1,1,2,2-Tetrachloroethane
Hemlock Mutual Water Company
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 | 2 | 0 | ND |
2015 | ND | 2 | 0 | ND |
2016 | ND | 2 | 0 | ND |
2017 | ND | 2 | 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 |
---|---|---|
2014-09-02 | 9588-001-1030 | ND |
2014-09-02 | 9588-002-1040 | ND |
2015-09-03 | 9588-001-1040 | ND |
2015-09-03 | 9588-002-1025 | ND |
2016-09-06 | 9588-001-0840 | ND |
2016-09-06 | 9588-002-0830 | ND |
2017-09-05 | 9588-001-1145 | ND |
2017-09-05 | 9588-002-1130 | ND |
2018-09-06 | 9588-001-0910 | ND |
2018-09-06 | 9588-002-0850 | ND |
2019-09-09 | 9588-001-1030 | ND |
2019-09-09 | 9588-002-1025 | ND |