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EWG's Tap Water Database — 2021 UPDATE

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Dibromochloromethane

Woodbury Water System

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.

 

6

Samples

0

Samples exceeding legal limit (MCL)

5

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20140.591 ppb110.591 ppb
20150.936 ppb110.936 ppb
20160.686 ppb110.686 ppb
2017ND10ND
20180.892 ppb110.892 ppb
20191.52 ppb111.52 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 Result
2014-11-110.591 ppb
2015-08-100.936 ppb
2016-08-090.686 ppb
2017-08-01ND
2018-08-070.892 ppb
2019-08-131.52 ppb