Wiegel Soil Survey Iowa.pdf

United States Department of Agriculture

Natural Resources Conservation Service

A product 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 participants

Custom Soil Resource Report for

Wapello County, Iowa Wiegel Group Wapello County Iowa

Preface Soil surveys contain information that affects land use planning in survey areas. They highlight soil limitations that affect various land uses and provide information about the properties of the soils in the survey areas. Soil surveys are designed for many different users, including farmers, ranchers, foresters, agronomists, urban planners, community officials, engineers, developers, builders, and home buyers. Also, conservationists, teachers, students, and specialists in recreation, waste disposal, and pollution control can use the surveys to help them understand, protect, or enhance the environment. Various land use regulations of Federal, State, and local governments may impose special restrictions on land use or land treatment. Soil surveys identify soil properties that are used in making various land use or land treatment decisions. The information is 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 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. The National Cooperative Soil Survey is 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 (NRCS) has leadership for the Federal part of the National Cooperative Soil Survey. Information about soils is updated periodically. Updated information is available through the NRCS Soil Data Mart Web site or the NRCS Web Soil Survey. The Soil Data Mart is the data storage site for the official soil survey information. The U.S. Department of Agriculture (USDA) prohibits discrimination in all its programs and activities on the basis of race, color, national origin, age, disability, and where applicable, sex, marital status, familial status, parental status, religion, sexual orientation, genetic information, political beliefs, reprisal, or because all or a part of an individual's income is derived from any public assistance program. (Not all prohibited bases apply to all programs.) Persons with disabilities who require alternative means for communication of program information (Braille, large print, audiotape, etc.) should contact USDA's TARGET Center at (202) 720-2600 (voice and TDD). To file a complaint of discrimination, write to USDA, Director, Office of Civil Rights, 1400 Independence Avenue, S.W., Washington, D.C. 20250-9410 or call (800) 795-3272 (voice) or (202) 720-6382 (TDD). USDA is an equal opportunity provider and employer.

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Contents Preface....................................................................................................................2 How Soil Surveys Are Made..................................................................................5 Soil Map..................................................................................................................7 Soil Map................................................................................................................8 Legend..................................................................................................................9 Map Unit Legend................................................................................................10 Map Unit Descriptions........................................................................................12 Wapello County, Iowa Version date:3/17/2008 11:37:31 AM.........................14 11B—Colo-Ely silty clay loams, 2 to 5 percent slopes................................14 51—Vesser silt loam, 0 to 2 percent slopes................................................15 54—Zook silty clay loam, 0 to 2 percent slopes..........................................16 58G—Douds soils, 18 to 40 percent slopes................................................17 93D2—Shelby-Adair clay loams, 9 to 14 percent slopes, moderately eroded...................................................................................................18 130—Belinda silt loam, 0 to 2 percent slopes.............................................19 131B—Pershing silt loam, 2 to 5 percent slopes.........................................20 133—Colo silty clay loam, 0 to 2 percent slopes.........................................21 192C2—Adair clay loam, 5 to 9 percent slopes, moderately eroded..........22 192D2—Adair clay loam, 9 to 14 percent slopes, moderately eroded........23 220—Nodaway silt loam, 0 to 2 percent slopes..........................................24 222C2—Clarinda silty clay loam, 5 to 9 percent slopes, moderately eroded...................................................................................................25 223C2—Rinda silty clay loam, 5 to 9 percent slopes, moderately eroded...................................................................................................26 269—Humeston silt loam, 0 to 2 percent slopes.........................................26 276C2—Ladoga-Hedrick silt loams, 5 to 9 percent slopes, moderately eroded...................................................................................................27 279—Taintor silty clay loam, 0 to 2 percent slopes.....................................29 280—Mahaska silty clay loam, 0 to 2 percent slopes.................................30 281B—Otley silty clay loam, 2 to 5 percent slopes.....................................31 281C—Otley silty clay loam, 5 to 9 percent slopes.....................................32 362—Haig silt loam, 0 to 2 percent slopes..................................................32 364B—Grundy silt loam, 2 to 5 percent slopes...........................................33 451D2—Caleb loam, 7 to 14 percent slopes, moderately eroded...............34 453—Tuskeego silt loam, 0 to 2 percent slopes.........................................35 581C2—Otley-Nira silty clay loams, 5 to 9 percent slopes, moderately eroded...................................................................................................36 592C2—Mystic silt loam, 5 to 9 percent slopes, moderately eroded..........38 592D2—Mystic silt loam, 9 to 14 percent slopes, moderately eroded........38 594D2—Galland loam, 9 to 14 percent slopes, moderately eroded............39 688—Koszta silt loam, 0 to 2 percent slopes..............................................40 730B—Nodaway-Cantril complex, 2 to 5 percent slopes............................41 731C2—Pershing silty clay loam, 5 to 9 percent slopes, moderately eroded...................................................................................................43

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Custom Soil Resource Report 792D2—Armstrong loam, 9 to 14 percent slopes, moderately eroded.......44 876B—Ladoga silt loam, benches, 2 to 5 percent slopes...........................45 876C—Ladoga silt loam, benches, 5 to 9 percent slopes...........................45 876C2—Ladoga silt loam, benches, 5 to 9 percent slopes, moderately eroded...................................................................................................46 880B—Clinton silt loam, benches, 2 to 5 percent slopes............................47 880C2—Clinton silt loam, benches, 5 to 9 percent slopes, moderately eroded...................................................................................................47 881B—Otley silty clay loam, benches, 2 to 5 percent slopes......................48 881C2—Otley silty clay loam, benches, 5 to 9 percent slopes, moderately eroded................................................................................49 1220—Nodaway silt loam, channeled, 0 to 2 percent slopes......................50 W—Water....................................................................................................51 Soil Information for All Uses...............................................................................52 Suitabilities and Limitations for Use....................................................................52 Land Classifications........................................................................................52 Farmland Classification (Farmland Classification)......................................52 Vegetative Productivity...................................................................................57 Iowa Corn Suitability Rating (Wiegel CSR).................................................57 Yields of Non-Irrigated Crops (Map Unit): Corn (Bu) (Wiegel Yield NonIrrigation Crops)....................................................................................64 References............................................................................................................70 Glossary................................................................................................................72

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How Soil Surveys Are Made Soil surveys are made to provide information about the soils and miscellaneous areas in a specific area. They include a description of the soils and miscellaneous areas and their location on the landscape and tables that show soil properties and limitations affecting various 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 observed and described many soil profiles. A soil profile 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 or from the surface down to bedrock. The unconsolidated material is devoid of roots and other living organisms and has not been changed by other biological activity. Currently, soils are mapped according to the boundaries of major land resource areas (MLRAs). MLRAs are geographically associated land resource units that share common characteristics related to physiography, geology, climate, water resources, soils, biological resources, and land uses (USDA, 2006). Soil survey areas typically consist of parts of one or more MLRA. The soils and miscellaneous areas in a survey area occur 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 of landform or with a segment of the landform. By observing the soils and miscellaneous areas in the survey area and relating their position to specific segments of the landform, a soil scientist develops a concept, or model, of how they were formed. Thus, during mapping, this model enables the soil scientist to predict with a considerable degree of accuracy the kind of soil or miscellaneous area at a specific location on the landscape. Commonly, individual soils on the landscape merge into one another as their characteristics gradually change. To construct an accurate soil map, however, soil scientists must determine the boundaries between the soils. They can observe only a limited number of soil profiles. Nevertheless, these observations, supplemented by an understanding of the soil-vegetation-landscape relationship, are sufficient to verify predictions of the kinds of soil in an area and to determine the boundaries. Soil scientists recorded the characteristics of the soil profiles that they studied. They noted soil color, texture, size and shape of soil aggregates, kind and amount of rock fragments, distribution of plant roots, reaction, and other features that enable them to identify soils. After describing the soils in the survey area and determining their properties, the soil scientists assigned the soils to taxonomic classes (units). Taxonomic classes are concepts. Each taxonomic class has a set of soil characteristics with precisely defined limits. The classes are used as a basis for comparison to classify soils systematically. Soil taxonomy, the system of taxonomic classification used in the United States, is based mainly on the kind and character of soil properties and the arrangement of horizons within the profile. After the soil scientists classified and named the soils in the survey area, they compared the

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Custom Soil Resource Report individual soils with similar soils in the same taxonomic class in other areas so that they could confirm data and assemble additional data based on experience and research. While a soil survey is in progress, samples of some of the soils in the area generally are collected for laboratory analyses and for engineering tests. Soil scientists interpret the data from these analyses and tests as well as the field-observed characteristics and the soil properties to determine the expected behavior of the soils under different uses. Interpretations for all of the soils are field tested through observation of the soils in different uses and under different levels of management. Some interpretations are modified to fit local conditions, and some new interpretations are developed to meet local needs. Data are assembled from other sources, such as research information, production records, and field experience of specialists. For example, data on crop yields under defined levels of management are assembled from farm records and from field or plot experiments on the same kinds of soil. Predictions about soil behavior are based not only on soil properties but also on such variables as climate and biological activity. Soil conditions are predictable over long periods of time, but they are not predictable from year to year. For example, soil scientists can predict with a fairly high degree of accuracy that a given soil will have a high water table within certain depths in most years, but they cannot predict that a high water table will always be at a specific level in the soil on a specific date. After soil scientists located and identified the significant natural bodies of soil in the survey area, they drew the boundaries of these bodies on aerial photographs and identified each as a specific map unit. Aerial photographs show trees, buildings, fields, roads, and rivers, all of which help in locating boundaries accurately.

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Soil Map The soil map section includes the soil map for the defined area of interest, a list of soil map units on the map and extent of each map unit, and cartographic symbols displayed on the map. Also presented are various metadata about data used to produce the map, and a description of each soil map unit.

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Custom Soil Resource Report Soil Map

4547700

594D2 594D2 W 880C2 880C2 880B 58G 28 1C

B 876

281 B

51

CO HWY H25

279

51 W C ed W 688 220

880C2 592D2

1 ar 220 C

51

45 3

1220

51 269

0 4547100

223C2

2 C

4547100

133

453

2 12

6 27

730B

560400

560700

0

150

300

600

0

500

1,000

2,000

131B

731C2 223C2

730B

130

561000

Meters 900 Feet 3,000

4546500

131B 731C2 223C2

731C2

223 C2

364B 731C2 362 223C2

223 C2 60TH AVE

131B

223C2

4546800

133

re ek

51

792D2

4546500

4548000

451D2

276C2

560100

93D2

4548300

C2 881C2

280

2 792D

192C2 581C2

4547700

11B

222C2

281B 876B 451D2 281C 87 876C2 6C 2 592C2 1 1B 592C2 26 222C2 9

54

133

280 281B

4546800

C2

451D2 876B

9 26

876B

688

281C

561600

51

4548300

60TH AVE

87 6

133

281B

881B 876C 881C2

51

51

133 51 453 451D2

9 26

4548000

54

876C2

4547400

281B 581C2

561300

4548600

561000

4547400

560700

19 2

560400

4548600

560100

561300

561600

Custom Soil Resource Report Legend

MAP LEGEND Very Stony Spot

Area of Interest (AOI) Area of Interest (AOI)

Wet Spot

Soils Soil Map Units Special Point Features

Other Special Line Features Gully

Blowout

Short Steep Slope

Borrow Pit Clay Spot Closed Depression

MAP INFORMATION

Other Political Features Cities

Gravelly Spot

Urban Areas Water Features

Streams and Canals

Marsh

Miscellaneous Water Perennial Water Rock Outcrop Saline Spot Sandy Spot Severely Eroded Spot Sinkhole Slide or Slip Sodic Spot Spoil Area Stony Spot

This product is generated from the USDA-NRCS certified data as of the version date(s) listed below. Soil Survey Area: Wapello County, Iowa Survey Area Data: Version 14, Mar 17, 2008 Date(s) aerial images were photographed:

4/23/1994

Oceans

Lava Flow

Mine or Quarry

Source of Map: Natural Resources Conservation Service Web Soil Survey URL: http://websoilsurvey.nrcs.usda.gov Coordinate System: UTM Zone 15N

Municipalities

Gravel Pit

Landfill

Original soil survey map sheets were prepared at publication scale. Viewing scale and printing scale, however, may vary from the original. Please rely on the bar scale on each map sheet for proper map measurements.

