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EWG's Tap Water Database — 2021 UPDATE

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Trichloroethylene

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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.

MORE ABOUT THIS CONTAMINANT

 

279

Samples

0

Samples exceeding legal limit (MCL)

32

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20140.133 ppb5210ND - 1.10 ppb
20150.128 ppb506ND - 1.40 ppb
20160.175 ppb488ND - 1.70 ppb
20170.179 ppb508ND - 1.99 ppb
2018ND400ND
2019ND390ND

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
2014-01-27V1403081ND
2014-03-04V14077281.10 ppb
2014-03-04V1407716ND
2014-03-04V1407723ND
2014-03-04V1407722ND
2014-03-04V1407720ND
2014-03-04V1407727ND
2014-03-04V1407726ND
2014-03-04V1407731ND
2014-03-04V1407735ND
2014-06-05V1420376ND
2014-06-06V1420572ND
2014-06-06V1420554ND
2014-06-06V1420558ND
2014-06-06V1420556ND
2014-06-06V1420560ND
2014-06-09V1420779ND
2014-06-09V1420782ND
2014-06-09V1420772ND
2014-06-10V1421072ND
2014-06-10V1421074ND
2014-06-10V1421075ND
2014-06-12V1421498ND
2014-06-17V1422331ND
2014-06-25V1423528ND
2014-06-25V14235270.800 ppb
2014-07-01V1424562ND
2014-07-01V1424565ND
2014-07-16V1427066ND
2014-07-16V14270620.600 ppb
2014-07-16V1427060ND
2014-07-17V1427226ND
2014-07-30V1429108ND
2014-07-30V1429107ND
2014-07-30V1429113ND
2014-07-30V1429111ND
2014-08-05V1429865ND
2014-08-05V1429867ND
2014-08-05V1429864ND
2014-08-11V1430897ND
2014-08-11V1430896ND
2014-08-11V14309010.500 ppb
2014-08-11V14309000.700 ppb
2014-08-19V14322860.800 ppb
2014-08-19V14322840.500 ppb
2014-08-19V1432281ND
2014-08-19V1432280ND
2014-09-11V14360090.700 ppb
2014-09-11V14360080.500 ppb
2014-10-21V14417230.700 ppb
2014-10-22V1442094ND
2014-10-22V1442095ND
2015-03-06V1508656ND
2015-03-06V1508657ND
2015-03-06V1508658ND
2015-03-06V1508659ND
2015-03-06V1508661ND
2015-03-09V1508867ND
2015-03-09V1508865ND
2015-03-09V1508862ND
2015-05-12V1518150ND
2015-05-21V1519718ND
2015-05-27V1520478ND
2015-05-28V1520655ND
2015-05-28V1520651ND
2015-05-28V1520653ND
2015-06-04V1521776ND
2015-06-04V1521779ND
2015-06-09V15225321.20 ppb
2015-06-12V1523057ND
2015-06-15V15231880.500 ppb
2015-06-15V1523185ND
2015-06-15V1523190ND
2015-06-16V1523455ND
2015-06-19V1524237ND
2015-06-24V1525293ND
2015-07-07V1527129ND
2015-07-07V15271281.40 ppb
2015-07-07V1527126ND
2015-07-15V1528678ND
2015-07-15V1528675ND
2015-07-15V1528673ND
2015-07-17V15290981.10 ppb
2015-07-17V1529097ND
2015-07-17V1529094ND
2015-07-23V1530010ND
2015-07-23V1530004ND
2015-07-23V1530002ND
2015-07-24V1530231ND
2015-08-05V1532425ND
2015-08-05V1532430ND
2015-08-06V1532699ND
2015-08-12V15336931.20 ppb
2015-08-12V1533691ND
2015-08-12V1533689ND
2015-09-30V15418971.000 ppb
2015-09-30V1541895ND
2015-09-30V1541893ND
2015-10-20V1545308ND
2015-10-22V1545881ND
2015-11-17V1549695ND
2015-12-17V1554326ND
2016-02-02V1604466ND
2016-03-30V1612757ND
2016-03-30V1612756ND
2016-03-30V1612755ND
2016-03-31V1612950ND
2016-03-31V1612951ND
2016-04-29V1617992ND
2016-06-23V1627644ND
2016-06-23V1627653ND
2016-06-23V1627652ND
2016-06-23V1627654ND
2016-06-23V1627647ND
2016-06-23V1627649ND
2016-06-24V1627836ND
2016-06-24V1627834ND
2016-06-24V1627838ND
2016-06-27V1628122ND
2016-06-28V1628437ND
2016-06-28V1628439ND
2016-06-28V1628441ND
2016-06-28V1628434ND
2016-06-29V1628657ND
2016-06-29V1628653ND
