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EWG's Tap Water Database — 2021 UPDATE

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Bromoform

City of Gladewater

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

 

54

Samples

0

Samples exceeding legal limit (MCL)

1

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20140.211 ppb91ND - 1.90 ppb
2015ND90ND
2016ND90ND
2017ND90ND
2018ND90ND
2019ND90ND

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
2014-03-07Q1407778002ND
2014-03-07Q1407778001ND
2014-06-05Q14197300051.90 ppb
2014-06-05Q1419730004ND
2014-08-15Q1437371002ND
2014-08-15Q1437371001ND
2014-08-15Q1437371004ND
2014-10-08Q1451736002ND
2014-10-08Q1451736001ND
2015-02-04Q1504507006ND
2015-02-04Q1504507005ND
2015-04-14Q1513782001ND
2015-04-14Q1513782002ND
2015-07-20Q1527774004ND
2015-07-20Q1527774003ND
2015-07-20Q1527774001ND
2015-10-12Q1539866002ND
2015-10-12Q1539866001ND
2016-01-12Q1600935010ND
2016-01-12Q1600935009ND
2016-04-07Q1613928003ND
2016-04-07Q1613928002ND
2016-08-01Q1631452005ND
2016-08-01Q1631452004ND
2016-08-01Q1631452002ND
2016-10-06Q1642507002ND
2016-10-06Q1642507003ND
2017-01-18Q1702415003ND
2017-01-18Q1702415002ND
2017-05-09Q1718843003ND
2017-05-09Q1718843002ND
2017-07-07Q1727789003ND
2017-07-07Q1727789001ND
2017-08-10Q1734514002ND
2017-10-04Q1748892003ND
2017-10-04Q1748892002ND
2018-01-09Q1800843006ND
2018-01-09Q1800843005ND
2018-04-05Q1814312002ND
2018-04-05Q1814312003ND
2018-07-12Q1827704002ND
2018-07-12Q1827704005ND
2018-07-12Q1827704003ND
2018-10-10Q1840315003ND
2018-10-10Q1840315001ND
2019-02-14Q1906941004ND
2019-02-14Q1906941010ND
2019-04-23Q1916380003ND
2019-04-23Q1916380001ND
2019-08-08Q1952472005ND
2019-08-08Q1952472004ND
2019-08-08Q1952472001ND
2019-10-24Q1973685002ND
2019-10-24Q1973685003ND