HomeMy WebLinkAbout20100149.tiff _USDA United States A product of the National Custom Soil Resource
a Department of Cooperative Soil Survey,
Agriculture a joint effort of the United Report for
• States Department of
4 Agriculture and other Weld County ,Federal agencies, State
Natural agencies including the C o l o ra d o
Resources Agricultural Experiment '
Conservation Stations, and local
Service participants Southern Part
Kersey Compressor Station
1411
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Co
Weld
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July 8, 2009
2010-0149
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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 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://soils.usda.gov/sqi/) and certain
conservation and engineering applications. For more detailed information, contact
your local USDA Service Center(http://offces.sc.egov.usda.gov/locator/app?
agency=nres) or your NRCS State Soil Scientist(http://soils.usda.gov/contact/
state_offces/).
Great differences in soil properties can occur within short distances. Some soils are
seasonally wet or subject to flooding. Some are too unstable to be used as a
foundation for buildings or roads.Clayey or wet soils are poorly suited to use as septic
tank absorption fields.A high water table makes a soil poorly suited to basements or
underground installations.
The National Cooperative Soil Survey is a joint effort of the United States Department
of Agriculture and other Federal agencies, State agencies including the Agricultural
Experiment Stations, and local agencies. The Natural Resources Conservation
Service (NRCS) has leadership for the Federal part of the National Cooperative Soil
Survey.
Information about soils is updated periodically. Updated information is available
through the NRCS Soil Data Mart Web site or the NRCS Web Soil Survey. The Soil
Data Mart is the data storage site for the official soil survey information.
The U.S. Department of Agriculture(USDA)prohibits discrimination in all its programs
and activities on the basis of race, color, national origin, age, disability, and where
applicable, sex, marital status, familial status, parental status, religion, sexual
orientation,genetic information, political beliefs, reprisal, or because all or a part of an
individual's income is derived from any public assistance program. (Not all prohibited
bases apply to all programs.) Persons with disabilities who require alternative means
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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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411
Contents
Preface 2
Soil Map 5
Soil Map(Kersey Compressor Station) 6
Legend 7
Map Unit Legend (Kersey Compressor Station) 8
Map Unit Descriptions (Kersey Compressor Station) 8
Weld County, Colorado, Southern Part 10
69—Valent sand, 0 to 3 percent slopes 10
References 11
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Soil Map
The soil map section includes the soil map for the defined area of interest,a list of soil
map units on the map and extent of each map unit, and cartographic symbols
displayed on the map.Also presented are various metadata about data used to
produce the map, and a description of each soil map unit.
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Custom Soil Resource Report
MAP LEGEND MAP INFORMATION
Area of Interest(AOl) CO Very Stony Spot Map Scale: 1:791 if printed on A size (8.5" x 11") sheet.
Area of Interest(AOl) * Wet Spot
Soils The soil surveys that comprise your AOI were mapped at 1:24,000.
Other
Soil Map Units Please rely on the bar scale on each map sheet for accurate map
Line Features
Special Point Features - Gully measurements.
�•; Blowout
. Short Steep Slope Source of Map: Natural Resources Conservation Service
Borrow Pit Web Soil Survey URL: http://websoilsurvey.nrcs.usda.gov
nres.usda. ov
. Other p y• g
X Clay Spot Coordinate System: UTM Zone 13N NAD83
Political Features
• Closed Depression Cities This product is generated from the USDA-NRCS certified data as of
x Gravel Pit a PLSS Township and the version date(s) listed below.
Gravelly Spot Range
PLSS Section Soil Survey Area: Weld County, Colorado. Southern Part
Landfill Survey Area Data: Version 10, Apr 17, 2009
Water Features
A Lava Flow
Oceans Date(s) aerial images were photographed: 6/22/2005
Marsh or swamp
Streams and Canals
• Mine or Quarry The orthophoto or other base map on which the soil lines were
Transportation compiled and digitized probably differs from the background
p Miscellaneous Water +-1-+- Rails imagery displayed on these maps. As a result, some minor shifting
• Perennial Water Interstate Highways of map unit boundaries may be evident.
Rock Outcrop US Routes
+ Saline Spot Major Roads
Sandy Spot - ,. Local Roads
Severely Eroded Spot
p Sinkhole
)' Slide or Slip
O Sodic Spot
Spoil Area
6 Stony Spot
Custom Soil Resource Report
• Map Unit Legend (Kersey Compressor
Station)
Weld County,Colorado,Southern Part(CO618)
Map Unit Symbol Map Unit Name Acres in AOI Percent of AOI
69 Valent sand,0 to 3 percent slopes 2.8 100.0%'.
Totals for Area of Interest 100.0%
Map Unit Descriptions (Kersey Compressor
Station)
The map units delineated on the detailed soil maps in a soil survey represent the soils
or miscellaneous areas in the survey area.The map unit descriptions, along with the
maps, can be used to determine the composition and properties of a unit.
