1,1,1,2-Tetrachloroethane
City of Waco
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 | 4 | 0 | ND |
2015 | ND | 3 | 0 | ND |
2016 | ND | 3 | 0 | ND |
2017 | ND | 4 | 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 |
---|---|---|
2014-02-12 | AC42617 | ND |
2014-08-04 | AC61951 | ND |
2014-08-04 | AC61957 | ND |
2014-08-04 | AC61953 | ND |
2015-07-07 | AC98595 | ND |
2015-07-07 | AC98597 | ND |
2015-10-08 | AD10010 | ND |
2016-07-11 | AD43615 | ND |
2016-07-11 | AD43619 | ND |
2016-07-11 | AD43617 | ND |
2017-04-13 | AD79636 | ND |
2017-07-27 | AD91148 | ND |
2017-07-27 | AD91150 | ND |
2017-10-02 | AD98801 | ND |
2018-07-19 | AE33981 | ND |
2018-07-19 | AE33959 | ND |
2019-07-23 | AE75567 | ND |
2019-07-23 | AE75565 | ND |