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EWG's Tap Water Database — 2021 UPDATE

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Bromoform

Paw Blue Mountain Division

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)

0

Samples exceeding
health guidelines

Testing results - average by year

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

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
2014-02-1124664201ND
2014-02-1124664001ND
2014-02-1124664301ND
2014-02-1124664101ND
2014-05-1225541901ND
2014-05-1225542101ND
2014-05-1225542201ND
2014-05-1225542001ND
2014-08-1226514301ND
2014-08-1226514501ND
2014-08-1226514401ND
2014-08-1226514801ND
2014-11-1027365501ND
2014-11-1027365601ND
2014-11-1027365801ND
2014-11-1027365401ND
2015-02-1112439069ND
2015-02-1112439063ND
2015-02-1112439057ND
2015-02-1112439075ND
2015-05-1112793410ND
2015-05-1112793404ND
2015-05-1112793398ND
2015-05-1112793416ND
2015-08-1013175447ND
2015-08-1013175435ND
2015-08-1013175441ND
2015-08-1013175429ND
2015-11-1013552867ND
2015-11-1013552879ND
2015-11-1013552873ND
2015-11-1013552861ND
2016-02-1013907950ND
2016-02-1013907962ND
2016-02-1013907944ND
2016-02-1013907956ND
2016-05-1014302223ND
2016-05-1014302217ND
2016-05-1014302229ND
2016-05-1014302235ND
2016-08-1014791106ND
2016-08-1014791100ND
2016-08-1014791112ND
2016-08-1014791118ND
2016-11-1015272789ND
2016-11-1015272783ND
2016-11-1015272795ND
2016-11-1015272777ND
2017-02-1315699844ND
2017-02-1315699832ND
2017-02-1315699826ND
2017-02-1315699838ND
2017-05-1016148231ND
2017-05-1016148219ND
2017-05-1016148213ND
2017-05-1016148225ND
2017-08-0916618244ND
2017-08-0916618256ND
2017-08-0916618238ND
2017-08-0916618250ND
2017-11-0917067624ND
2017-11-0917067636ND
2017-11-0917067618ND
2017-11-0917067630ND
2018-02-0938540101ND
2018-02-0938540001ND
2018-02-0938540201ND
2018-02-0938539601ND
2018-05-0939387101ND
2018-05-0939386701ND
2018-05-0939387201ND
2018-05-0939387301ND
2018-08-0940645701ND
2018-08-0940645501ND
2018-08-0940645601ND
2018-08-0940645101ND
2018-11-0941766001ND
2018-11-0941766101ND
2018-11-0941765801ND
2018-11-0941765901ND
2019-02-1342853801ND
2019-02-1342854001ND
2019-02-1342853901ND
2019-02-1342853701ND
2019-05-0944015701ND
2019-05-1044015901ND
2019-05-1044016001ND
2019-05-1044015801ND
2019-08-0945829601ND
2019-08-0945829901ND
2019-08-0945829801ND
2019-08-0945829701ND
2019-11-1147364701ND
2019-11-1147364601ND
2019-11-1147364401ND
2019-11-1247364501ND