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EWG's Tap Water Database — 2021 UPDATE

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Bromoform

Purcellville, Town of

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

 

96

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
2017ND140ND
2018ND160ND
2019ND180ND

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
2014-02-26E131208339ND
2014-03-31E131208332ND
2014-03-31E131208340ND
2014-05-07E140304184ND
2014-05-07E140304168ND
2014-06-10E140304185ND
2014-06-26E140304170ND
2014-06-26E140304171ND
2014-07-31E140606696ND
2014-07-31E140606716ND
2014-08-21E140606715ND
2014-09-25E140606720ND
2014-11-18E140904332ND
2014-11-18E140904326ND
2014-12-16E140904331ND
2014-12-16E140904340ND
2015-03-02VA010-DCLSND
2015-03-02VA010-DCLSND
2015-03-26VA010-DCLSND
2015-05-06VA010-DCLSND
2015-05-06VA010-DCLSND
2015-05-21VA010-DCLSND
2015-06-10VA010-DCLSND
2015-07-30VA010-DCLSND
2015-07-30VA010-DCLSND
2015-08-06VA010-DCLSND
2015-08-13VA010-DCLSND
2015-08-13VA010-DCLSND
2015-11-09VA010-DCLSND
2015-11-09VA010-DCLSND
2015-11-17VA010-DCLSND
2015-11-17VA010-DCLSND
2016-02-08E151205957ND
2016-02-08E151205959ND
2016-03-29E151205963ND
2016-03-29E151205962ND
2016-03-29E151205960ND
2016-05-12E160305745ND
2016-05-12E160305760ND
2016-06-15E160305751ND
2016-06-20E160305746ND
2016-08-09E160700329ND
2016-08-09E160700327ND
2016-09-13E160700325ND
2016-11-10E160805474ND
2016-11-10E160805462ND
2016-11-29E160805475ND
2016-11-29E160805461ND
2017-02-08E161201333ND
2017-02-08E161201339ND
2017-02-28E170204040ND
2017-05-10E170300430ND
2017-05-10E170300431ND
2017-05-23E170300436ND
2017-05-23E170300444ND
2017-08-10E170504043ND
2017-08-10E170504039ND
2017-08-10E170504025ND
2017-11-08E170901982ND
2017-11-08E170901977ND
2017-11-16E170901981ND
2017-11-16E170901975ND
2018-02-15E180100335ND
2018-02-15E180100327ND
2018-02-27E180100342ND
2018-05-14E180303864ND
2018-05-14E180303862ND
2018-05-23E180303850ND
2018-05-30E180303851ND
2018-08-15E180601969ND
2018-08-15E180601967ND
2018-08-21E180601975ND
2018-08-28E180601971ND
2018-08-28E180601981ND
2018-11-14E180901398ND
2018-11-14E180901400ND
2018-11-19E180901410ND
2018-12-11E180901404ND
2019-02-13E181104012ND
2019-02-13E181104017ND
2019-02-19E181104004ND
2019-02-19E181104015ND
2019-02-19E181104016ND
2019-03-21E190302948ND
2019-03-21E190302957ND
2019-05-14E190304855ND
2019-05-14E190304841ND
2019-05-29E190304846ND
2019-05-29E190304839ND
2019-08-13E190609955ND
2019-08-13E190609942ND
2019-09-10E190900749ND
2019-11-13E191000261ND
2019-11-13E191000259ND
2019-11-25E191000255ND
2019-12-04E191000266ND