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EWG's Tap Water Database — 2021 UPDATE

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Dibromochloromethane

City of Kirkland

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

 

96

Samples

0

Samples exceeding legal limit (MCL)

7

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND160ND
20150.274 ppb164ND - 1.33 ppb
20160.101 ppb163ND - 0.610 ppb
2017ND160ND
2018ND160ND
2019ND160ND

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
2014-01-2201337ND
2014-01-2201335ND
2014-01-2201336ND
2014-01-2201334ND
2014-04-2207025ND
2014-04-2207024ND
2014-04-2207026ND
2014-04-2207023ND
2014-07-2213068ND
2014-07-2213065ND
2014-07-2213066ND
2014-07-2213067ND
2014-10-2019830ND
2014-10-2019828ND
2014-10-2019831ND
2014-10-2019829ND
2015-01-2225704ND
2015-01-2225702ND
2015-01-2225701ND
2015-01-2225703ND
2015-04-2194103ND
2015-04-2194102ND
2015-04-2194101ND
2015-04-2194104ND
2015-07-2048702ND
2015-07-2048704ND
2015-07-2048701ND
2015-07-2048703ND
2015-10-19259021.33 ppb
2015-10-19259011.19 ppb
2015-10-19259041.13 ppb
2015-10-19259030.740 ppb
2016-01-19ND
2016-01-190.500 ppb
2016-01-190.610 ppb
2016-01-190.500 ppb
2016-04-19ND
2016-04-19ND
2016-04-19ND
2016-04-19ND
2016-07-18ND
2016-07-18ND
2016-07-18ND
2016-07-18ND
2016-10-17ND
2016-10-17ND
2016-10-17ND
2016-10-17ND
2017-01-17ND
2017-01-17ND
2017-01-17ND
2017-01-17ND
2017-04-17ND
2017-04-17ND
2017-04-17ND
2017-04-17ND
2017-07-17ND
2017-07-17ND
2017-07-17ND
2017-07-17ND
2017-10-11ND
2017-10-11ND
2017-10-11ND
2017-10-11ND
2018-01-17ND
2018-01-17ND
2018-01-17ND
2018-01-17ND
2018-04-10ND
2018-04-10ND
2018-04-10ND
2018-04-10ND
2018-07-12ND
2018-07-12ND
2018-07-12ND
2018-07-12ND
2018-10-08ND
2018-10-08ND
2018-10-08ND
2018-10-08ND
2019-01-17ND
2019-01-17ND
2019-01-17ND
2019-01-17ND
2019-04-09ND
2019-04-09ND
2019-04-09ND
2019-04-09ND
2019-07-19ND
2019-07-19ND
2019-07-19ND
2019-07-19ND
2019-10-16ND
2019-10-16ND
2019-10-16ND
2019-10-16ND