USDA Soil Report

8/12/2019 USDA Soil Report

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United States

Department of

Agriculture

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

Boyd County, Nebraska,

Holt County, Nebraska, and

Keya Paha County,

Nebraska

Natural

Resources

Conservation

Service

December 7, 2012


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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 imposespecial 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.

Although soil survey information can be used for general farm, local, and wider area

planning, onsite investigationis needed to supplement this information in some cases.

Examples include soil quality assessments (http://soils.usda.gov/sqi/) and certain

conservation and engineering applications. For more detailed information, contact

your local USDA Service Center (http://offices.sc.egov.usda.gov/locator/app?

agency=nrcs) or your NRCS State Soil Scientist (http://soils.usda.gov/contact/

state_offices/).

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 availablethrough 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

2
http://soils.usda.gov/contact/state_offices/http://offices.sc.egov.usda.gov/locator/app?agency=nrcshttp://soils.usda.gov/contact/state_offices/http://soils.usda.gov/contact/state_offices/http://offices.sc.egov.usda.gov/locator/app?agency=nrcshttp://soils.usda.gov/sqi/http://soils.usda.gov/contact/state_offices/http://soils.usda.gov/contact/state_offices/http://offices.sc.egov.usda.gov/locator/app?agency=nrcshttp://offices.sc.egov.usda.gov/locator/app?agency=nrcshttp://soils.usda.gov/sqi/


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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..................................................................................6

Soil Map..................................................................................................................8

Soil Map................................................................................................................9

Legend................................................................................................................10

Map Unit Legend................................................................................................11

Map Unit Descriptions........................................................................................13

Boyd County, Nebraska..................................................................................15

1039Grigston silt loam, occasionally flooded...........................................15

2110Inavale loamy fine sand, occasionally flooded.................................162322Inavale fine sand, channeled, frequently flooded............................16

2325Inavale fine sand, 3 to 11 percent slopes........................................17

2328Inavale fine sandy loam, occasionally flooded.................................18

3152Boyd silty clay, 6 to 11 percent slopes.............................................19

3155Brocksburg fine sandy loam, 0 to 2 percent slopes.........................20

3183Jansen loam, 0 to 2 percent slopes.................................................21

3221Labu silty clay, 6 to 11 percent slopes.............................................22

3225Labu-Sansarc silty clays, 11 to 30 percent slopes...........................23

3240Mariaville-Paka loams, 11 to 40 percent slopes..............................25

3260O'Neill fine sandy loam, 0 to 2 percent slopes.................................26

3284Paka fine sandy loam, 2 to 6 percent slopes...................................27

3285Paka loam, 0 to 2 percent slopes....................................................28

3287Paka loam, 6 to 11 percent slopes, eroded.....................................29

3295Promise silty clay, 2 to 6 percent slopes..........................................30

3305Reliance silt loam, 2 to 6 percent slopes.........................................31

3341Wewela fine sandy loam, 2 to 6 percent slopes.......................... ....32

3521Cass fine sandy loam, occasionally flooded....................................33

4241Ord fine sandy loam, occasionally flooded......................................34

4485Dunday loamy fine sand, 0 to 3 percent slopes...............................35

4488Dunday loamy fine sand, 3 to 6 percent slopes...............................36

4496Dunday loamy fine sand, loamy substratum, 0 to 3 percent

slopes....................................................................................................37

4794Valentine fine sand, 9 to 17 percent slopes.....................................37

4807Valentine fine sand, rolling...............................................................38

4838Valentine loamy sand, 0 to 3 percent slopes...................................396314Barney silt loam, channeled, frequently flooded..............................40

6352Leshara silt loam, occasionally flooded...........................................41

8435Cass loam, rarely flooded................................................................42

8840Hall silt loam, 0 to 1 percent slopes.................................................43

8925Simeon loamy sand, 0 to 3 percent slopes......................................44

8946Simeon-Valentine loamy sands, 0 to 6 percent slopes....................45

9004Anselmo fine sandy loam, 3 to 6 percent slopes.............................46

9810Riverwash........................................................................................47

9999Water...............................................................................................48

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Holt County, Nebraska....................................................................................49

3220Labu silty clay, 2 to 6 percent slopes...............................................49

3221Labu silty clay, 6 to 11 percent slopes.............................................49