A map unit delineation on a soil map represents an area dominated by one or more
major kinds of soil or miscellaneous areas. A map unit is identified and named
according to the taxonomic classification of the dominant soils. Within a taxonomic
class there are precisely defined limits for the properties of the soils.On the landscape,
• however,the soils are natural phenomena,and they have the characteristic variability
of all natural phenomena.Thus, the range of some observed properties may extend
beyond the limits defined for a taxonomic class.Areas of soils of a single taxonomic
class rarely, if ever, can be mapped without including areas of other taxonomic
classes. Consequently, every map unit is made up of the soils or miscellaneous areas
for which it is named and some minor components that belong to taxonomic classes
other than those of the major soils.
Most minor soils have properties similar to those of the dominant soil or soils in the
map unit, and thus they do not affect use and management. These are called
noncontrasting, or similar, components. They may or may not be mentioned in a
particular map unit description. Other minor components, however, have properties
and behavioral characteristics divergent enough to affect use or to require different
management.These are called contrasting,or dissimilar,components.They generally
are in small areas and could not be mapped separately because of the scale used.
Some small areas of strongly contrasting soils or miscellaneous areas are identified
by a special symbol on the maps. If included in the database for a given area, the
contrasting minor components are identified in the map unit descriptions along with
some characteristics of each.A few areas of minor components may not have been
observed, and consequently they are not mentioned in the descriptions, especially
where the pattern was so complex that it was impractical to make enough observations
to identify all the soils and miscellaneous areas on the landscape.
The presence of minor components in a map unit in no way diminishes the usefulness
or accuracy of the data. The objective of mapping is not to delineate pure taxonomic
classes but rather to separate the landscape into landforms or landform segments that
have similar use and management requirements. The delineation of such segments
on the map provides sufficient information for the development of resource plans. If
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Custom Soil Resource Report
• 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.
Some surveys include miscellaneous areas. Such areas have little or no soil material
and support little or no vegetation. Rock outcrop is an example.
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Custom Soil Resource Report
• Weld County, Colorado, Southern Part
69—Valent sand, 0 to 3 percent slopes
Map Unit Setting
Elevation:4,650 to 5,100 feet
Mean annual precipitation: 13 to 19 inches
Mean annual air temperature:48 to 52 degrees F
Frost-free period: 130 to 180 days
Map Unit Composition
Valent and similar soils: 90 percent
Minor components: 10 percent
Description of Valent
Setting
Landform: Plains
Down-slope shape: Linear
Across-slope shape: Linear
Parent material: Eolian deposits
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: None
Frequency of ponding: None
Available water capacity:Very low(about 2.6 inches)
Interpretive groups
Land capability classification (irrigated):4e
Land capability(nonirrigated):6e
Ecological site: Deep Sand (R067BY015CO)
Typical profile
0 to 8 inches: Fine sand
8 to 60 inches:Sand
Minor Components
Osgood
Percent of map unit 10 percent
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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.
National Research Council. 1995. Wetlands: Characteristics and boundaries.
Soil Survey Division Staff. 1993. Soil survey manual. Soil Conservation Service. U.S.
Department of Agriculture Handbook 18. http://soils.usda.gov/
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://soils.usda.gov/
Soil Survey Staff. 2006. Keys to soil taxonomy. 10th edition. U.S. Department of
Agriculture, Natural Resources Conservation Service. http://soils.usda.gov/
Tiner, R.W., Jr. 1985. Wetlands of Delaware. U.S. Fish and Wildlife Service and
Delaware Department of Natural Resources and Environmental Control, Wetlands
Section.
United States Army Corps of Engineers, Environmental Laboratory. 1987. Corps of
Engineers wetlands delineation manual.Waterways Experiment Station Technical
Report Y-87-1.
United States Department of Agriculture, Natural Resources Conservation Service.
National forestry manual. http://soils.usda.gov/
United States Department of Agriculture, Natural Resources Conservation Service.
National range and pasture handbook. http://www.glti.nres.usda.gov/
United States Department of Agriculture, Natural Resources Conservation Service.
National soil survey handbook, title 430-VI. http://soils.usda.gov/
United States Department of Agriculture, Natural Resources Conservation Service.
2006. Land resource regions and major land resource areas of the United States,the
Caribbean, and the Pacific Basin. U.S. Department of Agriculture Handbook 296.
http://soils.usda.gov/
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Custom Soil Resource Report
United States Department of Agriculture, Soil Conservation Service. 1961. Land
capability classification. U.S. Department of Agriculture Handbook 210.
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