trans-1,2-Dichloroethylene
Schuylkill County. Municipal Authority
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 | 4 | 0 | ND |
| 2023 | ND | 4 | 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 |
|---|---|---|
| 2018-07-17 | 8020362-01 | ND |
| 2018-07-17 | 8020365-01 | ND |
| 2018-07-17 | 8020364-01 | ND |
| 2018-07-17 | 8020366-01 | ND |
| 2019-07-16 | 9024930-02 | ND |
| 2019-07-16 | 9024930-03 | ND |
| 2019-07-16 | 9024930-04 | ND |
| 2019-07-16 | 9024930-01RE | ND |
| 2020-07-13 | 22671299.00 | ND |
| 2020-07-13 | 22671278.00 | ND |
| 2020-07-13 | 22671257.00 | ND |
| 2020-07-13 | 22671236.00 | ND |
| 2021-07-13 | 24892779.00 | ND |
| 2021-07-13 | 24892800.00 | ND |
| 2021-07-13 | 24892821.00 | ND |
| 2021-07-13 | 24892842.00 | ND |
| 2022-07-13 | 27102646.00 | ND |
| 2022-07-13 | 27102647.00 | ND |
| 2022-07-13 | 27102645.00 | ND |
| 2022-07-13 | 27102648.00 | ND |
| 2023-07-12 | 29366514.00 | ND |
| 2023-07-12 | 29366515.00 | ND |
| 2023-07-12 | 29366516.00 | ND |
| 2023-07-12 | 29366513.00 | ND |