National Water Quality Standards Database (NWQSD)
Description
The National Water Quality Standards Database (WQSDB) provides access to EPA and state water quality standards (WQS) information in text, tables, and maps. This data source was last updated in December 2007 and will no longer be updated.
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Tags
- environment
- substances
- pollutants-contaminants
- water-pollutants
- drinking-water
- united-states
- drinking-water-contaminants
- water
- regulated-contaminants-pollutants
- environmental-media-topics
- unregulated-contaminants-pollutants