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EWG's Tap Water Database — 2021 UPDATE

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1,1,2,2-Tetrachloroethane

Red Oak Ranch Water System

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.

 

13

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND20ND
2015ND30ND
2016ND20ND
2017ND20ND
2018ND20ND
2019ND20ND

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
2014-06-26AC58243ND
2014-06-26AC58225ND
2015-03-18AC85027ND
2015-03-18AC85021ND
2015-04-22AC89222ND
2016-06-02AD39197ND
2016-06-02AD39191ND
2017-07-31AD91375ND
2017-07-31AD91389ND
2018-07-25AE34524ND
2018-07-25AE34520ND
2019-08-15AE78950ND
2019-08-15AE78962ND