1,1,2,2-Tetrachloroethane
Harris County Municipal Utility District 172
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.
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 | 4 | 0 | ND |
2018 | ND | 1 | 0 | ND |
2019 | ND | 1 | 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 |
---|---|---|
2014-12-08 | AC73911 | ND |
2015-02-18 | AC80954 | ND |
2016-03-04 | AD27274 | ND |
2017-03-15 | AD75228 | ND |
2017-06-08 | AD86871 | ND |
2017-07-11 | AD88921 | ND |
2017-10-24 | AE02164 | ND |
2018-01-31 | AE11569 | ND |
2019-01-31 | AE52441 | ND |