Menu

EWG's Tap Water Database — 2021 UPDATE

Donate

Bromoform

Benton Waterworks

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

 

98

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND170ND
2015ND170ND
2016ND170ND
2017ND170ND
2018ND170ND
2019ND130ND

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
2014-01-0714010000402ND
2014-01-0814010002202ND
2014-01-0814010002302ND
2014-01-0914010003102ND
2014-04-0114093005802ND
2014-04-0114093005902ND
2014-04-0114093005702ND
2014-04-0114093006002ND
2014-07-0814191001902ND
2014-07-0814191001802ND
2014-07-0814191001702ND
2014-07-0814191002002ND
2014-09-1514261004101ND
2014-10-0814282003802ND
2014-10-0814282003902ND
2014-10-0814282004002ND
2014-10-0814282004102ND
2015-01-0615008015702ND
2015-01-0615008015602ND
2015-01-0615008015402ND
2015-01-0615008015502ND
2015-04-0115092009002ND
2015-04-0115092008802ND
2015-04-0115092008502ND
2015-04-0115092008902ND
2015-07-2315205004802ND
2015-07-2315205004702ND
2015-07-2315205004402ND
2015-07-2315205004302ND
2015-08-2415238002009ND
2015-10-0615279001902ND
2015-10-0615279002102ND
2015-10-0615279002002ND
2015-10-0615279001802ND
2016-01-0816008013702ND
2016-01-0816008013402ND
2016-01-0816008013902ND
2016-01-0816008013802ND
2016-04-1816112005802ND
2016-04-1816112005702ND
2016-04-1816112005602ND
2016-04-1816112005902ND
2016-07-0516189002901ND
2016-07-0516189002302ND
2016-07-0516189002402ND
2016-07-0516189002502ND
2016-07-0516189002602ND
2016-10-0416280016702ND
2016-10-0416280015202ND
2016-10-0416280016402ND
2016-10-0416280015302ND
2017-01-0417005008102ND
2017-01-0417005007002ND
2017-01-0417005007302ND
2017-01-0417005007402ND
2017-04-0417096003102ND
2017-04-0417096002702ND
2017-04-0417096002302ND
2017-04-0417096002602ND
2017-07-0317187013201ND
2017-07-0417187014302ND
2017-07-0417187014402ND
2017-07-0417187016302ND
2017-07-0417187014902ND
2017-10-0317278016402ND
2017-10-0317278015602ND
2017-10-0317278015902ND
2017-10-0317278016002ND
2018-01-0218004002002ND
2018-01-0218004002102ND
2018-01-0218004001802ND
2018-01-0218004001902ND
2018-04-0318095016202ND
2018-04-0318095016302ND
2018-04-0318095016102ND
2018-04-0318095017602ND
2018-07-0318186017802ND
2018-07-0318186016402ND
2018-07-0318186017902ND
2018-07-0318186018002ND
2018-07-2518206000309ND
2018-10-0218277011702ND
2018-10-0218277011802ND
2018-10-0218277010502ND
2018-10-0218277011902ND
2019-01-0919011001001ND
2019-01-0919011000901ND
2019-01-0919011001401ND
2019-01-0919011001101ND
2019-07-0819191006102ND
2019-07-0819191005902ND
2019-07-0819191006902ND
2019-07-0819191006302ND
2019-07-0819191006501ND
2019-10-0219276005402ND
2019-10-0219276005302ND
2019-10-0219276005702ND
2019-10-0219276005202ND