Tapcensus

Atrazine violations in Pennsylvania

195 active public water systems in Pennsylvania had a Atrazine violation in the past three years, 8 of them in the latest quarter of EPA's data. What Atrazine is and why it matters.

Health effects: Chronic exposure to atrazine is associated with endocrine disruption — particularly effects on reproductive hormones — and cardiovascular and adrenal effects in animal studies. EPA classifies atrazine as not likely to be a human carcinogen under current guidelines, though its endocrine-disrupting properties remain under research scrutiny. Fetuses and infants may be most sensitive to hormonal effects.

Systems with a Atrazine violation

Latest quarter first, then largest first
SystemServesStatusRules violated, 3 yrUnresolved
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
Morrisville Munic Authority
Bucks County
13,342 3 2
Aqua PA Hatboro
Montgomery County
12,901 1 0
Icmsa Crooked Creek
Indiana County
9,638 5 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
Jersey Shore Area Jnt Wat Auth
Lycoming County
6,600 7 1
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
Martinsburg Muni Auth
Blair County
3,160 2 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
McConnellsburg Boro Muni Auth
Fulton County
2,000 9 0
Blossburg Municipal Authority
Tioga County
1,650 3 0
Elverson Water Company
Chester County
1,641 3 0
Bald Eagle State Park
Centre County
1,276 4 0
Penns Valley Area High School
Centre County
1,170 2 0
Tulpehocken Area Mid High SC
Berks County
930 3 0
Mountain View Elem School
Susquehanna County
900 1 0
Icmsa Plumville
Indiana County
883 3 0
Paradise Stream Resor
Monroe County
774 9 3
Oak Ridge Authority
Centre County
700 5 1
Gregg Township Water Authority
Centre County
670 10 1
Glencrest Mobile Home Park
Lehigh County
570 3 0
Clintonville Boro Wtp
Venango County
557 5 0
Bills Plaza
Lackawanna County
501 6 2
About this data

A system is counted once if any of its violations in the past three years involved Atrazine, including monitoring and reporting lapses. Rules violated and status in the table are for the whole system, not Atrazine 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.