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EWG's Tap Water Database — 2021 UPDATE

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Bromoform

Wood River

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

 

96

Samples

0

Samples exceeding legal limit (MCL)

60

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20140.465 ppb1612ND - 0.772 ppb
20151.26 ppb1612ND - 4.46 ppb
20160.468 ppb1611ND - 0.889 ppb
20171.10 ppb1613ND - 2.80 ppb
20180.427 ppb168ND - 1.57 ppb
20190.148 ppb164ND - 0.679 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
2014-01-084010718-010.504 ppb
2014-01-084010718-020.563 ppb
2014-01-084010718-030.584 ppb
2014-01-084010718-040.618 ppb
2014-04-084041526-010.745 ppb
2014-04-084041526-020.762 ppb
2014-04-084041526-030.772 ppb
2014-04-084041526-040.765 ppb
2014-07-224073546-01ND
2014-07-224073546-02ND
2014-07-224073546-03ND
2014-07-224073546-04ND
2014-10-084101629-030.517 ppb
2014-10-084101629-040.529 ppb
2014-10-084101629-020.556 ppb
2014-10-084101629-010.535 ppb
2015-01-195012511-010.683 ppb
2015-01-195012511-040.715 ppb
2015-01-195012511-020.669 ppb
2015-01-195012511-030.702 ppb
2015-04-085041452-013.16 ppb
2015-04-085041452-044.46 ppb
2015-04-085041452-033.16 ppb
2015-04-085041452-024.45 ppb
2015-07-215073643-02ND
2015-07-215073643-03ND
2015-07-215073643-01ND
2015-07-215073643-04ND
2015-10-145102363-020.544 ppb
2015-10-145102363-030.547 ppb
2015-10-145102363-010.576 ppb
2015-10-145102363-040.521 ppb
2016-01-066010884-04ND
2016-01-066010884-03ND
2016-01-066010884-02ND
2016-01-066010884-01ND
2016-04-206043384-020.697 ppb
2016-04-206043384-040.889 ppb
2016-04-206043384-010.817 ppb
2016-04-206043384-030.736 ppb
2016-07-126072217-040.526 ppb
2016-07-126072217-010.631 ppb
2016-07-126072217-02ND
2016-07-126072217-030.655 ppb
2016-10-186102987-010.660 ppb
2016-10-186102987-040.627 ppb
2016-10-186102987-020.561 ppb
2016-10-186102987-030.682 ppb
2017-01-117011796-011.25 ppb
2017-01-117011796-041.05 ppb
2017-01-117011796-031.05 ppb
2017-01-117011796-020.511 ppb
2017-04-107041582-03ND
2017-04-107041582-040.624 ppb
2017-04-107041582-010.589 ppb
2017-04-107041582-02ND
2017-07-247074951-02ND
2017-07-247074951-040.510 ppb
2017-07-247074951-010.563 ppb
2017-07-247074951-030.561 ppb
2017-10-187103465-012.80 ppb
2017-10-187103465-032.69 ppb
2017-10-187103465-022.73 ppb
2017-10-187103465-042.74 ppb
2018-01-228013417-04ND
2018-01-228013417-03ND
2018-01-228013417-02ND
2018-01-228013417-01ND
2018-04-248044394-04ND
2018-04-248044394-01ND
2018-04-248044394-02ND
2018-04-248044394-03ND
2018-07-258074923-040.521 ppb
2018-07-258074923-030.545 ppb
2018-07-258074923-020.529 ppb
2018-07-258074923-010.649 ppb
2018-10-178103701-011.57 ppb
2018-10-178103701-020.904 ppb
2018-10-178103701-031.20 ppb
2018-10-178103701-040.907 ppb
2019-01-159012774-010.521 ppb
2019-01-159012774-02ND
2019-01-159012774-030.553 ppb
2019-01-159012774-04ND
2019-04-239045012-01ND
2019-04-239045012-04ND
2019-04-239045012-03ND
2019-04-239045012-02ND
2019-07-249075164-02ND
2019-07-249075164-04ND
2019-07-249075164-03ND
2019-07-249075164-01ND
2019-10-219104380-04ND
2019-10-219104380-030.607 ppb
2019-10-219104380-02ND
2019-10-219104380-010.679 ppb