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EWG's Tap Water Database — 2021 UPDATE

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Dichloroacetic acid

Cincinnati Public Water System

Dichloroacetic 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)

352

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013N/A00N/A
20141.82 ppb4838ND - 4.98 ppb
20151.99 ppb4836ND - 4.73 ppb
20162.12 ppb4836ND - 5.83 ppb
20172.91 ppb4841ND - 7.54 ppb
20183.67 ppb10887ND - 10.1 ppb
20193.80 ppb120114ND - 11.8 ppb

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 0.2 ppb

The EWG Health Guideline of 0.2 ppb for dichloroacetic 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
2014-02-100912723.25 ppb
2014-02-100912733.49 ppb
2014-02-100912742.86 ppb
2014-02-100912753.12 ppb
2014-02-100912771.02 ppb
2014-02-100912782.26 ppb
2014-02-100912791.32 ppb
2014-02-100912802.68 ppb
2014-02-100912812.15 ppb
2014-02-110912712.81 ppb
2014-02-110912762.43 ppb
2014-02-110912822.37 ppb
2014-05-050913033.94 ppb
2014-05-050913081.77 ppb
2014-05-050913122.31 ppb
2014-05-050913141.87 ppb
2014-05-060913044.08 ppb
2014-05-060913054.98 ppb
2014-05-060913063.87 ppb
2014-05-060913073.19 ppb
2014-05-060913091.54 ppb
2014-05-060913102.38 ppb
2014-05-060913112.02 ppb
2014-05-060913132.37 ppb
2014-08-04091351ND
2014-08-040913562.60 ppb
2014-08-04091357ND
2014-08-040913582.70 ppb
2014-08-05091360ND
2014-08-060913521.39 ppb
2014-08-060913531.31 ppb
2014-08-060913541.30 ppb
2014-08-07091350ND
2014-08-07091355ND
2014-08-07091359ND
2014-08-07091361ND
2014-11-030913661.07 ppb
2014-11-03091371ND
2014-11-03091377ND
2014-11-040913671.39 ppb
2014-11-040913681.45 ppb
2014-11-040913691.68 ppb
2014-11-040913701.25 ppb
2014-11-040913722.50 ppb
2014-11-040913731.08 ppb
2014-11-040913742.59 ppb
2014-11-040913751.02 ppb
2014-11-04091376ND
2015-02-090914073.20 ppb
2015-02-090914084.19 ppb
2015-02-090914093.36 ppb
2015-02-090914104.21 ppb
2015-02-090914121.87 ppb
2015-02-090914132.57 ppb
2015-02-090914162.14 ppb
2015-02-100914063.59 ppb
2015-02-100914112.92 ppb
2015-02-100914141.55 ppb
2015-02-100914153.40 ppb
2015-02-100914172.57 ppb
2015-05-110914351.53 ppb
2015-05-110914364.61 ppb
2015-05-110914373.60 ppb
2015-05-110914384.73 ppb
2015-05-110914401.65 ppb
2015-05-110914411.80 ppb
2015-05-110914422.89 ppb
2015-05-110914432.13 ppb
2015-05-11091444ND
2015-05-120914344.23 ppb
2015-05-120914391.87 ppb
2015-05-120914451.59 ppb
2015-08-100914652.15 ppb
2015-08-10091470ND
2015-08-100914672.50 ppb
2015-08-100914681.99 ppb
2015-08-100914692.22 ppb
2015-08-100914733.73 ppb
2015-08-100914741.66 ppb
2015-08-10091475ND
2015-08-10091476ND
2015-08-110914662.47 ppb
2015-08-110914714.53 ppb
2015-08-11091472ND
2015-11-090914931.06 ppb
2015-11-09091498ND
2015-11-090914951.13 ppb
