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EWG's Tap Water Database — 2021 UPDATE

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Bromoform

New Orleans Carrollton Waterworks

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

 

590

Samples

0

Samples exceeding legal limit (MCL)

8

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND1080ND
20150.0571 ppb9610ND - 0.620 ppb
2016ND960ND
2017ND960ND
2018ND980ND
2019ND960ND

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
2014-01-06AD88196ND
2014-01-06AD88197ND
2014-01-06AD88196ND
2014-01-06AD88197ND
2014-01-07201401090619ND
2014-01-07201401090620ND
2014-01-07201401090621ND
2014-01-07201401090622ND
2014-01-07201401090623ND
2014-01-07201401090624ND
2014-01-07201401090619ND
2014-01-07201401090620ND
2014-01-07201401090621ND
2014-01-07201401090622ND
2014-01-07201401090623ND
2014-01-07201401090624ND
2014-01-08201401090613ND
2014-01-08201401090614ND
2014-01-08201401090615ND
2014-01-08201401090616ND
2014-01-08201401090617ND
2014-01-08201401090618ND
2014-01-08201401090613ND
2014-01-08201401090614ND
2014-01-08201401090615ND
2014-01-08201401090616ND
2014-01-08201401090617ND
2014-01-08201401090618ND
2014-03-13AD89682ND
2014-03-13AD89683ND
2014-03-13AD89682ND
2014-03-13AD89683ND
2014-04-09201404120157ND
2014-04-09201404120158ND
2014-04-09201404120159ND
2014-04-09201404120160ND
2014-04-09201404120161ND
2014-04-09201404120162ND
2014-04-09201404120163ND
2014-04-09201404120164ND
2014-04-09201404120165ND
2014-04-09201404120166ND
2014-04-09201404120167ND
2014-04-09201404120168ND
2014-04-09201404120157ND
2014-04-09201404120158ND
2014-04-09201404120159ND
2014-04-09201404120160ND
2014-04-09201404120161ND
2014-04-09201404120162ND
2014-04-09201404120163ND
2014-04-09201404120164ND
2014-04-09201404120165ND
2014-04-09201404120166ND
2014-04-09201404120167ND
2014-04-09201404120168ND
2014-07-08201407100685ND
2014-07-08201407100686ND
2014-07-08201407100687ND
2014-07-08201407100688ND
2014-07-08201407100689ND
2014-07-08201407100685ND
2014-07-08201407100686ND
2014-07-08201407100687ND
2014-07-08201407100688ND
2014-07-08201407100689ND
2014-07-09201407100678ND
2014-07-09201407100679ND
2014-07-09201407100680ND
2014-07-09201407100681ND
2014-07-09201407100682ND
2014-07-09201407100683ND
2014-07-09201407100684ND
2014-07-09201407100678ND
2014-07-09201407100679ND
2014-07-09201407100680ND
2014-07-09201407100681ND
2014-07-09201407100682ND
2014-07-09201407100683ND
2014-07-09201407100684ND
2014-09-11AD96628ND
2014-09-11AD96629ND
2014-09-11AD96628ND
2014-09-11AD96629ND
2014-10-08201410100376ND
2014-10-08201410100377ND
2014-10-08201410100378ND
2014-10-08201410100379ND
2014-10-08201410100380ND
2014-10-08201410100381ND
2014-10-08201410100382ND
2014-10-08201410100383ND
2014-10-08201410100384ND
2014-10-08201410100385ND
2014-10-08201410100386ND
2014-10-08201410100387ND
2014-10-08201410100376ND
2014-10-08201410100377ND
2014-10-08201410100378ND
2014-10-08201410100379ND
2014-10-08201410100380ND
2014-10-08201410100381ND
