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EWG's Tap Water Database — 2021 UPDATE

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1,1,2-Trichloroethane

Stratford Harbour

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.

 

45

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND130ND
2015ND120ND
2016ND120ND
2017ND30ND
2018ND30ND
2019ND20ND

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
2014-01-1424444101ND
2014-01-1424444301ND
2014-01-1424443901ND
2014-04-2125150301ND
2014-04-2125150101ND
2014-04-2125150201ND
2014-07-2126415201ND
2014-07-2126415501ND
2014-07-2126415301ND
2014-07-21201407310219-VOCND
2014-10-1427194101ND
2014-10-1427193901ND
2014-10-1427194001ND
2015-01-2900001_EXP-AMERICND
2015-01-2900001_EXP-AMERICND
2015-01-2900001_EXP-AMERICND
2015-04-2800001_EXP-AMERICND
2015-04-2800001_EXP-AMERICND
2015-04-2800001_EXP-AMERICND
2015-07-13460274-AMERICANND
2015-07-13460274-AMERICANND
2015-07-13460274-AMERICANND
2015-10-14460274-AMERICANND
2015-10-14460274-AMERICANND
2015-10-14460274-AMERICANND
2016-01-2831010401ND
2016-01-2831010601ND
2016-01-2831010801ND
2016-04-1931607101ND
2016-04-1931607201ND
2016-06-2931607301ND
2016-07-1932660801ND
2016-07-1932660701ND
2016-07-1932661001ND
2016-10-2433420101ND
2016-10-2433420001ND
2016-10-2433419901ND
2017-01-3034239801ND
2017-01-3034239601ND
2017-01-3034239401ND
2018-01-1638195401ND
2018-01-1638195501ND
2018-01-1638195701ND
2019-01-2842534701-VOCND
2019-01-2842534801-VOCND