Illinois EPA · ~31,315 leaking tank & contamination sites · refreshed weekly

Leaking Tank & Contamination Sites in Illinois

About 31,315 registered leaking tank & contamination sites in Illinois, pulled from the Illinois EPA 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 Illinois, one schema

Every leaking tank site Illinois 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 Illinois EPA and geocoded, refreshed weekly.
  • Filter by radius, city, county, and status to screen a precise Illinois area.

Pull just leaking tank & contamination sites in Illinois:

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