ML061460152
| ML061460152 | |
| Person / Time | |
|---|---|
| Site: | Rancho Seco |
| Issue date: | 04/30/2006 |
| From: | Sacramento Municipal Utility District (SMUD) |
| To: | Document Control Desk, NRC/FSME |
| References | |
| MPC&D 06-035, NQA 06-015 | |
| Download: ML061460152 (272) | |
Text
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-A, RESRAD Parameters for Soil Dose Modeling Probabilistic Analysis Parameter Parameter Class1 Priority2 Units Basis for Parameter Selection Value Contamination Thickness of P 2 m 0.15 Assigned value contaminated zone Area of contaminated P 2 m2 10,000 Default RESRAD v6.22 Physical priority 2 value acceptable for zone this evaluation Shape of the P 3 - Circular Default RESRAD v6.22 Physical priority 3 value acceptable for contaminated zone this evaluation Initial concentration of P 2 pCi/g Table 6-2 Radionuclide concentrations obtained by General Engineering principal Decayed conc. Laboratories (GEL) for sample number SC 8100010 DS08A1 radionuclides in soil values (spent fuel cooler pad soil)
Initial concentration of P 3 pCi/L 0 Not Used for this evaluation radionuclides present in ground water Leach rate P 3 1/yr 0 Default Physical priority 3 value to invoke the calculation of this parameter via a first-order leaching model that uses the value of the soil/water distribution coefficient in the contaminated zone Solubility limit P 3 mol/L 0 Default Physical value - not used by RESRAD v6.22 with leach rate flag set to 0 Time since placement P 3 yr 0 Default RESRAD v6.22 Physical priority 3 value acceptable for of material this evaluation Times for calculation P 3 yr 1, 3, 10, 30, Default RESRAD v6.22 Physical priority 3 value acceptable for 100, 300, 1000 this evaluation Contaminated zone P 1 g/cm3 Normal NUREG/CR-6767, Attachment C, Table C-1 distribution for silt density distribution Contaminated zone P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for C distribution Contaminated zone P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Ni distribution Contaminated zone P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Co distribution Page 6-63
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-A, RESRAD Parameters for Soil Dose Modeling Probabilistic Analysis Parameter Parameter Class1 Priority2 Units Basis for Parameter Selection Value Contaminated zone P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Sr distribution Contaminated zone P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Cs distribution Use plant/soil ratio NA 3 Check No For purposes of this evaluation, the code should not be allowed to box calculate the distribution coefficients from the plant root uptake factors because they are calculated probabilistically Contaminated zone P 3 - 0.2 Default RESRAD v6.22 Priority 3 Physical priority 3 value field capacity acceptable for this evaluation Contaminated zone P,B 2 m/yr Continuous NUREG/CR-6697, Attachment C erosion rate logarithmic distribution Contaminated zone P 2 - Truncated NUREG/CR-6697, Attachment C total porosity normal distribution Contaminated zone P 2 m/yr Lognormal NUREG/CR-6697, Attachment C hydraulic conductivity Contaminated zone b P 2 - Bounded NUREG/CR-6697, Attachment C parameter lognormal-n distribution Carbon-Model Parameters Thickness of evasion P 2 m Triangular NUREG/CR-6697, Attachment C layer of C-14 in soil distribution C-14 evasion flux rate P 3 1/s 7E-07 Default RESRAD v6.22 Priority 3 Physical priority 3 value from soil acceptable for this evaluation C-12 concentration in P 3 g/cm3 2E-05 Default RESRAD v6.22 Priority 3 Physical priority 3 value local water acceptable for this evaluation C-12 concentration in P 3 g/g 0.03 Default RESRAD v6.22 Priority 3 Physical priority 3 value contaminated soil acceptable for this evaluation Fraction of vegetation P 3 - 0.02 Default RESRAD v6.22 Priority 3 Physical priority 3 value carbon absorbed acceptable for this evaluation from soil Page 6-64
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-A, RESRAD Parameters for Soil Dose Modeling Probabilistic Analysis Parameter Parameter Class1 Priority2 Units Basis for Parameter Selection Value Fraction of vegetation P 3 - 0.98 Default RESRAD v6.22 Priority 3 Physical priority 3 value carbon absorbed acceptable for this evaluation from air C-12 evasion flux rate P 3 1/s 1E-10 Default RESRAD v6.22 Priority 3 Physical priority 3 value from soil acceptable for this evaluation Grain fraction in beef B 3 - 0.8 Default RESRAD v6.22 Priority 3 Behavioral priority 3 value cattle feed acceptable for this evaluation Grain fraction in milk B 3 - 0.2 Default RESRAD v6.22 Priority 3 Behavioral priority 3 value cow feed acceptable for this evaluation DCF correction factor P 3 - 88.94 Default RESRAD v6.22 Priority 3 Physical priority 3 value for gaseous forms of acceptable for this evaluation C-14 Soil Cover depth P 2 m 0 The contamination is assumed to be on surface soil Density of cover P 1 g/cm3 Not Used A cover is not used in this evaluation material Cover total porosity P 3 - Not Used Radon is not used in this evaluation Cover volumetric P 3 - Not Used Radon is not used in this evaluation water content Cover radon diffusion P 3 m2/s Not Used Radon is not used in this evaluation coefficient Cover erosion rate P,B 2 m/yr Not Used A cover is not used in this evaluation Number of P 3 - 4 Simplified hydrogeological model assumption unsaturated zones Unsaturated zone 1 P 1 m 0.305 Thickness of silt layer above the sand layer thickness Unsaturated zone 1 P 2 g/cm3 Normal NUREG/CR-6767, Attachment C, Table C-1 distribution for silt density distribution Unsaturated zone 1 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for C distribution Unsaturated zone 1 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Ni distribution Page 6-65
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-A, RESRAD Parameters for Soil Dose Modeling Probabilistic Analysis Parameter Parameter Class1 Priority2 Units Basis for Parameter Selection Value Unsaturated zone 1 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Co distribution Unsaturated zone 1 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Sr distribution Unsaturated zone 1 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Cs distribution Unsaturated zone 1 P 2 - Truncated NUREG/CR-6697, Attachment C, Table 3.2-1 distribution for silt total porosity normal distribution Unsaturated zone 1 P 2 - Truncated NUREG/CR-6767, Attachment A, Table A-7 distribution for silt effective porosity normal distribution Unsaturated zone 1 P 3 - Truncated NUREG/CR-6767, Attachment A, Table A-7 distribution for silt field capacity normal distribution Unsaturated zone 1 P 2 m/yr Bounded NUREG/CR-6697, Attachment C, Table 3.4-1 for silt hydraulic lognormal-n conductivity distribution Unsaturated zone 1 P 2 - Bounded NUREG/CR-6697, Attachment C, Table 3.5-1 for silt soil-specific b lognormal-n parameter distribution Unsaturated zone 2 P 1 m 3.05 Thickness of fine sand layer above the siltstone layer thickness Unsaturated zone 2 P 2 g/cm3 Normal NUREG/CR-6767, Attachment C, Table C-1 distribution for sand density distribution Unsaturated zone 2 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for C distribution Unsaturated zone 2 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Ni distribution Page 6-66
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-A, RESRAD Parameters for Soil Dose Modeling Probabilistic Analysis Parameter Parameter Class1 Priority2 Units Basis for Parameter Selection Value Unsaturated zone 2 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Co distribution Unsaturated zone 2 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Sr distribution Unsaturated zone 2 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Cs distribution Unsaturated zone 2 P 2 - Truncated NUREG/CR-6697, Attachment C, Table 3.2-1 distribution for sand total porosity normal distribution Unsaturated zone 2 P 2 - Truncated NUREG/CR-6767, Attachment A, Table A-1 distribution for sand effective porosity normal distribution Unsaturated zone 2 P 3 - Truncated NUREG/CR-6767, Attachment A, Table A-1 distribution for sand field capacity normal distribution Unsaturated zone 2 P 2 m/yr Bounded NUREG/CR-6697, Attachment C, Table 3.4-1 for sand hydraulic lognormal-n conductivity distribution Unsaturated zone 2 P 2 - Bounded NUREG/CR-6697, Attachment C, Table 3.5-1 for sand soil-specific b lognormal-n parameter distribution Unsaturated zone 3 P 1 m 25.60 Thickness of siltstone layer thickness Unsaturated zone 3 P 2 g/cm3 Normal NUREG/CR-6767, Attachment C, Table C-1 distribution for silt density distribution Unsaturated zone 3 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for C distribution Unsaturated zone 3 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Ni distribution Page 6-67
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-A, RESRAD Parameters for Soil Dose Modeling Probabilistic Analysis Parameter Parameter Class1 Priority2 Units Basis for Parameter Selection Value Unsaturated zone 3 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Co distribution Unsaturated zone 3 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Sr distribution Unsaturated zone 3 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Cs distribution Unsaturated zone 3 P 2 - 0.35 RESRAD Data Collection Handbook Table 3.2 arithmetic mean for total porosity medium siltstone Unsaturated zone 3 P 2 - 0.12 RESRAD Data Collection Handbook Table 3.2 arithmetic mean for effective porosity medium siltstone Unsaturated zone 3 P 3 - 0.23 Total porosity minus effective porosity per RESRAD Data field capacity Collection Handbook, Section 4.1 Unsaturated zone 3 P 2 m/yr Bounded NUREG/CR-6697, Attachment C, Table 3.4-1 for silt hydraulic lognormal-n conductivity distribution Unsaturated zone 3 P 2 - Bounded NUREG/CR-6697, Attachment C, Table 3.5-1 for silt soil-specific b lognormal-n parameter distribution Unsaturated zone 4 P 1 m 10.82 Thickness of unsaturated sandstone layer thickness Unsaturated zone 4 P 2 g/cm3 Normal NUREG/CR-6767, Attachment C, Table C-1 distribution for sand density distribution Unsaturated zone 4 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for C distribution Unsaturated zone 4 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Ni distribution Unsaturated zone 4 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Co distribution Page 6-68
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-A, RESRAD Parameters for Soil Dose Modeling Probabilistic Analysis Parameter Parameter Class1 Priority2 Units Basis for Parameter Selection Value Unsaturated zone 4 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Sr distribution Unsaturated zone 4 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Cs distribution Unsaturated zone 4 P 2 - 0.35 RESRAD Data Collection Handbook Table 3.2 arithmetic mean for total porosity sandstone Unsaturated zone 4 P 2 - 0.27 RESRAD Data Collection Handbook Table 3.2 arithmetic mean for effective porosity sandstone Unsaturated zone 4 P 3 - 0.07 Total porosity minus effective porosity per RESRAD Data field capacity Collection Handbook, Section 4.1 Unsaturated zone 4 P 2 m/yr 10 Upper boundary value from RESRAD Data Collection Handbook, hydraulic Table 5.1 for sandstone conductivity Unsaturated zone 4 P 2 - Bounded NUREG/CR-6697, Attachment C, Table 3.5-1 for sand soil-specific b lognormal-n parameter distribution Water Density of saturated P 1 g/cm3 Normal NUREG/CR-6767, Attachment C, Table C-1 distribution for sand zone distribution Saturated zone P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for C distribution Saturated zone P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Ni distribution Saturated zone P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Co distribution Saturated zone P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Sr distribution Page 6-69
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-A, RESRAD Parameters for Soil Dose Modeling Probabilistic Analysis Parameter Parameter Class1 Priority2 Units Basis for Parameter Selection Value Saturated zone P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Cs distribution Saturated zone total P 1 - 0.34 RESRAD Data Collection Handbook Table 3.2 arithmetic mean for porosity sandstone Saturated zone P 1 - 0.27 RESRAD Data Collection Handbook Table 3.2 arithmetic mean for effective porosity sandstone Saturated zone field P 3 - 0.07 Total porosity minus effective porosity per RESRAD Data capacity Collection Handbook, Section 4.1 Saturated zone P 1 m/yr 10 Upper boundary value from RESRAD Data Collection Handbook, hydraulic Table 5.1 for sandstone conductivity Saturated zone P 2 - Bounded NUREG/CR-6697, Attachment C hydraulic gradient lognormal-n distribution Saturated zone soil- P 2 - Bounded NUREG/CR-6697, Attachment C specific b parameter lognormal-n distribution Length of P 2 m 113 Diameter of an 10,000 m2 contaminated zone contaminated zone parallel to the aquifer flow Water table drop rate P 3 m/yr 0.783 Site specific value applicable to the RSNGS site as reported in the FSAR, Appendix 2C Well-pump intake P 2 m 23 Site specific value applicable to the RSNGS site as reported in the depth (below water FSAR, Appendix 2C table)
Well pumping rate B, P 2 m3/yr Not Used Well pumping rate is not used with the Mass-Balance model for water transport selected - well pumping rate is used to calculated a dilution factor when the Non- Dispersion model is selected.
Model: non-dispersion NA 3 - MB The mass-balance model was chosen as the most conservative or mass balance since it assumes that all of the radionuclides released from the contaminated zone are withdrawn through the well.
Page 6-70
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-A, RESRAD Parameters for Soil Dose Modeling Probabilistic Analysis Parameter Parameter Class1 Priority2 Units Basis for Parameter Selection Value Evapotranspiration P 2 - Uniform NUREG/CR-6697, Attachment C coefficient distribution Humidity in air P 3 g/m3 Not Used Not used when the Radon exposure pathway is suppressed Average annual wind P 2 m/s 3.13 7 mph average annual wind speed for the years of 1930 - 1996 speed reported by the National Climatic Data Center for Stockton, CA (http://www.ncdc.noaa.gov/oa/documentlibrary/wind/wind1996.p df)
Precipitation rate P 2 m/yr 0.38 Mean annual average rainfall measured at Sacramento and Stockton Irrigation mode B 3 - Overhead Behavioral value - ditch irrigation is not the principal method of irrigation in the local region Irrigation rate B 3 m/yr 0.2 Behavioral RESRAD v6.22 default value acceptable for this evaluation Runoff coefficient P 2 - Uniform NUREG/CR-6697, Attachment C distribution Watershed area for P 3 m2 1.00E+07 The majority of the RSNGS site drains into Clay Creek nearby stream or pond Accuracy for water soil NA 3 - 0.001 Default RESRAD v6.22 priority 3 value acceptable for this computation evaluation Ingestion Fruit, vegetable, and M, B 2 kg/yr Not Used Not used with ingestion exposure pathways suppressed in grain consumption accordance with the Industrial Worker Scenario rate Leafy vegetable M, B 3 kg/yr Not Used Not used with ingestion exposure pathways suppressed in consumption accordance with the Industrial Worker Scenario Milk consumption M, B 2 L/yr Not Used Not used with ingestion exposure pathways suppressed in accordance with the Industrial Worker Scenario Meat and poultry M, B 3 kg/yr Not Used Not used with ingestion exposure pathways suppressed in consumption accordance with the Industrial Worker Scenario Fish consumption rate M, B 3 kg/yr Not Used Not used with ingestion exposure pathways suppressed in accordance with the Industrial Worker Scenario Other seafood M, B 3 kg/yr Not Used Not used with ingestion exposure pathways suppressed in consumption rate accordance with the Industrial Worker Scenario Page 6-71
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-A, RESRAD Parameters for Soil Dose Modeling Probabilistic Analysis Parameter Parameter Class1 Priority2 Units Basis for Parameter Selection Value Aquatic food B, P 2 - Not Used Not used with ingestion exposure pathways suppressed in contaminated accordance with the Industrial Worker Scenario fraction Soil ingestion rate M, B 2 g/yr Triangular NUREG/CR-6697, Attachment C distribution Drinking water intake M, B 2 L/yr Truncated NUREG/CR-6697, Attachment C lognormal-n distribution Storage time for fruits, B 3 d Not Used Not used with ingestion exposure pathways suppressed in non-leafy accordance with the Industrial Worker Scenario vegetables, and grain Storage time for leafy B 3 d Not Used Not used with ingestion exposure pathways suppressed in vegetables accordance with the Industrial Worker Scenario Storage time for milk B 3 d Not Used Not used with ingestion exposure pathways suppressed in accordance with the Industrial Worker Scenario Storage time for meat B 3 d Not Used Not used with ingestion exposure pathways suppressed in accordance with the Industrial Worker Scenario Storage time for fish B 3 d Not Used Not used with ingestion exposure pathways suppressed in accordance with the Industrial Worker Scenario Storage time for B 3 d Not Used Not used with ingestion exposure pathways suppressed in crustacea and accordance with the Industrial Worker Scenario mollusks Storage time for well B 3 d 1 Behavioral priority 3 RESRAD v6.22 default value water Storage time for B 3 d 1 Behavioral priority 3 RESRAD v6.22 default value surface water Storage time for B 3 d Not Used Not used with ingestion exposure pathways suppressed in livestock fodder accordance with the Industrial Worker Scenario Drinking water B, P 3 - 1 Default RESRAD v6.22 Behavioral/Physical priority 3 value contaminated acceptable for this evaluation fraction Household water B, P 3 - Not Used Not used when the radon exposure pathway is suppressed contaminated fraction Page 6-72
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-A, RESRAD Parameters for Soil Dose Modeling Probabilistic Analysis Parameter Parameter Class1 Priority2 Units Basis for Parameter Selection Value Livestock water B, P 3 - Not Used Not used with ingestion exposure pathways suppressed in contaminated accordance with the Industrial Worker Scenario fraction Irrigation water B, P 3 - Not Used Not used with ingestion exposure pathways suppressed in contaminated accordance with the Industrial Worker Scenario fraction Plant food B, P 3 - Not Used Not used with ingestion exposure pathways suppressed in contaminated accordance with the Industrial Worker Scenario fraction Meat contaminated B, P 3 - Not Used Not used with ingestion exposure pathways suppressed in fraction accordance with the Industrial Worker Scenario Milk contaminated B, P 3 - Not Used Not used with ingestion exposure pathways suppressed in fraction accordance with the Industrial Worker Scenario Livestock fodder M 3 kg/d Not Used Not used with meat and milk exposure pathways suppressed in intake rate for meat accordance with the Industrial Worker Scenario Livestock fodder M 3 kg/d Not Used Not used with meat and milk exposure pathways suppressed in intake rate for milk accordance with the Industrial Worker Scenario Livestock water intake M 3 L/d Not Used Not used with meat and milk exposure pathways suppressed in rate for meat accordance with the Industrial Worker Scenario Livestock water intake M 3 L/d Not Used Not used with meat and milk exposure pathways suppressed in rate for milk accordance with the Industrial Worker Scenario Livestock intake of soil M 3 kg/d Not Used Not used with meat and milk exposure pathways suppressed in accordance with the Industrial Worker Scenario Mass loading for foliar P 3 g/m3 Not Used Not used with vegetation exposure pathways suppressed in deposition accordance with the Industrial Worker Scenario Depth of soil mixing P 2 m Triangular NUREG/CR-6697, Attachment C layer distribution Depth of roots P 1 m Not Used Not used with vegetation exposure pathways suppressed in accordance with the Industrial Worker Scenario Groundwater fractional B, P 3 - 1 Default RESRAD v6.22 Behavioral/Physical priority 3 value usage for drinking acceptable for this evaluation water Groundwater fractional B, P 3 - Not Used Not used when the radon exposure pathway is suppressed usage for household water Page 6-73
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-A, RESRAD Parameters for Soil Dose Modeling Probabilistic Analysis Parameter Parameter Class1 Priority2 Units Basis for Parameter Selection Value Groundwater fractional B, P 3 - Not Used Not used with ingestion exposure pathways suppressed in usage for livestock accordance with the Industrial Worker Scenario water Groundwater fractional B, P 3 - Not Used Not used with ingestion exposure pathways suppressed in usage for irrigation accordance with the Industrial Worker Scenario water Wet weight crop yield P 2 kg/m2 Not Used Not used with vegetation exposure pathways suppressed in for non-leafy plants accordance with the Industrial Worker Scenario Wet weight crop yield P 3 kg/m2 Not Used Not used with vegetation exposure pathways suppressed in for leafy plants accordance with the Industrial Worker Scenario Wet weight crop yield P 3 kg/m2 Not Used Not used with vegetation exposure pathways suppressed in for fodder accordance with the Industrial Worker Scenario Length of growing P 3 yr Not Used Not used with vegetation exposure pathways suppressed in season for non-leafy accordance with the Industrial Worker Scenario vegetables Length of growing P 3 yr Not Used Not used with vegetation exposure pathways suppressed in season for leafy accordance with the Industrial Worker Scenario vegetables Length of growing P 3 yr Not Used Not used with vegetation exposure pathways suppressed in season for fodder accordance with the Industrial Worker Scenario Translocation factor P 3 - Not Used Not used with vegetation exposure pathways suppressed in for non-leafy accordance with the Industrial Worker Scenario vegetables Translocation factor P 3 - Not Used Not used with vegetation exposure pathways suppressed in for leafy vegetables accordance with the Industrial Worker Scenario Translocation factor P 3 - Not Used Not used with vegetation exposure pathways suppressed in for fodder accordance with the Industrial Worker Scenario Weathering removal P 2 1/yr Not Used Not used with vegetation exposure pathways suppressed in constant accordance with the Industrial Worker Scenario Dry foliar interception P 3 - Not Used Not used with vegetation exposure pathways suppressed in fraction for non-leafy accordance with the Industrial Worker Scenario vegetables Dry foliar interception P 3 - Not Used Not used with vegetation exposure pathways suppressed in fraction for leafy accordance with the Industrial Worker Scenario vegetables Page 6-74
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-A, RESRAD Parameters for Soil Dose Modeling Probabilistic Analysis Parameter Parameter Class1 Priority2 Units Basis for Parameter Selection Value Dry foliar interception P 3 - Not Used Not used with vegetation exposure pathways suppressed in fraction for fodder accordance with the Industrial Worker Scenario Wet foliar interception P 3 - Not Used Not used with vegetation exposure pathways suppressed in fraction for non-leafy accordance with the Industrial Worker Scenario vegetables Wet foliar interception P 2 - Not Used Not used with vegetation exposure pathways suppressed in fraction for leafy accordance with the Industrial Worker Scenario vegetables Wet foliar interception P 3 - Not Used Not used with vegetation exposure pathways suppressed in fraction for fodder accordance with the Industrial Worker Scenario Slope factor - external M 3 (risk/yr)/ Nuclide specific Metabolic RESRAD v6.22 default value (pCi/g)
Slope factor - M 3 risk/pCi Nuclide specific Metabolic RESRAD v6.22 default value inhalation Slope factor - M 3 risk/pCi Nuclide specific Metabolic RESRAD v6.22 default value ingestion Plant transfer factor P 1 - Nuclide specific Not used with ingestion exposure pathways suppressed in
- Not Used accordance with the Industrial Worker Scenario Meat transfer factor P 2 (pCi/kg)/ Nuclide specific Not used with ingestion exposure pathways suppressed in (pCi/d) - Not Used accordance with the Industrial Worker Scenario Milk transfer factor P 2 (pCi/L)/ Nuclide specific Not used with ingestion exposure pathways suppressed in (pCi/d) - Not Used accordance with the Industrial Worker Scenario Bioaccumulation factor P 2 (pCi/kg)/ Nuclide specific Not used with ingestion exposure pathways suppressed in for fish (pCi/L) - Not Used accordance with the Industrial Worker Scenario Bioaccumulation factor P 3 (pCi/kg)/ Nuclide specific Not used with ingestion exposure pathways suppressed in for crustacea and (pCi/L) - Not Used accordance with the Industrial Worker Scenario mollusks Occupancy (Inhalation & External Parameters)
Inhalation rate M, B 3 m3/yr Triangular NUREG/CR-6697, Attachment C distribution Inhalation dose M 3 mrem/pCi Nuclide specific Metabolic RESRAD v6.22 default value conversion factors Ingestion dose M 3 mrem/pCi Nuclide specific Metabolic RESRAD v6.22 default value conversion factors Page 6-75
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-A, RESRAD Parameters for Soil Dose Modeling Probabilistic Analysis Parameter Parameter Class1 Priority2 Units Basis for Parameter Selection Value Mass loading for P, B 2 g/m3 Continuous NUREG/CR-6697, Attachment C inhalation linear distribution Indoor dust filtration P, B 2 - Uniform NUREG/CR-6697, Attachment C factor distribution External gamma P 2 - Bounded NUREG/CR-6697, Attachment C shielding factor lognormal-n distribution Building foundation P 3 m Not Used The Radon Exposure Pathway is not used thickness Building foundation P 3 g/m3 Not Used The Radon Exposure Pathway is not used bulk density Building foundation P 3 - Not Used The Radon Exposure Pathway is not used total porosity Building foundation P 3 - Not Used The Radon Exposure Pathway is not used volumetric water content Building foundation P 3 m2/s Not Used The Radon Exposure Pathway is not used radon diffusion coefficient Contaminated soil P 3 m2/s Not Used The Radon Exposure Pathway is not used zone radon diffusion coefficient Radon vertical P 3 m Not Used The Radon Exposure Pathway is not used dimension of mixing Building air exchange P, B 3 1/hr Not Used The Radon Exposure Pathway is not used rate Building (room) height P 3 m Not Used The Radon Exposure Pathway is not used Building indoor area P 3 - Not Used The Radon Exposure Pathway is not used factor Foundation depth P 3 m Not Used The Radon Exposure Pathway is not used below ground surface Radon-222 emanation P 3 - Not Used The Radon Exposure Pathway is not used coefficient Page 6-76
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-A, RESRAD Parameters for Soil Dose Modeling Probabilistic Analysis Parameter Parameter Class1 Priority2 Units Basis for Parameter Selection Value Radon-220 emanation P 3 - Not Used The Radon Exposure Pathway is not used coefficient Indoor time fraction B 3 - 0.114 50% of a work year (2000 hrs.) spent inside an industrial facility Outdoor time fraction B 3 - 0.114 50% of a work year (2000 hrs.) spent outside at an industrial facility Exposure duration B 3 yr 30 Behavioral priority 3 RESRAD v6.22 default value 1
Parameter Classification: P = Physical; B = Behavioral; M = Metabolic 2
1 = high priority parameter, 2 = medium priority parameter, 3 = low priority parameter Page 6-77
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Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological April 2006 Criteria for License Termination Appendix 6-B, RESRAD Sensitivity Analysis Distribution Parameters Distributions Statistical Parameters2 1
Parameter Priority Distribution 1 2 3 4 Density of contaminated zone 1 Normal 1.330 0.202 - -
Density of saturated zone 1 Normal 1.578 0.158 - -
Contaminated zone distribution 1 Truncated lognormal-n 2.40 3.22 0.001 0.999 coefficient for C Contaminated zone distribution 1 Truncated lognormal-n 6.05 1.46 0.001 0.999 coefficient for Ni Contaminated zone distribution 1 Truncated lognormal-n 5.46 2.53 0.001 0.999 coefficient for Co Contaminated zone distribution 1 Truncated lognormal-n 3.45 2.12 0.001 0.999 coefficient for Sr Contaminated zone distribution 1 Truncated lognormal-n 6.10 2.33 0.001 0.999 coefficient for Cs-134 Contaminated zone distribution 1 Truncated lognormal-n 6.10 2.33 0.001 0.999 coefficient for Cs-137 Unsaturated zone 1 distribution 1 Truncated lognormal-n 2.40 3.22 0.001 0.999 coefficient for C Unsaturated zone 1 distribution 1 Truncated lognormal-n 6.05 1.46 0.001 0.999 coefficient for Ni Unsaturated zone 1 distribution 1 Truncated lognormal-n 5.46 2.53 0.001 0.999 coefficient for Co Unsaturated zone 1 distribution 1 Truncated lognormal-n 3.45 2.12 0.001 0.999 coefficient for Sr Unsaturated zone 1 distribution 1 Truncated lognormal-n 6.10 2.33 0.001 0.999 coefficient for Cs-134 Unsaturated zone 1 distribution 1 Truncated lognormal-n 6.10 2.33 0.001 0.999 coefficient for Cs-137 Unsaturated zone 2 distribution 1 Truncated lognormal-n 2.40 3.22 0.001 0.999 coefficient for C Unsaturated zone 2 distribution 1 Truncated lognormal-n 6.05 1.46 0.001 0.999 coefficient for Ni Unsaturated zone 2 distribution 1 Truncated lognormal-n 5.46 2.53 0.001 0.999 coefficient for Co Unsaturated zone 2 distribution 1 Truncated lognormal-n 3.45 2.12 0.001 0.999 coefficient for Sr Unsaturated zone 2 distribution 1 Truncated lognormal-n 6.10 2.33 0.001 0.999 coefficient for Cs-134 Unsaturated zone 2 distribution 1 Truncated lognormal-n 6.10 2.33 0.001 0.999 coefficient for Cs-137 Unsaturated zone 3 distribution 1 Truncated lognormal-n 2.40 3.22 0.001 0.999 coefficient for C Unsaturated zone 3 distribution 1 Truncated lognormal-n 6.05 1.46 0.001 0.999 coefficient for Ni Unsaturated zone 3 distribution 1 Truncated lognormal-n 5.46 2.53 0.001 0.999 coefficient for Co Unsaturated zone 3 distribution 1 Truncated lognormal-n 3.45 2.12 0.001 0.999 coefficient for Sr Unsaturated zone 3 distribution 1 Truncated lognormal-n 6.10 2.33 0.001 0.999 coefficient for Cs-134 Unsaturated zone 3 distribution 1 Truncated lognormal-n 6.10 2.33 0.001 0.999 coefficient for Cs-137 Unsaturated zone 4 distribution 1 Truncated lognormal-n 2.40 3.22 0.001 0.999 coefficient for C Unsaturated zone 4 distribution 1 Truncated lognormal-n 6.05 1.46 0.001 0.999 coefficient for Ni Unsaturated zone 4 distribution 1 Truncated lognormal-n 5.46 2.53 0.001 0.999 coefficient for Co Unsaturated zone 4 distribution 1 Truncated lognormal-n 3.45 2.12 0.001 0.999 coefficient for Sr Unsaturated zone 4 distribution 1 Truncated lognormal-n 6.10 2.33 0.001 0.999 coefficient for Cs-134 Page 6-79
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological April 2006 Criteria for License Termination Appendix 6-B, RESRAD Sensitivity Analysis Distribution Parameters Distributions Statistical Parameters2 1
Parameter Priority Distribution 1 2 3 4 Unsaturated zone 4 distribution 1 Truncated lognormal-n 6.10 2.33 0.001 0.999 coefficient for Cs-137 Saturated zone distribution 1 Truncated lognormal-n 2.40 3.22 0.001 0.999 coefficient for C Saturated zone distribution 1 Truncated lognormal-n 6.05 1.46 0.001 0.999 coefficient for Ni Saturated zone distribution 1 Truncated lognormal-n 5.46 2.53 0.001 0.999 coefficient for Co Saturated zone distribution 1 Truncated lognormal-n 3.45 2.12 0.001 0.999 coefficient for Sr Saturated zone distribution 1 Truncated lognormal-n 6.10 2.33 0.001 0.999 coefficient for Cs-134 Saturated zone distribution 1 Truncated lognormal-n 6.10 2.33 0.001 0.999 coefficient for Cs-137 Contaminated zone b parameter 2 Bounded lognormal-n 1.06 0.66 0.5 30 3
Contaminated zone erosion rate 2 Continuous logarithmic Default - - -
Contaminated zone total porosity 2 Truncated normal 0.425 0.0867 0.001 0.999 Contaminated zone hydraulic 2 Lognormal 3.302 62 - -
conductivity Depth of soil mixing layer 2 Triangular 0.0 0.6 0.15 -
Drinking water intake 2 Truncated lognormal-n 6.015 0.489 0.001 0.999 Evapotranspiration coefficient 2 Uniform 0.5 0.75 - -
External gamma shielding factor 2 Bounded lognormal-n -1.3 0.59 0.044 1 Indoor dust filtration factor 2 Uniform 0.15 0.95 - -
3 Mass loading for inhalation 2 Continuous linear Default - - -
Runoff coefficient 2 Uniform 0.1 0.8 - -
Saturated zone b parameter 2 Bounded lognormal-n 1.06 0.66 0.5 30 Saturated zone hydraulic gradient 2 Bounded lognormal-n -5.11 1.77 7E-05 0.5 Soil ingestion rate 2 Triangular 0 36.5 18.3 -
Unsaturated zone 1 density 2 Normal 1.33 0.202 - -
Unsaturated zone 1 effective 2 Truncated normal 0.425 0.110 0.0839 0.766 porosity Unsaturated zone 1 hydraulic 2 Bounded lognormal-n 2.66 0.475 3.302 62.2 conductivity Unsaturated zone 1 b parameter 2 Bounded lognormal-n 1.16 0.140 2.06 4.89 Unsaturated zone 1 total porosity 2 Truncated normal 0.46 0.11 0.1161 0.7959 Unsaturated zone 2 density 2 Normal 1.578 0.158 - -
