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EWG's Tap Water Database — 2021 UPDATE

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Bromoform

United Water Pennsylvania

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

 

233

Samples

0

Samples exceeding legal limit (MCL)

8

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20140.0627 ppb333ND - 0.790 ppb
20150.0740 ppb404ND - 1.20 ppb
2016ND400ND
2017ND400ND
2018ND400ND
20190.0143 ppb401ND - 0.570 ppb

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
2014-02-111071346001ND
2014-02-111071346002ND
2014-02-111071346003ND
2014-02-111071346004ND
2014-02-111071346005ND
2014-02-111071346006ND
2014-02-111071346007ND
2014-02-111071346008ND
2014-05-092006078001ND
2014-05-092006078002ND
2014-05-092006078003ND
2014-05-092006078004ND
2014-05-092006078005ND
2014-05-092006078006ND
2014-05-092006078007ND
2014-05-092006078008ND
2014-08-1120227160010.600 ppb
2014-08-112022716002ND
2014-08-1120227160030.680 ppb
2014-08-112022716004ND
2014-08-112022716005ND
2014-08-112022716006ND
2014-08-1120227160070.790 ppb
2014-08-112022716008ND
2014-11-102039165001ND
2014-11-102039165002ND
2014-11-102039165003ND
2014-11-102039165004ND
2014-11-102039165005ND
2014-11-102039165006ND
2014-11-102039165007ND
2014-11-102039165008ND
2014-12-012042447001ND
2015-01-0512368599ND
2015-02-0912481505ND
2015-02-09124815110.530 ppb
2015-02-0912481517ND
2015-02-0912481523ND
2015-02-0912481529ND
2015-02-0912481535ND
2015-02-0912481541ND
2015-02-0912481547ND
2015-03-0912597404ND
2015-04-0112597410ND
2015-05-1112844241ND
2015-05-1112844247ND
2015-05-1112844253ND
2015-05-1112844259ND
2015-05-1112844265ND
2015-05-1112844271ND
2015-05-1112844277ND
2015-05-1112844283ND
2015-06-0312844296ND
2015-07-0613101919ND
2015-08-10132280740.640 ppb
2015-08-1013228080ND
2015-08-1013228086ND
2015-08-1013228092ND
2015-08-1013228098ND
2015-08-1013228104ND
2015-08-10132281100.590 ppb
2015-08-1013228116ND
2015-09-0113228193ND
2015-10-06134774371.20 ppb
2015-11-0913598708ND
2015-11-0913598714ND
2015-11-0913598720ND
2015-11-0913598726ND
2015-11-0913598732ND
2015-11-0913598738ND
2015-11-0913598744ND
2015-11-0913598750ND
2015-12-0713718247ND
2016-01-0813836735ND
2016-02-0813951692ND
2016-02-0813951698ND
2016-02-0813951704ND
2016-02-0813951710ND
2016-02-0813951716ND
2016-02-0813951722ND
2016-02-0813951728ND
2016-02-0813951734ND
2016-03-0113951680ND
2016-04-0414067174ND
2016-05-0914362302ND
2016-05-0914362326ND
2016-05-0914362290ND
2016-05-0914362308ND
2016-05-0914362296ND
2016-05-0914362284ND
2016-05-0914362314ND
2016-05-0914362320ND
2016-06-0614362349ND
2016-07-0514690992ND
2016-08-0814860687ND
2016-08-0814860663ND
2016-08-0814860693ND
2016-08-0814860675ND
2016-08-0814860681ND
2016-08-0814860699ND
2016-08-0814860705ND
2016-08-0814860669ND
2016-09-1215033377ND
2016-10-1315186704ND
2016-11-0915329381ND
