cis-1,2-Dichloroethylene
Horn Lake Water Association
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 | ND | 1 | 0 | ND |
| 2015 | ND | 1 | 0 | ND |
| 2016 | N/A | 0 | 0 | N/A |
| 2017 | ND | 1 | 0 | ND |
| 2018 | ND | 4 | 0 | ND |
| 2019 | ND | 3 | 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 |
|---|---|---|
| 2014-06-10 | 140611-008VO | ND |
| 2015-06-23 | 150624-008VO | ND |
| 2017-04-11 | 170412-004VO | ND |
| 2018-01-24 | 180125-019VO | ND |
| 2018-04-24 | 180425-002VO | ND |
| 2018-08-08 | 180809-008VO | ND |
| 2018-10-10 | 181011-004VO | ND |
| 2019-02-19 | 190220-018VO | ND |
| 2019-04-23 | 190424-015VO | ND |
| 2019-08-07 | 190808-015VO | ND |