1,1-Dichloroethylene
Maynard DPW, Water Division
1,1-Dichloroethylene is used for plastics production. It damages DNA and causes cancer in laboratory animal studies.
Testing results - average by year
Year | Average result | Samples taken | Detections | Range of results |
---|---|---|---|---|
2014 | ND | 6 | 0 | ND |
2015 | ND | 6 | 0 | ND |
2016 | ND | 6 | 0 | ND |
2017 | ND | 10 | 0 | ND |
2018 | ND | 5 | 0 | ND |
2019 | ND | 6 | 0 | ND |
ppb = parts per billion
State and national drinking water standards and health guidelines
EPA Maximum Contaminant
Level (MCL) 7 ppb
The legal limit for 1,1-dichloroethylene, established in 1987, was based on a toxicity study conducted in laboratory animals in the 1980s.
ppb = parts per billion
All test results
Date | Result |
---|---|
2014-05-28 | ND |
2014-05-28 | ND |
2014-05-28 | ND |
2014-05-28 | ND |
2014-05-28 | ND |
2014-06-18 | ND |
2015-09-16 | ND |
2015-09-16 | ND |
2015-09-16 | ND |
2015-09-16 | ND |
2015-09-16 | ND |
2015-09-16 | ND |
2016-06-16 | ND |
2016-06-16 | ND |
2016-06-16 | ND |
2016-06-16 | ND |
2016-06-20 | ND |
2016-06-29 | ND |
2017-05-25 | ND |
2017-05-25 | ND |
2017-05-25 | ND |
2017-05-25 | ND |
2017-05-25 | ND |
2017-05-25 | ND |
2017-07-17 | ND |
2017-07-17 | ND |
2017-07-17 | ND |
2017-07-17 | ND |
2018-05-08 | ND |
2018-05-08 | ND |
2018-05-08 | ND |
2018-05-08 | ND |
2018-05-08 | ND |
2019-04-22 | ND |
2019-04-22 | ND |
2019-04-22 | ND |
2019-04-22 | ND |
2019-04-22 | ND |
2019-04-22 | ND |