Endothall violations in Pennsylvania
196 active public water systems in Pennsylvania had a Endothall violation in the past three years, 8 of them in the latest quarter of EPA's data. What Endothall is and why it matters.
Systems with a Endothall violation
Latest quarter first, then largest first| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Hughesville Borough Water Auth Lycoming County |
2,800 | 7 | 0 | |
|
Little Acres Learning Campus Lackawanna County |
86 | 5 | 2 | |
|
Beaver Run Water Association Carbon County |
50 | 8 | 1 | |
|
Country Glen Townhomes Monroe County |
50 | 10 | 3 | |
|
Congregation Ohr Menachem Monroe County |
30 | 9 | 2 | |
|
Oak Grove Apartments Monroe County |
30 | 4 | 0 | |
|
Overpeck MHP Wyoming County |
25 | 9 | 4 | |
|
Tower Springs LLC Schuylkill County |
25 | 9 | 1 | |
|
Pittsburgh Water & Sewer Auth Allegheny County |
520,000 | 3 | 0 | |
|
Greater Johnstown WA Riverside Cambria County |
49,500 | 7 | 0 | |
|
Aqua PA West Chester Chester County |
48,600 | 1 | 0 | |
|
ST Marys Area Water Auth Elk County |
19,588 | 4 | 0 | |
|
Phoenixville Water Dept Chester County |
16,599 | 8 | 0 | |
|
Robinson Twp Muni Auth Allegheny County |
16,354 | 4 | 0 | |
|
Morrisville Munic Authority Bucks County |
13,342 | 3 | 2 | |
|
Aqua PA Hatboro Montgomery County |
12,901 | 1 | 0 | |
|
General Authority of Franklin Venango County |
9,096 | 2 | 0 | |
|
Houtzdale Municipal Authority Clearfield County |
8,410 | 2 | 0 | |
|
PA American Audubon Montgomery County |
8,200 | 8 | 0 | |
|
Conemaugh Twp Muni Auth Somerset County |
7,800 | 11 | 0 | |
|
Minersville Municipal Water AU Schuylkill County |
7,275 | 5 | 0 | |
|
Portage Boro Muni Auth Cambria County |
6,500 | 9 | 0 | |
|
Schuylkill Haven Boro Water Schuylkill County |
6,000 | 2 | 0 | |
|
Danville Municipal Water Auth Montour County |
4,992 | 6 | 0 | |
|
Bear Creek Mountain Resort Berks County |
4,500 | 1 | 0 | |
|
Northern Cambria Muni Water Cambria County |
4,500 | 5 | 0 | |
|
Tobyhanna Army Depot Monroe County |
3,800 | 4 | 0 | |
|
Cooper Twp Municipal Auth Clearfield County |
3,700 | 3 | 0 | |
|
Middlesex Twp Muni Auth Cumberland County |
3,527 | 2 | 0 | |
|
Conyngham Sugarloaf Joint MA Luzerne County |
3,230 | 3 | 0 | |
|
Tower City Borough Authority Schuylkill County |
3,150 | 3 | 0 | |
|
E Greenville Boro Water Dept Montgomery County |
3,100 | 3 | 0 | |
|
Walnutport Authority Northampton County |
3,000 | 5 | 0 | |
|
Muni Auth of Boro of Matamoras Pike County |
2,900 | 9 | 2 | |
|
West Grove Borough Chester County |
2,873 | 4 | 0 | |
|
Western Clinton CO Mun Auth Clinton County |
2,610 | 9 | 1 | |
|
Greenfield Twp Muni Auth Blair County |
2,500 | 2 | 0 | |
|
Bally Muni Water Works Berks County |
2,146 | 1 | 0 | |
|
Canton Borough Authority Bradford County |
2,050 | 2 | 0 | |
|
McConnellsburg Boro Muni Auth Fulton County |
2,000 | 9 | 0 | |
|
Grove Worldwide US LLC Franklin County |
1,800 | 4 | 2 | |
|
Waterside Loysburg Water Suppl Bedford County |
1,724 | 4 | 0 | |
|
Blossburg Municipal Authority Tioga County |
1,650 | 3 | 0 | |
|
Worthington West Franklin Jma Armstrong County |
1,500 | 5 | 0 | |
|
Delta Boro Water Sys York County |
1,400 | 5 | 1 | |
|
Polk Center Venango County |
1,058 | 13 | 0 | |
|
Millville Municipal Authority Columbia County |
969 | 12 | 1 | |
|
Mountain View Elem School Susquehanna County |
900 | 1 | 0 | |
|
Mountainview High School Susquehanna County |
822 | 2 | 0 | |
|
Marlborough Elementary School Montgomery County |
800 | 1 | 0 |
About this data
A system is counted once if any of its violations in the past three years involved Endothall, including monitoring and reporting lapses. Rules violated and status in the table are for the whole system, not Endothall 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. Retrieved from ECHO on Oct 11, 2026.