HomeMy WebLinkAbout20250170.tiffUSDA United States
Department of
Agriculture
N
ACS
Natural
Resources
Conservation
Service
A product of the National
Cooperative Soil Survey,
a joint effort of the United
States Department of
Agriculture and other
Federal agencies, State
agencies including the
Agricultural Experiment
Stations, and local
participants
Custom Soil Resource
Report for
Adams County Area, Parts
of Adams and Denver
Counties, Colorado; and
Weld County, Colorado,
Southern Part
September 2, 2024
Preface
Soil surveys contain information that affects land use planning in survey areas.
They highlight soil limitations that affect various land uses and provide information
about the properties of the soils in the survey areas. Soil surveys are designed for
many different users, including farmers, ranchers, foresters, agronomists, urban
planners, community officials, engineers, developers, builders, and home buyers.
Also, conservationists, teachers, students, and specialists in recreation, waste
disposal, and pollution control can use the surveys to help them understand,
protect, or enhance the environment.
Various land use regulations of Federal, State, and local governments may impose
special restrictions on land use or land treatment. Soil surveys identify soil
properties that are used in making various land use or land treatment decisions.
The information is intended to help the land users identify and reduce the effects of
soil limitations on various land uses. The landowner or user is responsible for
identifying and complying with existing laws and regulations.
Although soil survey information can be used for general farm, local, and wider area
planning, onsite investigation is needed to supplement this information in some
cases. Examples include soil quality assessments (http://www.nrcs.usda.gov/wps/
portal/nrcs/main/soils/health/) and certain conservation and engineering
applications. For more detailed information, contact your local USDA Service Center
(https://offices.sc.egov.usda.gov/locator/app?agency=nrcs) or your NRCS State Soil
Scientist (http://www.nres.usda.gov/wps/portal/nres/detail/soils/contactus/?
cid=nrcs142p2_053951).
142p2_053951).
Great differences in soil properties can occur within short distances. Some soils are
seasonally wet or subject to flooding. Some are too unstable to be used as a
foundation for buildings or roads. Clayey or wet soils are poorly suited to use as
septic tank absorption fields. A high water table makes a soil poorly suited to
basements or underground installations.
The National Cooperative Soil Survey is a joint effort of the United States
Department of Agriculture and other Federal agencies, State agencies including the
Agricultural Experiment Stations, and local agencies. The Natural Resources
Conservation Service (NRCS) has leadership for the Federal part of the National
Cooperative Soil Survey.
Information about soils is updated periodically. Updated information is available
through the NRCS Web Soil Survey, the site for 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
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alternative means for communication of program information (Braille, large print,
audiotape, etc.) should contact USDA's TARGET Center at (202) 720-2600 (voice
and TDD). To file a complaint of discrimination, write to USDA, Director, Office of
Civil Rights, 1400 Independence Avenue, S.W., Washington, D.C. 20250-9410 or
call (800) 795-3272 (voice) or (202) 720-6382 (TDD). USDA is an equal opportunity
provider and employer.
3
Contents
Preface 2
How Soil Surveys Are Made 5
Soil Map 8
Soil Map (Soil Map) 9
Legend 10
Map Unit Legend (Soil Map) 12
Map Unit Descriptions (Soil Map) 12
Adams County Area, Parts of Adams and Denver Counties, Colorado 15
PIB Platner loam, 0 to 3 percent slopes 15
Weld County, Colorado, Southern Part 17
4 Aquolls and Aquepts, flooded 17
33 Kim loam, 3 to 5 percent slopes 18
40 Nunn loam, 1 to 3 percent slopes 20
78 Weld loam, 0 to 1 percent slopes 21
79 Weld loam, 1 to 3 percent slopes 23
82 —Wiley -Colby complex, 1 to 3 percent slopes 25
83 —Wiley -Colby complex, 3 to 5 percent slopes 27
Soil Information for All Uses 29
Suitabilities and Limitations for Use 29
Construction Materials 29
Gravel Source (Gravel Rating) 29
Sand Source (Sand Source) 36
Land Classifications 43
Farmland Classification (Farmland Classification) 43
Soil Properties and Qualities 49
Soil Qualities and Features 49
Hydrologic Soil Group (Hydrologic Soil Group) 49
References 55
4
How Soil Surveys Are Made
Soil surveys are made to provide information about the soils and miscellaneous
areas in a specific area. They include a description of the soils and miscellaneous
areas and their location on the landscape and tables that show soil properties and
limitations affecting various uses. Soil scientists observed the steepness, length,
and shape of the slopes; the general pattern of drainage; the kinds of crops and
native plants; and the kinds of bedrock. They observed and described many soil
profiles. A soil profile is the sequence of natural layers, or horizons, in a soil. The
profile extends from the surface down into the unconsolidated material in which the
soil formed or from the surface down to bedrock. The unconsolidated material is
devoid of roots and other living organisms and has not been changed by other
biological activity.
Currently, soils are mapped according to the boundaries of major land resource
areas (MLRAs). MLRAs are geographically associated land resource units that
share common characteristics related to physiography, geology, climate, water
resources, soils, biological resources, and land uses (USDA, 2006). Soil survey
areas typically consist of parts of one or more MLRA.
The soils and miscellaneous areas in a survey area occur in an orderly pattern that
is related to the geology, landforms, relief, climate, and natural vegetation of the
area. Each kind of soil and miscellaneous area is associated with a particular kind
of landform or with a segment of the landform. By observing the soils and
miscellaneous areas in the survey area and relating their position to specific
segments of the landform, a soil scientist develops a concept, or model, of how they
were formed. Thus, during mapping, this model enables the soil scientist to predict
with a considerable degree of accuracy the kind of soil or miscellaneous area at a
specific location on the landscape.
Commonly, individual soils on the landscape merge into one another as their
characteristics gradually change. To construct an accurate soil map, however, soil
scientists must determine the boundaries between the soils. They can observe only
a limited number of soil profiles. Nevertheless, these observations, supplemented
by an understanding of the soil -vegetation -landscape relationship, are sufficient to
verify predictions of the kinds of soil in an area and to determine the boundaries.
Soil scientists recorded the characteristics of the soil profiles that they studied. They
noted soil color, texture, size and shape of soil aggregates, kind and amount of rock
fragments, distribution of plant roots, reaction, and other features that enable them
to identify soils. After describing the soils in the survey area and determining their
properties, the soil scientists assigned the soils to taxonomic classes (units).
Taxonomic classes are concepts. Each taxonomic class has a set of soil
characteristics with precisely defined limits. The classes are used as a basis for
comparison to classify soils systematically. Soil taxonomy, the system of taxonomic
classification used in the United States, is based mainly on the kind and character
of soil properties and the arrangement of horizons within the profile. After the soil
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Custom Soil Resource Report
scientists classified and named the soils in the survey area, they compared the
individual soils with similar soils in the same taxonomic class in other areas so that
they could confirm data and assemble additional data based on experience and
research.
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 predictable
proportions. 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 of measurements 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
interpret the data from these analyses and tests as well as the field -observed
characteristics and the soil properties to determine the expected behavior of the
soils under different uses. Interpretations for all of the soils are field tested through
observation of the soils in different uses and under different levels of management.
Some interpretations are modified to fit local conditions, and some new
interpretations are developed to meet local needs. Data are assembled from other
sources, such as research information, production records, and field experience of
specialists. For example, data on crop yields under defined levels of management
are assembled from farm records and from field or plot experiments on the same
kinds of soil.
Predictions about soil behavior are based not only on soil properties but also on
such variables as climate and biological activity. Soil conditions are predictable over
long periods of time, but they are not predictable from year to year. For example,
soil scientists can predict with a fairly high degree of accuracy that a given soil will
have a high water table within certain depths in most years, but they cannot predict
that a high water table will always be at a specific level in the soil on a specific date.
After soil scientists located and identified the significant natural bodies of soil in the
survey area, they drew the boundaries of these bodies on aerial photographs and
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Custom Soil Resource Report
identified each as a specific map unit. Aerial photographs show trees, buildings,
fields, roads, and rivers, all of which help in locating boundaries accurately.
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.
8
40° 1' 27' N
'
4
1
4
i
s
i
39° 59' 53" N
104° 52' 31" W
104° 52'31'W
N
A
Custom Soil Resource Report
Soil Map (Soil Map)
Map Scale: 1:14,200 if printed on A portrait (8.5" x 11") sheet.
0
200 400
800
Meters
1200
Feet
0 500 1000 2000 3000
Map projection: Web Mercator Corner coordinates: WGS84 Edge tics: UTM Zone 13N WGS84
512200
104° 50' 58" W
104° 50' 58" w'
8
4
4
4
s
ti
40°
1' 27' N
39° 59' 53" N
9
Custom Soil Resource Report
MAP LEGEND
Area of Interest (AO!)
Area of Interest (AO1)
Soils
C
Soil Map Unit Polygons
Soil Map Unit Lines
Soil Map Unit Points
Special Point Features
r,
O
0
v
C. 4
4
104
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
V
a
Spoil Area
Stony Spot
Very Stony Spot
Wet Spot
Other
Special Line Features
Water Features
Streams and Canals
Transportation
Rails
Interstate Highways
US Routes
Major Roads
Local Roads
Background
Aerial Photography
MAP INFORMATION
The soil surveys that comprise your AOI were mapped at scales
ranging from 1:20,000 to 1:24,000.
