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EWG's Tap Water Database — 2019 UPDATE

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Bromoform

Philadelphia Water Department

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.

 

253

Samples

0

Samples exceeding legal limit (MCL)

14

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012N/A00N/A
20130.0575 ppb485ND - 0.590 ppb
20140.0638 ppb809ND - 0.600 ppb
2015ND250ND
20160.0125 ppb481ND - 0.600 ppb
20170.0225 ppb522ND - 0.620 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
2013-03-131017929011ND
2013-03-131017929010ND
2013-03-131017929001ND
2013-03-131017929013ND
2013-03-131017929012ND
2013-03-131017929002ND
2013-03-1310179290150.560 ppb
2013-03-131017929007ND
2013-03-1310179290160.540 ppb
2013-03-1310179290170.590 ppb
2013-03-131017929009ND
2013-03-131017929006ND
2013-03-131017929008ND
2013-03-131017929005ND
2013-03-1310179290030.560 ppb
2013-03-131017929004ND
2013-04-101022917013ND
2013-04-101022917014ND
2013-04-101022917001ND
2013-04-101022917015ND
2013-04-101022917016ND
2013-04-101022917002ND
2013-04-101022917010ND
2013-04-101022917007ND
2013-04-1010229170120.510 ppb
2013-04-101022917011ND
2013-04-101022917009ND
2013-04-101022917006ND
2013-04-101022917008ND
2013-04-101022917005ND
2013-04-101022917003ND
2013-04-101022917004ND
2013-12-117317463ND
2013-12-117317466ND
2013-12-117317450ND
2013-12-117317464ND
2013-12-117317465ND
2013-12-117317451ND
2013-12-117317459ND
2013-12-117317457ND
2013-12-117317460ND
2013-12-117317461ND
2013-12-117317458ND
2013-12-117317456ND
2013-12-117317455ND
2013-12-117317452ND
2013-12-117317453ND
2013-12-117317454ND
2014-01-087337161ND
2014-01-087337162ND
2014-01-087337150ND
2014-01-087337163ND
2014-01-087337164ND
2014-01-087337151ND
2014-01-087337165ND
2014-01-087337157ND
2014-01-087337166ND
2014-01-087337167ND
2014-01-087337160ND
2014-01-087337156ND
2014-01-087337155ND
2014-01-087337154ND
2014-01-087337152ND
2014-01-087337153ND
2014-02-067362050ND
2014-02-067362051ND
2014-02-067362058ND
2014-02-067362052ND
2014-02-067362053ND
2014-02-0673620570.600 ppb
2014-02-0673620540.500 ppb
2014-02-0673620430.600 ppb
2014-02-0673620550.500 ppb
2014-02-0673620560.600 ppb
2014-02-0673620470.500 ppb
2014-02-067362048ND
2014-02-067362046ND
2014-02-067362049ND
2014-02-0673620440.600 ppb
2014-02-0673620450.600 ppb
2014-03-127403003ND
2014-03-127403004ND
2014-03-127402994ND
2014-03-127403005ND
2014-03-127403006ND
2014-03-127402995ND
2014-03-127403008ND
2014-03-127403001ND
2014-03-127403009ND
2014-03-127403010ND
2014-03-1274030020.600 ppb
2014-03-127403000ND
2014-03-127402999ND
2014-03-127402998ND
2014-03-127402996ND
2014-03-127402997ND
2014-04-097426198ND
2014-04-097426201ND
2014-04-097426190ND
2014-04-097426199ND
2014-04-097426200ND
2014-04-097426191ND
2014-04-097426194ND
2014-04-097426188ND
2014-04-097426195ND
2014-04-097426196ND
2014-04-097426189ND
2014-04-097426187ND
2014-04-097426186ND
2014-04-097426193ND
2014-04-097426192ND
