Metadata (STATSGO)

The STATSGO database is a digital general soil association map developed by the National Cooperative Soil Survey. It consists of a broad based inventory of soils and nonsoil areas that occur in a repeatable pattern on the landscape and that can be cartographically shown at the scale mapped. The soil maps for STATSGO are compiled by generalizing more detailed soil survey maps. Where more detailed soil survey maps are not available, data on geology, topography, vegetation, and climate are assembled, together with Land Remote Sensing Satellite (LANDSAT) images. Soils of like areas are studied, and the probable classification and extent of the soils are determined. Map unit composition for a STATSGO map is determined by transecting or sampling areas on the more detailed maps and expanding the data statistically to characterize the whole map unit. The original data set consists of georeferenced digital map data and computerized attribute data. The map data are collected in 1- by 2-degree topographic quadrangle units and merged and distributed as statewide coverages. The soil map units are linked to attributes in the Map Unit Interpretations Record relational data base which gives the proportionate extent of the component soils and their properties.

This data set provides a soil association map in ARCVIEW Shapefile Format for the Conterminous United States. The shapefile is prepared and distributed by EPA regions. Selected attribute related tables which contain soil properties are provided. This data set is a subset of the original STATSGO data set developed by the National Cooperative Soil Survey.

Purpose:

STATSGO depicts information about soil features on or near the surface of the Earth. These data are collected as part of the National Cooperative Soil Survey. STASGO is designed primarily for regional, multi-county, riverbasin, state, and multi-state regional planning, management, and monitoring.

Supplemental_Information:

Intended_use_of_data: This data set was prepared to support the U.S. EPA BASINS (Better Assessment Science Integrating Point and Nonpoint Sources) System, Version 2.0.

References_Cited:

U.S. Department of Agriculture. 1975. Soil Taxonomy: A basic system of soil classification for making and interpreting soil surveys. Soil Conserv. Serv., U.S. Dep.Agric. Handb. 436.

U.S. Department of Agriculture. 1992. Keys to Soil Taxonomy. SMSS Technical Monograph No. 19. Soil Surv. Staff, Soil Conserv. Serv.

U.S. Department of Agriculture. 1993. National Soil Survey

Handbook, title 430-VI. Soil Surv. Staff, Soil Conserv. Serv.

U.S. Department of Agriculture. 1993. Soil Survey Manual. Soil Surv. Staff, U.S. Dep. Agric. Handbook 18.

U.S. Department of Agriculture. 1993. National Soil Survey Handbook, title 430-VI. Soil Surv. Staff, Soil Conserv. Serv.

U.S. Department of Agriculture. 1993. State Soil Data Users Guide.Soil Conserv. Serv., PDF format <http://www.ftw.nrcs.usda.gov/pdf/statsgo_db.pdf>

U.S. Department of Agriculture. 1994. State Soil Data use information.Soil Conserv. Serv.

U.S. Department of Agriculture. State Soil Survey Database Data Dictionary. Soil Conserv. Serv

<http://www.ftw.nrcs.usda.gov/stat_data.html>
Metadata <http://www.ftw.nrcs.usda.gov/stat2.html>

Time_Period_of_Content:

Time_Period_Information:

Single_Date/Time:

Calendar_Date: 19940000

Currentness_Reference: Publication Date

Status:

Progress: Complete
Maintenance_and_Update_Frequency: As needed

Spatial_Domain:

Bounding_Coordinates:

West_Bounding_Coordinate: -170.00
East_Bounding_Coordinate: -65.00
North_Bounding_Coordinate: 70.00
South_Bounding_Coordinate: 19.00

Keywords:

Theme:

Theme_Keyword_Thesaurus: None
Theme_Keyword: Conterminous United States
Theme_Keyword: Soils
Theme_Keyword: General Soils Map
Theme_Keyword: State Soil Geographic
Theme_Keyword: STATSGO

Place:

Place_Keyword_Thesaurus: Geographic Names Information System
Place_Keyword: Conterminous United States of America (CONUS)
Place_Keyword: Alabama AL
Place_Keyword: Alaska AK
Place_Keyword: Arizona AZ
Place_Keyword: Arkansas AR
Place_Keyword: California CA
Place_Keyword: Colorado CO
Place_Keyword: Connecticut CT
Place_Keyword: Delaware DE
Place_Keyword: District of Columbia DC
Place_Keyword: Florida FL
Place_Keyword: Georgia GA
Place_Keyword: Hawaii HI
Place_Keyword: Idaho ID
Place_Keyword: Illinois IL
Place_Keyword: Indiana IN
Place_Keyword: Iowa IA
Place_Keyword: Kansas KS
Place_Keyword: Kentucky KY
Place_Keyword: Louisiana LA
Place_Keyword: Maine ME
Place_Keyword: Maryland MD
Place_Keyword: Massachusetts MA
Place_Keyword: Michigan MI
Place_Keyword: Minnesota MN
Place_Keyword: Mississippi MS
Place_Keyword: Missouri MO
Place_Keyword: Montana MT
Place_Keyword: Nebraska NE
Place_Keyword: Nevada NV
Place_Keyword: New Hampshire NH
Place_Keyword: New Jersey NJ
Place_Keyword: New Mexico NM
Place_Keyword: New York NY
Place_Keyword: North Carolina NC
Place_Keyword: North Dakota ND
Place_Keyword: Ohio OH
Place_Keyword: Oklahoma OK
Place_Keyword: Oregon OR
Place_Keyword: Pennsylvania PA
Place_Keyword: Rhode Island RI
Place_Keyword: South Carolina SC
Place_Keyword: South Dakota SD
Place_Keyword: Tennessee TN
Place_Keyword: Texas TX
Place_Keyword: Utah UT
Place_Keyword: Vermont VT
Place_Keyword: Virginia VA
Place_Keyword: Washington WA
Place_Keyword: West Virginia WV
Place_Keyword: Wisconsin WI
Place_Keyword: Wyoming WY

Access_Constraints: None

Use_Constraints:

None. The U.S. Department of Agriculture, National Resources Conservation

Service should be acknowledged as the data source.