3231Lynch silty clay, 6 to 11 percent slopes...........................................52

3261O'Neill fine sandy loam, 2 to 6 percent slopes.................................53

3264O'Neill loam, 0 to 2 percent slopes..................................................543270O'Neill-Meadin fine sandy loams, 11 to 30 percent slopes..............54

3271O'Neill-Meadin fine sandy loams, 2 to 6 percent slopes..................56

4498Dunday loamy sand, 0 to 3 percent slopes......................................57

4882Valentine-Simeon sands, 9 to 30 percent slopes, eroded.............. .58

6320Barney-Boel-Calamus complex, channeled.....................................60

6665Brunswick-Pivot complex, 11 to 30 percent slopes............ .............62

8422Boel silty clay loam, overwash, occasionally flooded......................64

8425Boel-Inavale complex, channeled, frequently flooded.....................65

8925Simeon loamy sand, 0 to 3 percent slopes......................................67

9999Water...............................................................................................67

Keya Paha County, Nebraska.........................................................................69

2110Inavale loamy fine sand, occasionally flooded.................................69

2322Inavale fine sand, channeled, frequently flooded............................702325Inavale fine sand, 3 to 11 percent slopes........................................71

2360Munjor fine sandy loam, rarely flooded............................................71


4241Ord fine sandy loam, occasionally flooded......................................74

4807Valentine fine sand, rolling...............................................................75

8435Cass loam, rarely flooded................................................................76

8946Simeon-Valentine loamy sands, 0 to 6 percent slopes....................77

9999Water...............................................................................................79

Soil Information for All Uses...............................................................................80

Suitabilities and Limitations for Use....................................................................80

Building Site Development..............................................................................80

Corrosion of Steel........................................................................................80

Soil Reports........................................................................................................86Soil Chemical Properties.................................................................................86

Chemical Soil Properties.............................................................................86

Soil Physical Properties................................................................................103

Engineering Properties..............................................................................103

Physical Soil Properties.............................................................................130

References..........................................................................................................153

Custom Soil Resource Report

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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 otherliving 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 toidentify 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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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.

The objective of soil mapping is not to delineate pure map unit components; the

objective is to separate the landscape into landforms or landform segments that have

similar use and management requirements. Each map unit is defined by a unique

combination of soil components and/or miscellaneous areas in predictableproportions. Some components may be highly contrasting to the other components of

the map unit. The presence of minor components in a map unit in no way diminishes

the usefulness or accuracy of the data. The delineation of such landforms and

landform segments on the map provides sufficient information for the development of

resource plans. If intensive use of small areas is planned, onsite investigation is

needed to define and locate the soils and miscellaneous areas.

Soil scientists make many field observations in the process of producing a soil map.

The frequency of observation is dependent upon several factors, including scale of

mapping, intensity of mapping, design of map units, complexity of the landscape, and

experience of the soil scientist. Observations are made to test and refine the soil-

landscape model and predictions and to verify the classification of the soils at specific

locations. Once the soil-landscape model is refined, a significantly smaller number ofmeasurements of individual soil properties are made and recorded. These

measurements may include field measurements, such as those for color, depth to

bedrock, and texture, and laboratory measurements, such as those for content of

sand, silt, clay, salt, and other components. Properties of each soil typically vary from

one point to another across the landscape.

Observations for map unit components are aggregated to develop ranges of

characteristics for the components. The aggregated values are presented. Direct

measurements do not exist for every property presented for every map unit

component. Values for some properties are estimated from combinations of other

properties.

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 interpretthe 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, soilscientists 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 ReportSoil Map


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MAP LEGEND MAP INFORMATION

Area of Interest (AOI)

Area of Interest (AOI)

Soils

Soil Map Units

Special Point Features

Blowout

Borrow Pit

Clay Spot

Closed Depression

Gravel Pit

Gravelly Spot

Landfill

Lava Flow

Marsh or swamp

Mine or Quarry

Miscellaneous Water

Perennial Water

Rock Outcrop

Saline Spot

Sandy Spot

Severely Eroded Spot

Sinkhole

Slide or Slip

Sodic Spot

Spoil Area

Stony Spot

Very Stony Spot

Wet Spot

Other

Special Line Features

Gully

Short Steep Slope

Other

Political Features

Cities

PLSS Township and

Range

PLSS Section

Water Features

Streams and Canals

Transportation

Rails

Interstate Highways

US Routes

Major Roads

Map Scale: 1:83,000 if printed on A size (8.5" 11") sheet.

