1,1,1,2-Tetrachloroethane
Montecito 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 | ND | 4 | 0 | ND |
2016 | N/A | 0 | 0 | N/A |
2017 | N/A | 0 | 0 | N/A |
2018 | ND | 3 | 0 | ND |
2019 | ND | 1 | 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 |
---|---|---|
2015-05-11 | 5867-001-1203 | ND |
2015-05-11 | 5867-003-1141 | ND |
2015-05-11 | 5867-005-1128 | ND |
2015-05-11 | 5867-040-1110 | ND |
2018-06-25 | 5867-001-1005 | ND |
2018-06-25 | 5867-003-0950 | ND |
2018-06-25 | 5867-005-0925 | ND |
2019-03-01 | 5867-040-0830 | ND |