Unsaturated zone 2 effective 2 Truncated normal 0.383 0.0610 0.195 0.572 porosity Unsaturated zone 2 hydraulic 2 Bounded lognormal-n 1.398 1.842 110 5870 conductivity Unsaturated zone 2 b parameter 2 Bounded lognormal-n -0.0253 0.216 0.501 1.90 Unsaturated zone 2 total porosity 2 Truncated normal 0.43 0.06 0.2446 0.6154 Unsaturated zone 3 density 2 Normal 1.33 0.202 - -
Unsaturated zone 3 hydraulic 2 Bounded lognormal-n 2.66 0.475 3.302 62.2 conductivity Unsaturated zone 3 b parameter 2 Bounded lognormal-n 1.16 0.140 2.06 4.89 Unsaturated zone 4 density 2 Normal 1.578 0.158 - -
Unsaturated zone 4 hydraulic 2 Bounded lognormal-n 1.398 1.842 110 5870 conductivity Unsaturated zone 4 b parameter 2 Bounded lognormal-n -0.0253 0.216 0.501 1.90 Thickness of evasion layer of C-14 in 2 Triangular 0.5 1.0 0.75 -
soil Unsaturated zone 1 field capacity 3 Truncated normal 0.236 0.0578 0.0575 0.415 Unsaturated zone 2 field capacity 3 Truncated normal 0.0607 0.0150 0.0280 0.124 Inhalation rate 3 Triangular 4,380 13,100 8,400 -
Page 6-80
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological April 2006 Criteria for License Termination Appendix 6-B, RESRAD Sensitivity Analysis Distribution Parameters Notes:
1 1 = high priority parameter, 2 = medium priority parameter, 3 = low priority parameter 2
Distributions Statistical Parameter Bounded lognormal-n: 1 = underlying mean value, 2 = underlying standard deviation, 3 = lower limit, 4
= upper limit Lognormal: 1 = mean, 2 = error factor Normal: 1 = mean, 2 = standard deviation Triangular: 1 = minimum, 2 = maximum, 3 = most likely Truncated lognormal-n: 1 = underlying mean value, 2 = underlying standard deviation, 3 = lower quantile, 4 = upper quantile Truncated normal: 1 = mean, 2 = standard deviation, 3 = lower quantile, 4 = upper quantile Uniform: 1 = minimum, 2 = maximum 3
Default RESRAD v6.22 distribution parameters were used Page 6-81
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological April 2006 Criteria for License Termination Appendix 6-B, RESRAD Sensitivity Analysis Distribution Parameters This page intentionally left blank Page 6-82
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological April 2006 Criteria for License Termination Appendix 6-C, RESRAD Distribution Parameter Sensitivity Analysis Results Uncorrelated Parameter Results Correlated Parameter Results Parameter 25% or Assigned 25% or Assigned PRCC PRCC 75% Parameter 75% Parameter Value Value Quartile Value Quartile Value Density of contaminated zone 0.79 75% 1.47 0.75 75% 1.47 Density of saturated zone -0.10 No Distribution -0.10 No Distribution Contaminated zone distribution 0.12 No Distribution 0.14 No Distribution coefficient for C Contaminated zone distribution 0.13 No Distribution 0.13 No Distribution coefficient for Ni Contaminated zone distribution -0.03 No Distribution -0.02 No Distribution coefficient for Co Contaminated zone distribution 0.11 No Distribution 0.10 No Distribution coefficient for Sr Contaminated zone distribution 0.08 No Distribution 0.09 No Distribution coefficient for Cs-134 Contaminated zone distribution 0.29 75% 2130 0.29 75% 2130 coefficient for Cs-137 Unsaturated zone 1 distribution -0.04 No Distribution -0.04 No Distribution coefficient for C Unsaturated zone 1 distribution 0.01 No Distribution 0.02 No Distribution coefficient for Ni Unsaturated zone 1 distribution -0.07 No Distribution -0.06 No Distribution coefficient for Co Unsaturated zone 1 distribution -0.10 No Distribution -0.09 No Distribution coefficient for Sr Unsaturated zone 1 distribution 0.10 No Distribution 0.10 No Distribution coefficient for Cs-134 Unsaturated zone 1 distribution -0.02 No Distribution -0.02 No Distribution coefficient for Cs-137 Unsaturated zone 2 distribution -0.08 No Distribution -0.08 No Distribution coefficient for C Unsaturated zone 2 distribution -0.05 No Distribution -0.05 No Distribution coefficient for Ni Unsaturated zone 2 distribution 0.01 No Distribution 0.01 No Distribution coefficient for Co Unsaturated zone 2 distribution 0.02 No Distribution 0.01 No - Distribution coefficient for Sr Unsaturated zone 2 distribution 0.04 No Distribution 0.05 No Distribution coefficient for Cs-134 Unsaturated zone 2 distribution 0.03 No Distribution 0.03 No Distribution coefficient for Cs-137 Unsaturated zone 3 distribution 0.02 No Distribution 0.03 No Distribution coefficient for C Unsaturated zone 3 distribution -0.04 No Distribution -0.04 No Distribution coefficient for Ni Unsaturated zone 3 distribution -0.01 No Distribution 0.01 No Distribution coefficient for Co Unsaturated zone 3 distribution 0.02 No Distribution 0.02 No Distribution coefficient for Sr Unsaturated zone 3 distribution 0.00 No Distribution 0.01 No Distribution coefficient for Cs-134 Unsaturated zone 3 distribution -0.01 No Distribution -0.02 No Distribution coefficient for Cs-137 Unsaturated zone 4 distribution 0.02 No Distribution 0.02 No Distribution coefficient for C Unsaturated zone 4 distribution 0.00 No Distribution 0.00 No Distribution coefficient for Ni Unsaturated zone 4 distribution -0.03 No Distribution -0.04 No Distribution coefficient for Co Unsaturated zone 4 distribution -0.02 No Distribution -0.02 No Distribution coefficient for Sr Page 6-83
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological April 2006 Criteria for License Termination Appendix 6-C, RESRAD Distribution Parameter Sensitivity Analysis Results Uncorrelated Parameter Results Correlated Parameter Results Parameter 25% or Assigned 25% or Assigned PRCC PRCC 75% Parameter 75% Parameter Value Value Quartile Value Quartile Value Unsaturated zone 4 distribution 0.04 No Distribution 0.01 No Distribution coefficient for Cs-134 Unsaturated zone 4 distribution -0.08 No Distribution -0.07 No Distribution coefficient for Cs-137 Saturated zone distribution 0.02 No Distribution 0.02 No Distribution coefficient for C Saturated zone distribution 0.00 No Distribution 0.00 No Distribution coefficient for Ni Saturated zone distribution -0.11 No Distribution -0.11 No Distribution coefficient for Co Saturated zone distribution 0.07 No Distribution 0.07 No Distribution coefficient for Sr Saturated zone distribution 0.06 No Distribution 0.07 No Distribution coefficient for Cs-134 Saturated zone distribution 0.03 No Distribution 0.02 No Distribution coefficient for Cs-137 Contaminated zone b parameter 0.06 No Distribution 0.04 No Distribution Contaminated zone erosion rate -0.29 25% 0.000759 -0.23 No Distribution Contaminated zone total porosity 0.04 No Distribution 0.04 No Distribution Contaminated zone hydraulic 0.07 No Distribution 0.06 No Distribution conductivity Depth of soil mixing layer 0.05 No Distribution 0.05 No Distribution Drinking water intake -0.05 No Distribution -0.04 No Distribution Evapotranspiration coefficient 0.11 No Distribution 0.10 No Distribution External gamma shielding factor 0.95 75% 0.397 0.95 75% 0.397 Indoor dust filtration factor -0.01 No Distribution 0.00 No Distribution Mass loading for inhalation -0.14 No Distribution -0.13 No Distribution Runoff coefficient 0.04 No Distribution -0.03 No Distribution Saturated zone b parameter 0.05 No Distribution 0.04 No Distribution Saturated zone hydraulic gradient -0.06 No Distribution -0.06 No Distribution Soil ingestion rate -0.01 No Distribution -0.01 No Distribution Unsaturated zone 1 density -0.03 No Distribution 0.01 No Distribution Unsaturated zone 1 effective 0.00 No Distribution -0.04 No Distribution porosity Unsaturated zone 1 hydraulic -0.04 No Distribution -0.05 No Distribution conductivity Unsaturated zone 1 b parameter 0.05 No Distribution 0.05 No Distribution Unsaturated zone 1 total porosity -0.07 No Distribution 0.03 No Distribution Unsaturated zone 2 density 0.03 No Distribution -0.07 No Distribution Unsaturated zone 2 effective 0.09 No Distribution 0.08 No Distribution porosity Unsaturated zone 2 hydraulic -0.06 No Distribution -0.05 No Distribution conductivity Unsaturated zone 2 b parameter -0.06 No Distribution -0.07 No Distribution Unsaturated zone 2 total porosity 0.00 No Distribution -0.08 No Distribution Unsaturated zone 3 density -0.07 No Distribution -0.01 No Distribution Unsaturated zone 3 hydraulic 0.02 No Distribution 0.00 No Distribution conductivity Unsaturated zone 3 b parameter -0.20 No Distribution -0.19 No Distribution Unsaturated zone 4 density 0.05 No Distribution -0.07 No Distribution Unsaturated zone 4 hydraulic 0.00 No Distribution 0.00 No Distribution conductivity Unsaturated zone 4 b parameter -0.04 No Distribution -0.06 No Distribution Thickness of evasion layer of C-14 -0.02 No Distribution -0.02 No Distribution in soil Unsaturated zone 1 field capacity -0.05 No Distribution -0.05 No Distribution Unsaturated zone 2 field capacity 0.04 No Distribution 0.04 No Distribution Inhalation rate 0.08 No Distribution 0.10 No Distribution Page 6-84
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-D, RESRAD Parameters for Probabilistic Analysis of Discounted Radionuclides Parameter Parameter Class1 Priority2 Units Basis for Parameter Selection Value Contamination Thickness of P 2 m 0.15 Assigned value contaminated zone Area of contaminated P 2 m2 10,000 Default RESRAD v6.22 Physical priority 2 value acceptable for zone this preliminary evaluation Shape of the P 3 - Circular Default RESRAD v6.22 Physical priority 3 value acceptable for contaminated zone this evaluation Initial concentration of P 2 pCi/g Table 6-4 MDA values for discounted radionuclides obtained by onsite discounted Decayed MDA gamma isotopic analysis and by GEL for sample number radionuclides in soil values SC 8100010 DS08A1 (spent fuel cooler pad soil)
Initial concentration of P 3 pCi/L 0 Not used for this evaluation radionuclides present in ground water Leach rate P 3 1/yr 0 Default Physical value to invoke the calculation of this parameter via a first-order leaching model that uses the value of the soil/water distribution coefficient in the contaminated zone Solubility limit P 3 mol/L 0 Default Physical value - not used by RESRAD v6.22 with leach rate flag set to 0 Time since placement P 3 yr 0 Default RESRAD v6.22 Physical priority 3 value acceptable for of material this evaluation Times for calculation P 3 yr 1, 3, 10, 30, Default RESRAD v6.22 Physical priority 3 value acceptable for 100, 300, 1000 this evaluation Contaminated zone P 1 g/cm3 1.47 Assigned sensitive parameter value based on sensitivity analysis density Contaminated zone P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for H distribution Contaminated zone P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Na distribution Contaminated zone P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Fe distribution Page 6-85
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-D, RESRAD Parameters for Probabilistic Analysis of Discounted Radionuclides Parameter Parameter Class1 Priority2 Units Basis for Parameter Selection Value Contaminated zone P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Ni distribution Contaminated zone P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Nb distribution Contaminated zone P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Tc distribution Contaminated zone P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Ag distribution Contaminated zone P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Sb distribution Contaminated zone P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Pm distribution Contaminated zone P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Sm distribution Contaminated zone P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Eu distribution Contaminated zone P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Gd distribution Contaminated zone P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Np distribution Contaminated zone P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Th distribution Page 6-86
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-D, RESRAD Parameters for Probabilistic Analysis of Discounted Radionuclides Parameter Parameter Class1 Priority2 Units Basis for Parameter Selection Value Contaminated zone P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Pm distribution Contaminated zone P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for U distribution Contaminated zone P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Pu distribution Contaminated zone P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Pb distribution Contaminated zone P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Ra distribution Contaminated zone P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Ac distribution Contaminated zone P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Pa distribution Contaminated zone P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Am distribution Contaminated zone P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Cm distribution Use plant/soil ratio NA 3 Check No For purposes of this evaluation, the code should not be allowed to box calculate the distribution coefficients from the plant root uptake factors because they are calculated probabilistically Contaminated zone P 3 - 0.2 Default RESRAD v6.22 Physical priority 3 value acceptable for field capacity this evaluation Contaminated zone P,B 2 m/yr Continuous NUREG/CR-6697, Attachment C erosion rate logarithmic distribution Page 6-87
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-D, RESRAD Parameters for Probabilistic Analysis of Discounted Radionuclides Parameter Parameter Class1 Priority2 Units Basis for Parameter Selection Value Contaminated zone P 2 - Truncated NUREG/CR-6697, Attachment C total porosity normal distribution Contaminated zone P 2 m/yr Lognormal NUREG/CR-6697, Attachment C hydraulic conductivity Contaminated zone b P 2 - Bounded NUREG/CR-6697, Attachment C parameter lognormal-n distribution Carbon-Model Parameters Thickness of evasion P 2 m Not Used C-14 is not a discounted radionuclide layer of C-14 in soil C-14 evasion flux rate P 3 1/s Not Used C-14 is not a discounted radionuclide from soil C-12 concentration in P 3 g/cm3 Not Used C-14 is not a discounted radionuclide local water C-12 concentration in P 3 g/g Not Used C-14 is not a discounted radionuclide contaminated soil Fraction of vegetation P 3 - Not Used C-14 is not a discounted radionuclide carbon absorbed from soil Fraction of vegetation P 3 - Not Used C-14 is not a discounted radionuclide carbon absorbed from air C-12 evasion flux rate P 3 1/s Not Used C-14 is not a discounted radionuclide from soil Grain fraction in beef B 3 - Not Used C-14 is not a discounted radionuclide cattle feed Grain fraction in milk B 3 - Not Used C-14 is not a discounted radionuclide cow feed DCF correction factor P 3 - Not Used C-14 is not a discounted radionuclide for gaseous forms of C-14 Soil Cover depth P 2 m 0 The contamination is assumed to be on surface soil Page 6-88
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-D, RESRAD Parameters for Probabilistic Analysis of Discounted Radionuclides Parameter Parameter Class1 Priority2 Units Basis for Parameter Selection Value Density of cover P 1 g/cm3 Not Used A cover is not used in this evaluation material Cover total porosity P 3 - Not Used Radon is not used in this evaluation Cover volumetric P 3 - Not Used Radon is not used in this evaluation water content Cover radon diffusion P 3 m2/s Not Used Radon is not used in this evaluation coefficient Cover erosion rate P,B 2 m/yr Not Used A cover is not used in this evaluation Number of P 3 - 4 Simplified hydrogeological model assumption unsaturated zones Unsaturated zone 1 P 1 m 0.305 Thickness of silt layer above the sand layer thickness Unsaturated zone 1 P 2 g/cm3 Normal NUREG/CR-6767, Attachment C, Table C-1 distribution for silt density distribution Unsaturated zone 1 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for H distribution Unsaturated zone 1 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Na distribution Unsaturated zone 1 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Fe distribution Unsaturated zone 1 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Ni distribution Unsaturated zone 1 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Nb distribution Unsaturated zone 1 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Tc distribution Unsaturated zone 1 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Ag distribution Page 6-89
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-D, RESRAD Parameters for Probabilistic Analysis of Discounted Radionuclides Parameter Parameter Class1 Priority2 Units Basis for Parameter Selection Value Unsaturated zone 1 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Sb distribution Unsaturated zone 1 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Pm distribution Unsaturated zone 1 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Sm distribution Unsaturated zone 1 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Eu distribution Unsaturated zone 1 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Gd distribution Unsaturated zone 1 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Np distribution Unsaturated zone 1 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Th distribution Unsaturated zone 1 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Pm distribution Unsaturated zone 1 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for U distribution Unsaturated zone 1 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Pu distribution Unsaturated zone 1 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Pb distribution Page 6-90
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-D, RESRAD Parameters for Probabilistic Analysis of Discounted Radionuclides Parameter Parameter Class1 Priority2 Units Basis for Parameter Selection Value Unsaturated zone 1 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Ra distribution Unsaturated zone 1 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Ac distribution Unsaturated zone 1 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Pa distribution Unsaturated zone 1 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Am distribution Unsaturated zone 1 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Cm distribution Unsaturated zone 1 P 2 - Truncated NUREG/CR-6697, Attachment C, Table 3.2-1 distribution for silt total porosity normal distribution Unsaturated zone 1 P 2 - Truncated NUREG/CR-6767, Attachment A, Table A-7 distribution for silt effective porosity normal distribution Unsaturated zone 1 P 3 - Truncated NUREG/CR-6767, Attachment A, Table A-7 distribution for silt field capacity normal distribution Unsaturated zone 1 P 2 m/yr Bounded NUREG/CR-6697, Attachment C, Table 3.4-1 for silt hydraulic lognormal-n conductivity distribution Unsaturated zone 1 P 2 - Bounded NUREG/CR-6697, Attachment C, Table 3.5-1 for silt soil-specific b lognormal-n parameter distribution Unsaturated zone 2 P 1 m 3.05 Thickness of fine sand layer above the siltstone layer thickness Unsaturated zone 2 P 2 g/cm3 Normal NUREG/CR-6767, Attachment C, Table C-1 distribution for sand density distribution Page 6-91
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-D, RESRAD Parameters for Probabilistic Analysis of Discounted Radionuclides Parameter Parameter Class1 Priority2 Units Basis for Parameter Selection Value Unsaturated zone 2 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for H distribution Unsaturated zone 2 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Na distribution Unsaturated zone 2 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Fe distribution Unsaturated zone 2 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Ni distribution Unsaturated zone 2 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Nb distribution Unsaturated zone 2 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Tc distribution Unsaturated zone 2 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Ag distribution Unsaturated zone 2 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Sb distribution Unsaturated zone 2 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Pm distribution Unsaturated zone 2 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Sm distribution Unsaturated zone 2 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Eu distribution Page 6-92
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-D, RESRAD Parameters for Probabilistic Analysis of Discounted Radionuclides Parameter Parameter Class1 Priority2 Units Basis for Parameter Selection Value Unsaturated zone 2 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Gd distribution Unsaturated zone 2 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Np distribution Unsaturated zone 2 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Th distribution Unsaturated zone 2 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Pm distribution Unsaturated zone 2 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for U distribution Unsaturated zone 2 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Pu distribution Unsaturated zone 2 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Pb distribution Unsaturated zone 2 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Ra distribution Unsaturated zone 2 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Ac distribution Unsaturated zone 2 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Pa distribution Unsaturated zone 2 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Am distribution Page 6-93
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-D, RESRAD Parameters for Probabilistic Analysis of Discounted Radionuclides Parameter Parameter Class1 Priority2 Units Basis for Parameter Selection Value Unsaturated zone 2 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Cm distribution Unsaturated zone 2 P 2 - Truncated NUREG/CR-6697, Attachment C, Table 3.2-1 distribution for sand total porosity normal distribution Unsaturated zone 2 P 2 - Truncated NUREG/CR-6767, Attachment A, Table A-1 distribution for sand effective porosity normal distribution Unsaturated zone 2 P 3 - Truncated NUREG/CR-6767, Attachment A, Table A-1 distribution for sand field capacity normal distribution Unsaturated zone 2 P 2 m/yr Bounded NUREG/CR-6697, Attachment C, Table 3.4-1 for sand hydraulic lognormal-n conductivity distribution Unsaturated zone 2 P 2 - Bounded NUREG/CR-6697, Attachment C, Table 3.5-1 for sand soil-specific b lognormal-n parameter distribution Unsaturated zone 3 P 1 m 25.60 Thickness of siltstone layer thickness Unsaturated zone 3 P 2 g/cm3 Normal NUREG/CR-6767, Attachment C, Table C-1 distribution for silt density distribution Unsaturated zone 3 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for H distribution Unsaturated zone 3 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Na distribution Unsaturated zone 3 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Fe distribution Unsaturated zone 3 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Ni distribution Page 6-94
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-D, RESRAD Parameters for Probabilistic Analysis of Discounted Radionuclides Parameter Parameter Class1 Priority2 Units Basis for Parameter Selection Value Unsaturated zone 3 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Nb distribution Unsaturated zone 3 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Tc distribution Unsaturated zone 3 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Ag distribution Unsaturated zone 3 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Sb distribution Unsaturated zone 3 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Pm distribution Unsaturated zone 3 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Sm distribution Unsaturated zone 3 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Eu distribution Unsaturated zone 3 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Gd distribution Unsaturated zone 3 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Np distribution Unsaturated zone 3 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Th distribution Unsaturated zone 3 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Pm distribution Page 6-95
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-D, RESRAD Parameters for Probabilistic Analysis of Discounted Radionuclides Parameter Parameter Class1 Priority2 Units Basis for Parameter Selection Value Unsaturated zone 3 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for U distribution Unsaturated zone 3 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Pu distribution Unsaturated zone 3 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Pb distribution Unsaturated zone 3 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Ra distribution Unsaturated zone 3 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Ac distribution Unsaturated zone 3 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Pa distribution Unsaturated zone 3 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Am distribution Unsaturated zone 3 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Cm distribution Unsaturated zone 3 P 2 - 0.35 RESRAD Data Collection Handbook Table 3.2 arithmetic mean for total porosity medium siltstone Unsaturated zone 3 P 2 - 0.12 RESRAD Data Collection Handbook Table 3.2 arithmetic mean for effective porosity medium siltstone Unsaturated zone 3 P 3 - 0.23 Total porosity minus effective porosity per RESRAD Data field capacity Collection Handbook, Section 4.1 Unsaturated zone 3 P 2 m/yr Bounded NUREG/CR-6697, Attachment C, Table 3.4-1 for silt hydraulic lognormal-n conductivity distribution Page 6-96
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-D, RESRAD Parameters for Probabilistic Analysis of Discounted Radionuclides Parameter Parameter Class1 Priority2 Units Basis for Parameter Selection Value Unsaturated zone 3 P 2 - Bounded NUREG/CR-6697, Attachment C, Table 3.5-1 for silt soil-specific b lognormal-n parameter distribution Unsaturated zone 4 P 1 m 10.82 Thickness of unsaturated sandstone layer thickness Unsaturated zone 4 P 2 g/cm3 Normal NUREG/CR-6767, Attachment C, Table C-1 distribution for sand density distribution Unsaturated zone 4 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for H distribution Unsaturated zone 4 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Na distribution Unsaturated zone 4 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Fe distribution Unsaturated zone 4 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Ni distribution Unsaturated zone 4 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Nb distribution Unsaturated zone 4 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Tc distribution Unsaturated zone 4 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Ag distribution Unsaturated zone 4 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Sb distribution Unsaturated zone 4 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Pm distribution Page 6-97
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-D, RESRAD Parameters for Probabilistic Analysis of Discounted Radionuclides Parameter Parameter Class1 Priority2 Units Basis for Parameter Selection Value Unsaturated zone 4 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Sm distribution Unsaturated zone 4 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Eu distribution Unsaturated zone 4 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Gd distribution Unsaturated zone 4 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Np distribution Unsaturated zone 4 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Th distribution Unsaturated zone 4 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Pm distribution Unsaturated zone 4 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for U distribution Unsaturated zone 4 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Pu distribution Unsaturated zone 4 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Pb distribution Unsaturated zone 4 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Ra distribution Unsaturated zone 4 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Ac distribution Page 6-98
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-D, RESRAD Parameters for Probabilistic Analysis of Discounted Radionuclides Parameter Parameter Class1 Priority2 Units Basis for Parameter Selection Value Unsaturated zone 4 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Pa distribution Unsaturated zone 4 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Am distribution Unsaturated zone 4 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Cm distribution Unsaturated zone 4 P 2 - 0.35 RESRAD Data Collection Handbook Table 3.2 arithmetic mean for total porosity sandstone Unsaturated zone 4 P 2 - 0.27 RESRAD Data Collection Handbook Table 3.2 arithmetic mean for effective porosity sandstone Unsaturated zone 4 P 3 - 0.07 Total porosity minus effective porosity per RESRAD Data field capacity Collection Handbook, Section 4.1 Unsaturated zone 4 P 2 m/yr 10 Upper boundary value from RESRAD Data Collection Handbook, hydraulic Table 5.1 for sandstone conductivity Unsaturated zone 4 P 2 - Bounded NUREG/CR-6697, Attachment C, Table 3.5-1 for sand soil-specific b lognormal-n parameter distribution Water Density of saturated P 1 g/cm3 Normal NUREG/CR-6767, Attachment C, Table C-1 distribution for sand zone distribution Saturated zone P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for H distribution Saturated zone P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Na distribution Saturated zone P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Fe distribution Page 6-99
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-D, RESRAD Parameters for Probabilistic Analysis of Discounted Radionuclides Parameter Parameter Class1 Priority2 Units Basis for Parameter Selection Value Saturated zone P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Ni distribution Saturated zone P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Nb distribution Saturated zone P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Tc distribution Saturated zone P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Ag distribution Saturated zone P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Sb distribution Saturated zone P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Pm distribution Saturated zone P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Sm distribution Saturated zone P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Eu distribution Saturated zone P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Gd distribution Saturated zone P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Np distribution Saturated zone P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Th distribution Page 6-100
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-D, RESRAD Parameters for Probabilistic Analysis of Discounted Radionuclides Parameter Parameter Class1 Priority2 Units Basis for Parameter Selection Value Saturated zone P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Pm distribution Saturated zone P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for U distribution Saturated zone P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Pu distribution Saturated zone P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Pb distribution Saturated zone P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Ra distribution Saturated zone P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Ac distribution Saturated zone P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Pa distribution Saturated zone P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Am distribution Saturated zone P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Cm distribution Saturated zone total P 1 - 0.34 RESRAD Data Collection Handbook Table 3.2 arithmetic mean for porosity sandstone Saturated zone P 1 - 0.27 RESRAD Data Collection Handbook Table 3.2 arithmetic mean for effective porosity sandstone Saturated zone field P 3 - 0.07 Total porosity minus effective porosity per RESRAD Data capacity Collection Handbook, Section 4.1 Page 6-101
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-D, RESRAD Parameters for Probabilistic Analysis of Discounted Radionuclides Parameter Parameter Class1 Priority2 Units Basis for Parameter Selection Value Saturated zone P 1 m/yr 10 Upper boundary value from RESRAD Data Collection Handbook, hydraulic Table 5.1 for sandstone conductivity Saturated zone P 2 - Bounded NUREG/CR-6697, Attachment C hydraulic gradient lognormal-n distribution Saturated zone soil- P 2 - Bounded NUREG/CR-6697, Attachment C specific b parameter lognormal-n distribution Length of P 2 m 113 Diameter of an 10,000 m2 contaminated zone contaminated zone parallel to the aquifer flow Water table drop rate P 3 m/yr 0.783 Site specific value applicable to the RSNGS site as reported in the FSAR, Appendix 2C Well-pump intake P 2 m 23 Site specific value applicable to the RSNGS site as reported in the depth (below water FSAR, Appendix 2C table)
Well pumping rate B, P 2 m3/yr Not Used Well pumping rate is not used with the Mass-Balance model for water transport selected - well pumping rate is used to calculated a dilution factor when the Non- Dispersion model is selected.
