All water systems in Michigan
11,156 systems
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
White Lake Township Oakland County |
6,619 | 3 | 0 | |
|
Ira Township St. Clair County |
6,510 | 0 | 0 | |
|
Ishpeming Ishpeming · Marquette County |
6,470 | 0 | 0 | |
|
The Groves of Michigan Lenawee County |
6,460 | 0 | 0 | |
|
Milford, Village of Milford · Oakland County |
6,366 | 1 | 0 | |
|
Dowagiac Dowagiac · Cass County |
6,350 | 2 | 0 | |
|
Huntington Woods Huntington Woods · Oakland County |
6,200 | 0 | 0 | |
|
Manistee, City of Manistee · Manistee County |
6,200 | 0 | 0 | |
|
Richmond, City of Richmond · Macomb County |
6,200 | 1 | 0 | |
|
Northville Northville · Wayne County |
6,119 | 2 | 1 | |
|
Detroit Metropolitan Wayne Co. Airport Wayne County |
6,000 | 0 | 0 | |
|
Ash Township Carleton · Monroe County |
5,959 | 0 | 0 | |
|
Allegan Allegan · Allegan County |
5,930 | 1 | 0 | |
|
St. Clair Water and Sewer Authority St. Clair County |
5,847 | 0 | 0 | |
|
Charter Township of Alpena Alpena County |
5,839 | 0 | 0 | |
|
Sims-Whitney Utilities Auth. Arenac County |
5,815 | 0 | 0 | |
|
Swartz Creek, City of Swartz Creek · Genesee County |
5,800 | 1 | 0 | |
|
Belding Belding · Ionia County |
5,769 | 3 | 0 | |
|
Carrollton Township Saginaw County |
5,705 | 0 | 0 | |
|
New Haven, Village of New Haven · Macomb County |
5,600 | 2 | 0 | |
|
Upper Michigan Water Company Houghton County |
5,535 | 0 | 0 | |
|
Cheboygan, City of Cheboygan · Cheboygan County |
5,500 | 2 | 0 | |
|
Lansing Township Ingham County |
5,500 | 0 | 0 | |
|
Kingsford Kingsford · Dickinson County |
5,480 | 1 | 0 | |
|
Chelsea Chelsea · Washtenaw County |
5,474 | 0 | 0 | |
|
St. Clair, City of St. Clair County |
5,464 | 2 | 0 | |
|
Williams Township Bay County |
5,444 | 0 | 0 | |
|
Grosse Pointe, City of Grosse Pointe · Wayne County |
5,421 | 0 | 0 | |
|
Dundee Dundee · Monroe County |
5,400 | 0 | 0 | |
|
Ironwood Ironwood · Gogebic County |
5,387 | 0 | 0 | |
|
Saganing County |
5,350 | 2 | 0 | |
|
Eaton Rapids, City of Eaton Rapids · Eaton County |
5,340 | 3 | 1 | |
|
Kinross Township Chippewa County |
5,300 | 0 | 0 | |
|
Walled Lake, City of Walled Lake · Oakland County |
5,260 | 1 | 0 | |
|
Monitor Township Bay County |
5,217 | 0 | 0 | |
|
Kimball Township St. Clair County |
5,170 | 5 | 1 | |
|
Musk CO Northside Water System Muskegon County |
5,133 | 0 | 0 | |
|
Rochester East Rochester · Oakland County |
5,100 | 0 | 0 | |
|
Utica, City of Utica · Macomb County |
5,059 | 1 | 0 | |
|
Caro, City of Tuscola County |
5,029 | 1 | 0 | |
|
Dnr-South Higgins Lake SP CG Roscommon County |
5,024 | 0 | 0 | |
|
Davison, City of Davison · Genesee County |
5,000 | 0 | 0 | |
|
Kalamazoo Lake Sewer & Water Authority Allegan County |
5,000 | 2 | 0 | |
|
Walmart Supercenter #2014 Houghton LK Roscommon County |
5,000 | 1 | 1 | |
|
Gibraltar Gibraltar · Wayne County |
4,997 | 1 | 0 | |
|
Frankenmuth, City of Frankenmuth · Saginaw County |
4,944 | 0 | 0 | |
|
Southwest Oakland Township Oakland County |
4,943 | 0 | 0 | |
|
Buchanan Buchanan · Berrien County |
4,871 | 0 | 0 | |
|
Kochville Township Saginaw County |
4,695 | 1 | 0 | |
|
Marine City Marine City · St. Clair County |
4,652 | 2 | 1 |
About this data
Rules violated counts the rules a system was in violation of in the past three years, including monitoring and reporting lapses; one rule can carry several violations. Unresolved is the number of those rules still in violation at EPA's latest data refresh.
Source: the U.S. EPA's Enforcement and Compliance History Online system (ECHO), which publishes the federal Safe Drinking Water Information System. EPA's terms and values are shown as published. The Michigan records are from EPA's data refresh of Oct 7, 2026; EPA refreshes this data quarterly, and states report to EPA with a lag of three to six months, so the newest violations may not appear yet. Retrieved from ECHO on Oct 11, 2026.