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EWG's Tap Water Database — 2021 UPDATE

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Trichloroacetic acid

Clive Water Department

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)

75

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20142.06 ppb16161.000 ppb - 5.00 ppb
20151.31 ppb1614ND - 2.00 ppb
20160.750 ppb169ND - 2.00 ppb
20170.750 ppb168ND - 2.00 ppb
20181.38 ppb1613ND - 3.00 ppb
20191.44 ppb1615ND - 2.00 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
2014-01-0820283342.00 ppb
2014-01-0820283331.000 ppb
2014-01-0820283311.000 ppb
2014-01-0820283321.000 ppb
2014-04-0320437163.00 ppb
2014-04-0320437153.00 ppb
2014-04-0320437144.00 ppb
2014-04-0320437135.00 ppb
2014-07-0720608562.00 ppb
2014-07-0720637652.00 ppb
2014-07-0720608623.00 ppb
2014-07-0720608572.00 ppb
2014-10-0320849851.000 ppb
2014-10-0320849831.000 ppb
2014-10-0320849821.000 ppb
2014-10-0320849811.000 ppb
2015-01-05OE2083971.000 ppb
2015-01-05OE2083981.000 ppb
2015-01-05OE2083991.000 ppb
2015-01-05OE2083961.000 ppb
2015-04-02OE226563ND
2015-04-02OE226562ND
2015-04-02OE2265611.000 ppb
2015-04-02OE2265601.000 ppb
2015-07-07OE2636972.00 ppb
2015-07-07OE2636952.00 ppb
2015-07-07OE2636962.00 ppb
2015-07-07OE2636982.00 ppb
2015-10-06OE3023412.00 ppb
2015-10-06OE3023432.00 ppb
2015-10-06OE3023441.000 ppb
2015-10-06OE3023422.00 ppb
2016-01-04OE3317121.000 ppb
2016-01-04OE3317151.000 ppb
2016-01-04OE3317161.000 ppb
2016-01-04OE3317171.000 ppb
2016-04-01OE360727ND
2016-04-01OE360726ND
2016-04-01OE360729ND
2016-04-01OE3607281.000 ppb
2016-07-12OE399820ND
2016-07-12OE399821ND
2016-07-12OE399822ND
2016-07-12OE399819ND
2016-10-03OE4357272.00 ppb
2016-10-03OE4357282.00 ppb
2016-10-03OE4357292.00 ppb
2016-10-03OE4357261.000 ppb
2017-01-03OE4664252.00 ppb
2017-01-03OE4664222.00 ppb
2017-01-03OE4664242.00 ppb
2017-01-03OE4664232.00 ppb
2017-04-03OE4968711.000 ppb
2017-04-03OE4968731.000 ppb
2017-04-06OE4988281.000 ppb
2017-04-06OE4988271.000 ppb
2017-07-05OE532311ND
2017-07-05OE532312ND
2017-07-05OE532310ND
2017-07-05OE532309ND
2017-10-02OE572228ND
2017-10-02OE572230ND
2017-10-02OE572231ND
2017-10-02OE572229ND
2018-01-08OE608106ND
2018-01-08OE608105ND
2018-01-08OE6081041.000 ppb
2018-01-08OE608103ND
2018-04-02OE6400002.00 ppb
2018-04-02OE6399972.00 ppb
2018-04-02OE6399983.00 ppb
2018-04-02OE6399992.00 ppb
2018-07-09OE6798501.000 ppb
2018-07-09OE6798491.000 ppb
2018-07-09OE6798481.000 ppb
2018-07-09OE6798471.000 ppb
2018-10-15OE7271202.00 ppb
2018-10-15OE7271212.00 ppb
2018-10-15OE7271222.00 ppb
2018-10-15OE7271232.00 ppb
2019-01-02OE7552532.00 ppb
2019-01-02OE7552542.00 ppb
2019-01-02OE7552552.00 ppb
2019-01-02OE7552562.00 ppb
2019-04-08OE7909462.00 ppb
2019-04-08OE7909491.000 ppb
2019-04-08OE7909482.00 ppb
2019-04-08OE7909472.00 ppb
2019-07-02OE828824ND
2019-07-02OE8288261.000 ppb
2019-07-02OE8288251.000 ppb
2019-07-02OE8288232.00 ppb
2019-10-07OE8754881.000 ppb
2019-10-07OE8754871.000 ppb
2019-10-07OE8754861.000 ppb
2019-10-07OE8754851.000 ppb