Please rely on the bar scale on each map sheet for map
measurements.
Source of Map: Natural Resources Conservation Service
Web Soil Survey URL:
Coordinate System: Web Mercator (EPSG:3857)
Maps from the Web Soil Survey are based on the Web Mercator
projection, which preserves direction and shape but distorts
distance and area. A projection that preserves area, such as the
Albers equal-area conic projection, should be used if more
accurate calculations of distance or area are required.
This product is generated from the USDA-NRCS certified data as
of the version date(s) listed below.
Soil Survey Area: Adams County Area, Parts of Adams and
Denver Counties, Colorado
Survey Area Data: Version 20, Aug 24, 2023
Soil Survey Area: Weld County, Colorado, Southern Part
Survey Area Data: Version 22, Aug 24, 2023
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.
Soil map units are labeled (as space allows) for map scales
1:50,000 or larger.
Date(s) aerial images were photographed: Mar 1, 2023 Sep 1,
2023
The orthophoto or other base map on which the soil lines were
compiled and digitized probably differs from the background
Custom Soil Resource Report
MAP LEGEND MAP INFORMATION
imagery displayed on these maps. As a result, some minor
shifting of map unit boundaries may be evident.
Custom Soil Resource Report
Map Unit Legend (Soil Map)
Map
Unit Symbol
Map Unit Name
Acres in AOI
Percent of AOI
PIB
Platner
slopes
loam, 0 to 3
percent
0.2
0.0%
Subtotals for Soil Survey Area
0.2
0.0%
Totals for Area of Interest
414.8
100.0%
Map
Unit Symbol
Map
Unit
Name
Acres in AOI
Percent of AOI
4
Aquolls
and Aquepts, flooded
23.6
5.7%
33
Kim loam, 3 to 5
percent slopes
5.3
1.3%
40
Nunn
slopes
loam, 1 to 3
percent
200.4
48.3%
78
Weld
slopes
loam, 0 to 1
percent
31.0
7.5%
79
Weld
slopes
loam, 1 to 3
percent
123.3
29.7%
82
Wiley
-Colby complex,
percent slopes
1 to 3
20.3
4.9%
83
Wiley
-Colby complex,
percent slopes
3 to 5
10.8
2.6%
Subtotals for Soil Survey Area
414.6
100.0%
Totals for Area of Interest
414.8
100.0%
Map Unit Descriptions (Soil Map)
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
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Custom Soil Resource Report
particular map unit description. Other minor components, however, have properties
and behavioral characteristics divergent enough to affect use or to require different
management. These are called contrasting, or dissimilar, components. They
generally are in small areas and could not be mapped separately because of the
scale used. Some small areas of strongly contrasting soils or miscellaneous areas
are identified by a special symbol on the maps. If included in the database for a
given area, the contrasting minor components are identified in the map unit
descriptions along with some characteristics of each. A few areas of minor
components may not have been observed, and consequently they are not
mentioned in the descriptions, especially where the pattern was so complex that it
was impractical to make enough observations to identify all the soils and
miscellaneous areas on the landscape.
The presence of minor components in a map unit in no way diminishes the
usefulness or accuracy of the data. The objective of mapping is not to delineate
pure taxonomic classes but rather to separate the landscape into landforms or
landform segments that have similar use and management requirements. The
delineation of such segments on the map provides sufficient information for the
development of resource plans. If intensive use of small areas is planned, however,
onsite investigation is needed to define and locate the soils and miscellaneous
areas.
An identifying symbol precedes the map unit name in the map unit descriptions.
Each description includes general facts about the unit and gives important soil
properties and qualities.
Soils that have profiles that are almost alike make up a soil series. Except for
differences in texture of the surface layer, all the soils of a series have major
horizons that are similar in composition, thickness, and arrangement.
Soils of one series can differ in texture of the surface layer, slope, stoniness,
salinity, degree of erosion, and other characteristics that affect their use. On the
basis of such differences, a soil series is divided into soil phases. Most of the areas
shown on the detailed soil maps are phases of soil series. The name of a soil phase
commonly indicates a feature that affects use or management. For example, Alpha
silt loam, 0 to 2 percent slopes, is a phase of the Alpha series.
Some map units are made up of two or more major soils or miscellaneous areas.
These map units are complexes, associations, or undifferentiated groups.
A complex consists of two or more soils or miscellaneous areas in such an intricate
pattern or in such small areas that they cannot be shown separately on the maps.
The pattern and proportion of the soils or miscellaneous areas are somewhat similar
in all areas. Alpha -Beta complex, 0 to 6 percent slopes, is an example.
An association is made up of two or more geographically associated soils or
miscellaneous areas that are shown as one unit on the maps. Because of present
or anticipated uses of the map units in the survey area, it was not considered
practical or necessary to map the soils or miscellaneous areas separately. The
pattern and relative proportion of the soils or miscellaneous areas are somewhat
similar. Alpha -Beta association, 0 to 2 percent slopes, is an example.
An undifferentiated group is made up of two or more soils or miscellaneous areas
that could be mapped individually but are mapped as one unit because similar
interpretations can be made for use and management. The pattern and proportion
of the soils or miscellaneous areas in a mapped area are not uniform. An area can
be made up of only one of the major soils or miscellaneous areas, or it can be made
up of all of them. Alpha and Beta soils, 0 to 2 percent slopes, is an example.
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Custom Soil Resource Report
Some surveys include miscellaneous areas. Such areas have little or no soil
material and support little or no vegetation. Rock outcrop is an example.
Custom Soil Resource Report
Adams County Area, Parts of Adams and Denver Counties, Colorado
PIB Platner loam, 0 to 3 percent slopes
Map Unit Setting
National map unit symbol: 2tIn0
Elevation: 4,000 to 4,930 feet
Mean annual precipitation: 14 to 17 inches
Mean annual air temperature: 46 to 50 degrees F
Frost -free period: 135 to 160 days
Farmland classification: Prime farmland if irrigated
Map Unit Composition
Platner and similar soils: 85 percent
Minor components: 15 percent
Estimates are based on observations, descriptions, and transects of the mapunit.
Description of Platner
Setting
Landform: I me rf l uves
Landform position (two-dimensional): Summit
Landform position (three-dimensional): Interfluve
Down -slope shape: Linear
Across -slope shape: Linear
Parent material: Mixed eolian deposits over tertiary aged alluvium derived from
igneous, metamorphic and sedimentary rock
Typical profile
Ap - 0 to 6 inches: loam
Bt1 - 6 to 11 inches: clay
Bt2 - 11 to 20 inches: clay
Bk1 - 20 to 27 inches: loam
Bk2 - 27 to 37 inches: sandy clay loam
C - 37 to 80 inches: sandy clay loam
Properties and qualities
Slope: 0 to 3 percent
Depth to restrictive feature: More than 80 inches
Drainage class: Well drained
Runoff class: Medium
Capacity of the most limiting layer to transmit water (Ksat): Moderately low to
moderately high (0.06 to 0.20 in/hr)
Depth to water table: More than 80 inches
Frequency of flooding: None
Frequency of ponding: None
Calcium carbonate, maximum content: 15 percent
Maximum salinity: Nonsaline (0.0 to 1.0 mmhos/cm)
Available water supply, 0 to 60 inches: Moderate (about 8.1 inches)
Interpretive groups
Land capability classification (irrigated): 3s
Land capability classification (non irrigated): 4s
Hydrologic Soil Group: C
Ecological site: R067BY002CO - Loamy Plains
Custom Soil Resource Report
Hydric soil rating: No
Minor Components
Ascalon
Percent of map unit: 10 percent
Landform: I me rf l uves
Landform position (two-dimensional): Summit, shoulder
Landform position (three-dimensional): Interfluve
Down -slope shape: Linear
Across -slope shape: Linear
Ecological site: R067BY002CO - Loamy Plains
Hydric soil rating: No
Rago, rarely flooded
Percent of map unit: 4 percent
Landform: Drainageways
Landform position (two-dimensional): Toeslope
Landform position (three-dimensional): Head slope, base slope
Down -slope shape: Linear
Across -slope shape: Concave
Ecological site: R067BY036CO - Overflow
Hydric soil rating: No
Rago, ponded
Percent of map unit: 1 percent
Landform: Playas
Landform position (two-dimensional): Summit
Landform position (three-dimensional): Interfluve
Down -slope shape: Concave
Across -slope shape: Concave
Ecological site: R067BY010CO - Closed Depression
Hydric soil rating: No
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Custom Soil Resource Report
Weld County, Colorado, Southern Part
4—Aquolls and Aquepts, flooded
Map Unit Setting
National map unit symbol: 3621
Elevation: 3,600 to 4,700 feet
Mean annual precipitation: 12 to 16 inches
Mean annual air temperature: 50 to 55 degrees F
Frost -free period: 100 to 165 days
Farmland classification: Prime farmland if drained and either protected from flooding
or not frequently flooded during the growing season
Map Unit Composition
Aquolls and similar soils: 55 percent
Aquepts, flooded, and similar soils: 25 percent
Minor components: 20 percent
Estimates are based on observations, descriptions, and transects of the mapunit.
