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EWG's Tap Water Database — 2021 UPDATE

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Dibromoacetic acid

Williamson Town WD

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

 

49

Samples

0

Samples exceeding legal limit (MCL)

21

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
20140.475 ppb83ND - 1.40 ppb
20151.47 ppb107ND - 7.30 ppb
20160.163 ppb81ND - 1.30 ppb
20170.313 ppb82ND - 1.30 ppb
20180.625 ppb84ND - 1.40 ppb
20191.19 ppb74ND - 4.00 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
2014-02-121402100-001-DBPND
2014-02-121402100-002-DBPND
2014-05-151406796-001-DBPND
2014-05-151406796-002-DBPND
2014-08-141412947-002-DBP1.30 ppb
2014-08-141412947-001-DBPND
2014-11-131418795-001-DBP1.40 ppb
2014-11-131418795-002-DBP1.10 ppb
2015-02-121501969-001-DBPND
2015-02-121501969-002-DBPND
2015-05-141506662-001-DBP1.000 ppb
2015-05-141506662-002-DBP1.000 ppb
2015-08-121512636-001-DBP1.40 ppb
2015-08-121512636-002-DBPND
2015-10-141516511-002-DBP7.30 ppb
2015-10-141516511-001-DBP1.80 ppb
2015-12-101519562-002-DBP1.20 ppb
2015-12-101519562-001-DBP1.000 ppb
2016-02-111602120-002-DBPND
2016-02-111602120-001-DBP1.30 ppb
2016-05-121607069-001-DBPND
2016-05-121607069-002-DBPND
2016-08-101613185-001-DBPND
2016-08-101613185-002-DBPND
2016-11-101618921-002-DBPND
2016-11-101618921-001-DBPND
2017-02-151702373-002-DBPND
2017-02-151702373-001-DBPND
2017-05-111706885-002-DBPND
2017-05-111706885-001-DBPND
2017-08-091712943-002-DBP1.20 ppb
2017-08-091712943-001-DBP1.30 ppb
2017-11-171719063-002-DBPND
2017-11-171719063-001-DBPND
2018-02-141802412-002-DBPND
2018-02-141802412-001-DBP1.10 ppb
2018-05-101807150-001-DBPND
2018-05-101807150-002-DBPND
2018-08-081813522-001-DBP1.30 ppb
2018-08-081813522-002-DBP1.40 ppb
2018-11-151819811-002-DBPND
2018-11-151819811-001-DBP1.20 ppb
2019-02-131902169-001-DBP4.00 ppb
2019-02-131902169-002-DBP2.10 ppb
2019-05-091906801-002-DBP1.10 ppb
2019-05-091906801-001-DBPND
2019-08-071913101-001ND
2019-11-141919192-002-DBPND
2019-11-141919192-001-DBP1.10 ppb