1,1-Dichloroethylene
Westborough Water Department
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 | 12 | 0 | ND |
2015 | ND | 13 | 0 | ND |
2016 | ND | 12 | 0 | ND |
2017 | ND | 14 | 0 | ND |
2018 | ND | 16 | 0 | ND |
2019 | ND | 3 | 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 |
---|---|
2014-05-21 | ND |
2014-05-21 | ND |
2014-05-21 | ND |
2014-05-21 | ND |
2014-05-21 | ND |
2014-05-21 | ND |
2014-05-21 | ND |
2014-05-21 | ND |
2014-05-21 | ND |
2014-05-21 | ND |
2014-06-27 | ND |
2014-12-16 | ND |
2015-04-17 | ND |
2015-05-12 | ND |
2015-05-12 | ND |
2015-05-12 | ND |
2015-06-02 | ND |
2015-06-02 | ND |
2015-06-02 | ND |
2015-06-02 | ND |
2015-06-02 | ND |
2015-06-04 | ND |
2015-06-04 | ND |
2015-06-04 | ND |
2015-09-17 | ND |
2016-05-12 | ND |
2016-05-12 | ND |
2016-05-12 | ND |
2016-05-12 | ND |
2016-05-13 | ND |
2016-05-13 | ND |
2016-05-13 | ND |
2016-05-25 | ND |
2016-05-25 | ND |
2016-05-25 | ND |
2016-05-25 | ND |
2016-05-25 | ND |
2017-05-02 | ND |
2017-05-02 | ND |
2017-05-02 | ND |
2017-05-02 | ND |
2017-05-02 | ND |
2017-05-02 | ND |
2017-05-02 | ND |
2017-05-16 | ND |
2017-05-16 | ND |
2017-05-16 | ND |
2017-05-16 | ND |
2017-05-16 | ND |
2017-08-31 | ND |
2017-11-14 | ND |
2018-03-01 | ND |
2018-06-20 | ND |
2018-06-20 | ND |
2018-06-20 | ND |
2018-06-20 | ND |
2018-06-20 | ND |
2018-06-20 | ND |
2018-06-20 | ND |
2018-06-20 | ND |
2018-06-26 | ND |
2018-06-26 | ND |
2018-06-26 | ND |
2018-06-26 | ND |
2018-06-26 | ND |
2018-06-26 | ND |
2018-09-12 | ND |
2019-07-24 | ND |
2019-07-24 | ND |
2019-07-24 | ND |