United States

Department of

Agriculture

Natural

Resources

Conservation

Service

Soil Survey of

Rock Island

County, Illinois

In cooperation with Illinois

Agricultural Experiment

Station
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 helpdesk@helpdesk.itc.nrcs.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
This publication consists of a manuscript and a set of soil maps. The information provided 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

Numerical Index to Map Units, which lists the map units by symbol and name and shows the page where each

map unit is described. The map unit symbols and names also appear as bookmarks, which link directly to the

appropriate page in the publication.

The Contents shows which table has data on a specific land use for each soil map unit. Also see the Contents for

other sections of this publication that may address your specific needs.

3

How To Use This Soil Survey
4

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 1998. Soil names and

descriptions were approved in 1998. Unless otherwise indicated, statements in this

publication refer to conditions in the survey area in 1998. This survey was made

cooperatively by the Natural Resources Conservation Service and the Illinois

Agricultural Experiment Station. It is part of the technical assistance furnished to the

Rock Island County Soil and Water Conservation District. Financial assistance was

provided by the Rock Island County Board and the Illinois Department of Agriculture.

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

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

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

larger scale.

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

its programs on the basis of race, color, national origin, gender, religion, age, disability,

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

apply to all programs.) Persons with disabilities who require alternative means for

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

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

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

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

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

provider and employer.

Cover: A view from the loess hill bluffs overlooking the Mississippi River Valley.
5

Contents

How To Use This Soil Survey ................................. 3

Numerical Index to Map Units ............................. 10

Foreword ............................................................... 13

General Nature of the Survey Area......................... 15

Settlement, Industry, and Farming ...................... 15

Relief, Physiography, and Drainage .................... 16

Climate ............................................................... 17

How This Survey Was Made ................................... 18

Formation and Classification of the Soils .......... 21

Factors of Soil Formation ................................... 21

Parent Material ............................................... 21

Living Organisms ........................................... 21

Climate........................................................... 21

Topography .................................................... 21

Time ............................................................... 22

Classification of the Soils.................................... 22

Soil Series and Detailed Soil Map Units.............. 25

Ambraw Series ................................................... 26

8302A—Ambraw loam, 0 to 2 percent

slopes, occasionally flooded ........................ 27

Atlas Series ........................................................ 27

Atterberry Series ................................................ 28

61A—Atterberry silt loam, 0 to 2 percent

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

Biggsville Series ................................................. 30

671A—Biggsville silt loam, 0 to 2 percent

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

671B—Biggsville silt loam, 2 to 5 percent

slopes .......................................................... 31

Birds Series ........................................................ 31

1334A—Birds silt loam, undrained, 0 to 2

percent slopes, frequently flooded ............... 32

Bold Series ......................................................... 32

Buckhart Series .................................................. 33

705A—Buckhart silt loam, 0 to 2 percent

slopes .......................................................... 34

Burkhardt Series ................................................ 34

961A—Burkhardt-Saude complex, 0 to 2

percent slopes ............................................. 35

Calco Series ....................................................... 35

1400A—Calco silty clay loam, undrained,

0 to 2 percent slopes, frequently flooded ..... 36

3400A—Calco silty clay loam, 0 to 2 percent

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

8400A—Calco silty clay loam, 0 to 2 percent

slopes, occasionally flooded ........................ 37

Chute Series ...................................................... 37

Coatsburg Series ............................................... 38

Coffeen Series ................................................... 39

3428A—Coffeen silt loam, 0 to 2 percent

slopes, frequently flooded ............................ 40

7428A—Coffeen silt loam, 0 to 2 percent

slopes, rarely flooded ................................... 40

Coloma Series.................................................... 41

689B—Coloma sand, 1 to 7 percent slopes ....... 41

689D—Coloma sand, 7 to 15 percent

slopes .......................................................... 42

Coyne Series ...................................................... 42

764A—Coyne fine sandy loam, 0 to 2

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

764C—Coyne fine sandy loam, 5 to 10

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

Denny Series...................................................... 44

45A—Denny silt loam, 0 to 2 percent slopes ...... 45

Dickinson Series ................................................ 46

87A—Dickinson sandy loam, 0 to 2 percent

slopes .......................................................... 46

87C2—Dickinson sandy loam, 5 to 10

percent slopes, eroded ................................ 47

Dorchester Series .............................................. 47

3239A—Dorchester silt loam, 0 to 2 percent

slopes, frequently flooded ............................ 48

7239A—Dorchester silt loam, 0 to 2 percent

slopes, rarely flooded ................................... 48

Elkhart Series ..................................................... 49

567C2—Elkhart silt loam, 5 to 10 percent

slopes, eroded ............................................. 50

567D2—Elkhart silt loam, 10 to 18 percent

slopes, eroded ............................................. 50

Fayette Series .................................................... 51

280B—Fayette silt loam, 2 to 5 percent

slopes .......................................................... 51

280B2—Fayette silt loam, 2 to 5 percent

slopes, eroded ............................................. 52
6

280C2—Fayette silt loam, 5 to 10 percent

slopes, eroded ............................................. 52

280C3—Fayette silty clay loam, 5 to 10

percent slopes, severely eroded .................. 53

3646L—Fluvaquents, loamy, 0 to 2 percent

slopes, frequently flooded, long duration ...... 53

Greenbush Series .............................................. 54

675A—Greenbush silt loam, 0 to 2 percent

slopes .......................................................... 55

675B—Greenbush silt loam, 2 to 5 percent

slopes .......................................................... 55

Hickory Series .................................................... 56

8D2—Hickory silt loam, 10 to 18 percent

slopes, eroded ............................................. 57

8D3—Hickory clay loam, 10 to 18 percent

slopes, severely eroded ............................... 57

8F—Hickory silt loam, 18 to 35 percent

slopes .......................................................... 58

8F3—Hickory clay loam, 18 to 35 percent

slopes, severely eroded ............................... 58

898F3—Hickory-Sylvan complex, 18 to 35

percent slopes, severely eroded .................. 59

898G—Hickory-Sylvan silt loams, 35 to 60

percent slopes ............................................. 59

946D3—Hickory-Atlas complex, 10 to 18

percent slopes, severely eroded .................. 60

946F3—Hickory-Atlas complex, 18 to 35

percent slopes, severely eroded .................. 61

960D2—Hickory-Sylvan-Fayette silt loams,

10 to 18 percent slopes, eroded................... 61

960D3—Hickory-Sylvan-Fayette complex,

10 to 18 percent slopes, severely eroded..... 62

960F—Hickory-Sylvan-Fayette silt loams,

18 to 30 percent slopes................................ 63

Hoopeston Series ............................................... 64

172A—Hoopeston sandy loam, 0 to 2

percent slopes ............................................. 65

Joslin Series ....................................................... 65

525A—Joslin loam, bedrock substratum,

0 to 2 percent slopes.................................... 66

763A—Joslin silt loam, 0 to 2 percent

slopes .......................................................... 66

763B—Joslin silt loam, 2 to 5 percent

slopes .......................................................... 67

Joy Series .......................................................... 67

275A—Joy silt loam, 0 to 2 percent slopes ......... 68

Landes Series .................................................... 69

7304A—Landes fine sandy loam, 0 to 2

percent slopes, rarely flooded ...................... 69

Lawler Series ..................................................... 70

647A—Lawler loam, 0 to 2 percent slopes ......... 71

Lawson Series .................................................... 71

3451A—Lawson silt loam, 0 to 2 percent

slopes, frequently flooded ............................ 72

7451A—Lawson silt loam, 0 to 2 percent

slopes, rarely flooded ................................... 72

Marseilles Series ................................................ 72

913D2—Marseilles-Hickory silt loams, 10

to 18 percent slopes, eroded........................ 73

913F—Marseilles-Hickory silt loams, 18 to

35 percent slopes ........................................ 74

913G—Marseilles-Hickory silt loams, 35 to

60 percent slopes ........................................ 75

Martinsville Series .............................................. 75

570B—Martinsville silt loam, 2 to 5 percent

slopes .......................................................... 76

570C3—Martinsville clay loam, 5 to 10

percent slopes, severely eroded .................. 77

570D3—Martinsville clay loam, 10 to 18

percent slopes, severely eroded .................. 77

Millington Series ................................................. 78

1082A—Millington silt loam, undrained,

0 to 2 percent slopes, frequently flooded ..... 78

3082A—Millington silt loam, 0 to 2 percent

slopes, frequently flooded ............................ 79

Millsdale Series .................................................. 79

317A—Millsdale silty clay loam, 0 to 2

percent slopes ............................................. 80

M-W—Miscellaneous water................................ 80

Moline Series ..................................................... 80

1654A—Moline silty clay, undrained, 0 to 2

percent slopes, frequently flooded ............... 81

7654A—Moline silty clay, 0 to 2 percent

slopes, rarely flooded ................................... 81
7

Muscatune Series .............................................. 82

51A—Muscatune silt loam, 0 to 2 percent

slopes .......................................................... 83

Niota Series........................................................ 83

261A—Niota silt loam, 0 to 2 percent

slopes .......................................................... 84

Oakville Series ................................................... 85

741F—Oakville fine sand, 20 to 30 percent

slopes .......................................................... 85

917C2—Oakville-Tell complex, 5 to 10

percent slopes, eroded ................................ 85

917D2—Oakville-Tell complex, 10 to 18

percent slopes, eroded ................................ 86

Orion Series ....................................................... 87

3415A—Orion silt loam, 0 to 2 percent

slopes, frequently flooded ............................ 87

7415A—Orion silt loam, 0 to 2 percent

slopes, rarely flooded ................................... 88

802B—Orthents, loamy, undulating .................... 88

Osco Series ....................................................... 89

86B—Osco silt loam, 2 to 5 percent slopes ........ 90

86C2—Osco silt loam, 5 to 10 percent

slopes, eroded ............................................. 90

Otter Series ........................................................ 91

1076A—Otter silt loam, undrained, 0 to 2

percent slopes, frequently flooded ............... 91

3076A—Otter silt loam, 0 to 2 percent slopes,

frequently flooded ........................................ 92

7076A—Otter silt loam, 0 to 2 percent slopes,

rarely flooded ............................................... 92

864—Pits, quarries ............................................. 93

865—Pits, gravel ................................................ 93

800C—Psamments, sloping ............................... 93

Raddle Series..................................................... 93

430A—Raddle silt loam, 0 to 2 percent

slopes .......................................................... 94

430B—Raddle silt loam, 2 to 5 percent

slopes .......................................................... 95

Radford Series ................................................... 95

3074A—Radford silt loam, 0 to 2 percent

slopes, frequently flooded ............................ 96

Rozetta Series.................................................... 96

279A—Rozetta silt loam, 0 to 2 percent

slopes .......................................................... 97

279B—Rozetta silt loam, 2 to 5 percent

slopes .......................................................... 97

Sable Series ....................................................... 98

68A—Sable silty clay loam, 0 to 2 percent

slopes .......................................................... 99

Saude Series...................................................... 99

774A—Saude loam, 0 to 2 percent slopes ....... 100

Sawmill Series .................................................. 100

1107A—Sawmill silty clay loam, undrained,

0 to 2 percent slopes, frequently

flooded ....................................................... 101

3107A—Sawmill silty clay loam, 0 to 2

percent slopes, frequently flooded ............. 101

7107A—Sawmill silty clay loam, 0 to 2

percent slopes, rarely flooded .................... 102

8107+—Sawmill silt loam, 0 to 2 percent

slopes, occasionally flooded, overwash ..... 102

Seaton Series................................................... 103

274B—Seaton silt loam, 2 to 5 percent

slopes ........................................................ 104

274B2—Seaton silt loam, 2 to 5 percent

slopes, eroded ........................................... 104

274C2—Seaton silt loam, 5 to 10 percent

slopes, eroded ........................................... 105

274D2—Seaton silt loam, 10 to 18 percent

slopes, eroded ........................................... 105

943D2—Seaton-Timula silt loams, 10 to 18

percent slopes, eroded .............................. 105

943F2—Seaton-Timula silt loams, 18 to 35

percent slopes, eroded .............................. 106

Sparta Series ................................................... 107

88A—Sparta loamy sand, 0 to 2 percent

slopes ........................................................ 107

Strawn Series ................................................... 108

959G—Strawn-Chute complex, 18 to 60

percent slopes ........................................... 108

Stronghurst Series ........................................... 109

278A—Stronghurst silt loam, 0 to 2 percent

slopes ........................................................ 110

Sylvan Series ................................................... 110
8

19C3—Sylvan silty clay loam, 5 to 10

percent slopes, severely eroded ................ 111

19D—Sylvan silt loam, 10 to 18 percent

slopes ........................................................ 112

19D3—Sylvan silty clay loam, 10 to 18

percent slopes, severely eroded ................ 112

19F—Sylvan silt loam, 18 to 35 percent

slopes ........................................................ 113

19F3—Sylvan silty clay loam, 18 to 35

percent slopes, severely eroded ................ 113

962F—Sylvan-Bold silt loams, 18 to 35

percent slopes ........................................... 114

Tell Series......................................................... 114

Thebes Series .................................................. 115

212B—Thebes silt loam, 2 to 5 percent

slopes ........................................................ 116

Timula Series ................................................... 116

Titus Series ...................................................... 117

8404A—Titus silty clay loam, 0 to 2 percent

slopes, occasionally flooded ...................... 118

Velma Series .................................................... 119

250D—Velma silt loam, 10 to 18 percent

slopes ........................................................ 119

944D2—Velma-Coatsburg silt loams, 10 to

18 percent slopes, eroded ......................... 120

Wabash Series ................................................. 120

3083A—Wabash silty clay, 0 to 2 percent

slopes, frequently flooded .......................... 121

7083A—Wabash silty clay, 0 to 2 percent

slopes, rarely flooded ................................. 122

Waukee Series ................................................. 122

727A—Waukee loam, 0 to 2 percent

slopes ........................................................ 123

Use and Management of the Soils .................... 125

Interpretive Ratings .......................................... 125

Rating Class Terms ...................................... 125

Numerical Ratings........................................ 125

Crops and Pasture ........................................... 125

Crop Yield Estimates .................................... 126

Land Capability Classification ...................... 126

Prime Farmland ........................................... 127

Forestland Management and Productivity ........ 127

Windbreaks and Environmental Plantings ........ 129

Recreation ........................................................ 130

Wildlife Habitat ................................................. 131

Hydric Soils ...................................................... 132

Engineering ...................................................... 133

Building Site Development ........................... 133

Sanitary Facilities ......................................... 134

Construction Materials ................................. 136

Water Management...................................... 137

Soil Properties .................................................... 139

Engineering Index Properties ........................... 139

Physical Properties .......................................... 140

Chemical Properties ......................................... 141

Water Features ................................................. 141

Soil Features .................................................... 142

References .......................................................... 145

Glossary .............................................................. 147

Tables .................................................................. 157

Table 1.—Temperature and Precipitation .......... 158

Table 2.—Freeze Dates in Spring and Fall........ 159

Table 3.—Growing Season ............................... 159

Table 4.—Classification of the Soils .................. 160

Table 5.—Acreage and Proportionate

Extent of the Soils ...................................... 162

Table 6.—Land Capability and Yields per

Acre of Crops and Pasture ......................... 164

Table 7.—Prime Farmland ................................ 170

Table 8.—Forestland Productivity ..................... 172

Table 9a.—Forestland Management ................. 177

Table 9b.—Forestland Management ................. 182

Table 9c.—Forestland Management ................. 187

Table 9d.—Forestland Management ................. 191

Table 9e.—Forestland Management ................. 194

Table 10.—Windbreaks and Environmental

Plantings .................................................... 196

Table 11a.—Recreation .................................... 220

Table 11b.—Recreation .................................... 230

Table 12.—Wildlife Habitat ................................ 239

Table 13.—Hydric Soils .................................... 246

Table 14a.—Building Site Development ............ 249

Table 14b.—Building Site Development ............ 260

Table 15.—Sanitary Facilities ........................... 273

Table 16.—Construction Materials .................... 292

Table 17a.—Water Management ...................... 312
9

Table 17b.—Water Management ...................... 323

Table 18.—Engineering Index Properties ......... 336

Table 19.—Physical Properties of the Soils ...... 360

Table 20.—Chemical Properties of the Soils..... 371

Table 21.—Water Features ............................... 382

Table 22.—Soil Features .................................. 389

Issued 2004
10

8D2—Hickory silt loam, 10 to 18 percent

slopes, eroded .................................................... 57

8D3—Hickory clay loam, 10 to 18 percent

slopes, severely eroded...................................... 57

8F—Hickory silt loam, 18 to 35 percent

slopes................................................................. 58

8F3—Hickory clay loam, 18 to 35 percent

slopes, severely eroded...................................... 58

19C3—Sylvan silty clay loam, 5 to 10 percent

slopes, severely eroded.................................... 111

19D—Sylvan silt loam, 10 to 18 percent

slopes............................................................... 112

19D3—Sylvan silty clay loam, 10 to 18 percent

slopes, severely eroded.................................... 112

19F—Sylvan silt loam, 18 to 35 percent

slopes............................................................... 113

19F3—Sylvan silty clay loam, 18 to 35 percent

slopes, severely eroded.................................... 113

45A—Denny silt loam, 0 to 2 percent

slopes................................................................. 45

51A—Muscatune silt loam, 0 to 2 percent

slopes................................................................. 83

61A—Atterberry silt loam, 0 to 2 percent

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

68A—Sable silty clay loam, 0 to 2 percent

slopes................................................................. 99

86B—Osco silt loam, 2 to 5 percent slopes ............ 90

86C2—Osco silt loam, 5 to 10 percent slopes,

eroded ................................................................ 90

87A—Dickinson sandy loam, 0 to 2 percent

slopes................................................................. 46

87C2—Dickinson sandy loam, 5 to 10 percent

slopes, eroded .................................................... 47

88A—Sparta loamy sand, 0 to 2 percent

slopes............................................................... 107

172A—Hoopeston sandy loam, 0 to 2 percent

slopes................................................................. 65

212B—Thebes silt loam, 2 to 5 percent

slopes............................................................... 116

250D—Velma silt loam, 10 to 18 percent

slopes............................................................... 119

261A—Niota silt loam, 0 to 2 percent slopes .......... 84

274B—Seaton silt loam, 2 to 5 percent

slopes............................................................... 104

274B2—Seaton silt loam, 2 to 5 percent

slopes, eroded .................................................. 104

274C2—Seaton silt loam, 5 to 10 percent

slopes, eroded .................................................. 105

274D2—Seaton silt loam, 10 to 18 percent

slopes, eroded .................................................. 105

275A—Joy silt loam, 0 to 2 percent slopes ............. 68

278A—Stronghurst silt loam, 0 to 2 percent

slopes............................................................... 110

279A—Rozetta silt loam, 0 to 2 percent

slopes................................................................. 97

279B—Rozetta silt loam, 2 to 5 percent

slopes................................................................. 97

280B—Fayette silt loam, 2 to 5 percent

slopes................................................................. 51

280B2—Fayette silt loam, 2 to 5 percent

slopes, eroded .................................................... 52

280C2—Fayette silt loam, 5 to 10 percent

slopes, eroded .................................................... 52

280C3—Fayette silty clay loam, 5 to 10

percent slopes, severely eroded ......................... 53

317A—Millsdale silty clay loam, 0 to 2 percent

slopes................................................................. 80

430A—Raddle silt loam, 0 to 2 percent

slopes................................................................. 94

430B—Raddle silt loam, 2 to 5 percent

slopes................................................................. 95

525A—Joslin loam, bedrock substratum,

0 to 2 percent slopes .......................................... 66

567C2—Elkhart silt loam, 5 to 10 percent

slopes, eroded .................................................... 50

567D2—Elkhart silt loam, 10 to 18 percent

slopes, eroded .................................................... 50

570B—Martinsville silt loam, 2 to 5 percent

slopes................................................................. 76

570C3—Martinsville clay loam, 5 to 10 percent

slopes, severely eroded...................................... 77

570D3—Martinsville clay loam, 10 to 18

percent slopes, severely eroded ......................... 77

647A—Lawler loam, 0 to 2 percent slopes ............. 71

671A—Biggsville silt loam, 0 to 2 percent

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

671B—Biggsville silt loam, 2 to 5 percent

slopes................................................................. 31

Numerical Index to Map Units
11

675A—Greenbush silt loam, 0 to 2 percent

slopes................................................................. 55

675B—Greenbush silt loam, 2 to 5 percent

slopes................................................................. 55

689B—Coloma sand, 1 to 7 percent slopes............ 41

689D—Coloma sand, 7 to 15 percent

slopes................................................................. 42

705A—Buckhart silt loam, 0 to 2 percent

slopes................................................................. 34

727A—Waukee loam, 0 to 2 percent slopes ......... 123

741F—Oakville fine sand, 20 to 30 percent

slopes................................................................. 85

763A—Joslin silt loam, 0 to 2 percent slopes ......... 66

763B—Joslin silt loam, 2 to 5 percent slopes ......... 67

764A—Coyne fine sandy loam, 0 to 2 percent

slopes................................................................. 43

764C—Coyne fine sandy loam, 5 to 10

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

774A—Saude loam, 0 to 2 percent

slopes............................................................... 100

800C—Psamments, sloping ................................... 93

802B—Orthents, loamy, undulating ........................ 88

864—Pits, quarries ................................................. 93

865—Pits, gravel .................................................... 93

898F3—Hickory-Sylvan complex, 18 to 35

percent slopes, severely eroded ......................... 59

898G—Hickory-Sylvan silt loams, 35 to 60

percent slopes .................................................... 59

913D2—Marseilles-Hickory silt loams, 10 to 18

percent slopes, eroded ....................................... 73

913F—Marseilles-Hickory silt loams, 18 to 35

percent slopes .................................................... 74

913G—Marseilles-Hickory silt loams, 35 to 60

percent slopes .................................................... 75

917C2—Oakville-Tell complex, 5 to 10 percent

slopes, eroded .................................................... 85

917D2—Oakville-Tell complex, 10 to 18

percent slopes, eroded ....................................... 86

943D2—Seaton-Timula silt loams, 10 to 18

percent slopes, eroded ..................................... 105

943F2—Seaton-Timula silt loams, 18 to 35

percent slopes, eroded ..................................... 106

944D2—Velma-Coatsburg silt loams, 10 to 18

percent slopes, eroded ..................................... 120

946D3—Hickory-Atlas complex, 10 to 18

percent slopes, severely eroded ......................... 60

946F3—Hickory-Atlas complex, 18 to 35

percent slopes, severely eroded ......................... 61

959G—Strawn-Chute complex, 18 to 60

percent slopes .................................................. 108

960D2—Hickory-Sylvan-Fayette silt loams,

10 to 18 percent slopes, eroded ......................... 61

960D3—Hickory-Sylvan-Fayette complex,

10 to 18 percent slopes, severely eroded ........... 62

960F—Hickory-Sylvan-Fayette silt loams, 18

to 30 percent slopes ........................................... 63

961A—Burkhardt-Saude complex, 0 to 2

percent slopes .................................................... 35

962F—Sylvan-Bold silt loams, 18 to 35

percent slopes .................................................. 114

1076A—Otter silt loam, undrained, 0 to 2

percent slopes, frequently flooded ...................... 91

1082A—Millington silt loam, undrained, 0 to 2

percent slopes, frequently flooded ...................... 78

1107A—Sawmill silty clay loam, undrained,

0 to 2 percent slopes, frequently flooded .......... 101

1334A—Birds silt loam, undrained, 0 to 2

percent slopes, frequently flooded ...................... 32

1400A—Calco silty clay loam, undrained, 0 to 2

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

1654A—Moline silty clay, undrained, 0 to 2

percent slopes, frequently flooded ...................... 81

3074A—Radford silt loam, 0 to 2 percent

slopes, frequently flooded................................... 96

3076A—Otter silt loam, 0 to 2 percent slopes,

frequently flooded ............................................... 92

3082A—Millington silt loam, 0 to 2 percent

slopes, frequently flooded................................... 79

3083A—Wabash silty clay, 0 to 2 percent

slopes, frequently flooded................................. 121

3107A—Sawmill silty clay loam, 0 to 2 percent

slopes, frequently flooded................................. 101

3239A—Dorchester silt loam, 0 to 2 percent

slopes, frequently flooded................................... 48

3400A—Calco silty clay loam, 0 to 2 percent

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

3415A—Orion silt loam, 0 to 2 percent slopes,

frequently flooded ............................................... 87
12

3428A—Coffeen silt loam, 0 to 2 percent

slopes, frequently flooded................................... 40

3451A—Lawson silt loam, 0 to 2 percent

slopes, frequently flooded................................... 72

3646L—Fluvaquents, loamy, 0 to 2 percent

slopes, frequently flooded, long

duration .............................................................. 53

7076A—Otter silt loam, 0 to 2 percent slopes,

rarely flooded ..................................................... 92

7083A—Wabash silty clay, 0 to 2 percent

slopes, rarely flooded ....................................... 122

7107A—Sawmill silty clay loam, 0 to 2 percent

slopes, rarely flooded ....................................... 102

7239A—Dorchester silt loam, 0 to 2 percent

slopes, rarely flooded ......................................... 48

7304A—Landes fine sandy loam, 0 to 2 percent

slopes, rarely flooded ......................................... 69

7415A—Orion silt loam, 0 to 2 percent slopes,

rarely flooded ..................................................... 88

7428A—Coffeen silt loam, 0 to 2 percent

slopes, rarely flooded ......................................... 40

7451A—Lawson silt loam, 0 to 2 percent

slopes, rarely flooded ......................................... 72

7654A—Moline silty clay, 0 to 2 percent

slopes, rarely flooded ......................................... 81

8107+—Sawmill silt loam, 0 to 2 percent

slopes, occasionally flooded, overwash ............ 102

8302A—Ambraw loam, 0 to 2 percent

slopes, occasionally flooded ............................... 27

8400A—Calco silty clay loam, 0 to 2 percent

slopes, occasionally flooded ............................... 37

8404A—Titus silty clay loam, 0 to 2 percent

slopes, occasionally flooded ............................. 118

M-W—Miscellaneous water .................................... 80
13

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. 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.

William J. Gradle

State Conservationist

Natural Resources Conservation Service

Foreword

15

ROCK ISLAND COUNTY is in northwestern Illinois

(fig. 1). It has a total area of about 288,910 acres, or

451 square miles. It is bounded by Whiteside and

Henry Counties on the east, by Mercer County on the

south, and by the Mississippi River on the west and

north.

This soil survey updates the survey of Rock Island

County published in 1977 (Acker, 1977). It provides

additional information and has larger maps, which

show the soils in greater detail.

General Nature of the Survey Area

This section provides some general information

about the survey area. It describes settlement,

industry, and farming; relief, physiography, and

drainage; and climate.

Settlement, Industry, and Farming

This section was originally written by the late Emil Kubalek,

former district conservationist, Rock Island County.

Rock Island County was established in 1831. In

2000, the population of the county was 149,374 and

that of Rock Island, the county seat, was 39,684 (U.S.

Department of Commerce, 2002).

The center of the county is part of the metropolitan

complex known as the Quad Cities. This metropolitan

area includes Davenport and Bettendorf in Iowa and

Rock Island and Moline in Illinois.

The county has a well developed transportation

system. Interstate Highway 74 and U.S. Highways 6,

67, and 150 bisect the county from north to south.

Interstate 80 and Interstate 280 cross the county from

east to west. The county also has several State roads.

The main secondary roads are blacktop. Railroads

furnish freight service to the county. Facilities for

loading commodities onto river barges are available

along the Mississippi River. The Quad City Airport

offers connections to all points throughout the United

States.

The Quad Cities is considered the “tractor capital of

the world.” The county has several small industries and

is also the home of the U.S. Army Weapons

Command, Rock Island Arsenal. Several limestone

quarries and gravel pits provide crushed rock for

roads, finely ground material for limestone application

on fields, and sand and gravel for building materials.

Hybrid seed corn is produced in the county. Cordova

Township also has a large industrial complex. The

nuclear generating station in Cordova Township

provides power for much of east-central Iowa and

northwestern Illinois and generates power for the

Chicago metropolitan region.

The Quad Cities area offers many educational

Soil Survey of

Rock Island County, Illinois

By Steve Elmer, Natural Resources Conservation Service

Original fieldwork by L.L. Acker, R.D. Busby, L.A. Dungan, G.T. Keller, R. Rehner,

L.M. Reinebach, J.A. Thompson, and S.E. Zwicker

Updated fieldwork by Steve Elmer and Dave Preloger, Natural Resources Conservation

Service

Compilation and resource analysis by Steve Elmer, Frank Heisner, Amy Kuhel, Dave

Preloger, and Jonathan Wald, Natural Resources Conservation Service

United States Department of Agriculture, Natural Resources Conservation Service,

in cooperation with the Illinois Agricultural Experiment Station
16 Soil Survey of

facilities. Augustana College, Western Illinois

University, and Blackhawk Junior College are on the

Illinois side of the Mississippi River. St. Ambrose

College and Scott County Junior College are on the

Iowa side of the river.

Farming has been a major enterprise in Rock Island

County since its settlement. In 2000, there were 318

farms in the county (Illinois Agricultural Statistics

Service, 2001). Crops and livestock are raised in the

survey area.

Corn and soybeans are the main crops. In 2000,

the acreage used for corn was 65,000 and the

acreage used for soybeans was 55,000 (Illinois

Agricultural Statistics Service, 2001). Small grain and

hay also are grown in the county, and there are several

apple orchards.

The total number of cattle in 2000 was 11,000, and

the total number of swine was 35,900 (Illinois

Agricultural Statistics Service, 2001). Sheep and

chickens also are raised.

Relief, Physiography, and Drainage

Dr. Richard C. Anderson, retired, Department of Geology,

Augustana College, helped prepare this section.

The topography of Rock Island County consists of

upland plains, highly dissected valley sides, terraces,

and flood plains (fig. 2). Although the county was

covered by glaciers that greatly modified the preexisting landscape, the present topography is almost

entirely the result of stream erosion (Willman and

Frye, 1970). Thus the upland plains represent a gently

rolling surface produced by glacial deposition, and the

LEGEND

95B—Southern Wisconsin and Northern Illinois Drift

Plain

98—Southern Michigan and Northern Indiana Drift

Plain

105—Northern Mississippi Valley Loess Hills

108A and 108B—Illinois and Iowa Deep Loess and

Drift

110—Northern Illinois and Indiana Heavy Till Plain

113—Central Claypan Area

114B—Southern Illinois and Indiana Thin Loess and

Till Plain

115A, 115B, and 115C—Central Mississippi Valley

Wooded Slopes

120A—Kentucky and Indiana Sandstone and Shale

Hills and Valleys

131A—Southern Mississippi Valley Alluvium

134—Southern Mississippi Valley Silty Uplands

Figure 1.—Location of Rock Island County and major land resource areas (MLRAs) in Illinois.
Rock Island County, Illinois 17

flood plains and dissected valley sides are the result of

subsequent stream erosion (Leighton and Brophy,

1961).

The upland plains are at elevations of 750 to 790

feet between the Mississippi River and Copperas and

Mill Creeks. They are at an elevation of about 810 feet

south of Copperas and Mill Creeks and at an elevation

of about 700 feet in Coe Township at the northern end

of the county. The upland areas are remnants of a

once-continuous glacial plain that extended far to the

south and east (Leighton and Brophy, 1961). Although

largely of glacial origin, the upland areas are covered

with 30 feet or more of wind-deposited loess. In most

places the loess is simply a veneer without a

topographic expression of its own, but in Coe

Township it has been deposited in long, narrow ridges

as much as 50 feet high that give the topography a

distinct northwest-southeast orientation. Sand dunes

are on uplands in the extreme western part of the

county and in Coe Township.

The flood plains are chiefly along the Mississippi

and Rock Rivers and on the Meredosia bottom lands.

The elevation on the flood plains ranges from 540 feet

at the southwestern end of the county to 610 feet on

the sand plains in the northern part. Flood plains are

the floors of the valleys cut by the streams. The lower

areas are subject to periodic flooding. The flood plains

are underlain by water-deposited sand, silt, and clay.

They are relatively shallow over limestone and shale

bedrock. In the extreme northern end of the county,

however, bedrock is at a depth of more than 100 feet.

Sand and silt terraces are common on the flood plains.

Erosion by tributaries of the Mississippi and Rock

Rivers has produced highly dissected topography

adjacent to these main streams. In many places the

local relief varies by more than 200 feet. Steep slopes

cause landslides and soil instability.

The Mississippi River serves as the water source

for Rock Island, Moline, and East Moline, and the

smaller towns and rural areas are supplied by wells

pumping from limestone crevices at depths of 100 to

300 feet.

Climate

Table 1 gives data on temperature and precipitation

for the survey area as recorded at Moline during the

period 1971 to 2000. Table 2 shows probable dates of

the first freeze in fall and the last freeze in spring.

Table 3 provides data on length of the growing season.

Figure 2.—A physiographic map of Rock Island County.
18 Soil Survey of

In winter, the average temperature is 25 degrees F

and the average daily minimum temperature is 16

degrees. The lowest temperature on record, which

occurred at Moline on February 3, 1996, is -28

degrees. In summer, the average temperature is 73

degrees and the average daily maximum temperature

is 84 degrees. The highest recorded temperature,

which occurred at Moline on August 18, 1936, is 106

degrees.

Growing degree 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.

Total annual precipitation is 38.04 inches. Of this

total, 24.30 inches, or about 64 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 11.85

inches. The heaviest 1-day rainfall during the period of

record was 6.21 inches.

The average seasonal snowfall is 33.7 inches. The

greatest snow depth at any one time during the period

of record was 29 inches. On average, 47 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

Rock Island County, which is a subset of Major Land

Resource Areas 108B and 115C (fig. 1). Major land

resource areas (MLRAs) are geographically

associated land resource units that share a common

land use, elevation, topography, climate, water, soils,

and vegetation (USDA, 1981). Map unit design and the

soil descriptions are based on the occurrence of each

soil throughout the MLRA. In some cases a soil may

be referred to that was not mapped in the Rock Island

County subset but that is representative of the MLRA.

The information includes a description 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
Rock Island County, Illinois 19

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 seasonal high

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.

21

This section relates the soils in the survey area to

the major factors of soil formation and describes the

system of soil classification.

Factors of Soil Formation

The principal factors of soil formation are parent

material, climate, plant and animal life, topography,

and time (Jenny, 1941). The relative importance of

each factor differs from place to place, and each factor

modifies the effect of the other four. In some cases

one factor may dominate the formation of a soil.

Human activities, such as clearing forests, cultivating

the soils, and using fertilizers, also change the course

of soil formation.

Parent Material

Peoria loess is the predominant parent material of

the soils in Rock Island County (University of Illinois,

1971). The Mississippi River Valley was the main

source of the loess. The loess is about 30 feet thick on

nearly level uplands. Muscatune and Rozetta soils

formed in these thick deposits of loess. In areas on

slopes where the loess is thin or has been removed by

erosion, the soils formed in such parent material as

Illinoian till or Pennsylvania shale. Hickory soils formed

in Illinoian till, and Marseilles soils formed in

Pennsylvania shale.

Terraces are in the valleys of the Mississippi and

Rock Rivers and in the valleys of the larger creeks. On

some of these terraces, Niota and Moline soils formed

in fine textured sediment. On other terraces, Sparta

and Dickinson soils formed in sandy parent material.

Medium and moderately fine textured soils formed

in alluvium in the valleys of the Mississippi and Rock

Rivers. Coffeen and Sawmill soils are common in

these river valleys. In the smaller valleys, soils formed

mainly in recent medium textured sediment washed

from the uplands. Dorchester, Radford, and Orion soils

are examples.

Living Organisms

Plants have had a greater effect than animals on

the formation of soils in the survey area, but the

animals and organisms that live on and in the soils

also have been important. The changes they bring

about depend mainly on the kind of life processes

distinctive to each. The kinds of plants and animals

that live on and in the soils are affected, in turn, by the

climate, the parent material, the topography, and the

age of the soil.

Some soils in the county formed under trees, and

others formed under prairie grasses. Most of the

sloping soils formed mainly under such trees as oak

and hickory. The nearly level soils formed under prairie

grasses. These soils have a darker, thicker surface

layer than that of the soils that formed under forest

vegetation and have a higher content of organic

matter.

Climate

Climate affects the formation of soils through its

influence on the rate of weathering of parent material.

The humid, temperate climate of the county

contributes to the relatively rapid breakdown of soil

minerals, to the formation of clay, and to the movement

of these materials downward in the soil profile. Most of

the upland soils in the county have considerably more

clay in the subsoil than in the surface layer.

Topography

Relief influences the amount of runoff, the degree of

erosion, and the amount of water infiltrating and

percolating through the soil profile. Where the soils

formed in uniform, permeable parent materials, such

as loess, natural drainage is closely associated with

slope. The moderately well drained and well drained

soils are in the more rolling areas, and the somewhat

poorly drained to very poorly drained soils are mainly

Formation and Classification of the Soils
22 Soil Survey of

on flats or in depressions. Slopes in the county range

from less than 2 percent on the bottom land and in the

nearly level uplands to more than 60 percent on the

steeper parts of the uplands that border valleys.

Time

The length of time necessary for the development

of a soil depends on the other factors of soil formation.

Soils that formed in parent material low in calcium

(lime) develop more readily and become acid more

readily than soils that formed in material high in

calcium. Permeable soils are leached of calcium and

other soluble minerals much more rapidly than slowly

permeable soils. Soils form more quickly under forest

vegetation than under prairie vegetation because

grasses are more efficient in recycling calcium and

other bases from the subsoil to the surface layer. Soils

generally form more quickly in a humid climate than in

a dry climate.

In general, the longer the soils have been exposed

to weathering processes, the more strongly developed

they are and the more evidence they show of horizon

differentiation. Most of the soils on uplands are

moderately developed. The soils in the western and

northern parts of the county and on terraces, however,

are only weakly developed. Because there has not

been enough time for changes to take place, most of

the soils on bottom land have no horizon differentiation

or have only weakly expressed horizon differentiation.

Organic matter has accumulated in all of the soils.

Soils that formed under prairie vegetation have a

thicker, darker surface layer than that of the soils that

formed under forest vegetation. In the poorly drained

soils, iron compounds have been reduced and moved

downward in the profile. This process results in gray

colors in the subsoil. Some of this iron has

accumulated as concretions or small, round pellets. In

the well drained soils, the iron compounds are oxidized

and are generally more diffuse. They result in a

yellowish brown subsoil.

Classification of the Soils

The system of soil classification used by the

National Cooperative Soil Survey has six categories

(Soil Survey Staff, 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 4 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 Aquoll

(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; 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 is the central concept of the

great group; it is not necessarily the most extensive.

Intergrades are transitions to other orders, suborders,

or great groups. Extragrades have some properties

that are not representative of the great group but do

not indicate transitions to any other known kind of soil.

Each subgroup is identified by one or more adjectives

preceding the name of the great group. 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,

mineral content, cation-exchange capacity,

temperature regime, thickness of the root zone,

consistence, moisture equivalent, slope, and

permanent cracks. A family name consists of the

name of a subgroup preceded by terms that indicate

soil properties. An example is fine-silty, mixed,

superactive, mesic Typic Endoaquolls.
Rock Island County, Illinois 23

SERIES. The series consists of soils that have

similar horizons in their profile. The horizons are

similar in color, texture, structure, reaction,

consistence, mineral and chemical composition, and

arrangement in the profile. The texture of the surface

layer or of the substratum can differ within a series.

The Sable series is an example of a soil series in this

survey area.

25

In this section, arranged in alphabetical order, each

soil series recognized in the survey area is described.

Each series description is followed by detailed

descriptions of the associated soil map units.

Characteristics of the soil and the material in which

it formed are identified for each soil 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 “Keys to Soil Taxonomy”

(Soil Survey Staff, 1998). Unless otherwise stated,

colors in the descriptions are for moist soil. Following

the pedon description is the range of important

characteristics of the soils in the series.

The map units on the soil maps in this survey

represent the soils or miscellaneous areas in the

survey area. These soils or miscellaneous areas are

listed as individual components in the map unit

description. The map unit descriptions in this section,

along with the maps, can be used to determine the

suitability and potential of a unit for specific uses. They

also can be used to plan the management needed for

those uses. More information about each map unit is

given under the headings “Use and Management of

the Soils” and “Soil Properties.”

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 some of the soil

properties and qualities that may affect 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

Soil Series and Detailed Soil Map Units
26 Soil Survey of

divided into soil phases. Most of the areas shown on

the soil maps are phases of soil series. The name of a

soil phase commonly indicates a feature that affects

use or management. For example, Hickory silt loam,

10 to 18 percent slopes, eroded, is a phase of the

Hickory series.

A map unit is named for the component or

components that make up a dominant percentage of

the map unit. Many map units consist of one dominant

component. These map units are consociations. Sable

silty clay loam, 0 to 2 percent slopes, is an example.

Some map units are made up of two or more

dominant components. These map units are

complexes. A complex consists of two or more

components in such an intricate pattern or in such

small areas that they cannot be shown separately on

the maps. Attempting to delineate the individual

components of a complex would result in excessive

clutter that could make the map illegible. The pattern

and proportion of the components in a complex are

somewhat similar in all areas. Marseilles-Hickory silt

loams, 35 to 60 percent slopes, is an example.

This survey includes miscellaneous areas. Such

areas have little or no soil material and support little or

no vegetation. The map unit Pits, gravel, is an

example.

Table 5 gives the acreage and proportionate extent

of each map unit. Other tables (see Contents) 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.

Ambraw Series

Taxonomic classification: Fine-loamy, mixed,

superactive, mesic Fluvaquentic Endoaquolls

Typical Pedon

Ambraw clay loam, 0 to 2 percent slopes, rarely

flooded; 2,400 feet north and 160 feet east of the

southwest corner of sec. 11, T. 19 N., R. 3 E.; in

Whiteside County, Illinois; USGS Erie Northwest

topographic quadrangle; lat. 41 degrees 38 minutes 57

seconds N. and long. 90 degrees 07 minutes 54

seconds W., NAD 27:

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

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

subangular blocky structure parting to weak fine

granular; friable; slightly acid; abrupt smooth

boundary.

A—10 to 20 inches; very dark gray (10YR 3/1) clay

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

fine subangular blocky structure parting to weak

fine granular; friable; many distinct black (10YR

2/1) organic coatings on faces of peds; few fine

prominent yellowish brown (10YR 5/6) iron oxide

masses in the matrix; neutral; clear smooth

boundary.

Bg1—20 to 27 inches; dark gray (10YR 4/1) clay loam;

moderate medium and fine subangular blocky

structure; friable; many distinct very dark gray

(10YR 3/1) organic coatings on faces of peds; few

fine concretions of iron oxide throughout the

matrix; common fine prominent strong brown

(7.5YR 4/6) iron oxide masses in the matrix;

neutral; clear smooth boundary.

Bg2—27 to 32 inches; dark gray (10YR 4/1) clay loam;

weak medium prismatic structure; friable; few faint

concretions of iron oxide throughout the matrix;

many medium prominent yellowish brown (10YR

5/6) and few fine prominent strong brown (7.5YR

4/6) iron oxide masses in the matrix; slightly acid;

clear smooth boundary.

Bg3—32 to 36 inches; gray (5Y 5/1) clay loam; weak

medium subangular blocky structure; friable; very

dark gray (10YR 3/1) krotovina 1 inch wide at a

depth of 34 to 35 inches; few fine concretions of

iron oxide throughout the matrix; many medium

prominent yellowish brown (10YR 5/6) and few

fine prominent strong brown (7.5YR 4/6) iron oxide

masses in the matrix; neutral; abrupt smooth

boundary.

Bg4—36 to 45 inches; gray (5Y 5/1) clay loam with

thin strata of gray (10YR 5/1) sandy clay loam;

weak medium subangular blocky structure; friable;

few fine soft masses of iron oxide throughout the

matrix; few fine prominent brown (7.5YR 5/4) and

common fine prominent yellowish brown (10YR

5/6) iron oxide masses in the matrix; slightly acid;

gradual smooth boundary.

Cg—45 to 60 inches; stratified grayish brown (2.5Y

5/2) clay loam, very dark grayish brown (2.5Y 3/2)

sandy clay loam, and brown (10YR 5/3) loamy

sand; massive; friable; few fine prominent

yellowish brown (10YR 5/6) iron oxide masses in

the matrix; neutral.

Range in Characteristics

Thickness of the mollic epipedon: 10 to 24 inches

Depth to free carbonates: More than 50 inches

Thickness of the solum: 40 to 60 inches

Ap or A horizon:

Hue—10YR, 2.5Y, or N

Value—2 or 3

Chroma—0 to 2
Rock Island County, Illinois 27

Texture—clay loam, loam, sandy loam, sandy clay

loam, or silty clay loam

Bg horizon:

Hue—10YR, 2.5Y, 5Y, or N

Value—4 to 6

Chroma—0 to 2

Texture—loam, clay loam, sandy clay loam, sandy

loam, or silt loam

Cg horizon:

Hue—10YR, 2.5Y, or 5Y

Value—4 to 6

Chroma—1 to 4

Texture—stratified sand, loamy sand, sandy loam,

loam, silt loam, and clay loam

8302A—Ambraw loam, 0 to 2 percent

slopes, occasionally flooded

Setting

Landform: Flood plains

Composition

Ambraw and similar soils: 95 percent

Dissimilar soils: 5 percent

Minor Components

Similar soils:

• Soils that contain more clay in the lower part

• Soils that have a thicker surface layer

Dissimilar soils:

• Moderately well drained soils on footslopes

Properties and Qualities of the Ambraw Soil

Parent material: Alluvium

Drainage class: Poorly drained

Slowest permeability within a depth of 40 inches:

Moderately slow

Permeability below a depth of 60 inches: Moderately

slow or moderate

Depth to restrictive feature: More than 80 inches

Available water capacity to a depth of 60 inches: About

9.4 inches

Content of organic matter in the surface layer: 2 to 3

percent

Shrink-swell potential: Moderate

Depth and months of the highest apparent seasonal

high water table: At the surface, January to May

Ponding depth: 0.2 foot during wet periods

Frequency and most likely period of flooding:

Occasional, November to June

Potential for frost action: High

Hazard of corrosion: High for steel and moderate for

concrete

Surface runoff class: Negligible

Susceptibility to water erosion: Slight

Susceptibility to wind erosion: Slight

Interpretive Groups

Land capability classification: 2w

Prime farmland status: Prime farmland where drained

Hydric soil status: Hydric

Atlas Series

Taxonomic classification: Fine, smectitic, mesic Aeric

Chromic Vertic Epiaqualfs

Map units in which this series occurs: 946D3, 946F3

Typical Pedon

Atlas silt loam, 5 to 10 percent slopes, eroded, at an

elevation of 665 feet; 1,200 feet west and 50 feet south

of the northeast corner of sec. 7, T. 1 N., R. 6 W.; in

Warren County, Illinois; USGS Coatsburg topographic

quadrangle; lat. 40 degrees 05 minutes 40 seconds N.

and long. 91 degrees 07 minutes 52 seconds W., NAD

27:

Ap—0 to 7 inches; dark grayish brown (10YR 4/2) silt

loam, light brownish gray (10YR 6/2) dry; weak

fine granular structure; friable; common very fine

and fine roots; common medium prominent brown

(7.5YR 5/8) and few fine distinct yellowish brown

(10YR 5/6) masses of iron throughout; few fine

prominent black (2.5Y 2/1) masses of iron and

manganese throughout; slightly acid; clear smooth

boundary.

BE—7 to 13 inches; brown (10YR 5/3) silty clay loam,

light brownish gray (10YR 6/2) dry; weak medium

subangular blocky structure; friable; common fine

roots; few fine distinct light brownish gray (10YR

6/2) clay depletions throughout; few fine distinct

yellowish brown (10YR 5/6) masses of iron

throughout; slightly acid; clear wavy boundary.

2Btg1—13 to 26 inches; dark gray (10YR 4/1) silty

clay loam; moderate thick platy structure parting to

weak fine subangular blocky; firm; common fine

and few medium roots; common distinct very dark

gray (10YR 3/1) organo-clay films on faces of

peds and in pores; few fine prominent yellowish

brown (10YR 5/6) masses of iron and few fine

distinct white (10YR 8/1) masses of barite

throughout; moderately acid; clear wavy boundary.

2Btg2—26 to 37 inches; 87 percent dark gray (10YR

4/1) and 10 percent gray (10YR 5/1) silty clay;
28 Soil Survey of

weak medium prismatic structure; firm; common

fine and medium roots; few distinct very dark gray

(10YR 3/1) organo-clay films on faces of peds and

in pores; common fine prominent yellowish brown

(10YR 5/6) masses of iron and few fine distinct

white (10YR 8/1) masses of barite throughout;

1 percent rounded gravel and 1 percent

subangular limestone-cherty gravel; neutral; clear

wavy boundary.

2Btg3—37 to 47 inches; gray (2.5Y 5/1) silty clay;

weak coarse prismatic structure; firm; common

fine roots; few distinct very dark gray (10YR 3/1)

organo-clay films on faces of peds and in pores;

few fine prominent yellowish brown (10YR 5/6)

masses of iron throughout; few fine faint gray

(10YR 6/1) iron depletions and few fine distinct

white (10YR 8/1) masses of barite throughout;

1 percent angular gravel; neutral; clear wavy

boundary.

2Btg4—47 to 61 inches; gray (2.5Y 5/1) clay loam;

weak coarse prismatic structure; firm; common

very fine roots; few distinct very dark gray (10YR

3/1) organo-clay films on faces of peds and in

pores; few fine distinct black (2.5Y 2/1) masses of

iron and manganese and few fine distinct white

(10YR 8/1) barite crystals throughout; 1 percent

limestone-cherty gravel and 1 percent rounded

igneous-granite gravel; neutral; clear wavy

boundary.

2BCg—61 to 80 inches; light brownish gray (2.5Y 6/2)

clay loam; weak coarse prismatic structure; firm;

few fine distinct yellowish brown (10YR 5/6) and

common medium prominent brownish yellow

(10YR 6/8) masses of iron throughout; 2 percent

limestone-cherty gravel; neutral.

Range in Characteristics

Depth to the base of the argillic horizon: More than 42

inches

Ap or A horizon:

Hue—10YR

Value—2 to 5

Chroma—1 to 4

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

loam

E or BE horizon:

Hue—10YR

Value—4 or 5

Chroma—1 to 4

Texture—silt loam or silty clay loam

Bt, Btg, or 2Btg horizon:

Hue—10YR, 2.5Y, 5Y, or N

Value—4 to 6

Chroma—0 to 2

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

clay

Content of rock fragments—0 to 5 percent

2Cg horizon (if it occurs):

Hue—10YR, 7.5YR, 2.5Y, 5Y, or N

Value—4 to 6

Chroma—0 to 6

Texture—silty clay loam, clay loam, or loam

Content of rock fragments—2 to 15 percent

Atterberry Series

Taxonomic classification: Fine-silty, mixed,

superactive, mesic Udollic Endoaqualfs

Typical Pedon (Official Series Description)

Atterberry silt loam, 0 to 2 percent slopes; 1,650 feet

north and 1,120 feet east of the southwest corner of

sec. 34, T. 16 N., R. 9 E.; in Bureau County, Illinois;

USGS Princeton South topographic quadrangle; lat. 41

degrees 19 minutes 30 seconds N. and long. 89

degrees 26 minutes 47 seconds W., NAD 27:

Ap—0 to 9 inches; very dark grayish brown (10YR 3/2)

silt loam, brown (10YR 5/3) dry; moderate fine

granular structure; friable; few fine roots; neutral;

abrupt smooth boundary.

E—9 to 13 inches; light brownish gray (10YR 6/2) silt

loam; moderate thin platy structure; friable; few

fine roots; common fine faint grayish brown (10YR

5/2) redoximorphic depletions; slightly acid; clear

smooth boundary.

BE—13 to 17 inches; brown (10YR 5/3) silt loam;

moderate medium platy structure parting to

moderate very fine subangular blocky; friable; few

fine roots; common faint brown (10YR 4/3) clay

films on faces of peds and common distinct light

gray (10YR 7/2) (dry) redoximorphic clay

depletions on faces of peds; few fine dark brown

(7.5YR 3/2) concretions of iron and manganese

oxide; few fine faint grayish brown (10YR 5/2) iron

depletions; slightly acid; clear smooth boundary.

Bt—17 to 24 inches; brown (10YR 5/3) silty clay loam;

moderate fine subangular blocky structure; firm;

few fine roots; many faint dark grayish brown

(10YR 4/2) clay films and common faint light gray

(10YR 7/2) (dry) redoximorphic clay depletions on

faces of peds; common fine rounded dark brown

(7.5YR 3/2) concretions of iron and manganese

oxide; common fine faint grayish brown (10YR 5/2)

iron depletions and common fine distinct yellowish

brown (10YR 5/6) iron concentrations; strongly

acid; clear smooth boundary.
Rock Island County, Illinois 29

Btg1—24 to 33 inches; grayish brown (2.5Y 5/2) silty

clay loam; moderate medium subangular blocky

structure; friable; few fine roots; many distinct

grayish brown (10YR 5/2) clay films and few

distinct light gray (10YR 7/2) (dry) redoximorphic

clay depletions on faces of peds; common fine

rounded dark brown (7.5YR 3/2) concretions of

iron and manganese oxide; common fine faint light

brownish gray (2.5Y 6/2) iron depletions and

common fine distinct yellowish brown (10YR 5/6)

iron concentrations; strongly acid; clear smooth

boundary.

Btg2—33 to 40 inches; light brownish gray (2.5Y 6/2)

silty clay loam; moderate medium prismatic

structure parting to moderate medium subangular

blocky; friable; few fine roots; common distinct

grayish brown (10YR 5/2) clay films and few

distinct light gray (10YR 7/2) (dry) redoximorphic

clay depletions on faces of peds; many prominent

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

lining pores; common fine prominent rounded dark

brown (7.5YR 3/2) concretions of iron and

manganese oxide; many fine prominent yellowish

brown (10YR 5/6) iron concentrations; strongly

acid; clear smooth boundary.

Btg3—40 to 48 inches; light brownish gray (2.5Y 6/2)

silty clay loam; moderate coarse prismatic

structure; friable; few fine roots; common distinct

grayish brown (10YR 5/2) clay films on faces of

peds; many prominent very dark grayish brown

(10YR 3/2) clay films lining pores; many fine

prominent yellowish brown (10YR 5/6) iron

concentrations; strongly acid; clear smooth

boundary.

BCg—48 to 55 inches; light brownish gray (2.5Y 6/2)

silt loam; weak coarse prismatic structure; friable;

common distinct grayish brown (10YR 5/2) clay

films on faces of peds; many prominent very dark

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

many medium prominent yellowish brown (10YR

5/6) iron concentrations; moderately acid; clear

smooth boundary.

Cg—55 to 60 inches; light brownish gray (2.5Y 6/2) silt

loam; massive; friable; many medium prominent

yellowish brown (10YR 5/6) iron concentrations;

slightly acid.

Range in Characteristics

Thickness of the solum: 42 to 72 inches

Ap or A horizon:

Value—2 or 3

Chroma—1 or 2

Reaction—moderately acid to neutral

E horizon:

Value—4 to 6

Chroma—1 or 2

Reaction—strongly acid to neutral

Bt or Btg horizon:

Hue—10YR, 2.5Y, or 5Y

Value—4 to 6

Chroma—2 to 4

Texture—silty clay loam or silt loam

Reaction—strongly acid to neutral

C or Cg horizon:

Hue—10YR, 2.5Y, or 5Y

Value—4 to 6

Chroma—1 to 4

Reaction—moderately acid to slightly alkaline

61A—Atterberry silt loam, 0 to 2 percent

slopes

Setting

Landform: Ground moraines

Position on the landform: Summits

Composition

Atterberry and similar soils: 98 percent

Dissimilar soils: 2 percent

Minor Components

Similar soils:

• Soils that have more clay in the subsoil

• Eroded soils that have slopes of 2 to 5 percent; near

the head of drainageways

Dissimilar soils:

• The well drained Fayette soils on shoulders

• The well drained Rozetta soils on summits

• The poorly drained Sable soils in depressions

Properties and Qualities of the Atterberry Soil

Parent material: Loess

Drainage class: Somewhat poorly drained

Slowest permeability within a depth of 40 inches:

Moderate

Permeability below a depth of 60 inches: Moderate

Depth to restrictive feature: More than 80 inches

Available water capacity to a depth of 60 inches: About

11.7 inches

Content of organic matter in the surface layer: 1.5 to

3.5 percent

Shrink-swell potential: Moderate

Depth and months of the highest apparent seasonal

high water table: 0.5 foot, January to May

Flooding: None
30 Soil Survey of

Accelerated erosion: None or slight

Potential for frost action: High

Hazard of corrosion: High for steel and moderate for

concrete

Surface runoff class: Low

Susceptibility to water erosion: Slight

Susceptibility to wind erosion: Slight

Interpretive Groups

Land capability classification: 1

Prime farmland status: Prime farmland where drained

Hydric soil status: Not hydric

Biggsville Series

Taxonomic classification: Fine-silty, mixed,

superactive, mesic Typic Hapludolls

Typical Pedon (Official Series Description)

Biggsville silt loam, 0 to 2 percent slopes, at an

elevation of 630 feet; 1,520 feet west and 200 feet

south of the northeast corner of sec. 30, T. 19 N., R. 3

E.; in Rock Island County, Illinois; USGS Hillsdale

topographic quadrangle; lat. 41 degrees 36 minutes 40

seconds N. and long. 90 degrees 12 minutes 00

seconds W., NAD 27:

Ap—0 to 8 inches; very dark gray (10YR 3/1) silt loam,

grayish brown (10YR 5/2) dry; moderate very fine

and fine granular structure; friable; common fine

roots; neutral; abrupt smooth boundary.

AB—8 to 16 inches; very dark grayish brown (10YR

3/2) and brown (10YR 4/3) silt loam, grayish

brown (10YR 5/2) dry; moderate medium

subangular blocky structure parting to moderate

fine granular; friable; few fine roots; neutral;

gradual smooth boundary.

Bw1—16 to 32 inches; brown (10YR 4/3) and dark

yellowish brown (10YR 4/4) silt loam; moderate

medium prismatic structure parting to moderate

medium subangular blocky; friable; few fine roots;

few faint very dark grayish brown (10YR 3/2)

organic coatings on faces of peds; slightly acid;

abrupt smooth boundary.

Bw2—32 to 47 inches; brown (10YR 4/3) silt loam;

moderate medium prismatic structure; friable;

common medium distinct brown (7.5YR 4/4) and

yellowish brown (10YR 5/6) masses of iron within

peds; common medium distinct grayish brown

(10YR 5/2) iron depletions within peds; few fine

black (7.5YR 2.5/1) iron and manganese oxide

stains; slightly acid; gradual smooth boundary.

Cg—47 to 80 inches; grayish brown (10YR 5/2), brown

(7.5YR 4/4), and yellowish brown (10YR 5/6) silt

loam; massive; friable; few fine black (7.5YR 2.5/1)

iron and manganese oxide stains; slightly acid.

Range in Characteristics

Thickness of the mollic epipedon: 10 to 20 inches

Depth to the base of the cambic horizon: More than 42

inches

Ap or A horizon:

Value—2 or 3

Chroma—1 to 3

Reaction—moderately acid to moderately alkaline

Bw or BC horizon:

Hue—7.5YR or 10YR

Value—3 to 5

Chroma—3 to 6

Reaction—moderately acid to neutral

C or Cg horizon:

Hue—7.5YR, 10YR, or 2.5Y

Value—4 to 6

Chroma—2 to 6

Reaction—slightly acid to moderately alkaline

671A—Biggsville silt loam, 0 to 2 percent

slopes

Setting

Landform: Ground moraines

Position on the landform: Summits

Composition

Biggsville and similar soils: 95 percent

Dissimilar soils: 5 percent

Minor Components

Similar soils:

• Soils that do not have a seasonal high water table

within a depth of 6 feet

• Soils that have a surface layer more than 24 inches

thick

• Soils that are underlain by sand within a depth of 60

inches

Dissimilar soils:

• The somewhat poorly drained Joy soils on summits

Properties and Qualities of the Biggsville Soil

Parent material: Loess

Drainage class: Well drained

Slowest permeability within a depth of 40 inches:

Moderate

Permeability below a depth of 60 inches: Moderate

Depth to restrictive feature: More than 80 inches
Rock Island County, Illinois 31

Available water capacity to a depth of 60 inches: About

12.8 inches

Content of organic matter in the surface layer: 3 to 5

percent

Shrink-swell potential: Low

Depth and months of the highest apparent seasonal

high water table: 4 feet, February to April

Flooding: None

Accelerated erosion: None or slight

Potential for frost action: High

Hazard of corrosion: Low for steel and moderate for

concrete

Surface runoff class: Low

Susceptibility to water erosion: Slight

Susceptibility to wind erosion: Slight

Interpretive Groups

Land capability classification: 1

Prime farmland status: Prime farmland

Hydric soil status: Not hydric

671B—Biggsville silt loam, 2 to 5 percent

slopes

Setting

Landform: Ground moraines

Position on the landform: Shoulders

Composition

Biggsville and similar soils: 96 percent

Dissimilar soils: 4 percent

Minor Components

Similar soils:

• Soils that do not have a seasonal high water table

within a depth of 6 feet

• Soils that have a surface layer more than 24 inches

thick

• Soils that are underlain by sand within a depth of 60

inches

Dissimilar soils:

• The somewhat poorly drained Joy soils on summits

• The poorly drained Denny soils in depressions

Properties and Qualities of the Biggsville Soil

Parent material: Loess

Drainage class: Well drained

Slowest permeability within a depth of 40 inches:

Moderate

Permeability below a depth of 60 inches: Moderate

Depth to restrictive feature: More than 80 inches

Available water capacity to a depth of 60 inches: About

12.8 inches

Content of organic matter in the surface layer: 3 to 5

percent

Shrink-swell potential: Low

Depth and months of the highest apparent seasonal

high water table: 4 feet, February to April

Flooding: None

Potential for frost action: High

Hazard of corrosion: Low for steel and moderate for

concrete

Surface runoff class: Low

Susceptibility to water erosion: Slight

Susceptibility to wind erosion: Slight

Interpretive Groups

Land capability classification: 2e

Prime farmland status: Prime farmland

Hydric soil status: Not hydric

Birds Series

Taxonomic classification: Fine-silty, mixed,

superactive, nonacid, mesic Typic Fluvaquents

Typical Pedon

Birds silt loam, undrained, 0 to 2 percent slopes,

frequently flooded; 2,050 feet north and 110 feet west

of the southeast corner of sec. 36, T. 5 N., R. 4 W.; in

McDonough County, Illinois; USGS Fandon

topographic quadrangle; lat. 40 degrees 22 minutes 26

seconds N. and long. 90 degrees 47 minutes 30

seconds W., NAD 27:

Ap—0 to 9 inches; dark gray (10YR 4/1) silt loam, pale

brown (10YR 6/3) dry; thin strata of dark gray

(10YR 4/1), very dark gray (10YR 3/1), and light

yellowish brown (10YR 6/4) silt loam; moderate

fine granular structure; friable; few fine distinct

yellowish brown (10YR 5/8) iron masses in the

matrix; slightly effervescent; moderately alkaline;

abrupt smooth boundary.

Cg1—9 to 22 inches; gray (10YR 5/1) silt loam; thin

strata of light gray (10YR 7/1) and dark gray

(10YR 4/1) silt loam; massive; friable; few fine

distinct light brownish gray (10YR 6/2) iron

depletions and few fine distinct yellowish brown

(10YR 5/8) iron masses in the matrix; few fine

rounded black (7.5YR 2.5/1) concretions of ironmanganese oxide throughout the matrix; slightly

effervescent; moderately alkaline; clear smooth

boundary.

Cg2—22 to 37 inches; gray (10YR 5/1) silt loam; thin

strata of dark gray (10YR 4/1) silt loam; massive;

friable; common fine distinct light brownish gray

(10YR 6/2) iron depletions and common fine
32 Soil Survey of

distinct yellowish brown (10YR 5/8) iron masses in

the matrix; few fine rounded black (7.5YR 2.5/1)

concretions of iron-manganese oxide throughout

the matrix; neutral; clear smooth boundary.

Cg3—37 to 60 inches; light brownish gray (10YR 6/2)

silt loam; thin strata of dark gray (10YR 4/1) silt

loam; massive; friable; common fine distinct dark

gray (10YR 4/1) iron depletions and common fine

and medium distinct yellowish brown (10YR 5/8)

iron masses in the matrix; few fine rounded black

(7.5YR 2.5/1) concretions of iron-manganese

oxide throughout the matrix; slightly acid.

Range in Characteristics

Ap, A, or ACg horizon:

Hue—10YR, 2.5Y, or 5Y

Value—4 to 6

Chroma—1 or 2

Cg horizon:

Hue—10YR, 2.5Y, or 5Y

Value—4 to 7

Chroma—1 or 2

Texture—silt loam; strata of silty clay loam, clay

loam, loam, or sandy loam below a depth of 40

inches in some pedons

1334A—Birds silt loam, undrained, 0 to 2

percent slopes, frequently flooded

Setting

Landform: Flood plains

Composition

Birds and similar soils: 97 percent

Dissimilar soils: 3 percent

Minor Components

Similar soils:

• Soils that have a thicker or darker surface layer

Dissimilar soils:

• The poorly drained Sawmill soils on toeslopes

• Well drained soils on footslopes

Properties and Qualities of the Birds Soil

Parent material: Alluvium

Drainage class: Poorly drained

Slowest permeability within a depth of 40 inches:

Moderate

Permeability below a depth of 60 inches: Moderate

Depth to restrictive feature: More than 80 inches

Available water capacity to a depth of 60 inches: About

11.9 inches

Content of organic matter in the surface layer: 2 to 4

percent

Shrink-swell potential: Moderate

Depth and months of the highest apparent seasonal

high water table: At the surface, November to June

Ponding depth: 0.2 foot during wet periods

Frequency and most likely period of flooding:

Frequent, November to June

Potential for frost action: High

Hazard of corrosion: Moderate for steel and low for

concrete

Surface runoff class: Negligible

Susceptibility to water erosion: Slight

Susceptibility to wind erosion: Slight

Interpretive Groups

Land capability classification: 5w

Prime farmland status: Not prime farmland

Hydric soil status: Hydric

Bold Series

Taxonomic classification: Coarse-silty, mixed,

superactive, calcareous, mesic Typic Udorthents

Map unit in which this series occurs: 962F

Typical Pedon

Bold silt loam, in an area of Sylvan-Bold complex,

severely eroded, 10 to 18 percent slopes; 600 feet

north and 900 feet east of the southwest corner of sec.

7, T. 16 N., R. 3 E.; in Henry County, Illinois; USGS

Geneseo topographic quadrangle; lat. 41 degrees 23

minutes 04 seconds N. and long. 90 degrees 11

minutes 57 seconds W., NAD 27:

Ap—0 to 8 inches; mixed brown (10YR 4/3), dark

grayish brown (10YR 4/2), and yellowish brown

(10YR 5/4) silt loam, pale brown (10YR 6/3) and

light yellowish brown (10YR 6/4) dry; weak very

fine and fine granular structure; friable; slightly

effervescent; moderately alkaline; abrupt smooth

boundary.

C1—8 to 16 inches; yellowish brown (10YR 5/6) silt

loam; massive; friable; strongly effervescent;

moderately alkaline; abrupt smooth boundary.

C2—16 to 37 inches; light brownish gray (10YR 6/2)

and yellowish brown (10YR 5/6) silt loam;

massive; friable; strongly effervescent; moderately

alkaline; clear smooth boundary.

C3—37 to 60 inches; yellowish brown (10YR 5/6) and

light brownish gray (10YR 6/2) silt loam; massive;

friable; strongly effervescent; moderately alkaline;

clear wavy boundary.

C4—60 to 80 inches; light brownish gray (10YR 6/2)
Rock Island County, Illinois 33

and yellowish brown (10YR 5/6) silt loam;

massive; few coarse prominent strong brown

(7.5YR 5/8) iron concentrations; strongly

effervescent; moderately alkaline.

Range in Characteristics

Thickness of the loess: 6 to more than 30 feet

Thickness of the solum: 3 to 12 inches

Ap horizon:

Hue—10YR

Value—4 to 6

Chroma—2 to 6

C horizon:

Hue—10YR

Value—4 to 7

Chroma—2 to 8

Buckhart Series

Taxonomic classification: Fine-silty, mixed,

superactive, mesic Oxyaquic Argiudolls

Typical Pedon (Official Series Description)

Buckhart silt loam, 2 to 5 percent slopes, at an

elevation of 603 feet; 360 feet west and 540 feet north

of the southeast corner of sec. 24, T. 14 N., R. 3 W.; in

Christian County, Illinois; USGS Grove City

topographic quadrangle; lat. 39 degrees 33 minutes 53

seconds N. and long. 89 degrees 22 minutes 06

seconds W., NAD 27:

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

silt loam, grayish brown (10YR 5/2) dry; moderate

medium granular structure; friable; few very fine

roots; moderately acid; clear smooth boundary.

A—8 to 15 inches; very dark grayish brown (10YR 3/2)

silt loam, grayish brown (10YR 5/2) dry; moderate

fine subangular blocky structure parting to

moderate medium granular; friable; few very fine

roots; moderately acid; clear smooth boundary.

Bt1—15 to 26 inches; dark yellowish brown (10YR 4/4)

silty clay loam; moderate medium subangular

blocky structure parting to moderate medium

granular; friable; few very fine roots; many distinct

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

few distinct very dark grayish brown (10YR 3/2)

organic coatings in root channels and/or pores;

slightly acid; clear smooth boundary.

Bt2—26 to 37 inches; dark yellowish brown (10YR 4/4)

silty clay loam; moderate medium subangular

blocky structure; friable; few very fine roots; many

distinct dark grayish brown (10YR 4/2) clay films

on faces of peds; few fine irregular prominent

strong brown (7.5YR 5/6) masses of iron and

manganese along pores and few fine irregular

prominent light brownish gray (2.5Y 6/2) iron

depletions along pores; neutral; clear smooth

boundary.

Bt3—37 to 52 inches; brown (10YR 5/3) silt loam;

weak medium subangular blocky structure; friable;

few very fine roots; common distinct dark grayish

brown (10YR 4/2) clay films on faces of peds;

common fine irregular prominent strong brown

(7.5YR 5/6) masses of iron and manganese along

pores, few fine rounded prominent black (7.5YR

2.5/1) iron-manganese nodules throughout, and

common fine distinct irregular light brownish gray

(2.5Y 6/2) iron depletions along pores; slightly

acid; clear smooth boundary.

BCt—52 to 67 inches; light olive brown (2.5Y 5/3) silt

loam; weak coarse subangular blocky structure;

friable; few very fine roots; few distinct dark

grayish brown (10YR 4/2) clay films in root

channels and/or pores; common fine irregular

prominent strong brown (7.5YR 5/6) masses of

iron and manganese along pores, common fine

irregular light brownish gray (2.5Y 6/2) iron

depletions along pores, and few fine rounded

prominent black (7.5YR 2.5/1) iron-manganese

nodules throughout; neutral; gradual smooth

boundary.

C—67 to 80 inches; yellowish brown (10YR 5/4) silt

loam; massive; friable; common medium irregular

distinct strong brown (7.5YR 5/6) masses of iron

and manganese throughout, common medium

irregular prominent light brownish gray (2.5Y 6/2)

iron depletions throughout, and few fine rounded

prominent black (7.5YR 2.5/1) iron-manganese

nodules throughout; neutral.

Range in Characteristics

Thickness of the loess: More than 80 inches

Thickness of the mollic epipedon: 10 to 20 inches

Depth to the base of the argillic horizon: 40 to 55

inches

Depth to carbonates (if they occur): More than 40

inches

Ap and A horizons:

Hue—10YR

Value—2 or 3

Chroma—1 to 3

Texture—silt loam or silty clay loam

Bt or Btg horizon:

Hue—10YR or 2.5Y

Value—4 to 6

Chroma—2 to 6
34 Soil Survey of

Texture—silty clay loam or silt loam

Reaction—moderately acid to neutral

BC or BCg horizon:

Hue—10YR or 2.5Y

Value—5 or 6

Chroma—2 to 4

Texture—silt loam or silty clay loam

Reaction—neutral or slightly alkaline

C or Cg horizon:

Hue—10YR or 2.5Y

Value—5 or 6

Chroma—2 to 6

Reaction—neutral to moderately alkaline

705A—Buckhart silt loam, 0 to 2 percent

slopes

Setting

Landform: Knolls on ground moraines

Position on the landform: Summits

Composition

Buckhart and similar soils: 93 percent

Dissimilar soils: 7 percent

Minor Components

Similar soils:

• Soils that have a seasonal high water table at a

depth of less than 2 feet

• Soils that have a seasonal high water table at a

depth of more than 3.5 feet

Dissimilar soils:

• The poorly drained Sable soils on toeslopes

• The poorly drained Denny soils in depressions

Properties and Qualities of the Buckhart Soil

Parent material: Loess

Drainage class: Moderately well drained

Slowest permeability within a depth of 40 inches:

Moderate

Permeability below a depth of 60 inches: Moderate

Depth to restrictive feature: More than 80 inches

Available water capacity to a depth of 60 inches: About

12.2 inches

Content of organic matter in the surface layer: 3 to 4

percent

Shrink-swell potential: Moderate

Depth and months of the highest apparent seasonal

high water table: 2 feet, February to April

Flooding: None

Accelerated erosion: None or slight

Potential for frost action: High

Hazard of corrosion: Moderate for steel and moderate

for concrete

Surface runoff class: Low

Susceptibility to water erosion: Slight

Susceptibility to wind erosion: Slight

Interpretive Groups

Land capability classification: 1

Prime farmland status: Prime farmland

Hydric soil status: Not hydric

Burkhardt Series

Taxonomic classification: Sandy, mixed, mesic Typic

Hapludolls

Typical Pedon

Burkhardt sandy loam, in an area of Burkhardt-Saude

complex, 0 to 2 percent slopes; 58 feet west and 602

feet north of the southeast corner of sec. 33, T. 21 N.,

R. 2 E.; in Rock Island County, Illinois; USGS

Comanche topographic quadrangle; lat. 41 degrees 51

minutes 55 seconds N. and long. 90 degrees 15

minutes 55 seconds W., NAD 27:

A1—0 to 7 inches; very dark gray (10YR 3/1) and very

dark grayish brown (10YR 3/2) sandy loam;

moderate fine and medium granular structure;

very friable; moderately acid; clear smooth

boundary.

A2—7 to 13 inches; very dark gray (10YR 3/1) and

very dark grayish brown (10YR 3/2) sandy loam;

moderate medium subangular blocky structure

parting to moderate fine and medium granular;

very friable; moderately acid; clear smooth

boundary.

Bw—13 to 20 inches; brown (10YR 4/3), dark brown

(10YR 3/3), and very dark gray (10YR 3/1) sandy

loam; moderate medium and coarse subangular

blocky structure; very friable; moderately acid;

clear smooth boundary.

2BC—20 to 24 inches; dark yellowish brown (10YR

4/4), dark brown (10YR 3/3), and brown (10YR

4/3) gravelly loamy sand; weak coarse subangular

blocky structure; very friable; moderately acid;

gradual smooth boundary.

2C—24 to 60 inches; yellowish brown (10YR 5/4) and

dark brown (10YR 3/3) medium and coarse sand

and fine gravel; single grain; moderately acid.

Range in Characteristics

Thickness of the solum: 10 to 20 inches

Ap or A horizon:

Hue—7.5YR or 10YR
Rock Island County, Illinois 35

Value—2 or 3

Chroma—1 to 3

Texture—sandy loam, loam, or gravelly sandy

loam

Bw or Bt horizon:

Hue—7.5YR or 10YR

Value—3 or 4

Chroma—2 to 4

Texture—sandy loam, loam, gravelly sandy loam,

or gravelly loam

2Bt or 2BC horizon (if it occurs):

Hue—7.5YR or 10YR

Value—3 or 4

Chroma—4 to 6

Texture—sand, coarse sand, loamy sand, or

loamy coarse sand or the gravelly analogs of

these textures

2C horizon:

Hue—7.5YR or 10YR

Value—4 to 6

Chroma—4 to 6

Texture—stratified sand, coarse sand, gravelly

sand, or gravelly coarse sand

961A—Burkhardt-Saude complex, 0 to 2

percent slopes

Setting

Landform: Outwash plains

Position on the landform: Summits

Composition

Burkhardt and similar soils: 50 percent

Saude and similar soils: 50 percent

Minor Components

Similar soils:

• Soils that have less gravel in the lower part

• Soils that are underlain by limestone bedrock within

a depth of 60 inches

Properties and Qualities of the Burkhardt Soil

Parent material: Outwash

Drainage class: Somewhat excessively drained

Slowest permeability within a depth of 40 inches:

Moderately rapid

Permeability below a depth of 60 inches: Rapid

Depth to restrictive feature: More than 80 inches

Available water capacity to a depth of 60 inches: About

4.1 inches

Content of organic matter in the surface layer: 2 to 3

percent

Shrink-swell potential: Low

Flooding: None

Accelerated erosion: None or slight

Potential for frost action: Low

Hazard of corrosion: Low for steel and high for

concrete

Surface runoff class: Very low

Susceptibility to water erosion: Slight

Susceptibility to wind erosion: Moderately high

Properties and Qualities of the Saude Soil

Parent material: Outwash

Drainage class: Well drained

Slowest permeability within a depth of 40 inches:

Moderate

Permeability below a depth of 60 inches: Very rapid

Depth to restrictive feature: More than 80 inches

Available water capacity to a depth of 60 inches: About

6.7 inches

Content of organic matter in the surface layer: 3 to 4

percent

Shrink-swell potential: Low

Flooding: None

Accelerated erosion: None or slight

Potential for frost action: Moderate

Hazard of corrosion: Low for steel and moderate for

concrete

Surface runoff class: Low

Susceptibility to water erosion: Slight

Susceptibility to wind erosion: Slight

Interpretive Groups

Land capability classification: Burkhardt—2s; Saude—

2s

Prime farmland status: Prime farmland

Hydric soil status: Burkhardt—not hydric; Saude—not

hydric

Calco Series

Taxonomic classification: Fine-silty, mixed,

superactive, calcareous, mesic Cumulic

Endoaquolls

Typical Pedon

Calco silty clay loam, 0 to 2 percent slopes, frequently

flooded; 1,100 feet east and 2,600 feet south of the

northwest corner of sec. 19, T. 19 N., R. 4 E.; in

Whiteside County, Illinois; USGS Spring Hill

topographic quadrangle; lat. 41 degrees 37 minutes 14

seconds N. and long. 90 degrees 05 minutes 22

seconds W., NAD 27:
36 Soil Survey of

A1—0 to 17 inches; black (10YR 2/1) silty clay loam,

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

granular structure; friable; few snail-shell

fragments; slightly effervescent; slightly alkaline;

gradual smooth boundary.

A2—17 to 30 inches; black (10YR 2/1) silty clay loam,

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

and fine subangular blocky structure; friable; few

snail-shell fragments; slightly effervescent; slightly

alkaline; gradual smooth boundary.

A3—30 to 37 inches; black (10YR 2/1) silty clay loam,

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

fine subangular blocky structure; friable; few snailshell fragments; violently effervescent; slightly

alkaline; gradual smooth boundary.

Bg—37 to 49 inches; very dark gray (10YR 3/1) silty

clay loam, gray (10YR 5/1) dry; weak medium

subangular blocky structure; friable; few snail-shell

fragments; violently effervescent; slightly alkaline;

clear smooth boundary.

Cg—49 to 60 inches; dark gray (5Y 4/1) loam;

massive; friable; few thin lenses of sand; few snailshell fragments; violently effervescent; moderately

alkaline.

Range in Characteristics

Thickness of the mollic epipedon: 30 to 50 inches

Thickness of the solum: 40 to 60 inches

Ap or A horizon:

Hue—10YR, 2.5Y, 5Y, or N

Value—2 or 3

Chroma—0 or 1

Texture—silty clay loam or silt loam

Bg horizon:

Hue—10YR, 2.5Y, 5Y, or N

Value—3 to 6

Chroma—0 or 1

Texture—silty clay loam

Cg horizon:

Hue—2.5Y, 5Y, or N

Value—3 to 6

Chroma—0 to 1

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

loam

1400A—Calco silty clay loam, undrained,

0 to 2 percent slopes, frequently

flooded

Setting

Landform: Flood plains

Composition

Calco and similar soils: 99 percent

Dissimilar soils: 1 percent

Minor Components

Similar soils:

• Soils that are not calcareous

• Soils that have a surface layer less than 24 inches

thick

• Soils that contain less silt and more sand

throughout

• Soils that contain less clay throughout

Dissimilar soils:

• Moderately well drained soils on flood plains

• The poorly drained Millington and Otter soils on

toeslopes

Properties and Qualities of the Calco Soil

Parent material: Alluvium

Drainage class: Poorly drained

Slowest permeability within a depth of 40 inches:

Moderate

Permeability below a depth of 60 inches: Moderate

Depth to restrictive feature: More than 80 inches

Available water capacity to a depth of 60 inches: About

12.8 inches

Content of organic matter in the surface layer: 5 to 7

percent

Shrink-swell potential: Moderate

Depth and months of the highest apparent seasonal

high water table: At the surface, November to June

Ponding depth: 0.2 foot during wet periods

Frequency and most likely period of flooding:

Frequent, November to June

Potential for frost action: High

Hazard of corrosion: High for steel and low for

concrete

Surface runoff class: Negligible

Susceptibility to water erosion: Slight

Susceptibility to wind erosion: Slight

Interpretive Groups

Land capability classification: 5w

Prime farmland status: Not prime farmland

Hydric soil status: Hydric

3400A—Calco silty clay loam, 0 to 2

percent slopes, frequently flooded

Setting

Landform: Flood plains
Rock Island County, Illinois 37

Composition

Calco and similar soils: 85 percent

Dissimilar soils: 15 percent

Minor Components

Similar soils:

• Soils that are not calcareous

• Soils that have a surface layer less than 24 inches

thick

• Soils that contain less silt and more sand

throughout

• Soils that contain less clay throughout

Dissimilar soils:

• Moderately well drained soils on flood plains

• Well drained soils on low terrace footslopes

Properties and Qualities of the Calco Soil

Parent material: Alluvium

Drainage class: Poorly drained

Slowest permeability within a depth of 40 inches:

Moderate

Permeability below a depth of 60 inches: Moderate

Depth to restrictive feature: More than 80 inches

Available water capacity to a depth of 60 inches: About

12.7 inches

Content of organic matter in the surface layer: 5 to 7

percent

Shrink-swell potential: Moderate

Depth and months of the highest apparent seasonal

high water table: At the surface, January to May

Ponding depth: 0.2 foot during wet periods

Frequency and most likely period of flooding:

Frequent, November to June

Potential for frost action: High

Hazard of corrosion: High for steel and low for

concrete

Surface runoff class: Negligible

Susceptibility to water erosion: Slight

Susceptibility to wind erosion: Slight

Interpretive Groups

Land capability classification: 2w

Prime farmland status: Prime farmland where drained

and either protected from flooding or not

frequently flooded during the growing season

Hydric soil status: Hydric

8400A—Calco silty clay loam, 0 to 2

percent slopes, occasionally flooded

Setting

Landform: Flood plains

Composition

Calco and similar soils: 85 percent

Dissimilar soils: 15 percent

Minor Components

Similar soils:

• Soils that are not calcareous

• Soils that have a surface layer less than 24 inches

thick

• Soils that contain less silt and more sand

throughout

• Soils that contain less clay throughout

Dissimilar soils:

• Moderately well drained soils on flood plains

Properties and Qualities of the Calco Soil

Parent material: Alluvium

Drainage class: Poorly drained

Slowest permeability within a depth of 40 inches:

Moderate

Permeability below a depth of 60 inches: Moderate

Depth to restrictive feature: More than 80 inches

Available water capacity to a depth of 60 inches: About

12.7 inches

Content of organic matter in the surface layer: 5 to 7

percent

Shrink-swell potential: Moderate

Depth and months of the highest apparent seasonal

high water table: At the surface, January to May

Ponding depth: 0.2 foot during wet periods

Frequency and most likely period of flooding:

Occasional, November to June

Potential for frost action: High

Hazard of corrosion: High for steel and low for

concrete

Surface runoff class: Negligible

Susceptibility to water erosion: Slight

Susceptibility to wind erosion: Slight

Interpretive Groups

Land capability classification: 2w

Prime farmland status: Prime farmland where drained

Hydric soil status: Hydric

Chute Series

Taxonomic classification: Mixed, mesic Typic

Udipsamments

Map unit in which this series occurs: 959G

Typical Pedon

Chute fine sand, 7 to 15 percent slopes, severely
38 Soil Survey of

eroded; 380 feet north and 2,000 feet west of the

southeast corner of sec. 17, T. 17 N., R. 6 E.; in

Bureau County, Illinois; USGS Mineral topographic

quadrangle; lat. 41 degrees 27 minutes 11 seconds N.

and long. 89 degrees 49 minutes 38 seconds W., NAD

27:

A—0 to 4 inches; brown (10YR 5/3) fine sand, light

yellowish brown (10YR 6/4) dry; weak coarse

subangular blocky structure; very friable; few fine

roots; strongly effervescent; slightly alkaline;

gradual smooth boundary.

C—4 to 60 inches; light yellowish brown (10YR 6/4)

fine sand; single grain; loose; strongly

effervescent; slightly alkaline.

Range in Characteristics

Thickness of the solum: Typically less than 15 inches

(A and AC horizons)

A, Ap, or AC horizon (if it occurs):

Hue—10YR

Value—3 to 6

Chroma—2 to 4

Texture—loamy fine sand, fine sandy loam, fine

sand, or sand

C horizon:

Hue—10YR

Value—5 or 6

Chroma—3 to 6

Texture—fine sand, loamy fine sand, or sand

Coatsburg Series

Taxonomic classification: Fine, smectitic, mesic Vertic

Argiaquolls

Map unit in which this series occurs: 944D2

Typical Pedon (Official Series Description)

Coatsburg silt loam, 5 to 10 percent slopes, eroded;

2,550 feet east and 2,400 feet north of the southwest

corner of sec. 20, T. 2 N., R. 5 W.; in Adams County,

Illinois; USGS Augusta topographic quadrangle; lat. 40

degrees 08 minutes 31 seconds N. and long. 91

degrees 70 minutes 25 seconds W., NAD 27:

Ap—0 to 6 inches; very dark gray (10YR 3/1) silt loam,

dark grayish brown (10YR 4/2) dry; moderate fine

granular structure; friable; many fine and medium

roots; moderately acid; abrupt smooth boundary.

AB—6 to 10 inches; very dark gray (10YR 3/1) silty

clay loam, gray (10YR 5/1) dry; weak medium

subangular blocky structure parting to moderate

fine subangular blocky; firm; common fine roots;

few patchy prominent light gray (10YR 7/1) (dry)

clay depletions on faces of peds; common fine

prominent irregular strong brown (7.5YR 5/6)

masses of iron oxide throughout; many fine

prominent irregular light olive brown (2.5Y 5/4)

masses of iron oxide throughout; moderately acid;

clear wavy boundary.

2Btg1—10 to 14 inches; dark grayish brown (10YR

4/2) silty clay loam; weak medium subangular

blocky structure; firm; few fine roots; common

continuous distinct very dark gray (10YR 3/1)

organo-clay films on faces of peds; common

discontinuous distinct dark gray (10YR 4/1) clay

films on faces of peds; common fine prominent

irregular strong brown (7.5YR 5/6) and many fine

prominent irregular light olive brown (2.5Y 5/4)

masses of iron oxide throughout; moderately acid;

clear wavy boundary.

2Btg2—14 to 19 inches; grayish brown (10YR 5/2) silty

clay; weak coarse prismatic structure parting to

weak medium subangular blocky; firm; few fine

and medium roots; common discontinuous distinct

very dark gray (10YR 3/1) organo-clay films on

faces of peds; many fine prominent irregular

strong brown (7.5YR 5/6) masses of iron oxide

throughout; common fine faint irregular light

brownish gray (10YR 6/2) iron depletions

throughout; moderately acid; clear wavy boundary.

2Btg3—19 to 26 inches; grayish brown (10YR 5/2) silty

clay loam; weak very coarse prismatic structure;

firm; few fine roots; few patchy distinct very dark

gray (10YR 3/1) organo-clay films on faces of

peds; common discontinuous distinct gray (10YR

5/1) clay films on faces of peds; common fine and

medium prominent irregular strong brown (7.5YR

5/6) masses of iron oxide throughout; many fine

faint irregular light brownish gray (10YR 6/2) iron

depletions throughout; moderately acid; clear wavy

boundary.

2Btg4—26 to 38 inches; grayish brown (10YR 5/2) silty

clay loam; weak very coarse prismatic structure;

firm; few very fine roots; few discontinuous distinct

gray (10YR 5/1) clay films on faces of peds and in

pores; common fine and medium prominent

irregular black (2.5Y 2.5/1) masses of iron and

manganese oxide throughout; common fine and

medium prominent irregular strong brown (7.5YR

5/6) masses of iron oxide throughout; many fine

and medium faint irregular light brownish gray

(10YR 6/2) iron depletions throughout; moderately

acid; clear wavy boundary.

2Btg5—38 to 45 inches; light brownish gray (10YR

6/2) silty clay loam; moderate very coarse

prismatic structure; firm; few discontinuous distinct
Rock Island County, Illinois 39

dark gray (10YR 4/1) clay films lining root

channels and pores; common discontinuous

distinct grayish brown (10YR 5/2) clay films on

faces of peds; common patchy prominent light

gray (10YR 7/2) clay depletions on faces of peds;

common medium prominent irregular brownish

yellow (10YR 6/8) masses of iron oxide

throughout; slightly acid; clear wavy boundary.

2Btg6—45 to 62 inches; gray (10YR 6/1) silty clay

loam; moderate very coarse prismatic structure;

firm; many continuous prominent light gray (10YR

7/2) clay depletions on faces of peds; common

continuous distinct gray (10YR 5/1) clay films on

faces of peds; few medium prominent irregular

black (2.5Y 2.5/1) masses of iron and manganese

oxide throughout; common medium and coarse

prominent irregular brownish yellow (10YR 6/6)

masses of iron oxide throughout; slightly acid;

clear wavy boundary.

2Btg7—62 to 70 inches; light brownish gray (10YR

6/2) silty clay; weak very coarse prismatic

structure parting to moderate medium subangular

blocky; very firm; few continuous distinct gray

(10YR 6/1) clay films on faces of peds and in

pores; common fine prominent irregular black

(2.5Y 2.5/1) masses of iron and manganese oxide

throughout; many medium prominent irregular

strong brown (7.5YR 5/6) masses of iron oxide

throughout; 2 percent pressure faces throughout;

slightly acid; gradual wavy boundary.

2BCg—70 to 80 inches; gray (10YR 6/1) silty clay;

weak very coarse prismatic structure; firm;

common fine prominent irregular black (2.5Y

2.5/1) masses of iron and manganese oxide

throughout; many coarse prominent irregular

brownish yellow (10YR 6/6) masses of iron oxide

throughout; slightly acid.

Range in Characteristics

Thickness of the loess: Less than 20 inches

Thickness of the mollic epipedon: 10 to 20 inches

Depth to the base of the argillic horizon: 50 to 80

inches

Ap, A, or AB horizon:

Value—2 or 3

Chroma—1 or 2

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

Reaction—strongly acid to slightly alkaline (in

areas that have been limed)

Bt, Btg, 2Bt, or 2Btg horizon:

Hue—10YR, 2.5Y, 5Y, or N

Value—3 to 6

Chroma—0 to 2

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

loam

Reaction—strongly acid to slightly acid

2BCg or 2Cg horizon (if it occurs):

Hue—10YR, 7.5YR, 2.5Y, 5Y, or N

Value—4 to 6

Chroma—0 to 8

Texture—clay, clay loam, silty clay, silty clay loam,

or loam

Reaction—moderately acid to slightly alkaline

Coffeen Series

Taxonomic classification: Coarse-silty, mixed,

superactive, mesic Fluvaquentic Hapludolls

Typical Pedon

Coffeen silt loam, 0 to 2 percent slopes, frequently

flooded; 860 feet north and 1,740 feet west of the

southeast corner of sec. 24, T. 20 N., R. 3 E.; in

Whiteside County, Illinois; USGS Erie topographic

quadrangle; lat. 41 degrees 42 minutes 09 seconds N.

and long. 90 degrees 05 minutes 56 seconds W., NAD

27:

Ap—0 to 9 inches; very dark grayish brown (10YR 3/2)

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

granular structure; friable; neutral; abrupt smooth

boundary.

A—9 to 17 inches; very dark grayish brown (10YR 3/2)

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

medium and fine subangular blocky structure

parting to moderate fine granular; friable; neutral;

clear smooth boundary.

Bw1—17 to 24 inches; brown (10YR 4/3) silt loam;

moderate medium subangular blocky structure;

friable; few faint very dark grayish brown (10YR

3/2) organic coatings on faces of peds; common

fine faint dark grayish brown (10YR 4/2) iron

depletions and common fine faint dark yellowish

brown (10YR 4/4) iron masses in the matrix;

neutral; clear smooth boundary.

Bw2—24 to 33 inches; brown (10YR 4/3) silt loam;

moderate medium subangular blocky structure;

friable; common fine faint grayish brown (10YR

5/2) iron depletions and common fine faint brown

(10YR 5/3) iron masses in the matrix; slightly

alkaline; clear smooth boundary.

BCg—33 to 46 inches; grayish brown (2.5Y 5/2) silt

loam; weak medium subangular blocky structure;

friable; common fine prominent strong brown

(7.5YR 4/6) and dark yellowish brown (10YR 4/4)

iron masses in the matrix; common fine rounded
40 Soil Survey of

iron-manganese concretions; slightly alkaline;

gradual smooth boundary.

Cg—46 to 60 inches; grayish brown (2.5Y 5/2) and

brown (10YR 5/3) silt loam; massive; friable; few

fine rounded iron-manganese concretions; slightly

alkaline.

Range in Characteristics

Thickness of the mollic epipedon: 10 to 18 inches

Thickness of the solum: 30 to 64 inches

Ap or A horizon:

Hue—10YR

Value—2 or 3

Chroma—1 to 3

Bw or Bg horizon:

Hue—10YR or 2.5Y

Value—4 to 6

Chroma—2 or 3

Texture—silt loam; thin lenses of loam or sandy

loam in some pedons

C or Cg horizon:

Hue—10YR, 2.5Y, or 5Y

Value—4 to 8

Chroma—1 to 3

Texture—silt loam; strata of loam or sandy loam in

some pedons

3428A—Coffeen silt loam, 0 to 2 percent

slopes, frequently flooded

Setting

Landform: Flood plains

Composition

Coffeen and similar soils: 90 percent

Dissimilar soils: 10 percent

Minor Components

Similar soils:

• Soils that have a thicker surface layer

• Soils that have a light-colored layer of overwash

material

• Soils that are underlain by sand within a depth of 60

inches

Dissimilar soils:

• The well drained Raddle soils on flood plains

Properties and Qualities of the Coffeen Soil

Parent material: Alluvium

Drainage class: Somewhat poorly drained

Slowest permeability within a depth of 40 inches:

Moderate

Permeability below a depth of 60 inches: Moderate or

moderately rapid

Depth to restrictive feature: More than 80 inches

Available water capacity to a depth of 60 inches: About

11.5 inches

Content of organic matter in the surface layer: 2 to 3

percent

Shrink-swell potential: Low

Depth and months of the highest apparent seasonal

high water table: 1 foot, January to May

Frequency and most likely period of flooding:

Frequent, November to June

Potential for frost action: High

Hazard of corrosion: High for steel and moderate for

concrete

Surface runoff class: Low

Susceptibility to water erosion: Slight

Susceptibility to wind erosion: Slight

Interpretive Groups

Land capability classification: 2w

Prime farmland status: Prime farmland where

protected from flooding or not frequently flooded

during the growing season

Hydric soil status: Not hydric

7428A—Coffeen silt loam, 0 to 2 percent

slopes, rarely flooded

Setting

Landform: Flood plains

Composition

Coffeen and similar soils: 85 percent

Dissimilar soils: 15 percent

Minor Components

Similar soils:

• Soils that have a thicker surface layer

• Soils that have a light-colored layer of overwash

material

• Soils that are underlain by sand within a depth of 60

inches

Dissimilar soils:

• The poorly drained Sawmill soils in the lower

positions on flood plains

Properties and Qualities of the Coffeen Soil

Parent material: Alluvium

Drainage class: Somewhat poorly drained
Rock Island County, Illinois 41

Slowest permeability within a depth of 40 inches:

Moderate

Permeability below a depth of 60 inches: Moderate or

moderately rapid

Depth to restrictive feature: More than 80 inches

Available water capacity to a depth of 60 inches: About

11.5 inches

Content of organic matter in the surface layer: 2 to 3

percent

Shrink-swell potential: Low

Depth and months of the highest apparent seasonal

high water table: 1 foot, January to May

Frequency and most likely period of flooding: Rare,

November to June

Potential for frost action: High

Hazard of corrosion: High for steel and moderate for

concrete

Surface runoff class: Low

Susceptibility to water erosion: Slight

Susceptibility to wind erosion: Slight

Interpretive Groups

Land capability classification: 1

Prime farmland status: Prime farmland

Hydric soil status: Not hydric

Coloma Series

Taxonomic classification: Mixed, mesic Lamellic

Udipsamments

Typical Pedon

Coloma sand, 1 to 7 percent slopes; 1,500 feet east

and 1,800 feet south of the northwest corner of sec.

20, T. 14 N., R. 5 W.; in Mercer County, Illinois; USGS

Joy topographic quadrangle; lat. 41 degrees 11

minutes 49 seconds N. and long. 90 degrees 59

minutes 23 seconds W., NAD 27:

Ap—0 to 9 inches; dark grayish brown (10YR 4/2)

sand, light grayish brown (10YR 6/2) dry; weak

medium granular structure; very friable; neutral;

clear wavy boundary.

Bw1—9 to 16 inches; brown (10YR 4/3) sand; single

grain; loose; neutral; gradual wavy boundary.

Bw2—16 to 29 inches; dark yellowish brown (10YR

4/4) sand; single grain; loose; slightly acid; gradual

wavy boundary.

Bw3—29 to 50 inches; yellowish brown (10YR 5/4)

sand; single grain; loose; slightly acid; abrupt

smooth boundary.

E&Bt1—50 to 65 inches; about 95 percent yellowish

brown (10YR 5/4) sand (E); single grain; loose;

about 5 percent brown (7.5YR 4/4) loamy sand

(Bt) consisting of several thin lamellae (total

thickness less than 1 inch); weak fine and medium

subangular blocky structure; very friable; neutral;

clear smooth boundary.

E&Bt2—65 to 80 inches; about 90 percent yellowish

brown (10YR 5/4) sand (E); single grain; loose;

about 10 percent brown (7.5YR 4/4) loamy sand

(Bt) consisting of several thin lamellae (total

thickness less than 2 inches); weak fine and

medium subangular blocky structure; very friable;

neutral.

Range in Characteristics

Depth to first lamellae: 40 to 60 inches

Ap or A horizon:

Hue—7.5YR or 10YR

Value—2 to 4

Chroma—1 to 3

Texture—sand or loamy sand

Bw horizon:

Hue—7.5YR or 10YR

Value—4 to 6

Chroma—4 to 6

Texture—sand or loamy sand

E part of E&Bt horizon:

Hue—5YR, 7.5YR, or 10YR

Value—4 to 7

Chroma—3 to 6

Texture—sand, loamy sand, or sandy loam

Bt part of E&Bt horizon:

Hue—5YR, 7.5YR, or 10YR

Value—3 to 5

Chroma—3 to 6

Texture—sandy loam, loamy sand, or sand

C horizon (if it occurs):

Hue—5YR, 7.5YR, or 10YR

Value—4 to 7

Chroma—3 to 6

Texture—sand

689B—Coloma sand, 1 to 7 percent

slopes

Setting

Landform: Dunes

Position on the landform: Shoulders

Composition

Coloma and similar soils: 100 percent
42 Soil Survey of

Minor Components

Similar soils:

• Soils that have more clay in the upper part

• Soils that have less textural banding in the lower part

• Soils that have a darker surface layer

Properties and Qualities of the Coloma Soil

Parent material: Eolian sands

Drainage class: Excessively drained

Slowest permeability within a depth of 40 inches:

Moderately rapid

Permeability below a depth of 60 inches: Moderately

rapid or rapid

Depth to restrictive feature: More than 80 inches

Available water capacity to a depth of 60 inches: About

4.2 inches

Content of organic matter in the surface layer: 0.5 to

2.0 percent

Shrink-swell potential: Low

Flooding: None

Accelerated erosion: None or slight

Potential for frost action: Low

Hazard of corrosion: Low for steel and moderate for

concrete

Surface runoff class: Negligible

Susceptibility to water erosion: Slight

Susceptibility to wind erosion: Very high

Interpretive Groups

Land capability classification: 4s

Prime farmland status: Not prime farmland

Hydric soil status: Not hydric

689D—Coloma sand, 7 to 15 percent

slopes

Setting

Landform: Dunes

Position on the landform: Shoulders

Composition

Coloma and similar soils: 100 percent

Minor Components

Similar soils:

• Soils that have more clay in the upper part

• Soils that have less textural banding in the lower part

• Soils that have a darker surface layer

Properties and Qualities of the Coloma Soil

Parent material: Eolian sands

Drainage class: Excessively drained

Slowest permeability within a depth of 40 inches:

Moderately rapid

Permeability below a depth of 60 inches: Moderately

rapid or rapid

Depth to restrictive feature: More than 80 inches

Available water capacity to a depth of 60 inches: About

4.1 inches

Content of organic matter in the surface layer: 0.5 to

2.0 percent

Shrink-swell potential: Low

Flooding: None

Accelerated erosion: None or slight

Potential for frost action: Low

Hazard of corrosion: Low for steel and moderate for

concrete

Surface runoff class: Very low

Susceptibility to water erosion: Moderate

Susceptibility to wind erosion: Very high

Interpretive Groups

Land capability classification: 6s

Prime farmland status: Not prime farmland

Hydric soil status: Not hydric

Coyne Series

Taxonomic classification: Coarse-loamy, mixed, active,

mesic Typic Argiudolls

Typical Pedon (Official Series Description)

Coyne fine sandy loam, 0 to 2 percent slopes; 244 feet

east and 847 feet south of the center of sec. 10, T. 20

N., R. 2 E.; in Rock Island County, Illinois; USGS

Cordova topographic quadrangle; lat. 41 degrees 44

minutes 04 seconds N. and long. 90 degrees 15

minutes 21 seconds W., NAD 27:

Ap—0 to 9 inches; very dark gray (10YR 3/1) fine

sandy loam, gray (10YR 5/1) dry; weak coarse

subangular blocky structure parting to moderate

very fine and fine granular; very friable; slightly

acid; abrupt smooth boundary.

A1—9 to 13 inches; black (10YR 2/1) fine sandy loam,

dark gray (10YR 4/1) dry; weak coarse subangular

blocky structure parting to moderate very fine and

fine granular; very friable; slightly acid; clear

smooth boundary.

A2—13 to 23 inches; very dark gray (10YR 3/1) and

very dark grayish brown (10YR 3/2) fine sandy

loam, gray (10YR 5/1) and grayish brown (10YR

5/2) dry; moderate fine granular structure; very

friable; slightly acid; clear smooth boundary.

BA—23 to 28 inches; intermingled very dark grayish
Rock Island County, Illinois 43

brown (10YR 3/2), dark brown (10YR 3/3), and

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

weak coarse subangular blocky structure parting

to weak very fine and fine granular; very friable;

moderately acid; clear smooth boundary.

Bw—28 to 42 inches; brown (7.5YR 4/4) fine sandy

loam; weak coarse subangular blocky structure;

very friable; few fine black (10YR 2/1) iron and

manganese concretions; moderately acid; clear

smooth boundary.

2Bt1—42 to 52 inches; reddish brown (5YR 4/4) silty

clay loam; strong medium and coarse subangular

blocky structure; firm; many distinct dark reddish

brown (5YR 3/3) clay films on faces of peds;

moderately acid; abrupt smooth boundary.

2Bt2—52 to 55 inches; reddish brown (5YR 4/4) loam;

strong medium and coarse subangular blocky

structure; firm; many distinct dark reddish brown

(5YR 3/3) clay films on faces of peds; moderately

acid; abrupt smooth boundary.

3C—55 to 60 inches; brown (7.5YR 4/4) sand and

gravel; single grain; loose; moderately acid.

Range in Characteristics

Thickness of the solum: 48 to 72 inches

Depth to the argillic horizon: More than 40 inches

A horizon:

Hue—10YR

Value—2 or 3

Chroma—1 to 3

Texture—loam, fine sandy loam, or loamy fine

sand

Reaction—moderately acid to neutral

Bw horizon:

Hue—7.5YR or 10YR

Value—4 or 5

Chroma—3 to 5

Texture—loam or fine sandy loam

Reaction—moderately acid to neutral

2Bt horizon:

Hue—5YR or 2.5YR

Value—4 to 6

Chroma—3 to 6

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

clay

Reaction—moderately acid to neutral

3C horizon:

Hue—7.5YR or 10YR

Value—3 to 6

Chroma—3 to 8

Texture—sand or sand and gravel with strata of

clay loam, loam, silty clay loam, or silt

loam

Reaction—moderately acid to moderately alkaline

764A—Coyne fine sandy loam, 0 to 2

percent slopes

Setting

Landform: Lake plains

Position on the landform: Summits

Composition

Coyne and similar soils: 95 percent

Dissimilar soils: 5 percent

Minor Components

Similar soils:

• Soils that have less sand and more clay in the

underlying material

• Soils that have less silt and clay and more sand in

the upper part

• Soils that have a perched seasonal high water table

within a depth of 60 inches

Dissimilar soils:

• Somewhat poorly drained soils on summits

Properties and Qualities of the Coyne Soil

Parent material: Lacustrine deposits

Drainage class: Well drained

Slowest permeability within a depth of 40 inches:

Moderate

Permeability below a depth of 60 inches: Rapid to

moderately slow

Depth to restrictive feature: More than 80 inches

Available water capacity to a depth of 60 inches: About

9.6 inches

Content of organic matter in the surface layer: 2 to 4

percent

Shrink-swell potential: Moderate

Flooding: None

Accelerated erosion: None or slight

Potential for frost action: Moderate

Hazard of corrosion: Moderate for steel and moderate

for concrete

Surface runoff class: Low

Susceptibility to water erosion: Slight

Susceptibility to wind erosion: Moderately high

Interpretive Groups

Land capability classification: 2s

Prime farmland status: Prime farmland

Hydric soil status: Not hydric
44 Soil Survey of

764C—Coyne fine sandy loam, 5 to 10

percent slopes

Setting

Landform: Lake plains

Position on the landform: Shoulders

Composition

Coyne and similar soils: 95 percent

Dissimilar soils: 5 percent

Minor Components

Similar soils:

• Soils that have less sand and more clay in the

underlying material

• Soils that have less silt and clay and more sand in

the upper part

• Soils that have a perched seasonal high water table

within a depth of 60 inches

Dissimilar soils:

• Somewhat poorly drained soils on summits

Properties and Qualities of the Coyne Soil

Parent material: Lacustrine deposits

Drainage class: Well drained

Slowest permeability within a depth of 40 inches:

Moderate

Permeability below a depth of 60 inches: Rapid to

moderately slow

Depth to restrictive feature: More than 80 inches

Available water capacity to a depth of 60 inches: About

9.6 inches

Content of organic matter in the surface layer: 2 to 4

percent

Shrink-swell potential: Moderate

Flooding: None

Accelerated erosion: None or slight

Potential for frost action: Moderate

Hazard of corrosion: Moderate for steel and moderate

for concrete

Surface runoff class: Medium

Susceptibility to water erosion: Moderate

Susceptibility to wind erosion: Moderately high

Interpretive Groups

Land capability classification: 3e

Prime farmland status: Not prime farmland

Hydric soil status: Not hydric

Denny Series

Taxonomic classification: Fine, smectitic, mesic Mollic

Albaqualfs

Typical Pedon

Denny silt loam, 0 to 2 percent slopes, at an elevation

of 720 feet; 225 feet north and 1,680 feet east of the

southwest corner of sec. 25, T. 7 N., R. 3 W.; in

McDonough County, Illinois; USGS Good Hope

topographic quadrangle; lat. 40 degrees 33 minutes 31

seconds N. and long. 90 degrees 41 minutes 14

seconds W., NAD 27:

Ap—0 to 8 inches; very dark gray (10YR 3/1) silt loam,

gray (10YR 5/1) dry; weak fine granular structure;

very friable; few very fine roots throughout;

moderately acid; abrupt smooth boundary.

Eg1—8 to 14 inches; dark grayish brown (10YR 4/2)

silt loam, light brownish gray (10YR 6/2) dry; weak

thick platy structure parting to weak thin platy;

very friable; few very fine roots throughout; few

very fine vesicular pores throughout; few distinct

very dark gray (10YR 3/1) organic coatings in root

channels; common faint grayish brown (10YR 5/2)

clay depletions on faces of peds; common fine

distinct dark yellowish brown (10YR 3/6) masses

that have accumulated iron and manganese and

are throughout the horizon; few fine black (7.5YR

2.5/1) iron and manganese concretions in the

matrix; moderately acid; clear smooth boundary.

Eg2—14 to 21 inches; grayish brown (10YR 5/2) silt

loam, light gray (10YR 7/2) dry; weak thick platy

structure parting to moderate medium platy;

friable; few very fine roots throughout; few fine

tubular pores and few very fine vesicular pores

throughout; few distinct very dark gray (10YR 3/1)

organic coatings in root channels; common fine

distinct dark brown (10YR 3/3) masses that have

accumulated iron and manganese and are

throughout the horizon; common fine black (7.5YR

2.5/1) iron and manganese concretions in the

matrix; moderately acid; abrupt smooth boundary.

Btg1—21 to 29 inches; grayish brown (10YR 5/2) silty

clay loam; moderate fine and medium subangular

blocky structure; firm; few very fine roots between

peds; common distinct dark grayish brown (10YR

4/2) clay films on faces of peds; few distinct very

dark gray (10YR 3/1) organic coatings in root

channels; many fine distinct dark yellowish brown

(10YR 4/6) and common fine faint yellowish brown

(10YR 5/4) masses that have accumulated iron

and manganese and are throughout the horizon;

common fine black (7.5YR 2.5/1) iron and

manganese concretions in the matrix; moderately

acid; clear smooth boundary.

Btg2—29 to 38 inches; grayish brown (10YR 5/2) silty

clay loam; moderate medium prismatic structure

parting to moderate medium subangular blocky;
Rock Island County, Illinois 45

firm; few very fine roots between peds; common

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

faces of peds; few distinct very dark gray (10YR

3/1) organic coatings in root channels; many fine

distinct dark yellowish brown (10YR 4/6) and

common fine distinct yellowish brown (10YR 5/8)

masses that have accumulated iron and

manganese and are throughout the horizon;

common fine black (7.5YR 2.5/1) iron and

manganese concretions in the matrix; moderately

acid; gradual smooth boundary.

Btg3—38 to 46 inches; light brownish gray (2.5Y 6/2)

silty clay loam; moderate coarse prismatic

structure parting to moderate coarse subangular

blocky; firm; very few fine roots between peds;

common distinct dark grayish brown (10YR 4/2)

clay films on faces of peds; few distinct very dark

gray (10YR 3/1) organic coatings in root channels;

many fine prominent dark yellowish brown (10YR

4/6) and common fine prominent strong brown

(7.5YR 5/6) masses that have accumulated iron

and manganese and are throughout the horizon;

common fine black (7.5YR 2.5/1) iron and

manganese concretions in the matrix; moderately

acid; gradual wavy boundary.

Cg1—46 to 63 inches; light brownish gray (2.5Y 6/2)

silty clay loam; massive; firm; few very fine roots

between peds; few very fine vesicular pores

throughout; very few distinct very dark gray (10YR

3/1) organic coatings in root channels; many fine

prominent dark yellowish brown (10YR 4/6) and

common fine prominent strong brown (7.5YR 5/6)

masses that have accumulated iron and

manganese and are throughout the horizon; few

medium black (7.5YR 2.5/1) iron and manganese

concretions in the matrix; slightly acid; diffuse

wavy boundary.

Cg2—63 to 80 inches; light brownish gray (2.5Y 6/2)

silt loam; massive; firm; many very fine vesicular

pores throughout; very few distinct very dark gray

(10YR 3/1) organic coatings in root channels;

many fine prominent dark yellowish brown (10YR

4/6) and common fine prominent strong brown

(7.5YR 5/6) masses that have accumulated iron

and manganese and are throughout the horizon;

few medium black (7.5YR 2.5/1) iron and

manganese concretions in the matrix; slightly acid.

Range in Characteristics

Depth to the base of the diagnostic horizon: 40 to 65

inches

Ap or A horizon:

Hue—10YR

Value—2 or 3

Chroma—1 or 2

Texture—silt loam

Eg horizon:

Hue—10YR or 2.5Y

Value—4 to 6

Chroma—1 or 2

Texture—silt loam

Btg horizon:

Hue—10YR, 2.5Y, or 5Y

Value—4 to 6

Chroma—1 or 2

Texture—silty clay loam or silty clay

Cg horizon:

Hue—10YR, 2.5Y, or 5Y

Value—4 to 6

Chroma—1 or 2

Texture—silt loam or silty clay loam

45A—Denny silt loam, 0 to 2 percent

slopes

Setting

Landform: Depressions

Composition

Denny and similar soils: 98 percent

Dissimilar soils: 2 percent

Minor Components

Similar soils:

• Soils that have a thicker surface layer

• Soils that have less clay in the subsoil

• Soils that have a seasonal high water table below a

depth of 1 foot

Dissimilar soils:

• The moderately well drained Buckhart soils on

summits

• The well drained Osco soils on summits

Properties and Qualities of the Denny Soil

Parent material: Loess

Drainage class: Poorly drained

Slowest permeability within a depth of 40 inches: Slow

Permeability below a depth of 60 inches: Moderately

slow

Depth to restrictive feature: More than 80 inches

Available water capacity to a depth of 60 inches: About

11.6 inches

Content of organic matter in the surface layer: 3 to 4

percent

Shrink-swell potential: High
46 Soil Survey of

Depth and months of the highest apparent seasonal

high water table: At the surface, January to May

Ponding depth: 0.5 foot during wet periods

Flooding: None

Potential for frost action: High

Hazard of corrosion: High for steel and moderate for

concrete

Surface runoff class: Negligible

Susceptibility to water erosion: Slight

Susceptibility to wind erosion: Slight

Interpretive Groups

Land capability classification: 3w

Prime farmland status: Prime farmland where drained

Hydric soil status: Hydric

Dickinson Series

Taxonomic classification: Coarse-loamy, mixed,

superactive, mesic Typic Hapludolls

Typical Pedon

Dickinson sandy loam, 0 to 2 percent slopes; 360 feet

north and 1,720 feet west of the center of sec. 17, T.

17 N., R. 6 E.; in Bureau County, Illinois; USGS

Mineral topographic quadrangle; lat. 41 degrees 27

minutes 37 seconds N. and long. 89 degrees 50

minutes 09 seconds W., NAD 27:

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

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

fine granular structure; very friable; few fine roots;

moderately acid; abrupt smooth boundary.

A1—8 to 15 inches; very dark brown (10YR 2/2) sandy

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

medium subangular blocky structure; very friable;

few fine roots; moderately acid; clear smooth

boundary.

A2—15 to 20 inches; very dark grayish brown (10YR

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

weak medium subangular blocky structure; very

friable; few fine roots; common very dark brown

(10YR 2/2) organic coatings on faces of peds;

slightly acid; clear smooth boundary.

Bw—20 to 31 inches; brown (10YR 4/3) sandy loam;

weak medium prismatic structure parting to weak

medium subangular blocky; very friable; few fine

roots; many distinct dark brown (10YR 3/3)

organic coatings on faces of peds; slightly acid;

clear smooth boundary.

Bt—31 to 36 inches; yellowish brown (10YR 5/6)

loamy sand; weak medium prismatic structure

parting to weak medium subangular blocky; very

friable; common distinct brown (10YR 4/3) clay

films bridging sand grains; slightly acid; clear

smooth boundary.

BC—36 to 47 inches; yellowish brown (10YR 5/6)

sand; weak coarse prismatic structure; very

friable; moderately acid; clear smooth boundary.

C—47 to 60 inches; yellowish brown (10YR 5/6) sand;

single grain; loose; strong brown (7.5YR 5/6)

bands 1

/2 inch to 2 inches thick at depths of 52, 56,

and 58 inches; moderately acid.

Range in Characteristics

Thickness of the mollic epipedon: 12 to 24 inches

Ap or A horizon:

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

BC and/or C horizon:

Hue—7.5YR or 10YR

Value—4 or 5

Chroma—3 to 6

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

fine sand

87A—Dickinson sandy loam, 0 to 2

percent slopes

Setting

Landform: Outwash plains

Position on the landform: Summits

Composition

Dickinson and similar soils: 90 percent

Dissimilar soils: 10 percent

Minor Components

Similar soils:

• Soils that have a thinner surface layer

• Soils that have more sand and gravel

• Soils that have more clay

Dissimilar soils:

• The somewhat poorly drained Hoopeston soils on

footslopes

Properties and Qualities of the Dickinson Soil

Parent material: Eolian sands over outwash
Rock Island County, Illinois 47

Drainage class: Well drained

Slowest permeability within a depth of 40 inches:

Moderately rapid

Permeability below a depth of 60 inches: Rapid

Depth to restrictive feature: More than 80 inches

Available water capacity to a depth of 60 inches: About

5.5 inches

Content of organic matter in the surface layer: 1 to 2

percent

Shrink-swell potential: Low

Flooding: None

Accelerated erosion: None or slight

Potential for frost action: Moderate

Hazard of corrosion: Low for steel and moderate for

concrete

Surface runoff class: Very low

Susceptibility to water erosion: Slight

Susceptibility to wind erosion: Moderately high

Interpretive Groups

Land capability classification: 2s

Prime farmland status: Prime farmland

Hydric soil status: Not hydric

87C2—Dickinson sandy loam, 5 to 10

percent slopes, eroded

Setting

Landform: Dunes

Position on the landform: Backslopes

Composition

Dickinson and similar soils: 95 percent

Dissimilar soils: 5 percent

Minor Components

Similar soils:

• Soils that have a thinner surface layer

• Soils that have more sand and gravel

• Soils that have more clay

Dissimilar soils:

• The somewhat poorly drained Hoopeston soils on

footslopes

Properties and Qualities of the Dickinson Soil

Parent material: Eolian sands

Drainage class: Well drained

Slowest permeability within a depth of 40 inches:

Moderately rapid

Permeability below a depth of 60 inches: Rapid

Depth to restrictive feature: More than 80 inches

Available water capacity to a depth of 60 inches: About

5.4 inches

Content of organic matter in the surface layer: 1 to 2

percent

Shrink-swell potential: Low

Flooding: None

Accelerated erosion: The surface layer has been

thinned by erosion.

Potential for frost action: Moderate

Hazard of corrosion: Low for steel and moderate for

concrete

Surface runoff class: Low

Susceptibility to water erosion: Moderate

Susceptibility to wind erosion: Moderately high

Interpretive Groups

Land capability classification: 3e

Prime farmland status: Prime farmland

Hydric soil status: Not hydric

Dorchester Series

Taxonomic classification: Fine-silty, mixed,

superactive, calcareous, mesic Typic Udifluvents

Typical Pedon

Dorchester silt loam, 0 to 2 percent slopes; 1,600 feet

east and 1,650 feet south of the northwest corner of

sec. 36, T. 10 N., R. 6 E.; in Peoria County, Illinois;

USGS Oak Hill topographic quadrangle; lat. 40

degrees 48 minutes 31 seconds N. and long. 89

degrees 46 minutes 11 seconds W., NAD 27:

Ap—0 to 9 inches; dark grayish brown (10YR 4/2) silt

loam, light gray (10YR 6/1) dry; weak medium

platy structure parting to weak very fine

subangular blocky; friable; few very fine roots; few

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

stains on faces of peds; slightly effervescent;

slightly alkaline; abrupt smooth boundary.

C—9 to 32 inches; stratified dark grayish brown (10YR

4/2), grayish brown (10YR 5/2), brown (10YR 5/3),

very dark gray (10YR 3/1), and very dark grayish

brown (10YR 3/2) silt loam; few thin strata of loam;

massive with moderate thin bedding planes

resulting from stratification; friable; few very fine

roots; slightly effervescent; slightly alkaline; abrupt

smooth boundary.

2Ab1—32 to 43 inches; black (10YR 2/1) silt loam;

weak fine subangular blocky structure parting to

weak very fine granular; friable; slightly alkaline;

gradual smooth boundary.

2Ab2—43 to 60 inches; very dark gray (10YR 3/1) silt

loam; moderate fine subangular blocky structure;

friable; many faint black (10YR 2/1) organic stains

on faces of peds; few fine distinct brown (10YR
48 Soil Survey of

4/3) redoximorphic features below a depth of 48

inches; slightly alkaline.

Range in Characteristics

Thickness of the solum: Less than 10 inches

Depth to the 2Ab horizon: 20 to 45 inches

Ap or A horizon:

Hue—10YR

Value—3 or 4

Chroma—2 or 3

Texture—silt loam, loam, or silty clay loam

C horizon:

Hue—10YR

Value—3 to 5

Chroma—2 or 3

Texture—silt loam; thin strata of loam in some

pedons

2Ab horizon:

Hue—10YR

Value—2 or 3

Chroma—1 to 3

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

3239A—Dorchester silt loam, 0 to 2

percent slopes, frequently flooded

Setting

Landform: Flood plains

Composition

Dorchester and similar soils: 95 percent

Dissimilar soils: 5 percent

Minor Components

Similar soils:

• Soils that are not calcareous

• Soils that do not have a buried surface layer within a

depth of 60 inches

• Soils that contain more sand throughout

• Soils that have a seasonal high water table within a

depth of 60 inches

Dissimilar soils:

• The somewhat poorly drained Orion soils on

footslopes

• The poorly drained Sawmill soils in the lower

positions on flood plains

Properties and Qualities of the

Dorchester Soil

Parent material: Alluvium

Drainage class: Well drained

Slowest permeability within a depth of 40 inches:

Moderate

Permeability below a depth of 60 inches: Moderate

Depth to restrictive feature: More than 80 inches

Available water capacity to a depth of 60 inches: About

13.1 inches

Content of organic matter in the surface layer: 0.5 to

2.0 percent

Shrink-swell potential: Moderate

Depth and months of the highest apparent seasonal

high water table: 4 feet, February to April

Frequency and most likely period of flooding:

Frequent, November to June

Potential for frost action: High

Hazard of corrosion: High for steel and low for concrete

Surface runoff class: Low

Susceptibility to water erosion: Slight

Susceptibility to wind erosion: Slight

Interpretive Groups

Land capability classification: 2w

Prime farmland status: Prime farmland where drained

and either protected from flooding or not

frequently flooded during the growing season

Hydric soil status: Not hydric

7239A—Dorchester silt loam, 0 to 2

percent slopes, rarely flooded

Setting

Landform: Flood plains

Composition

Dorchester and similar soils: 95 percent

Dissimilar soils: 5 percent

Minor Components

Similar soils:

• Soils that are not calcareous

• Soils that do not have a buried surface layer within a

depth of 60 inches

• Soils that contain more sand throughout

• Soils that have a seasonal high water table within a

depth of 60 inches

Dissimilar soils:

• The somewhat poorly drained Orion soils on

footslopes

• The poorly drained Sawmill soils in the lower

positions on flood plains

Properties and Qualities of the

Dorchester Soil

Parent material: Alluvium
Rock Island County, Illinois 49

Drainage class: Well drained

Slowest permeability within a depth of 40 inches:

Moderate

Permeability below a depth of 60 inches: Moderate

Depth to restrictive feature: More than 80 inches

Available water capacity to a depth of 60 inches: About

13.1 inches

Content of organic matter in the surface layer: 0.5 to

2.0 percent

Shrink-swell potential: Moderate

Depth and months of the highest apparent seasonal

high water table: 4 feet, February to April

Frequency and most likely period of flooding: Rare,

November to June

Potential for frost action: High

Hazard of corrosion: High for steel and low for

concrete

Surface runoff class: Low

Susceptibility to water erosion: Slight

Susceptibility to wind erosion: Slight

Interpretive Groups

Land capability classification: 1

Prime farmland status: Prime farmland

Hydric soil status: Not hydric

Elkhart Series

Taxonomic classification: Fine-silty, mixed,

superactive, mesic Typic Argiudolls

Taxadjunct features: The Elkhart soil in map unit

567C2 has a thinner dark surface layer than is

defined as the range for the series. This soil is

classified as a Mollic Hapludalf.

Typical Pedon (Official Series Description)

Elkhart silt loam, 5 to 10 percent slopes, at an

elevation of 570 feet; 2,060 feet south and 1,248 feet

west of the northeast corner of sec. 32, T. 19 N., R. 3

W.; in Logan County, Illinois; USGS Broadwell

topographic quadrangle; lat. 40 degrees 03 minutes 26

seconds N. and long. 89 degrees 26 minutes 58

seconds W., NAD 27:

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

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

fine and medium granular structure; friable;

common very fine roots; slightly acid; abrupt

smooth boundary.

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

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

moderate fine granular structure; friable; common

very fine roots; slightly acid; clear smooth

boundary.

BA—10 to 15 inches; dark brown (10YR 3/3) silty clay

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

and fine subangular blocky structure; friable;

common very fine roots; common faint very dark

grayish brown (10YR 3/2) organic coatings on

faces of peds; slightly acid; clear smooth

boundary.

Bt1—15 to 22 inches; dark yellowish brown (10YR 4/4)

silty clay loam; moderate fine subangular blocky

structure; firm; few very fine roots; common

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

organo-clay films on faces of peds; slightly acid;

clear smooth boundary.

Bt2—22 to 28 inches; dark yellowish brown (10YR 4/4)

silty clay loam; moderate fine and medium

subangular blocky structure; firm; few very fine

roots; few distinct dark brown (10YR 3/3) organoclay films on faces of peds; slightly acid; clear

smooth boundary.

BCt—28 to 31 inches; yellowish brown (10YR 5/4) silty

clay loam; weak medium and coarse subangular

blocky structure; friable; few very fine roots; few

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

few fine black (5YR 2.5/1) very weakly cemented

concretions of manganese with diffuse boundaries

in ped interiors; neutral; clear smooth boundary.

C—31 to 60 inches; yellowish brown (10YR 5/4) silt

loam; massive; friable; few very fine roots in the

upper 10 inches; common fine prominent strong

brown (7.5YR 5/8) masses of iron in ped interiors;

common medium distinct gray (10YR 6/1) iron

depletions along root channels and pores; strongly

effervescent; moderately alkaline.

Range in Characteristics

Thickness of the mollic epipedon: 10 to 20 inches

Depth to the base of the argillic horizon: 20 to 40

inches

Depth to carbonates: 20 to 40 inches

Ap, A, or AB horizon:

Hue—10YR

Value—2 or 3

Chroma—1 to 3

Texture—silt loam

Reaction—moderately acid to slightly alkaline

BA or Bt horizon:

Hue—7.5YR or 10YR

Value—3 to 5

Chroma—3 to 6

Texture—silty clay loam or silt loam

Reaction—moderately acid to neutral

BC horizon:

Hue—7.5YR, 10YR, or 2.5Y
50 Soil Survey of

Value—4 to 6

Chroma—3 to 6

Texture—silt loam or silty clay loam

Reaction—slightly acid to moderately alkaline

C horizon:

Hue—10YR, 2.5Y, or 5Y

Value—4 to 6

Chroma—1 to 6

Texture—silt or silt loam

Reaction—slightly alkaline or moderately alkaline

567C2—Elkhart silt loam, 5 to 10 percent

slopes, eroded

Setting

Landform: Ground moraines

Position on the landform: Backslopes and shoulders

Composition

Elkhart and similar soils: 90 percent

Dissimilar soils: 10 percent

Minor Components

Similar soils:

• Soils that have a lighter colored surface layer

• Soils that are not calcareous within a depth of 40

inches

• Soils that are underlain by clayey glacial till at a

depth of more than 40 inches

Dissimilar soils:

• The somewhat poorly drained Radford soils on

toeslopes

• The somewhat poorly drained Muscatune soils on

summits

Properties and Qualities of the Elkhart Soil

Parent material: Loess

Drainage class: Well drained

Slowest permeability within a depth of 40 inches:

Moderate

Permeability below a depth of 60 inches: Moderate

Depth to restrictive feature: More than 80 inches

Available water capacity to a depth of 60 inches: About

12.4 inches

Content of organic matter in the surface layer: 1 to 3

percent

Shrink-swell potential: Moderate

Depth and months of the highest apparent seasonal

high water table: 4 feet, February to April

Flooding: None

Accelerated erosion: The surface layer has been

thinned by erosion.

Potential for frost action: High

Hazard of corrosion: Moderate for steel and moderate

for concrete

Surface runoff class: Medium

Susceptibility to water erosion: Moderate

Susceptibility to wind erosion: Slight

Interpretive Groups

Land capability classification: 3e

Prime farmland status: Not prime farmland

Hydric soil status: Not hydric

567D2—Elkhart silt loam, 10 to 18 percent

slopes, eroded

Setting

Landform: Ground moraines

Position on the landform: Backslopes

Composition

Elkhart and similar soils: 97 percent

Dissimilar soils: 3 percent

Minor Components

Similar soils:

• Soils that have a lighter colored surface layer

• Soils that are not calcareous within a depth of 40

inches

• Soils that are underlain by clayey glacial till at a

depth of more than 40 inches

Dissimilar soils:

• The somewhat poorly drained Radford soils on

toeslopes

Properties and Qualities of the Elkhart Soil

Parent material: Loess

Drainage class: Well drained

Slowest permeability within a depth of 40 inches:

Moderate

Permeability below a depth of 60 inches: Moderate

Depth to restrictive feature: More than 80 inches

Available water capacity to a depth of 60 inches: About

12.4 inches

Content of organic matter in the surface layer: 2 to 3

percent

Shrink-swell potential: Moderate

Depth and months of the highest apparent seasonal

high water table: 4 feet, February to April

Flooding: None

Accelerated erosion: The surface layer has been

thinned by erosion.

Potential for frost action: High
Rock Island County, Illinois 51

Hazard of corrosion: Moderate for steel and moderate

for concrete

Surface runoff class: Medium

Susceptibility to water erosion: High

Susceptibility to wind erosion: Slight

Interpretive Groups

Land capability classification: 3e

Prime farmland status: Not prime farmland

Hydric soil status: Not hydric

Fayette Series

Taxonomic classification: Fine-silty, mixed,

superactive, mesic Typic Hapludalfs

Typical Pedon

Fayette silt loam, 10 to 18 percent slopes, eroded;

2,100 feet north and 1,700 feet west of the southeast

corner of sec. 31, T. 12 N., R. 3 W.; in Warren County,

Illinois; USGS Rozetta topographic quadrangle; lat. 40

degrees 59 minutes 13 seconds N. and long. 90

degrees 46 minutes 18 seconds W., NAD 27:

Ap—0 to 5 inches; mixed dark grayish brown (10YR

4/2) and yellowish brown (10YR 5/4) silt loam, light

brownish gray (10YR 6/2) dry; moderate medium

granular structure; friable; common fine roots

throughout; moderately acid; clear smooth

boundary.

EB—5 to 9 inches; mixed brown (10YR 5/3) and

yellowish brown (10YR 5/4) silt loam; weak

medium platy structure parting to moderate fine

subangular blocky; friable; common fine roots

between peds; few faint dark yellowish brown

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

acid; clear smooth boundary.

Bt1—9 to 13 inches; dark yellowish brown (10YR 4/4)

silt loam; moderate fine and medium subangular

blocky structure; friable; few fine roots between

peds; common faint brown (10YR 4/3) clay films

on faces of peds; moderately acid; clear smooth

boundary.

Bt2—13 to 27 inches; yellowish brown (10YR 5/4) silty

clay loam; moderate medium subangular blocky

structure; friable; few fine roots between peds;

common faint dark yellowish brown (10YR 4/4)

clay films on faces of peds; moderately acid;

gradual smooth boundary.

Bt3—27 to 38 inches; yellowish brown (10YR 5/4) silty

clay loam; weak coarse prismatic structure parting

to moderate medium subangular blocky; friable;

common faint dark yellowish brown (10YR 4/4)

clay films on faces of peds; common distinct light

gray (10YR 7/2) (dry) clay depletions on faces of

peds; few prominent dark brown (7.5YR 3/2)

accumulations of iron-manganese on faces of

peds; moderately acid; gradual wavy boundary.

BC—38 to 55 inches; yellowish brown (10YR 5/4) silt

loam; moderate medium and coarse subangular

blocky structure; friable; common faint dark

yellowish brown (10YR 4/4) clay films on faces of

peds; common distinct light gray (10YR 7/2) (dry)

clay depletions on faces of peds; few prominent

dark brown (7.5YR 3/2) accumulations of ironmanganese on faces of peds; moderately acid;

clear wavy boundary.

C—55 to 60 inches; yellowish brown (10YR 5/4) silt

loam; massive; friable; few prominent dark brown

(7.5YR 3/2) concretions of iron and manganese

throughout the matrix; moderately acid.

Range in Characteristics

Thickness of the solum: 36 to 70 inches

Depth to free carbonates: More than 40 inches

Ap or A horizon:

Hue—10YR

Value—2 to 4

Chroma—1 to 3

E horizon (if it occurs):

Value—3 to 5

Chroma—1 to 4

Bt horizon:

Hue—10YR

Value—4 or 5

Chroma—3 to 6

BC and C horizons:

Hue—10YR

Value—4 or 5

Chroma—4 to 6

Texture—silt loam or silty clay loam

280B—Fayette silt loam, 2 to 5 percent

slopes

Setting

Landform: Ground moraines

Position on the landform: Summits and shoulders

Composition

Fayette and similar soils: 97 percent

Dissimilar soils: 3 percent

Minor Components

Similar soils:

• Soils that have a darker surface layer
52 Soil Survey of

• Soils that have a seasonal high water table within a

depth of 6 feet

• Soils that are calcareous within a depth of 40 inches

• Soils that have loamy or sandy layers within a depth

of 60 inches

Dissimilar soils:

• The somewhat poorly drained Atterberry and

Stronghurst soils on summits

Properties and Qualities of the Fayette Soil

Parent material: Loess

Drainage class: Well drained

Slowest permeability within a depth of 40 inches:

Moderate

Permeability below a depth of 60 inches: Moderate

Depth to restrictive feature: More than 80 inches

Available water capacity to a depth of 60 inches: About

11.6 inches

Content of organic matter in the surface layer: 1 to 3

percent

Shrink-swell potential: Moderate

Flooding: None

Accelerated erosion: None or slight

Potential for frost action: High

Hazard of corrosion: Moderate for steel and moderate

for concrete

Surface runoff class: Low

Susceptibility to water erosion: Moderate

Susceptibility to wind erosion: Slight

Interpretive Groups

Land capability classification: 2e

Prime farmland status: Prime farmland

Hydric soil status: Not hydric

280B2—Fayette silt loam, 2 to 5 percent

slopes, eroded

Setting

Landform: Ground moraines

Position on the landform: Summits and shoulders

Composition

Fayette and similar soils: 94 percent

Dissimilar soils: 6 percent

Minor Components

Similar soils:

• Soils that have a darker surface layer

• Soils that have a seasonal high water table within a

depth of 6 feet

• Soils that are calcareous within a depth of 40 inches

• Soils that have loamy or sandy layers within a depth

of 60 inches

Dissimilar soils:

• The somewhat poorly drained Atterberry and

Stronghurst soils on summits

Properties and Qualities of the Fayette Soil

Parent material: Loess

Drainage class: Well drained

Slowest permeability within a depth of 40 inches:

Moderate

Permeability below a depth of 60 inches: Moderate

Depth to restrictive feature: More than 80 inches

Available water capacity to a depth of 60 inches: About

11.4 inches

Content of organic matter in the surface layer: 1 to 2

percent

Shrink-swell potential: Moderate

Flooding: None

Accelerated erosion: The surface layer has been

thinned by erosion.

Potential for frost action: High

Hazard of corrosion: Moderate for steel and moderate

for concrete

Surface runoff class: Low

Susceptibility to water erosion: Moderate

Susceptibility to wind erosion: Slight

Interpretive Groups

Land capability classification: 2e

Prime farmland status: Prime farmland

Hydric soil status: Not hydric

280C2—Fayette silt loam, 5 to 10 percent

slopes, eroded

Setting

Landform: Ground moraines

Position on the landform: Shoulders and backslopes

Composition

Fayette and similar soils: 95 percent

Dissimilar soils: 5 percent

Minor Components

Similar soils:

• Soils that have a darker surface layer

• Soils that have a seasonal high water table within a

depth of 6 feet

• Soils that are calcareous within a depth of 40 inches

• Soils that have loamy or sandy layers within a depth

of 60 inches
Rock Island County, Illinois 53

Dissimilar soils:

• The somewhat poorly drained Stronghurst soils on

summits

Properties and Qualities of the Fayette Soil

Parent material: Loess

Drainage class: Well drained

Slowest permeability within a depth of 40 inches:

Moderate

Permeability below a depth of 60 inches: Moderate

Depth to restrictive feature: More than 80 inches

Available water capacity to a depth of 60 inches: About

11.4 inches

Content of organic matter in the surface layer: 1 to 2

percent

Shrink-swell potential: Moderate

Flooding: None

Accelerated erosion: The surface layer has been

thinned by erosion.

Potential for frost action: High

Hazard of corrosion: Moderate for steel and moderate

for concrete

Surface runoff class: Medium

Susceptibility to water erosion: High

Susceptibility to wind erosion: Slight

Interpretive Groups

Land capability classification: 3e

Prime farmland status: Not prime farmland

Hydric soil status: Not hydric

280C3—Fayette silty clay loam, 5 to 10

percent slopes, severely eroded

Setting

Landform: Ground moraines

Position on the landform: Backslopes and shoulders

Composition

Fayette and similar soils: 94 percent

Dissimilar soils: 6 percent

Minor Components

Similar soils:

• Soils that have a darker surface layer

• Soils that have a seasonal high water table within a

depth of 6 feet

• Soils that are calcareous within a depth of 40 inches

• Soils that have loamy or sandy layers within a depth

of 60 inches

Dissimilar soils:

• Moderately well drained loess soils that are

underlain by paleosol till within a depth of 60 inches;

on shoulders and backslopes

• The somewhat poorly drained Stronghurst soils on

summits

Properties and Qualities of the Fayette Soil

Parent material: Loess

Drainage class: Well drained

Slowest permeability within a depth of 40 inches:

Moderate

Permeability below a depth of 60 inches: Moderate

Depth to restrictive feature: More than 80 inches

Available water capacity to a depth of 60 inches: About

11.4 inches

Content of organic matter in the surface layer: 0.5 to

2.0 percent

Shrink-swell potential: Moderate

Flooding: None

Accelerated erosion: The surface layer is mostly

subsoil material.

Potential for frost action: High

Hazard of corrosion: Moderate for steel and moderate

for concrete

Surface runoff class: Medium

Susceptibility to water erosion: High

Susceptibility to wind erosion: Very slight

Interpretive Groups

Land capability classification: 4e

Prime farmland status: Not prime farmland

Hydric soil status: Not hydric

3646L—Fluvaquents, loamy, 0 to 2

percent slopes, frequently flooded,

long duration

Setting

Landform: Flood plains

Composition

Fluvaquents and similar soils: 95 percent

Dissimilar soils: 5 percent

Minor Components

Similar soils:

• Soils that have more sand

• Soils that have more clay

Dissimilar soils:

• The somewhat poorly drained Hoopeston soils on

summits

Properties and Qualities of the Fluvaquents

Parent material: Alluvium
54 Soil Survey of

Drainage class: Poorly drained

Slowest permeability within a depth of 40 inches:

Moderate

Permeability below a depth of 60 inches: Moderate

Depth to restrictive feature: More than 80 inches

Available water capacity to a depth of 60 inches: About

11.9 inches

Content of organic matter in the surface layer: 2 to 4

percent

Shrink-swell potential: Moderate

Depth and months of the highest apparent seasonal

high water table: At the surface all year

Ponding depth: 0.2 foot during wet periods

Frequency and most likely period of flooding:

Frequent, November to June

Potential for frost action: High

Hazard of corrosion: Moderate for steel and low for

concrete

Surface runoff class: Negligible

Susceptibility to water erosion: Slight

Susceptibility to wind erosion: Slight

Interpretive Groups

Land capability classification: 5w

Prime farmland status: Not prime farmland

Hydric soil status: Hydric

Greenbush Series

Taxonomic classification: Fine-silty, mixed,

superactive, mesic Mollic Hapludalfs

Typical Pedon (Official Series Description)

Greenbush silt loam, 2 to 5 percent slopes, at an

elevation of 700 feet; 1,500 feet west and 1,500 feet

north of the southeast corner of sec. 18, T. 8 N., R. 1

W.; in Warren County, Illinois; USGS Greenbush

topographic quadrangle; lat. 40 degrees 40 minutes 40

seconds N. and long. 90 degrees 32 minutes 45

seconds W., NAD 27:

Ap—0 to 6 inches; very dark gray (10YR 3/1) silt loam,

gray (10YR 5/1) dry; moderate fine granular

structure; friable; slightly acid; abrupt smooth

boundary.

E—6 to 10 inches; dark grayish brown (10YR 4/2) silt

loam; weak thin platy structure; friable; common

faint very dark gray (10YR 3/1) organic coatings

on faces of peds; moderately acid; abrupt smooth

boundary.

BE—10 to 17 inches; brown (10YR 4/3) silt loam;

moderate medium platy structure parting to weak

fine subangular blocky; friable; few distinct very

dark gray (10YR 3/1) organic coatings and

common distinct gray (10YR 6/1) silt coatings on

faces of peds; moderately acid; clear smooth

boundary.

Bt1—17 to 29 inches; yellowish brown (10YR 5/4) silty

clay loam; weak medium prismatic structure

parting to moderate fine and medium angular

blocky; friable; common faint dark yellowish brown

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

distinct gray (10YR 6/1) silt coatings on faces of

peds; strongly acid; gradual smooth boundary.

Bt2—29 to 38 inches; brown (10YR 5/3) silty clay

loam; weak medium prismatic structure parting to

moderate fine angular blocky; friable; common

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

many faint light gray (10YR 7/2) silt coatings on

faces of peds; common medium distinct yellowish

brown (10YR 5/6) masses of iron; common

medium prominent light olive gray (5Y 6/2) iron

depletions within peds; common prominent black

(7.5YR 2.5/1) manganese oxide stains; strongly

acid; gradual wavy boundary.

Bt3—38 to 53 inches; brown (10YR 5/3) silty clay

loam; weak medium prismatic structure parting to

moderate fine angular blocky; friable; common

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

many distinct light gray (10YR 7/2) silt coatings on

faces of peds; common medium distinct yellowish

brown (10YR 5/6) masses of iron; common

medium prominent light olive gray (5Y 6/2) iron

depletions within peds; common prominent black

(7.5YR 2.5/1) manganese oxide stains; strongly

acid; gradual wavy boundary.

BCt—53 to 75 inches; brown (10YR 5/3) and light olive

gray (5Y 6/2) silt loam; weak medium and coarse

prismatic structure parting to weak fine and

medium angular blocky; friable; few faint brown

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

light gray (10YR 7/2) silt coatings on faces of

peds; common medium distinct yellowish brown

(10YR 5/6) masses of iron within peds; common

prominent black (7.5YR 2.5/1) manganese oxide

stains; moderately acid; gradual wavy boundary.

C—75 to 100 inches; yellowish brown (10YR 5/4) and

light olive gray (5Y 6/2) silt loam; massive; friable;

many medium distinct light brownish gray (10YR

6/2) iron depletions within peds; many prominent

black (7.5YR 2.5/1) manganese oxide stains;

moderately acid.

Range in Characteristics

Depth to carbonates: More than 60 inches

Depth to the base of the argillic horizon: 36 to 70

inches
Rock Island County, Illinois 55

Ap or A horizon:

Hue—10YR

Value—2 or 3

Chroma—1 or 2

E horizon:

Hue—10YR

Value—3 to 5

Chroma—2 or 3

Bt horizon:

Hue—10YR

Value—4 or 5

Chroma—3 to 6

Texture—silty clay loam

C horizon:

Hue—10YR or 2.5Y

Value—4 to 6

Chroma—2 to 6

Texture—silt loam

675A—Greenbush silt loam, 0 to 2 percent

slopes

Setting

Landform: Ground moraines

Position on the landform: Summits

Composition

Greenbush and similar soils: 90 percent

Dissimilar soils: 10 percent

Minor Components

Similar soils:

• Soils that have a thicker surface layer

• Soils that have a lighter colored surface layer

Dissimilar soils:

• The somewhat poorly drained Atterberry soils on

summits

• The poorly drained Denny soils in depressions

Properties and Qualities of the

Greenbush Soil

Parent material: Loess

Drainage class: Well drained

Slowest permeability within a depth of 40 inches:

Moderate

Permeability below a depth of 60 inches: Moderate

Depth to restrictive feature: More than 80 inches

Available water capacity to a depth of 60 inches: About

11.6 inches

Content of organic matter in the surface layer: 2 to 3

percent

Shrink-swell potential: Moderate

Depth and months of the highest apparent seasonal

high water table: 4 feet, February to April

Flooding: None

Accelerated erosion: None or slight

Potential for frost action: High

Hazard of corrosion: Moderate for steel and moderate

for concrete

Surface runoff class: Low

Susceptibility to water erosion: Slight

Susceptibility to wind erosion: Slight

Interpretive Groups

Land capability classification: 1

Prime farmland status: Prime farmland

Hydric soil status: Not hydric

675B—Greenbush silt loam, 2 to 5 percent

slopes

Setting

Landform: Ground moraines

Position on the landform: Summits and shoulders

Composition

Greenbush and similar soils: 95 percent

Dissimilar soils: 5 percent

Minor Components

Similar soils:

• Soils that have a thicker surface layer

• Soils that have a lighter colored surface layer

Dissimilar soils:

• The somewhat poorly drained Atterberry soils on

summits

• The poorly drained Denny soils in depressions

Properties and Qualities of the

Greenbush Soil

Parent material: Loess

Drainage class: Well drained

Slowest permeability within a depth of 40 inches:

Moderate

Permeability below a depth of 60 inches: Moderate

Depth to restrictive feature: More than 80 inches

Available water capacity to a depth of 60 inches: About

11.8 inches

Content of organic matter in the surface layer: 2 to 3

percent

Shrink-swell potential: Moderate

Depth and months of the highest apparent seasonal

high water table: 4 feet, February to April

Flooding: None

Accelerated erosion: None or slight
56 Soil Survey of

Potential for frost action: High

Hazard of corrosion: Moderate for steel and moderate

for concrete

Surface runoff class: Low

Susceptibility to water erosion: Moderate

Susceptibility to wind erosion: Slight

Interpretive Groups

Land capability classification: 2e

Prime farmland status: Prime farmland

Hydric soil status: Not hydric

Hickory Series

Taxonomic classification: Fine-loamy, mixed, active,

mesic Typic Hapludalfs

Typical Pedon

Hickory silt loam, 18 to 35 percent slopes; 320 feet

south and 2,520 feet west of the northeast corner of

sec. 18, T. 15 N., R. 6 E.; in Bureau County, Illinois;

USGS Neponset topographic quadrangle; lat. 41

degrees 19 minutes 59 seconds N. and long. 89

degrees 50 minutes 50 seconds W., NAD 27:

A—0 to 4 inches; dark brown (10YR 3/3) silt loam,

brown (10YR 5/3) dry; moderate fine granular

structure; friable; common fine and medium roots

throughout; 1 percent gravel; slightly acid; clear

smooth boundary.

