All water systems in Pennsylvania
7,658 systems
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Seven Springs Muni Auth Somerset County |
3,000 | 2 | 0 | |
|
Walnutport Authority Northampton County |
3,000 | 5 | 0 | |
|
Ford City Muni Water Works Armstrong County |
2,991 | 2 | 0 | |
|
Northwestern Lancaster CO Auth Lancaster County |
2,968 | 1 | 0 | |
|
Pawc Wild Acres Pike County |
2,943 | 0 | 0 | |
|
Lake City Boro Munic Water Erie County |
2,935 | 3 | 1 | |
|
Wawa Food Market 289 Chester County |
2,925 | 0 | 0 | |
|
Lca North Whitehall Division Lehigh County |
2,910 | 0 | 0 | |
|
Reynoldsville Water Auth Jefferson County |
2,908 | 4 | 0 | |
|
North Coventry Water System Chester County |
2,907 | 3 | 0 | |
|
Boswell Boro Muni Auth Somerset County |
2,900 | 2 | 0 | |
|
Muncy Borough Water Company Lycoming County |
2,900 | 3 | 0 | |
|
Muni Auth of Boro of Matamoras Pike County |
2,900 | 9 | 2 | |
|
Sci Dallas Luzerne County |
2,900 | 5 | 0 | |
|
Honey Brook Boro Water Chester County |
2,892 | 5 | 0 | |
|
Summit Hill Water Authority Carbon County |
2,890 | 3 | 0 | |
|
West Grove Borough Chester County |
2,873 | 4 | 0 | |
|
Jim Thorpe Borough Water East Carbon County |
2,853 | 0 | 0 | |
|
PA Amer Water CO Fallbrook Lackawanna County |
2,851 | 0 | 0 | |
|
Nesquehoning Boro Water Auth Carbon County |
2,850 | 3 | 1 | |
|
State Corr Inst Benner Twp Centre County |
2,850 | 2 | 0 | |
|
Warwick Twp Rothsville System Lancaster County |
2,846 | 2 | 0 | |
|
Hughesville Borough Water Auth Lycoming County |
2,800 | 7 | 0 | |
|
National Pike Water Auth Fayette County |
2,800 | 2 | 0 | |
|
Milesburg Borough Water Auth Centre County |
2,750 | 4 | 2 | |
|
Ohioville Boro Muni Auth Beaver County |
2,750 | 6 | 0 | |
|
Bonneauville Muni Water Auth Adams County |
2,730 | 4 | 0 | |
|
Youngstown Boro Muni Auth Westmoreland County |
2,730 | 1 | 0 | |
|
Pvsd Center Elementary School Monroe County |
2,722 | 3 | 2 | |
|
Pine Grove Boro Water System Schuylkill County |
2,711 | 1 | 0 | |
|
Bangor Area School Complex Northampton County |
2,700 | 3 | 0 | |
|
Elizabethville Area Auth Dauphin County |
2,700 | 0 | 0 | |
|
Montgomery Water Authority Lycoming County |
2,700 | 3 | 0 | |
|
Albert Gallatin Muni Auth Fayette County |
2,695 | 2 | 1 | |
|
Bath Municipal Water Works Northampton County |
2,680 | 1 | 0 | |
|
Pawc Westgate Northampton County |
2,668 | 0 | 0 | |
|
Elkland Boro Water Authority Tioga County |
2,660 | 5 | 0 | |
|
Aqua PA Beech Mountain Luzerne County |
2,646 | 0 | 0 | |
|
Upmc Western Psychiatric Inst Allegheny County |
2,645 | 3 | 1 | |
|
Weatherly Boro Mun Auth Carbon County |
2,612 | 5 | 0 | |
|
Western Clinton CO Mun Auth Clinton County |
2,610 | 9 | 1 | |
|
Plumstead Northern System Bucks County |
2,605 | 2 | 0 | |
|
Bentleyville Muni Auth Washington County |
2,600 | 4 | 1 | |
|
Caledonia ST Park Franklin County |
2,600 | 1 | 1 | |
|
Ontelaunee Township Berks County |
2,598 | 2 | 1 | |
|
Allegheny General Hospital Allegheny County |
2,595 | 0 | 0 | |
|
Port Allegany Water Department McKean County |
2,591 | 4 | 0 | |
|
Coopersburg Mun Water Auth Lehigh County |
2,570 | 1 | 0 | |
|
Meyersdale Muni Auth Somerset County |
2,566 | 5 | 0 | |
|
Blair Twp Water & Sewer Auth Blair County |
2,550 | 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.