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EWG's Tap Water Database — 2019 UPDATE

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Trichloroethylene

Pico WD

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.

 

54

Samples

0

Samples exceeding legal limit (MCL)

26

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20120.341 ppb144ND - 1.50 ppb
20130.542 ppb105ND - 1.20 ppb
20140.449 ppb84ND - 1.10 ppb
20150.436 ppb74ND - 0.860 ppb
20160.414 ppb85ND - 0.810 ppb
20170.416 ppb74ND - 0.820 ppb

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
2012-03-139588-006-0940ND
2012-03-139588-004-0925ND
2012-03-139588-009-0950ND
2012-03-149588-002-0930ND
2012-03-149588-011-09451.20 ppb
2012-05-099588-002-0945ND
2012-05-099588-011-09551.50 ppb
2012-08-179588-009-0927ND
2012-08-179588-006-0914ND
2012-08-179588-011-08581.10 ppb
2012-08-219588-004-0810ND
2012-12-129588-009-0937ND
2012-12-129588-004-1132ND
2012-12-129588-011-10190.980 ppb
2013-01-309588-011-08501.20 ppb
2013-03-219588-009-0942ND
2013-03-219588-006-0930ND
2013-03-269588-011-09550.980 ppb
2013-03-269588-004-1140ND
2013-03-269588-002-1040ND
2013-06-269588-011-09001.10 ppb
2013-09-309588-011-09300.940 ppb
2013-12-069588-011-13201.20 ppb
2013-12-139588-006-1015ND
2014-01-069588-011-07450.960 ppb
2014-03-209588-002-0930ND
2014-03-209588-006-1000ND
2014-03-209588-009-1008ND
2014-03-209588-004-0936ND
2014-06-209588-011-09501.10 ppb
2014-08-229588-011-10050.810 ppb
2014-10-239588-011-09400.720 ppb
2015-03-189588-004-0831ND
2015-03-189588-006-0819ND
2015-03-189588-009-0806ND
2015-03-189588-011-07550.750 ppb
2015-06-229588-011-08370.860 ppb
2015-08-269588-011-09570.750 ppb
2015-12-239588-011-08230.690 ppb
2016-02-259588-011-08000.810 ppb
2016-03-149588-009-0915ND
2016-03-239588-004-0802ND
2016-03-239588-006-0816ND
2016-05-099588-011-08280.760 ppb
2016-08-109588-011-08250.580 ppb
2016-11-309588-011-08000.650 ppb
2016-12-229588-011-08370.510 ppb
2017-02-239588-011-08400.670 ppb
2017-03-209588-009-0910ND
2017-03-209588-004-1000ND
2017-03-209588-006-0920ND
2017-05-089588-011-08150.820 ppb
2017-08-249588-011-09240.760 ppb
2017-11-229588-011-08500.660 ppb