The soil surveys that comprise your AOI were mapped at 1:20,000.

Warning: Soil Map may not be valid at this scale.

Enlargement of maps beyond the scale of mapping can cause

misunderstanding of the detail of mapping and accuracy of soil line

placement. The maps do not show the small areas of contrasting

soils that could have been shown at a more detailed scale.

Please rely on the bar scale on each map sheet for accurate map

measurements.

Source of Map: Natural Resources Conservation Service

Web Soil Survey URL: http://websoilsurvey.nrcs.usda.gov

Coordinate System: UTM Zone 14N NAD83

This product is generated from the USDA-NRCS certified data as of

the version date(s) listed below.

Soil Survey Area: Boyd County, Nebraska

Survey Area Data: Version 12, Sep 27, 2012

Soil Survey Area: Holt County, Nebraska

Survey Area Data: Version 11, Sep 27, 2012

Soil Survey Area: Keya Paha County, Nebraska

Survey Area Data: Version 11, Jul 30, 2012

Your area of interest (AOI) includes more than one soil survey area.

These survey areas may have been mapped at different scales, with

a different land use in mind, at different times, or at different levels

of detail. This may result in map unit symbols, soil properties, and

interpretations that do not completely agree across soil survey area

boundaries.

Date(s) aerial images were photographed: 7/16/2006

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.



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Map Unit Legend

Boyd County, Nebraska (NE015)

Map Unit Symbol Map Unit Name Acres in AOI Percent of AOI

1039 Grigston silt loam, occasionally flooded 37.6 0.5%

2110 Inavale loamy fine sand, occasionally flooded 108.6 1.4%

2322 Inavale fine sand, channeled, frequently flooded 3.3 0.0%

2325 Inavale fine sand, 3 to 11 percent slopes 49.9 0.7%

2328 Inavale fine sandy loam, occasionally flooded 40.1 0.5%

3152 Boyd silty clay, 6 to 11 percent slopes 4.0 0.1%

3155 Brocksburg fine sandy loam, 0 to 2 percent slopes 97.8 1.3%

3183 Jansen loam, 0 to 2 percent slopes 115.3 1.5%

3221 Labu silty clay, 6 to 11 percent slopes 120.5 1.6%

3225 Labu-Sansarc silty clays, 11 to 30 percent slopes 667.6 8.7%

3240 Mariaville-Paka loams, 11 to 40 percent slopes 240.9 3.1%

3260 O'Neill fine sandy loam, 0 to 2 percent slopes 50.1 0.7%

3284 Paka fine sandy loam, 2 to 6 percent slopes 98.5 1.3%

3285 Paka loam, 0 to 2 percent slopes 13.2 0.2%

3287 Paka loam, 6 to 11 percent slopes, eroded 18.9 0.2%

3295 Promise silty clay, 2 to 6 percent slopes 31.3 0.4%

3305 Reliance silt loam, 2 to 6 percent slopes 8.5 0.1%

3341 Wewela fine sandy loam, 2 to 6 percent slopes 118.2 1.5%

3521 Cass fine sandy loam, occasionally flooded 69.0 0.9%4241 Ord fine sandy loam, occasionally flooded 56.9 0.7%

4485 Dunday loamy fine sand, 0 to 3 percent slopes 112.0 1.5%

4488 Dunday loamy fine sand, 3 to 6 percent slopes 172.3 2.2%

4496 Dunday loamy fine sand, loamy substratum, 0 to

3 percent slopes

33.0 0.4%

4794 Valentine fine sand, 9 to 17 percent slopes 1,224.4 15.9%

4807 Valentine fine sand, rolling 82.8 1.1%

4838 Valentine loamy sand, 0 to 3 percent slopes 432.7 5.6%

6314 Barney silt loam, channeled, frequently flooded 14.1 0.2%

6352 Leshara silt loam, occasionally flooded 24.2 0.3%

8435 Cass loam, rarely flooded 13.7 0.2%

8840 Hall silt loam, 0 to 1 percent slopes 17.5 0.2%

8925 Simeon loamy sand, 0 to 3 percent slopes 795.4 10.4%

8946 Simeon-Valentine loamy sands, 0 to 6 percent

slopes

1,200.7 15.6%

9004 Anselmo fine sandy loam, 3 to 6 percent slopes 7.2 0.1%

9810 Riverwash 31.6 0.4%


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Boyd County, Nebraska (NE015)


