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EWG's Tap Water Database — 2021 UPDATE

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1,1,2,2-Tetrachloroethane

Golden State Water Company - Lake Marie

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.

 

8

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND20ND
2015ND30ND
2016N/A00N/A
2017N/A00N/A
2018ND30ND
2019N/A00N/A

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
2014-06-112706-006-1035ND
2014-10-012706-008-1020ND
2015-01-072706-003-0805ND
2015-01-212706-008-0950ND
2015-06-242706-008-0955ND
2018-01-309590-006-0925ND
2018-01-309590-008-0855ND
2018-02-139590-008-0850ND