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National Drinking Water Database

1,1-Dichloroethane in Massachusetts

1,1-Dichloroethane is used in industrial chemical synthesis, as a solvent for plastics, paint, varnish, and finish removers and as an insecticide/fumigant.

The Most Polluted Communities in Massachusetts

10 water utilities reported detecting 1,1-Dichloroethane in tap water since 2004, according to EWG's analysis of water quality data supplied by state water agencies

Ranked by highest average 1,1-Dichloroethane level

RankSystem Population Served Positive test results of total reported tests Average Level
1Grafton Water District
Grafton, MA
9,80013 of 252.63 ppb
(0 to 17.5 ppb)
2Burlington Water Dept
Burlington, MA
23,3019 of 101.23 ppb
(0 to 1.9 ppb)
3Hudson Water Supply
Hudson, MA
16,80012 of 120.8 ppb
(0.28 to 1.2 ppb)
4Spencer Water Department
Spencer, MA
6,6752 of 50.26 ppb
(0 to 0.8 ppb)
5Witches Brook Water Company
Townsend, MA
1,9841 of 30.2 ppb
(0 to 0.6 ppb)
6Barnstable Water Company (Hyannis)
Barnstable, MA
34,0003 of 70.19 ppb
(0 to 0.49 ppb)
7Reading Water Dept.
Reading, MA
23,6933 of 100.18 ppb
(0 to 0.81 ppb)
8Medfield Water Dept.
13,0811 of 70.09 ppb
(0 to 0.6 ppb)
9Auburn Water District
Auburn, MA
9,9002 of 50.08 ppb
(0 to 0.31 ppb)
10Acton Water Supply District
Acton, MA
19,3051 of 90.05 ppb
(0 to 0.45 ppb)

Health Based Limits for 1,1-Dichloroethane

California Public Health GoalsDefined by the State of California Office of Environmental Health Hazard Assessment (OEHHA) as the level of contaminant that is allowed in drinking water. For acutely toxic substances, levels are set at which scientific evidence indicates that no known or anticipated adverse effects on health will occur, plus an adequate margin-of safety. PHGs for carcinogens or other substances which can cause chronic disease shall be based solely on health effects without regard to cost impacts and shall be set at levels which OEHHA has determined do not pose any significant risk to health.3 ppb

Violation Summary for 1,1-Dichloroethane in Massachusetts

There are no violations reported for this contaminant in Massachusetts