Data_Quality_Information:

Logical_Consistency_Report:

Certain node/geometry and topology (GT)-polygon/chain relationships are collected or generated to satisfy topological requirements. (The GT-polygon corresponds to the soil delineation). Some of these requirements include; chains must begin and end at nodes, chains must connect to each other at nodes, chains do not extend through nodes, left and right GT-polygons are defined for each chain element and are consistent throughout, and the chains representing the limits of the file (neatline) are free of gaps. The tests of logical consistency are performed using vendor software. The neatline is generated by connecting the explicitly entered four corners of the digital file. All data outside the enclosed region are ignored and all data crossing these geographically straight lines are clipped at the neatline. Data within a specified tolerance of the neatline are snapped to the neatline. Neatline straightening aligns the digitized edges of the digital data with the generated neatline (i.e., with the longitude/latitude lines in geographic coordinates). All internal polygons are tested for closure with vendor software and are checked on hard copy plots. All data are checked for common soil lines (i.e., adjacent polygons with the same label). Quadrangles are edge matched within the state, merged into a statewide data sets, and then edge matched to adjacent state data sets. Edge locations do not deviate from centerline to centerline by more than 0.01 inches.

Completeness_Report:

A map unit is a collection of areas defined and named the same in terms of their soil and/or nonsoil areas. Each map unit differs in some respect from all others in a survey area and is uniquely identified. Each individual area is a delineation. Each map unit consists of one to 21 components. In those few areas where detailed maps did not exist, reconnaissance soil surveys were combined with data on geology, topography, vegetation, climate, and remote sensing images to delineate map units and estimate the percentages of components. The STATSGO map unit components are soil series phases, and their percent composition represents the estimated areal proportion of each within STATSGO map unit. The composition for a map unit is generalized to represent the statewide extent of that map unit and not the extent of any single map unit delineation. These specifications provide a nationally consistent representation of STATSGO attribute data. The actual composition and interpretive purity of the map unit delineations were based on statistical analysis of transect data. The composition was largely determined by measuring transects on detailed soil survey maps. The number of transects used was proportional to the relative size, number, and complexity of the delineations. The combined data on the length of the map units crossed by the transects were used to determine the percentages of the different soil and nonsoil areas in each map unit. Specific limits were established on the classification of soils and the design and name of map units. These limits are outlined in U.S. Department of Agriculture. 1975. Soil Taxonomy: A basic system of soil classification for making and interpreting soil surveys. Soil Conserv. Serv., U.S. Dep. Agric. Handb. 436.; U.S. Department of Agriculture. 1992. Keys to Soil Taxonomy. SMSS Technical Monograph No. 19. Soil Surv. Staff, Soil Conserv. Serv.; U.S. Department of Agriculture. 1993. National Soil Survey Handbook, title 430-VI. Soil Surv. Staff, Soil Conserv. Serv.; and U.S. Department of Agriculture. 1993. Soil Survey Manual. Soil Surv. Staff, U.S. Dep. Agric. Handbook 18.

Adherence to National Cooperative Soil Survey standards and procedures is based on peer review, quality control, and quality assurance. Quality control is outlined in documents that reside with the Natural Resources Conservation Service state soil scientist.

Positional_Accuracy:

Horizontal_Positional_Accuracy:

Horizontal_Positional_Accuracy_Report:: The accuracy of these digital data is based upon their compilation to base maps that meet National Map Accuracy Standards. The difference in positional accuracy between the map unit boundaries in the field and their digitized map locations is unknown. The locational accuracy of soil delineations on the ground varies with the transition between map units. For example, in areas where changes in soils, climate, topography, and geology occur subtly across a portion of a state, the transition between soil map unit boundaries will be gradual. Where these features change abruptly, such as from an area of foothills to a lake plain, the transition will be very narrow. Soil delineation boundaries were digitized within 0.01 inches of their locations on the digitizing source. The digital map elements are edge matched between data sets. The data along each state boundary are matched against the data for the adjacent state. Edge locations generally do not deviate from centerline to centerline by more than 0.01 inch.

