cis-1,2-Dichloroethylene
Charlie Water Supply Corporation
NOTE: Charlie Water Supply Corporation purchases water from City of Byers which is required to test for cis-1,2-dichloroethylene. Sample information shown below was taken by City of Byers.
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 | 1 | 0 | ND |
| 2019 | ND | 1 | 0 | ND |
| 2020 | ND | 1 | 0 | ND |
| 2021 | ND | 1 | 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: Charlie Water Supply Corporation purchases water from City of Byers which is required to test for cis-1,2-dichloroethylene. Sample information shown below was taken by City of Byers.
| Date | Lab ID | Result |
|---|---|---|
| 2018-02-28 | Q1808442001 | ND |
| 2019-01-29 | Q1904438006 | ND |
| 2020-03-03 | Q2007975005 | ND |
| 2021-05-03 | Q2111518007 | ND |
| 2022-01-20 | Q2202091003 | ND |
| 2023-03-06 | Q2308688002 | ND |