Description of Aquolls
Setting
Landform: Drainageways, plains, depressions
Down -slope shape: Linear
Across -slope shape: Linear
Parent material: Recent alluvium
Typical profile
HI - 0 to 8 inches: variable
H2 - 8 to 60 inches: stratified sandy loam to clay
Properties and qualities
Slope: 0 to 3 percent
Depth to restrictive feature: More than 80 inches
Drainage class: Poorly drained
Runoff class: Very low
Capacity of the most limiting layer to transmit water (Ksat): Moderately low to high
(0.06 to 6.00 in/hr)
Depth to water table: About 6 to 36 inches
Frequency of flooding: Frequent
Frequency of ponding: None
Calcium carbonate, maximum content: 10 percent
Maximum salinity: Moderately saline to strongly saline (8.0 to 16.0 mmhos/cm)
Sodium adsorption ratio, maximum: 5.0
Available water supply, 0 to 60 inches: Low (about 4.7 inches)
Interpretive groups
Land capability classification (irrigated): 6w
Land capability classification (non irrigated): 6w
Hydrologic Soil Group: D
Ecological site: R067BY035CO - Salt Meadow
Hydric soil rating: Yes
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Custom Soil Resource Report
Description of Aquepts, Flooded
Setting
Landform: Stream terraces
Down -slope shape: Linear
Across -slope shape: Linear
Parent material: Recent alluvium
Typical profile
HI - 0 to 8 inches: variable
H2 - 8 to 60 inches: stratified sandy loam to clay
Properties and qualities
Slope: 0 to 3 percent
Depth to restrictive feature: More than 80 inches
Drainage class: Poorly drained
Runoff class: Very low
Capacity of the most limiting layer to transmit water (Ksat): Moderately low to high
(0.06 to 6.00 in/hr)
Depth to water table: About 6 to 36 inches
Frequency of flooding: Frequent
Frequency of ponding: None
Calcium carbonate, maximum content: 10 percent
Maximum salinity: Moderately saline to strongly saline (8.0 to 16.0 mmhos/cm)
Sodium adsorption ratio, maximum: 5.0
Available water supply, 0 to 60 inches: Low (about 4.7 inches)
Interpretive groups
Land capability classification (irrigated): 6w
Land capability classification (nonirrigated): 6w
Hydrologic Soil Group: D
Ecological site: R067BY038CO - Wet Meadow
Hydric soil rating: Yes
Minor Components
Thedalund
Percent of map unit: 10 percent
Hydric soil rating: No
Haverson
Percent of map unit: 10 percent
Hydric soil rating: No
33 Kim loam, 3 to 5 percent slopes
Map Unit Setting
National map unit symbol: 362c
Elevation: 4,900 to 5,250 feet
Mean annual precipitation: 13 to 17 inches
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Custom Soil Resource Report
Mean annual air temperature: 46 to 52 degrees F
Frost -free period: 125 to 150 days
Farmland classification: Farmland of statewide importance
Map Unit Composition
Kim and similar soils: 90 percent
Minor components: 10 percent
Estimates are based on observations, descriptions, and transects of the mapunit.
Description of Kim
Setting
Landform: Alluvial fans, plains
Down -slope shape: Linear
Across -slope shape: Linear
Parent material: Mixed eolian deposits derived from sedimentary rock
Typical profile
H1 - 0 to 12 inches: loam
H2 - 12 to 40 inches: loam
H3 - 40 to 60 inches: fine sandy loam
Properties and qualities
Slope: 3 to 5 percent
Depth to restrictive feature: More than 80 inches
Drainage class: Well drained
Runoff class: Very low
Capacity of the most limiting layer to transmit water (Ksat): Moderately high to high
(0.57 to 5.95 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 supply, 0 to 60 inches: Moderate (about 9.0 inches)
Interpretive groups
Land capability classification (irrigated): 3e
Land capability classification (non irrigated): 4e
Hydrologic Soil Group: A
Ecological site: R067BY002CO - Loamy Plains
Hydric soil rating: No
Minor Components
Otero
Percent of map unit: 10 percent
Hydric soil rating: No
Custom Soil Resource Report
40 Nunn loam, 1 to 3 percent slopes
Map Unit Setting
National map unit symbol: 2t1n2
Elevation: 3,900 to 6,250 feet
Mean annual precipitation: 13 to 16 inches
Mean annual air temperature: 46 to 54 degrees F
Frost -free period: 135 to 160 days
Farmland classification: Prime farmland if irrigated
Map Unit Composition
Nunn and similar soils: 85 percent
Minor components: 15 percent
Estimates are based on observations, descriptions, and transects of the mapunit.
Description of Nunn
Setting
Landform: Terraces
Landform position (three-dimensional): Tread
Down -slope shape: Linear
Across -slope shape: Linear
Parent material: Pleistocene aged alluvium and/or eolian deposits
Typical profile
Ap - 0 to 6 inches: loam
Btl - 6 to 10 inches: clay loam
Bt2 - 10 to 26 inches: clay loam
Btk - 26 to 31 inches: clay loam
Bk1 - 31 to 47 inches: loam
Bk2 - 47 to 80 inches: loam
Properties and qualities
Slope: 1 to 3 percent
Depth to restrictive feature: More than 80 inches
Drainage class: Well drained
Runoff class: Medium
Capacity of the most limiting layer to transmit water (Ksat): Moderately low to
moderately high (0.06 to 0.20 in/hr)
Depth to water table: More than 80 inches
Frequency of flooding: None
Frequency of ponding: None
Calcium carbonate, maximum content: 7 percent
Maximum salinity: Nonsaline (0.1 to 1.0 mmhos/cm)
Sodium adsorption ratio, maximum: 0.5
Available water supply, 0 to 60 inches: High (about 9.2 inches)
Interpretive groups
Land capability classification (irrigated): 3e
Land capability classification (non irrigated): 4e
20
Custom Soil Resource Report
Hydrologic Soil Group: C
Ecological site: R067BY002CO - Loamy Plains
Hydric soil rating: No
Minor Components
Wages
Percent of map unit: 8 percent
Landform: Alluvial fans, terraces
Landform position (three-dimensional): Tread
Down -slope shape: Linear
Across -slope shape: Linear
Ecological site: R067BY002CO - Loamy Plains
Hydric soil rating: No
Fort collins
Percent of map unit: 5 percent
Landform: Terraces
Landform position (three-dimensional): Tread
Down -slope shape: Linear
Across -slope shape: Linear
Ecological site: R067BY002CO - Loamy Plains
Hydric soil rating: No
Haverson, very rarely flooded
Percent of map unit: 2 percent
Landform: Alluvial fans, drainageways, terraces
Landform position (three-dimensional): Tread
Down -slope shape: Linear
Across -slope shape: Linear, concave
Ecological site: R067BY036CO - Overflow
Hydric soil rating: No
78 Weld loam, 0 to 1 percent slopes
Map Unit Setting
National map unit symbol: 2x0hy
Elevation: 3,600 to 5,750 feet
Mean annual precipitation: 12 to 17 inches
Mean annual air temperature: 46 to 54 degrees F
Frost -free period: 115 to 155 days
Farmland classification: Prime farmland if irrigated
Map Unit Composition
Weld and similar soils: 80 percent
Minor components: 20 percent
Estimates are based on observations, descriptions, and transects of the mapunit.
Custom Soil Resource Report
Description of Weld
Setting
Landform: I me rf l uves
Landform position (two-dimensional): Summit
Landform position (three-dimensional): Interfluve
Down -slope shape: Linear
Across -slope shape: Linear
Parent material: Calcareous loess
Typical profile
Ap - 0 to 8 inches: loam
Bt1 - 8 to 12 inches: clay
Bt2 - 12 to 15 inches: clay loam
Btk - 15 to 28 inches: loam
Bk - 28 to 60 inches: silt loam
C - 60 to 80 inches: silt loam
Properties and qualities
Slope: 0 to 1 percent
Depth to restrictive feature: More than 80 inches
Drainage class: Well drained
Runoff class: Low
Capacity of the most limiting layer to transmit water (Ksat): Moderately low to
moderately high (0.06 to 0.20 in/hr)
Depth to water table: More than 80 inches
Frequency of flooding: None
Frequency of ponding: None
Calcium carbonate, maximum content: 14 percent
Maximum salinity: Nonsaline to very slightly saline (0.1 to 2.0 mmhos/cm)
Sodium adsorption ratio, maximum: 5.0
Available water supply, 0 to 60 inches: High (about 11.3 inches)
Interpretive groups
Land capability classification (irrigated): 2c
Land capability classification (non irrigated): 3c
Hydrologic Soil Group: C
Ecological site: R067BY002CO - Loamy Plains
Hydric soil rating: No
Minor Components
Colby
Percent of map unit: 8 percent
Landform: Hillslopes
Landform position (two-dimensional): Backslope
Landform position (three-dimensional): Side slope
Down -slope shape: Convex
Across -slope shape: Convex
Ecological site: R067BY002CO - Loamy Plains
Hydric soil rating: No
Wiley
Percent of map unit: 7 percent
Landform: ImerfIuves
Landform position (two-dimensional): Shoulder
22
Custom Soil Resource Report
Landform position (three-dimensional): Side slope
Down -slope shape: Convex
Across -slope shape: Convex
Ecological site: R067BY002CO - Loamy Plains
Hydric soil rating: No
Keith
Percent of map unit: 3 percent
Landform: I me rf l uves
Landform position (two-dimensional): Summit
Landform position (three-dimensional): Interfluve
Down -slope shape: Linear
Across -slope shape: Linear
Ecological site: R067BY002CO - Loamy Plains
Hydric soil rating: No
Baca
Percent of map unit: 2 percent
Landform: ImerfIuves
Landform position (two-dimensional): Summit, shoulder
Landform position (three-dimensional): Interfluve
Down -slope shape: Convex, linear
Across -slope shape: Convex, linear
Ecological site: R067BY002CO - Loamy Plains
Hydric soil rating: No
79 Weld loam, 1 to 3 percent slopes
Map Unit Setting
National map unit symbol: 2x0hw
Elevation: 3,600 to 5,750 feet
Mean annual precipitation: 12 to 17 inches
Mean annual air temperature: 46 to 54 degrees F
Frost -free period: 115 to 155 days
Farmland classification: Prime farmland if irrigated
Map Unit Composition
Weld and similar soils: 80 percent
Minor components: 20 percent
Estimates are based on observations, descriptions, and transects of the mapunit.
