PFAS in Oklahoma tap water
13 of 166 tested systems measured above the federal limit. 68 had a detection of any kind.
Every public water system below was required by the EPA to test for 29 PFAS compounds. Sorted by the highest PFOA or PFOS reading, worst first. Find yours for the full set of readings and what removes them.
| Water system | Highest PFOA | Highest PFOS | Found | Against the 4 ppt limit |
|---|---|---|---|---|
| Broken Arrow Municipal Authority | none detected | 51.3 ppt | 6 of 29 | Above |
| Wagoner Co. Rwd #5 | none detected | 34 ppt | 6 of 29 | Above |
| Wagoner Co. Rwd #4 | none detected | 29.5 ppt | 5 of 29 | Above |
| Kay Co Rwd #5 (dale Water Corp) | none detected | 23 ppt | 4 of 29 | Above |
| Mayes Co Rwd # 2 | none detected | 17.7 ppt | 1 of 29 | Above |
| Nowata Municipal Authority | none detected | 9.4 ppt | 4 of 29 | Above |
| Stillwater Water Plant | none detected | 8.6 ppt | 5 of 29 | Above |
| Ponca City Mun Water | none detected | 8.1 ppt | 4 of 29 | Above |
| Edmond Pwa - Arcadia | none detected | 6.4 ppt | 6 of 29 | Above |
| Tri-county Rwd #2 | none detected | 6 ppt | 2 of 29 | Above |
| Okla Ordnance Works Authority | none detected | 5.7 ppt | 1 of 29 | Above |
| Bethany | 5.3 ppt | 5.2 ppt | 4 of 29 | Above |
| Logan Co Rwd #1 | 4.3 ppt | none detected | 5 of 29 | Above |
| Ada | none detected | none detected | 0 of 29 | Within |
| Adamson Rwd #8 | none detected | none detected | 1 of 29 | Within |
| Alfalfa Co Rws & Swmd #1 North | none detected | none detected | 0 of 29 | Within |
| Altus | none detected | none detected | 2 of 29 | Within |
| Altus Afb | none detected | none detected | 1 of 29 | Within |
| Alva | none detected | none detected | 0 of 29 | Within |
| Anadarko Public Works Authority | none detected | none detected | 0 of 29 | Within |
| Ardmore | none detected | none detected | 0 of 29 | Within |
| Bartlesville | none detected | none detected | 2 of 29 | Within |
| Bixby Public Works Authority | none detected | none detected | 0 of 29 | Within |
| Blackwell Municipal Authority | none detected | none detected | 0 of 29 | Within |
| Bristow Municipal Authority | none detected | none detected | 0 of 29 | Within |
| Broken Bow Pwa | none detected | none detected | 0 of 29 | Within |
| Bryan Co. Rw&sd #5 | none detected | none detected | 1 of 29 | Within |
| Bryan Co. Rws & Swmd #2 | none detected | none detected | 0 of 29 | Within |
| Caddo Co Rwd #3 | none detected | none detected | 0 of 29 | Within |
| Camargo Rwd #2 | none detected | none detected | 0 of 29 | Within |
| Checotah Pwa | none detected | none detected | 1 of 29 | Within |
| Cherokee Co. Rwd #11 | none detected | none detected | 3 of 29 | Within |
| Chickasha Municipal Authority | none detected | none detected | 0 of 29 | Within |
| Choctaw | none detected | none detected | 0 of 29 | Within |
| Claremore | none detected | none detected | 0 of 29 | Within |
| Clinton | none detected | none detected | 1 of 29 | Within |
| Collinsville | none detected | none detected | 0 of 29 | Within |
| Consolidated Rwd #3 Creek Co | none detected | none detected | 1 of 29 | Within |
| Coweta | none detected | none detected | 4 of 29 | Within |
| Craig Co Rwd #2 | none detected | none detected | 0 of 29 | Within |
| Creek Co Rwd # 1 | none detected | none detected | 1 of 29 | Within |
| Creek Co Rwd # 2 | none detected | none detected | 0 of 29 | Within |
| Cushing | none detected | none detected | 0 of 29 | Within |
| Deer Creek Rural Water Corp | none detected | none detected | 0 of 29 | Within |
| Del City | none detected | none detected | 3 of 29 | Within |
| Delaware Co Rwd # 7 | none detected | none detected | 2 of 29 | Within |
| Dewey Public Works Authority | none detected | none detected | 1 of 29 | Within |
| Duncan Public Utilities Authority | none detected | none detected | 4 of 29 | Within |
| Durant Utilities Authority | none detected | none detected | 0 of 29 | Within |
| El Reno | none detected | none detected | 0 of 29 | Within |
| Elk City | none detected | none detected | 0 of 29 | Within |
| Enid | none detected | none detected | 0 of 29 | Within |
| Eufaula Pwa | none detected | none detected | 1 of 29 | Within |
