1,1,1,2-Tetrachloroethane
Holden Water Division, DPW
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 | 8 | 0 | ND |
2015 | ND | 8 | 0 | ND |
2016 | ND | 9 | 0 | ND |
2017 | ND | 8 | 0 | ND |
2018 | ND | 8 | 0 | ND |
2019 | ND | 8 | 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 | Result |
---|---|
2014-02-18 | ND |
2014-05-20 | ND |
2014-05-20 | ND |
2014-05-20 | ND |
2014-05-20 | ND |
2014-05-20 | ND |
2014-08-20 | ND |
2014-11-19 | ND |
2015-02-18 | ND |
2015-05-19 | ND |
2015-05-19 | ND |
2015-05-19 | ND |
2015-05-19 | ND |
2015-05-19 | ND |
2015-08-18 | ND |
2015-11-17 | ND |
2016-02-02 | ND |
2016-02-16 | ND |
2016-05-17 | ND |
2016-05-17 | ND |
2016-05-17 | ND |
2016-05-17 | ND |
2016-05-17 | ND |
2016-09-06 | ND |
2016-11-15 | ND |
2017-02-21 | ND |
2017-05-16 | ND |
2017-05-16 | ND |
2017-05-16 | ND |
2017-05-16 | ND |
2017-05-16 | ND |
2017-08-15 | ND |
2017-11-21 | ND |
2018-02-20 | ND |
2018-05-15 | ND |
2018-05-15 | ND |
2018-05-15 | ND |
2018-05-15 | ND |
2018-05-15 | ND |
2018-08-21 | ND |
2018-11-20 | ND |
2019-02-19 | ND |
2019-05-21 | ND |
2019-05-21 | ND |
2019-05-21 | ND |
2019-05-21 | ND |
2019-05-21 | ND |
2019-08-23 | ND |
2019-11-19 | ND |