cis-1,2-Dichloroethylene
Eliot Woods Condos
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.
7
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 | 1.10 ppb | 1 | 1 | 1.10 ppb |
| 2019 | N/A | 0 | 0 | N/A |
| 2020 | N/A | 0 | 0 | N/A |
| 2021 | N/A | 0 | 0 | N/A |
| 2022 | 1.55 ppb | 4 | 3 | ND - 2.30 ppb |
| 2023 | 2.35 ppb | 2 | 2 | 2.30 ppb - 2.40 ppb |
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 |
|---|---|
| 2018-04-02 | 1.10 ppb |
| 2022-01-26 | 1.70 ppb |
| 2022-05-23 | 2.30 ppb |
| 2022-08-10 | 2.20 ppb |
| 2022-12-20 | ND |
| 2023-04-12 | 2.40 ppb |
| 2023-05-15 | 2.30 ppb |