Bt1—4 to 13 inches; dark yellowish brown (10YR 4/4)

silty clay loam; weak fine subangular blocky

structure; friable; common fine roots between

peds; common prominent brown (7.5YR 4/4) clay

films on faces of peds; 2 percent gravel; few fine

rounded black (7.5YR 2.5/1) concretions of ironmanganese in the matrix; slightly acid; clear

smooth boundary.

2Bt2—13 to 23 inches; dark yellowish brown (10YR

4/4) clay loam; moderate fine and medium

subangular blocky structure; friable; common fine

roots between peds; many distinct brown (7.5YR

4/4) clay films on faces of peds; 5 percent gravel;

few fine rounded black (7.5YR 2.5/1) concretions

of iron-manganese in the matrix; neutral; clear

smooth boundary.

2Bt3—23 to 31 inches; dark yellowish brown (10YR

4/4) clay loam; moderate medium subangular

blocky structure; firm; few very fine and fine roots

between peds; many distinct brown (7.5YR 4/4)

clay films on faces of peds; 3 percent gravel; few

fine rounded black (7.5YR 2.5/1) concretions of

iron-manganese in the matrix; neutral; gradual

wavy boundary.

2Bt4—31 to 40 inches; dark yellowish brown (10YR

4/4) clay loam; weak medium and coarse

subangular blocky structure; firm; few very fine

and fine roots between peds; common distinct

brown (7.5YR 4/4) clay films on faces of peds; few

fine rounded black (7.5YR 2.5/1) concretions of

iron-manganese in the matrix; 5 percent gravel;

neutral; clear smooth boundary.

2BC—40 to 54 inches; brown (7.5YR 4/4) clay loam;

weak coarse subangular blocky structure; firm; few

distinct dark reddish brown (5YR 3/3) clay films on

faces of peds; few fine rounded black (7.5YR

2.5/1) concretions of iron-manganese in the

matrix; 5 percent gravel; slightly acid; clear smooth

boundary.

2C—54 to 60 inches; yellowish brown (10YR 5/4) clay

loam; massive; firm; common distinct brown

(7.5YR 4/4) clay films on rocks and along pores;

few medium faint yellowish brown (10YR 5/6) iron

masses in the matrix; 4 percent gravel;

effervescent; moderately alkaline.

Range in Characteristics

Thickness of the loess: Less than 20 inches

Depth to the argillic horizon: More than 40 inches

Depth to carbonates: More than 40 inches

Thickness of the solum: Less than 80 inches

Ap or A horizon:

Hue—7.5YR or 10YR

Value—2 to 4

Chroma—2 or 3

Texture—silt loam or loam

E horizon (if it occurs):

Value—4 to 6

Chroma—2 to 4

Texture—silt loam or loam

Bt horizon:

Hue—7.5YR, 10YR, or 2.5Y

Value—4 to 6

Chroma—3 to 6

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

gravelly clay loam

CB or C horizon:

Hue—7.5YR, 10YR, or 2.5Y

Value—5 to 7

Chroma—1 to 8

Texture—loam, clay loam, or sandy loam or the

gravelly analogs of these textures
Rock Island County, Illinois 57

8D2—Hickory silt loam, 10 to 18 percent

slopes, eroded

Setting

Landform: Ground moraines

Position on the landform: Backslopes

Composition

Hickory and similar soils: 90 percent

Dissimilar soils: 10 percent

Minor Components

Similar soils:

• Soils that are calcareous within a depth of 40

inches

• Soils that have a surface layer of clay loam and that

are more eroded

• Soils that contain more sand and less clay in the

lower part

Dissimilar soils:

• Soils that contain more than 20 inches of loess over

clayey paleosol till

• The well drained Marseilles soils on backslopes and

footslopes

Properties and Qualities of the Hickory Soil

Parent material: Loamy till

Drainage class: Well drained

Slowest permeability within a depth of 40 inches:

Moderate

Permeability below a depth of 60 inches: Moderate

Depth to restrictive feature: More than 80 inches

Available water capacity to a depth of 60 inches: About

10.2 inches

Content of organic matter in the surface layer: 1 to 2

percent

Shrink-swell potential: Moderate

Flooding: None

Accelerated erosion: The surface layer has been

thinned by erosion.

Potential for frost action: Moderate

Hazard of corrosion: Moderate for steel and moderate

for concrete

Surface runoff class: Medium

Susceptibility to water erosion: High

Susceptibility to wind erosion: Slight

Interpretive Groups

Land capability classification: 3e

Prime farmland status: Not prime farmland

Hydric soil status: Not hydric

8D3—Hickory clay loam, 10 to 18 percent

slopes, severely eroded

Setting

Landform: Ground moraines

Position on the landform: Backslopes

Composition

Hickory and similar soils: 90 percent

Dissimilar soils: 10 percent

Minor Components

Similar soils:

• Soils that are calcareous within a depth of 40

inches

• Soils that have less clay in the surface layer

• Soils that have more sand and less clay in the lower

part

Dissimilar soils:

• Soils that contain more than 20 inches of loess over

clayey paleosol till

• The well drained Marseilles soils on backslopes and

footslopes

Properties and Qualities of the Hickory Soil

Parent material: Loamy till

Drainage class: Well drained

Slowest permeability within a depth of 40 inches:

Moderate

Permeability below a depth of 60 inches: Moderate

Depth to restrictive feature: More than 80 inches

Available water capacity to a depth of 60 inches: About

9.4 inches

Content of organic matter in the surface layer: 0.5 to

1.0 percent

Shrink-swell potential: Moderate

Flooding: None

Accelerated erosion: The surface layer is mostly

subsoil material.

Potential for frost action: Moderate

Hazard of corrosion: Moderate for steel and moderate

for concrete

Surface runoff class: Medium

Susceptibility to water erosion: High

Susceptibility to wind erosion: Slight

Interpretive Groups

Land capability classification: 4e

Prime farmland status: Not prime farmland

Hydric soil status: Not hydric
58 Soil Survey of

8F—Hickory silt loam, 18 to 35 percent

slopes

Setting

Landform: Ground moraines

Position on the landform: Backslopes

Composition

Hickory and similar soils: 90 percent

Dissimilar soils: 10 percent

Minor Components

Similar soils:

• Soils that are calcareous within a depth of 40

inches

• Soils that have a surface layer of clay loam and that

are more eroded

• Soils that have more sand and less clay in the lower

part

Dissimilar soils:

• Soils that contain more than 20 inches of loess over

clayey paleosol till

• The well drained Marseilles soils on footslopes

Properties and Qualities of the Hickory Soil

Parent material: Till

Drainage class: Well drained

Slowest permeability within a depth of 40 inches:

Moderate

Permeability below a depth of 60 inches: Moderate

Depth to restrictive feature: More than 80 inches

Available water capacity to a depth of 60 inches: About

10.5 inches

Content of organic matter in the surface layer: 1 to 3

percent

Shrink-swell potential: Moderate

Flooding: None

Accelerated erosion: None or slight

Potential for frost action: Moderate

Hazard of corrosion: Moderate for steel and moderate

for concrete

Surface runoff class: High

Susceptibility to water erosion: High

Susceptibility to wind erosion: Slight

Interpretive Groups

Land capability classification: 6e

Prime farmland status: Not prime farmland

Hydric soil status: Not hydric

8F3—Hickory clay loam, 18 to 35 percent

slopes, severely eroded

Setting

Landform: Ground moraines

Position on the landform: Backslopes

Composition

Hickory and similar soils: 90 percent

Dissimilar soils: 10 percent

Minor Components

Similar soils:

• Soils that are calcareous within a depth of 40

inches

• Soils that have less clay in the surface layer

• Soils that have more sand and less clay in the lower

part

Dissimilar soils:

• Soils that contain more than 20 inches of loess over

clayey paleosol till

• The well drained Marseilles soils on backslopes

Properties and Qualities of the Hickory Soil

Parent material: Loamy till

Drainage class: Well drained

Slowest permeability within a depth of 40 inches:

Moderate

Permeability below a depth of 60 inches: Moderate

Depth to restrictive feature: More than 80 inches

Available water capacity to a depth of 60 inches: About

9.9 inches

Content of organic matter in the surface layer: 0.5 to

1.0 percent

Shrink-swell potential: Moderate

Flooding: None

Accelerated erosion: The surface layer is mostly

subsoil material.

Potential for frost action: Moderate

Hazard of corrosion: Moderate for steel and moderate

for concrete

Surface runoff class: High

Susceptibility to water erosion: High

Susceptibility to wind erosion: Slight

Interpretive Groups

Land capability classification: 6e

Prime farmland status: Not prime farmland

Hydric soil status: Not hydric
Rock Island County, Illinois 59

898F3—Hickory-Sylvan complex, 18 to 35

percent slopes, severely eroded

Setting

Landform: Ground moraines

Position on the landform: Hickory—lower part of

backslopes; Sylvan—upper part of backslopes

Composition

Hickory and similar soils: 50 percent

Sylvan and similar soils: 35 percent

Dissimilar soils: 15 percent

Minor Components

Similar soils:

• Soils that have less clay in the surface layer

Dissimilar soils:

• The somewhat poorly drained Atlas soils on

backslopes

Properties and Qualities of the Hickory Soil

Parent material: Till

Drainage class: Well drained

Slowest permeability within a depth of 40 inches:

Moderate

Permeability below a depth of 60 inches: Moderate

Depth to restrictive feature: More than 80 inches

Available water capacity to a depth of 60 inches: About

10.1 inches

Content of organic matter in the surface layer: 0.5 to

1.0 percent

Shrink-swell potential: Moderate

Flooding: None

Accelerated erosion: The surface layer is mostly

subsoil material.

Potential for frost action: Moderate

Hazard of corrosion: Moderate for steel and moderate

for concrete

Surface runoff class: High

Susceptibility to water erosion: High

Susceptibility to wind erosion: Slight

Properties and Qualities of the Sylvan Soil

Parent material: Loess

Drainage class: Well drained

Slowest permeability within a depth of 40 inches:

Moderate

Permeability below a depth of 60 inches: Moderate

Depth to restrictive feature: More than 80 inches

Available water capacity to a depth of 60 inches: About

12.1 inches

Content of organic matter in the surface layer: 0.5 to

1.0 percent

Shrink-swell potential: Moderate

Flooding: None

Accelerated erosion: The surface layer is mostly

subsoil material.

Potential for frost action: High

Hazard of corrosion: Moderate for steel and moderate

for concrete

Surface runoff class: High

Susceptibility to water erosion: High

Susceptibility to wind erosion: Very slight

Interpretive Groups

Land capability classification: Hickory—6e; Sylvan—6e

Prime farmland status: Not prime farmland

Hydric soil status: Hickory—not hydric; Sylvan—not

hydric

898G—Hickory-Sylvan silt loams, 35 to 60

percent slopes

Setting

Landform: Ground moraines

Position on the landform: Hickory—lower part of

backslopes; Sylvan—upper part of backslopes

Composition

Hickory and similar soils: 60 percent

Sylvan and similar soils: 25 percent

Dissimilar soils: 15 percent

Minor Components

Similar soils:

• Soils that have a surface layer of clay loam or silty

clay loam and that are more eroded

Dissimilar soils:

• The somewhat poorly drained Atlas soils on

backslopes

Properties and Qualities of the Hickory Soil

Parent material: Till

Drainage class: Well drained

Slowest permeability within a depth of 40 inches:

Moderate

Permeability below a depth of 60 inches: Moderate

Depth to restrictive feature: More than 80 inches

Available water capacity to a depth of 60 inches: About

10.1 inches

Content of organic matter in the surface layer: 1 to 2

percent

Shrink-swell potential: Moderate

Flooding: None

Accelerated erosion: None or slight
60 Soil Survey of

Potential for frost action: Moderate

Hazard of corrosion: Moderate for steel and moderate

for concrete

Surface runoff class: High

Susceptibility to water erosion: High

Susceptibility to wind erosion: Slight

Properties and Qualities of the Sylvan Soil

Parent material: Loess

Drainage class: Well drained

Slowest permeability within a depth of 40 inches:

Moderate

Permeability below a depth of 60 inches: Moderate

Depth to restrictive feature: More than 80 inches

Available water capacity to a depth of 60 inches: About

12.1 inches

Content of organic matter in the surface layer: 1 to 2

percent

Shrink-swell potential: Moderate

Flooding: None

Accelerated erosion: None or slight

Potential for frost action: High

Hazard of corrosion: Moderate for steel and moderate

for concrete

Surface runoff class: High

Susceptibility to water erosion: High

Susceptibility to wind erosion: Slight

Interpretive Groups

Land capability classification: Hickory—7e; Sylvan—7e

Prime farmland status: Not prime farmland

Hydric soil status: Hickory—not hydric; Sylvan—not

hydric

946D3—Hickory-Atlas complex, 10 to 18

percent slopes, severely eroded

Setting

Landform: Ground moraines

Position on the landform: Hickory—lower and middle

parts of backslopes; Atlas—upper and middle

parts of backslopes

Composition

Hickory and similar soils: 50 percent

Atlas and similar soils: 35 percent

Dissimilar soils: 15 percent

Minor Components

Similar soils:

• Soils that are calcareous within a depth of 40 inches

• Soils that have less clay in the surface layer

Dissimilar soils:

• Soils that contain more than 20 inches of loess over

the glacial till

• The well drained Marseilles soils on backslopes

• The somewhat poorly drained Orion and Radford

soils on footslopes

Properties and Qualities of the Hickory Soil

Parent material: Loamy till

Drainage class: Well drained

Slowest permeability within a depth of 40 inches:

Moderate

Permeability below a depth of 60 inches: Moderate

Depth to restrictive feature: More than 80 inches

Available water capacity to a depth of 60 inches: About

9.9 inches

Content of organic matter in the surface layer: 0.5 to

1.0 percent

Shrink-swell potential: Moderate

Flooding: None

Accelerated erosion: The surface layer is mostly

subsoil material.

Potential for frost action: Moderate

Hazard of corrosion: Moderate for steel and moderate

for concrete

Surface runoff class: Medium

Susceptibility to water erosion: High

Susceptibility to wind erosion: Slight

Properties and Qualities of the Atlas Soil

Parent material: Paleosol that formed in till

Drainage class: Somewhat poorly drained

Slowest permeability within a depth of 40 inches: Very

slow

Permeability below a depth of 60 inches: Slow

Depth to restrictive feature: More than 80 inches

Available water capacity to a depth of 60 inches: About

8 inches

Content of organic matter in the surface layer: 0.5 to

1.0 percent

Shrink-swell potential: High

Depth and months of the highest perched seasonal

high water table: 0.5 foot, January to May

Flooding: None

Accelerated erosion: The surface layer is mostly

subsoil material.

Potential for frost action: High

Hazard of corrosion: High for steel and moderate for

concrete

Surface runoff class: Very high

Susceptibility to water erosion: Moderate

Susceptibility to wind erosion: Very slight
Rock Island County, Illinois 61

Interpretive Groups

Land capability classification: Hickory—4e; Atlas—6e

Prime farmland status: Not prime farmland

Hydric soil status: Hickory—not hydric; Atlas—not

hydric

946F3—Hickory-Atlas complex, 18 to 35

percent slopes, severely eroded

Setting

Landform: Ground moraines

Position on the landform: Hickory—lower and middle

parts of backslopes; Atlas—upper and middle

parts of backslopes

Composition

Hickory and similar soils: 50 percent

Atlas and similar soils: 40 percent

Dissimilar soils: 10 percent

Minor Components

Similar soils:

• Soils that are calcareous within a depth of 40 inches

• Soils that have less clay in the surface layer

Dissimilar soils:

• Soils that contain deposits of loess over the glacial

till

• The well drained Marseilles soils on backslopes

• The somewhat poorly drained Orion and Radford

soils on toeslopes

Properties and Qualities of the Hickory Soil

Parent material: Till

Drainage class: Well drained

Slowest permeability within a depth of 40 inches:

Moderate

Permeability below a depth of 60 inches: Moderate

Depth to restrictive feature: More than 80 inches

Available water capacity to a depth of 60 inches: About

9.9 inches

Content of organic matter in the surface layer: 0.5 to

1.0 percent

Shrink-swell potential: Moderate

Flooding: None

Accelerated erosion: The surface layer is mostly

subsoil material.

Potential for frost action: Moderate

Hazard of corrosion: Moderate for steel and moderate

for concrete

Surface runoff class: High

Susceptibility to water erosion: High

Susceptibility to wind erosion: Moderate

Properties and Qualities of the Atlas Soil

Parent material: Paleosol that formed in till

Drainage class: Somewhat poorly drained

Slowest permeability within a depth of 40 inches: Very

slow

Permeability below a depth of 60 inches: Slow

Depth to restrictive feature: More than 80 inches

Available water capacity to a depth of 60 inches: About

8 inches

Content of organic matter in the surface layer: 0.5 to

1.0 percent

Shrink-swell potential: High

Depth and months of the highest perched seasonal

high water table: 0.5 foot, January to May

Flooding: None

Accelerated erosion: The surface layer is mostly

subsoil material.

Potential for frost action: High

Hazard of corrosion: High for steel and moderate for

concrete

Surface runoff class: Very high

Susceptibility to water erosion: High

Susceptibility to wind erosion: Moderate

Interpretive Groups

Land capability classification: Hickory—6e; Atlas—6e

Prime farmland status: Not prime farmland

Hydric soil status: Hickory—not hydric; Atlas—not

hydric

960D2—Hickory-Sylvan-Fayette silt

loams, 10 to 18 percent slopes, eroded

Setting

Landform: Ground moraines

Position on the landform: Hickory—lower part of

backslopes; Sylvan—middle part of backslopes;

Fayette—upper part of backslopes

Composition

Hickory and similar soils: 35 percent

Sylvan and similar soils: 35 percent

Fayette and similar soils: 30 percent

Minor Components

Similar soils:

• Soils that have a surface layer of clay loam or silty

clay loam and that are more eroded

Properties and Qualities of the Hickory Soil

Parent material: Till

Drainage class: Well drained
62 Soil Survey of

Slowest permeability within a depth of 40 inches:

Moderate

Permeability below a depth of 60 inches: Moderate

Depth to restrictive feature: More than 80 inches

Available water capacity to a depth of 60 inches: About

10.2 inches

Content of organic matter in the surface layer: 1 to 2

percent

Shrink-swell potential: Moderate

Flooding: None

Accelerated erosion: The surface layer has been

thinned by erosion.

Potential for frost action: Moderate

Hazard of corrosion: Moderate for steel and moderate

for concrete

Surface runoff class: Medium

Susceptibility to water erosion: High

Susceptibility to wind erosion: Slight

Properties and Qualities of the Sylvan Soil

Parent material: Loess

Drainage class: Well drained

Slowest permeability within a depth of 40 inches:

Moderate

Permeability below a depth of 60 inches: Moderate

Depth to restrictive feature: More than 80 inches

Available water capacity to a depth of 60 inches: About

12 inches

Content of organic matter in the surface layer: 1 to 2

percent

Shrink-swell potential: Moderate

Flooding: None

Accelerated erosion: The surface layer has been

thinned by erosion.

Potential for frost action: High

Hazard of corrosion: Moderate for steel and moderate

for concrete

Surface runoff class: Medium

Susceptibility to water erosion: High

Susceptibility to wind erosion: Slight

Properties and Qualities of the Fayette Soil

Parent material: Loess

Drainage class: Well drained

Slowest permeability within a depth of 40 inches:

Moderate

Permeability below a depth of 60 inches: Moderate

Depth to restrictive feature: More than 80 inches

Available water capacity to a depth of 60 inches: About

11.4 inches

Content of organic matter in the surface layer: 1 to 2

percent

Shrink-swell potential: Moderate

Flooding: None

Accelerated erosion: The surface layer has been

thinned by erosion.

Potential for frost action: High

Hazard of corrosion: Moderate for steel and moderate

for concrete

Surface runoff class: Medium

Susceptibility to water erosion: High

Susceptibility to wind erosion: Slight

Interpretive Groups

Land capability classification: Hickory—3e; Sylvan—

3e; Fayette—3e

Prime farmland status: Not prime farmland

Hydric soil status: Hickory—not hydric; Sylvan—not

hydric; Fayette—not hydric

960D3—Hickory-Sylvan-Fayette complex,

10 to 18 percent slopes, severely

eroded

Setting

Landform: Ground moraines

Position on the landform: Backslopes

Composition

Hickory and similar soils: 35 percent

Sylvan and similar soils: 35 percent

Fayette and similar soils: 30 percent

Minor Components

Similar soils:

• Soils that have less clay in the surface layer

Properties and Qualities of the Hickory Soil

Parent material: Till

Drainage class: Well drained

Slowest permeability within a depth of 40 inches:

Moderate

Permeability below a depth of 60 inches: Moderate

Depth to restrictive feature: More than 80 inches

Available water capacity to a depth of 60 inches: About

9.4 inches

Content of organic matter in the surface layer: 0.5 to

1.0 percent

Shrink-swell potential: Moderate

Flooding: None

Accelerated erosion: The surface layer is mostly

subsoil material.

Potential for frost action: Moderate

Hazard of corrosion: Moderate for steel and moderate

for concrete

Surface runoff class: Medium
Rock Island County, Illinois 63

Susceptibility to water erosion: High

Susceptibility to wind erosion: Moderate

Properties and Qualities of the Sylvan Soil

Parent material: Loess

Drainage class: Well drained

Slowest permeability within a depth of 40 inches:

Moderate

Permeability below a depth of 60 inches: Moderate

Depth to restrictive feature: More than 80 inches

Available water capacity to a depth of 60 inches: About

12.2 inches

Content of organic matter in the surface layer: 0.5 to

1.0 percent

Shrink-swell potential: Moderate

Flooding: None

Accelerated erosion: The surface layer is mostly

subsoil material.

Potential for frost action: High

Hazard of corrosion: Moderate for steel and moderate

for concrete

Surface runoff class: Medium

Susceptibility to water erosion: High

Susceptibility to wind erosion: Very slight

Properties and Qualities of the Fayette Soil

Parent material: Loess

Drainage class: Well drained

Slowest permeability within a depth of 40 inches:

Moderate

Permeability below a depth of 60 inches: Moderate

Depth to restrictive feature: More than 80 inches

Available water capacity to a depth of 60 inches: About

11.4 inches

Content of organic matter in the surface layer: 0.5 to

1.0 percent

Shrink-swell potential: Moderate

Flooding: None

Accelerated erosion: The surface layer is mostly

subsoil material.

Potential for frost action: High

Hazard of corrosion: Moderate for steel and moderate

for concrete

Surface runoff class: Medium

Susceptibility to water erosion: High

Susceptibility to wind erosion: Very slight

Interpretive Groups

Land capability classification: Hickory—4e; Sylvan—

4e; Fayette—4e

Prime farmland status: Not prime farmland

Hydric soil status: Hickory—not hydric; Sylvan—not

hydric; Fayette—not hydric

960F—Hickory-Sylvan-Fayette silt loams,

18 to 30 percent slopes

Setting

Landform: Ground moraines

Position on the landform: Hickory—lower part of

backslopes; Sylvan—middle part of backslopes;

Fayette—upper part of backslopes

Composition

Hickory and similar soils: 40 percent

Sylvan and similar soils: 40 percent

Fayette and similar soils: 20 percent

Minor Components

Similar soils:

• Soils that have a surface layer of clay loam or silty

clay loam and that are more eroded

Properties and Qualities of the Hickory Soil

Parent material: Till

Drainage class: Well drained

Slowest permeability within a depth of 40 inches:

Moderate

Permeability below a depth of 60 inches: Moderate

Depth to restrictive feature: More than 80 inches

Available water capacity to a depth of 60 inches: About

10.4 inches

Content of organic matter in the surface layer: 1 to 2

percent

Shrink-swell potential: Moderate

Flooding: None

Accelerated erosion: None or slight

Potential for frost action: Moderate

Hazard of corrosion: Moderate for steel and moderate

for concrete

Surface runoff class: High

Susceptibility to water erosion: High

Susceptibility to wind erosion: Slight

Properties and Qualities of the Sylvan Soil

Parent material: Loess

Drainage class: Well drained

Slowest permeability within a depth of 40 inches:

Moderate

Permeability below a depth of 60 inches: Moderate

Depth to restrictive feature: More than 80 inches

Available water capacity to a depth of 60 inches: About

12.2 inches

Content of organic matter in the surface layer: 1 to 2

percent

Shrink-swell potential: Moderate
64 Soil Survey of

Flooding: None

Accelerated erosion: None or slight

Potential for frost action: High

Hazard of corrosion: Moderate for steel and moderate

for concrete

Surface runoff class: High

Susceptibility to water erosion: High

Susceptibility to wind erosion: Slight

Properties and Qualities of the Fayette Soil

Parent material: Loess

Drainage class: Well drained

Slowest permeability within a depth of 40 inches:

Moderate

Permeability below a depth of 60 inches: Moderate

Depth to restrictive feature: More than 80 inches

Available water capacity to a depth of 60 inches: About

11.6 inches

Content of organic matter in the surface layer: 2 to 3

percent

Shrink-swell potential: Moderate

Flooding: None

Accelerated erosion: None or slight

Potential for frost action: High

Hazard of corrosion: Moderate for steel and moderate

for concrete

Surface runoff class: High

Susceptibility to water erosion: High

Susceptibility to wind erosion: Slight

Interpretive Groups

Land capability classification: Hickory—6e; Sylvan—

6e; Fayette—6e

Prime farmland status: Not prime farmland

Hydric soil status: Hickory—not hydric; Sylvan—not

hydric; Fayette—not hydric

Hoopeston Series

Taxonomic classification: Coarse-loamy, mixed,

superactive, mesic Aquic Hapludolls

Typical Pedon

Hoopeston sandy loam, 0 to 2 percent slopes; 2,530

feet south and 1,060 feet east of the northwest corner

of sec. 14, T. 19 N., R. 4 E.; in Whiteside County,

Illinois; USGS Erie topographic quadrangle; lat. 41

degrees 38 minutes 04 seconds N. and long. 90

degrees 00 minutes 45 seconds W., NAD 27:

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

dark gray (10YR 4/1) dry; weak fine subangular

blocky structure parting to weak fine granular; very

friable; common very fine roots throughout;

neutral; clear smooth boundary.

A—10 to 14 inches; very dark grayish brown (10YR

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

weak medium and fine subangular blocky

structure; very friable; common very fine roots

throughout; common faint very dark brown (10YR

2/2) organic coatings on faces of peds; neutral;

clear smooth boundary.

Bw1—14 to 21 inches; brown (10YR 5/3) sandy loam;

weak medium subangular blocky structure; very

friable; few very fine roots between peds; few

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

organic coatings on faces of peds and in root

channels; common fine faint dark grayish brown

(10YR 4/2) iron depletions and common fine

distinct yellowish brown (10YR 5/6) iron masses in

the matrix; neutral; clear smooth boundary.

Bw2—21 to 38 inches; brown (10YR 5/3) sandy loam;

weak coarse subangular blocky structure; very

friable; few very fine roots between peds; common

fine faint grayish brown (10YR 5/2) iron depletions

and common fine distinct yellowish brown (10YR

5/8) iron masses in the matrix; slightly acid; abrupt

smooth boundary.

C—38 to 60 inches; pale brown (10YR 6/3) sand;

single grain; loose; common fine faint light

brownish gray (10YR 6/2) iron depletions and

common fine prominent yellowish brown (10YR

5/8) iron masses in the matrix; neutral.

Range in Characteristics

Thickness of the mollic epipedon: 10 to 24 inches

Depth to free carbonates: More than 40 inches

Thickness of the solum: 20 to 54 inches

Ap or A horizon:

Hue—7.5YR or 10YR

Value—2 or 3

Chroma—1 to 3

Texture—sandy loam, fine sandy loam, or loam

Bw, Bt, Bg, and/or Btg horizon:

Hue—7.5YR, 10YR, or 2.5Y

Value—4 to 6

Chroma—1 to 6

Texture—sandy loam or fine sandy loam; strata of

loamy sand, loamy fine sand, loam, sandy clay

loam, silt loam, or sand in some pedons

Cg and/or C horizon:

Hue—7.5YR to 5Y

Value—3 to 6

Chroma—1 to 8
Rock Island County, Illinois 65

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

fine sand; loamy strata in some pedons

172A—Hoopeston sandy loam, 0 to 2

percent slopes

Setting

Landform: Outwash plains

Position on the landform: Summits

Composition

Hoopeston and similar soils: 92 percent

Dissimilar soils: 8 percent

Minor Components

Similar soils:

• Soils that have more clay and less sand

• Soils that have less clay and more sand

• Soils that have a seasonal high water table within a

depth of 1 foot

Dissimilar soils:

• The well drained Dickinson soils and other well

drained soils; on summits

• Poorly drained soils on toeslopes

Properties and Qualities of the

Hoopeston Soil

Parent material: Outwash

Drainage class: Somewhat poorly drained

Slowest permeability within a depth of 40 inches:

Moderately rapid

Permeability below a depth of 60 inches: Rapid

Depth to restrictive feature: More than 80 inches

Available water capacity to a depth of 60 inches: About

7.3 inches

Content of organic matter in the surface layer: 2 to 3

percent

Shrink-swell potential: Low

Depth and months of the highest apparent seasonal

high water table: 1 foot, January to June

Flooding: None

Accelerated erosion: None or slight

Potential for frost action: High

Hazard of corrosion: Low for steel and moderate for

concrete

Surface runoff class: Very low

Susceptibility to water erosion: Slight

Susceptibility to wind erosion: Moderately high

Interpretive Groups

Land capability classification: 2s

Prime farmland status: Prime farmland

Hydric soil status: Not hydric

Joslin Series

Taxonomic classification: Fine-loamy, mixed,

superactive, mesic Typic Argiudolls

Typical Pedon

Joslin silt loam, 2 to 5 percent slopes; 1,980 feet north

and 578 feet east of the southwest corner of the

southeast quarter of sec. 8, T. 18 N., R. 1 E.; in

Whiteside County, Illinois; USGS Silvis topographic

quadrangle; lat. 41 degrees 33 minutes 54 seconds N.

and long. 90 degrees 24 minutes 09 seconds W., NAD

27:

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

gray (10YR 4/1) dry; moderate fine and medium

granular structure; friable; few sand grains; slightly

alkaline; abrupt smooth boundary.

A—9 to 15 inches; very dark gray (10YR 3/1) silt loam,

gray (10YR 5/1) dry; moderate fine and medium

granular structure; friable; few sand grains; neutral;

clear smooth boundary.

BA—15 to 20 inches; mixed brown (10YR 4/3) and

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

and medium subangular blocky structure; friable;

few black (10YR 2/1) organic stains along root

channels; light gray (10YR 7/1) (dry) silt coatings

on faces of peds; few sand grains; slightly acid;

clear smooth boundary.

Bt1—20 to 28 inches; brown (10YR 4/3) silt loam;

moderate medium and coarse subangular blocky

structure; friable; common faint dark brown

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

very dark gray (10YR 3/1) organic stains along

root channels; few wormcasts; 20 percent sand;

few pebbles; slightly acid; gradual smooth

boundary.

Bt2—28 to 37 inches; yellowish brown (10YR 5/4) silt

loam; weak medium prismatic structure parting to

moderate medium subangular blocky; friable;

common prominent brown (7.5YR 4/2) clay films

on faces of peds; few black (10YR 2/1) organic

stains along root channels; 12 percent sand;

moderately acid; gradual smooth boundary.

Bt3—37 to 43 inches; yellowish brown (10YR 5/4) silt

loam; weak coarse prismatic structure; friable;

common prominent brown (7.5YR 4/2) clay films

on faces of peds; few black (10YR 2/1) organic

stains along root channels; few strata of reddish

brown (5YR 4/4) silty clay; 3 percent sand; slightly

acid; clear smooth boundary.

2Bt4—43 to 50 inches; reddish brown (5YR 4/4) silty

clay; moderate medium and coarse prismatic

structure; very firm; few distinct weak red (2.5YR

4/2) clay films on faces of peds; few root channels
66 Soil Survey of

filled with brownish yellow (10YR 6/6) material;

neutral; abrupt smooth boundary.

2Bt5—50 to 53 inches; reddish brown (5YR 4/4) silty

clay; moderate medium and coarse angular blocky

structure; very firm; few distinct weak red (2.5YR

4/2) clay films on faces of peds; many medium

prominent weak red (2.5YR 5/2) mottles; neutral;

abrupt smooth boundary.

3C—53 to 85 inches; variegated grayish brown (10YR

5/2), yellowish brown (10YR 5/6), and strong

brown (7.5YR 5/6) silt loam; massive; friable; few

strata of reddish brown (5YR 4/4) silty clay; few

prominent concretions of iron and manganese

oxides throughout the matrix; slightly alkaline.

Range in Characteristics

Thickness of the solum: 48 to 72 inches

Ap or A horizon:

Hue—10YR

Value—2 or 3

Chroma—1 to 3

Texture—silt loam or loam

Bw or Bt horizon:

Hue—7.5YR or 10YR

Value—4 or 5

Chroma—3 to 5

Texture—silt loam or loam

2Bt or 2BC horizon:

Hue—2.5YR

Value—4 to 6

Chroma—4 to 6

Texture—silty clay loam, silty clay, or clay

3C horizon:

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

loam; stratified in some pedons

525A—Joslin loam, bedrock substratum,

0 to 2 percent slopes

Setting

Landform: Lake plains

Composition

Joslin and similar soils: 100 percent

Minor Components

Similar soils:

• Soils that have bedrock at a depth of less than 40

inches or more than 60 inches

• Soils that have more clay and less sand in the

underlying material

• Soils that have less silt and clay and more sand in

the upper part

• Soils that have a perched seasonal high water table

within a depth of 60 inches

Properties and Qualities of the Joslin Soil

Parent material: Lacustrine deposits

Drainage class: Well drained

Slowest permeability within a depth of 40 inches:

Moderate

Permeability below a depth of 60 inches: Very slow

Depth to restrictive feature: 40 to 60 inches to bedrock

(lithic)

Available water capacity to a depth of 60 inches: About

9.6 inches

Content of organic matter in the surface layer: 2 to 3

percent

Shrink-swell potential: Moderate

Flooding: None

Accelerated erosion: None or slight

Potential for frost action: Moderate

Hazard of corrosion: Moderate for steel and moderate

for concrete

Surface runoff class: Low

Susceptibility to water erosion: Slight

Susceptibility to wind erosion: Moderately high

Interpretive Groups

Land capability classification: 1

Prime farmland status: Prime farmland

Hydric soil status: Not hydric

763A—Joslin silt loam, 0 to 2 percent

slopes

Setting

Landform: Lake plains

Composition

Joslin and similar soils: 97 percent

Dissimilar soils: 3 percent

Minor Components

Similar soils:

• Soils that have a thinner or lighter colored surface

layer

• Soils that have less sand and more clay in the

underlying material

• Soils that have less silt and clay and more sand in

the upper part

• Soils that have a perched seasonal high water table

within a depth of 60 inches
Rock Island County, Illinois 67

Dissimilar soils:

• Somewhat poorly drained soils on summits

Properties and Qualities of the Joslin Soil

Parent material: Lacustrine deposits

Drainage class: Well drained

Slowest permeability within a depth of 40 inches:

Moderate

Permeability below a depth of 60 inches: Moderately

slow

Depth to restrictive feature: More than 80 inches

Available water capacity to a depth of 60 inches: About

11.5 inches

Content of organic matter in the surface layer: 4 to 5

percent

Shrink-swell potential: Moderate

Flooding: None

Accelerated erosion: None or slight

Potential for frost action: Moderate

Hazard of corrosion: High for steel and moderate for

concrete

Surface runoff class: Low

Susceptibility to water erosion: Slight

Susceptibility to wind erosion: Slight

Interpretive Groups

Land capability classification: 1

Prime farmland status: Prime farmland

Hydric soil status: Not hydric

763B—Joslin silt loam, 2 to 5 percent

slopes

Setting

Landform: Lake plains

Composition

Joslin and similar soils: 97 percent

Dissimilar soils: 3 percent

Minor Components

Similar soils:

• Soils that have a thinner or lighter colored surface

layer

• Soils that have less sand and more clay in the

underlying material

• Soils that have less silt and clay and more sand in

the upper part

• Soils that have a perched seasonal high water table

within a depth of 60 inches

Dissimilar soils:

• Somewhat poorly drained soils on summits

Properties and Qualities of the Joslin Soil

Parent material: Lacustrine deposits

Drainage class: Well drained

Slowest permeability within a depth of 40 inches:

Moderate

Permeability below a depth of 60 inches: Moderately

slow

Depth to restrictive feature: More than 80 inches

Available water capacity to a depth of 60 inches: About

11.5 inches

Content of organic matter in the surface layer: 4 to 5

percent

Shrink-swell potential: Moderate

Flooding: None

Accelerated erosion: None or slight

Potential for frost action: Moderate

Hazard of corrosion: High for steel and moderate for

concrete

Surface runoff class: Low

Susceptibility to water erosion: Slight

Susceptibility to wind erosion: Slight

Interpretive Groups

Land capability classification: 2e

Prime farmland status: Prime farmland

Hydric soil status: Not hydric

Joy Series

Taxonomic classification: Fine-silty, mixed,

superactive, mesic Aquic Hapludolls

Typical Pedon

Joy silt loam, 0 to 2 percent slopes; 1,900 feet east

and 2,600 feet north of the southwest corner of sec.

26, T. 18 N., R. 3 E.; in Whiteside County, Illinois;

USGS Spring Hill topographic quadrangle; lat. 41

degrees 31 minutes 01 second N. and long. 90

degrees 06 minutes 59 seconds W., NAD 27:

Ap—0 to 5 inches; black (10YR 2/1) silt loam, dark

grayish brown (10YR 4/2) dry; moderate medium

granular structure; friable; moderately acid; abrupt

smooth boundary.

A1—5 to 13 inches; very dark gray (10YR 3/1) silt

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

fine subangular blocky structure parting to

moderate medium granular; friable; slightly acid;

clear smooth boundary.

A2—13 to 17 inches; very dark grayish brown (10YR

3/2) silt loam; moderate fine subangular blocky

structure parting to moderate medium granular;

friable; neutral; clear smooth boundary.
68 Soil Survey of

Bt1—17 to 21 inches; brown (10YR 4/3) silt loam;

moderate medium and fine subangular blocky

structure; friable; common faint dark grayish brown

(10YR 4/2) clay films on faces of peds; neutral;

clear smooth boundary.

Bt2—21 to 27 inches; mixed grayish brown (10YR 5/2)

and brown (10YR 5/3) silty clay loam; moderate

medium and fine subangular blocky structure;

friable; common faint dark grayish brown (10YR

4/2) clay films on faces of peds; few prominent

black (7.5YR 2.5/1) coatings of iron-manganese

on faces of peds; common medium distinct

yellowish brown (10YR 5/6) iron masses in the

matrix; neutral; clear smooth boundary.

Bt3—27 to 34 inches; yellowish brown (10YR 5/4) silt

loam; moderate fine and medium subangular

blocky structure; friable; common faint brown

(10YR 5/3) clay films on faces of peds; few

prominent black (7.5YR 2.5/1) coatings of ironmanganese on faces of peds; common fine

distinct light brownish gray (10YR 6/2) iron

depletions and yellowish brown (10YR 5/6) iron

masses in the matrix; neutral; clear smooth

boundary.

Bt4—34 to 49 inches; mixed light brownish gray (2.5Y

6/2) and yellowish brown (10YR 5/6) silt loam;

weak fine prismatic structure parting to weak fine

and medium subangular blocky; friable; few faint

grayish brown (10YR 5/2) clay films on faces of

peds; few prominent black (7.5YR 2.5/1) coatings

of iron-manganese on faces of peds; neutral;

gradual smooth boundary.

Cg—49 to 60 inches; light brownish gray (2.5Y 6/2) silt

loam; massive; friable; common prominent black

(7.5YR 2.5/1) coatings of iron-manganese along

cleavage planes; many medium prominent

yellowish brown (10YR 5/6) iron masses in the

matrix; neutral.

Range in Characteristics

Thickness of the mollic epipedon: 10 to 24 inches

Depth to free carbonates: More than 40 inches

Thickness of the solum: 36 to 60 inches

Ap or A horizon:

Hue—10YR

Value—2 or 3

Chroma—1 to 3

Texture—silt loam

Bw, Bg, or Bt horizon:

Hue—7.5YR, 10YR, or 2.5Y

Value—4 to 6

Chroma—2 to 6

Texture—silt loam or silty clay loam

C or Cg horizon:

Hue—10YR, 2.5Y, or 5Y

Value—4 to 7

Chroma—1 to 4

Texture—silt loam, very fine sandy loam, or loam

275A—Joy silt loam, 0 to 2 percent slopes

Setting

Landform: Ground moraines

Position on the landform: Summits

Composition

Joy and similar soils: 95 percent

Dissimilar soils: 5 percent

Minor Components

Similar soils:

• Soils that have less silt and more sand throughout

Dissimilar soils:

• The well drained Biggsville soils on summits

• The excessively drained Oakville soils on

shoulders

• The well drained Port Byron soils on shoulders

• The poorly drained Sable soils in depressions

Properties and Qualities of the Joy Soil

Parent material: Loess

Drainage class: Somewhat poorly drained

Slowest permeability within a depth of 40 inches:

Moderate

Permeability below a depth of 60 inches: Moderate

Depth to restrictive feature: More than 80 inches

Available water capacity to a depth of 60 inches: About

12.9 inches

Content of organic matter in the surface layer: 2 to 4

percent

Shrink-swell potential: Low

Depth and months of the highest apparent seasonal

high water table: 1 foot, March to June

Flooding: None

Accelerated erosion: None or slight

Potential for frost action: High

Hazard of corrosion: High for steel and moderate for

concrete

Surface runoff class: Low

Susceptibility to water erosion: Slight

Susceptibility to wind erosion: Slight

Interpretive Groups

Land capability classification: 1

Prime farmland status: Prime farmland

Hydric soil status: Not hydric
Rock Island County, Illinois 69

Landes Series

Taxonomic classification: Coarse-loamy, mixed,

superactive, mesic Fluventic Hapludolls

Typical Pedon

Landes fine sandy loam, 0 to 2 percent slopes, rarely

flooded; 99 feet south and 990 feet west of the

northeast corner of sec. 4, T. 18 N., R. 11 W.; in

Bureau County, Illinois; USGS Clearlake topographic

quadrangle; lat. 40 degrees 02 minutes 51 seconds N.

and long. 90 degrees 19 minutes 58 seconds W., NAD

27:

Ap—0 to 5 inches; very dark grayish brown (10YR 3/2)

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

subangular blocky structure parting to weak fine

granular; friable; few very fine roots; few fine very

dark gray (10YR 3/1) organic coatings on faces of

peds; neutral; abrupt smooth boundary.

A—5 to 14 inches; very dark grayish brown (10YR 3/2)

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

medium subangular blocky structure; friable; few

very fine roots; neutral; clear smooth boundary.

AB—14 to 19 inches; dark brown (10YR 3/3) loam,

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

subangular blocky structure; friable; few very fine

roots; many faint very dark grayish brown (10YR

3/2) organic coatings on faces of peds; neutral;

clear smooth boundary.

Bw1—19 to 23 inches; brown (10YR 4/3) loam; weak

fine and medium subangular blocky structure;

friable; few very fine roots; many faint dark brown

(10YR 3/3) and few faint very dark grayish brown

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

neutral; clear smooth boundary.

Bw2—23 to 28 inches; brown (10YR 4/3) fine sandy

loam; weak medium subangular blocky structure;

friable; few very fine roots; common faint dark

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

peds; neutral; clear smooth boundary.

Bw3—28 to 32 inches; brown (10YR 4/3) and dark

yellowish brown (10YR 4/4) fine sandy loam; weak

medium subangular blocky structure; very friable;

few very fine roots; common faint dark brown

(10YR 3/3) organic coatings on faces of peds; less

than 2 percent fine gravel; neutral; clear smooth

boundary.

BC—32 to 36 inches; dark yellowish brown (10YR 4/4)

and brown (10YR 4/3) loamy sand; weak medium

subangular blocky structure; very friable; few very

fine roots; 5 percent fine gravel; neutral; clear

smooth boundary.

C—36 to 60 inches; yellowish brown (10YR 5/4) sand;

single grain; loose; 2 percent fine gravel; neutral.

Range in Characteristics

Depth to carbonates (if they occur): More than 40

inches

Depth to the base of the cambic horizon: 22 to 40

inches

Ap, A, and/or AB horizon:

Hue—10YR

Value—2 or 3

Chroma—1 to 3

Texture—fine sandy loam, very fine sandy loam,

sandy loam, loam, loamy fine sand, loamy very

fine sand, loamy sand, or silt loam

Content of rock fragments—0 to 20 percent

Bw horizon:

Hue—10YR

Value—3 to 6

Chroma—2 to 4

Texture—loam, fine sandy loam, very fine sandy

loam, sandy loam, loamy fine sand, or loamy

very fine sand

Content of rock fragments—0 to 10 percent

BC and C horizons:

Hue—2.5YR to 10YR

Value—4 to 6

Chroma—1 to 4

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

sand, loamy fine sand, loamy very fine sand,

sandy loam, fine sandy loam, very fine sandy

loam, loam, or silt loam; stratified in some pedons

Content of rock fragments—0 to 10 percent

7304A—Landes fine sandy loam, 0 to 2

percent slopes, rarely flooded

Setting

Landform: Natural levees on flood plains

Composition

Landes and similar soils: 94 percent

Dissimilar soils: 6 percent

Minor Components

Similar soils:

• Soils that have a surface layer less than 10 inches

thick

• Soils that contain more sand in the upper part

• Soils that have a seasonal high water table within a

depth of 48 inches

Dissimilar soils:

• The somewhat poorly drained Orion and Radford

soils on footslopes
70 Soil Survey of

Properties and Qualities of the Landes Soil

Parent material: Loamy alluvium

Drainage class: Well drained

Slowest permeability within a depth of 40 inches:

Moderately rapid

Permeability below a depth of 60 inches: Rapid

Depth to restrictive feature: More than 80 inches

Available water capacity to a depth of 60 inches: About

7.7 inches

Content of organic matter in the surface layer: 1 to 2

percent

Shrink-swell potential: Low

Depth and months of the highest apparent seasonal

high water table: 4 feet, February to April

Frequency and most likely period of flooding: Rare,

November to June

Potential for frost action: Moderate

Hazard of corrosion: Low for steel and low for concrete

Surface runoff class: Very low

Susceptibility to water erosion: Slight

Susceptibility to wind erosion: Moderately high

Interpretive Groups

Land capability classification: 2s

Prime farmland status: Prime farmland

Hydric soil status: Not hydric

Lawler Series

Taxonomic classification: Fine-loamy over sandy or

sandy-skeletal, mixed, superactive, mesic Aquic

Hapludolls

Typical Pedon

Lawler loam, 0 to 2 percent slopes; 2,180 feet west

and 160 feet north of the southeast corner of sec. 28,

T. 20 N., R. 6 E.; in Whiteside County, Illinois; USGS

Tampico topographic quadrangle; lat. 41 degrees 41

minutes 09 seconds N. and long. 89 degrees 48

minutes 50 seconds W., NAD 27:

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

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

medium granular structure; friable; few very fine

roots throughout; moderately acid; abrupt smooth

boundary.

AB—10 to 15 inches; very dark grayish brown (10YR

3/2) loam, grayish brown (10YR 5/2) dry; weak

fine subangular blocky structure parting to weak

fine granular; friable; few fine roots throughout;

many faint black (10YR 2/1) organic coatings on

faces of peds; moderately acid; clear smooth

boundary.

Bw1—15 to 21 inches; brown (10YR 5/3) silt loam;

moderate medium subangular blocky structure;

friable; few fine roots between peds; many faint

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

of peds; common fine distinct yellowish brown

(10YR 5/8) iron masses in the matrix; moderately

acid; clear smooth boundary.

Bw2—21 to 26 inches; brown (10YR 5/3) silt loam;

moderate medium subangular blocky structure;

friable; few fine roots between peds; few faint dark

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

peds; common fine faint grayish brown (10YR 5/2)

iron depletions; common fine distinct yellowish

brown (10YR 5/8) iron masses in the matrix;

strongly acid; clear smooth boundary.

Bg—26 to 36 inches; grayish brown (10YR 5/2) loam;

moderate medium and coarse subangular blocky

structure; friable; few fine roots between peds; few

fine rounded black (7.5YR 2.5/1) concretions of

iron and manganese oxide in the matrix; common

fine prominent yellowish brown (10YR 5/8) iron

masses in the matrix; moderately acid; abrupt

smooth boundary.

2C—36 to 54 inches; brown (7.5YR 5/4) coarse sand;

single grain; loose; common fine prominent

yellowish brown (10YR 5/8) iron oxide in the

matrix; about 5 percent gravel; slightly acid; abrupt

smooth boundary.

2Cg—54 to 60 inches; dark grayish brown (2.5YR 4/2)

coarse sand; single grain; loose; about 5 percent

gravel; slightly acid.

Range in Characteristics

Thickness of the mollic epipedon: 10 to 24 inches

Depth to sandy sediments: 24 to 40 inches

Thickness of the solum: 24 to 40 inches

Ap or A horizon:

Hue—10YR

Value—2 or 3

Chroma—1 or 2

Texture—loam or silt loam

AB or BA horizon:

Hue—10YR

Value—3

Chroma—1 or 2

Texture—loam or clay loam

Bw, Bg, and/or BC horizon:

Hue—10YR or 2.5Y

Value—4 to 6

Chroma—2 to 6

Texture—clay loam, loam, silt loam, or sandy clay

loam
Rock Island County, Illinois 71

2C or 2Cg horizon:

Hue—7.5YR, 10YR, or 2.5Y

Value—4 to 8

Chroma—1 to 6

Texture—loamy coarse sand, loamy sand, coarse

sand, or sand or the gravelly or very gravelly

analogs of these textures

647A—Lawler loam, 0 to 2 percent slopes

Setting

Landform: Outwash plains

Composition

Lawler and similar soils: 90 percent

Dissimilar soils: 10 percent

Minor Components

Similar soils:

• Soils that have either more sand or more clay in the

upper part

• Soils that have less sand and more silt and clay in

the lower part

Dissimilar soils:

• The well drained Dickinson soils on summits

Properties and Qualities of the Lawler Soil

Parent material: Eolian deposits over outwash

Drainage class: Somewhat poorly drained

Slowest permeability within a depth of 40 inches:

Moderate

Permeability below a depth of 60 inches: Very rapid

Depth to restrictive feature: More than 80 inches

Available water capacity to a depth of 60 inches: About

6.5 inches

Content of organic matter in the surface layer: 4 to 5

percent

Shrink-swell potential: Low

Depth and months of the highest apparent seasonal

high water table: 1 foot, January to May

Flooding: None

Accelerated erosion: None or slight

Potential for frost action: High

Hazard of corrosion: High for steel and moderate for

concrete

Surface runoff class: Low

Susceptibility to water erosion: Slight

Susceptibility to wind erosion: Slight

Interpretive Groups

Land capability classification: 2s

Prime farmland status: Prime farmland

Hydric soil status: Not hydric

Lawson Series

Taxonomic classification: Fine-silty, mixed,

superactive, mesic Aquic Cumulic Hapludolls

Typical Pedon

Lawson silt loam, 0 to 2 percent slopes, occasionally

flooded; 318 feet south and 1,040 feet east of the

northwest corner of sec. 17, T. 17 N., R. 9 E.; in

Bureau County, Illinois; USGS Princeton North

topographic quadrangle; lat. 41 degrees 27 minutes 54

seconds N. and long. 89 degrees 29 minutes 14

seconds W., NAD 27:

Ap—0 to 11 inches; very dark grayish brown (10YR

3/2) silt loam, dark grayish brown (10YR 4/2) dry;

weak medium granular structure; friable; few fine

roots throughout; neutral; clear smooth boundary.

A1—11 to 19 inches; black (10YR 2/1) silt loam, very

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

structure; friable; few fine roots throughout; neutral;

gradual smooth boundary.

A2—19 to 28 inches; very dark grayish brown (10YR

3/2) silt loam, dark grayish brown (10YR 4/2) dry;

moderate medium granular structure; friable; few

fine roots throughout; neutral; gradual smooth

boundary.

C1—28 to 50 inches; dark grayish brown (10YR 4/2)

silt loam; weak medium subangular blocky

structure; friable; few fine roots throughout;

common faint very dark grayish brown (10YR 3/2)

organic coatings on faces of peds; very dark

grayish brown (10YR 3/2) krotovina; few fine faint

brown (10YR 4/3) and common fine distinct

yellowish brown (10YR 5/6) iron masses in the

matrix; neutral; gradual smooth boundary.

C2—50 to 60 inches; grayish brown (2.5Y 5/2) silt

loam; weak medium subangular blocky structure;

friable; few fine roots; very dark grayish brown

(10YR 3/2) krotovina; common fine prominent dark

grayish brown (10YR 4/2) iron depletions and

common fine prominent yellowish brown (10YR

5/6) iron masses in the matrix; neutral.

Range in Characteristics

Thickness of the mollic epipedon: 24 to 36 inches

Ap or A horizon:

Hue—10YR

Value—2 or 3

Chroma—1 or 2

Texture—silt loam

C horizon:

Hue—10YR or 2.5Y

Value—3 to 6
72 Soil Survey of

Chroma—1 to 3

Texture—silt loam

3451A—Lawson silt loam, 0 to 2 percent

slopes, frequently flooded

Setting

Landform: Flood plains

Composition

Lawson and similar soils: 91 percent

Dissimilar soils: 9 percent

Minor Components

Similar soils:

• Soils that have more sand throughout

• Soils that have a buried surface layer within a depth

of 60 inches

Dissimilar soils:

• The well drained Raddle soils on low terrace

footslopes

• The poorly drained Sawmill soils in swales

Properties and Qualities of the Lawson Soil

Parent material: Alluvium

Drainage class: Somewhat poorly drained

Slowest permeability within a depth of 40 inches:

Moderate

Permeability below a depth of 60 inches: Moderate

Depth to restrictive feature: More than 80 inches

Available water capacity to a depth of 60 inches: About

12.1 inches

Content of organic matter in the surface layer: 2 to 4

percent

Shrink-swell potential: Moderate

Depth and months of the highest apparent seasonal

high water table: 1 foot, January to May

Frequency and most likely period of flooding:

Frequent, November to June

Potential for frost action: High

Hazard of corrosion: Moderate for steel and low for

concrete

Surface runoff class: Negligible

Susceptibility to water erosion: Slight

Susceptibility to wind erosion: Slight

Interpretive Groups

Land capability classification: 3w

Prime farmland status: Prime farmland where

protected from flooding or not frequently flooded

during the growing season

Hydric soil status: Not hydric

7451A—Lawson silt loam, 0 to 2 percent

slopes, rarely flooded

Setting

Landform: Flood plains

Composition

Lawson and similar soils: 92 percent

Dissimilar soils: 8 percent

Minor Components

Similar soils:

• Soils that have more sand throughout

• Soils that have a buried surface layer within a depth

of 60 inches

Dissimilar soils:

• The poorly drained Millington and Sawmill soils in

the lower positions on flood plains

Properties and Qualities of the Lawson Soil

Parent material: Alluvium

Drainage class: Somewhat poorly drained

Slowest permeability within a depth of 40 inches:

Moderate

Permeability below a depth of 60 inches: Moderate

Depth to restrictive feature: More than 80 inches

Available water capacity to a depth of 60 inches: About

12.1 inches

Content of organic matter in the surface layer: 3 to 7

percent

Shrink-swell potential: Moderate

Depth and months of the highest apparent seasonal

high water table: 1 foot, January to May

Frequency and most likely period of flooding: Rare,

November to June

Potential for frost action: High

Hazard of corrosion: Moderate for steel and low for

concrete

Surface runoff class: Low

Susceptibility to water erosion: Slight

Susceptibility to wind erosion: Slight

Interpretive Groups

Land capability classification: 2w

Prime farmland status: Prime farmland

Hydric soil status: Not hydric

Marseilles Series

Taxonomic classification: Fine-silty, mixed, active,

mesic Typic Hapludalfs
Rock Island County, Illinois 73

Typical Pedon (Official Series Description)

Marseilles silt loam, 35 to 60 percent slopes, at an

elevation of 685 feet; 1,400 feet south and 1,150 feet

east of the northwest corner of sec. 14, T. 2 S., R. 6

W.; in Bureau County, Illinois; USGS Liberty

topographic quadrangle; lat. 39 degrees 53 minutes 57

seconds N. and long. 91 degrees 03 minutes 53

seconds W., NAD 27:

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

silt loam, grayish brown (10YR 5/2) dry; moderate

very fine granular structure; friable; strongly acid;

abrupt smooth boundary.

E—3 to 7 inches; brown (10YR 5/3) silt loam, very

pale brown (10YR 7/3) dry; moderate thin platy

and moderate very fine granular structure; friable;

very few faint dark grayish brown (10YR 4/2)

organic coatings in root channels and/or pores;

strongly acid; clear smooth boundary.

BE—7 to 10 inches; yellowish brown (10YR 5/4) silt

loam; weak medium platy and moderate very fine

and fine subangular blocky structure; friable; very

few faint dark grayish brown (10YR 4/2) organic

coatings in root channels and/or pores; strongly

acid; clear smooth boundary.

2Bt1—10 to 17 inches; yellowish brown (10YR 5/4)

silty clay loam; moderate fine and medium

subangular blocky structure; firm; very few faint

dark grayish brown (10YR 4/2) organic coatings in

root channels and/or pores and few distinct brown

(10YR 5/3) clay films on faces of peds; 1 percent

gravel; very strongly acid; clear smooth boundary.

2Bt2—17 to 22 inches; yellowish brown (10YR 5/4)

silty clay loam; strong medium subangular blocky

structure; firm; common distinct brown (10YR 5/3)

clay films and very few faint very pale brown

(10YR 7/3) silt coatings on faces of peds; 1 percent

gravel; very strongly acid; clear smooth boundary.

2Bt3—22 to 35 inches; light olive brown (2.5Y 5/4) silty

clay loam; moderate medium and coarse

subangular blocky structure; firm; very few faint

brown (10YR 5/3) clay films and very few distinct

very pale brown (10YR 7/3) silt coatings on faces

of peds; 1 percent gravel; very strongly acid;

gradual smooth boundary.

2Cr—35 to 60 inches; 70 percent light olive brown

(2.5Y 5/4) and 30 percent olive (5Y 5/3) silty clay

and unweathered bedrock; massive; firm; 10

percent shale gravel; very strongly acid.

Range in Characteristics

Depth to the base of the argillic horizon: 20 to 40

inches

Depth to paralithic contact: 20 to 40 inches

Ap or A horizon:

Hue—10YR

Value—2 to 5

Chroma—2 or 3

Texture—silt loam or silty clay loam

E or BE horizon:

Hue—10YR

Value—4 or 5

Chroma—2 to 4

Texture—silt loam

Bt horizon:

Hue—10YR

Value—4 or 5

Chroma—3 to 6

Texture—silt loam or silty clay loam

2Bt horizon:

Hue—7.5YR to 2.5Y

Value—4 to 6

Chroma—2 to 4

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

silty clay

2Cr horizon:

Hue—10YR, 2.5Y, 5Y, or N

Value—4 to 6

Chroma—0 to 4

913D2—Marseilles-Hickory silt loams, 10

to 18 percent slopes, eroded

Setting

Landform: Ground moraines

Position on the landform: Marseilles—lower part of

backslopes; Hickory—upper part of

backslopes

Composition

Marseilles and similar soils: 50 percent

Hickory and similar soils: 40 percent

Dissimilar components: 10 percent

Minor Components

Similar soils:

• Soils that have more clay in the subsoil

• Soils that formed in calcareous shale

Dissimilar components:

• The somewhat poorly drained Atlas soils on

backslopes

• The somewhat poorly drained Orion and Radford

soils on footslopes

• Areas of rock outcrop on the lower backslopes
74 Soil Survey of

Properties and Qualities of the Marseilles Soil

Parent material: Loess over residuum derived from

shale

Drainage class: Well drained

Slowest permeability within a depth of 40 inches: Very

slow

Permeability below a depth of 60 inches: Very slow

Depth to restrictive feature: 20 to 40 inches to bedrock

(paralithic)

Available water capacity to a depth of 60 inches: About

6 inches

Content of organic matter in the surface layer: 1 to 3

percent

Shrink-swell potential: High

Flooding: None

Accelerated erosion: The surface layer has been

thinned by erosion.

Potential for frost action: High

Hazard of corrosion: High for steel and moderate for

concrete

Surface runoff class: Very high

Susceptibility to water erosion: High

Susceptibility to wind erosion: Slight

Properties and Qualities of the Hickory Soil

Parent material: Till

Drainage class: Well drained

Slowest permeability within a depth of 40 inches:

Moderate

Permeability below a depth of 60 inches: Moderate

Depth to restrictive feature: More than 80 inches

Available water capacity to a depth of 60 inches: About

10.2 inches

Content of organic matter in the surface layer: 1 to 2

percent

Shrink-swell potential: Moderate

Flooding: None

Accelerated erosion: The surface layer has been

thinned by erosion.

Potential for frost action: Moderate

Hazard of corrosion: Moderate for steel and moderate

for concrete

Surface runoff class: Medium

Susceptibility to water erosion: High

Susceptibility to wind erosion: Slight

Interpretive Groups

Land capability classification: Marseilles—4e;

Hickory—3e

Prime farmland status: Not prime farmland

Hydric soil status: Marseilles—not hydric; Hickory—not

hydric

913F—Marseilles-Hickory silt loams, 18 to

35 percent slopes

Setting

Landform: Ground moraines

Position on the landform: Marseilles—lower part of

backslopes; Hickory—upper part of backslopes

Composition

Marseilles and similar soils: 41 percent

Hickory and similar soils: 39 percent

Dissimilar soils: 20 percent

Minor Components

Similar soils:

• Soils that have more clay in the subsoil

• Soils that formed in calcareous shale

Dissimilar soils:

• The somewhat poorly drained Atlas soils on

backslopes

• The somewhat poorly drained Orion and Radford

soils on footslopes

Properties and Qualities of the Marseilles Soil

Parent material: Thin layer of loess over residuum

derived from shale

Drainage class: Well drained

Slowest permeability within a depth of 40 inches: Very

slow

Permeability below a depth of 60 inches: Very slow

Depth to restrictive feature: 20 to 40 inches to bedrock

(paralithic)

Available water capacity to a depth of 60 inches: About

6.3 inches

Content of organic matter in the surface layer: 1 to 3

percent

Shrink-swell potential: Moderate

Flooding: None

Accelerated erosion: None or slight

Potential for frost action: High

Hazard of corrosion: High for steel and moderate for

concrete

Surface runoff class: High

Susceptibility to water erosion: High

Susceptibility to wind erosion: Slight

Properties and Qualities of the Hickory Soil

Parent material: Loamy till

Drainage class: Well drained

Slowest permeability within a depth of 40 inches:

Moderate
Rock Island County, Illinois 75

Permeability below a depth of 60 inches: Moderate

Depth to restrictive feature: More than 80 inches

Available water capacity to a depth of 60 inches: About

10.4 inches

Content of organic matter in the surface layer: 1 to 2

percent

Shrink-swell potential: Moderate

Flooding: None

Accelerated erosion: None or slight

Potential for frost action: Moderate

Hazard of corrosion: Moderate for steel and moderate

for concrete

Surface runoff class: High

Susceptibility to water erosion: High

Susceptibility to wind erosion: Slight

Interpretive Groups

Land capability classification: Marseilles—7e;

Hickory—6e

Prime farmland status: Not prime farmland

Hydric soil status: Marseilles—not hydric; Hickory—not

hydric

913G—Marseilles-Hickory silt loams, 35

to 60 percent slopes

Setting

Landform: Ground moraines

Position on the landform: Marseilles—lower part of

backslopes; Hickory—upper part of backslopes

Composition

Marseilles and similar soils: 50 percent

Hickory and similar soils: 40 percent

Dissimilar soils: 10 percent

Minor Components

Similar soils:

• Soils that have more clay in the subsoil

• Soils that formed in calcareous shale

Dissimilar soils:

• The somewhat poorly drained Orion and Radford

soils on footslopes

Properties and Qualities of the Marseilles Soil

Parent material: Loess over residuum derived from

shale

Drainage class: Well drained

Slowest permeability within a depth of 40 inches: Very

slow

Permeability below a depth of 60 inches: Very slow

Depth to restrictive feature: 20 to 40 inches to bedrock

(paralithic)

Available water capacity to a depth of 60 inches: About

6 inches

Content of organic matter in the surface layer: 1 to 3

percent

Shrink-swell potential: Moderate

Flooding: None

Accelerated erosion: None or slight

Potential for frost action: High

Hazard of corrosion: High for steel and moderate for

concrete

Surface runoff class: High

Susceptibility to water erosion: High

Susceptibility to wind erosion: Slight

Properties and Qualities of the Hickory Soil

Parent material: Till

Drainage class: Well drained

Slowest permeability within a depth of 40 inches:

Moderate

Permeability below a depth of 60 inches: Moderate

Depth to restrictive feature: More than 80 inches

Available water capacity to a depth of 60 inches: About

10.5 inches

Content of organic matter in the surface layer: 1 to 2

percent

Shrink-swell potential: Moderate

Flooding: None

Accelerated erosion: None or slight

Potential for frost action: Moderate

Hazard of corrosion: Moderate for steel and moderate

for concrete

Surface runoff class: High

Susceptibility to water erosion: High

Susceptibility to wind erosion: Slight

Interpretive Groups

Land capability classification: Marseilles—7e;

Hickory—7e

Prime farmland status: Not prime farmland

Hydric soil status: Marseilles—not hydric; Hickory—not

hydric

Martinsville Series

Taxonomic classification: Fine-loamy, mixed, active,

mesic Typic Hapludalfs

Typical Pedon (Official Series Description)

Martinsville silt loam, 2 to 5 percent slopes, at an

elevation of 705 feet; 200 feet north and 2,440 feet

west of the center of sec. 36, T. 21 N., R. 7 E.; in

Champaign County, Illinois; USGS Rising topographic

quadrangle; lat. 40 degrees 13 minutes 53 seconds N.
76 Soil Survey of

and long. 88 degrees 21 minutes 52 seconds W., NAD

27:

Ap—0 to 6 inches; mixed dark grayish brown (10YR

4/2) and yellowish brown (10YR 5/4) silt loam,

pale brown (10YR 6/3) dry; moderate fine and

medium granular structure; friable; slightly acid;

abrupt smooth boundary.

E—6 to 9 inches; brown (10YR 4/3) silt loam, light

yellowish brown (10YR 6/4) dry; weak medium

platy structure parting to moderate medium

subangular blocky; friable; light gray (10YR 7/1) silt

coatings on faces of peds; few thin dark grayish

brown (10YR 4/2) films on faces of peds; neutral;

abrupt smooth boundary.

Bt1—9 to 18 inches; yellowish brown (10YR 5/4) silty

clay loam; moderate fine and medium subangular

blocky structure; friable; many thin brown (10YR

4/3) clay films on faces of peds; common fine

accumulations of iron and manganese; slightly

acid; clear smooth boundary.

2Bt2—18 to 33 inches; dark yellowish brown (10YR

4/4) clay loam; moderate medium subangular

blocky structure; friable; common thin brown

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

thin accumulations of iron and manganese; slightly

acid; clear smooth boundary.

2Bt3—33 to 42 inches; dark yellowish brown (10YR

4/4) sandy loam; weak coarse prismatic structure

parting to weak medium subangular blocky;

friable; few thin brown (10YR 4/3) clay films on

faces of peds; moderately acid; clear smooth

boundary.

2BC—42 to 48 inches; yellowish brown (10YR 5/4),

stratified silt loam and loam; weak coarse

prismatic structure; friable; very few thin brown

(10YR 4/3) clay films lining pores; moderately acid;

clear smooth boundary.

2C—48 to 72 inches; mottled yellowish brown (10YR

5/4) and dark grayish brown (10YR 4/2), stratified

silt loam, loam, and sandy loam; massive; friable;

slightly acid.

Range in Characteristics

Depth to the base of the argillic horizon: 40 to 70

inches

Thickness of the solum: Less than 80 inches

Ap or A horizon:

Hue—10YR

Value—3 to 5

Chroma—2 to 6

Texture—loam, silt loam, fine sandy loam, or

sandy loam

Bt, 2Bt, BC, and/or 2BC horizon:

Hue—7.5YR or 10YR

Value—3 to 6

Chroma—3 to 6

Texture—clay loam, loam, sandy clay loam, silty

clay loam, or silt loam in the upper part; clay

loam, loam, sandy clay loam, silty clay loam, silt

loam, sandy loam, fine sandy loam, or very fine

sandy loam in the lower part; stratified in some

pedons

C or 2C horizon:

Hue—10YR

Value—3 to 6

Chroma—3 to 6

Texture—stratified; dominantly fine sandy loam,

sandy loam, loam, or silt loam

570B—Martinsville silt loam, 2 to 5

percent slopes

Setting

Landform: Outwash plains

Position on the landform: Shoulders

Composition

Martinsville and similar soils: 90 percent

Dissimilar soils: 10 percent

Minor Components

Similar soils:

• Soils that have less silt and more sand in the upper

part

• Soils that have less sand and more silt in the

subsoil

Dissimilar soils:

• The somewhat poorly drained Coffeen and Orion

soils on footslopes

• The well drained Raddle soils on shoulders

Properties and Qualities of the

Martinsville Soil

Parent material: Outwash

Drainage class: Well drained

Slowest permeability within a depth of 40 inches:

Moderate

Permeability below a depth of 60 inches: Moderate

Depth to restrictive feature: More than 80 inches

Available water capacity to a depth of 60 inches: About

9.7 inches

Content of organic matter in the surface layer: 1 to 3

percent
Rock Island County, Illinois 77

Shrink-swell potential: Moderate

Flooding: None

Accelerated erosion: None or slight

Potential for frost action: Moderate

Hazard of corrosion: Moderate for steel and moderate

for concrete

Surface runoff class: Low

Susceptibility to water erosion: Moderate

Susceptibility to wind erosion: Slight

Interpretive Groups

Land capability classification: 2e

Prime farmland status: Prime farmland

Hydric soil status: Not hydric

570C3—Martinsville clay loam, 5 to 10

percent slopes, severely eroded

Setting

Landform: Outwash plains

Position on the landform: Backslopes

Composition

Martinsville and similar soils: 90 percent

Dissimilar soils: 10 percent

Minor Components

Similar soils:

• Soils that have less silt and more sand in the upper

part

• Soils that have less sand and more silt in the subsoil

Dissimilar soils:

• The somewhat poorly drained Coffeen and Orion

soils on footslopes

• The well drained Raddle soils on shoulders

Properties and Qualities of the

Martinsville Soil

Parent material: Outwash

Drainage class: Well drained

Slowest permeability within a depth of 40 inches:

Moderate

Permeability below a depth of 60 inches: Moderate

Depth to restrictive feature: More than 80 inches

Available water capacity to a depth of 60 inches: About

9.7 inches

Content of organic matter in the surface layer: 0.5 to

1.0 percent

Shrink-swell potential: Moderate

Flooding: None

Accelerated erosion: The surface layer is mostly

subsoil material.

Potential for frost action: Moderate

Hazard of corrosion: Moderate for steel and moderate

for concrete

Surface runoff class: Medium

Susceptibility to water erosion: Moderate

Susceptibility to wind erosion: Slight

Interpretive Groups

Land capability classification: 4e

Prime farmland status: Not prime farmland

Hydric soil status: Not hydric

570D3—Martinsville clay loam, 10 to 18

percent slopes, severely eroded

Setting

Landform: Outwash plains

Position on the landform: Backslopes

Composition

Martinsville and similar soils: 90 percent

Dissimilar soils: 10 percent

Minor Components

Similar soils:

• Soils that have less silt and more sand in the upper

part

• Soils that have less sand and more silt in the subsoil

Dissimilar soils:

• The somewhat poorly drained Coffeen and Orion

soils on footslopes

• The well drained Raddle soils on shoulders

Properties and Qualities of the

Martinsville Soil

Parent material: Outwash

Drainage class: Well drained

Slowest permeability within a depth of 40 inches:

Moderate

Permeability below a depth of 60 inches: Moderate

Depth to restrictive feature: More than 80 inches

Available water capacity to a depth of 60 inches: About

9.7 inches

Content of organic matter in the surface layer: 0.5 to

1.0 percent

Shrink-swell potential: Moderate

Flooding: None

Accelerated erosion: The surface layer is mostly

subsoil material.

Potential for frost action: Moderate

Hazard of corrosion: Moderate for steel and moderate

for concrete
78 Soil Survey of

Surface runoff class: Medium

Susceptibility to water erosion: High

Susceptibility to wind erosion: Slight

Interpretive Groups

Land capability classification: 4e

Prime farmland status: Not prime farmland

Hydric soil status: Not hydric

Millington Series

Taxonomic classification: Fine-loamy, mixed,

superactive, calcareous, mesic Cumulic

Endoaquolls

Typical Pedon

Millington silt loam, undrained, 0 to 2 percent slopes,

frequently flooded; 700 feet south and 940 feet west of

the northeast corner of sec. 25, T. 20 N., R. 4 E.; in

Whiteside County, Illinois; USGS Prophetstown

topographic quadrangle; lat. 41 degrees 41 minutes 50

seconds N. and 89 degrees 58 minutes 54 seconds

W., NAD 27:

A—0 to 19 inches; black (10YR 2/1) silt loam, very

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

subangular blocky structure; friable; few snail-shell

fragments; slightly effervescent; slightly alkaline;

clear smooth boundary.

Bg—19 to 35 inches; black (10YR 2/1) loam, very dark

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

blocky structure; friable; few snail-shell fragments;

strongly effervescent; slightly alkaline; clear

smooth boundary.

Cg—35 to 60 inches; olive gray (5Y 5/2) loam that has

few thin strata of sandy loam; massive; friable;

common medium prominent strong brown (7.5YR

5/8) iron masses and common medium faint dark

gray (5Y 4/1) iron depletions in the matrix; few

snail-shell fragments; strongly effervescent;

slightly alkaline.

Range in Characteristics

Thickness of the mollic epipedon: 24 to 40 inches

Thickness of the solum: 24 to 48 inches

Ap or A horizon:

Hue—10YR or N

Value—2 or 3

Chroma—0 to 2

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

loam

Bg horizon:

Hue—10YR, 2.5Y, 5Y, or N

Value—2 to 5

Chroma—0 to 2

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

loam; strata of sandy loam and/or gravel in

some pedons

Cg horizon:

Chroma—0 to 2

Texture—stratified, calcareous sandy loam to silty

clay loam

1082A—Millington silt loam, undrained, 0

to 2 percent slopes, frequently flooded

Setting

Landform: Flood plains

Composition

Millington and similar soils: 95 percent

Dissimilar soils: 5 percent

Minor Components

Similar soils:

• Soils that contain more sand in the subsoil

• Soils that are not calcareous

• Soils that consist of marshy organic material

Dissimilar soils:

• The poorly drained Sawmill soils on toeslopes

Properties and Qualities of the Millington Soil

Parent material: Alluvium

Drainage class: Poorly drained

Slowest permeability within a depth of 40 inches:

Moderate

Permeability below a depth of 60 inches: Moderate

Depth to restrictive feature: More than 80 inches

Available water capacity to a depth of 60 inches: About

11.4 inches

Content of organic matter in the surface layer: 4 to 6

percent

Shrink-swell potential: Moderate

Depth and months of the highest apparent seasonal

high water table: At the surface, November to

June

Ponding depth: 0.2 foot during wet periods

Frequency and most likely period of flooding:

Frequent, November to June

Potential for frost action: High

Hazard of corrosion: High for steel and low for

concrete

Surface runoff class: Negligible

Susceptibility to water erosion: Slight

Susceptibility to wind erosion: Slight
Rock Island County, Illinois 79

Interpretive Groups

Land capability classification: 5w

Prime farmland status: Not prime farmland

Hydric soil status: Hydric

3082A—Millington silt loam, 0 to 2

percent slopes, frequently flooded

Setting

Landform: Flood plains

Composition

Millington and similar soils: 97 percent

Dissimilar soils: 3 percent

Minor Components

Similar soils:

• Soils that contain more sand in the subsoil

• Soils that are not calcareous

• Soils that consist of marshy organic material

Dissimilar soils:

• The poorly drained Sawmill soils on toeslopes

• Well drained soils on footslopes

Properties and Qualities of the Millington Soil

Parent material: Alluvium

Drainage class: Poorly drained

Slowest permeability within a depth of 40 inches:

Moderate

Permeability below a depth of 60 inches: Moderate

Depth to restrictive feature: More than 80 inches

Available water capacity to a depth of 60 inches: About

11.4 inches

Content of organic matter in the surface layer: 4 to 6

percent

Shrink-swell potential: Moderate

Depth and months of the highest apparent seasonal

high water table: At the surface, January to May

Frequency and most likely period of flooding:

Frequent, November to June

Potential for frost action: High

Hazard of corrosion: High for steel and low for

concrete

Surface runoff class: Negligible

Susceptibility to water erosion: Slight

Susceptibility to wind erosion: Slight

Interpretive Groups

Land capability classification: 3w

Prime farmland status: Prime farmland where drained

and either protected from flooding or not

frequently flooded during the growing season

Hydric soil status: Hydric

Millsdale Series

Taxonomic classification: Fine, mixed, active, mesic

Typic Argiaquolls

Typical Pedon

Millsdale silty clay loam, 0 to 2 percent slopes; 1,095

feet west and 1,760 feet south of the northeast corner

of sec. 30, T. 19 N., R. 3 E.; in Rock Island County,

Illinois; USGS Hillsdale topographic quadrangle; lat. 41

degrees 36 minutes 32 seconds N. and long. 90

degrees 11 minutes 41 seconds W., NAD 27:

Ap—0 to 8 inches; black (2.5Y 2.5/1) silty clay loam;

moderate very fine and fine granular structure;

friable; slightly alkaline; abrupt smooth boundary.

A—8 to 15 inches; black (2.5Y 2.5/1) silty clay loam;

moderate fine and medium granular structure;

friable; slightly alkaline; clear smooth boundary.

BA—15 to 23 inches; black (2.5Y 2.5/1) silty clay;

moderate fine and medium subangular blocky

structure; firm; discontinuous very dark gray (N

3/0) organic stains on faces of peds; slightly

alkaline; clear smooth boundary.

Btg—23 to 27 inches; dark gray (10YR 4/1) silty clay

loam; moderate fine and medium subangular

blocky structure; firm; common fine distinct

yellowish brown (10YR 5/4) redoximorphic

features; slightly alkaline; abrupt smooth boundary.

2R—27 to 60 inches; white (10YR 8/1) limestone;

strongly effervescent; moderately alkaline.

Range in Characteristics

Thickness of the mollic epipedon: 10 to 23 inches

Depth to lithic contact: 20 to 40 inches

Thickness of the solum: 20 to 40 inches

Ap, A, and/or BA horizon:

Hue—10YR, 2.5Y, or N

Value—2 or 3

Chroma—0 to 2

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

loam

Btg or Bt horizon:

Hue—10YR, 2.5Y, 5Y, or N

Value—3 to 6

Chroma—0 to 2 (upper part); 0 to 4 (lower part)

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

clay
80 Soil Survey of

2Btg, 2Bt, 2BCg, and/or 2BC horizon:

Hue—10YR, 2.5Y, or 5Y

Value—4 to 7

Chroma—1 to 4

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

clay

2C or 2Cg horizon:

Hue—10YR, 2.5Y, or 5Y

Value—4 to 7

Chroma—1 to 4

Texture—loam or clay loam

317A—Millsdale silty clay loam, 0 to 2

percent slopes

Setting

Landform: Lake plains

Composition

Millsdale and similar soils: 100 percent

Minor Components

Similar soils:

• Soils that contain less clay in the subsoil

• Soils that are calcareous

• Soils that have bedrock at a depth of less than 20

inches or more than 40 inches

Properties and Qualities of the Millsdale Soil

Parent material: Lacustrine deposits

Drainage class: Very poorly drained

Slowest permeability within a depth of 40 inches: Slow

Permeability below a depth of 60 inches: Slow or

moderately slow

Depth to restrictive feature: 20 to 40 inches to bedrock

(lithic)

Available water capacity to a depth of 60 inches: About

4.3 inches

Content of organic matter in the surface layer: 4 to 7

percent

Shrink-swell potential: High

Depth and months of the highest apparent seasonal

high water table: At the surface, January to

June

Ponding depth: 0.5 foot during wet periods

Flooding: None

Accelerated erosion: None or slight

Potential for frost action: High

Hazard of corrosion: High for steel and low for

concrete

Surface runoff class: Medium

Susceptibility to water erosion: Slight

Susceptibility to wind erosion: Very slight

Interpretive Groups

Land capability classification: 3w

Prime farmland status: Prime farmland where drained

Hydric soil status: Hydric

M-W—Miscellaneous water

General Definition

• This map unit consists of manmade areas that are

used for industrial, sanitary, or mining applications and

that contain water most of the year.

Moline Series

Taxonomic classification: Fine, smectitic, mesic Vertic

Endoaquolls

Typical Pedon (Official Series Description)

Moline silty clay, 0 to 2 percent slopes, at an elevation

of 577 feet; 60 feet north and 2,600 feet west of the

southeast corner of sec. 16, T. 17 N., R. 1 E.; in Henry

County, Illinois; USGS Coal Valley topographic

quadrangle; lat. 41 degrees 27 minutes 30 seconds N.

and long. 90 degrees 23 minutes 00 seconds W., NAD

27:

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

gray (10YR 4/1) dry; moderate medium

subangular blocky structure; firm; neutral; clear

smooth boundary.

A—7 to 14 inches; black (2.5Y 2.5/1) silty clay, very

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

subangular blocky structure; firm; neutral; clear

wavy boundary.

Bg1—14 to 24 inches; dark gray (5Y 4/1) clay; strong

medium and coarse subangular blocky structure;

very firm; common medium black (2.5Y 2.5/1)

organic coatings on faces of peds; few medium

prominent strong brown (7.5YR 5/6) masses of

iron; neutral; clear wavy boundary.

Bg2—24 to 33 inches; grayish brown (2.5Y 5/2) clay;

strong medium and coarse subangular blocky

structure; very firm; common medium distinct light

brownish gray (10YR 6/2) iron depletions;

common coarse prominent reddish brown (5YR

4/4) masses of iron; violently effervescent; slightly

alkaline; abrupt wavy boundary.

2B1—33 to 52 inches; reddish brown (5YR 4/4) clay;

strong medium and coarse subangular blocky

structure; very firm; common gray (10YR 6/1)

calcium carbonate concretions; many coarse

prominent grayish brown (2.5Y 5/2) iron
Rock Island County, Illinois 81

depletions; violently effervescent; moderately

alkaline; clear wavy boundary.

2B2—52 to 65 inches; reddish brown (5YR 4/4) clay;

strong medium and coarse subangular blocky

structure; very firm; many gray (10YR 6/1) calcium

carbonate concretions; moderately effervescent;

slightly alkaline; gradual wavy boundary.

2BC—65 to 75 inches; reddish brown (5YR 4/4) clay;

several thin (less than 1 cm) olive gray (5Y 5/2)

bands of silt loam in the lower part; weak coarse

subangular blocky structure; firm; moderately

effervescent; slightly alkaline; clear wavy

boundary.

3Cg—75 to 100 inches; light brownish gray (2.5Y 6/2)

silt loam; massive; friable; many coarse prominent

brownish yellow (10YR 6/8) masses of iron;

moderately effervescent; slightly alkaline.

Range in Characteristics

Thickness of the mollic epipedon: 10 to 20 inches

Depth to free carbonates: 20 to 50 inches

Thickness of the solum: 45 to 80 inches

Ap and A horizons:

Hue—10YR, 2.5Y, or N

Value—2 or 3

Chroma—0 to 2

Texture—silty clay or silty clay loam

Reaction—slightly acid to slightly alkaline

Bg horizon:

Hue—5Y or 2.5Y

Value—3 to 5

Chroma—1 or 2

Texture—clay or silty clay

Reaction—slightly acid to slightly alkaline

2B and 2BC horizons:

Hue—2.5YR or 5YR

Value—3 to 5

Chroma—2 to 6

Texture—clay or silty clay; strata of silt, silt loam,

and silty clay loam in some pedons

Reaction—neutral to strongly alkaline

3C horizon (if it occurs):

Hue—10YR, 2.5Y, or 5Y

Value—3 to 6

Chroma—1 or 2

Texture—silt loam or silty clay loam; strata of finer

or coarser textures in some pedons below a

depth of 50 inches

Reaction—slightly alkaline to strongly alkaline

1654A—Moline silty clay, undrained, 0 to 2

percent slopes, frequently flooded

Setting

Landform: Flood plains

Composition

Moline and similar soils: 100 percent

Minor Components

Similar soils:

• Soils that have a surface layer less than 10 inches

thick

• Soils that are underlain by bedrock within a depth of

60 inches

• Soils that contain less clay throughout

Properties and Qualities of the Moline Soil

Parent material: Clayey alluvium

Drainage class: Poorly drained

Slowest permeability within a depth of 40 inches: Slow

Permeability below a depth of 60 inches: Slow

Depth to restrictive feature: More than 80 inches

Available water capacity to a depth of 60 inches: About

6.3 inches

Content of organic matter in the surface layer: 2 to 4

percent

Shrink-swell potential: Very high

Depth and months of the highest apparent seasonal

high water table: At the surface, November to

June

Ponding depth: 0.2 foot during wet periods

Frequency and most likely period of flooding:

Frequent, November to June

Potential for frost action: High

Hazard of corrosion: High for steel and low for concrete

Surface runoff class: Low

Susceptibility to water erosion: Slight

Susceptibility to wind erosion: Moderate

Interpretive Groups

Land capability classification: 5w

Prime farmland status: Not prime farmland

Hydric soil status: Hydric

7654A—Moline silty clay, 0 to 2 percent

slopes, rarely flooded

Setting

Landform: Flood plains
82 Soil Survey of

Composition

Moline and similar soils: 100 percent

Minor Components

Similar soils:

• Soils that have a surface layer less than 10 inches

thick

• Soils that are underlain by bedrock within a depth of

60 inches

• Soils that contain less clay throughout

Properties and Qualities of the Moline Soil

Parent material: Clayey lacustrine deposits over

stratified alluvium

Drainage class: Poorly drained

Slowest permeability within a depth of 40 inches: Slow

Permeability below a depth of 60 inches: Slow

Depth to restrictive feature: More than 80 inches

Available water capacity to a depth of 60 inches: About

6.3 inches

Content of organic matter in the surface layer: 2 to 4

percent

Shrink-swell potential: Very high

Depth and months of the highest apparent seasonal

high water table: At the surface, January to May

Ponding depth: 0.5 foot during wet periods

Frequency and most likely period of flooding: Rare,

November to June

Potential for frost action: High

Hazard of corrosion: High for steel and low for

concrete

Surface runoff class: Negligible

Susceptibility to water erosion: Slight

Susceptibility to wind erosion: Moderate

Interpretive Groups

Land capability classification: 3w

Prime farmland status: Prime farmland where drained

Hydric soil status: Hydric

Muscatune Series

Taxonomic classification: Fine-silty, mixed,

superactive, mesic Aquic Argiudolls

Typical Pedon

Muscatune silt loam, 0 to 2 percent slopes; 2,500 feet

west and 2,240 feet north of the southeast corner of

sec. 29, T. 9 N., R. 1 W.; in Warren County, Illinois;

USGS Greenbush topographic quadrangle; lat. 40

degrees 44 minutes 11 seconds N. and long. 90

degrees 31 minutes 46 seconds W., NAD 27:

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

grayish brown (10YR 4/2) dry; moderate fine

granular structure; very friable; common very fine

and fine roots throughout; neutral; abrupt smooth

boundary.

A—7 to 13 inches; very dark gray (10YR 3/1) silt loam,

dark grayish brown (10YR 4/2) dry; moderate fine

granular structure; very friable; common very fine

and fine roots throughout; neutral; clear smooth

boundary.

AB—13 to 20 inches; mixed very dark grayish brown

(10YR 3/2) and brown (10YR 4/3) silt loam, dark

grayish brown (10YR 4/2) dry; moderate fine

subangular blocky structure parting to weak fine

granular; friable; common very fine roots

throughout; few faint very dark gray (10YR 3/1)

organic coatings on faces of peds; few faint dark

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

peds; neutral; clear smooth boundary.

Bt1—20 to 28 inches; brown (10YR 4/3) silty clay

loam; moderate medium subangular blocky

structure; friable; few fine roots between peds; few

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

faces of peds; common faint very dark grayish

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

peds; common dark manganese stains; neutral;

clear smooth boundary.

Bt2—28 to 38 inches; brown (10YR 5/3) silty clay

loam; moderate medium subangular blocky

structure; friable; few fine roots between peds;

common distinct dark grayish brown (2.5Y 4/2)

clay films on faces of peds; few fine distinct

yellowish brown (10YR 5/6) and faint pale brown

(10YR 6/3) iron masses in the matrix; common

dark manganese stains; neutral; clear smooth

boundary.

Btg—38 to 50 inches; light brownish gray (2.5Y 6/2)

silty clay loam; moderate medium subangular

blocky structure; friable; few very fine roots

between peds; common prominent grayish brown

(10YR 5/2) clay films on faces of peds; common

fine prominent yellowish brown (10YR 5/6) and

dark yellowish brown (10YR 4/6) iron masses in

the matrix; common dark manganese stains;

slightly acid; clear smooth boundary.

BCg—50 to 60 inches; light brownish gray (2.5Y 6/2)

silt loam; weak medium subangular blocky

structure; friable; common medium prominent

yellowish brown (10YR 5/6) and dark yellowish

brown (10YR 4/6) iron masses in the matrix;

common dark manganese stains; slightly acid;

clear smooth boundary.

Cg—60 to 80 inches; light brownish gray (2.5Y 6/2) silt

loam; massive; friable; many medium prominent
Rock Island County, Illinois 83

yellowish brown (10YR 5/6) and dark yellowish

brown (10YR 4/6) iron masses in the matrix; few

fine round very dark brown (10YR 2/2) soft

masses of iron and manganese; neutral.

Range in Characteristics

Thickness of the mollic epipedon: 10 to 20 inches

Thickness of the loess: More than 60 inches

Depth to free carbonates: More than 40 inches

Thickness of the solum: 40 to 64 inches

Ap or A horizon:

Hue—10YR

Value—2 or 3

Chroma—1 or 2

Texture—silt loam or silty clay loam

Bt horizon:

Hue—10YR or 2.5Y

Value—4 to 6

Chroma—2 to 4

Texture—silty clay loam

C horizon:

Hue—10YR or 2.5Y

Value—5 or 6

Chroma—2 to 4

Texture—silt loam or silty clay loam

51A—Muscatune silt loam, 0 to 2 percent

slopes

Setting

Landform: Ground moraines

Position on the landform: Summits

Composition

Muscatune and similar soils: 95 percent

Dissimilar soils: 5 percent

Minor Components

Similar soils:

• Soils that have a surface layer less than 10 inches

thick; on slopes of 2 to 5 percent near the head of

drainageways

• Soils that have a seasonal high water table below a

depth of 2 feet

Dissimilar soils:

• The poorly drained Denny and Sable soils in

depressions

• The well drained Osco soils on shoulders

Properties and Qualities of the

Muscatune Soil

Parent material: Loess

Drainage class: Somewhat poorly drained

Slowest permeability within a depth of 40 inches:

Moderate

Permeability below a depth of 60 inches: Moderate

Depth to restrictive feature: More than 80 inches

Available water capacity to a depth of 60 inches: About

12.4 inches

Content of organic matter in the surface layer: 3.5 to

5.0 percent

Shrink-swell potential: Moderate

Depth and months of the highest apparent seasonal

high water table: 1 foot, January to May

Flooding: None

Accelerated erosion: None or slight

Potential for frost action: High

Hazard of corrosion: High for steel and moderate for

concrete

Surface runoff class: Low

Susceptibility to water erosion: Slight

Susceptibility to wind erosion: Slight

Interpretive Groups

Land capability classification: 1

Prime farmland status: Prime farmland

Hydric soil status: Not hydric

Niota Series

Taxonomic classification: Fine, mixed, superactive,

mesic Vertic Albaqualfs

Typical Pedon

Niota silt loam, 0 to 2 percent slopes; 600 feet north

and 1,320 feet east of the southwest corner of sec. 30,

T. 19 N., R. 3 E.; in Whiteside County, Illinois; USGS

Hillsdale topographic quadrangle; lat. 41 degrees 36

minutes 01 second N. and long. 90 degrees 12

minutes 17 seconds W., NAD 27:

A—0 to 7 inches; black (10YR 2/1) silt loam, gray

(10YR 5/1) dry; moderate very fine and fine

granular structure; friable; many fine roots

throughout; neutral; clear smooth boundary.

E—7 to 14 inches; mixed grayish brown (10YR 5/2)

and dark grayish brown (10YR 4/2) silt loam, light

brownish gray (10YR 6/2) dry; moderate thin platy

structure parting to moderate fine granular; friable;

common fine roots throughout; common distinct

light gray (10YR 7/1) (dry) clay depletions on

faces of peds; few fine dark concretions of iron

and manganese in the matrix; strongly acid;

abrupt smooth boundary.

2Bt—14 to 24 inches; reddish brown (5YR 4/4) silty

clay; moderate medium prismatic structure parting
84 Soil Survey of

to moderate medium subangular blocky; very firm;

few fine roots between peds; many distinct grayish

brown (2.5Y 5/2) clay films on faces of peds; very

strongly acid; clear smooth boundary.

2Btg1—24 to 37 inches; mixed gray (5Y 5/1) and light

gray (5Y 6/1) silty clay loam; moderate medium

prismatic structure parting to moderate medium

subangular blocky; firm; few fine roots between

peds; common distinct dark gray (5Y 4/1) clay

films on faces of peds; few fine dark concretions of

iron and manganese in the matrix; few fine and

medium prominent yellowish red (5Y 4/6) masses

of iron in the matrix; very strongly acid; gradual

smooth boundary.

3Btg2—37 to 53 inches; light gray (5Y 6/1) silt loam;

weak coarse prismatic structure parting to weak

medium subangular blocky; friable; common

distinct reddish gray (5YR 5/2) clay films on faces

of peds; many prominent black (7.5YR 2.5/1) iron

and manganese stains on faces of peds; many

fine dark concretions of iron and manganese in

the matrix; few fine and medium prominent

yellowish red (5Y 4/6) masses of iron in the matrix;

very strongly acid; clear smooth boundary.

3Cg—53 to 60 inches; light gray (5Y 6/1) silt loam;

massive; friable; many fine dark concretions of

iron and manganese in the matrix; many fine and

medium prominent yellowish red (5Y 4/6) masses

of iron in the matrix; slightly acid.

Range in Characteristics

Thickness of the solum: 40 to 60 inches

Thickness of the loess: Less than 20 inches

Depth to lacustrine sediments: 10 to 20 inches

Ap or A horizon:

Hue—10YR

Value—2 or 3

Chroma—1 or 2

Eg horizon:

Hue—10YR or 2.5Y

Value—4 to 6

Chroma—1 to 3

2Bt or 2Btg horizon:

Hue—2.5YR to 5Y or N

Value—4 to 6

Chroma—0 to 4

Texture—silty clay, clay, or silty clay loam

3Btg or 3BCg horizon (if it occurs):

Hue—7.5YR to 5Y or N

Value—4 to 6

Chroma—0 to 2

Texture—silt loam, silty clay loam, or loam

3Cg horizon:

Texture—silt loam; strata of loam, clay loam,

sandy loam, silty clay loam, or loamy fine sand

in some pedons

261A—Niota silt loam, 0 to 2 percent

slopes

Setting

Landform: Lake plains

Position on the landform: Summits

Composition

Niota and similar soils: 98 percent

Dissimilar soils: 2 percent

Minor Components

Similar soils:

• Soils that have a thicker surface layer

• Soils that have a seasonal high water table at a

depth of more than 1 foot

Dissimilar soils:

• The well drained Coyne soils on backslopes

• The well drained Joslin and Raddle soils on

summits

Properties and Qualities of the Niota Soil

Parent material: Glaciolacustrine deposits

Drainage class: Poorly drained

Slowest permeability within a depth of 40 inches: Very

slow

Permeability below a depth of 60 inches: Moderately

rapid

Depth to restrictive feature: More than 80 inches

Available water capacity to a depth of 60 inches: About

8.3 inches

Content of organic matter in the surface layer: 1 to 3

percent

Shrink-swell potential: High

Depth and months of the highest apparent seasonal

high water table: At the surface, January to June

Ponding depth: 0.2 foot during wet periods

Flooding: None

Accelerated erosion: None or slight

Potential for frost action: High

Hazard of corrosion: High for steel and high for

concrete

Surface runoff class: Negligible

Susceptibility to water erosion: Slight

Susceptibility to wind erosion: Slight

Interpretive Groups

Land capability classification: 2w
Rock Island County, Illinois 85

Prime farmland status: Prime farmland where drained

Hydric soil status: Hydric

Oakville Series

Taxonomic classification: Mixed, mesic Typic

Udipsamments

Typical Pedon

Oakville fine sand, 7 to 15 percent slopes; 716 feet

south and 1,056 feet east of the northwest corner of

sec. 18, T. 17 N., R. 6 E.; in Bureau County, Illinois;

USGS Mineral topographic quadrangle; lat. 41 degrees

27 minutes 54 seconds N. and long. 89 degrees 51

minutes 12 seconds W., NAD 27:

Ap—0 to 5 inches; brown (10YR 4/3) fine sand,

yellowish brown (10YR 5/4) dry; weak fine

granular structure; very friable; common fine roots

throughout; neutral; abrupt smooth boundary.

Bw—5 to 23 inches; strong brown (7.5YR 5/6) fine

sand; weak medium subangular blocky structure;

very friable; few fine roots throughout; neutral;

clear smooth boundary.

BC—23 to 36 inches; yellowish brown (10YR 5/6) fine

sand; very weak medium subangular blocky

structure; very friable; few fine roots throughout;

neutral; clear smooth boundary.

C—36 to 60 inches; yellowish brown (10YR 5/6) fine

sand; single grain; loose; neutral.

Range in Characteristics

Thickness of the solum: 22 to 40 inches

Ap or A horizon:

Hue—10YR

Value—3 or 4

Chroma—1 to 4

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

loamy sand

Bw horizon:

Hue—10YR or 7.5YR

Value—4 to 6

Chroma—3 or 4

Texture—fine sand, loamy sand, or sand

C horizon:

Hue—10YR

Value—4 to 7

Chroma—3 to 6

Texture—fine sand

741F—Oakville fine sand, 20 to 30 percent

slopes

Setting

Landform: Dunes

Position on the landform: Backslopes

Composition

Oakville and similar soils: 95 percent

Dissimilar soils: 5 percent

Minor Components

Similar soils:

• Soils that have a darker surface layer

• Soils that are calcareous within a depth of 60 inches

• Soils that contain more gravel in all or part of the

profile

Dissimilar soils:

• Poorly drained soils on toeslopes

• The well drained Tell soils on shoulders and summits

Properties and Qualities of the Oakville Soil

Parent material: Eolian sands

Drainage class: Excessively drained

Slowest permeability within a depth of 40 inches:

Rapid

Permeability below a depth of 60 inches: Rapid

Depth to restrictive feature: More than 80 inches

Available water capacity to a depth of 60 inches: About

4.1 inches

Content of organic matter in the surface layer: 0.5 to

2.0 percent

Shrink-swell potential: Low

Flooding: None

Accelerated erosion: None or slight

Potential for frost action: Low

Hazard of corrosion: Low for steel and moderate for

concrete

Surface runoff class: Low

Susceptibility to water erosion: Slight

Susceptibility to wind erosion: High

Interpretive Groups

Land capability classification: 7s

Prime farmland status: Not prime farmland

Hydric soil status: Not hydric

917C2—Oakville-Tell complex, 5 to 10

percent slopes, eroded

Setting

Landform: Outwash plains
86 Soil Survey of

Position on the landform: Oakville—summits and

shoulders; Tell—shoulders and backslopes

Composition

Oakville and similar soils: 50 percent

Tell and similar soils: 40 percent

Dissimilar soils: 10 percent

Minor Components

Similar soils:

• Soils that have a darker surface layer

• Soils that are calcareous within a depth of 60 inches

• Soils that contain more gravel in all or part of the

profile

• Soils that have more clay in the upper part

Dissimilar soils:

• The somewhat poorly drained Joy soils on

footslopes

Properties and Qualities of the Oakville Soil

Parent material: Eolian sands

Drainage class: Excessively drained

Slowest permeability within a depth of 40 inches:

Rapid

Permeability below a depth of 60 inches: Rapid

Depth to restrictive feature: More than 80 inches

Available water capacity to a depth of 60 inches: About

4.6 inches

Content of organic matter in the surface layer: 0.5 to

2.0 percent

Shrink-swell potential: Low

Flooding: None

Accelerated erosion: The surface layer has been

thinned by erosion.

Potential for frost action: Low

Hazard of corrosion: Low for steel and moderate for

concrete

Surface runoff class: Very low

Susceptibility to water erosion: Slight

Susceptibility to wind erosion: High

Properties and Qualities of the Tell Soil

Parent material: Loess over outwash

Drainage class: Well drained

Slowest permeability within a depth of 40 inches:

Moderate

Permeability below a depth of 60 inches: Rapid

Depth to restrictive feature: More than 80 inches

Available water capacity to a depth of 60 inches: About

7.4 inches

Content of organic matter in the surface layer: 1 to 3

percent

Shrink-swell potential: Moderate

Flooding: None

Accelerated erosion: The surface layer has been

thinned by erosion.

Potential for frost action: High

Hazard of corrosion: Moderate for steel and moderate

for concrete

Surface runoff class: Medium

Susceptibility to water erosion: High

Susceptibility to wind erosion: Slight

Interpretive Groups

Land capability classification: Oakville—6s; Tell—3e

Prime farmland status: Not prime farmland

Hydric soil status: Oakville—not hydric; Tell—not

hydric

917D2—Oakville-Tell complex, 10 to 18

percent slopes, eroded

Setting

Landform: Outwash plains

Position on the landform: Oakville—upper and middle

parts of backslopes; Tell—middle and lower parts

of backslopes

Composition

Oakville and similar soils: 50 percent

Tell and similar soils: 45 percent

Dissimilar soils: 5 percent

Minor Components

Similar soils:

• Soils that have a darker surface layer

• Soils that are calcareous within a depth of 60 inches

• Soils that contain more gravel in all or part of the

profile

• Soils that have more clay in the upper part

Dissimilar soils:

• The somewhat poorly drained Joy soils on

footslopes

• Poorly drained soils on toeslopes

Properties and Qualities of the Oakville Soil

Parent material: Eolian sands

Drainage class: Excessively drained

Slowest permeability within a depth of 40 inches:

Rapid

Permeability below a depth of 60 inches: Rapid

Depth to restrictive feature: More than 80 inches

Available water capacity to a depth of 60 inches: About

4.3 inches

Content of organic matter in the surface layer: 0.5 to

2.0 percent

Shrink-swell potential: Low
Rock Island County, Illinois 87

Flooding: None

Accelerated erosion: The surface layer has been

thinned by erosion.

Potential for frost action: Low

Hazard of corrosion: Low for steel and moderate for

concrete

Surface runoff class: Very low

Susceptibility to water erosion: Slight

Susceptibility to wind erosion: High

Properties and Qualities of the Tell Soil

Parent material: Loess over outwash

Drainage class: Well drained

Slowest permeability within a depth of 40 inches:

Moderate

Permeability below a depth of 60 inches: Rapid

Depth to restrictive feature: More than 80 inches

Available water capacity to a depth of 60 inches: About

8.1 inches

Content of organic matter in the surface layer: 1 to 3

percent

Shrink-swell potential: Moderate

Flooding: None

Accelerated erosion: The surface layer has been

thinned by erosion.

Potential for frost action: High

Hazard of corrosion: Moderate for steel and moderate

for concrete

Surface runoff class: Medium

Susceptibility to water erosion: High

Susceptibility to wind erosion: Slight

Interpretive Groups

Land capability classification: Oakville—6s; Tell—4e

Prime farmland status: Not prime farmland

Hydric soil status: Oakville—not hydric; Tell—not

hydric

Orion Series

Taxonomic classification: Coarse-silty, mixed,

superactive, nonacid, mesic Aquic Udifluvents

Typical Pedon

Orion silt loam, 0 to 2 percent slopes, frequently

flooded; 270 feet south and 1,000 feet east of the

northwest corner of sec. 17, T. 22 N., R. 6 E.; in

Whiteside County, Illinois; USGS Milledgeville

topographic quadrangle; 41 degrees 54 minutes 06

seconds N. and long. 89 degrees 50 minutes 13

seconds W., NAD 27:

A—0 to 5 inches; dark grayish brown (10YR 4/2) silt

loam, light brownish gray (10YR 6/2) dry; massive;

friable; many thin strata of brown (10YR 4/3) and

very dark gray (10YR 3/1) silt loam; neutral; abrupt

smooth boundary.

C1—5 to 15 inches; dark grayish brown (10YR 4/2) silt

loam; massive; friable; many thin strata of pale

brown (10YR 6/3) and yellowish brown (10YR 5/4)

silt loam; few fine prominent brown (7.5YR 4/4)

masses of iron in the matrix; neutral; clear wavy

boundary.

C2—15 to 29 inches; dark grayish brown (10YR 4/2)

silt loam; massive; friable; many thin strata of dark

yellowish brown (10YR 4/4), yellowish brown

(10YR 5/6), and pale brown (10YR 6/3) silt loam;

few very dark gray (10YR 3/1) wormcasts; few fine

prominent brown (7.5YR 4/4) masses of iron in the

matrix; neutral; abrupt wavy boundary.

Ab1—29 to 39 inches; black (2.5Y 2.5/1) silt loam;

weak thick platy structure parting to weak medium

and fine subangular blocky; friable; neutral; clear

smooth boundary.

Ab2—39 to 51 inches; black (2.5Y 2.5/1) silty clay

loam; strong medium and fine angular blocky

structure; friable; neutral; clear smooth boundary.

Ab3—51 to 60 inches; very dark gray (10YR 3/1) silty

clay loam; moderate medium and fine subangular

blocky structure; friable; neutral.

Range in Characteristics

Depth to the dark buried soil: 20 to 40 inches

Thickness of the surface layer: 5 to 10 inches

Ap or A horizon:

Hue—10YR

Value—3 to 6

Chroma—2 or 3

Texture—silt loam; stratified in some pedons

C horizon:

Hue—10YR

Value—3 to 5

Chroma—2 or 3

Texture—silt loam; stratified in some pedons

Ab horizon:

Hue—10YR or 2.5Y

Value—2 or 3

Chroma—1 or 2

Texture—silty clay loam or silt loam; stratified in

some pedons

3415A—Orion silt loam, 0 to 2 percent

slopes, frequently flooded

Setting

Landform: Flood plains
88 Soil Survey of

Composition

Orion and similar soils: 95 percent

Dissimilar soils: 5 percent

Minor Components

Similar soils:

• Soils that contain more sand in the lower part

• Soils that have a buried surface layer at a depth of

more than 40 inches

• Soils that have a seasonal high water table within a

depth of 1 foot

Dissimilar soils:

• The poorly drained Sawmill soils in the lower

positions on flood plains

Properties and Qualities of the Orion Soil

Parent material: Alluvium

Drainage class: Somewhat poorly drained

Slowest permeability within a depth of 40 inches:

Moderate

Permeability below a depth of 60 inches: Moderate

Depth to restrictive feature: More than 80 inches

Available water capacity to a depth of 60 inches: About

12.3 inches

Content of organic matter in the surface layer: 1 to 3

percent

Shrink-swell potential: Low

Depth and months of the highest apparent seasonal

high water table: 1 foot, January to May

Frequency and most likely period of flooding:

Frequent, November to June

Potential for frost action: High

Hazard of corrosion: High for steel and low for concrete

Surface runoff class: Low

Susceptibility to water erosion: Slight

Susceptibility to wind erosion: Slight

Interpretive Groups

Land capability classification: 3w

Prime farmland status: Prime farmland where

protected from flooding or not frequently flooded

during the growing season

Hydric soil status: Not hydric

7415A—Orion silt loam, 0 to 2 percent

slopes, rarely flooded

Setting

Landform: Flood plains

Composition

Orion and similar soils: 100 percent

Minor Components

Similar soils:

• Soils that contain more sand in the lower part

• Soils that have a buried surface layer at a depth of

more than 40 inches

• Soils that have a seasonal high water table within a

depth of 1 foot

Properties and Qualities of the Orion Soil

Parent material: Alluvium

Drainage class: Somewhat poorly drained

Slowest permeability within a depth of 40 inches:

Moderate

Permeability below a depth of 60 inches: Moderate

Depth to restrictive feature: More than 80 inches

Available water capacity to a depth of 60 inches: About

12.7 inches

Content of organic matter in the surface layer: 1 to 3

percent

Shrink-swell potential: Low

Depth and months of the highest apparent seasonal

high water table: 1 foot, January to May

Frequency and most likely period of flooding: Rare,

November to June

Accelerated erosion: None or slight

Potential for frost action: High

Hazard of corrosion: High for steel and low for

concrete

Surface runoff class: Low

Susceptibility to water erosion: Slight

Susceptibility to wind erosion: Slight

Interpretive Groups

Land capability classification: 2w

Prime farmland status: Prime farmland

Hydric soil status: Not hydric

802B—Orthents, loamy, undulating

Setting

Landform: Ground moraines

Composition

Orthents and similar soils: 85 percent

Dissimilar soils: 15 percent

Minor Components

Similar soils:

• Soils that typically have a surface layer of silt loam or

silty clay loam

• Soils that have a perched seasonal high water table

within a depth of 60 inches
Rock Island County, Illinois 89

Dissimilar soils:

• The somewhat poorly drained Muscatune soils on

summits

Properties and Qualities of the Orthents

Parent material: Mine spoil or earthy fill

Drainage class: Well drained

Slowest permeability within a depth of 40 inches:

Moderately slow

Permeability below a depth of 60 inches: Moderately

slow

Depth to restrictive feature: More than 80 inches

Available water capacity to a depth of 60 inches: About

10.9 inches

Content of organic matter in the surface layer: 0.5 to

2.0 percent

Shrink-swell potential: Moderate

Flooding: None

Accelerated erosion: None or slight

Potential for frost action: Moderate

Hazard of corrosion: Moderate for steel and moderate

for concrete

Surface runoff class: Medium

Susceptibility to water erosion: Moderate

Susceptibility to wind erosion: Slight

Interpretive Groups

Land capability classification: 2e

Prime farmland status: Not prime farmland

Hydric soil status: Not hydric

Osco Series

Taxonomic classification: Fine-silty, mixed,

superactive, mesic Typic Argiudolls

Taxadjunct features: The Osco soil in map unit 86C2

has a thinner dark surface layer than is defined as

the range for the series. This soil is classified as a

Mollic Hapludalf.

Typical Pedon (Official Series Description)

Osco silt loam, 2 to 5 percent slopes, at an elevation

of 858 feet; 316 feet north and 88 feet west of the

southeast corner of sec. 23, T. 24 N., R. 6 E.; in Carroll

County, Illinois; USGS Lanark topographic quadrangle;

lat. 42 degrees 03 minutes 15 seconds N. and long. 89

degrees 45 minutes 52 seconds W., NAD 27:

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

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

moderate fine granular structure; friable; common

fine roots; slightly acid; abrupt smooth boundary.

A—10 to 14 inches; very dark grayish brown (10YR

3/2) silt loam, dark grayish brown (10YR 4/2) dry;

moderate medium and coarse granular structure;

friable; common fine roots; strongly acid; clear

smooth boundary.

BA—14 to 20 inches; dark yellowish brown (10YR 3/4)

and dark brown (10YR 3/3) silt loam, brown (10YR

5/3) dry; weak fine subangular blocky structure;

friable; common fine roots; few distinct light

brownish gray (10YR 6/2) (dry) silt coatings on

faces of peds; strongly acid; clear smooth

boundary.

Bt1—20 to 26 inches; brown (10YR 4/3) silty clay

loam; moderate fine subangular blocky structure;

friable; few fine roots; few distinct gray (10YR 6/1)

(dry) silt coatings and common faint dark brown

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

acid; clear smooth boundary.

Bt2—26 to 37 inches; dark yellowish brown (10YR 4/4)

silty clay loam; moderate medium subangular

blocky structure; firm; few fine roots; common

distinct light brownish gray (10YR 6/2) (dry) silt

coatings and many faint dark yellowish brown

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

fine faint brown (10YR 5/3) and common medium

prominent strong brown (7.5YR 5/8)

redoximorphic concentrations; many prominent

very dark gray (N 3/0) and dark brown (7.5YR 3/2)

manganese concretions; strongly acid; clear

smooth boundary.

Bt3—37 to 45 inches; light yellowish brown (10YR 6/4)

silty clay loam; moderate coarse subangular

blocky structure; friable; few fine roots; many faint

dark yellowish brown (10YR 4/4) clay films on

faces of peds; common fine distinct light brownish

gray (10YR 6/2) redoximorphic depletions and few

medium prominent strong brown (7.5YR 5/8)

redoximorphic concentrations; strongly acid;

gradual smooth boundary.

BC—45 to 55 inches; yellowish brown (10YR 5/4) and

brown (10YR 4/3) silty clay loam; weak coarse

angular blocky structure; friable; few fine distinct

light brownish gray (10YR 6/2) redoximorphic

depletions; strongly acid; gradual smooth

boundary.

C—55 to 60 inches; yellowish brown (10YR 5/4) and

brown (10YR 4/3) silt loam; massive; friable; many

fine distinct yellowish brown (10YR 5/6)

redoximorphic concentrations and common

medium distinct grayish brown (10YR 5/2)

redoximorphic depletions; moderately acid.

Range in Characteristics

Thickness of the mollic epipedon: 10 to 18 inches

Thickness of the solum: 40 to more than 60 inches

Depth to free carbonates: More than 48 inches
90 Soil Survey of

Ap or A horizon:

Hue—10YR

Value—2 or 3

Chroma—1 or 2

Texture—silt loam

Bt horizon:

Hue—10YR

Value—4 to 6

Chroma—3 or 4

Texture—silty clay loam or silt loam

C or Cg horizon:

Hue—10YR or 2.5Y

Value—4 or 5

Chroma—3 to 6

Texture—silt loam

86B—Osco silt loam, 2 to 5 percent

slopes

Setting

Landform: Ground moraines

Position on the landform: Summits and shoulders

Composition

Osco and similar soils: 90 percent

Dissimilar soils: 10 percent

Minor Components

Similar soils:

• Soils that have more sand in the lower part

• Soils that have a seasonal high water table within a

depth of 4 feet

Dissimilar soils:

• The poorly drained Denny and Sable soils in

depressions

Properties and Qualities of the Osco Soil

Parent material: Loess

Drainage class: Well drained

Slowest permeability within a depth of 40 inches:

Moderate

Permeability below a depth of 60 inches: Moderate

Depth to restrictive feature: More than 80 inches

Available water capacity to a depth of 60 inches: About

11.9 inches

Content of organic matter in the surface layer: 3 to 4

percent

Shrink-swell potential: Moderate

Depth and months of the highest apparent seasonal

high water table: 4 feet, February to April

Flooding: None

Accelerated erosion: None or slight

Potential for frost action: High

Hazard of corrosion: Moderate for steel and moderate

for concrete

Surface runoff class: Low

Susceptibility to water erosion: Slight

Susceptibility to wind erosion: Slight

Interpretive Groups

Land capability classification: 2e

Prime farmland status: Prime farmland

Hydric soil status: Not hydric

86C2—Osco silt loam, 5 to 10 percent

slopes, eroded

Setting

Landform: Ground moraines

Position on the landform: Backslopes and shoulders

Composition

Osco and similar soils: 90 percent

Dissimilar soils: 10 percent

Minor Components

Similar soils:

• Soils that have more sand in the lower part

• Soils that have a seasonal high water table within a

depth of 4 feet

Dissimilar soils:

• The poorly drained Denny and Sable soils in

depressions

Properties and Qualities of the Osco Soil

Parent material: Loess

Drainage class: Well drained

Slowest permeability within a depth of 40 inches:

Moderate

Permeability below a depth of 60 inches: Moderate

Depth to restrictive feature: More than 80 inches

Available water capacity to a depth of 60 inches: About

11.7 inches

Content of organic matter in the surface layer: 2 to 3

percent

Shrink-swell potential: Moderate

Depth and months of the highest apparent seasonal

high water table: 4 feet, February to April

Flooding: None

Accelerated erosion: The surface layer has been

thinned by erosion.

Potential for frost action: High

Hazard of corrosion: Moderate for steel and moderate

for concrete
Rock Island County, Illinois 91

Surface runoff class: Medium

Susceptibility to water erosion: Moderate

Susceptibility to wind erosion: Slight

Interpretive Groups

Land capability classification: 3e

Prime farmland status: Not prime farmland

Hydric soil status: Not hydric

Otter Series

Taxonomic classification: Fine-silty, mixed,

superactive, mesic Cumulic Endoaquolls

Typical Pedon

Otter silt loam, 0 to 2 percent slopes; 1,960 feet west

and 2,540 feet south of the northeast corner of sec.

35, T. 22 N., R. 5 E.; in Whiteside County, Illinois;

USGS Morrison topographic quadrangle; lat. 41

degrees 51 minutes 06 seconds N. and long. 89

degrees 53 minutes 18 seconds W., NAD 27:

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

gray (10YR 4/1) dry; moderate medium granular

structure; friable; slightly acid; abrupt smooth

boundary.

A1—10 to 16 inches; black (10YR 2/1) silt loam, dark

gray (10YR 4/1) dry; weak fine subangular blocky

structure parting to moderate medium granular;

friable; slightly acid; clear smooth boundary.

A2—16 to 21 inches; black (2.5Y 2.5/1) silt loam, very

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

blocky structure parting to moderate medium

granular; friable; few fine distinct grayish brown

(2.5Y 5/2) iron depletions and few fine prominent

yellowish brown (10YR 5/8) iron masses in the

matrix; few fine prominent dark reddish brown

(5YR 2.5/2) coatings of iron on faces of peds;

slightly acid; clear smooth boundary.

A3—21 to 35 inches; black (2.5Y 2.5/1) mucky silt

loam, black (2.5Y 2.5/1) dry; weak medium

subangular blocky structure; friable; few fine

prominent strong brown (7.5YR 4/6) iron masses

in the matrix; few fine prominent dark reddish

brown (5YR 2.5/2) coatings of iron on faces of

peds; slightly acid; clear smooth boundary.

AB—35 to 43 inches; very dark gray (10YR 3/1) silt

loam, gray (10YR 5/1) dry; weak coarse

subangular blocky structure; friable; few fine

prominent dark reddish brown (5YR 2.5/2)

coatings of iron on faces of peds; common

medium faint dark gray (10YR 4/1) iron depletions

and few fine prominent brown (7.5YR 4/4) iron

masses in the matrix; neutral; clear smooth

boundary.

Bg—43 to 50 inches; grayish brown (2.5Y 5/2) silt loam;

weak coarse subangular blocky structure; friable;

few distinct very dark grayish brown (10YR 3/2)

organic coatings in root channels; common medium

prominent yellowish brown (10YR 5/6) and few

medium prominent brown (7.5YR 4/4) iron masses

in the matrix; neutral; clear smooth boundary.

Cg—50 to 60 inches; light brownish gray (2.5Y 6/2) silt

loam; massive; friable; common fine prominent

yellowish brown (10YR 5/6) iron masses in the

matrix; neutral.

Range in Characteristics

Thickness of the mollic epipedon: 24 to 50 inches

Thickness of the solum: 24 to 50 inches

Ap, A, or AB horizon:

Hue—7.5YR, 10YR, 2.5Y, or N

Value—2 or 3

Chroma—0 to 2

Texture—silt loam

Bg horizon:

Hue—7.5YR, 10YR, 2.5Y, or N

Value—2 to 6

Chroma—0 to 4

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

loam

Cg horizon:

Hue—10YR, 2.5Y, 5Y, or N

Value—2 to 6

Chroma—0 to 4

Texture—silt loam or loam; strata of silty clay loam

or sandy loam in some pedons

1076A—Otter silt loam, undrained, 0 to 2

percent slopes, frequently flooded

Setting

Landform: Flood plains

Composition

Otter and similar soils: 90 percent

Dissimilar soils: 10 percent

Minor Components

Similar soils:

• Soils that are calcareous within a depth of 60 inches

• Soils that contain more clay in all or part of the

profile

• Soils that consist of marshy organic material
92 Soil Survey of

Dissimilar soils:

• The poorly drained Sawmill soils on toeslopes

Properties and Qualities of the Otter Soil

Parent material: Alluvium

Drainage class: Poorly drained

Slowest permeability within a depth of 40 inches:

Moderate

Permeability below a depth of 60 inches: Moderate

Depth to restrictive feature: More than 80 inches

Available water capacity to a depth of 60 inches: About

12.5 inches

Content of organic matter in the surface layer: 3 to 5

percent

Shrink-swell potential: Moderate

Depth and months of the highest apparent seasonal

high water table: At the surface, November to June

Ponding depth: 0.2 foot during wet periods

Frequency and most likely period of flooding:

Frequent, November to June

Potential for frost action: High

Hazard of corrosion: High for steel and low for

concrete

Surface runoff class: Negligible

Susceptibility to water erosion: Slight

Susceptibility to wind erosion: Slight

Interpretive Groups

Land capability classification: 5w

Prime farmland status: Not prime farmland

Hydric soil status: Hydric

3076A—Otter silt loam, 0 to 2 percent

slopes, frequently flooded

Setting

Landform: Flood plains

Composition

Otter and similar soils: 85 percent

Dissimilar soils: 15 percent

Minor Components

Similar soils:

• Soils that are calcareous within a depth of 60 inches

• Soils that contain more clay in all or part of the

profile

Dissimilar soils:

• The poorly drained Sawmill soils on toeslopes

Properties and Qualities of the Otter Soil

Parent material: Alluvium

Drainage class: Poorly drained

Slowest permeability within a depth of 40 inches:

Moderate

Permeability below a depth of 60 inches: Moderate

Depth to restrictive feature: More than 80 inches

Available water capacity to a depth of 60 inches: About

13.1 inches

Content of organic matter in the surface layer: 3 to 5

percent

Shrink-swell potential: Moderate

Depth and months of the highest apparent seasonal

high water table: At the surface, January to May

Ponding depth: 0.2 foot during wet periods

Frequency and most likely period of flooding:

Frequent, November to June

Potential for frost action: High

Hazard of corrosion: High for steel and low for

concrete

Surface runoff class: Negligible

Susceptibility to water erosion: Slight

Susceptibility to wind erosion: Slight

Interpretive Groups

Land capability classification: 3w

Prime farmland status: Prime farmland where drained

and either protected from flooding or not

frequently flooded during the growing season

Hydric soil status: Hydric

7076A—Otter silt loam, 0 to 2 percent

slopes, rarely flooded

Setting

Landform: Flood plains

Composition

Otter and similar soils: 97 percent

Dissimilar soils: 3 percent

Minor Components

Similar soils:

• Soils that are calcareous within a depth of 60 inches

• Soils that contain more clay in all or part of the

profile

Dissimilar soils:

• Well drained soils on footslopes

• The poorly drained Sawmill soils on toeslopes

Properties and Qualities of the Otter Soil

Parent material: Alluvium

Drainage class: Poorly drained

Slowest permeability within a depth of 40 inches:

Moderate

Permeability below a depth of 60 inches: Moderate
Rock Island County, Illinois 93

Depth to restrictive feature: More than 80 inches

Available water capacity to a depth of 60 inches: About

12.9 inches

Content of organic matter in the surface layer: 3 to 10

percent

Shrink-swell potential: Moderate

Depth and months of the highest apparent seasonal

high water table: At the surface, January to May

Ponding depth: 0.2 foot during wet periods

Frequency and most likely period of flooding: Rare,

November to June

Potential for frost action: High

Hazard of corrosion: High for steel and low for concrete

Surface runoff class: Negligible

Susceptibility to water erosion: Slight

Susceptibility to wind erosion: Slight

Interpretive Groups

Land capability classification: 2w

Prime farmland status: Prime farmland where drained

Hydric soil status: Hydric

864—Pits, quarries

General Definition

• This map unit consists of open excavations from

which soil and the underlying material have been

removed and in which bedrock is exposed. Limestone

was the principal quarry rock.

865—Pits, gravel

General Definition

• This map unit consists of open excavations from

which soil and the underlying material have been

removed and used, without crushing, as a source of

sand or gravel.

800C—Psamments, sloping

Setting

Landform: Outwash plains

Position on the landform: Backslopes

Composition

Psamments and similar soils: 100 percent

Minor Components

Similar soils:

• The excessively drained Oakville soils on shoulders

and backslopes

Properties and Qualities of the Psamments

Parent material: Outwash or eolian sands

Drainage class: Excessively drained

Slowest permeability within a depth of 40 inches:

Rapid

Permeability below a depth of 60 inches: Rapid

Depth to restrictive feature: More than 80 inches

Available water capacity to a depth of 60 inches: About

4.2 inches

Content of organic matter in the surface layer: 0.0 to

0.5 percent

Shrink-swell potential: Low

Flooding: None

Accelerated erosion: None or slight

Potential for frost action: Not rated

Surface runoff class: Low

Susceptibility to water erosion: Slight

Susceptibility to wind erosion: Very high

Interpretive Groups

Land capability classification: Not assigned

Prime farmland status: Not prime farmland

Hydric soil status: Not hydric

Raddle Series

Taxonomic classification: Fine-silty, mixed,

superactive, mesic Typic Hapludolls

Typical Pedon

Raddle silt loam, 0 to 2 percent slopes; 1,780 feet west

and 2,020 feet north of the southeast corner of sec.

23, T. 19 N., R. 4 E.; in Whiteside County, Illinois;

Spring Hill topographic quadrangle; lat. 41 degrees 37

minutes 03 seconds N. and long. 90 degrees 00

minutes 13 seconds W., NAD 27:

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

gray (10YR 4/1) dry; weak fine and medium

granular structure; friable; slightly acid; abrupt

smooth boundary.

A1—10 to 16 inches; very dark grayish brown (10YR

3/2) silt loam, grayish brown (10YR 5/2) dry;

moderate medium subangular blocky structure

parting to weak fine granular; friable; many faint

very dark gray (10YR 3/1) organic coatings on

faces of peds; moderately acid; clear smooth

boundary.

A2—16 to 21 inches; dark brown (10YR 3/3) silt loam,

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

subangular blocky structure; friable; clay films on

faces of peds; very dark grayish brown (10YR 3/2)

organic coatings on faces of peds; moderately

acid; clear smooth boundary.
94 Soil Survey of

BA—21 to 26 inches; brown (10YR 4/3) silt loam;

moderate medium subangular blocky structure;

friable; common faint dark brown (10YR 3/3)

organic coatings on faces of peds; moderately

acid; clear smooth boundary.

Bt1—26 to 34 inches; dark yellowish brown (10YR 4/4)

silt loam; moderate medium subangular blocky

structure; friable; common faint brown (10YR 4/3)

clay films on faces of peds; moderately acid;

gradual smooth boundary.

Bt2—34 to 51 inches; dark yellowish brown (10YR 4/4)

silt loam; moderate coarse subangular blocky

structure; friable; few faint brown (10YR 4/3) clay

films on faces of peds; moderately acid; clear

smooth boundary.

BC—51 to 61 inches; yellowish brown (10YR 5/4) silt

loam; weak coarse angular blocky structure;

friable; few fine black (7.5YR 2.5/1) ironmanganese stains on faces of peds; few fine

distinct light brownish gray (10YR 6/2) iron

depletions; moderately acid; clear smooth

boundary.

C—61 to 80 inches; yellowish brown (10YR 5/4) silt

loam; massive; friable; few fine prominent black

(7.5YR 2.5/1) soft masses of iron-manganese in

the matrix; few fine distinct light brownish gray

(10YR 6/2) iron depletions; slightly acid.

Range in Characteristics

Thickness of the mollic epipedon: 10 to 24 inches

Thickness of the solum: 40 to more than 80 inches

Ap or A horizon:

Hue—10YR

Value—2 or 3

Chroma—1 to 3

Texture—silt loam

Bt or Bw horizon:

Hue—7.5YR or 10YR

Value—3 to 6

Chroma—3 or 4

Texture—silt loam

C horizon:

Hue—7.5YR or 10YR

Value—3 to 6

Chroma—2 to 4

Texture—silt loam; thin strata of sandy loam,

loam, clay loam, or silty clay loam in some

pedons

430A—Raddle silt loam, 0 to 2 percent

slopes

Setting

Landform: Stream terraces

Position on the landform: Summits

Composition

Raddle and similar soils: 95 percent

Dissimilar soils: 5 percent

Minor Components

Similar soils:

• Soils that have a surface layer either less than 10

inches thick or more than 24 inches thick

• Soils that have a seasonal high water table within a

depth of 60 inches

• Soils that have less silt and more sand in the surface

layer

Dissimilar soils:

• Somewhat poorly drained soils on footslopes

Properties and Qualities of the Raddle Soil

Parent material: Slope alluvium

Drainage class: Well drained

Slowest permeability within a depth of 40 inches:

Moderate

Permeability below a depth of 60 inches: Moderate

Depth to restrictive feature: More than 80 inches

Available water capacity to a depth of 60 inches: About

13 inches

Content of organic matter in the surface layer: 2 to 4

percent

Shrink-swell potential: Low

Flooding: None

Accelerated erosion: None or slight

Potential for frost action: High

Hazard of corrosion: Moderate for steel and moderate

for concrete

Surface runoff class: Low

Susceptibility to water erosion: Slight

Susceptibility to wind erosion: Slight

Interpretive Groups

Land capability classification: 1

Prime farmland status: Prime farmland

Hydric soil status: Not hydric
Rock Island County, Illinois 95

430B—Raddle silt loam, 2 to 5 percent

slopes

Setting

Landform: Terraces

Position on the landform: Shoulders and backslopes

Composition

Raddle and similar soils: 89 percent

Dissimilar soils: 11 percent

Minor Components

Similar soils:

• Soils that have a surface layer either less than 10

inches thick or more than 24 inches thick

• Soils that have a seasonal high water table within a

depth of 60 inches

• Soils that have less silt and more sand in the surface

layer

Dissimilar soils:

• The somewhat poorly drained Orion soils and other

somewhat poorly drained soils; on footslopes

Properties and Qualities of the Raddle Soil

Parent material: Alluvium

Drainage class: Well drained

Slowest permeability within a depth of 40 inches:

Moderate

Permeability below a depth of 60 inches: Moderate

Depth to restrictive feature: More than 80 inches

Available water capacity to a depth of 60 inches: About

12.8 inches

Content of organic matter in the surface layer: 2 to 4

percent

Shrink-swell potential: Low

Flooding: None

Accelerated erosion: None or slight

Potential for frost action: High

Hazard of corrosion: Moderate for steel and moderate

for concrete

Surface runoff class: Low

Susceptibility to water erosion: Moderate

Susceptibility to wind erosion: Slight

Interpretive Groups

Land capability classification: 2e

Prime farmland status: Prime farmland

Hydric soil status: Not hydric

Radford Series

Taxonomic classification: Fine-silty, mixed,

superactive, mesic Fluvaquentic Hapludolls

Typical Pedon

Radford silt loam, 0 to 2 percent slopes, occasionally

flooded; 1,109 feet west and 1,254 feet south of the

northeast corner of sec. 23, T. 17 N., R. 8 E.; in Bureau

County, Illinois; USGS Buda Northeast topographic

quadrangle; lat. 41 degrees 26 minutes 54 seconds N.

and long. 89 degrees 32 minutes 04 seconds W., NAD

27:

Ap—0 to 9 inches; very dark grayish brown (10YR 3/2)

silt loam, grayish brown (10YR 5/2) dry; moderate

medium granular structure; friable; common fine

roots; moderately acid; abrupt smooth boundary.

A—9 to 21 inches; very dark grayish brown (10YR 3/2)

silt loam, grayish brown (10YR 5/2) dry; moderate

medium granular structure; friable; common fine

roots; few fine dark masses of iron and

manganese throughout; slightly acid; gradual

smooth boundary.

C—21 to 29 inches; stratified very dark gray (10YR

3/1) silt loam and brown (10YR 5/3) silty clay

loam; weak medium subangular blocky structure;

friable; few fine roots; common fine dark masses

of iron and manganese throughout; slightly acid;

clear smooth boundary.

Ab1—29 to 36 inches; black (10YR 2/1) silty clay loam;

moderate medium subangular blocky structure;

friable; few fine roots; few medium faint very dark

grayish brown (10YR 3/2) masses of iron and

manganese in the matrix; few very fine dark

masses of iron and manganese throughout;

slightly acid; clear smooth boundary.

Ab2—36 to 43 inches; black (10YR 2/1) silty clay loam;

weak medium subangular blocky structure; friable;

few fine faint very dark grayish brown (10YR 3/2)

masses of iron and manganese in the matrix; few

very fine dark masses of iron and manganese

throughout; neutral; clear smooth boundary.

Bgb—43 to 60 inches; black (10YR 2/1) silty clay loam;

moderate medium prismatic structure parting to

moderate medium subangular blocky; friable; few

fine faint dark gray (10YR 4/1) iron depletions in

the matrix; few very fine dark masses of iron and

manganese throughout; neutral.

Range in Characteristics

Thickness of the mollic epipedon: 10 to 24 inches
96 Soil Survey of

Depth to the buried soil: 20 to 40 inches

Ap or A horizon:

Value—2 or 3

Chroma—1 or 2

C horizon:

Hue—10YR

Value—2 to 6

Chroma—1 or 2

Texture—silt loam

Ab horizon:

Hue—10YR or N

Value—2 or 3

Chroma—0 or 1

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

loam

Bgb horizon (if it occurs):

Hue—10YR, 2.5Y, 5Y, or N

Value—3 to 6

Chroma—0 to 2

3074A—Radford silt loam, 0 to 2 percent

slopes, frequently flooded

Setting

Landform: Flood plains

Composition

Radford and similar soils: 95 percent

Dissimilar soils: 5 percent

Minor Components

Similar soils:

• Soils that have a buried surface layer within a depth

of 20 inches

• Soils that have more sand and less silt in the control

section

• Soils that have a seasonal high water table within a

depth of 1 foot

Dissimilar soils:

• Soils that are less frequently flooded

• The poorly drained Sawmill soils on flood plains

Properties and Qualities of the Radford Soil

Parent material: Alluvium

Drainage class: Somewhat poorly drained

Slowest permeability within a depth of 40 inches:

Moderate

Permeability below a depth of 60 inches: Moderate

Depth to restrictive feature: More than 80 inches

Available water capacity to a depth of 60 inches: About

12.3 inches

Content of organic matter in the surface layer: 2 to 4

percent

Shrink-swell potential: Moderate

Depth and months of the highest apparent seasonal

high water table: 1 foot, January to May

Frequency and most likely period of flooding:

Frequent, November to June

Potential for frost action: High

Hazard of corrosion: High for steel and moderate for

concrete

Surface runoff class: Low

Susceptibility to water erosion: Slight

Susceptibility to wind erosion: Slight

Interpretive Groups

Land capability classification: 3w

Prime farmland status: Prime farmland where

protected from flooding or not frequently flooded

during the growing season

Hydric soil status: Not hydric

Rozetta Series

Taxonomic classification: Fine-silty, mixed,

superactive, mesic Typic Hapludalfs

Typical Pedon (Official Series Description)

Rozetta silt loam, 0 to 2 percent slopes, at an elevation

of 890 feet; 150 feet south and 500 feet east of the

center of sec. 18, T. 27 N., R. 6 E.; in Stephenson

County, Illinois; USGS Pearl City topographic

quadrangle; lat. 42 degrees 20 minutes 00 seconds N.

and long. 89 degrees 51 minutes 19 seconds W., NAD

27:

A—0 to 4 inches; very dark gray (10YR 3/1) silt loam,

gray (10YR 6/1) dry; weak medium granular

structure; friable; many fine roots throughout;

moderately acid; clear wavy boundary.

E—4 to 11 inches; dark grayish brown (10YR 4/2) silt

loam; weak medium platy structure; friable; many

fine roots throughout; strongly acid; clear smooth

boundary.

BE—11 to 14 inches; brown (10YR 4/3) silty clay loam;

weak medium subangular blocky structure; firm;

many fine roots between peds; few faint brown

(10YR 5/3) (dry) clay depletions on faces of peds;

strongly acid; clear smooth boundary.

Bt1—14 to 21 inches; dark yellowish brown (10YR 4/4)

silty clay loam; moderate fine and medium

subangular blocky structure; firm; many fine roots

between peds; many faint brown (10YR 5/3) clay

films on faces of peds; strongly acid; clear smooth

boundary.
Rock Island County, Illinois 97

Bt2—21 to 39 inches; brown (10YR 5/3) silty clay

loam; moderate medium and coarse subangular

blocky structure; firm; many faint dark yellowish

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

medium faint grayish brown (10YR 5/2) iron

depletions; common medium faint light yellowish

brown (10YR 6/4) and brown (10YR 4/3) masses

of iron in the matrix; strongly acid; clear smooth

boundary.

Bt3—39 to 50 inches; yellowish brown (10YR 5/4) silty

clay loam; weak coarse subangular blocky

structure; firm; few faint brown (10YR 4/3) clay

films on faces of peds; common medium distinct

grayish brown (10YR 5/2) iron depletions;

common medium faint pale brown (10YR 6/3)

masses of iron in the matrix; moderately acid;

clear smooth boundary.

C—50 to 60 inches; yellowish brown (10YR 5/4) silt

loam; massive; friable; common medium distinct

dark grayish brown (10YR 4/2) iron depletions;

slightly acid.

Range in Characteristics

Thickness of the solum: 42 to 72 inches

Ap or A horizon:

Hue—10YR

Value—3 to 5

Chroma—1 to 3

Texture—silt loam

E horizon:

Hue—10YR

Value—4 to 6

Chroma—2 or 3

Texture—silt loam

Bt horizon:

Hue—7.5YR or 10YR

Value—4 to 6

Chroma—3 to 6

Texture—silty clay loam

C horizon:

Hue—10YR

Value—4 to 6

Chroma—2 to 6

Texture—silt loam or silty clay loam

279A—Rozetta silt loam, 0 to 2 percent

slopes

Setting

Landform: Ground moraines

Position on the landform: Summits

Composition

Rozetta and similar soils: 98 percent

Dissimilar soils: 2 percent

Minor Components

Similar soils:

• Soils that have a darker surface layer

• Soils that do not have a seasonal high water table

within a depth of 6 feet

Dissimilar soils:

• The somewhat poorly drained Atterberry and

Stronghurst soils on shoulders

• The poorly drained Denny soils in depressions

Properties and Qualities of the Rozetta Soil

Parent material: Loess

Drainage class: Well drained

Slowest permeability within a depth of 40 inches:

Moderate

Permeability below a depth of 60 inches: Moderate

Depth to restrictive feature: More than 80 inches

Available water capacity to a depth of 60 inches: About

12.4 inches

Content of organic matter in the surface layer: 1 to 3

percent

Shrink-swell potential: Moderate

Depth and months of the highest apparent seasonal

high water table: 4 feet, February to April

Flooding: None

Accelerated erosion: None or slight

Potential for frost action: High

Hazard of corrosion: Moderate for steel and moderate

for concrete

Surface runoff class: Low

Susceptibility to water erosion: Slight

Susceptibility to wind erosion: Slight

Interpretive Groups

Land capability classification: 1

Prime farmland status: Prime farmland

Hydric soil status: Not hydric

279B—Rozetta silt loam, 2 to 5 percent

slopes

Setting

Landform: Ground moraines

Position on the landform: Summits and shoulders

Composition

Rozetta and similar soils: 91 percent

Dissimilar soils: 9 percent
98 Soil Survey of

Minor Components

Similar soils:

• Soils that have a darker surface layer

• Soils that have do not have a seasonal high water

table within a depth of 6 feet

Dissimilar soils:

• The somewhat poorly drained Stronghurst soils on

summits

• The well drained Hickory soils on backslopes

Properties and Qualities of the Rozetta Soil

Parent material: Loess

Drainage class: Well drained

Slowest permeability within a depth of 40 inches:

Moderate

Permeability below a depth of 60 inches: Moderate

Depth to restrictive feature: More than 80 inches

Available water capacity to a depth of 60 inches: About

12.3 inches

Content of organic matter in the surface layer: 1 to 3

percent

Shrink-swell potential: Moderate

Depth and months of the highest apparent seasonal

high water table: 4 feet, February to April

Flooding: None

Accelerated erosion: None or slight

Potential for frost action: High

Hazard of corrosion: Moderate for steel and moderate

for concrete

Surface runoff class: Low

Susceptibility to water erosion: Moderate

Susceptibility to wind erosion: Slight

Interpretive Groups

Land capability classification: 2e

Prime farmland status: Prime farmland

Hydric soil status: Not hydric

Sable Series

Taxonomic classification: Fine-silty, mixed,

superactive, mesic Typic Endoaquolls

Typical Pedon (Official Series Description)

Sable silty clay loam, 0 to 2 percent slopes; 1,281 feet

south and 97 feet west of the northeast corner of sec.

14, T. 9 N., R. 3 W.; in Warren County, Illinois; USGS

Kirkwood East topographic quadrangle; lat. 40 degrees

46 minutes 30 seconds N. and long. 90 degrees 41

minutes 32 seconds W., NAD 27:

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

dark gray (10YR 4/1) dry; moderate fine and

medium granular structure; firm; moderately acid;

abrupt smooth boundary.

A—8 to 19 inches; black (10YR 2/1) silty clay loam,

dark gray (10YR 4/1) dry; moderate very fine

angular blocky structure; firm; few fine rounded

dark concretions of iron and manganese oxides;

slightly acid; clear smooth boundary.

AB—19 to 23 inches; very dark gray (10YR 3/1) silty

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

moderate fine angular blocky structure; firm; few

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

coatings on faces of peds; few fine dark rounded

concretions of iron and manganese; clear smooth

boundary.

Bg—23 to 29 inches; dark gray (10YR 4/1) silty clay

loam; moderate fine and medium subangular

blocky structure; firm; common faint very dark gray

(10YR 3/1) organic coatings on faces of peds;

common fine and medium dark rounded

concretions of iron and manganese oxides;

common medium distinct brown (10YR 5/3)

masses of iron in the matrix; few medium faint

dark grayish brown (10YR 4/2) iron depletions;

neutral; clear smooth boundary.

Btg1—29 to 38 inches; grayish brown (2.5Y 5/2) silty

clay loam; moderate medium and coarse

subangular blocky structure; firm; few distinct dark

gray (10YR 4/1) clay films on faces of peds; many

fine and medium dark rounded concretions of iron

and manganese; many medium prominent

yellowish brown (10YR 5/6) masses of iron in the

matrix; neutral; clear wavy boundary.

Btg2—38 to 47 inches; gray (N 5/0) silt loam; weak

medium prismatic structure parting to weak

medium and coarse angular blocky; firm; few

prominent grayish brown (10YR 5/2) clay films on

faces of peds; common fine dark rounded

concretions of iron and manganese; many

medium prominent yellowish brown (10YR 5/6)

masses of iron in the matrix; slightly alkaline;

gradual smooth boundary.

Cg—47 to 60 inches; gray (N 5/0) silt loam; massive;

friable; many fine prominent yellowish brown

(10YR 5/6) masses of iron in the matrix; slightly

effervescent; slightly alkaline.

Range in Characteristics

Thickness of the mollic epipedon: 12 to 24 inches

Thickness of the solum: 40 to 60 inches

Ap or A horizon:

Hue—10YR to 5Y or N

Value—2 or 3

Chroma—0 or 1

Texture—silty clay loam or silt loam
Rock Island County, Illinois 99

Bg or Btg horizon:

Hue—10YR to 5Y or N

Value—3 to 6

Chroma—0 to 2

Texture—silty clay loam or silt loam

C horizon:

Hue—10YR to 5Y or N

Value—4 to 6

Chroma—0 to 2

Texture—silt loam or silty clay loam

68A—Sable silty clay loam, 0 to 2 percent

slopes

Setting

Landform: Ground moraines

Position on the landform: Summits

Composition

Sable and similar soils: 90 percent

Dissimilar soils: 10 percent

Minor Components

Similar soils:

• Soils that have a seasonal high water table at a

depth of more than 1 foot

• Soils that are calcareous in the lower part

• Soils that have less clay in the surface layer and

more clay in the subsoil

Dissimilar soils:

• The moderately well drained Buckhart soils on

shoulders

• The well drained Osco soils on summits

Properties and Qualities of the Sable Soil

Parent material: Loess

Drainage class: Poorly drained

Slowest permeability within a depth of 40 inches:

Moderate

Permeability below a depth of 60 inches: Moderate

Depth to restrictive feature: More than 80 inches

Available water capacity to a depth of 60 inches: About

11.9 inches

Content of organic matter in the surface layer: 5 to 6

percent

Shrink-swell potential: Moderate

Depth and months of the highest apparent seasonal

high water table: At the surface, January to May

Ponding depth: 0.2 foot during wet periods

Flooding: None

Accelerated erosion: None or slight

Potential for frost action: High

Hazard of corrosion: High for steel and low for

concrete

Surface runoff class: Negligible

Susceptibility to water erosion: Slight

Susceptibility to wind erosion: Very slight

Interpretive Groups

Land capability classification: 2w

Prime farmland status: Prime farmland where drained

Hydric soil status: Hydric

Saude Series

Taxonomic classification: Coarse-loamy over sandy or

sandy-skeletal, mixed, superactive, mesic Typic

Hapludolls

Typical Pedon

Saude loam, 0 to 2 percent slopes; 2,563 feet west

and 1,363 feet north of the southeast corner of sec.

10, T. 20 N., R. 2 E.; in Rock Island County, Illinois;

USGS Cordova topographic quadrangle; lat. 41

degrees 43 minutes 59 seconds N. and long. 90

degrees 15 minutes 22 seconds W., NAD 27:

Ap—0 to 9 inches; very dark gray (10YR 3/1) loam;

moderate medium subangular blocky structure;

friable; moderately acid; clear smooth boundary.

