Soil Survey Geographic (SSURGO) database for Du Page County, Illinois

Metadata:

• Identification_Information
• Data_Quality_Information
• Spatial_Data_Organization_Information
• Spatial_Reference_Information
• Entity_and_Attribute_Information
• Distribution_Information
• Metadata_Reference_Information

Identification_Information:

Citation:

Citation_Information:

Originator:

U.S. Department of Agriculture, Natural Resources Conservation Service

Publication_Date: 20060908

Title:

Soil Survey Geographic (SSURGO) database for Du Page County, Illinois

Publication_Information:

Publication_Place: Fort Worth, Texas

Publisher:

U.S. Department of Agriculture, Natural Resources Conservation Service

Other_Citation_Details: il043

Online_Linkage: URL:<http://SoilDataMart.nrcs.usda.gov/>

Description:

Abstract:

This data set is a digital soil survey and generally is the most detailed level of soil geographic data developed by the National Cooperative Soil Survey. The information was prepared by digitizing maps, by compiling information onto a planimetric correct base and digitizing, or by revising digitized maps using remotely sensed and other information.

This data set consists of georeferenced digital map data and computerized attribute data. The map data are in a soil survey area extent format and include a detailed, field verified inventory of soils and miscellaneous areas that normally occur in a repeatable pattern on the landscape and that can be cartographically shown at the scale mapped. A special soil features layer (point and line features) is optional. This layer displays the location of features too small to delineate at the mapping scale, but they are large enough and contrasting enough to significantly influence use and management. The soil map units are linked to attributes in the National Soil Information System relational database, which gives the proportionate extent of the component soils and their properties.

Purpose:

SSURGO depicts information about the kinds and distribution of soils on the landscape. The soil map and data used in the SSURGO product were prepared by soil scientists as part of the National Cooperative Soil Survey.

Supplemental_Information:

Digital versions of hydrography, cultural features, and other associated layers that are not part of the SSURGO data set may be available from the primary organization listed in the Point of Contact.

Time_Period_of_Content:

Time_Period_Information:

Range_of_Dates/Times:

Beginning_Date: 19990420

Ending_Date: 20060908

Currentness_Reference: publication date

Status:

Progress: Complete

Maintenance_and_Update_Frequency: As needed

Spatial_Domain:

Bounding_Coordinates:

West_Bounding_Coordinate: -88.263

East_Bounding_Coordinate: -87.914

North_Bounding_Coordinate: 41.994

South_Bounding_Coordinate: 41.685

Keywords:

Theme:

Theme_Keyword_Thesaurus: None

Theme_Keyword: soil survey

Theme_Keyword: soils

Theme_Keyword: Soil Survey Geographic

Theme_Keyword: SSURGO

Place:

Place_Keyword_Thesaurus: USGS Geographic Names Information System (GNIS)