Model: non-dispersion NA 3 - MB The mass-balance model was chosen as the most conservative or mass balance since it assumes that all of the radionuclides released from the contaminated zone are withdrawn through the well.
Evapotranspiration P 2 - Uniform NUREG/CR-6697, Attachment C coefficient distribution Humidity in air P 3 g/m3 Not Used Not used when the Radon exposure pathway is suppressed Average annual wind P 2 m/s 3.13 7 mph average annual wind speed for the years of 1930 - 1996 speed reported by the National Climatic Data Center for Stockton, CA (http://www.ncdc.noaa.gov/oa/documentlibrary/wind/wind1996.p df)
Precipitation rate P 2 m/yr 0.38 Mean annual average rainfall measured at Sacramento and Stockton Page 6-102
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-D, RESRAD Parameters for Probabilistic Analysis of Discounted Radionuclides Parameter Parameter Class1 Priority2 Units Basis for Parameter Selection Value Irrigation mode B 3 - Overhead Behavioral value - ditch irrigation is not the principal method of irrigation in the local region Irrigation rate B 3 m/yr 0.2 Behavioral RESRAD v6.22 default value acceptable for this evaluation Runoff coefficient P 2 - Uniform NUREG/CR-6697, Attachment C distribution Watershed area for P 3 m2 1.00E+07 The majority of RSNGS site drains into Clay Creek nearby stream or pond Accuracy for water soil NA 3 - 0.001 Default RESRAD v6.22 value acceptable for this evaluation computation Ingestion Fruit, vegetable, and M, B 2 kg/yr Not Used Not used with ingestion exposure pathways suppressed in grain consumption accordance with the Industrial Worker Scenario rate Leafy vegetable M, B 3 kg/yr Not Used Not used with ingestion exposure pathways suppressed in consumption accordance with the Industrial Worker Scenario Milk consumption M, B 2 L/yr Not Used Not used with ingestion exposure pathways suppressed in accordance with the Industrial Worker Scenario Meat and poultry M, B 3 kg/yr Not Used Not used with ingestion exposure pathways suppressed in consumption accordance with the Industrial Worker Scenario Fish consumption rate M, B 3 kg/yr Not Used Not used with ingestion exposure pathways suppressed in accordance with the Industrial Worker Scenario Other seafood M, B 3 kg/yr Not Used Not used with ingestion exposure pathways suppressed in consumption rate accordance with the Industrial Worker Scenario Aquatic food B, P 2 - Not Used Not used with ingestion exposure pathways suppressed in contaminated accordance with the Industrial Worker Scenario fraction Soil ingestion rate M, B 2 g/yr Triangular NUREG/CR-6697, Attachment C distribution Drinking water intake M, B 2 L/yr Truncated NUREG/CR-6697, Attachment C lognormal-n distribution Page 6-103
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-D, RESRAD Parameters for Probabilistic Analysis of Discounted Radionuclides Parameter Parameter Class1 Priority2 Units Basis for Parameter Selection Value Storage time for fruits, B 3 d Not Used Not used with ingestion exposure pathways suppressed in non-leafy accordance with the Industrial Worker Scenario vegetables, and grain Storage time for leafy B 3 d Not Used Not used with ingestion exposure pathways suppressed in vegetables accordance with the Industrial Worker Scenario Storage time for milk B 3 d Not Used Not used with ingestion exposure pathways suppressed in accordance with the Industrial Worker Scenario Storage time for meat B 3 d Not Used Not used with ingestion exposure pathways suppressed in accordance with the Industrial Worker Scenario Storage time for fish B 3 d Not Used Not used with ingestion exposure pathways suppressed in accordance with the Industrial Worker Scenario Storage time for B 3 d Not Used Not used with ingestion exposure pathways suppressed in crustacea and accordance with the Industrial Worker Scenario mollusks Storage time for well B 3 d 1 Behavioral RESRAD v6.22 default value water Storage time for B 3 d 1 Behavioral RESRAD v6.22 default value surface water Storage time for B 3 d Not Used Not used with ingestion exposure pathways suppressed in livestock fodder accordance with the Industrial Worker Scenario Drinking water B, P 3 - 1 Default RESRAD v6.22 Behavioral/Physical value acceptable for contaminated this evaluation fraction Household water B, P 3 - Not Used Not used when the radon exposure pathway is suppressed contaminated fraction Livestock water B, P 3 - Not Used Not used with ingestion exposure pathways suppressed in contaminated accordance with the Industrial Worker Scenario fraction Irrigation water B, P 3 - Not Used Not used with ingestion exposure pathways suppressed in contaminated accordance with the Industrial Worker Scenario fraction Page 6-104
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-D, RESRAD Parameters for Probabilistic Analysis of Discounted Radionuclides Parameter Parameter Class1 Priority2 Units Basis for Parameter Selection Value Plant food B, P 3 - Not Used Not used with ingestion exposure pathways suppressed in contaminated accordance with the Industrial Worker Scenario fraction Meat contaminated B, P 3 - Not Used Not used with ingestion exposure pathways suppressed in fraction accordance with the Industrial Worker Scenario Milk contaminated B, P 3 - Not Used Not used with ingestion exposure pathways suppressed in fraction accordance with the Industrial Worker Scenario Livestock fodder M 3 kg/d Not Used Not used with meat and milk exposure pathways suppressed in intake rate for meat accordance with the Industrial Worker Scenario Livestock fodder M 3 kg/d Not Used Not used with meat and milk exposure pathways suppressed in intake rate for milk accordance with the Industrial Worker Scenario Livestock water intake M 3 L/d Not Used Not used with meat and milk exposure pathways suppressed in rate for meat accordance with the Industrial Worker Scenario Livestock water intake M 3 L/d Not Used Not used with meat and milk exposure pathways suppressed in rate for milk accordance with the Industrial Worker Scenario Livestock intake of soil M 3 kg/d Not Used Not used with meat and milk exposure pathways suppressed in accordance with the Industrial Worker Scenario Mass loading for foliar P 3 g/m3 Not Used Not used with vegetation exposure pathways suppressed in deposition accordance with the Industrial Worker Scenario Depth of soil mixing P 2 m Triangular NUREG/CR-6697, Attachment C layer distribution Depth of roots P 1 m Not Used Not used with vegetation exposure pathways suppressed in accordance with the Industrial Worker Scenario Groundwater fractional B, P 3 - 1 Default RESRAD v6.22 Behavioral/Physical priority 3 value usage for drinking acceptable for this evaluation water Groundwater fractional B, P 3 - Not Used Not used when the radon exposure pathway is suppressed usage for household water Groundwater fractional B, P 3 - Not Used Not used with ingestion exposure pathways suppressed in usage for livestock accordance with the Industrial Worker Scenario water Groundwater fractional B, P 3 - Not Used Not used with ingestion exposure pathways suppressed in usage for irrigation accordance with the Industrial Worker Scenario water Page 6-105
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-D, RESRAD Parameters for Probabilistic Analysis of Discounted Radionuclides Parameter Parameter Class1 Priority2 Units Basis for Parameter Selection Value Wet weight crop yield P 2 kg/m2 Not Used Not used with vegetation exposure pathways suppressed in for non-leafy plants accordance with the Industrial Worker Scenario Wet weight crop yield P 3 kg/m2 Not Used Not used with vegetation exposure pathways suppressed in for leafy plants accordance with the Industrial Worker Scenario Wet weight crop yield P 3 kg/m2 Not Used Not used with vegetation exposure pathways suppressed in for fodder accordance with the Industrial Worker Scenario Length of growing P 3 yr Not Used Not used with vegetation exposure pathways suppressed in season for non-leafy accordance with the Industrial Worker Scenario vegetables Length of growing P 3 yr Not Used Not used with vegetation exposure pathways suppressed in season for leafy accordance with the Industrial Worker Scenario vegetables Length of growing P 3 yr Not Used Not used with vegetation exposure pathways suppressed in season for fodder accordance with the Industrial Worker Scenario Translocation factor P 3 - Not Used Not used with vegetation exposure pathways suppressed in for non-leafy accordance with the Industrial Worker Scenario vegetables Translocation factor P 3 - Not Used Not used with vegetation exposure pathways suppressed in for leafy vegetables accordance with the Industrial Worker Scenario Translocation factor P 3 - Not Used Not used with vegetation exposure pathways suppressed in for fodder accordance with the Industrial Worker Scenario Weathering removal P 2 1/yr Not Used Not used with vegetation exposure pathways suppressed in constant accordance with the Industrial Worker Scenario Dry foliar interception P 3 - Not Used Not used with vegetation exposure pathways suppressed in fraction for non-leafy accordance with the Industrial Worker Scenario vegetables Dry foliar interception P 3 - Not Used Not used with vegetation exposure pathways suppressed in fraction for leafy accordance with the Industrial Worker Scenario vegetables Dry foliar interception P 3 - Not Used Not used with vegetation exposure pathways suppressed in fraction for fodder accordance with the Industrial Worker Scenario Wet foliar interception P 3 - Not Used Not used with vegetation exposure pathways suppressed in fraction for non-leafy accordance with the Industrial Worker Scenario vegetables Page 6-106
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-D, RESRAD Parameters for Probabilistic Analysis of Discounted Radionuclides Parameter Parameter Class1 Priority2 Units Basis for Parameter Selection Value Wet foliar interception P 2 - Not Used Not used with vegetation exposure pathways suppressed in fraction for leafy accordance with the Industrial Worker Scenario vegetables Wet foliar interception P 3 - Not Used Not used with vegetation exposure pathways suppressed in fraction for fodder accordance with the Industrial Worker Scenario Slope factor - external M 3 (risk/yr)/ Nuclide specific Metabolic RESRAD v6.22 default priority 3 value acceptable for (pCi/g) this evaluation Slope factor - M 3 risk/pCi Nuclide specific Metabolic RESRAD v6.22 default priority 3 value acceptable for inhalation this evaluation Slope factor - M 3 risk/pCi Nuclide specific Metabolic RESRAD v6.22 default priority 3 value acceptable for ingestion this evaluation Plant transfer factor P 1 - Nuclide specific Not used with ingestion exposure pathways suppressed in
- Not Used accordance with the Industrial Worker Scenario Meat transfer factor P 2 (pCi/kg)/ Nuclide specific Not used with ingestion exposure pathways suppressed in (pCi/d) - Not Used accordance with the Industrial Worker Scenario Milk transfer factor P 2 (pCi/L)/ Nuclide specific Not used with ingestion exposure pathways suppressed in (pCi/d) - Not Used accordance with the Industrial Worker Scenario Bioaccumulation factor P 2 (pCi/kg)/ Nuclide specific Not used with ingestion exposure pathways suppressed in for fish (pCi/L) - Not Used accordance with the Industrial Worker Scenario Bioaccumulation factor P 3 (pCi/kg)/ Nuclide specific Not used with ingestion exposure pathways suppressed in for crustacea and (pCi/L) - Not Used accordance with the Industrial Worker Scenario mollusks Occupancy (Inhalation & External Parameters)
Inhalation rate M, B 3 m3/yr Triangular NUREG/CR-6697, Attachment C distribution Inhalation dose M 3 mrem/pCi Nuclide specific Metabolic RESRAD v6.22 default value conversion factors Ingestion dose M 3 mrem/pCi Nuclide specific Metabolic RESRAD v6.22 default value conversion factors Mass loading for P, B 2 g/m3 Continuous NUREG/CR-6697, Attachment C inhalation linear distribution Indoor dust filtration P, B 2 - Uniform NUREG/CR-6697, Attachment C factor distribution Page 6-107
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-D, RESRAD Parameters for Probabilistic Analysis of Discounted Radionuclides Parameter Parameter Class1 Priority2 Units Basis for Parameter Selection Value External gamma P 2 - 0.397 Assigned sensitive parameter value based on sensitivity analysis shielding factor of detected radionuclides Building foundation P 3 m Not Used The Radon Exposure Pathway is not used thickness Building foundation P 3 g/m3 Not Used The Radon Exposure Pathway is not used bulk density Building foundation P 3 - Not Used The Radon Exposure Pathway is not used total porosity Building foundation P 3 - Not Used The Radon Exposure Pathway is not used volumetric water content Building foundation P 3 m2/s Not Used The Radon Exposure Pathway is not used radon diffusion coefficient Contaminated soil P 3 m2/s Not Used The Radon Exposure Pathway is not used zone radon diffusion coefficient Radon vertical P 3 m Not Used The Radon Exposure Pathway is not used dimension of mixing Building air exchange P, B 3 1/hr Not Used The Radon Exposure Pathway is not used rate Building (room) height P 3 m Not Used The Radon Exposure Pathway is not used Building indoor area P 3 - Not Used The Radon Exposure Pathway is not used factor Foundation depth P 3 m Not Used The Radon Exposure Pathway is not used below ground surface Radon-222 emanation P 3 - Not Used The Radon Exposure Pathway is not used coefficient Radon-220 emanation P 3 - Not Used The Radon Exposure Pathway is not used coefficient Indoor time fraction B 3 - 0.114 50% of a work year (2000 hrs.) spent inside an industrial facility Outdoor time fraction B 3 - 0.114 50% of a work year (2000 hrs.) spent outside at an industrial facility Page 6-108
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-D, RESRAD Parameters for Probabilistic Analysis of Discounted Radionuclides Parameter Parameter Class1 Priority2 Units Basis for Parameter Selection Value Exposure duration B 3 yr 30 Behavioral RESRAD v6.22 default priority 3 value acceptable for this evaluation 1
Parameter Classification: P = Physical; B = Behavioral; M = Metabolic 2
1 = high priority parameter, 2 = medium priority parameter, 3 = low priority parameter Page 6-109
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-D, RESRAD Parameters for Probabilistic Analysis of Discounted Radionuclides This page intentionally left blank Page 6-110
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-E, Distribution Parameters and Sensitivity Analysis Results for Discounted Radionuclides Distributions Statistical Parameters2 Sensitivity Results Parameter Priority1 Distribution 25% or Assigned PRCC 1 2 3 4 75% Parameter Value Quartile Value Density of saturated zone 1 Normal 1.578 0.158 - - -0.11 No Distribution Contaminated zone distribution 1 Truncated lognormal-n -2.81 0.5 0.001 0.999 0.05 No Distribution coefficient for H-3 Contaminated zone distribution 1 Truncated lognormal-n 5.04 3.22 0.001 0.999 0.29 75% 1310 coefficient for Na-22 Contaminated zone distribution 1 Truncated lognormal-n 5.34 2.67 0.001 0.999 0.05 No Distribution coefficient for Fe-55 Contaminated zone distribution 1 Truncated lognormal-n 6.05 1.46 0.001 0.999 0.06 No Distribution coefficient for Ni-59 Contaminated zone distribution 1 Truncated lognormal-n 5.94 3.22 0.001 0.999 0.34 75% 3290 coefficient for Nb-94 Contaminated zone distribution 1 Truncated lognormal-n -0.67 3.16 0.001 0.999 0.00 No Distribution coefficient for Tc-99 Contaminated zone distribution 1 Truncated lognormal-n 5.38 2.10 0.001 0.999 0.30 75% 877 coefficient for Ag-108m Contaminated zone distribution 1 Truncated lognormal-n 5.94 3.22 0.001 0.999 0.37 75% 3300 coefficient for Sb-125 Contaminated zone distribution 1 Truncated lognormal-n 6.72 3.22 0.001 0.999 0.02 No Distribution coefficient for Pm-147 Contaminated zone distribution 1 Truncated lognormal-n 6.72 3.22 0.001 0.999 0.04 No Distribution coefficient for Sm-147 Contaminated zone distribution 1 Truncated lognormal-n 6.72 3.22 0.001 0.999 0.41 75% 7080 coefficient for Eu-152 Contaminated zone distribution 1 Truncated lognormal-n 6.72 3.22 0.001 0.999 0.28 75% 7090 coefficient for Eu-154 Contaminated zone distribution 1 Truncated lognormal-n 6.72 3.22 0.001 0.999 0.05 No Distribution coefficient for Eu-155 Contaminated zone distribution 1 Truncated lognormal-n 6.72 3.22 0.001 0.999 0.02 No Distribution coefficient for Gd-152 Contaminated zone distribution 1 Truncated lognormal-n 2.84 2.25 0.001 0.999 0.72 75% 76.9 coefficient for Np-237 Contaminated zone distribution 1 Truncated lognormal-n 8.68 3.62 0.001 0.999 -0.03 No Distribution coefficient for Th-228 Contaminated zone distribution 1 Truncated lognormal-n 8.68 3.62 0.001 0.999 0.13 No Distribution coefficient for Th-229 Contaminated zone distribution 1 Truncated lognormal-n 8.68 3.62 0.001 0.999 -0.05 No Distribution coefficient for Th-230 Contaminated zone distribution 1 Truncated lognormal-n 8.68 3.62 0.001 0.999 0.02 No Distribution coefficient for Th-232 Contaminated zone distribution 1 Truncated lognormal-n 4.84 3.13 0.001 0.999 -0.02 No Distribution coefficient for U-233 Contaminated zone distribution 1 Truncated lognormal-n 4.84 3.13 0.001 0.999 0.05 No Distribution coefficient for U-234 Page 6-111
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-E, Distribution Parameters and Sensitivity Analysis Results for Discounted Radionuclides Distributions Statistical Parameters2 Sensitivity Results Parameter Priority1 Distribution 25% or Assigned PRCC 1 2 3 4 75% Parameter Value Quartile Value Contaminated zone distribution 1 Truncated lognormal-n 4.84 3.13 0.001 0.999 0.07 No Distribution coefficient for U-235 Contaminated zone distribution 1 Truncated lognormal-n 4.84 3.13 0.001 0.999 0.09 No Distribution coefficient for U-236 Contaminated zone distribution 1 Truncated lognormal-n 4.84 3.13 0.001 0.999 0.02 No Distribution coefficient for U-238 Contaminated zone distribution 1 Truncated lognormal-n 6.86 1.89 0.001 0.999 0.03 No Distribution coefficient for Pu-238 Contaminated zone distribution 1 Truncated lognormal-n 6.86 1.89 0.001 0.999 0.01 No Distribution coefficient for Pu-239 Contaminated zone distribution 1 Truncated lognormal-n 6.86 1.89 0.001 0.999 -0.03 No Distribution coefficient for Pu-240 Contaminated zone distribution 1 Truncated lognormal-n 6.86 1.89 0.001 0.999 0.10 No Distribution coefficient for Pu-241 Contaminated zone distribution 1 Truncated lognormal-n 6.86 1.89 0.001 0.999 0.00 No Distribution coefficient for Pu-242 Contaminated zone distribution 1 Truncated lognormal-n 7.78 2.76 0.001 0.999 0.06 No Distribution coefficient for Pb-210 Contaminated zone distribution 1 Truncated lognormal-n 8.17 1.70 0.001 0.999 -0.16 No Distribution coefficient for Ra-226 Contaminated zone distribution 1 Truncated lognormal-n 8.17 1.70 0.001 0.999 -0.03 No Distribution coefficient for Ra-228 Contaminated zone distribution 1 Truncated lognormal-n 6.72 3.22 0.001 0.999 0.00 No Distribution coefficient for Ac-227 Contaminated zone distribution 1 Truncated lognormal-n 5.94 3.22 0.001 0.999 -0.15 No Distribution coefficient for Pa-231 Contaminated zone distribution 1 Truncated lognormal-n 7.28 3.15 0.001 0.999 0.01 No Distribution coefficient for Am-241 Contaminated zone distribution 1 Truncated lognormal-n 8.82 1.82 0.001 0.999 -0.03 No Distribution coefficient for Cm-244 Unsaturated zone 1 distribution 1 Truncated lognormal-n -2.81 0.5 0.001 0.999 0.01 No Distribution coefficient for H-3 Unsaturated zone 1 distribution 1 Truncated lognormal-n 5.04 3.22 0.001 0.999 0.04 No Distribution coefficient for Na-22 Unsaturated zone 1 distribution 1 Truncated lognormal-n 5.34 2.67 0.001 0.999 0.05 No Distribution coefficient for Fe-55 Unsaturated zone 1 distribution 1 Truncated lognormal-n 6.05 1.46 0.001 0.999 0.07 No Distribution coefficient for Ni-59 Unsaturated zone 1 distribution 1 Truncated lognormal-n 5.94 3.22 0.001 0.999 0.08 No Distribution coefficient for Nb-94 Unsaturated zone 1 distribution 1 Truncated lognormal-n -0.67 3.16 0.001 0.999 -0.03 No Distribution coefficient for Tc-99 Page 6-112
