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EWG's Tap Water Database — 2021 UPDATE

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Bromoform

Montclair Water Bureau

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

 

123

Samples

0

Samples exceeding legal limit (MCL)

19

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20140.423 ppb2712ND - 2.18 ppb
20150.217 ppb256ND - 1.87 ppb
2016ND160ND
2017ND180ND
2018ND190ND
20190.0961 ppb181ND - 1.73 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
2014-02-12AB00185ND
2014-02-12AB00186ND
2014-02-12AB00184ND
2014-02-12AB00183ND
2014-02-274020540-020.770 ppb
2014-05-13AB01627ND
2014-05-13AB01628ND
2014-05-13AB016262.18 ppb
2014-05-13AB01625ND
2014-06-204060637-041.51 ppb
2014-06-204060637-061.07 ppb
2014-06-204060637-021.02 ppb
2014-07-224070666-020.970 ppb
2014-08-12AB03641ND
2014-08-12AB03642ND
2014-08-12AB03640ND
2014-08-12AB03639ND
2014-09-1028750-40.680 ppb
2014-09-1028750-60.560 ppb
2014-09-1028750-20.640 ppb
2014-11-0429684-40.760 ppb
2014-11-0429684-60.520 ppb
2014-11-0429684-20.750 ppb
2014-11-13AB04959ND
2014-11-13AB04960ND
2014-11-13AB04958ND
2014-11-13AB04957ND
2015-02-11AB06649ND
2015-02-11AB06650ND
2015-02-11AB066481.000 ppb
2015-02-11AB06647ND
2015-03-0631544-20.560 ppb
2015-05-13AB08508ND
2015-05-13AB08509ND
2015-05-13AB08507ND
2015-05-13AB08506ND
2015-05-19DWS537-6ND
2015-05-19DWS537-20.510 ppb
2015-05-19DWS537-4ND
2015-07-21DWSC68-2ND
2015-07-29DWSC90-4ND
2015-07-29DWSC90-2ND
2015-08-12AB09910ND
2015-08-12AB09911ND
2015-08-12AB09909ND
2015-08-12AB09908ND
2015-11-06DWSC724-20.810 ppb
2015-11-06DWSC724-40.670 ppb
2015-11-12AB11594ND
2015-11-12AB11595ND
2015-11-12AB115931.87 ppb
2015-11-12AB11592ND
2016-02-10AB13574ND
2016-02-10AB13575ND
2016-02-10AB13573ND
2016-02-10AB13572ND
2016-05-11AB15232ND
2016-05-11AB15233ND
2016-05-11AB15231ND
2016-05-11AB15230ND
2016-08-12AB17374ND
2016-08-12AB17375ND
2016-08-12AB17373ND
2016-08-12AB17372ND
2016-11-16DWSC2409-4ND
2016-11-16DWSC2409-5ND
2016-11-16DWSC2409-3ND
2016-11-16DWSC2409-2ND
2017-02-15AB21153ND
2017-02-15AB21154ND
2017-02-15AB21152ND
2017-02-15AB21151ND
2017-05-16DWSC3172-4ND
2017-05-16DWSC3172-5ND
2017-05-16DWSC3172-3ND
2017-05-16DWSC3172-2ND
2017-08-14AB25727ND
2017-08-14AB25728ND
2017-08-14AB25726ND
2017-08-14AB25725ND
2017-08-28DWSC3790-2ND
2017-10-11DWSC4095-2ND
2017-11-15AB27876ND
2017-11-15AB27877ND
2017-11-15AB27875ND
2017-11-15AB27874ND
2018-02-13AB29934ND
2018-02-13AB29935ND
2018-02-13AB29933ND
2018-02-13AB29932ND
2018-05-15AB32041ND
2018-05-15AB32042ND
2018-05-15AB32040ND
2018-05-15AB32039ND
2018-06-07DWSC5477-6ND
2018-08-06AB34250ND
2018-08-06AB34251ND
2018-08-06AB34249ND
2018-08-06AB34248ND
2018-08-1618081706-01ND
2018-10-2518102615-02ND
2018-11-15AB36311ND
2018-11-15AB36312ND
2018-11-15AB36310ND
2018-11-15AB36309ND
2019-02-14AB38361ND
2019-02-14AB38362ND
2019-02-14AB38360ND
2019-02-14AB38359ND
2019-02-2719022804-02ND
2019-05-169051020-04ND
2019-05-169051020-05ND
2019-05-169051020-03ND
2019-05-169051020-02ND
2019-07-1819072203-002ND
2019-08-30AB43012ND
2019-08-30AB43013ND
2019-08-30AB430111.73 ppb
2019-08-30AB43010ND
2019-11-14AB45337ND
2019-11-14AB45338ND
2019-11-14AB45336ND
2019-11-14AB45335ND