Sequoyah County, OK
The federal environmental record for Sequoyah County (population 40,291): 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
0
PFAS-detecting water systems
3
TRI facilities
7
open tank releases
Drinking water: PFAS testing
No public water system serving Sequoyah 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)
3 facilities in Sequoyah filed TRI reports for 2024, totalling 859 lb released.
| Facility | City | Top chemicals | Total released |
|---|---|---|---|
| OK FOODS - MULDROW | MULDROW | Nitrate compounds (water dissociable; reportable only when in aqueous solution), Peracetic acid | 767 lb |
| U.S. LIME CO ST CLAIR | MARBLE CITY | Lead compounds | 92 lb |
| AVIAGEN FEED PROCESSING UNIT | SALLISAW | - | 0 lb |
Underground fuel tanks
EPA's UST Finder records 131 tank facilities in Sequoyah: 117 tanks in service and 268 closed. 33 fuel releases are on record, of which 7 remain open. Open releases are cleanups that have not reached "no further action".
Radon
EPA maps Sequoyah 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 Sequoyah, including sites assessed but never listed. Presence here records that EPA had reason to look, not a finding of danger.
- COFFEYVILLE RESOURCESSALLISAW
- ROBERT S KERR LOCK AND DAM 15SALLISAW