2014-10-08201410100382ND
2014-10-08201410100383ND
2014-10-08201410100384ND
2014-10-08201410100385ND
2014-10-08201410100386ND
2014-10-08201410100387ND
2015-01-13201501150644ND
2015-01-13201501150645ND
2015-01-13201501150648ND
2015-01-13201501150650ND
2015-01-13201501150651ND
2015-01-13201501150644ND
2015-01-13201501150645ND
2015-01-13201501150648ND
2015-01-13201501150650ND
2015-01-13201501150651ND
2015-01-14201501150643ND
2015-01-14201501150646ND
2015-01-14201501150647ND
2015-01-14201501150649ND
2015-01-14201501150652ND
2015-01-14201501150653ND
2015-01-14201501150654ND
2015-01-14201501150643ND
2015-01-14201501150646ND
2015-01-14201501150647ND
2015-01-14201501150649ND
2015-01-14201501150652ND
2015-01-14201501150653ND
2015-01-14201501150654ND
2015-04-13201504160430ND
2015-04-13201504160431ND
2015-04-13201504160432ND
2015-04-13201504160433ND
2015-04-13201504160434ND
2015-04-13201504160435ND
2015-04-13201504160436ND
2015-04-13201504160437ND
2015-04-13201504160438ND
2015-04-13201504160439ND
2015-04-13201504160440ND
2015-04-13201504160441ND
2015-04-13201504160430ND
2015-04-13201504160431ND
2015-04-13201504160432ND
2015-04-13201504160433ND
2015-04-13201504160434ND
2015-04-13201504160435ND
2015-04-13201504160436ND
2015-04-13201504160437ND
2015-04-13201504160438ND
2015-04-13201504160439ND
2015-04-13201504160440ND
2015-04-13201504160441ND
2015-07-14201507210272ND
2015-07-14201507210273ND
2015-07-14201507210276ND
2015-07-14201507210278ND
2015-07-14201507210279ND
2015-07-14201507210281ND
2015-07-14201507210272ND
2015-07-14201507210273ND
2015-07-14201507210276ND
2015-07-14201507210278ND
2015-07-14201507210279ND
2015-07-14201507210281ND
2015-07-15201507210271ND
2015-07-15201507210274ND
2015-07-15201507210275ND
2015-07-15201507210277ND
2015-07-15201507210280ND
2015-07-15201507210282ND
2015-07-15201507210271ND
2015-07-15201507210274ND
2015-07-15201507210275ND
2015-07-15201507210277ND
2015-07-15201507210280ND
2015-07-15201507210282ND
2015-10-12201510150437ND
2015-10-12201510150440ND
2015-10-12201510150441ND
2015-10-12201510150443ND
2015-10-12201510150446ND
2015-10-12201510150447ND
2015-10-122015101504480.620 ppb
2015-10-12201510150437ND
2015-10-12201510150440ND
2015-10-12201510150441ND
2015-10-12201510150443ND
2015-10-12201510150446ND
2015-10-12201510150447ND
2015-10-122015101504480.620 ppb
2015-10-132015101504380.530 ppb
2015-10-132015101504390.540 ppb
2015-10-132015101504420.500 ppb
2015-10-13201510150444ND
2015-10-132015101504450.550 ppb
2015-10-132015101504380.530 ppb
2015-10-132015101504390.540 ppb
2015-10-132015101504420.500 ppb
2015-10-13201510150444ND
2015-10-132015101504450.550 ppb
2016-01-12201601150464ND
2016-01-12201601150467ND
2016-01-12201601150469ND
2016-01-12201601150470ND
2016-01-12201601150473ND
2016-01-12201601150464ND
2016-01-12201601150467ND
2016-01-12201601150469ND
2016-01-12201601150470ND
2016-01-12201601150473ND
2016-01-13201601150462ND
2016-01-13201601150463ND
2016-01-13201601150465ND
2016-01-13201601150466ND
2016-01-13201601150468ND
