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EWG's Tap Water Database — 2021 UPDATE

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Bromoform

United Water Pa Mechanicsburg

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

 

99

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND160ND
2015ND160ND
2016ND160ND
2017ND160ND
2018ND160ND
2019ND190ND

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
2014-02-121071692004ND
2014-02-121071692001ND
2014-02-121071692002ND
2014-02-121071692003ND
2014-05-122006272001ND
2014-05-122006272004ND
2014-05-122006272002ND
2014-05-122006272003ND
2014-08-112022901001ND
2014-08-112022901004ND
2014-08-112022901002ND
2014-08-112022901003ND
2014-11-112039379003ND
2014-11-112039379004ND
2014-11-112039379002ND
2014-11-112039379001ND
2015-02-1012479113ND
2015-02-1012479125ND
2015-02-1012479119ND
2015-02-1012479131ND
2015-05-1112841404ND
2015-05-1112841410ND
2015-05-1112841422ND
2015-05-1112841416ND
2015-08-1013225611ND
2015-08-1013225605ND
2015-08-1013225617ND
2015-08-1013225623ND
2015-11-1113596525ND
2015-11-1113596519ND
2015-11-1113596507ND
2015-11-1113596513ND
2016-02-1113949561ND
2016-02-1113949555ND
2016-02-1113949549ND
2016-02-1113949543ND
2016-05-1114359402ND
2016-05-1114359396ND
2016-05-1114359408ND
2016-05-1114359390ND
2016-08-1014857634ND
2016-08-1014857622ND
2016-08-1014857628ND
2016-08-1014857640ND
2016-11-1015326861ND
2016-11-1015326855ND
2016-11-1015326867ND
2016-11-1015326873ND
2017-02-0715752147ND
2017-02-0715752165ND
2017-02-0715752153ND
2017-02-0715752159ND
2017-05-1216208189ND
2017-05-1216208183ND
2017-05-1216208195ND
2017-05-1216208201ND
2017-08-0916679801ND
2017-08-0916679817ND
2017-08-0916679794ND
2017-09-2816835259ND
2017-11-1317120620ND
2017-11-1317120632ND
2017-11-1317120614ND
2017-11-1317120626ND
2018-02-092294269004ND
2018-02-092294269003ND
2018-02-092294269002ND
2018-02-092294269001ND
2018-05-082313458003ND
2018-05-082313458001ND
2018-05-082313458004ND
2018-05-082313458002ND
2018-08-132332059001ND
2018-08-132332059003ND
2018-08-132332059004ND
2018-08-132332059002ND
2018-11-123000061001ND
2018-11-123000061003ND
2018-11-123000061002ND
2018-11-123000061004ND
2019-02-13H9B0664-02ND
2019-02-13H9B0664-04ND
2019-02-13H9B0664-01ND
2019-02-13H9B0664-03ND
2019-05-13H9E0710-02ND
2019-05-13H9E0710-04ND
2019-05-13H9E0710-03ND
2019-05-13H9E0710-01ND
2019-05-314312125ND
2019-08-12H9H0776-03ND
2019-08-12H9H0776-04ND
2019-08-12H9H0776-01ND
2019-08-12H9H0776-02ND
2019-09-13H9I0740-01ND
2019-09-13H9I0740-02ND
2019-11-12H9K0589-04ND
2019-11-12H9K0589-03ND
2019-11-12H9K0589-02ND
2019-11-12H9K0589-01ND