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EWG's Tap Water Database

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Trichloroethylene

Del-Co Water Company Inc.

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.

 

31

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2010ND60ND
2011ND80ND
2012ND60ND
2013ND30ND
2014ND50ND
2015ND30ND

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 health risk limit, the concentration of a contaminant that can be consumed with little or no risk to health. 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 Lab ID Result
2010-02-0810183701ND
2010-02-0810183801ND
2010-05-04103818-03ND
2010-06-07104726-02AND
2010-08-23106930-01ND
2010-11-02108817-01ND
2011-02-0811-10846-02ND
2011-02-0811-10844-02ND
2011-04-2111-12661-01ND
2011-05-0311-12909-02ND
2011-06-1511-14240-01BND
2011-07-0611-14775-01ND
2011-08-0211-15630-01ND
2011-11-0811-19356-03ND
2012-01-0912-10323-01BND
2012-01-0912-10322-01BND
2012-04-0312-13549-02ND
2012-05-3012-16037-03BND
2012-07-0312-17808-01ND
2012-10-0212-22459-01ND
2013-01-0813-10283-01BND
2013-01-0813-10282-01BND
2013-06-1013-17185-01BND
2014-01-0714-10164-03BND
2014-01-0714-10161-03BND
2014-01-0714-10165-01BND
2014-05-0714-15406-01BND
2014-06-3014-18397-01BND
2015-01-0515-10021-01BND
2015-01-0515-10022-01BND
2015-06-0815-17517-01BND