Menu

EWG's Tap Water Database — 2021 UPDATE

Donate

Dibromoacetic acid

King County Water District #20

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)

2

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2013N/A00N/A
2014ND160ND
20150.0676 ppb162ND - 0.569 ppb
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
2014-03-1904991ND
2014-03-1904993ND
2014-03-1904990ND
2014-03-1904992ND
2014-06-1710897ND
2014-06-1710898ND
2014-06-1710896ND
2014-06-1710895ND
2014-09-1517014ND
2014-09-1517015ND
2014-09-1517017ND
2014-09-1517016ND
2014-12-1924433ND
2014-12-1924434ND
2014-12-1924436ND
2014-12-1924435ND
2015-03-1769204ND
2015-03-1769201ND
2015-03-1769203ND
2015-03-1769202ND
2015-06-1518304ND
2015-06-1518303ND
2015-06-1518302ND
2015-06-1518301ND
2015-09-22027030.569 ppb
2015-09-2202701ND
2015-09-2202702ND
2015-09-22027040.513 ppb
2015-12-1771903ND
2015-12-1771902ND
2015-12-1771901ND
2015-12-1771904ND
2016-03-22ND
2016-03-22ND
2016-03-22ND
2016-03-22ND
2016-06-20ND
2016-06-20ND
2016-06-20ND
2016-06-20ND
2016-09-19ND
2016-09-19ND
2016-09-19ND
2016-09-19ND
2016-12-23ND
2016-12-23ND
2016-12-23ND
2016-12-23ND
2017-03-21ND
2017-03-21ND
2017-03-21ND
2017-03-21ND
2017-06-19ND
2017-06-19ND
2017-06-19ND
2017-06-19ND
2017-09-05ND
2017-09-05ND
2017-09-05ND
2017-09-05ND
2017-12-04ND
2017-12-04ND
2017-12-04ND
2017-12-04ND
2018-03-05ND
2018-03-05ND
2018-03-05ND
2018-03-05ND
2018-06-04ND
2018-06-04ND
2018-06-04ND
2018-06-04ND
2018-09-05ND
2018-09-05ND
2018-09-05ND
2018-09-05ND
2018-12-03ND
2018-12-03ND
2018-12-03ND
2018-12-03ND
2019-03-11ND
2019-03-11ND
2019-03-11ND
2019-03-11ND
2019-06-04ND
2019-06-04ND
2019-06-04ND
2019-06-04ND
2019-09-03ND
2019-09-03ND
2019-09-03ND
2019-09-03ND
2019-12-11ND
2019-12-11ND
2019-12-11ND
2019-12-11ND