cis-1,2-Dichloroethylene
Clarence Cannon Wholesale Water Commission
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.
12
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 | 1 | 0 | ND |
| 2019 | ND | 4 | 0 | ND |
| 2020 | ND | 4 | 0 | ND |
| 2021 | ND | 1 | 0 | ND |
| 2022 | ND | 1 | 0 | ND |
| 2023 | ND | 1 | 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 | Lab ID | Result |
|---|---|---|
| 2018-11-05 | AD36259 | ND |
| 2019-01-31 | AD39215 | ND |
| 2019-04-09 | AD46647 | ND |
| 2019-07-11 | AD52705 | ND |
| 2019-10-21 | AD57363 | ND |
| 2020-01-13 | AD60684 | ND |
| 2020-04-22 | 2004155 | ND |
| 2020-07-20 | 2011492 | ND |
| 2020-10-28 | 2016556 | ND |
| 2021-11-09 | 2119459 | ND |
| 2022-04-21 | 2204250 | ND |
| 2023-04-24 | 2303340 | ND |