Menu

EWG's Tap Water Database — 2021 UPDATE

Donate

Dibromoacetic acid

City of San Jose - EVG/EDV/COY

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

 

192

Samples

0

Samples exceeding legal limit (MCL)

155

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013N/A00N/A
20145.34 ppb3229ND - 11.9 ppb
20153.28 ppb3227ND - 12.1 ppb
20162.71 ppb3220ND - 9.00 ppb
20172.71 ppb3220ND - 8.80 ppb
20184.83 ppb3231ND - 8.80 ppb
20193.31 ppb3228ND - 6.10 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
2014-01-149590-900-08055.70 ppb
2014-01-149590-901-08454.10 ppb
2014-01-149590-902-10555.90 ppb
2014-01-149590-903-09423.70 ppb
2014-01-149590-904-11184.30 ppb
2014-01-149590-905-10334.80 ppb
2014-01-149590-906-09154.80 ppb
2014-01-149590-907-10065.90 ppb
2014-04-081610-900-11187.60 ppb
2014-04-081610-901-10471.90 ppb
2014-04-081610-902-08355.90 ppb
2014-04-081610-903-0955ND
2014-04-081610-904-08156.00 ppb
2014-04-081610-905-08567.20 ppb
2014-04-081610-906-1024ND
2014-04-081610-907-092511.9 ppb
2014-07-081610-900-11373.90 ppb
2014-07-081610-901-11206.20 ppb
2014-07-081610-902-090410.00 ppb
2014-07-081610-903-09501.90 ppb
2014-07-081610-904-084311.1 ppb
2014-07-081610-905-09259.30 ppb
2014-07-081610-906-10593.50 ppb
2014-07-081610-907-10158.00 ppb
2014-10-141610-900-08054.70 ppb
2014-10-141610-901-0855ND
2014-10-141610-902-11025.90 ppb
2014-10-141610-903-09304.70 ppb
2014-10-141610-904-11206.50 ppb
2014-10-141610-905-10404.70 ppb
2014-10-141610-906-10154.70 ppb
2014-10-141610-907-09506.20 ppb
2015-01-131610-900-11052.30 ppb
2015-01-131610-901-1042ND
2015-01-131610-902-08404.70 ppb
2015-01-131610-903-0946ND
2015-01-131610-904-08183.80 ppb
2015-01-131610-905-09001.40 ppb
2015-01-131610-906-10162.80 ppb
2015-01-131610-907-09262.70 ppb
2015-04-141610-900-11295.40 ppb
2015-04-141610-901-10501.80 ppb
2015-04-141610-902-08106.80 ppb
2015-04-141610-903-10251.10 ppb
2015-04-141610-904-08457.40 ppb
2015-04-141610-905-09356.40 ppb
2015-04-141610-906-11106.40 ppb
2015-04-141610-907-09565.30 ppb
2015-07-141610-900-10403.60 ppb
2015-07-141610-901-11102.80 ppb
2015-07-141610-902-08357.70 ppb
2015-07-141610-903-09252.20 ppb
2015-07-141610-904-081012.1 ppb
2015-07-141610-905-08552.90 ppb
2015-07-141610-906-10152.60 ppb
2015-07-141610-907-09402.10 ppb
2015-10-131610-900-10201.50 ppb
2015-10-131610-901-0904ND
2015-10-131610-902-12001.70 ppb
2015-10-131610-903-0944ND
2015-10-131610-904-12183.40 ppb
2015-10-131610-905-11351.70 ppb
2015-10-131610-906-0830ND
2015-10-131610-907-10532.40 ppb
2016-01-121610-900-09055.30 ppb
2016-01-121610-901-0840ND
2016-01-121610-902-10598.10 ppb
2016-01-121610-903-08071.000 ppb
2016-01-121610-904-11225.30 ppb
2016-01-121610-905-10303.60 ppb
2016-01-121610-906-0942ND
2016-01-121610-907-10105.10 ppb
2016-04-121610-004-12003.40 ppb
2016-04-121610-900-10493.20 ppb
2016-04-121610-901-10261.60 ppb
2016-04-121610-902-11443.70 ppb
2016-04-121610-903-09301.70 ppb
2016-04-121610-905-11244.20 ppb
2016-04-121610-906-09032.00 ppb
2016-04-121610-907-09543.00 ppb
2016-07-121610-900-0820ND
2016-07-121610-901-08532.70 ppb
2016-07-121610-902-1133ND
2016-07-121610-903-1015ND
2016-07-121610-904-1156ND
2016-07-121610-905-1110ND
2016-07-121610-906-09212.00 ppb
