County · Oklahoma
Grant County, Oklahoma: drinking water records
This overview covers 7 ZIP codes and 10 community water systems in Grant 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 |
|---|---|---|---|---|---|
| Medford OK2002704 | 1,172 | 0 | 0 | 1 | 0 ppb |
| Pond Creek OK2002702 | 982 | 0 | 0 | 1 | 0 ppb |
| Lamont OK2002705 | 417 | 0 | 0 | 1 | 0 ppb |
| R&c Water Corp OK3002703 | 400 | 0 | 0 | 1 | 1.7 ppb |
| Nash OK2002701 | 224 | 0 | 0 | 1 | 1.7 ppb |
| Sw Water INC OK3002706 | 200 | 0 | 0 | 1 | 5.5 ppb |
| Deer Creek OK2002711 | 147 | 0 | 0 | 21 | 0.8 ppb |
| Manchester OK2002703 | 104 | 0 | 0 | 1 | 3.5 ppb |
| Grant County Rwd #1 OK3002707 | 100 | 0 | 0 | 1 | 0.5 ppb |
| Wakita OK2002706 | 344 | 0 | 0 | 0 | 0.6 ppb |
ZIP reports in Grant 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.