Transportation Rails Roads Interstate Highways US Routes State Highways Local Roads Other Roads

The orthophoto or other base map on which the soil lines were compiled and digitized probably differs from the background imagery displayed on these maps. As a result, some minor shifting of map unit boundaries may be evident.

Custom Soil Resource Report

Map Unit Legend Wapello County, Iowa (IA179) Map Unit Symbol

Map Unit Name

Acres in AOI

Percent of AOI

11B

Colo-Ely silty clay loams, 2 to 5 percent slopes

47.7

6.4%

51

Vesser silt loam, 0 to 2 percent slopes

49.5

6.6%

54

Zook silty clay loam, 0 to 2 percent slopes

2.7

0.4%

58G

Douds soils, 18 to 40 percent slopes

2.4

0.3%

93D2

Shelby-Adair clay loams, 9 to 14 percent slopes, moderately eroded

4.6

0.6%

130

Belinda silt loam, 0 to 2 percent slopes

0.9

0.1%

131B

Pershing silt loam, 2 to 5 percent slopes

18.8

2.5%

133

Colo silty clay loam, 0 to 2 percent slopes

56.3

7.5%

192C2

Adair clay loam, 5 to 9 percent slopes, moderately eroded

5.7

0.8%

192D2

Adair clay loam, 9 to 14 percent slopes, moderately eroded

0.0

0.0%

220

Nodaway silt loam, 0 to 2 percent slopes

35.3

4.7%

222C2

Clarinda silty clay loam, 5 to 9 percent slopes, moderately eroded

2.6

0.3%

223C2

Rinda silty clay loam, 5 to 9 percent slopes, moderately eroded

34.7

4.6%

269

Humeston silt loam, 0 to 2 percent slopes

24.3

3.2%

276C2

Ladoga-Hedrick silt loams, 5 to 9 percent slopes, moderately eroded

40.9

5.4%

279

Taintor silty clay loam, 0 to 2 percent slopes

1.9

0.2%

280

Mahaska silty clay loam, 0 to 2 percent slopes

5.9

0.8%

281B

Otley silty clay loam, 2 to 5 percent slopes

31.8

4.2%

281C

Otley silty clay loam, 5 to 9 percent slopes

41.5

5.5%

362

Haig silt loam, 0 to 2 percent slopes

1.8

0.2%

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Custom Soil Resource Report

Wapello County, Iowa (IA179) Map Unit Symbol

Map Unit Name

364B

Grundy silt loam, 2 to 5 percent slopes

451D2

Caleb loam, 7 to 14 percent slopes, moderately eroded

453

Acres in AOI

Percent of AOI 3.5

0.5%

10.1

1.3%

Tuskeego silt loam, 0 to 2 percent slopes

7.5

1.0%

581C2

Otley-Nira silty clay loams, 5 to 9 percent slopes, moderately eroded

2.9

0.4%

592C2

Mystic silt loam, 5 to 9 percent slopes, moderately eroded

7.8

1.0%

592D2

Mystic silt loam, 9 to 14 percent slopes, moderately eroded

3.4

0.5%

594D2

Galland loam, 9 to 14 percent slopes, moderately eroded

2.6

0.3%

688

Koszta silt loam, 0 to 2 percent slopes

13.7

1.8%

730B

Nodaway-Cantril complex, 2 to 5 percent slopes

24.7

3.3%

731C2

Pershing silty clay loam, 5 to 9 percent slopes, moderately eroded

51.3

6.8%

792D2

Armstrong loam, 9 to 14 percent slopes, moderately eroded

102.6

13.7%

876B

Ladoga silt loam, benches, 2 to 5 percent slopes

18.6

2.5%

876C

Ladoga silt loam, benches, 5 to 9 percent slopes

3.4

0.5%

876C2

Ladoga silt loam, benches, 5 to 9 percent slopes, moderately eroded

22.6

3.0%

880B

Clinton silt loam, benches, 2 to 5 percent slopes

3.6

0.5%

880C2

Clinton silt loam, benches, 5 to 9 percent slopes, moderately eroded

16.7

2.2%

881B

Otley silty clay loam, benches, 2 to 5 percent slopes

3.6

0.5%

881C2

Otley silty clay loam, benches, 5 to 9 percent slopes, moderately eroded

5.6

0.8%

1220

Nodaway silt loam, channeled, 0 to 2 percent slopes

32.4

4.3%

W

Water

4.3

0.6%

750.4

100.0%

Totals for Area of Interest (AOI)

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Custom Soil Resource Report

Map Unit Descriptions The map units delineated on the detailed soil maps in a soil survey represent the soils or miscellaneous areas in the survey area. The map unit descriptions, along with the maps, can be used to determine the composition and properties of a unit. 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. If included in the database for a given area, the contrasting minor components are identified in the map unit descriptions along with some characteristics of each. 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 important soil properties and qualities. Soils that have profiles that are almost alike make up a soil series. Except for differences in texture of the surface layer, all the soils of a series have major horizons that are similar in composition, thickness, and arrangement. Soils of one series can differ in texture of the surface layer, slope, stoniness, salinity, degree of erosion, and other characteristics that affect their use. On the basis of such differences, a soil series is divided into soil phases. Most of the areas shown on the detailed soil maps are phases of soil series. The name of a soil phase commonly

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Custom Soil Resource Report indicates a feature that affects use or management. For example, Alpha silt loam, 0 to 2 percent slopes, is a phase of the Alpha series. Some map units are made up of two or more major soils or miscellaneous areas. These map units are complexes, associations, or undifferentiated groups. A complex consists of two or more soils or miscellaneous areas in such an intricate pattern or in such small areas that they cannot be shown separately on the maps. The pattern and proportion of the soils or miscellaneous areas are somewhat similar in all areas. Alpha-Beta complex, 0 to 6 percent slopes, is an example. An association is made up of two or more geographically associated soils or miscellaneous areas that are shown as one unit on the maps. Because of present or anticipated uses of the map units in the survey area, it was not considered practical or necessary to map the soils or miscellaneous areas separately. The pattern and relative proportion of the soils or miscellaneous areas are somewhat similar. AlphaBeta association, 0 to 2 percent slopes, is an example. An undifferentiated group is made up of two or more soils or miscellaneous areas that could be mapped individually but are mapped as one unit because similar interpretations can be made for use and management. The pattern and proportion of the soils or miscellaneous areas in a mapped area are not uniform. An area can be made up of only one of the major soils or miscellaneous areas, or it can be made up of all of them. Alpha and Beta soils, 0 to 2 percent slopes, is an example. Some surveys include miscellaneous areas. Such areas have little or no soil material and support little or no vegetation. Rock outcrop is an example.

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Custom Soil Resource Report

Wapello County, Iowa Version date:3/17/2008 11:37:31 AM 11B—Colo-Ely silty clay loams, 2 to 5 percent slopes Map Unit Setting Elevation: 500 to 1,400 feet Mean annual precipitation: 34 to 37 inches Mean annual air temperature: 48 to 54 degrees F Frost-free period: 175 to 200 days Map Unit Composition Colo, frequently flooded, and similar soils: 60 percent Ely and similar soils: 30 percent Minor components: 10 percent Description of Colo, Frequently Flooded Setting Landform: Drainageways Landform position (two-dimensional): Footslope Landform position (three-dimensional): Base slope Down-slope shape: Linear Across-slope shape: Concave Parent material: Silty alluvium Properties and qualities Slope: 2 to 5 percent Depth to restrictive feature: More than 80 inches Drainage class: Poorly drained Capacity of the most limiting layer to transmit water (Ksat): Moderately high to high (0.60 to 2.00 in/hr) Depth to water table: About 0 to 12 inches Frequency of flooding: Frequent Frequency of ponding: None Available water capacity: High (about 11.7 inches) Interpretive groups Land capability (nonirrigated): 3w Typical profile 0 to 10 inches: Silty clay loam 10 to 72 inches: Silty clay loam Description of Ely Setting Landform: Drainageways Landform position (two-dimensional): Footslope Landform position (three-dimensional): Base slope Down-slope shape: Concave Across-slope shape: Linear Parent material: Silty colluvium Properties and qualities Slope: 2 to 5 percent

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Custom Soil Resource Report Depth to restrictive feature: More than 80 inches Drainage class: Somewhat poorly drained Capacity of the most limiting layer to transmit water (Ksat): Moderately high to high (0.60 to 2.00 in/hr) Depth to water table: About 12 to 42 inches Frequency of flooding: None Frequency of ponding: None Calcium carbonate, maximum content: 25 percent Available water capacity: High (about 11.7 inches) Interpretive groups Land capability (nonirrigated): 2e Typical profile 0 to 10 inches: Silty clay loam 10 to 34 inches: Silty clay loam 34 to 60 inches: Silty clay loam Minor Components Zook, frequently flooded Percent of map unit: 10 percent Landform: Drainageways Landform position (two-dimensional): Toeslope Landform position (three-dimensional): Base slope Down-slope shape: Linear Across-slope shape: Concave

51—Vesser silt loam, 0 to 2 percent slopes Map Unit Setting Elevation: 500 to 1,400 feet Mean annual precipitation: 34 to 37 inches Mean annual air temperature: 48 to 54 degrees F Frost-free period: 175 to 200 days Map Unit Composition Vesser, occasionally flooded, and similar soils: 95 percent Minor components: 5 percent Description of Vesser, Occasionally Flooded Setting Landform: Flood plains Landform position (two-dimensional): Toeslope Landform position (three-dimensional): Talf Down-slope shape: Linear Across-slope shape: Concave Parent material: Silty alluvium Properties and qualities Slope: 0 to 2 percent Depth to restrictive feature: More than 80 inches Drainage class: Poorly drained Capacity of the most limiting layer to transmit water (Ksat): Moderately high to high (0.60 to 2.00 in/hr)

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Custom Soil Resource Report Depth to water table: About 0 to 12 inches Frequency of flooding: Occasional Frequency of ponding: None Available water capacity: High (about 11.9 inches) Interpretive groups Land capability (nonirrigated): 2w Typical profile 0 to 13 inches: Silt loam 13 to 31 inches: Silt loam 31 to 80 inches: Silty clay loam Minor Components Humeston, occasionally flooded Percent of map unit: 5 percent Landform: Flood plains Landform position (two-dimensional): Toeslope, footslope Landform position (three-dimensional): Tread Down-slope shape: Concave Across-slope shape: Linear

