Tapcensus

Cyanide violations in Maine

8 active public water systems in Maine had a Cyanide violation in the past three years. What Cyanide is and why it matters.

Health effects: Acute high-dose cyanide exposure interferes with cellular oxygen use and can cause rapid deterioration of the central nervous system, including headache, dizziness, and in severe cases, loss of consciousness. Chronic exposure at lower levels is associated with thyroid dysfunction and nerve damage. Most drinking water violations pose chronic rather than acute risk.

Systems with a Cyanide violation

Latest quarter first, then largest first
SystemServesStatusRules violated, 3 yrUnresolved
Msad 61 Songo Locks Elementary School
Naples · Cumberland County 		478 2 0
Rsu 38 MT Vernon Elementary School
Mount Vernon · Kennebec County 		117 2 1
Grandeur Mobile Home Estates
Carmel · Penobscot County 		100 7 2
Pine Village MHP
Presque Isle · Aroostook County 		80 1 0
Aos 77 Alexander Elementary School
Alexander · Washington County 		59 3 0
Elliott Apartments
Owls Head · Knox County 		55 4 2
Vigneaults Mobile Home Park
Alton · Penobscot County 		53 6 2
Rsu 03 Unity Elementary School
Unity · Waldo County 		45 2 1
About this data

A system is counted once if any of its violations in the past three years involved Cyanide, including monitoring and reporting lapses. Rules violated and status in the table are for the whole system, not Cyanide 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. Retrieved from ECHO on Oct 11, 2026.