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EWG's Tap Water Database — 2021 UPDATE

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Dibromochloromethane

WVAWC - New River Regional Water Treatment Plant

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

 

97

Samples

0

Samples exceeding legal limit (MCL)

83

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013N/A00N/A
20141.09 ppb1615ND - 2.20 ppb
20150.925 ppb16160.500 ppb - 1.90 ppb
20161.06 ppb1715ND - 2.50 ppb
20170.650 ppb1612ND - 1.40 ppb
20180.550 ppb1610ND - 1.50 ppb
20190.813 ppb1615ND - 1.40 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
2014-02-11248040010.500 ppb
2014-02-11248039010.900 ppb
2014-02-1124803801ND
2014-02-11248037010.500 ppb
2014-05-12256268010.800 ppb
2014-05-12256267010.700 ppb
2014-05-12256266010.900 ppb
2014-05-12256265010.700 ppb
2014-08-12267878012.00 ppb
2014-08-12267877012.20 ppb
2014-08-12267879012.10 ppb
2014-08-12267880012.00 ppb
2014-11-11274812011.10 ppb
2014-11-11274811011.000 ppb
2014-11-11274810011.000 ppb
2014-11-11274809011.10 ppb
2015-02-10281233010.700 ppb
2015-02-10281232010.700 ppb
2015-02-10281231010.500 ppb
2015-02-10281230010.700 ppb
2015-05-11288795010.500 ppb
2015-05-11288796010.700 ppb
2015-05-11288798010.700 ppb
2015-05-11288797010.600 ppb
2015-08-12298349011.50 ppb
2015-08-12298348011.90 ppb
2015-08-12298347011.40 ppb
2015-08-12298346011.50 ppb
2015-11-09305283010.900 ppb
2015-11-09305282010.800 ppb
2015-11-09305281010.700 ppb
2015-11-09305280011.000 ppb
2016-02-0831174701ND
2016-02-08311746010.600 ppb
2016-02-08311748010.800 ppb
2016-02-08311749010.700 ppb
2016-05-09319030011.10 ppb
2016-05-09319029010.800 ppb
2016-05-0931902801ND
2016-05-09319027011.10 ppb
2016-08-10330284012.00 ppb
2016-08-10330283011.20 ppb
2016-08-10330282011.000 ppb
2016-08-10330281012.50 ppb
2016-08-29333466011.80 ppb
2016-11-15338288011.10 ppb
2016-11-15338287011.40 ppb
2016-11-15338286011.000 ppb
2016-11-16338289010.900 ppb
2017-02-13346357010.700 ppb
2017-02-13346356010.700 ppb
2017-02-13346355010.700 ppb
2017-02-13346354010.700 ppb
2017-05-09354221010.500 ppb
2017-05-09354219010.600 ppb
2017-05-09354217010.600 ppb
2017-05-0935421501ND
2017-08-15366698011.40 ppb
2017-08-15366697011.40 ppb
2017-08-15366699011.30 ppb
2017-08-15366700011.30 ppb
2017-11-1537672601ND
2017-11-1537672501ND
2017-11-1537672401ND
2017-11-15376723010.500 ppb
2018-02-14385994010.600 ppb
2018-02-14385993010.500 ppb
2018-02-1438599201ND
2018-02-1438599101ND
2018-05-1039354701ND
2018-05-1039354801ND
2018-05-1039355001ND
2018-05-1039354901ND
2018-08-13406887010.900 ppb
2018-08-13406886011.10 ppb
2018-08-27412087011.20 ppb
2018-08-27411665011.50 ppb
2018-11-13418969010.700 ppb
2018-11-13418968010.800 ppb
2018-11-13418967010.700 ppb
2018-11-13418966010.800 ppb
2019-02-11429528010.600 ppb
2019-02-11429527010.600 ppb
2019-02-1142952901ND
2019-02-11429530010.500 ppb
2019-05-15440677010.800 ppb
2019-05-15440676010.700 ppb
2019-05-15440675010.700 ppb
2019-05-15440674010.800 ppb
2019-08-14455680011.30 ppb
2019-08-14455675011.40 ppb
2019-08-14455674011.30 ppb
2019-08-14455673011.20 ppb
2019-11-13472786010.700 ppb
2019-11-13472791010.800 ppb
2019-11-13472788010.600 ppb
2019-11-13472787011.000 ppb