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-E, Distribution Parameters and Sensitivity Analysis Results for Discounted Radionuclides Distributions Statistical Parameters2 Sensitivity Results Parameter Priority1 Distribution 25% or Assigned PRCC 1 2 3 4 75% Parameter Value Quartile Value Unsaturated zone 1 distribution 1 Truncated lognormal-n 5.38 2.10 0.001 0.999 0.02 No Distribution coefficient for Ag-108m Unsaturated zone 1 distribution 1 Truncated lognormal-n 5.94 3.22 0.001 0.999 0.02 No Distribution coefficient for Sb-125 Unsaturated zone 1 distribution 1 Truncated lognormal-n 6.72 3.22 0.001 0.999 -0.07 No Distribution coefficient for Pm-147 Unsaturated zone 1 distribution 1 Truncated lognormal-n 6.72 3.22 0.001 0.999 0.03 No Distribution coefficient for Sm-147 Unsaturated zone 1 distribution 1 Truncated lognormal-n 6.72 3.22 0.001 0.999 -0.10 No Distribution coefficient for Eu-152 Unsaturated zone 1 distribution 1 Truncated lognormal-n 6.72 3.22 0.001 0.999 0.04 No Distribution coefficient for Eu-154 Unsaturated zone 1 distribution 1 Truncated lognormal-n 6.72 3.22 0.001 0.999 -0.01 No Distribution coefficient for Eu-155 Unsaturated zone 1 distribution 1 Truncated lognormal-n 6.72 3.22 0.001 0.999 -0.11 No Distribution coefficient for Gd-152 Unsaturated zone 1 distribution 1 Truncated lognormal-n 2.84 2.25 0.001 0.999 -0.09 No Distribution coefficient for Np-237 Unsaturated zone 1 distribution 1 Truncated lognormal-n 8.68 3.62 0.001 0.999 0.14 No Distribution coefficient for Th-228 Unsaturated zone 1 distribution 1 Truncated lognormal-n 8.68 3.62 0.001 0.999 -0.06 No Distribution coefficient for Th-229 Unsaturated zone 1 distribution 1 Truncated lognormal-n 8.68 3.62 0.001 0.999 -0.11 No Distribution coefficient for Th-230 Unsaturated zone 1 distribution 1 Truncated lognormal-n 8.68 3.62 0.001 0.999 -0.13 No Distribution coefficient for Th-232 Unsaturated zone 1 distribution 1 Truncated lognormal-n 4.84 3.13 0.001 0.999 0.08 No Distribution coefficient for U-233 Unsaturated zone 1 distribution 1 Truncated lognormal-n 4.84 3.13 0.001 0.999 -0.07 No Distribution coefficient for U-234 Unsaturated zone 1 distribution 1 Truncated lognormal-n 4.84 3.13 0.001 0.999 0.01 No Distribution coefficient for U-235 Unsaturated zone 1 distribution 1 Truncated lognormal-n 4.84 3.13 0.001 0.999 -0.19 No Distribution coefficient for U-236 Unsaturated zone 1 distribution 1 Truncated lognormal-n 4.84 3.13 0.001 0.999 0.01 No Distribution coefficient for U-238 Unsaturated zone 1 distribution 1 Truncated lognormal-n 6.86 1.89 0.001 0.999 0.08 No Distribution coefficient for Pu-238 Unsaturated zone 1 distribution 1 Truncated lognormal-n 6.86 1.89 0.001 0.999 0.04 No Distribution coefficient for Pu-239 Unsaturated zone 1 distribution 1 Truncated lognormal-n 6.86 1.89 0.001 0.999 0.01 No Distribution coefficient for Pu-240 Page 6-113
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-E, Distribution Parameters and Sensitivity Analysis Results for Discounted Radionuclides Distributions Statistical Parameters2 Sensitivity Results Parameter Priority1 Distribution 25% or Assigned PRCC 1 2 3 4 75% Parameter Value Quartile Value Unsaturated zone 1 distribution 1 Truncated lognormal-n 6.86 1.89 0.001 0.999 -0.16 No Distribution coefficient for Pu-241 Unsaturated zone 1 distribution 1 Truncated lognormal-n 6.86 1.89 0.001 0.999 -0.05 No Distribution coefficient for Pu-242 Unsaturated zone 1 distribution 1 Truncated lognormal-n 7.78 2.76 0.001 0.999 -0.02 No Distribution coefficient for Pb-210 Unsaturated zone 1 distribution 1 Truncated lognormal-n 8.17 1.70 0.001 0.999 -0.01 No Distribution coefficient for Ra-226 Unsaturated zone 1 distribution 1 Truncated lognormal-n 8.17 1.70 0.001 0.999 -0.08 No Distribution coefficient for Ra-228 Unsaturated zone 1 distribution 1 Truncated lognormal-n 6.72 3.22 0.001 0.999 -0.12 No Distribution coefficient for Ac-227 Unsaturated zone 1 distribution 1 Truncated lognormal-n 5.94 3.22 0.001 0.999 -0.12 No Distribution coefficient for Pa-231 Unsaturated zone 1 distribution 1 Truncated lognormal-n 7.28 3.15 0.001 0.999 -0.02 No Distribution coefficient for Am-241 Unsaturated zone 1 distribution 1 Truncated lognormal-n 8.82 1.82 0.001 0.999 -0.01 No Distribution coefficient for Cm-244 Unsaturated zone 2 distribution 1 Truncated lognormal-n -2.81 0.5 0.001 0.999 0.11 No Distribution coefficient for H-3 Unsaturated zone 2 distribution 1 Truncated lognormal-n 5.04 3.22 0.001 0.999 0.08 No Distribution coefficient for Na-22 Unsaturated zone 2 distribution 1 Truncated lognormal-n 5.34 2.67 0.001 0.999 -0.06 No Distribution coefficient for Fe-55 Unsaturated zone 2 distribution 1 Truncated lognormal-n 6.05 1.46 0.001 0.999 -0.10 No Distribution coefficient for Ni-59 Unsaturated zone 2 distribution 1 Truncated lognormal-n 5.94 3.22 0.001 0.999 0.00 No Distribution coefficient for Nb-94 Unsaturated zone 2 distribution 1 Truncated lognormal-n -0.67 3.16 0.001 0.999 0.09 No Distribution coefficient for Tc-99 Unsaturated zone 2 distribution 1 Truncated lognormal-n 5.38 2.10 0.001 0.999 0.02 No Distribution coefficient for Ag-108m Unsaturated zone 2 distribution 1 Truncated lognormal-n 5.94 3.22 0.001 0.999 0.00 No Distribution coefficient for Sb-125 Unsaturated zone 2 distribution 1 Truncated lognormal-n 6.72 3.22 0.001 0.999 0.09 No Distribution coefficient for Pm-147 Unsaturated zone 2 distribution 1 Truncated lognormal-n 6.72 3.22 0.001 0.999 0.11 No Distribution coefficient for Sm-147 Unsaturated zone 2 distribution 1 Truncated lognormal-n 6.72 3.22 0.001 0.999 -0.05 No Distribution coefficient for Eu-152 Unsaturated zone 2 distribution 1 Truncated lognormal-n 6.72 3.22 0.001 0.999 -0.01 No Distribution coefficient for Eu-154 Page 6-114
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-E, Distribution Parameters and Sensitivity Analysis Results for Discounted Radionuclides Distributions Statistical Parameters2 Sensitivity Results Parameter Priority1 Distribution 25% or Assigned PRCC 1 2 3 4 75% Parameter Value Quartile Value Unsaturated zone 2 distribution 1 Truncated lognormal-n 6.72 3.22 0.001 0.999 0.03 No Distribution coefficient for Eu-155 Unsaturated zone 2 distribution 1 Truncated lognormal-n 6.72 3.22 0.001 0.999 -0.03 No Distribution coefficient for Gd-152 Unsaturated zone 2 distribution 1 Truncated lognormal-n 2.84 2.25 0.001 0.999 0.14 No Distribution coefficient for Np-237 Unsaturated zone 2 distribution 1 Truncated lognormal-n 8.68 3.62 0.001 0.999 0.14 No Distribution coefficient for Th-228 Unsaturated zone 2 distribution 1 Truncated lognormal-n 8.68 3.62 0.001 0.999 0.06 No Distribution coefficient for Th-229 Unsaturated zone 2 distribution 1 Truncated lognormal-n 8.68 3.62 0.001 0.999 -0.14 No Distribution coefficient for Th-230 Unsaturated zone 2 distribution 1 Truncated lognormal-n 8.68 3.62 0.001 0.999 0.08 No Distribution coefficient for Th-232 Unsaturated zone 2 distribution 1 Truncated lognormal-n 4.84 3.13 0.001 0.999 0.06 No Distribution coefficient for U-233 Unsaturated zone 2 distribution 1 Truncated lognormal-n 4.84 3.13 0.001 0.999 0.06 No Distribution coefficient for U-234 Unsaturated zone 2 distribution 1 Truncated lognormal-n 4.84 3.13 0.001 0.999 -0.04 No Distribution coefficient for U-235 Unsaturated zone 2 distribution 1 Truncated lognormal-n 4.84 3.13 0.001 0.999 0.17 No Distribution coefficient for U-236 Unsaturated zone 2 distribution 1 Truncated lognormal-n 4.84 3.13 0.001 0.999 0.02 No Distribution coefficient for U-238 Unsaturated zone 2 distribution 1 Truncated lognormal-n 6.86 1.89 0.001 0.999 -0.06 No Distribution coefficient for Pu-238 Unsaturated zone 2 distribution 1 Truncated lognormal-n 6.86 1.89 0.001 0.999 -0.07 No Distribution coefficient for Pu-239 Unsaturated zone 2 distribution 1 Truncated lognormal-n 6.86 1.89 0.001 0.999 0.08 No Distribution coefficient for Pu-240 Unsaturated zone 2 distribution 1 Truncated lognormal-n 6.86 1.89 0.001 0.999 -0.04 No Distribution coefficient for Pu-241 Unsaturated zone 2 distribution 1 Truncated lognormal-n 6.86 1.89 0.001 0.999 -0.01 No Distribution coefficient for Pu-242 Unsaturated zone 2 distribution 1 Truncated lognormal-n 7.78 2.76 0.001 0.999 -0.12 No Distribution coefficient for Pb-210 Unsaturated zone 2 distribution 1 Truncated lognormal-n 8.17 1.70 0.001 0.999 0.14 No Distribution coefficient for Ra-226 Unsaturated zone 2 distribution 1 Truncated lognormal-n 8.17 1.70 0.001 0.999 -0.06 No Distribution coefficient for Ra-228 Unsaturated zone 2 distribution 1 Truncated lognormal-n 6.72 3.22 0.001 0.999 0.12 No Distribution coefficient for Ac-227 Page 6-115
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-E, Distribution Parameters and Sensitivity Analysis Results for Discounted Radionuclides Distributions Statistical Parameters2 Sensitivity Results Parameter Priority1 Distribution 25% or Assigned PRCC 1 2 3 4 75% Parameter Value Quartile Value Unsaturated zone 2 distribution 1 Truncated lognormal-n 5.94 3.22 0.001 0.999 -0.11 No Distribution coefficient for Pa-231 Unsaturated zone 2 distribution 1 Truncated lognormal-n 7.28 3.15 0.001 0.999 -0.06 No Distribution coefficient for Am-241 Unsaturated zone 2 distribution 1 Truncated lognormal-n 8.82 1.82 0.001 0.999 -0.03 No Distribution coefficient for Cm-244 Unsaturated zone 3 distribution 1 Truncated lognormal-n -2.81 0.5 0.001 0.999 -0.09 No Distribution coefficient for H-3 Unsaturated zone 3 distribution 1 Truncated lognormal-n 5.04 3.22 0.001 0.999 -0.10 No Distribution coefficient for Na-22 Unsaturated zone 3 distribution 1 Truncated lognormal-n 5.34 2.67 0.001 0.999 -0.04 No Distribution coefficient for Fe-55 Unsaturated zone 3 distribution 1 Truncated lognormal-n 6.05 1.46 0.001 0.999 0.05 No Distribution coefficient for Ni-59 Unsaturated zone 3 distribution 1 Truncated lognormal-n 5.94 3.22 0.001 0.999 -0.07 No Distribution coefficient for Nb-94 Unsaturated zone 3 distribution 1 Truncated lognormal-n -0.67 3.16 0.001 0.999 -0.02 No Distribution coefficient for Tc-99 Unsaturated zone 3 distribution 1 Truncated lognormal-n 5.38 2.10 0.001 0.999 0.03 No Distribution coefficient for Ag-108m Unsaturated zone 3 distribution 1 Truncated lognormal-n 5.94 3.22 0.001 0.999 0.09 No Distribution coefficient for Sb-125 Unsaturated zone 3 distribution 1 Truncated lognormal-n 6.72 3.22 0.001 0.999 0.09 No Distribution coefficient for Pm-147 Unsaturated zone 3 distribution 1 Truncated lognormal-n 6.72 3.22 0.001 0.999 0.06 No Distribution coefficient for Sm-147 Unsaturated zone 3 distribution 1 Truncated lognormal-n 6.72 3.22 0.001 0.999 -0.02 No Distribution coefficient for Eu-152 Unsaturated zone 3 distribution 1 Truncated lognormal-n 6.72 3.22 0.001 0.999 -0.09 No Distribution coefficient for Eu-154 Unsaturated zone 3 distribution 1 Truncated lognormal-n 6.72 3.22 0.001 0.999 -0.10 No Distribution coefficient for Eu-155 Unsaturated zone 3 distribution 1 Truncated lognormal-n 6.72 3.22 0.001 0.999 0.01 No Distribution coefficient for Gd-152 Unsaturated zone 3 distribution 1 Truncated lognormal-n 2.84 2.25 0.001 0.999 -0.10 No Distribution coefficient for Np-237 Unsaturated zone 3 distribution 1 Truncated lognormal-n 8.68 3.62 0.001 0.999 0.05 No Distribution coefficient for Th-228 Unsaturated zone 3 distribution 1 Truncated lognormal-n 8.68 3.62 0.001 0.999 -0.14 No Distribution coefficient for Th-229 Unsaturated zone 3 distribution 1 Truncated lognormal-n 8.68 3.62 0.001 0.999 -0.07 No Distribution coefficient for Th-230 Page 6-116
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-E, Distribution Parameters and Sensitivity Analysis Results for Discounted Radionuclides Distributions Statistical Parameters2 Sensitivity Results Parameter Priority1 Distribution 25% or Assigned PRCC 1 2 3 4 75% Parameter Value Quartile Value Unsaturated zone 3 distribution 1 Truncated lognormal-n 8.68 3.62 0.001 0.999 0.10 No Distribution coefficient for Th-232 Unsaturated zone 3 distribution 1 Truncated lognormal-n 4.84 3.13 0.001 0.999 0.00 No Distribution coefficient for U-233 Unsaturated zone 3 distribution 1 Truncated lognormal-n 4.84 3.13 0.001 0.999 -0.13 No Distribution coefficient for U-234 Unsaturated zone 3 distribution 1 Truncated lognormal-n 4.84 3.13 0.001 0.999 0.09 No Distribution coefficient for U-235 Unsaturated zone 3 distribution 1 Truncated lognormal-n 4.84 3.13 0.001 0.999 0.09 No Distribution coefficient for U-236 Unsaturated zone 3 distribution 1 Truncated lognormal-n 4.84 3.13 0.001 0.999 0.02 No Distribution coefficient for U-238 Unsaturated zone 3 distribution 1 Truncated lognormal-n 6.86 1.89 0.001 0.999 0.00 No Distribution coefficient for Pu-238 Unsaturated zone 3 distribution 1 Truncated lognormal-n 6.86 1.89 0.001 0.999 -0.09 No Distribution coefficient for Pu-239 Unsaturated zone 3 distribution 1 Truncated lognormal-n 6.86 1.89 0.001 0.999 -0.06 No Distribution coefficient for Pu-240 Unsaturated zone 3 distribution 1 Truncated lognormal-n 6.86 1.89 0.001 0.999 -0.07 No Distribution coefficient for Pu-241 Unsaturated zone 3 distribution 1 Truncated lognormal-n 6.86 1.89 0.001 0.999 0.06 No Distribution coefficient for Pu-242 Unsaturated zone 3 distribution 1 Truncated lognormal-n 7.78 2.76 0.001 0.999 -0.16 No Distribution coefficient for Pb-210 Unsaturated zone 3 distribution 1 Truncated lognormal-n 8.17 1.70 0.001 0.999 0.15 No Distribution coefficient for Ra-226 Unsaturated zone 3 distribution 1 Truncated lognormal-n 8.17 1.70 0.001 0.999 -0.02 No Distribution coefficient for Ra-228 Unsaturated zone 3 distribution 1 Truncated lognormal-n 6.72 3.22 0.001 0.999 -0.05 No Distribution coefficient for Ac-227 Unsaturated zone 3 distribution 1 Truncated lognormal-n 5.94 3.22 0.001 0.999 -0.16 No Distribution coefficient for Pa-231 Unsaturated zone 3 distribution 1 Truncated lognormal-n 7.28 3.15 0.001 0.999 -0.10 No Distribution coefficient for Am-241 Unsaturated zone 3 distribution 1 Truncated lognormal-n 8.82 1.82 0.001 0.999 -0.06 No Distribution coefficient for Cm-244 Unsaturated zone 4 distribution 1 Truncated lognormal-n -2.81 0.5 0.001 0.999 0.14 No Distribution coefficient for H-3 Unsaturated zone 4 distribution 1 Truncated lognormal-n 5.04 3.22 0.001 0.999 0.05 No Distribution coefficient for Na-22 Unsaturated zone 4 distribution 1 Truncated lognormal-n 5.34 2.67 0.001 0.999 -0.09 No Distribution coefficient for Fe-55 Page 6-117
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-E, Distribution Parameters and Sensitivity Analysis Results for Discounted Radionuclides Distributions Statistical Parameters2 Sensitivity Results Parameter Priority1 Distribution 25% or Assigned PRCC 1 2 3 4 75% Parameter Value Quartile Value Unsaturated zone 4 distribution 1 Truncated lognormal-n 6.05 1.46 0.001 0.999 0.13 No Distribution coefficient for Ni-59 Unsaturated zone 4 distribution 1 Truncated lognormal-n 5.94 3.22 0.001 0.999 -0.07 No Distribution coefficient for Nb-94 Unsaturated zone 4 distribution 1 Truncated lognormal-n -0.67 3.16 0.001 0.999 -0.07 No Distribution coefficient for Tc-99 Unsaturated zone 4 distribution 1 Truncated lognormal-n 5.38 2.10 0.001 0.999 0.04 No Distribution coefficient for Ag-108m Unsaturated zone 4 distribution 1 Truncated lognormal-n 5.94 3.22 0.001 0.999 -0.02 No Distribution coefficient for Sb-125 Unsaturated zone 4 distribution 1 Truncated lognormal-n 6.72 3.22 0.001 0.999 -0.06 No Distribution coefficient for Pm-147 Unsaturated zone 4 distribution 1 Truncated lognormal-n 6.72 3.22 0.001 0.999 -0.05 No Distribution coefficient for Sm-147 Unsaturated zone 4 distribution 1 Truncated lognormal-n 6.72 3.22 0.001 0.999 0.09 No Distribution coefficient for Eu-152 Unsaturated zone 4 distribution 1 Truncated lognormal-n 6.72 3.22 0.001 0.999 0.09 No Distribution coefficient for Eu-154 Unsaturated zone 4 distribution 1 Truncated lognormal-n 6.72 3.22 0.001 0.999 0.08 No Distribution coefficient for Eu-155 Unsaturated zone 4 distribution 1 Truncated lognormal-n 6.72 3.22 0.001 0.999 0.01 No Distribution coefficient for Gd-152 Unsaturated zone 4 distribution 1 Truncated lognormal-n 2.84 2.25 0.001 0.999 0.00 No Distribution coefficient for Np-237 Unsaturated zone 4 distribution 1 Truncated lognormal-n 8.68 3.62 0.001 0.999 0.02 No Distribution coefficient for Th-228 Unsaturated zone 4 distribution 1 Truncated lognormal-n 8.68 3.62 0.001 0.999 -0.01 No Distribution coefficient for Th-229 Unsaturated zone 4 distribution 1 Truncated lognormal-n 8.68 3.62 0.001 0.999 -0.01 No Distribution coefficient for Th-230 Unsaturated zone 4 distribution 1 Truncated lognormal-n 8.68 3.62 0.001 0.999 -0.05 No Distribution coefficient for Th-232 Unsaturated zone 4 distribution 1 Truncated lognormal-n 4.84 3.13 0.001 0.999 -0.14 No Distribution coefficient for U-233 Unsaturated zone 4 distribution 1 Truncated lognormal-n 4.84 3.13 0.001 0.999 0.01 No Distribution coefficient for U-234 Unsaturated zone 4 distribution 1 Truncated lognormal-n 4.84 3.13 0.001 0.999 0.01 No Distribution coefficient for U-235 Unsaturated zone 4 distribution 1 Truncated lognormal-n 4.84 3.13 0.001 0.999 -0.02 No Distribution coefficient for U-236 Unsaturated zone 4 distribution 1 Truncated lognormal-n 4.84 3.13 0.001 0.999 0.03 No Distribution coefficient for U-238 Page 6-118
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-E, Distribution Parameters and Sensitivity Analysis Results for Discounted Radionuclides Distributions Statistical Parameters2 Sensitivity Results Parameter Priority1 Distribution 25% or Assigned PRCC 1 2 3 4 75% Parameter Value Quartile Value Unsaturated zone 4 distribution 1 Truncated lognormal-n 6.86 1.89 0.001 0.999 -0.05 No Distribution coefficient for Pu-238 Unsaturated zone 4 distribution 1 Truncated lognormal-n 6.86 1.89 0.001 0.999 -0.01 No Distribution coefficient for Pu-239 Unsaturated zone 4 distribution 1 Truncated lognormal-n 6.86 1.89 0.001 0.999 0.11 No Distribution coefficient for Pu-240 Unsaturated zone 4 distribution 1 Truncated lognormal-n 6.86 1.89 0.001 0.999 -0.01 No Distribution coefficient for Pu-241 Unsaturated zone 4 distribution 1 Truncated lognormal-n 6.86 1.89 0.001 0.999 -0.11 No Distribution coefficient for Pu-242 Unsaturated zone 4 distribution 1 Truncated lognormal-n 7.78 2.76 0.001 0.999 0.08 No Distribution coefficient for Pb-210 Unsaturated zone 4 distribution 1 Truncated lognormal-n 8.17 1.70 0.001 0.999 -0.02 No Distribution coefficient for Ra-226 Unsaturated zone 4 distribution 1 Truncated lognormal-n 8.17 1.70 0.001 0.999 -0.08 No Distribution coefficient for Ra-228 Unsaturated zone 4 distribution 1 Truncated lognormal-n 6.72 3.22 0.001 0.999 -0.13 No Distribution coefficient for Ac-227 Unsaturated zone 4 distribution 1 Truncated lognormal-n 5.94 3.22 0.001 0.999 0.05 No Distribution coefficient for Pa-231 Unsaturated zone 4 distribution 1 Truncated lognormal-n 7.28 3.15 0.001 0.999 0.06 No Distribution coefficient for Am-241 Unsaturated zone 4 distribution 1 Truncated lognormal-n 8.82 1.82 0.001 0.999 0.07 No Distribution coefficient for Cm-244 Saturated zone distribution 1 Truncated lognormal-n -2.81 0.5 0.001 0.999 -0.01 No Distribution coefficient for H-3 Saturated zone distribution 1 Truncated lognormal-n 5.04 3.22 0.001 0.999 0.01 No Distribution coefficient for Na-22 Saturated zone distribution 1 Truncated lognormal-n 5.34 2.67 0.001 0.999 -0.11 No Distribution coefficient for Fe-55 Saturated zone distribution 1 Truncated lognormal-n 6.05 1.46 0.001 0.999 -0.01 No Distribution coefficient for Ni-59 Saturated zone distribution 1 Truncated lognormal-n 5.94 3.22 0.001 0.999 -0.21 No Distribution coefficient for Nb-94 Saturated zone distribution 1 Truncated lognormal-n -0.67 3.16 0.001 0.999 0.11 No Distribution coefficient for Tc-99 Saturated zone distribution 1 Truncated lognormal-n 5.38 2.10 0.001 0.999 -0.05 No Distribution coefficient for Ag-108m Saturated zone distribution 1 Truncated lognormal-n 5.94 3.22 0.001 0.999 -0.10 No Distribution coefficient for Sb-125 Saturated zone distribution 1 Truncated lognormal-n 6.72 3.22 0.001 0.999 -0.08 No Distribution coefficient for Pm-147 Page 6-119
