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EWG's Tap Water Database — 2021 UPDATE

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Bromoform

City of White Oak

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)

3

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013N/A00N/A
20140.889 ppb92ND - 5.10 ppb
2015ND90ND
2016ND90ND
20170.186 ppb91ND - 1.67 ppb
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
2014-03-07Q1407783002ND
2014-03-07Q1407783001ND
2014-06-05Q1419732005ND
2014-06-05Q14197320042.90 ppb
2014-08-15Q1437376001ND
2014-08-15Q14373760025.10 ppb
2014-08-15Q1437376004ND
2014-10-08Q1451740002ND
2014-10-08Q1451740001ND
2015-02-04Q1504509006ND
2015-02-04Q1504509005ND
2015-04-14Q1513784001ND
2015-04-14Q1513784002ND
2015-07-24Q1529138004ND
2015-07-24Q1529138003ND
2015-07-24Q1529138001ND
2015-10-12Q1539871002ND
2015-10-12Q1539871001ND
2016-01-12Q1600936010ND
2016-01-12Q1600936009ND
2016-04-07Q1613930002ND
2016-04-07Q1613930001ND
2016-07-06Q1627133004ND
2016-07-06Q1627133003ND
2016-07-06Q1627133001ND
2016-10-06Q1642509001ND
2016-10-06Q1642509002ND
2017-01-18Q1702416006ND
2017-01-18Q1702416005ND
2017-04-11Q1714650002ND
2017-04-11Q1714650001ND
2017-07-07Q1727790001ND
2017-07-07Q1727790002ND
2017-09-12Q1742884002ND
2017-10-04Q1748894002ND
2017-10-04Q17488940011.67 ppb
2018-01-09Q1800844006ND
2018-01-09Q1800844005ND
2018-04-05Q1814313002ND
2018-04-05Q1814313001ND
2018-07-12Q1827705002ND
2018-07-12Q1827705001ND
2018-07-12Q1827705003ND
2018-10-10Q1840316002ND
2018-10-10Q1840316001ND
2019-02-13Q1906686010ND
2019-02-13Q1906686009ND
2019-04-23Q1916383001ND
2019-04-23Q1916383002ND
2019-07-16Q1945096004ND
2019-07-16Q1945096003ND
2019-07-16Q1945096001ND
2019-10-24Q1973687001ND
2019-10-24Q1973687002ND