trans-1,2-Dichloroethylene
Kensington Place S/d
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 | 3 | 0 | ND |
2015 | ND | 1 | 0 | ND |
2016 | ND | 5 | 0 | ND |
2017 | ND | 1 | 0 | ND |
2018 | ND | 1 | 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 |
---|---|---|
2014-03-20 | 781176V | ND |
2014-06-03 | 92203726002VOC | ND |
2014-09-10 | 92216781002VOC | ND |
2015-03-11 | ND | |
2016-03-22 | 8220-032216-E01V | ND |
2016-06-16 | 8220-061616-E01V | ND |
2016-07-14 | 8220-071416-E01V | ND |
2016-09-08 | 8220-090816-E01V | ND |
2016-11-02 | 8220-110216-E01V | ND |
2017-03-02 | 8220-030217-E01V | ND |
2018-02-13 | 8220-021318-E01V | ND |
2019-10-09 | 5236-19 | ND |