trans-1,2-Dichloroethylene
Cape Fear Public Utility Authority - Wilmington
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 |
|---|---|---|---|---|
| 2013 | N/A | 0 | 0 | N/A |
| 2014 | ND | 1 | 0 | ND |
| 2015 | ND | 4 | 0 | ND |
| 2016 | ND | 3 | 0 | ND |
| 2017 | ND | 1 | 0 | ND |
| 2018 | ND | 4 | 0 | ND |
| 2019 | ND | 7 | 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 |
|---|---|---|
| 2014-07-09 | 201407110116 | ND |
| 2015-02-12 | ND | |
| 2015-07-08 | ND | |
| 2015-08-17 | ND | |
| 2015-08-17 | ND | |
| 2016-07-14 | 3494020 | ND |
| 2016-11-01 | 3577052 | ND |
| 2016-11-01 | 3577064 | ND |
| 2017-07-12 | 3731482 | ND |
| 2018-02-13 | 3871793 | ND |
| 2018-07-10 | 92391576001VOC | ND |
| 2018-09-27 | 4072029 | ND |
| 2018-11-07 | 4114197 | ND |
| 2019-07-01 | 4341108 | ND |
| 2019-07-01 | 4341126 | ND |
| 2019-07-02 | 4343222 | ND |
| 2019-09-16 | 4424393 | ND |
| 2019-10-01 | 4443199 | ND |
| 2019-10-01 | 4443213 | ND |
| 2019-10-01 | 4441905 | ND |