1,1,1,2-Tetrachloroethane
Athol DPW Water Division
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 | 5 | 0 | ND |
2015 | ND | 4 | 0 | ND |
2016 | ND | 5 | 0 | ND |
2017 | ND | 4 | 0 | ND |
2018 | ND | 6 | 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 | Result |
---|---|
2014-02-04 | ND |
2014-02-04 | ND |
2014-06-03 | ND |
2014-08-05 | ND |
2014-10-21 | ND |
2015-04-20 | ND |
2015-04-21 | ND |
2015-07-21 | ND |
2015-10-20 | ND |
2016-02-16 | ND |
2016-02-16 | ND |
2016-05-17 | ND |
2016-08-16 | ND |
2016-10-18 | ND |
2017-01-03 | ND |
2017-02-21 | ND |
2017-05-16 | ND |
2017-10-16 | ND |
2018-02-20 | ND |
2018-03-05 | ND |
2018-05-15 | ND |
2018-05-15 | ND |
2018-07-17 | ND |
2018-10-23 | ND |
2019-02-05 | ND |
2019-02-05 | ND |
2019-05-07 | ND |
2019-07-16 | ND |
2019-11-19 | ND |