2015-11-090914961.28 ppb
2015-11-09091497ND
2015-11-09091502ND
2015-11-09091504ND
2015-11-10091494ND
2015-11-100914992.71 ppb
2015-11-10091500ND
2015-11-100915011.97 ppb
2015-11-10091503ND
2016-02-080915213.10 ppb
2016-02-080915222.30 ppb
2016-02-080915262.62 ppb
2016-02-080915235.37 ppb
2016-02-080915243.78 ppb
2016-02-080915254.59 ppb
2016-02-080915271.81 ppb
2016-02-080915282.50 ppb
2016-02-080915292.58 ppb
2016-02-080915303.54 ppb
2016-02-080915312.68 ppb
2016-02-080915322.76 ppb
2016-05-090915505.83 ppb
2016-05-090915515.19 ppb
2016-05-090915524.77 ppb
2016-05-090915533.75 ppb
2016-05-090915551.92 ppb
2016-05-090915562.70 ppb
2016-05-090915571.72 ppb
2016-05-090915591.86 ppb
2016-05-100915494.38 ppb
2016-05-100915542.19 ppb
2016-05-100915582.67 ppb
2016-05-100915602.59 ppb
2016-08-080915701.43 ppb
2016-08-080915711.94 ppb
2016-08-080915721.85 ppb
2016-08-080915732.68 ppb
2016-08-08091576ND
2016-08-080915782.88 ppb
2016-08-080915791.45 ppb
2016-08-080915802.98 ppb
2016-08-090915692.98 ppb
2016-08-090915741.47 ppb
2016-08-090915752.45 ppb
2016-08-090915771.18 ppb
2016-11-07091597ND
2016-11-07091598ND
2016-11-07091599ND
2016-11-07091600ND
2016-11-070916021.12 ppb
2016-11-07091603ND
2016-11-07091604ND
2016-11-07091606ND
2016-11-08091596ND
2016-11-08091601ND
2016-11-08091605ND
2016-11-08091607ND
2017-02-06AB951046.50 ppb
2017-02-06AB951057.54 ppb
2017-02-06AB951064.31 ppb
2017-02-06AB951074.88 ppb
2017-02-06AB95109ND
2017-02-06AB951103.98 ppb
2017-02-06AB95111ND
2017-02-06AB951133.46 ppb
2017-02-07AB951035.39 ppb
2017-02-07AB951083.87 ppb
2017-02-07AB951125.25 ppb
2017-02-07AB951143.81 ppb
2017-05-08AC014705.71 ppb
2017-05-08AC014714.40 ppb
2017-05-08AC014725.36 ppb
2017-05-08AC014734.27 ppb
2017-05-08AC014751.90 ppb
2017-05-08AC014762.21 ppb
2017-05-08AC014771.97 ppb
2017-05-08AC014792.15 ppb
2017-05-09AC014693.28 ppb
2017-05-09AC014742.83 ppb
2017-05-09AC014782.50 ppb
2017-05-09AC014802.65 ppb
2017-08-07AC050603.26 ppb
2017-08-07AC050623.18 ppb
2017-08-07AC050632.96 ppb
2017-08-07AC050654.42 ppb
2017-08-07AC050662.54 ppb
2017-08-07AC050673.35 ppb
2017-08-07AC050693.00 ppb
2017-08-08AC050593.60 ppb
2017-08-08AC050613.95 ppb
2017-08-08AC050642.07 ppb
2017-08-08AC050684.09 ppb
2017-08-08AC050702.96 ppb
2017-11-06AC090051.11 ppb
2017-11-06AC090061.06 ppb
2017-11-06AC090071.16 ppb
2017-11-06AC09008ND
2017-11-06AC090103.64 ppb
2017-11-06AC090111.09 ppb
2017-11-06AC090122.37 ppb
2017-11-06AC09014ND
2017-11-07AC090041.68 ppb
2017-11-07AC09009ND
2017-11-07AC09013ND
2017-11-07AC09015ND
2018-02-05AC151038.67 ppb
2018-02-05AC1510410.1 ppb
2018-02-05AC151057.89 ppb
2018-02-05AC151069.27 ppb
2018-02-05AC151082.68 ppb
2018-02-05AC151097.32 ppb
2018-02-05AC151102.47 ppb
2018-02-05AC151125.27 ppb
2018-02-06AC151027.90 ppb
