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EWG's Tap Water Database — 2021 UPDATE

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Bromoform

Pennsylvania American Water Company West

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

 

166

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
2014ND320ND
2015ND320ND
2016ND200ND
2017ND180ND
2018ND320ND
2019ND320ND

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
2014-02-0624654701ND
2014-02-0624655201ND
2014-02-0624655001ND
2014-02-0624655101ND
2014-02-0624654901ND
2014-02-0624656101ND
2014-02-0624654801ND
2014-02-0624654601ND
2014-05-0726012601ND
2014-05-0726013101ND
2014-05-0726012901ND
2014-05-0726013001ND
2014-05-0726012801ND
2014-05-0726013201ND
2014-05-0726012701ND
2014-05-0726012501ND
2014-08-0626502101ND
2014-08-0626502601ND
2014-08-0626502401ND
2014-08-0626502501ND
2014-08-0626502301ND
2014-08-0626503401ND
2014-08-0626502201ND
2014-08-0626502001ND
2014-11-0527357401ND
2014-11-0527357901ND
2014-11-0527357701ND
2014-11-0527357801ND
2014-11-0527357601ND
2014-11-0527358701ND
2014-11-0527357501ND
2014-11-0527357301ND
2015-02-0512479214ND
2015-02-0512479244ND
2015-02-0512479232ND
2015-02-0512479238ND
2015-02-0512479226ND
2015-02-0512479253ND
2015-02-0512479220ND
2015-02-0512479208ND
2015-05-0512841486ND
2015-05-0512841516ND
2015-05-0512841504ND
2015-05-0512841510ND
2015-05-0512841498ND
2015-05-0512841526ND
2015-05-0512841492ND
2015-05-0512841480ND
2015-08-0513225643ND
2015-08-0513225673ND
2015-08-0513225661ND
2015-08-0513225667ND
2015-08-0513225655ND
2015-08-0513225681ND
2015-08-0513225649ND
2015-08-0513225637ND
2015-11-0913596548ND
2015-11-0913596578ND
2015-11-0913596566ND
2015-11-0913596572ND
2015-11-0913596560ND
2015-11-0913596586ND
2015-11-0913596554ND
2015-11-0913596542ND
2016-02-0813949581ND
2016-02-0813949593ND
2016-02-0813949587ND
2016-02-0813949575ND
2016-05-0614359705ND
2016-05-0614359717ND
2016-05-0614359711ND
2016-05-0614359699ND
2016-08-0514857720ND
2016-08-0514857732ND
2016-08-0514857726ND
2016-08-0514857714ND
2016-08-0914857756ND
2016-08-0914857750ND
2016-08-0914857762ND
2016-08-0914857744ND
2016-11-0815326918ND
2016-11-0815326930ND
2016-11-0815326924ND
2016-11-0815326912ND
2017-02-0615752278ND
2017-02-0615752290ND
2017-02-0615752284ND
2017-02-0615752272ND
2017-05-0816208330ND
2017-05-0816208342ND
2017-05-0816208336ND
2017-05-0816208324ND
2017-06-1516369336ND
2017-08-0416680265ND
2017-08-0416680277ND
2017-08-0416680271ND
2017-08-0416680259ND
2017-08-1116680253ND
2017-11-0617120673ND
2017-11-0617120685ND
2017-11-0617120679ND
2017-11-0617120667ND
2018-02-0538533601ND
2018-02-0538533801ND
2018-02-0538846401ND
2018-02-0538533701ND
2018-02-0538846301ND
2018-02-0538846501ND
2018-02-0538846201ND
2018-02-0538533501ND
2018-05-0739378601ND
2018-05-0739379101ND
2018-05-0739378901ND
2018-05-0739379001ND
2018-05-0739378801ND
2018-05-0739379501ND
2018-05-0739378701ND
2018-05-0739378501ND
2018-08-0640632201ND
2018-08-0640632701ND
2018-08-0640632501ND
2018-08-0640632601ND
2018-08-0640632401ND
2018-08-0640633101ND
2018-08-0640632301ND
2018-08-0640632101ND
2018-11-0541759001ND
2018-11-0541759501ND
2018-11-0541759301ND
2018-11-0541759401ND
2018-11-0541759201ND
2018-11-0541759901ND
2018-11-0541759101ND
2018-11-0541758901ND
2019-02-0442847501ND
2019-02-0442847601ND
2019-02-0442848501ND
2019-02-0442847701ND
2019-02-0442848301ND
2019-02-0442848401ND
2019-02-0442848601ND
2019-02-0442847801ND
2019-05-0644007701ND
2019-05-0644007801ND
2019-05-0644008701ND
2019-05-0644007901ND
2019-05-0644008501ND
2019-05-0644008601ND
2019-05-0644008801ND
2019-05-0644008001ND
2019-08-0545817501ND
2019-08-0545817601ND
2019-08-0545818501ND
2019-08-0545817701ND
2019-08-0545818301ND
2019-08-0545818401ND
2019-08-0545818601ND
2019-08-0545817801ND
2019-11-0447356801ND
2019-11-0447356901ND
2019-11-0447357601ND
2019-11-0447357001ND
2019-11-0447357701ND
2019-11-0447357801ND
2019-11-0447357901ND
2019-11-0447357101ND