Menu

EWG's Tap Water Database — 2021 UPDATE

Donate

Dibromoacetic acid

City of Santa Clara

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

 

202

Samples

0

Samples exceeding legal limit (MCL)

72

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013N/A00N/A
20142.73 ppb3214ND - 13.0 ppb
20152.37 ppb269ND - 9.30 ppb
20163.32 ppb4015ND - 18.0 ppb
20171.39 ppb329ND - 7.30 ppb
20181.31 ppb4014ND - 5.80 ppb
20191.90 ppb3211ND - 9.40 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
2014-01-229590-900-10441.10 ppb
2014-01-229590-901-1030ND
2014-01-229590-902-11051.10 ppb
2014-01-229590-903-1015ND
2014-01-229590-904-0935ND
2014-01-229590-905-08343.70 ppb
2014-01-229590-906-08548.30 ppb
2014-01-229590-907-09555.20 ppb
2014-04-239590-900-1025ND
2014-04-239590-901-1010ND
2014-04-239590-902-1040ND
2014-04-239590-903-0955ND
2014-04-239590-904-09101.70 ppb
2014-04-239590-905-083513.0 ppb
2014-04-239590-906-085012.0 ppb
2014-04-239590-907-0930ND
2014-07-239590-900-1340ND
2014-07-239590-901-0905ND
2014-07-239590-902-0945ND
2014-07-239590-903-0845ND
2014-07-239590-904-1005ND
2014-07-239590-905-1025ND
2014-07-239590-906-10459.10 ppb
2014-07-239590-907-11309.80 ppb
2014-10-249590-900-0910ND
2014-10-249590-901-0930ND
2014-10-249590-902-0855ND
2014-10-249590-903-0915ND
2014-10-249590-904-10253.60 ppb
2014-10-249590-905-09356.70 ppb
2014-10-249590-906-09556.50 ppb
2014-10-249590-907-10455.60 ppb
2015-01-219590-900-1215ND
2015-01-219590-901-1142ND
2015-01-219590-902-1126ND
2015-01-219590-903-1150ND
2015-01-219590-904-0948ND
2015-01-219590-905-1003ND
2015-01-219590-906-10268.90 ppb
2015-01-219590-907-09264.30 ppb
2015-04-229590-900-0945ND
2015-04-229590-901-0915ND
2015-04-229590-902-1010ND
2015-04-229590-903-0858ND
2015-04-229590-904-11251.70 ppb
2015-04-229590-905-1410ND
2015-04-229590-906-14357.80 ppb
2015-04-229590-907-1140ND
2015-07-239590-906-09109.30 ppb
2015-07-239590-907-10154.80 ppb
2015-10-219590-900-1321ND
2015-10-219590-901-1125ND
2015-10-219590-902-1340ND
2015-10-219590-903-1108ND
2015-10-219590-904-10228.00 ppb
2015-10-219590-905-0923ND
2015-10-219590-906-09578.50 ppb
2015-10-219590-907-10418.40 ppb
2016-01-209590-900-1000ND
2016-01-209590-901-0935ND
2016-01-209590-902-1020ND
2016-01-209590-903-0915ND
2016-01-209590-904-13568.20 ppb
2016-01-209590-905-104513.0 ppb
2016-01-209590-906-110218.0 ppb
2016-01-209590-907-141316.0 ppb
2016-01-279590-900-1127ND
2016-01-279590-901-1105ND
2016-01-279590-902-1146ND
2016-01-279590-903-1050ND
2016-01-279590-904-1206ND
2016-01-279590-905-1218ND
2016-01-279590-906-12329.40 ppb
2016-01-279590-907-13569.40 ppb
2016-04-209590-900-1021ND
2016-04-209590-901-1002ND
2016-04-209590-902-1043ND
2016-04-209590-903-0942ND
2016-04-209590-904-1159ND
2016-04-209590-905-1106ND
2016-04-209590-906-112912.0 ppb
2016-04-209590-907-122412.0 ppb
2016-07-209590-900-1103ND
2016-07-209590-901-0827ND
2016-07-209590-902-0855ND
2016-07-209590-903-0809ND
2016-07-209590-904-10072.60 ppb
2016-07-209590-905-09253.40 ppb
2016-07-209590-906-09423.40 ppb
2016-07-209590-907-1022ND
2016-10-269590-900-0927ND
2016-10-269590-901-0914ND
