Tapcensus

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.

Health effects: Chronic exposure to 2,4-D is associated with kidney, liver, and adrenal gland damage in animal studies. IARC classifies it as possibly carcinogenic to humans (Group 2B); EPA's classification is not likely to be carcinogenic under current guidelines. Individuals with kidney or liver conditions may face greater risk from long-term exposure.

Systems with a 2,4-D violation

Latest quarter first, then largest first
SystemServesStatusRules violated, 3 yrUnresolved
Helping Hands, Inc.
Montgomery County
70 4 0
Ppl Electric Utilities Corp
Columbia County
70 1 0
The Surgery Center
Columbia County
70 5 0
Log Road Village
Lackawanna County
68 5 1
Cozy Oaks MHP
Mercer County
65 3 0
Icmsa Arcadia
Indiana County
65 4 1
Meshoppen Townhouse Apts
Wyoming County
65 4 0
Seven Hills MHP
Bradford County
65 3 1
State Line MHP
Franklin County
65 5 1
Delmar Meadows MHC
Tioga County
64 4 0
Copper Kettle MHP
Wyoming County
62 4 2
Salem Heights Estate
Wayne County
62 13 4
Country Acres Mobile Home Park
Columbia County
60 5 0
Ecs Amsa 103
Crawford County
60 3 0
Hidden Valley Mobile Home CT
Lycoming County
60 4 0
Crosby Water Association
McKean County
56 4 0
Greystone Country Estates
Mercer County
55 2 0
Majors Mobilehome Park
Lawrence County
55 2 0
Pennwood Estates MHP
Mercer County
51 6 0
Country Kidz Daycare
Crawford County
50 2 0
Diehl Automotive of Grove City
Mercer County
50 2 0
Kampel Enterprises INC
York County
50 2 0
King Swings
Chester County
50 4 0
Starn Tool & Manufacturing CO
Crawford County
50 3 0
Tri County Rural Electric
Tioga County
50 5 0
Green Acres Mobile Home Park
Northampton County
48 4 0
Greenfield Acres MHP
Lackawanna County
48 5 1
Hydro Pac Mfg
Erie County
46 3 0
Mountain Crest Development
Wayne County
44 7 0
Frelighs Whispering Pines MHP
Erie County
42 6 0
Lakeside MHP
Lebanon County
40 4 0
Pine Garden Apartments
Westmoreland County
40 9 2
Ray Price Mount Pocono
Monroe County
40 1 0
Killiam Tract
Pike County
39 4 1
Rural Solution W3 LLC
Crawford County
38 9 1
Eagle Ridge Personal Care Home
Clinton County
37 10 1
Ridge View Personal Care Home
Blair County
35 3 1
Wheatfield Village
Pike County
35 10 2
Woodlyn Residences
Wayne County
35 4 0
Magic Chef MHP
Lancaster County
32 2 0
Pleasant Run MHP
Montgomery County
32 4 0
Chestnuthill Twp Emg OP Center
Monroe County
30 2 0
Community Bible Church & Sch
Beaver County
30 1 0
Dauphin CO Conservation Dist
Dauphin County
30 5 0
Mrs Colleens Childcare
Susquehanna County
30 3 0
Ridgeview MHP & Apts
Lebanon County
30 6 0
Robinsons Mobile Home Park
Butler County
30 10 0
Sicklers MHP
Wyoming County
30 7 3
Ugi Utilities INC
Tioga County
30 4 0
Amazon
Lackawanna County
25 3 2
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.