trans-1,2-Dichloroethylene
Hoosick Falls
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 | 3 | 0 | ND |
| 2020 | ND | 1 | 0 | ND |
| 2021 | ND | 4 | 0 | ND |
| 2022 | ND | 4 | 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 |
|---|---|---|
| 2018-04-16 | JH1802408 | ND |
| 2018-04-16 | JH1802409 | ND |
| 2018-05-29 | JH1803577 | ND |
| 2018-05-29 | JH1803578-POC | ND |
| 2019-12-09 | JH1908733-VOC | ND |
| 2019-12-09 | JH1908734 | ND |
| 2019-12-09 | JH1908732 | ND |
| 2020-08-13 | L2032972 | ND |
| 2021-03-16 | JH2102005 | ND |
| 2021-03-16 | JH2102004 | ND |
| 2021-03-16 | JH2102006 | ND |
| 2021-05-14 | L2125415-01 | ND |
| 2022-03-07 | JH2201765 | ND |
| 2022-03-07 | JH220173 | ND |
| 2022-03-07 | JH2201764 | ND |
| 2022-09-26 | L2253017-01 | ND |
| 2023-05-15 | JH2303551 | ND |
| 2023-05-15 | JH2303552 | ND |
| 2023-05-15 | JH2303553 | ND |