9999 Water 124.6 1.6%

Subtotals for Soil Survey Area 6,236.5 81.2%

Totals for Area of Interest 7,678.4 100.0%

Holt County, Nebraska (NE089)





3231 Lynch silty clay, 6 to 11 percent slopes 3.8 0.0%

3261 O'Neill fine sandy loam, 2 to 6 percent slopes 23.9 0.3%

3264 O'Neill loam, 0 to 2 percent slopes 159.9 2.1%

3270 O'Neill-Meadin fine sandy loams, 11 to 30 percent

slopes

44.8 0.6%

3271 O'Neill-Meadin fine sandy loams, 2 to 6 percent

slopes

3.8 0.0%

4498 Dunday loamy sand, 0 to 3 percent slopes 5.1 0.1%

4882 Valentine-Simeon sands, 9 to 30 percent slopes,

eroded

54.4 0.7%

6320 Barney-Boel-Calamus complex, channeled 50.2 0.7%

6665 Brunswick-Pivot complex, 11 to 30 percent slopes 8.7 0.1%

8422 Boel silty clay loam, overwash, occasionally

flooded

52.4 0.7%

8425 Boel-Inavale complex, channeled, frequently

flooded

100.7 1.3%

8925 Simeon loamy sand, 0 to 3 percent slopes 12.4 0.2%

9999 Water 103.4 1.3%

Subtotals for Soil Survey Area 1,419.1 18.5%


Keya Paha County, Nebraska (NE103)


2110 Inavale loamy fine sand, occasionally flooded 3.5 0.0%

2322 Inavale fine sand, channeled, frequently flooded 0.6 0.0%

2325 Inavale fine sand, 3 to 11 percent slopes 2.6 0.0%

2360 Munjor fine sandy loam, rarely flooded 0.7 0.0%


4241 Ord fine sandy loam, occasionally flooded 5.1 0.1%

4807 Valentine fine sand, rolling 1.3 0.0%

8435 Cass loam, rarely flooded 4.4 0.1%

8946 Simeon-Valentine loamy sands, 0 to 6 percent

slopes

0.6 0.0%


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Keya Paha County, Nebraska (NE103)


9999 Water 1.0 0.0%

Subtotals for Soil Survey Area 22.6 0.3%


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 segmentson 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.


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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 commonlyindicates 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 complexconsists 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 associationis 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 practicalor necessary to map the soils or miscellaneous areas separately. The pattern and

relative proportion of the soils or miscellaneous areas are somewhat similar. Alpha-

Beta association, 0 to 2 percent slopes, is an example.

An undifferentiated groupis 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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Boyd County, Nebraska

1039Grigston silt loam, occasionally flooded

Map Unit Setting

Elevation: 1,200 to 2,000 feetMean annual precipitation: 22 to 24 inches

Mean annual air temperature: 48 to 50 degrees F

Frost-free period: 140 to 160 days

Map Unit Composition

Grigston, occasionally flooded, and similar soils: 99 percent

Minor components: 1 percent

Description of Grigston, Occasionally Flooded

Setting

Landform: Flood plains

Down-slope shape: Linear

Across-slope shape: Linear

Parent material: Calcareous alluvium

Properties and qualities

Slope: 0 to 2 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 to high

(0.60 to 2.00 in/hr)

Depth to water table: More than 80 inches

Frequency of flooding: Occasional

Frequency of ponding: None

Calcium carbonate, maximum content: 10 percent

Available water capacity: Very high (about 12.1 inches)

Interpretive groups

Farmland classification:All areas are prime farmland

Land capability classification (irrigated): 2w

Land capability (nonirrigated): 2w

Hydrologic Soil Group: B

Ecological site: Loamy Terrace (R066XY066NE)

Typical profile

0 to 15 inches: Silt loam


31 to 60 inches: Stratified loam to fine sandy loam

Minor Components

Wt at 0-1 foot

Percent of map unit: 1 percent

Landform: Swales

Down-slope shape: Concave



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2110Inavale loamy fine sand, occasionally flooded

