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EWG's Tap Water Database — 2021 UPDATE

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Bromoform

Crawford

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

 

66

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND100ND
2015ND140ND
2016ND90ND
2017ND90ND
2018ND130ND
2019ND110ND

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
2014-03-03AI29004ND
2014-03-03AI29003ND
2014-04-30AI39283ND
2014-06-04AI42299ND
2014-06-04AI42298ND
2014-09-03AI52338ND
2014-09-03AI52337ND
2014-11-03AI58821ND
2014-12-01AI60456ND
2014-12-01AI60455ND
2015-01-27AI63563ND
2015-01-27AI63562ND
2015-03-09AI68589ND
2015-03-09AI68588ND
2015-04-27AI75660ND
2015-06-03AI78808ND
2015-06-03AI78807ND
2015-08-04AI85416ND
2015-08-04AI85415ND
2015-08-04AI85414ND
2015-09-02AI88655ND
2015-09-02AI88654ND
2015-11-30AJ01664ND
2015-11-30AJ01663ND
2016-03-02AJ07507ND
2016-03-02AJ07506ND
2016-04-12AJ09952ND
2016-06-08AJ13868ND
2016-06-08AJ13867ND
2016-09-06AJ25748ND
2016-09-06AJ25747ND
2016-12-06AJ36059ND
2016-12-06AJ36060ND
2017-03-07AJ47668ND
2017-03-07AJ47667ND
2017-06-07AJ57049ND
2017-06-07AJ57048ND
2017-06-07AJ57016ND
2017-09-06AJ67190ND
2017-09-06AJ67189ND
2017-12-06AJ74973ND
2017-12-06AJ74972ND
2018-03-07AJ85220ND
2018-03-07AJ85219ND
2018-05-08AJ89023ND
2018-05-08AJ89022ND
2018-06-05AJ90773ND
2018-06-05AJ90772ND
2018-06-25AJ92363ND
2018-06-25AJ92362ND
2018-09-05AJ99914ND
2018-09-05AJ99913ND
2018-11-05AK05285ND
2018-11-26AK06659ND
2018-11-26AK06658ND
2019-01-30AK10248ND
2019-01-30AK10247ND
2019-03-05AK12576ND
2019-03-05AK12575ND
2019-04-16AK15334ND
2019-06-03AK18628ND
2019-06-03AK18627ND
2019-09-04AK29223ND
2019-09-04AK29222ND
2019-12-02AK37399ND
2019-12-02AK37400ND