1,1,2,2-Tetrachloroethane
Southwood Water System
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.
22
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 | ND | 5 | 0 | ND |
| 2020 | N/A | 0 | 0 | N/A |
| 2021 | ND | 3 | 0 | ND |
| 2022 | ND | 11 | 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 |
|---|---|---|
| 2019-06-26 | ND | |
| 2019-07-12 | ND | |
| 2019-07-12 | ND | |
| 2019-09-05 | ND | |
| 2019-10-15 | ND | |
| 2021-03-12 | 4166774 | ND |
| 2021-03-12 | 4164633 | ND |
| 2021-03-17 | 4205286 | ND |
| 2022-01-26 | 4240241 | ND |
| 2022-01-26 | 4240240 | ND |
| 2022-01-26 | 4240242 | ND |
| 2022-01-27 | 4240239 | ND |
| 2022-02-04 | 4240245 | ND |
| 2022-02-04 | 4240244 | ND |
| 2022-10-11 | 4465087 | ND |
| 2022-10-17 | 4370660 | ND |
| 2022-10-31 | 4465043 | ND |
| 2022-10-31 | 4464989 | ND |
| 2022-11-14 | 4382866 | ND |
| 2023-03-14 | 4437441 | ND |
| 2023-03-14 | 4437411 | ND |
| 2023-09-26 | 4532910 | ND |