The Power of Information

National Drinking Water Database

Kern County Water Agency Utilities - Bakersfield, CA

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Chlorate is a disinfection byproduct (unregulated chlorine dioxide byproduct), an herbicide and a pollutant from explosives.
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
19 days
Tests ConductedNumber of individual tests done for this contaminant
19 tests

Testing Summary

Health Limit
Legal Limit

Testing History

-Tested      -Detected      -Over Health Guidelines      -Over Legal Limit*
ChlorateChlorate is a disinfection byproduct (unregulated chlorine dioxide byproduct), an herbicide and a pollutant from explosives.154.66 ppb
286 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 Chlorate

Health Based Limits for Chlorate

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
2009-03-02210 ppb10210 ppb
2009-02-03230 ppb10230 ppb
2009-01-05252 ppb10252 ppb
2008-12-01237 ppb10237 ppb
2008-11-03172 ppb10172 ppb
2008-10-080.22 ppb100.22 ppb
2008-09-08286 ppb10286 ppb
2008-07-010.14 ppb100.14 ppb
2008-06-02149 ppb10149 ppb
2008-05-06158 ppb10158 ppb
2008-04-080.13 ppb100.13 ppb
2008-03-03125 ppb10125 ppb
2008-02-06194 ppb10194 ppb
2008-01-07102 ppb10102 ppb
2007-12-03185 ppb10185 ppb
2007-11-120.1 ppb100.1 ppb
2007-09-10151 ppb10151 ppb
2007-08-13210 ppb10210 ppb
2007-07-02277 ppb10277 ppb