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EWG's Tap Water Database — 2021 UPDATE

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Bromoform

Liberty Utilities

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.

 

38

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND150ND
2015ND40ND
2016ND40ND
2017ND70ND
2018ND40ND
2019ND40ND

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
2014-02-1714051003501ND
2014-02-1714051003401ND
2014-02-1714051003701ND
2014-02-1714051003601ND
2014-05-0514128007102ND
2014-05-0514128007002ND
2014-05-0514128007202ND
2014-05-0514128007302ND
2014-09-0914254003802ND
2014-09-0914254003702ND
2014-09-0914254003902ND
2014-09-0914254004002ND
2014-10-2214296010601ND
2014-10-2214296010401ND
2014-10-2214296010501ND
2015-04-2115113011902ND
2015-04-2115113011802ND
2015-07-2215204000402ND
2015-07-2215204000502ND
2016-04-2116113001502ND
2016-04-2116113001602ND
2016-08-1516230000402ND
2016-08-1516230000502ND
2017-04-1717109000502ND
2017-04-1717109000402ND
2017-08-1517229003702ND
2017-08-1517229003802ND
2017-10-2417298004901ND
2017-10-2417298005001ND
2017-10-2417298004801ND
2018-05-2118144009002ND
2018-05-2118144008902ND
2018-07-1718200002602ND
2018-07-1718200002702ND
2019-04-1719108004702ND
2019-04-1719108004802ND
2019-07-0219184001401ND
2019-07-0219184003301ND