Menu

EWG's Tap Water Database — 2021 UPDATE

Donate

Bromoform

Salem 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

 

92

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND160ND
2015ND160ND
2016ND160ND
2017ND160ND
2018ND160ND
2019ND120ND

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
2014-01-0714010000602ND
2014-01-0714010000502ND
2014-01-0914010003302ND
2014-01-0914010003202ND
2014-04-0114093005002ND
2014-04-0114093005202ND
2014-04-0114093005602ND
2014-04-0114093005102ND
2014-07-0214184003402ND
2014-07-0214184003502ND
2014-07-0214184003702ND
2014-07-0214184003602ND
2014-11-1714324006202ND
2014-11-1714324006002ND
2014-11-1714324006302ND
2014-11-1714324006102ND
2015-01-0515008014602ND
2015-01-0615008015302ND
2015-01-0615008015102ND
2015-01-0615008015202ND
2015-04-0715099009202ND
2015-04-0715099008902ND
2015-04-0715099008702ND
2015-04-0715099008802ND
2015-07-0715189001002ND
2015-07-0715189000702ND
2015-07-0715189000802ND
2015-07-0715189000902ND
2015-10-0515279001002ND
2015-10-0515279001202ND
2015-10-0515279001102ND
2015-10-0515279001302ND
2016-01-0616008002802ND
2016-01-0616008002902ND
2016-01-0616008003002ND
2016-01-0616008003102ND
2016-04-0616098003602ND
2016-04-0616098003802ND
2016-04-0616098003502ND
2016-04-0616098003702ND
2016-07-0516189014802ND
2016-07-0516189014702ND
2016-07-0516189015202ND
2016-07-0516189015302ND
2016-10-0416280016102ND
2016-10-0416280016302ND
2016-10-0416280016802ND
2016-10-0416280016202ND
2017-01-0417005006702ND
2017-01-0417005006802ND
2017-01-0417005006902ND
2017-01-0417005006602ND
2017-04-0417096003002ND
2017-04-0417096003202ND
2017-04-0417096003602ND
2017-04-0417096003302ND
2017-07-0417187015002ND
2017-07-0417187015202ND
2017-07-0417187014802ND
2017-07-0417187015102ND
2017-10-0317278016302ND
2017-10-0317278016502ND
2017-10-0317278016602ND
2017-10-0317278016702ND
2018-01-0318004003602ND
2018-01-0318004003802ND
2018-01-0318004003702ND
2018-01-0318004003502ND
2018-04-0318095017302ND
2018-04-0318095017502ND
2018-04-0318095017402ND
2018-04-0318095017902ND
2018-07-0318186016602ND
2018-07-0318186016702ND
2018-07-0318186016102ND
2018-07-0318186016502ND
2018-10-0318277008902ND
2018-10-0318277008802ND
2018-10-0318277009002ND
2018-10-0318277008702ND
2019-01-1019011002901ND
2019-01-1019011002701ND
2019-01-1019011002801ND
2019-01-1019011002601ND
2019-07-0919191005602ND
2019-07-0919191005802ND
2019-07-0919191005502ND
2019-07-0919191005702ND
2019-10-0219276005902ND
2019-10-0219276006002ND
2019-10-0219276005102ND
2019-10-0219276005802ND