trans-1,2-Dichloroethylene
City of Grandview
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 | N/A | 0 | 0 | N/A |
| 2019 | ND | 2 | 0 | ND |
| 2020 | N/A | 0 | 0 | N/A |
| 2021 | ND | 9 | 0 | ND |
| 2022 | ND | 4 | 0 | ND |
| 2023 | N/A | 0 | 0 | N/A |
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 |
|---|---|---|
| 2019-03-19 | ND | |
| 2019-04-23 | ND | |
| 2021-04-13 | 4102290 | ND |
| 2021-04-13 | 4102292 | ND |
| 2021-04-13 | 4102010 | ND |
| 2021-04-13 | 4102032 | ND |
| 2021-04-13 | 4102293 | ND |
| 2021-04-13 | 4102289 | ND |
| 2021-04-13 | 4102291 | ND |
| 2021-09-21 | 4183352 | ND |
| 2021-12-13 | 4217915 | ND |
| 2022-03-21 | 4263833 | ND |
| 2022-06-07 | 4298851 | ND |
| 2022-09-20 | 4347786 | ND |
| 2022-10-24 | 4364692 | ND |