2,4-D violations in Pennsylvania
206 active public water systems in Pennsylvania had a 2,4-D violation in the past three years, 8 of them in the latest quarter of EPA's data. What 2,4-D is and why it matters.
Systems with a 2,4-D violation
Latest quarter first, then largest first| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Highland S & W Auth Lloydell Cambria County |
723 | 3 | 0 | |
|
Oak Ridge Authority Centre County |
700 | 5 | 1 | |
|
Lawrenceville Boro Water Dept Tioga County |
691 | 9 | 1 | |
|
Ulysses Municipal Authority Potter County |
640 | 5 | 1 | |
|
Port Matilda Waterworks Centre County |
615 | 3 | 0 | |
|
Clintonville Boro Wtp Venango County |
557 | 5 | 0 | |
|
Cross Creek Resort Venango County |
500 | 3 | 0 | |
|
Lake Adventure Community Assn Pike County |
499 | 3 | 1 | |
|
Lake Wallenpaupack Sandy Shore Wayne County |
499 | 3 | 1 | |
|
ST Petersburg Municipal Water Clarion County |
465 | 7 | 0 | |
|
Lake Noxen Elementary School Luzerne County |
450 | 4 | 1 | |
|
Regency Woods MHP Cumberland County |
450 | 2 | 1 | |
|
Longwood Gardens Chester County |
440 | 5 | 0 | |
|
Miles Twp Water Auth East Centre County |
425 | 4 | 1 | |
|
Kennerdell North Water System Venango County |
412 | 4 | 0 | |
|
Heatherbrooke Estates Lycoming County |
410 | 4 | 0 | |
|
Waterford Waterworks Westmoreland County |
389 | 8 | 0 | |
|
Cooperstown Water Company Venango County |
360 | 8 | 0 | |
|
Damascus Area School Wayne County |
350 | 1 | 0 | |
|
Burnside Boro Water System Clearfield County |
325 | 3 | 0 | |
|
Ctma Sagamore Armstrong County |
300 | 5 | 0 | |
|
Knox Township Munic Authority Jefferson County |
300 | 8 | 0 | |
|
Montgomery School Chester County |
300 | 4 | 1 | |
|
Paradise Point Wayne County |
300 | 5 | 0 | |
|
Victaulic Lawrenceville Tioga County |
300 | 3 | 0 | |
|
West End Plaza Monroe County |
300 | 2 | 1 | |
|
Perry Twp Municipal Auth Snyder County |
285 | 2 | 0 | |
|
Addison Area Water Auth Somerset County |
284 | 7 | 0 | |
|
Country Pines MHP Luzerne County |
280 | 8 | 3 | |
|
Halifax Village Dauphin County |
272 | 9 | 0 | |
|
Pine Grove Estates Wayne County |
263 | 7 | 0 | |
|
Cogan Valley Mobile Home Park Lycoming County |
250 | 10 | 1 | |
|
Hawk Valley Village Lancaster County |
250 | 3 | 0 | |
|
Malvern Courts MHP Chester County |
250 | 3 | 0 | |
|
Meadows Mobile Home Park Westmoreland County |
250 | 6 | 3 | |
|
Ranch House Restaurant Perry County |
250 | 2 | 1 | |
|
Loysville Youth Dev Ctr Perry County |
249 | 6 | 0 | |
|
Sunshine Hills Water CO Perry County |
248 | 3 | 0 | |
|
Plumstead Christian Upper Schl Bucks County |
230 | 1 | 0 | |
|
Dean Twp Water System Cambria County |
216 | 4 | 0 | |
|
Camelback Lodge & Waterpark Monroe County |
200 | 3 | 1 | |
|
Sparrow Pond Camp Ground Erie County |
200 | 3 | 0 | |
|
Brinton Manor Delaware County |
196 | 8 | 0 | |
|
Pinecrest Village MHP Lycoming County |
195 | 12 | 3 | |
|
Laurel Lane Development Assoc Pike County |
179 | 5 | 1 | |
|
Country Village MHP Luzerne County |
175 | 5 | 2 | |
|
Dublin Acres Homeowners Assoc Bucks County |
175 | 3 | 0 | |
|
Plumstead Christian Lower Schl Bucks County |
175 | 4 | 0 | |
|
Tiadaghton View MHP Lycoming County |
175 | 3 | 0 | |
|
Bernies Mobile Home Park Butler County |
170 | 8 | 1 |
About this data
A system is counted once if any of its violations in the past three years involved 2,4-D, including monitoring and reporting lapses. Rules violated and status in the table are for the whole system, not 2,4-D 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.