County · Oklahoma
Ottawa County, Oklahoma: drinking water records
This overview covers 7 ZIP codes and 15 community water systems in Ottawa 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 |
|---|---|---|---|---|---|
| Miami OK2005813 | 13,704 | 240 | 0 | 0 | 2.1 ppb |
| Commerce OK2005810 | 2,645 | 0 | 0 | 1 | 1 ppb |
| Afton Pwa OK1021696 | 1,428 | 0 | 0 | 19 | 0 ppb |
| Fairland Public Works Authority OK2005809 | 1,025 | 0 | 0 | 1 | 0 ppb |
| Quapaw OK2005811 | 906 | 0 | 0 | 1 | 0 ppb |
| Ottawa Co Rwd #5 OK2005840 | 750 | 0 | 0 | 1 | 0 ppb |
| Ottawa Co Rwd # 2 OK2005804 | 700 | 0 | 0 | 1 | 0 ppb |
| Ottawa Co Rwd # 4 OK2005801 | 652 | 300 | 0 | 0 | 0 ppb |
| Ottawa Co Rwd #6 OK2005859 | 560 | 0 | 0 | 1 | 0 ppb |
| Ottawa Co Rwd #7 OK2005860 | 500 | 0 | 0 | 1 | 0 ppb |
| North Miami OK3005801 | 433 | 0 | 0 | 1 | 0 ppb |
| Ottawa Co Rwd # 3 OK2005806 | 140 | 0 | 0 | 1 | 0 ppb |
| Quapaw Tribe OK2005812 | 55 | 0 | 0 | 1 | 0 ppb |
| Ottawa Co Rwd # 1 OK2005805 | 458 | 0 | 0 | 0 | 0 ppb |
| Wyandotte Tribe of Oklahoma OK2005883 | 51 | 0 | 0 | 0 | 0 ppb |
ZIP reports in Ottawa 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.