A—9 to 14 inches; very dark gray (10YR 3/1) loam;

weak coarse subangular blocky structure parting

to moderate fine and medium granular; friable;

moderately acid; clear smooth boundary.

BA—14 to 22 inches; very dark gray (10YR 3/1), very

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

(7.5YR 3/2) loam; moderate medium prismatic

structure parting to moderate medium subangular

blocky; friable; strongly acid; clear smooth

boundary.

Bw—22 to 29 inches; brown (7.5YR 4/4) and dark

brown (7.5YR 3/4) loam; weak coarse subangular

blocky structure; friable; moderate discontinuous

dark brown (7.5YR 3/2) organo-clay coatings on

faces of peds; strongly acid; clear smooth boundary.

2C—29 to 50 inches; yellowish brown (10YR 5/4) and

dark brown (10YR 3/3) medium and coarse sand

and fine gravel; single grain; moderately acid.

Range in Characteristics

Depth to sand and gravel: 18 to 36 inches

A or Ap horizon:

Hue—10YR

Value—2 or 3

Chroma—1 or 2
100 Soil Survey of

Bw horizon:

Hue—7.5YR or 10YR

Value—4 or 5

Chroma—3 to 6

Texture—loam or sandy loam

2BC and 2C horizons:

Hue—7.5YR or 10YR

Value—4 or 5

Chroma—4 to 6

Texture—gravelly coarse sand, coarse sand,

loamy sand, or sand

774A—Saude loam, 0 to 2 percent slopes

Setting

Landform: Outwash plains

Composition

Saude and similar soils: 100 percent

Minor Components

Similar soils:

• Soils that have less gravel in the lower part

• Soils that do not have reddish colors

• Soils that have a thinner or lighter colored surface

layer

Properties and Qualities of the Saude Soil

Parent material: Outwash

Drainage class: Well drained

Slowest permeability within a depth of 40 inches:

Moderate

Permeability below a depth of 60 inches: Very rapid

Depth to restrictive feature: More than 80 inches

Available water capacity to a depth of 60 inches: About

6.7 inches

Content of organic matter in the surface layer: 3 to 4

percent

Shrink-swell potential: Low

Flooding: None

Accelerated erosion: None or slight

Potential for frost action: Moderate

Hazard of corrosion: Low for steel and moderate for

concrete

Surface runoff class: Low

Susceptibility to water erosion: Slight

Susceptibility to wind erosion: Slight

Interpretive Groups

Land capability classification: 2s

Prime farmland status: Prime farmland

Hydric soil status: Not hydric

Sawmill Series

Taxonomic classification: Fine-silty, mixed,

superactive, mesic Cumulic Endoaquolls

Typical Pedon (Official Series Description)

Sawmill silty clay loam, 0 to 2 percent slopes,

occasionally flooded; 300 feet south and 750 feet east

of the northwest corner of sec. 20, T. 15 N., R. 4 W.; in

Sangamon County, Illinois; USGS New City

topographic quadrangle; lat. 39 degrees 44 minutes 34

seconds N. and long. 89 degrees 34 minutes 15

seconds W., NAD 27:

Ap—0 to 10 inches; very dark gray (10YR 3/1) and

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

loam, gray (10YR 5/1) dry; weak fine subangular

blocky structure; firm; few fine roots throughout;

few subrounded pebbles 1 to 3 millimeters in

diameter; slightly acid; clear smooth boundary.

A1—10 to 17 inches; black (10YR 2/1) and very dark

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

gray (10YR 4/1) dry; moderate fine subangular

blocky structure; firm; few fine roots between peds;

few subrounded pebbles 1 to 3 millimeters in

diameter; few fine prominent yellowish brown

(10YR 5/6) masses of iron in the matrix; few fine

concretions of manganese lining root channels

and pores; neutral; clear smooth boundary.

A2—17 to 25 inches; black (10YR 2/1) silty clay loam,

dark gray (10YR 4/1) dry; moderate fine and

medium angular blocky structure; firm; few fine

roots between peds; few fine concretions of

manganese lining root channels and pores; few

fine prominent yellowish brown (10YR 5/6)

masses of iron in the matrix; neutral; clear smooth

boundary.

AB—25 to 32 inches; very dark gray (10YR 3/1) silty

clay loam, gray (10YR 5/1) dry; weak medium

prismatic structure parting to moderate fine

subangular blocky; firm; few fine roots between

peds; few fine concretions of manganese lining

root channels and pores; few fine prominent

yellowish brown (10YR 5/6) masses of iron in the

matrix; neutral; clear smooth boundary.

Bg—32 to 40 inches; dark gray (10YR 4/1) silty clay

loam; weak medium prismatic structure parting to

moderate fine and medium angular blocky; firm;

few fine roots between peds; few faint very dark

gray (10YR 3/1) organic coatings on faces of

peds; few fine concretions of manganese lining

root channels and pores; few fine prominent

strong brown (7.5YR 5/6) masses of iron in the

matrix; slightly alkaline; clear smooth boundary.

Btg1—40 to 49 inches; grayish brown (10YR 5/2) silty
Rock Island County, Illinois 101

clay loam; moderate medium prismatic structure

parting to weak medium angular blocky; firm;

common distinct dark gray (10YR 4/1) clay films

on faces of peds; few fine concretions of

manganese lining root channels and pores; few

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

common fine distinct yellowish brown (10YR 5/4)

masses of iron in the matrix; slightly alkaline; clear

smooth boundary.

Btg2—49 to 58 inches; grayish brown (2.5Y 5/2) silty

clay loam; moderate medium prismatic structure;

firm; few distinct gray (10YR 5/1) clay films on

faces of peds; few fine concretions of manganese

lining pores; few fine prominent yellowish brown

(10YR 5/6) masses of iron in the matrix; slightly

alkaline; gradual smooth boundary.

Cg—58 to 65 inches; grayish brown (2.5Y 5/2) silty

clay loam; massive; firm; very dark gray (10YR

3/1) channel linings and fillings; many medium

prominent yellowish brown (10YR 5/6) masses of

iron in the matrix; slightly alkaline.

Range in Characteristics

Thickness of the mollic epipedon: 24 to 36 inches

Thickness of the solum: 36 to 60 inches

Ap or A horizon:

Hue—10YR, 2.5Y, 5Y, or N

Value—2 or 3

Chroma—0 to 2

Texture—silty clay loam

Bg or Btg horizon:

Hue—10YR, 2.5Y, or 5Y

Value—3 to 6

Chroma—1 or 2

Texture—silty clay loam; stratified in some pedons

Cg horizon:

Hue—10YR, 2.5Y, 5Y, or N

Value—4 to 6

Chroma—0 to 2

Texture—silty clay loam or clay loam; stratified in

some pedons

1107A—Sawmill silty clay loam,

undrained, 0 to 2 percent slopes,

frequently flooded

Setting

Landform: Flood plains

Composition

Sawmill and similar soils: 90 percent

Dissimilar soils: 10 percent

Minor Components

Similar soils:

• Soils that contain more clay in the subsoil

• Soils that contain less clay in the subsoil

Dissimilar soils:

• The poorly drained Millington soils on toeslopes

Properties and Qualities of the

Sawmill Soil

Parent material: Alluvium

Drainage class: Poorly drained

Slowest permeability within a depth of 40 inches:

Moderate

Permeability below a depth of 60 inches: Moderate

Depth to restrictive feature: More than 80 inches

Available water capacity to a depth of 60 inches: About

12.5 inches

Content of organic matter in the surface layer: 4 to 5

percent

Shrink-swell potential: Moderate

Depth and months of the highest apparent seasonal

high water table: At the surface, November to

June

Ponding depth: 0.2 foot during wet periods

Frequency and most likely period of flooding:

Frequent, November to June

Potential for frost action: High

Hazard of corrosion: High for steel and low for

concrete

Surface runoff class: Negligible

Susceptibility to water erosion: Slight

Susceptibility to wind erosion: Very slight

Interpretive Groups

Land capability classification: 5w

Prime farmland status: Not prime farmland

Hydric soil status: Hydric

3107A—Sawmill silty clay loam, 0 to 2

percent slopes, frequently flooded

Setting

Landform: Flood plains

Composition

Sawmill and similar soils: 99 percent

Dissimilar soils: 1 percent

Minor Components

Similar soils:

• Soils that contain more clay in the subsoil

• Soils that contain less clay in the subsoil
102 Soil Survey of

Dissimilar soils:

• Well drained soils on footslopes

Properties and Qualities of the Sawmill Soil

Parent material: Alluvium

Drainage class: Poorly drained

Slowest permeability within a depth of 40 inches:

Moderate

Permeability below a depth of 60 inches: Moderate

Depth to restrictive feature: More than 80 inches

Available water capacity to a depth of 60 inches: About

13 inches

Content of organic matter in the surface layer: 4 to 5

percent

Shrink-swell potential: Moderate

Depth and months of the highest apparent seasonal

high water table: At the surface, January to

May

Frequency and most likely period of flooding:

Frequent, November to June

Potential for frost action: High

Hazard of corrosion: High for steel and low for

concrete

Surface runoff class: Negligible

Susceptibility to water erosion: Slight

Susceptibility to wind erosion: Very slight

Interpretive Groups

Land capability classification: 3w

Prime farmland status: Prime farmland where

drained and either protected from flooding or

not frequently flooded during the growing

season

Hydric soil status: Hydric

7107A—Sawmill silty clay loam, 0 to 2

percent slopes, rarely flooded

Setting

Landform: Flood plains

Composition

Sawmill and similar soils: 90 percent

Dissimilar soils: 10 percent

Minor Components

Similar soils:

• Soils that contain more clay in the subsoil

• Soils that contain less clay in the subsoil

Dissimilar soils:

• Well drained soils on footslopes

Properties and Qualities of the Sawmill Soil

Parent material: Alluvium

Drainage class: Poorly drained

Slowest permeability within a depth of 40 inches:

Moderate

Permeability below a depth of 60 inches: Moderate

Depth to restrictive feature: More than 80 inches

Available water capacity to a depth of 60 inches: About

11.2 inches

Content of organic matter in the surface layer: 4 to 5

percent

Shrink-swell potential: Moderate

Depth and months of the highest apparent seasonal

high water table: At the surface, January to May

Ponding depth: 0.2 foot during wet periods

Frequency and most likely period of flooding: Rare,

November to June

Potential for frost action: High

Hazard of corrosion: High for steel and low for

concrete

Surface runoff class: Low

Susceptibility to water erosion: Slight

Susceptibility to wind erosion: Very slight

Interpretive Groups

Land capability classification: 2w

Prime farmland status: Prime farmland where drained

Hydric soil status: Hydric

8107+—Sawmill silt loam, 0 to 2 percent

slopes, occasionally flooded,

overwash

Setting

Landform: Flood plains

Composition

Sawmill and similar soils: 85 percent

Dissimilar soils: 15 percent

Minor Components

Similar soils:

• Soils that have less clay in the middle and lower

parts of the control section

• Soils that are calcareous in the control section

Dissimilar soils:

• Well drained soils on summits
Rock Island County, Illinois 103

Properties and Qualities of the Sawmill Soil

Parent material: Alluvium

Drainage class: Poorly drained

Slowest permeability within a depth of 40 inches:

Moderate

Permeability below a depth of 60 inches: Moderate

Depth to restrictive feature: More than 80 inches

Available water capacity to a depth of 60 inches: About

12.8 inches

Content of organic matter in the surface layer: 4 to 5

percent

Shrink-swell potential: Moderate

Depth and months of the highest apparent seasonal

high water table: At the surface, January to May

Frequency and most likely period of flooding:

Occasional, November to June

Potential for frost action: High

Hazard of corrosion: High for steel and low for

concrete

Surface runoff class: Negligible

Susceptibility to water erosion: Slight

Susceptibility to wind erosion: Slight

Interpretive Groups

Land capability classification: 2w

Prime farmland status: Prime farmland where drained

Hydric soil status: Hydric

Seaton Series

Taxonomic classification: Fine-silty, mixed,

superactive, mesic Typic Hapludalfs

Typical Pedon

Seaton silt loam, 2 to 5 percent slopes; 660 feet north

and 30 feet east of the center of sec. 8, T. 11 N., R. 4

W.; in Whiteside County, Illinois; USGS Rozetta

topographic quadrangle; lat. 40 degrees 57 minutes 44

seconds N. and long. 90 degrees 52 minutes 24

seconds W., NAD 27:

A—0 to 4 inches; dark brown (10YR 3/3) silt loam,

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

structure; very friable; slightly acid; clear smooth

boundary.

E—4 to 9 inches; brown (10YR 4/3) silt loam, pale

brown (10YR 6/3) dry; weak thin platy structure;

friable; slightly acid; clear smooth boundary.

BE—9 to 15 inches; yellowish brown (10YR 5/4) silt

loam; weak fine and medium subangular blocky

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

clay films and common faint light yellowish brown

(10YR 6/4) silt coatings on faces of peds;

moderately acid; clear smooth boundary.

Bt1—15 to 21 inches; yellowish brown (10YR 5/4) silt

loam; moderate fine and medium subangular

blocky structure; friable; few faint dark brown

(10YR 3/3) clay films and few faint light yellowish

brown (10YR 6/4) silt coatings on faces of peds;

moderately acid; clear smooth boundary.

Bt2—21 to 27 inches; brown (7.5YR 5/4) silt loam;

moderate fine and medium subangular blocky

structure; firm; few faint dark brown (10YR 3/3)

clay films and few faint light yellowish brown

(10YR 6/4) silt coatings on faces of peds; strongly

acid; clear smooth boundary.

Bt3—27 to 34 inches; yellowish brown (10YR 5/4) silt

loam; moderate medium angular blocky structure;

firm; common faint dark brown (10YR 3/3) clay

films on faces of peds; strongly acid; gradual

smooth boundary.

Bt4—34 to 44 inches; brown (10YR 5/3) silt loam;

weak medium and coarse prismatic structure; firm;

few faint dark brown (10YR 3/3) clay films and few

faint light yellowish brown (10YR 6/4) silt coatings

on faces of peds; moderately acid; gradual smooth

boundary.

BC—44 to 70 inches; brown (10YR 4/3) silt loam;

weak very coarse prismatic structure; friable; few

faint dark brown (7.5YR 4/2) clay films on vertical

faces of peds; moderately acid; gradual smooth

boundary.

C—70 to 95 inches; light brownish gray (10YR 6/2)

and brown (10YR 5/3) silt loam; massive; friable;

common fine faint dark yellowish brown (10YR

4/4) and yellowish brown (10YR 5/6) masses of

iron; massive; friable; slightly acid.

Range in Characteristics

Thickness of the loess: More than 80 inches

Thickness of the solum: 42 to more than 60 inches

Ap or A horizon:

Hue—10YR

Value—2 to 4

Chroma—2 or 3

Texture—silt loam or silt

Reaction—moderately acid to neutral

E horizon (if it occurs):

Hue—10YR

Value—4 to 6

Chroma—2 to 4

Texture—silt loam or silt

Reaction—moderately acid to neutral

Bt horizon:

Hue—7.5YR, 10YR, or 2.5Y

Value—4 or 5

Chroma—3 to 6
104 Soil Survey of

Texture—silt loam or silt

Reaction—very strongly acid to neutral

BC horizon (if it occurs):

Hue—10YR or 2.5Y

Value—4 or 5

Chroma—3 or 4

C horizon:

Hue—10YR or 2.5Y

Value—4 to 6

Chroma—2 to 6

Texture—silt loam or silt

Reaction—moderately acid to moderately alkaline

274B—Seaton silt loam, 2 to 5 percent

slopes

Setting

Landform: Ground moraines

Position on the landform: Shoulders

Composition

Seaton and similar soils: 92 percent

Dissimilar soils: 8 percent

Minor Components

Similar soils:

• Soils that have a darker surface layer

• Soils that have a seasonal high water table within a

depth of 60 inches

Dissimilar soils:

• The somewhat poorly drained Joy soils on summits

• The excessively drained Oakville soils on shoulders

• The well drained Thebes soils on shoulders

Properties and Qualities of the Seaton Soil

Parent material: Loess

Drainage class: Well drained

Slowest permeability within a depth of 40 inches:

Moderate

Permeability below a depth of 60 inches: Moderate

Depth to restrictive feature: More than 80 inches

Available water capacity to a depth of 60 inches: About

12.7 inches

Content of organic matter in the surface layer: 1 to 3

percent

Shrink-swell potential: Low

Flooding: None

Accelerated erosion: None or slight

Potential for frost action: High

Hazard of corrosion: Low for steel and moderate for

concrete

Surface runoff class: Low

Susceptibility to water erosion: Moderate

Susceptibility to wind erosion: Slight

Interpretive Groups

Land capability classification: 2e

Prime farmland status: Prime farmland

Hydric soil status: Not hydric

274B2—Seaton silt loam, 2 to 5 percent

slopes, eroded

Setting

Landform: Ground moraines

Composition

Seaton and similar soils: 97 percent

Dissimilar soils: 3 percent

Minor Components

Similar soils:

• Soils that have a darker surface layer

• Soils that have a seasonal high water table within a

depth of 60 inches

Dissimilar soils:

• The excessively drained Oakville soils on

backslopes

Properties and Qualities of the Seaton Soil

Parent material: Loess

Drainage class: Well drained

Slowest permeability within a depth of 40 inches:

Moderate

Permeability below a depth of 60 inches: Moderate

Depth to restrictive feature: More than 80 inches

Available water capacity to a depth of 60 inches: About

12.7 inches

Content of organic matter in the surface layer: 1 to 3

percent

Shrink-swell potential: Low

Flooding: None

Accelerated erosion: The surface layer has been

thinned by erosion.

Potential for frost action: High

Hazard of corrosion: Low for steel and moderate for

concrete

Surface runoff class: Low

Susceptibility to water erosion: Moderate

Susceptibility to wind erosion: Slight

Interpretive Groups

Land capability classification: 2e

Prime farmland status: Prime farmland

Hydric soil status: Not hydric
Rock Island County, Illinois 105

274C2—Seaton silt loam, 5 to 10 percent

slopes, eroded

Setting

Landform: Ground moraines

Position on the landform: Shoulders

Composition

Seaton and similar soils: 97 percent

Dissimilar soils: 3 percent

Minor Components

Similar soils:

• Soils that have a darker surface layer

• Soils that are more eroded

Dissimilar soils:

• The excessively drained Oakville soils on backslopes

• The well drained Tell and Thebes soils on

backslopes and shoulders

Properties and Qualities of the Seaton Soil

Parent material: Loess

Drainage class: Well drained

Slowest permeability within a depth of 40 inches:

Moderate

Permeability below a depth of 60 inches: Moderate

Depth to restrictive feature: More than 80 inches

Available water capacity to a depth of 60 inches: About

12.7 inches

Content of organic matter in the surface layer: 0.5 to

2.0 percent

Shrink-swell potential: Low

Flooding: None

Accelerated erosion: The surface layer has been

thinned by erosion.

Potential for frost action: High

Hazard of corrosion: Low for steel and moderate for

concrete

Surface runoff class: Medium

Susceptibility to water erosion: High

Susceptibility to wind erosion: Slight

Interpretive Groups

Land capability classification: 3e

Prime farmland status: Not prime farmland

Hydric soil status: Not hydric

274D2—Seaton silt loam, 10 to 18 percent

slopes, eroded

Setting

Landform: Ground moraines

Position on the landform: Backslopes

Composition

Seaton and similar soils: 98 percent

Dissimilar soils: 2 percent

Minor Components

Similar soils:

• Soils that have a darker surface layer

• Soils that are more eroded

Dissimilar soils:

• The excessively drained Oakville soils on

backslopes

Properties and Qualities of the Seaton Soil

Parent material: Loess

Drainage class: Well drained

Slowest permeability within a depth of 40 inches:

Moderate

Permeability below a depth of 60 inches: Moderate

Depth to restrictive feature: More than 80 inches

Available water capacity to a depth of 60 inches: About

12.7 inches

Content of organic matter in the surface layer: 0.5 to

2.0 percent

Shrink-swell potential: Low

Flooding: None

Accelerated erosion: The surface layer has been

thinned by erosion.

Potential for frost action: High

Hazard of corrosion: Low for steel and moderate for

concrete

Surface runoff class: Medium

Susceptibility to water erosion: High

Susceptibility to wind erosion: Slight

Interpretive Groups

Land capability classification: 4e

Prime farmland status: Not prime farmland

Hydric soil status: Not hydric

943D2—Seaton-Timula silt loams, 10 to 18

percent slopes, eroded

Setting

Landform: Loess hills

Position on the landform: Seaton—upper and middle

parts of backslopes; Timula—nose slopes and the

middle and lower parts of backslopes

Composition

Seaton and similar soils: 60 percent

Timula and similar soils: 30 percent

Dissimilar soils: 10 percent
106 Soil Survey of

Minor Components

Similar soils:

• Soils that have a darker surface layer

• Soils that are calcareous throughout

Dissimilar soils:

• The somewhat poorly drained Joy soils on summits

• The excessively drained Oakville soils on

backslopes

Properties and Qualities of the Seaton Soil

Parent material: Loess

Drainage class: Well drained

Slowest permeability within a depth of 40 inches:

Moderate

Permeability below a depth of 60 inches: Moderate

Depth to restrictive feature: More than 80 inches

Available water capacity to a depth of 60 inches: About

12.6 inches

Content of organic matter in the surface layer: 0.5 to

2.0 percent

Shrink-swell potential: Low

Flooding: None

Accelerated erosion: The surface layer has been

thinned by erosion.

Potential for frost action: High

Hazard of corrosion: Low for steel and moderate for

concrete

Surface runoff class: Medium

Susceptibility to water erosion: High

Susceptibility to wind erosion: Slight

Properties and Qualities of the Timula Soil

Parent material: Loess

Drainage class: Well drained

Slowest permeability within a depth of 40 inches:

Moderate

Permeability below a depth of 60 inches: Moderate

Depth to restrictive feature: More than 80 inches

Available water capacity to a depth of 60 inches: About

12.1 inches

Content of organic matter in the surface layer: 1 to 2

percent

Shrink-swell potential: Low

Flooding: None

Accelerated erosion: The surface layer has been

thinned by erosion.

Potential for frost action: High

Hazard of corrosion: Low for steel and low for

concrete

Surface runoff class: Medium

Susceptibility to water erosion: High

Susceptibility to wind erosion: Slight

Interpretive Groups

Land capability classification: Seaton—3e; Timula—3e

Prime farmland status: Not prime farmland

Hydric soil status: Seaton—not hydric; Timula—not

hydric

943F2—Seaton-Timula silt loams, 18 to 35

percent slopes, eroded

Setting

Landform: Ground moraines

Position on the landform: Seaton—upper and middle

parts of backslopes; Timula—nose slopes and the

middle and lower parts of backslopes

Composition

Seaton and similar soils: 45 percent

Timula and similar soils: 40 percent

Dissimilar soils: 15 percent

Minor Components

Similar soils:

• Soils that have a darker surface layer

• Soils that are calcareous throughout

Dissimilar soils:

• The somewhat poorly drained Joy soils on summits

• The well drained Marseilles soils on backslopes

• The excessively drained Oakville soils on

backslopes

Properties and Qualities of the Seaton Soil

Parent material: Loess

Drainage class: Well drained

Slowest permeability within a depth of 40 inches:

Moderate

Permeability below a depth of 60 inches: Moderate

Depth to restrictive feature: More than 80 inches

Available water capacity to a depth of 60 inches: About

12.7 inches

Content of organic matter in the surface layer: 0.5 to

2.0 percent

Shrink-swell potential: Low

Flooding: None

Accelerated erosion: The surface layer has been

thinned by erosion.

Potential for frost action: High

Hazard of corrosion: Low for steel and moderate for

concrete

Surface runoff class: High

Susceptibility to water erosion: High

Susceptibility to wind erosion: Slight
Rock Island County, Illinois 107

Properties and Qualities of the Timula Soil

Parent material: Loess

Drainage class: Well drained

Slowest permeability within a depth of 40 inches:

Moderate

Permeability below a depth of 60 inches: Moderate

Depth to restrictive feature: More than 80 inches

Available water capacity to a depth of 60 inches: About

12.2 inches

Content of organic matter in the surface layer: 1 to 2

percent

Shrink-swell potential: Low

Flooding: None

Accelerated erosion: The surface layer has been

thinned by erosion.

Potential for frost action: High

Hazard of corrosion: Low for steel and low for concrete

Surface runoff class: High

Susceptibility to water erosion: High

Susceptibility to wind erosion: Slight

Interpretive Groups

Land capability classification: Seaton—6e; Timula—6e

Prime farmland status: Not prime farmland

Hydric soil status: Seaton—not hydric; Timula—not

hydric

Sparta Series

Taxonomic classification: Sandy, mixed, mesic Entic

Hapludolls

Typical Pedon

Sparta loamy sand, 0 to 2 percent slopes; 2,150 feet

north and 1,939 feet east of the southwest corner of

sec. 20, T. 23 N., R. 10 E.; in Ogle County, Illinois;

USGS Daysville topographic quadrangle; lat. 41

degrees 57 minutes 58 seconds N. and long. 89

degrees 22 minutes 13 seconds W., NAD 27:

A1—0 to 10 inches; very dark gray (10YR 3/1) loamy

sand, grayish brown (10YR 5/2) dry; weak medium

subangular blocky structure parting to moderate

very fine granular; very friable; many fine roots

throughout; neutral; clear smooth boundary.

A2—10 to 17 inches; very dark grayish brown (10YR

3/2) loamy sand, grayish brown (10YR 5/2) dry;

very weak medium and coarse subangular blocky

structure parting to moderate very fine granular;

very friable; common fine roots throughout;

neutral; clear smooth boundary.

Bw1—17 to 24 inches; dark yellowish brown (10YR

4/4) sand; weak medium and coarse subangular

blocky structure; very friable; few fine roots

throughout; few distinct very dark grayish brown

(10YR 3/2) organic coatings and few faint dark

brown (10YR 3/3) clay bridges on sand grains;

strongly acid; clear smooth boundary.

Bw2—24 to 31 inches; brown (7.5YR 5/4) sand; weak

medium and coarse subangular blocky structure;

very friable; few fine roots throughout; moderately

acid; clear smooth boundary.

C—31 to 60 inches; reddish yellow (7.5YR 6/6) sand;

single grain; loose; moderately acid.

Range in Characteristics

Thickness of the mollic epipedon: 10 to 24 inches

Ap or A horizon:

Hue—7.5YR or 10YR

Value—2 or 3

Chroma—1 or 2

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

loamy sand

Bw horizon:

Hue—7.5YR or 10YR

Value—3 to 6

Chroma—3 to 6

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

fine sand

C horizon:

Hue—7.5YR or 10YR

Value—4 to 6

Chroma—3 to 6

Texture—fine sand or sand

88A—Sparta loamy sand, 0 to 2 percent

slopes

Setting

Landform: Stream terraces and outwash plains

Position on the landform: Summits

Composition

Sparta and similar soils: 91 percent

Dissimilar soils: 9 percent

Minor Components

Similar soils:

• Soils that have a lighter colored surface layer

• Soils that have more gravel

• Soils that have more clay in the upper part

Dissimilar soils:

• The well drained Coyne soils on summits

• Poorly drained soils in depressions

• Somewhat poorly drained soils on footslopes
108 Soil Survey of

Properties and Qualities of the Sparta Soil

Parent material: Sandy outwash

Drainage class: Excessively drained

Slowest permeability within a depth of 40 inches:

Moderately rapid

Permeability below a depth of 60 inches: Rapid

Depth to restrictive feature: More than 80 inches

Available water capacity to a depth of 60 inches: About

5 inches

Content of organic matter in the surface layer: 1 to 2

percent

Shrink-swell potential: Low

Flooding: None

Accelerated erosion: None or slight

Potential for frost action: Low

Hazard of corrosion: Low for steel and moderate for

concrete

Surface runoff class: Very low

Susceptibility to water erosion: Slight

Susceptibility to wind erosion: High

Interpretive Groups

Land capability classification: 4s

Prime farmland status: Not prime farmland

Hydric soil status: Not hydric

Strawn Series

Taxonomic classification: Fine-loamy, mixed, active,

mesic Typic Hapludalfs

Typical Pedon

Strawn loam, 18 to 60 percent slopes; 1,627 feet south

and 2,225 feet east of the northwest corner of sec. 31,

T. 16 N., R. 5 W.; in Rock Island County, Illinois; USGS

Blanchard Island topographic quadrangle; lat. 41

degrees 20 minutes 34 seconds N. and long. 90

degrees 00 minutes 27 seconds W., NAD 27:

A1—0 to 6 inches; very dark grayish brown (10YR 3/2)

loam; strong very fine and fine granular structure;

friable; slightly acid; clear smooth boundary.

A2—6 to 12 inches; brown (10YR 4/3) and very dark

grayish brown (10YR 3/2) loam; moderate fine and

medium subangular blocky structure; friable;

moderately acid; clear smooth boundary.

Bt—12 to 23 inches; dark yellowish brown (10YR 4/4)

clay loam; weak medium and coarse subangular

blocky structure; friable; discontinuous dark brown

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

gradual smooth boundary.

C—23 to 60 inches; yellowish brown (10YR 5/4) loam;

massive; violently effervescent; moderately

alkaline.

Range in Characteristics

Depth to the base of the argillic horizon: 16 to 24

inches

Depth to carbonates: 14 to 24 inches

Ap or A horizon:

Hue—10YR

Value—3 to 5

Chroma—2 to 4

Texture—loam or silt loam

E and/or BE horizon (if it occurs):

Hue—10YR

Value—3 to 5

Chroma—2 to 4

Texture—silt loam or loam

Bt and/or BC horizon:

Hue—7.5YR or 10YR

Value—4 or 5

Chroma—3 or 4

Texture—clay loam, silty clay loam, or loam

C horizon:

Hue—7.5YR, 10YR, or 2.5Y

Value—5 or 6

Chroma—2 to 6

Texture—loam, clay loam, silt loam, or fine sandy

loam

959G—Strawn-Chute complex, 18 to 60

percent slopes

Setting

Landform: Ground moraines

Position on the landform: Strawn—lower and middle

parts of backslopes; Chute—middle and upper

parts of backslopes

Composition

Strawn and similar soils: 60 percent

Chute and similar soils: 40 percent

Minor Components

Similar soils:

• Soils that are not calcareous

• Soils that have slopes of less than 18 percent

Properties and Qualities of the Strawn Soil

Parent material: Till

Drainage class: Well drained

Slowest permeability within a depth of 40 inches:

Moderate

Permeability below a depth of 60 inches: Moderate

Depth to restrictive feature: More than 80 inches
Rock Island County, Illinois 109

Available water capacity to a depth of 60 inches: About

7.3 inches

Content of organic matter in the surface layer: 1 to 3

percent

Shrink-swell potential: Moderate

Flooding: None

Accelerated erosion: None or slight

Potential for frost action: Moderate

Hazard of corrosion: Moderate for steel and moderate

for concrete

Surface runoff class: High

Susceptibility to water erosion: High

Susceptibility to wind erosion: Slight

Properties and Qualities of the Chute Soil

Parent material: Eolian sands

Drainage class: Excessively drained

Slowest permeability within a depth of 40 inches:

Rapid

Permeability below a depth of 60 inches: Very rapid

Depth to restrictive feature: More than 80 inches

Available water capacity to a depth of 60 inches: About

4.1 inches

Content of organic matter in the surface layer: 0.5 to

2.0 percent

Shrink-swell potential: Low

Flooding: None

Accelerated erosion: None or slight

Potential for frost action: Low

Hazard of corrosion: Low for steel and low for concrete

Surface runoff class: Low

Susceptibility to water erosion: Slight

Susceptibility to wind erosion: Very high

Interpretive Groups

Land capability classification: Strawn—7e; Chute—7s

Prime farmland status: Not prime farmland

Hydric soil status: Strawn—not hydric; Chute—not

hydric

Stronghurst Series

Taxonomic classification: Fine-silty, mixed,

superactive, mesic Aeric Endoaqualfs

Typical Pedon

Stronghurst silt loam, 0 to 2 percent slopes; 582 feet

south and 78 feet west of the northeast corner of sec.

23, T. 16 N., R. 8 E.; in Bureau County, Illinois; USGS

Wyanet topographic quadrangle; lat. 41 degrees 16

minutes 32 seconds N. and long. 89 degrees 31

minutes 47 seconds W., NAD 27:

Ap—0 to 8 inches; dark grayish brown (10YR 4/2) silt

loam, light brownish gray (10YR 6/2) dry;

moderate fine granular structure; very friable; few

fine roots; common fine black (5YR 2/1)

accumulations of iron and manganese; neutral;

abrupt smooth boundary.

E—8 to 13 inches; brown (10YR 5/3) silt loam;

moderate thin and very thin platy structure; friable;

few fine roots; common fine faint light brownish

gray (10YR 6/2) and common fine distinct

yellowish brown (10YR 5/6 and 5/8) redoximorphic

features; common fine black (5YR 2.5/1)

accumulations of iron and manganese; strongly

acid; clear smooth boundary.

Bt1—13 to 24 inches; yellowish brown (10YR 5/4) silty

clay loam; moderate medium subangular blocky

structure; friable; few fine roots; many distinct

grayish brown (10YR 5/2) clay films and many

distinct light gray (10YR 7/2) silt coatings on faces

of peds; common fine distinct light brownish gray

(10YR 6/2), yellowish brown (10YR 5/8), and

strong brown (7.5YR 5/6) redoximorphic features;

common fine black (10YR 2/1) accumulations of

iron and manganese; strongly acid; clear smooth

boundary.

Bt2—24 to 30 inches; yellowish brown (10YR 5/4) silty

clay loam; moderate medium prismatic structure

parting to moderate medium subangular blocky;

firm; few fine roots; many distinct grayish brown

(10YR 5/2) clay films on faces of peds; common

fine distinct light brownish gray (10YR 6/2),

yellowish brown (10YR 5/8), and strong brown

(7.5YR 5/6) redoximorphic features; common fine

black (10YR 2/1) accumulations of iron and

manganese; strongly acid; clear smooth boundary.

Bt3—30 to 38 inches; yellowish brown (10YR 5/4) silty

clay loam; moderate medium prismatic structure;

friable; few fine roots; common distinct grayish

brown (10YR 5/2) clay films on faces of peds;

common fine distinct yellowish brown (10YR 5/8),

strong brown (7.5YR 5/6), and light brownish gray

(2.5YR 6/2) redoximorphic features; common fine

black (10YR 2/1) accumulations of iron and

manganese; strongly acid; clear smooth boundary.

Bt4—38 to 47 inches; yellowish brown (10YR 5/4) silty

clay loam; moderate coarse prismatic structure;

friable; few fine roots; few distinct grayish brown

(10YR 5/2) clay films on faces of peds; common

fine distinct light brownish gray (10YR 6/2 and

2.5Y 6/2) and yellowish brown (10YR 5/8)

redoximorphic features; common fine black (10YR

2/1) accumulations of iron and manganese;

strongly acid; gradual smooth boundary.

C—47 to 60 inches; yellowish brown (10YR 5/4) silt

loam; massive; friable; common fine distinct strong
110 Soil Survey of

brown (7.5YR 5/6) and light brownish gray (2.5Y

6/2) redoximorphic features; common fine black

(10YR 2/1) accumulations of iron and manganese;

moderately acid.

Range in Characteristics

Thickness of the solum: More than 42 inches

Depth to the top of the argillic horizon: 6 to 24 inches

Ap or A horizon:

Value—3 to 6

Chroma—1 or 2

E horizon:

Value—4 to 6

Chroma—2 or 3

Bt or Btg horizon:

Hue—10YR or 2.5Y

Value—4 to 6

Chroma—1 to 4

Texture—silty clay loam or silt loam

C or Cg horizon:

Hue—10YR or 2.5Y

Value—4 to 6

Chroma—1 to 4

Texture—silt loam or silty clay loam

278A—Stronghurst silt loam, 0 to 2

percent slopes

Setting

Landform: Ground moraines

Position on the landform: Summits

Composition

Stronghurst and similar soils: 97 percent

Dissimilar soils: 3 percent

Minor Components

Similar soils:

• Soils that have a darker surface layer

• Soils that have an average of more than 35 percent

clay in the subsoil

• Soils that have a seasonal high water table within a

depth of 1 foot

• Soils that are eroded; on slopes of 2 to 5 percent

near the head of drainageways

Dissimilar soils:

• The well drained Fayette and Greenbush soils on

shoulders

• The well drained Rozetta soils on summits

Properties and Qualities of the

Stronghurst Soil

Parent material: Loess

Drainage class: Somewhat poorly drained

Slowest permeability within a depth of 40 inches:

Moderate

Permeability below a depth of 60 inches: Moderate

Depth to restrictive feature: More than 80 inches

Available water capacity to a depth of 60 inches: About

11.9 inches

Content of organic matter in the surface layer: 1 to 3

percent

Shrink-swell potential: Moderate

Depth and months of the highest apparent seasonal

high water table: 0.5 foot, January to May

Flooding: None

Accelerated erosion: None or slight

Potential for frost action: High

Hazard of corrosion: High for steel and moderate for

concrete

Surface runoff class: Low

Susceptibility to water erosion: Slight

Susceptibility to wind erosion: Slight

Interpretive Groups

Land capability classification: 2w

Prime farmland status: Prime farmland where drained

Hydric soil status: Not hydric

Sylvan Series

Taxonomic classification: Fine-silty, mixed,

superactive, mesic Typic Hapludalfs

Typical Pedon

Sylvan silt loam, 10 to 18 percent slopes; 140 feet east

and 100 feet south of the center of sec. 34, T. 17 N., R.

8 E.; in Bureau County, Illinois; USGS Buda Northeast

topographic quadrangle; lat. 41 degrees 25 minutes 55

seconds N. and long. 89 degrees 33 minutes 34

seconds W., NAD 27:

A—0 to 5 inches; very dark grayish brown (10YR 3/2)

silt loam, grayish brown (10YR 5/2) dry; moderate

medium and fine granular structure; friable; many

very fine and fine roots; neutral; clear smooth

boundary.

E—5 to 10 inches; mixed dark grayish brown (10YR

4/2) and brown (10YR 4/3) silt loam, pale brown

(10YR 6/3) dry; weak medium platy structure

parting to moderate medium granular; friable;

many very fine roots; few distinct very dark grayish
Rock Island County, Illinois 111

brown (10YR 3/2) organic coatings and light

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

peds; slightly acid; clear smooth boundary.

Bt1—10 to 15 inches; brown (10YR 4/3) silty clay

loam; moderate fine and very fine subangular

blocky structure; friable; common very fine roots;

few distinct dark brown (10YR 3/3) clay films and

very few distinct light brownish gray (10YR 6/2) silt

coatings on faces of peds; few fine dark

accumulations of iron and manganese; neutral;

clear smooth boundary.

Bt2—15 to 21 inches; dark yellowish brown (10YR 4/4)

silty clay loam; moderate medium and fine

subangular blocky structure; friable; common very

fine roots; common distinct brown (7.5YR 4/4) clay

films on faces of peds; few fine dark

accumulations of iron and manganese; slightly

acid; clear smooth boundary.

Bt3—21 to 27 inches; yellowish brown (10YR 5/4) silty

clay loam; weak medium prismatic structure

parting to moderate medium subangular blocky;

friable; common very fine roots; few distinct dark

yellowish brown (10YR 4/4) clay films and very

few distinct light brownish gray (10YR 6/2) silt

coatings on faces of peds; slightly effervescent;

few fine dark accumulations of iron and

manganese; neutral; clear smooth boundary.

Bt4—27 to 35 inches; yellowish brown (10YR 5/4) silt

loam; common fine distinct yellowish brown (10YR

5/6) and few fine distinct light brownish gray

(10YR 6/2) relict mottles; weak medium prismatic

structure parting to moderate medium subangular

blocky; friable; common very fine roots; few

prominent light gray (10YR 7/2) silt coatings and

common faint brown (7.5YR 4/4) clay films on

faces of peds; few fine dark accumulations of iron

and manganese; neutral; clear smooth boundary.

BC—35 to 40 inches; yellowish brown (10YR 5/4) silt

loam; common medium distinct light brownish gray

(10YR 6/2) mottles; weak coarse prismatic

structure parting to weak coarse subangular

blocky; friable; few very fine roots; few faint dark

yellowish brown (10YR 4/4) clay films on faces of

peds; few fine dark accumulations of iron and

manganese; few medium light-colored concretions

of calcium carbonate; slightly effervescent; slightly

alkaline; gradual wavy boundary.

C1—40 to 54 inches; light yellowish brown (2.5Y 6/4)

silt loam; common medium distinct light brownish

gray (10YR 6/2) and few fine distinct brownish

yellow (10YR 6/6) mottles; appears massive but

has planes of weakness; friable; few fine dark

accumulations of iron and manganese; common

coarse light-colored concretions of calcium

carbonate; strongly effervescent; slightly alkaline;

gradual wavy boundary.

C2—54 to 60 inches; brownish yellow (10YR 6/6) silt

loam; few medium prominent light brownish gray

(10YR 6/2) mottles; massive; friable; few fine dark

accumulations of iron and manganese; violently

effervescent; moderately alkaline.

Range in Characteristics

Depth to carbonates: 22 to 40 inches

Thickness of the solum: 22 to 40 inches

Ap or A horizon:

Value—4 to 6

Chroma—2 to 4

Texture—silt loam

E horizon:

Hue—10YR

Value—4 or 5

Chroma—2 to 4

Bt horizon:

Hue—7.5YR or 10YR

Value—4 or 5

Chroma—3 to 6

Texture—silty clay loam or silt loam

C and/or Cg horizon:

Hue—10YR or 2.5Y

Value—4 to 6

Chroma—2 to 4

Texture—silt loam or silt

19C3—Sylvan silty clay loam, 5 to 10

percent slopes, severely eroded

Setting

Landform: Ground moraines

Position on the landform: Backslopes and shoulders

Composition

Sylvan and similar soils: 92 percent

Dissimilar soils: 8 percent

Minor Components

Similar soils:

• Soils that are not calcareous within a depth of 40

inches

• Soils that are underlain by glacial till within a depth

of 60 inches

• Soils having subsurface horizons that are

calcareous within a depth of 20 inches
112 Soil Survey of

Dissimilar soils:

• The somewhat poorly drained Atlas soils on

backslopes

• The well drained Thebes soils on shoulders and

backslopes

Properties and Qualities of the Sylvan Soil

Parent material: Loess

Drainage class: Well drained

Slowest permeability within a depth of 40 inches:

Moderate

Permeability below a depth of 60 inches: Moderate

Depth to restrictive feature: More than 80 inches

Available water capacity to a depth of 60 inches: About

12 inches

Content of organic matter in the surface layer: 0.5 to

1.0 percent

Shrink-swell potential: Moderate

Flooding: None

Accelerated erosion: The surface layer is mostly

subsoil material.

Potential for frost action: High

Hazard of corrosion: Moderate for steel and moderate

for concrete

Surface runoff class: Medium

Susceptibility to water erosion: High

Susceptibility to wind erosion: Very slight

Interpretive Groups

Land capability classification: 4e

Prime farmland status: Not prime farmland

Hydric soil status: Not hydric

19D—Sylvan silt loam, 10 to 18 percent

slopes

Setting

Landform: Ground moraines

Position on the landform: Backslopes

Composition

Sylvan and similar soils: 90 percent

Dissimilar soils: 10 percent

Minor Components

Similar soils:

• Soils that are not calcareous within a depth of 40

inches

• Soils that are underlain by glacial till within a depth

of 60 inches

• Soils having subsurface horizons that are

calcareous within a depth of 20 inches

Dissimilar soils:

• The somewhat poorly drained Atlas soils on

backslopes

• The well drained Thebes soils on shoulders and

backslopes

Properties and Qualities of the Sylvan Soil

Parent material: Loess

Drainage class: Well drained

Slowest permeability within a depth of 40 inches:

Moderate

Permeability below a depth of 60 inches: Moderate

Depth to restrictive feature: More than 80 inches

Available water capacity to a depth of 60 inches: About

12.2 inches

Content of organic matter in the surface layer: 1 to 3

percent

Shrink-swell potential: Moderate

Flooding: None

Accelerated erosion: None or slight

Potential for frost action: High

Hazard of corrosion: Moderate for steel and moderate

for concrete

Surface runoff class: Medium

Susceptibility to water erosion: High

Susceptibility to wind erosion: Slight

Interpretive Groups

Land capability classification: 3e

Prime farmland status: Not prime farmland

Hydric soil status: Not hydric

19D3—Sylvan silty clay loam, 10 to 18

percent slopes, severely eroded

Setting

Landform: Ground moraines

Position on the landform: Backslopes

Composition

Sylvan and similar soils: 90 percent

Dissimilar soils: 10 percent

Minor Components

Similar soils:

• Soils that are not calcareous within a depth of 40

inches

• Soils that are underlain by glacial till within a depth

of 60 inches

• Soils having subsurface horizons that are

calcareous within a depth of 20 inches
Rock Island County, Illinois 113

Dissimilar soils:

• The somewhat poorly drained Atlas soils on

backslopes

• The well drained Thebes soils on shoulders and

backslopes

Properties and Qualities of the Sylvan Soil

Parent material: Loess

Drainage class: Well drained

Slowest permeability within a depth of 40 inches:

Moderate

Permeability below a depth of 60 inches: Moderate

Depth to restrictive feature: More than 80 inches

Available water capacity to a depth of 60 inches: About

12.2 inches

Content of organic matter in the surface layer: 0.5 to

1.0 percent

Shrink-swell potential: Moderate

Flooding: None

Accelerated erosion: The surface layer is mostly

subsoil material.

Potential for frost action: High

Hazard of corrosion: Moderate for steel and moderate

for concrete

Surface runoff class: Medium

Susceptibility to water erosion: High

Susceptibility to wind erosion: Very slight

Interpretive Groups

Land capability classification: 4e

Prime farmland status: Not prime farmland

Hydric soil status: Not hydric

19F—Sylvan silt loam, 18 to 35 percent

slopes

Setting

Landform: Ground moraines

Position on the landform: Backslopes

Composition

Sylvan and similar soils: 85 percent

Dissimilar soils: 15 percent

Minor Components

Similar soils:

• Soils that are not calcareous within a depth of 40

inches

• Soils that are underlain by glacial till within a depth

of 60 inches

• Soils having subsurface horizons that are

calcareous within a depth of 20 inches

Dissimilar soils:

• The somewhat poorly drained Atlas soils on

backslopes

• The well drained Thebes soils on shoulders and

backslopes

Properties and Qualities of the Sylvan Soil

Parent material: Loess

Drainage class: Well drained

Slowest permeability within a depth of 40 inches:

Moderate

Permeability below a depth of 60 inches: Moderate

Depth to restrictive feature: More than 80 inches

Available water capacity to a depth of 60 inches: About

12.3 inches

Content of organic matter in the surface layer: 1 to 3

percent

Shrink-swell potential: Moderate

Flooding: None

Accelerated erosion: None or slight

Potential for frost action: High

Hazard of corrosion: Moderate for steel and moderate

for concrete

Surface runoff class: High

Susceptibility to water erosion: High

Susceptibility to wind erosion: Slight

Interpretive Groups

Land capability classification: 6e

Prime farmland status: Not prime farmland

Hydric soil status: Not hydric

19F3—Sylvan silty clay loam, 18 to 35

percent slopes, severely eroded

Setting

Landform: Ground moraines

Position on the landform: Backslopes

Composition

Sylvan and similar soils: 100 percent

Minor Components

Similar soils:

• Soils that are not calcareous within a depth of 40

inches

• Soils that are underlain by glacial till within a depth

of 60 inches

• Soils having subsurface horizons that are

calcareous within a depth of 20 inches
114 Soil Survey of

Properties and Qualities of the Sylvan Soil

Parent material: Loess

Drainage class: Well drained

Slowest permeability within a depth of 40 inches:

Moderate

Permeability below a depth of 60 inches: Moderate

Depth to restrictive feature: More than 80 inches

Available water capacity to a depth of 60 inches: About

12.1 inches

Content of organic matter in the surface layer: 0.5 to

1.0 percent

Shrink-swell potential: Moderate

Flooding: None

Accelerated erosion: The surface layer is mostly

subsoil material.

Potential for frost action: High

Hazard of corrosion: Moderate for steel and moderate

for concrete

Surface runoff class: High

Susceptibility to water erosion: High

Susceptibility to wind erosion: Very slight

Interpretive Groups

Land capability classification: 6e

Prime farmland status: Not prime farmland

Hydric soil status: Not hydric

962F—Sylvan-Bold silt loams, 18 to 35

percent slopes

Setting

Landform: Loess hills

Position on the landform: Sylvan—upper and middle

parts of backslopes; Bold—nose slopes and the

middle and lower parts of backslopes

Composition

Sylvan and similar soils: 65 percent

Bold and similar soils: 30 percent

Dissimilar soils: 5 percent

Minor Components

Similar soils:

• Soils that are not calcareous within a depth of 40

inches

• Soils that are underlain by glacial till within a depth

of 60 inches

Dissimilar soils:

• The somewhat poorly drained Orion and Radford

soils on footslopes

Properties and Qualities of the Sylvan Soil

Parent material: Loess

Drainage class: Well drained

Slowest permeability within a depth of 40 inches:

Moderate

Permeability below a depth of 60 inches: Moderate

Depth to restrictive feature: More than 80 inches

Available water capacity to a depth of 60 inches: About

12.2 inches

Content of organic matter in the surface layer: 1 to 2

percent

Shrink-swell potential: Moderate

Flooding: None

Accelerated erosion: None or slight

Potential for frost action: High

Hazard of corrosion: Moderate for steel and moderate

for concrete

Surface runoff class: High

Susceptibility to water erosion: High

Susceptibility to wind erosion: Slight

Properties and Qualities of the Bold Soil

Parent material: Loess

Drainage class: Well drained

Slowest permeability within a depth of 40 inches:

Moderate

Permeability below a depth of 60 inches: Moderate

Depth to restrictive feature: More than 80 inches

Available water capacity to a depth of 60 inches: About

13.2 inches

Content of organic matter in the surface layer: 0.5 to

2.0 percent

Shrink-swell potential: Low

Flooding: None

Accelerated erosion: None or slight

Potential for frost action: High

Hazard of corrosion: Low for steel and low for concrete

Surface runoff class: High

Susceptibility to water erosion: High

Susceptibility to wind erosion: Slight

Interpretive Groups

Land capability classification: Sylvan—6e; Bold—6e

Prime farmland status: Not prime farmland

Hydric soil status: Sylvan—not hydric; Bold—not hydric

Tell Series

Taxonomic classification: Fine-silty over sandy or

sandy-skeletal, mixed, superactive, mesic Typic

Hapludalfs

Map units in which this series occurs: 917C2, 917D2
Rock Island County, Illinois 115

Typical Pedon

Tell silt loam, 0 to 2 percent slopes; 730 feet south and

2,190 feet west of the northeast corner of sec. 7, T. 18

N., R. 6 E.; in Bureau County, Illinois; USGS Yorktown

topographic quadrangle; lat. 41 degrees 34 minutes 02

seconds N. and long. 89 degrees 50 minutes 55

seconds W., NAD 27:

Ap—0 to 9 inches; dark brown (10YR 3/3) silt loam,

pale brown (10YR 6/3) dry; weak medium granular

structure; friable; few fine roots throughout;

moderately acid; abrupt smooth boundary.

E—9 to 14 inches; brown (10YR 5/3) silt loam;

moderate thin platy structure; friable; few fine roots

throughout; few faint dark grayish brown (10YR

4/2) organic coatings on faces of peds; moderately

acid; abrupt smooth boundary.

BE—14 to 20 inches; yellowish brown (10YR 5/4) silt

loam; moderate medium subangular blocky

structure; friable; few fine roots between peds; few

faint dark brown (10YR 3/3) organic coatings on

faces of peds; moderately acid; clear smooth

boundary.

Bt—20 to 30 inches; yellowish brown (10YR 5/4) silt

loam; moderate medium subangular blocky

structure; friable; few fine roots between peds;

common faint dark yellowish brown (10YR 4/4)

clay films on faces of peds; moderately acid; clear

smooth boundary.

2BC—30 to 34 inches; yellowish brown (10YR 5/4)

sandy loam; moderate medium subangular blocky

structure; friable; few fine roots between peds; few

faint dark yellowish brown (10YR 4/4) clay films on

faces of peds; moderately acid; clear smooth

boundary.

2C—34 to 60 inches; yellowish brown (10YR 5/4)

loamy sand; single grain; loose; moderately acid.

Range in Characteristics

Thickness of the loess: 20 to 36 inches

Thickness of the solum: 20 to 36 inches

Ap or A horizon:

Hue—10YR

Value—3 to 5

Chroma—2 to 5

Texture—silt loam

E horizon (if it occurs):

Hue—10YR

Value—4 or 5

Chroma—2 to 4

Texture—silt loam

Bt horizon:

Hue—7.5YR or 10YR

Value—4 or 5

Chroma—3 or 4

Texture—silty clay loam or silt loam

2B horizon:

Hue—7.5YR or 10YR

Value—3 to 5

Chroma—3 to 6

Texture—sandy loam, loam, or sandy clay loam

2C horizon:

Hue—7.5YR or 10YR

Value—4 or 5

Chroma—4 to 8

Texture—sand or loamy sand

Thebes Series

Taxonomic classification: Fine-silty, mixed,

superactive, mesic Typic Hapludalfs

Typical Pedon (Official Series Description)

Thebes silt loam, 5 to 10 percent slopes; 1,060 feet

west and 1,800 feet south of the northeast corner of

sec. 3, T. 13 N., R. 3 W.; in Logan County, Illinois;

USGS Aledo East topographic quadrangle; lat. 41

degrees 09 minutes 02 seconds N. and long. 90

degrees 42 minutes 30 seconds W., NAD 27:

Ap—0 to 9 inches; dark grayish brown (10YR 4/2) silt

loam, light brownish gray (10YR 6/2) dry;

moderate medium granular structure; friable;

slightly acid; clear smooth boundary.

Bt1—9 to 14 inches; yellowish brown (10YR 5/4) silty

clay loam; weak fine and medium subangular

blocky structure; friable; few distinct brown (10YR

5/3) clay films on faces of peds; strongly acid;

clear wavy boundary.

Bt2—14 to 26 inches; dark yellowish brown (10YR 4/4)

silty clay loam; moderate medium subangular

blocky structure; friable; common distinct brown

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

acid; clear wavy boundary.

Bt3—26 to 31 inches; dark yellowish brown (10YR 4/4)

silty clay loam; moderate medium subangular

blocky structure; friable; common distinct brown

(10YR 4/3) clay films; few medium distinct pale

brown (10YR 6/3) iron depletions and few medium

distinct strong brown (7.5YR 4/6) iron

concentrations; common dark iron-manganese

stains; slightly acid; clear wavy boundary.

2Bt4—31 to 40 inches; dark yellowish brown (10YR

4/4) loam; moderate medium subangular blocky

structure; friable; few distinct brown (10YR 4/3)

clay films on faces of peds; common coarse
116 Soil Survey of

distinct pale brown (10YR 6/3) iron depletions and

common coarse distinct strong brown (7.5YR 4/6)

iron concentrations; common dark ironmanganese stains; slightly acid; clear wavy

boundary.

2BC—40 to 50 inches; yellowish brown (10YR 5/4)

and brown (7.5YR 4/4), stratified sandy loam and

loamy sand; weak medium subangular blocky

structure; friable; few medium distinct pale brown

(10YR 6/3) iron depletions; moderately acid; clear

wavy boundary.

2C—50 to 80 inches; dark yellowish brown (10YR

4/4), stratified loamy sand and sand; massive;

friable; common medium and coarse distinct

brown (7.5YR 4/4) iron concentrations; slightly

acid.

Range in Characteristics

Thickness of loess or silty material: 20 to 40 inches

Thickness of the solum: 25 to 55 inches

Ap or A horizon:

Hue—10YR

Value—3 to 5

Chroma—1 to 4

Texture—silt loam or silty clay loam

Reaction—slightly acid or neutral

E horizon (if it occurs):

Hue—10YR

Value—4 or 5

Chroma—3 to 6

Texture—silt loam

Reaction—moderately acid or slightly acid

Bt horizon:

Hue—7.5YR or 10YR

Value—4 or 5

Chroma—3 to 6

Texture—silty clay loam or silt loam

Reaction—very strongly acid to slightly acid

2Bt horizon:

Hue—7.5YR or 10YR

Value—4 or 5

Chroma—4 to 6

Texture—loam, sandy loam, fine sandy loam,

sandy clay loam, or clay loam

Reaction—very strongly acid to slightly acid

2C horizon:

Hue—7.5YR or 10YR

Value—4 to 6

Chroma—3 to 6

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

or sand that has strata in some pedons

Reaction—very strongly acid to slightly acid

212B—Thebes silt loam, 2 to 5 percent

slopes

Setting

Landform: Ground moraines

Position on the landform: Shoulders

Composition

Thebes and similar soils: 94 percent

Dissimilar soils: 6 percent

Minor Components

Similar soils:

• Soils that have less than 20 inches of loess at the

surface

• Soils that contain more sand throughout

Dissimilar soils:

• Somewhat poorly drained soils on footslopes

• Poorly drained soils on toeslopes

Properties and Qualities of the Thebes Soil

Parent material: Loess over eolian sands

Drainage class: Well drained

Slowest permeability within a depth of 40 inches:

Moderate

Permeability below a depth of 60 inches: Rapid

Depth to restrictive feature: More than 80 inches

Available water capacity to a depth of 60 inches: About

8.9 inches

Content of organic matter in the surface layer: 2 to 3

percent

Shrink-swell potential: Moderate

Flooding: None

Accelerated erosion: None or slight

Potential for frost action: High

Hazard of corrosion: Moderate for steel and moderate

for concrete

Surface runoff class: Low

Susceptibility to water erosion: Moderate

Susceptibility to wind erosion: Slight

Interpretive Groups

Land capability classification: 2e

Prime farmland status: Prime farmland

Hydric soil status: Not hydric

Timula Series

Taxonomic classification: Coarse-silty, mixed,

superactive, mesic Typic Eutrudepts

Map units in which this series occurs: 943D2,

943F2
Rock Island County, Illinois 117

Typical Pedon

Timula silt loam, in an area of Seaton-Timula silt

loams, 18 to 30 percent slopes, eroded; 1,080 feet

east and 2,000 feet south of the northwest corner of

sec. 29, T. 22 N., R. 5 E.; in Whiteside County, Illinois;

USGS Morrison topographic quadrangle; lat. 41

degrees 52 minutes 03 seconds N. and long. 89

degrees 57 minutes 19 seconds W., NAD 27:

Ap—0 to 6 inches; brown (10YR 4/3) silt loam, pale

brown (10YR 6/3) dry; weak fine subangular

blocky structure parting to weak medium granular;

friable; few fine roots throughout; few dark

yellowish brown (10YR 4/4) fragments of subsoil

material; neutral; abrupt smooth boundary.

Bw1—6 to 12 inches; yellowish brown (10YR 5/4) silt

loam; moderate medium and fine subangular

blocky structure; friable; few fine roots between

peds; few faint brown (10YR 4/3) organic coatings

and dark yellowish brown (10YR 4/4) films on

faces of peds; neutral; clear smooth boundary.

Bw2—12 to 23 inches; yellowish brown (10YR 5/4) silt

loam; weak coarse and medium subangular blocky

structure; friable; few fine roots between peds;

common faint dark yellowish brown (10YR 4/4) films

on faces of peds; neutral; clear smooth boundary.

BC—23 to 28 inches; yellowish brown (10YR 5/4) silt

loam; weak coarse angular blocky structure;

friable; few fine distinct yellowish brown (10YR

5/6) iron oxide masses in the matrix and light

brownish gray (10YR 6/2) iron depletions; slightly

effervescent; slightly alkaline; gradual smooth

boundary.

C—28 to 60 inches; light yellowish brown (2.5Y 6/4)

silt loam; massive; friable; common fine prominent

yellowish brown (10YR 5/6) iron masses in the

matrix and common fine distinct light gray (10YR

7/2) iron depletions; few fine soft masses of iron;

strongly effervescent; slightly alkaline.

Range in Characteristics

Thickness of the solum: 18 to 40 inches

Depth to carbonates: 18 to 40 inches

Ap or A horizon:

Hue—10YR

Value—3 or 4

Chroma—1 to 3

Texture—silt loam or silt

E horizon (if it occurs):

Hue—10YR

Value—4 or 5

Chroma—2 to 4

Texture—silt loam or silt

Bw horizon:

Hue—10YR

Value—4 to 6

Chroma—3 to 6

Texture—silt loam or silt

BC, Bk, or C horizon:

Hue—10YR, 2.5Y, or 5Y

Value—5 or 6

Chroma—2 to 4

Texture—silt loam or silt

Titus Series

Taxonomic classification: Fine, smectitic, mesic Vertic

Endoaquolls

Typical Pedon

Titus silty clay loam, 0 to 2 percent slopes, frequently

flooded; 20 feet west and 10 feet north of the

southeast corner of sec. 28, T. 20 N., R. 3 E.; in Henry

County, Illinois; USGS Erie Northwest topographic

quadrangle; lat. 41 degrees 41 minutes 10 seconds N.

and long. 90 degrees 09 minutes 01 second W., NAD

27:

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

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

subangular blocky structure parting to moderate

fine granular; friable; few fine roots throughout;

neutral; abrupt smooth boundary.

A1—8 to 17 inches; very dark gray (10YR 3/1) silty

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

medium and fine subangular blocky structure;

friable; few fine roots throughout; many faint black

(10YR 2/1) organic coatings on faces of peds; few

prominent dark brown (7.5YR 3/4) concretions of

iron throughout; neutral; clear smooth boundary.

A2—17 to 22 inches; very dark gray (10YR 3/1) silty

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

medium and fine angular blocky structure; firm;

few fine roots between peds; many faint black

(10YR 2/1) organic coatings on faces of peds; few

prominent reddish brown (5YR 4/4) soft masses of

iron and few prominent dark brown (7.5YR 3/4)

concretions of iron throughout; neutral; clear

smooth boundary.

Bg1—22 to 32 inches; dark gray (10YR 4/1) silty clay;

strong medium and fine prismatic structure; firm;

few faint very dark gray (10YR 3/1) organic

coatings and few prominent dark brown (7.5YR

3/4) coatings of iron-manganese on faces of peds;

few prominent reddish brown (5YR 4/4) soft

masses of iron and dark brown (7.5YR 3/4)
118 Soil Survey of

concretions of iron in the matrix; few fine

prominent strong brown (7.5YR 5/6) iron masses

in the matrix; neutral; clear smooth boundary.

Bg2—32 to 46 inches; dark gray (10YR 4/1) silty clay

loam; moderate medium prismatic structure

parting to moderate coarse subangular blocky;

firm; few faint very dark gray (10YR 3/1) organic

coatings on faces of peds; strata of mixed dark

gray (10YR 4/1) and strong brown (7.5YR 5/6)

silty clay loam 1 inch thick at a depth of 39 inches;

common fine prominent strong brown (7.5YR 5/6)

iron masses in the matrix; neutral; clear smooth

boundary.

Bg3—46 to 52 inches; grayish brown (2.5Y 5/2) silty

clay loam; moderate coarse and medium

subangular blocky structure; friable; few distinct

pressure faces; common fine prominent strong

brown (7.5YR 4/6 and 5/6) and yellowish brown

(10YR 5/4) iron masses in the matrix; neutral;

clear smooth boundary.

BCg—52 to 60 inches; stratified grayish brown (2.5Y

5/2) silty clay loam and clay loam; weak coarse

angular blocky structure; friable; few fine distinct

dark gray (10YR 4/1) iron depletions and common

medium prominent strong brown (7.5YR 4/6) and

common fine prominent yellowish brown (10YR

5/4) iron masses in the matrix; few prominent dark

brown (7.5YR 3/4) concretions of iron throughout;

neutral; clear smooth boundary.

Cg—60 to 80 inches; stratified grayish brown (2.5Y

5/2) silty clay loam and clay loam; massive; friable;

few fine distinct dark gray (10YR 4/1) iron

depletions and common medium prominent strong

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

yellowish brown (10YR 5/4) iron oxide masses in

the matrix; few hard masses of iron; neutral.

Range in Characteristics

Thickness of the mollic epipedon: 10 to 24 inches

Thickness of the solum: 35 to 60 inches

Ap or A horizon:

Hue—10YR, 5Y, or N

Value—2 or 3

Chroma—0 to 2

Texture—silty clay loam or silty clay

Bg horizon:

Hue—10YR, 2.5Y, 5Y, or N

Value—4 to 6

Chroma—0 to 2

Texture—silty clay loam or silty clay

BCg and/or Cg horizon:

Hue—10YR, 2.5Y, or 5Y

Value—4 to 6

Chroma—1 or 2

Texture—silty clay loam; thin strata in some

pedons

8404A—Titus silty clay loam, 0 to 2

percent slopes, occasionally flooded

Setting

Landform: Flood plains

Composition

Titus and similar soils: 90 percent

Dissimilar soils: 10 percent

Minor Components

Similar soils:

• Soils that have less clay and more sand in the

subsoil

Dissimilar soils:

• Well drained soils on summits

• Soils that are calcareous

Properties and Qualities of the Titus Soil

Parent material: Clayey alluvium

Drainage class: Poorly drained

Slowest permeability within a depth of 40 inches: Slow

Permeability below a depth of 60 inches: Slow or

moderately slow

Depth to restrictive feature: More than 80 inches

Available water capacity to a depth of 60 inches: About

10.6 inches

Content of organic matter in the surface layer: 2 to 4

percent

Shrink-swell potential: High

Depth and months of the highest apparent seasonal

high water table: At the surface, January to May

Ponding depth: 0.2 foot during wet periods

Frequency and most likely period of flooding:

Occasional, November to June

Potential for frost action: High

Hazard of corrosion: High for steel and low for

concrete

Surface runoff class: Negligible

Susceptibility to water erosion: Slight

Susceptibility to wind erosion: Moderate

Interpretive Groups

Land capability classification: 3w

Prime farmland status: Prime farmland where drained

Hydric soil status: Hydric
Rock Island County, Illinois 119

Velma Series

Taxonomic classification: Fine-loamy, mixed,

superactive, mesic Typic Argiudolls

Typical Pedon

Velma silt loam, 10 to 18 percent slopes, eroded;

1,880 feet north and 260 feet east of the southwest

corner of sec. 25, T. 14 N., R. 3 E.; in Henry County,

Illinois; USGS Galva topographic quadrangle; 41

degrees 10 minutes 12 seconds N. and long. 90

degrees 06 minutes 52 seconds W., NAD 27:

Ap—0 to 10 inches; very dark gray (10YR 3/1) and

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

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

granular structure; friable; strongly acid; abrupt

smooth boundary.

AB—10 to 13 inches; dark brown (10YR 3/3) and very

dark gray (10YR 3/1) silt loam, grayish brown

(10YR 5/2) and brown (10YR 5/3) dry; weak

medium subangular blocky structure parting to

weak fine and medium granular; friable; strongly

acid; clear smooth boundary.

2Bt1—13 to 18 inches; dark yellowish brown (10YR

4/4) and yellowish brown (10YR 5/6) clay loam;

weak medium subangular blocky structure; friable;

prominent dark grayish brown (10YR 4/2) clay

films; prominent very dark grayish brown (10YR

3/2) organic coatings; strongly acid; abrupt smooth

boundary.

2Bt2—18 to 22 inches; yellowish brown (10YR 5/6 and

5/8) clay loam; weak medium subangular blocky

structure; friable; prominent brown (10YR 4/3) clay

films; strongly acid; clear smooth boundary.

2Bt3—22 to 27 inches; yellowish brown (10YR 5/4)

clay loam; moderate medium subangular blocky

structure; friable; prominent brown (10YR 4/3) clay

films; few fine faint brownish yellow (10YR 6/8)

iron accumulations; neutral; clear smooth

boundary.

2Bt4—27 to 34 inches; yellowish brown (10YR 5/4 and

5/6) clay loam; moderate medium and coarse

subangular and angular blocky structure; firm;

prominent brown (10YR 4/3) clay films; few

medium distinct light brownish gray (10YR 6/2)

iron depletions; neutral; clear smooth boundary.

2BC—34 to 44 inches; pale brown (10YR 6/3) and

yellowish brown (10YR 5/6) clay loam; moderate

medium and coarse angular blocky structure; firm;

neutral; clear smooth boundary.

2C—44 to 60 inches; yellowish brown (10YR 5/4 and

5/6) clay loam; massive; firm; few fine distinct light

gray (5Y 7/1) iron depletions; slightly alkaline.

Range in Characteristics

Thickness of the mollic epipedon: 10 to 24 inches

Thickness of the loess: 0 to 20 inches

Thickness of the solum: 42 to more than 60 inches

Depth to carbonates: 42 to 60 inches

Ap or A horizon:

Hue—10YR

Value—2 or 3

Chroma—1 to 3

Texture—silt loam or loam

Bt or 2Bt horizon:

Hue—7.5YR or 10YR

Value—4 or 5

Chroma—3 to 8

Texture—clay loam or loam

C or 2C horizon:

Hue—7.5YR or 10YR

Value—5 or 6

Chroma—3 to 8

Texture—clay loam, loam, or sandy loam

250D—Velma silt loam, 10 to 18 percent

slopes

Setting

Landform: Ground moraines

Position on the landform: Backslopes

Composition

Velma and similar soils: 97 percent

Dissimilar soils: 3 percent

Minor Components

Similar soils:

• Soils that have a lighter colored or thinner surface

layer

• Soils that have more than 20 inches of loess at the

surface

Dissimilar soils:

• Soils that have a seasonal high water table within a

depth of 60 inches

• The somewhat poorly drained Radford soils on

toeslopes

Properties and Qualities of the Velma Soil

Parent material: Till

Drainage class: Well drained

Slowest permeability within a depth of 40 inches:

Moderate

Permeability below a depth of 60 inches: Moderate
120 Soil Survey of

Depth to restrictive feature: More than 80 inches

Available water capacity to a depth of 60 inches: About

10.4 inches

Content of organic matter in the surface layer: 3 to 4

percent

Shrink-swell potential: Moderate

Flooding: None

Accelerated erosion: None or slight

Potential for frost action: Moderate

Hazard of corrosion: High for steel and high for

concrete

Surface runoff class: Medium

Susceptibility to water erosion: Moderate

Susceptibility to wind erosion: Slight

Interpretive Groups

Land capability classification: 3e

Prime farmland status: Not prime farmland

Hydric soil status: Not hydric

944D2—Velma-Coatsburg silt loams, 10 to

18 percent slopes, eroded

Setting

Landform: Ground moraines

Position on the landform: Velma—lower and middle

parts of backslopes; Coatsburg—upper and

middle parts of backslopes

Composition

Velma and similar soils: 60 percent

Coatsburg and similar soils: 40 percent

Minor Components

Similar soils:

• Soils that have a lighter colored or thinner surface

layer

• Soils that have more than 20 inches of loess at the

surface

Properties and Qualities of the Velma Soil

Parent material: Till

Drainage class: Well drained

Slowest permeability within a depth of 40 inches:

Moderate

Permeability below a depth of 60 inches: Moderate

Depth to restrictive feature: More than 80 inches

Available water capacity to a depth of 60 inches: About

10.7 inches

Content of organic matter in the surface layer: 3 to 4

percent

Shrink-swell potential: Moderate

Flooding: None

Accelerated erosion: The surface layer has been

thinned by erosion.

Potential for frost action: Moderate

Hazard of corrosion: High for steel and high for

concrete

Surface runoff class: Medium

Susceptibility to water erosion: High

Susceptibility to wind erosion: Slight

Properties and Qualities of the

Coatsburg Soil

Parent material: Till

Drainage class: Poorly drained

Slowest permeability within a depth of 40 inches: Very

slow

Permeability below a depth of 60 inches: Slow

Depth to restrictive feature: More than 80 inches

Available water capacity to a depth of 60 inches: About

8.5 inches

Content of organic matter in the surface layer: 3 to 5

percent

Shrink-swell potential: High

Depth and months of the highest perched seasonal

high water table: At the surface, January to May

Flooding: None

Accelerated erosion: The surface layer has been

thinned by erosion.

Potential for frost action: High

Hazard of corrosion: High for steel and moderate for

concrete

Surface runoff class: High

Susceptibility to water erosion: High

Susceptibility to wind erosion: Slight

Interpretive Groups

Land capability classification: Velma—3e; Coatsburg—

4e

Prime farmland status: Not prime farmland

Hydric soil status: Velma—not hydric; Coatsburg—

hydric

Wabash Series

Taxonomic classification: Fine, smectitic, mesic

Cumulic Vertic Endoaquolls

Typical Pedon

Wabash silty clay, 0 to 2 percent slopes, rarely

flooded; 2,620 feet south and 1,340 feet east of the

northwest corner of sec. 36, T. 16 N., R. 6 W.; in

Mercer County, Illinois; USGS Blanchard Island

topographic quadrangle; lat. 41 degrees 20 minutes 02

seconds N. and long. 91 degrees 01 minute 06

seconds W., NAD 27:
Rock Island County, Illinois 121

Ap—0 to 6 inches; black (2.5Y 2.5/1) silty clay;

moderate medium and coarse subangular blocky

and angular blocky structure; firm; neutral; abrupt

smooth boundary.

A—6 to 15 inches; black (2.5Y 2.5/1) silty clay;

moderate medium and coarse subangular blocky

and angular blocky structure; firm; neutral; clear

smooth boundary.

Bg1—15 to 32 inches; black (2.5Y 2.5/1) clay;

moderate medium prismatic structure parting to

moderate coarse subangular blocky; firm; olive

(5Y 4/4) root linings in the lower part; neutral; clear

smooth boundary.

Bg2—32 to 40 inches; mixed black (2.5Y 2.5/1) and

dark gray (5Y 4/1) clay; weak medium prismatic

structure parting to moderate medium

subangular blocky; firm; many fine distinct olive

(5Y 4/4) and many fine prominent brownish yellow

(10YR 6/8) redoximorphic features; common fine

prominent white (10YR 8/1) redoximorphic

features lining root channels; neutral; abrupt

smooth boundary.

Cg—40 to 63 inches; dark gray (10YR 4/1), olive

brown (2.5Y 4/4), olive gray (5Y 5/2), and olive

(5Y 5/3) clay loam; weak coarse subangular

blocky structure in the upper half; firm; many

fine faint olive (5Y 4/4) and many fine distinct

brownish yellow (10YR 6/8) redoximorphic

features; common fine prominent white (10YR

8/1) redoximorphic features lining root channels;

abundant snail shells in the upper half and few in

the lower half; moderately alkaline.

Range in Characteristics

Thickness of the mollic epipedon: More than 36

inches

Thickness of the solum: 40 to 60 inches

Ap and A horizons:

Hue—10YR to 5Y or N

Value—2 or 3

Chroma—0 to 2

Texture—silty clay or clay

Bg horizon (upper part):

Hue—10YR to 5Y or N

Value—2 or 3

Chroma—0 to 2

Bg horizon (lower part):

Hue—10YR to 5Y or N

Value—2 to 5

Chroma—0 to 2

3083A—Wabash silty clay, 0 to 2 percent

slopes, frequently flooded

Setting

Landform: Flood plains

Composition

Wabash and similar soils: 100 percent

Minor Components

Similar soils:

• Soils that have less clay in the subsoil

• Soils that have a surface layer less than 24 inches

thick

• Soils that are calcareous in all or part of the control

section

Properties and Qualities of the

Wabash Soil

Parent material: Clayey alluvium

Drainage class: Poorly drained

Slowest permeability within a depth of 40 inches: Very

slow

Permeability below a depth of 60 inches: Very slow

Depth to restrictive feature: More than 80 inches

Available water capacity to a depth of 60 inches: About

6.4 inches

Content of organic matter in the surface layer: 2 to 4

percent

Shrink-swell potential: Very high

Depth and months of the highest apparent seasonal

high water table: At the surface, January to

May

Ponding depth: 0.2 foot during wet periods

Frequency and most likely period of flooding:

Frequent, November to June

Potential for frost action: High

Hazard of corrosion: High for steel and moderate for

concrete

Surface runoff class: Negligible

Susceptibility to water erosion: Slight

Susceptibility to wind erosion: Moderate

Interpretive Groups

Land capability classification: 3w

Prime farmland status: Prime farmland where

drained and either protected from flooding or

not frequently flooded during the growing

season

Hydric soil status: Hydric
122 Soil Survey of

7083A—Wabash silty clay, 0 to 2 percent

slopes, rarely flooded

Setting

Landform: Flood plains

Composition

Wabash and similar soils: 100 percent

Minor Components

Similar soils:

• Soils that have less clay in the subsoil

• Soils that have a surface layer less than 24 inches

thick

• Soils that are calcareous in all or part of the control

section

Properties and Qualities of the Wabash Soil

Parent material: Alluvium

Drainage class: Poorly drained

Slowest permeability within a depth of 40 inches: Very

slow

Permeability below a depth of 60 inches: Very slow

Depth to restrictive feature: More than 80 inches

Available water capacity to a depth of 60 inches: About

6.4 inches

Content of organic matter in the surface layer: 2 to 4

percent

Shrink-swell potential: Very high

Depth and months of the highest apparent seasonal

high water table: At the surface, January to

May

Ponding depth: 0.3 foot during wet periods

Frequency and most likely period of flooding: Rare,

November to June

Potential for frost action: High

Hazard of corrosion: High for steel and moderate for

concrete

Surface runoff class: Negligible

Susceptibility to water erosion: Slight

Susceptibility to wind erosion: Moderate

Interpretive Groups

Land capability classification: 3w

Prime farmland status: Prime farmland where drained

Hydric soil status: Hydric

Waukee Series

Taxonomic classification: Fine-loamy over sandy or

sandy-skeletal, mixed, superactive, mesic Typic

Hapludolls

Typical Pedon

Waukee loam, 0 to 2 percent slopes; 180 feet north

and 360 feet west of the southeast corner of sec. 36, T.

21 N., R. 7 E.; in Whiteside County, Illinois; USGS

Sterling topographic quadrangle; lat. 41 degrees 45

minutes 30 seconds N. and long. 89 degrees 37

minutes 57 seconds W., NAD 27:

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

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

subangular blocky structure parting to weak fine

granular; friable; few fine roots throughout; slightly

acid; clear smooth boundary.

A—8 to 14 inches; very dark grayish brown (10YR 3/2)

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

medium subangular blocky structure parting to

moderate fine granular; friable; few fine roots

throughout; slightly acid; clear smooth boundary.

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

moderate medium subangular blocky structure;

friable; few fine roots between peds; many faint

dark brown (10YR 3/3) organic coatings on faces

of peds; slightly acid; clear smooth boundary.

Bw1—19 to 27 inches; dark yellowish brown (10YR

4/4) loam; moderate medium subangular blocky

structure; friable; few fine roots between peds; few

faint brown (10YR 4/3) coatings on faces of peds;

slightly acid; abrupt smooth boundary.

Bw2—27 to 34 inches; dark yellowish brown (10YR

4/4) sandy clay loam; weak medium subangular

blocky structure; friable; few fine roots between

peds; few faint brown (10YR 4/3) coatings on

faces of peds; about 5 to 10 percent gravel;

moderately acid; abrupt smooth boundary.

2BC—34 to 43 inches; brown (7.5YR 4/4) and

yellowish brown (10YR 5/6) loamy coarse sand;

weak medium subangular blocky structure; very

friable; about 8 to 12 percent gravel; moderately

acid; abrupt smooth boundary.

2C1—43 to 56 inches; brown (7.5YR 4/4) and

yellowish brown (10YR 5/6) coarse sand; single

grain; loose; about 5 to 10 percent gravel;

moderately acid; abrupt smooth boundary.

2C2—56 to 60 inches; yellowish brown (10YR 5/8)

sand; single grain; loose; few pebbles; slightly acid.

Range in Characteristics

Depth to sand and gravel: 24 to 40 inches

Depth to carbonates: 72 inches or more

A or Ap horizon:

Hue—10YR

Value—2
Rock Island County, Illinois 123

Chroma—1 or 2

Texture—loam or silt loam

Bw horizon:

Hue—7.5YR or 10YR

Value—3 to 5

Chroma—3 to 6

Texture—loam or sandy clay loam that has thin

strata of sandy loam in some pedons

2BC and 2C horizons:

Hue—7.5YR or 10YR

Value—4 to 6

Chroma—3 to 8

Texture—loamy sand, loamy coarse sand, coarse

sand, or the gravelly analogs of these textures;

some pedons contain thin strata with 20 to 50

percent gravel

727A—Waukee loam, 0 to 2 percent

slopes

Setting

Landform: Outwash plains

Composition

Waukee and similar soils: 90 percent

Dissimilar soils: 10 percent

Minor Components

Similar soils:

• Soils that have more sand in the upper part

• Soils that have a seasonal high water table within a

depth of 60 inches

Dissimilar soils:

• The somewhat poorly drained Hoopeston soils on

footslopes

• The poorly drained Lawler soils on toeslopes

Properties and Qualities of the Waukee Soil

Parent material: Outwash

Drainage class: Well drained

Slowest permeability within a depth of 40 inches:

Moderate

Permeability below a depth of 60 inches: Rapid

Depth to restrictive feature: More than 80 inches

Available water capacity to a depth of 60 inches: About

7.4 inches

Content of organic matter in the surface layer: 3 to 4

percent

Shrink-swell potential: Low

Flooding: None

Accelerated erosion: None or slight

Potential for frost action: Moderate

Hazard of corrosion: Low for steel and moderate for

concrete

Surface runoff class: Low

Susceptibility to water erosion: Slight

Susceptibility to wind erosion: Slight

Interpretive Groups

Land capability classification: 2s

Prime farmland status: Prime farmland

Hydric soil status: Not hydric

125

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. 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, reclamation material, roadfill, and topsoil.

They can use it to identify areas where bedrock,

wetness, or very firm soil layers can cause difficulty in

excavation.

Health officials, highway officials, engineers, and

others may also find this survey useful. The survey

can help them plan the safe disposal of wastes and

locate sites for pavements, sidewalks, campgrounds,

playgrounds, lawns, and trees and shrubs.

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, poor, and very 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 “Soil Series and 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
126 Soil Survey of

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 the

soils also is shown in the table.

The yields are based mainly on the experience and

records of farmers, conservationists, and extension

agents (Fehrenbacher and others, 1978). 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; protection from flooding; the proper

planting and seeding rates; suitable high-yielding crop

varieties; appropriate and timely tillage; control of

weeds, plant diseases, and harmful insects; favorable

soil reaction and optimum levels of nitrogen,

phosphorus, potassium, and trace elements for each

crop; effective use of crop residue, barnyard manure,

and green manure crops; and harvesting that ensures

the smallest possible loss.

The estimated yields reflect the productive capacity

of each soil for each of the principal crops. Yields are

likely to increase as new production technology is

developed. The relative productivity of a given soil

compared with that of other soils, however, is not likely

to change.

Crops other than those shown in the table are

grown in the survey area, but estimated yields are not

listed because the acreage of such crops is small. 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.

Pasture yields.—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.

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 table 6.

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 landshaping

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 forestland 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, soybeans, small grain, and hay.

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

forestland. The degree of the soil limitations affecting

the production of cultivated crops increases

progressively from class 1 to class 4. The limitations

can affect levels of production and the risk of

permanent soil deterioration caused by erosion and

other factors.

Soils in classes 5, 6, and 7 are generally not suited

to the mechanized production of commonly grown field

crops without special management, but they are

suitable for plants that provide a permanent cover,

such as grasses and trees. The severity of the soil

limitations affecting crops increases progressively

from class 5 to class 7. The local office of the

Cooperative Extension Service or the Natural

Resources Conservation Service can provide

guidance on the use of these soils as cropland.

Areas in class 8 are generally not suited to crops,

pasture, or forestland without a level of management
Rock Island County, Illinois 127

that is impractical. These areas may have potential for

other uses, such as recreational facilities and wildlife

habitat.

Capability subclasses identify the dominant kind of

limitation in the class. They are designated by adding a

small letter, e, w, s, or c, to the class numeral, for

example, 2e. The letter e shows that the main hazard

is the risk of erosion unless a close-growing plant

cover is maintained; w shows that water in or on the

soil interferes with plant growth or cultivation (in some

soils the wetness can be partly corrected by artificial

drainage); s shows that the soil is limited mainly

because it is shallow, droughty, or stony; and c, used

in only some parts of the United States, shows that the

chief limitation is climate that is very cold or very dry.

There are no subclasses in class 1 because the

soils of this class have few limitations. Class 5

contains only the subclasses indicated by w, s, or c

because the soils in class 5 are subject to little or no

erosion. They have other limitations that restrict their

use to pasture, forestland, wildlife habitat, or

recreation.

The capability classification of the soils in the

survey area is given in table 6.

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, should 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 forestland 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, are subject to

flooding, or are droughty may qualify as prime

farmland where these limitations are overcome by

drainage measures, flood control, or irrigation. Onsite

evaluation is necessary to determine the effectiveness

of corrective measures. More information about the

criteria for prime farmland can be obtained at the local

office of the Natural Resources Conservation Service.

A recent trend in land use has been the conversion

of prime farmland to urban and industrial uses. The

loss of prime farmland to other uses puts pressure on

lands that are less productive than prime farmland.

About 157,918 acres in the survey area, or nearly

55 percent of the total acreage, meets the soil

requirements for prime farmland.

The map units in the survey area that meet the

criteria for prime farmland are listed in table 7. 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 “Soil Series and Detailed Soil Map Units.”

Forestland Management and

Productivity

The tables in this section can help forest owners or

managers plan the use of soils for wood crops. They

show the potential productivity of the soils for wood

crops and rate the soils according to the limitations

that affect various aspects of forestland management.
128 Soil Survey of

Forestland Productivity

In table 8, 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 forest managers generally favor in intermediate or

improvement cuttings. They are selected on the basis

of growth rate, quality, value, and marketability. More

detailed information regarding site index is available in

the “National Forestry Manual,” which is available in

local offices of the Natural Resources Conservation

Service or on the Internet.

The volume of wood fiber, a number, is the yield

likely to be produced by the most important tree

species. This number, expressed as cubic feet per

acre per year and calculated at the age of culmination

of the mean annual increment (CMAI), indicates the

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

Trees to manage are those that are preferred for

planting, seeding, or natural regeneration and those

that remain in the stand after thinning or partial

harvest.

Forestland Management

In tables 9a, 9b, 9c, 9d, and 9e, interpretive ratings

are given for various aspects of forestland management.

The ratings are both verbal and numerical.

Some rating class terms indicate the degree to

which the soils are suited to a specified forestland

management practice. Well suited indicates that the

soil has features that are favorable for the specified

practice and has no limitations. Good performance can

be expected, and little or no maintenance is needed.

Moderately suited indicates that the soil has features

that are moderately favorable for the specified practice.

One or more soil properties are less than desirable,

and fair performance can be expected. Some

maintenance is needed. Poorly suited indicates that

the soil has one or more properties that are

unfavorable for the specified practice. Overcoming the

unfavorable properties requires special design, extra

maintenance, and costly alteration. Unsuited indicates

that the expected performance of the soil is

unacceptable for the specified practice or that extreme

measures are needed to overcome the undesirable

soil properties.

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

specified forestland management practice (1.00) and

the point at which the soil feature is not a limitation

(0.00).

Rating class terms for seedling mortality are

expressed as low, moderate, and high. Where these

terms are used, the numerical ratings indicate

gradations between the point at which the potential for

seedling mortality is highest (1.00) and the point at

which the potential is lowest (0.00).

The paragraphs that follow indicate the soil

properties considered in rating the soils for forestland

management practices. More detailed information

about the criteria used in the ratings is available in the

“National Forestry Manual,” which is available in local

offices of the Natural Resources Conservation Service

or on the Internet.

For limitations affecting construction of haul roads

and log landings, the ratings are based on slope,

flooding, permafrost, plasticity index, the hazard of soil

slippage, content of sand, the Unified classification,

rock fragments on or below the surface, depth to a

restrictive layer that is indurated, depth to a water

table, and ponding. The limitations are described as

slight, moderate, or severe. A rating of slight indicates

that no significant limitations affect construction

activities, moderate indicates that one or more

limitations can cause some difficulty in construction,

and severe indicates that one or more limitations can

make construction very difficult or very costly.

The ratings of suitability for log landings are based

on slope, rock fragments on the surface, plasticity

index, content of sand, the Unified classification, depth

to a water table, ponding, flooding, and the hazard of

soil slippage. The soils are described as well suited,

moderately suited, or poorly suited to use as log

landings.

Ratings in the column soil rutting hazard are based

on depth to a water table, rock fragments on or below

the surface, the Unified classification, depth to a

restrictive layer, and slope. Ruts form as a result of the

operation of forest equipment. The hazard is described

as slight, moderate, or severe. A rating of slight

indicates that the soil is subject to little or no rutting,

moderate indicates that rutting is likely, and severe

indicates that ruts form readily.

Ratings in the column hazard of off-road or off-trail

erosion are based on slope and on soil erodibility

factor K. The soil loss is caused by sheet or rill erosion

in off-road or off-trail areas where 50 to 75 percent of
Rock Island County, Illinois 129

the surface has been exposed by logging, grazing,

mining, or other kinds of disturbance. The hazard is

described as slight, moderate, severe, or very severe.

A rating of slight indicates that erosion is unlikely

under ordinary climatic conditions; moderate indicates

that some erosion is likely and that erosion-control

measures may be needed; severe indicates that

erosion is very likely and that erosion-control

measures, including revegetation of bare areas, are

advised; and very severe indicates that significant

erosion is expected, loss of soil productivity and offsite damage are likely, and erosion-control measures

are costly and generally impractical.

Ratings in the column hazard of erosion on roads

and trails are based on the soil erodibility factor K,

slope, and content of rock fragments. The ratings

apply to unsurfaced roads and trails. The hazard is

described as slight, moderate, or severe. A rating of

slight indicates that little or no erosion is likely;

moderate indicates that some erosion is likely, that the

roads or trails may require occasional maintenance,

and that simple erosion-control measures are needed;

and severe indicates that significant erosion is

expected, that the roads or trails require frequent

maintenance, and that costly erosion-control

measures are needed.

Ratings in the column suitability for roads (natural

surface) are based on slope, rock fragments on the

surface, plasticity index, content of sand, the Unified

classification, depth to a water table, ponding, flooding,

and the hazard of soil slippage. The ratings indicate

the suitability for using the natural surface of the soil

for roads. The soils are described as well suited,

moderately suited, or poorly suited to this use.

Ratings in the columns suitability for hand planting

and suitability for mechanical planting are based on

slope, depth to a restrictive layer, content of sand,

plasticity index, rock fragments on or below the

surface, depth to a water table, and ponding. The soils

are described as well suited, moderately suited, poorly

suited, or unsuited to these methods of planting. It is

assumed that necessary site preparation is completed

before seedlings are planted.

Ratings in the column suitability for use of

harvesting equipment are based on slope, rock

fragments on the surface, plasticity index, content of

sand, the Unified classification, depth to a water table,

and ponding. The soils are described as well suited,

moderately suited, or poorly suited to this use.

Ratings in the column suitability for mechanical site

preparation (surface) are based on slope, depth to a

restrictive layer, plasticity index, rock fragments on or

below the surface, depth to a water table, and ponding.

The soils are described as well suited, poorly suited,

or unsuited to this management activity. The part of

the soil from the surface to a depth of about 1 foot is

considered in the ratings.

Ratings in the column suitability for mechanical site

preparation (deep) are based on slope, depth to a

restrictive layer, rock fragments on or below the

surface, depth to a water table, and ponding. The soils

are described as well suited, poorly suited, or unsuited

to this management activity. The part of the soil from

the surface to a depth of about 3 feet is considered in

the ratings.

Ratings in the column potential for seedling

mortality are based on flooding, ponding, depth to a

water table, content of lime, reaction, salinity, available

water capacity, soil moisture regime, soil temperature

regime, aspect, and slope. The soils are described as

having a low, moderate, or high potential for seedling

mortality.

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

on a well prepared site and maintained in good

condition.

Table 10 shows the height that locally grown trees

and shrubs are expected to reach in 20 years on

various soils. The estimates in table 10 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.
130 Soil Survey of

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

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
Rock Island County, Illinois 131

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.

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, alfalfa, wheatgrass, and birdsfoot trefoil.

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 bluestems, indiangrass,

blueberry, goldenrod, dandelions, blackberry, 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, cherry,

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

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 tamarack.
132 Soil Survey of

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, rushes,

sedges, bulrushes, wild rice, arrowhead,

waterplantain, cattail, prairie cordgrass, bluejoint

grass, asters, and beggarticks.

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, wildlife watering developments, beaver ponds,

and other wildlife 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, thrushes, woodpeckers, owls, tree squirrels,

porcupine, raccoon, deer, and bear.

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.

Hydric Soils

In this section, hydric soils are defined and

described and the hydric soils in the survey area are

listed.

The three essential characteristics of wetlands are

hydrophytic vegetation, hydric soils, and wetland

hydrology (Cowardin and others, 1979; U.S. Army

Corps of Engineers, 1987; National Research Council,

1995; Tiner, 1985). Criteria for each of the

characteristics must be met for areas to be identified

as wetlands. Undrained hydric soils that have natural

vegetation should support a dominant population of

ecological wetland plant species. Hydric soils that

have been converted to other uses should be capable

of being restored to wetlands.

Hydric soils are defined by the National Technical

Committee for Hydric Soils (NTCHS) as soils that

formed under conditions of saturation, flooding, or

ponding long enough during the growing season to

develop anaerobic conditions in the upper part

(Federal Register, 1994). These soils are either

saturated or inundated long enough during the

growing season to support the growth and

reproduction of hydrophytic vegetation.

The NTCHS definition identifies general soil

properties that are associated with wetness. In order

to determine whether a specific soil is a hydric soil or

nonhydric soil, however, more specific information,

such as information about the depth and duration of

the water table, is needed. Thus, criteria that identify

those estimated soil properties unique to hydric soils

have been established (Federal Register, 1995). These

criteria are used to identify a phase of a soil series

that normally is associated with wetlands. The criteria

used are selected estimated soil properties that are

described in “Soil Taxonomy” (Soil Survey Staff, 1999)

and “Keys to Soil Taxonomy” (Soil Survey Staff, 1998)

and in the “Soil Survey Manual” (Soil Survey Division

Staff, 1993).

If soils are wet enough for a long enough period to

be considered hydric, they should exhibit certain

properties that can be easily observed in the field.

These visible properties are indicators of hydric soils.

The indicators used to make onsite determinations of

hydric soils in this survey area are specified in “Field

Indicators of Hydric Soils in the United States” (Hurt

and others, 1998).

Hydric soils are identified by examining and

describing the soil to a depth of about 20 inches. This

depth may be greater if determination of an

appropriate indicator so requires. It is always

recommended that soils be excavated and described

to the depth necessary for an understanding of the

redoximorphic processes. Then, using the completed

soil descriptions, soil scientists can compare the soil

features required by each indicator and specify which

indicators have been matched with the conditions

observed in the soil. The soil can be identified as a

hydric soil if at least one of the approved indicators is

present.

Map units that are made up of hydric soils may

have small areas, or inclusions, of nonhydric soils in

the higher positions on the landform, and map units

made up of nonhydric soils may have inclusions of

hydric soils in the lower positions on the landform.

Table 13 identifies hydric soils in Rock Island
Rock Island County, Illinois 133

County and also nonhydric soils that may have hydric

inclusions. This information can help in planning land

uses; however, onsite investigation is recommended to

determine whether hydric soils occur and the location

of the included hydric soils (National Research

Council, 1995; Hurt and others, 1998).

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

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 sand 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 14a and

14b 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
134 Soil Survey of

(1.00) and the point at which the soil feature is not a

limitation (0.00).

Dwellings are single-family houses of three stories

or less. For dwellings without basements, the

foundation is assumed to consist of spread footings of

reinforced concrete built on undisturbed soil at a depth

of 2 feet or at the depth of maximum frost penetration,

whichever is deeper. For dwellings with basements,

the foundation is assumed to consist of spread

footings of reinforced concrete built on undisturbed soil

at a depth of about 7 feet. The ratings for dwellings are

based on the soil properties that affect the capacity of

the soil to support a load without movement and on

the properties that affect excavation and construction

costs. The properties that affect the load-supporting

capacity include depth to a water table, ponding,

flooding, subsidence, linear extensibility (shrink-swell

potential), and compressibility. Compressibility is

inferred from the Unified classification. The properties

that affect the ease and amount of excavation include

depth to a water table, ponding, flooding, slope, depth

to bedrock or a cemented pan, hardness of bedrock or

a cemented pan, and the amount and size of rock

fragments.

Small commercial buildings are structures that are

less than three stories high and do not have

basements. The foundation is assumed to consist of

spread footings of reinforced concrete built on

undisturbed soil at a depth of 2 feet or at the depth of

maximum frost penetration, whichever is deeper. The

ratings are based on the soil properties that affect the

capacity of the soil to support a load without

movement and on the properties that affect excavation

and construction costs. The properties that affect the

load-supporting capacity include depth to a water

table, ponding, flooding, subsidence, linear

extensibility (shrink-swell potential), and

compressibility (which is inferred from the Unified

classification). The properties that affect the ease and

amount of excavation include flooding, depth to a

water table, ponding, slope, depth to bedrock or a

cemented pan, hardness of bedrock or a cemented

pan, and the amount and size of rock fragments.

Local roads and streets have an all-weather surface

and carry automobile and light truck traffic all year.

They have a subgrade of cut or fill soil material; a base

of gravel, crushed rock, or soil material stabilized by

lime or cement; and a surface of flexible material

(asphalt), rigid material (concrete), or gravel with a

binder. The ratings are 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

Table 15 shows 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
Rock Island County, Illinois 135

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).

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 60 inches is

evaluated. The ratings are based on the soil properties

that affect absorption of the effluent, construction and

maintenance of the system, and public health.

Permeability, depth to a water table, ponding, depth to

bedrock or a cemented pan, and flooding affect

absorption of the effluent. Stones and boulders, ice,

and bedrock or a cemented pan interfere with

installation. Subsidence interferes with installation and

maintenance. Excessive slope may cause lateral

seepage and surfacing of the effluent in downslope

areas.

Some soils are underlain by loose sand and gravel

or fractured bedrock at a depth of less than 4 feet

below the distribution lines. In these soils the

absorption field may not adequately filter the effluent,

particularly when the system is new. As a result, the

ground water may become contaminated.

Sewage lagoons are shallow ponds constructed to

hold sewage while aerobic bacteria decompose the

solid and liquid wastes. Lagoons should have a nearly

level floor surrounded by cut slopes or embankments

of compacted soil. Nearly impervious soil material for

the lagoon floor and sides is required to minimize

seepage and contamination of ground water.

Considered in the ratings are slope, permeability,

depth to a water table, ponding, depth to bedrock or a

cemented pan, flooding, large stones, and content of

organic matter.

Soil permeability is a critical property affecting the

suitability for sewage lagoons. Most porous soils

eventually become sealed when they are used as sites

for sewage lagoons. Until sealing occurs, however, the

hazard of pollution is severe. Soils that have a

permeability rate of more than 2 inches per hour are

too porous for the proper functioning of sewage

lagoons. In these soils, seepage of the effluent can

result in contamination of the ground water. 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
136 Soil Survey of

cover of soil material at least 2 feet thick is placed over

the completed landfill. The ratings in the table are

based on the soil properties that affect trafficability and

the risk of pollution. These properties include flooding,

permeability, depth to a water table, ponding, slope,

and depth to bedrock or a cemented pan.

Flooding is a serious problem because it can result

in pollution in areas downstream from the landfill. If

permeability is too rapid or if fractured bedrock, a

fractured cemented pan, or the water table is close to

the surface, the leachate can contaminate the water

supply. Slope is a consideration because of the extra

grading required to maintain roads in the steeper

areas of the landfill. Also, leachate may flow along the

surface of the soils in the steeper areas and cause

difficult seepage problems.

Daily cover for landfill is the soil material that is

used to cover compacted solid waste in an area

sanitary landfill. The soil material is obtained offsite,

transported to the landfill, and spread over the waste.

The ratings in the table also apply to the final cover for

a landfill. They are based on the soil properties that

affect workability, the ease of digging, and the ease of

moving and spreading the material over the refuse

daily during wet and dry periods. These properties

include soil texture, depth to a water table, ponding,

rock fragments, slope, depth to bedrock or a cemented

pan, reaction, and content of salts, sodium, or lime.

Loamy or silty soils that are free of large stones and

excess gravel are the best cover for a landfill. Clayey

soils may be sticky and difficult to spread; sandy soils

are subject to wind erosion.

Slope affects the ease of excavation and of moving

the cover material. Also, it can influence runoff,

erosion, and reclamation of the borrow area.

After soil material has been removed, the soil

material remaining in the borrow area must be thick

enough over bedrock, a cemented pan, or the water

table to permit revegetation. The soil material used as

the final cover for a landfill should be suitable for

plants. It should not have excess sodium, salts, or lime

and should not be too acid.

Construction Materials

Table 16 gives information about the soils as

potential sources of sand, topsoil, reclamation

material, and roadfill. Normal compaction, minor

processing, and other standard construction practices

are assumed.

Sand and gravel are natural aggregates suitable for

commercial use with a minimum of processing. They

are used in many kinds of construction. Specifications

for each use vary widely. Because all of the soils in

Rock Island County are poor sources of gravel, this

interpretation is not included in table 16. In the table,

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 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, the soil is considered a likely

source regardless of thickness. The assumption is that

the sand layer below the depth of observation exceeds

the minimum thickness.

The soils are rated good, fair, or poor as potential

sources of sand. A rating of good or fair means that

the source material is likely to be in or below the soil.

The bottom layer and the thickest layer of the soils are

assigned numerical ratings. These ratings indicate the

likelihood that the layer is a source of sand. The

number 0.00 indicates that the layer is a poor source.

The number 1.00 indicates that the layer is a good

source. A number between 0.00 and 1.00 indicates the

degree to which the layer is a likely source.

The soils are rated good, fair, or poor as potential

sources of topsoil, reclamation material, and roadfill.

The features that limit the soils as sources of these

materials are specified in the table. The numerical

ratings given after the specified features indicate the

degree to which the features limit the soils as sources

of topsoil, reclamation material, or roadfill. The lower

the number, the greater the limitation.

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,

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.

Reclamation material is used in areas that have
Rock Island County, Illinois 137

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).

Water Management

Tables 17a and 17b give 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; aquifer-fed excavated ponds;

constructing grassed waterways and surface drains;

constructing terraces and diversions; and tile drains

and underground outlets. 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).

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 about 5

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
138

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.

Grassed waterways and surface drains are natural

or constructed channels, generally broad and shallow,

that conduct surface water to outlets at a nonerosive

velocity. Large stones, wetness, slope, and depth to

bedrock affect the construction of grassed waterways

and surface drains. A hazard of wind erosion, a low

available water capacity, restricted rooting depth, toxic

substances such as salts and sodium, and restricted

permeability adversely affect the growth and

maintenance of the grass after construction.

Terraces and diversions are embankments or a

combination of channels and ridges constructed

across a slope to control erosion and conserve

moisture by intercepting runoff. Slope, wetness, large

stones, and depth to bedrock affect the construction of

terraces and diversions. A restricted rooting depth, a

severe hazard of wind erosion or water erosion, an

excessively coarse texture, and restricted permeability

adversely affect maintenance.

Tile drains and underground outlets are used in

some areas to remove excess subsurface and surface

water from the soil. The ratings in the table apply to the

soil in its undisturbed condition and do not include

consideration of current land use. Depth to bedrock, a

dense layer, or a cemented pan, the content of large

stones, and the content of clay influence the ease of

digging, filling, and compacting. A seasonal high water

table, ponding, and flooding may restrict the period

when excavations can be made. The slope influences

the use of machinery. Soil texture and depth to the

water table influence the resistance to sloughing.

Subsidence of organic layers influences grade and

stability of tile drains.
139

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. “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, 2001)

and the system adopted by the American Association

of State Highway and Transportation Officials

(AASHTO, 2000).

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

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)

Soil Properties
140 Soil Survey of

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 the table, 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 (Ksat ) refers to the ability of a soil to

transmit water or air. The term “permeability,” as used

in soil surveys, indicates saturated hydraulic

conductivity (Ksat ). The estimates in the table indicate

the rate of water movement, in inches per hour, when

the soil is saturated. They are based on soil

characteristics observed in the field, particularly

structure, porosity, and texture. Permeability is

considered in the design of soil drainage systems and

septic tank absorption fields.

Available water capacity refers to the quantity of

water that the soil is capable of storing for use by

plants. The capacity for water storage is given in

inches of water per inch of soil for each 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

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.

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.
Rock Island County, Illinois 141

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, 2003).

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.

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.

Organic matter is the plant and animal residue in

the soil at various stages of decomposition. In table

20, 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.

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.

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.

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,
142 Soil Survey of

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.

Also shown in table 21 is the kind of water table—

that is, apparent or perched. An apparent water table

is a thick zone of free water in the soil. It is indicated

by the level at which water stands in an uncased

borehole after adequate time is allowed for adjustment

in the surrounding soil. A perched water table is water

standing above an unsaturated zone. In places an

upper, or perched, water table is separated from a

lower one by a dry zone.

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

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. Depth to top is the vertical

distance from the soil surface to the upper boundary of

the restrictive layer.

Potential for frost action is the likelihood of upward

or lateral expansion of the soil caused by the formation

of segregated ice lenses (frost heave) and the

subsequent collapse of the soil and loss of strength on

thawing. Frost action occurs when moisture moves

into the freezing zone of the soil. Temperature, texture,

density, permeability, content of organic matter, and

depth to the water table are the most important factors

considered in evaluating the potential for frost action. It

is assumed that the soil is not insulated by vegetation
Rock Island County, Illinois 143

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.

145

American Association of State Highway and Transportation Officials (AASHTO). 2000.

Standard specifications for transportation materials and methods of sampling and

testing. 20th edition, 2 volumes.

American Society for Testing and Materials (ASTM). 2001. Standard classification of

soils for engineering purposes. ASTM Standard D 2487–00.

Acker, L.L. 1977. Soil survey of Rock Island County, Illinois.

Cowardin, L.M., V. Carter, F.C. Golet, and E.T. LaRoe. 1979. Classification of wetlands

and deep-water habitats of the United States. U.S. Fish and Wildlife Service FWS/OBS–

79/31.

Federal Register. July 13, 1994. Changes in hydric soils of the United States.

Federal Register. February 24, 1995. Hydric soils of the United States.

Fehrenbacher, J.B., R.A. Pope, I.J. Jansen, J.D. Alexander, and B.W. Ray. 1978. Soil

productivity in Illinois. University of Illinois, College of Agriculture, Cooperative

Extension Service Circular 1156.

Hurt, G.W., P.M. Whited, and R.F. Pringle, editors. Version 4.0, 1998. Field indicators of

hydric soils in the United States.

Illinois Agricultural Statistics Service. 2001. Illinois agricultural statistics annual

summary.

Jenny, Hans. 1941. Factors of soil formation.

Leighton, M.M., and J.A. Brophy. 1961. Illinoian glaciation in Illinois. Journal of Geology

69: 1–31.

National Research Council. 1995. Wetlands: Characteristics and boundaries.

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
146

Tiner, R.W., Jr. 1985. Wetlands of Delaware. U.S. Fish and Wildlife Service and

Delaware Department of Natural Resources and Environmental Control, Wetlands

Section.

United States Army Corps of Engineers, Environmental Laboratory. 1987. Corps of

Engineers wetlands delineation manual. Waterways Experiment Station Technical

Report Y–87–1.

United States Department of Agriculture. 1961. Land capability classification. Soil

Conservation Service. 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. Map revised 2004.

United States Department of Agriculture. 2003. National soil survey handbook, title

430–VI. [Online] Available: http://soils.usda.gov/technical/handbook/.

United States Department of Commerce, Bureau of the Census. 2002. 2000 census of

population and housing.

University of Illinois Agricultural Experiment Station. 1971. Loess soils of northwest

Illinois. Bulletin 739.

Willman, H.B., and J.C. Frye. 1970. Pleistocene stratigraphy of Illinois. Illinois Geological

Survey Bulletin 94.
147

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. Material, such as sand, silt, or clay,

deposited on land by streams.

Alpha,alpha-dipyridyl. A dye that when dissolved in

1N ammonium acetate is used to detect the

presence of reduced iron (Fe II) in the soil. A

positive reaction indicates a type of redoximorphic

feature.

Animal unit month (AUM). The amount of forage

required by one mature cow of approximately

1,000 pounds weight, with or without a calf, for 1

month.

Aquic conditions. Current soil wetness characterized

by saturation, reduction, and redoximorphic

features.

Argillic horizon. A subsoil horizon characterized by

an accumulation of illuvial clay.

Aspect. The direction in which a slope faces.

Available water capacity (available moisture

capacity). The capacity of soils to hold water

available for use by most plants. It is commonly

defined as the difference between the amount of

soil water at field moisture capacity and the

amount at wilting point. It is commonly expressed

as inches of water per inch of soil. The capacity, in

inches, in a 60-inch profile or to a limiting layer is

expressed as:

Very low ............................................................ 0 to 3

Low ................................................................... 3 to 6

Moderate .......................................................... 6 to 9

High ................................................................ 9 to 12

Very high .............................................. more than 12

Backslope. The position that forms the steepest and

generally linear, middle portion of a hillslope. In

profile, backslopes are commonly bounded by a

convex shoulder above and a concave footslope

below.

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.

Beach deposits. Material, such as sand and gravel,

that is generally laid down parallel to an active or

relict shoreline of a postglacial or glacial lake.

Beach ridge. A low, essentially continuous mound of

beach or beach-and-dune material accumulated

by the action of waves and currents on the

backshore of a beach, beyond the present limit of

storm waves or the reach of ordinary tides. The

ridges are roughly parallel to the shoreline and

represent successive positions of an advancing

shoreline.

Bedding planes. Fine strata, less than 5 millimeters

thick, in unconsolidated alluvial, eolian, lacustrine,

or marine sediment.

Bedrock. The solid rock that underlies the soil and

other unconsolidated material or that is exposed at

the surface.

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.

Boulders. Rock fragments larger than 2 feet (60

centimeters) in diameter.

Calcareous soil. A soil containing enough calcium

carbonate (commonly combined with magnesium

carbonate) to effervesce visibly when treated with

cold, dilute hydrochloric acid.

Capillary water. Water held as a film around soil

particles and in tiny spaces between particles.

Glossary
148 Soil Survey of

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 but have different characteristics as a

result of differences in relief and drainage.

Cation. An ion carrying a positive charge of electricity.

The common soil cations are calcium, potassium,

magnesium, sodium, and hydrogen.

Cation-exchange capacity. The total amount of

exchangeable cations that can be held by the soil,

expressed in terms of milliequivalents per 100

grams of soil at neutrality (pH 7.0) or at some

other stated pH value. The term, as applied to

soils, is synonymous with base-exchange capacity

but is more precise in meaning.

Chiseling. Tillage with an implement having one or

more soil-penetrating points that shatter or loosen

hard, compacted layers to a depth below normal

plow depth.

Clay. As a soil separate, the mineral soil particles less

than 0.002 millimeter in diameter. As a soil textural

class, soil material that is 40 percent or more clay,

less than 45 percent sand, and less than 40

percent silt.

Clay depletions. Low-chroma zones having a low

content of iron, manganese, and clay because of

the chemical reduction of iron and manganese

and the removal of iron, manganese, and clay. A

type of redoximorphic depletion.

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.

Clayey soil. Silty clay, sandy clay, or clay.

Closed depression. A low area completely

surrounded by higher ground and having no

natural outlet.

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.

COLE (coefficient of linear extensibility). See

Linear extensibility.

Colluvium. Soil material or rock fragments, or both,

moved by creep, slide, or local wash and

deposited at the base of steep slopes.

Complex slope. Irregular or variable slope. Planning

or establishing terraces, diversions, and other

water-control structures on a complex slope is

difficult.

Complex, soil. A map unit of two or more kinds of soil

or miscellaneous areas in such an intricate pattern

or so small in area that it is not practical to map

them separately at the selected scale of mapping.

The pattern and proportion of the soils or

miscellaneous areas are somewhat similar in all

areas.

Concretions. Cemented bodies with crude internal

symmetry organized around a point, a line, or a

plane. They typically take the form of concentric

layers visible to the naked eye. Calcium carbonate,

iron oxide, and manganese oxide are common

compounds making up concretions. If formed in

place, concretions of iron oxide or manganese

oxide are generally considered a type of

redoximorphic concentration.

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.

Corrosion. Soil-induced electrochemical or chemical

action that dissolves or weakens concrete or

uncoated steel.

Cover crop. A close-growing crop grown primarily to

improve and protect the soil between periods of

regular crop production, or a crop grown between

trees and vines in orchards and vineyards.
Rock Island County, Illinois 149

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.

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.

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.

Drainage class (natural). Refers to the frequency and

duration of wet periods under conditions similar to

those under which the soil formed. Alterations of

the water regime by human activities, either

through drainage or irrigation, are not a

consideration unless they have significantly

changed the morphology of the soil. Seven

classes of natural soil drainage are recognized—

excessively drained, somewhat excessively

drained, well drained, moderately well drained,

somewhat poorly drained, poorly drained, and

very poorly drained. These classes are defined in

the “Soil Survey Manual.”

Drainage, surface. Runoff, or surface flow of water,

from an area.

Drainageway. An area of ground at a lower elevation

than the surrounding ground and in which water

collects and is drained to a closed depression or

lake or to a drainageway at a lower elevation. A

drainageway may or may not have distinctly

incised channels at its upper reaches or

throughout its course.

Eluviation. The movement of material in true solution

or colloidal suspension from one place to another

within the soil. Soil horizons that have lost material

through eluviation are eluvial; those that have

received material are illuvial.

Endosaturation. A type of saturation of the soil in

which all horizons between the upper boundary of

saturation and a depth of 2 meters are saturated.

Eolian soil material. Earthy parent material

accumulated through wind action; commonly

refers to sandy material in dunes or to loess in

blankets on the surface.

Episaturation. A type of saturation indicating a

perched water table in a soil in which saturated

layers are underlain by one or more unsaturated

layers within 2 meters of the surface.

Erosion. The wearing away of the land surface by

water, wind, ice, or other geologic agents and by

such processes as gravitational creep.

Erosion (geologic). Erosion caused by geologic

processes acting over long geologic periods and

resulting in the wearing away of mountains and

the building up of such landscape features as

flood plains and coastal plains. Synonym: natural

erosion.

Erosion (accelerated). Erosion much more rapid

than geologic erosion, mainly as a result of human

or animal activities or of a catastrophe in nature,

such as a fire, that exposes the surface.

Escarpment. A relatively continuous and steep slope

or cliff breaking the general continuity of more

gently sloping land surfaces and resulting from

erosion or faulting. Synonym: scarp.

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.

Flood plain. A nearly level alluvial plain that borders a

stream and is subject to flooding unless protected

artificially.
150 Soil Survey of

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.

Footslope. The position that forms the inner, gently

inclined surface at the base of a hillslope. In

profile, footslopes are commonly concave. 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.

Frost action (in tables). Freezing and thawing of soil

moisture. Frost action can damage roads,

buildings and other structures, and plant roots.

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.

Glacial drift (geology). Pulverized and other rock

material transported by glacial ice and then

deposited. Also, the sorted and unsorted material

deposited by streams flowing from glaciers.

Glacial outwash (geology). Gravel, sand, and silt,

commonly stratified, deposited by glacial

meltwater.

Glacial till (geology). Unsorted, nonstratified glacial

drift consisting of clay, silt, sand, and boulders

transported and deposited by glacial ice.

Glaciated uplands. Land areas that were previously

covered by continental or alpine glaciers and that

are at a higher elevation than the flood plain.

Glaciofluvial deposits (geology). Material moved by

glaciers and subsequently sorted and deposited

by streams flowing from the melting ice. The

deposits are stratified and occur as kames,

eskers, deltas, and outwash plains.

Glaciolacustrine deposits (geology). Material

ranging from fine clay to sand derived from

glaciers and deposited in glacial lakes mainly by

glacial meltwater. Many deposits are interbedded

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.

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 (geology). Water filling all the unblocked

pores of the material below the water table.

Gully. A miniature valley with steep sides cut by

running water and through which water ordinarily

runs only after rainfall. The distinction between a

gully and a rill is one of depth. A gully generally is

an obstacle to farm machinery and is too deep to

be obliterated by ordinary tillage; a rill is of lesser

depth and can be smoothed over by ordinary

tillage.

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.

Head slope. A geomorphic component of hills

consisting of a laterally concave area of a hillside,

especially at the head of a drainageway. 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.

Horizon, soil. A layer of soil, approximately parallel to

the surface, having distinct characteristics

produced by soil-forming processes. In the

identification of soil horizons, an uppercase letter

represents the major horizons. Numbers or

lowercase letters that follow represent

subdivisions of the major horizons. An explanation

of the subdivisions is given in the “Soil Survey

Manual.” The major horizons of mineral soil are as

follows:

O horizon.—An organic layer of fresh and

decaying plant residue.

A horizon.—The mineral horizon at or near the

surface in which an accumulation of humified

organic matter is mixed with the mineral material.

Also, a plowed surface horizon, most of which was

originally part of a B horizon.

E horizon.—The mineral horizon in which the main

feature is loss of silicate clay, iron, aluminum, or

some combination of these.

B horizon.—The mineral horizon below an A
Rock Island County, Illinois 151

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.

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.

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. An elevated area between two

drainageways that sheds water to those

drainageways.

Intermittent stream. A stream, or reach of a stream,

that flows for prolonged periods only when it

receives ground-water discharge or long,

continued contributions from melting snow or other

surface and shallow subsurface sources.

Iron depletions. Low-chroma zones having a low

content of iron and manganese oxide because of

chemical reduction and removal, but having a clay

content similar to that of the adjacent matrix. A

type of redoximorphic depletion.

Irrigation. Application of water to soils to assist in

production of crops. Typical methods of irrigation

used in the survey area are:

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.

Sprinkler.—Water is sprayed over the soil surface

through pipes or nozzles from a pressure system.

Karst (topography). The relief of an area underlain by

limestone that dissolves in differing degrees, thus

forming numerous depressions or small basins.

Ksat. Saturated hydraulic conductivity. (See

Permeability.)

Lacustrine deposit (geology). Material deposited in

lake water and exposed when the water level is

lowered or the elevation of the land is raised.

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.

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
152 Soil Survey of

change between the water content of the clod at

1

/3- or 1/10-bar tension (33kPa or 10kPa tension)

and oven dryness. Volume change is influenced by

the amount and type of clay minerals in the soil.

The volume change is the percent change for the

whole soil. If it is expressed as a fraction, the

resulting value is COLE, coefficient of linear

extensibility.

Liquid limit. The moisture content at which the soil

passes from a plastic to a liquid state.

Loam. Soil material that is 7 to 27 percent clay

particles, 28 to 50 percent silt particles, and less

than 52 percent sand particles.

Loamy soil. Coarse sandy loam, sandy loam, fine

sandy loam, very fine sandy loam, loam, silt loam,

silt, clay loam, sandy clay loam, or silty clay loam.

Loess. Fine grained material, dominantly of silt-sized

particles, deposited by wind.

Low strength. The soil is not strong enough to

support loads.

Masses. Concentrations of substances in the soil

matrix that do not have a clearly defined boundary

with the surrounding soil material and cannot be

removed as a discrete unit. Common compounds

making up masses are calcium carbonate,

gypsum or other soluble salts, iron oxide, and

manganese oxide. Masses consisting of iron oxide

or manganese oxide generally are considered a

type of redoximorphic concentration.

Medium textured soil. Very fine sandy loam, loam,

silt loam, or silt.

Mineral soil. Soil that is mainly mineral material and

low in organic material. Its bulk density is more

than that of organic soil.

Minimum tillage. Only the tillage essential to crop

production and prevention of soil damage.

Miscellaneous area. An area that has little or no

natural soil and supports little or no vegetation.

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. An accumulation of earth, stones, and other

debris deposited by a glacier. Some types are

terminal, lateral, medial, and ground.

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.)

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.

Neutral soil. A soil having a pH value of 6.6 to 7.3.

(See Reaction, soil.)

Nodules. Cemented bodies lacking visible internal

structure. Calcium carbonate, iron oxide, and

manganese oxide are common compounds

making up nodules. If formed in place, nodules of

iron oxide or manganese oxide are considered

types of redoximorphic concentrations.

Nose slope. A geomorphic component of hills

consisting of the projecting end (laterally convex

area) of a hillside. The overland waterflow is

predominantly divergent.

Nutrient, plant. Any element taken in by a plant

essential to its growth. Plant nutrients are mainly

nitrogen, phosphorus, potassium, calcium,

magnesium, sulfur, iron, manganese, copper,

boron, and zinc obtained from the soil and carbon,

hydrogen, and oxygen obtained from the air and

water.

Organic matter. Plant and animal residue in the soil in

various stages of decomposition. The content of

organic matter in the surface layer is described as

follows:

Very low ................................... less than 0.5 percent

Low ................................................ 0.5 to 1.0 percent

Moderately low .............................. 1.0 to 2.0 percent

Moderate ....................................... 2.0 to 4.0 percent

High ............................................... 4.0 to 8.0 percent

Very high ............................... more than 8.0 percent

Outwash plain. A landform of mainly sandy or coarse
Rock Island County, Illinois 153

textured material of glaciofluvial origin. An

outwash plain is commonly smooth; where pitted,

it generally is low in relief.

Parent material. The unconsolidated organic and

mineral material in which soil forms.

Particle-size control section. The part of the soil

profile on which calculations of particle-size

classes are based. The thickness can vary

depending on specific soil properties, but for many

soils the particle-size control section is from 25 to

100 centimeters.

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 thin layer of alluvial material that

mantles an erosion surface and has been

transported to its present position from higher

lying areas of the erosion surface.

Pedon. The smallest volume that can be called “a soil.”

A pedon is three dimensional and large enough to

permit study of all horizons. Its area ranges from

about 10 to 100 square feet (1 square meter to 10

square meters), depending on the variability of the

soil.

Percolation. The 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.

Piping (in tables). Formation of subsurface tunnels or

pipelike cavities by water moving through the

soil.

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

moisture content within which the soil remains

plastic.

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.

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.

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 in pH values. A soil that tests to pH

7.0 is described as precisely neutral in reaction

because it is neither acid nor alkaline. The

degrees of acidity or alkalinity, expressed as pH

values, are:

Ultra acid .............................................. less than 3.5

Extremely acid ........................................... 3.5 to 4.4

Very strongly acid ...................................... 4.5 to 5.0

Strongly acid .............................................. 5.1 to 5.5

Moderately acid .......................................... 5.6 to 6.0

Slightly acid ................................................ 6.1 to 6.5

Neutral ........................................................ 6.6 to 7.3

Slightly alkaline .......................................... 7.4 to 7.8

Moderately alkaline .................................... 7.9 to 8.4

Strongly alkaline ........................................ 8.5 to 9.0

Very strongly alkaline ......................... 9.1 and higher

Redoximorphic concentrations. Nodules,

concretions, soft masses, pore linings, and other

features resulting from the accumulation of iron or

manganese oxide. An indication of chemical

reduction and oxidation resulting from saturation.

Redoximorphic depletions. Low-chroma zones from
154 Soil Survey of

which iron and manganese oxide or a combination

of iron and manganese oxide and clay has been

removed. These zones are indications of the

chemical reduction of iron resulting from

saturation.

Redoximorphic features. Redoximorphic

concentrations, redoximorphic depletions, reduced

matrices, a positive reaction to alpha,alphadipyridyl, and other features indicating the

chemical reduction and oxidation of iron and

manganese compounds resulting from saturation.

Reduced matrix. A soil matrix that has low chroma in

situ because of chemically reduced iron (Fe II).

The chemical reduction results from nearly

continuous wetness. The matrix undergoes a

change in hue or chroma within 30 minutes after

exposure to air as the iron is oxidized (Fe III). A

type of redoximorphic feature.

Regolith. The unconsolidated mantle of weathered

rock and soil material on the earth’s surface; the

loose earth material above the solid rock.

Relief. The elevations or inequalities of a land surface,

considered collectively.

Residuum (residual soil material). Unconsolidated,

weathered or partly weathered mineral material

that accumulated as consolidated rock

disintegrated in place.

Rill. A steep-sided channel resulting from accelerated

erosion. A rill generally is a few inches deep and

not wide enough to be an obstacle to farm

machinery.

Rock fragments. Rock or mineral fragments having a

diameter of 2 millimeters or more; for example,

pebbles, cobbles, stones, and boulders.

Rock outcrop. Exposures of bare bedrock other than

lava flows and rocklined pits.

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.

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.

Sandy soil. Sand or loamy sand.

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.

Sedimentary rock. Rock made up of particles

deposited from suspension in water. The chief

kinds of sedimentary rock are conglomerate,

formed from gravel; sandstone, formed from sand;

shale, formed from clay; and limestone, formed

from soft masses of calcium carbonate. There are

many intermediate types. Some wind-deposited

sand is consolidated into sandstone.

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 formed by the hardening of a

clay deposit.

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 position that forms the uppermost

inclined surface near the top of a hillslope. It is a

transition from backslope to summit. The surface

is dominantly convex in profile and erosional in

origin.

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. A geomorphic component of hills

consisting of a laterally planar area of a hillside.

The overland waterflow is predominantly parallel.

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.

Similar soils. Soils that share limits of diagnostic

criteria, behave and perform in a similar manner,

and have similar conservation needs or
Rock Island County, Illinois 155

management requirements for the major land uses

in the survey area.

Sinkhole. A depression in the landscape where

limestone has been dissolved.

Site index. A designation of the quality of a forest site

based on the height of the dominant stand at an

arbitrarily chosen age. For example, if the average

height attained by dominant and codominant trees

in a fully stocked stand at the age of 50 years is

75 feet, the site index is 75.

Slackwater. A still body of water in a stream.

Slickensides. Polished and grooved surfaces

produced by one mass sliding past another. In

soils, slickensides may occur at the bases of slip

surfaces on the steeper slopes; on faces of blocks,

prisms, and columns; and in swelling clayey soils,

where there is marked change in moisture

content.

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.

Slow refill (in tables). The slow filling of ponds,

resulting from restricted permeability in the soil.

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.

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.

Stream channel. The hollow bed where a natural

stream of surface water flows or may flow; the

deepest or central part of the bed, formed by the

main current and covered more or less

continuously by water.

Stream terrace. One of a series of platforms in a

stream valley, flanking and more or less parallel to

the stream channel. It originally formed near the

level of the stream and is the dissected remnants

of an abandoned flood plain, streambed, or valley

floor that were produced during a former stage of

erosion or deposition.

Stripcropping. Growing crops in a systematic

arrangement of strips or bands that provide

vegetative barriers to 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. Technically, the E horizon.

Generally refers to a leached horizon lighter in

color and lower in content of organic matter than

the overlying surface layer.

Summit. The topographically highest position of a

hillslope. It has a nearly level (planar or only

slightly convex) surface.

Surface layer. The soil ordinarily moved in tillage, or
156

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.”

Talus. Fragments of rock and other soil material

accumulated by gravity at the foot of cliffs or steep

slopes.

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. A belt of thick glacial drift that

generally marks the termination of important

glacial advances.

Terrace. An embankment, or ridge, constructed

across sloping soils on the contour or at a slight

angle to the contour. The terrace intercepts

surface runoff so that water soaks into the soil or

flows slowly to a prepared outlet. A terrace in a

field 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 (geologic). An old alluvial plain, ordinarily flat

or undulating, bordering a river, a lake, or the sea.

Texture, soil. The relative proportions of sand, silt,

and clay particles in a mass of soil. The basic

textural classes, in order of increasing proportion

of fine particles, are sand, loamy sand, sandy

loam, loam, silt loam, silt, sandy clay loam, clay

loam, silty clay loam, sandy clay, silty clay, and

clay. The sand, loamy sand, and sandy loam

classes may be further divided by specifying

“coarse,” “fine,” or “very fine.”

Thin layer (in tables). Otherwise suitable soil material

that is too thin for the specified use.

Till plain. An extensive area of nearly level to

undulating soils underlain by glacial till.

Tilth, soil. The physical condition of the soil as related

to tillage, seedbed preparation, seedling

emergence, and root penetration.

Toeslope. The position that forms the gently inclined

surface at the base of a hillslope. 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.

Understory. Any plants in a forest community that

grow to a height of less than 5 feet.

Upland (geology). Land at a higher elevation, in

general, than the alluvial plain or stream terrace;

land above the lowlands along streams.

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.

Weathering. All physical and chemical changes

produced in rocks or other deposits at or near the

earth’s surface by atmospheric agents. These

changes result in disintegration and

decomposition of the 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.

