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EWG's Tap Water Database — 2021 UPDATE

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Monobromoacetic acid

Bethesda WSC

Monobromoacetic acid, one of the group of five haloacetic acids regulated by federal standards, is formed when chlorine or other disinfectants are used to treat drinking water. Haloacetic acids 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
2013N/A00N/A
20140.344 ppb163ND - 2.50 ppb
20150.194 ppb162ND - 2.00 ppb
2016ND160ND
2017ND160ND
20180.206 ppb163ND - 1.30 ppb
20190.650 ppb166ND - 2.50 ppb

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 25 ppb

The EWG Health Guideline of 25 ppb for monobromoacetic acid was proposed in 2020 by the California Office of Environmental Health Hazard Assessment as a public health goal, the level of a drinking water contaminant that does not pose a significant health risk.. This health guideline protects against muscular degeneration.

ppb = parts per billion

All test results

Date Lab ID Result
2014-03-20Q1409114004ND
2014-03-20Q1409114003ND
2014-03-20Q1409114002ND
2014-03-20Q14091140011.20 ppb
2014-06-13Q1421328001ND
2014-06-13Q1421328014ND
2014-06-13Q1421328013ND
2014-06-13Q1421328012ND
2014-09-08Q14419540041.80 ppb
2014-09-08Q1441954003ND
2014-09-08Q1441954001ND
2014-09-08Q14419540022.50 ppb
2014-11-19Q1456730008ND
2014-11-19Q1456730007ND
2014-11-19Q1456730006ND
2014-11-19Q1456730005ND
2015-02-03Q1504044005ND
2015-02-03Q15040440081.10 ppb
2015-02-03Q1504044007ND
2015-02-03Q15040440062.00 ppb
2015-04-22Q1515039021ND
2015-04-22Q1515039022ND
2015-04-22Q1515039024ND
2015-04-22Q1515039023ND
2015-08-04Q1530233010ND
2015-08-04Q1530233009ND
2015-08-04Q1530233008ND
2015-08-04Q1530233007ND
2015-11-02Q1543432004ND
2015-11-02Q1543432003ND
2015-11-02Q1543432002ND
2015-11-02Q1543432001ND
2016-02-17Q1607184009ND
2016-02-17Q1607184008ND
2016-02-17Q1607184010ND
2016-02-17Q1607184011ND
2016-04-20Q1615721017ND
2016-04-20Q1615721016ND
2016-04-20Q1615721015ND
2016-04-20Q1615721014ND
2016-09-06Q1635394004ND
2016-09-06Q1635394003ND
2016-09-06Q1635394002ND
2016-09-06Q1635394001ND
2016-11-08Q1648213018ND
2016-11-08Q1648213021ND
2016-11-08Q1648213020ND
2016-11-08Q1648213019ND
2017-01-31Q1704122024ND
2017-01-31Q1704122011ND
2017-01-31Q1704122010ND
2017-01-31Q1704122009ND
2017-04-18Q1715805005ND
2017-04-18Q1715805004ND
2017-04-18Q1715805003ND
2017-04-18Q1715805002ND
2017-07-18Q1729512003ND
2017-07-18Q1729512002ND
2017-07-18Q1729512004ND
2017-07-18Q1729512005ND
2017-10-17Q1753293006ND
2017-10-17Q1753293023ND
2017-10-17Q1753293028ND
2017-10-17Q1753293032ND
2018-02-21Q1807322008ND
2018-02-21Q1807322002ND
2018-02-21Q1807322007ND
2018-02-21Q1807322006ND
2018-05-16Q18199570361.30 ppb
2018-05-16Q18199570371.000 ppb
2018-05-16Q1819957039ND
2018-05-16Q1819957038ND
2018-07-25Q1829607005ND
2018-07-25Q1829607004ND
2018-07-25Q1829607003ND
2018-07-25Q1829607002ND
2018-10-19Q18420520121.000 ppb
2018-10-19Q1842052011ND
2018-10-19Q1842052010ND
2018-10-19Q1842052009ND
2019-01-15Q19019900142.20 ppb
2019-01-15Q19019900132.50 ppb
2019-01-15Q19019900151.10 ppb
2019-01-15Q19019900162.00 ppb
2019-04-11Q1914886033ND
2019-04-11Q1914886032ND
2019-04-11Q1914886031ND
2019-04-11Q1914886030ND
2019-08-06Q19516200051.000 ppb
2019-08-06Q1951620004ND
2019-08-06Q19516200031.60 ppb
2019-08-06Q1951620002ND
2019-10-07Q1971784003ND
2019-10-07Q1971784006ND
2019-10-07Q1971784005ND
2019-10-07Q1971784004ND