1,1-Dichloroethylene
Shorewood Hills Waterworks
1,1-Dichloroethylene is used for plastics production. It damages DNA and causes cancer in laboratory animal studies.
14
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 | 2 | 0 | ND |
| 2019 | ND | 4 | 0 | ND |
| 2020 | ND | 2 | 0 | ND |
| 2021 | ND | 2 | 0 | ND |
| 2022 | ND | 2 | 0 | ND |
| 2023 | ND | 2 | 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 |
|---|---|---|
| 2018-11-19 | 420369001 | ND |
| 2018-11-19 | 420372001 | ND |
| 2019-11-18 | 481795001 | ND |
| 2019-11-18 | 481819001 | ND |
| 2019-12-09 | 484892001 | ND |
| 2019-12-09 | 484891001 | ND |
| 2020-11-16 | 536139001 | ND |
| 2020-11-16 | 536137001 | ND |
| 2021-11-16 | 594760001 | ND |
| 2021-11-16 | 594754001 | ND |
| 2022-11-21 | 654126001 | ND |
| 2022-11-21 | 654127001 | ND |
| 2023-12-08 | 713883001 | ND |
| 2023-12-08 | 713887001 | ND |