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EWG's Tap Water Database — 2021 UPDATE

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Dibromoacetic acid

Western MWD (Arlington)

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

 

23

Samples

0

Samples exceeding legal limit (MCL)

1

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20141.08 ppb41ND - 4.30 ppb
2015ND40ND
2016ND30ND
2017ND40ND
2018ND40ND
2019ND40ND

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
2014-02-044790-013-1235ND
2014-05-064790-013-1300ND
2014-08-074790-013-11554.30 ppb
2014-11-044790-013-1330ND
2015-02-094790-013-1340ND
2015-05-064790-013-0900ND
2015-08-044790-013-1045ND
2015-11-034790-013-0930ND
2016-05-044790-013-1200ND
2016-08-024790-013-1315ND
2016-11-014790-013-1440ND
2017-02-074790-013-1445ND
2017-08-034790-013-1331ND
2017-09-054790-013-1355ND
2017-11-074790-013-1250ND
2018-02-214790-013-1500ND
2018-05-144790-013-1330ND
2018-08-284790-013-1410ND
2018-11-064790-013-1145ND
2019-02-134790-013-1000ND
2019-05-074790-013-1200ND
2019-08-134790-013-0925ND
2019-11-044790-013-1400ND