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EWG's Tap Water Database — 2019 UPDATE

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Dibromoacetic acid

Rincon Del Diablo MWD(ID-1)

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.

 

81

Samples

0

Samples exceeding legal limit (MCL)

46

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20121.69 ppb129ND - 3.30 ppb
20130.631 ppb167ND - 3.30 ppb
20141.76 ppb103ND - 7.30 ppb
20150.911 ppb1810ND - 2.60 ppb
20160.754 ppb137ND - 1.60 ppb
20171.59 ppb1210ND - 2.80 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
2012-05-033761-901-0936ND
2012-05-033761-903-09231.10 ppb
2012-05-033761-902-08392.00 ppb
2012-05-033761-900-09071.50 ppb
2012-08-223761-900-1022ND
2012-08-223761-901-1118ND
2012-08-223761-903-11041.70 ppb
2012-08-223761-902-09301.60 ppb
2012-11-073761-901-09373.10 ppb
2012-11-073761-902-08003.10 ppb
2012-11-073761-900-09002.90 ppb
2012-11-073761-903-09303.30 ppb
2013-02-133761-901-0952ND
2013-02-133761-903-12001.000 ppb
2013-02-133761-902-13293.30 ppb
2013-02-133761-900-12331.000 ppb
2013-05-144790-900-1135ND
2013-05-144790-902-1238ND
2013-05-144790-901-1100ND
2013-05-144790-903-1053ND
2013-08-064790-900-0856ND
2013-08-064790-901-09341.20 ppb
2013-08-064790-903-09201.20 ppb
2013-08-064790-902-08231.30 ppb
2013-11-054790-903-1000ND
2013-11-054790-900-1020ND
2013-11-054790-901-0940ND
2013-11-054790-902-11001.10 ppb
2014-02-114790-903-1012ND
2014-02-114790-900-0907ND
2014-02-114790-902-0811ND
2014-02-114790-901-0947ND
2014-08-054790-902-07403.60 ppb
2014-08-054790-903-0930ND
2014-08-054790-901-08106.70 ppb
2014-08-054790-900-08337.30 ppb
2014-08-054790-900-0848ND
2014-08-054790-901-0945ND
2015-02-034790-900-1113ND
2015-02-034790-902-0820ND
2015-02-034790-901-1007ND
2015-02-034790-903-1023ND
2015-05-124790-901-10302.40 ppb
2015-05-124790-902-08351.30 ppb
2015-05-124790-900-09301.50 ppb
2015-05-124790-903-10152.00 ppb
2015-08-044790-900-1150ND
2015-08-044790-902-12251.20 ppb
2015-08-044790-901-1128ND
2015-08-044790-903-11141.20 ppb
2015-11-034790-903-09451.10 ppb
2015-11-034790-900-11152.60 ppb
2015-11-034790-901-10001.10 ppb
2015-11-034790-902-0815ND
2015-11-034790-900-0910ND
2015-11-034790-901-10402.00 ppb
2016-02-024790-900-0928ND
2016-05-034790-900-1100ND
2016-05-034790-901-0931ND
2016-05-034790-902-1135ND
2016-05-034790-903-0917ND
2016-08-024790-903-11131.40 ppb
2016-08-024790-900-10081.40 ppb
2016-08-024790-902-0908ND
2016-08-024790-901-10531.40 ppb
2016-11-014790-902-08401.20 ppb
2016-11-014790-901-10251.60 ppb
2016-11-014790-900-09301.40 ppb
2016-11-014790-903-09251.40 ppb
2017-05-024790-901-09312.00 ppb
2017-05-024790-902-1050ND
2017-05-024790-900-10161.60 ppb
2017-05-024790-903-09552.00 ppb
2017-08-084790-903-10201.50 ppb
2017-08-084790-901-10361.90 ppb
2017-08-084790-900-09381.80 ppb
2017-08-084790-902-09021.60 ppb
2017-11-074790-902-11202.20 ppb
2017-11-074790-903-09102.80 ppb
2017-11-074790-901-0855ND
2017-11-074790-900-09501.70 ppb