1,1-Dichloroethylene
Theresa Waterworks
1,1-Dichloroethylene is used for plastics production. It damages DNA and causes cancer in laboratory animal studies.
9
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 | 2 | 0 | ND |
| 2020 | ND | 2 | 0 | ND |
| 2021 | ND | 2 | 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): 7 ppb
The legal limit for 1,1-dichloroethylene, established in 1987, was based on a toxicity study conducted in laboratory animals in the 1980s.
ppb = parts per billion
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2018-09-12 | 1080103 | ND |
| 2019-07-02 | 1132019 | ND |
| 2019-07-16 | 1134783 | ND |
| 2020-08-12 | 1206557 | ND |
| 2020-08-12 | 1206554 | ND |
| 2021-04-12 | 1248254 | ND |
| 2021-04-12 | 1248256 | ND |
| 2022-04-04 | 5040777B | ND |
| 2023-04-12 | 53014863 | ND |