1,1,1,2-Tetrachloroethane
Golden State Water Company (GSWC) - San Dimas
1,1,1,2-Tetrachloroethane is a synthetic chemical used in metal degreasing and as an intermediate in industrial chemical production.
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 1 ppb
The EWG Health Guideline of 1 ppb for 1,1,1,2-tetrachloroethane was defined by the Environmental Protection Agency as a one-in-a-million lifetime risk of cancer. Values greater than one-in-a-million cancer risk level can result in increased cancer cases above one in a million people.
ppb = parts per billion
All test results
Date | Lab ID | Result |
---|---|---|
2014-02-19 | 9588-051-0930 | ND |
2014-05-14 | 9588-014-1010 | ND |
2015-02-18 | 9588-051-0920 | ND |
2015-05-18 | 9588-014-0915 | ND |
2016-02-16 | 9588-051-0825 | ND |
2016-05-12 | 9588-014-0925 | ND |
2017-01-05 | 9588-051-0800 | ND |
2017-05-15 | 9588-014-0905 | ND |
2018-02-15 | 9588-051-1045 | ND |
2018-05-16 | 9588-014-0855 | ND |
2019-02-11 | 9588-051-0835 | ND |
2019-06-12 | 9588-014-0830 | ND |