Place_Keyword: Illinois State

Place_Keyword: Du Page County

Place_Keyword: Aurora North NE Quadrangle

Place_Keyword: Aurora North SE Quadrangle

Place_Keyword: Aurora South NE Quadrangle

Place_Keyword: Elmhurst NE Quadrangle

Place_Keyword: Elmhurst NW Quadrangle

Place_Keyword: Elmhurst SE Quadrangle

Place_Keyword: Elmhurst SW Quadrangle

Place_Keyword: Geneva NE Quadrangle

Place_Keyword: Geneva SE Quadrangle

Place_Keyword: Hinsdale NE Quadrangle

Place_Keyword: Hinsdale NW Quadrangle

Place_Keyword: Hinsdale SE Quadrangle

Place_Keyword: Hinsdale SW Quadrangle

Place_Keyword: Lombard NE Quadrangle

Place_Keyword: Lombard NW Quadrangle

Place_Keyword: Lombard SE Quadrangle

Place_Keyword: Lombard SW Quadrangle

Place_Keyword: Naperville NE Quadrangle

Place_Keyword: Naperville NW Quadrangle

Place_Keyword: Naperville SE Quadrangle

Place_Keyword: Naperville SW Quadrangle

Place_Keyword: Normantown NE Quadrangle

Place_Keyword: Normantown NW Quadrangle

Place_Keyword: Romeoville NE Quadrangle

Place_Keyword: Romeoville NW Quadrangle

Place_Keyword: Romeoville SE Quadrangle

Place_Keyword: Sag Bridge NE Quadrangle

Place_Keyword: Sag Bridge NW Quadrangle

Place_Keyword: Sag Bridge SW Quadrangle

Place_Keyword: West Chicago NE Quadrangle

Place_Keyword: West Chicago NW Quadrangle

Place_Keyword: West Chicago SE Quadrangle

Place_Keyword: West Chicago SW Quadrangle

Place_Keyword: Wheaton NE Quadrangle

Place_Keyword: Wheaton NW Quadrangle

Place_Keyword: Wheaton SE Quadrangle

Place_Keyword: Wheaton SW Quadrangle

Access_Constraints: None

Use_Constraints:

The U.S. Department of Agriculture, Natural Resources Conservation Service, should be acknowledged as the data source in products derived from these data.

This data set is not designed for use as a primary regulatory tool in permitting or citing decisions, but may be used as a reference source. This is public information and may be interpreted by organizations, agencies, units of government, or others based on needs; however, they are responsible for the appropriate application. Federal, State, or local regulatory bodies are not to reassign to the Natural Resources Conservation Service any authority for the decisions that they make. The Natural Resources Conservation Service will not perform any evaluations of these maps for purposes related solely to State or local regulatory programs.

Photographic or digital enlargement of these maps to scales greater than at which they were originally mapped can cause misinterpretation of the data. If enlarged, maps do not show the small areas of contrasting soils that could have been shown at a larger scale. The depicted soil boundaries, interpretations, and analysis derived from them do not eliminate the need for onsite sampling, testing, and detailed study of specific sites for intensive uses. Thus, these data and their interpretations are intended for planning purposes only. Digital data files are periodically updated. Files are dated, and users are responsible for obtaining the latest version of the data.

Point_of_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization:

U.S. Department of Agriculture, Natural Resources Conservation Service

Contact_Position: State Soil Scientist

Contact_Address:

Address_Type: mailing address

Address: USDA - Natural Resources Conservation Service

Address: Illinois State Office

Address: 2118 West Park Court

City: Champaign

State_or_Province: IL

Postal_Code: 61821

Contact_Voice_Telephone: 217-353-6643

Contact_TDD/TTY_Telephone: 800-877-8339

Contact_Electronic_Mail_Address: bob.mcleese@il.usda.gov

Data_Quality_Information:

Attribute_Accuracy:

Attribute_Accuracy_Report:

Attribute accuracy is tested by manual comparison of the source with hard copy plots and/or symbolized display of the map data on an interactive computer graphic system. Selected attributes that cannot be visually verified on plots or on screen are interactively queried and verified on screen. In addition, the attributes are tested against a master set of valid attributes. All attribute data conform to the attribute codes in the signed classification and correlation document and amendment(s).

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 are free of gaps. The tests of logical consistency are performed using vendor software. 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). Edge locations generally do not deviate from centerline to centerline by more than 0.01 inch. The soil survey of Du Page County, Illinois has been joined to the soil surveys of McHenry County, Kane County, Will County, and Lake County, Illinois.

Completeness_Report:

A map unit is a collection of areas defined and named in terms of their soil components or miscellaneous areas or both. Each map unit differs in some respect from all others in a survey area and each map unit has a symbol that uniquely identifies the map unit on a soil map. Each individual area, point, or line so identified on the map is a delineation.

Soil Scientists identify small areas of soils or miscellaneous areas that have properties and behavior significantly different than the named soils in the surrounding map unit. These minor components may be indicated as special features. If they have a minimal effect on use and management, or could not be precisely located, they may not be indicated on the map.

A map unit has specified kinds of soils or miscellaneous areas (map unit components), each with a designated range in proportionate extent. Map units include one or more kinds of soil or miscellaneous area. Miscellaneous areas are areas that have little or no recognizable soil.

Specific National Cooperative Soil Survey standards and procedures were used in the classification of soils, design and name of map units, and location of special soil features. These standards are outlined in Agricultural Handbook 18, Soil Survey Manual, 1993, USDA, NRCS; Agricultural Handbook 436, Soil Taxonomy, 1995, USDA, NRCS; and all Amendments; Keys to Soil Taxonomy, (current issue) USDA, NRCS; National Soil Survey Handbook, title 430-VI,(current issue) USDA, NRCS.