Lineage:

Process_Step:

Process_Description:: Map unit composition was determined by transecting or sampling areas on the more detailed soil maps and expanding the data statistically to characterize the whole map unit. Source Used Citation Abbreviation: SCS1
Process_Date: 19940000

Process_Step:

Process_Description:: Soil map unit lines and symbols were drafted in red pencil on a mylar overlay that was punch registered to fit the mylar USGS 1:250,000-scale topographic quadrangle. A detailed and complete edit was performed on all overlays before digitizing. The soil delineation overlays were raster scanned at a scanning resolution of at least 0.01 inches and converted to a vector format or were manually digitized on a digitizing tablet with a resolution of at least 0.001 inches. Four control points corresponding to the four corners of the quadrangles were used for registration during data collection. The control points were either explicitly entered or developed by the software. The data sets were edge matched and merged into statewide coverages. A detailed and complete edit was performed on all digital data. Source Used Citation Abbreviation: USGS1, SCS3
Process_Date: 19940000

Process_Step:

Process_Description:: The original state by state Arc/Info coverages were converted from their original projections (e.g. mostly Albers Conic Equal area with datum NAD27) to geographic decimal degrees projection with datum NAD 83. They were then converted to Arcview shape files using the Arc/Info ARCSHAPE command. Two related tables in Arcview DBF format were prepared to contain selected fields (i.e. soil properties) in the COMP and LAYER tables of the STATSGO database. For distribution with BASINS 2.0, the data layer was divided by EPA regions (i.e. distribution by CD). This involved merging the state by state shape files in Arcview to produce the EPA regional shape files. Other form of data distribution (e.g. by cataloging unit) is available through the web (<http://www.epa.gov/waterscience/BASINS).>
Process_Date: 19971200

Spatial_Data_Organization_Information:

Spatial_Reference_Information:

Horizontal_Coordinate_System_Definition:

Geographic:

Latitude_Resolution: 0.0001
Longitude_Resolution: 0.0001
Geographic_Coordinate_Units: Decimal Degrees

Geodetic_Model:

Horizontal_Datum_Name: North American Datum of 1983
Ellipsoid_Name: Geodetic Reference System 80
Semi-major_Axis: 6378137
Denominator_of_Flattening_Ratio: 298.257

Entity_and_Attribute_Information:

Detailed_Description:

Entity_Type:

Entity_Type_Label: Statsgo.SHP
Entity_Type_Definition: STATSGO point attribute table
Entity_Type_Definition_Source: STATSGO Data Users Guide

Attribute:

Attribute_Label: AREA

Attribute_Definition: Area of polygon

Attribute_Definition_Source: Assigned

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: 12
Enumerated_Domain_Value_Definition: Floating Value
Enumerated_Domain_Value_Definition_Source: Assigned

Attribute:

Attribute_Label: PERIMETER

Attribute_Definition: Perimeter of polygon

Attribute_Definition_Source: Assigned

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: 12
Enumerated_Domain_Value_Definition: Floating Value
Enumerated_Domain_Value_Definition_Source: Assigned

Attribute:

Attribute_Label: MUID

Attribute_Definition:

Map unit identification symbol created by concatenation of the two character State FIPS code and a three digit Arabic number.

Attribute_Definition_Source: STATSGO Data Users Guide (1993)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: 5
Enumerated_Domain_Value_Definition:: character ID values
Enumerated_Domain_Value_Definition_Source: USDA\SCS

Entity_Type:

Entity_Type_Label: STATSGOC.DBF
Entity_Type_Definition:: STATSGO related table containing information which apply to a specific component of a soil map unit
Entity_Type_Definition_Source: STATSGO Data Users Guide (1993)

Attribute:

Attribute_Label: MUID

Attribute_Definition:

Map unit identification symbol created by concatenation of the two character State FIPS code and a three digit Arabic number.

Attribute_Definition_Source: STATSGO Data Users Guide (1993)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: 5
Enumerated_Domain_Value_Definition:: character ID values
Enumerated_Domain_Value_Definition_Source: USDA\SCS

Attribute:

Attribute_Label: SEQNUM

Attribute_Definition:

Sequence number which identify the sequence of components in a map unit

Attribute_Definition_Source: STATSGO Data Users Guide (1993)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: 2
Enumerated_Domain_Value_Definition:: character ID values
Enumerated_Domain_Value_Definition_Source: USDA\SCS

Attribute:

Attribute_Label: MUIDSEQNUM

Attribute_Definition: Concatenation of MUID and sequence number

Attribute_Definition_Source: STATSGO Data Users Guide (1993)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: 7
Enumerated_Domain_Value_Definition:: character ID values
Enumerated_Domain_Value_Definition_Source: USDA\SCS

Attribute:

Attribute_Label: COMPNAME

Attribute_Definition:

Soil series name associated with the component or sequence number

Attribute_Definition_Source: STATSGO Data Users Guide (1993)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: 17
Enumerated_Domain_Value_Definition:: character ID values
Enumerated_Domain_Value_Definition_Source: USDA\SCS

Attribute:

Attribute_Label: S5ID

Attribute_Definition: Soil interpretation record

Attribute_Definition_Source: STATSGO Data Users Guide (1993)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: 6
Enumerated_Domain_Value_Definition:: character ID values
Enumerated_Domain_Value_Definition_Source: USDA\SCS

Attribute:

Attribute_Label: COMPPCT

Attribute_Definition:

The percentage of the component of the map unit.

