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EWG's Tap Water Database — 2021 UPDATE

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1,1,2,2-Tetrachloroethane

Liberty Park Water Association

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

 

25

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND40ND
2015ND40ND
2016ND40ND
2017ND50ND
2018ND40ND
2019ND40ND

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
2014-01-284417-001-1350ND
2014-04-024417-001-1240ND
2014-08-064417-001-1220ND
2014-10-224417-001-1115ND
2015-01-054417-001-1150ND
2015-04-024417-001-1150ND
2015-07-014417-001-0840ND
2015-10-074417-001-1120ND
2016-01-134417-001-1215ND
2016-04-044417-001-1435ND
2016-07-054417-001-1400ND
2016-11-144417-001-1115ND
2017-01-044417-001-1300ND
2017-02-024417-001-1100ND
2017-04-244417-001-1120ND
2017-07-064417-001-1300ND
2017-10-034417-001-1140ND
2018-01-024417-001-1250ND
2018-04-044417-001-1300ND
2018-07-164417-001-1130ND
2018-10-014417-001-1340ND
2019-01-024417-001-1100ND
2019-04-014417-001-1300ND
2019-07-024417-001-0945ND
2019-10-014417-001-1230ND