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EWG's Tap Water Database — 2021 UPDATE

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Monobromoacetic acid

Cal American Water 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

 

184

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
20140.550 ppb249ND - 1.90 ppb
20150.300 ppb327ND - 1.60 ppb
20161.10 ppb3227ND - 2.90 ppb
20170.1000 ppb323ND - 1.10 ppb
20180.238 ppb325ND - 1.70 ppb
20190.0625 ppb322ND - 1.000 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
2014-05-071225-006-1330ND
2014-05-071225-007-1415ND
2014-05-071225-008-0945ND
2014-05-071225-009-1510ND
2014-05-071225-010-1030ND
2014-05-071225-011-1105ND
2014-05-071225-012-1225ND
2014-05-071225-013-1150ND
2014-08-121225-006-1135ND
2014-08-121225-007-1410ND
2014-08-121225-008-1350ND
2014-08-121225-009-1425ND
2014-08-121225-010-13151.10 ppb
2014-08-121225-011-12101.50 ppb
2014-08-121225-012-10001.70 ppb
2014-08-121225-013-1055ND
2014-11-111225-006-15001.30 ppb
2014-11-111225-007-14001.30 ppb
2014-11-111225-008-13201.90 ppb
2014-11-111225-009-1430ND
2014-11-111225-010-12501.80 ppb
2014-11-111225-011-1230ND
2014-11-111225-012-15451.30 ppb
2014-11-111225-013-15201.30 ppb
2015-02-101225-006-1450ND
2015-02-101225-007-0933ND
2015-02-101225-008-1015ND
2015-02-101225-009-1515ND
2015-02-101225-010-1047ND
2015-02-101225-011-11201.60 ppb
2015-02-101225-012-14251.60 ppb
2015-02-101225-013-1350ND
2015-05-121225-006-1355ND
2015-05-121225-007-1150ND
2015-05-121225-008-1120ND
2015-05-121225-009-1420ND
2015-05-121225-010-1042ND
2015-05-121225-011-1000ND
2015-05-121225-012-1332ND
2015-05-121225-013-1300ND
2015-08-101225-006-1350ND
2015-08-101225-007-1325ND
2015-08-101225-008-10501.10 ppb
2015-08-101225-009-1410ND
2015-08-101225-010-1120ND
2015-08-101225-011-12001.40 ppb
2015-08-101225-012-09451.50 ppb
2015-08-101225-013-1015ND
2015-11-101225-006-11001.10 ppb
2015-11-101225-007-1200ND
2015-11-101225-008-1140ND
2015-11-101225-009-0930ND
2015-11-101225-010-1055ND
2015-11-101225-011-0950ND
2015-11-101225-012-13001.30 ppb
2015-11-101225-013-1200ND
2016-02-091225-006-10001.20 ppb
2016-02-091225-007-11502.90 ppb
2016-02-091225-008-09501.000 ppb
2016-02-091225-009-12101.10 ppb
2016-02-091225-010-10351.10 ppb
2016-02-091225-011-11201.10 ppb
2016-02-091225-012-10401.30 ppb
2016-02-091225-013-13051.10 ppb
2016-05-101225-006-09301.20 ppb
2016-05-101225-007-1030ND
2016-05-101225-008-09501.10 ppb
2016-05-101225-009-11551.000 ppb
2016-05-101225-010-10301.20 ppb
2016-05-101225-011-10551.20 ppb
2016-05-101225-012-1130ND
2016-05-101225-013-11001.80 ppb
2016-08-091225-006-11301.20 ppb
2016-08-091225-007-11001.20 ppb
2016-08-091225-008-10451.40 ppb
2016-08-091225-009-10001.20 ppb
2016-08-091225-010-11201.20 ppb
2016-08-091225-011-09501.20 ppb
2016-08-091225-012-1300ND
