1,1,2,2-Tetrachloroethane
Gonzales County Water Supply Corporation
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.
20
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 | 3 | 0 | ND |
| 2015 | ND | 5 | 0 | ND |
| 2016 | ND | 3 | 0 | ND |
| 2017 | ND | 3 | 0 | ND |
| 2018 | ND | 4 | 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 |
|---|---|---|
| 2014-02-20 | AC43865 | ND |
| 2014-06-05 | AC56103 | ND |
| 2014-09-05 | AC66060 | ND |
| 2015-02-04 | AC79291 | ND |
| 2015-02-04 | AC79275 | ND |
| 2015-02-04 | AC79273 | ND |
| 2015-02-04 | AC79281 | ND |
| 2015-07-22 | AD00644 | ND |
| 2016-01-19 | AD18620 | ND |
| 2016-01-19 | AD18652 | ND |
| 2016-09-09 | AD49182 | ND |
| 2017-03-13 | AD75502 | ND |
| 2017-03-13 | AD75498 | ND |
| 2017-03-13 | AD75500 | ND |
| 2018-02-08 | AE13037 | ND |
| 2018-03-12 | AE17864 | ND |
| 2018-03-12 | AE17882 | ND |
| 2018-03-12 | AE17842 | ND |
| 2019-01-09 | AE49237 | ND |
| 2019-01-09 | AE49241 | ND |