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
3225Labu-Sansarc silty clays, 11 to 30 percent slopes...........................50
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
3225Labu-Sansarc silty clays, 11 to 30 percent slopes...........................73
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
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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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Map Scale: 1:83,000 if printed on A size (8.5" x 11") sheet.
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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)
Map Unit Symbol Map Unit Name Acres in AOI Percent of AOI
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)
Map Unit Symbol Map Unit Name Acres in AOI Percent of AOI
3220 Labu silty clay, 2 to 6 percent slopes 25.4 0.3%
3221 Labu silty clay, 6 to 11 percent slopes 13.8 0.2%
3225 Labu-Sansarc silty clays, 11 to 30 percent slopes 756.2 9.8%
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%
Totals for Area of Interest 7,678.4 100.0%
Keya Paha County, Nebraska (NE103)
Map Unit Symbol Map Unit Name Acres in AOI Percent of AOI
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%
3225 Labu-Sansarc silty clays, 11 to 30 percent slopes 2.7 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)
Map Unit Symbol Map Unit Name Acres in AOI Percent of AOI
9999 Water 1.0 0.0%
Subtotals for Soil Survey Area 22.6 0.3%
Totals for Area of Interest 7,678.4 100.0%
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
15 to 31 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
Across-slope shape: Linear
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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
Mean annual air temperature: 48 to 50 degrees F
Frost-free period: 140 to 160 days
Map Unit Composition
Inavale, occasionally flooded, and similar soils: 100 percent
Description of Inavale, Occasionally Flooded
SettingLandform: Flood plains
Down-slope shape: Linear
Across-slope shape: Linear
Parent material: Sandy alluvium
Properties and qualities
Slope: 0 to 3 percent
Depth to restrictive feature: More than 80 inches
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)
Depth to water table: More than 80 inches
Frequency of flooding: Occasional
Frequency of ponding: None
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
19 to 60 inches: Loamy fine sand
2322Inavale fine sand, channeled, frequently flooded
Map Unit Setting
Elevation: 1,200 to 2,000 feet
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Mean annual precipitation: 22 to 24 inches
Mean annual air temperature: 46 to 50 degrees F
Frost-free period: 135 to 160 days
Map Unit Composition
Inavale, channeled, frequently flooded, and similar soils: 95 percent
Minor components: 5 percent
Description of Inavale, Channeled, Frequently Flooded
Setting
Landform: Flood plains
Down-slope shape: Linear
Across-slope shape: Linear
Parent material: Sandy alluvium
Properties and qualities
Slope: 0 to 3 percent
Depth to restrictive feature: More than 80 inches
Drainage class: Excessively drained
Capacity of the most limiting layer to transmit water (Ksat): High to very high (5.95to 19.98 in/hr)
Depth to water table: More than 80 inches
Frequency of flooding: Frequent
Frequency of ponding: None
Available water capacity: Low (about 4.8 inches)
Interpretive groups
Farmland classification: Not prime farmland
Land capability (nonirrigated): 6w
Hydrologic Soil Group:A
Ecological site: Sandy Lowland (R066XY051NE)
Typical profile
0 to 6 inches: Fine sand6 to 12 inches: Fine sand
12 to 60 inches: Fine sand
Minor Components
Barney
Percent of map unit: 5 percent
Landform: Swales
Down-slope shape: Concave
Across-slope shape: Linear
Ecological site: Wet Land (R066XY044NE)
2325Inavale fine sand, 3 to 11 percent slopes
Map Unit Setting
Elevation: 1,250 to 2,000 feet
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Mean 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
Inavale and similar soils: 100 percent
Description of Inavale
Setting
Landform: Flood plains
Down-slope shape: Linear
Across-slope shape: Linear
Parent material: Sandy alluvium
Properties and qualities
Slope: 3 to 11 percent
Depth to restrictive feature: More than 80 inches
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)Depth to water table: More than 80 inches
Frequency of flooding: Rare
Frequency of ponding: None
Available water capacity: Low (about 4.8 inches)
Interpretive groups
Farmland classification: Not prime farmland
Land capability classification (irrigated): 4e
Land capability (nonirrigated): 6e
Hydrologic Soil Group:A
Ecological site: Sands 22-25 P.Z. (R066XY055NE)
Typical profile
0 to 6 inches: Fine sand6 to 12 inches: Fine sand
12 to 60 inches: Fine sand
2328Inavale fine sandy loam, occasionally flooded
