Menu

EWG's Tap Water Database — 2021 UPDATE

Donate

Monobromoacetic acid

Nelson PWS

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

 

27

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20143.41 ppb32ND - 6.31 ppb
20151.70 ppb41ND - 6.80 ppb
2016ND40ND
20173.73 ppb42ND - 7.87 ppb
2018ND40ND
20193.26 ppb84ND - 8.82 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
2014-06-19AC286673.92 ppb
2014-09-18AC35648ND
2014-12-15AC395136.31 ppb
2015-03-18AC43592ND
2015-06-22AC512616.80 ppb
2015-09-16AC59533ND
2015-12-16AC63963ND
2016-03-23AC67664ND
2016-06-20AC74906ND
2016-09-15AC83885ND
2016-12-14AC88476ND
2017-03-21AC921627.87 ppb
2017-06-19AC98503ND
2017-09-12AD06479ND
2017-12-16AD106317.05 ppb
2018-03-17AD16509ND
2018-06-18AD27321ND
2018-09-12AD32945ND
2018-11-23AD36574ND
2019-03-14AD405395.02 ppb
2019-03-26AD459854.55 ppb
2019-06-17AD49134ND
2019-06-17AD49135ND
2019-09-10AD55219ND
2019-09-10AD55220ND
2019-12-16AD591267.68 ppb
2019-12-16AD591278.82 ppb