1,1,1,2-Tetrachloroethane
Langham Creek Utility District
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 | 2 | 0 | ND |
2016 | ND | 5 | 0 | ND |
2017 | ND | 3 | 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 |
---|---|---|
2014-07-30 | AC61537 | ND |
2015-08-11 | AD03610 | ND |
2015-08-11 | AD03608 | ND |
2016-02-19 | AD24790 | ND |
2016-02-19 | AD24786 | ND |
2016-05-17 | AD37055 | ND |
2016-09-14 | AD49889 | ND |
2016-12-05 | AD60692 | ND |
2017-05-11 | AD84007 | ND |
2017-05-11 | AD83995 | ND |
2017-05-11 | AD84005 | ND |
2018-01-22 | AE09561 | ND |
2018-01-22 | AE09537 | ND |
2019-02-19 | AE54858 | ND |
2019-12-03 | AE91055 | ND |