cis-1,2-Dichloroethylene
Harkers Island Sanitary District
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.
10
Samples
0
Samples exceeding legal limit (MCL)
0
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 | N/A | 0 | 0 | N/A |
| 2015 | ND | 3 | 0 | ND |
| 2016 | ND | 4 | 0 | ND |
| 2017 | ND | 1 | 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
EPA Maximum Contaminant
Level (MCL) 70 ppb
The legal limit for cis-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 |
|---|---|---|
| 2015-02-02 | ND | |
| 2015-05-06 | ND | |
| 2015-07-29 | ND | |
| 2016-03-08 | 92289442001VOC | ND |
| 2016-06-28 | 92303221001VOC | ND |
| 2016-08-03 | 92307604001VOC | ND |
| 2016-11-17 | 92320266001VOC | ND |
| 2017-02-08 | 92329413001VOC | ND |
| 2018-02-06 | 92372517001VOC | ND |
| 2019-01-07 | 8679-010719-E01V | ND |