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EWG's Tap Water Database — 2021 UPDATE

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1,1,1-Trichloroethane

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1,1,1-Trichloroethane is a solvent and a degreasing agent used for manufacturing metal products and as ingredient in cleaners and aerosols. Exposure to 1,1,1-trichloroethane can harm the nervous system, liver and circulatory system.

MORE ABOUT THIS CONTAMINANT

 

280

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND520ND
2015ND500ND
2016ND480ND
2017ND500ND
2018ND400ND
2019ND400ND

ppb = parts per billion

State and national drinking water standards and health guidelines

EPA Maximum Contaminant
Level (MCL) 200 ppb

The legal limit for 1,1,1-trichloroethane, established in 1987, was based on toxicity studies conducted in laboratory animals in the 1970s and 1980s.

ppb = parts per billion

All test results

Date Lab ID Result
2014-01-27V1403081ND
2014-03-04V1407728ND
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
2014-06-25V1423527ND
2014-07-01V1424562ND
2014-07-01V1424565ND
2014-07-16V1427066ND
2014-07-16V1427062ND
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
2014-08-11V1430901ND
2014-08-11V1430900ND
2014-08-19V1432286ND
2014-08-19V1432284ND
2014-08-19V1432281ND
2014-08-19V1432280ND
2014-09-11V1436009ND
2014-09-11V1436008ND
2014-10-21V1441723ND
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
2015-06-09V1522532ND
2015-06-12V1523057ND
2015-06-15V1523188ND
2015-06-15V1523185ND
2015-06-15V1523190ND
2015-06-16V1523455ND
2015-06-19V1524237ND
2015-06-24V1525293ND
2015-07-07V1527129ND
2015-07-07V1527128ND
2015-07-07V1527126ND
2015-07-15V1528678ND
2015-07-15V1528675ND
2015-07-15V1528673ND
2015-07-17V1529098ND
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
2015-08-12V1533693ND
2015-08-12V1533691ND
2015-08-12V1533689ND
2015-09-30V1541897ND
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
2016-06-30V1628758ND
2016-06-30V1628757ND
2016-07-06V1629588ND
2016-07-06V1629581ND
2016-07-06V1629587ND
2016-07-07V1629728ND
2016-07-07V1629732ND
2016-07-07V1629731ND
2016-07-13V1630839ND
2016-07-13V1630842ND
2016-07-13V1630840ND
2016-07-15V1631434ND
2016-08-03V1634927ND
2016-08-03V1634925ND
2016-08-03V1634932ND
2016-08-03V1634929ND
2016-08-15V1636771ND
2016-08-15V1636770ND
2016-08-25V1638558ND
2016-10-03V1645225ND
2016-10-03V1645226ND
2016-10-03V1645228ND
2016-10-03V1645230ND
2016-10-03V1645222ND
2016-10-03V1645223ND
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
2017-05-31V1722762ND
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
2017-07-10V1729874ND
2017-07-10V1729875ND
2017-07-10V1729872ND
2017-07-10V1729867ND
2017-07-11V1730134ND
2017-07-11V1730135ND
2017-07-11V1730137ND
2017-07-17V1731307ND
2017-07-17V1731309ND
2017-07-17V1731301ND
2017-07-17V1731302ND
2017-07-19V1731941ND
2017-07-19V1731943ND
2017-07-20V1732221ND
2017-07-20V1732219ND
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
2019-06-20V1929654ND
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