Description of Weld
Setting
Landform: ImerfIuves
Landform position (two-dimensional): Summit
Landform position (three-dimensional): Interfluve
Down -slope shape: Linear
Across -slope shape: Linear
Parent material: Calcareous loess
Custom Soil Resource Report
Typical profile
Ap - 0 to 8 inches: loam
Btl - 8 to 12 inches: clay
Bt2 - 12 to 15 inches: clay loam
Btk - 15 to 28 inches: loam
Bk - 28 to 60 inches: silt loam
C - 60 to 80 inches: silt loam
Properties and qualities
Slope: 1 to 3 percent
Depth to restrictive feature: More than 80 inches
Drainage class: Well drained
Runoff class: Medium
Capacity of the most limiting layer to transmit water (Ksat): Moderately low to
moderately high (0.06 to 0.20 in/hr)
Depth to water table: More than 80 inches
Frequency of flooding: None
Frequency of ponding: None
Calcium carbonate, maximum content: 14 percent
Maximum salinity: Nonsaline to very slightly saline (0.1 to 2.0 mmhos/cm)
Sodium adsorption ratio, maximum: 5.0
Available water supply, 0 to 60 inches: High (about 11.3 inches)
Interpretive groups
Land capability classification (irrigated): 2e
Land capability classification (non irrigated): 3c
Hydrologic Soil Group: C
Ecological site: R067BY002CO - Loamy Plains
Hydric soil rating: No
Minor Components
Adena
Percent of map unit: 8 percent
Landform: I me rf l uves
Landform position (two-dimensional): Shoulder
Landform position (three-dimensional): Interfluve
Down -slope shape: Convex
Across -slope shape: Convex
Ecological site: R067BY002CO - Loamy Plains
Hydric soil rating: No
Colby
Percent of map unit: 7 percent
Landform: Hillslopes
Landform position (two-dimensional): Backslope
Landform position (three-dimensional): Side slope
Down -slope shape: Convex
Across -slope shape: Convex
Ecological site: R067BY002CO - Loamy Plains
Hydric soil rating: No
Keith
Percent of map unit: 3 percent
Landform: ImerfIuves
Landform position (two-dimensional): Summit
24
Custom Soil Resource Report
Landform position (three-dimensional): Interfluve
Down -slope shape: Linear
Across -slope shape: Linear
Ecological site: R067BY002CO - Loamy Plains
Hydric soil rating: No
Baca
Percent of map unit: 2 percent
Landform: I me rf l uves
Landform position (two-dimensional): Summit, shoulder
Landform position (three-dimensional): Interfluve
Down -slope shape: Convex, linear
Across -slope shape: Convex, linear
Ecological site: R067BY002CO - Loamy Plains
Hydric soil rating: No
82 Wiley -Colby complex, 1 to 3 percent slopes
Map Unit Setting
National map unit symbol: 3643
Elevation: 4,850 to 5,000 feet
Mean annual precipitation: 12 to 16 inches
Mean annual air temperature: 48 to 54 degrees F
Frost -free period: 135 to 170 days
Farmland classification: Prime farmland if irrigated
Map Unit Composition
Wiley and similar soils: 60 percent
Colby and similar soils: 30 percent
Minor components: 10 percent
Estimates are based on observations, descriptions, and transects of the mapunit.
Description of Wiley
Setting
Landform: Plains
Down -slope shape: Linear
Across -slope shape: Linear
Parent material: Calcareous eolian deposits
Typical profile
H1 - 0 to 11 inches: silt loam
H2 - 11 to 60 inches: silty clay loam
H3 - 60 to 64 inches: silty clay loam
Properties and qualities
Slope: 1 to 3 percent
Depth to restrictive feature: More than 80 inches
Drainage class: Well drained
Runoff class: Low
Custom Soil Resource Report
Capacity of the most limiting layer to transmit water (Ksat): Moderately high to high
(0.60 to 2.00 in/hr)
Depth to water table: More than 80 inches
Frequency of flooding: None
Frequency of ponding: None
Calcium carbonate, maximum content: 15 percent
Maximum salinity: Nonsaline to very slightly saline (0.0 to 2.0 mmhos/cm)
Available water supply, 0 to 60 inches: High (about 11.7 inches)
Interpretive groups
Land capability classification (irrigated): 2e
Land capability classification (nonirrigated): 4e
Hydrologic Soil Group: B
Ecological site: R067BY002CO - Loamy Plains
Hydric soil rating: No
Description of Colby
Setting
Landform: Plains
Down -slope shape: Linear
Across -slope shape: Linear
Parent material: Calcareous eolian deposits
Typical profile
HI - 0 to 7 inches: loam
H2 - 7 to 60 inches: silt loam
Properties and qualities
Slope: 1 to 3 percent
Depth to restrictive feature: More than 80 inches
Drainage class: Well drained
Runoff class: Low
Capacity of the most limiting layer to transmit water (Ksat): Moderately high to high
(0.57 to 2.00 in/hr)
Depth to water table: More than 80 inches
Frequency of flooding: None
Frequency of ponding: None
Calcium carbonate, maximum content: 15 percent
Available water supply, 0 to 60 inches: High (about 10.6 inches)
Interpretive groups
Land capability classification (irrigated): 3e
Land capability classification (non irrigated): 4e
Hydrologic Soil Group: B
Ecological site: R067BY002CO - Loamy Plains
Hydric soil rating: No
Minor Components
Heldt
Percent of map unit: 4 percent
Hydric soil rating: No
Weld
Percent of map unit: 4 percent
Hydric soil rating: No
Custom Soil Resource Report
Keith
Percent of map unit: 2 percent
Hydric soil rating: No
83 Wiley -Colby complex, 3 to 5 percent slopes
Map Unit Setting
National map unit symbol: 3644
Elevation: 4,850 to 5,000 feet
Mean annual precipitation: 12 to 16 inches
Mean annual air temperature: 48 to 54 degrees F
Frost -free period: 135 to 170 days
Farmland classification: Farmland of statewide importance
Map Unit Composition
Wiley and similar soils: 55 percent
Colby and similar soils: 30 percent
Minor components: 15 percent
Estimates are based on observations, descriptions, and transects of the mapunit.
Description of Wiley
Setting
Landform: Plains
Down -slope shape: Linear
Across -slope shape: Linear
Parent material: Calcareous eolian deposits
Typical profile
H1 - 0 to 11 inches: silt loam
H2 - 11 to 60 inches: silty clay loam
H3 - 60 to 64 inches: silty clay loam
Properties and qualities
Slope: 3 to 5 percent
Depth to restrictive feature: More than 80 inches
Drainage class: Well drained
Runoff class: Low
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: None
Frequency of ponding: None
Calcium carbonate, maximum content: 15 percent
Maximum salinity: Nonsaline to very slightly saline (0.0 to 2.0 mmhos/cm)
Available water supply, 0 to 60 inches: High (about 11.7 inches)
Interpretive groups
Land capability classification (irrigated): 3e
Custom Soil Resource Report
Land capability classification (non irrigated): 4e
Hydrologic Soil Group: B
Ecological site: R067BY002CO - Loamy Plains
Hydric soil rating: No
Description of Colby
Setting
Landform: Plains
Down -slope shape: Linear
Across -slope shape: Linear
Parent material: Calcareous eolian deposits
Typical profile
HI - 0 to 7 inches: loam
H2 - 7 to 60 inches: silt loam
Properties and qualities
Slope: 3 to 5 percent
Depth to restrictive feature: More than 80 inches
Drainage class: Well drained
Runoff class: Low
Capacity of the most limiting layer to transmit water (Ksat): Moderately high to high
(0.57 to 2.00 in/hr)
Depth to water table: More than 80 inches
Frequency of flooding: None
Frequency of ponding: None
Calcium carbonate, maximum content: 15 percent
Available water supply, 0 to 60 inches: High (about 10.6 inches)
Interpretive groups
Land capability classification (irrigated): 3e
Land capability classification (non irrigated): 4e
Hydrologic Soil Group: B
Ecological site: R067BY002CO - Loamy Plains
Hydric soil rating: No
Minor Components
Heldt
Percent of map unit: 9 percent
Hydric soil rating: No
Weld
Percent of map unit: 6 percent
Hydric soil rating: No
Soil Information for All Uses
Suitabilities and Limitations for Use
The Suitabilities and Limitations for Use section includes various soil interpretations
displayed as thematic maps with a summary table for the soil map units in the
selected area of interest. A single value or rating for each map unit is generated by
aggregating the interpretive ratings of individual map unit components. This
aggregation process is defined for each interpretation.
