Diquat violations in Pennsylvania
193 active public water systems in Pennsylvania had a Diquat violation in the past three years, 8 of them in the latest quarter of EPA's data. What Diquat is and why it matters.
Systems with a Diquat 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 | |
|
Mun Water Auth of Aliquippa Beaver County |
15,685 | 7 | 0 | |
|
Morrisville Munic Authority Bucks County |
13,342 | 3 | 2 | |
|
Aqua PA Hatboro Montgomery County |
12,901 | 1 | 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 | |
|
Danville Municipal Water Auth Montour County |
4,992 | 6 | 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 | |
|
Cooper Twp Municipal Auth Clearfield County |
3,700 | 3 | 0 | |
|
Conyngham Sugarloaf Joint MA Luzerne County |
3,230 | 3 | 0 | |
|
Tower City Borough Authority Schuylkill County |
3,150 | 3 | 0 | |
|
Muni Auth of Boro of Matamoras Pike County |
2,900 | 9 | 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 | |
|
Canton Borough Authority Bradford County |
2,050 | 2 | 0 | |
|
Duncannon Muni Water Perry County |
2,000 | 2 | 0 | |
|
General McLane Schools Erie 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 | |
|
Ojrsd Owen J Roberts MS and HS Chester County |
1,750 | 1 | 0 | |
|
Blossburg Municipal Authority Tioga County |
1,650 | 3 | 0 | |
|
Worthington West Franklin Jma Armstrong County |
1,500 | 5 | 0 | |
|
McDonalds Brodheadsville Monroe County |
1,200 | 3 | 1 | |
|
Tulpehocken Area Mid High SC Berks County |
930 | 3 | 0 | |
|
Mountain View Elem School Susquehanna County |
900 | 1 | 0 | |
|
Mountainview High School Susquehanna County |
822 | 2 | 0 | |
|
Paradise Stream Resor Monroe County |
774 | 9 | 3 | |
|
Oak Ridge Authority Centre County |
700 | 5 | 1 | |
|
Clintonville Boro Wtp Venango County |
557 | 5 | 0 | |
|
Lake Adventure Community Assn Pike County |
499 | 3 | 1 | |
|
Lake Wallenpaupack Sandy Shore Wayne County |
499 | 3 | 1 | |
|
W Carroll Twp W Auth ST Bened Cambria County |
488 | 6 | 0 | |
|
Lake Noxen Elementary School Luzerne County |
450 | 4 | 1 |
About this data
A system is counted once if any of its violations in the past three years involved Diquat, including monitoring and reporting lapses. Rules violated and status in the table are for the whole system, not Diquat 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.