trans-1,2-Dichloroethylene
Magna 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 | N/A | 0 | 0 | N/A |
2015 | N/A | 0 | 0 | N/A |
2016 | ND | 4 | 0 | ND |
2017 | ND | 9 | 0 | ND |
2018 | ND | 10 | 0 | ND |
2019 | ND | 8 | 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 |
---|---|
2016-01-26 | ND |
2016-08-02 | ND |
2016-08-02 | ND |
2016-08-02 | ND |
2017-02-16 | ND |
2017-02-27 | ND |
2017-05-10 | ND |
2017-05-10 | ND |
2017-07-11 | ND |
2017-08-07 | ND |
2017-08-07 | ND |
2017-11-20 | ND |
2017-11-20 | ND |
2018-06-19 | ND |
2018-06-19 | ND |
2018-07-10 | ND |
2018-07-10 | ND |
2018-09-27 | ND |
2018-09-27 | ND |
2018-11-14 | ND |
2018-11-14 | ND |
2018-12-26 | ND |
2018-12-26 | ND |
2019-03-05 | ND |
2019-03-05 | ND |
2019-06-25 | ND |
2019-06-25 | ND |
2019-09-26 | ND |
2019-09-26 | ND |
2019-12-03 | ND |
2019-12-03 | ND |