cis-1,2-Dichloroethylene
Aqua Pa West Chester
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.
18
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 | 3 | 0 | ND |
| 2019 | ND | 4 | 0 | ND |
| 2020 | ND | 3 | 0 | ND |
| 2021 | ND | 3 | 0 | ND |
| 2022 | ND | 3 | 0 | ND |
| 2023 | ND | 2 | 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 |
|---|---|---|
| 2018-01-29 | AF74444 | ND |
| 2018-02-22 | AF77012 | ND |
| 2018-03-22 | AF78070 | ND |
| 2019-03-06 | AG10280 | ND |
| 2019-03-06 | AG10262 | ND |
| 2019-03-06 | AG10272 | ND |
| 2019-03-07 | AG10725 | ND |
| 2020-03-10 | 21839017.00 | ND |
| 2020-03-11 | 21838996.00 | ND |
| 2020-04-02 | 22014452.00 | ND |
| 2021-02-10 | 23881855.00 | ND |
| 2021-02-10 | 23881876.00 | ND |
| 2021-02-10 | 23881897.00 | ND |
| 2022-01-28 | 25934687.00 | ND |
| 2022-02-24 | 26110775.00 | ND |
| 2022-03-28 | 26280752.00 | ND |
| 2023-03-23 | 28514064.00 | ND |
| 2023-03-28 | 28514085.00 | ND |