Cyanide violations in New York
56 active public water systems in New York 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| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Butler Estates (court) Corning (t) · Steuben County |
38 | 3 | 1 | |
|
Kinderhook Lake Mobile Home Park Kinderhook (t) · Columbia County |
38 | 5 | 1 | |
|
North Point Creek Apartments Ltd. Catskill (t) · Greene County |
35 | 6 | 1 | |
|
School Time Montgomery (t) · Orange County |
35 | 5 | 0 | |
|
Hannaford Brothers (livingston) Livingston (t) · Columbia County |
25 | 2 | 0 | |
|
Professional Square Monroe (t) · Orange County |
25 | 6 | 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 New York 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.