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EWG's Tap Water Database — 2021 UPDATE

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Bromoform

Cumming

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

 

102

Samples

0

Samples exceeding legal limit (MCL)

1

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND170ND
2015ND170ND
2016ND170ND
2017ND170ND
2018ND170ND
20190.224 ppb171ND - 3.80 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
2014-02-05AI27628ND
2014-02-05AI27629ND
2014-02-05AI27630ND
2014-02-05AI27631ND
2014-03-10AI29445ND
2014-05-06AI39667ND
2014-05-06AI39668ND
2014-05-06AI39669ND
2014-05-06AI39670ND
2014-08-11AI49162ND
2014-08-11AI49163ND
2014-08-11AI49164ND
2014-08-11AI49165ND
2014-11-11AI59370ND
2014-11-11AI59371ND
2014-11-11AI59372ND
2014-11-11AI59373ND
2015-02-03AI64154ND
2015-02-03AI64155ND
2015-02-03AI64156ND
2015-02-03AI64157ND
2015-03-10AI68602ND
2015-05-06AI76573ND
2015-05-06AI76574ND
2015-05-06AI76575ND
2015-05-06AI76576ND
2015-08-04AI85423ND
2015-08-04AI85424ND
2015-08-04AI85425ND
2015-08-04AI85426ND
2015-11-17AJ01236ND
2015-11-17AJ01237ND
2015-11-17AJ01238ND
2015-11-17AJ01239ND
2016-02-03AJ05653ND
2016-02-03AJ05654ND
2016-02-03AJ05655ND
2016-02-03AJ05656ND
2016-03-02AJ07399ND
2016-05-04AJ11471ND
2016-05-04AJ11472ND
2016-05-04AJ11473ND
2016-05-04AJ11474ND
2016-08-09AJ21996ND
2016-08-09AJ21997ND
2016-08-09AJ21998ND
2016-08-09AJ21999ND
2016-11-08AJ32991ND
2016-11-08AJ32992ND
2016-11-08AJ32993ND
2016-11-08AJ32994ND
2017-02-07AJ46002ND
2017-02-07AJ46003ND
2017-02-07AJ46004ND
2017-02-07AJ46005ND
2017-05-03AJ54700ND
2017-05-03AJ54701ND
2017-05-03AJ54702ND
2017-05-03AJ54703ND
2017-05-17AJ55604ND
2017-08-09AJ63680ND
2017-08-09AJ63681ND
2017-08-09AJ63682ND
2017-08-09AJ63683ND
2017-11-01AJ72822ND
2017-11-01AJ72823ND
2017-11-01AJ72824ND
2017-11-01AJ72825ND
2018-02-13AJ83863ND
2018-02-13AJ83864ND
2018-02-13AJ83865ND
2018-02-13AJ83866ND
2018-03-07AJ85042ND
2018-05-08AJ89092ND
2018-05-08AJ89093ND
2018-05-08AJ89094ND
2018-05-08AJ89095ND
2018-08-07AJ96876ND
2018-08-07AJ96877ND
2018-08-07AJ96878ND
2018-08-07AJ96879ND
2018-11-14AK06121ND
2018-11-14AK06122ND
2018-11-14AK06123ND
2018-11-14AK06124ND
2019-02-06AK10792ND
2019-02-06AK10793ND
2019-02-06AK10794ND
2019-02-06AK10795ND
2019-05-01AK16079ND
2019-05-07AK16776ND
2019-05-07AK16777ND
2019-05-07AK16778ND
2019-05-07AK16779ND
2019-08-13AK26018ND
2019-08-13AK26019ND
2019-08-13AK26020ND
2019-08-13AK26021ND
2019-11-06AK36310ND
2019-11-06AK36311ND
2019-11-06AK36312ND
2019-11-06AK363133.80 ppb