Map Unit Setting

Elevation: 1,250 to 2,000 feet

Mean annual precipitation: 22 to 24 inches




Inavale, occasionally flooded, and similar soils: 100 percent

Description of Inavale, Occasionally Flooded

SettingLandform: Flood plains



Parent material: Sandy alluvium




Drainage class: Excessively drained

Capacity of the most limiting layer to transmit water (Ksat): High to very high (5.95

to 19.98 in/hr)




Available water capacity: Low (about 5.2 inches)

Interpretive groups

Farmland classification: Not prime farmland

Land capability classification (irrigated): 3e

Land capability (nonirrigated): 4e

Hydrologic Soil Group:A

Ecological site: Sandy Lowland (R066XY051NE)

Typical profile

0 to 9 inches: Loamy fine sand

9 to 19 inches: Fine sand


2322Inavale fine sand, channeled, frequently flooded

Map Unit Setting



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Inavale, channeled, frequently flooded, and similar soils: 95 percent


Description of Inavale, Channeled, Frequently Flooded

Setting









Capacity of the most limiting layer to transmit water (Ksat): High to very high (5.95to 19.98 in/hr)


Frequency of flooding: Frequent



Interpretive groups





Typical profile

0 to 6 inches: Fine sand6 to 12 inches: Fine sand


Minor Components

Barney


Landform: Swales



Ecological site: Wet Land (R066XY044NE)

2325Inavale fine sand, 3 to 11 percent slopes

Map Unit Setting



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Inavale and similar soils: 100 percent

Description of Inavale

Setting










to 19.98 in/hr)Depth to water table: More than 80 inches

Frequency of flooding: Rare



Interpretive groups





Ecological site: Sands 22-25 P.Z. (R066XY055NE)

Typical profile

0 to 6 inches: Fine sand6 to 12 inches: Fine sand


2328Inavale fine sandy loam, occasionally flooded

Map Unit Setting


Mean annual precipitation: 22 to 24 inchesMean annual air temperature: 48 to 50 degrees F



Inavale, occasionally flooded, and similar soils: 100 percent

Description of Inavale, Occasionally Flooded

Setting



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Drainage class: Excessively drainedCapacity of the most limiting layer to transmit water (Ksat): High (2.00 to 6.00 in/hr)




Available water capacity: Moderate (about 6.2 inches)

Interpretive groups

Farmland classification: Farmland of statewide importance





Typical profile

0 to 16 inches: Fine sandy loam



3152Boyd silty clay, 6 to 11 percent slopes

Map Unit Setting





Boyd and similar soils: 100 percent

Description of Boyd

Setting

Landform: Hillslopes

Landform position (two-dimensional): Backslope, summit, shoulder

Down-slope shape: Convex, concaveAcross-slope shape: Linear

Parent material: Residuum weathered from clayey shale



Depth to restrictive feature: 20 to 40 inches to paralithic bedrock


Capacity of the most limiting layer to transmit water (Ksat): Very low to moderately

low (0.00 to 0.06 in/hr)



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Frequency of flooding: None



Gypsum, maximum content: 5 percent

Maximum salinity: Nonsaline (0.0 to 2.0 mmhos/cm)


Interpretive groupsFarmland classification: Not prime farmland


Hydrologic Soil Group: D

Ecological site: Clayey (R063BY011SD)

Typical profile

0 to 6 inches: Silty clay

6 to 22 inches: Clay


32 to 60 inches: Weathered bedrock

3155Brocksburg fine sandy loam, 0 to 2 percent slopes

Map Unit Setting






Brocksburg and similar soils: 99 percent


Description of Brocksburg

Setting

Landform: Flats



Parent material: Loamy alluvium over sandy and gravelly alluvium




Drainage class: Well drainedCapacity of the most limiting layer to transmit water (Ksat): Moderately high to high

(0.20 to 2.00 in/hr)





Interpretive groups




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Hydrologic Soil Group: C

Ecological site: Sandy 22-25 P.Z. (R066XY054NE)

Typical profile


18 to 32 inches: Clay loam

32 to 60 inches: Gravelly sand

Minor Components

Scott, frequently ponded


Landform: Playas

Landform position (three-dimensional): Dip


Across-slope shape: Concave

Ecological site: Clayey Overflow (R063BY021SD)

