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EWG's Tap Water Database — 2021 UPDATE

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1,1,2,2-Tetrachloroethane

Maywood Mutual Water Company #3

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.

MORE ABOUT THIS CONTAMINANT

 

32

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND60ND
2015ND50ND
2016ND60ND
2017ND50ND
2018ND50ND
2019ND50ND

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
2014-01-249588-009-1340ND
2014-01-249588-004-1412ND
2014-04-229588-004-0913ND
2014-07-179588-004-1010ND
2014-11-259588-009-1445ND
2014-12-109588-004-0924ND
2015-01-279588-004-0943ND
2015-01-279588-009-0930ND
2015-04-079588-004-1212ND
2015-07-289588-004-0942ND
2015-10-279588-004-0947ND
2016-03-239588-004-1014ND
2016-03-239588-009-1027ND
2016-05-049588-004-1010ND
2016-05-049588-009-0952ND
2016-08-169588-004-0951ND
2016-10-119588-004-1010ND
2017-01-139588-004-0940ND
2017-01-139588-009-0955ND
2017-04-059588-004-0930ND
2017-07-119588-004-0946ND
2017-10-129588-004-0935ND
2018-01-259588-009-0945ND
2018-01-259588-004-0930ND
2018-04-109588-004-0950ND
2018-07-279588-004-0900ND
2018-10-309588-004-0939ND
2019-01-299588-004-1030ND
2019-01-299588-009-0940ND
2019-05-039588-004-0910ND
2019-07-169588-004-0945ND
2019-10-299588-004-1020ND