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EWG's Tap Water Database — 2019 UPDATE

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Bromide

Massachusetts Water Resources Authority (MWRA)

Bromide is a naturally occurring element found in surface waters and groundwater. During drinking water treatment, bromide can combine with chlorine or other disinfectants, contributing to the formation of toxic tap water disinfection byproducts.

 

142

Samples

0

Samples exceeding legal limit (MCL)

0

Samples exceeding
health guidelines

Testing results - average by year

 
YearAverage resultSamples takenDetectionsRange of results
201214.0 ppb242410.4 ppb - 17.3 ppb
201313.1 ppb242410.3 ppb - 15.9 ppb
201412.2 ppb24247.40 ppb - 14.2 ppb
201513.3 ppb24249.70 ppb - 15.9 ppb
201612.9 ppb222210.3 ppb - 15.1 ppb
201714.5 ppb2422ND - 23.6 ppb

ppb = parts per billion

All test results

Date Result
2012-01-0916.3 ppb
2012-01-0917.3 ppb
2012-02-0616.8 ppb
2012-02-0614.4 ppb
2012-03-0516.4 ppb
2012-03-0514.7 ppb
2012-04-0216.0 ppb
2012-04-0216.6 ppb
2012-05-0714.8 ppb
2012-05-0713.0 ppb
2012-06-0414.0 ppb
2012-06-0412.0 ppb
2012-07-0913.4 ppb
2012-07-0911.5 ppb
2012-08-0613.4 ppb
2012-08-0610.4 ppb
2012-09-1013.7 ppb
2012-09-1011.3 ppb
2012-10-0115.1 ppb
2012-10-0111.8 ppb
2012-11-0514.0 ppb
2012-11-0511.7 ppb
2012-12-0314.5 ppb
2012-12-0313.6 ppb
2013-01-0714.7 ppb
2013-01-0712.8 ppb
2013-02-0414.8 ppb
2013-02-0413.3 ppb
2013-03-0413.0 ppb
2013-03-0410.8 ppb
2013-04-0114.0 ppb
2013-04-0111.3 ppb
2013-05-0615.0 ppb
2013-05-0612.1 ppb
2013-06-0315.5 ppb
2013-06-0312.8 ppb
2013-07-0915.2 ppb
2013-07-0912.7 ppb
2013-08-0515.9 ppb
2013-08-0511.5 ppb
2013-09-0414.1 ppb
2013-09-0410.3 ppb
2013-10-0712.6 ppb
2013-10-0710.5 ppb
2013-11-0412.5 ppb
2013-11-0411.7 ppb
2013-12-0213.5 ppb
2013-12-0213.1 ppb
2014-01-0613.8 ppb
2014-01-0613.2 ppb
2014-02-0313.6 ppb
2014-02-0313.7 ppb
2014-03-0313.3 ppb
2014-03-0312.1 ppb
2014-04-0713.1 ppb
2014-04-0713.0 ppb
2014-05-0513.9 ppb
2014-05-0511.1 ppb
2014-06-0211.9 ppb
2014-06-0313.8 ppb
2014-07-0714.2 ppb
2014-07-0713.7 ppb
2014-08-0513.1 ppb
2014-08-058.60 ppb
2014-09-0911.6 ppb
2014-09-097.40 ppb
2014-10-0612.4 ppb
2014-10-069.10 ppb
2014-11-0412.9 ppb
2014-11-049.80 ppb
2014-12-0113.4 ppb
2014-12-0110.00 ppb
2015-01-0513.2 ppb
2015-01-059.70 ppb
2015-02-0213.9 ppb
2015-02-0210.6 ppb
2015-03-0214.1 ppb
2015-03-0213.9 ppb
2015-04-0614.5 ppb
2015-04-0612.8 ppb
2015-05-0415.9 ppb
2015-05-0413.0 ppb
2015-06-0115.8 ppb
2015-06-0113.0 ppb
2015-07-0615.5 ppb
2015-07-0612.9 ppb
2015-08-0315.1 ppb
2015-08-0312.1 ppb
2015-09-0813.8 ppb
2015-09-0811.5 ppb
2015-10-0513.1 ppb
2015-10-0511.6 ppb
2015-11-0213.4 ppb
2015-11-0212.5 ppb
2015-12-0713.8 ppb
2015-12-0712.6 ppb
2016-01-0413.4 ppb
2016-01-0411.6 ppb
2016-02-0113.4 ppb
2016-02-0112.5 ppb
2016-03-0713.6 ppb
2016-03-0712.2 ppb
2016-04-0413.8 ppb
2016-04-0412.5 ppb
2016-05-0214.0 ppb
2016-05-0212.3 ppb
2016-06-0614.8 ppb
2016-06-0613.1 ppb
2016-07-0514.2 ppb
2016-07-0512.2 ppb
2016-08-0113.5 ppb
2016-08-0111.6 ppb
2016-09-0612.3 ppb
2016-09-0610.3 ppb
2016-10-0414.0 ppb
2016-10-0411.8 ppb
2016-12-0515.1 ppb
2016-12-0512.6 ppb
2017-01-0314.3 ppb
2017-01-0312.3 ppb
2017-02-0614.9 ppb
2017-02-0612.2 ppb
2017-03-0615.5 ppb
2017-03-0613.9 ppb
2017-04-0415.4 ppb
2017-04-0413.8 ppb
2017-05-0116.1 ppb
2017-05-0113.6 ppb
2017-06-0517.3 ppb
2017-06-0515.0 ppb
2017-07-1118.1 ppb
2017-07-1114.8 ppb
2017-08-0723.6 ppb
2017-08-0721.6 ppb
2017-09-05ND
2017-09-05ND
2017-10-0317.1 ppb
2017-10-0314.1 ppb
2017-11-0617.0 ppb
2017-11-0614.5 ppb
2017-12-0417.1 ppb
2017-12-0415.3 ppb