The actual composition and interpretive purity of the map unit delineations were based on data collected by scientists during the course of preparing the soil maps. Adherence to National Cooperative Soil Survey standards and procedures is based on peer review, quality control, and quality assurance. Quality control is outlined in the memorandum of understanding for the soil survey area and in documents that reside with the Natural Resources Conservation Service state soil scientist. Four kinds of map units are used in soil surveys: consociations, complexes, associations, and undifferentiated groups.

Consociations - Consociations are named for the dominant soil. In a consociation, delineated areas use a single name from the dominant component in the map unit. Dissimilar components are minor in extent. The soil component in a consociation may be identified at any taxonomic level. Soil series is the lowest taxonomic level. A consociation that is named as a miscellaneous area is dominantly that kind of area and minor components do not significantly affect the of the map unit. The total amount of dissimilar inclusions of other components in a map unit generally does not exceed about 15 percent if limiting and 25 percent if nonlimiting. A single component of a dissimilar limiting inclusion generally does not exceed 10 percent if very contrasting.

Complexes and associations - Complexes and associations consist of two or more dissimilar components that occur in a regularly repeating pattern. The total amount of other dissimilar components is minor extent. The following arbitrary rule determines whether complex or association is used in the name. The major components of an association can be separated at the scale of mapping. In either case, because the major components are sufficiently different in morphology or behavior, the map unit cannot be called a consociation. In each delineation of a complex or an association, each major component is normally present though their proportions may vary appreciably from one delineation to another. The total amount of inclusions in a map unit that are dissimilar to any of the major components does not exceed 15 percent if limiting and 25 percent if nonlimiting. A single kind of dissimilar limiting inclusion usually does not exceed 10 percent.

Undifferentiated groups - Undifferentiated groups consist of two or more components that are not consistently associated geographically and, therefore, do not always occur together in the same map delineation. These components are included in the same named map unit because their use and management are the same or very similar for common uses. Generally they are grouped together because some common feature, such as steepness, stoniness, or flooding, determines their use and management. If two or more additional map units would serve no useful purpose, they may be included in the same unit. Each delineation has at least one of the major components, and some may have all of them. The same principles regarding the proportion of minor components that apply to consociations also apply to undifferentiated groups. The same principles regarding proportion of inclusion apply to undifferentiated groups as to consociations.

Minimum documentation consists of three complete soil profile descriptions that are collected for each soil added to the legend, one additional per 3,000 acres mapped; three 10 observation transects for each map unit, one additional 10 point transect per 3,000 acres.

A defined standard or level of confidence in the interpretive purity of the map unit delineations is attained by adjusting the kind and intensity of field investigations. Field investigations and data collection are carried out in sufficient detail to name map units and to identify accurately and consistently areas of about 2 acres.

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 at a scale of 1 inch equals 1,000 feet. The difference in positional accuracy between the soil boundaries and special soil features locations 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, on long gently sloping landscapes the transition occurs gradually over many feet. Where landscapes change abruptly from steep to level, the transition will be very narrow. Soil delineation boundaries and special soil features generally were digitized within 0.01 inch of their locations on the digitizing source. The digital map elements are edge matched between data sets. The data along each quadrangle edge are matched against the data for the adjacent quadrangle. Edge locations generally do not deviate from centerline to centerline by more than 0.01 inch.

Lineage:

Source_Information:

Source_Citation:

Citation_Information:

Originator: U.S. Geological Survey

Publication_Date: 1972-1980

Title: multiple 7.5 minute topographic quadrangles

Geospatial_Data_Presentation_Form: map

Publication_Information:

Publication_Place: Rolla, Missouri

Publisher: U.S. Geological Survey

Source_Scale_Denominator: 24000

Type_of_Source_Media: stable-base material

Source_Time_Period_of_Content:

Time_Period_Information:

Single_Date/Time:

Calendar_Date: 1998

Source_Currentness_Reference: publication date

Source_Citation_Abbreviation: USGS1

Source_Contribution: reference material for compilation

Source_Information:

Source_Citation:

Citation_Information:

