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EWG's Tap Water Database — 2021 UPDATE

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Monobromoacetic acid

Ontario Municipal Utilities Company

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

 

185

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013N/A00N/A
20142.99 ppb3224ND - 7.80 ppb
20150.984 ppb3215ND - 5.30 ppb
20160.268 ppb255ND - 1.50 ppb
2017ND320ND
20180.375 ppb328ND - 1.90 ppb
20190.234 ppb326ND - 1.60 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
2014-02-204790-601-08206.00 ppb
2014-02-204790-602-0745ND
2014-02-204790-603-08557.20 ppb
2014-02-204790-604-11257.60 ppb
2014-02-204790-605-11057.40 ppb
2014-02-204790-606-08006.50 ppb
2014-02-204790-607-11157.80 ppb
2014-02-204790-608-08407.10 ppb
2014-05-214790-601-08202.20 ppb
2014-05-214790-602-0729ND
2014-05-214790-603-08553.10 ppb
2014-05-214790-604-11453.30 ppb
2014-05-214790-605-11153.80 ppb
2014-05-214790-606-08004.20 ppb
2014-05-214790-607-11301.60 ppb
2014-05-214790-608-08401.50 ppb
2014-08-214790-601-08271.20 ppb
2014-08-214790-602-07582.10 ppb
2014-08-214790-603-0900ND
2014-08-214790-604-10514.20 ppb
2014-08-214790-605-11162.90 ppb
2014-08-214790-606-0813ND
2014-08-214790-607-11036.40 ppb
2014-08-214790-608-08453.00 ppb
2014-11-204790-601-0820ND
2014-11-204790-602-0730ND
2014-11-204790-603-0910ND
2014-11-204790-604-11451.40 ppb
2014-11-204790-605-11251.60 ppb
2014-11-204790-606-0800ND
2014-11-204790-607-11351.50 ppb
2014-11-204790-608-08402.00 ppb
2015-02-194790-601-07551.60 ppb
2015-02-194790-602-0730ND
2015-02-194790-603-08253.20 ppb
2015-02-194790-604-11051.40 ppb
2015-02-194790-605-10451.50 ppb
2015-02-194790-606-11251.40 ppb
2015-02-194790-607-10551.40 ppb
2015-02-194790-608-08151.60 ppb
2015-05-214790-601-08172.10 ppb
2015-05-214790-602-07441.20 ppb
2015-05-214790-603-0852ND
2015-05-214790-604-11402.80 ppb
2015-05-214790-605-11081.20 ppb
2015-05-214790-606-08001.80 ppb
2015-05-214790-607-11255.30 ppb
2015-05-214790-608-08383.50 ppb
2015-08-134790-601-0930ND
2015-08-134790-602-0753ND
2015-08-134790-603-0905ND
2015-08-134790-604-1225ND
2015-08-134790-605-1207ND
2015-08-134790-606-0830ND
2015-08-134790-607-12151.50 ppb
2015-08-134790-608-0915ND
2015-11-194790-601-0835ND
2015-11-194790-602-0750ND
2015-11-194790-603-0910ND
2015-11-194790-604-1210ND
2015-11-194790-605-1140ND
2015-11-194790-606-0810ND
2015-11-194790-607-1155ND
2015-11-194790-608-0850ND
2016-02-184790-601-08151.50 ppb
2016-05-264790-601-0750ND
2016-05-264790-602-0716ND
2016-05-264790-603-0823ND
2016-05-264790-604-10551.40 ppb
2016-05-264790-605-10341.30 ppb
2016-05-264790-606-0734ND
2016-05-264790-607-10441.30 ppb
2016-05-264790-608-08061.20 ppb
2016-08-254790-601-0811ND
2016-08-254790-602-0730ND
2016-08-254790-603-0841ND
2016-08-254790-604-1115ND
2016-08-254790-605-1134ND
2016-08-254790-606-0749ND
