The Power of Information

National Drinking Water Database


City of Gering Utilities - Scottsbluff, NE


Serves 8,000 people

Radon

Radon is a radioactive breakdown product of radium and uranium in soil, rock and water; it is often present in groundwater.
 
This Drinking Water System
Test Days Exceeding Health GuidelinesDefinition of what this is
9 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
9 days
Tests ConductedNumber of individual tests done for this contaminant
14 tests

Testing Summary

ContaminantAverage/
Maximum
Result
Health Limit
Exceeded
Legal Limit
Exceeded

Testing History

-Tested      -Detected      -Over Health Guidelines      -Over Legal Limit*
RadonRadon is a radioactive breakdown product of radium and uranium in soil, rock and water; it is often present in groundwater.404.44 pCi/L
427 pCi/L
Yes
1.5 pCi/L
Legal 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 Radon

Health Based Limits for Radon

StandardDescriptionLevel
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.1.5 pCi/L
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.150 pCi/L

Testing Results

Testing DateAverage
Result
Samples taken that dayNumber of Non-DetectsRange of Results
2008-09-16427 pCi/L20427 pCi/L
2008-09-10420 pCi/L20420 pCi/L
2008-09-03421 pCi/L20421 pCi/L
2008-08-20384 pCi/L20384 pCi/L
2005-11-16419 pCi/L10419 pCi/L
2005-11-15424 pCi/L10424 pCi/L
2005-11-08340 pCi/L20314 to 366 pCi/L
2005-11-07403 pCi/L10403 pCi/L
2005-09-07402 pCi/L10402 pCi/L