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Bromide in Massachusetts

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Bromide is a naturally occurring element found in surface waters and groundwater and contributes to the formation of toxic tap water disinfection byproducts.

Bromide Bromide is an ionic form of the naturally occurring element bromine. Bromide is a constituent of some groundwater and coastal waters due to saltwater intrusion; it contributes to the formation of toxic tap water disinfection byproducts. It is also a component of crude oil extraction brines, and is used in making fumigants, flameproofing agents, dyes and sanitizers.

The Most Polluted Communities in Massachusetts

9 water utilities reported detecting Bromide in tap water since 2004, according to EWG's analysis of water quality data supplied by state water agencies

Ranked by highest average Bromide level

Rank	System	Population Served	Positive test results of total reported tests	Average Level (Range)
1	Cambridge Water Department Cambridge, MA	101,355	16 of 16	88 ppb (46 to 130 ppb)
2	Billerica Water Dept Billerica, MA	38,981	6 of 7	70.71 ppb (0 to 150 ppb)
3	Westford Water Department MA	15,853	12 of 12	62.79 ppb (35 to 70 ppb)
4	Andover Water Dept Andover, MA	31,344	12 of 12	49.75 ppb (40 to 64 ppb)
5	Littleton Water Department Littleton, MA	8,500	52 of 52	39.77 ppb (19 to 67 ppb)
6	North Andover Water Dept Dpw North Andover, MA	28,200	25 of 25	31.6 ppb (13 to 40 ppb)
7	Gardner Water Department Gardner, MA	20,770	49 of 57	27.1 ppb (0 to 180 ppb)
8	Massachusetts Water Resources Authority Boston, MA	2,000,000	28 of 28	16.09 ppb (13 to 24.3 ppb)
9	Worcester Dpw, Water Supply Division Worcester, MA	172,648	9 of 179	0.79 ppb (0 to 23 ppb)

Health Based Limits for Bromide

There are no health based standards that EWG is using for this chemical

Violation Summary for Bromide in Massachusetts

There are no violations reported for this contaminant in Massachusetts