-54 | 20-24|1.65-1.75| 0.6-2 |0.17-0.19| 1.0-2.3 | 0.0-1.0 | .37 | .37 | | |

 | 54-80 | 20-24|1.65-1.75| 0.6-2 |0.17-0.19| 1.0-2.3 | 0.0-0.5 | .37 | .37 | | |

 | | | | | | | | | | | |

398: | | | | | | | | | | | |

 Tripoli---------------| 0-9 | 28-32|1.40-1.45| 0.6-2 |0.19-0.21| 3.5-4.8 | 6.0-7.0 | .24 | .24 | 5 | 6 | 48

 | 9-18 | 28-32|1.40-1.45| 0.6-2 |0.19-0.21| 3.5-4.8 | 4.0-6.0 | .24 | .24 | | |

 | 18-24 | 22-28|1.45-1.70| 0.6-2 |0.17-0.19| 1.6-3.5 | 0.5-2.0 | .24 | .24 | | |

 | 24-38 | 22-28|1.45-1.70| 0.6-2 |0.17-0.19| 1.6-3.5 | 0.0-1.0 | .28 | .28 | | |

 | 38-66 | 20-28|1.65-1.75| 0.6-2 |0.17-0.19| 1.0-3.5 | 0.0-0.5 | .28 | .28 | | |

 | | | | | | | | | | | |
Black Hawk County, Iowa 453

Table 19.--Physical Properties of the Soils--Continued

________________________________________________________________________________________________________________________

 | | | | | | | |Erosion factors|Wind |Wind

 Map symbol | Depth | Clay | Moist | Permea- |Available| Linear | Organic |_______________|erodi-|erodi-

 and soil name | | | bulk | bility | water |extensi- | matter | | | |bility|bility

 | | | density | |capacity | bility | | Kw | Kf | T |group |index ________________________________________________________________________________________________________________________

 | In | Pct | g/cc | In/hr | In/in | Pct | Pct | | | | |

 | | | | | | | | | | | |

399: | | | | | | | | | | | |

 Readlyn---------------| 0-7 | 18-28|1.35-1.40| 0.6-2 |0.20-0.22| 0.4-3.5 | 4.5-5.5 | .24 | .24 | 5 | 6 | 48

 | 7-17 | 18-28|1.35-1.40| 0.6-2 |0.20-0.22| 0.4-3.5 | 3.0-4.5 | .24 | .24 | | |

 | 17-43 | 22-28|1.45-1.70| 0.6-2 |0.17-0.19| 1.6-3.5 | 1.0-3.0 | .32 | .32 | | |

 | 43-52 | 18-24|1.70-1.80| 0.6-2 |0.17-0.19| 0.4-2.3 | 0.0-0.5 | .32 | .32 | | |

 | 52-60 | 18-24|1.70-1.80| 0.6-2 |0.17-0.19| 0.4-2.3 | 0.0-0.5 | .32 | .32 | | |

 | | | | | | | | | | | |

408B: | | | | | | | | | | | |

 Olin------------------| 0-7 | 12-18|1.45-1.50| 2-6 |0.13-0.15| 0.0-0.4 | 1.5-2.5 | .20 | .20 | 5 | 3 | 86

 | 7-23 | 12-18|1.45-1.50| 2-6 |0.13-0.15| 0.0-0.4 | 1.0-2.0 | .20 | .20 | | |

 | 23-31 | 12-18|1.45-1.50| 2-6 |0.13-0.15| 0.0-0.4 | 0.0-1.0 | .20 | .20 | | |

 | 31-52 | 20-28|1.50-1.70| 0.6-2 |0.17-0.19| 1.0-3.5 | 0.0-0.5 | .37 | .37 | | |

 | 52-80 | 20-28|1.65-1.75| 0.6-2 |0.17-0.19| 1.0-3.5 | 0.0-0.5 | .37 | .37 | | |

 | | | | | | | | | | | |

408C: | | | | | | | | | | | |

 Olin------------------| 0-7 | 12-18|1.45-1.50| 2-6 |0.13-0.15| 0.0-0.4 | 1.5-2.5 | .20 | .20 | 5 | 3 | 86

 | 7-23 | 12-18|1.45-1.50| 2-6 |0.13-0.15| 0.0-0.4 | 1.0-2.0 | .20 | .20 | | |

 | 23-31 | 12-18|1.45-1.50| 2-6 |0.13-0.15| 0.0-0.4 | 0.0-1.0 | .20 | .20 | | |

 | 31-52 | 20-28|1.50-1.70| 0.6-2 |0.17-0.19| 1.0-3.5 | 0.0-0.5 | .37 | .37 | | |

 | 52-80 | 20-28|1.65-1.75| 0.6-2 |0.17-0.19| 1.0-3.5 | 0.0-0.5 | .37 | .37 | | |

 | | | | | | | | | | | |

412C: | | | | | | | | | | | |

 Emeline---------------| 0-9 | 12-27|1.15-1.20| 0.6-2 |0.17-0.22| 0.0-3.2 | 2.5-3.5 | .28 | .28 | 1 | 6 | 48

 | 9-80 | --- | --- | 0.0-0.6 | --- | --- | --- | --- | --- | | |

 | | | | | | | | | | | |

426B: | | | | | | | | | | | |

 Aredale---------------| 0-7 | 18-26|1.40-1.45| 0.6-2 |0.20-0.22| 0.4-2.9 | 3.0-4.0 | .24 | .24 | 5 | 6 | 48

 | 7-19 | 18-26|1.40-1.45| 0.6-2 |0.20-0.22| 0.4-2.9 | 2.0-3.0 | .24 | .24 | | |

 | 19-33 | 18-28|1.45-1.65| 0.6-2 |0.17-0.19| 0.4-3.5 | 0.5-1.0 | .32 | .32 | | |

 | 33-55 | 8-15|1.60-1.70| 2-6 |0.11-0.13| 0.0-0.0 | 0.0-0.5 | .20 | .20 | | |

 | 55-70 | 18-24|1.70-1.80| 0.2-0.6 |0.17-0.19| 0.4-2.3 | 0.0-0.5 | .37 | .37 | | |

 | | | | | | | | | | | |

426C: | | | | | | | | | | | |

 Aredale---------------| 0-7 | 18-26|1.40-1.45| 0.6-2 |0.20-0.22| 0.4-2.9 | 3.0-4.0 | .24 | .24 | 5 | 6 | 48

 | 7-19 | 18-26|1.40-1.45| 0.6-2 |0.20-0.22| 0.4-2.9 | 2.0-3.0 | .24 | .24 | | |

 | 19-33 | 18-28|1.45-1.65| 0.6-2 |0.17-0.19| 0.4-3.5 | 0.5-1.0 | .32 | .32 | | |

 | 33-55 | 8-15|1.60-1.70| 2-6 |0.11-0.13| 0.0-0.0 | 0.0-0.5 | .20 | .20 | | |

 | 55-70 | 18-24|1.70-1.80| 0.2-0.6 |0.17-0.19| 0.4-2.3 | 0.0-0.5 | .37 | .37 | | |

 | | | | | | | | | | | |

426C2: | | | | | | | | | | | |

 Aredale, moderately | | | | | | | | | | | |

 eroded---------------| 0-8 | 18-26|1.40-1.45| 0.6-2 |0.20-0.22| 0.4-2.9 | 2.2-3.2 | .24 | .24 | 5 | 6 | 48

 | 8-32 | 18-28|1.45-1.65| 0.6-2 |0.17-0.19| 0.4-3.5 | 0.5-1.0 | .32 | .32 | | |

 | 32-50 | 8-15|1.60-1.70| 2-6 |0.11-0.13| 0.0-0.0 | 0.0-0.5 | .20 | .20 | | |

 | 50-70 | 18-24|1.70-1.80| 0.2-0.6 |0.17-0.19| 0.4-2.3 | 0.0-0.5 | .37 | .37 | | |

 | | | | | | | | | | | |

468B: | | | | | | | | | | | |

 Dunkerton-------------| 0-9 | 5-18|1.45-1.50| 2-6 |0.13-0.15| 0.0-0.4 | 0.5-1.5 | .20 | .20 | 5 | 3 | 86

 | 9-15 | 5-18|1.45-1.50| 2-6 |0.13-0.15| 0.0-0.4 | 0.5-1.0 | .20 | .20 | | |

 | 15-25 | 10-22|1.45-1.50| 2-6 |0.13-0.15| 0.0-1.6 | 0.0-0.5 | .20 | .20 | | |

 | 25-49 | 20-30|1.65-1.75| 0.2-0.6 |0.17-0.19| 1.0-4.2 | 0.0-0.5 | .37 | .37 | | |

 | 49-80 | 20-30|1.65-1.75| 0.2-0.6 |0.17-0.19| 1.0-4.2 | 0.0-0.5 | .37 | .37 | | |

 | | | | | | | | | | | |

468C: | | | | | | | | | | | |

 Dunkerton-------------| 0-9 | 5-18|1.45-1.50| 2-6 |0.13-0.15| 0.0-0.4 | 0.5-1.5 | .20 | .20 | 5 | 3 | 86

 | 9-15 | 5-18|1.45-1.50| 2-6 |0.13-0.15| 0.0-0.4 | 0.5-1.0 | .20 | .20 | | |

 | 15-25 | 10-30|1.45-1.50| 2-6 |0.13-0.15| 0.0-4.2 | 0.0-0.5 | .20 | .20 | | |

 | 25-49 | 20-30|1.65-1.75| 0.2-0.6 |0.17-0.19| 1.0-4.2 | 0.0-0.5 | .37 | .37 | | |

 | 49-80 | 20-30|1.65-1.75| 0.2-0.6 |0.17-0.19| 1.0-4.2 | 0.0-0.5 | .37 | .37 | | |

 | | | | | | | | | | | |
454 Soil Survey of

Table 19.--Physical Properties of the Soils--Continued

________________________________________________________________________________________________________________________

 | | | | | | | |Erosion factors|Wind |Wind

 Map symbol | Depth | Clay | Moist | Permea- |Available| Linear | Organic |_______________|erodi-|erodi-

 and soil name | | | bulk | bility | water |extensi- | matter | | | |bility|bility

 | | | density | |capacity | bility | | Kw | Kf | T |group |index ________________________________________________________________________________________________________________________

 | In | Pct | g/cc | In/hr | In/in | Pct | Pct | | | | |

 | | | | | | | | | | | |

471: | | | | | | | | | | | |

 Oran------------------| 0-8 | 16-24|1.40-1.45| 0.6-2 |0.18-0.20| 0.0-2.3 | 3.0-4.0 | .24 | .24 | 5 | 6 | 48

 | 8-14 | 16-24|1.40-1.45| 0.6-2 |0.18-0.20| 0.0-2.3 | 0.5-1.0 | .32 | .32 | | |

 | 14-19 | 16-24|1.40-1.45| 0.6-2 |0.18-0.20| 0.0-2.3 | 0.5-1.0 | .32 | .32 | | |

 | 19-42 | 22-28|1.45-1.70| 0.6-2 |0.17-0.19| 1.6-3.5 | 0.0-0.5 | .37 | .37 | | |

 | 42-80 | 20-26|1.45-1.70| 0.6-2 |0.17-0.19| 1.0-2.9 | 0.0-0.5 | .37 | .37 | | |

 | | | | | | | | | | | |

485: | | | | | | | | | | | |

 Spillville, | | | | | | | | | | | |

 occasionally flooded | 0-8 | 18-26|1.45-1.55| 0.6-2 |0.19-0.21| 0.4-2.9 | 4.0-5.0 | .24 | .24 | 5 | 6 | 48

 | 8-54 | 18-26|1.45-1.55| 0.6-2 |0.19-0.21| 0.4-2.9 | 1.0-4.0 | .24 | .24 | | |

 | 54-60 | 14-24|1.55-1.70| 0.6-6 |0.15-0.18| 0.0-2.3 | 1.0-2.0 | .28 | .28 | | |

 | | | | | | | | | | | |

585: | | | | | | | | | | | |

 Spillville, | | | | | | | | | | | |

 occasionally flooded | 0-8 | 18-26|1.45-1.55| 0.6-2 |0.19-0.21| 0.4-2.9 | 4.0-5.0 | .24 | .24 | 5 | 6 | 48

 | 8-54 | 18-26|1.45-1.55| 0.6-2 |0.19-0.21| 0.4-2.9 | 1.0-4.0 | .24 | .24 | | |

 | 54-60 | 14-24|1.55-1.70| 0.6-6 |0.15-0.18| 0.0-2.3 | 1.0-2.0 | .28 | .28 | | |

 | | | | | | | | | | | |

 Coland, occasionally | | | | | | | | | | | |

 flooded--------------| 0-8 | 27-35|1.40-1.50| 0.6-2 |0.20-0.22| 3.2-5.8 | 5.0-7.0 | .24 | .24 | 5 | 6 | 48

 | 8-32 | 27-35|1.40-1.50| 0.6-2 |0.20-0.22| 3.2-5.8 | 3.0-6.0 | .24 | .24 | | |

 | 32-40 | 25-35|1.40-1.50| 0.6-2 |0.20-0.22| 2.6-5.8 | 1.0-4.0 | .24 | .24 | | |

 | 40-44 | 12-28|1.50-1.65| 0.6-6 |0.13-0.17| 0.0-3.5 | 0.0-2.0 | .28 | .28 | | |

 | 44-52 | 12-28|1.50-1.65| 0.6-6 |0.13-0.17| 0.0-3.5 | 0.0-2.0 | .28 | .28 | | |

 | 52-60 | 12-28|1.50-1.65| 0.6-6 |0.13-0.17| 0.0-3.5 | 0.0-1.0 | .28 | .28 | | |

 | | | | | | | | | | | |

626: | | | | | | | | | | | |

 Hayfield, 24 to 40 | | | | | | | | | | | |

 inches to sand and | | | | | | | | | | | |

 gravel---------------| 0-8 | 18-27|1.30-1.50| 0.6-2 |0.20-0.24| 0.4-3.2 | 3.0-4.0 | .32 | .32 | 4 | 6 | 48

 | 8-13 | 18-27|1.30-1.50| 0.6-2 |0.20-0.24| 0.4-3.2 | 0.5-1.0 | .32 | .32 | | |

 | 13-29 | 18-30|1.40-1.55| 0.6-2 |0.17-0.22| 0.4-4.2 | 0.0-1.0 | .32 | .32 | | |

 | 29-80 | 0-5 |1.55-1.65| 6-20 |0.02-0.04| 0.0-0.0 | 0.0-0.5 | .15 | .15 | | |

 | | | | | | | | | | | |

761: | | | | | | | | | | | |

 Franklin--------------| 0-6 | 18-25|1.30-1.35| 0.6-2 |0.21-0.23| 0.4-2.6 | 3.0-4.0 | .28 | .28 | 5 | 6 | 48

 | 6-13 | 18-25|1.30-1.35| 0.6-2 |0.21-0.23| 0.4-2.6 | 0.5-1.0 | .28 | .28 | | |

 | 13-18 | 30-34|1.35-1.40| 0.6-2 |0.18-0.20| 4.2-5.4 | 0.5-1.0 | .37 | .37 | | |

 | 18-28 | 30-34|1.35-1.40| 0.6-2 |0.18-0.20| 4.2-5.4 | 0.0-0.5 | .37 | .37 | | |

 | 28-37 | 20-28|1.65-1.75| 0.6-2 |0.17-0.19| 1.0-3.5 | 0.0-0.5 | .37 | .37 | | |

 | 37-46 | 20-28|1.65-1.75| 0.6-2 |0.17-0.19| 1.0-3.5 | 0.0-0.5 | .37 | .37 | | |

 | 46-64 | 20-28|1.65-1.75| 0.6-2 |0.17-0.19| 1.0-3.5 | 0.0-0.5 | .37 | .37 | | |

 | 64-74 | 20-28|1.65-1.75| 0.6-2 |0.17-0.19| 1.0-3.5 | 0.0-0.5 | .37 | .37 | | |

 | | | | | | | | | | | |

771B: | | | | | | | | | | | |

 Waubeek---------------| 0-7 | 18-26|1.25-1.30| 0.6-2 |0.21-0.23| 0.4-2.9 | 2.5-3.5 | .28 | .28 | 5 | 6 | 48

 | 7-13 | 18-26|1.25-1.30| 0.6-2 |0.21-0.23| 0.4-2.9 | 0.5-1.0 | .28 | .28 | | |

 | 13-29 | 25-34|1.25-1.35| 0.6-2 |0.18-0.20| 2.6-3.9 | 0.5-1.0 | .37 | .37 | | |

 | 29-34 | 20-28|1.65-1.75| 0.6-2 |0.17-0.19| 1.0-2.3 | 0.0-0.5 | .37 | .37 | | |

 | 34-45 | 20-28|1.65-1.75| 0.6-2 |0.17-0.19| 1.0-2.3 | 0.0-0.5 | .37 | .37 | | |

 | 45-67 | 20-28|1.65-1.75| 0.6-2 |0.17-0.19| 1.0-2.3 | 0.0-0.5 | .37 | .37 | | |

 | | | | | | | | | | | |

775B: | | | | | | | | | | | |

 Billett---------------| 0-8 | 5-15|1.40-1.70| 2-6 |0.13-0.18| 0.0-0.0 | 1.0-2.0 | .20 | .20 | 4 | 3 | 86

 | 8-13 | 10-18|1.40-1.70| 2-6 |0.10-0.15| 0.0-0.4 | 0.5-1.0 | .20 | .20 | | |

 | 13-28 | 10-18|1.40-1.70| 2-6 |0.10-0.15| 0.0-0.4 | 0.0-0.5 | .15 | .15 | | |

 | 28-41 | 8-18|1.50-1.80| 2-6 |0.05-0.12| 0.0-0.4 | 0.0-0.5 | .15 | .15 | | |

 | 41-47 | 8-18|1.50-1.80| 2-6 |0.05-0.12| 0.0-0.4 | 0.0-0.5 | .15 | .15 | | |

 | 47-52 | 2-7 |1.60-1.90| 6-20 |0.02-0.10| 0.0-0.0 | 0.0-0.5 | .10 | .10 | | |

 | 52-60 | 2-7 |1.60-1.90| 6-20 |0.02-0.10| 0.0-0.0 | 0.0-0.5 | .10 | .10 | | |

 | | | | | | | | | | | |
Black Hawk County, Iowa 455

Table 19.--Physical Properties of the Soils--Continued

________________________________________________________________________________________________________________________

 | | | | | | | |Erosion factors|Wind |Wind

 Map symbol | Depth | Clay | Moist | Permea- |Available| Linear | Organic |_______________|erodi-|erodi-

 and soil name | | | bulk | bility | water |extensi- | matter | | | |bility|bility

 | | | density | |capacity | bility | | Kw | Kf | T |group |index ________________________________________________________________________________________________________________________

 | In | Pct | g/cc | In/hr | In/in | Pct | Pct | | | | |

 | | | | | | | | | | | |

776C: | | | | | | | | | | | |

 Lilah-----------------| 0-6 | 5-13|1.50-1.55| 2-6 |0.11-0.13| 0.0-0.0 | 1.0-2.0 | .20 | .20 | 3 | 3 | 86

 | 6-15 | 10-15|1.55-1.65| 2-6 |0.10-0.12| 0.0-0.0 | 0.0-0.5 | .20 | .20 | | |

 | 15-28 | 2-10|1.55-1.80| 20-101 |0.02-0.04| 0.0-0.0 | 0.0-0.5 | .10 | .10 | | |

 | 28-39 | 2-10|1.55-1.80| 20-101 |0.02-0.04| 0.0-0.0 | 0.0-0.5 | .10 | .10 | | |

 | 39-60 | 2-6 |1.55-1.80| 20-101 |0.02-0.04| 0.0-0.0 | 0.0-0.5 | .10 | .10 | | |

 | | | | | | | | | | | |

777: | | | | | | | | | | | |

 Wapsie----------------| 0-8 | 12-20|1.40-1.45| 0.6-2 |0.18-0.20| 0.0-1.0 | 3.0-4.0 | .24 | .24 | 4 | 6 | 56

 | 8-13 | 12-20|1.40-1.45| 0.6-2 |0.18-0.20| 0.0-1.0 | 0.5-1.0 | .24 | .24 | | |

 | 13-17 | 15-22|1.45-1.50| 0.6-2 |0.15-0.17| 0.0-1.6 | 0.0-0.5 | .28 | .28 | | |

 | 17-27 | 15-22|1.45-1.50| 0.6-2 |0.15-0.17| 0.0-1.6 | 0.0-0.5 | .28 | .28 | | |

 | 27-29 | 15-22|1.45-1.50| 0.6-2 |0.15-0.17| 0.0-1.6 | 0.0-0.5 | .28 | .28 | | |

 | 29-38 | 2-10|1.50-1.75| 20-101 |0.02-0.06| 0.0-0.0 | 0.0-0.5 | .10 | .10 | | |

 | 38-60 | 2-10|1.50-1.75| 20-101 |0.02-0.06| 0.0-0.0 | 0.0-0.5 | .10 | .10 | | |

 | | | | | | | | | | | |

781B: | | | | | | | | | | | |

 Lourdes---------------| 0-8 | 18-27|1.45-1.60| 0.6-2 |0.18-0.20| 0.4-3.2 | 3.0-4.0 | .28 | .28 | 5 | 6 | 48

 | 8-11 | 24-33|1.45-1.60| 0.6-2 |0.16-0.18| 2.6-5.1 | 0.5-1.0 | .32 | .32 | | |

 | 11-15 | 24-33|1.45-1.60| 0.6-2 |0.16-0.18| 2.6-5.1 | 0.5-1.0 | .32 | .32 | | |

 | 15-44 | 28-33|1.45-1.60| 0.2-0.6 |0.15-0.17| 3.5-5.1 | 0.0-0.5 | .37 | .37 | | |

 | 44-51 | 28-33|1.60-1.70| 0.2-0.6 |0.15-0.17| 3.5-5.1 | 0.0-0.5 | .37 | .37 | | |

 | 51-76 | 28-33|1.60-1.70| 0.2-0.6 |0.15-0.17| 3.5-5.1 | 0.0-0.5 | .37 | .37 | | |

 | | | | | | | | | | | |

781C2: | | | | | | | | | | | |

 Lourdes, moderately | | | | | | | | | | | |

 eroded---------------| 0-8 | 18-27|1.45-1.60| 0.6-2 |0.18-0.20| 0.4-3.2 | 2.2-3.2 | .28 | .28 | 5 | 6 | 48

 | 8-14 | 30-35|1.45-1.60| 0.2-0.6 |0.15-0.17| 4.2-5.8 | 0.0-0.5 | .37 | .37 | | |

 | 14-42 | 28-33|1.60-1.70| 0.2-0.6 |0.15-0.17| 3.5-5.1 | 0.0-0.5 | .37 | .37 | | |

 | 42-47 | 28-33|1.60-1.70| 0.2-0.6 |0.15-0.17| 3.5-5.1 | 0.0-0.5 | .37 | .37 | | |

 | 47-76 | 28-33|1.60-1.70| 0.2-0.6 |0.15-0.17| 3.5-5.1 | 0.0-0.5 | .37 | .37 | | |

 | | | | | | | | | | | |

782B: | | | | | | | | | | | |

 Donnan----------------| 0-8 | 20-26|1.45-1.50| 0.6-2 |0.20-0.22| 1.0-2.9 | 2.5-3.5 | .28 | .28 | 4 | 6 | 48

 | 8-13 | 20-26|1.45-1.50| 0.6-2 |0.20-0.22| 1.0-2.9 | 0.5-1.0 | .28 | .28 | | |

 | 13-18 | 20-26|1.45-1.50| 0.6-2 |0.20-0.22| 1.0-2.9 | 0.5-1.0 | .28 | .28 | | |

 | 18-24 | 20-30|1.45-1.55| 0.6-2 |0.17-0.19| 1.0-4.2 | 0.0-0.5 | .28 | .28 | | |

 | 24-48 | 42-55|1.65-1.80|0.0015-0.06|0.11-0.14| 8.0-12.1| 0.0-0.5 | .28 | .28 | | |

 | 48-60 | 24-32|1.60-1.70| 0.2-0.6 |0.17-0.19| 2.3-4.8 | 0.0-0.5 | .28 | .28 | | |

 | | | | | | | | | | | |

798: | | | | | | | | | | | |

 Protivin--------------| 0-8 | 20-27|1.45-1.50| 0.6-2 |0.18-0.20| 1.0-3.2 | 6.0-7.0 | .28 | .28 | 5 | 6 | 48

 | 8-15 | 20-27|1.45-1.50| 0.6-2 |0.18-0.20| 1.0-3.2 | 4.0-7.0 | .28 | .28 | | |

 | 15-19 | 20-27|1.50-1.60| 0.2-0.6 |0.17-0.19| 1.0-3.2 | 2.0-6.0 | .37 | .37 | | |

 | 19-23 | 20-27|1.50-1.60| 0.2-0.6 |0.17-0.19| 1.0-3.2 | 1.0-2.0 | .37 | .37 | | |

 | 23-45 | 28-33|1.60-1.70| 0.2-0.6 |0.15-0.17| 3.5-5.1 | 0.0-0.5 | .37 | .37 | | |

 | 45-60 | 28-33|1.60-1.70| 0.2-0.6 |0.15-0.17| 3.5-5.1 | 0.0-0.5 | .37 | .37 | | |

 | | | | | | | | | | | |

809B: | | | | | | | | | | | |

 Bertram---------------| 0-8 | 8-15|1.50-1.55| 2-6 |0.12-0.14| 0.0-0.0 | 1.5-2.5 | .20 | .20 | 3 | 3 | 86

 | 8-17 | 8-15|1.50-1.55| 2-6 |0.12-0.14| 0.0-0.0 | 1.0-2.5 | .20 | .20 | | |

 | 17-30 | 12-18|1.55-1.60| 2-6 |0.11-0.13| 0.0-0.4 | 0.5-1.0 | .20 | .20 | | |

 | 30-34 | 20-32|1.60-1.80| 0.2-0.6 |0.14-0.16| 1.0-4.8 | 0.0-0.5 | .32 | .32 | | |

 | 34-36 | 8-12|1.60-1.80| 0.2-0.6 |0.14-0.16| 0.0-0.0 | 0.0-0.5 | .32 | .32 | | |

 | 36-80 | --- | --- | 0.0-0.6 | --- | --- | --- | --- | --- | | |

 | | | | | | | | | | | |

877B: | | | | | | | | | | | |

 Dinsmore--------------| 0-8 | 25-29|1.25-1.30| 0.6-2 |0.21-0.23| 2.6-3.9 | 3.0-4.0 | .28 | .28 | 5 | 7 | 38

 | 8-16 | 25-29|1.25-1.30| 0.6-2 |0.21-0.23| 2.6-3.9 | 2.0-3.0 | .28 | .28 | | |

 | 16-48 | 25-35|1.30-1.35| 0.6-2 |0.18-0.20| 2.6-5.8 | 0.5-2.0 | .37 | .37 | | |

 | 48-80 | 20-28|1.65-1.75| 0.6-2 |0.17-0.19| 1.0-3.5 | 0.0-0.5 | .43 | .43 | | |

 | | | | | | | | | | | |
456 Soil Survey of

Table 19.--Physical Properties of the Soils--Continued

________________________________________________________________________________________________________________________

 | | | | | | | |Erosion factors|Wind |Wind

 Map symbol | Depth | Clay | Moist | Permea- |Available| Linear | Organic |_______________|erodi-|erodi-

 and soil name | | | bulk | bility | water |extensi- | matter | | | |bility|bility

 | | | density | |capacity | bility | | Kw | Kf | T |group |index ________________________________________________________________________________________________________________________

 | In | Pct | g/cc | In/hr | In/in | Pct | Pct | | | | |

 | | | | | | | | | | | |

884: | | | | | | | | | | | |

 Klingmore-------------| 0-8 | 26-30|1.30-1.35| 0.6-2 |0.22-0.24| 2.9-4.2 | 5.0-6.0 | .28 | .28 | 5 | 6 | 38

 | 8-19 | 26-30|1.30-1.35| 0.6-2 |0.22-0.24| 2.9-4.2 | 4.0-5.0 | .28 | .28 | | |

 | 19-56 | 26-35|1.35-1.45| 0.6-2 |0.18-0.20| 2.9-5.8 | 0.5-1.0 | .37 | .37 | | |

 | 56-80 | 20-28|1.65-1.75| 0.6-2 |0.17-0.19| 1.0-3.5 | 0.0-0.5 | .43 | .43 | | |

 | | | | | | | | | | | |

911B: | | | | | | | | | | | |

 Colo------------------| 0-8 | 25-36|1.28-1.32| 0.6-2 |0.21-0.23| 2.6-6.1 | 5.0-7.0 | .28 | .28 | 5 | 7 | 38

 | 8-34 | 25-36|1.28-1.32| 0.6-2 |0.21-0.23| 2.6-6.1 | 3.0-6.0 | .28 | .28 | | |

 | 34-40 | 27-36|1.28-1.32| 0.6-2 |0.21-0.23| 3.2-6.1 | 2.0-4.0 | .28 | .28 | | |

 | 40-46 | 30-35|1.25-1.35| 0.6-2 |0.18-0.20| 4.2-5.8 | 1.0-3.0 | .28 | .28 | | |

 | 46-52 | 30-35|1.25-1.35| 0.6-2 |0.18-0.20| 4.2-5.8 | 0.5-2.5 | .28 | .28 | | |

 | 52-60 | 25-35|1.35-1.45| 0.6-2 |0.18-0.20| 2.6-5.8 | 0.0-2.0 | .32 | .32 | | |

 | | | | | | | | | | | |

 Ely-------------------| 0-8 | 25-30|1.30-1.35| 0.6-2 |0.21-0.23| 2.6-4.2 | 4.0-6.0 | .28 | .28 | 5 | 7 | 38

 | 8-24 | 25-30|1.30-1.35| 0.6-2 |0.21-0.23| 2.6-4.2 | 3.0-6.0 | .28 | .28 | | |

 | 24-32 | 25-30|1.30-1.35| 0.6-2 |0.21-0.23| 2.6-4.2 | 2.0-4.0 | .28 | .28 | | |

 | 32-47 | 28-35|1.30-1.40| 0.6-2 |0.18-0.20| 3.5-5.8 | 1.0-3.0 | .43 | .43 | | |

 | 47-58 | 20-30|1.40-1.45| 0.6-2 |0.18-0.20| 1.0-4.2 | 0.5-2.0 | .43 | .43 | | |

 | 58-80 | 20-30|1.40-1.45| 0.6-2 |0.18-0.20| 1.0-4.2 | 0.0-0.5 | .43 | .43 | | |

 | | | | | | | | | | | |

933: | | | | | | | | | | | |

 Sawmill, occasionally | | | | | | | | | | | |

 flooded--------------| 0-10 | 27-35|1.20-1.40| 0.6-2 |0.21-0.23| 3.2-5.8 | 5.0-7.0 | .28 | .28 | 5 | 7 | 38

 | 10-25 | 27-35|1.20-1.40| 0.6-2 |0.21-0.23| 3.2-5.8 | 3.0-6.0 | .28 | .28 | | |

 | 25-32 | 27-35|1.20-1.40| 0.6-2 |0.21-0.23| 3.2-5.8 | 2.0-4.0 | .28 | .28 | | |

 | 32-40 | 25-35|1.30-1.40| 0.6-2 |0.17-0.20| 2.6-5.8 | 0.5-2.0 | .28 | .28 | | |

 | 40-58 | 25-35|1.30-1.40| 0.6-2 |0.17-0.20| 2.6-5.8 | 0.5-2.0 | .28 | .28 | | |

 | 58-65 | 18-35|1.35-1.50| 0.6-2 |0.15-0.19| 0.4-5.8 | 0.0-1.0 | .28 | .28 | | |

 | | | | | | | | | | | |

982: | | | | | | | | | | | |

 Maxmore---------------| 0-8 | 25-35|1.35-1.40| 0.6-2 |0.21-0.23| 2.6-5.8 | 6.0-8.0 | .28 | .28 | 5 | 7 | 38

 | 8-20 | 25-35|1.35-1.40| 0.6-2 |0.21-0.23| 2.6-5.8 | 3.0-6.0 | .28 | .28 | | |

 | 20-50 | 25-35|1.40-1.50| 0.6-2 |0.18-0.20| 2.6-5.8 | 0.5-2.0 | .32 | .32 | | |

 | 50-80 | 20-28|1.65-1.75| 0.6-2 |0.17-0.19| 1.0-3.5 | 0.0-0.5 | .32 | .32 | | |

 | | | | | | | | | | | |

1152: | | | | | | | | | | | |

 Marshan, 24 to 40 | | | | | | | | | | | |

 inches to sand and | | | | | | | | | | | |

 gravel---------------| 0-10 | 25-35|1.30-1.40| 0.6-2 |0.20-0.22| 2.6-5.8 | 5.0-6.0 | .28 | .28 | 4 | 6 | 48

 | 10-14 | 25-35|1.30-1.40| 0.6-2 |0.20-0.22| 2.6-5.8 | 2.0-5.0 | .28 | .28 | | |

 | 14-18 | 25-35|1.40-1.55| 0.6-2 |0.17-0.22| 2.6-5.8 | 1.0-3.0 | .28 | .28 | | |

 | 18-23 | 25-35|1.40-1.55| 0.6-2 |0.17-0.22| 2.6-5.8 | 0.5-1.0 | .28 | .28 | | |

 | 23-30 | 18-30|1.45-1.55| 0.6-2 |0.15-0.19| 0.4-4.2 | 0.5-1.0 | .28 | .28 | | |

 | 30-40 | 0-5 |1.55-1.65| 6-20 |0.02-0.05| 0.0-0.0 | 0.0-0.5 | .15 | .15 | | |

 | 40-60 | 0-5 |1.55-1.65| 6-20 |0.02-0.05| 0.0-0.0 | 0.0-0.5 | .15 | .15 | | |

 | | | | | | | | | | | |

1226: | | | | | | | | | | | |

 Lawler, 24 to 40 | | | | | | | | | | | |

 inches to sand and | | | | | | | | | | | |

 gravel---------------| 0-8 | 18-27|1.40-1.45| 0.6-2 |0.20-0.22| 0.4-3.2 | 4.0-5.0 | .24 | .24 | 4 | 6 | 48

 | 8-15 | 18-27|1.40-1.45| 0.6-2 |0.20-0.22| 0.4-3.2 | 2.5-4.0 | .24 | .24 | | |

 | 15-21 | 18-27|1.40-1.45| 0.6-2 |0.20-0.22| 0.4-3.2 | 1.5-3.0 | .24 | .24 | | |

 | 21-32 | 20-28|1.45-1.60| 0.6-2 |0.16-0.18| 1.0-3.5 | 0.5-2.0 | .28 | .28 | | |

 | 32-37 | 20-28|1.45-1.60| 0.6-2 |0.16-0.18| 1.0-3.5 | 0.5-2.0 | .28 | .28 | | |

 | 37-60 | 2-8 |1.60-1.75| 20-101 |0.02-0.04| 0.0-0.0 | 0.0-0.5 | .10 | .10 | | |

 | | | | | | | | | | | |

1285G: | | | | | | | | | | | |

 Burkhardt-------------| 0-10 | 5-13|1.35-1.55| 2-6 |0.11-0.15| 0.0-0.0 | 1.0-2.0 | .20 | .20 | 2 | 3 | 86

 | 10-17 | 8-18|1.55-1.65| 2-6 |0.19-0.22| 0.0-0.4 | 0.0-0.5 | .24 | .24 | | |

 | 17-19 | 1-6 |1.50-1.60| 6-20 |0.02-0.04| 0.0-0.0 | 0.0-0.5 | .10 | .10 | | |

 | 19-60 | 1-6 |1.50-1.60| 6-20 |0.02-0.04| 0.0-0.0 | 0.0-0.5 | .10 | .10 | | |

 | | | | | | | | | | | |
Black Hawk County, Iowa 457

Table 19.--Physical Properties of the Soils--Continued

________________________________________________________________________________________________________________________

 | | | | | | | |Erosion factors|Wind |Wind

 Map symbol | Depth | Clay | Moist | Permea- |Available| Linear | Organic |_______________|erodi-|erodi-

 and soil name | | | bulk | bility | water |extensi- | matter | | | |bility|bility

 | | | density | |capacity | bility | | Kw | Kf | T |group |index ________________________________________________________________________________________________________________________

 | In | Pct | g/cc | In/hr | In/in | Pct | Pct | | | | |

 | | | | | | | | | | | |

1285G: | | | | | | | | | | | |

 Bassett---------------| 0-5 | 18-25|1.45-1.50| 0.6-2 |0.19-0.21| 0.4-2.6 | 2.5-3.5 | .28 | .28 | 5 | 6 | 48

 | 5-10 | 18-25|1.45-1.50| 0.6-2 |0.19-0.21| 0.4-2.6 | 0.5-1.0 | .28 | .28 | | |

 | 10-14 | 18-25|1.45-1.50| 0.6-2 |0.19-0.21| 0.4-2.6 | 0.5-1.0 | .28 | .28 | | |

 | 14-43 | 20-28|1.55-1.65| 0.6-2 |0.17-0.19| 1.0-3.5 | 0.0-0.5 | .28 | .28 | | |

 | 43-59 | 20-28|1.55-1.65| 0.6-2 |0.17-0.19| 1.0-3.5 | 0.0-0.5 | .28 | .28 | | |

 | 59-73 | 20-24|1.65-1.75| 0.6-2 |0.17-0.19| 1.0-2.3 | 0.0-0.5 | .37 | .37 | | |

 | | | | | | | | | | | |

 Chelsea---------------| 0-4 | 8-15|1.50-1.55| 6-20 |0.10-0.15| 0.0-0.0 | 0.5-1.5 | .17 | .17 | 5 | 2 | 134

 | 4-30 | 5-10|1.55-1.70| 6-20 |0.06-0.08| 0.0-0.0 | 0.0-0.5 | .17 | .17 | | |

 | 30-70 | 5-10|1.55-1.70| 6-20 |0.06-0.08| 0.0-0.0 | 0.0-0.5 | .17 | .17 | | |

 | | | | | | | | | | | |

1585: | | | | | | | | | | | |

 Spillville, frequently| | | | | | | | | | | |

 flooded--------------| 0-54 | 18-26|1.45-1.55| 0.6-2 |0.19-0.21| 0.4-2.9 | 3.0-5.0 | .24 | .24 | 5 | 6 | 48

 | 54-60 | 14-24|1.55-1.70| 0.6-6 |0.15-0.18| 0.0-2.3 | 1.0-3.0 | .28 | .28 | | |

 | | | | | | | | | | | |

 Coland, frequently | | | | | | | | | | | |

 flooded--------------| 0-32 | 27-35|1.40-1.50| 0.6-2 |0.20-0.22| 3.2-5.8 | 3.0-6.0 | .24 | .24 | 5 | 6 | 48

 | 32-40 | 25-35|1.40-1.50| 0.6-2 |0.20-0.22| 2.6-5.8 | 3.0-6.0 | .24 | .24 | | |

 | 40-44 | 12-28|1.50-1.65| 0.6-6 |0.13-0.17| 0.0-3.5 | 0.0-2.0 | .28 | .28 | | |

 | 44-52 | 12-28|1.50-1.65| 0.6-6 |0.13-0.17| 0.0-3.5 | 0.0-2.0 | .28 | .28 | | |

 | 52-60 | 12-28|1.50-1.65| 0.6-6 |0.13-0.17| 0.0-3.5 | 0.0-1.0 | .28 | .28 | | |

 | | | | | | | | | | | |

 Aquolls, ponded. | | | | | | | | | | | |

 | | | | | | | | | | | |

1586: | | | | | | | | | | | |

 Sigglekov, frequently | | | | | | | | | | | |

 flooded--------------| 0-9 | 10-15|1.50-1.55| 2-6 |0.12-0.15| 0.0-0.0 | 0.5-1.5 | .24 | .24 | 5 | 3 | 86

 | 9-15 | 2-10|1.50-1.75| 6-20 |0.02-0.04| 0.0-0.0 | 0.0-0.5 | .15 | .15 | | |

 | 15-35 | 2-10|1.50-1.75| 6-20 |0.02-0.04| 0.0-0.0 | 0.0-0.5 | .15 | .15 | | |

 | 35-80 | 2-10|1.50-1.75| 6-20 |0.02-0.04| 0.0-0.0 | 0.0-0.5 | .15 | .15 | | |

 | | | | | | | | | | | |

 Fluvaquents, | | | | | | | | | | | |

 frequently flooded. | | | | | | | | | | | |

 | | | | | | | | | | | |

 Aquents, ponded. | | | | | | | | | | | |

 | | | | | | | | | | | |

4000. | | | | | | | | | | | |

 Urban land | | | | | | | | | | | |

 | | | | | | | | | | | |

4007: | | | | | | | | | | | |

 Wiota-----------------| 0-8 | 24-32|1.30-1.35| 0.6-2 |0.21-0.23| 2.3-4.8 | 3.5-4.5 | .28 | .28 | 5 | 6 | 48

