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EWG's Tap Water Database — 2021 UPDATE

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Trichloroacetic acid

City of Hurst

Trichloroacetic acid, one of the group of five haloacetic acids regulated by federal standards, is formed when chlorine or other disinfectants are used to treat drinking water. Haloacetic acids and other disinfection byproducts increase the risk of cancer and may cause problems during pregnancy. Click here to read more about disinfection byproducts.

MORE ABOUT THIS CONTAMINANT

 

96

Samples

0

Samples exceeding legal limit (MCL)

31

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013N/A00N/A
20146.97 ppb1611ND - 97.3 ppb
20150.856 ppb169ND - 2.00 ppb
20160.506 ppb167ND - 1.30 ppb
20170.306 ppb163ND - 1.70 ppb
2018ND160ND
20190.0625 ppb161ND - 1.000 ppb

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 0.1 ppb

The EWG Health Guideline of 0.1 ppb for trichloroacetic acid was proposed in 2020 by the California Office of Environmental Health Hazard Assessment as a public health goal, the level of a drinking water contaminant that does not pose a significant health risk.a one-in-a-million lifetime risk of cancer. Values greater than one-in-a-million cancer risk level can result in increased cancer cases above one in a million people.

ppb = parts per billion

All test results

Date Lab ID Result
2014-02-25Q14063670041.20 ppb
2014-02-25Q14063670031.20 ppb
2014-02-25Q14063670021.10 ppb
2014-02-25Q14063670011.10 ppb
2014-04-10Q1411526018ND
2014-04-10Q1411526017ND
2014-04-10Q1411526016ND
2014-04-10Q1411526015ND
2014-07-08Q1426170002ND
2014-07-08Q142617000197.3 ppb
2014-07-08Q14261700031.90 ppb
2014-07-08Q14261700043.00 ppb
2014-10-14Q14527230011.20 ppb
2014-10-14Q14527230041.10 ppb
2014-10-14Q14527230031.10 ppb
2014-10-14Q14527230021.30 ppb
2015-01-29Q1503648004ND
2015-01-29Q1503648003ND
2015-01-29Q1503648002ND
2015-01-29Q15036480012.00 ppb
2015-04-09Q1513322014ND
2015-04-09Q1513322015ND
2015-04-09Q15133220171.80 ppb
2015-04-09Q1513322016ND
2015-07-13Q15266400041.000 ppb
2015-07-13Q15266400031.10 ppb
2015-07-13Q1526640002ND
2015-07-13Q15266400011.000 ppb
2015-10-05Q15388040041.60 ppb
2015-10-05Q15388040031.70 ppb
2015-10-05Q15388040021.70 ppb
2015-10-05Q15388040011.80 ppb
2016-01-12Q16010250041.000 ppb
2016-01-12Q1601025003ND
2016-01-12Q16010250011.000 ppb
2016-01-12Q1601025002ND
2016-04-05Q1613372004ND
2016-04-05Q1613372003ND
2016-04-05Q1613372002ND
2016-04-05Q1613372001ND
2016-07-11Q16277460201.000 ppb
2016-07-11Q1627746019ND
2016-07-11Q1627746018ND
2016-07-11Q1627746017ND
2016-10-06Q16424460011.20 ppb
2016-10-06Q16424460041.30 ppb
2016-10-06Q16424460031.30 ppb
2016-10-06Q16424460021.30 ppb
2017-01-04Q1700326025ND
2017-01-04Q1700326010ND
2017-01-04Q1700326024ND
2017-01-04Q1700326009ND
2017-04-05Q1714105004ND
2017-04-05Q1714105003ND
2017-04-05Q1714105002ND
2017-04-05Q1714105001ND
2017-07-12Q1728561002ND
2017-07-12Q17285610011.70 ppb
2017-07-12Q17285610031.50 ppb
2017-07-12Q17285610041.70 ppb
2017-10-09Q1749386004ND
2017-10-09Q1749386003ND
2017-10-09Q1749386002ND
2017-10-09Q1749386001ND
2018-01-30Q1803803002ND
2018-01-30Q1803803004ND
2018-01-30Q1803803001ND
2018-01-30Q1803803003ND
2018-05-15Q1819714002ND
2018-05-15Q1819714003ND
2018-05-15Q1819714004ND
2018-05-15Q1819714001ND
2018-07-10Q1826956012ND
2018-07-10Q1826956011ND
2018-07-10Q1826956010ND
2018-07-10Q1826956009ND
2018-10-02Q1839327008ND
2018-10-02Q1839327006ND
2018-10-02Q1839327001ND
2018-10-02Q1839327007ND
2019-01-16Q1902266013ND
2019-01-16Q1902266012ND
2019-01-16Q1902266014ND
2019-01-16Q19022660151.000 ppb
2019-04-17Q1915359009ND
2019-04-17Q1915359008ND
2019-04-17Q1915359003ND
2019-04-17Q1915359007ND
2019-07-16Q1945250004ND
2019-07-16Q1945250003ND
2019-07-16Q1945250002ND
2019-07-16Q1945250001ND
2019-10-15Q1972837001ND
2019-10-15Q1972837004ND
2019-10-15Q1972837003ND
2019-10-15Q1972837002ND