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EWG's Tap Water Database — 2021 UPDATE

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Bromoform

Altavista, 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

 

52

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND90ND
2015ND80ND
2016ND80ND
2017ND80ND
2018ND80ND
2019ND110ND

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
2014-03-26E131203649ND
2014-03-26E131203656ND
2014-06-10E140303726ND
2014-06-10E140303722ND
2014-09-16E140606505ND
2014-09-16E140606535ND
2014-10-01E140900867ND
2014-12-10E140900883ND
2014-12-10E140900886ND
2015-03-11VA010-DCLSND
2015-03-11VA010-DCLSND
2015-06-03VA010-DCLSND
2015-06-03VA010-DCLSND
2015-09-1000281-REI CONSULND
2015-09-1000281-REI CONSULND
2015-12-1000281-REI CONSULND
2015-12-1000281-REI CONSULND
2016-03-1016031498-07AND
2016-03-1016031498-09AND
2016-06-1616062118-09AND
2016-06-1616062118-08AND
2016-09-2016092198-05AND
2016-09-2016092198-04AND
2016-12-0616121241-04AND
2016-12-0616121241-02AND
2017-03-0717030889-13AND
2017-03-0717030889-14AND
2017-06-0817061284-14AND
2017-06-0817061284-13AND
2017-09-0517090389-12AND
2017-09-0717090982-02AND
2017-12-0517120510-01AND
2017-12-0517120506-02AND
2018-03-0618030916-12AND
2018-03-0618030915-01AND
2018-06-0518060506-02AND
2018-06-0518060505-01AND
2018-09-0418090319-01AND
2018-09-0418090319-03AND
2018-12-0418120531-11AND
2018-12-0418120531-13AND
2019-03-0519030486-03AND
2019-03-0519030486-04AND
2019-06-0419060316-01AND
2019-06-0419060316-02AND
2019-09-0335495482003ND
2019-09-0635495482001ND
2019-10-14734664004ND
2019-10-14734664006ND
2019-10-14734664003ND
2019-12-167311896003ND
2019-12-167311896001ND