cis-1,2-Dichloroethylene
Pennsylvania American Water Company Yardley
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.
35
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 | 3 | 0 | ND |
| 2020 | ND | 7 | 0 | ND |
| 2021 | ND | 7 | 0 | ND |
| 2022 | ND | 8 | 0 | ND |
| 2023 | ND | 7 | 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 |
|---|---|---|
| 2018-04-11 | 39062701 | ND |
| 2018-08-14 | 40630801 | ND |
| 2018-08-14 | 40630201 | ND |
| 2019-04-04 | 43649801 | ND |
| 2019-08-22 | 45815901 | ND |
| 2019-08-22 | 45816001 | ND |
| 2020-01-06 | 21487041.00 | ND |
| 2020-04-09 | 22005634.00 | ND |
| 2020-04-09 | 22005613.00 | ND |
| 2020-07-09 | 22591151.00 | ND |
| 2020-08-06 | 22780444.00 | ND |
| 2020-08-06 | 22780465.00 | ND |
| 2020-10-12 | 23166534.00 | ND |
| 2021-01-06 | 23695988.00 | ND |
| 2021-04-06 | 24230998.00 | ND |
| 2021-04-06 | 24230977.00 | ND |
| 2021-07-07 | 24812022.00 | ND |
| 2021-08-02 | 25004506.00 | ND |
| 2021-08-02 | 25004527.00 | ND |
| 2021-10-04 | 25387739.00 | ND |
| 2022-01-03 | 25926367.00 | ND |
| 2022-03-09 | 26272432.00 | ND |
| 2022-04-06 | 26447227.00 | ND |
| 2022-04-06 | 26447252.00 | ND |
| 2022-07-12 | 27020335.00 | ND |
| 2022-08-04 | 27216467.00 | ND |
| 2022-08-04 | 27216416.00 | ND |
| 2022-10-13 | 27625720.00 | ND |
| 2023-01-03 | 28156604.00 | ND |
| 2023-04-17 | 28684431.00 | ND |
| 2023-04-17 | 28684410.00 | ND |
| 2023-07-12 | 29285450.00 | ND |
| 2023-08-09 | 29478518.00 | ND |
| 2023-08-09 | 29478497.00 | ND |
| 2023-10-11 | 29870745.00 | ND |