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EWG's Tap Water Database — 2021 UPDATE

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Bromoform

Woodstock

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

 

121

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND160ND
2015ND160ND
2016ND160ND
2017ND160ND
2018ND310ND
2019ND260ND

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
2014-01-13AI26272ND
2014-01-13AI26273ND
2014-01-13AI26274ND
2014-01-13AI26275ND
2014-04-08AI37268ND
2014-04-08AI37269ND
2014-04-08AI37270ND
2014-04-08AI37271ND
2014-07-10AI45423ND
2014-07-10AI45424ND
2014-07-10AI45425ND
2014-07-10AI45426ND
2014-10-06AI56673ND
2014-10-06AI56674ND
2014-10-06AI56675ND
2014-10-06AI56676ND
2015-01-22AI63252ND
2015-01-22AI63253ND
2015-01-22AI63254ND
2015-01-22AI63255ND
2015-04-09AI74500ND
2015-04-09AI74501ND
2015-04-09AI74502ND
2015-04-09AI74503ND
2015-07-08AI82074ND
2015-07-08AI82075ND
2015-07-08AI82076ND
2015-07-08AI82077ND
2015-10-26AI99750ND
2015-10-26AI99751ND
2015-10-26AI99752ND
2015-10-26AI99753ND
2016-01-12AJ03944ND
2016-01-12AJ03945ND
2016-01-12AJ03946ND
2016-01-12AJ03947ND
2016-04-12AJ09841ND
2016-04-12AJ09842ND
2016-04-12AJ09843ND
2016-04-12AJ09844ND
2016-07-12AJ17125ND
2016-07-12AJ17126ND
2016-07-12AJ17127ND
2016-07-12AJ17128ND
2016-10-10AJ30995ND
2016-10-10AJ30996ND
2016-10-10AJ30997ND
2016-10-10AJ30998ND
2017-01-11AJ37911ND
2017-01-11AJ37912ND
2017-01-11AJ37913ND
2017-01-11AJ37914ND
2017-04-10AJ52842ND
2017-04-10AJ52843ND
2017-04-10AJ52844ND
2017-04-10AJ52845ND
2017-07-12AJ59969ND
2017-07-12AJ59970ND
2017-07-12AJ59971ND
2017-07-12AJ59972ND
2017-10-12AJ71538ND
2017-10-12AJ71539ND
2017-10-12AJ71540ND
2017-10-12AJ71541ND
2018-01-09AJ76190ND
2018-01-09AJ76191ND
2018-01-09AJ76192ND
2018-01-09AJ76193ND
2018-04-09AJ86987ND
2018-04-09AJ86988ND
2018-04-09AJ86989ND
2018-04-09AJ86990ND
2018-04-10AJ87086ND
2018-04-10AJ87087ND
2018-04-10AJ87088ND
2018-04-10AJ87089ND
2018-04-10AJ87090ND
2018-07-09AJ93202ND
2018-07-09AJ93203ND
2018-07-09AJ93204ND
2018-07-09AJ93205ND
2018-07-10AJ93442ND
2018-07-10AJ93443ND
2018-07-10AJ93444ND
2018-07-10AJ93445ND
2018-07-10AJ93446ND
2018-12-18AK08329ND
2018-12-18AK08330ND
2018-12-18AK08331ND
2018-12-18AK08332ND
2018-12-18AK08333ND
2018-12-18AK08339ND
2018-12-18AK08340ND
2018-12-18AK08341ND
2018-12-18AK08342ND
2019-01-08AK09023ND
2019-01-08AK09024ND
2019-01-08AK09025ND
2019-01-08AK09026ND
2019-01-08AK09027ND
2019-01-08AK09028ND
2019-01-08AK09029ND
2019-01-08AK09030ND
2019-01-08AK09031ND
2019-04-08AK14701ND
2019-04-08AK14702ND
2019-04-08AK14703ND
2019-04-08AK14704ND
2019-04-15AK15169ND
2019-04-15AK15170ND
2019-04-15AK15171ND
2019-04-15AK15172ND
2019-04-15AK15173ND
2019-07-10AK21863ND
2019-07-10AK21864ND
2019-07-10AK21865ND
2019-07-10AK21866ND
2019-10-08AK34480ND
2019-10-08AK34481ND
2019-10-08AK34482ND
2019-10-08AK34483ND