trans-1,2-Dichloroethylene
Sudbury Water District
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 |
---|---|---|---|---|
2013 | N/A | 0 | 0 | N/A |
2014 | ND | 20 | 0 | ND |
2015 | ND | 16 | 0 | ND |
2016 | ND | 13 | 0 | ND |
2017 | ND | 17 | 0 | ND |
2018 | ND | 20 | 0 | ND |
2019 | ND | 19 | 0 | ND |
ppb = parts per billion
State and national drinking water standards and health guidelines
EWG Health Guideline 60 ppb
The EWG Health Guideline of 60 ppb for trans-1,2-dichloroethylene was defined by the California Office of Environmental Health Hazard Assessment as a public health goal, the level of a drinking water contaminant that does not pose a significant health risk. This health guideline protects against harm to internal organs.
EPA Maximum Contaminant
Level (MCL) 100 ppb
The legal limit for trans-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 |
---|---|
2014-01-07 | ND |
2014-01-07 | ND |
2014-01-07 | ND |
2014-01-07 | ND |
2014-05-06 | ND |
2014-05-06 | ND |
2014-05-06 | ND |
2014-05-06 | ND |
2014-07-08 | ND |
2014-07-08 | ND |
2014-07-08 | ND |
2014-07-08 | ND |
2014-07-08 | ND |
2014-07-08 | ND |
2014-07-23 | ND |
2014-07-23 | ND |
2014-10-21 | ND |
2014-10-21 | ND |
2014-10-21 | ND |
2014-10-21 | ND |
2015-01-06 | ND |
2015-01-06 | ND |
2015-01-06 | ND |
2015-01-06 | ND |
2015-04-16 | ND |
2015-04-22 | ND |
2015-04-22 | ND |
2015-04-22 | ND |
2015-04-22 | ND |
2015-07-07 | 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 |
2016-01-05 | ND |
2016-03-15 | ND |
2016-03-15 | ND |
2016-04-06 | ND |
2016-04-06 | ND |
2016-07-12 | ND |
2016-07-12 | ND |
2016-07-12 | ND |
2016-07-12 | ND |
2016-07-12 | ND |
2016-07-12 | ND |
2016-10-04 | ND |
2016-10-04 | ND |
2017-01-10 | ND |
2017-01-10 | ND |
2017-01-10 | ND |
2017-01-10 | ND |
2017-04-04 | ND |
2017-04-04 | ND |
2017-04-04 | ND |
2017-07-11 | ND |
2017-07-11 | ND |
2017-07-11 | ND |
2017-07-11 | ND |
2017-07-11 | ND |
2017-07-11 | ND |
2017-10-03 | ND |
2017-10-03 | ND |
2017-10-03 | ND |
2017-10-03 | ND |
2018-02-06 | ND |
2018-02-06 | ND |
2018-02-06 | ND |
2018-04-10 | ND |
2018-04-10 | ND |
2018-04-10 | ND |
2018-04-10 | ND |
2018-07-10 | ND |
2018-07-10 | ND |
2018-07-10 | ND |
2018-07-10 | ND |
2018-07-10 | ND |
2018-07-10 | ND |
2018-07-10 | ND |
2018-07-10 | ND |
2018-07-10 | ND |
2018-10-10 | ND |
2018-10-10 | ND |
2018-10-10 | ND |
2018-10-10 | ND |
2019-01-08 | ND |
2019-01-08 | ND |
2019-01-08 | ND |
2019-04-02 | ND |
2019-04-02 | ND |
2019-04-02 | ND |
2019-07-02 | ND |
2019-07-02 | ND |
2019-07-02 | ND |
2019-07-02 | ND |
2019-07-02 | ND |
2019-07-02 | ND |
2019-07-02 | ND |
2019-07-02 | ND |
2019-07-16 | ND |
2019-10-08 | ND |
2019-10-08 | ND |
2019-10-08 | ND |
2019-10-08 | ND |