trans-1,2-Dichloroethylene
Jefferson Parish
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 |
|---|---|---|---|---|
| 2018 | ND | 6 | 0 | ND |
| 2019 | ND | 12 | 0 | ND |
| 2020 | ND | 3 | 0 | ND |
| 2021 | ND | 6 | 0 | ND |
| 2022 | ND | 3 | 0 | ND |
| 2023 | ND | 3 | 0 | ND |
ppb = parts per billion
State, National, and Health Guidelines for Drinking Water
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 |
|---|---|---|
| 2018-03-15 | 35380393003 | ND |
| 2018-03-15 | 35380393002 | ND |
| 2018-03-15 | 35380393001 | ND |
| 2018-03-15 | 35380393002 | ND |
| 2018-03-15 | 35380393003 | ND |
| 2018-03-15 | 35380393001 | ND |
| 2019-02-27 | 35451088001 | ND |
| 2019-02-27 | 35451093001 | ND |
| 2019-02-27 | 35451094001 | ND |
| 2019-02-27 | 35451094001 | ND |
| 2019-02-27 | 35451093001 | ND |
| 2019-02-27 | 35451088001 | ND |
| 2019-09-05 | 35495383002 | ND |
| 2019-09-05 | 35495383002 | ND |
| 2019-09-05 | 35495383001 | ND |
| 2019-09-05 | 35495383003 | ND |
| 2019-09-05 | 35495383001 | ND |
| 2019-09-05 | 35495383003 | ND |
| 2020-03-26 | 35540013001 | ND |
| 2020-03-26 | 35540015001 | ND |
| 2020-03-26 | 35540021001 | ND |
| 2021-01-28 | 35608086001 | ND |
| 2021-01-28 | 35608082001 | ND |
| 2021-01-28 | 35608080001 | ND |
| 2021-03-10 | 35618309001 | ND |
| 2021-03-10 | 35618308001 | ND |
| 2021-03-10 | 35618306001 | ND |
| 2022-01-25 | 35692989001 | ND |
| 2022-01-25 | 35692990001 | ND |
| 2022-01-25 | 35692991001 | ND |
| 2023-01-11 | 35772258001 | ND |
| 2023-01-11 | 35772259001 | ND |
| 2023-01-11 | 35772260001 | ND |