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EWG's Tap Water Database — 2021 UPDATE

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Bromoform

Pa-american Water- Uniontown

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

 

96

Samples

0

Samples exceeding legal limit (MCL)

15

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20140.463 ppb168ND - 1.30 ppb
20151.14 ppb165ND - 6.30 ppb
20160.0938 ppb162ND - 0.800 ppb
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
2014-02-03246715010.700 ppb
2014-02-0324671401ND
2014-02-03246713010.700 ppb
2014-02-0424671601ND
2014-05-05255524011.30 ppb
2014-05-05255522011.20 ppb
2014-05-0525552101ND
2014-05-05255520011.30 ppb
2014-08-04265294010.900 ppb
2014-08-04265293010.600 ppb
2014-08-04265291010.700 ppb
2014-08-0426529201ND
2014-11-0327372801ND
2014-11-0327373001ND
2014-11-0327372901ND
2014-11-0327373101ND
2015-02-0212463935ND
2015-02-0212463923ND
2015-02-0212463941ND
2015-02-0212463929ND
2015-05-0412821423ND
2015-05-0412821411ND
2015-05-0412821429ND
2015-05-0412821417ND
2015-08-0313205202ND
2015-08-03132051960.600 ppb
2015-08-03132052080.700 ppb
2015-08-0313205214ND
2015-11-02135790335.90 ppb
2015-11-0213579039ND
2015-11-02135790456.30 ppb
2015-11-02135790514.70 ppb
2016-02-0213932879ND
2016-02-0213932885ND
2016-02-0213932897ND
2016-02-0213932891ND
2016-05-0214336749ND
2016-05-0214336767ND
2016-05-0214336761ND
2016-05-0214336755ND
2016-08-02148315300.800 ppb
2016-08-0214831548ND
2016-08-02148315420.700 ppb
2016-08-0214831536ND
2016-11-0715306209ND
2016-11-0715306197ND
2016-11-0715306203ND
2016-11-0715306215ND
2017-02-0215731420ND
2017-02-0215731414ND
2017-02-0215731432ND
2017-02-0215731426ND
2017-05-0316184052ND
2017-05-0316184046ND
2017-05-0316184064ND
2017-05-0316184058ND
2017-08-0316654351ND
2017-08-0316654357ND
2017-08-0316654369ND
2017-08-0316654363ND
2017-11-0217099154ND
2017-11-0217099160ND
2017-11-0217099172ND
2017-11-0217099166ND
2018-02-0538548401ND
2018-02-0538548601ND
2018-02-0538548501ND
2018-02-0538548701ND
2018-05-0239398501ND
2018-05-0239398401ND
2018-05-0239398201ND
2018-05-0239398301ND
2018-08-0240662701ND
2018-08-0240662801ND
2018-08-0240662601ND
2018-08-0240662901ND
2018-11-08G1811506-001ND
2018-11-08G1811504-001ND
2018-11-08G1811501-001ND
2018-11-08G1811505-001ND
2019-02-0542861201ND
2019-02-0542861401ND
2019-02-0542861101ND
2019-02-0542861301ND
2019-05-0244025801ND
2019-05-0244026001ND
2019-05-0244025601ND
2019-05-0244025701ND
2019-08-0645842501ND
2019-08-0645842301ND
2019-08-0645842601ND
2019-08-0645842401ND
2019-11-0547373701ND
2019-11-0547373601ND
2019-11-0547373501ND
2019-11-0547373401ND