Attribute_Definition_Source: STATSGO Data Users Guide (1993)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: 9
Enumerated_Domain_Value_Definition: Integer number
Enumerated_Domain_Value_Definition_Source: USDA\SCS

Attribute:

Attribute_Label: SLOPEL

Attribute_Definition:

The minimum value for the range of slope of a soil component within a map unit

Attribute_Definition_Source: STATSGO Data Users Guide (1993)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: 8
Enumerated_Domain_Value_Definition: Integer number
Enumerated_Domain_Value_Definition_Source: USDA\SCS

Attribute:

Attribute_Label: SLOPEH

Attribute_Definition:

The maximum value for the range of slope of a soil component within a map unit

Attribute_Definition_Source: STATSGO Data Users Guide (1993)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: 8
Enumerated_Domain_Value_Definition: Integer number
Enumerated_Domain_Value_Definition_Source: USDA\SCS

Attribute:

Attribute_Label: SURFTEX

Attribute_Definition:

Surface layer soil texture using USDA soil texture codes

Attribute_Definition_Source: STATSGO Data Users Guide (1993)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: 9
Enumerated_Domain_Value_Definition:: character ID values
Enumerated_Domain_Value_Definition_Source: USDA\SCS

Attribute:

Attribute_Label: ANFLOOD

Attribute_Definition: Annual flooding frequency

Attribute_Definition_Source: STATSGO Data Users Guide (1993)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: 4
Enumerated_Domain_Value_Definition:: character ID values
Enumerated_Domain_Value_Definition_Source: USDA\SCS

Attribute:

Attribute_Label: WTDEPL

Attribute_Definition:

Minimum value for the range in depth to the water table

Attribute_Definition_Source: STATSGO Data Users Guide (1993)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: 8
Enumerated_Domain_Value_Definition:: Floating point number
Enumerated_Domain_Value_Definition_Source: USDA\SCS

Attribute:

Attribute_Label: WTDEPH

Attribute_Definition:

Maximum value for the range in depth to the water table

Attribute_Definition_Source: STATSGO Data Users Guide (1993)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: 8
Enumerated_Domain_Value_Definition:: Floating point number
Enumerated_Domain_Value_Definition_Source: USDA\SCS

Attribute:

Attribute_Label: WTKIND

Attribute_Definition:

The type of water table (APPAR=apparent, ARTES = artesian, PERCH = perched)

Attribute_Definition_Source: STATSGO Data Users Guide (1993)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: 5
Enumerated_Domain_Value_Definition:: character ID values
Enumerated_Domain_Value_Definition_Source: USDA\SCS

Attribute:

Attribute_Label: ROCKDEPL

Attribute_Definition:

Minimum value for the range in depth to bedrock (inches)

Attribute_Definition_Source: STATSGO Data Users Guide (1993)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: 10
Enumerated_Domain_Value_Definition: Integer number
Enumerated_Domain_Value_Definition_Source: USDA\SCS

Attribute:

Attribute_Label: ROCKDEPH

Attribute_Definition:

Maximum value for the range in depth to bedrock (inches)

Attribute_Definition_Source: STATSGO Data Users Guide (1993)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: 10
Enumerated_Domain_Value_Definition: Integer number
Enumerated_Domain_Value_Definition_Source: USDA\SCS

Attribute:

Attribute_Label: HYDGRP

Attribute_Definition:

Soil hydrologic group (e.g. A,B,C,D,A/D,C/D)

Attribute_Definition_Source: STATSGO Data Users Guide (1993)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: 8
Enumerated_Domain_Value_Definition:: character ID values
Enumerated_Domain_Value_Definition_Source: USDA\SCS

Attribute:

Attribute_Label: DRAINAGE

Attribute_Definition:

Soil drainage class identifying the natural drainage condition of the soil.

Attribute_Definition_Source: STATSGO Data Users Guide (1993)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: 10
Enumerated_Domain_Value_Definition:: character ID values
Enumerated_Domain_Value_Definition_Source: USDA\SCS

Attribute:

Attribute_Label: HYDRIC

Attribute_Definition: Hydric soil rating

Attribute_Definition_Source: STATSGO Data Users Guide (1993)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: 8
Enumerated_Domain_Value_Definition:: character ID values
Enumerated_Domain_Value_Definition_Source: USDA\SCS

Attribute:

Attribute_Label: CLNIRR

Attribute_Definition: Nonirrigated capability class

Attribute_Definition_Source: STATSGO Data Users Guide (1993)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: 8
Enumerated_Domain_Value_Definition:: character ID values
Enumerated_Domain_Value_Definition_Source: USDA\SCS

Attribute:

Attribute_Label: CLIRR

Attribute_Definition: Irrigated capability class

Attribute_Definition_Source: STATSGO Data Users Guide (1993)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: 7
Enumerated_Domain_Value_Definition:: character ID values
Enumerated_Domain_Value_Definition_Source: USDA\SCS

Attribute:

Attribute_Label: PRIMFML

Attribute_Definition: Prime farmland classification

Attribute_Definition_Source: STATSGO Data Users Guide (1993)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: 9
Enumerated_Domain_Value_Definition:: character ID values
Enumerated_Domain_Value_Definition_Source: USDA\SCS

Entity_Type:

Entity_Type_Label: STATSGOL.DBF
Entity_Type_Definition:: STATSGO related table containing information which apply to a specific layer of a component of a soil map unit
Entity_Type_Definition_Source: USDA\SCS

Attribute:

Attribute_Label: MUID

Attribute_Definition:

Map unit identification symbol created by concatenation of the two character State FIPS code and a three digit Arabic number.