2016-01-13201601150471ND
2016-01-13201601150472ND
2016-01-13201601150462ND
2016-01-13201601150463ND
2016-01-13201601150465ND
2016-01-13201601150466ND
2016-01-13201601150468ND
2016-01-13201601150471ND
2016-01-13201601150472ND
2016-04-11201604140383ND
2016-04-11201604140386ND
2016-04-11201604140387ND
2016-04-11201604140389ND
2016-04-11201604140392ND
2016-04-11201604140393ND
2016-04-11201604140383ND
2016-04-11201604140386ND
2016-04-11201604140387ND
2016-04-11201604140389ND
2016-04-11201604140392ND
2016-04-11201604140393ND
2016-04-12201604140384ND
2016-04-12201604140385ND
2016-04-12201604140388ND
2016-04-12201604140390ND
2016-04-12201604140391ND
2016-04-12201604140394ND
2016-04-12201604140384ND
2016-04-12201604140385ND
2016-04-12201604140388ND
2016-04-12201604140390ND
2016-04-12201604140391ND
2016-04-12201604140394ND
2016-07-13201607150847ND
2016-07-13201607150848ND
2016-07-13201607150849ND
2016-07-13201607150850ND
2016-07-13201607150851ND
2016-07-13201607150852ND
2016-07-13201607150853ND
2016-07-13201607150854ND
2016-07-13201607150855ND
2016-07-13201607150856ND
2016-07-13201607150857ND
2016-07-13201607150858ND
2016-07-13201607150847ND
2016-07-13201607150848ND
2016-07-13201607150849ND
2016-07-13201607150850ND
2016-07-13201607150851ND
2016-07-13201607150852ND
2016-07-13201607150853ND
2016-07-13201607150854ND
2016-07-13201607150855ND
2016-07-13201607150856ND
2016-07-13201607150857ND
2016-07-13201607150858ND
2016-10-19201610200713ND
2016-10-19201610200714ND
2016-10-19201610200715ND
2016-10-19201610200716ND
2016-10-19201610200717ND
2016-10-19201610200718ND
2016-10-19201610200719ND
2016-10-19201610200720ND
2016-10-19201610200722ND
2016-10-19201610200723ND
2016-10-19201610200724ND
2016-10-192016102007721ND
2016-10-19201610200713ND
2016-10-19201610200714ND
2016-10-19201610200715ND
2016-10-19201610200716ND
2016-10-19201610200717ND
2016-10-19201610200718ND
2016-10-19201610200719ND
2016-10-19201610200720ND
2016-10-19201610200722ND
2016-10-19201610200723ND
2016-10-19201610200724ND
2016-10-192016102007721ND
2017-01-1335289461001ND
2017-01-1335289461002ND
2017-01-1335289461003ND
2017-01-1335289461004ND
2017-01-1335289461001ND
2017-01-1335289461002ND
2017-01-1335289461003ND
2017-01-1335289461004ND
2017-01-1735289571001ND
2017-01-1735289571002ND
2017-01-1735289571003ND
2017-01-1735289571004ND
2017-01-1735289571005ND
2017-01-1735289571006ND
2017-01-1735289571001ND
2017-01-1735289571002ND
2017-01-1735289571003ND
2017-01-1735289571004ND
2017-01-1735289571005ND
2017-01-1735289571006ND
2017-01-2435290895001ND
2017-01-2435290895002ND
2017-01-2435290895001ND
2017-01-2435290895002ND
2017-04-0435304841001ND
2017-04-0435304841002ND
2017-04-0435304841003ND
2017-04-0435304841004ND
2017-04-0435304841001ND
2017-04-0435304841002ND
2017-04-0435304841003ND
2017-04-0435304841004ND
2017-04-1935307669001ND
2017-04-1935307669002ND
2017-04-1935307669003ND
2017-04-1935307669004ND
2017-04-1935307669005ND
2017-04-1935307669006ND
2017-04-1935307669007ND
2017-04-1935307669008ND