Construction Materials
Construction materials interpretations are tools designed to provide guidance to
users in selecting a site for potential source of various materials. Individual soils or
groups of soils may be selected as a potential source because they are close at
hand, are the only source available, or they meets some or all of the physical or
chemical properties required for the intended application. Example interpretations
include roadfill, sand and gravel, topsoil and reclamation material.
Gravel Source (Gravel Rating)
ENG - Engineering
Gravel consists of natural aggregates (2 to 75 millimeters in diameter) suitable for
commercial use with a minimum of processing. It is used in many kinds of
construction. Specifications for each use vary widely. Only the probability of finding
material in suitable quantity is evaluated. The suitability of the material for specific
purposes is not evaluated, nor are factors that affect excavation of the material.
The properties used to evaluate the soil as a source of gravel are gradation of grain
sizes (as indicated by the Unified classification of the soil), the thickness of suitable
material, and the content of rock fragments. If the bottom layer of the soil contains
gravel, the soil is considered a likely source regardless of thickness. The
assumption is that the gravel layer below the depth of observation exceeds the
minimum thickness. The ratings are for the whole soil, from the surface to a depth of
about 6 feet. Coarse fragments of soft bedrock, such as shale and siltstone, are not
considered to be gravel.
29
Custom Soil Resource Report
The soils are rated "good," "fair," or "poor" as potential sources of gravel. A rating of
"good" or "fair" means that the source material is likely to be in or below the soil.
The bottom layer and the thickest layer of the soils are assigned numerical ratings.
These ratings indicate the likelihood that the layer is a source of gravel. The number
0.00 indicates that the layer is a poor source. The number 1.00 indicates that the
layer is a good source. A number between 0.00 and 1.00 indicates the degree to
which the layer is a likely source.
The map unit components listed for each map unit in the accompanying Summary
by Map Unit table in Web Soil Survey or the Aggregation Report in Soil Data Viewer
are determined by the aggregation method chosen. An aggregated rating class is
shown for each map unit. The components listed for each map unit are only those
that have the same rating class as listed for the map unit. The percent composition
of each component in a particular map unit is presented to help the user better
understand the percentage of each map unit that has the rating presented.
Other components with different ratings may be present in each map unit. The
ratings for all components, regardless of the map unit aggregated rating, can be
viewed by generating the equivalent report from the Soil Reports tab in Web Soil
Survey or from the Soil Data Mart site. Onsite investigation may be needed to
validate these interpretations and to confirm the identity of the soil on a given site.
30
40° 1' 27' N
'
4
1
4
i
s
i
39° 59' 53" N
N
lh
0
104° 52'31"W
510700
N
A
Custom Soil Resource Report
Map Gravel Source (Gravel Rating)
511300
511600
Map Scale: 1:14,200 if printed on A portrait (8.5" x 11") sheet.
0
200 400
800
I I
511900
Meters
1200
Feet
0 500 1000 2000 3000
Map projection: Web Mercator Corner coordinates: WGS84 Edge tics: UTM Zone 13N WGS84
512200
104O 50'58"W
512800
I I
512500
512800
104° 50' 58" w'
4
4
s
ci
40°
1' 27' N
39° 59' 53" N
31
Custom Soil Resource Report
MAP LEGEND MAP INFORMATION
Area of Interest (AO!)
Area of Interest (A01)
Soils
Soil Rating Polygons
Poor
Fair
Good
Not rated or not available
Soil Rating Lines
le Poor
Fair
Good
r Not rated or not available
Soil Rating Points
.� Poor
O
O
Fair
Good
Not rated or not available
Water Features
Streams and Canals
Transportation
Rails
Interstate Highways
US Routes
Major Roads
Local Roads
Background The soil surveys that comprise your AOI were mapped at scales
'1§ Aerial Photography
ranging from 1:20,000 to 1:24,000.
Please rely on the bar scale on each map sheet for map
measurements.
Source of Map: Natural Resources Conservation Service
Web Soil Survey URL:
Coordinate System: Web Mercator (EPSG:3857)
Maps from the Web Soil Survey are based on the Web Mercator
projection, which preserves direction and shape but distorts
distance and area. A projection that preserves area, such as the
Albers equal-area conic projection, should be used if more
accurate calculations of distance or area are required.
This product is generated from the USDA-NRCS certified data as
of the version date(s) listed below.
Soil Survey Area: Adams County Area, Parts of Adams and
Denver Counties, Colorado
Survey Area Data: Version 20, Aug 24, 2023
Soil Survey Area: Weld County, Colorado, Southern Part
Survey Area Data: Version 22, Aug 24, 2023
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.
Soil map units are labeled (as space allows) for map scales
1:50,000 or larger.
Date(s) aerial images were photographed: Mar 1, 2023 Sep 1,
2023
The orthophoto or other base map on which the soil lines were
compiled and digitized probably differs from the background
Custom Soil Resource Report
MAP LEGEND MAP INFORMATION
imagery displayed on these maps. As a result, some minor
shifting of map unit boundaries may be evident.
Custom Soil Resource Report
Tables Gravel Source (Gravel Rating)
Map unit
Map
unit name
Rating
Component
Rating reasons
Acres in AOI
Percent of AOI
symbol
name (percent)
(numeric
values)
PIB
Platner loam, 0 to
Poor
Platner (85%)
Bottom layer
0.2
0.0%
3
slopes
percent
(0.00)
Thickest
layer
(0.00)
Ascalon (10%)
Bottom layer
(0.00)
Thickest layer
(0.00)
Rago, rarely
Bottom layer
flooded
(4%)
(0.00)
Thickest
layer
(0.00)
Rago,
ponded
Bottom layer
(1%)
(0.00)
Thickest layer
(0.00)
Subtotals for Soil Survey Area
0.2
0.0%
Totals for Area of Interest
414.8
100.0%
Map unit
symbol
Map
unit name
Rating
Component
name (percent)
Rating reasons
(numeric
values)
Acres in AOI
Percent of AOI
4
Aquolls
Aquepts,
flooded
and
Not rated
Aquolls
(55%)
23.6
5.7%
Aquepts,
(25%)
flooded
Thedalund (10%)
Haverson (10%)
33
Kim
loam, 3
percent slopes
to
5
Poor
Kim (90%)
Bottom layer
(0.00)
5.3
1.3%
Thickest layer
(0.00)
40
Nunn
3
slopes
percent
loam,
1
to
Poor
Nunn (85%)
Bottom layer
(0.00)
200.4
48.3%
Thickest
layer
(0.00)
Wages (8%)
Bottom layer
(0.00)
Thickest layer
(0.00)
Fort Collins (5%)
Bottom layer
(0.00)
Thickest
(0.00)
layer
34
Custom Soil Resource Report
Map unit
symbol
Map unit name
Rating
Component
name (percent)
Rating reasons
(numeric
values)
Acres in AOI
Percent of AOI
Haverson, very
rarely flooded
(2%)
Bottom layer
(0.00)
Thickest layer
(0.00)
78
Weld loam, 0 to 1
percent slopes
Poor
Weld (80%)
Bottom layer
(0.00)
Thickest layer
(0.00)
Colby (8%)
Bottom layer
(0.00)
Thickest layer
(0.00)
Wiley (7%)
Bottom layer
(0.00)
Thickest layer
(0.00)
Keith (3%)
Bottom layer
(0.00)
Thickest layer
(0.00)
Baca (2%)
Bottom layer
(0.00)
Thickest layer
(0.00)
31.0
7.5%
79
Weld loam, 1 to 3
percent slopes
Poor
Weld (80%)
Bottom layer
(0.00)
Thickest layer
(0.00)
Adena (8%)
Bottom layer
(0.00)
Thickest layer
(0.00)
Colby (7%)
Bottom layer
(0.00)
Thickest layer
(0.00)
Keith (3%)
Bottom layer
(0.00)
Thickest layer
(0.00)
Baca (2%)
Bottom layer
(0.00)
Thickest layer
(0.00)
123.3
29.7%
82
Wiley -Colby Poor
complex, 1 to 3
percent slopes
Wiley (60%)
Bottom layer
(0.00)
Thickest layer
(0.00)
20.3
4.9%
35
Custom Soil Resource Report
Map unit
symbol
Map
unit name
Rating
Component
name (percent)
Rating reasons
(numeric
values)
Acres in AOI
Percent of AOI
Colby (30%)
Bottom layer
(0.00)
Thickest layer
(0.00)
83
Wiley
-Colby
complex,
percent
3 to 5
slopes
Poor
Wiley (55%)
Bottom layer
(0.00)
10.8
2.6%
Thickest
layer
(0.00)
Colby (30%)
Bottom layer
(0.00)
Thickest
(0.00)
layer
Subtotals for Soil Survey Area
414.6
100.0%
Totals for Area of Interest
414.8
100.0%
Rating
Acres in AOI
Percent of AOI
Poor
391.2
94.3%
Null or Not Rated
23.6
5.7%
Totals for Area of Interest
414.8
100.0%
Rating Options Gravel Source (Gravel Rating)
Aggregation Method: Dominant Condition
Component Percent Cutof• None Specified
Tie -break Rule: Higher
Sand Source (Sand Source)
ENG - Engineering
Sand is a natural aggregate (0.05 millimeter to 2 millimeters in diameter) suitable for
commercial use with a minimum of processing. It is used in many kinds of
construction. Specifications for each use vary widely. Only the probability of finding
material in suitable quantity is evaluated. The suitability of the material for specific
purposes is not evaluated, nor are factors that affect excavation of the material.
