trans-1,2-Dichloroethylene
Lemoyne Water System Inc.
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 | 2 | 0 | ND |
2015 | ND | 1 | 0 | ND |
2016 | ND | 3 | 0 | ND |
2017 | ND | 3 | 0 | ND |
2018 | ND | 2 | 0 | ND |
2019 | ND | 3 | 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 |
---|---|---|
2014-09-09 | 348574 | ND |
2014-11-13 | 400-98396-1 | ND |
2015-10-06 | 400-111928-1 | ND |
2016-03-08 | 400-118496-1 | ND |
2016-07-11 | 400-124227-3 | ND |
2016-10-12 | 400-128541-1 | ND |
2017-09-13 | 400-143216-1 | ND |
2017-11-07 | 400-145558-1 | ND |
2017-11-07 | 400-14558-1 | ND |
2018-09-20 | 400-159409-1 | ND |
2018-12-03 | 400-162889-1 | ND |
2019-07-10 | 400-172868-1 | ND |
2019-09-26 | 400-176985-1 | ND |
2019-10-30 | 400-178857-1 | ND |