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EWG's Tap Water Database — 2021 UPDATE

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Dichloroacetic acid

Catoosa Utility District Authority

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)

68

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20143.33 ppb1610ND - 13.0 ppb
20153.38 ppb1611ND - 11.0 ppb
20162.74 ppb168ND - 14.0 ppb
20176.00 ppb1614ND - 14.0 ppb
20185.36 ppb1612ND - 17.0 ppb
20194.75 ppb1613ND - 13.0 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
2014-02-17AI28004ND
2014-02-17AI28003ND
2014-02-17AI280028.70 ppb
2014-02-17AI280016.70 ppb
2014-05-19AI40766ND
2014-05-19AI407651.90 ppb
2014-05-19AI40764ND
2014-05-19AI407633.60 ppb
2014-08-18AI50322ND
2014-08-18AI503213.50 ppb
2014-08-18AI5032313.0 ppb
2014-08-18AI503249.50 ppb
2014-11-18AI597981.10 ppb
2014-11-18AI597971.30 ppb
2014-11-18AI59796ND
2014-11-18AI597953.90 ppb
2015-02-16AI649747.90 ppb
2015-02-16AI649731.10 ppb
2015-02-16AI64972ND
2015-02-16AI649712.60 ppb
2015-05-18AI773793.50 ppb
2015-05-18AI77380ND
2015-05-18AI773829.80 ppb
2015-05-18AI773819.30 ppb
2015-08-17AI867271.40 ppb
2015-08-17AI867264.30 ppb
2015-08-17AI86725ND
2015-08-17AI867242.00 ppb
2015-11-17AJ01235ND
2015-11-17AJ012341.20 ppb
2015-11-17AJ01233ND
2015-11-17AJ0123211.0 ppb
2016-02-16AJ06534ND
2016-02-16AJ065333.10 ppb
2016-02-16AJ06535ND
2016-02-16AJ06536ND
2016-05-16AJ12250ND
2016-05-16AJ122492.90 ppb
2016-05-16AJ12248ND
2016-05-16AJ122473.90 ppb
2016-08-15AJ22681ND
2016-08-15AJ226803.90 ppb
2016-08-15AJ22679ND
2016-08-15AJ226782.50 ppb
2016-11-14AJ3343214.0 ppb
2016-11-14AJ334356.20 ppb
2016-11-14AJ334347.30 ppb
2016-11-14AJ33433ND
2017-02-20AJ46700ND
2017-02-20AJ466991.90 ppb
2017-02-20AJ466988.60 ppb
2017-02-20AJ466979.40 ppb
2017-05-15AJ55427ND
2017-05-15AJ554261.90 ppb
2017-05-15AJ5542514.0 ppb
2017-05-15AJ5542412.0 ppb
2017-08-14AJ640478.70 ppb
2017-08-14AJ640465.30 ppb
2017-08-14AJ640483.50 ppb
2017-08-14AJ640491.10 ppb
2017-11-15AJ738678.50 ppb
2017-11-15AJ738669.10 ppb
2017-11-15AJ738651.000 ppb
2017-11-15AJ7386411.0 ppb
2018-02-19AJ841061.40 ppb
2018-02-19AJ841051.80 ppb
2018-02-19AJ84104ND
2018-02-19AJ841039.70 ppb
2018-05-15AJ8955913.0 ppb
2018-05-15AJ89560ND
2018-05-15AJ895625.80 ppb
2018-05-15AJ895618.40 ppb
2018-08-15AJ9797716.0 ppb
2018-08-15AJ9797617.0 ppb
2018-08-15AJ97975ND
2018-08-15AJ979744.60 ppb
2018-11-12AK057642.90 ppb
2018-11-12AK057632.80 ppb
2018-11-12AK05762ND
2018-11-12AK057612.40 ppb
2019-02-18AK11468ND
2019-02-18AK114671.80 ppb
2019-02-18AK114691.60 ppb
2019-02-18AK114701.20 ppb
2019-05-13AK173374.80 ppb
2019-05-13AK173367.40 ppb
2019-05-13AK17335ND
2019-05-13AK1733413.0 ppb
2019-08-19AK267387.80 ppb
2019-08-19AK2673712.0 ppb
2019-08-19AK267361.90 ppb
2019-08-19AK2673512.0 ppb
2019-11-18AK369812.40 ppb
2019-11-18AK369844.40 ppb
2019-11-18AK369835.70 ppb
2019-11-18AK36982ND