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EPA Office of Water (OW): 303(d) Listed Impaired Waters by Causes of Impairment and Probable Sources

Metadata Updated: August 30, 2023

Under Section 303(d) of the CWA, states, territories, and authorized tribes (referred to here as states) are required to develop lists of impaired waters. These are waters that are too polluted or otherwise degraded to meet the state water quality standards. The law requires that these jurisdictions establish priority rankings for waters on the lists and develop TMDLs for these waters. Note: the CWA Section 303(d) list of impaired waters does not contain impaired waters with an established TMDL, impaired waters for which other pollution control mechanisms are in place and expected to attain water quality standards, or waters impaired as a result of pollution. For more information, please see EPA's Integrated Reporting Guidance at: https://www.epa.gov/tmdl/integrated-reporting-guidance

Access & Use Information

License: No license information was provided. If this work was prepared by an officer or employee of the United States government as part of that person's official duties it is considered a U.S. Government Work.

Downloads & Resources

Dates

Metadata Date May 16, 2016
Metadata Created Date August 30, 2023
Metadata Updated Date August 30, 2023
Reference Date(s) May 1, 2015 (publication)
Frequency Of Update notPlanned

Metadata Source

Harvested from Environmental Dataset Gateway ISO Geospatial Metadata

Additional Metadata

Resource Type Dataset
Metadata Date May 16, 2016
Metadata Created Date August 30, 2023
Metadata Updated Date August 30, 2023
Reference Date(s) May 1, 2015 (publication)
Responsible Party U.S. Environmental Protection Agency, Headquarters (Point of Contact)
Contact Email
Guid {631CE863-2DCD-4DA3-8F46-9D4D570E6A48}
Access Constraints Use Constraints: Please confirm that you are using the most recent copy of both data and metadata. Acknowledgement of the EPA would be appreciated., Access Constraints: None
Bbox East Long 180
Bbox North Lat 90
Bbox South Lat -90
Bbox West Long -180
Coupled Resource
Frequency Of Update notPlanned
Harvest Object Id 10635a80-06e4-4376-a018-b7211233e26e
Harvest Source Id 9b3cd81e-5515-4bb7-ad3c-5ae44de9b4bd
Harvest Source Title Environmental Dataset Gateway ISO Geospatial Metadata
Licence https://edg.epa.gov/EPA_Data_License.html
Licence Url https://edg.epa.gov/EPA_Data_License.html
Lineage This lineage was generated by the FGDC CSDGM to 19139 transformation
Metadata Language eng; USA
Metadata Type geospatial
Old Spatial {"type": "Polygon", "coordinates": [[[-180.0, -90.0], [180.0, -90.0], [180.0, 90.0], [-180.0, 90.0], [-180.0, -90.0]]]}
Progress completed
Spatial Data Service Type
Spatial Reference System
Spatial Harvester True

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