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EWG's Tap Water Database — 2021 UPDATE

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Bromoform

Wvawc Bluestone Plant

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

 

97

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
2018ND170ND
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
2014-02-1724803301ND
2014-02-1724803201ND
2014-02-1724803101ND
2014-02-1724803001ND
2014-05-1225626101ND
2014-05-1225626001ND
2014-05-1225625901ND
2014-05-1225625801ND
2014-08-1326787101ND
2014-08-1326787001ND
2014-08-1326787201ND
2014-08-1326787301ND
2014-11-1027480501ND
2014-11-1027480401ND
2014-11-1027480301ND
2014-11-1027480201ND
2015-02-0928122601ND
2015-02-0928122501ND
2015-02-0928122401ND
2015-02-0928122301ND
2015-05-1928878801ND
2015-05-1928878901ND
2015-05-1928879101ND
2015-05-1928879001ND
2015-08-1829919001ND
2015-08-1829918901ND
2015-08-1829918801ND
2015-08-1829918701ND
2015-11-0930527601ND
2015-11-0930527501ND
2015-11-0930527401ND
2015-11-0930527301ND
2016-02-1831174101ND
2016-02-1831174001ND
2016-02-1831174201ND
2016-02-1831174301ND
2016-05-1031902301ND
2016-05-1031902201ND
2016-05-1031902101ND
2016-05-1031902001ND
2016-08-1133027701ND
2016-08-1133027601ND
2016-08-1133027501ND
2016-08-1133027401ND
2016-11-1533828101ND
2016-11-1533828001ND
2016-11-1533827901ND
2016-11-1533827801ND
2017-02-1634634901ND
2017-02-1634634801ND
2017-02-1634634701ND
2017-02-1634634601ND
2017-05-1535420501ND
2017-05-1535420301ND
2017-05-1535420101ND
2017-05-1535419901ND
2017-08-1436669201ND
2017-08-1436669101ND
2017-08-1436669001ND
2017-08-1436668901ND
2017-11-1337671701ND
2017-11-1337671501ND
2017-11-1337671601ND
2017-11-1337671801ND
2018-02-1438598601ND
2018-02-1438598501ND
2018-02-1438598401ND
2018-02-1438598301ND
2018-05-1639354201ND
2018-05-1639354101ND
2018-05-1639354001ND
2018-05-1639353901ND
2018-08-0940688101ND
2018-08-0940687801ND
2018-08-0940687901ND
2018-08-0940688001ND
2018-11-0641896201ND
2018-11-0641896101ND
2018-11-0641896001ND
2018-11-0641895901ND
2018-11-2042403101ND
2019-02-1442951901ND
2019-02-1442952001ND
2019-02-1442952101ND
2019-02-1442952201ND
2019-05-1844818201ND
2019-05-1844818101ND
2019-05-1844817901ND
2019-05-1844817801ND
2019-08-1345566501ND
2019-08-1345566401ND
2019-08-1345566301ND
2019-08-1345566201ND
2019-11-1847277801ND
2019-11-1847277901ND
2019-11-1847278001ND
2019-11-1847277701ND