1,1,1,2-Tetrachloroethane
San Fernando Water Department
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 | 3 | 0 | ND |
2015 | ND | 3 | 0 | ND |
2016 | ND | 3 | 0 | ND |
2017 | ND | 5 | 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 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 |
---|---|---|
2014-01-22 | 9590-004-0840 | ND |
2014-01-22 | 9590-003-0950 | ND |
2014-01-22 | 9590-002-0905 | ND |
2015-01-21 | 9590-002-0820 | ND |
2015-01-21 | 9590-003-1015 | ND |
2015-01-21 | 9590-004-0905 | ND |
2016-02-17 | 9590-002-0920 | ND |
2016-02-17 | 9590-004-0900 | ND |
2016-04-13 | 9590-004-0820 | ND |
2017-01-25 | 9590-003-0855 | ND |
2017-01-25 | 9590-004-0800 | ND |
2017-01-25 | 9590-002-0715 | ND |
2017-04-05 | 9590-004-0920 | ND |
2017-10-24 | 9590-004-0715 | ND |
2018-01-24 | 9590-004-1055 | ND |
2018-01-24 | 9590-002-0900 | ND |
2018-06-06 | 9590-004-0905 | ND |
2018-07-11 | 9590-004-0855 | ND |
2019-01-11 | 9590-004-0925 | ND |
2019-01-11 | 9590-002-0900 | ND |