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EWG's Tap Water Database — 2021 UPDATE

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Dibromochloromethane

Kalispell Public Works

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

 

29

Samples

0

Samples exceeding legal limit (MCL)

1

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND100ND
2015ND20ND
2016ND20ND
2017ND100ND
2018ND20ND
20190.183 ppb31ND - 0.550 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
2014-01-17B14011323-001DND
2014-01-17B14011321-001DND
2014-01-17B14011320-001DND
2014-01-17B14011318-001DND
2014-01-17B14011317-001DND
2014-01-17B14011314-001DND
2014-01-17B14011310-001DND
2014-01-17B14011309-001DND
2014-08-12B14081374-002AND
2014-08-12B14081374-001AND
2015-08-10B15080907-002AND
2015-08-10B15080907-001AND
2016-08-10B16081190-002AND
2016-08-10B16081190-001AND
2017-01-25B17011609-008CND
2017-01-25B17011609-007CND
2017-01-25B17011609-006CND
2017-01-25B17011609-005CND
2017-01-25B17011609-004CND
2017-01-25B17011609-003CND
2017-01-25B17011609-002CND
2017-01-25B17011609-001CND
2017-08-08B17081164-002AND
2017-08-08B17081164-001AND
2018-08-15B18081922-002AND
2018-08-15B18081922-001AND
2019-04-151903379-01ND
2019-08-14B19081625-001A0.550 ppb
2019-08-14B19081625-002AND