cis-1,2-Dichloroethylene
Aqua Pa Bristol
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.
23
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 | 3 | 0 | ND |
| 2020 | ND | 5 | 0 | ND |
| 2021 | ND | 5 | 0 | ND |
| 2022 | ND | 6 | 0 | ND |
| 2023 | ND | 2 | 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 |
|---|---|---|
| 2018-02-02 | AF75113 | ND |
| 2018-02-22 | AF76987 | ND |
| 2019-02-01 | AG07157 | ND |
| 2019-03-07 | AG10696 | ND |
| 2019-04-12 | AG14108 | ND |
| 2020-01-10 | 21483476.00 | ND |
| 2020-04-03 | 22002013.00 | ND |
| 2020-04-09 | 22002034.00 | ND |
| 2020-07-10 | 22586033.00 | ND |
| 2020-10-23 | 23162718.00 | ND |
| 2021-01-15 | 23692347.00 | ND |
| 2021-02-05 | 23869121.00 | ND |
| 2021-05-14 | 24417533.00 | ND |
| 2021-07-09 | 24807869.00 | ND |
| 2021-10-08 | 25383921.00 | ND |
| 2022-01-14 | 25922405.00 | ND |
| 2022-02-03 | 26099333.00 | ND |
| 2022-04-01 | 26443304.00 | ND |
| 2022-04-08 | 26443283.00 | ND |
| 2022-07-08 | 27016770.00 | ND |
| 2022-11-08 | 27804049.00 | ND |
| 2023-01-27 | 28152909.00 | ND |
| 2023-02-16 | 28330620.00 | ND |