 | 8-22 | 24-32|1.30-1.35| 0.6-2 |0.21-0.23| 2.3-4.8 | 1.0-3.0 | .28 | .28 | | |

 | 22-28 | 30-36|1.30-1.35| 0.6-2 |0.18-0.20| 4.2-6.1 | 1.0-2.0 | .28 | .28 | | |

 | 28-48 | 30-36|1.30-1.40| 0.6-2 |0.18-0.20| 4.2-6.1 | 0.5-1.0 | .43 | .43 | | |

 | 48-54 | 25-34|1.40-1.45| 0.6-2 |0.18-0.20| 2.6-5.4 | 0.0-0.5 | .43 | .43 | | |

 | 54-80 | 4-10|1.55-1.65| 6-20 |0.08-0.10| 0.0-0.0 | 0.0-0.5 | .20 | .20 | | |

 | | | | | | | | | | | |

 Urban land. | | | | | | | | | | | |

 | | | | | | | | | | | |

4041: | | | | | | | | | | | |

 Sparta----------------| 0-11 | 3-10|1.20-1.40| 2-6 |0.09-0.12| 0.0-0.0 | 1.0-2.0 | .17 | .17 | 5 | 2 | 134

 | 11-15 | 3-10|1.20-1.40| 2-6 |0.09-0.12| 0.0-0.0 | 0.5-1.0 | .17 | .17 | | |

 | 15-34 | 1-8 |1.40-1.60| 6-20 |0.05-0.11| 0.0-0.0 | 0.0-0.5 | .15 | .15 | | |

 | 34-60 | 0-5 |1.50-1.70| 6-20 |0.04-0.07| 0.0-0.0 | 0.0-0.5 | .15 | .15 | | |

 | | | | | | | | | | | |

 Urban land. | | | | | | | | | | | |

 | | | | | | | | | | | |
458 Soil Survey of

Table 19.--Physical Properties of the Soils--Continued

________________________________________________________________________________________________________________________

 | | | | | | | |Erosion factors|Wind |Wind

 Map symbol | Depth | Clay | Moist | Permea- |Available| Linear | Organic |_______________|erodi-|erodi-

 and soil name | | | bulk | bility | water |extensi- | matter | | | |bility|bility

 | | | density | |capacity | bility | | Kw | Kf | T |group |index ________________________________________________________________________________________________________________________

 | In | Pct | g/cc | In/hr | In/in | Pct | Pct | | | | |

 | | | | | | | | | | | |

4041B: | | | | | | | | | | | |

 Sparta----------------| 0-11 | 3-10|1.20-1.40| 2-6 |0.09-0.12| 0.0-0.0 | 1.0-2.0 | .17 | .17 | 5 | 2 | 134

 | 11-15 | 3-10|1.20-1.40| 2-6 |0.09-0.12| 0.0-0.0 | 0.5-1.0 | .17 | .17 | | |

 | 15-34 | 1-8 |1.40-1.60| 6-20 |0.05-0.11| 0.0-0.0 | 0.0-0.5 | .15 | .15 | | |

 | 34-60 | 0-5 |1.50-1.70| 6-20 |0.04-0.07| 0.0-0.0 | 0.0-0.5 | .15 | .15 | | |

 | | | | | | | | | | | |

 Urban land. | | | | | | | | | | | |

 | | | | | | | | | | | |

4041C: | | | | | | | | | | | |

 Sparta----------------| 0-9 | 3-10|1.20-1.40| 2-6 |0.09-0.12| 0.0-0.0 | 1.0-2.0 | .17 | .17 | 5 | 2 | 134

 | 9-14 | 3-10|1.20-1.40| 2-6 |0.09-0.12| 0.0-0.0 | 0.5-1.0 | .17 | .17 | | |

 | 14-32 | 1-8 |1.40-1.60| 6-20 |0.05-0.11| 0.0-0.0 | 0.0-0.5 | .15 | .15 | | |

 | 32-60 | 0-5 |1.50-1.70| 6-20 |0.04-0.07| 0.0-0.0 | 0.0-0.5 | .15 | .15 | | |

 | | | | | | | | | | | |

 Urban land. | | | | | | | | | | | |

 | | | | | | | | | | | |

4041D: | | | | | | | | | | | |

 Sparta----------------| 0-9 | 3-10|1.20-1.40| 2-6 |0.09-0.12| 0.0-0.0 | 1.0-2.0 | .17 | .17 | 5 | 2 | 134

 | 9-14 | 3-10|1.20-1.40| 2-6 |0.09-0.12| 0.0-0.0 | 0.5-1.0 | .17 | .17 | | |

 | 14-30 | 1-8 |1.40-1.60| 6-20 |0.05-0.11| 0.0-0.0 | 0.0-0.5 | .15 | .15 | | |

 | 30-60 | 0-5 |1.50-1.70| 6-20 |0.04-0.07| 0.0-0.0 | 0.0-0.5 | .15 | .15 | | |

 | | | | | | | | | | | |

 Urban land. | | | | | | | | | | | |

 | | | | | | | | | | | |

4063B: | | | | | | | | | | | |

 Chelsea---------------| 0-8 | 8-15|1.50-1.55| 6-20 |0.10-0.15| 0.0-0.0 | 0.5-1.5 | .17 | .17 | 5 | 2 | 134

 | 8-36 | 5-10|1.55-1.70| 6-20 |0.06-0.08| 0.0-0.0 | 0.0-0.5 | .17 | .17 | | |

 | 36-70 | 5-10|1.55-1.70| 6-20 |0.06-0.08| 0.0-0.0 | 0.0-0.5 | .17 | .17 | | |

 | | | | | | | | | | | |

 Urban land. | | | | | | | | | | | |

 | | | | | | | | | | | |

4063C: | | | | | | | | | | | |

 Chelsea---------------| 0-8 | 8-15|1.50-1.55| 6-20 |0.10-0.15| 0.0-0.0 | 0.5-1.5 | .17 | .17 | 5 | 2 | 134

 | 8-36 | 5-10|1.55-1.70| 6-20 |0.06-0.08| 0.0-0.0 | 0.0-0.5 | .17 | .17 | | |

 | 36-70 | 5-10|1.55-1.70| 6-20 |0.06-0.08| 0.0-0.0 | 0.0-0.5 | .17 | .17 | | |

 | | | | | | | | | | | |

 Urban land. | | | | | | | | | | | |

 | | | | | | | | | | | |

4063D: | | | | | | | | | | | |

 Chelsea---------------| 0-8 | 8-15|1.50-1.55| 6-20 |0.10-0.15| 0.0-0.0 | 0.5-1.5 | .17 | .17 | 5 | 2 | 134

 | 8-32 | 5-10|1.55-1.70| 6-20 |0.06-0.08| 0.0-0.0 | 0.0-0.5 | .17 | .17 | | |

 | 32-70 | 5-10|1.55-1.70| 6-20 |0.06-0.08| 0.0-0.0 | 0.0-0.5 | .17 | .17 | | |

 | | | | | | | | | | | |

 Urban land. | | | | | | | | | | | |

 | | | | | | | | | | | |

4083B: | | | | | | | | | | | |

 Kenyon----------------| 0-8 | 18-26|1.40-1.45| 0.6-2 |0.20-0.22| 0.4-2.9 | 3.0-4.0 | .24 | .24 | 5 | 6 | 48

 | 8-14 | 18-26|1.40-1.45| 0.6-2 |0.20-0.22| 0.4-2.9 | 2.0-3.0 | .24 | .24 | | |

 | 14-19 | 18-26|1.40-1.45| 0.6-2 |0.20-0.22| 0.4-2.9 | 1.0-3.0 | .24 | .24 | | |

 | 19-47 | 20-30|1.45-1.65| 0.6-2 |0.17-0.19| 1.0-4.2 | 0.0-1.0 | .28 | .28 | | |

 | 47-54 | 20-24|1.65-1.75| 0.6-2 |0.17-0.19| 1.0-2.3 | 0.0-0.5 | .37 | .37 | | |

 | 54-76 | 20-24|1.65-1.75| 0.6-2 |0.17-0.19| 1.0-2.3 | 0.0-0.5 | .37 | .37 | | |

 Urban land. | | | | | | | | | | | |

 | | | | | | | | | | | |

4083C: | | | | | | | | | | | |

 Kenyon----------------| 0-8 | 18-26|1.40-1.45| 0.6-2 |0.20-0.22| 0.4-2.9 | 3.0-4.0 | .24 | .24 | 5 | 6 | 48

 | 8-14 | 18-26|1.40-1.45| 0.6-2 |0.20-0.22| 0.4-2.9 | 2.0-3.0 | .24 | .24 | | |

 | 14-19 | 18-26|1.40-1.45| 0.6-2 |0.20-0.22| 0.4-2.9 | 1.0-3.0 | .24 | .24 | | |

 | 19-47 | 20-30|1.45-1.65| 0.6-2 |0.17-0.19| 1.0-4.2 | 0.0-1.0 | .28 | .28 | | |

 | 47-54 | 20-24|1.65-1.75| 0.6-2 |0.17-0.19| 1.0-2.3 | 0.0-0.5 | .37 | .37 | | |

 | 54-76 | 20-24|1.65-1.75| 0.6-2 |0.17-0.19| 1.0-2.3 | 0.0-0.5 | .37 | .37 | | |

 | | | | | | | | | | | |

 Urban land. | | | | | | | | | | | |

 | | | | | | | | | | | |
Black Hawk County, Iowa 459

Table 19.--Physical Properties of the Soils--Continued

________________________________________________________________________________________________________________________

 | | | | | | | |Erosion factors|Wind |Wind

 Map symbol | Depth | Clay | Moist | Permea- |Available| Linear | Organic |_______________|erodi-|erodi-

 and soil name | | | bulk | bility | water |extensi- | matter | | | |bility|bility

 | | | density | |capacity | bility | | Kw | Kf | T |group |index ________________________________________________________________________________________________________________________

 | In | Pct | g/cc | In/hr | In/in | Pct | Pct | | | | |

 | | | | | | | | | | | |

4083D: | | | | | | | | | | | |

 Kenyon----------------| 0-8 | 18-26|1.40-1.45| 0.6-2 |0.20-0.22| 0.4-2.9 | 3.0-4.0 | .24 | .24 | 5 | 6 | 48

 | 8-14 | 18-26|1.40-1.45| 0.6-2 |0.20-0.22| 0.4-2.9 | 2.0-3.0 | .24 | .24 | | |

 | 14-19 | 18-26|1.40-1.45| 0.6-2 |0.20-0.22| 0.4-2.9 | 1.0-3.0 | .24 | .24 | | |

 | 19-47 | 20-30|1.45-1.65| 0.6-2 |0.17-0.19| 1.0-4.2 | 0.0-1.0 | .28 | .28 | | |

 | 47-54 | 20-24|1.65-1.75| 0.6-2 |0.17-0.19| 1.0-2.3 | 0.0-0.5 | .37 | .37 | | |

 | 54-76 | 20-24|1.65-1.75| 0.6-2 |0.17-0.19| 1.0-2.3 | 0.0-0.5 | .37 | .37 | | |

 | | | | | | | | | | | |

 Urban land. | | | | | | | | | | | |

 | | | | | | | | | | | |

4084: | | | | | | | | | | | |

 Clyde-----------------| 0-8 | 25-32|1.35-1.40| 0.6-2 |0.21-0.23| 2.6-4.8 | 6.0-9.0 | .28 | .28 | 5 | 7 | 38

 | 8-17 | 28-32|1.35-1.40| 0.6-2 |0.21-0.23| 3.5-4.8 | 2.0-6.0 | .28 | .28 | | |

 | 17-23 | 28-32|1.35-1.40| 0.6-2 |0.21-0.23| 3.5-4.8 | 1.0-4.0 | .28 | .28 | | |

 | 23-41 | 22-30|1.45-1.65| 0.6-2 |0.18-0.20| 1.6-4.2 | 0.5-2.0 | .37 | .37 | | |

 | 41-44 | 10-15|1.60-1.70| 0.6-2 |0.11-0.13| 0.0-0.0 | 0.5-1.0 | .37 | .37 | | |

 | 44-54 | 20-28|1.65-1.75| 0.6-2 |0.17-0.19| 1.0-3.5 | 0.0-0.5 | .37 | .37 | | |

 | 54-66 | 20-28|1.65-1.75| 0.6-2 |0.17-0.19| 1.0-3.5 | 0.0-0.5 | .37 | .37 | | |

 | | | | | | | | | | | |

 Urban land. | | | | | | | | | | | |

 | | | | | | | | | | | |

4088: | | | | | | | | | | | |

 Nevin-----------------| 0-8 | 26-29|1.30-1.35| 0.6-2 |0.21-0.23| 2.9-3.9 | 4.0-6.0 | .28 | .28 | 5 | 7 | 38

 | 8-24 | 26-29|1.30-1.35| 0.6-2 |0.21-0.23| 2.9-3.9 | 2.0-4.0 | .28 | .28 | | |

 | 24-30 | 26-29|1.30-1.35| 0.6-2 |0.21-0.23| 2.9-3.9 | 1.0-3.0 | .28 | .28 | | |

 | 30-46 | 30-35|1.30-1.40| 0.6-2 |0.18-0.20| 4.2-5.8 | 0.5-2.0 | .32 | .32 | | |

 | 46-58 | 25-36|1.25-1.35| 0.6-2 |0.18-0.20| 2.6-6.1 | 0.5-2.0 | .28 | .28 | | |

 | 58-80 | 3-10|1.30-1.35| 0.6-2 |0.05-0.10| 0.0-0.0 | 0.0-0.5 | .15 | .15 | | |

 | | | | | | | | | | | |

 Urban land. | | | | | | | | | | | |

 | | | | | | | | | | | |

4133: | | | | | | | | | | | |

 Colo, occasionally | | | | | | | | | | | |

 flooded--------------| 0-8 | 25-36|1.28-1.32| 0.6-2 |0.21-0.23| 2.6-6.1 | 5.0-7.0 | .28 | .28 | 5 | 7 | 38

 | 8-34 | 25-36|1.28-1.32| 0.6-2 |0.21-0.23| 2.6-6.1 | 3.0-6.0 | .28 | .28 | | |

 | 34-40 | 27-36|1.28-1.32| 0.6-2 |0.21-0.23| 3.2-6.1 | 2.0-4.0 | .28 | .28 | | |

 | 40-46 | 30-35|1.25-1.35| 0.6-2 |0.18-0.20| 4.2-5.8 | 1.0-3.0 | .28 | .28 | | |

 | 46-52 | 30-35|1.25-1.35| 0.6-2 |0.18-0.20| 4.2-5.8 | 0.5-2.0 | .28 | .28 | | |

 | 52-60 | 25-35|1.35-1.45| 0.6-2 |0.18-0.20| 2.6-5.8 | 0.0-2.0 | .32 | .32 | | |

 | | | | | | | | | | | |

 Urban land. | | | | | | | | | | | |

 | | | | | | | | | | | |

4135: | | | | | | | | | | | |

 Coland, occasionally | | | | | | | | | | | |

 flooded--------------| 0-8 | 27-35|1.40-1.50| 0.6-2 |0.20-0.22| 3.2-5.8 | 5.0-7.0 | .24 | .24 | 5 | 6 | 48

 | 8-32 | 27-35|1.40-1.50| 0.6-2 |0.20-0.22| 3.2-5.8 | 3.0-6.0 | .24 | .24 | | |

 | 32-40 | 25-35|1.40-1.50| 0.6-2 |0.20-0.22| 2.6-5.8 | 2.0-4.0 | .24 | .24 | | |

 | 40-44 | 12-28|1.50-1.65| 0.6-6 |0.13-0.17| 0.0-3.5 | 0.0-2.0 | .28 | .28 | | |

 | 44-52 | 12-28|1.50-1.65| 0.6-6 |0.13-0.17| 0.0-3.5 | 0.0-2.0 | .28 | .28 | | |

 | 52-66 | 12-28|1.50-1.65| 0.6-6 |0.13-0.17| 0.0-3.5 | 0.0-1.0 | .28 | .28 | | |

 | | | | | | | | | | | |

 Urban land. | | | | | | | | | | | |

 | | | | | | | | | | | |

4152: | | | | | | | | | | | |

 Marshan, 24 to 40 | | | | | | | | | | | |

 inches to sand and | | | | | | | | | | | |

 gravel---------------| 0-10 | 25-35|1.30-1.40| 0.6-2 |0.20-0.22| 2.6-5.8 | 5.0-6.0 | .28 | .28 | 4 | 6 | 48

 | 10-14 | 25-35|1.30-1.40| 0.6-2 |0.20-0.22| 2.6-5.8 | 2.0-5.0 | .28 | .28 | | |

 | 14-18 | 25-35|1.40-1.55| 0.6-2 |0.17-0.22| 2.6-5.8 | 1.0-3.0 | .28 | .28 | | |

 | 18-23 | 25-35|1.40-1.55| 0.6-2 |0.17-0.22| 2.6-5.8 | 0.5-1.0 | .28 | .28 | | |

 | 23-30 | 18-30|1.45-1.55| 0.6-2 |0.15-0.19| 0.4-4.2 | 0.5-1.0 | .28 | .28 | | |

 | 30-40 | 0-5 |1.55-1.65| 6-20 |0.02-0.05| 0.0-0.0 | 0.0-0.5 | .15 | .15 | | |

 | 40-60 | 0-5 |1.55-1.65| 6-20 |0.02-0.05| 0.0-0.0 | 0.0-0.5 | .15 | .15 | | |

 | | | | | | | | | | | |
460 Soil Survey of

Table 19.--Physical Properties of the Soils--Continued

________________________________________________________________________________________________________________________

 | | | | | | | |Erosion factors|Wind |Wind

 Map symbol | Depth | Clay | Moist | Permea- |Available| Linear | Organic |_______________|erodi-|erodi-

 and soil name | | | bulk | bility | water |extensi- | matter | | | |bility|bility

 | | | density | |capacity | bility | | Kw | Kf | T |group |index ________________________________________________________________________________________________________________________

 | In | Pct | g/cc | In/hr | In/in | Pct | Pct | | | | |

 | | | | | | | | | | | |

4152: | | | | | | | | | | | |

 Urban land. | | | | | | | | | | | |

 | | | | | | | | | | | |

4159: | | | | | | | | | | | |

 Finchford-------------| 0-8 | 5-10|1.50-1.55| 6-20 |0.10-0.12| 0.0-0.0 | 1.0-2.0 | .17 | .17 | 5 | 2 | 134

 | 8-18 | 5-10|1.50-1.55| 6-20 |0.10-0.12| 0.0-0.0 | 0.5-1.0 | .17 | .17 | | |

 | 18-30 | 2-8 |1.50-1.60| 20-101 |0.04-0.06| 0.0-0.0 | 0.0-0.5 | .15 | .15 | | |

 | 30-55 | 2-5 |1.60-1.70| 20-101 |0.02-0.04| 0.0-0.0 | 0.0-0.5 | .15 | .15 | | |

 | 55-70 | 2-5 |1.60-1.70| 20-101 |0.02-0.04| 0.0-0.0 | 0.0-0.5 | .15 | .15 | | |

 | 70-80 | 2-5 |1.60-1.70| 20-101 |0.02-0.04| 0.0-0.0 | 0.0-0.5 | .15 | .15 | | |

 | | | | | | | | | | | |

 Urban land. | | | | | | | | | | | |

 | | | | | | | | | | | |

4159C: | | | | | | | | | | | |

 Finchford-------------| 0-8 | 5-10|1.50-1.55| 6-20 |0.10-0.12| 0.0-0.0 | 1.0-2.0 | .17 | .17 | 5 | 2 | 134

 | 8-15 | 5-10|1.50-1.55| 6-20 |0.10-0.12| 0.0-0.0 | 0.5-1.0 | .17 | .17 | | |

 | 15-26 | 2-8 |1.50-1.60| 20-101 |0.04-0.06| 0.0-0.0 | 0.0-0.5 | .15 | .15 | | |

 | 26-50 | 2-5 |1.60-1.70| 20-101 |0.02-0.04| 0.0-0.0 | 0.0-0.5 | .15 | .15 | | |

 | 50-65 | 2-5 |1.60-1.70| 20-101 |0.02-0.04| 0.0-0.0 | 0.0-0.5 | .15 | .15 | | |

 | 65-80 | 2-5 |1.60-1.70| 20-101 |0.02-0.04| 0.0-0.0 | 0.0-0.5 | .15 | .15 | | |

 | | | | | | | | | | | |

 Urban land. | | | | | | | | | | | |

 | | | | | | | | | | | |

4171B: | | | | | | | | | | | |

 Bassett---------------| 0-8 | 18-25|1.45-1.50| 0.6-2 |0.19-0.21| 0.4-2.6 | 2.5-3.5 | .28 | .28 | 5 | 6 | 48

 | 8-10 | 18-25|1.45-1.50| 0.6-2 |0.19-0.21| 0.4-2.6 | 0.5-1.0 | .28 | .28 | | |

 | 10-14 | 18-25|1.45-1.50| 0.6-2 |0.19-0.21| 0.4-2.6 | 0.5-1.0 | .28 | .28 | | |

 | 14-43 | 20-28|1.55-1.65| 0.6-2 |0.17-0.19| 1.0-3.5 | 0.0-0.5 | .28 | .28 | | |

 | 43-59 | 20-28|1.55-1.65| 0.6-2 |0.17-0.19| 1.0-3.5 | 0.0-0.5 | .28 | .28 | | |

 | 59-73 | 20-24|1.65-1.75| 0.6-2 |0.17-0.19| 1.0-2.3 | 0.0-0.5 | .37 | .37 | | |

 | | | | | | | | | | | |

 Urban land. | | | | | | | | | | | |

 | | | | | | | | | | | |

4171D: | | | | | | | | | | | |

 Bassett---------------| 0-8 | 18-25|1.45-1.50| 0.6-2 |0.19-0.21| 0.4-2.6 | 2.5-3.5 | .28 | .28 | 5 | 6 | 48

 | 8-10 | 18-25|1.45-1.50| 0.6-2 |0.19-0.21| 0.4-2.6 | 0.5-1.0 | .28 | .28 | | |

 | 10-14 | 18-25|1.45-1.50| 0.6-2 |0.19-0.21| 0.4-2.6 | 0.5-1.0 | .28 | .28 | | |

 | 14-43 | 20-28|1.55-1.65| 0.6-2 |0.17-0.19| 1.0-3.5 | 0.0-0.5 | .28 | .28 | | |

 | 43-59 | 20-28|1.55-1.65| 0.6-2 |0.17-0.19| 1.0-3.5 | 0.0-0.5 | .28 | .28 | | |

 | 59-73 | 20-24|1.65-1.75| 0.6-2 |0.17-0.19| 1.0-2.3 | 0.0-0.5 | .37 | .37 | | |

 | | | | | | | | | | | |

 Urban land. | | | | | | | | | | | |

 | | | | | | | | | | | |

4175: | | | | | | | | | | | |

 Dickinson-------------| 0-9 | 12-18|1.50-1.55| 2-6 |0.12-0.15| 0.0-0.4 | 2.0-3.0 | .20 | .20 | 4 | 3 | 86

 | 9-18 | 10-18|1.45-1.55| 2-6 |0.12-0.15| 0.0-0.4 | 0.5-2.5 | .20 | .20 | | |

 | 18-30 | 10-18|1.45-1.55| 6-20 |0.12-0.15| 0.0-0.4 | 0.0-0.5 | .20 | .20 | | |

 | 30-36 | 5-10|1.55-1.65| 6-20 |0.08-0.10| 0.0-0.0 | 0.0-0.5 | .20 | .20 | | |

 | 36-60 | 5-10|1.60-1.70| 6-20 |0.02-0.04| 0.0-0.0 | 0.0-0.5 | .15 | .15 | | |

 | | | | | | | | | | | |

 Urban land. | | | | | | | | | | | |

 | | | | | | | | | | | |

4175B: | | | | | | | | | | | |

 Dickinson-------------| 0-9 | 12-18|1.50-1.55| 2-6 |0.12-0.15| 0.0-0.4 | 1.5-2.5 | .20 | .20 | 4 | 3 | 86

 | 9-18 | 10-18|1.45-1.55| 2-6 |0.12-0.15| 0.0-0.4 | 0.5-2.5 | .20 | .20 | | |

 | 18-30 | 10-18|1.45-1.55| 6-20 |0.12-0.15| 0.0-0.4 | 0.0-0.5 | .20 | .20 | | |

 | 30-36 | 5-10|1.55-1.65| 6-20 |0.08-0.10| 0.0-0.0 | 0.0-0.5 | .20 | .20 | | |

 | 36-60 | 5-10|1.60-1.70| 6-20 |0.02-0.04| 0.0-0.0 | 0.0-0.5 | .15 | .15 | | |

 | | | | | | | | | | | |

 Urban land. | | | | | | | | | | | |

 | | | | | | | | | | | |
Black Hawk County, Iowa 461

Table 19.--Physical Properties of the Soils--Continued

________________________________________________________________________________________________________________________

 | | | | | | | |Erosion factors|Wind |Wind

 Map symbol | Depth | Clay | Moist | Permea- |Available| Linear | Organic |_______________|erodi-|erodi-

 and soil name | | | bulk | bility | water |extensi- | matter | | | |bility|bility

 | | | density | |capacity | bility | | Kw | Kf | T |group |index ________________________________________________________________________________________________________________________

 | In | Pct | g/cc | In/hr | In/in | Pct | Pct | | | | |

 | | | | | | | | | | | |

4177: | | | | | | | | | | | |

 Saude-----------------| 0-7 | 18-24|1.40-1.45| 0.6-2 |0.20-0.22| 0.4-2.3 | 3.0-4.0 | .24 | .24 | 4 | 6 | 48

 | 7-13 | 18-24|1.40-1.45| 0.6-2 |0.20-0.22| 0.4-2.3 | 2.0-4.0 | .24 | .24 | | |

 | 13-16 | 12-18|1.40-1.50| 0.6-6 |0.15-0.19| 0.0-0.4 | 1.0-3.0 | .24 | .24 | | |

 | 16-24 | 12-18|1.40-1.50| 0.6-6 |0.15-0.19| 0.0-0.4 | 0.5-1.0 | .24 | .24 | | |

 | 24-28 | 12-18|1.40-1.50| 0.6-6 |0.15-0.19| 0.0-0.4 | 0.5-1.0 | .24 | .24 | | |

 | 28-36 | 2-8 |1.50-1.75| 20-101 |0.02-0.06| 0.0-0.0 | 0.0-0.5 | .10 | .20 | | |

 | 36-60 | 2-8 |1.50-1.75| 20-101 |0.02-0.06| 0.0-0.0 | 0.0-0.5 | .10 | .20 | | |

 | | | | | | | | | | | |

 Urban land. | | | | | | | | | | | |

 | | | | | | | | | | | |

4177B: | | | | | | | | | | | |

 Saude-----------------| 0-7 | 18-24|1.40-1.45| 0.6-2 |0.20-0.22| 0.4-2.3 | 3.0-4.0 | .24 | .24 | 4 | 6 | 48

 | 7-13 | 18-24|1.40-1.45| 0.6-2 |0.20-0.22| 0.4-2.3 | 2.0-4.0 | .24 | .24 | | |

 | 13-16 | 12-18|1.40-1.50| 0.6-6 |0.15-0.19| 0.0-0.4 | 1.0-3.0 | .24 | .24 | | |

 | 16-24 | 12-18|1.40-1.50| 0.6-6 |0.15-0.19| 0.0-0.4 | 0.5-1.0 | .24 | .24 | | |

 | 24-28 | 12-18|1.40-1.50| 0.6-6 |0.15-0.19| 0.0-0.4 | 0.5-1.0 | .24 | .24 | | |

 | 28-36 | 2-8 |1.50-1.75| 20-101 |0.02-0.06| 0.0-0.0 | 0.0-0.5 | .10 | .20 | | |

 | 36-60 | 2-8 |1.50-1.75| 20-101 |0.02-0.06| 0.0-0.0 | 0.0-0.5 | .10 | .20 | | |

 | | | | | | | | | | | |

 Urban land. | | | | | | | | | | | |

 | | | | | | | | | | | |

4178: | | | | | | | | | | | |

 Waukee----------------| 0-8 | 18-24|1.40-1.45| 0.6-2 |0.20-0.22| 0.4-2.3 | 3.0-4.0 | .24 | .24 | 4 | 6 | 48

 | 8-16 | 18-24|1.40-1.45| 0.6-2 |0.20-0.22| 0.4-2.3 | 2.0-3.0 | .24 | .24 | | |

 | 16-20 | 18-27|1.40-1.45| 0.6-2 |0.15-0.19| 0.4-3.2 | 0.5-2.0 | .28 | .28 | | |

 | 20-35 | 18-27|1.40-1.50| 0.6-2 |0.15-0.19| 0.4-3.2 | 0.5-2.0 | .28 | .28 | | |

 | 35-44 | 2-8 |1.50-1.75| 20-101 |0.02-0.06| 0.0-0.0 | 0.0-0.5 | .10 | .17 | | |

 | 44-66 | 2-8 |1.50-1.75| 20-101 |0.02-0.06| 0.0-0.0 | 0.0-0.5 | .10 | .17 | | |

 | | | | | | | | | | | |

 Urban land. | | | | | | | | | | | |

 | | | | | | | | | | | |

4184: | | | | | | | | | | | |

 Klinger---------------| 0-9 | 25-30|1.30-1.35| 0.6-2 |0.22-0.24| 2.6-4.2 | 5.0-6.0 | .28 | .28 | 5 | 7 | 38

 | 9-13 | 25-30|1.30-1.35| 0.6-2 |0.22-0.24| 2.6-4.2 | 2.0-5.0 | .28 | .28 | | |

 | 13-19 | 27-30|1.30-1.35| 0.6-2 |0.22-0.24| 3.2-4.2 | 1.0-4.0 | .28 | .28 | | |

 | 19-31 | 28-35|1.35-1.45| 0.6-2 |0.18-0.20| 3.5-5.8 | 0.5-2.0 | .43 | .43 | | |

 | 31-40 | 20-28|1.65-1.75| 0.6-2 |0.17-0.19| 1.0-3.5 | 0.0-0.5 | .43 | .43 | | |

 | 40-46 | 20-28|1.65-1.75| 0.6-2 |0.17-0.19| 1.0-3.5 | 0.0-0.5 | .43 | .43 | | |

 | 46-64 | 20-28|1.65-1.75| 0.6-2 |0.17-0.19| 1.0-3.5 | 0.0-0.5 | .43 | .43 | | |

 | | | | | | | | | | | |

 Urban land. | | | | | | | | | | | |

 | | | | | | | | | | | |

4198B: | | | | | | | | | | | |

 Floyd-----------------| 0-8 | 20-28|1.35-1.40| 0.6-2 |0.20-0.22| 1.0-3.5 | 5.0-6.0 | .24 | .24 | 5 | 6 | 48

 | 8-24 | 20-28|1.35-1.40| 0.6-2 |0.20-0.22| 1.0-3.5 | 2.0-5.0 | .24 | .24 | | |

 | 24-33 | 18-24|1.40-1.60| 0.6-2 |0.16-0.18| 0.4-2.3 | 1.0-2.0 | .32 | .32 | | |

 | 33-41 | 6-24|1.35-1.40| 2-6 |0.11-0.13| 0.0-2.3 | 0.5-1.0 | .32 | .32 | | |

 | 41-50 | 18-30|1.40-1.65| 0.6-2 |0.16-0.18| 0.4-4.2 | 0.0-1.0 | .32 | .32 | | |

 | 50-60 | 18-30|1.65-1.80| 0.6-2 |0.16-0.18| 0.4-4.2 | 0.0-0.5 | .32 | .32 | | |

 | | | | | | | | | | | |

 Urban land. | | | | | | | | | | | |

 | | | | | | | | | | | |

4226: | | | | | | | | | | | |

 Lawler, 24 to 40 | | | | | | | | | | | |

 inches to sand and | | | | | | | | | | | |

 gravel---------------| 0-8 | 18-27|1.40-1.45| 0.6-2 |0.20-0.22| 0.4-3.2 | 4.0-5.0 | .24 | .24 | 4 | 6 | 48

 | 8-15 | 18-27|1.40-1.45| 0.6-2 |0.20-0.22| 0.4-3.2 | 2.5-4.0 | .24 | .24 | | |

 | 15-21 | 18-27|1.40-1.45| 0.6-2 |0.20-0.22| 0.4-3.2 | 1.5-3.0 | .24 | .24 | | |

 | 21-32 | 20-28|1.45-1.60| 0.6-2 |0.16-0.18| 1.0-3.5 | 0.5-2.0 | .28 | .28 | | |

 | 32-37 | 20-28|1.45-1.60| 0.6-2 |0.16-0.18| 1.0-3.5 | 0.5-2.0 | .28 | .28 | | |

 | 37-60 | 2-8 |1.60-1.75| 20-101 |0.02-0.04| 0.0-0.0 | 0.0-0.5 | .10 | .10 | | |

 | | | | | | | | | | | |
462 Soil Survey of

Table 19.--Physical Properties of the Soils--Continued

________________________________________________________________________________________________________________________

 | | | | | | | |Erosion factors|Wind |Wind

 Map symbol | Depth | Clay | Moist | Permea- |Available| Linear | Organic |_______________|erodi-|erodi-

 and soil name | | | bulk | bility | water |extensi- | matter | | | |bility|bility

 | | | density | |capacity | bility | | Kw | Kf | T |group |index ________________________________________________________________________________________________________________________

 | In | Pct | g/cc | In/hr | In/in | Pct | Pct | | | | |

 | | | | | | | | | | | |

4226: | | | | | | | | | | | |

 Urban land. | | | | | | | | | | | |

 | | | | | | | | | | | |

4284: | | | | | | | | | | | |

 Flagler---------------| 0-8 | 12-18|1.50-1.55| 2-6 |0.12-0.14| 0.0-0.4 | 1.5-2.5 | .20 | .20 | 4 | 3 | 86

 | 8-15 | 12-18|1.50-1.55| 2-6 |0.12-0.14| 0.0-0.4 | 1.0-2.5 | .20 | .20 | | |

 | 15-22 | 12-18|1.50-1.55| 2-6 |0.12-0.14| 0.0-0.4 | 1.0-2.5 | .20 | .20 | | |

 | 22-33 | 10-15|1.55-1.60| 2-6 |0.11-0.13| 0.0-0.0 | 0.0-1.0 | .20 | .20 | | |

 | 33-65 | 2-8 |1.60-1.75| 20-101 |0.02-0.04| 0.0-0.0 | 0.0-0.5 | .20 | .20 | | |

 | | | | | | | | | | | |

 Urban land. | | | | | | | | | | | |

 | | | | | | | | | | | |

4284B: | | | | | | | | | | | |

 Flagler---------------| 0-8 | 12-18|1.50-1.55| 2-6 |0.12-0.14| 0.0-0.4 | 1.5-2.5 | .20 | .20 | 4 | 3 | 86

 | 8-15 | 12-18|1.50-1.55| 2-6 |0.12-0.14| 0.0-0.4 | 1.0-2.5 | .20 | .20 | | |

 | 15-22 | 12-18|1.50-1.55| 2-6 |0.12-0.14| 0.0-0.4 | 1.0-2.5 | .20 | .20 | | |

 | 22-33 | 10-15|1.55-1.60| 2-6 |0.11-0.13| 0.0-0.0 | 0.0-1.0 | .20 | .20 | | |

 | 33-65 | 2-8 |1.60-1.75| 20-101 |0.02-0.04| 0.0-0.0 | 0.0-0.5 | .20 | .20 | | |

 | | | | | | | | | | | |

 Urban land. | | | | | | | | | | | |

 | | | | | | | | | | | |

4377B: | | | | | | | | | | | |

 Dinsdale--------------| 0-7 | 25-29|1.25-1.30| 0.6-2 |0.21-0.23| 2.6-3.9 | 3.0-4.0 | .28 | .28 | 5 | 7 | 38

 | 7-15 | 25-29|1.25-1.30| 0.6-2 |0.21-0.23| 2.6-3.9 | 2.0-3.0 | .28 | .28 | | |

 | 15-21 | 30-34|1.30-1.35| 0.6-2 |0.18-0.20| 4.2-5.4 | 1.0-2.0 | .28 | .28 | | |

 | 21-36 | 30-34|1.30-1.35| 0.6-2 |0.18-0.20| 4.2-5.4 | 0.5-2.0 | .43 | .43 | | |

 | 36-50 | 20-28|1.65-1.75| 0.6-2 |0.17-0.19| 1.0-3.5 | 0.0-0.5 | .43 | .43 | | |

 | 50-80 | 20-28|1.65-1.75| 0.6-2 |0.17-0.19| 1.0-3.5 | 0.0-0.5 | .43 | .43 | | |

 | | | | | | | | | | | |

 Urban land. | | | | | | | | | | | |

 | | | | | | | | | | | |

4377C: | | | | | | | | | | | |

 Dinsdale--------------| 0-7 | 25-29|1.25-1.30| 0.6-2 |0.21-0.23| 2.6-3.9 | 3.0-4.0 | .28 | .28 | 5 | 7 | 38

 | 7-15 | 25-29|1.25-1.30| 0.6-2 |0.21-0.23| 2.6-3.9 | 2.0-3.0 | .28 | .28 | | |

 | 15-21 | 30-34|1.30-1.35| 0.6-2 |0.18-0.20| 4.2-4.8 | 1.0-2.0 | .28 | .28 | | |

 | 21-36 | 30-34|1.30-1.35| 0.6-2 |0.18-0.20| 4.2-4.8 | 0.5-2.0 | .43 | .43 | | |

 | 36-50 | 20-28|1.65-1.75| 0.6-2 |0.17-0.19| 1.0-2.3 | 0.0-0.5 | .43 | .43 | | |

 | 50-80 | 20-28|1.65-1.75| 0.6-2 |0.17-0.19| 1.0-2.3 | 0.0-0.5 | .43 | .43 | | |

 | | | | | | | | | | | |

 Urban land. | | | | | | | | | | | |

 | | | | | | | | | | | |

4382: | | | | | | | | | | | |

 Maxfield--------------| 0-7 | 27-35|1.35-1.40| 0.6-2 |0.21-0.23| 3.2-5.8 | 6.0-8.0 | .28 | .28 | 5 | 7 | 38

 | 7-17 | 27-35|1.35-1.40| 0.6-2 |0.21-0.23| 3.2-5.8 | 3.0-6.0 | .28 | .28 | | |

 | 17-23 | 25-34|1.40-1.50| 0.6-2 |0.18-0.20| 2.6-5.4 | 0.5-2.0 | .32 | .32 | | |

 | 23-32 | 25-34|1.40-1.50| 0.6-2 |0.18-0.20| 2.6-5.4 | 0.5-2.0 | .32 | .32 | | |

 | 32-45 | 20-26|1.65-1.75| 0.6-2 |0.17-0.19| 1.0-2.9 | 0.0-0.5 | .32 | .32 | | |

 | 45-66 | 20-26|1.65-1.75| 0.6-2 |0.17-0.19| 1.0-2.9 | 0.0-0.5 | .32 | .32 | | |

 | | | | | | | | | | | |

 Urban land. | | | | | | | | | | | |

 | | | | | | | | | | | |

4391B: | | | | | | | | | | | |

 Clyde-----------------| 0-8 | 25-32|1.35-1.40| 0.6-2 |0.21-0.23| 2.6-4.8 | 6.0-9.0 | .28 | .28 | 5 | 7 | 48

 | 8-17 | 28-32|1.35-1.40| 0.6-2 |0.21-0.23| 3.5-4.8 | 2.0-6.0 | .28 | .28 | | |

 | 17-23 | 28-32|1.35-1.40| 0.6-2 |0.21-0.23| 3.5-4.8 | 1.0-4.0 | .28 | .28 | | |

 | 23-41 | 22-30|1.45-1.65| 0.6-2 |0.18-0.20| 1.6-4.2 | 0.5-2.0 | .37 | .37 | | |

 | 41-44 | 10-15|1.60-1.70| 0.6-2 |0.11-0.13| 0.0-0.0 | 0.5-1.0 | .37 | .37 | | |

 | 44-54 | 20-28|1.65-1.75| 0.6-2 |0.17-0.19| 1.0-3.5 | 0.0-0.5 | .37 | .37 | | |

 | 54-66 | 20-28|1.65-1.75| 0.6-2 |0.17-0.19| 1.0-3.5 | 0.0-0.5 | .37 | .37 | | |

 | | | | | | | | | | | |
Black Hawk County, Iowa 463

Table 19.--Physical Properties of the Soils--Continued

________________________________________________________________________________________________________________________

 | | | | | | | |Erosion factors|Wind |Wind

 Map symbol | Depth | Clay | Moist | Permea- |Available| Linear | Organic |_______________|erodi-|erodi-

 and soil name | | | bulk | bility | water |extensi- | matter | | | |bility|bility