Windthrow. The uprooting and tipping over of trees by

the wind.
157

Tables
158 Soil Survey of

Table 1.--Temperature and Precipitation

(Recorded in the period 1971-2000 at Moline, Illinois)

_______________________________________________________________________________________________________________

 | |

 | 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----| 29.2 | 12.3 | 20.8 | 58 | -19 | 0 | 1.58 | 0.82| 2.25| 4 | 9.6

 | | | | | | | | | | |

 February---| 35.2 | 18.2 | 26.7 | 65 | -16 | 0 | 1.51 | .84| 2.11| 3 | 7.1

 | | | | | | | | | | |

 March------| 48.0 | 28.9 | 38.5 | 80 | 3 | 30 | 2.92 | 1.35| 4.27| 6 | 4.8

 | | | | | | | | | | |

 April------| 61.5 | 39.3 | 50.4 | 87 | 18 | 121 | 3.82 | 2.26| 5.21| 6 | 1.4

 | | | | | | | | | | |

 May--------| 73.0 | 50.0 | 61.5 | 92 | 32 | 362 | 4.25 | 2.23| 6.03| 7 | .0

 | | | | | | | | | | |

 June-------| 82.5 | 59.7 | 71.1 | 97 | 43 | 636 | 4.63 | 2.40| 6.58| 7 | .0

 | | | | | | | | | | |

 July-------| 85.9 | 64.5 | 75.2 | 99 | 49 | 784 | 4.03 | 1.94| 5.84| 6 | .0

 | | | | | | | | | | |

 August-----| 83.6 | 62.4 | 73.0 | 98 | 47 | 712 | 4.41 | 1.73| 6.66| 6 | .0

 | | | | | | | | | | |

 September--| 76.2 | 53.4 | 64.8 | 94 | 33 | 446 | 3.16 | 1.29| 4.73| 5 | .0

 | | | | | | | | | | |

 October----| 64.1 | 41.6 | 52.8 | 86 | 23 | 160 | 2.80 | 1.26| 4.11| 5 | .2

 | | | | | | | | | | |

 November---| 47.6 | 30.1 | 38.8 | 74 | 6 | 25 | 2.73 | 1.28| 3.97| 5 | 3.2

 | | | | | | | | | | |

 December---| 34.0 | 18.3 | 26.1 | 62 | -12 | 3 | 2.20 | 1.07| 3.18| 4 | 7.4

 | | | | | | | | | | |

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

 | | | | | | | | | | |

 Average---| 60.1 | 39.9 | 50.0 | --- | --- | --- | --- | ---| ---| --- | ---

 | | | | | | | | | | |

 Extreme---| 104 | -28 | --- | 100 | -22 | --- | --- | ---| ---| --- | ---

 | | | | | | | | | | |

 Total-----| --- | --- | --- | --- | --- | 3,279 | 38.04 | 31.60| 44.19| 64 | 33.7

 | | | | | | | | | | | _______________________________________________________________________________________________________________

 * 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).
Rock Island County, Illinois 159

Table 2.--Freeze Dates in Spring and Fall

(Recorded in the period 1971-2000 at Moline, Illinois)

_____________________________________________________________

 |

 | 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. 14 | Apr. 23 | May 8

 | | |

 2 years in 10 | | |

 later than-- | Apr. 10 | Apr. 19 | May 4

 | | |

 5 years in 10 | | |

 later than-- | Apr. 2 | Apr. 11 | Apr. 25

 | | |

First freezing | | |

 temperature | | |

 in fall: | | |

 | | |

 1 year in 10 | | |

 earlier than-- | Oct. 17 | Oct. 6 | Sept. 26

 | | |

 2 years in 10 | | |

 earlier than-- | Oct. 22 | Oct. 11 | Sept. 30

 | | |

 5 years in 10 | | |

 earlier than-- | Nov. 1 | Oct. 22 | Oct. 8

 | | | _____________________________________________________________

Table 3.--Growing Season

(Recorded in the period 1971-2000 at Moline,

 Illinois)

__________________________________________________

 |

 | 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 | 194 | 172 | 146

 | | |

8 years in 10 | 200 | 179 | 153

 | | |

5 years in 10 | 212 | 193 | 165

 | | |

2 years in 10 | 224 | 207 | 177

 | | |

1 year in 10 | 230 | 215 | 184

 | | | __________________________________________________
160 Soil Survey of

Table 4.--Classification of the Soils

(An asterisk in the first column indicates a taxadjunct to the series. See text for a

 description of those characteristics that are outside the range of the series)

______________________________________________________________________________________________

 |

 Soil name | Family or higher taxonomic class

 | ______________________________________________________________________________________________

 |

 Ambraw-----------|Fine-loamy, mixed, superactive, mesic Fluvaquentic Endoaquolls

 Atlas------------|Fine, smectitic, mesic Aeric Chromic Vertic Epiaqualfs

 Atterberry-------|Fine-silty, mixed, superactive, mesic Udollic Endoaqualfs

 Biggsville-------|Fine-silty, mixed, superactive, mesic Typic Hapludolls

 Birds------------|Fine-silty, mixed, superactive, nonacid, mesic Typic Fluvaquents

 Bold-------------|Coarse-silty, mixed, superactive, calcareous, mesic Typic Udorthents

 Buckhart---------|Fine-silty, mixed, superactive, mesic Oxyaquic Argiudolls

 Burkhardt--------|Sandy, mixed, mesic Typic Hapludolls

 Calco------------|Fine-silty, mixed, superactive, calcareous, mesic Cumulic Endoaquolls

 Chute------------|Mixed, mesic Typic Udipsamments

 Coatsburg--------|Fine, smectitic, mesic Vertic Argiaquolls

 Coffeen----------|Coarse-silty, mixed, superactive, mesic Fluvaquentic Hapludolls

 Coloma-----------|Mixed, mesic Lamellic Udipsamments

 Coyne------------|Coarse-loamy, mixed, active, mesic Typic Argiudolls

 Denny------------|Fine, smectitic, mesic Mollic Albaqualfs

 Dickinson--------|Coarse-loamy, mixed, superactive, mesic Typic Hapludolls

 Dorchester-------|Fine-silty, mixed, superactive, calcareous, mesic Typic Udifluvents

*Elkhart----------|Fine-silty, mixed, superactive, mesic Typic Argiudolls

 Fayette----------|Fine-silty, mixed, superactive, mesic Typic Hapludalfs

 Fluvaquents------|Fine-silty, mixed, active, nonacid, mesic Typic Fluvaquents

 Greenbush--------|Fine-silty, mixed, superactive, mesic Mollic Hapludalfs

 Hickory----------|Fine-loamy, mixed, active, mesic Typic Hapludalfs

 Hoopeston--------|Coarse-loamy, mixed, superactive, mesic Aquic Hapludolls

 Joslin-----------|Fine-loamy, mixed, superactive, mesic Typic Argiudolls

 Joy--------------|Fine-silty, mixed, superactive, mesic Aquic Hapludolls

 Landes-----------|Coarse-loamy, mixed, superactive, mesic Fluventic Hapludolls

 Lawler-----------|Fine-loamy over sandy or sandy-skeletal, mixed, superactive, mesic Aquic

 | Hapludolls

 Lawson-----------|Fine-silty, mixed, superactive, mesic Aquic Cumulic Hapludolls

 Marseilles-------|Fine-silty, mixed, active, mesic Typic Hapludalfs

 Martinsville-----|Fine-loamy, mixed, active, mesic Typic Hapludalfs

 Millington-------|Fine-loamy, mixed, superactive, calcareous, mesic Cumulic Endoaquolls

 Millsdale--------|Fine, mixed, active, mesic Typic Argiaquolls

 Moline-----------|Fine, smectitic, mesic Vertic Endoaquolls

 Muscatune--------|Fine-silty, mixed, superactive, mesic Aquic Argiudolls

 Niota------------|Fine, mixed, superactive, mesic Vertic Albaqualfs

 Oakville---------|Mixed, mesic Typic Udipsamments

 Orion------------|Coarse-silty, mixed, superactive, nonacid, mesic Aquic Udifluvents

 Orthents---------|Fine-loamy, mixed, active, nonacid, mesic Typic Udorthents

*Osco-------------|Fine-silty, mixed, superactive, mesic Typic Argiudolls

 Otter------------|Fine-silty, mixed, superactive, mesic Cumulic Endoaquolls

 Psamments--------|Mixed, mesic Udipsamments

 Raddle-----------|Fine-silty, mixed, superactive, mesic Typic Hapludolls

 Radford----------|Fine-silty, mixed, superactive, mesic Fluvaquentic Hapludolls

 Rozetta----------|Fine-silty, mixed, superactive, mesic Typic Hapludalfs

 Sable------------|Fine-silty, mixed, superactive, mesic Typic Endoaquolls

 Saude------------|Coarse-loamy over sandy or sandy-skeletal, mixed, superactive, mesic

 | Typic Hapludolls

 Sawmill----------|Fine-silty, mixed, superactive, mesic Cumulic Endoaquolls

 Seaton-----------|Fine-silty, mixed, superactive, mesic Typic Hapludalfs

 Sparta-----------|Sandy, mixed, mesic Entic Hapludolls

 Strawn-----------|Fine-loamy, mixed, active, mesic Typic Hapludalfs

 Stronghurst------|Fine-silty, mixed, superactive, mesic Aeric Endoaqualfs

 Sylvan-----------|Fine-silty, mixed, superactive, mesic Typic Hapludalfs

 Tell-------------|Fine-silty over sandy or sandy-skeletal, mixed, superactive, mesic

 | Typic Hapludalfs

 Thebes-----------|Fine-silty, mixed, superactive, mesic Typic Hapludalfs

 Timula-----------|Coarse-silty, mixed, superactive, mesic Typic Eutrudepts

 Titus------------|Fine, smectitic, mesic Vertic Endoaquolls

 |
Rock Island County, Illinois 161

Table 4.--Classification of the Soils--Continued

______________________________________________________________________________________________

 |

 Soil name | Family or higher taxonomic class

 | ______________________________________________________________________________________________

 |

 Velma------------|Fine-loamy, mixed, superactive, mesic Typic Argiudolls

 Wabash-----------|Fine, smectitic, mesic Cumulic Vertic Endoaquolls

 Waukee-----------|Fine-loamy over sandy or sandy-skeletal, mixed, superactive, mesic

 | Typic Hapludolls

 | ______________________________________________________________________________________________
162 Soil Survey of

Table 5.--Acreage and Proportionate Extent of the Soils

______________________________________________________________________________________________________________________

 | | |

 Map | Soil name | Acres |Percent

symbol | | |

 | | | ______________________________________________________________________________________________________________________

 | | |

8D2 |Hickory silt loam, 10 to 18 percent slopes, eroded--------------------------------------| 511 | 0.2

8D3 |Hickory clay loam, 10 to 18 percent slopes, severely eroded-----------------------------| 1,153 | 0.4

8F |Hickory silt loam, 18 to 35 percent slopes----------------------------------------------| 3,290 | 1.1

8F3 |Hickory clay loam, 18 to 35 percent slopes, severely eroded-----------------------------| 1,305 | 0.5

19C3 |Sylvan silty clay loam, 5 to 10 percent slopes, severely eroded-------------------------| 2,479 | 0.9

19D |Sylvan silt loam, 10 to 18 percent slopes-----------------------------------------------| 1,474 | 0.5

19D3 |Sylvan silty clay loam, 10 to 18 percent slopes, severely eroded------------------------| 8,662 | 3.0

19F |Sylvan silt loam, 18 to 35 percent slopes-----------------------------------------------| 4,586 | 1.6

19F3 |Sylvan silty clay loam, 18 to 35 percent slopes, severely eroded------------------------| 1,720 | 0.6

45A |Denny silt loam, 0 to 2 percent slopes--------------------------------------------------| 290 | 0.1

51A |Muscatune silt loam, 0 to 2 percent slopes----------------------------------------------| 14,387 | 5.0

61A |Atterberry silt loam, 0 to 2 percent slopes---------------------------------------------| 2,924 | 1.0

68A |Sable silty clay loam, 0 to 2 percent slopes--------------------------------------------| 1,554 | 0.5

86B |Osco silt loam, 2 to 5 percent slopes---------------------------------------------------| 7,336 | 2.5

86C2 |Osco silt loam, 5 to 10 percent slopes, eroded------------------------------------------| 5,193 | 1.8

87A |Dickinson sandy loam, 0 to 2 percent slopes---------------------------------------------| 3,605 | 1.2

87C2 |Dickinson sandy loam, 5 to 10 percent slopes, eroded------------------------------------| 171 | *

88A |Sparta loamy sand, 0 to 2 percent slopes------------------------------------------------| 7,349 | 2.5

172A |Hoopeston sandy loam, 0 to 2 percent slopes---------------------------------------------| 397 | 0.1

212B |Thebes silt loam, 2 to 5 percent slopes-------------------------------------------------| 651 | 0.2

250D |Velma silt loam, 10 to 18 percent slopes------------------------------------------------| 318 | 0.1

261A |Niota silt loam, 0 to 2 percent slopes--------------------------------------------------| 1,179 | 0.4

274B |Seaton silt loam, 2 to 5 percent slopes-------------------------------------------------| 1,038 | 0.4

274B2 |Seaton silt loam, 2 to 5 percent slopes, eroded-----------------------------------------| 2,102 | 0.7

274C2 |Seaton silt loam, 5 to 10 percent slopes, eroded----------------------------------------| 2,371 | 0.8

274D2 |Seaton silt loam, 10 to 18 percent slopes, eroded---------------------------------------| 993 | 0.3

275A |Joy silt loam, 0 to 2 percent slopes----------------------------------------------------| 757 | 0.3

278A |Stronghurst silt loam, 0 to 2 percent slopes--------------------------------------------| 2,667 | 0.9

279A |Rozetta silt loam, 0 to 2 percent slopes------------------------------------------------| 4,627 | 1.6

279B |Rozetta silt loam, 2 to 5 percent slopes------------------------------------------------| 190 | *

280B |Fayette silt loam, 2 to 5 percent slopes------------------------------------------------| 28,659 | 9.9

280B2 |Fayette silt loam, 2 to 5 percent slopes, eroded----------------------------------------| 3,137 | 1.1

280C2 |Fayette silt loam, 5 to 10 percent slopes, eroded---------------------------------------| 4,432 | 1.5

280C3 |Fayette silty clay loam, 5 to 10 percent slopes, severely eroded------------------------| 952 | 0.3

317A |Millsdale silty clay loam, 0 to 2 percent slopes----------------------------------------| 498 | 0.2

430A |Raddle silt loam, 0 to 2 percent slopes-------------------------------------------------| 3,526 | 1.2

430B |Raddle silt loam, 2 to 5 percent slopes-------------------------------------------------| 2,393 | 0.8

525A |Joslin loam, bedrock substratum, 0 to 2 percent slopes----------------------------------| 518 | 0.2

567C2 |Elkhart silt loam, 5 to 10 percent slopes, eroded---------------------------------------| 1,193 | 0.4

567D2 |Elkhart silt loam, 10 to 18 percent slopes, eroded--------------------------------------| 729 | 0.3

570B |Martinsville silt loam, 2 to 5 percent slopes-------------------------------------------| 738 | 0.3

570C3 |Martinsville clay loam, 5 to 10 percent slopes, severely eroded-------------------------| 287 | *

570D3 |Martinsville clay loam, 10 to 18 percent slopes, severely eroded------------------------| 440 | 0.2

647A |Lawler loam, 0 to 2 percent slopes------------------------------------------------------| 599 | 0.2

671A |Biggsville silt loam, 0 to 2 percent slopes---------------------------------------------| 983 | 0.3

671B |Biggsville silt loam, 2 to 5 percent slopes---------------------------------------------| 4,365 | 1.5

675A |Greenbush silt loam, 0 to 2 percent slopes----------------------------------------------| 2,232 | 0.8

675B |Greenbush silt loam, 2 to 5 percent slopes----------------------------------------------| 5,703 | 2.0

689B |Coloma sand, 1 to 7 percent slopes------------------------------------------------------| 276 | *

689D |Coloma sand, 7 to 15 percent slopes-----------------------------------------------------| 128 | *

705A |Buckhart silt loam, 0 to 2 percent slopes-----------------------------------------------| 1,195 | 0.4

727A |Waukee loam, 0 to 2 percent slopes------------------------------------------------------| 1,618 | 0.6

741F |Oakville fine sand, 20 to 30 percent slopes---------------------------------------------| 248 | *

763A |Joslin silt loam, 0 to 2 percent slopes-------------------------------------------------| 1,575 | 0.5

763B |Joslin silt loam, 2 to 5 percent slopes-------------------------------------------------| 328 | 0.1

764A |Coyne fine sandy loam, 0 to 2 percent slopes--------------------------------------------| 4,339 | 1.5

764C |Coyne fine sandy loam, 5 to 10 percent slopes-------------------------------------------| 483 | 0.2

774A |Saude loam, 0 to 2 percent slopes-------------------------------------------------------| 355 | 0.1

800C |Psamments, sloping----------------------------------------------------------------------| 418 | 0.1

802B |Orthents, loamy, undulating-------------------------------------------------------------| 8,190 | 2.8

864 |Pits, quarries--------------------------------------------------------------------------| 418 | 0.1

865 |Pits, gravel----------------------------------------------------------------------------| 156 | *

 | | |

 See footnote at end of table.
Rock Island County, Illinois 163

Table 5.--Acreage and Proportionate Extent of the Soils--Continued

______________________________________________________________________________________________________________________

 | | |

 Map | Soil name | Acres |Percent

symbol | | |

 | | | ______________________________________________________________________________________________________________________

 | | |

898F3 |Hickory-Sylvan complex, 18 to 35 percent slopes, severely eroded------------------------| 1,338 | 0.5

898G |Hickory-Sylvan silt loams, 35 to 60 percent slopes--------------------------------------| 8,202 | 2.8

913D2 |Marseilles-Hickory silt loams, 10 to 18 percent slopes, eroded--------------------------| 583 | 0.2

913F |Marseilles-Hickory silt loams, 18 to 35 percent slopes----------------------------------| 2,417 | 0.8

913G |Marseilles-Hickory silt loams, 35 to 60 percent slopes----------------------------------| 2,747 | 1.0

917C2 |Oakville-Tell complex, 5 to 10 percent slopes, eroded-----------------------------------| 1,214 | 0.4

917D2 |Oakville-Tell complex, 10 to 18 percent slopes, eroded----------------------------------| 1,075 | 0.4

943D2 |Seaton-Timula silt loams, 10 to 18 percent slopes, eroded-------------------------------| 1,931 | 0.7

943F2 |Seaton-Timula silt loams, 18 to 35 percent slopes, eroded-------------------------------| 2,729 | 0.9

944D2 |Velma-Coatsburg silt loams, 10 to 18 percent slopes, eroded-----------------------------| 288 | *

946D3 |Hickory-Atlas complex, 10 to 18 percent slopes, severely eroded-------------------------| 1,643 | 0.6

946F3 |Hickory-Atlas complex, 18 to 35 percent slopes, severely eroded-------------------------| 1,452 | 0.5

959G |Strawn-Chute complex, 18 to 60 percent slopes-------------------------------------------| 950 | 0.3

960D2 |Hickory-Sylvan-Fayette silt loams, 10 to 18 percent slopes, eroded----------------------| 5,146 | 1.8

960D3 |Hickory-Sylvan-Fayette complex, 10 to 18 percent slopes, severely eroded----------------| 1,589 | 0.5

960F |Hickory-Sylvan-Fayette silt loams, 18 to 30 percent slopes------------------------------| 11,782 | 4.1

961A |Burkhardt-Saude complex, 0 to 2 percent slopes------------------------------------------| 771 | 0.3

962F |Sylvan-Bold silt loams, 18 to 35 percent slopes-----------------------------------------| 1,325 | 0.5

1076A |Otter silt loam, undrained, 0 to 2 percent slopes, frequently flooded-------------------| 1,205 | 0.4

1082A |Millington silt loam, undrained, 0 to 2 percent slopes, frequently flooded--------------| 537 | 0.2

1107A |Sawmill silty clay loam, undrained, 0 to 2 percent slopes, frequently flooded-----------| 1,404 | 0.5

1334A |Birds silt loam, undrained, 0 to 2 percent slopes, frequently flooded-------------------| 18 | *

1400A |Calco silty clay loam, undrained, 0 to 2 percent slopes, frequently flooded-------------| 286 | *

1654A |Moline silty clay, undrained, 0 to 2 percent slopes, frequently flooded-----------------| 573 | 0.2

3074A |Radford silt loam, 0 to 2 percent slopes, frequently flooded----------------------------| 4,669 | 1.6

3076A |Otter silt loam, 0 to 2 percent slopes, frequently flooded------------------------------| 2,440 | 0.8

3082A |Millington silt loam, 0 to 2 percent slopes, frequently flooded-------------------------| 1,489 | 0.5

3083A |Wabash silty clay, 0 to 2 percent slopes, frequently flooded----------------------------| 395 | 0.1

3107A |Sawmill silty clay loam, 0 to 2 percent slopes, frequently flooded----------------------| 7,112 | 2.5

3239A |Dorchester silt loam, 0 to 2 percent slopes, frequently flooded-------------------------| 1,351 | 0.5

3400A |Calco silty clay loam, 0 to 2 percent slopes, frequently flooded------------------------| 1,277 | 0.4

3415A |Orion silt loam, 0 to 2 percent slopes, frequently flooded------------------------------| 9,326 | 3.2

3428A |Coffeen silt loam, 0 to 2 percent slopes, frequently flooded----------------------------| 662 | 0.2

3451A |Lawson silt loam, 0 to 2 percent slopes, frequently flooded-----------------------------| 4,487 | 1.6

3646L |Fluvaquents, loamy, 0 to 2 percent slopes, frequently flooded, long duration------------| 5,083 | 1.8

7076A |Otter silt loam, 0 to 2 percent slopes, rarely flooded----------------------------------| 343 | 0.1

7083A |Wabash silty clay, 0 to 2 percent slopes, rarely flooded--------------------------------| 565 | 0.2

7107A |Sawmill silty clay loam, 0 to 2 percent slopes, rarely flooded--------------------------| 4,137 | 1.4

7239A |Dorchester silt loam, 0 to 2 percent slopes, rarely flooded-----------------------------| 397 | 0.1

7304A |Landes fine sandy loam, 0 to 2 percent slopes, rarely flooded---------------------------| 376 | 0.1

7415A |Orion silt loam, 0 to 2 percent slopes, rarely flooded----------------------------------| 1,520 | 0.5

7428A |Coffeen silt loam, 0 to 2 percent slopes, rarely flooded--------------------------------| 5,896 | 2.0

7451A |Lawson silt loam, 0 to 2 percent slopes, rarely flooded---------------------------------| 501 | 0.2

7654A |Moline silty clay, 0 to 2 percent slopes, rarely flooded--------------------------------| 980 | 0.3

8107+ |Sawmill silt loam, 0 to 2 percent slopes, occasionally flooded, overwash----------------| 729 | 0.3

8302A |Ambraw loam, 0 to 2 percent slopes, occasionally flooded--------------------------------| 161 | *

8400A |Calco silty clay loam, 0 to 2 percent slopes, occasionally flooded----------------------| 1,167 | 0.4

8404A |Titus silty clay loam, 0 to 2 percent slopes, occasionally flooded----------------------| 48 | *

M-W |Miscellaneous water---------------------------------------------------------------------| 97 | *

W |Water-----------------------------------------------------------------------------------| 16,107 | 5.6

 | |____________|________

 | Total------------------------------------------------------------------------------| 288,910 | 100.0

 | | | ______________________________________________________________________________________________________________________

 * Less than 0.1 percent.
164 Soil Survey of

Table 6.--Land Capability and Yields per Acre of Crops and Pasture

(Yields are those that can be expected under a high level of management. They are for

 nonirrigated areas. Absence of a yield indicates that the soil is not suited to the

 crop or the crop generally is not grown on the soil)

____________________________________________________________________________________________

 | | | | | | |

 Map symbol | Land | Corn | Soybeans | Oats | Winter |Grass-legume|Grass-legume

and soil name |capability| | | | wheat | hay | pasture

 | | | | | | | ____________________________________________________________________________________________

 | | Bu | Bu | Bu | Bu | Tons | AUM*

 | | | | | | |

8D2: | | | | | | |

 Hickory------| 3e | 72 | 23 | 50 | 26 | 2.7 | 4.5

 | | | | | | |

8D3: | | | | | | |

 Hickory------| 4e | 66 | 22 | 46 | 24 | 2.5 | 4.2

 | | | | | | |

8F: | | | | | | |

 Hickory------| 6e | --- | --- | --- | --- | 2.4 | 4.0

 | | | | | | |

8F3: | | | | | | |

 Hickory------| 6e | --- | --- | --- | --- | 2.1 | 3.5

 | | | | | | |

19C3: | | | | | | |

 Sylvan-------| 4e | 97 | 30 | 57 | 46 | 4.4 | 7.3

 | | | | | | |

19D: | | | | | | |

 Sylvan-------| 3e | 104 | 33 | 61 | 49 | 4.7 | 7.8

 | | | | | | |

19D3: | | | | | | |

 Sylvan-------| 4e | 93 | 29 | 55 | 44 | 4.2 | 6.9

 | | | | | | |

19F: | | | | | | |

 Sylvan-------| 6e | --- | --- | --- | --- | 4.0 | 6.7

 | | | | | | |

19F3: | | | | | | |

 Sylvan-------| 6e | --- | --- | --- | --- | 3.5 | 5.8

 | | | | | | |

45A: | | | | | | |

 Denny--------| 3w | 113 | 37 | 62 | 47 | --- | ---

 | | | | | | |

51A: | | | | | | |

 Muscatune----| 1 | 167 | 51 | 95 | 64 | 6.2 | 10.3

 | | | | | | |

61A: | | | | | | |

 Atterberry---| 1 | 149 | 44 | 85 | 60 | 5.6 | 9.3

 | | | | | | |

68A: | | | | | | |

 Sable--------| 2w | 156 | 51 | 85 | 61 | --- | ---

 | | | | | | |

86B: | | | | | | |

 Osco---------| 2e | 153 | 46 | 88 | 61 | 5.8 | 9.7

 | | | | | | |

86C2: | | | | | | |

 Osco---------| 3e | 146 | 43 | 84 | 58 | 5.5 | 9.2

 | | | | | | |

87A: | | | | | | |

 Dickinson----| 2s | 99 | 37 | 77 | 45 | 3.9 | 6.5

 | | | | | | |

87C2: | | | | | | |

 Dickinson----| 3e | 93 | 34 | 72 | 42 | 3.7 | 6.1

 | | | | | | |

88A: | | | | | | |

 Sparta-------| 4s | 85 | 29 | 53 | 37 | 3.3 | 5.5

 | | | | | | |

 See footnote at end of table.
Rock Island County, Illinois 165

Table 6.--Land Capability and Yields per Acre of Crops and Pasture--Continued

____________________________________________________________________________________________

 | | | | | | |

 Map symbol | Land | Corn | Soybeans | Oats | Winter |Grass-legume|Grass-legume

and soil name |capability| | | | wheat | hay | pasture

 | | | | | | | ____________________________________________________________________________________________

 | | Bu | Bu | Bu | Bu | Tons | AUM*

 | | | | | | |

172A: | | | | | | |

 Hoopeston----| 2s | 105 | 33 | 70 | 47 | 4.1 | 6.8

 | | | | | | |

212B: | | | | | | |

 Thebes-------| 2e | 99 | 35 | 72 | 46 | 4.0 | 6.6

 | | | | | | |

250D: | | | | | | |

 Velma--------| 3e | 110 | 36 | 67 | 47 | 4.3 | 7.1

 | | | | | | |

261A: | | | | | | |

 Niota--------| 2w | 86 | 30 | 53 | 39 | 3.3 | 5.5

 | | | | | | |

274B: | | | | | | |

 Seaton-------| 2e | 117 | 35 | 68 | 49 | 4.7 | 7.9

 | | | | | | |

274B2: | | | | | | |

 Seaton-------| 2e | 114 | 34 | 66 | 47 | 4.6 | 7.7

 | | | | | | |

274C2: | | | | | | |

 Seaton-------| 3e | 110 | 33 | 65 | 46 | 4.5 | 7.5

 | | | | | | |

274D2: | | | | | | |

 Seaton-------| 4e | 106 | 32 | 62 | 44 | 4.3 | 7.2

 | | | | | | |

275A: | | | | | | |

 Joy----------| 1 | 161 | 48 | 92 | 63 | 6.1 | 10.2

 | | | | | | |

278A: | | | | | | |

 Stronghurst--| 2w | 138 | 42 | 76 | 55 | 5.3 | 8.8

 | | | | | | |

279A: | | | | | | |

 Rozetta------| 1 | 131 | 40 | 73 | 54 | 5.2 | 8.6

 | | | | | | |

279B: | | | | | | |

 Rozetta------| 2e | 130 | 40 | 72 | 53 | 5.1 | 8.6

 | | | | | | |

280B: | | | | | | |

 Fayette------| 2e | 128 | 39 | 72 | 52 | 5.1 | 8.6

 | | | | | | |

280B2: | | | | | | |

 Fayette------| 2e | 124 | 37 | 70 | 51 | 5.0 | 8.3

 | | | | | | |

280C2: | | | | | | |

 Fayette------| 3e | 121 | 37 | 69 | 50 | 4.9 | 8.1

 | | | | | | |

280C3: | | | | | | |

 Fayette------| 4e | 112 | 34 | 64 | 46 | 4.5 | 7.5

 | | | | | | |

317A: | | | | | | |

 Millsdale----| 3w | 113 | 41 | 65 | 47 | 4.4 | 7.3

 | | | | | | |

430A: | | | | | | |

 Raddle-------| 1 | 149 | 45 | 83 | 59 | 5.8 | 9.7

 | | | | | | |

430B: | | | | | | |

 Raddle-------| 2e | 148 | 45 | 82 | 58 | 5.7 | 9.6

 | | | | | | |

525A: | | | | | | |

 Joslin-------| 1 | 135 | 43 | 80 | 55 | 5.1 | 8.5

 | | | | | | |

 See footnote at end of table.
166 Soil Survey of

Table 6.--Land Capability and Yields per Acre of Crops and Pasture--Continued

____________________________________________________________________________________________

 | | | | | | |

 Map symbol | Land | Corn | Soybeans | Oats | Winter |Grass-legume|Grass-legume

and soil name |capability| | | | wheat | hay | pasture

 | | | | | | | ____________________________________________________________________________________________

 | | Bu | Bu | Bu | Bu | Tons | AUM*

 | | | | | | |

567C2: | | | | | | |

 Elkhart------| 3e | 124 | 37 | 69 | 50 | 4.8 | 8.0

 | | | | | | |

567D2: | | | | | | |

 Elkhart------| 3e | 119 | 35 | 66 | 48 | 4.6 | 7.7

 | | | | | | |

570B: | | | | | | |

 Martinsville | 2e | 120 | 37 | 65 | 50 | 4.8 | 7.9

 | | | | | | |

570C3: | | | | | | |

 Martinsville | 4e | 105 | 32 | 57 | 44 | 4.2 | 7.0

 | | | | | | |

570D3: | | | | | | |

 Martinsville | 4e | 100 | 31 | 55 | 42 | 4.0 | 6.6

 | | | | | | |

647A: | | | | | | |

 Lawler-------| 2s | 115 | 39 | 61 | 44 | 5.0 | 8.3

 | | | | | | |

671A: | | | | | | |

 Biggsville---| 1 | 150 | 45 | 88 | 61 | 5.6 | 9.3

 | | | | | | |

671B: | | | | | | |

 Biggsville---| 2e | 149 | 45 | 87 | 60 | 5.5 | 9.2

 | | | | | | |

675A: | | | | | | |

 Greenbush----| 1 | 148 | 43 | 83 | 59 | 5.6 | 9.3

 | | | | | | |

675B: | | | | | | |

 Greenbush----| 2e | 147 | 42 | 82 | 57 | 5.5 | 9.2

 | | | | | | |

689B: | | | | | | |

 Coloma-------| 4s | 57 | 40 | 20 | 28 | 2.4 | 4.0

 | | | | | | |

689D: | | | | | | |

 Coloma-------| 6s | --- | --- | --- | --- | --- | ---

 | | | | | | |

705A: | | | | | | |

 Buckhart-----| 1 | 158 | 48 | 90 | 63 | 6.0 | 9.9

 | | | | | | |

727A: | | | | | | |

 Waukee-------| 2s | 103 | 35 | 66 | 46 | 4.2 | 7.0

 | | | | | | |

741F: | | | | | | |

 Oakville-----| 7s | --- | --- | --- | --- | --- | ---

 | | | | | | |

763A: | | | | | | |

 Joslin-------| 1 | 135 | 43 | 80 | 55 | 5.1 | 8.5

 | | | | | | |

763B: | | | | | | |

 Joslin-------| 2e | 134 | 43 | 79 | 54 | 5.0 | 8.4

 | | | | | | |

764A: | | | | | | |

 Coyne--------| 2s | 101 | 35 | 67 | 47 | 3.8 | 6.3

 | | | | | | |

764C: | | | | | | |

 Coyne--------| 3e | 98 | 34 | 65 | 46 | --- | ---

 | | | | | | |

774A: | | | | | | |

 Saude--------| 2s | 103 | 35 | 66 | 46 | 4.2 | 7.0

 | | | | | | |

 See footnote at end of table.
Rock Island County, Illinois 167

Table 6.--Land Capability and Yields per Acre of Crops and Pasture--Continued

____________________________________________________________________________________________

 | | | | | | |

 Map symbol | Land | Corn | Soybeans | Oats | Winter |Grass-legume|Grass-legume

and soil name |capability| | | | wheat | hay | pasture

 | | | | | | | ____________________________________________________________________________________________

 | | Bu | Bu | Bu | Bu | Tons | AUM*

 | | | | | | |

800C. | | | | | | |

 Psamments | | | | | | |

 | | | | | | |

802B: | | | | | | |

 Orthents-----| 2e | --- | --- | --- | --- | --- | ---

 | | | | | | |

898F3---------| | --- | --- | --- | --- | 2.6 | 4.4

 Hickory------| 6e | | | | | |

 Sylvan-------| 6e | | | | | |

 | | | | | | |

898G----------| | --- | --- | --- | --- | --- | ---

 Hickory------| 7e | | | | | |

 Sylvan-------| 7e | | | | | |

 | | | | | | |

913D2---------| | 82 | 27 | 53 | 33 | 3.3 | 5.5

 Marseilles---| 4e | | | | | |

 Hickory------| 3e | | | | | |

 | | | | | | |

913F----------| | --- | --- | --- | --- | --- | 4.8

 Marseilles---| 7e | | | | | |

 Hickory------| 6e | | | | | |

 | | | | | | |

913G----------| | --- | --- | --- | --- | --- | ---

 Marseilles---| 7e | | | | | |

 Hickory------| 7e | | | | | |

 | | | | | | |

917C2---------| | --- | --- | --- | --- | 3.2 | 5.3

 Oakville-----| 6s | | | | | |

 Tell---------| 3e | | | | | |

 | | | | | | |

917D2---------| | --- | --- | --- | --- | 3.1 | 5.1

 Oakville-----| 6s | | | | | |

 Tell---------| 4e | | | | | |

 | | | | | | |

943D2---------| | 102 | 32 | 60 | 43 | 4.1 | 6.9

 Seaton-------| 3e | | | | | |

 Timula-------| 3e | | | | | |

 | | | | | | |

943F2---------| | --- | --- | --- | --- | 3.6 | 6.0

 Seaton-------| 6e | | | | | |

 Timula-------| 6e | | | | | |

 | | | | | | |

944D2---------| | 91 | 30 | 54 | 37 | 3.6 | 6.0

 Velma--------| 3e | | | | | |

 Coatsburg----| 4e | | | | | |

 | | | | | | |

946D3---------| | --- | --- | --- | --- | 2.2 | 3.9

 Hickory------| 4e | | | | | |

 Atlas--------| 6e | | | | | |

 | | | | | | |

946F3---------| | --- | --- | --- | --- | 1.5 | 2.6

 Hickory------| 6e | | | | | |

 Atlas--------| 6e | | | | | |

 | | | | | | |

959G----------| | --- | --- | --- | --- | --- | ---

 Strawn-------| 7e | | | | | |

 Chute--------| 7s | | | | | |

 | | | | | | |

 See footnote at end of table.
168 Soil Survey of

Table 6.--Land Capability and Yields per Acre of Crops and Pasture--Continued

____________________________________________________________________________________________

 | | | | | | |

 Map symbol | Land | Corn | Soybeans | Oats | Winter |Grass-legume|Grass-legume

and soil name |capability| | | | wheat | hay | pasture

 | | | | | | | ____________________________________________________________________________________________

 | | Bu | Bu | Bu | Bu | Tons | AUM*

 | | | | | | |

960D2---------| | 94 | 30 | 57 | 40 | 3.9 | 6.5

 Hickory------| 3e | | | | | |

 Sylvan-------| 3e | | | | | |

 Fayette------| 3e | | | | | |

 | | | | | | |

960D3---------| | 88 | 28 | 54 | 37 | 3.6 | 6.0

 Hickory------| 4e | | | | | |

 Sylvan-------| 4e | | | | | |

 Fayette------| 4e | | | | | |

 | | | | | | |

960F----------| | --- | --- | --- | --- | 3.4 | 5.7

 Hickory------| 6e | | | | | |

 Sylvan-------| 6e | | | | | |

 Fayette------| 6e | | | | | |

 | | | | | | |

961A----------| | 72 | 25 | 50 | 34 | 2.8 | 4.7

 Burkhardt----| 2s | | | | | |

 Saude--------| 2s | | | | | |

 | | | | | | |

962F----------| | --- | --- | --- | --- | 3.6 | 6.0

 Sylvan-------| 6e | | | | | |

 Bold---------| 6e | | | | | |

 | | | | | | |

1076A: | | | | | | |

 Otter--------| 5w | --- | --- | --- | --- | --- | ---

 | | | | | | |

1082A: | | | | | | |

 Millington---| 5w | --- | --- | --- | --- | --- | ---

 | | | | | | |

1107A: | | | | | | |

 Sawmill------| 5w | --- | --- | --- | --- | --- | ---

 | | | | | | |

1334A: | | | | | | |

 Birds--------| 5w | --- | --- | --- | --- | --- | ---

 | | | | | | |

1400A: | | | | | | |

 Calco--------| 5w | --- | --- | --- | --- | --- | ---

 | | | | | | |

1654A: | | | | | | |

 Moline-------| 5w | --- | --- | --- | --- | --- | ---

 | | | | | | |

3074A: | | | | | | |

 Radford------| 3w | 129 | 41 | --- | --- | 5.0 | 8.4

 | | | | | | |

3076A: | | | | | | |

 Otter--------| 3w | 129 | 41 | 62 | 44 | 4.2 | 7.1

 | | | | | | |

3082A: | | | | | | |

 Millington---| 3w | 120 | 37 | --- | --- | 4.1 | 6.9

 | | | | | | |

3083A: | | | | | | |

 Wabash-------| 3w | 95 | 32 | --- | --- | 3.3 | 5.6

 | | | | | | |

3107A: | | | | | | |

 Sawmill------| 3w | 132 | 42 | --- | --- | 5.0 | 8.3

 | | | | | | |

3239A: | | | | | | |

 Dorchester---| 2w | 119 | 39 | --- | --- | 4.8 | 8.0

 | | | | | | |

 See footnote at end of table.
Rock Island County, Illinois 169

Table 6.--Land Capability and Yields per Acre of Crops and Pasture--Continued

____________________________________________________________________________________________

 | | | | | | |

 Map symbol | Land | Corn | Soybeans | Oats | Winter |Grass-legume|Grass-legume

and soil name |capability| | | | wheat | hay | pasture

 | | | | | | | ____________________________________________________________________________________________

 | | Bu | Bu | Bu | Bu | Tons | AUM*

 | | | | | | |

3400A: | | | | | | |

 Calco--------| 2w | 119 | 40 | --- | --- | 4.2 | 7.0

 | | | | | | |

3415A: | | | | | | |

 Orion--------| 3w | 80 | 26 | --- | --- | 4.2 | 7.0

 | | | | | | |

3428A: | | | | | | |

 Coffeen------| 2w | 137 | 42 | --- | --- | 5.2 | 8.7

 | | | | | | |

3451A: | | | | | | |

 Lawson-------| 3w | 145 | 43 | 77 | 56 | 5.1 | 8.6

 | | | | | | |

3646L: | | | | | | |

 Fluvaquents--| 5w | --- | --- | --- | --- | --- | ---

 | | | | | | |

7076A: | | | | | | |

 Otter--------| 2w | 143 | 46 | 69 | 49 | 4.7 | 7.8

 | | | | | | |

7083A: | | | | | | |

 Wabash-------| 3w | 106 | 35 | 55 | 43 | 3.7 | 6.2

 | | | | | | |

7107A: | | | | | | |

 Sawmill------| 2w | 147 | 47 | 76 | 54 | 5.5 | 9.2

 | | | | | | |

7239A: | | | | | | |

 Dorchester---| 1 | 132 | 43 | 76 | 54 | 5.3 | 8.8

 | | | | | | |

7304A: | | | | | | |

 Landes-------| 2s | 99 | 34 | 62 | 45 | 3.7 | 6.2

 | | | | | | |

7415A: | | | | | | |

 Orion--------| 2w | 135 | 43 | 72 | 52 | 4.7 | 7.8

 | | | | | | |

7428A: | | | | | | |

 Coffeen------| 1 | 152 | 47 | 79 | 57 | 5.8 | 9.7

 | | | | | | |

7451A: | | | | | | |

 Lawson-------| 2w | 161 | 48 | 86 | 62 | 5.7 | 9.5

 | | | | | | |

7654A: | | | | | | |

 Moline-------| 3w | 115 | 39 | 64 | 47 | 4.2 | 7.0

 | | | | | | |

8107+: | | | | | | |

 Sawmill------| 2w | 147 | 47 | 76 | 54 | 5.5 | 9.2

 | | | | | | |

8302A: | | | | | | |

 Ambraw-------| 2w | 132 | 43 | 70 | 52 | 4.6 | 7.7

 | | | | | | |

8400A: | | | | | | |

 Calco--------| 2w | 132 | 44 | 72 | 52 | 4.7 | 7.8

 | | | | | | |

8404A: | | | | | | |

 Titus--------| 3w | 125 | 42 | 68 | 52 | 4.3 | 7.2

 | | | | | | | ____________________________________________________________________________________________

 * Animal unit month: 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.
170 Soil Survey of

Table 7.--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 |

 | _______________________________________________________________________________________________________

 |

45A |Denny silt loam, 0 to 2 percent slopes (where drained)

51A |Muscatune silt loam, 0 to 2 percent slopes

61A |Atterberry silt loam, 0 to 2 percent slopes (where drained)

68A |Sable silty clay loam, 0 to 2 percent slopes (where drained)

86B |Osco silt loam, 2 to 5 percent slopes

87A |Dickinson sandy loam, 0 to 2 percent slopes

87C2 |Dickinson sandy loam, 5 to 10 percent slopes, eroded

172A |Hoopeston sandy loam, 0 to 2 percent slopes

212B |Thebes silt loam, 2 to 5 percent slopes

261A |Niota silt loam, 0 to 2 percent slopes (where drained)

274B |Seaton silt loam, 2 to 5 percent slopes

274B2 |Seaton silt loam, 2 to 5 percent slopes, eroded

275A |Joy silt loam, 0 to 2 percent slopes

278A |Stronghurst silt loam, 0 to 2 percent slopes (where drained)

279A |Rozetta silt loam, 0 to 2 percent slopes

279B |Rozetta silt loam, 2 to 5 percent slopes

280B |Fayette silt loam, 2 to 5 percent slopes

280B2 |Fayette silt loam, 2 to 5 percent slopes, eroded

317A |Millsdale silty clay loam, 0 to 2 percent slopes (where drained)

430A |Raddle silt loam, 0 to 2 percent slopes

430B |Raddle silt loam, 2 to 5 percent slopes

525A |Joslin loam, bedrock substratum, 0 to 2 percent slopes

570B |Martinsville silt loam, 2 to 5 percent slopes

647A |Lawler loam, 0 to 2 percent slopes

671A |Biggsville silt loam, 0 to 2 percent slopes

671B |Biggsville silt loam, 2 to 5 percent slopes

675A |Greenbush silt loam, 0 to 2 percent slopes

675B |Greenbush silt loam, 2 to 5 percent slopes

705A |Buckhart silt loam, 0 to 2 percent slopes

727A |Waukee loam, 0 to 2 percent slopes

763A |Joslin silt loam, 0 to 2 percent slopes

763B |Joslin silt loam, 2 to 5 percent slopes

764A |Coyne fine sandy loam, 0 to 2 percent slopes

774A |Saude loam, 0 to 2 percent slopes

961A |Burkhardt-Saude complex, 0 to 2 percent slopes

3074A |Radford silt loam, 0 to 2 percent slopes, frequently flooded (where protected from flooding

 | or not frequently flooded during the growing season)

3076A |Otter silt loam, 0 to 2 percent slopes, frequently flooded (where drained and either

 | protected from flooding or not frequently flooded during the growing season)

3082A |Millington silt loam, 0 to 2 percent slopes, frequently flooded (where drained and either

 | protected from flooding or not frequently flooded during the growing season)

3083A |Wabash silty clay, 0 to 2 percent slopes, frequently flooded (where drained and either

 | protected from flooding or not frequently flooded during the growing season)

3107A |Sawmill silty clay loam, 0 to 2 percent slopes, frequently flooded (where drained and

 | either protected from flooding or not frequently flooded during the growing season)

3239A |Dorchester silt loam, 0 to 2 percent slopes, frequently flooded (where drained and either

 | protected from flooding or not frequently flooded during the growing season)

3400A |Calco silty clay loam, 0 to 2 percent slopes, frequently flooded (where drained and either

 | protected from flooding or not frequently flooded during the growing season)

3415A |Orion silt loam, 0 to 2 percent slopes, frequently flooded (where protected from flooding or

 | not frequently flooded during the growing season)

3428A |Coffeen silt loam, 0 to 2 percent slopes, frequently flooded (where protected from flooding

 | or not frequently flooded during the growing season)

3451A |Lawson silt loam, 0 to 2 percent slopes, frequently flooded (where protected from flooding

 | or not frequently flooded during the growing season)

7076A |Otter silt loam, 0 to 2 percent slopes, rarely flooded (where drained)

7083A |Wabash silty clay, 0 to 2 percent slopes, rarely flooded (where drained)

7107A |Sawmill silty clay loam, 0 to 2 percent slopes, rarely flooded (where drained)

 |
Rock Island County, Illinois 171

Table 7.--Prime Farmland--Continued

_______________________________________________________________________________________________________

 |

 Map | Soil name

symbol |

 | _______________________________________________________________________________________________________

 |

7239A |Dorchester silt loam, 0 to 2 percent slopes, rarely flooded

7304A |Landes fine sandy loam, 0 to 2 percent slopes, rarely flooded

7415A |Orion silt loam, 0 to 2 percent slopes, rarely flooded

7428A |Coffeen silt loam, 0 to 2 percent slopes, rarely flooded

7451A |Lawson silt loam, 0 to 2 percent slopes, rarely flooded

7654A |Moline silty clay, 0 to 2 percent slopes, rarely flooded (where drained)

8107+ |Sawmill silt loam, 0 to 2 percent slopes, occasionally flooded, overwash (where drained)

8302A |Ambraw loam, 0 to 2 percent slopes, occasionally flooded (where drained)

8400A |Calco silty clay loam, 0 to 2 percent slopes, occasionally flooded (where drained)

8404A |Titus silty clay loam, 0 to 2 percent slopes, occasionally flooded (where drained)

 | _______________________________________________________________________________________________________
172 Soil Survey of

Table 8.--Forestland Productivity

(Only the soils suitable for production of commercial trees are listed)

_________________________________________________________________________________

 | Potential productivity | ___________________________________

 Map symbol and | | | |

 soil name | Common trees |Site | Volume | Trees to manage

 | |index|of wood |

 | | | fiber | _________________________________________________________________________________

 | | |cu ft/ac|

 | | | |

8D2, 8D3, 8F, 8F3: | | | |

 Hickory-----------------|Bitternut hickory---| --- | --- |Black walnut,

 |Black oak-----------| --- | --- | eastern

 |Green ash-----------| --- | --- | cottonwood,

 |Northern red oak----| 85 | 72 | eastern white

 |Tuliptree-----------| 95 | 100 | pine, green ash,

 |White oak-----------| 85 | 72 | northern red oak,

 | | | | pecan, pin oak,

 | | | | tuliptree, white

 | | | | oak

 | | | |

19C3, 19D, 19D3, 19F, | | | |

 19F3: | | | |

 Sylvan-----------------|Black walnut--------| --- | --- |Black walnut,

 |Northern red oak----| 80 | 57 | eastern

 |Tuliptree-----------| 90 | 86 | cottonwood,

 |White oak-----------| 80 | 57 | eastern white

 | | | | pine, green ash,

 | | | | northern red oak,

 | | | | pecan, pin oak,

 | | | | tuliptree, white

 | | | | oak

 | | | |

88A: | | | |

 Sparta------------------|Eastern white pine--| --- | --- |Common hackberry,

 |Jack pine-----------| --- | --- | eastern redcedar,

 |Northern red oak----| 70 | 57 | eastern white

 |Red pine------------| --- | --- | pine, green ash,

 | | | | red maple, red

 | | | | pine, shortleaf

 | | | | pine

 | | | |

274B, 274B2, 274C2, | | | |

 274D2: | | | |

 Seaton-----------------|Black walnut--------| --- | --- |Black walnut,

 |Northern red oak----| 80 | 57 | eastern

 |Tuliptree-----------| 90 | 86 | cottonwood,

 |White oak-----------| 90 | 72 | eastern white

 | | | | pine, green ash,

 | | | | northern red oak,

 | | | | pecan, pin oak,

 | | | | tuliptree, white

 | | | | oak

 | | | |

278A: | | | |

 Stronghurst-------------|Bur oak-------------| --- | --- |Common hackberry,

 |Green ash-----------| --- | --- | common persimmon,

 |Northern red oak----| 70 | 57 | eastern

 |White oak-----------| 70 | 57 | cottonwood, green

 | | | | ash, pecan, pin

 | | | | oak, swamp white

 | | | | oak

 | | | |
Rock Island County, Illinois 173

Table 8.--Forestland Productivity--Continued

_________________________________________________________________________________

 | Potential productivity | ___________________________________

 Map symbol and | | | |

 soil name | Common trees |Site | Volume | Trees to manage

 | |index|of wood |

 | | | fiber | _________________________________________________________________________________

 | | |cu ft/ac|

 | | | |

279A, 279B: | | | |

 Rozetta-----------------|Black walnut--------| --- | --- |Black walnut,

 |Northern red oak----| 80 | 57 | eastern

 |Tuliptree-----------| 90 | 86 | cottonwood,

 |White oak-----------| 80 | 57 | eastern white

 | | | | pine, green ash,

 | | | | northern red oak,

 | | | | pecan, pin oak,

 | | | | tuliptree, white

 | | | | oak

 | | | |

280B, 280B2, 280C2, | | | |

 280C3: | | | |

 Fayette----------------|Black walnut--------| --- | --- |Black walnut,

 |Northern red oak----| 80 | 57 | eastern

 |Tuliptree-----------| 90 | 86 | cottonwood,

 |White oak-----------| 80 | 57 | eastern white

 | | | | pine, green ash,

 | | | | northern red oak,

 | | | | pecan, pin oak,

 | | | | tuliptree, white

 | | | | oak

 | | | |

570B, 570C3, 570D3: | | | |

 Martinsville------------|Sweetgum------------| 76 | 72 |Black walnut,

 |Tuliptree-----------| 98 | 100 | eastern

 |White oak-----------| 80 | 57 | cottonwood,

 | | | | eastern white

 | | | | pine, green ash,

 | | | | northern red oak,

 | | | | pecan, pin oak,

 | | | | tuliptree, white

 | | | | oak

 | | | |

689B, 689D: | | | |

 Coloma------------------|Eastern white pine--| 85 | 200 |Common hackberry,

 |Jack pine-----------| 68 | 100 | eastern redcedar,

 |Red pine------------| 78 | 143 | eastern white

 |White oak-----------| 70 | 72 | pine, green ash,

 | | | | red maple, red

 | | | | pine, shortleaf

 | | | | pine

 | | | |

741F: | | | |

 Oakville----------------|Eastern white pine--| 85 | 200 |Common hackberry,

 |Jack pine-----------| 68 | 100 | eastern redcedar,

 |Red pine------------| 78 | 143 | eastern white

 |White oak-----------| 70 | 72 | pine, green ash,

 | | | | red maple, red

 | | | | pine, shortleaf

 | | | | pine

 | | | |

898F3: | | | |

 Hickory-----------------|Bitternut hickory---| --- | --- |Black walnut,

 |Black oak-----------| --- | --- | eastern

 |Green ash-----------| --- | --- | cottonwood,

 |Northern red oak----| 85 | 72 | eastern white

 |Tuliptree-----------| 95 | 100 | pine, green ash,

 |White oak-----------| 85 | 72 | northern red oak,

 | | | | pecan, pin oak,

 | | | | tuliptree, white

 | | | | oak

 | | | |
174 Soil Survey of

Table 8.--Forestland Productivity--Continued

_________________________________________________________________________________

 | Potential productivity | ___________________________________

 Map symbol and | | | |

 soil name | Common trees |Site | Volume | Trees to manage

 | |index|of wood |

 | | | fiber | _________________________________________________________________________________

 | | |cu ft/ac|

 | | | |

898F3: | | | |

 Sylvan------------------|Black walnut--------| --- | --- |Black walnut,

 |Northern red oak----| 80 | 57 | eastern

 |Tuliptree-----------| 90 | 86 | cottonwood,

 |White oak-----------| 80 | 57 | eastern white

 | | | | pine, green ash,

 | | | | northern red oak,

 | | | | pecan, pin oak,

 | | | | tuliptree, white

 | | | | oak

 | | | |

913D2, 913F, 913G: | | | |

 Marseilles--------------|Black oak-----------| --- | --- |Black oak, common

 |Northern red oak----| 66 | 43 | hackberry, eastern

 |White ash-----------| --- | --- | white pine, green

 |White oak-----------| 66 | 43 | ash

 | | | |

 Hickory-----------------|Bitternut hickory---| --- | --- |Black walnut,

 |Black oak-----------| --- | --- | eastern

 |Green ash-----------| --- | --- | cottonwood,

 |Northern red oak----| 85 | 72 | eastern white

 |Tuliptree-----------| 95 | 100 | pine, green ash,

 |White oak-----------| 85 | 72 | northern red oak,

 | | | | pecan, pin oak,

 | | | | tuliptree, white

 | | | | oak

 | | | |

917C2, 917D2: | | | |

 Oakville----------------|Eastern white pine--| 85 | 200 |Common hackberry,

 |Jack pine-----------| 68 | 100 | eastern redcedar,

 |Red pine------------| 78 | 143 | eastern white

 |White oak-----------| 70 | 72 | pine, green ash,

 | | | | red maple, red

 | | | | pine, shortleaf

 | | | | pine

 | | | |

 Tell--------------------|Northern red oak----| 75 | 57 |Black oak, common

 |White oak-----------| 75 | 57 | hackberry, eastern

 | | | | white pine, green

 | | | | ash, red pine

 | | | |

943D2, 943F2: | | | |

 Seaton------------------|Black walnut--------| --- | --- |Black walnut,

 |Northern red oak----| 80 | 57 | eastern

 |Tuliptree-----------| 90 | 86 | cottonwood,

 |White oak-----------| 90 | 72 | eastern white

 | | | | pine, green ash,

 | | | | northern red oak,

 | | | | pecan, pin oak,

 | | | | tuliptree, white

 | | | | oak

 | | | |

 Timula------------------|Bur oak-------------| --- | --- |Black walnut,

 |Green ash-----------| --- | --- | eastern

 |Northern red oak----| --- | --- | cottonwood,

 |White oak-----------| 70 | 57 | eastern white

 | | | | pine, green ash,

 | | | | northern red oak,

 | | | | pecan, pin oak,

 | | | | tuliptree, white

 | | | | oak

 | | | |
Rock Island County, Illinois 175

Table 8.--Forestland Productivity--Continued

_________________________________________________________________________________

 | Potential productivity | ___________________________________

 Map symbol and | | | |

 soil name | Common trees |Site | Volume | Trees to manage

 | |index|of wood |

 | | | fiber | _________________________________________________________________________________

 | | |cu ft/ac|

 | | | |

946D3, 946F3: | | | |

 Hickory-----------------|Bitternut hickory---| --- | --- |Black walnut,

 |Black oak-----------| --- | --- | eastern

 |Green ash-----------| --- | --- | cottonwood,

 |Northern red oak----| 85 | 72 | eastern white

 |Tuliptree-----------| 95 | 100 | pine, green ash,

 |White oak-----------| 85 | 72 | northern red oak,

 | | | | pecan, pin oak,

 | | | | tuliptree, white

 | | | | oak

 | | | |

 Atlas-------------------|Bur oak-------------| 70 | 57 |Black oak, bur oak,

 |Green ash-----------| --- | --- | chinkapin oak,

 |Northern red oak----| 70 | 57 | common hackberry,

 |White oak-----------| 70 | 57 | eastern redcedar,

 | | | | green ash

 | | | |

959G: | | | |

 Strawn------------------|Black walnut--------| --- | 0 |Black walnut,

 |Northern red oak----| 80 | 57 | eastern

 |Tuliptree-----------| 90 | 86 | cottonwood,

 |White oak-----------| 80 | 57 | eastern white

 | | | | pine, green ash,

 | | | | northern red oak,

 | | | | pecan, pin oak,

 | | | | tuliptree, white

 | | | | oak

 | | | |

 Chute-------------------| --- | --- | --- |Common hackberry,

 | | | | eastern redcedar,

 | | | | eastern white

 | | | | pine, green ash,

 | | | | red maple

 | | | |

960D2, 960D3, 960F: | | | |

 Hickory-----------------|Bitternut hickory---| --- | --- |Black walnut,

 |Black oak-----------| --- | --- | eastern

 |Green ash-----------| --- | --- | cottonwood,

 |Northern red oak----| 85 | 72 | eastern white

 |Tuliptree-----------| 95 | 100 | pine, green ash,

 |White oak-----------| 85 | 72 | northern red oak,

 | | | | pecan, pin oak,

 | | | | tuliptree, white

 | | | | oak

 | | | |

 Sylvan------------------|Black walnut--------| --- | --- |Black walnut,

 |Northern red oak----| 80 | 57 | eastern

 |Tuliptree-----------| 90 | 86 | cottonwood,

 |White oak-----------| 80 | 57 | eastern white

 | | | | pine, green ash,

 | | | | northern red oak,

 | | | | pecan, pin oak,

 | | | | tuliptree, white

 | | | | oak

 | | | |
176 Soil Survey of

Table 8.--Forestland Productivity--Continued

_________________________________________________________________________________

 | Potential productivity | ___________________________________

 Map symbol and | | | |

 soil name | Common trees |Site | Volume | Trees to manage

 | |index|of wood |

 | | | fiber | _________________________________________________________________________________

 | | |cu ft/ac|

 | | | |

960D2, 960D3, 960F: | | | |

 Fayette-----------------|Black walnut--------| --- | --- |Black walnut,

 |Northern red oak----| 80 | 57 | eastern

 |Tuliptree-----------| 90 | 86 | cottonwood,

 |White oak-----------| 80 | 57 | eastern white

 | | | | pine, green ash,

 | | | | northern red oak,

 | | | | pecan, pin oak,

 | | | | tuliptree, white

 | | | | oak

 | | | |

962F: | | | |

 Sylvan------------------|Black walnut--------| --- | --- |Black walnut,

 |Northern red oak----| 80 | 57 | eastern

 |Tuliptree-----------| 90 | 86 | cottonwood,

 |White oak-----------| 80 | 57 | eastern white

 | | | | pine, green ash,

 | | | | northern red oak,

 | | | | pecan, pin oak,

 | | | | tuliptree, white

 | | | | oak

 | | | |

 Bold--------------------| --- | --- | --- |Bur oak, chinkapin

 | | | | oak, common

 | | | | hackberry, eastern

 | | | | cottonwood,

 | | | | eastern redcedar,

 | | | | green ash

 | | | | _________________________________________________________________________________
Rock Island County, Illinois 177

Table 9a.--Forestland Management

(Only the soils suitable for production of commercial trees are listed. The information in this

 table indicates the dominant soil condition but does not eliminate the need for onsite

 investigation. The numbers in the value columns range from 0.01 to 1.00. The larger the value,

 the greater the limitation. See text for further explanation of ratings in this table)

___________________________________________________________________________________________________

 | | |

 Map symbol | Limitations affecting | Suitability for | Soil rutting

 and soil name | construction of | log landings | hazard

 | haul roads and | |

 | log landings | | _____________________________________________________________________________

 | Rating class and |Value| Rating class and |Value| Rating class and |Value

 | limiting features | | limiting features | | limiting features | ___________________________________________________________________________________________________

 | | | | | |

8D2, 8D3: | | | | | |

 Hickory-------------|Moderate | |Poorly suited | |Severe |

 | Low strength |0.50 | Slope |1.00 | Low strength |1.00

 | | | Low strength |0.50 | |

 | | | | | |

8F, 8F3: | | | | | |

 Hickory-------------|Moderate | |Poorly suited | |Severe |

 | Slope |0.50 | Slope |1.00 | Low strength |1.00

 | Low strength |0.50 | Low strength |0.50 | |

 | | | | | |

19C3: | | | | | |

 Sylvan--------------|Moderate | |Moderately suited | |Severe |

 | Low strength |0.50 | Low strength |0.50 | Low strength |1.00

 | | | Slope |0.50 | |

 | | | | | |

19D: | | | | | |

 Sylvan--------------|Slight | |Poorly suited | |Severe |

 | | | Slope |1.00 | Low strength |1.00

 | | | Low strength |0.50 | |

 | | | | | |

19D3: | | | | | |

 Sylvan--------------|Moderate | |Poorly suited | |Severe |

 | Low strength |0.50 | Slope |1.00 | Low strength |1.00

 | | | Low strength |0.50 | |

 | | | | | |

19F, 19F3: | | | | | |

 Sylvan--------------|Moderate | |Poorly suited | |Severe |

 | Slope |0.50 | Slope |1.00 | Low strength |1.00

 | Low strength |0.50 | Low strength |0.50 | |

 | | | | | |

88A: | | | | | |

 Sparta--------------|Moderate | |Moderately suited | |Moderate |

 | Sandiness |0.50 | Sandiness |0.50 | Low strength |0.50

 | | | | | |

274B, 274B2: | | | | | |

 Seaton--------------|Moderate | |Moderately suited | |Severe |

 | Low strength |0.50 | Low strength |0.50 | Low strength |1.00

 | | | | | |

274C2: | | | | | |

 Seaton--------------|Moderate | |Moderately suited | |Severe |

 | Low strength |0.50 | Low strength |0.50 | Low strength |1.00

 | | | Slope |0.50 | |

 | | | | | |

274D2: | | | | | |

 Seaton--------------|Moderate | |Poorly suited | |Severe |

 | Low strength |0.50 | Slope |1.00 | Low strength |1.00

 | | | Low strength |0.50 | |

 | | | | | |

278A: | | | | | |

 Stronghurst---------|Moderate | |Moderately suited | |Severe |

 | Low strength |0.50 | Low strength |0.50 | Low strength |1.00

 | | | Wetness |0.50 | |

 | | | | | |
178 Soil Survey of

Table 9a.--Forestland Management--Continued

___________________________________________________________________________________________________

 | | |

 Map symbol | Limitations affecting | Suitability for | Soil rutting

 and soil name | construction of | log landings | hazard

 | haul roads and | |

 | log landings | | _____________________________________________________________________________

 | Rating class and |Value| Rating class and |Value| Rating class and |Value

 | limiting features | | limiting features | | limiting features | ___________________________________________________________________________________________________

 | | | | | |

279A, 279B: | | | | | |

 Rozetta-------------|Moderate | |Moderately suited | |Severe |

 | Low strength |0.50 | Low strength |0.50 | Low strength |1.00

 | | | | | |

280B, 280B2: | | | | | |

 Fayette-------------|Moderate | |Moderately suited | |Severe |

 | Low strength |0.50 | Low strength |0.50 | Low strength |1.00

 | | | | | |

280C2, 280C3: | | | | | |

 Fayette-------------|Moderate | |Moderately suited | |Severe |

 | Low strength |0.50 | Low strength |0.50 | Low strength |1.00

 | | | Slope |0.50 | |

 | | | | | |

570B: | | | | | |

 Martinsville--------|Moderate | |Moderately suited | |Severe |

 | Low strength |0.50 | Low strength |0.50 | Low strength |1.00

 | | | | | |

570C3: | | | | | |

 Martinsville--------|Moderate | |Moderately suited | |Severe |

 | Low strength |0.50 | Low strength |0.50 | Low strength |1.00

 | | | Slope |0.50 | |

 | | | | | |

570D3: | | | | | |

 Martinsville--------|Moderate | |Poorly suited | |Severe |

 | Low strength |0.50 | Slope |1.00 | Low strength |1.00

 | | | Low strength |0.50 | |

 | | | | | |

689B: | | | | | |

 Coloma--------------|Moderate | |Moderately suited | |Moderate |

 | Sandiness |0.50 | Sandiness |0.50 | Low strength |0.50

 | | | | | |

689D: | | | | | |

 Coloma--------------|Moderate | |Moderately suited | |Moderate |

 | Sandiness |0.50 | Slope |0.50 | Low strength |0.50

 | | | Sandiness |0.50 | |

 | | | | | |

741F: | | | | | |

 Oakville------------|Moderate | |Poorly suited | |Moderate |

 | Slope |0.50 | Slope |1.00 | Low strength |0.50

 | Sandiness |0.50 | Sandiness |0.50 | |

 | | | | | |

898F3: | | | | | |

 Hickory-------------|Moderate | |Poorly suited | |Severe |

 | Slope |0.50 | Slope |1.00 | Low strength |1.00

 | Low strength |0.50 | Low strength |0.50 | |

 | | | | | |

 Sylvan--------------|Moderate | |Poorly suited | |Severe |

 | Slope |0.50 | Slope |1.00 | Low strength |1.00

 | Low strength |0.50 | Low strength |0.50 | |

 | | | | | |

898G: | | | | | |

 Hickory-------------|Severe | |Poorly suited | |Severe |

 | Slope |1.00 | Slope |1.00 | Low strength |1.00

 | Low strength |0.50 | Low strength |0.50 | |

 | | | | | |

 Sylvan--------------|Severe | |Poorly suited | |Severe |

 | Slope |1.00 | Slope |1.00 | Low strength |1.00

 | Low strength |0.50 | Low strength |0.50 | |

 | | | | | |
Rock Island County, Illinois 179

Table 9a.--Forestland Management--Continued

___________________________________________________________________________________________________

 | | |

 Map symbol | Limitations affecting | Suitability for | Soil rutting

 and soil name | construction of | log landings | hazard

 | haul roads and | |

 | log landings | | _____________________________________________________________________________

 | Rating class and |Value| Rating class and |Value| Rating class and |Value

 | limiting features | | limiting features | | limiting features | ___________________________________________________________________________________________________

 | | | | | |

913D2: | | | | | |

 Marseilles----------|Moderate | |Poorly suited | |Severe |

 | Low strength |0.50 | Slope |1.00 | Low strength |1.00

 | | | Low strength |0.50 | |

 | | | | | |

 Hickory-------------|Moderate | |Poorly suited | |Severe |

 | Low strength |0.50 | Slope |1.00 | Low strength |1.00

 | | | Low strength |0.50 | |

 | | | | | |

913F: | | | | | |

 Marseilles----------|Moderate | |Poorly suited | |Severe |

 | Slope |0.50 | Slope |1.00 | Low strength |1.00

 | Low strength |0.50 | Low strength |0.50 | |

 | | | | | |

 Hickory-------------|Moderate | |Poorly suited | |Severe |

 | Slope |0.50 | Slope |1.00 | Low strength |1.00

 | Low strength |0.50 | Low strength |0.50 | |

 | | | | | |

913G: | | | | | |

 Marseilles----------|Severe | |Poorly suited | |Severe |

 | Slope |1.00 | Slope |1.00 | Low strength |1.00

 | Low strength |0.50 | Low strength |0.50 | |

 | | | | | |

 Hickory-------------|Severe | |Poorly suited | |Severe |

 | Slope |1.00 | Slope |1.00 | Low strength |1.00

 | Low strength |0.50 | Low strength |0.50 | |

 | | | | | |

917C2: | | | | | |

 Oakville------------|Moderate | |Moderately suited | |Moderate |

 | Sandiness |0.50 | Sandiness |0.50 | Low strength |0.50

 | | | Slope |0.50 | |

 | | | | | |

 Tell----------------|Moderate | |Moderately suited | |Severe |

 | Low strength |0.50 | Low strength |0.50 | Low strength |1.00

 | | | Slope |0.50 | |

 | | | | | |

917D2: | | | | | |

 Oakville------------|Moderate | |Poorly suited | |Moderate |

 | Sandiness |0.50 | Slope |1.00 | Low strength |0.50

 | | | Sandiness |0.50 | |

 | | | | | |

 Tell----------------|Moderate | |Poorly suited | |Severe |

 | Low strength |0.50 | Slope |1.00 | Low strength |1.00

 | | | Low strength |0.50 | |

 | | | | | |

943D2: | | | | | |

 Seaton--------------|Moderate | |Poorly suited | |Severe |

 | Low strength |0.50 | Slope |1.00 | Low strength |1.00

 | | | Low strength |0.50 | |

 | | | | | |

 Timula--------------|Moderate | |Poorly suited | |Severe |

 | Low strength |0.50 | Slope |1.00 | Low strength |1.00

 | | | Low strength |0.50 | |

 | | | | | |

943F2: | | | | | |

 Seaton--------------|Moderate | |Poorly suited | |Severe |

 | Slope |0.50 | Slope |1.00 | Low strength |1.00

 | Low strength |0.50 | Low strength |0.50 | |

 | | | | | |
180 Soil Survey of

Table 9a.--Forestland Management--Continued

___________________________________________________________________________________________________

 | | |

 Map symbol | Limitations affecting | Suitability for | Soil rutting

 and soil name | construction of | log landings | hazard

 | haul roads and | |

 | log landings | | _____________________________________________________________________________

 | Rating class and |Value| Rating class and |Value| Rating class and |Value

 | limiting features | | limiting features | | limiting features | ___________________________________________________________________________________________________

 | | | | | |

943F2: | | | | | |

 Timula--------------|Moderate | |Poorly suited | |Severe |

 | Slope |0.50 | Slope |1.00 | Low strength |1.00

 | Low strength |0.50 | Low strength |0.50 | |

 | | | | | |

946D3: | | | | | |

 Hickory-------------|Moderate | |Poorly suited | |Severe |

 | Low strength |0.50 | Slope |1.00 | Low strength |1.00

 | | | Low strength |0.50 | |

 | | | | | |

 Atlas---------------|Moderate | |Poorly suited | |Severe |

 | Stickiness/slope |0.50 | Slope |1.00 | Low strength |1.00

 | Low strength |0.50 | Wetness |0.50 | |

 | | | Low strength |0.50 | |

 | | | Stickiness |0.50 | |

 | | | | | |

946F3: | | | | | |

 Hickory-------------|Moderate | |Poorly suited | |Severe |

 | Slope |0.50 | Slope |1.00 | Low strength |1.00

 | Low strength |0.50 | Low strength |0.50 | |

 | | | | | |

 Atlas---------------|Moderate | |Poorly suited | |Severe |

 | Slope |0.50 | Slope |1.00 | Low strength |1.00

 | Stickiness/slope |0.50 | Wetness |0.50 | |

 | Low strength |0.50 | Low strength |0.50 | |

 | | | Stickiness |0.50 | |

 | | | | | |

959G: | | | | | |

 Strawn--------------|Severe | |Poorly suited | |Severe |

 | Slope |1.00 | Slope |1.00 | Low strength |1.00

 | Low strength |0.50 | Low strength |0.50 | |

 | | | | | |

 Chute---------------|Severe | |Poorly suited | |Moderate |

 | Slope |1.00 | Slope |1.00 | Low strength |0.50

 | | | Sandiness |0.50 | |

 | | | | | |

960D2, 960D3: | | | | | |

 Hickory-------------|Moderate | |Poorly suited | |Severe |

 | Low strength |0.50 | Slope |1.00 | Low strength |1.00

 | | | Low strength |0.50 | |

 | | | | | |

 Sylvan--------------|Moderate | |Poorly suited | |Severe |

 | Low strength |0.50 | Slope |1.00 | Low strength |1.00

 | | | Low strength |0.50 | |

 | | | | | |

 Fayette-------------|Moderate | |Poorly suited | |Severe |

 | Low strength |0.50 | Slope |1.00 | Low strength |1.00

 | | | Low strength |0.50 | |

 | | | | | |

960F: | | | | | |

 Hickory-------------|Moderate | |Poorly suited | |Severe |

 | Slope |0.50 | Slope |1.00 | Low strength |1.00

 | Low strength |0.50 | Low strength |0.50 | |

 | | | | | |

 Sylvan--------------|Moderate | |Poorly suited | |Severe |

 | Slope |0.50 | Slope |1.00 | Low strength |1.00

 | Low strength |0.50 | Low strength |0.50 | |

 | | | | | |

 Fayette-------------|Moderate | |Poorly suited | |Severe |

 | Slope |0.50 | Slope |1.00 | Low strength |1.00

 | Low strength |0.50 | Low strength |0.50 | |

 | | | | | |
Rock Island County, Illinois 181

Table 9a.--Forestland Management--Continued

___________________________________________________________________________________________________

 | | |

 Map symbol | Limitations affecting | Suitability for | Soil rutting

 and soil name | construction of | log landings | hazard

 | haul roads and | |

 | log landings | | _____________________________________________________________________________

 | Rating class and |Value| Rating class and |Value| Rating class and |Value

 | limiting features | | limiting features | | limiting features | ___________________________________________________________________________________________________

 | | | | | |

962F: | | | | | |

 Sylvan--------------|Moderate | |Poorly suited | |Severe |

 | Slope |0.50 | Slope |1.00 | Low strength |1.00

 | Low strength |0.50 | Low strength |0.50 | |

 | | | | | |

 Bold----------------|Moderate | |Poorly suited | |Severe |

 | Slope |0.50 | Slope |1.00 | Low strength |1.00

 | Low strength |0.50 | Low strength |0.50 | |

 | | | | | | ___________________________________________________________________________________________________
182 Soil Survey of

Table 9b.--Forestland Management

(The information in this table indicates the dominant soil condition but does not eliminate the need

 for onsite investigation. The numbers in the value columns range from 0.01 to 1.00. The larger

 the value, the greater the limitation. See text for further explanation of ratings in this

 table)

________________________________________________________________________________________________________

 | | |

 Map symbol | Hazard of off-road | Hazard of erosion | Suitability for roads

 and soil name | or off-trail erosion | on roads and trails | (natural surface)

 | | | _____________________________________________________________________________

 | Rating class and |Value| Rating class and |Value| Rating class and |Value

 | limiting features | | limiting features | | limiting features | ________________________________________________________________________________________________________

 | | | | | |

8D2, 8D3: | | | | | |

 Hickory------------------|Slight | |Severe | |Poorly suited |

 | | | Slope/erodibility|0.95 | Slope |1.00

 | | | | | Low strength |0.50

 | | | | | |

8F, 8F3: | | | | | |

 Hickory------------------|Moderate | |Severe | |Poorly suited |

 | Slope/erodibility|0.50 | Slope/erodibility|0.95 | Slope |1.00

 | | | | | Low strength |0.50

 | | | | | |

19C3: | | | | | |

 Sylvan-------------------|Slight | |Moderate | |Moderately suited |

 | | | Slope/erodibility|0.50 | Low strength |0.50

 | | | | | Slope |0.50

 | | | | | |

19D, 19D3: | | | | | |

 Sylvan-------------------|Moderate | |Severe | |Poorly suited |

 | Slope/erodibility|0.50 | Slope/erodibility|0.95 | Slope |1.00

 | | | | | Low strength |0.50

 | | | | | |

19F, 19F3: | | | | | |

 Sylvan-------------------|Severe | |Severe | |Poorly suited |

 | Slope/erodibility|0.75 | Slope/erodibility|0.95 | Slope |1.00

 | | | | | Low strength |0.50

 | | | | | |

88A: | | | | | |

 Sparta-------------------|Slight | |Slight | |Moderately suited |

 | | | | | Sandiness |0.50

 | | | | | |

274B, 274B2: | | | | | |

 Seaton-------------------|Slight | |Moderate | |Moderately suited |

 | | | Slope/erodibility|0.50 | Low strength |0.50

 | | | | | |

274C2: | | | | | |

 Seaton-------------------|Slight | |Moderate | |Moderately suited |

 | | | Slope/erodibility|0.50 | Low strength |0.50

 | | | | | Slope |0.50

 | | | | | |

274D2: | | | | | |

 Seaton-------------------|Moderate | |Severe | |Poorly suited |

 | Slope/erodibility|0.50 | Slope/erodibility|0.95 | Slope |1.00

 | | | | | Low strength |0.50

 | | | | | |

278A: | | | | | |

 Stronghurst--------------|Slight | |Slight | |Moderately suited |

 | | | | | Wetness |0.50

 | | | | | Low strength |0.50

 | | | | | |

279A: | | | | | |

 Rozetta------------------|Slight | |Slight | |Moderately suited |

 | | | | | Low strength |0.50

 | | | | | |

279B: | | | | | |

 Rozetta------------------|Slight | |Moderate | |Moderately suited |

 | | | Slope/erodibility|0.50 | Low strength |0.50

 | | | | | |
Rock Island County, Illinois 183

Table 9b.--Forestland Management--Continued

________________________________________________________________________________________________________

 | | |

 Map symbol | Hazard of off-road | Hazard of erosion | Suitability for roads

 and soil name | or off-trail erosion | on roads and trails | (natural surface)

 | | | _____________________________________________________________________________

 | Rating class and |Value| Rating class and |Value| Rating class and |Value

 | limiting features | | limiting features | | limiting features | ________________________________________________________________________________________________________

 | | | | | |

280B, 280B2: | | | | | |

 Fayette------------------|Slight | |Moderate | |Moderately suited |

 | | | Slope/erodibility|0.50 | Low strength |0.50

 | | | | | |

280C2, 280C3: | | | | | |

 Fayette------------------|Slight | |Moderate | |Moderately suited |

 | | | Slope/erodibility|0.50 | Low strength |0.50

 | | | | | Slope |0.50

 | | | | | |

570B: | | | | | |

 Martinsville-------------|Slight | |Moderate | |Moderately suited |

 | | | Slope/erodibility|0.50 | Low strength |0.50

 | | | | | |

570C3: | | | | | |

 Martinsville-------------|Slight | |Moderate | |Moderately suited |

 | | | Slope/erodibility|0.50 | Low strength |0.50

 | | | | | Slope |0.50

 | | | | | |

570D3: | | | | | |

 Martinsville-------------|Slight | |Severe | |Poorly suited |

 | | | Slope/erodibility|0.95 | Slope |1.00

 | | | | | Low strength |0.50

 | | | | | |

689B: | | | | | |

 Coloma-------------------|Slight | |Slight | |Moderately suited |

 | | | | | Sandiness |0.50

 | | | | | |

689D: | | | | | |

 Coloma-------------------|Slight | |Moderate | |Moderately suited |

 | | | Slope/erodibility|0.50 | Slope |0.50

 | | | | | Sandiness |0.50

 | | | | | |

898F3: | | | | | |

 Hickory------------------|Moderate | |Severe | |Poorly suited |

 | Slope/erodibility|0.50 | Slope/erodibility|0.95 | Slope |1.00

 | | | | | Low strength |0.50

 | | | | | |

 Sylvan-------------------|Severe | |Severe | |Poorly suited |

 | Slope/erodibility|0.75 | Slope/erodibility|0.95 | Slope |1.00

 | | | | | Low strength |0.50

 | | | | | |

898G: | | | | | |

 Hickory------------------|Severe | |Severe | |Poorly suited |

 | Slope/erodibility|0.75 | Slope/erodibility|0.95 | Slope |1.00

 | | | | | Low strength |0.50

 | | | | | |

 Sylvan-------------------|Very severe | |Severe | |Poorly suited |

 | Slope/erodibility|0.95 | Slope/erodibility|0.95 | Slope |1.00

 | | | | | Low strength |0.50

 | | | | | |

913D2: | | | | | |

 Marseilles---------------|Slight | |Severe | |Poorly suited |

 | | | Slope/erodibility|0.95 | Slope |1.00

 | | | | | Low strength |0.50

 | | | | | |

 Hickory------------------|Slight | |Severe | |Poorly suited |

 | | | Slope/erodibility|0.95 | Slope |1.00

 | | | | | Low strength |0.50

 | | | | | |
184 Soil Survey of

Table 9b.--Forestland Management--Continued

________________________________________________________________________________________________________

 | | |

 Map symbol | Hazard of off-road | Hazard of erosion | Suitability for roads

 and soil name | or off-trail erosion | on roads and trails | (natural surface)

 | | | _____________________________________________________________________________

 | Rating class and |Value| Rating class and |Value| Rating class and |Value

 | limiting features | | limiting features | | limiting features | ________________________________________________________________________________________________________

 | | | | | |

913F: | | | | | |

 Marseilles---------------|Moderate | |Severe | |Poorly suited |

 | Slope/erodibility|0.50 | Slope/erodibility|0.95 | Slope |1.00

 | | | | | Low strength |0.50

 | | | | | |

 Hickory------------------|Moderate | |Severe | |Poorly suited |

 | Slope/erodibility|0.50 | Slope/erodibility|0.95 | Slope |1.00

 | | | | | Low strength |0.50

 | | | | | |

913G: | | | | | |

 Marseilles---------------|Severe | |Severe | |Poorly suited |

 | Slope/erodibility|0.75 | Slope/erodibility|0.95 | Slope |1.00

 | | | | | Low strength |0.50

 | | | | | |

 Hickory------------------|Severe | |Severe | |Poorly suited |

 | Slope/erodibility|0.75 | Slope/erodibility|0.95 | Slope |1.00

 | | | | | Low strength |0.50

 | | | | | |

917C2: | | | | | |

 Oakville-----------------|Slight | |Moderate | |Moderately suited |

 | | | Slope/erodibility|0.50 | Sandiness |0.50

 | | | | | Slope |0.50

 | | | | | |

 Tell---------------------|Slight | |Moderate | |Moderately suited |

 | | | Slope/erodibility|0.50 | Low strength |0.50

 | | | | | Slope |0.50

 | | | | | |

917D2: | | | | | |

 Oakville-----------------|Slight | |Moderate | |Poorly suited |

 | | | Slope/erodibility|0.50 | Slope |1.00

 | | | | | Sandiness |0.50

 | | | | | |

 Tell---------------------|Moderate | |Severe | |Poorly suited |

 | Slope/erodibility|0.50 | Slope/erodibility|0.95 | Slope |1.00

 | | | | | Low strength |0.50

 | | | | | |

943D2: | | | | | |

 Seaton-------------------|Moderate | |Severe | |Poorly suited |

 | Slope/erodibility|0.50 | Slope/erodibility|0.95 | Slope |1.00

 | | | | | Low strength |0.50

 | | | | | |

 Timula-------------------|Moderate | |Severe | |Poorly suited |

 | Slope/erodibility|0.50 | Slope/erodibility|0.95 | Slope |1.00

 | | | | | Low strength |0.50

 | | | | | |

943F2: | | | | | |

 Seaton-------------------|Severe | |Severe | |Poorly suited |

 | Slope/erodibility|0.75 | Slope/erodibility|0.95 | Slope |1.00

 | | | | | Low strength |0.50

 | | | | | |

 Timula-------------------|Severe | |Severe | |Poorly suited |

 | Slope/erodibility|0.75 | Slope/erodibility|0.95 | Slope |1.00

 | | | | | Low strength |0.50

 | | | | | |

946D3: | | | | | |

 Hickory------------------|Slight | |Severe | |Poorly suited |

 | | | Slope/erodibility|0.95 | Slope |1.00

 | | | | | Low strength |0.50

 | | | | | |
Rock Island County, Illinois 185

Table 9b.--Forestland Management--Continued

________________________________________________________________________________________________________

 | | |

 Map symbol | Hazard of off-road | Hazard of erosion | Suitability for roads

 and soil name | or off-trail erosion | on roads and trails | (natural surface)

 | | | _____________________________________________________________________________

 | Rating class and |Value| Rating class and |Value| Rating class and |Value

 | limiting features | | limiting features | | limiting features | ________________________________________________________________________________________________________

 | | | | | |

946D3: | | | | | |

 Atlas--------------------|Moderate | |Severe | |Poorly suited |

 | Slope/erodibility|0.50 | Slope/erodibility|0.95 | Slope |1.00

 | | | | | Wetness |0.50

 | | | | | Low strength |0.50

 | | | | | Stickiness |0.50

 | | | | | |

946F3: | | | | | |

 Hickory------------------|Moderate | |Severe | |Poorly suited |

 | Slope/erodibility|0.50 | Slope/erodibility|0.95 | Slope |1.00

 | | | | | Low strength |0.50

 | | | | | |

 Atlas--------------------|Severe | |Severe | |Poorly suited |

 | Slope/erodibility|0.75 | Slope/erodibility|0.95 | Slope |1.00

 | | | | | Wetness |0.50

 | | | | | Low strength |0.50

 | | | | | Stickiness |0.50

 | | | | | |

959G: | | | | | |

 Strawn-------------------|Severe | |Severe | |Poorly suited |

 | Slope/erodibility|0.75 | Slope/erodibility|0.95 | Slope |1.00

 | | | | | Low strength |0.50

 | | | | | |

 Chute--------------------|Severe | |Severe | |Poorly suited |

 | Slope/erodibility|0.75 | Slope/erodibility|0.95 | Slope |1.00

 | | | | | Sandiness |0.50

 | | | | | |

960D2, 960D3: | | | | | |

 Hickory------------------|Slight | |Severe | |Poorly suited |

 | | | Slope/erodibility|0.95 | Slope |1.00

 | | | | | Low strength |0.50

 | | | | | |

 Sylvan-------------------|Moderate | |Severe | |Poorly suited |

 | Slope/erodibility|0.50 | Slope/erodibility|0.95 | Slope |1.00

 | | | | | Low strength |0.50

 | | | | | |

 Fayette------------------|Moderate | |Severe | |Poorly suited |

 | Slope/erodibility|0.50 | Slope/erodibility|0.95 | Slope |1.00

 | | | | | Low strength |0.50

 | | | | | |

960F: | | | | | |

 Hickory------------------|Moderate | |Severe | |Poorly suited |

 | Slope/erodibility|0.50 | Slope/erodibility|0.95 | Slope |1.00

 | | | | | Low strength |0.50

 | | | | | |

 Sylvan-------------------|Severe | |Severe | |Poorly suited |

 | Slope/erodibility|0.75 | Slope/erodibility|0.95 | Slope |1.00

 | | | | | Low strength |0.50

 | | | | | |

 Fayette------------------|Severe | |Severe | |Poorly suited |

 | Slope/erodibility|0.75 | Slope/erodibility|0.95 | Slope |1.00

 | | | | | Low strength |0.50

 | | | | | |

962F: | | | | | |

 Sylvan-------------------|Severe | |Severe | |Poorly suited |

 | Slope/erodibility|0.75 | Slope/erodibility|0.95 | Slope |1.00

 | | | | | Low strength |0.50

 | | | | | |
186 Soil Survey of

Table 9b.--Forestland Management--Continued

________________________________________________________________________________________________________

 | | |

 Map symbol | Hazard of off-road | Hazard of erosion | Suitability for roads

 and soil name | or off-trail erosion | on roads and trails | (natural surface)

 | | | _____________________________________________________________________________

 | Rating class and |Value| Rating class and |Value| Rating class and |Value

 | limiting features | | limiting features | | limiting features | ________________________________________________________________________________________________________

 | | | | | |

962F: | | | | | |

 Bold---------------------|Severe | |Severe | |Poorly suited |

 | Slope/erodibility|0.75 | Slope/erodibility|0.95 | Slope |1.00

 | | | | | Low strength |0.50

 | | | | | | ________________________________________________________________________________________________________
Rock Island County, Illinois 187

Table 9c.--Forestland Management

(Only the soils suitable for production of commercial trees are listed. The information in this

 table indicates the dominant soil condition but does not eliminate the need for onsite

 investigation. The numbers in the value columns range from 0.01 to 1.00. The larger the value,

 the greater the limitation. See text for further explanation of ratings in this table)

___________________________________________________________________________________________________

 | | |

 Map symbol | Suitability for | Suitability for | Suitability for use of

 and soil name | hand planting | mechanical planting | harvesting equipment

 | | |

 | | | _____________________________________________________________________________

 | Rating class and |Value| Rating class and |Value| Rating class and |Value

 | limiting features | | limiting features | | limiting features | ___________________________________________________________________________________________________

 | | | | | |

8D2, 8D3: | | | | | |

 Hickory-------------|Moderately suited | |Moderately suited | |Moderately suited |

 | Stickiness |0.50 | Slope |0.50 | Low strength |0.50

 | | | Stickiness |0.50 | |

 | | | | | |

8F, 8F3: | | | | | |

 Hickory-------------|Moderately suited | |Unsuited | |Moderately suited |

 | Stickiness |0.50 | Slope |1.00 | Low strength |0.50

 | | | Stickiness |0.50 | Slope |0.50

 | | | | | |

19C3, 19D, 19D3: | | | | | |

 Sylvan--------------|Moderately suited | |Moderately suited | |Moderately suited |

 | Stickiness |0.50 | Slope |0.50 | Low strength |0.50

 | | | Stickiness |0.50 | |

 | | | | | |

19F, 19F3: | | | | | |

 Sylvan--------------|Moderately suited | |Unsuited | |Moderately suited |

 | Stickiness |0.50 | Slope |1.00 | Low strength |0.50

 | | | Stickiness |0.50 | Slope |0.50

 | | | | | |

88A: | | | | | |

 Sparta--------------|Moderately suited | |Moderately suited | |Moderately suited |

 | Sandiness |0.50 | Sandiness |0.50 | Sandiness |0.50

 | | | | | |

274B, 274B2: | | | | | |

 Seaton--------------|Well suited | |Well suited | |Moderately suited |

 | | | | | Low strength |0.50

 | | | | | |

274C2, 274D2: | | | | | |

 Seaton--------------|Well suited | |Moderately suited | |Moderately suited |

 | | | Slope |0.50 | Low strength |0.50

 | | | | | |

278A: | | | | | |

 Stronghurst---------|Moderately suited | |Moderately suited | |Moderately suited |

 | Stickiness |0.50 | Stickiness |0.50 | Low strength |0.50

 | | | | | |

279A, 279B: | | | | | |

 Rozetta-------------|Moderately suited | |Moderately suited | |Moderately suited |

 | Stickiness |0.50 | Stickiness |0.50 | Low strength |0.50

 | | | | | |

280B, 280B2: | | | | | |

 Fayette-------------|Moderately suited | |Moderately suited | |Moderately suited |

 | Stickiness |0.50 | Stickiness |0.50 | Low strength |0.50

 | | | | | |

280C2, 280C3: | | | | | |

 Fayette-------------|Moderately suited | |Moderately suited | |Moderately suited |

 | Stickiness |0.50 | Slope |0.50 | Low strength |0.50

 | | | Stickiness |0.50 | |

 | | | | | |

570B: | | | | | |

 Martinsville--------|Moderately suited | |Moderately suited | |Moderately suited |

 | Stickiness |0.50 | Stickiness |0.50 | Low strength |0.50

 | | | | | |
188 Soil Survey of

Table 9c.--Forestland Management--Continued

___________________________________________________________________________________________________

 | | |

 Map symbol | Suitability for | Suitability for | Suitability for use of

 and soil name | hand planting | mechanical planting | harvesting equipment

 | | |

 | | | _____________________________________________________________________________

 | Rating class and |Value| Rating class and |Value| Rating class and |Value

 | limiting features | | limiting features | | limiting features | ___________________________________________________________________________________________________

 | | | | | |

570C3, 570D3: | | | | | |

 Martinsville--------|Moderately suited | |Moderately suited | |Moderately suited |

 | Stickiness |0.50 | Slope |0.50 | Low strength |0.50

 | | | Stickiness |0.50 | |

 | | | | | |

689B: | | | | | |

 Coloma--------------|Moderately suited | |Moderately suited | |Moderately suited |

 | Sandiness |0.50 | Sandiness |0.50 | Sandiness |0.50

 | | | | | |

689D: | | | | | |

 Coloma--------------|Moderately suited | |Moderately suited | |Moderately suited |

 | Sandiness |0.50 | Slope |0.50 | Sandiness |0.50

 | | | Sandiness |0.50 | |

 | | | | | |

741F: | | | | | |

 Oakville------------|Moderately suited | |Poorly suited | |Moderately suited |

 | Sandiness |0.50 | Slope |0.75 | Sandiness |0.50

 | | | Sandiness |0.50 | Slope |0.50

 | | | | | |

898F3: | | | | | |

 Hickory-------------|Moderately suited | |Unsuited | |Moderately suited |

 | Stickiness |0.50 | Slope |1.00 | Low strength |0.50

 | | | Stickiness |0.50 | Slope |0.50

 | | | | | |

 Sylvan--------------|Moderately suited | |Unsuited | |Moderately suited |

 | Stickiness |0.50 | Slope |1.00 | Low strength |0.50

 | | | Stickiness |0.50 | Slope |0.50

 | | | | | |

898G: | | | | | |

 Hickory-------------|Moderately suited | |Unsuited | |Poorly suited |

 | Slope |0.50 | Slope |1.00 | Slope |1.00

 | Stickiness |0.50 | Stickiness |0.50 | Low strength |0.50

 | | | | | |

 Sylvan--------------|Moderately suited | |Unsuited | |Poorly suited |

 | Slope |0.50 | Slope |1.00 | Slope |1.00

 | Stickiness |0.50 | Stickiness |0.50 | Low strength |0.50

 | | | | | |

913D2: | | | | | |

 Marseilles----------|Moderately suited | |Moderately suited | |Moderately suited |

 | Stickiness |0.50 | Slope |0.50 | Low strength |0.50

 | | | Stickiness |0.50 | |

 | | | | | |

 Hickory-------------|Moderately suited | |Moderately suited | |Moderately suited |

 | Stickiness |0.50 | Slope |0.50 | Low strength |0.50

 | | | Stickiness |0.50 | |

 | | | | | |

913F: | | | | | |

 Marseilles----------|Moderately suited | |Unsuited | |Moderately suited |

 | Stickiness |0.50 | Slope |1.00 | Low strength |0.50

 | | | Stickiness |0.50 | Slope |0.50

 | | | | | |

 Hickory-------------|Moderately suited | |Unsuited | |Moderately suited |

 | Stickiness |0.50 | Slope |1.00 | Low strength |0.50

 | | | Stickiness |0.50 | Slope |0.50

 | | | | | |

913G: | | | | | |

 Marseilles----------|Moderately suited | |Unsuited | |Poorly suited |

 | Slope |0.50 | Slope |1.00 | Slope |1.00

 | Stickiness |0.50 | Stickiness |0.50 | Low strength |0.50

 | | | | | |
Rock Island County, Illinois 189

Table 9c.--Forestland Management--Continued

___________________________________________________________________________________________________

 | | |

 Map symbol | Suitability for | Suitability for | Suitability for use of

 and soil name | hand planting | mechanical planting | harvesting equipment

 | | |

 | | | _____________________________________________________________________________

 | Rating class and |Value| Rating class and |Value| Rating class and |Value

 | limiting features | | limiting features | | limiting features | ___________________________________________________________________________________________________

 | | | | | |

913G: | | | | | |

 Hickory-------------|Moderately suited | |Unsuited | |Poorly suited |

 | Slope |0.50 | Slope |1.00 | Slope |1.00

 | Stickiness |0.50 | Stickiness |0.50 | Low strength |0.50

 | | | | | |

917C2, 917D2: | | | | | |

 Oakville------------|Moderately suited | |Moderately suited | |Moderately suited |

 | Sandiness |0.50 | Slope |0.50 | Sandiness |0.50

 | | | Sandiness |0.50 | |

 | | | | | |

 Tell----------------|Well suited | |Moderately suited | |Moderately suited |

 | | | Slope |0.50 | Low strength |0.50

 | | | | | |

943D2: | | | | | |

 Seaton--------------|Well suited | |Moderately suited | |Moderately suited |

 | | | Slope |0.50 | Low strength |0.50

 | | | | | |

 Timula--------------|Well suited | |Moderately suited | |Moderately suited |

 | | | Slope |0.50 | Low strength |0.50

 | | | | | |

943F2: | | | | | |

 Seaton--------------|Well suited | |Unsuited | |Moderately suited |

 | | | Slope |1.00 | Low strength |0.50

 | | | | | Slope |0.50

 | | | | | |

 Timula--------------|Well suited | |Unsuited | |Moderately suited |

 | | | Slope |1.00 | Low strength |0.50

 | | | | | Slope |0.50

 | | | | | |

946D3: | | | | | |

 Hickory-------------|Moderately suited | |Moderately suited | |Moderately suited |

 | Stickiness |0.50 | Slope |0.50 | Low strength |0.50

 | | | Stickiness |0.50 | |

 | | | | | |

 Atlas---------------|Poorly suited | |Poorly suited | |Moderately suited |

 | Stickiness |0.75 | Stickiness |0.75 | Low strength |0.50

 | | | Slope |0.50 | Stickiness |0.50

 | | | | | |

946F3: | | | | | |

 Hickory-------------|Moderately suited | |Unsuited | |Moderately suited |

 | Stickiness |0.50 | Slope |1.00 | Low strength |0.50

 | | | Stickiness |0.50 | Slope |0.50

 | | | | | |

 Atlas---------------|Poorly suited | |Unsuited | |Moderately suited |

 | Stickiness |0.75 | Slope |1.00 | Low strength |0.50

 | | | Stickiness |0.75 | Slope |0.50

 | | | | | Stickiness |0.50

 | | | | | |

959G: | | | | | |

 Strawn--------------|Moderately suited | |Unsuited | |Poorly suited |

 | Slope |0.50 | Slope |1.00 | Slope |1.00

 | | | | | Low strength |0.50

 | | | | | |

 Chute---------------|Moderately suited | |Unsuited | |Poorly suited |

 | Sandiness |0.50 | Slope |1.00 | Slope |1.00

 | Slope |0.50 | Sandiness |0.50 | Sandiness |0.50

 | | | | | |

960D2, 960D3: | | | | | |

 Hickory-------------|Moderately suited | |Moderately suited | |Moderately suited |

 | Stickiness |0.50 | Slope |0.50 | Low strength |0.50

 | | | Stickiness |0.50 | |

 | | | | | |
190 Soil Survey of

Table 9c.--Forestland Management--Continued

___________________________________________________________________________________________________

 | | |

 Map symbol | Suitability for | Suitability for | Suitability for use of

 and soil name | hand planting | mechanical planting | harvesting equipment

 | | |

 | | | _____________________________________________________________________________

 | Rating class and |Value| Rating class and |Value| Rating class and |Value

 | limiting features | | limiting features | | limiting features | ___________________________________________________________________________________________________

 | | | | | |

960D2, 960D3: | | | | | |

 Sylvan--------------|Moderately suited | |Moderately suited | |Moderately suited |

 | Stickiness |0.50 | Slope |0.50 | Low strength |0.50

 | | | Stickiness |0.50 | |

 | | | | | |

 Fayette-------------|Moderately suited | |Moderately suited | |Moderately suited |

 | Stickiness |0.50 | Slope |0.50 | Low strength |0.50

 | | | Stickiness |0.50 | |

 | | | | | |

960F: | | | | | |

 Hickory-------------|Moderately suited | |Unsuited | |Moderately suited |

 | Stickiness |0.50 | Slope |1.00 | Low strength |0.50

 | | | Stickiness |0.50 | Slope |0.50

 | | | | | |

 Sylvan--------------|Moderately suited | |Unsuited | |Moderately suited |

 | Stickiness |0.50 | Slope |1.00 | Low strength |0.50

 | | | Stickiness |0.50 | Slope |0.50

 | | | | | |

 Fayette-------------|Moderately suited | |Unsuited | |Moderately suited |

 | Stickiness |0.50 | Slope |1.00 | Low strength |0.50

 | | | Stickiness |0.50 | Slope |0.50

 | | | | | |

962F: | | | | | |

 Sylvan--------------|Moderately suited | |Unsuited | |Moderately suited |

 | Stickiness |0.50 | Slope |1.00 | Low strength |0.50

 | | | Stickiness |0.50 | Slope |0.50

 | | | | | |

 Bold----------------|Well suited | |Unsuited | |Moderately suited |

 | | | Slope |1.00 | Low strength |0.50

 | | | | | Slope |0.50

 | | | | | | ___________________________________________________________________________________________________
Rock Island County, Illinois 191

Table 9d.--Forestland Management

(Only the soils suitable for production of commercial trees are listed.

 The information in this table indicates the dominant soil condition

 but does not eliminate the need for onsite investigation. The

 numbers in the value columns range from 0.01 to 1.00. The larger the

 value, the greater the limitation. See text for further explanation

 of ratings in this table)

_________________________________________________________________________

 | |

 Map symbol | Suitability for | Suitability for

 and soil name | mechanical site | mechanical site

 | preparation (surface) | preparation (deep)

 | | ___________________________________________________

 | Rating class and |Value| Rating class and |Value

 | limiting features | | limiting features | _________________________________________________________________________

 | | | |

8D2, 8D3: | | | |

 Hickory-------------|Well suited | |Well suited |

 | | | |

8F, 8F3: | | | |

 Hickory-------------|Poorly suited | |Poorly suited |

 | Slope |0.50 | Slope |0.50

 | | | |

19C3, 19D, 19D3: | | | |

 Sylvan--------------|Well suited | |Well suited |

 | | | |

19F, 19F3: | | | |

 Sylvan--------------|Poorly suited | |Poorly suited |

 | Slope |0.50 | Slope |0.50

 | | | |

88A: | | | |

 Sparta--------------|Well suited | |Well suited |

 | | | |

274B, 274B2, 274C2, | | | |

 274D2: | | | |

 Seaton-------------|Well suited | |Well suited |

 | | | |

278A: | | | |

 Stronghurst---------|Well suited | |Well suited |

 | | | |

279A, 279B: | | | |

 Rozetta-------------|Well suited | |Well suited |

 | | | |

280B, 280B2, 280C2, | | | |

 280C3: | | | |

 Fayette------------|Well suited | |Well suited |

 | | | |

570B, 570C3, 570D3: | | | |

 Martinsville--------|Well suited | |Well suited |

 | | | |

689B, 689D: | | | |

 Coloma--------------|Well suited | |Well suited |

 | | | |

741F: | | | |

 Oakville------------|Poorly suited | |Poorly suited |

 | Slope |0.50 | Slope |0.50

 | | | |

898F3: | | | |

 Hickory-------------|Poorly suited | |Poorly suited |

 | Slope |0.50 | Slope |0.50

 | | | |

 Sylvan--------------|Poorly suited | |Poorly suited |

 | Slope |0.50 | Slope |0.50

 | | | |
192 Soil Survey of

Table 9d.--Forestland Management--Continued

_________________________________________________________________________

 | |

 Map symbol | Suitability for | Suitability for

 and soil name | mechanical site | mechanical site

 | preparation (surface) | preparation (deep)

 | | ___________________________________________________

 | Rating class and |Value| Rating class and |Value

 | limiting features | | limiting features | _________________________________________________________________________

 | | | |

898G: | | | |

 Hickory-------------|Unsuited | |Unsuited |

 | Slope |1.00 | Slope |1.00

 | | | |

 Sylvan--------------|Unsuited | |Unsuited |

 | Slope |1.00 | Slope |1.00

 | | | |

913D2: | | | |

 Marseilles----------|Well suited | |Well suited |

 | | | |

 Hickory-------------|Well suited | |Well suited |

 | | | |

913F: | | | |

 Marseilles----------|Poorly suited | |Poorly suited |

 | Slope |0.50 | Slope |0.50

 | | | |

 Hickory-------------|Poorly suited | |Poorly suited |

 | Slope |0.50 | Slope |0.50

 | | | |

913G: | | | |

 Marseilles----------|Unsuited | |Unsuited |

 | Slope |1.00 | Slope |1.00

 | | | |

 Hickory-------------|Unsuited | |Unsuited |

 | Slope |1.00 | Slope |1.00

 | | | |

917C2, 917D2: | | | |

 Oakville------------|Well suited | |Well suited |

 | | | |

 Tell----------------|Well suited | |Well suited |

 | | | |

943D2: | | | |

 Seaton--------------|Well suited | |Well suited |

 | | | |

 Timula--------------|Well suited | |Well suited |

 | | | |

943F2: | | | |

 Seaton--------------|Poorly suited | |Poorly suited |

 | Slope |0.50 | Slope |0.50

 | | | |

 Timula--------------|Poorly suited | |Poorly suited |

 | Slope |0.50 | Slope |0.50

 | | | |

946D3: | | | |

 Hickory-------------|Well suited | |Well suited |

 | | | |

 Atlas---------------|Poorly suited | |Well suited |

 | Stickiness |0.50 | |

 | | | |

946F3: | | | |

 Hickory-------------|Poorly suited | |Poorly suited |

 | Slope |0.50 | Slope |0.50

 | | | |

 Atlas---------------|Poorly suited | |Poorly suited |

 | Slope |0.50 | Slope |0.50

 | Stickiness |0.50 | |

 | | | |
Rock Island County, Illinois 193

Table 9d.--Forestland Management--Continued

_________________________________________________________________________

 | |

 Map symbol | Suitability for | Suitability for

 and soil name | mechanical site | mechanical site

 | preparation (surface) | preparation (deep)

 | | ___________________________________________________

 | Rating class and |Value| Rating class and |Value

 | limiting features | | limiting features | _________________________________________________________________________

 | | | |

959G: | | | |

 Strawn--------------|Unsuited | |Unsuited |

 | Slope |1.00 | Slope |1.00

 | | | |

 Chute---------------|Unsuited | |Unsuited |

 | Slope |1.00 | Slope |1.00

 | | | |

960D2, 960D3: | | | |

 Hickory-------------|Well suited | |Well suited |

 | | | |

 Sylvan--------------|Well suited | |Well suited |

 | | | |

 Fayette-------------|Well suited | |Well suited |

 | | | |

960F: | | | |

 Hickory-------------|Poorly suited | |Poorly suited |

 | Slope |0.50 | Slope |0.50

 | | | |

 Sylvan--------------|Poorly suited | |Poorly suited |

 | Slope |0.50 | Slope |0.50

 | | | |

 Fayette-------------|Poorly suited | |Poorly suited |

 | Slope |0.50 | Slope |0.50

 | | | |

962F: | | | |

 Sylvan--------------|Poorly suited | |Poorly suited |

 | Slope |0.50 | Slope |0.50

 | | | |

 Bold----------------|Poorly suited | |Poorly suited |

 | Slope |0.50 | Slope |0.50

 | | | | _________________________________________________________________________
194 Soil Survey of

Table 9e.--Forestland Management

(Only the soils suitable for production of

 commercial trees are listed. The

 information in this table indicates the

 dominant soil condition but does not

 eliminate the need for onsite

 investigation. The numbers in the value

 columns range from 0.01 to 1.00. The

 larger the value, the greater the

 limitation. See text for further

 explanation of ratings in this table)

_______________________________________________

 |

 Map symbol | Potential for

 and soil name | seedling mortality

 | _________________________

 | Rating class and |Value

 | limiting features | _______________________________________________

 | |

8D2, 8D3, 8F, 8F3: | |

 Hickory-------------|Low |

 | |

19C3, 19D, 19D3, 19F,| |

 19F3: | |

 Sylvan-------------|Low |

 | |

88A: | |

 Sparta--------------|Low |

 | |

274B, 274B2, 274C2, | |

 274D2: | |

 Seaton-------------|Low |

 | |

278A: | |

 Stronghurst---------|Low |

 | |

279A, 279B: | |

 Rozetta-------------|Low |

 | |

280B, 280B2, 280C2, | |

 280C3: | |

 Fayette------------|Low |

 | |

570B, 570C3, 570D3: | |

 Martinsville--------|Low |

 | |

689B, 689D: | |

 Coloma--------------|Low |

 | |

741F: | |

 Oakville------------|Low |

 | |

898F3, 898G: | |

 Hickory-------------|Low |

 | |

 Sylvan--------------|Low |

 | |

913D2, 913F, 913G: | |

 Marseilles----------|Low |

 | |

 Hickory-------------|Low |

 | |

917C2, 917D2: | |

 Oakville------------|Low |

 | |

 Tell----------------|Low |

 | |
Rock Island County, Illinois 195

Table 9e.--Forestland Management--Continued

_______________________________________________

 |

 Map symbol | Potential for

 and soil name | seedling mortality

 | _________________________

 | Rating class and |Value

 | limiting features | _______________________________________________

 | |

943D2, 943F2: | |

 Seaton--------------|Low |

 | |

 Timula--------------|Low |

 | |

946D3, 946F3: | |

 Hickory-------------|Low |

 | |

 Atlas---------------|High |

 | Depth to |1.00

 | saturated zone |

 | |

959G: | |

 Strawn--------------|Low |

 | |

 Chute---------------|Moderate |

 | Calcareous |0.50

 | material |

 | |

960D2, 960D3, 960F: | |

 Hickory-------------|Low |

 | |

 Sylvan--------------|Low |

 | |

 Fayette-------------|Low |

 | |

962F: | |

 Sylvan--------------|Low |

 | |

 Bold----------------|Moderate |

 | Calcareous |0.50

 | material |

 | High pH |0.50

 | | _______________________________________________
Table 10.--Windbreaks and Environmental Plantings (Only the soils suitable for windbreaks and environmental plantings are listed. Absence of an entry indicate

 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 ____________________________________________________________________________________________________________ | | | | 8D2, 8D3, 8F, 8F3: | | | |  Hickory-----------------|American hazelnut, |American plum, |Washington hawthorn,|Douglas fir, Norway  | black chokeberry, | American | arborvitae, blue | spruce, black  | common elderberry, | witchhazel, | spruce, common | walnut, blackgum,  | common juniper, | blackhaw, common | persimmon, eastern | common hackberry,  | common ninebark, | chokecherry, common| redcedar, | green ash, norther | common winterberry,| serviceberry, | nannyberry, pecan, | red oak, pin oak,  | coralberry, | prairie crabapple, | white oak | tuliptree  | mapleleaf viburnum,| roughleaf dogwood, | |  | redosier dogwood, | smooth sumac, | |  | silky dogwood | southern arrowwood | |  | | | | 19C3, 19D, 19D3, 19F, | | | |  19F3: | | | |  Sylvan-----------------|American hazelnut, |American plum, |Washington hawthorn,|Douglas fir, Norway  | black chokeberry, | American | arborvitae, blue | spruce, black  | common elderberry, | witchhazel, | spruce, common | walnut, blackgum,  | common juniper, | blackhaw, common | persimmon, eastern | common hackberry,  | common ninebark, | chokecherry, common| redcedar, | green ash, norther | common winterberry,| serviceberry, | nannyberry, pecan, | red oak, pin oak,  | coralberry, | prairie crabapple, | white oak | tuliptree  | mapleleaf viburnum,| roughleaf dogwood, | |  | redosier dogwood, | smooth sumac, | |  | silky dogwood | southern arrowwood | |  | | | | 45A: | | | |  Denny-------------------|American |Cockspur hawthorn, |Arborvitae, |Green ash, red  | cranberrybush, | hazel alder, | blackgum, common | maple, river birch | black chokeberry, | nannyberry, | hackberry, green | swamp white oak,  | buttonbush, common | roughleaf dogwood | hawthorn, northern | sweetgum  | elderberry, common | | whitecedar, |  | ninebark, common | | shingle oak |  | winterberry, gray | | |  | dogwood, highbush | | |  | blueberry, northern| | |  | spicebush, redosier| | |  | dogwood, silky | | |  | dogwood | | |  | | | | 
Table 10.--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 _____________________________________________________________________________________________________________ | | | | 51A: | | | |  Muscatune---------------|American |Blackhaw, cockspur |Austrian pine, |Norway spruce,  | cranberrybush, | hawthorn, common | Douglas fir, | blackgum, common  | Canada yew, black | pawpaw, common | arborvitae, blue | hackberry, green  | chokeberry, common | serviceberry, | spruce, common | ash, red maple,  | elderberry, common | prairie crabapple, | persimmon, eastern | swamp white oak,  | juniper, common | roughleaf dogwood, | redcedar, green | sweetgum  | ninebark, common | rusty blackhaw, | hawthorn, |  | winterberry, | southern arrowwood,| nannyberry, pecan, |  | northern spicebush,| witchhazel | shingle oak |  | redosier dogwood, | | |  | silky dogwood | | |  | | | | 61A: | | | |  Atterberry--------------|American |Blackhaw, cockspur |Austrian pine, |Norway spruce,  | cranberrybush, | hawthorn, common | Douglas fir, | blackgum, common  | Canada yew, black | pawpaw, common | arborvitae, blue | hackberry, green  | chokeberry, common | serviceberry, | spruce, common | ash, red maple,  | elderberry, common | prairie crabapple, | persimmon, eastern | swamp white oak,  | juniper, common | roughleaf dogwood, | redcedar, green | sweetgum  | ninebark, common | rusty blackhaw, | hawthorn, |  | winterberry, | southern arrowwood,| nannyberry, pecan, |  | northern spicebush,| witchhazel | shingle oak |  | redosier dogwood, | | |  | silky dogwood | | |  | | | | 68A: | | | |  Sable-------------------|American |Cockspur hawthorn, |Arborvitae, |Green ash, red  | cranberrybush, | hazel alder, | blackgum, common | maple, river birch, | black chokeberry, | nannyberry, | hackberry, green | swamp white oak,  | buttonbush, common | roughleaf dogwood | hawthorn, northern | sweetgum  | elderberry, common | | whitecedar, |  | ninebark, common | | shingle oak |  | winterberry, gray | | |  | dogwood, highbush | | |  | blueberry, northern| | |  | spicebush, redosier| | |  | dogwood, silky | | |  | dogwood | | |  | | | | 
Table 10.--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 ____________________________________________________________________________________________________________ | | | | 86B, 86C2: | | | |  Osco--------------------|American hazelnut, |American plum, |Washington hawthorn,|Douglas fir, Norway  | black chokeberry, | American | arborvitae, blue | spruce, black  | common elderberry, | witchhazel, | spruce, common | walnut, blackgum,  | common juniper, | blackhaw, common | persimmon, eastern | common hackberry,  | common ninebark, | chokecherry, common| redcedar, | green ash, norther | common winterberry,| serviceberry, | nannyberry, pecan, | red oak, pin oak,  | coralberry, | prairie crabapple, | white oak | tuliptree  | mapleleaf viburnum,| roughleaf dogwood, | |  | redosier dogwood, | smooth sumac, | |  | silky dogwood | southern arrowwood | |  | | | | 87A, 87C2: | | | |  Dickinson---------------|American |American plum, bur |Black oak, common |Carolina poplar---- | cranberrybush, | oak, chinkapin oak,| hackberry, eastern |  | American hazelnut, | common | white pine, green |  | black chokeberry, | serviceberry, | ash |  | common chokecherry,| eastern redcedar, | |  | common elderberry, | nannyberry, prairie| |  | common juniper, | crabapple, | |  | coralberry, | roughleaf dogwood, | |  | mapleleaf viburnum,| smooth sumac | |  | silky dogwood | | |  | | | | 88A: | | | |  Sparta------------------|American hazelnut, |American plum, |Washington hawthorn,|Carolina poplar---- | common elderberry, | American | blue spruce, common|  | common winterberry,| witchhazel, | hackberry, eastern |  | coralberry, | alternateleaf | redcedar, green |  | mapleleaf viburnum,| dogwood, blackhaw, | ash, red maple |  | silky dogwood | common chokecherry,| |  | | common | |  | | serviceberry, | |  | | nannyberry, prairie| |  | | crabapple, | |  | | roughleaf dogwood, | |  | | southern arrowwood,| |  | | staghorn sumac | |  | | | | 
Table 10.--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 _____________________________________________________________________________________________________________ | | | | 172A: | | | |  Hoopeston---------------|American |Blackhaw, cockspur |Austrian pine, |Norway spruce,  | cranberrybush, | hawthorn, common | Douglas fir, | blackgum, common  | Canada yew, black | pawpaw, common | arborvitae, blue | hackberry, green  | chokeberry, common | serviceberry, | spruce, common | ash, red maple,  | elderberry, common | prairie crabapple, | persimmon, eastern | swamp white oak,  | juniper, common | roughleaf dogwood, | redcedar, green | sweetgum  | ninebark, common | rusty blackhaw, | hawthorn, |  | winterberry, | southern arrowwood,| nannyberry, pecan, |  | northern spicebush,| witchhazel | shingle oak |  | redosier dogwood, | | |  | silky dogwood | | |  | | | | 212B: | | | |  Thebes------------------|American hazelnut, |American plum, |Washington hawthorn,|Douglas fir, Norway  | black chokeberry, | American | arborvitae, blue | spruce, black  | common elderberry, | witchhazel, | spruce, common | walnut, blackgum,  | common juniper, | blackhaw, common | persimmon, eastern | common hackberry,  | common ninebark, | chokecherry, common| redcedar, | green ash, northern | common winterberry,| serviceberry, | nannyberry, pecan, | red oak, pin oak,  | coralberry, | prairie crabapple, | white oak | tuliptree  | mapleleaf viburnum,| roughleaf dogwood, | |  | redosier dogwood, | smooth sumac, | |  | silky dogwood | southern arrowwood | |  | | | | 250D: | | | |  Velma-------------------|American hazelnut, |American plum, |Washington hawthorn,|Douglas fir, Norway  | black chokeberry, | American | arborvitae, blue | spruce, black  | common elderberry, | witchhazel, | spruce, common | walnut, blackgum,  | common juniper, | blackhaw, common | persimmon, eastern | common hackberry,  | common ninebark, | chokecherry, common| redcedar, | green ash, northern | common winterberry,| serviceberry, | nannyberry, pecan, | red oak, pin oak,  | coralberry, | prairie crabapple, | white oak | tuliptree  | mapleleaf viburnum,| roughleaf dogwood, | |  | redosier dogwood, | smooth sumac, | |  | silky dogwood | southern arrowwood | |  | | | | 
Table 10.--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 ____________________________________________________________________________________________________________ | | | | 261A: | | | |  Niota-------------------|American |Cockspur hawthorn, |Arborvitae, |Green ash, red  | cranberrybush, | hazel alder, | blackgum, common | maple, river birch | black chokeberry, | nannyberry, | hackberry, green | swamp white oak,  | buttonbush, common | roughleaf dogwood | hawthorn, northern | sweetgum  | elderberry, common | | whitecedar, |  | ninebark, common | | shingle oak |  | winterberry, gray | | |  | dogwood, highbush | | |  | blueberry, northern| | |  | spicebush, redosier| | |  | dogwood, silky | | |  | dogwood | | |  | | | | 274B, 274B2, 274C2, | | | |  274D2: | | | |  Seaton-----------------|American hazelnut, |American plum, |Washington hawthorn,|Douglas fir, Norway  | black chokeberry, | American | arborvitae, blue | spruce, black  | common elderberry, | witchhazel, | spruce, common | walnut, blackgum,  | common juniper, | blackhaw, common | persimmon, eastern | common hackberry,  | common ninebark, | chokecherry, common| redcedar, | green ash, norther | common winterberry,| serviceberry, | nannyberry, pecan, | red oak, pin oak,  | coralberry, | prairie crabapple, | white oak | tuliptree  | mapleleaf viburnum,| roughleaf dogwood, | |  | redosier dogwood, | smooth sumac, | |  | silky dogwood | southern arrowwood | |  | | | | 275A: | | | |  Joy---------------------|American |Blackhaw, cockspur |Austrian pine, |Norway spruce,  | cranberrybush, | hawthorn, common | Douglas fir, | blackgum, common  | Canada yew, black | pawpaw, common | arborvitae, blue | hackberry, green  | chokeberry, common | serviceberry, | spruce, common | ash, red maple,  | elderberry, common | prairie crabapple, | persimmon, eastern | swamp white oak,  | juniper, common | roughleaf dogwood, | redcedar, green | sweetgum  | ninebark, common | rusty blackhaw, | hawthorn, |  | winterberry, | southern arrowwood,| nannyberry, pecan, |  | northern spicebush,| witchhazel | shingle oak |  | redosier dogwood, | | |  | silky dogwood | | |  | | | | 
Table 10.--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 _____________________________________________________________________________________________________________ | | | | 278A: | | | |  Stronghurst-------------|American |Blackhaw, cockspur |Austrian pine, |Norway spruce,  | cranberrybush, | hawthorn, common | Douglas fir, | blackgum, common  | Canada yew, black | pawpaw, common | arborvitae, blue | hackberry, green  | chokeberry, common | serviceberry, | spruce, common | ash, red maple,  | elderberry, common | prairie crabapple, | persimmon, eastern | swamp white oak,  | juniper, common | roughleaf dogwood, | redcedar, green | sweetgum  | ninebark, common | rusty blackhaw, | hawthorn, |  | winterberry, | southern arrowwood,| nannyberry, pecan, |  | northern spicebush,| witchhazel | shingle oak |  | redosier dogwood, | | |  | silky dogwood | | |  | | | | 279A, 279B: | | | |  Rozetta-----------------|American hazelnut, |American plum, |Washington hawthorn,|Douglas fir, Norway  | black chokeberry, | American | arborvitae, blue | spruce, black  | common elderberry, | witchhazel, | spruce, common | walnut, blackgum,  | common juniper, | blackhaw, common | persimmon, eastern | common hackberry,  | common ninebark, | chokecherry, common| redcedar, | green ash, northern | common winterberry,| serviceberry, | nannyberry, pecan, | red oak, pin oak,  | coralberry, | prairie crabapple, | white oak | tuliptree  | mapleleaf viburnum,| roughleaf dogwood, | |  | redosier dogwood, | smooth sumac, | |  | silky dogwood | southern arrowwood | |  | | | | 280B, 280B2, 280C2, | | | |  280C3: | | | |  Fayette----------------|American hazelnut, |American plum, |Washington hawthorn,|Douglas fir, black  | common elderberry, | American | arborvitae, blue | walnut, blackgum,  | common juniper, | witchhazel, | spruce, common | common hackberry,  | common ninebark, | blackhaw, common | persimmon, eastern | green ash, northern | common winterberry,| chokecherry, common| redcedar, | red oak, norway  | coralberry, | serviceberry, | nannyberry, pecan, | spruce, pin oak,  | mapleleaf viburnum,| prairie crabapple, | white oak | red pine, tuliptree | redosier dogwood, | roughleaf dogwood, | |  | silky dogwood | smooth sumac, | |  | | southern arrowwood | |  | | | | 
Table 10.--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 ____________________________________________________________________________________________________________ | | | | 317A: | | | |  Millsdale---------------|American |American plum, bur |Black oak, common |Carolina poplar---- | cranberrybush, | oak, chinkapin oak,| hackberry, eastern |  | American hazelnut, | common | white pine, green |  | black chokeberry, | serviceberry, | ash |  | common chokecherry,| eastern redcedar, | |  | common elderberry, | nannyberry, prairie| |  | common juniper, | crabapple, | |  | coralberry, | roughleaf dogwood, | |  | mapleleaf viburnum,| smooth sumac | |  | silky dogwood | | |  | | | | 430A, 430B: | | | |  Raddle------------------|American hazelnut, |American plum, |Washington hawthorn,|Douglas fir, Norway  | black chokeberry, | American | arborvitae, blue | spruce, black  | common elderberry, | witchhazel, | spruce, common | walnut, blackgum,  | common juniper, | blackhaw, common | persimmon, eastern | common hackberry,  | common ninebark, | chokecherry, common| redcedar, | green ash, norther | common winterberry,| serviceberry, | nannyberry, pecan, | red oak, pin oak,  | coralberry, | prairie crabapple, | white oak | tuliptree  | mapleleaf viburnum,| roughleaf dogwood, | |  | redosier dogwood, | smooth sumac, | |  | silky dogwood | southern arrowwood | |  | | | | 525A: | | | |  Joslin------------------|American hazelnut, |American plum, |Douglas fir, |Norway spruce,  | black chokeberry, | American | arborvitae, black | common hackberry,  | common winterberry,| witchhazel, Arnold | walnut, blackgum, | pin oak, tuliptree  | coralberry, gray | hawthorn, blackhaw,| blue spruce, bur |  | dogwood, mapleleaf | common chokecherry,| oak, eastern |  | viburnum | common | redcedar, green |  | | serviceberry, | ash, pecan |  | | prairie crabapple | |  | | | | 567C2, 567D2: | | | |  Elkhart-----------------|American hazelnut, |American plum, |Washington hawthorn,|Douglas fir, Norway  | black chokeberry, | American | arborvitae, blue | spruce, black  | common elderberry, | witchhazel, | spruce, common | walnut, blackgum,  | common juniper, | blackhaw, common | persimmon, eastern | common hackberry,  | common ninebark, | chokecherry, common| redcedar, | green ash, norther | common winterberry,| serviceberry, | nannyberry, pecan, | red oak, pin oak,  | coralberry, | prairie crabapple, | white oak | tuliptree  | mapleleaf viburnum,| roughleaf dogwood, | |  | redosier dogwood, | smooth sumac, | |  | silky dogwood | southern arrowwood | |  | | | | 
Table 10.--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 _____________________________________________________________________________________________________________ | | | | 570B, 570C3, 570D3: | | | |  Martinsville------------|American hazelnut, |American plum, |Washington hawthorn,|Douglas fir, Norway  | black chokeberry, | American | arborvitae, blue | spruce, black  | common elderberry, | witchhazel, | spruce, common | walnut, blackgum,  | common juniper, | blackhaw, common | persimmon, eastern | common hackberry,  | common ninebark, | chokecherry, common| redcedar, | green ash, northern | common winterberry,| serviceberry, | nannyberry, pecan, | red oak, pin oak,  | coralberry, | prairie crabapple, | white oak | tuliptree  | mapleleaf viburnum,| roughleaf dogwood, | |  | redosier dogwood, | smooth sumac, | |  | silky dogwood | southern arrowwood | |  | | | | 647A: | | | |  Lawler------------------|American |Blackhaw, cockspur |Austrian pine, |Norway spruce,  | cranberrybush, | hawthorn, common | Douglas fir, | blackgum, common  | Canada yew, black | pawpaw, common | arborvitae, blue | hackberry, green  | chokeberry, common | serviceberry, | spruce, common | ash, red maple,  | elderberry, common | prairie crabapple, | persimmon, eastern | swamp white oak,  | juniper, common | roughleaf dogwood, | redcedar, green | sweetgum  | ninebark, common | rusty blackhaw, | hawthorn, |  | winterberry, | southern arrowwood,| nannyberry, pecan, |  | northern spicebush,| witchhazel | shingle oak |  | redosier dogwood, | | |  | silky dogwood | | |  | | | | 671A, 671B: | | | |  Biggsville--------------|American hazelnut, |American plum, |Washington hawthorn,|Douglas fir, Norway  | black chokeberry, | American | arborvitae, blue | spruce, black  | common elderberry, | witchhazel, | spruce, common | walnut, blackgum,  | common juniper, | blackhaw, common | persimmon, eastern | common hackberry,  | common ninebark, | chokecherry, common| redcedar, | green ash, northern | common winterberry,| serviceberry, | nannyberry, pecan, | red oak, pin oak,  | coralberry, | prairie crabapple, | white oak | tuliptree  | mapleleaf viburnum,| roughleaf dogwood, | |  | redosier dogwood, | smooth sumac, | |  | silky dogwood | southern arrowwood | |  | | | | 675A, 675B: | | | |  Greenbush---------------|American hazelnut, |American plum, |Washington hawthorn,|Douglas fir, Norway  | black chokeberry, | American | arborvitae, blue | spruce, black  | common elderberry, | witchhazel, | spruce, common | walnut, blackgum,  | common juniper, | blackhaw, common | persimmon, eastern | common hackberry,  | common ninebark, | chokecherry, common| redcedar, | green ash, northern | common winterberry,| serviceberry, | nannyberry, pecan, | red oak, pin oak,  | coralberry, | prairie crabapple, | white oak | tuliptree  | mapleleaf viburnum,| roughleaf dogwood, | |  | redosier dogwood, | smooth sumac, | |  | silky dogwood | southern arrowwood | |  | | | | 
Table 10.--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 ____________________________________________________________________________________________________________ | | | | 689B, 689D: | | | |  Coloma------------------|American hazelnut, |American plum, |Washington hawthorn,|Carolina poplar---- | common elderberry, | American | blue spruce, common|  | common winterberry,| witchhazel, | hackberry, eastern |  | coralberry, | alternateleaf | redcedar, green |  | mapleleaf viburnum,| dogwood, blackhaw, | ash, red maple |  | silky dogwood | common chokecherry,| |  | | common | |  | | serviceberry, | |  | | nannyberry, prairie| |  | | crabapple, | |  | | roughleaf dogwood, | |  | | southern arrowwood,| |  | | staghorn sumac | |  | | | | 705A: | | | |  Buckhart----------------|American hazelnut, |American plum, |Washington hawthorn,|Douglas fir, Norway  | black chokeberry, | American | arborvitae, blue | spruce, black  | common elderberry, | witchhazel, | spruce, common | walnut, blackgum,  | common juniper, | blackhaw, common | persimmon, eastern | common hackberry,  | common ninebark, | chokecherry, common| redcedar, | green ash, norther | common winterberry,| serviceberry, | nannyberry, pecan, | red oak, pin oak,  | coralberry, | prairie crabapple, | white oak | tuliptree  | mapleleaf viburnum,| roughleaf dogwood, | |  | redosier dogwood, | smooth sumac, | |  | silky dogwood | southern arrowwood | |  | | | | 727A: | | | |  Waukee------------------|American |American plum, bur |Black oak, common |Carolina poplar---- | cranberrybush, | oak, chinkapin oak,| hackberry, eastern |  | American hazelnut, | common | white pine, green |  | black chokeberry, | serviceberry, | ash |  | common chokecherry,| eastern redcedar, | |  | common elderberry, | nannyberry, prairie| |  | common juniper, | crabapple, | |  | coralberry, | roughleaf dogwood, | |  | mapleleaf viburnum,| smooth sumac | |  | silky dogwood | | |  | | | | 
Table 10.--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 _____________________________________________________________________________________________________________ | | | | 741F: | | | |  Oakville----------------|American hazelnut, |American plum, |Washington hawthorn,|Carolina poplar----- | common elderberry, | American | blue spruce, common|  | common winterberry,| witchhazel, | hackberry, eastern |  | coralberry, | alternateleaf | redcedar, green |  | mapleleaf viburnum,| dogwood, blackhaw, | ash, red maple |  | silky dogwood | common chokecherry,| |  | | common | |  | | serviceberry, | |  | | nannyberry, prairie| |  | | crabapple, | |  | | roughleaf dogwood, | |  | | southern arrowwood,| |  | | staghorn sumac | |  | | | | 763A, 763B: | | | |  Joslin------------------|American hazelnut, |American plum, |Washington hawthorn,|Douglas fir, Norway  | black chokeberry, | American | arborvitae, blue | spruce, black  | common elderberry, | witchhazel, | spruce, common | walnut, blackgum,  | common juniper, | blackhaw, common | persimmon, eastern | common hackberry,  | common ninebark, | chokecherry, common| redcedar, | green ash, northern | common winterberry,| serviceberry, | nannyberry, pecan, | red oak, pin oak,  | coralberry, | prairie crabapple, | white oak | tuliptree  | mapleleaf viburnum,| roughleaf dogwood, | |  | redosier dogwood, | smooth sumac, | |  | silky dogwood | southern arrowwood | |  | | | | 764A, 764C: | | | |  Coyne-------------------|American hazelnut, |American plum, |Douglas fir, |Norway spruce,  | black chokeberry, | American | arborvitae, black | common hackberry,  | common winterberry,| witchhazel, Arnold | walnut, blackgum, | pin oak, red pine,  | coralberry, gray | hawthorn, blackhaw,| blue spruce, bur | tuliptree  | dogwood, mapleleaf | common chokecherry,| oak, eastern |  | viburnum | common | redcedar, green |  | | serviceberry, | ash, pecan |  | | prairie crabapple | |  | | | | 774A: | | | |  Saude-------------------|American |American plum, bur |Black oak, common |Carolina poplar----- | cranberrybush, | oak, chinkapin oak,| hackberry, eastern |  | American hazelnut, | common | white pine, green |  | black chokeberry, | serviceberry, | ash, red pine |  | common chokecherry,| eastern redcedar, | |  | common elderberry, | nannyberry, prairie| |  | common juniper, | crabapple, | |  | coralberry, | roughleaf dogwood, | |  | mapleleaf viburnum,| smooth sumac | |  | silky dogwood | | |  | | | | 
Table 10.--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 ____________________________________________________________________________________________________________ | | | | 898F3, 898G: | | | |  Hickory-----------------|American hazelnut, |American plum, |Washington hawthorn,|Douglas fir, Norway  | black chokeberry, | American | arborvitae, blue | spruce, black  | common elderberry, | witchhazel, | spruce, common | walnut, blackgum,  | common juniper, | blackhaw, common | persimmon, eastern | common hackberry,  | common ninebark, | chokecherry, common| redcedar, | green ash, norther | common winterberry,| serviceberry, | nannyberry, pecan, | red oak, pin oak,  | coralberry, | prairie crabapple, | white oak | tuliptree  | mapleleaf viburnum,| roughleaf dogwood, | |  | redosier dogwood, | smooth sumac, | |  | silky dogwood | southern arrowwood | |  | | | |  Sylvan------------------|American hazelnut, |American plum, |Washington hawthorn,|Douglas fir, Norway  | black chokeberry, | American | arborvitae, blue | spruce, black  | common elderberry, | witchhazel, | spruce, common | walnut, blackgum,  | common juniper, | blackhaw, common | persimmon, eastern | common hackberry,  | common ninebark, | chokecherry, common| redcedar, | green ash, norther | common winterberry,| serviceberry, | nannyberry, pecan, | red oak, pin oak,  | coralberry, | prairie crabapple, | white oak | tuliptree  | mapleleaf viburnum,| roughleaf dogwood, | |  | redosier dogwood, | smooth sumac, | |  | silky dogwood | southern arrowwood | |  | | | | 913D2, 913F, 913G: | | | |  Marseilles--------------|American |American plum, bur |Black oak, common |Carolina poplar---- | cranberrybush, | oak, chinkapin oak,| hackberry, eastern |  | American hazelnut, | common | white pine, green |  | black chokeberry, | serviceberry, | ash |  | common chokecherry,| eastern redcedar, | |  | common elderberry, | nannyberry, prairie| |  | common juniper, | crabapple, | |  | coralberry, | roughleaf dogwood, | |  | mapleleaf viburnum,| smooth sumac | |  | silky dogwood | | |  | | | |  Hickory-----------------|American hazelnut, |American plum, |Washington hawthorn,|Douglas fir, Norway  | black chokeberry, | American | arborvitae, blue | spruce, black  | common elderberry, | witchhazel, | spruce, common | walnut, blackgum,  | common juniper, | blackhaw, common | persimmon, eastern | common hackberry,  | common ninebark, | chokecherry, common| redcedar, | green ash, norther | common winterberry,| serviceberry, | nannyberry, pecan, | red oak, pin oak,  | coralberry, | prairie crabapple, | white oak | tuliptree  | mapleleaf viburnum,| roughleaf dogwood, | |  | redosier dogwood, | smooth sumac, | |  | silky dogwood | southern arrowwood | |  | | | | 
Table 10.--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 _____________________________________________________________________________________________________________ | | | | 917C2, 917D2: | | | |  Oakville----------------|American hazelnut, |American plum, |Washington hawthorn,|Carolina poplar----- | common elderberry, | American | blue spruce, common|  | common winterberry,| witchhazel, | hackberry, eastern |  | coralberry, | alternateleaf | redcedar, green |  | mapleleaf viburnum,| dogwood, blackhaw, | ash, red maple |  | silky dogwood | common chokecherry,| |  | | common | |  | | serviceberry, | |  | | nannyberry, prairie| |  | | crabapple, | |  | | roughleaf dogwood, | |  | | southern arrowwood,| |  | | staghorn sumac | |  | | | |  Tell--------------------|American |American plum, bur |Black oak, common |Carolina poplar----- | cranberrybush, | oak, chinkapin oak,| hackberry, eastern |  | American hazelnut, | common | white pine, green |  | black chokeberry, | serviceberry, | ash |  | common chokecherry,| eastern redcedar, | |  | common elderberry, | nannyberry, prairie| |  | common juniper, | crabapple, | |  | coralberry, | roughleaf dogwood, | |  | mapleleaf viburnum,| smooth sumac | |  | silky dogwood | | |  | | | | 943D2, 943F2: | | | |  Seaton------------------|American hazelnut, |American plum, |Washington hawthorn,|Douglas fir, Norway  | black chokeberry, | American | arborvitae, blue | spruce, black  | common elderberry, | witchhazel, | spruce, common | walnut, blackgum,  | common juniper, | blackhaw, common | persimmon, eastern | common hackberry,  | common ninebark, | chokecherry, common| redcedar, | green ash, northern | common winterberry,| serviceberry, | nannyberry, pecan, | red oak, pin oak,  | coralberry, | prairie crabapple, | white oak | tuliptree  | mapleleaf viburnum,| roughleaf dogwood, | |  | redosier dogwood, | smooth sumac, | |  | silky dogwood | southern arrowwood | |  | | | |  Timula------------------|American hazelnut, |American plum, |Washington hawthorn,|Douglas fir, Norway  | black chokeberry, | American | arborvitae, blue | spruce, black  | common elderberry, | witchhazel, | spruce, common | walnut, blackgum,  | common juniper, | blackhaw, common | persimmon, eastern | common hackberry,  | common ninebark, | chokecherry, common| redcedar, | green ash, northern | common winterberry,| serviceberry, | nannyberry, pecan, | red oak, pin oak,  | coralberry, | prairie crabapple, | white oak | tuliptree  | mapleleaf viburnum,| roughleaf dogwood, | |  | redosier dogwood, | smooth sumac, | |  | silky dogwood | southern arrowwood | |  | | | | 
Table 10.--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 _____________________________________________________________________________________________________________ | | | | 944D2: | | | |  Velma-------------------|American hazelnut, |American plum, |Washington hawthorn,|Douglas fir, Norway  | black chokeberry, | American | arborvitae, blue | spruce, black  | common elderberry, | witchhazel, | spruce, common | walnut, blackgum,  | common juniper, | blackhaw, common | persimmon, eastern | common hackberry,  | common ninebark, | chokecherry, common| redcedar, | green ash, northern | common winterberry,| serviceberry, | nannyberry, pecan, | red oak, pin oak,  | coralberry, | prairie crabapple, | white oak | tuliptree  | mapleleaf viburnum,| roughleaf dogwood, | |  | redosier dogwood, | smooth sumac, | |  | silky dogwood | southern arrowwood | |  | | | |  Coatsburg---------------|American |Cockspur hawthorn, |Arborvitae, |Green ash, red  | cranberrybush, | hazel alder, | blackgum, common | maple, river birch, | black chokeberry, | nannyberry, | hackberry, green | swamp white oak,  | buttonbush, common | roughleaf dogwood | hawthorn, northern | sweetgum  | elderberry, common | | whitecedar, |  | ninebark, common | | shingle oak |  | winterberry, gray | | |  | dogwood, highbush | | |  | blueberry, northern| | |  | spicebush, redosier| | |  | dogwood, silky | | |  | dogwood | | |  | | | | 946D3, 946F3: | | | |  Hickory-----------------|American hazelnut, |American plum, |Washington hawthorn,|Douglas fir, Norway  | black chokeberry, | American | arborvitae, blue | spruce, black  | common elderberry, | witchhazel, | spruce, common | walnut, blackgum,  | common juniper, | blackhaw, common | persimmon, eastern | common hackberry,  | common ninebark, | chokecherry, common| redcedar, | green ash, northern | common winterberry,| serviceberry, | nannyberry, pecan, | red oak, pin oak,  | coralberry, | prairie crabapple, | white oak | tuliptree  | mapleleaf viburnum,| roughleaf dogwood, | |  | redosier dogwood, | smooth sumac, | |  | silky dogwood | southern arrowwood | |  | | | | 
Table 10.--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 _____________________________________________________________________________________________________________ | | | | 946D3, 946F3: | | | |  Atlas-------------------|American |American plum, |Virginia pine, |Norway spruce------- | cranberrybush, | American | arborvitae, black |  | American hazelnut, | witchhazel, | oak, blackgum, bur |  | black chokeberry, | Washington | oak, chinkapin oak,|  | common juniper, | hawthorn, blackhaw,| common hackberry, |  | coralberry, gray | common chokecherry,| eastern redcedar, |  | dogwood, mapleleaf | common | green ash |  | viburnum, silky | serviceberry, | |  | dogwood | nannyberry, prairie| |  | | crabapple, | |  | | roughleaf dogwood, | |  | | staghorn sumac | |  | | | | 959G: | | | |  Strawn------------------|American hazelnut, |American plum, |Washington hawthorn,|Douglas fir, Norway  | black chokeberry, | American | arborvitae, blue | spruce, black  | common elderberry, | witchhazel, | spruce, common | walnut, blackgum,  | common juniper, | blackhaw, common | persimmon, eastern | common hackberry,  | common ninebark, | chokecherry, common| redcedar, | green ash, northern | common winterberry,| serviceberry, | nannyberry, pecan, | red oak, pin oak,  | coralberry, | prairie crabapple, | white oak | tuliptree  | mapleleaf viburnum,| roughleaf dogwood, | |  | redosier dogwood, | smooth sumac, | |  | silky dogwood | southern arrowwood | |  | | | |  Chute-------------------|American hazelnut, |American plum, |Washington hawthorn,|Carolina poplar----- | common elderberry, | American | blue spruce, common|  | common winterberry,| witchhazel, | hackberry, eastern |  | coralberry, | alternateleaf | redcedar, green |  | mapleleaf viburnum,| dogwood, blackhaw, | ash, red maple |  | silky dogwood | common chokecherry,| |  | | common | |  | | serviceberry, | |  | | nannyberry, prairie| |  | | crabapple, | |  | | roughleaf dogwood, | |  | | southern arrowwood,| |  | | staghorn sumac | |  | | | | 
Table 10.--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 ____________________________________________________________________________________________________________ | | | | 960D2, 960D3, 960F: | | | |  Hickory-----------------|American hazelnut, |American plum, |Washington hawthorn,|Douglas fir, Norway  | black chokeberry, | American | arborvitae, blue | spruce, black  | common elderberry, | witchhazel, | spruce, common | walnut, blackgum,  | common juniper, | blackhaw, common | persimmon, eastern | common hackberry,  | common ninebark, | chokecherry, common| redcedar, | green ash, norther | common winterberry,| serviceberry, | nannyberry, pecan, | red oak, pin oak,  | coralberry, | prairie crabapple, | white oak | tuliptree  | mapleleaf viburnum,| roughleaf dogwood, | |  | redosier dogwood, | smooth sumac, | |  | silky dogwood | southern arrowwood | |  | | | |  Sylvan------------------|American hazelnut, |American plum, |Washington hawthorn,|Douglas fir, Norway  | black chokeberry, | American | arborvitae, blue | spruce, black  | common elderberry, | witchhazel, | spruce, common | walnut, blackgum,  | common juniper, | blackhaw, common | persimmon, eastern | common hackberry,  | common ninebark, | chokecherry, common| redcedar, | green ash, norther | common winterberry,| serviceberry, | nannyberry, pecan, | red oak, pin oak,  | coralberry, | prairie crabapple, | white oak | tuliptree  | mapleleaf viburnum,| roughleaf dogwood, | |  | redosier dogwood, | smooth sumac, | |  | silky dogwood | southern arrowwood | |  | | | |  Fayette-----------------|American hazelnut, |American plum, |Washington hawthorn,|Douglas fir, Norway  | black chokeberry, | American | arborvitae, blue | spruce, black  | common elderberry, | witchhazel, | spruce, common | walnut, blackgum,  | common juniper, | blackhaw, common | persimmon, eastern | common hackberry,  | common ninebark, | chokecherry, common| redcedar, | green ash, norther | common winterberry,| serviceberry, | nannyberry, pecan, | red oak, pin oak,  | coralberry, | prairie crabapple, | white oak | tuliptree  | mapleleaf viburnum,| roughleaf dogwood, | |  | redosier dogwood, | smooth sumac, | |  | silky dogwood | southern arrowwood | |  | | | | 961A: | | | |  Burkhardt---------------|American |American plum, bur |Black oak, common |Carolina poplar---- | cranberrybush, | oak, chinkapin oak,| hackberry, eastern |  | American hazelnut, | common | white pine, green |  | black chokeberry, | serviceberry, | ash, red pine |  | common chokecherry,| eastern redcedar, | |  | common elderberry, | nannyberry, prairie| |  | common juniper, | crabapple, | |  | coralberry, | roughleaf dogwood, | |  | mapleleaf viburnum,| smooth sumac | |  | silky dogwood | | |  | | | | 
Table 10.--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 _____________________________________________________________________________________________________________ | | | | 961A: | | | |  Saude-------------------|American |American plum, bur |Black oak, common |Carolina poplar----- | cranberrybush, | oak, chinkapin oak,| hackberry, eastern |  | American hazelnut, | common | white pine, green |  | black chokeberry, | serviceberry, | ash, red pine |  | common chokecherry,| eastern redcedar, | |  | common elderberry, | nannyberry, prairie| |  | common juniper, | crabapple, | |  | coralberry, | roughleaf dogwood, | |  | mapleleaf viburnum,| smooth sumac | |  | silky dogwood | | |  | | | | 962F: | | | |  Sylvan------------------|American hazelnut, |American plum, |Washington hawthorn,|Douglas fir, Norway  | black chokeberry, | American | arborvitae, blue | spruce, black  | common elderberry, | witchhazel, | spruce, common | walnut, blackgum,  | common juniper, | blackhaw, common | persimmon, eastern | common hackberry,  | common ninebark, | chokecherry, common| redcedar, | green ash, northern | common winterberry,| serviceberry, | nannyberry, pecan, | red oak, pin oak,  | coralberry, | prairie crabapple, | white oak | tuliptree  | mapleleaf viburnum,| roughleaf dogwood, | |  | redosier dogwood, | smooth sumac, | |  | silky dogwood | southern arrowwood | |  | | | |  Bold--------------------|American hazelnut, |Blackhaw, common |American sycamore, |Carolina poplar,  | common winterberry,| chokecherry, common| arborvitae, blue | eastern cottonwood  | gray dogwood, | pawpaw, nannyberry,| spruce, bur oak, |  | redosier dogwood | roughleaf dogwood, | chinkapin oak, |  | | silky dogwood | common hackberry, |  | | | eastern redcedar, |  | | | green ash |  | | | | 1076A: | | | |  Otter-------------------|American |Cockspur hawthorn, |Arborvitae, |Green ash, red  | cranberrybush, | hazel alder, | blackgum, common | maple, river birch, | black chokeberry, | nannyberry, | hackberry, green | swamp white oak,  | buttonbush, common | roughleaf dogwood | hawthorn, northern | sweetgum  | elderberry, common | | whitecedar, |  | ninebark, common | | shingle oak |  | winterberry, gray | | |  | dogwood, highbush | | |  | blueberry, northern| | |  | spicebush, redosier| | |  | dogwood, silky | | |  | dogwood | | |  | | | | 
Table 10.--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 ____________________________________________________________________________________________________________ | | | | 1082A: | | | |  Millington--------------|American |Cockspur hawthorn, |Arborvitae, |Green ash, red  | cranberrybush, | hazel alder, | blackgum, common | maple, river birch | black chokeberry, | nannyberry, | hackberry, green | swamp white oak,  | buttonbush, common | roughleaf dogwood | hawthorn, northern | sweetgum  | elderberry, common | | whitecedar, |  | ninebark, common | | shingle oak |  | winterberry, gray | | |  | dogwood, highbush | | |  | blueberry, northern| | |  | spicebush, redosier| | |  | dogwood, silky | | |  | dogwood | | |  | | | | 1107A: | | | |  Sawmill-----------------|American |Cockspur hawthorn, |Arborvitae, |Green ash, red  | cranberrybush, | hazel alder, | blackgum, common | maple, river birch | black chokeberry, | nannyberry, | hackberry, green | swamp white oak,  | buttonbush, common | roughleaf dogwood | hawthorn, northern | sweetgum  | elderberry, common | | whitecedar, |  | ninebark, common | | shingle oak |  | winterberry, gray | | |  | dogwood, highbush | | |  | blueberry, northern| | |  | spicebush, redosier| | |  | dogwood, silky | | |  | dogwood | | |  | | | | 1334A: | | | |  Birds-------------------|American |Cockspur hawthorn, |Arborvitae, |Green ash, red  | cranberrybush, | hazel alder, | blackgum, common | maple, river birch | black chokeberry, | nannyberry, | hackberry, green | swamp white oak,  | buttonbush, common | roughleaf dogwood | hawthorn, northern | sweetgum  | elderberry, common | | whitecedar, |  | ninebark, common | | shingle oak |  | winterberry, gray | | |  | dogwood, highbush | | |  | blueberry, northern| | |  | spicebush, redosier| | |  | dogwood, silky | | |  | dogwood | | |  | | | | 1400A: | | | |  Calco-------------------|Common winterberry, |Common pawpaw, |Arborvitae, bur oak,|Carolina poplar,  | gray dogwood, | nannyberry, | common hackberry, | eastern cottonwood | redosier dogwood | roughleaf dogwood, | eastern redcedar, | green ash  | | silky dogwood | green hawthorn |  | | | | 
Table 10.--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 _____________________________________________________________________________________________________________ | | | | 1654A: | | | |  Moline------------------|American |Cockspur hawthorn, |Arborvitae, |Green ash, red  | cranberrybush, | hazel alder, | blackgum, common | maple, river birch, | black chokeberry, | nannyberry, | hackberry, green | swamp white oak,  | buttonbush, common | roughleaf dogwood | hawthorn, northern | sweetgum  | elderberry, common | | whitecedar, |  | ninebark, common | | shingle oak |  | winterberry, gray | | |  | dogwood, highbush | | |  | blueberry, northern| | |  | spicebush, redosier| | |  | dogwood, silky | | |  | dogwood | | |  | | | | 3074A: | | | |  Radford-----------------|American |Blackhaw, cockspur |Austrian pine, |Norway spruce,  | cranberrybush, | hawthorn, common | Douglas fir, | blackgum, common  | Canada yew, black | pawpaw, common | arborvitae, blue | hackberry, green  | chokeberry, common | serviceberry, | spruce, common | ash, red maple,  | elderberry, common | prairie crabapple, | persimmon, eastern | swamp white oak,  | juniper, common | roughleaf dogwood, | redcedar, green | sweetgum  | ninebark, common | rusty blackhaw, | hawthorn, |  | winterberry, | southern arrowwood,| nannyberry, pecan, |  | northern spicebush,| witchhazel | shingle oak |  | redosier dogwood, | | |  | silky dogwood | | |  | | | | 3076A: | | | |  Otter-------------------|American |Cockspur hawthorn, |Arborvitae, |Green ash, red  | cranberrybush, | hazel alder, | blackgum, common | maple, river birch, | black chokeberry, | nannyberry, | hackberry, green | swamp white oak,  | buttonbush, common | roughleaf dogwood | hawthorn, northern | sweetgum  | elderberry, common | | whitecedar, |  | ninebark, common | | shingle oak |  | winterberry, gray | | |  | dogwood, highbush | | |  | blueberry, northern| | |  | spicebush, redosier| | |  | dogwood, silky | | |  | dogwood | | |  | | | | 
Table 10.--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 ____________________________________________________________________________________________________________ | | | | 3082A: | | | |  Millington--------------|American |Cockspur hawthorn, |Arborvitae, |Green ash, red  | cranberrybush, | hazel alder, | blackgum, common | maple, river birch | black chokeberry, | nannyberry, | hackberry, green | swamp white oak,  | buttonbush, common | roughleaf dogwood | hawthorn, northern | sweetgum  | elderberry, common | | whitecedar, |  | ninebark, common | | shingle oak |  | winterberry, gray | | |  | dogwood, highbush | | |  | blueberry, northern| | |  | spicebush, redosier| | |  | dogwood, silky | | |  | dogwood | | |  | | | | 3083A: | | | |  Wabash------------------|American |Cockspur hawthorn, |Arborvitae, |Green ash, red  | cranberrybush, | hazel alder, | blackgum, common | maple, river birch | black chokeberry, | nannyberry, | hackberry, green | swamp white oak,  | buttonbush, common | roughleaf dogwood | hawthorn, northern | sweetgum  | elderberry, common | | whitecedar, |  | ninebark, common | | shingle oak |  | winterberry, gray | | |  | dogwood, highbush | | |  | blueberry, northern| | |  | spicebush, redosier| | |  | dogwood, silky | | |  | dogwood | | |  | | | | 3107A: | | | |  Sawmill-----------------|American |Cockspur hawthorn, |Arborvitae, |Green ash, red  | cranberrybush, | hazel alder, | blackgum, common | maple, river birch | black chokeberry, | nannyberry, | hackberry, green | swamp white oak,  | buttonbush, common | roughleaf dogwood | hawthorn, northern | sweetgum  | elderberry, common | | whitecedar, |  | ninebark, common | | shingle oak |  | winterberry, gray | | |  | dogwood, highbush | | |  | blueberry, northern| | |  | spicebush, redosier| | |  | dogwood, silky | | |  | dogwood | | |  | | | | 
Table 10.--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 _____________________________________________________________________________________________________________ | | | | 3239A: | | | |  Dorchester--------------|Common winterberry, |Blackhaw, common |Austrian pine, |Carolina poplar,  | gray dogwood, | pawpaw, common | arborvitae, bur | eastern cottonwood  | redosier dogwood, | serviceberry, downy| oak, common |  | silky dogwood | arrowwood, | hackberry, eastern |  | | roughleaf dogwood, | redcedar, green |  | | southern arrowwood | ash, green |  | | | hawthorn, |  | | | nannyberry |  | | | | 3400A: | | | |  Calco-------------------|Common winterberry, |Common pawpaw, |Arborvitae, bur oak,|Carolina poplar,  | gray dogwood, | nannyberry, | common hackberry, | eastern cottonwood, | redosier dogwood | roughleaf dogwood, | eastern redcedar, | green ash  | | silky dogwood | green hawthorn |  | | | | 3415A: | | | |  Orion-------------------|American |Blackhaw, cockspur |Austrian pine, |Norway spruce,  | cranberrybush, | hawthorn, common | Douglas fir, | blackgum, common  | Canada yew, black | pawpaw, common | arborvitae, blue | hackberry, green  | chokeberry, common | serviceberry, | spruce, common | ash, red maple,  | elderberry, common | prairie crabapple, | persimmon, eastern | swamp white oak,  | juniper, common | roughleaf dogwood, | redcedar, green | sweetgum  | ninebark, common | rusty blackhaw, | hawthorn, |  | winterberry, | southern arrowwood,| nannyberry, pecan, |  | northern spicebush,| witchhazel | shingle oak |  | redosier dogwood, | | |  | silky dogwood | | |  | | | | 3428A: | | | |  Coffeen-----------------|Silky dogwood-------|American |Washington hawthorn,|Austrian pine,  | | cranberrybush | blue spruce, | Norway spruce  | | | northern |  | | | whitecedar, white |  | | | fir |  | | | | 3451A: | | | |  Lawson------------------|American |Blackhaw, cockspur |Austrian pine, |Norway spruce,  | cranberrybush, | hawthorn, common | Douglas fir, | blackgum, common  | Canada yew, black | pawpaw, common | arborvitae, blue | hackberry, green  | chokeberry, common | serviceberry, | spruce, common | ash, red maple,  | elderberry, common | prairie crabapple, | persimmon, eastern | swamp white oak,  | juniper, common | roughleaf dogwood, | redcedar, green | sweetgum  | ninebark, common | rusty blackhaw, | hawthorn, |  | winterberry, | southern arrowwood,| nannyberry, pecan, |  | northern spicebush,| witchhazel | shingle oak |  | redosier dogwood, | | |  | silky dogwood | | |  | | | | 
Table 10.--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 _____________________________________________________________________________________________________________ | | | | 7076A: | | | |  Otter-------------------|American |Cockspur hawthorn, |Arborvitae, |Green ash, red  | cranberrybush, | hazel alder, | blackgum, common | maple, river birch, | black chokeberry, | nannyberry, | hackberry, green | swamp white oak,  | buttonbush, common | roughleaf dogwood | hawthorn, northern | sweetgum  | elderberry, common | | whitecedar, |  | ninebark, common | | shingle oak |  | winterberry, gray | | |  | dogwood, highbush | | |  | blueberry, northern| | |  | spicebush, redosier| | |  | dogwood, silky | | |  | dogwood | | |  | | | | 7083A: | | | |  Wabash------------------|American |Cockspur hawthorn, |Arborvitae, |Green ash, red  | cranberrybush, | hazel alder, | blackgum, common | maple, river birch, | black chokeberry, | nannyberry, | hackberry, green | swamp white oak,  | buttonbush, common | roughleaf dogwood | hawthorn, northern | sweetgum  | elderberry, common | | whitecedar, |  | ninebark, common | | shingle oak |  | winterberry, gray | | |  | dogwood, highbush | | |  | blueberry, northern| | |  | spicebush, redosier| | |  | dogwood, silky | | |  | dogwood | | |  | | | | 7107A: | | | |  Sawmill-----------------|American |Cockspur hawthorn, |Arborvitae, |Green ash, red  | cranberrybush, | hazel alder, | blackgum, common | maple, river birch, | black chokeberry, | nannyberry, | hackberry, green | swamp white oak,  | buttonbush, common | roughleaf dogwood | hawthorn, northern | sweetgum  | elderberry, common | | whitecedar, |  | ninebark, common | | shingle oak |  | winterberry, gray | | |  | dogwood, highbush | | |  | blueberry, northern| | |  | spicebush, redosier| | |  | dogwood, silky | | |  | dogwood | | |  | | | | 
Table 10.--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 _____________________________________________________________________________________________________________ | | | | 7239A: | | | |  Dorchester--------------|Common winterberry, |Blackhaw, common |Austrian pine, |Carolina poplar,  | gray dogwood, | pawpaw, common | arborvitae, bur | eastern cottonwood  | redosier dogwood, | serviceberry, downy| oak, common |  | silky dogwood | arrowwood, | hackberry, eastern |  | | roughleaf dogwood, | redcedar, green |  | | southern arrowwood | ash, green |  | | | hawthorn, |  | | | nannyberry |  | | | | 7304A: | | | |  Landes------------------|American hazelnut, |American plum, |Douglas fir, |Norway spruce,  | black chokeberry, | American | arborvitae, black | common hackberry,  | common winterberry,| witchhazel, Arnold | walnut, blackgum, | pin oak, red pine,  | coralberry, gray | hawthorn, blackhaw,| blue spruce, bur | tuliptree  | dogwood, mapleleaf | common chokecherry,| oak, eastern |  | viburnum | common | redcedar, green |  | | serviceberry, | ash, pecan |  | | prairie crabapple | |  | | | | 7415A: | | | |  Orion-------------------|American |Blackhaw, cockspur |Austrian pine, |Norway spruce,  | cranberrybush, | hawthorn, common | Douglas fir, | blackgum, common  | Canada yew, black | pawpaw, common | arborvitae, blue | hackberry, green  | chokeberry, common | serviceberry, | spruce, common | ash, red maple,  | elderberry, common | prairie crabapple, | persimmon, eastern | swamp white oak,  | juniper, common | roughleaf dogwood, | redcedar, green | sweetgum  | ninebark, common | rusty blackhaw, | hawthorn, |  | winterberry, | southern arrowwood,| nannyberry, pecan, |  | northern spicebush,| witchhazel | shingle oak |  | redosier dogwood, | | |  | silky dogwood | | |  | | | | 7428A: | | | |  Coffeen-----------------|American |Blackhaw, cockspur |Austrian pine, |Norway spruce,  | cranberrybush, | hawthorn, common | Douglas fir, | blackgum, common  | Canada yew, black | pawpaw, common | arborvitae, blue | hackberry, green  | chokeberry, common | serviceberry, | spruce, common | ash, red maple,  | elderberry, common | prairie crabapple, | persimmon, eastern | swamp white oak,  | juniper, common | roughleaf dogwood, | redcedar, green | sweetgum  | ninebark, common | rusty blackhaw, | hawthorn, |  | winterberry, | southern arrowwood,| nannyberry, pecan, |  | northern spicebush,| witchhazel | shingle oak |  | redosier dogwood, | | |  | silky dogwood | | |  | | | | 
Table 10.--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 ____________________________________________________________________________________________________________ | | | | 7451A: | | | |  Lawson------------------|American |Blackhaw, cockspur |Austrian pine, |Norway spruce,  | cranberrybush, | hawthorn, common | Douglas fir, | blackgum, common  | Canada yew, black | pawpaw, common | arborvitae, blue | hackberry, green  | chokeberry, common | serviceberry, | spruce, common | ash, red maple,  | elderberry, common | prairie crabapple, | persimmon, eastern | swamp white oak,  | juniper, common | roughleaf dogwood, | redcedar, green | sweetgum  | ninebark, common | rusty blackhaw, | hawthorn, |  | winterberry, | southern arrowwood,| nannyberry, pecan, |  | northern spicebush,| witchhazel | shingle oak |  | redosier dogwood, | | |  | silky dogwood | | |  | | | | 7654A: | | | |  Moline------------------|American |Cockspur hawthorn, |Arborvitae, |Green ash, red  | cranberrybush, | hazel alder, | blackgum, common | maple, river birch | black chokeberry, | nannyberry, | hackberry, green | swamp white oak,  | buttonbush, common | roughleaf dogwood | hawthorn, northern | sweetgum  | elderberry, common | | whitecedar, |  | ninebark, common | | shingle oak |  | winterberry, gray | | |  | dogwood, highbush | | |  | blueberry, northern| | |  | spicebush, redosier| | |  | dogwood, silky | | |  | dogwood | | |  | | | | 8107+: | | | |  Sawmill-----------------|American |Cockspur hawthorn, |Arborvitae, |Green ash, red  | cranberrybush, | hazel alder, | blackgum, common | maple, river birch | black chokeberry, | nannyberry, | hackberry, green | swamp white oak,  | buttonbush, common | roughleaf dogwood | hawthorn, northern | sweetgum  | elderberry, common | | whitecedar, |  | ninebark, common | | shingle oak |  | winterberry, gray | | |  | dogwood, highbush | | |  | blueberry, northern| | |  | spicebush, redosier| | |  | dogwood, silky | | |  | dogwood | | |  | | | | 
Table 10.--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 _____________________________________________________________________________________________________________ | | | | 8302A: | | | |  Ambraw------------------|American |Cockspur hawthorn, |Arborvitae, |Green ash, red  | cranberrybush, | hazel alder, | blackgum, common | maple, river birch, | black chokeberry, | nannyberry, | hackberry, green | swamp white oak,  | buttonbush, common | roughleaf dogwood | hawthorn, northern | sweetgum  | elderberry, common | | whitecedar, |  | ninebark, common | | shingle oak |  | winterberry, gray | | |  | dogwood, highbush | | |  | blueberry, northern| | |  | spicebush, redosier| | |  | dogwood, silky | | |  | dogwood | | |  | | | | 8400A: | | | |  Calco-------------------|Common winterberry, |Common pawpaw, |Arborvitae, bur oak,|Carolina poplar,  | gray dogwood, | nannyberry, | common hackberry, | eastern cottonwood, | redosier dogwood | roughleaf dogwood, | eastern redcedar, | green ash  | | silky dogwood | green hawthorn |  | | | | 8404A: | | | |  Titus-------------------|Black chokeberry, |American plum, |Common hackberry, |Norway spruce,  | coralberry, gray | blackhaw, | eastern redcedar, | baldcypress,  | dogwood, mapleleaf | nannyberry, prairie| northern | eastern white pine, | viburnum | crabapple, | whitecedar, | green ash, northern | | roughleaf dogwood | shadbush | red oak, tuliptree  | | | | _____________________________________________________________________________________________________________
220 Soil Survey of

Table 11a.--Recreation

(The information in this table indicates the dominant soil condition but does not eliminate the

 need for onsite investigation. The numbers in the value columns range from 0.01 to 1.00. The

 larger the value, the greater the limitation. See text for further explanation of ratings in

 this table)

