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HRS Table 7.1

HRS Factor Values Evaluated Differently For Radionuclides
Ground water pathway Statusa Surface water pathway Statusa Soil exposure pathway Statusa Air pathway Statusa
 
Likelihood of Release   Likelihood of Release   Likelihood of Release   Likelihood of Release  
 
Observed Release Yes Observed Release Yes Observed Contamination Yes Observed Release Yes
Potential to Release No Potential to Release No Attractiveness / Accessibility No Gas Potential to Release No
Containment No Overland Flow Containment No to Nearby Residents   Gas Containment No
Net Precipitation No Runoff No Area of Contamination No Gas Source Type No
Depth to Aquifer No Distance to Surface Water No   Gas Migration Potential No
Travel Time No Flood Frequency No   Particulate Potential to Release No
  Flood Containment No   Particulate Containment No
  Particulate Source Type No
  Particulate Migration Potential No
 
Waste Characteristics   Waste Characteristics   Waste Characteristics   Waste Characteristics  
 
Toxicity Yes Toxicity / Ecotoxicity Yes / Yes Toxicity Yes Toxicity Yes
Mobility No Persistence / Mobility Yes / No Hazardous Waste Quantity Yes Mobility No
Hazardous Waste Quantity Yes Bioaccumulation Potential No   Hazardous Waste Quantity Yes
  Hazardous Waste Quantity Yes  
 
Targets   Targets   Targets   Targets  
 
Nearest Well Yesb Nearest Intake Yesb Resident Individual Yesb Nearest Individual Yesb
Population Yesb Drinking Water Population Yesb Resident Population Yesb Population Yesb
Resources No Resources No Workers No Resources No
Wellhead Protection Area No Sensitive Environments Yesb Resources No Sensitive Environments No
  Human Food Chain Individual Yesb Terrestrial Sensitive Environments No  
  Human Food Chain Population Yesb  
  Nearby Individual No  
  Population Within 1 Mile No  

a Factors evaluated differently are denoted by "yes"; factors not evaluated differently are denoted by "no."

b Difference is in the determination of Level I and Level II concentrations.

 

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