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EWG's Tap Water Database — 2021 UPDATE

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Bromoform

Menomonee Falls WW - Surface Water

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

 

62

Samples

0

Samples exceeding legal limit (MCL)

4

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND160ND
2015ND80ND
20160.0913 ppb82ND - 0.400 ppb
20170.619 ppb115ND - 2.10 ppb
20180.0890 ppb101ND - 0.890 ppb
2019ND90ND

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
2014-03-124093329002-2ND
2014-03-124093329001-2ND
2014-06-114097992002-2ND
2014-06-114097992001-2ND
2014-09-0840103147001-2ND
2014-09-0840103147002-2ND
2014-09-1040103150002-1ND
2014-09-1040103150-002ND
2014-09-1040103150004-1ND
2014-09-1040103150-004ND
2014-09-1040103150003-1ND
2014-09-1040103150-001ND
2014-09-1040103150001-1ND
2014-09-1040103150-003ND
2014-12-0840108168002-2ND
2014-12-0840108168001-2ND
2015-03-1040111470001-2ND
2015-03-1040111470002-2ND
2015-06-1040116375001-2ND
2015-06-1040116375002-2ND
2015-09-1040120924001-2ND
2015-09-1040120924002-2ND
2015-12-0940125888-002ND
2015-12-0940125888-001ND
2016-03-0940129215-002ND
2016-03-0940129215-001ND
2016-06-0940133609001-2ND
2016-06-0940133609002-2ND
2016-09-0840137989001-20.400 ppb
2016-09-0840137989002-20.330 ppb
2016-12-0640143090001-2ND
2016-12-0640143090002-2ND
2017-03-1440146773001-2ND
2017-03-1440146772001-2ND
2017-06-0840151375-001ND
2017-06-0840151377001-2ND
2017-08-2940155863001-12.10 ppb
2017-09-0710173570.320 ppb
2017-09-0710173580.390 ppb
2017-09-1240156616002-12.00 ppb
2017-09-1240156616001-12.00 ppb
2017-12-0740162100001-2ND
2017-12-0740162102001-2ND
2018-03-1340165845001-2ND
2018-03-1340165846001-2ND
2018-06-1240170815001-2ND
2018-06-1340170813001-2ND
2018-09-1140175632002-1ND
2018-09-1140175639001-2ND
2018-09-1140175641001-2ND
2018-09-1140175632001-10.890 ppb
2018-12-0540180572001-2ND
2018-12-0540180573001-2ND
2019-03-1340184157001-2ND
2019-03-1340184155001-2ND
2019-06-1140189299001-2ND
2019-06-1140189301001-2ND
2019-08-1340192953001ND
2019-09-1040194803001-2ND
2019-09-1040194800001-2ND
2019-12-0940200615001-2ND
2019-12-0940200613001-2ND