trans-1,2-Dichloroethylene
Keenesburg, Town of
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 | 5 | 0 | ND |
2015 | ND | 5 | 0 | ND |
2016 | ND | 4 | 0 | ND |
2017 | ND | 5 | 0 | ND |
2018 | ND | 4 | 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 | Result |
---|---|
2014-03-20 | ND |
2014-03-27 | ND |
2014-05-08 | ND |
2014-09-25 | ND |
2014-10-23 | ND |
2015-01-22 | ND |
2015-02-19 | ND |
2015-04-14 | ND |
2015-07-28 | ND |
2015-10-13 | ND |
2016-01-12 | ND |
2016-04-19 | ND |
2016-07-19 | ND |
2016-10-11 | ND |
2017-01-10 | ND |
2017-02-09 | ND |
2017-04-11 | ND |
2017-07-18 | ND |
2017-10-19 | ND |
2018-01-09 | ND |
2018-04-10 | ND |
2018-07-17 | ND |
2018-10-09 | ND |
2019-01-15 | ND |
2019-04-16 | ND |
2019-10-15 | ND |