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EWG's Tap Water Database — 2019 UPDATE

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Trichloroacetic acid

City of McPherson

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.

 

50

Samples

0

Samples exceeding legal limit (MCL)

1

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012N/A00N/A
2013ND40ND
2014ND160ND
2015ND160ND
20160.350 ppb121ND - 4.20 ppb
2017ND20ND

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
2013-11-12605821DFND
2013-11-12605820DFND
2013-11-12605822DFND
2013-11-12605823DFND
2014-02-1060166ND
2014-02-1060163ND
2014-02-1060164ND
2014-02-1060165ND
2014-05-05109789ND
2014-05-05109790ND
2014-05-05109791ND
2014-05-05109792ND
2014-08-11171191ND
2014-08-11171190ND
2014-08-11171189ND
2014-08-11171188ND
2014-11-17232924ND
2014-11-17232925ND
2014-11-17232926ND
2014-11-17232927ND
2015-02-09277249ND
2015-02-09277250ND
2015-02-09277252ND
2015-02-09277251ND
2015-05-04328653ND
2015-05-04328654ND
2015-05-04328655ND
2015-05-04328656ND
2015-08-10385792ND
2015-08-10385791ND
2015-08-10385790ND
2015-08-10385789ND
2015-11-16427906ND
2015-11-16427909ND
2015-11-16427908ND
2015-11-16427907ND
2016-02-22497251ND
2016-02-22497250ND
2016-02-22497253ND
2016-02-22497252ND
2016-05-16547717ND
2016-05-16547714ND
2016-05-16547716ND
2016-05-16547715ND
2016-08-15604068ND
2016-08-15604070ND
2016-08-15604069ND
2016-08-156040714.20 ppb
2017-08-21823964ND
2017-08-21823963ND