Every facility involved in an EPA federal enforcement action. 161,617 case-facility links via Registry ID + PGM_SYS_ID, joining epa_enforcement_cases to specific polluting facilities. Includes case-level role (defendant, related), facility EPA Registry ID, ICIS facility ID, NPDES ID, PGM_SYS_ID. Powers /epa-case/{activity_id} → facilities listing.
Every record in this dataset can be traced back to its primary source at https://echo.epa.gov/tools/data-downloads. Underlying content is a US federal government work (public domain under 17 USC §105); our derived data is licensed CC0 1.0.