 | | | density | |capacity | bility | | Kw | Kf | T |group |index ________________________________________________________________________________________________________________________

 | In | Pct | g/cc | In/hr | In/in | Pct | Pct | | | | |

 | | | | | | | | | | | |

4391B: | | | | | | | | | | | |

 Floyd-----------------| 0-8 | 20-28|1.35-1.40| 0.6-2 |0.20-0.22| 1.0-3.5 | 5.0-6.0 | .24 | .24 | 5 | 7 | 48

 | 8-24 | 20-28|1.35-1.40| 0.6-2 |0.20-0.22| 1.0-3.5 | 2.0-5.0 | .24 | .24 | | |

 | 24-33 | 18-24|1.40-1.60| 0.6-2 |0.16-0.18| 0.4-2.3 | 1.0-2.0 | .32 | .32 | | |

 | 33-41 | 6-24|1.35-1.40| 2-6 |0.11-0.13| 0.0-2.3 | 0.5-1.0 | .32 | .32 | | |

 | 41-50 | 18-30|1.40-1.65| 0.6-2 |0.16-0.18| 0.4-4.2 | 0.0-1.0 | .32 | .32 | | |

 | 50-60 | 18-30|1.65-1.80| 0.6-2 |0.16-0.18| 0.4-4.2 | 0.0-0.5 | .32 | .32 | | |

 | | | | | | | | | | | |

 Urban land. | | | | | | | | | | | |

 | | | | | | | | | | | |

4398: | | | | | | | | | | | |

 Tripoli---------------| 0-9 | 28-32|1.40-1.45| 0.6-2 |0.19-0.21| 3.5-4.8 | 6.0-7.0 | .24 | .24 | 5 | 6 | 48

 | 9-18 | 28-32|1.40-1.45| 0.6-2 |0.19-0.21| 3.5-4.8 | 4.0-6.0 | .24 | .24 | | |

 | 18-24 | 22-28|1.45-1.70| 0.6-2 |0.17-0.19| 1.6-3.5 | 0.5-2.0 | .24 | .24 | | |

 | 24-38 | 22-28|1.45-1.70| 0.6-2 |0.17-0.19| 1.6-3.5 | 0.0-1.0 | .28 | .28 | | |

 | 38-66 | 20-28|1.65-1.75| 0.6-2 |0.17-0.19| 1.0-3.5 | 0.0-0.5 | .28 | .28 | | |

 | | | | | | | | | | | |

 Urban land. | | | | | | | | | | | |

 | | | | | | | | | | | |

4399: | | | | | | | | | | | |

 Readlyn---------------| 0-7 | 18-28|1.35-1.40| 0.6-2 |0.20-0.22| 0.4-3.5 | 4.5-5.5 | .24 | .24 | 5 | 6 | 48

 | 7-17 | 18-28|1.35-1.40| 0.6-2 |0.20-0.22| 0.4-3.5 | 3.0-4.5 | .24 | .24 | | |

 | 17-43 | 22-28|1.45-1.70| 0.6-2 |0.17-0.19| 1.6-3.5 | 0.0-1.0 | .32 | .32 | | |

 | 43-52 | 18-24|1.70-1.80| 0.6-2 |0.17-0.19| 0.4-2.3 | 0.0-0.5 | .32 | .32 | | |

 | 52-60 | 18-24|1.70-1.80| 0.6-2 |0.17-0.19| 0.4-2.3 | 0.0-0.5 | .32 | .32 | | |

 | | | | | | | | | | | |

 Urban land. | | | | | | | | | | | |

 | | | | | | | | | | | |

4408B: | | | | | | | | | | | |

 Olin------------------| 0-7 | 12-18|1.45-1.50| 2-6 |0.13-0.15| 0.0-0.4 | 1.5-2.5 | .20 | .20 | 5 | 3 | 86

 | 7-23 | 12-18|1.45-1.50| 2-6 |0.13-0.15| 0.0-0.4 | 1.0-2.0 | .20 | .20 | | |

 | 23-31 | 12-18|1.45-1.50| 2-6 |0.13-0.15| 0.0-0.4 | 0.0-1.0 | .20 | .20 | | |

 | 31-52 | 20-28|1.50-1.70| 0.6-2 |0.17-0.19| 1.0-3.5 | 0.0-0.5 | .37 | .37 | | |

 | 52-80 | 20-28|1.65-1.75| 0.6-2 |0.17-0.19| 1.0-3.5 | 0.0-0.5 | .37 | .37 | | |

 | | | | | | | | | | | |

 Urban land. | | | | | | | | | | | |

 | | | | | | | | | | | |

4408C: | | | | | | | | | | | |

 Olin------------------| 0-7 | 12-18|1.45-1.50| 2-6 |0.13-0.15| 0.0-0.4 | 1.5-2.5 | .20 | .20 | 5 | 3 | 86

 | 7-23 | 12-18|1.45-1.50| 2-6 |0.13-0.15| 0.0-0.4 | 1.0-2.0 | .20 | .20 | | |

 | 23-31 | 12-18|1.45-1.50| 2-6 |0.13-0.15| 0.0-0.4 | 0.0-1.0 | .20 | .20 | | |

 | 31-52 | 20-28|1.50-1.70| 0.6-2 |0.17-0.19| 1.0-3.5 | 0.0-0.5 | .37 | .37 | | |

 | 52-80 | 20-28|1.65-1.75| 0.6-2 |0.17-0.19| 1.0-3.5 | 0.0-0.5 | .37 | .37 | | |

 | | | | | | | | | | | |

 Urban land. | | | | | | | | | | | |

 | | | | | | | | | | | |

4426B: | | | | | | | | | | | |

 Aredale---------------| 0-7 | 18-26|1.40-1.45| 0.6-2 |0.20-0.22| 0.4-2.9 | 3.0-4.0 | .24 | .24 | 5 | 6 | 48

 | 7-19 | 18-26|1.40-1.45| 0.6-2 |0.20-0.22| 0.4-2.9 | 2.0-3.0 | .24 | .24 | | |

 | 19-33 | 18-28|1.45-1.65| 0.6-2 |0.17-0.19| 0.4-3.5 | 0.5-1.0 | .32 | .32 | | |

 | 33-55 | 8-15|1.60-1.70| 2-6 |0.11-0.13| 0.0-0.0 | 0.0-0.5 | .20 | .20 | | |

 | 55-70 | 18-24|1.70-1.80| 0.2-0.6 |0.17-0.19| 0.4-2.3 | 0.0-0.5 | .37 | .37 | | |

 | | | | | | | | | | | |

 Urban land. | | | | | | | | | | | |

 | | | | | | | | | | | |

4426C: | | | | | | | | | | | |

 Aredale---------------| 0-7 | 18-26|1.40-1.45| 0.6-2 |0.20-0.22| 0.4-2.9 | 3.0-4.0 | .24 | .24 | 5 | 6 | 48

 | 7-19 | 18-26|1.40-1.45| 0.6-2 |0.20-0.22| 0.4-2.9 | 2.0-3.0 | .24 | .24 | | |

 | 19-33 | 18-28|1.45-1.65| 0.6-2 |0.17-0.19| 0.4-3.5 | 0.5-1.0 | .32 | .32 | | |

 | 33-55 | 8-15|1.60-1.70| 2-6 |0.11-0.13| 0.0-0.0 | 0.0-0.5 | .20 | .20 | | |

 | 55-70 | 18-24|1.70-1.80| 0.2-0.6 |0.17-0.19| 0.4-2.3 | 0.0-0.5 | .37 | .37 | | |

 | | | | | | | | | | | |

 Urban land. | | | | | | | | | | | |

 | | | | | | | | | | | |
464 Soil Survey of

Table 19.--Physical Properties of the Soils--Continued

________________________________________________________________________________________________________________________

 | | | | | | | |Erosion factors|Wind |Wind

 Map symbol | Depth | Clay | Moist | Permea- |Available| Linear | Organic |_______________|erodi-|erodi-

 and soil name | | | bulk | bility | water |extensi- | matter | | | |bility|bility

 | | | density | |capacity | bility | | Kw | Kf | T |group |index ________________________________________________________________________________________________________________________

 | In | Pct | g/cc | In/hr | In/in | Pct | Pct | | | | |

 | | | | | | | | | | | |

4585: | | | | | | | | | | | |

 Spillville, | | | | | | | | | | | |

 occasionally flooded | 0-8 | 18-26|1.45-1.55| 0.6-2 |0.19-0.21| 0.4-2.9 | 4.0-5.0 | .24 | .24 | 5 | 6 | 48

 | 8-54 | 18-26|1.45-1.55| 0.6-2 |0.19-0.21| 0.4-2.9 | 1.0-4.0 | .24 | .24 | | |

 | 54-60 | 14-24|1.55-1.70| 0.6-6 |0.15-0.18| 0.0-2.3 | 1.0-2.0 | .28 | .28 | | |

 | | | | | | | | | | | |

 Coland, occasionally | | | | | | | | | | | |

 flooded--------------| 0-8 | 27-35|1.40-1.50| 0.6-2 |0.20-0.22| 3.2-5.8 | 5.0-7.0 | .24 | .24 | 5 | 6 | 48

 | 8-32 | 27-35|1.40-1.50| 0.6-2 |0.20-0.22| 3.2-5.8 | 3.0-6.0 | .24 | .24 | | |

 | 32-40 | 25-35|1.40-1.50| 0.6-2 |0.20-0.22| 2.6-5.8 | 1.0-4.0 | .24 | .24 | | |

 | 40-44 | 12-28|1.50-1.65| 0.6-6 |0.13-0.17| 0.0-3.5 | 0.0-2.0 | .28 | .28 | | |

 | 44-52 | 12-28|1.50-1.65| 0.6-6 |0.13-0.17| 0.0-3.5 | 0.0-2.0 | .28 | .28 | | |

 | 52-60 | 12-28|1.50-1.65| 0.6-6 |0.13-0.17| 0.0-3.5 | 0.0-1.0 | .28 | .28 | | |

 | | | | | | | | | | | |

 Urban land. | | | | | | | | | | | |

 | | | | | | | | | | | |

4761: | | | | | | | | | | | |

 Franklin--------------| 0-6 | 18-25|1.30-1.35| 0.6-2 |0.21-0.23| 0.4-2.6 | 3.0-4.0 | .28 | .28 | 5 | 6 | 48

 | 6-13 | 18-25|1.30-1.35| 0.6-2 |0.21-0.23| 0.4-2.6 | 0.5-1.0 | .28 | .28 | | |

 | 13-18 | 30-34|1.35-1.40| 0.6-2 |0.18-0.20| 4.2-5.4 | 0.5-1.0 | .37 | .37 | | |

 | 18-28 | 30-34|1.35-1.40| 0.6-2 |0.18-0.20| 4.2-5.4 | 0.0-0.5 | .37 | .37 | | |

 | 28-37 | 20-28|1.65-1.75| 0.6-2 |0.17-0.19| 1.0-3.5 | 0.0-0.5 | .37 | .37 | | |

 | 37-46 | 20-28|1.65-1.75| 0.6-2 |0.17-0.19| 1.0-3.5 | 0.0-0.5 | .37 | .37 | | |

 | 46-64 | 20-28|1.65-1.75| 0.6-2 |0.17-0.19| 1.0-3.5 | 0.0-0.5 | .37 | .37 | | |

 | 64-74 | 20-28|1.65-1.75| 0.6-2 |0.17-0.19| 1.0-3.5 | 0.0-0.5 | .37 | .37 | | |

 | | | | | | | | | | | |

 Urban land. | | | | | | | | | | | |

 | | | | | | | | | | | |

4771B: | | | | | | | | | | | |

 Waubeek---------------| 0-7 | 18-26|1.25-1.30| 0.6-2 |0.21-0.23| 0.4-2.9 | 2.5-3.5 | .28 | .28 | 5 | 6 | 48

 | 7-13 | 18-26|1.25-1.30| 0.6-2 |0.21-0.23| 0.4-2.9 | 0.5-1.0 | .28 | .28 | | |

 | 13-29 | 25-34|1.25-1.35| 0.6-2 |0.18-0.20| 2.6-5.4 | 0.5-1.0 | .37 | .37 | | |

 | 29-34 | 20-28|1.65-1.75| 0.6-2 |0.17-0.19| 1.0-3.5 | 0.0-0.5 | .37 | .37 | | |

 | 34-45 | 20-28|1.65-1.75| 0.6-2 |0.17-0.19| 1.0-3.5 | 0.0-0.5 | .37 | .37 | | |

 | 45-67 | 20-28|1.65-1.75| 0.6-2 |0.17-0.19| 1.0-3.5 | 0.0-0.5 | .37 | .37 | | |

 | | | | | | | | | | | |

 Urban land. | | | | | | | | | | | |

 | | | | | | | | | | | |

4771D: | | | | | | | | | | | |

 Waubeek---------------| 0-7 | 18-26|1.25-1.30| 0.6-2 |0.21-0.23| 0.4-2.9 | 2.5-3.5 | .28 | .28 | 5 | 6 | 48

 | 7-13 | 18-26|1.25-1.30| 0.6-2 |0.21-0.23| 0.4-2.9 | 0.5-1.0 | .28 | .28 | | |

 | 13-29 | 25-34|1.25-1.35| 0.6-2 |0.18-0.20| 2.6-5.4 | 0.5-1.0 | .37 | .37 | | |

 | 29-34 | 20-28|1.65-1.75| 0.6-2 |0.17-0.19| 1.0-3.5 | 0.0-0.5 | .37 | .37 | | |

 | 34-45 | 20-28|1.65-1.75| 0.6-2 |0.17-0.19| 1.0-3.5 | 0.0-0.5 | .37 | .37 | | |

 | 45-67 | 20-28|1.65-1.75| 0.6-2 |0.17-0.19| 1.0-3.5 | 0.0-0.5 | .37 | .37 | | |

 | | | | | | | | | | | |

 Urban land. | | | | | | | | | | | |

 | | | | | | | | | | | |

4798: | | | | | | | | | | | |

 Protivin--------------| 0-8 | 20-27|1.45-1.50| 0.6-2 |0.18-0.20| 1.0-3.2 | 6.0-7.0 | .28 | .28 | 5 | 6 | 48

 | 8-15 | 20-27|1.45-1.50| 0.6-2 |0.18-0.20| 1.0-3.2 | 4.0-7.0 | .28 | .28 | | |

 | 15-19 | 20-27|1.50-1.60| 0.2-0.6 |0.17-0.19| 1.0-3.2 | 2.0-6.0 | .37 | .37 | | |

 | 19-23 | 20-27|1.50-1.60| 0.2-0.6 |0.17-0.19| 1.0-3.2 | 1.0-2.0 | .37 | .37 | | |

 | 23-45 | 28-33|1.60-1.70| 0.2-0.6 |0.15-0.17| 3.5-5.1 | 0.0-0.5 | .37 | .37 | | |

 | 45-60 | 28-33|1.60-1.70| 0.2-0.6 |0.15-0.17| 3.5-5.1 | 0.0-0.5 | .37 | .37 | | |

 | | | | | | | | | | | |

 Urban land. | | | | | | | | | | | |

 | | | | | | | | | | | |
Black Hawk County, Iowa 465

Table 19.--Physical Properties of the Soils--Continued

________________________________________________________________________________________________________________________

 | | | | | | | |Erosion factors|Wind |Wind

 Map symbol | Depth | Clay | Moist | Permea- |Available| Linear | Organic |_______________|erodi-|erodi-

 and soil name | | | bulk | bility | water |extensi- | matter | | | |bility|bility

 | | | density | |capacity | bility | | Kw | Kf | T |group |index ________________________________________________________________________________________________________________________

 | In | Pct | g/cc | In/hr | In/in | Pct | Pct | | | | |

 | | | | | | | | | | | |

4911B: | | | | | | | | | | | |

 Colo------------------| 0-8 | 25-36|1.28-1.32| 0.6-2 |0.21-0.23| 2.6-6.1 | 5.0-7.0 | .28 | .28 | 5 | 7 | 38

 | 8-34 | 25-36|1.28-1.32| 0.6-2 |0.21-0.23| 2.6-6.1 | 3.0-6.0 | .28 | .28 | | |

 | 34-40 | 27-36|1.28-1.32| 0.6-2 |0.21-0.23| 3.2-6.1 | 2.0-4.0 | .28 | .28 | | |

 | 40-46 | 30-35|1.25-1.35| 0.6-2 |0.18-0.20| 4.2-5.8 | 1.0-3.0 | .28 | .28 | | |

 | 46-52 | 30-35|1.25-1.35| 0.6-2 |0.18-0.20| 4.2-5.8 | 0.5-2.5 | .28 | .28 | | |

 | 52-60 | 25-35|1.35-1.45| 0.6-2 |0.18-0.20| 2.6-5.8 | 0.0-2.0 | .32 | .32 | | |

 | | | | | | | | | | | |

 Ely-------------------| 0-8 | 25-30|1.30-1.35| 0.6-2 |0.21-0.23| 2.6-4.2 | 4.0-6.0 | .28 | .28 | 5 | 7 | 38

 | 8-24 | 25-30|1.30-1.35| 0.6-2 |0.21-0.23| 2.6-4.2 | 3.0-6.0 | .28 | .28 | | |

 | 24-32 | 25-30|1.30-1.35| 0.6-2 |0.21-0.23| 2.6-4.2 | 2.0-4.0 | .28 | .28 | | |

 | 32-47 | 28-35|1.30-1.40| 0.6-2 |0.18-0.20| 3.5-5.8 | 1.0-3.0 | .43 | .43 | | |

 | 47-58 | 20-30|1.40-1.45| 0.6-2 |0.18-0.20| 1.0-4.2 | 0.5-2.0 | .43 | .43 | | |

 | 58-80 | 20-30|1.40-1.45| 0.6-2 |0.18-0.20| 1.0-4.2 | 0.0-0.5 | .43 | .43 | | |

 | | | | | | | | | | | |

 Urban land. | | | | | | | | | | | |

 | | | | | | | | | | | |

4933: | | | | | | | | | | | |

 Sawmill, occasionally | | | | | | | | | | | |

 flooded--------------| 0-10 | 27-35|1.20-1.40| 0.6-2 |0.21-0.23| 3.2-5.8 | 5.0-7.0 | .28 | .28 | 5 | 7 | 38

 | 10-25 | 27-35|1.20-1.40| 0.6-2 |0.21-0.23| 3.2-5.8 | 3.0-6.0 | .28 | .28 | | |

 | 25-32 | 27-35|1.20-1.40| 0.6-2 |0.21-0.23| 3.2-5.8 | 2.0-4.0 | .28 | .28 | | |

 | 32-40 | 25-35|1.30-1.40| 0.6-2 |0.17-0.20| 2.6-5.8 | 0.5-2.0 | .28 | .28 | | |

 | 40-58 | 25-35|1.30-1.40| 0.6-2 |0.17-0.20| 2.6-5.8 | 0.5-2.0 | .28 | .28 | | |

 | 58-65 | 18-35|1.35-1.50| 0.6-2 |0.15-0.19| 0.4-5.8 | 0.0-1.0 | .28 | .28 | | |

 | | | | | | | | | | | |

 Urban land. | | | | | | | | | | | |

 | | | | | | | | | | | |

4946: | | | | | | | | | | | |

 Orthents, loamy. | | | | | | | | | | | |

 | | | | | | | | | | | |

 Urban land. | | | | | | | | | | | |

 | | | | | | | | | | | |

5010. | | | | | | | | | | | |

 Pits, sand and gravel | | | | | | | | | | | |

 | | | | | | | | | | | |

5030. | | | | | | | | | | | |

 Pits, limestone | | | | | | | | | | | |

 quarries | | | | | | | | | | | |

 | | | | | | | | | | | |

5040. | | | | | | | | | | | |

 Orthents, loamy | | | | | | | | | | | |

 | | | | | | | | | | | |

5053. | | | | | | | | | | | |

 Psammaquents, | | | | | | | | | | | |

 frequently flooded | | | | | | | | | | | |

 | | | | | | | | | | | |

5080. | | | | | | | | | | | |

 Orthents, sanitary | | | | | | | | | | | |

 landfill | | | | | | | | | | | |

 | | | | | | | | | | | |

AW. | | | | | | | | | | | |

 Animal waste | | | | | | | | | | | |

 | | | | | | | | | | | |

SL. | | | | | | | | | | | |

 Sewage lagoon | | | | | | | | | | | |

 | | | | | | | | | | | |

W. | | | | | | | | | | | |

 Water | | | | | | | | | | | |

 | | | | | | | | | | | | ________________________________________________________________________________________________________________________
466 Soil Survey of

Table 20.--Chemical Properties of the Soils

(Absence of an entry indicates that data were not estimated)

____________________________________________________________________________________

 | | | | | |

 Map symbol | Depth | Cation- |Effective| Soil |Calcium| Salinity

 and soil name | |exchange | cation- |reaction |carbon-|

 | |capacity |exchange | | ate |

 | | |capacity | | | ____________________________________________________________________________________

 | In |meq/100 g|meq/100 g| pH | Pct | mmhos/cm

 | | | | | |

7: | | | | | |

 Wiota----------------| 0-8 | 20-25 | --- | 5.6-7.3 | 0 | ---

 | 8-22 | 20-25 | --- | 5.6-7.3 | 0 | ---

 | 22-28 | 20-25 | --- | 5.6-7.3 | 0 | ---

 | 28-48 | 20-25 | --- | 5.6-6.5 | 0 | ---

 | 48-54 | 20-25 | --- | 6.1-6.5 | 0 | ---

 | 54-80 | 5.0-10 | --- | 5.1-6.5 | 0 | ---

 | | | | | |

41: | | | | | |

 Sparta---------------| 0-11 | 10-15 | --- | 5.1-7.3 | 0 | ---

 | 11-15 | 10-15 | --- | 5.1-7.3 | 0 | ---

 | 15-34 | 1.0-6.0 | --- | 5.1-6.5 | 0 | ---

 | 34-60 | 1.0-4.0 | --- | 5.1-6.0 | 0 | ---

 | | | | | |

41B: | | | | | |

 Sparta---------------| 0-11 | 10-15 | --- | 5.1-7.3 | 0 | ---

 | 11-15 | 10-15 | --- | 5.1-7.3 | 0 | ---

 | 15-34 | 1.0-6.0 | --- | 5.1-6.5 | 0 | ---

 | 34-60 | 1.0-4.0 | --- | 5.1-6.0 | 0 | ---

 | | | | | |

41C: | | | | | |

 Sparta---------------| 0-9 | 10-15 | --- | 5.1-7.3 | 0 | ---

 | 9-14 | 10-15 | --- | 5.1-7.3 | 0 | ---

 | 14-32 | 1.0-6.0 | --- | 5.1-6.5 | 0 | ---

 | 32-60 | 1.0-4.0 | --- | 5.1-6.0 | 0 | ---

 | | | | | |

41D: | | | | | |

 Sparta---------------| 0-9 | 10-15 | --- | 5.1-7.3 | 0 | ---

 | 9-14 | 10-15 | --- | 5.1-7.3 | 0 | ---

 | 14-30 | 1.0-6.0 | --- | 5.1-6.5 | 0 | ---

 | 30-60 | 1.0-4.0 | --- | 5.1-6.0 | 0 | ---

 | | | | | |

63B: | | | | | |

 Chelsea--------------| 0-8 | 5.0-10 | --- | 5.6-7.3 | 0 | ---

 | 8-36 | 5.0-10 | --- | 5.1-6.5 | 0 | ---

 | 36-70 | 5.0-10 | --- | 5.1-6.5 | 0 | ---

 | | | | | |

63C: | | | | | |

 Chelsea--------------| 0-8 | 5.0-10 | --- | 5.6-7.3 | 0 | ---

 | 8-36 | 5.0-10 | --- | 5.1-6.5 | 0 | ---

 | 36-70 | 5.0-10 | --- | 5.1-6.5 | 0 | ---

 | | | | | |

63D: | | | | | |

 Chelsea--------------| 0-8 | 5.0-10 | --- | 5.6-7.3 | 0 | ---

 | 8-32 | 5.0-10 | --- | 5.1-6.5 | 0 | ---

 | 32-70 | 5.0-10 | --- | 5.1-6.5 | 0 | ---

 | | | | | |

83B: | | | | | |

 Kenyon---------------| 0-8 | 20-25 | --- | 5.6-7.3 | 0 | ---

 | 8-14 | 20-25 | --- | 5.6-7.3 | 0 | ---

 | 14-19 | 20-25 | --- | 5.6-7.3 | 0 | ---

 | 19-47 | 20-25 | --- | 5.1-7.3 | 0-25 | ---

 | 47-54 | 20-25 | --- | 6.6-8.4 | 0-25 | ---

 | 54-76 | 20-25 | --- | 6.6-8.4 | 0-25 | ---

 | | | | | |
Black Hawk County, Iowa 467

Table 20.--Chemical Properties of the Soils--Continued

____________________________________________________________________________________

 | | | | | |

 Map symbol | Depth | Cation- |Effective| Soil |Calcium| Salinity

 and soil name | |exchange | cation- |reaction |carbon-|

 | |capacity |exchange | | ate |

 | | |capacity | | | ____________________________________________________________________________________

 | In |meq/100 g|meq/100 g| pH | Pct | mmhos/cm

 | | | | | |

83C: | | | | | |

 Kenyon---------------| 0-8 | 20-25 | --- | 5.6-7.3 | 0 | ---

 | 8-14 | 20-25 | --- | 5.6-7.3 | 0 | ---

 | 14-19 | 20-25 | --- | 5.6-7.3 | 0 | ---

 | 19-47 | 20-25 | --- | 5.1-7.3 | 0-25 | ---

 | 47-54 | 20-25 | --- | 6.6-8.4 | 0-25 | ---

 | 54-76 | 20-25 | --- | 6.6-8.4 | 0-25 | ---

 | | | | | |

83C2: | | | | | |

 Kenyon, moderately | | | | | |

 eroded--------------| 0-8 | 20-25 | --- | 5.6-7.3 | 0 | ---

 | 8-14 | 20-25 | --- | 5.6-7.3 | 0 | ---

 | 14-40 | 20-25 | --- | 5.1-7.3 | 0-25 | ---

 | 40-46 | 20-25 | --- | 6.6-8.4 | 0-25 | ---

 | 46-76 | 20-25 | --- | 6.6-8.4 | 0-25 | ---

 | | | | | |

83D2: | | | | | |

 Kenyon, moderately | | | | | |

 eroded--------------| 0-8 | 20-25 | --- | 5.6-7.3 | 0 | ---

 | 8-14 | 20-25 | --- | 5.6-7.3 | 0 | ---

 | 14-40 | 20-25 | --- | 5.1-7.3 | 0-25 | ---

 | 40-46 | 20-25 | --- | 6.6-8.4 | 0-25 | ---

 | 46-76 | 20-25 | --- | 6.6-8.4 | 0-25 | ---

 | | | | | |

84: | | | | | |

 Clyde----------------| 0-8 | 36-41 | --- | 6.6-7.3 | 0 | ---

 | 8-17 | 36-41 | --- | 6.6-7.3 | 0 | ---

 | 17-23 | 36-41 | --- | 6.6-7.3 | 0 | ---

 | 23-41 | 30-36 | --- | 6.1-7.3 | 0 | ---

 | 41-44 | 20-25 | --- | 6.1-7.3 | 0 | ---

 | 44-54 | 20-25 | --- | 6.6-8.4 | 0-25 | ---

 | 54-66 | 20-25 | --- | 6.6-8.4 | 0-25 | ---

 | | | | | |

88: | | | | | |

 Nevin----------------| 0-8 | 30-36 | --- | 5.6-7.3 | 0 | ---

 | 8-24 | 30-36 | --- | 5.6-7.3 | 0 | ---

 | 24-30 | 30-36 | --- | 5.6-7.3 | 0 | ---

 | 30-46 | 30-36 | --- | 6.1-6.5 | 0 | ---

 | 46-58 | 30-36 | --- | 6.1-6.5 | 0 | ---

 | 58-80 | 25-30 | --- | 5.6-6.0 | 0 | ---

 | | | | | |

133: | | | | | |

 Colo, occasionally | | | | | |

 flooded-------------| 0-8 | 36-41 | --- | 5.6-7.3 | 0 | ---

 | 8-34 | 36-41 | --- | 5.6-7.3 | 0 | ---

 | 34-40 | 36-41 | --- | 5.6-7.3 | 0 | ---

 | 40-46 | 36-41 | --- | 5.6-7.3 | 0 | ---

 | 46-52 | 36-41 | --- | 5.6-7.3 | 0 | ---

 | 52-60 | 30-36 | --- | 6.1-7.3 | 0 | ---

 | | | | | |

135: | | | | | |

 Coland, occasionally | | | | | |

 flooded-------------| 0-8 | 30-36 | --- | 6.1-7.3 | 0 | ---

 | 8-32 | 30-36 | --- | 6.1-7.3 | 0 | ---

 | 32-40 | 30-36 | --- | 6.1-7.3 | 0 | ---

 | 40-44 | 20-30 | --- | 6.1-7.8 | 0-20 | ---

 | 44-52 | 20-30 | --- | 6.1-7.8 | 0-20 | ---

 | 52-66 | 20-30 | --- | 6.1-7.8 | 0-20 | ---

 | | | | | |
468 Soil Survey of

Table 20.--Chemical Properties of the Soils--Continued

____________________________________________________________________________________

 | | | | | |

 Map symbol | Depth | Cation- |Effective| Soil |Calcium| Salinity

 and soil name | |exchange | cation- |reaction |carbon-|

 | |capacity |exchange | | ate |

 | | |capacity | | | ____________________________________________________________________________________

 | In |meq/100 g|meq/100 g| pH | Pct | mmhos/cm

 | | | | | |

159: | | | | | |

 Finchford------------| 0-8 | 10-15 | --- | 6.1-7.3 | 0 | ---

 | 8-18 | 10-15 | --- | 6.1-7.3 | 0 | ---

 | 18-30 | 5.0-10 | --- | 5.1-6.0 | 0 | ---

 | 30-55 | 5.0-10 | --- | 5.6-6.5 | 0 | ---

 | 55-70 | 5.0-10 | --- | 5.6-6.5 | 0 | ---

 | 70-80 | 5.0-10 | --- | 5.6-6.5 | 0 | ---

 | | | | | |

159C: | | | | | |

 Finchford------------| 0-8 | 10-15 | --- | 6.1-7.3 | 0 | ---

 | 8-15 | 10-15 | --- | 6.1-7.3 | 0 | ---

 | 15-26 | 5.0-10 | --- | 5.1-6.0 | 0 | ---

 | 26-50 | 5.0-10 | --- | 5.6-6.5 | 0 | ---

 | 50-65 | 5.0-10 | --- | 5.6-6.5 | 0 | ---

 | 65-80 | 5.0-10 | --- | 5.6-6.5 | 0 | ---

 | | | | | |

171B: | | | | | |

 Bassett--------------| 0-8 | 20-25 | --- | 5.1-7.3 | 0 | ---

 | 8-10 | 20-25 | --- | 5.1-7.3 | 0 | ---

 | 10-14 | 20-25 | --- | 5.1-7.3 | 0 | ---

 | 14-43 | 20-25 | --- | 4.5-7.3 | 0-25 | ---

 | 43-59 | 20-25 | --- | 4.5-7.3 | 0-25 | ---

 | 59-73 | 20-25 | --- | 5.1-8.4 | 0-25 | ---

 | | | | | |

175: | | | | | |

 Dickinson------------| 0-9 | 15-20 | --- | 5.6-7.3 | 0 | ---

 | 9-18 | 15-20 | --- | 5.1-6.5 | 0 | ---

 | 18-30 | 5.0-10 | --- | 5.1-6.5 | 0 | ---

 | 30-36 | 5.0-10 | --- | 5.1-6.5 | 0 | ---

 | 36-60 | 5.0-10 | --- | 5.6-6.5 | 0 | ---

 | | | | | |

175B: | | | | | |

 Dickinson------------| 0-9 | 15-20 | --- | 5.6-7.3 | 0 | ---

 | 9-18 | 15-20 | --- | 5.1-6.5 | 0 | ---

 | 18-30 | 5.0-10 | --- | 5.1-6.5 | 0 | ---

 | 30-36 | 5.0-10 | --- | 5.1-6.5 | 0 | ---

 | 36-60 | 5.0-10 | --- | 5.6-6.5 | 0 | ---

 | | | | | |

177: | | | | | |

 Saude----------------| 0-7 | 20-25 | --- | 5.6-7.3 | 0 | ---

 | 7-13 | 20-25 | --- | 5.6-7.3 | 0 | ---

 | 13-16 | 15-20 | --- | 5.1-6.0 | 0 | ---

 | 16-24 | 15-20 | --- | 5.1-6.0 | 0 | ---

 | 24-28 | 15-20 | --- | 5.1-6.0 | 0 | ---

 | 28-36 | 5.0-10 | --- | 5.1-6.5 | 0 | ---

 | 36-60 | 5.0-10 | --- | 5.1-6.5 | 0 | ---

 | | | | | |

177B: | | | | | |

 Saude----------------| 0-7 | 20-25 | --- | 5.6-7.3 | 0 | ---

 | 7-13 | 20-25 | --- | 5.6-7.3 | 0 | ---

 | 13-16 | 15-20 | --- | 5.1-6.0 | 0 | ---

 | 16-24 | 15-20 | --- | 5.1-6.0 | 0 | ---

 | 24-28 | 15-20 | --- | 5.1-6.0 | 0 | ---

 | 28-36 | 5.0-10 | --- | 5.1-6.5 | 0 | ---

 | 36-60 | 5.0-10 | --- | 5.1-6.5 | 0 | ---

 | | | | | |
Black Hawk County, Iowa 469

Table 20.--Chemical Properties of the Soils--Continued

____________________________________________________________________________________

 | | | | | |

 Map symbol | Depth | Cation- |Effective| Soil |Calcium| Salinity

 and soil name | |exchange | cation- |reaction |carbon-|

 | |capacity |exchange | | ate |

 | | |capacity | | | ____________________________________________________________________________________

 | In |meq/100 g|meq/100 g| pH | Pct | mmhos/cm

 | | | | | |

178: | | | | | |

 Waukee---------------| 0-8 | 20-25 | --- | 5.6-6.5 | 0 | ---

 | 8-16 | 20-25 | --- | 5.6-6.5 | 0 | ---

 | 16-20 | 20-25 | --- | 5.1-6.0 | 0 | ---

 | 20-35 | 20-25 | --- | 5.1-6.0 | 0 | ---

 | 35-44 | 5.0-10 | --- | 5.6-6.5 | 0 | ---

 | 44-66 | 5.0-10 | --- | 5.6-6.5 | 0 | ---

 | | | | | |

178B: | | | | | |

 Waukee---------------| 0-8 | 20-25 | --- | 5.6-6.5 | 0 | ---

 | 8-16 | 20-25 | --- | 5.6-6.5 | 0 | ---

 | 16-20 | 20-25 | --- | 5.1-6.0 | 0 | ---

 | 20-35 | 20-25 | --- | 5.1-6.0 | 0 | ---

 | 35-44 | 5.0-10 | --- | 5.6-6.5 | 0 | ---

 | 44-66 | 5.0-10 | --- | 5.6-6.5 | 0 | ---

 | | | | | |

184: | | | | | |

 Klinger--------------| 0-9 | 30-36 | --- | 5.1-7.3 | 0 | ---

 | 9-13 | 30-36 | --- | 5.1-7.3 | 0 | ---

 | 13-19 | 30-36 | --- | 5.1-7.3 | 0 | ---

 | 19-31 | 25-30 | --- | 5.1-6.5 | 0 | ---

 | 31-40 | 15-20 | --- | 5.1-7.8 | 0-25 | ---

 | 40-46 | 15-20 | --- | 5.1-7.8 | 0-25 | ---

 | 46-64 | 15-20 | --- | 5.1-7.8 | 0-25 | ---

 | | | | | |

198B: | | | | | |

 Floyd----------------| 0-8 | 25-30 | --- | 6.1-7.3 | 0 | ---

 | 8-24 | 25-30 | --- | 6.1-7.3 | 0 | ---

 | 24-33 | 25-30 | --- | 6.1-7.3 | 0 | ---

 | 33-41 | 5.0-10 | --- | 6.6-7.3 | 0 | ---

 | 41-50 | 25-30 | --- | 6.6-8.4 | 0-25 | ---

 | 50-60 | 25-30 | --- | 6.6-8.4 | 0-25 | ---

 | | | | | |

213B: | | | | | |

 Rockton, 30 to 40 | | | | | |

 inches to limestone | 0-10 | 20-25 | --- | 5.1-6.5 | 0 | ---

 | 10-15 | 20-25 | --- | 5.1-6.5 | 0 | ---

 | 15-21 | 20-25 | --- | 5.1-6.5 | 0 | ---

 | 21-30 | 20-25 | --- | 5.1-6.5 | 0 | ---

 | 30-35 | 30-36 | --- | 5.6-7.3 | 0 | ---

 | 35-80 | --- | --- | --- | --- | ---

 | | | | | |

221: | | | | | |

 Klossner-------------| 0-10 | 150-200 | --- | 5.1-7.4 | 0 | 0.0-2.0

 | 10-26 | 150-200 | --- | 5.1-7.4 | 0 | 0.0-2.0

 | 26-36 | 10-25 | --- | 5.6-7.4 | 0 | ---

 | 36-48 | 10-25 | --- | 5.6-7.4 | 0 | ---

 | 48-65 | 2.0-14 | --- | 6.1-7.4 | 0-20 | ---

 | 65-80 | 2.0-14 | --- | 6.1-7.4 | 0-20 | ---

 | | | | | |

284: | | | | | |

 Flagler--------------| 0-8 | 15-20 | --- | 5.6-7.3 | 0 | ---

 | 8-15 | 15-20 | --- | 5.6-7.3 | 0 | ---

 | 15-22 | 15-20 | --- | 5.6-7.3 | 0 | ---

 | 22-33 | 10-15 | --- | 5.1-6.5 | 0 | ---

 | 33-65 | 5.0-10 | --- | 5.1-7.3 | 0 | ---

 | | | | | |
470 Soil Survey of

Table 20.--Chemical Properties of the Soils--Continued

____________________________________________________________________________________

 | | | | | |

 Map symbol | Depth | Cation- |Effective| Soil |Calcium| Salinity

 and soil name | |exchange | cation- |reaction |carbon-|

 | |capacity |exchange | | ate |

 | | |capacity | | | ____________________________________________________________________________________

 | In |meq/100 g|meq/100 g| pH | Pct | mmhos/cm

 | | | | | |

284B: | | | | | |

 Flagler--------------| 0-8 | 15-20 | --- | 5.6-7.3 | 0 | ---

 | 8-15 | 15-20 | --- | 5.6-7.3 | 0 | ---

 | 15-22 | 15-20 | --- | 5.6-7.3 | 0 | ---

 | 22-33 | 10-15 | --- | 5.1-6.5 | 0 | ---

 | 33-65 | 5.0-10 | --- | 5.1-7.3 | 0 | ---

 | | | | | |

290: | | | | | |

 Dells----------------| 0-7 | 20-25 | --- | 5.6-7.3 | 0 | ---

 | 7-16 | 4.0-25 | --- | 5.6-7.3 | 0 | ---

 | 16-28 | 0.0-7.0 | --- | 5.1-7.3 | 0 | ---

 | 28-33 | 0.0-7.0 | --- | 5.1-7.3 | 0 | ---

 | 33-60 | 0.0-7.0 | --- | 5.1-7.3 | 0 | ---

 | | | | | |

354. | | | | | |

 Aquolls, ponded | | | | | |

 | | | | | |

377B: | | | | | |

 Dinsdale-------------| 0-7 | 25-30 | --- | 5.1-7.3 | 0 | ---

 | 7-15 | 25-30 | --- | 5.1-7.3 | 0 | ---

 | 15-21 | 25-30 | --- | 5.1-7.3 | 0 | ---

 | 21-36 | 25-30 | --- | 5.1-7.3 | 0 | ---

 | 36-50 | 25-30 | --- | 5.6-8.4 | 0-25 | ---

 | 50-80 | 25-30 | --- | 5.6-8.4 | 0-25 | ---

 | | | | | |

377C: | | | | | |

 Dinsdale-------------| 0-7 | 25-30 | --- | 5.1-7.3 | 0 | ---

 | 7-15 | 25-30 | --- | 5.1-7.3 | 0 | ---

 | 15-21 | 25-30 | --- | 5.1-7.3 | 0 | ---

 | 21-36 | 25-30 | --- | 5.1-7.3 | 0 | ---

 | 36-50 | 25-30 | --- | 5.6-8.4 | 0-25 | ---

 | 50-80 | 25-30 | --- | 5.6-8.4 | 0-25 | ---

 | | | | | |

377C2: | | | | | |

 Dinsdale, moderately | | | | | |

 eroded--------------| 0-8 | 25-30 | --- | 5.1-7.3 | 0 | ---

 | 8-25 | 25-30 | --- | 5.1-7.3 | 0 | ---

 | 25-40 | 25-30 | --- | 5.6-8.4 | 0-25 | ---

 | 40-80 | 25-30 | --- | 5.6-8.4 | 0-25 | ---

 | | | | | |

382: | | | | | |

 Maxfield-------------| 0-7 | 36-41 | --- | 6.6-7.3 | 0 | ---

 | 7-17 | 36-41 | --- | 6.6-7.3 | 0 | ---

 | 17-23 | 30-36 | --- | 6.1-7.3 | 0 | ---

 | 23-32 | 30-36 | --- | 6.1-7.3 | 0 | ---

 | 32-45 | 25-30 | --- | 6.1-7.8 | 0-25 | ---

 | 45-66 | 25-30 | --- | 6.1-7.8 | 0-25 | ---

 | | | | | |

391B: | | | | | |

 Clyde----------------| 0-8 | 36-41 | --- | 6.6-7.3 | 0 | ---

 | 8-17 | 36-41 | --- | 6.6-7.3 | 0 | ---

 | 17-23 | 36-41 | --- | 6.6-7.3 | 0 | ---

 | 23-41 | 30-36 | --- | 6.1-7.3 | 0 | ---

 | 41-44 | 20-25 | --- | 6.1-7.3 | 0 | ---

 | 44-54 | 20-25 | --- | 6.6-8.4 | 0-25 | ---

 | 54-66 | 20-25 | --- | 6.6-8.4 | 0-25 | ---

 | | | | | |
Black Hawk County, Iowa 471

Table 20.--Chemical Properties of the Soils--Continued

____________________________________________________________________________________

 | | | | | |

 Map symbol | Depth | Cation- |Effective| Soil |Calcium| Salinity

 and soil name | |exchange | cation- |reaction |carbon-|

 | |capacity |exchange | | ate |

 | | |capacity | | | ____________________________________________________________________________________

