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EWG's Tap Water Database — 2019 UPDATE

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Trichloroethylene

Warminster Municipal Authority

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.

 

82

Samples

0

Samples exceeding legal limit (MCL)

9

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20120.158 ppb173ND - 1.10 ppb
20130.104 ppb172ND - 1.000 ppb
20140.0372 ppb181ND - 0.670 ppb
20150.0723 ppb131ND - 0.940 ppb
20160.109 ppb142ND - 0.930 ppb
2017ND30ND

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
2012-01-1099466920060.590 ppb
2012-01-1099466920120.990 ppb
2012-01-109946692003ND
2012-01-109946692011ND
2012-01-109946692005ND
2012-01-109946692010ND
2012-01-109946692013ND
2012-01-109946692009ND
2012-01-109946692007ND
2012-01-109946692008ND
2012-01-109946692001ND
2012-01-109946692015ND
2012-01-109946692002ND
2012-01-109946692004ND
2012-01-109946692014ND
2012-02-0999517190011.10 ppb
2012-02-099951720001ND
2013-01-031006062011ND
2013-01-031006062017ND
2013-01-031006062013ND
2013-01-031006062012ND
2013-01-031006062016ND
2013-01-0310060620140.760 ppb
2013-01-031006062006ND
2013-01-031006062015ND
2013-01-031006062010ND
2013-01-031006062005ND
2013-01-0310060620041.000 ppb
2013-01-031006062001ND
2013-01-031006062007ND
2013-01-031006062003ND
2013-01-031006062008ND
2013-01-031006062002ND
2013-01-031006062009ND
2014-01-071066362015ND
2014-01-071066362003ND
2014-01-071066362004ND
2014-01-071066362016ND
2014-01-071066362005ND
2014-01-071066362014ND
2014-01-071066362009ND
2014-01-071066362010ND
2014-01-071066362017ND
2014-01-071066362011ND
2014-01-071066362001ND
2014-01-071066362012ND
2014-01-071066362007ND
2014-01-0710663620130.670 ppb
2014-01-071066362006ND
2014-01-071066362002ND
2014-01-171068194001ND
2014-01-271069260001ND
2015-01-05121609230.940 ppb
2015-01-0812273836ND
2015-01-0812273815ND
2015-01-0812273689ND
2015-01-0812273794ND
2015-01-0812273773ND
2015-01-0812273752ND
2015-01-0812273731ND
2015-01-0812273710ND
2015-01-0812273668ND
2015-01-0812273647ND
2015-01-0812273626ND
2015-01-0812273605ND
2016-01-1113740465ND
2016-01-1113740549ND
2016-01-11137404860.590 ppb
2016-01-1113740402ND
2016-01-1113740507ND
2016-01-1113740444ND
2016-01-1113740528ND
2016-01-1113740339ND
2016-01-1113740297ND
2016-01-1113740381ND
2016-01-11137403600.930 ppb
2016-01-1113740318ND
2016-01-1113740423ND
2016-03-0313857834ND
2017-01-2515501829ND
2017-03-0915781153ND
2017-03-2916865876ND