1,1,2,2-Tetrachloroethane
City of Alvin
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.
16
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 |
|---|---|---|---|---|
| 2014 | ND | 1 | 0 | ND |
| 2015 | ND | 3 | 0 | ND |
| 2016 | ND | 3 | 0 | ND |
| 2017 | ND | 3 | 0 | ND |
| 2018 | ND | 3 | 0 | ND |
| 2019 | ND | 3 | 0 | ND |
ppb = parts per billion
State and national drinking water standards and health guidelines
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 |
|---|---|---|
| 2014-02-10 | AC41924 | ND |
| 2015-01-22 | AC77353 | ND |
| 2015-01-22 | AC77351 | ND |
| 2015-01-22 | AC77341 | ND |
| 2016-01-11 | AD17322 | ND |
| 2016-01-11 | AD17348 | ND |
| 2016-01-11 | AD17334 | ND |
| 2017-01-09 | AD63623 | ND |
| 2017-01-09 | AD63627 | ND |
| 2017-01-09 | AD63637 | ND |
| 2018-02-20 | AE14451 | ND |
| 2018-02-20 | AE14455 | ND |
| 2018-02-20 | AE14457 | ND |
| 2019-02-25 | AE55657 | ND |
| 2019-02-25 | AE55647 | ND |
| 2019-02-25 | AE55645 | ND |