cis-1,2-Dichloroethylene
Westchester County WD #2
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.
10
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 | 1 | 0 | ND |
| 2020 | ND | 2 | 0 | ND |
| 2021 | ND | 2 | 0 | ND |
| 2022 | ND | 3 | 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 |
|---|---|---|
| 2018-05-11 | 7051465001 POCS | ND |
| 2019-05-31 | 7091709001 POCS | ND |
| 2020-05-08 | 70130562 POCS | ND |
| 2020-11-12 | AW21843-POCS | ND |
| 2021-06-04 | 70175718002-POC | ND |
| 2021-07-27 | AX14931-POCS | ND |
| 2022-05-13 | 70214739003-POCS | ND |
| 2022-05-13 | 70214743004-POCS | ND |
| 2022-09-21 | AY17010-POCS | ND |
| 2023-07-27 | AZ13680-POCS | ND |