Michigan tap water, by utility.

311 utilities with a full report, serving 6.8 million people as they report it. Regulated PFAS turned up at 23 of them.

Michigan utilities by population served
Utility	Based in	Serves	Regulated PFAS	Health-based violations since 2016
City of Detroit	Detroit	633,218	None found	0
Grand Rapids	Grand Rapids	306,901	None found	0
Kalamazoo	Kalamazoo	192,992	PFOA, PFOS, PFHxS, PFBS	4
Lansing Board of Water & Light	Lansing	166,000	None found	0
City of Warren	Warren	134,056	None found	0
City of Sterling Heights	Sterling Heights	127,000	None found	0
Ann Arbor	Ann Arbor	123,851	None found	0
Dearborn	Dearborn	109,976	None found	0
Clinton Township	Clinton Township	100,513	None found	0
Canton Township	Canton	99,627	None found	0
Livonia	Livonia	96,942	None found	0
Macomb Township	Macomb	90,000	None found	0
Troy	Troy	85,854	None found	0
Westland	Wayne	85,420	None found	0
City of Flint	Flint	81,252	None found	1
Rochester Hills	Rochester Hills	74,000	None found	0
Genesee County Water System	Flint	73,726	None found	1
Waterford Township	Waterford	73,441	PFHxS	1
Wyoming	Wyoming	72,125	None found	0
Shelby Township	Shelby Township	72,000	None found	0
Southfield	Southfield	71,739	None found	0
Pontiac	Pontiac	63,776	None found	0
Taylor	Taylor	63,409	None found	1
City of St. Clair Shores	St. Clair Shores	59,715	None found	0
Dearborn Heights	Dearborn Heights	57,774	None found	2
City of Royal Oak	Royal Oak	57,236	None found	0
City of Farmington Hills	Farmington Hills	56,984	None found	0
City of Novi	Novi	56,780	None found	0
Ypsilanti Community Utility Authority	Ypsilanti	53,988	None found	0
Holland Board of Public Works	Holland	49,687	None found	2
Redford Township	Redford	49,504	None found	1
West Bloomfield Township	West Bloomfield	49,479	None found	0
Monroe	Monroe	49,467	None found	1
City of Roseville	Roseville	47,299	None found	0
Portage	Portage	46,292	PFHxS, PFBS	0
City of Saginaw	Saginaw	44,058	None found	0
Battle Creek - Verona System	Battle Creek	43,975	None found	9
City of Midland	Midland	42,547	None found	0
Plainfield Township	Grand Rapids	42,271	PFBS	2
Bloomfield Township	Bloomfield Township	41,691	None found	0
Chesterfield Township	Chesterfield Township	41,650	None found	0
Georgetown Township	Jenison	41,086	None found	0
Saginaw Charter Township	Saginaw	40,840	None found	0
Lincoln Park	Lincoln Park	38,144	None found	0
Byron - Gaines Utility Authority	Byron Center	37,464	None found	0
Muskegon	Muskegon	37,213	None found	0
Kentwood	Kentwood	36,072	None found	0
Monroe South County	Monroe	33,816	None found	0
Brownstown Township	Brownstown Twp	33,194	None found	0
Jackson	Jackson	33,165	None found	1
City of East Lansing	East Lansing	33,000	None found	0
Orion Township	Lake Orion	33,000	None found	0
City of Eastpointe	Eastpointe	32,442	None found	0
City of Bay City	Bay City	32,255	None found	1
Northville Township	Northville	32,103	None found	0
Southgate	Southgate	30,047	None found	0
Madison Heights	Madison Heights	29,694	None found	0
Oak Park	Oak Park	29,654	None found	0
City of Port Huron	Port Huron	28,983	None found	0
Hamtramck	Hamtramck	28,433	None found	2
Allen Park	Allen Park	28,210	None found	0
Garden City	Garden City	27,625	None found	0
Plymouth Township	Plymouth	27,524	None found	0
Van Buren Township	Belleville	27,359	None found	0
Southwest Michigan Regional Sanitary Sew	St. Joseph	26,780	None found	0
Holland Township Consolidated	Holland	26,100	None found	0
Wyandotte	Wyandotte	25,883	None found	0
Meridian Township	Okemos	25,600	None found	0
Summit Township	Jackson	25,355	None found	0
Inkster	Inkster	25,076	None found	0
Pittsfield Township	Ann Arbor	24,500	None found	0
