cis-1,2-Dichloroethylene
Conyngham Water Company
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.
22
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 | 3 | 0 | ND |
| 2019 | ND | 3 | 0 | ND |
| 2020 | ND | 5 | 0 | ND |
| 2021 | ND | 3 | 0 | ND |
| 2022 | ND | 3 | 0 | ND |
| 2023 | ND | 5 | 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 |
|---|---|---|
| 2018-04-17 | 7048808001 | ND |
| 2018-04-17 | 7048808002 | ND |
| 2018-04-17 | 7048808003 | ND |
| 2019-03-12 | 1903-156-2 | ND |
| 2019-03-12 | 19030-156-1 | ND |
| 2019-03-12 | 1903-156-1 | ND |
| 2020-03-02 | 21862225.00 | ND |
| 2020-03-02 | 21862205.00 | ND |
| 2020-03-02 | 21862185.00 | ND |
| 2020-03-02 | 21862165.00 | ND |
| 2020-03-02 | 21862145.00 | ND |
| 2021-06-01 | 24454885.00 | ND |
| 2021-06-01 | 24454865.00 | ND |
| 2021-06-01 | 24454905.00 | ND |
| 2022-04-04 | 26478812.00 | ND |
| 2022-04-04 | 26478832.00 | ND |
| 2022-04-04 | 26478852.00 | ND |
| 2023-03-06 | 28536370.00 | ND |
| 2023-03-06 | 28536390.00 | ND |
| 2023-03-06 | 28536410.00 | ND |
| 2023-12-12 | 30259320.00 | ND |
| 2023-12-12 | 30259300.00 | ND |