Oklahoma County tap water
0 of 12 water systems serving Oklahoma County with full PFAS testing averaged above a 2024 federal PFAS level at one or more sampling points.
- 40 community water systems list this county as served; 11 serve 3,300+ people with full PFAS testing.
- 28 had a health-based violation since 2021-10-26.
Largest systems serving this county
| System | Source | People served (whole system) | PFAS above a 2024 level? | Violations since 2021-10-26 |
|---|---|---|---|---|
| Oklahoma City | Surface water | 644,000 | No | 0 |
| Edmond Pwa | Surface water | 79,408 | No | 0 |
| Midwest City | Surface water | 55,935 | No | 0 |
| Tinker Air Force Base | Groundwater | 24,645 | No | 0 |
| Del City | Surface water | 22,128 | No | 1 |
| Bethany | Groundwater under surface influence | 20,307 | No | 1 |
| Deer Creek Rural Water Corp | Groundwater | 5,500 | No | 0 |
| Harrah | Groundwater | 4,190 | No | 1 |
| Nichols Hills | Groundwater | 4,020 | No | 1 |
| Choctaw Ua | Groundwater | 3,926 | No | 0 |
| Spencer | Groundwater | 3,746 | No | 1 |
Which one is yours? A county usually has several utilities. Your bill or your utility's annual water-quality report names yours. Population is for the whole system, which can cross county lines.
Not medical or legal advice. UCMR 5 results are screening data, not compliance determinations.
Sources and freshness
Public-water-system facts, violations and lead/copper results: EPA ECHO SDWA download (SDWIS snapshot 2026-10-13). PFAS and lithium results: EPA UCMR 5 final data (sampling 2023–2025). Both are U.S. government works, downloaded 2026-10-26. Numbers are computed by the published method; the same fields are in the open data files.