Kay County, OK
The federal environmental record for Kay County (population 43,641): what is on file, where it is, and what remains open. Sources and retrieval dates are on the methodology page.
0
Superfund NPL sites
5
federal cleanup sites
2
PFAS-detecting water systems
10
TRI facilities
13
open tank releases
Drinking water: PFAS testing
Public water systems serving Kay 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 |
|---|---|---|
| PONCA CITY MUN WATER OK1021202 | PFOS: 8.1 ng/L PFHxS: 6.7 ng/L PFBS: 5.3 ng/L | above final limit |
| KAY CO RWD #5 (DALE WATER CORP) OK3003603 | PFOS: 23 ng/L PFHxS: 10 ng/L PFBA: 6 ng/L | above final limit |
On a system with detections? Testing and treatment options
Facilities reporting toxic releases (2024)
10 facilities in Kay filed TRI reports for 2024, totalling 1.9M lb released.
| Facility | City | Top chemicals | Total released |
|---|---|---|---|
| A-LINE TDS INC. | TONKAWA | Polychlorinated biphenyls | 1.3M lb |
| PHILLIPS 66 PONCA CITY SITE | PONCA CITY | Hydrogen cyanide, n-Hexane | 350k lb |
| JUPITER SULPHUR LLC | PONCA CITY | Ammonia, Hydrogen sulfide | 215k lb |
| AIR SYSTEM COMPONENTS LP | PONCA CITY | Certain glycol ethers | 28k lb |
| MERTZ MANUFACTURING INC | PONCA CITY | Xylene (mixed isomers), Ethylbenzene | 14k lb |
| CONTINENTAL CARBON CO PONCA CITY OK PLANT | PONCA CITY | Hydrogen sulfide, Carbon disulfide | 7k lb |
| CFM CORP | BLACKWELL | - | 0 lb |
| TONKAWA FOUNDRY INC | TONKAWA | - | 0 lb |
| PARRISH ENTERPRISES (DBA OKLAHOMA INVESTMENT CASTING CO) | BLACKWELL | - | 0 lb |
| EVANS & ASSOCIATES CONSTRUCTION CO INC | PONCA CITY | Lead | 0 lb |
Underground fuel tanks
EPA's UST Finder records 255 tank facilities in Kay: 135 tanks in service and 591 closed. 74 fuel releases are on record, of which 13 remain open. Open releases are cleanups that have not reached "no further action".
Radon
EPA maps Kay 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 Kay, including sites assessed but never listed. Presence here records that EPA had reason to look, not a finding of danger.
- BLACKWELL ZINCBLACKWELL
- GLOBE OIL AND REFINING COMPANYBLACKWELL
- GM PONCA IRON AND METAL INCPONCA CITY
- OSAGE POWER PLANTPONCA CITY
- USARC TRACY W. YOUNGPONCA CITY