54—Zook silty clay loam, 0 to 2 percent slopes Map Unit Setting Elevation: 500 to 1,400 feet Mean annual precipitation: 34 to 37 inches Mean annual air temperature: 48 to 54 degrees F Frost-free period: 175 to 200 days Map Unit Composition Zook, occasionally flooded, and similar soils: 95 percent Minor components: 5 percent Description of Zook, Occasionally Flooded Setting Landform: Flood plains Landform position (two-dimensional): Toeslope Landform position (three-dimensional): Talf Down-slope shape: Linear Across-slope shape: Linear Parent material: Clayey alluvium Properties and qualities Slope: 0 to 2 percent Depth to restrictive feature: More than 80 inches Drainage class: Poorly drained Capacity of the most limiting layer to transmit water (Ksat): Very low to moderately high (0.00 to 0.20 in/hr) Depth to water table: About 0 to 12 inches Frequency of flooding: Occasional Frequency of ponding: None Available water capacity: High (about 10.6 inches)

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Custom Soil Resource Report

Interpretive groups Land capability (nonirrigated): 2w Typical profile 0 to 24 inches: Silty clay loam 24 to 40 inches: Silty clay 40 to 60 inches: Silty clay Minor Components Colo, occasionally flooded Percent of map unit: 5 percent Landform: Flood plains Landform position (two-dimensional): Toeslope Landform position (three-dimensional): Talf Down-slope shape: Linear Across-slope shape: Linear

58G—Douds soils, 18 to 40 percent slopes Map Unit Setting Elevation: 550 to 1,300 feet Mean annual precipitation: 34 to 37 inches Mean annual air temperature: 48 to 54 degrees F Frost-free period: 175 to 200 days Map Unit Composition Douds and similar soils: 90 percent Description of Douds Setting Landform: Stream terraces Landform position (two-dimensional): Backslope Landform position (three-dimensional): Riser Down-slope shape: Convex Across-slope shape: Linear Parent material: Alluvial sediments derived from till Properties and qualities Slope: 18 to 30 percent Depth to restrictive feature: More than 80 inches Drainage class: Moderately well drained Capacity of the most limiting layer to transmit water (Ksat): Moderately high to high (0.57 to 2.00 in/hr) Depth to water table: About 48 to 72 inches Frequency of flooding: None Frequency of ponding: None Available water capacity: Moderate (about 8.5 inches) Interpretive groups Land capability (nonirrigated): 7e Typical profile 0 to 11 inches: Loam 11 to 34 inches: Clay loam

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Custom Soil Resource Report 34 to 60 inches: Stratified loamy sand to clay loam

93D2—Shelby-Adair clay loams, 9 to 14 percent slopes, moderately eroded Map Unit Setting Elevation: 650 to 1,500 feet Mean annual precipitation: 34 to 37 inches Mean annual air temperature: 48 to 54 degrees F Frost-free period: 175 to 200 days Map Unit Composition Shelby, moderately eroded, and similar soils: 50 percent Adair, moderately eroded, and similar soils: 40 percent Minor components: 10 percent Description of Shelby, Moderately Eroded Setting Landform: Hillslopes Landform position (two-dimensional): Backslope Landform position (three-dimensional): Side slope Down-slope shape: Convex Across-slope shape: Convex Parent material: Subglacial till Properties and qualities Slope: 9 to 14 percent Depth to restrictive feature: More than 80 inches Drainage class: Well drained Capacity of the most limiting layer to transmit water (Ksat): Moderately high (0.20 to 0.60 in/hr) Depth to water table: More than 80 inches Frequency of flooding: None Frequency of ponding: None Calcium carbonate, maximum content: 30 percent Available water capacity: High (about 10.2 inches) Interpretive groups Land capability (nonirrigated): 3e Typical profile 0 to 7 inches: Clay loam 7 to 42 inches: Clay loam 42 to 60 inches: Clay loam Description of Adair, Moderately Eroded Setting Landform: Hillslopes Landform position (two-dimensional): Backslope Landform position (three-dimensional): Side slope Down-slope shape: Convex Across-slope shape: Convex Parent material: Red paleosol and underlying subglacial till

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Custom Soil Resource Report

Properties and qualities Slope: 9 to 14 percent Depth to restrictive feature: More than 80 inches Drainage class: Somewhat poorly drained Capacity of the most limiting layer to transmit water (Ksat): Moderately low to moderately high (0.06 to 0.20 in/hr) Depth to water table: About 12 to 18 inches Frequency of flooding: None Frequency of ponding: None Calcium carbonate, maximum content: 10 percent Available water capacity: High (about 9.2 inches) Interpretive groups Land capability (nonirrigated): 4e Typical profile 0 to 7 inches: Clay loam 7 to 43 inches: Clay 43 to 60 inches: Clay loam Minor Components Clarinda, moderately eroded Percent of map unit: 10 percent Landform: Hillslopes Landform position (two-dimensional): Backslope Landform position (three-dimensional): Side slope Down-slope shape: Concave Across-slope shape: Concave

130—Belinda silt loam, 0 to 2 percent slopes Map Unit Setting Elevation: 800 to 1,100 feet Mean annual precipitation: 34 to 37 inches Mean annual air temperature: 48 to 54 degrees F Frost-free period: 175 to 200 days Map Unit Composition Belinda and similar soils: 95 percent Description of Belinda Setting Landform: Flats Landform position (two-dimensional): Summit Landform position (three-dimensional): Interfluve Down-slope shape: Concave Across-slope shape: Linear Parent material: Loess Properties and qualities Slope: 0 to 2 percent Depth to restrictive feature: More than 80 inches Drainage class: Poorly drained

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Custom Soil Resource Report Capacity of the most limiting layer to transmit water (Ksat): Very low to moderately low (0.00 to 0.06 in/hr) Depth to water table: About 0 to 12 inches Frequency of flooding: None Frequency of ponding: None Available water capacity: High (about 10.7 inches) Interpretive groups Land capability (nonirrigated): 3w Typical profile 0 to 8 inches: Silt loam 8 to 16 inches: Silt loam 16 to 36 inches: Silty clay 36 to 75 inches: Silty clay loam

131B—Pershing silt loam, 2 to 5 percent slopes Map Unit Setting Elevation: 700 to 1,400 feet Mean annual precipitation: 34 to 37 inches Mean annual air temperature: 48 to 54 degrees F Frost-free period: 175 to 200 days Map Unit Composition Pershing and similar soils: 95 percent Minor components: 5 percent Description of Pershing Setting Landform: Hillslopes Landform position (two-dimensional): Summit Landform position (three-dimensional): Interfluve Down-slope shape: Convex Across-slope shape: Linear Parent material: Loess Properties and qualities Slope: 2 to 5 percent Depth to restrictive feature: More than 80 inches Drainage class: Somewhat poorly drained Capacity of the most limiting layer to transmit water (Ksat): Moderately low to moderately high (0.06 to 0.20 in/hr) Depth to water table: About 12 to 18 inches Frequency of flooding: None Frequency of ponding: None Available water capacity: Very high (about 12.2 inches) Interpretive groups Land capability (nonirrigated): 3e Typical profile 0 to 9 inches: Silt loam 9 to 32 inches: Silty clay loam 32 to 50 inches: Silty clay loam 50 to 60 inches: Silty clay loam

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Custom Soil Resource Report

Minor Components Belinda Percent of map unit: 5 percent Landform: Flats Landform position (two-dimensional): Summit Landform position (three-dimensional): Interfluve Down-slope shape: Concave Across-slope shape: Linear

133—Colo silty clay loam, 0 to 2 percent slopes Map Unit Setting Elevation: 500 to 1,400 feet Mean annual precipitation: 34 to 37 inches Mean annual air temperature: 48 to 54 degrees F Frost-free period: 175 to 200 days Map Unit Composition Colo, occasionally flooded, and similar soils: 95 percent Minor components: 5 percent Description of Colo, Occasionally Flooded Setting Landform: Flood plains Landform position (two-dimensional): Toeslope Landform position (three-dimensional): Talf Down-slope shape: Linear Across-slope shape: Linear Parent material: Silty alluvium Properties and qualities Slope: 0 to 2 percent Depth to restrictive feature: More than 80 inches Drainage class: Poorly drained Capacity of the most limiting layer to transmit water (Ksat): Moderately high to high (0.60 to 2.00 in/hr) Depth to water table: About 0 to 12 inches Frequency of flooding: Occasional Frequency of ponding: None Available water capacity: High (about 11.7 inches) Interpretive groups Land capability (nonirrigated): 2w Typical profile 0 to 10 inches: Silty clay loam 10 to 30 inches: Silty clay loam 30 to 60 inches: Silty clay loam Minor Components Zook, occasionally flooded Percent of map unit: 5 percent Landform: Flood plains

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Custom Soil Resource Report Landform position (two-dimensional): Toeslope Landform position (three-dimensional): Talf Down-slope shape: Linear Across-slope shape: Linear

192C2—Adair clay loam, 5 to 9 percent slopes, moderately eroded Map Unit Setting Elevation: 700 to 1,350 feet Mean annual precipitation: 34 to 37 inches Mean annual air temperature: 48 to 54 degrees F Frost-free period: 175 to 200 days Map Unit Composition Adair, moderately eroded, and similar soils: 95 percent Minor components: 5 percent Description of Adair, Moderately Eroded Setting Landform: Hillslopes Landform position (two-dimensional): Shoulder Landform position (three-dimensional): Side slope Down-slope shape: Convex Across-slope shape: Convex Parent material: Red paleosol and underlying subglacial till Properties and qualities Slope: 5 to 9 percent Depth to restrictive feature: More than 80 inches Drainage class: Somewhat poorly drained Capacity of the most limiting layer to transmit water (Ksat): Moderately low to moderately high (0.06 to 0.20 in/hr) Depth to water table: About 12 to 18 inches Frequency of flooding: None Frequency of ponding: None Calcium carbonate, maximum content: 10 percent Available water capacity: High (about 9.2 inches) Interpretive groups Land capability (nonirrigated): 3e Typical profile 0 to 7 inches: Clay loam 7 to 43 inches: Clay 43 to 60 inches: Clay loam Minor Components Rinda, moderately eroded Percent of map unit: 5 percent Landform: Hillslopes Landform position (two-dimensional): Shoulder, backslope Landform position (three-dimensional): Side slope, head slope Down-slope shape: Concave

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Custom Soil Resource Report Across-slope shape: Concave

192D2—Adair clay loam, 9 to 14 percent slopes, moderately eroded Map Unit Setting Elevation: 650 to 1,500 feet Mean annual precipitation: 34 to 37 inches Mean annual air temperature: 48 to 54 degrees F Frost-free period: 175 to 200 days Map Unit Composition Adair, moderately eroded, and similar soils: 90 percent Minor components: 5 percent Description of Adair, Moderately Eroded Setting Landform: Hillslopes Landform position (two-dimensional): Backslope Landform position (three-dimensional): Side slope Down-slope shape: Convex Across-slope shape: Convex Parent material: Red paleosol and underlying subglacial till Properties and qualities Slope: 9 to 14 percent Depth to restrictive feature: More than 80 inches Drainage class: Somewhat poorly drained Capacity of the most limiting layer to transmit water (Ksat): Moderately low to moderately high (0.06 to 0.20 in/hr) Depth to water table: About 12 to 18 inches Frequency of flooding: None Frequency of ponding: None Calcium carbonate, maximum content: 10 percent Available water capacity: High (about 9.2 inches) Interpretive groups Land capability (nonirrigated): 4e Typical profile 0 to 7 inches: Clay loam 7 to 43 inches: Clay 43 to 60 inches: Clay loam Minor Components Clarinda, moderately eroded Percent of map unit: 5 percent Landform: Hillslopes Landform position (two-dimensional): Backslope Landform position (three-dimensional): Side slope Down-slope shape: Concave Across-slope shape: Concave

