trans-1,2-Dichloroethylene
Bremen 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 |
---|---|---|---|---|
2013 | N/A | 0 | 0 | N/A |
2014 | ND | 1 | 0 | ND |
2015 | N/A | 0 | 0 | N/A |
2016 | N/A | 0 | 0 | N/A |
2017 | ND | 3 | 0 | ND |
2018 | ND | 4 | 0 | ND |
2019 | ND | 1 | 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 | Lab ID | Result |
---|---|---|
2014-08-25 | 324045RV-1403 | ND |
2017-07-05 | 17010673003RV-17 | ND |
2017-09-06 | 17014623003RV-17 | ND |
2017-10-02 | 17016333004RV-17 | ND |
2018-05-01 | 18006796001RV-18 | ND |
2018-07-24 | 18011673001RV-18 | ND |
2018-07-24 | 18011674001RV-18 | ND |
2018-11-06 | 18017827001RV-18 | ND |
2019-08-20 | 19012696001RV-19 | ND |