trans-1,2-Dichloroethylene
Deerwood Subdivision
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 | N/A | 0 | 0 | N/A |
2016 | N/A | 0 | 0 | N/A |
2017 | N/A | 0 | 0 | N/A |
2018 | ND | 12 | 0 | ND |
2019 | ND | 13 | 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 |
---|---|---|
2018-02-26 | LLH67791 | ND |
2018-02-26 | LLH67793 | ND |
2018-02-26 | LLH67792 | ND |
2018-05-10 | LLH79900 | ND |
2018-05-10 | LLH79901 | ND |
2018-05-10 | LLH79909 | ND |
2018-08-15 | LLH99376 | ND |
2018-08-15 | LLH99363 | ND |
2018-08-15 | LLH99375 | ND |
2018-10-31 | LLI13469 | ND |
2018-10-31 | LLI13468 | ND |
2018-10-31 | LLI13480 | ND |
2019-02-21 | LLI26628 | ND |
2019-02-21 | LLI26627 | ND |
2019-02-21 | LLI26625 | ND |
2019-05-31 | LLI40256 | ND |
2019-05-31 | LLI40265 | ND |
2019-05-31 | LLI40266 | ND |
2019-09-09 | LLI62406 | ND |
2019-09-09 | LLI62407 | ND |
2019-09-09 | LLI62404 | ND |
2019-10-31 | LLI74079 | ND |
2019-10-31 | LLI74074 | ND |
2019-10-31 | LLI74073 | ND |
2019-12-17 | LLI84105 | ND |