All water systems in Pennsylvania
7,658 systems
| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Springdale Boro Water Dept Allegheny County |
3,405 | 0 | 0 | |
|
Borough of Cornwall Lebanon County |
3,343 | 3 | 0 | |
|
Fairview Twp Water Auth Dist 3 Erie County |
3,320 | 2 | 0 | |
|
Girard Boro Water Dept Erie County |
3,301 | 1 | 1 | |
|
Emporium Water Company Cameron County |
3,300 | 1 | 1 | |
|
Spring Twp Water Authority Centre County |
3,300 | 0 | 0 | |
|
Ligonier Twp Muni Auth Westmoreland County |
3,293 | 8 | 0 | |
|
MT Holly Springs Boro Auth Cumberland County |
3,261 | 3 | 0 | |
|
Walker Twp Water Assn Centre County |
3,250 | 3 | 0 | |
|
Conyngham Sugarloaf Joint MA Luzerne County |
3,230 | 3 | 0 | |
|
Lake Meade Muni Auth Adams County |
3,221 | 1 | 0 | |
|
Lykens Boro Auth Dauphin County |
3,220 | 6 | 0 | |
|
Reserve Twp Water Dept Allegheny County |
3,204 | 0 | 0 | |
|
Aqua PA Water CO Sci Waymart Wayne County |
3,200 | 1 | 0 | |
|
Glendale Valley Municipal Auth Cambria County |
3,200 | 4 | 0 | |
|
Harmar Twp Muni Auth Allegheny County |
3,200 | 0 | 0 | |
|
Newport Boro Water Auth Perry County |
3,200 | 2 | 0 | |
|
Pawc Manwalamink Monroe County |
3,200 | 0 | 0 | |
|
Procter&gamble Paper Products Wyoming County |
3,200 | 1 | 0 | |
|
PA Amer Water CO Forest City Susquehanna County |
3,188 | 0 | 0 | |
|
Roaring Spring Muni Water Auth Blair County |
3,182 | 0 | 0 | |
|
Esasd North Campus Pike County |
3,175 | 1 | 0 | |
|
Coudersport Boro Authority Potter County |
3,166 | 9 | 1 | |
|
Bellwood Boro Auth Blair County |
3,162 | 1 | 0 | |
|
Martinsburg Muni Auth Blair County |
3,160 | 2 | 0 | |
|
East Taylor Muni Auth Cambria County |
3,152 | 6 | 1 | |
|
Nanty Glo Water Auth Cambria County |
3,152 | 6 | 1 | |
|
Aspinwall Boro Water Dept Allegheny County |
3,151 | 3 | 1 | |
|
Quarryville Boro Lancaster County |
3,150 | 2 | 1 | |
|
Redbank Valley Mun Auth Clarion County |
3,150 | 4 | 1 | |
|
Tower City Borough Authority Schuylkill County |
3,150 | 3 | 0 | |
|
Gallitzin Boro Water Auth Cambria County |
3,130 | 8 | 0 | |
|
VA Healthcare System Heinz Allegheny County |
3,112 | 0 | 0 | |
|
E Greenville Boro Water Dept Montgomery County |
3,100 | 3 | 0 | |
|
Eaton Sewer & Water CO Wyoming County |
3,100 | 3 | 0 | |
|
Fort Indiantown Gap Lebanon County |
3,100 | 2 | 1 | |
|
Mawc Furnace Run Westmoreland County |
3,100 | 1 | 0 | |
|
Midland Boro Muni Auth Beaver County |
3,100 | 7 | 1 | |
|
Octorara Area School District Chester County |
3,100 | 3 | 1 | |
|
Seven Fields Boro Water Dept Butler County |
3,100 | 0 | 0 | |
|
Strasburg Muni Water Auth Lancaster County |
3,100 | 1 | 0 | |
|
Pine Twp Water Distr System Mercer County |
3,082 | 2 | 0 | |
|
Aqua PA Eagle Rock Utilities Schuylkill County |
3,050 | 0 | 0 | |
|
Bedminster Mun Auth Bucks County |
3,042 | 2 | 1 | |
|
Macungie Borough Authority Lehigh County |
3,039 | 0 | 0 | |
|
Bcwsa New Hope Bucks County |
3,017 | 2 | 0 | |
|
Childens Hospital Upmc Allegheny County |
3,000 | 1 | 1 | |
|
Mansfield University Tioga County |
3,000 | 5 | 0 | |
|
Orwigsburg Municipal Water Wks Schuylkill County |
3,000 | 2 | 0 | |
|
Pawc Appalachian Dist Clinton County |
3,000 | 1 | 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.