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National Drinking Water Database


National Drinking Water Database - Chemical Contaminants

Bromide


Status: Unregulated - EPA has not established a maximum legal limit in tapwater for this contaminant.

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

 
Detected
Found above
health guidelines
Found above
legal limit
States
16
-
-
Water utilities
152
-
-
People Served
34,728,169
-
-

Bromide Exposure by State

Water utilities in 16 states have reported detecting Bromide in treated tap water since 2004, according to EWG's analysis of water quality data supplied by state water agencies.

StateWater Suppliers with Bromide contamination
SystemsPopulation
California8527,937,199
Massachusetts92,417,651
Nevada121,743,274
Wisconsin5817,611
North Carolina6796,799
Virginia8778,766
North Dakota190,599
Minnesota641,837
Illinois633,926
Washington533,868
Wyoming330,025
Alaska22,500
Maine11,375
New York11,200
Indiana1969
Idaho1570
Total15234,728,169

The Most Polluted Communities

152 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

RankSystem Population Served Positive test results of total reported tests Average Level
(Range)
1Sweetwater Authority
Chula Vista, CA
177,63011 of 112082.74 ppb
(695.67 to 3974 ppb)
2Venture Estates Mwc
Hollister, CA
531 of 11300 ppb
(1300 ppb)
3Blue Diamond Water Company
Las Vegas, NV
3103 of 31025.5 ppb
(86 to 2900 ppb)
4Greenville Utilities Comm
Greenville, NC
83,2102 of 21000 ppb
(40 to 1960 ppb)
5Goleta Water Disrict
Goleta, CA
74,0001 of 1790 ppb
(790 ppb)
6Liberty Park Water Association
Huntington Beach, CA
1008 of 8763.75 ppb
(400 to 1300 ppb)
7Best Road Mwc
Hollister, CA
1722 of 2650 ppb
(500 to 800 ppb)
8Strandquist
Strandquist, MN
781 of 1493 ppb
(493 ppb)
9Catalina Street Pump Owners
Santa Ana, CA
1302 of 2480 ppb
(470 to 490 ppb)
10Diamond Park Mutual Water Co.
Santa Ana, CA
2002 of 2460 ppb
(450 to 470 ppb)

Testing Summary for Bromide

Are tests routinely required for Bromide by federal law?No
Water suppliers reporting tests for Bromide (2004-2009):288 of 47,576
Average testing rate for water supplier reporting tests (2004-2009):2.0 per year