Attribute_Definition_Source: STATSGO Data Users Guide (1993)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: 5
Enumerated_Domain_Value_Definition:: character ID values
Enumerated_Domain_Value_Definition_Source: USDA\SCS

Attribute:

Attribute_Label: SEQNUM

Attribute_Definition:

Sequence number which identify the sequence of components in a map unit

Attribute_Definition_Source: STATSGO Data Users Guide (1993)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: 2
Enumerated_Domain_Value_Definition:: character ID values
Enumerated_Domain_Value_Definition_Source: USDA\SCS

Attribute:

Attribute_Label: MUIDSEQNUM

Attribute_Definition: Concatenation of MUID and sequence number

Attribute_Definition_Source: STATSGO Data Users Guide (1993)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: 7
Enumerated_Domain_Value_Definition:: character ID values
Enumerated_Domain_Value_Definition_Source: USDA\SCS

Attribute:

Attribute_Label: S5ID

Attribute_Definition: Soil interpretation record

Attribute_Definition_Source: STATSGO Data Users Guide (1993)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: 6
Enumerated_Domain_Value_Definition:: character ID values
Enumerated_Domain_Value_Definition_Source: USDA\SCS

Attribute:

Attribute_Label: LAYERNUM

Attribute_Definition:

Layer number which identify sequence in the soil profile

Attribute_Definition_Source: STATSGO Data Users Guide (1993)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: 1
Enumerated_Domain_Value_Definition: Integer number
Enumerated_Domain_Value_Definition_Source: USDA\SCS

Attribute:

Attribute_Label: LAYDEPL

Attribute_Definition:

Depth to the upper boundary of the soil layer or horizon (inches)

Attribute_Definition_Source: STATSGO Data Users Guide (1993)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: 6
Enumerated_Domain_Value_Definition: Integer number
Enumerated_Domain_Value_Definition_Source: USDA\SCS

Attribute:

Attribute_Label: LAYDEPH

Attribute_Definition:

Depth to the lower boundary of the soil layer or horizon (inches)

Attribute_Definition_Source: STATSGO Data Users Guide (1993)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: 6
Enumerated_Domain_Value_Definition: Integer number
Enumerated_Domain_Value_Definition_Source: USDA\SCS

Attribute:

Attribute_Label: TEXTURE1

Attribute_Definition:

USDA soil texture class for the specified layer or horizon

Attribute_Definition_Source: STATSGO Data Users Guide (1993)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: 10
Enumerated_Domain_Value_Definition:: Character ID values
Enumerated_Domain_Value_Definition_Source: USDA\SCS

Attribute:

Attribute_Label: TEXTURE2

Attribute_Definition:

USDA soil texture class for the specified layer or horizon

Attribute_Definition_Source: STATSGO Data Users Guide (1993)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: 10
Enumerated_Domain_Value_Definition:: Character ID values
Enumerated_Domain_Value_Definition_Source: USDA\SCS

Attribute:

Attribute_Label: TEXTURE3

Attribute_Definition:

USDA soil texture class for the specified layer or horizon

Attribute_Definition_Source: STATSGO Data Users Guide (1993)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: 10
Enumerated_Domain_Value_Definition:: Character ID values
Enumerated_Domain_Value_Definition_Source: USDA\SCS

Attribute:

Attribute_Label: KFACT

Attribute_Definition: Soil erodibility factor

Attribute_Definition_Source: STATSGO Data Users Guide (1993)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: 7
Enumerated_Domain_Value_Definition:: Floating point number
Enumerated_Domain_Value_Definition_Source: USDA\SCS

Attribute:

Attribute_Label: KFFACT

Attribute_Definition:

Soil erodibility factor, rock fragments free

Attribute_Definition_Source: STATSGO Data Users Guide (1993)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: 8
Enumerated_Domain_Value_Definition:: Floating point number
Enumerated_Domain_Value_Definition_Source: USDA\SCS

Attribute:

Attribute_Label: TFACT

Attribute_Definition: Soil loss tolerance factor

Attribute_Definition_Source: STATSGO Data Users Guide (1993)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: 7
Enumerated_Domain_Value_Definition: Integer number
Enumerated_Domain_Value_Definition_Source: USDA\SCS

Attribute:

Attribute_Label: WEG

Attribute_Definition: Wind erodibility group

Attribute_Definition_Source: STATSGO Data Users Guide (1993)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: 5
Enumerated_Domain_Value_Definition:: Character ID values
Enumerated_Domain_Value_Definition_Source: USDA\SCS

Attribute:

Attribute_Label: NO200L

Attribute_Definition:

Percent passing sieve no. 200 (e.g. less than 3 inches in size) - minimum value

Attribute_Definition_Source: STATSGO Data Users Guide (1993)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: 8
Enumerated_Domain_Value_Definition: Integer number
Enumerated_Domain_Value_Definition_Source: USDA\SCS

Attribute:

Attribute_Label: NO200H

Attribute_Definition:

Percent passing sieve no. 200 (e.g. less than 3 inches in size) - maximum value

Attribute_Definition_Source: STATSGO Data Users Guide (1993)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: 8
Enumerated_Domain_Value_Definition: Integer number
Enumerated_Domain_Value_Definition_Source: USDA\SCS

Attribute:

Attribute_Label: CLAYL

Attribute_Definition:

