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EWG's Tap Water Database — 2019 UPDATE

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Trichloroacetic acid

Ashland City

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.

 

84

Samples

0

Samples exceeding legal limit (MCL)

25

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20120.750 ppb42ND - 1.70 ppb
20130.556 ppb167ND - 1.70 ppb
2014ND160ND
2015ND160ND
20160.881 ppb1612ND - 1.30 ppb
20170.289 ppb164ND - 1.32 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
2012-01-1712-10745-011.30 ppb
2012-04-1012-14026-011.70 ppb
2012-07-1712-18585-01ND
2012-10-0912-23067-01ND
2013-01-0413-10208-041.70 ppb
2013-01-0413-10208-031.30 ppb
2013-01-0413-10208-021.30 ppb
2013-01-0413-10208-011.30 ppb
2013-04-049900085351ND
2013-04-0499000851711.10 ppb
2013-04-0499000853521.10 ppb
2013-04-049900085170ND
2013-07-039900010370ND
2013-07-0399000103721.10 ppb
2013-07-039900010371ND
2013-07-039900010374ND
2013-10-03A130148544ND
2013-10-03A130108432ND
2013-10-03A130108433ND
2013-10-03A130148545ND
2014-01-02A140148551ND
2014-01-02A140148549ND
2014-01-02A140148550ND
2014-01-02A140148552ND
2014-04-03A140085172ND
2014-04-03A140085173ND
2014-04-03A140180048ND
2014-04-03A140085174ND
2014-07-02A140197362ND
2014-07-02A140197364ND
2014-07-02A140197361ND
2014-07-02A140197363ND
2014-10-02A140217209ND
2014-10-02A140217211ND
2014-10-02A140217212ND
2014-10-02A140217210ND
2015-01-06A150217427ND
2015-01-06A150217426ND
2015-01-06A150217425ND
2015-01-06A150217424ND
2015-04-02A150232021ND
2015-04-02A150232020ND
2015-04-02A150232023ND
2015-04-02A150232022ND
2015-07-01A150285241ND
2015-07-01A150285240ND
2015-07-01A150285238ND
2015-07-01A150285239ND
2015-10-01A150331586ND
2015-10-01A150331585ND
2015-10-01A150331584ND
2015-10-01A150331583ND
2016-01-07A160311205ND
2016-01-07A160311204ND
2016-01-07A160311203ND
2016-01-07A160311202ND
2016-04-07A1603748511.000 ppb
2016-04-07A1603748501.10 ppb
2016-04-07A1603748491.30 ppb
2016-04-07A1603748481.30 ppb
2016-07-07A1603382661.20 ppb
2016-07-07A1603382671.20 ppb
2016-07-07A1603382681.10 ppb
2016-07-07A1603382691.20 ppb
2016-10-05A1603996841.20 ppb
2016-10-05A1603996831.20 ppb
2016-10-05A1603996821.10 ppb
2016-10-05A1603996811.20 ppb
2017-01-05A170451998ND
2017-01-05A170452000ND
2017-01-05A170451999ND
2017-01-05A170451997ND
2017-04-04170403981.11 ppb
2017-04-0417040397ND
2017-04-04170403961.32 ppb
2017-04-04170403991.07 ppb
2017-07-0517070441ND
2017-07-0517070440ND
2017-07-0517070438ND
2017-07-05170704391.12 ppb
2017-10-0417100566ND
2017-10-0417100567ND
2017-10-0417100568ND
2017-10-0417100569ND