1,1,1,2-Tetrachloroethane
Salem 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 |
---|---|---|---|---|
2013 | N/A | 0 | 0 | N/A |
2014 | ND | 2 | 0 | ND |
2015 | ND | 2 | 0 | ND |
2016 | ND | 2 | 0 | ND |
2017 | ND | 2 | 0 | ND |
2018 | ND | 2 | 0 | ND |
2019 | ND | 2 | 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 |
---|---|---|
2014-02-19 | 1402-00360-001 | ND |
2014-07-22 | 1407-00658-001 | ND |
2015-03-09 | 1503-00536-001 | ND |
2015-08-18 | 1508-01552-001 | ND |
2016-03-07 | 1603-00674-001 | ND |
2016-07-07 | 1607-00564-001 | ND |
2017-02-22 | 1702-01614-001 | ND |
2017-07-18 | 1707-02043-001 | ND |
2018-02-15 | 1802-01345-001 | ND |
2018-07-02 | 1807-00228-001 | ND |
2019-02-07 | 1902-00602-001 | ND |
2019-07-11 | 1907-01496-001 | ND |