trans-1,2-Dichloroethylene
Laurel Village Mobile Home Park
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 | 4 | 0 | ND |
| 2019 | ND | 4 | 0 | ND |
| 2020 | ND | 4 | 0 | ND |
| 2021 | ND | 4 | 0 | ND |
| 2022 | ND | 8 | 0 | ND |
| 2023 | ND | 7 | 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 |
|---|---|---|
| 2018-12-06 | S816920 | ND |
| 2018-12-06 | S816921 | ND |
| 2018-12-06 | S816924 | ND |
| 2018-12-06 | S816918 | ND |
| 2019-12-18 | S932357 | ND |
| 2019-12-18 | S932358 | ND |
| 2019-12-18 | S932360 | ND |
| 2019-12-18 | S932362 | ND |
| 2020-02-24 | S932614 | ND |
| 2020-02-24 | S932618 | ND |
| 2020-02-24 | S943432 | ND |
| 2020-02-24 | S943435 | ND |
| 2021-12-02 | S1148688 | ND |
| 2021-12-16 | S1159484 | ND |
| 2021-12-16 | S1159200 | ND |
| 2021-12-16 | S1159204 | ND |
| 2022-08-19 | S1216747 | ND |
| 2022-08-19 | S1216749 | ND |
| 2022-08-19 | S1216745 | ND |
| 2022-08-19 | S1216743 | ND |
| 2022-09-29 | S1230895 | ND |
| 2022-09-29 | S1230893 | ND |
| 2022-09-29 | S1230891 | ND |
| 2022-09-29 | S1230889 | ND |
| 2023-01-31 | S1260859 | ND |
| 2023-01-31 | S1260927 | ND |
| 2023-01-31 | S1261011 | ND |
| 2023-01-31 | S1261013 | ND |
| 2023-03-08 | S1272406 | ND |
| 2023-03-08 | S1272410 | ND |
| 2023-03-08 | S1272412 | ND |