cis-1,2-Dichloroethylene
Lafourche Water District 1
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.
14
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 |
|---|---|---|---|---|
| 2018 | ND | 2 | 0 | ND |
| 2019 | ND | 4 | 0 | ND |
| 2020 | ND | 2 | 0 | ND |
| 2021 | ND | 2 | 0 | ND |
| 2022 | ND | 2 | 0 | ND |
| 2023 | ND | 2 | 0 | ND |
ppb = parts per billion
State, National, and Health Guidelines for Drinking Water
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 |
|---|---|---|
| 2018-01-25 | 35370415009 | ND |
| 2018-01-25 | 35370415009 | ND |
| 2019-01-29 | 35445082001 | ND |
| 2019-01-29 | 35445082001 | ND |
| 2019-02-18 | 35449374001 | ND |
| 2019-02-18 | 35449374001 | ND |
| 2020-01-22 | 35526013001 | ND |
| 2020-01-22 | 35526013002 | ND |
| 2021-03-11 | 35619276001 | ND |
| 2021-03-11 | 35619285001 | ND |
| 2022-03-02 | 35701429001 | ND |
| 2022-03-02 | 35701432001 | ND |
| 2023-02-27 | 35782418001 | ND |
| 2023-03-27 | 35789305001 | ND |