cis-1,2-Dichloroethylene
Wayland Water Department
1,2-Dichloroethylene, a neurotoxic solvent, exists in two different forms: trans-1,2-dichloroethylene and cis-1,2-dichloroethylene. A mixture of the two forms is used to manufacture other solvents and chemical products.
Testing results - average by year
Year | Average result | Samples taken | Detections | Range of results |
---|---|---|---|---|
2014 | ND | 7 | 0 | ND |
2015 | ND | 8 | 0 | ND |
2016 | ND | 8 | 0 | ND |
2017 | ND | 8 | 0 | ND |
2018 | ND | 8 | 0 | ND |
2019 | ND | 8 | 0 | ND |
ppb = parts per billion
State and national drinking water standards and health guidelines
EPA Maximum Contaminant
Level (MCL) 70 ppb
The legal limit for cis-1,2-dichloroethylene, established in 1991, was based on a toxicity study in laboratory animals conducted in the 1980s.
ppb = parts per billion
All test results
Date | Result |
---|---|
2014-04-01 | ND |
2014-07-01 | ND |
2014-07-01 | ND |
2014-07-01 | ND |
2014-07-01 | ND |
2014-07-01 | ND |
2014-10-07 | ND |
2015-01-06 | ND |
2015-04-14 | ND |
2015-07-07 | ND |
2015-07-07 | ND |
2015-07-07 | ND |
2015-07-07 | ND |
2015-07-07 | ND |
2015-10-06 | ND |
2016-01-19 | ND |
2016-04-05 | ND |
2016-07-05 | ND |
2016-07-05 | ND |
2016-07-05 | ND |
2016-07-05 | ND |
2016-07-05 | ND |
2016-10-04 | ND |
2017-01-03 | ND |
2017-04-04 | ND |
2017-07-05 | ND |
2017-07-05 | ND |
2017-07-05 | ND |
2017-07-05 | ND |
2017-07-05 | ND |
2017-10-03 | ND |
2018-01-02 | ND |
2018-04-03 | ND |
2018-07-10 | ND |
2018-07-10 | ND |
2018-07-10 | ND |
2018-07-10 | ND |
2018-07-10 | ND |
2018-10-02 | ND |
2019-01-08 | ND |
2019-04-09 | ND |
2019-07-02 | ND |
2019-07-02 | ND |
2019-07-02 | ND |
2019-07-02 | ND |
2019-07-02 | ND |
2019-10-07 | ND |