Revised Total Coliform Rule (RTCR) violations in Michigan
3,299 active public water systems in Michigan had a Revised Total Coliform Rule (RTCR) violation in the past three years, 847 of them in the latest quarter of EPA's data. What Revised Total Coliform Rule (RTCR) is and why it matters.
Systems with a Revised Total Coliform Rule (RTCR) violation
Latest quarter first, then largest first| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Stockbridge, Village of Stockbridge · Ingham County |
1,252 | 3 | 0 | |
|
Dnr-Silver Lake Sp-Orv Bldg Oceana County |
1,200 | 1 | 0 | |
|
Dnr-Aloha State Park Cheboygan County |
1,200 | 1 | 0 | |
|
Speedway #8704 Alma Gratiot County |
1,090 | 1 | 1 | |
|
Reading Reading · Hillsdale County |
1,078 | 3 | 0 | |
|
Michigan Christian Youth Camp-Dorms4,5,6 Lapeer County |
1,000 | 1 | 0 | |
|
Michigan Christian Youth Camp-Lodge Lapeer County |
1,000 | 1 | 0 | |
|
Baroda Berrien County |
910 | 2 | 1 | |
|
Thousand Trails Campground St. Clair County |
904 | 1 | 0 | |
|
Cannonsburg Ski Area Main Lodge Kent County |
900 | 1 | 0 | |
|
Next Door Store #5052 Ottawa County |
900 | 2 | 1 | |
|
PS Food Mart #3011 Lenawee County |
900 | 1 | 0 | |
|
Quality Dairy Company Eaton County |
895 | 2 | 0 | |
|
Admiral #5862 Ottawa County |
825 | 1 | 0 | |
|
Wishing Well EZ Mart #899 Oceana County |
807 | 1 | 0 | |
|
Lighthouse Village (wells 4 & 5) Calhoun County |
775 | 2 | 1 | |
|
Mackinaw Mill Creek Well 24-25 Cheboygan County |
742 | 1 | 0 | |
|
Mackinaw Mill Creek Well 27-29 Cheboygan County |
742 | 1 | 0 | |
|
Mackinaw Mill Creek Well-23 Cheboygan County |
742 | 1 | 1 | |
|
Mackinaw Mill Creek Well-32 Cheboygan County |
742 | 1 | 0 | |
|
Mackinaw Mill Creek Well-5 Cheboygan County |
742 | 1 | 0 | |
|
Ber WA GA NA Campground Tuscola County |
736 | 1 | 0 | |
|
Winding Creek Camp 2 Barry County |
728 | 2 | 0 | |
|
Winding Creek Camp Dining Hall Barry County |
728 | 2 | 0 | |
|
Winding Creek Camp Poolhouse Barry County |
728 | 2 | 0 | |
|
Mdot Ludington Rest Area Mason County |
701 | 1 | 0 | |
|
Inland Lakes School Cheboygan County |
694 | 2 | 1 | |
|
White's Canoe Livery Arenac County |
660 | 1 | 0 | |
|
White's Canoe Livery Well Arenac County |
660 | 1 | 0 | |
|
Twin Bears Campground 2 Cheboygan County |
656 | 1 | 0 | |
|
Dnr-J.w. Wells SP Campgrnd/picnic/hq Menominee County |
600 | 1 | 0 | |
|
Hanover-Horton Complex Jackson County |
600 | 1 | 0 | |
|
Hopkins High School Allegan County |
600 | 1 | 0 | |
|
Spagnuolo's Party Store Clinton County |
600 | 4 | 1 | |
|
Manistique Casino County |
570 | 2 | 0 | |
|
Allendale KOA Ottawa County |
560 | 4 | 2 | |
|
Lake Michigan Beach Prop Owner Assoc Berrien County |
558 | 2 | 0 | |
|
Cannabis Club Berrien County |
520 | 1 | 0 | |
|
River Country Campground (main) Osceola County |
520 | 2 | 1 | |
|
Aurelius Township Ingham County |
500 | 1 | 0 | |
|
Camp Agq (al-Gon-Quian) 2 Cheboygan County |
500 | 1 | 1 | |
|
Camp Agq (al-Gon-Quian) 3 Cheboygan County |
500 | 1 | 1 | |
|
Camp Walden 1 Cheboygan County |
500 | 1 | 1 | |
|
Camp Walden 2 Cheboygan County |
500 | 1 | 1 | |
|
Clark Fuel Station Multani Inc. Clinton County |
500 | 3 | 0 | |
|
Dnr-Hoeft State Park Presque Isle County |
500 | 1 | 1 | |
|
Express Stop #4691 Allegan County |
500 | 1 | 0 | |
|
Forest Akers Golf Course East Ingham County |
500 | 1 | 1 | |
|
General Squier Park Lapeer County |
500 | 1 | 0 | |
|
Hanover-Horton Elementary Jackson County |
500 | 1 | 0 |
About this data
A system is counted once if any of its violations in the past three years involved Revised Total Coliform Rule (RTCR), including monitoring and reporting lapses. Rules violated and status in the table are for the whole system, not Revised Total Coliform Rule (RTCR) alone.
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.