Map Unit Setting
Elevation: 1,250 to 2,000 feet
Mean annual precipitation: 22 to 24 inchesMean annual air temperature: 48 to 50 degrees F
Frost-free period: 140 to 160 days
Map Unit Composition
Inavale, occasionally flooded, and similar soils: 100 percent
Description of Inavale, Occasionally Flooded
Setting
Landform: Flood plains
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Down-slope shape: Linear
Across-slope shape: Linear
Parent material: Sandy alluvium
Properties and qualities
Slope: 0 to 3 percent
Depth to restrictive feature: More than 80 inches
Drainage class: Excessively drainedCapacity 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
Frequency of flooding: Occasional
Frequency of ponding: None
Available water capacity: Moderate (about 6.2 inches)
Interpretive groups
Farmland classification: Farmland of statewide importance
Land capability classification (irrigated): 3e
Land capability (nonirrigated): 3e
Hydrologic Soil Group:A
Ecological site: Sandy Lowland (R066XY051NE)
Typical profile
0 to 16 inches: Fine sandy loam
16 to 26 inches: Fine sand
26 to 60 inches: Fine sand
3152Boyd silty clay, 6 to 11 percent slopes
Map Unit Setting
Elevation: 1,250 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
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
Properties and qualities
Slope: 6 to 11 percent
Depth to restrictive feature: 20 to 40 inches to paralithic bedrock
Drainage class: Well 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: More than 80 inches
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Frequency of flooding: None
Frequency of ponding: None
Calcium carbonate, maximum content: 10 percent
Gypsum, maximum content: 5 percent
Maximum salinity: Nonsaline (0.0 to 2.0 mmhos/cm)
Available water capacity: Low (about 3.1 inches)
Interpretive groupsFarmland classification: Not prime farmland
Land capability (nonirrigated): 4e
Hydrologic Soil Group: D
Ecological site: Clayey (R063BY011SD)
Typical profile
0 to 6 inches: Silty clay
6 to 22 inches: Clay
22 to 32 inches: Clay
32 to 60 inches: Weathered bedrock
3155Brocksburg fine sandy loam, 0 to 2 percent slopes
Map Unit Setting
Elevation: 1,200 to 2,000 feet
Mean annual precipitation: 22 to 24 inches
Mean annual air temperature: 46 to 50 degrees F
Frost-free period: 135 to 160 days
Map Unit Composition
Brocksburg and similar soils: 99 percent
Minor components: 1 percent
Description of Brocksburg
Setting
Landform: Flats
Down-slope shape: Linear
Across-slope shape: Linear
Parent material: Loamy alluvium over sandy and gravelly alluvium
Properties and qualities
Slope: 0 to 2 percent
Depth to restrictive feature: More than 80 inches
Drainage class: Well drainedCapacity of the most limiting layer to transmit water (Ksat): Moderately high to high
(0.20 to 2.00 in/hr)
Depth to water table: More than 80 inches
Frequency of flooding: None
Frequency of ponding: None
Available water capacity: Moderate (about 6.3 inches)
Interpretive groups
Farmland classification:All areas are prime farmland
Land capability classification (irrigated): 2e
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Land capability (nonirrigated): 2e
Hydrologic Soil Group: C
Ecological site: Sandy 22-25 P.Z. (R066XY054NE)
Typical profile
0 to 18 inches: Fine sandy loam
18 to 32 inches: Clay loam
32 to 60 inches: Gravelly sand
Minor Components
Scott, frequently ponded
Percent of map unit: 1 percent
Landform: Playas
Landform position (three-dimensional): Dip
Down-slope shape: Concave
Across-slope shape: Concave
Ecological site: Clayey Overflow (R063BY021SD)
3183Jansen loam, 0 to 2 percent slopes
Map Unit Setting
Elevation: 1,250 to 2,000 feet
Mean 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
Jansen and similar soils: 100 percent
Description of Jansen
Setting
Landform: Flats
Down-slope shape: Linear
Across-slope shape: Linear
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(0.20 to 2.00 in/hr)
Depth to water table: More than 80 inches
Frequency of flooding: None
Frequency of ponding: None
Available water capacity: Moderate (about 6.9 inches)
Interpretive groups
Farmland classification: Prime farmland if irrigated
Land capability classification (irrigated): 2s
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Land capability (nonirrigated): 2s
Hydrologic Soil Group: C
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
Elevation: 1,200 to 2,000 feet
Mean 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
Labu and similar soils: 99 percent
Minor components: 1 percent
Description of Labu
Setting
Landform: Hillslopes
Landform position (two-dimensional): Backslope, shoulder, summit
Down-slope shape: Convex, concave
Across-slope shape: Linear
Parent material: Residuum weathered from clayey shale
Properties and qualities
Slope: 6 to 11 percent
Depth to restrictive feature: 20 to 40 inches to paralithic bedrock