The properties used to evaluate the soil as a source of sand are gradation of grain
sizes (as indicated by the Unified classification of the soil), the thickness of suitable
material, and the content of rock fragments. If the bottom layer of the soil contains
sand, the soil is considered a likely source regardless of thickness. The assumption
is that the sand layer below the depth of observation exceeds the minimum
36
Custom Soil Resource Report
thickness. The ratings are for the whole soil, from the surface to a depth of about 6
feet.
The soils are rated "good," "fair," or "poor" as potential sources of sand. A rating of
"good" or "fair" means that sand is likely to be in or below the soil. The bottom layer
and the thickest layer of the soil are assigned numerical ratings. These ratings
indicate the likelihood that the layer is a source of sand. The number 0.00 indicates
that the layer is a "poor source." The number 1.00 indicates that the layer is a "good
source." A number between 0.00 and 1.00 indicates the degree to which the layer is
a likely source.
The map unit components listed for each map unit in the accompanying Summary
by Map Unit table in Web Soil Survey or the Aggregation Report in Soil Data Viewer
are determined by the aggregation method chosen. An aggregated rating class is
shown for each map unit. The components listed for each map unit are only those
that have the same rating class as listed for the map unit. The percent composition
of each component in a particular map unit is presented to help the user better
understand the percentage of each map unit that has the rating presented.
Other components with different ratings may be present in each map unit. The
ratings for all components, regardless of the map unit aggregated rating, can be
viewed by generating the equivalent report from the Soil Reports tab in Web Soil
Survey or from the Soil Data Mart site. Onsite investigation may be needed to
validate these interpretations and to confirm the identity of the soil on a given site.
37
40° 1' 27' N
'
4
1
4
i
s
i
39° 59' 53" N
N
lh
0
104° 52'31"W
N
A
Custom Soil Resource Report
Map Sand Source (Sand Source)
511600
Map Scale: 1:14,200 if printed on A portrait (8.5" x 11") sheet.
0
200 400
800
Meters
1200
Feet
0 500 1000 2000 3000
Map projection: Web Mercator Corner coordinates: WGS84 Edge tics: UTM Zone 13N WGS84
512200
512500
104O 50'58"W
104° 50' 58" w'
4
4
s
ci
40°
1' 27' N
39° 59' 53" N
38
Custom Soil Resource Report
MAP LEGEND MAP INFORMATION
Area of Interest (AO!)
Area of Interest (A01)
Soils
Soil Rating Polygons
Poor
Fair
Good
Not rated or not available
Soil Rating Lines
le Poor
Fair
Good
r Not rated or not available
Soil Rating Points
.� Poor
O
O
Fair
Good
Not rated or not available
Water Features
Streams and Canals
Transportation
Rails
Interstate Highways
US Routes
Major Roads
Local Roads
Background The soil surveys that comprise your AOI were mapped at scales
'1§ Aerial Photography
ranging from 1:20,000 to 1:24,000.
Please rely on the bar scale on each map sheet for map
measurements.
Source of Map: Natural Resources Conservation Service
Web Soil Survey URL:
Coordinate System: Web Mercator (EPSG:3857)
Maps from the Web Soil Survey are based on the Web Mercator
projection, which preserves direction and shape but distorts
distance and area. A projection that preserves area, such as the
Albers equal-area conic projection, should be used if more
accurate calculations of distance or area are required.
This product is generated from the USDA-NRCS certified data as
of the version date(s) listed below.
Soil Survey Area: Adams County Area, Parts of Adams and
Denver Counties, Colorado
Survey Area Data: Version 20, Aug 24, 2023
Soil Survey Area: Weld County, Colorado, Southern Part
Survey Area Data: Version 22, Aug 24, 2023
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.
Soil map units are labeled (as space allows) for map scales
1:50,000 or larger.
Date(s) aerial images were photographed: Mar 1, 2023 Sep 1,
2023
The orthophoto or other base map on which the soil lines were
compiled and digitized probably differs from the background
Custom Soil Resource Report
MAP LEGEND MAP INFORMATION
imagery displayed on these maps. As a result, some minor
shifting of map unit boundaries may be evident.
Custom Soil Resource Report
Tables Sand Source (Sand Source)
Map unit
Map
unit name
Rating
Component
Rating reasons
Acres in AOI
Percent of AOI
symbol
name (percent)
(numeric
values)
PIB
Platner loam, 0 to
Fair
Platner (85%)
Bottom layer
0.2
0.0%
3
slopes
percent
(0.00)
Thickest
layer
(0.01)
Ascalon (10%)
Thickest layer
(0.09)
Bottom layer
(0.10)
Subtotals for Soil Survey Area
0.2
0.0%
Totals for Area of Interest
414.8
100.0%
Map
unit
Map
unit name
Rating
Component
Rating reasons
Acres in AOI
Percent of AOI
symbol
name (percent)
(numeric
values)
4
Aquolls
and
Fair
Aquolls
(55%)
Bottom layer
23.6
5.7%
Aquepts,
flooded
(0.01)
Thickest layer
(0.06)
Aquepts,
flooded
Bottom layer
(25%)
(0.01)
Thickest layer
(0.06)
33
Kim loam, 3 to 5
Poor
Kim (90%)
Bottom layer
5.3
1.3%
percent slopes
(0.00)
Thickest
layer
(0.00)
40
Nunn loam,
1 to
Poor
Nunn
(85%)
Bottom layer
200.4
48.3%
3
slopes
percent
(0.00)
Thickest layer
(0.00)
Fort Collins (5%)
Bottom layer
(0.00)
Thickest layer
(0.00)
Haverson,
very
Bottom layer
rarely
flooded
(0.00)
(2%)
Thickest
layer
(0.00)
78
Weld
loam, 0 to 1
Poor
Weld (80%)
Bottom layer
31.0
7.5%
percent slopes
(0.00)
Thickest layer
(0.00)
41
Custom Soil Resource Report
Map unit
symbol
Map unit name
Rating
Component
name (percent)
Rating reasons
(numeric
values)
Acres in AOI
Percent of AOI
Colby (8%)
Bottom layer
(0.00)
Thickest layer
(0.00)
Wiley (7%)
Bottom layer
(0.00)
Thickest layer
(0.00)
Keith (3%)
Bottom layer
(0.00)
Thickest layer
(0.00)
Baca (2%)
Bottom layer
(0.00)
Thickest layer
(0.00)
79
Weld loam, 1 to 3 Poor
percent slopes
Weld (80%)
Bottom layer
(0.00)
Thickest layer
(0.00)
Colby (7%)
Bottom layer
(0.00)
Thickest layer
(0.00)
Keith (3%)
Bottom layer
(0.00)
Thickest layer
(0.00)
Baca (2%)
Bottom layer
(0.00)
Thickest layer
(0.00)
123.3
29.7%
82
Wiley -Colby Poor
complex, 1 to 3
percent slopes
Wiley (60%)
Bottom layer
(0.00)
Thickest layer
(0.00)
Colby (30%)
Bottom layer
(0.00)
Thickest layer
(0.00)
20.3
4.9%
83
Wiley -Colby Poor
complex, 3 to 5
percent slopes
Wiley (55%)
Bottom layer
(0.00)
Thickest layer
(0.00)
Colby (30%)
Bottom layer
(0.00)
Thickest layer
(0.00)
10.8
2.6%
42
Custom Soil Resource Report
Map unit
symbol
Map
unit name
Rating
Component
name (percent)
Rating reasons
(numeric
values)
Acres in AOI
Percent of AOI
Subtotals for Soil Survey Area
414.6
100.0%
Totals for Area of Interest
414.8
100.0%
Rating
Acres in AOI
Percent of AOI
Poor
391.1
94.3%
Fair
23.7
5.7%
Totals for Area of Interest
414.8
100.0%
Rating Options Sand Source (Sand Source)
Aggregation Method: Dominant Condition
Component Percent Cutof• None Specified
Tie -break Rule: Higher
Land Classifications
Land Classifications are specified land use and management groupings that are
assigned to soil areas because combinations of soil have similar behavior for
specified practices. Most are based on soil properties and other factors that directly
influence the specific use of the soil. Example classifications include ecological site
classification, farmland classification, irrigated and nonirrigated land capability
classification, and hydric rating.