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-E, Distribution Parameters and Sensitivity Analysis Results for Discounted Radionuclides Distributions Statistical Parameters2 Sensitivity Results Parameter Priority1 Distribution 25% or Assigned PRCC 1 2 3 4 75% Parameter Value Quartile Value Saturated zone distribution 1 Truncated lognormal-n 6.72 3.22 0.001 0.999 0.15 No Distribution coefficient for Sm-147 Saturated zone distribution 1 Truncated lognormal-n 6.72 3.22 0.001 0.999 -0.04 No Distribution coefficient for Eu-152 Saturated zone distribution 1 Truncated lognormal-n 6.72 3.22 0.001 0.999 -0.05 No Distribution coefficient for Eu-154 Saturated zone distribution 1 Truncated lognormal-n 6.72 3.22 0.001 0.999 -0.02 No Distribution coefficient for Eu-155 Saturated zone distribution 1 Truncated lognormal-n 6.72 3.22 0.001 0.999 -0.03 No Distribution coefficient for Gd-152 Saturated zone distribution 1 Truncated lognormal-n 2.84 2.25 0.001 0.999 0.01 No Distribution coefficient for Np-237 Saturated zone distribution 1 Truncated lognormal-n 8.68 3.62 0.001 0.999 -0.08 No Distribution coefficient for Th-228 Saturated zone distribution 1 Truncated lognormal-n 8.68 3.62 0.001 0.999 -0.10 No Distribution coefficient for Th-229 Saturated zone distribution 1 Truncated lognormal-n 8.68 3.62 0.001 0.999 -0.02 No Distribution coefficient for Th-230 Saturated zone distribution 1 Truncated lognormal-n 8.68 3.62 0.001 0.999 0.05 No Distribution coefficient for Th-232 Saturated zone distribution 1 Truncated lognormal-n 4.84 3.13 0.001 0.999 0.05 No Distribution coefficient for U-233 Saturated zone distribution 1 Truncated lognormal-n 4.84 3.13 0.001 0.999 0.05 No Distribution coefficient for U-234 Saturated zone distribution 1 Truncated lognormal-n 4.84 3.13 0.001 0.999 -0.01 No Distribution coefficient for U-235 Saturated zone distribution 1 Truncated lognormal-n 4.84 3.13 0.001 0.999 -0.09 No Distribution coefficient for U-236 Saturated zone distribution 1 Truncated lognormal-n 4.84 3.13 0.001 0.999 -0.03 No Distribution coefficient for U-238 Saturated zone distribution 1 Truncated lognormal-n 6.86 1.89 0.001 0.999 0.14 No Distribution coefficient for Pu-238 Saturated zone distribution 1 Truncated lognormal-n 6.86 1.89 0.001 0.999 -0.03 No Distribution coefficient for Pu-239 Saturated zone distribution 1 Truncated lognormal-n 6.86 1.89 0.001 0.999 0.04 No Distribution coefficient for Pu-240 Saturated zone distribution 1 Truncated lognormal-n 6.86 1.89 0.001 0.999 -0.03 No Distribution coefficient for Pu-241 Saturated zone distribution 1 Truncated lognormal-n 6.86 1.89 0.001 0.999 0.05 No Distribution coefficient for Pu-242 Saturated zone distribution 1 Truncated lognormal-n 7.78 2.76 0.001 0.999 0.17 No Distribution coefficient for Pb-210 Page 6-120
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-E, Distribution Parameters and Sensitivity Analysis Results for Discounted Radionuclides Distributions Statistical Parameters2 Sensitivity Results Parameter Priority1 Distribution 25% or Assigned PRCC 1 2 3 4 75% Parameter Value Quartile Value Saturated zone distribution 1 Truncated lognormal-n 8.17 1.70 0.001 0.999 -0.02 No Distribution coefficient for Ra-226 Saturated zone distribution 1 Truncated lognormal-n 8.17 1.70 0.001 0.999 0.20 No Distribution coefficient for Ra-228 Saturated zone distribution 1 Truncated lognormal-n 6.72 3.22 0.001 0.999 0.04 No Distribution coefficient for Ac-227 Saturated zone distribution 1 Truncated lognormal-n 5.94 3.22 0.001 0.999 0.01 No Distribution coefficient for Pa-231 Saturated zone distribution 1 Truncated lognormal-n 7.28 3.15 0.001 0.999 0.09 No Distribution coefficient for Am-241 Saturated zone distribution 1 Truncated lognormal-n 8.82 1.82 0.001 0.999 -0.02 No Distribution coefficient for Cm-244 Contaminated zone b parameter 2 Bounded lognormal-n 1.06 0.66 0.5 30 0.07 No Distribution 3
Contaminated zone erosion rate 2 Continuous logarithmic Default - - - -0.45 25% 0.000759 Contaminated zone total porosity 2 Truncated normal 0.425 0.0867 0.001 0.999 0.10 No Distribution Contaminated zone hydraulic 2 Bounded lognormal-n 2.66 0.475 3.302 62.2 -0.22 No Distribution conductivity Depth of soil mixing layer 2 Triangular 0.0 0.6 0.15 - -0.93 25% 0.149 Drinking water intake 2 Truncated lognormal-n 6.015 0.489 0.001 0.999 0.06 No Distribution Evapotranspiration coefficient 2 Uniform 0.5 0.75 - - 0.17 No Distribution Indoor dust filtration factor 2 Uniform 0.15 0.95 - - 0.13 No Distribution 3
Mass loading for inhalation 2 Continuous linear Default - - - 0.19 No Distribution Runoff coefficient 2 Uniform 0.1 0.8 - - 0.24 No Distribution Saturated zone b parameter 2 Bounded lognormal-n 1.06 0.66 0.5 30 0.11 No Distribution Saturated zone hydraulic gradient 2 Bounded lognormal-n -5.11 1.77 7E-05 0.5 0.09 No Distribution Soil ingestion rate 2 Triangular 0 36.5 18.3 - 0.92 75% 23.6 Unsaturated zone 1 density 2 Normal 1.33 0.202 - - -0.06 No Distribution Unsaturated zone 1 effective 2 Truncated normal 0.425 0.110 0.0839 0.766 0.05 No Distribution porosity Unsaturated zone 1 hydraulic 2 Bounded lognormal-n 2.66 0.475 3.302 62.2 0.11 No Distribution conductivity Unsaturated zone 1 b parameter 2 Bounded lognormal-n 1.16 0.140 2.06 4.89 -0.04 No Distribution Unsaturated zone 1 total porosity 2 Truncated normal 0.46 0.11 0.1161 0.7959 0.17 No Distribution Unsaturated zone 2 density 2 Normal 1.578 0.158 - - -0.08 No Distribution Unsaturated zone 2 effective 2 Truncated normal 0.383 0.0610 0.195 0.572 0.01 No Distribution porosity Unsaturated zone 2 hydraulic 2 Bounded lognormal-n 1.398 1.842 110 5870 0.03 No Distribution conductivity Unsaturated zone 2 b parameter 2 Bounded lognormal-n -0.0253 0.216 0.501 1.90 0.23 No Distribution Unsaturated zone 2 total porosity 2 Truncated normal 0.43 0.06 0.2446 0.6154 0.05 No Distribution Unsaturated zone 3 density 2 Normal 1.33 0.202 - - -0.18 No Distribution Page 6-121
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-E, Distribution Parameters and Sensitivity Analysis Results for Discounted Radionuclides Distributions Statistical Parameters2 Sensitivity Results Parameter Priority1 Distribution 25% or Assigned PRCC 1 2 3 4 75% Parameter Value Quartile Value Unsaturated zone 3 hydraulic 2 Bounded lognormal-n 2.66 0.475 3.302 62.2 0.11 No Distribution conductivity Unsaturated zone 3 b parameter 2 Bounded lognormal-n 1.16 0.140 2.06 4.89 -0.12 No Distribution Unsaturated zone 4 density 2 Normal 1.578 0.158 - - 0.11 No Distribution Unsaturated zone 4 hydraulic 2 Bounded lognormal-n 1.398 1.842 110 5870 -0.03 No Distribution conductivity Unsaturated zone 4 b parameter 2 Bounded lognormal-n -0.0253 0.216 0.501 1.90 0.14 No Distribution Unsaturated zone 1 field capacity 3 Truncated normal 0.236 0.0578 0.0575 0.415 -0.06 No Distribution Unsaturated zone 2 field capacity 3 Truncated normal 0.0607 0.0150 0.0280 0.124 -0.03 No Distribution Inhalation rate 3 Triangular 4,380 13,100 8,400 - 0.07 No Distribution Notes:
1 1 = high priority parameter, 2 = medium priority parameter 2
Distributions Statistical Parameter Bounded lognormal-n: 1 = underlying mean value, 2 = underlying standard deviation, 3 = lower limit, 4 = upper limit Lognormal: 1 = mean, 2 = error factor Normal: 1 = mean, 2 = standard deviation Page 6-122
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-F, Parameters for Probabilistic Analysis of Varying Contamination Layer Thickness Parameter Parameter Class1 Priority2 Units Basis for Parameter Selection Value Contamination Thickness of P 2 m 0.15, 0.5, 1, Assigned value contaminated zone 1.5, 2, 2.5, 3 Area of contaminated P 2 m2 10,000 Example contaminated zone area used to calculate DCGLs in zone DTBD-04-005 Shape of the P 3 - Circular Default RESRAD v6.22 Physical priority 3 value acceptable for contaminated zone this evaluation Initial concentration of P 2 pCi/g Various Table 6-1 maximum allowed radionuclide mixture concentrations principal radionuclides in soil Initial concentration of P 3 pCi/L 0 Not Used for this evaluation radionuclides present in ground water Leach rate P 3 1/yr 0 Default Physical value to invoke the calculation of this parameter via a first-order leaching model that uses the value of the soil/water distribution coefficient in the contaminated zone Solubility limit P 3 mol/L 0 Default Physical value - not used by RESRAD v6.22 with leach rate flag set to 0 Time since placement P 3 yr 0 Default RESRAD v6.22 Physical priority 3 value acceptable for of material this evaluation Times for calculation P 3 yr 1, 3, 10, 30, Default RESRAD v6.22 Physical priority 3 value acceptable for 100, 300, 1000 this evaluation Contaminated zone P 1 g/cm3 1.47 Deterministic sensitive parameter value determined in density DTBD-04-005 Contaminated zone P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for C-14 distribution Contaminated zone P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Ni-63 distribution Contaminated zone P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Co-60 distribution Page 6-123
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-F, Parameters for Probabilistic Analysis of Varying Contamination Layer Thickness Parameter Parameter Class1 Priority2 Units Basis for Parameter Selection Value Contaminated zone P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Sr-90 distribution Contaminated zone P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Cs- distribution 134 Contaminated zone P 1 cm3/g 2130 Deterministic sensitive parameter value determined in distribution DTBD-05-005 coefficient for Cs-137 Use plant/soil ratio NA 3 Check No For purposes of this evaluation, the code should not be allowed to box calculate the distribution coefficients from the plant root uptake factors because they are calculated probabilistically Contaminated zone P 3 - 0.2 Default RESRAD v6.22 Priority 3 Physical priority 3 value field capacity acceptable for this evaluation Contaminated zone P,B 2 m/yr Continuous NUREG/CR-6697, Attachment C erosion rate logarithmic distribution Contaminated zone P 2 - Truncated NUREG/CR-6697, Attachment C total porosity normal distribution Contaminated zone P 2 m/yr Bounded NUREG/CR-6697, Attachment C, Table 3.4-1 for silt hydraulic lognormal-n conductivity distribution Contaminated zone b P 2 - Bounded NUREG/CR-6697, Attachment C parameter lognormal-n distribution Carbon-Model Parameters Thickness of evasion P 2 m Triangular NUREG/CR-6697, Attachment C layer of C-14 in soil distribution C-14 evasion flux rate P 3 1/s 7E-07 Default RESRAD v6.22 Physical priority 3 value acceptable for from soil this evaluation C-12 concentration in P 3 g/cm3 2E-05 Default RESRAD v6.22 Physical priority 3 value acceptable for local water this evaluation Page 6-124
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-F, Parameters for Probabilistic Analysis of Varying Contamination Layer Thickness Parameter Parameter Class1 Priority2 Units Basis for Parameter Selection Value C-12 concentration in P 3 g/g 0.03 Default RESRAD v6.22 Priority 3 Physical value acceptable for contaminated soil this evaluation Fraction of vegetation P 3 - 0.02 Default RESRAD v6.22 Priority 3 Physical value acceptable for carbon absorbed this evaluation from soil Fraction of vegetation P 3 - 0.98 Default RESRAD v6.22 Priority 3 Physical value acceptable for carbon absorbed this evaluation from air C-12 evasion flux rate P 3 1/s 1E-10 Default RESRAD v6.22 Priority 3 Physical value acceptable for from soil this evaluation Grain fraction in beef B 3 - 0.8 Default RESRAD v6.22 Priority 3 Physical value acceptable for cattle feed this evaluation Grain fraction in milk B 3 - 0.2 Default RESRAD v6.22 Priority 3 Physical value acceptable for cow feed this evaluation DCF correction factor P 3 - 88.94 Default RESRAD v6.22 Priority 3 Physical value acceptable for for gaseous forms of this evaluation C-14 Soil Cover depth P 2 m 0 The contamination is assumed to be on surface soil Density of cover P 1 g/cm3 Not Used A cover is not used in this evaluation material Cover total porosity P 3 - Not Used Radon is not used in this evaluation Cover volumetric P 3 - Not Used Radon is not used in this evaluation water content Cover radon diffusion P 3 m2/s Not Used Radon is not used in this evaluation coefficient Cover erosion rate P,B 2 m/yr Not Used A cover is not used in this evaluation Number of P 3 - 4, 3, 3, 3, 3, 3, Simplified hydrogeological model assumption unsaturated zones 3 Unsaturated zone 1 P 1 m 0.305, 0, 0, 0, Thickness of silt layer above the sand layer thickness 0, 0, 0 Unsaturated zone 1 P 2 g/cm3 Normal NUREG/CR-6767, Attachment C, Table C-1 distribution for silt density distribution Page 6-125
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-F, Parameters for Probabilistic Analysis of Varying Contamination Layer Thickness Parameter Parameter Class1 Priority2 Units Basis for Parameter Selection Value Unsaturated zone 1 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for C-14 distribution Unsaturated zone 1 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Ni-63 distribution Unsaturated zone 1 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Co-60 distribution Unsaturated zone 1 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Sr-90 distribution Unsaturated zone 1 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Cs- distribution 134 Unsaturated zone 1 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Cs- distribution 137 Unsaturated zone 1 P 2 - Truncated NUREG/CR-6697, Attachment C, Table 3.2-1 distribution for silt total porosity normal distribution Unsaturated zone 1 P 2 - Truncated NUREG/CR-6767, Attachment A, Table A-7 distribution for silt effective porosity normal distribution Unsaturated zone 1 P 3 - Truncated NUREG/CR-6767, Attachment A, Table A-7 distribution for silt field capacity normal distribution Unsaturated zone 1 P 2 m/yr Bounded NUREG/CR-6697, Attachment C, Table 3.4-1 for silt hydraulic lognormal-n conductivity distribution Unsaturated zone 1 P 2 - Bounded NUREG/CR-6697, Attachment C, Table 3.5-1 for silt soil-specific b lognormal-n parameter distribution Page 6-126
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-F, Parameters for Probabilistic Analysis of Varying Contamination Layer Thickness Parameter Parameter Class1 Priority2 Units Basis for Parameter Selection Value Unsaturated zone 2 P 1 m 3.05, 3.005, Thickness of fine sand layer above the siltstone layer thickness 2.505, 2.005, 1.505, 1.005, 0.505 Unsaturated zone 2 P 2 g/cm3 Normal NUREG/CR-6767, Attachment C, Table C-1 distribution for sand density distribution Unsaturated zone 2 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for C-14 distribution Unsaturated zone 2 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Ni-63 distribution Unsaturated zone 2 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Co-60 distribution Unsaturated zone 2 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Sr-90 distribution Unsaturated zone 2 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Cs- distribution 134 Unsaturated zone 2 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Cs- distribution 137 Unsaturated zone 2 P 2 - Truncated NUREG/CR-6697, Attachment C, Table 3.2-1 distribution for sand total porosity normal distribution Unsaturated zone 2 P 2 - Truncated NUREG/CR-6767, Attachment A, Table A-1 distribution for sand effective porosity normal distribution Unsaturated zone 2 P 3 - Truncated NUREG/CR-6767, Attachment A, Table A-1 distribution for sand field capacity normal distribution Page 6-127
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-F, Parameters for Probabilistic Analysis of Varying Contamination Layer Thickness Parameter Parameter Class1 Priority2 Units Basis for Parameter Selection Value Unsaturated zone 2 P 2 m/yr Bounded NUREG/CR-6697, Attachment C, Table 3.4-1 for sand hydraulic lognormal-n conductivity distribution Unsaturated zone 2 P 2 - Bounded NUREG/CR-6697, Attachment C, Table 3.5-1 for sand soil-specific b lognormal-n parameter distribution Unsaturated zone 3 P 1 m 25.60 Thickness of siltstone layer thickness Unsaturated zone 3 P 2 g/cm3 Normal NUREG/CR-6767, Attachment C, Table C-1 distribution for silt density distribution Unsaturated zone 3 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for C-14 distribution Unsaturated zone 3 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Ni-63 distribution Unsaturated zone 3 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Co-60 distribution Unsaturated zone 3 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Sr-90 distribution Unsaturated zone 3 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Cs- distribution 134 Unsaturated zone 3 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Cs- distribution 137 Unsaturated zone 3 P 2 - 0.35 RESRAD Data Collection Handbook Table 3.2 arithmetic mean for total porosity medium siltstone Unsaturated zone 3 P 2 - 0.12 RESRAD Data Collection Handbook Table 3.2 arithmetic mean for effective porosity medium siltstone Page 6-128
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-F, Parameters for Probabilistic Analysis of Varying Contamination Layer Thickness Parameter Parameter Class1 Priority2 Units Basis for Parameter Selection Value Unsaturated zone 3 P 3 - 0.23 Total porosity minus effective porosity per RESRAD Data field capacity Collection Handbook, Section 4.1 Unsaturated zone 3 P 2 m/yr Bounded NUREG/CR-6697, Attachment C, Table 3.4-1 for silt hydraulic lognormal-n conductivity Unsaturated zone 3 P 2 - Bounded NUREG/CR-6697, Attachment C, Table 3.5-1 for silt soil-specific b lognormal-n parameter distribution Unsaturated zone 4 P 1 m 10.82 Thickness of unsaturated sandstone layer thickness Unsaturated zone 4 P 2 g/cm3 Normal NUREG/CR-6767, Attachment C, Table C-1 distribution for sand density distribution Unsaturated zone 4 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for C-14 distribution Unsaturated zone 4 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Ni-63 distribution Unsaturated zone 4 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Co-60 distribution Unsaturated zone 4 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Sr-90 distribution Unsaturated zone 4 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Cs- distribution 134 Unsaturated zone 4 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Cs- distribution 137 Unsaturated zone 4 P 2 - 0.35 RESRAD Data Collection Handbook Table 3.2 arithmetic mean for total porosity sandstone Page 6-129
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-F, Parameters for Probabilistic Analysis of Varying Contamination Layer Thickness Parameter Parameter Class1 Priority2 Units Basis for Parameter Selection Value Unsaturated zone 4 P 2 - 0.27 RESRAD Data Collection Handbook Table 3.2 arithmetic mean for effective porosity sandstone Unsaturated zone 4 P 3 - 0.07 Total porosity minus effective porosity per RESRAD Data field capacity Collection Handbook, Section 4.1 Unsaturated zone 4 P 2 m/yr 10 Upper boundary value from RESRAD Data Collection Handbook, hydraulic Table 5.1 for sandstone conductivity Unsaturated zone 4 P 2 - Bounded NUREG/CR-6697, Attachment C, Table 3.5-1 for sand soil-specific b lognormal-n parameter distribution Water Density of saturated P 1 g/cm3 Normal NUREG/CR-6767, Attachment C, Table C-1 distribution for sand zone distribution Saturated zone P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for C-14 distribution Saturated zone P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Ni-63 distribution Saturated zone P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Co-60 distribution Saturated zone P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Sr-90 distribution Saturated zone P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Cs- distribution 134 Saturated zone P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Cs- distribution 137 Saturated zone total P 1 - 0.34 RESRAD Data Collection Handbook Table 3.2 arithmetic mean for porosity sandstone Page 6-130
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-F, Parameters for Probabilistic Analysis of Varying Contamination Layer Thickness Parameter Parameter Class1 Priority2 Units Basis for Parameter Selection Value Saturated zone P 1 - 0.27 RESRAD Data Collection Handbook Table 3.2 arithmetic mean for effective porosity sandstone Saturated zone field P 3 - 0.07 Total porosity minus effective porosity per RESRAD Data capacity Collection Handbook, Section 4.1 Saturated zone P 1 m/yr 10 Upper boundary value from RESRAD Data Collection Handbook, hydraulic Table 5.1 for sandstone conductivity Saturated zone P 2 - Bounded NUREG/CR-6697, Attachment C hydraulic gradient lognormal-n distribution Saturated zone soil- P 2 - Bounded NUREG/CR-6697, Attachment C specific b parameter lognormal-n distribution Length of P 2 m 113 Diameter of the 10,000 m2 contaminated zone contaminated zone parallel to the aquifer flow Water table drop rate P 3 m/yr 0.783 Site specific value applicable to the RSNGS site as reported in the FSAR, Appendix 2C Well-pump intake P 2 m 23 Site specific value applicable to the RSNGS site as reported in the depth (below water FSAR, Appendix 2C table)
Well pumping rate B, P 2 m3/yr Not Used Well pumping rate is not used with the Mass-Balance model for water transport selected - well pumping rate is used to calculated a dilution factor when the Non- Dispersion model is selected.
Model: non-dispersion NA 3 - MB The mass-balance model was chosen as the most conservative or mass balance since it assumes that all of the radionuclides released from the contaminated zone are withdrawn through the well.
