• Organization: U.S. Environmental Protection Agency
• Updated: 2020-06-08T00:00:00.000+00:00

State water quality assessment decisions reported to EPA under the Integrated Report (IR), and Clean Water Act Sections 303(d) and 305(b). This service provides summary information for each...

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• Organization: U.S. Environmental Protection Agency
• Updated: 2015-05-01T00:00:00.000+00:00

Archive geospatial download files for pre-2015 ATTAINS data, including: Pre-2015 303(d) Listed Impaired Waters Reach Indexed Dataset Archive, Pre-2015 305(b) Waters As Assessed Reach Indexed...

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• Organization: Department of the Interior
• Updated: 2022-10-28T00:00:00Z

This data set compiles regulatory information about river and stream impairments within the Chesapeake Bay watershed as part of a Chesapeake Bay watershed multi-stressor meta-analysis project....

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• Organization: Department of the Interior
• Updated: 2025-07-02T00:00:00Z

This dataset summarizes impairment status for HUC12 watersheds at the CONUS scale using the EPA publicly available Assessment, Total Maximum Daily Load (TMDL) Tracking and Implementation System...

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• Organization: Department of the Interior
• Updated: 2022-10-28T00:00:00Z

This data release contains relevant datasets used in the analysis for the Chesapeake Bay stressor identification project, for which results are described in Fanelli and others (in review). For...

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• Organization: U.S. Environmental Protection Agency
• Updated: 2026-01-19T00:00:00.000+00:00

ECHO provides integrated compliance and enforcement information for about 800,000 regulated facilities nationwide. Its features range from simple to advanced, catering to users who want to conduct...

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