cis-1,2-Dichloroethylene
Northeast Knox U D
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.
22
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 | 1 | 0 | ND |
| 2021 | ND | 3 | 0 | ND |
| 2022 | ND | 5 | 0 | ND |
| 2023 | ND | 5 | 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 |
|---|---|
| 2018-01-17 | ND |
| 2018-04-12 | ND |
| 2018-07-11 | ND |
| 2018-10-16 | ND |
| 2019-01-15 | ND |
| 2019-04-09 | ND |
| 2019-07-16 | ND |
| 2019-10-17 | ND |
| 2020-01-15 | ND |
| 2021-01-21 | ND |
| 2021-05-20 | ND |
| 2021-08-19 | ND |
| 2022-01-20 | ND |
| 2022-01-20 | ND |
| 2022-04-21 | ND |
| 2022-07-19 | ND |
| 2022-10-17 | ND |
| 2023-01-17 | ND |
| 2023-01-17 | ND |
| 2023-01-17 | ND |
| 2023-04-19 | ND |
| 2023-10-17 | ND |