Evapotranspiration P 2 - Uniform NUREG/CR-6697, Attachment C coefficient distribution Humidity in air P 3 g/m3 Not Used Not used when the Radon exposure pathway is suppressed Page 6-131
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-F, Parameters for Probabilistic Analysis of Varying Contamination Layer Thickness Parameter Parameter Class1 Priority2 Units Basis for Parameter Selection Value Average annual wind P 2 m/s 3.13 7 mph average annual wind speed for the years of 1930 - 1996 speed reported by the National Climatic Data Center for Stockton, CA (http://www.ncdc.noaa.gov/oa/documentlibrary/wind/wind1996.p df)
Precipitation rate P 2 m/yr 0.38 Mean annual average rainfall measured at Sacramento and Stockton Irrigation mode B 3 - Overhead Behavioral value - ditch irrigation is not the principal method of irrigation in the local region Irrigation rate B 3 m/yr 0.2 Behavioral RESRAD v6.22 default priority 3 value acceptable for this evaluation Runoff coefficient P 2 - Uniform NUREG/CR-6697, Attachment C distribution Watershed area for P 3 m2 1.00E+07 The majority of RSNGS site drains into Clay Creek nearby stream or pond Accuracy for water soil NA 3 - 0.001 Default RESRAD v6.22 priority 3 value acceptable for this computation evaluation Ingestion Fruit, vegetable, and M, B 2 kg/yr Not Used Not used with ingestion exposure pathways suppressed in grain consumption accordance with the Industrial Worker Scenario rate Leafy vegetable M, B 3 kg/yr Not Used Not used with ingestion exposure pathways suppressed in consumption accordance with the Industrial Worker Scenario Milk consumption M, B 2 L/yr Not Used Not used with ingestion exposure pathways suppressed in accordance with the Industrial Worker Scenario Meat and poultry M, B 3 kg/yr Not Used Not used with ingestion exposure pathways suppressed in consumption accordance with the Industrial Worker Scenario Fish consumption rate M, B 3 kg/yr Not Used Not used with ingestion exposure pathways suppressed in accordance with the Industrial Worker Scenario Other seafood M, B 3 kg/yr Not Used Not used with ingestion exposure pathways suppressed in consumption rate accordance with the Industrial Worker Scenario Aquatic food B, P 2 - Not Used Not used with ingestion exposure pathways suppressed in contaminated accordance with the Industrial Worker Scenario fraction Page 6-132
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-F, Parameters for Probabilistic Analysis of Varying Contamination Layer Thickness Parameter Parameter Class1 Priority2 Units Basis for Parameter Selection Value Soil ingestion rate M, B 2 g/yr Triangular NUREG/CR-6697, Attachment C distribution Drinking water intake M, B 2 L/yr Truncated NUREG/CR-6697, Attachment C lognormal-n distribution Storage time for fruits, B 3 d Not Used Not used with ingestion exposure pathways suppressed in non-leafy accordance with the Industrial Worker Scenario vegetables, and grain Storage time for leafy B 3 d Not Used Not used with ingestion exposure pathways suppressed in vegetables accordance with the Industrial Worker Scenario Storage time for milk B 3 d Not Used Not used with ingestion exposure pathways suppressed in accordance with the Industrial Worker Scenario Storage time for meat B 3 d Not Used Not used with ingestion exposure pathways suppressed in accordance with the Industrial Worker Scenario Storage time for fish B 3 d Not Used Not used with ingestion exposure pathways suppressed in accordance with the Industrial Worker Scenario Storage time for B 3 d Not Used Not used with ingestion exposure pathways suppressed in crustacea and accordance with the Industrial Worker Scenario mollusks Storage time for well B 3 d 1 Behavioral RESRAD v6.22 default priority 3 value water Storage time for B 3 d 1 Behavioral RESRAD v6.22 default priority 3 value surface water Storage time for B 3 d Not Used Not used with ingestion exposure pathways suppressed in livestock fodder accordance with the Industrial Worker Scenario Drinking water B, P 3 - 1 Default RESRAD v6.22 Behavioral/Physical priority 3 value contaminated acceptable for this evaluation fraction Household water B, P 3 - Not Used Not used when the radon exposure pathway is suppressed contaminated fraction Livestock water B, P 3 - Not Used Not used with ingestion exposure pathways suppressed in contaminated accordance with the Industrial Worker Scenario fraction Page 6-133
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-F, Parameters for Probabilistic Analysis of Varying Contamination Layer Thickness Parameter Parameter Class1 Priority2 Units Basis for Parameter Selection Value Irrigation water B, P 3 - Not Used Not used with ingestion exposure pathways suppressed in contaminated accordance with the Industrial Worker Scenario fraction Plant food B, P 3 - Not Used Not used with ingestion exposure pathways suppressed in contaminated accordance with the Industrial Worker Scenario fraction Meat contaminated B, P 3 - Not Used Not used with ingestion exposure pathways suppressed in fraction accordance with the Industrial Worker Scenario Milk contaminated B, P 3 - Not Used Not used with ingestion exposure pathways suppressed in fraction accordance with the Industrial Worker Scenario Livestock fodder M 3 kg/d Not Used Not used with meat and milk exposure pathways suppressed in intake rate for meat accordance with the Industrial Worker Scenario Livestock fodder M 3 kg/d Not Used Not used with meat and milk exposure pathways suppressed in intake rate for milk accordance with the Industrial Worker Scenario Livestock water intake M 3 L/d Not Used Not used with meat and milk exposure pathways suppressed in rate for meat accordance with the Industrial Worker Scenario Livestock water intake M 3 L/d Not Used Not used with meat and milk exposure pathways suppressed in rate for milk accordance with the Industrial Worker Scenario Livestock intake of soil M 3 kg/d Not Used Not used with meat and milk exposure pathways suppressed in accordance with the Industrial Worker Scenario Mass loading for foliar P 3 g/m3 Not Used Not used with vegetation exposure pathways suppressed in deposition accordance with the Industrial Worker Scenario Depth of soil mixing P 2 m Triangular NUREG/CR-6697, Attachment C layer distribution Depth of roots P 1 m Not Used Not used with vegetation exposure pathways suppressed in accordance with the Industrial Worker Scenario Groundwater fractional B, P 3 - 1 Default RESRAD v6.22 Behavioral/Physical priority 3 value usage for drinking acceptable for this evaluation water Groundwater fractional B, P 3 - Not Used Not used when the radon exposure pathway is suppressed usage for household water Groundwater fractional B, P 3 - Not Used Not used with ingestion exposure pathways suppressed in usage for livestock accordance with the Industrial Worker Scenario water Page 6-134
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-F, Parameters for Probabilistic Analysis of Varying Contamination Layer Thickness Parameter Parameter Class1 Priority2 Units Basis for Parameter Selection Value Groundwater fractional B, P 3 - Not Used Not used with ingestion exposure pathways suppressed in usage for irrigation accordance with the Industrial Worker Scenario water Wet weight crop yield P 2 kg/m2 Not Used Not used with vegetation exposure pathways suppressed in for non-leafy plants accordance with the Industrial Worker Scenario Wet weight crop yield P 3 kg/m2 Not Used Not used with vegetation exposure pathways suppressed in for leafy plants accordance with the Industrial Worker Scenario Wet weight crop yield P 3 kg/m2 Not Used Not used with vegetation exposure pathways suppressed in for fodder accordance with the Industrial Worker Scenario Length of growing P 3 yr Not Used Not used with vegetation exposure pathways suppressed in season for non-leafy accordance with the Industrial Worker Scenario vegetables Length of growing P 3 yr Not Used Not used with vegetation exposure pathways suppressed in season for leafy accordance with the Industrial Worker Scenario vegetables Length of growing P 3 yr Not Used Not used with vegetation exposure pathways suppressed in season for fodder accordance with the Industrial Worker Scenario Translocation factor P 3 - Not Used Not used with vegetation exposure pathways suppressed in for non-leafy accordance with the Industrial Worker Scenario vegetables Translocation factor P 3 - Not Used Not used with vegetation exposure pathways suppressed in for leafy vegetables accordance with the Industrial Worker Scenario Translocation factor P 3 - Not Used Not used with vegetation exposure pathways suppressed in for fodder accordance with the Industrial Worker Scenario Weathering removal P 2 1/yr Not Used Not used with vegetation exposure pathways suppressed in constant accordance with the Industrial Worker Scenario Dry foliar interception P 3 - Not Used Not used with vegetation exposure pathways suppressed in fraction for non-leafy accordance with the Industrial Worker Scenario vegetables Dry foliar interception P 3 - Not Used Not used with vegetation exposure pathways suppressed in fraction for leafy accordance with the Industrial Worker Scenario vegetables Dry foliar interception P 3 - Not Used Not used with vegetation exposure pathways suppressed in fraction for fodder accordance with the Industrial Worker Scenario Page 6-135
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-F, Parameters for Probabilistic Analysis of Varying Contamination Layer Thickness Parameter Parameter Class1 Priority2 Units Basis for Parameter Selection Value Wet foliar interception P 3 - Not Used Not used with vegetation exposure pathways suppressed in fraction for non-leafy accordance with the Industrial Worker Scenario vegetables Wet foliar interception P 2 - Not Used Not used with vegetation exposure pathways suppressed in fraction for leafy accordance with the Industrial Worker Scenario vegetables Wet foliar interception P 3 - Not Used Not used with vegetation exposure pathways suppressed in fraction for fodder accordance with the Industrial Worker Scenario Slope factor - external M 3 (risk/yr)/ Nuclide specific Metabolic RESRAD v6.22 default priority 3 value (pCi/g)
Slope factor - M 3 risk/pCi Nuclide specific Metabolic RESRAD v6.22 default priority 3 value inhalation Slope factor - M 3 risk/pCi Nuclide specific Metabolic RESRAD v6.22 default priority 3 value ingestion Plant transfer factor P 1 - Nuclide specific Not used with ingestion exposure pathways suppressed in
- Not Used accordance with the Industrial Worker Scenario Meat transfer factor P 2 (pCi/kg)/ Nuclide specific Not used with ingestion exposure pathways suppressed in (pCi/d) - Not Used accordance with the Industrial Worker Scenario Milk transfer factor P 2 (pCi/L)/ Nuclide specific Not used with ingestion exposure pathways suppressed in (pCi/d) - Not Used accordance with the Industrial Worker Scenario Bioaccumulation factor P 2 (pCi/kg)/ Nuclide specific Not used with ingestion exposure pathways suppressed in for fish (pCi/L) - Not Used accordance with the Industrial Worker Scenario Bioaccumulation factor P 3 (pCi/kg)/ Nuclide specific Not used with ingestion exposure pathways suppressed in for crustacea and (pCi/L) - Not Used accordance with the Industrial Worker Scenario mollusks Occupancy (Inhalation & External Parameters)
Inhalation rate M, B 3 m3/yr Triangular NUREG/CR-6697, Attachment C distribution Inhalation dose M 3 mrem/pCi Nuclide Metabolic RESRAD v6.22 default priority 3 value conversion factors Specific Ingestion dose M 3 mrem/pCi Nuclide Metabolic RESRAD v6.22 default priority 3 value conversion factors Specific Mass loading for P, B 2 g/m3 Continuous NUREG/CR-6697, Attachment C inhalation linear distribution Page 6-136
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-F, Parameters for Probabilistic Analysis of Varying Contamination Layer Thickness Parameter Parameter Class1 Priority2 Units Basis for Parameter Selection Value Indoor dust filtration P, B 2 - Uniform NUREG/CR-6697, Attachment C factor distribution External gamma P 2 - 0.397 Deterministic sensitive parameter value determined in shielding factor DTBD-05-005 Building foundation P 3 m Not Used The Radon Exposure Pathway is not used thickness Building foundation P 3 g/m3 Not Used The Radon Exposure Pathway is not used bulk density Building foundation P 3 - Not Used The Radon Exposure Pathway is not used total porosity Building foundation P 3 - Not Used The Radon Exposure Pathway is not used volumetric water content Building foundation P 3 m2/s Not Used The Radon Exposure Pathway is not used radon diffusion coefficient Contaminated soil P 3 m2/s Not Used The Radon Exposure Pathway is not used zone radon diffusion coefficient Radon vertical P 3 m Not Used The Radon Exposure Pathway is not used dimension of mixing Building air exchange P, B 3 1/hr Not Used The Radon Exposure Pathway is not used rate Building (room) height P 3 m Not Used The Radon Exposure Pathway is not used Building indoor area P 3 - Not Used The Radon Exposure Pathway is not used factor Foundation depth P 3 m Not Used The Radon Exposure Pathway is not used below ground surface Radon-222 emanation P 3 - Not Used The Radon Exposure Pathway is not used coefficient Radon-220 emanation P 3 - Not Used The Radon Exposure Pathway is not used coefficient Indoor time fraction B 3 - 0.114 50% of a work year (2000 hrs.) spent inside an industrial facility Page 6-137
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-F, Parameters for Probabilistic Analysis of Varying Contamination Layer Thickness Parameter Parameter Class1 Priority2 Units Basis for Parameter Selection Value Outdoor time fraction B 3 - 0.114 50% of a work year (2000 hrs.) spent outside at an industrial facility Exposure duration B 3 yr 30 Behavioral RESRAD v6.22 default priority 3 value 1
Parameter Classification: P = Physical; B = Behavioral; M = Metabolic 2
1 = high priority parameter, 2 = medium priority parameter, 3 = low priority parameter Page 6-138
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological April 2006 Criteria for License Termination Appendix 6-G, Dose Modeling Distribution Parameters - Industrial Worker Scenario Distributions Statistical Parameters2 1
Parameter Priority Distribution 1 2 3 4 Density of saturated zone 1 Normal 1.578 0.158 - -
Contaminated zone distribution 1 Truncated lognormal-n 2.40 3.22 0.001 0.999 coefficient for C-14 Contaminated zone distribution 1 Truncated lognormal-n 6.05 1.46 0.001 0.999 coefficient for Ni-63 Contaminated zone distribution 1 Truncated lognormal-n 5.46 2.53 0.001 0.999 coefficient for Co-60 Contaminated zone distribution 1 Truncated lognormal-n 3.45 2.12 0.001 0.999 coefficient for Sr-90 Contaminated zone distribution 1 Truncated lognormal-n 6.10 2.33 0.001 0.999 coefficient for Cs-134 Unsaturated zone 1 distribution 1 Truncated lognormal-n 2.40 3.22 0.001 0.999 coefficient for C-14 Unsaturated zone 1 distribution 1 Truncated lognormal-n 6.05 1.46 0.001 0.999 coefficient for Ni-63 Unsaturated zone 1 distribution 1 Truncated lognormal-n 5.46 2.53 0.001 0.999 coefficient for Co-60 Unsaturated zone 1 distribution 1 Truncated lognormal-n 3.45 2.12 0.001 0.999 coefficient for Sr-90 Unsaturated zone 1 distribution 1 Truncated lognormal-n 6.10 2.33 0.001 0.999 coefficient for Cs-134 Unsaturated zone 1 distribution 1 Truncated lognormal-n 6.10 2.33 0.001 0.999 coefficient for Cs-137 Unsaturated zone 2 distribution 1 Truncated lognormal-n 2.40 3.22 0.001 0.999 coefficient for C-14 Unsaturated zone 2 distribution 1 Truncated lognormal-n 6.05 1.46 0.001 0.999 coefficient for Ni-63 Unsaturated zone 2 distribution 1 Truncated lognormal-n 5.46 2.53 0.001 0.999 coefficient for Co-60 Unsaturated zone 2 distribution 1 Truncated lognormal-n 3.45 2.12 0.001 0.999 coefficient for Sr-90 Unsaturated zone 2 distribution 1 Truncated lognormal-n 6.10 2.33 0.001 0.999 coefficient for Cs-134 Unsaturated zone 2 distribution 1 Truncated lognormal-n 6.10 2.33 0.001 0.999 coefficient for Cs-137 Unsaturated zone 3 distribution 1 Truncated lognormal-n 2.40 3.22 0.001 0.999 coefficient for C-14 Unsaturated zone 3 distribution 1 Truncated lognormal-n 6.05 1.46 0.001 0.999 coefficient for Ni-63 Unsaturated zone 3 distribution 1 Truncated lognormal-n 5.46 2.53 0.001 0.999 coefficient for Co-60 Unsaturated zone 3 distribution 1 Truncated lognormal-n 3.45 2.12 0.001 0.999 coefficient for Sr-90 Unsaturated zone 3 distribution 1 Truncated lognormal-n 6.10 2.33 0.001 0.999 coefficient for Cs-134 Unsaturated zone 3 distribution 1 Truncated lognormal-n 6.10 2.33 0.001 0.999 coefficient for Cs-137 Unsaturated zone 4 distribution 1 Truncated lognormal-n 2.40 3.22 0.001 0.999 coefficient for C-14 Unsaturated zone 4 distribution 1 Truncated lognormal-n 6.05 1.46 0.001 0.999 coefficient for Ni-63 Unsaturated zone 4 distribution 1 Truncated lognormal-n 5.46 2.53 0.001 0.999 coefficient for Co-60 Unsaturated zone 4 distribution 1 Truncated lognormal-n 3.45 2.12 0.001 0.999 coefficient for Sr-90 Unsaturated zone 4 distribution 1 Truncated lognormal-n 6.10 2.33 0.001 0.999 coefficient for Cs-134 Unsaturated zone 4 distribution 1 Truncated lognormal-n 6.10 2.33 0.001 0.999 coefficient for Cs-137 Page 6-139
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological April 2006 Criteria for License Termination Appendix 6-G, Dose Modeling Distribution Parameters - Industrial Worker Scenario Distributions Statistical Parameters2 1
Parameter Priority Distribution 1 2 3 4 Saturated zone distribution 1 Truncated lognormal-n 2.40 3.22 0.001 0.999 coefficient for C-14 Saturated zone distribution 1 Truncated lognormal-n 6.05 1.46 0.001 0.999 coefficient for Ni-63 Saturated zone distribution 1 Truncated lognormal-n 5.46 2.53 0.001 0.999 coefficient for Co-60 Saturated zone distribution 1 Truncated lognormal-n 3.45 2.12 0.001 0.999 coefficient for Sr-90 Saturated zone distribution 1 Truncated lognormal-n 6.10 2.33 0.001 0.999 coefficient for Cs-134 Saturated zone distribution 1 Truncated lognormal-n 6.10 2.33 0.001 0.999 coefficient for Cs-137 Contaminated zone b parameter 2 Bounded lognormal-n 1.06 0.66 0.5 30 3
Contaminated zone erosion rate 2 Continuous logarithmic Default - - -
Contaminated zone total porosity 2 Truncated normal 0.425 0.0867 0.001 0.999 Contaminated zone hydraulic 2 Bounded lognormal-n 2.66 0.475 3.302 62.2 conductivity Depth of soil mixing layer 2 Triangular 0.0 0.6 0.15 -
Drinking water intake 2 Truncated lognormal-n 6.015 0.489 0.001 0.999 Evapotranspiration coefficient 2 Uniform 0.5 0.75 - -
Indoor dust filtration factor 2 Uniform 0.15 0.95 - -
3 Mass loading for inhalation 2 Continuous linear Default - - -
Runoff coefficient 2 Uniform 0.1 0.8 - -
Saturated zone b parameter 2 Bounded lognormal-n 1.06 0.66 0.5 30 Saturated zone hydraulic gradient 2 Bounded lognormal-n -5.11 1.77 7E-05 0.5 Soil ingestion rate 2 Triangular 0 36.5 18.3 -
Unsaturated zone 1 density 2 Normal 1.33 0.202 - -
Unsaturated zone 1 effective 2 Truncated normal 0.425 0.110 0.0839 0.766 porosity Unsaturated zone 1 hydraulic 2 Bounded lognormal-n 2.66 0.475 3.302 62.2 conductivity Unsaturated zone 1 b parameter 2 Bounded lognormal-n 1.16 0.140 2.06 4.89 Unsaturated zone 1 total porosity 2 Truncated normal 0.46 0.11 0.1161 0.7959 Unsaturated zone 2 density 2 Normal 1.578 0.158 - -
Unsaturated zone 2 effective 2 Truncated normal 0.383 0.0610 0.195 0.572 porosity Unsaturated zone 2 hydraulic 2 Bounded lognormal-n 1.398 1.842 110 5870 conductivity Unsaturated zone 2 b parameter 2 Bounded lognormal-n -0.0253 0.216 0.501 1.90 Unsaturated zone 2 total porosity 2 Truncated normal 0.43 0.06 0.2446 0.6154 Unsaturated zone 3 density 2 Normal 1.33 0.202 - -
Unsaturated zone 3 hydraulic 2 Bounded lognormal-n 2.66 0.475 3.302 62.2 conductivity Unsaturated zone 3 b parameter 2 Bounded lognormal-n 1.16 0.140 2.06 4.89 Unsaturated zone 4 density 2 Normal 1.578 0.158 - -
Unsaturated zone 4 hydraulic 2 Bounded lognormal-n 1.398 1.842 110 5870 conductivity Unsaturated zone 4 b parameter 2 Bounded lognormal-n -0.0253 0.216 0.501 1.90 Thickness of evasion layer of C-14 in 2 Triangular 0.5 1.0 0.75 -
soil Unsaturated zone 1 field capacity 3 Truncated normal 0.236 0.0578 0.0575 0.415 Unsaturated zone 2 field capacity 3 Truncated normal 0.0607 0.0150 0.0280 0.124 Inhalation rate 3 Triangular 4,380 13,100 8,400 -
Notes:
1 1 = high priority parameter, 2 = medium priority parameter 2
Distributions Statistical Parameter Page 6-140
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological April 2006 Criteria for License Termination Appendix 6-G, Dose Modeling Distribution Parameters - Industrial Worker Scenario Bounded lognormal-n: 1 = underlying mean value, 2 = underlying standard deviation, 3 = lower limit, 4
= upper limit Lognormal: 1 = mean, 2 = error factor Normal: 1 = mean, 2 = standard deviation Triangular: 1 = minimum, 2 = maximum, 3 = most likely Truncated lognormal-n: 1 = underlying mean value, 2 = underlying standard deviation, 3 = lower quantile, 4 = upper quantile Truncated normal: 1 = mean, 2 = standard deviation, 3 = lower quantile, 4 = upper quantile Uniform: 1 = minimum, 2 = maximum 3
Default RESRAD v6.22 distribution parameters were used Page 6-141
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological April 2006 Criteria for License Termination Appendix 6-G, Dose Modeling Distribution Parameters - Industrial Worker Scenario This page intentionally left blank Page 6-142
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-H, Parameters for Probabilistic Analysis of Discrete Pockets of Contamination Parameter Parameter Class1 Priority2 Units Basis for Parameter Selection Value Contamination Thickness of P 2 m 2 Assigned value for depth of discrete pocket of contamination contaminated zone Area of contaminated P 2 m2 100 Assigned surface area of discrete pocket of contamination zone Shape of the P 3 - Circular Default RESRAD v6.22 Physical priority 3 value acceptable for contaminated zone this evaluation Initial concentration of P 2 pCi/g Various Table 6-6 maximum allowable radionuclide mixture concentrations principal radionuclides in soil Initial concentration of P 3 pCi/L 0 Not Used for this evaluation radionuclides present in ground water Leach rate P 3 1/yr 0 Default Physical value to invoke the calculation of this parameter via a first-order leaching model that uses the value of the soil/water distribution coefficient in the contaminated zone Solubility limit P 3 mol/L 0 Default Physical value - not used by RESRAD v6.22 with leach rate flag set to 0 Time since placement P 3 yr 0 Default RESRAD v6.22 Physical priority 3 value acceptable for of material this evaluation Times for calculation P 3 yr 1, 3, 10, 30, Default RESRAD v6.22 Physical priority 3 value acceptable for 100, 300, 1000 this evaluation Contaminated zone P 1 g/cm3 Truncated NUREG/CR-6767, Attachment C generic distribution due to density normal variations in soil type depending on depth of discrete pocket of distribution contamination Contaminated zone P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for C-14 distribution Contaminated zone P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Ni-63 distribution Contaminated zone P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Co-60 distribution Page 6-143
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-H, Parameters for Probabilistic Analysis of Discrete Pockets of Contamination Parameter Parameter Class1 Priority2 Units Basis for Parameter Selection Value Contaminated zone P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Sr-90 distribution Contaminated zone P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Cs- distribution 134 Contaminated zone P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Cs- distribution 137 Use plant/soil ratio NA 3 Check No For purposes of this evaluation, the code should not be allowed to box calculate the distribution coefficients from the plant root uptake factors because they are calculated probabilistically Contaminated zone P 3 - 0.2 Default RESRAD v6.22 Priority 3 Physical priority 3 value field capacity acceptable for this evaluation Contaminated zone P,B 2 m/yr Continuous NUREG/CR-6697, Attachment C (RESRAD default values) erosion rate logarithmic distribution Contaminated zone P 2 - Truncated NUREG/CR-6697, Attachment C generic distribution due to total porosity normal variations in soil type depending on depth of discrete pocket of distribution contamination Contaminated zone P 2 m/yr Bounded NUREG/CR-6697, Attachment C generic distribution due to hydraulic lognormal-n variations in soil type depending on depth of discrete pocket of conductivity distribution contamination Contaminated zone b P 2 - Bounded NUREG/CR-6697, Attachment C generic distribution due to parameter lognormal-n variations in soil type depending on depth of discrete pocket of distribution contamination Carbon-Model Parameters Thickness of evasion P 2 m Triangular NUREG/CR-6697, Attachment C layer of C-14 in soil distribution C-14 evasion flux rate P 3 1/s 7E-07 Default RESRAD v6.22 Physical priority 3 value acceptable for from soil this evaluation C-12 concentration in P 3 g/cm3 2E-05 Default RESRAD v6.22 Physical priority 3 value acceptable for local water this evaluation Page 6-144
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-H, Parameters for Probabilistic Analysis of Discrete Pockets of Contamination Parameter Parameter Class1 Priority2 Units Basis for Parameter Selection Value C-12 concentration in P 3 g/g 0.03 Default RESRAD v6.22 Physical priority 3 value acceptable for contaminated soil this evaluation Fraction of vegetation P 3 - 0.02 Default RESRAD v6.22 Physical priority 3 value acceptable for carbon absorbed this evaluation from soil Fraction of vegetation P 3 - 0.98 Default RESRAD v6.22 Physical priority 3 value acceptable for carbon absorbed this evaluation from air C-12 evasion flux rate P 3 1/s 1E-10 Default RESRAD v6.22 Physical priority 3 value acceptable for from soil this evaluation Grain fraction in beef B 3 - 0.8 Default RESRAD v6.22 Physical priority 3 value acceptable for cattle feed this evaluation Grain fraction in milk B 3 - 0.2 Default RESRAD v6.22 Physical priority 3 value acceptable for cow feed this evaluation DCF correction factor P 3 - 88.94 Default RESRAD v6.22 Physical priority 3 value acceptable for for gaseous forms of this evaluation C-14 Soil Cover depth P 2 m 0, 0.25, 0.5, 1, Depth of discrete contamination surface below the soil surface 2.5, 5 and 10 Density of cover P 1 g/cm3 Truncated NUREG/CR-6767, Attachment C generic distribution due to material normal variations in soil type depending on depth of discrete pocket of distribution contamination Cover total porosity P 3 - Not Used Radon is not used in this evaluation Cover volumetric P 3 - Not Used Radon is not used in this evaluation water content Cover radon diffusion P 3 m2/s Not Used Radon is not used in this evaluation coefficient Cover erosion rate P,B 2 m/yr Continuous NUREG/CR-6697, Attachment C (RESRAD default values) logarithmic distribution Number of P 3 - 3, 3, 3, 2, 2, 2 Simplified hydrogeological model assumptions for various depths unsaturated zones and 2 of discrete pockets of contamination Unsaturated zone 1 P 1 m 1.505, 1.255, Thickness of fine soil layer above the siltstone layer thickness 0.755, 0, 0, 0, 0 Page 6-145
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-H, Parameters for Probabilistic Analysis of Discrete Pockets of Contamination Parameter Parameter Class1 Priority2 Units Basis for Parameter Selection Value Unsaturated zone 1 P 2 g/cm3 Truncated NUREG/CR-6767, Attachment C generic distribution due to density normal variations in soil type depending on depth of discrete pocket of distribution contamination Unsaturated zone 1 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for C-14 distribution Unsaturated zone 1 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Ni-63 distribution Unsaturated zone 1 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Co-60 distribution Unsaturated zone 1 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Sr-90 distribution Unsaturated zone 1 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Cs- distribution 134 Unsaturated zone 1 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Cs- distribution 137 Unsaturated zone 1 P 2 - Truncated NUREG/CR-6697, Attachment C generic distribution due to total porosity normal variations in soil type depending on depth of discrete pocket of distribution contamination Unsaturated zone 1 P 2 - Truncated NUREG/CR-6697, Attachment C generic distribution due to effective porosity normal variations in soil type depending on depth of discrete pocket of distribution contamination Unsaturated zone 1 P 3 - 0.2 RESRAD default value acceptable for this evaluation field capacity Unsaturated zone 1 P 2 m/yr Bounded NUREG/CR-6697, Attachment C generic distribution due to hydraulic lognormal-n variations in soil type depending on depth of discrete pocket of conductivity distribution contamination Page 6-146
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-H, Parameters for Probabilistic Analysis of Discrete Pockets of Contamination Parameter Parameter Class1 Priority2 Units Basis for Parameter Selection Value Unsaturated zone 1 P 2 - Bounded NUREG/CR-6697, Attachment C generic distribution due to soil-specific b lognormal-n variations in soil type depending on depth of discrete pocket of parameter distribution contamination Unsaturated zone 2 P 1 m 25.6, 25.6, Thickness of siltstone layer thickness 25.6, 25.35, 23.85, 21.35, 16.35 Unsaturated zone 2 P 2 g/cm3 Truncated NUREG/CR-6767, Attachment C generic distribution due to density normal variations in soil type depending on depth of discrete pocket of distribution contamination Unsaturated zone 2 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for C-14 distribution Unsaturated zone 2 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Ni-63 distribution Unsaturated zone 2 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Co-60 distribution Unsaturated zone 2 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Sr-90 distribution Unsaturated zone 2 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Cs- distribution 134 Unsaturated zone 2 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Cs- distribution 137 Unsaturated zone 2 P 2 - Truncated NUREG/CR-6697, Attachment C generic distribution due to total porosity normal variations in soil type depending on depth of discrete pocket of distribution contamination Unsaturated zone 2 P 2 - Truncated NUREG/CR-6697, Attachment C generic distribution due to effective porosity normal variations in soil type depending on depth of discrete pocket of distribution contamination Page 6-147
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-H, Parameters for Probabilistic Analysis of Discrete Pockets of Contamination Parameter Parameter Class1 Priority2 Units Basis for Parameter Selection Value Unsaturated zone 2 P 3 - 0.2 RESRAD default value acceptable for this evaluation field capacity Unsaturated zone 2 P 2 m/yr Bounded NUREG/CR-6697, Attachment C generic distribution due to hydraulic lognormal-n variations in soil type depending on depth of discrete pocket of conductivity distribution contamination Unsaturated zone 2 P 2 - Bounded NUREG/CR-6697, Attachment C generic distribution due to soil-specific b lognormal-n variations in soil type depending on depth of discrete pocket of parameter distribution contamination Unsaturated zone 3 P 1 m 10.82 Thickness of unsaturated sandstone layer thickness Unsaturated zone 3 P 2 g/cm3 Truncated NUREG/CR-6767, Attachment C generic distribution due to density normal variations in soil type depending on depth of discrete pocket of distribution contamination Unsaturated zone 3 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for C-14 distribution Unsaturated zone 3 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Ni-63 distribution Unsaturated zone 3 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Co-60 distribution Unsaturated zone 3 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Sr-90 distribution Unsaturated zone 3 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Cs- distribution 134 Unsaturated zone 3 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Cs- distribution 137 Page 6-148
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-H, Parameters for Probabilistic Analysis of Discrete Pockets of Contamination Parameter Parameter Class1 Priority2 Units Basis for Parameter Selection Value Unsaturated zone 3 P 2 - Truncated NUREG/CR-6697, Attachment C generic distribution due to total porosity normal variations in soil type depending on depth of discrete pocket of distribution contamination Unsaturated zone 3 P 2 - Truncated NUREG/CR-6697, Attachment C generic distribution due to effective porosity normal variations in soil type depending on depth of discrete pocket of distribution contamination Unsaturated zone 3 P 3 - 0.2 RESRAD default value acceptable for this evaluation field capacity Unsaturated zone 3 P 2 m/yr Bounded NUREG/CR-6697, Attachment C generic distribution due to hydraulic lognormal-n variations in soil type depending on depth of discrete pocket of conductivity distribution contamination Unsaturated zone 3 P 2 - Bounded NUREG/CR-6697, Attachment C generic distribution due to soil-specific b lognormal-n variations in soil type depending on depth of discrete pocket of parameter distribution contamination Water Density of saturated P 1 g/cm3 Truncated NUREG/CR-6767, Attachment C generic distribution due to zone normal variations in soil type depending on depth of discrete pocket of distribution contamination Saturated zone P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for C-14 distribution Saturated zone P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Ni-63 distribution Saturated zone P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Co-60 distribution Saturated zone P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Sr-90 distribution Saturated zone P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Cs- distribution 134 Page 6-149
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-H, Parameters for Probabilistic Analysis of Discrete Pockets of Contamination Parameter Parameter Class1 Priority2 Units Basis for Parameter Selection Value Saturated zone P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Cs- distribution 137 Saturated zone total P 1 - Truncated NUREG/CR-6697, Attachment C generic distribution due to porosity normal variations in soil type depending on depth of discrete pocket of distribution contamination Saturated zone P 1 - Truncated NUREG/CR-6697, Attachment C generic distribution due to effective porosity normal variations in soil type depending on depth of discrete pocket of distribution contamination Saturated zone field P 3 - 0.2 RESRAD default value acceptable for this evaluation capacity Saturated zone P 1 m/yr Bounded NUREG/CR-6697, Attachment C generic distribution due to hydraulic lognormal-n variations in soil type depending on depth of discrete pocket of conductivity distribution contamination Saturated zone P 2 - Bounded NUREG/CR-6697, Attachment C hydraulic gradient lognormal-n distribution Saturated zone soil- P 2 - Bounded NUREG/CR-6697, Attachment C specific b parameter lognormal-n distribution Length of P 2 m 11.3 Diameter of the 100 m2 contaminated zone contaminated zone parallel to the aquifer flow Water table drop rate P 3 m/yr 0.783 Site specific value applicable to the RSNGS site as reported in the FSAR, Appendix 2C Well-pump intake P 2 m 23 Site specific value applicable to the RSNGS site as reported in the depth (below water FSAR, Appendix 2C table)
Well pumping rate B, P 2 m3/yr Not Used Well pumping rate is not used with the Mass-Balance model for water transport selected - well pumping rate is used to calculated a dilution factor when the Non- Dispersion model is selected.
