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EWG's Tap Water Database — 2021 UPDATE

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Monobromoacetic acid

Midway W/a #1

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

 

29

Samples

0

Samples exceeding legal limit (MCL)

1

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND10ND
201510.3 ppb82ND - 80.0 ppb
2016ND80ND
2017ND60ND
2018N/A00N/A
20194.67 ppb63ND - 11.0 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
2014-07-03140704-002HAND
2015-03-11150312-020HAND
2015-03-11150312-019HAND
2015-06-24150625-023HA2.00 ppb
2015-06-24150625-022HAND
2015-09-16150917-008HAND
2015-09-16150917-007HA80.0 ppb
2015-12-09151210-018HAND
2015-12-09151210-017HAND
2016-03-16160317-008HAND
2016-03-16160317-007HAND
2016-06-09160610-006HAND
2016-06-09160610-005HAND
2016-09-12160913-009HAND
2016-09-12160913-010HAND
2016-12-27161228-002HAND
2016-12-27161228-001HAND
2017-06-08170609-004HAND
2017-06-08170609-003HAND
2017-11-08171109-025HAND
2017-11-08171109-024HAND
2017-12-18171219-003HAND
2017-12-18171219-002HAND
2019-03-05190306-008HAND
2019-03-05190306-007HAND
2019-07-29190730-015HA9.00 ppb
2019-07-29190730-014HA11.0 ppb
2019-09-24190925-002HA8.00 ppb
2019-09-24190925-003HAND