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EWG's Tap Water Database — 2021 UPDATE

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Trichloroacetic acid

City of Seagoville

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)

59

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20141.06 ppb1612ND - 1.90 ppb
20151.59 ppb16161.10 ppb - 2.70 ppb
20161.66 ppb1615ND - 2.40 ppb
20170.569 ppb167ND - 1.60 ppb
20180.381 ppb164ND - 2.00 ppb
20190.475 ppb165ND - 1.80 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
2014-03-17Q14084640041.60 ppb
2014-03-17Q14084640031.50 ppb
2014-03-17Q14084640021.70 ppb
2014-03-17Q14084640011.000 ppb
2014-05-15Q14165980011.50 ppb
2014-05-15Q14165980031.10 ppb
2014-05-15Q14165980021.10 ppb
2014-05-15Q14165980041.90 ppb
2014-09-02Q1440529002ND
2014-09-02Q1440529001ND
2014-09-02Q1440529003ND
2014-09-02Q14405290041.50 ppb
2014-10-28Q14544380021.30 ppb
2014-10-28Q14544380011.10 ppb
2014-10-28Q14544380051.60 ppb
2014-10-28Q1454438004ND
2015-01-27Q15031470051.20 ppb
2015-01-27Q15031470041.10 ppb
2015-01-27Q15031470031.10 ppb
2015-01-27Q15031470021.30 ppb
2015-05-26Q15190360011.40 ppb
2015-05-26Q15190360022.70 ppb
2015-05-26Q15190360041.20 ppb
2015-05-26Q15190360032.70 ppb
2015-08-12Q15317790042.00 ppb
2015-08-12Q15317790031.30 ppb
2015-08-12Q15317790021.30 ppb
2015-08-12Q15317790011.10 ppb
2015-10-21Q15415020042.20 ppb
2015-10-21Q15415020031.90 ppb
2015-10-21Q15415020021.80 ppb
2015-10-21Q15415020011.20 ppb
2016-01-20Q16023320022.00 ppb
2016-01-20Q16023320012.10 ppb
2016-01-20Q16023320031.90 ppb
2016-01-20Q16023320042.00 ppb
2016-04-06Q16136720041.50 ppb
2016-04-06Q16136720031.60 ppb
2016-04-06Q16136720021.60 ppb
2016-04-06Q16136720011.70 ppb
2016-07-13Q16283770041.80 ppb
2016-07-13Q16283770032.40 ppb
2016-07-13Q16283770022.10 ppb
2016-07-13Q16283770011.50 ppb
2016-10-17Q1643890001ND
2016-10-17Q16438900041.50 ppb
2016-10-17Q16438900031.40 ppb
2016-10-17Q16438900021.50 ppb
2017-01-18Q1702349005ND
2017-01-18Q1702349002ND
2017-01-18Q1702349004ND
2017-01-18Q1702349001ND
2017-04-24Q17165260041.20 ppb
2017-04-24Q17165260031.40 ppb
2017-04-24Q17165260021.60 ppb
2017-04-24Q17165260011.000 ppb
2017-07-26Q1731045001ND
2017-07-26Q1731045003ND
2017-07-26Q1731045004ND
2017-07-26Q1731045002ND
2017-10-25Q17552880021.50 ppb
2017-10-25Q17552880041.20 ppb
2017-10-25Q17552880031.20 ppb
2017-10-25Q1755288001ND
2018-01-18Q1802149004ND
2018-01-18Q1802149003ND
2018-01-18Q1802149002ND
2018-01-18Q1802149001ND
2018-04-12Q1815237003ND
2018-04-12Q1815237001ND
2018-04-12Q1815237002ND
2018-04-12Q18152370041.20 ppb
2018-07-02Q1826246005ND
2018-07-02Q18262460041.90 ppb
2018-07-02Q18262460032.00 ppb
2018-07-02Q1826246002ND
2018-10-03Q1839483004ND
2018-10-03Q18394830031.000 ppb
2018-10-03Q1839483001ND
2018-10-03Q1839483002ND
2019-01-08Q19008000011.80 ppb
2019-01-08Q19008000031.60 ppb
2019-01-08Q19008000021.70 ppb
2019-01-08Q19008000041.40 ppb
2019-04-11Q19148070041.10 ppb
2019-04-11Q1914807003ND
2019-04-11Q1914807002ND
2019-04-11Q1914807001ND
2019-08-07Q1952048005ND
2019-08-07Q1952048004ND
2019-08-07Q1952048003ND
2019-08-07Q1952048002ND
2019-10-17Q1972965001ND
2019-10-17Q1972965004ND
2019-10-17Q1972965003ND
2019-10-17Q1972965002ND