1,1-Dichloroethylene
Upper Leon River Municipal Water District
1,1-Dichloroethylene is used for plastics production. It damages DNA and causes cancer in laboratory animal studies.
7
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 | 1 | 0 | ND |
| 2020 | ND | 1 | 0 | ND |
| 2021 | ND | 1 | 0 | ND |
| 2022 | ND | 1 | 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 |
|---|---|---|
| 2018-09-12 | AE40028 | ND |
| 2019-08-07 | AE77523 | ND |
| 2020-07-15 | AF19409 | ND |
| 2021-08-18 | AF66772 | ND |
| 2022-09-21 | AG14172 | ND |
| 2023-09-14 | AG56282 | ND |
| 2023-12-12 | AG66337 | ND |