3183Jansen loam, 0 to 2 percent slopes

Map Unit Setting






Jansen and similar soils: 100 percent

Description of Jansen

Setting

Landform: Flats







Capacity of the most limiting layer to transmit water (Ksat): Moderately high to high(0.20 to 2.00 in/hr)





Interpretive groups

Farmland classification: Prime farmland if irrigated

Land capability classification (irrigated): 2s


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Land capability (nonirrigated): 2s


Ecological site: Loamy 22-25 P.Z. (R066XY058NE)

Other vegetative classification: Silty - Veg. zone 3 (066XY058NE)

Typical profile

0 to 13 inches: Loam

13 to 32 inches: Clay loam32 to 60 inches: Gravelly coarse sand

3221Labu silty clay, 6 to 11 percent slopes

Map Unit Setting






Labu and similar soils: 99 percent


Description of Labu

Setting


Landform position (two-dimensional): Backslope, shoulder, summit

Down-slope shape: Convex, concave








low (0.00 to 0.06 in/hr)






Interpretive groups






Typical profile




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Minor Components

Wt at 0-1 foot


Landform: Swales

Down-slope shape: ConcaveAcross-slope shape: Linear

3225Labu-Sansarc silty clays, 11 to 30 percent slopes

Map Unit Setting





Labu and similar soils: 65 percent

Sansarc and similar soils: 34 percent


Description of Labu

Setting


Landform position (two-dimensional): Backslope









low (0.00 to 0.06 in/hr)




Calcium carbonate, maximum content: 15 percentAvailable water capacity: Low (about 3.3 inches)

Interpretive groups






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3240Mariaville-Paka loams, 11 to 40 percent slopes

Map Unit Setting






Mariaville and similar soils: 55 percent

Paka and similar soils: 44 percent


Description of Mariaville

Setting


Landform position (two-dimensional): Backslope



Parent material: Residuum weathered from siltstone




Drainage class: Well drainedCapacity of the most limiting layer to transmit water (Ksat): Moderately low (0.01 to

0.14 in/hr)







Interpretive groups




Ecological site: Shallow Limy (R066XY040NE)

Typical profile

0 to 5 inches: Loam

5 to 17 inches: Silty clay loam



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Description of Paka

Setting


Landform position (two-dimensional): Summit, shoulder


Across-slope shape: LinearParent material: Loamy residuum weathered from siltstone





Capacity of the most limiting layer to transmit water (Ksat): Moderately low (0.01 to

0.14 in/hr)





Available water capacity: High (about 9.7 inches)

Interpretive groups






Typical profile

0 to 8 inches: Loam




Minor Components

Wt at 0-1 foot


Landform: Swales



3260O'Neill fine sandy loam, 0 to 2 percent slopes

Map Unit Setting






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O'neill and similar soils: 100 percent

Description of O'neill

Setting

Landform: FlatsDown-slope shape: Linear


Parent material: Coarse-loamy alluvium over sandy and gravelly alluvium





Capacity of the most limiting layer to transmit water (Ksat): High (1.98 to 5.95 in/hr)





Interpretive groups






Typical profile


9 to 34 inches: Sandy loam

34 to 60 inches: Coarse sand

3284Paka fine sandy loam, 2 to 6 percent slopes

Map Unit Setting





Map Unit CompositionPaka and similar soils: 99 percent


Description of Paka

Setting






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Parent material: Loamy residuum weathered from siltstone






0.14 in/hr)Depth to water table: More than 80 inches





Interpretive groups






Typical profile





Minor Components



Landform: Playas



Across-slope shape: ConcaveEcological site: Clayey Overflow (R063BY021SD)

3285Paka loam, 0 to 2 percent slopes

Map Unit Setting








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Description of Paka

Setting

Landform: Flats









0.14 in/hr)






Interpretive groups


Land capability classification (irrigated): 1

Land capability (nonirrigated): 2c




Typical profile

0 to 8 inches: Loam




Minor Components



Landform: Playas





3287Paka loam, 6 to 11 percent slopes, eroded

Map Unit Setting





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Description of Paka

SettingLandform: Hillslopes

Landform position (two-dimensional): Summit, shoulder, backslope









0.14 in/hr)

