trans-1,2-Dichloroethylene
Springfield Utility Board
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 | 2 | 0 | ND |
| 2019 | ND | 2 | 0 | ND |
| 2020 | ND | 5 | 0 | ND |
| 2021 | ND | 2 | 0 | ND |
| 2022 | ND | 2 | 0 | ND |
| 2023 | ND | 2 | 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 |
|---|---|---|
| 2018-06-26 | 1806B8801A-V | ND |
| 2018-07-11 | 180758501A-V | ND |
| 2019-07-10 | 1907459001-V | ND |
| 2019-08-29 | 1908157801A-V | ND |
| 2020-07-16 | 202007170409-V | ND |
| 2020-07-23 | 202007240137-V | ND |
| 2020-07-23 | 202007240138-V | ND |
| 2020-07-28 | 202007290169-V | ND |
| 2020-09-17 | 202009180226-V | ND |
| 2021-07-07 | 202107090886-V | ND |
| 2021-08-12 | 202108160334-V | ND |
| 2022-08-03 | 22080314-01-V | ND |
| 2022-09-21 | 22091159-01-V | ND |
| 2023-09-12 | 23090569-01A-V | ND |
| 2023-09-12 | 23090566-01A-V | ND |