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EWG's Tap Water Database — 2021 UPDATE

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Dibromoacetic acid

Golden State Water Company (GSWC) - San Dimas

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

 

193

Samples

0

Samples exceeding legal limit (MCL)

166

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20143.13 ppb3331ND - 5.20 ppb
20152.63 ppb3226ND - 7.90 ppb
20163.94 ppb3231ND - 9.80 ppb
20171.86 ppb3224ND - 5.40 ppb
20183.00 ppb32321.20 ppb - 7.00 ppb
20191.13 ppb3222ND - 5.50 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
2014-01-249588-800-08504.10 ppb
2014-01-249588-801-07404.80 ppb
2014-01-249588-802-07305.20 ppb
2014-01-249588-803-08104.90 ppb
2014-01-249588-804-10455.00 ppb
2014-01-249588-805-07553.80 ppb
2014-01-249588-806-08254.70 ppb
2014-01-249588-807-1030ND
2014-04-239588-800-08253.50 ppb
2014-04-239588-801-07353.70 ppb
2014-04-239588-802-07252.80 ppb
2014-04-239588-803-07553.50 ppb
2014-04-239588-804-10052.90 ppb
2014-04-239588-805-07452.20 ppb
2014-04-239588-806-08051.70 ppb
2014-04-239588-807-09503.60 ppb
2014-07-249588-800-10553.60 ppb
2014-07-249588-801-11253.10 ppb
2014-07-249588-802-13353.90 ppb
2014-07-249588-803-11403.10 ppb
2014-07-249588-804-14003.60 ppb
2014-07-249588-805-11103.80 ppb
2014-07-249588-806-11553.20 ppb
2014-07-249588-807-12103.00 ppb
2014-10-279588-800-08452.80 ppb
2014-10-279588-801-07452.40 ppb
2014-10-279588-802-07351.40 ppb
2014-10-279588-803-08101.90 ppb
2014-10-279588-804-10453.30 ppb
2014-10-279588-805-07553.30 ppb
2014-10-279588-806-08201.60 ppb
2014-10-279588-807-1025ND
2014-11-189588-807-09402.80 ppb
2015-01-289588-800-08302.50 ppb
2015-01-289588-801-07403.00 ppb
2015-01-289588-802-07306.60 ppb
2015-01-289588-803-08003.50 ppb
2015-01-289588-804-10307.90 ppb
2015-01-289588-805-07502.90 ppb
2015-01-289588-806-08103.20 ppb
2015-01-289588-807-09553.30 ppb
2015-04-239588-800-08103.50 ppb
2015-04-239588-801-07152.80 ppb
2015-04-239588-802-07053.70 ppb
2015-04-239588-803-07353.20 ppb
2015-04-239588-804-09553.80 ppb
2015-04-239588-805-07251.20 ppb
2015-04-239588-806-07455.00 ppb
2015-04-239588-807-0940ND
2015-07-279588-800-1025ND
2015-07-279588-801-09205.20 ppb
2015-07-279588-802-09101.10 ppb
2015-07-279588-803-09451.90 ppb
2015-07-279588-804-12101.10 ppb
2015-07-279588-805-09351.70 ppb
2015-07-279588-806-10004.40 ppb
2015-07-279588-807-1150ND
2015-10-289588-800-0930ND
2015-10-289588-801-08303.90 ppb
2015-10-289588-802-08151.20 ppb
2015-10-289588-803-08553.50 ppb
2015-10-289588-804-08002.10 ppb
2015-10-289588-805-0840ND
2015-10-289588-806-09102.00 ppb
2015-10-289588-807-1055ND
2016-01-259588-800-08404.50 ppb
2016-01-259588-801-07401.10 ppb
2016-01-259588-802-07259.00 ppb
2016-01-259588-803-08105.00 ppb
2016-01-259588-804-12409.80 ppb
2016-01-259588-805-08004.70 ppb
2016-01-259588-806-08204.30 ppb
2016-01-259588-807-12201.90 ppb
2016-04-279588-800-08354.20 ppb
2016-04-279588-801-07404.60 ppb
2016-04-279588-802-07306.40 ppb
2016-04-279588-803-08053.70 ppb
2016-04-279588-804-10405.00 ppb
2016-04-279588-805-0750ND
2016-04-279588-806-08153.50 ppb
2016-04-279588-807-10155.70 ppb
2016-07-259588-800-08305.80 ppb
2016-07-259588-801-07253.50 ppb
2016-07-259588-802-07101.20 ppb
2016-07-259588-803-07501.20 ppb
2016-07-259588-804-12105.20 ppb
