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EWG's Tap Water Database

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Trichloroethylene

Clearwater Water System

Trichloroethylene, an industrial solvent and common groundwater pollutant, damages the immune system, harms the developing fetus and causes cancer. Read More.

Trichloroethylene was once commonly used to remove grease from metal parts, such as steel pipes and engines, and as a solvent in dry cleaning and carpet cleaning products. Drinking trichloroethylene-contaminated drinking water has been linked with birth defects, leukemia, and liver and kidney damage. Trichloroethylene is highly volatile and can enter indoor air through water in pipes. If trichloroethylene is present, people can inhale it while bathing, washing dishes and doing other household activities that involve water.

Click here to read more about carcinogenic VOCs.

 

18

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2010ND30ND
2011ND30ND
2012ND30ND
2013ND30ND
2014ND10ND
2015ND50ND

ppb = parts per billion.

State and national drinking water standards and health guidelines

Health Guideline 0.4 ppb

The health guideline of 0.4 ppb for trichloroethylene was defined by the State of Minnesota as a a health risk limit, a non-enforceable guidance value. This health guideline protects against harm to the developing fetus and damage to the immune system.

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)0 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
2010-02-10ND
2010-02-10ND
2010-02-11ND
2011-02-16ND
2011-02-16ND
2011-02-16ND
2012-02-10ND
2012-02-10ND
2012-02-10ND
2013-02-01ND
2013-02-01ND
2013-02-01ND
2014-02-13ND
2015-01-13ND
2015-01-13ND
2015-05-07ND
2015-09-23ND
2015-11-18ND