Originator: U.S. Geological Survey

Publication_Date: 1988

Title: multiple 3.75 minute orthophotographs

Geospatial_Data_Presentation_Form: remote sensing image

Publication_Information:

Publication_Place: Menlo Park, California

Publisher: U.S. Geological Survey

Source_Scale_Denominator: 12000

Type_of_Source_Media: stable-base material

Source_Time_Period_of_Content:

Time_Period_Information:

Single_Date/Time:

Calendar_Date: 1998

Source_Currentness_Reference: publication date

Source_Citation_Abbreviation: USGS2

Source_Contribution: base material for compilation

Source_Information:

Source_Citation:

Citation_Information:

Originator:

U.S. Department of Agriculture, Soil Conservation Service

Publication_Date: 1979

Title:

multiple Soil Survey of Du Page and part of Cook Counties, Illinois

Geospatial_Data_Presentation_Form: map

Publication_Information:

Publication_Place: Champaign, IL

Publisher: University of Illinois

Source_Scale_Denominator: 15840

Type_of_Source_Media: paper

Source_Time_Period_of_Content:

Time_Period_Information:

Single_Date/Time:

Calendar_Date: 1979

Source_Currentness_Reference: publication date

Source_Citation_Abbreviation: SCS1

Source_Contribution: basic reference about soils and landscapes

Source_Information:

Source_Citation:

Citation_Information:

Originator:

U.S. Department of Agriculture, Natural Resources Conservation Service

Publication_Date: unpublished material

Title: annotated overlays

Geospatial_Data_Presentation_Form: map

Source_Scale_Denominator: 12000

Type_of_Source_Media: stable-base material

Source_Time_Period_of_Content:

Time_Period_Information:

Single_Date/Time:

Calendar_Date: 1998

Source_Currentness_Reference: 1998

Source_Citation_Abbreviation: NRCS1

Source_Contribution: scanning source

Source_Information:

Source_Citation:

Citation_Information:

Originator:

U.S. Department of Agriculture, Natural Resources Conservation Service

Publication_Date: unpublished material

Title: DLG-3 files

Geospatial_Data_Presentation_Form: map

Source_Scale_Denominator: 12000

Type_of_Source_Media: magnetic tape

Source_Time_Period_of_Content:

Time_Period_Information:

Single_Date/Time:

Calendar_Date: 1999

Source_Currentness_Reference: 1999

Source_Citation_Abbreviation: NRCS2

Source_Contribution:

digital information containing area and special features

Source_Information:

Source_Citation:

Citation_Information:

Originator:

U.S. Department of Agriculture, Natural Resources Conservation Service

Publication_Date: 19990420

Title:

Soil Survey Geographic (SSURGO) database for Du Page County, Illinois

Geospatial_Data_Presentation_Form: map

Publication_Information:

Publication_Place: Ft. Worth, Texas

Publisher:

U.S. Department of Agriculture, Natural Resources Conservation Service, National Cartography and Geospatial Center

Source_Scale_Denominator: 12000

Type_of_Source_Media: online

Source_Time_Period_of_Content:

Time_Period_Information:

Single_Date/Time:

Calendar_Date: 2004

Source_Currentness_Reference: publication date

Source_Citation_Abbreviation: NRCS3

Source_Contribution: source used to apply revisions

Source_Information:

Source_Citation:

Citation_Information:

Originator:

U.S. Department of Agriculture, Natural Resources Conservation Service

Publication_Date: 2002

Title: MrSID compressed mosaic image for Du Page County, Illinois

Geospatial_Data_Presentation_Form: map

Publication_Information:

Publication_Place: Ft. Worth, Texas

Publisher:

U.S. Department of Agriculture, Natural Resources Conservation Service, National Cartography and Geospatial Center

Source_Scale_Denominator: 24000

Type_of_Source_Media: online

Source_Time_Period_of_Content:

Time_Period_Information:

Single_Date/Time:

Calendar_Date: 2004

Source_Currentness_Reference: publication date

Source_Citation_Abbreviation: NRCS4

Source_Contribution:

NAD83 digital ortho imagery used for quality control

Source_Information:

Source_Citation:

Citation_Information:

Originator:

U.S. Department of Agriculture, Natural Resources Conservation Service

Publication_Date: unpublished material

Title:

