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EWG's Tap Water Database — 2021 UPDATE

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Bromoform

Durant

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

 

100

Samples

0

Samples exceeding legal limit (MCL)

9

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND200ND
2015ND160ND
20160.391 ppb168ND - 1.17 ppb
20170.106 ppb161ND - 1.69 ppb
2018ND160ND
2019ND160ND

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
2014-01-21039274.009ND
2014-01-21039274.007ND
2014-01-21039274.005ND
2014-01-21039274.003ND
2014-01-21039274.001ND
2014-04-02041854.007ND
2014-04-02041854.005ND
2014-04-02041854.003ND
2014-04-02041854.001ND
2014-04-14041854.012ND
2014-07-16044991.005ND
2014-07-16044991.001ND
2014-07-16044991.003ND
2014-07-16044991.007ND
2014-07-16044991.009ND
2014-10-08048808.009ND
2014-10-08048808.007ND
2014-10-08048808.005ND
2014-10-08048808.003ND
2014-10-08048808.001ND
2015-01-20051923.007ND
2015-01-20051923.005ND
2015-01-20051923.003ND
2015-01-20051923.001ND
2015-04-13054810.007ND
2015-04-13054810.001ND
2015-04-13054810.003ND
2015-04-13054810.005ND
2015-07-29058967.007ND
2015-07-29058967.005ND
2015-07-29058967.003ND
2015-07-29058967.001ND
2015-10-14063640.007ND
2015-10-14063640.005ND
2015-10-14063640.003ND
2015-10-14063640.001ND
2016-01-20067592.005ND
2016-01-20067592.001ND
2016-01-20067592.003ND
2016-01-20067592.007ND
2016-04-1316043390.510 ppb
2016-04-131604338ND
2016-04-1316043370.760 ppb
2016-04-1316043361.06 ppb
2016-07-0916073800.820 ppb
2016-07-0916073790.550 ppb
2016-07-0916073780.700 ppb
2016-07-0916073770.690 ppb
2016-10-121610362ND
2016-10-121610361ND
2016-10-121610360ND
2016-10-1216103591.17 ppb
2017-01-101701299ND
2017-01-101701298ND
2017-01-101701297ND
2017-01-101701296ND
2017-04-121704350ND
2017-04-121704349ND
2017-04-121704348ND
2017-04-121704347ND
2017-07-261707668ND
2017-07-261707666ND
2017-07-261707667ND
2017-07-261707669ND
2017-10-101710432ND
2017-10-101710431ND
2017-10-101710430ND
2017-10-1017104291.69 ppb
2018-01-241801619ND
2018-01-241801618ND
2018-01-241801617ND
2018-01-241801616ND
2018-04-181804501ND
2018-04-181804500ND
2018-04-181804502ND
2018-04-181804503ND
2018-07-111807361ND
2018-07-111807360ND
2018-07-111807359ND
2018-07-111807358ND
2018-10-311810706ND
2018-10-311810705ND
2018-10-311810704ND
2018-10-311810703ND
2019-01-301901680ND
2019-01-301901678ND
2019-01-301901679ND
2019-01-301901681ND
2019-04-051904387ND
2019-04-051904386ND
2019-04-051904385ND
2019-04-051904384ND
2019-07-091907383ND
2019-07-091907382ND
2019-07-091907381ND
2019-07-091907380ND
2019-10-091910375ND
2019-10-091910376ND
2019-10-091910377ND
2019-10-091910374ND