Carter County, OK
The federal environmental record for Carter County (population 48,596): what is on file, where it is, and what remains open. Sources and retrieval dates are on the methodology page.
1
Superfund NPL sites
1
federal cleanup sites
1
PFAS-detecting water systems
8
TRI facilities
4
open tank releases
Superfund NPL sites
| Site | City | Status | Listed |
|---|---|---|---|
| Imperial Refining Company | Ardmore | deleted | 07/27/2000 |
Drinking water: PFAS testing
Public water systems serving Carter 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 |
|---|---|---|
| SOUTHERN OKLA WATER CORP OK1010830 | 6:2 FTS: 11.2 ng/L PFBA: 6.4 ng/L PFPeA: 5.2 ng/L | detected |
On a system with detections? Testing and treatment options
Facilities reporting toxic releases (2024)
8 facilities in Carter filed TRI reports for 2024, totalling 141k lb released.
| Facility | City | Top chemicals | Total released |
|---|---|---|---|
| VALERO REFINING CO -OKLAHOMA VALERO ARDMORE REFINERY | ARDMORE | Sulfuric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size), Nitrate compounds (water dissociable; reportable only when in aqueous solution) | 117k lb |
| EJ ARDMORE INC | ARDMORE | Manganese And Manganese Compounds, Nickel And Nickel Compounds | 12k lb |
| MICHELIN N.A. INC. ARDMORE PLANT | ARDMORE | Zinc compounds | 12k lb |
| MEDXL | ARDMORE | Ethylene oxide | 44 lb |
| ATLAS ROOFING CORP | ARDMORE | Polycyclic aromatic compounds | 1 lb |
| IFS COATINGS INC | ARDMORE | - | 0 lb |
| ARDMORE BATCH PLANT | ARDMORE | - | 0 lb |
| ERGON ASPHALT & EMULSIONS INC. - ARDMORE | ARDMORE | - | 0 lb |
Underground fuel tanks
EPA's UST Finder records 319 tank facilities in Carter: 151 tanks in service and 660 closed. 67 fuel releases are on record, of which 4 remain open. Open releases are cleanups that have not reached "no further action".
Radon
EPA maps Carter 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 Carter, including sites assessed but never listed. Presence here records that EPA had reason to look, not a finding of danger.
- IMPERIAL REFINING COMPANYARDMORE