trans-1,2-Dichloroethylene
Vernon Village Inc.
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 | 8 | 0 | ND |
| 2019 | ND | 8 | 0 | ND |
| 2020 | ND | 8 | 0 | ND |
| 2021 | ND | 8 | 0 | ND |
| 2022 | ND | 8 | 0 | ND |
| 2023 | ND | 8 | 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 |
|---|---|---|
| 2018-01-12 | BZ72200VOC1 | ND |
| 2018-01-12 | BZ72199VOC1 | ND |
| 2018-04-12 | CA18734VOC1 | ND |
| 2018-04-12 | CA18733VOC1 | ND |
| 2018-07-25 | CA97190 | ND |
| 2018-07-25 | CA97191 | ND |
| 2018-10-16 | CB72178 | ND |
| 2018-10-16 | CB72179 | ND |
| 2019-03-22 | CC73403 | ND |
| 2019-03-22 | CC73404 | ND |
| 2019-05-07 | CD07904 | ND |
| 2019-05-07 | CD07905 | ND |
| 2019-08-06 | CD78425 | ND |
| 2019-08-06 | CD78424 | ND |
| 2019-10-28 | CE49240 | ND |
| 2019-10-28 | CE49241 | ND |
| 2020-01-14 | CF11629 | ND |
| 2020-01-14 | CF11630 | ND |
| 2020-04-17 | CF75187 | ND |
| 2020-04-17 | CF75188 | ND |
| 2020-08-18 | CG55356 | ND |
| 2020-08-18 | CG55242 | ND |
| 2020-11-16 | CH14954 | ND |
| 2020-11-16 | CH14955 | ND |
| 2021-01-26 | CH52620 | ND |
| 2021-01-26 | CH52621 | ND |
| 2021-04-23 | CI14718 | ND |
| 2021-04-23 | CI14719 | ND |
| 2021-08-27 | CJ15585 | ND |
| 2021-08-27 | CJ15586 | ND |
| 2021-10-13 | CJ54506 | ND |
| 2021-10-13 | CJ54507 | ND |
| 2022-01-12 | CK14253 | ND |
| 2022-01-12 | CK14254 | ND |
| 2022-04-19 | CL11439 | ND |
| 2022-04-19 | CL11440 | ND |
| 2022-07-14 | CL77398 | ND |
| 2022-07-14 | CL77399 | ND |
| 2022-10-21 | CM67688 | ND |
| 2022-10-21 | CM67689 | ND |
| 2023-01-12 | CN22175 | ND |
| 2023-01-12 | CN22176 | ND |
| 2023-04-06 | CN77426 | ND |
| 2023-04-06 | CN77427 | ND |
| 2023-07-13 | CO49631 | ND |
| 2023-07-13 | CO49632 | ND |
| 2023-10-23 | CP31310 | ND |
| 2023-10-23 | CP31311 | ND |