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Custom Soil Resource Report

220—Nodaway silt loam, 0 to 2 percent slopes Map Unit Setting Elevation: 500 to 1,400 feet Mean annual precipitation: 34 to 37 inches Mean annual air temperature: 48 to 54 degrees F Frost-free period: 175 to 200 days Map Unit Composition Nodaway, occasionally flooded, and similar soils: 90 percent Minor components: 5 percent Description of Nodaway, Occasionally Flooded Setting Landform: Flood plains Landform position (two-dimensional): Toeslope Landform position (three-dimensional): Talf Down-slope shape: Linear Across-slope shape: Linear Parent material: Silty alluvium Properties and qualities Slope: 0 to 2 percent Depth to restrictive feature: More than 80 inches Drainage class: Moderately well drained Capacity of the most limiting layer to transmit water (Ksat): Moderately high to high (0.60 to 2.00 in/hr) Depth to water table: About 48 to 72 inches Frequency of flooding: Occasional Frequency of ponding: None Available water capacity: Very high (about 13.2 inches) Interpretive groups Land capability (nonirrigated): 2w Typical profile 0 to 7 inches: Silt loam 7 to 31 inches: Stratified silt loam to silty clay loam 31 to 42 inches: Stratified silt loam to silty clay loam 42 to 80 inches: Stratified silt loam to silty clay loam Minor Components Colo, occasionally flooded Percent of map unit: 5 percent Landform: Flood plains Landform position (two-dimensional): Toeslope Landform position (three-dimensional): Talf Down-slope shape: Linear Across-slope shape: Linear

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Custom Soil Resource Report

222C2—Clarinda silty clay loam, 5 to 9 percent slopes, moderately eroded Map Unit Setting Elevation: 500 to 1,500 feet Mean annual precipitation: 34 to 37 inches Mean annual air temperature: 48 to 54 degrees F Frost-free period: 175 to 200 days Map Unit Composition Clarinda, moderately eroded, and similar soils: 85 percent Minor components: 5 percent Description of Clarinda, Moderately Eroded Setting Landform: Hillslopes Landform position (two-dimensional): Shoulder, backslope Landform position (three-dimensional): Side slope Down-slope shape: Concave Across-slope shape: Concave Parent material: Gray paleosol and underlying subglacial till Properties and qualities Slope: 5 to 9 percent Depth to restrictive feature: More than 80 inches Drainage class: Poorly drained Capacity of the most limiting layer to transmit water (Ksat): Very low to moderately low (0.00 to 0.06 in/hr) Depth to water table: About 0 to 12 inches Frequency of flooding: None Frequency of ponding: None Calcium carbonate, maximum content: 30 percent Available water capacity: High (about 9.3 inches) Interpretive groups Land capability (nonirrigated): 4w Typical profile 0 to 10 inches: Silty clay loam 10 to 39 inches: Clay 39 to 72 inches: Clay Minor Components Colo, frequently flooded Percent of map unit: 5 percent Landform: Drainageways Landform position (two-dimensional): Footslope Landform position (three-dimensional): Base slope Down-slope shape: Linear Across-slope shape: Concave

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Custom Soil Resource Report

223C2—Rinda silty clay loam, 5 to 9 percent slopes, moderately eroded Map Unit Setting Elevation: 700 to 1,350 feet Mean annual precipitation: 34 to 37 inches Mean annual air temperature: 48 to 54 degrees F Frost-free period: 175 to 200 days Map Unit Composition Rinda, moderately eroded, and similar soils: 95 percent Description of Rinda, Moderately Eroded Setting Landform: Hillslopes Landform position (two-dimensional): Shoulder, backslope Landform position (three-dimensional): Head slope, side slope Down-slope shape: Concave Across-slope shape: Concave Parent material: Gray paleosol and underlying subglacial till Properties and qualities Slope: 5 to 9 percent Depth to restrictive feature: More than 80 inches Drainage class: Poorly drained Capacity of the most limiting layer to transmit water (Ksat): Very low to moderately low (0.00 to 0.06 in/hr) Depth to water table: About 0 to 12 inches Frequency of flooding: None Frequency of ponding: None Available water capacity: High (about 9.4 inches) Interpretive groups Land capability (nonirrigated): 4w Typical profile 0 to 7 inches: Silty clay loam 7 to 60 inches: Clay

269—Humeston silt loam, 0 to 2 percent slopes Map Unit Setting Elevation: 500 to 1,400 feet Mean annual precipitation: 34 to 37 inches Mean annual air temperature: 48 to 54 degrees F Frost-free period: 175 to 200 days Map Unit Composition Humeston, occasionally flooded, and similar soils: 90 percent Minor components: 10 percent

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Custom Soil Resource Report

Description of Humeston, Occasionally Flooded Setting Landform: Flood plains Landform position (two-dimensional): Toeslope, footslope Landform position (three-dimensional): Tread, talf Down-slope shape: Concave Across-slope shape: Linear Properties and qualities Slope: 0 to 2 percent Depth to restrictive feature: More than 80 inches Drainage class: Poorly drained Capacity of the most limiting layer to transmit water (Ksat): Very low to moderately low (0.00 to 0.06 in/hr) Depth to water table: About 0 to 12 inches Frequency of flooding: Occasional Frequency of ponding: None Available water capacity: High (about 10.1 inches) Interpretive groups Land capability (nonirrigated): 3w Typical profile 0 to 14 inches: Silt loam 14 to 22 inches: Silt loam 22 to 60 inches: Silty clay Minor Components Vesser, occasionally flooded Percent of map unit: 5 percent Landform: Flood plains Landform position (two-dimensional): Toeslope Landform position (three-dimensional): Talf Down-slope shape: Linear Across-slope shape: Concave Zook, occasionally flooded Percent of map unit: 5 percent Landform: Flood plains Landform position (two-dimensional): Toeslope Landform position (three-dimensional): Talf Down-slope shape: Linear Across-slope shape: Linear

276C2—Ladoga-Hedrick silt loams, 5 to 9 percent slopes, moderately eroded Map Unit Setting Elevation: 700 to 1,350 feet Mean annual precipitation: 33 to 38 inches Mean annual air temperature: 46 to 52 degrees F Frost-free period: 170 to 200 days

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Custom Soil Resource Report

Map Unit Composition Ladoga, moderately eroded, and similar soils: 60 percent Hedrick, moderately eroded, and similar soils: 30 percent Minor components: 10 percent Description of Ladoga, Moderately Eroded Setting Landform: Hillslopes Landform position (two-dimensional): Summit, shoulder Landform position (three-dimensional): Side slope, interfluve Down-slope shape: Convex Across-slope shape: Linear Parent material: Loess Properties and qualities Slope: 5 to 9 percent Depth to restrictive feature: More than 80 inches Drainage class: Moderately well drained Capacity of the most limiting layer to transmit water (Ksat): Moderately high (0.20 to 0.60 in/hr) Depth to water table: About 48 to 72 inches Frequency of flooding: None Frequency of ponding: None Available water capacity: High (about 11.8 inches) Interpretive groups Land capability (nonirrigated): 3e Typical profile 0 to 11 inches: Silt loam 11 to 36 inches: Silty clay loam 36 to 70 inches: Silty clay loam Description of Hedrick, Moderately Eroded Setting Landform: Hillslopes Landform position (two-dimensional): Shoulder, backslope Landform position (three-dimensional): Side slope Down-slope shape: Concave Across-slope shape: Linear Parent material: Loess Properties and qualities Slope: 5 to 9 percent Depth to restrictive feature: More than 80 inches Drainage class: Moderately well drained Capacity of the most limiting layer to transmit water (Ksat): Moderately high to high (0.60 to 2.00 in/hr) Depth to water table: About 24 to 48 inches Frequency of flooding: None Frequency of ponding: None Available water capacity: High (about 11.6 inches) Interpretive groups Land capability (nonirrigated): 3e 28

Custom Soil Resource Report

Typical profile 0 to 7 inches: Silt loam 7 to 44 inches: Silty clay loam 44 to 60 inches: Silty clay loam Minor Components Rinda, moderately eroded Percent of map unit: 10 percent Landform: Hillslopes Landform position (two-dimensional): Shoulder, backslope Landform position (three-dimensional): Head slope, side slope Down-slope shape: Concave Across-slope shape: Concave

279—Taintor silty clay loam, 0 to 2 percent slopes Map Unit Setting Elevation: 700 to 1,400 feet Mean annual precipitation: 33 to 38 inches Mean annual air temperature: 46 to 52 degrees F Frost-free period: 170 to 200 days Map Unit Composition Taintor and similar soils: 85 percent Minor components: 10 percent Description of Taintor Setting Landform: Flats Landform position (two-dimensional): Summit Landform position (three-dimensional): Talf Down-slope shape: Concave Across-slope shape: Concave Parent material: Loess Properties and qualities Slope: 0 to 2 percent Depth to restrictive feature: More than 80 inches Drainage class: Poorly drained Capacity of the most limiting layer to transmit water (Ksat): Moderately high (0.20 to 0.60 in/hr) Depth to water table: About 0 to 12 inches Frequency of flooding: None Frequency of ponding: None Available water capacity: Very high (about 12.3 inches) Interpretive groups Land capability (nonirrigated): 2w Typical profile 0 to 20 inches: Silty clay loam 20 to 46 inches: Silty clay loam 46 to 60 inches: Silty clay loam

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Custom Soil Resource Report

Minor Components Kalona Percent of map unit: 5 percent Landform: Flats Landform position (two-dimensional): Summit Landform position (three-dimensional): Talf Down-slope shape: Concave Across-slope shape: Concave Sperry, ponded Percent of map unit: 5 percent Landform: Depressions Landform position (two-dimensional): Summit Landform position (three-dimensional): Interfluve Down-slope shape: Concave Across-slope shape: Concave

280—Mahaska silty clay loam, 0 to 2 percent slopes Map Unit Setting Elevation: 700 to 1,400 feet Mean annual precipitation: 33 to 38 inches Mean annual air temperature: 46 to 52 degrees F Frost-free period: 170 to 200 days Map Unit Composition Mahaska and similar soils: 85 percent Minor components: 10 percent Description of Mahaska Setting Landform: Flats Landform position (two-dimensional): Summit Landform position (three-dimensional): Interfluve Down-slope shape: Linear Across-slope shape: Convex Parent material: Loess Properties and qualities Slope: 0 to 2 percent Depth to restrictive feature: More than 80 inches Drainage class: Somewhat poorly drained Capacity of the most limiting layer to transmit water (Ksat): Moderately high to high (0.60 to 2.00 in/hr) Depth to water table: About 12 to 42 inches Frequency of flooding: None Frequency of ponding: None Available water capacity: High (about 11.4 inches) Interpretive groups Land capability (nonirrigated): 1 Typical profile 0 to 23 inches: Silty clay loam