2016-08-254790-607-1124ND
2016-08-254790-608-0824ND
2016-11-174790-601-0802ND
2016-11-174790-602-0715ND
2016-11-174790-603-0847ND
2016-11-174790-604-1136ND
2016-11-174790-605-1113ND
2016-11-174790-606-0736ND
2016-11-174790-607-1123ND
2016-11-174790-608-0820ND
2017-02-234790-601-1000ND
2017-02-234790-602-0920ND
2017-02-234790-603-1040ND
2017-02-234790-604-1105ND
2017-02-234790-605-1135ND
2017-02-234790-606-0945ND
2017-02-234790-607-1115ND
2017-02-234790-608-1020ND
2017-05-114790-601-0835ND
2017-05-114790-602-0745ND
2017-05-114790-603-0925ND
2017-05-114790-604-1210ND
2017-05-114790-605-1150ND
2017-05-114790-606-0810ND
2017-05-114790-608-0850ND
2017-05-304790-607-1452ND
2017-08-104790-601-0830ND
2017-08-104790-602-0740ND
2017-08-104790-603-0905ND
2017-08-104790-604-1200ND
2017-08-104790-605-1125ND
2017-08-104790-606-0805ND
2017-08-104790-607-1140ND
2017-08-104790-608-0855ND
2017-11-164790-601-0835ND
2017-11-164790-602-0740ND
2017-11-164790-603-0920ND
2017-11-164790-604-1210ND
2017-11-164790-605-1142ND
2017-11-164790-606-0805ND
2017-11-164790-607-1155ND
2017-11-164790-608-0900ND
2018-02-084790-601-0820ND
2018-02-084790-602-0740ND
2018-02-084790-603-0905ND
2018-02-084790-604-1145ND
2018-02-084790-605-1120ND
2018-02-084790-606-0800ND
2018-02-084790-607-1135ND
2018-02-084790-608-08501.000 ppb
2018-05-104790-601-0825ND
2018-05-104790-602-0740ND
2018-05-104790-603-0905ND
2018-05-104790-604-1205ND
2018-05-104790-605-1135ND
2018-05-104790-606-0805ND
2018-05-104790-607-1150ND
2018-05-104790-608-0845ND
2018-08-094790-601-0850ND
2018-08-094790-602-0800ND
2018-08-094790-603-0930ND
2018-08-094790-604-12351.80 ppb
2018-08-094790-605-12051.90 ppb
2018-08-094790-606-0825ND
2018-08-094790-607-12201.80 ppb
2018-08-094790-608-09101.90 ppb
2018-11-154790-601-0830ND
2018-11-154790-602-0740ND
2018-11-154790-603-0910ND
2018-11-154790-604-12101.30 ppb
2018-11-154790-605-11401.20 ppb
2018-11-154790-606-0800ND
2018-11-154790-607-11551.10 ppb
2018-11-154790-608-0855ND
2019-02-134790-601-1130ND
2019-02-134790-602-1210ND
2019-02-134790-603-1055ND
2019-02-134790-604-1035ND
2019-02-134790-605-10101.000 ppb
2019-02-134790-606-1150ND
2019-02-134790-607-1020ND
2019-02-134790-608-11101.20 ppb
2019-05-094790-601-0900ND
2019-05-094790-602-0815ND
2019-05-094790-603-0955ND
2019-05-094790-604-10151.50 ppb
2019-05-094790-605-10451.60 ppb
2019-05-094790-606-0835ND
2019-05-094790-607-10301.10 ppb
2019-05-094790-608-09351.10 ppb
2019-08-154790-601-0805ND
2019-08-154790-602-0725ND
2019-08-154790-603-0850ND
2019-08-154790-604-1200ND
2019-08-154790-605-1125ND
2019-08-154790-606-0745ND
2019-08-154790-607-1140ND
2019-08-154790-608-0830ND
2019-11-144790-601-0810ND
2019-11-144790-602-0735ND
2019-11-144790-603-0850ND
2019-11-144790-604-1135ND
2019-11-144790-605-1110ND
2019-11-144790-606-0750ND
2019-11-144790-607-1125ND
2019-11-144790-608-0825ND