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EWG's Tap Water Database — 2021 UPDATE

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Dibromochloromethane

Vidalia

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

 

97

Samples

0

Samples exceeding legal limit (MCL)

33

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20140.184 ppb192ND - 2.20 ppb
20150.147 ppb172ND - 1.30 ppb
20160.0265 ppb201ND - 0.530 ppb
20170.382 ppb189ND - 1.99 ppb
20180.713 ppb1613ND - 1.87 ppb
20190.471 ppb76ND - 0.920 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
2014-01-13AI26378ND
2014-02-26AI28716ND
2014-02-26AI28715ND
2014-02-26AI28714ND
2014-02-26AI28713ND
2014-04-21AI38492ND
2014-05-27AI414752.20 ppb
2014-05-27AI41474ND
2014-05-27AI41473ND
2014-05-27AI41472ND
2014-07-22AI46541ND
2014-08-26AI514901.30 ppb
2014-08-26AI51487ND
2014-08-26AI51488ND
2014-08-26AI51489ND
2014-11-24AI60106ND
2014-11-24AI60105ND
2014-11-24AI60104ND
2014-11-24AI60103ND
2015-02-24AI65499ND
2015-02-24AI65498ND
2015-02-24AI65497ND
2015-02-24AI65496ND
2015-03-31AI69906ND
2015-05-26AI78049ND
2015-05-26AI78048ND
2015-05-26AI78047ND
2015-05-26AI78046ND
2015-08-25AI875921.30 ppb
2015-08-25AI87591ND
2015-08-25AI87590ND
2015-08-25AI87589ND
2015-11-23AJ01563ND
2015-11-23AJ01564ND
2015-11-23AJ01565ND
2015-11-23AJ015661.20 ppb
2016-02-22AJ06915ND
2016-02-22AJ06914ND
2016-02-22AJ06913ND
2016-02-22AJ06912ND
2016-05-03AJ11352ND
2016-05-03AJ113510.530 ppb
2016-05-03AJ11350ND
2016-05-03AJ11349ND
2016-05-25AJ12897ND
2016-05-25AJ12896ND
2016-05-25AJ12895ND
2016-05-25AJ12894ND
2016-08-29AJ24597ND
2016-08-29AJ24596ND
2016-08-29AJ24595ND
2016-08-29AJ24594ND
2016-11-21AJ33988ND
2016-11-21AJ33987ND
2016-11-21AJ33986ND
2016-11-21AJ33985ND
2017-02-22AJ46958ND
2017-02-22AJ46959ND
2017-02-22AJ46960ND
2017-02-22AJ46961ND
2017-05-22AJ55910ND
2017-05-22AJ55909ND
2017-05-22AJ55908ND
2017-05-22AJ55907ND
2017-06-15AJ57792ND
2017-08-15171089-040.450 ppb
2017-08-15171089-031.32 ppb
2017-08-15171089-020.660 ppb
2017-08-15171089-010.770 ppb
2017-08-15171088-010.480 ppb
2017-11-29171477-020.350 ppb
2017-11-29171477-010.440 ppb
2017-11-29171477-031.99 ppb
2017-11-29171477-040.420 ppb
2018-02-26176015-04ND
2018-02-26176015-031.70 ppb
2018-02-26176015-02ND
2018-02-26176015-01ND
2018-05-23178478-040.510 ppb
2018-05-23178478-031.87 ppb
2018-05-23178478-020.720 ppb
2018-05-23178478-010.750 ppb
2018-08-14181606-040.610 ppb
2018-08-14181606-010.520 ppb
2018-08-14181606-020.620 ppb
2018-08-14181606-031.47 ppb
2018-11-14184489-040.390 ppb
2018-11-14184489-030.380 ppb
2018-11-14184489-020.380 ppb
2018-11-14184489-011.48 ppb
2019-02-11187528-010.920 ppb
2019-02-11187527-010.300 ppb
2019-02-11187526-010.300 ppb
2019-08-26187311-020.870 ppb
2019-08-26187311-03ND
2019-08-26187311-040.410 ppb
2019-08-26187311-010.500 ppb