1,1,1,2-Tetrachloroethane
Medfield Water Department
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 | 33 | 0 | ND |
2015 | ND | 27 | 0 | ND |
2016 | ND | 19 | 0 | ND |
2017 | ND | 12 | 0 | ND |
2018 | ND | 12 | 0 | ND |
2019 | ND | 12 | 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 |
---|---|
2014-03-05 | ND |
2014-03-05 | ND |
2014-03-05 | ND |
2014-03-24 | ND |
2014-03-24 | ND |
2014-03-24 | ND |
2014-04-02 | ND |
2014-04-02 | ND |
2014-04-02 | ND |
2014-05-21 | ND |
2014-05-21 | ND |
2014-05-21 | ND |
2014-06-18 | ND |
2014-06-18 | ND |
2014-06-18 | ND |
2014-07-16 | ND |
2014-07-16 | ND |
2014-07-16 | ND |
2014-08-06 | ND |
2014-08-06 | ND |
2014-08-06 | ND |
2014-09-03 | ND |
2014-09-03 | ND |
2014-09-03 | ND |
2014-10-01 | ND |
2014-10-01 | ND |
2014-10-01 | ND |
2014-11-05 | ND |
2014-11-05 | ND |
2014-11-05 | ND |
2014-12-03 | ND |
2014-12-03 | ND |
2014-12-03 | ND |
2015-02-27 | ND |
2015-02-27 | ND |
2015-02-27 | ND |
2015-05-06 | ND |
2015-05-06 | ND |
2015-05-06 | ND |
2015-06-03 | ND |
2015-06-03 | ND |
2015-06-03 | ND |
2015-07-15 | ND |
2015-07-15 | ND |
2015-07-15 | ND |
2015-08-05 | ND |
2015-08-05 | ND |
2015-08-05 | ND |
2015-09-02 | ND |
2015-09-02 | ND |
2015-09-02 | ND |
2015-10-21 | ND |
2015-10-21 | ND |
2015-10-21 | ND |
2015-11-04 | ND |
2015-11-04 | ND |
2015-11-04 | ND |
2015-12-16 | ND |
2015-12-16 | ND |
2015-12-16 | ND |
2016-01-20 | ND |
2016-01-20 | ND |
2016-01-20 | ND |
2016-02-03 | ND |
2016-02-03 | ND |
2016-02-03 | ND |
2016-03-02 | ND |
2016-03-02 | ND |
2016-03-02 | ND |
2016-05-19 | ND |
2016-06-15 | ND |
2016-06-15 | ND |
2016-06-15 | ND |
2016-09-07 | ND |
2016-09-07 | ND |
2016-09-07 | ND |
2016-10-05 | ND |
2016-10-05 | ND |
2016-10-05 | ND |
2017-02-15 | ND |
2017-02-15 | ND |
2017-02-15 | ND |
2017-06-07 | ND |
2017-06-07 | ND |
2017-06-07 | ND |
2017-09-06 | ND |
2017-09-06 | ND |
2017-09-06 | ND |
2017-11-15 | ND |
2017-11-15 | ND |
2017-11-15 | ND |
2018-03-28 | ND |
2018-03-28 | ND |
2018-03-28 | ND |
2018-05-16 | ND |
2018-05-16 | ND |
2018-05-16 | ND |
2018-08-15 | ND |
2018-08-15 | ND |
2018-08-15 | ND |
2018-10-30 | ND |
2018-10-30 | ND |
2018-10-30 | ND |
2019-03-20 | ND |
2019-03-20 | ND |
2019-03-20 | ND |
2019-06-17 | ND |
2019-06-17 | ND |
2019-06-17 | ND |
2019-07-17 | ND |
2019-07-17 | ND |
2019-07-17 | ND |
2019-11-05 | ND |
2019-11-05 | ND |
2019-11-05 | ND |