ARC INTERCHANGE files for the survey of Du Page County, Illinois

Geospatial_Data_Presentation_Form: map

Source_Scale_Denominator: 24000

Type_of_Source_Media: CD-ROM

Source_Time_Period_of_Content:

Time_Period_Information:

Single_Date/Time:

Calendar_Date: 2004

Source_Currentness_Reference: 2004

Source_Citation_Abbreviation: NRCS5

Source_Contribution:

digital information containing area and special soil features for evaluation

Source_Information:

Source_Citation:

Citation_Information:

Originator:

U.S. Department of Agriculture, Natural Resources Conservation Service

Publication_Date: 2004

Title:

National Soil Information System (NASIS) database for Du Page County, Illinois

Geospatial_Data_Presentation_Form: tabular digital data

Publication_Information:

Publication_Place: Fort Collins, Colorado

Publisher:

U.S. Department of Agriculture, Natural Resources Conservation Service, Information Technology Center

Type_of_Source_Media: online

Source_Time_Period_of_Content:

Time_Period_Information:

Single_Date/Time:

Calendar_Date: 2004

Source_Currentness_Reference: export certification date

Source_Citation_Abbreviation: NASIS

Source_Contribution:

map unit legend used for comparison to spatial map unit labels

Process_Step:

Process_Description:

Du Page County had a previously published soil survey, 1979, at 1:15,840 scale. A detailed evaluation found that significant changes in land use, soil classification, soil interpretations, and standards and procedures for making soil surveys made the 1979 survey obsolete.

Source_Used_Citation_Abbreviation: SCS1

Process_Date: 1997

Process_Step:

Process_Description:

Field procedures for the second order soil survey included plotting of soil boundaries determined by field observation and by interpretation of remotely sensed data. Boundaries were verified at closely spaced intervals, and soils in each delineation were identified by traversing and transecting the landscape. Soil scientists described and sampled the soils, analyzed samples in the laboratory, and statistically analyzed the data. The classification and map unit names were finalized at the final correlation in January 1998.

Source_Used_Citation_Abbreviation: USGS1, NRCS1

Process_Date: 1998

Process_Step:

Process_Description:

Soil polygons, special features and hydrography were manually compiled to 1:12000 scale orthophoto quads. Area, line and point features were digitized by Pacer Infotec, Portland, Oregon using proprietary software and provided as Digital Line Graph optional files. Mylar checkplots of each quadrangle were compared to the source documents to verify accuracy. The soil polygon and special feature files were exported to Arc/Info 7.1.1 and written to Digital Line Graph optional format using arcdlg command. Compilation, digitizing and quality control were performed by the soil scientists and cartographic technicians of the Illinois Natural Resources Conservation Service. The digital maps of soil lines and special features were also reviewed by the National Cartography and Geospatial Center staff for adherence to SSURGO standards in September 1998. NRCS, Michigan Soil Digitizing Unit, SSURGO Certification Center imported the data for verification in ARC/INFO 7.0.4. The data were edited. New DLGs reflecting these edits were written with ARC/INFO 7.04.

Source_Used_Citation_Abbreviation: USGS1, USGS2, NRCS1

Process_Date: 1999

Process_Step:

Process_Description:

The Map Unit Interpretation Record data base and feature table were developed by Natural Resources Conservation Service soil scientists according to national standards.

Source_Used_Citation_Abbreviation: NRCS1

Process_Date: 1997

Process_Step:

Process_Description:

The survey wide coverages from the online SSURGO data of April 1999 and compressed ortho mosaics were imported to ARC/GIS at the Natural Resources Conservation Service state office in Champaign, Illinois. Minor changes were made to map units in the survey in order to update the correlation of the survey area. ARC INTERCHANGE files were written and forwarded to certification staff at the Montana Digitizing Unit in Bozeman.

Source_Used_Citation_Abbreviation: NRCS3, NRCS4, NRCS5

Process_Date: 2004

Process_Step:

Process_Description:

The ARC INTERCHANGE files were imported to ARC/GIS 9.0 by certification staff at the Montana Digitizing Unit. Evaluation macros of May 2004 were applied to the data. Map unit labels were compared to an approved map unit legend from the National Soil Information System data base. ARCEDIT was used to join to adjacent survey boundaries and verify previous adjacent survey joins. The data were forwarded the soil data warehouse staging server.

