Tapcensus

Selenium violations in Pennsylvania

116 active public water systems in Pennsylvania had a Selenium violation in the past three years. What Selenium is and why it matters.

Health effects: Chronic exposure above the MCL causes selenosis — characterized by hair and nail loss, peripheral neuropathy, fatigue, and gastrointestinal disturbance. Liver damage can occur with prolonged high intake. The margin between nutritional requirement and toxic dose is narrow, making the MCL an important threshold.

Systems with a Selenium violation

Latest quarter first, then largest first
SystemServesStatusRules violated, 3 yrUnresolved
Perry County Generations
Perry County
41 4 0
Countryside Rest
Lancaster County
40 4 1
Fisher & Fisher Law Office Bld
Monroe County
40 5 2
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
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
Indian Trail Spring
Dauphin County
25 6 0
Jack Frost Natl Golf Course
Carbon County
25 5 1
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 Selenium, including monitoring and reporting lapses. Rules violated and status in the table are for the whole system, not Selenium 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.