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EWG's Tap Water Database — 2021 UPDATE

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1,1,2-Trichloroethane

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1,1,2-Trichloroethane is a volatile neurotoxic solvent used for manufacturing products such as plastic wrap and carpet backing. It causes liver tumors in animal studies. Read More.

The EPA classifies 1,1,2- trichloroethane as a possible human carcinogen. The California public health goal of 0.3 parts per billion, set to protect against cancer, is 16 times lower than the amount allowed by the federal government, which is a Maximum Contaminant Level of 5 parts per billion.

Click here to read more about carcinogenic VOCs.

 

40

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND80ND
2015ND80ND
2016ND80ND
2017ND80ND
2018ND40ND
2019ND40ND

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 0.3 ppb

The EWG Health Guideline of 0.3 ppb for 1,1,2-trichloroethane 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.

EPA Maximum Contaminant
Level (MCL) 5 ppb

The legal limit for 1,1,2-trichloroethane, established in 1992, was based on analytical detection limits at the time that the standard was set. This limit may not fully protect against the risk of cancer due to 1,1,2-trichloroethane exposure.

ppb = parts per billion

All test results

Date Lab ID Result
2014-01-0824405801ND
2014-01-0824405701ND
2014-04-0225334601ND
2014-04-0225334501ND
2014-07-0926110301ND
2014-07-0926110201ND
2014-10-0127098701ND
2014-10-0127098801ND
2015-01-0712297077ND
2015-01-0712297056ND
2015-04-1512642926ND
2015-04-1512642905ND
2015-07-1513023164ND
2015-07-1513023143ND
2015-10-0613399422ND
2015-10-0613399443ND
2016-01-0513763241ND
2016-01-0513763262ND
2016-04-0514115634ND
2016-04-0514115655ND
2016-07-0114583668ND
2016-07-0114583689ND
2016-10-0515088566ND
2016-10-0515088545ND
2017-01-0515529631ND
2017-01-0515529652ND
2017-04-0515950752ND
2017-04-0515950773ND
2017-07-0716426355ND
2017-07-0716426376ND
2017-10-0516892556ND
2017-10-0516892577ND
2018-01-1038158601ND
2018-04-0439069901ND
2018-07-0340201501ND
2018-10-0441308901ND
2019-01-0942495701ND
2019-04-1043656201ND
2019-07-1645013801ND
2019-10-1046829601ND