1,1,1,2-Tetrachloroethane
South Weare Water
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 | 1 | 0 | ND |
2018 | ND | 1 | 0 | ND |
2019 | N/A | 0 | 0 | N/A |
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 |
---|---|---|
2014-09-26 | 3409-2326 | ND |
2014-12-31 | 3501-2 | ND |
2015-03-31 | 3503-2289 | ND |
2015-06-30 | 3506-3124 | ND |
2015-09-27 | 3509-2643-1 | ND |
2016-06-30 | 3607-96-1 | ND |
2016-12-31 | 3612-2018-2 | ND |
2017-04-09 | 3704-823-1 | ND |
2018-10-25 | 1810-03418-001 | ND |