| Falls Creek Baptist Conference Center | none detected | none detected | 0 of 29 | Within |
| Fort Gibson | none detected | none detected | 0 of 29 | Within |
| Fort Sill Hqusafacfs | none detected | none detected | 0 of 29 | Within |
| Frederick | none detected | none detected | 2 of 29 | Within |
| Garvin Co Rwd #4 | none detected | none detected | 1 of 29 | Within |
| Glenpool Water | none detected | none detected | 0 of 29 | Within |
| Grady Co Rwd #6 | none detected | none detected | 0 of 29 | Within |
| Grove Municipal Services Auth. | none detected | none detected | 0 of 29 | Within |
| Guthrie | none detected | none detected | 4 of 29 | Within |
| Guymon | none detected | none detected | 0 of 29 | Within |
| Hallett Public Works Authority | none detected | none detected | 0 of 29 | Within |
| Harrah | none detected | none detected | 0 of 29 | Within |
| Heavener Utility Auth - Psg | none detected | none detected | 1 of 29 | Within |
| Henryetta | none detected | none detected | 1 of 29 | Within |
| Hobart | none detected | none detected | 1 of 29 | Within |
| Holdenville | none detected | none detected | 1 of 29 | Within |
| Hugo Municipal Authority | none detected | none detected | 0 of 29 | Within |
| Hydro Pwa | none detected | none detected | 0 of 29 | Within |
| Idabel Pwa | none detected | none detected | 0 of 29 | Within |
| Jefferson Co Cons Rwd #1 | none detected | none detected | 1 of 29 | Within |
| Jenks Pwa | none detected | none detected | 0 of 29 | Within |
| Ketchum Pwa | none detected | none detected | 0 of 29 | Within |
| Kingfisher | none detected | none detected | 0 of 29 | Within |
| Konawa School | none detected | none detected | 0 of 29 | Within |
| Lawton | none detected | none detected | 0 of 29 | Within |
| Leflore Co. Rwd #14 | none detected | none detected | 0 of 29 | Within |
| Leflore Co. Rwd #2 | none detected | none detected | 1 of 29 | Within |
| Lone Grove | none detected | none detected | 0 of 29 | Within |
| Longtown Rw&sd #1 (pittsburg Co.) | none detected | none detected | 1 of 29 | Within |
| Madill | none detected | none detected | 0 of 29 | Within |
| Mannford | none detected | none detected | 1 of 29 | Within |
| Marlow Pwa | none detected | none detected | 0 of 29 | Within |
| Marshall County Water Corp | none detected | none detected | 0 of 29 | Within |
| Mayes Co Rwd # 5 | none detected | none detected | 0 of 29 | Within |
| Mayes Co Rwd # 6 | none detected | none detected | 0 of 29 | Within |
| Mayes Co Rwd #4 | none detected | none detected | 1 of 29 | Within |
| Mcalester Pwa | none detected | none detected | 0 of 29 | Within |
| Mccurtain Co. Rwd #1 | none detected | none detected | 0 of 29 | Within |
| Mccurtain Co. Rwd #7 | none detected | none detected | 0 of 29 | Within |
| Mccurtain Co. Rwd #8 (mt. Fork Water) | none detected | none detected | 0 of 29 | Within |
| Mccurtain Co. Rwd #9 | none detected | none detected | 0 of 29 | Within |
| Mcintosh Co. Rwd #8 (texanna) | none detected | none detected | 2 of 29 | Within |
| Miami | none detected | none detected | 0 of 29 | Within |
| Midwest City | none detected | none detected | 0 of 29 | Within |
| Moore | none detected | none detected | 0 of 29 | Within |
| Murray Co Rwd # 1 | none detected | none detected | 0 of 29 | Within |
| Muskogee | none detected | none detected | 0 of 29 | Within |
| Muskogee Co. Rwd #1 (oktaha) | none detected | none detected | 0 of 29 | Within |
| Muskogee Co. Rwd #5 | none detected | none detected | 0 of 29 | Within |
| Mustang | none detected | none detected | 0 of 29 | Within |
| Newcastle | none detected | none detected | 1 of 29 | Within |
| Nichols Hills | none detected | none detected | 0 of 29 | Within |
| Noble | none detected | none detected | 1 of 29 | Within |
| Norman | none detected | none detected | 2 of 29 | Within |
| Okfuskee Co. Rwd #3 | none detected | none detected | 1 of 29 | Within |
| Okla Christian University | none detected | none detected | 0 of 29 | Within |
| Oklahoma City | none detected | none detected | 1 of 29 | Within |
| Oklahoma University | none detected | none detected | 0 of 29 | Within |
| Okmulgee | none detected | none detected | 0 of 29 | Within |