 | In |meq/100 g|meq/100 g| pH | Pct | mmhos/cm

 | | | | | |

391B: | | | | | |

 Floyd----------------| 0-8 | 25-30 | --- | 6.1-7.3 | 0 | ---

 | 8-24 | 25-30 | --- | 6.1-7.3 | 0 | ---

 | 24-33 | 25-30 | --- | 6.1-7.3 | 0 | ---

 | 33-41 | 5.0-10 | --- | 6.6-7.3 | 0 | ---

 | 41-50 | 25-30 | --- | 6.6-8.4 | 0-25 | ---

 | 50-60 | 25-30 | --- | 6.6-8.4 | 0-25 | ---

 | | | | | |

395B: | | | | | |

 Marquis--------------| 0-8 | 20-25 | --- | 5.6-7.3 | 0 | ---

 | 8-19 | 20-25 | --- | 5.6-7.3 | 0 | ---

 | 19-24 | 20-25 | --- | 5.1-7.3 | 0 | ---

 | 24-54 | 20-25 | --- | 6.6-8.4 | 0-25 | ---

 | 54-80 | 20-25 | --- | 6.6-8.4 | 0-25 | ---

 | | | | | |

398: | | | | | |

 Tripoli--------------| 0-9 | 36-41 | --- | 6.6-7.3 | 0 | ---

 | 9-18 | 36-41 | --- | 6.6-7.3 | 0 | ---

 | 18-24 | 30-36 | --- | 6.6-7.8 | 0 | ---

 | 24-38 | 30-36 | --- | 6.6-7.8 | 0-25 | ---

 | 38-66 | 25-30 | --- | 7.4-8.4 | 0-25 | ---

 | | | | | |

399: | | | | | |

 Readlyn--------------| 0-7 | 25-30 | --- | 5.1-7.3 | 0 | ---

 | 7-17 | 25-30 | --- | 5.1-7.3 | 0 | ---

 | 17-43 | 25-30 | --- | 5.1-6.5 | 0-25 | ---

 | 43-52 | 25-30 | --- | 6.6-8.4 | 0-25 | ---

 | 52-60 | 25-30 | --- | 6.6-8.4 | 0-25 | ---

 | | | | | |

408B: | | | | | |

 Olin-----------------| 0-7 | 15-20 | --- | 5.6-7.3 | 0 | ---

 | 7-23 | 15-20 | --- | 5.6-7.3 | 0 | ---

 | 23-31 | 15-20 | --- | 5.6-7.3 | 0 | ---

 | 31-52 | 15-20 | --- | 5.1-6.0 | 0-25 | ---

 | 52-80 | 15-20 | --- | 6.1-8.4 | 0-25 | ---

 | | | | | |

408C: | | | | | |

 Olin-----------------| 0-7 | 15-20 | --- | 5.6-7.3 | 0 | ---

 | 7-23 | 15-20 | --- | 5.6-7.3 | 0 | ---

 | 23-31 | 15-20 | --- | 5.6-7.3 | 0 | ---

 | 31-52 | 15-20 | --- | 5.1-6.0 | 0-25 | ---

 | 52-80 | 15-20 | --- | 6.1-8.4 | 0-25 | ---

 | | | | | |

412C: | | | | | |

 Emeline--------------| 0-9 | 20-25 | --- | 6.1-8.4 | 0-25 | ---

 | 9-80 | --- | --- | --- | --- | ---

 | | | | | |

426B: | | | | | |

 Aredale--------------| 0-7 | 20-25 | --- | 5.6-7.3 | 0 | ---

 | 7-19 | 20-25 | --- | 5.6-7.3 | 0 | ---

 | 19-33 | 20-25 | --- | 5.1-6.0 | 0 | ---

 | 33-55 | 20-25 | --- | 5.1-6.0 | 0 | ---

 | 55-70 | 20-25 | --- | 5.6-7.3 | 0-25 | ---

 | | | | | |

426C: | | | | | |

 Aredale--------------| 0-7 | 20-25 | --- | 5.6-7.3 | 0 | ---

 | 7-19 | 20-25 | --- | 5.6-7.3 | 0 | ---

 | 19-33 | 20-25 | --- | 5.1-6.0 | 0 | ---

 | 33-55 | 20-25 | --- | 5.1-6.0 | 0 | ---

 | 55-70 | 20-25 | --- | 5.6-7.3 | 0-25 | ---

 | | | | | |
472 Soil Survey of

Table 20.--Chemical Properties of the Soils--Continued

____________________________________________________________________________________

 | | | | | |

 Map symbol | Depth | Cation- |Effective| Soil |Calcium| Salinity

 and soil name | |exchange | cation- |reaction |carbon-|

 | |capacity |exchange | | ate |

 | | |capacity | | | ____________________________________________________________________________________

 | In |meq/100 g|meq/100 g| pH | Pct | mmhos/cm

 | | | | | |

426C2: | | | | | |

 Aredale, moderately | | | | | |

 eroded--------------| 0-8 | 20-25 | --- | 5.6-7.3 | 0 | ---

 | 8-32 | 20-25 | --- | 5.1-6.0 | 0 | ---

 | 32-50 | 20-25 | --- | 5.1-6.0 | 0 | ---

 | 50-70 | 20-25 | --- | 5.6-7.3 | 0-25 | ---

 | | | | | |

468B: | | | | | |

 Dunkerton------------| 0-9 | 15-20 | --- | 5.6-7.3 | 0 | ---

 | 9-15 | 15-20 | --- | 5.6-7.3 | 0 | ---

 | 15-25 | 15-20 | --- | 5.1-7.3 | 0 | ---

 | 25-49 | 15-20 | --- | 6.1-8.4 | 0-25 | ---

 | 49-80 | 15-20 | --- | 6.1-8.4 | 0-25 | ---

 | | | | | |

468C: | | | | | |

 Dunkerton------------| 0-9 | 15-20 | --- | 5.6-7.3 | 0 | ---

 | 9-15 | 15-20 | --- | 5.6-7.3 | 0 | ---

 | 15-25 | 15-20 | --- | 5.1-7.3 | 0 | ---

 | 25-49 | 15-20 | --- | 6.1-8.4 | 0-25 | ---

 | 49-80 | 15-20 | --- | 6.1-8.4 | 0-25 | ---

 | | | | | |

471: | | | | | |

 Oran-----------------| 0-8 | 20-25 | --- | 5.1-7.3 | 0 | ---

 | 8-14 | 20-25 | --- | 5.1-7.3 | 0 | ---

 | 14-19 | 20-25 | --- | 5.1-7.3 | 0 | ---

 | 19-42 | 20-25 | --- | 5.1-6.5 | 0-25 | ---

 | 42-80 | 20-25 | --- | 7.4-7.8 | 0-25 | ---

 | | | | | |

485: | | | | | |

 Spillville, | | | | | |

 occasionally flooded| 0-8 | 20-25 | --- | 5.6-7.3 | 0 | ---

 | 8-54 | 20-25 | --- | 5.6-7.3 | 0 | ---

 | 54-60 | 20-25 | --- | 5.6-7.3 | 0 | ---

 | | | | | |

585: | | | | | |

 Spillville, | | | | | |

 occasionally flooded| 0-8 | 20-25 | --- | 5.6-7.3 | 0 | ---

 | 8-54 | 20-25 | --- | 5.6-7.3 | 0 | ---

 | 54-60 | 20-25 | --- | 5.6-7.3 | 0 | ---

 | | | | | |

 Coland, occasionally | | | | | |

 flooded-------------| 0-8 | 30-36 | --- | 6.1-7.3 | 0 | ---

 | 8-32 | 30-36 | --- | 6.1-7.3 | 0 | ---

 | 32-40 | 30-36 | --- | 6.1-7.3 | 0 | ---

 | 40-44 | 20-30 | --- | 6.1-7.8 | 0-20 | ---

 | 44-52 | 20-30 | --- | 6.1-7.8 | 0-20 | ---

 | 52-60 | 20-30 | --- | 6.1-7.8 | 0-20 | ---

 | | | | | |

626: | | | | | |

 Hayfield, 24 to 40 | | | | | |

 inches to sand and | | | | | |

 gravel--------------| 0-8 | 20-25 | --- | 5.6-7.3 | 0 | ---

 | 8-13 | 15-20 | --- | 5.6-7.3 | 0 | ---

 | 13-29 | 15-20 | --- | 5.1-6.0 | 0 | ---

 | 29-80 | 5.0-10 | --- | 5.6-7.8 | 0 | ---

 | | | | | |
Black Hawk County, Iowa 473

Table 20.--Chemical Properties of the Soils--Continued

____________________________________________________________________________________

 | | | | | |

 Map symbol | Depth | Cation- |Effective| Soil |Calcium| Salinity

 and soil name | |exchange | cation- |reaction |carbon-|

 | |capacity |exchange | | ate |

 | | |capacity | | | ____________________________________________________________________________________

 | In |meq/100 g|meq/100 g| pH | Pct | mmhos/cm

 | | | | | |

761: | | | | | |

 Franklin-------------| 0-6 | 20-25 | --- | 5.1-7.3 | 0 | ---

 | 6-13 | 20-25 | --- | 5.1-7.3 | 0 | ---

 | 13-18 | 20-25 | --- | 5.1-6.0 | 0 | ---

 | 18-28 | 20-25 | --- | 5.1-6.0 | 0 | ---

 | 28-37 | 20-25 | --- | 5.1-8.4 | 0-25 | ---

 | 37-46 | 20-25 | --- | 5.1-8.4 | 0-25 | ---

 | 46-64 | 20-25 | --- | 5.1-8.4 | 0-25 | ---

 | 64-74 | 20-25 | --- | 5.1-8.4 | 0-25 | ---

 | | | | | |

771B: | | | | | |

 Waubeek--------------| 0-7 | 20-25 | --- | 5.6-7.3 | 0 | ---

 | 7-13 | 20-25 | --- | 5.6-7.3 | 0 | ---

 | 13-29 | 20-25 | --- | 5.1-6.0 | 0 | ---

 | 29-34 | 20-25 | --- | 5.1-7.3 | 0-25 | ---

 | 34-45 | 20-25 | --- | 5.1-7.3 | 0-25 | ---

 | 45-67 | 20-25 | --- | 5.1-7.3 | 0-25 | ---

 | | | | | |

775B: | | | | | |

 Billett--------------| 0-8 | 15-20 | --- | 5.1-7.3 | 0 | ---

 | 8-13 | 4.0-13 | --- | 5.1-6.5 | 0 | ---

 | 13-28 | 2.0-12 | --- | 5.1-6.5 | 0 | ---

 | 28-41 | 2.0-12 | --- | 5.6-7.3 | 0 | ---

 | 41-47 | 2.0-12 | --- | 5.6-7.3 | 0 | ---

 | 47-52 | 1.0-7.0 | --- | 5.1-7.8 | 0-20 | ---

 | 52-60 | 1.0-7.0 | --- | 5.1-7.8 | 0-20 | ---

 | | | | | |

776C: | | | | | |

 Lilah----------------| 0-6 | 10-15 | --- | 5.1-6.0 | 0 | ---

 | 6-15 | 10-15 | 10-15 | 5.1-6.0 | 0 | ---

 | 15-28 | 5.0-10 | 5.0-10 | 5.1-6.0 | 0 | ---

 | 28-39 | 5.0-10 | 5.0-10 | 5.1-6.0 | 0 | ---

 | 39-60 | 5.0-10 | 5.0-10 | 5.1-6.0 | 0 | ---

 | | | | | |

777: | | | | | |

 Wapsie---------------| 0-8 | 20-25 | --- | 5.6-7.3 | 0 | ---

 | 8-13 | 15-20 | --- | 5.6-7.3 | 0 | ---

 | 13-17 | 5.0-10 | --- | 5.6-6.0 | 0 | ---

 | 17-27 | 5.0-10 | --- | 5.6-6.0 | 0 | ---

 | 27-29 | 5.0-10 | --- | 5.6-6.0 | 0 | ---

 | 29-38 | 5.0-10 | --- | 5.1-7.3 | 0 | ---

 | 38-60 | 5.0-10 | --- | 5.1-7.3 | 0 | ---

 | | | | | |

781B: | | | | | |

 Lourdes--------------| 0-8 | 20-25 | --- | 5.6-7.3 | 0 | ---

 | 8-11 | 20-25 | 20-25 | 4.5-5.5 | 0 | ---

 | 11-15 | 20-25 | 20-25 | 4.5-5.5 | 0 | ---

 | 15-44 | 20-25 | --- | 4.5-6.5 | 0-25 | ---

 | 44-51 | 20-25 | --- | 7.4-7.8 | 0-25 | ---

 | 51-76 | 20-25 | --- | 7.4-7.8 | 0-25 | ---

 | | | | | |

781C2: | | | | | |

 Lourdes, moderately | | | | | |

 eroded--------------| 0-8 | 20-25 | --- | 5.6-7.3 | 0 | ---

 | 8-14 | 20-25 | --- | 4.5-7.3 | 0 | ---

 | 14-42 | 20-25 | --- | 7.4-7.8 | 0-25 | ---

 | 42-47 | 20-25 | --- | 7.4-7.8 | 0-25 | ---

 | 47-76 | 20-25 | --- | 7.4-7.8 | 0-25 | ---

 | | | | | |
474 Soil Survey of

Table 20.--Chemical Properties of the Soils--Continued

____________________________________________________________________________________

 | | | | | |

 Map symbol | Depth | Cation- |Effective| Soil |Calcium| Salinity

 and soil name | |exchange | cation- |reaction |carbon-|

 | |capacity |exchange | | ate |

 | | |capacity | | | ____________________________________________________________________________________

 | In |meq/100 g|meq/100 g| pH | Pct | mmhos/cm

 | | | | | |

782B: | | | | | |

 Donnan---------------| 0-8 | 20-25 | --- | 5.1-7.3 | 0 | ---

 | 8-13 | 20-25 | 20-25 | 5.1-7.3 | 0 | ---

 | 13-18 | 20-25 | 20-25 | 5.1-7.3 | 0 | ---

 | 18-24 | 30-36 | --- | 5.1-5.5 | 0 | ---

 | 24-48 | 20-25 | --- | 5.1-6.5 | 0 | ---

 | 48-60 | 20-25 | --- | 5.1-6.5 | 0 | ---

 | | | | | |

798: | | | | | |

 Protivin-------------| 0-8 | 25-30 | --- | 5.1-7.3 | 0 | ---

 | 8-15 | 25-30 | --- | 5.1-7.3 | 0 | ---

 | 15-19 | 25-30 | --- | 5.1-6.0 | 0 | ---

 | 19-23 | 25-30 | --- | 5.1-6.0 | 0 | ---

 | 23-45 | 25-30 | --- | 6.1-7.8 | 0-25 | ---

 | 45-60 | 25-30 | --- | 6.1-7.8 | 0-25 | ---

 | | | | | |

809B: | | | | | |

 Bertram--------------| 0-8 | 15-20 | --- | 6.1-7.3 | 0 | ---

 | 8-17 | 15-20 | --- | 6.1-7.3 | 0 | ---

 | 17-30 | 15-20 | --- | 5.1-6.0 | 0 | ---

 | 30-34 | 20-25 | --- | 5.6-7.8 | 0-20 | ---

 | 34-36 | 20-25 | --- | 5.6-7.8 | 0-20 | ---

 | 36-80 | --- | --- | --- | --- | ---

 | | | | | |

877B: | | | | | |

 Dinsmore-------------| 0-8 | 25-30 | --- | 5.1-7.3 | 0 | ---

 | 8-16 | 25-30 | --- | 5.1-7.3 | 0 | ---

 | 16-48 | 25-30 | --- | 5.1-6.0 | 0 | ---

 | 48-80 | 25-30 | --- | 5.6-8.4 | 0-25 | ---

 | | | | | |

884: | | | | | |

 Klingmore------------| 0-8 | 30-36 | --- | 5.1-7.3 | 0 | ---

 | 8-19 | 30-36 | --- | 5.1-7.3 | 0 | ---

 | 19-56 | 30-36 | --- | 5.1-6.5 | 0 | ---

 | 56-80 | 25-30 | --- | 5.6-8.4 | 0-25 | ---

 | | | | | |

911B: | | | | | |

 Colo-----------------| 0-8 | 36-41 | --- | 5.6-7.3 | 0 | ---

 | 8-34 | 36-41 | --- | 5.6-7.3 | 0 | ---

 | 34-40 | 36-41 | --- | 5.6-7.3 | 0 | ---

 | 40-46 | 36-41 | --- | 5.6-7.3 | 0 | ---

 | 46-52 | 36-41 | --- | 5.6-7.3 | 0 | ---

 | 52-60 | 30-36 | --- | 6.1-7.3 | 0 | ---

 | | | | | |

 Ely------------------| 0-8 | 30-36 | --- | 5.6-7.3 | 0 | ---

 | 8-24 | 30-36 | --- | 5.6-7.3 | 0 | ---

 | 24-32 | 30-36 | --- | 5.6-7.3 | 0 | ---

 | 32-47 | 30-36 | --- | 6.1-7.3 | 0 | ---

 | 47-58 | 30-36 | --- | 6.6-8.4 | 0 | ---

 | 58-80 | 25-30 | --- | 6.6-8.4 | 0-25 | ---

 | | | | | |

933: | | | | | |

 Sawmill, occasionally| | | | | |

 flooded-------------| 0-10 | 36-41 | --- | 6.1-7.8 | 0 | ---

 | 10-25 | 36-41 | --- | 6.1-7.8 | 0 | ---

 | 25-32 | 36-41 | --- | 6.1-7.8 | 0 | ---

 | 32-40 | 17-27 | --- | 6.1-7.8 | 0 | ---

 | 40-58 | 17-27 | --- | 6.1-7.8 | 0 | ---

 | 58-65 | 11-22 | --- | 7.4-8.4 | 0-30 | ---

 | | | | | |
Black Hawk County, Iowa 475

Table 20.--Chemical Properties of the Soils--Continued

____________________________________________________________________________________

 | | | | | |

 Map symbol | Depth | Cation- |Effective| Soil |Calcium| Salinity

 and soil name | |exchange | cation- |reaction |carbon-|

 | |capacity |exchange | | ate |

 | | |capacity | | | ____________________________________________________________________________________

 | In |meq/100 g|meq/100 g| pH | Pct | mmhos/cm

 | | | | | |

982: | | | | | |

 Maxmore--------------| 0-8 | 36-41 | --- | 6.6-7.3 | 0 | ---

 | 8-20 | 36-41 | --- | 6.6-7.3 | 0 | ---

 | 20-50 | 36-41 | --- | 6.1-7.3 | 0 | ---

 | 50-80 | 25-30 | --- | 6.1-7.8 | 0-25 | ---

 | | | | | |

1152: | | | | | |

 Marshan, 24 to 40 | | | | | |

 inches to sand and | | | | | |

 gravel--------------| 0-10 | 30-36 | --- | 5.6-7.3 | 0 | ---

 | 10-14 | 30-36 | --- | 5.6-7.3 | 0 | ---

 | 14-18 | 30-36 | --- | 5.6-7.3 | 0 | ---

 | 18-23 | 20-25 | --- | 5.6-7.3 | 0 | ---

 | 23-30 | 20-25 | --- | 5.6-7.3 | 0 | ---

 | 30-40 | 5.0-10 | --- | 6.1-7.3 | 0 | ---

 | 40-60 | 5.0-10 | --- | 6.1-7.3 | 0 | ---

 | | | | | |

1226: | | | | | |

 Lawler, 24 to 40 | | | | | |

 inches to sand and | | | | | |

 gravel--------------| 0-8 | 20-25 | --- | 5.6-7.3 | 0 | ---

 | 8-15 | 20-25 | --- | 5.6-7.3 | 0 | ---

 | 15-21 | 20-25 | --- | 5.6-7.3 | 0 | ---

 | 21-32 | 15-20 | --- | 5.1-6.5 | 0 | ---

 | 32-37 | 15-20 | --- | 5.1-6.5 | 0 | ---

 | 37-60 | 5.0-10 | --- | 5.1-7.3 | 0 | ---

 | | | | | |

1285G: | | | | | |

 Burkhardt------------| 0-10 | 15-20 | --- | 5.1-6.5 | 0 | ---

 | 10-17 | 0.0-6.0 | --- | 5.1-6.5 | 0 | ---

 | 17-19 | 0.0-6.0 | --- | 5.6-6.5 | 0 | ---

 | 19-60 | 0.0-6.0 | --- | 5.6-6.5 | 0 | ---

 | | | | | |

 Bassett--------------| 0-5 | 20-25 | --- | 5.1-7.3 | 0 | ---

 | 5-10 | 20-25 | --- | 5.1-7.3 | 0 | ---

 | 10-14 | 20-25 | --- | 5.1-7.3 | 0 | ---

 | 14-43 | 20-25 | --- | 4.5-7.3 | 0-25 | ---

 | 43-59 | 20-25 | --- | 4.5-7.3 | 0-25 | ---

 | 59-73 | 20-25 | --- | 5.1-8.4 | 0-25 | ---

 | | | | | |

 Chelsea--------------| 0-4 | 5.0-10 | --- | 5.6-7.3 | 0 | ---

 | 4-30 | 5.0-10 | --- | 5.1-6.5 | 0 | ---

 | 30-70 | 5.0-10 | --- | 5.1-6.5 | 0 | ---

 | | | | | |

1585: | | | | | |

 Spillville, | | | | | |

 frequently flooded--| 0-54 | 20-25 | --- | 5.6-7.3 | 0 | ---

 | 54-60 | 20-25 | --- | 5.6-7.3 | 0 | ---

 | | | | | |

 Coland, frequently | | | | | |

 flooded-------------| 0-32 | 30-36 | --- | 6.1-7.3 | 0 | ---

 | 32-40 | 30-36 | --- | 6.1-7.3 | 0 | ---

 | 40-44 | 20-30 | --- | 6.1-7.8 | 0-20 | ---

 | 44-52 | 20-30 | --- | 6.1-7.8 | 0-20 | ---

 | 52-60 | 20-30 | --- | 6.1-7.8 | 0-20 | ---

 | | | | | |

 Aquolls, ponded. | | | | | |

 | | | | | |
476 Soil Survey of

Table 20.--Chemical Properties of the Soils--Continued

____________________________________________________________________________________

 | | | | | |

 Map symbol | Depth | Cation- |Effective| Soil |Calcium| Salinity

 and soil name | |exchange | cation- |reaction |carbon-|

 | |capacity |exchange | | ate |

 | | |capacity | | | ____________________________________________________________________________________

 | In |meq/100 g|meq/100 g| pH | Pct | mmhos/cm

 | | | | | |

1586: | | | | | |

 Sigglekov, frequently| | | | | |

 flooded-------------| 0-9 | 10-15 | --- | 5.6-6.5 | 0 | ---

 | 9-15 | 5.0-10 | --- | 5.6-7.3 | 0 | ---

 | 15-35 | 5.0-10 | --- | 5.6-7.3 | 0 | ---

 | 35-80 | 5.0-10 | --- | 5.6-7.3 | 0 | ---

 | | | | | |

 Fluvaquents, | | | | | |

 frequently flooded. | | | | | |

 | | | | | |

 Aquents, ponded. | | | | | |

 | | | | | |

4000. | | | | | |

 Urban land | | | | | |

 | | | | | |

4007: | | | | | |

 Wiota----------------| 0-8 | 20-25 | --- | 5.6-7.3 | 0 | ---

 | 8-22 | 20-25 | --- | 5.6-7.3 | 0 | ---

 | 22-28 | 20-25 | --- | 5.6-7.3 | 0 | ---

 | 28-48 | 20-25 | --- | 5.6-6.5 | 0 | ---

 | 48-54 | 20-25 | --- | 6.1-6.5 | 0 | ---

 | 54-80 | 5.0-10 | --- | 5.1-6.5 | 0 | ---

 | | | | | |

 Urban land. | | | | | |

 | | | | | |

4041: | | | | | |

 Sparta---------------| 0-11 | 10-15 | --- | 5.1-7.3 | 0 | ---

 | 11-15 | 10-15 | --- | 5.1-7.3 | 0 | ---

 | 15-34 | 1.0-6.0 | --- | 5.1-6.5 | 0 | ---

 | 34-60 | 1.0-4.0 | --- | 5.1-6.0 | 0 | ---

 | | | | | |

 Urban land. | | | | | |

 | | | | | |

4041B: | | | | | |

 Sparta---------------| 0-11 | 10-15 | --- | 5.1-7.3 | 0 | ---

 | 11-15 | 10-15 | --- | 5.1-7.3 | 0 | ---

 | 15-34 | 1.0-6.0 | --- | 5.1-6.5 | 0 | ---

 | 34-60 | 1.0-4.0 | --- | 5.1-6.0 | 0 | ---

 | | | | | |

 Urban land. | | | | | |

 | | | | | |

4041C: | | | | | |

 Sparta---------------| 0-9 | 10-15 | --- | 5.1-7.3 | 0 | ---

 | 9-14 | 10-15 | --- | 5.1-7.3 | 0 | ---

 | 14-32 | 1.0-6.0 | --- | 5.1-6.5 | 0 | ---

 | 32-60 | 1.0-4.0 | --- | 5.1-6.0 | 0 | ---

 | | | | | |

 Urban land. | | | | | |

 | | | | | |

4041D: | | | | | |

 Sparta---------------| 0-9 | 10-15 | --- | 5.1-7.3 | 0 | ---

 | 9-14 | 10-15 | --- | 5.1-7.3 | 0 | ---

 | 14-30 | 1.0-6.0 | --- | 5.1-6.5 | 0 | ---

 | 30-60 | 1.0-4.0 | --- | 5.1-6.0 | 0 | ---

 | | | | | |

 Urban land. | | | | | |

 | | | | | |

4063B: | | | | | |

 Chelsea--------------| 0-8 | 5.0-10 | --- | 5.6-7.3 | 0 | ---

 | 8-36 | 5.0-10 | --- | 5.1-6.5 | 0 | ---

 | 36-70 | 5.0-10 | --- | 5.1-6.5 | 0 | ---

 | | | | | |
Black Hawk County, Iowa 477

Table 20.--Chemical Properties of the Soils--Continued

____________________________________________________________________________________

 | | | | | |

 Map symbol | Depth | Cation- |Effective| Soil |Calcium| Salinity

 and soil name | |exchange | cation- |reaction |carbon-|

 | |capacity |exchange | | ate |

 | | |capacity | | | ____________________________________________________________________________________

 | In |meq/100 g|meq/100 g| pH | Pct | mmhos/cm

 | | | | | |

4063B: | | | | | |

 Urban land. | | | | | |

 | | | | | |

4063C: | | | | | |

 Chelsea--------------| 0-8 | 5.0-10 | --- | 5.6-7.3 | 0 | ---

 | 8-36 | 5.0-10 | --- | 5.1-6.5 | 0 | ---

 | 36-70 | 5.0-10 | --- | 5.1-6.5 | 0 | ---

 | | | | | |

 Urban land. | | | | | |

 | | | | | |

4063D: | | | | | |

 Chelsea--------------| 0-8 | 5.0-10 | --- | 5.6-7.3 | 0 | ---

 | 8-32 | 5.0-10 | --- | 5.1-6.5 | 0 | ---

 | 32-70 | 5.0-10 | --- | 5.1-6.5 | 0 | ---

 | | | | | |

 Urban land. | | | | | |

 | | | | | |

4083B: | | | | | |

 Kenyon---------------| 0-8 | 20-25 | --- | 5.6-7.3 | 0 | ---

 | 8-14 | 20-25 | --- | 5.6-7.3 | 0 | ---

 | 14-19 | 20-25 | --- | 5.6-7.3 | 0 | ---

 | 19-47 | 20-25 | --- | 5.1-7.3 | 0-25 | ---

 | 47-54 | 20-25 | --- | 6.6-8.4 | 0-25 | ---

 | 54-76 | 20-25 | --- | 6.6-8.4 | 0-25 | ---

 | | | | | |

 Urban land. | | | | | |

 | | | | | |

4083C: | | | | | |

 Kenyon---------------| 0-8 | 20-25 | --- | 5.6-7.3 | 0 | ---

 | 8-14 | 20-25 | --- | 5.6-7.3 | 0 | ---

 | 14-19 | 20-25 | --- | 5.6-7.3 | 0 | ---

 | 19-47 | 20-25 | --- | 5.1-7.3 | 0-25 | ---

 | 47-54 | 20-25 | --- | 6.6-8.4 | 0-25 | ---

 | 54-76 | 20-25 | --- | 6.6-8.4 | 0-25 | ---

 | | | | | |

 Urban land. | | | | | |

 | | | | | |

4083D: | | | | | |

 Kenyon---------------| 0-8 | 20-25 | --- | 5.6-7.3 | 0 | ---

 | 8-14 | 20-25 | --- | 5.6-7.3 | 0 | ---

 | 14-19 | 20-25 | --- | 5.6-7.3 | 0 | ---

 | 19-47 | 20-25 | --- | 5.1-7.3 | 0-25 | ---

 | 47-54 | 20-25 | --- | 6.6-8.4 | 0-25 | ---

 | 54-76 | 20-25 | --- | 6.6-8.4 | 0-25 | ---

 | | | | | |

 Urban land. | | | | | |

 | | | | | |

4084: | | | | | |

 Clyde----------------| 0-8 | 36-41 | --- | 6.6-7.3 | 0 | ---

 | 8-17 | 36-41 | --- | 6.6-7.3 | 0 | ---

 | 17-23 | 36-41 | --- | 6.6-7.3 | 0 | ---

 | 23-41 | 30-36 | --- | 6.1-7.3 | 0 | ---

 | 41-44 | 20-25 | --- | 6.1-7.3 | 0 | ---

 | 44-54 | 20-25 | --- | 6.6-8.4 | 0-25 | ---

 | 54-66 | 20-25 | --- | 6.6-8.4 | 0-25 | ---

 | | | | | |

 Urban land. | | | | | |

 | | | | | |
478 Soil Survey of

Table 20.--Chemical Properties of the Soils--Continued

____________________________________________________________________________________

 | | | | | |

 Map symbol | Depth | Cation- |Effective| Soil |Calcium| Salinity

 and soil name | |exchange | cation- |reaction |carbon-|

 | |capacity |exchange | | ate |

 | | |capacity | | | ____________________________________________________________________________________

 | In |meq/100 g|meq/100 g| pH | Pct | mmhos/cm

 | | | | | |

4088: | | | | | |

 Nevin----------------| 0-8 | 30-36 | --- | 5.6-7.3 | 0 | ---

 | 8-24 | 30-36 | --- | 5.6-7.3 | 0 | ---

 | 24-30 | 30-36 | --- | 5.6-7.3 | 0 | ---

 | 30-46 | 30-36 | --- | 6.1-6.5 | 0 | ---

 | 46-58 | 30-36 | --- | 6.1-6.5 | 0 | ---

 | 58-80 | 25-30 | --- | 5.6-6.0 | 0 | ---

 | | | | | |

 Urban land. | | | | | |

 | | | | | |

4133: | | | | | |

 Colo, occasionally | | | | | |

 flooded-------------| 0-8 | 36-41 | --- | 5.6-7.3 | 0 | ---

 | 8-34 | 36-41 | --- | 5.6-7.3 | 0 | ---

 | 34-40 | 36-41 | --- | 5.6-7.3 | 0 | ---

 | 40-46 | 36-41 | --- | 5.6-7.3 | 0 | ---

 | 46-52 | 36-41 | --- | 5.6-7.3 | 0 | ---

 | 52-60 | 30-36 | --- | 6.1-7.3 | 0 | ---

 | | | | | |

 Urban land. | | | | | |

 | | | | | |

4135: | | | | | |

 Coland, occasionally | | | | | |

 flooded-------------| 0-8 | 30-36 | --- | 6.1-7.3 | 0 | ---

 | 8-32 | 30-36 | --- | 6.1-7.3 | 0 | ---

 | 32-40 | 30-36 | --- | 6.1-7.3 | 0 | ---

 | 40-44 | 20-30 | --- | 6.1-7.8 | 0-20 | ---

 | 44-52 | 20-30 | --- | 6.1-7.8 | 0-20 | ---

 | 52-66 | 20-30 | --- | 6.1-7.8 | 0-20 | ---

 | | | | | |

 Urban land. | | | | | |

 | | | | | |

4152: | | | | | |

 Marshan, 24 to 40 | | | | | |

 inches to sand and | | | | | |

 gravel--------------| 0-10 | 30-36 | --- | 5.6-7.3 | 0 | ---

 | 10-14 | 30-36 | --- | 5.6-7.3 | 0 | ---

 | 14-18 | 30-36 | --- | 5.6-7.3 | 0 | ---

 | 18-23 | 20-25 | --- | 5.6-7.3 | 0 | ---

 | 23-30 | 20-25 | --- | 5.6-7.3 | 0 | ---

 | 30-40 | 5.0-10 | --- | 6.1-7.3 | 0 | ---

 | 40-60 | 5.0-10 | --- | 6.1-7.3 | 0 | ---

 | | | | | |

 Urban land. | | | | | |

 | | | | | |

4159: | | | | | |

 Finchford------------| 0-8 | 10-15 | --- | 6.1-7.3 | 0 | ---

 | 8-18 | 10-15 | --- | 6.1-7.3 | 0 | ---

 | 18-30 | 5.0-10 | --- | 5.1-6.0 | 0 | ---

 | 30-55 | 5.0-10 | --- | 5.6-6.5 | 0 | ---

 | 55-70 | 5.0-10 | --- | 5.6-6.5 | 0 | ---

 | 70-80 | 5.0-10 | --- | 5.6-6.5 | 0 | ---

 | | | | | |

 Urban land. | | | | | |

 | | | | | |
Black Hawk County, Iowa 479

Table 20.--Chemical Properties of the Soils--Continued

____________________________________________________________________________________

 | | | | | |

 Map symbol | Depth | Cation- |Effective| Soil |Calcium| Salinity

 and soil name | |exchange | cation- |reaction |carbon-|

 | |capacity |exchange | | ate |

 | | |capacity | | | ____________________________________________________________________________________

 | In |meq/100 g|meq/100 g| pH | Pct | mmhos/cm

 | | | | | |

4159C: | | | | | |

 Finchford------------| 0-8 | 10-15 | --- | 6.1-7.3 | 0 | ---

 | 8-15 | 10-15 | --- | 6.1-7.3 | 0 | ---

 | 15-26 | 5.0-10 | --- | 5.1-6.0 | 0 | ---

 | 26-50 | 5.0-10 | --- | 5.6-6.5 | 0 | ---

 | 50-65 | 5.0-10 | --- | 5.6-6.5 | 0 | ---

 | 65-80 | 5.0-10 | --- | 5.6-6.5 | 0 | ---

 | | | | | |

 Urban land. | | | | | |

 | | | | | |

4171B: | | | | | |

 Bassett--------------| 0-8 | 20-25 | --- | 5.1-7.3 | 0 | ---

 | 8-10 | 20-25 | --- | 5.1-7.3 | 0 | ---

 | 10-14 | 20-25 | --- | 5.1-7.3 | 0 | ---

 | 14-43 | 20-25 | --- | 4.5-7.3 | 0-25 | ---

 | 43-59 | 20-25 | --- | 4.5-7.3 | 0-25 | ---

 | 59-73 | 20-25 | --- | 5.1-8.4 | 0-25 | ---

 | | | | | |

 Urban land. | | | | | |

 | | | | | |

4171D: | | | | | |

 Bassett--------------| 0-8 | 20-25 | --- | 5.1-7.3 | 0 | ---

 | 8-10 | 20-25 | --- | 5.1-7.3 | 0 | ---

 | 10-14 | 20-25 | --- | 5.1-7.3 | 0 | ---

 | 14-43 | 20-25 | --- | 4.5-7.3 | 0-25 | ---

 | 43-59 | 20-25 | --- | 4.5-7.3 | 0-25 | ---

 | 59-73 | 20-25 | --- | 5.1-8.4 | 0-25 | ---

 | | | | | |

 Urban land. | | | | | |

 | | | | | |

4175: | | | | | |

 Dickinson------------| 0-9 | 15-20 | --- | 5.6-7.3 | 0 | ---

 | 9-18 | 15-20 | --- | 5.1-6.5 | 0 | ---

 | 18-30 | 5.0-10 | --- | 5.1-6.5 | 0 | ---

 | 30-36 | 5.0-10 | --- | 5.1-6.5 | 0 | ---

 | 36-60 | 5.0-10 | --- | 5.6-6.5 | 0 | ---

 | | | | | |

 Urban land. | | | | | |

 | | | | | |

4175B: | | | | | |

 Dickinson------------| 0-9 | 15-20 | --- | 5.6-7.3 | 0 | ---

 | 9-18 | 15-20 | --- | 5.1-6.5 | 0 | ---

 | 18-30 | 5.0-10 | --- | 5.1-6.5 | 0 | ---

 | 30-36 | 5.0-10 | --- | 5.1-6.5 | 0 | ---

 | 36-60 | 5.0-10 | --- | 5.6-6.5 | 0 | ---

 | | | | | |

 Urban land. | | | | | |

 | | | | | |

4177: | | | | | |

 Saude----------------| 0-7 | 20-25 | --- | 5.6-7.3 | 0 | ---

 | 7-13 | 20-25 | --- | 5.6-7.3 | 0 | ---

 | 13-16 | 15-20 | --- | 5.1-6.0 | 0 | ---

 | 16-24 | 15-20 | --- | 5.1-6.0 | 0 | ---

 | 24-28 | 15-20 | --- | 5.1-6.0 | 0 | ---

 | 28-36 | 5.0-10 | --- | 5.1-6.5 | 0 | ---

 | 36-60 | 5.0-10 | --- | 5.1-6.5 | 0 | ---

 | | | | | |

 Urban land. | | | | | |

 | | | | | |
480 Soil Survey of

Table 20.--Chemical Properties of the Soils--Continued

____________________________________________________________________________________

 | | | | | |

 Map symbol | Depth | Cation- |Effective| Soil |Calcium| Salinity

 and soil name | |exchange | cation- |reaction |carbon-|

 | |capacity |exchange | | ate |

 | | |capacity | | | ____________________________________________________________________________________

