1,1-Dichloroethylene violations in Massachusetts
12 active public water systems in Massachusetts had a 1,1-Dichloroethylene violation in the past three years. What 1,1-Dichloroethylene is and why it matters.
Systems with a 1,1-Dichloroethylene violation
Unresolved first, then largest first| System | Serves | Status | Rules violated, 3 yr | Unresolved |
|---|---|---|---|---|
|
Shrewsbury Water Department Shrewsbury · Worcester County |
38,325 | 1 | 0 | |
|
Brewster Water Department Brewster · Barnstable County |
35,000 | 2 | 0 | |
|
Wannacomet Water Company Nantucket · Nantucket County |
27,703 | 7 | 2 | |
|
Acton Water Supply District Acton · Middlesex County |
21,285 | 2 | 0 | |
|
Camp Ramsbottom Rehoboth · Bristol County |
1,000 | 2 | 0 | |
|
Kings Grant Water CO INC North Attleborough · Bristol County |
434 | 5 | 2 | |
|
Pleasant Water Wellfleet · Barnstable County |
200 | 1 | 0 | |
|
Andrews Farm Water Co.,inc. Boxford · Essex County |
150 | 10 | 6 | |
|
The Village Store Bldg. Boxford · Essex County |
150 | 1 | 0 | |
|
First Congregational Church Plympton · Plymouth County |
55 | 5 | 1 | |
|
Business Park West Condominium Trust Tyngsborough · Middlesex County |
30 | 2 | 0 | |
|
Herring Cove Condominiums Trust Plymouth · Plymouth County |
25 | 3 | 2 |
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 Massachusetts 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.