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EWG's Tap Water Database — 2021 UPDATE

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Bromoform

Houma Water Treatment Service Area

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

 

220

Samples

0

Samples exceeding legal limit (MCL)

28

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20140.230 ppb4012ND - 1.40 ppb
20150.0958 ppb486ND - 1.000 ppb
20160.178 ppb3610ND - 0.900 ppb
2017ND320ND
20180.0431 ppb322ND - 0.690 ppb
20190.0688 ppb322ND - 1.10 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
2014-02-122972618ND
2014-02-122972620ND
2014-02-122972622ND
2014-02-122972624ND
2014-02-122972618ND
2014-02-122972620ND
2014-02-122972622ND
2014-02-122972624ND
2014-02-24AD89295ND
2014-02-24AD89295ND
2014-05-133024718ND
2014-05-133024720ND
2014-05-1330247220.500 ppb
2014-05-1330247240.600 ppb
2014-05-133024718ND
2014-05-133024720ND
2014-05-1330247220.500 ppb
2014-05-1330247240.600 ppb
2014-08-133082516ND
2014-08-133082518ND
2014-08-133082520ND
2014-08-133082522ND
2014-08-133082516ND
2014-08-133082518ND
2014-08-133082520ND
2014-08-133082522ND
2014-09-0330963560.900 ppb
2014-09-0330963560.900 ppb
2014-10-0131152801.40 ppb
2014-10-0131152801.40 ppb
2014-11-1231380090.600 ppb
2014-11-123138011ND
2014-11-123138013ND
2014-11-1231380150.600 ppb
2014-11-1231380090.600 ppb
2014-11-123138011ND
2014-11-123138013ND
2014-11-1231380150.600 ppb
2014-12-033148942ND
2014-12-033148942ND
2015-01-0731659920.600 ppb
2015-01-0731659920.600 ppb
2015-02-113185730ND
2015-02-113185732ND
2015-02-113185734ND
2015-02-113185736ND
2015-02-113185730ND
2015-02-113185732ND
2015-02-113185734ND
2015-02-113185736ND
2015-03-0432001581.000 ppb
2015-03-0432001581.000 ppb
2015-04-013216733ND
2015-04-013216733ND
2015-05-143243066ND
2015-05-143243068ND
2015-05-143243070ND
2015-05-143243072ND
2015-05-143243066ND
2015-05-143243068ND
2015-05-143243070ND
2015-05-143243072ND
2015-06-033254594ND
2015-06-033254594ND
2015-07-0232725910.700 ppb
2015-07-0232725910.700 ppb
2015-08-173302664ND
2015-08-173302666ND
2015-08-173302668ND
2015-08-173302670ND
2015-08-173302664ND
2015-08-173302666ND
2015-08-173302668ND
2015-08-173302670ND
2015-09-023314541ND
2015-09-023314541ND
2015-10-053333439ND
2015-10-053333439ND
2015-11-113357308ND
2015-11-113357310ND
2015-11-113357312ND
2015-11-113357314ND
2015-11-113357308ND
2015-11-113357310ND
2015-11-113357312ND
2015-11-113357314ND
2015-12-023368081ND
2015-12-023368081ND
2016-01-073382998ND
2016-01-073382998ND
2016-02-113399259ND
2016-02-113399261ND
2016-02-113399263ND
2016-02-113399265ND
2016-02-113399259ND
2016-02-113399261ND
2016-02-113399263ND
2016-02-113399265ND
2016-03-023408802ND
2016-03-023408802ND
2016-05-103446007ND
2016-05-103446009ND
2016-05-103446011ND
2016-05-103446013ND
2016-05-103446007ND
2016-05-103446009ND
2016-05-103446011ND
2016-05-103446013ND
2016-08-1035183140.600 ppb
2016-08-1035183160.600 ppb
2016-08-1035183180.500 ppb
2016-08-1035183200.900 ppb
2016-08-1035183140.600 ppb
2016-08-1035183160.600 ppb
2016-08-1035183180.500 ppb
2016-08-1035183200.900 ppb
2016-11-093583795ND
2016-11-093583797ND
2016-11-093583799ND
2016-11-0935838010.600 ppb
2016-11-093583795ND
2016-11-093583797ND
2016-11-093583799ND
2016-11-0935838010.600 ppb
2017-02-0235292876005ND
2017-02-0235292876006ND
2017-02-0235292876007ND
2017-02-0235292876008ND
2017-02-0235292876005ND
2017-02-0235292876006ND
2017-02-0235292876007ND
2017-02-0235292876008ND
2017-05-0835311079005ND
2017-05-0835311079006ND
2017-05-0835311079007ND
2017-05-0835311079008ND
2017-05-0835311079005ND
2017-05-0835311079006ND
2017-05-0835311079007ND
2017-05-0835311079008ND
2017-08-0135327548005ND
2017-08-0135327548006ND
2017-08-0135327548007ND
2017-08-0135327548008ND
2017-08-0135327548005ND
2017-08-0135327548006ND
2017-08-0135327548007ND
2017-08-0135327548008ND
2017-11-0135345490001ND
2017-11-0135345490002ND
2017-11-0135345490003ND
2017-11-0135345490004ND
2017-11-0135345490001ND
2017-11-0135345490002ND
2017-11-0135345490003ND
2017-11-0135345490004ND
2018-02-0135371683001ND
2018-02-0135371683002ND
2018-02-01353716830030.690 ppb
2018-02-0135371683004ND
2018-02-0135371683001ND
2018-02-0135371683002ND
2018-02-01353716830030.690 ppb
2018-02-0135371683004ND
2018-05-0335390211001ND
2018-05-0335390211002ND
2018-05-0335390211003ND
2018-05-0335390211004ND
2018-05-0335390211001ND
2018-05-0335390211002ND
2018-05-0335390211003ND
2018-05-0335390211004ND
2018-08-0135408231001ND
2018-08-0135408231002ND
2018-08-0135408231003ND
2018-08-0135408231004ND
2018-08-0135408231001ND
2018-08-0135408231002ND
2018-08-0135408231003ND
2018-08-0135408231004ND
2018-11-0735430034001ND
2018-11-0735430034002ND
2018-11-0735430034003ND
2018-11-0735430034004ND
2018-11-0735430034001ND
2018-11-0735430034002ND
2018-11-0735430034003ND
2018-11-0735430034004ND
2019-02-0535446748001ND
2019-02-0535446748002ND
2019-02-0535446748003ND
2019-02-0535446748004ND
2019-02-0535446748001ND
2019-02-0535446748002ND
2019-02-0535446748003ND
2019-02-0535446748004ND
2019-05-0135465623001ND
2019-05-0135465623002ND
2019-05-0135465623003ND
2019-05-0135465623004ND
2019-05-0135465623001ND
2019-05-0135465623002ND
2019-05-0135465623003ND
2019-05-0135465623004ND
2019-08-0135487281001ND
2019-08-0135487281002ND
2019-08-01354872810031.10 ppb
2019-08-0135487281004ND
2019-08-0135487281001ND
2019-08-0135487281002ND
2019-08-01354872810031.10 ppb
2019-08-0135487281004ND
2019-11-0735510945001ND
2019-11-0735510945002ND
2019-11-0735510945003ND
2019-11-0735510945004ND
2019-11-0735510945001ND
2019-11-0735510945002ND
2019-11-0735510945003ND
2019-11-0735510945004ND