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EWG's Tap Water Database — 2019 UPDATE

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Trichloroethylene

Aqua Pa Uwchlan

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.

 

36

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012ND60ND
2013ND60ND
2014ND60ND
2015ND60ND
2016ND60ND
2017ND60ND

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 0.4 ppb

The EWG 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.

EPA Maximum Contaminant
Level (MCL) 5 ppb

The legal limit for trichloroethylene, established in 1987, was based on analytical detection limits at the time that the standard was set. This limit does not fully protect against the risk of cancer and harm to the developing fetus.

ppb = parts per billion

All test results

Date Lab ID Result
2012-02-06AD37757ND
2012-02-06AD37758ND
2012-02-23AD39504ND
2012-02-23AD39503ND
2012-02-29AD39501ND
2012-05-25AD49447ND
2013-02-05AD79498ND
2013-02-05AD79499ND
2013-02-20AD80828ND
2013-02-20AD80829ND
2013-03-05AD82342ND
2013-05-21AD90752ND
2014-02-06AE22430ND
2014-02-14AE22385ND
2014-02-14AE22387ND
2014-02-21AE23946ND
2014-02-21AE23943ND
2014-04-23AE29861ND
2015-02-0312395462ND
2015-02-0312395546ND
2015-02-0312395504ND
2015-02-0312395525ND
2015-02-0412395441ND
2015-02-0412395483ND
2016-01-2213746223ND
2016-01-2213746244ND
2016-01-2213746265ND
2016-01-2213746286ND
2016-02-1013864190ND
2016-02-1013864211ND
2017-03-2815787963ND
2017-03-2815787984ND
2017-04-1915928770ND
2017-04-1915928791ND
2017-04-2115928749ND
2017-06-2116249814ND