1,1,1,2-Tetrachloroethane
Camrosa 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 |
---|---|---|---|---|
2013 | N/A | 0 | 0 | N/A |
2014 | ND | 1 | 0 | ND |
2015 | N/A | 0 | 0 | N/A |
2016 | ND | 5 | 0 | ND |
2017 | ND | 5 | 0 | ND |
2018 | ND | 3 | 0 | ND |
2019 | ND | 4 | 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 |
---|---|---|
2014-06-25 | 5867-009-1005 | ND |
2016-01-12 | 5867-001-1027 | ND |
2016-01-12 | 5867-007-1002 | ND |
2016-01-20 | 5867-006-1002 | ND |
2016-04-19 | 5867-010-0937 | ND |
2016-07-11 | 5867-011-0924 | ND |
2017-03-27 | 5867-008-1410 | ND |
2017-07-13 | 5867-007-1400 | ND |
2017-07-13 | 5867-009-1510 | ND |
2017-07-13 | 5867-006-1416 | ND |
2017-07-13 | 5867-001-1428 | ND |
2018-07-17 | 5867-007-0910 | ND |
2018-07-17 | 5867-006-0910 | ND |
2018-07-17 | 5867-001-0910 | ND |
2019-08-21 | 5867-006-1021 | ND |
2019-08-21 | 5867-007-1258 | ND |
2019-08-21 | 5867-001-1148 | ND |
2019-08-21 | 5867-011-1002 | ND |