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EWG's Tap Water Database — 2019 UPDATE

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Trichloroacetic acid

Canton 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.

 

104

Samples

0

Samples exceeding legal limit (MCL)

90

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20121.75 ppb2420ND - 3.60 ppb
20131.67 ppb2420ND - 3.20 ppb
20142.07 ppb1817ND - 5.20 ppb
20151.56 ppb1614ND - 3.00 ppb
20161.89 ppb1413ND - 2.80 ppb
20171.69 ppb86ND - 2.80 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
2012-01-19AG135762.60 ppb
2012-01-19AG135772.30 ppb
2012-01-19AG13578ND
2012-01-19AG135792.10 ppb
2012-01-19AG135801.60 ppb
2012-01-19AG13581ND
2012-04-19AG194232.60 ppb
2012-04-19AG194241.80 ppb
2012-04-19AG19425ND
2012-04-19AG194262.70 ppb
2012-04-19AG194271.10 ppb
2012-04-19AG194281.000 ppb
2012-07-26AG262873.60 ppb
2012-07-26AG262883.60 ppb
2012-07-26AG262892.00 ppb
2012-07-26AG262903.60 ppb
2012-07-26AG262911.000 ppb
2012-07-26AG262921.80 ppb
2012-11-27AG349012.40 ppb
2012-11-27AG349021.80 ppb
2012-11-27AG34903ND
2012-11-27AG349042.20 ppb
2012-11-27AG349051.30 ppb
2012-11-27AG349061.000 ppb
2013-01-16AG382472.20 ppb
2013-01-16AG382492.40 ppb
2013-01-16AG382501.60 ppb
2013-01-17AG382463.00 ppb
2013-01-17AG38248ND
2013-01-17AG382511.000 ppb
2013-04-19AG440592.20 ppb
2013-04-19AG440601.40 ppb
2013-04-19AG44061ND
2013-04-19AG440622.70 ppb
2013-04-19AG44063ND
2013-04-19AG44064ND
2013-07-18AG506902.40 ppb
2013-07-18AG506912.50 ppb
2013-07-18AG506921.10 ppb
2013-07-18AG506932.90 ppb
2013-07-18AG506941.10 ppb
2013-07-18AG506951.40 ppb
2013-10-15AG573272.60 ppb
2013-10-15AG573282.50 ppb
2013-10-15AG573291.40 ppb
2013-10-15AG573303.20 ppb
2013-10-15AG573311.10 ppb
2013-10-15AG573321.40 ppb
2014-01-06AG625062.00 ppb
2014-01-06AG625071.70 ppb
2014-01-06AG625081.50 ppb
2014-01-06AG625092.10 ppb
2014-01-06AG625101.90 ppb
2014-01-06AG625111.10 ppb
2014-04-03AG678331.90 ppb
2014-04-03AG678341.000 ppb
2014-04-03AG678351.80 ppb
2014-04-03AG67836ND
2014-07-02AG747745.20 ppb
2014-07-02AG747752.10 ppb
2014-07-02AG747762.80 ppb
2014-07-07AG749642.70 ppb
2014-10-03AG824882.90 ppb
2014-10-03AG824891.90 ppb
2014-10-03AG824901.60 ppb
2014-10-03AG824913.00 ppb
2015-01-02AG884342.20 ppb
2015-01-02AG884351.30 ppb
2015-01-02AG884361.000 ppb
2015-01-02AG884372.50 ppb
2015-04-06AG942281.80 ppb
2015-04-06AG942291.10 ppb
2015-04-06AG942301.000 ppb
2015-04-06AG942311.50 ppb
2015-07-06AH006743.00 ppb
2015-07-06AH006751.10 ppb
2015-07-06AH00676ND
2015-07-06AH00677ND
2015-10-05AH076362.80 ppb
2015-10-05AH076392.90 ppb
2015-10-07AH076371.70 ppb
2015-10-07AH076381.10 ppb
2016-01-06AH133772.70 ppb
2016-01-06AH133742.30 ppb
2016-01-06AH133751.50 ppb
2016-01-06AH133761.20 ppb
2016-04-06AH190722.20 ppb
2016-04-06AH190731.20 ppb
2016-04-06AH19074ND
2016-04-06AH190752.60 ppb
2016-07-05AH255742.80 ppb
2016-07-05AH255751.50 ppb
2016-07-05AH255761.30 ppb
2016-07-05AH255772.80 ppb
2016-10-04AH327492.80 ppb
2016-10-04AH327501.60 ppb
2017-01-04AH400302.80 ppb
2017-01-04AH400311.70 ppb
2017-04-03AH463792.20 ppb
2017-04-03AH46380ND
2017-07-03AH540202.60 ppb
2017-07-03AH54021ND
2017-10-03AH617082.20 ppb
2017-10-03AH617092.00 ppb