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Dibromochloromethane

Lurton-Pelsor Water Association

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.

 

11

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20100.500 ppb21ND - 1.000 ppb
2011ND10ND
2012ND20ND
20130.0760 ppb21ND - 0.152 ppb
2014ND30ND
2015ND10ND

ppb = parts per billion.

State and national drinking water standards and health guidelines

Health Guideline 0.1 ppb

The 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.

EPA Maximum Contaminant
Level Goal (MCLG)60.0 ppb

A non-enforceable federal health guideline. For cancer-causing chemicals, these health goals are typically set to zero.

ppb = parts per billion.

All test results

Date Lab ID Result
2010-03-15100770005031.000 ppb
2010-04-0710098002101ND
2011-05-3011153001201ND
2012-04-2312117005201ND
2012-05-2312145007902ND
2013-04-0913101005501ND
2013-05-22131430018010.152 ppb
2014-05-1914143000501ND
2014-05-1914143000402ND
2014-05-1914143000602ND
2015-04-2115113005801ND