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EWG's Tap Water Database — 2021 UPDATE

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Monobromoacetic acid

City of Sunnyvale

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

 

178

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20140.525 ppb3211ND - 2.40 ppb
20150.325 ppb329ND - 1.30 ppb
20160.303 ppb327ND - 1.70 ppb
2017ND320ND
20180.325 ppb245ND - 1.90 ppb
20190.0846 ppb262ND - 1.10 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
2014-03-055810-900-10452.10 ppb
2014-03-055810-901-08151.40 ppb
2014-03-055810-902-0738ND
2014-03-055810-903-10332.40 ppb
2014-03-055810-904-11102.20 ppb
2014-03-055810-905-11001.40 ppb
2014-03-055810-906-1020ND
2014-03-055810-907-0715ND
2014-05-145810-900-1228ND
2014-05-145810-901-1140ND
2014-05-145810-902-1106ND
2014-05-145810-903-1218ND
2014-05-145810-904-1251ND
2014-05-145810-905-1242ND
2014-05-145810-906-1205ND
2014-05-145810-907-1054ND
2014-08-065810-900-1115ND
2014-08-065810-901-1020ND
2014-08-065810-902-0950ND
2014-08-065810-903-11001.20 ppb
2014-08-065810-904-11451.10 ppb
2014-08-065810-905-11251.20 ppb
2014-08-065810-906-1045ND
2014-08-065810-907-0920ND
2014-11-125810-900-09551.10 ppb
2014-11-125810-901-0925ND
2014-11-125810-902-0908ND
2014-11-125810-903-0945ND
2014-11-125810-904-10411.30 ppb
2014-11-125810-905-10171.40 ppb
2014-11-125810-906-1056ND
2014-11-125810-907-0850ND
2015-03-105810-900-10521.10 ppb
2015-03-105810-901-10051.20 ppb
2015-03-105810-902-0955ND
2015-03-105810-903-10251.30 ppb
2015-03-105810-904-11201.10 ppb
2015-03-105810-905-11131.30 ppb
2015-03-105810-906-1038ND
2015-03-105810-907-0930ND
2015-05-055810-900-1025ND
2015-05-055810-901-11521.10 ppb
2015-05-055810-902-1210ND
2015-05-055810-903-1050ND
2015-05-055810-904-1303ND
2015-05-055810-905-1150ND
2015-05-055810-906-1110ND
2015-05-055810-907-1235ND
2015-08-195810-900-1235ND
2015-08-195810-901-1130ND
2015-08-195810-902-1035ND
2015-08-195810-903-1210ND
2015-08-195810-904-1300ND
2015-08-195810-905-1245ND
2015-08-195810-906-1155ND
2015-08-195810-907-1010ND
2015-10-285810-900-12081.10 ppb
2015-10-285810-901-0901ND
2015-10-285810-902-0845ND
2015-10-285810-903-1035ND
2015-10-285810-904-12251.10 ppb
2015-10-285810-905-12171.10 ppb
2015-10-285810-906-1047ND
2015-10-285810-907-0825ND
2016-03-025810-900-1035ND
2016-03-025810-901-0843ND
2016-03-025810-902-0915ND
2016-03-025810-903-1020ND
2016-03-025810-904-1100ND
2016-03-025810-905-1045ND
2016-03-025810-906-0940ND
2016-03-025810-907-0810ND
2016-05-045810-900-1020ND
2016-05-045810-901-09301.50 ppb
2016-05-045810-902-0912ND
2016-05-045810-903-10051.70 ppb
2016-05-045810-904-10501.30 ppb
2016-05-045810-905-10301.000 ppb
2016-05-045810-906-0955ND
2016-05-045810-907-0900ND
2016-08-105810-900-0900ND
2016-08-105810-901-1010ND
2016-08-105810-902-1110ND
2016-08-105810-903-0920ND
2016-08-105810-904-0810ND
2016-08-105810-905-0827ND
2016-08-105810-906-0938ND
2016-08-105810-907-1040ND
2016-10-125810-900-1020ND
2016-10-125810-901-09201.60 ppb
2016-10-125810-902-0849ND
2016-10-125810-903-09451.30 ppb
2016-10-125810-904-1100ND
2016-10-125810-905-10351.30 ppb
2016-10-125810-906-1005ND
2016-10-125810-907-0825ND
2017-02-155810-900-0840ND
2017-02-155810-901-0955ND
2017-02-155810-902-1050ND
2017-02-155810-903-0900ND
2017-02-155810-904-0810ND
2017-02-155810-905-0825ND
2017-02-155810-906-0915ND
2017-02-155810-907-1020ND
2017-05-245810-900-1100ND
2017-05-245810-901-0950ND
2017-05-245810-902-0935ND
2017-05-245810-903-1050ND
2017-05-245810-904-1130ND
2017-05-245810-905-1115ND
2017-05-245810-906-1031ND
2017-05-245810-907-0915ND
2017-08-235810-900-1130ND
2017-08-235810-901-1025ND
2017-08-235810-902-1000ND
2017-08-235810-903-1115ND
2017-08-235810-904-1155ND
2017-08-235810-905-1145ND
2017-08-235810-906-1055ND
2017-08-235810-907-0940ND
2017-11-155810-900-0955ND
2017-11-155810-901-1055ND
2017-11-155810-902-1120ND
2017-11-155810-903-1010ND
2017-11-155810-904-0915ND
2017-11-155810-905-0935ND
2017-11-155810-906-1025ND
2017-11-155810-907-1145ND
2018-02-215810-900-1005ND
2018-02-215810-901-1047ND
2018-02-215810-902-11041.50 ppb
2018-02-215810-904-09551.40 ppb
2018-02-215810-905-09301.90 ppb
2018-02-215810-907-11171.90 ppb
2018-02-285810-903-09361.10 ppb
2018-02-285810-906-0948ND
2018-08-155810-900-0935ND
2018-08-155810-901-1016ND
2018-08-155810-902-1035ND
2018-08-155810-903-1002ND
2018-08-155810-904-0930ND
2018-08-155810-905-0908ND
2018-08-155810-906-0948ND
2018-08-155810-907-1050ND
2018-11-145810-900-1005ND
2018-11-145810-901-0916ND
2018-11-145810-902-0900ND
2018-11-145810-903-0939ND
2018-11-145810-904-1030ND
2018-11-145810-905-1012ND
2018-11-145810-906-0947ND
2018-11-145810-907-0830ND
2019-01-305810-900-1020ND
2019-01-305810-901-09101.10 ppb
2019-01-305810-902-0848ND
2019-01-305810-903-0945ND
2019-01-305810-904-10501.10 ppb
2019-01-305810-905-1035ND
2019-01-305810-906-1000ND
2019-01-305810-907-0835ND
2019-05-225810-900-0915ND
2019-05-225810-901-0845ND
2019-09-115810-900-0910ND
2019-09-115810-901-0835ND
2019-09-115810-902-0820ND
2019-09-115810-903-0955ND
2019-09-115810-904-0940ND
2019-09-115810-905-0930ND
2019-09-115810-906-1010ND
2019-09-115810-907-0800ND
2019-11-205810-900-0915ND
2019-11-205810-901-0850ND
2019-11-205810-902-0815ND
2019-11-205810-903-0948ND
2019-11-205810-904-0933ND
2019-11-205810-905-0920ND
2019-11-205810-906-0958ND
2019-11-205810-907-0830ND