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EWG's Tap Water Database — 2019 UPDATE

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Bromate

Attleboro Water Department

Bromate is a carcinogenic disinfection byproduct formed when source waters containing bromide are treated with ozonation or sodium hypochlorite. Studies of laboratory animals show that bromate damages DNA and causes cancer in multiple organs. Click here to read more about disinfection byproducts.

 

63

Samples

0

Samples exceeding legal limit (MCL)

3

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
2012N/A00N/A
2013ND150ND
2014ND120ND
20150.663 ppb243ND - 5.30 ppb
2016ND120ND
2017N/A00N/A

ppb = parts per billion

State and national drinking water standards and health guidelines

EWG Health Guideline 0.1 ppb

The EWG Health Guideline of 0.1 ppb for bromate was defined by the California Office of Environmental Health Hazard Assessment as a public health goal, the level of a drinking water contaminant that does not pose a significant health risk. This health guideline protects against cancer.

EPA Maximum Contaminant
Level (MCL) 10 ppb

The legal limit for bromate, established in 1998, was based on analytical detection limits at the time that the standard was set. This limit may not fully protect against the risk of cancer due to bromate exposure.

ppb = parts per billion

All test results

Date Result
2013-05-03ND
2013-05-03ND
2013-05-03ND
2013-06-01ND
2013-06-01ND
2013-06-01ND
2013-07-04ND
2013-07-04ND
2013-07-04ND
2013-08-06ND
2013-08-06ND
2013-08-06ND
2013-11-05ND
2013-11-05ND
2013-11-05ND
2014-02-12ND
2014-02-12ND
2014-02-12ND
2014-03-11ND
2014-03-11ND
2014-03-11ND
2014-06-04ND
2014-06-04ND
2014-06-04ND
2014-11-06ND
2014-11-06ND
2014-11-06ND
2015-02-25ND
2015-02-25ND
2015-02-25ND
2015-04-09ND
2015-04-09ND
2015-04-09ND
2015-04-14ND
2015-04-14ND
2015-04-14ND
2015-05-025.30 ppb
2015-05-025.30 ppb
2015-05-025.30 ppb
2015-07-16ND
2015-07-16ND
2015-07-16ND
2015-08-05ND
2015-08-05ND
2015-08-05ND
2015-09-03ND
2015-09-03ND
2015-09-03ND
2015-10-07ND
2015-10-07ND
2015-10-07ND
2016-06-04ND
2016-06-04ND
2016-06-04ND
2016-07-01ND
2016-07-01ND
2016-07-01ND
2016-08-01ND
2016-08-01ND
2016-08-01ND
2016-08-03ND
2016-08-03ND
2016-08-03ND