Percent clay (e.g. percent material less than 2 mm in size) - minimum value

Attribute_Definition_Source: STATSGO Data Users Guide (1993)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: 7
Enumerated_Domain_Value_Definition: Integer number
Enumerated_Domain_Value_Definition_Source: USDA\SCS

Attribute:

Attribute_Label: CLAYH

Attribute_Definition:

Percent clay (e.g. percent material less than 2 mm in size) - maximum value

Attribute_Definition_Source: STATSGO Data Users Guide (1993)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: 7
Enumerated_Domain_Value_Definition: Integer number
Enumerated_Domain_Value_Definition_Source: USDA\SCS

Attribute:

Attribute_Label: LLL

Attribute_Definition: Minimum percent liquid limit

Attribute_Definition_Source: STATSGO Data Users Guide (1993)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: 5
Enumerated_Domain_Value_Definition: Integer number
Enumerated_Domain_Value_Definition_Source: USDA\SCS

Attribute:

Attribute_Label: LLH

Attribute_Definition: Maximum percent liquid limit

Attribute_Definition_Source: STATSGO Data Users Guide (1993)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: 5
Enumerated_Domain_Value_Definition: Integer number
Enumerated_Domain_Value_Definition_Source: USDA\SCS

Attribute:

Attribute_Label: PIL

Attribute_Definition: Minimum percent plasticity limit

Attribute_Definition_Source: STATSGO Data Users Guide (1993)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: 5
Enumerated_Domain_Value_Definition: Integer number
Enumerated_Domain_Value_Definition_Source: USDA\SCS

Attribute:

Attribute_Label: PIH

Attribute_Definition: Maximum percent plasticity limit

Attribute_Definition_Source: STATSGO Data Users Guide (1993)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: 5
Enumerated_Domain_Value_Definition: Integer number
Enumerated_Domain_Value_Definition_Source: USDA\SCS

Attribute:

Attribute_Label: UNIFIED1

Attribute_Definition: Unified Engineering Classification (1)

Attribute_Definition_Source: STATSGO Data Users Guide (1993)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: 10
Enumerated_Domain_Value_Definition:: Character ID values
Enumerated_Domain_Value_Definition_Source: USDA\SCS

Attribute:

Attribute_Label: UNIFIED2

Attribute_Definition: Unified Engineering Classification (2)

Attribute_Definition_Source: STATSGO Data Users Guide (1993)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: 10
Enumerated_Domain_Value_Definition:: Character ID values
Enumerated_Domain_Value_Definition_Source: USDA\SCS

Attribute:

Attribute_Label: UNIFIED3

Attribute_Definition: Unified Engineering Classification (3)

Attribute_Definition_Source: STATSGO Data Users Guide (1993)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: 10
Enumerated_Domain_Value_Definition:: Character ID values
Enumerated_Domain_Value_Definition_Source: USDA\SCS

Attribute:

Attribute_Label: UNIFIED4

Attribute_Definition: Unified Engineering Classification (4)

Attribute_Definition_Source: STATSGO Data Users Guide (1993)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: 10
Enumerated_Domain_Value_Definition:: Character ID values
Enumerated_Domain_Value_Definition_Source: USDA\SCS

Attribute:

Attribute_Label: ASSHTO1

Attribute_Definition: ASSHTO Engineering Classification (1)

Attribute_Definition_Source: STATSGO Data Users Guide (1993)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: 9
Enumerated_Domain_Value_Definition:: Character ID values
Enumerated_Domain_Value_Definition_Source: USDA\SCS

Attribute:

Attribute_Label: ASSHTO2

Attribute_Definition: ASSHTO Engineering Classification (2)

Attribute_Definition_Source: STATSGO Data Users Guide (1993)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: 9
Enumerated_Domain_Value_Definition:: Character ID values
Enumerated_Domain_Value_Definition_Source: USDA\SCS

Attribute:

Attribute_Label: AASHTO3

Attribute_Definition: ASSHTO Engineering Classification (3)

Attribute_Definition_Source: STATSGO Data Users Guide (1993)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: 9
Enumerated_Domain_Value_Definition:: Character ID values
Enumerated_Domain_Value_Definition_Source: USDA\SCS

Attribute:

Attribute_Label: AASHTO4

Attribute_Definition: ASSHTO Engineering Classification (4)

Attribute_Definition_Source: STATSGO Data Users Guide (1993)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: 9
Enumerated_Domain_Value_Definition:: Character ID values
Enumerated_Domain_Value_Definition_Source: USDA\SCS

Attribute:

Attribute_Label: AWCL

Attribute_Definition: Low available water capacity (in/in)

Attribute_Definition_Source: STATSGO Data Users Guide (1993)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: 6
Enumerated_Domain_Value_Definition:: Floating point number
Enumerated_Domain_Value_Definition_Source: USDA\SCS

Attribute:

Attribute_Label: AWCH

Attribute_Definition: High available water capacity (in/in)

Attribute_Definition_Source: STATSGO Data Users Guide (1993)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: 6
Enumerated_Domain_Value_Definition:: Floating point number
Enumerated_Domain_Value_Definition_Source: USDA\SCS

Attribute:

Attribute_Label: BDL

Attribute_Definition: Low bulk density (g/cc)

Attribute_Definition_Source: STATSGO Data Users Guide (1993)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: 6
Enumerated_Domain_Value_Definition:: Floating point number
Enumerated_Domain_Value_Definition_Source: USDA\SCS