2018-02-06AC151076.56 ppb
2018-02-06AC151119.24 ppb
2018-02-06AC151136.64 ppb
2018-05-07AC193296.90 ppb
2018-05-07AC193307.87 ppb
2018-05-07AC193317.36 ppb
2018-05-07AC193326.68 ppb
2018-05-07AC193335.16 ppb
2018-05-07AC193343.60 ppb
2018-05-07AC193352.15 ppb
2018-05-07AC193363.93 ppb
2018-05-07AC193372.47 ppb
2018-05-07AC193386.23 ppb
2018-05-07AC193394.10 ppb
2018-05-07AC193404.51 ppb
2018-06-04AC217804.72 ppb
2018-06-04AC217854.00 ppb
2018-06-04AC217895.44 ppb
2018-06-04AC217914.50 ppb
2018-06-05AC217825.77 ppb
2018-06-05AC217837.04 ppb
2018-06-05AC217846.72 ppb
2018-06-06AC217816.66 ppb
2018-06-06AC217864.76 ppb
2018-06-06AC217874.02 ppb
2018-06-06AC217883.61 ppb
2018-06-07AC217903.31 ppb
2018-07-09AC229107.24 ppb
2018-07-10AC229005.89 ppb
2018-07-10AC229054.90 ppb
2018-07-10AC229095.76 ppb
2018-07-10AC229114.87 ppb
2018-07-11AC229026.95 ppb
2018-07-11AC229036.31 ppb
2018-07-11AC229046.36 ppb
2018-07-12AC229016.40 ppb
2018-07-12AC229064.35 ppb
2018-07-12AC229075.12 ppb
2018-07-12AC229083.33 ppb
2018-08-06AC241021.79 ppb
2018-08-06AC241033.92 ppb
2018-08-06AC241042.83 ppb
2018-08-06AC241052.68 ppb
2018-08-06AC241061.61 ppb
2018-08-06AC241071.26 ppb
2018-08-06AC241082.58 ppb
2018-08-06AC241091.56 ppb
2018-08-06AC241101.87 ppb
2018-08-06AC24111ND
2018-08-06AC24112ND
2018-08-06AC24113ND
2018-09-10AC253741.25 ppb
2018-09-10AC253751.50 ppb
2018-09-10AC25376ND
2018-09-11AC253731.86 ppb
2018-09-11AC253782.91 ppb
2018-09-11AC25379ND
2018-09-11AC253802.80 ppb
2018-09-12AC25382ND
2018-09-13AC253721.03 ppb
2018-09-13AC25377ND
2018-09-13AC25381ND
2018-09-13AC25383ND
2018-10-08AC268413.75 ppb
2018-10-08AC268421.56 ppb
2018-10-08AC26843ND
2018-10-09AC26849ND
2018-10-10AC268402.30 ppb
2018-10-10AC268453.45 ppb
2018-10-10AC26846ND
2018-10-10AC268473.49 ppb
2018-10-11AC268392.21 ppb
2018-10-11AC268441.02 ppb
2018-10-11AC26848ND
2018-10-11AC26850ND
2018-11-05AC2801011.90 ppb
2018-11-05AC280102ND
2018-11-05AC2801036.76 ppb
2018-11-05AC280104ND
2018-11-05AC2801051.85 ppb
2018-11-05AC280106ND
2018-11-05AC2801075.39 ppb
2018-11-05AC280108ND
2018-11-05AC2801092.23 ppb
2018-11-05AC280110ND
2018-11-05AC280111ND
2018-11-05AC280112ND
2018-12-03AC291554.54 ppb
2018-12-03AC291604.95 ppb
2018-12-03AC291644.39 ppb
2018-12-03AC291664.45 ppb
2018-12-04AC291565.33 ppb
2018-12-04AC291614.56 ppb
2018-12-04AC291624.24 ppb
2018-12-04AC291633.59 ppb
2018-12-05AC291576.07 ppb
2018-12-05AC291584.93 ppb
2018-12-05AC291594.44 ppb
2018-12-06AC291654.93 ppb
2019-01-07AC306644.93 ppb
2019-01-07AC306654.54 ppb
2019-01-07AC306662.94 ppb
2019-01-08AC306634.85 ppb
2019-01-08AC306684.48 ppb
2019-01-08AC306694.26 ppb
2019-01-08AC306702.42 ppb
2019-01-09AC306723.27 ppb
2019-01-10AC306625.26 ppb
2019-01-10AC306674.16 ppb
2019-01-10AC306714.57 ppb
2019-01-10AC306733.87 ppb
