cis-1,2-Dichloroethylene
Lehigh County Authority Allentown Division
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.
21
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 | 2 | 0 | ND |
| 2019 | ND | 2 | 0 | ND |
| 2020 | ND | 4 | 0 | ND |
| 2021 | ND | 4 | 0 | ND |
| 2022 | ND | 4 | 0 | ND |
| 2023 | ND | 5 | 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 |
|---|---|---|
| 2018-03-13 | 8023741-01 | ND |
| 2018-03-13 | 8023741-02 | ND |
| 2019-03-19 | 9024667-02 | ND |
| 2019-03-19 | 9024667-01 | ND |
| 2020-03-04 | 21896261.00 | ND |
| 2020-03-11 | 21896283.00 | ND |
| 2020-03-18 | 21896329.00 | ND |
| 2020-03-18 | 21896318.00 | ND |
| 2021-01-06 | 23762414.00 | ND |
| 2021-01-13 | 23762437.00 | ND |
| 2021-01-20 | 23762460.00 | ND |
| 2021-01-20 | 23762483.00 | ND |
| 2022-01-10 | 25992204.00 | ND |
| 2022-01-19 | 25992225.00 | ND |
| 2022-01-25 | 25992248.00 | ND |
| 2022-01-25 | 25992269.00 | ND |
| 2023-01-04 | 28221618.00 | ND |
| 2023-01-09 | 28221641.00 | ND |
| 2023-01-18 | 28221664.00 | ND |
| 2023-01-18 | 28221687.00 | ND |
| 2023-02-22 | 28396007.00 | ND |