Attribute:

Attribute_Label: BDH

Attribute_Definition: High bulk density (g/cc)

Attribute_Definition_Source: STATSGO Data Users Guide (1993)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: 6
Enumerated_Domain_Value_Definition:: Floating point number
Enumerated_Domain_Value_Definition_Source: USDA\SCS

Attribute:

Attribute_Label: OML

Attribute_Definition: Minimum percent organic matter

Attribute_Definition_Source: STATSGO Data Users Guide (1993)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: 6
Enumerated_Domain_Value_Definition:: Floating point number
Enumerated_Domain_Value_Definition_Source:: STATSGO Data Users Guide (1993)

Attribute:

Attribute_Label: OMH

Attribute_Definition: Maximum percent organic matter

Attribute_Definition_Source: STATSGO Data Users Guide (1993)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: 6
Enumerated_Domain_Value_Definition:: Floating point number
Enumerated_Domain_Value_Definition_Source: USDA\SCS

Attribute:

Attribute_Label: PHL

Attribute_Definition: Minimum pH value

Attribute_Definition_Source: STATSGO Data Users Guide (1993)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: 6
Enumerated_Domain_Value_Definition:: Floating point number
Enumerated_Domain_Value_Definition_Source: USDA\SCS

Attribute:

Attribute_Label: PHH

Attribute_Definition: Maximum pH value

Attribute_Definition_Source: STATSGO Data Users Guide (1993)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: 6
Enumerated_Domain_Value_Definition:: Floating point number
Enumerated_Domain_Value_Definition_Source: USDA\SCS

Attribute:

Attribute_Label: SALINL

Attribute_Definition: Maximum salinity value (mmhos/cm)

Attribute_Definition_Source: STATSGO Data Users Guide (1993)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: 6
Enumerated_Domain_Value_Definition: Integer number
Enumerated_Domain_Value_Definition_Source: USDA\SCS

Attribute:

Attribute_Label: SALINH

Attribute_Definition: Minimum salinity value (mmhos/cm)

Attribute_Definition_Source: STATSGO Data Users Guide (1993)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: 6
Enumerated_Domain_Value_Definition: Integer number
Enumerated_Domain_Value_Definition_Source: USDA\SCS

Attribute:

Attribute_Label: SARL

Attribute_Definition: Minimum sodium absorption ratio

Attribute_Definition_Source: STATSGO Data Users Guide (1993)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: 6
Enumerated_Domain_Value_Definition:: Floating point number
Enumerated_Domain_Value_Definition_Source: USDA\SCS

Attribute:

Attribute_Label: SARH

Attribute_Definition: Maximum sodium absorption ratio

Attribute_Definition_Source: STATSGO Data Users Guide (1993)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: 6
Enumerated_Domain_Value_Definition:: Floating point number
Enumerated_Domain_Value_Definition_Source: USDA\SCS

Attribute:

Attribute_Label: CECL

Attribute_Definition: Lower cation exchange capacity

Attribute_Definition_Source: STATSGO Data Users Guide (1993)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: 6
Enumerated_Domain_Value_Definition:: Floating point number
Enumerated_Domain_Value_Definition_Source: USDA\SCS

Attribute:

Attribute_Label: CECH

Attribute_Definition: Higher cation exchange capacity

Attribute_Definition_Source: STATSGO Data Users Guide (1993)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: 6
Enumerated_Domain_Value_Definition:: Floating point number
Enumerated_Domain_Value_Definition_Source: USDA\SCS

Attribute:

Attribute_Label: CACO3L

Attribute_Definition: Minimum percent calcium carbonate

Attribute_Definition_Source: STATSGO Data Users Guide (1993)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: 8
Enumerated_Domain_Value_Definition: Integer number
Enumerated_Domain_Value_Definition_Source: USDA\SCS

Attribute:

Attribute_Label: CACO3H

Attribute_Definition: Maximum percent calcium carbonate

Attribute_Definition_Source: STATSGO Data Users Guide (1993)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: 8
Enumerated_Domain_Value_Definition: Integer number
Enumerated_Domain_Value_Definition_Source: USDA\SCS

Attribute:

Attribute_Label: GYPSUML

Attribute_Definition: Minimum percent sulfate

Attribute_Definition_Source: STATSGO Data Users Guide (1993)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: 8
Enumerated_Domain_Value_Definition: Integer number
Enumerated_Domain_Value_Definition_Source: USDA\SCS

Attribute:

Attribute_Label: GYPSUMH

Attribute_Definition: Maximum percent sulfate

Attribute_Definition_Source: STATSGO Data Users Guide (1993)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: 9
Enumerated_Domain_Value_Definition: Integer number
Enumerated_Domain_Value_Definition_Source: USDA\SCS

Attribute:

Attribute_Label: PERML

Attribute_Definition: Minimum permeability (in/hr)

Attribute_Definition_Source: STATSGO Data Users Guide (1993)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: 7
Enumerated_Domain_Value_Definition:: Floating point number
Enumerated_Domain_Value_Definition_Source: USDA\SCS

Attribute:

Attribute_Label: PERMH

Attribute_Definition: Maximum permeability (in/hr)

Attribute_Definition_Source: STATSGO Data Users Guide (1993)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: 7
Enumerated_Domain_Value_Definition:: Floating point number
Enumerated_Domain_Value_Definition_Source: USDA\SCS

