1,1,2,2-Tetrachloroethane
Harris County MUD 167
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.
12
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 | 1 | 0 | ND |
| 2016 | ND | 1 | 0 | ND |
| 2017 | ND | 5 | 0 | ND |
| 2018 | ND | 2 | 0 | ND |
| 2019 | ND | 2 | 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 |
|---|---|---|
| 2014-08-13 | AC63433 | ND |
| 2015-07-30 | AD01788 | ND |
| 2016-12-05 | AD60361 | ND |
| 2017-02-03 | AD68751 | ND |
| 2017-02-03 | AD68749 | ND |
| 2017-04-21 | AD80731 | ND |
| 2017-08-01 | AD91627 | ND |
| 2017-10-24 | AE01839 | ND |
| 2018-11-06 | AE45445 | ND |
| 2018-11-06 | AE45447 | ND |
| 2019-08-27 | AE81098 | ND |
| 2019-08-27 | AE81096 | ND |