cis-1,2-Dichloroethylene
Ponderosa S/d
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.
17
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 | 1 | 0 | ND |
| 2019 | ND | 1 | 0 | ND |
| 2020 | ND | 3 | 0 | ND |
| 2021 | ND | 4 | 0 | ND |
| 2022 | ND | 4 | 0 | ND |
| 2023 | ND | 4 | 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 |
|---|---|---|
| 2018-04-12 | CB03472-01RE1 | ND |
| 2019-04-16 | CC04280-01 | ND |
| 2020-04-01 | CD03181-01 | ND |
| 2020-08-05 | CD12136-01 | ND |
| 2020-10-07 | CD13750-01 | ND |
| 2021-01-13 | CD18731-01 | ND |
| 2021-04-21 | CE02821-01 | ND |
| 2021-07-14 | CE07607-01 | ND |
| 2021-10-13 | CE12470-01 | ND |
| 2022-01-26 | CE17926-01 | ND |
| 2022-04-20 | CF02420-01 | ND |
| 2022-08-08 | CF07143-01 | ND |
| 2022-10-05 | CF12757-01 | ND |
| 2023-01-25 | 752-1983-1 | ND |
| 2023-04-26 | 37729_23-20811 | ND |
| 2023-08-15 | 37729_23-45203 | ND |
| 2023-10-18 | 37729_23-59288 | ND |