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PFAS in drinking water: Oklahoma

EPA UCMR 5 results for 166 public water systems. 68 had at least one PFAS detected; 13 had a highest single PFOA or PFOS result above 4.0 ppt.

UCMR 5 is a one-time EPA monitoring program, not a compliance determination. The values shown are the highest single sample result at any of the system's sampling points; one result above 4.0 ppt does not mean the system violates the PFAS rule, which is judged on running annual averages under separate compliance monitoring. Results describe the public water system, not an individual home.

Water systemServesPFOA max (ppt)PFOS max (ppt)PFAS detected
Ada
OK2006201		Pontotoc CountyNDND0
Adamson RWD #8
OK3006112		Pittsburg CountyNDND1
Alfalfa Co RWS & SWMD #1 North
OK2000201		Alfalfa CountyNDND0
Altus
OK1011501		Jackson CountyNDND2
Altus AFB
OK3003303		Jackson CountyNDND1
Alva
OK2007603		Woods CountyNDND0
Anadarko Public Works Authority
OK1010806		Caddo CountyNDND0
Ardmore
OK1010814		Carter CountyNDND0
Bartlesville
OK1021401		Washington CountyNDND2
Bethany
OK2005519		Oklahoma County5.35.24
Bixby Public Works Authority
OK3007243		Tulsa CountyNDND0
Blackwell Municipal Authority
OK1021101		Kay CountyNDND0
Bristow Municipal Authority
OK2001910		Creek CountyNDND0
Broken Arrow Municipal Authority
OK1021508		Tulsa CountyND51.36
Broken Bow Pwa
OK1010214		McCurtain CountyNDND0
Bryan Co. RW&SD #5
OK3000704		Bryan CountyNDND1
Bryan Co. RWS & SWMD #2
OK1010604		Bryan CountyNDND0
Caddo Co RWD #3
OK2000816		Caddo CountyNDND0
Camargo RWD #2
OK2002202		Dewey CountyNDND0
Checotah Pwa
OK1020515		McIntosh CountyNDND1
Cherokee Co. RWD #11
OK1221637		Cherokee CountyNDND3
Chickasha Municipal Authority
OK1010821		Grady CountyNDND0
Choctaw
OK2005510		Oklahoma CountyNDND0
Claremore
OK1021512		Rogers CountyNDND0
Clinton
OK1010828		Custer CountyNDND1
Collinsville
OK1021505		Tulsa CountyNDND0
Consolidated RWD #3 Creek Co
OK3001916		Creek CountyNDND1
Coweta
OK1021509		Wagoner CountyNDND4
Craig Co RWD #2
OK3001802		Craig CountyNDND0
Creek Co RWD # 1
OK1020419		Creek CountyNDND1
Creek Co RWD # 2
OK3001902		Creek CountyNDND0
Cushing
OK2006061		Payne CountyNDND0
Deer Creek Rural Water Corp
OK2005504		Oklahoma CountyNDND0
Del City
OK1020805		Oklahoma CountyNDND3
Delaware Co RWD # 7
OK3002138		Delaware CountyNDND2
Dewey Public Works Authority
OK3007402		Washington CountyNDND1
Duncan Public Utilities Authority
OK1010809		Stephens CountyNDND4
Durant Utilities Authority
OK1010601		Bryan CountyNDND0
Edmond Pwa - Arcadia
OK1020723		Oklahoma CountyND6.46
El Reno
OK2000902		Canadian CountyNDND0
Elk City
OK2000501		Beckham CountyNDND0
Enid
OK2002412		Garfield CountyNDND0
Eufaula Pwa
OK1020514		McIntosh CountyNDND1
Falls Creek Baptist Conference Center
OK1010840		Murray CountyNDND0
Fort Gibson
OK1021622		Muskogee CountyNDND0
Fort Sill Hqusafacfs
OK3001601		Comanche CountyNDND0
Frederick
OK1011401		Tillman CountyNDND2
Garvin Co RWD #4
OK3002503		Garvin CountyNDND1
Glenpool Water
OK3007223		Tulsa CountyNDND0
Grady Co RWD #6
OK3002603		Grady CountyNDND0
Grove Municipal Services Auth.
OK1021614		Delaware CountyNDND0
