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EWG's Tap Water Database — 2021 UPDATE

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Bromoform

Pennsylvania American Water Company Yardley

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

 

107

Samples

0

Samples exceeding legal limit (MCL)

1

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND160ND
2015ND180ND
2016ND160ND
20170.0471 ppb171ND - 0.800 ppb
2018ND160ND
2019ND240ND

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
2014-02-0624654101ND
2014-02-0624654301ND
2014-02-0624654001ND
2014-02-0624654201ND
2014-05-0625532101ND
2014-05-0625532401ND
2014-05-0625532001ND
2014-05-0625532301ND
2014-08-0526500801ND
2014-08-0526501301ND
2014-08-0526500701ND
2014-08-0526501201ND
2014-11-0527356801ND
2014-11-0527357001ND
2014-11-0527356701ND
2014-11-0527356901ND
2015-02-0412389661ND
2015-02-0412389673ND
2015-02-0412389655ND
2015-02-0412389667ND
2015-05-0512737805ND
2015-05-0512737817ND
2015-05-0512737799ND
2015-05-0512737811ND
2015-08-0413123029ND
2015-08-0413123041ND
2015-08-0413123023ND
2015-08-0413123035ND
2015-11-0313502627ND
2015-11-0313502639ND
2015-11-0313502621ND
2015-11-0313502633ND
2015-12-0913621303ND
2015-12-1613621309ND
2016-02-0213858380ND
2016-02-0213858392ND
2016-02-0213858374ND
2016-02-0213858386ND
2016-05-0414236761ND
2016-05-0414236773ND
2016-05-0414236755ND
2016-05-0414236767ND
2016-08-0814719985ND
2016-08-0814719997ND
2016-08-0814719979ND
2016-08-0814719991ND
2016-11-0315213362ND
2016-11-0315213374ND
2016-11-0315213356ND
2016-11-0315213368ND
2017-02-0215642707ND
2017-02-0215642719ND
2017-02-0215642701ND
2017-02-0215642713ND
2017-05-0416080041ND
2017-05-0416080053ND
2017-05-0416080035ND
2017-05-0416080047ND
2017-08-0316550768ND
2017-08-0316550780ND
2017-08-0316550762ND
2017-08-0316550774ND
2017-09-29167129350.800 ppb
2017-11-0717010951ND
2017-11-0717010963ND
2017-11-0717010945ND
2017-11-0717010957ND
2018-02-0538532501ND
2018-02-0538532801ND
2018-02-0538533401ND
2018-02-0538532601ND
2018-05-0839377301ND
2018-05-0839377701ND
2018-05-0839378401ND
2018-05-0839377501ND
2018-08-0640630601ND
2018-08-0640631201ND
2018-08-0640632001ND
2018-08-0640631001ND
2018-11-0541758001ND
2018-11-0541758201ND
2018-11-0541758801ND
2018-11-0541758101ND
2019-02-0442846501ND
2019-02-0442846601ND
2019-02-0442846901ND
2019-02-0442846701ND
2019-05-0744007101ND
2019-05-0744007201ND
2019-05-0744007301ND
2019-05-0744007401ND
2019-08-1245816701ND
2019-08-1245816801ND
2019-08-1245816901ND
2019-08-1245817001ND
2019-10-1647442101ND
2019-10-1647442201ND
2019-10-1647442401ND
2019-10-1647442301ND
2019-11-0447356201ND
2019-11-0447356301ND
2019-11-0447356401ND
2019-11-0447356501ND
2019-12-1647555201ND
2019-12-1647555301ND
2019-12-1647555101ND
2019-12-1647555001ND