Kansas tap water, by utility.

107 utilities with a full report, serving 2.4 million people as they report it. Regulated PFAS turned up at 17 of them.

Kansas utilities by population served
Utility	Based in	Serves	Regulated PFAS	Health-based violations since 2016
Water District 1 of Johnson Co	Kansas City	490,000	None found	0
City of Wichita	Wichita	395,699	None found	0
Kansas City Board of Public Utilities	Kansas City	152,960	None found	0
City of Olathe	Olathe	143,014	None found	0
City of Topeka	Topeka	125,963	None found	1
City of Lawrence	Lawrence	95,256	PFHxS	0
City of Manhattan	Manhattan	54,763	None found	0
City of Salina	Salina	46,481	PFHxS, PFBS	0
City of Hutchinson	Hutchinson	39,712	None found	1
Leavenworth Water Department	Leavenworth	38,757	None found	0
Frusi Water Treatment Plant	Fort Riley	35,784	PFOA, PFOS, PFHxS, PFBS	3
City of Garden City	Garden City	35,126	None found	0
University of Kansas	Lawrence	35,000	None found	0
City of Dodge City	Dodge City	27,104	PFOS	1
City of Derby	Derby	25,413	None found	0
City of Emporia	Emporia	24,009	None found	6
City of Gardner	Gardner	23,942	None found	0
City of Hays	Hays	21,040	PFBS	0
City of Pittsburg	Pittsburg	20,738	None found	0
City of Liberal	Liberal	19,640	None found	0
City of Junction City	Junction City	19,167	None found	5
City of Newton	Newton	18,433	None found	0
City of Great Bend	Great Bend	14,580	PFOA, PFOS, PFHxS, PFBS	0
City of McPherson	McPherson	13,944	None found	0
Fort Leavenworth American Water Ent LLC	Fort Leavenworth	12,934	None found	0
City of El Dorado	El Dorado	12,810	None found	4
City of Ottawa	Ottawa	12,604	None found	3
Shawnee Co RWD 4c	Topeka	12,000	None found	0
City of Arkansas City	Arkansas City	11,929	PFOS, PFHxS	0
City of Winfield	Winfield	11,726	None found	0
City of Haysville	Haysville	11,315	None found	1
City of Atchison	Atchison	10,694	None found	1
Miami Co RWD 2	Hillsdale	10,311	None found	2
City of Parsons	Parsons	9,479	None found	5
City of Augusta	Augusta	9,267	None found	0
City of Coffeyville	Coffeyville	8,847	PFBS	1
City of Chanute	Chanute	8,642	None found	0
City of Park City	Park City	8,503	PFOS, PFHxS, PFBS	0
City of Independence	Independence	8,464	None found	0
City of Bel Aire	Bel Aire	8,448	None found	0
City of Bonner Springs	Bonner Springs	7,805	None found	0
City of Wellington	Wellington	7,664	None found	1
Pottawatomie Co RWD 1	Wamego	7,535	None found	0
City of Fort Scott	Fort Scott	7,513	None found	0
City of Valley Center	Valley Center	7,419	None found	0
Lan del Water District	Lansing	7,302	None found	0
Bourbon Co RWD 2c	Fort Scott	7,050	None found	0
City of Mulvane	Mulvane	6,587	PFBS	0
City of Pratt	Pratt	6,573	PFOS, PFNA, PFBS	7
City of Abilene	Abilene	6,468	None found	0
Butler Co RWD 5	Benton	6,457	None found	0
Johnson Co RWD 7	Gardner	6,457	None found	0
City of Eudora	Eudora	6,449	None found	0
City of Ulysses	Ulysses	6,410	None found	0
Shawnee Co RWD 8	Tecumseh	6,073	PFHxS	3
City of Maize	Maize	6,060	None found	0
Sedgwick Co RWD 3	Derby	6,045	None found	0
McConnell AFB	Wichita	6,009	None found	0
City of Paola	Paola	5,786	None found	0
City of Tonganoxie	Tonganoxie	5,702	None found	0
City of Colby	Colby	5,516	None found	0
City of Goddard	Goddard	5,372	PFBS	0
City of Iola	Iola	5,343	None found	0
City of Concordia	Concordia	5,032	None found	0
City of Louisburg	Louisburg	4,994	None found	0
City of Baldwin City	Baldwin City	4,882	None found	0
City of Wamego	Wamego	4,860	PFBS	0
Suburban Water Company	Basehor	4,700	None found	0
Douglas Co RWD 3	Berryton	4,663	PFHxS, PFBS	1
City of Desoto	Desoto	4,645	PFBS	3
City of Goodland	Goodland	4,450	None found	0
City of Russell	Russell	4,388	None found	9
Jackson Co RWD 3	Holton	4,376	None found	0
City of Osawatomie	Osawatomie	4,280	None found	16
City of Rose Hill	Rose Hill	4,269	None found	0
Shawnee Co RWD 1c	Auburn	4,160	None found	10
City of Clay Center	Clay Center	4,138	None found	0
Osage Co RWD 5	Overbrook	3,875	Not sampled	5
City of Baxter Springs	Baxter Springs	3,852	None found	9
City of Hugoton	Hugoton	3,764	PFHxS	0
City of Scott City	Scott City	3,748	None found	0
Atchison Co RWD 5c	Lancaster	3,690	None found	0
Jefferson Co RWD 12	Winchester	3,635	None found	0
City of Larned	Larned	3,621	None found	0
City of Lyons	Lyons	3,556	None found	1
City of Lindsborg	Lindsborg	3,496	Not sampled	0
City of Hesston	Hesston	3,495	None found	0
City of Marysville	Marysville	3,417	Not sampled	0
City of Beloit	Beloit	3,407	Not sampled	31
City of Frontenac	Frontenac	3,395	None found	12
City of Holton	Holton	3,329	Not sampled	0
Douglas Co RWD 4	Baldwin City	3,000	None found	0
Crawford Co RWD 5	Pittsburg	2,200	None found	0
City of Council Grove	Council Grove	2,111	None found	1
City of Moundridge	Moundridge	1,958	None found	0
City of Medicine Lodge	Medicine Lodge	1,723	None found	0
Sedgwick Co RWD 2	Valley Center	1,460	None found	0
City of Wathena	Wathena	1,242	None found	0
City of Perry	Perry	858	None found	0
City of Canton	Canton	699	None found	10
City of Maple Hill	Maple Hill	646	None found	0
City of Waverly	Waverly	574	None found	0
City of Gas City	Gas City	501	None found	0
City of Moran	Moran	467	None found	0
City of Sylvan Grove	Sylvan Grove	285	None found	0
City of Munden	Munden	99	None found	0
City of Virgil	Virgil	48	None found	4
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.