The Power of Information

National Drinking Water Database

San Diego Water Department Utilities - San Diego, CA

Serves 1,281,400 people


Bromide is a naturally occurring element found in surface waters and groundwater and contributes to the formation of toxic tap water disinfection byproducts.
This Drinking Water System
Test Days Exceeding Health GuidelinesDefinition of what this is
0 days
Test Days Exceeding Legal LimitsNumber of days in which the samples taken in that day exceed the Maximum Contaminant Level (Depending on the contaminant and its MCL, that may or may not trigger an MCL violation. Some MCLs are based on averages spanning several months to a year)
0 days
Test DaysNumber of days in which this chemical has reported results in the data we received from the State
62 days
Tests ConductedNumber of individual tests done for this contaminant
218 tests

Testing Summary

Health Limit
Legal Limit

Testing History

-Tested      -Detected      -Over Health Guidelines      -Over Legal Limit*
BromideBromide is a naturally occurring element found in surface waters and groundwater and contributes to the formation of toxic tap water disinfection byproducts.45.2 ppb
1170 ppb
NoLegal at any levelThis is the Federal Limit. State Limits may be lower.
NOTE: Each dot in the above graph represents one month.
* Water utilities are noted as exceeding the legal limit if any test is above the maximum contaminant level (MCL). Most MCLs are based on annual averages so exceeding the MCL for one test does not necessarily indicate that the system is out of compliance.

Health Based and Legal Limits for Bromide

Health Based Limits for Bromide

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

Testing Results

Testing DateAverage
Samples taken that dayNumber of Non-DetectsRange of Results
2009-03-0286.67 ppb310 to 150 ppb
2009-02-02100 ppb310 to 150 ppb
2009-01-0525 ppb430 to 100 ppb
2008-12-010 ppb440 ppb
2008-11-04110 ppb10110 ppb
2008-11-0336.67 ppb320 to 110 ppb
2008-10-0662.5 ppb420 to 130 ppb
2008-09-040 ppb110 ppb
2008-09-030 ppb220 ppb
2008-08-050 ppb110 ppb
2008-08-040 ppb330 ppb
2008-07-0755 ppb420 to 110 ppb
2008-06-020 ppb440 ppb
2008-05-050 ppb440 ppb
2008-04-070 ppb440 ppb
2008-03-030 ppb220 ppb
2008-02-041170 ppb210 to 2340 ppb
2008-01-070 ppb440 ppb
2007-12-030 ppb440 ppb
2007-11-050 ppb440 ppb
2007-10-0133.33 ppb320 to 100 ppb
2007-09-0457.5 ppb420 to 120 ppb
2007-08-0655 ppb420 to 110 ppb
2007-07-0230 ppb430 to 120 ppb
2007-06-040 ppb440 ppb
2007-05-070 ppb440 ppb
2007-04-020 ppb330 ppb
2007-03-050 ppb440 ppb
2007-02-050 ppb440 ppb
2007-01-100 ppb330 ppb
2006-12-040 ppb440 ppb
2006-11-0627.5 ppb430 to 110 ppb
2006-10-020 ppb440 ppb
2006-09-060 ppb330 ppb
2006-08-070 ppb440 ppb
2006-07-030 ppb330 ppb
2006-06-0570 ppb310 to 110 ppb
2006-05-010 ppb440 ppb
2006-04-030 ppb440 ppb
2006-03-0633.33 ppb320 to 100 ppb
2006-02-0650 ppb420 to 100 ppb
2005-12-050 ppb440 ppb
2005-10-030 ppb440 ppb
2005-09-120 ppb440 ppb
2005-06-0670 ppb420 to 150 ppb
2005-05-020 ppb440 ppb
2005-04-11730 ppb10730 ppb
2005-04-040 ppb440 ppb
2005-03-070 ppb440 ppb
2005-02-070 ppb440 ppb
2005-01-030 ppb440 ppb
2004-12-060 ppb440 ppb
2004-11-010 ppb440 ppb
2004-10-040 ppb440 ppb
2004-09-070 ppb440 ppb
2004-08-020 ppb440 ppb
2004-06-070 ppb440 ppb
2004-05-030 ppb440 ppb
2004-04-050 ppb440 ppb
2004-03-010 ppb440 ppb
2004-02-020 ppb330 ppb
2004-01-050 ppb440 ppb