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EWG's Tap Water Database

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1,1,2-Trichloroethane

Arapahoe Cnty Wwwa

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.

 

23

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2010ND70ND
2011ND40ND
2012ND70ND
2013ND10ND
2014ND30ND
2015ND10ND

ppb = parts per billion.

State and national drinking water standards and health guidelines

Health Guideline 0.3 ppb

The 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.

ppb = parts per billion.

EPA Maximum Contaminant
Level (MCL) 5 ppb

The enforceable federal standard that defines the highest level of a contaminant allowed in drinking water.

ppb = parts per billion.

EPA Maximum Contaminant
Level Goal (MCLG)3 ppb

A non-enforceable federal health guideline. For cancer-causing chemicals, these health goals are typically set to zero.

ppb = parts per billion.

All test results

Date Result
2010-01-25ND
2010-01-25ND
2010-01-25ND
2010-02-01ND
2010-02-01ND
2010-04-05ND
2010-04-05ND
2011-01-19ND
2011-04-01ND
2011-04-01ND
2011-04-01ND
2012-01-13ND
2012-01-13ND
2012-01-23ND
2012-01-23ND
2012-04-06ND
2012-04-06ND
2012-04-09ND
2013-01-08ND
2014-01-21ND
2014-11-11ND
2014-12-08ND
2015-10-28ND