Source_Used_Citation_Abbreviation: NRCS5, NASIS

Process_Date: 2004

Process_Step:

Process_Description:

The National Soil Information System data base was developed by Natural Resources Conservation Service soil scientists according to national standards.

Source_Used_Citation_Abbreviation: NRCS1, NRCS5

Process_Date: 2004

Process_Step:

Process_Description:

The Natural Resources Conservation Service State Soil Scientist or delegate, upon completion of data quality verification, determined that the tabular data should be released for official use. A selected set of map units and components in the soil survey legend was copied to a staging database, and rating values for selected interpretations were generated. The list of selected interpretations is stored in the database table named sainterp.

Source_Used_Citation_Abbreviation: NASIS

Process_Date: 20041213

Process_Step:

Process_Description:

The Natural Resources Conservation Service State Soil Scientist or delegate verified that the labels on the digitized soil map units link to map units in the tabular database, and certified the joined data sets for release to the Soil Data Warehouse. A system assigned version number and date stamp were added and the data were copied to the data warehouse. The tabular data for the map units and components were extracted from the data warehouse and reformatted into the soil data delivery data model, then stored in the Soil Data Mart. The spatial data were copied to the Soil Data Mart without change.

Source_Used_Citation_Abbreviation: NASIS

Process_Date: 20041214

Process_Step:

Process_Description:

The Natural Resources Conservation Service State Soil Scientist or delegate, upon completion of data quality verification, determined that the tabular data should be released for official use. A selected set of map units and components in the soil survey legend was copied to a staging database, and rating values for selected interpretations were generated. The list of selected interpretations is stored in the database table named sainterp.

Source_Used_Citation_Abbreviation: NASIS

Process_Date: 20041229

Process_Step:

Process_Description:

The Natural Resources Conservation Service State Soil Scientist or delegate verified that the labels on the digitized soil map units link to map units in the tabular database, and certified the joined data sets for release to the Soil Data Warehouse. A system assigned version number and date stamp were added and the data were copied to the data warehouse. The tabular data for the map units and components were extracted from the data warehouse and reformatted into the soil data delivery data model, then stored in the Soil Data Mart. The spatial data were copied to the Soil Data Mart without change.

Source_Used_Citation_Abbreviation: NASIS

Process_Date: 20041229

Process_Step:

Process_Description:

The Natural Resources Conservation Service State Soil Scientist or delegate, upon completion of data quality verification, determined that the tabular data should be released for official use. A selected set of map units and components in the soil survey legend was copied to a staging database, and rating values for selected interpretations were generated. The list of selected interpretations is stored in the database table named sainterp.

Source_Used_Citation_Abbreviation: NASIS

Process_Date: 20060320

Process_Step:

Process_Description:

The Natural Resources Conservation Service State Soil Scientist or delegate verified that the labels on the digitized soil map units link to map units in the tabular database, and certified the joined data sets for release to the Soil Data Warehouse. A system assigned version number and date stamp were added and the data were copied to the data warehouse. The tabular data for the map units and components were extracted from the data warehouse and reformatted into the soil data delivery data model, then stored in the Soil Data Mart. The spatial data were copied to the Soil Data Mart without change.

Source_Used_Citation_Abbreviation: NASIS

Process_Date: 20060320

Process_Step:

Process_Description:

The Natural Resources Conservation Service State Soil Scientist or delegate, upon completion of data quality verification, determined that the tabular data should be released for official use. A selected set of map units and components in the soil survey legend was copied to a staging database, and rating values for selected interpretations were generated. The list of selected interpretations is stored in the database table named sainterp.

Source_Used_Citation_Abbreviation: NASIS

Process_Date: 20060908

Process_Step:

Process_Description:

The Natural Resources Conservation Service State Soil Scientist or delegate verified that the labels on the digitized soil map units link to map units in the tabular database, and certified the joined data sets for release to the Soil Data Warehouse. A system assigned version number and date stamp were added and the data were copied to the data warehouse. The tabular data for the map units and components were extracted from the data warehouse and reformatted into the soil data delivery data model, then stored in the Soil Data Mart. The spatial data were copied to the Soil Data Mart without change.

