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EWG's Tap Water Database — 2021 UPDATE

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Monobromoacetic acid

San Luis Obispo Water Department

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

 

100

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20140.125 ppb161ND - 2.00 ppb
20150.500 ppb164ND - 2.00 ppb
20161.38 ppb16161.000 ppb - 2.00 ppb
20170.200 ppb204ND - 1.000 ppb
20180.188 ppb163ND - 1.000 ppb
20190.563 ppb166ND - 2.00 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
2014-02-115867-020-1110ND
2014-02-115867-018-1130ND
2014-02-115867-019-1100ND
2014-02-115867-021-1045ND
2014-05-125867-021-1130ND
2014-05-125867-020-1145ND
2014-05-125867-019-1155ND
2014-05-125867-018-1215ND
2014-08-115867-021-1340ND
2014-08-115867-020-1400ND
2014-08-115867-019-1415ND
2014-08-115867-018-1320ND
2014-11-135867-020-1430ND
2014-11-135867-019-1445ND
2014-11-135867-021-13452.00 ppb
2014-11-135867-018-1400ND
2015-02-125867-021-1535ND
2015-02-125867-020-1505ND
2015-02-125867-019-1450ND
2015-02-125867-018-1520ND
2015-05-145867-021-1035ND
2015-05-145867-020-1015ND
2015-05-145867-018-1050ND
2015-05-145867-019-1000ND
2015-08-125867-019-0900ND
2015-08-125867-018-0840ND
2015-08-125867-021-0825ND
2015-08-125867-020-0915ND
2015-11-105867-019-13152.00 ppb
2015-11-105867-018-12452.00 ppb
2015-11-105867-021-13002.00 ppb
2015-11-105867-020-13252.00 ppb
2016-02-085867-019-14352.00 ppb
2016-02-085867-018-15001.000 ppb
2016-02-085867-021-15202.00 ppb
2016-02-085867-020-14502.00 ppb
2016-05-115867-019-16002.00 ppb
2016-05-115867-018-15151.000 ppb
2016-05-115867-021-15301.000 ppb
2016-05-115867-020-15451.000 ppb
2016-08-085867-019-14402.00 ppb
2016-08-085867-018-14101.000 ppb
2016-08-085867-021-14252.00 ppb
2016-08-085867-020-14551.000 ppb
2016-11-145867-018-15001.000 ppb
2016-11-145867-020-15251.000 ppb
2016-11-145867-021-15501.000 ppb
2016-11-145867-019-15351.000 ppb
2017-02-155867-019-1625ND
2017-02-155867-018-1550ND
2017-02-155867-020-1615ND
2017-02-155867-021-1645ND
2017-05-105867-021-15251.000 ppb
2017-05-105867-018-15101.000 ppb
2017-05-105867-019-14401.000 ppb
2017-05-105867-020-14501.000 ppb
2017-07-105867-021-1105ND
2017-07-105867-019-1015ND
2017-07-105867-018-1045ND
2017-07-105867-020-1025ND
2017-08-145867-021-1100ND
2017-08-145867-018-1050ND
2017-08-145867-020-1030ND
2017-08-145867-019-1020ND
2017-11-075867-020-1515ND
2017-11-075867-021-1555ND
2017-11-075867-018-1540ND
2017-11-075867-019-1525ND
2018-02-145867-020-1450ND
2018-02-145867-021-1520ND
2018-02-145867-018-1505ND
2018-02-145867-019-1435ND
2018-05-085867-021-1450ND
2018-05-085867-018-1435ND
2018-05-085867-019-1405ND
2018-05-085867-020-1415ND
2018-08-105867-020-1330ND
2018-08-105867-021-12251.000 ppb
2018-08-105867-019-13151.000 ppb
2018-08-105867-018-1245ND
2018-11-145867-021-1400ND
2018-11-145867-020-1345ND
2018-11-145867-019-1330ND
2018-11-145867-018-14151.000 ppb
2019-02-125867-021-11402.00 ppb
2019-02-125867-018-11551.000 ppb
2019-02-125867-019-11102.00 ppb
2019-02-125867-020-11152.00 ppb
2019-05-165867-018-14001.000 ppb
2019-05-165867-020-1230ND
2019-05-165867-021-1250ND
2019-05-165867-019-12151.000 ppb
2019-08-135867-020-1440ND
2019-08-135867-018-1518ND
2019-08-135867-021-1500ND
2019-08-135867-019-1430ND
2019-11-125867-020-1410ND
2019-11-125867-019-1355ND
2019-11-125867-018-1445ND
2019-11-125867-021-1430ND