1,1,1,2-Tetrachloroethane
Sky Harbour Water Supply Corporation
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 | 2 | 0 | ND |
2015 | ND | 3 | 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 |
---|---|---|
2014-09-25 | Q1448142003 | ND |
2014-09-25 | Q1448142004 | ND |
2015-03-03 | Q1507985010 | ND |
2015-03-03 | Q1507985013 | ND |
2015-06-23 | Q1523545004 | ND |
2016-11-14 | Q1649173002 | ND |
2016-11-14 | Q1649173003 | ND |
2017-12-14 | Q1766131001 | ND |
2017-12-14 | Q1766131004 | ND |
2018-10-15 | Q1840817001 | ND |
2018-10-15 | Q1840817004 | ND |
2019-05-13 | Q1923815001 | ND |
2019-05-13 | Q1923815003 | ND |