1,1-Dichloroethylene
Security Waster District
1,1-Dichloroethylene is used for plastics production. It damages DNA and causes cancer in laboratory animal studies.
13
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 | N/A | 0 | 0 | N/A |
| 2019 | N/A | 0 | 0 | N/A |
| 2020 | N/A | 0 | 0 | N/A |
| 2021 | ND | 4 | 0 | ND |
| 2022 | ND | 4 | 0 | ND |
| 2023 | ND | 5 | 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 | Result |
|---|---|
| 2021-03-01 | ND |
| 2021-06-07 | ND |
| 2021-07-12 | ND |
| 2021-12-01 | ND |
| 2022-02-01 | ND |
| 2022-04-04 | ND |
| 2022-08-10 | ND |
| 2022-10-03 | ND |
| 2023-01-04 | ND |
| 2023-01-31 | ND |
| 2023-04-03 | ND |
| 2023-07-10 | ND |
| 2023-10-02 | ND |