cis-1,2-Dichloroethylene
West Grove Borough
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.
8
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 | N/A | 0 | 0 | N/A |
| 2019 | ND | 1 | 0 | ND |
| 2020 | 0.290 ppb | 2 | 1 | ND - 0.580 ppb |
| 2021 | ND | 1 | 0 | ND |
| 2022 | 0.600 ppb | 1 | 1 | 0.600 ppb |
| 2023 | 0.200 ppb | 3 | 1 | ND - 0.600 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 | Lab ID | Result |
|---|---|---|
| 2019-02-19 | 3017874003 | ND |
| 2020-02-18 | 21660190.00 | ND |
| 2020-02-18 | 21660157.00 | 0.580 ppb |
| 2021-03-22 | 24052730.00 | ND |
| 2022-03-15 | 26280818.00 | 0.600 ppb |
| 2023-03-07 | 28514302.00 | ND |
| 2023-03-07 | 28514323.00 | ND |
| 2023-03-07 | 28514324.00 | 0.600 ppb |