 | In |meq/100 g|meq/100 g| pH | Pct | mmhos/cm

 | | | | | |

4177B: | | | | | |

 Saude----------------| 0-7 | 20-25 | --- | 5.6-7.3 | 0 | ---

 | 7-13 | 20-25 | --- | 5.6-7.3 | 0 | ---

 | 13-16 | 15-20 | --- | 5.1-6.0 | 0 | ---

 | 16-24 | 15-20 | --- | 5.1-6.0 | 0 | ---

 | 24-28 | 15-20 | --- | 5.1-6.0 | 0 | ---

 | 28-36 | 5.0-10 | --- | 5.1-6.5 | 0 | ---

 | 36-60 | 5.0-10 | --- | 5.1-6.5 | 0 | ---

 | | | | | |

 Urban land. | | | | | |

 | | | | | |

4178: | | | | | |

 Waukee---------------| 0-8 | 20-25 | --- | 5.6-6.5 | 0 | ---

 | 8-16 | 20-25 | --- | 5.6-6.5 | 0 | ---

 | 16-20 | 20-25 | --- | 5.1-6.0 | 0 | ---

 | 20-35 | 20-25 | --- | 5.1-6.0 | 0 | ---

 | 35-44 | 5.0-10 | --- | 5.6-6.5 | 0 | ---

 | 44-66 | 5.0-10 | --- | 5.6-6.5 | 0 | ---

 | | | | | |

 Urban land. | | | | | |

 | | | | | |

4184: | | | | | |

 Klinger--------------| 0-9 | 30-36 | --- | 5.1-7.3 | 0 | ---

 | 9-13 | 30-36 | --- | 5.1-7.3 | 0 | ---

 | 13-19 | 30-36 | --- | 5.1-7.3 | 0 | ---

 | 19-31 | 25-30 | --- | 5.1-6.5 | 0 | ---

 | 31-40 | 15-20 | --- | 5.1-7.8 | 0-25 | ---

 | 40-46 | 15-20 | --- | 5.1-7.8 | 0-25 | ---

 | 46-64 | 15-20 | --- | 5.1-7.8 | 0-25 | ---

 | | | | | |

 Urban land. | | | | | |

 | | | | | |

4198B: | | | | | |

 Floyd----------------| 0-8 | 25-30 | --- | 6.1-7.3 | 0 | ---

 | 8-24 | 25-30 | --- | 6.1-7.3 | 0 | ---

 | 24-33 | 25-30 | --- | 6.1-7.3 | 0 | ---

 | 33-41 | 5.0-10 | --- | 6.6-7.3 | 0 | ---

 | 41-50 | 25-30 | --- | 6.6-8.4 | 0-25 | ---

 | 50-60 | 25-30 | --- | 6.6-8.4 | 0-25 | ---

 | | | | | |

 Urban land. | | | | | |

 | | | | | |

4226: | | | | | |

 Lawler, 24 to 40 | | | | | |

 inches to sand and | | | | | |

 gravel--------------| 0-8 | 20-25 | --- | 5.6-7.3 | 0 | ---

 | 8-15 | 20-25 | --- | 5.6-7.3 | 0 | ---

 | 15-21 | 20-25 | --- | 5.6-7.3 | 0 | ---

 | 21-32 | 15-20 | --- | 5.1-6.5 | 0 | ---

 | 32-37 | 15-20 | --- | 5.1-6.5 | 0 | ---

 | 37-60 | 5.0-10 | --- | 5.1-7.3 | 0 | ---

 | | | | | |

 Urban land. | | | | | |

 | | | | | |

4284: | | | | | |

 Flagler--------------| 0-8 | 15-20 | --- | 5.6-7.3 | 0 | ---

 | 8-15 | 15-20 | --- | 5.6-7.3 | 0 | ---

 | 15-22 | 15-20 | --- | 5.6-7.3 | 0 | ---

 | 22-33 | 10-15 | --- | 5.1-6.5 | 0 | ---

 | 33-65 | 5.0-10 | --- | 5.1-7.3 | 0 | ---

 | | | | | |
Black Hawk County, Iowa 481

Table 20.--Chemical Properties of the Soils--Continued

____________________________________________________________________________________

 | | | | | |

 Map symbol | Depth | Cation- |Effective| Soil |Calcium| Salinity

 and soil name | |exchange | cation- |reaction |carbon-|

 | |capacity |exchange | | ate |

 | | |capacity | | | ____________________________________________________________________________________

 | In |meq/100 g|meq/100 g| pH | Pct | mmhos/cm

 | | | | | |

4284: | | | | | |

 Urban land. | | | | | |

 | | | | | |

4284B: | | | | | |

 Flagler--------------| 0-8 | 15-20 | --- | 5.6-7.3 | 0 | ---

 | 8-15 | 15-20 | --- | 5.6-7.3 | 0 | ---

 | 15-22 | 15-20 | --- | 5.6-7.3 | 0 | ---

 | 22-33 | 10-15 | --- | 5.1-6.5 | 0 | ---

 | 33-65 | 5.0-10 | --- | 5.1-7.3 | 0 | ---

 | | | | | |

 Urban land. | | | | | |

 | | | | | |

4377B: | | | | | |

 Dinsdale-------------| 0-7 | 25-30 | --- | 5.1-7.3 | 0 | ---

 | 7-15 | 25-30 | --- | 5.1-7.3 | 0 | ---

 | 15-21 | 25-30 | --- | 5.1-7.3 | 0 | ---

 | 21-36 | 25-30 | --- | 5.1-7.3 | 0 | ---

 | 36-50 | 25-30 | --- | 5.6-8.4 | 0-25 | ---

 | 50-80 | 25-30 | --- | 5.6-8.4 | 0-25 | ---

 | | | | | |

 Urban land. | | | | | |

 | | | | | |

4377C: | | | | | |

 Dinsdale-------------| 0-7 | 25-30 | --- | 5.1-7.3 | 0 | ---

 | 7-15 | 25-30 | --- | 5.1-7.3 | 0 | ---

 | 15-21 | 25-30 | --- | 5.1-7.3 | 0 | ---

 | 21-36 | 25-30 | --- | 5.1-7.3 | 0 | ---

 | 36-50 | 25-30 | --- | 5.6-8.4 | 0-25 | ---

 | 50-80 | 25-30 | --- | 5.6-8.4 | 0-25 | ---

 | | | | | |

 Urban land. | | | | | |

 | | | | | |

4382: | | | | | |

 Maxfield-------------| 0-7 | 36-41 | --- | 6.6-7.3 | 0 | ---

 | 7-17 | 36-41 | --- | 6.6-7.3 | 0 | ---

 | 17-23 | 30-36 | --- | 6.1-7.3 | 0 | ---

 | 23-32 | 30-36 | --- | 6.1-7.3 | 0 | ---

 | 32-45 | 25-30 | --- | 6.1-7.8 | 0-25 | ---

 | 45-66 | 25-30 | --- | 6.1-7.8 | 0-25 | ---

 | | | | | |

 Urban land. | | | | | |

 | | | | | |

4391B: | | | | | |

 Clyde----------------| 0-8 | 36-41 | --- | 6.6-7.3 | 0 | ---

 | 8-17 | 36-41 | --- | 6.6-7.3 | 0 | ---

 | 17-23 | 36-41 | --- | 6.6-7.3 | 0 | ---

 | 23-41 | 30-36 | --- | 6.1-7.3 | 0 | ---

 | 41-44 | 20-25 | --- | 6.1-7.3 | 0 | ---

 | 44-54 | 20-25 | --- | 6.6-8.4 | 0-25 | ---

 | 54-66 | 20-25 | --- | 6.6-8.4 | 0-25 | ---

 | | | | | |

 Floyd----------------| 0-8 | 25-30 | --- | 6.1-7.3 | 0 | ---

 | 8-24 | 25-30 | --- | 6.1-7.3 | 0 | ---

 | 24-33 | 25-30 | --- | 6.1-7.3 | 0 | ---

 | 33-41 | 5.0-10 | --- | 6.6-7.3 | 0 | ---

 | 41-50 | 25-30 | --- | 6.6-8.4 | 0-25 | ---

 | 50-60 | 25-30 | --- | 6.6-8.4 | 0-25 | ---

 | | | | | |

 Urban land. | | | | | |

 | | | | | |
482 Soil Survey of

Table 20.--Chemical Properties of the Soils--Continued

____________________________________________________________________________________

 | | | | | |

 Map symbol | Depth | Cation- |Effective| Soil |Calcium| Salinity

 and soil name | |exchange | cation- |reaction |carbon-|

 | |capacity |exchange | | ate |

 | | |capacity | | | ____________________________________________________________________________________

 | In |meq/100 g|meq/100 g| pH | Pct | mmhos/cm

 | | | | | |

4398: | | | | | |

 Tripoli--------------| 0-9 | 36-41 | --- | 6.6-7.3 | 0 | ---

 | 9-18 | 36-41 | --- | 6.6-7.3 | 0 | ---

 | 18-24 | 30-36 | --- | 6.6-7.8 | 0 | ---

 | 24-38 | 30-36 | --- | 6.6-7.8 | 0-25 | ---

 | 38-66 | 25-30 | --- | 7.4-8.4 | 0-25 | ---

 | | | | | |

 Urban land. | | | | | |

 | | | | | |

4399: | | | | | |

 Readlyn--------------| 0-7 | 25-30 | --- | 5.1-7.3 | 0 | ---

 | 7-17 | 25-30 | --- | 5.1-7.3 | 0 | ---

 | 17-43 | 25-30 | --- | 5.1-6.5 | 0-25 | ---

 | 43-52 | 25-30 | --- | 6.6-8.4 | 0-25 | ---

 | 52-60 | 25-30 | --- | 6.6-8.4 | 0-25 | ---

 | | | | | |

 Urban land. | | | | | |

 | | | | | |

4408B: | | | | | |

 Olin-----------------| 0-7 | 15-20 | --- | 5.6-7.3 | 0 | ---

 | 7-23 | 15-20 | --- | 5.6-7.3 | 0 | ---

 | 23-31 | 15-20 | --- | 5.6-7.3 | 0 | ---

 | 31-52 | 15-20 | --- | 5.1-6.0 | 0-25 | ---

 | 52-80 | 15-20 | --- | 6.1-8.4 | 0-25 | ---

 | | | | | |

 Urban land. | | | | | |

 | | | | | |

4408C: | | | | | |

 Olin-----------------| 0-7 | 15-20 | --- | 5.6-7.3 | 0 | ---

 | 7-23 | 15-20 | --- | 5.6-7.3 | 0 | ---

 | 23-31 | 15-20 | --- | 5.6-7.3 | 0 | ---

 | 31-52 | 15-20 | --- | 5.1-6.0 | 0-25 | ---

 | 52-80 | 15-20 | --- | 6.1-8.4 | 0-25 | ---

 | | | | | |

 Urban land. | | | | | |

 | | | | | |

4426B: | | | | | |

 Aredale--------------| 0-7 | 20-25 | --- | 5.6-7.3 | 0 | ---

 | 7-19 | 20-25 | --- | 5.6-7.3 | 0 | ---

 | 19-33 | 20-25 | --- | 5.1-6.0 | 0 | ---

 | 33-55 | 20-25 | --- | 5.1-6.0 | 0 | ---

 | 55-70 | 20-25 | --- | 5.6-7.3 | 0-25 | ---

 | | | | | |

 Urban land. | | | | | |

 | | | | | |

4426C: | | | | | |

 Aredale--------------| 0-7 | 20-25 | --- | 5.6-7.3 | 0 | ---

 | 7-19 | 20-25 | --- | 5.6-7.3 | 0 | ---

 | 19-33 | 20-25 | --- | 5.1-6.0 | 0 | ---

 | 33-55 | 20-25 | --- | 5.1-6.0 | 0 | ---

 | 55-70 | 20-25 | --- | 5.6-7.3 | 0-25 | ---

 | | | | | |

 Urban land. | | | | | |

 | | | | | |

4585: | | | | | |

 Spillville, | | | | | |

 occasionally flooded| 0-8 | 20-25 | --- | 5.6-7.3 | 0 | ---

 | 8-54 | 20-25 | --- | 5.6-7.3 | 0 | ---

 | 54-60 | 20-25 | --- | 5.6-7.3 | 0 | ---

 | | | | | |
Black Hawk County, Iowa 483

Table 20.--Chemical Properties of the Soils--Continued

____________________________________________________________________________________

 | | | | | |

 Map symbol | Depth | Cation- |Effective| Soil |Calcium| Salinity

 and soil name | |exchange | cation- |reaction |carbon-|

 | |capacity |exchange | | ate |

 | | |capacity | | | ____________________________________________________________________________________

 | In |meq/100 g|meq/100 g| pH | Pct | mmhos/cm

 | | | | | |

4585: | | | | | |

 Coland, occasionally | | | | | |

 flooded-------------| 0-8 | 30-36 | --- | 6.1-7.3 | 0 | ---

 | 8-32 | 30-36 | --- | 6.1-7.3 | 0 | ---

 | 32-40 | 30-36 | --- | 6.1-7.3 | 0 | ---

 | 40-44 | 20-30 | --- | 6.1-7.8 | 0-20 | ---

 | 44-52 | 20-30 | --- | 6.1-7.8 | 0-20 | ---

 | 52-60 | 20-30 | --- | 6.1-7.8 | 0-20 | ---

 | | | | | |

 Urban land. | | | | | |

 | | | | | |

4761: | | | | | |

 Franklin-------------| 0-6 | 20-25 | --- | 4.5-7.3 | 0 | ---

 | 6-13 | 20-25 | 20-25 | 4.5-7.3 | 0 | ---

 | 13-18 | 20-25 | 20-25 | 4.5-6.0 | 0 | ---

 | 18-28 | 20-25 | 20-25 | 4.5-6.0 | 0 | ---

 | 28-37 | 20-25 | --- | 5.1-8.4 | 0-25 | ---

 | 37-46 | 20-25 | --- | 5.1-8.4 | 0-25 | ---

 | 46-64 | 20-25 | --- | 5.1-8.4 | 0-25 | ---

 | 64-74 | 20-25 | --- | 5.1-8.4 | 0-25 | ---

 | | | | | |

 Urban land. | | | | | |

 | | | | | |

4771B: | | | | | |

 Waubeek--------------| 0-7 | 20-25 | --- | 5.6-7.3 | 0 | ---

 | 7-13 | 20-25 | --- | 5.6-7.3 | 0 | ---

 | 13-29 | 20-25 | --- | 5.1-6.0 | 0 | ---

 | 29-34 | 20-25 | --- | 5.1-7.3 | 0-25 | ---

 | 34-45 | 20-25 | --- | 5.1-7.3 | 0-25 | ---

 | 45-67 | 20-25 | --- | 5.1-7.3 | 0-25 | ---

 | | | | | |

 Urban land. | | | | | |

 | | | | | |

4771D: | | | | | |

 Waubeek--------------| 0-7 | 20-25 | --- | 5.6-7.3 | 0 | ---

 | 7-13 | 20-25 | --- | 5.6-7.3 | 0 | ---

 | 13-29 | 20-25 | --- | 5.1-6.0 | 0 | ---

 | 29-34 | 20-25 | --- | 5.1-7.3 | 0-25 | ---

 | 34-45 | 20-25 | --- | 5.1-7.3 | 0-25 | ---

 | 45-67 | 20-25 | --- | 5.1-7.3 | 0-25 | ---

 | | | | | |

 Urban land. | | | | | |

 | | | | | |

4798: | | | | | |

 Protivin-------------| 0-8 | 25-30 | --- | 5.1-7.3 | 0 | ---

 | 8-15 | 25-30 | --- | 5.1-7.3 | 0 | ---

 | 15-19 | 25-30 | --- | 5.1-6.0 | 0 | ---

 | 19-23 | 25-30 | --- | 5.1-6.0 | 0 | ---

 | 23-45 | 25-30 | --- | 6.1-7.8 | 0-25 | ---

 | 45-60 | 25-30 | --- | 6.1-7.8 | 0-25 | ---

 | | | | | |

 Urban land. | | | | | |

 | | | | | |

4911B: | | | | | |

 Colo-----------------| 0-8 | 36-41 | --- | 5.6-7.3 | 0 | ---

 | 8-34 | 36-41 | --- | 5.6-7.3 | 0 | ---

 | 34-40 | 36-41 | --- | 5.6-7.3 | 0 | ---

 | 40-46 | 36-41 | --- | 5.6-7.3 | 0 | ---

 | 46-52 | 36-41 | --- | 5.6-7.3 | 0 | ---

 | 52-60 | 30-36 | --- | 6.1-7.3 | 0 | ---

 | | | | | |
484 Soil Survey of

Table 20.--Chemical Properties of the Soils--Continued

____________________________________________________________________________________

 | | | | | |

 Map symbol | Depth | Cation- |Effective| Soil |Calcium| Salinity

 and soil name | |exchange | cation- |reaction |carbon-|

 | |capacity |exchange | | ate |

 | | |capacity | | | ____________________________________________________________________________________

 | In |meq/100 g|meq/100 g| pH | Pct | mmhos/cm

 | | | | | |

4911B: | | | | | |

 Ely------------------| 0-8 | 30-36 | --- | 5.6-7.3 | 0 | ---

 | 8-24 | 30-36 | --- | 5.6-7.3 | 0 | ---

 | 24-32 | 30-36 | --- | 5.6-7.3 | 0 | ---

 | 32-47 | 30-36 | --- | 6.1-7.3 | 0 | ---

 | 47-58 | 30-36 | --- | 6.6-8.4 | 0 | ---

 | 58-80 | 25-30 | --- | 6.6-8.4 | 0-25 | ---

 | | | | | |

 Urban land. | | | | | |

 | | | | | |

4933: | | | | | |

 Sawmill, occasionally| | | | | |

 flooded-------------| 0-10 | 36-41 | --- | 6.1-7.8 | 0 | ---

 | 10-25 | 36-41 | --- | 6.1-7.8 | 0 | ---

 | 25-32 | 36-41 | --- | 6.1-7.8 | 0 | ---

 | 32-40 | 17-27 | --- | 6.1-7.8 | 0 | ---

 | 40-58 | 17-27 | --- | 6.1-7.8 | 0 | ---

 | 58-65 | 11-22 | --- | 7.4-8.4 | 0-30 | ---

 | | | | | |

 Urban land. | | | | | |

 | | | | | |

4946: | | | | | |

 Orthents, loamy. | | | | | |

 | | | | | |

 Urban land. | | | | | |

 | | | | | |

5010. | | | | | |

 Pits, sand and gravel| | | | | |

 | | | | | |

5030. | | | | | |

 Pits, limestone | | | | | |

 quarries | | | | | |

 | | | | | |

5040. | | | | | |

 Orthents, loamy | | | | | |

 | | | | | |

5053. | | | | | |

 Psammaquents, | | | | | |

 frequently flooded | | | | | |

 | | | | | |

5080. | | | | | |

 Orthents, sanitary | | | | | |

 landfill | | | | | |

 | | | | | |

AW. | | | | | |

 Animal waste | | | | | |

 | | | | | |

SL. | | | | | |

 Sewage lagoon | | | | | |

 | | | | | |

W. | | | | | |

 Water | | | | | |

 | | | | | | ____________________________________________________________________________________
Black Hawk County, Iowa 485

Table 21.--Water Features

(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-| Months | Upper | Lower |Surface| Duration |Frequency | Duration | Frequency

 and soil name |logic | | limit | limit | water | | | |

 |group | | | | depth | | | | _____________________________________________________________________________________________________________________

 | | | Ft | Ft | Ft | | | |

 | | | | | | | | |

7: | | | | | | | | |

 Wiota---------------------| B | | | | | | | |

 | |Jan-Dec | --- | --- | --- | --- | None | --- | None

 | | | | | | | | |

41: | | | | | | | | |

 Sparta--------------------| A | | | | | | | |

 | |Jan-Dec | --- | --- | --- | --- | None | --- | None

 | | | | | | | | |

41B: | | | | | | | | |

 Sparta--------------------| A | | | | | | | |

 | |Jan-Dec | --- | --- | --- | --- | None | --- | None

 | | | | | | | | |

41C: | | | | | | | | |

 Sparta--------------------| A | | | | | | | |

 | |Jan-Dec | --- | --- | --- | --- | None | --- | None

 | | | | | | | | |

41D: | | | | | | | | |

 Sparta--------------------| A | | | | | | | |

 | |Jan-Dec | --- | --- | --- | --- | None | --- | None

 | | | | | | | | |

63B: | | | | | | | | |

 Chelsea-------------------| A | | | | | | | |

 | |Jan-Dec | --- | --- | --- | --- | None | --- | None

 | | | | | | | | |

63C: | | | | | | | | |

 Chelsea-------------------| A | | | | | | | |

 | |Jan-Dec | --- | --- | --- | --- | None | --- | None

 | | | | | | | | |

63D: | | | | | | | | |

 Chelsea-------------------| A | | | | | | | |

 | |Jan-Dec | --- | --- | --- | --- | None | --- | None

 | | | | | | | | |

83B: | | | | | | | | |

 Kenyon--------------------| B | | | | | | | |

 | |January |6.0-6.7| >6.0 | --- | --- | None | --- | None

 | |February |5.5-6.7| >6.0 | --- | --- | None | --- | None

 | |March |4.5-6.5| >6.0 | --- | --- | None | --- | None

 | |April |4.0-6.0| >6.0 | --- | --- | None | --- | None

 | |May |4.5-6.5| >6.0 | --- | --- | None | --- | None

 | |June |5.0-6.7| >6.0 | --- | --- | None | --- | None

 | |July |6.0-6.7| >6.0 | --- | --- | None | --- | None

 | |August |6.5-6.7| >6.0 | --- | --- | None | --- | None

 | |October |6.5-6.7| >6.0 | --- | --- | None | --- | None

 | |November |5.5-6.7| >6.0 | --- | --- | None | --- | None

 | |December |6.0-6.7| >6.0 | --- | --- | None | --- | None

 | | | | | | | | |
486 Soil Survey of

Table 21.--Water Features--Continued

_____________________________________________________________________________________________________________________

 | | | Water table | Ponding | Flooding _______________________________________________________________________

 Map symbol |Hydro-| Months | Upper | Lower |Surface| Duration |Frequency | Duration | Frequency

 and soil name |logic | | limit | limit | water | | | |

 |group | | | | depth | | | | _____________________________________________________________________________________________________________________

 | | | Ft | Ft | Ft | | | |

 | | | | | | | | |

83C: | | | | | | | | |

 Kenyon--------------------| B | | | | | | | |

 | |January |6.0-6.7| >6.0 | --- | --- | None | --- | None

 | |February |5.5-6.7| >6.0 | --- | --- | None | --- | None

 | |March |4.5-6.5| >6.0 | --- | --- | None | --- | None

 | |April |4.0-6.0| >6.0 | --- | --- | None | --- | None

 | |May |4.5-6.5| >6.0 | --- | --- | None | --- | None

 | |June |5.0-6.7| >6.0 | --- | --- | None | --- | None

 | |July |6.0-6.7| >6.0 | --- | --- | None | --- | None

 | |August |6.5-6.7| >6.0 | --- | --- | None | --- | None

 | |October |6.5-6.7| >6.0 | --- | --- | None | --- | None

 | |November |5.5-6.7| >6.0 | --- | --- | None | --- | None

 | |December |6.0-6.7| >6.0 | --- | --- | None | --- | None

 | | | | | | | | |

83C2: | | | | | | | | |

 Kenyon, moderately eroded | B | | | | | | | |

 | |January |6.0-6.7| >6.0 | --- | --- | None | --- | None

 | |February |5.5-6.7| >6.0 | --- | --- | None | --- | None

 | |March |4.5-6.5| >6.0 | --- | --- | None | --- | None

 | |April |4.0-6.0| >6.0 | --- | --- | None | --- | None

 | |May |4.5-6.5| >6.0 | --- | --- | None | --- | None

 | |June |5.0-6.7| >6.0 | --- | --- | None | --- | None

 | |July |6.0-6.7| >6.0 | --- | --- | None | --- | None

 | |August |6.5-6.7| >6.0 | --- | --- | None | --- | None

 | |October |6.5-6.7| >6.0 | --- | --- | None | --- | None

 | |November |5.5-6.7| >6.0 | --- | --- | None | --- | None

 | |December |6.0-6.7| >6.0 | --- | --- | None | --- | None

 | | | | | | | | |

83D2: | | | | | | | | |

 Kenyon, moderately eroded | B | | | | | | | |

 | |January |6.0-6.7| >6.0 | --- | --- | None | --- | None

 | |February |5.5-6.7| >6.0 | --- | --- | None | --- | None

 | |March |4.5-6.5| >6.0 | --- | --- | None | --- | None

 | |April |4.0-6.0| >6.0 | --- | --- | None | --- | None

 | |May |4.5-6.5| >6.0 | --- | --- | None | --- | None

 | |June |5.0-6.7| >6.0 | --- | --- | None | --- | None

 | |July |6.0-6.7| >6.0 | --- | --- | None | --- | None

 | |August |6.5-6.7| >6.0 | --- | --- | None | --- | None

 | |October |6.5-6.7| >6.0 | --- | --- | None | --- | None

 | |November |5.5-6.7| >6.0 | --- | --- | None | --- | None

 | |December |6.0-6.7| >6.0 | --- | --- | None | --- | None

 | | | | | | | | |

84: | | | | | | | | |

 Clyde---------------------| B/D | | | | | | | |

 | |January |2.0-3.5| >6.0 | --- | --- | None | --- | None

 | |February |1.5-3.0| >6.0 | --- | --- | None | --- | None

 | |March |0.5-2.0| >6.0 | --- | --- | None | --- | None

 | |April |0.0-1.0| >6.0 | --- | --- | None | --- | None

 | |May |0.5-1.5| >6.0 | --- | --- | None | --- | None

 | |June |1.0-2.0| >6.0 | --- | --- | None | --- | None

 | |July |2.0-3.0| >6.0 | --- | --- | None | --- | None

 | |August |2.5-3.5| >6.0 | --- | --- | None | --- | None

 | |September |3.0-4.0| >6.0 | --- | --- | None | --- | None

 | |October |2.5-3.5| >6.0 | --- | --- | None | --- | None

 | |November |1.5-3.0| >6.0 | --- | --- | None | --- | None

 | |December |2.0-3.5| >6.0 | --- | --- | None | --- | None

 | | | | | | | | |
Black Hawk County, Iowa 487

Table 21.--Water Features--Continued

_____________________________________________________________________________________________________________________

 | | | Water table | Ponding | Flooding _______________________________________________________________________

 Map symbol |Hydro-| Months | Upper | Lower |Surface| Duration |Frequency | Duration | Frequency

 and soil name |logic | | limit | limit | water | | | |

 |group | | | | depth | | | | _____________________________________________________________________________________________________________________

 | | | Ft | Ft | Ft | | | |

 | | | | | | | | |

88: | | | | | | | | |

 Nevin---------------------| B | | | | | | | |

 | |January |3.0-5.5| >6.0 | --- | --- | None | --- | None

 | |February |2.5-5.0| >6.0 | --- | --- | None | --- | None

 | |March |1.5-4.0| >6.0 | --- | --- | None | Brief | Rare

 | |April |1.0-3.5| >6.0 | --- | --- | None | Brief | Rare

 | |May |1.5-4.0| >6.0 | --- | --- | None | Brief | Rare

 | |June |2.0-4.5| >6.0 | --- | --- | None | Brief | Rare

 | |July |3.0-5.5| >6.0 | --- | --- | None | Brief | Rare

 | |August |3.5-6.0| >6.0 | --- | --- | None | Brief | Rare

 | |September |4.0-6.5| >6.0 | --- | --- | None | Brief | Rare

 | |October |3.5-6.0| >6.0 | --- | --- | None | Brief | Rare

 | |November |2.5-5.0| >6.0 | --- | --- | None | Brief | Rare

 | |December |3.0-5.5| >6.0 | --- | --- | None | --- | None

 | | | | | | | | |

133: | | | | | | | | |

 Colo, occasionally flooded| B/D | | | | | | | |

 | |January |2.0-3.5| >6.0 | --- | --- | None | --- | None

 | |February |1.5-3.0|0.7-6.7| --- | --- | None | Long | Occasional

 | |March |0.5-2.0| >6.0 | --- | --- | None | Long | Occasional

 | |April |0.0-1.0| >6.0 | --- | --- | None | Long | Occasional

 | |May |0.5-1.5| >6.0 | --- | --- | None | Long | Occasional

 | |June |1.0-2.0| >6.0 | --- | --- | None | Long | Occasional

 | |July |2.0-3.0| >6.0 | --- | --- | None | Long | Occasional

 | |August |2.5-3.5| >6.0 | --- | --- | None | Long | Occasional

 | |September |3.0-4.0| >6.0 | --- | --- | None | Long | Occasional

 | |October |2.5-3.5| >6.0 | --- | --- | None | Long | Occasional

 | |November |1.5-3.0| >6.0 | --- | --- | None | Long | Occasional

 | |December |2.0-3.5| >6.0 | --- | --- | None | --- | None

 | | | | | | | | |

135: | | | | | | | | |

 Coland, occasionally | | | | | | | | |

 flooded------------------| B/D | | | | | | | |

 | |January |2.0-3.5| >6.0 | --- | --- | None | --- | None

 | |February |1.5-3.0|0.7-6.7| --- | --- | None | Long | Occasional

 | |March |0.5-2.0| >6.0 | --- | --- | None | Long | Occasional

 | |April |0.0-1.0| >6.0 | --- | --- | None | Long | Occasional

 | |May |0.5-1.5| >6.0 | --- | --- | None | Long | Occasional

 | |June |1.0-2.0| >6.0 | --- | --- | None | Long | Occasional

 | |July |2.0-3.0| >6.0 | --- | --- | None | Long | Occasional

 | |August |2.5-3.5| >6.0 | --- | --- | None | Long | Occasional

 | |September |3.0-4.0| >6.0 | --- | --- | None | Long | Occasional

 | |October |2.5-3.5| >6.0 | --- | --- | None | Long | Occasional

 | |November |1.5-3.0| >6.0 | --- | --- | None | Long | Occasional

 | |December |2.0-3.5| >6.0 | --- | --- | None | --- | None

 | | | | | | | | |

159: | | | | | | | | |

 Finchford-----------------| A | | | | | | | |

 | |Jan-Dec | --- | --- | --- | --- | None | --- | None

 | | | | | | | | |

159C: | | | | | | | | |

 Finchford-----------------| A | | | | | | | |

 | |Jan-Dec | --- | --- | --- | --- | None | --- | None

 | | | | | | | | |
488 Soil Survey of

Table 21.--Water Features--Continued

_____________________________________________________________________________________________________________________

 | | | Water table | Ponding | Flooding _______________________________________________________________________

 Map symbol |Hydro-| Months | Upper | Lower |Surface| Duration |Frequency | Duration | Frequency

 and soil name |logic | | limit | limit | water | | | |

 |group | | | | depth | | | | _____________________________________________________________________________________________________________________

 | | | Ft | Ft | Ft | | | |

 | | | | | | | | |

171B: | | | | | | | | |

 Bassett-------------------| B | | | | | | | |

 | |January |4.0-6.0| >6.0 | --- | --- | None | --- | None

 | |February |3.5-5.5| >6.0 | --- | --- | None | --- | None

 | |March |2.5-4.5| >6.0 | --- | --- | None | --- | None

 | |April |2.0-4.0| >6.0 | --- | --- | None | --- | None

 | |May |2.5-4.5| >6.0 | --- | --- | None | --- | None

 | |June |3.0-5.0| >6.0 | --- | --- | None | --- | None

 | |July |4.0-6.0| >6.0 | --- | --- | None | --- | None

 | |August |4.5-6.5| >6.0 | --- | --- | None | --- | None

 | |September |5.0-6.7| >6.0 | --- | --- | None | --- | None

 | |October |4.5-6.5| >6.0 | --- | --- | None | --- | None

 | |November |3.5-5.5| >6.0 | --- | --- | None | --- | None

 | |December |4.0-6.0| >6.0 | --- | --- | None | --- | None

 | | | | | | | | |

175: | | | | | | | | |

 Dickinson-----------------| B | | | | | | | |

 | |Jan-Dec | --- | --- | --- | --- | None | --- | None

 | | | | | | | | |

175B: | | | | | | | | |

 Dickinson-----------------| B | | | | | | | |

 | |Jan-Dec | --- | --- | --- | --- | None | --- | None

 | | | | | | | | |

177: | | | | | | | | |

 Saude---------------------| B | | | | | | | |

 | |Jan-Dec | --- | --- | --- | --- | None | --- | None

 | | | | | | | | |

177B: | | | | | | | | |

 Saude---------------------| B | | | | | | | |

 | |Jan-Dec | --- | --- | --- | --- | None | --- | None

 | | | | | | | | |

178: | | | | | | | | |

 Waukee--------------------| B | | | | | | | |

 | |Jan-Dec | --- | --- | --- | --- | None | --- | None

 | | | | | | | | |

178B: | | | | | | | | |

 Waukee--------------------| B | | | | | | | |

 | |Jan-Dec | --- | --- | --- | --- | None | --- | None

 | | | | | | | | |

184: | | | | | | | | |

 Klinger-------------------| B | | | | | | | |

 | |January |3.0-5.5| >6.0 | --- | --- | None | --- | None

 | |February |2.5-5.0| >6.0 | --- | --- | None | --- | None

 | |March |1.5-4.0| >6.0 | --- | --- | None | --- | None

 | |April |1.0-3.5| >6.0 | --- | --- | None | --- | None

 | |May |1.5-4.0| >6.0 | --- | --- | None | --- | None

 | |June |3.0-5.5| >6.0 | --- | --- | None | --- | None

 | |July |3.0-5.5| >6.0 | --- | --- | None | --- | None

 | |August |3.5-6.0| >6.0 | --- | --- | None | --- | None

 | |September |4.0-6.5| >6.0 | --- | --- | None | --- | None

 | |October |3.5-6.0| >6.0 | --- | --- | None | --- | None

 | |November |2.5-5.0| >6.0 | --- | --- | None | --- | None

 | |December |3.0-5.5| >6.0 | --- | --- | None | --- | None

 | | | | | | | | |
Black Hawk County, Iowa 489

Table 21.--Water Features--Continued

_____________________________________________________________________________________________________________________

 | | | Water table | Ponding | Flooding _______________________________________________________________________

 Map symbol |Hydro-| Months | Upper | Lower |Surface| Duration |Frequency | Duration | Frequency

 and soil name |logic | | limit | limit | water | | | |

 |group | | | | depth | | | | _____________________________________________________________________________________________________________________

 | | | Ft | Ft | Ft | | | |

 | | | | | | | | |

198B: | | | | | | | | |

 Floyd---------------------| B | | | | | | | |

 | |January |3.0-5.5| >6.0 | --- | --- | None | --- | None

 | |February |2.5-5.0| >6.0 | --- | --- | None | --- | None

 | |March |1.5-4.0| >6.0 | --- | --- | None | --- | None

 | |April |1.0-3.5| >6.0 | --- | --- | None | --- | None

 | |May |1.5-4.0| >6.0 | --- | --- | None | --- | None

 | |June |3.0-5.5| >6.0 | --- | --- | None | --- | None

 | |July |3.0-5.5| >6.0 | --- | --- | None | --- | None

 | |August |3.5-6.0| >6.0 | --- | --- | None | --- | None

 | |September |4.0-6.5| >6.0 | --- | --- | None | --- | None

 | |October |3.5-6.0| >6.0 | --- | --- | None | --- | None

 | |November |2.5-5.0| >6.0 | --- | --- | None | --- | None

 | |December |3.0-5.5| >6.0 | --- | --- | None | --- | None

 | | | | | | | | |

213B: | | | | | | | | |

 Rockton, 30 to 40 inches | | | | | | | | |

 to limestone-------------| B | | | | | | | |

 | |Jan-Dec | --- | --- | --- | --- | None | --- | None

 | | | | | | | | |

221: | | | | | | | | |

 Klossner------------------| A/D | | | | | | | |

 | |January | 0.0 | >6.0 | --- | --- | None | --- | None

 | |February | 0.0 | >6.0 | --- | --- | None | --- | None

 | |March | 0.0 | >6.0 | --- | --- | None | --- | None

 | |April | 0.0 | >6.0 | --- | --- | None | --- | None

 | |May | 0.0 | >6.0 | --- | --- | None | --- | None

 | |June | 0.0 | >6.0 | --- | --- | None | --- | None

 | |July | 0.0 | >6.0 | --- | --- | None | --- | None

 | |August | 0.0 | >6.0 | --- | --- | None | --- | None

 | |September | 0.0 | >6.0 | --- | --- | None | --- | None

 | |October | 0.0 | >6.0 | --- | --- | None | --- | None

 | |November | 0.0 | >6.0 | --- | --- | None | --- | None

 | |December | 0.0 | >6.0 | --- | --- | None | --- | None

 | | | | | | | | |

284: | | | | | | | | |

 Flagler-------------------| B | | | | | | | |

 | |Jan-Dec | --- | --- | --- | --- | None | --- | None

 | | | | | | | | |

284B: | | | | | | | | |

 Flagler-------------------| B | | | | | | | |

 | |Jan-Dec | --- | --- | --- | --- | None | --- | None

 | | | | | | | | |

290: | | | | | | | | |

 Dells---------------------| C | | | | | | | |

 | |January |3.0-5.5| >6.0 | --- | --- | None | --- | None

 | |February |2.5-5.0| >6.0 | --- | --- | None | --- | None

 | |March |1.5-4.0| >6.0 | --- | --- | None | --- | None

 | |April |1.0-3.5| >6.0 | --- | --- | None | --- | None

 | |May |1.5-4.0| >6.0 | --- | --- | None | --- | None

 | |June |3.0-5.5| >6.0 | --- | --- | None | --- | None

 | |July |3.0-5.5| >6.0 | --- | --- | None | --- | None

 | |August |3.5-6.0| >6.0 | --- | --- | None | --- | None

 | |September |4.0-6.5| >6.0 | --- | --- | None | --- | None

 | |October |3.5-6.0| >6.0 | --- | --- | None | --- | None

 | |November |2.5-5.0| >6.0 | --- | --- | None | --- | None

 | |December |3.0-5.5| >6.0 | --- | --- | None | --- | None

 | | | | | | | | |
490 Soil Survey of

Table 21.--Water Features--Continued

_____________________________________________________________________________________________________________________

 | | | Water table | Ponding | Flooding _______________________________________________________________________

 Map symbol |Hydro-| Months | Upper | Lower |Surface| Duration |Frequency | Duration | Frequency

 and soil name |logic | | limit | limit | water | | | |

 |group | | | | depth | | | | _____________________________________________________________________________________________________________________

 | | | Ft | Ft | Ft | | | |

 | | | | | | | | |

354: | | | | | | | | |

 Aquolls, ponded-----------| A/D | | | | | | | |

 | |January | 0.0 | >6.0 |0.7-1.3|Very long | Frequent | --- | None

 | |February | 0.0 | >6.0 |0.7-1.3|Very long | Frequent | --- | None

 | |March | 0.0 | >6.0 |1.2-1.8|Very long | Frequent | --- | None

 | |April | 0.0 | >6.0 |1.7-2.3|Very long | Frequent | --- | None

 | |May | 0.0 | >6.0 |1.7-2.3|Very long | Frequent | --- | None

 | |June | 0.0 | >6.0 |1.2-1.8|Very long | Frequent | --- | None

 | |July | 0.0 | >6.0 |0.7-1.3|Very long | Frequent | --- | None

 | |August | 0.0 | >6.0 |0.2-0.8|Very long | Frequent | --- | None

 | |September | 0.0 | >6.0 |0.2-0.8|Very long | Frequent | --- | None

 | |October | 0.0 | >6.0 |0.2-0.8|Very long | Frequent | --- | None

 | |November | 0.0 | >6.0 |0.7-1.3|Very long | Frequent | --- | None

 | |December | 0.0 | >6.0 |0.7-1.3|Very long | Frequent | --- | None

 | | | | | | | | |

377B: | | | | | | | | |

 Dinsdale------------------| B | | | | | | | |

 | |January |6.0-6.7| >6.0 | --- | --- | None | --- | None

 | |February |5.5-6.7| >6.0 | --- | --- | None | --- | None

 | |March |4.5-6.5| >6.0 | --- | --- | None | --- | None

 | |April |4.0-6.0| >6.0 | --- | --- | None | --- | None

 | |May |4.5-6.5| >6.0 | --- | --- | None | --- | None

 | |June |5.0-6.7| >6.0 | --- | --- | None | --- | None

 | |July |6.0-6.7| >6.0 | --- | --- | None | --- | None

 | |August |6.5-6.7| >6.0 | --- | --- | None | --- | None

 | |October |6.5-6.7| >6.0 | --- | --- | None | --- | None

 | |November |5.5-6.7| >6.0 | --- | --- | None | --- | None

 | |December |6.0-6.7| >6.0 | --- | --- | None | --- | None

 | | | | | | | | |

377C: | | | | | | | | |

 Dinsdale------------------| B | | | | | | | |

 | |January |6.0-6.7| >6.0 | --- | --- | None | --- | None

 | |February |5.5-6.7| >6.0 | --- | --- | None | --- | None

 | |March |4.5-6.5| >6.0 | --- | --- | None | --- | None

 | |April |4.0-6.0| >6.0 | --- | --- | None | --- | None

 | |May |4.5-6.5| >6.0 | --- | --- | None | --- | None

 | |June |5.0-6.7| >6.0 | --- | --- | None | --- | None

 | |July |6.0-6.7| >6.0 | --- | --- | None | --- | None

 | |August |6.5-6.7| >6.0 | --- | --- | None | --- | None

 | |October |6.5-6.7| >6.0 | --- | --- | None | --- | None

 | |November |5.5-6.7| >6.0 | --- | --- | None | --- | None

 | |December |6.0-6.7| >6.0 | --- | --- | None | --- | None

 | | | | | | | | |

377C2: | | | | | | | | |

 Dinsdale, moderately | | | | | | | | |

 eroded-------------------| B | | | | | | | |

 | |January |6.0-6.7| >6.0 | --- | --- | None | --- | None

 | |February |5.5-6.7| >6.0 | --- | --- | None | --- | None

 | |March |4.5-6.5| >6.0 | --- | --- | None | --- | None

 | |April |4.0-6.0| >6.0 | --- | --- | None | --- | None

 | |May |4.5-6.5| >6.0 | --- | --- | None | --- | None

 | |June |5.0-6.7| >6.0 | --- | --- | None | --- | None

 | |July |6.0-6.7| >6.0 | --- | --- | None | --- | None

 | |August |6.5-6.7| >6.0 | --- | --- | None | --- | None

 | |October |6.5-6.7| >6.0 | --- | --- | None | --- | None

 | |November |5.5-6.7| >6.0 | --- | --- | None | --- | None

 | |December |6.0-6.7| >6.0 | --- | --- | None | --- | None

 | | | | | | | | |
Black Hawk County, Iowa 491

Table 21.--Water Features--Continued

_____________________________________________________________________________________________________________________

 | | | Water table | Ponding | Flooding _______________________________________________________________________

