Every facility regulated under the Clean Air Act Risk Management Program (§112(r)) for storing/using hazardous chemicals above threshold quantities — 99,163 facilities — plus their reportable 5-year accident history: 13,244 accidents (toxic/flammable releases, fires, explosions, reactive incidents) with deaths (606), injuries (13,781), hospitalizations, evacuations, on/off-site property damage, contributing factors + corrective actions, and 15,280 accident-chemical links (chemical name + CAS + quantity released). Worst parent companies: BP Products, Albemarle, Equilon/Shell. The chemical-plant accident ledger EPA keeps statutorily-public but FOIA/reading-room-only — the CAA 112(r) gap in the hub's EPA coverage. INSTITUTION-LEVEL ONLY (all operator/contact/preparer person-PII dropped). Powers /chemical-facility/{id} canonical pages + /api/v1/rmp/{search,worst,facility,accident}. Joins to the entity/screening layer by parent-company name.
Every record in this dataset can be traced back to its primary source at https://www.epa.gov/rmp. Underlying content is a US federal government work (public domain under 17 USC §105); our derived data is licensed CC0 1.0.