Farmland Classification (Farmland Classification)
Farmland classification identifies map units as prime farmland, farmland of
statewide importance, farmland of local importance, or unique farmland. It identifies
the location and extent of the soils that are best suited to food, feed, fiber, forage,
and oilseed crops. NRCS policy and procedures on prime and unique farmlands are
published in the "Federal Register," Vol. 43, No. 21, January 31, 1978.
43
40° 1' 27' N
'
4
1
4
i
s
i
39° 59' 53" N
N
lh
0
104° 52'31"W
N
A
Custom Soil Resource Report
Map Farmland Classification (Farmland Classification)
511600
Map Scale: 1:14,200 if printed on A portrait (8.5" x 11") sheet.
0
200 400
800
Meters
1200
Feet
0 500 1000 2000 3000
Map projection: Web Mercator Corner coordinates: WGS84 Edge tics: UTM Zone 13N WGS84
512500
104O 50'58"W
104° 50' 58" w'
4
4
s
ti
40°
1' 27' N
39° 59' 53" N
44
Custom Soil Resource Report
MAP LEGEND
Area of Interest (AO!)
Area of Interest (AO1)
Soils
Soil Rating Polygons
Not prime farmland
All areas are prime
farmland
Prime farmland if drained
Prime farmland if
protected from flooding or
not frequently flooded
during the growing
season
Prime farmland if irrigated
Prime farmland if drained
and either protected from
flooding or not frequently
flooded during the
growing season
Prime farmland if irrigated
and drained
Prime farmland if irrigated
and either protected from
flooding or not frequently
flooded during the
growing season
Prime farmland if
subsoiled, completely
removing the root
inhibiting soil layer
Prime farmland if irrigated
and the product of I (soil
erodibility) x C (climate
factor) does not exceed
60
Prime farmland if irrigated
and reclaimed of excess
salts and sodium
Farmland of statewide
importance
Farmland of statewide
importance, if drained
Farmland of statewide
importance, if protected
from flooding or not
frequently flooded during
the growing season
Farmland of statewide
importance, if irrigated
Farmland of statewide
importance, if drained and
either protected from
flooding or not frequently
flooded during the
growing season
Farmland of statewide
importance, if irrigated
and drained
Farmland of statewide
importance, if irrigated
and either protected from
flooding or not frequently
flooded during the
growing season
Farmland of statewide
importance, if subsoiled,
completely removing the
root inhibiting soil layer
Farmland of statewide
importance, if irrigated
and the product of I (soil
erodibility) x C (climate
factor) does not exceed
60
Farmland of statewide
importance, if irrigated
and reclaimed of excess
salts and sodium
Farmland of statewide
importance, if drained or
either protected from
flooding or not frequently
flooded during the
growing season
Farmland of statewide
importance, if warm
enough, and either
drained or either
protected from flooding or
not frequently flooded
during the growing
season
Farmland of statewide
importance, if warm
enough
Farmland of statewide
importance, if thawed
Farmland of local
importance
Farmland of local
importance, if irrigated
Farmland of unique
importance
Not rated or not
available
Soil Rating Lines
Not prime farmland
All areas are prime
farmland
Prime farmland if
drained
Prime farmland if
protected from flooding
or not frequently flooded
during the growing
season
Prime farmland if
irrigated
4 Prime farmland if
drained and either
protected from flooding
or not frequently flooded
during the growing
season
Prime farmland if
irrigated and drained
{ Prime farmland if
irrigated and either
protected from flooding
or not frequently flooded
during the growing
season
45
Custom Soil Resource Report
Prime farmland if
subsoiled, completely
removing the root
inhibiting soil layer
se 0 Prime farmland if irrigated
and the product of I (soil
erodibility) x C (climate
factor) does not exceed
60
Prime farmland if irrigated
and reclaimed of excess
salts and sodium
Farmland of statewide
importance
or _se Farmland of statewide
importance, if drained
Farmland of statewide
importance, if protected
from flooding or not
frequently flooded during
the growing season
LIE Farmland of statewide
importance, if irrigated
Farmland of statewide
importance, if drained and
either protected from
flooding or not frequently
flooded during the
growing season
Farmland of statewide
importance, if irrigated
and drained
Farmland of statewide
importance, if irrigated
and either protected from
flooding or not frequently
flooded during the
growing season
Farmland of statewide
importance, if subsoiled,
completely removing the
root inhibiting soil layer
Farmland of statewide
importance, if irrigated
and the product of I (soil
erodibility) x C (climate
factor) does not exceed
60
„p*
Farmland of statewide
importance, if irrigated
and reclaimed of excess
salts and sodium
Farmland of statewide
importance, if drained or
either protected from
flooding or not frequently
flooded during the
growing season
Farmland of statewide
importance, if warm
enough, and either
drained or either
protected from flooding or
not frequently flooded
during the growing
season
Farmland of statewide
importance, if warm
enough
i Farmland of statewide
importance, if thawed
Farmland of local
importance
Farmland of local
importance, if irrigated
i g Farmland of unique
importance
Not rated or not available
Soil Rating Points
a
0
X
C
Not prime farmland
All areas are prime
farmland
Prime farmland if drained
Prime farmland if
protected from flooding or
not frequently flooded
during the growing
season
Prime farmland if irrigated
Prime farmland if drained
and either protected from
flooding or not frequently
flooded during the
growing season
Prime farmland if irrigated
and drained
Prime farmland if irrigated
and either protected from
flooding or not frequently
flooded during the
growing season
0
0
0
0
0
a
Prime farmland if
subsoiled, completely
removing the root
inhibiting soil layer
Prime farmland if
irrigated and the product
of I (soil erodibility) x C
(climate factor) does not
exceed 60
Prime farmland if
irrigated and reclaimed
of excess salts and
sodium
Farmland of statewide
importance
Farmland of statewide
importance, if drained
Farmland of statewide
importance, if protected
from flooding or not
frequently flooded during
the growing season
Farmland of statewide
importance, if irrigated
46
Custom Soil Resource Report
0
•
0
0
Farmland of statewide
importance, if drained and
either protected from
flooding or not frequently
flooded during the
growing season
Farmland of statewide
importance, if irrigated
and drained
Farmland of statewide
importance, if irrigated
and either protected from
flooding or not frequently
flooded during the
growing season
Farmland of statewide
importance, if subsoiled,
completely removing the
root inhibiting soil layer
Farmland of statewide
importance, if irrigated
and the product of I (soil
erodibility) x C (climate
factor) does not exceed
60
a
0
a
0
n
Farmland of statewide
importance, if irrigated
and reclaimed of excess
salts and sodium
Farmland of statewide
importance, if drained or
either protected from
flooding or not frequently
flooded during the
growing season
Farmland of statewide
importance, if warm
enough, and either
drained or either
protected from flooding or
not frequently flooded
during the growing
season
Farmland of statewide
importance, if warm
enough
Farmland of statewide
importance, if thawed
Farmland of local
importance
Farmland of local
importance, if irrigated
0 Farmland of unique
importance
Not rated or not available
a
Water Features
Streams and Canals
Transportation
Rails
Interstate Highways
US Routes
Major Roads
Local Roads
Background
Aerial Photography
The soil surveys that comprise your AOI were mapped at scales
ranging from 1:20,000 to 1:24,000.
Please rely on the bar scale on each map sheet for map
measurements.
Source of Map: Natural Resources Conservation Service
Web Soil Survey URL:
Coordinate System: Web Mercator (EPSG:3857)
Maps from the Web Soil Survey are based on the Web Mercator
projection, which preserves direction and shape but distorts
distance and area. A projection that preserves area, such as the
Albers equal-area conic projection, should be used if more
accurate calculations of distance or area are required.
This product is generated from the USDA-NRCS certified data
as of the version date(s) listed below.
Soil Survey Area: Adams County Area, Parts of Adams and
Denver Counties, Colorado
Survey Area Data: Version 20, Aug 24, 2023
Soil Survey Area: Weld County, Colorado, Southern Part
Survey Area Data: Version 22, Aug 24, 2023
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.
Soil map units are labeled (as space allows) for map scales
1:50,000 or larger.
Date(s) aerial images were photographed: Mar 1, 2023 Sep
1, 2023
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.
