1,1,2,2-Tetrachloroethane
City of Conroe
1,1,2,2-Tetrachloroethane is an industrial chemical which has been used as a metal degreaser, and in paint, paint removers, mothballs and pesticides. It damages the liver and nervous system, and may cause cancer.
Testing results - average by year
Year | Average result | Samples taken | Detections | Range of results |
---|---|---|---|---|
2014 | ND | 7 | 0 | ND |
2015 | ND | 10 | 0 | ND |
2016 | ND | 10 | 0 | ND |
2017 | ND | 12 | 0 | ND |
2018 | ND | 18 | 0 | ND |
2019 | ND | 12 | 0 | ND |
ppb = parts per billion
State and national drinking water standards and health guidelines
EWG Health Guideline 0.1 ppb
The EWG Health Guideline of 0.1 ppb for 1,1,2,2-tetrachloroethane was defined by the California Office of Environmental Health Hazard Assessment as a public health goal, the level of a drinking water contaminant that does not pose a significant health risk. This health guideline protects against cancer.
ppb = parts per billion
All test results
Date | Lab ID | Result |
---|---|---|
2014-04-09 | AC49949 | ND |
2014-04-09 | AC49939 | ND |
2014-04-09 | AC49941 | ND |
2014-04-09 | AC49943 | ND |
2014-05-28 | AC55337 | ND |
2014-05-29 | AC55486 | ND |
2014-05-29 | AC55490 | ND |
2015-01-21 | AC77053 | ND |
2015-01-21 | AC77055 | ND |
2015-01-21 | AC77049 | ND |
2015-01-21 | AC77045 | ND |
2015-01-21 | AC77051 | ND |
2015-01-21 | AC77057 | ND |
2015-01-21 | AC77091 | ND |
2015-01-21 | AC77047 | ND |
2015-01-21 | AC77059 | ND |
2015-01-21 | AC77061 | ND |
2016-01-11 | AD17314 | ND |
2016-01-11 | AD17316 | ND |
2016-01-11 | AD17332 | ND |
2016-01-11 | AD17346 | ND |
2016-01-11 | AD17350 | ND |
2016-01-11 | AD17330 | ND |
2016-01-11 | AD17312 | ND |
2016-01-11 | AD17342 | ND |
2016-01-11 | AD17318 | ND |
2016-01-11 | AD17324 | ND |
2017-01-09 | AD63583 | ND |
2017-01-09 | AD63611 | ND |
2017-01-09 | AD63589 | ND |
2017-04-11 | AD79236 | ND |
2017-04-11 | AD79240 | ND |
2017-04-11 | AD79238 | ND |
2017-05-18 | AD84887 | ND |
2017-05-18 | AD84885 | ND |
2017-05-18 | AD84891 | ND |
2017-05-18 | AD84881 | ND |
2017-05-18 | AD84883 | ND |
2017-05-18 | AD84889 | ND |
2018-01-10 | AE08679 | ND |
2018-01-10 | AE08677 | ND |
2018-01-10 | AE08675 | ND |
2018-01-10 | AE08633 | ND |
2018-01-10 | AE08635 | ND |
2018-01-10 | AE08669 | ND |
2018-01-10 | AE08671 | ND |
2018-01-10 | AE08673 | ND |
2018-01-10 | AE08691 | ND |
2018-01-10 | AE08681 | ND |
2018-03-08 | AE17593 | ND |
2018-03-08 | AE17549 | ND |
2018-05-08 | AE25593 | ND |
2018-05-08 | AE25595 | ND |
2018-07-02 | AE32217 | ND |
2018-07-02 | AE32255 | ND |
2018-10-01 | AE42247 | ND |
2018-10-01 | AE42245 | ND |
2019-03-11 | AE57865 | ND |
2019-03-11 | AE57839 | ND |
2019-03-11 | AE57841 | ND |
2019-03-11 | AE57861 | ND |
2019-03-11 | AE57851 | ND |
2019-03-11 | AE57843 | ND |
2019-04-08 | AE61428 | ND |
2019-04-08 | AE61442 | ND |
2019-04-08 | AE61424 | ND |
2019-04-08 | AE61422 | ND |
2019-04-08 | AE61426 | ND |
2019-10-15 | AE86661 | ND |