Drainage class: Well 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: More than 80 inches
Frequency of flooding: None
Frequency of ponding: None
Calcium carbonate, maximum content: 15 percent
Available water capacity: Low (about 3.3 inches)
Interpretive groups
Farmland classification: Not prime farmland
Land capability classification (irrigated): 4e
Land capability (nonirrigated): 4e
Hydrologic Soil Group: D
Ecological site: Clayey (R063BY011SD)
Typical profile
0 to 6 inches: Silty clay
6 to 34 inches: Clay
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34 to 60 inches: Weathered bedrock
Minor Components
Wt at 0-1 foot
Percent of map unit: 1 percent
Landform: Swales
Down-slope shape: ConcaveAcross-slope shape: Linear
3225Labu-Sansarc silty clays, 11 to 30 percent slopes
Map Unit Setting
Elevation: 1,200 to 2,000 feet
Mean annual precipitation: 22 to 24 inchesMean annual air temperature: 48 to 50 degrees F
Frost-free period: 140 to 160 days
Map Unit Composition
Labu and similar soils: 65 percent
Sansarc and similar soils: 34 percent
Minor components: 1 percent
Description of Labu
Setting
Landform: Hillslopes
Landform position (two-dimensional): Backslope
Down-slope shape: Convex, concave
Across-slope shape: Linear
Parent material: Residuum weathered from clayey shale
Properties and qualities
Slope: 11 to 30 percent
Depth to restrictive feature: 20 to 40 inches to paralithic bedrock
Drainage class: Well 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: More than 80 inches
Frequency of flooding: None
Frequency of ponding: None
Calcium carbonate, maximum content: 15 percentAvailable water capacity: Low (about 3.3 inches)
Interpretive groups
Farmland classification: Not prime farmland
Land capability (nonirrigated): 6e
Hydrologic Soil Group: D
Ecological site: Clayey (R063BY011SD)
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3240Mariaville-Paka loams, 11 to 40 percent slopes
Map Unit Setting
Elevation: 1,200 to 2,000 feet
Mean 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
Mariaville and similar soils: 55 percent
Paka and similar soils: 44 percent
Minor components: 1 percent
Description of Mariaville
Setting
Landform: Hillslopes
Landform position (two-dimensional): Backslope
Down-slope shape: Convex, concave
Across-slope shape: Linear
Parent material: Residuum weathered from siltstone
Properties and qualities
Slope: 15 to 40 percent
Depth to restrictive feature: 10 to 20 inches to paralithic bedrock
Drainage class: Well drainedCapacity of the most limiting layer to transmit water (Ksat): Moderately low (0.01 to
0.14 in/hr)
Depth to water table: More than 80 inches
Frequency of flooding: None
Frequency of ponding: None
Calcium carbonate, maximum content: 14 percent
Maximum salinity: Nonsaline (0.0 to 2.0 mmhos/cm)
Available water capacity: Low (about 3.0 inches)
Interpretive groups
Farmland classification: Not prime farmland
Land capability (nonirrigated): 6s
Hydrologic Soil Group: D
Ecological site: Shallow Limy (R066XY040NE)
Typical profile
0 to 5 inches: Loam
5 to 17 inches: Silty clay loam
17 to 60 inches: Weathered bedrock
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Description of Paka
Setting
Landform: Hillslopes
Landform position (two-dimensional): Summit, shoulder
Down-slope shape: Convex, concave
Across-slope shape: LinearParent material: Loamy residuum weathered from siltstone
Properties and qualities
Slope: 15 to 40 percent
Depth to restrictive feature: 40 to 60 inches to paralithic bedrock
Drainage class: Well drained
Capacity of the most limiting layer to transmit water (Ksat): Moderately low (0.01 to
0.14 in/hr)
Depth to water table: More than 80 inches
Frequency of flooding: None
Frequency of ponding: None
Calcium carbonate, maximum content: 5 percent
Available water capacity: High (about 9.7 inches)
Interpretive groups
Farmland classification: Not prime farmland
Land capability (nonirrigated): 6e
Hydrologic Soil Group: C
Ecological site: Loamy 22-25 P.Z. (R066XY058NE)
Other vegetative classification: Silty - Veg. zone 3 (066XY058NE)
Typical profile
0 to 8 inches: Loam
8 to 26 inches: Clay loam
26 to 48 inches: Silt loam
48 to 60 inches: Weathered bedrock
Minor Components
Wt at 0-1 foot
Percent of map unit: 1 percent
Landform: Swales
Down-slope shape: Concave
Across-slope shape: Linear
3260O'Neill fine sandy loam, 0 to 2 percent slopes
Map Unit Setting
Elevation: 1,250 to 2,000 feet
Mean annual precipitation: 22 to 24 inches
Mean annual air temperature: 48 to 50 degrees F
Frost-free period: 140 to 160 days
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Map Unit Composition
O'neill and similar soils: 100 percent
Description of O'neill
Setting
Landform: FlatsDown-slope shape: Linear
Across-slope shape: Linear
Parent material: Coarse-loamy alluvium over sandy and gravelly 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): High (1.98 to 5.95 in/hr)
