Canadian County, OK
The federal environmental record for Canadian County (population 175,829): what is on file, where it is, and what remains open. Sources and retrieval dates are on the methodology page.
0
Superfund NPL sites
2
federal cleanup sites
1
PFAS-detecting water systems
13
TRI facilities
7
open tank releases
Drinking water: PFAS testing
Public water systems serving Canadian with at least one PFAS detection under UCMR5. The federal limit for PFOA and PFOS is 4 ng/L; EPA proposed in May 2026 to rescind the limits for the other compounds, which are shown for information.
| System | Highest results | Reading |
|---|---|---|
| PIEDMONT MUNICPAL AUTHORITY OK2000909 | PFBA: 5.9 ng/L PFPeA: 3.6 ng/L PFHxA: 3.3 ng/L | detected |
On a system with detections? Testing and treatment options
Facilities reporting toxic releases (2024)
13 facilities in Canadian filed TRI reports for 2024, totalling 110k lb released.
| Facility | City | Top chemicals | Total released |
|---|---|---|---|
| CANADIAN VALLEY GAS PLANT | CALUMET | n-Hexane, Toluene | 61k lb |
| CANA GAS PROCESSING PLANT | CALUMET | n-Hexane, Benzene | 29k lb |
| GEMINI COATINGS INC | EL RENO | Certain glycol ethers, Toluene | 10k lb |
| SOUTH CANADIAN NATURAL GAS PLANT | CALUMET | n-Hexane | 5k lb |
| GENERAL SHALE BRICK INC. - PLANT 49 | UNION CITY | Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size), Lead | 2k lb |
| FCI EL RENO | EL RENO | Lead | 1k lb |
| DCP MIDSTREAM LP/OKARCHE PLANT | OKARCHE | n-Hexane, Cyclohexane | 1k lb |
| PILOT THOMAS LOGISTICS LLC - EL RENO | EL RENO | Methanol | 795 lb |
| XEROX CORP OKLAHOMA CITY | YUKON | Styrene | 402 lb |
| DEXTER AXLE | EL RENO | Manganese | 24 lb |
| UNITED ENGINES LLC | OKLAHOMA CITY | - | 0 lb |
| YUKON BATCH PLANT | YUKON | - | 0 lb |
| UE MANUFACTURING LLC | OKLAHOMA CITY | - | 0 lb |
Underground fuel tanks
EPA's UST Finder records 291 tank facilities in Canadian: 229 tanks in service and 591 closed. 97 fuel releases are on record, of which 7 remain open. Open releases are cleanups that have not reached "no further action".
Radon
EPA maps Canadian 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 Canadian, including sites assessed but never listed. Presence here records that EPA had reason to look, not a finding of danger.
- BRITTON ROAD ILLEGAL DUMPINGEL RENO
- FEDERAL CORRECTION INSTITUTIONEL RENO