SWRCB · ~45,194 leaking tank & contamination sites · refreshed weekly

Leaking Tank & Contamination Sites in California

About 45,194 registered leaking tank & contamination sites in California, pulled from the California State Water Resources Control Board and geocoded, in one searchable API. Query the current inventory by radius, city, and county, or filter it into your environmental workflow.

Leaking Tank & Contamination Sites in California, one schema

Every leaking tank site California registers, normalized into one geocoded record. The same fields you get for every state.

FieldExample
Facility nameMain St Service Station
Address / city / countynormalized
Substancegasoline / diesel / used oil
Category / statusrelease / active
Coordinateslat / lng for radius search
Datesreported / closed
  • Records are public environmental information about the site, no personal data about any individual.
  • Sourced from the California State Water Resources Control Board and geocoded, refreshed weekly.
  • Filter by radius, city, county, and status to screen a precise California area.

Pull just leaking tank & contamination sites in California:

GET /storage_tank?state=CA&category=release&limit=50