1,1,1,2-Tetrachloroethane
Bristol 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 |
---|---|---|---|---|
2014 | ND | 4 | 0 | ND |
2015 | ND | 4 | 0 | ND |
2016 | ND | 4 | 0 | ND |
2017 | ND | 4 | 0 | ND |
2018 | ND | 4 | 0 | ND |
2019 | ND | 4 | 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 |
---|---|---|
2014-01-10 | E401597-2VOC | ND |
2014-01-10 | E401597-3VOC | ND |
2014-01-10 | E401597-4VOC | ND |
2014-01-10 | E401597-1VOC | ND |
2015-03-09 | E503529-1VOC | ND |
2015-03-09 | E503529-4VOC | ND |
2015-03-09 | E503529-3VOC | ND |
2015-03-09 | E503529-2VOC | ND |
2016-03-11 | E603B92-1VOC | ND |
2016-03-11 | E603B92-4VOC | ND |
2016-03-11 | E603B92-3VOC | ND |
2016-03-11 | E603B92-2VOC | ND |
2017-05-04 | D7E0514-01VOC | ND |
2017-05-04 | D7E0514-02VOC | ND |
2017-05-04 | D7E0514-03VOC | ND |
2017-05-04 | D7E0514-04VOC | ND |
2018-01-10 | D8A0568-01VOC | ND |
2018-01-10 | D8A0568-04VOC | ND |
2018-01-10 | D8A0568-03VOC | ND |
2018-01-10 | D8A0568-02VOC | ND |
2019-10-28 | D9J2584-01VOC | ND |
2019-10-28 | D9J2584-04VOC | ND |
2019-10-28 | D9J2584-03VOC | ND |
2019-10-28 | D9J2584-02VOC | ND |