trans-1,2-Dichloroethylene
City of Pocatello
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 | 9 | 0 | ND |
| 2019 | ND | 16 | 0 | ND |
| 2020 | ND | 8 | 0 | ND |
| 2021 | ND | 8 | 0 | ND |
| 2022 | ND | 15 | 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 |
|---|---|---|
| 2018-05-02 | VI80502301 | ND |
| 2018-09-26 | VI80927602 | ND |
| 2018-09-26 | VI80927601 | ND |
| 2018-09-26 | VI80927608 | ND |
| 2018-09-26 | VI80927607 | ND |
| 2018-09-26 | VI80927606 | ND |
| 2018-09-26 | VI80927605 | ND |
| 2018-09-26 | VI80927604 | ND |
| 2018-09-26 | VI80927603 | ND |
| 2019-10-08 | VI91008806 | ND |
| 2019-10-08 | VI91009208 | ND |
| 2019-10-08 | VI91009207 | ND |
| 2019-10-08 | VI91009206 | ND |
| 2019-10-08 | VI91009205 | ND |
| 2019-10-08 | VI91009204 | ND |
| 2019-10-08 | VI91009203 | ND |
| 2019-10-08 | VI91009202 | ND |
| 2019-10-08 | VI91009201 | ND |
| 2019-10-08 | VI91008808 | ND |
| 2019-10-08 | VI91008807 | ND |
| 2019-10-08 | VI91008805 | ND |
| 2019-10-08 | VI91008804 | ND |
| 2019-10-08 | VI91008803 | ND |
| 2019-10-08 | VI91008802 | ND |
| 2019-10-08 | VI91008801 | ND |
| 2020-05-11 | VI00507315 | ND |
| 2020-05-11 | VI00507314 | ND |
| 2020-05-11 | VI00507313 | ND |
| 2020-05-11 | VI00507309 | ND |
| 2020-05-11 | VI00507306 | ND |
| 2020-05-11 | VI00507304 | ND |
| 2020-05-11 | VI00507303 | ND |
| 2020-05-11 | VI00507308 | ND |
| 2021-08-10 | VI10813507 | ND |
| 2021-08-10 | VI10813504 | ND |
| 2021-08-10 | VI10813505 | ND |
| 2021-08-10 | VI10813501 | ND |
| 2021-08-10 | VI10813502 | ND |
| 2021-08-10 | VI10813503 | ND |
| 2021-08-10 | VI10813506 | ND |
| 2021-08-10 | VI10813508 | ND |
| 2022-10-12 | VI21012906 | ND |
| 2022-10-12 | VI21013001 | ND |
| 2022-10-12 | VI21012802 | ND |
| 2022-10-12 | VI21012801 | ND |
| 2022-10-12 | VI21012912 | ND |
| 2022-10-12 | VI21012911 | ND |
| 2022-10-12 | VI21012910 | ND |
| 2022-10-12 | VI21012909 | ND |
| 2022-10-12 | VI21012908 | ND |
| 2022-10-12 | VI21012907 | ND |
| 2022-10-12 | VI21012905 | ND |
| 2022-10-12 | VI21012904 | ND |
| 2022-10-12 | VI21012903 | ND |
| 2022-10-12 | VI21012902 | ND |
| 2022-10-12 | VI21012901 | ND |
| 2023-10-11 | VI31012801 | ND |
| 2023-10-11 | VI31012802 | ND |
| 2023-10-11 | VI31012803 | ND |
| 2023-10-11 | VI31012805 | ND |
| 2023-10-11 | VI31012806 | ND |
| 2023-10-11 | VI31012807 | ND |
| 2023-10-11 | VI31012808 | ND |
| 2023-10-11 | VI31012809 | ND |