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EWG's Tap Water Database — 2021 UPDATE

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Dibromochloromethane

Bloomfield Water Department

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)

82

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20140.731 ppb1615ND - 1.10 ppb
20151.000 ppb16160.600 ppb - 1.60 ppb
20160.838 ppb16160.500 ppb - 1.50 ppb
20170.869 ppb16160.600 ppb - 1.20 ppb
20180.656 ppb1612ND - 1.40 ppb
20190.306 ppb167ND - 1.000 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
2014-02-143402140461.10 ppb
2014-02-143402140480.900 ppb
2014-02-143402140501.000 ppb
2014-02-143402140520.900 ppb
2014-05-16340529005ND
2014-05-163405290040.600 ppb
2014-05-163405290020.700 ppb
2014-05-163405290030.600 ppb
2014-08-153408150960.500 ppb
2014-08-153408150980.800 ppb
2014-08-153408150940.800 ppb
2014-08-153408150920.600 ppb
2014-11-143411170040.700 ppb
2014-11-143411170030.800 ppb
2014-11-143411170050.800 ppb
2014-11-143411170020.900 ppb
2015-02-133502170780.800 ppb
2015-02-133502170800.700 ppb
2015-02-133502170821.000 ppb
2015-02-133502170840.800 ppb
2015-05-153505180890.600 ppb
2015-05-153505180831.000 ppb
2015-05-153505180870.800 ppb
2015-05-153505180850.800 ppb
2015-08-143508250581.30 ppb
2015-08-143508250521.60 ppb
2015-08-143508250541.30 ppb
2015-08-143508250561.40 ppb
2015-11-163511170491.20 ppb
2015-11-163511170450.900 ppb
2015-11-163511170470.800 ppb
2015-11-163511170511.000 ppb
2016-02-113602120190.600 ppb
2016-02-113602120130.700 ppb
2016-02-113602120170.600 ppb
2016-02-113602120150.500 ppb
2016-05-163605190200.500 ppb
2016-05-163605190180.700 ppb
2016-05-163605190240.600 ppb
2016-05-163605190220.600 ppb
2016-08-153608160340.900 ppb
2016-08-153608160400.700 ppb
2016-08-153608160380.700 ppb
2016-08-153608160360.700 ppb
2016-11-163611180251.30 ppb
2016-11-163611180231.40 ppb
2016-11-163611180271.40 ppb
2016-11-163611180211.50 ppb
2017-02-153702160610.700 ppb
2017-02-153702160590.700 ppb
2017-02-153702160650.600 ppb
2017-02-153702160630.600 ppb
2017-05-153705161550.800 ppb
2017-05-153705161510.800 ppb
2017-05-153705161490.800 ppb
2017-05-153705161530.700 ppb
2017-08-153708180951.10 ppb
2017-08-153708180971.20 ppb
2017-08-153708180931.000 ppb
2017-08-163708180991.20 ppb
2017-11-143711160160.800 ppb
2017-11-143711160121.000 ppb
2017-11-143711160140.900 ppb
2017-11-153711160181.000 ppb
2018-02-153802160150.700 ppb
2018-02-153802160130.800 ppb
2018-02-153802160110.700 ppb
2018-02-153802160090.700 ppb
2018-05-15380516152ND
2018-05-15380516146ND
2018-05-15380516150ND
2018-05-15380516148ND
2018-08-153808160800.800 ppb
2018-08-153808160740.700 ppb
2018-08-153808160820.800 ppb
2018-08-153808160780.800 ppb
2018-11-153811160611.10 ppb
2018-11-153811160631.000 ppb
2018-11-153811160651.000 ppb
2018-11-153811160591.40 ppb
2019-02-15390215013.10.500 ppb
2019-02-15390215012.1ND
2019-02-15390215011.1ND
2019-02-15390215010.1ND
2019-05-15390516089.1ND
2019-05-15390516092.1ND
2019-05-15390516091.1ND
2019-05-15390516090.1ND
2019-08-15390815044.10.800 ppb
2019-08-15390815046.11.000 ppb
2019-08-15390815047.10.700 ppb
2019-08-15390815045.10.800 ppb
2019-11-14391115066.10.600 ppb
2019-11-14391115065.1ND
2019-11-14391115064.1ND
2019-11-14391115067.10.500 ppb