1,1,1,2-Tetrachloroethane
Walnut Park Mutual Water Company
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 | 3 | 0 | ND |
2015 | ND | 3 | 0 | ND |
2016 | ND | 3 | 0 | ND |
2017 | ND | 3 | 0 | ND |
2018 | ND | 3 | 0 | ND |
2019 | ND | 3 | 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 |
---|---|---|
2014-01-24 | 9588-003-0940 | ND |
2014-04-11 | 9588-004-0930 | ND |
2014-12-16 | 9588-008-1017 | ND |
2015-01-30 | 9588-003-0919 | ND |
2015-04-22 | 9588-004-1003 | ND |
2015-10-21 | 9588-008-0950 | ND |
2016-01-20 | 9588-003-0945 | ND |
2016-06-22 | 9588-004-0950 | ND |
2016-10-19 | 9588-008-0000 | ND |
2017-01-18 | 9588-003-1005 | ND |
2017-04-20 | 9588-004-0940 | ND |
2017-10-17 | 9588-008-0749 | ND |
2018-01-16 | 9588-003-0754 | ND |
2018-04-17 | 9588-004-0709 | ND |
2018-12-18 | 9588-008-0800 | ND |
2019-01-24 | 9588-008-0839 | ND |
2019-01-24 | 9588-003-0750 | ND |
2019-04-23 | 9588-004-0850 | ND |