Diquat violations in Maine
58 active public water systems in Maine had a Diquat violation in the past three years. What Diquat is and why it matters.
Health effects: Chronic exposure to diquat is associated with cataracts and kidney damage in animal studies. Acute high-level exposure causes gastrointestinal distress. EPA has not classified diquat as a human carcinogen. Individuals with kidney conditions may be at elevated risk from chronic exposure.
Systems with a Diquat violation
Latest quarter first, then largest first| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Vigneaults Mobile Home Park Alton · Penobscot County |
53 | 6 | 2 | |
|
Starks Water District Starks · Somerset County |
45 | 5 | 0 | |
|
Little Farm School Limerick · York County |
40 | 2 | 0 | |
|
Msad 52 Alternative/admin School Turner · Androscoggin County |
40 | 1 | 0 | |
|
Crest View Manor Houlton · Aroostook County |
38 | 6 | 2 | |
|
South Penobscot Water Association Penobscot · Hancock County |
38 | 3 | 0 | |
|
Brocks Mobile Home Park Vassalboro · Kennebec County |
30 | 3 | 0 | |
|
ST Agatha Housing St Agatha · Aroostook County |
30 | 6 | 3 |
About this data
A system is counted once if any of its violations in the past three years involved Diquat, including monitoring and reporting lapses. Rules violated and status in the table are for the whole system, not Diquat 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 Maine 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.