Depth to water table: More than 80 inchesFrequency of flooding: None




Interpretive groups







Typical profile0 to 8 inches: Loam




3295Promise silty clay, 2 to 6 percent slopes

Map Unit SettingElevation: 1,250 to 2,000 feet





Promise and similar soils: 100 percent


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Description of Promise

Setting




Parent material: Clayey residuum weathered from shale






low (0.00 to 0.06 in/hr)





Gypsum, maximum content: 10 percent

Maximum salinity: Nonsaline to very slightly saline (2.0 to 4.0 mmhos/cm)Sodium adsorption ratio, maximum: 6.0


Interpretive groups





Typical profile




3305Reliance silt loam, 2 to 6 percent slopes

Map Unit Setting






Reliance and similar soils: 99 percent


Description of Reliance

Setting

Landform: Loess hills


Down-slope shape: Convex


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Across-slope shape: Convex

Parent material: Loess





Capacity of the most limiting layer to transmit water (Ksat): Moderately high (0.20 to0.60 in/hr)







Interpretive groups




Hydrologic Soil Group: CEcological site: Loamy 22-25 P.Z. (R066XY058NE)


Typical profile




Minor Components



Landform: Playas

Landform position (three-dimensional): DipDown-slope shape: Concave



3341Wewela fine sandy loam, 2 to 6 percent slopes






Wewela and similar soils: 100 percent


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Description of Wewela

Setting




Across-slope shape: LinearParent material: Loamy eolian deposits over clayey residuum weathered from clayey

shale






low (0.00 to 0.06 in/hr)




Calcium carbonate, maximum content: 10 percentMaximum salinity: Nonsaline (0.0 to 2.0 mmhos/cm)


Interpretive groups






Typical profile


8 to 15 inches: Sandy clay loam

15 to 22 inches: Clay22 to 60 inches: Weathered bedrock

3521Cass fine sandy loam, occasionally flooded

Map Unit Setting



Mean annual air temperature: 48 to 50 degrees FFrost-free period: 140 to 160 days


Cass, occasionally flooded, and similar soils: 100 percent

Description of Cass, Occasionally Flooded

Setting




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Capacity of the most limiting layer to transmit water (Ksat): High (2.00 to 6.00 in/hr)Depth to water table: More than 80 inches




Interpretive groups






Typical profile



26 to 60 inches: Stratified coarse sand to fine sandy loam

4241Ord fine sandy loam, occasionally flooded

Map Unit Setting





Ord, occasionally flooded, and similar soils: 95 percent


Description of Ord, Occasionally Flooded

Setting

Landform: Interdunes


Across-slope shape: LinearParent material: Stratified sandy alluvium




Drainage class: Somewhat poorly drained


Depth to water table:About 18 to 36 inches




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Sodium adsorption ratio, maximum: 5.0


Interpretive groups

Farmland classification: Prime farmland if drained

Land capability classification (irrigated): 2wLand capability (nonirrigated): 2w


Ecological site: Subirrigated (R066XY046NE)

Typical profile



30 to 60 inches: Stratified sand to loamy fine sand

Minor Components

Barney


Landform: Swales




4485Dunday loamy fine sand, 0 to 3 percent slopes






Dunday and similar soils: 100 percent

Description of Dunday

Setting

Landform: Hummocks

Down-slope shape: ConvexAcross-slope shape: Convex




Drainage class: Somewhat excessively drained


to 19.98 in/hr)



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Interpretive groups



Land capability (nonirrigated): 4eHydrologic Soil Group:A


Typical profile



4488Dunday loamy fine sand, 3 to 6 percent slopes

Map Unit Setting






Dunday and similar soils: 100 percent

Description of Dunday

Setting

Landform: DunesDown-slope shape: Convex





Drainage class: Somewhat excessively drained


to 19.98 in/hr)




Available water capacity: Low (about 5.2 inches)Interpretive groups






Typical profile



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Valentine and similar soils: 100 percent

Description of ValentineSetting

Landform: Dunes



Parent material: Eolian sands






to 19.98 in/hr)

Depth to water table: More than 80 inchesFrequency of flooding: None



Interpretive groups





Typical profile




4807Valentine fine sand, rolling

Map Unit Setting







Description of Valentine

Setting

Landform: Dunes




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to 19.98 in/hr)Depth to water table: More than 80 inches




Interpretive groups





Typical profile



4838Valentine loamy sand, 0 to 3 percent slopes

Map Unit Setting








Setting

Landform: Hummocks





Slope: 0 to 3 percentDepth to restrictive feature: More than 80 inches



to 19.98 in/hr)






