1,1,1,2-Tetrachloroethane
Cambridge Water & Sewer Utility
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 | 3 | 0 | ND |
2016 | ND | 2 | 0 | ND |
2017 | ND | 2 | 0 | ND |
2018 | ND | 1 | 0 | ND |
2019 | ND | 5 | 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 |
---|---|---|
2014-04-23 | 128940001 | ND |
2014-04-23 | 128941001 | ND |
2014-07-28 | 147669001 | ND |
2014-09-10 | 156274001 | ND |
2015-08-12 | 211361001 | ND |
2015-08-18 | 212348001 | ND |
2015-09-23 | 219678001 | ND |
2016-09-20 | 278686001 | ND |
2016-09-21 | 279278001 | ND |
2017-07-26 | 331335001 | ND |
2017-08-28 | 338281001 | ND |
2018-09-19 | 408952001 | ND |
2019-03-28 | 437574001 | ND |
2019-06-12 | 451408001 | ND |
2019-08-28 | 466375001 | ND |
2019-09-26 | 472880001 | ND |
2019-11-14 | 481531001 | ND |