Depth to water table: More than 80 inches
Frequency of flooding: None
Frequency of ponding: None
Available water capacity: Low (about 5.2 inches)
Interpretive groups
Farmland classification: Farmland of statewide importance
Land capability classification (irrigated): 3e
Land capability (nonirrigated): 3e
Hydrologic Soil Group:A
Ecological site: Sandy 22-25 P.Z. (R066XY054NE)
Typical profile
0 to 9 inches: Fine sandy loam
9 to 34 inches: Sandy loam
34 to 60 inches: Coarse sand
3284Paka fine sandy loam, 2 to 6 percent slopes
Map Unit Setting
Elevation: 1,200 to 2,000 feet
Mean annual precipitation: 22 to 24 inches
Mean annual air temperature: 46 to 50 degrees F
Frost-free period: 135 to 160 days
Map Unit CompositionPaka and similar soils: 99 percent
Minor components: 1 percent
Description of Paka
Setting
Landform: Hillslopes
Landform position (two-dimensional): Backslope, shoulder, summit
Down-slope shape: Convex, concave
Across-slope shape: Linear
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Parent material: Loamy residuum weathered from siltstone
Properties and qualities
Slope: 2 to 6 percent
Depth to restrictive feature: 40 to 60 inches to paralithic bedrock
Drainage class: Well drained
Capacity of the most limiting layer to transmit water (Ksat): Moderately low (0.01 to
0.14 in/hr)Depth to water table: More than 80 inches
Frequency of flooding: None
Frequency of ponding: None
Calcium carbonate, maximum content: 5 percent
Available water capacity: Moderate (about 8.9 inches)
Interpretive groups
Farmland classification:All areas are prime farmland
Land capability classification (irrigated): 3e
Land capability (nonirrigated): 3e
Hydrologic Soil Group: C
Ecological site: Sandy 22-25 P.Z. (R066XY054NE)
Typical profile
0 to 9 inches: Fine sandy loam
9 to 27 inches: Clay loam
27 to 46 inches: Silt loam
46 to 60 inches: Weathered bedrock
Minor Components
Scott, frequently ponded
Percent of map unit: 1 percent
Landform: Playas
Landform position (three-dimensional): Dip
Down-slope shape: Concave
Across-slope shape: ConcaveEcological site: Clayey Overflow (R063BY021SD)
3285Paka loam, 0 to 2 percent slopes
Map Unit Setting
Elevation: 1,200 to 2,000 feet
Mean annual precipitation: 22 to 24 inchesMean annual air temperature: 46 to 50 degrees F
Frost-free period: 135 to 160 days
Map Unit Composition
Paka and similar soils: 99 percent
Minor components: 1 percent
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Description of Paka
Setting
Landform: Flats
Down-slope shape: Linear
Across-slope shape: Linear
Parent material: Loamy residuum weathered from siltstone
Properties and qualities
Slope: 0 to 1 percent
Depth to restrictive feature: 40 to 60 inches to paralithic bedrock
Drainage class: Well drained
Capacity of the most limiting layer to transmit water (Ksat): Moderately low (0.01 to
0.14 in/hr)
Depth to water table: More than 80 inches
Frequency of flooding: None
Frequency of ponding: None
Calcium carbonate, maximum content: 5 percent
Available water capacity: High (about 9.7 inches)
Interpretive groups
Farmland classification:All areas are prime farmland
Land capability classification (irrigated): 1
Land capability (nonirrigated): 2c
Hydrologic Soil Group: C
Ecological site: Loamy 22-25 P.Z. (R066XY058NE)
Other vegetative classification: Silty - Veg. zone 3 (066XY058NE)
Typical profile
0 to 8 inches: Loam
8 to 26 inches: Silty clay loam
26 to 48 inches: Silt loam
48 to 60 inches: Weathered bedrock
Minor Components
Scott, frequently ponded
Percent of map unit: 1 percent
Landform: Playas
Landform position (three-dimensional): Dip
Down-slope shape: Concave
Across-slope shape: Concave
Ecological site: Clayey Overflow (R063BY021SD)
3287Paka loam, 6 to 11 percent slopes, eroded
Map Unit Setting
Elevation: 1,250 to 2,000 feet
Mean annual precipitation: 22 to 24 inches
Mean annual air temperature: 48 to 50 degrees F
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Frost-free period: 140 to 160 days
Map Unit Composition
Paka and similar soils: 100 percent
Description of Paka
SettingLandform: Hillslopes
Landform position (two-dimensional): Summit, shoulder, backslope
Down-slope shape: Convex, concave
Across-slope shape: Linear
Parent material: Loamy residuum weathered from siltstone
Properties and qualities
Slope: 6 to 11 percent
Depth to restrictive feature: 40 to 60 inches to paralithic bedrock
Drainage class: Well drained
Capacity of the most limiting layer to transmit water (Ksat): Moderately low (0.01 to
0.14 in/hr)
Depth to water table: More than 80 inchesFrequency of flooding: None
Frequency of ponding: None
Calcium carbonate, maximum content: 5 percent
Available water capacity: High (about 9.7 inches)
Interpretive groups
Farmland classification: Farmland of statewide importance
Land capability classification (irrigated): 4e
Land capability (nonirrigated): 3e