2016-06-30V16287581.10 ppb
2016-06-30V16287570.600 ppb
2016-07-06V1629588ND
2016-07-06V1629581ND
2016-07-06V1629587ND
2016-07-07V1629728ND
2016-07-07V1629732ND
2016-07-07V1629731ND
2016-07-13V1630839ND
2016-07-13V16308421.20 ppb
2016-07-13V16308400.700 ppb
2016-07-15V1631434ND
2016-08-03V1634927ND
2016-08-03V1634925ND
2016-08-03V1634932ND
2016-08-03V1634929ND
2016-08-15V16367711.30 ppb
2016-08-15V16367700.700 ppb
2016-08-25V1638558ND
2016-10-03V1645225ND
2016-10-03V1645226ND
2016-10-03V1645228ND
2016-10-03V1645230ND
2016-10-03V16452221.10 ppb
2016-10-03V16452231.70 ppb
2017-01-30V1703582ND
2017-03-13V1709899ND
2017-03-13V1709900ND
2017-03-13V1709901ND
2017-03-14V1710134ND
2017-03-14V1710140ND
2017-04-25V1716422ND
2017-05-30V1722579ND
2017-05-30V1722577ND
2017-05-30V1722576ND
2017-05-30V1722574ND
2017-05-31V1722760ND
2017-05-31V1722753ND
2017-05-31V1722763ND
2017-05-31V1722761ND
2017-05-31V17227621.11 ppb
2017-06-06V1723655ND
2017-06-06V1723654ND
2017-06-19V1726108ND
2017-06-19V1726109ND
2017-06-21V1726771ND
2017-06-22V1726962ND
2017-06-22V1726965ND
2017-06-22V1726964ND
2017-06-26V1727440ND
2017-07-10V17298740.590 ppb
2017-07-10V17298751.35 ppb
2017-07-10V1729872ND
2017-07-10V1729867ND
2017-07-11V1730134ND
2017-07-11V1730135ND
2017-07-11V1730137ND
2017-07-17V17313070.820 ppb
2017-07-17V17313091.99 ppb
2017-07-17V1731301ND
2017-07-17V1731302ND
2017-07-19V17319410.740 ppb
2017-07-19V17319431.75 ppb
2017-07-20V1732221ND
2017-07-20V17322190.610 ppb
2017-08-03V1734567ND
2017-08-03V1734565ND
2017-08-04V1734727ND
2017-08-14V1736477ND
2017-08-18V1737572ND
2017-08-22V1737899ND
2017-10-20V1749223ND
2017-11-15V1753300ND
2017-11-15V1753297ND
2017-12-19V1758928ND
2018-02-01V1804595ND
2018-02-01V1804593ND
2018-02-05V1804986ND
2018-02-06V1805280ND
2018-02-06V1805278ND
2018-02-12V1806151ND
2018-02-12V1806153ND
2018-05-15V1821860ND
2018-05-15V1821854ND
2018-05-15V1821857ND
2018-05-15V1821855ND
2018-05-15V1821851ND
2018-05-23V1823162ND
2018-05-23V1823163ND
2018-05-23V1823164ND
2018-05-23V1823165ND
2018-06-05V1825329ND
2018-06-06V1825582ND
2018-06-06V1825584ND
2018-06-06V1825583ND
2018-06-06V1825588ND
2018-06-12V1826496ND
2018-06-15V1827349ND
2018-06-21V1828646ND
2018-06-21V1828605ND
2018-06-21V1828606ND
2018-06-26V1829344ND
2018-07-02V1830571ND
2018-07-05V1831165ND
2018-07-05V1831167ND
2018-07-10V1832034ND
2018-07-10V1832041ND
2018-07-10V1832038ND
2018-08-15V1839828ND
2018-08-23V1841239ND
2018-08-23V1841237ND
2018-08-29V1842145ND
2018-11-08V1855570ND
2018-11-08V1855568ND
2018-12-12V1860803ND
2019-01-31V1904611ND
2019-01-31V1904615ND
2019-02-07V1905723ND
2019-02-07V1905727ND
2019-02-07V1905724ND
2019-02-19V1907388ND
2019-02-19V1907386ND
2019-03-06V1909868ND
2019-03-06V1909865ND
2019-03-27V1913514ND
2019-04-02V1914463ND
2019-04-22V1918243ND
2019-04-22V1918245ND
2019-04-30V1919668ND
2019-04-30V1919667ND
2019-04-30V1919666ND
2019-06-11V1927614ND
2019-06-11V1927617ND
2019-06-11V1927611ND
2019-06-12V1927978ND
2019-06-12V1927974ND
2019-06-13V1928243ND
2019-07-03V1932118ND
2019-07-09V1933024ND
2019-07-09V1933033ND
2019-07-09V1933027ND
2019-07-09V1933034ND
2019-07-09V1933032ND
2019-07-10V1933341ND
2019-07-18V1935148ND
2019-07-31V1937498ND
2019-08-05V1938144ND
2019-08-26V1942332ND
2019-08-28V1942932ND
2019-08-28V1942930ND
2019-09-05V1944523ND
2019-09-12V1945907ND
2019-10-09V1950924ND
2019-10-09V1951011ND