trans-1,2-Dichloroethylene
Schuylkill County. Municipal Authority
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 | 4 | 0 | ND |
| 2015 | ND | 4 | 0 | ND |
| 2016 | ND | 4 | 0 | ND |
| 2017 | ND | 4 | 0 | ND |
| 2018 | ND | 4 | 0 | ND |
| 2019 | ND | 4 | 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 |
|---|---|---|
| 2014-07-22 | L5170812-2 | ND |
| 2014-07-22 | L5170812-3 | ND |
| 2014-07-22 | L5170812-4 | ND |
| 2014-07-22 | L5170812-1 | ND |
| 2015-07-21 | 13055216 | ND |
| 2015-07-21 | 13055270 | ND |
| 2015-07-21 | 13055324 | ND |
| 2015-07-21 | 13055378 | ND |
| 2016-07-19 | 14793948 | ND |
| 2016-07-19 | 14793838 | ND |
| 2016-07-19 | 14793893 | ND |
| 2016-07-25 | 14627384 | ND |
| 2017-07-11 | 16465744 | ND |
| 2017-07-11 | 16465764 | ND |
| 2017-07-11 | 16465804 | ND |
| 2017-07-11 | 16465784 | ND |
| 2018-07-17 | 8020362-01 | ND |
| 2018-07-17 | 8020365-01 | ND |
| 2018-07-17 | 8020364-01 | ND |
| 2018-07-17 | 8020366-01 | ND |
| 2019-07-16 | 9024930-01RE | ND |
| 2019-07-16 | 9024930-02 | ND |
| 2019-07-16 | 9024930-03 | ND |
| 2019-07-16 | 9024930-04 | ND |