Menu

EWG's Tap Water Database — 2021 UPDATE

Donate

Trichloroacetic acid

Cincinnati 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

 

420

Samples

0

Samples exceeding legal limit (MCL)

170

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013N/A00N/A
20140.415 ppb4814ND - 1.94 ppb
20150.377 ppb4810ND - 2.30 ppb
20160.544 ppb4816ND - 2.84 ppb
20170.666 ppb4816ND - 3.97 ppb
20180.808 ppb10846ND - 4.79 ppb
20190.955 ppb12068ND - 3.51 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
2014-02-100912721.94 ppb
2014-02-100912731.88 ppb
2014-02-100912741.51 ppb
2014-02-100912751.72 ppb
2014-02-10091277ND
2014-02-100912781.12 ppb
2014-02-10091279ND
2014-02-100912801.44 ppb
2014-02-100912811.05 ppb
2014-02-110912711.65 ppb
2014-02-110912761.43 ppb
2014-02-110912821.33 ppb
2014-05-050913031.10 ppb
2014-05-05091308ND
2014-05-05091312ND
2014-05-05091314ND
2014-05-060913041.18 ppb
2014-05-060913051.41 ppb
2014-05-060913061.14 ppb
2014-05-06091307ND
2014-05-06091309ND
2014-05-06091310ND
2014-05-06091311ND
2014-05-06091313ND
2014-08-04091351ND
2014-08-04091356ND
2014-08-04091357ND
2014-08-04091358ND
2014-08-05091360ND
2014-08-06091352ND
2014-08-06091353ND
2014-08-06091354ND
2014-08-07091350ND
2014-08-07091355ND
2014-08-07091359ND
2014-08-07091361ND
2014-11-03091366ND
2014-11-03091371ND
2014-11-03091377ND
2014-11-04091367ND
2014-11-04091368ND
2014-11-04091369ND
2014-11-04091370ND
2014-11-04091372ND
2014-11-04091373ND
2014-11-04091374ND
2014-11-04091375ND
2014-11-04091376ND
2015-02-090914072.03 ppb
2015-02-090914082.30 ppb
2015-02-090914092.06 ppb
2015-02-09091410ND
2015-02-09091412ND
2015-02-090914131.63 ppb
2015-02-090914161.24 ppb
2015-02-100914062.24 ppb
2015-02-100914111.83 ppb
2015-02-10091414ND
2015-02-100914152.00 ppb
2015-02-100914171.59 ppb
2015-05-11091435ND
2015-05-11091436ND
2015-05-11091437ND
2015-05-110914381.18 ppb
2015-05-11091440ND
2015-05-11091441ND
2015-05-11091442ND
2015-05-11091443ND
2015-05-11091444ND
2015-05-12091434ND
2015-05-12091439ND
2015-05-12091445ND
2015-08-10091465ND
2015-08-10091470ND
2015-08-10091467ND
2015-08-10091468ND
2015-08-10091469ND
2015-08-10091473ND
2015-08-10091474ND
2015-08-10091475ND
2015-08-10091476ND
2015-08-11091466ND
2015-08-11091471ND
2015-08-11091472ND
2015-11-09091493ND
2015-11-09091498ND
2015-11-09091495ND
2015-11-09091496ND
2015-11-09091497ND
2015-11-09091502ND
2015-11-09091504ND
2015-11-10091494ND
2015-11-10091499ND
2015-11-10091500ND
2015-11-10091501ND
2015-11-10091503ND
2016-02-080915211.50 ppb
2016-02-080915222.09 ppb
2016-02-080915261.44 ppb
2016-02-080915232.84 ppb
2016-02-080915241.95 ppb
2016-02-080915252.56 ppb
2016-02-08091527ND
2016-02-080915281.47 ppb
2016-02-08091529ND
2016-02-080915301.62 ppb
2016-02-080915311.30 ppb
2016-02-080915321.48 ppb
2016-05-090915501.61 ppb
2016-05-090915511.32 ppb
2016-05-090915521.24 ppb
2016-05-090915531.54 ppb
2016-05-09091555ND
2016-05-09091556ND
2016-05-090915571.000 ppb
2016-05-09091559ND
2016-05-100915491.17 ppb
2016-05-10091554ND
2016-05-10091558ND
2016-05-10091560ND
2016-08-08091570ND
2016-08-08091571ND
2016-08-08091572ND
2016-08-08091573ND
2016-08-08091576ND
2016-08-08091578ND
2016-08-08091579ND
2016-08-08091580ND
2016-08-09091569ND
2016-08-09091574ND
2016-08-09091575ND
2016-08-09091577ND
