1,1-Dichloroethylene
Smithville
1,1-Dichloroethylene is used for plastics production. It damages DNA and causes cancer in laboratory animal studies.
10
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 | N/A | 0 | 0 | N/A |
| 2020 | N/A | 0 | 0 | N/A |
| 2021 | ND | 4 | 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 |
|---|---|---|
| 2018-05-15 | AJ89544 | ND |
| 2018-05-15 | AJ89545 | ND |
| 2021-11-11 | AK90633 | ND |
| 2021-11-11 | AK90634 | ND |
| 2021-12-08 | AK92237 | ND |
| 2021-12-08 | AK92238 | ND |
| 2022-05-02 | AL00129 | ND |
| 2022-05-02 | AL00130 | ND |
| 2023-03-07 | AL26835 | ND |
| 2023-03-07 | AL26836 | ND |