___________________________________________________________________________________________________

 | | |

 Map symbol | 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 | ___________________________________________________________________________________________________

 | | | | | |

8D2, 8D3: | | | | | |

 Hickory-------------|Somewhat limited | |Somewhat limited | |Very limited |

 | Slope |0.96 | Slope |0.96 | Slope |1.00

 | | | | | |

8F, F3: | | | | | |

 Hickory-------------|Very limited | |Very limited | |Very limited |

 | Slope |1.00 | Slope |1.00 | Slope |1.00

 | | | | | |

19C3: | | | | | |

 Sylvan--------------|Not limited | |Not limited | |Very limited |

 | | | | | Slope |1.00

 | | | | | |

19D, 19D3: | | | | | |

 Sylvan--------------|Somewhat limited | |Somewhat limited | |Very limited |

 | Slope |0.96 | Slope |0.96 | Slope |1.00

 | | | | | |

19F, 19F3: | | | | | |

 Sylvan--------------|Very limited | |Very limited | |Very limited |

 | Slope |1.00 | Slope |1.00 | Slope |1.00

 | | | | | |

45A: | | | | | |

 Denny---------------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Ponding |1.00 | Depth to |1.00

 | saturated zone | | Depth to |1.00 | saturated zone |

 | Ponding |1.00 | saturated zone | | Ponding |1.00

 | Restricted |0.96 | Restricted |0.96 | Restricted |0.96

 | permeability | | permeability | | permeability |

 | | | | | |

51A: | | | | | |

 Muscatune-----------|Somewhat limited | |Somewhat limited | |Somewhat limited |

 | Depth to |0.98 | Depth to |0.75 | Depth to |0.98

 | saturated zone | | saturated zone | | saturated zone |

 | | | | | |

61A: | | | | | |

 Atterberry----------|Somewhat limited | |Somewhat limited | |Somewhat limited |

 | | | | | |

68A: | | | | | |

 Sable---------------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Ponding |1.00 | Depth to |1.00

 | saturated zone | | Depth to |1.00 | saturated zone |

 | Ponding |1.00 | saturated zone | | Ponding |1.00

 | | | | | |

86B: | | | | | |

 Osco----------------|Not limited | |Not limited | |Somewhat limited |

 | | | | | Slope |0.28

 | | | | | |

86C2: | | | | | |

 Osco----------------|Not limited | |Not limited | |Very limited |

 | | | | | Slope |1.00

 | | | | | |

87A: | | | | | |

 Dickinson-----------|Not limited | |Not limited | |Not limited |

 | | | | | |

87C2: | | | | | |

 Dickinson-----------|Not limited | |Not limited | |Very limited |

 | | | | | Slope |1.00

 | | | | | |
Rock Island County, Illinois 221

Table 11a.--Recreation--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 | ___________________________________________________________________________________________________

 | | | | | |

88A: | | | | | |

 Sparta--------------|Somewhat limited | |Somewhat limited | |Somewhat limited |

 | Too sandy |0.95 | Too sandy |0.95 | Too sandy |0.95

 | | | | | |

172A: | | | | | |

 Hoopeston-----------|Somewhat limited | |Somewhat limited | |Somewhat limited |

 | Depth to |0.81 | Depth to |0.48 | Depth to |0.81

 | saturated zone | | saturated zone | | saturated zone |

 | | | | | |

212B: | | | | | |

 Thebes--------------|Not limited | |Not limited | |Somewhat limited |

 | | | | | Slope |0.28

 | | | | | |

250D: | | | | | |

 Velma---------------|Somewhat limited | |Somewhat limited | |Very limited |

 | Slope |0.96 | Slope |0.96 | Slope |1.00

 | | | | | |

261A: | | | | | |

 Niota---------------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Ponding |1.00 | Depth to |1.00

 | saturated zone | | Depth to |1.00 | saturated zone |

 | Ponding |1.00 | saturated zone | | Ponding |1.00

 | Restricted |1.00 | Restricted |1.00 | Restricted |1.00

 | permeability | | permeability | | permeability |

 | | | | | |

274B, 274B2: | | | | | |

 Seaton--------------|Not limited | |Not limited | |Somewhat limited |

 | | | | | Slope |0.28

 | | | | | |

274C2: | | | | | |

 Seaton--------------|Not limited | |Not limited | |Very limited |

 | | | | | Slope |1.00

 | | | | | |

274D2: | | | | | |

 Seaton--------------|Somewhat limited | |Somewhat limited | |Very limited |

 | Slope |0.96 | Slope |0.96 | Slope |1.00

 | | | | | |

275A: | | | | | |

 Joy-----------------|Somewhat limited | |Somewhat limited | |Somewhat limited |

 | Depth to |0.98 | Depth to |0.75 | Depth to |0.98

 | saturated zone | | saturated zone | | saturated zone |

 | | | | | |

278A: | | | | | |

 Stronghurst---------|Very limited | |Somewhat limited | |Very limited |

 | Depth to |1.00 | Depth to |0.94 | Depth to |1.00

 | saturated zone | | saturated zone | | saturated zone |

 | | | | | |

279A: | | | | | |

 Rozetta-------------|Not limited | |Not limited | |Not limited |

 | | | | | |

279B: | | | | | |

 Rozetta-------------|Not limited | |Not limited | |Somewhat limited |

 | | | | | Slope |0.28

 | | | | | |

280B, 280B2: | | | | | |

 Fayette-------------|Not limited | |Not limited | |Somewhat limited |

 | | | | | Slope |0.28

 | | | | | |

280C2, 280C3: | | | | | |

 Fayette-------------|Not limited | |Not limited | |Very limited |

 | | | | | Slope |1.00

 | | | | | |
222 Soil Survey of

Table 11a.--Recreation--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 | ___________________________________________________________________________________________________

 | | | | | |

317A: | | | | | |

 Millsdale-----------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Ponding |1.00 | Depth to |1.00

 | saturated zone | | Depth to |1.00 | saturated zone |

 | Ponding |1.00 | saturated zone | | Ponding |1.00

 | Restricted |0.43 | Restricted |0.43 | Restricted |0.43

 | permeability | | permeability | | permeability |

 | | | | | |

430A: | | | | | |

 Raddle--------------|Not limited | |Not limited | |Not limited |

 | | | | | |

430B: | | | | | |

 Raddle--------------|Not limited | |Not limited | |Somewhat limited |

 | | | | | Slope |0.28

 | | | | | |

525A: | | | | | |

 Joslin--------------|Not limited | |Not limited | |Not limited |

 | | | | | |

567C2: | | | | | |

 Elkhart-------------|Not limited | |Not limited | |Very limited |

 | | | | | Slope |1.00

 | | | | | |

567D2: | | | | | |

 Elkhart-------------|Somewhat limited | |Somewhat limited | |Very limited |

 | Slope |0.96 | Slope |0.96 | Slope |1.00

 | | | | | |

570B: | | | | | |

 Martinsville--------|Not limited | |Not limited | |Somewhat limited |

 | | | | | Slope |0.28

 | | | | | |

570C3: | | | | | |

 Martinsville--------|Not limited | |Not limited | |Very limited |

 | | | | | Slope |1.00

 | | | | | |

570D3: | | | | | |

 Martinsville--------|Somewhat limited | |Somewhat limited | |Very limited |

 | Slope |0.96 | Slope |0.96 | Slope |1.00

 | | | | | |

647A: | | | | | |

 Lawler--------------|Somewhat limited | |Somewhat limited | |Somewhat limited |

 | Depth to |0.98 | Depth to |0.75 | Depth to |0.98

 | saturated zone | | saturated zone | | saturated zone |

 | | | | | |

671A: | | | | | |

 Biggsville----------|Not limited | |Not limited | |Not limited |

 | | | | | |

671B: | | | | | |

 Biggsville----------|Not limited | |Not limited | |Somewhat limited |

 | | | | | Slope |0.28

 | | | | | |

675A: | | | | | |

 Greenbush-----------|Not limited | |Not limited | |Not limited |

 | | | | | |

675B: | | | | | |

 Greenbush-----------|Not limited | |Not limited | |Somewhat limited |

 | | | | | Slope |0.28

 | | | | | |

689B: | | | | | |

 Coloma--------------|Very limited | |Very limited | |Very limited |

 | Too sandy |1.00 | Too sandy |1.00 | Too sandy |1.00

 | | | | | Slope |0.50

 | | | | | |
Rock Island County, Illinois 223

Table 11a.--Recreation--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 | ___________________________________________________________________________________________________

 | | | | | |

689D: | | | | | |

 Coloma--------------|Very limited | |Very limited | |Very limited |

 | Too sandy |1.00 | Too sandy |1.00 | Slope |1.00

 | Slope |0.37 | Slope |0.37 | Too sandy |1.00

 | | | | | |

705A: | | | | | |

 Buckhart------------|Not limited | |Not limited | |Not limited |

 | | | | | |

727A: | | | | | |

 Waukee--------------|Not limited | |Not limited | |Not limited |

 | | | | | |

741F: | | | | | |

 Oakville------------|Very limited | |Very limited | |Very limited |

 | Slope |1.00 | Too sandy |1.00 | Slope |1.00

 | Too sandy |1.00 | Slope |1.00 | Too sandy |1.00

 | | | | | |

763A: | | | | | |

 Joslin--------------|Not limited | |Not limited | |Not limited |

 | | | | | |

763B: | | | | | |

 Joslin--------------|Not limited | |Not limited | |Somewhat limited |

 | | | | | Slope |0.28

 | | | | | |

764A: | | | | | |

 Coyne---------------|Not limited | |Not limited | |Not limited |

 | | | | | |

764C: | | | | | |

 Coyne---------------|Not limited | |Not limited | |Very limited |

 | | | | | Slope |1.00

 | | | | | |

774A: | | | | | |

 Saude---------------|Not limited | |Not limited | |Not limited |

 | | | | | |

800C: | | | | | |

 Psamments-----------|Very limited | |Very limited | |Very limited |

 | Too sandy |1.00 | Too sandy |1.00 | Too sandy |1.00

 | Slope |0.09 | Slope |0.09 | Slope |1.00

 | | | | | |

802B: | | | | | |

 Orthents------------|Somewhat limited | |Somewhat limited | |Somewhat limited |

 | Restricted |0.21 | Restricted |0.21 | Slope |0.50

 | permeability | | permeability | | Restricted |0.21

 | | | | | permeability |

 | | | | | |

864: | | | | | |

 Pits, quarries------|Not rated | |Not rated | |Not rated |

 | | | | | |

865: | | | | | |

 Pits, gravel--------|Not rated | |Not rated | |Not rated |

 | | | | | |

898F3, 898G: | | | | | |

 Hickory-------------|Very limited | |Very limited | |Very limited |

 | Slope |1.00 | Slope |1.00 | Slope |1.00

 | | | | | |

 Sylvan--------------|Very limited | |Very limited | |Very limited |

 | Slope |1.00 | Slope |1.00 | Slope |1.00

 | | | | | |
224 Soil Survey of

Table 11a.--Recreation--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 | ___________________________________________________________________________________________________

 | | | | | |

913D2: | | | | | |

 Marseilles----------|Somewhat limited | |Somewhat limited | |Very limited |

 | Restricted |0.96 | Restricted |0.96 | Slope |1.00

 | permeability | | permeability | | Restricted |0.96

 | Slope |0.96 | Slope |0.96 | permeability |

 | | | | | Depth to bedrock |0.42

 | | | | | |

 Hickory-------------|Somewhat limited | |Somewhat limited | |Very limited |

 | Slope |0.96 | Slope |0.96 | Slope |1.00

 | | | | | |

913F, 913G: | | | | | |

 Marseilles----------|Very limited | |Very limited | |Very limited |

 | Slope |1.00 | Slope |1.00 | Slope |1.00

 | Restricted |0.96 | Restricted |0.96 | Restricted |0.96

 | permeability | | permeability | | permeability |

 | | | | | Depth to bedrock |0.42

 | | | | | |

 Hickory-------------|Very limited | |Very limited | |Very limited |

 | Slope |1.00 | Slope |1.00 | Slope |1.00

 | | | | | |

917C2: | | | | | |

 Oakville------------|Very limited | |Very limited | |Very limited |

 | Too sandy |1.00 | Too sandy |1.00 | Too sandy |1.00

 | | | | | Slope |1.00

 | | | | | |

 Tell----------------|Not limited | |Not limited | |Very limited |

 | | | | | Slope |1.00

 | | | | | |

917D2: | | | | | |

 Oakville------------|Very limited | |Very limited | |Very limited |

 | Too sandy |1.00 | Too sandy |1.00 | Slope |1.00

 | Slope |0.96 | Slope |0.96 | Too sandy |1.00

 | | | | | |

 Tell----------------|Somewhat limited | |Somewhat limited | |Very limited |

 | Slope |0.96 | Slope |0.96 | Slope |1.00

 | | | | | |

943D2: | | | | | |

 Seaton--------------|Somewhat limited | |Somewhat limited | |Very limited |

 | Slope |0.96 | Slope |0.96 | Slope |1.00

 | | | | | |

 Timula--------------|Somewhat limited | |Somewhat limited | |Very limited |

 | Slope |0.96 | Slope |0.96 | Slope |1.00

 | | | | | |

943F2: | | | | | |

 Seaton--------------|Very limited | |Very limited | |Very limited |

 | Slope |1.00 | Slope |1.00 | Slope |1.00

 | | | | | |

 Timula--------------|Very limited | |Very limited | |Very limited |

 | Slope |1.00 | Slope |1.00 | Slope |1.00

 | | | | | |

944D2: | | | | | |

 Velma---------------|Somewhat limited | |Somewhat limited | |Very limited |

 | Slope |0.96 | Slope |0.96 | Slope |1.00

 | | | | | |

 Coatsburg-----------|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 | Slope |1.00

 | permeability | | permeability | | Restricted |1.00

 | Slope |0.96 | Slope |0.96 | permeability |

 | | | | | |
Rock Island County, Illinois 225

Table 11a.--Recreation--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 | ___________________________________________________________________________________________________

 | | | | | |

946D3: | | | | | |

 Hickory-------------|Somewhat limited | |Somewhat limited | |Very limited |

 | Slope |0.96 | Slope |0.96 | Slope |1.00

 | | | | | |

 Atlas---------------|Very limited | |Very limited | |Very limited |

 | Restricted |1.00 | Restricted |1.00 | Slope |1.00

 | permeability | | permeability | | Restricted |1.00

 | Depth to |1.00 | Slope |0.96 | permeability |

 | saturated zone | | Depth to |0.94 | Depth to |1.00

 | Slope |0.96 | saturated zone | | saturated zone |

 | | | | | |

946F3: | | | | | |

 Hickory-------------|Very limited | |Very limited | |Very limited |

 | Slope |1.00 | Slope |1.00 | Slope |1.00

 | | | | | |

 Atlas---------------|Very limited | |Very limited | |Very limited |

 | Slope |1.00 | Slope |1.00 | Slope |1.00

 | Restricted |1.00 | Restricted |1.00 | Restricted |1.00

 | permeability | | permeability | | permeability |

 | Depth to |1.00 | Depth to |0.94 | Depth to |1.00

 | saturated zone | | saturated zone | | saturated zone |

 | | | | | |

959G: | | | | | |

 Strawn--------------|Very limited | |Very limited | |Very limited |

 | Slope |1.00 | Slope |1.00 | Slope |1.00

 | | | | | |

 Chute---------------|Very limited | |Very limited | |Very limited |

 | Slope |1.00 | Too sandy |1.00 | Slope |1.00

 | Too sandy |1.00 | Slope |1.00 | Too sandy |1.00

 | | | | | |

960D2, 960D3: | | | | | |

 Hickory-------------|Somewhat limited | |Somewhat limited | |Very limited |

 | Slope |0.96 | Slope |0.96 | Slope |1.00

 | | | | | |

 Sylvan--------------|Somewhat limited | |Somewhat limited | |Very limited |

 | Slope |0.96 | Slope |0.96 | Slope |1.00

 | | | | | |

 Fayette-------------|Somewhat limited | |Somewhat limited | |Very limited |

 | Slope |0.96 | Slope |0.96 | Slope |1.00

 | | | | | |

960F: | | | | | |

 Hickory-------------|Very limited | |Very limited | |Very limited |

 | Slope |1.00 | Slope |1.00 | Slope |1.00

 | | | | | |

 Sylvan--------------|Very limited | |Very limited | |Very limited |

 | Slope |1.00 | Slope |1.00 | Slope |1.00

 | | | | | |

 Fayette-------------|Very limited | |Very limited | |Very limited |

 | Slope |1.00 | Slope |1.00 | Slope |1.00

 | | | | | |

961A: | | | | | |

 Burkhardt-----------|Not limited | |Not limited | |Not limited |

 | | | | | |

 Saude---------------|Not limited | |Not limited | |Not limited |

 | | | | | |

962F: | | | | | |

 Sylvan--------------|Very limited | |Very limited | |Very limited |

 | Slope |1.00 | Slope |1.00 | Slope |1.00

 | | | | | |

 Bold----------------|Very limited | |Very limited | |Very limited |

 | Slope |1.00 | Slope |1.00 | Slope |1.00

 | | | | | |
226 Soil Survey of

Table 11a.--Recreation--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 | ___________________________________________________________________________________________________

 | | | | | |

1076A: | | | | | |

 Otter---------------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Ponding |1.00 | Depth to |1.00

 | saturated zone | | Depth to |1.00 | saturated zone |

 | Flooding |1.00 | saturated zone | | Flooding |1.00

 | Ponding |1.00 | Flooding |0.40 | Ponding |1.00

 | | | | | |

1082A: | | | | | |

 Millington----------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Ponding |1.00 | Depth to |1.00

 | saturated zone | | Depth to |1.00 | saturated zone |

 | Flooding |1.00 | saturated zone | | Flooding |1.00

 | Ponding |1.00 | Flooding |0.40 | Ponding |1.00

 | | | | | |

1107A: | | | | | |

 Sawmill-------------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Ponding |1.00 | Depth to |1.00

 | saturated zone | | Depth to |1.00 | saturated zone |

 | Flooding |1.00 | saturated zone | | Flooding |1.00

 | Ponding |1.00 | Flooding |0.40 | Ponding |1.00

 | | | | | |

1334A: | | | | | |

 Birds---------------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Ponding |1.00 | Depth to |1.00

 | saturated zone | | Depth to |1.00 | saturated zone |

 | Flooding |1.00 | saturated zone | | Flooding |1.00

 | Ponding |1.00 | Flooding |0.40 | Ponding |1.00

 | | | | | |

1400A: | | | | | |

 Calco---------------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Ponding |1.00 | Depth to |1.00

 | saturated zone | | Depth to |1.00 | saturated zone |

 | Flooding |1.00 | saturated zone | | Flooding |1.00

 | Ponding |1.00 | Flooding |0.40 | Ponding |1.00

 | | | | | |

1654A: | | | | | |

 Moline--------------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Ponding |1.00 | Depth to |1.00

 | saturated zone | | Depth to |1.00 | saturated zone |

 | Flooding |1.00 | saturated zone | | Flooding |1.00

 | Ponding |1.00 | Too clayey |1.00 | Ponding |1.00

 | Too clayey |1.00 | Restricted |0.96 | Too clayey |1.00

 | Restricted |0.96 | permeability | | Restricted |0.96

 | permeability | | Flooding |0.40 | permeability |

 | | | | | |

3074A: | | | | | |

 Radford-------------|Very limited | |Somewhat limited | |Very limited |

 | Flooding |1.00 | Depth to |0.75 | Flooding |1.00

 | Depth to |0.98 | saturated zone | | Depth to |0.98

 | saturated zone | | Flooding |0.40 | saturated zone |

 | | | | | |

3076A: | | | | | |

 Otter---------------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Ponding |1.00 | Depth to |1.00

 | saturated zone | | Depth to |1.00 | saturated zone |

 | Flooding |1.00 | saturated zone | | Flooding |1.00

 | Ponding |1.00 | Flooding |0.40 | Ponding |1.00

 | | | | | |
Rock Island County, Illinois 227

Table 11a.--Recreation--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 | ___________________________________________________________________________________________________

 | | | | | |

3082A: | | | | | |

 Millington----------|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

 | | | | | |

3083A: | | | | | |

 Wabash--------------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Ponding |1.00 | Depth to |1.00

 | saturated zone | | Depth to |1.00 | saturated zone |

 | Flooding |1.00 | saturated zone | | Flooding |1.00

 | Ponding |1.00 | Restricted |1.00 | Ponding |1.00

 | Restricted |1.00 | permeability | | Restricted |1.00

 | permeability | | Too clayey |1.00 | permeability |

 | Too clayey |1.00 | Flooding |0.40 | Too clayey |1.00

 | | | | | |

3107A: | | | | | |

 Sawmill-------------|Very limited | |Very limited | |Very limited |

 | Flooding |1.00 | Depth to |1.00 | Flooding |1.00

 | Depth to |1.00 | saturated zone | | Depth to |1.00

 | saturated zone | | Flooding |0.40 | saturated zone |

 | | | | | |

3239A: | | | | | |

 Dorchester----------|Very limited | |Somewhat limited | |Very limited |

 | Flooding |1.00 | Flooding |0.40 | Flooding |1.00

 | | | | | |

3400A: | | | | | |

 Calco---------------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Ponding |1.00 | Depth to |1.00

 | saturated zone | | Depth to |1.00 | saturated zone |

 | Flooding |1.00 | saturated zone | | Flooding |1.00

 | Ponding |1.00 | Flooding |0.40 | Ponding |1.00

 | | | | | |

3415A: | | | | | |

 Orion---------------|Very limited | |Somewhat limited | |Very limited |

 | Flooding |1.00 | Depth to |0.75 | Flooding |1.00

 | Depth to |0.98 | saturated zone | | Depth to |0.98

 | saturated zone | | Flooding |0.40 | saturated zone |

 | | | | | |

3428A: | | | | | |

 Coffeen-------------|Very limited | |Somewhat limited | |Very limited |

 | Flooding |1.00 | Depth to |0.75 | Flooding |1.00

 | Depth to |0.98 | saturated zone | | Depth to |0.98

 | saturated zone | | Flooding |0.40 | saturated zone |

 | | | | | |

3451A: | | | | | |

 Lawson--------------|Very limited | |Somewhat limited | |Very limited |

 | Flooding |1.00 | Depth to |0.75 | Flooding |1.00

 | Depth to |0.98 | saturated zone | | Depth to |0.98

 | saturated zone | | Flooding |0.40 | saturated zone |

 | | | | | |

3646L: | | | | | |

 Fluvaquents---------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Ponding |1.00 | Depth to |1.00

 | saturated zone | | Depth to |1.00 | saturated zone |

 | Flooding |1.00 | saturated zone | | Flooding |1.00

 | Ponding |1.00 | Flooding |0.40 | Ponding |1.00

 | | | | | |
228 Soil Survey of

Table 11a.--Recreation--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 | ___________________________________________________________________________________________________

 | | | | | |

7076A: | | | | | |

 Otter---------------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Ponding |1.00 | Depth to |1.00

 | saturated zone | | Depth to |1.00 | saturated zone |

 | Flooding |1.00 | saturated zone | | Ponding |1.00

 | Ponding |1.00 | | | |

 | | | | | |

7083A: | | | | | |

 Wabash--------------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Ponding |1.00 | Depth to |1.00

 | saturated zone | | Depth to |1.00 | saturated zone |

 | Flooding |1.00 | saturated zone | | Ponding |1.00

 | Ponding |1.00 | Restricted |1.00 | Restricted |1.00

 | Restricted |1.00 | permeability | | permeability |

 | permeability | | Too clayey |1.00 | Too clayey |1.00

 | Too clayey |1.00 | | | |

 | | | | | |

7107A: | | | | | |

 Sawmill-------------|Very limited | |Very limited | |Very limited |

 | Flooding |1.00 | 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 | | | | |

 | | | | | |

7239A: | | | | | |

 Dorchester----------|Very limited | |Not limited | |Not limited |

 | Flooding |1.00 | | | |

 | | | | | |

7304A: | | | | | |

 Landes--------------|Very limited | |Not limited | |Not limited |

 | Flooding |1.00 | | | |

 | | | | | |

7415A: | | | | | |

 Orion---------------|Very limited | |Somewhat limited | |Somewhat limited |

 | Flooding |1.00 | Depth to |0.19 | Depth to |0.39

 | Depth to |0.39 | saturated zone | | saturated zone |

 | saturated zone | | | | |

 | | | | | |

7428A: | | | | | |

 Coffeen-------------|Very limited | |Somewhat limited | |Somewhat limited |

 | Flooding |1.00 | Depth to |0.75 | Depth to |0.98

 | Depth to |0.98 | saturated zone | | saturated zone |

 | saturated zone | | | | |

 | | | | | |

7451A: | | | | | |

 Lawson--------------|Very limited | |Somewhat limited | |Somewhat limited |

 | Flooding |1.00 | Depth to |0.75 | Depth to |0.98

 | Depth to |0.98 | saturated zone | | saturated zone |

 | saturated zone | | | | |

 | | | | | |

7654A: | | | | | |

 Moline--------------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Ponding |1.00 | Depth to |1.00

 | saturated zone | | Depth to |1.00 | saturated zone |

 | Flooding |1.00 | saturated zone | | Ponding |1.00

 | Ponding |1.00 | Too clayey |1.00 | Too clayey |1.00

 | Too clayey |1.00 | Restricted |0.96 | Restricted |0.96

 | Restricted |0.96 | permeability | | permeability |

 | permeability | | | | |

 | | | | | |
Rock Island County, Illinois 229

Table 11a.--Recreation--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 | ___________________________________________________________________________________________________

 | | | | | |

8107+: | | | | | |

 Sawmill-------------|Very limited | |Very limited | |Very limited |

 | Flooding |1.00 | Depth to |1.00 | Depth to |1.00

 | Depth to |1.00 | saturated zone | | saturated zone |

 | saturated zone | | | | Flooding |0.60

 | | | | | |

8302A: | | | | | |

 Ambraw--------------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Ponding |1.00 | Depth to |1.00

 | saturated zone | | Depth to |1.00 | saturated zone |

 | Flooding |1.00 | saturated zone | | Ponding |1.00

 | Ponding |1.00 | Restricted |0.21 | Flooding |0.60

 | Restricted |0.21 | permeability | | Restricted |0.21

 | permeability | | | | permeability |

 | | | | | |

8400A: | | | | | |

 Calco---------------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Ponding |1.00 | Depth to |1.00

 | saturated zone | | Depth to |1.00 | saturated zone |

 | Flooding |1.00 | saturated zone | | Ponding |1.00

 | Ponding |1.00 | | | Flooding |0.60

 | | | | | |

8404A: | | | | | |

 Titus---------------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Ponding |1.00 | Depth to |1.00

 | saturated zone | | Depth to |1.00 | saturated zone |

 | Flooding |1.00 | saturated zone | | Ponding |1.00

 | Ponding |1.00 | Restricted |0.96 | Restricted |0.96

 | Restricted |0.96 | permeability | | permeability |

 | permeability | | | | Flooding |0.60

 | | | | | | ___________________________________________________________________________________________________
230 Soil Survey of

Table 11b.--Recreation

(The information in this table indicates the dominant soil condition but does not eliminate the need

 for onsite investigation. The numbers in the value columns range from 0.01 to 1.00. The larger

 the value, the greater the limitation. See text for further explanation of ratings in this

 table)

________________________________________________________________________________________________________

 | | |

 Map symbol | 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 | ________________________________________________________________________________________________________

 | | | | | |

8D2, 8D3: | | | | | |

 Hickory------------------|Not limited | |Not limited | |Somewhat limited |

 | | | | | Slope |0.96

 | | | | | |

8F, 8F3: | | | | | |

 Hickory------------------|Very limited | |Somewhat limited | |Very limited |

 | Slope |1.00 | Slope |0.04 | Slope |1.00

 | | | | | |

19C3: | | | | | |

 Sylvan-------------------|Not limited | |Not limited | |Not limited |

 | | | | | |

19D, 19D3: | | | | | |

 Sylvan-------------------|Very limited | |Very limited | |Somewhat limited |

 | Water erosion |1.00 | Water erosion |1.00 | Slope |0.96

 | | | | | |

19F, 19F3: | | | | | |

 Sylvan-------------------|Very limited | |Very limited | |Very limited |

 | Water erosion |1.00 | Water erosion |1.00 | Slope |1.00

 | Slope |1.00 | Slope |0.04 | |

 | | | | | |

45A: | | | | | |

 Denny--------------------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00 | Ponding |1.00

 | saturated zone | | saturated zone | | Depth to |1.00

 | Ponding |1.00 | Ponding |1.00 | saturated zone |

 | | | | | |

51A: | | | | | |

 Muscatune----------------|Somewhat limited | |Somewhat limited | |Somewhat limited |

 | Depth to |0.44 | Depth to |0.44 | Depth to |0.75

 | saturated zone | | saturated zone | | saturated zone |

 | | | | | |

61A: | | | | | |

 Atterberry---------------|Somewhat limited | |Somewhat limited | |Somewhat limited |

 | Depth to |0.86 | Depth to |0.86 | Depth to |0.94

 | saturated zone | | saturated zone | | saturated zone |

 | | | | | |

68A: | | | | | |

 Sable--------------------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00 | Ponding |1.00

 | saturated zone | | saturated zone | | Depth to |1.00

 | Ponding |1.00 | Ponding |1.00 | saturated zone |

 | | | | | |

86B, 86C2: | | | | | |

 Osco---------------------|Not limited | |Not limited | |Not limited |

 | | | | | |

87A, 87C2: | | | | | |

 Dickinson----------------|Not limited | |Not limited | |Not limited |

 | | | | | |

88A: | | | | | |

 Sparta-------------------|Somewhat limited | |Somewhat limited | |Somewhat limited |

 | Too sandy |0.95 | Too sandy |0.95 | Droughty |0.08

 | | | | | |

172A: | | | | | |

 Hoopeston----------------|Somewhat limited | |Somewhat limited | |Somewhat limited |

 | Depth to |0.11 | Depth to |0.11 | Depth to |0.48

 | saturated zone | | saturated zone | | saturated zone |

 | | | | | |
Rock Island County, Illinois 231

Table 11b.--Recreation--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 | ________________________________________________________________________________________________________

 | | | | | |

212B: | | | | | |

 Thebes-------------------|Not limited | |Not limited | |Not limited |

 | | | | | |

250D: | | | | | |

 Velma--------------------|Not limited | |Not limited | |Somewhat limited |

 | | | | | Slope |0.96

 | | | | | |

261A: | | | | | |

 Niota--------------------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00 | Ponding |1.00

 | saturated zone | | saturated zone | | Depth to |1.00

 | Ponding |1.00 | Ponding |1.00 | saturated zone |

 | | | | | |

274B, 274B2, 274C2: | | | | | |

 Seaton-------------------|Not limited | |Not limited | |Not limited |

 | | | | | |

274D2: | | | | | |

 Seaton-------------------|Very limited | |Very limited | |Somewhat limited |

 | Water erosion |1.00 | Water erosion |1.00 | Slope |0.96

 | | | | | |

275A: | | | | | |

 Joy----------------------|Somewhat limited | |Somewhat limited | |Somewhat limited |

 | Depth to |0.44 | Depth to |0.44 | Depth to |0.75

 | saturated zone | | saturated zone | | saturated zone |

 | | | | | |

278A: | | | | | |

 Stronghurst--------------|Somewhat limited | |Somewhat limited | |Somewhat limited |

 | Depth to |0.86 | Depth to |0.86 | Depth to |0.94

 | saturated zone | | saturated zone | | saturated zone |

 | | | | | |

279A, 279B: | | | | | |

 Rozetta------------------|Not limited | |Not limited | |Not limited |

 | | | | | |

280B, 280B2, 280C2, | | | | | |

 280C3: | | | | | |

 Fayette-----------------|Not limited | |Not limited | |Not limited |

 | | | | | |

317A: | | | | | |

 Millsdale----------------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00 | Ponding |1.00

 | saturated zone | | saturated zone | | Depth to |1.00

 | Ponding |1.00 | Ponding |1.00 | saturated zone |

 | | | | | Depth to bedrock |0.42

 | | | | | |

430A, 430B: | | | | | |

 Raddle-------------------|Not limited | |Not limited | |Not limited |

 | | | | | |

525A: | | | | | |

 Joslin-------------------|Not limited | |Not limited | |Not limited |

 | | | | | |

567C2: | | | | | |

 Elkhart------------------|Not limited | |Not limited | |Not limited |

 | | | | | |

567D2: | | | | | |

 Elkhart------------------|Not limited | |Not limited | |Somewhat limited |

 | | | | | Slope |0.96

 | | | | | |

570B, 570C3: | | | | | |

 Martinsville-------------|Not limited | |Not limited | |Not limited |

 | | | | | |
232 Soil Survey of

Table 11b.--Recreation--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 | ________________________________________________________________________________________________________

 | | | | | |

570D3: | | | | | |

 Martinsville-------------|Not limited | |Not limited | |Somewhat limited |

 | | | | | Slope |0.96

 | | | | | |

647A: | | | | | |

 Lawler-------------------|Somewhat limited | |Somewhat limited | |Somewhat limited |

 | Depth to |0.44 | Depth to |0.44 | Depth to |0.75

 | saturated zone | | saturated zone | | saturated zone |

 | | | | | |

671A, 671B: | | | | | |

 Biggsville---------------|Not limited | |Not limited | |Not limited |

 | | | | | |

675A, 675B: | | | | | |

 Greenbush----------------|Not limited | |Not limited | |Not limited |

 | | | | | |

689B: | | | | | |

 Coloma-------------------|Very limited | |Very limited | |Somewhat limited |

 | Too sandy |1.00 | Too sandy |1.00 | Too sandy |0.50

 | | | | | Droughty |0.49

 | | | | | |

689D: | | | | | |

 Coloma-------------------|Very limited | |Very limited | |Somewhat limited |

 | Too sandy |1.00 | Too sandy |1.00 | Droughty |0.58

 | | | | | Too sandy |0.50

 | | | | | Slope |0.37

 | | | | | |

705A: | | | | | |

 Buckhart-----------------|Not limited | |Not limited | |Not limited |

 | | | | | |

727A: | | | | | |

 Waukee-------------------|Not limited | |Not limited | |Not limited |

 | | | | | |

741F: | | | | | |

 Oakville-----------------|Very limited | |Very limited | |Very limited |

 | Too sandy |1.00 | Too sandy |1.00 | Slope |1.00

 | Slope |0.88 | | | Droughty |0.62

 | | | | | |

763A, 763B: | | | | | |

 Joslin-------------------|Not limited | |Not limited | |Not limited |

 | | | | | |

764A, 764C: | | | | | |

 Coyne--------------------|Not limited | |Not limited | |Not limited |

 | | | | | |

774A: | | | | | |

 Saude--------------------|Not limited | |Not limited | |Not limited |

 | | | | | |

800C: | | | | | |

 Psamments----------------|Very limited | |Very limited | |Somewhat limited |

 | Too sandy |1.00 | Too sandy |1.00 | Droughty |0.69

 | | | | | Too sandy |0.50

 | | | | | Slope |0.09

 | | | | | |

802B: | | | | | |

 Orthents-----------------|Not limited | |Not limited | |Not limited |

 | | | | | |

864: | | | | | |

 Pits, quarries-----------|Not rated | |Not rated | |Not rated |

 | | | | | |

865: | | | | | |

 Pits, gravel-------------|Not rated | |Not rated | |Not rated |

 | | | | | |
Rock Island County, Illinois 233

Table 11b.--Recreation--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 | ________________________________________________________________________________________________________

 | | | | | |

898F3: | | | | | |

 Hickory------------------|Very limited | |Somewhat limited | |Very limited |

 | Slope |1.00 | Slope |0.01 | Slope |1.00

 | | | | | |

 Sylvan-------------------|Very limited | |Very limited | |Very limited |

 | Water erosion |1.00 | Water erosion |1.00 | Slope |1.00

 | Slope |1.00 | Slope |0.01 | |

 | | | | | |

898G: | | | | | |

 Hickory------------------|Very limited | |Very limited | |Very limited |

 | Slope |1.00 | Slope |1.00 | Slope |1.00

 | | | | | |

 Sylvan-------------------|Very limited | |Very limited | |Very limited |

 | Slope |1.00 | Water erosion |1.00 | Slope |1.00

 | Water erosion |1.00 | Slope |1.00 | |

 | | | | | |

913D2: | | | | | |

 Marseilles---------------|Not limited | |Not limited | |Somewhat limited |

 | | | | | Slope |0.96

 | | | | | Depth to bedrock |0.42

 | | | | | |

 Hickory------------------|Not limited | |Not limited | |Somewhat limited |

 | | | | | Slope |0.96

 | | | | | |

913F: | | | | | |

 Marseilles---------------|Very limited | |Somewhat limited | |Very limited |

 | Slope |1.00 | Slope |0.01 | Slope |1.00

 | | | | | Depth to bedrock |0.42

 | | | | | |

 Hickory------------------|Very limited | |Somewhat limited | |Very limited |

 | Slope |1.00 | Slope |0.01 | Slope |1.00

 | | | | | |

913G: | | | | | |

 Marseilles---------------|Very limited | |Very limited | |Very limited |

 | Slope |1.00 | Slope |1.00 | Slope |1.00

 | | | | | Depth to bedrock |0.42

 | | | | | |

 Hickory------------------|Very limited | |Very limited | |Very limited |

 | Slope |1.00 | Slope |1.00 | Slope |1.00

 | | | | | |

917C2: | | | | | |

 Oakville-----------------|Very limited | |Very limited | |Somewhat limited |

 | Too sandy |1.00 | Too sandy |1.00 | Droughty |0.34

 | | | | | |

 Tell---------------------|Not limited | |Not limited | |Not limited |

 | | | | | |

917D2: | | | | | |

 Oakville-----------------|Very limited | |Very limited | |Somewhat limited |

 | Too sandy |1.00 | Too sandy |1.00 | Slope |0.96

 | | | | | Droughty |0.40

 | | | | | |

 Tell---------------------|Very limited | |Very limited | |Somewhat limited |

 | Water erosion |1.00 | Water erosion |1.00 | Slope |0.96

 | | | | | |

943D2: | | | | | |

 Seaton-------------------|Very limited | |Very limited | |Somewhat limited |

 | Water erosion |1.00 | Water erosion |1.00 | Slope |0.96

 | | | | | |

 Timula-------------------|Very limited | |Very limited | |Somewhat limited |

 | Water erosion |1.00 | Water erosion |1.00 | Slope |0.96

 | | | | | |
234 Soil Survey of

Table 11b.--Recreation--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 | ________________________________________________________________________________________________________

 | | | | | |

943F2: | | | | | |

 Seaton-------------------|Very limited | |Very limited | |Very limited |

 | Water erosion |1.00 | Water erosion |1.00 | Slope |1.00

 | Slope |1.00 | Slope |0.04 | |

 | | | | | |

 Timula-------------------|Very limited | |Very limited | |Very limited |

 | Water erosion |1.00 | Water erosion |1.00 | Slope |1.00

 | Slope |1.00 | Slope |0.04 | |

 | | | | | |

944D2: | | | | | |

 Velma--------------------|Not limited | |Not limited | |Somewhat limited |

 | | | | | Slope |0.96

 | | | | | |

 Coatsburg----------------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00 | Depth to |1.00

 | saturated zone | | saturated zone | | saturated zone |

 | Water erosion |1.00 | Water erosion |1.00 | Slope |0.96

 | | | | | |

946D3: | | | | | |

 Hickory------------------|Not limited | |Not limited | |Somewhat limited |

 | | | | | Slope |0.96

 | | | | | |

 Atlas--------------------|Very limited | |Very limited | |Somewhat limited |

 | Water erosion |1.00 | Water erosion |1.00 | Slope |0.96

 | Depth to |0.86 | Depth to |0.86 | Depth to |0.94

 | saturated zone | | saturated zone | | saturated zone |

 | | | | | |

946F3: | | | | | |

 Hickory------------------|Very limited | |Somewhat limited | |Very limited |

 | Slope |1.00 | Slope |0.04 | Slope |1.00

 | | | | | |

 Atlas--------------------|Very limited | |Very limited | |Very limited |

 | Water erosion |1.00 | Water erosion |1.00 | Slope |1.00

 | Slope |1.00 | Depth to |0.86 | Depth to |0.94

 | Depth to |0.86 | saturated zone | | saturated zone |

 | saturated zone | | Slope |0.04 | |

 | | | | | |

959G: | | | | | |

 Strawn-------------------|Very limited | |Very limited | |Very limited |

 | Slope |1.00 | Slope |1.00 | Slope |1.00

 | | | | | |

 Chute--------------------|Very limited | |Very limited | |Very limited |

 | Too sandy |1.00 | Too sandy |1.00 | Slope |1.00

 | Slope |1.00 | Slope |1.00 | Droughty |0.29

 | | | | | |

960D2, 960D3: | | | | | |

 Hickory------------------|Not limited | |Not limited | |Somewhat limited |

 | | | | | Slope |0.96

 | | | | | |

 Sylvan-------------------|Very limited | |Very limited | |Somewhat limited |

 | Water erosion |1.00 | Water erosion |1.00 | Slope |0.96

 | | | | | |

 Fayette------------------|Very limited | |Very limited | |Somewhat limited |

 | Water erosion |1.00 | Water erosion |1.00 | Slope |0.96

 | | | | | |

960F: | | | | | |

 Hickory------------------|Very limited | |Somewhat limited | |Very limited |

 | Slope |1.00 | Slope |0.04 | Slope |1.00

 | | | | | |
Rock Island County, Illinois 235

Table 11b.--Recreation--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 | ________________________________________________________________________________________________________

 | | | | | |

960F: | | | | | |

 Sylvan-------------------|Very limited | |Very limited | |Very limited |

 | Water erosion |1.00 | Water erosion |1.00 | Slope |1.00

 | Slope |1.00 | Slope |0.04 | |

 | | | | | |

 Fayette------------------|Very limited | |Very limited | |Very limited |

 | Water erosion |1.00 | Water erosion |1.00 | Slope |1.00

 | Slope |1.00 | Slope |0.04 | |

 | | | | | |

961A: | | | | | |

 Burkhardt----------------|Not limited | |Not limited | |Somewhat limited |

 | | | | | Droughty |0.01

 | | | | | |

 Saude--------------------|Not limited | |Not limited | |Not limited |

 | | | | | |

962F: | | | | | |

 Sylvan-------------------|Very limited | |Very limited | |Very limited |

 | Water erosion |1.00 | Water erosion |1.00 | Slope |1.00

 | Slope |1.00 | Slope |0.04 | |

 | | | | | |

 Bold---------------------|Very limited | |Very limited | |Very limited |

 | Water erosion |1.00 | Water erosion |1.00 | Slope |1.00

 | Slope |1.00 | Slope |0.04 | |

 | | | | | |

1076A: | | | | | |

 Otter--------------------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00 | Ponding |1.00

 | saturated zone | | saturated zone | | Flooding |1.00

 | Ponding |1.00 | Ponding |1.00 | Depth to |1.00

 | Flooding |0.40 | Flooding |0.40 | saturated zone |

 | | | | | |

1082A: | | | | | |

 Millington---------------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00 | Ponding |1.00

 | saturated zone | | saturated zone | | Flooding |1.00

 | Ponding |1.00 | Ponding |1.00 | Depth to |1.00

 | Flooding |0.40 | Flooding |0.40 | saturated zone |

 | | | | | |

1107A: | | | | | |

 Sawmill------------------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00 | Ponding |1.00

 | saturated zone | | saturated zone | | Flooding |1.00

 | Ponding |1.00 | Ponding |1.00 | Depth to |1.00

 | Flooding |0.40 | Flooding |0.40 | saturated zone |

 | | | | | |

1334A: | | | | | |

 Birds--------------------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00 | Ponding |1.00

 | saturated zone | | saturated zone | | Flooding |1.00

 | Ponding |1.00 | Ponding |1.00 | Depth to |1.00

 | Flooding |0.40 | Flooding |0.40 | saturated zone |

 | | | | | |

1400A: | | | | | |

 Calco--------------------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00 | Ponding |1.00

 | saturated zone | | saturated zone | | Flooding |1.00

 | Ponding |1.00 | Ponding |1.00 | Depth to |1.00

 | Flooding |0.40 | Flooding |0.40 | saturated zone |

 | | | | | |
236 Soil Survey of

Table 11b.--Recreation--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 | ________________________________________________________________________________________________________

 | | | | | |

1654A: | | | | | |

 Moline-------------------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00 | Ponding |1.00

 | saturated zone | | saturated zone | | Flooding |1.00

 | Ponding |1.00 | Ponding |1.00 | Depth to |1.00

 | Too clayey |1.00 | Too clayey |1.00 | saturated zone |

 | Flooding |0.40 | Flooding |0.40 | Too clayey |1.00

 | | | | | |

3074A: | | | | | |

 Radford------------------|Somewhat limited | |Somewhat limited | |Very limited |

 | Depth to |0.44 | Depth to |0.44 | Flooding |1.00

 | saturated zone | | saturated zone | | Depth to |0.75

 | Flooding |0.40 | Flooding |0.40 | saturated zone |

 | | | | | |

3076A: | | | | | |

 Otter--------------------|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

 | Ponding |1.00 | Ponding |1.00 | saturated zone |

 | Flooding |0.40 | Flooding |0.40 | Ponding |1.00

 | | | | | |

3082A: | | | | | |

 Millington---------------|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 |

 | | | | | |

3083A: | | | | | |

 Wabash-------------------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00 | Ponding |1.00

 | saturated zone | | saturated zone | | Flooding |1.00

 | Ponding |1.00 | Ponding |1.00 | Depth to |1.00

 | Too clayey |1.00 | Too clayey |1.00 | saturated zone |

 | Flooding |0.40 | Flooding |0.40 | Too clayey |1.00

 | | | | | |

3107A: | | | | | |

 Sawmill------------------|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 |

 | | | | | |

3239A: | | | | | |

 Dorchester---------------|Somewhat limited | |Somewhat limited | |Very limited |

 | Flooding |0.40 | Flooding |0.40 | Flooding |1.00

 | | | | | |

3400A: | | | | | |

 Calco--------------------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00 | Ponding |1.00

 | saturated zone | | saturated zone | | Flooding |1.00

 | Ponding |1.00 | Ponding |1.00 | Depth to |1.00

 | Flooding |0.40 | Flooding |0.40 | saturated zone |

 | | | | | |

3415A: | | | | | |

 Orion--------------------|Somewhat limited | |Somewhat limited | |Very limited |

 | Depth to |0.44 | Depth to |0.44 | Flooding |1.00

 | saturated zone | | saturated zone | | Depth to |0.75

 | Flooding |0.40 | Flooding |0.40 | saturated zone |

 | | | | | |
Rock Island County, Illinois 237

Table 11b.--Recreation--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 | ________________________________________________________________________________________________________

 | | | | | |

3428A: | | | | | |

 Coffeen------------------|Somewhat limited | |Somewhat limited | |Very limited |

 | Depth to |0.44 | Depth to |0.44 | Flooding |1.00

 | saturated zone | | saturated zone | | Depth to |0.75

 | Flooding |0.40 | Flooding |0.40 | saturated zone |

 | | | | | |

3451A: | | | | | |

 Lawson-------------------|Somewhat limited | |Somewhat limited | |Very limited |

 | Depth to |0.44 | Depth to |0.44 | Flooding |1.00

 | saturated zone | | saturated zone | | Depth to |0.75

 | Flooding |0.40 | Flooding |0.40 | saturated zone |

 | | | | | |

3646L: | | | | | |

 Fluvaquents--------------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00 | Ponding |1.00

 | saturated zone | | saturated zone | | Flooding |1.00

 | Ponding |1.00 | Ponding |1.00 | Depth to |1.00

 | Flooding |0.40 | Flooding |0.40 | saturated zone |

 | | | | | |

7076A: | | | | | |

 Otter--------------------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00 | Ponding |1.00

 | saturated zone | | saturated zone | | Depth to |1.00

 | Ponding |1.00 | Ponding |1.00 | saturated zone |

 | | | | | |

7083A: | | | | | |

 Wabash-------------------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00 | Ponding |1.00

 | saturated zone | | saturated zone | | Depth to |1.00

 | Ponding |1.00 | Ponding |1.00 | saturated zone |

 | Too clayey |1.00 | Too clayey |1.00 | Too clayey |1.00

 | | | | | |

7107A: | | | | | |

 Sawmill------------------|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 |

 | | | | | |

7239A: | | | | | |

 Dorchester---------------|Not limited | |Not limited | |Not limited |

 | | | | | |

7304A: | | | | | |

 Landes-------------------|Not limited | |Not limited | |Not limited |

 | | | | | |

7415A: | | | | | |

 Orion--------------------|Not limited | |Not limited | |Somewhat limited |

 | | | | | Depth to |0.19

 | | | | | saturated zone |

 | | | | | |

7428A: | | | | | |

 Coffeen------------------|Somewhat limited | |Somewhat limited | |Somewhat limited |

 | Depth to |0.44 | Depth to |0.44 | Depth to |0.75

 | saturated zone | | saturated zone | | saturated zone |

 | | | | | |

7451A: | | | | | |

 Lawson-------------------|Somewhat limited | |Somewhat limited | |Somewhat limited |

 | Depth to |0.44 | Depth to |0.44 | Depth to |0.75

 | saturated zone | | saturated zone | | saturated zone |

 | | | | | |
238 Soil Survey of

Table 11b.--Recreation--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 | ________________________________________________________________________________________________________

 | | | | | |

7654A: | | | | | |

 Moline-------------------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00 | Ponding |1.00

 | saturated zone | | saturated zone | | Depth to |1.00

 | Ponding |1.00 | Ponding |1.00 | saturated zone |

 | Too clayey |1.00 | Too clayey |1.00 | Too clayey |1.00

 | | | | | |

8107+: | | | | | |

 Sawmill------------------|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

 | | | | | |

8302A: | | | | | |

 Ambraw-------------------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00 | Ponding |1.00

 | saturated zone | | saturated zone | | Depth to |1.00

 | Ponding |1.00 | Ponding |1.00 | saturated zone |

 | | | | | Flooding |0.60

 | | | | | |

8400A: | | | | | |

 Calco--------------------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00 | Ponding |1.00

 | saturated zone | | saturated zone | | Depth to |1.00

 | Ponding |1.00 | Ponding |1.00 | saturated zone |

 | | | | | Flooding |0.60

 | | | | | |

8404A: | | | | | |

 Titus--------------------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00 | Ponding |1.00

 | saturated zone | | saturated zone | | Depth to |1.00

 | Ponding |1.00 | Ponding |1.00 | saturated zone |

 | | | | | Flooding |0.60

 | | | | | | ________________________________________________________________________________________________________
Rock Island County, Illinois 239

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 | | | Wild | | | | | | |

 and soil name | Grain |Grasses | herba- |Hardwood| Conif- |Wetland |Shallow |Openland|Woodland|Wetland

 |and seed| and | ceous | trees | erous | plants | water |wildlife|wildlife|wildlife

 | crops |legumes | plants | | plants | | areas | | | _____________________________________________________________________________________________________________

 | | | | | | | | | |

8D2, 8D3: | | | | | | | | | |

 Hickory-----------|Fair |Good |Good |Good |Good |Very |Very |Good |Good |Very

 | | | | | | poor. | poor. | | | poor.

 | | | | | | | | | |

8F, 8F3: | | | | | | | | | |

 Hickory-----------|Very |Fair |Good |Good |Good |Very |Very |Fair |Good |Very

 | poor. | | | | | poor. | poor. | | | poor.

 | | | | | | | | | |

19C3: | | | | | | | | | |

 Sylvan------------|Fair |Good |Good |Good |Good |Poor |Very |Good |Good |Very

 | | | | | | | poor. | | | poor.

 | | | | | | | | | |

19D, 19D3: | | | | | | | | | |

 Sylvan------------|Fair |Good |Good |Good |Good |Very |Very |Good |Good |Very

 | | | | | | poor. | poor. | | | poor.

 | | | | | | | | | |

19F, 19F3: | | | | | | | | | |

 Sylvan------------|Very |Fair |Good |Good |Good |Very |Very |Fair |Good |Very

 | poor. | | | | | poor. | poor. | | | poor.

 | | | | | | | | | |

45A: | | | | | | | | | |

 Denny-------------|Poor |Poor |Poor |Poor |Poor |Good |Good |Poor |Poor |Good.

 | | | | | | | | | |

51A: | | | | | | | | | |

 Muscatune---------|Good |Good |Good |Good |Good |Fair |Fair |Good |Good |Fair.

 | | | | | | | | | |

61A: | | | | | | | | | |

 Atterberry--------|Fair |Good |Good |Good |Good |Fair |Fair |Good |Good |Fair.

 | | | | | | | | | |

68A: | | | | | | | | | |

 Sable-------------|Fair |Good |Good |Fair |Fair |Good |Good |Good |Fair |Good.

 | | | | | | | | | |

86B: | | | | | | | | | |

 Osco--------------|Good |Good |Good |Good |Good |Poor |Very |Good |Good |Very

 | | | | | | | poor. | | | poor.

 | | | | | | | | | |

86C2: | | | | | | | | | |

 Osco--------------|Fair |Good |Good |Good |Good |Poor |Very |Good |Good |Very

 | | | | | | | poor. | | | poor.

 | | | | | | | | | |

87A: | | | | | | | | | |

 Dickinson---------|Good |Good |Good |Good |Good |Poor |Very |Good |Good |Very

 | | | | | | | poor. | | | poor.

 | | | | | | | | | |

87C2: | | | | | | | | | |

 Dickinson---------|Fair |Good |Good |Good |Good |Very |Very |Good |Good |Very

 | | | | | | poor. | poor. | | | poor.

 | | | | | | | | | |

88A: | | | | | | | | | |

 Sparta------------|Poor |Poor |Fair |Poor |Fair |Very |Very |Poor |Fair |Very

 | | | | | | poor. | poor. | | | poor.

 | | | | | | | | | |

172A: | | | | | | | | | |

 Hoopeston---------|Fair |Good |Good |Good |Good |Fair |Poor |Good |Good |Poor.

 | | | | | | | | | |

212B: | | | | | | | | | |

 Thebes------------|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 | | | Wild | | | | | | |

 and soil name | Grain |Grasses | herba- |Hardwood| Conif- |Wetland |Shallow |Openland|Woodland|Wetland

 |and seed| and | ceous | trees | erous | plants | water |wildlife|wildlife|wildlife

 | crops |legumes | plants | | plants | | areas | | | _____________________________________________________________________________________________________________

 | | | | | | | | | |

250D: | | | | | | | | | |

 Velma-------------|Fair |Good |Good |Good |Good |Very |Very |Good |Good |Very

 | | | | | | poor. | poor. | | | poor.

 | | | | | | | | | |

261A: | | | | | | | | | |

 Niota-------------|Poor |Fair |Good |Fair |Fair |Good |Good |Fair |Fair |Good.

 | | | | | | | | | |

274B, 274B2: | | | | | | | | | |

 Seaton------------|Good |Good |Good |Good |Good |Poor |Very |Good |Good |Very

 | | | | | | | poor. | | | poor.

 | | | | | | | | | |

274C2: | | | | | | | | | |

 Seaton------------|Fair |Good |Good |Good |Good |Poor |Very |Good |Good |Very

 | | | | | | | poor. | | | poor.

 | | | | | | | | | |

274D2: | | | | | | | | | |

 Seaton------------|Fair |Good |Good |Good |Good |Very |Very |Good |Good |Very

 | | | | | | poor. | poor. | | | poor.

 | | | | | | | | | |

275A: | | | | | | | | | |

 Joy---------------|Fair |Good |Good |Good |Good |Fair |Fair |Good |Good |Fair.

 | | | | | | | | | |

278A: | | | | | | | | | |

 Stronghurst-------|Fair |Good |Good |Good |Good |Fair |Fair |Good |Good |Fair.

 | | | | | | | | | |

279A, 279B: | | | | | | | | | |

 Rozetta-----------|Good |Good |Good |Good |Good |Poor |Very |Good |Good |Very

 | | | | | | | poor. | | | poor.

 | | | | | | | | | |

280B, 280B2: | | | | | | | | | |

 Fayette-----------|Good |Good |Good |Good |Good |Poor |Very |Good |Good |Very

 | | | | | | | poor. | | | poor.

 | | | | | | | | | |

280C2, 280C3: | | | | | | | | | |

 Fayette-----------|Fair |Good |Good |Good |Good |Poor |Very |Good |Good |Very

 | | | | | | | poor. | | | poor.

 | | | | | | | | | |

317A: | | | | | | | | | |

 Millsdale---------|Poor |Poor |Fair |Poor |Poor |Good |Fair |Poor |Poor |Fair.

 | | | | | | | | | |

430A, 430B: | | | | | | | | | |

 Raddle------------|Good |Good |Good |Good |Good |Poor |Very |Good |Good |Very

 | | | | | | | poor. | | | poor.

 | | | | | | | | | |

525A: | | | | | | | | | |

 Joslin------------|Good |Good |Good |Good |Good |Poor |Very |Good |Good |Very

 | | | | | | | poor. | | | poor.

 | | | | | | | | | |

567C2: | | | | | | | | | |

 Elkhart-----------|Fair |Good |Good |Good |Good |Poor |Very |Good |Good |Very

 | | | | | | | poor. | | | poor.

 | | | | | | | | | |

567D2: | | | | | | | | | |

 Elkhart-----------|Fair |Good |Good |Good |Good |Very |Very |Good |Good |Very

 | | | | | | poor. | poor. | | | poor.

 | | | | | | | | | |

570B: | | | | | | | | | |

 Martinsville------|Good |Good |Good |Good |Good |Poor |Very |Good |Good |Very

 | | | | | | | poor. | | | poor.

 | | | | | | | | | |

570C3: | | | | | | | | | |

 Martinsville------|Fair |Good |Good |Good |Good |Poor |Very |Good |Good |Very

 | | | | | | | poor. | | | poor.

 | | | | | | | | | |
Rock Island County, Illinois 241

Table 12.--Wildlife Habitat--Continued

_____________________________________________________________________________________________________________

 | Potential for habitat elements |Potential as habitat for-- _________________________________________________________________________________________

 Map symbol | | | Wild | | | | | | |

 and soil name | Grain |Grasses | herba- |Hardwood| Conif- |Wetland |Shallow |Openland|Woodland|Wetland

 |and seed| and | ceous | trees | erous | plants | water |wildlife|wildlife|wildlife

 | crops |legumes | plants | | plants | | areas | | | _____________________________________________________________________________________________________________

 | | | | | | | | | |

570D3: | | | | | | | | | |

 Martinsville------|Fair |Good |Good |Good |Good |Very |Very |Good |Good |Very

 | | | | | | poor. | poor. | | | poor.

 | | | | | | | | | |

647A: | | | | | | | | | |

 Lawler------------|Fair |Good |Good |Good |Good |Fair |Fair |Good |Good |Fair.

 | | | | | | | | | |

671A, 671B: | | | | | | | | | |

 Biggsville--------|Good |Good |Good |Good |Good |Poor |Very |Good |Good |Very

 | | | | | | | poor. | | | poor.

 | | | | | | | | | |

675A, 675B: | | | | | | | | | |

 Greenbush---------|Good |Good |Good |Good |Good |Poor |Very |Good |Good |Very

 | | | | | | | poor. | | | poor.

 | | | | | | | | | |

689B, 689D: | | | | | | | | | |

 Coloma------------|Poor |Poor |Fair |Fair |Fair |Very |Very |Fair |Fair |Very

 | | | | | | poor. | poor. | | | poor.

 | | | | | | | | | |

705A: | | | | | | | | | |

 Buckhart----------|Good |Good |Good |Good |Good |Poor |Poor |Good |Good |Poor.

 | | | | | | | | | |

727A: | | | | | | | | | |

 Waukee------------|Good |Good |Good |Good |Good |Poor |Very |Good |Good |Very

 | | | | | | | poor. | | | poor.

 | | | | | | | | | |

741F: | | | | | | | | | |

 Oakville----------|Poor |Poor |Fair |Poor |Fair |Very |Very |Poor |Fair |Very

 | | | | | | poor. | poor. | | | poor.

 | | | | | | | | | |

763A, 763B: | | | | | | | | | |

 Joslin------------|Good |Good |Good |Good |Good |Poor |Very |Good |Good |Very

 | | | | | | | poor. | | | poor.

 | | | | | | | | | |

764A: | | | | | | | | | |

 Coyne-------------|Good |Good |Good |Good |Good |Poor |Very |Good |Good |Very

 | | | | | | | poor. | | | poor.

 | | | | | | | | | |

764C: | | | | | | | | | |

 Coyne-------------|Fair |Good |Good |Good |Good |Poor |Very |Good |Good |Very

 | | | | | | | poor. | | | poor.

 | | | | | | | | | |

774A: | | | | | | | | | |

 Saude-------------|Good |Good |Good |Good |Good |Poor |Very |Good |Good |Very

 | | | | | | | poor. | | | poor.

 | | | | | | | | | |

800C. | | | | | | | | | |

 Psamments | | | | | | | | | |

 | | | | | | | | | |

802B. | | | | | | | | | |

 Orthents | | | | | | | | | |

 | | | | | | | | | |

864. | | | | | | | | | |

 Pits, quarries | | | | | | | | | |

 | | | | | | | | | |

865. | | | | | | | | | |

 Pits, gravel | | | | | | | | | |

 | | | | | | | | | |

898F3: | | | | | | | | | |

 Hickory-----------|Very |Fair |Good |Good |Good |Very |Very |Fair |Good |Very

 | poor. | | | | | poor. | poor. | | | poor.

 | | | | | | | | | |
242 Soil Survey of

Table 12.--Wildlife Habitat--Continued

_____________________________________________________________________________________________________________

 | Potential for habitat elements |Potential as habitat for-- _________________________________________________________________________________________

 Map symbol | | | Wild | | | | | | |

 and soil name | Grain |Grasses | herba- |Hardwood| Conif- |Wetland |Shallow |Openland|Woodland|Wetland

 |and seed| and | ceous | trees | erous | plants | water |wildlife|wildlife|wildlife

 | crops |legumes | plants | | plants | | areas | | | _____________________________________________________________________________________________________________

 | | | | | | | | | |

898F3: | | | | | | | | | |

 Sylvan------------|Very |Fair |Good |Good |Good |Very |Very |Fair |Good |Very

 | poor. | | | | | poor. | poor. | | | poor.

 | | | | | | | | | |

898G: | | | | | | | | | |

 Hickory-----------|Very |Poor |Good |Good |Good |Very |Very |Poor |Good |Very

 | poor. | | | | | poor. | poor. | | | poor.

 | | | | | | | | | |

 Sylvan------------|Very |Poor |Good |Good |Good |Very |Very |Poor |Good |Very

 | poor. | | | | | poor. | poor. | | | poor.

 | | | | | | | | | |

913D2: | | | | | | | | | |

 Marseilles--------|Fair |Good |Good |Good |Good |Very |Very |Good |Good |Very

 | | | | | | poor. | poor. | | | poor.

 | | | | | | | | | |

 Hickory-----------|Fair |Good |Good |Good |Good |Very |Very |Good |Good |Very

 | | | | | | poor. | poor. | | | poor.

 | | | | | | | | | |

913F: | | | | | | | | | |

 Marseilles--------|Very |Fair |Good |Good |Good |Very |Very |Fair |Good |Very

 | poor. | | | | | poor. | poor. | | | poor.

 | | | | | | | | | |

 Hickory-----------|Very |Fair |Good |Good |Good |Very |Very |Fair |Good |Very

 | poor. | | | | | poor. | poor. | | | poor.

 | | | | | | | | | |

913G: | | | | | | | | | |

 Marseilles--------|Very |Poor |Good |Good |Good |Very |Very |Poor |Good |Very

 | poor. | | | | | poor. | poor. | | | poor.

 | | | | | | | | | |

 Hickory-----------|Very |Poor |Good |Good |Good |Very |Very |Poor |Good |Very

 | poor. | | | | | poor. | poor. | | | poor.

 | | | | | | | | | |

917C2, 917D2: | | | | | | | | | |

 Oakville----------|Poor |Poor |Fair |Poor |Fair |Very |Very |Poor |Fair |Very

 | | | | | | poor. | poor. | | | poor.

 | | | | | | | | | |

 Tell--------------|Fair |Good |Good |Good |Good |Very |Very |Good |Good |Very

 | | | | | | poor. | poor. | | | poor.

 | | | | | | | | | |

943D2: | | | | | | | | | |

 Seaton------------|Fair |Good |Good |Good |Good |Very |Very |Good |Good |Very

 | | | | | | poor. | poor. | | | poor.

 | | | | | | | | | |

 Timula------------|Fair |Good |Good |Good |Good |Very |Very |Good |Good |Very

 | | | | | | poor. | poor. | | | poor.

 | | | | | | | | | |

943F2: | | | | | | | | | |

 Seaton------------|Very |Fair |Good |Good |Good |Very |Very |Fair |Good |Very

 | poor. | | | | | poor. | poor. | | | poor.

 | | | | | | | | | |

 Timula------------|Very |Fair |Good |Good |Good |Very |Very |Fair |Good |Very

 | poor. | | | | | poor. | poor. | | | poor.

 | | | | | | | | | |

944D2: | | | | | | | | | |

 Velma-------------|Fair |Good |Good |Good |Good |Very |Very |Good |Good |Very

 | | | | | | poor. | poor. | | | poor.

 | | | | | | | | | |

 Coatsburg---------|Fair |Fair |Fair |Fair |Fair |Very |Very |Fair |Fair |Very

 | | | | | | poor. | poor. | | | poor.

 | | | | | | | | | |
Rock Island County, Illinois 243

Table 12.--Wildlife Habitat--Continued

_____________________________________________________________________________________________________________

 | Potential for habitat elements |Potential as habitat for-- _________________________________________________________________________________________

 Map symbol | | | Wild | | | | | | |

 and soil name | Grain |Grasses | herba- |Hardwood| Conif- |Wetland |Shallow |Openland|Woodland|Wetland

 |and seed| and | ceous | trees | erous | plants | water |wildlife|wildlife|wildlife

 | crops |legumes | plants | | plants | | areas | | | _____________________________________________________________________________________________________________

 | | | | | | | | | |

946D3: | | | | | | | | | |

 Hickory-----------|Fair |Good |Good |Good |Good |Very |Very |Good |Good |Very

 | | | | | | poor. | poor. | | | poor.

 | | | | | | | | | |

 Atlas-------------|Fair |Good |Good |Good |Good |Very |Very |Good |Good |Very

 | | | | | | poor. | poor. | | | poor.

 | | | | | | | | | |

946F3: | | | | | | | | | |

 Hickory-----------|Very |Fair |Good |Good |Good |Very |Very |Fair |Good |Very

 | poor. | | | | | poor. | poor. | | | poor.

 | | | | | | | | | |

 Atlas-------------|Very |Fair |Good |Good |Good |Very |Very |Fair |Good |Very

 | poor. | | | | | poor. | poor. | | | poor.

 | | | | | | | | | |

959G: | | | | | | | | | |

 Strawn------------|Very |Poor |Good |Good |Good |Very |Very |Poor |Good |Very

 | poor. | | | | | poor. | poor. | | | poor.

 | | | | | | | | | |

 Chute-------------|Very |Poor |Fair |Poor |Poor |Very |Very |Poor |Poor |Very

 | poor. | | | | | poor. | poor. | | | poor.

 | | | | | | | | | |

960D2, 960D3: | | | | | | | | | |

 Hickory-----------|Fair |Good |Good |Good |Good |Very |Very |Good |Good |Very

 | | | | | | poor. | poor. | | | poor.

 | | | | | | | | | |

 Sylvan------------|Fair |Good |Good |Good |Good |Very |Very |Good |Good |Very

 | | | | | | poor. | poor. | | | poor.

 | | | | | | | | | |

 Fayette-----------|Fair |Good |Good |Good |Good |Very |Very |Good |Good |Very

 | | | | | | poor. | poor. | | | poor.

 | | | | | | | | | |

960F: | | | | | | | | | |

 Hickory-----------|Very |Fair |Good |Good |Good |Very |Very |Fair |Good |Very

 | poor. | | | | | poor. | poor. | | | poor.

 | | | | | | | | | |

 Sylvan------------|Very |Fair |Good |Good |Good |Very |Very |Fair |Good |Very

 | poor. | | | | | poor. | poor. | | | poor.

 | | | | | | | | | |

 Fayette-----------|Very |Fair |Good |Good |Good |Very |Very |Fair |Good |Very

 | poor. | | | | | poor. | poor. | | | poor.

 | | | | | | | | | |

961A: | | | | | | | | | |

 Burkhardt---------|Fair |Fair |Fair |Fair |Fair |Very |Very |Fair |Fair |Very

 | | | | | | poor. | poor. | | | poor.

 | | | | | | | | | |

 Saude-------------|Good |Good |Good |Good |Good |Poor |Very |Good |Good |Very

 | | | | | | | poor. | | | poor.

 | | | | | | | | | |

962F: | | | | | | | | | |

 Sylvan------------|Very |Fair |Good |Good |Good |Very |Very |Fair |Good |Very

 | poor. | | | | | poor. | poor. | | | poor.

 | | | | | | | | | |

 Bold--------------|Very |Fair |Good |Good |Good |Very |Very |Fair |Good |Very

 | poor. | | | | | poor. | poor. | | | poor.

 | | | | | | | | | |

1076A: | | | | | | | | | |

 Otter-------------|Poor |Fair |Fair |Fair |Fair |Good |Good |Fair |Fair |Good.

 | | | | | | | | | |

1082A: | | | | | | | | | |

 Millington--------|Poor |Fair |Fair |Fair |Fair |Good |Good |Fair |Fair |Good.

 | | | | | | | | | |

1107A: | | | | | | | | | |

 Sawmill-----------|Poor |Fair |Fair |Fair |Fair |Good |Good |Fair |Fair |Good.

 | | | | | | | | | |
244 Soil Survey of

Table 12.--Wildlife Habitat--Continued

_____________________________________________________________________________________________________________

 | Potential for habitat elements |Potential as habitat for-- _________________________________________________________________________________________

 Map symbol | | | Wild | | | | | | |

 and soil name | Grain |Grasses | herba- |Hardwood| Conif- |Wetland |Shallow |Openland|Woodland|Wetland

 |and seed| and | ceous | trees | erous | plants | water |wildlife|wildlife|wildlife

 | crops |legumes | plants | | plants | | areas | | | _____________________________________________________________________________________________________________

 | | | | | | | | | |

1334A: | | | | | | | | | |

 Birds-------------|Poor |Fair |Fair |Fair |Fair |Good |Good |Fair |Fair |Good.

 | | | | | | | | | |

1400A: | | | | | | | | | |

 Calco-------------|Poor |Fair |Fair |Fair |Fair |Good |Good |Fair |Fair |Good.

 | | | | | | | | | |

1654A: | | | | | | | | | |

 Moline------------|Poor |Fair |Fair |Fair |Fair |Good |Good |Fair |Fair |Good.

 | | | | | | | | | |

3074A: | | | | | | | | | |

 Radford-----------|Poor |Fair |Fair |Good |Good |Fair |Fair |Fair |Good |Fair.

 | | | | | | | | | |

3076A: | | | | | | | | | |

 Otter-------------|Poor |Fair |Fair |Fair |Fair |Good |Good |Fair |Fair |Good.

 | | | | | | | | | |

3082A: | | | | | | | | | |

 Millington--------|Poor |Fair |Fair |Fair |Fair |Good |Good |Fair |Fair |Good.

 | | | | | | | | | |

3083A: | | | | | | | | | |

 Wabash------------|Poor |Fair |Fair |Fair |Fair |Good |Good |Fair |Fair |Good.

 | | | | | | | | | |

3107A: | | | | | | | | | |

 Sawmill-----------|Poor |Fair |Fair |Fair |Fair |Good |Good |Fair |Fair |Good.

 | | | | | | | | | |

3239A: | | | | | | | | | |

 Dorchester--------|Poor |Fair |Fair |Fair |Fair |Poor |Poor |Fair |Fair |Poor.

 | | | | | | | | | |

3400A: | | | | | | | | | |

 Calco-------------|Poor |Fair |Fair |Fair |Fair |Good |Good |Fair |Fair |Good.

 | | | | | | | | | |

3415A: | | | | | | | | | |

 Orion-------------|Poor |Fair |Fair |Good |Good |Fair |Fair |Good |Fair |Fair.

 | | | | | | | | | |

3428A: | | | | | | | | | |

 Coffeen-----------|Poor |Fair |Fair |Fair |Fair |Fair |Poor |Fair |Fair |Fair.

 | | | | | | | | | |

3451A: | | | | | | | | | |

 Lawson------------|Poor |Fair |Fair |Good |Good |Fair |Fair |Fair |Good |Fair.

 | | | | | | | | | |

3646L: | | | | | | | | | |

 Fluvaquents-------|Very |Poor |Fair |Fair |Fair |Good |Fair |Poor |Fair |Fair.

 | poor. | | | | | | | | |

 | | | | | | | | | |

7076A: | | | | | | | | | |

 Otter-------------|Poor |Fair |Fair |Fair |Fair |Good |Good |Fair |Fair |Good.

 | | | | | | | | | |

7083A: | | | | | | | | | |

 Wabash------------|Poor |Poor |Poor |Poor |Poor |Good |Good |Poor |Poor |Good.

 | | | | | | | | | |

7107A: | | | | | | | | | |

 Sawmill-----------|Poor |Fair |Fair |Fair |Fair |Good |Good |Fair |Fair |Good.

 | | | | | | | | | |

7239A: | | | | | | | | | |

 Dorchester--------|Fair |Fair |Fair |Fair |Poor |Poor |Poor |Fair |Poor |Poor.

 | | | | | | | | | |

7304A: | | | | | | | | | |

 Landes------------|Good |Good |Good |Good |Good |Poor |Very |Good |Good |Very

 | | | | | | | poor. | | | poor.

 | | | | | | | | | |

7415A: | | | | | | | | | |

 Orion-------------|Fair |Good |Good |Good |Good |Fair |Fair |Good |Good |Fair.

 | | | | | | | | | |
Rock Island County, Illinois 245

Table 12.--Wildlife Habitat--Continued

_____________________________________________________________________________________________________________

 | Potential for habitat elements |Potential as habitat for-- _________________________________________________________________________________________

 Map symbol | | | Wild | | | | | | |

 and soil name | Grain |Grasses | herba- |Hardwood| Conif- |Wetland |Shallow |Openland|Woodland|Wetland

 |and seed| and | ceous | trees | erous | plants | water |wildlife|wildlife|wildlife

 | crops |legumes | plants | | plants | | areas | | | _____________________________________________________________________________________________________________

 | | | | | | | | | |

7428A: | | | | | | | | | |

 Coffeen-----------|Fair |Good |Good |Good |Good |Fair |Poor |Good |Good |Fair.

 | | | | | | | | | |

7451A: | | | | | | | | | |

 Lawson------------|Fair |Good |Good |Good |Good |Good |Fair |Good |Good |Fair.

 | | | | | | | | | |

7654A: | | | | | | | | | |

 Moline------------|Poor |Fair |Fair |Fair |Poor |Good |Good |Poor |Poor |Good.

 | | | | | | | | | |

8107+: | | | | | | | | | |

 Sawmill-----------|Fair |Good |Good |Fair |Fair |Good |Good |Fair |Fair |Good.

 | | | | | | | | | |

8302A: | | | | | | | | | |

 Ambraw------------|Fair |Fair |Fair |Fair |Fair |Good |Good |Fair |Fair |Good.

 | | | | | | | | | |

8400A: | | | | | | | | | |

 Calco-------------|Fair |Fair |Good |Fair |Poor |Good |Good |Fair |Fair |Good.

 | | | | | | | | | |

8404A: | | | | | | | | | |

 Titus-------------|Fair |Fair |Fair |Fair |Fair |Good |Good |Fair |Fair |Good.

 | | | | | | | | | | _____________________________________________________________________________________________________________
246 Soil Survey of

Table 13.--Hydric Soils

(Only map units that have hydric components are listed. See text for a description of

 hydric qualities)

_______________________________________________________________________________________

 | | |

 Map symbol and | Component | Hydric |Local landform

 map unit name | | status |

 | | | _______________________________________________________________________________________

 | | |

45A: | | |

 Denny silt loam, 0 to 2 percent slopes |Denny | Yes |depression

 | | |

51A: | | |

 Muscatune silt loam, 0 to 2 percent slopes |Muscatune | No |ground moraine

 |Denny | Yes |depression

 |Sable | Yes |depression

 | | |

61A: | | |

 Atterberry silt loam, 0 to 2 percent slopes |Atterberry | No |ground moraine

 |Sable | Yes |depression

 | | |

68A: | | |

 Sable silty clay loam, 0 to 2 percent slopes |Sable | Yes |ground moraine

 | | |

86B: | | |

 Osco silt loam, 2 to 5 percent slopes |Osco | No |ground moraine

 |Denny | Yes |depression

 |Sable | Yes |depression

 | | |

86C2: | | |

 Osco silt loam, 5 to 10 percent slopes, eroded |Osco | No |ground moraine

 |Denny | Yes |depression

 |Sable | Yes |depression

 | | |

261A: | | |

 Niota silt loam, 0 to 2 percent slopes |Niota | Yes |lake plain

 | | |

275A: | | |

 Joy silt loam, 0 to 2 percent slopes |Joy | No |ground moraine

 |Sable | Yes |depression

 | | |

279A: | | |

 Rozetta silt loam, 0 to 2 percent slopes |Rozetta | No |ground moraine

 |Denny | Yes |depression

 | | |

317A: | | |

 Millsdale silty clay loam, 0 to 2 percent slopes|Millsdale | Yes |lake plain

 | | |

671B: | | |

 Biggsville silt loam, 2 to 5 percent slopes |Biggsville | No |ground moraine

 |Denny | Yes |depression

 | | |

675A: | | |

 Greenbush silt loam, 0 to 2 percent slopes |Greenbush | No |ground moraine

 |Denny | Yes |depression

 | | |

675B: | | |

 Greenbush silt loam, 2 to 5 percent slopes |Greenbush | No |ground moraine

 |Denny | Yes |depression

 | | |

705A: | | |

 Buckhart silt loam, 0 to 2 percent slopes |Buckhart | No |knoll, ground

 | | | moraine

 |Sable | Yes |toeslope

 |Denny | Yes |depression

 | | |
Rock Island County, Illinois 247

Table 13.--Hydric Soils--Continued

_______________________________________________________________________________________

 | | |

 Map symbol and | Component | Hydric |Local landform

 map unit name | | status |

 | | | _______________________________________________________________________________________

 | | |

944D2: | | |

 Velma-Coatsburg silt loams, 10 to 18 percent |Velma | No |ground moraine

 slopes, eroded |Coatsburg | Yes |ground moraine

 | | |

1076A: | | |

 Otter silt loam, undrained, 0 to 2 percent |Otter | Yes |flood plain

 slopes, frequently flooded | | |

 | | |

1082A: | | |

 Millington silt loam, undrained, 0 to 2 |Millington | Yes |flood plain

 percent slopes, frequently flooded | | |

 | | |

1107A: | | |

 Sawmill silty clay loam, undrained, 0 to 2 |Sawmill | Yes |flood plain

 percent slopes, frequently flooded | | |

 | | |

1334A: | | |

 Birds silt loam, undrained, 0 to 2 percent |Birds | Yes |flood plain

 slopes, frequently flooded | | |

 | | |

1400A: | | |

 Calco silty clay loam, undrained, 0 to 2 percent|Calco | Yes |flood plain

 slopes, frequently flooded | | |

 | | |

1654A: | | |

 Moline silty clay, undrained, 0 to 2 percent |Moline | Yes |flood plain

 slopes, frequently flooded | | |

 | | |

3076A: | | |

 Otter silt loam, 0 to 2 percent slopes, |Otter | Yes |flood plain

 frequently flooded | | |

 | | |

3082A: | | |

 Millington silt loam, 0 to 2 percent slopes, |Millington | Yes |flood plain

 frequently flooded | | |

 | | |

3083A: | | |

 Wabash silty clay, 0 to 2 percent slopes, |Wabash | Yes |flood plain

 frequently flooded | | |

 | | |

3107A: | | |

 Sawmill silty clay loam, 0 to 2 percent slopes, |Sawmill | Yes |flood plain

 frequently flooded | | |

 | | |

3239A: | | |

 Dorchester silt loam, 0 to 2 percent slopes, |Dorchester | No |flood plain

 frequently flooded |Sawmill | Yes |flood plain

 | | |

3400A: | | |

 Calco silty clay loam, 0 to 2 percent slopes, |Calco | Yes |flood plain

 frequently flooded | | |

 | | |

3415A: | | |

 Orion silt loam, 0 to 2 percent slopes, |Orion | No |flood plain

 frequently flooded |Sawmill | Yes |flood plain

 | | |

3451A: | | |

 Lawson silt loam, 0 to 2 percent slopes, |Lawson | No |flood plain

 frequently flooded |Sawmill | Yes |swale

 | | |
248 Soil Survey of

Table 13.--Hydric Soils--Continued

_______________________________________________________________________________________

 | | |

 Map symbol and | Component | Hydric |Local landform

 map unit name | | status |

 | | | _______________________________________________________________________________________

 | | |

3646L: | | |

 Fluvaquents, loamy, 0 to 2 percent slopes, |Fluvaquents | Yes |flood plain

 frequently flooded, long duration | | |

 | | |

7076A: | | |

 Otter silt loam, 0 to 2 percent slopes, rarely |Otter | Yes |flood plain

 flooded | | |

 | | |

7083A: | | |

 Wabash silty clay, 0 to 2 percent slopes, rarely|Wabash | Yes |flood plain

 flooded | | |

 | | |

7107A: | | |

 Sawmill silty clay loam, 0 to 2 percent slopes, |Sawmill | Yes |flood plain

 rarely flooded | | |

 | | |

7239A: | | |

 Dorchester silt loam, 0 to 2 percent slopes, |Dorchester | No |flood plain

 rarely flooded |Sawmill | Yes |flood plain

 | | |

7428A: | | |

 Coffeen silt loam, 0 to 2 percent slopes, rarely|Coffeen | No |flood plain

 flooded |Sawmill | Yes |flood plain

 | | |

7451A: | | |

 Lawson silt loam, 0 to 2 percent slopes, rarely |Lawson | No |flood plain

 flooded |Millington | Yes |flood plain

 |Sawmill | Yes |flood plain

 | | |

7654A: | | |

 Moline silty clay, 0 to 2 percent slopes, rarely|Moline | Yes |flood plain

 flooded | | |

 | | |

8107+: | | |

 Sawmill silt loam, 0 to 2 percent slopes, |Sawmill | Yes |flood plain

 occasionally flooded, overwash | | |

 | | |

8302A: | | |

 Ambraw loam, 0 to 2 percent slopes, occasionally|Ambraw | Yes |flood plain

 flooded | | |

 | | |

8400A: | | |

 Calco silty clay loam, 0 to 2 percent slopes, |Calco | Yes |flood plain

 occasionally flooded | | |

 | | |

8404A: | | |

 Titus silty clay loam, 0 to 2 percent slopes, |Titus | Yes |flood plain

 occasionally flooded | | |

 | | | _______________________________________________________________________________________
Rock Island County, Illinois 249

Table 14a.--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 potential limitation. 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 | ___________________________________________________________________________________________________

 | | | | | |

8D2, 8D3: | | | | | |

 Hickory-------------|Somewhat limited | |Somewhat limited | |Very limited |

 | Slope |0.98 | Slope |0.98 | Slope |1.00

 | Shrink-swell |0.50 | Shrink-swell |0.50 | Shrink-swell |0.50

 | | | | | |

8F, 8F3: | | | | | |

 Hickory-------------|Very limited | |Very limited | |Very limited |

 | Slope |1.00 | Slope |1.00 | Slope |1.00

 | Shrink-swell |0.50 | Shrink-swell |0.50 | Shrink-swell |0.50

 | | | | | |

19C3: | | | | | |

 Sylvan--------------|Somewhat limited | |Somewhat limited | |Somewhat limited |

 | Shrink-swell |0.50 | Shrink-swell |0.50 | Slope |0.94

 | Slope |0.12 | Slope |0.12 | Shrink-swell |0.50

 | | | | | |

19D: | | | | | |

 Sylvan--------------|Somewhat limited | |Somewhat limited | |Very limited |

 | Slope |0.98 | Slope |0.98 | Slope |1.00

 | Shrink-swell |0.50 | Shrink-swell |0.50 | Shrink-swell |0.50

 | | | | | |

19D3: | | | | | |

 Sylvan--------------|Somewhat limited | |Somewhat limited | |Very limited |

 | Slope |0.98 | Slope |0.98 | Slope |1.00

 | Shrink-swell |0.50 | | | Shrink-swell |0.50

 | | | | | |

19F, 19F3: | | | | | |

 Sylvan--------------|Very limited | |Very limited | |Very limited |

 | Slope |1.00 | Slope |1.00 | Slope |1.00

 | Shrink-swell |0.50 | | | Shrink-swell |0.50

 | | | | | |

45A: | | | | | |

 Denny---------------|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 |

 | Shrink-swell |1.00 | Shrink-swell |1.00 | Shrink-swell |1.00

 | | | | | |

51A: | | | | | |

 Muscatune-----------|Somewhat limited | |Very limited | |Somewhat limited |

 | Depth to |0.99 | Depth to |1.00 | Depth to |0.99

 | saturated zone | | saturated zone | | saturated zone |

 | Shrink-swell |0.50 | Shrink-swell |0.50 | Shrink-swell |0.50

 | | | | | |

61A: | | | | | |

 Atterberry----------|Somewhat limited | |Very limited | |Somewhat limited |

 | Depth to |0.99 | Depth to |1.00 | Depth to |0.99

 | saturated zone | | saturated zone | | saturated zone |

 | Shrink-swell |0.50 | Shrink-swell |0.50 | Shrink-swell |0.50

 | | | | | |

68A: | | | | | |

 Sable---------------|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 |

 | Shrink-swell |0.50 | Shrink-swell |0.50 | Shrink-swell |0.50

 | | | | | |
250 Soil Survey of

Table 14a.--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 | ___________________________________________________________________________________________________

 | | | | | |

86B: | | | | | |

 Osco----------------|Somewhat limited | |Somewhat limited | |Somewhat limited |

 | Shrink-swell |0.50 | Shrink-swell |0.50 | Shrink-swell |0.50

 | | | Depth to |0.15 | |

 | | | saturated zone | | |

 | | | | | |

86C2: | | | | | |

 Osco----------------|Somewhat limited | |Somewhat limited | |Somewhat limited |

 | Shrink-swell |0.50 | Shrink-swell |0.50 | Slope |0.94

 | Slope |0.12 | Depth to |0.15 | Shrink-swell |0.50

 | | | saturated zone | | |

 | | | Slope |0.12 | |

 | | | | | |

87A: | | | | | |

 Dickinson-----------|Not limited | |Not limited | |Not limited |

 | | | | | |

87C2: | | | | | |

 Dickinson-----------|Somewhat limited | |Somewhat limited | |Somewhat limited |

 | Slope |0.12 | Slope |0.12 | Slope |0.94

 | | | | | |

88A: | | | | | |

 Sparta--------------|Not limited | |Not limited | |Not limited |

 | | | | | |

172A: | | | | | |

 Hoopeston-----------|Somewhat limited | |Very limited | |Somewhat limited |

 | Depth to |0.84 | Depth to |1.00 | Depth to |0.84

 | saturated zone | | saturated zone | | saturated zone |

 | | | | | |

212B: | | | | | |

 Thebes--------------|Somewhat limited | |Somewhat limited | |Somewhat limited |

 | Shrink-swell |0.50 | Shrink-swell |0.50 | Shrink-swell |0.50

 | | | | | |

250D: | | | | | |

 Velma---------------|Somewhat limited | |Somewhat limited | |Very limited |

 | Slope |0.98 | Slope |0.98 | Slope |1.00

 | Shrink-swell |0.50 | Shrink-swell |0.50 | Shrink-swell |0.50

 | | | | | |

261A: | | | | | |

 Niota---------------|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 |

 | Shrink-swell |1.00 | Shrink-swell |0.50 | Shrink-swell |1.00

 | | | | | |

274B, 274B2: | | | | | |

 Seaton--------------|Not limited | |Not limited | |Not limited |

 | | | | | |

274C2: | | | | | |

 Seaton--------------|Somewhat limited | |Somewhat limited | |Somewhat limited |

 | Slope |0.12 | Slope |0.12 | Slope |0.94

 | | | | | |

274D2: | | | | | |

 Seaton--------------|Somewhat limited | |Somewhat limited | |Very limited |

 | Slope |0.98 | Slope |0.98 | Slope |1.00

 | | | | | |

275A: | | | | | |

 Joy-----------------|Somewhat limited | |Very limited | |Somewhat limited |

 | Depth to |0.99 | Depth to |1.00 | Depth to |0.99

 | saturated zone | | saturated zone | | saturated zone |

 | | | | | |
Rock Island County, Illinois 251

Table 14a.--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 | ___________________________________________________________________________________________________

 | | | | | |

278A: | | | | | |

 Stronghurst---------|Somewhat limited | |Very limited | |Somewhat limited |

 | Depth to |0.99 | Depth to |1.00 | Depth to |0.99

 | saturated zone | | saturated zone | | saturated zone |

 | Shrink-swell |0.50 | Shrink-swell |0.50 | Shrink-swell |0.50

 | | | | | |

279A, 279B: | | | | | |

 Rozetta-------------|Somewhat limited | |Somewhat limited | |Somewhat limited |

 | Shrink-swell |0.50 | Shrink-swell |0.50 | Shrink-swell |0.50

 | | | Depth to |0.15 | |

 | | | saturated zone | | |

 | | | | | |

280B, 280B2: | | | | | |

 Fayette-------------|Somewhat limited | |Somewhat limited | |Somewhat limited |

 | Shrink-swell |0.50 | Shrink-swell |0.50 | Shrink-swell |0.50

 | | | | | |

280C2, 280C3: | | | | | |

 Fayette-------------|Somewhat limited | |Somewhat limited | |Somewhat limited |

 | Shrink-swell |0.50 | Shrink-swell |0.50 | Slope |0.94

 | Slope |0.12 | Slope |0.12 | Shrink-swell |0.50

 | | | | | |

317A: | | | | | |

 Millsdale-----------|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 |

 | Shrink-swell |1.00 | Depth to bedrock |1.00 | Shrink-swell |1.00

 | Depth to bedrock |0.42 | Shrink-swell |1.00 | Depth to bedrock |0.42

 | | | | | |

430A, 430B: | | | | | |

 Raddle--------------|Not limited | |Not limited | |Not limited |

 | | | | | |

525A: | | | | | |

 Joslin--------------|Somewhat limited | |Somewhat limited | |Somewhat limited |

 | Shrink-swell |0.50 | Shrink-swell |0.50 | Shrink-swell |0.50

 | | | Depth to bedrock |0.42 | |

 | | | | | |

567C2: | | | | | |

 Elkhart-------------|Somewhat limited | |Somewhat limited | |Somewhat limited |

 | Shrink-swell |0.50 | Depth to |0.16 | Slope |0.94

 | Slope |0.12 | saturated zone | | Shrink-swell |0.50

 | | | Slope |0.12 | |

 | | | | | |

567D2: | | | | | |

 Elkhart-------------|Somewhat limited | |Somewhat limited | |Very limited |

 | Slope |0.98 | Slope |0.98 | Slope |1.00

 | Shrink-swell |0.50 | Depth to |0.16 | Shrink-swell |0.50

 | | | saturated zone | | |

 | | | | | |

570B: | | | | | |

 Martinsville--------|Somewhat limited | |Not limited | |Somewhat limited |

 | Shrink-swell |0.50 | | | Shrink-swell |0.50

 | | | | | |

570C3: | | | | | |

 Martinsville--------|Somewhat limited | |Somewhat limited | |Somewhat limited |

 | Shrink-swell |0.50 | Slope |0.12 | Slope |0.94

 | Slope |0.12 | | | Shrink-swell |0.50

 | | | | | |

570D3: | | | | | |

 Martinsville--------|Somewhat limited | |Somewhat limited | |Very limited |

 | Slope |0.98 | Slope |0.98 | Slope |1.00

 | Shrink-swell |0.50 | | | Shrink-swell |0.50

 | | | | | |
252 Soil Survey of

Table 14a.--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 | ___________________________________________________________________________________________________

 | | | | | |

647A: | | | | | |

 Lawler--------------|Somewhat limited | |Very limited | |Somewhat limited |

 | Depth to |0.99 | Depth to |1.00 | Depth to |0.99

 | saturated zone | | saturated zone | | saturated zone |

 | | | | | |

671A, 671B: | | | | | |

 Biggsville----------|Not limited | |Somewhat limited | |Not limited |

 | | | Depth to |0.15 | |

 | | | saturated zone | | |

 | | | | | |

675A, 675B: | | | | | |

 Greenbush-----------|Somewhat limited | |Somewhat limited | |Somewhat limited |

 | Shrink-swell |0.50 | Shrink-swell |0.50 | Shrink-swell |0.50

 | | | Depth to |0.15 | |

 | | | saturated zone | | |

 | | | | | |

689B: | | | | | |

 Coloma--------------|Not limited | |Not limited | |Somewhat limited |

 | | | | | Slope |0.10

 | | | | | |

689D: | | | | | |

 Coloma--------------|Somewhat limited | |Somewhat limited | |Very limited |

 | Slope |0.68 | Slope |0.68 | Slope |1.00

 | | | | | |

705A: | | | | | |

 Buckhart------------|Somewhat limited | |Somewhat limited | |Somewhat limited |

 | Shrink-swell |0.50 | Depth to |0.99 | Shrink-swell |0.50

 | | | saturated zone | | |

 | | | Shrink-swell |0.50 | |

 | | | | | |

727A: | | | | | |

 Waukee--------------|Not limited | |Not limited | |Not limited |

 | | | | | |

741F: | | | | | |

 Oakville------------|Very limited | |Very limited | |Very limited |

 | Slope |1.00 | Slope |1.00 | Slope |1.00

 | | | | | |

763A, 763B: | | | | | |

 Joslin--------------|Not limited | |Not limited | |Not limited |

 | | | | | |

764A: | | | | | |

 Coyne---------------|Not limited | |Not limited | |Not limited |

 | | | | | |

764C: | | | | | |

 Coyne---------------|Somewhat limited | |Somewhat limited | |Somewhat limited |

 | Slope |0.12 | Slope |0.12 | Slope |0.94

 | | | | | |

774A: | | | | | |

 Saude---------------|Not limited | |Not limited | |Not limited |

 | | | | | |

800C: | | | | | |

 Psamments-----------|Somewhat limited | |Somewhat limited | |Very limited |

 | Slope |0.40 | Slope |0.40 | Slope |1.00

 | | | | | |

802B: | | | | | |

 Orthents------------|Somewhat limited | |Somewhat limited | |Somewhat limited |

 | Shrink-swell |0.50 | Shrink-swell |0.50 | Shrink-swell |0.50

 | | | | | Slope |0.10

 | | | | | |

864: | | | | | |

 Pits, quarries------|Not rated | |Not rated | |Not rated |

 | | | | | |
Rock Island County, Illinois 253

Table 14a.--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 | ___________________________________________________________________________________________________

 | | | | | |

865: | | | | | |

 Pits, gravel--------|Not rated | |Not rated | |Not rated |

 | | | | | |

898F3, 898G: | | | | | |

 Hickory-------------|Very limited | |Very limited | |Very limited |

 | Slope |1.00 | Slope |1.00 | Slope |1.00

 | Shrink-swell |0.50 | Shrink-swell |0.50 | Shrink-swell |0.50

 | | | | | |

 Sylvan--------------|Very limited | |Very limited | |Very limited |

 | Slope |1.00 | Slope |1.00 | Slope |1.00

 | Shrink-swell |0.50 | | | Shrink-swell |0.50

 | | | | | |

913D2: | | | | | |

 Marseilles----------|Somewhat limited | |Somewhat limited | |Very limited |

 | Slope |0.98 | Slope |0.98 | Slope |1.00

 | Shrink-swell |0.50 | Shrink-swell |0.50 | Shrink-swell |0.50

 | | | Depth to soft |0.42 | |

 | | | bedrock | | |

 | | | | | |

 Hickory-------------|Somewhat limited | |Somewhat limited | |Very limited |

 | Slope |0.98 | Slope |0.98 | Slope |1.00

 | Shrink-swell |0.50 | Shrink-swell |0.50 | Shrink-swell |0.50

 | | | | | |

913F: | | | | | |

 Marseilles----------|Very limited | |Very limited | |Very limited |

 | Slope |1.00 | Slope |1.00 | Slope |1.00

 | Shrink-swell |0.50 | Depth to soft |0.42 | Shrink-swell |0.50

 | | | bedrock | | |

 | | | | | |

 Hickory-------------|Very limited | |Very limited | |Very limited |

 | Slope |1.00 | Slope |1.00 | Slope |1.00

 | Shrink-swell |0.50 | Shrink-swell |0.50 | Shrink-swell |0.50

 | | | | | |

913G: | | | | | |

 Marseilles----------|Very limited | |Very limited | |Very limited |

 | Slope |1.00 | Slope |1.00 | Slope |1.00

 | Shrink-swell |0.50 | Shrink-swell |0.50 | Shrink-swell |0.50

 | | | Depth to soft |0.42 | |

 | | | bedrock | | |

 | | | | | |

 Hickory-------------|Very limited | |Very limited | |Very limited |

 | Slope |1.00 | Slope |1.00 | Slope |1.00

 | Shrink-swell |0.50 | Shrink-swell |0.50 | Shrink-swell |0.50

 | | | | | |

917C2: | | | | | |

 Oakville------------|Somewhat limited | |Somewhat limited | |Somewhat limited |

 | Slope |0.12 | Slope |0.12 | Slope |0.94

 | | | | | |

 Tell----------------|Somewhat limited | |Somewhat limited | |Somewhat limited |

 | Shrink-swell |0.50 | Slope |0.12 | Slope |0.94

 | Slope |0.12 | | | Shrink-swell |0.50

 | | | | | |

917D2: | | | | | |

 Oakville------------|Somewhat limited | |Somewhat limited | |Very limited |

 | Slope |0.98 | Slope |0.98 | Slope |1.00

 | | | | | |

 Tell----------------|Somewhat limited | |Somewhat limited | |Very limited |

 | Slope |0.98 | Slope |0.98 | Slope |1.00

 | Shrink-swell |0.50 | | | Shrink-swell |0.50

 | | | | | |
254 Soil Survey of

Table 14a.--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 | ___________________________________________________________________________________________________

 | | | | | |

943D2: | | | | | |

 Seaton--------------|Somewhat limited | |Somewhat limited | |Very limited |

 | Slope |0.98 | Slope |0.98 | Slope |1.00

 | | | | | |

 Timula--------------|Somewhat limited | |Somewhat limited | |Very limited |

 | Slope |0.98 | Slope |0.98 | Slope |1.00

 | | | | | |

943F2: | | | | | |

 Seaton--------------|Very limited | |Very limited | |Very limited |

 | Slope |1.00 | Slope |1.00 | Slope |1.00

 | | | | | |

 Timula--------------|Very limited | |Very limited | |Very limited |

 | Slope |1.00 | Slope |1.00 | Slope |1.00

 | | | | | |

944D2: | | | | | |

 Velma---------------|Somewhat limited | |Somewhat limited | |Very limited |

 | Slope |0.98 | Slope |0.98 | Slope |1.00

 | Shrink-swell |0.50 | Shrink-swell |0.50 | Shrink-swell |0.50

 | | | | | |

 Coatsburg-----------|Very limited | |Very limited | |Very limited |

 | Depth to |1.00 | Depth to |1.00 | Slope |1.00

 | saturated zone | | saturated zone | | Depth to |1.00

 | Shrink-swell |1.00 | Shrink-swell |1.00 | saturated zone |

 | Slope |0.98 | Slope |0.98 | Shrink-swell |1.00

 | | | | | |

946D3: | | | | | |

 Hickory-------------|Somewhat limited | |Somewhat limited | |Very limited |

 | Slope |0.98 | Slope |0.98 | Slope |1.00

 | Shrink-swell |0.50 | Shrink-swell |0.50 | Shrink-swell |0.50

 | | | | | |

 Atlas---------------|Very limited | |Very limited | |Very limited |

 | Shrink-swell |1.00 | Depth to |1.00 | Slope |1.00

 | Depth to |1.00 | saturated zone | | Shrink-swell |1.00

 | saturated zone | | Shrink-swell |1.00 | Depth to |1.00

 | Slope |0.98 | Slope |0.98 | saturated zone |

 | | | | | |

946F3: | | | | | |

 Hickory-------------|Very limited | |Very limited | |Very limited |

 | Slope |1.00 | Slope |1.00 | Slope |1.00

 | Shrink-swell |0.50 | Shrink-swell |0.50 | Shrink-swell |0.50

 | | | | | |

 Atlas---------------|Very limited | |Very limited | |Very limited |

 | Slope |1.00 | Slope |1.00 | Slope |1.00

 | Shrink-swell |1.00 | Depth to |1.00 | Shrink-swell |1.00

 | Depth to |1.00 | saturated zone | | Depth to |1.00

 | saturated zone | | Shrink-swell |1.00 | saturated zone |

 | | | | | |

959G: | | | | | |

 Strawn--------------|Very limited | |Very limited | |Very limited |

 | Slope |1.00 | Slope |1.00 | Slope |1.00

 | | | | | |

 Chute---------------|Very limited | |Very limited | |Very limited |

 | Slope |1.00 | Slope |1.00 | Slope |1.00

 | | | | | |

960D2, 960D3: | | | | | |

 Hickory-------------|Somewhat limited | |Somewhat limited | |Very limited |

 | Slope |0.98 | Slope |0.98 | Slope |1.00

 | Shrink-swell |0.50 | Shrink-swell |0.50 | Shrink-swell |0.50

 | | | | | |

 Sylvan--------------|Somewhat limited | |Somewhat limited | |Very limited |

 | Slope |0.98 | Slope |0.98 | Slope |1.00

 | Shrink-swell |0.50 | | | Shrink-swell |0.50

 | | | | | |
Rock Island County, Illinois 255

Table 14a.--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 | ___________________________________________________________________________________________________

 | | | | | |

960D2, 960D3: | | | | | |

 Fayette-------------|Somewhat limited | |Somewhat limited | |Very limited |

 | Slope |0.98 | Slope |0.98 | Slope |1.00

 | Shrink-swell |0.50 | Shrink-swell |0.50 | Shrink-swell |0.50

 | | | | | |

960F: | | | | | |

 Hickory-------------|Very limited | |Very limited | |Very limited |

 | Slope |1.00 | Slope |1.00 | Slope |1.00

 | Shrink-swell |0.50 | Shrink-swell |0.50 | Shrink-swell |0.50

 | | | | | |

 Sylvan--------------|Very limited | |Very limited | |Very limited |

 | Slope |1.00 | Slope |1.00 | Slope |1.00

 | Shrink-swell |0.50 | | | Shrink-swell |0.50

 | | | | | |

 Fayette-------------|Very limited | |Very limited | |Very limited |

 | Slope |1.00 | Slope |1.00 | Slope |1.00

 | Shrink-swell |0.50 | Shrink-swell |0.50 | Shrink-swell |0.50

 | | | | | |

961A: | | | | | |

 Burkhardt-----------|Not limited | |Not limited | |Not limited |

 | | | | | |

 Saude---------------|Not limited | |Not limited | |Not limited |

 | | | | | |

962F: | | | | | |

 Sylvan--------------|Very limited | |Very limited | |Very limited |

 | Slope |1.00 | Slope |1.00 | Slope |1.00

 | Shrink-swell |0.50 | | | Shrink-swell |0.50

 | | | | | |

 Bold----------------|Very limited | |Very limited | |Very limited |

 | Slope |1.00 | Slope |1.00 | Slope |1.00

 | | | | | |

1076A: | | | | | |

 Otter---------------|Very limited | |Very limited | |Very limited |

 | Ponding |1.00 | Ponding |1.00 | Ponding |1.00

 | 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 |

 | | | | | |

1082A: | | | | | |

 Millington----------|Very limited | |Very limited | |Very limited |

 | Ponding |1.00 | Ponding |1.00 | Ponding |1.00

 | 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

 | | | | | |

1107A: | | | | | |

 Sawmill-------------|Very limited | |Very limited | |Very limited |

 | Ponding |1.00 | Ponding |1.00 | Ponding |1.00

 | 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

 | | | | | |

1334A: | | | | | |

 Birds---------------|Very limited | |Very limited | |Very limited |

 | Ponding |1.00 | Ponding |1.00 | Ponding |1.00

 | 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

 | | | | | |
256 Soil Survey of

Table 14a.--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 | ___________________________________________________________________________________________________

 | | | | | |

1400A: | | | | | |

 Calco---------------|Very limited | |Very limited | |Very limited |

 | Ponding |1.00 | Ponding |1.00 | Ponding |1.00

 | 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

 | | | | | |

1654A: | | | | | |

 Moline--------------|Very limited | |Very limited | |Very limited |

 | Ponding |1.00 | Ponding |1.00 | Ponding |1.00

 | 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 |1.00 | Shrink-swell |1.00 | Shrink-swell |1.00

 | | | | | |

3074A: | | | | | |

 Radford-------------|Very limited | |Very limited | |Very limited |

 | Flooding |1.00 | Flooding |1.00 | Flooding |1.00

 | Depth to |0.99 | Depth to |1.00 | Depth to |0.99

 | saturated zone | | saturated zone | | saturated zone |

 | | | Shrink-swell |0.50 | |

 | | | | | |

3076A: | | | | | |

 Otter---------------|Very limited | |Very limited | |Very limited |

 | Ponding |1.00 | Ponding |1.00 | Ponding |1.00

 | 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 |

 | | | | | |

3082A: | | | | | |

 Millington----------|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

 | | | | | |

3083A: | | | | | |

 Wabash--------------|Very limited | |Very limited | |Very limited |

 | Ponding |1.00 | Ponding |1.00 | Ponding |1.00

 | 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 |1.00 | Shrink-swell |1.00 | Shrink-swell |1.00

 | | | | | |

3107A: | | | | | |

 Sawmill-------------|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

 | | | | | |

3239A: | | | | | |

 Dorchester----------|Very limited | |Very limited | |Very limited |

 | Flooding |1.00 | Flooding |1.00 | Flooding |1.00

 | | | Shrink-swell |0.50 | |

 | | | Depth to |0.16 | |

 | | | saturated zone | | |

 | | | | | |
Rock Island County, Illinois 257

Table 14a.--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 | ___________________________________________________________________________________________________

 | | | | | |

3400A: | | | | | |

 Calco---------------|Very limited | |Very limited | |Very limited |

 | Ponding |1.00 | Ponding |1.00 | Ponding |1.00

 | 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

 | | | | | |

3415A: | | | | | |

 Orion---------------|Very limited | |Very limited | |Very limited |

 | Flooding |1.00 | Flooding |1.00 | Flooding |1.00

 | Depth to |0.99 | Depth to |1.00 | Depth to |0.99

 | saturated zone | | saturated zone | | saturated zone |

 | | | | | |

3428A: | | | | | |

 Coffeen-------------|Very limited | |Very limited | |Very limited |

 | Flooding |1.00 | Flooding |1.00 | Flooding |1.00

 | Depth to |0.99 | Depth to |1.00 | Depth to |0.99

 | saturated zone | | saturated zone | | saturated zone |

 | | | | | |

3451A: | | | | | |

 Lawson--------------|Very limited | |Very limited | |Very limited |

 | Flooding |1.00 | Flooding |1.00 | Flooding |1.00

 | Depth to |0.99 | Depth to |1.00 | Depth to |0.99

 | saturated zone | | saturated zone | | saturated zone |

 | | | Shrink-swell |0.50 | |

 | | | | | |

3646L: | | | | | |

 Fluvaquents---------|Very limited | |Very limited | |Very limited |

 | Ponding |1.00 | Ponding |1.00 | Ponding |1.00

 | 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

 | | | | | |

7076A: | | | | | |

 Otter---------------|Very limited | |Very limited | |Very limited |

 | Ponding |1.00 | Ponding |1.00 | Ponding |1.00

 | 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 |

 | | | | | |

7083A: | | | | | |

 Wabash--------------|Very limited | |Very limited | |Very limited |

 | Ponding |1.00 | Ponding |1.00 | Ponding |1.00

 | 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 |1.00 | Shrink-swell |1.00 | Shrink-swell |1.00

 | | | | | |

7107A: | | | | | |

 Sawmill-------------|Very limited | |Very limited | |Very limited |

 | Ponding |1.00 | Ponding |1.00 | Ponding |1.00

 | 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

 | | | | | |
258 Soil Survey of

Table 14a.--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 | ___________________________________________________________________________________________________

 | | | | | |

7239A: | | | | | |

 Dorchester----------|Very limited | |Very limited | |Very limited |

 | Flooding |1.00 | Flooding |1.00 | Flooding |1.00

 | | | Shrink-swell |0.50 | |

 | | | Depth to |0.16 | |

 | | | saturated zone | | |

 | | | | | |

7304A: | | | | | |

 Landes--------------|Very limited | |Very limited | |Very limited |

 | Flooding |1.00 | Flooding |1.00 | Flooding |1.00

 | | | Depth to |0.15 | |

 | | | saturated zone | | |

 | | | | | |

7415A: | | | | | |

 Orion---------------|Very limited | |Very limited | |Very limited |

 | Flooding |1.00 | Flooding |1.00 | Flooding |1.00

 | Depth to |0.44 | Depth to |1.00 | Depth to |0.44

 | saturated zone | | saturated zone | | saturated zone |

 | | | | | |

7428A: | | | | | |

 Coffeen-------------|Very limited | |Very limited | |Very limited |

 | Flooding |1.00 | Flooding |1.00 | Flooding |1.00

 | Depth to |0.99 | Depth to |1.00 | Depth to |0.99

 | saturated zone | | saturated zone | | saturated zone |

 | | | | | |

7451A: | | | | | |

 Lawson--------------|Very limited | |Very limited | |Very limited |

 | Flooding |1.00 | Flooding |1.00 | Flooding |1.00

 | Depth to |0.99 | Depth to |1.00 | Depth to |0.99

 | saturated zone | | saturated zone | | saturated zone |

 | | | Shrink-swell |0.50 | |

 | | | | | |

7654A: | | | | | |

 Moline--------------|Very limited | |Very limited | |Very limited |

 | Ponding |1.00 | Ponding |1.00 | Ponding |1.00

 | 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 |1.00 | Shrink-swell |1.00 | Shrink-swell |1.00

 | | | | | |

8107+: | | | | | |

 Sawmill-------------|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

 | | | | | |

8302A: | | | | | |

 Ambraw--------------|Very limited | |Very limited | |Very limited |

 | Ponding |1.00 | Ponding |1.00 | Ponding |1.00

 | 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

 | | | | | |

8400A: | | | | | |

 Calco---------------|Very limited | |Very limited | |Very limited |

 | Ponding |1.00 | Ponding |1.00 | Ponding |1.00

 | 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

 | | | | | |
Rock Island County, Illinois 259

Table 14a.--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 | ___________________________________________________________________________________________________

 | | | | | |

8404A: | | | | | |

 Titus---------------|Very limited | |Very limited | |Very limited |

 | Ponding |1.00 | Ponding |1.00 | Ponding |1.00

 | 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 |1.00 | Shrink-swell |1.00 | Shrink-swell |1.00

 | | | | | | ___________________________________________________________________________________________________
260 Soil Survey of

Table 14b.--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 potential limitation. 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 | ___________________________________________________________________________________________________

 | | | | | |

8D2, 8D3: | | | | | |

 Hickory-------------|Very limited | |Somewhat limited | |Somewhat limited |

 | Low strength |1.00 | Slope |0.98 | Slope |0.96

 | Slope |0.98 | | | |

 | Shrink-swell |0.50 | | | |

 | Frost action |0.50 | | | |

 | | | | | |

8F, 8F3: | | | | | |

 Hickory-------------|Very limited | |Very limited | |Very limited |

 | Slope |1.00 | Slope |1.00 | Slope |1.00

 | Low strength |1.00 | | | |

 | Shrink-swell |0.50 | | | |

 | Frost action |0.50 | | | |

 | | | | | |

19C3: | | | | | |

 Sylvan--------------|Very limited | |Somewhat limited | |Not limited |

 | Frost action |1.00 | Slope |0.12 | |

 | Low strength |1.00 | | | |

 | Shrink-swell |0.50 | | | |

 | Slope |0.12 | | | |

 | | | | | |

19D, 19D3: | | | | | |

 Sylvan--------------|Very limited | |Somewhat limited | |Somewhat limited |

 | Frost action |1.00 | Slope |0.98 | Slope |0.96

 | Low strength |1.00 | | | |

 | Slope |0.98 | | | |

 | Shrink-swell |0.50 | | | |

 | | | | | |

19F, 19F3: | | | | | |

 Sylvan--------------|Very limited | |Very limited | |Very limited |

 | Slope |1.00 | Slope |1.00 | Slope |1.00

 | Frost action |1.00 | | | |

 | Low strength |1.00 | | | |

 | Shrink-swell |0.50 | | | |

 | | | | | |

45A: | | | | | |

 Denny---------------|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 |

 | Frost action |1.00 | | | |

 | Low strength |1.00 | | | |

 | Shrink-swell |1.00 | | | |

 | | | | | |

51A: | | | | | |

 Muscatune-----------|Very limited | |Very limited | |Somewhat limited |

 | Frost action |1.00 | Depth to |1.00 | Depth to |0.75

 | Low strength |1.00 | saturated zone | | saturated zone |

 | Depth to |0.75 | | | |

 | saturated zone | | | | |

 | Shrink-swell |0.50 | | | |

 | | | | | |
Rock Island County, Illinois 261

Table 14b.--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 | ___________________________________________________________________________________________________

 | | | | | |

61A: | | | | | |

 Atterberry----------|Very limited | |Very limited | |Somewhat limited |

 | Frost action |1.00 | Depth to |1.00 | Depth to |0.75

 | Low strength |1.00 | saturated zone | | saturated zone |

 | Depth to |0.75 | | | |

 | saturated zone | | | | |

 | Shrink-swell |0.50 | | | |

 | | | | | |

68A: | | | | | |

 Sable---------------|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 |

 | Frost action |1.00 | | | |

 | Low strength |1.00 | | | |

 | Shrink-swell |0.50 | | | |

 | | | | | |

86B: | | | | | |

 Osco----------------|Very limited | |Somewhat limited | |Not limited |

 | Frost action |1.00 | Depth to |0.15 | |

 | Low strength |1.00 | saturated zone | | |

 | Shrink-swell |0.50 | | | |

 | | | | | |

86C2: | | | | | |

 Osco----------------|Very limited | |Somewhat limited | |Not limited |

 | Frost action |1.00 | Depth to |0.15 | |

 | Low strength |1.00 | saturated zone | | |

 | Shrink-swell |0.50 | Slope |0.12 | |

 | Slope |0.12 | | | |

 | | | | | |

87A: | | | | | |

 Dickinson-----------|Somewhat limited | |Very limited | |Not limited |

 | Frost action |0.50 | Cutbanks cave |1.00 | |

 | | | | | |

87C2: | | | | | |

 Dickinson-----------|Somewhat limited | |Very limited | |Not limited |

 | Frost action |0.50 | Cutbanks cave |1.00 | |

 | Slope |0.12 | Slope |0.12 | |

 | | | | | |

88A: | | | | | |

 Sparta--------------|Not limited | |Very limited | |Somewhat limited |

 | | | Cutbanks cave |1.00 | Droughty |0.08

 | | | | | |

172A: | | | | | |

 Hoopeston-----------|Very limited | |Very limited | |Somewhat limited |

 | Frost action |1.00 | Cutbanks cave |1.00 | Depth to |0.48

 | Depth to |0.48 | Depth to |1.00 | saturated zone |

 | saturated zone | | saturated zone | | |

 | | | | | |

212B: | | | | | |

 Thebes--------------|Very limited | |Very limited | |Not limited |

 | Frost action |1.00 | Cutbanks cave |1.00 | |

 | Low strength |1.00 | | | |

 | Shrink-swell |0.50 | | | |

 | | | | | |

250D: | | | | | |

 Velma---------------|Very limited | |Somewhat limited | |Somewhat limited |

 | Low strength |1.00 | Slope |0.98 | Slope |0.96

 | Slope |0.98 | | | |

 | Shrink-swell |0.50 | | | |

 | Frost action |0.50 | | | |

 | | | | | |
262 Soil Survey of

Table 14b.--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 | ___________________________________________________________________________________________________

 | | | | | |

261A: | | | | | |

 Niota---------------|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 |

 | Frost action |1.00 | Too clayey |0.50 | |

 | Low strength |1.00 | | | |

 | Shrink-swell |1.00 | | | |

 | | | | | |

274B, 274B2: | | | | | |

 Seaton--------------|Very limited | |Not limited | |Not limited |

 | Frost action |1.00 | | | |

 | Low strength |1.00 | | | |

 | | | | | |

274C2: | | | | | |

 Seaton--------------|Very limited | |Somewhat limited | |Not limited |

 | Frost action |1.00 | Slope |0.12 | |

 | Low strength |1.00 | | | |

 | Slope |0.12 | | | |

 | | | | | |

274D2: | | | | | |

 Seaton--------------|Very limited | |Somewhat limited | |Somewhat limited |

 | Frost action |1.00 | Slope |0.98 | Slope |0.96

 | Low strength |1.00 | | | |

 | Slope |0.98 | | | |

 | | | | | |

275A: | | | | | |

 Joy-----------------|Very limited | |Very limited | |Somewhat limited |

 | Frost action |1.00 | Depth to |1.00 | Depth to |0.75

 | Low strength |1.00 | saturated zone | | saturated zone |

 | Depth to |0.75 | | | |

 | saturated zone | | | | |

 | | | | | |

278A: | | | | | |

 Stronghurst---------|Very limited | |Very limited | |Somewhat limited |

 | Frost action |1.00 | Depth to |1.00 | Depth to |0.75

 | Low strength |1.00 | saturated zone | | saturated zone |

 | Depth to |0.75 | | | |

 | saturated zone | | | | |

 | Shrink-swell |0.50 | | | |

 | | | | | |

279A, 279B: | | | | | |

 Rozetta-------------|Very limited | |Somewhat limited | |Not limited |

 | Frost action |1.00 | Depth to |0.15 | |

 | Low strength |1.00 | saturated zone | | |

 | Shrink-swell |0.50 | | | |

 | | | | | |

280B, 280B2: | | | | | |

 Fayette-------------|Very limited | |Not limited | |Not limited |

 | Frost action |1.00 | | | |

 | Low strength |1.00 | | | |

 | Shrink-swell |0.50 | | | |

 | | | | | |

280C2, 280C3: | | | | | |

 Fayette-------------|Very limited | |Somewhat limited | |Not limited |

 | Frost action |1.00 | Slope |0.12 | |

 | Low strength |1.00 | | | |

 | Shrink-swell |0.50 | | | |

 | Slope |0.12 | | | |

 | | | | | |
Rock Island County, Illinois 263

Table 14b.--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 | ___________________________________________________________________________________________________

 | | | | | |

317A: | | | | | |

 Millsdale-----------|Very limited | |Very limited | |Very limited |

 | Ponding |1.00 | Depth to bedrock |1.00 | Ponding |1.00

 | Depth to |1.00 | Ponding |1.00 | Depth to |1.00

 | saturated zone | | Depth to |1.00 | saturated zone |

 | Frost action |1.00 | saturated zone | | Depth to bedrock |0.42

 | Low strength |1.00 | Too clayey |0.50 | |

 | Shrink-swell |1.00 | | | |

 | | | | | |

430A, 430B: | | | | | |

 Raddle--------------|Very limited | |Not limited | |Not limited |

 | Frost action |1.00 | | | |

 | Low strength |0.50 | | | |

 | | | | | |

525A: | | | | | |

 Joslin--------------|Somewhat limited | |Somewhat limited | |Not limited |

 | Shrink-swell |0.50 | Depth to bedrock |0.42 | |

 | Frost action |0.50 | | | |

 | | | | | |

567C2: | | | | | |

 Elkhart-------------|Very limited | |Somewhat limited | |Not limited |

 | Frost action |1.00 | Depth to |0.16 | |

 | Low strength |1.00 | saturated zone | | |

 | Shrink-swell |0.50 | Slope |0.12 | |

 | Slope |0.12 | | | |

 | | | | | |

567D2: | | | | | |

 Elkhart-------------|Very limited | |Somewhat limited | |Somewhat limited |

 | Frost action |1.00 | Slope |0.98 | Slope |0.96

 | Low strength |1.00 | Depth to |0.16 | |

 | Slope |0.98 | saturated zone | | |

 | Shrink-swell |0.50 | | | |

 | | | | | |

570B: | | | | | |

 Martinsville--------|Somewhat limited | |Not limited | |Not limited |

 | Shrink-swell |0.50 | | | |

 | Frost action |0.50 | | | |

 | Low strength |0.05 | | | |

 | | | | | |

570C3: | | | | | |

 Martinsville--------|Very limited | |Somewhat limited | |Not limited |

 | Low strength |1.00 | Slope |0.12 | |

 | Shrink-swell |0.50 | | | |

 | Frost action |0.50 | | | |

 | Slope |0.12 | | | |

 | | | | | |

570D3: | | | | | |

 Martinsville--------|Very limited | |Somewhat limited | |Somewhat limited |

 | Low strength |1.00 | Slope |0.98 | Slope |0.96

 | Slope |0.98 | | | |

 | Shrink-swell |0.50 | | | |

 | Frost action |0.50 | | | |

 | | | | | |

647A: | | | | | |

 Lawler--------------|Very limited | |Very limited | |Somewhat limited |

 | Frost action |1.00 | Depth to |1.00 | Depth to |0.75

 | Depth to |0.75 | saturated zone | | saturated zone |

 | saturated zone | | Cutbanks cave |1.00 | |

 | Low strength |0.05 | | | |

 | | | | | |
264 Soil Survey of

Table 14b.--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 | ___________________________________________________________________________________________________

 | | | | | |

671A, 671B: | | | | | |

 Biggsville----------|Very limited | |Somewhat limited | |Not limited |

 | Frost action |1.00 | Depth to |0.15 | |

 | Low strength |1.00 | saturated zone | | |

 | | | | | |

675A, 675B: | | | | | |

 Greenbush-----------|Very limited | |Somewhat limited | |Not limited |

 | Frost action |1.00 | Depth to |0.15 | |

 | Low strength |1.00 | saturated zone | | |

 | Shrink-swell |0.50 | | | |

 | | | | | |

689B: | | | | | |

 Coloma--------------|Not limited | |Very limited | |Somewhat limited |

 | | | Cutbanks cave |1.00 | Too sandy |0.50

 | | | | | Droughty |0.49

 | | | | | |

689D: | | | | | |

 Coloma--------------|Somewhat limited | |Very limited | |Somewhat limited |

 | Slope |0.68 | Cutbanks cave |1.00 | Droughty |0.58

 | | | Slope |0.68 | Too sandy |0.50

 | | | | | Slope |0.37

 | | | | | |

705A: | | | | | |

 Buckhart------------|Very limited | |Somewhat limited | |Not limited |

 | Frost action |1.00 | Depth to |0.99 | |

 | Low strength |1.00 | saturated zone | | |

 | Shrink-swell |0.50 | | | |

 | | | | | |

727A: | | | | | |

 Waukee--------------|Somewhat limited | |Very limited | |Not limited |

 | Frost action |0.50 | Cutbanks cave |1.00 | |

 | | | | | |

741F: | | | | | |

 Oakville------------|Very limited | |Very limited | |Very limited |

 | Slope |1.00 | Cutbanks cave |1.00 | Slope |1.00

 | | | Slope |1.00 | Droughty |0.62

 | | | | | |

763A, 763B: | | | | | |

 Joslin--------------|Very limited | |Somewhat limited | |Not limited |

 | Low strength |1.00 | Too clayey |0.50 | |

 | Frost action |0.50 | | | |

 | | | | | |

764A: | | | | | |

 Coyne---------------|Somewhat limited | |Not limited | |Not limited |

 | Frost action |0.50 | | | |

 | | | | | |

764C: | | | | | |

 Coyne---------------|Somewhat limited | |Very limited | |Not limited |

 | Frost action |0.50 | Cutbanks cave |1.00 | |

 | Slope |0.12 | Slope |0.12 | |

 | | | | | |

774A: | | | | | |

 Saude---------------|Somewhat limited | |Very limited | |Not limited |

 | Frost action |0.50 | Cutbanks cave |1.00 | |

 | | | | | |

800C: | | | | | |

 Psamments-----------|Somewhat limited | |Very limited | |Somewhat limited |

 | Slope |0.40 | Cutbanks cave |1.00 | Droughty |0.69

 | | | Slope |0.40 | Too sandy |0.50

 | | | | | Slope |0.09

 | | | | | |
Rock Island County, Illinois 265

Table 14b.--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 | ___________________________________________________________________________________________________

 | | | | | |

802B: | | | | | |

 Orthents------------|Very limited | |Not limited | |Not limited |

 | Low strength |1.00 | | | |

 | Shrink-swell |0.50 | | | |

 | Frost action |0.50 | | | |

 | | | | | |

864: | | | | | |

 Pits, quarries------|Not rated | |Not rated | |Not rated |

 | | | | | |

865: | | | | | |

 Pits, gravel--------|Not rated | |Not rated | |Not rated |

 | | | | | |

898F3, 898G: | | | | | |

 Hickory-------------|Very limited | |Very limited | |Very limited |

 | Slope |1.00 | Slope |1.00 | Slope |1.00

 | Low strength |1.00 | | | |

 | Shrink-swell |0.50 | | | |

 | Frost action |0.50 | | | |

 | | | | | |

 Sylvan--------------|Very limited | |Very limited | |Very limited |

 | Slope |1.00 | Slope |1.00 | Slope |1.00

 | Frost action |1.00 | | | |

 | Low strength |1.00 | | | |

 | Shrink-swell |0.50 | | | |

 | | | | | |

913D2: | | | | | |

 Marseilles----------|Very limited | |Somewhat limited | |Somewhat limited |

 | Frost action |1.00 | Slope |0.98 | Slope |0.96

 | Low strength |1.00 | Depth to soft |0.42 | Depth to bedrock |0.42

 | Slope |0.98 | bedrock | | |

 | Shrink-swell |0.50 | | | |

 | | | | | |

 Hickory-------------|Very limited | |Somewhat limited | |Somewhat limited |

 | Low strength |1.00 | Slope |0.98 | Slope |0.96

 | Slope |0.98 | | | |

 | Shrink-swell |0.50 | | | |

 | Frost action |0.50 | | | |

 | | | | | |

913F, 913G: | | | | | |

 Marseilles----------|Very limited | |Very limited | |Very limited |

 | Slope |1.00 | Slope |1.00 | Slope |1.00

 | Frost action |1.00 | Depth to soft |0.42 | Depth to bedrock |0.42

 | Low strength |1.00 | bedrock | | |

 | Shrink-swell |0.50 | | | |

 | | | | | |

 Hickory-------------|Very limited | |Very limited | |Very limited |

 | Slope |1.00 | Slope |1.00 | Slope |1.00

 | Low strength |1.00 | | | |

 | Shrink-swell |0.50 | | | |

 | Frost action |0.50 | | | |

 | | | | | |

917C2: | | | | | |

 Oakville------------|Somewhat limited | |Very limited | |Somewhat limited |

 | Slope |0.12 | Cutbanks cave |1.00 | Droughty |0.34

 | | | Slope |0.12 | |

 | | | | | |

 Tell----------------|Very limited | |Very limited | |Not limited |

 | Frost action |1.00 | Cutbanks cave |1.00 | |

 | Low strength |1.00 | Slope |0.12 | |

 | Shrink-swell |0.50 | | | |

 | Slope |0.12 | | | |

 | | | | | |
266 Soil Survey of

Table 14b.--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 | ___________________________________________________________________________________________________

 | | | | | |

917D2: | | | | | |

 Oakville------------|Somewhat limited | |Very limited | |Somewhat limited |

 | Slope |0.98 | Cutbanks cave |1.00 | Slope |0.96

 | | | Slope |0.98 | Droughty |0.40

 | | | | | |

 Tell----------------|Very limited | |Very limited | |Somewhat limited |

 | Frost action |1.00 | Cutbanks cave |1.00 | Slope |0.96

 | Low strength |1.00 | Slope |0.98 | |

 | Slope |0.98 | | | |

 | Shrink-swell |0.50 | | | |

 | | | | | |

943D2: | | | | | |

 Seaton--------------|Very limited | |Somewhat limited | |Somewhat limited |

 | Frost action |1.00 | Slope |0.98 | Slope |0.96

 | Low strength |1.00 | | | |

 | Slope |0.98 | | | |

 | | | | | |

 Timula--------------|Very limited | |Somewhat limited | |Somewhat limited |

 | Frost action |1.00 | Slope |0.98 | Slope |0.96

 | Slope |0.98 | | | |

 | | | | | |

943F2: | | | | | |

 Seaton--------------|Very limited | |Very limited | |Very limited |

 | Slope |1.00 | Slope |1.00 | Slope |1.00

 | Frost action |1.00 | | | |

 | Low strength |1.00 | | | |

 | | | | | |

 Timula--------------|Very limited | |Very limited | |Very limited |

 | Slope |1.00 | Slope |1.00 | Slope |1.00

 | Frost action |1.00 | | | |

 | | | | | |

944D2: | | | | | |

 Velma---------------|Very limited | |Somewhat limited | |Somewhat limited |

 | Low strength |1.00 | Slope |0.98 | Slope |0.96

 | Slope |0.98 | | | |

 | Shrink-swell |0.50 | | | |

 | Frost action |0.50 | | | |

 | | | | | |

 Coatsburg-----------|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 | Slope |0.98 | Slope |0.96

 | Low strength |1.00 | Too clayey |0.50 | |

 | Shrink-swell |1.00 | | | |

 | Slope |0.98 | | | |

 | | | | | |

946D3: | | | | | |

 Hickory-------------|Very limited | |Somewhat limited | |Somewhat limited |

 | Low strength |1.00 | Slope |0.98 | Slope |0.96

 | Slope |0.98 | | | |

 | Shrink-swell |0.50 | | | |

 | Frost action |0.50 | | | |

 | | | | | |

 Atlas---------------|Very limited | |Very limited | |Somewhat limited |

 | Frost action |1.00 | Depth to |1.00 | Slope |0.96

 | Low strength |1.00 | saturated zone | | Depth to |0.94

 | Shrink-swell |1.00 | Slope |0.98 | saturated zone |

 | Slope |0.98 | Too clayey |0.50 | |

 | Depth to |0.94 | | | |

 | saturated zone | | | | |

 | | | | | |
Rock Island County, Illinois 267

Table 14b.--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 | ___________________________________________________________________________________________________

 | | | | | |

946F3: | | | | | |

 Hickory-------------|Very limited | |Very limited | |Very limited |

 | Slope |1.00 | Slope |1.00 | Slope |1.00

 | Low strength |1.00 | | | |

 | Shrink-swell |0.50 | | | |

 | Frost action |0.50 | | | |

 | | | | | |

 Atlas---------------|Very limited | |Very limited | |Very limited |

 | Slope |1.00 | Slope |1.00 | Slope |1.00

 | Frost action |1.00 | Depth to |1.00 | Depth to |0.94

 | Low strength |1.00 | saturated zone | | saturated zone |

 | Shrink-swell |1.00 | Too clayey |0.50 | |

 | Depth to |0.94 | | | |

 | saturated zone | | | | |

 | | | | | |

959G: | | | | | |

 Strawn--------------|Very limited | |Very limited | |Very limited |

 | Slope |1.00 | Slope |1.00 | Slope |1.00

 | Frost action |0.50 | | | |

 | Low strength |0.05 | | | |

 | | | | | |

 Chute---------------|Very limited | |Very limited | |Very limited |

 | Slope |1.00 | Slope |1.00 | Slope |1.00

 | | | Cutbanks cave |1.00 | Droughty |0.29

 | | | | | |

960D2, 960D3: | | | | | |

 Hickory-------------|Very limited | |Somewhat limited | |Somewhat limited |

 | Low strength |1.00 | Slope |0.98 | Slope |0.96

 | Slope |0.98 | | | |

 | Shrink-swell |0.50 | | | |

 | Frost action |0.50 | | | |

 | | | | | |

 Sylvan--------------|Very limited | |Somewhat limited | |Somewhat limited |

 | Frost action |1.00 | Slope |0.98 | Slope |0.96

 | Low strength |1.00 | | | |

 | Slope |0.98 | | | |

 | Shrink-swell |0.50 | | | |

 | | | | | |

 Fayette-------------|Very limited | |Somewhat limited | |Somewhat limited |

 | Frost action |1.00 | Slope |0.98 | Slope |0.96

 | Low strength |1.00 | | | |

 | Slope |0.98 | | | |

 | Shrink-swell |0.50 | | | |

 | | | | | |

960F: | | | | | |

 Hickory-------------|Very limited | |Very limited | |Very limited |

 | Slope |1.00 | Slope |1.00 | Slope |1.00

 | Low strength |1.00 | | | |

 | Shrink-swell |0.50 | | | |

 | Frost action |0.50 | | | |

 | | | | | |

 Sylvan--------------|Very limited | |Very limited | |Very limited |

 | Slope |1.00 | Slope |1.00 | Slope |1.00

 | Frost action |1.00 | | | |

 | Low strength |1.00 | | | |

 | Shrink-swell |0.50 | | | |

 | | | | | |

 Fayette-------------|Very limited | |Very limited | |Very limited |

 | Slope |1.00 | Slope |1.00 | Slope |1.00

 | Frost action |1.00 | | | |

 | Low strength |1.00 | | | |

 | Shrink-swell |0.50 | | | |

 | | | | | |
268 Soil Survey of

Table 14b.--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 | ___________________________________________________________________________________________________

 | | | | | |

961A: | | | | | |

 Burkhardt-----------|Not limited | |Very limited | |Somewhat limited |

 | | | Cutbanks cave |1.00 | Droughty |0.01

 | | | | | |

 Saude---------------|Somewhat limited | |Very limited | |Not limited |

 | Frost action |0.50 | Cutbanks cave |1.00 | |

 | | | | | |

962F: | | | | | |

 Sylvan--------------|Very limited | |Very limited | |Very limited |

 | Slope |1.00 | Slope |1.00 | Slope |1.00

 | Frost action |1.00 | | | |

 | Low strength |1.00 | | | |

 | Shrink-swell |0.50 | | | |

 | | | | | |

 Bold----------------|Very limited | |Very limited | |Very limited |

 | Slope |1.00 | Slope |1.00 | Slope |1.00

 | Frost action |1.00 | | | |

 | Low strength |0.50 | | | |

 | | | | | |

1076A: | | | | | |

 Otter---------------|Very limited | |Very limited | |Very limited |

 | Ponding |1.00 | Ponding |1.00 | Ponding |1.00

 | 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 | | | |

 | Low strength |1.00 | | | |

 | | | | | |

1082A: | | | | | |

 Millington----------|Very limited | |Very limited | |Very limited |

 | Ponding |1.00 | Ponding |1.00 | Ponding |1.00

 | 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 | | | |

 | Low strength |1.00 | | | |

 | | | | | |

1107A: | | | | | |

 Sawmill-------------|Very limited | |Very limited | |Very limited |

 | Ponding |1.00 | Ponding |1.00 | Ponding |1.00

 | 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 | | | |

 | Low strength |1.00 | | | |

 | | | | | |

1334A: | | | | | |

 Birds---------------|Very limited | |Very limited | |Very limited |

 | Ponding |1.00 | Ponding |1.00 | Ponding |1.00

 | 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 | | | |

 | Low strength |1.00 | | | |

 | | | | | |

1400A: | | | | | |

 Calco---------------|Very limited | |Very limited | |Very limited |

 | Ponding |1.00 | Ponding |1.00 | Ponding |1.00

 | 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 | | | |

 | Low strength |1.00 | | | |

 | | | | | |
Rock Island County, Illinois 269

Table 14b.--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 | ___________________________________________________________________________________________________

 | | | | | |

1654A: | | | | | |

 Moline--------------|Very limited | |Very limited | |Very limited |

 | Shrink-swell |1.00 | Ponding |1.00 | Ponding |1.00

 | Ponding |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 | Too clayey |0.50 | Too clayey |1.00

 | Flooding |1.00 | | | |

 | | | | | |

3074A: | | | | | |

 Radford-------------|Very limited | |Very limited | |Very limited |

 | Frost action |1.00 | Depth to |1.00 | Flooding |1.00

 | Flooding |1.00 | saturated zone | | Depth to |0.75

 | Low strength |1.00 | Flooding |0.80 | saturated zone |

 | Depth to |0.75 | | | |

 | saturated zone | | | | |

 | | | | | |

3076A: | | | | | |

 Otter---------------|Very limited | |Very limited | |Very limited |

 | Ponding |1.00 | Ponding |1.00 | Ponding |1.00

 | 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 | | | |

 | Low strength |1.00 | | | |

 | | | | | |

3082A: | | | | | |

 Millington----------|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 | | | |

 | Low strength |1.00 | | | |

 | Shrink-swell |0.50 | | | |

 | | | | | |

3083A: | | | | | |

 Wabash--------------|Very limited | |Very limited | |Very limited |

 | Shrink-swell |1.00 | Ponding |1.00 | Ponding |1.00

 | Ponding |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 | Too clayey |0.50 | Too clayey |1.00

 | Flooding |1.00 | | | |

 | | | | | |

3107A: | | | | | |

 Sawmill-------------|Very limited | |Very limited | |Very limited |

 | Frost action |1.00 | Depth to |1.00 | Flooding |1.00

 | Flooding |1.00 | saturated zone | | Depth to |1.00

 | Low strength |1.00 | Flooding |0.80 | saturated zone |

 | Depth to |1.00 | | | |

 | saturated zone | | | | |

 | Shrink-swell |0.50 | | | |

 | | | | | |

3239A: | | | | | |

 Dorchester----------|Very limited | |Somewhat limited | |Very limited |

 | Frost action |1.00 | Flooding |0.80 | Flooding |1.00

 | Flooding |1.00 | Depth to |0.16 | |

 | Low strength |0.05 | saturated zone | | |

 | | | | | |
270 Soil Survey of

Table 14b.--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 | ___________________________________________________________________________________________________

 | | | | | |

3400A: | | | | | |

 Calco---------------|Very limited | |Very limited | |Very limited |

 | Ponding |1.00 | Ponding |1.00 | Ponding |1.00

 | 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 | | | |

 | Low strength |1.00 | | | |

 | | | | | |

3415A: | | | | | |

 Orion---------------|Very limited | |Very limited | |Very limited |

 | Frost action |1.00 | Depth to |1.00 | Flooding |1.00

 | Flooding |1.00 | saturated zone | | Depth to |0.75

 | Low strength |1.00 | Cutbanks cave |1.00 | saturated zone |

 | Depth to |0.75 | Flooding |0.80 | |

 | saturated zone | | | | |

 | | | | | |

3428A: | | | | | |

 Coffeen-------------|Very limited | |Very limited | |Very limited |

 | Frost action |1.00 | Depth to |1.00 | Flooding |1.00

 | Flooding |1.00 | saturated zone | | Depth to |0.75

 | Depth to |0.75 | Flooding |0.80 | saturated zone |

 | saturated zone | | | | |

 | | | | | |

3451A: | | | | | |

 Lawson--------------|Very limited | |Very limited | |Very limited |

 | Frost action |1.00 | Depth to |1.00 | Flooding |1.00

 | Flooding |1.00 | saturated zone | | Depth to |0.75

 | Low strength |1.00 | Flooding |0.80 | saturated zone |

 | Depth to |0.75 | | | |

 | saturated zone | | | | |

 | | | | | |

3646L: | | | | | |

 Fluvaquents---------|Very limited | |Very limited | |Very limited |

 | Ponding |1.00 | Ponding |1.00 | Ponding |1.00

 | 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 | | | |

 | Low strength |1.00 | | | |

 | | | | | |

7076A: | | | | | |

 Otter---------------|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 |

 | Frost action |1.00 | | | |

 | Low strength |1.00 | | | |

 | Flooding |0.40 | | | |

 | | | | | |

7083A: | | | | | |

 Wabash--------------|Very limited | |Very limited | |Very limited |

 | Shrink-swell |1.00 | 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 | | Too clayey |0.50 | Too clayey |1.00

 | Frost action |1.00 | | | |

 | Low strength |1.00 | | | |

 | | | | | |
Rock Island County, Illinois 271

Table 14b.--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 | ___________________________________________________________________________________________________

 | | | | | |

7107A: | | | | | |

 Sawmill-------------|Very limited | |Very limited | |Very limited |

 | Ponding |1.00 | Ponding |1.00 | Ponding |1.00

 | Frost action |1.00 | Depth to |1.00 | Depth to |1.00

 | Low strength |1.00 | saturated zone | | saturated zone |

 | Depth to |1.00 | | | |

 | saturated zone | | | | |

 | Shrink-swell |0.50 | | | |

 | | | | | |

7239A: | | | | | |

 Dorchester----------|Very limited | |Somewhat limited | |Not limited |

 | Frost action |1.00 | Depth to |0.16 | |

 | Flooding |0.40 | saturated zone | | |

 | Low strength |0.05 | | | |

 | | | | | |

7304A: | | | | | |

 Landes--------------|Somewhat limited | |Very limited | |Not limited |

 | Frost action |0.50 | Cutbanks cave |1.00 | |

 | Flooding |0.40 | Depth to |0.15 | |

 | | | saturated zone | | |

 | | | | | |

7415A: | | | | | |

 Orion---------------|Very limited | |Very limited | |Somewhat limited |

 | Frost action |1.00 | Cutbanks cave |1.00 | Depth to |0.19

 | Low strength |1.00 | Depth to |1.00 | saturated zone |

 | Flooding |0.40 | saturated zone | | |

 | Depth to |0.19 | | | |

 | saturated zone | | | | |

 | | | | | |

7428A: | | | | | |

 Coffeen-------------|Very limited | |Very limited | |Somewhat limited |

 | Frost action |1.00 | Depth to |1.00 | Depth to |0.75

 | Depth to |0.75 | saturated zone | | saturated zone |

 | saturated zone | | | | |

 | Flooding |0.40 | | | |

 | | | | | |

7451A: | | | | | |

 Lawson--------------|Very limited | |Very limited | |Somewhat limited |

 | Frost action |1.00 | Depth to |1.00 | Depth to |0.75

 | Depth to |0.75 | saturated zone | | saturated zone |

 | saturated zone | | | | |

 | Flooding |0.40 | | | |

 | Low strength |0.05 | | | |

 | | | | | |

7654A: | | | | | |

 Moline--------------|Very limited | |Very limited | |Very limited |

 | Shrink-swell |1.00 | 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 | | Too clayey |0.50 | Too clayey |1.00

 | Frost action |1.00 | | | |

 | Low strength |1.00 | | | |

 | | | | | |

8107+: | | | | | |

 Sawmill-------------|Very limited | |Very limited | |Very limited |

 | Frost action |1.00 | Depth to |1.00 | Depth to |1.00

 | Flooding |1.00 | saturated zone | | saturated zone |

 | Low strength |1.00 | Flooding |0.60 | Flooding |0.60

 | Depth to |1.00 | | | |

 | saturated zone | | | | |

 | Shrink-swell |0.50 | | | |

 | | | | | |
272 Soil Survey of

Table 14b.--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 | ___________________________________________________________________________________________________

 | | | | | |

8302A: | | | | | |

 Ambraw--------------|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 |

 | Frost action |1.00 | Flooding |0.60 | Flooding |0.60

 | Flooding |1.00 | | | |

 | Low strength |1.00 | | | |

 | | | | | |

8400A: | | | | | |

 Calco---------------|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 |

 | Frost action |1.00 | Flooding |0.60 | Flooding |0.60

 | Flooding |1.00 | | | |

 | Low strength |1.00 | | | |

 | | | | | |

8404A: | | | | | |

 Titus---------------|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 |

 | Frost action |1.00 | Flooding |0.60 | Flooding |0.60

 | Flooding |1.00 | | | |

 | Shrink-swell |1.00 | | | |

 | | | | | | ___________________________________________________________________________________________________
Table 15.--Sanitary Facilities (The information in this table indicates the dominant soil condition but does not eliminate the need for onsite investigation

 value columns range from 0.01 to 1.00. The larger the value, the greater the potential limitation. See text for further  in this table) _____________________________________________________________________________________________________________________________ | | | | | Map symbol | Septic tank | Sewage lagoons | Trench sanitary | Area sanitary |  and soil name | absorption fields | | landfill | landfill | ___________________________________________________________________________________________________________ | Rating class and |Value| Rating class and |Value| Rating class and |Value| Rating class and |Value| Ra | limiting features | | limiting features | | limiting features | | limiting features | | lim_____________________________________________________________________________________________________________________________ | | | | | | | | | 8D2, 8D3: | | | | | | | | |  Hickory---------|Somewhat limited | |Very limited | |Somewhat limited | |Somewhat limited | |Som | Slope |0.96 | Slope |1.00 | Slope |0.96 | Slope |0.96 | S | Restricted |0.46 | Seepage |0.53 | Too clayey |0.50 | | | T | permeability | | | | | | | |  | | | | | | | | | 8F, 8F3: | | | | | | | | |  Hickory---------|Very limited | |Very limited | |Very limited | |Very limited | |Ver | Slope |1.00 | Slope |1.00 | Slope |1.00 | Slope |1.00 | S | Restricted |0.46 | Seepage |0.53 | Too clayey |0.50 | | | T | permeability | | | | | | | |  | | | | | | | | | 19C3: | | | | | | | | |  Sylvan----------|Somewhat limited | |Very limited | |Somewhat limited | |Not limited | |Som | Restricted |0.46 | Slope |1.00 | Too clayey |0.50 | | | T | permeability | | Seepage |0.53 | | | | |  | | | | | | | | | 19D: | | | | | | | | |  Sylvan----------|Somewhat limited | |Very limited | |Somewhat limited | |Somewhat limited | |Som | Slope |0.96 | Slope |1.00 | Slope |0.96 | Slope |0.96 | S | Restricted |0.46 | Seepage |0.53 | Too clayey |0.50 | | | T | permeability | | | | | | | |  | | | | | | | | | 19D3: | | | | | | | | |  Sylvan----------|Somewhat limited | |Very limited | |Somewhat limited | |Somewhat limited | |Som | Slope |0.96 | Slope |1.00 | Slope |0.96 | Slope |0.96 | S | Restricted |0.46 | Seepage |0.53 | | | | |  | permeability | | | | | | | |  | | | | | | | | | 19F, 19F3: | | | | | | | | |  Sylvan----------|Very limited | |Very limited | |Very limited | |Very limited | |Ver | Slope |1.00 | Slope |1.00 | Slope |1.00 | Slope |1.00 | S | Restricted |0.46 | Seepage |0.53 | | | | |  | permeability | | | | | | | |  | | | | | | | | | 
Table 15.--Sanitary Facilities--Continued _____________________________________________________________________________________________________________________________

