1,1,2,2-Tetrachloroethane
City of Shavano Park
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.
24
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 | 4 | 0 | ND |
| 2019 | ND | 4 | 0 | ND |
| 2020 | ND | 4 | 0 | ND |
| 2021 | ND | 4 | 0 | ND |
| 2022 | ND | 4 | 0 | ND |
| 2023 | ND | 4 | 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 |
|---|---|---|
| 2018-03-02 | AE16674 | ND |
| 2018-03-02 | AE16676 | ND |
| 2018-03-02 | AE16700 | ND |
| 2018-03-02 | AE16668 | ND |
| 2019-04-03 | AE61029 | ND |
| 2019-04-03 | AE61035 | ND |
| 2019-04-03 | AE61039 | ND |
| 2019-04-03 | AE61047 | ND |
| 2020-02-24 | AE99519 | ND |
| 2020-02-24 | AE99539 | ND |
| 2020-02-24 | AE99541 | ND |
| 2020-05-15 | AF11875 | ND |
| 2021-02-23 | AF43941 | ND |
| 2021-02-23 | AF43945 | ND |
| 2021-02-23 | AF43943 | ND |
| 2021-06-18 | AF58893 | ND |
| 2022-03-09 | AF88394 | ND |
| 2022-03-09 | AF88406 | ND |
| 2022-03-09 | AF88408 | ND |
| 2022-03-09 | AF88412 | ND |
| 2023-06-22 | AG45585 | ND |
| 2023-06-22 | AG45593 | ND |
| 2023-06-22 | AG45601 | ND |
| 2023-06-22 | AG45603 | ND |