Mercury violations in Maine
14 active public water systems in Maine had a Mercury violation in the past three years. What Mercury is and why it matters.
Health effects: Chronic exposure to inorganic mercury in water primarily damages the kidneys. Neurological effects — tremors, memory loss, cognitive impairment — are more associated with organic mercury (methylmercury) than with the inorganic form regulated in drinking water. Developing fetuses and young children are most vulnerable.
Systems with a Mercury violation
Latest quarter first, then largest first| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Sugarloaf Water Association Carrabassett Vl · Franklin County |
1,730 | 4 | 0 | |
|
Mars Hill and Blaine Water Company Mars Hill · Aroostook County |
1,500 | 6 | 0 | |
|
Shady Oaks Mobile Home Park Arundel · York County |
185 | 4 | 0 | |
|
Sunday River-Lower System Bethel · Oxford County |
162 | 3 | 0 | |
|
Grandeur Mobile Home Estates Carmel · Penobscot County |
100 | 7 | 2 | |
|
Timberline Village Fairfield · Somerset County |
95 | 4 | 1 | |
|
US Border Patrol Station-Hodgdon Hodgdon · Aroostook County |
80 | 6 | 0 | |
|
Burnt Mill Settlement Wells · York County |
73 | 6 | 1 | |
|
Sweet Pea Childcare Eliot · York County |
70 | 5 | 0 | |
|
Vigneaults Mobile Home Park Alton · Penobscot County |
53 | 6 | 2 | |
|
Sues Place Daycare Arundel · York County |
44 | 2 | 0 | |
|
Rhymes and Reasons Early Learning Center Greene · Androscoggin County |
42 | 5 | 0 | |
|
US Nps Acadia Natl Pk-Schoodic Facility Winter Harbor · Hancock County |
35 | 7 | 1 | |
|
Lynns Way Skowhegan · Somerset County |
33 | 3 | 1 |
About this data
A system is counted once if any of its violations in the past three years involved Mercury, including monitoring and reporting lapses. Rules violated and status in the table are for the whole system, not Mercury 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.