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EWG's Tap Water Database — 2021 UPDATE

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Bromoform

Kearns Improvement District

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

 

141

Samples

0

Samples exceeding legal limit (MCL)

63

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20140.742 ppb1611ND - 1.82 ppb
20150.511 ppb82ND - 2.69 ppb
20160.689 ppb2510ND - 6.61 ppb
20170.167 ppb326ND - 1.70 ppb
20180.792 ppb2413ND - 2.92 ppb
20190.799 ppb3622ND - 5.91 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
2014-02-120.762 ppb
2014-02-12ND
2014-02-12ND
2014-02-120.889 ppb
2014-05-140.855 ppb
2014-05-140.775 ppb
2014-05-140.735 ppb
2014-05-140.952 ppb
2014-08-13ND
2014-08-13ND
2014-08-131.18 ppb
2014-08-13ND
2014-11-121.82 ppb
2014-11-121.15 ppb
2014-11-121.30 ppb
2014-11-121.45 ppb
2015-08-12ND
2015-08-12ND
2015-08-122.69 ppb
2015-08-12ND
2015-11-121.40 ppb
2015-11-12ND
2015-11-12ND
2015-11-12ND
2016-02-170.600 ppb
2016-02-17ND
2016-02-17ND
2016-02-170.600 ppb
2016-05-18ND
2016-05-18ND
2016-05-18ND
2016-05-18ND
2016-06-14ND
2016-06-14ND
2016-06-14ND
2016-06-141.20 ppb
2016-06-14ND
2016-08-16ND
2016-08-16ND
2016-08-166.61 ppb
2016-08-16ND
2016-11-16ND
2016-11-160.940 ppb
2016-11-161.03 ppb
2016-11-161.90 ppb
2016-11-161.01 ppb
2016-11-161.90 ppb
2016-11-16ND
2016-11-161.43 ppb
2017-02-15ND
2017-02-150.530 ppb
2017-02-15ND
2017-02-150.520 ppb
2017-02-15ND
2017-02-15ND
2017-02-150.530 ppb
2017-02-15ND
2017-05-17ND
2017-05-17ND
2017-05-171.55 ppb
2017-05-17ND
2017-05-17ND
2017-05-17ND
2017-05-17ND
2017-05-171.70 ppb
2017-06-07ND
2017-08-15ND
2017-08-15ND
2017-08-15ND
2017-08-15ND
2017-08-15ND
2017-08-15ND
2017-08-15ND
2017-11-14ND
2017-11-14ND
2017-11-14ND
2017-11-14ND
2017-11-140.500 ppb
2017-11-14ND
2017-11-14ND
2017-11-14ND
2018-05-100.670 ppb
2018-05-10ND
2018-05-10ND
2018-05-101.87 ppb
2018-05-100.810 ppb
2018-05-10ND
2018-05-10ND
2018-05-10ND
2018-08-15ND
2018-08-15ND
2018-08-15ND
2018-08-150.750 ppb
2018-08-152.92 ppb
2018-08-15ND
2018-08-15ND
2018-08-15ND
2018-11-082.19 ppb
2018-11-080.610 ppb
2018-11-080.610 ppb
2018-11-082.72 ppb
2018-11-081.02 ppb
2018-11-081.98 ppb
2018-11-081.91 ppb
2018-11-080.950 ppb
2019-02-120.670 ppb
2019-02-12ND
2019-02-125.91 ppb
2019-02-121.03 ppb
2019-02-120.530 ppb
2019-02-120.740 ppb
2019-02-121.88 ppb
2019-02-120.690 ppb
2019-05-141.07 ppb
2019-05-14ND
2019-05-141.06 ppb
2019-05-140.570 ppb
2019-05-140.830 ppb
2019-05-140.790 ppb
2019-05-140.850 ppb
2019-05-14ND
2019-06-11ND
2019-06-11ND
2019-06-11ND
2019-06-114.00 ppb
2019-08-14ND
2019-08-14ND
2019-08-14ND
2019-08-14ND
2019-08-141.97 ppb
2019-08-14ND
2019-08-14ND
2019-08-14ND
2019-11-130.730 ppb
2019-11-13ND
2019-11-130.760 ppb
2019-11-131.31 ppb
2019-11-130.790 ppb
2019-11-130.560 ppb
2019-11-131.22 ppb
2019-11-130.800 ppb