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EWG's Tap Water Database — 2019 UPDATE

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Bromoform

Oklahoma University

NOTE: Oklahoma University purchases water from Norman which is required to test for bromoform. Sample information shown below was taken by Norman.

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.

 

149

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012ND350ND
2013ND20ND
2014ND80ND
2015ND80ND
2016ND80ND
2017ND80ND

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

NOTE: Oklahoma University purchases water from Norman which is required to test for bromoform. Sample information shown below was taken by Norman.

Date Lab ID Result
2012-01-04513790ND
2012-01-04513791ND
2012-01-04513792ND
2012-01-04513793ND
2012-01-04513794ND
2012-01-04513795ND
2012-02-07514497ND
2012-02-07514498ND
2012-02-07514499ND
2012-02-07514500ND
2012-02-07514501ND
2012-02-07514502ND
2012-02-07514503ND
2012-02-07514504ND
2012-02-28515138ND
2012-02-28515139ND
2012-02-28515140ND
2012-02-28515142ND
2012-03-14515992ND
2012-03-14515993ND
2012-03-14515994ND
2012-03-14515995ND
2012-03-14515996ND
2012-03-14515997ND
2012-04-24517397ND
2012-04-25517398ND
2012-05-15518234ND
2012-05-15518236ND
2012-05-15518237ND
2012-05-15518238ND
2012-05-15518239ND
2012-05-15518240ND
2012-05-15518241ND
2012-05-15518242ND
2012-05-15518243ND
2015-02-041370212ND
2015-02-101371586ND
2015-02-101371588ND
2015-02-101371590ND
2015-02-101371592ND
2015-04-071384986ND
2015-04-071384987ND
2015-04-291391025ND
2015-05-041392518ND
2015-05-121394888ND
2015-05-121394890ND
2015-05-121394892ND
2015-05-121394894ND
2015-06-011399059ND
2015-06-011399061ND
2015-06-011399062ND
2015-06-011399063ND
2015-06-011399064ND
2015-06-011399065ND
2015-08-041416257ND
2015-08-111418111ND
2015-08-111418112ND
2015-08-111418113ND
2015-08-111418114ND
2015-10-131435404ND
2015-10-131435409ND
2015-10-191436493ND
2015-10-191436494ND
2015-10-191436495ND
2015-11-041441480ND
2015-11-051442398ND
2015-11-121443982ND
2015-11-121443984ND
2015-11-121443986ND
2015-11-121443988ND
2015-12-301454863ND
2016-01-191460005ND
2016-01-281462921ND
2016-02-091466169ND
2016-02-091466171ND
2016-02-091466172ND
2016-02-091466173ND
2016-03-011471232ND
2016-03-011471233ND
2016-04-051480969ND
2016-04-121482274ND
2016-05-101490236ND
2016-05-101490249ND
2016-05-101490251ND
2016-05-101490258ND
2016-05-101490260ND
2016-05-171492324ND
2016-06-021496446ND
2016-06-021496447ND
2016-06-021496448ND
2016-06-021496450ND
2016-07-071505618ND
2016-08-091515047ND
2016-08-091515049ND
2016-08-091515051ND
2016-08-091515053ND
2016-08-111515539ND
2016-08-111515540ND
2016-08-161516640ND
2016-09-211527005ND
2016-10-141533743ND
2016-10-141533744ND
2016-10-141533745ND
2016-11-071538947ND
2016-11-071539226ND
2016-11-071539233ND
2016-11-071539234ND
2016-11-071539235ND
2017-01-051553357ND
2017-02-071562348ND
2017-02-071562350ND
2017-02-071562352ND
2017-02-071562354ND
2017-02-211565871ND
2017-02-211565873ND
2017-04-111578804ND
2017-05-081586440ND
2017-05-081586441ND
2017-05-081586442ND
2017-05-081586443ND
2017-07-111603149ND
2017-07-111603150ND
2017-08-081612122ND
2017-08-081612124ND
2017-08-081612126ND
2017-08-081612128ND
2017-10-101629756ND
2017-10-101629757ND
2017-10-101629758ND
2017-10-101629759ND
2017-10-101629760ND
2017-10-251633238ND
2017-11-081637814ND
2017-11-081637816ND
2017-11-081637818ND
2017-11-081637820ND
2017-11-131638065ND
2017-11-131638067ND
2017-11-131638070ND
2017-11-131638071ND
2017-11-131638092ND
2017-12-041643074ND
2017-12-041643075ND
2017-12-041643076ND
2017-12-041643077ND
2017-12-041643078ND
2017-12-041643079ND
2017-12-041643080ND
2017-12-111645116ND