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EWG's Tap Water Database — 2019 UPDATE

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1,1,2,2-Tetrachloroethane

City of South Houston

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.

 

15

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012N/A00N/A
2013N/A00N/A
2014N/A00N/A
2015ND50ND
2016ND50ND
2017ND50ND

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
2015-01-21AC77109ND
2015-01-21AC77099ND
2015-01-21AC77093ND
2015-01-21AC77095ND
2015-01-21AC77101ND
2016-01-14AD18215ND
2016-01-14AD18219ND
2016-01-14AD18221ND
2016-01-14AD18205ND
2016-01-14AD18207ND
2017-01-06AD63617ND
2017-03-01AD72753ND
2017-03-01AD72765ND
2017-03-01AD72763ND
2017-03-01AD72785ND