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EWG's Tap Water Database — 2019 UPDATE

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Dibromoacetic acid

Port Washington Waterworks

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.

 

41

Samples

0

Samples exceeding legal limit (MCL)

15

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012ND40ND
20130.440 ppb52ND - 1.10 ppb
20140.250 ppb82ND - 1.000 ppb
20150.150 ppb81ND - 1.20 ppb
20160.250 ppb83ND - 0.700 ppb
20170.688 ppb87ND - 0.900 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
2012-01-162576834-35ND
2012-04-252630423-24ND
2012-07-312685237-38ND
2012-12-042749134-35ND
2013-01-302772271-72ND
2013-04-222812712-13ND
2013-08-072872825-261.10 ppb
2013-10-092910727-28ND
2013-10-092910729-301.10 ppb
2014-01-072954183-841.000 ppb
2014-01-072954185-86ND
2014-04-083004512,14ND
2014-04-083004511,13ND
2014-07-083058535-36ND
2014-07-083058537-38ND
2014-10-063117873,75ND
2014-10-063117872,741.000 ppb
2015-01-123167943,46ND
2015-01-123167944,47ND
2015-04-073219918-19ND
2015-04-073219916-17ND
2015-07-063274036-371.20 ppb
2015-07-063274034-35ND
2015-10-063336330-31ND
2015-10-063336328-29ND
2016-01-143386257,59ND
2016-01-143386258,60ND
2016-04-063426435-36ND
2016-04-063426433-34ND
2016-07-113490594-950.700 ppb
2016-07-113490596-970.600 ppb
2016-10-033558694-95ND
2016-10-033558696-970.700 ppb
2017-01-103619833-340.800 ppb
2017-01-103619831-320.900 ppb
2017-04-243682199-2000.900 ppb
2017-04-243682201-020.900 ppb
2017-07-053726743-44ND
2017-07-053726745-460.600 ppb
2017-10-093796072-730.600 ppb
2017-10-093796074-750.800 ppb