2016-08-091225-013-1208ND
2016-11-091225-006-12001.30 ppb
2016-11-091225-007-14451.30 ppb
2016-11-091225-008-13551.60 ppb
2016-11-091225-009-13151.60 ppb
2016-11-091225-010-13401.30 ppb
2016-11-091225-012-10451.20 ppb
2016-11-091225-013-11301.20 ppb
2016-11-111225-011-1010ND
2017-02-081225-006-1000ND
2017-02-081225-007-1300ND
2017-02-081225-008-1040ND
2017-02-081225-009-1050ND
2017-02-081225-010-1100ND
2017-02-081225-011-1200ND
2017-02-081225-012-1100ND
2017-02-081225-013-1315ND
2017-05-091225-006-1110ND
2017-05-091225-007-1330ND
2017-05-091225-008-13001.000 ppb
2017-05-091225-009-1200ND
2017-05-091225-010-1150ND
2017-05-091225-011-11151.10 ppb
2017-05-091225-012-10301.10 ppb
2017-05-091225-013-1030ND
2017-08-081225-006-1100ND
2017-08-081225-007-1130ND
2017-08-081225-008-1300ND
2017-08-081225-009-1030ND
2017-08-081225-010-1145ND
2017-08-081225-011-1100ND
2017-08-081225-012-1200ND
2017-08-081225-013-1000ND
2017-11-091225-006-1245ND
2017-11-091225-007-1435ND
2017-11-091225-008-1409ND
2017-11-091225-009-1300ND
2017-11-091225-010-1352ND
2017-11-091225-011-1337ND
2017-11-091225-012-1317ND
2017-11-091225-013-1315ND
2018-02-061225-006-1000ND
2018-02-061225-007-1100ND
2018-02-061225-008-1130ND
2018-02-061225-009-1030ND
2018-02-061225-010-1100ND
2018-02-061225-011-1200ND
2018-02-061225-012-1200ND
2018-02-061225-013-1015ND
2018-05-081225-006-0900ND
2018-05-081225-007-1100ND
2018-05-081225-008-11001.70 ppb
2018-05-081225-009-09301.50 ppb
2018-05-081225-010-1040ND
2018-05-081225-011-1012ND
2018-05-081225-012-11301.30 ppb
2018-05-081225-013-0950ND
2018-08-081225-006-1030ND
2018-08-081225-007-1130ND
2018-08-081225-008-1110ND
2018-08-081225-009-1100ND
2018-08-081225-010-1135ND
2018-08-081225-011-1155ND
2018-08-081225-012-1300ND
2018-08-081225-013-1040ND
2018-11-141225-006-1355ND
2018-11-141225-007-14551.40 ppb
2018-11-141225-008-1520ND
2018-11-141225-009-1425ND
2018-11-141225-010-1540ND
2018-11-141225-011-15551.70 ppb
2018-11-141225-012-1250ND
2018-11-141225-013-1320ND
2019-02-121225-006-1400ND
2019-02-121225-007-15001.000 ppb
2019-02-121225-008-1420ND
2019-02-121225-009-1430ND
2019-02-121225-010-1500ND
2019-02-121225-011-1440ND
2019-02-121225-012-16001.000 ppb
2019-02-121225-013-1600ND
2019-05-141225-006-1230ND
2019-05-141225-007-1330ND
2019-05-141225-008-1600ND
2019-05-141225-009-1300ND
2019-05-141225-010-1630ND
2019-05-141225-011-1530ND
2019-05-141225-012-1430ND
2019-05-141225-013-1400ND
2019-08-141225-006-1200ND
2019-08-141225-007-1300ND
2019-08-141225-008-1350ND
2019-08-141225-009-1230ND
2019-08-141225-010-1330ND
2019-08-141225-011-1300ND
2019-08-141225-012-1400ND
2019-08-141225-013-1230ND
2019-11-131225-006-1615ND
2019-11-131225-007-1749ND
2019-11-131225-009-1645ND
2019-11-131225-010-1707ND
2019-11-131225-011-1725ND
2019-11-131225-012-1409ND
2019-11-131225-013-1510ND
2019-11-211225-008-1108ND