Guthrie
OK1020903		Logan CountyNDND4
Guymon
OK2007003		Texas CountyNDND0
Hallett Public Works Authority
OK2005905		Pawnee CountyNDND0
Harrah
OK2005506		Oklahoma CountyNDND0
Heavener Utility Auth - PSG
OK1020101		Le Flore CountyNDND1
Henryetta
OK1020709		Okmulgee CountyNDND1
Hobart
OK1011502		Kiowa CountyNDND1
Holdenville
OK1020803		Hughes CountyNDND1
Hugo Municipal Authority
OK1010314		Choctaw CountyNDND0
Hydro Pwa
OK2000812		Caddo CountyNDND0
Idabel Pwa
OK1010203		McCurtain CountyNDND0
Jefferson Co Cons RWD #1
OK3003401		Jefferson CountyNDND1
Jenks Pwa
OK3007201		Tulsa CountyNDND0
Kay Co RWD #5 (Dale Water Corp)
OK3003603		Kay CountyND234
Ketchum Pwa
OK1021612		Craig CountyNDND0
Kingfisher
OK2003702		Kingfisher CountyNDND0
Konawa School
OK2006713		Seminole CountyNDND0
Lawton
OK1011303		Comanche CountyNDND0
Leflore Co. RWD #14
OK3004001		Le Flore CountyNDND0
Leflore Co. RWD #2
OK3004007		Le Flore CountyNDND1
Logan Co RWD #1
OK2004207		Logan County4.3ND5
Lone Grove
OK2001007		Carter CountyNDND0
Longtown RW&SD #1 (Pittsburg Co.)
OK1020623		Pittsburg CountyNDND1
Madill
OK1010820		Marshall CountyNDND0
Mannford
OK1020909		Creek CountyNDND1
Marlow Pwa
OK2006907		Stephens CountyNDND0
Marshall County Water Corp
OK1010848		Marshall CountyNDND0
Mayes Co RWD # 2
OK3004608		Mayes CountyND17.71
Mayes Co RWD # 5
OK3004616		Mayes CountyNDND0
Mayes Co RWD # 6
OK1021666		Mayes CountyNDND0
Mayes Co RWD #4
OK3004617		Mayes CountyNDND1
Mcalester Pwa
OK1020609		Pittsburg CountyNDND0
Mccurtain Co. RWD #1
OK3004806		McCurtain CountyNDND0
Mccurtain Co. RWD #7
OK3004801		McCurtain CountyNDND0
Mccurtain Co. RWD #8 (Mt. Fork Water)
OK1010207		McCurtain CountyNDND0
Mccurtain Co. RWD #9
OK3004820		McCurtain CountyNDND0
Mcintosh Co. RWD #8 (Texanna)
OK1020529		McIntosh CountyNDND2
Miami
OK2005813		Ottawa CountyNDND0
Midwest City
OK1020806		Oklahoma CountyNDND0
Moore
OK2001412		Cleveland CountyNDND0
Murray Co RWD # 1
OK2005012		Murray CountyNDND0
Muskogee
OK1021607		Muskogee CountyNDND0
Muskogee Co. RWD #1 (Oktaha)
OK3005106		Muskogee CountyNDND0
Muskogee Co. RWD #5
OK3005107		Muskogee CountyNDND0
Mustang
OK2000922		Canadian CountyNDND0
Newcastle
OK2004704		McClain CountyNDND1
Nichols Hills
OK2005501		Oklahoma CountyNDND0
Noble
OK2001411		Cleveland CountyNDND1
Norman
OK1020801		Cleveland CountyNDND2
Nowata Municipal Authority
OK1021503		Nowata CountyND9.44
Okfuskee Co. RWD #3
OK3005401		Okfuskee CountyNDND1
Okla Christian University
OK7005566		Oklahoma CountyNDND0
Okla Ordnance Works Authority
OK1021602		Mayes CountyND5.71
Oklahoma City
OK1020902		Oklahoma CountyNDND1
Oklahoma University
OK3001414		Cleveland CountyNDND0
Okmulgee
OK1020708		Okmulgee CountyNDND0
Okmulgee Co. RWD #6 (Hectorville)
OK3005611		Okmulgee CountyNDND1
Osage Co RWD #15
OK3005736		Osage CountyNDND1
Osu Water Plant
OK1020910		Payne CountyNDND1
Ottawa Co RWD # 4
OK2005801		Ottawa CountyNDND0
Owasso
OK3007218		Tulsa CountyNDND0
Pauls Valley
OK1010808		Garvin CountyNDND1
Pawhuska
OK1021301		Osage CountyNDND0
Perry Water & Light Dept
OK1021206		Noble CountyNDND1
Piedmont Municpal Authority
OK2000909		Canadian CountyNDND3