2016-07-259588-805-07454.80 ppb
2016-07-259588-806-08004.50 ppb
2016-07-259588-807-11404.90 ppb
2016-10-259588-800-08302.20 ppb
2016-10-259588-801-07302.90 ppb
2016-10-259588-802-07202.90 ppb
2016-10-259588-803-08002.90 ppb
2016-10-259588-804-12303.20 ppb
2016-10-259588-805-07502.90 ppb
2016-10-259588-806-08101.70 ppb
2016-10-259588-807-12052.80 ppb
2017-01-279588-800-08153.60 ppb
2017-01-279588-801-07255.10 ppb
2017-01-279588-802-07151.70 ppb
2017-01-279588-803-07454.90 ppb
2017-01-279588-804-10153.00 ppb
2017-01-279588-805-07352.80 ppb
2017-01-279588-806-07555.40 ppb
2017-01-279588-807-09554.10 ppb
2017-04-259588-800-0830ND
2017-04-259588-801-0720ND
2017-04-259588-802-0710ND
2017-04-259588-803-0800ND
2017-04-259588-804-1225ND
2017-04-259588-805-0745ND
2017-04-259588-806-0810ND
2017-04-259588-807-1200ND
2017-07-259588-800-14201.50 ppb
2017-07-259588-801-15051.60 ppb
2017-07-259588-802-15201.50 ppb
2017-07-259588-803-14501.70 ppb
2017-07-259588-804-15451.30 ppb
2017-07-259588-805-14351.60 ppb
2017-07-259588-806-14052.00 ppb
2017-07-259588-807-13551.40 ppb
2017-10-279588-800-08302.50 ppb
2017-10-279588-801-07351.90 ppb
2017-10-279588-802-07251.80 ppb
2017-10-279588-803-08001.80 ppb
2017-10-279588-804-10251.90 ppb
2017-10-279588-805-07453.00 ppb
2017-10-279588-806-08101.80 ppb
2017-10-279588-807-10101.70 ppb
2018-01-269588-800-08405.00 ppb
2018-01-269588-801-07305.20 ppb
2018-01-269588-802-07205.30 ppb
2018-01-269588-803-08005.10 ppb
2018-01-269588-804-10405.70 ppb
2018-01-269588-805-07455.70 ppb
2018-01-269588-806-08155.20 ppb
2018-01-269588-807-10204.00 ppb
2018-04-259588-800-08301.60 ppb
2018-04-259588-801-07201.60 ppb
2018-04-259588-802-07101.60 ppb
2018-04-259588-803-07551.20 ppb
2018-04-259588-804-11501.60 ppb
2018-04-259588-805-07401.40 ppb
2018-04-259588-806-08101.20 ppb
2018-04-259588-807-11351.30 ppb
2018-07-279588-800-07304.20 ppb
2018-07-279588-801-06452.90 ppb
2018-07-279588-802-06352.00 ppb
2018-07-279588-803-07052.30 ppb
2018-07-279588-804-09103.50 ppb
2018-07-279588-805-06551.70 ppb
2018-07-279588-806-07152.70 ppb
2018-07-279588-807-08553.00 ppb
2018-10-269588-800-08557.00 ppb
2018-10-269588-801-07402.20 ppb
2018-10-269588-802-07301.70 ppb
2018-10-269588-803-08151.60 ppb
2018-10-269588-804-11003.00 ppb
2018-10-269588-805-08051.40 ppb
2018-10-269588-806-08251.40 ppb
2018-10-269588-807-10452.60 ppb
2019-01-259588-800-09255.50 ppb
2019-01-259588-801-0805ND
2019-01-259588-802-07501.40 ppb
2019-01-259588-803-0845ND
2019-01-259588-804-11451.000 ppb
2019-01-259588-805-0835ND
2019-01-259588-806-0900ND
2019-01-259588-807-11302.20 ppb
2019-04-249588-800-0815ND
2019-04-249588-801-07101.40 ppb
2019-04-249588-802-07001.30 ppb
2019-04-249588-803-07351.40 ppb
2019-04-249588-804-10001.60 ppb
2019-04-249588-805-0720ND
2019-04-249588-806-07501.40 ppb
2019-04-249588-807-09452.30 ppb
2019-07-249588-800-0825ND
2019-07-249588-801-07301.10 ppb
2019-07-249588-802-07151.40 ppb
2019-07-249588-803-07501.10 ppb
2019-07-249588-804-10201.20 ppb
2019-07-249588-805-0740ND
2019-07-249588-806-0800ND
2019-07-249588-807-1005ND
2019-10-259588-800-08201.10 ppb
2019-10-259588-801-07101.30 ppb
2019-10-259588-802-07001.30 ppb
2019-10-259588-803-07401.40 ppb
2019-10-259588-804-11551.90 ppb
2019-10-259588-805-07301.70 ppb
2019-10-259588-806-07501.50 ppb
2019-10-259588-807-11351.50 ppb