Oklahoma tap water, by utility.

167 utilities with a full report, serving 3 million people as they report it. Regulated PFAS turned up at 23 of them.

Oklahoma utilities by population served
Utility	Based in	Serves	Regulated PFAS	Health-based violations since 2016
Oklahoma City	Oklahoma City	644,000	None found	0
Tulsa	Tulsa	413,000	None found	0
Broken Arrow Municipal Authority	Broken Arrow	116,330	PFOS, PFHxS, PFBS	0
Norman Utilities Authority	Norman	104,868	PFBS	1
Lawton	Lawton	92,757	None found	0
Edmond Pwa	Edmond	79,408	PFOS, PFHxS, PFBS	0
Midwest City	Midwest City	55,935	None found	0
Moore Public Works Authority	Moore	55,083	None found	7
Stillwater Utilities Authority	Stillwater	53,000	PFOS, PFHxS, PFBS	16
Enid	Enid	49,347	None found	1
Muskogee Municipal Authority	Muskogee	38,310	None found	26
Bartlesville	Bartlesville	34,748	None found	1
Oklahoma University	Norman	34,000	None found	0
Shawnee Municipal Authority	Shawnee	29,990	None found	6
Sand Springs	Sand Springs	28,774	None found	0
Ponca City Mun Water	Ponca City	27,155	PFOS, PFHxS, PFBS	0
Wagoner Co. RWD #4	Broken Arrow	25,792	PFOS, PFHxS, PFBS	41
Washington Co RWD #3 (New,#1)	Collinsville	25,375	None found	0
Ardmore	Ardmore	24,893	None found	8
Tinker Air Force Base	Oklahoma City	24,645	PFHxS	0
Duncan Public Utilities Authority	Duncan	23,000	None found	44
Owasso	Owasso	23,000	None found	1
Fort Sill Hqusafacfs	Fort Still	23,000	None found	0
Ada	Ada	22,600	None found	1
Yukon	Yukon	22,498	None found	0
Del City	Del City	22,128	None found	1
Bethany	Bethany	20,307	PFOA, PFOS, PFHxS, PFBS	1
Sapulpa	Sapulpa	19,702	None found	10
Bixby Public Works Authority		18,750	None found	1
Altus	Altus	18,717	PFHxS	26
City of Mustang	Mustang	18,576	None found	2
McAlester Pwa	McAlester	18,206	None found	46
Marshall County Rural Water District #2		17,587	None found	38
Jenks Pwa	Jenks	16,924	None found	0
El Reno	El Reno	16,212	None found	11
Chickasha Municipal Authority	Chickasha	16,036	None found	27
Claremore	Claremore	15,873	None found	27
Durant Utilities Authority	Durant	15,545	None found	2
Woodward	Woodward	15,000	None found	1
Tahlequah Pwa	Tahlequah	14,458	PFBS	10
Miami	Miami	13,704	None found	0
Okmulgee Pwa	Okmulgee	13,495	None found	99
Sequoyah Co. RWD #8	Sallisaw	13,460	None found	3
Osu Water Plant		13,000	None found	13
Creek Co RWD # 2	Jenks	12,788	None found	5
Glenpool Water	Glenpool	12,500	None found	0
Rogers Co RWD # 5	Claremore	11,782	None found	0
Guymon	Guymon	11,442	None found	1
Southern Okla Water Corp	Ardmore	11,250	None found	83
Weatherford	Weatherford	10,833	None found	0
Rogers Co RWD # 3 Cot Sta	Claremore	10,750	None found	2
Elk City	Elk City	10,510	None found	0
Rogers Co RWD # 3 Lake Plant	Claremore	10,470	None found	21
Guthrie	Guthrie	9,925	PFBS	3
Coweta Pwa	Coweta	9,450	PFHxS	41
Leflore Co. RWD #14	Spiro	9,077	None found	22
Logan Co RWD #1	Guthrie	8,907	PFOA, PFBS	1
Clinton	Clinton	8,883	None found	5
Pryor	Pryor	8,784	None found	0
Sallisaw	Sallisaw	8,510	None found	4
Jefferson Co Cons RWD #1	Hastings	8,398	None found	16
Cushing	Cushing	8,371	None found	1
Okmulgee Co. RWD #6 (Hectorville)	Mounds	8,370	None found	73
Bryan County Rural Water District #5		8,325	None found	17
Skiatook Pwa	Skiatook	8,110	None found	1
Wagoner	Wagoner	7,982	None found	1
Poteau Pwa	Poteau	7,939	None found	40
Newcastle	Newcastle	7,900	None found	0
Rogers Co RWD # 4	Oologah	7,725	None found	2
Blackwell Municipal Authority	Blackwell	7,668	None found	25
Piedmont Municipal Authority	Piedmont	7,542	None found	8
Grove Municipal Services Auth.	Grove	7,311	None found	4
Falls Creek Baptist Conference Center	Oklahoma City	7,000	None found	0
Idabel Pwa	Idabel	6,952	None found	73
Seminole	Seminole	6,899	None found	0
Anadarko Public Works Authority	Anadarko	6,804	None found	50
Purcell	Purcell	6,693	None found	0
Osage Co RWD #15	Skiatook	6,647	None found	1
Vinita Utilities Authority	Vinita	6,472	None found	5
Stephens Co RWD #5	Marlow	6,426	None found	1
Mayes Co RWD # 2	Chouteau	6,280	PFOS	1
Bryan Co. RWS & Swmd #2	Mead	6,270	None found	35
Pauls Valley	Pauls Valley	6,256	None found	6
