Arsenic violations in Minnesota
23 active public water systems in Minnesota had a Arsenic violation in the past three years, 7 of them in the latest quarter of EPA's data. What Arsenic is and why it matters.
Systems with a Arsenic violation
Latest quarter first, then largest first| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Redby/red Lake County |
2,099 | 8 | 2 | |
|
Dassel-Cokato High School/middle School Wright County |
1,600 | 1 | 0 | |
|
Oak Manor Mobile Home Park Roseau County |
150 | 4 | 2 | |
|
Riverview Llp-Waukon Dairy Mahnomen County |
50 | 1 | 0 | |
|
Nelsons East Shore Landing Crow Wing County |
45 | 1 | 1 | |
|
Lake Mary Villas Douglas County |
37 | 5 | 1 | |
|
River and Woods Mobile Home Park Otter Tail County |
25 | 2 | 1 | |
|
Upper Sioux Community County |
1,900 | 3 | 0 | |
|
Blackduck Beltrami County |
826 | 1 | 0 | |
|
Grand Portage County |
820 | 13 | 3 | |
|
Bug-O-Nay-Ge-Shig School County |
520 | 6 | 0 | |
|
Vermilion County |
450 | 5 | 1 | |
|
Ponemah County |
371 | 9 | 1 | |
|
Lake Lillian Kandiyohi County |
236 | 2 | 0 | |
|
Bug-O-Nay-Ge-Shig School Gym County |
170 | 7 | 0 | |
|
Elizabeth Otter Tail County |
168 | 1 | 0 | |
|
Len Busch Roses Hennepin County |
160 | 1 | 0 | |
|
GC Mankato Hill LLC Blue Earth County |
140 | 5 | 1 | |
|
Starland Hb, Inc. Sibley County |
100 | 1 | 0 | |
|
Kountry Manor Mobile Home Park Becker County |
80 | 1 | 0 | |
|
West Central Research & Outreach Center Stevens County |
40 | 1 | 0 | |
|
Titan Machinery Clay County |
34 | 2 | 0 | |
|
Valmet Dba Stonel Otter Tail County |
25 | 1 | 0 |
About this data
A system is counted once if any of its violations in the past three years involved Arsenic, including monitoring and reporting lapses. Rules violated and status in the table are for the whole system, not Arsenic 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.