1,1,1,2-Tetrachloroethane
City of San Diego
1,1,1,2-Tetrachloroethane is a synthetic chemical used in metal degreasing and as an intermediate in industrial chemical production.
63
Samples
0
Samples exceeding legal limit (MCL)
0
Samples exceeding
health guidelines
Testing results - average by year
Year | Average result | Samples taken | Detections | Range of results |
---|---|---|---|---|
2013 | N/A | 0 | 0 | N/A |
2014 | ND | 9 | 0 | ND |
2015 | ND | 11 | 0 | ND |
2016 | ND | 12 | 0 | ND |
2017 | ND | 9 | 0 | ND |
2018 | ND | 16 | 0 | ND |
2019 | ND | 6 | 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 |
---|---|---|
2014-02-05 | 9437-010-0000 | ND |
2014-02-05 | 9437-006-0000 | ND |
2014-02-05 | 9437-001-0000 | ND |
2014-05-07 | 9437-010-0000 | ND |
2014-05-07 | 9437-006-0000 | ND |
2014-05-07 | 9437-001-0000 | ND |
2014-11-05 | 9437-010-0000 | ND |
2014-11-05 | 9437-006-0000 | ND |
2014-11-05 | 9437-001-0000 | ND |
2015-02-04 | 9437-001-0000 | ND |
2015-02-04 | 9437-010-0000 | ND |
2015-05-06 | 9437-001-0000 | ND |
2015-05-06 | 9437-010-0000 | ND |
2015-05-06 | 9437-006-0000 | ND |
2015-08-05 | 9437-001-0000 | ND |
2015-08-05 | 9437-006-0000 | ND |
2015-08-05 | 9437-010-0000 | ND |
2015-11-18 | 9437-001-0000 | ND |
2015-11-18 | 9437-006-0000 | ND |
2015-11-18 | 9437-010-0000 | ND |
2016-02-08 | 9437-001-0000 | ND |
2016-02-08 | 9437-006-0000 | ND |
2016-02-08 | 9437-010-0000 | ND |
2016-05-04 | 9437-010-0000 | ND |
2016-05-04 | 9437-001-0000 | ND |
2016-05-04 | 9437-006-0000 | ND |
2016-08-04 | 9437-001-0000 | ND |
2016-08-04 | 9437-010-0000 | ND |
2016-08-04 | 9437-006-0000 | ND |
2016-11-02 | 9437-001-0000 | ND |
2016-11-02 | 9437-010-0000 | ND |
2016-11-02 | 9437-006-0000 | ND |
2017-02-01 | 9437-001-0000 | ND |
2017-02-01 | 9437-010-0000 | ND |
2017-02-01 | 9437-006-0000 | ND |
2017-05-03 | 9437-006-0000 | ND |
2017-05-03 | 9437-010-0000 | ND |
2017-05-03 | 9437-001-0000 | ND |
2017-11-01 | 9437-010-0000 | ND |
2017-11-01 | 9437-001-0000 | ND |
2017-11-01 | 9437-006-0000 | ND |
2018-02-07 | 9437-010-0000 | ND |
2018-02-07 | 9437-030-0000 | ND |
2018-02-07 | 9437-001-0000 | ND |
2018-02-07 | 9437-006-0000 | ND |
2018-05-09 | 9437-030-0000 | ND |
2018-05-21 | 9437-010-0000 | ND |
2018-05-21 | 9437-006-0000 | ND |
2018-05-21 | 9437-001-0000 | ND |
2018-08-01 | 9437-010-0000 | ND |
2018-08-01 | 9437-001-0000 | ND |
2018-08-01 | 9437-006-0000 | ND |
2018-09-05 | 9437-030-0000 | ND |
2018-11-14 | 9437-030-0000 | ND |
2018-11-14 | 9437-006-0000 | ND |
2018-11-14 | 9437-001-0000 | ND |
2018-11-14 | 9437-010-0000 | ND |
2019-05-08 | 9437-006-0000 | ND |
2019-05-08 | 9437-010-0000 | ND |
2019-05-08 | 9437-001-0000 | ND |
2019-08-07 | 9437-006-0000 | ND |
2019-08-07 | 9437-010-0000 | ND |
2019-08-07 | 9437-001-0000 | ND |