| Okmulgee Co. Rwd #6 (hectorville) | none detected | none detected | 1 of 29 | Within |
| Osage Co Rwd #15 | none detected | none detected | 1 of 29 | Within |
| Osu Water Plant | none detected | none detected | 1 of 29 | Within |
| Ottawa Co Rwd # 4 | none detected | none detected | 0 of 29 | Within |
| Owasso | none detected | none detected | 0 of 29 | Within |
| Pauls Valley | none detected | none detected | 1 of 29 | Within |
| Pawhuska | none detected | none detected | 0 of 29 | Within |
| Perry Water & Light Dept | none detected | none detected | 1 of 29 | Within |
| Piedmont Municpal Authority | none detected | none detected | 3 of 29 | Within |
| Pittsburg Co. Rwd #11 (kiowa) | none detected | none detected | 1 of 29 | Within |
| Pittsburg Co. Rwd #16 | none detected | none detected | 1 of 29 | Within |
| Pontotoc Co Rwd # 7 | none detected | none detected | 0 of 29 | Within |
| Pontotoc Co Rwd # 8 | none detected | none detected | 0 of 29 | Within |
| Porum Pwa | none detected | none detected | 1 of 29 | Within |
| Poteau Pwa | none detected | none detected | 0 of 29 | Within |
| Pryor | none detected | none detected | 0 of 29 | Within |
| Purcell | none detected | none detected | 0 of 29 | Within |
| Pushmataha Co. Rwd #3 | none detected | none detected | 0 of 29 | Within |
| Ramona Public Works Authority | none detected | none detected | 1 of 29 | Within |
| Randlett Pwa | none detected | none detected | 0 of 29 | Within |
| Rogers Co Rwd # 3 Cot Sta | none detected | none detected | 0 of 29 | Within |
| Rogers Co Rwd # 3 Lake Plant | none detected | none detected | 0 of 29 | Within |
| Rogers Co Rwd # 4 | none detected | none detected | 1 of 29 | Within |
| Rogers Co Rwd # 5 | none detected | none detected | 0 of 29 | Within |
| Rogers Co Rwd # 8 | none detected | none detected | 1 of 29 | Within |
| Sallisaw | none detected | none detected | 0 of 29 | Within |
| Sand Springs | none detected | none detected | 0 of 29 | Within |
| Sapulpa | none detected | none detected | 0 of 29 | Within |
| Sapulpa Rural Water Company | none detected | none detected | 0 of 29 | Within |
| Sayre | none detected | none detected | 0 of 29 | Within |
| Seminole | none detected | none detected | 0 of 29 | Within |
| Sequoyah Co. Water Association | none detected | none detected | 0 of 29 | Within |
| Shawnee Municipal Authority | none detected | none detected | 2 of 29 | Within |
| Skiatook Pwa | none detected | none detected | 1 of 29 | Within |
| Southern Okla Water Corp | none detected | none detected | 4 of 29 | Within |
| Spencer | none detected | none detected | 0 of 29 | Within |
| Stephens Co Rwd #5 | none detected | none detected | 0 of 29 | Within |
| Sulphur | none detected | none detected | 0 of 29 | Within |
| Tahlequah Pwa | none detected | none detected | 3 of 29 | Within |
| Tecumseh Utility Authority | none detected | none detected | 1 of 29 | Within |
| Tinker Afb Bio-env Eng | none detected | none detected | 1 of 29 | Within |
| Tulsa | none detected | none detected | 0 of 29 | Within |
| Tuttle | none detected | none detected | 3 of 29 | Within |
| Vinita Utilities Authority | none detected | none detected | 0 of 29 | Within |
| Wagoner | none detected | none detected | 0 of 29 | Within |
| Wagoner Co. Rwd #7 (new) | none detected | none detected | 0 of 29 | Within |
| Wagoner Co. Rwd #9 | none detected | none detected | 0 of 29 | Within |
| Washington Co Rwd #3 (new,#1) | none detected | none detected | 0 of 29 | Within |
| Water Distributors, Inc. | none detected | none detected | 1 of 29 | Within |
| Watonga | none detected | none detected | 0 of 29 | Within |
| Weatherford | none detected | none detected | 0 of 29 | Within |
| Wewoka Public Works Authority | none detected | none detected | 1 of 29 | Within |
| Woodward | none detected | none detected | 0 of 29 | Within |
| Yukon | none detected | none detected | 0 of 29 | Within |
All 166 systems the EPA tested in Oklahoma, every one of them with its own page. Each was tested for 29 PFAS compounds.
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Source, the EPA’s fifth Unregulated Contaminant Monitoring Rule, final dataset published 2026-10-15. Original data →