1,1,2,2-Tetrachloroethane
City of Humble
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.
25
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 |
|---|---|---|---|---|
| 2013 | N/A | 0 | 0 | N/A |
| 2014 | N/A | 0 | 0 | N/A |
| 2015 | ND | 5 | 0 | ND |
| 2016 | ND | 5 | 0 | ND |
| 2017 | ND | 5 | 0 | ND |
| 2018 | ND | 5 | 0 | ND |
| 2019 | ND | 5 | 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 |
|---|---|---|
| 2015-01-20 | AC76796 | ND |
| 2015-01-20 | AC76784 | ND |
| 2015-01-20 | AC76780 | ND |
| 2015-01-20 | AC76800 | ND |
| 2015-01-20 | AC76798 | ND |
| 2016-01-21 | AD19313 | ND |
| 2016-01-21 | AD19307 | ND |
| 2016-01-21 | AD19315 | ND |
| 2016-01-21 | AD19317 | ND |
| 2016-01-21 | AD19309 | ND |
| 2017-01-05 | AD63235 | ND |
| 2017-01-05 | AD63231 | ND |
| 2017-01-05 | AD63233 | ND |
| 2017-01-05 | AD63263 | ND |
| 2017-04-21 | AD80683 | ND |
| 2018-01-19 | AE09579 | ND |
| 2018-01-19 | AE09595 | ND |
| 2018-01-19 | AE09539 | ND |
| 2018-04-03 | AE21021 | ND |
| 2018-04-03 | AE21019 | ND |
| 2019-01-15 | AE49863 | ND |
| 2019-01-15 | AE49877 | ND |
| 2019-01-15 | AE49873 | ND |
| 2019-01-15 | AE49879 | ND |
| 2019-01-15 | AE49853 | ND |