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EWG's Tap Water Database — 2021 UPDATE

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Bromoform

Dublin

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

 

104

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND170ND
2015ND180ND
2016ND170ND
2017ND170ND
2018ND180ND
2019ND170ND

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
2014-03-05AI29324ND
2014-03-05AI29325ND
2014-03-05AI29326ND
2014-03-05AI29327ND
2014-04-01AI36898ND
2014-06-05AI42393ND
2014-06-05AI42394ND
2014-06-05AI42395ND
2014-06-05AI42396ND
2014-09-04AI52476ND
2014-09-04AI52477ND
2014-09-04AI52478ND
2014-09-04AI52479ND
2014-12-03AI60550ND
2014-12-03AI60551ND
2014-12-03AI60552ND
2014-12-03AI60553ND
2015-03-05AI68457ND
2015-03-05AI68458ND
2015-03-05AI68459ND
2015-03-05AI68460ND
2015-03-19AI69468ND
2015-03-19AI69469ND
2015-06-04AI78921ND
2015-06-04AI78922ND
2015-06-04AI78923ND
2015-06-04AI78924ND
2015-09-03AI88768ND
2015-09-03AI88769ND
2015-09-03AI88770ND
2015-09-03AI88771ND
2015-12-03AJ01955ND
2015-12-03AJ01956ND
2015-12-03AJ01957ND
2015-12-03AJ01958ND
2016-03-03AJ07530ND
2016-03-03AJ07531ND
2016-03-03AJ07532ND
2016-03-03AJ07533ND
2016-03-28AJ08779ND
2016-06-01AJ13127ND
2016-06-01AJ13128ND
2016-06-01AJ13129ND
2016-06-01AJ13130ND
2016-09-08AJ26257ND
2016-09-08AJ26258ND
2016-09-08AJ26259ND
2016-09-08AJ26260ND
2016-12-07AJ36325ND
2016-12-07AJ36326ND
2016-12-07AJ36327ND
2016-12-07AJ36328ND
2017-03-02AJ47322ND
2017-03-02AJ47323ND
2017-03-02AJ47324ND
2017-03-02AJ47325ND
2017-06-01AJ56418ND
2017-06-01AJ56419ND
2017-06-01AJ56420ND
2017-06-01AJ56421ND
2017-06-05AJ56552ND
2017-09-06AJ67126ND
2017-09-06AJ67127ND
2017-09-06AJ67128ND
2017-09-06AJ67129ND
2017-12-05AJ74811ND
2017-12-05AJ74812ND
2017-12-05AJ74813ND
2017-12-05AJ74814ND
2018-03-07AJ85205ND
2018-03-07AJ85206ND
2018-03-07AJ85207ND
2018-03-07AJ85208ND
2018-04-24AJ87985ND
2018-04-24AJ87986ND
2018-06-26AJ92486ND
2018-06-26AJ92487ND
2018-06-26AJ92488ND
2018-06-26AJ92489ND
2018-09-05AJ99903ND
2018-09-05AJ99904ND
2018-09-05AJ99905ND
2018-09-05AJ99906ND
2018-11-29AK06911ND
2018-11-29AK06912ND
2018-11-29AK06913ND
2018-11-29AK06914ND
2019-03-05AK12569ND
2019-03-05AK12570ND
2019-03-05AK12571ND
2019-03-05AK12572ND
2019-05-28AK18311ND
2019-05-28AK18312ND
2019-05-28AK18313ND
2019-05-28AK18314ND
2019-05-29AK18437ND
2019-09-04AK29207ND
2019-09-04AK29208ND
2019-09-04AK29209ND
2019-09-04AK29210ND
2019-12-04AK37601ND
2019-12-04AK37602ND
2019-12-04AK37603ND
2019-12-04AK37604ND