1,1-Dichloroethylene
Dedham Westwood Water District
1,1-Dichloroethylene is used for plastics production. It damages DNA and causes cancer in laboratory animal studies.
35
Samples
0
Samples exceeding legal limit (MCL)
0
Samples exceeding
health guidelines
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 | 6 | 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 |
---|---|
2014-01-07 | ND |
2014-01-07 | ND |
2014-04-08 | ND |
2014-07-22 | ND |
2014-07-22 | ND |
2014-10-22 | ND |
2015-03-11 | ND |
2015-03-11 | ND |
2015-04-07 | ND |
2015-07-28 | ND |
2015-07-29 | ND |
2015-11-17 | ND |
2016-01-05 | ND |
2016-01-05 | ND |
2016-04-05 | ND |
2016-07-12 | ND |
2016-07-12 | ND |
2016-10-04 | ND |
2017-01-04 | ND |
2017-01-04 | ND |
2017-04-04 | ND |
2017-08-04 | ND |
2017-08-04 | ND |
2017-10-19 | ND |
2018-01-24 | ND |
2018-01-24 | ND |
2018-04-02 | ND |
2018-07-11 | ND |
2018-10-26 | ND |
2019-01-30 | ND |
2019-01-30 | ND |
2019-05-16 | ND |
2019-08-28 | ND |
2019-08-28 | ND |
2019-10-23 | ND |