1,1,1,2-Tetrachloroethane
Sneedville Utility District
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 | 1 | 0 | ND |
2015 | ND | 4 | 0 | ND |
2016 | ND | 2 | 0 | ND |
2017 | ND | 4 | 0 | ND |
2018 | ND | 4 | 0 | ND |
2019 | ND | 4 | 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 |
---|---|
2014-04-01 | ND |
2015-04-06 | ND |
2015-06-02 | ND |
2015-07-06 | ND |
2015-10-05 | ND |
2016-01-05 | ND |
2016-04-05 | ND |
2017-03-09 | ND |
2017-05-02 | ND |
2017-07-06 | ND |
2017-10-02 | ND |
2018-01-02 | ND |
2018-04-03 | ND |
2018-07-02 | ND |
2018-10-10 | ND |
2019-03-19 | ND |
2019-04-01 | ND |
2019-07-01 | ND |
2019-10-01 | ND |