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EWG's Tap Water Database — 2021 UPDATE

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Dibromochloromethane

Iowa-American Water Company - Davenport

Dibromochloromethane, one of the total trihalomethanes (TTHMs), is formed when chlorine or other disinfectants are used to treat drinking water. Dibromochloromethane 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

 

203

Samples

0

Samples exceeding legal limit (MCL)

110

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20140.247 ppb3214ND - 0.600 ppb
20150.341 ppb3419ND - 0.900 ppb
20160.341 ppb3917ND - 1.90 ppb
20170.534 ppb3226ND - 0.800 ppb
20180.438 ppb3219ND - 1.10 ppb
20190.268 ppb3415ND - 0.700 ppb

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 0.1 ppb

The EWG Health Guideline of 0.1 ppb for dibromochloromethane 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
2014-01-162029889ND
2014-01-1620298900.500 ppb
2014-01-1620298910.500 ppb
2014-01-162029892ND
2014-01-1620298930.500 ppb
2014-01-1620298940.600 ppb
2014-01-1620298970.600 ppb
2014-01-1620298980.600 ppb
2014-04-172046779ND
2014-04-1720467800.600 ppb
2014-04-1720467810.600 ppb
2014-04-1720467820.600 ppb
2014-04-1720467830.600 ppb
2014-04-1720467840.500 ppb
2014-04-1720467850.500 ppb
2014-04-1720467860.600 ppb
2014-07-012065392ND
2014-07-012065393ND
2014-07-012065394ND
2014-07-012065395ND
2014-07-012065396ND
2014-07-0120653970.600 ppb
2014-07-012065398ND
2014-07-012065399ND
2014-10-212088035ND
2014-10-212088036ND
2014-10-212088037ND
2014-10-212088038ND
2014-10-212088039ND
2014-10-212088040ND
2014-10-212088041ND
2014-10-212088042ND
2015-01-1328010101ND
2015-01-13280102010.800 ppb
2015-01-1328010301ND
2015-01-1328010401ND
2015-01-1328010601ND
2015-01-13280107010.700 ppb
2015-01-1328010801ND
2015-01-1328010901ND
2015-01-28282982010.600 ppb
2015-01-2828298301ND
2015-04-2228705601ND
2015-04-22287057010.600 ppb
2015-04-22287058010.500 ppb
2015-04-22287059010.500 ppb
2015-04-22287060010.600 ppb
2015-04-22287061010.700 ppb
2015-04-22287062010.500 ppb
2015-04-22287063010.600 ppb
2015-07-06294945010.600 ppb
2015-07-06294946010.500 ppb
2015-07-06294947010.600 ppb
2015-07-06294948010.500 ppb
2015-07-06294949010.700 ppb
2015-07-0629495001ND
2015-07-06294951010.700 ppb
2015-07-0629495201ND
2015-10-1430303401ND
2015-10-1430303501ND
2015-10-1430302801ND
2015-10-1430302901ND
2015-10-14303030010.500 ppb
2015-10-1430303101ND
2015-10-14303032010.500 ppb
2015-10-14303033010.900 ppb
2016-01-1930998301ND
2016-01-1930998401ND
2016-01-19309985010.500 ppb
2016-01-19309986010.500 ppb
2016-01-19309987010.600 ppb
2016-01-19309988010.500 ppb
2016-01-19309989010.500 ppb
2016-01-19309990010.500 ppb
2016-04-1231637801ND
2016-04-1231637901ND
2016-04-1231638001ND
2016-04-1231638101ND
2016-04-1231638201ND
2016-04-1231638301ND
2016-04-1231638401ND
2016-04-1231638501ND
2016-07-27331463010.800 ppb
2016-07-27331464010.600 ppb
2016-07-27331466011.90 ppb