Page 6-150
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-H, Parameters for Probabilistic Analysis of Discrete Pockets of Contamination Parameter Parameter Class1 Priority2 Units Basis for Parameter Selection Value Model: non-dispersion NA 3 - MB The mass-balance model was chosen as the most conservative or mass balance since it assumes that all of the radionuclides released from the contaminated zone are withdrawn through the well.
Evapotranspiration P 2 - Uniform NUREG/CR-6697, Attachment C coefficient distribution Humidity in air P 3 g/m3 Not Used Not used when the Radon exposure pathway is suppressed Average annual wind P 2 m/s 3.13 7 mph average annual wind speed for the years of 1930 - 1996 speed reported by the National Climatic Data Center for Stockton, CA (http://www.ncdc.noaa.gov/oa/documentlibrary/wind/wind1996.p df)
Precipitation rate P 2 m/yr 0.38 Mean annual average rainfall measured at Sacramento and Stockton Irrigation mode B 3 - Overhead Behavioral value - ditch irrigation is not the principal method of irrigation in the local region Irrigation rate B 3 m/yr 0.2 Behavioral RESRAD v6.22 default priority 3 value acceptable for this evaluation Runoff coefficient P 2 - Uniform NUREG/CR-6697, Attachment C distribution Watershed area for P 3 m2 1.00E+07 The entire RSNGS site drains into Clay Creek nearby stream or pond Accuracy for water soil NA 3 - 0.001 Default RESRAD v6.22 priority 3 value acceptable for this computation evaluation Ingestion Fruit, vegetable, and M, B 2 kg/yr Not Used Not used with ingestion exposure pathways suppressed in grain consumption accordance with the Industrial Worker Scenario rate Leafy vegetable M, B 3 kg/yr Not Used Not used with ingestion exposure pathways suppressed in consumption accordance with the Industrial Worker Scenario Milk consumption M, B 2 L/yr Not Used Not used with ingestion exposure pathways suppressed in accordance with the Industrial Worker Scenario Meat and poultry M, B 3 kg/yr Not Used Not used with ingestion exposure pathways suppressed in consumption accordance with the Industrial Worker Scenario Fish consumption rate M, B 3 kg/yr Not Used Not used with ingestion exposure pathways suppressed in accordance with the Industrial Worker Scenario Page 6-151
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-H, Parameters for Probabilistic Analysis of Discrete Pockets of Contamination Parameter Parameter Class1 Priority2 Units Basis for Parameter Selection Value Other seafood M, B 3 kg/yr Not Used Not used with ingestion exposure pathways suppressed in consumption rate accordance with the Industrial Worker Scenario Aquatic food B, P 2 - Not Used Not used with ingestion exposure pathways suppressed in contaminated accordance with the Industrial Worker Scenario fraction Soil ingestion rate M, B 2 g/yr Triangular NUREG/CR-6697, Attachment C distribution Drinking water intake M, B 2 L/yr Truncated NUREG/CR-6697, Attachment C lognormal-n distribution Storage time for fruits, B 3 d Not Used Not used with ingestion exposure pathways suppressed in non-leafy accordance with the Industrial Worker Scenario vegetables, and grain Storage time for leafy B 3 d Not Used Not used with ingestion exposure pathways suppressed in vegetables accordance with the Industrial Worker Scenario Storage time for milk B 3 d Not Used Not used with ingestion exposure pathways suppressed in accordance with the Industrial Worker Scenario Storage time for meat B 3 d Not Used Not used with ingestion exposure pathways suppressed in accordance with the Industrial Worker Scenario Storage time for fish B 3 d Not Used Not used with ingestion exposure pathways suppressed in accordance with the Industrial Worker Scenario Storage time for B 3 d Not Used Not used with ingestion exposure pathways suppressed in crustacea and accordance with the Industrial Worker Scenario mollusks Storage time for well B 3 d 1 Behavioral RESRAD v6.22 default value water Storage time for B 3 d 1 Behavioral RESRAD v6.22 default value surface water Storage time for B 3 d Not Used Not used with ingestion exposure pathways suppressed in livestock fodder accordance with the Industrial Worker Scenario Drinking water B, P 3 - 1 Default RESRAD v6.22 Behavioral/Physical priority 3 value contaminated acceptable for this evaluation fraction Page 6-152
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-H, Parameters for Probabilistic Analysis of Discrete Pockets of Contamination Parameter Parameter Class1 Priority2 Units Basis for Parameter Selection Value Household water B, P 3 - Not Used Not used when the radon exposure pathway is suppressed contaminated fraction Livestock water B, P 3 - Not Used Not used with ingestion exposure pathways suppressed in contaminated accordance with the Industrial Worker Scenario fraction Irrigation water B, P 3 - Not Used Not used with ingestion exposure pathways suppressed in contaminated accordance with the Industrial Worker Scenario fraction Plant food B, P 3 - Not Used Not used with ingestion exposure pathways suppressed in contaminated accordance with the Industrial Worker Scenario fraction Meat contaminated B, P 3 - Not Used Not used with ingestion exposure pathways suppressed in fraction accordance with the Industrial Worker Scenario Milk contaminated B, P 3 - Not Used Not used with ingestion exposure pathways suppressed in fraction accordance with the Industrial Worker Scenario Livestock fodder M 3 kg/d Not Used Not used with meat and milk exposure pathways suppressed in intake rate for meat accordance with the Industrial Worker Scenario Livestock fodder M 3 kg/d Not Used Not used with meat and milk exposure pathways suppressed in intake rate for milk accordance with the Industrial Worker Scenario Livestock water intake M 3 L/d Not Used Not used with meat and milk exposure pathways suppressed in rate for meat accordance with the Industrial Worker Scenario Livestock water intake M 3 L/d Not Used Not used with meat and milk exposure pathways suppressed in rate for milk accordance with the Industrial Worker Scenario Livestock intake of soil M 3 kg/d Not Used Not used with meat and milk exposure pathways suppressed in accordance with the Industrial Worker Scenario Mass loading for foliar P 3 g/m3 Not Used Not used with vegetation exposure pathways suppressed in deposition accordance with the Industrial Worker Scenario Depth of soil mixing P 2 m Triangular NUREG/CR-6697, Attachment C layer distribution Depth of roots P 1 m Not Used Not used with vegetation exposure pathways suppressed in accordance with the Industrial Worker Scenario Groundwater fractional B, P 3 - 1 Default RESRAD v6.22 Behavioral/Physical priority 3 value usage for drinking acceptable for this evaluation water Page 6-153
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-H, Parameters for Probabilistic Analysis of Discrete Pockets of Contamination Parameter Parameter Class1 Priority2 Units Basis for Parameter Selection Value Groundwater fractional B, P 3 - Not Used Not used when the radon exposure pathway is suppressed usage for household water Groundwater fractional B, P 3 - Not Used Not used with ingestion exposure pathways suppressed in usage for livestock accordance with the Industrial Worker Scenario water Groundwater fractional B, P 3 - Not Used Not used with ingestion exposure pathways suppressed in usage for irrigation accordance with the Industrial Worker Scenario water Wet weight crop yield P 2 kg/m2 Not Used Not used with vegetation exposure pathways suppressed in for non-leafy plants accordance with the Industrial Worker Scenario Wet weight crop yield P 3 kg/m2 Not Used Not used with vegetation exposure pathways suppressed in for leafy plants accordance with the Industrial Worker Scenario Wet weight crop yield P 3 kg/m2 Not Used Not used with vegetation exposure pathways suppressed in for fodder accordance with the Industrial Worker Scenario Length of growing P 3 yr Not Used Not used with vegetation exposure pathways suppressed in season for non-leafy accordance with the Industrial Worker Scenario vegetables Length of growing P 3 yr Not Used Not used with vegetation exposure pathways suppressed in season for leafy accordance with the Industrial Worker Scenario vegetables Length of growing P 3 yr Not Used Not used with vegetation exposure pathways suppressed in season for fodder accordance with the Industrial Worker Scenario Translocation factor P 3 - Not Used Not used with vegetation exposure pathways suppressed in for non-leafy accordance with the Industrial Worker Scenario vegetables Translocation factor P 3 - Not Used Not used with vegetation exposure pathways suppressed in for leafy vegetables accordance with the Industrial Worker Scenario Translocation factor P 3 - Not Used Not used with vegetation exposure pathways suppressed in for fodder accordance with the Industrial Worker Scenario Weathering removal P 2 1/yr Not Used Not used with vegetation exposure pathways suppressed in constant accordance with the Industrial Worker Scenario Dry foliar interception P 3 - Not Used Not used with vegetation exposure pathways suppressed in fraction for non-leafy accordance with the Industrial Worker Scenario vegetables Page 6-154
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-H, Parameters for Probabilistic Analysis of Discrete Pockets of Contamination Parameter Parameter Class1 Priority2 Units Basis for Parameter Selection Value Dry foliar interception P 3 - Not Used Not used with vegetation exposure pathways suppressed in fraction for leafy accordance with the Industrial Worker Scenario vegetables Dry foliar interception P 3 - Not Used Not used with vegetation exposure pathways suppressed in fraction for fodder accordance with the Industrial Worker Scenario Wet foliar interception P 3 - Not Used Not used with vegetation exposure pathways suppressed in fraction for non-leafy accordance with the Industrial Worker Scenario vegetables Wet foliar interception P 2 - Not Used Not used with vegetation exposure pathways suppressed in fraction for leafy accordance with the Industrial Worker Scenario vegetables Wet foliar interception P 3 - Not Used Not used with vegetation exposure pathways suppressed in fraction for fodder accordance with the Industrial Worker Scenario Slope factor - external M 3 (risk/yr)/ Nuclide specific Metabolic RESRAD v6.22 default priority 3 value (pCi/g)
Slope factor - M 3 risk/pCi Nuclide specific Metabolic RESRAD v6.22 default priority 3 value inhalation Slope factor - M 3 risk/pCi Nuclide specific Metabolic RESRAD v6.22 default priority 3 value ingestion Plant transfer factor P 1 - Nuclide specific Not used with ingestion exposure pathways suppressed in
- Not Used accordance with the Industrial Worker Scenario Meat transfer factor P 2 (pCi/kg)/ Nuclide specific Not used with ingestion exposure pathways suppressed in (pCi/d) - Not Used accordance with the Industrial Worker Scenario Milk transfer factor P 2 (pCi/L)/ Nuclide specific Not used with ingestion exposure pathways suppressed in (pCi/d) - Not Used accordance with the Industrial Worker Scenario Bioaccumulation factor P 2 (pCi/kg)/ Nuclide specific Not used with ingestion exposure pathways suppressed in for fish (pCi/L) - Not Used accordance with the Industrial Worker Scenario Bioaccumulation factor P 3 (pCi/kg)/ Nuclide specific Not used with ingestion exposure pathways suppressed in for crustacea and (pCi/L) - Not Used accordance with the Industrial Worker Scenario mollusks Occupancy (Inhalation & External Parameters)
Inhalation rate M, B 3 m3/yr Triangular NUREG/CR-6697, Attachment C distribution Inhalation dose M 3 mrem/pCi Nuclide specific Metabolic RESRAD v6.22 default priority 3 value conversion factors Page 6-155
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-H, Parameters for Probabilistic Analysis of Discrete Pockets of Contamination Parameter Parameter Class1 Priority2 Units Basis for Parameter Selection Value Ingestion dose M 3 mrem/pCi Nuclide specific Metabolic RESRAD v6.22 default priority 3 value conversion factors Mass loading for P, B 2 g/m3 Continuous NUREG/CR-6697, Attachment C inhalation linear distribution Indoor dust filtration P, B 2 - Uniform NUREG/CR-6697, Attachment C factor distribution External gamma P 2 - 0.397 Deterministic sensitive parameter value determined in shielding factor DTBD-05-005 Building foundation P 3 m Not Used The Radon Exposure Pathway is not used thickness Building foundation P 3 g/m3 Not Used The Radon Exposure Pathway is not used bulk density Building foundation P 3 - Not Used The Radon Exposure Pathway is not used total porosity Building foundation P 3 - Not Used The Radon Exposure Pathway is not used volumetric water content Building foundation P 3 m2/s Not Used The Radon Exposure Pathway is not used radon diffusion coefficient Contaminated soil P 3 m2/s Not Used The Radon Exposure Pathway is not used zone radon diffusion coefficient Radon vertical P 3 m Not Used The Radon Exposure Pathway is not used dimension of mixing Building air exchange P, B 3 1/hr Not Used The Radon Exposure Pathway is not used rate Building (room) height P 3 m Not Used The Radon Exposure Pathway is not used Building indoor area P 3 - Not Used The Radon Exposure Pathway is not used factor Foundation depth P 3 m Not Used The Radon Exposure Pathway is not used below ground surface Page 6-156
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-H, Parameters for Probabilistic Analysis of Discrete Pockets of Contamination Parameter Parameter Class1 Priority2 Units Basis for Parameter Selection Value Radon-222 emanation P 3 - Not Used The Radon Exposure Pathway is not used coefficient Radon-220 emanation P 3 - Not Used The Radon Exposure Pathway is not used coefficient Indoor time fraction B 3 - 0.114 50% of a work year (2000 hrs.) spent inside an industrial facility Outdoor time fraction B 3 - 0.114 50% of a work year (2000 hrs.) spent outside at an industrial facility Exposure duration B 3 yr 30 Behavioral RESRAD v6.22 default priority 3 value 1
Parameter Classification: P = Physical; B = Behavioral; M = Metabolic 2
1 = high priority parameter, 2 = medium priority parameter, 3 = low priority parameter Page 6-157
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-H, Parameters for Probabilistic Analysis of Discrete Pockets of Contamination This page intentionally left blank Page 6-158
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological April 2006 Criteria for License Termination Appendix 6-I, Distribution Parameters for Analysis of Discrete Pockets of Contamination Distributions Statistical Parameters2 1
Parameter Priority Distribution 1 2 3 4 Contaminated zone distribution 1 Truncated lognormal-n 2.40 3.22 0.001 0.999 coefficient for C-14 Contaminated zone distribution 1 Truncated lognormal-n 6.05 1.46 0.001 0.999 coefficient for Ni-63 Contaminated zone distribution 1 Truncated lognormal-n 5.46 2.53 0.001 0.999 coefficient for Co-60 Contaminated zone distribution 1 Truncated lognormal-n 3.45 2.12 0.001 0.999 coefficient for Sr-90 Contaminated zone distribution 1 Truncated lognormal-n 6.10 2.33 0.001 0.999 coefficient for Cs-134 Contaminated zone distribution 1 Truncated lognormal-n 6.10 2.33 0.001 0.999 coefficient for Cs-137 Unsaturated zone 1 distribution 1 Truncated lognormal-n 2.40 3.22 0.001 0.999 coefficient for C-14 Unsaturated zone 1 distribution 1 Truncated lognormal-n 6.05 1.46 0.001 0.999 coefficient for Ni-63 Unsaturated zone 1 distribution 1 Truncated lognormal-n 5.46 2.53 0.001 0.999 coefficient for Co-60 Unsaturated zone 1 distribution 1 Truncated lognormal-n 3.45 2.12 0.001 0.999 coefficient for Sr-90 Unsaturated zone 1 distribution 1 Truncated lognormal-n 6.10 2.33 0.001 0.999 coefficient for Cs-134 Unsaturated zone 1 distribution 1 Truncated lognormal-n 6.10 2.33 0.001 0.999 coefficient for Cs-137 Unsaturated zone 2 distribution 1 Truncated lognormal-n 2.40 3.22 0.001 0.999 coefficient for C-14 Unsaturated zone 2 distribution 1 Truncated lognormal-n 6.05 1.46 0.001 0.999 coefficient for Ni-63 Unsaturated zone 2 distribution 1 Truncated lognormal-n 5.46 2.53 0.001 0.999 coefficient for Co-60 Unsaturated zone 2 distribution 1 Truncated lognormal-n 3.45 2.12 0.001 0.999 coefficient for Sr-90 Unsaturated zone 2 distribution 1 Truncated lognormal-n 6.10 2.33 0.001 0.999 coefficient for Cs-134 Unsaturated zone 2 distribution 1 Truncated lognormal-n 6.10 2.33 0.001 0.999 coefficient for Cs-137 Unsaturated zone 3 distribution 1 Truncated lognormal-n 2.40 3.22 0.001 0.999 coefficient for C-14 Unsaturated zone 3 distribution 1 Truncated lognormal-n 6.05 1.46 0.001 0.999 coefficient for Ni-63 Unsaturated zone 3 distribution 1 Truncated lognormal-n 5.46 2.53 0.001 0.999 coefficient for Co-60 Unsaturated zone 3 distribution 1 Truncated lognormal-n 3.45 2.12 0.001 0.999 coefficient for Sr-90 Unsaturated zone 3 distribution 1 Truncated lognormal-n 6.10 2.33 0.001 0.999 coefficient for Cs-134 Unsaturated zone 3 distribution 1 Truncated lognormal-n 6.10 2.33 0.001 0.999 coefficient for Cs-137 Saturated zone distribution 1 Truncated lognormal-n 2.40 3.22 0.001 0.999 coefficient for C-14 Saturated zone distribution 1 Truncated lognormal-n 6.05 1.46 0.001 0.999 coefficient for Ni-63 Saturated zone distribution 1 Truncated lognormal-n 5.46 2.53 0.001 0.999 coefficient for Co-60 Saturated zone distribution 1 Truncated lognormal-n 3.45 2.12 0.001 0.999 coefficient for Sr-90 Saturated zone distribution 1 Truncated lognormal-n 6.10 2.33 0.001 0.999 coefficient for Cs-134 Saturated zone distribution 1 Truncated lognormal-n 6.10 2.33 0.001 0.999 coefficient for Cs-137 Page 6-159
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological April 2006 Criteria for License Termination Appendix 6-I, Distribution Parameters for Analysis of Discrete Pockets of Contamination Distributions Statistical Parameters2 1
Parameter Priority Distribution 1 2 3 4 Cover density 1 Truncated normal 1.52 0.230 0.001 0.999 3
Cover erosion rate 2 Continuous logarithmic Default - - -
Contaminated zone density 2 Truncated normal 1.52 0.230 0.001 0.999 Contaminated zone b parameter 2 Bounded lognormal-n 1.06 0.66 0.5 30 3
Contaminated zone erosion rate 2 Continuous logarithmic Default - - -
Contaminated zone total porosity 2 Truncated normal 0.425 0.0867 0.001 0.999 Contaminated zone hydraulic 2 Bounded lognormal-n 2.3 2.11 0.004 9250 conductivity Depth of soil mixing layer 2 Triangular 0.0 0.6 0.15 -
Drinking water intake 2 Truncated lognormal-n 6.015 0.489 0.001 0.999 Evapotranspiration coefficient 2 Uniform 0.5 0.75 - -
Indoor dust filtration factor 2 Uniform 0.15 0.95 - -
Inhalation rate 3 Triangular 4,380 13,100 8,400 -
3 Mass loading for inhalation 2 Continuous linear Default - - -
Soil ingestion rate 2 Triangular 0 36.5 18.3 -
Runoff coefficient 2 Uniform 0.1 0.8 - -
Density of saturated zone 1 Truncated normal 1.52 0.230 0.001 0.999 Saturated zone b parameter 2 Bounded lognormal-n 1.06 0.66 0.5 30 Saturated zone hydraulic 2 Bounded lognormal-n 2.3 2.11 0.004 9250 conductivity Saturated zone hydraulic gradient 2 Bounded lognormal-n -5.11 1.77 7E-05 0.5 Saturated zone total porosity 2 Truncated normal 0.425 0.0867 0.001 0.999 Saturated zone effective porosity 2 Truncated normal 0.355 0.0906 0.001 0.999 Unsaturated zone 1 density 2 Truncated normal 1.52 0.230 0.001 0.999 Unsaturated zone 1 total porosity 2 Truncated normal 0.425 0.0867 0.001 0.999 Unsaturated zone 1 effective 2 Truncated normal 0.355 0.0906 0.001 0.999 porosity Unsaturated zone 1 hydraulic 2 Bounded lognormal-n 2.3 2.11 0.004 9250 conductivity Unsaturated zone 1 b parameter 2 Bounded lognormal-n 1.06 0.66 0.5 30 Unsaturated zone 2 density 2 Truncated normal 1.52 0.230 0.001 0.999 Unsaturated zone 2 total porosity 2 Truncated normal 0.425 0.0867 0.001 0.999 Unsaturated zone 2 effective 2 Truncated normal 0.355 0.0906 0.001 0.999 porosity Unsaturated zone 2 hydraulic 2 Bounded lognormal-n 2.3 2.11 0.004 9250 conductivity Unsaturated zone 2 b parameter 2 Bounded lognormal-n 1.06 0.66 0.5 30 Unsaturated zone 3 density 2 Truncated normal 1.52 0.230 0.001 0.999 Unsaturated zone 3 total porosity 2 Truncated normal 0.425 0.0867 0.001 0.999 Unsaturated zone 3 effective 2 Truncated normal 0.355 0.0906 0.001 0.999 porosity Unsaturated zone 3 hydraulic 2 Bounded lognormal-n 2.3 2.11 0.004 9250 conductivity Unsaturated zone 3 b parameter 2 Bounded lognormal-n 1.06 0.66 0.5 30 Thickness of evasion layer of C-14 in 2 Triangular 0.5 1.0 0.75 -
soil Notes:
1 1 = high priority parameter, 2 = medium priority parameter 2
Distributions Statistical Parameter Bounded lognormal-n: 1 = underlying mean value, 2 = underlying standard deviation, 3 = lower limit, 4
= upper limit Lognormal: 1 = mean, 2 = error factor Normal: 1 = mean, 2 = standard deviation Triangular: 1 = minimum, 2 = maximum, 3 = most likely Page 6-160
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological April 2006 Criteria for License Termination Appendix 6-I, Distribution Parameters for Analysis of Discrete Pockets of Contamination Truncated lognormal-n: 1 = underlying mean value, 2 = underlying standard deviation, 3 = lower quantile, 4 = upper quantile Truncated normal: 1 = mean, 2 = standard deviation, 3 = lower quantile, 4 = upper quantile Uniform: 1 = minimum, 2 = maximum 3
Default RESRAD v6.22 distribution parameters were used Page 6-161
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological April 2006 Criteria for License Termination Appendix 6-I, Distribution Parameters for Analysis of Discrete Pockets of Contamination This page intentionally left blank Page 6-162
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-J, RESRAD-BUILD Parameters for Rancho Seco Structural Surfaces Sensitivity Analysis Parameter Parameter Basis for Parameter Name Description Class1 Priority2 Treatment3 Units Value Selection TIME PARAMETERS TTIME Exposure duration B 3 D d 365.25 NUREG/CR-5512, Vol. 1 FTIN Indoor fraction B 2 D - 0.267 NUREG/CR-5512, Vol. 3 Section 5.2.2.4 NTIME Number of times for P 3 D - 2 RESRAD-BUILD default Physical calculation priority 3 value DOSE_TIME Time P 3 D yr 1 NUREG/CR-5512, Vol. 3 Section 5.2.2.4 POINT Maximum time P 3 D - 257 RESRAD-BUILD default Physical integration points priority 3 value BUILDING PARAMETERS NROOM Number of rooms P 3 D - 1 NUREG/CR-5512 UD Deposition velocity P 2 S m/s Loguniform NUREG/CR-6755, Section 3.3 distribution DKSUS Resuspension rate P, B 1 S s-1 Loguniform NUREG/CR-6755, Section 3.1 distribution H Room height P 2 S m Triangular NUREG/CR-6755, Appendix A distribution AREA Room area P 2 S m2 Triangular NUREG/CR-6755, Appendix A distribution LAMBDAT Air exchange rate B 2 S 1/h Truncated NUREG/CR-6755, Section 3.2 (building); lognormal-n LINPUT (room)
Q12 and Q21; Flow rate between rooms B 3 D m3/h 0 This dose model contains only Q23 and Q32 one receptor room Q10 and Q01; Outdoor inflow and B, P 3 D m3/h Not used Outdoor inflow is calculated from Q20 and Q02; outflow room volume and air exchange Q30 and Q03 rate RECEPTOR PARAMETERS ND Number of receptors B 3 D - 1 This dose model contains only one receptor Page 6-163
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-J, RESRAD-BUILD Parameters for Rancho Seco Structural Surfaces Sensitivity Analysis Parameter Parameter Basis for Parameter Name Description Class1 Priority2 Treatment3 Units Value Selection DLVL Receptor room B 3 D - 1 This dose model contains only one receptor room DX Receptor location (x, y, B 3 D m 3, 3, 1 Center of the rooms floor z)
