All water systems in Pennsylvania
7,658 systems
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
State Correctional Inst Cumberland County |
2,522 | 4 | 0 | |
|
Scma-Tremont Schuylkill County |
2,515 | 1 | 1 | |
|
Biglerville Water CO Adams County |
2,501 | 1 | 0 | |
|
Cresson Twp Muni Auth Cambria County |
2,500 | 1 | 0 | |
|
Greenfield Twp Muni Auth Blair County |
2,500 | 2 | 0 | |
|
Lehigh Carbon Community Colleg Lehigh County |
2,500 | 1 | 0 | |
|
MT Hope Est & Winery Lancaster County |
2,500 | 2 | 1 | |
|
Plum Creek Municipal Auth Schuylkill County |
2,500 | 0 | 0 | |
|
Pmsd Clear Run Campus Monroe County |
2,500 | 2 | 1 | |
|
Red Hill Water Authority Montgomery County |
2,500 | 1 | 0 | |
|
Ski Roundtop INC York County |
2,500 | 2 | 0 | |
|
Jefferson Hospital Allegheny County |
2,470 | 0 | 0 | |
|
Berlin Boro Muni Auth Somerset County |
2,468 | 2 | 0 | |
|
Aqua PA Midway Luzerne County |
2,450 | 1 | 0 | |
|
Pawc Pine Ridge System Pike County |
2,450 | 0 | 0 | |
|
West Cocalico Twp Water Auth Lancaster County |
2,430 | 1 | 0 | |
|
Milford Water Authority Pike County |
2,420 | 3 | 0 | |
|
Sandycreek Twp Waterworks Venango County |
2,417 | 2 | 0 | |
|
Johnsonburg Municipal Auth Elk County |
2,413 | 6 | 1 | |
|
Aqua PA Monroe Twp Snyder County |
2,400 | 2 | 0 | |
|
Lehigh Career & Technical Inst Lehigh County |
2,400 | 1 | 0 | |
|
Misericordia University Luzerne County |
2,400 | 7 | 2 | |
|
Smethport Borough McKean County |
2,400 | 5 | 0 | |
|
Williamstown Boro Auth Dauphin County |
2,390 | 3 | 1 | |
|
Reynolds Water Company Mercer County |
2,370 | 4 | 1 | |
|
Cambridge Springs Borough Crawford County |
2,363 | 7 | 1 | |
|
Slippery Rock Campground Assn Butler County |
2,360 | 1 | 0 | |
|
Duncansville Muni Water Auth Blair County |
2,350 | 5 | 1 | |
|
Mercersburg Muni Water Auth Franklin County |
2,350 | 7 | 1 | |
|
Newmanstown Water Auth Lebanon County |
2,335 | 1 | 0 | |
|
Aqua PA Factoryville Wyoming County |
2,323 | 1 | 0 | |
|
Southern York CO Sch Dist York County |
2,312 | 0 | 0 | |
|
Aqua PA Crawford Div Crawford County |
2,300 | 0 | 0 | |
|
Bermudian Springs Sch Dist Adams County |
2,300 | 0 | 0 | |
|
Leesport Borough Berks County |
2,300 | 1 | 0 | |
|
Susquenita Sch Dist Perry County |
2,300 | 0 | 0 | |
|
Valley Forge Natl Park Montgomery County |
2,300 | 1 | 0 | |
|
Halifax Area Water & Sewer Aut Dauphin County |
2,278 | 1 | 0 | |
|
Jim Thorpe Borough Water West Carbon County |
2,274 | 0 | 0 | |
|
Buhl Community Water Company Mercer County |
2,227 | 2 | 0 | |
|
Oley Twp Muni Auth Berks County |
2,204 | 3 | 0 | |
|
Aleppo Twp Auth Allegheny County |
2,200 | 1 | 0 | |
|
Blawnox Boro Water Dept Allegheny County |
2,200 | 4 | 0 | |
|
Borough of Dublin Bucks County |
2,200 | 2 | 1 | |
|
PA Dot Safety Rest Area #39 Luzerne County |
2,200 | 0 | 0 | |
|
PA Dot Safety Rest Area #53 Luzerne County |
2,200 | 2 | 1 | |
|
Pmsd West High School Monroe County |
2,200 | 4 | 1 | |
|
ST Correct Inst Huntingdon Huntingdon County |
2,200 | 1 | 0 | |
|
Wallenpaupack Lake Estates Wayne County |
2,200 | 4 | 2 | |
|
Dvsd School Complex Pike County |
2,197 | 0 | 0 |
About this data
Rules violated counts the rules a system was in violation of in the past three years, including monitoring and reporting lapses; one rule can carry several violations. Unresolved is the number of those rules currently in violation at EPA's latest data refresh.
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.