Mercury violations in Alaska
7 active public water systems in Alaska 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 |
|---|---|---|---|---|
|
Wasilla Water System Wasilla · Matanuska-Susitna Borough County |
18,492 | 2 | 0 | |
|
Denali Main / Front Country Denali Park · Denali Borough County |
4,122 | 7 | 1 | |
|
Mountain Village Water System Mountain Village · County |
887 | 11 | 2 | |
|
Silver Bay Seafoods False Pass False Pass · Aleutians East Borough County |
470 | 7 | 0 | |
|
Forest Park TC Chugiak · Anchorage Municipality County |
175 | 12 | 3 | |
|
Usfs Kenai Lake Work Center Crown Point · Kenai Peninsula Borough County |
162 | 3 | 0 | |
|
Grace Evangelical Lutheran Kenai · Kenai Peninsula Borough County |
110 | 3 | 0 |
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 Alaska 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.