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EWG's Tap Water Database — 2021 UPDATE

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Monobromoacetic acid

Liberty Danville Fresh Water Supply District 2

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

 

24

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND40ND
20150.550 ppb42ND - 1.20 ppb
20160.525 ppb42ND - 1.10 ppb
2017ND40ND
20180.250 ppb41ND - 1.000 ppb
2019ND40ND

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
2014-02-17Q1404802001ND
2014-06-05Q1419733001ND
2014-08-15Q1437377001ND
2014-10-08Q1451741004ND
2015-02-17Q15062750011.000 ppb
2015-06-11Q1521801001ND
2015-09-11Q15354710011.20 ppb
2015-11-24Q1546817001ND
2016-03-22Q1611706001ND
2016-06-15Q1624313001ND
2016-07-06Q16271350041.000 ppb
2016-10-06Q16425110011.10 ppb
2017-01-10Q1701121001ND
2017-04-06Q1714266003ND
2017-07-07Q1727775001ND
2017-10-04Q1748895002ND
2018-02-23Q18077300011.000 ppb
2018-04-05Q1814216001ND
2018-07-19Q1828819001ND
2018-10-18Q1841710001ND
2019-03-21Q1911929001ND
2019-05-28Q1928794001ND
2019-09-05Q1962427003ND
2019-11-20Q1977657001ND