trans-1,2-Dichloroethylene
Waupun Correctional Inst
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 | 0.205 ppb | 2 | 1 | ND - 0.410 ppb |
2015 | 0.290 ppb | 1 | 1 | 0.290 ppb |
2016 | 0.265 ppb | 2 | 1 | ND - 0.530 ppb |
2017 | ND | 2 | 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 |
---|---|---|
2014-03-18 | 775324 | ND |
2014-03-18 | 775320 | 0.410 ppb |
2015-02-25 | 845165 | 0.290 ppb |
2016-09-12 | 944768 | ND |
2016-09-12 | 944766 | 0.530 ppb |
2017-05-03 | 986632 | ND |
2017-05-03 | 986628 | ND |
2018-06-05 | 1058909 | ND |
2019-06-12 | 1127521 | ND |