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EWG's Tap Water Database — 2021 UPDATE

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Monobromoacetic acid

Los Angeles County Waterworks District 40 Reg. 35 - N.E. L.A.

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
20150.351 ppb82ND - 1.71 ppb
2016ND60ND
2017ND60ND
2018N/A00N/A
2019N/A00N/A

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
2014-07-145442-801-1050ND
2014-07-145442-800-1115ND
2014-10-165442-801-1118ND
2014-10-165442-800-1050ND
2015-01-285442-800-1045ND
2015-01-285442-801-1025ND
2015-04-135442-800-1029ND
2015-04-135442-801-1000ND
2015-07-155442-801-10431.71 ppb
2015-07-155442-800-1017ND
2015-10-275442-801-13051.10 ppb
2015-10-275442-800-1324ND
2016-01-225442-801-1645ND
2016-01-225442-800-1617ND
2016-04-215442-801-1025ND
2016-04-215442-800-1055ND
2016-07-215442-800-1230ND
2016-07-215442-801-1206ND
2017-01-185442-800-1401ND
2017-01-185442-801-1342ND
2017-04-209590-800-1230ND
2017-04-209590-801-1158ND
2017-07-179588-800-1210ND
2017-07-179588-801-1156ND