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 |
|---|---|---|---|---|
|
Brookside Village MHP Columbia County |
475 | 9 | 0 | |
|
Conneaut Lake Middle School Crawford County |
450 | 1 | 0 | |
|
Genesee Twp Water Authority Potter County |
450 | 11 | 1 | |
|
Fredonia Boro Mercer County |
443 | 3 | 1 | |
|
Herndon Boro Jackson Twp Jma Northumberland County |
432 | 3 | 0 | |
|
Dudley Carbon Coalmont JM Auth Huntingdon County |
403 | 8 | 1 | |
|
Plumsteadville Shopping Center Bucks County |
400 | 4 | 1 | |
|
Ralston Area Joint Authority Lycoming County |
400 | 7 | 2 | |
|
Walmar Manor MHP York County |
400 | 7 | 0 | |
|
Umh Valley Stream Luzerne County |
384 | 4 | 0 | |
|
Hickory Hill Country Village Erie County |
375 | 9 | 0 | |
|
West Penn Elementary Schuylkill County |
360 | 4 | 0 | |
|
Cove Haven Resort Wayne County |
350 | 5 | 1 | |
|
New Oxford Manor MHP Adams County |
350 | 5 | 0 | |
|
Woodhaven Mobile Home Park Erie County |
350 | 12 | 4 | |
|
Durham Nock Elem School Bucks County |
336 | 3 | 1 | |
|
Coaldale Six Mile Run Water Bedford County |
320 | 9 | 1 | |
|
Boyertown Earl Elem Sch Berks County |
313 | 3 | 0 | |
|
Pillow Boro Auth Dauphin County |
312 | 4 | 0 | |
|
Ctma Sagamore Armstrong County |
300 | 5 | 0 | |
|
Little Buffalo ST Park Perry County |
300 | 3 | 0 | |
|
Penn 80 Milton Northumberland County |
300 | 9 | 0 | |
|
Union Square Bucks County |
300 | 3 | 0 | |
|
The Meadows Centre County |
289 | 4 | 0 | |
|
Addison Area Water Auth Somerset County |
284 | 7 | 0 | |
|
Halifax Village Dauphin County |
272 | 9 | 0 | |
|
Cogan Valley Mobile Home Park Lycoming County |
250 | 10 | 1 | |
|
Great Dane Limited Partnership Montour County |
250 | 4 | 0 | |
|
Leprino Foods Bradford County |
250 | 5 | 0 | |
|
Mary D Community Association Schuylkill County |
250 | 7 | 0 | |
|
Crestview Village MHP Dauphin County |
223 | 9 | 0 | |
|
Somerset Twp Mun Auth Listie Somerset County |
218 | 5 | 0 | |
|
Defiance Water Assn Bedford County |
205 | 9 | 1 | |
|
Canal Mobile Home Park Wayne County |
200 | 3 | 0 | |
|
Foxcroft Manor Mobile Home PK Lycoming County |
200 | 2 | 0 | |
|
Maple Lane Estates Luzerne County |
200 | 6 | 3 | |
|
Ilsco Extrusions Mercer County |
175 | 2 | 0 | |
|
Plumstead Christian Lower Schl Bucks County |
175 | 4 | 0 | |
|
Bernies Mobile Home Park Butler County |
170 | 8 | 1 | |
|
Greater Johnstown WA Saltlick Cambria County |
170 | 9 | 0 | |
|
Happy Acres Development Lackawanna County |
168 | 12 | 2 | |
|
Blue Mountain Heights MHP Cumberland County |
162 | 1 | 0 | |
|
Country Crest MHP Luzerne County |
150 | 7 | 1 | |
|
Fedex Erie Facility Erie County |
150 | 2 | 0 | |
|
Free Grace Bic Church Dauphin County |
150 | 3 | 0 | |
|
Vali-View Mobile Home Park Lycoming County |
150 | 11 | 1 | |
|
Monument Water Authority Centre County |
140 | 11 | 0 | |
|
Deann Village MHP Dauphin County |
135 | 10 | 0 | |
|
Country View Manor Ywc York County |
125 | 1 | 0 | |
|
Leesburg Water Association Mercer County |
125 | 1 | 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.