Arsenic violations in Pennsylvania
166 active public water systems in Pennsylvania had a Arsenic violation in the past three years, 5 of them in the latest quarter of EPA's data. What Arsenic is and why it matters.
Systems with a Arsenic violation
Latest quarter first, then largest first| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Ilera Healthcare Fulton Cty Fulton County |
250 | 3 | 0 | |
|
Pinecrest Village MHP Lycoming County |
195 | 12 | 3 | |
|
New Castle School of Trades Lawrence County |
150 | 3 | 0 | |
|
Washington Inn Berks County |
70 | 4 | 0 | |
|
Maplewood Heights Wyoming County |
32 | 1 | 0 | |
|
Aqua PA Main System Montgomery County |
822,600 | 6 | 0 | |
|
Schuylkill CO Mun Auth Schuylkill County |
31,850 | 2 | 0 | |
|
Latrobe Muni Auth Westmoreland County |
30,000 | 2 | 0 | |
|
Mun Water Auth of Aliquippa Beaver County |
15,685 | 7 | 0 | |
|
Windber Area Auth Somerset County |
9,463 | 6 | 0 | |
|
Minersville Municipal Water AU Schuylkill County |
7,275 | 5 | 0 | |
|
Indian Creek Valley Water Auth Fayette County |
7,000 | 4 | 0 | |
|
Beaver Boro Muni Auth Beaver County |
5,799 | 9 | 0 | |
|
Selinsgrove Muni Auth Snyder County |
5,584 | 5 | 0 | |
|
Greencastle Area Water Auth Franklin County |
5,500 | 3 | 0 | |
|
Mun Auth of Boro of Bedford Bedford County |
5,127 | 4 | 0 | |
|
Northern Cambria Muni Water Cambria County |
4,500 | 5 | 0 | |
|
Ashland Area Water Authority Schuylkill County |
4,200 | 4 | 0 | |
|
Blairsville Muni Auth Indiana County |
4,023 | 5 | 0 | |
|
Ligonier Twp Muni Auth Westmoreland County |
3,293 | 8 | 0 | |
|
Lykens Boro Auth Dauphin County |
3,220 | 6 | 0 | |
|
Coudersport Boro Authority Potter County |
3,166 | 9 | 1 | |
|
Lake City Boro Munic Water Erie County |
2,935 | 3 | 1 | |
|
Johnsonburg Municipal Auth Elk County |
2,413 | 6 | 1 | |
|
Duncansville Muni Water Auth Blair County |
2,350 | 5 | 1 | |
|
Saint Francis University Cambria County |
2,072 | 3 | 0 | |
|
Twp of Upper Makefield Bucks County |
1,800 | 6 | 0 | |
|
Chestnut Ridge School District Bedford County |
1,500 | 2 | 0 | |
|
Wasd High School Pike County |
1,456 | 4 | 1 | |
|
Plumstead Twp Summer Hill Mead Bucks County |
1,284 | 4 | 0 | |
|
Peter J. Camiel Service Plaza Chester County |
1,100 | 6 | 1 | |
|
Sandy Lake Boro Mercer County |
1,100 | 5 | 0 | |
|
Polk Center Venango County |
1,058 | 13 | 0 | |
|
Thompsontown Muni Auth Juniata County |
1,000 | 3 | 0 | |
|
Trumbauersville Mun Waterworks Bucks County |
974 | 5 | 0 | |
|
Millville Municipal Authority Columbia County |
969 | 12 | 1 | |
|
Millheim Borough Water Company Centre County |
902 | 13 | 1 | |
|
New Hanover Upper Fred E S Montgomery County |
850 | 3 | 0 | |
|
Gilbertsville Elementary Montgomery County |
800 | 3 | 0 | |
|
Paradise Stream Resor Monroe County |
774 | 9 | 3 | |
|
Charles Cole Memorial Hospital Potter County |
750 | 8 | 0 | |
|
Lake Lehman High School Luzerne County |
750 | 6 | 1 | |
|
Summerville Boro Mun Auth Jefferson County |
700 | 6 | 1 | |
|
Gregg Township Water Authority Centre County |
670 | 10 | 1 | |
|
Jim Thorpe School K to 8 Grade Carbon County |
660 | 3 | 0 | |
|
Maplewood Jr/sr High School Crawford County |
600 | 5 | 1 | |
|
Clarks Summit State Hospital Lackawanna County |
576 | 7 | 1 | |
|
Newell Muni Auth Fayette County |
520 | 4 | 0 | |
|
Maplewood Elementary School Crawford County |
500 | 5 | 1 | |
|
Gov Mifflin Brecknock Elem Sch Berks County |
480 | 4 | 0 |
About this data
A system is counted once if any of its violations in the past three years involved Arsenic, including monitoring and reporting lapses. Rules violated and status in the table are for the whole system, not Arsenic 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.