2016-07-121610-907-1042ND
2016-10-111610-900-12568.40 ppb
2016-10-111610-901-1236ND
2016-10-111610-902-10366.00 ppb
2016-10-111610-903-1148ND
2016-10-111610-904-10077.40 ppb
2016-10-111610-905-1107ND
2016-10-111610-906-1217ND
2016-10-111610-907-11269.00 ppb
2017-01-101610-900-0945ND
2017-01-101610-901-0922ND
2017-01-101610-902-10408.80 ppb
2017-01-101610-903-08011.90 ppb
2017-01-101610-904-11096.80 ppb
2017-01-101610-905-10138.20 ppb
2017-01-101610-906-08212.00 ppb
2017-01-101610-907-0854ND
2017-04-111610-900-08257.40 ppb
2017-04-111610-901-08506.30 ppb
2017-04-111610-902-09466.60 ppb
2017-04-111610-903-1125ND
2017-04-111610-904-10105.80 ppb
2017-04-111610-905-10357.40 ppb
2017-04-111610-906-09151.10 ppb
2017-04-111610-907-10586.70 ppb
2017-07-111610-900-08474.80 ppb
2017-07-111610-901-0933ND
2017-07-111610-902-11142.50 ppb
2017-07-111610-903-1018ND
2017-07-111610-904-1126ND
2017-07-111610-905-1100ND
2017-07-111610-906-0958ND
2017-07-111610-907-1044ND
2017-10-111610-900-08101.80 ppb
2017-10-111610-901-08391.80 ppb
2017-10-111610-902-11101.30 ppb
2017-10-111610-903-09352.20 ppb
2017-10-111610-904-1131ND
2017-10-111610-905-1045ND
2017-10-111610-906-09101.80 ppb
2017-10-111610-907-10051.50 ppb
2018-01-091610-900-12506.30 ppb
2018-01-091610-901-12214.40 ppb
2018-01-091610-902-08426.40 ppb
2018-01-091610-903-1116ND
2018-01-091610-904-09254.50 ppb
2018-01-091610-905-10005.80 ppb
2018-01-091610-906-11511.40 ppb
2018-01-091610-907-10417.00 ppb
2018-04-091610-900-08567.10 ppb
2018-04-091610-901-09198.80 ppb
2018-04-091610-902-11005.50 ppb
2018-04-091610-903-10011.80 ppb
2018-04-091610-904-11204.30 ppb
2018-04-091610-905-10417.10 ppb
2018-04-091610-906-09412.30 ppb
2018-04-091610-907-10206.40 ppb
2018-07-101610-900-10274.80 ppb
2018-07-101610-901-10084.80 ppb
2018-07-101610-902-08165.20 ppb
2018-07-101610-903-09253.80 ppb
2018-07-101610-904-08003.30 ppb
2018-07-101610-905-08514.30 ppb
2018-07-101610-906-09481.70 ppb
2018-07-101610-907-09064.90 ppb
2018-10-091610-900-10336.70 ppb
2018-10-091610-901-10016.30 ppb
2018-10-091610-902-08166.00 ppb
2018-10-091610-903-09192.90 ppb
2018-10-091610-904-08306.80 ppb
2018-10-091610-905-08504.70 ppb
2018-10-091610-906-09432.80 ppb
2018-10-091610-907-09056.40 ppb
2019-01-081610-900-08373.00 ppb
2019-01-081610-901-09002.80 ppb
2019-01-081610-902-09405.20 ppb
2019-01-081610-903-10581.30 ppb
2019-01-081610-904-10023.90 ppb
2019-01-081610-905-1142ND
2019-01-081610-906-10291.40 ppb
2019-01-081610-907-11184.90 ppb
2019-04-091610-900-11025.10 ppb
2019-04-091610-901-0816ND
2019-04-091610-902-10186.10 ppb
2019-04-091610-903-0921ND
2019-04-091610-904-10384.10 ppb
2019-04-091610-905-09595.50 ppb
2019-04-091610-906-0841ND
2019-04-091610-907-09405.30 ppb
2019-07-091610-900-08005.10 ppb
2019-07-091610-901-08252.00 ppb
2019-07-091610-902-10255.90 ppb
2019-07-091610-903-09203.50 ppb
2019-07-091610-904-10414.50 ppb
2019-07-091610-905-10065.20 ppb
2019-07-091610-906-08552.10 ppb
2019-07-091610-907-09425.90 ppb
2019-10-081610-900-07493.80 ppb
2019-10-081610-901-08193.60 ppb
2019-10-081610-902-10273.70 ppb
2019-10-081610-903-09201.90 ppb
2019-10-081610-904-10452.10 ppb
2019-10-081610-905-09582.20 ppb
2019-10-081610-906-08592.70 ppb
2019-10-081610-907-09393.20 ppb