2017-04-1935307669001ND
2017-04-1935307669002ND
2017-04-1935307669003ND
2017-04-1935307669004ND
2017-04-1935307669005ND
2017-04-1935307669006ND
2017-04-1935307669007ND
2017-04-1935307669008ND
2017-07-1435324176001ND
2017-07-1435324176002ND
2017-07-1435324176003ND
2017-07-1435324176004ND
2017-07-1435324176005ND
2017-07-1435324176006ND
2017-07-1435324176007ND
2017-07-1435324176008ND
2017-07-1435324176009ND
2017-07-1435324176010ND
2017-07-1435324176011ND
2017-07-1435324176012ND
2017-07-1435324176001ND
2017-07-1435324176002ND
2017-07-1435324176003ND
2017-07-1435324176004ND
2017-07-1435324176005ND
2017-07-1435324176006ND
2017-07-1435324176007ND
2017-07-1435324176008ND
2017-07-1435324176009ND
2017-07-1435324176010ND
2017-07-1435324176011ND
2017-07-1435324176012ND
2017-10-1935343350001ND
2017-10-1935343350002ND
2017-10-1935343350003ND
2017-10-1935343350004ND
2017-10-1935343350005ND
2017-10-1935343350006ND
2017-10-1935343350007ND
2017-10-1935343350008ND
2017-10-1935343350009ND
2017-10-1935343350010ND
2017-10-1935343350011ND
2017-10-1935343350012ND
2017-10-1935343350001ND
2017-10-1935343350002ND
2017-10-1935343350003ND
2017-10-1935343350004ND
2017-10-1935343350005ND
2017-10-1935343350006ND
2017-10-1935343350007ND
2017-10-1935343350008ND
2017-10-1935343350009ND
2017-10-1935343350010ND
2017-10-1935343350011ND
2017-10-1935343350012ND
2018-01-2435370494001ND
2018-01-2435370494002ND
2018-01-2435370494003ND
2018-01-2435370494004ND
2018-01-2435370494005ND
2018-01-2435370494006ND
2018-01-2435370494001ND
2018-01-2435370494002ND
2018-01-2435370494003ND
2018-01-2435370494004ND
2018-01-2435370494005ND
2018-01-2435370494006ND
2018-01-2935371045001ND
2018-01-2935371045002ND
2018-01-2935371045003ND
2018-01-2935371045004ND
2018-01-2935371045005ND
2018-01-2935371045006ND
2018-01-2935371045001ND
2018-01-2935371045002ND
2018-01-2935371045003ND
2018-01-2935371045004ND
2018-01-2935371045005ND
2018-01-2935371045006ND
2018-04-1635387639001ND
2018-04-1635387639001ND
2018-04-1735387640001ND
2018-04-1735387640002ND
2018-04-1735387640005ND
2018-04-1735387640007ND
2018-04-1735387640001ND
2018-04-1735387640002ND
2018-04-1735387640005ND
2018-04-1735387640007ND
2018-04-1835387641001ND
2018-04-1835387641001ND
2018-04-1935387640003ND
2018-04-1935387640004ND
2018-04-1935387640006ND
2018-04-1935387640008ND
2018-04-1935387640009ND
2018-04-1935387641002ND
2018-04-1935387640003ND
2018-04-1935387640004ND
2018-04-1935387640006ND
2018-04-1935387640008ND
2018-04-1935387640009ND
2018-04-1935387641002ND
2018-07-2535407109001ND
2018-07-2535407109003ND
2018-07-2535407109010ND
2018-07-2535407109001ND
2018-07-2535407109003ND
2018-07-2535407109010ND
2018-07-2635407109002ND
2018-07-2635407109006ND
2018-07-2635407109008ND
2018-07-2635407109009ND
2018-07-2635407109002ND
2018-07-2635407109006ND
2018-07-2635407109008ND
2018-07-2635407109009ND
2018-07-3135407844001ND
2018-07-3135407844002ND
2018-07-3135407844003ND
2018-07-3135407844004ND
2018-07-3135407844005ND
2018-07-3135407844006ND
2018-07-3135407844001ND
