cis-1,2-Dichloroethylene
Estates At Highland Ridge
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.
38
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 | 6 | 0 | ND |
| 2019 | ND | 6 | 0 | ND |
| 2020 | ND | 6 | 0 | ND |
| 2021 | 0.0833 ppb | 6 | 1 | ND - 0.500 ppb |
| 2022 | ND | 6 | 0 | ND |
| 2023 | ND | 8 | 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 | Result |
|---|---|
| 2018-05-22 | ND |
| 2018-05-22 | ND |
| 2018-05-22 | ND |
| 2018-05-22 | ND |
| 2018-05-22 | ND |
| 2018-10-10 | ND |
| 2019-05-21 | ND |
| 2019-05-21 | ND |
| 2019-05-21 | ND |
| 2019-05-21 | ND |
| 2019-05-21 | ND |
| 2019-12-23 | ND |
| 2020-05-14 | ND |
| 2020-05-14 | ND |
| 2020-05-14 | ND |
| 2020-05-14 | ND |
| 2020-05-14 | ND |
| 2020-12-14 | ND |
| 2021-04-26 | ND |
| 2021-04-26 | ND |
| 2021-04-26 | ND |
| 2021-04-26 | ND |
| 2021-04-26 | ND |
| 2021-12-28 | 0.500 ppb |
| 2022-06-21 | ND |
| 2022-06-21 | ND |
| 2022-06-21 | ND |
| 2022-06-21 | ND |
| 2022-06-21 | ND |
| 2022-12-21 | ND |
| 2023-06-26 | ND |
| 2023-06-26 | ND |
| 2023-06-26 | ND |
| 2023-06-26 | ND |
| 2023-06-26 | ND |
| 2023-10-23 | ND |
| 2023-12-12 | ND |
| 2023-12-13 | ND |