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Custom Soil Resource Report 23 to 46 inches: Silty clay loam 46 to 70 inches: Silty clay loam Minor Components Taintor Percent of map unit: 5 percent Landform: Flats Landform position (two-dimensional): Summit Landform position (three-dimensional): Talf Down-slope shape: Concave Across-slope shape: Concave Sperry, ponded Percent of map unit: 5 percent Landform: Depressions Landform position (two-dimensional): Summit Landform position (three-dimensional): Interfluve Down-slope shape: Concave Across-slope shape: Concave

281B—Otley silty clay loam, 2 to 5 percent slopes Map Unit Setting Elevation: 700 to 1,300 feet Mean annual precipitation: 33 to 38 inches Mean annual air temperature: 46 to 52 degrees F Frost-free period: 170 to 200 days Map Unit Composition Otley and similar soils: 95 percent Description of Otley Setting Landform: Hillslopes Landform position (two-dimensional): Summit Landform position (three-dimensional): Interfluve Down-slope shape: Convex Across-slope shape: Convex Parent material: Loess Properties and qualities Slope: 2 to 5 percent Depth to restrictive feature: More than 80 inches Drainage class: Moderately well drained Capacity of the most limiting layer to transmit water (Ksat): Moderately high to high (0.60 to 2.00 in/hr) Depth to water table: About 24 to 48 inches Frequency of flooding: None Frequency of ponding: None Available water capacity: High (about 11.9 inches) Interpretive groups Land capability (nonirrigated): 2e

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Custom Soil Resource Report

Typical profile 0 to 16 inches: Silty clay loam 16 to 40 inches: Silty clay loam 40 to 60 inches: Silty clay loam

281C—Otley silty clay loam, 5 to 9 percent slopes Map Unit Setting Elevation: 700 to 1,300 feet Mean annual precipitation: 33 to 38 inches Mean annual air temperature: 46 to 52 degrees F Frost-free period: 170 to 200 days Map Unit Composition Otley and similar soils: 95 percent Description of Otley Setting Landform: Hillslopes Landform position (two-dimensional): Shoulder, summit Landform position (three-dimensional): Interfluve, side slope Down-slope shape: Convex Across-slope shape: Convex Parent material: Loess Properties and qualities Slope: 5 to 9 percent Depth to restrictive feature: More than 80 inches Drainage class: Moderately well drained Capacity of the most limiting layer to transmit water (Ksat): Moderately high to high (0.60 to 2.00 in/hr) Depth to water table: About 24 to 48 inches Frequency of flooding: None Frequency of ponding: None Available water capacity: High (about 11.9 inches) Interpretive groups Land capability (nonirrigated): 3e Typical profile 0 to 16 inches: Silty clay loam 16 to 40 inches: Silty clay loam 40 to 60 inches: Silty clay loam

362—Haig silt loam, 0 to 2 percent slopes Map Unit Setting Elevation: 650 to 1,350 feet Mean annual precipitation: 34 to 37 inches Mean annual air temperature: 48 to 54 degrees F Frost-free period: 175 to 200 days Map Unit Composition Haig and similar soils: 90 percent

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Custom Soil Resource Report Minor components: 5 percent Description of Haig Setting Landform: Flats Landform position (two-dimensional): Summit Landform position (three-dimensional): Talf Down-slope shape: Concave Across-slope shape: Concave Parent material: Loess Properties and qualities Slope: 0 to 2 percent Depth to restrictive feature: More than 80 inches Drainage class: Poorly drained Capacity of the most limiting layer to transmit water (Ksat): Moderately low to moderately high (0.06 to 0.20 in/hr) Depth to water table: About 0 to 12 inches Frequency of flooding: None Frequency of ponding: None Available water capacity: High (about 11.3 inches) Interpretive groups Land capability (nonirrigated): 2w Typical profile 0 to 11 inches: Silt loam 11 to 22 inches: Silty clay loam 22 to 36 inches: Silty clay 36 to 72 inches: Silty clay loam Minor Components Edina Percent of map unit: 5 percent Landform: Flats Landform position (two-dimensional): Summit Landform position (three-dimensional): Dip Down-slope shape: Concave Across-slope shape: Concave

364B—Grundy silt loam, 2 to 5 percent slopes Map Unit Setting Elevation: 650 to 1,350 feet Mean annual precipitation: 34 to 37 inches Mean annual air temperature: 48 to 54 degrees F Frost-free period: 175 to 200 days Map Unit Composition Grundy and similar soils: 90 percent Minor components: 5 percent

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Custom Soil Resource Report

Description of Grundy Setting Landform: Hillslopes Landform position (two-dimensional): Summit Landform position (three-dimensional): Interfluve Down-slope shape: Linear Across-slope shape: Concave Parent material: Loess Properties and qualities Slope: 2 to 5 percent Depth to restrictive feature: More than 80 inches Drainage class: Somewhat poorly drained Capacity of the most limiting layer to transmit water (Ksat): Moderately low to moderately high (0.06 to 0.20 in/hr) Depth to water table: About 12 to 18 inches Frequency of flooding: None Frequency of ponding: None Available water capacity: High (about 10.0 inches) Interpretive groups Land capability (nonirrigated): 2e Typical profile 0 to 12 inches: Silty clay loam 12 to 16 inches: Silty clay loam 16 to 36 inches: Silty clay 36 to 60 inches: Silty clay loam Minor Components Haig Percent of map unit: 5 percent Landform: Flats Landform position (two-dimensional): Summit Landform position (three-dimensional): Talf Down-slope shape: Concave Across-slope shape: Concave

451D2—Caleb loam, 7 to 14 percent slopes, moderately eroded Map Unit Setting Elevation: 550 to 1,000 feet Mean annual precipitation: 34 to 37 inches Mean annual air temperature: 48 to 54 degrees F Frost-free period: 175 to 200 days Map Unit Composition Caleb, moderately eroded, and similar soils: 85 percent Description of Caleb, Moderately Eroded Setting Landform: Stream terraces Landform position (two-dimensional): Backslope

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Custom Soil Resource Report Landform position (three-dimensional): Riser Down-slope shape: Convex Across-slope shape: Linear Parent material: Alluvial sediments derived from till Properties and qualities Slope: 7 to 14 percent Depth to restrictive feature: More than 80 inches Drainage class: Moderately well drained Capacity of the most limiting layer to transmit water (Ksat): Moderately high to high (0.60 to 2.00 in/hr) Depth to water table: About 48 to 72 inches Frequency of flooding: None Frequency of ponding: None Available water capacity: High (about 9.1 inches) Interpretive groups Land capability (nonirrigated): 4e Typical profile 0 to 7 inches: Loam 7 to 36 inches: Clay loam 36 to 72 inches: Sandy clay loam

453—Tuskeego silt loam, 0 to 2 percent slopes Map Unit Setting Elevation: 500 to 1,200 feet Mean annual precipitation: 34 to 37 inches Mean annual air temperature: 48 to 54 degrees F Frost-free period: 175 to 200 days Map Unit Composition Tuskeego, rarely flooded, and similar soils: 85 percent Minor components: 10 percent Description of Tuskeego, Rarely Flooded Setting Landform: Stream terraces Landform position (two-dimensional): Toeslope Landform position (three-dimensional): Tread Down-slope shape: Linear Across-slope shape: Linear Parent material: Silty alluvium Properties and qualities Slope: 0 to 2 percent Depth to restrictive feature: More than 80 inches Drainage class: Poorly drained Capacity of the most limiting layer to transmit water (Ksat): Very low to moderately low (0.00 to 0.06 in/hr) Depth to water table: About 0 to 12 inches Frequency of flooding: Rare Frequency of ponding: None Available water capacity: High (about 10.4 inches)

35

Custom Soil Resource Report

Interpretive groups Land capability (nonirrigated): 3w Typical profile 0 to 18 inches: Silt loam 18 to 49 inches: Silty clay 49 to 60 inches: Silty clay loam Minor Components Coppock, occasionally flooded Percent of map unit: 5 percent Landform: Stream terraces Landform position (two-dimensional): Toeslope Landform position (three-dimensional): Tread Down-slope shape: Linear Across-slope shape: Linear Humeston, occasionally flooded Percent of map unit: 5 percent Landform: Flood plains Landform position (two-dimensional): Footslope, toeslope Landform position (three-dimensional): Tread Down-slope shape: Concave Across-slope shape: Linear

581C2—Otley-Nira silty clay loams, 5 to 9 percent slopes, moderately eroded Map Unit Setting Elevation: 650 to 1,500 feet Mean annual precipitation: 33 to 38 inches Mean annual air temperature: 46 to 52 degrees F Frost-free period: 170 to 200 days Map Unit Composition Otley, moderately eroded, and similar soils: 60 percent Nira, moderately eroded, and similar soils: 35 percent Minor components: 5 percent Description of Otley, Moderately Eroded Setting Landform: Hillslopes Landform position (two-dimensional): Summit, shoulder Landform position (three-dimensional): Interfluve, side slope Down-slope shape: Convex Across-slope shape: Convex Parent material: Loess Properties and qualities Slope: 5 to 9 percent Depth to restrictive feature: More than 80 inches Drainage class: Moderately well drained

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Custom Soil Resource Report Capacity of the most limiting layer to transmit water (Ksat): Moderately high to high (0.60 to 2.00 in/hr) Depth to water table: About 24 to 48 inches Frequency of flooding: None Frequency of ponding: None Available water capacity: High (about 11.9 inches) Interpretive groups Land capability (nonirrigated): 3e Typical profile 0 to 7 inches: Silty clay loam 7 to 16 inches: Silty clay loam 16 to 40 inches: Silty clay loam 40 to 60 inches: Silty clay loam Description of Nira, Moderately Eroded Setting Landform: Hillslopes Landform position (two-dimensional): Backslope, shoulder Landform position (three-dimensional): Side slope Down-slope shape: Convex Across-slope shape: Linear Parent material: Loess Properties and qualities Slope: 5 to 9 percent Depth to restrictive feature: More than 80 inches Drainage class: Moderately well drained Capacity of the most limiting layer to transmit water (Ksat): Moderately high to high (0.60 to 2.00 in/hr) Depth to water table: About 24 to 48 inches Frequency of flooding: None Frequency of ponding: None Available water capacity: High (about 11.7 inches) Interpretive groups Land capability (nonirrigated): 3e Typical profile 0 to 12 inches: Silty clay loam 12 to 42 inches: Silty clay loam 42 to 60 inches: Silty clay loam Minor Components Clarinda, moderately eroded Percent of map unit: 5 percent Landform: Hillslopes Landform position (two-dimensional): Shoulder, backslope Landform position (three-dimensional): Side slope Down-slope shape: Concave Across-slope shape: Concave

