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EWG's Tap Water Database — 2021 UPDATE

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Bromoform

City of Southlake

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)

16

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20140.700 ppb167ND - 2.00 ppb
2015ND160ND
2016ND160ND
20170.293 ppb163ND - 2.30 ppb
20180.218 ppb163ND - 1.30 ppb
20190.218 ppb163ND - 1.19 ppb

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
2014-02-17Q1404980004ND
2014-02-17Q1404980003ND
2014-02-17Q1404980002ND
2014-02-17Q1404980001ND
2014-04-01Q14104460032.00 ppb
2014-04-01Q14104460041.90 ppb
2014-04-01Q14104460021.90 ppb
2014-04-01Q14104460012.00 ppb
2014-07-07Q1426172001ND
2014-07-07Q14261720041.20 ppb
2014-07-24Q1430621002ND
2014-07-24Q1430621001ND
2014-10-06Q1450907004ND
2014-10-06Q14509070031.20 ppb
2014-10-06Q14509070021.000 ppb
2014-10-06Q1450907001ND
2015-01-20Q1501773004ND
2015-01-20Q1501773003ND
2015-01-20Q1501773002ND
2015-01-20Q1501773001ND
2015-04-06Q1512694001ND
2015-04-06Q1512694002ND
2015-04-06Q1512694004ND
2015-04-06Q1512694003ND
2015-07-09Q1526393004ND
2015-07-09Q1526393003ND
2015-07-09Q1526393002ND
2015-07-09Q1526393001ND
2015-10-13Q1540358003ND
2015-10-13Q1540358002ND
2015-10-13Q1540358001ND
2015-10-13Q1540358004ND
2016-01-28Q1604081002ND
2016-01-28Q1604081001ND
2016-01-28Q1604081003ND
2016-01-28Q1604081004ND
2016-04-18Q1615462001ND
2016-04-18Q1615462004ND
2016-04-18Q1615462003ND
2016-04-18Q1615462002ND
2016-07-14Q1628638004ND
2016-07-14Q1628638003ND
2016-07-14Q1628638002ND
2016-07-14Q1628638001ND
2016-10-26Q1645716001ND
2016-10-26Q1645716003ND
2016-10-26Q1645716002ND
2016-10-26Q1645716004ND
2017-01-03Q1700130003ND
2017-01-03Q1700130005ND
2017-01-03Q1700130002ND
2017-01-03Q1700130004ND
2017-04-04Q1714107004ND
2017-04-04Q1714107002ND
2017-04-04Q1714107001ND
2017-04-04Q1714107003ND
2017-07-11Q1728071001ND
2017-07-11Q1728071003ND
2017-07-11Q1728071004ND
2017-07-11Q1728071002ND
2017-10-02Q1747940003ND
2017-10-02Q17479400021.16 ppb
2017-10-02Q17479400012.30 ppb
2017-10-02Q17479400041.22 ppb
2018-01-11Q1801595005ND
2018-01-11Q1801595004ND
2018-01-11Q1801595003ND
2018-01-11Q18015950021.10 ppb
2018-04-05Q1814142003ND
2018-04-05Q1814142001ND
2018-04-05Q1814142002ND
2018-04-05Q1814142004ND
2018-07-02Q1826218001ND
2018-07-02Q1826218004ND
2018-07-02Q1826218003ND
2018-07-02Q1826218002ND
2018-10-01Q1839290003ND
2018-10-01Q18392900021.09 ppb
2018-10-01Q1839290004ND
2018-10-01Q18392900011.30 ppb
2019-02-13Q1906586003ND
2019-02-13Q1906586002ND
2019-02-13Q1906586004ND
2019-02-13Q1906586005ND
2019-04-11Q1914728004ND
2019-04-11Q1914728003ND
2019-04-11Q1914728002ND
2019-04-11Q1914728001ND
2019-07-23Q19468490041.16 ppb
2019-07-23Q1946849003ND
2019-07-23Q19468490021.19 ppb
2019-07-23Q19468490011.13 ppb
2019-11-21Q1977739001ND
2019-11-21Q1977739004ND
2019-11-21Q1977739003ND
2019-11-21Q1977739002ND