 Map symbol |Hydro-| Months | Upper | Lower |Surface| Duration |Frequency | Duration | Frequency

 and soil name |logic | | limit | limit | water | | | |

 |group | | | | depth | | | | _____________________________________________________________________________________________________________________

 | | | Ft | Ft | Ft | | | |

 | | | | | | | | |

382: | | | | | | | | |

 Maxfield------------------| B/D | | | | | | | |

 | |January |2.0-3.5| >6.0 | --- | --- | None | --- | None

 | |February |1.5-3.0| >6.0 | --- | --- | None | --- | None

 | |March |0.5-2.0| >6.0 | --- | --- | None | --- | None

 | |April |0.0-1.0| >6.0 | --- | --- | None | --- | None

 | |May |0.5-1.5| >6.0 | --- | --- | None | --- | None

 | |June |1.0-2.0| >6.0 | --- | --- | None | --- | None

 | |July |2.0-3.0| >6.0 | --- | --- | None | --- | None

 | |August |2.5-3.5| >6.0 | --- | --- | None | --- | None

 | |September |3.0-4.0| >6.0 | --- | --- | None | --- | None

 | |October |2.5-3.5| >6.0 | --- | --- | None | --- | None

 | |November |1.5-3.0| >6.0 | --- | --- | None | --- | None

 | |December |2.0-3.5| >6.0 | --- | --- | None | --- | None

 | | | | | | | | |

391B: | | | | | | | | |

 Clyde---------------------| B/D | | | | | | | |

 | |January |2.0-3.5| >6.0 | --- | --- | None | --- | None

 | |February |1.5-3.0| >6.0 | --- | --- | None | --- | None

 | |March |0.5-2.0| >6.0 | --- | --- | None | --- | None

 | |April |0.0-1.0| >6.0 | --- | --- | None | --- | None

 | |May |0.5-1.5| >6.0 | --- | --- | None | --- | None

 | |June |1.0-2.0| >6.0 | --- | --- | None | --- | None

 | |July |2.0-3.0| >6.0 | --- | --- | None | --- | None

 | |August |2.5-3.5| >6.0 | --- | --- | None | --- | None

 | |September |3.0-4.0| >6.0 | --- | --- | None | --- | None

 | |October |2.5-3.5| >6.0 | --- | --- | None | --- | None

 | |November |1.5-3.0| >6.0 | --- | --- | None | --- | None

 | |December |2.0-3.5| >6.0 | --- | --- | None | --- | None

 | | | | | | | | |

 Floyd---------------------| B | | | | | | | |

 | |January |3.0-5.5| >6.0 | --- | --- | None | --- | None

 | |February |2.5-5.0| >6.0 | --- | --- | None | --- | None

 | |March |1.5-4.0| >6.0 | --- | --- | None | --- | None

 | |April |1.0-3.5| >6.0 | --- | --- | None | --- | None

 | |May |1.5-4.0| >6.0 | --- | --- | None | --- | None

 | |June |3.0-5.5| >6.0 | --- | --- | None | --- | None

 | |July |3.0-5.5| >6.0 | --- | --- | None | --- | None

 | |August |3.5-6.0| >6.0 | --- | --- | None | --- | None

 | |September |4.0-6.5| >6.0 | --- | --- | None | --- | None

 | |October |3.5-6.0| >6.0 | --- | --- | None | --- | None

 | |November |2.5-5.0| >6.0 | --- | --- | None | --- | None

 | |December |3.0-5.5| >6.0 | --- | --- | None | --- | None

 | | | | | | | | |

395B: | | | | | | | | |

 Marquis-------------------| B | | | | | | | |

 | |January |4.0-6.0| >6.0 | --- | --- | None | --- | None

 | |February |3.5-5.5| >6.0 | --- | --- | None | --- | None

 | |March |2.5-4.5| >6.0 | --- | --- | None | --- | None

 | |April |2.0-4.0| >6.0 | --- | --- | None | --- | None

 | |May |2.5-4.5| >6.0 | --- | --- | None | --- | None

 | |June |3.0-5.0| >6.0 | --- | --- | None | --- | None

 | |July |4.0-6.0| >6.0 | --- | --- | None | --- | None

 | |August |4.5-6.5| >6.0 | --- | --- | None | --- | None

 | |September |5.0-6.7| >6.0 | --- | --- | None | --- | None

 | |October |4.5-6.5| >6.0 | --- | --- | None | --- | None

 | |November |3.5-5.5| >6.0 | --- | --- | None | --- | None

 | |December |4.0-6.0| >6.0 | --- | --- | None | --- | None

 | | | | | | | | |
492 Soil Survey of

Table 21.--Water Features--Continued

_____________________________________________________________________________________________________________________

 | | | Water table | Ponding | Flooding _______________________________________________________________________

 Map symbol |Hydro-| Months | Upper | Lower |Surface| Duration |Frequency | Duration | Frequency

 and soil name |logic | | limit | limit | water | | | |

 |group | | | | depth | | | | _____________________________________________________________________________________________________________________

 | | | Ft | Ft | Ft | | | |

 | | | | | | | | |

398: | | | | | | | | |

 Tripoli-------------------| B/D | | | | | | | |

 | |January |2.0-3.5| >6.0 | --- | --- | None | --- | None

 | |February |1.5-3.0| >6.0 | --- | --- | None | --- | None

 | |March |0.5-2.0| >6.0 | --- | --- | None | --- | None

 | |April |0.0-1.0| >6.0 | --- | --- | None | --- | None

 | |May |0.5-1.5| >6.0 | --- | --- | None | --- | None

 | |June |1.0-2.0| >6.0 | --- | --- | None | --- | None

 | |July |2.0-3.0| >6.0 | --- | --- | None | --- | None

 | |August |2.5-3.5| >6.0 | --- | --- | None | --- | None

 | |September |3.0-4.0| >6.0 | --- | --- | None | --- | None

 | |October |2.5-3.5| >6.0 | --- | --- | None | --- | None

 | |November |1.5-3.0| >6.0 | --- | --- | None | --- | None

 | |December |2.0-3.5| >6.0 | --- | --- | None | --- | None

 | | | | | | | | |

399: | | | | | | | | |

 Readlyn-------------------| B | | | | | | | |

 | |January |3.0-5.5| >6.0 | --- | --- | None | --- | None

 | |February |2.5-5.0| >6.0 | --- | --- | None | --- | None

 | |March |1.5-4.0| >6.0 | --- | --- | None | --- | None

 | |April |1.0-3.5| >6.0 | --- | --- | None | --- | None

 | |May |1.5-4.0| >6.0 | --- | --- | None | --- | None

 | |June |3.0-5.5| >6.0 | --- | --- | None | --- | None

 | |July |3.0-5.5| >6.0 | --- | --- | None | --- | None

 | |August |3.5-6.0| >6.0 | --- | --- | None | --- | None

 | |September |4.0-6.5| >6.0 | --- | --- | None | --- | None

 | |October |3.5-6.0| >6.0 | --- | --- | None | --- | None

 | |November |2.5-5.0| >6.0 | --- | --- | None | --- | None

 | |December |3.0-5.5| >6.0 | --- | --- | None | --- | None

 | | | | | | | | |

408B: | | | | | | | | |

 Olin----------------------| B | | | | | | | |

 | |Jan-Dec | --- | --- | --- | --- | None | --- | None

 | | | | | | | | |

408C: | | | | | | | | |

 Olin----------------------| B | | | | | | | |

 | |Jan-Dec | --- | --- | --- | --- | None | --- | None

 | | | | | | | | |

412C: | | | | | | | | |

 Emeline-------------------| D | | | | | | | |

 | |Jan-Dec | --- | --- | --- | --- | None | --- | None

 | | | | | | | | |

426B: | | | | | | | | |

 Aredale-------------------| B | | | | | | | |

 | |Jan-Dec | --- | --- | --- | --- | None | --- | None

 | | | | | | | | |

426C: | | | | | | | | |

 Aredale-------------------| B | | | | | | | |

 | |Jan-Dec | --- | --- | --- | --- | None | --- | None

 | | | | | | | | |

426C2: | | | | | | | | |

 Aredale, moderately eroded| B | | | | | | | |

 | |Jan-Dec | --- | --- | --- | --- | None | --- | None

 | | | | | | | | |
Black Hawk County, Iowa 493

Table 21.--Water Features--Continued

_____________________________________________________________________________________________________________________

 | | | Water table | Ponding | Flooding _______________________________________________________________________

 Map symbol |Hydro-| Months | Upper | Lower |Surface| Duration |Frequency | Duration | Frequency

 and soil name |logic | | limit | limit | water | | | |

 |group | | | | depth | | | | _____________________________________________________________________________________________________________________

 | | | Ft | Ft | Ft | | | |

 | | | | | | | | |

468B: | | | | | | | | |

 Dunkerton-----------------| B | | | | | | | |

 | |January |3.0-5.5| >6.0 | --- | --- | None | --- | None

 | |February |2.5-5.0| >6.0 | --- | --- | None | --- | None

 | |March |1.5-4.0| >6.0 | --- | --- | None | --- | None

 | |April |1.0-3.5| >6.0 | --- | --- | None | --- | None

 | |May |1.5-4.0| >6.0 | --- | --- | None | --- | None

 | |June |3.0-5.5| >6.0 | --- | --- | None | --- | None

 | |July |3.0-5.5| >6.0 | --- | --- | None | --- | None

 | |August |3.5-6.0| >6.0 | --- | --- | None | --- | None

 | |September |4.0-6.5| >6.0 | --- | --- | None | --- | None

 | |October |3.5-6.0| >6.0 | --- | --- | None | --- | None

 | |November |2.5-5.0| >6.0 | --- | --- | None | --- | None

 | |December |3.0-5.5| >6.0 | --- | --- | None | --- | None

 | | | | | | | | |

468C: | | | | | | | | |

 Dunkerton-----------------| B | | | | | | | |

 | |January |3.0-5.5| >6.0 | --- | --- | None | --- | None

 | |February |2.5-5.0| >6.0 | --- | --- | None | --- | None

 | |March |1.5-4.0| >6.0 | --- | --- | None | --- | None

 | |April |1.0-3.5| >6.0 | --- | --- | None | --- | None

 | |May |1.5-4.0| >6.0 | --- | --- | None | --- | None

 | |June |3.0-5.5| >6.0 | --- | --- | None | --- | None

 | |July |3.0-5.5| >6.0 | --- | --- | None | --- | None

 | |August |3.5-6.0| >6.0 | --- | --- | None | --- | None

 | |September |4.0-6.5| >6.0 | --- | --- | None | --- | None

 | |October |3.5-6.0| >6.0 | --- | --- | None | --- | None

 | |November |2.5-5.0| >6.0 | --- | --- | None | --- | None

 | |December |3.0-5.5| >6.0 | --- | --- | None | --- | None

 | | | | | | | | |

471: | | | | | | | | |

 Oran----------------------| B | | | | | | | |

 | |January |3.0-5.5| >6.0 | --- | --- | None | --- | None

 | |February |2.5-5.0| >6.0 | --- | --- | None | --- | None

 | |March |1.5-4.0| >6.0 | --- | --- | None | --- | None

 | |April |1.0-3.5| >6.0 | --- | --- | None | --- | None

 | |May |1.5-4.0| >6.0 | --- | --- | None | --- | None

 | |June |3.0-5.5| >6.0 | --- | --- | None | --- | None

 | |July |3.0-5.5| >6.0 | --- | --- | None | --- | None

 | |August |3.5-6.0| >6.0 | --- | --- | None | --- | None

 | |September |4.0-6.5| >6.0 | --- | --- | None | --- | None

 | |October |3.5-6.0| >6.0 | --- | --- | None | --- | None

 | |November |2.5-5.0| >6.0 | --- | --- | None | --- | None

 | |December |3.0-5.5| >6.0 | --- | --- | None | --- | None

 | | | | | | | | |

485: | | | | | | | | |

 Spillville, occasionally | | | | | | | | |

 flooded------------------| B | | | | | | | |

 | |January |3.0-5.5| >6.0 | --- | --- | None | --- | None

 | |February |2.5-5.0| >6.0 | --- | --- | None | Long | Occasional

 | |March |1.5-4.0| >6.0 | --- | --- | None | Long | Occasional

 | |April |1.0-3.5| >6.0 | --- | --- | None | Long | Occasional

 | |May |1.5-4.0| >6.0 | --- | --- | None | Long | Occasional

 | |June |2.0-4.5| >6.0 | --- | --- | None | Long | Occasional

 | |July |3.0-5.5| >6.0 | --- | --- | None | Long | Occasional

 | |August |3.5-6.0| >6.0 | --- | --- | None | Long | Occasional

 | |September |4.0-6.5| >6.0 | --- | --- | None | Long | Occasional

 | |October |3.5-6.0| >6.0 | --- | --- | None | Long | Occasional

 | |November |2.5-5.0| >6.0 | --- | --- | None | Long | Occasional

 | |December |3.0-5.5| >6.0 | --- | --- | None | --- | None

 | | | | | | | | |
494 Soil Survey of

Table 21.--Water Features--Continued

_____________________________________________________________________________________________________________________

 | | | Water table | Ponding | Flooding _______________________________________________________________________

 Map symbol |Hydro-| Months | Upper | Lower |Surface| Duration |Frequency | Duration | Frequency

 and soil name |logic | | limit | limit | water | | | |

 |group | | | | depth | | | | _____________________________________________________________________________________________________________________

 | | | Ft | Ft | Ft | | | |

 | | | | | | | | |

585: | | | | | | | | |

 Spillville, occasionally | | | | | | | | |

 flooded------------------| B | | | | | | | |

 | |January |3.0-5.5| >6.0 | --- | --- | None | --- | None

 | |February |2.5-5.0| >6.0 | --- | --- | None | Long | Occasional

 | |March |1.5-4.0| >6.0 | --- | --- | None | Long | Occasional

 | |April |1.0-3.5| >6.0 | --- | --- | None | Long | Occasional

 | |May |1.5-4.0| >6.0 | --- | --- | None | Long | Occasional

 | |June |2.0-4.5| >6.0 | --- | --- | None | Long | Occasional

 | |July |3.0-5.5| >6.0 | --- | --- | None | Long | Occasional

 | |August |3.5-6.0| >6.0 | --- | --- | None | Long | Occasional

 | |September |4.0-6.5| >6.0 | --- | --- | None | Long | Occasional

 | |October |3.5-6.0| >6.0 | --- | --- | None | Long | Occasional

 | |November |2.5-5.0| >6.0 | --- | --- | None | Long | Occasional

 | |December |3.0-5.5| >6.0 | --- | --- | None | --- | None

 | | | | | | | | |

 Coland, occasionally | | | | | | | | |

 flooded------------------| B/D | | | | | | | |

 | |January |2.0-3.5| >6.0 | --- | --- | None | --- | None

 | |February |1.5-3.0|0.7-6.7| --- | --- | None | Long | Occasional

 | |March |0.5-2.0| >6.0 | --- | --- | None | Long | Occasional

 | |April |0.0-1.0| >6.0 | --- | --- | None | Long | Occasional

 | |May |0.5-1.5| >6.0 | --- | --- | None | Long | Occasional

 | |June |1.0-2.0| >6.0 | --- | --- | None | Long | Occasional

 | |July |2.0-3.0| >6.0 | --- | --- | None | Long | Occasional

 | |August |2.5-3.5| >6.0 | --- | --- | None | Long | Occasional

 | |September |3.0-4.0| >6.0 | --- | --- | None | Long | Occasional

 | |October |2.5-3.5| >6.0 | --- | --- | None | Long | Occasional

 | |November |1.5-3.0| >6.0 | --- | --- | None | Long | Occasional

 | |December |2.0-3.5| >6.0 | --- | --- | None | --- | None

 | | | | | | | | |

626: | | | | | | | | |

 Hayfield, 24 to 40 inches | | | | | | | | |

 to sand and gravel-------| B | | | | | | | |

 | |January |3.0-5.5| >6.0 | --- | --- | None | --- | None

 | |February |2.5-5.0| >6.0 | --- | --- | None | --- | None

 | |March |1.5-4.0| >6.0 | --- | --- | None | --- | None

 | |April |1.0-3.5| >6.0 | --- | --- | None | --- | None

 | |May |1.5-4.0| >6.0 | --- | --- | None | --- | None

 | |June |3.0-5.5| >6.0 | --- | --- | None | --- | None

 | |July |3.0-5.5| >6.0 | --- | --- | None | --- | None

 | |August |3.5-6.0| >6.0 | --- | --- | None | --- | None

 | |September |4.0-6.5| >6.0 | --- | --- | None | --- | None

 | |October |3.5-6.0| >6.0 | --- | --- | None | --- | None

 | |November |2.5-5.0| >6.0 | --- | --- | None | --- | None

 | |December |3.0-5.5| >6.0 | --- | --- | None | --- | None

 | | | | | | | | |

761: | | | | | | | | |

 Franklin------------------| B | | | | | | | |

 | |January |3.0-5.5| >6.0 | --- | --- | None | --- | None

 | |February |2.5-5.0| >6.0 | --- | --- | None | --- | None

 | |March |1.5-4.0| >6.0 | --- | --- | None | --- | None

 | |April |1.0-3.5| >6.0 | --- | --- | None | --- | None

 | |May |1.5-4.0| >6.0 | --- | --- | None | --- | None

 | |June |3.0-5.5| >6.0 | --- | --- | None | --- | None

 | |July |3.0-5.5| >6.0 | --- | --- | None | --- | None

 | |August |3.5-6.0| >6.0 | --- | --- | None | --- | None

 | |September |4.0-6.5| >6.0 | --- | --- | None | --- | None

 | |October |3.5-6.0| >6.0 | --- | --- | None | --- | None

 | |November |2.5-5.0| >6.0 | --- | --- | None | --- | None

 | |December |3.0-5.5| >6.0 | --- | --- | None | --- | None

 | | | | | | | | |
Black Hawk County, Iowa 495

Table 21.--Water Features--Continued

_____________________________________________________________________________________________________________________

 | | | Water table | Ponding | Flooding _______________________________________________________________________

 Map symbol |Hydro-| Months | Upper | Lower |Surface| Duration |Frequency | Duration | Frequency

 and soil name |logic | | limit | limit | water | | | |

 |group | | | | depth | | | | _____________________________________________________________________________________________________________________

 | | | Ft | Ft | Ft | | | |

 | | | | | | | | |

771B: | | | | | | | | |

 Waubeek-------------------| B | | | | | | | |

 | |January |6.0-6.7| >6.0 | --- | --- | None | --- | None

 | |February |5.5-6.7| >6.0 | --- | --- | None | --- | None

 | |March |4.5-6.5| >6.0 | --- | --- | None | --- | None

 | |April |4.0-6.0| >6.0 | --- | --- | None | --- | None

 | |May |4.5-6.5| >6.0 | --- | --- | None | --- | None

 | |June |5.0-6.7| >6.0 | --- | --- | None | --- | None

 | |July |6.0-6.7| >6.0 | --- | --- | None | --- | None

 | |August |6.5-6.7| >6.0 | --- | --- | None | --- | None

 | |October |6.5-6.7| >6.0 | --- | --- | None | --- | None

 | |November |5.5-6.7| >6.0 | --- | --- | None | --- | None

 | |December |6.0-6.7| >6.0 | --- | --- | None | --- | None

 | | | | | | | | |

775B: | | | | | | | | |

 Billett-------------------| B | | | | | | | |

 | |Jan-Dec | --- | --- | --- | --- | None | --- | None

 | | | | | | | | |

776C: | | | | | | | | |

 Lilah---------------------| A | | | | | | | |

 | |Jan-Dec | --- | --- | --- | --- | None | --- | None

 | | | | | | | | |

777: | | | | | | | | |

 Wapsie--------------------| B | | | | | | | |

 | |Jan-Dec | --- | --- | --- | --- | None | --- | None

 | | | | | | | | |

781B: | | | | | | | | |

 Lourdes-------------------| C | | | | | | | |

 | |January |6.0-6.7| >6.0 | --- | --- | None | --- | None

 | |February |5.5-6.7| >6.0 | --- | --- | None | --- | None

 | |March |4.5-6.5| >6.0 | --- | --- | None | --- | None

 | |April |4.0-6.0| >6.0 | --- | --- | None | --- | None

 | |May |4.5-6.5| >6.0 | --- | --- | None | --- | None

 | |June |5.0-6.7| >6.0 | --- | --- | None | --- | None

 | |July |6.0-6.7| >6.0 | --- | --- | None | --- | None

 | |August |6.5-6.7| >6.0 | --- | --- | None | --- | None

 | |October |6.5-6.7| >6.0 | --- | --- | None | --- | None

 | |November |5.5-6.7| >6.0 | --- | --- | None | --- | None

 | |December |6.0-6.7| >6.0 | --- | --- | None | --- | None

 | | | | | | | | |

781C2: | | | | | | | | |

 Lourdes, moderately eroded| C | | | | | | | |

 | |January |6.0-6.7| >6.0 | --- | --- | None | --- | None

 | |February |5.5-6.7| >6.0 | --- | --- | None | --- | None

 | |March |4.5-6.5| >6.0 | --- | --- | None | --- | None

 | |April |4.0-6.0| >6.0 | --- | --- | None | --- | None

 | |May |4.5-6.5| >6.0 | --- | --- | None | --- | None

 | |June |5.0-6.7| >6.0 | --- | --- | None | --- | None

 | |July |6.0-6.7| >6.0 | --- | --- | None | --- | None

 | |August |6.5-6.7| >6.0 | --- | --- | None | --- | None

 | |October |6.5-6.7| >6.0 | --- | --- | None | --- | None

 | |November |5.5-6.7| >6.0 | --- | --- | None | --- | None

 | |December |6.0-6.7| >6.0 | --- | --- | None | --- | None

 | | | | | | | | |
496 Soil Survey of

Table 21.--Water Features--Continued

_____________________________________________________________________________________________________________________

 | | | Water table | Ponding | Flooding _______________________________________________________________________

 Map symbol |Hydro-| Months | Upper | Lower |Surface| Duration |Frequency | Duration | Frequency

 and soil name |logic | | limit | limit | water | | | |

 |group | | | | depth | | | | _____________________________________________________________________________________________________________________

 | | | Ft | Ft | Ft | | | |

 | | | | | | | | |

782B: | | | | | | | | |

 Donnan--------------------| C | | | | | | | |

 | |January |3.0-5.5| >6.0 | --- | --- | None | --- | None

 | |February |2.5-5.0| >6.0 | --- | --- | None | --- | None

 | |March |1.5-4.0| >6.0 | --- | --- | None | --- | None

 | |April |1.0-3.5| >6.0 | --- | --- | None | --- | None

 | |May |1.5-4.0| >6.0 | --- | --- | None | --- | None

 | |June |3.0-5.5| >6.0 | --- | --- | None | --- | None

 | |July |3.0-5.5| >6.0 | --- | --- | None | --- | None

 | |August |3.5-6.0| >6.0 | --- | --- | None | --- | None

 | |September |4.0-6.5| >6.0 | --- | --- | None | --- | None

 | |October |3.5-6.0| >6.0 | --- | --- | None | --- | None

 | |November |2.5-5.0| >6.0 | --- | --- | None | --- | None

 | |December |3.0-5.5| >6.0 | --- | --- | None | --- | None

 | | | | | | | | |

798: | | | | | | | | |

 Protivin------------------| C | | | | | | | |

 | |January |3.0-5.5| >6.0 | --- | --- | None | --- | None

 | |February |2.5-5.0| >6.0 | --- | --- | None | --- | None

 | |March |1.5-4.0| >6.0 | --- | --- | None | --- | None

 | |April |1.0-3.5| >6.0 | --- | --- | None | --- | None

 | |May |1.5-4.0| >6.0 | --- | --- | None | --- | None

 | |June |3.0-5.5| >6.0 | --- | --- | None | --- | None

 | |July |3.0-5.5| >6.0 | --- | --- | None | --- | None

 | |August |3.5-6.0| >6.0 | --- | --- | None | --- | None

 | |September |4.0-6.5| >6.0 | --- | --- | None | --- | None

 | |October |3.5-6.0| >6.0 | --- | --- | None | --- | None

 | |November |2.5-5.0| >6.0 | --- | --- | None | --- | None

 | |December |3.0-5.5| >6.0 | --- | --- | None | --- | None

 | | | | | | | | |

809B: | | | | | | | | |

 Bertram-------------------| B | | | | | | | |

 | |Jan-Dec | --- | --- | --- | --- | None | --- | None

 | | | | | | | | |

877B: | | | | | | | | |

 Dinsmore------------------| B | | | | | | | |

 | |January |6.0-6.7| >6.0 | --- | --- | None | --- | None

 | |February |5.5-6.7| >6.0 | --- | --- | None | --- | None

 | |March |4.5-6.5| >6.0 | --- | --- | None | --- | None

 | |April |4.0-6.0| >6.0 | --- | --- | None | --- | None

 | |May |4.5-6.5| >6.0 | --- | --- | None | --- | None

 | |June |5.0-6.7| >6.0 | --- | --- | None | --- | None

 | |July |6.0-6.7| >6.0 | --- | --- | None | --- | None

 | |August |6.5-6.7| >6.0 | --- | --- | None | --- | None

 | |October |6.5-6.7| >6.0 | --- | --- | None | --- | None

 | |November |5.5-6.7| >6.0 | --- | --- | None | --- | None

 | |December |6.0-6.7| >6.0 | --- | --- | None | --- | None

 | | | | | | | | |

884: | | | | | | | | |

 Klingmore-----------------| B | | | | | | | |

 | |January |3.0-5.5| >6.0 | --- | --- | None | --- | None

 | |February |2.5-5.0| >6.0 | --- | --- | None | --- | None

 | |March |1.5-4.0| >6.0 | --- | --- | None | --- | None

 | |April |1.0-3.5| >6.0 | --- | --- | None | --- | None

 | |May |1.5-4.0| >6.0 | --- | --- | None | --- | None

 | |June |3.0-5.5| >6.0 | --- | --- | None | --- | None

 | |July |3.0-5.5| >6.0 | --- | --- | None | --- | None

 | |August |3.5-6.0| >6.0 | --- | --- | None | --- | None

 | |September |4.0-6.5| >6.0 | --- | --- | None | --- | None

 | |October |3.5-6.0| >6.0 | --- | --- | None | --- | None

 | |November |2.5-5.0| >6.0 | --- | --- | None | --- | None

 | |December |3.0-5.5| >6.0 | --- | --- | None | --- | None

 | | | | | | | | |
Black Hawk County, Iowa 497

Table 21.--Water Features--Continued

_____________________________________________________________________________________________________________________

 | | | Water table | Ponding | Flooding _______________________________________________________________________

 Map symbol |Hydro-| Months | Upper | Lower |Surface| Duration |Frequency | Duration | Frequency

 and soil name |logic | | limit | limit | water | | | |

 |group | | | | depth | | | | _____________________________________________________________________________________________________________________

 | | | Ft | Ft | Ft | | | |

 | | | | | | | | |

911B: | | | | | | | | |

 Colo----------------------| B/D | | | | | | | |

 | |January |2.0-3.5| >6.0 | --- | --- | None | --- | None

 | |February |1.5-3.0| >6.0 | --- | --- | None | --- | None

 | |March |0.5-2.0| >6.0 | --- | --- | None | --- | None

 | |April |0.0-1.0| >6.0 | --- | --- | None | --- | None

 | |May |0.5-1.5| >6.0 | --- | --- | None | --- | None

 | |June |1.0-2.0| >6.0 | --- | --- | None | --- | None

 | |July |2.0-3.0| >6.0 | --- | --- | None | --- | None

 | |August |2.5-3.5| >6.0 | --- | --- | None | --- | None

 | |September |3.0-4.0| >6.0 | --- | --- | None | --- | None

 | |October |2.5-3.5| >6.0 | --- | --- | None | --- | None

 | |November |1.5-3.0| >6.0 | --- | --- | None | --- | None

 | |December |2.0-3.5| >6.0 | --- | --- | None | --- | None

 | | | | | | | | |

 Ely-----------------------| B | | | | | | | |

 | |January |3.0-5.5| >6.0 | --- | --- | None | --- | None

 | |February |2.5-5.0| >6.0 | --- | --- | None | --- | None

 | |March |1.5-4.0| >6.0 | --- | --- | None | --- | None

 | |April |1.0-3.5| >6.0 | --- | --- | None | --- | None

 | |May |1.5-4.0| >6.0 | --- | --- | None | --- | None

 | |June |3.0-5.5| >6.0 | --- | --- | None | --- | None

 | |July |3.0-5.5| >6.0 | --- | --- | None | --- | None

 | |August |3.5-6.0| >6.0 | --- | --- | None | --- | None

 | |September |4.0-6.5| >6.0 | --- | --- | None | --- | None

 | |October |3.5-6.0| >6.0 | --- | --- | None | --- | None

 | |November |2.5-5.0| >6.0 | --- | --- | None | --- | None

 | |December |3.0-5.5| >6.0 | --- | --- | None | --- | None

 | | | | | | | | |

933: | | | | | | | | |

 Sawmill, occasionally | | | | | | | | |

 flooded------------------| B/D | | | | | | | |

 | |January |2.0-3.5| >6.0 | --- | --- | None | --- | None

 | |February |1.5-3.0|0.7-6.7| --- | --- | None | Long | Occasional

 | |March |0.5-2.0| >6.0 | --- | --- | None | Long | Occasional

 | |April |0.0-1.0| >6.0 | --- | --- | None | Long | Occasional

 | |May |0.5-1.5| >6.0 | --- | --- | None | Long | Occasional

 | |June |1.0-2.0| >6.0 | --- | --- | None | Long | Occasional

 | |July |2.0-3.0| >6.0 | --- | --- | None | Long | Occasional

 | |August |2.5-3.5| >6.0 | --- | --- | None | Long | Occasional

 | |September |3.0-4.0| >6.0 | --- | --- | None | Long | Occasional

 | |October |2.5-3.5| >6.0 | --- | --- | None | Long | Occasional

 | |November |1.5-3.0| >6.0 | --- | --- | None | Long | Occasional

 | |December |2.0-3.5| >6.0 | --- | --- | None | --- | None

 | | | | | | | | |

982: | | | | | | | | |

 Maxmore-------------------| B/D | | | | | | | |

 | |January |2.0-3.5| >6.0 | --- | --- | None | --- | None

 | |February |1.5-3.0| >6.0 | --- | --- | None | --- | None

 | |March |0.5-2.0| >6.0 | --- | --- | None | --- | None

 | |April |0.0-1.0| >6.0 | --- | --- | None | --- | None

 | |May |0.5-1.5| >6.0 | --- | --- | None | --- | None

 | |June |1.0-2.0| >6.0 | --- | --- | None | --- | None

 | |July |2.0-3.0| >6.0 | --- | --- | None | --- | None

 | |August |2.5-3.5| >6.0 | --- | --- | None | --- | None

 | |September |3.0-4.0| >6.0 | --- | --- | None | --- | None

 | |October |2.5-3.5| >6.0 | --- | --- | None | --- | None

 | |November |1.5-3.0| >6.0 | --- | --- | None | --- | None

 | |December |2.0-3.5| >6.0 | --- | --- | None | --- | None

 | | | | | | | | |
498 Soil Survey of

Table 21.--Water Features--Continued

_____________________________________________________________________________________________________________________

 | | | Water table | Ponding | Flooding _______________________________________________________________________

 Map symbol |Hydro-| Months | Upper | Lower |Surface| Duration |Frequency | Duration | Frequency

 and soil name |logic | | limit | limit | water | | | |

 |group | | | | depth | | | | _____________________________________________________________________________________________________________________

 | | | Ft | Ft | Ft | | | |

 | | | | | | | | |

1152: | | | | | | | | |

 Marshan, 24 to 40 inches | | | | | | | | |

 to sand and gravel-------| B/D | | | | | | | |

 | |January |2.0-3.5| >6.0 | --- | --- | None | --- | None

 | |February |1.5-3.0| >6.0 | --- | --- | None | --- | None

 | |March |0.5-2.0| >6.0 | --- | --- | None | --- | None

 | |April |0.0-1.0| >6.0 | --- | --- | None | --- | None

 | |May |0.5-1.5| >6.0 | --- | --- | None | --- | None

 | |June |1.0-2.0| >6.0 | --- | --- | None | --- | None

 | |July |2.0-3.0| >6.0 | --- | --- | None | --- | None

 | |August |2.5-3.5| >6.0 | --- | --- | None | --- | None

 | |September |3.0-4.0| >6.0 | --- | --- | None | --- | None

 | |October |2.5-3.5| >6.0 | --- | --- | None | --- | None

 | |November |1.5-3.0| >6.0 | --- | --- | None | --- | None

 | |December |2.0-3.5| >6.0 | --- | --- | None | --- | None

 | | | | | | | | |

1226: | | | | | | | | |

 Lawler, 24 to 40 inches to| | | | | | | | |

 sand and gravel----------| B | | | | | | | |

 | |January |3.0-5.5| >6.0 | --- | --- | None | --- | None

 | |February |2.5-5.0| >6.0 | --- | --- | None | --- | None

 | |March |1.5-4.0| >6.0 | --- | --- | None | --- | None

 | |April |1.0-3.5| >6.0 | --- | --- | None | --- | None

 | |May |1.5-4.0| >6.0 | --- | --- | None | --- | None

 | |June |3.0-5.5| >6.0 | --- | --- | None | --- | None

 | |July |3.0-5.5| >6.0 | --- | --- | None | --- | None

 | |August |3.5-6.0| >6.0 | --- | --- | None | --- | None

 | |September |4.0-6.5| >6.0 | --- | --- | None | --- | None

 | |October |3.5-6.0| >6.0 | --- | --- | None | --- | None

 | |November |2.5-5.0| >6.0 | --- | --- | None | --- | None

 | |December |3.0-5.5| >6.0 | --- | --- | None | --- | None

 | | | | | | | | |

1285G: | | | | | | | | |

 Burkhardt-----------------| B | | | | | | | |

 | |Jan-Dec | --- | --- | --- | --- | None | --- | None

 | | | | | | | | |

 Bassett-------------------| --- | | | | | | | |

 | |January |4.0-6.0| >6.0 | --- | --- | None | --- | None

 | |February |3.5-5.5| >6.0 | --- | --- | None | --- | None

 | |March |2.5-4.5| >6.0 | --- | --- | None | --- | None

 | |April |2.0-4.0| >6.0 | --- | --- | None | --- | None

 | |May |2.5-4.5| >6.0 | --- | --- | None | --- | None

 | |June |3.0-5.0| >6.0 | --- | --- | None | --- | None

 | |July |4.0-6.0| >6.0 | --- | --- | None | --- | None

 | |August |4.5-6.5| >6.0 | --- | --- | None | --- | None

 | |September |5.0-6.7| >6.0 | --- | --- | None | --- | None

 | |October |4.5-6.5| >6.0 | --- | --- | None | --- | None

 | |November |3.5-5.5| >6.0 | --- | --- | None | --- | None

 | |December |4.0-6.0| >6.0 | --- | --- | None | --- | None

 | | | | | | | | |

 Chelsea-------------------| --- | | | | | | | |

 | |Jan-Dec | --- | --- | --- | --- | None | --- | None

 | | | | | | | | |
Black Hawk County, Iowa 499

Table 21.--Water Features--Continued

_____________________________________________________________________________________________________________________

 | | | Water table | Ponding | Flooding _______________________________________________________________________

 Map symbol |Hydro-| Months | Upper | Lower |Surface| Duration |Frequency | Duration | Frequency

 and soil name |logic | | limit | limit | water | | | |

 |group | | | | depth | | | | _____________________________________________________________________________________________________________________

 | | | Ft | Ft | Ft | | | |

 | | | | | | | | |

1585: | | | | | | | | |

 Spillville, frequently | | | | | | | | |

 flooded------------------| B | | | | | | | |

 | |January |3.0-5.5| >6.0 | --- | --- | None | --- | None

 | |February |2.5-5.0| >6.0 | --- | --- | None | Long | Frequent

 | |March |1.5-4.0| >6.0 | --- | --- | None | Long | Frequent

 | |April |1.0-3.5| >6.0 | --- | --- | None | Long | Frequent

 | |May |1.5-4.0| >6.0 | --- | --- | None | Long | Frequent

 | |June |2.0-4.5| >6.0 | --- | --- | None | Long | Frequent

 | |July |3.0-5.5| >6.0 | --- | --- | None | Long | Frequent

 | |August |3.5-6.0| >6.0 | --- | --- | None | Long | Frequent

 | |September |4.0-6.5| >6.0 | --- | --- | None | Long | Frequent

 | |October |3.5-6.0| >6.0 | --- | --- | None | Long | Frequent

 | |November |2.5-5.0| >6.0 | --- | --- | None | Long | Frequent

 | |December |3.0-5.5| >6.0 | --- | --- | None | --- | None

 | | | | | | | | |

 Coland, frequently flooded| B/D | | | | | | | |

 | |January |2.0-3.5| >6.0 | --- | --- | None | --- | None

 | |February |1.5-3.0|0.7-6.7| --- | --- | None | Long | Frequent

 | |March |0.5-2.0| >6.0 | --- | --- | None | Long | Frequent

 | |April |0.0-1.0| >6.0 | --- | --- | None | Long | Frequent

 | |May |0.5-1.5| >6.0 | --- | --- | None | Long | Frequent

 | |June |1.0-2.0| >6.0 | --- | --- | None | Long | Frequent

 | |July |2.0-3.0| >6.0 | --- | --- | None | Long | Frequent

 | |August |2.5-3.5| >6.0 | --- | --- | None | Long | Frequent

 | |September |3.0-4.0| >6.0 | --- | --- | None | Long | Frequent

 | |October |2.5-3.5| >6.0 | --- | --- | None | Long | Frequent

 | |November |1.5-3.0| >6.0 | --- | --- | None | Long | Frequent

 | |December |2.0-3.5| >6.0 | --- | --- | None | --- | None

 | | | | | | | | |

 Aquolls, ponded-----------| A/D | | | | | | | |

 | |January | 0.0 | >6.0 |0.7-1.3|Very long | Frequent | --- | None

 | |February | 0.0 | >6.0 |0.7-1.3|Very long | Frequent | --- | None

 | |March | 0.0 | >6.0 |1.2-1.8|Very long | Frequent | --- | None

 | |April | 0.0 | >6.0 |1.7-2.3|Very long | Frequent | --- | None

 | |May | 0.0 | >6.0 |1.7-2.3|Very long | Frequent | --- | None

 | |June | 0.0 | >6.0 |1.2-1.8|Very long | Frequent | --- | None

 | |July | 0.0 | >6.0 |0.7-1.3|Very long | Frequent | --- | None

 | |August | 0.0 | >6.0 |0.2-0.8|Very long | Frequent | --- | None

 | |September | 0.0 | >6.0 |0.2-0.8|Very long | Frequent | --- | None

 | |October | 0.0 | >6.0 |0.2-0.8|Very long | Frequent | --- | None

 | |November | 0.0 | >6.0 |0.7-1.3|Very long | Frequent | --- | None

 | |December | 0.0 | >6.0 |0.7-1.3|Very long | Frequent | --- | None

 | | | | | | | | |

1586: | | | | | | | | |

 Sigglekov, frequently | | | | | | | | |

 flooded------------------| A | | | | | | | |

 | |January |3.0-5.5| >6.0 | --- | --- | None | --- | None

 | |February |2.5-5.0| >6.0 | --- | --- | None | Long | Frequent

 | |March |1.5-4.0| >6.0 | --- | --- | None | Long | Frequent

 | |April |1.0-3.5| >6.0 | --- | --- | None | Long | Frequent

 | |May |1.5-4.0| >6.0 | --- | --- | None | Long | Frequent

 | |June |2.0-4.5| >6.0 | --- | --- | None | Long | Frequent

 | |July |3.0-5.5| >6.0 | --- | --- | None | Long | Frequent

 | |August |3.5-6.0| >6.0 | --- | --- | None | Long | Frequent

 | |September |4.0-6.5| >6.0 | --- | --- | None | Long | Frequent

 | |October |3.5-6.0| >6.0 | --- | --- | None | Long | Frequent

 | |November |2.5-5.0| >6.0 | --- | --- | None | Long | Frequent

 | |December |3.0-5.5| >6.0 | --- | --- | None | --- | None

 | | | | | | | | |
500 Soil Survey of

Table 21.--Water Features--Continued

_____________________________________________________________________________________________________________________

 | | | Water table | Ponding | Flooding _______________________________________________________________________

