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EWG's Tap Water Database — 2021 UPDATE

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Dichloroacetic acid

Wellborn SUD

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

 

95

Samples

0

Samples exceeding legal limit (MCL)

61

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20140.360 ppb155ND - 1.20 ppb
20153.68 ppb1613ND - 11.7 ppb
20161.49 ppb1612ND - 3.50 ppb
20171.25 ppb1611ND - 2.60 ppb
20182.73 ppb1610ND - 13.7 ppb
20198.38 ppb1610ND - 23.0 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
2014-02-13AC42883ND
2014-02-13AC428801.10 ppb
2014-02-13AC42879ND
2014-02-13AC42882ND
2014-04-07AC49602ND
2014-04-07AC49605ND
2014-04-07AC496031.10 ppb
2014-04-07AC49622ND
2014-09-10AC665171.20 ppb
2014-09-10AC66518ND
2014-09-10AC66526ND
2014-12-16AC75075ND
2014-12-16AC750901.000 ppb
2014-12-16AC75089ND
2014-12-16AC750911.000 ppb
2015-03-24AC858381.90 ppb
2015-03-24AC858453.10 ppb
2015-03-24AC858443.50 ppb
2015-03-24AC858503.10 ppb
2015-05-27AC934891.90 ppb
2015-05-27AC934885.40 ppb
2015-05-27AC934722.50 ppb
2015-06-18AC965722.40 ppb
2015-09-30AD0909311.7 ppb
2015-09-30AD0909011.5 ppb
2015-09-30AD090913.40 ppb
2015-09-30AD09089ND
2015-12-07AD15696ND
2015-12-07AD15697ND
2015-12-07AD157043.90 ppb
2015-12-07AD157054.50 ppb
2016-03-09AD278611.70 ppb
2016-03-09AD278593.50 ppb
2016-03-09AD27863ND
2016-03-09AD278601.30 ppb
2016-06-14AD404022.10 ppb
2016-06-14AD404131.70 ppb
2016-06-14AD40396ND
2016-06-14AD403983.00 ppb
2016-09-30AD521631.80 ppb
2016-09-30AD521591.60 ppb
2016-09-30AD521621.000 ppb
2016-09-30AD52161ND
2016-12-08AD613872.30 ppb
2016-12-08AD613881.90 ppb
2016-12-08AD61383ND
2016-12-08AD613891.90 ppb
2017-03-07AD737002.20 ppb
2017-03-07AD737021.000 ppb
2017-03-07AD736992.40 ppb
2017-03-07AD737012.30 ppb
2017-05-22AD850142.00 ppb
2017-05-22AD85022ND
2017-05-22AD85016ND
2017-05-22AD85015ND
2017-09-19AD96767ND
2017-09-19AD96766ND
2017-09-19AD967681.90 ppb
2017-09-19AD967631.80 ppb
2017-11-21AE055472.60 ppb
2017-11-21AE055491.000 ppb
2017-11-21AE055501.10 ppb
2017-11-21AE055481.70 ppb
2018-03-15AE185892.60 ppb
2018-03-15AE18587ND
2018-03-15AE185902.10 ppb
2018-03-15AE185862.70 ppb
2018-05-08AE25538ND
2018-05-08AE25537ND
2018-05-08AE255392.00 ppb
2018-05-08AE25536ND
2018-08-23AE3825913.7 ppb
2018-08-23AE38257ND
2018-08-23AE382582.60 ppb
2018-08-23AE3826012.1 ppb
2018-11-05AE452211.80 ppb
2018-11-05AE45220ND
2018-11-05AE452182.10 ppb
2018-11-05AE452191.90 ppb
2019-01-15AE497775.40 ppb
2019-01-15AE4977613.1 ppb
2019-01-15AE49778ND
2019-01-15AE4977913.1 ppb
2019-06-06AE6940323.0 ppb
2019-06-06AE69400ND
2019-06-06AE694018.30 ppb
2019-06-06AE6940220.3 ppb
2019-07-18AE7499722.8 ppb
2019-07-18AE74990ND
2019-07-18AE749911.000 ppb
2019-07-18AE7499215.4 ppb
2019-10-08AE85941ND
2019-10-08AE85934ND
2019-10-08AE8594511.7 ppb
2019-10-08AE85943ND