Hydrologic Soil Group: C
Ecological site: Loamy 22-25 P.Z. (R066XY058NE)
Other vegetative classification: Silty - Veg. zone 3 (066XY058NE)
Typical profile0 to 8 inches: Loam
8 to 26 inches: Clay loam
26 to 48 inches: Silt loam
48 to 60 inches: Weathered bedrock
3295Promise silty clay, 2 to 6 percent slopes
Map Unit SettingElevation: 1,250 to 2,000 feet
Mean 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
Promise and similar soils: 100 percent
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Description of Promise
Setting
Landform: Hillslopes
Down-slope shape: Convex, concave
Across-slope shape: Linear
Parent material: Clayey residuum weathered from shale
Properties and qualities
Slope: 2 to 6 percent
Depth to restrictive feature: More than 80 inches
Drainage class: Well 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: More than 80 inches
Frequency of flooding: None
Frequency of ponding: None
Calcium carbonate, maximum content: 10 percent
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
Available water capacity: Moderate (about 6.8 inches)
Interpretive groups
Farmland classification: Farmland of statewide importance
Land capability (nonirrigated): 3e
Hydrologic Soil Group: D
Ecological site: Clayey (R063BY011SD)
Typical profile
0 to 18 inches: Silty clay
18 to 33 inches: Clay
33 to 60 inches: Clay
3305Reliance silt loam, 2 to 6 percent slopes
Map Unit Setting
Elevation: 1,200 to 2,000 feet
Mean annual precipitation: 22 to 24 inches
Mean annual air temperature: 46 to 50 degrees F
Frost-free period: 135 to 160 days
Map Unit Composition
Reliance and similar soils: 99 percent
Minor components: 1 percent
Description of Reliance
Setting
Landform: Loess hills
Landform position (two-dimensional): Summit, shoulder, backslope
Down-slope shape: Convex
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Across-slope shape: Convex
Parent material: Loess
Properties and qualities
Slope: 2 to 6 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 to0.60 in/hr)
Depth to water table: More than 80 inches
Frequency of flooding: None
Frequency of ponding: None
Calcium carbonate, maximum content: 20 percent
Maximum salinity: Nonsaline (0.0 to 2.0 mmhos/cm)
Available water capacity: High (about 10.2 inches)
Interpretive groups
Farmland classification:All areas are prime farmland
Land capability classification (irrigated): 3e
Land capability (nonirrigated): 3e
Hydrologic Soil Group: CEcological site: Loamy 22-25 P.Z. (R066XY058NE)
Other vegetative classification: Silty - Veg. zone 3 (066XY058NE)
Typical profile
0 to 10 inches: Silt loam
10 to 28 inches: Silty clay loam
28 to 60 inches: Silt loam
Minor Components
Scott, frequently ponded
Percent of map unit: 1 percent
Landform: Playas
Landform position (three-dimensional): DipDown-slope shape: Concave
Across-slope shape: Concave
Ecological site: Clayey Overflow (R063BY021SD)
3341Wewela fine sandy loam, 2 to 6 percent slopes
Map Unit SettingElevation: 1,250 to 2,000 feet
Mean 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
Wewela and similar soils: 100 percent
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Description of Wewela
Setting
Landform: Hillslopes
Landform position (two-dimensional): Summit, shoulder, backslope
Down-slope shape: Convex, concave
Across-slope shape: LinearParent material: Loamy eolian deposits over clayey residuum weathered from clayey
shale
Properties and qualities
Slope: 2 to 6 percent
Depth to restrictive feature: 20 to 40 inches to paralithic bedrock
Drainage class: Well 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: More than 80 inches
Frequency of flooding: None
Frequency of ponding: None
Calcium carbonate, maximum content: 10 percentMaximum salinity: Nonsaline (0.0 to 2.0 mmhos/cm)
Available water capacity: Low (about 3.2 inches)
Interpretive groups
Farmland classification: Farmland of statewide importance
Land capability classification (irrigated): 3e
Land capability (nonirrigated): 3e
Hydrologic Soil Group: D
Ecological site: Sandy 22-25 P.Z. (R066XY054NE)
Typical profile
0 to 8 inches: Fine sandy loam
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
Elevation: 1,250 to 2,000 feet
Mean annual precipitation: 22 to 24 inches
Mean annual air temperature: 48 to 50 degrees FFrost-free period: 140 to 160 days
Map Unit Composition
Cass, occasionally flooded, and similar soils: 100 percent
Description of Cass, Occasionally Flooded
Setting
Landform: Flood plains
Down-slope shape: Linear
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Across-slope shape: Linear
Parent material: Sandy 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): High (2.00 to 6.00 in/hr)Depth to water table: More than 80 inches
Frequency of flooding: Occasional
Frequency of ponding: None
Available water capacity: Moderate (about 7.3 inches)
Interpretive groups
Farmland classification:All areas are prime farmland
