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EWG's Tap Water Database — 2021 UPDATE

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Bromoform

Rathbun Regional Water Assn

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

 

96

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
2014ND160ND
2015ND160ND
2016ND160ND
2017ND160ND
2018ND160ND
2019ND160ND

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
2014-01-082028336ND
2014-01-082028337ND
2014-01-082028338ND
2014-01-082028339ND
2014-04-022043712ND
2014-04-022043711ND
2014-04-022043709ND
2014-04-022043710ND
2014-07-082062156ND
2014-07-082062157ND
2014-07-082062158ND
2014-07-082062160ND
2014-10-082085405ND
2014-10-082085399ND
2014-10-082085109ND
2014-10-082085102ND
2015-01-13OE210144ND
2015-01-13OE210145ND
2015-01-13OE210146ND
2015-01-13OE210147ND
2015-04-06OE228572ND
2015-04-06OE228571ND
2015-04-06OE228573ND
2015-04-06OE228574ND
2015-07-06OE264416ND
2015-07-06OE264417ND
2015-07-06OE264419ND
2015-07-06OE264418ND
2015-10-06OE303498ND
2015-10-06OE303499ND
2015-10-06OE303500ND
2015-10-06OE303497ND
2016-01-12OE335724ND
2016-01-12OE335725ND
2016-01-12OE335726ND
2016-01-12OE335727ND
2016-04-05OE363082ND
2016-04-05OE363083ND
2016-04-05OE363080ND
2016-04-05OE363081ND
2016-07-07OE398606ND
2016-07-07OE398605ND
2016-07-07OE398607ND
2016-07-07OE398604ND
2016-10-05OE438010ND
2016-10-05OE438011ND
2016-10-05OE438009ND
2016-10-05OE438008ND
2017-01-18OE471871ND
2017-01-18OE471872ND
2017-01-18OE471873ND
2017-01-18OE471874ND
2017-04-11OE501305ND
2017-04-11OE501306ND
2017-04-11OE501304ND
2017-04-13OE502012ND
2017-07-11OE535201ND
2017-07-11OE535200ND
2017-07-11OE535198ND
2017-07-11OE535199ND
2017-10-10OE576458ND
2017-10-10OE576455ND
2017-10-10OE576457ND
2017-10-10OE576456ND
2018-01-10OE610215ND
2018-01-10OE610214ND
2018-01-10OE610213ND
2018-01-10OE610212ND
2018-04-04OE641483ND
2018-04-04OE641480ND
2018-04-04OE641481ND
2018-04-04OE641482ND
2018-07-10OE681605ND
2018-07-10OE681604ND
2018-07-10OE681603ND
2018-07-10OE681602ND
2018-10-15OE728235ND
2018-10-16OE728232ND
2018-10-16OE728233ND
2018-10-16OE728234ND
2019-01-07OE758089ND
2019-01-07OE758090ND
2019-01-08OE758091ND
2019-01-08OE758092ND
2019-04-03OE789664ND
2019-04-03OE789667ND
2019-04-03OE789666ND
2019-04-03OE789665ND
2019-07-15OE835026ND
2019-07-15OE835028ND
2019-07-15OE835027ND
2019-07-15OE835025ND
2019-10-07OE876328ND
2019-10-07OE876327ND
2019-10-07OE876326ND
2019-10-07OE876325ND