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EWG's Tap Water Database — 2021 UPDATE

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Bromoform

City of Lancaster

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

 

214

Samples

0

Samples exceeding legal limit (MCL)

1

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013N/A00N/A
2014ND320ND
20150.0171 ppb341ND - 0.580 ppb
2016ND330ND
2017ND400ND
2018ND410ND
2019ND340ND

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
2014-02-101071524004ND
2014-02-101071524002ND
2014-02-101071524003ND
2014-02-101071524007ND
2014-02-111071524001ND
2014-02-111071524006ND
2014-02-111071524008ND
2014-02-111071524005ND
2014-05-052005455004ND
2014-05-052005455001ND
2014-05-052005455003ND
2014-05-052005455007ND
2014-05-062005455002ND
2014-05-062005455006ND
2014-05-062005455008ND
2014-05-062005455005ND
2014-08-112023341004ND
2014-08-112023341001ND
2014-08-112023341006ND
2014-08-122023341002ND
2014-08-122023341008ND
2014-08-122023341007ND
2014-08-122023341005ND
2014-08-262025879001ND
2014-11-102039825004ND
2014-11-102039825002ND
2014-11-102039825003ND
2014-11-112039825001ND
2014-11-112039825006ND
2014-11-112039825008ND
2014-11-112039825007ND
2014-11-112039825005ND
2015-02-0912486220ND
2015-02-0912486208ND
2015-02-0912486232ND
2015-02-0912486214ND
2015-02-1012486202ND
2015-02-1012486244ND
2015-02-1012486238ND
2015-02-1012486226ND
2015-05-1112850275ND
2015-05-1112850287ND
2015-05-1112850269ND
2015-05-1112850293ND
2015-05-1212850263ND
2015-05-1212850257ND
2015-05-1212850299ND
2015-05-1212850281ND
2015-08-1013233779ND
2015-08-1013233803ND
2015-08-1013233773ND
2015-08-1013233797ND
2015-08-1113233767ND
2015-08-1113233761ND
2015-08-1113233791ND
2015-08-1113233785ND
2015-09-08133603340.580 ppb
2015-11-0913603670ND
2015-11-0913603652ND
2015-11-0913603664ND
2015-11-0913603676ND
2015-11-1013603658ND
2015-11-1013603682ND
2015-11-1013603694ND
2015-11-1013603688ND
2015-12-2113723391ND
2016-02-0913956403ND
2016-02-0913956408ND
2016-02-0913956409ND
2016-02-0913956410ND
2016-02-1013956404ND
2016-02-1013956405ND
2016-02-1013956406ND
2016-02-1013956407ND
2016-05-0914368510ND
2016-05-0914368511ND
2016-05-0914368512ND
2016-05-0914368514ND
2016-05-1014368513ND
2016-05-1014368515ND
2016-05-1014368516ND
2016-05-1014368517ND
2016-08-0814867967ND
2016-08-0814867972ND
2016-08-0814867973ND
2016-08-0914867968ND
2016-08-0914867969ND
2016-08-0914867971ND
2016-08-0914867974ND
2016-08-1014867970ND
2016-08-2314867975ND
2016-11-0915480564ND
2016-11-0915480565ND
2016-11-0915480569ND
2016-11-0915480570ND
2016-11-1015480563ND
2016-11-1015480566ND
2016-11-1015480567ND
2016-11-1015480568ND
2017-02-0715759690ND
2017-02-0715759691ND
2017-02-0715759694ND
2017-02-0715759695ND
2017-02-0715759696ND
2017-02-0815759689ND
2017-02-0815759692ND
2017-02-0815759693ND
2017-03-0815900978ND
2017-03-2215901006ND
2017-05-0816218013ND
2017-05-0816218014ND
2017-05-0816218015ND
2017-05-0816218016ND
2017-05-0916218010ND
2017-05-0916218011ND
2017-05-0916218012ND
2017-05-1016218009ND
2017-05-1716218080ND
2017-08-0816689426ND
2017-08-0816689427ND
2017-08-0816689428ND
2017-08-0816689429ND
2017-08-0816689430ND
2017-08-0916689423ND
2017-08-0916689424ND
2017-08-0916689425ND
2017-11-0617128897ND
2017-11-0617128919ND
2017-11-0617128941ND
2017-11-0617128952ND
2017-11-0617128963ND
2017-11-0817128886ND
2017-11-0817128908ND
2017-11-0817128930ND
2017-12-0617268371ND
2017-12-1117268393ND
2017-12-1117268404ND
2017-12-1217268382ND
2017-12-1217268415ND
2018-02-068002953-02ND
2018-02-068002953-05ND
2018-02-068002953-06ND
2018-02-068002953-07ND
2018-02-088002953-01ND
2018-02-088002953-03ND
2018-02-088002953-04ND
2018-02-088002953-08ND
2018-03-132302431001ND
2018-04-102308677001ND
2018-05-072314140001ND
2018-05-072314140005ND
2018-05-072314140006ND
2018-05-072314140007ND
2018-05-072314140008ND
2018-05-082314140002ND
2018-05-082314140003ND
2018-05-082314140004ND
2018-08-062331578002ND
2018-08-062331578003ND
2018-08-062331578004ND
2018-08-062331578005ND
2018-08-072331578006ND
2018-08-072331578007ND
2018-08-072331578008ND
2018-08-082331578001ND
2018-09-252341035001ND
2018-09-252341035002ND
2018-11-072349167001ND
2018-11-072349167003ND
2018-11-072349167004ND
2018-11-072349167005ND
2018-11-082349167002ND
2018-11-082349167006ND
2018-11-082349167007ND
2018-11-082349167008ND
2018-12-123006044002ND
2018-12-123006044003ND
2018-12-123006044004ND
2018-12-123006044005ND
2018-12-123006044006ND
2019-02-063015556002ND
2019-02-063015556004ND
2019-02-063015556005ND
2019-02-063015556006ND
2019-02-063015556007ND
2019-02-073015556001ND
2019-02-073015556003ND
2019-02-073015556008ND
2019-05-063032689001ND
2019-05-063032689002ND
2019-05-063032689004ND
2019-05-063032689005ND
2019-05-073032689003ND
2019-05-073032689006ND
2019-05-073032689007ND
2019-05-073032689008ND
2019-08-063050286002ND
2019-08-063050286003ND
2019-08-063050286004ND
2019-08-063050286006ND
2019-08-073050286001ND
2019-08-073050286005ND
2019-08-073050286007ND
2019-08-073050286008ND
2019-09-173058859001ND
2019-11-073068920001ND
2019-11-073068920002ND
2019-11-073068920003ND
2019-11-073068920004ND
2019-11-073068920005ND
2019-11-083069998001ND
2019-11-083069998002ND
2019-11-083069998003ND
2019-12-183076613001ND