Pittsburg Co. RWD #11 (Kiowa)
OK3006105		Pittsburg CountyNDND1
Pittsburg Co. RWD #16
OK3006106		Pittsburg CountyNDND1
Ponca City Mun Water
OK1021202		Kay CountyND8.14
Pontotoc Co RWD # 7
OK3006215		Pontotoc CountyNDND0
Pontotoc Co RWD # 8
OK2006215		Pontotoc CountyNDND0
Porum Pwa
OK1020302		Muskogee CountyNDND1
Poteau Pwa
OK3004015		Le Flore CountyNDND0
Pryor
OK3004611		Mayes CountyNDND0
Purcell
OK2004701		McClain CountyNDND0
Pushmataha Co. RWD #3
OK1010318		Pushmataha CountyNDND0
Ramona Public Works Authority
OK3007408		Washington CountyNDND1
Randlett Pwa
OK3001702		Cotton CountyNDND0
Rogers Co RWD # 3 Cot Sta
OK3006650		Rogers CountyNDND0
Rogers Co RWD # 3 Lake Plant
OK1021513		Rogers CountyNDND0
Rogers Co RWD # 4
OK1021506		Rogers CountyNDND1
Rogers Co RWD # 5
OK1021507		Rogers CountyNDND0
Rogers Co RWD # 8
OK3006606		Rogers CountyNDND1
Sallisaw
OK1020206		Sequoyah CountyNDND0
Sand Springs
OK1020420		Tulsa CountyNDND0
Sapulpa
OK1020404		Creek CountyNDND0
Sapulpa Rural Water Company
OK3001904		Creek CountyNDND0
Sayre
OK2000508		Beckham CountyNDND0
Seminole
OK2006720		Seminole CountyNDND0
Sequoyah Co. Water Association
OK1020210		Sequoyah CountyNDND0
Shawnee Municipal Authority
OK1020504		Pottawatomie CountyNDND2
Skiatook Pwa
OK1021313		Osage CountyNDND1
Southern Okla Water Corp
OK1010830		Carter CountyNDND4
Spencer
OK2005509		Oklahoma CountyNDND0
Stephens Co RWD #5
OK2006969		Stephens CountyNDND0
Stillwater Water Plant
OK1021220		Payne CountyND8.65
Sulphur
OK2005001		Murray CountyNDND0
Tahlequah Pwa
OK1021701		Cherokee CountyNDND3
Tecumseh Utility Authority
OK1020506		Pottawatomie CountyNDND1
Tinker AFB Bio-Env Eng
OK2005508		Oklahoma CountyNDND1
Tri-County RWD #2
OK2006362		Pottawatomie CountyND62
Tulsa
OK1020418		Tulsa CountyNDND0
Tuttle
OK2002608		Grady CountyNDND3
Vinita Utilities Authority
OK1021611		Craig CountyNDND0
Wagoner
OK1021649		Wagoner CountyNDND0
Wagoner Co. RWD #4
OK1021529		Wagoner CountyND29.55
Wagoner Co. RWD #5
OK1021528		Wagoner CountyND346
Wagoner Co. RWD #7 (New)
OK1221626		Wagoner CountyNDND0
Wagoner Co. RWD #9
OK1021527		Wagoner CountyNDND0
Washington Co RWD #3 (New,#1)
OK1021418		Tulsa CountyNDND0
Water Distributors, Inc.
OK3004009		Le Flore CountyNDND1
Watonga
OK2000602		Blaine CountyNDND0
Weatherford
OK2002002		Custer CountyNDND0
Wewoka Public Works Authority
OK1020510		Seminole CountyNDND1
Woodward
OK2007701		Woodward CountyNDND0
Yukon
OK2000910		Canadian CountyNDND0

ND = not detected (below the 4 ppt UCMR 5 reporting level). Values are the highest single sample result, not an annual average.

Source: EPA UCMR 5 final occurrence data (EPA page last updated 2026-08-28; samples collected January 2023 – December 2025) ↗.

PFAS disclaimer: PFAS results are copied from EPA's UCMR 5 dataset and describe samples taken at a public water system's entry points between 2023 and 2025, not water at any specific address. Levels may have changed since sampling (for example, after new treatment). “Not detected” means below EPA's UCMR 5 minimum reporting level, not zero. This is not a compliance determination or a water test. Contact your water utility for current information.