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EWG's Tap Water Database — 2021 UPDATE

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Monobromoacetic acid

Hcsa- Leigh Street Plant

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

 

58

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20140.406 ppb165ND - 1.30 ppb
20150.470 ppb102ND - 2.40 ppb
20160.413 ppb82ND - 1.70 ppb
20170.145 ppb81ND - 1.16 ppb
20180.401 ppb83ND - 1.42 ppb
20191.29 ppb880.520 ppb - 3.61 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
2014-03-04E140101008ND
2014-03-04E140101020ND
2014-03-04E140101009ND
2014-03-04E140101006ND
2014-06-02E1403058491.30 ppb
2014-06-02E1403058571.30 ppb
2014-06-02E140305848ND
2014-06-02E140305853ND
2014-09-04E140900574ND
2014-09-04E1409005721.30 ppb
2014-09-04E1409005681.30 ppb
2014-09-04E1409005691.30 ppb
2014-12-01E140904245ND
2014-12-01E140904242ND
2014-12-01E140904244ND
2014-12-01E140904253ND
2015-03-19VA010-DCLSND
2015-03-19VA010-DCLSND
2015-06-01VA010-DCLSND
2015-06-01VA010-DCLSND
2015-06-30VA010-DCLSND
2015-06-30VA010-DCLSND
2015-09-24VA010-DCLS2.40 ppb
2015-09-24VA010-DCLS2.30 ppb
2015-12-16VA010-DCLSND
2015-12-16VA010-DCLSND
2016-03-10E151203967ND
2016-03-10E151203962ND
2016-06-16E160301499ND
2016-06-16E160301502ND
2016-09-13E1607048671.60 ppb
2016-09-13E1607048711.70 ppb
2016-12-13E160904418ND
2016-12-13E160904413ND
2017-03-14E161206489ND
2017-03-14E161206487ND
2017-06-06E170307072ND
2017-06-06E170307071ND
2017-09-1417091940-05AND
2017-09-1417091940-07AND
2017-12-1417122200-05AND
2017-12-1417122200-07A1.16 ppb
2018-03-2118032733-08AND
2018-03-2118032733-06AND
2018-06-2618063645-04A1.10 ppb
2018-06-2618063645-06A1.42 ppb
2018-09-2718093663-05AND
2018-09-2718093663-07AND
2018-12-1318121804-02AND
2018-12-1318121804-04A0.688 ppb
2019-03-1419032038-07A0.752 ppb
2019-03-1419032038-10A3.61 ppb
2019-06-1819062902-06A0.811 ppb
2019-06-1819062902-08A0.635 ppb
2019-09-197316440011.50 ppb
2019-09-197316440031.90 ppb
2019-12-0473106430040.590 ppb
2019-12-0473106430010.520 ppb