1,2-Dichloroethane violations in Pennsylvania
169 active public water systems in Pennsylvania had a 1,2-Dichloroethane violation in the past three years, 6 of them still unresolved. What 1,2-Dichloroethane is and why it matters.
Systems with a 1,2-Dichloroethane violation
Unresolved first, then largest first| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Little Acres Learning Campus Lackawanna County |
86 | 5 | 2 | |
|
Country Glen Townhomes Monroe County |
50 | 10 | 3 | |
|
Diehl Automotive of Grove City Mercer County |
50 | 2 | 0 | |
|
Congregation Ohr Menachem Monroe County |
30 | 9 | 2 | |
|
Oak Grove Apartments Monroe County |
30 | 4 | 0 | |
|
Tower Springs LLC Schuylkill County |
25 | 9 | 1 | |
|
State College Boro Water Auth Centre County |
72,000 | 5 | 0 | |
|
Horsham Water&sewer Authority Montgomery County |
26,000 | 5 | 0 | |
|
Muhlenberg Twp Muni Auth Berks County |
22,400 | 4 | 0 | |
|
Nwwa Warrington Township Bucks County |
21,588 | 3 | 0 | |
|
Humboldt Industrial Park Luzerne County |
11,243 | 5 | 0 | |
|
Downingtown Water Authority Chester County |
9,900 | 3 | 0 | |
|
PA American Audubon Montgomery County |
8,200 | 8 | 0 | |
|
Conemaugh Twp Muni Auth Somerset County |
7,800 | 11 | 0 | |
|
Edinboro Water Authority Erie County |
7,800 | 3 | 0 | |
|
Littlestown Boro Adams County |
7,300 | 2 | 0 | |
|
Beaver Boro Muni Auth Beaver County |
5,799 | 9 | 0 | |
|
Buckingham Twp Furlong Bucks County |
4,150 | 2 | 0 | |
|
Ligonier Twp Muni Auth Westmoreland County |
3,293 | 8 | 0 | |
|
Walnutport Authority Northampton County |
3,000 | 5 | 0 | |
|
Muni Auth of Boro of Matamoras Pike County |
2,900 | 9 | 2 | |
|
Bangor Area School Complex Northampton County |
2,700 | 3 | 0 | |
|
Greenfield Twp Muni Auth Blair County |
2,500 | 2 | 0 | |
|
Misericordia University Luzerne County |
2,400 | 7 | 2 | |
|
Smethport Borough McKean County |
2,400 | 5 | 0 | |
|
Twp of Upper Makefield Bucks County |
1,800 | 6 | 0 | |
|
East Berlin Area Joint Auth Adams County |
1,750 | 4 | 1 | |
|
Roulette Twp Water Authority Potter County |
1,300 | 7 | 1 | |
|
Shinglehouse Boro Water Dept Potter County |
1,250 | 6 | 0 | |
|
Polk Center Venango County |
1,058 | 13 | 0 | |
|
Bendersville Muni Auth Adams County |
1,039 | 6 | 0 | |
|
Tulpehocken Area Mid High SC Berks County |
930 | 3 | 0 | |
|
Foxburg Area Water & Sewer Aut Clarion County |
925 | 3 | 1 | |
|
Whitetail Ski Resort Franklin County |
912 | 4 | 0 | |
|
Millheim Borough Water Company Centre County |
902 | 13 | 1 | |
|
Aiken Water Company McKean County |
850 | 5 | 1 | |
|
Kennard Dale High School York County |
800 | 2 | 0 | |
|
Paradise Stream Resor Monroe County |
774 | 9 | 3 | |
|
Charles Cole Memorial Hospital Potter County |
750 | 8 | 0 | |
|
Penns Creek Municipal Auth Snyder County |
725 | 10 | 0 | |
|
Lawrenceville Boro Water Dept Tioga County |
691 | 9 | 1 | |
|
Petersburg Bor Water Auth Huntingdon County |
650 | 4 | 0 | |
|
Ulysses Municipal Authority Potter County |
640 | 5 | 1 | |
|
Crawford Township Authority Clinton County |
600 | 4 | 0 | |
|
Palisades Senior High School Bucks County |
562 | 3 | 0 | |
|
Venango Water CO Venango County |
550 | 2 | 0 | |
|
Bills Plaza Lackawanna County |
501 | 6 | 2 | |
|
Pike County Correctional Facil Pike County |
500 | 6 | 0 | |
|
Village Shopping Center Wyoming County |
500 | 4 | 1 | |
|
Genesee Twp Water Authority Potter County |
450 | 11 | 1 |
About this data
A system is counted once if any of its violations in the past three years involved 1,2-Dichloroethane, including monitoring and reporting lapses. Rules violated and status in the table are for the whole system, not 1,2-Dichloroethane 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.