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United States Environmental Protection Agency
Water Quality Standards Database
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Pictures of water pouring, fishing, fish, SCUBA diving and a mountain lake

Welcome to the April 2004 release of the National Water Quality Standards Database (WQSDB), the sixth release since April 2001. The WQSDB provides access to EPA and state water quality standards (WQS) information in text, tables, and maps.

This Web site provides access to several WQS reports with information about designated uses, waterbody names, state numeric water quality criteria, and EPA recommended numeric water quality criteria. Using standard reports, you can compare WQS information across the nation. Please click on the links in the left side-bar to explore the site.

This database is designed to be viewed using Internet Explorer®.

 

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