cis-1,2-Dichloroethylene
Pennsylvania American Norristown
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 | 3 | 0 | ND |
| 2020 | ND | 3 | 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 |
|---|---|---|
| 2018-04-03 | 39060301 | ND |
| 2019-04-16 | 43646101 | ND |
| 2019-10-22 | 47450201 | ND |
| 2019-11-18 | 47355101 | ND |
| 2020-02-10 | 21668810.00 | ND |
| 2020-05-12 | 22216888.00 | ND |
| 2020-08-11 | 22800779.00 | ND |
| 2021-05-05 | 24440287.00 | ND |
| 2022-05-02 | 26650170.00 | ND |
| 2023-05-08 | 28901921.00 | ND |