Harrison Township	Harrison Township	24,314	None found	0
Norton Shores	Norton Shores	23,994	None found	0
Romulus	Romulus	23,989	None found	0
Adrian	Adrian	23,663	None found	0
Ferndale	Ferndale	22,105	None found	1
Charter Township of Delta	Lansing	21,856	None found	0
Mount Pleasant	Mount Pleasant	21,688	None found	1
Frenchtown Township	Monroe	21,609	None found	0
Auburn Hills	Auburn Hills	21,412	None found	0
Blackman Township	Jackson	21,222	None found	0
City of Burton	Burton	21,000	None found	1
Charter Township of Grand Blanc	Grand Blanc	21,000	None found	1
Marquette	Marquette	20,629	None found	1
Birmingham	Birmingham	20,472	None found	2
Commerce Township	Commerce Township	19,811	None found	0
Allendale Township	Allendale	19,725	None found	0
Trenton	Trenton	18,544	None found	0
Wayne	Wayne	17,713	None found	0
Mhog Sewer & Water Authority	Brighton	17,046	None found	0
Huron Twp	New Boston	16,944	None found	0
Hazel Park	Hazel Park	16,400	None found	0
City of Owosso	Owosso	16,353	None found	1
City of Mount Clemens	Mount Clemens	16,314	None found	2
Grosse Pointe Woods	Grosse Pointe Woods	16,135	None found	0
Grandville	Grandville	15,948	None found	0
Washington Township	Washington	15,828	None found	0
Grand Haven Township	Grand Haven	15,051	None found	1
Berkley	Berkley	14,970	None found	0
Sault Ste Marie	Sault Ste. Marie	14,689	None found	1
Traverse City	Traverse City	14,532	None found	0
City of Fraser	Fraser	14,297	None found	0
Harper Woods	Harper Woods	14,236	None found	1
Niles	Niles	14,215	None found	0
City of Wixom	Wixom	13,928	None found	0
Coldwater	Coldwater	13,822	None found	0
Woodhaven	Woodhaven	12,941	None found	0
Escanaba	Escanaba	12,941	None found	0
Union Township	MT Pleasant	12,927	PFBS	0
Garfield Charter Township	Traverse City	12,899	None found	0
Melvindale	Melvindale	12,851	None found	1
Michigan State University	East Lansing	12,793	None found	1
City of New Baltimore	New Baltimore	12,720	None found	1
Riverview	Riverview	12,486	None found	0
Bangor Township	Bay City	11,999	None found	0
Thomas Township	Saginaw	11,931	None found	0
Sturgis	Sturgis	11,920	None found	0
Clawson	Clawson	11,825	None found	0
Independence Township	Clarkston	11,790	PFOA, PFOS, PFHxS, PFBS	0
City of Fenton	Fenton	11,746	None found	0
Ionia	Ionia	11,708	None found	0
East Grand Rapids	East Grand Rapids	11,637	None found	0
City of Farmington	Farmington	11,597	None found	0
Grosse Pointe Park	Grosse Pointe Park	11,555	None found	1
City of South Lyon	South Lyon	11,055	HFPO-DA	0
Midland Co., Water Dist. No. 1 of	Sanford	11,000	None found	2
Grosse Ile Township	Grosse Ile	10,788	None found	0
Port Huron Township	Port Huron	10,654	None found	0
Flat Rock	Flat Rock	10,541	None found	2
Beverly Hills	Beverly Hills	10,451	None found	0
Grand Haven	Grand Haven	10,412	PFOA	0
Oxford Township	Waterford	10,407	None found	0
Big Rapids	Big Rapids	10,403	None found	1
City of Cadillac	Cadillac	10,355	None found	0
City of Brighton	Brighton	10,210	None found	0
City of Alpena	Alpena	10,128	None found	0
Bridgeport Township	Bridgeport	10,104	None found	0
City of Marysville	Marysville	9,959	None found	0
Muskegon Heights	Muskegon Heights	9,917	None found	0
City of Howell	Howell	9,914	None found	0
Berlin Township	Newport	9,900	None found	0
Clay Township	Algonac	9,866	None found	0
Grosse Pointe Farms	Grosse Pointe Farms	9,757	None found	0
Hampton Township	Bay City	9,652	None found	0
Sumpter Township	Belleville	9,576	None found	0
Beecher Metropolitan District	Flint	9,400	None found	0
Spring Lake Township	Spring Lake	9,393	PFOA	1
Lyon Township	New Hudson	9,390	None found	0
Fruitport Township	Fruitport	9,355	None found	0
Ecorse	Ecorse	9,305	None found	0