2014-04-117428027ND
2014-05-077457122ND
2014-05-077457125ND
2014-05-077457131ND
2014-05-077457123ND
2014-05-077457124ND
2014-05-077457132ND
2014-05-077457127ND
2014-05-077457138ND
2014-05-077457128ND
2014-05-077457129ND
2014-05-077457139ND
2014-05-077457137ND
2014-05-077457136ND
2014-05-077457133ND
2014-05-077457134ND
2014-05-077457135ND
2015-06-1012888290ND
2015-06-1012888295ND
2015-06-1012888300ND
2015-06-1012888305ND
2015-06-1012888382ND
2015-06-1012888280ND
2015-06-1012888387ND
2015-06-1012888392ND
2015-06-1012888283ND
2015-07-0813017994ND
2015-07-0813017997ND
2015-07-0813017985ND
2015-07-0813017995ND
2015-07-0813017996ND
2015-07-0813017986ND
2015-07-0813017998ND
2015-07-0813017991ND
2015-07-0813017999ND
2015-07-0813018000ND
2015-07-0813017993ND
2015-07-0813017990ND
2015-07-0813017992ND
2015-07-0813017987ND
2015-07-0813017988ND
2015-07-0813017989ND
2016-04-1314109396ND
2016-04-1314109399ND
2016-04-1314109391ND
2016-04-1314109397ND
2016-04-1314109398ND
2016-04-1314109392ND
2016-04-1314109403ND
2016-04-1314109402ND
2016-04-1314109404ND
2016-04-1314109405ND
2016-04-13141094060.600 ppb
2016-04-1314109401ND
2016-04-1314109400ND
2016-04-1314109393ND
2016-04-1314109394ND
2016-04-1314109395ND
2016-05-1114257124ND
2016-05-1114257127ND
2016-05-1114257119ND
2016-05-1114257125ND
2016-05-1114257126ND
2016-05-1114257120ND
2016-05-1114257132ND
2016-05-1114257130ND
2016-05-1114257133ND
2016-05-1114257134ND
2016-05-1114257131ND
2016-05-1114257129ND
2016-05-1114257128ND
2016-05-1114257121ND
2016-05-1114257122ND
2016-05-1114257123ND
2016-12-1415379811ND
2016-12-1415379814ND
2016-12-1415379806ND
2016-12-1415379813ND
2016-12-1415379812ND
2016-12-1415379807ND
2016-12-1415379821ND
2016-12-1415379817ND
2016-12-1415379819ND
2016-12-1415379820ND
2016-12-1415379818ND
2016-12-1415379816ND
2016-12-1415379815ND
2016-12-1415379808ND
2016-12-1415379809ND
2016-12-1415379810ND
2017-01-1115523420ND
2017-01-1115523423ND
2017-01-1115523415ND
2017-01-1115523421ND
2017-01-1115523422ND
2017-01-1115523416ND
2017-01-1115523428ND
2017-01-1115523426ND
2017-01-1115523429ND
2017-01-1115523430ND
2017-01-1115523427ND
2017-01-1115523425ND
2017-01-1115523424ND
2017-01-1115523417ND
2017-01-1115523418ND
2017-01-1115523419ND
2017-03-0815802574ND
2017-03-0815802577ND
2017-03-0815802575ND
2017-03-0815802576ND
2017-07-1216419746ND
2017-07-1216419749ND
2017-07-1216419741ND
2017-07-1216419747ND
2017-07-1216419748ND
2017-07-1216419742ND
2017-07-1216419754ND
2017-07-1216419752ND
2017-07-1216419755ND
2017-07-1216419756ND
2017-07-1216419753ND
2017-07-1216419751ND
2017-07-1216419750ND
2017-07-1216419743ND
2017-07-1216419744ND
2017-07-1216419745ND
2017-11-0817029103ND
2017-11-0817029104ND
2017-11-0817029105ND
2017-11-0817029106ND
2017-11-0817029107ND
2017-11-0817029109ND
2017-11-0817029110ND
2017-11-0817029112ND
2017-11-08170291170.550 ppb
2017-11-0817029114ND
2017-11-08170291180.620 ppb
2017-11-0817029111ND
2017-11-0817029108ND
2017-11-0817029113ND
2017-11-0817029115ND
2017-11-0817029116ND