2016-07-27331467010.600 ppb
2016-07-27331468010.600 ppb
2016-07-27331461010.600 ppb
2016-07-27331462011.10 ppb
2016-07-27331465010.700 ppb
2016-08-1033296701ND
2016-08-1033296801ND
2016-08-10332970011.50 ppb
2016-08-1033297101ND
2016-08-1033297201ND
2016-09-1433536701ND
2016-09-1433536801ND
2016-10-0533563901ND
2016-10-05335640010.900 ppb
2016-10-0533564101ND
2016-10-0533564201ND
2016-10-0533564301ND
2016-10-05335644010.900 ppb
2016-10-0533564501ND
2016-10-0533564601ND
2017-01-1734201301ND
2017-01-17342014010.700 ppb
2017-01-17342015010.500 ppb
2017-01-17342016010.500 ppb
2017-01-17342017010.500 ppb
2017-01-17342018010.600 ppb
2017-01-1734201901ND
2017-01-17342020010.600 ppb
2017-04-2435104701ND
2017-04-24351048010.600 ppb
2017-04-24351049010.600 ppb
2017-04-24351050010.800 ppb
2017-04-24351051010.700 ppb
2017-04-24351052010.800 ppb
2017-04-2435105301ND
2017-04-24351054010.600 ppb
2017-07-17361317010.600 ppb
2017-07-17361318010.800 ppb
2017-07-17361319010.800 ppb
2017-07-17361320010.800 ppb
2017-07-17361321010.800 ppb
2017-07-17361322010.800 ppb
2017-07-17361323010.600 ppb
2017-07-17361324010.800 ppb
2017-10-02372136010.500 ppb
2017-10-02372137010.600 ppb
2017-10-02372138010.700 ppb
2017-10-02372139010.500 ppb
2017-10-02372140010.700 ppb
2017-10-02372141010.600 ppb
2017-10-0237214201ND
2017-10-0237214301ND
2018-01-09381901010.500 ppb
2018-01-09381902010.600 ppb
2018-01-09381903010.600 ppb
2018-01-09381904010.600 ppb
2018-01-09381905010.600 ppb
2018-01-09381906010.600 ppb
2018-01-09381907010.600 ppb
2018-01-09381908010.700 ppb
2018-04-09390052010.600 ppb
2018-04-09390053010.800 ppb
2018-04-09390054011.10 ppb
2018-04-09390055011.10 ppb
2018-04-09390056011.10 ppb
2018-04-09390057010.800 ppb
2018-04-09390058010.900 ppb
2018-04-09390059010.900 ppb
2018-07-0940156501ND
2018-07-09401566010.600 ppb
2018-07-0940156701ND
2018-07-0940156801ND
2018-07-09401569010.500 ppb
2018-07-09401570010.800 ppb
2018-07-0940157101ND
2018-07-0940157201ND
2018-10-0241284901ND
2018-10-0241285001ND
2018-10-0241285101ND
2018-10-0241285201ND
2018-10-0241285301ND
2018-10-0241285401ND
2018-10-0241285501ND
2018-10-0241285601ND
2019-01-0942517701ND
2019-01-09425178010.600 ppb
2019-01-09425179010.700 ppb
2019-01-09425180010.600 ppb
2019-01-09425181010.700 ppb
2019-01-09425182010.600 ppb
2019-01-09425183010.500 ppb
2019-01-09425184010.600 ppb
2019-04-0844000101ND
2019-04-0844000201ND
2019-04-0844000301ND
2019-04-0844000401ND
2019-04-0844000501ND
2019-04-0844000601ND
2019-04-0844000701ND
2019-04-0844000801ND
2019-07-15449823010.700 ppb
2019-07-1544983701ND
2019-07-15449838010.600 ppb
2019-07-15449839010.500 ppb
2019-07-15449840010.600 ppb
2019-07-15449841010.600 ppb
2019-07-15449842010.600 ppb
2019-07-15449843010.600 ppb
2019-08-2645720801ND
2019-08-26457209010.600 ppb
2019-10-1446778601ND
2019-10-1446778701ND
2019-10-1446778801ND
2019-10-1446778901ND
2019-10-1446779001ND
2019-10-1446779101ND
2019-10-1446779201ND
2019-10-1446779501ND