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Custom Soil Resource Report

592C2—Mystic silt loam, 5 to 9 percent slopes, moderately eroded Map Unit Setting Elevation: 650 to 1,200 feet Mean annual precipitation: 34 to 37 inches Mean annual air temperature: 48 to 54 degrees F Frost-free period: 175 to 200 days Map Unit Composition Mystic, moderately eroded, and similar soils: 85 percent Description of Mystic, Moderately Eroded Setting Landform: Stream terraces Landform position (two-dimensional): Backslope Landform position (three-dimensional): Riser Down-slope shape: Convex Across-slope shape: Linear Parent material: Alluvial sediments derived from till Properties and qualities Slope: 5 to 9 percent Depth to restrictive feature: More than 80 inches Drainage class: Somewhat poorly drained Capacity of the most limiting layer to transmit water (Ksat): Moderately low to moderately high (0.06 to 0.20 in/hr) Depth to water table: About 12 to 18 inches Frequency of flooding: None Frequency of ponding: None Available water capacity: High (about 10.6 inches) Interpretive groups Land capability (nonirrigated): 3e Typical profile 0 to 8 inches: Silt loam 8 to 51 inches: Clay 51 to 65 inches: Sandy clay loam 65 to 69 inches: Stratified sandy loam to clay

592D2—Mystic silt loam, 9 to 14 percent slopes, moderately eroded Map Unit Setting Elevation: 650 to 1,200 feet Mean annual precipitation: 34 to 37 inches Mean annual air temperature: 48 to 54 degrees F Frost-free period: 175 to 200 days Map Unit Composition Mystic, moderately eroded, and similar soils: 85 percent

38

Custom Soil Resource Report

Description of Mystic, Moderately Eroded Setting Landform: Stream terraces Landform position (two-dimensional): Backslope Landform position (three-dimensional): Riser Down-slope shape: Convex Across-slope shape: Linear Parent material: Alluvial sediments derived from till Properties and qualities Slope: 9 to 14 percent Depth to restrictive feature: More than 80 inches Drainage class: Somewhat poorly drained Capacity of the most limiting layer to transmit water (Ksat): Moderately low to moderately high (0.06 to 0.20 in/hr) Depth to water table: About 12 to 18 inches Frequency of flooding: None Frequency of ponding: None Available water capacity: High (about 10.6 inches) Interpretive groups Land capability (nonirrigated): 4e Typical profile 0 to 8 inches: Silt loam 8 to 51 inches: Clay 51 to 65 inches: Sandy clay loam 65 to 69 inches: Stratified sandy loam to clay

594D2—Galland loam, 9 to 14 percent slopes, moderately eroded Map Unit Setting Elevation: 500 to 1,350 feet Mean annual precipitation: 34 to 37 inches Mean annual air temperature: 48 to 54 degrees F Frost-free period: 175 to 200 days Map Unit Composition Galland, moderately eroded, and similar soils: 85 percent Description of Galland, Moderately Eroded Setting Landform: Stream terraces Landform position (two-dimensional): Backslope Landform position (three-dimensional): Riser Down-slope shape: Convex Across-slope shape: Linear Parent material: Alluvial sediments derived from till Properties and qualities Slope: 9 to 14 percent Depth to restrictive feature: More than 80 inches Drainage class: Somewhat poorly drained

39

Custom Soil Resource Report Capacity of the most limiting layer to transmit water (Ksat): Moderately low to moderately high (0.06 to 0.20 in/hr) Depth to water table: About 12 to 18 inches Frequency of flooding: None Frequency of ponding: None Available water capacity: High (about 9.2 inches) Interpretive groups Land capability (nonirrigated): 4e Typical profile 0 to 6 inches: Loam 6 to 38 inches: Clay 38 to 60 inches: Stratified sandy loam to clay

688—Koszta silt loam, 0 to 2 percent slopes Map Unit Setting Elevation: 500 to 1,300 feet Mean annual precipitation: 34 to 37 inches Mean annual air temperature: 48 to 54 degrees F Frost-free period: 175 to 200 days Map Unit Composition Koszta, rarely flooded, and similar soils: 90 percent Minor components: 10 percent Description of Koszta, Rarely Flooded Setting Landform: Stream terraces Landform position (two-dimensional): Toeslope Landform position (three-dimensional): Tread Down-slope shape: Linear Across-slope shape: Linear Parent material: Silty alluvium Properties and qualities Slope: 0 to 2 percent Depth to restrictive feature: More than 80 inches Drainage class: Somewhat poorly drained Capacity of the most limiting layer to transmit water (Ksat): Moderately high to high (0.60 to 2.00 in/hr) Depth to water table: About 12 to 42 inches Frequency of flooding: Rare Frequency of ponding: None Available water capacity: High (about 10.9 inches) Interpretive groups Land capability (nonirrigated): 1 Typical profile 0 to 14 inches: Silt loam 14 to 60 inches: Silty clay loam

40

Custom Soil Resource Report

Minor Components Coppock, occasionally flooded Percent of map unit: 5 percent Landform: Stream terraces Landform position (two-dimensional): Toeslope Landform position (three-dimensional): Tread Down-slope shape: Linear Across-slope shape: Linear Tuskeego, rarely flooded Percent of map unit: 5 percent Landform: Stream terraces Landform position (two-dimensional): Toeslope Landform position (three-dimensional): Tread Down-slope shape: Linear Across-slope shape: Linear

730B—Nodaway-Cantril complex, 2 to 5 percent slopes Map Unit Setting Elevation: 500 to 1,400 feet Mean annual precipitation: 34 to 37 inches Mean annual air temperature: 48 to 54 degrees F Frost-free period: 175 to 200 days Map Unit Composition Nodaway, frequently flooded, and similar soils: 60 percent Cantril, rarely flooded, and similar soils: 30 percent Minor components: 10 percent Description of Nodaway, Frequently Flooded Setting Landform: Drainageways Landform position (two-dimensional): Footslope Landform position (three-dimensional): Base slope Down-slope shape: Linear Across-slope shape: Concave Parent material: Silty alluvium Properties and qualities Slope: 2 to 3 percent Depth to restrictive feature: More than 80 inches Drainage class: Moderately well drained Capacity of the most limiting layer to transmit water (Ksat): Moderately high to high (0.60 to 2.00 in/hr) Depth to water table: About 48 to 72 inches Frequency of flooding: Frequent Frequency of ponding: None Available water capacity: Very high (about 13.2 inches) Interpretive groups Land capability (nonirrigated): 3w

41

Custom Soil Resource Report

Typical profile 0 to 7 inches: Silt loam 7 to 31 inches: Stratified silt loam to silty clay loam 31 to 42 inches: Stratified silt loam to silty clay loam 42 to 80 inches: Stratified silt loam to silty clay loam Description of Cantril, Rarely Flooded Setting Landform: Drainageways Landform position (two-dimensional): Footslope Landform position (three-dimensional): Base slope Down-slope shape: Concave Across-slope shape: Linear Parent material: Loamy colluvium Properties and qualities Slope: 2 to 5 percent Depth to restrictive feature: More than 80 inches Drainage class: Somewhat poorly drained Capacity of the most limiting layer to transmit water (Ksat): Moderately high to high (0.60 to 2.00 in/hr) Depth to water table: About 12 to 42 inches Frequency of flooding: Rare Frequency of ponding: None Available water capacity: High (about 9.5 inches) Interpretive groups Land capability (nonirrigated): 2e Typical profile 0 to 8 inches: Loam 8 to 17 inches: Loam 17 to 55 inches: Clay loam 55 to 60 inches: Clay loam Minor Components Colo, frequently flooded Percent of map unit: 5 percent Landform: Drainageways Landform position (two-dimensional): Footslope Landform position (three-dimensional): Base slope Down-slope shape: Linear Across-slope shape: Concave Vesser, rarely flooded Percent of map unit: 5 percent Landform: Drainageways Landform position (two-dimensional): Footslope Landform position (three-dimensional): Base slope Down-slope shape: Linear Across-slope shape: Concave

42

Custom Soil Resource Report

731C2—Pershing silty clay loam, 5 to 9 percent slopes, moderately eroded Map Unit Setting Elevation: 700 to 1,400 feet Mean annual precipitation: 34 to 37 inches Mean annual air temperature: 48 to 54 degrees F Frost-free period: 175 to 200 days Map Unit Composition Pershing, moderately eroded, and similar soils: 90 percent Minor components: 5 percent Description of Pershing, Moderately Eroded Setting Landform: Hillslopes Landform position (two-dimensional): Summit, shoulder Landform position (three-dimensional): Side slope, interfluve Down-slope shape: Convex Across-slope shape: Linear Parent material: Loess Properties and qualities Slope: 5 to 9 percent Depth to restrictive feature: More than 80 inches Drainage class: Somewhat poorly drained Capacity of the most limiting layer to transmit water (Ksat): Moderately low to moderately high (0.06 to 0.20 in/hr) Depth to water table: About 12 to 18 inches Frequency of flooding: None Frequency of ponding: None Available water capacity: Very high (about 12.1 inches) Interpretive groups Land capability (nonirrigated): 3e Typical profile 0 to 6 inches: Silty clay loam 6 to 32 inches: Silty clay loam 32 to 50 inches: Silty clay loam 50 to 60 inches: Silty clay loam Minor Components Rinda, moderately eroded Percent of map unit: 5 percent Landform: Hillslopes Landform position (two-dimensional): Backslope, shoulder Landform position (three-dimensional): Head slope, side slope Down-slope shape: Concave Across-slope shape: Concave

43

Custom Soil Resource Report

792D2—Armstrong loam, 9 to 14 percent slopes, moderately eroded Map Unit Setting Elevation: 700 to 1,350 feet Mean annual precipitation: 34 to 37 inches Mean annual air temperature: 48 to 54 degrees F Frost-free period: 175 to 200 days Map Unit Composition Armstrong, moderately eroded, and similar soils: 85 percent Minor components: 3 percent Description of Armstrong, Moderately Eroded Setting Landform: Hillslopes Landform position (two-dimensional): Backslope Landform position (three-dimensional): Side slope Down-slope shape: Convex Across-slope shape: Convex Parent material: Red paleosol and underlying subglacial till Properties and qualities Slope: 9 to 14 percent Depth to restrictive feature: More than 80 inches Drainage class: Somewhat poorly drained Capacity of the most limiting layer to transmit water (Ksat): Moderately low to moderately high (0.06 to 0.20 in/hr) Depth to water table: About 12 to 18 inches Frequency of flooding: None Frequency of ponding: None Available water capacity: High (about 9.1 inches) Interpretive groups Land capability (nonirrigated): 4e Typical profile 0 to 8 inches: Loam 8 to 44 inches: Clay 44 to 68 inches: Clay loam Minor Components Rinda, moderately eroded Percent of map unit: 3 percent Landform: Hillslopes Landform position (two-dimensional): Shoulder, backslope Landform position (three-dimensional): Head slope, side slope Down-slope shape: Concave Across-slope shape: Concave

44

Custom Soil Resource Report

876B—Ladoga silt loam, benches, 2 to 5 percent slopes Map Unit Setting Elevation: 700 to 1,300 feet Mean annual precipitation: 33 to 38 inches Mean annual air temperature: 46 to 52 degrees F Frost-free period: 170 to 200 days Map Unit Composition Ladoga, bench, and similar soils: 95 percent Description of Ladoga, Bench Setting Landform: Stream terraces Landform position (two-dimensional): Toeslope Landform position (three-dimensional): Tread Down-slope shape: Convex Across-slope shape: Linear Parent material: Loess Properties and qualities Slope: 2 to 5 percent Depth to restrictive feature: More than 80 inches Drainage class: Moderately well drained Capacity of the most limiting layer to transmit water (Ksat): Moderately high (0.20 to 0.60 in/hr) Depth to water table: About 48 to 72 inches Frequency of flooding: None Frequency of ponding: None Available water capacity: High (about 11.8 inches) Interpretive groups Land capability (nonirrigated): 2e Typical profile 0 to 11 inches: Silt loam 11 to 36 inches: Silty clay loam 36 to 70 inches: Silty clay loam

