1,1,1,2-Tetrachloroethane
Wickson Creek SUD
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 | N/A | 0 | 0 | N/A |
2015 | ND | 4 | 0 | ND |
2016 | ND | 1 | 0 | ND |
2017 | ND | 1 | 0 | ND |
2018 | ND | 2 | 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 |
---|---|---|
2015-03-03 | AC82575 | ND |
2015-03-03 | AC82547 | ND |
2015-09-11 | AD06936 | ND |
2015-11-09 | AD13029 | ND |
2016-03-15 | AD28844 | ND |
2017-02-01 | AD68131 | ND |
2018-05-08 | AE25599 | ND |
2018-05-08 | AE25597 | ND |
2019-01-18 | AE50573 | ND |
2019-02-21 | AE55310 | ND |
2019-04-10 | AE61824 | ND |
2019-07-17 | AE74858 | ND |
2019-10-02 | AE85536 | ND |