Tittabawassee Township	Freeland	9,227	None found	2
City of Alma	Alma	9,182	None found	0
Saline	Saline	9,158	None found	0
Albion	Albion	9,144	None found	2
South Haven Area Water & Sewer Authority	South Haven	9,133	None found	1
Plymouth	Plymouth	9,132	None found	0
Benton Harbor	Benton Harbor	9,103	None found	17
City of Charlotte	Charlotte	9,074	PFHxS, PFBS	0
City of Lapeer	Lapeer	9,023	None found	2
City of Petoskey	Petoskey	8,979	None found	0
Highland Park	Highland Park	8,977	None found	0
Greenville	Greenville	8,816	PFBS	0
City of Grand Ledge	Grand Ledge	8,701	None found	0
Buena Vista Township	Saginaw	8,676	None found	1
Menominee	Menominee	8,583	None found	0
Village of Holly	Holly	8,557	None found	1
Tecumseh	Tecumseh	8,521	None found	0
Scio Township	Ann Arbor	8,500	None found	0
Genesee Township	Genesee	8,473	None found	0
Bay Co. Dept of Water & Sewer	Bay City	8,465	None found	0
Houghton	Houghton	8,386	None found	0
Zeeland Board of Public Works	Zeeland	8,328	None found	0
City of Flushing	Flushing	8,311	None found	0
City of Grand Blanc	Grand Blanc	8,276	None found	0
City of Center Line	Center Line	8,257	None found	0
City of Mason	Mason	8,252	None found	0
Ludington	Ludington	8,184	None found	0
Hillsdale	Hillsdale	8,163	None found	2
St Joseph	St Joseph	7,930	None found	0
Three Rivers	Three Rivers	7,905	None found	0
City of St. Johns	St. Johns	7,896	None found	0
Hudsonville	Hudsonville	7,708	None found	0
Ada Township	Ada	7,584	None found	1
Iron Mountain	Iron Mountain	7,500	None found	0
Milan	Milan	7,363	None found	0
Hastings	Hastings	7,350	None found	0
East Bay Water Works	Sutton Bay	7,284	None found	0
River Rouge	River Rouge	7,224	None found	1
Rockford	Rockford	7,160	None found	0
Muskegon Co Eastside Water System	Muskgon	7,135	None found	0
Rochester	Rochester	7,130	None found	0
Marshall	Marshall	7,088	None found	0
Oscoda Township	Oscoda	6,997	None found	0
City of St. Louis	St. Louis	6,976	None found	0
Superior Township	Ypsilanti	6,830	None found	1
Benton Charter Township	Benton Harbor	6,768	None found	0
White Lake Township	White Lake	6,619	None found	0
Ira Township	Ira	6,510	None found	0
Ishpeming	Ishpeming	6,470	None found	0
Village of Milford	Milford	6,366	None found	0
Dowagiac	Dowagiac	6,350	None found	0
City of Manistee	Manistee	6,200	None found	0
City of Richmond	Richmond	6,200	None found	0
Huntington Woods	Huntington Woods	6,200	None found	0
Northville	Northville	6,119	None found	0
Ash Township	Carleton	5,959	None found	0
Allegan	Allegan	5,930	None found	1
St. Clair Water and Sewer Authority	East China	5,847	None found	0
Charter Township of Alpena	Alpena	5,839	None found	0
Sims - Whitney Utilities Auth.	Tawas City	5,815	None found	0
City of Swartz Creek	Swartz Creek	5,800	None found	3
Belding	Belding	5,769	None found	0
Carrollton Township	Saginaw	5,705	None found	0
Village of New Haven	New Haven	5,600	None found	1
Upper Michigan Water Company	Calumet	5,535	None found	0
Lansing Township	Lansing	5,500	None found	0
City of Cheboygan	Cheboygan	5,500	None found	0
Kingsford	Kingsford	5,480	PFHxS, PFBS	0
Chelsea	Chelsea	5,474	None found	0
City of St. Clair	St. Clair	5,464	None found	1
Williams Township	Bay City	5,444	None found	0
City of Grosse Pointe	Grosse Pointe	5,421	None found	0
Dundee	Dundee	5,400	PFOA	0
Ironwood	Ironwood	5,387	None found	0
City of Eaton Rapids	Eaton Rapids	5,340	None found	0
Kinross Township	Kincheloe	5,300	PFHxS	0
City of Walled Lake	Walled Lake	5,260	None found	0
Fort Gratiot Township	Fort Gratiot	5,250	None found	0
Monitor Township	Bay City	5,217	None found	0
Kimball Township	Kimball	5,170	None found	0
Musk Co Northside Water System	Muskgon	5,133	None found	0
Rochester East	Rochester	5,100	None found	0