2016-10-269590-902-0940ND
2016-10-269590-903-0901ND
2016-10-269590-904-10558.00 ppb
2016-10-269590-905-10032.40 ppb
2016-10-269590-906-10217.60 ppb
2016-10-269590-907-11087.40 ppb
2017-01-259590-900-1128ND
2017-01-259590-901-1201ND
2017-01-259590-902-1054ND
2017-01-259590-903-1146ND
2017-01-259590-904-0959ND
2017-01-259590-905-08524.00 ppb
2017-01-259590-906-09157.30 ppb
2017-01-259590-907-10284.50 ppb
2017-04-199590-900-1200ND
2017-04-199590-901-1048ND
2017-04-199590-902-1219ND
2017-04-199590-903-1035ND
2017-04-199590-904-0952ND
2017-04-199590-905-08381.90 ppb
2017-04-199590-906-09036.50 ppb
2017-04-199590-907-10106.90 ppb
2017-08-029590-900-1053ND
2017-08-029590-901-1038ND
2017-08-029590-902-1118ND
2017-08-029590-903-1025ND
2017-08-029590-904-09384.40 ppb
2017-08-029590-905-08415.20 ppb
2017-08-029590-906-09013.80 ppb
2017-08-029590-907-0953ND
2017-10-189590-900-1014ND
2017-10-189590-901-0929ND
2017-10-189590-902-0959ND
2017-10-189590-903-0914ND
2017-10-189590-904-1144ND
2017-10-189590-905-1155ND
2017-10-189590-906-1253ND
2017-10-189590-907-1212ND
2018-01-299590-900-0755ND
2018-01-299590-901-0843ND
2018-01-299590-902-0817ND
2018-01-299590-903-0832ND
2018-01-299590-904-1008ND
2018-01-299590-905-09092.40 ppb
2018-01-299590-906-09285.20 ppb
2018-01-299590-907-10235.10 ppb
2018-04-179590-900-0942ND
2018-04-179590-901-0924ND
2018-04-179590-902-1014ND
2018-04-179590-903-0910ND
2018-04-179590-904-1034ND
2018-04-179590-905-1048ND
2018-04-179590-906-11071.90 ppb
2018-04-179590-907-11352.00 ppb
2018-04-269590-900-0940ND
2018-04-269590-901-0849ND
2018-04-269590-902-10032.20 ppb
2018-04-269590-903-0835ND
2018-04-269590-904-11011.80 ppb
2018-04-269590-905-1026ND
2018-04-269590-906-10424.80 ppb
2018-04-269590-907-1115ND
2018-07-259590-900-0900ND
2018-07-259590-901-0848ND
2018-07-259590-902-0915ND
2018-07-259590-903-0838ND
2018-07-259590-904-10153.60 ppb
2018-07-259590-905-0939ND
2018-07-259590-906-09543.60 ppb
2018-07-259590-907-10273.20 ppb
2018-10-179590-900-0930ND
2018-10-179590-901-0904ND
2018-10-179590-902-0946ND
2018-10-179590-903-0850ND
2018-10-179590-904-10075.00 ppb
2018-10-179590-905-10195.80 ppb
2018-10-179590-906-10545.80 ppb
2018-10-179590-907-1117ND
2019-01-169590-900-0957ND
2019-01-169590-901-0934ND
2019-01-169590-902-1016ND
2019-01-169590-903-0924ND
2019-01-169590-904-07416.30 ppb
2019-01-169590-905-07539.40 ppb
2019-01-169590-906-08099.00 ppb
2019-01-169590-907-0852ND
2019-04-179590-900-0934ND
2019-04-179590-901-0918ND
2019-04-179590-902-09491.90 ppb
2019-04-179590-903-09061.10 ppb
2019-04-179590-904-1012ND
2019-04-179590-905-1028ND
2019-04-179590-906-10557.10 ppb
2019-04-179590-907-11197.50 ppb
2019-07-159590-900-1116ND
2019-07-159590-901-1056ND
2019-07-159590-902-1129ND
2019-07-159590-903-1040ND
2019-07-159590-904-09495.70 ppb
2019-07-159590-905-10095.90 ppb
2019-07-159590-906-09265.50 ppb
2019-07-159590-907-0843ND
2019-10-159590-900-0814ND
2019-10-159590-901-0758ND
2019-10-159590-902-0834ND
2019-10-159590-903-0745ND
2019-10-159590-904-1017ND
2019-10-159590-905-0941ND
2019-10-159590-906-09581.40 ppb
2019-10-159590-907-1028ND