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Geographic Information System (GIS) shapefiles are available for download that represent varying spatial extents. The shapefiles that are available for download by state or watershed are generally more up-to-date than the national shapefiles. Information on how to obtain the state or watershed level shapefiles , as well as how to obtain the national shapefiles for selected programs are detailed below.
State or Watershed Level Shapefiles
You may download the spatial files representing the most up-to-date publicly available Water program data by State or Watershed from the NHD Reach Address Database (RAD) download page.
National Shapefiles
These static files reflect the information in the NHD Reach Address Database (RAD) on the date of extract. To be included in this dataset States and other jurisdictions must have submitted information to the program database, and that information must have been indexed to the RAD.Check the STATUS of available data.
303(d) Listed Impaired Waters:
| Spatial and Attribute Event Data | Metadata |
|
Shapefiles (123 MB) ESRI 9.2 File Geodatabase (62 MB) |
PDF XML |
| Date Extracted: July 16, 2008 | |
| Relational Key | |
| RAD source_featureid = ATTAINS listed_water_id (or LIST_ID from Expert Query Tool) | |
| Use our Expert Query tool. |
303(c) Water Quality Standards:
| Spatial and Attribute Event Data | Metadata |
|
Shapefiles (722 MB) ESRI 9.2 File Geodatabase (356 MB) |
PDF XML |
| Date Extracted: March 5, 2008 | |
| Relational Key | |
| RAD source_featureid = WQS wqs_entity_id | |
| For attribute data, please visit the Water Quality Standards Database Attributes page. |
| You will need Adobe Acrobat Reader to view the Adobe PDF files on this page. See EPA's PDF page for more information about getting and using the free Acrobat Reader. |