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EWG's Tap Water Database — 2021 UPDATE

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Trichloroacetic acid

City of Corinth

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)

46

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20141.46 ppb1613ND - 3.40 ppb
20151.43 ppb1614ND - 2.30 ppb
20160.794 ppb1610ND - 1.50 ppb
20170.513 ppb166ND - 2.00 ppb
20180.0813 ppb161ND - 1.30 ppb
20190.125 ppb162ND - 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
2014-03-07Q14074520043.40 ppb
2014-03-07Q14074520033.10 ppb
2014-03-07Q14074520023.10 ppb
2014-03-07Q14074520013.00 ppb
2014-06-24Q1423342004ND
2014-06-24Q1423342003ND
2014-06-24Q14233420021.000 ppb
2014-06-24Q1423342001ND
2014-09-18Q14459720021.000 ppb
2014-09-18Q14459720011.000 ppb
2014-09-18Q14459720031.10 ppb
2014-09-18Q14459720041.50 ppb
2014-11-25Q14574810051.40 ppb
2014-11-25Q14574810041.30 ppb
2014-11-25Q14574810031.30 ppb
2014-11-25Q14574810021.20 ppb
2015-03-17Q15099110042.00 ppb
2015-03-17Q15099110032.00 ppb
2015-03-17Q15099110022.00 ppb
2015-03-17Q15099110012.00 ppb
2015-06-23Q15239420012.20 ppb
2015-06-23Q15239420022.10 ppb
2015-06-23Q15239420042.30 ppb
2015-06-23Q15239420032.30 ppb
2015-09-01Q15338400041.000 ppb
2015-09-01Q15338400031.000 ppb
2015-09-01Q1533840002ND
2015-09-01Q1533840001ND
2015-11-04Q15437960041.000 ppb
2015-11-04Q15437960031.000 ppb
2015-11-04Q15437960021.000 ppb
2015-11-04Q15437960011.000 ppb
2016-02-23Q16078610021.10 ppb
2016-02-23Q16078610011.10 ppb
2016-02-23Q16078610031.20 ppb
2016-02-23Q16078610041.10 ppb
2016-05-18Q16199120051.50 ppb
2016-05-18Q16199120041.40 ppb
2016-05-18Q16199120031.40 ppb
2016-05-18Q16199120021.40 ppb
2016-08-04Q1632454004ND
2016-08-04Q1632454003ND
2016-08-04Q1632454002ND
2016-08-04Q1632454001ND
2016-10-19Q1644916003ND
2016-10-19Q16449160021.20 ppb
2016-10-19Q16449160011.30 ppb
2016-10-19Q1644916004ND
2017-01-23Q17029010021.20 ppb
2017-01-23Q17029010041.20 ppb
2017-01-23Q17029010011.10 ppb
2017-01-23Q17029010031.30 ppb
2017-04-18Q1715879005ND
2017-04-18Q1715879004ND
2017-04-18Q1715879003ND
2017-04-18Q1715879002ND
2017-07-11Q1728205004ND
2017-07-11Q1728205001ND
2017-07-11Q1728205002ND
2017-07-11Q1728205003ND
2017-10-24Q17544510021.40 ppb
2017-10-24Q17544510042.00 ppb
2017-10-24Q1754451001ND
2017-10-24Q1754451003ND
2018-01-18Q1802009005ND
2018-01-18Q1802009004ND
2018-01-18Q1802009003ND
2018-01-18Q1802009002ND
2018-04-26Q1817026003ND
2018-04-26Q1817026001ND
2018-04-26Q1817026002ND
2018-04-26Q1817026004ND
2018-07-31Q18306720041.30 ppb
2018-07-31Q1830672002ND
2018-07-31Q1830672003ND
2018-07-31Q1830672001ND
2018-10-18Q1841751001ND
2018-10-18Q1841751003ND
2018-10-18Q1841751004ND
2018-10-18Q1841751002ND
2019-03-12Q1910524002ND
2019-03-12Q1910524001ND
2019-03-12Q1910524003ND
2019-03-12Q1910524004ND
2019-06-24Q1939573004ND
2019-06-24Q1939573003ND
2019-06-24Q1939573002ND
2019-06-24Q1939573001ND
2019-09-26Q19693590041.000 ppb
2019-09-26Q19693590031.000 ppb
2019-09-26Q1969359002ND
2019-09-26Q1969359001ND
2019-12-02Q1979254002ND
2019-12-02Q1979254005ND
2019-12-02Q1979254004ND
2019-12-02Q1979254003ND