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Interpretive groups






Typical profile

0 to 5 inches: Loamy sand



6314Barney silt loam, channeled, frequently flooded

Map Unit Setting





Barney, channeled, frequently flooded, and similar soils: 100 percent

Description of Barney, Channeled, Frequently Flooded

Setting



Across-slope shape: LinearParent material: Loamy alluvium over sandy and gravelly alluvium




Drainage class: Very poorly drained


(0.60 to 2.00 in/hr)


Frequency of flooding: Frequent



Available water capacity: Low (about 4.7 inches)Interpretive groups



Hydrologic Soil Group: B/D


Typical profile


5 to 10 inches: Stratified sand to loam


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6352Leshara silt loam, occasionally flooded

Map Unit Setting






Leshara, occasionally flooded, and similar soils: 99 percent


Description of Leshara, Occasionally Flooded

Setting




Parent material: Stratified loamy alluvium




Drainage class: Somewhat poorly drained


(0.60 to 2.00 in/hr)


Frequency of flooding: OccasionalFrequency of ponding: None



Available water capacity: Very high (about 12.8 inches)

Interpretive groups

Farmland classification: Prime farmland if drained




Ecological site: Subirrigated (R066XY046NE)

Typical profile0 to 21 inches: Silt loam


32 to 60 inches: Stratified silt loam to fine sand

Minor Components

Wt at 0-1 foot


Landform: Swales



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8435Cass loam, rarely flooded

Map Unit Setting

Elevation: 800 to 5,500 feet





Cass, rarely flooded, and similar soils: 99 percent


Description of Cass, Rarely Flooded

Setting










(0.60 to 2.00 in/hr)


Frequency of flooding: Rare



Interpretive groups

Farmland classification: Prime farmland if irrigated


Land capability (nonirrigated): 1



Typical profile

0 to 10 inches: Loam10 to 40 inches: Fine sandy loam

40 to 60 inches: Stratified loamy fine sand to loam

Minor Components

Wt at 0-1 foot


Landform: Swales



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8840Hall silt loam, 0 to 1 percent slopes

Map Unit Setting






Hall and similar soils: 99 percent


Description of Hall

Setting

Landform: Stream terraces

Landform position (three-dimensional): Tread



Parent material: Loess






(0.20 to 2.00 in/hr)






Interpretive groups



Land capability (nonirrigated): 2c


Ecological site: Loamy Terrace (R066XY066NE)

Typical profile




42 to 60 inches: Stratified silty clay loam to fine sandy loam


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Minor Components

Wt at 0-1 foot


Landform: Swales



8925Simeon loamy sand, 0 to 3 percent slopes

Map Unit Setting



Mean annual air temperature: 48 to 50 degrees FFrost-free period: 140 to 160 days


Simeon and similar soils: 100 percent

Description of Simeon

Setting

Landform: Flats



Parent material: Sandy and gravelly alluvium

Properties and qualitiesSlope: 0 to 2 percent




to 19.98 in/hr)





Interpretive groups


Land capability classification (irrigated): 4sLand capability (nonirrigated): 6s


Ecological site: Shallow to Gravel (R066XY062NE)

Typical profile


5 to 60 inches: Sand


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8946Simeon-Valentine loamy sands, 0 to 6 percent slopes

Map Unit Setting






Simeon and similar soils: 55 percent


Description of Simeon

Setting

Landform: Swales



Parent material: Sandy and gravelly alluvium






to 19.98 in/hr)



Frequency of ponding: NoneAvailable water capacity: Low (about 5.2 inches)

Interpretive groups


Land capability classification (irrigated): 4s



Ecological site: Shallow to Gravel (R066XY062NE)

Typical profile


15 to 60 inches: Coarse sand


Setting

Landform: Dunes







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to 19.98 in/hr)



Frequency of ponding: NoneAvailable water capacity: Low (about 4.1 inches)

Interpretive groups






Typical profile




9004Anselmo fine sandy loam, 3 to 6 percent slopes

Map Unit Setting






Anselmo and similar soils: 100 percent

Description of Anselmo

Setting





Parent material: Loamy eolian deposits

Properties and qualitiesSlope: 2 to 6 percent





Frequency of fl

Documents

USDA Soil Report