Source_Used_Citation_Abbreviation: NASIS

Process_Date: 20060908

Spatial_Data_Organization_Information:

Direct_Spatial_Reference_Method: Vector

Spatial_Reference_Information:

Horizontal_Coordinate_System_Definition:

Geographic:

Geographic_Coordinate_Units: Decimal degrees

Latitude_Resolution: 0.0000001

Longitude_Resolution: 0.0000001

Geodetic_Model:

Horizontal_Datum_Name: North American Datum of 1983

Ellipsoid_Name: Geodetic Reference System 80

Semi-major_Axis: 6378137.000000

Denominator_of_Flattening_Ratio: 298.257222

Entity_and_Attribute_Information:

Detailed_Description:

Entity_Type:

Entity_Type_Label: Special Soil Features

Entity_Type_Definition:

Special Soil Features represent soil, miscellaneous area, or landform features that are too small to be digitized as soil delineations (area features).

Entity_Type_Definition_Source: Agricultural Handbook 18, Soil Survey Manual, 1993, USDA, SCS.

Attribute:

Attribute_Label: Special Soil Features Codes

Attribute_Definition:

Special Soil Features labels represent specific Special Soil Features. These features are identified with a descriptive label. The label is assigned to the point or line assigned to represent the feature on maps.

Attribute_Definition_Source:

Agricultural Handbook 18, Soil Survey Manual, 1993, USDA, SCS; National Soil Survey Handbook, Title 430-VI, part 647 (current issue), USDA, NRCS.

Attribute_Domain_Values:

Codeset_Domain:

Codeset_Name:

Classification and Correlation of the Soils of Du Page County, Illinois

Codeset_Source:

U.S. Department of Agriculture, Natural Resources Conservation Service

Overview_Description:

Entity_and_Attribute_Overview:

Map Unit Delineations are closed polygons that may be dominated by a single soil or miscellaneous area component plus allowable similar or dissimilar soils, or they can be geographic mixtures of groups of soils or soils and miscellaneous areas.

The map unit symbol uniquely identifies each closed map unit delineation. Each symbol corresponds to a map unit name. The map unit key is used to link to information in the National Soil Information System tables.

Map Unit Delineations are described by the National Soil Information System database. This attribute database gives the proportionate extent of the component soils and the properties for each soil. The database 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 National Soil Information System database contains static metadata. It documents the data structure and includes such information as what tables, columns, indexes, and relationships are defined as well as a variety of attributes of each of these database objects. Attributes include table and column descriptions and detailed domain information.

The National Soil Information System database also contains a distribution metadata. It records the criteria used for selecting map units and components for inclusion in the set of distributed data.

Special features are described in the feature table. It includes an area symbol, feature label, feature name, and feature description for each special and ad hoc feature in the survey area.

Entity_and_Attribute_Detail_Citation:

Soil Taxonomy: A basic system of soil classification for making and interpreting soil surveys. Agricultural Handbook 436, 1999, USDA, SCS.

Keys to Soil Taxonomy (current issue), USDA, SCS.

National Soil Survey Handbook, Title 430-VI, part 647 (current issue), USDA, NRCS.

Agricultural Handbook 18, Soil Survey Manual, 1993, USDA, SCS.

Distribution_Information:

Distributor:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization:

U.S. Department of Agriculture, Natural Resources Conservation Service, National Cartography and Geospatial Center

Contact_Address:

Address_Type: mailing and physical address

Address: 501 West Felix Street, Building 23, P.O. Box 6567

City: Fort Worth

State_or_Province: Texas

Postal_Code: 76115

Contact_Voice_Telephone: 800 672 5559

Contact_TDD/TTY_Telephone: 202 720 2600

Contact_Facsimile_Telephone: 817 509 3469

Resource_Description: Du Page County, Illinois SSURGO

Distribution_Liability:

Although these data have been processed successfully on a computer system at the U.S. Department of Agriculture, no warranty expressed or implied is made by the Agency regarding the utility of the data on any other system, nor shall the act of distribution constitute any such warranty. The U.S. Department of Agriculture will warrant the delivery of this product in computer readable format, and will offer appropriate adjustment of credit when the product is determined unreadable by correctly adjusted computer input peripherals, or when the physical medium is delivered in damaged condition. Request for adjustment of credit must be made within 90 days from the date of this shipment from the ordering site.

