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EWG's Tap Water Database — 2021 UPDATE

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Bromoform

Pa-american Water Co-connellsv

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

 

90

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013N/A00N/A
2014ND160ND
2015ND100ND
2016ND160ND
2017ND160ND
2018ND160ND
2019ND160ND

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
2014-01-0824416801ND
2014-01-0824417001ND
2014-01-0824416701ND
2014-01-0824416901ND
2014-04-0825349301ND
2014-04-0825349201ND
2014-04-0825349401ND
2014-04-0825349501ND
2014-07-0826120701ND
2014-07-0826120601ND
2014-07-0826121101ND
2014-07-0826120901ND
2014-10-0827107801ND
2014-10-0827108001ND
2014-10-0827107701ND
2014-10-0827107901ND
2015-01-1212349667ND
2015-01-1212349661ND
2015-04-0912696859ND
2015-04-0912696865ND
2015-07-0813080753ND
2015-07-0813080759ND
2015-10-0813456538ND
2015-10-0813456544ND
2015-10-0813456526ND
2015-10-0813456532ND
2016-01-1113817889ND
2016-01-1113817877ND
2016-01-1113817883ND
2016-01-1113817895ND
2016-04-1114185398ND
2016-04-1114185386ND
2016-04-1114185392ND
2016-04-1114185404ND
2016-07-1414662272ND
2016-07-1414662274ND
2016-07-1414662273ND
2016-07-1414662271ND
2016-10-1115161214ND
2016-10-1115161220ND
2016-10-1115161226ND
2016-10-1115161232ND
2017-01-1115595125ND
2017-01-1115595131ND
2017-01-1115595113ND
2017-01-1115595119ND
2017-04-1116024207ND
2017-04-1116024189ND
2017-04-1116024201ND
2017-04-1116024195ND
2017-07-1116496930ND
2017-07-1116496912ND
2017-07-1116496924ND
2017-07-1116496918ND
2017-10-1116960409ND
2017-10-1116960415ND
2017-10-1116960421ND
2017-10-1116960427ND
2018-01-0938165601ND
2018-01-0938165701ND
2018-01-0938165401ND
2018-01-0938165501ND
2018-04-0939078101ND
2018-04-0939078301ND
2018-04-0939078201ND
2018-04-0939078001ND
2018-07-0940212701ND
2018-07-0940213101ND
2018-07-0940212901ND
2018-07-0940212801ND
2018-10-0941314701ND
2018-10-0941314501ND
2018-10-0941314601ND
2018-10-0941314801ND
2019-01-0842503601ND
2019-01-0842503801ND
2019-01-0842503701ND
2019-01-0842503901ND
2019-04-0943663801ND
2019-04-0943663901ND
2019-04-0943664001ND
2019-04-0943664101ND
2019-07-0845023601ND
2019-07-0845023801ND
2019-07-0845023701ND
2019-07-0845023501ND
2019-10-0846835601ND
2019-10-0846835501ND
2019-10-0846835401ND
2019-10-0846835701ND