trans-1,2-Dichloroethylene
Golden State Water Company - Ojai
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.
Samples
Samples exceeding legal limit (MCL)
Samples exceeding
health guidelines
Testing results - average by year
Year | Average result | Samples taken | Detections | Range of results |
---|---|---|---|---|
2014 | ND | 9 | 0 | ND |
2015 | ND | 1 | 0 | ND |
2016 | N/A | 0 | 0 | N/A |
2017 | ND | 6 | 0 | ND |
2018 | N/A | 0 | 0 | N/A |
2019 | N/A | 0 | 0 | N/A |
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 |
---|---|---|
2014-01-22 | 2706-002-0915 | ND |
2014-01-22 | 2706-003-0845 | ND |
2014-01-22 | 2706-004-0855 | ND |
2014-01-22 | 2706-007-0925 | ND |
2014-01-22 | 2706-010-0905 | ND |
2014-01-22 | 2706-012-1150 | ND |
2014-01-22 | 2706-013-1055 | ND |
2014-02-05 | 2706-015-0930 | ND |
2014-05-07 | 2706-015-0845 | ND |
2015-01-21 | 2706-015-0945 | ND |
2017-02-14 | 9590-002-1005 | ND |
2017-02-14 | 9590-003-1048 | ND |
2017-02-14 | 9590-004-0950 | ND |
2017-02-14 | 9590-007-1025 | ND |
2017-02-14 | 9590-010-1015 | ND |
2017-02-14 | 9590-015-0944 | ND |