Land capability classification (irrigated): 2w
Land capability (nonirrigated): 2w
Hydrologic Soil Group:A
Ecological site: Sandy Lowland (R066XY051NE)
Typical profile
0 to 12 inches: Fine sandy loam
12 to 26 inches: Fine sandy loam
26 to 60 inches: Stratified coarse sand to fine sandy loam
4241Ord fine sandy loam, occasionally flooded
Map Unit Setting
Elevation: 1,200 to 2,000 feet
Mean annual precipitation: 22 to 24 inchesMean annual air temperature: 46 to 50 degrees F
Frost-free period: 135 to 160 days
Map Unit Composition
Ord, occasionally flooded, and similar soils: 95 percent
Minor components: 5 percent
Description of Ord, Occasionally Flooded
Setting
Landform: Interdunes
Down-slope shape: Concave
Across-slope shape: LinearParent material: Stratified sandy 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): High (2.00 to 6.00 in/hr)
Depth to water table:About 18 to 36 inches
Frequency of flooding: Occasional
Frequency of ponding: None
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Calcium carbonate, maximum content: 40 percent
Maximum salinity: Nonsaline (0.0 to 2.0 mmhos/cm)
Sodium adsorption ratio, maximum: 5.0
Available water capacity: Moderate (about 6.1 inches)
Interpretive groups
Farmland classification: Prime farmland if drained
Land capability classification (irrigated): 2wLand capability (nonirrigated): 2w
Hydrologic Soil Group: B
Ecological site: Subirrigated (R066XY046NE)
Typical profile
0 to 11 inches: Fine sandy loam
11 to 30 inches: Fine sandy loam
30 to 60 inches: Stratified sand to loamy fine sand
Minor Components
Barney
Percent of map unit: 5 percent
Landform: Swales
Down-slope shape: Concave
Across-slope shape: Linear
Ecological site: Wet Land (R066XY044NE)
4485Dunday loamy fine sand, 0 to 3 percent slopes
Map Unit SettingElevation: 1,250 to 2,000 feet
Mean 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
Dunday and similar soils: 100 percent
Description of Dunday
Setting
Landform: Hummocks
Down-slope shape: ConvexAcross-slope shape: Convex
Properties and qualities
Slope: 0 to 3 percent
Depth to restrictive feature: More than 80 inches
Drainage class: Somewhat excessively drained
Capacity of the most limiting layer to transmit water (Ksat): High to very high (5.95
to 19.98 in/hr)
Depth to water table: More than 80 inches
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Frequency of flooding: None
Frequency of ponding: None
Available water capacity: Low (about 5.2 inches)
Interpretive groups
Farmland classification: Not prime farmland
Land capability classification (irrigated): 3e
Land capability (nonirrigated): 4eHydrologic Soil Group:A
Ecological site: Sandy 22-25 P.Z. (R066XY054NE)
Typical profile
0 to 15 inches: Loamy fine sand
15 to 60 inches: Fine sand
4488Dunday loamy fine sand, 3 to 6 percent slopes
Map Unit Setting
Elevation: 1,250 to 2,000 feet
Mean 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
Dunday and similar soils: 100 percent
Description of Dunday
Setting
Landform: DunesDown-slope shape: Convex
Across-slope shape: Convex
Properties and qualities
Slope: 3 to 6 percent
Depth to restrictive feature: More than 80 inches
Drainage class: Somewhat excessively drained
Capacity of the most limiting layer to transmit water (Ksat): High to very high (5.95
to 19.98 in/hr)
Depth to water table: More than 80 inches
Frequency of flooding: None
Frequency of ponding: None
Available water capacity: Low (about 5.2 inches)Interpretive groups
Farmland classification: Not prime farmland
Land capability classification (irrigated): 4e
Land capability (nonirrigated): 4e
Hydrologic Soil Group:A
Ecological site: Sandy 22-25 P.Z. (R066XY054NE)
Typical profile
0 to 15 inches: Loamy fine sand
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Mean annual air temperature: 48 to 50 degrees F
Frost-free period: 140 to 160 days
Map Unit Composition
Valentine and similar soils: 100 percent
Description of ValentineSetting
Landform: Dunes
Down-slope shape: Convex
Across-slope shape: Convex
Parent material: Eolian sands
Properties and qualities
Slope: 6 to 17 percent
Depth to restrictive feature: More than 80 inches
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)
Depth to water table: More than 80 inchesFrequency of flooding: None
Frequency of ponding: None
Available water capacity: Low (about 3.9 inches)
Interpretive groups
Farmland classification: Not prime farmland
Land capability (nonirrigated): 6e
Hydrologic Soil Group:A
Ecological site: Sands 22-25 P.Z. (R066XY055NE)
Typical profile
0 to 5 inches: Fine sand
5 to 11 inches: Fine sand
11 to 60 inches: Fine sand
4807Valentine fine sand, rolling
Map Unit Setting
Elevation: 1,750 to 2,600 feet
Mean annual precipitation: 20 to 22 inches
Mean annual air temperature: 45 to 48 degrees F
Frost-free period: 135 to 155 days
Map Unit Composition
Valentine and similar soils: 100 percent
