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EWG's Tap Water Database — 2021 UPDATE

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Dibromoacetic acid

Port Townsend City Of

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

 

86

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2014ND60ND
2015ND160ND
2016ND160ND
2017ND160ND
2018ND160ND
2019ND160ND

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
2014-02-1807303ND
2014-02-1807304ND
2014-08-0634523ND
2014-08-0634524ND
2014-11-0549760ND
2014-11-0549759ND
2015-02-0405322ND
2015-02-0405321ND
2015-02-1707120ND
2015-02-1707119ND
2015-05-1822636ND
2015-05-1822637ND
2015-05-1822635ND
2015-05-1822634ND
2015-08-1137487ND
2015-08-1137488ND
2015-08-1137489ND
2015-08-1137486ND
2015-11-0453305ND
2015-11-0453306ND
2015-11-0453304ND
2015-11-0453303ND
2016-02-02ND
2016-02-02ND
2016-02-02ND
2016-02-02ND
2016-05-04ND
2016-05-04ND
2016-05-04ND
2016-05-04ND
2016-08-02ND
2016-08-02ND
2016-08-02ND
2016-08-02ND
2016-11-08ND
2016-11-08ND
2016-11-08ND
2016-11-08ND
2017-02-08ND
2017-02-08ND
2017-02-08ND
2017-02-08ND
2017-05-17ND
2017-05-17ND
2017-05-17ND
2017-05-17ND
2017-08-02ND
2017-08-02ND
2017-08-02ND
2017-08-02ND
2017-11-06ND
2017-11-06ND
2017-11-06ND
2017-11-06ND
2018-02-13ND
2018-02-13ND
2018-02-13ND
2018-02-13ND
2018-05-08ND
2018-05-08ND
2018-05-08ND
2018-05-08ND
2018-08-13ND
2018-08-13ND
2018-08-13ND
2018-08-13ND
2018-11-05ND
2018-11-05ND
2018-11-05ND
2018-11-05ND
2019-02-05ND
2019-02-05ND
2019-02-05ND
2019-02-05ND
2019-05-06ND
2019-05-06ND
2019-05-06ND
2019-05-06ND
2019-08-05ND
2019-08-05ND
2019-08-05ND
2019-08-05ND
2019-10-04ND
2019-11-04ND
2019-11-04ND
2019-11-04ND