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EWG's Tap Water Database — 2021 UPDATE

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Bromoform

Kaysville City Water System

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

 

48

Samples

0

Samples exceeding legal limit (MCL)

3

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND60ND
2015ND80ND
2016ND100ND
20170.0750 ppb81ND - 0.600 ppb
20180.275 ppb82ND - 1.40 ppb
20190.0625 ppb81ND - 0.500 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 Result
2014-01-14ND
2014-01-14ND
2014-01-14ND
2014-01-14ND
2014-04-07ND
2014-04-07ND
2015-01-07ND
2015-01-07ND
2015-04-07ND
2015-04-07ND
2015-07-07ND
2015-07-07ND
2015-10-06ND
2015-10-06ND
2016-01-04ND
2016-01-04ND
2016-04-05ND
2016-04-05ND
2016-07-06ND
2016-07-06ND
2016-09-14ND
2016-09-14ND
2016-12-02ND
2016-12-02ND
2017-03-06ND
2017-03-06ND
2017-06-06ND
2017-06-06ND
2017-09-07ND
2017-09-07ND
2017-12-05ND
2017-12-050.600 ppb
2018-03-010.800 ppb
2018-03-01ND
2018-06-21ND
2018-06-21ND
2018-09-11ND
2018-09-11ND
2018-12-041.40 ppb
2018-12-04ND
2019-03-06ND
2019-03-060.500 ppb
2019-06-05ND
2019-06-05ND
2019-10-02ND
2019-10-02ND
2019-12-10ND
2019-12-10ND