Mayes County, OK
The federal environmental record for Mayes County (population 39,889): what is on file, where it is, and what remains open. Sources and retrieval dates are on the methodology page.
0
Superfund NPL sites
6
federal cleanup sites
3
PFAS-detecting water systems
13
TRI facilities
1
open tank releases
Drinking water: PFAS testing
Public water systems serving Mayes 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 |
|---|---|---|
| OKLA ORDNANCE WORKS AUTHORITY OK1021602 | PFOS: 5.7 ng/L | above final limit |
| MAYES CO RWD # 2 OK3004608 | PFOS: 17.7 ng/L | above final limit |
| MAYES CO RWD #4 OK3004617 | PFBA: 17 ng/L | detected |
On a system with detections? Testing and treatment options
Facilities reporting toxic releases (2024)
13 facilities in Mayes filed TRI reports for 2024, totalling 6.8M lb released.
| Facility | City | Top chemicals | Total released |
|---|---|---|---|
| LSB CHEMICAL L.L.C. | PRYOR | Nitrate compounds (water dissociable; reportable only when in aqueous solution), Ammonia | 3.4M lb |
| PRYOR SOLAE | PRYOR | Nitrate compounds (water dissociable; reportable only when in aqueous solution), Ammonia | 3.2M lb |
| GRAND RIVER DAM AUTHORITY COAL FIRED COMPLEX | CHOUTEAU | Barium compounds (except for barium sulfate (CAS No. 7727-43-7)), Lead compounds | 113k lb |
| NORIT AMERICAS INC | PRYOR | Hydrochloric acid (acid aerosols including mists, vapors, gas, fog, and other airborne forms of any particle size), Polycyclic aromatic compounds | 40k lb |
| AMERICAN CASTINGS LLC | PRYOR | Manganese And Manganese Compounds, Copper And Copper Compounds | 20k lb |
| INTERPLASTIC CORP | PRYOR | Styrene, Dicyclopentadiene | 11k lb |
| APTUS MANUFACTURING I LLC | PRYOR | Polycyclic aromatic compounds | 2k lb |
| GAP ROOFING INC | PRYOR | Polycyclic aromatic compounds | 2k lb |
| LONE STAR IND. INC. DBA BUZZI UNICEM USA PRYOR CEMENT PLANT | PRYOR | Chromium and Chromium Compounds(except for chromite ore mined in the Transvaal Region), Lead And Lead Compounds | 109 lb |
| GOLD BOND BUILDING PRODUCTS - PRYOR | PRYOR | Lead And Lead Compounds | 59 lb |
| RAE CORP | PRYOR | Copper, Chromium | 17 lb |
| CHEVRON PHILLIPS CHEMICAL CO PERFORMANCE PIPE A DIV | PRYOR | - | 0 lb |
| PRYOR BATCH PLANT | PRYOR | - | 0 lb |
Underground fuel tanks
EPA's UST Finder records 137 tank facilities in Mayes: 98 tanks in service and 272 closed. 29 fuel releases are on record, of which 1 remain open. Open releases are cleanups that have not reached "no further action".
Radon
EPA maps Mayes as Zone 2, moderate predicted indoor radon (2 to 4 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 Mayes, including sites assessed but never listed. Presence here records that EPA had reason to look, not a finding of danger.
- FORT GIBSON RESERVOIRPRYOR
- FRAILEY'S RECYCLING EAST - CHOUTEAUCHOUTEAU
- FRAILEY'S SALVAGE - CHOUTEAUCHOUTEAU
- KAISER AGRICULTURAL CHEMICALSPRYOR
- PRYOR CHEM COPRYOR
- STRAWHUN CONCRETE PLANTPRYOR