trans-1,2-Dichloroethylene
Altura
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 | N/A | 0 | 0 | N/A |
2015 | ND | 2 | 0 | ND |
2016 | ND | 3 | 0 | ND |
2017 | ND | 4 | 0 | ND |
2018 | ND | 2 | 0 | ND |
2019 | ND | 2 | 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 |
---|---|---|
2015-09-23 | 15I1223-01 | ND |
2015-09-23 | 15I1223-02 | ND |
2016-03-15 | 3414997 | ND |
2016-03-15 | 3415005 | ND |
2016-05-04 | 16E0399-01 | ND |
2017-02-02 | 17B0190-01 | ND |
2017-02-02 | 17B0190-02 | ND |
2017-06-06 | 17F0394-01 | ND |
2017-08-31 | 17I0028-01 | ND |
2018-09-24 | 18I1250-02 | ND |
2018-09-24 | 18I1250-03 | ND |
2019-04-29 | 19D2498-01 | ND |
2019-11-25 | 19K1694-01 | ND |