The Power of Information

National Drinking Water Database

Meridian Heights Wsa Utilities - Boise, ID

Serves 790 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
18 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)
18 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
33 tests

Testing Summary

Health Limit
Legal Limit

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.42.4 pCi/L
59 pCi/L
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)

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
Samples taken that dayNumber of Non-DetectsRange of Results
2009-04-2250 pCi/L2047 to 53 pCi/L
2009-01-2142.5 pCi/L2042 to 43 pCi/L
2008-11-2142 pCi/L2042 pCi/L
2008-08-2157 pCi/L2044 to 70 pCi/L
2008-05-1459 pCi/L2051 to 67 pCi/L
2008-03-2762.5 pCi/L+2051 to 74 pCi/L
2007-12-1961.5 pCi/L+2048 to 75 pCi/L
2007-09-2558 pCi/L2045 to 71 pCi/L
2007-03-1673 pCi/L+1073 pCi/L
2006-12-2766.5 pCi/L+2052 to 81 pCi/L
2005-10-1312 pCi/L1012 pCi/L
2005-10-1263 pCi/L+2046 to 80 pCi/L
2005-08-0133 pCi/L2018 to 48 pCi/L
2005-07-0667 pCi/L+2049 to 85 pCi/L
2005-03-2140 pCi/L1040 pCi/L
2004-12-1479 pCi/L+2075 to 83 pCi/L
2004-06-2272.5 pCi/L+2052 to 93 pCi/L
2004-02-2330.5 pCi/L1030.5 pCi/L
2004-01-1463.6 pCi/L+1063.6 pCi/L