Imperial County, CA
The federal environmental record for Imperial County (population 179,057): what is on file, where it is, and what remains open. Sources and retrieval dates are on the methodology page.
1
Superfund NPL sites
8
federal cleanup sites
0
PFAS-detecting water systems
5
TRI facilities
25
open tank releases
Superfund NPL sites
| Site | City | Status | Listed |
|---|---|---|---|
| Stoker Company | Imperial | proposed | - |
Drinking water: PFAS testing
No public water system serving Imperial reported a PFAS detection in the UCMR5 national testing round. Systems serving under 3,300 people were only sampled in part, so absence from this table is not proof of absence in the water.
Facilities reporting toxic releases (2024)
5 facilities in Imperial filed TRI reports for 2024, totalling 263k lb released.
| Facility | City | Top chemicals | Total released |
|---|---|---|---|
| U.S. MARINE CORPS CHOCOLATE MOUNTAINS AERIAL GUNNERY RANGE | NILAND | Copper, Lead And Lead Compounds | 119k lb |
| SPRECKELS SUGAR CO INC. | BRAWLEY | Ammonia, Lead And Lead Compounds | 113k lb |
| US NAVY NAVAL AIR FACILITY EL CENTRO | EL CENTRO | Nitrate compounds (water dissociable; reportable only when in aqueous solution) | 21k lb |
| MESQUITE MINE | BRAWLEY | Hydrogen cyanide, Propylene | 10k lb |
| US GYPSUM CO | EL CENTRO | Lead compounds, Mercury compounds | 127 lb |
Underground fuel tanks
EPA's UST Finder records 89 tank facilities in Imperial: 260 tanks in service and 3 closed. 233 fuel releases are on record, of which 25 remain open. Open releases are cleanups that have not reached "no further action".
Radon
EPA maps Imperial as Zone 3, the lowest predicted indoor radon (under 2 pCi/L average). Radon and air quality are covered in depth on lung.com.
The record for one specific address
County figures blur what matters: distance. The Address Environmental Report runs these same federal datasets against one address and reports every site, tank, polluter and water result around it, with distances, in about a minute.
Get the report - $39All federal cleanup sites on file
The wider Superfund enterprise inventory (SEMS) for Imperial, including sites assessed but never listed. Presence here records that EPA had reason to look, not a finding of danger.
- CALEXICO HS MERCURYCALEXICO
- CHOCOLATE MOUNTAIN AERIAL GUNNERY RANGE - AIRPLANE TRAININGNILAND
- COACHELLA LANDFILLINDIO
- DESERT SITEANDRADE
- J R SIMPLOT COMPANYEL CENTRO
- NAVAL AIR FACILITY EL CENTROEL CENTRO
- SALTON SEA TEST BASESALTON CITY
- STOKER CHEMICALIMPERIAL