Menu

EWG's Tap Water Database — 2021 UPDATE

Donate

Dibromoacetic acid

City of Patterson

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)

54

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013N/A00N/A
20140.500 ppb164ND - 2.00 ppb
20150.750 ppb166ND - 2.00 ppb
20162.13 ppb1614ND - 5.00 ppb
20171.31 ppb1610ND - 4.00 ppb
20180.875 ppb169ND - 2.00 ppb
20191.38 ppb1611ND - 4.00 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
2014-03-195867-902-10042.00 ppb
2014-03-195867-900-0950ND
2014-03-195867-901-07552.00 ppb
2014-03-195867-903-10152.00 ppb
2014-06-175867-903-0818ND
2014-06-175867-902-0750ND
2014-06-175867-901-0712ND
2014-06-175867-900-0727ND
2014-07-155867-903-0813ND
2014-07-155867-902-0804ND
2014-07-155867-901-0732ND
2014-07-155867-900-0749ND
2014-10-075867-902-1001ND
2014-10-075867-901-07502.00 ppb
2014-10-075867-903-1012ND
2014-10-075867-900-0839ND
2015-01-205867-903-0816ND
2015-01-205867-902-08422.00 ppb
2015-01-205867-901-08002.00 ppb
2015-01-205867-900-0911ND
2015-04-145867-903-0854ND
2015-04-145867-902-0833ND
2015-04-145867-900-0819ND
2015-04-145867-901-09102.00 ppb
2015-07-145867-900-0839ND
2015-07-145867-903-0809ND
2015-07-145867-902-08202.00 ppb
2015-07-145867-901-08332.00 ppb
2015-10-135867-901-08092.00 ppb
2015-10-135867-900-0912ND
2015-10-135867-903-0938ND
2015-10-135867-902-0927ND
2016-01-125867-901-09483.00 ppb
2016-01-125867-900-09362.00 ppb
2016-01-125867-903-10005.00 ppb
2016-01-125867-902-09213.00 ppb
2016-04-185867-901-07532.00 ppb
2016-04-185867-900-0810ND
2016-04-185867-903-08402.00 ppb
2016-04-185867-902-08252.00 ppb
2016-07-125867-903-09142.00 ppb
2016-07-125867-901-08543.00 ppb
2016-07-125867-900-08182.00 ppb
2016-07-125867-902-09042.00 ppb
2016-10-185867-903-10431.000 ppb
2016-10-185867-901-10533.00 ppb
2016-10-185867-902-10302.00 ppb
2016-10-195867-900-1126ND
2017-01-105867-902-10022.00 ppb
2017-01-105867-903-10122.00 ppb
2017-01-105867-901-09394.00 ppb
2017-01-105867-900-0921ND
2017-04-115867-902-08182.00 ppb
2017-04-115867-900-0714ND
2017-04-115867-901-07542.00 ppb
2017-04-115867-903-08072.00 ppb
2017-07-115867-900-0830ND
2017-07-115867-901-07152.00 ppb
2017-07-115867-903-0900ND
2017-07-115867-902-0736ND
2017-10-035867-903-09261.000 ppb
2017-10-035867-900-0807ND
2017-10-035867-902-07542.00 ppb
2017-10-035867-901-08212.00 ppb
2018-01-095867-903-10482.00 ppb
2018-01-095867-900-1120ND
2018-01-095867-901-11322.00 ppb
2018-01-095867-902-11032.00 ppb
2018-04-035867-901-07522.00 ppb
2018-04-035867-902-08381.000 ppb
2018-04-035867-903-08501.000 ppb
2018-04-035867-900-0822ND
2018-07-035867-901-07301.000 ppb
2018-07-035867-903-0745ND
2018-07-035867-902-0800ND
2018-07-035867-900-0815ND
2018-10-025867-901-09432.00 ppb
2018-10-025867-903-0810ND
2018-10-025867-902-08381.000 ppb
2018-10-025867-900-1000ND
2019-01-085867-900-0945ND
2019-01-085867-902-10151.000 ppb
2019-01-085867-901-10002.00 ppb
2019-01-085867-903-10302.00 ppb
2019-04-025867-900-0950ND
2019-04-025867-902-10101.000 ppb
2019-04-025867-903-10251.000 ppb
2019-04-025867-901-07532.00 ppb
2019-07-025867-903-0905ND
2019-07-025867-902-0850ND
2019-07-025867-900-0810ND
2019-07-025867-901-08253.00 ppb
2019-10-015867-903-09502.00 ppb
2019-10-015867-902-09252.00 ppb
2019-10-015867-900-09002.00 ppb
2019-10-015867-901-08304.00 ppb