1,1,1,2-Tetrachloroethane
Duncan, Village of
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 | 4 | 0 | ND |
2016 | ND | 5 | 0 | ND |
2017 | ND | 4 | 0 | ND |
2018 | ND | 4 | 0 | ND |
2019 | ND | 5 | 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 |
---|---|---|
2014-01-21 | 278561 | ND |
2014-04-07 | 293558 | ND |
2014-07-07 | 309828 | ND |
2014-10-06 | 328707 | ND |
2015-01-05 | 343430 | ND |
2015-04-06 | 353686 | ND |
2015-07-06 | 372092 | ND |
2015-10-05 | 392382 | ND |
2016-01-20 | ND | |
2016-04-04 | ND | |
2016-07-05 | ND | |
2016-09-19 | ND | |
2016-10-11 | ND | |
2017-03-06 | ND | |
2017-06-12 | ND | |
2017-09-05 | ND | |
2017-10-16 | ND | |
2018-01-02 | 530843 | ND |
2018-04-03 | 542883 | ND |
2018-07-09 | 560193 | ND |
2018-10-15 | 577046 | ND |
2019-01-14 | 590577 | ND |
2019-04-01 | 602878 | ND |
2019-07-08 | 621137 | ND |
2019-09-09 | 630435 | ND |
2019-10-21 | 638589 | ND |