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EWG's Tap Water Database — 2019 UPDATE

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Bromoform

Clayton County Water Authority

Bromoform, one of the total trihalomethanes (TTHMs), is formed when chlorine or other disinfectants are used to treat drinking water. Bromoform and other disinfection byproducts increase the risk of cancer and may cause problems during pregnancy. Click here to read more about disinfection byproducts.

 

298

Samples

0

Samples exceeding legal limit (MCL)

23

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20120.0729 ppb482ND - 2.20 ppb
2013ND500ND
20140.762 ppb5020ND - 2.30 ppb
2015ND500ND
20160.0240 ppb501ND - 1.20 ppb
2017ND500ND

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 0.5 ppb

The EWG Health Guideline of 0.5 ppb for bromoform was proposed in 2018 by the California Office of Environmental Health Hazard Assessment as 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
2012-02-01AH52455ND
2012-02-01AH52456ND
2012-02-01AH52457ND
2012-02-01AH52458ND
2012-02-01AH52459ND
2012-02-01AH52460ND
2012-02-01AH52461ND
2012-02-01AH52462ND
2012-03-05AH54186ND
2012-03-05AH54187ND
2012-04-17AH56857ND
2012-04-17AH56858ND
2012-04-17AH56859ND
2012-04-17AH56860ND
2012-04-17AH56861ND
2012-04-17AH56862ND
2012-04-17AH56863ND
2012-04-17AH56864ND
2012-04-17AH56865ND
2012-04-17AH56866ND
2012-04-17AH56867ND
2012-04-17AH56868ND
2012-07-17AH70297ND
2012-07-17AH702982.20 ppb
2012-07-17AH70299ND
2012-07-17AH70300ND
2012-07-17AH70301ND
2012-07-17AH70302ND
2012-07-17AH70303ND
2012-07-17AH70304ND
2012-07-17AH70305ND
2012-07-17AH70306ND
2012-07-17AH70307ND
2012-07-17AH70308ND
2012-07-25AH71225ND
2012-10-17AH82177ND
2012-10-17AH821781.30 ppb
2012-10-17AH82179ND
2012-10-17AH82180ND
2012-10-17AH82181ND
2012-10-17AH82182ND
2012-10-17AH82183ND
2012-10-17AH82184ND
2012-10-17AH82185ND
2012-10-17AH82186ND
2012-10-17AH82187ND
2012-10-17AH82188ND
2012-10-22AH82285ND
2013-01-14AH87321ND
2013-01-14AH87322ND
2013-01-14AH87323ND
2013-01-14AH87324ND
2013-01-14AH87325ND
2013-01-14AH87326ND
2013-01-14AH87327ND
2013-01-14AH87328ND
2013-01-14AH87329ND
2013-01-14AH87330ND
2013-01-14AH87331ND
2013-01-14AH87332ND
2013-04-16AH99123ND
2013-04-16AH99124ND
2013-04-16AH99125ND
2013-04-16AH99126ND
2013-04-16AH99127ND
2013-04-16AH99128ND
2013-04-16AH99129ND
2013-04-16AH99130ND
2013-04-16AH99131ND
2013-04-16AH99132ND
2013-04-16AH99133ND
2013-04-16AH99134ND
2013-04-16AH99135ND
2013-04-16AH99136ND
2013-07-16AI06516ND
2013-07-16AI06517ND
2013-07-16AI06518ND
2013-07-16AI06519ND
2013-07-16AI06520ND
2013-07-16AI06521ND
2013-07-16AI06522ND
2013-07-16AI06523ND
2013-07-16AI06524ND
2013-07-16AI06525ND
2013-07-16AI06526ND
2013-07-16AI06527ND
2013-10-17AI20947ND
2013-10-17AI20948ND
2013-10-17AI20949ND
2013-10-17AI20950ND
2013-10-17AI20951ND
2013-10-17AI20952ND
2013-10-17AI20953ND
2013-10-17AI20954ND
2013-10-17AI20955ND
2013-10-17AI20956ND
2013-10-17AI20957ND
2013-10-17AI20958ND
2014-01-15AI26687ND
2014-01-15AI26688ND
2014-01-15AI26689ND
2014-01-15AI26690ND
2014-01-15AI26691ND
2014-01-15AI26692ND
2014-01-15AI26693ND
2014-01-15AI26694ND
2014-01-15AI26695ND
2014-01-15AI26696ND
2014-01-15AI26697ND
2014-01-15AI26698ND
2014-02-10AI27790ND
2014-02-10AI27791ND
2014-04-16AI380941.40 ppb
2014-04-16AI380952.00 ppb
2014-04-16AI380961.30 ppb
2014-04-16AI380972.10 ppb
2014-04-16AI380981.20 ppb
2014-04-16AI380991.80 ppb
2014-04-16AI381001.90 ppb
2014-04-16AI381012.10 ppb
2014-04-16AI381021.70 ppb
2014-04-16AI381031.90 ppb
2014-04-16AI381041.90 ppb
2014-04-16AI381052.10 ppb
