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EWG's Tap Water Database — 2021 UPDATE

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Dibromoacetic acid

Cal/Am Water Company - San Marino

Dibromoacetic 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

 

96

Samples

0

Samples exceeding legal limit (MCL)

41

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20140.600 ppb165ND - 2.80 ppb
20150.963 ppb168ND - 2.60 ppb
20161.58 ppb169ND - 4.80 ppb
20170.444 ppb165ND - 2.20 ppb
20180.400 ppb165ND - 1.60 ppb
20191.16 ppb169ND - 3.40 ppb

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 0.04 ppb

The EWG Health Guideline of 0.04 ppb for dibromoacetic acid was defined in a peer-reviewed scientific study by EWG and represents a on-in-a-million lifetime cancer risk level. This health guideline protects against cancer.

ppb = parts per billion

All test results

Date Lab ID Result
2014-02-219588-802-0835ND
2014-02-219588-800-0905ND
2014-02-219588-801-0920ND
2014-02-219588-803-0850ND
2014-05-239588-803-09102.30 ppb
2014-05-239588-802-08552.20 ppb
2014-05-239588-801-09401.10 ppb
2014-05-239588-800-0925ND
2014-08-229588-803-0855ND
2014-08-229588-802-08401.20 ppb
2014-08-229588-801-0925ND
2014-08-229588-800-09102.80 ppb
2014-11-219588-802-0815ND
2014-11-219588-801-0900ND
2014-11-219588-803-0830ND
2014-11-219588-800-0845ND
2015-02-259588-803-14551.30 ppb
2015-02-259588-802-14351.30 ppb
2015-02-259588-801-1540ND
2015-02-259588-800-1520ND
2015-05-269588-803-1030ND
2015-05-269588-802-1015ND
2015-05-269588-800-1045ND
2015-05-269588-801-1105ND
2015-08-249588-800-08552.40 ppb
2015-08-249588-803-08401.20 ppb
2015-08-249588-802-0830ND
2015-08-249588-801-0905ND
2015-11-239588-801-09002.40 ppb
2015-11-239588-800-08451.60 ppb
2015-11-239588-803-08302.60 ppb
2015-11-239588-802-08152.60 ppb
2016-02-229588-801-0920ND
2016-02-229588-800-0930ND
2016-02-229588-803-0945ND
2016-02-229588-802-1000ND
2016-05-239588-801-0915ND
2016-05-239588-800-0905ND
2016-05-239588-803-08501.80 ppb
2016-05-239588-802-0840ND
2016-08-229588-803-09004.60 ppb
2016-08-229588-801-09252.30 ppb
2016-08-229588-800-09102.80 ppb
2016-08-229588-802-08454.80 ppb
2016-11-219588-803-09402.30 ppb
2016-11-219588-801-09152.10 ppb
2016-11-219588-802-09502.30 ppb
2016-11-219588-800-09302.20 ppb
2017-02-249588-802-09501.10 ppb
2017-02-249588-803-1000ND
2017-02-249588-801-1030ND
2017-02-249588-800-10151.20 ppb
2017-05-229588-802-1005ND
2017-05-229588-800-1030ND
2017-05-229588-801-1040ND
2017-05-229588-803-1020ND
2017-08-229588-800-08552.20 ppb
2017-08-229588-801-09051.60 ppb
2017-08-229588-803-0840ND
2017-08-229588-802-0830ND
2017-11-219588-803-08151.000 ppb
2017-11-219588-800-0835ND
2017-11-219588-802-0800ND
2017-11-219588-801-0855ND
2018-02-209588-803-0950ND
2018-02-209588-800-1005ND
2018-02-209588-801-1020ND
2018-02-209588-802-0940ND
2018-05-229588-801-08501.000 ppb
2018-05-229588-802-08101.20 ppb
2018-05-229588-803-08201.30 ppb
2018-05-229588-800-08351.30 ppb
2018-08-279588-801-0915ND
2018-08-279588-803-0940ND
2018-08-279588-802-0955ND
2018-08-279588-800-09301.60 ppb
2018-11-269588-801-1120ND
2018-11-269588-803-1055ND
2018-11-269588-802-1040ND
2018-11-269588-800-1105ND
2019-02-229588-800-1120ND
2019-02-229588-802-1140ND
2019-02-229588-801-1110ND
2019-02-229588-803-1130ND
2019-05-249588-800-1115ND
2019-05-249588-802-1045ND
2019-05-249588-803-1100ND
2019-05-249588-801-11303.40 ppb
2019-08-269588-803-09551.40 ppb
2019-08-269588-802-09451.50 ppb
2019-08-269588-800-10051.40 ppb
2019-08-269588-801-10251.40 ppb
2019-11-219588-803-10351.40 ppb
2019-11-219588-802-10202.80 ppb
2019-11-219588-800-10502.00 ppb
2019-11-219588-801-11103.30 ppb