cis-1,2-Dichloroethylene
Bridgewater Water Department
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.
23
Samples
0
Samples exceeding legal limit (MCL)
0
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 | 5 | 0 | ND |
| 2021 | ND | 4 | 0 | ND |
| 2022 | ND | 2 | 0 | ND |
| 2023 | ND | 4 | 0 | ND |
ppb = parts per billion
State, National, and Health Guidelines for Drinking Water
EPA Maximum Contaminant
Level (MCL): 70 ppb
The legal limit for cis-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 | Result |
|---|---|
| 2018-07-17 | ND |
| 2018-07-17 | ND |
| 2018-07-17 | ND |
| 2018-10-25 | ND |
| 2019-09-23 | ND |
| 2019-09-23 | ND |
| 2019-09-23 | ND |
| 2019-12-18 | ND |
| 2020-07-22 | ND |
| 2020-07-30 | ND |
| 2020-12-15 | ND |
| 2020-12-31 | ND |
| 2020-12-31 | ND |
| 2021-05-04 | ND |
| 2021-07-14 | ND |
| 2021-10-12 | ND |
| 2021-10-12 | ND |
| 2022-04-12 | ND |
| 2022-08-29 | ND |
| 2023-01-19 | ND |
| 2023-03-08 | ND |
| 2023-04-04 | ND |
| 2023-07-26 | ND |