cis-1,2-Dichloroethylene
Pennsylvania American Royersford
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.
29
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 | 4 | 0 | ND |
| 2019 | ND | 4 | 0 | ND |
| 2020 | ND | 5 | 0 | ND |
| 2021 | ND | 6 | 0 | ND |
| 2022 | ND | 5 | 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 |
|---|---|---|
| 2018-04-11 | 39073401 | ND |
| 2018-04-11 | 39072901 | ND |
| 2018-04-11 | 39074201 | ND |
| 2018-04-11 | 39073001 | ND |
| 2019-04-08 | 43660501 | ND |
| 2019-04-08 | 43660601 | ND |
| 2019-04-08 | 43659301 | ND |
| 2019-04-23 | 43659401 | ND |
| 2020-04-02 | 22016196.00 | ND |
| 2020-04-02 | 22016080.00 | ND |
| 2020-04-02 | 22016152.00 | ND |
| 2020-04-02 | 22016175.00 | ND |
| 2020-04-02 | 22016131.00 | ND |
| 2021-04-01 | 24241269.00 | ND |
| 2021-04-01 | 24241290.00 | ND |
| 2021-04-01 | 24241313.00 | ND |
| 2021-08-05 | 25016534.00 | ND |
| 2021-10-14 | 25398547.00 | ND |
| 2021-11-11 | 25582459.00 | ND |
| 2022-02-09 | 26111835.00 | ND |
| 2022-04-14 | 26458190.00 | ND |
| 2022-04-14 | 26458181.00 | ND |
| 2022-04-14 | 26458213.00 | ND |
| 2022-05-12 | 26641734.00 | ND |
| 2023-04-19 | 28695817.00 | ND |
| 2023-04-19 | 28695885.00 | ND |
| 2023-04-19 | 28695796.00 | ND |
| 2023-04-19 | 28695838.00 | ND |
| 2023-04-19 | 28695859.00 | ND |