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EWG's Tap Water Database — 2021 UPDATE

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Bromoform

Palatine

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

 

192

Samples

0

Samples exceeding legal limit (MCL)

28

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013N/A00N/A
20140.190 ppb3210ND - 0.682 ppb
20150.641 ppb3211ND - 3.39 ppb
20160.0665 ppb324ND - 0.560 ppb
2017ND320ND
20180.0344 ppb322ND - 0.561 ppb
20190.0158 ppb321ND - 0.507 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
2014-02-044020656-01ND
2014-02-044020656-02ND
2014-02-044020656-03ND
2014-02-044020656-04ND
2014-02-044020656-05ND
2014-02-044020656-06ND
2014-02-044020656-07ND
2014-02-044020656-08ND
2014-05-054051347-010.682 ppb
2014-05-054051347-020.580 ppb
2014-05-054051347-030.623 ppb
2014-05-054051347-040.648 ppb
2014-05-054051347-050.674 ppb
2014-05-054051347-060.625 ppb
2014-05-054051347-070.583 ppb
2014-05-054051347-080.619 ppb
2014-08-064081493-01ND
2014-08-064081493-02ND
2014-08-064081493-03ND
2014-08-064081493-04ND
2014-08-064081493-050.510 ppb
2014-08-064081493-06ND
2014-08-064081493-07ND
2014-08-064081493-080.543 ppb
2014-11-034111019-01ND
2014-11-034111019-02ND
2014-11-034111019-03ND
2014-11-034111019-04ND
2014-11-034111019-05ND
2014-11-034111019-06ND
2014-11-034111019-07ND
2014-11-034111019-08ND
2015-02-035020847-01ND
2015-02-035020847-02ND
2015-02-035020847-03ND
2015-02-035020847-04ND
2015-02-035020847-05ND
2015-02-035020847-06ND
2015-02-035020847-07ND
2015-02-035020847-08ND
2015-05-045051153-013.12 ppb
2015-05-045051153-02ND
2015-05-045051153-033.06 ppb
2015-05-045051153-04ND
2015-05-045051153-05ND
2015-05-045051153-063.39 ppb
2015-05-045051153-07ND
2015-05-045051153-083.35 ppb
2015-08-045081149-010.625 ppb
2015-08-045081149-021.50 ppb
2015-08-045081149-030.534 ppb
2015-08-045081149-041.47 ppb
2015-08-045081149-05ND
2015-08-045081149-061.46 ppb
2015-08-045081149-070.526 ppb
2015-08-045081149-081.48 ppb
2015-11-025111037-01ND
2015-11-025111037-02ND
2015-11-025111037-03ND
2015-11-025111037-04ND
2015-11-025111037-05ND
2015-11-025111037-06ND
2015-11-025111037-07ND
2015-11-025111037-08ND
2016-02-026020983-01ND
2016-02-026020983-02ND
2016-02-026020983-03ND
2016-02-026020983-04ND
2016-02-026020983-05ND
2016-02-026020983-06ND
2016-02-026020983-07ND
2016-02-026020983-08ND
2016-05-036050996-01ND
2016-05-036050996-02ND
2016-05-036050996-03ND
2016-05-036050996-04ND
2016-05-036050996-05ND
2016-05-036050996-06ND
2016-05-036050996-07ND
2016-05-036050996-08ND
2016-08-096082387-010.506 ppb
2016-08-096082387-02ND
2016-08-096082387-030.534 ppb
2016-08-096082387-04ND
2016-08-096082387-05ND
2016-08-096082387-06ND
2016-08-096082387-070.528 ppb
2016-08-096082387-080.560 ppb
2016-11-076111247-01ND
2016-11-076111247-02ND
2016-11-076111247-03ND
2016-11-076111247-04ND
2016-11-076111247-05ND
2016-11-076111247-06ND
2016-11-076111247-07ND
2016-11-076111247-08ND
2017-02-077021658-01ND
2017-02-077021658-02ND
2017-02-077021658-03ND
2017-02-077021658-04ND
2017-02-077021658-05ND
2017-02-077021658-06ND
2017-02-077021658-07ND
2017-02-077021658-08ND
2017-05-087051577-01ND
2017-05-087051577-02ND
2017-05-087051577-03ND
2017-05-087051577-04ND
2017-05-087051577-05ND
2017-05-087051577-06ND
2017-05-087051577-07ND
2017-05-087051577-08ND
2017-08-087081679-01ND
2017-08-087081679-02ND
2017-08-087081679-03ND
2017-08-087081679-04ND
2017-08-087081679-05ND
2017-08-087081679-06ND
2017-08-087081679-07ND
2017-08-087081679-08ND
2017-11-067110836-01ND
2017-11-067110836-02ND
2017-11-067110836-03ND
2017-11-067110836-04ND
2017-11-067110836-05ND
2017-11-067110836-06ND
2017-11-067110836-07ND
2017-11-067110836-08ND
2018-02-088021215-01ND
2018-02-088021215-02ND
2018-02-088021215-03ND
2018-02-088021215-04ND
2018-02-088021215-05ND
2018-02-088021215-06ND
2018-02-088021215-07ND
2018-02-088021215-08ND
2018-05-088051420-01ND
2018-05-088051420-02ND
2018-05-088051420-03ND
2018-05-088051420-04ND
2018-05-088051420-05ND
2018-05-088051420-06ND
2018-05-088051420-07ND
2018-05-088051420-08ND
2018-08-148082696-01ND
2018-08-148082696-02ND
2018-08-148082696-03ND
2018-08-148082696-040.561 ppb
2018-08-148082696-05ND
2018-08-148082696-060.541 ppb
2018-08-148082696-07ND
2018-08-148082696-08ND
2018-11-148112496-01ND
2018-11-148112496-02ND
2018-11-148112496-03ND
2018-11-148112496-04ND
2018-11-148112496-05ND
2018-11-148112496-06ND
2018-11-148112496-07ND
2018-11-148112496-08ND
2019-02-059020519-01ND
2019-02-059020519-02ND
2019-02-059020519-03ND
2019-02-059020519-04ND
2019-02-059020519-05ND
2019-02-059020519-06ND
2019-02-059020519-07ND
2019-02-059020519-08ND
2019-05-079051566-01ND
2019-05-079051566-02ND
2019-05-079051566-03ND
2019-05-079051566-04ND
2019-05-079051566-05ND
2019-05-079051566-06ND
2019-05-079051566-07ND
2019-05-079051566-080.507 ppb
2019-08-079081337-01ND
2019-08-079081337-02ND
2019-08-079081337-03ND
2019-08-079081337-04ND
2019-08-079081337-05ND
2019-08-079081337-06ND
2019-08-079081337-07ND
2019-08-079081337-08ND
2019-11-069110917-01ND
2019-11-069110917-02ND
2019-11-069110917-03ND
2019-11-069110917-04ND
2019-11-069110917-05ND
2019-11-069110917-06ND
2019-11-069110917-07ND
2019-11-069110917-08ND