Description of Valentine
Setting
Landform: Dunes
Down-slope shape: Convex
Across-slope shape: Convex
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Parent material: Eolian sands
Properties and qualities
Slope: 9 to 24 percent
Depth to restrictive feature: More than 80 inches
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)Depth to water table: More than 80 inches
Frequency of flooding: None
Frequency of ponding: None
Available water capacity: Low (about 3.7 inches)
Interpretive groups
Farmland classification: Not prime farmland
Land capability (nonirrigated): 6e
Hydrologic Soil Group:A
Ecological site: Sands 22-25 P.Z. (R066XY055NE)
Typical profile
0 to 7 inches: Fine sand
7 to 60 inches: Fine sand
4838Valentine loamy sand, 0 to 3 percent slopes
Map Unit Setting
Elevation: 1,250 to 2,000 feet
Mean 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
Valentine and similar soils: 100 percent
Description of Valentine
Setting
Landform: Hummocks
Down-slope shape: Convex
Across-slope shape: Convex
Parent material: Eolian sands
Properties and qualities
Slope: 0 to 3 percentDepth to restrictive feature: More than 80 inches
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)
Depth to water table: More than 80 inches
Frequency of flooding: None
Frequency of ponding: None
Available water capacity: Low (about 4.1 inches)
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Interpretive groups
Farmland classification: Not prime farmland
Land capability classification (irrigated): 4e
Land capability (nonirrigated): 4e
Hydrologic Soil Group:A
Ecological site: Sandy 22-25 P.Z. (R066XY054NE)
Typical profile
0 to 5 inches: Loamy sand
5 to 11 inches: Loamy sand
11 to 60 inches: Fine sand
6314Barney silt loam, channeled, frequently flooded
Map Unit Setting
Elevation: 1,250 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
Barney, channeled, frequently flooded, and similar soils: 100 percent
Description of Barney, Channeled, Frequently Flooded
Setting
Landform: Flood plains
Down-slope shape: Linear
Across-slope shape: LinearParent material: Loamy alluvium over sandy and gravelly alluvium
Properties and qualities
Slope: 0 to 2 percent
Depth to restrictive feature: More than 80 inches
Drainage class: Very 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
Calcium carbonate, maximum content: 5 percent
Available water capacity: Low (about 4.7 inches)Interpretive groups
Farmland classification: Not prime farmland
Land capability (nonirrigated): 5w
Hydrologic Soil Group: B/D
Ecological site: Wet Land (R066XY044NE)
Typical profile
0 to 5 inches: Silt loam
5 to 10 inches: Stratified sand to loam
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10 to 60 inches: Fine sand
6352Leshara silt loam, occasionally flooded
Map Unit Setting
Elevation: 1,200 to 2,000 feet
Mean 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
Leshara, occasionally flooded, and similar soils: 99 percent
Minor components: 1 percent
Description of Leshara, Occasionally Flooded
Setting
Landform: Flood plains
Down-slope shape: Linear
Across-slope shape: Linear
Parent material: Stratified loamy 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 36 inches
Frequency of flooding: OccasionalFrequency of ponding: None
Calcium carbonate, maximum content: 10 percent
Maximum salinity: Nonsaline (0.0 to 2.0 mmhos/cm)
Available water capacity: Very high (about 12.8 inches)
Interpretive groups
Farmland classification: Prime farmland if drained
Land capability classification (irrigated): 2w
Land capability (nonirrigated): 2w
Hydrologic Soil Group: C
Ecological site: Subirrigated (R066XY046NE)
Typical profile0 to 21 inches: Silt loam
21 to 32 inches: Silt loam
32 to 60 inches: Stratified silt loam to fine sand
Minor Components
Wt at 0-1 foot
Percent of map unit: 1 percent
Landform: Swales
Down-slope shape: Concave
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Across-slope shape: Linear
8435Cass loam, rarely flooded
Map Unit Setting
Elevation: 800 to 5,500 feet
Mean annual precipitation: 20 to 22 inches
Mean annual air temperature: 45 to 48 degrees F
Frost-free period: 135 to 155 days
Map Unit Composition
Cass, rarely flooded, and similar soils: 99 percent
Minor components: 1 percent
Description of Cass, Rarely Flooded
Setting
Landform: Flood plains
Down-slope shape: Linear
Across-slope shape: Linear
Parent material: Sandy 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: Rare
Frequency of ponding: None
Available water capacity: Moderate (about 8.7 inches)
Interpretive groups
Farmland classification: Prime farmland if irrigated
Land capability classification (irrigated): 1
Land capability (nonirrigated): 1
Hydrologic Soil Group: B
Ecological site: Sandy Lowland (R066XY051NE)
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
Percent of map unit: 1 percent
Landform: Swales
Down-slope shape: Concave