876C—Ladoga silt loam, benches, 5 to 9 percent slopes Map Unit Setting Elevation: 700 to 1,300 feet Mean annual precipitation: 33 to 38 inches Mean annual air temperature: 46 to 52 degrees F Frost-free period: 170 to 200 days Map Unit Composition Ladoga, bench, and similar soils: 95 percent Description of Ladoga, Bench Setting Landform: Stream terraces

45

Custom Soil Resource Report Landform position (two-dimensional): Shoulder Landform position (three-dimensional): Riser Down-slope shape: Convex Across-slope shape: Convex Parent material: Loess Properties and qualities Slope: 5 to 9 percent Depth to restrictive feature: More than 80 inches Drainage class: Moderately well drained Capacity of the most limiting layer to transmit water (Ksat): Moderately high (0.20 to 0.60 in/hr) Depth to water table: About 48 to 72 inches Frequency of flooding: None Frequency of ponding: None Available water capacity: High (about 11.8 inches) Interpretive groups Land capability (nonirrigated): 3e Typical profile 0 to 11 inches: Silt loam 11 to 36 inches: Silty clay loam 36 to 70 inches: Silty clay loam

876C2—Ladoga silt loam, benches, 5 to 9 percent slopes, moderately eroded Map Unit Setting Elevation: 700 to 1,300 feet Mean annual precipitation: 33 to 38 inches Mean annual air temperature: 46 to 52 degrees F Frost-free period: 170 to 200 days Map Unit Composition Ladoga, bench, moderately eroded, and similar soils: 95 percent Description of Ladoga, Bench, Moderately Eroded Setting Landform: Stream terraces Landform position (two-dimensional): Shoulder Landform position (three-dimensional): Riser Down-slope shape: Convex Across-slope shape: Convex Parent material: Loess Properties and qualities Slope: 5 to 9 percent Depth to restrictive feature: More than 80 inches Drainage class: Moderately well drained Capacity of the most limiting layer to transmit water (Ksat): Moderately high (0.20 to 0.60 in/hr) Depth to water table: About 48 to 72 inches Frequency of flooding: None Frequency of ponding: None

46

Custom Soil Resource Report Available water capacity: High (about 11.8 inches) Interpretive groups Land capability (nonirrigated): 3e Typical profile 0 to 11 inches: Silt loam 11 to 36 inches: Silty clay loam 36 to 70 inches: Silty clay loam

880B—Clinton silt loam, benches, 2 to 5 percent slopes Map Unit Setting Elevation: 650 to 1,350 feet Mean annual precipitation: 33 to 38 inches Mean annual air temperature: 46 to 52 degrees F Frost-free period: 170 to 200 days Map Unit Composition Clinton, bench, and similar soils: 95 percent Description of Clinton, Bench Setting Landform: Stream terraces Landform position (two-dimensional): Toeslope Landform position (three-dimensional): Tread Down-slope shape: Convex Across-slope shape: Convex Parent material: Loess Properties and qualities Slope: 2 to 5 percent Depth to restrictive feature: More than 80 inches Drainage class: Moderately well drained Capacity of the most limiting layer to transmit water (Ksat): Moderately high (0.20 to 0.60 in/hr) Depth to water table: About 48 to 72 inches Frequency of flooding: None Frequency of ponding: None Available water capacity: High (about 11.1 inches) Interpretive groups Land capability (nonirrigated): 2e Typical profile 0 to 11 inches: Silt loam 11 to 60 inches: Silty clay loam 60 to 86 inches: Silty clay loam

880C2—Clinton silt loam, benches, 5 to 9 percent slopes, moderately eroded Map Unit Setting Elevation: 650 to 1,350 feet Mean annual precipitation: 33 to 38 inches

47

Custom Soil Resource Report Mean annual air temperature: 46 to 52 degrees F Frost-free period: 170 to 200 days Map Unit Composition Clinton, bench, moderately eroded, and similar soils: 90 percent Description of Clinton, Bench, Moderately Eroded Setting Landform: Stream terraces Landform position (two-dimensional): Backslope Landform position (three-dimensional): Riser Down-slope shape: Convex Across-slope shape: Convex Parent material: Loess Properties and qualities Slope: 5 to 9 percent Depth to restrictive feature: More than 80 inches Drainage class: Moderately well drained Capacity of the most limiting layer to transmit water (Ksat): Moderately high (0.20 to 0.60 in/hr) Depth to water table: About 48 to 72 inches Frequency of flooding: None Frequency of ponding: None Available water capacity: High (about 11.1 inches) Interpretive groups Land capability (nonirrigated): 3e Typical profile 0 to 11 inches: Silt loam 11 to 60 inches: Silty clay loam 60 to 86 inches: Silty clay loam

881B—Otley silty clay loam, benches, 2 to 5 percent slopes Map Unit Setting Elevation: 700 to 1,300 feet Mean annual precipitation: 33 to 38 inches Mean annual air temperature: 46 to 52 degrees F Frost-free period: 170 to 200 days Map Unit Composition Otley, bench, and similar soils: 95 percent Description of Otley, Bench Setting Landform: Stream terraces Landform position (two-dimensional): Toeslope Landform position (three-dimensional): Tread Down-slope shape: Convex Across-slope shape: Convex Parent material: Loess

48

Custom Soil Resource Report

Properties and qualities Slope: 2 to 5 percent Depth to restrictive feature: More than 80 inches Drainage class: Moderately well drained Capacity of the most limiting layer to transmit water (Ksat): Moderately high to high (0.60 to 2.00 in/hr) Depth to water table: About 24 to 48 inches Frequency of flooding: None Frequency of ponding: None Available water capacity: High (about 11.9 inches) Interpretive groups Land capability (nonirrigated): 2e Typical profile 0 to 16 inches: Silty clay loam 16 to 40 inches: Silty clay loam 40 to 60 inches: Silty clay loam

881C2—Otley silty clay loam, benches, 5 to 9 percent slopes, moderately eroded Map Unit Setting Elevation: 700 to 1,300 feet Mean annual precipitation: 33 to 38 inches Mean annual air temperature: 46 to 52 degrees F Frost-free period: 170 to 200 days Map Unit Composition Otley, bench, moderately eroded, and similar soils: 90 percent Description of Otley, Bench, Moderately Eroded Setting Landform: Stream terraces Landform position (two-dimensional): Backslope Landform position (three-dimensional): Riser Down-slope shape: Convex Across-slope shape: Convex Parent material: Loess Properties and qualities Slope: 5 to 9 percent Depth to restrictive feature: More than 80 inches Drainage class: Moderately well drained Capacity of the most limiting layer to transmit water (Ksat): Moderately high to high (0.60 to 2.00 in/hr) Depth to water table: About 24 to 48 inches Frequency of flooding: None Frequency of ponding: None Available water capacity: High (about 11.9 inches) Interpretive groups Land capability (nonirrigated): 3e

49

Custom Soil Resource Report

Typical profile 0 to 7 inches: Silty clay loam 7 to 16 inches: Silty clay loam 16 to 40 inches: Silty clay loam 40 to 60 inches: Silty clay loam

1220—Nodaway silt loam, channeled, 0 to 2 percent slopes Map Unit Setting Elevation: 400 to 1,400 feet Mean annual precipitation: 34 to 37 inches Mean annual air temperature: 48 to 54 degrees F Frost-free period: 175 to 200 days Map Unit Composition Nodaway, frequently flooded, and similar soils: 85 percent Minor components: 15 percent Description of Nodaway, Frequently Flooded Setting Landform: Flood plains Landform position (two-dimensional): Toeslope Landform position (three-dimensional): Talf Down-slope shape: Linear Across-slope shape: Linear Parent material: Silty alluvium Properties and qualities Slope: 0 to 2 percent Depth to restrictive feature: More than 80 inches Drainage class: Moderately well drained Capacity of the most limiting layer to transmit water (Ksat): Moderately high to high (0.60 to 2.00 in/hr) Depth to water table: About 48 to 72 inches Frequency of flooding: Frequent Frequency of ponding: None Available water capacity: Very high (about 13.2 inches) Interpretive groups Land capability (nonirrigated): 5w Typical profile 0 to 7 inches: Silt loam 7 to 31 inches: Stratified silt loam to silty clay loam 31 to 42 inches: Stratified silt loam to silty clay loam 42 to 80 inches: Stratified silt loam to silty clay loam Minor Components Colo, frequently flooded Percent of map unit: 5 percent Landform: Flood plains Landform position (two-dimensional): Toeslope Landform position (three-dimensional): Talf Down-slope shape: Linear

50

Custom Soil Resource Report Across-slope shape: Linear Landes, frequently flooded Percent of map unit: 5 percent Landform: Flood plains Landform position (two-dimensional): Toeslope Landform position (three-dimensional): Talf Down-slope shape: Convex Across-slope shape: Linear Zook, frequently flooded Percent of map unit: 5 percent Landform: Flood plains Landform position (two-dimensional): Toeslope Landform position (three-dimensional): Talf Down-slope shape: Linear Across-slope shape: Linear

W—Water Map Unit Setting Mean annual precipitation: 34 to 37 inches Mean annual air temperature: 48 to 54 degrees F Frost-free period: 175 to 200 days Map Unit Composition Water: 100 percent

51

Soil Information for All Uses Suitabilities and Limitations for Use The Suitabilities and Limitations for Use section includes various soil interpretations displayed as thematic maps with a summary table for the soil map units in the selected area of interest. A single value or rating for each map unit is generated by aggregating the interpretive ratings of individual map unit components. This aggregation process is defined for each interpretation.

Land Classifications Land Classifications are specified land use and management groupings that are assigned to soil areas because combinations of soil have similar behavior for specified practices. Most are based on soil properties and other factors that directly influence the specific use of the soil. Example classifications include ecological site classification, farmland classification, irrigated and nonirrigated land capability classification, and hydric rating.

Farmland Classification (Farmland Classification) Farmland classification identifies map units as prime farmland, farmland of statewide importance, farmland of local importance, or unique farmland. It identifies the location and extent of the soils that are best suited to food, feed, fiber, forage, and oilseed crops. NRCS policy and procedures on prime and unique farmlands are published in the "Federal Register," Vol. 43, No. 21, January 31, 1978.

