cis-1,2-Dichloroethylene
Hickory Grove Water System
NOTE: Hickory Grove Water System purchases water from Fairview Union Water System which is required to test for cis-1,2-dichloroethylene. Sample information shown below was taken by Fairview Union Water System.
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.
Samples
Samples exceeding legal limit (MCL)
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 | 8 | 0 | ND |
| 2020 | ND | 1 | 0 | ND |
| 2021 | ND | 4 | 0 | ND |
| 2022 | ND | 1 | 0 | ND |
| 2023 | ND | 1 | 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
NOTE: Hickory Grove Water System purchases water from Fairview Union Water System which is required to test for cis-1,2-dichloroethylene. Sample information shown below was taken by Fairview Union Water System.
| Date | Lab ID | Result |
|---|---|---|
| 2018-01-22 | 35370033001 | ND |
| 2018-01-22 | 35370033001 | ND |
| 2019-02-25 | 35450972001 | ND |
| 2019-02-25 | 35450972001 | ND |
| 2020-02-17 | 35531817001 | ND |
| 2021-01-14 | 35604986002 | ND |
| 2022-02-01 | 35694942005 | ND |
| 2023-03-06 | 35784946001 | ND |