cis-1,2-Dichloroethylene
Genoa
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.
11
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 | N/A | 0 | 0 | N/A |
| 2019 | N/A | 0 | 0 | N/A |
| 2020 | 0.900 ppb | 4 | 2 | ND - 2.00 ppb |
| 2021 | 2.50 ppb | 3 | 3 | 2.30 ppb - 2.70 ppb |
| 2022 | 3.30 ppb | 3 | 3 | 3.00 ppb - 3.80 ppb |
| 2023 | 4.30 ppb | 1 | 1 | 4.30 ppb |
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 |
|---|---|---|
| 2020-01-16 | 0013218-01 | ND |
| 2020-01-16 | 0013218-03 | ND |
| 2020-01-16 | 0013218-04 | 2.00 ppb |
| 2020-02-13 | 0022593-01 | 1.60 ppb |
| 2021-04-15 | ED03164-01 | 2.50 ppb |
| 2021-07-13 | EG03220-01 | 2.30 ppb |
| 2021-10-13 | EJ02899-01 | 2.70 ppb |
| 2022-01-13 | FA02505-01 | 3.10 ppb |
| 2022-05-11 | FE02755-01 | 3.00 ppb |
| 2022-08-02 | FH01349-01 | 3.80 ppb |
| 2023-02-07 | GB01903-01 | 4.30 ppb |