1,1,1,2-Tetrachloroethane
Mountain Home Waterworks
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 | 1 | 0 | ND |
2015 | ND | 1 | 0 | ND |
2016 | ND | 1 | 0 | ND |
2017 | ND | 4 | 0 | ND |
2018 | ND | 3 | 0 | ND |
2019 | ND | 1 | 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 |
---|---|---|
2014-03-11 | 14072006502 | ND |
2015-02-24 | 15057000309 | ND |
2016-01-26 | 16029002302 | ND |
2017-01-23 | 17026000501 | ND |
2017-04-04 | 17095001102 | ND |
2017-07-04 | 17187008501 | ND |
2017-10-03 | 17278012701 | ND |
2018-01-09 | 18010003109 | ND |
2018-04-03 | 18094001809 | ND |
2018-07-02 | 18186010201 | ND |
2019-01-09 | 19010011302 | ND |