47
Custom Soil Resource Report
Table Farmland Classification (Farmland Classification)
Map
unit symbol
Map unit name
Rating
Acres in AOI
Percent of AOI
PIB
Platner loam,
percent
slopes
0 to 3
Prime farmland if
irrigated
0.2
0.0%
Subtotals for Soil Survey Area
0.2
0.0%
Totals for Area of Interest
414.8
100.0%
Map
unit symbol
Map
unit name
Rating
Acres in AOI
Percent of AOI
4
Aquolls
flooded
and Aquepts,
Prime
and
from
frequently
during
season
farmland
either
flooding
the
flooded
if drained
protected
or not
growing
23.6
5.7%
33
Kim loam,
slopes
3 to 5
percent
Farmland
importance
of statewide
5.3
1.3%
40
Nunn
loam,
percent
1
slopes
to 3
Prime farmland if
irrigated
200.4
48.3%
78
Weld
percent
loam,
0
slopes
to 1
Prime farmland
irrigated
if
31.0
7.5%
79
Weld
loam,
percent slopes
1 to 3
Prime farmland if
irrigated
123.3
29.7%
82
Wiley -Colby
to 3
complex,
percent slopes
1
Prime farmland if
irrigated
20.3
4.9%
83
Wiley
-Colby
to 5
percent
complex,
slopes
3
Farmland
importance
of statewide
10.8
2.6%
Subtotals for Soil Survey Area
414.6
100.0%
Totals for Area of Interest
414.8
100.0%
Rating Options —Farmland Classification (Farmland
Classification)
Aggregation Method: No Aggregation Necessary
Tie -break Rule: Lower
48
Custom Soil Resource Report
Soil Properties and Qualities
The Soil Properties and Qualities section includes various soil properties and
qualities displayed as thematic maps with a summary table for the soil map units in
the selected area of interest. A single value or rating for each map unit is generated
by aggregating the interpretive ratings of individual map unit components. This
aggregation process is defined for each property or quality.
Soil Qualities and Features
Soil qualities are behavior and performance attributes that are not directly
measured, but are inferred from observations of dynamic conditions and from soil
properties. Example soil qualities include natural drainage, and frost action. Soil
features are attributes that are not directly part of the soil. Example soil features
include slope and depth to restrictive layer. These features can greatly impact the
use and management of the soil.
Hydrologic Soil Group (Hydrologic Soil Group)
Hydrologic soil groups are based on estimates of runoff potential. Soils are
assigned to one of four groups according to the rate of water infiltration when the
soils are not protected by vegetation, are thoroughly wet, and receive precipitation
from long -duration storms.
The soils in the United States are assigned to four groups (A, B, C, and D) and
three dual classes (A/D, B/D, and C/D). The groups are defined as follows:
Group A. Soils having a high infiltration rate (low runoff potential) when thoroughly
wet. These consist mainly of deep, well drained to excessively drained sands or
gravelly sands. These soils have a high rate of water transmission.
Group B. Soils having a moderate infiltration rate when thoroughly wet. These
consist chiefly of moderately deep or deep, moderately well drained or well drained
soils that have moderately fine texture to moderately coarse texture. These soils
have a moderate rate of water transmission.
Group C. Soils having a slow infiltration rate when thoroughly wet. These consist
chiefly of soils having a layer that impedes the downward movement of water or
soils of moderately fine texture or fine texture. These soils have a slow rate of water
transmission.
Group D. Soils having a very slow infiltration rate (high runoff potential) when
thoroughly wet. These consist chiefly of clays that have a high shrink -swell
potential, soils that have a high water table, soils that have a claypan or clay layer at
49
Custom Soil Resource Report
or near the surface, and soils that are shallow over nearly impervious material.
These soils have a very slow rate of water transmission.
If a soil is assigned to a dual hydrologic group (A/D, BID, or C/D), the first letter is
for drained areas and the second is for undrained areas. Only the soils that in their
natural condition are in group D are assigned to dual classes.
50
40° 1' 27' N
'
4
1
4
i
s
i
39° 59' 53" N
N
lh
0
104° 52'31"W
N
A
Custom Soil Resource Report
Map Hydrologic Soil Group (Hydrologic Soil Group)
511600
Map Scale: 1:14,200 if printed on A portrait (8.5" x 11") sheet.
0
200 400
800
Meters
1200
Feet
0 500 1000 2000 3000
Map projection: Web Mercator Corner coordinates: WGS84 Edge tics: UTM Zone 13N WGS84
512200
512500
104O 50'58"W
104° 50' 58" w'
8
4
4
4
s
ti
40°
1' 27' N
39° 59' 53" N
51
Custom Soil Resource Report
MAP LEGEND
Area of Interest (AO!)
Area of Interest (A01)
Soils
Soil Rating Polygons
A
A/D
B
B/D
C
C/D
D
Not rated or not available
Soil Rating Lines
A
A/D
B
B/D
fl
D
MAP INFORMATION
C The soil surveys that comprise your AOI were mapped at scales
ranging from 1:20,000 to 1:24,000.
C/D
D Please rely on the bar scale on each map sheet for map
measurements.
Not rated or not available
Water Features
Streams and Canals
Transportation
Rails
Interstate Highways
US Routes
Major Roads
Local Roads
Background
,° Aerial Photography
Source of Map: Natural Resources Conservation Service
Web Soil Survey URL:
Coordinate System: Web Mercator (EPSG:3857)
Maps from the Web Soil Survey are based on the Web Mercator
projection, which preserves direction and shape but distorts
distance and area. A projection that preserves area, such as the
Albers equal-area conic projection, should be used if more
accurate calculations of distance or area are required.
This product is generated from the USDA-NRCS certified data as
of the version date(s) listed below.
Soil Survey Area: Adams County Area, Parts of Adams and
Denver Counties, Colorado
Survey Area Data: Version 20, Aug 24, 2023
Soil Survey Area: Weld County, Colorado, Southern Part
,o.. 0 C Survey Area Data: Version 22, Aug 24, 2023
knis
kator
C/D
D
Not rated or not available
Soil Rating Points
D
D
A
A/D
B
B/D
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.
Soil map units are labeled (as space allows) for map scales
1:50,000 or larger.
Date(s) aerial images were photographed: Mar 1, 2023 Sep 1,
2023
The orthophoto or other base map on which the soil lines were
compiled and digitized probably differs from the background
Custom Soil Resource Report
MAP LEGEND MAP INFORMATION
imagery displayed on these maps. As a result, some minor
shifting of map unit boundaries may be evident.
Custom Soil Resource Report
Table Hydrologic Soil Group (Hydrologic Soil Group)
Map
unit symbol
Map unit name
Rating
Acres in AOI
Percent of AOI
PIB
Platner loam,
percent
slopes
0 to 3
C
0.2
0.0%
Subtotals for Soil Survey Area
0.2
0.0%
Totals for Area of Interest
414.8
100.0%
Map
unit symbol
Map
unit name
Rating
Acres in AOI
Percent of AOI
4
Aquolls
flooded
and Aquepts,
D
23.6
5.7%
33
Kim loam,
slopes
3 to 5
percent
A
5.3
1.3%
40
Nunn
loam,
percent
1
slopes
to 3
C
200.4
48.3%
78
Weld
percent
loam,
0
slopes
to 1
C
31.0
7.5%
79
Weld
loam,
percent slopes
1 to 3
C
123.3
29.7%
82
Wiley -Colby
to 3
complex,
percent slopes
1
B
20.3
4.9%
83
Wiley
-Colby
to 5
percent
complex,
slopes
3
B
10.8
2.6%
Subtotals for Soil Survey Area
414.6
100.0%
Totals for Area of Interest
414.8
100.0%
Rating Options —Hydrologic Soil Group (Hydrologic Soil Group)
Aggregation Method: Dominant Condition
Component Percent Cutoff: None Specified
Tie -break Rule: Higher
54
References
American Association of State Highway and Transportation Officials (AASHTO).
2004. Standard specifications for transportation materials and methods of sampling
and testing. 24th edition.
American Society for Testing and Materials (ASTM). 2005. Standard classification of
soils for engineering purposes. ASTM Standard D2487-00.
Cowardin, L.M., V. Carter, F.C. Golet, and E.T. LaRoe. 1979. Classification of
wetlands and deep -water habitats of the United States. U.S. Fish and Wildlife
Service FWS/OBS-79/31.
Federal Register. July 13, 1994. Changes in hydric soils of the United States.
Federal Register. September 18, 2002. Hydric soils of the United States.
Hurt, G.W., and L.M. Vasilas, editors. Version 6.0, 2006. Field indicators of hydric
soils in the United States.
N ational Research Council. 1995. Wetlands: Characteristics and boundaries.
Soil Survey Division Staff. 1993. Soil survey manual. Soil Conservation Service.
U .S. Department of Agriculture Handbook 18. http://www.nrcs.usda.gov/wps/portal/
nres/detai I/national/soils/?cid=nres 142p2_054262
Soil Survey Staff. 1999. Soil taxonomy: A basic system of soil classification for
making and interpreting soil surveys. 2nd edition. Natural Resources Conservation
Service, U.S. Department of Agriculture Handbook 436. http://
www.nres. usda.gov/wps/portal/nres/detail/national/soils/?cid=n res142p2_053577
Soil Survey Staff. 2010. Keys to soil taxonomy. 11th edition. U.S. Department of
Agriculture, Natural Resources Conservation Service. http://
www.nres.usda.gov/wps/portal/nres/detail/national/soils/?cid=n res142p2_053580
Tiner, R.W., Jr. 1985. Wetlands of Delaware. U.S. Fish and Wildlife Service and
Delaware Department of Natural Resources and Environmental Control, Wetlands
Section.
U nited States Army Corps of Engineers, Environmental Laboratory. 1987. Corps of
Engineers wetlands delineation manual. Waterways Experiment Station Technical
Report Y-87-1.
U nited States Department of Agriculture, Natural Resources Conservation Service.
N ational forestry manual. http://www.nres.usda.gov/wps/portal/nres/detail/soils/
home/?cid=nrcs142p2_053374
p2_053374
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