 | | | | | Map symbol | Septic tank | Sewage lagoons | Trench sanitary | Area sanitary |  and soil name | absorption fields | | landfill | landfill | ___________________________________________________________________________________________________________ | Rating class and |Value| Rating class and |Value| Rating class and |Value| Rating class and |Value| Ra | limiting features | | limiting features | | limiting features | | limiting features | | lim_____________________________________________________________________________________________________________________________ | | | | | | | | | 45A: | | | | | | | | |  Denny-----------|Very limited | |Very limited | |Very limited | |Very limited | |Ver | Restricted |1.00 | Ponding |1.00 | Depth to |1.00 | Ponding |1.00 | P | permeability | | Depth to |1.00 | saturated zone | | Depth to |1.00 | D | Ponding |1.00 | saturated zone | | Ponding |1.00 | saturated zone | |  | Depth to |1.00 | | | Too clayey |0.50 | | | T | saturated zone | | | | | | | |  | | | | | | | | | 51A: | | | | | | | | |  Muscatune-------|Very limited | |Very limited | |Very limited | |Very limited | |Ver | Depth to |1.00 | Depth to |1.00 | Depth to |1.00 | Depth to |1.00 | D | saturated zone | | saturated zone | | saturated zone | | saturated zone | |  | Restricted |0.46 | Seepage |0.53 | Too clayey |0.50 | | | T | permeability | | | | | | | |  | | | | | | | | | 61A: | | | | | | | | |  Atterberry------|Very limited | |Very limited | |Very limited | |Very limited | |Ver | Depth to |1.00 | Depth to |1.00 | Depth to |1.00 | Depth to |1.00 | D | saturated zone | | saturated zone | | saturated zone | | saturated zone | |  | Restricted |0.46 | Seepage |0.53 | Too clayey |0.50 | | | T | permeability | | | | | | | |  | | | | | | | | | 68A: | | | | | | | | |  Sable-----------|Very limited | |Very limited | |Very limited | |Very limited | |Ver | Ponding |1.00 | Ponding |1.00 | Depth to |1.00 | Ponding |1.00 | P | Depth to |1.00 | Depth to |1.00 | saturated zone | | Depth to |1.00 | D | saturated zone | | saturated zone | | Ponding |1.00 | saturated zone | |  | Restricted |0.46 | Seepage |0.53 | Too clayey |0.50 | | | T | permeability | | | | | | | |  | | | | | | | | | 86B: | | | | | | | | |  Osco------------|Somewhat limited | |Somewhat limited | |Very limited | |Very limited | |Som | Restricted |0.46 | Seepage |0.53 | Depth to |1.00 | Depth to |1.00 | T | permeability | | Slope |0.18 | saturated zone | | saturated zone | |  | Depth to |0.40 | | | Too clayey |0.50 | | |  | saturated zone | | | | | | | |  | | | | | | | | | 86C2: | | | | | | | | |  Osco------------|Somewhat limited | |Very limited | |Very limited | |Very limited | |Not  | Restricted |0.46 | Slope |1.00 | Depth to |1.00 | Depth to |1.00 |  | permeability | | Seepage |0.53 | saturated zone | | saturated zone | |  | Depth to |0.40 | | | | | | |  | saturated zone | | | | | | | |  | | | | | | | | | 
Table 15.--Sanitary Facilities--Continued _____________________________________________________________________________________________________________________________

 | | | | | Map symbol | Septic tank | Sewage lagoons | Trench sanitary | Area sanitary |  and soil name | absorption fields | | landfill | landfill | ___________________________________________________________________________________________________________ | Rating class and |Value| Rating class and |Value| Rating class and |Value| Rating class and |Value| Ra | limiting features | | limiting features | | limiting features | | limiting features | | lim_____________________________________________________________________________________________________________________________ | | | | | | | | | 87A: | | | | | | | | |  Dickinson-------|Very limited | |Very limited | |Very limited | |Very limited | |Ver | Filtering |1.00 | Seepage |1.00 | Seepage |1.00 | Seepage |1.00 | T | capacity | | | | Too sandy |1.00 | | | S | | | | | | | | | 87C2: | | | | | | | | |  Dickinson-------|Very limited | |Very limited | |Very limited | |Very limited | |Ver | Filtering |1.00 | Seepage |1.00 | Seepage |1.00 | Seepage |1.00 | T | capacity | | Slope |1.00 | Too sandy |1.00 | | | S | | | | | | | | | 88A: | | | | | | | | |  Sparta----------|Very limited | |Very limited | |Very limited | |Very limited | |Ver | Filtering |1.00 | Seepage |1.00 | Seepage |1.00 | Seepage |1.00 | T | capacity | | | | Too sandy |1.00 | | | S | | | | | | | | | 172A: | | | | | | | | |  Hoopeston-------|Very limited | |Very limited | |Very limited | |Very limited | |Som | Depth to |1.00 | Seepage |1.00 | Depth to |1.00 | Depth to |1.00 | D | saturated zone | | Depth to |1.00 | saturated zone | | saturated zone | |  | Filtering |1.00 | saturated zone | | Seepage |1.00 | Seepage |1.00 | S | capacity | | | | | | | |  | | | | | | | | | 212B: | | | | | | | | |  Thebes----------|Very limited | |Very limited | |Very limited | |Very limited | |Ver | Filtering |1.00 | Seepage |1.00 | Seepage |1.00 | Seepage |1.00 | S | capacity | | Slope |0.18 | | | | | T | Restricted |0.46 | | | | | | |  | permeability | | | | | | | |  | | | | | | | | | 250D: | | | | | | | | |  Velma-----------|Somewhat limited | |Very limited | |Somewhat limited | |Somewhat limited | |Som | Slope |0.96 | Slope |1.00 | Slope |0.96 | Slope |0.96 | S | Restricted |0.46 | Seepage |0.53 | Too clayey |0.50 | | | T | permeability | | | | | | | |  | | | | | | | | | 261A: | | | | | | | | |  Niota-----------|Very limited | |Very limited | |Very limited | |Very limited | |Ver | Restricted |1.00 | Ponding |1.00 | Depth to |1.00 | Ponding |1.00 | P | permeability | | Depth to |1.00 | saturated zone | | Depth to |1.00 | D | Ponding |1.00 | saturated zone | | Ponding |1.00 | saturated zone | |  | Depth to |1.00 | Seepage |0.28 | | | | |  | saturated zone | | | | | | | |  | | | | | | | | | 
Table 15.--Sanitary Facilities--Continued _____________________________________________________________________________________________________________________________

 | | | | | Map symbol | Septic tank | Sewage lagoons | Trench sanitary | Area sanitary |  and soil name | absorption fields | | landfill | landfill | ___________________________________________________________________________________________________________ | Rating class and |Value| Rating class and |Value| Rating class and |Value| Rating class and |Value| Ra | limiting features | | limiting features | | limiting features | | limiting features | | lim_____________________________________________________________________________________________________________________________ | | | | | | | | | 274B, 274B2: | | | | | | | | |  Seaton----------|Somewhat limited | |Somewhat limited | |Not limited | |Not limited | |Not  | Restricted |0.46 | Seepage |0.53 | | | | |  | permeability | | Slope |0.18 | | | | |  | | | | | | | | | 274C2: | | | | | | | | |  Seaton----------|Somewhat limited | |Very limited | |Not limited | |Not limited | |Not  | Restricted |0.46 | Slope |1.00 | | | | |  | permeability | | Seepage |0.53 | | | | |  | | | | | | | | | 274D2: | | | | | | | | |  Seaton----------|Somewhat limited | |Very limited | |Somewhat limited | |Somewhat limited | |Som | Slope |0.96 | Slope |1.00 | Slope |0.96 | Slope |0.96 | S | Restricted |0.46 | Seepage |0.53 | | | | |  | permeability | | | | | | | |  | | | | | | | | | 275A: | | | | | | | | |  Joy-------------|Very limited | |Very limited | |Very limited | |Very limited | |Ver | Depth to |1.00 | Depth to |1.00 | Depth to |1.00 | Depth to |1.00 | D | saturated zone | | saturated zone | | saturated zone | | saturated zone | |  | Restricted |0.46 | Seepage |0.53 | | | | |  | permeability | | | | | | | |  | | | | | | | | | 278A: | | | | | | | | |  Stronghurst-----|Very limited | |Very limited | |Very limited | |Very limited | |Ver | Depth to |1.00 | Depth to |1.00 | Depth to |1.00 | Depth to |1.00 | D | saturated zone | | saturated zone | | saturated zone | | saturated zone | |  | Restricted |0.46 | Seepage |0.53 | Too clayey |0.50 | | | T | permeability | | | | | | | |  | | | | | | | | | 279A: | | | | | | | | |  Rozetta---------|Somewhat limited | |Somewhat limited | |Very limited | |Very limited | |Som | Restricted |0.46 | Seepage |0.53 | Depth to |1.00 | Depth to |1.00 | T | permeability | | | | saturated zone | | saturated zone | |  | Depth to |0.40 | | | Too clayey |0.50 | | |  | saturated zone | | | | | | | |  | | | | | | | | | 279B: | | | | | | | | |  Rozetta---------|Somewhat limited | |Somewhat limited | |Very limited | |Very limited | |Som | Restricted |0.46 | Seepage |0.53 | Depth to |1.00 | Depth to |1.00 | T | permeability | | Slope |0.18 | saturated zone | | saturated zone | |  | Depth to |0.40 | | | Too clayey |0.50 | | |  | saturated zone | | | | | | | |  | | | | | | | | | 
Table 15.--Sanitary Facilities--Continued _____________________________________________________________________________________________________________________________

 | | | | | Map symbol | Septic tank | Sewage lagoons | Trench sanitary | Area sanitary |  and soil name | absorption fields | | landfill | landfill | ___________________________________________________________________________________________________________ | Rating class and |Value| Rating class and |Value| Rating class and |Value| Rating class and |Value| Ra | limiting features | | limiting features | | limiting features | | limiting features | | lim_____________________________________________________________________________________________________________________________ | | | | | | | | | 280B, 280B2: | | | | | | | | |  Fayette---------|Somewhat limited | |Somewhat limited | |Somewhat limited | |Not limited | |Som | Restricted |0.46 | Seepage |0.53 | Too clayey |0.50 | | | T | permeability | | Slope |0.18 | | | | |  | | | | | | | | | 280C2, 280C3: | | | | | | | | |  Fayette---------|Somewhat limited | |Very limited | |Somewhat limited | |Not limited | |Som | Restricted |0.46 | Slope |1.00 | Too clayey |0.50 | | | T | permeability | | Seepage |0.53 | | | | |  | | | | | | | | | 317A: | | | | | | | | |  Millsdale-------|Very limited | |Very limited | |Very limited | |Very limited | |Ver | Depth to bedrock |1.00 | Depth to hard |1.00 | Depth to |1.00 | Ponding |1.00 | D | Ponding |1.00 | bedrock | | saturated zone | | Depth to |1.00 | P | Depth to |1.00 | Ponding |1.00 | Ponding |1.00 | saturated zone | | D | saturated zone | | Depth to |1.00 | Depth to bedrock |1.00 | Depth to bedrock |1.00 |  | Restricted |1.00 | saturated zone | | Too clayey |1.00 | | | T | permeability | | | | | | | | H | | | | | | | | | 430A: | | | | | | | | |  Raddle----------|Somewhat limited | |Somewhat limited | |Not limited | |Not limited | |Not  | Restricted |0.46 | Seepage |0.53 | | | | |  | permeability | | | | | | | |  | | | | | | | | | 430B: | | | | | | | | |  Raddle----------|Somewhat limited | |Somewhat limited | |Not limited | |Not limited | |Not  | Restricted |0.46 | Seepage |0.53 | | | | |  | permeability | | Slope |0.18 | | | | |  | | | | | | | | | 525A: | | | | | | | | |  Joslin----------|Somewhat limited | |Somewhat limited | |Very limited | |Somewhat limited | |Som | Depth to bedrock |0.78 | Seepage |0.53 | Depth to bedrock |1.00 | Depth to bedrock |0.42 | T | Restricted |0.46 | Depth to hard |0.42 | Too clayey |0.50 | | | D | permeability | | bedrock | | | | | |  | | | | | | | | | 567C2: | | | | | | | | |  Elkhart---------|Somewhat limited | |Very limited | |Very limited | |Very limited | |Not  | Restricted |0.46 | Slope |1.00 | Depth to |1.00 | Depth to |1.00 |  | permeability | | Seepage |0.53 | saturated zone | | saturated zone | |  | Depth to |0.43 | | | | | | |  | saturated zone | | | | | | | |  | | | | | | | | | 
Table 15.--Sanitary Facilities--Continued _____________________________________________________________________________________________________________________________

 | | | | | Map symbol | Septic tank | Sewage lagoons | Trench sanitary | Area sanitary |  and soil name | absorption fields | | landfill | landfill | ___________________________________________________________________________________________________________ | Rating class and |Value| Rating class and |Value| Rating class and |Value| Rating class and |Value| Ra | limiting features | | limiting features | | limiting features | | limiting features | | lim_____________________________________________________________________________________________________________________________ | | | | | | | | | 567D2: | | | | | | | | |  Elkhart---------|Somewhat limited | |Very limited | |Very limited | |Very limited | |Som | Slope |0.96 | Slope |1.00 | Depth to |1.00 | Depth to |1.00 | S | Restricted |0.46 | Seepage |0.53 | saturated zone | | saturated zone | |  | permeability | | | | Slope |0.96 | Slope |0.96 |  | Depth to |0.43 | | | | | | |  | saturated zone | | | | | | | |  | | | | | | | | | 570B: | | | | | | | | |  Martinsville----|Somewhat limited | |Somewhat limited | |Not limited | |Not limited | |Not  | Restricted |0.46 | Seepage |0.53 | | | | |  | permeability | | Slope |0.18 | | | | |  | | | | | | | | | 570C3: | | | | | | | | |  Martinsville----|Somewhat limited | |Very limited | |Not limited | |Not limited | |Not  | Restricted |0.46 | Slope |1.00 | | | | |  | permeability | | Seepage |0.53 | | | | |  | | | | | | | | | 570D3: | | | | | | | | |  Martinsville----|Somewhat limited | |Very limited | |Somewhat limited | |Somewhat limited | |Som | Slope |0.96 | Slope |1.00 | Slope |0.96 | Slope |0.96 | S | Restricted |0.46 | Seepage |0.53 | | | | |  | permeability | | | | | | | |  | | | | | | | | | 647A: | | | | | | | | |  Lawler----------|Very limited | |Very limited | |Very limited | |Very limited | |Ver | Depth to |1.00 | Seepage |1.00 | Depth to |1.00 | Depth to |1.00 | T | saturated zone | | Depth to |1.00 | saturated zone | | saturated zone | | S | Filtering |1.00 | saturated zone | | Seepage |1.00 | Seepage |1.00 | D | capacity | | | | Too sandy |1.00 | | |  | Restricted |0.46 | | | | | | |  | permeability | | | | | | | |  | | | | | | | | | 671A: | | | | | | | | |  Biggsville------|Somewhat limited | |Somewhat limited | |Very limited | |Very limited | |Not  | Restricted |0.46 | Seepage |0.53 | Depth to |1.00 | Depth to |1.00 |  | permeability | | | | saturated zone | | saturated zone | |  | Depth to |0.40 | | | | | | |  | saturated zone | | | | | | | |  | | | | | | | | | 671B: | | | | | | | | |  Biggsville------|Somewhat limited | |Somewhat limited | |Very limited | |Very limited | |Not  | Restricted |0.46 | Seepage |0.53 | Depth to |1.00 | Depth to |1.00 |  | permeability | | Slope |0.18 | saturated zone | | saturated zone | |  | Depth to |0.40 | | | | | | |  | saturated zone | | | | | | | |  | | | | | | | | | 
Table 15.--Sanitary Facilities--Continued _____________________________________________________________________________________________________________________________

 | | | | | Map symbol | Septic tank | Sewage lagoons | Trench sanitary | Area sanitary |  and soil name | absorption fields | | landfill | landfill | ___________________________________________________________________________________________________________ | Rating class and |Value| Rating class and |Value| Rating class and |Value| Rating class and |Value| Ra | limiting features | | limiting features | | limiting features | | limiting features | | lim_____________________________________________________________________________________________________________________________ | | | | | | | | | 675A: | | | | | | | | |  Greenbush-------|Somewhat limited | |Somewhat limited | |Very limited | |Very limited | |Som | Restricted |0.46 | Seepage |0.53 | Depth to |1.00 | Depth to |1.00 | T | permeability | | | | saturated zone | | saturated zone | |  | Depth to |0.40 | | | Too clayey |0.50 | | |  | saturated zone | | | | | | | |  | | | | | | | | | 675B: | | | | | | | | |  Greenbush-------|Somewhat limited | |Somewhat limited | |Very limited | |Very limited | |Som | Restricted |0.46 | Seepage |0.53 | Depth to |1.00 | Depth to |1.00 | T | permeability | | Slope |0.18 | saturated zone | | saturated zone | |  | Depth to |0.40 | | | Too clayey |0.50 | | |  | saturated zone | | | | | | | |  | | | | | | | | | 689B: | | | | | | | | |  Coloma----------|Very limited | |Very limited | |Very limited | |Very limited | |Ver | Filtering |1.00 | Seepage |1.00 | Seepage |1.00 | Seepage |1.00 | T | capacity | | Slope |0.32 | Too sandy |1.00 | | | S | | | | | | | | | 689D: | | | | | | | | |  Coloma----------|Very limited | |Very limited | |Very limited | |Very limited | |Ver | Filtering |1.00 | Slope |1.00 | Seepage |1.00 | Seepage |1.00 | T | capacity | | Seepage |1.00 | Too sandy |1.00 | Slope |0.37 | S | Slope |0.37 | | | Slope |0.37 | | | S | | | | | | | | | 705A: | | | | | | | | |  Buckhart--------|Very limited | |Very limited | |Very limited | |Very limited | |Som | Depth to |1.00 | Depth to |1.00 | Depth to |1.00 | Depth to |1.00 | T | saturated zone | | saturated zone | | saturated zone | | saturated zone | | D | Restricted |0.46 | Seepage |0.53 | Too clayey |0.50 | | |  | permeability | | | | | | | |  | | | | | | | | | 727A: | | | | | | | | |  Waukee----------|Very limited | |Very limited | |Very limited | |Very limited | |Ver | Filtering |1.00 | Seepage |1.00 | Seepage |1.00 | Seepage |1.00 | T | capacity | | | | Too sandy |1.00 | | | S | Restricted |0.46 | | | | | | |  | permeability | | | | | | | |  | | | | | | | | | 741F: | | | | | | | | |  Oakville--------|Very limited | |Very limited | |Very limited | |Very limited | |Ver | Filtering |1.00 | Slope |1.00 | Slope |1.00 | Slope |1.00 | S | capacity | | Seepage |1.00 | Seepage |1.00 | Seepage |1.00 | T | Slope |1.00 | | | Too sandy |1.00 | | | S | | | | | | | | | 
Table 15.--Sanitary Facilities--Continued _____________________________________________________________________________________________________________________________

 | | | | | Map symbol | Septic tank | Sewage lagoons | Trench sanitary | Area sanitary |  and soil name | absorption fields | | landfill | landfill | ___________________________________________________________________________________________________________ | Rating class and |Value| Rating class and |Value| Rating class and |Value| Rating class and |Value| Ra | limiting features | | limiting features | | limiting features | | limiting features | | lim_____________________________________________________________________________________________________________________________ | | | | | | | | | 763A: | | | | | | | | |  Joslin----------|Very limited | |Somewhat limited | |Not limited | |Not limited | |Not  | Restricted |1.00 | Seepage |0.53 | | | | |  | permeability | | | | | | | |  | | | | | | | | | 763B: | | | | | | | | |  Joslin----------|Very limited | |Somewhat limited | |Not limited | |Not limited | |Not  | Restricted |1.00 | Seepage |0.53 | | | | |  | permeability | | Slope |0.18 | | | | |  | | | | | | | | | 764A: | | | | | | | | |  Coyne-----------|Very limited | |Somewhat limited | |Not limited | |Very limited | |Not  | Restricted |1.00 | Seepage |0.53 | | | Seepage |1.00 |  | permeability | | | | | | | |  | | | | | | | | | 764C: | | | | | | | | |  Coyne-----------|Very limited | |Very limited | |Very limited | |Very limited | |Not  | Filtering |1.00 | Seepage |1.00 | Seepage |1.00 | Seepage |1.00 |  | capacity | | Slope |1.00 | | | | |  | Restricted |1.00 | | | | | | |  | permeability | | | | | | | |  | | | | | | | | | 774A: | | | | | | | | |  Saude-----------|Very limited | |Very limited | |Very limited | |Very limited | |Ver | Filtering |1.00 | Seepage |1.00 | Seepage |1.00 | Seepage |1.00 | T | capacity | | | | Too sandy |1.00 | | | S | | | | | | | | | 800C: | | | | | | | | |  Psamments-------|Very limited | |Very limited | |Very limited | |Very limited | |Ver | Filtering |1.00 | Slope |1.00 | Seepage |1.00 | Seepage |1.00 | T | capacity | | | | Too sandy |1.00 | Slope |0.09 | S | Slope |0.09 | | | Slope |0.09 | | | S | | | | | | | | | 802B: | | | | | | | | |  Orthents--------|Very limited | |Somewhat limited | |Not limited | |Not limited | |Not  | Restricted |1.00 | Slope |0.32 | | | | |  | permeability | | | | | | | |  | | | | | | | | | 864: | | | | | | | | |  Pits, quarries--|Not rated | |Not rated | |Not rated | |Not rated | |Not  | | | | | | | | | 865: | | | | | | | | |  Pits, gravel----|Not rated | |Not rated | |Not rated | |Not rated | |Not  | | | | | | | | | 
Table 15.--Sanitary Facilities--Continued _____________________________________________________________________________________________________________________________

 | | | | | Map symbol | Septic tank | Sewage lagoons | Trench sanitary | Area sanitary |  and soil name | absorption fields | | landfill | landfill | ___________________________________________________________________________________________________________ | Rating class and |Value| Rating class and |Value| Rating class and |Value| Rating class and |Value| Ra | limiting features | | limiting features | | limiting features | | limiting features | | lim_____________________________________________________________________________________________________________________________ | | | | | | | | | 898F3, 898G: | | | | | | | | |  Hickory---------|Very limited | |Very limited | |Very limited | |Very limited | |Ver | Slope |1.00 | Slope |1.00 | Slope |1.00 | Slope |1.00 | S | Restricted |0.46 | Seepage |0.53 | Too clayey |0.50 | | | T | permeability | | | | | | | |  | | | | | | | | |  Sylvan----------|Very limited | |Very limited | |Very limited | |Very limited | |Ver | Slope |1.00 | Slope |1.00 | Slope |1.00 | Slope |1.00 | S | Restricted |0.46 | Seepage |0.53 | | | | |  | permeability | | | | | | | |  | | | | | | | | | 913D2: | | | | | | | | |  Marseilles------|Very limited | |Very limited | |Very limited | |Very limited | |Ver | Depth to bedrock |1.00 | Depth to soft |1.00 | Depth to bedrock |1.00 | Depth to bedrock |1.00 | D | Slope |0.96 | bedrock | | Slope |0.96 | Slope |0.96 | S | | | Slope |1.00 | Too clayey |0.50 | | | T | | | | | | | | |  | | | | | | | | |  Hickory---------|Somewhat limited | |Very limited | |Somewhat limited | |Somewhat limited | |Som | Slope |0.96 | Slope |1.00 | Slope |0.96 | Slope |0.96 | S | Restricted |0.46 | Seepage |0.53 | Too clayey |0.50 | | | T | permeability | | | | | | | |  | | | | | | | | | 913F: | | | | | | | | |  Marseilles------|Very limited | |Very limited | |Very limited | |Very limited | |Ver | Depth to bedrock |1.00 | Depth to soft |1.00 | Slope |1.00 | Slope |1.00 | D | Slope |1.00 | bedrock | | Depth to bedrock |1.00 | Depth to bedrock |1.00 | S | | | Slope |1.00 | Too clayey |0.50 | | | T | | | Seepage |0.53 | | | | |  | | | | | | | | |  Hickory---------|Very limited | |Very limited | |Very limited | |Very limited | |Ver | Slope |1.00 | Slope |1.00 | Slope |1.00 | Slope |1.00 | S | Restricted |0.46 | Seepage |0.53 | Too clayey |0.50 | | | T | permeability | | | | | | | |  | | | | | | | | | 913G: | | | | | | | | |  Marseilles------|Very limited | |Very limited | |Very limited | |Very limited | |Ver | Depth to bedrock |1.00 | Depth to soft |1.00 | Slope |1.00 | Slope |1.00 | D | Slope |1.00 | bedrock | | Depth to bedrock |1.00 | Depth to bedrock |1.00 | S | | | Slope |1.00 | Too clayey |0.50 | | | T | | | | | | | | |  Hickory---------|Very limited | |Very limited | |Very limited | |Very limited | |Ver | Slope |1.00 | Slope |1.00 | Slope |1.00 | Slope |1.00 | S | Restricted |0.46 | Seepage |0.53 | Too clayey |0.50 | | | T | permeability | | | | | | | |  | | | | | | | | | 
Table 15.--Sanitary Facilities--Continued _____________________________________________________________________________________________________________________________

 | | | | | Map symbol | Septic tank | Sewage lagoons | Trench sanitary | Area sanitary |  and soil name | absorption fields | | landfill | landfill | ___________________________________________________________________________________________________________ | Rating class and |Value| Rating class and |Value| Rating class and |Value| Rating class and |Value| Ra | limiting features | | limiting features | | limiting features | | limiting features | | lim_____________________________________________________________________________________________________________________________ | | | | | | | | | 917C2: | | | | | | | | |  Oakville--------|Very limited | |Very limited | |Very limited | |Very limited | |Ver | Filtering |1.00 | Seepage |1.00 | Seepage |1.00 | Seepage |1.00 | T | capacity | | Slope |1.00 | Too sandy |1.00 | | | S | | | | | | | | |  Tell------------|Very limited | |Very limited | |Very limited | |Very limited | |Ver | Filtering |1.00 | Seepage |1.00 | Seepage |1.00 | Seepage |1.00 | S | capacity | | Slope |1.00 | Too sandy |1.00 | | | T | Restricted |0.46 | | | | | | |  | permeability | | | | | | | |  | | | | | | | | | 917D2: | | | | | | | | |  Oakville--------|Very limited | |Very limited | |Very limited | |Very limited | |Ver | Filtering |1.00 | Slope |1.00 | Seepage |1.00 | Seepage |1.00 | T | capacity | | Seepage |1.00 | Too sandy |1.00 | Slope |0.96 | S | Slope |0.96 | | | Slope |0.96 | | | S | | | | | | | | |  Tell------------|Very limited | |Very limited | |Very limited | |Very limited | |Ver | Filtering |1.00 | Slope |1.00 | Seepage |1.00 | Seepage |1.00 | T | capacity | | Seepage |1.00 | Too sandy |1.00 | Slope |0.96 | S | Slope |0.96 | | | Slope |0.96 | | | S | Restricted |0.46 | | | | | | |  | permeability | | | | | | | |  | | | | | | | | | 943D2: | | | | | | | | |  Seaton----------|Somewhat limited | |Very limited | |Somewhat limited | |Somewhat limited | |Som | Slope |0.96 | Slope |1.00 | Slope |0.96 | Slope |0.96 | S | Restricted |0.46 | Seepage |0.53 | | | | |  | permeability | | | | | | | |  | | | | | | | | |  Timula----------|Somewhat limited | |Very limited | |Somewhat limited | |Somewhat limited | |Som | Slope |0.96 | Slope |1.00 | Slope |0.96 | Slope |0.96 | S | Restricted |0.46 | Seepage |0.53 | | | | |  | permeability | | | | | | | |  | | | | | | | | | 943F2: | | | | | | | | |  Seaton----------|Very limited | |Very limited | |Very limited | |Very limited | |Ver | Slope |1.00 | Slope |1.00 | Slope |1.00 | Slope |1.00 | S | Restricted |0.46 | Seepage |0.53 | | | | |  | permeability | | | | | | | |  | | | | | | | | |  Timula----------|Very limited | |Very limited | |Very limited | |Very limited | |Ver | Slope |1.00 | Slope |1.00 | Slope |1.00 | Slope |1.00 | S | Restricted |0.46 | Seepage |0.53 | | | | |  | permeability | | | | | | | |  | | | | | | | | | 
Table 15.--Sanitary Facilities--Continued ______________________________________________________________________________________________________________________________

 | | | | | Map symbol | Septic tank | Sewage lagoons | Trench sanitary | Area sanitary |  and soil name | absorption fields | | landfill | landfill | ____________________________________________________________________________________________________________ | Rating class and |Value| Rating class and |Value| Rating class and |Value| Rating class and |Value| Rat | limiting features | | limiting features | | limiting features | | limiting features | | lim______________________________________________________________________________________________________________________________ | | | | | | | | | 944D2: | | | | | | | | |  Velma-----------|Somewhat limited | |Very limited | |Somewhat limited | |Somewhat limited | |Some | Slope |0.96 | Slope |1.00 | Slope |0.96 | Slope |0.96 | Sl | Restricted |0.46 | Seepage |0.53 | Too clayey |0.50 | | | To | permeability | | | | | | | |  | | | | | | | | |  Coatsburg-------|Very limited | |Very limited | |Very limited | |Very limited | |Very  | Restricted |1.00 | Slope |1.00 | Depth to |1.00 | Depth to |1.00 | De | permeability | | | | saturated zone | | saturated zone | | s | Depth to |1.00 | | | Too clayey |1.00 | Slope |0.96 | To | saturated zone | | | | Slope |0.96 | | | Ha | Slope |0.96 | | | | | | | Sl | | | | | | | | | 946D3: | | | | | | | | |  Hickory---------|Somewhat limited | |Very limited | |Somewhat limited | |Somewhat limited | |Some | Slope |0.96 | Slope |1.00 | Slope |0.96 | Slope |0.96 | Sl | Restricted |0.46 | Seepage |0.53 | Too clayey |0.50 | | | To | permeability | | | | | | | |  | | | | | | | | |  Atlas-----------|Very limited | |Very limited | |Very limited | |Very limited | |Very  | Restricted |1.00 | Slope |1.00 | Depth to |1.00 | Depth to |1.00 | To | permeability | | | | saturated zone | | saturated zone | | Ha | Depth to |1.00 | | | Too clayey |1.00 | Slope |0.96 | De | saturated zone | | | | Slope |0.96 | | | s | Slope |0.96 | | | | | | | Sl | | | | | | | | | 946F3: | | | | | | | | |  Hickory---------|Very limited | |Very limited | |Very limited | |Very limited | |Very  | Slope |1.00 | Slope |1.00 | Slope |1.00 | Slope |1.00 | Sl | Restricted |0.46 | Seepage |0.53 | Too clayey |0.50 | | | To | permeability | | | | | | | |  | | | | | | | | |  Atlas-----------|Very limited | |Very limited | |Very limited | |Very limited | |Very  | Restricted |1.00 | Slope |1.00 | Depth to |1.00 | Slope |1.00 | Sl | permeability | | | | saturated zone | | Depth to |1.00 | To | Depth to |1.00 | | | Slope |1.00 | saturated zone | | Ha | saturated zone | | | | Too clayey |1.00 | | | De | Slope |1.00 | | | | | | | s | | | | | | | | | 959G: | | | | | | | | |  Strawn----------|Very limited | |Very limited | |Very limited | |Very limited | |Very  | Slope |1.00 | Slope |1.00 | Slope |1.00 | Slope |1.00 | Sl | Restricted |0.46 | Seepage |0.53 | | | | |  | permeability | | | | | | | |  | | | | | | | | | 
Table 15.--Sanitary Facilities--Continued ______________________________________________________________________________________________________________________________

 | | | | | Map symbol | Septic tank | Sewage lagoons | Trench sanitary | Area sanitary |  and soil name | absorption fields | | landfill | landfill | ____________________________________________________________________________________________________________ | Rating class and |Value| Rating class and |Value| Rating class and |Value| Rating class and |Value| Rat | limiting features | | limiting features | | limiting features | | limiting features | | lim______________________________________________________________________________________________________________________________ | | | | | | | | | 959G: | | | | | | | | |  Chute-----------|Very limited | |Very limited | |Very limited | |Very limited | |Very  | Filtering |1.00 | Slope |1.00 | Slope |1.00 | Slope |1.00 | Sl | capacity | | Seepage |1.00 | Seepage |1.00 | Seepage |1.00 | To | Slope |1.00 | | | Too sandy |1.00 | | | Se | | | | | | | | | 960D2, 960D3: | | | | | | | | |  Hickory---------|Somewhat limited | |Very limited | |Somewhat limited | |Somewhat limited | |Some | Slope |0.96 | Slope |1.00 | Slope |0.96 | Slope |0.96 | Sl | Restricted |0.46 | Seepage |0.53 | Too clayey |0.50 | | | To | permeability | | | | | | | |  | | | | | | | | |  Sylvan----------|Somewhat limited | |Very limited | |Somewhat limited | |Somewhat limited | |Some | Slope |0.96 | Slope |1.00 | Slope |0.96 | Slope |0.96 | Sl | Restricted |0.46 | Seepage |0.53 | | | | |  | permeability | | | | | | | |  | | | | | | | | |  Fayette---------|Somewhat limited | |Very limited | |Somewhat limited | |Somewhat limited | |Some | Slope |0.96 | Slope |1.00 | Slope |0.96 | Slope |0.96 | Sl | Restricted |0.46 | Seepage |0.53 | Too clayey |0.50 | | | To | permeability | | | | | | | |  | | | | | | | | | 960F: | | | | | | | | |  Hickory---------|Very limited | |Very limited | |Very limited | |Very limited | |Very  | Slope |1.00 | Slope |1.00 | Slope |1.00 | Slope |1.00 | Sl | Restricted |0.46 | Seepage |0.53 | Too clayey |0.50 | | | To | permeability | | | | | | | |  | | | | | | | | |  Sylvan----------|Very limited | |Very limited | |Very limited | |Very limited | |Very  | Slope |1.00 | Slope |1.00 | Slope |1.00 | Slope |1.00 | Sl | Restricted |0.46 | Seepage |0.53 | | | | |  | permeability | | | | | | | |  | | | | | | | | |  Fayette---------|Very limited | |Very limited | |Very limited | |Very limited | |Very  | Slope |1.00 | Slope |1.00 | Slope |1.00 | Slope |1.00 | Sl | Restricted |0.46 | Seepage |0.53 | Too clayey |0.50 | | | To | permeability | | | | | | | |  | | | | | | | | | 961A: | | | | | | | | |  Burkhardt-------|Very limited | |Very limited | |Very limited | |Very limited | |Very  | Filtering |1.00 | Seepage |1.00 | Seepage |1.00 | Seepage |1.00 | To | capacity | | | | Too sandy |1.00 | | | Se | | | | | | | | |  Saude-----------|Very limited | |Very limited | |Very limited | |Very limited | |Very  | Filtering |1.00 | Seepage |1.00 | Seepage |1.00 | Seepage |1.00 | To | capacity | | | | Too sandy |1.00 | | | Se | | | | | | | | | 
Table 15.--Sanitary Facilities--Continued _____________________________________________________________________________________________________________________________

 | | | | | Map symbol | Septic tank | Sewage lagoons | Trench sanitary | Area sanitary |  and soil name | absorption fields | | landfill | landfill | ___________________________________________________________________________________________________________ | Rating class and |Value| Rating class and |Value| Rating class and |Value| Rating class and |Value| Ra | limiting features | | limiting features | | limiting features | | limiting features | | lim_____________________________________________________________________________________________________________________________ | | | | | | | | | 962F: | | | | | | | | |  Sylvan----------|Very limited | |Very limited | |Very limited | |Very limited | |Ver | Slope |1.00 | Slope |1.00 | Slope |1.00 | Slope |1.00 | S | Restricted |0.46 | Seepage |0.53 | | | | |  | permeability | | | | | | | |  | | | | | | | | |  Bold------------|Very limited | |Very limited | |Very limited | |Very limited | |Ver | Slope |1.00 | Slope |1.00 | Slope |1.00 | Slope |1.00 | S | Restricted |0.46 | Seepage |0.53 | | | | |  | permeability | | | | | | | |  | | | | | | | | | 1076A: | | | | | | | | |  Otter-----------|Very limited | |Very limited | |Very limited | |Very limited | |Ver | Flooding |1.00 | Ponding |1.00 | Flooding |1.00 | Flooding |1.00 | P | Ponding |1.00 | Flooding |1.00 | Depth to |1.00 | Ponding |1.00 | D | Depth to |1.00 | Depth to |1.00 | saturated zone | | Depth to |1.00 |  | saturated zone | | saturated zone | | Ponding |1.00 | saturated zone | |  | Restricted |0.46 | Seepage |0.53 | | | | |  | permeability | | | | | | | |  | | | | | | | | | 1082A: | | | | | | | | |  Millington------|Very limited | |Very limited | |Very limited | |Very limited | |Ver | Flooding |1.00 | Ponding |1.00 | Flooding |1.00 | Flooding |1.00 | P | Ponding |1.00 | Flooding |1.00 | Depth to |1.00 | Ponding |1.00 | D | Depth to |1.00 | Depth to |1.00 | saturated zone | | Depth to |1.00 |  | saturated zone | | saturated zone | | Ponding |1.00 | saturated zone | |  | Restricted |0.46 | Seepage |0.53 | | | | |  | permeability | | | | | | | |  | | | | | | | | | 1107A: | | | | | | | | |  Sawmill---------|Very limited | |Very limited | |Very limited | |Very limited | |Ver | Flooding |1.00 | Ponding |1.00 | Flooding |1.00 | Flooding |1.00 | P | Ponding |1.00 | Flooding |1.00 | Depth to |1.00 | Ponding |1.00 | D | Depth to |1.00 | Depth to |1.00 | saturated zone | | Depth to |1.00 |  | saturated zone | | saturated zone | | Ponding |1.00 | saturated zone | | T | Restricted |0.46 | Seepage |0.53 | Too clayey |0.50 | | |  | permeability | | | | | | | |  | | | | | | | | | 
Table 15.--Sanitary Facilities--Continued _____________________________________________________________________________________________________________________________

 | | | | | Map symbol | Septic tank | Sewage lagoons | Trench sanitary | Area sanitary |  and soil name | absorption fields | | landfill | landfill | ___________________________________________________________________________________________________________ | Rating class and |Value| Rating class and |Value| Rating class and |Value| Rating class and |Value| Ra | limiting features | | limiting features | | limiting features | | limiting features | | lim_____________________________________________________________________________________________________________________________ | | | | | | | | | 1334A: | | | | | | | | |  Birds-----------|Very limited | |Very limited | |Very limited | |Very limited | |Ver | Flooding |1.00 | Ponding |1.00 | Flooding |1.00 | Flooding |1.00 | P | Ponding |1.00 | Flooding |1.00 | Depth to |1.00 | Ponding |1.00 | D | Depth to |1.00 | Depth to |1.00 | saturated zone | | Depth to |1.00 |  | saturated zone | | saturated zone | | Ponding |1.00 | saturated zone | |  | Restricted |0.46 | Seepage |0.53 | | | | |  | permeability | | | | | | | |  | | | | | | | | | 1400A: | | | | | | | | |  Calco-----------|Very limited | |Very limited | |Very limited | |Very limited | |Ver | Flooding |1.00 | Ponding |1.00 | Flooding |1.00 | Flooding |1.00 | P | Ponding |1.00 | Flooding |1.00 | Depth to |1.00 | Ponding |1.00 | D | Depth to |1.00 | Depth to |1.00 | saturated zone | | Depth to |1.00 |  | saturated zone | | saturated zone | | Ponding |1.00 | saturated zone | | H | Restricted |0.46 | Seepage |0.53 | Too clayey |0.50 | | | T | permeability | | | | | | | |  | | | | | | | | | 1654A: | | | | | | | | |  Moline----------|Very limited | |Very limited | |Very limited | |Very limited | |Ver | Flooding |1.00 | Ponding |1.00 | Flooding |1.00 | Flooding |1.00 | P | Restricted |1.00 | Flooding |1.00 | Depth to |1.00 | Ponding |1.00 | D | permeability | | Depth to |1.00 | saturated zone | | Depth to |1.00 |  | Ponding |1.00 | saturated zone | | Ponding |1.00 | saturated zone | | T | Depth to |1.00 | | | Too clayey |1.00 | | | H | saturated zone | | | | | | | |  | | | | | | | | | 3074A: | | | | | | | | |  Radford---------|Very limited | |Very limited | |Very limited | |Very limited | |Ver | Flooding |1.00 | Flooding |1.00 | Flooding |1.00 | Flooding |1.00 | D | Depth to |1.00 | Depth to |1.00 | Depth to |1.00 | Depth to |1.00 |  | saturated zone | | saturated zone | | saturated zone | | saturated zone | | T | Restricted |0.46 | Seepage |0.53 | Too clayey |0.50 | | |  | permeability | | | | | | | |  | | | | | | | | | 3076A: | | | | | | | | |  Otter-----------|Very limited | |Very limited | |Very limited | |Very limited | |Ver | Flooding |1.00 | Ponding |1.00 | Flooding |1.00 | Flooding |1.00 | P | Ponding |1.00 | Flooding |1.00 | Depth to |1.00 | Ponding |1.00 | D | Depth to |1.00 | Depth to |1.00 | saturated zone | | Depth to |1.00 |  | saturated zone | | saturated zone | | Ponding |1.00 | saturated zone | |  | Restricted |0.46 | Seepage |0.53 | | | | |  | permeability | | | | | | | |  | | | | | | | | | 
Table 15.--Sanitary Facilities--Continued _____________________________________________________________________________________________________________________________

 | | | | | Map symbol | Septic tank | Sewage lagoons | Trench sanitary | Area sanitary |  and soil name | absorption fields | | landfill | landfill | ___________________________________________________________________________________________________________ | Rating class and |Value| Rating class and |Value| Rating class and |Value| Rating class and |Value| Ra | limiting features | | limiting features | | limiting features | | limiting features | | lim_____________________________________________________________________________________________________________________________ | | | | | | | | | 3082A: | | | | | | | | |  Millington------|Very limited | |Very limited | |Very limited | |Very limited | |Ver | Flooding |1.00 | Flooding |1.00 | Flooding |1.00 | Flooding |1.00 | D | Depth to |1.00 | Depth to |1.00 | Depth to |1.00 | Depth to |1.00 |  | saturated zone | | saturated zone | | saturated zone | | saturated zone | |  | Restricted |0.46 | Seepage |0.53 | | | | |  | permeability | | | | | | | |  | | | | | | | | | 3083A: | | | | | | | | |  Wabash----------|Very limited | |Very limited | |Very limited | |Very limited | |Ver | Flooding |1.00 | Ponding |1.00 | Flooding |1.00 | Flooding |1.00 | P | Restricted |1.00 | Flooding |1.00 | Depth to |1.00 | Ponding |1.00 | D | permeability | | Depth to |1.00 | saturated zone | | Depth to |1.00 |  | Ponding |1.00 | saturated zone | | Ponding |1.00 | saturated zone | | T | Depth to |1.00 | | | Too clayey |1.00 | | | H | saturated zone | | | | | | | |  | | | | | | | | | 3107A: | | | | | | | | |  Sawmill---------|Very limited | |Very limited | |Very limited | |Very limited | |Ver | Flooding |1.00 | Flooding |1.00 | Flooding |1.00 | Flooding |1.00 | D | Depth to |1.00 | Depth to |1.00 | Depth to |1.00 | Depth to |1.00 |  | saturated zone | | saturated zone | | saturated zone | | saturated zone | | T | Restricted |0.46 | Seepage |0.53 | Too clayey |0.50 | | |  | permeability | | | | | | | |  | | | | | | | | | 3239A: | | | | | | | | |  Dorchester------|Very limited | |Very limited | |Very limited | |Very limited | |Not  | Flooding |1.00 | Flooding |1.00 | Flooding |1.00 | Flooding |1.00 |  | Restricted |0.46 | Seepage |0.53 | Depth to |1.00 | Depth to |1.00 |  | permeability | | | | saturated zone | | saturated zone | |  | Depth to |0.43 | | | | | | |  | saturated zone | | | | | | | |  | | | | | | | | | 3400A: | | | | | | | | |  Calco-----------|Very limited | |Very limited | |Very limited | |Very limited | |Ver | Flooding |1.00 | Ponding |1.00 | Flooding |1.00 | Flooding |1.00 | P | Ponding |1.00 | Flooding |1.00 | Depth to |1.00 | Ponding |1.00 | D | Depth to |1.00 | Depth to |1.00 | saturated zone | | Depth to |1.00 |  | saturated zone | | saturated zone | | Ponding |1.00 | saturated zone | | H | Restricted |0.46 | Seepage |0.53 | Too clayey |0.50 | | | T | permeability | | | | | | | |  | | | | | | | | | 
Table 15.--Sanitary Facilities--Continued _____________________________________________________________________________________________________________________________

 | | | | | Map symbol | Septic tank | Sewage lagoons | Trench sanitary | Area sanitary |  and soil name | absorption fields | | landfill | landfill | ___________________________________________________________________________________________________________ | Rating class and |Value| Rating class and |Value| Rating class and |Value| Rating class and |Value| Ra | limiting features | | limiting features | | limiting features | | limiting features | | lim_____________________________________________________________________________________________________________________________ | | | | | | | | | 3415A: | | | | | | | | |  Orion-----------|Very limited | |Very limited | |Very limited | |Very limited | |Ver | Flooding |1.00 | Flooding |1.00 | Flooding |1.00 | Flooding |1.00 | D | Depth to |1.00 | Depth to |1.00 | Depth to |1.00 | Depth to |1.00 |  | saturated zone | | saturated zone | | saturated zone | | saturated zone | |  | Restricted |0.46 | Seepage |0.53 | | | | |  | permeability | | | | | | | |  | | | | | | | | | 3428A: | | | | | | | | |  Coffeen---------|Very limited | |Very limited | |Very limited | |Very limited | |Ver | Flooding |1.00 | Flooding |1.00 | Flooding |1.00 | Flooding |1.00 | D | Depth to |1.00 | Depth to |1.00 | Depth to |1.00 | Depth to |1.00 |  | saturated zone | | saturated zone | | saturated zone | | saturated zone | | S | Restricted |0.46 | Seepage |1.00 | Seepage |1.00 | Seepage |1.00 |  | permeability | | | | | | | |  | | | | | | | | | 3451A: | | | | | | | | |  Lawson----------|Very limited | |Very limited | |Very limited | |Very limited | |Ver | Flooding |1.00 | Flooding |1.00 | Flooding |1.00 | Flooding |1.00 | D | Depth to |1.00 | Depth to |1.00 | Depth to |1.00 | Depth to |1.00 |  | saturated zone | | saturated zone | | saturated zone | | saturated zone | |  | Restricted |0.46 | Seepage |0.53 | | | | |  | permeability | | | | | | | |  | | | | | | | | | 3646L: | | | | | | | | |  Fluvaquents-----|Very limited | |Very limited | |Very limited | |Very limited | |Ver | Flooding |1.00 | Ponding |1.00 | Flooding |1.00 | Flooding |1.00 | P | Ponding |1.00 | Flooding |1.00 | Depth to |1.00 | Ponding |1.00 | D | Depth to |1.00 | Depth to |1.00 | Ponding |1.00 | Depth to |1.00 |  | saturated zone | | saturated zone | | | | saturated zone | |  | Restricted |0.46 | Seepage |0.53 | | | | |  | permeability | | | | | | | |  | | | | | | | | | 7076A: | | | | | | | | |  Otter-----------|Very limited | |Very limited | |Very limited | |Very limited | |Ver | Ponding |1.00 | Ponding |1.00 | Depth to |1.00 | Ponding |1.00 | P | Depth to |1.00 | Depth to |1.00 | saturated zone | | Depth to |1.00 | D | saturated zone | | saturated zone | | Ponding |1.00 | saturated zone | |  | Restricted |0.46 | Seepage |0.53 | Flooding |0.40 | Flooding |0.40 |  | permeability | | Flooding |0.40 | | | | |  | Flooding |0.40 | | | | | | |  | | | | | | | | | 
Table 15.--Sanitary Facilities--Continued _____________________________________________________________________________________________________________________________

 | | | | | Map symbol | Septic tank | Sewage lagoons | Trench sanitary | Area sanitary |  and soil name | absorption fields | | landfill | landfill | ___________________________________________________________________________________________________________ | Rating class and |Value| Rating class and |Value| Rating class and |Value| Rating class and |Value| Ra | limiting features | | limiting features | | limiting features | | limiting features | | lim_____________________________________________________________________________________________________________________________ | | | | | | | | | 7083A: | | | | | | | | |  Wabash----------|Very limited | |Very limited | |Very limited | |Very limited | |Ver | Restricted |1.00 | Ponding |1.00 | Depth to |1.00 | Ponding |1.00 | P | permeability | | Depth to |1.00 | saturated zone | | Depth to |1.00 | D | Ponding |1.00 | saturated zone | | Ponding |1.00 | saturated zone | |  | Depth to |1.00 | Flooding |0.40 | Too clayey |1.00 | Flooding |0.40 | T | saturated zone | | | | Flooding |0.40 | | | H | Flooding |0.40 | | | | | | |  | | | | | | | | | 7107A: | | | | | | | | |  Sawmill---------|Very limited | |Very limited | |Very limited | |Very limited | |Ver | Ponding |1.00 | Ponding |1.00 | Depth to |1.00 | Ponding |1.00 | P | Depth to |1.00 | Depth to |1.00 | saturated zone | | Depth to |1.00 | D | saturated zone | | saturated zone | | Ponding |1.00 | saturated zone | |  | Restricted |0.46 | Seepage |0.53 | Too clayey |0.50 | Flooding |0.40 | T | permeability | | Flooding |0.40 | Flooding |0.40 | | |  | Flooding |0.40 | | | | | | |  | | | | | | | | | 7239A: | | | | | | | | |  Dorchester------|Somewhat limited | |Somewhat limited | |Very limited | |Very limited | |Not  | Restricted |0.46 | Seepage |0.53 | Depth to |1.00 | Depth to |1.00 |  | permeability | | Flooding |0.40 | saturated zone | | saturated zone | |  | Depth to |0.43 | | | Flooding |0.40 | Flooding |0.40 |  | saturated zone | | | | | | | |  | Flooding |0.40 | | | | | | |  | | | | | | | | | 7304A: | | | | | | | | |  Landes----------|Very limited | |Very limited | |Very limited | |Very limited | |Ver | Filtering |1.00 | Seepage |1.00 | Depth to |1.00 | Depth to |1.00 | T | capacity | | Flooding |0.40 | saturated zone | | saturated zone | | S | Depth to |0.40 | | | Seepage |1.00 | Seepage |1.00 |  | saturated zone | | | | Too sandy |1.00 | Flooding |0.40 |  | Flooding |0.40 | | | Flooding |0.40 | | |  | | | | | | | | | 7415A: | | | | | | | | |  Orion-----------|Very limited | |Very limited | |Very limited | |Very limited | |Som | Depth to |1.00 | Depth to |1.00 | Depth to |1.00 | Depth to |1.00 | D | saturated zone | | saturated zone | | saturated zone | | saturated zone | |  | Restricted |0.46 | Seepage |0.53 | Flooding |0.40 | Flooding |0.40 |  | permeability | | Flooding |0.40 | | | | |  | Flooding |0.40 | | | | | | |  | | | | | | | | | 
Table 15.--Sanitary Facilities--Continued _____________________________________________________________________________________________________________________________

 | | | | | Map symbol | Septic tank | Sewage lagoons | Trench sanitary | Area sanitary |  and soil name | absorption fields | | landfill | landfill | ___________________________________________________________________________________________________________ | Rating class and |Value| Rating class and |Value| Rating class and |Value| Rating class and |Value| Ra | limiting features | | limiting features | | limiting features | | limiting features | | lim_____________________________________________________________________________________________________________________________ | | | | | | | | | 7428A: | | | | | | | | |  Coffeen---------|Very limited | |Very limited | |Very limited | |Very limited | |Ver | Depth to |1.00 | Depth to |1.00 | Depth to |1.00 | Depth to |1.00 | D | saturated zone | | saturated zone | | saturated zone | | saturated zone | |  | Restricted |0.46 | Seepage |1.00 | Seepage |1.00 | Seepage |1.00 | S | permeability | | Flooding |0.40 | Flooding |0.40 | Flooding |0.40 |  | Flooding |0.40 | | | | | | |  | | | | | | | | | 7451A: | | | | | | | | |  Lawson----------|Very limited | |Very limited | |Very limited | |Very limited | |Ver | Depth to |1.00 | Depth to |1.00 | Depth to |1.00 | Depth to |1.00 | D | saturated zone | | saturated zone | | saturated zone | | saturated zone | |  | Restricted |0.46 | Seepage |0.53 | Flooding |0.40 | Flooding |0.40 |  | permeability | | Flooding |0.40 | | | | |  | Flooding |0.40 | | | | | | |  | | | | | | | | | 7654A: | | | | | | | | |  Moline----------|Very limited | |Very limited | |Very limited | |Very limited | |Ver | Restricted |1.00 | Ponding |1.00 | Depth to |1.00 | Ponding |1.00 | P | permeability | | Depth to |1.00 | saturated zone | | Depth to |1.00 | D | Ponding |1.00 | saturated zone | | Ponding |1.00 | saturated zone | |  | Depth to |1.00 | Flooding |0.40 | Too clayey |1.00 | Flooding |0.40 | T | saturated zone | | | | Flooding |0.40 | | | H | Flooding |0.40 | | | | | | |  | | | | | | | | | 8107+: | | | | | | | | |  Sawmill---------|Very limited | |Very limited | |Very limited | |Very limited | |Ver | Flooding |1.00 | Flooding |1.00 | Flooding |1.00 | Flooding |1.00 | D | Depth to |1.00 | Depth to |1.00 | Depth to |1.00 | Depth to |1.00 |  | saturated zone | | saturated zone | | saturated zone | | saturated zone | | T | Restricted |0.46 | Seepage |0.53 | Too clayey |0.50 | | |  | permeability | | | | | | | |  | | | | | | | | | 8302A: | | | | | | | | |  Ambraw----------|Very limited | |Very limited | |Very limited | |Very limited | |Ver | Flooding |1.00 | Ponding |1.00 | Flooding |1.00 | Flooding |1.00 | P | Ponding |1.00 | Flooding |1.00 | Depth to |1.00 | Ponding |1.00 | D | Depth to |1.00 | Depth to |1.00 | saturated zone | | Depth to |1.00 |  | saturated zone | | saturated zone | | Ponding |1.00 | saturated zone | | T | Restricted |1.00 | Seepage |0.28 | Too clayey |0.50 | | |  | permeability | | | | | | | |  | | | | | | | | | 
Table 15.--Sanitary Facilities--Continued _____________________________________________________________________________________________________________________________

 | | | | | Map symbol | Septic tank | Sewage lagoons | Trench sanitary | Area sanitary |  and soil name | absorption fields | | landfill | landfill | ___________________________________________________________________________________________________________ | Rating class and |Value| Rating class and |Value| Rating class and |Value| Rating class and |Value| Ra | limiting features | | limiting features | | limiting features | | limiting features | | lim_____________________________________________________________________________________________________________________________ | | | | | | | | | 8400A: | | | | | | | | |  Calco-----------|Very limited | |Very limited | |Very limited | |Very limited | |Ver | Flooding |1.00 | Ponding |1.00 | Flooding |1.00 | Flooding |1.00 | P | Ponding |1.00 | Flooding |1.00 | Depth to |1.00 | Ponding |1.00 | D | Depth to |1.00 | Depth to |1.00 | saturated zone | | Depth to |1.00 |  | saturated zone | | saturated zone | | Ponding |1.00 | saturated zone | | H | Restricted |0.46 | Seepage |0.53 | Too clayey |0.50 | | | T | permeability | | | | | | | |  | | | | | | | | | 8404A: | | | | | | | | |  Titus-----------|Very limited | |Very limited | |Very limited | |Very limited | |Ver | Flooding |1.00 | Ponding |1.00 | Flooding |1.00 | Flooding |1.00 | P | Restricted |1.00 | Flooding |1.00 | Depth to |1.00 | Ponding |1.00 | D | permeability | | Depth to |1.00 | saturated zone | | Depth to |1.00 |  | Ponding |1.00 | saturated zone | | Ponding |1.00 | saturated zone | | H | Depth to |1.00 | | | Too clayey |0.50 | | | T | saturated zone | | | | | | | |  | | | | | | | | | _____________________________________________________________________________________________________________________________
Table 16.--Construction Materials (The information in this table indicates the dominant soil condition but does not eliminate the need fo

 investigation. The numbers in the value columns range from 0.00 to 1.00. For sand, the greater the  the likelihood that the bottom layer or thickest layer of the soil is a source. For the other mate the value, the greater the limitation. See text for further explanation of ratings in this table) _______________________________________________________________________________________________________ | | | | Map symbol | Potential as source | Potential as source | Potential as source of | P and soil name | of sand | of topsoil | reclamation material |  _________________________________________________________________________________ | Rating class |Value| Rating class and |Value| Rating class and |Value| Ra | | | limiting features | | limiting features | | li_______________________________________________________________________________________________________ | | | | | | | 8D2: | | | | | | |  Hickory-------------|Poor | |Fair | |Fair | |Poo | Thickest layer |0.00 | Slope |0.04 | Low content of |0.12 | L | Bottom layer |0.00 | Too clayey |0.57 | organic matter | | S | | | Rock fragments |0.88 | Too acid |0.88 |  | | | | | Too clayey |0.98 |  | | | | | | | 8D3: | | | | | | |  Hickory-------------|Poor | |Fair | |Fair | |Poo | Thickest layer |0.00 | Slope |0.04 | Low content of |0.12 | L | Bottom layer |0.00 | Too clayey |0.57 | organic matter | | S | | | Rock fragments |0.88 | Too acid |0.88 |  | | | | | Too clayey |0.98 |  | | | | | | | 8F: | | | | | | |  Hickory-------------|Poor | |Poor | |Fair | |Poo | Thickest layer |0.00 | Slope |0.00 | Low content of |0.12 | S | Bottom layer |0.00 | Too clayey |0.57 | organic matter | | L | | | Rock fragments |0.88 | Too acid |0.88 | S | | | | | Too clayey |0.98 |  | | | | | | | 8F3: | | | | | | |  Hickory-------------|Poor | |Poor | |Fair | |Poo | Thickest layer |0.00 | Slope |0.00 | Low content of |0.12 | S | Bottom layer |0.00 | Too clayey |0.57 | organic matter | | L | | | Rock fragments |0.88 | Too acid |0.88 | S | | | | | Too clayey |0.98 |  | | | | | | | 19C3: | | | | | | |  Sylvan--------------|Poor | |Fair | |Fair | |Poo | Thickest layer |0.00 | Too clayey |0.57 | Low content of |0.12 | L | Bottom layer |0.00 | | | organic matter | | S | | | | | Water erosion |0.68 |  | | | | | Carbonate content|0.97 |  | | | | | Too clayey |0.98 |  | | | | | | | 
Table 16.--Construction Materials--Continued _______________________________________________________________________________________________________

 | | | | Map symbol | Potential as source | Potential as source | Potential as source of | P and soil name | of sand | of topsoil | reclamation material |  _________________________________________________________________________________ | Rating class |Value| Rating class and |Value| Rating class and |Value| Ra | | | limiting features | | limiting features | | li_______________________________________________________________________________________________________ | | | | | | | 19D, 19D3: | | | | | | |  Sylvan--------------|Poor | |Fair | |Fair | |Poo | Thickest layer |0.00 | Slope |0.04 | Low content of |0.12 | L | Bottom layer |0.00 | Too clayey |0.57 | organic matter | |  | | | | | Water erosion |0.68 |  | | | | | Carbonate content|0.97 |  | | | | | Too clayey |0.98 |  | | | | | | | 19F: | | | | | | |  Sylvan--------------|Poor | |Poor | |Fair | |Poo | Thickest layer |0.00 | Slope |0.00 | Low content of |0.24 | S | Bottom layer |0.00 | Too clayey |0.60 | organic matter | | L | | | | | Water erosion |0.68 |  | | | | | Carbonate content|0.97 |  | | | | | Too clayey |0.98 |  | | | | | | | 19F3: | | | | | | |  Sylvan--------------|Poor | |Poor | |Fair | |Poo | Thickest layer |0.00 | Slope |0.00 | Low content of |0.12 | S | Bottom layer |0.00 | Too clayey |0.57 | organic matter | | L | | | | | Water erosion |0.68 |  | | | | | Carbonate content|0.97 |  | | | | | Too clayey |0.98 |  | | | | | | | 45A: | | | | | | |  Denny---------------|Poor | |Poor | |Fair | |Poo | Thickest layer |0.00 | Depth to |0.00 | Too clayey |0.02 | D | Bottom layer |0.00 | saturated zone | | Low content of |0.50 |  | | | Too clayey |0.01 | organic matter | | L | | | | | Water erosion |0.90 | S | | | | | Too acid |0.95 |  | | | | | | | 51A: | | | | | | |  Muscatune-----------|Poor | |Fair | |Fair | |Poo | Thickest layer |0.00 | Depth to |0.14 | Too acid |0.84 | L | Bottom layer |0.00 | saturated zone | | Too clayey |0.92 | D | | | Too clayey |0.67 | Low content of |0.92 |  | | | | | organic matter | | S | | | | | Water erosion |0.99 |  | | | | | | | 
Table 16.--Construction Materials--Continued _______________________________________________________________________________________________________

 | | | | Map symbol | Potential as source | Potential as source | Potential as source of | P and soil name | of sand | of topsoil | reclamation material |  _________________________________________________________________________________ | Rating class |Value| Rating class and |Value| Rating class and |Value| Ra | | | limiting features | | limiting features | | li_______________________________________________________________________________________________________ | | | | | | | 61A: | | | | | | |  Atterberry----------|Poor | |Fair | |Fair | |Poo | Thickest layer |0.00 | Depth to |0.14 | Low content of |0.18 | L | Bottom layer |0.00 | saturated zone | | organic matter | | D | | | Too clayey |0.55 | Too acid |0.54 |  | | | Too acid |0.98 | Water erosion |0.90 | S | | | | | Too clayey |0.92 |  | | | | | | | 68A: | | | | | | |  Sable---------------|Poor | |Poor | |Fair | |Poo | Thickest layer |0.00 | Depth to |0.00 | Low content of |0.68 | D | Bottom layer |0.00 | saturated zone | | organic matter | |  | | | Too clayey |0.98 | Too clayey |0.98 | L | | | | | Water erosion |0.99 | S | | | | | | | 86B: | | | | | | |  Osco----------------|Poor | |Fair | |Fair | |Poo | Thickest layer |0.00 | Too clayey |0.64 | Low content of |0.50 | L | Bottom layer |0.00 | | | organic matter | | S | | | | | Too acid |0.84 |  | | | | | Too clayey |0.98 |  | | | | | Water erosion |0.99 |  | | | | | | | 86C2: | | | | | | |  Osco----------------|Poor | |Fair | |Fair | |Poo | Thickest layer |0.00 | Too clayey |0.64 | Low content of |0.12 | L | Bottom layer |0.00 | | | organic matter | | S | | | | | Water erosion |0.68 |  | | | | | Too acid |0.84 |  | | | | | Too clayey |0.98 |  | | | | | | | 87A, 87C2: | | | | | | |  Dickinson-----------|Fair | |Good | |Fair | |Goo | Thickest layer |0.03 | | | Low content of |0.12 |  | Bottom layer |0.90 | | | organic matter | |  | | | | | Too acid |0.84 |  | | | | | Droughty |0.96 |  | | | | | | | 88A: | | | | | | |  Sparta--------------|Fair | |Poor | |Poor | |Goo | Thickest layer |0.67 | Too sandy |0.00 | Too sandy |0.00 |  | Bottom layer |0.90 | | | Wind erosion |0.00 |  | | | | | Low content of |0.12 |  | | | | | organic matter | |  | | | | | Too acid |0.74 |  | | | | | | | 
Table 16.--Construction Materials--Continued _______________________________________________________________________________________________________

 | | | | Map symbol | Potential as source | Potential as source | Potential as source of | P and soil name | of sand | of topsoil | reclamation material |  _________________________________________________________________________________ | Rating class |Value| Rating class and |Value| Rating class and |Value| Ra | | | limiting features | | limiting features | | li_______________________________________________________________________________________________________ | | | | | | | 172A: | | | | | | |  Hoopeston-----------|Fair | |Fair | |Fair | |Fai | Thickest layer |0.06 | Depth to |0.29 | Low content of |0.68 | D | Bottom layer |0.76 | saturated zone | | organic matter | |  | | | | | Too acid |0.97 |  | | | | | | | 212B: | | | | | | |  Thebes--------------|Fair | |Fair | |Fair | |Goo | Thickest layer |0.00 | Too clayey |0.65 | Low content of |0.12 |  | Bottom layer |0.22 | Too acid |0.98 | organic matter | |  | | | | | Too acid |0.54 |  | | | | | Water erosion |0.90 |  | | | | | Too clayey |0.99 |  | | | | | | | 250D: | | | | | | |  Velma---------------|Poor | |Fair | |Fair | |Poo | Thickest layer |0.00 | Slope |0.04 | Low content of |0.68 | L | Bottom layer |0.00 | Too clayey |0.67 | organic matter | | S | | | | | Too acid |0.88 |  | | | | | Carbonate content|0.97 |  | | | | | Too clayey |0.98 |  | | | | | | | 261A: | | | | | | |  Niota---------------|Poor | |Poor | |Poor | |Poo | Thickest layer |0.00 | Depth to |0.00 | Too clayey |0.00 | D | Bottom layer |0.00 | saturated zone | | Low content of |0.12 |  | | | Too clayey |0.00 | organic matter | | S | | | Too acid |0.76 | Too acid |0.20 |  | | | | | Water erosion |0.90 |  | | | | | | | 274B, 274B2, 274C2: | | | | | | |  Seaton--------------|Poor | |Good | |Fair | |Poo | Thickest layer |0.00 | | | Low content of |0.88 | L | Bottom layer |0.00 | | | organic matter | |  | | | | | Too acid |0.88 |  | | | | | Water erosion |0.90 |  | | | | | Carbonate content|0.97 |  | | | | | | | 274D2: | | | | | | |  Seaton--------------|Poor | |Fair | |Fair | |Poo | Thickest layer |0.00 | Slope |0.04 | Low content of |0.88 | L | Bottom layer |0.00 | | | organic matter | |  | | | | | Too acid |0.88 |  | | | | | Water erosion |0.90 |  | | | | | Carbonate content|0.97 |  | | | | | | | 
Table 16.--Construction Materials--Continued _______________________________________________________________________________________________________

 | | | | Map symbol | Potential as source | Potential as source | Potential as source of | P and soil name | of sand | of topsoil | reclamation material |  _________________________________________________________________________________ | Rating class |Value| Rating class and |Value| Rating class and |Value| Ra | | | limiting features | | limiting features | | li_______________________________________________________________________________________________________ | | | | | | | 275A: | | | | | | |  Joy-----------------|Poor | |Fair | |Fair | |Poo | Thickest layer |0.00 | Depth to |0.14 | Low content of |0.60 | L | Bottom layer |0.00 | saturated zone | | organic matter | | D | | | | | Water erosion |0.90 |  | | | | | Too acid |0.97 |  | | | | | | | 278A: | | | | | | |  Stronghurst---------|Poor | |Fair | |Fair | |Poo | Thickest layer |0.00 | Depth to |0.14 | Low content of |0.88 | L | Bottom layer |0.00 | saturated zone | | organic matter | | D | | | Too clayey |0.70 | Water erosion |0.90 |  | | | | | Too acid |0.97 | S | | | | | Too clayey |0.98 |  | | | | | | | 279A: | | | | | | |  Rozetta-------------|Poor | |Fair | |Fair | |Poo | Thickest layer |0.00 | Too clayey |0.60 | Low content of |0.24 | L | Bottom layer |0.00 | | | organic matter | | S | | | | | Water erosion |0.68 |  | | | | | Too acid |0.68 |  | | | | | Too clayey |0.98 |  | | | | | | | 279B: | | | | | | |  Rozetta-------------|Poor | |Fair | |Fair | |Poo | Thickest layer |0.00 | Too clayey |0.57 | Low content of |0.12 | L | Bottom layer |0.00 | | | organic matter | | S | | | | | Water erosion |0.68 |  | | | | | Too acid |0.68 |  | | | | | Too clayey |0.98 |  | | | | | | | 280B: | | | | | | |  Fayette-------------|Poor | |Fair | |Fair | |Poo | Thickest layer |0.00 | Too clayey |0.64 | Low content of |0.50 | L | Bottom layer |0.00 | | | organic matter | | S | | | | | Water erosion |0.68 |  | | | | | Too acid |0.68 |  | | | | | Too clayey |0.98 |  | | | | | | | 
Table 16.--Construction Materials--Continued _______________________________________________________________________________________________________

 | | | | Map symbol | Potential as source | Potential as source | Potential as source of | P and soil name | of sand | of topsoil | reclamation material |  _________________________________________________________________________________ | Rating class |Value| Rating class and |Value| Rating class and |Value| Ra | | | limiting features | | limiting features | | li_______________________________________________________________________________________________________ | | | | | | | 280B2, 280C2, 280C3: | | | | | | |  Fayette-------------|Poor | |Fair | |Fair | |Poo | Thickest layer |0.00 | Too clayey |0.57 | Low content of |0.12 | L | Bottom layer |0.00 | | | organic matter | | S | | | | | Too acid |0.68 |  | | | | | Water erosion |0.90 |  | | | | | Too clayey |0.98 |  | | | | | | | 317A: | | | | | | |  Millsdale-----------|Poor | |Poor | |Poor | |Poo | Thickest layer |0.00 | Depth to |0.00 | Too clayey |0.00 | D | Bottom layer |0.00 | saturated zone | | Droughty |0.40 | D | | | Too clayey |0.00 | Depth to bedrock |0.58 |  | | | Depth to bedrock |0.58 | | | L | | | | | | | S | | | | | | | 430A, 430B: | | | | | | |  Raddle--------------|Poor | |Good | |Fair | |Fai | Thickest layer |0.00 | | | Water erosion |0.68 | L | Bottom layer |0.00 | | | | |  | | | | | | | 525A: | | | | | | |  Joslin--------------|Poor | |Good | |Good | |Poo | Thickest layer |0.00 | | | | | L | Bottom layer |0.00 | | | | | D | | | | | | | S | | | | | | | 567C2: | | | | | | |  Elkhart-------------|Poor | |Fair | |Fair | |Poo | Thickest layer |0.00 | Too clayey |0.57 | Low content of |0.01 | L | Bottom layer |0.00 | | | organic matter | |  | | | | | Water erosion |0.68 |  | | | | | Carbonate content|0.68 |  | | | | | Too clayey |0.98 |  | | | | | | | 567D2: | | | | | | |  Elkhart-------------|Poor | |Fair | |Fair | |Poo | Thickest layer |0.00 | Slope |0.04 | Low content of |0.01 | L | Bottom layer |0.00 | Too clayey |0.57 | organic matter | |  | | | | | Water erosion |0.68 |  | | | | | Carbonate content|0.68 |  | | | | | Too clayey |0.98 |  | | | | | | | 
Table 16.--Construction Materials--Continued _______________________________________________________________________________________________________

 | | | | Map symbol | Potential as source | Potential as source | Potential as source of | P and soil name | of sand | of topsoil | reclamation material |  _________________________________________________________________________________ | Rating class |Value| Rating class and |Value| Rating class and |Value| Ra | | | limiting features | | limiting features | | li_______________________________________________________________________________________________________ | | | | | | | 570B: | | | | | | |  Martinsville--------|Fair | |Good | |Fair | |Goo | Thickest layer |0.00 | | | Low content of |0.12 |  | Bottom layer |0.06 | | | organic matter | |  | | | | | Carbonate content|0.68 |  | | | | | Too acid |0.97 |  | | | | | | | 570C3: | | | | | | |  Martinsville--------|Fair | |Fair | |Fair | |Goo | Thickest layer |0.00 | Too clayey |0.57 | Low content of |0.02 |  | Bottom layer |0.06 | Rock fragments |0.88 | organic matter | |  | | | | | Too acid |0.84 |  | | | | | Too clayey |0.98 |  | | | | | | | 570D3: | | | | | | |  Martinsville--------|Fair | |Fair | |Fair | |Goo | Thickest layer |0.00 | Slope |0.04 | Low content of |0.02 |  | Bottom layer |0.06 | Too clayey |0.57 | organic matter | |  | | | Rock fragments |0.88 | Too acid |0.84 |  | | | | | Too clayey |0.98 |  | | | | | | | 647A: | | | | | | |  Lawler--------------|Fair | |Fair | |Fair | |Fai | Thickest layer |0.00 | Depth to |0.14 | Low content of |0.12 | D | Bottom layer |0.86 | saturated zone | | organic matter | |  | | | Hard to reclaim |0.82 | Too acid |0.84 |  | | | Rock fragments |0.97 | | |  | | | | | | | 671A, 671B: | | | | | | |  Biggsville----------|Poor | |Good | |Fair | |Poo | Thickest layer |0.00 | | | Water erosion |0.90 | L | Bottom layer |0.00 | | | Carbonate content|0.97 |  | | | | | | | 675A: | | | | | | |  Greenbush-----------|Poor | |Fair | |Fair | |Poo | Thickest layer |0.00 | Too clayey |0.70 | Low content of |0.88 | L | Bottom layer |0.00 | | | organic matter | | S | | | | | Water erosion |0.90 |  | | | | | Too acid |0.97 |  | | | | | Too clayey |0.98 |  | | | | | | | 
Table 16.--Construction Materials--Continued _______________________________________________________________________________________________________

 | | | | Map symbol | Potential as source | Potential as source | Potential as source of | P and soil name | of sand | of topsoil | reclamation material |  _________________________________________________________________________________ | Rating class |Value| Rating class and |Value| Rating class and |Value| Ra | | | limiting features | | limiting features | | li_______________________________________________________________________________________________________ | | | | | | | 675B: | | | | | | |  Greenbush-----------|Poor | |Fair | |Fair | |Poo | Thickest layer |0.00 | Too clayey |0.70 | Low content of |0.88 | L | Bottom layer |0.00 | | | organic matter | | S | | | | | Too acid |0.97 |  | | | | | Too clayey |0.98 |  | | | | | Water erosion |0.99 |  | | | | | | | 689B: | | | | | | |  Coloma--------------|Fair | |Poor | |Poor | |Goo | Thickest layer |0.76 | Too sandy |0.00 | Too sandy |0.00 |  | Bottom layer |0.76 | | | Wind erosion |0.00 |  | | | | | Low content of |0.12 |  | | | | | organic matter | |  | | | | | Droughty |0.36 |  | | | | | Too acid |0.88 |  | | | | | | | 689D: | | | | | | |  Coloma--------------|Fair | |Poor | |Poor | |Goo | Bottom layer |0.76 | Too sandy |0.00 | Wind erosion |0.00 |  | Thickest layer |0.83 | Slope |0.63 | Too sandy |0.00 |  | | | | | Low content of |0.12 |  | | | | | organic matter | |  | | | | | Droughty |0.31 |  | | | | | Too acid |0.88 |  | | | | | | | 705A: | | | | | | |  Buckhart------------|Poor | |Fair | |Fair | |Poo | Thickest layer |0.00 | Depth to |0.98 | Low content of |0.92 | L | Bottom layer |0.00 | saturated zone | | organic matter | | S | | | | | Water erosion |0.99 | D | | | | | | |  | | | | | | | 727A: | | | | | | |  Waukee--------------|Fair | |Fair | |Fair | |Goo | Thickest layer |0.00 | Rock fragments |0.97 | Low content of |0.50 |  | Bottom layer |0.86 | Hard to reclaim |0.98 | organic matter | |  | | | | | Too acid |0.74 |  | | | | | | | 
Table 16.--Construction Materials--Continued ________________________________________________________________________________________________________

 | | | | Map symbol | Potential as source | Potential as source | Potential as source of | Po and soil name | of sand | of topsoil | reclamation material |  __________________________________________________________________________________ | Rating class |Value| Rating class and |Value| Rating class and |Value| Rat | | | limiting features | | limiting features | | lim________________________________________________________________________________________________________ | | | | | | | 741F: | | | | | | |  Oakville------------|Good | |Poor | |Poor | |Fair  | Thickest layer |0.87 | Slope |0.00 | Too sandy |0.00 | Sl | Bottom layer |0.99 | Too sandy |0.00 | Wind erosion |0.00 |  | | | | | Low content of |0.12 |  | | | | | organic matter | |  | | | | | Droughty |0.29 |  | | | | | Too acid |0.88 |  | | | | | | | 763A, 763B: | | | | | | |  Joslin--------------|Poor | |Good | |Fair | |Poor  | Thickest layer |0.00 | | | Low content of |0.88 | Lo | Bottom layer |0.00 | | | organic matter | |  | | | | | | | 764A: | | | | | | |  Coyne---------------|Fair | |Good | |Good | |Good  | Bottom layer |0.00 | | | | |  | Thickest layer |0.07 | | | | |  | | | | | | | 764C: | | | | | | |  Coyne---------------|Fair | |Good | |Good | |Good  | Thickest layer |0.08 | | | | |  | Bottom layer |0.97 | | | | |  | | | | | | | 774A: | | | | | | |  Saude---------------|Fair | |Fair | |Fair | |Good  | Thickest layer |0.00 | Rock fragments |0.50 | Low content of |0.12 |  | Bottom layer |0.83 | Hard to reclaim |0.82 | organic matter | |  | | | | | Too acid |0.74 |  | | | | | | | 800C: | | | | | | |  Psamments-----------|Good | |Poor | |Poor | |Good  | | | Too sandy |0.00 | Too sandy |0.00 |  | | | Slope |0.91 | Wind erosion |0.00 |  | | | | | Low content of |0.12 |  | | | | | organic matter | |  | | | | | Too acid |0.88 |  | | | | | Droughty |0.98 |  | | | | | | | 802B: | | | | | | |  Orthents------------|Poor | |Good | |Fair | |Poor  | Thickest layer |0.00 | | | Low content of |0.68 | Lo | Bottom layer |0.00 | | | organic matter | | Sh | | | | | Water erosion |0.90 |  | | | | | | | 864: | | | | | | |  Pits, quarries------|Not rated | |Not rated | |Not rated | |Not  | | | | | | |  | | | | | | | 
Table 16.--Construction Materials--Continued _______________________________________________________________________________________________________

 | | | | Map symbol | Potential as source | Potential as source | Potential as source of | P and soil name | of sand | of topsoil | reclamation material |  _________________________________________________________________________________ | Rating class |Value| Rating class and |Value| Rating class and |Value| Ra | | | limiting features | | limiting features | | li_______________________________________________________________________________________________________ | | | | | | | 865: | | | | | | |  Pits, gravel--------|Not rated | |Not rated | |Not rated | |Not  | | | | | | |  | | | | | | | 898F3: | | | | | | |  Hickory-------------|Poor | |Poor | |Fair | |Poo | Thickest layer |0.00 | Slope |0.00 | Low content of |0.12 | S | Bottom layer |0.00 | Too clayey |0.57 | organic matter | | L | | | Rock fragments |0.88 | Too acid |0.88 | S | | | | | Too clayey |0.98 |  | | | | | | |  Sylvan--------------|Poor | |Poor | |Fair | |Poo | Thickest layer |0.00 | Slope |0.00 | Low content of |0.12 | S | Bottom layer |0.00 | Too clayey |0.57 | organic matter | | L | | | | | Water erosion |0.68 |  | | | | | Carbonate content|0.97 |  | | | | | Too clayey |0.98 |  | | | | | | | 898G: | | | | | | |  Hickory-------------|Poor | |Poor | |Fair | |Poo | Thickest layer |0.00 | Slope |0.00 | Low content of |0.12 | S | Bottom layer |0.00 | Too clayey |0.57 | organic matter | | L | | | Rock fragments |0.88 | Too acid |0.88 |  | | | | | Too clayey |0.98 |  | | | | | | |  Sylvan--------------|Poor | |Poor | |Fair | |Poo | Thickest layer |0.00 | Slope |0.00 | Low content of |0.24 | S | Bottom layer |0.00 | Too clayey |0.60 | organic matter | | L | | | | | Water erosion |0.68 |  | | | | | Carbonate content|0.97 |  | | | | | Too clayey |0.98 |  | | | | | | | 913D2: | | | | | | |  Marseilles----------|Poor | |Fair | |Fair | |Poo | Thickest layer |0.00 | Slope |0.04 | Low content of |0.12 | D | Bottom layer |0.00 | Too clayey |0.39 | organic matter | | L | | | Depth to bedrock |0.58 | Too acid |0.32 | S | | | Too acid |0.88 | Depth to bedrock |0.58 |  | | | | | Too clayey |0.68 |  | | | | | Droughty |0.73 |  | | | | | Water erosion |0.99 |  | | | | | | |  Hickory-------------|Poor | |Fair | |Fair | |Poo | Thickest layer |0.00 | Slope |0.04 | Low content of |0.12 | L | Bottom layer |0.00 | Too clayey |0.57 | organic matter | | S | | | Rock fragments |0.88 | Too acid |0.88 |  | | | | | Too clayey |0.98 |  | | | | | | | 
Table 16.--Construction Materials--Continued _______________________________________________________________________________________________________

 | | | | Map symbol | Potential as source | Potential as source | Potential as source of | P and soil name | of sand | of topsoil | reclamation material |  _________________________________________________________________________________ | Rating class |Value| Rating class and |Value| Rating class and |Value| Ra | | | limiting features | | limiting features | | li_______________________________________________________________________________________________________ | | | | | | | 913F: | | | | | | |  Marseilles----------|Poor | |Poor | |Fair | |Poo | Thickest layer |0.00 | Slope |0.00 | Depth to bedrock |0.58 | D | Bottom layer |0.00 | Too clayey |0.49 | Too clayey |0.68 | L | | | Depth to bedrock |0.58 | Too acid |0.68 | S | | | | | Low content of |0.88 | S | | | | | organic matter | |  | | | | | Water erosion |0.90 |  | | | | | Droughty |0.99 |  | | | | | | |  Hickory-------------|Poor | |Poor | |Fair | |Poo | Thickest layer |0.00 | Slope |0.00 | Low content of |0.12 | S | Bottom layer |0.00 | Too clayey |0.57 | organic matter | | L | | | Rock fragments |0.88 | Too acid |0.88 | S | | | | | Too clayey |0.98 |  | | | | | | | 913G: | | | | | | |  Marseilles----------|Poor | |Poor | |Fair | |Poo | Thickest layer |0.00 | Slope |0.00 | Low content of |0.50 | D | Bottom layer |0.00 | Too clayey |0.44 | organic matter | | S | | | Depth to bedrock |0.58 | Depth to bedrock |0.58 | L | | | | | Too clayey |0.68 | S | | | | | Too acid |0.68 |  | | | | | Droughty |0.88 |  | | | | | Water erosion |0.99 |  | | | | | | |  Hickory-------------|Poor | |Poor | |Fair | |Poo | Thickest layer |0.00 | Slope |0.00 | Low content of |0.12 | S | Bottom layer |0.00 | Too clayey |0.57 | organic matter | | L | | | Rock fragments |0.97 | Too acid |0.88 | S | | | | | Too clayey |0.98 |  | | | | | | | 917C2: | | | | | | |  Oakville------------|Good | |Poor | |Poor | |Goo | Thickest layer |0.90 | Too sandy |0.00 | Too sandy |0.00 |  | Bottom layer |0.99 | | | Wind erosion |0.00 |  | | | | | Low content of |0.12 |  | | | | | organic matter | |  | | | | | Droughty |0.62 |  | | | | | Too acid |0.88 |  | | | | | | |  Tell----------------|Fair | |Good | |Fair | |Goo | Thickest layer |0.00 | | | Low content of |0.12 |  | Bottom layer |0.43 | | | organic matter | |  | | | | | Too acid |0.84 |  | | | | | Water erosion |0.90 |  | | | | | | | 
Table 16.--Construction Materials--Continued _______________________________________________________________________________________________________

 | | | | Map symbol | Potential as source | Potential as source | Potential as source of | P and soil name | of sand | of topsoil | reclamation material |  _________________________________________________________________________________ | Rating class |Value| Rating class and |Value| Rating class and |Value| Ra | | | limiting features | | limiting features | | li_______________________________________________________________________________________________________ | | | | | | | 917D2: | | | | | | |  Oakville------------|Good | |Poor | |Poor | |Goo | Thickest layer |0.54 | Too sandy |0.00 | Too sandy |0.00 |  | Bottom layer |0.99 | Slope |0.04 | Wind erosion |0.00 |  | | | | | Low content of |0.12 |  | | | | | organic matter | |  | | | | | Droughty |0.42 |  | | | | | Too acid |0.88 |  | | | | | | |  Tell----------------|Fair | |Fair | |Fair | |Goo | Thickest layer |0.00 | Slope |0.04 | Low content of |0.12 |  | Bottom layer |0.90 | | | organic matter | |  | | | | | Too acid |0.84 |  | | | | | Water erosion |0.90 |  | | | | | | | 943D2: | | | | | | |  Seaton--------------|Poor | |Fair | |Fair | |Poo | Thickest layer |0.00 | Slope |0.04 | Water erosion |0.68 | L | Bottom layer |0.00 | | | Low content of |0.88 |  | | | | | organic matter | |  | | | | | Too acid |0.88 |  | | | | | Carbonate content|0.97 |  | | | | | | |  Timula--------------|Poor | |Fair | |Fair | |Goo | Thickest layer |0.00 | Slope |0.04 | Low content of |0.24 |  | Bottom layer |0.00 | | | organic matter | |  | | | | | Water erosion |0.37 |  | | | | | Carbonate content|0.92 |  | | | | | | | 943F2: | | | | | | |  Seaton--------------|Poor | |Poor | |Fair | |Poo | Thickest layer |0.00 | Slope |0.00 | Low content of |0.88 | S | Bottom layer |0.00 | | | organic matter | | L | | | | | Too acid |0.88 |  | | | | | Water erosion |0.90 |  | | | | | Carbonate content|0.97 |  | | | | | | |  Timula--------------| | | Poor | |Fair | |Poo |Poor | | Slope |0.00 | Low content of |0.24 | S | Thickest layer |0.00 | | | organic matter | |  | Bottom layer |0.00 | | | Water erosion |0.37 |  | | | | | Carbonate content|0.92 |  | | | | | | | 
Table 16.--Construction Materials--Continued _______________________________________________________________________________________________________

 | | | | Map symbol | Potential as source | Potential as source | Potential as source of | P and soil name | of sand | of topsoil | reclamation material |  _________________________________________________________________________________ | Rating class |Value| Rating class and |Value| Rating class and |Value| Ra | | | limiting features | | limiting features | | li_______________________________________________________________________________________________________ | | | | | | | 944D2: | | | | | | |  Velma---------------|Poor | |Fair | |Fair | |Poo | Thickest layer |0.00 | Slope |0.04 | Low content of |0.68 | L | Bottom layer |0.00 | | | organic matter | | S | | | | | Too acid |0.88 |  | | | | | Carbonate content|0.97 |  | | | | | | |  Coatsburg-----------|Poor | |Poor | |Poor | |Poo | Thickest layer |0.00 | Depth to |0.00 | Too clayey |0.00 | D | Bottom layer |0.00 | saturated zone | | Low content of |0.50 |  | | | Too clayey |0.00 | organic matter | | L | | | Slope |0.04 | Too acid |0.84 | S | | | | | Water erosion |0.99 |  | | | | | | | 946D3: | | | | | | |  Hickory-------------|Poor | |Fair | |Fair | |Poo | Thickest layer |0.00 | Slope |0.04 | Low content of |0.12 | L | Bottom layer |0.00 | Too clayey |0.57 | organic matter | | S | | | Rock fragments |0.88 | Too acid |0.88 |  | | | | | Too clayey |0.98 |  | | | | | | |  Atlas---------------|Poor | |Poor | |Poor | |Poo | Thickest layer |0.00 | Too clayey |0.00 | Too clayey |0.00 | L | Bottom layer |0.00 | Depth to |0.04 | Low content of |0.50 | D | | | saturated zone | | organic matter | |  | | | Slope |0.04 | Too acid |0.88 | S | | | | | Water erosion |0.99 |  | | | | | | | 946F3: | | | | | | |  Hickory-------------|Poor | |Poor | |Fair | |Poo | Thickest layer |0.00 | Slope |0.00 | Low content of |0.12 | S | Bottom layer |0.00 | Too clayey |0.57 | organic matter | | L | | | Rock fragments |0.88 | Too acid |0.88 | S | | | | | Too clayey |0.98 |  | | | | | | |  Atlas---------------|Poor | |Poor | |Poor | |Poo | Thickest layer |0.00 | Slope |0.00 | Too clayey |0.00 | L | Bottom layer |0.00 | Too clayey |0.00 | Low content of |0.50 | S | | | Depth to |0.04 | organic matter | | D | | | saturated zone | | Too acid |0.88 |  | | | | | Water erosion |0.99 | S | | | | | | | 
Table 16.--Construction Materials--Continued _______________________________________________________________________________________________________

 | | | | Map symbol | Potential as source | Potential as source | Potential as source of | P and soil name | of sand | of topsoil | reclamation material |  _________________________________________________________________________________ | Rating class |Value| Rating class and |Value| Rating class and |Value| Ra | | | limiting features | | limiting features | | li_______________________________________________________________________________________________________ | | | | | | | 959G: | | | | | | |  Strawn--------------|Poor | |Poor | |Fair | |Poo | Bottom layer |0.00 | Slope |0.00 | Low content of |0.24 | S | Thickest layer |0.00 | Rock fragments |0.88 | organic matter | |  | | | Carbonate content|0.97 | Carbonate content|0.97 |  | | | | | | |  Chute---------------|Good | |Poor | |Poor | |Poo | Bottom layer |0.26 | Slope |0.00 | Too sandy |0.00 | S | Thickest layer |0.99 | Too sandy |0.00 | Wind erosion |0.00 |  | | | Carbonate content|0.92 | Low content of |0.12 |  | | | | | organic matter | |  | | | | | Droughty |0.75 |  | | | | | Carbonate content|0.92 |  | | | | | | | 960D2: |Poor | | | | | |  Hickory-------------| Thickest layer |0.00 |Fair | |Fair | |Poo | Bottom layer |0.00 | Slope |0.04 | Low content of |0.12 | L | | | Too clayey |0.57 | organic matter | | S | | | Rock fragments |0.88 | Too acid |0.88 |  | | | | | Too clayey |0.98 |  | | | | | | |  Sylvan--------------|Poor | |Fair | |Fair | |Poo | Thickest layer |0.00 | Slope |0.04 | Low content of |0.12 | L | Bottom layer |0.00 | Too clayey |0.58 | organic matter | |  | | | | | Water erosion |0.68 |  | | | | | Carbonate content|0.97 |  | | | | | Too clayey |0.99 |  | | | | | | |  Fayette-------------|Poor | |Fair | |Fair | |Poo | Thickest layer |0.00 | Slope |0.04 | Low content of |0.12 | L | Bottom layer |0.00 | Too clayey |0.57 | organic matter | | S | | | | | Too acid |0.68 |  | | | | | Water erosion |0.90 |  | | | | | Too clayey |0.98 |  | | | | | | | 960D3: | | | | | | |  Hickory-------------|Poor | |Fair | |Fair | |Poo | Thickest layer |0.00 | Slope |0.04 | Low content of |0.12 | L | Bottom layer |0.00 | Too clayey |0.57 | organic matter | | S | | | Rock fragments |0.88 | Too acid |0.88 |  | | | | | Too clayey |0.98 |  | | | | | | | 
Table 16.--Construction Materials--Continued ________________________________________________________________________________________________________

 | | | | Map symbol | Potential as source | Potential as source | Potential as source of | Po and soil name | of sand | of topsoil | reclamation material |  __________________________________________________________________________________ | Rating class |Value| Rating class and |Value| Rating class and |Value| Rat | | | limiting features | | limiting features | | lim________________________________________________________________________________________________________ | | | | | | | 960D3: | | | | | | |  Sylvan--------------|Poor | |Fair | |Fair | |Poor  | Thickest layer |0.00 | Slope |0.04 | Low content of |0.12 | Lo | Bottom layer |0.00 | Too clayey |0.57 | organic matter | |  | | | | | Water erosion |0.68 |  | | | | | Carbonate content|0.97 |  | | | | | Too clayey |0.98 |  | | | | | | |  Fayette-------------|Poor | |Fair | |Fair | |Poor  | Thickest layer |0.00 | Slope |0.04 | Low content of |0.12 | Lo | Bottom layer |0.00 | Too clayey |0.57 | organic matter | | Sh | | | | | Water erosion |0.68 |  | | | | | Too acid |0.68 |  | | | | | Too clayey |0.98 |  | | | | | | | 960F: | | | | | | |  Hickory-------------|Poor | |Poor | |Fair | |Poor  | Thickest layer |0.00 | Slope |0.00 | Low content of |0.12 | Sl | Bottom layer |0.00 | Too clayey |0.57 | organic matter | | Lo | | | Rock fragments |0.88 | Too acid |0.88 | Sh | | | | | Too clayey |0.98 |  | | | | | | |  Sylvan--------------|Poor | |Poor | |Fair | |Poor  | Thickest layer |0.00 | Slope |0.00 | Low content of |0.24 | Sl | Bottom layer |0.00 | Too clayey |0.60 | organic matter | | Lo | | | | | Water erosion |0.68 |  | | | | | Carbonate content|0.97 |  | | | | | Too clayey |0.98 |  | | | | | | |  Fayette-------------|Poor | |Poor | |Fair | |Poor  | Thickest layer |0.00 | Slope |0.00 | Low content of |0.50 | Lo | Bottom layer |0.00 | Too clayey |0.64 | organic matter | | Sl | | | | | Too acid |0.68 | Sh | | | | | Water erosion |0.90 |  | | | | | Too clayey |0.98 |  | | | | | | | 961A: | | | | | | |  Burkhardt-----------|Fair | |Poor | |Poor | |Good  | Thickest layer |0.09 | Too sandy |0.00 | Too sandy |0.00 |  | Bottom layer |0.90 | Rock fragments |0.00 | Low content of |0.12 |  | | | Hard to reclaim |0.68 | organic matter | |  | | | | | Droughty |0.49 |  | | | | | Too acid |0.84 |  | | | | | | | 
Table 16.--Construction Materials--Continued _______________________________________________________________________________________________________

 | | | | Map symbol | Potential as source | Potential as source | Potential as source of | P and soil name | of sand | of topsoil | reclamation material |  _________________________________________________________________________________ | Rating class |Value| Rating class and |Value| Rating class and |Value| Ra | | | limiting features | | limiting features | | li_______________________________________________________________________________________________________ | | | | | | | 961A: | | | | | | |  Saude---------------|Fair | |Fair | |Fair | |Goo | Thickest layer |0.00 | Rock fragments |0.50 | Low content of |0.12 |  | Bottom layer |0.83 | Hard to reclaim |0.82 | organic matter | |  | | | | | Too acid |0.74 |  | | | | | | | 962F: | | | | | | |  Sylvan--------------|Poor | |Poor | |Fair | |Poo | Thickest layer |0.00 | Slope |0.00 | Low content of |0.24 | S | Bottom layer |0.00 | Too clayey |0.60 | organic matter | | L | | | | | Water erosion |0.68 |  | | | | | Carbonate content|0.97 |  | | | | | Too clayey |0.98 |  | | | | | | |  Bold----------------|Poor | |Poor | |Fair | |Poo | Thickest layer |0.00 | Slope |0.00 | Low content of |0.12 | S | Bottom layer |0.00 | Carbonate content|0.32 | organic matter | | L | | | | | Carbonate content|0.32 |  | | | | | Water erosion |0.37 |  | | | | | | | 1076A: | | | | | | |  Otter---------------|Poor | |Poor | |Fair | |Poo | Thickest layer |0.00 | Depth to |0.00 | Water erosion |0.68 | D | Bottom layer |0.00 | saturated zone | | | |  | | | | | | | L | | | | | | | 1082A: | | | | | | |  Millington----------|Poor | |Poor | |Fair | |Poo | Thickest layer |0.00 | Depth to |0.00 | Carbonate content|0.92 | D | Bottom layer |0.00 | saturated zone | | | |  | | | | | | | L | | | | | | | S | | | | | | | 1107A: | | | | | | |  Sawmill-------------|Poor | |Poor | |Fair | |Poo | Thickest layer |0.00 | Depth to |0.00 | Too clayey |0.98 | D | Bottom layer |0.00 | saturated zone | | | |  | | | Too clayey |0.98 | | | L | | | | | | | S | | | | | | | 1334A: | | | | | | |  Birds---------------|Poor | |Poor | |Fair | |Poo | Thickest layer |0.00 | Depth to |0.00 | Water erosion |0.68 | D | Bottom layer |0.00 | saturated zone | | Low content of |0.88 |  | | | | | organic matter | | L | | | | | | | S | | | | | | | 
Table 16.--Construction Materials--Continued _______________________________________________________________________________________________________

 | | | | Map symbol | Potential as source | Potential as source | Potential as source of | P and soil name | of sand | of topsoil | reclamation material |  _________________________________________________________________________________ | Rating class |Value| Rating class and |Value| Rating class and |Value| Ra | | | limiting features | | limiting features | | li_______________________________________________________________________________________________________ | | | | | | | 1400A: | | | | | | |  Calco---------------|Poor | |Poor | |Fair | |Poo | Thickest layer |0.00 | Depth to |0.00 | Too clayey |0.08 | D | Bottom layer |0.00 | saturated zone | | Carbonate content|0.97 |  | | | Too clayey |0.08 | | | L | | | Carbonate content|0.97 | | | S | | | | | | | 1654A: | | | | | | |  Moline--------------|Poor | |Poor | |Poor | |Poo | Thickest layer |0.00 | Too clayey |0.00 | Too clayey |0.00 | D | Bottom layer |0.00 | Depth to |0.00 | Low content of |0.12 |  | | | saturated zone | | organic matter | | S | | | | | Carbonate content|0.92 | L | | | | | | | 3074A: | | | | | | |  Radford-------------|Poor | |Fair | |Fair | |Poo | Thickest layer |0.00 | Depth to |0.14 | Low content of |0.50 | L | Bottom layer |0.00 | saturated zone | | organic matter | | D | | | | | Water erosion |0.68 |  | | | | | | | 3076A: | | | | | | |  Otter---------------|Poor | |Poor | |Fair | |Poo | Thickest layer |0.00 | Depth to |0.00 | Water erosion |0.68 | D | Bottom layer |0.00 | saturated zone | | | |  | | | | | | | L | | | | | | | 3082A: | | | | | | |  Millington----------|Poor | |Poor | |Fair | |Poo | Thickest layer |0.00 | Depth to |0.00 | Carbonate content|0.92 | D | Bottom layer |0.00 | saturated zone | | | |  | | | | | | | L | | | | | | | S | | | | | | | 3083A: | | | | | | |  Wabash--------------|Poor | |Poor | |Poor | |Poo | Thickest layer |0.00 | Too clayey |0.00 | Too clayey |0.00 | D | Bottom layer |0.00 | Depth to |0.00 | Too acid |0.97 |  | | | saturated zone | | | | S | | | | | | | L | | | | | | | 3107A: | | | | | | |  Sawmill-------------|Poor | |Poor | |Fair | |Poo | Thickest layer |0.00 | Depth to |0.00 | Too clayey |0.98 | L | Bottom layer |0.00 | saturated zone | | | | D | | | Too clayey |0.98 | | |  | | | | | | | S | | | | | | | 
Table 16.--Construction Materials--Continued _______________________________________________________________________________________________________

 | | | | Map symbol | Potential as source | Potential as source | Potential as source of | P and soil name | of sand | of topsoil | reclamation material |  _________________________________________________________________________________ | Rating class |Value| Rating class and |Value| Rating class and |Value| Ra | | | limiting features | | limiting features | | li_______________________________________________________________________________________________________ | | | | | | | 3239A: | | | | | | |  Dorchester----------|Poor | |Fair | |Fair | |Poo | Thickest layer |0.00 | Carbonate content|0.97 | Water erosion |0.68 | L | Bottom layer |0.00 | | | Carbonate content|0.97 | S | | | | | | | 3400A: | | | | | | |  Calco---------------|Poor | |Poor | |Fair | |Poo | Thickest layer |0.00 | Depth to |0.00 | Too clayey |0.08 | D | Bottom layer |0.00 | saturated zone | | Carbonate content|0.97 |  | | | Too clayey |0.08 | | | L | | | Carbonate content|0.97 | | | S | | | | | | | 3415A: | | | | | | |  Orion---------------|Poor | |Fair | |Fair | |Poo | Thickest layer |0.00 | Depth to |0.14 | Water erosion |0.90 | L | Bottom layer |0.00 | saturated zone | | | | D | | | | | | |  | | | | | | | 3428A: | | | | | | |  Coffeen-------------|Poor | |Fair | |Fair | |Fai | Thickest layer |0.00 | Depth to |0.14 | Water erosion |0.68 | D | Bottom layer |0.00 | saturated zone | | | |  | | | | | | | 3451A: | | | | | | |  Lawson--------------|Poor | |Fair | |Fair | |Poo | Thickest layer |0.00 | Depth to |0.14 | Low content of |0.50 | L | Bottom layer |0.00 | saturated zone | | organic matter | | D | | | | | Water erosion |0.68 |  | | | | | | | 3646L: | | | | | | |  Fluvaquents---------|Poor | |Poor | |Fair | |Poo | Thickest layer |0.00 | Depth to |0.00 | Water erosion |0.68 | D | Bottom layer |0.00 | saturated zone | | Low content of |0.88 |  | | | | | organic matter | | L | | | | | | | S | | | | | | | 7076A: | | | | | | |  Otter---------------|Poor | |Poor | |Fair | |Poo | Thickest layer |0.00 | Depth to |0.00 | Water erosion |0.68 | D | Bottom layer |0.00 | saturated zone | | | |  | | | | | | | L | | | | | | | 
Table 16.--Construction Materials--Continued _______________________________________________________________________________________________________

 | | | | Map symbol | Potential as source | Potential as source | Potential as source of | P and soil name | of sand | of topsoil | reclamation material |  _________________________________________________________________________________ | Rating class |Value| Rating class and |Value| Rating class and |Value| Ra | | | limiting features | | limiting features | | li_______________________________________________________________________________________________________ | | | | | | | 7083A: | | | | | | |  Wabash--------------|Poor | |Poor | |Poor | |Poo | Thickest layer |0.00 | Too clayey |0.00 | Too clayey |0.00 | D | Bottom layer |0.00 | Depth to |0.00 | Too acid |0.97 |  | | | saturated zone | | | | S | | | | | | | L | | | | | | | 7107A: | | | | | | |  Sawmill-------------|Poor | |Poor | |Fair | |Poo | Thickest layer |0.00 | Depth to |0.00 | Too clayey |0.98 | L | Bottom layer |0.00 | saturated zone | | | | D | | | Too clayey |0.93 | | |  | | | | | | | S | | | | | | | 7239A: | | | | | | |  Dorchester----------|Poor | |Fair | |Fair | |Poo | Thickest layer |0.00 | Carbonate content|0.97 | Water erosion |0.68 | L | Bottom layer |0.00 | | | Carbonate content|0.97 | S | | | | | | | 7304A: | | | | | | |  Landes--------------|Fair | |Good | |Fair | |Goo | Thickest layer |0.01 | | | Low content of |0.12 |  | Bottom layer |0.95 | | | organic matter | |  | | | | | | | 7415A: | | | | | | |  Orion---------------|Poor | |Fair | |Fair | |Poo | Thickest layer |0.00 | Depth to |0.53 | Water erosion |0.90 | L | Bottom layer |0.00 | saturated zone | | | | D | | | | | | |  | | | | | | | 7428A: | | | | | | |  Coffeen-------------|Poor | |Fair | |Fair | |Fai | Thickest layer |0.00 | Depth to |0.14 | Water erosion |0.68 | D | Bottom layer |0.00 | saturated zone | | | |  | | | | | | | 7451A: | | | | | | |  Lawson--------------|Poor | |Fair | |Fair | |Poo | Thickest layer |0.00 | Depth to |0.14 | Water erosion |0.68 | L | Bottom layer |0.00 | saturated zone | | | | D | | | | | | |  | | | | | | | 
Table 16.--Construction Materials--Continued ________________________________________________________________________________________________________

 | | | | Map symbol | Potential as source | Potential as source | Potential as source of | Po and soil name | of sand | of topsoil | reclamation material |  __________________________________________________________________________________ | Rating class |Value| Rating class and |Value| Rating class and |Value| Rat | | | limiting features | | limiting features | | lim________________________________________________________________________________________________________ | | | | | | | 7654A: | | | | | | |  Moline--------------|Poor | |Poor | |Poor | |Poor  | Thickest layer |0.00 | Too clayey |0.00 | Too clayey |0.00 | De | Bottom layer |0.00 | Depth to |0.00 | Low content of |0.12 | s | | | saturated zone | | organic matter | | Sh | | | | | Carbonate content|0.92 | Lo | | | | | | | 8107+: | | | | | | |  Sawmill-------------|Poor | |Poor | |Good | |Poor  | Thickest layer |0.00 | Depth to |0.00 | | | Lo | Bottom layer |0.00 | saturated zone | | | | De | | | | | | | s | | | | | | | Sh | | | | | | | 8302A: | | | | | | |  Ambraw--------------|Poor | |Poor | |Fair | |Poor  | Thickest layer |0.00 | Depth to |0.00 | Too acid |0.97 | De | Bottom layer |0.00 | saturated zone | | | | s | | | | | | | Lo | | | | | | | Sh | | | | | | | 8400A: | | | | | | |  Calco---------------|Poor | |Poor | |Fair | |Poor  | Thickest layer |0.00 | Depth to |0.00 | Too clayey |0.08 | De | Bottom layer |0.00 | saturated zone | | Carbonate content|0.97 | s | | | Too clayey |0.08 | | | Lo | | | Carbonate content|0.97 | | | Sh | | | | | | | 8404A: | | | | | | |  Titus---------------|Poor | |Poor | |Poor | |Poor  | Thickest layer |0.00 | Depth to |0.00 | Too clayey |0.00 | De | Bottom layer |0.00 | saturated zone | | Low content of |0.68 | s | | | Too clayey |0.00 | organic matter | | Sh | | | | | | | ________________________________________________________________________________________________________
312 Soil Survey of

Table 17a.--Water Management

(The information in this table indicates the dominant soil condition but does not eliminate the

 need for onsite investigation. The numbers in the value columns range from 0.01 to 1.00. The

 larger the value, the greater the limitation. See text for further explanation of ratings in

 this table)

___________________________________________________________________________________________________

 | | |

 Map symbol | 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 | ___________________________________________________________________________________________________

 | | | | | |

8D2: | | | | | |

 Hickory-------------|Somewhat limited | |Not limited | |Very limited |

 | Seepage |0.72 | | | Deep to water |1.00

 | Slope |0.02 | | | |

 | | | | | |

8D3: | | | | | |

 Hickory-------------|Somewhat limited | |Somewhat limited | |Very limited |

 | Seepage |0.72 | Piping |0.04 | Deep to water |1.00

 | Slope |0.02 | | | |

 | | | | | |

8F: | | | | | |

 Hickory-------------|Somewhat limited | |Not limited | |Very limited |

 | Seepage |0.72 | | | Deep to water |1.00

 | Slope |0.36 | | | |

 | | | | | |

8F3: | | | | | |

 Hickory-------------|Somewhat limited | |Somewhat limited | |Very limited |

 | Seepage |0.72 | Piping |0.02 | Deep to water |1.00

 | Slope |0.36 | | | |

 | | | | | |

19C3: | | | | | |

 Sylvan--------------|Somewhat limited | |Somewhat limited | |Very limited |

 | Seepage |0.72 | Piping |0.01 | Deep to water |1.00

 | | | | | |

19D: | | | | | |

 Sylvan--------------|Somewhat limited | |Somewhat limited | |Very limited |

 | Seepage |0.72 | Piping |0.03 | Deep to water |1.00

 | Slope |0.02 | | | |

 | | | | | |

19D3: | | | | | |

 Sylvan--------------|Somewhat limited | |Somewhat limited | |Very limited |

 | Seepage |0.72 | Piping |0.18 | Deep to water |1.00

 | Slope |0.02 | | | |

 | | | | | |

19F: | | | | | |

 Sylvan--------------|Somewhat limited | |Somewhat limited | |Very limited |

 | Seepage |0.72 | Piping |0.40 | Deep to water |1.00

 | Slope |0.36 | | | |

 | | | | | |

19F3: | | | | | |

 Sylvan--------------|Somewhat limited | |Somewhat limited | |Very limited |

 | Seepage |0.72 | Piping |0.12 | Deep to water |1.00

 | Slope |0.36 | | | |

 | | | | | |

45A: | | | | | |

 Denny---------------|Somewhat limited | |Very limited | |Somewhat limited |

 | Seepage |0.04 | Ponding |1.00 | Slow refill |0.28

 | | | Depth to |1.00 | Cutbanks cave |0.10

 | | | saturated zone | | |

 | | | Piping |0.05 | |

 | | | | | |

51A: | | | | | |

 Muscatune-----------|Somewhat limited | |Very limited | |Somewhat limited |

 | Seepage |0.72 | Depth to |1.00 | Slow refill |0.28

 | | | saturated zone | | Cutbanks cave |0.10

 | | | Piping |0.08 | |

 | | | | | |
Rock Island County, Illinois 313

Table 17a.--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 | ___________________________________________________________________________________________________

 | | | | | |

61A: | | | | | |

 Atterberry----------|Somewhat limited | |Very limited | |Somewhat limited |

 | Seepage |0.72 | Depth to |1.00 | Slow refill |0.28

 | | | saturated zone | | Cutbanks cave |0.10

 | | | Piping |0.01 | |

 | | | | | |

68A: | | | | | |

 Sable---------------|Somewhat limited | |Very limited | |Somewhat limited |

 | Seepage |0.72 | Ponding |1.00 | Slow refill |0.28

 | | | Depth to |1.00 | Cutbanks cave |0.10

 | | | saturated zone | | |

 | | | | | |

86B: | | | | | |

 Osco----------------|Somewhat limited | |Somewhat limited | |Very limited |

 | Seepage |0.72 | Piping |0.01 | Deep to water |1.00

 | | | | | |

86C2: | | | | | |

 Osco----------------|Somewhat limited | |Not limited | |Very limited |

 | Seepage |0.72 | | | Deep to water |1.00

 | | | | | |

87A, 87C2: | | | | | |

 Dickinson-----------|Very limited | |Somewhat limited | |Very limited |

 | Seepage |1.00 | Seepage |0.90 | Deep to water |1.00

 | | | | | |

88A: | | | | | |

 Sparta--------------|Very limited | |Somewhat limited | |Very limited |

 | Seepage |1.00 | Seepage |0.90 | Deep to water |1.00

 | | | | | |

172A: | | | | | |

 Hoopeston-----------|Very limited | |Very limited | |Very limited |

 | Seepage |1.00 | Depth to |1.00 | Cutbanks cave |1.00

 | | | saturated zone | | |

 | | | Seepage |0.76 | |

 | | | | | |

212B: | | | | | |

 Thebes--------------|Very limited | |Somewhat limited | |Very limited |

 | Seepage |1.00 | Seepage |0.22 | Deep to water |1.00

 | | | | | |

250D: | | | | | |

 Velma---------------|Somewhat limited | |Somewhat limited | |Very limited |

 | Seepage |0.72 | Piping |0.09 | Deep to water |1.00

 | Slope |0.02 | | | |

 | | | | | |

261A: | | | | | |

 Niota---------------|Somewhat limited | |Very limited | |Somewhat limited |

 | Seepage |0.54 | Ponding |1.00 | Slow refill |0.46

 | | | Depth to |1.00 | Cutbanks cave |0.10

 | | | saturated zone | | |

 | | | Piping |0.01 | |

 | | | | | |

274B, 274B2, 274C2: | | | | | |

 Seaton--------------|Somewhat limited | |Somewhat limited | |Very limited |

 | Seepage |0.72 | Piping |0.88 | Deep to water |1.00

 | | | | | |

274D2: | | | | | |

 Seaton--------------|Somewhat limited | |Somewhat limited | |Very limited |

 | Seepage |0.72 | Piping |0.88 | Deep to water |1.00

 | Slope |0.02 | | | |

 | | | | | |
314 Soil Survey of

Table 17a.--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 | ___________________________________________________________________________________________________

 | | | | | |

275A: | | | | | |

 Joy-----------------|Somewhat limited | |Very limited | |Somewhat limited |

 | Seepage |0.72 | Depth to |1.00 | Slow refill |0.28

 | | | saturated zone | | Cutbanks cave |0.10

 | | | Piping |0.70 | |

 | | | | | |

278A: | | | | | |

 Stronghurst---------|Somewhat limited | |Very limited | |Somewhat limited |

 | Seepage |0.72 | Depth to |1.00 | Slow refill |0.28

 | | | saturated zone | | Cutbanks cave |0.10

 | | | | | |

279A, 279B: | | | | | |

 Rozetta-------------|Somewhat limited | |Not limited | |Very limited |

 | Seepage |0.72 | | | Deep to water |1.00

 | | | | | |

280B: | | | | | |

 Fayette-------------|Somewhat limited | |Somewhat limited | |Very limited |

 | Seepage |0.72 | Piping |0.09 | Deep to water |1.00

 | | | | | |

280B2: | | | | | |

 Fayette-------------|Somewhat limited | |Somewhat limited | |Very limited |

 | Seepage |0.72 | Piping |0.06 | Deep to water |1.00

 | | | | | |

280C2, 280C3: | | | | | |

 Fayette-------------|Somewhat limited | |Somewhat limited | |Very limited |

 | Seepage |0.72 | Piping |0.03 | Deep to water |1.00

 | | | | | |

317A: | | | | | |

 Millsdale-----------|Somewhat limited | |Very limited | |Very limited |

 | Depth to bedrock |0.85 | Ponding |1.00 | Depth to hard |1.00

 | Seepage |0.04 | Depth to |1.00 | bedrock |

 | | | saturated zone | | Slow refill |0.28

 | | | Thin layer |0.85 | Cutbanks cave |0.10

 | | | | | |

430A, 430B: | | | | | |

 Raddle--------------|Somewhat limited | |Very limited | |Very limited |

 | Seepage |0.72 | Piping |1.00 | Deep to water |1.00

 | | | | | |

525A: | | | | | |

 Joslin--------------|Somewhat limited | |Somewhat limited | |Very limited |

 | Seepage |0.72 | Thin layer |0.11 | Deep to water |1.00

 | Depth to bedrock |0.10 | Piping |0.10 | |

 | | | | | |

567C2: | | | | | |

 Elkhart-------------|Somewhat limited | |Somewhat limited | |Very limited |

 | Seepage |0.72 | Piping |0.17 | Deep to water |1.00

 | | | | | |

567D2: | | | | | |

 Elkhart-------------|Somewhat limited | |Somewhat limited | |Very limited |

 | Seepage |0.72 | Piping |0.08 | Deep to water |1.00

 | Slope |0.02 | | | |

 | | | | | |

570B: | | | | | |

 Martinsville--------|Somewhat limited | |Somewhat limited | |Very limited |

 | Seepage |0.72 | Piping |0.99 | Deep to water |1.00

 | | | Seepage |0.06 | |

 | | | | | |

570C3: | | | | | |

 Martinsville--------|Somewhat limited | |Somewhat limited | |Very limited |

 | Seepage |0.72 | Piping |0.71 | Deep to water |1.00

 | | | Seepage |0.06 | |

 | | | | | |
Rock Island County, Illinois 315

Table 17a.--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 | ___________________________________________________________________________________________________

 | | | | | |

570D3: | | | | | |

 Martinsville--------|Somewhat limited | |Somewhat limited | |Very limited |

 | Seepage |0.72 | Piping |0.71 | Deep to water |1.00

 | Slope |0.02 | Seepage |0.06 | |

 | | | | | |

647A: | | | | | |

 Lawler--------------|Very limited | |Very limited | |Very limited |

 | Seepage |1.00 | Depth to |1.00 | Cutbanks cave |1.00

 | | | saturated zone | | |

 | | | Seepage |0.95 | |

 | | | | | |

671A, 671B: | | | | | |

 Biggsville----------|Somewhat limited | |Somewhat limited | |Very limited |

 | Seepage |0.72 | Piping |0.89 | Deep to water |1.00

 | | | | | |

675A: | | | | | |

 Greenbush-----------|Somewhat limited | |Somewhat limited | |Very limited |

 | Seepage |0.72 | Piping |0.12 | Deep to water |1.00

 | | | | | |

675B: | | | | | |

 Greenbush-----------|Somewhat limited | |Somewhat limited | |Very limited |

 | Seepage |0.72 | Piping |0.07 | Deep to water |1.00

 | | | | | |

689B: | | | | | |

 Coloma--------------|Very limited | |Very limited | |Very limited |

 | Seepage |1.00 | Seepage |1.00 | Deep to water |1.00

 | | | | | |

689D: | | | | | |

 Coloma--------------|Very limited | |Very limited | |Very limited |

 | Seepage |1.00 | Seepage |1.00 | Deep to water |1.00

 | Slope |0.01 | | | |

 | | | | | |

705A: | | | | | |

 Buckhart------------|Somewhat limited | |Somewhat limited | |Somewhat limited |

 | Seepage |0.72 | Depth to |0.68 | Slow refill |0.28

 | | | saturated zone | | Deep to water |0.14

 | | | Piping |0.03 | Cutbanks cave |0.10

 | | | | | |

727A: | | | | | |

 Waukee--------------|Very limited | |Somewhat limited | |Very limited |

 | Seepage |1.00 | Seepage |0.90 | Deep to water |1.00

 | | | | | |

741F: | | | | | |

 Oakville------------|Very limited | |Very limited | |Very limited |

 | Seepage |1.00 | Seepage |1.00 | Deep to water |1.00

 | Slope |0.20 | | | |

 | | | | | |

763A: | | | | | |

 Joslin--------------|Somewhat limited | |Somewhat limited | |Very limited |

 | Seepage |0.72 | Piping |0.12 | Deep to water |1.00

 | | | | | |

763B: | | | | | |

 Joslin--------------|Somewhat limited | |Somewhat limited | |Very limited |

 | Seepage |0.72 | Piping |0.12 | Deep to water |1.00

 | | | | | |

764A: | | | | | |

 Coyne---------------|Very limited | |Somewhat limited | |Very limited |

 | Seepage |1.00 | Piping |0.90 | Deep to water |1.00

 | | | Seepage |0.07 | |

 | | | | | |

764C: | | | | | |

 Coyne---------------|Very limited | |Somewhat limited | |Very limited |

 | Seepage |1.00 | Seepage |0.97 | Deep to water |1.00

 | | | | | |
316 Soil Survey of

Table 17a.--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 | ___________________________________________________________________________________________________

 | | | | | |

774A: | | | | | |

 Saude---------------|Very limited | |Somewhat limited | |Very limited |

 | Seepage |1.00 | Seepage |0.90 | Deep to water |1.00

 | | | | | |

800C: | | | | | |

 Psamments-----------|Very limited | |Very limited | |Very limited |

 | Seepage |1.00 | Seepage |1.00 | Deep to water |1.00

 | | | | | |

802B: | | | | | |

 Orthents------------|Somewhat limited | |Somewhat limited | |Very limited |

 | Seepage |0.04 | Piping |0.50 | Deep to water |1.00

 | | | | | |

864: | | | | | |

 Pits, quarries------|Not rated | |Not rated | |Not rated |

 | | | | | |

865: | | | | | |

 Pits, gravel--------|Not rated | |Not rated | |Not rated |

 | | | | | |

898F3: | | | | | |

 Hickory-------------|Somewhat limited | |Not limited | |Very limited |

 | Seepage |0.72 | | | Deep to water |1.00

 | Slope |0.32 | | | |

 | | | | | |

 Sylvan--------------|Somewhat limited | |Somewhat limited | |Very limited |

 | Seepage |0.72 | Piping |0.12 | Deep to water |1.00

 | Slope |0.32 | | | |

 | | | | | |

898G: | | | | | |

 Hickory-------------|Somewhat limited | |Somewhat limited | |Very limited |

 | Slope |0.99 | Piping |0.12 | Deep to water |1.00

 | Seepage |0.72 | | | |

 | | | | | |

 Sylvan--------------|Somewhat limited | |Somewhat limited | |Very limited |

 | Slope |0.99 | Piping |0.06 | Deep to water |1.00

 | Seepage |0.72 | | | |

 | | | | | |

913D2: | | | | | |

 Marseilles----------|Somewhat limited | |Somewhat limited | |Very limited |

 | Depth to bedrock |0.11 | Thin layer |0.85 | Deep to water |1.00

 | Slope |0.02 | Hard to pack |0.03 | |

 | | | | | |

 Hickory-------------|Somewhat limited | |Not limited | |Very limited |

 | Seepage |0.72 | | | Deep to water |1.00

 | Slope |0.02 | | | |

 | | | | | |

913F: | | | | | |

 Marseilles----------|Somewhat limited | |Somewhat limited | |Very limited |

 | Slope |0.32 | Thin layer |0.85 | Deep to water |1.00

 | Depth to bedrock |0.11 | | | |

 | | | | | |

 Hickory-------------|Somewhat limited | |Not limited | |Very limited |

 | Seepage |0.72 | | | Deep to water |1.00

 | Slope |0.32 | | | |

 | | | | | |

913G: | | | | | |

 Marseilles----------|Somewhat limited | |Somewhat limited | |Very limited |

 | Slope |0.97 | Thin layer |0.85 | Deep to water |1.00

 | Depth to bedrock |0.11 | Hard to pack |0.03 | |

 | | | | | |

 Hickory-------------|Somewhat limited | |Not limited | |Very limited |

 | Slope |0.97 | | | Deep to water |1.00

 | Seepage |0.72 | | | |

 | | | | | |
Rock Island County, Illinois 317

Table 17a.--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 | ___________________________________________________________________________________________________

 | | | | | |

917C2: | | | | | |

 Oakville------------|Very limited | |Very limited | |Very limited |

 | Seepage |1.00 | Seepage |1.00 | Deep to water |1.00

 | | | | | |

 Tell----------------|Very limited | |Somewhat limited | |Very limited |

 | Seepage |1.00 | Seepage |0.43 | Deep to water |1.00

 | | | | | |

917D2: | | | | | |

 Oakville------------|Very limited | |Very limited | |Very limited |

 | Seepage |1.00 | Seepage |1.00 | Deep to water |1.00

 | Slope |0.02 | | | |

 | | | | | |

 Tell----------------|Very limited | |Somewhat limited | |Very limited |

 | Seepage |1.00 | Seepage |0.90 | Deep to water |1.00

 | Slope |0.02 | | | |

 | | | | | |

943D2: | | | | | |

 Seaton--------------|Somewhat limited | |Somewhat limited | |Very limited |

 | Seepage |0.72 | Piping |0.88 | Deep to water |1.00

 | Slope |0.02 | | | |

 | | | | | |

 Timula--------------|Somewhat limited | |Very limited | |Very limited |

 | Seepage |0.72 | Piping |1.00 | Deep to water |1.00

 | Slope |0.02 | | | |

 | | | | | |

943F2: | | | | | |

 Seaton--------------|Somewhat limited | |Somewhat limited | |Very limited |

 | Seepage |0.72 | Piping |0.88 | Deep to water |1.00

 | Slope |0.36 | | | |

 | | | | | |

 Timula--------------|Somewhat limited | |Very limited | |Very limited |

 | Seepage |0.72 | Piping |1.00 | Deep to water |1.00

 | Slope |0.36 | | | |

 | | | | | |

944D2: | | | | | |

 Velma---------------|Somewhat limited | |Not limited | |Very limited |

 | Seepage |0.72 | | | Deep to water |1.00

 | Slope |0.02 | | | |

 | | | | | |

 Coatsburg-----------|Somewhat limited | |Very limited | |Very limited |

 | Slope |0.02 | Depth to |1.00 | Deep to water |1.00

 | | | saturated zone | | |

 | | | Hard to pack |0.96 | |

 | | | | | |

946D3: | | | | | |

 Hickory-------------|Somewhat limited | |Somewhat limited | |Very limited |

 | Seepage |0.72 | Piping |0.02 | Deep to water |1.00

 | Slope |0.02 | | | |

 | | | | | |

 Atlas---------------|Somewhat limited | |Very limited | |Very limited |

 | Slope |0.02 | Depth to |1.00 | Slow refill |1.00

 | | | saturated zone | | Cutbanks cave |0.10

 | | | Hard to pack |0.93 | |

 | | | | | |

946F3: | | | | | |

 Hickory-------------|Somewhat limited | |Somewhat limited | |Very limited |

 | Seepage |0.72 | Piping |0.02 | Deep to water |1.00

 | Slope |0.36 | | | |

 | | | | | |

 Atlas---------------|Somewhat limited | |Very limited | |Very limited |

 | Slope |0.36 | Depth to |1.00 | Deep to water |1.00

 | | | saturated zone | | |

 | | | Hard to pack |0.93 | |

 | | | | | |
318 Soil Survey of

Table 17a.--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 | ___________________________________________________________________________________________________

 | | | | | |

959G: | | | | | |

 Strawn--------------|Somewhat limited | |Somewhat limited | |Very limited |

 | Slope |0.90 | Piping |0.78 | Deep to water |1.00

 | Seepage |0.72 | | | |

 | | | | | |

 Chute---------------|Very limited | |Very limited | |Very limited |

 | Seepage |1.00 | Seepage |1.00 | Deep to water |1.00

 | Slope |0.90 | | | |

 | | | | | |

960D2: | | | | | |

 Hickory-------------|Somewhat limited | |Not limited | |Very limited |

 | Seepage |0.72 | | | Deep to water |1.00

 | Slope |0.02 | | | |

 | | | | | |

 Sylvan--------------|Somewhat limited | |Somewhat limited | |Very limited |

 | Seepage |0.72 | Piping |0.08 | Deep to water |1.00

 | Slope |0.02 | | | |

 | | | | | |

 Fayette-------------|Somewhat limited | |Somewhat limited | |Very limited |

 | Seepage |0.72 | Piping |0.03 | Deep to water |1.00

 | Slope |0.02 | | | |

 | | | | | |

960D3: | | | | | |

 Hickory-------------|Somewhat limited | |Somewhat limited | |Very limited |

 | Seepage |0.72 | Piping |0.04 | Deep to water |1.00

 | Slope |0.02 | | | |

 | | | | | |

 Sylvan--------------|Somewhat limited | |Somewhat limited | |Very limited |

 | Seepage |0.72 | Piping |0.18 | Deep to water |1.00

 | Slope |0.02 | | | |

 | | | | | |

 Fayette-------------|Somewhat limited | |Somewhat limited | |Very limited |

 | Seepage |0.72 | Piping |0.12 | Deep to water |1.00

 | Slope |0.02 | | | |

 | | | | | |

960F: | | | | | |

 Hickory-------------|Somewhat limited | |Somewhat limited | |Very limited |

 | Seepage |0.72 | Piping |0.01 | Deep to water |1.00

 | Slope |0.36 | | | |

 | | | | | |

 Sylvan--------------|Somewhat limited | |Somewhat limited | |Very limited |

 | Seepage |0.72 | Piping |0.12 | Deep to water |1.00

 | Slope |0.36 | | | |

 | | | | | |

 Fayette-------------|Somewhat limited | |Somewhat limited | |Very limited |

 | Seepage |0.72 | Piping |0.01 | Deep to water |1.00

 | Slope |0.36 | | | |

 | | | | | |

961A: | | | | | |

 Burkhardt-----------|Very limited | |Somewhat limited | |Very limited |

 | Seepage |1.00 | Seepage |0.90 | Deep to water |1.00

 | | | | | |

 Saude---------------|Very limited | |Somewhat limited | |Very limited |

 | Seepage |1.00 | Seepage |0.90 | Deep to water |1.00

 | | | | | |

962F: | | | | | |

 Sylvan--------------|Somewhat limited | |Somewhat limited | |Very limited |

 | Seepage |0.72 | Piping |0.12 | Deep to water |1.00

 | Slope |0.36 | | | |

 | | | | | |

 Bold----------------|Somewhat limited | |Very limited | |Very limited |

 | Seepage |0.72 | Piping |1.00 | Deep to water |1.00

 | Slope |0.36 | | | |

 | | | | | |
Rock Island County, Illinois 319

Table 17a.--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 | ___________________________________________________________________________________________________

 | | | | | |

1076A: | | | | | |

 Otter---------------|Somewhat limited | |Very limited | |Somewhat limited |

 | Seepage |0.72 | Ponding |1.00 | Slow refill |0.28

 | | | Depth to |1.00 | Cutbanks cave |0.10

 | | | saturated zone | | |

 | | | Piping |0.78 | |

 | | | | | |

1082A: | | | | | |

 Millington----------|Somewhat limited | |Very limited | |Somewhat limited |

 | Seepage |0.72 | Ponding |1.00 | Slow refill |0.28

 | | | Depth to |1.00 | Cutbanks cave |0.10

 | | | saturated zone | | |

 | | | Piping |0.74 | |

 | | | | | |

1107A: | | | | | |

 Sawmill-------------|Somewhat limited | |Very limited | |Somewhat limited |

 | Seepage |0.72 | Ponding |1.00 | Slow refill |0.28

 | | | Depth to |1.00 | Cutbanks cave |0.10

 | | | saturated zone | | |

 | | | Piping |0.01 | |

 | | | | | |

1334A: | | | | | |

 Birds---------------|Somewhat limited | |Very limited | |Somewhat limited |

 | Seepage |0.72 | Ponding |1.00 | Slow refill |0.28

 | | | Depth to |1.00 | Cutbanks cave |0.10

 | | | saturated zone | | |

 | | | Piping |0.96 | |

 | | | | | |

1400A: | | | | | |

 Calco---------------|Somewhat limited | |Very limited | |Somewhat limited |

 | Seepage |0.72 | Ponding |1.00 | Slow refill |0.28

 | | | Depth to |1.00 | Cutbanks cave |0.10

 | | | saturated zone | | |

 | | | | | |

1654A: | | | | | |

 Moline--------------|Not limited | |Very limited | |Somewhat limited |

 | | | Ponding |1.00 | Slow refill |0.96

 | | | Depth to |1.00 | Cutbanks cave |0.10

 | | | saturated zone | | |

 | | | Hard to pack |1.00 | |

 | | | | | |

3074A: | | | | | |

 Radford-------------|Somewhat limited | |Very limited | |Somewhat limited |

 | Seepage |0.72 | Depth to |1.00 | Slow refill |0.28

 | | | saturated zone | | Cutbanks cave |0.10

 | | | Piping |0.33 | |

 | | | | | |

3076A: | | | | | |

 Otter---------------|Somewhat limited | |Very limited | |Somewhat limited |

 | Seepage |0.72 | Ponding |1.00 | Slow refill |0.28

 | | | Depth to |1.00 | Cutbanks cave |0.10

 | | | saturated zone | | |

 | | | Piping |0.75 | |

 | | | | | |

3082A: | | | | | |

 Millington----------|Somewhat limited | |Very limited | |Somewhat limited |

 | Seepage |0.72 | Depth to |1.00 | Slow refill |0.28

 | | | saturated zone | | Cutbanks cave |0.10

 | | | Piping |0.74 | |

 | | | | | |
320 Soil Survey of

Table 17a.--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 | ___________________________________________________________________________________________________

 | | | | | |

3083A: | | | | | |

 Wabash--------------|Not limited | |Very limited | |Very limited |

 | | | Ponding |1.00 | Slow refill |1.00

 | | | Depth to |1.00 | Cutbanks cave |0.10

 | | | saturated zone | | |

 | | | Hard to pack |1.00 | |

 | | | | | |

3107A: | | | | | |

 Sawmill-------------|Somewhat limited | |Very limited | |Somewhat limited |

 | Seepage |0.72 | Depth to |1.00 | Slow refill |0.28

 | | | saturated zone | | Cutbanks cave |0.10

 | | | | | |

3239A: | | | | | |

 Dorchester----------|Somewhat limited | |Somewhat limited | |Very limited |

 | Seepage |0.72 | Piping |0.94 | Deep to water |1.00

 | | | | | |

3400A: | | | | | |

 Calco---------------|Somewhat limited | |Very limited | |Somewhat limited |

 | Seepage |0.72 | Ponding |1.00 | Slow refill |0.28

 | | | Depth to |1.00 | Cutbanks cave |0.10

 | | | saturated zone | | |

 | | | | | |

3415A: | | | | | |

 Orion---------------|Somewhat limited | |Very limited | |Very limited |

 | Seepage |0.72 | Depth to |1.00 | Cutbanks cave |1.00

 | | | saturated zone | | Slow refill |0.28

 | | | Piping |1.00 | |

 | | | | | |

3428A: | | | | | |

 Coffeen-------------|Very limited | |Very limited | |Somewhat limited |

 | Seepage |1.00 | Depth to |1.00 | Cutbanks cave |0.10

 | | | saturated zone | | |

 | | | Piping |1.00 | |

 | | | | | |

3451A: | | | | | |

 Lawson--------------|Somewhat limited | |Very limited | |Somewhat limited |

 | Seepage |0.72 | Depth to |1.00 | Slow refill |0.28

 | | | saturated zone | | Cutbanks cave |0.10

 | | | Piping |0.68 | |

 | | | | | |

3646L: | | | | | |

 Fluvaquents---------|Somewhat limited | |Very limited | |Somewhat limited |

 | Seepage |0.72 | Ponding |1.00 | Slow refill |0.28

 | | | Depth to |1.00 | Cutbanks cave |0.10

 | | | saturated zone | | |

 | | | Piping |1.00 | |

 | | | | | |

7076A: | | | | | |

 Otter---------------|Somewhat limited | |Very limited | |Somewhat limited |

 | Seepage |0.72 | Ponding |1.00 | Slow refill |0.28

 | | | Depth to |1.00 | Cutbanks cave |0.10

 | | | saturated zone | | |

 | | | Piping |0.73 | |

 | | | | | |

7083A: | | | | | |

 Wabash--------------|Not limited | |Very limited | |Very limited |

 | | | Ponding |1.00 | Slow refill |1.00

 | | | Depth to |1.00 | Cutbanks cave |0.10

 | | | saturated zone | | |

 | | | Hard to pack |1.00 | |

 | | | | | |
Rock Island County, Illinois 321

Table 17a.--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 | ___________________________________________________________________________________________________

 | | | | | |

7107A: | | | | | |

 Sawmill-------------|Somewhat limited | |Very limited | |Somewhat limited |

 | Seepage |0.72 | Ponding |1.00 | Slow refill |0.28

 | | | Depth to |1.00 | Cutbanks cave |0.10

 | | | saturated zone | | |

 | | | | | |

7239A: | | | | | |

 Dorchester----------|Somewhat limited | |Somewhat limited | |Very limited |

 | Seepage |0.72 | Piping |0.94 | Deep to water |1.00

 | | | | | |

7304A: | | | | | |

 Landes--------------|Very limited | |Somewhat limited | |Very limited |

 | Seepage |1.00 | Seepage |0.95 | Deep to water |1.00

 | | | | | |

7415A: | | | | | |

 Orion---------------|Somewhat limited | |Very limited | |Very limited |

 | Seepage |0.72 | Piping |1.00 | Cutbanks cave |1.00

 | | | Depth to |1.00 | Slow refill |0.28

 | | | saturated zone | | Deep to water |0.01

 | | | | | |

7428A: | | | | | |

 Coffeen-------------|Very limited | |Very limited | |Somewhat limited |

 | Seepage |1.00 | Depth to |1.00 | Cutbanks cave |0.10

 | | | saturated zone | | |

 | | | Piping |1.00 | |

 | | | | | |

7451A: | | | | | |

 Lawson--------------|Somewhat limited | |Very limited | |Somewhat limited |

 | Seepage |0.72 | Depth to |1.00 | Slow refill |0.28

 | | | saturated zone | | Cutbanks cave |0.10

 | | | Piping |0.60 | |

 | | | | | |

7654A: | | | | | |

 Moline--------------|Not limited | |Very limited | |Somewhat limited |

 | | | Ponding |1.00 | Slow refill |0.96

 | | | Depth to |1.00 | Cutbanks cave |0.10

 | | | saturated zone | | |

 | | | Hard to pack |1.00 | |

 | | | | | |

8107+: | | | | | |

 Sawmill-------------|Somewhat limited | |Very limited | |Somewhat limited |

 | Seepage |0.72 | Depth to |1.00 | Slow refill |0.28

 | | | saturated zone | | Cutbanks cave |0.10

 | | | | | |

8302A: | | | | | |

 Ambraw--------------|Somewhat limited | |Very limited | |Somewhat limited |

 | Seepage |0.54 | Ponding |1.00 | Slow refill |0.28

 | | | Depth to |1.00 | Cutbanks cave |0.10

 | | | saturated zone | | |

 | | | Piping |0.35 | |

 | | | | | |

8400A: | | | | | |

 Calco---------------|Somewhat limited | |Very limited | |Somewhat limited |

 | Seepage |0.72 | Ponding |1.00 | Slow refill |0.28

 | | | Depth to |1.00 | Cutbanks cave |0.10

 | | | saturated zone | | |

 | | | | | |
322 Soil Survey of

Table 17a.--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 | ___________________________________________________________________________________________________

 | | | | | |

8404A: | | | | | |

 Titus---------------|Somewhat limited | |Very limited | |Somewhat limited |

 | Seepage |0.04 | Ponding |1.00 | Slow refill |0.96

 | | | Depth to |1.00 | Cutbanks cave |0.10

 | | | saturated zone | | |

 | | | | | | ___________________________________________________________________________________________________
Rock Island County, Illinois 323

Table 17b.--Water Management

(The information in this table indicates the dominant soil condition but does not eliminate the need

 for onsite investigation. The numbers in the value columns range from 0.01 to 1.00. The larger

 the value, the greater the limitation. See text for further explanation of ratings in this

 table)

