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EWG's Tap Water Database — 2021 UPDATE

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Bromoform

City of Coppell

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)

19

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20142.30 ppb1614ND - 15.8 ppb
20150.275 ppb164ND - 1.20 ppb
2016ND160ND
2017ND160ND
2018ND160ND
20190.168 ppb161ND - 2.69 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
2014-02-18Q140513900415.8 ppb
2014-02-18Q14051390031.68 ppb
2014-02-18Q14051390021.56 ppb
2014-02-18Q14051390011.30 ppb
2014-06-03Q14188430051.50 ppb
2014-06-03Q14188430041.50 ppb
2014-06-03Q14188430031.70 ppb
2014-06-03Q14188430021.50 ppb
2014-07-03Q14259070022.20 ppb
2014-07-03Q14259070012.30 ppb
2014-07-03Q14259070032.20 ppb
2014-07-03Q14259070041.50 ppb
2014-10-22Q1453645004ND
2014-10-22Q14536450031.000 ppb
2014-10-22Q1453645002ND
2014-10-22Q14536450011.10 ppb
2015-01-16Q15021420031.20 ppb
2015-01-16Q15021420041.000 ppb
2015-01-16Q15021420021.000 ppb
2015-01-16Q15021420011.20 ppb
2015-04-06Q1512430003ND
2015-04-06Q1512430004ND
2015-04-06Q1512430001ND
2015-04-06Q1512430005ND
2015-08-17Q1532509004ND
2015-08-17Q1532509003ND
2015-08-17Q1532509002ND
2015-08-17Q1532509001ND
2015-10-08Q1539707004ND
2015-10-08Q1539707003ND
2015-10-08Q1539707002ND
2015-10-08Q1539707001ND
2016-01-12Q1600999002ND
2016-01-12Q1600999001ND
2016-01-12Q1600999003ND
2016-01-12Q1600999004ND
2016-04-06Q1613674004ND
2016-04-06Q1613674003ND
2016-04-06Q1613674002ND
2016-04-06Q1613674001ND
2016-07-07Q1627516004ND
2016-07-07Q1627516003ND
2016-07-07Q1627516002ND
2016-07-07Q1627516001ND
2016-10-21Q1645092001ND
2016-10-21Q1645092004ND
2016-10-21Q1645092002ND
2016-10-21Q1645092003ND
2017-01-10Q1700959005ND
2017-01-10Q1700959002ND
2017-01-10Q1700959004ND
2017-01-10Q1700959001ND
2017-04-04Q1713779002ND
2017-04-04Q1713779004ND
2017-04-04Q1713779001ND
2017-04-04Q1713779003ND
2017-07-05Q1727592002ND
2017-07-05Q1727592001ND
2017-07-05Q1727592004ND
2017-07-05Q1727592003ND
2017-10-16Q1753560003ND
2017-10-16Q1753560004ND
2017-10-16Q1753560001ND
2017-10-16Q1753560002ND
2018-01-25Q1803154005ND
2018-01-25Q1803154002ND
2018-01-25Q1803154004ND
2018-01-25Q1803154001ND
2018-05-24Q1820852001ND
2018-05-24Q1820852002ND
2018-05-24Q1820852004ND
2018-05-24Q1820852003ND
2018-08-27Q1834194004ND
2018-08-27Q1834194002ND
2018-08-27Q1834194003ND
2018-08-27Q1834194001ND
2018-11-28Q1848565004ND
2018-11-28Q1848565003ND
2018-11-28Q1848565002ND
2018-11-28Q1848565001ND
2019-01-23Q1903364003ND
2019-01-23Q1903364001ND
2019-01-23Q1903364002ND
2019-01-23Q1903364004ND
2019-04-16Q1915179005ND
2019-04-16Q1915179004ND
2019-04-16Q1915179003ND
2019-04-16Q1915179002ND
2019-07-30Q1948672004ND
2019-07-30Q1948672003ND
2019-07-30Q1948672002ND
2019-07-30Q1948672001ND
2019-10-02Q19706360012.69 ppb
2019-10-02Q1970636004ND
2019-10-02Q1970636003ND
2019-10-02Q1970636002ND