1,1,1,2-Tetrachloroethane
Denver Water Board
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 |
---|---|---|---|---|
2013 | N/A | 0 | 0 | N/A |
2014 | ND | 31 | 0 | ND |
2015 | ND | 8 | 0 | ND |
2016 | N/A | 0 | 0 | N/A |
2017 | N/A | 0 | 0 | N/A |
2018 | N/A | 0 | 0 | N/A |
2019 | N/A | 0 | 0 | N/A |
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 | Result |
---|---|
2014-01-07 | ND |
2014-04-08 | ND |
2014-04-08 | ND |
2014-05-06 | ND |
2014-05-06 | ND |
2014-05-27 | ND |
2014-05-27 | ND |
2014-05-27 | ND |
2014-06-03 | ND |
2014-06-03 | ND |
2014-06-03 | ND |
2014-07-08 | ND |
2014-07-08 | ND |
2014-07-08 | ND |
2014-08-05 | ND |
2014-08-05 | ND |
2014-08-05 | ND |
2014-08-18 | ND |
2014-08-18 | ND |
2014-08-18 | ND |
2014-09-02 | ND |
2014-09-02 | ND |
2014-09-06 | ND |
2014-10-07 | ND |
2014-10-07 | ND |
2014-11-04 | ND |
2014-11-04 | ND |
2014-11-20 | ND |
2014-11-20 | ND |
2014-12-02 | ND |
2014-12-02 | ND |
2015-01-06 | ND |
2015-01-06 | ND |
2015-02-03 | ND |
2015-02-03 | ND |
2015-02-18 | ND |
2015-02-18 | ND |
2015-03-03 | ND |
2015-03-03 | ND |