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EWG's Tap Water Database — 2021 UPDATE

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Bromoform

City of Bonham

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)

2

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013N/A00N/A
20141.84 ppb162ND - 25.1 ppb
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
2014-02-11Q1404051005ND
2014-02-11Q1404051004ND
2014-02-11Q1404051003ND
2014-02-11Q1404051002ND
2014-04-22Q1412764004ND
2014-04-22Q14127640034.40 ppb
2014-04-22Q141276400125.1 ppb
2014-04-22Q1412764002ND
2014-07-09Q1427044002ND
2014-07-09Q1427044001ND
2014-07-09Q1427044003ND
2014-07-09Q1427044004ND
2014-11-18Q1456456001ND
2014-11-18Q1456456004ND
2014-11-18Q1456456003ND
2014-11-18Q1456456002ND
2015-01-20Q1501748004ND
2015-01-20Q1501748003ND
2015-01-20Q1501748002ND
2015-01-20Q1501748001ND
2015-05-06Q1516709001ND
2015-05-06Q1516709002ND
2015-05-06Q1516709004ND
2015-05-06Q1516709003ND
2015-09-02Q1533997001ND
2015-09-02Q1533997004ND
2015-09-02Q1533997003ND
2015-09-02Q1533997002ND
2015-10-14Q1540677004ND
2015-10-14Q1540677003ND
2015-10-14Q1540677002ND
2015-10-14Q1540677001ND
2016-01-26Q1603425002ND
2016-01-26Q1603425001ND
2016-01-26Q1603425003ND
2016-01-26Q1603425004ND
2016-04-28Q1616859004ND
2016-04-28Q1616859003ND
2016-04-28Q1616859002ND
2016-04-28Q1616859001ND
2016-07-27Q1630658004ND
2016-07-27Q1630658003ND
2016-07-27Q1630658002ND
2016-07-27Q1630658001ND
2016-10-27Q1646092001ND
2016-10-27Q1646092004ND
2016-10-27Q1646092003ND
2016-10-27Q1646092002ND
2017-01-25Q1703430003ND
2017-01-25Q1703430005ND
2017-01-25Q1703430002ND
2017-01-25Q1703430004ND
2017-05-03Q1718427004ND
2017-05-03Q1718427003ND
2017-05-03Q1718427002ND
2017-05-03Q1718427001ND
2017-08-07Q1732972002ND
2017-08-07Q1732972001ND
2017-08-07Q1732972003ND
2017-08-07Q1732972004ND
2017-10-26Q1755292003ND
2017-10-26Q1755292001ND
2017-10-26Q1755292002ND
2017-10-26Q1755292004ND
2018-02-06Q1804972005ND
2018-02-06Q1804972004ND
2018-02-06Q1804972003ND
2018-02-06Q1804972002ND
2018-05-04Q1818257001ND
2018-05-04Q1818257003ND
2018-05-04Q1818257004ND
2018-05-04Q1818257002ND
2018-08-20Q1833197004ND
2018-08-20Q1833197002ND
2018-08-20Q1833197003ND
2018-08-20Q1833197001ND
2018-11-13Q1845668001ND
2018-11-13Q1845668002ND
2018-11-13Q1845668003ND
2018-11-13Q1845668004ND
2019-02-06Q1905539002ND
2019-02-06Q1905539004ND
2019-02-06Q1905539005ND
2019-02-06Q1905539003ND
2019-04-30Q1917141002ND
2019-04-30Q1917141001ND
2019-04-30Q1917141003ND
2019-04-30Q1917141004ND
2019-08-21Q1958093004ND
2019-08-21Q1958093003ND
2019-08-21Q1958093002ND
2019-08-21Q1958093001ND
2019-10-28Q1973852001ND
2019-10-28Q1973852004ND
2019-10-28Q1973852003ND
2019-10-28Q1973852002ND