2016-11-07091597ND
2016-11-07091598ND
2016-11-07091599ND
2016-11-07091600ND
2016-11-07091602ND
2016-11-07091603ND
2016-11-07091604ND
2016-11-07091606ND
2016-11-08091596ND
2016-11-08091601ND
2016-11-08091605ND
2016-11-08091607ND
2017-02-06AB951043.23 ppb
2017-02-06AB951053.97 ppb
2017-02-06AB951061.52 ppb
2017-02-06AB951072.46 ppb
2017-02-06AB95109ND
2017-02-06AB951101.11 ppb
2017-02-06AB95111ND
2017-02-06AB95113ND
2017-02-07AB951032.85 ppb
2017-02-07AB951081.18 ppb
2017-02-07AB951122.28 ppb
2017-02-07AB951141.02 ppb
2017-05-08AC014702.38 ppb
2017-05-08AC014712.26 ppb
2017-05-08AC014721.91 ppb
2017-05-08AC014731.79 ppb
2017-05-08AC014751.09 ppb
2017-05-08AC01476ND
2017-05-08AC01477ND
2017-05-08AC01479ND
2017-05-09AC014691.57 ppb
2017-05-09AC01474ND
2017-05-09AC014781.37 ppb
2017-05-09AC01480ND
2017-08-07AC05060ND
2017-08-07AC05062ND
2017-08-07AC05063ND
2017-08-07AC05065ND
2017-08-07AC05066ND
2017-08-07AC05067ND
2017-08-07AC05069ND
2017-08-08AC05059ND
2017-08-08AC05061ND
2017-08-08AC05064ND
2017-08-08AC05068ND
2017-08-08AC05070ND
2017-11-06AC09005ND
2017-11-06AC09006ND
2017-11-06AC09007ND
2017-11-06AC09008ND
2017-11-06AC09010ND
2017-11-06AC09011ND
2017-11-06AC09012ND
2017-11-06AC09014ND
2017-11-07AC09004ND
2017-11-07AC09009ND
2017-11-07AC09013ND
2017-11-07AC09015ND
2018-02-05AC151033.81 ppb
2018-02-05AC151044.79 ppb
2018-02-05AC151053.69 ppb
2018-02-05AC151064.68 ppb
2018-02-05AC151081.19 ppb
2018-02-05AC151093.28 ppb
2018-02-05AC151101.17 ppb
2018-02-05AC151122.31 ppb
2018-02-06AC151023.69 ppb
2018-02-06AC151072.98 ppb
2018-02-06AC151114.72 ppb
2018-02-06AC151133.24 ppb
2018-05-07AC193291.41 ppb
2018-05-07AC193302.01 ppb
2018-05-07AC193311.83 ppb
2018-05-07AC193321.72 ppb
2018-05-07AC193331.17 ppb
2018-05-07AC19334ND
2018-05-07AC19335ND
2018-05-07AC19336ND
2018-05-07AC19337ND
2018-05-07AC193381.33 ppb
2018-05-07AC19339ND
2018-05-07AC19340ND
2018-06-04AC217801.22 ppb
2018-06-04AC21785ND
2018-06-04AC217891.12 ppb
2018-06-04AC21791ND
2018-06-05AC217821.31 ppb
2018-06-05AC217831.34 ppb
2018-06-05AC217841.23 ppb
2018-06-06AC217811.62 ppb
2018-06-06AC21786ND
2018-06-06AC21787ND
2018-06-06AC21788ND
2018-06-07AC21790ND
2018-07-09AC229101.30 ppb
2018-07-10AC229001.26 ppb
2018-07-10AC229051.07 ppb
2018-07-10AC229091.19 ppb
2018-07-10AC229111.12 ppb
2018-07-11AC229021.43 ppb
2018-07-11AC229031.33 ppb
2018-07-11AC229041.35 ppb
2018-07-12AC229011.37 ppb
2018-07-12AC22906ND
2018-07-12AC229071.10 ppb
2018-07-12AC22908ND
2018-08-06AC24102ND
2018-08-06AC24103ND
2018-08-06AC24104ND
2018-08-06AC24105ND
2018-08-06AC24106ND
2018-08-06AC24107ND
2018-08-06AC24108ND
2018-08-06AC24109ND
2018-08-06AC24110ND
2018-08-06AC24111ND
2018-08-06AC24112ND
2018-08-06AC24113ND
2018-09-10AC25374ND
2018-09-10AC25375ND
2018-09-10AC25376ND
2018-09-11AC25373ND
2018-09-11AC25378ND
2018-09-11AC25379ND
2018-09-11AC25380ND
2018-09-12AC25382ND
2018-09-13AC25372ND
2018-09-13AC25377ND
2018-09-13AC25381ND
2018-09-13AC25383ND
2018-10-08AC26841ND
2018-10-08AC26842ND
2018-10-08AC26843ND
2018-10-09AC26849ND
2018-10-10AC26840ND
2018-10-10AC26845ND
2018-10-10AC26846ND
2018-10-10AC26847ND
2018-10-11AC26839ND
2018-10-11AC26844ND
2018-10-11AC26848ND
2018-10-11AC26850ND
2018-11-05AC280101ND
2018-11-05AC280102ND
2018-11-05AC2801031.34 ppb
2018-11-05AC280104ND
2018-11-05AC280105ND
