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EWG's Tap Water Database — 2021 UPDATE

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Bromoform

MO American St. Joseph

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

 

26

Samples

0

Samples exceeding legal limit (MCL)

1

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013N/A00N/A
2014ND160ND
20150.600 ppb220.500 ppb - 0.700 ppb
2016ND20ND
2017ND20ND
2018ND20ND
2019ND20ND

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
2014-02-1824689101ND
2014-02-1824689201ND
2014-02-1824689401ND
2014-02-1824689001ND
2014-05-0725589001ND
2014-05-0725589101ND
2014-05-0725589301ND
2014-05-0725589501ND
2014-08-0526544601ND
2014-08-0526544801ND
2014-08-0526544901ND
2014-08-0526545101ND
2014-11-0427378501ND
2014-11-0427378801ND
2014-11-0427378601ND
2014-11-0427378301ND
2015-11-02306456010.700 ppb
2015-11-02306454010.500 ppb
2016-08-0233014801ND
2016-08-0233015001ND
2017-08-1036569601ND
2017-08-1036569801ND
2018-08-0840558301ND
2018-08-0840558101ND
2019-08-1445738501ND
2019-08-1445738601ND