Rights

Licence
US Government work — public domain
Commercial reuse
Yes
Redistribution
Yes
Derivative use
Yes
Attribution required
No
Restrictions
Applies to material authored by US federal agencies. Third-party material carried within a federal product may be separately protected.
Terms last checked
23 August 2026

Access and coverage

Publisher
United States Environmental Protection Agency
Website
https://echo.epa.gov/
API
https://echo.epa.gov/tools/web-services
Geographic coverage
United States
Temporal coverage
1990 onwards
Update frequency
monthly
Formats
csv, json, api
Bulk download
Available
Registration required
No
Cost to Hydrionis
Free
Domains
enforcement, wastewater, contaminant