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EWG's Tap Water Database — 2019 UPDATE

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Bromoform

St. Louis City

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.

 

77

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012ND260ND
2013ND140ND
2014ND140ND
2015ND140ND
2016ND90ND
2017N/A00N/A

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
2012-03-06AB68529ND
2012-03-06AB68540ND
2012-03-06AB68539ND
2012-03-06AB68538ND
2012-03-06AB68537ND
2012-03-06AB68536ND
2012-03-06AB68535ND
2012-03-06AB68534ND
2012-03-06AB68533ND
2012-03-06AB68532ND
2012-03-06AB68531ND
2012-03-06AB68530ND
2012-06-11AB76349ND
2012-06-11AB76350ND
2012-06-11AB76351ND
2012-06-11AB76352ND
2012-06-11AB76353ND
2012-06-11AB76348ND
2012-06-11AB76347ND
2012-06-11AB76346ND
2012-06-11AB76345ND
2012-06-11AB76344ND
2012-06-11AB76343ND
2012-06-11AB76342ND
2012-06-28HBCB062812M524ND
2012-06-28CRCW062812M524ND
2013-06-11AC02448ND
2013-06-11AC02447ND
2013-06-11AC02446ND
2013-06-11AC02445ND
2013-06-11AC02444ND
2013-06-11AC02443ND
2013-06-11AC02442ND
2013-06-11AC02441ND
2013-06-11AC02440ND
2013-06-11AC02439ND
2013-06-11AC02438ND
2013-06-11AC02437ND
2013-10-22HBCB102213M524ND
2013-10-22CRCW102213M524ND
2014-05-28AC26130ND
2014-05-28AC26129ND
2014-05-28AC26128ND
2014-05-28AC26127ND
2014-05-28AC26126ND
2014-05-28AC26125ND
2014-05-28AC26124ND
2014-05-28AC26123ND
2014-05-28AC26114ND
2014-05-28AC26115ND
2014-05-28AC26119ND
2014-05-28AC26120ND
2014-05-28AC26121ND
2014-05-28AC26122ND
2015-03-17AC44659ND
2015-03-17AC44649ND
2015-03-17AC44650ND
2015-03-17AC44651ND
2015-03-17AC44657ND
2015-03-17AC44648ND
2015-03-17AC44652ND
2015-03-17AC44658ND
2015-03-17AC44656ND
2015-03-17AC44655ND
2015-03-17AC44654ND
2015-03-17AC44653ND
2015-06-01AC47390ND
2015-06-01AC47391ND
2016-03-08AC68837ND
2016-03-08AC68839ND
2016-03-08AC68840ND
2016-03-08AC68841ND
2016-03-08AC68838ND
2016-03-08AC68842ND
2016-06-06AC75867ND
2016-06-06AC75866ND
2016-06-06AC77510ND