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EWG's Tap Water Database — 2019 UPDATE

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Dibromoacetic acid

Holliston Water Department

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.

 

29

Samples

0

Samples exceeding legal limit (MCL)

24

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012N/A00N/A
2013N/A00N/A
2014N/A00N/A
20151.73 ppb1311ND - 2.90 ppb
20161.45 ppb1613ND - 3.20 ppb
2017N/A00N/A

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 Result
2015-03-101.80 ppb
2015-03-102.40 ppb
2015-03-102.60 ppb
2015-03-100.860 ppb
2015-06-092.10 ppb
2015-06-092.20 ppb
2015-06-09ND
2015-06-102.10 ppb
2015-09-080.790 ppb
2015-09-08ND
2015-09-082.30 ppb
2015-09-082.50 ppb
2015-12-102.90 ppb
2016-03-082.70 ppb
2016-03-080.760 ppb
2016-03-081.90 ppb
2016-03-080.510 ppb
2016-06-141.80 ppb
2016-06-14ND
2016-06-142.40 ppb
2016-06-142.60 ppb
2016-09-133.20 ppb
2016-09-130.540 ppb
2016-09-13ND
2016-09-132.50 ppb
2016-12-13ND
2016-12-131.70 ppb
2016-12-131.70 ppb
2016-12-130.810 ppb