All water systems in Pennsylvania
7,658 systems
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
City of Dubois Water Depart Clearfield County |
7,794 | 1 | 0 | |
|
Edgeworth Boro Muni Auth Allegheny County |
7,781 | 2 | 0 | |
|
Upper Leacock Township Lancaster County |
7,734 | 0 | 0 | |
|
Telford Borough Authority Montgomery County |
7,700 | 1 | 0 | |
|
Veolia Water PA Dallas Luzerne County |
7,563 | 1 | 0 | |
|
Maidencreek Twp Water Auth Berks County |
7,505 | 1 | 0 | |
|
Littlestown Boro Adams County |
7,300 | 2 | 0 | |
|
Upper Saucon Twp Water Supply Lehigh County |
7,300 | 1 | 0 | |
|
Minersville Municipal Water AU Schuylkill County |
7,275 | 5 | 0 | |
|
Blythe Twp Municipal Authority Schuylkill County |
7,100 | 2 | 0 | |
|
Womelsdorf Robesonia JT Auth Berks County |
7,070 | 1 | 0 | |
|
Pawc Saw Creek Estates Pike County |
7,016 | 0 | 0 | |
|
Indian Creek Valley Water Auth Fayette County |
7,000 | 4 | 0 | |
|
MT Airy Casino & Resort Monroe County |
7,000 | 5 | 2 | |
|
Palmerton Municipal Authority Carbon County |
7,000 | 3 | 0 | |
|
Richland Twp Water Authority Bucks County |
6,800 | 3 | 0 | |
|
Sewickley Boro Water Auth Allegheny County |
6,800 | 5 | 1 | |
|
Neville Twp Water Dept Allegheny County |
6,750 | 0 | 0 | |
|
Manor Twp JT Muni Auth Armstrong County |
6,744 | 4 | 1 | |
|
East Cocalico Township Auth Lancaster County |
6,735 | 1 | 0 | |
|
Manheim Area Water & Sewer Aut Lancaster County |
6,701 | 0 | 0 | |
|
VA Pittsburgh UD Allegheny County |
6,701 | 1 | 0 | |
|
Kline Township Mun Authority Schuylkill County |
6,700 | 2 | 0 | |
|
Harmony Boro Water Auth Butler County |
6,669 | 1 | 1 | |
|
Jersey Shore Area Jnt Wat Auth Lycoming County |
6,600 | 7 | 1 | |
|
Catasauqua Mun Water Works Lehigh County |
6,598 | 2 | 0 | |
|
Aqua PA Fawn Lake Forest Pike County |
6,533 | 2 | 0 | |
|
Derry Boro Muni Auth Westmoreland County |
6,500 | 3 | 0 | |
|
Monaca Boro Water Dept Beaver County |
6,500 | 2 | 1 | |
|
Outlet Shops at Gettysburg Adams County |
6,500 | 3 | 0 | |
|
Portage Boro Muni Auth Cambria County |
6,500 | 9 | 0 | |
|
Tyrone Boro Water Auth Blair County |
6,500 | 0 | 0 | |
|
Veolia Newberry System York County |
6,480 | 0 | 0 | |
|
Geisinger Medical Center Montour County |
6,442 | 3 | 0 | |
|
PA American Water Steelton Dauphin County |
6,428 | 0 | 0 | |
|
Kennett Square Mun Water Works Chester County |
6,328 | 9 | 1 | |
|
Somerset Boro Muni Water Auth Somerset County |
6,309 | 0 | 0 | |
|
Brookville Municipal Auth Jefferson County |
6,220 | 1 | 0 | |
|
East Petersburg Borough Lancaster County |
6,215 | 1 | 0 | |
|
East Penn Mfg CO Berks County |
6,170 | 0 | 0 | |
|
Titusville Municipal Water Crawford County |
6,146 | 1 | 0 | |
|
Washington Twp Muni Auth Franklin County |
6,134 | 1 | 0 | |
|
Belle Vernon Boro Muni Auth Fayette County |
6,000 | 3 | 1 | |
|
College Twp Water Authority Centre County |
6,000 | 2 | 0 | |
|
Penn National Gaming Dauphin County |
6,000 | 1 | 1 | |
|
Schuylkill Haven Boro Water Schuylkill County |
6,000 | 2 | 0 | |
|
Aqua PA Chalfont Bucks County |
5,900 | 1 | 0 | |
|
Buffalo Twp Mun Auth Freeport Armstrong County |
5,849 | 2 | 1 | |
|
North East Township Water Erie County |
5,848 | 4 | 0 | |
|
Albion Borough Erie County |
5,842 | 7 | 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.