2018-07-3135407844002ND
2018-07-3135407844003ND
2018-07-3135407844004ND
2018-07-3135407844005ND
2018-07-3135407844006ND
2018-10-1635425096001ND
2018-10-1635425096002ND
2018-10-1635425096003ND
2018-10-1635425096011ND
2018-10-1635425096012ND
2018-10-1635425096001ND
2018-10-1635425096002ND
2018-10-1635425096003ND
2018-10-1635425096011ND
2018-10-1635425096012ND
2018-10-1735425096004ND
2018-10-1735425096005ND
2018-10-1735425096006ND
2018-10-1735425096007ND
2018-10-1735425096008ND
2018-10-1735425096009ND
2018-10-1735425096010ND
2018-10-1735425096004ND
2018-10-1735425096005ND
2018-10-1735425096006ND
2018-10-1735425096007ND
2018-10-1735425096008ND
2018-10-1735425096009ND
2018-10-1735425096010ND
2019-01-1635442883001ND
2019-01-1635442883002ND
2019-01-1635442883003ND
2019-01-1635442883004ND
2019-01-1635442883005ND
2019-01-1635442891001ND
2019-01-1635442883001ND
2019-01-1635442883002ND
2019-01-1635442883003ND
2019-01-1635442883004ND
2019-01-1635442883005ND
2019-01-1635442891001ND
2019-01-1735443169001ND
2019-01-1735443169002ND
2019-01-1735443169003ND
2019-01-1735443169004ND
2019-01-1735443169005ND
2019-01-1735443169006ND
2019-01-1735443169001ND
2019-01-1735443169002ND
2019-01-1735443169003ND
2019-01-1735443169004ND
2019-01-1735443169005ND
2019-01-1735443169006ND
2019-04-2435464347001ND
2019-04-2435464347002ND
2019-04-2435464347003ND
2019-04-2435464347004ND
2019-04-2435464347005ND
2019-04-2435464347006ND
2019-04-2435464347007ND
2019-04-2435464347008ND
2019-04-2435464347009ND
2019-04-2435464347010ND
2019-04-2435464347011ND
2019-04-2435464347012ND
2019-04-2435464347001ND
2019-04-2435464347002ND
2019-04-2435464347003ND
2019-04-2435464347004ND
2019-04-2435464347005ND
2019-04-2435464347006ND
2019-04-2435464347007ND
2019-04-2435464347008ND
2019-04-2435464347009ND
2019-04-2435464347010ND
2019-04-2435464347011ND
2019-04-2435464347012ND
2019-07-1835483776001ND
2019-07-1835483776002ND
2019-07-1835483776003ND
2019-07-1835483776004ND
2019-07-1835483776005ND
2019-07-1835483776006ND
2019-07-1835483776007ND
2019-07-1835483776008ND
2019-07-1835483776009ND
2019-07-1835483776010ND
2019-07-1835483776011ND
2019-07-1835483776012ND
2019-07-1835483776001ND
2019-07-1835483776002ND
2019-07-1835483776003ND
2019-07-1835483776004ND
2019-07-1835483776005ND
2019-07-1835483776006ND
2019-07-1835483776007ND
2019-07-1835483776008ND
2019-07-1835483776009ND
2019-07-1835483776010ND
2019-07-1835483776011ND
2019-07-1835483776012ND
2019-10-1635505764001ND
2019-10-1635505764002ND
2019-10-1635505764003ND
2019-10-1635505764004ND
2019-10-1635505764005ND
2019-10-1635505764006ND
2019-10-1635505764007ND
2019-10-1635505764008ND
2019-10-1635505764009ND
2019-10-1635505764010ND
2019-10-1635505764011ND
2019-10-1635505764012ND
2019-10-1635505764001ND
2019-10-1635505764002ND
2019-10-1635505764003ND
2019-10-1635505764004ND
2019-10-1635505764005ND
2019-10-1635505764006ND
2019-10-1635505764007ND
2019-10-1635505764008ND
2019-10-1635505764009ND
2019-10-1635505764010ND
2019-10-1635505764011ND
2019-10-1635505764012ND