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EWG's Tap Water Database — 2019 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.

 

89

Samples

0

Samples exceeding legal limit (MCL)

61

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
201210.7 ppb105ND - 68.7 ppb
201324.8 ppb1615ND - 84.2 ppb
20140.360 ppb155ND - 1.20 ppb
20153.68 ppb1613ND - 11.7 ppb
20161.49 ppb1612ND - 3.50 ppb
20171.25 ppb1611ND - 2.60 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
2012-06-18AB93084ND
2012-06-18AB930867.30 ppb
2012-06-18AB93080ND
2012-06-18AB93091ND
2012-06-18AB93083ND
2012-06-18AB93081ND
2012-11-1512115780051.90 ppb
2012-11-15121157800627.9 ppb
2012-11-1512115780071.40 ppb
2012-11-15121157800868.7 ppb
2013-02-0613022280121.50 ppb
2013-02-06130222801123.2 ppb
2013-02-0613022280101.50 ppb
2013-02-06130222801352.6 ppb
2013-06-12Q13021830019.80 ppb
2013-06-12Q13021830026.70 ppb
2013-06-12Q13021830031.20 ppb
2013-06-12Q130218300419.6 ppb
2013-09-23Q130788900469.1 ppb
2013-09-23Q1307889003ND
2013-09-23Q13078890024.30 ppb
2013-09-23Q130788900144.7 ppb
2013-12-12Q131762400151.9 ppb
2013-12-12Q131762400225.5 ppb
2013-12-12Q13176240031.10 ppb
2013-12-12Q131762400484.2 ppb
2014-02-13AC42883ND
2014-02-13AC428801.10 ppb
2014-02-13AC42879ND
2014-02-13AC42882ND
2014-04-07AC49622ND
2014-04-07AC496031.10 ppb
2014-04-07AC49605ND
2014-04-07AC49602ND
2014-09-10AC665171.20 ppb
2014-09-10AC66518ND
2014-09-10AC66526ND
2014-12-16AC750901.000 ppb
2014-12-16AC75089ND
2014-12-16AC75075ND
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
2015-09-30AD0909011.5 ppb
2015-09-30AD090913.40 ppb
2015-09-30AD09089ND
2015-09-30AD0909311.7 ppb
2015-12-07AD157054.50 ppb
2015-12-07AD157043.90 ppb
2015-12-07AD15697ND
2015-12-07AD15696ND
2016-03-09AD278601.30 ppb
2016-03-09AD27863ND
2016-03-09AD278593.50 ppb
2016-03-09AD278611.70 ppb
2016-06-14AD403983.00 ppb
2016-06-14AD40396ND
2016-06-14AD404131.70 ppb
2016-06-14AD404022.10 ppb
2016-09-30AD521591.60 ppb
2016-09-30AD52161ND
2016-09-30AD521621.000 ppb
2016-09-30AD521631.80 ppb
2016-12-08AD613891.90 ppb
2016-12-08AD61383ND
2016-12-08AD613881.90 ppb
2016-12-08AD613872.30 ppb
2017-03-07AD737012.30 ppb
2017-03-07AD736992.40 ppb
2017-03-07AD737021.000 ppb
2017-03-07AD737002.20 ppb
2017-05-22AD850142.00 ppb
2017-05-22AD85016ND
2017-05-22AD85015ND
2017-05-22AD85022ND
2017-09-19AD96766ND
2017-09-19AD967681.90 ppb
2017-09-19AD967631.80 ppb
2017-09-19AD96767ND
2017-11-21AE055472.60 ppb
2017-11-21AE055491.000 ppb
2017-11-21AE055501.10 ppb
2017-11-21AE055481.70 ppb