Tapcensus

Cyanide violations in Pennsylvania

138 active public water systems in Pennsylvania 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
HY Vue Acres MHP
Butler County
62 10 1
Salem Heights Estate
Wayne County
62 13 4
Woodland MHP
Berks County
61 2 0
Denny Ridge Mobile Home Park
Crawford County
60 8 0
Elderberry MHP
Crawford County
60 8 0
Sunset Ridge Rehab Ctr
Columbia County
60 6 1
Trinity Episcopal Church
Bucks County
58 3 0
Cupec Mobile Estates
Butler County
56 2 0
Pediatric Specialty Care
Bucks County
56 6 0
Ridgecrest
Monroe County
55 7 1
Colonial Glenn Estates
Beaver County
50 8 0
Country Glen Townhomes
Monroe County
50 10 3
Pleasant Hall Manor
Franklin County
50 6 1
Seeds to Saplings
Pike County
50 7 0
Sky View Terrace
Beaver County
50 7 0
Estates at Stone Row
Monroe County
48 11 3
Hillandale Gettysburg Site 2
Adams County
45 3 0
Cornerstone Living
Lehigh County
44 7 0
Lakeview Mobilehome Park
Butler County
44 6 0
Perry County Generations
Perry County
41 4 0
Sgl Carbon Group LLC
Berks County
41 2 0
Countryside Rest
Lancaster County
40 4 1
Fisher & Fisher Law Office Bld
Monroe County
40 5 2
Forest Hills Pch
Cambria County
40 8 0
Pine Garden Apartments
Westmoreland County
40 9 2
Eagle Ridge Personal Care Home
Clinton County
37 10 1
Ontelaunee Farms
Berks County
37 4 0
Craley MHP
York County
35 6 1
Congregation Ohr Menachem
Monroe County
30 9 2
Robinsons Mobile Home Park
Butler County
30 10 0
Happy Hearts Senior Living
Butler County
29 4 0
Far Away Auburn
Schuylkill County
25 10 3
High Spring Water
Lancaster County
25 3 0
Jack Frost Natl Golf Course
Carbon County
25 5 1
Silver Springs Ranch LLC
Wyoming County
25 2 0
Tower Springs LLC
Schuylkill County
25 9 1
Whipperwill MHP
Luzerne County
25 8 0
Hellers Mobile Home Park
Columbia County
21 9 2
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 Pennsylvania 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.