Revised Total Coliform Rule (RTCR) violations in Minnesota
233 active public water systems in Minnesota had a Revised Total Coliform Rule (RTCR) violation in the past three years, 38 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 |
|---|---|---|---|---|
|
Waconia Carver County |
13,277 | 2 | 0 | |
|
Gooseberry Falls State Park Lake County |
4,797 | 1 | 0 | |
|
Marshall-Polk Rural Water System Marshall County |
3,295 | 2 | 0 | |
|
Redby/red Lake County |
2,099 | 8 | 2 | |
|
Interstate State Park Chisago County |
2,000 | 1 | 0 | |
|
Baptism River/tettegouche State Park Lake County |
1,473 | 1 | 0 | |
|
Holiday Stationstore No. 409 St. Louis County |
1,300 | 1 | 0 | |
|
Fairfax Renville County |
1,295 | 3 | 0 | |
|
Atwater Kandiyohi County |
1,133 | 2 | 0 | |
|
St. Patrick's Catholic Church Anoka County |
1,100 | 1 | 0 | |
|
Kwik Trip of Cambridge Store No. 1177 Isanti County |
1,050 | 1 | 0 | |
|
Hilltop Anoka County |
880 | 2 | 0 | |
|
Ponemah County |
371 | 9 | 1 | |
|
Bricelyn Faribault County |
359 | 2 | 0 | |
|
Isanti Estates Isanti County |
249 | 2 | 1 | |
|
Pine Aire Resort St. Louis County |
200 | 1 | 0 | |
|
Banning RV Park Pine County |
175 | 1 | 0 | |
|
Oak Manor Mobile Home Park Roseau County |
150 | 4 | 2 | |
|
The Harbors Lake County |
150 | 1 | 0 | |
|
Sunset Resort, Inc. St. Louis County |
140 | 2 | 0 | |
|
Flag Island Resort Lake of the Woods County |
120 | 4 | 1 | |
|
Sunset Lodge Lake of the Woods County |
110 | 5 | 1 | |
|
Grass Lake Mobile Home Park Beltrami County |
80 | 2 | 1 | |
|
Waldheim Resort Pine County |
75 | 1 | 1 | |
|
Pine Meadows Beltrami County |
70 | 4 | 0 | |
|
Wagon Wheel Mobile Home Park Itasca County |
70 | 1 | 0 | |
|
Birch Grove Resort St. Louis County |
40 | 1 | 1 | |
|
Parker Farms Roseau County |
40 | 1 | 0 | |
|
Shady Oaks Mobile Home Park Stearns County |
40 | 3 | 2 | |
|
Loon Lake Lodge Cook County |
36 | 2 | 0 | |
|
Wilderness Bay Lodge Lake County |
35 | 2 | 0 | |
|
St. John's Lutheran Church Faribault County |
30 | 1 | 0 | |
|
North Star Resort St. Louis County |
28 | 3 | 1 | |
|
Garrison's Resort Beltrami County |
25 | 1 | 0 | |
|
Pioneer Park Carlton County |
25 | 4 | 2 | |
|
Red Pine Winery Isanti County |
25 | 1 | 0 | |
|
Trpd-Baker Park, Golf Course Maint. Shop Hennepin County |
25 | 1 | 1 | |
|
The Woodpile Cass County |
25 | 1 | 1 | |
|
Shakopee Scott County |
47,000 | 2 | 0 | |
|
Columbia Heights Anoka County |
22,278 | 3 | 0 | |
|
Worthington Nobles County |
14,052 | 2 | 0 | |
|
Dayton Hennepin County |
4,985 | 2 | 0 | |
|
Dilworth Clay County |
4,918 | 1 | 0 | |
|
Rush City Chisago County |
3,339 | 2 | 0 | |
|
Proctor St. Louis County |
3,099 | 3 | 0 | |
|
Milaca Mille Lacs County |
3,043 | 2 | 0 | |
|
Roseau Roseau County |
2,729 | 2 | 0 | |
|
Flying J #576 Rice County |
2,500 | 1 | 0 | |
|
Ortonville Big Stone County |
2,021 | 1 | 0 | |
|
Osakis Douglas County |
1,780 | 2 | 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 Minnesota 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.