 Map symbol |Hydro-| Months | Upper | Lower |Surface| Duration |Frequency | Duration | Frequency

 and soil name |logic | | limit | limit | water | | | |

 |group | | | | depth | | | | _____________________________________________________________________________________________________________________

 | | | Ft | Ft | Ft | | | |

 | | | | | | | | |

1586: | | | | | | | | |

 Fluvaquents, frequently | | | | | | | | |

 flooded------------------| B | | | | | | | |

 | |January |2.0-3.5| >6.0 | --- | --- | None | --- | None

 | |February |1.5-3.0| >6.0 | --- | --- | None | Long | Frequent

 | |March |0.5-2.0| >6.0 | --- | --- | None | Long | Frequent

 | |April |0.0-1.0| >6.0 | --- | --- | None | Long | Frequent

 | |May |0.5-1.5| >6.0 | --- | --- | None | Long | Frequent

 | |June |1.0-2.0| >6.0 | --- | --- | None | Long | Frequent

 | |July |2.0-3.0| >6.0 | --- | --- | None | Long | Frequent

 | |August |2.5-3.5| >6.0 | --- | --- | None | Long | Frequent

 | |September |3.0-4.0| >6.0 | --- | --- | None | Long | Frequent

 | |October |2.5-3.5| >6.0 | --- | --- | None | Long | Frequent

 | |November |1.5-3.0| >6.0 | --- | --- | None | Long | Frequent

 | |December |2.0-3.5| >6.0 | --- | --- | None | --- | None

 | | | | | | | | |

 Aquents, ponded-----------| A/D | | | | | | | |

 | |January | 0.0 | >6.0 |0.7-1.3|Very long | Frequent | --- | None

 | |February | 0.0 | >6.0 |0.7-1.3|Very long | Frequent | --- | None

 | |March | 0.0 | >6.0 |1.2-1.8|Very long | Frequent | --- | None

 | |April | 0.0 | >6.0 |1.7-2.3|Very long | Frequent | --- | None

 | |May | 0.0 | >6.0 |1.7-2.3|Very long | Frequent | --- | None

 | |June | 0.0 | >6.0 |1.2-1.8|Very long | Frequent | --- | None

 | |July | 0.0 | >6.0 |0.7-1.3|Very long | Frequent | --- | None

 | |August | 0.0 | >6.0 |0.2-0.8|Very long | Frequent | --- | None

 | |September | 0.0 | >6.0 |0.2-0.8|Very long | Frequent | --- | None

 | |October | 0.0 | >6.0 |0.2-0.8|Very long | Frequent | --- | None

 | |November | 0.0 | >6.0 |0.7-1.3|Very long | Frequent | --- | None

 | |December | 0.0 | >6.0 |0.7-1.3|Very long | Frequent | --- | None

 | | | | | | | | |

4000. | | | | | | | | |

 Urban land | | | | | | | | |

 | | | | | | | | |

4007: | | | | | | | | |

 Wiota---------------------| B | | | | | | | |

 | |Jan-Dec | --- | --- | --- | --- | None | --- | None

 | | | | | | | | |

 Urban land. | | | | | | | | |

 | | | | | | | | |

4041: | | | | | | | | |

 Sparta--------------------| A | | | | | | | |

 | |Jan-Dec | --- | --- | --- | --- | None | --- | None

 | | | | | | | | |

 Urban land. | | | | | | | | |

 | | | | | | | | |

4041B: | | | | | | | | |

 Sparta--------------------| A | | | | | | | |

 | |Jan-Dec | --- | --- | --- | --- | None | --- | None

 | | | | | | | | |

 Urban land. | | | | | | | | |

 | | | | | | | | |

4041C: | | | | | | | | |

 Sparta--------------------| A | | | | | | | |

 | |Jan-Dec | --- | --- | --- | --- | None | --- | None

 | | | | | | | | |

 Urban land. | | | | | | | | |

 | | | | | | | | |

4041D: | | | | | | | | |

 Sparta--------------------| A | | | | | | | |

 | |Jan-Dec | --- | --- | --- | --- | None | --- | None

 | | | | | | | | |
Black Hawk County, Iowa 501

Table 21.--Water Features--Continued

_____________________________________________________________________________________________________________________

 | | | Water table | Ponding | Flooding _______________________________________________________________________

 Map symbol |Hydro-| Months | Upper | Lower |Surface| Duration |Frequency | Duration | Frequency

 and soil name |logic | | limit | limit | water | | | |

 |group | | | | depth | | | | _____________________________________________________________________________________________________________________

 | | | Ft | Ft | Ft | | | |

 | | | | | | | | |

4041D: | | | | | | | | |

 Urban land. | | | | | | | | |

 | | | | | | | | |

4063B: | | | | | | | | |

 Chelsea-------------------| A | | | | | | | |

 | |Jan-Dec | --- | --- | --- | --- | None | --- | None

 | | | | | | | | |

 Urban land. | | | | | | | | |

 | | | | | | | | |

4063C: | | | | | | | | |

 Chelsea-------------------| A | | | | | | | |

 | |Jan-Dec | --- | --- | --- | --- | None | --- | None

 | | | | | | | | |

 Urban land. | | | | | | | | |

 | | | | | | | | |

4063D: | | | | | | | | |

 Chelsea-------------------| A | | | | | | | |

 | |Jan-Dec | --- | --- | --- | --- | None | --- | None

 | | | | | | | | |

 Urban land. | | | | | | | | |

 | | | | | | | | |

4083B: | | | | | | | | |

 Kenyon--------------------| B | | | | | | | |

 | |January |6.0-6.7| >6.0 | --- | --- | None | --- | None

 | |February |5.5-6.7| >6.0 | --- | --- | None | --- | None

 | |March |4.5-6.5| >6.0 | --- | --- | None | --- | None

 | |April |4.0-6.0| >6.0 | --- | --- | None | --- | None

 | |May |4.5-6.5| >6.0 | --- | --- | None | --- | None

 | |June |5.0-6.7| >6.0 | --- | --- | None | --- | None

 | |July |6.0-6.7| >6.0 | --- | --- | None | --- | None

 | |August |6.5-6.7| >6.0 | --- | --- | None | --- | None

 | |October |6.5-6.7| >6.0 | --- | --- | None | --- | None

 | |November |5.5-6.7| >6.0 | --- | --- | None | --- | None

 | |December |6.0-6.7| >6.0 | --- | --- | None | --- | None

 | | | | | | | | |

 Urban land. | | | | | | | | |

 | | | | | | | | |

4083C: | | | | | | | | |

 Kenyon--------------------| B | | | | | | | |

 | |January |6.0-6.7| >6.0 | --- | --- | None | --- | None

 | |February |5.5-6.7| >6.0 | --- | --- | None | --- | None

 | |March |4.5-6.5| >6.0 | --- | --- | None | --- | None

 | |April |4.0-6.0| >6.0 | --- | --- | None | --- | None

 | |May |4.5-6.5| >6.0 | --- | --- | None | --- | None

 | |June |5.0-6.7| >6.0 | --- | --- | None | --- | None

 | |July |6.0-6.7| >6.0 | --- | --- | None | --- | None

 | |August |6.5-6.7| >6.0 | --- | --- | None | --- | None

 | |October |6.5-6.7| >6.0 | --- | --- | None | --- | None

 | |November |5.5-6.7| >6.0 | --- | --- | None | --- | None

 | |December |6.0-6.7| >6.0 | --- | --- | None | --- | None

 | | | | | | | | |

 Urban land. | | | | | | | | |

 | | | | | | | | |
502 Soil Survey of

Table 21.--Water Features--Continued

_____________________________________________________________________________________________________________________

 | | | Water table | Ponding | Flooding _______________________________________________________________________

 Map symbol |Hydro-| Months | Upper | Lower |Surface| Duration |Frequency | Duration | Frequency

 and soil name |logic | | limit | limit | water | | | |

 |group | | | | depth | | | | _____________________________________________________________________________________________________________________

 | | | Ft | Ft | Ft | | | |

 | | | | | | | | |

4083D: | | | | | | | | |

 Kenyon--------------------| B | | | | | | | |

 | |January |6.0-6.7| >6.0 | --- | --- | None | --- | None

 | |February |5.5-6.7| >6.0 | --- | --- | None | --- | None

 | |March |4.5-6.5| >6.0 | --- | --- | None | --- | None

 | |April |4.0-6.0| >6.0 | --- | --- | None | --- | None

 | |May |4.5-6.5| >6.0 | --- | --- | None | --- | None

 | |June |5.0-6.7| >6.0 | --- | --- | None | --- | None

 | |July |6.0-6.7| >6.0 | --- | --- | None | --- | None

 | |August |6.5-6.7| >6.0 | --- | --- | None | --- | None

 | |October |6.5-6.7| >6.0 | --- | --- | None | --- | None

 | |November |5.5-6.7| >6.0 | --- | --- | None | --- | None

 | |December |6.0-6.7| >6.0 | --- | --- | None | --- | None

 | | | | | | | | |

 Urban land. | | | | | | | | |

 | | | | | | | | |

4084: | | | | | | | | |

 Clyde---------------------| B/D | | | | | | | |

 | |January |2.0-3.5| >6.0 | --- | --- | None | --- | None

 | |February |1.5-3.0| >6.0 | --- | --- | None | --- | None

 | |March |0.5-2.0| >6.0 | --- | --- | None | --- | None

 | |April |0.0-1.0| >6.0 | --- | --- | None | --- | None

 | |May |0.5-1.5| >6.0 | --- | --- | None | --- | None

 | |June |1.0-2.0| >6.0 | --- | --- | None | --- | None

 | |July |2.0-3.0| >6.0 | --- | --- | None | --- | None

 | |August |2.5-3.5| >6.0 | --- | --- | None | --- | None

 | |September |3.0-4.0| >6.0 | --- | --- | None | --- | None

 | |October |2.5-3.5| >6.0 | --- | --- | None | --- | None

 | |November |1.5-3.0| >6.0 | --- | --- | None | --- | None

 | |December |2.0-3.5| >6.0 | --- | --- | None | --- | None

 | | | | | | | | |

 Urban land. | | | | | | | | |

 | | | | | | | | |

4088: | | | | | | | | |

 Nevin---------------------| B | | | | | | | |

 | |January |3.0-5.5| >6.0 | --- | --- | None | --- | None

 | |February |2.5-5.0| >6.0 | --- | --- | None | --- | None

 | |March |1.5-4.0| >6.0 | --- | --- | None | Brief | Rare

 | |April |1.0-3.5| >6.0 | --- | --- | None | Brief | Rare

 | |May |1.5-4.0| >6.0 | --- | --- | None | Brief | Rare

 | |June |2.0-4.5| >6.0 | --- | --- | None | Brief | Rare

 | |July |3.0-5.5| >6.0 | --- | --- | None | Brief | Rare

 | |August |3.5-6.0| >6.0 | --- | --- | None | Brief | Rare

 | |September |4.0-6.5| >6.0 | --- | --- | None | Brief | Rare

 | |October |3.5-6.0| >6.0 | --- | --- | None | Brief | Rare

 | |November |2.5-5.0| >6.0 | --- | --- | None | Brief | Rare

 | |December |3.0-5.5| >6.0 | --- | --- | None | --- | None

 | | | | | | | | |

 Urban land. | | | | | | | | |

 | | | | | | | | |
Black Hawk County, Iowa 503

Table 21.--Water Features--Continued

_____________________________________________________________________________________________________________________

 | | | Water table | Ponding | Flooding _______________________________________________________________________

 Map symbol |Hydro-| Months | Upper | Lower |Surface| Duration |Frequency | Duration | Frequency

 and soil name |logic | | limit | limit | water | | | |

 |group | | | | depth | | | | _____________________________________________________________________________________________________________________

 | | | Ft | Ft | Ft | | | |

 | | | | | | | | |

4133: | | | | | | | | |

 Colo, occasionally flooded| B/D | | | | | | | |

 | |January |2.0-3.5| >6.0 | --- | --- | None | --- | None

 | |February |1.5-3.0|0.7-6.7| --- | --- | None | Long | Occasional

 | |March |0.5-2.0| >6.0 | --- | --- | None | Long | Occasional

 | |April |0.0-1.0| >6.0 | --- | --- | None | Long | Occasional

 | |May |0.5-1.5| >6.0 | --- | --- | None | Long | Occasional

 | |June |1.0-2.0| >6.0 | --- | --- | None | Long | Occasional

 | |July |2.0-3.0| >6.0 | --- | --- | None | Long | Occasional

 | |August |2.5-3.5| >6.0 | --- | --- | None | Long | Occasional

 | |September |3.0-4.0| >6.0 | --- | --- | None | Long | Occasional

 | |October |2.5-3.5| >6.0 | --- | --- | None | Long | Occasional

 | |November |1.5-3.0| >6.0 | --- | --- | None | Long | Occasional

 | |December |2.0-3.5| >6.0 | --- | --- | None | --- | None

 | | | | | | | | |

 Urban land. | | | | | | | | |

 | | | | | | | | |

4135: | | | | | | | | |

 Coland, occasionally | | | | | | | | |

 flooded------------------| B/D | | | | | | | |

 | |January |2.0-3.5| >6.0 | --- | --- | None | --- | None

 | |February |1.5-3.0|0.7-6.7| --- | --- | None | Long | Occasional

 | |March |0.5-2.0| >6.0 | --- | --- | None | Long | Occasional

 | |April |0.0-1.0| >6.0 | --- | --- | None | Long | Occasional

 | |May |0.5-1.5| >6.0 | --- | --- | None | Long | Occasional

 | |June |1.0-2.0| >6.0 | --- | --- | None | Long | Occasional

 | |July |2.0-3.0| >6.0 | --- | --- | None | Long | Occasional

 | |August |2.5-3.5| >6.0 | --- | --- | None | Long | Occasional

 | |September |3.0-4.0| >6.0 | --- | --- | None | Long | Occasional

 | |October |2.5-3.5| >6.0 | --- | --- | None | Long | Occasional

 | |November |1.5-3.0| >6.0 | --- | --- | None | Long | Occasional

 | |December |2.0-3.5| >6.0 | --- | --- | None | --- | None

 | | | | | | | | |

 Urban land. | | | | | | | | |

 | | | | | | | | |

4152: | | | | | | | | |

 Marshan, 24 to 40 inches | | | | | | | | |

 to sand and gravel-------| B/D | | | | | | | |

 | |January |2.0-3.5| >6.0 | --- | --- | None | --- | None

 | |February |1.5-3.0| >6.0 | --- | --- | None | --- | None

 | |March |0.5-2.0| >6.0 | --- | --- | None | --- | None

 | |April |0.0-1.0| >6.0 | --- | --- | None | --- | None

 | |May |0.5-1.5| >6.0 | --- | --- | None | --- | None

 | |June |1.0-2.0| >6.0 | --- | --- | None | --- | None

 | |July |2.0-3.0| >6.0 | --- | --- | None | --- | None

 | |August |2.5-3.5| >6.0 | --- | --- | None | --- | None

 | |September |3.0-4.0| >6.0 | --- | --- | None | --- | None

 | |October |2.5-3.5| >6.0 | --- | --- | None | --- | None

 | |November |1.5-3.0| >6.0 | --- | --- | None | --- | None

 | |December |2.0-3.5| >6.0 | --- | --- | None | --- | None

 | | | | | | | | |

 Urban land. | | | | | | | | |

 | | | | | | | | |

4159: | | | | | | | | |

 Finchford-----------------| A | | | | | | | |

 | |Jan-Dec | --- | --- | --- | --- | None | --- | None

 | | | | | | | | |

 Urban land. | | | | | | | | |

 | | | | | | | | |
504 Soil Survey of

Table 21.--Water Features--Continued

_____________________________________________________________________________________________________________________

 | | | Water table | Ponding | Flooding _______________________________________________________________________

 Map symbol |Hydro-| Months | Upper | Lower |Surface| Duration |Frequency | Duration | Frequency

 and soil name |logic | | limit | limit | water | | | |

 |group | | | | depth | | | | _____________________________________________________________________________________________________________________

 | | | Ft | Ft | Ft | | | |

 | | | | | | | | |

4159C: | | | | | | | | |

 Finchford-----------------| A | | | | | | | |

 | |Jan-Dec | --- | --- | --- | --- | None | --- | None

 | | | | | | | | |

 Urban land. | | | | | | | | |

 | | | | | | | | |

4171B: | | | | | | | | |

 Bassett-------------------| B | | | | | | | |

 | |January |4.0-6.0| >6.0 | --- | --- | None | --- | None

 | |February |3.5-5.5| >6.0 | --- | --- | None | --- | None

 | |March |2.5-4.5| >6.0 | --- | --- | None | --- | None

 | |April |2.0-4.0| >6.0 | --- | --- | None | --- | None

 | |May |2.5-4.5| >6.0 | --- | --- | None | --- | None

 | |June |3.0-5.0| >6.0 | --- | --- | None | --- | None

 | |July |4.0-6.0| >6.0 | --- | --- | None | --- | None

 | |August |4.5-6.5| >6.0 | --- | --- | None | --- | None

 | |September |5.0-6.7| >6.0 | --- | --- | None | --- | None

 | |October |4.5-6.5| >6.0 | --- | --- | None | --- | None

 | |November |3.5-5.5| >6.0 | --- | --- | None | --- | None

 | |December |4.0-6.0| >6.0 | --- | --- | None | --- | None

 | | | | | | | | |

 Urban land. | | | | | | | | |

 | | | | | | | | |

4171D: | | | | | | | | |

 Bassett-------------------| B | | | | | | | |

 | |January |4.0-6.0| >6.0 | --- | --- | None | --- | None

 | |February |3.5-5.5| >6.0 | --- | --- | None | --- | None

 | |March |2.5-4.5| >6.0 | --- | --- | None | --- | None

 | |April |2.0-4.0| >6.0 | --- | --- | None | --- | None

 | |May |2.5-4.5| >6.0 | --- | --- | None | --- | None

 | |June |3.0-5.0| >6.0 | --- | --- | None | --- | None

 | |July |4.0-6.0| >6.0 | --- | --- | None | --- | None

 | |August |4.5-6.5| >6.0 | --- | --- | None | --- | None

 | |September |5.0-6.7| >6.0 | --- | --- | None | --- | None

 | |October |4.5-6.5| >6.0 | --- | --- | None | --- | None

 | |November |3.5-5.5| >6.0 | --- | --- | None | --- | None

 | |December |4.0-6.0| >6.0 | --- | --- | None | --- | None

 | | | | | | | | |

 Urban land. | | | | | | | | |

 | | | | | | | | |

4175: | | | | | | | | |

 Dickinson-----------------| B | | | | | | | |

 | |Jan-Dec | --- | --- | --- | --- | None | --- | None

 | | | | | | | | |

 Urban land. | | | | | | | | |

 | | | | | | | | |

4175B: | | | | | | | | |

 Dickinson-----------------| B | | | | | | | |

 | |Jan-Dec | --- | --- | --- | --- | None | --- | None

 | | | | | | | | |

 Urban land. | | | | | | | | |

 | | | | | | | | |

4177: | | | | | | | | |

 Saude---------------------| B | | | | | | | |

 | |Jan-Dec | --- | --- | --- | --- | None | --- | None

 | | | | | | | | |

 Urban land. | | | | | | | | |

 | | | | | | | | |
Black Hawk County, Iowa 505

Table 21.--Water Features--Continued

_____________________________________________________________________________________________________________________

 | | | Water table | Ponding | Flooding _______________________________________________________________________

 Map symbol |Hydro-| Months | Upper | Lower |Surface| Duration |Frequency | Duration | Frequency

 and soil name |logic | | limit | limit | water | | | |

 |group | | | | depth | | | | _____________________________________________________________________________________________________________________

 | | | Ft | Ft | Ft | | | |

 | | | | | | | | |

4177B: | | | | | | | | |

 Saude---------------------| B | | | | | | | |

 | |Jan-Dec | --- | --- | --- | --- | None | --- | None

 | | | | | | | | |

 Urban land. | | | | | | | | |

 | | | | | | | | |

4178: | | | | | | | | |

 Waukee--------------------| B | | | | | | | |

 | |Jan-Dec | --- | --- | --- | --- | None | --- | None

 | | | | | | | | |

 Urban land. | | | | | | | | |

 | | | | | | | | |

4184: | | | | | | | | |

 Klinger-------------------| B | | | | | | | |

 | |January |3.0-5.5| >6.0 | --- | --- | None | --- | None

 | |February |2.5-5.0| >6.0 | --- | --- | None | --- | None

 | |March |1.5-4.0| >6.0 | --- | --- | None | --- | None

 | |April |1.0-3.5| >6.0 | --- | --- | None | --- | None

 | |May |1.5-4.0| >6.0 | --- | --- | None | --- | None

 | |June |3.0-5.5| >6.0 | --- | --- | None | --- | None

 | |July |3.0-5.5| >6.0 | --- | --- | None | --- | None

 | |August |3.5-6.0| >6.0 | --- | --- | None | --- | None

 | |September |4.0-6.5| >6.0 | --- | --- | None | --- | None

 | |October |3.5-6.0| >6.0 | --- | --- | None | --- | None

 | |November |2.5-5.0| >6.0 | --- | --- | None | --- | None

 | |December |3.0-5.5| >6.0 | --- | --- | None | --- | None

 | | | | | | | | |

 Urban land. | | | | | | | | |

 | | | | | | | | |

4198B: | | | | | | | | |

 Floyd---------------------| B | | | | | | | |

 | |January |3.0-5.5| >6.0 | --- | --- | None | --- | None

 | |February |2.5-5.0| >6.0 | --- | --- | None | --- | None

 | |March |1.5-4.0| >6.0 | --- | --- | None | --- | None

 | |April |1.0-3.5| >6.0 | --- | --- | None | --- | None

 | |May |1.5-4.0| >6.0 | --- | --- | None | --- | None

 | |June |3.0-5.5| >6.0 | --- | --- | None | --- | None

 | |July |3.0-5.5| >6.0 | --- | --- | None | --- | None

 | |August |3.5-6.0| >6.0 | --- | --- | None | --- | None

 | |September |4.0-6.5| >6.0 | --- | --- | None | --- | None

 | |October |3.5-6.0| >6.0 | --- | --- | None | --- | None

 | |November |2.5-5.0| >6.0 | --- | --- | None | --- | None

 | |December |3.0-5.5| >6.0 | --- | --- | None | --- | None

 | | | | | | | | |

 Urban land. | | | | | | | | |

 | | | | | | | | |

4226: | | | | | | | | |

 Lawler, 24 to 40 inches to| | | | | | | | |

 sand and gravel----------| B | | | | | | | |

 | |January |3.0-5.5| >6.0 | --- | --- | None | --- | None

 | |February |2.5-5.0| >6.0 | --- | --- | None | --- | None

 | |March |1.5-4.0| >6.0 | --- | --- | None | --- | None

 | |April |1.0-3.5| >6.0 | --- | --- | None | --- | None

 | |May |1.5-4.0| >6.0 | --- | --- | None | --- | None

 | |June |3.0-5.5| >6.0 | --- | --- | None | --- | None

 | |July |3.0-5.5| >6.0 | --- | --- | None | --- | None

 | |August |3.5-6.0| >6.0 | --- | --- | None | --- | None

 | |September |4.0-6.5| >6.0 | --- | --- | None | --- | None

 | |October |3.5-6.0| >6.0 | --- | --- | None | --- | None

 | |November |2.5-5.0| >6.0 | --- | --- | None | --- | None

 | |December |3.0-5.5| >6.0 | --- | --- | None | --- | None

 | | | | | | | | |
506 Soil Survey of

Table 21.--Water Features--Continued

_____________________________________________________________________________________________________________________

 | | | Water table | Ponding | Flooding _______________________________________________________________________

 Map symbol |Hydro-| Months | Upper | Lower |Surface| Duration |Frequency | Duration | Frequency

 and soil name |logic | | limit | limit | water | | | |

 |group | | | | depth | | | | _____________________________________________________________________________________________________________________

 | | | Ft | Ft | Ft | | | |

 | | | | | | | | |

4226: | | | | | | | | |

 Urban land. | | | | | | | | |

 | | | | | | | | |

4284: | | | | | | | | |

 Flagler-------------------| B | | | | | | | |

 | |Jan-Dec | --- | --- | --- | --- | None | --- | None

 | | | | | | | | |

 Urban land. | | | | | | | | |

 | | | | | | | | |

4284B: | | | | | | | | |

 Flagler-------------------| B | | | | | | | |

 | |Jan-Dec | --- | --- | --- | --- | None | --- | None

 | | | | | | | | |

 Urban land. | | | | | | | | |

 | | | | | | | | |

4377B: | | | | | | | | |

 Dinsdale------------------| B | | | | | | | |

 | |January |6.0-6.7| >6.0 | --- | --- | None | --- | None

 | |February |5.5-6.7| >6.0 | --- | --- | None | --- | None

 | |March |4.5-6.5| >6.0 | --- | --- | None | --- | None

 | |April |4.0-6.0| >6.0 | --- | --- | None | --- | None

 | |May |4.5-6.5| >6.0 | --- | --- | None | --- | None

 | |June |5.0-6.7| >6.0 | --- | --- | None | --- | None

 | |July |6.0-6.7| >6.0 | --- | --- | None | --- | None

 | |August |6.5-6.7| >6.0 | --- | --- | None | --- | None

 | |October |6.5-6.7| >6.0 | --- | --- | None | --- | None

 | |November |5.5-6.7| >6.0 | --- | --- | None | --- | None

 | |December |6.0-6.7| >6.0 | --- | --- | None | --- | None

 | | | | | | | | |

 Urban land. | | | | | | | | |

 | | | | | | | | |

4377C: | | | | | | | | |

 Dinsdale------------------| B | | | | | | | |

 | |January |6.0-6.7| >6.0 | --- | --- | None | --- | None

 | |February |5.5-6.7| >6.0 | --- | --- | None | --- | None

 | |March |4.5-6.5| >6.0 | --- | --- | None | --- | None

 | |April |4.0-6.0| >6.0 | --- | --- | None | --- | None

 | |May |4.5-6.5| >6.0 | --- | --- | None | --- | None

 | |June |5.0-6.7| >6.0 | --- | --- | None | --- | None

 | |July |6.0-6.7| >6.0 | --- | --- | None | --- | None

 | |August |6.5-6.7| >6.0 | --- | --- | None | --- | None

 | |October |6.5-6.7| >6.0 | --- | --- | None | --- | None

 | |November |5.5-6.7| >6.0 | --- | --- | None | --- | None

 | |December |6.0-6.7| >6.0 | --- | --- | None | --- | None

 | | | | | | | | |

 Urban land. | | | | | | | | |

 | | | | | | | | |

4382: | | | | | | | | |

 Maxfield------------------| B/D | | | | | | | |

 | |January |2.0-3.5| >6.0 | --- | --- | None | --- | None

 | |February |1.5-3.0| >6.0 | --- | --- | None | --- | None

 | |March |0.5-2.0| >6.0 | --- | --- | None | --- | None

 | |April |0.0-1.0| >6.0 | --- | --- | None | --- | None

 | |May |0.5-1.5| >6.0 | --- | --- | None | --- | None

 | |June |1.0-2.0| >6.0 | --- | --- | None | --- | None

 | |July |2.0-3.0| >6.0 | --- | --- | None | --- | None

 | |August |2.5-3.5| >6.0 | --- | --- | None | --- | None

 | |September |3.0-4.0| >6.0 | --- | --- | None | --- | None

 | |October |2.5-3.5| >6.0 | --- | --- | None | --- | None

 | |November |1.5-3.0| >6.0 | --- | --- | None | --- | None

 | |December |2.0-3.5| >6.0 | --- | --- | None | --- | None

 | | | | | | | | |
Black Hawk County, Iowa 507

Table 21.--Water Features--Continued

_____________________________________________________________________________________________________________________

 | | | Water table | Ponding | Flooding _______________________________________________________________________

 Map symbol |Hydro-| Months | Upper | Lower |Surface| Duration |Frequency | Duration | Frequency

 and soil name |logic | | limit | limit | water | | | |

 |group | | | | depth | | | | _____________________________________________________________________________________________________________________

 | | | Ft | Ft | Ft | | | |

 | | | | | | | | |

4382: | | | | | | | | |

 Urban land. | | | | | | | | |

 | | | | | | | | |

4391B: | | | | | | | | |

 Clyde---------------------| B/D | | | | | | | |

 | |January |2.0-3.5| >6.0 | --- | --- | None | --- | None

 | |February |1.5-3.0| >6.0 | --- | --- | None | --- | None

 | |March |0.5-2.0| >6.0 | --- | --- | None | --- | None

 | |April |0.0-1.0| >6.0 | --- | --- | None | --- | None

 | |May |0.5-1.5| >6.0 | --- | --- | None | --- | None

 | |June |1.0-2.0| >6.0 | --- | --- | None | --- | None

 | |July |2.0-3.0| >6.0 | --- | --- | None | --- | None

 | |August |2.5-3.5| >6.0 | --- | --- | None | --- | None

 | |September |3.0-4.0| >6.0 | --- | --- | None | --- | None

 | |October |2.5-3.5| >6.0 | --- | --- | None | --- | None

 | |November |1.5-3.0| >6.0 | --- | --- | None | --- | None

 | |December |2.0-3.5| >6.0 | --- | --- | None | --- | None

 | | | | | | | | |

 Floyd---------------------| B | | | | | | | |

 | |January |3.0-5.5| >6.0 | --- | --- | None | --- | None

 | |February |2.5-5.0| >6.0 | --- | --- | None | --- | None

 | |March |1.5-4.0| >6.0 | --- | --- | None | --- | None

 | |April |1.0-3.5| >6.0 | --- | --- | None | --- | None

 | |May |1.5-4.0| >6.0 | --- | --- | None | --- | None

 | |June |3.0-5.5| >6.0 | --- | --- | None | --- | None

 | |July |3.0-5.5| >6.0 | --- | --- | None | --- | None

 | |August |3.5-6.0| >6.0 | --- | --- | None | --- | None

 | |September |4.0-6.5| >6.0 | --- | --- | None | --- | None

 | |October |3.5-6.0| >6.0 | --- | --- | None | --- | None

 | |November |2.5-5.0| >6.0 | --- | --- | None | --- | None

 | |December |3.0-5.5| >6.0 | --- | --- | None | --- | None

 | | | | | | | | |

 Urban land. | | | | | | | | |

 | | | | | | | | |

4398: | | | | | | | | |

 Tripoli-------------------| B/D | | | | | | | |

 | |January |2.0-3.5| >6.0 | --- | --- | None | --- | None

 | |February |1.5-3.0| >6.0 | --- | --- | None | --- | None

 | |March |0.5-2.0| >6.0 | --- | --- | None | --- | None

 | |April |0.0-1.0| >6.0 | --- | --- | None | --- | None

 | |May |0.5-1.5| >6.0 | --- | --- | None | --- | None

 | |June |1.0-2.0| >6.0 | --- | --- | None | --- | None

 | |July |2.0-3.0| >6.0 | --- | --- | None | --- | None

 | |August |2.5-3.5| >6.0 | --- | --- | None | --- | None

 | |September |3.0-4.0| >6.0 | --- | --- | None | --- | None

 | |October |2.5-3.5| >6.0 | --- | --- | None | --- | None

 | |November |1.5-3.0| >6.0 | --- | --- | None | --- | None

 | |December |2.0-3.5| >6.0 | --- | --- | None | --- | None

 | | | | | | | | |

 Urban land. | | | | | | | | |

 | | | | | | | | |
508 Soil Survey of

Table 21.--Water Features--Continued

_____________________________________________________________________________________________________________________

 | | | Water table | Ponding | Flooding _______________________________________________________________________

 Map symbol |Hydro-| Months | Upper | Lower |Surface| Duration |Frequency | Duration | Frequency

 and soil name |logic | | limit | limit | water | | | |

 |group | | | | depth | | | | _____________________________________________________________________________________________________________________

 | | | Ft | Ft | Ft | | | |

 | | | | | | | | |

4399: | | | | | | | | |

 Readlyn-------------------| B | | | | | | | |

 | |January |3.0-5.5| >6.0 | --- | --- | None | --- | None

 | |February |2.5-5.0| >6.0 | --- | --- | None | --- | None

 | |March |1.5-4.0| >6.0 | --- | --- | None | --- | None

 | |April |1.0-3.5| >6.0 | --- | --- | None | --- | None

 | |May |1.5-4.0| >6.0 | --- | --- | None | --- | None

 | |June |3.0-5.5| >6.0 | --- | --- | None | --- | None

 | |July |3.0-5.5| >6.0 | --- | --- | None | --- | None

 | |August |3.5-6.0| >6.0 | --- | --- | None | --- | None

 | |September |4.0-6.5| >6.0 | --- | --- | None | --- | None

 | |October |3.5-6.0| >6.0 | --- | --- | None | --- | None

 | |November |2.5-5.0| >6.0 | --- | --- | None | --- | None

 | |December |3.0-5.5| >6.0 | --- | --- | None | --- | None

 | | | | | | | | |

 Urban land. | | | | | | | | |

 | | | | | | | | |

4408B: | | | | | | | | |

 Olin----------------------| B | | | | | | | |

 | |Jan-Dec | --- | --- | --- | --- | None | --- | None

 | | | | | | | | |

 Urban land. | | | | | | | | |

 | | | | | | | | |

4408C: | | | | | | | | |

 Olin----------------------| B | | | | | | | |

 | |Jan-Dec | --- | --- | --- | --- | None | --- | None

 | | | | | | | | |

 Urban land. | | | | | | | | |

 | | | | | | | | |

4426B: | | | | | | | | |

 Aredale-------------------| B | | | | | | | |

 | |Jan-Dec | --- | --- | --- | --- | None | --- | None

 | | | | | | | | |

 Urban land. | | | | | | | | |

 | | | | | | | | |

4426C: | | | | | | | | |

 Aredale-------------------| B | | | | | | | |

 | |Jan-Dec | --- | --- | --- | --- | None | --- | None

 | | | | | | | | |

 Urban land. | | | | | | | | |

 | | | | | | | | |

4585: | | | | | | | | |

 Spillville, occasionally | | | | | | | | |

 flooded------------------| B | | | | | | | |

 | |January |3.0-5.5| >6.0 | --- | --- | None | --- | None

 | |February |2.5-5.0| >6.0 | --- | --- | None | Long | Occasional

 | |March |1.5-4.0| >6.0 | --- | --- | None | Long | Occasional

 | |April |1.0-3.5| >6.0 | --- | --- | None | Long | Occasional

 | |May |1.5-4.0| >6.0 | --- | --- | None | Long | Occasional

 | |June |2.0-4.5| >6.0 | --- | --- | None | Long | Occasional

 | |July |3.0-5.5| >6.0 | --- | --- | None | Long | Occasional

 | |August |3.5-6.0| >6.0 | --- | --- | None | Long | Occasional

 | |September |4.0-6.5| >6.0 | --- | --- | None | Long | Occasional

 | |October |3.5-6.0| >6.0 | --- | --- | None | Long | Occasional

 | |November |2.5-5.0| >6.0 | --- | --- | None | Long | Occasional

 | |December |3.0-5.5| >6.0 | --- | --- | None | --- | None

 | | | | | | | | |
Black Hawk County, Iowa 509

Table 21.--Water Features--Continued

_____________________________________________________________________________________________________________________

 | | | Water table | Ponding | Flooding _______________________________________________________________________

 Map symbol |Hydro-| Months | Upper | Lower |Surface| Duration |Frequency | Duration | Frequency

 and soil name |logic | | limit | limit | water | | | |

 |group | | | | depth | | | | _____________________________________________________________________________________________________________________

 | | | Ft | Ft | Ft | | | |

 | | | | | | | | |

4585: | | | | | | | | |

 Coland, occasionally | | | | | | | | |

 flooded------------------| B/D | | | | | | | |

 | |January |2.0-3.5| >6.0 | --- | --- | None | --- | None

 | |February |1.5-3.0|0.7-6.7| --- | --- | None | Long | Occasional

 | |March |0.5-2.0| >6.0 | --- | --- | None | Long | Occasional

 | |April |0.0-1.0| >6.0 | --- | --- | None | Long | Occasional

 | |May |0.5-1.5| >6.0 | --- | --- | None | Long | Occasional

 | |June |1.0-2.0| >6.0 | --- | --- | None | Long | Occasional

 | |July |2.0-3.0| >6.0 | --- | --- | None | Long | Occasional

 | |August |2.5-3.5| >6.0 | --- | --- | None | Long | Occasional

 | |September |3.0-4.0| >6.0 | --- | --- | None | Long | Occasional

 | |October |2.5-3.5| >6.0 | --- | --- | None | Long | Occasional

 | |November |1.5-3.0| >6.0 | --- | --- | None | Long | Occasional

 | |December |2.0-3.5| >6.0 | --- | --- | None | --- | None

 | | | | | | | | |

 Urban land. | | | | | | | | |

 | | | | | | | | |

4761: | | | | | | | | |

 Franklin------------------| B | | | | | | | |

 | |January |3.0-5.5| >6.0 | --- | --- | None | --- | None

 | |February |2.5-5.0| >6.0 | --- | --- | None | --- | None

 | |March |1.5-4.0| >6.0 | --- | --- | None | --- | None

 | |April |1.0-3.5| >6.0 | --- | --- | None | --- | None

 | |May |1.5-4.0| >6.0 | --- | --- | None | --- | None

 | |June |3.0-5.5| >6.0 | --- | --- | None | --- | None

 | |July |3.0-5.5| >6.0 | --- | --- | None | --- | None

 | |August |3.5-6.0| >6.0 | --- | --- | None | --- | None

 | |September |4.0-6.5| >6.0 | --- | --- | None | --- | None

 | |October |3.5-6.0| >6.0 | --- | --- | None | --- | None

 | |November |2.5-5.0| >6.0 | --- | --- | None | --- | None

 | |December |3.0-5.5| >6.0 | --- | --- | None | --- | None

 | | | | | | | | |

 Urban land. | | | | | | | | |

 | | | | | | | | |

4771B: | | | | | | | | |

 Waubeek-------------------| B | | | | | | | |

 | |January |6.0-6.7| >6.0 | --- | --- | None | --- | None

 | |February |5.5-6.7| >6.0 | --- | --- | None | --- | None

 | |March |4.5-6.5| >6.0 | --- | --- | None | --- | None

 | |April |4.0-6.0| >6.0 | --- | --- | None | --- | None

 | |May |4.5-6.5| >6.0 | --- | --- | None | --- | None

 | |June |5.0-6.7| >6.0 | --- | --- | None | --- | None

 | |July |6.0-6.7| >6.0 | --- | --- | None | --- | None

 | |August |6.5-6.7| >6.0 | --- | --- | None | --- | None

 | |October |6.5-6.7| >6.0 | --- | --- | None | --- | None

 | |November |5.5-6.7| >6.0 | --- | --- | None | --- | None

 | |December |6.0-6.7| >6.0 | --- | --- | None | --- | None

 | | | | | | | | |

 Urban land. | | | | | | | | |

 | | | | | | | | |
510 Soil Survey of

Table 21.--Water Features--Continued

_____________________________________________________________________________________________________________________

 | | | Water table | Ponding | Flooding _______________________________________________________________________

