Chlorine (MRDL) violations in Minnesota
72 active public water systems in Minnesota had a Chlorine (MRDL) violation in the past three years, 6 of them in the latest quarter of EPA's data. What Chlorine (MRDL) is and why it matters.
Systems with a Chlorine (MRDL) violation
Latest quarter first, then largest first| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Steen Rock County |
180 | 3 | 0 | |
|
Cuyuna Crow Wing County |
175 | 2 | 0 | |
|
GC Mankato Hill LLC Blue Earth County |
140 | 5 | 1 | |
|
Alpha Jackson County |
112 | 2 | 1 | |
|
Bena County |
112 | 3 | 0 | |
|
Plantation County |
105 | 3 | 0 | |
|
Borup Norman County |
99 | 4 | 2 | |
|
Comstock Clay County |
95 | 4 | 0 | |
|
Evan Brown County |
86 | 2 | 0 | |
|
Ponsford/pine Point County |
85 | 2 | 0 | |
|
Seaforth Redwood County |
80 | 2 | 0 | |
|
Chosen Valley Mobile Home Park Olmsted County |
73 | 2 | 0 | |
|
Dundee Nobles County |
68 | 2 | 0 | |
|
Tintah Traverse County |
68 | 3 | 1 | |
|
Majestic Greens LLC Senior Living (apt.) Anoka County |
67 | 2 | 0 | |
|
Rice Lake County |
65 | 3 | 0 | |
|
Indian Point County |
61 | 4 | 0 | |
|
Delft Cottonwood County |
58 | 2 | 0 | |
|
Elbow Lake County |
50 | 5 | 2 | |
|
Oak Point County |
45 | 3 | 0 | |
|
MP Technologies Wright County |
40 | 2 | 0 | |
|
Old Agency County |
30 | 3 | 0 |
About this data
A system is counted once if any of its violations in the past three years involved Chlorine (MRDL), including monitoring and reporting lapses. Rules violated and status in the table are for the whole system, not Chlorine (MRDL) 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.