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EWG's Tap Water Database — 2021 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.

MORE ABOUT THIS CONTAMINANT

 

53

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
2014ND140ND
2015ND140ND
2016ND90ND
2017N/A00N/A
2018ND20ND
2019ND140ND

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
2014-05-28AC26130ND
2014-05-28AC26114ND
2014-05-28AC26129ND
2014-05-28AC26128ND
2014-05-28AC26127ND
2014-05-28AC26126ND
2014-05-28AC26125ND
2014-05-28AC26123ND
2014-05-28AC26115ND
2014-05-28AC26119ND
2014-05-28AC26120ND
2014-05-28AC26121ND
2014-05-28AC26122ND
2014-05-28AC26124ND
2015-03-17AC44658ND
2015-03-17AC44656ND
2015-03-17AC44655ND
2015-03-17AC44654ND
2015-03-17AC44653ND
2015-03-17AC44652ND
2015-03-17AC44648ND
2015-03-17AC44657ND
2015-03-17AC44651ND
2015-03-17AC44650ND
2015-03-17AC44649ND
2015-03-17AC44659ND
2015-06-01AC47390ND
2015-06-01AC47391ND
2016-03-08AC68842ND
2016-03-08AC68838ND
2016-03-08AC68841ND
2016-03-08AC68840ND
2016-03-08AC68839ND
2016-03-08AC68837ND
2016-06-06AC75867ND
2016-06-06AC75866ND
2016-06-06AC77510ND
2018-11-06CRCW110618M524ND
2018-11-06HBCB110618M524ND
2019-06-25CRD13062519ND
2019-06-25HBD15062519ND
2019-06-25HBD06062519ND
2019-06-25HBD03062519ND
2019-06-25CRD02062519ND
2019-06-26CRD10062619ND
2019-09-10CRD02091019ND
2019-09-10CRD10091019ND
2019-09-10CRD13091019ND
2019-09-10HBD15091019ND
2019-09-11HBD03091119ND
2019-09-11HBD06091119ND
2019-11-18CRCW111819M524ND
2019-11-18HBCB111819M524ND