2018-11-05AC280106ND
2018-11-05AC2801071.03 ppb
2018-11-05AC280108ND
2018-11-05AC280109ND
2018-11-05AC280110ND
2018-11-05AC280111ND
2018-11-05AC280112ND
2018-12-03AC291551.65 ppb
2018-12-03AC291601.33 ppb
2018-12-03AC291641.49 ppb
2018-12-03AC291661.25 ppb
2018-12-04AC291561.78 ppb
2018-12-04AC291611.57 ppb
2018-12-04AC291621.29 ppb
2018-12-04AC29163ND
2018-12-05AC291571.76 ppb
2018-12-05AC291581.64 ppb
2018-12-05AC291591.79 ppb
2018-12-06AC29165ND
2019-01-07AC306641.62 ppb
2019-01-07AC306651.43 ppb
2019-01-07AC306661.17 ppb
2019-01-08AC306631.59 ppb
2019-01-08AC30668ND
2019-01-08AC306691.28 ppb
2019-01-08AC30670ND
2019-01-09AC30672ND
2019-01-10AC306621.86 ppb
2019-01-10AC306671.12 ppb
2019-01-10AC306711.18 ppb
2019-01-10AC30673ND
2019-02-04AC318701.90 ppb
2019-02-04AC318711.28 ppb
2019-02-04AC318721.91 ppb
2019-02-04AC318731.73 ppb
2019-02-04AC318741.92 ppb
2019-02-04AC318751.33 ppb
2019-02-04AC31876ND
2019-02-04AC318771.30 ppb
2019-02-04AC31878ND
2019-02-04AC318791.26 ppb
2019-02-04AC31880ND
2019-02-04AC318811.20 ppb
2019-03-05AC329202.62 ppb
2019-03-05AC329212.07 ppb
2019-03-05AC329223.14 ppb
2019-03-05AC329232.59 ppb
2019-03-05AC329243.01 ppb
2019-03-05AC329251.76 ppb
2019-03-05AC329262.15 ppb
2019-03-05AC329271.99 ppb
2019-03-05AC32928ND
2019-03-05AC329292.57 ppb
2019-03-05AC329301.40 ppb
2019-03-05AC329311.93 ppb
2019-04-10AC345411.76 ppb
2019-04-10AC345461.03 ppb
2019-04-10AC345501.23 ppb
2019-04-10AC345521.01 ppb
2019-04-11AC345431.66 ppb
2019-04-11AC345441.38 ppb
2019-04-11AC345451.70 ppb
2019-04-12AC345423.51 ppb
2019-04-12AC345471.98 ppb
2019-04-12AC345481.86 ppb
2019-04-12AC34549ND
2019-04-12AC34551ND
2019-05-13AC360891.32 ppb
2019-05-13AC360902.02 ppb
2019-05-13AC360911.98 ppb
2019-05-13AC360921.64 ppb
2019-05-13AC360931.79 ppb
2019-05-13AC360941.31 ppb
2019-05-13AC360952.57 ppb
2019-05-13AC360961.16 ppb
2019-05-13AC36097ND
2019-05-13AC360981.83 ppb
2019-05-13AC360991.07 ppb
2019-05-13AC361002.65 ppb
2019-06-03AC369201.31 ppb
2019-06-03AC369211.06 ppb
2019-06-03AC36925ND
2019-06-03AC369261.82 ppb
2019-06-03AC36927ND
2019-06-03AC36928ND
2019-06-03AC369291.41 ppb
2019-06-03AC36930ND
2019-06-03AC36931ND
2019-06-04AC369221.47 ppb
2019-06-04AC369231.42 ppb
2019-06-04AC369241.37 ppb
2019-07-08AC384591.36 ppb
2019-07-08AC384761.56 ppb
2019-07-08AC384802.06 ppb
2019-07-08AC384821.34 ppb
2019-07-09AC384721.41 ppb
2019-07-09AC384731.40 ppb
2019-07-09AC384741.39 ppb
2019-07-09AC384751.22 ppb
2019-07-09AC384771.51 ppb
2019-07-09AC384781.83 ppb
2019-07-09AC38479ND
2019-07-09AC384811.25 ppb
2019-08-06AC39502ND
2019-08-06AC39503ND
2019-08-06AC39504ND
2019-08-06AC39505ND
2019-08-06AC39506ND
2019-08-06AC39508ND
2019-08-06AC39509ND
2019-08-06AC39510ND
2019-08-06AC39511ND
2019-08-06AC39512ND
2019-08-06AC39513ND
2019-08-06AC40013ND
2019-09-10AC41254ND
2019-09-10AC41255ND
2019-09-10AC41256ND
2019-09-10AC41257ND
2019-09-10AC41258ND
2019-09-10AC41260ND
2019-09-10AC41261ND
2019-09-10AC41262ND
2019-09-10AC41263ND
2019-09-10AC41264ND
2019-09-10AC41265ND
2019-09-10AC41269ND
2019-10-07AC42513ND
2019-10-07AC42514ND
2019-10-07AC42515ND
2019-10-07AC42516ND
2019-10-07AC42517ND
2019-10-07AC42518ND
2019-10-07AC42519ND
2019-10-07AC42520ND
2019-10-07AC425211.66 ppb
2019-10-07AC42522ND
2019-10-07AC42523ND
2019-10-07AC42524ND