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EWG's Tap Water Database — 2021 UPDATE

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Dichloroacetic acid

Benton City WSC

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

 

96

Samples

0

Samples exceeding legal limit (MCL)

5

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND160ND
2015ND160ND
2016ND160ND
20170.0750 ppb161ND - 1.20 ppb
20180.0625 ppb161ND - 1.000 ppb
20190.225 ppb163ND - 1.40 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
2014-02-13AC42765ND
2014-02-13AC42771ND
2014-02-13AC42760ND
2014-02-13AC42764ND
2014-05-05AC52959ND
2014-05-05AC53009ND
2014-05-05AC53013ND
2014-05-05AC53027ND
2014-09-19AC67697ND
2014-09-19AC67730ND
2014-09-19AC67694ND
2014-09-19AC67696ND
2014-10-17AC70059ND
2014-10-17AC70082ND
2014-10-17AC70058ND
2014-10-17AC70060ND
2015-01-30AC78675ND
2015-01-30AC78722ND
2015-01-30AC78670ND
2015-01-30AC78733ND
2015-04-06AC87332ND
2015-04-06AC87331ND
2015-04-06AC87328ND
2015-04-06AC87324ND
2015-07-14AC99350ND
2015-07-14AC99348ND
2015-07-14AC99346ND
2015-09-02AD05287ND
2015-10-06AD09573ND
2015-10-06AD09578ND
2015-10-06AD09579ND
2015-10-06AD09596ND
2016-01-28AD20694ND
2016-01-28AD20693ND
2016-01-28AD20687ND
2016-01-28AD20688ND
2016-05-02AD34797ND
2016-05-02AD34798ND
2016-05-02AD34816ND
2016-05-02AD34824ND
2016-07-14AD44238ND
2016-07-14AD44248ND
2016-07-14AD44242ND
2016-07-14AD44243ND
2016-11-04AD56774ND
2016-11-04AD56786ND
2016-11-04AD56772ND
2016-11-04AD56783ND
2017-03-16AD75853ND
2017-03-16AD75852ND
2017-03-16AD75851ND
2017-03-16AD75850ND
2017-05-23AD85420ND
2017-05-23AD85421ND
2017-05-23AD85419ND
2017-05-23AD85418ND
2017-08-09AD92546ND
2017-08-09AD925441.20 ppb
2017-08-09AD92548ND
2017-08-09AD92547ND
2017-10-02AD98999ND
2017-10-02AD99001ND
2017-10-02AD99000ND
2017-10-02AD99020ND
2018-01-26AE10957ND
2018-01-26AE10958ND
2018-01-26AE10955ND
2018-01-26AE10956ND
2018-04-02AE20814ND
2018-04-02AE208301.000 ppb
2018-04-02AE20829ND
2018-05-31AE28254ND
2018-08-10AE36579ND
2018-08-10AE36571ND
2018-08-10AE36587ND
2018-08-10AE36558ND
2018-11-16AE46461ND
2018-11-16AE46464ND
2018-11-16AE46460ND
2018-11-16AE46458ND
2019-01-30AE52174ND
2019-01-30AE52155ND
2019-01-30AE52173ND
2019-01-30AE52172ND
2019-04-18AE62942ND
2019-04-18AE62949ND
2019-04-18AE62941ND
2019-04-18AE62943ND
2019-07-11AE74131ND
2019-07-11AE74101ND
2019-07-11AE741301.10 ppb
2019-07-11AE74106ND
2019-10-07AE857941.10 ppb
2019-10-07AE857961.40 ppb
2019-10-07AE85801ND
2019-12-18AE92754ND