________________________________________________________________________________________________________

 | | |

 Map symbol | Constructing grassed |Constructing terraces and| Tile drains and

 and soil name | waterways and surface | diversions | underground outlets

 | drains | | _____________________________________________________________________________

 | Rating class and |Value| Rating class and |Value| Rating class and |Value

 | limiting features | | limiting features | | limiting features | ________________________________________________________________________________________________________

 | | | | | |

8D2: | | | | | |

 Hickory------------------|Very limited | |Very limited | |Somewhat limited |

 | Slope |1.00 | Slope |1.00 | Slope |0.96

 | | | Water erosion |0.89 | Cutbanks cave |0.10

 | | | | | |

8D3: | | | | | |

 Hickory------------------|Very limited | |Very limited | |Somewhat limited |

 | Slope |1.00 | Slope |1.00 | Slope |0.96

 | | | Water erosion |0.56 | Cutbanks cave |0.10

 | | | | | |

8F: | | | | | |

 Hickory------------------|Very limited | |Very limited | |Very limited |

 | Slope |1.00 | Slope |1.00 | Slope |1.00

 | | | Water erosion |0.89 | Cutbanks cave |0.10

 | | | | | |

8F3: | | | | | |

 Hickory------------------|Very limited | |Very limited | |Very limited |

 | Slope |1.00 | Slope |1.00 | Slope |1.00

 | | | Water erosion |0.56 | Cutbanks cave |0.10

 | | | | | |

19C3: | | | | | |

 Sylvan-------------------|Somewhat limited | |Very limited | |Somewhat limited |

 | Slope |0.99 | Water erosion |1.00 | Cutbanks cave |0.50

 | | | Slope |0.99 | |

 | | | | | |

19D, 19D3: | | | | | |

 Sylvan-------------------|Very limited | |Very limited | |Somewhat limited |

 | Slope |1.00 | Water erosion |1.00 | Slope |0.96

 | | | Slope |1.00 | Cutbanks cave |0.50

 | | | | | |

19F, 19F3: | | | | | |

 Sylvan-------------------|Very limited | |Very limited | |Very limited |

 | Slope |1.00 | Water erosion |1.00 | Slope |1.00

 | | | Slope |1.00 | Cutbanks cave |0.10

 | | | | | |

45A: | | | | | |

 Denny--------------------|Not limited | |Very limited | |Very limited |

 | | | Water erosion |1.00 | Ponding |1.00

 | | | Ponding |1.00 | Depth to |1.00

 | | | Depth to |1.00 | saturated zone |

 | | | saturated zone | | Cutbanks cave |0.10

 | | | | | |

51A: | | | | | |

 Muscatune----------------|Not limited | |Very limited | |Very limited |

 | | | Water erosion |1.00 | Depth to |1.00

 | | | Depth to |1.00 | saturated zone |

 | | | saturated zone | | Cutbanks cave |0.10

 | | | | | |

61A: | | | | | |

 Atterberry---------------|Not limited | |Very limited | |Very limited |

 | | | Water erosion |1.00 | Depth to |1.00

 | | | Depth to |1.00 | saturated zone |

 | | | saturated zone | | Cutbanks cave |0.10

 | | | | | |
324 Soil Survey of

Table 17b.--Water Management--Continued

________________________________________________________________________________________________________

 | | |

 Map symbol | Constructing grassed |Constructing terraces and| Tile drains and

 and soil name | waterways and surface | diversions | underground outlets

 | drains | | _____________________________________________________________________________

 | Rating class and |Value| Rating class and |Value| Rating class and |Value

 | limiting features | | limiting features | | limiting features | ________________________________________________________________________________________________________

 | | | | | |

68A: | | | | | |

 Sable--------------------|Not limited | |Very limited | |Very limited |

 | | | Water erosion |1.00 | Ponding |1.00

 | | | Ponding |1.00 | Depth to |1.00

 | | | Depth to |1.00 | saturated zone |

 | | | saturated zone | | Cutbanks cave |0.10

 | | | | | |

86B: | | | | | |

 Osco---------------------|Somewhat limited | |Very limited | |Somewhat limited |

 | Slope |0.25 | Water erosion |1.00 | Depth to |0.15

 | | | Slope |0.25 | saturated zone |

 | | | | | Cutbanks cave |0.10

 | | | | | |

86C2: | | | | | |

 Osco---------------------|Somewhat limited | |Very limited | |Somewhat limited |

 | Slope |0.99 | Water erosion |1.00 | Depth to |0.15

 | | | Slope |0.99 | saturated zone |

 | | | | | Cutbanks cave |0.10

 | | | | | |

87A: | | | | | |

 Dickinson----------------|Not limited | |Very limited | |Very limited |

 | | | Too sandy |1.00 | Cutbanks cave |1.00

 | | | Water erosion |0.17 | |

 | | | | | |

87C2: | | | | | |

 Dickinson----------------|Somewhat limited | |Very limited | |Very limited |

 | Slope |0.99 | Too sandy |1.00 | Cutbanks cave |1.00

 | | | Slope |0.99 | |

 | | | Water erosion |0.17 | |

 | | | | | |

88A: | | | | | |

 Sparta-------------------|Not limited | |Very limited | |Very limited |

 | | | Too sandy |1.00 | Cutbanks cave |1.00

 | | | | | |

172A: | | | | | |

 Hoopeston----------------|Not limited | |Very limited | |Very limited |

 | | | Depth to |1.00 | Cutbanks cave |1.00

 | | | saturated zone | | Depth to |1.00

 | | | Water erosion |0.17 | saturated zone |

 | | | | | |

212B: | | | | | |

 Thebes-------------------|Somewhat limited | |Very limited | |Very limited |

 | Slope |0.25 | Water erosion |1.00 | Cutbanks cave |1.00

 | | | Slope |0.25 | |

 | | | | | |

250D: | | | | | |

 Velma--------------------|Very limited | |Very limited | |Somewhat limited |

 | Slope |1.00 | Slope |1.00 | Slope |0.96

 | | | Water erosion |0.56 | Cutbanks cave |0.10

 | | | | | |

 | | | | | |

261A: | | | | | |

 Niota--------------------|Not limited | |Very limited | |Very limited |

 | | | Water erosion |1.00 | Ponding |1.00

 | | | Ponding |1.00 | Depth to |1.00

 | | | Depth to |1.00 | saturated zone |

 | | | saturated zone | | Too clayey |0.41

 | | | | | Cutbanks cave |0.10

 | | | | | |
Rock Island County, Illinois 325

Table 17b.--Water Management--Continued

________________________________________________________________________________________________________

 | | |

 Map symbol | Constructing grassed |Constructing terraces and| Tile drains and

 and soil name | waterways and surface | diversions | underground outlets

 | drains | | _____________________________________________________________________________

 | Rating class and |Value| Rating class and |Value| Rating class and |Value

 | limiting features | | limiting features | | limiting features | ________________________________________________________________________________________________________

 | | | | | |

274B, 274B2: | | | | | |

 Seaton-------------------|Somewhat limited | |Very limited | |Somewhat limited |

 | Slope |0.25 | Water erosion |1.00 | Cutbanks cave |0.50

 | | | Slope |0.25 | |

 | | | | | |

274C2: | | | | | |

 Seaton-------------------|Somewhat limited | |Very limited | |Somewhat limited |

 | Slope |0.99 | Water erosion |1.00 | Cutbanks cave |0.50

 | | | Slope |0.99 | |

 | | | | | |

274D2: | | | | | |

 Seaton-------------------|Very limited | |Very limited | |Somewhat limited |

 | Slope |1.00 | Water erosion |1.00 | Slope |0.96

 | | | Slope |1.00 | Cutbanks cave |0.50

 | | | | | |

275A: | | | | | |

 Joy----------------------|Not limited | |Very limited | |Very limited |

 | | | Water erosion |1.00 | Depth to |1.00

 | | | Depth to |1.00 | saturated zone |

 | | | saturated zone | | Cutbanks cave |0.10

 | | | | | |

278A: | | | | | |

 Stronghurst--------------|Not limited | |Very limited | |Very limited |

 | | | Water erosion |1.00 | Depth to |1.00

 | | | Depth to |1.00 | saturated zone |

 | | | saturated zone | | Cutbanks cave |0.10

 | | | | | |

279A: | | | | | |

 Rozetta------------------|Not limited | |Very limited | |Somewhat limited |

 | | | Water erosion |1.00 | Depth to |0.15

 | | | | | saturated zone |

 | | | | | Cutbanks cave |0.10

 | | | | | |

279B: | | | | | |

 Rozetta------------------|Somewhat limited | |Very limited | |Somewhat limited |

 | Slope |0.25 | Water erosion |1.00 | Depth to |0.15

 | | | Slope |0.25 | saturated zone |

 | | | | | Cutbanks cave |0.10

 | | | | | |

280B, 280B2: | | | | | |

 Fayette------------------|Somewhat limited | |Very limited | |Somewhat limited |

 | Slope |0.25 | Water erosion |1.00 | Cutbanks cave |0.10

 | | | Slope |0.25 | |

 | | | | | |

280C2, 280C3: | | | | | |

 Fayette------------------|Somewhat limited | |Very limited | |Somewhat limited |

 | Slope |0.99 | Water erosion |1.00 | Cutbanks cave |0.10

 | | | Slope |0.99 | |

 | | | | | |

317A: | | | | | |

 Millsdale----------------|Very limited | |Very limited | |Very limited |

 | Depth to bedrock |1.00 | Ponding |1.00 | Depth to hard |1.00

 | | | Depth to |1.00 | bedrock |

 | | | saturated zone | | Ponding |1.00

 | | | Depth to bedrock |1.00 | Depth to |1.00

 | | | Water erosion |0.89 | saturated zone |

 | | | | | Too clayey |0.12

 | | | | | Cutbanks cave |0.10

 | | | | | |

430A: | | | | | |

 Raddle-------------------|Not limited | |Very limited | |Somewhat limited |

 | | | Water erosion |1.00 | Cutbanks cave |0.10

 | | | | | |
326 Soil Survey of

Table 17b.--Water Management--Continued

________________________________________________________________________________________________________

 | | |

 Map symbol | Constructing grassed |Constructing terraces and| Tile drains and

 and soil name | waterways and surface | diversions | underground outlets

 | drains | | _____________________________________________________________________________

 | Rating class and |Value| Rating class and |Value| Rating class and |Value

 | limiting features | | limiting features | | limiting features | ________________________________________________________________________________________________________

 | | | | | |

430B: | | | | | |

 Raddle-------------------|Somewhat limited | |Very limited | |Somewhat limited |

 | Slope |0.25 | Water erosion |1.00 | Cutbanks cave |0.10

 | | | Slope |0.25 | |

 | | | | | |

525A: | | | | | |

 Joslin-------------------|Somewhat limited | |Somewhat limited | |Somewhat limited |

 | Depth to bedrock |0.42 | Water erosion |0.89 | Depth to hard |0.42

 | | | Depth to bedrock |0.42 | bedrock |

 | | | | | Cutbanks cave |0.10

 | | | | | |

567C2: | | | | | |

 Elkhart------------------|Somewhat limited | |Very limited | |Somewhat limited |

 | Slope |0.99 | Water erosion |1.00 | Cutbanks cave |0.50

 | | | Slope |0.99 | Depth to |0.16

 | | | | | saturated zone |

 | | | | | |

567D2: | | | | | |

 Elkhart------------------|Very limited | |Very limited | |Somewhat limited |

 | Slope |1.00 | Water erosion |1.00 | Slope |0.96

 | | | Slope |1.00 | Cutbanks cave |0.50

 | | | | | Depth to |0.16

 | | | | | saturated zone |

 | | | | | |

570B: | | | | | |

 Martinsville-------------|Somewhat limited | |Somewhat limited | |Somewhat limited |

 | Slope |0.25 | Water erosion |0.89 | Cutbanks cave |0.10

 | | | Slope |0.25 | |

 | | | | | |

570C3: | | | | | |

 Martinsville-------------|Somewhat limited | |Somewhat limited | |Somewhat limited |

 | Slope |0.99 | Slope |0.99 | Cutbanks cave |0.10

 | | | Water erosion |0.89 | |

 | | | | | |

570D3: | | | | | |

 Martinsville-------------|Very limited | |Very limited | |Somewhat limited |

 | Slope |1.00 | Slope |1.00 | Slope |0.96

 | | | Water erosion |0.89 | Cutbanks cave |0.10

 | | | | | |

647A: | | | | | |

 Lawler-------------------|Not limited | |Very limited | |Very limited |

 | | | Depth to |1.00 | Depth to |1.00

 | | | saturated zone | | saturated zone |

 | | | Too sandy |1.00 | Cutbanks cave |1.00

 | | | Water erosion |0.89 | |

 | | | | | |

671A: | | | | | |

 Biggsville---------------|Not limited | |Very limited | |Somewhat limited |

 | | | Water erosion |1.00 | Depth to |0.15

 | | | | | saturated zone |

 | | | | | Cutbanks cave |0.10

 | | | | | |

671B: | | | | | |

 Biggsville---------------|Somewhat limited | |Very limited | |Somewhat limited |

 | Slope |0.25 | Water erosion |1.00 | Depth to |0.15

 | | | Slope |0.25 | saturated zone |

 | | | | | Cutbanks cave |0.10

 | | | | | |
Rock Island County, Illinois 327

Table 17b.--Water Management--Continued

________________________________________________________________________________________________________

 | | |

 Map symbol | Constructing grassed |Constructing terraces and| Tile drains and

 and soil name | waterways and surface | diversions | underground outlets

 | drains | | _____________________________________________________________________________

 | Rating class and |Value| Rating class and |Value| Rating class and |Value

 | limiting features | | limiting features | | limiting features | ________________________________________________________________________________________________________

 | | | | | |

675A: | | | | | |

 Greenbush----------------|Not limited | |Very limited | |Somewhat limited |

 | | | Water erosion |1.00 | Depth to |0.15

 | | | | | saturated zone |

 | | | | | Cutbanks cave |0.10

 | | | | | |

675B: | | | | | |

 Greenbush----------------|Somewhat limited | |Very limited | |Somewhat limited |

 | Slope |0.25 | Water erosion |1.00 | Depth to |0.15

 | | | Slope |0.25 | saturated zone |

 | | | | | Cutbanks cave |0.10

 | | | | | |

689B: | | | | | |

 Coloma-------------------|Somewhat limited | |Very limited | |Very limited |

 | Slope |0.36 | Too sandy |1.00 | Cutbanks cave |1.00

 | | | Slope |0.36 | |

 | | | | | |

689D: | | | | | |

 Coloma-------------------|Very limited | |Very limited | |Very limited |

 | Slope |1.00 | Too sandy |1.00 | Cutbanks cave |1.00

 | | | Slope |1.00 | Slope |0.37

 | | | | | |

705A: | | | | | |

 Buckhart-----------------|Not limited | |Very limited | |Somewhat limited |

 | | | Water erosion |1.00 | Depth to |0.99

 | | | Depth to |1.00 | saturated zone |

 | | | saturated zone | | Cutbanks cave |0.10

 | | | | | |

727A: | | | | | |

 Waukee-------------------|Not limited | |Very limited | |Very limited |

 | | | Too sandy |1.00 | Cutbanks cave |1.00

 | | | Water erosion |0.89 | |

 | | | | | |

741F: | | | | | |

 Oakville-----------------|Very limited | |Very limited | |Very limited |

 | Slope |1.00 | Slope |1.00 | Slope |1.00

 | | | Too sandy |1.00 | Cutbanks cave |1.00

 | | | | | |

763A: | | | | | |

 Joslin-------------------|Not limited | |Somewhat limited | |Somewhat limited |

 | | | Water erosion |0.89 | Cutbanks cave |0.10

 | | | | | Too clayey |0.04

 | | | | | |

763B: | | | | | |

 Joslin-------------------|Somewhat limited | |Somewhat limited | |Somewhat limited |

 | Slope |0.25 | Water erosion |0.89 | Cutbanks cave |0.10

 | | | Slope |0.25 | Too clayey |0.04

 | | | | | |

764A: | | | | | |

 Coyne--------------------|Not limited | |Somewhat limited | |Somewhat limited |

 | | | Water erosion |0.17 | Cutbanks cave |0.10

 | | | | | |

764C: | | | | | |

 Coyne--------------------|Somewhat limited | |Somewhat limited | |Very limited |

 | Slope |0.99 | Slope |0.99 | Cutbanks cave |1.00

 | | | Water erosion |0.17 | Depth to dense |0.50

 | | | | | layer |

 | | | | | |

774A: | | | | | |

 Saude--------------------|Not limited | |Very limited | |Very limited |

 | | | Too sandy |1.00 | Cutbanks cave |1.00

 | | | Water erosion |0.89 | |

 | | | | | |
328 Soil Survey of

Table 17b.--Water Management--Continued

________________________________________________________________________________________________________

 | | |

 Map symbol | Constructing grassed |Constructing terraces and| Tile drains and

 and soil name | waterways and surface | diversions | underground outlets

 | drains | | _____________________________________________________________________________

 | Rating class and |Value| Rating class and |Value| Rating class and |Value

 | limiting features | | limiting features | | limiting features | ________________________________________________________________________________________________________

 | | | | | |

800C: | | | | | |

 Psamments----------------|Very limited | |Very limited | |Very limited |

 | Slope |1.00 | Too sandy |1.00 | Cutbanks cave |1.00

 | | | Slope |1.00 | Slope |0.09

 | | | | | |

802B: | | | | | |

 Orthents-----------------|Somewhat limited | |Very limited | |Somewhat limited |

 | Slope |0.36 | Water erosion |1.00 | Cutbanks cave |0.10

 | | | Slope |0.36 | |

 | | | | | |

864: | | | | | |

 Pits, quarries-----------|Not rated | |Not rated | |Not rated |

 | | | | | |

865: | | | | | |

 Pits, gravel-------------|Not rated | |Not rated | |Not rated |

 | | | | | |

898F3: | | | | | |

 Hickory------------------|Very limited | |Very limited | |Very limited |

 | Slope |1.00 | Slope |1.00 | Slope |1.00

 | | | Water erosion |0.56 | Cutbanks cave |0.10

 | | | | | |

 Sylvan-------------------|Very limited | |Very limited | |Very limited |

 | Slope |1.00 | Water erosion |1.00 | Slope |1.00

 | | | Slope |1.00 | Cutbanks cave |0.50

 | | | | | |

898G: | | | | | |

 Hickory------------------|Very limited | |Very limited | |Very limited |

 | Slope |1.00 | Slope |1.00 | Slope |1.00

 | | | Water erosion |0.89 | Cutbanks cave |0.10

 | | | | | |

 Sylvan-------------------|Very limited | |Very limited | |Very limited |

 | Slope |1.00 | Water erosion |1.00 | Slope |1.00

 | | | Slope |1.00 | Cutbanks cave |0.50

 | | | | | |

913D2: | | | | | |

 Marseilles---------------|Very limited | |Very limited | |Somewhat limited |

 | Slope |1.00 | Water erosion |1.00 | Slope |0.96

 | Depth to soft |0.42 | Slope |1.00 | Depth to soft |0.42

 | bedrock | | Depth to soft |0.42 | bedrock |

 | | | bedrock | | Cutbanks cave |0.10

 | | | | | |

 Hickory------------------|Very limited | |Very limited | |Somewhat limited |

 | Slope |1.00 | Slope |1.00 | Slope |0.96

 | | | Water erosion |0.89 | Cutbanks cave |0.10

 | | | | | |

913F: | | | | | |

 Marseilles---------------|Very limited | |Very limited | |Very limited |

 | Slope |1.00 | Water erosion |1.00 | Slope |1.00

 | Depth to soft |0.42 | Slope |1.00 | Depth to soft |0.42

 | bedrock | | Depth to soft |0.42 | bedrock |

 | | | bedrock | | Cutbanks cave |0.10

 | | | | | |

 Hickory------------------|Very limited | |Very limited | |Very limited |

 | Slope |1.00 | Slope |1.00 | Slope |1.00

 | | | Water erosion |0.89 | Cutbanks cave |0.10

 | | | | | |

913G: | | | | | |

 Marseilles---------------|Very limited | |Very limited | |Very limited |

 | Slope |1.00 | Water erosion |1.00 | Slope |1.00

 | Depth to soft |0.42 | Slope |1.00 | Depth to soft |0.42

 | bedrock | | Depth to soft |0.42 | bedrock |

 | | | bedrock | | Cutbanks cave |0.10

 | | | | | |
Rock Island County, Illinois 329

Table 17b.--Water Management--Continued

________________________________________________________________________________________________________

 | | |

 Map symbol | Constructing grassed |Constructing terraces and| Tile drains and

 and soil name | waterways and surface | diversions | underground outlets

 | drains | | _____________________________________________________________________________

 | Rating class and |Value| Rating class and |Value| Rating class and |Value

 | limiting features | | limiting features | | limiting features | ________________________________________________________________________________________________________

 | | | | | |

913G: | | | | | |

 Hickory------------------|Very limited | |Very limited | |Very limited |

 | Slope |1.00 | Slope |1.00 | Slope |1.00

 | | | Water erosion |0.89 | Cutbanks cave |0.10

 | | | | | |

917C2: | | | | | |

 Oakville-----------------|Somewhat limited | |Very limited | |Very limited |

 | Slope |0.99 | Too sandy |1.00 | Cutbanks cave |1.00

 | | | Slope |0.99 | |

 | | | | | |

 Tell---------------------|Somewhat limited | |Very limited | |Very limited |

 | Slope |0.99 | Water erosion |1.00 | Cutbanks cave |1.00

 | | | Slope |0.99 | |

 | | | | | |

917D2: | | | | | |

 Oakville-----------------|Very limited | |Very limited | |Very limited |

 | Slope |1.00 | Slope |1.00 | Cutbanks cave |1.00

 | | | Too sandy |1.00 | Slope |0.96

 | | | | | |

 Tell---------------------|Very limited | |Very limited | |Very limited |

 | Slope |1.00 | Water erosion |1.00 | Cutbanks cave |1.00

 | | | Slope |1.00 | Slope |0.96

 | | | Too sandy |1.00 | |

 | | | | | |

943D2: | | | | | |

 Seaton-------------------|Very limited | |Very limited | |Somewhat limited |

 | Slope |1.00 | Water erosion |1.00 | Slope |0.96

 | | | Slope |1.00 | Cutbanks cave |0.50

 | | | | | |

 Timula-------------------|Very limited | |Very limited | |Somewhat limited |

 | Slope |1.00 | Water erosion |1.00 | Slope |0.96

 | | | Slope |1.00 | Cutbanks cave |0.50

 | | | | | |

943F2: | | | | | |

 Seaton-------------------|Very limited | |Very limited | |Very limited |

 | Slope |1.00 | Water erosion |1.00 | Slope |1.00

 | | | Slope |1.00 | Cutbanks cave |0.50

 | | | | | |

 Timula-------------------|Very limited | |Very limited | |Very limited |

 | Slope |1.00 | Water erosion |1.00 | Slope |1.00

 | | | Slope |1.00 | Cutbanks cave |0.50

 | | | | | |

944D2: | | | | | |

 Velma--------------------|Very limited | |Very limited | |Somewhat limited |

 | Slope |1.00 | Slope |1.00 | Slope |0.96

 | | | Water erosion |0.89 | Cutbanks cave |0.10

 | | | | | |

 Coatsburg----------------|Very limited | |Very limited | |Very limited |

 | Slope |1.00 | Water erosion |1.00 | Depth to |1.00

 | | | Slope |1.00 | saturated zone |

 | | | Depth to |1.00 | Slope |0.96

 | | | saturated zone | | Cutbanks cave |0.10

 | | | | | Too clayey |0.01

 | | | | | |

946D3: | | | | | |

 Hickory------------------|Very limited | |Very limited | |Somewhat limited |

 | Slope |1.00 | Slope |1.00 | Slope |0.96

 | | | Water erosion |0.56 | Cutbanks cave |0.10

 | | | | | |
330 Soil Survey of

Table 17b.--Water Management--Continued

________________________________________________________________________________________________________

 | | |

 Map symbol | Constructing grassed |Constructing terraces and| Tile drains and

 and soil name | waterways and surface | diversions | underground outlets

 | drains | | _____________________________________________________________________________

 | Rating class and |Value| Rating class and |Value| Rating class and |Value

 | limiting features | | limiting features | | limiting features | ________________________________________________________________________________________________________

 | | | | | |

946D3: | | | | | |

 Atlas--------------------|Very limited | |Very limited | |Very limited |

 | Slope |1.00 | Water erosion |1.00 | Depth to |1.00

 | | | Slope |1.00 | saturated zone |

 | | | Depth to |1.00 | Slope |0.96

 | | | saturated zone | | Cutbanks cave |0.10

 | | | | | Too clayey |0.02

 | | | | | |

946F3: | | | | | |

 Hickory------------------|Very limited | |Very limited | |Very limited |

 | Slope |1.00 | Slope |1.00 | Slope |1.00

 | | | Water erosion |0.56 | Cutbanks cave |0.10

 | | | | | |

 Atlas--------------------|Very limited | |Very limited | |Very limited |

 | Slope |1.00 | Water erosion |1.00 | Slope |1.00

 | | | Slope |1.00 | Depth to |1.00

 | | | Depth to |1.00 | saturated zone |

 | | | saturated zone | | Cutbanks cave |0.10

 | | | | | Too clayey |0.02

 | | | | | |

959G: | | | | | |

 Strawn-------------------|Very limited | |Very limited | |Very limited |

 | Slope |1.00 | Slope |1.00 | Slope |1.00

 | | | Water erosion |0.89 | Cutbanks cave |0.10

 | | | | | |

 Chute--------------------|Very limited | |Very limited | |Very limited |

 | Slope |1.00 | Slope |1.00 | Slope |1.00

 | | | Too sandy |1.00 | Cutbanks cave |1.00

 | | | | | |

960D2: | | | | | |

 Hickory------------------|Very limited | |Very limited | |Somewhat limited |

 | Slope |1.00 | Slope |1.00 | Slope |0.96

 | | | Water erosion |0.89 | Cutbanks cave |0.10

 | | | | | |

 Sylvan-------------------|Very limited | |Very limited | |Somewhat limited |

 | Slope |1.00 | Water erosion |1.00 | Slope |0.96

 | | | Slope |1.00 | Cutbanks cave |0.50

 | | | | | |

 Fayette------------------|Very limited | |Very limited | |Somewhat limited |

 | Slope |1.00 | Water erosion |1.00 | Slope |0.96

 | | | Slope |1.00 | Cutbanks cave |0.10

 | | | | | |

960D3: | | | | | |

 Hickory------------------|Very limited | |Very limited | |Somewhat limited |

 | Slope |1.00 | Slope |1.00 | Slope |0.96

 | | | Water erosion |0.56 | Cutbanks cave |0.10

 | | | | | |

 Sylvan-------------------|Very limited | |Very limited | |Somewhat limited |

 | Slope |1.00 | Water erosion |1.00 | Slope |0.96

 | | | Slope |1.00 | Cutbanks cave |0.50

 | | | | | |

 Fayette------------------|Very limited | |Very limited | |Somewhat limited |

 | Slope |1.00 | Water erosion |1.00 | Slope |0.96

 | | | Slope |1.00 | Cutbanks cave |0.10

 | | | | | |

960F: | | | | | |

 Hickory------------------|Very limited | |Very limited | |Very limited |

 | Slope |1.00 | Slope |1.00 | Slope |1.00

 | | | Water erosion |0.89 | Cutbanks cave |0.10

 | | | | | |
Rock Island County, Illinois 331

Table 17b.--Water Management--Continued

________________________________________________________________________________________________________

 | | |

 Map symbol | Constructing grassed |Constructing terraces and| Tile drains and

 and soil name | waterways and surface | diversions | underground outlets

 | drains | | _____________________________________________________________________________

 | Rating class and |Value| Rating class and |Value| Rating class and |Value

 | limiting features | | limiting features | | limiting features | ________________________________________________________________________________________________________

 | | | | | |

960F: | | | | | |

 Sylvan-------------------|Very limited | |Very limited | |Very limited |

 | Slope |1.00 | Water erosion |1.00 | Slope |1.00

 | | | Slope |1.00 | Cutbanks cave |0.10

 | | | | | |

 Fayette------------------|Very limited | |Very limited | |Very limited |

 | Slope |1.00 | Water erosion |1.00 | Slope |1.00

 | | | Slope |1.00 | Cutbanks cave |0.10

 | | | | | |

961A: | | | | | |

 Burkhardt----------------|Not limited | |Very limited | |Very limited |

 | | | Too sandy |1.00 | Cutbanks cave |1.00

 | | | Water erosion |0.17 | |

 | | | | | |

 Saude--------------------|Not limited | |Very limited | |Very limited |

 | | | Too sandy |1.00 | Cutbanks cave |1.00

 | | | Water erosion |0.89 | |

 | | | | | |

962F: | | | | | |

 Sylvan-------------------|Very limited | |Very limited | |Very limited |

 | Slope |1.00 | Water erosion |1.00 | Slope |1.00

 | | | Slope |1.00 | Cutbanks cave |0.10

 | | | | | |

 Bold---------------------|Very limited | |Very limited | |Very limited |

 | Slope |1.00 | Water erosion |1.00 | Slope |1.00

 | | | Slope |1.00 | Cutbanks cave |0.10

 | | | | | |

1076A: | | | | | |

 Otter--------------------|Not limited | |Very limited | |Very limited |

 | | | Ponding |1.00 | Ponding |1.00

 | | | Depth to |1.00 | Flooding |1.00

 | | | saturated zone | | Depth to |1.00

 | | | Water erosion |0.89 | saturated zone |

 | | | | | Cutbanks cave |0.10

 | | | | | |

1082A: | | | | | |

 Millington---------------|Not limited | |Very limited | |Very limited |

 | | | Ponding |1.00 | Ponding |1.00

 | | | Depth to |1.00 | Flooding |1.00

 | | | saturated zone | | Depth to |1.00

 | | | Water erosion |0.89 | saturated zone |

 | | | | | Cutbanks cave |0.10

 | | | | | |

1107A: | | | | | |

 Sawmill------------------|Not limited | |Very limited | |Very limited |

 | | | Ponding |1.00 | Ponding |1.00

 | | | Depth to |1.00 | Flooding |1.00

 | | | saturated zone | | Depth to |1.00

 | | | Water erosion |0.56 | saturated zone |

 | | | | | Cutbanks cave |0.10

 | | | | | |

1334A: | | | | | |

 Birds--------------------|Not limited | |Very limited | |Very limited |

 | | | Water erosion |1.00 | Ponding |1.00

 | | | Ponding |1.00 | Flooding |1.00

 | | | Depth to |1.00 | Depth to |1.00

 | | | saturated zone | | saturated zone |

 | | | | | Cutbanks cave |0.10

 | | | | | |
332 Soil Survey of

Table 17b.--Water Management--Continued

________________________________________________________________________________________________________

 | | |

 Map symbol | Constructing grassed |Constructing terraces and| Tile drains and

 and soil name | waterways and surface | diversions | underground outlets

 | drains | | _____________________________________________________________________________

 | Rating class and |Value| Rating class and |Value| Rating class and |Value

 | limiting features | | limiting features | | limiting features | ________________________________________________________________________________________________________

 | | | | | |

1400A: | | | | | |

 Calco--------------------|Not limited | |Very limited | |Very limited |

 | | | Ponding |1.00 | Ponding |1.00

 | | | Depth to |1.00 | Flooding |1.00

 | | | saturated zone | | Depth to |1.00

 | | | Water erosion |0.56 | saturated zone |

 | | | | | Cutbanks cave |0.10

 | | | | | |

1654A: | | | | | |

 Moline-------------------|Not limited | |Very limited | |Very limited |

 | | | Ponding |1.00 | Ponding |1.00

 | | | Depth to |1.00 | Flooding |1.00

 | | | saturated zone | | Depth to |1.00

 | | | Water erosion |0.56 | saturated zone |

 | | | | | Too clayey |0.88

 | | | | | Cutbanks cave |0.10

 | | | | | |

3074A: | | | | | |

 Radford------------------|Not limited | |Very limited | |Very limited |

 | | | Water erosion |1.00 | Flooding |1.00

 | | | Depth to |1.00 | Depth to |1.00

 | | | saturated zone | | saturated zone |

 | | | | | Cutbanks cave |0.10

 | | | | | |

3076A: | | | | | |

 Otter--------------------|Not limited | |Very limited | |Very limited |

 | | | Ponding |1.00 | Flooding |1.00

 | | | Depth to |1.00 | Depth to |1.00

 | | | saturated zone | | saturated zone |

 | | | Water erosion |0.89 | Ponding |1.00

 | | | | | Cutbanks cave |0.10

 | | | | | |

3082A: | | | | | |

 Millington---------------|Not limited | |Very limited | |Very limited |

 | | | Depth to |1.00 | Flooding |1.00

 | | | saturated zone | | Depth to |1.00

 | | | Water erosion |0.89 | saturated zone |

 | | | | | Cutbanks cave |0.10

 | | | | | |

3083A: | | | | | |

 Wabash-------------------|Not limited | |Very limited | |Very limited |

 | | | Ponding |1.00 | Ponding |1.00

 | | | Depth to |1.00 | Flooding |1.00

 | | | saturated zone | | Depth to |1.00

 | | | Water erosion |0.56 | saturated zone |

 | | | | | Too clayey |0.50

 | | | | | Cutbanks cave |0.10

 | | | | | |

3107A: | | | | | |

 Sawmill------------------|Not limited | |Very limited | |Very limited |

 | | | Depth to |1.00 | Flooding |1.00

 | | | saturated zone | | Depth to |1.00

 | | | Water erosion |0.56 | saturated zone |

 | | | | | Cutbanks cave |0.10

 | | | | | |

3239A: | | | | | |

 Dorchester---------------|Not limited | |Very limited | |Very limited |

 | | | Water erosion |1.00 | Flooding |1.00

 | | | | | Depth to |0.16

 | | | | | saturated zone |

 | | | | | Cutbanks cave |0.10

 | | | | | |
Rock Island County, Illinois 333

Table 17b.--Water Management--Continued

________________________________________________________________________________________________________

 | | |

 Map symbol | Constructing grassed |Constructing terraces and| Tile drains and

 and soil name | waterways and surface | diversions | underground outlets

 | drains | | _____________________________________________________________________________

 | Rating class and |Value| Rating class and |Value| Rating class and |Value

 | limiting features | | limiting features | | limiting features | ________________________________________________________________________________________________________

 | | | | | |

3400A: | | | | | |

 Calco--------------------|Not limited | |Very limited | |Very limited |

 | | | Depth to |1.00 | Ponding |1.00

 | | | saturated zone | | Flooding |1.00

 | | | Water erosion |0.56 | Depth to |1.00

 | | | | | saturated zone |

 | | | | | Cutbanks cave |0.10

 | | | | | |

3415A: | | | | | |

 Orion--------------------|Not limited | |Very limited | |Very limited |

 | | | Water erosion |1.00 | Flooding |1.00

 | | | Depth to |1.00 | Depth to |1.00

 | | | saturated zone | | saturated zone |

 | | | | | Cutbanks cave |1.00

 | | | | | |

3428A: | | | | | |

 Coffeen------------------|Not limited | |Very limited | |Very limited |

 | | | Water erosion |1.00 | Flooding |1.00

 | | | Depth to |1.00 | Depth to |1.00

 | | | saturated zone | | saturated zone |

 | | | | | Cutbanks cave |0.10

 | | | | | |

3451A: | | | | | |

 Lawson-------------------|Not limited | |Very limited | |Very limited |

 | | | Depth to |1.00 | Flooding |1.00

 | | | saturated zone | | Depth to |1.00

 | | | Water erosion |0.89 | saturated zone |

 | | | | | Cutbanks cave |0.10

 | | | | | |

3646L: | | | | | |

 Fluvaquents--------------|Not limited | |Very limited | |Very limited |

 | | | Water erosion |1.00 | Ponding |1.00

 | | | Ponding |1.00 | Flooding |1.00

 | | | Depth to |1.00 | Depth to |1.00

 | | | saturated zone | | saturated zone |

 | | | | | Cutbanks cave |0.10

 | | | | | |

7076A: | | | | | |

 Otter--------------------|Not limited | |Very limited | |Very limited |

 | | | Ponding |1.00 | Ponding |1.00

 | | | Depth to |1.00 | Depth to |1.00

 | | | saturated zone | | saturated zone |

 | | | Water erosion |0.89 | Cutbanks cave |0.10

 | | | | | |

7083A: | | | | | |

 Wabash-------------------|Not limited | |Very limited | |Very limited |

 | | | Ponding |1.00 | Ponding |1.00

 | | | Depth to |1.00 | Depth to |1.00

 | | | saturated zone | | saturated zone |

 | | | Water erosion |0.56 | Too clayey |0.50

 | | | | | Cutbanks cave |0.10

 | | | | | |

7107A: | | | | | |

 Sawmill------------------|Not limited | |Very limited | |Very limited |

 | | | Ponding |1.00 | Ponding |1.00

 | | | Depth to |1.00 | Depth to |1.00

 | | | saturated zone | | saturated zone |

 | | | Water erosion |0.89 | Cutbanks cave |0.10

 | | | | | |
334 Soil Survey of

Table 17b.--Water Management--Continued

________________________________________________________________________________________________________

 | | |

 Map symbol | Constructing grassed |Constructing terraces and| Tile drains and

 and soil name | waterways and surface | diversions | underground outlets

 | drains | | _____________________________________________________________________________

 | Rating class and |Value| Rating class and |Value| Rating class and |Value

 | limiting features | | limiting features | | limiting features | ________________________________________________________________________________________________________

 | | | | | |

7239A: | | | | | |

 Dorchester---------------|Not limited | |Very limited | |Somewhat limited |

 | | | Water erosion |1.00 | Depth to |0.16

 | | | | | saturated zone |

 | | | | | Cutbanks cave |0.10

 | | | | | |

7304A: | | | | | |

 Landes-------------------|Not limited | |Very limited | |Very limited |

 | | | Too sandy |1.00 | Cutbanks cave |1.00

 | | | Water erosion |0.17 | Depth to |0.15

 | | | | | saturated zone |

 | | | | | |

7415A: | | | | | |

 Orion--------------------|Not limited | |Very limited | |Very limited |

 | | | Water erosion |1.00 | Cutbanks cave |1.00

 | | | Depth to |1.00 | Depth to |1.00

 | | | saturated zone | | saturated zone |

 | | | | | |

7428A: | | | | | |

 Coffeen------------------|Not limited | |Very limited | |Very limited |

 | | | Water erosion |1.00 | Depth to |1.00

 | | | Depth to |1.00 | saturated zone |

 | | | saturated zone | | Cutbanks cave |0.10

 | | | | | |

7451A: | | | | | |

 Lawson-------------------|Not limited | |Very limited | |Very limited |

 | | | Depth to |1.00 | Depth to |1.00

 | | | saturated zone | | saturated zone |

 | | | Water erosion |0.89 | Cutbanks cave |0.10

 | | | | | |

7654A: | | | | | |

 Moline-------------------|Not limited | |Very limited | |Very limited |

 | | | Ponding |1.00 | Ponding |1.00

 | | | Depth to |1.00 | Depth to |1.00

 | | | saturated zone | | saturated zone |

 | | | Water erosion |0.56 | Too clayey |0.88

 | | | | | Cutbanks cave |0.10

 | | | | | |

8107+: | | | | | |

 Sawmill------------------|Not limited | |Very limited | |Very limited |

 | | | Depth to |1.00 | Depth to |1.00

 | | | saturated zone | | saturated zone |

 | | | Water erosion |0.89 | Flooding |0.60

 | | | | | Cutbanks cave |0.10

 | | | | | |

8302A: | | | | | |

 Ambraw-------------------|Not limited | |Very limited | |Very limited |

 | | | Ponding |1.00 | Ponding |1.00

 | | | Depth to |1.00 | Depth to |1.00

 | | | saturated zone | | saturated zone |

 | | | Water erosion |0.89 | Flooding |0.60

 | | | | | Cutbanks cave |0.10

 | | | | | |

8400A: | | | | | |

 Calco--------------------|Not limited | |Very limited | |Very limited |

 | | | Ponding |1.00 | Ponding |1.00

 | | | Depth to |1.00 | Depth to |1.00

 | | | saturated zone | | saturated zone |

 | | | Water erosion |0.56 | Flooding |0.60

 | | | | | Cutbanks cave |0.10

 | | | | | |
Rock Island County, Illinois 335

Table 17b.--Water Management--Continued

________________________________________________________________________________________________________

 | | |

 Map symbol | Constructing grassed |Constructing terraces and| Tile drains and

 and soil name | waterways and surface | diversions | underground outlets

 | drains | | _____________________________________________________________________________

 | Rating class and |Value| Rating class and |Value| Rating class and |Value

 | limiting features | | limiting features | | limiting features | ________________________________________________________________________________________________________

 | | | | | |

8404A: | | | | | |

 Titus--------------------|Not limited | |Very limited | |Very limited |

 | | | Ponding |1.00 | Ponding |1.00

 | | | Depth to |1.00 | Depth to |1.00

 | | | saturated zone | | saturated zone |

 | | | Water erosion |0.89 | Flooding |0.60

 | | | | | Cutbanks cave |0.10

 | | | | | | ________________________________________________________________________________________________________
Table 18.--Engineering Index Properties (Absence of an entry indicates that the data were not estimated. The representative values for USDA texture 

 AASHTO classifications are designated with an asterisk. Representative values are indicative of condit commonly) ___________________________________________________________________________________________________________

 | | | Classification | Fragments | Percentage passing  Map symbol | Depth | USDA texture |_________________________|_____________| sieve number--  and soil name | | | | | >10 | 3-10 |_______________________ | | | Unified | AASHTO |inches|inches| 4 | 10 | 40 | 2___________________________________________________________________________________________________________ | In | | | | Pct | Pct | | | |  | | | | | | | | | | 8D2: | | | | | | | | | |  Hickory---------| 0-6 |Silt loam* |CL*, CL-ML, |A-6*, A-4 | 0 | 0-5 |95-100|90-100|75-100|55 | | | ML | | | | | | |  | 6-51 |Clay loam*, silty|CL* |A-6*, A-7 | 0-1 | 0-5 |85-100|70-100|65-95 |50 | | clay loam, | | | | | | | |  | | gravelly clay | | | | | | | |  | | loam | | | | | | | |  | 51-60 |Loam*, clay loam,|CL-ML*, CL, |A-6*, A-4, | 0-1 | 0-5 |85-100|70-95 |45-95 |25 | | gravelly clay | SC, SC-SM | A-2 | | | | | |  | | loam | | | | | | | |  | | | | | | | | | | 8D3: | | | | | | | | | |  Hickory---------| 0-5 |Clay loam* |CL* |A-6*, A-7 | 0 | 0-5 |95-100|90-100|80-100|65 | 5-30 |Clay loam*, silty|CL* |A-6*, A-7 | 0-1 | 0-5 |85-100|70-100|65-95 |50 | | clay loam, | | | | | | | |  | | gravelly clay | | | | | | | |  | | loam | | | | | | | |  | 30-40 |Clay loam*, loam,|CL*, SC |A-6*, A-4 | 0-1 | 0-5 |85-100|70-100|65-95 |50 | | gravelly clay | | | | | | | |  | | loam | | | | | | | |  | 40-60 |Loam*, clay loam,|CL-ML*, CL, |A-6*, A-4, | 0-1 | 0-5 |85-100|70-95 |45-95 |25 | | gravelly clay | SC, SC-SM | A-2 | | | | | |  | | loam | | | | | | | |  | | | | | | | | | | 8F: | | | | | | | | | |  Hickory---------| 0-12 |Silt loam* |CL*, CL-ML, |A-4*, A-6 | 0 | 0-5 |95-100|90-100|75-100|55 | | | ML | | | | | | |  | 12-53 |Clay loam*, silty|CL* |A-6*, A-7 | 0-1 | 0-5 |85-100|70-100|65-95 |50 | | clay loam, | | | | | | | |  | | gravelly clay | | | | | | | |  | | loam | | | | | | | |  | 53-58 |Loam*, sandy |CL-ML*, CL, |A-6*, A-4, | 0-1 | 0-5 |85-100|70-95 |45-95 |25 | | loam, gravelly | SC, SC-SM | A-2 | | | | | |  | | clay loam | | | | | | | |  | 58-63 |Loam*, sandy |CL-ML*, CL, |A-6*, A-4, | 0-1 | 0-5 |85-100|70-95 |45-95 |25 | | loam, gravelly | SC, SC-SM | A-2 | | | | | |  | | clay loam | | | | | | | |  | | | | | | | | | | 
Table 18.--Engineering Index Properties--Continued __________________________________________________________________________________________________________

 | | | Classification | Fragments | Percentage passing  Map symbol | Depth | USDA texture |_________________________|_____________| sieve number--  and soil name | | | | | >10 | 3-10 |______________________ | | | Unified | AASHTO |inches|inches| 4 | 10 | 40 | __________________________________________________________________________________________________________ | In | | | | Pct | Pct | | | |  | | | | | | | | | | 8F3: | | | | | | | | | |  Hickory---------| 0-6 |Clay loam* |CL* |A-6*, A-7 | 0 | 0-5 |95-100|90-100|80-100|6 | 6-42 |Clay loam*, silty|CL* |A-6*, A-7 | 0-1 | 0-5 |85-100|70-100|65-95 |5 | | clay loam, | | | | | | | |  | | gravelly clay | | | | | | | |  | | loam | | | | | | | |  | 42-60 |Loam*, clay loam,|CL-ML*, CL, |A-6*, A-4, | 0-1 | 0-5 |85-100|70-95 |45-95 |2 | | gravelly clay | SC, SC-SM | A-2 | | | | | |  | | loam | | | | | | | |  | | | | | | | | | | 19C3: | | | | | | | | | |  Sylvan----------| 0-7 |Silty clay loam* |CL* |A-7-6*, A-6| 0 | 0 | 100 | 100 | 100 |9 | 7-37 |Silty clay loam*,|CL* |A-7-6*, A-6| 0 | 0 | 100 | 100 | 100 |9 | | silt loam | | | | | | | |  | 37-60 |Silt loam*, silt |CL*, CL-ML |A-6*, A-4 | 0 | 0 | 100 | 100 |95-100|9 | | | | | | | | | | 19D: | | | | | | | | | |  Sylvan----------| 0-5 |Silt loam* |CL*, CL-ML |A-4*, A-6 | 0 | 0 | 100 | 100 | 100 |9 | 5-10 |Silt loam* |CL*, ML |A-6*, A-4 | 0 | 0 | 100 | 100 | 100 |9 | 10-35 |Silty clay loam*,|CL* |A-7-6*, A-6| 0 | 0 | 100 | 100 | 100 |9 | | silt loam | | | | | | | |  | 35-60 |Silt loam*, silt |CL*, CL-ML |A-6*, A-4 | 0 | 0 | 100 | 100 |95-100|9 | | | | | | | | | | 19D3: | | | | | | | | | |  Sylvan----------| 0-9 |Silty clay loam* |CL* |A-7-6*, A-6| 0 | 0 | 100 | 100 | 100 |9 | 9-28 |Silty clay loam*,|CL* |A-7-6*, A-6| 0 | 0 | 100 | 100 | 100 |9 | | silt loam | | | | | | | |  | 28-60 |Silt loam*, silt |CL*, CL-ML |A-6*, A-4 | 0 | 0 | 100 | 100 |95-100|9 | | | | | | | | | | 19F: | | | | | | | | | |  Sylvan----------| 0-5 |Silt loam* |CL*, CL-ML |A-4*, A-6 | 0 | 0 | 100 | 100 | 100 |9 | 5-10 |Silt loam* |CL*, ML |A-6*, A-4 | 0 | 0 | 100 | 100 | 100 |9 | 10-27 |Silty clay loam*,|CL* |A-7-6*, A-6| 0 | 0 | 100 | 100 | 100 |9 | | silt loam | | | | | | | |  | 27-80 |Silt loam* |CL*, CL-ML |A-6*, A-4 | 0 | 0 | 100 | 100 |95-100|9 | | | | | | | | | | 19F3: | | | | | | | | | |  Sylvan----------| 0-6 |Silty clay loam* |CL* |A-7-6*, A-6| 0 | 0 | 100 | 100 | 100 |9 | 6-30 |Silty clay loam*,|CL* |A-7-6*, A-6| 0 | 0 | 100 | 100 | 100 |9 | | silt loam | | | | | | | |  | 30-60 |Silt loam*, silt |CL*, CL-ML |A-6*, A-4 | 0 | 0 | 100 | 100 |95-100|9 | | | | | | | | | | 
Table 18.--Engineering Index Properties--Continued ___________________________________________________________________________________________________________

 | | | Classification | Fragments | Percentage passing  Map symbol | Depth | USDA texture |_________________________|_____________| sieve number--  and soil name | | | | | >10 | 3-10 |_______________________ | | | Unified | AASHTO |inches|inches| 4 | 10 | 40 | 2___________________________________________________________________________________________________________ | In | | | | Pct | Pct | | | |  | | | | | | | | | | 45A: | | | | | | | | | |  Denny-----------| 0-9 |Silt loam* |CL* |A-6*, A-4 | 0 | 0 | 100 | 100 |95-100|95 | 9-22 |Silt loam* |CL*, CL-ML |A-4*, A-6 | 0 | 0 | 100 | 100 |95-100|95 | 22-45 |Silty clay loam*,|CH*, CL |A-7-6*, A-6| 0 | 0 | 100 | 100 |95-100|95 | | silty clay | | | | | | | |  | 45-60 |Silty clay loam*,|CL* |A-6* | 0 | 0 | 100 | 100 |95-100|95 | | silt loam | | | | | | | |  | | | | | | | | | | 51A: | | | | | | | | | |  Muscatune-------| 0-16 |Silt loam* |CL*, CL-ML, |A-4*, A-6 | 0 | 0 | 100 | 100 |97-100|95 | | | ML | | | | | | |  | 16-22 |Silty clay loam*,|CL*, ML |A-6* | 0 | 0 | 100 | 100 |97-100|95 | | silt loam | | | | | | | |  | 22-46 |Silty clay loam* |CL*, ML |A-7-6*, A-6| 0 | 0 | 100 | 100 |97-100|95 | 46-60 |Silt loam*, silty|CL*, ML |A-6*, A-4 | 0 | 0 | 100 | 100 |96-100|93 | | clay loam | | | | | | | |  | | | | | | | | | | 61A: | | | | | | | | | |  Atterberry------| 0-9 |Silt loam* |CL*, CL-ML, |A-6*, A-4 | 0 | 0 | 100 | 100 |95-100|95 | | | ML | | | | | | |  | 9-17 |Silt loam* |CL*, CL-ML |A-6*, A-4 | 0 | 0 | 100 | 100 |95-100|95 | 17-48 |Silty clay loam*,|CL*, ML |A-7-6*, A-6| 0 | 0 | 100 | 100 |95-100|95 | | silt loam | | | | | | | |  | 48-60 |Silt loam* |CL*, ML |A-6*, A-4 | 0 | 0 | 100 | 100 |95-100|95 | | | | | | | | | | 68A: | | | | | | | | | |  Sable-----------| 0-17 |Silty clay loam* |CH*, CL, MH, |A-7-6* | 0 | 0 | 100 | 100 |95-100|95 | | | ML | | | | | | |  | 17-23 |Silty clay loam* |CH*, CL, MH, |A-7-6* | 0 | 0 | 100 | 100 |95-100|95 | | | ML | | | | | | |  | 23-60 |Silty clay loam*,|CL*, CH |A-7-6* | 0 | 0 | 100 | 100 |95-100|95 | | silt loam | | | | | | | |  | | | | | | | | | | 86B: | | | | | | | | | |  Osco------------| 0-14 |Silt loam* |CL*, ML |A-6*, A-4 | 0 | 0 | 100 | 100 | 100 |95 | 14-55 |Silty clay loam*,|CL* |A-7-6*, A-6| 0 | 0 | 100 | 100 | 100 |95 | | silt loam | | | | | | | |  | 55-60 |Silt loam*, silty|CL*, ML |A-6*, A-4 | 0 | 0 | 100 | 100 | 100 |95 | | clay loam | | | | | | | |  | | | | | | | | | | 86C2: | | | | | | | | | |  Osco------------| 0-9 |Silt loam* |CL*, ML |A-6*, A-4 | 0 | 0 | 100 | 100 |95-100|95 | 9-34 |Silty clay loam*,|CL* |A-7-6*, A-6| 0 | 0 | 100 | 100 |95-100|95 | | silt loam | | | | | | | |  | 34-60 |Silt loam*, silty|CL*, ML |A-6*, A-4 | 0 | 0 | 100 | 100 |95-100|95 | | clay loam | | | | | | | |  | | | | | | | | | | 
Table 18.--Engineering Index Properties--Continued __________________________________________________________________________________________________________

 | | | Classification | Fragments | Percentage passing  Map symbol | Depth | USDA texture |_________________________|_____________| sieve number--  and soil name | | | | | >10 | 3-10 |______________________ | | | Unified | AASHTO |inches|inches| 4 | 10 | 40 | __________________________________________________________________________________________________________ | In | | | | Pct | Pct | | | |  | | | | | | | | | | 87A: | | | | | | | | | |  Dickinson-------| 0-8 |Sandy loam* |SC-SM*, SC, |A-4*, A-2-4| 0 | 0 | 100 | 100 |63-76 |2 | | | SM | | | | | | |  | 8-20 |Sandy loam*, fine|SC*, SC-SM, |A-4*, A-2-4| 0 | 0 | 100 | 100 |63-87 |2 | | sandy loam | SM | | | | | | |  | 20-31 |Sandy loam*, fine|SC-SM*, SC, |A-4* | 0 | 0 | 100 | 100 |63-87 |2 | | sandy loam | SM | | | | | | |  | 31-36 |Loamy sand*, |SM*, SC-SM, |A-2-4*, A-3| 0 | 0 | 100 | 100 |55-80 |  | | loamy fine sand,| SP-SM | | | | | | |  | | fine sand | | | | | | | |  | 36-60 |Sand*, loamy fine|SP-SM*, SM |A-2-4*, A-3| 0 | 0 | 100 | 100 |50-80 |  | | sand, loamy | | | | | | | |  | | sand | | | | | | | |  | | | | | | | | | | 87C2: | | | | | | | | | |  Dickinson-------| 0-11 |Sandy loam* |SC-SM*, SC, |A-4*, A-2 | 0 | 0 | 100 | 100 |63-76 |2 | | | SM | | | | | | |  | 11-29 |Sandy loam*, fine|SC-SM*, SC, |A-4* | 0 | 0 | 100 | 100 |63-87 |2 | | sandy loam | SM | | | | | | |  | 29-35 |Loamy sand*, |SM*, SC-SM, |A-2-4*, A-3| 0 | 0 | 100 | 100 |55-80 |  | | loamy fine sand,| SP-SM | | | | | | |  | | fine sand | | | | | | | |  | 35-60 |Sand*, loamy fine|SP-SM*, SM |A-2-4*, A-3| 0 | 0 | 100 | 100 |50-80 |  | | sand, loamy | | | | | | | |  | | sand | | | | | | | |  | | | | | | | | | | 88A: | | | | | | | | | |  Sparta----------| 0-17 |Loamy sand* |SM* |A-2-4*, A-4| 0 | 0 |85-100|85-100|50-95 |1 | 17-31 |Loamy sand*, fine|SM*, SP-SM |A-2-4*, | 0 | 0 |85-100|85-100|50-95 |  | | sand, sand | | A-3, A-4 | | | | | |  | 31-72 |Stratified sand |SP-SM*, SM, |A-2-4*, A-3| 0 | 0 |85-100|85-100|50-95 |  | | to loamy sand* | SP | | | | | | |  | | | | | | | | | | 172A: | | | | | | | | | |  Hoopeston-------| 0-14 |Sandy loam* |SC-SM*, SC, |A-4*, A-2-4| 0 | 0 |90-100|90-100|70-90 |2 | | | SM | | | | | | |  | 14-38 |Sandy loam* |SC*, SC-SM, |A-4*, A-2-4| 0 | 0 |90-100|90-100|60-85 |2 | | | SM | | | | | | |  | 38-60 |Sand* |SM*, SC, |A-2-4*, A-3| 0 | 0 |90-100|90-100|50-80 |  | | | SC-SM, SP-SM| | | | | | |  | | | | | | | | | | 
Table 18.--Engineering Index Properties--Continued ___________________________________________________________________________________________________________

 | | | Classification | Fragments | Percentage passing  Map symbol | Depth | USDA texture |_________________________|_____________| sieve number--  and soil name | | | | | >10 | 3-10 |_______________________ | | | Unified | AASHTO |inches|inches| 4 | 10 | 40 | 2___________________________________________________________________________________________________________ | In | | | | Pct | Pct | | | |  | | | | | | | | | | 212B: | | | | | | | | | |  Thebes----------| 0-9 |Silt loam* |CL*, CL-ML |A-4*, A-6 | 0 | 0 | 100 | 100 | 100 |95 | 9-31 |Silty clay loam*,|CL* |A-6*, A-7-6| 0 | 0 | 100 | 100 | 100 |95 | | silt loam | | | | | | | |  | 31-40 |Loam*, sandy |CL*, CL-ML |A-4* | 0 | 0 | 100 |95-100|80-90 |45 | | loam, clay loam | | | | | | | |  | 40-80 |Stratified loamy |SM*, SC-SM, |A-2-4*, A-3| 0 | 0 | 100 |95-100|80-90 | 2 | | sand to sandy | SP-SM | | | | | | |  | | loam*, loamy | | | | | | | |  | | sand, sand | | | | | | | |  | | | | | | | | | | 250D: | | | | | | | | | |  Velma-----------| 0-16 |Silt loam*, loam |CL* |A-6*, A-4 | 0 | 0 | 100 | 100 |90-100|70 | 16-54 |Clay loam*, loam,|CL* |A-6*, A-7-6| 0-1 | 0-5 | 100 |85-100|80-95 |55 | | silty clay loam | | | | | | | |  | 54-80 |Loam*, clay loam,|CL*, ML, SC, |A-6*, A-4, | 0-1 | 0-5 |90-100|75-100|60-90 |30 | | sandy loam | SM | A-2 | | | | | |  | | | | | | | | | | 261A: | | | | | | | | | |  Niota-----------| 0-9 |Silt loam* |ML*, CL |A-4*, A-6 | 0 | 0 | 100 | 100 |95-100|90 | 9-16 |Silt loam* |CL*, CL-ML |A-4*, A-6 | 0 | 0 | 100 | 100 |95-100|90 | 16-27 |Silty clay*, |CH* |A-7-5* | 0 | 0 | 100 | 100 |95-100|95 | | clay, silty clay| | | | | | | |  | | loam | | | | | | | |  | 27-36 |Silty clay loam*,|CL*, CH |A-7-6*, A-6| 0 | 0 | 100 | 100 |95-100|95 | | silt loam, loam | | | | | | | |  | 36-49 |Silt loam*, loam,|CL*, ML, SC, |A-4*, A-2, | 0 | 0 | 100 |95-100|60-90 |20 | | loamy fine sand | SM | A-6, A-7 | | | | | |  | 49-60 |Stratified |SC*, SM, CL, |A-2-4*, A-4| 0 | 0-5 |90-100|70-95 |40-80 |15 | | loamy sand to | ML, SC-SM, | | | | | | |  | | silt loam* | CL-ML | | | | | | |  | | | | | | | | | | 274B: | | | | | | | | | |  Seaton----------| 0-9 |Silt loam* |CL*, CL-ML, |A-4*, A-6, | 0 | 0 | 100 | 100 |95-100|95 | | | ML | A-7 | | | | | |  | 9-60 |Silt loam* |CL*, CL-ML |A-6*, A-4 | 0 | 0 | 100 | 100 |95-100|90 | 60-80 |Silt loam*, silt |CL*, CL-ML |A-6*, A-4 | 0 | 0 | 100 | 100 |95-100|90 | | | | | | | | | | 274B2: | | | | | | | | | |  Seaton----------| 0-9 |Silt loam* |CL*, CL-ML, |A-6*, A-4, | 0 | 0 | 100 | 100 | 100 |95 | | | ML | A-7 | | | | | |  | 9-53 |Silt loam* |CL*, CL-ML |A-6*, A-4 | 0 | 0 | 100 | 100 | 100 |90 | 53-60 |Silt loam*, silt |CL*, CL-ML |A-6*, A-4 | 0 | 0 | 100 | 100 | 100 |90 | | | | | | | | | | 
Table 18.--Engineering Index Properties--Continued ___________________________________________________________________________________________________________

 | | | Classification | Fragments | Percentage passing  Map symbol | Depth | USDA texture |_________________________|_____________| sieve number--  and soil name | | | | | >10 | 3-10 |_______________________ | | | Unified | AASHTO |inches|inches| 4 | 10 | 40 | 2___________________________________________________________________________________________________________ | In | | | | Pct | Pct | | | |  | | | | | | | | | | 274C2: | | | | | | | | | |  Seaton----------| 0-7 |Silt loam* |CL*, CL-ML |A-4*, A-6 | 0 | 0 | 100 | 100 |95-100|95 | 7-47 |Silt loam* |CL*, CL-ML |A-6*, A-4 | 0 | 0 | 100 | 100 |95-100|90 | 47-60 |Silt loam*, silt |CL*, CL-ML |A-6*, A-4 | 0 | 0 | 100 | 100 |95-100|90 | | | | | | | | | | 274D2: | | | | | | | | | |  Seaton----------| 0-8 |Silt loam* |CL*, CL-ML |A-4*, A-6 | 0 | 0 | 100 | 100 | 100 |95 | 8-52 |Silt loam* |CL*, CL-ML |A-6*, A-4 | 0 | 0 | 100 | 100 | 100 |90 | 52-60 |Silt loam*, silt |CL*, CL-ML |A-6*, A-4 | 0 | 0 | 100 | 100 | 100 |90 | | | | | | | | | | 275A: | | | | | | | | | |  Joy-------------| 0-15 |Silt loam* |CL*, CL-ML |A-6*, A-4 | 0 | 0 | 100 | 100 |95-100|95 | 15-51 |Silt loam* |CL* |A-6* | 0 | 0 | 100 | 100 |95-100|95 | 51-60 |Silt loam*, loam,|CL*, CL-ML, |A-4*, A-6 | 0 | 0 | 100 | 100 |90-100|40 | | very fine sandy | SC, SC-SM | | | | | | |  | | loam | | | | | | | |  | | | | | | | | | | 278A: | | | | | | | | | |  Stronghurst-----| 0-8 |Silt loam* |CL*, CL-ML |A-4*, A-6 | 0 | 0 | 100 | 100 |95-100|95 | 8-47 |Silty clay loam*,|CL* |A-7-6*, A-6| 0 | 0 | 100 | 100 |95-100|95 | | silt loam | | | | | | | |  | 47-60 |Silt loam* |CL*, CL-ML |A-6*, A-4 | 0 | 0 | 100 | 100 |95-100|95 | | | | | | | | | | 279A: | | | | | | | | | |  Rozetta---------| 0-4 |Silt loam* |CL* |A-6*, A-4 | 0 | 0 | 100 | 100 |95-100|95 | 4-11 |Silt loam* |CL*, CL-ML |A-4*, A-6 | 0 | 0 | 100 | 100 |95-100|95 | 11-50 |Silty clay loam*,|CL* |A-7-6*, A-6| 0 | 0 | 100 | 100 |95-100|95 | 50-60 |Silt loam*, silty|CL* |A-6*, A-4 | 0 | 0 | 100 | 100 |95-100|85 | | clay loam | | | | | | | |  | | | | | | | | | | 279B: | | | | | | | | | |  Rozetta---------| 0-7 |Silt loam* |CL* |A-6*, A-4 | 0 | 0 | 100 | 100 |95-100|95 | 7-11 |Silt loam* |CL*, CL-ML |A-4*, A-6 | 0 | 0 | 100 | 100 |95-100|95 | 11-55 |Silty clay loam* |CL* |A-7*, A-6 | 0 | 0 | 100 | 100 |95-100|95 | 55-60 |Silt loam*, silty|CL* |A-6*, A-4 | 0 | 0 | 100 | 100 |95-100|85 | | clay loam | | | | | | | |  | | | | | | | | | | 280B: | | | | | | | | | |  Fayette---------| 0-9 |Silt loam* |CL*, CL-ML |A-6*, A-4 | 0 | 0 | 100 | 100 | 100 |95 | 9-39 |Silty clay loam*,|CL* |A-7*, A-6 | 0 | 0 | 100 | 100 | 100 |95 | | silt loam | | | | | | | |  | 39-60 |Silt loam* |CL* |A-6* | 0 | 0 | 100 | 100 | 100 |95 | | | | | | | | | | 
Table 18.--Engineering Index Properties--Continued ___________________________________________________________________________________________________________

 | | | Classification | Fragments | Percentage passing  Map symbol | Depth | USDA texture |_________________________|_____________| sieve number--  and soil name | | | | | >10 | 3-10 |_______________________ | | | Unified | AASHTO |inches|inches| 4 | 10 | 40 | 2___________________________________________________________________________________________________________ | In | | | | Pct | Pct | | | |  | | | | | | | | | | 280B2: | | | | | | | | | |  Fayette---------| 0-8 |Silt loam* |CL*, CL-ML |A-6*, A-7 | 0 | 0 | 100 | 100 | 100 |95 | 8-56 |Silty clay loam*,|CL* |A-6*, A-7 | 0 | 0 | 100 | 100 | 100 |95 | | silt loam | | | | | | | |  | 56-80 |Silt loam* |CL* |A-6* | 0 | 0 | 100 | 100 | 100 |95 | | | | | | | | | | 280C2: | | | | | | | | | |  Fayette---------| 0-8 |Silt loam* |CL* |A-6*, A-7 | 0 | 0 | 100 | 100 | 100 |95 | 8-64 |Silty clay loam*,|CL* |A-7*, A-6 | 0 | 0 | 100 | 100 | 100 |95 | | silt loam | | | | | | | |  | 64-80 |Silt loam* |CL* |A-6* | 0 | 0 | 100 | 100 | 100 |95 | | | | | | | | | | 280C3: | | | | | | | | | |  Fayette---------| 0-8 |Silty clay loam* |CL* |A-6*, A-7 | 0 | 0 | 100 | 100 | 100 |95 | 8-48 |Silty clay loam*,|CL* |A-6*, A-7 | 0 | 0 | 100 | 100 | 100 |95 | | silt loam | | | | | | | |  | 48-60 |Silt loam* |CL* |A-6* | 0 | 0 | 100 | 100 | 100 |95 | | | | | | | | | | 317A: | | | | | | | | | |  Millsdale-------| 0-8 |Silty clay loam* |CL* |A-7-6*, A-6| 0 | 0 |90-100|80-100|75-100|70 | 8-27 |Silty clay*, |CH*, CL |A-7-6* | 0 | 0-5 |85-100|80-100|75-100|60 | | clay, silty clay| | | | | | | |  | | loam, clay loam | | | | | | | |  | 27-60 |Unweathered | --- | --- | --- | --- | --- | --- | --- | - | | bedrock* | | | | | | | |  | | | | | | | | | | 430A: | | | | | | | | | |  Raddle----------| 0-21 |Silt loam* |CL*, CL-ML |A-4*, A-6 | 0 | 0 | 100 | 100 |95-100|90 | 21-80 |Silt loam* |CL*, CL-ML |A-4*, A-6 | 0 | 0 | 100 | 100 |90-100|80 | | | | | | | | | | 430B: | | | | | | | | | |  Raddle----------| 0-13 |Silt loam* |CL*, CL-ML |A-4*, A-6 | 0 | 0 | 100 | 100 |95-100|85 | 13-60 |Silt loam* |CL*, CL-ML |A-4*, A-6 | 0 | 0 | 100 | 100 |90-100|80 | | | | | | | | | | 525A: | | | | | | | | | |  Joslin----------| 0-20 |Loam*, silt loam |CL*, CL-ML |A-4*, A-2 | 0 | 0 | 100 | 100 |90-100|75 | 20-34 |Loam*, clay loam,|CL* |A-6*, A-7 | 0 | 0 |90-100|85-100|70-100|30 | | sandy clay loam | | | | | | | |  | 34-51 |Clay loam*, sandy|CL* |A-6* | 0 | 0 |90-100|85-100|70-100|30 | | clay loam | | | | | | | |  | 51-58 |Clay loam*, clay |CL* |A-6* | 0 | 0-5 |85-100|80-100|65-100|25 | 58-80 |Unweathered | --- | --- | --- | --- | --- | --- | --- | - | | bedrock* | | | | | | | |  | | | | | | | | | | 
Table 18.--Engineering Index Properties--Continued ___________________________________________________________________________________________________________

 | | | Classification | Fragments | Percentage passing  Map symbol | Depth | USDA texture |_________________________|_____________| sieve number--  and soil name | | | | | >10 | 3-10 |_______________________ | | | Unified | AASHTO |inches|inches| 4 | 10 | 40 | 2___________________________________________________________________________________________________________ | In | | | | Pct | Pct | | | |  | | | | | | | | | | 567C2: | | | | | | | | | |  Elkhart---------| 0-8 |Silt loam* |CL* |A-6*, A-7 | 0 | 0 | 100 | 100 | 100 |95 | 8-25 |Silty clay loam*,|CL* |A-7-6*, A-6| 0 | 0 | 100 | 100 | 100 |95 | | silt loam | | | | | | | |  | 25-60 |Silt loam*, silt |CL* |A-6*, A-4 | 0 | 0 | 100 | 100 |95-100|95 | | | | | | | | | | 567D2: | | | | | | | | | |  Elkhart---------| 0-10 |Silt loam* |CL* |A-6*, A-4 | 0 | 0 | 100 | 100 |95-100|95 | 10-30 |Silty clay loam*,|CL* |A-7-6*, A-6| 0 | 0 | 100 | 100 |95-100|95 | | silt loam | | | | | | | |  | 30-60 |Silt loam*, silt |CL* |A-6*, A-4 | 0 | 0 | 100 | 100 |95-100|90 | | | | | | | | | | 570B: | | | | | | | | | |  Martinsville----| 0-9 |Silt loam*, loam |CL*, CL-ML, |A-6*, A-4 | 0 | 0 | 100 |85-100|70-100|50 | | | ML | | | | | | |  | 9-18 |Silty clay loam*,|CL*, CL-ML, |A-6*, A-4, | 0 | 0 |95-100|85-100|70-100|30 | | clay loam, sandy| SC, SC-SM | A-7, A-2 | | | | | |  | | clay loam | | | | | | | |  | 18-33 |Clay loam*, loam,|CL*, CL-ML, |A-6*, A-4, | 0 | 0 |95-100|85-100|70-100|30 | | sandy clay loam | SC, SC-SM | A-7, A-2 | | | | | |  | 33-42 |Sandy loam*, |SC*, CL-ML, |A-4*, A-6, | 0 | 0 |95-100|85-100|50-95 |25 | | loam, sandy clay| SC-SM, SM | A-2-4, | | | | | |  | | loam | | A-2-6 | | | | | |  | 42-72 |Stratified sandy |SC-SM*, SC, |A-4*, | 0 | 0 |95-100|85-100|40-95 |20 | | loam to loam to | CL, ML | A-2-4, | | | | | |  | | silt loam* | | A-1-b | | | | | |  | | | | | | | | | | 570C3: | | | | | | | | | |  Martinsville----| 0-9 |Clay loam* |CL* |A-6*, A-7 | 0 | 0 |95-100|90-100|80-100|65 | 9-30 |Clay loam*, silty|CL* |A-6*, A-7 | 0 | 0 |90-100|70-100|65-95 |50 | | clay loam | | | | | | | |  | 30-60 |Sandy loam*, |CL*, CL-ML, |A-4*, A-6, | 0 | 0 |85-100|85-100|55-95 |30 | | loam, sandy clay| SC, SC-SM | A-2 | | | | | |  | | loam | | | | | | | |  | | | | | | | | | | 570D3: | | | | | | | | | |  Martinsville----| 0-9 |Clay loam* |CL* |A-6*, A-7 | 0 | 0 |95-100|90-100|80-100|65 | 9-30 |Clay loam*, silty|CL* |A-6*, A-7 | 0 | 0 |90-100|70-100|65-95 |50 | | clay loam | | | | | | | |  | 30-60 |Sandy loam*, |CL*, CL-ML, |A-4*, A-6, | 0 | 0 |85-100|85-100|55-95 |30 | | loam, sandy clay| SC, SC-SM | A-2 | | | | | |  | | loam | | | | | | | |  | | | | | | | | | | 
Table 18.--Engineering Index Properties--Continued ___________________________________________________________________________________________________________

 | | | Classification | Fragments | Percentage passing  Map symbol | Depth | USDA texture |_________________________|_____________| sieve number--  and soil name | | | | | >10 | 3-10 |_______________________ | | | Unified | AASHTO |inches|inches| 4 | 10 | 40 | 2___________________________________________________________________________________________________________ | In | | | | Pct | Pct | | | |  | | | | | | | | | | 647A: | | | | | | | | | |  Lawler----------| 0-10 |Loam*, silt loam |CL*, ML |A-6*, A-7 | 0 | 0 | 100 |90-100|70-90 |55 | 10-31 |Loam*, sandy clay|CL*, SC |A-6* | 0 | 0 |85-95 |80-95 |70-85 |45 | | loam, clay loam,| | | | | | | |  | | silt loam | | | | | | | |  | 31-60 |Sand*, gravelly |SP*, GP, |A-1-b* | 0 | 0-10 |50-90 |50-85 |20-40 | 3 | | coarse sand, | SP-SM | | | | | | |  | | gravelly loamy | | | | | | | |  | | sand, loamy | | | | | | | |  | | coarse sand | | | | | | | |  | | | | | | | | | | 671A: | | | | | | | | | |  Biggsville------| 0-13 |Silt loam* |CL*, ML |A-6*, A-4 | 0 | 0 | 100 | 100 | 100 |95 | 13-53 |Silt loam* |CL* |A-6*, A-4 | 0 | 0 | 100 | 100 | 100 |95 | 53-80 |Silt loam* |CL* |A-6*, A-4 | 0 | 0 | 100 | 100 | 100 |90 | | | | | | | | | | 671B: | | | | | | | | | |  Biggsville------| 0-13 |Silt loam* |CL*, ML |A-6*, A-4 | 0 | 0 | 100 | 100 | 100 |95 | 13-53 |Silt loam* |CL* |A-6*, A-4 | 0 | 0 | 100 | 100 | 100 |95 | 53-80 |Silt loam* |CL* |A-6*, A-4 | 0 | 0 | 100 | 100 | 100 |90 | | | | | | | | | | 675A: | | | | | | | | | |  Greenbush-------| 0-9 |Silt loam* |CL*, CL-ML |A-4*, A-6 | 0 | 0 | 100 | 100 | 100 |95 | 9-16 |Silt loam* |CL*, CL-ML |A-4*, A-6 | 0 | 0 | 100 | 100 | 100 |95 | 16-46 |Silty clay loam*,|CL* |A-6*, A-7 | 0 | 0 | 100 | 100 | 100 |95 | | silt loam | | | | | | | |  | 46-60 |Silt loam* |CL* |A-6* | 0 | 0 | 100 | 100 | 100 |95 | | | | | | | | | | 675B: | | | | | | | | | |  Greenbush-------| 0-14 |Silt loam* |CL*, CL-ML |A-4*, A-6 | 0 | 0 | 100 | 100 | 100 |95 | 14-60 |Silty clay loam*,|CL* |A-6*, A-7 | 0 | 0 | 100 | 100 | 100 |95 | | silt loam | | | | | | | |  | 60-80 |Silt loam* |CL* |A-6* | 0 | 0 | 100 | 100 | 100 |95 | | | | | | | | | | 689B: | | | | | | | | | |  Coloma----------| 0-10 |Sand* |SP-SM*, SP, |A-3*, A-2 | 0 | 0 |85-100|85-100|50-80 | 2 | | | SM | | | | | | |  | 10-27 |Sand*, loamy sand|SP-SM*, SP, |A-3*, A-2 | 0 | 0 |85-100|85-100|50-75 | 2 | | | SM | | | | | | |  | 27-60 |Stratified sand |SM*, SP, |A-2-4*, | 0 | 0 |85-100|85-100|50-100| 2 | | to loamy sand* | SP-SM | A-3, A-4 | | | | | |  | | | | | | | | | | 
Table 18.--Engineering Index Properties--Continued __________________________________________________________________________________________________________

 | | | Classification | Fragments | Percentage passing  Map symbol | Depth | USDA texture |_________________________|_____________| sieve number--  and soil name | | | | | >10 | 3-10 |______________________ | | | Unified | AASHTO |inches|inches| 4 | 10 | 40 | __________________________________________________________________________________________________________ | In | | | | Pct | Pct | | | |  | | | | | | | | | | 689D: | | | | | | | | | |  Coloma----------| 0-12 |Sand* |SP-SM*, SP, |A-3*, A-2 | 0 | 0 |85-100|85-100|50-75 |  | | | SM | | | | | | |  | 12-25 |Sand*, loamy sand|SP-SM*, SP, |A-3*, A-2 | 0 | 0 |85-100|85-100|50-75 |  | | | SM | | | | | | |  | 25-60 |Stratified sand |SM*, SP, |A-2-4*, | 0 | 0 |85-100|85-100|50-100|  | | to loamy sand to| SP-SM | A-3, A-4 | | | | | |  | | sandy loam* | | | | | | | |  | | | | | | | | | | 705A: | | | | | | | | | |  Buckhart--------| 0-20 |Silt loam*, silty|CL*, ML |A-6*, A-7 | 0 | 0 | 100 | 100 | 100 |9 | | clay loam | | | | | | | |  | 20-58 |Silty clay loam*,|CL* |A-7-6*, A-7| 0 | 0 | 100 | 100 | 100 |9 | | silt loam | | | | | | | |  | 58-60 |Silt loam*, silty|CL* |A-6* | 0 | 0 | 100 | 100 | 100 |9 | | clay loam | | | | | | | |  | | | | | | | | | | 727A: | | | | | | | | | |  Waukee----------| 0-14 |Loam*, silt loam |CL* |A-6* | 0 | 0 | 100 |90-100|70-90 |5 | 14-34 |Loam*, sandy clay|SC*, SC-SM, |A-4*, A-6 | 0 | 0-5 |85-95 |80-95 |65-85 |4 | | loam | CL, CL-ML | | | | | | |  | 34-60 |Coarse sand*, |SM*, SP, |A-1-b* | 0 | 0-10 |60-90 |60-85 |20-40 |  | | loamy sand, | SP-SM | | | | | | |  | | gravelly coarse | | | | | | | |  | | sand, loamy | | | | | | | |  | | coarse sand | | | | | | | |  | | | | | | | | | | 741F: | | | | | | | | | |  Oakville--------| 0-3 |Fine sand* |SP-SM*, SM |A-2-4* | 0 | 0 | 100 |95-100|70-80 |  | 3-24 |Fine sand*, loamy|SP-SM*, SM |A-2-4* | 0 | 0 | 100 |95-100|74-85 |  | | fine sand | | | | | | | |  | 24-60 |Fine sand*, sand |SP-SM*, SM |A-3*, A-2-4| 0 | 0 | 100 |95-100|73-83 |  | | | | | | | | | | 763A: | | | | | | | | | |  Joslin----------| 0-15 |Silt loam*, loam |CL*, CL-ML |A-4*, A-6 | 0 | 0 | 100 | 100 |90-100|7 | 15-40 |Silt loam*, loam |CL* |A-6*, A-7-6| 0 | 0 | 100 | 100 |90-100|7 | 40-60 |Silty clay*, |CH*, CL |A-7-6* | 0 | 0 | 100 | 100 |95-100|9 | | silty clay loam,| | | | | | | |  | | clay | | | | | | | |  | 60-85 |Silt loam*, silty|CL* |A-6*, A-7-6| 0 | 0 | 100 | 100 |90-100|7 | | clay loam, loam,| | | | | | | |  | | clay loam | | | | | | | |  | | | | | | | | | | 
Table 18.--Engineering Index Properties--Continued __________________________________________________________________________________________________________

 | | | Classification | Fragments | Percentage passing  Map symbol | Depth | USDA texture |_________________________|_____________| sieve number--  and soil name | | | | | >10 | 3-10 |______________________ | | | Unified | AASHTO |inches|inches| 4 | 10 | 40 | __________________________________________________________________________________________________________ | In | | | | Pct | Pct | | | |  | | | | | | | | | | 763B: | | | | | | | | | |  Joslin----------| 0-14 |Silt loam*, loam |CL*, CL-ML |A-4*, A-6 | 0 | 0 | 100 | 100 |90-100|7 | 14-48 |Silt loam*, loam |CL* |A-6*, A-7-6| 0 | 0 | 100 | 100 |90-100|7 | 48-60 |Silty clay*, |CH*, CL |A-7-6* | 0 | 0 | 100 | 100 |95-100|9 | | silty clay loam,| | | | | | | |  | | clay | | | | | | | |  | 60-85 |Silt loam*, clay |CL* |A-6*, A-7-6| 0 | 0 | 100 | 100 |90-100|7 | | loam, silty clay| | | | | | | |  | | loam, loam | | | | | | | |  | | | | | | | | | | 764A: | | | | | | | | | |  Coyne-----------| 0-23 |Fine sandy loam* |SC*, SC-SM, |A-2-4*, | 0 | 0 | 100 |95-100|60-70 |2 | | | SM | A-4, A-6 | | | | | |  | 23-42 |Fine sandy loam*,|SC*, SC-SM, |A-2-4*, | 0 | 0 | 100 |95-100|60-70 |2 | | loam | SM | A-4, A-6 | | | | | |  | 42-60 |Silty clay loam*,|CL* |A-6*, A-7 | 0 | 0 | 100 | 100 |85-100|8 | | loam, silt loam | | | | | | | |  | | | | | | | | | | 764C: | | | | | | | | | |  Coyne-----------| 0-23 |Fine sandy loam* |SC*, SC-SM, |A-2-4*, | 0 | 0 | 100 |95-100|60-70 |2 | | | SM | A-4, A-6 | | | | | |  | 23-42 |Fine sandy loam*,|SC*, SC-SM, |A-2-4*, | 0 | 0 | 100 |95-100|60-70 |2 | | loam | SM | A-4, A-6 | | | | | |  | 42-55 |Silty clay loam*,|CL* |A-6*, A-7 | 0 | 0 | 100 | 100 |85-100|8 | | loam, silt loam | | | | | | | |  | 55-60 |Gravelly sand*, |SP-SM*, SP, |A-1-b* | 0 | 0 |70-90 |60-80 |20-45 |  | | sand | SM | | | | | | |  | | | | | | | | | | 774A: | | | | | | | | | |  Saude-----------| 0-14 |Loam* |CL* |A-6* | 0 | 0 | 100 |90-100|70-90 |5 | 14-29 |Loam*, sandy |CL*, CL-ML, |A-4*, A-6 | 0 | 0-5 |85-95 |65-95 |60-85 |4 | | loam, gravelly | SC, SC-SM | | | | | | |  | | sandy loam | | | | | | | |  | 29-60 |Gravelly coarse |SM*, GM, GP |A-2-4* | 0 | 0-10 |50-90 |50-85 |20-40 |  | | sand*, coarse | | | | | | | |  | | sand, loamy | | | | | | | |  | | sand, sand | | | | | | | |  | | | | | | | | | | 800C: | | | | | | | | | |  Psamments-------| 0-60 |Sand*, loamy sand|SP-SM*, SP, |A-3*, A-2 | 0 | 0 |85-100|85-100|50-75 |  | | | SM | | | | | | |  | 60-80 |Sand*, fine sand |SP-SM*, SP, |A-3*, A-2 | 0 | 0 |85-100|85-100|50-75 |  | | | SM | | | | | | |  | | | | | | | | | | 
Table 18.--Engineering Index Properties--Continued __________________________________________________________________________________________________________

 | | | Classification | Fragments | Percentage passing  Map symbol | Depth | USDA texture |_________________________|_____________| sieve number--  and soil name | | | | | >10 | 3-10 |______________________ | | | Unified | AASHTO |inches|inches| 4 | 10 | 40 | __________________________________________________________________________________________________________ | In | | | | Pct | Pct | | | |  | | | | | | | | | | 802B: | | | | | | | | | |  Orthents--------| 0-6 |Loam* |CL* |A-6* | 0-1 | 0-5 |95-100|90-100|85-95 |6 | 6-60 |Loam*, silt loam,|CL* |A-6* | 0-1 | 0-5 |95-100|90-100|85-95 |6 | | clay loam | | | | | | | |  | | | | | | | | | | 864. | | | | | | | | | |  Pits, quarries | | | | | | | | | |  | | | | | | | | | | 865. | | | | | | | | | |  Pits, gravel | | | | | | | | | |  | | | | | | | | | | 898F3: | | | | | | | | | |  Hickory---------| 0-12 |Clay loam* |CL* |A-6*, A-7 | 0 | 0-5 |95-100|90-100|80-100|6 | 12-48 |Clay loam*, silty|CL* |A-6*, A-7 | 0-1 | 0-5 |85-100|70-100|65-95 |5 | | clay loam, | | | | | | | |  | | gravelly clay | | | | | | | |  | | loam | | | | | | | |  | 48-60 |Loam*, clay loam,|CL-ML*, CL, |A-6*, A-4, | 0-1 | 0-5 |85-100|70-95 |45-95 |2 | | gravelly clay | SC, SC-SM | A-2 | | | | | |  | | loam | | | | | | | |  | | | | | | | | | |  Sylvan----------| 0-6 |Silty clay loam* |CL* |A-7-6*, A-6| 0 | 0 | 100 | 100 |95-100|9 | 6-30 |Silty clay loam*,|CL* |A-7-6*, A-6| 0 | 0 | 100 | 100 |95-100|9 | | silt loam | | | | | | | |  | 30-60 |Silt loam*, silt |CL*, CL-ML |A-6*, A-4 | 0 | 0 | 100 | 100 |95-100|9 | | | | | | | | | | 898G: | | | | | | | | | |  Hickory---------| 0-10 |Silt loam* |CL*, CL-ML, |A-4*, A-6 | 0 | 0-5 |95-100|90-100|75-100|5 | | | ML | | | | | | |  | 10-35 |Clay loam*, silty|CL* |A-6*, A-7 | 0-1 | 0-5 |85-100|70-100|65-95 |5 | | clay loam, | | | | | | | |  | | gravelly clay | | | | | | | |  | | loam | | | | | | | |  | 35-60 |Loam*, clay loam,|CL-ML*, CL, |A-6*, A-4, | 0-1 | 0-5 |85-100|70-95 |45-95 |2 | | gravelly clay | SC, SC-SM | A-2 | | | | | |  | | loam | | | | | | | |  | | | | | | | | | |  Sylvan----------| 0-3 |Silt loam* |CL*, CL-ML |A-4*, A-6 | 0 | 0 | 100 | 100 |95-100|9 | 3-7 |Silt loam* |CL*, ML |A-6*, A-4 | 0 | 0 | 100 | 100 |95-100|9 | 7-33 |Silty clay loam*,|CL* |A-7-6*, A-6| 0 | 0 | 100 | 100 |95-100|9 | | silt loam | | | | | | | |  | 33-60 |Silt loam*, silt |CL*, CL-ML |A-6*, A-4 | 0 | 0 | 100 | 100 |95-100|9 | | | | | | | | | | 
Table 18.--Engineering Index Properties--Continued ___________________________________________________________________________________________________________

 | | | Classification | Fragments | Percentage passing  Map symbol | Depth | USDA texture |_________________________|_____________| sieve number--  and soil name | | | | | >10 | 3-10 |_______________________ | | | Unified | AASHTO |inches|inches| 4 | 10 | 40 | 2___________________________________________________________________________________________________________ | In | | | | Pct | Pct | | | |  | | | | | | | | | | 913D2: | | | | | | | | | |  Marseilles------| 0-4 |Silt loam* |CL*, CL-ML |A-4*, A-6 | 0 | 0 | 100 | 100 |95-100|85 | 4-38 |Silty clay loam*,|CL*, CH |A-7-6* | 0-1 | 0-5 |95-100|90-100|85-100|80 | | clay loam, silty| | | | | | | |  | | clay | | | | | | | |  | 38-60 |Weathered | --- | --- | --- | --- | --- | --- | --- | - | | bedrock* | | | | | | | |  | | | | | | | | | |  Hickory---------| 0-6 |Silt loam* |CL*, CL-ML |A-6*, A-4 | 0 | 0-5 |95-100|90-100|90-100|75 | 6-51 |Clay loam*, silty|CL* |A-6*, A-7 | 0-1 | 0-5 |95-100|70-100|65-95 |50 | | clay loam, | | | | | | | |  | | gravelly clay | | | | | | | |  | | loam | | | | | | | |  | 51-60 |Loam*, clay loam,|CL-ML*, CL, |A-6*, A-4, | 0-1 | 0-5 |85-100|70-95 |45-95 |25 | | gravelly clay | SC, SC-SM | A-2 | | | | | |  | | loam | | | | | | | |  | | | | | | | | | | 913F: | | | | | | | | | |  Marseilles------| 0-12 |Silt loam* |CL*, CL-ML |A-4*, A-6 | 0 | 0 | 100 | 100 |95-100|90 | 12-18 |Silt loam*, silty|CL* |A-7-6*, A-6| 0 | 0 | 100 | 100 |90-100|85 | | clay loam | | | | | | | |  | 18-34 |Silty clay loam*,|CL* , CH |A-7-6* | 0-5 | 0-5 |95-100|90-100|85-100|80 | | clay loam, silty| | | | | | | |  | | clay | | | | | | | |  | 34-60 |Weathered | --- | --- | --- | --- | --- | --- | --- | - | | bedrock* | | | | | | | |  | | | | | | | | | |  Hickory---------| 0-8 |Silt loam* |CL*, CL-ML, |A-4*, A-6 | 0 | 0-5 |95-100|90-100|75-100|55 | | | ML | | | | | | |  | 8-57 |Clay loam*, silty|CL* |A-6*, A-7 | 0-1 | 0-5 |85-100|70-100|65-95 |50 | | clay loam, | | | | | | | |  | | gravelly clay | | | | | | | |  | | loam | | | | | | | |  | 57-60 |Loam*, clay loam,|CL-ML*, CL, |A-6*, A-4, | 0-1 | 0-5 |85-100|70-95 |45-95 |25 | | gravelly clay | SC, SC-SM | A-2 | | | | | |  | | loam | | | | | | | |  | | | | | | | | | | 913G: | | | | | | | | | |  Marseilles------| 0-9 |Silt loam* |CL*, CL-ML |A-4*, A-6 | 0 | 0 | 100 | 100 |95-100|85 | 9-36 |Silty clay loam*,|CL* , CH |A-7-6* | 0-1 | 0-5 |95-100|90-100|85-100|80 | | silty clay, clay| | | | | | | |  | | loam | | | | | | | |  | 36-60 |Weathered | --- | --- | --- | --- | --- | --- | --- | - | | bedrock* | | | | | | | |  | | | | | | | | | | 
Table 18.--Engineering Index Properties--Continued __________________________________________________________________________________________________________

 | | | Classification | Fragments | Percentage passing  Map symbol | Depth | USDA texture |_________________________|_____________| sieve number--  and soil name | | | | | >10 | 3-10 |______________________ | | | Unified | AASHTO |inches|inches| 4 | 10 | 40 | __________________________________________________________________________________________________________ | In | | | | Pct | Pct | | | |  | | | | | | | | | | 913G: | | | | | | | | | |  Hickory---------| 0-12 |Silt loam* |CL*, CL-ML, |A-4*, A-6 | 0 | 0-5 |95-100|90-100|90-100|7 | | | ML | | | | | | |  | 12-53 |Clay loam*, silty|CL* |A-6*, A-7 | 0-1 | 0-5 |95-100|75-100|70-95 |6 | | clay loam, | | | | | | | |  | | gravelly clay | | | | | | | |  | | loam | | | | | | | |  | 53-60 |Loam*, sandy |CL-ML*, CL |A-6*, A-4 | 0-1 | 0-5 |85-100|75-95 |70-95 |6 | | loam, gravelly | | | | | | | |  | | clay loam | | | | | | | |  | | | | | | | | | | 917C2: | | | | | | | | | |  Oakville--------| 0-7 |Fine sand* |SP-SM*, SM |A-2-4* | 0 | 0 | 100 |95-100|70-80 |  | 7-51 |Fine sand*, loamy|SP-SM*, SM |A-2-4* | 0 | 0 | 100 |95-100|74-85 |  | | fine sand | | | | | | | |  | 51-60 |Fine sand*, sand |SP-SM*, SM |A-3*, A-2 | 0 | 0 | 100 |95-100|73-83 |  | | | | | | | | | |  Tell------------| 0-7 |Silt loam* |CL* |A-4* | 0 | 0 | 100 | 100 |90-98 |6 | 7-23 |Silt loam*, silty|CL* |A-6* | 0 | 0 | 100 | 100 |96-99 |8 | | clay loam | | | | | | | |  | 23-27 |Sandy loam*, |SC*, SC-SM, |A-4*, | 0 | 0 | 100 |90-100|75-92 |2 | | loam, sandy clay| CL, CL-ML | A-2-4, A-6| | | | | |  | | loam | | | | | | | |  | 27-60 |Loamy sand*, sand|SP-SM*, SP, |A-2-4*, | 0 | 0 | 100 |90-100|71-86 |1 | | | SM | A-1, A-3 | | | | | |  | | | | | | | | | | 917D2: | | | | | | | | | |  Oakville--------| 0-9 |Fine sand* |SP-SM*, SM |A-2-4* | 0 | 0 | 100 |95-100|70-80 |  | 9-36 |Fine sand*, loamy|SP-SM*, SM |A-2-4* | 0 | 0 | 100 |95-100|74-85 |  | | fine sand | | | | | | | |  | 36-60 |Fine sand*, sand |SP-SM*, SM |A-3*, A-2 | 0 | 0 | 100 |95-100|73-83 |  | | | | | | | | | |  Tell------------| 0-8 |Silt loam* |CL* |A-4* | 0 | 0 | 100 | 100 |90-98 |6 | 8-28 |Silt loam*, silty|CL* |A-6* | 0 | 0 | 100 | 100 |96-99 |8 | | clay loam | | | | | | | |  | 28-32 |Sandy loam*, |SC*, SC-SM, |A-4*, | 0 | 0 | 100 |90-100|75-92 |2 | | loam, sandy clay| CL, CL-ML | A-2-4, A-6| | | | | |  | | loam | | | | | | | |  | 32-60 |Sand*, loamy sand|SP-SM*, SP, |A-2-4*, | 0 | 0 | 100 |90-100|71-86 |1 | | | SM | A-1, A-3 | | | | | |  | | | | | | | | | | 943D2: | | | | | | | | | |  Seaton----------| 0-4 |Silt loam* |CL*, CL-ML |A-4*, A-6 | 0 | 0 | 100 | 100 | 100 |9 | 4-39 |Silt loam* |CL*, CL-ML |A-6*, A-4 | 0 | 0 | 100 | 100 | 100 |9 | 39-60 |Silt loam*, silt |CL*, CL-ML |A-6*, A-4 | 0 | 0 | 100 | 100 | 100 |9 | | | | | | | | | | 
Table 18.--Engineering Index Properties--Continued ___________________________________________________________________________________________________________

 | | | Classification | Fragments | Percentage passing  Map symbol | Depth | USDA texture |_________________________|_____________| sieve number--  and soil name | | | | | >10 | 3-10 |_______________________ | | | Unified | AASHTO |inches|inches| 4 | 10 | 40 | 2___________________________________________________________________________________________________________ | In | | | | Pct | Pct | | | |  | | | | | | | | | | 943D2: | | | | | | | | | |  Timula----------| 0-5 |Silt loam* |ML* |A-4* | 0 | 0 | 100 | 100 |95-100|85 | 5-23 |Silt loam* |ML* |A-4* | 0 | 0 | 100 | 100 |95-100|85 | 23-60 |Silt loam*, silt |ML* |A-4* | 0 | 0 | 100 | 100 |95-100|85 | | | | | | | | | | 943F2: | | | | | | | | | |  Seaton----------| 0-6 |Silt loam* |CL*, CL-ML |A-4*, A-6 | 0 | 0 | 100 | 100 | 100 |95 | 6-49 |Silt loam* |CL*, CL-ML |A-6*, A-4 | 0 | 0 | 100 | 100 | 100 |90 | 49-60 |Silt loam*, silt |CL*, CL-ML |A-6*, A-4 | 0 | 0 | 100 | 100 | 100 |90 | | | | | | | | | |  Timula----------| 0-6 |Silt loam* |ML* |A-4* | 0 | 0 | 100 | 100 |95-100|85 | 6-28 |Silt loam* |ML* |A-4* | 0 | 0 | 100 | 100 |95-100|85 | 28-60 |Silt loam*, silt |ML* |A-4* | 0 | 0 | 100 | 100 |95-100|85 | | | | | | | | | | 944D2: | | | | | | | | | |  Velma-----------| 0-17 |Silt loam* |CL* |A-6*, A-4 | 0 | 0 | 100 | 100 |90-100|70 | 17-56 |Clay loam*, loam,|CL* |A-6*, A-7 | 0-1 | 0-5 | 100 |85-100|80-95 |55 | | silty clay loam | | | | | | | |  | 56-60 |Clay loam*, loam,|CL*, ML, SC, |A-6*, A-4, | 0-1 | 0-5 |90-100|75-100|60-90 |30 | | sandy loam | SM | A-2 | | | | | |  | | | | | | | | | |  Coatsburg-------| 0-12 |Silt loam* |CL*, CL-ML |A-4*, A-6 | 0 | 0 | 100 | 100 |95-100|90 | 12-54 |Silty clay*, |CH* |A-7-6* | 0 | 0 | 100 |95-100|75-90 |65 | | clay, clay loam | | | | | | | |  | 54-72 |Clay loam*, loam |CL*, CH |A-7-6*, A-6| 0 | 0-5 | 100 |95-100|70-100|60 | | | | | | | | | | 946D3: | | | | | | | | | |  Hickory---------| 0-7 |Clay loam* |CL* |A-6*, A-7 | 0 | 0-5 |95-100|90-100|80-100|65 | 7-42 |Clay loam*, silty|CL* |A-6*, A-7 | 0-1 | 0-5 |85-100|70-100|65-95 |50 | | clay loam, | | | | | | | |  | | gravelly clay | | | | | | | |  | | loam | | | | | | | |  | 42-60 |Loam*, clay loam,|CL-ML*, CL |A-6*, A-4, | 0-1 | 0-5 |85-100|75-95 |45-95 |25 | | gravelly clay | | A-2 | | | | | |  | | loam | | | | | | | |  | | | | | | | | | |  Atlas-----------| 0-6 |Silty clay loam* |CH*, CL |A-7-6* | 0 | 0 | 100 | 100 |95-100|75 | 6-12 |Silty clay loam*,|CH* |A-7-6* | 0 | 0 | 100 |95-100|95-100|75 | | silty clay, clay| | | | | | | |  | | loam | | | | | | | |  | 12-55 |Silty clay*, |CH* |A-7-6* | 0 | 0 | 100 |95-100|95-100|75 | | silty clay loam,| | | | | | | |  | | clay loam | | | | | | | |  | 55-60 |Clay loam*, clay,|CL*, CH |A-7-6*, A-6| 0 | 0 |95-100|90-100|80-100|60 | | loam | | | | | | | |  | | | | | | | | | | 
Table 18.--Engineering Index Properties--Continued __________________________________________________________________________________________________________

 | | | Classification | Fragments | Percentage passing  Map symbol | Depth | USDA texture |_________________________|_____________| sieve number--  and soil name | | | | | >10 | 3-10 |______________________ | | | Unified | AASHTO |inches|inches| 4 | 10 | 40 | __________________________________________________________________________________________________________ | In | | | | Pct | Pct | | | |  | | | | | | | | | | 946F3: | | | | | | | | | |  Hickory---------| 0-6 |Clay loam* |CL* |A-6*, A-7 | 0 | 0-5 |95-100|90-100|80-100|6 | 6-42 |Clay loam*, silty|CL* |A-6*, A-7 | 0-1 | 0-5 |85-100|70-100|65-95 |5 | | clay loam, | | | | | | | |  | | gravelly clay | | | | | | | |  | | loam | | | | | | | |  | 42-60 |Loam*, clay loam,|CL-ML*, CL, |A-6*, A-4, | 0-1 | 0-5 |85-100|70-95 |45-95 |2 | | gravelly clay | SC, SC-SM | A-2 | | | | | |  | | loam | | | | | | | |  | | | | | | | | | |  Atlas-----------| 0-6 |Silty clay loam* |CH*, CL |A-7-6* | 0 | 0 | 100 | 100 |95-100|7 | 6-12 |Silty clay loam*,|CH* |A-7-6* | 0 | 0 | 100 |95-100|95-100|7 | | silty clay, clay| | | | | | | |  | | loam | | | | | | | |  | 12-55 |Silty clay*, |CH* |A-7-6* | 0 | 0 | 100 |95-100|95-100|7 | | silty clay loam,| | | | | | | |  | | clay loam | | | | | | | |  | 55-60 |Clay loam*, clay,|CL*, CH |A-7-6*, A-6| 0 | 0 |95-100|90-100|80-100|6 | | loam | | | | | | | |  | | | | | | | | | | 959G: | | | | | | | | | |  Strawn----------| 0-12 |Loam*, silt loam |CL*, CL-ML, |A-6*, A-4 | 0 | 0 |95-100|95-100|90-100|9 | | | ML | | | | | | |  | 12-23 |Clay loam*, loam,|CL* |A-6*, A-7-6| 0-1 | 0-5 |90-100|80-100|75-95 |5 | | silty clay loam | | | | | | | |  | 23-60 |Loam*, silt loam,|CL*, SC |A-6*, A-4 | 0-1 | 0-5 |75-100|70-100|60-95 |4 | | clay loam | | | | | | | |  | | | | | | | | | |  Chute-----------| 0-3 |Fine sand*, fine |SM*, SP-SM |A-2-4*, A-3| 0 | 0 | 100 | 100 |70-95 |  | | sandy loam, | | | | | | | |  | | loamy fine sand | | | | | | | |  | 3-13 |Fine sand*, sand,|SM* |A-2-4*, A-3| 0 | 0 | 100 |95-100|70-95 |  | | loamy fine sand | | | | | | | |  | 13-60 |Fine sand*, sand,|SM*, SP-SM |A-3*, A-2-4| 0 | 0 | 100 |95-100|70-95 |  | | loamy fine sand | | | | | | | |  | | | | | | | | | | 960D2: | | | | | | | | | |  Hickory---------| 0-6 |Silt loam* |CL*, CL-ML |A-6*, A-4 | 0 | 0-5 |95-100|90-100|90-100|7 | 6-51 |Clay loam*, silty|CL* |A-6*, A-7 | 0-1 | 0-5 |95-100|70-100|65-95 |5 | | clay loam, | | | | | | | |  | | gravelly clay | | | | | | | |  | | loam | | | | | | | |  | 51-60 |Clay loam*, loam,|CL-ML*, CL, |A-6*, A-4, | 0-1 | 0-5 |85-100|70-95 |45-95 |2 | | gravelly clay | SC, SC-SM | A-2 | | | | | |  | | loam | | | | | | | |  | | | | | | | | | | 
Table 18.--Engineering Index Properties--Continued ___________________________________________________________________________________________________________

 | | | Classification | Fragments | Percentage passing  Map symbol | Depth | USDA texture |_________________________|_____________| sieve number--  and soil name | | | | | >10 | 3-10 |_______________________ | | | Unified | AASHTO |inches|inches| 4 | 10 | 40 | 2___________________________________________________________________________________________________________ | In | | | | Pct | Pct | | | |  | | | | | | | | | | 960D2: | | | | | | | | | |  Sylvan----------| 0-4 |Silt loam* |CL*, CL-ML |A-4*, A-6 | 0 | 0 | 100 | 100 |95-100|95 | 4-32 |Silty clay loam*,|CL* |A-7-6*, A-6| 0 | 0 | 100 | 100 |95-100|95 | | silt loam | | | | | | | |  | 32-60 |Silt loam*, silt |CL*, CL-ML |A-6*, A-4 | 0 | 0 | 100 | 100 |95-100|95 | | | | | | | | | |  Fayette---------| 0-6 |Silt loam* |CL* |A-6*, A-7-6| 0 | 0 | 100 | 100 | 100 |95 | 6-48 |Silty clay loam*,|CL* |A-6*, A-7-6| 0 | 0 | 100 | 100 | 100 |95 | | silt loam | | | | | | | |  | 48-60 |Silt loam* |CL* |A-6* | 0 | 0 | 100 | 100 | 100 |95 | | | | | | | | | | 960D3: | | | | | | | | | |  Hickory---------| 0-5 |Clay loam* |CL* |A-6*, A-7 | 0 | 0-5 |95-100|90-100|80-100|65 | 5-30 |Clay loam*, silty|CL* |A-6*, A-7 | 0-1 | 0-5 |85-100|70-100|65-95 |50 | | clay loam, | | | | | | | |  | | gravelly clay | | | | | | | |  | | loam | | | | | | | |  | 30-40 |Clay loam*, loam,|CL*, SC |A-6*, A-4 | 0-1 | 0-5 |85-100|70-100|65-95 |50 | | gravelly clay | | | | | | | |  | | loam | | | | | | | |  | 40-60 |Clay loam*, loam,|CL-ML*, CL, |A-6*, A-4, | 0-1 | 0-5 |85-100|70-95 |45-95 |25 | | gravelly clay | SC, SC-SM | A-2 | | | | | |  | | loam | | | | | | | |  | | | | | | | | | |  Sylvan----------| 0-9 |Silty clay loam* |CL* |A-7-6*, A-6| 0 | 0 | 100 | 100 | 100 |95 | 9-28 |Silty clay loam*,|CL* |A-7-6*, A-6| 0 | 0 | 100 | 100 | 100 |95 | | silt loam | | | | | | | |  | 28-60 |Silt loam*, silt |CL*, CL-ML |A-6*, A-4 | 0 | 0 | 100 | 100 |95-100|95 | | | | | | | | | |  Fayette---------| 0-8 |Silty clay loam* |CL* |A-6*, A-7-6| 0 | 0 | 100 | 100 |95-100|95 | 8-36 |Silty clay loam*,|CL* |A-6*, A-7-6| 0 | 0 | 100 | 100 |95-100|95 | | silt loam | | | | | | | |  | 36-60 |Silt loam* |CL* |A-6* | 0 | 0 | 100 | 100 |95-100|95 | | | | | | | | | | 960F: | | | | | | | | | |  Hickory---------| 0-12 |Silt loam* |CL*, CL-ML, |A-4*, A-6 | 0 | 0-5 |95-100|90-100|75-100|55 | | | ML | | | | | | |  | 12-48 |Clay loam*, silty|CL* |A-6*, A-7 | 0-1 | 0-5 |85-100|70-100|65-95 |50 | | clay loam, | | | | | | | |  | | gravelly clay | | | | | | | |  | | loam | | | | | | | |  | 48-60 |Loam*, clay loam,|CL-ML*, CL, |A-6*, A-4 | 0-1 | 0-5 |85-100|70-95 |45-95 |25 | | gravelly clay | SC, SC-SM | | | | | | |  | | loam | | | | | | | |  | | | | | | | | | | 
Table 18.--Engineering Index Properties--Continued __________________________________________________________________________________________________________

 | | | Classification | Fragments | Percentage passing  Map symbol | Depth | USDA texture |_________________________|_____________| sieve number--  and soil name | | | | | >10 | 3-10 |______________________ | | | Unified | AASHTO |inches|inches| 4 | 10 | 40 | __________________________________________________________________________________________________________ | In | | | | Pct | Pct | | | |  | | | | | | | | | | 960F: | | | | | | | | | |  Sylvan----------| 0-6 |Silt loam* |CL*, CL-ML |A-4*, A-6 | 0 | 0 | 100 | 100 |95-100|9 | 6-30 |Silty clay loam*,|CL* |A-7-6*, A-6| 0 | 0 | 100 | 100 |95-100|9 | | silt loam | | | | | | | |  | 30-60 |Silt loam* |CL*, CL-ML |A-6*, A-4 | 0 | 0 | 100 | 100 |95-100|9 | | | | | | | | | |  Fayette---------| 0-10 |Silt loam* |CL*, CL-ML |A-4*, A-6 | 0 | 0 | 100 | 100 |95-100|9 | 10-60 |Silty clay loam*,|CL* |A-6*, A-7-6| 0 | 0 | 100 | 100 |95-100|9 | | silt loam | | | | | | | |  | 60-70 |Silt loam* |CL* |A-6* | 0 | 0 | 100 | 100 |95-100|9 | | | | | | | | | | 961A: | | | | | | | | | |  Burkhardt-------| 0-13 |Sandy loam* |SM*, SC-SM |A-2-4*, A-4| 0 | 0 |95-100|90-100|55-70 |2 | 13-24 |Sandy loam*, loam|SM*, CL, ML, |A-4*, A-2-4| 0 | 0 |95-100|85-100|50-95 |2 | | | SC | | | | | | |  | 24-60 |Stratified gravel|SP*, SP-SM, |A-1-b* | 0 | 0 |50-85 |45-85 |20-35 |  | | to sand* | GP, GP-GM | | | | | | |  | | | | | | | | | |  Saude-----------| 0-14 |Loam* |CL* |A-6* | 0 | 0 | 100 |90-100|70-90 |5 | 14-29 |Loam*, sandy |CL*, CL-ML, |A-4*, A-6 | 0 | 0-5 |85-95 |65-95 |60-85 |4 | | loam, gravelly | SC, SC-SM | | | | | | |  | | sandy loam | | | | | | | |  | 29-60 |Gravelly coarse |SM*, GM, GP |A-1-b* | 0 | 0-10 |50-90 |50-85 |20-40 |  | | sand*, coarse | | | | | | | |  | | sand, loamy | | | | | | | |  | | sand, sand | | | | | | | |  | | | | | | | | | | 962F: | | | | | | | | | |  Sylvan----------| 0-6 |Silt loam* |CL*, CL-ML |A-4*, A-6 | 0 | 0 | 100 | 100 |95-100|9 | 6-30 |Silty clay loam*,|CL* |A-7-6*, A-6| 0 | 0 | 100 | 100 |95-100|9 | | silt loam | | | | | | | |  | 30-60 |Silt loam* |CL*, CL-ML |A-6*, A-4 | 0 | 0 | 100 | 100 |95-100|9 | | | | | | | | | |  Bold------------| 0-3 |Silt loam* |CL*, CL-ML, |A-4*, A-6 | 0 | 0 | 100 | 100 | 100 |9 | | | ML | | | | | | |  | 3-60 |Silt loam* |CL*, CL-ML, |A-4*, A-6 | 0 | 0 | 100 | 100 | 100 |9 | | | ML | | | | | | |  | | | | | | | | | | 1076A: | | | | | | | | | |  Otter-----------| 0-31 |Silt loam* |CL* |A-6*, A-4, | 0 | 0 | 100 |95-100|90-100|8 | | | | A-7-6 | | | | | |  | 31-40 |Silt loam*, loam,|CL* |A-6*, A-7-6| 0 | 0 | 100 |95-100|90-100|8 | | silty clay loam | | | | | | | |  | 40-64 |Silt loam*, sandy|CL*, CL-ML, |A-6*, A-4, | 0 | 0 |90-100|80-100|55-95 |4 | | loam, silty clay| SC, SC-SM | A-7-6 | | | | | |  | | loam | | | | | | | |  | | | | | | | | | | 
Table 18.--Engineering Index Properties--Continued ___________________________________________________________________________________________________________

 | | | Classification | Fragments | Percentage passing  Map symbol | Depth | USDA texture |_________________________|_____________| sieve number--  and soil name | | | | | >10 | 3-10 |_______________________ | | | Unified | AASHTO |inches|inches| 4 | 10 | 40 | 2___________________________________________________________________________________________________________ | In | | | | Pct | Pct | | | |  | | | | | | | | | | 1082A: | | | | | | | | | |  Millington------| 0-19 |Silt loam* |ML*, CL |A-6*, A-4, | 0 | 0 |90-100|90-100|80-100|70 | | | | A-7 | | | | | |  | 19-35 |Loam*, silty clay|CL* |A-6*, A-7 | 0 | 0 |95-100|90-100|80-100|70 | | loam, clay loam | | | | | | | |  | 35-60 |Loam*, stratified|CL*, CL-ML |A-6*, A-4, | 0 | 0 |80-100|80-100|80-100|60 | | sandy loam to | | A-7 | | | | | |  | | loam to silt | | | | | | | |  | | loam to silty | | | | | | | |  | | clay loam | | | | | | | |  | | | | | | | | | | 1107A: | | | | | | | | | |  Sawmill---------| 0-29 |Silty clay loam* |CL* |A-6*, A-7 | 0 | 0 | 100 | 100 |95-100|85 | 29-38 |Silty clay loam* |CL* |A-6*, A-7 | 0 | 0 | 100 | 100 |95-100|85 | 38-60 |Silty clay loam*,|CL* |A-6*, A-4, | 0 | 0 | 100 | 100 |85-100|70 | | clay loam, loam | | A-7 | | | | | |  | | | | | | | | | | 1334A: | | | | | | | | | |  Birds-----------| 0-9 |Silt loam* |CL*, CL-ML |A-4*, A-6 | 0 | 0 | 100 | 100 |90-100|85 | 9-37 |Silt loam*, silty|CL* |A-6*, A-4 | 0 | 0 | 100 | 100 |90-100|85 | | clay loam | | | | | | | |  | 37-60 |Silt loam*, |CL*, CL-ML, |A-4*, A-6 | 0 | 0 | 100 | 100 |65-95 |35 | | stratified sandy| SC | | | | | | |  | | loam to loam to | | | | | | | |  | | silt loam to | | | | | | | |  | | clay loam to | | | | | | | |  | | silty clay loam | | | | | | | |  | | | | | | | | | | 1400A: | | | | | | | | | |  Calco-----------| 0-37 |Silty clay loam*,|CH*, CL |A-7-6* | 0 | 0 | 100 | 100 |95-100|85 | | silty clay | | | | | | | |  | 37-49 |Silty clay loam* |CH*, CL |A-7-6* | 0 | 0 | 100 | 100 |95-100|85 | 49-60 |Loam*, silty clay|CL* |A-6*, A-7-6| 0 | 0 | 100 | 100 |90-100|80 | | loam, clay loam,| | | | | | | |  | | stratified silt | | | | | | | |  | | loam to loam | | | | | | | |  | | | | | | | | | | 1654A: | | | | | | | | | |  Moline----------| 0-14 |Silty clay*, |CH*, CL |A-7-6* | 0 | 0 | 100 | 100 |97-100|91 | | silty clay loam | | | | | | | |  | 14-33 |Clay*, silty clay|CH* |A-7-6* | 0 | 0 | 100 | 100 |94-100|83 | 33-75 |Clay*, silty clay|CH*, CL |A-7-6* | 0 | 0 | 100 | 100 |94-100|83 | 75-98 |Silt loam*, silty|CL* |A-6*, A-7-6| 0 | 0 | 100 | 100 |94-100|83 | | clay loam | | | | | | | |  | | | | | | | | | | 
Table 18.--Engineering Index Properties--Continued __________________________________________________________________________________________________________

 | | | Classification | Fragments | Percentage passing  Map symbol | Depth | USDA texture |_________________________|_____________| sieve number--  and soil name | | | | | >10 | 3-10 |______________________ | | | Unified | AASHTO |inches|inches| 4 | 10 | 40 | __________________________________________________________________________________________________________ | In | | | | Pct | Pct | | | |  | | | | | | | | | | 3074A: | | | | | | | | | |  Radford---------| 0-12 |Silt loam* |CL*, ML |A-6*, A-4 | 0 | 0 | 100 | 100 |95-100|8 | 12-33 |Silt loam* |CL*, ML |A-6*, A-4 | 0 | 0 | 100 | 100 |95-100|8 | 33-60 |Silty clay loam*,|CL* |A-6*, A-7 | 0 | 0 | 100 | 100 |85-100|7 | | silt loam, clay | | | | | | | |  | | loam | | | | | | | |  | | | | | | | | | | 3076A: | | | | | | | | | |  Otter-----------| 0-43 |Silt loam* |CL* |A-6*, A-4, | 0 | 0 | 100 |95-100|90-100|8 | | | | A-7 | | | | | |  | 43-50 |Silt loam*, loam,|CL* |A-6*, A-7 | 0 | 0 | 100 |95-100|90-100|8 | | silty clay loam | | | | | | | |  | 50-60 |Silt loam*, sandy|CL*, CL-ML, |A-6*, A-4, | 0 | 0 |90-100|80-100|55-95 |4 | | loam, silty clay| SC, SC-SM | A-7 | | | | | |  | | loam | | | | | | | |  | | | | | | | | | | 3082A: | | | | | | | | | |  Millington------| 0-19 |Silt loam* |ML*, CL |A-6*, A-4, | 0 | 0 |90-100|90-100|80-100|7 | | | | A-7 | | | | | |  | 19-35 |Loam*, silty clay|CL* |A-6*, A-7 | 0 | 0 |95-100|90-100|80-100|7 | | loam, clay loam | | | | | | | |  | 35-60 |Loam*, stratified|CL*, CL-ML |A-6*, A-4, | 0 | 0 |80-100|80-100|80-100|6 | | sandy loam to | | A-7 | | | | | |  | | loam to silt | | | | | | | |  | | loam to silty | | | | | | | |  | | clay loam | | | | | | | |  | | | | | | | | | | 3083A: | | | | | | | | | |  Wabash----------| 0-15 |Silty clay* |CH* |A-7-6* | 0 | 0 | 100 | 100 |95-100|9 | 15-60 |Silty clay*, clay|CH* |A-7-6* | 0 | 0 | 100 | 100 |95-100|9 | | | | | | | | | | 3107A: | | | | | | | | | |  Sawmill---------| 0-26 |Silty clay loam* |CL* |A-6*, A-7 | 0 | 0 | 100 | 100 |95-100|8 | 26-54 |Silty clay loam* |CL* |A-6*, A-7 | 0 | 0 | 100 | 100 |95-100|8 | 54-60 |Silty clay loam*,|CL* |A-6*, A-4, | 0 | 0 | 100 | 100 |85-100|7 | | clay loam, loam | | A-7 | | | | | |  | | | | | | | | | | 3239A: | | | | | | | | | |  Dorchester------| 0-9 |Silt loam* |CL*, CL-ML, |A-4* | 0 | 0 |95-100|95-100|80-100|7 | | | ML | | | | | | |  | 9-32 |Silt loam* |CL*, CL-ML, |A-4* | 0 | 0 |95-100|95-100|80-100|7 | | | ML | | | | | | |  | 32-60 |Silt loam*, silty|CL*, ML |A-6*, A-7-6| 0 | 0 | 100 | 100 |95-100|9 | | clay loam, clay | | | | | | | |  | | loam | | | | | | | |  | | | | | | | | | | 
Table 18.--Engineering Index Properties--Continued ___________________________________________________________________________________________________________

 | | | Classification | Fragments | Percentage passing  Map symbol | Depth | USDA texture |_________________________|_____________| sieve number--  and soil name | | | | | >10 | 3-10 |_______________________ | | | Unified | AASHTO |inches|inches| 4 | 10 | 40 | 2___________________________________________________________________________________________________________ | In | | | | Pct | Pct | | | |  | | | | | | | | | | 3400A: | | | | | | | | | |  Calco-----------| 0-34 |Silty clay loam*,|CH*, CL |A-7-6* | 0 | 0 | 100 | 100 |95-100|85 | | silty clay | | | | | | | |  | 34-45 |Silty clay loam* |CH*, CL |A-7-6* | 0 | 0 | 100 | 100 |95-100|85 | 45-60 |Stratified silt |CL* |A-6*, A-7-6| 0 | 0 | 100 | 100 |90-100|80 | | loam to loam*, | | | | | | | |  | | silty clay loam,| | | | | | | |  | | loam, clay loam | | | | | | | |  | | | | | | | | | | 3415A: | | | | | | | | | |  Orion-----------| 0-7 |Silt loam* |CL*, CL-ML |A-4*, A-6 | 0 | 0 | 100 | 100 |85-100|80 | 7-22 |Stratified very |CL-ML*, CL |A-4* | 0 | 0 | 100 | 100 |90-100|70 | | fine sand to | | | | | | | |  | | silt loam* | | | | | | | |  | 22-60 |Silt loam*, silty|CL*, CL-ML |A-6*, A-4 | 0 | 0 | 100 | 100 |85-100|85 | | clay loam | | | | | | | |  | 60-80 |Stratified sand |CL-ML*, CL |A-4* | 0 | 0 |80-100|80-100|80-100|80 | | to silt loam* | | | | | | | |  | | | | | | | | | | 3428A: | | | | | | | | | |  Coffeen---------| 0-17 |Silt loam* |CL*, CL-ML |A-6*, A-4 | 0 | 0 | 100 | 100 |90-100|85 | 17-33 |Silt loam* |CL*, CL-ML, |A-4* | 0 | 0 | 100 | 100 |90-100|80 | | | ML | | | | | | |  | 33-60 |Stratified silt |CL-ML*, CL, |A-2*, A-4 | 0 | 0 | 100 |90-100|85-100|30 | | loam to sandy | ML, SC, SM | | | | | | |  | | loam* | | | | | | | |  | | | | | | | | | | 3451A: | | | | | | | | | |  Lawson----------| 0-14 |Silt loam* |CL*, CL-ML |A-6*, A-4 | 0 | 0 | 100 | 100 |90-100|85 | 14-33 |Silt loam*, silty|CL*, CL-ML |A-4* | 0 | 0 | 100 | 100 |90-100|85 | | clay loam | | | | | | | |  | 33-80 |Silt loam*, silty|CL* |A-6*, A-4 | 0 | 0 | 100 | 100 |90-100|60 | | clay loam | | | | | | | |  | | | | | | | | | | 3646L: | | | | | | | | | |  Fluvaquents-----| 0-9 |Silt loam* |CL*, CL-ML |A-4*, A-6 | 0 | 0 | 100 | 100 |90-100|85 | 9-37 |Silt loam*, silty|CL*, CL-ML |A-6*, A-4 | 0 | 0 | 100 | 100 |90-100|85 | | clay loam | | | | | | | |  | 37-60 |Stratified sandy |CL*, CL-ML, |A-4*, A-6 | 0 | 0 | 100 | 100 |65-95 |35 | | loam to silt | SC | | | | | | |  | | loam* | | | | | | | |  | | | | | | | | | | 
Table 18.--Engineering Index Properties--Continued ___________________________________________________________________________________________________________

 | | | Classification | Fragments | Percentage passing  Map symbol | Depth | USDA texture |_________________________|_____________| sieve number--  and soil name | | | | | >10 | 3-10 |_______________________ | | | Unified | AASHTO |inches|inches| 4 | 10 | 40 | 2___________________________________________________________________________________________________________ | In | | | | Pct | Pct | | | |  | | | | | | | | | | 7076A: | | | | | | | | | |  Otter-----------| 0-38 |Silt loam* |CL* |A-6*, A-4, | 0 | 0 | 100 |95-100|90-100|80 | | | | A-7-6 | | | | | |  | 38-50 |Silt loam*, loam,|CL* |A-6*, A-7-6| 0 | 0 | 100 |95-100|90-100|80 | | silty clay loam | | | | | | | |  | 50-60 |Silt loam*, sandy|CL*, CL-ML, |A-6*, A-4, | 0 | 0 |90-100|80-100|55-95 |45 | | loam, silty clay| SC, SC-SM | A-7-6 | | | | | |  | | loam | | | | | | | |  | | | | | | | | | | 7083A: | | | | | | | | | |  Wabash----------| 0-15 |Silty clay* |CH* |A-7-6* | 0 | 0 | 100 | 100 |95-100|95 | 15-60 |Silty clay*, clay|CH* |A-7-6* | 0 | 0 | 100 | 100 |95-100|95 | | | | | | | | | | 7107A: | | | | | | | | | |  Sawmill---------| 0-10 |Silty clay loam* |CL* |A-6*, A-7 | 0 | 0 | 100 | 100 |95-100|85 | 10-35 |Silty clay loam* |CL* |A-6*, A-7 | 0 | 0 | 100 | 100 |95-100|85 | 35-60 |Silty clay loam*,|CL* |A-6*, A-4, | 0 | 0 | 100 |90-100|85-100|70 | | clay loam, silt | | A-7 | | | | | |  | | loam | | | | | | | |  | | | | | | | | | | 7239A: | | | | | | | | | |  Dorchester------| 0-9 |Silt loam* |CL*, CL-ML, |A-4* | 0 | 0 |95-100|95-100|80-100|70 | | | ML | | | | | | |  | 9-32 |Silt loam* |CL*, CL-ML, |A-4* | 0 | 0 |95-100|95-100|80-100|70 | | | ML | | | | | | |  | 32-60 |Silt loam*, silty|CL*, ML |A-6*, A-7-6| 0 | 0 | 100 | 100 |95-100|90 | | clay loam, clay | | | | | | | |  | | loam | | | | | | | |  | | | | | | | | | | 7304A: | | | | | | | | | |  Landes----------| 0-19 |Fine sandy loam* |SC-SM*, SC, |A-4*, A-2-4| 0 | 0 | 100 |85-100|85-95 |30 | | | SM | | | | | | |  | 19-32 |Fine sandy loam*,|SC-SM*, SC, |A-2-4*, A-4| 0 | 0 | 100 |85-100|70-95 |15 | | loam, very fine | SM, CL-ML | | | | | | |  | | sandy loam, | | | | | | | |  | | loamy fine sand | | | | | | | |  | 32-60 |Sand*, fine sandy|SC-SM*, SC, |A-2-4*, A-4| 0 | 0 | 100 |85-100|60-85 | 5 | | loam, stratified| SM, SP-SM | | | | | | |  | | sand to silt | | | | | | | |  | | loam, loamy fine| | | | | | | |  | | sand | | | | | | | |  | | | | | | | | | | 
Table 18.--Engineering Index Properties--Continued ___________________________________________________________________________________________________________

 | | | Classification | Fragments | Percentage passing  Map symbol | Depth | USDA texture |_________________________|_____________| sieve number--  and soil name | | | | | >10 | 3-10 |_______________________ | | | Unified | AASHTO |inches|inches| 4 | 10 | 40 | 2___________________________________________________________________________________________________________ | In | | | | Pct | Pct | | | |  | | | | | | | | | | 7415A: | | | | | | | | | |  Orion-----------| 0-21 |Silt loam* |CL*, CL-ML |A-4*, A-6 | 0 | 0 | 100 | 100 |95-100|85 | 21-27 |Stratified very |CL-ML*, CL |A-4* | 0 | 0 | 100 | 100 |90-100|85 | | fine sand to | | | | | | | |  | | silt loam* | | | | | | | |  | 27-45 |Silt loam*, silty|CL*, CL-ML |A-6*, A-4 | 0 | 0 | 100 | 100 |85-100|85 | | clay loam | | | | | | | |  | 45-60 |Stratified sand |CL-ML*, CL |A-4*, A-2-4| 0 | 0 |80-100|80-100|80-100|30 | | to silt loam* | | | | | | | |  | | | | | | | | | | 7428A: | | | | | | | | | |  Coffeen---------| 0-20 |Silt loam* |CL*, CL-ML |A-6*, A-4 | 0 | 0 | 100 | 100 |95-100|85 | 20-32 |Silt loam* |CL-ML*, CL, |A-4* | 0 | 0 | 100 | 100 |90-100|80 | | | ML | | | | | | |  | 32-60 |Stratified sandy |CL-ML*, CL, |A-4*, A-2-4| 0 | 0 | 100 |90-100|85-100|30 | | loam to silt | ML, SC | | | | | | |  | | loam* | | | | | | | |  | | | | | | | | | | 7451A: | | | | | | | | | |  Lawson----------| 0-14 |Silt loam* |CL*, CL-ML |A-6*, A-4 | 0 | 0 | 100 | 100 |90-100|85 | 14-33 |Silt loam*, silty|CL*, CL-ML |A-4* | 0 | 0 | 100 | 100 |90-100|85 | | clay loam | | | | | | | |  | 33-80 |Silt loam*, silty|CL* |A-6*, A-7-6| 0 | 0 | 100 | 100 |90-100|60 | | clay loam | | | | | | | |  | | | | | | | | | | 7654A: | | | | | | | | | |  Moline----------| 0-14 |Silty clay*, |CH*, CL |A-7-6* | 0 | 0 | 100 | 100 |97-100|91 | | silty clay loam | | | | | | | |  | 14-33 |Clay*, silty clay|CH* |A-7-6* | 0 | 0 | 100 | 100 |94-100|83 | 33-75 |Clay*, silty clay|CH*, CL |A-7-6* | 0 | 0 | 100 | 100 |94-100|83 | 75-98 |Silt loam*, silty|CL* |A-6*, A-7-6| 0 | 0 | 100 | 100 |94-100|83 | | clay loam | | | | | | | |  | | | | | | | | | | 8107+: | | | | | | | | | |  Sawmill---------| 0-8 |Silt loam* |CL* |A-6* | 0 | 0 | 100 | 100 |80-100|75 | 8-14 |Silty clay loam* |CL* |A-6*, A-7 | 0 | 0 | 100 | 100 |95-100|85 | 14-46 |Silty clay loam* |CL* |A-6*, A-7 | 0 | 0 | 100 | 100 |95-100|85 | 46-60 |Silty clay loam*,|CL* |A-6*, A-4, | 0 | 0 | 100 | 100 |85-100|70 | | clay loam, loam | | A-7 | | | | | |  | | | | | | | | | | 
Table 18.--Engineering Index Properties--Continued __________________________________________________________________________________________________________

 | | | Classification | Fragments | Percentage passing  Map symbol | Depth | USDA texture |_________________________|_____________| sieve number--  and soil name | | | | | >10 | 3-10 |______________________ | | | Unified | AASHTO |inches|inches| 4 | 10 | 40 | __________________________________________________________________________________________________________ | In | | | | Pct | Pct | | | |  | | | | | | | | | | 8302A: | | | | | | | | | |  Ambraw----------| 0-9 |Loam* |CL* |A-6*, A-7-6| 0 | 0 | 100 | 100 |85-95 |5 | 9-32 |Clay loam*, clay,|CL*, CH |A-7-6*, A-6| 0 | 0 | 100 | 100 |80-90 |6 | | loam | | | | | | | |  | 32-38 |Clay loam*, sandy|CL*, SC |A-6*, A-7-6| 0 | 0 | 100 |90-100|85-95 |4 | | clay loam | | | | | | | |  | 38-60 |Stratified clay |CL*, ML, SC, |A-4*, A-6 | 0 | 0 | 100 |90-100|80-90 |4 | | loam to sandy | SM | | | | | | |  | | loam* | | | | | | | |  | | | | | | | | | | 8400A: | | | | | | | | | |  Calco-----------| 0-34 |Silty clay loam*,|CH*, CL |A-7-6* | 0 | 0 | 100 | 100 |95-100|8 | | silty clay | | | | | | | |  | 34-45 |Silty clay loam* |CH*, CL |A-7-6* | 0 | 0 | 100 | 100 |95-100|8 | 45-60 |Stratified silt |CL* |A-6*, A-7-6| 0 | 0 | 100 | 100 |90-100|8 | | loam to loam*, | | | | | | | |  | | silty clay loam,| | | | | | | |  | | loam, clay loam | | | | | | | |  | | | | | | | | | | 8404A: | | | | | | | | | |  Titus-----------| 0-13 |Silty clay loam* |CH*, CL |A-7* | 0 | 0 | 100 | 100 |95-100|9 | 13-68 |Silty clay loam*,|CH*, CL |A-7* | 0 | 0 | 100 | 100 |95-100|9 | | silty clay | | | | | | | |  | 68-80 |Silty clay loam*,|CL* |A-6* | 0 | 0 | 100 |90-100|70-90 |5 | | silt loam, loam | | | | | | | |  | | | | | | | | | | __________________________________________________________________________________________________________
360 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 |_______________|erodi-|erodi-

 and soil name | | | bulk | bility | water |extensi- | | | |bility|bility

 | | | density | (Ksat) |capacity | bility | Kw | Kf | T |group |index ___________________________________________________________________________________________________________

 | In | Pct | g/cc | In/hr | In/in | Pct | | | | |

 | | | | | | | | | | |

8D2: | | | | | | | | | | |

 Hickory-------------| 0-6 | 19-25|1.30-1.50| 0.6-2 |0.20-0.22| 0.0-2.9 | .32 | .32 | 5 | 6 | 48

 | 6-51 | 27-35|1.45-1.65| 0.6-2 |0.15-0.19| 3.0-5.9 | .28 | .32 | | |

 | 51-60 | 15-32|1.50-1.70| 0.6-2 |0.11-0.19| 0.0-2.9 | .28 | .32 | | |

 | | | | | | | | | | |

8D3: | | | | | | | | | | |

 Hickory-------------| 0-5 | 27-35|1.40-1.65| 0.6-2 |0.17-0.19| 3.0-5.9 | .24 | .24 | 4 | 6 | 48

 | 5-30 | 24-35|1.45-1.65| 0.6-2 |0.15-0.19| 3.0-5.9 | .28 | .32 | | |

 | 30-40 | 24-35|1.45-1.65| 0.6-2 |0.15-0.19| 3.0-5.9 | .28 | .32 | | |

 | 40-60 | 15-30|1.50-1.75| 0.6-2 |0.10-0.15| 0.0-2.9 | .28 | .32 | | |

 | | | | | | | | | | |

8F: | | | | | | | | | | |

 Hickory-------------| 0-12 | 19-25|1.30-1.50| 0.6-2 |0.20-0.22| 0.0-2.9 | .32 | .32 | 5 | 6 | 48

 | 12-53 | 24-35|1.45-1.65| 0.6-2 |0.15-0.19| 3.0-5.9 | .28 | .32 | | |

 | 53-58 | 15-32|1.50-1.70| 0.6-2 |0.11-0.19| 0.0-2.9 | .28 | .32 | | |

 | 58-63 | 15-30|1.50-1.75| 0.6-2 |0.10-0.15| 0.0-2.9 | .28 | .32 | | |

 | | | | | | | | | | |

8F3: | | | | | | | | | | |

 Hickory-------------| 0-6 | 27-35|1.40-1.65| 0.6-2 |0.17-0.19| 3.0-5.9 | .24 | .24 | 4 | 6 | 48

 | 6-42 | 27-35|1.45-1.65| 0.6-2 |0.15-0.19| 3.0-5.9 | .28 | .32 | | |

 | 42-60 | 15-32|1.50-1.70| 0.6-2 |0.11-0.19| 0.0-2.9 | .28 | .32 | | |

 | | | | | | | | | | |

19C3: | | | | | | | | | | |

 Sylvan--------------| 0-7 | 27-32|1.25-1.45| 0.6-2 |0.20-0.22| 3.0-5.9 | .43 | .43 | 5 | 7 | 38

 | 7-37 | 25-35|1.30-1.50| 0.6-2 |0.18-0.20| 3.0-5.9 | .37 | .37 | | |

 | 37-60 | 10-27|1.30-1.50| 0.6-2 |0.20-0.22| 0.0-2.9 | .49 | .49 | | |

 | | | | | | | | | | |

19D: | | | | | | | | | | |

 Sylvan--------------| 0-5 | 18-27|1.20-1.40| 0.6-2 |0.22-0.24| 0.0-2.9 | .43 | .43 | 5 | 6 | 48

 | 5-10 | 15-25|1.25-1.45| 0.6-2 |0.20-0.22| 0.0-2.9 | .49 | .49 | | |

 | 10-35 | 25-35|1.30-1.50| 0.6-2 |0.18-0.20| 3.0-5.9 | .37 | .37 | | |

 | 35-60 | 10-27|1.30-1.50| 0.6-2 |0.20-0.22| 0.0-2.9 | .49 | .49 | | |

 | | | | | | | | | | |

19D3: | | | | | | | | | | |

 Sylvan--------------| 0-9 | 27-32|1.25-1.45| 0.6-2 |0.20-0.22| 3.0-5.9 | .43 | .43 | 4 | 7 | 38

 | 9-28 | 25-35|1.30-1.50| 0.6-2 |0.18-0.20| 3.0-5.9 | .37 | .37 | | |

 | 28-60 | 10-27|1.30-1.50| 0.6-2 |0.20-0.22| 0.0-2.9 | .49 | .49 | | |

 | | | | | | | | | | |

19F: | | | | | | | | | | |

 Sylvan--------------| 0-5 | 18-24|1.20-1.40| 0.6-2 |0.22-0.24| 0.0-2.9 | .43 | .43 | 5 | 6 | 48

 | 5-10 | 15-25|1.25-1.45| 0.6-2 |0.20-0.22| 0.0-2.9 | .49 | .49 | | |

 | 10-27 | 25-35|1.30-1.50| 0.6-2 |0.18-0.20| 3.0-5.9 | .37 | .37 | | |

 | 27-80 | 10-27|1.30-1.50| 0.6-2 |0.20-0.22| 0.0-2.9 | .49 | .49 | | |

 | | | | | | | | | | |

19F3: | | | | | | | | | | |

 Sylvan--------------| 0-6 | 27-32|1.25-1.45| 0.6-2 |0.20-0.22| 3.0-5.9 | .43 | .43 | 4 | 7 | 38

 | 6-30 | 25-35|1.30-1.50| 0.6-2 |0.18-0.20| 3.0-5.9 | .37 | .37 | | |

 | 30-60 | 10-27|1.30-1.50| 0.6-2 |0.20-0.22| 0.0-2.9 | .49 | .49 | | |

 | | | | | | | | | | |

45A: | | | | | | | | | | |

 Denny---------------| 0-9 | 20-27|1.25-1.45| 0.6-2 |0.22-0.24| 0.0-2.9 | .37 | .37 | 5 | 6 | 48

 | 9-22 | 15-22|1.25-1.45| 0.2-0.6 |0.18-0.20| 0.0-2.9 | .43 | .43 | | |

 | 22-45 | 35-45|1.20-1.40|0.06-0.2 |0.11-0.22| 6.0-8.9 | .37 | .37 | | |

 | 45-60 | 25-35|1.40-1.60| 0.2-0.6 |0.20-0.22| 3.0-5.9 | .43 | .43 | | |

 | | | | | | | | | | |
Rock Island County, Illinois 361

Table 19.--Physical Properties of the Soils--Continued

___________________________________________________________________________________________________________

 | | | | | | |Erosion factors|Wind |Wind

 Map symbol | Depth | Clay | Moist | Permea- |Available| Linear |_______________|erodi-|erodi-

 and soil name | | | bulk | bility | water |extensi- | | | |bility|bility

 | | | density | (Ksat) |capacity | bility | Kw | Kf | T |group |index ___________________________________________________________________________________________________________

 | In | Pct | g/cc | In/hr | In/in | Pct | | | | |

 | | | | | | | | | | |

51A: | | | | | | | | | | |

 Muscatune-----------| 0-16 | 24-27|1.25-1.45| 0.6-2 |0.22-0.24| 0.0-2.9 | .28 | .28 | 5 | 6 | 48

 | 16-22 | 25-35|1.30-1.50| 0.6-2 |0.18-0.21| 3.0-5.9 | .37 | .37 | | |

 | 22-46 | 27-35|1.35-1.55| 0.6-2 |0.18-0.20| 3.0-5.9 | .37 | .37 | | |

 | 46-60 | 15-30|1.40-1.60| 0.6-2 |0.19-0.26| 0.0-2.9 | .49 | .49 | | |

 | | | | | | | | | | |

61A: | | | | | | | | | | |

 Atterberry----------| 0-9 | 15-27|1.25-1.45| 0.6-2 |0.19-0.26| 0.0-2.9 | .37 | .37 | 5 | 6 | 48

 | 9-17 | 15-27|1.40-1.60| 0.6-2 |0.17-0.21| 0.0-2.9 | .43 | .43 | | |

 | 17-48 | 25-35|1.35-1.55| 0.6-2 |0.16-0.20| 3.0-5.9 | .37 | .37 | | |

 | 48-60 | 15-27|1.30-1.50| 0.6-2 |0.17-0.22| 0.0-2.9 | .49 | .49 | | |

 | | | | | | | | | | |

68A: | | | | | | | | | | |

 Sable---------------| 0-17 | 27-35|1.15-1.35| 0.6-2 |0.21-0.23| 3.0-5.9 | .24 | .24 | 5 | 7 | 38

 | 17-23 | 27-35|1.20-1.40| 0.6-2 |0.18-0.20| 3.0-5.9 | .24 | .24 | | |

 | 23-60 | 24-35|1.30-1.50| 0.6-2 |0.18-0.20| 3.0-5.9 | .37 | .37 | | |

 | | | | | | | | | | |

86B: | | | | | | | | | | |

 Osco----------------| 0-14 | 20-26|1.25-1.30| 0.6-2 |0.22-0.24| 3.0-5.9 | .28 | .28 | 5 | 6 | 48

 | 14-55 | 24-35|1.30-1.35| 0.6-2 |0.18-0.20| 3.0-5.9 | .37 | .37 | | |

 | 55-60 | 20-30|1.35-1.40| 0.6-2 |0.18-0.20| 3.0-5.9 | .49 | .49 | | |

 | | | | | | | | | | |

86C2: | | | | | | | | | | |

 Osco----------------| 0-9 | 20-26|1.25-1.30| 0.6-2 |0.22-0.24| 3.0-5.9 | .37 | .37 | 5 | 6 | 48

 | 9-34 | 24-35|1.30-1.35| 0.6-2 |0.18-0.20| 3.0-5.9 | .37 | .37 | | |

 | 34-60 | 20-30|1.35-1.40| 0.6-2 |0.18-0.20| 3.0-5.9 | .49 | .49 | | |

 | | | | | | | | | | |

87A: | | | | | | | | | | |

 Dickinson-----------| 0-8 | 10-18|1.50-1.55| 2-6 |0.12-0.15| 0.0-2.9 | .15 | .15 | 4 | 3 | 86

 | 8-20 | 10-18|1.50-1.55| 2-6 |0.12-0.15| 0.0-2.9 | .15 | .15 | | |

 | 20-31 | 10-15|1.45-1.55| 2-6 |0.12-0.15| 0.0-2.9 | .24 | .24 | | |

 | 31-36 | 4-10|1.55-1.65| 6-20 |0.08-0.10| 0.0-2.9 | .15 | .15 | | |

 | 36-60 | 4-10|1.60-1.70| 6-20 |0.02-0.04| 0.0-2.9 | .05 | .05 | | |

 | | | | | | | | | | |

87C2: | | | | | | | | | | |

 Dickinson-----------| 0-11 | 10-18|1.50-1.55| 2-6 |0.12-0.15| 0.0-2.9 | .17 | .17 | 4 | 3 | 86

 | 11-29 | 10-15|1.45-1.55| 2-6 |0.12-0.15| 0.0-2.9 | .24 | .24 | | |

 | 29-35 | 4-10|1.55-1.65| 6-20 |0.08-0.10| 0.0-2.9 | .17 | .17 | | |

 | 35-60 | 4-10|1.60-1.70| 6-20 |0.02-0.04| 0.0-2.9 | .15 | .15 | | |

 | | | | | | | | | | |

88A: | | | | | | | | | | |

 Sparta--------------| 0-17 | 0-10|1.20-1.40| 2-6 |0.09-0.12| 0.0-2.9 | .02 | .02 | 5 | 2 | 134

 | 17-31 | 1-8 |1.40-1.60| 6-20 |0.05-0.11| 0.0-2.9 | .10 | .10 | | |

 | 31-72 | 3-16|1.50-1.70| 6-20 |0.06-0.08| 0.0-2.9 | .17 | .17 | | |

 | | | | | | | | | | |

172A: | | | | | | | | | | |

 Hoopeston-----------| 0-14 | 8-18|1.35-1.70| 2-6 |0.12-0.15| 0.0-2.9 | .15 | .15 | 4 | 3 | 86

 | 14-38 | 10-18|1.45-1.70| 2-6 |0.12-0.17| 0.0-2.9 | .24 | .24 | | |

 | 38-60 | 2-12|1.50-1.70| 6-20 |0.05-0.10| 0.0-2.9 | .05 | .05 | | |

 | | | | | | | | | | |

212B: | | | | | | | | | | |

 Thebes--------------| 0-9 | 15-25|1.30-1.35| 0.6-2 |0.20-0.22| 0.0-2.9 | .43 | .43 | 5 | 5 | 48

 | 9-31 | 25-35|1.30-1.45| 0.6-2 |0.18-0.20| 3.0-5.9 | .37 | .37 | | |

 | 31-40 | 15-30|1.30-1.35| 2-6 |0.11-0.17| 0.0-2.9 | .32 | .32 | | |

 | 40-80 | 3-10|1.30-1.35| 6-20 |0.05-0.10| 0.0-2.9 | .17 | .17 | | |

 | | | | | | | | | | |

250D: | | | | | | | | | | |

 Velma---------------| 0-16 | 20-27|1.30-1.50| 0.6-2 |0.20-0.24| 0.0-2.9 | .20 | .24 | 5 | 6 | 48

 | 16-54 | 25-35|1.45-1.65| 0.6-2 |0.15-0.19| 3.0-5.9 | .28 | .32 | | |

 | 54-80 | 18-30|1.50-1.70| 0.6-2 |0.06-0.09| 0.0-2.9 | .28 | .32 | | |

 | | | | | | | | | | |
362 Soil Survey of

Table 19.--Physical Properties of the Soils--Continued

___________________________________________________________________________________________________________

 | | | | | | |Erosion factors|Wind |Wind

 Map symbol | Depth | Clay | Moist | Permea- |Available| Linear |_______________|erodi-|erodi-

 and soil name | | | bulk | bility | water |extensi- | | | |bility|bility

 | | | density | (Ksat) |capacity | bility | Kw | Kf | T |group |index ___________________________________________________________________________________________________________

 | In | Pct | g/cc | In/hr | In/in | Pct | | | | |

 | | | | | | | | | | |

261A: | | | | | | | | | | |

 Niota---------------| 0-9 | 20-27|1.20-1.35| 0.2-0.6 |0.22-0.24| 0.0-2.9 | .37 | .37 | 3 | 6 | 48

 | 9-16 | 18-25|1.30-1.55| 0.2-0.6 |0.18-0.22| 0.0-2.9 | .43 | .43 | | |

 | 16-27 | 38-60|1.40-1.60|.001-0.06 |0.09-0.13| 6.0-8.9 | .32 | .32 | | |

 | 27-36 | 25-40|1.40-1.60| 0.2-0.6 |0.17-0.22| 3.0-5.9 | .37 | .37 | | |

 | 36-49 | 12-25|1.50-1.70| 0.2-2 |0.08-0.20| 3.0-5.9 | .32 | .32 | | |

 | 49-60 | 5-20|1.50-1.70| 2-6 |0.11-0.22| 0.0-2.9 | .28 | .28 | | |

 | | | | | | | | | | |

274B: | | | | | | | | | | |

 Seaton--------------| 0-9 | 10-22|1.10-1.45| 0.6-2 |0.22-0.24| 0.0-2.9 | .43 | .43 | 5 | 5 | 56

 | 9-60 | 18-27|1.20-1.60| 0.6-2 |0.20-0.22| 0.0-2.9 | .43 | .43 | | |

 | 60-80 | 10-25|1.20-1.50| 0.6-2 |0.20-0.22| 0.0-2.9 | .49 | .49 | | |

 | | | | | | | | | | |

274B2: | | | | | | | | | | |

 Seaton--------------| 0-9 | 10-22|1.10-1.45| 0.6-2 |0.22-0.24| 0.0-2.9 | .43 | .43 | 5 | 5 | 56

 | 9-53 | 18-27|1.20-1.60| 0.6-2 |0.20-0.22| 0.0-2.9 | .43 | .43 | | |

 | 53-60 | 10-25|1.20-1.50| 0.6-2 |0.20-0.22| 0.0-2.9 | .49 | .49 | | |

 | | | | | | | | | | |

274C2: | | | | | | | | | | |

 Seaton--------------| 0-7 | 15-22|1.10-1.20| 0.6-2 |0.22-0.24| 0.0-2.9 | .43 | .43 | 5 | 5 | 56

 | 7-47 | 18-27|1.15-1.30| 0.6-2 |0.20-0.22| 0.0-2.9 | .43 | .43 | | |

 | 47-60 | 10-25|1.20-1.50| 0.6-2 |0.20-0.22| 0.0-2.9 | .49 | .49 | | |

 | | | | | | | | | | |

274D2: | | | | | | | | | | |

 Seaton--------------| 0-8 | 15-22|1.10-1.20| 0.6-2 |0.22-0.24| 0.0-2.9 | .37 | .37 | 5 | 5 | 56

 | 8-52 | 18-27|1.15-1.30| 0.6-2 |0.20-0.22| 0.0-2.9 | .37 | .37 | | |

 | 52-60 | 10-25|1.20-1.50| 0.6-2 |0.20-0.22| 0.0-2.9 | .49 | .49 | | |

 | | | | | | | | | | |

275A: | | | | | | | | | | |

 Joy-----------------| 0-15 | 15-25|1.10-1.20| 0.6-2 |0.22-0.24| 0.0-2.9 | .28 | .28 | 5 | 6 | 48

 | 15-51 | 18-27|1.15-1.25| 0.6-2 |0.20-0.22| 0.0-2.9 | .43 | .43 | | |

 | 51-60 | 12-23|1.15-1.30| 0.6-2 |0.20-0.22| 0.0-2.9 | .49 | .49 | | |

 | | | | | | | | | | |

278A: | | | | | | | | | | |

 Stronghurst---------| 0-8 | 20-27|1.25-1.45| 0.6-2 |0.22-0.24| 0.0-2.9 | .43 | .43 | 5 | 6 | 48

 | 8-47 | 22-35|1.30-1.55| 0.6-2 |0.18-0.20| 3.0-5.9 | .37 | .37 | | |

 | 47-60 | 20-27|1.35-1.60| 0.6-2 |0.20-0.22| 0.0-2.9 | .49 | .49 | | |

 | | | | | | | | | | |

279A: | | | | | | | | | | |

 Rozetta-------------| 0-4 | 15-27|1.20-1.40| 0.6-2 |0.22-0.24| 0.0-2.9 | .43 | .43 | 5 | 6 | 48

 | 4-11 | 12-27|1.20-1.40| 0.6-2 |0.22-0.24| 0.0-2.9 | .49 | .49 | | |

 | 11-50 | 27-35|1.35-1.55| 0.6-2 |0.18-0.22| 3.0-5.9 | .37 | .37 | | |

 | 50-60 | 20-30|1.40-1.60| 0.6-2 |0.20-0.22| 0.0-2.9 | .49 | .49 | | |

 | | | | | | | | | | |

279B: | | | | | | | | | | |

 Rozetta-------------| 0-7 | 15-27|1.20-1.40| 0.6-2 |0.22-0.24| 0.0-2.9 | .43 | .43 | 5 | 6 | 48

 | 7-11 | 12-27|1.20-1.40| 0.6-2 |0.22-0.24| 0.0-2.9 | .49 | .49 | | |

 | 11-55 | 27-35|1.35-1.55| 0.6-2 |0.18-0.22| 3.0-5.9 | .37 | .37 | | |

 | 55-60 | 20-30|1.40-1.60| 0.6-2 |0.20-0.22| 0.0-2.9 | .49 | .49 | | |

 | | | | | | | | | | |

280B: | | | | | | | | | | |

 Fayette-------------| 0-9 | 15-27|1.30-1.35| 0.6-2 |0.20-0.22| 0.0-2.9 | .43 | .43 | 5 | 6 | 48

 | 9-39 | 25-35|1.30-1.45| 0.6-2 |0.18-0.20| 3.0-5.9 | .37 | .37 | | |

 | 39-60 | 22-26|1.45-1.50| 0.6-2 |0.18-0.20| 3.0-5.9 | .49 | .49 | | |

 | | | | | | | | | | |

280B2: | | | | | | | | | | |

 Fayette-------------| 0-8 | 25-27|1.35-1.45| 0.6-2 |0.18-0.20| 3.0-5.9 | .43 | .43 | 5 | 6 | 48

 | 8-56 | 25-35|1.30-1.45| 0.6-2 |0.18-0.20| 3.0-5.9 | .37 | .37 | | |

 | 56-80 | 22-26|1.45-1.50| 0.6-2 |0.18-0.20| 3.0-5.9 | .49 | .49 | | |

 | | | | | | | | | | |

280C2: | | | | | | | | | | |

 Fayette-------------| 0-8 | 25-27|1.35-1.45| 0.6-2 |0.18-0.20| 3.0-5.9 | .43 | .43 | 5 | 6 | 48

 | 8-64 | 25-35|1.30-1.45| 0.6-2 |0.18-0.20| 3.0-5.9 | .37 | .37 | | |

 | 64-80 | 22-26|1.45-1.50| 0.6-2 |0.18-0.20| 3.0-5.9 | .49 | .49 | | |

 | | | | | | | | | | |
Rock Island County, Illinois 363

Table 19.--Physical Properties of the Soils--Continued

___________________________________________________________________________________________________________

 | | | | | | |Erosion factors|Wind |Wind

 Map symbol | Depth | Clay | Moist | Permea- |Available| Linear |_______________|erodi-|erodi-

 and soil name | | | bulk | bility | water |extensi- | | | |bility|bility

 | | | density | (Ksat) |capacity | bility | Kw | Kf | T |group |index ___________________________________________________________________________________________________________

 | In | Pct | g/cc | In/hr | In/in | Pct | | | | |

 | | | | | | | | | | |

280C3: | | | | | | | | | | |

 Fayette-------------| 0-8 | 27-32|1.35-1.45| 0.6-2 |0.18-0.20| 3.0-5.9 | .43 | .43 | 4 | 7 | 38

 | 8-48 | 25-35|1.30-1.45| 0.6-2 |0.18-0.20| 3.0-5.9 | .37 | .37 | | |

 | 48-60 | 22-26|1.45-1.50| 0.6-2 |0.18-0.20| 3.0-5.9 | .49 | .49 | | |

 | | | | | | | | | | |

317A: | | | | | | | | | | |

 Millsdale-----------| 0-8 | 27-38|1.30-1.50| 0.6-2 |0.17-0.22| 3.0-5.9 | .20 | .20 | 4 | 7 | 38

 | 8-27 | 35-55|1.40-1.65| 0.2-0.6 |0.12-0.16| 6.0-8.9 | .32 | .32 | | |

 | 27-60 | --- | --- |0.06-0.6 | --- | --- | --- | --- | | |

 | | | | | | | | | | |

430A: | | | | | | | | | | |

 Raddle--------------| 0-21 | 18-24|1.20-1.40| 0.6-2 |0.22-0.24| 0.0-2.9 | .32 | .32 | 5 | 6 | 48

 | 21-80 | 18-24|1.20-1.40| 0.6-2 |0.20-0.22| 0.0-2.9 | .49 | .49 | | |

 | | | | | | | | | | |

430B: | | | | | | | | | | |

 Raddle--------------| 0-13 | 18-24|1.20-1.40| 0.6-2 |0.22-0.24| 0.0-2.9 | .32 | .32 | 5 | 6 | 48

 | 13-60 | 18-24|1.20-1.40| 0.6-2 |0.20-0.22| 0.0-2.9 | .49 | .49 | | |

 | | | | | | | | | | |

525A: | | | | | | | | | | |

 Joslin--------------| 0-20 | 8-16|1.20-1.40| 0.6-2 |0.13-0.18| 0.0-2.9 | .24 | .24 | 4 | 3 | 86

 | 20-34 | 15-35|1.40-1.60| 0.6-2 |0.15-0.19| 3.0-5.9 | .32 | .32 | | |

 | 34-51 | 27-35|1.40-1.60| 0.6-2 |0.15-0.19| 3.0-5.9 | .32 | .32 | | |

 | 51-58 | 27-50|1.40-1.60| 0.6-2 |0.15-0.19| 3.0-5.9 | .32 | .32 | | |

 | 58-80 | --- | --- |0.01-0.2 | --- | --- | --- | --- | | |

 | | | | | | | | | | |

567C2: | | | | | | | | | | |

 Elkhart-------------| 0-8 | 20-27|1.20-1.40| 0.6-2 |0.22-0.24| 0.0-2.9 | .28 | .28 | 5 | 6 | 48

 | 8-25 | 25-35|1.25-1.45| 0.6-2 |0.18-0.20| 3.0-5.9 | .37 | .37 | | |

 | 25-60 | 10-27|1.35-1.55| 0.6-2 |0.20-0.22| 0.0-2.9 | .49 | .49 | | |

 | | | | | | | | | | |

567D2: | | | | | | | | | | |

 Elkhart-------------| 0-10 | 20-27|1.15-1.35| 0.6-2 |0.22-0.24| 0.0-2.9 | .28 | .28 | 5 | 6 | 48

 | 10-30 | 25-35|1.25-1.45| 0.6-2 |0.18-0.20| 3.0-5.9 | .37 | .37 | | |

 | 30-60 | 10-27|1.35-1.55| 0.6-2 |0.20-0.22| 0.0-2.9 | .49 | .49 | | |

 | | | | | | | | | | |

570B: | | | | | | | | | | |

 Martinsville--------| 0-9 | 8-20|1.30-1.60| 0.6-2 |0.18-0.24| 0.0-2.9 | .32 | .32 | 5 | 5 | 56