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Across-slope shape: Linear
8840Hall silt loam, 0 to 1 percent slopes
Map Unit Setting
Elevation: 1,200 to 2,000 feet
Mean 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
Hall and similar soils: 99 percent
Minor components: 1 percent
Description of Hall
Setting
Landform: Stream terraces
Landform position (three-dimensional): Tread
Down-slope shape: Linear
Across-slope shape: Linear
Parent material: Loess
Properties and qualities
Slope: 0 to 1 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
(0.20 to 2.00 in/hr)
Depth to water table: More than 80 inches
Frequency of flooding: None
Frequency of ponding: None
Calcium carbonate, maximum content: 5 percent
Available water capacity: High (about 11.2 inches)
Interpretive groups
Farmland classification:All areas are prime farmland
Land capability classification (irrigated): 1
Land capability (nonirrigated): 2c
Hydrologic Soil Group: C
Ecological site: Loamy Terrace (R066XY066NE)
Typical profile
0 to 5 inches: Silt loam
5 to 36 inches: Silty clay loam
36 to 42 inches: Silty clay loam
42 to 60 inches: Stratified silty clay loam to fine sandy loam
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Minor Components
Wt at 0-1 foot
Percent of map unit: 1 percent
Landform: Swales
Down-slope shape: Concave
Across-slope shape: Linear
8925Simeon loamy sand, 0 to 3 percent slopes
Map Unit Setting
Elevation: 1,250 to 2,000 feet
Mean annual precipitation: 22 to 24 inches
Mean annual air temperature: 48 to 50 degrees FFrost-free period: 140 to 160 days
Map Unit Composition
Simeon and similar soils: 100 percent
Description of Simeon
Setting
Landform: Flats
Down-slope shape: Linear
Across-slope shape: Linear
Parent material: Sandy and gravelly alluvium
Properties and qualitiesSlope: 0 to 2 percent
Depth to restrictive feature: More than 80 inches
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)
Depth to water table: More than 80 inches
Frequency of flooding: None
Frequency of ponding: None
Available water capacity: Low (about 4.9 inches)
Interpretive groups
Farmland classification: Not prime farmland
Land capability classification (irrigated): 4sLand capability (nonirrigated): 6s
Hydrologic Soil Group:A
Ecological site: Shallow to Gravel (R066XY062NE)
Typical profile
0 to 5 inches: Loamy sand
5 to 60 inches: Sand
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8946Simeon-Valentine loamy sands, 0 to 6 percent slopes
Map Unit Setting
Elevation: 1,250 to 2,000 feet
Mean 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
Simeon and similar soils: 55 percent
Valentine and similar soils: 45 percent
Description of Simeon
Setting
Landform: Swales
Down-slope shape: Concave
Across-slope shape: Linear
Parent material: Sandy and gravelly alluvium
Properties and qualities
Slope: 0 to 6 percent
Depth to restrictive feature: More than 80 inches
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)
Depth to water table: More than 80 inches
Frequency of flooding: None
Frequency of ponding: NoneAvailable water capacity: Low (about 5.2 inches)
Interpretive groups
Farmland classification: Not prime farmland
Land capability classification (irrigated): 4s
Land capability (nonirrigated): 6s
Hydrologic Soil Group:A
Ecological site: Shallow to Gravel (R066XY062NE)
Typical profile
0 to 15 inches: Loamy sand
15 to 60 inches: Coarse sand
Description of Valentine
Setting
Landform: Dunes
Down-slope shape: Convex
Across-slope shape: Convex
Parent material: Eolian sands
Properties and qualities
Slope: 0 to 6 percent
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Depth to restrictive feature: More than 80 inches
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)
Depth to water table: More than 80 inches
Frequency of flooding: None
Frequency of ponding: NoneAvailable water capacity: Low (about 4.1 inches)
Interpretive groups
Farmland classification: Not prime farmland
Land capability classification (irrigated): 4e
Land capability (nonirrigated): 6e
Hydrologic Soil Group:A
Ecological site: Sands 22-25 P.Z. (R066XY055NE)
Typical profile
0 to 5 inches: Loamy sand
5 to 11 inches: Fine sand
11 to 60 inches: Fine sand
9004Anselmo fine sandy loam, 3 to 6 percent slopes
Map Unit Setting
Elevation: 1,250 to 2,000 feet
Mean 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
Anselmo and similar soils: 100 percent
Description of Anselmo
Setting
Landform: Hillslopes
Landform position (two-dimensional): Backslope, shoulder, summit
Down-slope shape: Convex, concave
Across-slope shape: Linear
Parent material: Loamy eolian deposits
Properties and qualitiesSlope: 2 to 6 percent
Depth to restrictive feature: More than 80 inches
Drainage class: Well drained
Capacity of the most limiting layer to transmit water (Ksat): High (1.98 to 5.95 in/hr)
Depth to water table: More than 80 inches
Frequency of fl