 Map symbol |Hydro-| Months | Upper | Lower |Surface| Duration |Frequency | Duration | Frequency

 and soil name |logic | | limit | limit | water | | | |

 |group | | | | depth | | | | _____________________________________________________________________________________________________________________

 | | | Ft | Ft | Ft | | | |

 | | | | | | | | |

4771D: | | | | | | | | |

 Waubeek-------------------| B | | | | | | | |

 | |January |6.0-6.7| >6.0 | --- | --- | None | --- | None

 | |February |5.5-6.7| >6.0 | --- | --- | None | --- | None

 | |March |4.5-6.5| >6.0 | --- | --- | None | --- | None

 | |April |4.0-6.0| >6.0 | --- | --- | None | --- | None

 | |May |4.5-6.5| >6.0 | --- | --- | None | --- | None

 | |June |5.0-6.7| >6.0 | --- | --- | None | --- | None

 | |July |6.0-6.7| >6.0 | --- | --- | None | --- | None

 | |August |6.5-6.7| >6.0 | --- | --- | None | --- | None

 | |October |6.5-6.7| >6.0 | --- | --- | None | --- | None

 | |November |5.5-6.7| >6.0 | --- | --- | None | --- | None

 | |December |6.0-6.7| >6.0 | --- | --- | None | --- | None

 | | | | | | | | |

 Urban land. | | | | | | | | |

 | | | | | | | | |

4798: | | | | | | | | |

 Protivin------------------| C | | | | | | | |

 | |January |3.0-5.5| >6.0 | --- | --- | None | --- | None

 | |February |2.5-5.0| >6.0 | --- | --- | None | --- | None

 | |March |1.5-4.0| >6.0 | --- | --- | None | --- | None

 | |April |1.0-3.5| >6.0 | --- | --- | None | --- | None

 | |May |1.5-4.0| >6.0 | --- | --- | None | --- | None

 | |June |3.0-5.5| >6.0 | --- | --- | None | --- | None

 | |July |3.0-5.5| >6.0 | --- | --- | None | --- | None

 | |August |3.5-6.0| >6.0 | --- | --- | None | --- | None

 | |September |4.0-6.5| >6.0 | --- | --- | None | --- | None

 | |October |3.5-6.0| >6.0 | --- | --- | None | --- | None

 | |November |2.5-5.0| >6.0 | --- | --- | None | --- | None

 | |December |3.0-5.5| >6.0 | --- | --- | None | --- | None

 | | | | | | | | |

 Urban land. | | | | | | | | |

 | | | | | | | | |

4911B: | | | | | | | | |

 Colo----------------------| B/D | | | | | | | |

 | |January |2.0-3.5| >6.0 | --- | --- | None | --- | None

 | |February |1.5-3.0| >6.0 | --- | --- | None | Very brief | Frequent

 | |March |0.5-2.0| >6.0 | --- | --- | None | Very brief | Frequent

 | |April |0.0-1.0| >6.0 | --- | --- | None | Very brief | Frequent

 | |May |0.5-1.5| >6.0 | --- | --- | None | Very brief | Frequent

 | |June |1.0-2.0| >6.0 | --- | --- | None | Very brief | Frequent

 | |July |2.0-3.0| >6.0 | --- | --- | None | Very brief | Frequent

 | |August |2.5-3.5| >6.0 | --- | --- | None | Very brief | Frequent

 | |September |3.0-4.0| >6.0 | --- | --- | None | Very brief | Frequent

 | |October |2.5-3.5| >6.0 | --- | --- | None | Very brief | Frequent

 | |November |1.5-3.0| >6.0 | --- | --- | None | Very brief | Frequent

 | |December |2.0-3.5| >6.0 | --- | --- | None | --- | None

 | | | | | | | | |

 Ely-----------------------| B | | | | | | | |

 | |January |3.0-5.5| >6.0 | --- | --- | None | --- | None

 | |February |2.5-5.0| >6.0 | --- | --- | None | --- | None

 | |March |1.5-4.0| >6.0 | --- | --- | None | --- | None

 | |April |1.0-3.5| >6.0 | --- | --- | None | --- | None

 | |May |1.5-4.0| >6.0 | --- | --- | None | --- | None

 | |June |3.0-5.5| >6.0 | --- | --- | None | --- | None

 | |July |3.0-5.5| >6.0 | --- | --- | None | --- | None

 | |August |3.5-6.0| >6.0 | --- | --- | None | --- | None

 | |September |4.0-6.5| >6.0 | --- | --- | None | --- | None

 | |October |3.5-6.0| >6.0 | --- | --- | None | --- | None

 | |November |2.5-5.0| >6.0 | --- | --- | None | --- | None

 | |December |3.0-5.5| >6.0 | --- | --- | None | --- | None

 | | | | | | | | |
Black Hawk County, Iowa 511

Table 21.--Water Features--Continued

_____________________________________________________________________________________________________________________

 | | | Water table | Ponding | Flooding _______________________________________________________________________

 Map symbol |Hydro-| Months | Upper | Lower |Surface| Duration |Frequency | Duration | Frequency

 and soil name |logic | | limit | limit | water | | | |

 |group | | | | depth | | | | _____________________________________________________________________________________________________________________

 | | | Ft | Ft | Ft | | | |

 | | | | | | | | |

4911B: | | | | | | | | |

 Urban land. | | | | | | | | |

 | | | | | | | | |

4933: | | | | | | | | |

 Sawmill, occasionally | | | | | | | | |

 flooded------------------| B/D | | | | | | | |

 | |January |2.0-3.5| >6.0 | --- | --- | None | --- | None

 | |February |1.5-3.0|0.7-6.7| --- | --- | None | Long | Occasional

 | |March |0.5-2.0| >6.0 | --- | --- | None | Long | Occasional

 | |April |0.0-1.0| >6.0 | --- | --- | None | Long | Occasional

 | |May |0.5-1.5| >6.0 | --- | --- | None | Long | Occasional

 | |June |1.0-2.0| >6.0 | --- | --- | None | Long | Occasional

 | |July |2.0-3.0| >6.0 | --- | --- | None | Long | Occasional

 | |August |2.5-3.5| >6.0 | --- | --- | None | Long | Occasional

 | |September |3.0-4.0| >6.0 | --- | --- | None | Long | Occasional

 | |October |2.5-3.5| >6.0 | --- | --- | None | Long | Occasional

 | |November |1.5-3.0| >6.0 | --- | --- | None | Long | Occasional

 | |December |2.0-3.5| >6.0 | --- | --- | None | --- | None

 | | | | | | | | |

 Urban land. | | | | | | | | |

 | | | | | | | | |

4946: | | | | | | | | |

 Orthents, loamy. | | | | | | | | |

 | | | | | | | | |

 Urban land. | | | | | | | | |

 | | | | | | | | |

5010. | | | | | | | | |

 Pits, sand and gravel | | | | | | | | |

 | | | | | | | | |

5030. | | | | | | | | |

 Pits, limestone quarries | | | | | | | | |

 | | | | | | | | |

5040. | | | | | | | | |

 Orthents, loamy | | | | | | | | |

 | | | | | | | | |

5053: | | | | | | | | |

 Psammaquents, frequently | | | | | | | | |

 flooded------------------| A/D | | | | | | | |

 | |January |0.0-1.0| >6.0 | --- | --- | None | --- | None

 | |February |0.0-1.0| >6.0 | --- | --- | None | Long | Frequent

 | |March |0.0-1.0| >6.0 | --- | --- | None | Long | Frequent

 | |April |0.0-1.0| >6.0 | --- | --- | None | Long | Frequent

 | |May |0.0-1.0| >6.0 | --- | --- | None | Long | Frequent

 | |June |0.0-1.0| >6.0 | --- | --- | None | Long | Frequent

 | |July |0.0-1.0| >6.0 | --- | --- | None | Long | Frequent

 | |August | --- | --- | --- | --- | None | Long | Frequent

 | |September | --- | --- | --- | --- | None | Long | Frequent

 | |October | --- | --- | --- | --- | None | Long | Frequent

 | |November |0.0-1.0| >6.0 | --- | --- | None | Long | Frequent

 | |December |0.0-1.0| >6.0 | --- | --- | None | --- | None

 | | | | | | | | |

5080. | | | | | | | | |

 Orthents, sanitary | | | | | | | | |

 landfill | | | | | | | | |

 | | | | | | | | |

AW. | | | | | | | | |

 Animal waste | | | | | | | | |

 | | | | | | | | |

SL. | | | | | | | | |

 Sewage lagoon | | | | | | | | |

 | | | | | | | | |
512 Soil Survey of

Table 21.--Water Features--Continued

_____________________________________________________________________________________________________________________

 | | | Water table | Ponding | Flooding _______________________________________________________________________

 Map symbol |Hydro-| Months | Upper | Lower |Surface| Duration |Frequency | Duration | Frequency

 and soil name |logic | | limit | limit | water | | | |

 |group | | | | depth | | | | _____________________________________________________________________________________________________________________

 | | | Ft | Ft | Ft | | | |

 | | | | | | | | |

W. | | | | | | | | |

 Water | | | | | | | | |

 | | | | | | | | | _____________________________________________________________________________________________________________________
Table 22.--Soil Features (See text for definitions of terms used in this table. Absence of an entry indicates that the feature is no

 data were not estimated) ____________________________________________________________________________________________________________ | Restrictive layer | Subsidence | |  Map symbol |_____________________________________________________|_______________| Potential |____ and soil name | | Depth | | | | | for | Un | Kind |to top |Thickness| Hardness |Initial| Total |frost action| ____________________________________________________________________________________________________________ | | In | In | | In | In | |  | | | | | | | | 7: | | | | | | | |  Wiota--------------| --- | >80 | --- | --- | --- | --- |High--------|Mode | | | | | | | | 41: | | | | | | | |  Sparta-------------| --- | >80 | --- | --- | --- | --- |Low---------|Low | | | | | | | | 41B: | | | | | | | |  Sparta-------------| --- | >80 | --- | --- | --- | --- |Low---------|Low | | | | | | | | 41C: | | | | | | | |  Sparta-------------| --- | >80 | --- | --- | --- | --- |Low---------|Low | | | | | | | | 41D: | | | | | | | |  Sparta-------------| --- | >80 | --- | --- | --- | --- |Low---------|Low | | | | | | | | 63B: | | | | | | | |  Chelsea------------| --- | >80 | --- | --- | --- | --- |Low---------|Low | | | | | | | | 63C: | | | | | | | |  Chelsea------------| --- | >80 | --- | --- | --- | --- |Low---------|Low | | | | | | | | 63D: | | | | | | | |  Chelsea------------| --- | >80 | --- | --- | --- | --- |Low---------|Low | | | | | | | | 83B: | | | | | | | |  Kenyon-------------| --- | >80 | --- | --- | --- | --- |Moderate----|Mode | | | | | | | | 83C: | | | | | | | |  Kenyon-------------| --- | >80 | --- | --- | --- | --- |Moderate----|Mode | | | | | | | | 83C2: | | | | | | | |  Kenyon, moderately | | | | | | | |  eroded------------| --- | >80 | --- | --- | --- | --- |Moderate----|Mode | | | | | | | | 83D2: | | | | | | | |  Kenyon, moderately | | | | | | | |  eroded------------| --- | >80 | --- | --- | --- | --- |Moderate----|Mode | | | | | | | | 84: | | | | | | | |  Clyde--------------| --- | >80 | --- | --- | --- | --- |High--------|High | | | | | | | | 
Table 22.--Soil Features--Continued ___________________________________________________________________________________________________________

 | Restrictive layer | Subsidence | |  Map symbol |_____________________________________________________|_______________| Potential |___ and soil name | | Depth | | | | | for | U | Kind |to top |Thickness| Hardness |Initial| Total |frost action| ___________________________________________________________________________________________________________ | | In | In | | In | In | |  | | | | | | | | 88: | | | | | | | |  Nevin--------------| --- | >80 | --- | --- | --- | --- |High--------|Hig | | | | | | | | 133: | | | | | | | |  Colo, occasionally | | | | | | | |  flooded-----------| --- | >80 | --- | --- | --- | --- |High--------|Hig | | | | | | | | 135: | | | | | | | |  Coland, | | | | | | | |  occasionally | | | | | | | |  flooded-----------| --- | >80 | --- | --- | --- | --- |High--------|Hig | | | | | | | | 159: | | | | | | | |  Finchford----------| --- | >80 | --- | --- | --- | --- |Low---------|Low | | | | | | | | 159C: | | | | | | | |  Finchford----------| --- | >80 | --- | --- | --- | --- |Low---------|Low | | | | | | | | 171B: | | | | | | | |  Bassett------------| --- | >80 | --- | --- | --- | --- |Moderate----|Mod | | | | | | | | 175: | | | | | | | |  Dickinson----------| --- | >80 | --- | --- | --- | --- |Moderate----|Low | | | | | | | | 175B: | | | | | | | |  Dickinson----------| --- | >80 | --- | --- | --- | --- |Moderate----|Low | | | | | | | | 177: | | | | | | | |  Saude--------------| --- | >80 | --- | --- | --- | --- |Low---------|Low | | | | | | | | 177B: | | | | | | | |  Saude--------------| --- | >80 | --- | --- | --- | --- |Low---------|Low | | | | | | | | 178: | | | | | | | |  Waukee-------------| --- | >80 | --- | --- | --- | --- |Low---------|Low | | | | | | | | 178B: | | | | | | | |  Waukee-------------| --- | >80 | --- | --- | --- | --- |Low---------|Low | | | | | | | | 184: | | | | | | | |  Klinger------------| --- | >80 | --- | --- | --- | --- |High--------|Hig | | | | | | | | 198B: | | | | | | | |  Floyd--------------| --- | >80 | --- | --- | --- | --- |High--------|Hig | | | | | | | | 
Table 22.--Soil Features--Continued ___________________________________________________________________________________________________________

 | Restrictive layer | Subsidence | |  Map symbol |_____________________________________________________|_______________| Potential |___ and soil name | | Depth | | | | | for | U | Kind |to top |Thickness| Hardness |Initial| Total |frost action| ___________________________________________________________________________________________________________ | | In | In | | In | In | |  | | | | | | | | 213B: | | | | | | | |  Rockton, 30 to 40 | | | | | | | |  inches to | | | | | | | |  limestone---------|Bedrock (lithic) | 30-40 | 40-50 |Strongly cemented| --- | --- |Moderate----|Low | | | | | | | | 221: | | | | | | | |  Klossner-----------| --- | >80 | --- | --- | 4-15 | 25-32 |High--------|Hig | | | | | | | | 284: | | | | | | | |  Flagler------------| --- | >80 | --- | --- | --- | --- |Low---------|Mod | | | | | | | | 284B: | | | | | | | |  Flagler------------| --- | >80 | --- | --- | --- | --- |Low---------|Mod | | | | | | | | 290: | | | | | | | |  Dells--------------| --- | >80 | --- | --- | --- | --- |High--------|Low | | | | | | | | 354. | | | | | | | |  Aquolls, ponded | | | | | | | |  | | | | | | | | 377B: | | | | | | | |  Dinsdale-----------| --- | >80 | --- | --- | --- | --- |High--------|Mod | | | | | | | | 377C: | | | | | | | |  Dinsdale-----------| --- | >80 | --- | --- | --- | --- |High--------|Mod | | | | | | | | 377C2: | | | | | | | |  Dinsdale, | | | | | | | |  moderately eroded | --- | >80 | --- | --- | --- | --- |High--------|Mod | | | | | | | | 382: | | | | | | | |  Maxfield-----------| --- | >80 | --- | --- | --- | --- |High--------|Hig | | | | | | | | 391B: | | | | | | | |  Clyde--------------| --- | >80 | --- | --- | --- | --- |High--------|Hig | | | | | | | |  Floyd--------------| --- | >80 | --- | --- | --- | --- |High--------|Hig | | | | | | | | 395B: | | | | | | | |  Marquis------------| --- | >80 | --- | --- | --- | --- |Moderate----|Mod | | | | | | | | 398: | | | | | | | |  Tripoli------------| --- | >80 | --- | --- | --- | --- |High--------|Hig | | | | | | | | 
Table 22.--Soil Features--Continued ____________________________________________________________________________________________________________

 | Restrictive layer | Subsidence | |  Map symbol |_____________________________________________________|_______________| Potential |____ and soil name | | Depth | | | | | for | Un | Kind |to top |Thickness| Hardness |Initial| Total |frost action| ____________________________________________________________________________________________________________ | | In | In | | In | In | |  | | | | | | | | 399: | | | | | | | |  Readlyn------------| --- | >80 | --- | --- | --- | --- |High--------|High | | | | | | | | 408B: | | | | | | | |  Olin---------------| --- | >80 | --- | --- | --- | --- |Moderate----|Mode | | | | | | | | 408C: | | | | | | | |  Olin---------------| --- | >80 | --- | --- | --- | --- |Moderate----|Mode | | | | | | | | 412C: | | | | | | | |  Emeline------------|Bedrock (lithic) | 4-12 | --- | --- | --- | --- |Moderate----|Low | | | | | | | | 426B: | | | | | | | |  Aredale------------| --- | >80 | --- | --- | --- | --- |Moderate----|Mode | | | | | | | | 426C: | | | | | | | |  Aredale------------| --- | >80 | --- | --- | --- | --- |Moderate----|Mode | | | | | | | | 426C2: | | | | | | | |  Aredale, moderately| | | | | | | |  eroded------------| --- | >80 | --- | --- | --- | --- |Moderate----|Mode | | | | | | | | 468B: | | | | | | | |  Dunkerton----------| --- | >80 | --- | --- | --- | --- |Moderate----|Mode | | | | | | | | 468C: | | | | | | | |  Dunkerton----------| --- | >80 | --- | --- | --- | --- |Moderate----|Mode | | | | | | | | 471: | | | | | | | |  Oran---------------| --- | >80 | --- | --- | --- | --- |High--------|High | | | | | | | | 485: | | | | | | | |  Spillville, | | | | | | | |  occasionally | | | | | | | |  flooded-----------| --- | >80 | --- | --- | --- | --- |Moderate----|High | | | | | | | | 585: | | | | | | | |  Spillville, | | | | | | | |  occasionally | | | | | | | |  flooded-----------| --- | >80 | --- | --- | --- | --- |Moderate----|High | | | | | | | |  Coland, | | | | | | | |  occasionally | | | | | | | |  flooded-----------| --- | >80 | --- | --- | --- | --- |High--------|High | | | | | | | | 
Table 22.--Soil Features--Continued ___________________________________________________________________________________________________________

 | Restrictive layer | Subsidence | |  Map symbol |_____________________________________________________|_______________| Potential |___ and soil name | | Depth | | | | | for | U | Kind |to top |Thickness| Hardness |Initial| Total |frost action| ___________________________________________________________________________________________________________ | | In | In | | In | In | |  | | | | | | | | 626: | | | | | | | |  Hayfield, 24 to 40 | | | | | | | |  inches to sand and| | | | | | | |  gravel------------| --- | >80 | --- | --- | --- | --- |High--------|Low | | | | | | | | 761: | | | | | | | |  Franklin-----------| --- | >80 | --- | --- | --- | --- |High--------|Hig | | | | | | | | 771B: | | | | | | | |  Waubeek------------| --- | >80 | --- | --- | --- | --- |High--------|Mod | | | | | | | | 775B: | | | | | | | |  Billett------------| --- | >80 | --- | --- | --- | --- |Moderate----|Low | | | | | | | | 776C: | | | | | | | |  Lilah--------------| --- | >80 | --- | --- | --- | --- |Low---------|Low | | | | | | | | 777: | | | | | | | |  Wapsie-------------| --- | >80 | --- | --- | --- | --- |Low---------|Low | | | | | | | | 781B: | | | | | | | |  Lourdes------------| --- | >80 | --- | --- | --- | --- |High--------|Hig | | | | | | | | 781C2: | | | | | | | |  Lourdes, moderately| | | | | | | |  eroded------------| --- | >80 | --- | --- | --- | --- |High--------|Hig | | | | | | | | 782B: | | | | | | | |  Donnan-------------| --- | >80 | --- | --- | --- | --- |High--------|Hig | | | | | | | | 798: | | | | | | | |  Protivin-----------| --- | >80 | --- | --- | --- | --- |High--------|Hig | | | | | | | | 809B: | | | | | | | |  Bertram------------|Bedrock (lithic) | 20-40 | --- | --- | --- | --- |Moderate----|Low | | | | | | | | 877B: | | | | | | | |  Dinsmore-----------| --- | >80 | --- | --- | --- | --- |High--------|Mod | | | | | | | | 884: | | | | | | | |  Klingmore----------| --- | >80 | --- | --- | --- | --- |High--------|Hig | | | | | | | | 911B: | | | | | | | |  Colo---------------| --- | >80 | --- | --- | --- | --- |High--------|Hig | | | | | | | | 
Table 22.--Soil Features--Continued ____________________________________________________________________________________________________________

 | Restrictive layer | Subsidence | |  Map symbol |_____________________________________________________|_______________| Potential |____ and soil name | | Depth | | | | | for | Un | Kind |to top |Thickness| Hardness |Initial| Total |frost action| ____________________________________________________________________________________________________________ | | In | In | | In | In | |  | | | | | | | | 911B: | | | | | | | |  Ely----------------| --- | >80 | --- | --- | --- | --- |High--------|High | | | | | | | | 933: | | | | | | | |  Sawmill, | | | | | | | |  occasionally | | | | | | | |  flooded-----------| --- | >80 | --- | --- | --- | --- |High--------|High | | | | | | | | 982: | | | | | | | |  Maxmore------------| --- | >80 | --- | --- | --- | --- |High--------|High | | | | | | | | 1152: | | | | | | | |  Marshan, 24 to 40 | | | | | | | |  inches to sand and| | | | | | | |  gravel------------| --- | >80 | --- | --- | --- | --- |High--------|High | | | | | | | | 1226: | | | | | | | |  Lawler, 24 to 40 | | | | | | | |  inches to sand and| | | | | | | |  gravel------------| --- | >80 | --- | --- | --- | --- |High--------|High | | | | | | | | 1285G: | | | | | | | |  Burkhardt----------| --- | >80 | --- | --- | --- | --- |Low---------|Low | | | | | | | |  Bassett------------| --- | >80 | --- | --- | --- | --- | --- |  | | | | | | | |  Chelsea------------| --- | >80 | --- | --- | --- | --- | --- |  | | | | | | | | 1585: | | | | | | | |  Spillville, | | | | | | | |  frequently flooded| --- | >80 | --- | --- | --- | --- |Moderate----|High | | | | | | | |  Coland, frequently | | | | | | | |  flooded-----------| --- | >80 | --- | --- | --- | --- |High--------|High | | | | | | | |  Aquolls, ponded. | | | | | | | |  | | | | | | | | 1586: | | | | | | | |  Sigglekov, | | | | | | | |  frequently flooded| --- | >80 | --- | --- | --- | --- |Low---------|Low | | | | | | | |  Fluvaquents, | | | | | | | |  frequently flooded| | | | | | | |  | | | | | | | |  Aquents, ponded. | | | | | | | |  | | | | | | | | 
Table 22.--Soil Features--Continued ___________________________________________________________________________________________________________

 | Restrictive layer | Subsidence | |  Map symbol |_____________________________________________________|_______________| Potential |___ and soil name | | Depth | | | | | for | U | Kind |to top |Thickness| Hardness |Initial| Total |frost action| ___________________________________________________________________________________________________________ | | In | In | | In | In | |  | | | | | | | | 4000. | | | | | | | |  Urban land | | | | | | | |  | | | | | | | | 4007: | | | | | | | |  Wiota--------------| --- | >80 | --- | --- | --- | --- |High--------|Mod | | | | | | | |  Urban land. | | | | | | | |  | | | | | | | | 4041: | | | | | | | |  Sparta-------------| --- | >80 | --- | --- | --- | --- |Low---------|Low | | | | | | | |  Urban land. | | | | | | | |  | | | | | | | | 4041B: | | | | | | | |  Sparta-------------| --- | >80 | --- | --- | --- | --- |Low---------|Low | | | | | | | |  Urban land. | | | | | | | |  | | | | | | | | 4041C: | | | | | | | |  Sparta-------------| --- | >80 | --- | --- | --- | --- |Low---------|Low | | | | | | | |  Urban land. | | | | | | | |  | | | | | | | | 4041D: | | | | | | | |  Sparta-------------| --- | >80 | --- | --- | --- | --- |Low---------|Low | | | | | | | |  Urban land. | | | | | | | |  | | | | | | | | 4063B: | | | | | | | |  Chelsea------------| --- | >80 | --- | --- | --- | --- |Low---------|Low | | | | | | | |  Urban land. | | | | | | | |  | | | | | | | | 4063C: | | | | | | | |  Chelsea------------| --- | >80 | --- | --- | --- | --- |Low---------|Low | | | | | | | |  Urban land. | | | | | | | |  | | | | | | | | 4063D: | | | | | | | |  Chelsea------------| --- | >80 | --- | --- | --- | --- |Low---------|Low | | | | | | | |  Urban land. | | | | | | | |  | | | | | | | | 
Table 22.--Soil Features--Continued ____________________________________________________________________________________________________________

 | Restrictive layer | Subsidence | |  Map symbol |_____________________________________________________|_______________| Potential |____ and soil name | | Depth | | | | | for | Un | Kind |to top |Thickness| Hardness |Initial| Total |frost action| ____________________________________________________________________________________________________________ | | In | In | | In | In | |  | | | | | | | | 4083B: | | | | | | | |  Kenyon-------------| --- | >80 | --- | --- | --- | --- |Moderate----|Mode | | | | | | | |  Urban land. | | | | | | | |  | | | | | | | | 4083C: | | | | | | | |  Kenyon-------------| --- | >80 | --- | --- | --- | --- |Moderate----|Mode | | | | | | | |  Urban land. | | | | | | | |  | | | | | | | | 4083D: | | | | | | | |  Kenyon-------------| --- | >80 | --- | --- | --- | --- |Moderate----|Mode | | | | | | | |  Urban land. | | | | | | | |  | | | | | | | | 4084: | | | | | | | |  Clyde--------------| --- | >80 | --- | --- | --- | --- |High--------|High | | | | | | | |  Urban land. | | | | | | | |  | | | | | | | | 4088: | | | | | | | |  Nevin--------------| --- | >80 | --- | --- | --- | --- |High--------|High | | | | | | | |  Urban land. | | | | | | | |  | | | | | | | | 4133: | | | | | | | |  Colo, occasionally | | | | | | | |  flooded-----------| --- | >80 | --- | --- | --- | --- |High--------|High | | | | | | | |  Urban land. | | | | | | | |  | | | | | | | | 4135: | | | | | | | |  Coland, | | | | | | | |  occasionally | | | | | | | |  flooded-----------| --- | >80 | --- | --- | --- | --- |High--------|High | | | | | | | |  Urban land. | | | | | | | |  | | | | | | | | 4152: | | | | | | | |  Marshan, 24 to 40 | | | | | | | |  inches to sand and| | | | | | | |  gravel------------| --- | >80 | --- | --- | --- | --- |High--------|High | | | | | | | |  Urban land. | | | | | | | |  | | | | | | | | 
Table 22.--Soil Features--Continued ____________________________________________________________________________________________________________

 | Restrictive layer | Subsidence | |  Map symbol |_____________________________________________________|_______________| Potential |____ and soil name | | Depth | | | | | for | Un | Kind |to top |Thickness| Hardness |Initial| Total |frost action| ____________________________________________________________________________________________________________ | | In | In | | In | In | |  | | | | | | | | 4159: | | | | | | | |  Finchford----------| --- | >80 | --- | --- | --- | --- |Low---------|Low | | | | | | | |  Urban land. | | | | | | | |  | | | | | | | | 4159C: | | | | | | | |  Finchford----------| --- | >80 | --- | --- | --- | --- |Low---------|Low | | | | | | | |  Urban land. | | | | | | | |  | | | | | | | | 4171B: | | | | | | | |  Bassett------------| --- | >80 | --- | --- | --- | --- |Moderate----|Mode | | | | | | | |  Urban land. | | | | | | | |  | | | | | | | | 4171D: | | | | | | | |  Bassett------------| --- | >80 | --- | --- | --- | --- |Moderate----|Mode | | | | | | | |  Urban land. | | | | | | | |  | | | | | | | | 4175: | | | | | | | |  Dickinson----------| --- | >80 | --- | --- | --- | --- |Moderate----|Low | | | | | | | |  Urban land. | | | | | | | |  | | | | | | | | 4175B: | | | | | | | |  Dickinson----------| --- | >80 | --- | --- | --- | --- |Moderate----|Low | | | | | | | |  Urban land. | | | | | | | |  | | | | | | | | 4177: | | | | | | | |  Saude--------------| --- | >80 | --- | --- | --- | --- |Low---------|Low | | | | | | | |  Urban land. | | | | | | | |  | | | | | | | | 4177B: | | | | | | | |  Saude--------------| --- | >80 | --- | --- | --- | --- |Low---------|Low | | | | | | | |  Urban land. | | | | | | | |  | | | | | | | | 4178: | | | | | | | |  Waukee-------------| --- | >80 | --- | --- | --- | --- |Low---------|Low | | | | | | | |  Urban land. | | | | | | | |  | | | | | | | | 
Table 22.--Soil Features--Continued ____________________________________________________________________________________________________________

 | Restrictive layer | Subsidence | |  Map symbol |_____________________________________________________|_______________| Potential |____ and soil name | | Depth | | | | | for | Un | Kind |to top |Thickness| Hardness |Initial| Total |frost action| ____________________________________________________________________________________________________________ | | In | In | | In | In | |  | | | | | | | | 4184: | | | | | | | |  Klinger------------| --- | >80 | --- | --- | --- | --- |High--------|High | | | | | | | |  Urban land. | | | | | | | |  | | | | | | | | 4198B: | | | | | | | |  Floyd--------------| --- | >80 | --- | --- | --- | --- |High--------|High | | | | | | | |  Urban land. | | | | | | | |  | | | | | | | | 4226: | | | | | | | |  Lawler, 24 to 40 | | | | | | | |  inches to sand and| | | | | | | |  gravel------------| --- | >80 | --- | --- | --- | --- |High--------|High | | | | | | | |  Urban land. | | | | | | | |  | | | | | | | | 4284: | | | | | | | |  Flagler------------| --- | >80 | --- | --- | --- | --- |Low---------|Mode | | | | | | | |  Urban land. | | | | | | | |  | | | | | | | | 4284B: | | | | | | | |  Flagler------------| --- | >80 | --- | --- | --- | --- |Low---------|Mode | | | | | | | |  Urban land. | | | | | | | |  | | | | | | | | 4377B: | | | | | | | |  Dinsdale-----------| --- | >80 | --- | --- | --- | --- |High--------|Mode | | | | | | | |  Urban land. | | | | | | | |  | | | | | | | | 4377C: | | | | | | | |  Dinsdale-----------| --- | >80 | --- | --- | --- | --- |High--------|Mode | | | | | | | |  Urban land. | | | | | | | |  | | | | | | | | 4382: | | | | | | | |  Maxfield-----------| --- | >80 | --- | --- | --- | --- |High--------|High | | | | | | | |  Urban land. | | | | | | | |  | | | | | | | | 4391B: | | | | | | | |  Clyde--------------| --- | >80 | --- | --- | --- | --- |High--------|High | | | | | | | | 
Table 22.--Soil Features--Continued ___________________________________________________________________________________________________________

 | Restrictive layer | Subsidence | |  Map symbol |_____________________________________________________|_______________| Potential |___ and soil name | | Depth | | | | | for | U | Kind |to top |Thickness| Hardness |Initial| Total |frost action| ___________________________________________________________________________________________________________ | | In | In | | In | In | |  | | | | | | | | 4391B: | | | | | | | |  Floyd--------------| --- | >80 | --- | --- | --- | --- |High--------|Hig | | | | | | | |  Urban land. | | | | | | | |  | | | | | | | | 4398: | | | | | | | |  Tripoli------------| --- | >80 | --- | --- | --- | --- |High--------|Hig | | | | | | | |  Urban land. | | | | | | | |  | | | | | | | | 4399: | | | | | | | |  Readlyn------------| --- | >80 | --- | --- | --- | --- |High--------|Hig | | | | | | | |  Urban land. | | | | | | | |  | | | | | | | | 4408B: | | | | | | | |  Olin---------------| --- | >80 | --- | --- | --- | --- |Moderate----|Mod | | | | | | | |  Urban land. | | | | | | | |  | | | | | | | | 4408C: | | | | | | | |  Olin---------------| --- | >80 | --- | --- | --- | --- |Moderate----|Mod | | | | | | | |  Urban land. | | | | | | | |  | | | | | | | | 4426B: | | | | | | | |  Aredale------------| --- | >80 | --- | --- | --- | --- |Moderate----|Mod | | | | | | | |  Urban land. | | | | | | | |  | | | | | | | | 4426C: | | | | | | | |  Aredale------------| --- | >80 | --- | --- | --- | --- |Moderate----|Mod | | | | | | | |  Urban land. | | | | | | | |  | | | | | | | | 4585: | | | | | | | |  Spillville, | | | | | | | |  occasionally | | | | | | | |  flooded-----------| --- | >80 | --- | --- | --- | --- |Moderate----|Hig | | | | | | | |  Coland, | | | | | | | |  occasionally | | | | | | | |  flooded-----------| --- | >80 | --- | --- | --- | --- |High--------|Hig | | | | | | | |  Urban land. | | | | | | | |  | | | | | | | | 
Table 22.--Soil Features--Continued ____________________________________________________________________________________________________________

 | Restrictive layer | Subsidence | |  Map symbol |_____________________________________________________|_______________| Potential |____ and soil name | | Depth | | | | | for | Un | Kind |to top |Thickness| Hardness |Initial| Total |frost action| ____________________________________________________________________________________________________________ | | In | In | | In | In | |  | | | | | | | | 4761: | | | | | | | |  Franklin-----------| --- | >80 | --- | --- | --- | --- |High--------|High | | | | | | | |  Urban land. | | | | | | | |  | | | | | | | | 4771B: | | | | | | | |  Waubeek------------| --- | >80 | --- | --- | --- | --- |High--------|Mode | | | | | | | |  Urban land. | | | | | | | |  | | | | | | | | 4771D: | | | | | | | |  Waubeek------------| --- | >80 | --- | --- | --- | --- |High--------|Mode | | | | | | | |  Urban land. | | | | | | | |  | | | | | | | | 4798: | | | | | | | |  Protivin-----------| --- | >80 | --- | --- | --- | --- |High--------|High | | | | | | | |  Urban land. | | | | | | | |  | | | | | | | | 4911B: | | | | | | | |  Colo---------------| --- | >80 | --- | --- | --- | --- |High--------|High | | | | | | | |  Ely----------------| --- | >80 | --- | --- | --- | --- |High--------|High | | | | | | | |  Urban land. | | | | | | | |  | | | | | | | | 4933: | | | | | | | |  Sawmill, | | | | | | | |  occasionally | | | | | | | |  flooded-----------| --- | >80 | --- | --- | --- | --- |High--------|High | | | | | | | |  Urban land. | | | | | | | |  | | | | | | | | 4946: | | | | | | | |  Orthents, loamy. | | | | | | | |  | | | | | | | |  Urban land. | | | | | | | |  | | | | | | | | 5010. | | | | | | | |  Pits, sand and | | | | | | | |  gravel | | | | | | | |  | | | | | | | | 
Table 22.--Soil Features--Continued ___________________________________________________________________________________________________________

 | Restrictive layer | Subsidence | |  Map symbol |_____________________________________________________|_______________| Potential |___ and soil name | | Depth | | | | | for | U | Kind |to top |Thickness| Hardness |Initial| Total |frost action| ___________________________________________________________________________________________________________ | | In | In | | In | In | |  | | | | | | | | 5030. | | | | | | | |  Pits, limestone | | | | | | | |  quarries | | | | | | | |  | | | | | | | | 5040. | | | | | | | |  Orthents, loamy | | | | | | | |  | | | | | | | | 5053. | | | | | | | |  Psammaquents, | | | | | | | |  frequently flooded| | | | | | | |  | | | | | | | | 5080. | | | | | | | |  Orthents, sanitary | | | | | | | |  landfill | | | | | | | |  | | | | | | | | AW. | | | | | | | |  Animal waste | | | | | | | |  | | | | | | | | SL. | | | | | | | |  Sewage lagoon | | | | | | | |  | | | | | | | | W. | | | | | | | |  Water | | | | | | | |  | | | | | | | | ___________________________________________________________________________________________________________
526

Table 23.--Classification of the Soils

__________________________________________________________________________________________________________________________

 |

 Soil name | Family or higher taxonomic class

 | __________________________________________________________________________________________________________________________

 |

 Aredale------------------|Fine-loamy, mixed, superactive, mesic Typic Hapludolls

 Atkinson-----------------|Fine-loamy, mixed, superactive, mesic Typic Argiudolls

 Bassett------------------|Fine-loamy, mixed, superactive, mesic Oxyaquic Hapludalfs

 Bertram------------------|Coarse-loamy, mixed, superactive, mesic Typic Hapludolls

 Billett------------------|Coarse-loamy, mixed, superactive, mesic Mollic Hapludalfs

 Burkhardt----------------|Sandy, mixed, mesic Typic Hapludolls

 Chelsea------------------|Mixed, mesic Lamellic Udipsamments

 Clyde--------------------|Fine-loamy, mixed, superactive, mesic Typic Endoaquolls

 Coland-------------------|Fine-loamy, mixed, superactive, mesic Cumulic Endoaquolls

 Colo---------------------|Fine-silty, mixed, superactive, mesic Cumulic Endoaquolls

 Dells--------------------|Fine-silty over sandy or sandy-skeletal, mixed, superactive, mesic Aquollic Hapludalfs

 Dickinson----------------|Coarse-loamy, mixed, superactive, mesic Typic Hapludolls

 Dinsdale-----------------|Fine-silty, mixed, superactive, mesic Typic Argiudolls

 Dinsmore-----------------|Fine-silty, mixed, superactive, mesic Typic Hapludolls

 Donnan-------------------|Fine-loamy over clayey, mixed, superactive, mesic Aquollic Hapludalfs

 Dunkerton----------------|Coarse-loamy, mixed, superactive, mesic Aquollic Hapludalfs

 Ely----------------------|Fine-silty, mixed, superactive, mesic Aquic Cumulic Hapludolls

 Emeline------------------|Loamy, mixed, superactive, mesic Lithic Hapludolls

 Finchford----------------|Sandy, mixed, mesic Entic Hapludolls

 Flagler------------------|Coarse-loamy, mixed, superactive, mesic Typic Hapludolls

 Floyd--------------------|Fine-loamy, mixed, superactive, mesic Aquic Hapludolls

 Franklin-----------------|Fine-silty, mixed, superactive, mesic Udollic Endoaqualfs

 Hayfield-----------------|Fine-loamy over sandy or sandy-skeletal, mixed, superactive, mesic Aquollic Hapludalfs

 Kenyon-------------------|Fine-loamy, mixed, superactive, mesic Typic Hapludolls

 Klinger------------------|Fine-silty, mixed, superactive, mesic Aquic Hapludolls

 Klingmore----------------|Fine-silty, mixed, superactive, mesic Aquic Hapludolls

 Klossner-----------------|Loamy, mixed, euic, mesic Terric Haplosaprists

 Lawler-------------------|Fine-loamy over sandy or sandy-skeletal, mixed, superactive, mesic Aquic Hapludolls

 Lilah--------------------|Mixed, mesic Psammentic Hapludalfs

 Lourdes------------------|Fine-loamy, mixed, superactive, mesic Aquollic Hapludalfs

 Marquis------------------|Fine-loamy, mixed, superactive, mesic Oxyaquic Hapludolls

 Marshan------------------|Fine-loamy over sandy or sandy-skeletal, mixed, superactive, mesic Typic Endoaquolls

 Maxfield-----------------|Fine-silty, mixed, superactive, mesic Typic Endoaquolls

 Maxmore------------------|Fine-silty, mixed, superactive, mesic Typic Endoaquolls

 Nevin--------------------|Fine-silty, mixed, superactive, mesic Aquic Argiudolls

 Olin---------------------|Coarse-loamy, mixed, superactive, mesic Typic Hapludolls

 Oran---------------------|Fine-loamy, mixed, superactive, mesic Aquollic Hapludalfs

 Protivin-----------------|Fine-loamy, mixed, superactive, mesic Aquic Argiudolls

 Readlyn------------------|Fine-loamy, mixed, superactive, mesic Aquic Hapludolls

 Riceville----------------|Fine-loamy, mixed, superactive, mesic Udollic Endoaqualfs

 Rockton------------------|Fine-loamy, mixed, superactive, mesic Typic Argiudolls

 Sattre-------------------|Fine-loamy over sandy or sandy-skeletal, mixed, superactive, mesic Mollic Hapludalfs

 Saude--------------------|Coarse-loamy over sandy or sandy-skeletal, mixed, superactive, mesic Typic Hapludolls

 Sawmill------------------|Fine-silty, mixed, superactive, mesic Cumulic Endoaquolls

 Sigglekov----------------|Sandy, mixed, mesic Aquic Udorthents

 Sparta-------------------|Sandy, mixed, mesic Entic Hapludolls

 Spillville---------------|Fine-loamy, mixed, superactive, mesic Cumulic Hapludolls

 Tripoli------------------|Fine-loamy, mixed, superactive, mesic Typic Endoaquolls

 Wapsie-------------------|Coarse-loamy over sandy or sandy-skeletal, mixed, superactive, mesic Mollic Hapludalfs

 Watseka------------------|Sandy, mixed, mesic Aquic Hapludolls

 Waubeek------------------|Fine-silty, mixed, superactive, mesic Mollic Hapludalfs

 Waukee-------------------|Fine-loamy over sandy or sandy-skeletal, mixed, superactive, mesic Typic Hapludolls

 Wiota--------------------|Fine-silty, mixed, superactive, mesic Typic Argiudolls

 | __________________________________________________________________________________________________________________________