1,1-Dichloroethylene violations in Pennsylvania
170 active public water systems in Pennsylvania had a 1,1-Dichloroethylene violation in the past three years, 6 of them in the latest quarter of EPA's data. What 1,1-Dichloroethylene is and why it matters.
Systems with a 1,1-Dichloroethylene violation
Latest quarter first, then largest first| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Ontelaunee Farms Berks County |
37 | 4 | 0 | |
|
The Orchard at Airport Road Northampton County |
37 | 3 | 0 | |
|
Wheatfield Village Pike County |
35 | 10 | 2 | |
|
Atlas Mineral & Chemical Berks County |
30 | 2 | 0 | |
|
Mrs Colleens Childcare Susquehanna County |
30 | 3 | 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 | |
|
Doe Run Mobile Home Park Chester County |
29 | 7 | 0 | |
|
Anchor Presbyterian Church Bucks County |
25 | 4 | 0 | |
|
Far Away Auburn Schuylkill County |
25 | 10 | 3 | |
|
Hazleton Area Water CO Luzerne County |
25 | 4 | 0 | |
|
High Spring Water Lancaster County |
25 | 3 | 0 | |
|
Indian Trail Spring Dauphin County |
25 | 6 | 0 | |
|
Overpeck MHP Wyoming County |
25 | 9 | 4 | |
|
Vogel Farm Spring Water CO Carbon County |
25 | 6 | 0 | |
|
White Haven Mountain Springs Luzerne County |
25 | 6 | 2 | |
|
Ridgebury Mobile Manor Bradford County |
23 | 7 | 0 | |
|
Hellers Mobile Home Park Columbia County |
21 | 9 | 2 | |
|
Kipps Run Mobile Court Northumberland County |
19 | 3 | 1 |
About this data
A system is counted once if any of its violations in the past three years involved 1,1-Dichloroethylene, including monitoring and reporting lapses. Rules violated and status in the table are for the whole system, not 1,1-Dichloroethylene 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.