Heptachlor violations in Pennsylvania
201 active public water systems in Pennsylvania had a Heptachlor violation in the past three years, 8 of them in the latest quarter of EPA's data. What Heptachlor is and why it matters.
Systems with a Heptachlor 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 | |
|
Horsham Water&sewer Authority Montgomery County |
26,000 | 5 | 0 | |
|
Shippensburg Boro Water Auth Cumberland County |
17,800 | 2 | 0 | |
|
Morrisville Munic Authority Bucks County |
13,342 | 3 | 2 | |
|
Boro of Waynesboro Franklin County |
13,200 | 4 | 0 | |
|
Aqua PA Hatboro Montgomery County |
12,901 | 1 | 0 | |
|
Bellefonte Borough Water Auth Centre County |
9,500 | 3 | 0 | |
|
Muni Auth of Washington Twp Fayette County |
9,100 | 5 | 0 | |
|
PA American Audubon Montgomery County |
8,200 | 8 | 0 | |
|
Grove City Boro Water Dept Mercer County |
7,871 | 3 | 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 | |
|
North East Borough Water Dept Erie County |
4,601 | 3 | 0 | |
|
Millersburg Water Auth Dauphin County |
4,600 | 2 | 0 | |
|
Upper Hanover Water Authority Montgomery County |
4,600 | 4 | 1 | |
|
Bear Creek Mountain Resort Berks County |
4,500 | 1 | 0 | |
|
Northern Cambria Muni Water Cambria County |
4,500 | 5 | 0 | |
|
Masonic Homes Lancaster County |
3,707 | 2 | 0 | |
|
Cooper Twp Municipal Auth Clearfield County |
3,700 | 3 | 0 | |
|
Walker Twp Water Assn Centre County |
3,250 | 3 | 0 | |
|
Conyngham Sugarloaf Joint MA Luzerne County |
3,230 | 3 | 0 | |
|
Tower City Borough Authority Schuylkill County |
3,150 | 3 | 0 | |
|
Mansfield University Tioga County |
3,000 | 5 | 0 | |
|
Muni Auth of Boro of Matamoras Pike County |
2,900 | 9 | 2 | |
|
Milesburg Borough Water Auth Centre County |
2,750 | 4 | 2 | |
|
Bangor Area School Complex Northampton County |
2,700 | 3 | 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 | |
|
Duncannon Muni Water Perry County |
2,000 | 2 | 0 | |
|
McConnellsburg Boro Muni Auth Fulton County |
2,000 | 9 | 0 | |
|
Grove Worldwide US LLC Franklin County |
1,800 | 4 | 2 | |
|
Blossburg Municipal Authority Tioga County |
1,650 | 3 | 0 | |
|
Elverson Water Company Chester County |
1,641 | 3 | 0 | |
|
Saegertown Borough Crawford County |
1,500 | 3 | 0 | |
|
Worthington West Franklin Jma Armstrong County |
1,500 | 5 | 0 | |
|
Bald Eagle State Park Centre County |
1,276 | 4 | 0 | |
|
Polk Center Venango County |
1,058 | 13 | 0 | |
|
Tulpehocken Area Mid High SC Berks County |
930 | 3 | 0 |
About this data
A system is counted once if any of its violations in the past three years involved Heptachlor, including monitoring and reporting lapses. Rules violated and status in the table are for the whole system, not Heptachlor 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.