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EWG's Tap Water Database — 2021 UPDATE

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Trichloroacetic acid

Butler County Water District 2 Public Water System

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

 

100

Samples

0

Samples exceeding legal limit (MCL)

21

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013N/A00N/A
20140.195 ppb243ND - 1.97 ppb
20150.401 ppb164ND - 1.80 ppb
20160.183 ppb162ND - 1.49 ppb
20170.555 ppb166ND - 2.16 ppb
20180.224 ppb163ND - 1.30 ppb
20190.450 ppb123ND - 2.40 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
2014-03-0414C0193-02ND
2014-03-0414C0193-01ND
2014-03-0414C0193-08ND
2014-03-0414C0193-071.52 ppb
2014-03-0414C0193-06ND
2014-03-0414C0193-04ND
2014-03-0414C0193-031.97 ppb
2014-03-0414C0193-05ND
2014-06-0314F0236-081.19 ppb
2014-06-0314F0236-07ND
2014-06-0314F0236-06ND
2014-06-0314F0236-05ND
2014-06-0314F0236-04ND
2014-06-0314F0236-03ND
2014-06-0314F0236-02ND
2014-06-0314F0236-01ND
2014-09-0414I0398-01ND
2014-09-0414I0398-02ND
2014-09-0414I0398-03ND
2014-09-0414I0398-04ND
2014-12-0214L0208-01ND
2014-12-0214L0208-02ND
2014-12-0214L0208-03ND
2014-12-0214L0208-04ND
2015-03-0315C0213-041.78 ppb
2015-03-0315C0213-031.73 ppb
2015-03-0315C0213-011.12 ppb
2015-03-0315C0213-021.80 ppb
2015-06-0215F0222-01ND
2015-06-0215F0222-02ND
2015-06-0215F0222-03ND
2015-06-0215F0222-04ND
2015-09-0115I0133-03ND
2015-09-0115I0133-04ND
2015-09-0115I0133-01ND
2015-09-0115I0133-02ND
2015-12-0115L0168-04ND
2015-12-0115L0168-05ND
2015-12-0115L0168-03ND
2015-12-0115L0168-02ND
2016-03-0116C0157-011.44 ppb
2016-03-0116C0157-02ND
2016-03-0116C0157-031.49 ppb
2016-03-0116C0157-04ND
2016-06-0616F0634-01ND
2016-06-0616F0634-02ND
2016-06-0616F0634-03ND
2016-06-0616F0634-04ND
2016-09-0216I0370-04ND
2016-09-0216I0370-03ND
2016-09-0216I0370-01ND
2016-09-0216I0370-02ND
2016-12-0616L0464-02ND
2016-12-0616L0464-04ND
2016-12-0616L0464-01ND
2016-12-0716L0464-03ND
2017-03-0617C0546-01ND
2017-03-0617C0546-022.16 ppb
2017-03-0617C0546-032.06 ppb
2017-03-0617C0546-041.03 ppb
2017-06-0617F0399-041.16 ppb
2017-06-0617F0399-031.04 ppb
2017-06-0617F0399-021.43 ppb
2017-06-0617F0399-01ND
2017-09-0517I0292-01ND
2017-09-0517I0292-02ND
2017-09-0517I0292-03ND
2017-09-0517I0292-04ND
2017-12-0517L0351-02ND
2017-12-0517L0351-03ND
2017-12-0517L0351-04ND
2017-12-0517L0351-05ND
2018-03-0618C0466-011.22 ppb
2018-03-0718C0466-04ND
2018-03-0718C0466-021.06 ppb
2018-03-0718C0466-031.30 ppb
2018-06-0518F0416-01ND
2018-06-0518F0416-02ND
2018-06-0518F0416-03ND
2018-06-0518F0416-04ND
2018-09-0518I0200-01ND
2018-09-0518I0200-02ND
2018-09-0518I0200-03ND
2018-09-0518I0200-04ND
2018-12-04522968004ND
2018-12-04522968003ND
2018-12-04522968002ND
2018-12-04522968001ND
2019-03-05528593001ND
2019-03-055285930022.00 ppb
2019-03-055285930032.40 ppb
2019-03-05528593004ND
2019-06-0452153490011.000 ppb
2019-06-045215349002ND
2019-06-045215349003ND
2019-06-045215349004ND
2019-09-035222366001ND
2019-09-035222366002ND
2019-09-035222366003ND
2019-09-035222366004ND