1,1,1,2-Tetrachloroethane
East Pasadena Water Company
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 |
---|---|---|
2014-04-07 | 9588-012-1115 | ND |
2014-07-07 | 9588-005-1000 | ND |
2015-04-01 | 9588-012-0910 | ND |
2015-07-15 | 9588-005-1030 | ND |
2016-04-12 | 9588-012-1105 | ND |
2016-07-06 | 9588-005-1145 | ND |
2017-04-11 | 9588-012-1050 | ND |
2017-07-13 | 9588-005-1330 | ND |
2018-04-11 | 9588-012-1035 | ND |
2018-07-12 | 9588-005-1035 | ND |
2019-04-03 | 9588-012-1000 | ND |
2019-07-29 | 9588-005-1225 | ND |