Radium-226 violations in Pennsylvania
123 active public water systems in Pennsylvania had a Radium-226 violation in the past three years, 3 of them in the latest quarter of EPA's data. What Radium-226 is and why it matters.
Systems with a Radium-226 violation
Latest quarter first, then largest first| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Big Bass Lake Water Assoc. Wayne County |
130 | 10 | 3 | |
|
Country Glen Townhomes Monroe County |
50 | 10 | 3 | |
|
Oak Grove Apartments Monroe County |
30 | 4 | 0 | |
|
Ephrata Area Joint Authority Lancaster County |
24,500 | 3 | 0 | |
|
Muhlenberg Twp Muni Auth Berks County |
22,400 | 4 | 0 | |
|
Center Twp Water Auth Beaver County |
19,000 | 4 | 0 | |
|
Highridge Water Auth Westmoreland County |
16,000 | 5 | 0 | |
|
Mun Water Auth of Aliquippa Beaver County |
15,685 | 7 | 0 | |
|
E Stroudsburg Boro Water Dept Monroe County |
13,000 | 2 | 0 | |
|
PA American Audubon Montgomery County |
8,200 | 8 | 0 | |
|
Municipal Authority of Corry Erie County |
7,800 | 3 | 0 | |
|
Portage Boro Muni Auth Cambria County |
6,500 | 9 | 0 | |
|
Aqua PA Chalfont Bucks County |
5,900 | 1 | 0 | |
|
Mun Auth of Boro of Bedford Bedford County |
5,127 | 4 | 0 | |
|
Mountaintop Reg Water Auth Centre County |
3,456 | 3 | 1 | |
|
Muni Auth of Boro of Matamoras Pike County |
2,900 | 9 | 2 | |
|
Sci Dallas Luzerne County |
2,900 | 5 | 0 | |
|
Western Clinton CO Mun Auth Clinton County |
2,610 | 9 | 1 | |
|
Cambridge Springs Borough Crawford County |
2,363 | 7 | 1 | |
|
Fairfield Muni Auth Adams County |
2,150 | 2 | 0 | |
|
Weaverland Valley Blue Ball Lancaster County |
1,946 | 2 | 0 | |
|
Industry Boro Muni Auth Beaver County |
1,865 | 3 | 0 | |
|
Williamsburg Munic Auth Blair County |
1,800 | 1 | 0 | |
|
Shamokin Dam Borough Snyder County |
1,700 | 3 | 0 | |
|
Hawthorn Redbank Redbank MA Clarion County |
1,500 | 5 | 1 | |
|
Shinglehouse Boro Water Dept Potter County |
1,250 | 6 | 0 | |
|
Aqua PA White Haven Luzerne County |
1,200 | 1 | 0 | |
|
Cowanshan Yatesboro Numine Sys Armstrong County |
1,200 | 2 | 0 | |
|
Sheffield Twp Municipal Auth Warren County |
1,075 | 2 | 0 | |
|
Polk Center Venango County |
1,058 | 13 | 0 | |
|
East Brady Water System Clarion County |
1,040 | 2 | 0 | |
|
Bendersville Muni Auth Adams County |
1,039 | 6 | 0 | |
|
Borough of Howard Centre County |
1,001 | 4 | 0 | |
|
Rural Valley Water Works Armstrong County |
1,000 | 2 | 0 | |
|
Umh Arbor Estates Bucks County |
920 | 3 | 1 | |
|
Millheim Borough Water Company Centre County |
902 | 13 | 1 | |
|
Wyalusing Municipal Authority Bradford County |
700 | 6 | 0 | |
|
Crawford Township Authority Clinton County |
600 | 4 | 0 | |
|
Lcwsa Village Water Lycoming County |
598 | 4 | 0 | |
|
Clarks Summit State Hospital Lackawanna County |
576 | 7 | 1 | |
|
Palm City Park Lebanon County |
490 | 9 | 1 | |
|
MT Gretna Auth Lebanon County |
485 | 3 | 0 | |
|
McVeytown Boro Auth Mifflin County |
478 | 2 | 1 | |
|
Nottingham Manor M H Court Chester County |
473 | 3 | 0 | |
|
Lake Arthur Estates Butler County |
460 | 6 | 1 | |
|
Three Springs Boro Water CO Huntingdon County |
442 | 3 | 0 | |
|
Kennerdell North Water System Venango County |
412 | 4 | 0 | |
|
Jones Twp Municipal Authority Elk County |
396 | 6 | 0 | |
|
Hickory Hill Country Village Erie County |
375 | 9 | 0 | |
|
Cooperstown Water Company Venango County |
360 | 8 | 0 |
About this data
A system is counted once if any of its violations in the past three years involved Radium-226, including monitoring and reporting lapses. Rules violated and status in the table are for the whole system, not Radium-226 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.