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EWG's Tap Water Database — 2021 UPDATE

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Dibromochloromethane

City of Radford

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

 

106

Samples

0

Samples exceeding legal limit (MCL)

46

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20140.395 ppb2113ND - 0.800 ppb
20150.241 ppb177ND - 0.700 ppb
20160.441 ppb1712ND - 0.800 ppb
20170.1000 ppb173ND - 0.600 ppb
20180.106 ppb173ND - 0.600 ppb
20190.365 ppb178ND - 1.20 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
2014-03-18E140202944ND
2014-03-18E1402029340.600 ppb
2014-03-18E1402029360.600 ppb
2014-03-18E1402029290.500 ppb
2014-03-18E1402029390.500 ppb
2014-03-18E140202938ND
2014-03-18E140202942ND
2014-03-18E140202927ND
2014-05-19E140405175ND
2014-05-19E1404051720.800 ppb
2014-05-19E1404051740.700 ppb
2014-05-19E1404051770.500 ppb
2014-09-09E1408005260.800 ppb
2014-09-09E1408005280.700 ppb
2014-09-09E1408005270.700 ppb
2014-09-09E1408005310.600 ppb
2014-10-20E140904099ND
2014-10-20E140904092ND
2014-10-20E1409040930.700 ppb
2014-10-20E1409040860.600 ppb
2014-10-20E140904091ND
2015-01-21VA010-DCLS0.500 ppb
2015-01-21VA010-DCLSND
2015-01-21VA010-DCLSND
2015-01-21VA010-DCLSND
2015-04-22VA010-DCLS0.600 ppb
2015-04-22VA010-DCLS0.500 ppb
2015-04-22VA010-DCLSND
2015-04-22VA010-DCLSND
2015-07-20VA010-DCLS0.700 ppb
2015-07-20VA010-DCLS0.600 ppb
2015-07-20VA010-DCLS0.600 ppb
2015-07-20VA010-DCLS0.600 ppb
2015-10-19VA010-DCLSND
2015-10-19VA010-DCLSND
2015-10-19VA010-DCLSND
2015-10-19VA010-DCLSND
2015-10-19VA010-DCLSND
2016-01-19E1601012350.600 ppb
2016-01-19E1601012310.500 ppb
2016-01-19E160101233ND
2016-01-19E160101230ND
2016-04-18E1602041660.600 ppb
2016-04-18E160204164ND
2016-04-18E160204163ND
2016-04-18E160204162ND
2016-07-18E1607018820.700 ppb
2016-07-18E1607018870.600 ppb
2016-07-18E1607018840.600 ppb
2016-07-18E1607018890.500 ppb
2016-10-17E1610015610.800 ppb
2016-10-17E1610015550.700 ppb
2016-10-17E1610015650.700 ppb
2016-10-17E1610015630.600 ppb
2016-10-17E1610015620.600 ppb
2017-01-19E170101157ND
2017-01-19E170101160ND
2017-01-19E170101154ND
2017-01-19E170101163ND
2017-04-18E170303540ND
2017-04-18E170303531ND
2017-04-18E170303537ND
2017-04-18E170303538ND
2017-06-20E170601079ND
2017-06-20E170601074ND
2017-06-20E170601077ND
2017-06-20E170601080ND
2017-10-17E1708040860.600 ppb
2017-10-17E1708040960.600 ppb
2017-10-17E1708040970.500 ppb
2017-10-17E170804089ND
2017-10-17E170804090ND
2018-01-16E180100299ND
2018-01-16E180100301ND
2018-01-16E180100303ND
2018-01-16E180100305ND
2018-01-16E180100310ND
2018-04-16E180305762ND
2018-04-16E180305768ND
2018-04-16E180305770ND
2018-04-16E180305771ND
2018-07-16E1807000500.600 ppb
2018-07-16E180700052ND
2018-07-16E1807000540.600 ppb
2018-07-16E1807000560.600 ppb
2018-10-22E181002479ND
2018-10-22E181002481ND
2018-10-22E181002483ND
2018-10-22E181002485ND
2019-01-22E1812066060.600 ppb
2019-01-22E181206608ND
2019-01-22E181206612ND
2019-01-22E181206617ND
2019-01-22E181206619ND
2019-04-16E190400325ND
2019-04-16E190400326ND
2019-04-16E190400327ND
2019-04-16E190400328ND
2019-07-16E1906060780.700 ppb
2019-07-16E190606079ND
2019-07-16E1906060800.600 ppb
2019-07-16E1906060810.600 ppb
2019-10-16E1910019591.20 ppb
2019-10-16E1910019600.800 ppb
2019-10-16E1910019610.900 ppb
2019-10-16E1910019620.800 ppb