52

Custom Soil Resource Report Map—Farmland Classification (Farmland Classification)

4547700

594D2 594D2 W 880C2 880C2 880B 58G 28 1C

B 876

281 B

51

CO HWY H25

279

51 W C ed W 688 220

880C2 592D2

1 ar 220 C

51

45 3

1220

51 269

0 4547100

223C2

2 C

4547100

133

453

2 12

6 27

730B

560400

560700

0

150

300

600

0

500

1,000

2,000

131B

731C2 223C2

730B

130

561000

Meters 900 Feet 3,000

4546500

131B 731C2 223C2

731C2

223 C2

364B 731C2 362 223C2

223 C2 60TH AVE

131B

223C2

4546800

133

re ek

51

792D2

4546500

4548000

451D2

276C2

560100

93D2

4548300

C2 881C2

280

2 792D

192C2 581C2

4547700

11B

222C2

281B 876B 451D2 281C 87 876C2 6C 2 592C2 1 1B 592C2 26 222C2 9

54

133

280 281B

4546800

C2

451D2 876B

9 26

876B

688

281C

561600

51

4548300

60TH AVE

87 6

133

281B

881B 876C 881C2

51

51

133 51 453 451D2

9 26

4548000

54

876C2

4547400

281B 581C2

561300

4548600

561000

4547400

560700

19 2

560400

4548600

560100

561300

561600

Custom Soil Resource Report Legend—Farmland Classification (Farmland Classification)

MAP LEGEND Area of Interest (AOI) Area of Interest (AOI) Soils

Prime farmland if subsoiled, completely removing the root inhibiting soil layer

Not prime farmland

Prime farmland if irrigated and the product of I (soil erodibility) x C (climate factor) does not exceed 60

All areas are prime farmland

Prime farmland if irrigated and reclaimed of excess salts and sodium

Soil Map Units Soil Ratings

Prime farmland if drained Prime farmland if protected from flooding or not frequently flooded during the growing season Prime farmland if irrigated Prime farmland if drained and either protected from flooding or not frequently flooded during the growing season Prime farmland if irrigated and drained Prime farmland if irrigated and either protected from flooding or not frequently flooded during the growing season

Farmland of statewide importance Farmland of local importance Farmland of unique importance Not rated or not available Political Features Municipalities Cities Urban Areas Water Features Oceans Streams and Canals Transportation

MAP INFORMATION Rails Roads Interstate Highways US Routes State Highways Local Roads Other Roads

Original soil survey map sheets were prepared at publication scale. Viewing scale and printing scale, however, may vary from the original. Please rely on the bar scale on each map sheet for proper map measurements. Source of Map: Natural Resources Conservation Service Web Soil Survey URL: http://websoilsurvey.nrcs.usda.gov Coordinate System: UTM Zone 15N This product is generated from the USDA-NRCS certified data as of the version date(s) listed below. Soil Survey Area: Wapello County, Iowa Survey Area Data: Version 14, Mar 17, 2008 Date(s) aerial images were photographed:

4/23/1994

The orthophoto or other base map on which the soil lines were compiled and digitized probably differs from the background imagery displayed on these maps. As a result, some minor shifting of map unit boundaries may be evident.

Custom Soil Resource Report

Table—Farmland Classification (Farmland Classification) Farmland Classification— Summary by Map Unit — Wapello County, Iowa Map unit symbol

Map unit name

Rating

Acres in AOI

Percent of AOI

11B

Colo-Ely silty clay loams, Prime farmland if drained 2 to 5 percent slopes

47.7

6.4%

51

Vesser silt loam, 0 to 2 percent slopes

Prime farmland if drained

49.5

6.6%

54

Zook silty clay loam, 0 to 2 percent slopes

Prime farmland if drained

2.7

0.4%

58G

Douds soils, 18 to 40 percent slopes

Not prime farmland

2.4

0.3%

93D2

Shelby-Adair clay loams, Farmland of statewide 9 to 14 percent slopes, importance moderately eroded

4.6

0.6%

130

Belinda silt loam, 0 to 2 percent slopes

Prime farmland if drained

0.9

0.1%

131B

Pershing silt loam, 2 to 5 percent slopes

All areas are prime farmland

18.8

2.5%

133

Colo silty clay loam, 0 to 2 Prime farmland if drained percent slopes

56.3

7.5%

192C2

Adair clay loam, 5 to 9 percent slopes, moderately eroded

Farmland of statewide importance

5.7

0.8%

192D2

Adair clay loam, 9 to 14 percent slopes, moderately eroded

Farmland of statewide importance

0.0

0.0%

220

Nodaway silt loam, 0 to 2 All areas are prime percent slopes farmland

35.3

4.7%

222C2

Clarinda silty clay loam, 5 Farmland of statewide to 9 percent slopes, importance moderately eroded

2.6

0.3%

223C2

Rinda silty clay loam, 5 to Farmland of statewide 9 percent slopes, importance moderately eroded

34.7

4.6%

269

Humeston silt loam, 0 to 2 Prime farmland if drained percent slopes

24.3

3.2%

276C2

Ladoga-Hedrick silt loams, 5 to 9 percent slopes, moderately eroded

Farmland of statewide importance

40.9

5.4%

279

Taintor silty clay loam, 0 to 2 percent slopes

Prime farmland if drained

1.9

0.2%

280

Mahaska silty clay loam, 0 All areas are prime to 2 percent slopes farmland

5.9

0.8%

281B

Otley silty clay loam, 2 to All areas are prime 5 percent slopes farmland

31.8

4.2%

281C

Otley silty clay loam, 5 to Farmland of statewide 9 percent slopes importance

41.5

5.5%

362

Haig silt loam, 0 to 2 percent slopes

1.8

0.2%

Prime farmland if drained

55

Custom Soil Resource Report

Farmland Classification— Summary by Map Unit — Wapello County, Iowa Map unit symbol

Map unit name

Rating

364B

Grundy silt loam, 2 to 5 percent slopes

All areas are prime farmland

451D2

Caleb loam, 7 to 14 percent slopes, moderately eroded

Farmland of statewide importance

453

Acres in AOI

Percent of AOI 3.5

0.5%

10.1

1.3%

Tuskeego silt loam, 0 to 2 Prime farmland if drained percent slopes

7.5

1.0%

581C2

Otley-Nira silty clay loams, 5 to 9 percent slopes, moderately eroded

Farmland of statewide importance

2.9

0.4%

592C2

Mystic silt loam, 5 to 9 percent slopes, moderately eroded

Farmland of statewide importance

7.8

1.0%

592D2

Mystic silt loam, 9 to 14 percent slopes, moderately eroded

Farmland of statewide importance

3.4

0.5%

594D2

Galland loam, 9 to 14 percent slopes, moderately eroded

Farmland of statewide importance

2.6

0.3%

688

Koszta silt loam, 0 to 2 percent slopes

All areas are prime farmland

13.7

1.8%

730B

Nodaway-Cantril All areas are prime complex, 2 to 5 percent farmland slopes

24.7

3.3%

731C2

Pershing silty clay loam, 5 Farmland of statewide to 9 percent slopes, importance moderately eroded

51.3

6.8%

792D2

Armstrong loam, 9 to 14 percent slopes, moderately eroded

Farmland of statewide importance

102.6

13.7%

876B

Ladoga silt loam, Farmland of statewide benches, 2 to 5 percent importance slopes

18.6

2.5%

876C

Ladoga silt loam, Farmland of statewide benches, 5 to 9 percent importance slopes

3.4

0.5%

876C2

Ladoga silt loam, Farmland of statewide benches, 5 to 9 percent importance slopes, moderately eroded

22.6

3.0%

880B

Clinton silt loam, All areas are prime benches, 2 to 5 percent farmland slopes

3.6

0.5%

880C2

Clinton silt loam, Farmland of statewide benches, 5 to 9 percent importance slopes, moderately eroded

16.7

2.2%

881B

Otley silty clay loam, All areas are prime benches, 2 to 5 percent farmland slopes

3.6

0.5%

56

Custom Soil Resource Report

Farmland Classification— Summary by Map Unit — Wapello County, Iowa Map unit symbol

Map unit name

Rating

881C2

Otley silty clay loam, Farmland of statewide benches, 5 to 9 percent importance slopes, moderately eroded

1220

Nodaway silt loam, channeled, 0 to 2 percent slopes

W

Water

Acres in AOI

Percent of AOI 5.6

0.8%

Not prime farmland

32.4

4.3%

Not prime farmland

4.3

0.6%

Totals for Area of Interest (AOI)

750.4

Rating Options—Farmland Classification (Farmland Classification) Aggregation Method: No Aggregation Necessary Tie-break Rule: Lower

Vegetative Productivity Vegetative productivity includes estimates of potential vegetative production for a variety of land uses, including cropland, forestland, hayland, pastureland, horticulture and rangeland. In the underlying database, some states maintain crop yield data by individual map unit component. Other states maintain the data at the map unit level. Attributes are included for both, although only one or the other is likely to contain data for any given geographic area. For other land uses, productivity data is shown only at the map unit component level. Examples include potential crop yields under irrigated and nonirrigated conditions, forest productivity, forest site index, and total rangeland production under of normal, favorable and unfavorable conditions.

Iowa Corn Suitability Rating (Wiegel CSR) This attribute is only applicable to soils in the state of Iowa. Corn suitability ratings (CSRs) provide a relative ranking of all soils mapped in the State of Iowa according to their potential for the intensive production of row crops. The CSR is an index that can be used to rate the potential yield of one soil against that of another over a period of time. Considered in the ratings are average weather conditions and frequency of use of the soil for row crops. Ratings range from 100 for soils that have no physical limitations, occur on minimal slopes, and can be continuously row cropped to as low as 5 for soils that are severely limited for the production of row crops. When the soils are rated, the following assumptions are made: a) adequate management, b) natural weather conditions (no irrigation), c) artificial drainage where required, d) no frequent flooding on the lower lying soils, and e) no land leveling or terracing. The weighted CSR for a given field can be modified by the occurrence of sandy spots, local deposits, rock and gravel outcrops, field boundaries, and

57

100.0%

Custom Soil Resource Report noncrossable drainageways. Even though predicted average yields will change with time, the CSRs are expected to remain relatively constant in relation to one another over time.

58

Custom Soil Resource Report Map—Iowa Corn Suitability Rating (Wiegel CSR)

4547700

594D2 594D2 W 880C2 880C2 880B 58G 28 1C

B 876

281 B

51

CO HWY H25

279

51 W C ed W 688 220

880C2 592D2

1 ar 220 C

51

45 3

1220

51 269

0 4547100

223C2

2 C

4547100

133

453

2 12

6 27

730B

560400

560700

0

150

300

600

0

500

1,000

2,000

131B

731C2 223C2

730B

130

561000

Meters 900 Feet 3,000

4546500

131B 731C2 223C2

731C2

223 C2

364B 731C2 362 223C2

223 C2 60TH AVE

131B

223C2

4546800

133

re ek

51

792D2

4546500

4548000

451D2

276C2

560100

93D2

4548300

C2 881C2

280

2 792D

192C2 581C2

4547700

11B

222C2

281B 876B 451D2 281C 87 876C2 6C 2 592C2 1 1B 592C2 26 222C2 9

54

133

280 281B

4546800

C2

451D2 876B

9 26

876B

688

281C

561600

51

4548300

60TH AVE

87 6

133

281B

881B 876C 881C2

51

51

133 51 453 451D2

9 26

4548000

54

876C2

4547400

281B 581C2

561300

4548600

561000

4547400

560700

19 2

560400

4548600

560100

561300

561600

Custom Soil Resource Report Legend—Iowa Corn Suitability Rating (Wiegel CSR)

MAP LEGEND Area of Interest (AOI) Area of Interest (AOI) Soils

MAP INFORMATION Original soil survey map sheets were prepared at publication scale. Viewing scale and printing scale, however, may vary from the original. Please rely on the bar scale on each map sheet for proper map measurements.

Soil Map Units Soil Ratings 20 AND 40 AND 63 AND 75 AND