1,1,2,2-Tetrachloroethane
Encinal Water Supply Corporation
1,1,2,2-Tetrachloroethane is an industrial chemical which has been used as a metal degreaser, and in paint, paint removers, mothballs and pesticides. It damages the liver and nervous system, and may cause cancer.
19
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 | ND | 2 | 0 | ND |
| 2020 | ND | 6 | 0 | ND |
| 2021 | ND | 3 | 0 | ND |
| 2022 | ND | 3 | 0 | ND |
| 2023 | ND | 3 | 0 | ND |
ppb = parts per billion
State, National, and Health Guidelines for Drinking Water
EWG Health Guideline: 0.1 ppb
The EWG Health Guideline of 0.1 ppb for 1,1,2,2-tetrachloroethane was defined by the California Office of Environmental Health Hazard Assessment as a public health goal, the level of a drinking water contaminant that does not pose a significant health risk. This health guideline protects against cancer.
ppb = parts per billion
All test results
| Date | Lab ID | Result |
|---|---|---|
| 2018-07-19 | AE33973 | ND |
| 2018-07-19 | AE33965 | ND |
| 2019-09-26 | AE84864 | ND |
| 2019-12-11 | AE92154 | ND |
| 2020-03-24 | AF04315 | ND |
| 2020-03-24 | AF04317 | ND |
| 2020-03-24 | AF04319 | ND |
| 2020-06-08 | AF14872 | ND |
| 2020-07-20 | AF19932 | ND |
| 2020-12-10 | AF37297 | ND |
| 2021-08-04 | AF64835 | ND |
| 2021-08-04 | AF64837 | ND |
| 2021-12-22 | AF79284 | ND |
| 2022-09-29 | AG15510 | ND |
| 2022-09-29 | AG15512 | ND |
| 2022-09-29 | AG15514 | ND |
| 2023-09-14 | AG56310 | ND |
| 2023-09-14 | AG56314 | ND |
| 2023-09-14 | AG56318 | ND |