 | 9-18 | 25-39|1.40-1.60| 0.6-2 |0.15-0.21| 3.0-5.9 | .32 | .32 | | |

 | 18-33 | 20-35|1.40-1.60| 0.6-2 |0.15-0.19| 3.0-5.9 | .32 | .32 | | |

 | 33-42 | 10-30|1.40-1.65| 0.6-2 |0.10-0.19| 0.0-2.9 | .24 | .24 | | |

 | 42-72 | 5-20|1.50-1.70| 0.6-2 |0.08-0.17| 0.0-2.9 | .24 | .24 | | |

 | | | | | | | | | | |

570C3: | | | | | | | | | | |

 Martinsville--------| 0-9 | 27-35|1.40-1.65| 0.6-2 |0.17-0.19| 3.0-5.9 | .24 | .24 | 5 | 5 | 56

 | 9-30 | 24-35|1.45-1.65| 0.6-2 |0.15-0.19| 3.0-5.9 | .32 | .32 | | |

 | 30-60 | 10-30|1.40-1.60| 0.6-2 |0.12-0.17| 0.0-2.9 | .24 | .24 | | |

 | | | | | | | | | | |

570D3: | | | | | | | | | | |

 Martinsville--------| 0-9 | 27-35|1.40-1.65| 0.6-2 |0.17-0.19| 3.0-5.9 | .24 | .24 | 5 | 5 | 56

 | 9-30 | 24-35|1.45-1.65| 0.6-2 |0.15-0.19| 3.0-5.9 | .32 | .32 | | |

 | 30-60 | 10-30|1.40-1.60| 0.6-2 |0.12-0.17| 0.0-2.9 | .24 | .24 | | |

 | | | | | | | | | | |

647A: | | | | | | | | | | |

 Lawler--------------| 0-10 | 18-27|1.40-1.45| 0.6-2 |0.20-0.22| 0.0-2.9 | .24 | .24 | 4 | 6 | 48

 | 10-31 | 20-28|1.45-1.60| 0.6-2 |0.16-0.18| 0.0-2.9 | .32 | .32 | | |

 | 31-60 | 2-8 |1.60-1.75| 20-100 |0.02-0.04| 0.0-2.9 | .02 | .05 | | |

 | | | | | | | | | | |

671A: | | | | | | | | | | |

 Biggsville----------| 0-13 | 18-27|1.10-1.20| 0.6-2 |0.22-0.24| 0.0-2.9 | .28 | .28 | 5 | 6 | 48

 | 13-53 | 18-25|1.15-1.30| 0.6-2 |0.20-0.22| 0.0-2.9 | .43 | .43 | | |

 | 53-80 | 15-27|1.20-1.40| 0.6-2 |0.20-0.22| 0.0-2.9 | .49 | .49 | | |

 | | | | | | | | | | |
364 Soil Survey of

Table 19.--Physical Properties of the Soils--Continued

___________________________________________________________________________________________________________

 | | | | | | |Erosion factors|Wind |Wind

 Map symbol | Depth | Clay | Moist | Permea- |Available| Linear |_______________|erodi-|erodi-

 and soil name | | | bulk | bility | water |extensi- | | | |bility|bility

 | | | density | (Ksat) |capacity | bility | Kw | Kf | T |group |index ___________________________________________________________________________________________________________

 | In | Pct | g/cc | In/hr | In/in | Pct | | | | |

 | | | | | | | | | | |

671B: | | | | | | | | | | |

 Biggsville----------| 0-13 | 18-27|1.10-1.20| 0.6-2 |0.22-0.24| 0.0-2.9 | .28 | .28 | 5 | 6 | 48

 | 13-53 | 18-25|1.15-1.30| 0.6-2 |0.20-0.22| 0.0-2.9 | .43 | .43 | | |

 | 53-80 | 15-27|1.20-1.40| 0.6-2 |0.20-0.22| 0.0-2.9 | .49 | .49 | | |

 | | | | | | | | | | |

675A: | | | | | | | | | | |

 Greenbush-----------| 0-9 | 15-25|1.25-1.30| 2-6 |0.21-0.23| 0.0-2.9 | .37 | .37 | 5 | 6 | 48

 | 9-16 | 15-27|1.30-1.35| 0.6-2 |0.18-0.20| 0.0-2.9 | .43 | .43 | | |

 | 16-46 | 26-35|1.30-1.35| 0.6-2 |0.18-0.20| 3.0-5.9 | .37 | .37 | | |

 | 46-60 | 18-27|1.35-1.45| 0.6-2 |0.18-0.20| 3.0-5.9 | .49 | .49 | | |

 | | | | | | | | | | |

675B: | | | | | | | | | | |

 Greenbush-----------| 0-14 | 18-25|1.25-1.30| 0.6-2 |0.21-0.23| 0.0-2.9 | .37 | .37 | 5 | 6 | 48

 | 14-60 | 26-35|1.30-1.35| 0.6-2 |0.18-0.20| 3.0-5.9 | .37 | .37 | | |

 | 60-80 | 18-27|1.35-1.45| 0.6-2 |0.18-0.20| 3.0-5.9 | .49 | .49 | | |

 | | | | | | | | | | |

689B: | | | | | | | | | | |

 Coloma--------------| 0-10 | 0-10|1.35-1.65| 6-20 |0.05-0.09| 0.0-2.9 | .02 | .02 | 5 | 1 | 250

 | 10-27 | 0-10|1.35-1.65| 6-20 |0.05-0.12| 0.0-2.9 | .15 | .15 | | |

 | 27-60 | 2-12|1.50-1.65| 2-20 |0.03-0.08| 0.0-2.9 | .15 | .15 | | |

 | | | | | | | | | | |

689D: | | | | | | | | | | |

 Coloma--------------| 0-12 | 0-10|1.35-1.65| 6-20 |0.05-0.09| 0.0-2.9 | .02 | .02 | 5 | 1 | 250

 | 12-25 | 0-10|1.35-1.65| 6-20 |0.05-0.12| 0.0-2.9 | .15 | .15 | | |

 | 25-60 | 2-12|1.50-1.65| 2-20 |0.03-0.08| 0.0-2.9 | .15 | .15 | | |

 | | | | | | | | | | |

705A: | | | | | | | | | | |

 Buckhart------------| 0-20 | 20-30|1.25-1.30| 0.6-2 |0.22-0.24| 3.0-5.9 | .28 | .28 | 5 | 6 | 48

 | 20-58 | 25-35|1.30-1.35| 0.6-2 |0.18-0.20| 3.0-5.9 | .37 | .37 | | |

 | 58-60 | 18-27|1.35-1.45| 0.6-2 |0.20-0.22| 3.0-5.9 | .49 | .49 | | |

 | | | | | | | | | | |

727A: | | | | | | | | | | |

 Waukee--------------| 0-14 | 10-24|1.40-1.45| 0.6-2 |0.20-0.22| 0.0-2.9 | .24 | .24 | 4 | 6 | 48

 | 14-34 | 18-27|1.40-1.50| 0.6-2 |0.15-0.19| 0.0-2.9 | .32 | .32 | | |

 | 34-60 | 2-8 |1.50-1.75| 6-20 |0.02-0.06| 0.0-2.9 | .02 | .05 | | |

 | | | | | | | | | | |

741F: | | | | | | | | | | |

 Oakville------------| 0-3 | 0-10|1.30-1.55| 6-20 |0.07-0.09| 0.0-2.9 | .02 | .02 | 5 | 2 | 134

 | 3-24 | 0-10|1.30-1.65| 6-20 |0.06-0.10| 0.0-2.9 | .15 | .15 | | |

 | 24-60 | 0-10|1.40-1.65| 6-20 |0.05-0.07| 0.0-2.9 | .15 | .15 | | |

 | | | | | | | | | | |

763A: | | | | | | | | | | |

 Joslin--------------| 0-15 | 12-22|1.10-1.30| 0.6-2 |0.20-0.24| 0.0-2.9 | .24 | .24 | 5 | 5 | 48

 | 15-40 | 18-27|1.15-1.35| 0.6-2 |0.17-0.22| 0.0-2.9 | .32 | .32 | | |

 | 40-60 | 35-50|1.40-1.65| 0.2-0.6 |0.08-0.19| 3.0-5.9 | .32 | .32 | | |

 | 60-85 | 18-35|1.45-1.65| 0.2-0.6 |0.17-0.22| 0.0-2.9 | .32 | .32 | | |

 | | | | | | | | | | |

763B: | | | | | | | | | | |

 Joslin--------------| 0-14 | 12-22|1.10-1.30| 0.6-2 |0.20-0.24| 0.0-2.9 | .24 | .24 | 5 | 6 | 56

 | 14-48 | 18-27|1.15-1.35| 0.6-2 |0.17-0.22| 0.0-2.9 | .32 | .32 | | |

 | 48-60 | 35-50|1.40-1.65| 0.2-0.6 |0.08-0.19| 3.0-5.9 | .32 | .32 | | |

 | 60-85 | 18-35|1.45-1.65| 0.2-0.6 |0.17-0.22| 0.0-2.9 | .32 | .32 | | |

 | | | | | | | | | | |

764A: | | | | | | | | | | |

 Coyne---------------| 0-23 | 5-18|1.45-1.60| 2-6 |0.16-0.17| 0.0-2.9 | .15 | .15 | 4 | 3 | 86

 | 23-42 | 5-18|1.40-1.60| 0.6-2 |0.15-0.19| 0.0-2.9 | .24 | .24 | | |

 | 42-60 | 18-35|1.35-1.55| 0.2-0.6 |0.15-0.20| 3.0-5.9 | .37 | .37 | | |

 | | | | | | | | | | |

764C: | | | | | | | | | | |

 Coyne---------------| 0-23 | 5-18|1.45-1.60| 2-6 |0.16-0.17| 0.0-2.9 | .15 | .15 | 5 | 3 | 86

 | 23-42 | 5-18|1.40-1.60| 0.6-2 |0.15-0.19| 0.0-2.9 | .24 | .24 | | |

 | 42-55 | 18-35|1.35-1.55| 0.2-0.6 |0.15-0.20| 3.0-5.9 | .37 | .37 | | |

 | 55-60 | 2-10|1.70-1.90| 6-20 |0.02-0.04| 0.0-2.9 | .02 | .05 | | |

 | | | | | | | | | | |
Rock Island County, Illinois 365

Table 19.--Physical Properties of the Soils--Continued

___________________________________________________________________________________________________________

 | | | | | | |Erosion factors|Wind |Wind

 Map symbol | Depth | Clay | Moist | Permea- |Available| Linear |_______________|erodi-|erodi-

 and soil name | | | bulk | bility | water |extensi- | | | |bility|bility

 | | | density | (Ksat) |capacity | bility | Kw | Kf | T |group |index ___________________________________________________________________________________________________________

 | In | Pct | g/cc | In/hr | In/in | Pct | | | | |

 | | | | | | | | | | |

774A: | | | | | | | | | | |

 Saude---------------| 0-14 | 18-24|1.40-1.45| 0.6-2 |0.20-0.22| 0.0-2.9 | .32 | .32 | 4 | 6 | 48

 | 14-29 | 12-18|1.40-1.50| 0.6-6 |0.15-0.19| 0.0-2.9 | .32 | .32 | | |

 | 29-60 | 2-8 |1.50-1.75| 20-100 |0.02-0.06| 0.0-2.9 | .02 | .05 | | |

 | | | | | | | | | | |

800C: | | | | | | | | | | |

 Psamments-----------| 0-60 | 0-10|1.50-1.70| 6-20 |0.04-0.09| 0.0-2.9 | .02 | .02 | 5 | 1 | 310

 | 60-80 | 0-10|1.50-1.70| 6-20 |0.04-0.09| 0.0-2.9 | .02 | .02 | | |

 | | | | | | | | | | |

802B: | | | | | | | | | | |

 Orthents------------| 0-6 | 22-30|1.70-1.75| 0.2-0.6 |0.18-0.22| 3.0-5.9 | .43 | .43 | 5 | 6 | 48

 | 6-60 | 22-30|1.70-1.80| 0.2-0.6 |0.16-0.20| 3.0-5.9 | .43 | .43 | | |

 | | | | | | | | | | |

864. | | | | | | | | | | |

 Pits, quarries | | | | | | | | | | |

 | | | | | | | | | | |

865. | | | | | | | | | | |

 Pits, gravel | | | | | | | | | | |

 | | | | | | | | | | |

898F3: | | | | | | | | | | |

 Hickory-------------| 0-12 | 27-35|1.40-1.65| 0.6-2 |0.17-0.19| 3.0-5.9 | .24 | .24 | 4 | 6 | 48

 | 12-48 | 27-35|1.45-1.65| 0.6-2 |0.15-0.19| 3.0-5.9 | .28 | .32 | | |

 | 48-60 | 15-32|1.50-1.70| 0.6-2 |0.11-0.19| 0.0-2.9 | .28 | .32 | | |

 | | | | | | | | | | |

 Sylvan--------------| 0-6 | 27-32|1.25-1.45| 0.6-2 |0.20-0.22| 3.0-5.9 | .43 | .43 | 4 | 7 | 38

 | 6-30 | 25-35|1.30-1.50| 0.6-2 |0.18-0.20| 3.0-5.9 | .37 | .37 | | |

 | 30-60 | 10-27|1.30-1.50| 0.6-2 |0.20-0.22| 0.0-2.9 | .49 | .49 | | |

 | | | | | | | | | | |

898G: | | | | | | | | | | |

 Hickory-------------| 0-10 | 19-25|1.30-1.50| 0.6-2 |0.20-0.22| 0.0-2.9 | .32 | .32 | 5 | 6 | 48

 | 10-35 | 27-35|1.45-1.65| 0.6-2 |0.15-0.19| 3.0-5.9 | .28 | .32 | | |

 | 35-60 | 15-32|1.50-1.70| 0.6-2 |0.11-0.19| 0.0-2.9 | .28 | .32 | | |

 | | | | | | | | | | |

 Sylvan--------------| 0-3 | 18-27|1.20-1.40| 0.6-2 |0.22-0.24| 0.0-2.9 | .43 | .43 | 5 | 6 | 48

 | 3-7 | 15-25|1.25-1.45| 0.6-2 |0.20-0.22| 0.0-2.9 | .49 | .49 | | |

 | 7-33 | 25-35|1.30-1.50| 0.6-2 |0.18-0.20| 3.0-5.9 | .37 | .37 | | |

 | 33-60 | 10-27|1.30-1.50| 0.6-2 |0.20-0.22| 0.0-2.9 | .49 | .49 | | |

 | | | | | | | | | | |

913D2: | | | | | | | | | | |

 Marseilles----------| 0-4 | 20-27|1.20-1.40| 0.6-2 |0.20-0.24| 0.0-2.9 | .32 | .32 | 4 | 6 | 48

 | 4-38 | 27-42|1.35-1.60|0.06-0.2 |0.09-0.20| 3.0-6.0 | .37 | .37 | | |

 | 38-60 | --- | --- |0.01-0.2 | --- | --- | --- | --- | | |

 | | | | | | | | | | |

 Hickory-------------| 0-6 | 19-25|1.30-1.50| 0.6-2 |0.20-0.22| 0.0-2.9 | .32 | .32 | 5 | 6 | 48

 | 6-51 | 27-35|1.45-1.65| 0.6-2 |0.15-0.19| 3.0-5.9 | .28 | .32 | | |

 | 51-60 | 15-32|1.50-1.70| 0.6-2 |0.11-0.19| 0.0-2.9 | .28 | .32 | | |

 | | | | | | | | | | |

913F: | | | | | | | | | | |

 Marseilles----------| 0-12 | 20-27|1.20-1.40| 0.6-2 |0.22-0.24| 0.0-2.9 | .32 | .32 | 3 | 6 | 48

 | 12-18 | 24-35|1.30-1.50| 0.6-2 |0.18-0.20| 3.0-5.9 | .43 | .43 | | |

 | 18-34 | 25-42|1.35-1.60|0.06-0.2 |0.09-0.20| 3.0-5.9 | .37 | .37 | | |

 | 34-60 | --- | --- |0.01-0.2 | --- | --- | --- | --- | | |

 | | | | | | | | | | |

 Hickory-------------| 0-8 | 19-25|1.30-1.50| 0.6-2 |0.20-0.22| 0.0-2.9 | .32 | .32 | 5 | 6 | 48

 | 8-57 | 27-35|1.45-1.65| 0.6-2 |0.15-0.19| 3.0-5.9 | .28 | .32 | | |

 | 57-60 | 15-32|1.50-1.70| 0.6-2 |0.11-0.19| 0.0-2.9 | .28 | .32 | | |

 | | | | | | | | | | |

913G: | | | | | | | | | | |

 Marseilles----------| 0-9 | 20-27|1.20-1.40| 0.6-2 |0.20-0.24| 0.0-2.9 | .37 | .37 | 4 | 6 | 48

 | 9-36 | 25-42|1.35-1.60|0.06-0.2 |0.09-0.20| 3.0-5.9 | .37 | .37 | | |

 | 36-60 | --- | --- |0.01-0.2 | --- | --- | --- | --- | | |

 | | | | | | | | | | |
366 Soil Survey of

Table 19.--Physical Properties of the Soils--Continued

___________________________________________________________________________________________________________

 | | | | | | |Erosion factors|Wind |Wind

 Map symbol | Depth | Clay | Moist | Permea- |Available| Linear |_______________|erodi-|erodi-

 and soil name | | | bulk | bility | water |extensi- | | | |bility|bility

 | | | density | (Ksat) |capacity | bility | Kw | Kf | T |group |index ___________________________________________________________________________________________________________

 | In | Pct | g/cc | In/hr | In/in | Pct | | | | |

 | | | | | | | | | | |

913G: | | | | | | | | | | |

 Hickory-------------| 0-12 | 19-25|1.30-1.50| 0.6-2 |0.20-0.22| 0.0-2.9 | .32 | .32 | 5 | 6 | 48

 | 12-53 | 27-35|1.45-1.65| 0.6-2 |0.15-0.19| 3.0-5.9 | .28 | .32 | | |

 | 53-60 | 15-32|1.50-1.70| 0.6-2 |0.11-0.19| 0.0-2.9 | .28 | .32 | | |

 | | | | | | | | | | |

917C2: | | | | | | | | | | |

 Oakville------------| 0-7 | 0-10|1.30-1.55| 6-20 |0.07-0.09| 0.0-2.9 | .02 | .02 | 5 | 2 | 134

 | 7-51 | 0-10|1.30-1.65| 6-20 |0.06-0.10| 0.0-2.9 | .15 | .15 | | |

 | 51-60 | 0-10|1.40-1.65| 6-20 |0.05-0.07| 0.0-2.9 | .15 | .15 | | |

 | | | | | | | | | | |

 Tell----------------| 0-7 | 14-18|1.35-1.45| 0.6-2 |0.22-0.24| 0.0-2.9 | .43 | .43 | 4 | 5 | 56

 | 7-23 | 14-28|1.50-1.60| 0.6-2 |0.18-0.22| 3.0-5.9 | .37 | .37 | | |

 | 23-27 | 10-25|1.50-1.60| 0.6-2 |0.11-0.19| 0.0-2.9 | .37 | .37 | | |

 | 27-60 | 2-12|1.55-1.70| 6-20 |0.04-0.07| 0.0-2.9 | .15 | .15 | | |

 | | | | | | | | | | |

917D2: | | | | | | | | | | |

 Oakville------------| 0-9 | 0-10|1.30-1.55| 6-20 |0.07-0.09| 0.0-2.9 | .02 | .02 | 5 | 2 | 134

 | 9-36 | 0-10|1.30-1.65| 6-20 |0.06-0.10| 0.0-2.9 | .15 | .15 | | |

 | 36-60 | 0-10|1.40-1.65| 6-20 |0.05-0.07| 0.0-2.9 | .15 | .15 | | |

 | | | | | | | | | | |

 Tell----------------| 0-8 | 14-18|1.35-1.45| 0.6-2 |0.22-0.24| 0.0-2.9 | .43 | .43 | 4 | 5 | 56

 | 8-28 | 14-28|1.50-1.60| 0.6-2 |0.18-0.22| 3.0-5.9 | .37 | .37 | | |

 | 28-32 | 10-25|1.50-1.60| 0.6-2 |0.11-0.19| 0.0-2.9 | .37 | .37 | | |

 | 32-60 | 2-12|1.55-1.70| 6-20 |0.04-0.07| 0.0-2.9 | .15 | .15 | | |

 | | | | | | | | | | |

943D2: | | | | | | | | | | |

 Seaton--------------| 0-4 | 15-22|1.10-1.20| 0.6-2 |0.22-0.24| 0.0-2.9 | .43 | .43 | 5 | 5 | 56

 | 4-39 | 18-27|1.15-1.30| 0.6-2 |0.20-0.22| 0.0-2.9 | .43 | .43 | | |

 | 39-60 | 10-25|1.20-1.50| 0.6-2 |0.20-0.22| 0.0-2.9 | .49 | .49 | | |

 | | | | | | | | | | |

 Timula--------------| 0-5 | 10-18|1.30-1.60| 0.6-2 |0.20-0.24| 0.0-2.9 | .43 | .43 | 5 | 5 | 56

 | 5-23 | 10-18|1.30-1.60| 0.6-2 |0.20-0.24| 0.0-2.9 | .43 | .43 | | |

 | 23-60 | 10-18|1.40-1.60| 0.6-2 |0.18-0.20| 0.0-2.9 | .55 | .55 | | |

 | | | | | | | | | | |

943F2: | | | | | | | | | | |

 Seaton--------------| 0-6 | 15-22|1.10-1.20| 0.6-2 |0.22-0.24| 0.0-2.9 | .43 | .43 | 5 | 5 | 56

 | 6-49 | 18-27|1.15-1.30| 0.6-2 |0.20-0.22| 0.0-2.9 | .43 | .43 | | |

 | 49-60 | 10-25|1.20-1.50| 0.6-2 |0.20-0.22| 0.0-2.9 | .49 | .49 | | |

 | | | | | | | | | | |

 Timula--------------| 0-6 | 10-18|1.30-1.60| 0.6-2 |0.20-0.24| 0.0-2.9 | .43 | .43 | 5 | 5 | 56

 | 6-28 | 10-18|1.30-1.60| 0.6-2 |0.20-0.24| 0.0-2.9 | .43 | .43 | | |

 | 28-60 | 10-18|1.40-1.60| 0.6-2 |0.18-0.20| 0.0-2.9 | .55 | .55 | | |

 | | | | | | | | | | |

944D2: | | | | | | | | | | |

 Velma---------------| 0-17 | 20-27|1.30-1.50| 0.6-2 |0.20-0.24| 0.0-2.9 | .24 | .24 | 5 | 6 | 48

 | 17-56 | 25-35|1.45-1.65| 0.6-2 |0.15-0.19| 3.0-5.9 | .32 | .32 | | |

 | 56-60 | 15-30|1.50-1.70| 0.6-2 |0.06-0.09| 0.0-2.9 | .32 | .32 | | |

 | | | | | | | | | | |

 Coatsburg-----------| 0-12 | 20-27|1.20-1.40| 0.2-0.6 |0.22-0.26| 3.0-5.9 | .24 | .24 | 3 | 6 | 48

 | 12-54 | 35-45|1.50-1.70|.001-0.06 |0.09-0.13| 6.0-8.9 | .32 | .32 | | |

 | 54-72 | 20-35|1.55-1.75|0.06-0.2 |0.15-0.19| 3.0-5.9 | .37 | .37 | | |

 | | | | | | | | | | |

946D3: | | | | | | | | | | |

 Hickory-------------| 0-7 | 27-35|1.40-1.65| 0.6-2 |0.17-0.19| 3.0-5.9 | .24 | .24 | 4 | 6 | 48

 | 7-42 | 27-35|1.45-1.65| 0.6-2 |0.15-0.19| 3.0-5.9 | .28 | .32 | | |

 | 42-60 | 15-32|1.50-1.70| 0.6-2 |0.11-0.19| 0.0-2.9 | .28 | .32 | | |

 | | | | | | | | | | |

 Atlas---------------| 0-6 | 30-40|1.35-1.55|0.06-0.2 |0.14-0.19| 6.0-8.9 | .28 | .28 | 2 | 7 | 38

 | 6-12 | 38-45|1.35-1.55|.001-0.06 |0.07-0.19| 6.0-8.9 | .37 | .37 | | |

 | 12-55 | 38-45|1.35-1.55|.001-0.06 |0.07-0.19| 6.0-8.9 | .32 | .32 | | |

 | 55-60 | 25-45|1.35-1.60|0.06-0.2 |0.07-0.18| 3.0-5.9 | .37 | .37 | | |

 | | | | | | | | | | |
Rock Island County, Illinois 367

Table 19.--Physical Properties of the Soils--Continued

___________________________________________________________________________________________________________

 | | | | | | |Erosion factors|Wind |Wind

 Map symbol | Depth | Clay | Moist | Permea- |Available| Linear |_______________|erodi-|erodi-

 and soil name | | | bulk | bility | water |extensi- | | | |bility|bility

 | | | density | (Ksat) |capacity | bility | Kw | Kf | T |group |index ___________________________________________________________________________________________________________

 | In | Pct | g/cc | In/hr | In/in | Pct | | | | |

 | | | | | | | | | | |

946F3: | | | | | | | | | | |

 Hickory-------------| 0-6 | 27-35|1.40-1.65| 0.6-2 |0.17-0.19| 3.0-5.9 | .24 | .24 | 4 | 4 | 86

 | 6-42 | 27-35|1.45-1.65| 0.6-2 |0.15-0.19| 3.0-5.9 | .28 | .32 | | |

 | 42-60 | 15-32|1.50-1.70| 0.6-2 |0.11-0.19| 0.0-2.9 | .28 | .32 | | |

 | | | | | | | | | | |

 Atlas---------------| 0-6 | 30-40|1.35-1.55|0.06-0.2 |0.14-0.19| 6.0-8.9 | .28 | .28 | 2 | 4 | 86

 | 6-12 | 38-45|1.35-1.55|.001-0.06 |0.07-0.19| 6.0-8.9 | .37 | .37 | | |

 | 12-55 | 38-45|1.35-1.55|.001-0.06 |0.07-0.19| 6.0-8.9 | .32 | .32 | | |

 | 55-60 | 25-45|1.35-1.60|0.06-0.2 |0.07-0.18| 3.0-5.9 | .37 | .37 | | |

 | | | | | | | | | | |

959G: | | | | | | | | | | |

 Strawn--------------| 0-12 | 18-27|1.15-1.45| 0.6-2 |0.20-0.24| 0.0-2.9 | .32 | .32 | 5 | 6 | 48

 | 12-23 | 25-35|1.35-1.55| 0.6-2 |0.15-0.20| 3.0-5.9 | .32 | .32 | | |

 | 23-60 | 22-30|1.50-1.70| 0.6-2 |0.08-0.12| 0.0-2.9 | .32 | .32 | | |

 | | | | | | | | | | |

 Chute---------------| 0-3 | 2-8 |1.45-1.65| 6-20 |0.09-0.11| 0.0-2.9 | .02 | .02 | 5 | 1 | 250

 | 3-13 | 2-8 |1.60-1.75| 6-20 |0.06-0.09| 0.0-2.9 | .02 | .02 | | |

 | 13-60 | 1-8 |1.60-1.75| 6-20 |0.06-0.09| 0.0-2.9 | .02 | .02 | | |

 | | | | | | | | | | |

960D2: | | | | | | | | | | |

 Hickory-------------| 0-6 | 19-25|1.30-1.50| 0.6-2 |0.20-0.22| 0.0-2.9 | .32 | .32 | 5 | 6 | 48

 | 6-51 | 27-35|1.45-1.65| 0.6-2 |0.15-0.19| 3.0-5.9 | .28 | .32 | | |

 | 51-60 | 15-32|1.50-1.70| 0.6-2 |0.11-0.19| 0.0-2.9 | .28 | .32 | | |

 | | | | | | | | | | |

 Sylvan--------------| 0-4 | 20-27|1.20-1.40| 0.6-2 |0.20-0.22| 0.0-2.9 | .43 | .43 | 5 | 6 | 48

 | 4-32 | 25-35|1.30-1.50| 0.6-2 |0.18-0.20| 3.0-5.9 | .37 | .37 | | |

 | 32-60 | 10-27|1.30-1.50| 0.6-2 |0.20-0.22| 0.0-2.9 | .49 | .49 | | |

 | | | | | | | | | | |

 Fayette-------------| 0-6 | 25-27|1.35-1.45| 0.6-2 |0.18-0.20| 3.0-5.9 | .43 | .43 | 5 | 6 | 48

 | 6-48 | 25-35|1.30-1.45| 0.6-2 |0.18-0.20| 3.0-5.9 | .37 | .37 | | |

 | 48-60 | 22-26|1.45-1.50| 0.6-2 |0.18-0.20| 3.0-5.9 | .49 | .49 | | |

 | | | | | | | | | | |

960D3: | | | | | | | | | | |

 Hickory-------------| 0-5 | 27-35|1.40-1.65| 0.6-2 |0.17-0.19| 3.0-5.9 | .24 | .24 | 4 | 4 | 86

 | 5-30 | 24-35|1.45-1.65| 0.6-2 |0.15-0.19| 3.0-5.9 | .28 | .32 | | |

 | 30-40 | 24-35|1.45-1.65| 0.6-2 |0.15-0.19| 3.0-5.9 | .28 | .32 | | |

 | 40-60 | 15-30|1.50-1.75| 0.6-2 |0.10-0.15| 0.0-2.9 | .28 | .32 | | |

 | | | | | | | | | | |

 Sylvan--------------| 0-9 | 27-32|1.25-1.45| 0.6-2 |0.20-0.22| 3.0-5.9 | .43 | .43 | 4 | 7 | 38

 | 9-28 | 25-35|1.30-1.50| 0.6-2 |0.18-0.20| 3.0-5.9 | .37 | .37 | | |

 | 28-60 | 10-27|1.30-1.50| 0.6-2 |0.20-0.22| 0.0-2.9 | .49 | .49 | | |

 | | | | | | | | | | |

 Fayette-------------| 0-8 | 27-32|1.35-1.45| 0.6-2 |0.18-0.20| 3.0-5.9 | .43 | .43 | 4 | 7 | 38

 | 8-36 | 25-35|1.30-1.45| 0.6-2 |0.18-0.20| 3.0-5.9 | .37 | .37 | | |

 | 36-60 | 22-26|1.45-1.50| 0.6-2 |0.18-0.20| 3.0-5.9 | .49 | .49 | | |

 | | | | | | | | | | |

960F: | | | | | | | | | | |

 Hickory-------------| 0-12 | 19-25|1.30-1.50| 0.6-2 |0.20-0.22| 0.0-2.9 | .32 | .32 | 5 | 6 | 48

 | 12-48 | 27-35|1.45-1.65| 0.6-2 |0.15-0.19| 3.0-5.9 | .28 | .32 | | |

 | 48-60 | 15-32|1.50-1.70| 0.6-2 |0.11-0.19| 0.0-2.9 | .28 | .32 | | |

 | | | | | | | | | | |

 Sylvan--------------| 0-6 | 18-27|1.20-1.40| 0.6-2 |0.22-0.24| 0.0-2.9 | .43 | .43 | 5 | 6 | 48

 | 6-30 | 25-35|1.30-1.50| 0.6-2 |0.18-0.20| 3.0-5.9 | .37 | .37 | | |

 | 30-60 | 18-27|1.30-1.50| 0.6-2 |0.20-0.22| 0.0-2.9 | .49 | .49 | | |

 | | | | | | | | | | |

 Fayette-------------| 0-10 | 15-27|1.30-1.35| 0.6-2 |0.20-0.22| 0.0-2.9 | .43 | .43 | 5 | 6 | 48

 | 10-60 | 25-35|1.30-1.45| 0.6-2 |0.18-0.20| 3.0-5.9 | .37 | .37 | | |

 | 60-70 | 22-26|1.45-1.50| 0.6-2 |0.18-0.20| 3.0-5.9 | .49 | .49 | | |

 | | | | | | | | | | |

961A: | | | | | | | | | | |

 Burkhardt-----------| 0-13 | 5-13|1.35-1.55| 2-6 |0.11-0.15| 0.0-2.9 | .20 | .20 | 3 | 3 | 86

 | 13-24 | 8-18|1.55-1.65| 2-6 |0.10-0.19| 0.0-2.9 | .24 | .24 | | |

 | 24-60 | 1-6 |1.50-1.80| 6-20 |0.02-0.04| 0.0-2.9 | .02 | .05 | | |

 | | | | | | | | | | |
368 Soil Survey of

Table 19.--Physical Properties of the Soils--Continued

___________________________________________________________________________________________________________

 | | | | | | |Erosion factors|Wind |Wind

 Map symbol | Depth | Clay | Moist | Permea- |Available| Linear |_______________|erodi-|erodi-

 and soil name | | | bulk | bility | water |extensi- | | | |bility|bility

 | | | density | (Ksat) |capacity | bility | Kw | Kf | T |group |index ___________________________________________________________________________________________________________

 | In | Pct | g/cc | In/hr | In/in | Pct | | | | |

 | | | | | | | | | | |

961A: | | | | | | | | | | |

 Saude---------------| 0-14 | 18-24|1.40-1.45| 0.6-2 |0.20-0.22| 0.0-2.9 | .32 | .32 | 4 | 6 | 48

 | 14-29 | 12-18|1.40-1.50| 0.6-6 |0.15-0.19| 0.0-2.9 | .32 | .32 | | |

 | 29-60 | 2-8 |1.50-1.75| 20-100 |0.02-0.06| 0.0-2.9 | .02 | .05 | | |

 | | | | | | | | | | |

962F: | | | | | | | | | | |

 Sylvan--------------| 0-6 | 18-27|1.20-1.40| 0.6-2 |0.22-0.24| 0.0-2.9 | .43 | .43 | 5 | 6 | 48

 | 6-30 | 25-35|1.30-1.50| 0.6-2 |0.18-0.20| 3.0-5.9 | .37 | .37 | | |

 | 30-60 | 18-27|1.30-1.50| 0.6-2 |0.20-0.22| 0.0-2.9 | .49 | .49 | | |

 | | | | | | | | | | |

 Bold----------------| 0-3 | 12-18|1.40-1.60| 0.6-2 |0.21-0.24| 0.0-2.9 | .43 | .43 | 5 | 4L | 86

 | 3-60 | 12-18|1.10-1.30| 0.6-2 |0.20-0.24| 0.0-2.9 | .55 | .55 | | |

 | | | | | | | | | | |

1076A: | | | | | | | | | | |

 Otter---------------| 0-31 | 18-27|1.10-1.25| 0.6-2 |0.22-0.24| 0.0-2.9 | .32 | .32 | 5 | 6 | 48

 | 31-40 | 18-27|1.20-1.45| 0.6-2 |0.17-0.22| 3.0-5.9 | .49 | .49 | | |

 | 40-64 | 15-28|1.30-1.55| 0.6-2 |0.15-0.20| 0.0-2.9 | .49 | .49 | | |

 | | | | | | | | | | |

1082A: | | | | | | | | | | |

 Millington----------| 0-19 | 20-27|1.40-1.60| 0.6-2 |0.20-0.24| 0.0-2.9 | .32 | .32 | 5 | 4L | 86

 | 19-35 | 18-35|1.40-1.60| 0.6-2 |0.17-0.20| 3.0-5.9 | .32 | .32 | | |

 | 35-60 | 15-35|1.50-1.70| 0.6-2 |0.14-0.20| 3.0-5.9 | .32 | .32 | | |

 | | | | | | | | | | |

1107A: | | | | | | | | | | |

 Sawmill-------------| 0-29 | 27-35|1.20-1.40| 0.6-2 |0.21-0.23| 3.0-5.9 | .28 | .28 | 5 | 7 | 38

 | 29-38 | 27-35|1.20-1.40| 0.6-2 |0.21-0.23| 3.0-5.9 | .32 | .32 | | |

 | 38-60 | 25-35|1.30-1.45| 0.6-2 |0.17-0.20| 3.0-5.9 | .32 | .32 | | |

 | | | | | | | | | | |

1334A: | | | | | | | | | | |

 Birds---------------| 0-9 | 15-27|1.35-1.45| 0.6-2 |0.22-0.24| 0.0-2.9 | .37 | .37 | 5 | 6 | 48

 | 9-37 | 18-30|1.35-1.45| 0.6-2 |0.20-0.24| 3.0-5.9 | .43 | .43 | | |

 | 37-60 | 15-27|1.35-1.45| 0.6-2 |0.12-0.20| 0.0-2.9 | .49 | .49 | | |

 | | | | | | | | | | |

1400A: | | | | | | | | | | |

 Calco---------------| 0-37 | 28-42|1.25-1.30| 0.6-2 |0.21-0.23| 3.0-5.9 | .28 | .28 | 5 | 4L | 86

 | 37-49 | 30-35|1.25-1.30| 0.6-2 |0.21-0.23| 3.0-5.9 | .32 | .32 | | |

 | 49-60 | 18-27|1.30-1.45| 0.6-2 |0.18-0.20| 3.0-5.9 | .32 | .32 | | |

 | | | | | | | | | | |

1654A: | | | | | | | | | | |

 Moline--------------| 0-14 | 35-55|1.35-1.55| 0.2-0.6 |0.11-0.14| 9.0-25.0| .24 | .24 | 5 | 4 | 86

 | 14-33 | 45-60|1.45-1.65|0.06-0.2 |0.09-0.11| 9.0-25.0| .28 | .28 | | |

 | 33-75 | 35-60|1.40-1.65|0.06-0.2 |0.09-0.11| 9.0-25.0| .28 | .28 | | |

 | 75-98 | 18-35|1.50-1.60|0.06-0.2 |0.18-0.22| 0.0-5.9 | .49 | .49 | | |

 | | | | | | | | | | |

3074A: | | | | | | | | | | |

 Radford-------------| 0-12 | 18-27|1.40-1.60| 0.6-2 |0.22-0.24| 0.0-2.9 | .32 | .32 | 5 | 6 | 48

 | 12-33 | 18-27|1.40-1.60| 0.6-2 |0.20-0.22| 0.0-2.9 | .49 | .49 | | |

 | 33-60 | 24-35|1.35-1.55| 0.6-2 |0.18-0.20| 3.0-5.9 | .32 | .32 | | |

 | | | | | | | | | | |

3076A: | | | | | | | | | | |

 Otter---------------| 0-43 | 18-27|1.10-1.25| 0.6-2 |0.22-0.24| 0.0-2.9 | .32 | .32 | 5 | 6 | 48

 | 43-50 | 18-27|1.20-1.45| 0.6-2 |0.17-0.22| 3.0-5.9 | .49 | .49 | | |

 | 50-60 | 15-28|1.30-1.55| 0.6-2 |0.15-0.20| 0.0-2.9 | .49 | .49 | | |

 | | | | | | | | | | |

3082A: | | | | | | | | | | |

 Millington----------| 0-19 | 20-27|1.40-1.60| 0.6-2 |0.20-0.24| 0.0-2.9 | .32 | .32 | 5 | 4L | 86

 | 19-35 | 18-35|1.40-1.60| 0.6-2 |0.17-0.20| 3.0-5.9 | .32 | .32 | | |

 | 35-60 | 15-35|1.50-1.70| 0.6-2 |0.14-0.20| 3.0-5.9 | .32 | .32 | | |

 | | | | | | | | | | |

3083A: | | | | | | | | | | |

 Wabash--------------| 0-15 | 40-46|1.25-1.45|.001-0.06 |0.12-0.14| 9.0-25.0| .24 | .24 | 5 | 4 | 86

 | 15-60 | 40-60|1.20-1.45|.001-0.06 |0.08-0.12| 9.0-25.0| .28 | .28 | | |

 | | | | | | | | | | |
Rock Island County, Illinois 369

Table 19.--Physical Properties of the Soils--Continued

___________________________________________________________________________________________________________

 | | | | | | |Erosion factors|Wind |Wind

 Map symbol | Depth | Clay | Moist | Permea- |Available| Linear |_______________|erodi-|erodi-

 and soil name | | | bulk | bility | water |extensi- | | | |bility|bility

 | | | density | (Ksat) |capacity | bility | Kw | Kf | T |group |index ___________________________________________________________________________________________________________

 | In | Pct | g/cc | In/hr | In/in | Pct | | | | |

 | | | | | | | | | | |

3107A: | | | | | | | | | | |

 Sawmill-------------| 0-26 | 27-35|1.20-1.40| 0.6-2 |0.21-0.23| 3.0-5.9 | .28 | .28 | 5 | 7 | 38

 | 26-54 | 27-35|1.20-1.40| 0.6-2 |0.21-0.23| 3.0-5.9 | .32 | .32 | | |

 | 54-60 | 25-35|1.30-1.45| 0.6-2 |0.17-0.20| 3.0-5.9 | .32 | .32 | | |

 | | | | | | | | | | |

3239A: | | | | | | | | | | |

 Dorchester----------| 0-9 | 11-30|1.20-1.30| 0.6-2 |0.20-0.22| 0.0-2.9 | .37 | .37 | 5 | 4L | 86

 | 9-32 | 18-24|1.20-1.30| 0.6-2 |0.20-0.22| 0.0-2.9 | .49 | .49 | | |

 | 32-60 | 18-30|1.25-1.40| 0.6-2 |0.22-0.24| 3.0-5.9 | .49 | .49 | | |

 | | | | | | | | | | |

3400A: | | | | | | | | | | |

 Calco---------------| 0-34 | 28-42|1.25-1.30| 0.6-2 |0.21-0.23| 3.0-5.9 | .28 | .28 | 5 | 4L | 86

 | 34-45 | 30-35|1.25-1.30| 0.6-2 |0.21-0.23| 3.0-5.9 | .32 | .32 | | |

 | 45-60 | 18-27|1.30-1.45| 0.6-2 |0.18-0.20| 3.0-5.9 | .32 | .32 | | |

 | | | | | | | | | | |

3415A: | | | | | | | | | | |

 Orion---------------| 0-7 | 10-18|1.20-1.30| 0.6-2 |0.22-0.24| 0.0-2.9 | .43 | .43 | 5 | 5 | 56

 | 7-22 | 10-18|1.20-1.30| 0.6-2 |0.20-0.22| 0.0-2.9 | .28 | .28 | | |

 | 22-60 | 10-30|1.25-1.45| 0.6-2 |0.18-0.22| 0.0-2.9 | .32 | .32 | | |

 | 60-80 | 10-18|1.20-1.40| 0.6-2 |0.18-0.22| 0.0-2.9 | .28 | .28 | | |

 | | | | | | | | | | |

3428A: | | | | | | | | | | |

 Coffeen-------------| 0-17 | 15-27|1.35-1.55| 0.6-2 |0.22-0.25| 0.0-2.9 | .32 | .32 | 5 | 6 | 48

 | 17-33 | 10-18|1.40-1.60| 0.6-2 |0.20-0.22| 0.0-2.9 | .49 | .49 | | |

 | 33-60 | 5-15|1.50-1.70| 0.6-6 |0.11-0.19| 0.0-2.9 | .32 | .32 | | |

 | | | | | | | | | | |

3451A: | | | | | | | | | | |

 Lawson--------------| 0-14 | 10-27|1.20-1.55| 0.6-2 |0.22-0.24| 0.0-2.9 | .32 | .32 | 5 | 5 | 56

 | 14-33 | 10-30|1.20-1.55| 0.6-2 |0.18-0.22| 0.0-2.9 | .32 | .32 | | |

 | 33-80 | 18-30|1.55-1.65| 0.6-2 |0.18-0.20| 3.0-5.9 | .49 | .49 | | |

 | | | | | | | | | | |

3646L: | | | | | | | | | | |

 Fluvaquents---------| 0-9 | 15-27|1.35-1.45| 0.6-2 |0.22-0.24| 0.0-2.9 | .32 | .32 | 5 | 6 | 48

 | 9-37 | 18-30|1.35-1.45| 0.6-2 |0.20-0.24| 3.0-5.9 | .49 | .49 | | |

 | 37-60 | 15-27|1.35-1.45| 0.6-2 |0.12-0.20| 0.0-2.9 | .49 | .49 | | |

 | | | | | | | | | | |

7076A: | | | | | | | | | | |

 Otter---------------| 0-38 | 18-27|1.10-1.25| 0.6-2 |0.22-0.24| 0.0-2.9 | .32 | .32 | 5 | 6 | 48

 | 38-50 | 18-27|1.20-1.45| 0.6-2 |0.17-0.22| 3.0-5.9 | .49 | .49 | | |

 | 50-60 | 15-28|1.30-1.55| 0.6-2 |0.15-0.20| 0.0-2.9 | .49 | .49 | | |

 | | | | | | | | | | |

7083A: | | | | | | | | | | |

 Wabash--------------| 0-15 | 40-46|1.25-1.45|.001-0.06 |0.12-0.14| 9.0-25.0| .24 | .24 | 5 | 4 | 86

 | 15-60 | 40-60|1.20-1.45|.001-0.06 |0.08-0.12| 9.0-25.0| .28 | .28 | | |

 | | | | | | | | | | |

7107A: | | | | | | | | | | |

 Sawmill-------------| 0-10 | 27-35|1.20-1.40| 0.6-2 |0.21-0.23| 3.0-5.9 | .28 | .28 | 5 | 7 | 38

 | 10-35 | 27-35|1.20-1.40| 0.6-2 |0.17-0.20| 3.0-5.9 | .32 | .32 | | |

 | 35-60 | 20-35|1.35-1.50| 0.6-2 |0.15-0.19| 3.0-5.9 | .32 | .32 | | |

 | | | | | | | | | | |

7239A: | | | | | | | | | | |

 Dorchester----------| 0-9 | 11-30|1.20-1.30| 0.6-2 |0.20-0.22| 0.0-2.9 | .37 | .37 | 5 | 4L | 86

 | 9-32 | 18-24|1.20-1.30| 0.6-2 |0.20-0.22| 0.0-2.9 | .49 | .49 | | |

 | 32-60 | 18-30|1.25-1.40| 0.6-2 |0.22-0.24| 3.0-5.9 | .49 | .49 | | |

 | | | | | | | | | | |

7304A: | | | | | | | | | | |

 Landes--------------| 0-19 | 7-20|1.40-1.60| 2-6 |0.13-0.20| 0.0-2.9 | .20 | .20 | 4 | 3 | 86

 | 19-32 | 5-18|1.60-1.70| 2-6 |0.10-0.15| 0.0-2.9 | .24 | .24 | | |

 | 32-60 | 5-18|1.60-1.80| 6-20 |0.05-0.15| 0.0-2.9 | .02 | .02 | | |

 | | | | | | | | | | |
370 Soil Survey of

Table 19.--Physical Properties of the Soils--Continued

___________________________________________________________________________________________________________

 | | | | | | |Erosion factors|Wind |Wind

 Map symbol | Depth | Clay | Moist | Permea- |Available| Linear |_______________|erodi-|erodi-

 and soil name | | | bulk | bility | water |extensi- | | | |bility|bility

 | | | density | (Ksat) |capacity | bility | Kw | Kf | T |group |index ___________________________________________________________________________________________________________

 | In | Pct | g/cc | In/hr | In/in | Pct | | | | |

 | | | | | | | | | | |

7415A: | | | | | | | | | | |

 Orion---------------| 0-21 | 10-18|1.20-1.30| 0.6-2 |0.22-0.24| 0.0-2.9 | .43 | .43 | 5 | 5 | 56

 | 21-27 | 4-18|1.20-1.30| 0.6-2 |0.20-0.22| 0.0-2.9 | .28 | .28 | | |

 | 27-45 | 10-30|1.25-1.45| 0.6-2 |0.18-0.22| 0.0-2.9 | .32 | .32 | | |

 | 45-60 | 4-18|1.20-1.40| 0.6-2 |0.18-0.22| 0.0-2.9 | .28 | .28 | | |

 | | | | | | | | | | |

7428A: | | | | | | | | | | |

 Coffeen-------------| 0-20 | 15-27|1.35-1.55| 0.6-2 |0.22-0.25| 0.0-2.9 | .32 | .32 | 5 | 6 | 48

 | 20-32 | 10-18|1.40-1.60| 0.6-2 |0.20-0.22| 0.0-2.9 | .49 | .49 | | |

 | 32-60 | 5-15|1.50-1.70| 0.6-6 |0.11-0.19| 0.0-2.9 | .32 | .32 | | |

 | | | | | | | | | | |

7451A: | | | | | | | | | | |

 Lawson--------------| 0-14 | 10-27|1.20-1.55| 0.6-2 |0.22-0.24| 0.0-2.9 | .32 | .32 | 5 | 5 | 56

 | 14-33 | 10-30|1.20-1.55| 0.6-2 |0.18-0.22| 0.0-2.9 | .49 | .49 | | |

 | 33-80 | 18-30|1.55-1.65| 0.6-2 |0.18-0.20| 3.0-5.9 | .49 | .49 | | |

 | | | | | | | | | | |

7654A: | | | | | | | | | | |

 Moline--------------| 0-14 | 35-55|1.35-1.55| 0.2-0.6 |0.11-0.14| 9.0-25.0| .28 | .28 | 5 | 4 | 86

 | 14-33 | 45-60|1.45-1.65|0.06-0.2 |0.09-0.11| 9.0-25.0| .37 | .37 | | |

 | 33-75 | 35-60|1.40-1.65|0.06-0.2 |0.09-0.11| 9.0-25.0| .37 | .37 | | |

 | 75-98 | 18-35|1.50-1.60|0.06-0.2 |0.18-0.22| 0.0-5.9 | .37 | .37 | | |

 | | | | | | | | | | |

8107+: | | | | | | | | | | |

 Sawmill-------------| 0-8 | 18-27|1.25-1.40| 0.6-2 |0.22-0.24| 0.0-2.9 | .32 | .32 | 5 | 6 | 48

 | 8-14 | 27-35|1.20-1.40| 0.6-2 |0.21-0.23| 3.0-5.9 | .28 | .28 | | |

 | 14-46 | 27-35|1.20-1.40| 0.6-2 |0.21-0.23| 3.0-5.9 | .32 | .32 | | |

 | 46-60 | 25-35|1.30-1.45| 0.6-2 |0.17-0.20| 3.0-5.9 | .32 | .32 | | |

 | | | | | | | | | | |

8302A: | | | | | | | | | | |

 Ambraw--------------| 0-9 | 18-27|1.30-1.55| 0.6-2 |0.15-0.22| 3.0-5.9 | .32 | .32 | 5 | 6 | 48

 | 9-32 | 25-42|1.30-1.55| 0.2-0.6 |0.08-0.19| 3.0-5.9 | .28 | .28 | | |

 | 32-38 | 24-35|1.40-1.65| 0.2-2 |0.10-0.15| 3.0-5.9 | .28 | .28 | | |

 | 38-60 | 18-30|1.35-1.65| 0.2-2 |0.11-0.22| 0.0-2.9 | .28 | .28 | | |

 | | | | | | | | | | |

8400A: | | | | | | | | | | |

 Calco---------------| 0-34 | 28-42|1.25-1.30| 0.6-2 |0.21-0.23| 3.0-5.9 | .28 | .28 | 5 | 4L | 86

 | 34-45 | 30-35|1.25-1.30| 0.6-2 |0.21-0.23| 3.0-5.9 | .32 | .32 | | |

 | 45-60 | 18-27|1.30-1.45| 0.6-2 |0.18-0.20| 3.0-5.9 | .32 | .32 | | |

 | | | | | | | | | | |

8404A: | | | | | | | | | | |

 Titus---------------| 0-13 | 35-40|1.30-1.50|0.06-0.2 |0.18-0.22| 6.0-8.9 | .28 | .28 | 5 | 4 | 86

 | 13-68 | 35-45|1.30-1.60|0.06-0.2 |0.11-0.22| 6.0-8.9 | .32 | .32 | | |

 | 68-80 | 20-30|1.45-1.75| 0.2-0.6 |0.10-0.20| 3.0-5.9 | .32 | .32 | | |

 | | | | | | | | | | | ___________________________________________________________________________________________________________
Rock Island County, Illinois 371

Table 20.--Chemical Properties of the Soils

(Absence of an entry indicates that data were not estimated)

________________________________________________________________

 | | | | |

 Map symbol | Depth | Soil | Organic |Cation- |Calcium

 and soil name | |reaction | matter |exchange|carbonate

 | | | |capacity| ________________________________________________________________

 | In | pH | Pct |meq/100g| Pct

 | | | | |

8D2: | | | | |

 Hickory---------| 0-6 | 4.5-7.3 | 1.0-2.0 | 14-19 | 0

 | 6-51 | 4.5-7.3 | 0.0-0.5 | 16-22 | 0

 | 51-60 | 5.1-8.4 | 0.0-0.2 | 9-19 | 0-25

 | | | | |

8D3: | | | | |

 Hickory---------| 0-5 | 4.5-7.3 | 0.5-1.0 | 17-23 | 0

 | 5-30 | 4.5-7.3 | 0.0-0.5 | 16-22 | 0

 | 30-40 | 4.5-7.8 | 0.0-0.5 | 16-22 | 0

 | 40-60 | 5.6-8.4 | 0.0-0.5 | 5-15 | 0-25

 | | | | |

8F: | | | | |

 Hickory---------| 0-12 | 4.5-7.3 | 1.0-3.0 | 14-19 | 0

 | 12-53 | 4.5-7.3 | 0.0-0.5 | 16-22 | 0

 | 53-58 | 5.1-7.8 | 0.0-0.5 | 9-19 | 0-15

 | 58-63 | 5.6-8.4 | 0.0-0.5 | 5-15 | 0-25

 | | | | |

8F3: | | | | |

 Hickory---------| 0-6 | 4.5-7.3 | 0.5-1.0 | 17-23 | 0

 | 6-42 | 4.5-7.3 | 0.0-0.5 | 16-22 | 0

 | 42-60 | 5.1-7.8 | 0.0-0.2 | 9-19 | 0-15

 | | | | |

19C3: | | | | |

 Sylvan----------| 0-7 | 5.6-7.3 | 0.5-1.0 | 17-21 | 0

 | 7-37 | 5.6-7.3 | 0.0-0.5 | 15-22 | 0

 | 37-60 | 6.6-8.4 | 0.0-0.5 | 6-18 | 0-35

 | | | | |

19D: | | | | |

 Sylvan----------| 0-5 | 5.6-7.3 | 1.0-3.0 | 13-20 | 0

 | 5-10 | 5.6-7.3 | 0.2-1.0 | 9-17 | 0

 | 10-35 | 5.6-7.3 | 0.0-0.5 | 15-22 | 0

 | 35-60 | 6.6-8.4 | 0.0-0.5 | 11-17 | 0-35

 | | | | |

19D3: | | | | |

 Sylvan----------| 0-9 | 5.6-7.3 | 0.5-1.0 | 17-21 | 0

 | 9-28 | 5.6-7.3 | 0.0-0.5 | 15-22 | 0

 | 28-60 | 6.6-8.4 | 0.0-0.5 | 6-18 | 0-35

 | | | | |

19F: | | | | |

 Sylvan----------| 0-5 | 5.6-7.3 | 1.0-3.0 | 13-20 | 0

 | 5-10 | 5.6-7.3 | 0.2-1.0 | 9-17 | 0

 | 10-27 | 5.6-7.3 | 0.2-0.5 | 15-22 | 0

 | 27-80 | 6.6-8.4 | 0.2-0.5 | 11-17 | 0-35

 | | | | |

19F3: | | | | |

 Sylvan----------| 0-6 | 5.6-7.3 | 0.5-1.0 | 17-21 | 0

 | 6-30 | 5.6-7.3 | 0.0-0.5 | 15-22 | 0

 | 30-60 | 6.6-8.4 | 0.0-0.5 | 6-18 | 0-35

 | | | | |

45A: | | | | |

 Denny-----------| 0-9 | 5.6-7.3 | 3.0-4.0 | 18-24 | 0

 | 9-22 | 5.6-6.5 | 0.0-0.5 | 9-15 | 0

 | 22-45 | 5.6-6.5 | 0.0-1.0 | 21-29 | 0

 | 45-60 | 5.6-7.8 | 0.0-0.2 | 15-21 | 0

 | | | | |

51A: | | | | |

 Muscatune-------| 0-16 | 6.1-7.3 | 3.5-5.0 | 16-32 | 0

 | 16-22 | 5.6-7.3 | 0.5-1.5 | 16-27 | 0

 | 22-46 | 5.6-7.3 | 0.5-1.5 | 17-31 | 0

 | 46-60 | 6.6-7.8 | 0.0-0.2 | 9-22 | 0-15

 | | | | |
372 Soil Survey of

Table 20.--Chemical Properties of the Soils--Continued

________________________________________________________________

 | | | | |

 Map symbol | Depth | Soil | Organic |Cation- |Calcium

 and soil name | |reaction | matter |exchange|carbonate

 | | | |capacity| ________________________________________________________________

 | In | pH | Pct |meq/100g| Pct

 | | | | |

61A: | | | | |

 Atterberry------| 0-9 | 6.1-7.3 | 1.5-3.5 | 11-28 | 0

 | 9-17 | 5.6-6.5 | 0.1-1.0 | 9-24 | 0

 | 17-48 | 5.1-6.0 | 0.1-0.5 | 16-29 | 0

 | 48-60 | 5.6-7.3 | 0.1-0.5 | 9-23 | 0-8

 | | | | |

68A: | | | | |

 Sable-----------| 0-17 | 5.6-7.3 | 5.0-6.0 | 26-33 | 0

 | 17-23 | 5.6-7.3 | 2.0-4.0 | 20-30 | 0

 | 23-60 | 5.6-7.8 | 0.2-1.0 | 15-23 | 0

 | | | | |

86B: | | | | |

 Osco------------| 0-14 | 5.1-7.3 | 3.0-4.0 | 18-25 | 0

 | 14-55 | 5.1-7.3 | 0.0-1.0 | 15-23 | 0

 | 55-60 | 5.6-7.3 | 0.0-0.5 | 12-18 | 0-15

 | | | | |

86C2: | | | | |

 Osco------------| 0-9 | 5.1-7.3 | 2.0-3.0 | 18-25 | 0

 | 9-34 | 5.1-7.3 | 0.0-1.0 | 15-23 | 0

 | 34-60 | 5.6-7.3 | 0.0-0.5 | 12-18 | 0-15

 | | | | |

87A: | | | | |

 Dickinson-------| 0-8 | 5.6-7.3 | 1.0-2.0 | 15-20 | 0

 | 8-20 | 5.6-7.3 | 0.5-1.5 | 7-17 | 0

 | 20-31 | 5.1-6.5 | 0.5-1.0 | 9-17 | 0

 | 31-36 | 5.1-6.5 | 0.0-0.5 | 0-10 | 0

 | 36-60 | 5.6-6.5 | 0.0-0.5 | 0-10 | 0

 | | | | |

87C2: | | | | |

 Dickinson-------| 0-11 | 5.6-7.3 | 1.0-2.0 | 15-20 | 0

 | 11-29 | 5.1-6.5 | 0.5-1.0 | 15-20 | 0

 | 29-35 | 5.1-6.5 | 0.0-0.5 | 5-10 | 0

 | 35-60 | 5.6-6.5 | 0.0-0.5 | 5-10 | 0

 | | | | |

88A: | | | | |

 Sparta----------| 0-17 | 5.1-7.3 | 1.0-2.0 | 2-12 | 0

 | 17-31 | 5.1-7.3 | 0.1-1.0 | 1-6 | 0

 | 31-72 | 5.1-6.0 | 0.0-0.5 | 1-9 | 0

 | | | | |

172A: | | | | |

 Hoopeston-------| 0-14 | 5.1-7.3 | 2.0-3.0 | 9-17 | 0

 | 14-38 | 5.1-7.8 | 0.2-1.0 | 7-13 | 0-5

 | 38-60 | 4.5-8.4 | 0.1-0.5 | 1-7 | 0-20

 | | | | |

212B: | | | | |

 Thebes----------| 0-9 | 5.1-7.3 | 2.0-3.0 | 15-20 | 0

 | 9-31 | 4.5-6.0 | 0.0-1.0 | 15-20 | 0

 | 31-40 | 5.1-6.5 | 0.0-0.5 | 15-20 | 0

 | 40-80 | 5.1-7.3 | 0.0-0.5 | 5-10 | 0

 | | | | |

250D: | | | | |

 Velma-----------| 0-16 | 5.1-7.3 | 3.0-4.0 | 18-24 | 0

 | 16-54 | 4.5-7.3 | 0.2-1.0 | 15-23 | 0

 | 54-80 | 7.4-8.4 | 0.2-0.5 | 12-19 | 5-30

 | | | | |

261A: | | | | |

 Niota-----------| 0-9 | 5.1-7.3 | 1.0-3.0 | 14-22 | 0

 | 9-16 | 5.1-6.0 | 0.0-0.5 | 11-16 | 0

 | 16-27 | 3.6-6.0 | 0.0-1.0 | 21-35 | 0

 | 27-36 | 4.5-6.0 | 0.0-0.5 | 15-25 | 0

 | 36-49 | 5.6-7.3 | 0.0-0.5 | 7-15 | 0

 | 49-60 | 5.6-8.4 | 0.1-0.5 | 6-13 | 0-20

 | | | | |
Rock Island County, Illinois 373

Table 20.--Chemical Properties of the Soils--Continued

________________________________________________________________

 | | | | |

 Map symbol | Depth | Soil | Organic |Cation- |Calcium

 and soil name | |reaction | matter |exchange|carbonate

 | | | |capacity| ________________________________________________________________

 | In | pH | Pct |meq/100g| Pct

 | | | | |

274B: | | | | |

 Seaton----------| 0-9 | 5.6-7.3 | 1.0-3.0 | 8-19 | 0

 | 9-60 | 4.5-7.3 | 0.5-1.0 | 11-16 | 0

 | 60-80 | 5.6-8.4 | 0.2-0.5 | 6-15 | 0-35

 | | | | |

274B2: | | | | |

 Seaton----------| 0-9 | 5.6-7.3 | 1.0-3.0 | 8-19 | 0

 | 9-53 | 4.5-7.3 | 0.5-1.0 | 11-16 | 0

 | 53-60 | 5.6-8.4 | 0.2-0.5 | 6-15 | 0-35

 | | | | |

274C2: | | | | |

 Seaton----------| 0-7 | 5.6-7.3 | 0.5-2.0 | 10-17 | 0

 | 7-47 | 4.5-7.3 | 0.5-1.0 | 11-16 | 0

 | 47-60 | 5.6-8.4 | 0.2-0.5 | 6-15 | 0-35

 | | | | |

274D2: | | | | |

 Seaton----------| 0-8 | 5.6-7.3 | 0.5-2.0 | 10-17 | 0

 | 8-52 | 4.5-7.3 | 0.5-1.0 | 11-16 | 0

 | 52-60 | 5.6-8.4 | 0.2-0.5 | 6-15 | 0-35

 | | | | |

275A: | | | | |

 Joy-------------| 0-15 | 5.6-7.3 | 2.0-4.0 | 13-23 | 0

 | 15-51 | 5.1-7.3 | 0.1-1.0 | 11-28 | 0

 | 51-60 | 6.1-8.4 | 0.0-0.2 | 7-14 | 0-30

 | | | | |

278A: | | | | |

 Stronghurst-----| 0-8 | 5.1-7.3 | 1.0-3.0 | 14-22 | 0

 | 8-47 | 5.1-7.3 | 0.5-1.0 | 17-23 | 0

 | 47-60 | 5.6-7.8 | 0.2-0.5 | 12-17 | 0-15

 | | | | |

279A: | | | | |

 Rozetta---------| 0-4 | 5.1-7.3 | 1.0-3.0 | 10-22 | 0

 | 4-11 | 4.5-7.3 | 0.2-0.5 | 7-17 | 0

 | 11-50 | 4.5-6.0 | 0.2-0.5 | 16-22 | 0

 | 50-60 | 5.6-7.8 | 0.2-0.5 | 12-17 | 0-15

 | | | | |

279B: | | | | |

 Rozetta---------| 0-7 | 5.1-7.3 | 1.0-3.0 | 10-22 | 0

 | 7-11 | 4.5-7.3 | 0.1-1.0 | 7-17 | 0

 | 11-55 | 4.5-6.0 | 0.0-0.5 | 16-22 | 0

 | 55-60 | 5.6-7.8 | 0.0-0.5 | 12-17 | 0-15

 | | | | |

280B: | | | | |

 Fayette---------| 0-9 | 5.1-7.3 | 1.0-3.0 | 15-20 | 0

 | 9-39 | 4.5-6.5 | 0.0-1.0 | 15-20 | 0

 | 39-60 | 5.1-7.8 | 0.0-0.5 | 15-20 | 0-15

 | | | | |

280B2: | | | | |

 Fayette---------| 0-8 | 5.1-7.3 | 1.0-2.0 | 18-25 | 0

 | 8-56 | 4.5-6.0 | 0.0-0.5 | 15-20 | 0

 | 56-80 | 5.1-7.8 | 0.0-0.5 | 15-20 | 0-15

 | | | | |

280C2: | | | | |

 Fayette---------| 0-8 | 5.1-7.3 | 1.0-2.0 | 18-25 | 0

 | 8-64 | 4.5-6.0 | 0.0-0.5 | 15-20 | 0

 | 64-80 | 5.1-7.8 | 0.0-0.5 | 15-20 | 0-15

 | | | | |

280C3: | | | | |

 Fayette---------| 0-8 | 5.1-7.3 | 0.5-2.0 | 25-30 | 0

 | 8-48 | 4.5-6.0 | 0.0-0.5 | 15-20 | 0

 | 48-60 | 5.1-7.8 | 0.0-0.5 | 15-20 | 0-15

 | | | | |
374 Soil Survey of

Table 20.--Chemical Properties of the Soils--Continued

________________________________________________________________

 | | | | |

 Map symbol | Depth | Soil | Organic |Cation- |Calcium

 and soil name | |reaction | matter |exchange|carbonate

 | | | |capacity| ________________________________________________________________

 | In | pH | Pct |meq/100g| Pct

 | | | | |

317A: | | | | |

 Millsdale-------| 0-8 | 6.1-7.3 | 4.0-7.0 | 21-32 | 0

 | 8-27 | 6.1-8.4 | 1.0-3.0 | 17-28 | 0-15

 | 27-60 | --- | --- | --- | ---

 | | | | |

430A: | | | | |

 Raddle----------| 0-21 | 5.6-7.3 | 2.0-4.0 | 12-18 | 0

 | 21-80 | 5.6-7.3 | 1.0-3.0 | 12-18 | 0

 | | | | |

430B: | | | | |

 Raddle----------| 0-13 | 5.6-7.3 | 2.0-4.0 | 12-18 | 0

 | 13-60 | 5.6-7.3 | 1.0-3.0 | 12-18 | 0

 | | | | |

525A: | | | | |

 Joslin----------| 0-20 | 5.6-7.8 | 2.0-3.0 | 9-25 | 0

 | 20-34 | 5.6-7.3 | 0.5-1.0 | 12-25 | 0

 | 34-51 | 5.6-7.3 | 0.0-0.4 | 16-22 | 0

 | 51-58 | 5.6-8.4 | 0.0-0.4 | 16-22 | 0-25

 | 58-80 | --- | --- | --- | ---

 | | | | |

567C2: | | | | |

 Elkhart---------| 0-8 | 5.6-7.8 | 1.0-3.0 | 18-27 | 0

 | 8-25 | 5.6-8.4 | 0.0-0.5 | 15-22 | 0-20

 | 25-60 | 7.4-8.4 | 0.0-0.1 | 12-21 | 10-40

 | | | | |

567D2: | | | | |

 Elkhart---------| 0-10 | 5.6-7.8 | 2.0-3.0 | 16-24 | 0

 | 10-30 | 5.6-8.4 | 0.0-0.5 | 15-22 | 0-20

 | 30-60 | 7.4-8.4 | 0.0-0.1 | 12-21 | 10-40

 | | | | |

570B: | | | | |

 Martinsville----| 0-9 | 5.1-7.3 | 1.0-3.0 | 5-16 | 0

 | 9-18 | 5.1-7.3 | 0.0-1.0 | 6-17 | 0

 | 18-33 | 5.1-7.3 | 0.0-0.5 | 8-17 | 0

 | 33-42 | 5.6-7.8 | 0.0-0.5 | 2-12 | 0-10

 | 42-72 | 7.4-8.4 | 0.0-0.5 | 1-10 | 10-40

 | | | | |

570C3: | | | | |

 Martinsville----| 0-9 | 4.5-7.3 | 0.5-1.0 | 17-23 | 0

 | 9-30 | 4.5-7.3 | 0.0-0.5 | 16-22 | 0

 | 30-60 | 5.1-6.5 | 0.0-0.2 | 6-15 | 0

 | | | | |

570D3: | | | | |

 Martinsville----| 0-9 | 4.5-7.3 | 0.5-1.0 | 17-23 | 0

 | 9-30 | 4.5-7.3 | 0.0-0.5 | 16-22 | 0

 | 30-60 | 5.1-6.5 | 0.0-0.2 | 6-15 | 0

 | | | | |

647A: | | | | |

 Lawler----------| 0-10 | 5.6-7.3 | 4.0-5.0 | 20-25 | 0

 | 10-31 | 5.1-6.5 | 1.0-2.0 | 15-20 | 0

 | 31-60 | 5.1-7.3 | 0.0-0.5 | 5-10 | 0

 | | | | |

671A: | | | | |

 Biggsville------| 0-13 | 5.1-8.4 | 3.0-5.0 | 19-29 | 0

 | 13-53 | 5.6-7.3 | 0.5-2.0 | 14-22 | 0

 | 53-80 | 5.6-8.4 | 0.0-0.5 | 11-20 | 0-35

 | | | | |

671B: | | | | |

 Biggsville------| 0-13 | 5.1-8.4 | 3.0-5.0 | 19-29 | 0

 | 13-53 | 5.6-7.3 | 0.5-2.0 | 14-22 | 0

 | 53-80 | 5.6-8.4 | 0.0-0.5 | 11-20 | 0-35

 | | | | |
Rock Island County, Illinois 375

Table 20.--Chemical Properties of the Soils--Continued

________________________________________________________________

 | | | | |

 Map symbol | Depth | Soil | Organic |Cation- |Calcium

 and soil name | |reaction | matter |exchange|carbonate

 | | | |capacity| ________________________________________________________________

 | In | pH | Pct |meq/100g| Pct

 | | | | |

675A: | | | | |

 Greenbush-------| 0-9 | 5.1-7.3 | 2.0-3.0 | 20-25 | 0

 | 9-16 | 5.1-7.3 | 0.5-1.0 | 20-25 | 0

 | 16-46 | 5.1-7.3 | 0.5-1.0 | 20-25 | 0

 | 46-60 | 5.6-7.3 | 0.0-0.5 | 20-25 | 0

 | | | | |

675B: | | | | |

 Greenbush-------| 0-14 | 5.1-7.3 | 2.0-3.0 | 20-25 | 0

 | 14-60 | 4.5-7.3 | 0.5-1.0 | 25-30 | 0

 | 60-80 | 5.6-7.3 | 0.0-0.5 | 20-25 | 0

 | | | | |

689B: | | | | |

 Coloma----------| 0-10 | 4.5-7.3 | 0.5-2.0 | 1-12 | 0

 | 10-27 | 4.5-7.3 | 0.0-0.5 | .1-9 | 0

 | 27-60 | 4.5-7.3 | 0.0-0.5 | .4-11 | 0

 | | | | |

689D: | | | | |

 Coloma----------| 0-12 | 4.5-7.3 | 0.5-2.0 | 1-12 | 0

 | 12-25 | 4.5-7.3 | 0.0-0.5 | .1-9 | 0

 | 25-60 | 4.5-7.3 | 0.0-0.5 | .4-11 | 0

 | | | | |

705A: | | | | |

 Buckhart--------| 0-20 | 5.6-7.3 | 3.0-4.0 | 18-25 | 0

 | 20-58 | 5.6-7.8 | 0.2-1.0 | 15-23 | 0

 | 58-60 | 6.6-7.8 | 0.0-0.5 | 12-18 | 0-15

 | | | | |

727A: | | | | |

 Waukee----------| 0-14 | 5.1-7.3 | 3.0-4.0 | 20-25 | 0

 | 14-34 | 5.1-6.0 | 1.0-2.0 | 20-25 | 0

 | 34-60 | 5.6-6.5 | 0.0-1.0 | 5-10 | 0

 | | | | |

741F: | | | | |

 Oakville--------| 0-3 | 4.5-7.3 | 0.5-2.0 | 1-2 | 0

 | 3-24 | 4.5-7.3 | 0.0-0.5 | 1-2 | 0

 | 24-60 | 5.6-7.3 | 0.0-0.5 | 1-2 | 0

 | | | | |

763A: | | | | |

 Joslin----------| 0-15 | 5.6-7.8 | 4.0-5.0 | 15-23 | 0

 | 15-40 | 5.6-7.3 | 0.5-1.0 | 12-18 | 0

 | 40-60 | 5.6-7.3 | 0.0-0.5 | 21-30 | 0

 | 60-85 | 5.6-8.4 | 0.0-0.4 | 11-21 | 0-20

 | | | | |

763B: | | | | |

 Joslin----------| 0-14 | 5.6-7.8 | 4.0-5.0 | 15-23 | 0

 | 14-48 | 5.6-7.3 | 0.5-1.0 | 12-18 | 0

 | 48-60 | 5.6-7.3 | 0.0-0.5 | 21-30 | 0

 | 60-85 | 5.6-8.4 | 0.0-0.4 | 11-21 | 0-20

 | | | | |

764A: | | | | |

 Coyne-----------| 0-23 | 5.6-7.3 | 2.0-4.0 | 7-19 | 0

 | 23-42 | 5.6-7.3 | 0.0-1.0 | 3-13 | 0

 | 42-60 | 5.6-7.3 | 0.0-0.5 | 11-22 | 0

 | | | | |

764C: | | | | |

 Coyne-----------| 0-23 | 5.6-7.3 | 2.0-4.0 | 7-19 | 0

 | 23-42 | 5.6-7.3 | 0.0-1.0 | 3-13 | 0

 | 42-55 | 5.6-7.3 | 0.0-0.5 | 11-22 | 0

 | 55-60 | 5.6-8.4 | 0.0-0.5 | 0-6 | 0-10

 | | | | |

774A: | | | | |

 Saude-----------| 0-14 | 5.6-7.3 | 3.0-4.0 | 20-25 | 0

 | 14-29 | 5.1-6.0 | 1.0-2.0 | 15-20 | 0

 | 29-60 | 5.1-6.5 | 0.0-0.5 | 5-10 | 0

 | | | | |
376 Soil Survey of

Table 20.--Chemical Properties of the Soils--Continued

________________________________________________________________

 | | | | |

 Map symbol | Depth | Soil | Organic |Cation- |Calcium

 and soil name | |reaction | matter |exchange|carbonate

 | | | |capacity| ________________________________________________________________

 | In | pH | Pct |meq/100g| Pct

 | | | | |

800C: | | | | |

 Psamments-------| 0-60 | 4.5-7.3 | 0.0-0.5 | .1-9.0| 0

 | 60-80 | 4.5-7.3 | 0.0-0.3 | .1-6.0| 0

 | | | | |

802B: | | | | |

 Orthents--------| 0-6 | 5.6-7.8 | 0.5-2.0 | 10-25 | 0-10

 | 6-60 | 5.6-7.8 | 0.2-1.0 | 10-20 | 0-20

 | | | | |

864. | | | | |

 Pits, quarries | | | | |

 | | | | |

865. | | | | |

 Pits, gravel | | | | |

 | | | | |

898F3: | | | | |

 Hickory---------| 0-12 | 4.5-7.3 | 0.5-1.0 | 17-23 | 0

 | 12-48 | 4.5-7.3 | 0.0-0.5 | 16-22 | 0

 | 48-60 | 5.1-8.4 | 0.0-0.2 | 9-19 | 0-15

 | | | | |

 Sylvan----------| 0-6 | 5.6-7.3 | 0.5-1.0 | 17-21 | 0

 | 6-30 | 5.6-7.3 | 0.0-0.5 | 15-22 | 0

 | 30-60 | 6.6-8.4 | 0.0-0.5 | 6-18 | 0-35

 | | | | |

898G: | | | | |

 Hickory---------| 0-10 | 4.5-7.3 | 1.0-2.0 | 14-19 | 0

 | 10-35 | 4.5-7.3 | 0.0-0.5 | 16-22 | 0

 | 35-60 | 5.1-8.4 | 0.0-0.2 | 9-19 | 0-15

 | | | | |

 Sylvan----------| 0-3 | 5.6-7.3 | 1.0-2.0 | 13-20 | 0

 | 3-7 | 5.6-7.3 | 0.2-1.0 | 9-17 | 0

 | 7-33 | 5.6-7.3 | 0.2-0.5 | 15-22 | 0

 | 33-60 | 6.6-8.4 | 0.2-0.5 | 11-17 | 0-35

 | | | | |

913D2: | | | | |

 Marseilles------| 0-4 | 5.1-6.5 | 1.0-3.0 | 14-22 | 0

 | 4-38 | 4.5-6.5 | 0.0-0.5 | 16-27 | 0

 | 38-60 | --- | --- | --- | ---

 | | | | |

 Hickory---------| 0-6 | 4.5-7.3 | 1.0-2.0 | 14-19 | 0

 | 6-51 | 4.5-7.3 | 0.0-0.5 | 16-22 | 0

 | 51-60 | 5.1-8.4 | 0.0-0.2 | 9-19 | 0-15

 | | | | |

913F: | | | | |

 Marseilles------| 0-12 | 5.1-6.5 | 1.0-3.0 | 14-22 | 0

 | 12-18 | 5.6-6.5 | 0.5-1.0 | 15-23 | 0

 | 18-34 | 4.5-6.5 | 0.5-1.0 | 16-27 | 0

 | 34-60 | --- | --- | --- | ---

 | | | | |

 Hickory---------| 0-8 | 4.5-7.3 | 1.0-2.0 | 14-19 | 0

 | 8-57 | 4.5-7.3 | 0.0-0.5 | 16-22 | 0

 | 57-60 | 5.1-8.4 | 0.0-0.2 | 9-19 | 0-15

 | | | | |

913G: | | | | |

 Marseilles------| 0-9 | 5.1-6.5 | 1.0-3.0 | 14-22 | 0

 | 9-36 | 4.5-6.5 | 0.0-1.0 | 16-27 | 0

 | 36-60 | --- | --- | --- | ---

 | | | | |

 Hickory---------| 0-12 | 4.5-7.3 | 1.0-2.0 | 14-19 | 0

 | 12-53 | 4.5-7.3 | 0.0-0.5 | 16-22 | 0

 | 53-60 | 5.1-8.4 | 0.0-0.2 | 9-19 | 0-15

 | | | | |
Rock Island County, Illinois 377

Table 20.--Chemical Properties of the Soils--Continued

________________________________________________________________

 | | | | |

 Map symbol | Depth | Soil | Organic |Cation- |Calcium

 and soil name | |reaction | matter |exchange|carbonate

 | | | |capacity| ________________________________________________________________

 | In | pH | Pct |meq/100g| Pct

 | | | | |

917C2: | | | | |

 Oakville--------| 0-7 | 4.5-7.3 | 0.5-2.0 | 1-2 | 0

 | 7-51 | 4.5-7.3 | 0.0-0.5 | 1-2 | 0

 | 51-60 | 5.6-7.3 | 0.0-0.5 | 1-2 | 0

 | | | | |

 Tell------------| 0-7 | 5.1-7.3 | 1.0-3.0 | 5-20 | 0

 | 7-23 | 5.1-6.5 | 0.0-0.5 | 4-25 | 0

 | 23-27 | 5.1-6.5 | 0.0-0.5 | 2-20 | 0

 | 27-60 | 5.1-6.5 | 0.0-0.5 | 0-7 | 0

 | | | | |

917D2: | | | | |

 Oakville--------| 0-9 | 4.5-7.3 | 0.5-2.0 | 1-2 | 0

 | 9-36 | 4.5-7.3 | 0.0-0.5 | 1-2 | 0

 | 36-60 | 5.6-7.3 | 0.0-0.5 | 1-2 | 0

 | | | | |

 Tell------------| 0-8 | 5.1-7.3 | 1.0-3.0 | 5-20 | 0

 | 8-28 | 5.1-6.5 | 0.0-0.5 | 4-25 | 0

 | 28-32 | 5.1-6.5 | 0.0-0.5 | 2-20 | 0

 | 32-60 | 5.1-6.5 | 0.0-0.5 | 0-7 | 0

 | | | | |

943D2: | | | | |

 Seaton----------| 0-4 | 5.6-7.3 | 0.5-2.0 | 10-17 | 0

 | 4-39 | 4.5-7.3 | 0.5-1.0 | 11-16 | 0

 | 39-60 | 5.6-8.4 | 0.2-0.5 | 6-15 | 0-35

 | | | | |

 Timula----------| 0-5 | 6.1-7.8 | 1.0-2.0 | 8-15 | 0-5

 | 5-23 | 6.1-7.8 | 1.0-2.0 | 8-15 | 0-5

 | 23-60 | 7.4-8.4 | 0.2-0.5 | 6-12 | 5-35

 | | | | |

943F2: | | | | |

 Seaton----------| 0-6 | 5.6-7.3 | 0.5-2.0 | 10-17 | 0

 | 6-49 | 4.5-7.3 | 0.5-1.0 | 11-16 | 0

 | 49-60 | 5.6-8.4 | 0.2-0.5 | 6-15 | 0-35

 | | | | |

 Timula----------| 0-6 | 6.1-7.8 | 1.0-2.0 | 8-15 | 0-5

 | 6-28 | 6.1-7.8 | 1.0-2.0 | 8-15 | 0-5

 | 28-60 | 7.4-8.4 | 0.2-0.5 | 6-12 | 5-35

 | | | | |

944D2: | | | | |

 Velma-----------| 0-17 | 5.1-7.3 | 3.0-4.0 | 18-24 | 0

 | 17-56 | 4.5-7.3 | 0.2-1.0 | 15-23 | 0

 | 56-60 | 7.4-8.4 | 0.2-0.5 | 12-19 | 5-30

 | | | | |

 Coatsburg-------| 0-12 | 5.1-7.8 | 3.0-5.0 | 18-26 | 0

 | 12-54 | 5.1-6.5 | 0.0-1.0 | 21-29 | 0

 | 54-72 | 5.6-7.8 | 0.0-0.5 | 12-22 | 0

 | | | | |

946D3: | | | | |

 Hickory---------| 0-7 | 4.5-7.3 | 0.5-1.0 | 17-23 | 0

 | 7-42 | 4.5-7.3 | 0.0-0.5 | 16-22 | 0

 | 42-60 | 5.1-8.4 | 0.0-0.2 | 9-19 | 0-15

 | | | | |

 Atlas-----------| 0-6 | 4.5-7.3 | 0.5-1.0 | 19-26 | 0

 | 6-12 | 4.5-7.3 | 0.0-1.0 | 21-29 | 0

 | 12-55 | 4.5-7.8 | 0.0-1.0 | 18-29 | 0-25

 | 55-60 | 6.1-7.8 | 0.0-1.0 | 12-20 | 0-25

 | | | | |

946F3: | | | | |

 Hickory---------| 0-6 | 4.5-7.3 | 0.5-1.0 | 17-23 | 0

 | 6-42 | 4.5-7.3 | 0.0-0.5 | 16-22 | 0

 | 42-60 | 5.1-7.8 | 0.0-0.2 | 9-19 | 0-15

 | | | | |
378 Soil Survey of

Table 20.--Chemical Properties of the Soils--Continued

________________________________________________________________

 | | | | |

 Map symbol | Depth | Soil | Organic |Cation- |Calcium

 and soil name | |reaction | matter |exchange|carbonate

 | | | |capacity| ________________________________________________________________

 | In | pH | Pct |meq/100g| Pct

 | | | | |

946F3: | | | | |

 Atlas-----------| 0-6 | 4.5-7.3 | 0.5-1.0 | 19-26 | 0

 | 6-12 | 4.5-7.3 | 0.0-1.0 | 21-29 | 0

 | 12-55 | 4.5-7.8 | 0.0-1.0 | 18-29 | 0-25

 | 55-60 | 6.1-7.8 | 0.0-1.0 | 12-20 | 0-25

 | | | | |

959G: | | | | |

 Strawn----------| 0-12 | 6.1-7.3 | 1.0-3.0 | 13-22 | 0

 | 12-23 | 5.6-7.8 | 0.2-1.0 | 16-23 | 0

 | 23-60 | 7.4-8.4 | 0.2-0.5 | 12-19 | 5-30

 | | | | |

 Chute-----------| 0-3 | 6.6-8.4 | 0.5-2.0 | 1-9 | 0-20

 | 3-13 | 7.4-8.4 | 0.0-0.5 | 1-6 | 10-30

 | 13-60 | 7.4-8.4 | 0.0-0.5 | 1-6 | 10-30

 | | | | |

960D2: | | | | |

 Hickory---------| 0-6 | 4.5-7.3 | 1.0-2.0 | 14-19 | 0

 | 6-51 | 4.5-7.3 | 0.0-0.5 | 16-22 | 0

 | 51-60 | 5.1-8.4 | 0.0-0.2 | 9-19 | 0-15

 | | | | |

 Sylvan----------| 0-4 | 5.6-7.3 | 1.0-2.0 | 14-20 | 0

 | 4-32 | 5.6-7.3 | 0.0-0.5 | 15-22 | 0

 | 32-60 | 6.6-8.4 | 0.0-0.5 | 6-18 | 0-35

 | | | | |

 Fayette---------| 0-6 | 5.1-7.3 | 1.0-2.0 | 18-25 | 0

 | 6-48 | 4.5-6.0 | 0.0-0.5 | 15-20 | 0

 | 48-60 | 5.1-7.8 | 0.0-0.5 | 15-20 | 0-15

 | | | | |

960D3: | | | | |

 Hickory---------| 0-5 | 4.5-7.3 | 0.5-1.0 | 17-23 | 0

 | 5-30 | 4.5-7.3 | 0.0-0.5 | 16-22 | 0

 | 30-40 | 4.5-7.8 | 0.0-0.5 | 16-22 | 0

 | 40-60 | 5.6-8.4 | 0.0-0.5 | 5-15 | 0-25

 | | | | |

 Sylvan----------| 0-9 | 5.6-7.3 | 0.5-1.0 | 17-21 | 0

 | 9-28 | 5.6-7.3 | 0.0-0.5 | 15-22 | 0

 | 28-60 | 6.6-8.4 | 0.0-0.5 | 6-18 | 0-35

 | | | | |

 Fayette---------| 0-8 | 5.1-7.3 | 0.5-1.0 | 25-30 | 0

 | 8-36 | 4.5-6.0 | 0.0-0.5 | 15-20 | 0

 | 36-60 | 5.1-7.8 | 0.0-0.5 | 15-20 | 0-15

 | | | | |

960F: | | | | |

 Hickory---------| 0-12 | 4.5-7.3 | 1.0-2.0 | 14-19 | 0

 | 12-48 | 4.5-7.3 | 0.0-0.5 | 16-22 | 0

 | 48-60 | 5.1-8.4 | 0.0-0.2 | 9-19 | 0-15

 | | | | |

 Sylvan----------| 0-6 | 5.6-7.3 | 1.0-2.0 | 13-20 | 0

 | 6-30 | 5.6-7.3 | 0.2-0.5 | 15-22 | 0

 | 30-60 | 6.6-8.4 | 0.2-0.5 | 11-17 | 0-35

 | | | | |

 Fayette---------| 0-10 | 5.1-7.3 | 2.0-3.0 | 15-20 | 0

 | 10-60 | 4.5-6.5 | 0.0-1.0 | 15-20 | 0

 | 60-70 | 5.1-7.8 | 0.0-0.5 | 15-20 | 0-15

 | | | | |

961A: | | | | |

 Burkhardt-------| 0-13 | 5.1-6.5 | 2.0-3.0 | 5-15 | 0

 | 13-24 | 5.1-6.5 | 0.5-1.0 | 4-15 | 0

 | 24-60 | 5.6-6.5 | 0.0-0.5 | 0-6 | 0

 | | | | |

 Saude-----------| 0-14 | 5.6-7.3 | 3.0-4.0 | 20-25 | 0

 | 14-29 | 5.1-6.0 | 1.0-2.0 | 15-20 | 0

 | 29-60 | 5.1-6.5 | 0.0-0.5 | 5-10 | 0

 | | | | |
Rock Island County, Illinois 379

Table 20.--Chemical Properties of the Soils--Continued

________________________________________________________________

 | | | | |

 Map symbol | Depth | Soil | Organic |Cation- |Calcium

 and soil name | |reaction | matter |exchange|carbonate

 | | | |capacity| ________________________________________________________________

 | In | pH | Pct |meq/100g| Pct

 | | | | |

962F: | | | | |

 Sylvan----------| 0-6 | 5.6-7.3 | 1.0-2.0 | 13-20 | 0

 | 6-30 | 5.6-7.3 | 0.2-0.5 | 15-22 | 0

 | 30-60 | 6.6-8.4 | 0.2-0.5 | 11-17 | 0-35

 | | | | |

 Bold------------| 0-3 | 7.4-8.4 | 0.5-2.0 | 6-15 | 10-40

 | 3-60 | 7.4-8.4 | 0.0-0.5 | 5-12 | 10-50

 | | | | |

1076A: | | | | |

 Otter-----------| 0-31 | 6.1-7.8 | 3.0-5.0 | 16-36 | 0

 | 31-40 | 6.1-7.8 | 1.0-3.0 | 12-22 | 0

 | 40-64 | 6.1-8.4 | 0.5-2.0 | 10-21 | 0

 | | | | |

1082A: | | | | |

 Millington------| 0-19 | 7.4-8.4 | 4.0-6.0 | 20-28 | 5-20

 | 19-35 | 7.4-8.4 | 1.0-3.0 | 12-27 | 5-30

 | 35-60 | 7.4-8.4 | 0.1-2.0 | 11-25 | 10-30

 | | | | |

1107A: | | | | |

 Sawmill---------| 0-29 | 6.1-7.8 | 4.0-5.0 | 24-31 | 0

 | 29-38 | 6.1-7.8 | 1.0-3.0 | 17-27 | 0

 | 38-60 | 6.1-7.8 | 0.0-2.0 | 16-25 | 0-10

 | | | | |

1334A: | | | | |

 Birds-----------| 0-9 | 5.6-7.3 | 2.0-4.0 | 8-12 | 0

 | 9-37 | 5.6-7.8 | 0.5-1.0 | 8-14 | 0

 | 37-60 | 5.6-7.3 | 0.5-1.0 | 6-12 | 0

 | | | | |

1400A: | | | | |

 Calco-----------| 0-37 | 7.4-8.4 | 5.0-7.0 | 36-41 | 5-30

 | 37-49 | 7.4-8.4 | 3.0-5.0 | 36-41 | 5-30

 | 49-60 | 7.4-8.4 | 1.0-3.0 | 36-41 | 5-30

 | | | | |

1654A: | | | | |

 Moline----------| 0-14 | 6.1-7.5 | 2.0-4.0 | 32-67 | 0-5

 | 14-33 | 6.1-7.8 | 0.5-1.2 | 37-62 | 0-10

 | 33-75 | 6.1-7.8 | 0.2-0.8 | 28-60 | 0-10

 | 75-98 | 7.4-8.4 | 0.0-0.5 | 14-35 | 5-35

 | | | | |

3074A: | | | | |

 Radford---------| 0-12 | 5.6-7.8 | 2.0-4.0 | 15-24 | 0

 | 12-33 | 6.1-7.8 | 0.0-2.0 | 11-20 | 0

 | 33-60 | 6.1-7.8 | 0.0-1.0 | 14-23 | 0-20

 | | | | |

3076A: | | | | |

 Otter-----------| 0-43 | 6.1-7.8 | 3.0-5.0 | 16-36 | 0

 | 43-50 | 6.1-7.8 | 1.0-3.0 | 12-22 | 0

 | 50-60 | 6.1-8.4 | 0.5-2.0 | 10-21 | 0

 | | | | |

3082A: | | | | |

 Millington------| 0-19 | 7.4-8.4 | 4.0-6.0 | 20-28 | 5-20

 | 19-35 | 7.4-8.4 | 1.0-3.0 | 12-27 | 5-30

 | 35-60 | 7.4-8.4 | 0.1-2.0 | 11-25 | 10-30

 | | | | |

3083A: | | | | |

 Wabash----------| 0-15 | 5.1-7.3 | 2.0-4.0 | 30-35 | 0

 | 15-60 | 5.1-7.8 | 1.0-2.0 | 28-42 | 0

 | | | | |

3107A: | | | | |

 Sawmill---------| 0-26 | 6.1-7.8 | 4.0-5.0 | 24-31 | 0

 | 26-54 | 6.1-7.8 | 1.0-3.0 | 17-27 | 0

 | 54-60 | 6.1-7.8 | 0.0-2.0 | 16-25 | 0-10

 | | | | |
380 Soil Survey of

Table 20.--Chemical Properties of the Soils--Continued

________________________________________________________________

 | | | | |

 Map symbol | Depth | Soil | Organic |Cation- |Calcium

 and soil name | |reaction | matter |exchange|carbonate

 | | | |capacity| ________________________________________________________________

 | In | pH | Pct |meq/100g| Pct

 | | | | |

3239A: | | | | |

 Dorchester------| 0-9 | 7.4-8.4 | 0.5-2.0 | 15-20 | 5-30

 | 9-32 | 7.4-8.4 | 0.0-0.5 | 15-20 | 5-30

 | 32-60 | 6.6-8.4 | 1.0-4.0 | 15-20 | 0-15

 | | | | |

3400A: | | | | |

 Calco-----------| 0-34 | 7.4-8.4 | 5.0-7.0 | 36-41 | 5-30

 | 34-45 | 7.4-8.4 | 3.0-5.0 | 36-41 | 5-30

 | 45-60 | 7.4-8.4 | 1.0-3.0 | 36-41 | 5-30

 | | | | |

3415A: | | | | |

 Orion-----------| 0-7 | 5.6-7.8 | 1.0-3.0 | 7-20 | 0

 | 7-22 | 5.6-7.8 | 1.0-3.0 | 7-20 | 0

 | 22-60 | 5.6-7.8 | 3.0-8.0 | 10-35 | 0

 | 60-80 | 5.6-7.8 | 0.0-0.5 | 5-15 | 0

 | | | | |

3428A: | | | | |

 Coffeen---------| 0-17 | 5.6-7.8 | 2.0-3.0 | 13-22 | 0

 | 17-33 | 5.6-7.3 | 0.0-2.0 | 6-15 | 0

 | 33-60 | 5.6-7.3 | 0.0-2.0 | 3-13 | 0

 | | | | |

3451A: | | | | |

 Lawson----------| 0-14 | 6.1-7.8 | 2.0-4.0 | 11-28 | 0

 | 14-33 | 6.1-7.8 | 2.0-4.0 | 11-29 | 0

 | 33-80 | 6.1-7.8 | 0.0-1.0 | 11-23 | 0

 | | | | |

3646L: | | | | |

 Fluvaquents-----| 0-9 | 5.6-7.3 | 2.0-4.0 | 8-12 | 0

 | 9-37 | 5.6-7.8 | 0.5-1.0 | 8-14 | 0

 | 37-60 | 5.6-7.3 | 0.5-1.0 | 6-12 | 0

 | | | | |

7076A: | | | | |

 Otter-----------| 0-38 | 6.1-7.8 | 3.0-10 | 16-36 | 0

 | 38-50 | 6.1-7.8 | 1.0-3.0 | 12-22 | 0

 | 50-60 | 6.1-8.4 | 0.5-2.0 | 10-21 | 0

 | | | | |

7083A: | | | | |

 Wabash----------| 0-15 | 5.1-7.3 | 2.0-4.0 | 30-35 | 0

 | 15-60 | 5.1-7.8 | 1.0-2.0 | 28-42 | 0

 | | | | |

7107A: | | | | |

 Sawmill---------| 0-10 | 6.1-7.8 | 4.0-5.0 | 24-31 | 0

 | 10-35 | 6.1-7.8 | 1.0-3.0 | 17-27 | 0

 | 35-60 | 6.1-7.8 | 0.2-1.0 | 12-23 | 0-10

 | | | | |

7239A: | | | | |

 Dorchester------| 0-9 | 7.4-8.4 | 0.5-2.0 | 15-20 | 5-30

 | 9-32 | 7.4-8.4 | 0.0-0.5 | 15-20 | 5-30

 | 32-60 | 6.6-8.4 | 1.0-4.0 | 15-20 | 0-15

 | | | | |

7304A: | | | | |

 Landes----------| 0-19 | 5.6-8.4 | 1.0-2.0 | 6-16 | 0

 | 19-32 | 5.6-8.4 | 0.5-1.0 | 3-15 | 0-10

 | 32-60 | 5.6-8.4 | 0.0-0.5 | 3-15 | 0-20

 | | | | |

7415A: | | | | |

 Orion-----------| 0-21 | 5.6-7.8 | 1.0-3.0 | 7-20 | 0

 | 21-27 | 5.6-7.8 | 1.0-3.0 | 7-20 | 0

 | 27-45 | 5.6-7.8 | 3.0-8.0 | 10-35 | 0

 | 45-60 | 5.6-7.8 | 0.0-0.5 | 5-15 | 0

 | | | | |
Rock Island County, Illinois 381

Table 20.--Chemical Properties of the Soils--Continued

________________________________________________________________

 | | | | |

 Map symbol | Depth | Soil | Organic |Cation- |Calcium

 and soil name | |reaction | matter |exchange|carbonate

 | | | |capacity| ________________________________________________________________

 | In | pH | Pct |meq/100g| Pct

 | | | | |

7428A: | | | | |

 Coffeen---------| 0-20 | 5.6-7.8 | 2.0-3.0 | 13-22 | 0

 | 20-32 | 5.6-7.3 | 0.0-2.0 | 6-15 | 0

 | 32-60 | 5.6-7.3 | 0.0-2.0 | 3-13 | 0

 | | | | |

7451A: | | | | |

 Lawson----------| 0-14 | 6.1-7.8 | 3.0-7.0 | 11-28 | 0

 | 14-33 | 6.1-7.8 | 3.0-7.0 | 11-29 | 0

 | 33-80 | 6.1-7.8 | 1.0-4.0 | 11-23 | 0

 | | | | |

7654A: | | | | |

 Moline----------| 0-14 | 6.1-7.5 | 2.0-4.0 | 32-67 | 0-5

 | 14-33 | 6.1-7.8 | 0.5-1.2 | 37-62 | 0-10

 | 33-75 | 6.1-7.8 | 0.2-0.8 | 28-60 | 0-10

 | 75-98 | 7.4-8.4 | 0.0-0.5 | 14-35 | 5-35

 | | | | |

8107+: | | | | |

 Sawmill---------| 0-8 | 6.1-7.8 | 4.0-5.0 | 19-26 | 0

 | 8-14 | 6.1-7.8 | 1.0-3.0 | 17-27 | 0

 | 14-46 | 6.1-7.8 | 1.0-3.0 | 17-27 | 0

 | 46-60 | 6.1-7.8 | 0.0-2.0 | 16-25 | 0-10

 | | | | |

8302A: | | | | |

 Ambraw----------| 0-9 | 5.6-7.3 | 2.0-3.0 | 15-27 | 0

 | 9-32 | 5.1-7.3 | 0.5-2.0 | 19-29 | 0

 | 32-38 | 5.1-7.3 | 0.5-1.0 | 15-23 | 0

 | 38-60 | 5.6-8.4 | 0.5-1.0 | 11-19 | 0

 | | | | |

8400A: | | | | |

 Calco-----------| 0-34 | 7.4-8.4 | 5.0-7.0 | 36-41 | 5-30

 | 34-45 | 7.4-8.4 | 3.0-5.0 | 36-41 | 5-30

 | 45-60 | 7.4-8.4 | 1.0-3.0 | 36-41 | 5-30

 | | | | |

8404A: | | | | |

 Titus-----------| 0-13 | 6.1-7.3 | 2.0-4.0 | 25-32 | 0

 | 13-68 | 6.1-7.8 | 0.2-1.0 | 21-29 | 0

 | 68-80 | 6.1-7.8 | 0.2-0.5 | 12-19 | 0-5

 | | | | | ________________________________________________________________
382 Soil Survey of

Table 21.--Water Features

(Depths of layers are in feet. See text for definitions of terms used in this table. Absence of an entry indicates

 that the feature is not a concern or that data were not estimated)

_____________________________________________________________________________________________________________________

 | | | Water table | | Ponding | Flooding

 | | | depth | | | _______________ ________________________________________________________

 Map symbol |Hydro-| Month | Upper | Lower |Kind of |Surface| Duration |Frequency | Duration | Frequency

 and soil name |logic | | limit | limit | water | water | | | |

 |group | | | | table | depth | | | | _____________________________________________________________________________________________________________________

 | | | | | | | | | |

8D2, 8D3, 8F, | | | | | | | | | |

 8F3: | | | | | | | | | |

 Hickory--------| B | | | | | | | | |

 | | Jan-Dec | >6.0 | >6.0 | --- | --- | --- | --- | --- | ---

 | | | | | | | | | |

19C3, 19D, 19D3, | | | | | | | | | |

 19F, 19F3: | | | | | | | | | |

 Sylvan---------| B | | | | | | | | |

 | | Jan-Dec | >6.0 | >6.0 | --- | --- | --- | --- | --- | ---

 | | | | | | | | | |

45A: | | | | | | | | | |

 Denny-----------| D | | | | | | | | |

 | | Jan-May | 0.0 | >6.0 |Apparent|0.0-1.0| Brief | Frequent | --- | ---

 | | | | | | | | | |

51A: | | | | | | | | | |

 Muscatune-------| B | | | | | | | | |

 | | Jan-May |1.0-2.0| >6.0 |Apparent| --- | --- | --- | --- | ---

 | | | | | | | | | |

61A: | | | | | | | | | |

 Atterberry------| B | | | | | | | | |

 | | Jan-May |1.0-2.0| >6.0 |Apparent| --- | --- | --- | --- | ---

 | | | | | | | | | |

68A: | | | | | | | | | |

 Sable-----------| B/D | | | | | | | | |

 | | Jan-May | 0.0 | >6.0 |Apparent|0.0-0.5| Brief |Occasional| --- | ---

 | | | | | | | | | |

86B, 86C2: | | | | | | | | | |

 Osco------------| B | | | | | | | | |

 | | Feb-Apr |4.0-6.0| >6.0 |Apparent| --- | --- | --- | --- | ---

 | | | | | | | | | |

87A, 87C2: | | | | | | | | | |

 Dickinson-------| B | | | | | | | | |

 | | Jan-Dec | >6.0 | >6.0 | --- | --- | --- | --- | --- | ---

 | | | | | | | | | |

88A: | | | | | | | | | |

 Sparta----------| A | | | | | | | | |

 | | Jan-Dec | >6.0 | >6.0 | --- | --- | --- | --- | --- | ---

 | | | | | | | | | |

172A: | | | | | | | | | |

 Hoopeston-------| B | | | | | | | | |

 | | Jan-May |1.0-2.5| >6.0 |Apparent| --- | --- | --- | --- | ---

 | | | | | | | | | |

212B: | | | | | | | | | |

 Thebes----------| B | | | | | | | | |

 | | Jan-Dec | >6.0 | >6.0 | --- | --- | --- | --- | --- | ---

 | | | | | | | | | |

250D: | | | | | | | | | |

 Velma-----------| B | | | | | | | | |

 | | Jan-Dec | >6.0 | >6.0 | --- | --- | --- | --- | --- | ---

 | | | | | | | | | |

261A: | | | | | | | | | |

 Niota-----------| D | | | | | | | | |

 | | Jan-May |0.0-1.0| >6.0 |Apparent|0.0-0.5| Brief | Frequent | --- | ---

 | | | | | | | | | |

274B, 274B2, | | | | | | | | | |

 274C2, 274D2: | | | | | | | | | |

 Seaton---------| B | | | | | | | | |

 | | Jan-Dec | >6.0 | >6.0 | --- | --- | --- | --- | --- | ---

 | | | | | | | | | |
Rock Island County, Illinois 383

Table 21.--Water Features--Continued

_____________________________________________________________________________________________________________________

 | | | Water table | | Ponding | Flooding

 | | | depth | | | _______________ ________________________________________________________

 Map symbol |Hydro-| Month | Upper | Lower |Kind of |Surface| Duration |Frequency | Duration | Frequency

 and soil name |logic | | limit | limit | water | water | | | |

 |group | | | | table | depth | | | | _____________________________________________________________________________________________________________________

 | | | | | | | | | |

275A: | | | | | | | | | |

 Joy-------------| B | | | | | | | | |

 | | Jan-May |1.0-2.0| >6.0 |Apparent| --- | --- | --- | --- | ---

 | | | | | | | | | |

278A: | | | | | | | | | |

 Stronghurst-----| B | | | | | | | | |

 | | Mar-Jun |1.0-2.0| >6.0 |Apparent| --- | --- | --- | --- | ---

 | | | | | | | | | |

279A, 279B: | | | | | | | | | |

 Rozetta---------| B | | | | | | | | |

 | | Feb-Apr |4.0-6.0| >6.0 |Apparent| --- | --- | --- | --- | ---

 | | | | | | | | | |

280B, 280B2, | | | | | | | | | |

 280C2, 280C3: | | | | | | | | | |

 Fayette--------| B | | | | | | | | |

 | | Jan-Dec | >6.0 | >6.0 | --- | --- | --- | --- | --- | ---

 | | | | | | | | | |

317A: | | | | | | | | | |

 Millsdale-------| C/D | | | | | | | | |

 | | Jan-Jun |0.0-1.0| >6.0 |Apparent|0.0-1.0| Brief | Frequent | --- | ---

 | | | | | | | | | |

430A, 430B: | | | | | | | | | |

 Raddle----------| B | | | | | | | | |

 | | Jan-Dec | >6.0 | >6.0 | --- | --- | --- | --- | --- | ---

 | | | | | | | | | |

525A: | | | | | | | | | |

 Joslin----------| B | | | | | | | | |

 | | Jan-Dec | >6.0 | >6.0 | --- | --- | --- | --- | --- | ---

 | | | | | | | | | |

567C2, 567D2: | | | | | | | | | |

 Elkhart---------| B | | | | | | | | |

 | | Feb-Apr |4.0-6.0| >6.0 |Apparent| --- | --- | --- | --- | ---

 | | | | | | | | | |

570B, 570C3, | | | | | | | | | |

 570D3: | | | | | | | | | |

 Martinsville---| B | | | | | | | | |

 | | Jan-Dec | >6.0 | >6.0 | --- | --- | --- | --- | --- | ---

 | | | | | | | | | |

647A: | | | | | | | | | |

 Lawler----------| B | | | | | | | | |

 | | Jan-May |1.0-2.0| >6.0 |Apparent| --- | --- | --- | --- | ---

 | | | | | | | | | |

671A, 671B: | | | | | | | | | |

 Biggsville------| B | | | | | | | | |

 | | Feb-Apr |4.0-6.0| >6.0 |Apparent| --- | --- | --- | --- | ---

 | | | | | | | | | |

675A, 675B: | | | | | | | | | |

 Greenbush-------| B | | | | | | | | |

 | | Feb-Apr |4.0-6.0| >6.0 |Apparent| --- | --- | --- | --- | ---

 | | | | | | | | | |

689B, 689D: | | | | | | | | | |

 Coloma----------| A | | | | | | | | |

 | | Jan-Dec | >6.0 | >6.0 | --- | --- | --- | --- | --- | ---

 | | | | | | | | | |

705A: | | | | | | | | | |

 Buckhart--------| B | | | | | | | | |

 | | Feb-Apr |2.0-3.5| >6.0 |Apparent| --- | --- | --- | --- | ---

 | | | | | | | | | |

727A: | | | | | | | | | |

 Waukee----------| B | | | | | | | | |

 | | Jan-Dec | >6.0 | >6.0 | --- | --- | --- | --- | --- | ---

 | | | | | | | | | |
384 Soil Survey of

Table 21.--Water Features--Continued

_____________________________________________________________________________________________________________________

 | | | Water table | | Ponding | Flooding

 | | | depth | | | _______________ ________________________________________________________

 Map symbol |Hydro-| Month | Upper | Lower |Kind of |Surface| Duration |Frequency | Duration | Frequency

 and soil name |logic | | limit | limit | water | water | | | |

 |group | | | | table | depth | | | | _____________________________________________________________________________________________________________________

 | | | | | | | | | |

741F: | | | | | | | | | |

 Oakville--------| A | | | | | | | | |

 | | Jan-Dec | >6.0 | >6.0 | --- | --- | --- | --- | --- | ---

 | | | | | | | | | |

763A, 763B: | | | | | | | | | |

 Joslin----------| B | | | | | | | | |

 | | Jan-Dec | >6.0 | >6.0 | --- | --- | --- | --- | --- | ---

 | | | | | | | | | |

764A, 764C: | | | | | | | | | |

 Coyne-----------| B | | | | | | | | |

 | | Jan-Dec | >6.0 | >6.0 | --- | --- | --- | --- | --- | ---

 | | | | | | | | | |

774A: | | | | | | | | | |

 Saude-----------| B | | | | | | | | |

 | | Jan-Dec | >6.0 | >6.0 | --- | --- | --- | --- | --- | ---

 | | | | | | | | | |

800C: | | | | | | | | | |

 Psamments-------| A | | | | | | | | |

 | | Jan-Dec | >6.0 | >6.0 | --- | --- | --- | --- | --- | ---

 | | | | | | | | | |

802B: | | | | | | | | | |

 Orthents--------| B | | | | | | | | |

 | | Jan-Dec | >6.0 | >6.0 | --- | --- | --- | --- | --- | ---

 | | | | | | | | | |

864. | | | | | | | | | |

 Pits, quarries | | | | | | | | | |

 | | | | | | | | | |

865. | | | | | | | | | |

 Pits, gravel | | | | | | | | | |

 | | | | | | | | | |

898F3, 898G: | | | | | | | | | |

 Hickory---------| B | | | | | | | | |

 | | Jan-Dec | >6.0 | >6.0 | --- | --- | --- | --- | --- | ---

 | | | | | | | | | |

 Sylvan----------| B | | | | | | | | |

 | | Jan-Dec | >6.0 | >6.0 | --- | --- | --- | --- | --- | ---

 | | | | | | | | | |

913D2, 913F, | | | | | | | | | |

 913G: | | | | | | | | | |

 Marseilles-----| B | | | | | | | | |

 | | Jan-Dec | >6.0 | >6.0 | --- | --- | --- | --- | --- | ---

 | | | | | | | | | |

 Hickory--------| B | | | | | | | | |

 | | Jan-Dec | >6.0 | >6.0 | --- | --- | --- | --- | --- | ---

 | | | | | | | | | |

917C2, 917D2: | | | | | | | | | |

 Oakville--------| A | | | | | | | | |

 | | Jan-Dec | >6.0 | >6.0 | --- | --- | --- | --- | --- | ---

 | | | | | | | | | |

 Tell------------| B | | | | | | | | |

 | | Jan-Dec | >6.0 | >6.0 | --- | --- | --- | --- | --- | ---

 | | | | | | | | | |

943D2, 943F2: | | | | | | | | | |

 Seaton----------| B | | | | | | | | |

 | | Jan-Dec | >6.0 | >6.0 | --- | --- | --- | --- | --- | ---

 | | | | | | | | | |

 Timula----------| B | | | | | | | | |

 | | Jan-Dec | >6.0 | >6.0 | --- | --- | --- | --- | --- | ---

 | | | | | | | | | |
Rock Island County, Illinois 385

Table 21.--Water Features--Continued

_____________________________________________________________________________________________________________________

 | | | Water table | | Ponding | Flooding

 | | | depth | | | _______________ ________________________________________________________

 Map symbol |Hydro-| Month | Upper | Lower |Kind of |Surface| Duration |Frequency | Duration | Frequency

 and soil name |logic | | limit | limit | water | water | | | |

 |group | | | | table | depth | | | | _____________________________________________________________________________________________________________________

 | | | | | | | | | |

944D2: | | | | | | | | | |

 Velma-----------| B | | | | | | | | |

 | | Jan-Dec | >6.0 | >6.0 | --- | --- | --- | --- | --- | ---

 | | | | | | | | | |

 Coatsburg-------| D | | | | | | | | |

 | | Jan-May |0.0-1.0|1.0-3.0|Perched | --- | --- | --- | --- | ---

 | | | | | | | | | |

946D3, 946F3: | | | | | | | | | |

 Hickory---------| B | | | | | | | | |

 | | Jan-Dec | >6.0 | >6.0 | --- | --- | --- | --- | --- | ---

 | | | | | | | | | |

 Atlas-----------| D | | | | | | | | |

 | | Jan-May |0.5-2.0|2.0-4.0|Perched | --- | --- | --- | --- | ---

 | | | | | | | | | |

959G: | | | | | | | | | |

 Strawn----------| B | | | | | | | | |

 | | Jan-Dec | >6.0 | >6.0 | --- | --- | --- | --- | --- | ---

 | | | | | | | | | |

 Chute-----------| A | | | | | | | | |

 | | Jan-Dec | >6.0 | >6.0 | --- | --- | --- | --- | --- | ---

 | | | | | | | | | |

960D2, 960D3, | | | | | | | | | |

 960F: | | | | | | | | | |

 Hickory--------| B | | | | | | | | |

 | | Jan-Dec | >6.0 | >6.0 | --- | --- | --- | --- | --- | ---

 | | | | | | | | | |

 Sylvan---------| B | | | | | | | | |

 | | Jan-Dec | >6.0 | >6.0 | --- | --- | --- | --- | --- | ---

 | | | | | | | | | |

 Fayette--------| B | | | | | | | | |

 | | Jan-Dec | >6.0 | >6.0 | --- | --- | --- | --- | --- | ---

 | | | | | | | | | |

961A: | | | | | | | | | |

 Burkhardt-------| B | | | | | | | | |

 | | Jan-Dec | >6.0 | >6.0 | --- | --- | --- | --- | --- | ---

 | | | | | | | | | |

 Saude-----------| B | | | | | | | | |

 | | Jan-Dec | >6.0 | >6.0 | --- | --- | --- | --- | --- | ---

 | | | | | | | | | |

962F: | | | | | | | | | |

 Sylvan----------| B | | | | | | | | |

 | | Jan-Dec | >6.0 | >6.0 | --- | --- | --- | --- | --- | ---

 | | | | | | | | | |

 Bold------------| B | | | | | | | | |

 | | Jan-Dec | >6.0 | >6.0 | --- | --- | --- | --- | --- | ---

 | | | | | | | | | |

1076A: | | | | | | | | | |

 Otter-----------| B/D | | | | | | | | |

 | | Jan-Jun |0.0-1.0| >6.0 |Apparent|0.0-0.5| Long | Frequent | Long | Frequent

 | | Nov-Dec |0.0-1.0| >6.0 |Apparent| --- | --- | --- | Long | Frequent

 | | | | | | | | | |

1082A: | | | | | | | | | |

 Millington------| B/D | | | | | | | | |

 | | Jan-Jun |0.0-1.0| >6.0 |Apparent|0.0-0.5| Long | Frequent | Long | Frequent

 | | Nov-Dec |0.0-1.0| >6.0 |Apparent| --- | --- | --- | Long | Frequent

 | | | | | | | | | |

1107A: | | | | | | | | | |

 Sawmill---------| B/D | | | | | | | | |

 | | Jan-Jun |0.0-1.0| >6.0 |Apparent|0.0-0.5| Long | Frequent | Long | Frequent

 | | Nov-Dec |0.0-1.0| >6.0 |Apparent| --- | --- | --- | Long | Frequent

 | | | | | | | | | |
386 Soil Survey of

Table 21.--Water Features--Continued

_____________________________________________________________________________________________________________________

 | | | Water table | | Ponding | Flooding

 | | | depth | | | _______________ ________________________________________________________

 Map symbol |Hydro-| Month | Upper | Lower |Kind of |Surface| Duration |Frequency | Duration | Frequency

 and soil name |logic | | limit | limit | water | water | | | |

 |group | | | | table | depth | | | | _____________________________________________________________________________________________________________________

 | | | | | | | | | |

1334A: | | | | | | | | | |

 Birds-----------| B/D | | | | | | | | |

 | | Jan-Jun |0.0-1.0| >6.0 |Apparent|0.0-0.5| Long | Frequent | Long | Frequent

 | | Nov-Dec |0.0-1.0| >6.0 |Apparent| --- | --- | --- | Long | Frequent

 | | | | | | | | | |

1400A: | | | | | | | | | |

 Calco-----------| B/D | | | | | | | | |

 | | Jan-Jun |0.0-1.0| >6.0 |Apparent|0.0-0.5| Long | Frequent | Brief | Frequent

 | | Nov-Dec |0.0-1.0| >6.0 |Apparent|0.0-0.5| Long | Frequent | Brief | Frequent

 | | | | | | | | | |

1654A: | | | | | | | | | |

 Moline----------| D | | | | | | | | |

 | | Jan-Jun |0.0-1.0| >6.0 |Apparent|0.0-0.5| Long | Frequent | Long | Frequent

 | | Nov-Dec |0.0-1.0| >6.0 |Apparent| --- | --- | --- | Long | Frequent

 | | | | | | | | | |

3074A: | | | | | | | | | |

 Radford---------| B | | | | | | | | |

 | | Jan-May |1.0-2.0| >6.0 |Apparent| --- | --- | --- | Brief | Frequent

 | | June | --- | --- | --- | --- | --- | --- | Brief | Frequent

 | | Nov-Dec | --- | --- | --- | --- | --- | --- | Brief | Frequent

 | | | | | | | | | |

3076A: | | | | | | | | | |

 Otter-----------| B/D | | | | | | | | |

 | | Jan-May |0.0-1.0| >6.0 |Apparent|0.0-0.5| Brief | Frequent | Brief | Frequent

 | | June | --- | --- | --- | --- | --- | --- | Brief | Frequent

 | | Nov-Dec | --- | --- | --- | --- | --- | --- | Brief | Frequent

 | | | | | | | | | |

3082A: | | | | | | | | | |

 Millington------| B/D | | | | | | | | |

 | | Jan-May |0.0-1.0| >6.0 |Apparent| --- | --- | --- | Brief | Frequent

 | | June | --- | --- | --- | --- | --- | --- | Brief | Frequent

 | | Nov-Dec | --- | --- | --- | --- | --- | --- | Brief | Frequent

 | | | | | | | | | |

3083A: | | | | | | | | | |

 Wabash----------| D | | | | | | | | |

 | | Jan-May |0.0-1.0| >6.0 |Apparent|0.0-0.5| Brief |Occasional| Brief | Frequent

 | | June | --- | --- | --- | --- | --- | --- | Brief | Frequent

 | | Nov-Dec | --- | --- | --- | --- | --- | --- | Brief | Frequent

 | | | | | | | | | |

3107A: | | | | | | | | | |

 Sawmill---------| B/D | | | | | | | | |

 | | Jan-May |0.0-2.0| >6.0 |Apparent| --- | --- | --- | Brief | Frequent

 | | June | --- | --- | --- | --- | --- | --- | Brief | Frequent

 | | Nov-Dec | --- | --- | --- | --- | --- | --- | Brief | Frequent

 | | | | | | | | | |

3239A: | | | | | | | | | |

 Dorchester------| B | | | | | | | | |

 | | January | --- | --- | --- | --- | --- | --- | Brief | Frequent

 | | Feb-Apr |4.0-6.0| >6.0 |Apparent| --- | --- | --- | Brief | Frequent

 | | May-Jun | --- | --- | --- | --- | --- | --- | Brief | Frequent

 | | Nov-Dec | --- | --- | --- | --- | --- | --- | Brief | Frequent

 | | | | | | | | | |

3400A: | | | | | | | | | |

 Calco-----------| B/D | | | | | | | | |

 | | Jan-May |0.0-1.0| >6.0 |Apparent|0.0-0.5|Very brief|Occasional| Brief | Frequent

 | | June | --- | --- | --- | --- | --- | --- | Brief | Frequent

 | | Nov-Dec | --- | --- | --- | --- | --- | --- | Brief | Frequent

 | | | | | | | | | |

3415A: | | | | | | | | | |

 Orion-----------| C | | | | | | | | |

 | | Jan-May |1.0-2.0| >6.0 |Apparent| --- | --- | --- | Brief | Frequent

 | | June | --- | --- | --- | --- | --- | --- | Brief | Frequent

 | | Nov-Dec | --- | --- | --- | --- | --- | --- | Brief | Frequent

 | | | | | | | | | |
Rock Island County, Illinois 387

Table 21.--Water Features--Continued

_____________________________________________________________________________________________________________________

 | | | Water table | | Ponding | Flooding

 | | | depth | | | _______________ ________________________________________________________

 Map symbol |Hydro-| Month | Upper | Lower |Kind of |Surface| Duration |Frequency | Duration | Frequency

 and soil name |logic | | limit | limit | water | water | | | |

 |group | | | | table | depth | | | | _____________________________________________________________________________________________________________________

 | | | | | | | | | |

3428A: | | | | | | | | | |

 Coffeen---------| B | | | | | | | | |

 | | Jan-May |1.0-2.0| >6.0 |Apparent| --- | --- | --- | Brief | Frequent

 | | June | --- | --- | --- | --- | --- | --- | Brief | Frequent

 | | Nov-Dec | --- | --- | --- | --- | --- | --- | Brief | Frequent

 | | | | | | | | | |

3451A: | | | | | | | | | |

 Lawson----------| C | | | | | | | | |

 | | Jan-May |1.0-2.0| >6.0 |Apparent| --- | --- | --- | Brief | Frequent

 | | June | --- | --- | --- | --- | --- | --- | Brief | Frequent

 | | Nov-Dec | --- | --- | --- | --- | --- | --- | Brief | Frequent

 | | | | | | | | | |

3646L: | | | | | | | | | |

 Fluvaquents-----| C | | | | | | | | |

 | | Jan-Jun |0.0-1.0| >6.0 |Apparent|0.0-0.5| Long | Frequent | Long | Frequent

 | | Jul-Oct |0.0-1.0| >6.0 |Apparent| --- | --- | --- | --- | ---

 | | Nov-Dec |0.0-1.0| >6.0 |Apparent| --- | --- | --- | Long | Frequent

 | | | | | | | | | |

7076A: | | | | | | | | | |

 Otter-----------| B/D | | | | | | | | |

 | | Jan-May |0.0-1.0| >6.0 |Apparent|0.0-0.5| Brief | Frequent | Very brief | Rare

 | | June | --- | --- | --- | --- | --- | --- | Very brief | Rare

 | | Nov-Dec | --- | --- | --- | --- | --- | --- | Very brief | Rare

 | | | | | | | | | |

7083A: | | | | | | | | | |

 Wabash----------| D | | | | | | | | |

 | | Jan-May |0.0-1.0| >6.0 |Apparent|0.0-0.5| Brief |Occasional| Brief | Rare

 | | June | --- | --- | --- | --- | --- | --- | Brief | Rare

 | | Nov-Dec | --- | --- | --- | --- | --- | --- | Brief | Rare

 | | | | | | | | | |

7107A: | | | | | | | | | |

 Sawmill---------| B/D | | | | | | | | |

 | | Jan-May |0.0-2.0| >6.0 |Apparent|0.0-0.5| Brief |Occasional| Very brief | Rare

 | | June | --- | --- | --- | --- | --- | --- | Very brief | Rare

 | | Nov-Dec | --- | --- | --- | --- | --- | --- | Very brief | Rare

 | | | | | | | | | |

7239A: | | | | | | | | | |

 Dorchester------| B | | | | | | | | |

 | | January | --- | --- | --- | --- | --- | --- | Very brief | Rare

 | | Feb-Apr |4.0-6.0| >6.0 |Apparent| --- | --- | --- | Very brief | Rare

 | | May-Jun | --- | --- | --- | --- | --- | --- | Very brief | Rare

 | | Nov-Dec | --- | --- | --- | --- | --- | --- | Very brief | Rare

 | | | | | | | | | |

7304A: | | | | | | | | | |

 Landes----------| B | | | | | | | | |

 | | January | --- | --- | --- | --- | --- | --- | Very brief | Rare

 | | Feb-Apr |4.0-6.0| >6.0 |Apparent| --- | --- | --- | Very brief | Rare

 | | May-Jun | --- | --- | --- | --- | --- | --- | Very brief | Rare

 | | Nov-Dec | --- | --- | --- | --- | --- | --- | Very brief | Rare

 | | | | | | | | | |

7415A: | | | | | | | | | |

 Orion-----------| C | | | | | | | | |

 | | Jan-May |1.0-3.0| >6.0 |Apparent| --- | --- | --- | Very brief | Rare

 | | June | --- | --- | --- | --- | --- | --- | Very brief | Rare

 | | Nov-Dec | --- | --- | --- | --- | --- | --- | Very brief | Rare

 | | | | | | | | | |

7428A: | | | | | | | | | |

 Coffeen---------| B | | | | | | | | |

 | | Jan-May |1.0-2.0| >6.0 |Apparent| --- | --- | --- | Very brief | Rare

 | | June | --- | --- | --- | --- | --- | --- | Very brief | Rare

 | | Nov-Dec | --- | --- | --- | --- | --- | --- | Very brief | Rare

 | | | | | | | | | |
388 Soil Survey of

Table 21.--Water Features--Continued

_____________________________________________________________________________________________________________________

 | | | Water table | | Ponding | Flooding

 | | | depth | | | _______________ ________________________________________________________

 Map symbol |Hydro-| Month | Upper | Lower |Kind of |Surface| Duration |Frequency | Duration | Frequency

 and soil name |logic | | limit | limit | water | water | | | |

 |group | | | | table | depth | | | | _____________________________________________________________________________________________________________________

 | | | | | | | | | |

7451A: | | | | | | | | | |

 Lawson----------| B | | | | | | | | |

 | | Jan-May |1.0-2.0| >6.0 |Apparent| --- | --- | --- | Very brief | Rare

 | | June | --- | --- | --- | --- | --- | --- | Very brief | Rare

 | | Nov-Dec | --- | --- | --- | --- | --- | --- | Very brief | Rare

 | | | | | | | | | |

7654A: | | | | | | | | | |

 Moline----------| D | | | | | | | | |

 | | Jan-May |0.0-1.0| >6.0 |Apparent|0.0-1.0| Brief | Frequent | Very brief | Rare

 | | June | --- | --- | --- | --- | --- | --- | Very brief | Rare

 | | Nov-Dec | --- | --- | --- | --- | --- | --- | Very brief | Rare

 | | | | | | | | | |

8107+: | | | | | | | | | |

 Sawmill---------| B/D | | | | | | | | |

 | | Jan-May |0.0-2.0| >6.0 |Apparent|0.0-0.5| Brief |Occasional| Brief |Occasional

 | | June | --- | --- | --- | --- | --- | --- | Brief |Occasional

 | | Nov-Dec | --- | --- | --- | --- | --- | --- | Brief |Occasional

 | | | | | | | | | |

8302A: | | | | | | | | | |

 Ambraw----------| B/D | | | | | | | | |

 | | Jan-May |0.0-1.0| >6.0 |Apparent|0.0-0.5| Brief |Occasional| Brief |Occasional

 | | June | --- | --- | --- | --- | --- | --- | Brief |Occasional

 | | Nov-Dec | --- | --- | --- | --- | --- | --- | Brief |Occasional

 | | | | | | | | | |

8400A: | | | | | | | | | |

 Calco-----------| B/D | | | | | | | | |

 | | Jan-May |0.0-1.0| >6.0 |Apparent|0.0-0.5| Brief |Occasional| Brief |Occasional

 | | June | --- | --- | --- | --- | --- | --- | Brief |Occasional

 | | Nov-Dec | --- | --- | --- | --- | --- | --- | Brief |Occasional

 | | | | | | | | | |

8404A: | | | | | | | | | |

 Titus-----------| B | | | | | | | | |

 | | Jan-May |0.0-1.0| >6.0 |Apparent|0.0-0.5| Brief |Occasional| Brief |Occasional

 | | June | --- | --- | --- | --- | --- | --- | Brief |Occasional

 | | Nov-Dec | --- | --- | --- | --- | --- | --- | Brief |Occasional

 | | | | | | | | | | ____________________________________________________________________________________________________________________
Rock Island County, Illinois 389

Table 22.--Soil Features

(See text for definitions of terms used in this table. Absence of an entry indicates that

 the feature is not a concern or that data were not estimated)

_________________________________________________________________________________________

 | Restrictive layer | | Risk of corrosion

 Map symbol |_________________________| Potential |_________________________

 and soil name | | Depth | for | Uncoated |

 | Kind |to top |frost action| steel | Concrete _________________________________________________________________________________________

 | | In | | |

 | | | | |

8D2, 8D3, 8F, 8F3: | | | | |

 Hickory----------------| --- | --- |Moderate |Moderate |Moderate

 | | | | |

19C3, 19D, 19D3, 19F, | | | | |

 19F3: | | | | |

 Sylvan----------------| --- | --- |High |Moderate |Moderate

 | | | | |

45A: | | | | |

 Denny------------------| --- | --- |High |High |Moderate

 | | | | |

51A: | | | | |

 Muscatune--------------| --- | --- |High |High |Moderate

 | | | | |

61A: | | | | |

 Atterberry-------------| --- | --- |High |High |Moderate

 | | | | |

68A: | | | | |

 Sable------------------| --- | --- |High |High |Low

 | | | | |

86B, 86C2: | | | | |

 Osco-------------------| --- | --- |High |Moderate |Moderate

 | | | | |

87A, 87C2: | | | | |

 Dickinson--------------| --- | --- |Moderate |Low |Moderate

 | | | | |

88A: | | | | |

 Sparta-----------------| --- | --- |Low |Low |Moderate

 | | | | |

172A: | | | | |

 Hoopeston--------------| --- | --- |High |Low |Moderate

 | | | | |

212B: | | | | |

 Thebes-----------------| --- | --- |High |Moderate |Moderate

 | | | | |

250D: | | | | |

 Velma------------------| --- | --- |Moderate |High |High

 | | | | |

261A: | | | | |

 Niota------------------| --- | --- |High |High |High

 | | | | |

274B, 274B2, 274C2, | | | | |

 274D2: | | | | |

 Seaton----------------| --- | --- |High |Low |Moderate

 | | | | |

275A: | | | | |

 Joy--------------------| --- | --- |High |High |Moderate

 | | | | |

278A: | | | | |

 Stronghurst------------| --- | --- |High |High |Moderate

 | | | | |

279A, 279B: | | | | |

 Rozetta----------------| --- | --- |High |Moderate |Moderate

 | | | | |

280B, 280B2, 280C2, | | | | |

 280C3: | | | | |

 Fayette---------------| --- | --- |High |Moderate |Moderate

 | | | | |

317A: | | | | |

 Millsdale--------------|Bedrock (lithic) | 20-40 |High |High |Low

 | | | | |
390 Soil Survey of

Table 22.--Soil Features--Continued

_________________________________________________________________________________________

 | Restrictive layer | | Risk of corrosion

 Map symbol |_________________________| Potential |_________________________

 and soil name | | Depth | for | Uncoated |

 | Kind |to top |frost action| steel | Concrete _________________________________________________________________________________________

 | | In | | |

 | | | | |

430A, 430B: | | | | |

 Raddle-----------------| --- | --- |High |Moderate |Moderate

 | | | | |

525A: | | | | |

 Joslin-----------------|Bedrock (lithic) | 40-60 |Moderate |Moderate |Moderate

 | | | | |

567C2, 567D2: | | | | |

 Elkhart----------------| --- | --- |High |Moderate |Moderate

 | | | | |

570B, 570C3, 570D3: | | | | |

 Martinsville-----------| --- | --- |Moderate |Moderate |Moderate

 | | | | |

647A: | | | | |

 Lawler-----------------| --- | --- |High |High |Moderate

 | | | | |

671A, 671B: | | | | |

 Biggsville-------------| --- | --- |High |Low |Moderate

 | | | | |

675A, 675B: | | | | |

 Greenbush--------------| --- | --- |High |Moderate |Moderate

 | | | | |

689B, 689D: | | | | |

 Coloma-----------------| --- | --- |Low |Low |Moderate

 | | | | |

705A: | | | | |

 Buckhart---------------| --- | --- |High |Moderate |Moderate

 | | | | |

727A: | | | | |

 Waukee-----------------| --- | --- |Moderate |Low |Moderate

 | | | | |

741F: | | | | |

 Oakville---------------| --- | --- |Low |Low |Moderate

 | | | | |

763A, 763B: | | | | |

 Joslin-----------------| --- | --- |Moderate |High |Moderate

 | | | | |

764A, 764C: | | | | |

 Coyne------------------| --- | --- |Moderate |Moderate |Moderate

 | | | | |

774A: | | | | |

 Saude------------------| --- | --- |Moderate |Low |Moderate

 | | | | |

800C. | | | | |

 Psamments | | | | |

 | | | | |

802B: | | | | |

 Orthents---------------| --- | --- |Moderate |Moderate |Moderate

 | | | | |

864. | | | | |

 Pits, quarries | | | | |

 | | | | |

865. | | | | |

 Pits, gravel | | | | |

 | | | | |

898F3, 898G: | | | | |

 Hickory----------------| --- | --- |Moderate |Moderate |Moderate

 | | | | |

 Sylvan-----------------| --- | --- |High |Moderate |Moderate

 | | | | |
Rock Island County, Illinois 391

Table 22.--Soil Features--Continued

_________________________________________________________________________________________

 | Restrictive layer | | Risk of corrosion

 Map symbol |_________________________| Potential |_________________________

 and soil name | | Depth | for | Uncoated |

 | Kind |to top |frost action| steel | Concrete _________________________________________________________________________________________

 | | In | | |

 | | | | |

913D2, 913F, 913G: | | | | |

 Marseilles-------------|Bedrock | 20-40 |High |High |Moderate

 | (paralithic) | | | |

 | | | | |

 Hickory----------------| --- | --- |Moderate |Moderate |Moderate

 | | | | |

917C2, 917D2: | | | | |

 Oakville---------------| --- | --- |Low |Low |Moderate

 | | | | |

 Tell-------------------| --- | --- |High |Moderate |Moderate

 | | | | |

943D2, 943F2: | | | | |

 Seaton-----------------| --- | --- |High |Low |Moderate

 | | | | |

 Timula-----------------| --- | --- |High |Low |Low

 | | | | |

944D2: | | | | |

 Velma------------------| --- | --- |Moderate |High |High

 | | | | |

 Coatsburg--------------| --- | --- |High |High |Moderate

 | | | | |

946D3, 946F3: | | | | |

 Hickory----------------| --- | --- |Moderate |Moderate |Moderate

 | | | | |

 Atlas------------------| --- | --- |High |High |Moderate

 | | | | |

959G: | | | | |

 Strawn-----------------| --- | --- |Moderate |Moderate |Moderate

 | | | | |

 Chute------------------| --- | --- |Low |Low |Low

 | | | | |

960D2, 960D3, 960F: | | | | |

 Hickory----------------| --- | --- |Moderate |Moderate |Moderate

 | | | | |

 Sylvan-----------------| --- | --- |High |Moderate |Moderate

 | | | | |

 Fayette----------------| --- | --- |High |Moderate |Moderate

 | | | | |

961A: | | | | |

 Burkhardt--------------| --- | --- |Low |Low |High

 | | | | |

 Saude------------------| --- | --- |Moderate |Low |Moderate

 | | | | |

962F: | | | | |

 Sylvan-----------------| --- | --- |High |Moderate |Moderate

 | | | | |

 Bold-------------------| --- | --- |High |Low |Low

 | | | | |

1076A: | | | | |

 Otter------------------| --- | --- |High |High |Low

 | | | | |

1082A: | | | | |

 Millington-------------| --- | --- |High |High |Low

 | | | | |

1107A: | | | | |

 Sawmill----------------| --- | --- |High |High |Low

 | | | | |

1334A: | | | | |

 Birds------------------| --- | --- |High |Moderate |Low

 | | | | |

1400A: | | | | |

 Calco------------------| --- | --- |High |High |Low

 | | | | |
392 Soil Survey of

Table 22.--Soil Features--Continued

_________________________________________________________________________________________

 | Restrictive layer | | Risk of corrosion

 Map symbol |_________________________| Potential |_________________________

 and soil name | | Depth | for | Uncoated |

 | Kind |to top |frost action| steel | Concrete _________________________________________________________________________________________

 | | In | | |

 | | | | |

1654A: | | | | |

 Moline-----------------| --- | --- |High |High |Low

 | | | | |

3074A: | | | | |

 Radford----------------| --- | --- |High |High |Moderate

 | | | | |

3076A: | | | | |

 Otter------------------| --- | --- |High |High |Low

 | | | | |

3082A: | | | | |

 Millington-------------| --- | --- |High |High |Low

 | | | | |

3083A: | | | | |

 Wabash-----------------| --- | --- |High |High |Moderate

 | | | | |

3107A: | | | | |

 Sawmill----------------| --- | --- |High |High |Low

 | | | | |

3239A: | | | | |

 Dorchester-------------| --- | --- |High |High |Low

 | | | | |

3400A: | | | | |

 Calco------------------| --- | --- |High |High |Low

 | | | | |

3415A: | | | | |

 Orion------------------| --- | --- |High |High |Low

 | | | | |

3428A: | | | | |

 Coffeen----------------| --- | --- |High |High |Moderate

 | | | | |

3451A: | | | | |

 Lawson-----------------| --- | --- |High |Moderate |Low

 | | | | |

3646L: | | | | |

 Fluvaquents------------| --- | --- |High |Moderate |Low

 | | | | |

7076A: | | | | |

 Otter------------------| --- | --- |High |High |Low

 | | | | |

7083A: | | | | |

 Wabash-----------------| --- | --- |High |High |Moderate

 | | | | |

7107A: | | | | |

 Sawmill----------------| --- | --- |High |High |Low

 | | | | |

7239A: | | | | |

 Dorchester-------------| --- | --- |High |High |Low

 | | | | |

7304A: | | | | |

 Landes-----------------| --- | --- |Moderate |Low |Low

 | | | | |

7415A: | | | | |

 Orion------------------| --- | --- |High |High |Low

 | | | | |

7428A: | | | | |

 Coffeen----------------| --- | --- |High |High |Moderate

 | | | | |

7451A: | | | | |

 Lawson-----------------| --- | --- |High |Moderate |Low

 | | | | |

7654A: | | | | |

 Moline-----------------| --- | --- |High |High |Low

 | | | | |
Rock Island County, Illinois 393

Table 22.--Soil Features--Continued

_________________________________________________________________________________________

 | Restrictive layer | | Risk of corrosion

 Map symbol |_________________________| Potential |_________________________

 and soil name | | Depth | for | Uncoated |

 | Kind |to top |frost action| steel | Concrete _________________________________________________________________________________________

 | | In | | |

 | | | | |

8107+: | | | | |

 Sawmill----------------| --- | --- |High |High |Low

 | | | | |

8302A: | | | | |

 Ambraw-----------------| --- | --- |High |High |Moderate

 | | | | |

8400A: | | | | |

 Calco------------------| --- | --- |High |High |Low

 | | | | |

8404A: | | | | |

 Titus------------------| --- | --- |High |High |Low

 | | | | | _________________________________________________________________________________________
Printing Soil Survey Maps 

The soil survey maps were made at a scale of 1:12000 and were designed to be

used at that scale. To print the maps at 1:12000 scale, set the view to Actual

Size from the View pull down menu.

Using the pan tool, go to the area you would like to print. Select the Graphic

Selection Tool by holding down the Text Selection Tool button and clicking on the

Graphic Selection Tool button.
Then using the Graphic Selection Tool drag a box around the area you would like

to print. Note dashed lines forming a box around area to print.

Select File Print. The Print Range will be set to Selected graphic. Click OK and

the map will be sent to the printer.

Descriptions of Special Features

Name Description Label

Blowout A small saucer-, cup-, or trough-shaped hollow or depression formed

by wind erosion on a preexisting sand deposit. Typically 0.2 acre to

2.0 acres.

BLO

Borrow pit An open excavation from which soil and underlying material have

been removed, usually for construction purposes. Typically 0.2 acre

to 2.0 acres.

BPI

Calcareous spot An area in which the soil contains carbonates in the surface layer.

The surface layer of the named soils in the surrounding map unit is

noncalcareous. Typically 0.5 acre to 2.0 acres.

CSP

Clay spot A spot where the surface layer is silty clay or clay in areas where the

surface layer of the soils in the surrounding map unit is sandy loam,

loam, silt loam, or coarser. Typically 0.2 acre to 2.0 acres.

CLA

Depression, closed A shallow, saucer-shaped area that is slightly lower on the landscape

than the surrounding area and that does not have a natural outlet for

surface drainage. Typically 0.2 acre to 2.0 acres.

DEP

Disturbed soil spot An area in which the soil has been removed and materials

redeposited as a result of human activity. Typically 0.25 acre to 2.0

acres.

DSS

Dumps Areas of nonsoil material that support little or no vegetation.

Typically 0.5 acre to 2.0 acres.

DMP

Escarpment, bedrock A relatively continuous and steep slope or cliff, produced by erosion

or faulting, that breaks the general continuity of more gently sloping

land surfaces. Exposed material is hard or soft bedrock.

ESB

Escarpment, nonbedrock A relatively continuous and steep slope or cliff, generally produced

by erosion but in some places produced by faulting, that breaks the

continuity of more gently sloping land surfaces. Exposed earthy

material is nonsoil or very shallow soil.

ESO

Glacial till spot An exposure of glacial till at the surface of the earth. Typically 0.25

acre to 2.0 acres.

GLA

Gravel pit An open excavation from which soil and underlying material have

been removed and used, without crushing, as a source of sand or

gravel. Typically 0.2 acre to 2.0 acres.

GPI

Gravelly spot A spot where the surface layer has more than 35 percent, by volume,

rock fragments that are mostly less than 3 inches in diameter in an

area that has less than 15 percent rock fragments. Typically 0.2 acre

to 2.0 acres.

GRA
Name Description Label

Gray spot A spot in which the surface layer is gray in areas where the

subsurface layer of the named soils in the surrounding map unit are

darker. Typically 0.25 acre to 2.0 acres.

GSP

Gully A small channel with steep sides cut by running water through which

water ordinarily runs only after a rain or after melting of snow or ice.

It generally is an obstacle to wheeled vehicles and is too deep to be

obliterated by ordinary tillage.

GUL

Iron bog An accumulation of iron in the form of nodules, concretions, or soft

masses on the surface or near the surface of soils. Typically 0.2 acre

to 2.0 acres.

BFE

Landfill An area of accumulated waste products of human habitation, either

above or below natural ground level. Typically 0.2 acre to 2.0 acres.

LDF

Levee An embankment that confines or controls water, especially one built

along the banks of a river to prevent overflow onto lowlands.

LVS

Marsh or swamp A water-saturated, very poorly drained area that is intermittently or

permanently covered by water. Sedges, cattails, and rushes are the

dominant vegetation in marshes, and trees or shrubs are the dominant

vegetation in swamps. Typically 0.2 acre to 2.0 acres.

MAR

Mine or quarry An open excavation from which soil and underlying material have

been removed and in which bedrock is exposed. Also denotes surface

openings to underground mines. Typically 0.2 acre to 2.0 acres.

MPI

Mine subsided area An area that is lower than the soils in the surrounding map unit

because of subsurface coal mining. Typically 0.25 acre to 3.0 acres.

MSA

Miscellaneous water A small, constructed body of water that is used for industrial,

sanitary, or mining applications and that contains water most of the

year. Typically 0.2 acre to 2.0 acres.

MIS

Muck spot An area that occurs within an area of poorly drained or very poorly

drained soil and that has a histic epipedon or an organic surface

layer. The symbol is used only in map units consisting of mineral

soil. Typically 0.2 acre to 2.0 acres.

MUC

Oil brine spot An area of soil that has been severely damaged by the accumulation

of oil brine, with or without liquid oily wastes. The area is typically

barren but may have a vegetative cover of salt-tolerant plants.

Typically 0.2 acre to 2.0 acres.

OBS

Perennial water A small, natural or constructed lake, pond, or pit that contains water

most of the year. Typically 0.2 acre to 2.0 acres.

WAT
Name Description Label

Rock outcrop An exposure of bedrock at the surface of the earth. Not used where

the named soils of the surrounding map unit are shallow over

bedrock or where “Rock outcrop” is a named component of the map

unit. Typically 0.2 acre to 2.0 acres.

ROC

Saline spot An area where the surface layer has an electrical conductivity of 8

mmhos/cm-l more than the surface layer of the named soils in the

surrounding map unit. The surface layer of the surrounding soils has

an electrical conductivity of 2 mmhos/cm-l or less. Typically 0.2

acre to 2.0 acres.

SAL

Sandy spot A spot where the surface layer is loamy fine sand or coarser in areas

where the surface layer of the named soils in the surrounding map

unit is very fine sandy loam or finer. Typically 0.2 acre to 2.0 acres.

SAN

Severely eroded spot An area where, on the average, 75 percent or more of the original

surface layer has been lost because of accelerated erosion. Not used

in map units in which “severely eroded,” “very severely eroded,” or

“gullied” is part of the map unit name. Typically 0.2 acre to 2.0

acres.

ERO

Short steep slope A narrow area of soil having slopes that are at least two slope classes

steeper than the slope class of the surrounding map unit.

SLP

Sinkhole A closed depression formed either by solution of the surficial rock or

by collapse of underlying caves. Typically 0.2 acre to 2.0 acres.

SNK

Slide or slip A prominent landform scar or ridge caused by fairly recent mass

movement or descent of earthy material resulting from failure of

earth or rock under shear stress along one or several surfaces.

Typically 0.2 acre to 2.0 acres.

SLI

Sodic spot An area where the surface layer has a sodium adsorption ratio that is

at least 10 more than that of the surface layer of the named soils in

the surrounding map unit. The surface layer of the surrounding soils

has a sodium adsorption ratio of 5 or less. Typically 0.2 acre to 2.0

acres.

SOD

Spoil area A pile of earthy materials, either smoothed or uneven, resulting from

human activity. Typically 0.2 acre to 2.0 acres.

SPO

Stony spot A spot where 0.01 to 0.1 percent of the surface cover is rock

fragments that are more than 10 inches in diameter in areas where

the surrounding soil has no surface stones. Typically 0.2 acre to 2.0

acres.

STN

Unclassified water A small, natural or manmade lake, pond, or pit that contains water,

of an unspecified nature, most of the year. Typically 0.2 acre to 2.0

acres.

UWT
Name Description Label

Very stony spot A spot where 0.1 to 3.0 percent of the surface cover is rock

fragments that are more than 10 inches in diameter in areas where

the surface cover of the surrounding soil is less than 0.01 percent

stones. Typically 0.2 acre to 2.0 acres.

STV

Wet depression A shallow, concave area within an area of poorly drained or very

poorly drained soils in which water is ponded for intermittent

periods. The concave area is saturated for appreciably longer periods

of time than the surrounding soil. Typically 0.2 acre to 2.0 acres.

WDP

Wet spot A somewhat poorly drained to very poorly drained area that is at

least two drainage classes wetter than the named soils in the

surrounding map unit. Typically 0.2 acres to 2.0 acres.

WET