trans-1,2-Dichloroethylene
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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 | 34 | 0 | ND |
2015 | ND | 4 | 0 | ND |
2016 | ND | 1 | 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 |
---|---|---|
2014-07-30 | 14-11302 | ND |
2014-07-30 | 14-11303 | ND |
2014-08-12 | 14-12048 | ND |
2014-08-12 | 14-12045 | ND |
2014-08-12 | 14-12049 | ND |
2014-08-12 | 14-12046 | ND |
2014-08-12 | 14-12050 | ND |
2014-08-12 | 14-12044 | ND |
2014-08-12 | 14-12047 | ND |
2014-08-25 | 14-12765 | ND |
2014-08-25 | 14-12766 | ND |
2014-08-25 | 14-12767 | ND |
2014-08-25 | 14-12768 | ND |
2014-09-08 | 14-13540 | ND |
2014-09-08 | 14-13538 | ND |
2014-09-08 | 14-13539 | ND |
2014-09-08 | 14-13537 | ND |
2014-09-22 | 14-14395 | ND |
2014-09-22 | 14-14393 | ND |
2014-09-22 | 14-14394 | ND |
2014-09-22 | 14-14392 | ND |
2014-10-10 | 14-15405 | ND |
2014-10-10 | 14-15403 | ND |
2014-10-10 | 14-15406 | ND |
2014-10-10 | 14-15404 | ND |
2014-10-10 | 14-15402 | ND |
2014-10-20 | 14-15917 | ND |
2014-10-20 | 14-15915 | ND |
2014-10-20 | 14-15916 | ND |
2014-10-20 | 14-15918 | ND |
2014-10-20 | 14-15914 | ND |
2014-10-24 | 14-16212 | ND |
2014-10-24 | 14-15213 | ND |
2014-10-24 | 14-16213 | ND |
2015-02-15 | 460013-JAMES R. | ND |
2015-04-23 | 460013-JAMES R. | ND |
2015-07-23 | 460013-JAMES R. | ND |
2015-10-22 | 460013-JAMES R. | ND |
2016-01-28 | 16-01344 | ND |
2017-01-13 | 17-00704-VOC | ND |
2018-01-23 | 18-01369 | ND |
2019-01-24 | 19-01404 | ND |