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EWG's Tap Water Database — 2021 UPDATE

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Monobromoacetic acid

Shannon Hills

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

 

49

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND80ND
2015ND80ND
2016ND80ND
2017ND80ND
20180.463 ppb82ND - 2.30 ppb
20190.378 ppb92ND - 1.70 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
2014-01-0714010000901ND
2014-01-0714010001001ND
2014-04-0214093006301ND
2014-04-0214093006401ND
2014-07-0214184004001ND
2014-07-0214184004101ND
2014-10-0814282014401ND
2014-10-0814282014301ND
2015-01-0715008016601ND
2015-01-0715008016701ND
2015-04-0715099008401ND
2015-04-0715099008501ND
2015-07-0615189001801ND
2015-07-0615189001901ND
2015-10-0515279000201ND
2015-10-0515279000301ND
2016-01-0716008003801ND
2016-01-0716008003901ND
2016-04-1916112006301ND
2016-04-1916112006201ND
2016-07-0416189001401ND
2016-07-0416189001301ND
2016-10-0416280017101ND
2016-10-0416280017201ND
2017-01-0417005014301ND
2017-01-0417005014401ND
2017-04-0417096001701ND
2017-04-0417096001601ND
2017-07-0317187013801ND
2017-07-0317187013701ND
2017-10-0317278017901ND
2017-10-0317278017201ND
2018-01-0218004000901ND
2018-01-0218004000801ND
2018-04-0318095018001ND
2018-05-1618136000401ND
2018-07-0218186018301ND
2018-07-0218186018401ND
2018-10-02182770106012.30 ppb
2018-10-02182770107011.40 ppb
2019-01-0819011003502ND
2019-01-0819011003602ND
2019-04-0119094016501ND
2019-04-0119094016601ND
2019-07-0919192010901ND
2019-08-1919234003001ND
2019-08-1919234003101ND
2019-10-01192760068011.70 ppb
2019-10-01192760067011.70 ppb