County · Oklahoma
Sequoyah County, Oklahoma: drinking water records
This overview covers 8 ZIP codes and 14 community water systems in Sequoyah County. It also stands in for 0 ZIP codes whose utility has too little EPA data for a page of its own.
System population figures are summed from EPA registry records and can overlap where wholesalers and retail systems serve the same people. They are not a Census county-population estimate.
Water systems with the most complete records
| Water system | People served | PFAS survey results | PFAS found | Health-based violations | Lead, 9 in 10 homes at or below |
|---|---|---|---|---|---|
| Sequoyah Co. Rwd #8 OK1020210 | 13,460 | 120 | 0 | 3 | 0 ppb |
| Sallisaw OK1020206 | 8,510 | 120 | 0 | 4 | 1.1 ppb |
| Muldrow Pwa OK1020208 | 3,104 | 0 | 0 | 11 | 9.6 ppb |
| Sequoyah Co. Rwd #7 OK3006806 | 2,948 | 0 | 0 | 1 | 0 ppb |
| Roland OK1020212 | 2,842 | 0 | 0 | 2 | 0 ppb |
| Sequoyah Co. Rwd #4 OK3006809 | 1,750 | 0 | 0 | 4 | 0 ppb |
| Gore Pwa OK1021773 | 1,688 | 0 | 0 | 12 | 0 ppb |
| Vian OK3006812 | 1,445 | 0 | 0 | 1 | 0 ppb |
| East Central Oklahoma Water Authority OK1021713 | 1,200 | 0 | 0 | 4 | 0 ppb |
| Sequoyah Co. Rwd #3 OK3006804 | 1,040 | 0 | 0 | 5 | 1.5 ppb |
| Gans Utility Authority OK3006802 | 600 | 0 | 0 | 5 | 0 ppb |
| Lee Creek Rwd OK3006820 | 250 | 0 | 0 | 1 | 0 ppb |
| Sequoyah Co. Rwd #5 OK3006815 | 250 | 0 | 0 | 1 | 0 ppb |
| Sequoyah Co. Rwd #5 OK1021775 | 1,075 | 0 | 0 | 0 | 0 ppb |
ZIP reports in Sequoyah County
No ZIP report in this county is published yet.
Sources and scope
EPA UCMR 5 occurrence data, samples collected 2023-01-03 – 2026-06-17, final release, August 2026 (file dated Aug 28, 2026); EPA SDWIS via ECHO, 2026Q2 extract (file dated Jul 9, 2026); EPA service-area boundaries v3.0; Census 2020 ZCTAs. Page generated 2026-09-03.
Counts cover the systems that report this county to EPA. A water system may cross county lines. "Found" means at least one result at or above the laboratory reporting level; it is not a compliance finding.