1,1-Dichloroethylene
Joshua Basin 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 | 2 | 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 | 3 | 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 |
|---|---|---|
| 2018-02-14 | CA3610025_011_011-201802140845 | ND |
| 2018-05-10 | CA3610025_008_008-201805100600 | ND |
| 2020-07-29 | CA3610025_005_005-202007290845 | ND |
| 2022-10-03 | CA3610025_010_010-202210030823 | ND |
| 2023-08-30 | CA3610025_009_009-202308300830 | ND |
| 2023-08-30 | CA3610025_005_005-202308301000 | ND |
| 2023-11-07 | CA3610025_011_011-202311070928 | ND |