cis-1,2-Dichloroethylene
Pierre
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.
16
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 |
|---|---|---|---|---|
| 2014 | N/A | 0 | 0 | N/A |
| 2015 | N/A | 0 | 0 | N/A |
| 2016 | ND | 1 | 0 | ND |
| 2017 | 0.422 ppb | 13 | 1 | ND - 0.844 ppb |
| 2018 | ND | 1 | 0 | ND |
| 2019 | 0.740 ppb | 1 | 1 | 0.740 ppb |
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 | Result |
|---|---|
| 2016-05-04 | ND |
| 2017-05-09 | ND |
| 2017-05-09 | ND |
| 2017-05-09 | ND |
| 2017-05-09 | ND |
| 2017-05-09 | ND |
| 2017-05-09 | ND |
| 2017-05-09 | 0.422 ppb* |
| 2017-05-10 | ND |
| 2017-05-10 | ND |
| 2017-05-10 | ND |
| 2017-05-10 | ND |
| 2017-05-10 | ND |
| 2017-05-10 | ND |
| 2018-06-05 | ND |
| 2019-05-21 | 0.740 ppb |
* Sample result is taken from the system's CCR report.