The Power of Information

National Drinking Water Database


Randall-Bold Water Treatment Plant Utilities - Concord, CA


Serves 30,000 people

Bromide

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
32 days
Tests ConductedNumber of individual tests done for this contaminant
32 tests

Testing Summary

ContaminantAverage/
Maximum
Result
Health Limit
Exceeded
Legal Limit
Exceeded

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.151.5 ppb
600 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
Result
Samples taken that dayNumber of Non-DetectsRange of Results
2009-03-10200 ppb10200 ppb
2009-01-06200 ppb10200 ppb
2008-01-08100 ppb10100 ppb
2007-04-0348 ppb1048 ppb
2007-01-09300 ppb10300 ppb
2006-11-16200 ppb10200 ppb
2006-10-03100 ppb10100 ppb
2006-07-180 ppb110 ppb
2006-04-04100 ppb10100 ppb
2006-01-10200 ppb10200 ppb
2005-09-12100 ppb10100 ppb
2005-07-050 ppb110 ppb
2005-04-26200 ppb10200 ppb
2005-04-050 ppb110 ppb
2005-03-22100 ppb10100 ppb
2005-02-150 ppb110 ppb
2005-01-11300 ppb10300 ppb
2005-01-040 ppb110 ppb
2004-12-07200 ppb10200 ppb
2004-11-02200 ppb10200 ppb
2004-10-26200 ppb10200 ppb
2004-10-05200 ppb10200 ppb
2004-10-04600 ppb10600 ppb
2004-09-21300 ppb10300 ppb
2004-08-17200 ppb10200 ppb
2004-07-13200 ppb10200 ppb
2004-06-08100 ppb10100 ppb
2004-05-040 ppb110 ppb
2004-04-270 ppb110 ppb
2004-04-080 ppb110 ppb
2004-02-190 ppb110 ppb
2004-01-06500 ppb10500 ppb