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EWG's Tap Water Database — 2019 UPDATE

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Trichloroethylene

Tract 349 Mutual Water Co.

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.

 

48

Samples

0

Samples exceeding legal limit (MCL)

19

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20120.472 ppb64ND - 0.840 ppb
20130.237 ppb62ND - 0.790 ppb
20140.846 ppb54ND - 1.90 ppb
20150.103 ppb81ND - 0.820 ppb
20160.207 ppb104ND - 0.530 ppb
20170.418 ppb134ND - 3.80 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
2012-01-122706-002-08200.830 ppb
2012-01-232706-002-12300.840 ppb
2012-04-242706-002-09000.570 ppb
2012-07-122706-002-0835ND
2012-10-222706-003-1055ND
2012-10-222706-002-10400.590 ppb
2013-01-212706-002-1140ND
2013-04-162706-002-08200.630 ppb
2013-09-272706-002-08250.790 ppb
2013-10-102706-002-0914ND
2013-10-242706-002-0900ND
2013-10-242706-003-0930ND
2014-02-069588-002-09160.720 ppb
2014-04-169588-002-10151.10 ppb
2014-07-319588-002-09150.510 ppb
2014-12-099588-003-0914ND
2014-12-129588-002-09381.90 ppb
2015-03-209588-002-0930ND
2015-04-249588-002-0940ND
2015-07-309588-002-11330.820 ppb
2015-09-259588-002-0905ND
2015-10-239588-002-0932ND
2015-10-269588-003-0929ND
2015-11-209588-002-0900ND
2015-12-189588-002-1123ND
2016-01-299588-003-0900ND
2016-03-299588-002-0926ND
2016-05-279588-002-0915ND
2016-06-249588-002-0901ND
2016-07-229588-002-09390.500 ppb
2016-08-269588-002-09200.520 ppb
2016-09-169588-002-0916ND
2016-10-149588-002-09300.520 ppb
2016-11-049588-002-1000ND
2016-12-099588-002-09350.530 ppb
2017-01-279588-002-0920ND
2017-02-109588-002-0850ND
2017-02-249588-003-0910ND
2017-03-109588-002-0925ND
2017-04-219588-002-0907ND
2017-05-199588-002-0855ND
2017-06-239588-002-09303.80 ppb
2017-07-149588-002-09150.580 ppb
2017-08-189588-002-09300.560 ppb
2017-09-229588-002-09250.500 ppb
2017-10-279588-002-0950ND
2017-11-179588-002-1115ND
2017-12-089588-002-0901ND