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EWG's Tap Water Database — 2021 UPDATE

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Trichloroacetic acid

City of Pflugerville

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)

32

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20140.619 ppb166ND - 2.30 ppb
20150.206 ppb163ND - 1.30 ppb
20160.0813 ppb161ND - 1.30 ppb
20170.319 ppb162ND - 3.50 ppb
20180.856 ppb165ND - 4.40 ppb
20192.70 ppb1615ND - 5.20 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
2014-03-12AC46751ND
2014-03-12AC46736ND
2014-03-12AC46735ND
2014-03-12AC46748ND
2014-06-24AC57902ND
2014-06-24AC57898ND
2014-06-24AC578991.30 ppb
2014-06-24AC579051.40 ppb
2014-08-27AC65310ND
2014-08-27AC65314ND
2014-08-27AC65301ND
2014-08-27AC65312ND
2014-11-24AC727741.70 ppb
2014-11-24AC727461.40 ppb
2014-11-24AC727401.80 ppb
2014-11-24AC727762.30 ppb
2015-02-11AC80188ND
2015-02-11AC80191ND
2015-02-11AC80187ND
2015-02-11AC801891.000 ppb
2015-05-27AC93519ND
2015-05-27AC93523ND
2015-05-27AC93522ND
2015-05-27AC93518ND
2015-08-17AD04257ND
2015-08-17AD04264ND
2015-08-17AD04260ND
2015-08-17AD042631.30 ppb
2015-11-04AD12567ND
2015-11-04AD12616ND
2015-11-04AD12619ND
2015-11-04AD126231.000 ppb
2016-02-08AD22417ND
2016-02-08AD224211.30 ppb
2016-02-08AD22403ND
2016-02-08AD22422ND
2016-04-28AD34632ND
2016-04-28AD34629ND
2016-04-28AD34631ND
2016-04-28AD34630ND
2016-07-25AD45415ND
2016-07-25AD45407ND
2016-07-25AD45413ND
2016-07-25AD45422ND
2016-11-01AD55818ND
2016-11-01AD55816ND
2016-11-01AD55820ND
2016-11-01AD55821ND
2017-01-24AD66417ND
2017-01-24AD66416ND
2017-01-24AD66421ND
2017-01-24AD664071.60 ppb
2017-05-22AD85023ND
2017-05-22AD85011ND
2017-05-22AD85019ND
2017-05-22AD85012ND
2017-08-17AD93385ND
2017-08-17AD93392ND
2017-08-17AD93387ND
2017-08-17AD93391ND
2017-10-25AE02073ND
2017-10-25AE02071ND
2017-10-25AE02067ND
2017-10-25AE020703.50 ppb
2018-03-08AE17501ND
2018-03-08AE17510ND
2018-03-08AE174902.50 ppb
2018-03-08AE17491ND
2018-05-07AE25327ND
2018-05-07AE25326ND
2018-05-07AE25316ND
2018-05-07AE25317ND
2018-08-14AE36887ND
2018-08-14AE36873ND
2018-08-14AE36872ND
2018-08-14AE36865ND
2018-11-13AE458974.40 ppb
2018-11-13AE459043.30 ppb
2018-11-13AE459021.70 ppb
2018-11-13AE458941.80 ppb
2019-02-14AE545771.40 ppb
2019-02-14AE545711.20 ppb
2019-02-14AE545721.40 ppb
2019-02-14AE545731.40 ppb
2019-05-06AE648341.60 ppb
2019-05-06AE648373.70 ppb
2019-05-06AE648334.20 ppb
2019-05-06AE648384.10 ppb
2019-08-19AE792251.10 ppb
2019-08-19AE79229ND
2019-08-19AE792312.10 ppb
2019-08-19AE792082.20 ppb
2019-11-21AE901234.70 ppb
2019-11-21AE901174.10 ppb
2019-11-21AE901224.80 ppb
2019-11-21AE901205.20 ppb