The Power of Information

National Drinking Water Database


City of Peoria Utilities - Phoenix, AZ


Serves 86,000 people

Gross beta particle activity (mrem/yr)

Beta particles are a form of radiation frequently associated with nuclear testing and radioactive mineral deposits.
 
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
58 days
Tests ConductedNumber of individual tests done for this contaminant
98 tests

Testing Summary

ContaminantAverage/
Maximum
Result
Health Limit
Exceeded
Legal Limit
Exceeded

Testing History

-Tested      -Detected      -Over Health Guidelines      -Over Legal Limit*
Gross beta particle activity (mrem/yr)Beta particles are a form of radiation frequently associated with nuclear testing and radioactive mineral deposits.0 mrem/yr
0 mrem/yr
No
MCLGA non-enforceable health goal that is set at a level at which no known or anticipated adverse effect on the health of persons occurs and which allows an adequate margin of safety. Source: U.S. Environmental Protection Agency.: 0 mrem/yr
No
4 mrem/yr
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 Gross beta particle activity (mrem/yr)

Health Based Limits for Gross beta particle activity (mrem/yr)

StandardDescriptionLevel
Maximum Contaminant Limit Goal (MCLG)A non-enforceable health goal that is set at a level at which no known or anticipated adverse effect on the health of persons occurs and which allows an adequate margin of safety. Source: U.S. Environmental Protection Agency.0 mrem/yr
One in one million (10-6) Cancer RiskThe concentration of a chemical in drinking water corresponding to an excess estimated lifetime cancer risk of 1 in 1,000,000. Source: U.S. Environmental Protection Agency.0.04 mrem/yr
Maximum Contaminant Limit (MCL)The enforceable standard which defines the highest level of a contaminant that is allowed in drinking water. MCLs are set as close to health-based limits (Maximum Contaminant Level Goals, or MCLGs) as feasible using the best available analytical and treatment technologies and taking cost into consideration. Source: U.S. Environmental Protection Agency.4 mrem/yr
One in ten thousand (10-4) Cancer RiskThe concentration of a chemical in drinking water corresponding to an excess estimated lifetime cancer risk of 1 in 10,000. Source: U.S. Environmental Protection Agency.4 mrem/yr

Testing Results

Testing DateAverage
Result
Samples taken that dayNumber of Non-DetectsRange of Results
2007-12-270 mrem/*110 mrem/yr
2007-12-190 mrem/*220 mrem/yr
2007-11-150 mrem/*110 mrem/yr
2007-10-250 mrem/*110 mrem/yr
2007-10-180 mrem/*220 mrem/yr
2007-10-160 mrem/*440 mrem/yr
2007-10-150 mrem/*220 mrem/yr
2007-10-100 mrem/*220 mrem/yr
2007-10-080 mrem/*220 mrem/yr
2007-10-040 mrem/*220 mrem/yr
2007-10-030 mrem/*220 mrem/yr
2007-10-020 mrem/*330 mrem/yr
2007-09-260 mrem/*110 mrem/yr
2007-09-240 mrem/*110 mrem/yr
2007-09-120 mrem/*110 mrem/yr
2007-08-230 mrem/*220 mrem/yr
2007-07-300 mrem/*110 mrem/yr
2007-07-240 mrem/*110 mrem/yr
2007-07-230 mrem/*220 mrem/yr
2007-07-180 mrem/*220 mrem/yr
2007-07-100 mrem/*660 mrem/yr
2007-07-090 mrem/*220 mrem/yr
2007-06-280 mrem/*110 mrem/yr
2007-06-270 mrem/*110 mrem/yr
2007-06-140 mrem/*110 mrem/yr
2007-06-060 mrem/*220 mrem/yr
2007-05-090 mrem/*110 mrem/yr
2007-04-240 mrem/*110 mrem/yr
2007-04-190 mrem/*110 mrem/yr
2007-04-180 mrem/*110 mrem/yr
2007-04-170 mrem/*440 mrem/yr
2007-04-160 mrem/*110 mrem/yr
2007-04-050 mrem/*440 mrem/yr
2007-04-040 mrem/*220 mrem/yr
2007-04-030 mrem/*330 mrem/yr
2007-03-280 mrem/*110 mrem/yr
2007-03-270 mrem/*220 mrem/yr
2007-03-260 mrem/*110 mrem/yr
2007-03-210 mrem/*110 mrem/yr
2007-03-050 mrem/*110 mrem/yr
2007-03-010 mrem/*110 mrem/yr
2007-02-260 mrem/*110 mrem/yr
2007-01-310 mrem/*110 mrem/yr
2007-01-110 mrem/*110 mrem/yr
2007-01-100 mrem/*330 mrem/yr
2007-01-090 mrem/*220 mrem/yr
2007-01-080 mrem/*220 mrem/yr
2007-01-040 mrem/*110 mrem/yr
2007-01-030 mrem/*110 mrem/yr
2005-12-230 mrem/*110 mrem/yr
2004-08-300 mrem/*110 mrem/yr
2004-08-110 mrem/*110 mrem/yr
2004-06-290 mrem/*220 mrem/yr
2004-05-140 mrem/*110 mrem/yr
2004-05-050 mrem/*220 mrem/yr
2004-02-130 mrem/*330 mrem/yr
2004-02-120 mrem/*110 mrem/yr
2004-01-280 mrem/*110 mrem/yr