trans-1,2-Dichloroethylene
Manchester Twp Water Utility - Western
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 | 6 | 0 | ND |
| 2015 | ND | 3 | 0 | ND |
| 2016 | ND | 1 | 0 | ND |
| 2017 | ND | 4 | 0 | ND |
| 2018 | ND | 3 | 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 |
|---|---|---|
| 2014-05-06 | 340507016.4 | ND |
| 2014-05-06 | 340507010.4 | ND |
| 2014-05-06 | 340507012.4 | ND |
| 2014-05-06 | 340507013.4 | ND |
| 2014-07-28 | 340728021 | ND |
| 2014-10-21 | 341021048 | ND |
| 2015-03-11 | 350312063 | ND |
| 2015-05-21 | 350522078 | ND |
| 2015-09-01 | 350901015.2 | ND |
| 2016-05-18 | 360518018.2 | ND |
| 2017-04-13 | 370414045 | ND |
| 2017-06-08 | 370609082.3 | ND |
| 2017-06-08 | 370609084.3 | ND |
| 2017-08-03 | 370803042 | ND |
| 2018-05-17 | 380517168.4 | ND |
| 2018-05-17 | 380517171.2 | ND |
| 2018-08-10 | 380810702 | ND |
| 2019-07-24 | 390724724 | ND |