The Power of Information

National Drinking Water Database


United Water Idaho Inc Utilities - Boise, ID


Serves 185,787 people

Combined Uranium (pCi/L)

Uranium is a radioactive element commonly found in most rocks; processed ore is used for power generation and weapons manufacture.
 
This Drinking Water System
Test Days Exceeding Health GuidelinesDefinition of what this is
10 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)
10 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
42 tests

Testing Summary

ContaminantAverage/
Maximum
Result
Health Limit
Exceeded
Legal Limit
Exceeded

Testing History

-Tested      -Detected      -Over Health Guidelines      -Over Legal Limit*
Combined Uranium (pCi/L)Uranium is a radioactive element commonly found in most rocks; processed ore is used for power generation and weapons manufacture.13.57 pCi/L
41 pCi/L
YesYes
15 pCi/L
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 Combined Uranium (pCi/L)

Health Based Limits for Combined Uranium (pCi/L)

StandardDescriptionLevel
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.15 pCi/L

Testing Results

Testing DateAverage
Result
Samples taken that dayNumber of Non-DetectsRange of Results
2009-03-0513.33 pCi/L308 to 17 pCi/L
2009-02-065 pCi/L105 pCi/L
2009-01-154 pCi/L104 pCi/L
2008-10-138.8 pCi/L510 to 15 pCi/L
2008-07-1014 pCi/L1014 pCi/L
2008-07-0811 pCi/L201 to 21 pCi/L
2007-12-052 pCi/L102 pCi/L
2007-11-211 pCi/L101 pCi/L
2007-11-080 pCi/L110 pCi/L
2006-08-108 pCi/L108 pCi/L
2006-08-028 pCi/L108 pCi/L
2006-07-3134 pCi/L1034 pCi/L
2006-07-2733 pCi/L1033 pCi/L
2006-07-2632 pCi/L1032 pCi/L
2006-06-200 pCi/L110 pCi/L
2005-11-010 pCi/L110 pCi/L
2005-10-202 pCi/L102 pCi/L
2005-10-060 pCi/L110 pCi/L
2005-08-110 pCi/L110 pCi/L
2005-08-1024.5 pCi/L209 to 40 pCi/L
2005-07-2111 pCi/L1011 pCi/L
2005-07-072 pCi/L102 pCi/L
2005-06-150 pCi/L110 pCi/L
2005-05-270 pCi/L110 pCi/L
2005-04-1541 pCi/L1041 pCi/L
2005-03-161 pCi/L101 pCi/L
2004-10-218 pCi/L108 pCi/L
2004-10-2026 pCi/L1026 pCi/L
2004-08-0634 pCi/L2032 to 36 pCi/L
2004-06-0241 pCi/L1041 pCi/L
2004-06-0131 pCi/L1031 pCi/L
2004-03-0938.5 pCi/L2035 to 42 pCi/L