1,1,1,2-Tetrachloroethane
Los Angeles County Waterworks District 36-Val Verde
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 | 1 | 0 | ND |
2015 | ND | 1 | 0 | ND |
2016 | ND | 1 | 0 | ND |
2017 | ND | 1 | 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 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 |
---|---|---|
2014-05-07 | 5442-012-0950 | ND |
2015-05-12 | 5442-012-1040 | ND |
2016-02-29 | 5442-012-1039 | ND |
2017-07-19 | 9588-012-1058 | ND |
2018-08-20 | 9590-012-1200 | ND |
2019-01-24 | 9588-012-1220 | ND |