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EWG's Tap Water Database — 2021 UPDATE

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Dibromochloromethane

Cole County PWSD 2

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

 

32

Samples

0

Samples exceeding legal limit (MCL)

5

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013N/A00N/A
20140.130 ppb81ND - 1.04 ppb
20150.216 ppb92ND - 1.21 ppb
20160.680 ppb21ND - 1.36 ppb
2017ND20ND
2018ND90ND
20190.545 ppb21ND - 1.09 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
2014-03-06AC20723ND
2014-03-06AC20725ND
2014-03-06AC20726ND
2014-03-06AC20727ND
2014-03-06AC20728ND
2014-03-06AC20724ND
2014-09-11AC34184ND
2014-09-11AC341851.04 ppb
2015-02-25AC42786ND
2015-02-25AC42785ND
2015-02-25AC42784ND
2015-02-25AC42782ND
2015-02-25AC42783ND
2015-02-25AC42787ND
2015-02-25AC427880.730 ppb
2015-08-25AC573841.21 ppb
2015-08-25AC57383ND
2016-07-21AC797631.36 ppb
2016-07-21AC79762ND
2017-08-23AD03378ND
2017-08-23AD03379ND
2018-05-07AD19068ND
2018-05-07AD19069ND
2018-05-07AD19070ND
2018-05-07AD19071ND
2018-05-07AD19072ND
2018-05-07AD19073ND
2018-05-07AD19074ND
2018-08-15AD31180ND
2018-08-15AD31181ND
2019-08-28AD53907ND
2019-08-28AD539081.09 ppb