Attribute:

Attribute_Label: SHRINKSW

Attribute_Definition:

Shrink-swell potential upon drying and wetting

Attribute_Definition_Source: STATSGO Data Users Guide (1993)

Attribute_Domain_Values:

Enumerated_Domain:

Enumerated_Domain_Value: 10
Enumerated_Domain_Value_Definition:: Character ID values
Enumerated_Domain_Value_Definition_Source: USDA\SCS

Overview_Description:

Entity_and_Attribute_Overview:

Map Unit Delineations are closed polygons that are generally geographic mixtures of groups of soils or soils and nonsoil areas. The map unit ID uniquely identifies each closed delineation, map unit. Each map unit ID is linked to a map unit name. The map unit ID is also the key for linking information in the Map Unit Interpretations Record tables.

Map Unit Delineations are described by the Map Unit Interpretations Record data base. This attribute data base gives the proportionate extent of the component soils and the properties for each soil. The data base contains both estimated and measured data on the physical and chemical soil properties and soil interpretations for engineering, water management, recreation, agronomic, woodland, range and wildlife uses of the soil. The Soil Map Unit Interpretations Record data base consist of the following relational tables; codes (data base codes) - stores information on all codes used in the data base comp (map unit component) - stores information which will apply to a specific component of a soil map unit compyld (component crop yield) - stores crop yield information for soil map unit components forest (forest understory) - stores information for plant cover as forest understory for soil map unit components interp (interpretation) - stores soil interpretation ratings (both limitation ratings and suitability ratings) to soil map unit components layer (soil layer) - stores characteristics which apply to soil layers for soil map unit components mapunit (map unit) - stores information which applies to all components of a soil map unit plantcom (plant composition) - stores plant symbols and percent of plant composition associated with components of soil map units plantnm (plant name) - stores the common and scientific names for plants used in the data base rsprod (range site production) - stores range site production information for soil map unit components taxclass (taxonomic classification) - stores the taxonomic classification for soils in the data base windbrk (windbreak) - stores information on recommended windbreak plants for soil map unit components wlhabit (wildlife habitat) - stores wildlife habitat information for soil map unit components woodland (woodland) - store information on common indicator trees for soil map unit components woodmgt (woodland management) - stores woodland management information for soil map unit components yldunits (yield units) - stores crop names and the units used to measure yield

For distribution with BASINS v2.0, only comp and layer related tables are included.

Entity_and_Attribute_Detail_Citation:

See Entity_and_Attribute_Information

Distribution_Information:

Distributor:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: USEPA/Office of Water/OST

Contact_Address:

Address_Type: Mailing Address
Address: 1200 Pennsylvania Ave., NW (4305T)
City: Washington
State_or_Province: District of Columbia
Postal_Code: 20460
Country: USA

Contact_Voice_Telephone: 202-566-0400

Contact_Facsimile_Telephone: 202-566-0409

Contact_Electronic_Mail_Address: basins@epa.gov

Hours_of_Service: 9-3 EST

Distribution_Liability:

Although these data have been processed successfully on a computer system at Tetra Tech, Inc., no warranty expressed or implied is made regarding the accuracy or utility of the data on any other system or for general or scientific purposes, nor shall the act of distribution constitute any such warranty. This disclaimer applies both to individual use of the data and aggregate use with other data. It is also strongly recommended that careful attention be paid to the contents of the metadata file associated with these data. The U.S. Environmental Protection Agency nor Tetra Tech, Inc. shall not be held liable for improper or incorrect use of the data described and/or contained herein.

Standard_Order_Process:

Digital_Form:

Digital_Transfer_Information:

Format_Name:: Environmental Systems Research Institute (ESRI) ArcView Shapefile

Digital_Transfer_Option:

Online_Option:

Computer_Contact_Information:

Network_Address:

Network_Resource_Name: <http://www.epa.gov/waterscience/basins/>

Offline_Option:

Offline_Media: CD-ROM
Recording_Format: ISO 9660

Fees: None

Ordering_Instructions:

When requesting data by phone or mail, please inquire about spatial data sets that work with Better Assessment Science Integrating Point and Nonpoint Sources (BASINS). The BASINS web page has instructions for downloading datasets. It also has a link to The National Center for Environmental Publications and Information (NCEPI), from which BASINS CD-ROMs may be ordered. Each CD-ROM contains the BASINS v2.0 Application and this data set along with others covering the spatial extent of an EPA Region.

Metadata_Reference_Information:

Metadata_Date: 20070611

Metadata_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization: USEPA/Office of Water/OST

Contact_Address:

Address_Type: Mailing Address
Address: 1200 Pennsylvania Ave., NW (4305T)
City: Washington
State_or_Province: District of Columbia
Postal_Code: 20460
Country: USA

Contact_Voice_Telephone: 202-566-0400

Contact_Facsimile_Telephone: 202-566-0409

Contact_Electronic_Mail_Address: basins@epa.gov

Metadata_Standard_Name: FGDC Content Standards for Digital Geospatial Metadata

Metadata_Standard_Version: 19940608

Generated by mp on Thu Aug 27 14:45:10 1998
Text Version

State Soil Geographic (STATSGO) Database for CONUS, Alaska, and Hawaii in BASINS

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