1,1,1,2-Tetrachloroethane
Borrego Water District
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 | N/A | 0 | 0 | N/A |
2016 | N/A | 0 | 0 | N/A |
2017 | N/A | 0 | 0 | N/A |
2018 | N/A | 0 | 0 | N/A |
2019 | ND | 7 | 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 |
---|---|---|
2019-04-02 | 4790-006-0810 | ND |
2019-04-02 | 4790-008-0845 | ND |
2019-04-02 | 4790-010-0711 | ND |
2019-04-02 | 4790-012-0645 | ND |
2019-04-02 | 4790-015-0658 | ND |
2019-04-02 | 4790-020-0830 | ND |
2019-05-22 | 4790-007-0651 | ND |