Tecumseh Utility Authority	Tecumseh	6,098	None found	36
Henryetta Municipal Authority	Henryetta	6,096	None found	2
Sapulpa Rural Water Company	Sapulpa	5,810	None found	2
Noble Utilities Authority	Noble	5,750	PFHxS	1
McCurtain Co. RWD #8 (MT. Fork Water)	Broken Bow	5,685	None found	14
Creek Co RWD # 1	Kellyville	5,675	None found	4
Hugo Municipal Authority	Hugo	5,536	None found	68
Deer Creek Rural Water Corp	Edmond	5,500	None found	0
Longtown Rw&Sd #1 (Pittsburg Co.)	Eufaula	5,444	None found	23
Collinsville	Collinsville	5,400	None found	9
Perry Water & Light Dept	Perry	5,230	None found	16
Alva	Alva	5,208	None found	1
Tri - County RWD #2	Earlsboro	5,172	PFOS, PFHxS	1
Kingfisher	Kingfisher	5,073	None found	31
Porum Pwa	Porum	5,000	None found	2
Sulphur	Sulphur	4,929	None found	0
Pontotoc Co RWD # 7	Ada	4,863	None found	0
Lone Grove	Lone Grove	4,863	None found	1
Pushmataha Co. RWD #3	Antlers	4,825	None found	93
Murray Co RWD # 1	Sulphur	4,800	None found	1
Holdenville	Holdenville	4,732	None found	69
Leflore Co. RWD #2	Pocola	4,700	None found	41
Fort Gibson	Fort Gibson	4,700	None found	2
Altus AFB	Altus	4,617	None found	19
Marlow Municipal Authority	Marlow	4,600	None found	1
Tuttle		4,500	PFBS	1
Sayre	Sayre	4,375	None found	0
Wagoner Co. RWD #9	Wagoner	4,363	None found	32
Broken Bow Pwa	Broken Bow	4,320	None found	15
Wagoner Co. RWD #5	Coweta	4,251	PFOS, PFHxS, PFBS	0
Craig Co RWD #2	Vinita	4,250	None found	4
Pontotoc Co RWD # 8	Ada	4,250	None found	0
Adamson RWD #8	Hartshorne	4,221	None found	39
Harrah	Harrah	4,190	None found	6
Mayes Co RWD #4	Pryor	4,183	None found	1
Muskogee Co. RWD #5	Muskogee	4,135	None found	106
Ketchum Pwa	Ketchum	4,025	None found	0
Nichols Hills	Nichols Hills	4,020	None found	3
Okla Ordnance Works Authority	Pryor	4,000	PFOS	1
Nowata Municipal Authority	Nowata	3,971	PFOS, PFHxS	36
Frederick	Frederick	3,940	PFHxS	16
Mannford	Mannford	3,935	None found	1
Grady Co RWD #6	Amber	3,930	None found	1
Choctaw UA		3,926	None found	0
Caddo Co RWD #3	Carnegie	3,900	None found	1
Leflore Co. RWD #18	Wister	3,870	None found	17
McCurtain Co. RWD #1	Haworth	3,842	None found	30
Pawhuska	Pawhuska	3,800	None found	21
Mayes Co RWD # 6	Big Cabin	3,750	None found	0
Hobart	Hobart	3,746	None found	0
Spencer	Spencer	3,746	None found	1
Bristow Municipal Authority	Bristow	3,700	None found	1
McIntosh Co. RWD #8 (Texanna)	Eufaula	3,574	None found	40
Consolidated RWD #3 Creek Co	Sapulpa	3,500	None found	1
Dewey Public Works Authority	Dewey	3,490	None found	4
Checotah Pwa	Checotah	3,481	None found	16
Wewoka Public Works Authority	Wewoka	3,450	None found	135
Madill	Madill	3,410	None found	52
Cherokee Co. RWD #11	Hulbert	3,395	PFBS	0
Rogers Co RWD # 8	Claremore	3,375	None found	0
Mayes Co RWD # 5	Adair	3,360	None found	1
Elgin Pwa	Elgin	3,300	Not sampled	1
Heavener Utility Auth - Psg	Heavener	3,000	None found	24
Watonga	Watonga	2,816	None found	8
Eufaula Pwa	Eufaula	2,766	None found	72
Muskogee Co. RWD #1 (Oktaha)	Oktaha	2,280	None found	56
McCurtain Co. RWD #7	Garvin	1,847	None found	19
Okfuskee Co. RWD #3	Okemah	1,823	None found	9
Okla Christian University	Edmond	1,800	None found	1
Garvin Co RWD #4	Pauls Valley	1,340	None found	3
Pittsburg Co. RWD #16	McAlester	1,268	None found	13
Wagoner Co. RWD #7 (New)	Okay	1,110	None found	22
Hydro Pwa	Hydro	1,060	None found	3
McCurtain Co. RWD #9	Valliant	999	None found	17
Eastern Shawnee	Wyandotte	796	None found	0
Pittsburg Co. RWD #11 (Kiowa)	McAlester	790	None found	11
Kay Co RWD #5 (Dale Water Corp)	Newkirk	765	PFOS, PFHxS, PFBS	23
Ottawa Co RWD # 4	Fairland	652	None found	0
Alfalfa Co RWS & Swmd #1 North	Byron	600	None found	0
Ramona Public Works Authority	Ramona	564	None found	3
Delaware Co RWD # 7	Afton	400	None found	12
Randlett Pwa	Randlett	320	None found	11
Hallett Public Works Authority	Hallett	168	None found	1
Dewey Co RWD #2	Camargo	150	None found	1
Utilities EPA sampled under UCMR 5, plus any other community system serving 3,300 people or more. Smaller systems appear in ZIP code results. Data: EPA SDWIS 2026 Q2 and UCMR 5.