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EWG's Tap Water Database — 2021 UPDATE

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Dibromochloromethane

City of Bellingham Water Division

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

 

198

Samples

0

Samples exceeding legal limit (MCL)

28

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013N/A00N/A
2014ND330ND
20150.1000 ppb336ND - 0.600 ppb
20160.0939 ppb336ND - 0.600 ppb
20170.112 ppb337ND - 0.600 ppb
20180.0636 ppb334ND - 0.600 ppb
20190.0788 ppb335ND - 0.600 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
2014-03-0308900ND
2014-03-0308906ND
2014-03-0308903ND
2014-03-0308902ND
2014-03-0308901ND
2014-03-0308907ND
2014-03-0308904ND
2014-03-0308905ND
2014-05-0118450ND
2014-05-0118451ND
2014-05-0118454ND
2014-05-0118455ND
2014-05-0118452ND
2014-05-0118453ND
2014-05-0118456ND
2014-05-0118457ND
2014-08-0635427ND
2014-08-0635428ND
2014-08-0634472ND
2014-08-0634469ND
2014-08-0634471ND
2014-08-0634468ND
2014-08-0634473ND
2014-08-0634470ND
2014-08-0634361ND
2014-11-0348787ND
2014-11-0348785ND
2014-11-0348784ND
2014-11-0348788ND
2014-11-0348790ND
2014-11-0348786ND
2014-11-0348791ND
2014-11-0348789ND
2015-02-0405146ND
2015-02-0405152ND
2015-02-0405151ND
2015-02-0405147ND
2015-02-0405149ND
2015-02-0405148ND
2015-02-0405150ND
2015-02-0405518ND
2015-05-0619994ND
2015-05-0619987ND
2015-05-0619993ND
2015-05-0619992ND
2015-05-0619989ND
2015-05-0619991ND
2015-05-0619988ND
2015-05-0619990ND
2015-06-0425392ND
2015-08-04355920.600 ppb
2015-08-04355910.500 ppb
2015-08-04355900.600 ppb
2015-08-04355850.500 ppb
2015-08-04355870.600 ppb
2015-08-04355890.500 ppb
2015-08-0435586ND
2015-08-0435588ND
2015-11-0252303ND
2015-11-0252302ND
2015-11-0252305ND
2015-11-0252304ND
2015-11-0252308ND
2015-11-0252306ND
2015-11-0252309ND
2015-11-0252307ND
2016-02-02ND
2016-02-02ND
2016-02-02ND
2016-02-02ND
2016-02-02ND
2016-02-02ND
2016-02-02ND
2016-02-02ND
2016-05-04ND
2016-05-11ND
2016-05-11ND
2016-05-11ND
2016-05-11ND
2016-05-11ND
2016-05-11ND
2016-05-11ND
2016-05-11ND
2016-08-030.500 ppb
2016-08-030.500 ppb
2016-08-030.500 ppb
2016-08-030.500 ppb
2016-08-030.600 ppb
2016-08-03ND
2016-08-03ND
2016-08-030.500 ppb
2016-11-01ND
2016-11-01ND
2016-11-01ND
2016-11-01ND
2016-11-01ND
2016-11-01ND
2016-11-01ND
2016-11-01ND
2017-02-08ND
2017-02-08ND
2017-02-08ND
2017-02-08ND
2017-02-08ND
2017-02-08ND
2017-02-08ND
2017-02-08ND
2017-05-17ND
2017-05-17ND
2017-05-17ND
2017-05-17ND
2017-05-17ND
2017-05-17ND
2017-05-17ND
2017-05-17ND
2017-08-02ND
2017-08-100.500 ppb
2017-08-100.500 ppb
2017-08-10ND
2017-08-100.600 ppb
2017-08-10ND
2017-08-100.500 ppb
2017-08-10ND
2017-08-10ND
2017-11-01ND
2017-11-01ND
2017-11-010.500 ppb
2017-11-010.500 ppb
2017-11-01ND
2017-11-01ND
2017-11-01ND
2017-11-010.600 ppb
2018-02-12ND
2018-02-12ND
2018-02-12ND
2018-02-12ND
2018-02-12ND
2018-02-12ND
2018-02-12ND
2018-02-12ND
2018-05-04ND
2018-05-04ND
2018-05-04ND
2018-05-04ND
2018-05-04ND
2018-05-04ND
2018-05-04ND
2018-05-04ND
2018-07-31ND
2018-08-17ND
2018-08-17ND
2018-08-170.500 ppb
2018-08-170.500 ppb
2018-08-17ND
2018-08-170.600 ppb
2018-08-170.500 ppb
2018-08-17ND
2018-11-05ND
2018-11-05ND
2018-11-05ND
2018-11-05ND
2018-11-05ND
2018-11-05ND
2018-11-05ND
2018-11-05ND
2019-02-05ND
2019-02-06ND
2019-02-06ND
2019-02-06ND
2019-02-06ND
2019-02-06ND
2019-02-06ND
2019-02-06ND
2019-05-07ND
2019-05-07ND
2019-05-07ND
2019-05-07ND
2019-05-07ND
2019-05-07ND
2019-05-07ND
2019-05-07ND
2019-05-07ND
2019-08-07ND
2019-08-07ND
2019-08-07ND
2019-08-070.500 ppb
2019-08-07ND
2019-08-070.600 ppb
2019-08-07ND
2019-08-07ND
2019-11-04ND
2019-11-04ND
2019-11-04ND
2019-11-040.500 ppb
2019-11-04ND
2019-11-040.500 ppb
2019-11-040.500 ppb
2019-11-04ND