1,1,1,2-Tetrachloroethane
Bridgeport Utilities Board
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 | 1 | 0 | ND |
2016 | ND | 1 | 0 | ND |
2017 | ND | 1 | 0 | ND |
2018 | ND | 1 | 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 |
---|---|---|
2014-08-06 | AC78489 | ND |
2014-11-05 | AC88436 | ND |
2015-08-12 | AD17813 | ND |
2016-08-03 | 1609871-1 | ND |
2017-07-19 | 1710065-2 | ND |
2018-09-05 | L1023549-02 | ND |
2019-06-26 | L1112949-01 | ND |
2019-07-31 | L1124032-01 | ND |