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EWG's Tap Water Database — 2021 UPDATE

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Bromoform

Pawc Watres

Bromoform, one of the total trihalomethanes (TTHMs), is formed when chlorine or other disinfectants are used to treat drinking water. Bromoform 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

 

192

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013N/A00N/A
2014ND320ND
2015ND320ND
2016ND320ND
2017ND320ND
2018ND320ND
2019ND320ND

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 0.5 ppb

The EWG Health Guideline of 0.5 ppb for bromoform 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
2014-01-0724403901ND
2014-01-0724403401ND
2014-01-0724403501ND
2014-01-0724403601ND
2014-01-0724403801ND
2014-01-0724404001ND
2014-01-0724403701ND
2014-01-0724404101ND
2014-04-0825332401ND
2014-04-0825331701ND
2014-04-0825332001ND
2014-04-0825332101ND
2014-04-0825332301ND
2014-04-0825332501ND
2014-04-0825332201ND
2014-04-0825332601ND
2014-07-1526749801ND
2014-07-1526749301ND
2014-07-1526749401ND
2014-07-1526749501ND
2014-07-1526749701ND
2014-07-1526749901ND
2014-07-1526749601ND
2014-07-1526750001ND
2014-10-0727096801ND
2014-10-0727096301ND
2014-10-0727096401ND
2014-10-0727096501ND
2014-10-0727096701ND
2014-10-0727096901ND
2014-10-0727096601ND
2014-10-0727097001ND
2015-01-0612300074ND
2015-01-0612300044ND
2015-01-0612300050ND
2015-01-0612300056ND
2015-01-0612300068ND
2015-01-0612300080ND
2015-01-0612300062ND
2015-01-0612300086ND
2015-04-0712645270ND
2015-04-0712645240ND
2015-04-0712645246ND
2015-04-0712645252ND
2015-04-0712645264ND
2015-04-0712645276ND
2015-04-0712645258ND
2015-04-0712645282ND
2015-07-0713025682ND
2015-07-0713025652ND
2015-07-0713025658ND
2015-07-0713025664ND
2015-07-0713025676ND
2015-07-0713025688ND
2015-07-0713025670ND
2015-07-0713025694ND
2015-10-0713401997ND
2015-10-0713401967ND
2015-10-0713401973ND
2015-10-0713401979ND
2015-10-0713401991ND
2015-10-0713402003ND
2015-10-0713401985ND
2015-10-0713402009ND
2016-01-0613766522ND
2016-01-0613766498ND
2016-01-0613766504ND
2016-01-0613766516ND
2016-01-0613766528ND
2016-01-0613766510ND
2016-01-0613766534ND
2016-01-0713766492ND
2016-04-0714119525ND
2016-04-0714119495ND
2016-04-0714119501ND
2016-04-0714119507ND
2016-04-0714119519ND
2016-04-0714119531ND
2016-04-0714119513ND
2016-04-0714119537ND
2016-07-0714587886ND
2016-07-0714587856ND
2016-07-0714587862ND
2016-07-0714587868ND
2016-07-0714587880ND
2016-07-0714587892ND
2016-07-0714587874ND
2016-07-0714587898ND
2016-10-1215092361ND
2016-10-1215092367ND
2016-10-1215092373ND
2016-10-1215092397ND
2016-10-1315092385ND
2016-10-1315092355ND
2016-10-1315092379ND
2016-10-1315092391ND
2017-01-1115532857ND
2017-01-1115532827ND
2017-01-1115532833ND
2017-01-1115532839ND
2017-01-1115532851ND
2017-01-1115532863ND
2017-01-1115532869ND
2017-01-1215532845ND
2017-04-1015954619ND
2017-04-1015954589ND
2017-04-1015954595ND
2017-04-1015954601ND
2017-04-1015954613ND
2017-04-1015954625ND
2017-04-1015954607ND
2017-04-1015954631ND
2017-07-1016429842ND
2017-07-1016429848ND
2017-07-1016429854ND
2017-07-1016429866ND
2017-07-1016429878ND
2017-07-1016429860ND
2017-07-1016429884ND
2017-07-1116429872ND
2017-10-1016896087ND
2017-10-1016896057ND
2017-10-1016896063ND
2017-10-1016896069ND
2017-10-1016896081ND
2017-10-1016896093ND
2017-10-1016896075ND
2017-10-1016896099ND
2018-01-0938156501ND
2018-01-0938156001ND
2018-01-0938156101ND
2018-01-0938156201ND
2018-01-0938156401ND
2018-01-0938156601ND
2018-01-0938156301ND
2018-01-0938156701ND
2018-04-1039067901ND
2018-04-1039067401ND
2018-04-1039067501ND
2018-04-1039067601ND
2018-04-1039067801ND
2018-04-1039068001ND
2018-04-1039067701ND
2018-04-1039068101ND
2018-07-0940198301ND
2018-07-0940198401ND
2018-07-0940198501ND
2018-07-0940198701ND
2018-07-0940198901ND
2018-07-0940198601ND
2018-07-0940199001ND
2018-07-1040198801ND
2018-10-0841306501ND
2018-10-0841306601ND
2018-10-0841306701ND
2018-10-0841306901ND
2018-10-0841307101ND
2018-10-0841306801ND
2018-10-0841307201ND
2018-10-0941225001ND
2019-01-0742494101ND
2019-01-0742493601ND
2019-01-0742493701ND
2019-01-0742493801ND
2019-01-0742494001ND
2019-01-0742494201ND
2019-01-0742493901ND
2019-01-0742494301ND
2019-04-0943654001ND
2019-04-0943654101ND
2019-04-0943654601ND
2019-04-0943654701ND
2019-04-0943654801ND
2019-04-0943654301ND
2019-04-0943654401ND
2019-04-0943654501ND
2019-07-0845010001ND
2019-07-0845010101ND
2019-07-0845010501ND
2019-07-0845010601ND
2019-07-0845010701ND
2019-07-0845010201ND
2019-07-0845010301ND
2019-07-0845010401ND
2019-10-0746914601ND
2019-10-0746914701ND
2019-10-0746914801ND
2019-10-0746914901ND
2019-10-0746915001ND
2019-10-0746915101ND
2019-10-0746915201ND
2019-10-0846914501ND