2014-07-15AI45939ND
2014-07-15AI459402.30 ppb
2014-07-15AI45941ND
2014-07-15AI459422.20 ppb
2014-07-15AI45943ND
2014-07-15AI459441.60 ppb
2014-07-15AI459451.90 ppb
2014-07-15AI459462.20 ppb
2014-07-15AI459472.30 ppb
2014-07-15AI45948ND
2014-07-15AI459492.10 ppb
2014-07-15AI459502.10 ppb
2014-10-21AI57933ND
2014-10-21AI57934ND
2014-10-21AI57935ND
2014-10-21AI57936ND
2014-10-21AI57937ND
2014-10-21AI57938ND
2014-10-21AI57939ND
2014-10-21AI57940ND
2014-10-21AI57941ND
2014-10-21AI57942ND
2014-10-21AI57943ND
2014-10-21AI57944ND
2015-01-22AI63351ND
2015-01-22AI63352ND
2015-01-22AI63353ND
2015-01-22AI63354ND
2015-01-22AI63355ND
2015-01-22AI63356ND
2015-01-22AI63357ND
2015-01-22AI63358ND
2015-01-22AI63359ND
2015-01-22AI63360ND
2015-01-22AI63361ND
2015-01-22AI63362ND
2015-02-17AI64997ND
2015-02-17AI64998ND
2015-04-16AI75064ND
2015-04-16AI75065ND
2015-04-16AI75066ND
2015-04-16AI75067ND
2015-04-16AI75068ND
2015-04-16AI75069ND
2015-04-16AI75070ND
2015-04-16AI75071ND
2015-04-16AI75072ND
2015-04-16AI75073ND
2015-04-16AI75074ND
2015-04-16AI75075ND
2015-07-09AI82423ND
2015-07-09AI82424ND
2015-07-09AI82425ND
2015-07-09AI82426ND
2015-07-09AI82427ND
2015-07-09AI82428ND
2015-07-09AI82429ND
2015-07-09AI82430ND
2015-07-09AI82431ND
2015-07-09AI82432ND
2015-07-09AI82433ND
2015-07-09AI82434ND
2015-10-13AI92841ND
2015-10-13AI92842ND
2015-10-13AI92843ND
2015-10-13AI92844ND
2015-10-13AI92845ND
2015-10-13AI92846ND
2015-10-13AI92847ND
2015-10-13AI92848ND
2015-10-13AI92849ND
2015-10-13AI92850ND
2015-10-13AI92851ND
2015-10-13AI92852ND
2016-01-19AJ04614ND
2016-01-19AJ04615ND
2016-01-19AJ04616ND
2016-01-19AJ04617ND
2016-01-19AJ04618ND
2016-01-19AJ04619ND
2016-01-19AJ04620ND
2016-01-19AJ04621ND
2016-01-19AJ04622ND
2016-01-19AJ04623ND
2016-01-19AJ04624ND
2016-01-19AJ04625ND
2016-02-05AJ05932ND
2016-02-05AJ05933ND
2016-04-19AJ10523ND
2016-04-19AJ10524ND
2016-04-19AJ10525ND
2016-04-19AJ10526ND
2016-04-19AJ10527ND
2016-04-19AJ10528ND
2016-04-19AJ10529ND
2016-04-19AJ10530ND
2016-04-19AJ10531ND
2016-04-19AJ10532ND
2016-04-19AJ10533ND
2016-04-19AJ10534ND
2016-07-20AJ18682ND
2016-07-20AJ18683ND
2016-07-20AJ18684ND
2016-07-20AJ18685ND
2016-07-20AJ18686ND
2016-07-20AJ18687ND
2016-07-20AJ18688ND
2016-07-20AJ18689ND
2016-07-20AJ18690ND
2016-07-20AJ18691ND
2016-07-20AJ18692ND
2016-07-20AJ18693ND
2016-10-18AJ31714ND
2016-10-18AJ31715ND
2016-10-18AJ31716ND
2016-10-18AJ317171.20 ppb
2016-10-18AJ31718ND
2016-10-18AJ31719ND
2016-10-18AJ31720ND
2016-10-18AJ31721ND
2016-10-18AJ31722ND
2016-10-18AJ31723ND
2016-10-18AJ31724ND
2016-10-18AJ31725ND
2017-01-18AJ40978ND
2017-01-18AJ40979ND
2017-01-18AJ40980ND
2017-01-18AJ40981ND
2017-01-18AJ40982ND
2017-01-18AJ40983ND
2017-01-18AJ40984ND
2017-01-18AJ40985ND
2017-01-18AJ40986ND
2017-01-18AJ40987ND
2017-01-18AJ40988ND
2017-01-18AJ40989ND
2017-04-18AJ53560ND
2017-04-18AJ53561ND
2017-04-18AJ53562ND
2017-04-18AJ53563ND
2017-04-18AJ53564ND
2017-04-18AJ53565ND
2017-04-18AJ53566ND
2017-04-18AJ53567ND
2017-04-18AJ53621ND
2017-04-18AJ53622ND
2017-04-18AJ53623ND
2017-04-18AJ53624ND
2017-04-18AJ53625ND
2017-04-18AJ53626ND
2017-07-20AJ61172ND
2017-07-20AJ61173ND
2017-07-20AJ61174ND
2017-07-20AJ61175ND
2017-07-20AJ61176ND
2017-07-20AJ61177ND
2017-07-20AJ61178ND
2017-07-20AJ61179ND
2017-07-20AJ61180ND
2017-07-20AJ61181ND
2017-07-20AJ61182ND
2017-07-20AJ61183ND
2017-10-26AJ72485ND
2017-10-26AJ72486ND
2017-10-26AJ72487ND
2017-10-26AJ72488ND
2017-10-26AJ72489ND
2017-10-26AJ72490ND
2017-10-26AJ72491ND
2017-10-26AJ72492ND
2017-10-26AJ72493ND
2017-10-26AJ72494ND
2017-10-26AJ72495ND
2017-10-26AJ72496ND