The U.S. Department of Agriculture, nor any of its agencies are liable for misuse of the data, for damage, for transmission of viruses, or for computer contamination through the distribution of these data sets. The U.S. Department of Agriculture (USDA) prohibits discrimination in all its programs and activities on the basis of race, color, national origin, sex, religion, age, disability, political beliefs, sexual orientation, or marital or family status. (Not all prohibited bases apply to all programs.)

Standard_Order_Process:

Digital_Form:

Digital_Transfer_Information:

Format_Name: ArcView shapefile

Format_Information_Content: spatial

File_Decompression_Technique: WinZip or equivalent

Transfer_Size: 14.0

Digital_Transfer_Option:

Online_Option:

Computer_Contact_Information:

Network_Address:

Network_Resource_Name: URL:<http://SoilDataMart.nrcs.usda.gov/>

Access_Instructions:

Select desired survey area at above Internet Web site. An email address is required for receipt of instructions on retrieval via anonymous FTP. Anticipate a delay between submission of request at Web site and receipt of email message.

Digital_Form:

Digital_Transfer_Information:

Format_Name: ARC/INFO coverage

Format_Information_Content: spatial

File_Decompression_Technique: WinZip or equivalent

Transfer_Size: 14.0

Digital_Transfer_Option:

Online_Option:

Computer_Contact_Information:

Network_Address:

Network_Resource_Name: URL:<http://SoilDataMart.nrcs.usda.gov/>

Access_Instructions:

Select desired survey area at above Internet Web site. An email address is required for receipt of instructions on retrieval via anonymous FTP. Anticipate a delay between submission of request at Web site and receipt of email message.

Digital_Form:

Digital_Transfer_Information:

Format_Name: ARC/INFO interchange file

Format_Information_Content: spatial

File_Decompression_Technique: WinZip or equivalent

Transfer_Size: 14.0

Digital_Transfer_Option:

Online_Option:

Computer_Contact_Information:

Network_Address:

Network_Resource_Name: URL:<http://SoilDataMart.nrcs.usda.gov/>

Access_Instructions:

Select desired survey area at above Internet Web site. An email address is required for receipt of instructions on retrieval via anonymous FTP. Anticipate a delay between submission of request at Web site and receipt of email message.

Digital_Form:

Digital_Transfer_Information:

Format_Name: ASCII

Format_Information_Content: keys and attributes

File_Decompression_Technique: WinZip or equivalent

Transfer_Size: 15.4

Digital_Transfer_Option:

Online_Option:

Computer_Contact_Information:

Network_Address:

Network_Resource_Name: URL:<http://SoilDataMart.nrcs.usda.gov/>

Access_Instructions:

Select desired survey area at above Internet Web site. An email address is required for receipt of instructions on retrieval via anonymous FTP. Anticipate a delay between submission of request at Web site and receipt of email message.

Fees:

There is currently no direct charge for requesting data or for retrieval via FTP.

Ordering_Instructions:

Visit the above mentioned Internet Web Site, select state or territory, then select individual soil survey area of interest. Spatial line data and locations of special feature symbols are in ESRI ArcGIS (ArcView,ArcInfo) shapefile, coverage and interchange (i.e., export) formats. The National Soil Information System attribute soil data are available in variable length, pipe delimited, ASCII file format.

Turnaround: Typically within four hours

Metadata_Reference_Information:

Metadata_Date: 20080820

Metadata_Contact:

Contact_Information:

Contact_Organization_Primary:

Contact_Organization:

U.S. Department of Agriculture, Natural Resources Conservation Service

Contact_Position: State Soil Scientist

Contact_Address:

Address_Type: mailing address

Address: USDA - Natural Resources Conservation Service

Address: Illinois State Office

Address: 2118 West Park Court

City: Champaign

State_or_Province: IL

Postal_Code: 61821

Contact_Voice_Telephone: 217-353-6643

Contact_TDD/TTY_Telephone: 800-877-8339

Contact_Electronic_Mail_Address: bob.mcleese@il.usda.gov

Metadata_Standard_Name: Content Standard for Digital Geospatial Metadata

Metadata_Standard_Version: FGDC-STD-001-1998