2016-11-0915329393ND
2016-11-0915329357ND
2016-11-0915329375ND
2016-11-0915329399ND
2016-11-0915329363ND
2016-11-0915329369ND
2016-11-0915329387ND
2016-12-0515474725ND
2017-01-1115617589ND
2017-02-0815754526ND
2017-02-0815754538ND
2017-02-0815754532ND
2017-02-0815754511ND
2017-02-0815754550ND
2017-02-0815754544ND
2017-02-0815754520ND
2017-02-0815754505ND
2017-03-0615895362ND
2017-04-0416049193ND
2017-05-1016211284ND
2017-05-1016211260ND
2017-05-1016211266ND
2017-05-1016211278ND
2017-05-1016211254ND
2017-05-1016211242ND
2017-05-1016211248ND
2017-05-1016211272ND
2017-06-0516372043ND
2017-07-0616522831ND
2017-08-1016683012ND
2017-08-1016682982ND
2017-08-1016683007ND
2017-08-1016682995ND
2017-08-1016683000ND
2017-08-1016682969ND
2017-08-1016682975ND
2017-08-1016682987ND
2017-09-1116837938ND
2017-10-0416838044ND
2017-11-0917123076ND
2017-11-0917123094ND
2017-11-0917123070ND
2017-11-0917123100ND
2017-11-0917123082ND
2017-11-0917123088ND
2017-11-0917123064ND
2017-11-0917123106ND
2017-12-0417123264ND
2018-01-112288047001ND
2018-02-122294628001ND
2018-02-122294628002ND
2018-02-122294628003ND
2018-02-122294628004ND
2018-02-122294628005ND
2018-02-122294628006ND
2018-02-122294628007ND
2018-02-122294628008ND
2018-03-052299298001ND
2018-04-092307563001ND
2018-05-082313457001ND
2018-05-082313457002ND
2018-05-082313457003ND
2018-05-082313457004ND
2018-05-082313457005ND
2018-05-082313457006ND
2018-05-082313457007ND
2018-05-082313457008ND
2018-06-072319163001ND
2018-07-052324334001ND
2018-08-132332060001ND
2018-08-132332060002ND
2018-08-132332060003ND
2018-08-132332060004ND
2018-08-132332060005ND
2018-08-132332060006ND
2018-08-132332060007ND
2018-08-132332060008ND
2018-09-132337916001ND
2018-10-012341400001ND
2018-11-123000055001ND
2018-11-123000055002ND
2018-11-123000055003ND
2018-11-123000055004ND
2018-11-123000055005ND
2018-11-123000055006ND
2018-11-123000055007ND
2018-11-123000055008ND
2018-12-063004070001ND
2019-01-09H9A0602-01ND
2019-02-11H9B0641-01ND
2019-02-11H9B0641-02ND
2019-02-11H9B0641-03ND
2019-02-11H9B0641-04ND
2019-02-11H9B0641-05ND
2019-02-11H9B0641-06ND
2019-02-11H9B0641-07ND
2019-02-11H9B0641-08ND
2019-03-11H9C0584-01ND
2019-04-08H9D0658-01ND
2019-05-08H9E0656-01ND
2019-05-08H9E0656-02ND
2019-05-08H9E0656-03ND
2019-05-08H9E0656-04ND
2019-05-08H9E0656-05ND
2019-05-08H9E0656-06ND
2019-05-08H9E0656-07ND
2019-05-08H9E0656-08ND
2019-06-03H9F0594-01ND
2019-07-01H9G0670-01ND
2019-08-08H9H0719-01ND
2019-08-08H9H0719-02ND
2019-08-08H9H0719-03ND
2019-08-08H9H0719-04ND
2019-08-08H9H0719-05ND
2019-08-08H9H0719-06ND
2019-08-08H9H0719-07ND
2019-08-08H9H0719-08ND
2019-09-03H9I0538-01ND
2019-10-08H9J0614-010.570 ppb
2019-11-11H9K0576-01ND
2019-11-11H9K0576-02ND
2019-11-11H9K0576-03ND
2019-11-11H9K0576-04ND
2019-11-11H9K0576-05ND
2019-11-11H9K0576-06ND
2019-11-11H9K0576-07ND
2019-11-11H9K0576-08ND
2019-12-11H9L0626-01ND