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EWG's Tap Water Database — 2021 UPDATE

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Monobromoacetic acid

City of Hillsboro

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

 

80

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND160ND
2015ND160ND
2016ND160ND
20170.731 ppb167ND - 2.80 ppb
20181.09 ppb86ND - 1.90 ppb
20190.550 ppb82ND - 2.30 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
2014-02-20AC44019ND
2014-02-20AC44023ND
2014-02-20AC44025ND
2014-02-20AC44024ND
2014-04-23AC51593ND
2014-04-23AC51588ND
2014-04-23AC51585ND
2014-04-23AC51586ND
2014-08-18AC64130ND
2014-08-18AC64131ND
2014-08-18AC64132ND
2014-08-18AC64134ND
2014-12-10AC74301ND
2014-12-10AC74306ND
2014-12-10AC74307ND
2014-12-10AC74308ND
2015-03-04AC82658ND
2015-03-04AC82705ND
2015-03-04AC82659ND
2015-03-04AC82660ND
2015-06-11AC95761ND
2015-06-11AC95757ND
2015-06-11AC95771ND
2015-06-11AC95762ND
2015-09-02AD05350ND
2015-09-02AD05313ND
2015-09-02AD05320ND
2015-09-02AD05321ND
2015-11-10AD13344ND
2015-11-10AD13341ND
2015-11-10AD13339ND
2015-11-10AD13340ND
2016-02-02AD21422ND
2016-02-02AD21424ND
2016-02-02AD21450ND
2016-02-02AD21419ND
2016-04-19AD33424ND
2016-04-19AD33420ND
2016-04-19AD33423ND
2016-04-19AD33421ND
2016-07-20AD44913ND
2016-07-20AD44911ND
2016-07-20AD44914ND
2016-07-20AD44910ND
2016-11-02AD56313ND
2016-11-02AD56315ND
2016-11-02AD56314ND
2016-11-02AD56312ND
2017-01-26AD67085ND
2017-01-26AD67116ND
2017-01-26AD67088ND
2017-01-26AD67086ND
2017-04-19Q1716124004ND
2017-04-19Q1716124003ND
2017-04-19Q1716124002ND
2017-04-19Q1716124001ND
2017-07-17Q17291850011.30 ppb
2017-07-17Q17291850021.000 ppb
2017-07-17Q17291850041.10 ppb
2017-07-17Q17291850031.000 ppb
2017-10-05Q17491640062.80 ppb
2017-10-05Q1749164005ND
2017-10-05Q17491640092.80 ppb
2017-10-05Q17491640041.70 ppb
2018-01-09Q1800807007ND
2018-01-09Q1800807006ND
2018-04-11Q18150140031.60 ppb
2018-04-11Q18150140071.30 ppb
2018-07-11Q18272610071.10 ppb
2018-07-11Q18272610061.10 ppb
2018-10-23Q18423080061.90 ppb
2018-10-23Q18423080051.70 ppb
2019-01-15Q19023090072.10 ppb
2019-01-15Q19023090062.30 ppb
2019-04-04Q1913765004ND
2019-04-04Q1913765007ND
2019-07-10Q1943488007ND
2019-07-10Q1943488006ND
2019-10-03Q1971019003ND
2019-10-03Q1971019004ND