1,1-Dichloroethylene
Sierra Cedars Community Services District
1,1-Dichloroethylene is used for plastics production. It damages DNA and causes cancer in laboratory animal studies.
5
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 | N/A | 0 | 0 | N/A |
| 2020 | ND | 1 | 0 | ND |
| 2021 | N/A | 0 | 0 | N/A |
| 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 |
|---|---|---|
| 2018-12-20 | CA1010052_008_008-201812201335 | ND |
| 2020-03-24 | CA1010052_006_006-202003241045 | ND |
| 2022-11-15 | CA1010052_004_004-202211151135 | ND |
| 2023-10-18 | CA1010052_001_001-202310180930 | ND |
| 2023-10-18 | CA1010052_002_002-202310180905 | ND |