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 |
|---|---|---|---|---|
|
Oasis Lake Park-West HP Well 2 Arenac County |
25 | 2 | 2 | |
|
Otsego Club River Cabin Otsego County |
25 | 1 | 0 | |
|
Petoskey Snowmobile Club Emmet County |
25 | 2 | 0 | |
|
Big Cox's Trading Post (fka Pigeon Bay) Cheboygan County |
25 | 1 | 0 | |
|
Red Barn Market #19 St. Clair County |
25 | 1 | 0 | |
|
Russo's Pizzeria Allegan County |
25 | 1 | 0 | |
|
Sand Bar & Grill Alpena County |
25 | 1 | 0 | |
|
Sauble Lake Campground Lake County |
25 | 2 | 1 | |
|
Sherry's Port Bar Delta County |
25 | 2 | 0 | |
|
Farmer's Kitchen Kalkaska County |
25 | 1 | 0 | |
|
Side Pockets Billiards Lapeer County |
25 | 1 | 0 | |
|
Skinner Park Roscommon Twp Roscommon County |
25 | 2 | 2 | |
|
Spring Lake Park Emmet County |
25 | 1 | 1 | |
|
St. Mary Magdalene Church Cooks Schoolcraft County |
25 | 1 | 0 | |
|
St. Mary's Catholic Marne (church) Ottawa County |
25 | 1 | 0 | |
|
Stony Creek Market Washtenaw County |
25 | 2 | 0 | |
|
Vernon Cone Company Shiawassee County |
25 | 2 | 0 | |
|
The Glenwood Manistee County |
25 | 1 | 1 | |
|
The Ice House Manistee County |
25 | 1 | 0 | |
|
The Outpost Mackinac County |
25 | 2 | 0 | |
|
Thetford Township Hall Genesee County |
25 | 2 | 0 | |
|
Thirsty's Bar Cheboygan County |
25 | 2 | 0 | |
|
Tnt Bar Presque Isle County |
25 | 2 | 0 | |
|
Coney Cone Kalkaska County |
25 | 2 | 0 | |
|
The Cuterie Bar Cheboygan County |
25 | 1 | 0 | |
|
The Family Tree Shiawassee County |
25 | 1 | 0 | |
|
Usfs Grand Island Juniper Flats Alger County |
25 | 1 | 1 | |
|
Viron International, LLC Shiawassee County |
25 | 3 | 0 | |
|
Washtenaw CO Farm Council Grounds CA Washtenaw County |
25 | 2 | 0 | |
|
Washtenaw CO Farm Council Grounds-Kitc Washtenaw County |
25 | 2 | 0 | |
|
Water's End Cafe Otsego County |
25 | 1 | 0 | |
|
Watertown Twp Complex Clinton County |
25 | 2 | 0 | |
|
Waterways Campground Cheboygan County |
25 | 1 | 1 | |
|
Whispering Pines Condo Assn-Well 002 Barry County |
25 | 1 | 0 | |
|
Whitefish Hill Mobile HM & RV Delta County |
25 | 1 | 1 | |
|
Wild John's Party Store Sanilac County |
25 | 1 | 0 | |
|
Williamston Roadhouse Ingham County |
25 | 1 | 0 | |
|
Wilson Auto/party Store Montcalm County |
25 | 3 | 0 | |
|
Wolf Lake Ranch Lake County |
25 | 2 | 1 | |
|
Yoopar Scoops Boardwalk Estates Schoolcraft County |
25 | 2 | 0 | |
|
Zip's Market Genesee County |
25 | 3 | 0 | |
|
Bear Lake Schools Field House Manistee County |
25 | 1 | 1 | |
|
Grandma's House Ronora Lodge Berrien County |
25 | 1 | 0 | |
|
Kerby's Ice Cream Shiawassee County |
25 | 1 | 0 | |
|
Russells M-40 Speedway LLC Cass County |
25 | 2 | 1 | |
|
Walkerville Kwik Mart Oceana County |
25 | 1 | 0 | |
|
Wilmot Township Park-Handpump Cheboygan County |
25 | 1 | 1 | |
|
East Lansing, City of East Lansing · Ingham County |
33,000 | 2 | 0 | |
|
Michigan State University Ingham County |
12,793 | 3 | 0 | |
|
Mt. Pleasant County |
10,198 | 3 | 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.