City of Utica	Utica	5,059	PFNA	0
City of Caro	Caro	5,029	None found	0
City of Davison	Davison	5,000	None found	0
Kalamazoo Lake Sewer & Water Authority	Saugatuck	5,000	None found	1
Gibraltar	Gibraltar	4,997	None found	0
City of Frankenmuth	Frankenmuth	4,944	None found	0
Southwest Oakland Township	Waterford	4,943	None found	0
Buchanan	Buchanan	4,871	None found	0
Kochville Township	Saginaw	4,695	None found	0
Marine City	Marine City	4,652	None found	1
Gladstone	Gladstone	4,632	PFOS	0
Caledonia Township	Caledonia	4,573	None found	0
Negaunee	Negaunee	4,568	None found	0
Coopersville	Coopersville	4,519	None found	0
Fremont	Fremont	4,516	PFOA	0
Hancock	Hancock	4,500	None found	0
Dexter	Dexter	4,500	None found	0
Wayland	Wayland	4,435	None found	0
Hannahville Community	Wilson	4,382	None found	0
Lake Charter Township	Bridgman	4,177	None found	0
Roosevelt Park	Roosevelt Park	4,172	None found	0
Livingston Community Water Authority	Brighton	4,152	Not sampled	0
City of Linden	Linden	4,150	None found	0
Lowell	Lowell	4,150	None found	0
Sparta	Sparta	4,140	None found	0
Otsego	Otsego	4,120	PFOA, PFBS	0
City of Algonac	Algonac	4,110	None found	0
Lathrup Village	Lathrup Village	4,075	None found	0
Plainwell	Plainwell	3,998	None found	0
Belleville	Belleville	3,964	None found	1
City of Williamston	Williamston	3,917	None found	0
Pennfield Township	Battle Creek	3,916	None found	0
Augusta Township	Whittaker	3,907	None found	0
Mancelona Area Water and Sewer Authority	Mancelona	3,900	None found	0
Portland	Portland	3,883	None found	0
Worth Township	Lexington	3,854	None found	0
Highland Township	Waterford	3,837	None found	0
Springfield	Springfield	3,833	None found	3
North Muskegon	North Muskegon	3,786	None found	0
Village of Romeo	Romeo	3,750	None found	0
City of Boyne City	Boyne City	3,735	None found	0
East Bay Charter Township	Traverse City	3,720	PFBS	0
City of Gaylord	Gaylord	3,629	PFBS	0
Frankenlust Township	Bay City	3,626	None found	0
Lake Bella Vista	Rockford	3,584	PFBS	0
Bloomfield Hills	Bloomfield Hills	3,579	None found	0
City of Imlay City	Imlay City	3,579	None found	1
Village of Oxford	Oxford	3,540	None found	0
Cedar Springs	Cedar Springs	3,520	None found	1
Madison Township	Adrian	3,480	None found	0
City of Essexville	Essexville	3,478	None found	1
City of Durand	Durand	3,446	None found	0
Paw Paw	Paw Paw	3,362	None found	0
Jamestown Township	Jamestown	3,330	None found	0
Carson City	Carson City	3,322	None found	0
Norway	Norway	3,314	None found	0
Middleville	Middleville	3,309	PFBS	0
Blissfield	Blissfield	3,276	None found	0
City of Mount Morris	Mount Morris	3,086	None found	2
Little River Tribal Water System	Manistee	2,802	None found	0
Ontonagon	Ontonagon	2,607	None found	0
Clyde Township	Clyde	2,400	None found	0
City of East Jordan	East Jordan	2,215	None found	0
Berrien Springs	Berrien Springs	1,910	None found	1
Arlington Woods	Muskegon	1,650	None found	0
Nashville	Nashville	1,628	None found	0
Village of Breckenridge	Breckenridge	1,339	None found	0
Village of Fowler	Fowler	1,136	None found	0
Port Hope - Gore - Rubicon U. A.	Port Hope	1,058	None found	0
Village of North Branch	North Branch	1,021	None found	0
Hesperia	Hesperia	954	PFBS	1
Green Oak Twp - Centennial Farms	Brighton	900	None found	0
Sanilac Township	Port Sanilac	674	None found	0
Nazarene Camp	Vicksburg	648	None found	0
Big Creek/Mentor Utility Authority	Mio	622	None found	0
Buel Hill Estates (Dba Eagles Landing)	Columbia	400	None found	1
Franklin - Quincy Water Authority	Hancock	260	None found	0
Eagle Village, Inc.	Hersey	84	None found	1
Prescott - Hidden Creek Manor	Lansing	38	None found	0
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.