2019-02-04AC318705.28 ppb
2019-02-04AC318714.43 ppb
2019-02-04AC318725.27 ppb
2019-02-04AC318735.72 ppb
2019-02-04AC318745.65 ppb
2019-02-04AC318754.82 ppb
2019-02-04AC318762.31 ppb
2019-02-04AC318774.77 ppb
2019-02-04AC318782.00 ppb
2019-02-04AC318792.75 ppb
2019-02-04AC318803.47 ppb
2019-02-04AC318811.85 ppb
2019-03-05AC329204.58 ppb
2019-03-05AC329213.54 ppb
2019-03-05AC329224.99 ppb
2019-03-05AC329234.71 ppb
2019-03-05AC329244.18 ppb
2019-03-05AC329252.42 ppb
2019-03-05AC329265.38 ppb
2019-03-05AC329272.76 ppb
2019-03-05AC329282.21 ppb
2019-03-05AC329293.80 ppb
2019-03-05AC329302.70 ppb
2019-03-05AC329313.10 ppb
2019-04-10AC345414.84 ppb
2019-04-10AC345463.70 ppb
2019-04-10AC345503.86 ppb
2019-04-10AC345523.97 ppb
2019-04-11AC345434.80 ppb
2019-04-11AC345444.08 ppb
2019-04-11AC345454.84 ppb
2019-04-12AC345426.22 ppb
2019-04-12AC345472.67 ppb
2019-04-12AC345485.16 ppb
2019-04-12AC345493.38 ppb
2019-04-12AC345513.77 ppb
2019-05-13AC360893.49 ppb
2019-05-13AC360904.55 ppb
2019-05-13AC3609111.8 ppb
2019-05-13AC360926.22 ppb
2019-05-13AC360933.96 ppb
2019-05-13AC360944.72 ppb
2019-05-13AC360954.32 ppb
2019-05-13AC360965.15 ppb
2019-05-13AC360973.55 ppb
2019-05-13AC360984.89 ppb
2019-05-13AC360995.24 ppb
2019-05-13AC361005.86 ppb
2019-06-03AC369204.70 ppb
2019-06-03AC369213.96 ppb
2019-06-03AC369253.47 ppb
2019-06-03AC369264.32 ppb
2019-06-03AC369273.44 ppb
2019-06-03AC369283.52 ppb
2019-06-03AC369295.17 ppb
2019-06-03AC36930ND
2019-06-03AC369313.50 ppb
2019-06-04AC369225.08 ppb
2019-06-04AC369235.16 ppb
2019-06-04AC369244.40 ppb
2019-07-08AC384595.03 ppb
2019-07-08AC384765.09 ppb
2019-07-08AC384807.02 ppb
2019-07-08AC384825.44 ppb
2019-07-09AC384725.51 ppb
2019-07-09AC384736.69 ppb
2019-07-09AC384746.52 ppb
2019-07-09AC384755.76 ppb
2019-07-09AC384775.22 ppb
2019-07-09AC384785.92 ppb
2019-07-09AC384793.63 ppb
2019-07-09AC384815.40 ppb
2019-08-06AC395023.82 ppb
2019-08-06AC395033.07 ppb
2019-08-06AC395044.32 ppb
2019-08-06AC395054.08 ppb
2019-08-06AC395064.21 ppb
2019-08-06AC395083.69 ppb
2019-08-06AC395093.43 ppb
2019-08-06AC395103.03 ppb
2019-08-06AC395113.47 ppb
2019-08-06AC395122.55 ppb
2019-08-06AC395133.07 ppb
2019-08-06AC400132.74 ppb
2019-09-10AC41254ND
2019-09-10AC412552.42 ppb
2019-09-10AC412564.32 ppb
2019-09-10AC412572.21 ppb
2019-09-10AC412582.18 ppb
2019-09-10AC412602.92 ppb
2019-09-10AC412612.93 ppb
2019-09-10AC412623.39 ppb
2019-09-10AC412632.44 ppb
2019-09-10AC412641.49 ppb
2019-09-10AC412651.69 ppb
2019-09-10AC412691.45 ppb
2019-10-07AC425131.60 ppb
2019-10-07AC425141.85 ppb
2019-10-07AC425151.79 ppb
2019-10-07AC425161.79 ppb
2019-10-07AC425171.73 ppb
2019-10-07AC42518ND
2019-10-07AC42519ND
2019-10-07AC425202.21 ppb
2019-10-07AC425213.62 ppb
2019-10-07AC425221.70 ppb
2019-10-07AC42523ND
2019-10-07AC42524ND