TWGHT Receptor time fraction B 3 D - 1 NUREG/CR-5512, Vol. 3 BRTRATE Receptor M, B 2 S m3/d Triangular NUREG/CR-6755, Appendix A breathing/inhalation distribution rate INGE2 Indirect ingestion rate B 2 S m2/h Loguniform NUREG/CR-6755, Appendix A distribution SOURCE PARAMETERS NS Number of sources P 3 D - 5 Assumes contamination on four walls plus the floor Source 1 - Floor SLVL Source room (also P 3 D - 1 This dose model contains only primary room) one room STYPE Source type P 3 D - Area NUREG/CR-5512 SDIR Source direction P 3 D - z NUREG/CR-5512 SX Source location (x, y, z) P 3 D m 3, 3, 0 X and Y distances are half of the square root of the most likely room area from NUREG/CR-6755, Appendix A, triangular distribution SAREA Source area P 2 D m2 36 Most likely room area from NUREG/CR-6755, Appendix A, triangular distribution AIRFR Air release fraction B 2 S - Triangular NUREG/CR-6755, Appendix A distribution INGE1 Direct ingestion rate B 2 D g/h or 1.34E-06 NUREG/CR-5512, Vol. 3, Section 1/h 5.2.3 1.1E-04 m2/h / 82.03 m2 RMVFR Removable fraction P, B 1 S - Triangular NUREG/CR-6755, Section 3.5 distribution Page 6-164
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-J, RESRAD-BUILD Parameters for Rancho Seco Structural Surfaces Sensitivity Analysis Parameter Parameter Basis for Parameter Name Description Class1 Priority2 Treatment3 Units Value Selection RF0 Source lifetime (also time P, B 2 S d Triangular NUREG/CR-6755, Section 3.6 for source removal) distribution RRF Radon release fraction P, B 3 D - 0 Radon exposure is not regulated by the NRC RNUCACT Radionuclide P 2 D Act/m2 1 Allows for proportional DCGL concentration/activity calculation NREGI0 Number of regions in P 3 D - Not used A volume source is not used in volume source this dose model FCONT0 Contaminated region P 3 D - Not used A volume source is not used in (volume source) this dose model THICK0 Source region thickness P 2 S cm Not used A volume source is not used in (volume source) this dose model DENSI0 Source density (volume P 1 S g/cm3 Not used A volume source is not used in source) this dose model EROS0 Source erosion rate P, B 2 S cm/d Not used A volume source is not used in (volume source) this dose model POROS0 Source porosity P 2 S - Not used A volume source is not used in this dose model EFDIF0 Radon effective diffusion P 3 D m2/sec 0 Radon exposure is not regulated coefficient by the NRC EMANA0 Radon emanation P 3 D - 0 Radon exposure is not regulated fraction by the NRC MTLS Source material D - Not used A volume source is not used in this dose model Source 2 - West wall SLVL Source room (also P 3 D - 1 This dose model contains only primary room) one room STYPE Source type P 3 D - Area NUREG/CR-5512 SDIR Source direction P 3 D - x NUREG/CR-5512 Page 6-165
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-J, RESRAD-BUILD Parameters for Rancho Seco Structural Surfaces Sensitivity Analysis Parameter Parameter Basis for Parameter Name Description Class1 Priority2 Treatment3 Units Value Selection SX Source location (x, y, z) P 3 D m 0, 3, 1.85 Y distance is half of the square root of the most likely room area and z distance is half of the most likely room height from NUREG/CR-6755, Appendix A, triangular distributions SAREA Source area P 2 D m/m2 22.2 Square root of the most likely room area times the most likely room height from NUREG/CR-6755, Appendix A, triangular distributions AIRFR Air release fraction B 2 S - Triangular NUREG/CR-6755, Appendix A distribution INGE1 Direct ingestion rate B 2 D g/h or 1.34E-06 NUREG/CR-5512, Vol. 3, Section 1/h 5.2.3 1.1E0-4 m2/h / 82.03 m2 RMVFR Removable fraction P, B 1 S - Triangular NUREG/CR-6755, Section 3.5 distribution RF0 Source lifetime (also time P, B 2 S d Triangular NUREG/CR-6755, Section 3.6 for source removal) distribution RRF Radon release fraction P, B 3 D - 0 Radon exposure is not regulated by the NRC RNUCACT Radionuclide P 2 D Act/m 1 Allows for proportional DCGL concentration/activity Act/m2 calculation Act/g NREGI0 Number of regions in P 3 D - Not used A volume source is not used in volume source this dose model FCONT0 Contaminated region P 3 D - Not used A volume source is not used in (volume source) this dose model THICK0 Source region thickness P 2 S cm Not used A volume source is not used in (volume source) this dose model DENSI0 Source density (volume P 1 S g/cm3 Not used A volume source is not used in source) this dose model Page 6-166
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-J, RESRAD-BUILD Parameters for Rancho Seco Structural Surfaces Sensitivity Analysis Parameter Parameter Basis for Parameter Name Description Class1 Priority2 Treatment3 Units Value Selection EROS0 Source erosion rate P, B 2 S cm/d Not used A volume source is not used in (volume source) this dose model POROS0 Source porosity P 2 S - Not used A volume source is not used in this dose model EFDIF0 Radon effective diffusion P 3 D m2/sec 0 Radon exposure is not regulated coefficient by the NRC EMANA0 Radon emanation P 3 D - 0 Radon exposure is not regulated fraction by the NRC MTLS Source material D - Not used A volume source is not used in this dose model Source 3 - North wall SLVL Source room (also P 3 D - 1 This dose model contains only primary room) one room STYPE Source type P 3 D - Area NUREG/CR-5512 SDIR Source direction P 3 D - y NUREG/CR-5512 SX Source location (x, y, z) P 3 D m 3, 6, 1.85 X distance is the half of square root of the most likely room area, Y distance is the square root of the most likely room area and Z distance is half of the most likely room height from NUREG/CR-6755, Appendix A, triangular distributions SAREA Source area P 2 D m/m2 22.2 Square root of the most likely room area times the most likely room height from NUREG/CR-6755, Appendix A, triangular distributions AIRFR Air release fraction B 2 S - Triangular NUREG/CR-6755, Appendix A distribution INGE1 Direct ingestion rate B 2 D g/h or 1.34E-06 NUREG/CR-5512, Vol. 3, Section 1/h 5.2.3 1.1E-04 m2/h / 82.03 m2 Page 6-167
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-J, RESRAD-BUILD Parameters for Rancho Seco Structural Surfaces Sensitivity Analysis Parameter Parameter Basis for Parameter Name Description Class1 Priority2 Treatment3 Units Value Selection RMVFR Removable fraction P, B 1 S - Triangular NUREG/CR-6755, Section 3.5 distribution RF0 Source lifetime (also time P, B 2 S d Triangular NUREG/CR-6755, Section 3.6 for source removal) distribution RRF Radon release fraction P, B 3 D - 0 Radon exposure is not regulated by the NRC RNUCACT Radionuclide P 2 D Act/m 1 Allows for proportional DCGL concentration/activity Act/m2 calculation Act/g NREGI0 Number of regions in P 3 D - Not used A volume source is not used in volume source this dose model FCONT0 Contaminated region P 3 D - Not used A volume source is not used in (volume source) this dose model THICK0 Source region thickness P 2 S cm Not used A volume source is not used in (volume source) this dose model DENSI0 Source density (volume P 1 S g/cm3 Not used A volume source is not used in source) this dose model EROS0 Source erosion rate P, B 2 S cm/d Not used A volume source is not used in (volume source) this dose model POROS0 Source porosity P 2 S - Not used A volume source is not used in this dose model EFDIF0 Radon effective diffusion P 3 D m2/sec 0 Radon exposure is not regulated coefficient by the NRC EMANA0 Radon emanation P 3 D - 0 Radon exposure is not regulated fraction by the NRC MTLS Source material D - Not used A volume source is not used in this dose model Source 4 - East wall SLVL Source room (also P 3 D - 1 This dose model contains only primary room) one room STYPE Source type P 3 D - Area NUREG/CR-5512 SDIR Source direction P 3 D - x NUREG/CR-5512 Page 6-168
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-J, RESRAD-BUILD Parameters for Rancho Seco Structural Surfaces Sensitivity Analysis Parameter Parameter Basis for Parameter Name Description Class1 Priority2 Treatment3 Units Value Selection SX Source location P 3 D m 6, 3, 1.85 X distance is the square root of the most likely room area, Y distance is half of the square root of the most likely room area and Z distance is half of the most likely room height from NUREG/CR-6755, Appendix A, triangular distributions SAREA Source area P 2 D m/m2 22.2 Square root of the most likely room area times the most likely room height from NUREG/CR-6755, Appendix A, triangular distributions AIRFR Air release fraction B 2 S - Triangular NUREG/CR-6755, Appendix A distribution INGE1 Direct ingestion rate B 2 D g/h or 1.34E-06 NUREG/CR-5512, Vol. 3, Section 1/h 5.2.3 1.1E-04 m2/h / 82.03 m2 RMVFR Removable fraction P, B 1 S - Triangular NUREG/CR-6755, Section 3.5 distribution RF0 Source lifetime (also time P, B 2 S d Triangular NUREG/CR-6755, Section 3.6 for source removal) distribution RRF Radon release fraction P, B 3 D - 0 Radon exposure is not regulated by the NRC RNUCACT Radionuclide P 2 D Act/m 1 Allows for proportional DCGL concentration/activity Act/m2 calculation Act/g NREGI0 Number of regions in P 3 D - Not used A volume source is not used in volume source this dose model FCONT0 Contaminated region P 3 D - Not used A volume source is not used in (volume source) this dose model THICK0 Source region thickness P 2 S cm Not used A volume source is not used in (volume source) this dose model Page 6-169
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-J, RESRAD-BUILD Parameters for Rancho Seco Structural Surfaces Sensitivity Analysis Parameter Parameter Basis for Parameter Name Description Class1 Priority2 Treatment3 Units Value Selection DENSI0 Source density (volume P 1 S g/cm3 Not used A volume source is not used in source) this dose model EROS0 Source erosion rate P, B 2 S cm/d Not used A volume source is not used in (volume source) this dose model POROS0 Source porosity P 2 S - Not used A volume source is not used in this dose model EFDIF0 Radon effective diffusion P 3 D m2/sec 0 Radon exposure is not regulated coefficient by the NRC EMANA0 Radon emanation P 3 D - 0 Radon exposure is not regulated fraction by the NRC MTLS Source material D - Not used A volume source is not used in this dose model Source 5 - South wall SLVL Source room (also P 3 D - 1 This dose model contains only primary room) one room STYPE Source type P 3 D - Area NUREG/CR-5512 SDIR Source direction P 3 D - y NUREG/CR-5512 SX Source location P 3 D m 3, 0, 1.85 X and Y distances are half of the square root of the most likely room area and Z distance is half of the most likely room height from NUREG/CR-6755, Appendix A, triangular distributions SAREA Source area P 2 D m/m2 22.2 Square root of the most likely room area times the most likely room height from NUREG/CR-6755, Appendix A, triangular distributions AIRFR Air release fraction B 2 S - Triangular NUREG/CR-6755, Appendix A distribution INGE1 Direct ingestion rate B 2 D g/h or 1.34E-06 NUREG/CR-5512, Vol. 3, Section 1/h 5.2.3 1.1E-04 m2/h / 82.03 m2 Page 6-170
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-J, RESRAD-BUILD Parameters for Rancho Seco Structural Surfaces Sensitivity Analysis Parameter Parameter Basis for Parameter Name Description Class1 Priority2 Treatment3 Units Value Selection RMVFR Removable fraction P, B 1 S - Triangular NUREG/CR-6755, Section 3.5 distribution RF0 Source lifetime (also time P, B 2 S d Triangular NUREG/CR-6755, Section 3.6 for source removal) distribution RRF Radon release fraction P, B 3 D - 0 Radon exposure is not regulated by the NRC RNUCACT Radionuclide P 2 D Act/m 1 Allows for proportional DCGL concentration/activity Act/m2 calculation Act/g NREGI0 Number of regions in P 3 D - Not used A volume source is not used in volume source this dose model FCONT0 Contaminated region P 3 D - Not used A volume source is not used in (volume source) this dose model THICK0 Source region thickness P 2 S cm Not used A volume source is not used in (volume source) this dose model DENSI0 Source density (volume P 1 S g/cm3 Not used A volume source is not used in source) this dose model EROS0 Source erosion rate P, B 2 S cm/d Not used A volume source is not used in (volume source) this dose model POROS0 Source porosity P 2 S - Not used A volume source is not used in this dose model EFDIF0 Radon effective diffusion P 3 D m2/sec 0 Radon exposure is not regulated coefficient by the NRC EMANA0 Radon emanation P 3 D - 0 Radon exposure is not regulated fraction by the NRC MTLS Source material D - Not used A volume source is not used in this dose model SHIELDING PARAMETERS DSTH Shielding thickness P, B 2 S cm 0 Shielding is not used in this dose model DSDEN Shielding density P 1 S g/cm3 0 Shielding is not used in this dose model Page 6-171
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-J, RESRAD-BUILD Parameters for Rancho Seco Structural Surfaces Sensitivity Analysis Parameter Parameter Basis for Parameter Name Description Class1 Priority2 Treatment3 Units Value Selection MTLC Shielding material P 3 D - None Shielding is not used in this dose model TRITIUM MODEL PARAMETERS DRYTHICK Dry zone thickness P 3 cm Not Used This parameter is not used for a surface source H3THICK Wet + dry zone thickness P 2 S cm Not Used This parameter is not used for a surface source H3VOLFRACT Volumetric water content P 2 S - Not Used This parameter is not used for a surface source H3RMVF Water fraction available P 2 S - Not Used This parameter is not used for a for vaporization surface source HUMIDITY Humidity P, B 2 S g/m3 Not Used This parameter is not used for a surface source 1
Parameter Classification: P = Physical; B = Behavioral; M = Metabolic 2
1 = high priority parameter, 2 = medium priority parameter, 3 = low priority parameter 3
D = Deterministic treatment, S = Stochastic treatment Page 6-172
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-K, Sensitivity Analysis Distribution Parameters and Sensitive Parameter Results Distributions Statistical Parameters2 25% or Assigned 1
Parameter Priority Distribution PRCC3 75% Parameter 1 2 3 4 Quartile Value Resuspension rate 1 Loguniform 2.5E-11 1.3E-05 -0.30 25% 4.15E-09 Removable fraction 1 Triangular 0.0 1.0 0.1 0.94 75% 0.552 Deposition velocity 2 Loguniform 2.7E-06 2.7E-03 0.27 75% 4.78E-04 Room height 2 Triangular 2.4 9.1 3.7 -0.18 25% 3.89 Room area 2 Triangular 3 900 36 -0.40 25% 137 Air exchange rate 2 Truncated lognormal-n 0.4187 0.88 0.001 0.999 -0.29 25% 0.835 Receptor breathing/inhalation rate 2 Triangular 12 46 33.6 0.18 75% 35.7 Indirect ingestion rate 2 Loguniform 2.8E-05 2.9E-04 0.11 75% 1.61E-04 Air release fraction 2 Triangular 1E-06 1 0.07 0.21 75% 0.517 Source lifetime 2 Triangular 1,000 100,000 10,000 0.21 75% 52800 Notes:
1 1 = high priority parameter, 2 = medium priority parameter 2
Distributions Statistical Parameter Loguniform: 1 = minimum, 2 = maximum Triangular: 1 = minimum, 2 = maximum, 3 = most likely Truncated lognormal-n: 1 = underlying mean value, 2 = underlying standard deviation, 3 = lower quantile, 4 = upper quantile 3
PRCC = Partial ranked correlation coefficient for Time 1 Page 6-173
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-K, Sensitivity Analysis Distribution Parameters and Sensitive Parameter Results This page intentionally left blank Page 6-174
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-L, Radionuclide Specific RESRAD-BUILD Sensitive Parameters Radionuclide H-3 C-14 Na-22 Fe-55 Ni-59 Co-60 Rank Parameter PRCC Parameter PRCC Parameter PRCC Parameter PRCC Parameter PRCC Parameter PRCC 1 RMVFR(S1) 0.94 RMVFR(S1) 0.93 RMVFR(S1) 0.92 RMVFR(S1) 0.94 RMVFR(S1) 0.93 RMVFR(S1) 0.93 2 RMVFR(S3) 0.87 RMVFR(S3) 0.85 RMVFR(S3) 0.86 RMVFR(S3) 0.87 RMVFR(S3) 0.84 RMVFR(S3) 0.87 3 RMVFR(S2) 0.87 RMVFR(S5) 0.85 RMVFR(S5) 0.85 RMVFR(S2) 0.87 RMVFR(S5) 0.84 RMVFR(S5) 0.86 4 RMVFR(S5) 0.86 RMVFR(S2) 0.85 RMVFR(S2) 0.84 RMVFR(S5) 0.86 RMVFR(S2) 0.84 RMVFR(S2) 0.86 5 RMVFR(S4) 0.86 RMVFR(S4) 0.85 RMVFR(S4) 0.84 RMVFR(S4) 0.86 RMVFR(S4) 0.83 RMVFR(S4) 0.85 6 UD 0.13 RF0(S1) 0.34 AREA -0.11 AREA -0.23 AREA -0.19 7 RF0(S4) 0.16 BRTRATE 0.12 RF0(S1) 0.17 8 RF0(S2) 0.14 H -0.11 9 AREA -0.11 10 RF0(S3) 0.11 11 12 13 14 15 Radionuclide Ni-63 Sr-90 Nb-94 Tc-99 Ag-108m Sb-125 Rank Parameter PRCC Parameter PRCC Parameter PRCC Parameter PRCC Parameter PRCC Parameter PRCC 1 RMVFR(S1) 0.93 RMVFR(S1) 0.94 RMVFR(S1) 0.77 RMVFR(S1) 0.93 RMVFR(S1) 0.80 RMVFR(S1) 0.93 2 RMVFR(S3) 0.86 RMVFR(S3) 0.87 RMVFR(S5) 0.65 RMVFR(S3) 0.85 RMVFR(S5) 0.69 RMVFR(S3) 0.87 3 RMVFR(S2) 0.85 RMVFR(S2) 0.86 RMVFR(S3) 0.65 RMVFR(S5) 0.85 RMVFR(S3) 0.69 RMVFR(S5) 0.86 4 RMVFR(S5) 0.85 RMVFR(S5) 0.86 RMVFR(S2) 0.64 RMVFR(S2) 0.84 RMVFR(S2) 0.67 RMVFR(S2) 0.86 5 RMVFR(S4) 0.85 RMVFR(S4) 0.86 RMVFR(S4) 0.61 RMVFR(S4) 0.84 RMVFR(S4) 0.65 RMVFR(S4) 0.85 6 AREA -0.21 AREA -0.17 AREA -0.37 AREA -0.16 AREA -0.34 RF0(S1) 0.23 7 BRTRATE 0.11 DKSUS -0.30 UD 0.12 DKSUS -0.29 AREA -0.14 8 LAMBDAT -0.29 UD 0.27 RF0(S4) 0.13 9 UD 0.27 LAMBDAT -0.24 RF0(S2) 0.11 10 AIRFR(S4) 0.21 AIRFR(S4) 0.21 11 AIRFR(S5) 0.20 RF0(S1) 0.20 12 H -0.17 AIRFR(S5) 0.19 13 RF0(S1) 0.15 H -0.18 14 BRTRATE 0.15 BRTRATE 0.12 15 Page 6-175
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-L, Radionuclide Specific RESRAD-BUILD Sensitive Parameters Radionuclide Cs-134 Cs-137 Pm-147 Eu-152 Eu-154 Eu-155 Rank Parameter PRCC Parameter PRCC Parameter PRCC Parameter PRCC Parameter PRCC Parameter PRCC 1 RMVFR(S1) 0.94 RMVFR(S1) 0.94 RMVFR(S1) 0.92 RMVFR(S1) 0.88 RMVFR(S1) 0.91 RMVFR(S1) 0.93 2 RMVFR(S3) 0.87 RMVFR(S3) 0.87 RMVFR(S3) 0.83 RMVFR(S3) 0.79 RMVFR(S3) 0.83 RMVFR(S3) 0.85 3 RMVFR(S5) 0.87 RMVFR(S5) 0.86 RMVFR(S2) 0.83 RMVFR(S5) 0.78 RMVFR(S5) 0.82 RMVFR(S2) 0.84 4 RMVFR(S2) 0.87 RMVFR(S2) 0.86 RMVFR(S5) 0.81 RMVFR(S2) 0.77 RMVFR(S2) 0.82 RMVFR(S5) 0.84 5 RMVFR(S4) 0.86 RMVFR(S4) 0.86 RMVFR(S4) 0.81 RMVFR(S4) 0.76 RMVFR(S4) 0.81 RMVFR(S4) 0.84 6 AREA -0.37 AREA -0.40 AREA -0.39 AREA -0.34 7 LAMBDAT -0.18 LAMBDAT -0.23 LAMBDAT -0.20 BRTRATE 0.16 8 BRTRATE 0.18 RF0(S1) 0.23 RF0(S1) 0.18 LAMBDAT -0.15 9 AIRFR(S5) 0.12 AIRFR(S5) 0.18 BRTRATE 0.16 AIRFR(S4) 0.12 10 AIRFR(S4) 0.12 H -0.17 AIRFR(S4) 0.15 11 AIRFR(S4) 0.17 AIRFR(S5) 0.15 12 UD 0.16 H -0.15 13 BRTRATE 0.15 UD 0.11 14 DKSUS -0.12 15 RF0(S2) 0.11 16 17 Page 6-176
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-L, Radionuclide Specific RESRAD-BUILD Sensitive Parameters Radionuclide Np-237 Pu-238 Pu-239 Pu-240 Pu-241 Am-241 Rank Parameter PRCC Parameter PRCC Parameter PRCC Parameter PRCC Parameter PRCC Parameter PRCC 1 RMVFR(S1) 0.84 RMVFR(S1) 0.85 RMVFR(S1) 0.79 RMVFR(S1) 0.80 RMVFR(S1) 0.86 RMVFR(S1) 0.82 2 RMVFR(S4) 0.69 RMVFR(S2) 0.71 RMVFR(S2) 0.64 RMVFR(S2) 0.64 RMVFR(S2) 0.74 RMVFR(S4) 0.67 3 RMVFR(S2) 0.69 RMVFR(S4) 0.71 RMVFR(S5) 0.62 RMVFR(S3) 0.63 RMVFR(S4) 0.73 RMVFR(S2) 0.67 4 RMVFR(S3) 0.68 RMVFR(S3) 0.70 RMVFR(S3) 0.62 RMVFR(S5) 0.63 RMVFR(S3) 0.73 RMVFR(S3) 0.67 5 RMVFR(S5) 0.68 RMVFR(S5) 0.70 RMVFR(S4) 0.62 RMVFR(S4) 0.63 RMVFR(S5) 0.72 RMVFR(S5) 0.65 6 AREA -0.55 AREA -0.53 AREA -0.47 AREA -0.48 AREA -0.53 AREA -0.51 7 LAMBDAT -0.42 LAMBDAT -0.39 LAMBDAT -0.37 LAMBDAT -0.38 LAMBDAT -0.37 LAMBDAT -0.39 8 BRTRATE 0.27 BRTRATE 0.26 BRTRATE 0.24 BRTRATE 0.24 BRTRATE 0.26 BRTRATE 0.26 9 AIRFR(S5) 0.19 AIRFR(S5) 0.18 DKSUS -0.20 DKSUS AIRFR(S5) 0.17 AIRFR(S5) 0.17 10 H -0.16 H -0.15 AIRFR(S5) 0.19 AIRFR(S5) 0.19 AIRFR(S4) 0.13 H -0.17 11 AIRFR(S4) 0.15 AIRFR(S4) 0.14 UD 0.18 H -0.18 H -0.13 AIRFR(S4) 0.14 12 RF0(S4) -0.12 RF0(S4) -0.12 H -0.18 UD 0.17 RF0(S4) -0.13 UD 0.12 13 INGE2 0.11 AIRFR(S4) 0.16 AIRFR(S4) 0.16 INGE2 0.11 RF0(S4) -0.11 14 RF0(S4) -0.11 RF0(S4) -0.11 Radionuclide Pu-242 Cm-244 Rank Parameter PRCC Parameter PRCC Parameter PRCC Parameter PRCC Parameter PRCC Parameter PRCC 1 RMVFR(S1) 0.79 RMVFR(S1) 0.86 2 RMVFR(S2) 0.63 RMVFR(S2) 0.74 3 RMVFR(S5) 0.62 RMVFR(S4) 0.73 4 RMVFR(S3) 0.62 RMVFR(S3) 0.72 5 RMVFR(S4) 0.62 RMVFR(S5) 0.72 6 AREA -0.47 AREA -0.53 7 LAMBDAT -0.38 LAMBDAT -0.37 8 BRTRATE 0.23 BRTRATE 0.26 9 DKSUS -0.20 AIRFR(S5) 0.17 10 AIRFR(S5) 0.19 AIRFR(S4) 0.13 11 UD 0.18 RF0(S4) -0.12 12 H -0.18 H -0.12 13 AIRFR(S4) 0.16 INGE2 0.11 14 RF0(S4) -0.11 15 Page 6-177
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-L, Radionuclide Specific RESRAD-BUILD Sensitive Parameters Parameter Code Explanation UD-- Deposition velocity AIRFR-- Air release fraction AREA-- Room area BRTRATE-- Receptor breathing/inhalation rate DKSUS-- Resuspension rate H-- Room height INGE2-- Indirect ingestion rate LAMBDAT-- Air exchange rate RF0-- Source lifetime (also time for source removal)
RMVFR-- Removable fraction (S#) Source number Page 6-178
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-M, Parameters for Rancho Seco Structural Surfaces DCGL Derivation Parameter Parameter Basis for Parameter Name Description Class1 Priority2 Treatment3 Units Value Selection TIME PARAMETERS TTIME Exposure duration B 3 D d 365.25 NUREG/CR-5512, Vol. 1 FTIN Indoor fraction B 2 D - 0.267 NUREG/CR-5512, Vol. 3 Section 5.2.2.4 to match the 97.4 d/yr time in the building. This is the time the average member of the group spends in the building.
NTIME Number of times for P 3 D - 2 RESRAD-BUILD current Physical calculation priority 3 default acceptable for this calculation DOSE_TIME Time P 3 D yr 1 NUREG/CR-5512, Vol. 3 Section 5.2.2.4 POINT Maximum time P 3 D - 1 Argonne recommended value for integration points probabilistic calculations BUILDING PARAMETERS NROOM Number of rooms P 3 D - 1 NUREG/CR-5512 building occupancy scenario assumes only one contaminated room UD Deposition velocity P 2 S or D m/s 4.78E-04 The result of sensitivity analysis DKSUS Resuspension rate P, B 1 S or D s-1 1.33E-09 Calculated from the NUREG-1720 recommended DandD resuspension factor of 9.6E-07 m-1, deposition velocity, air exchange rate and room height (see Section 6.2)
H Room height P 2 S m 3.89 Result of sensitivity analysis AREA Room area P 2 S m2 137 Result of sensitivity analysis LAMBDAT Air exchange rate B 2 S or D 1/h 0.835 The result of sensitivity analysis (building);
LINPUT (room)
Page 6-179
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-M, Parameters for Rancho Seco Structural Surfaces DCGL Derivation Parameter Parameter Basis for Parameter Name Description Class1 Priority2 Treatment3 Units Value Selection Q12 and Q21; Flow rate between rooms B 3 D m3/h 0 This dose model contains only Q23 and Q32 one receptor room Q10 and Q01; Outdoor inflow and B, P 3 D m3/h Not used Outdoor inflow is calculated from Q20 and Q02; outflow room volume and air exchange Q30 and Q03 rate RECEPTOR PARAMETERS ND Number of receptors B 3 D - 1 This dose model contains only one receptor DLVL Receptor room B 3 D - 1 This dose model contains only one receptor room DX Receptor location (x, y, B 3 D m 5.85, 5.85, 1 Center of the rooms floor z)
TWGHT Receptor time fraction B 3 D - 1 NUREG/CR-5512, Vol. 3 BRTRATE Receptor M, B 2 S or D m3/d Triangular NUREG/CR-6755, Appendix A or breathing/inhalation distribution or the result of sensitivity analysis rate 35.7 INGE2 Indirect ingestion rate B 2 S m2/h Loguniform NUREG/CR-6755, Appendix A or distribution or the result of sensitivity analysis 1.61E-04 SOURCE PARAMETERS NS Number of sources P 3 D - 5 Assumes contamination on four walls plus the floor Source 1 - Floor SLVL Source room (also P 3 D - 1 This dose model contains only primary room) one room STYPE Source type P 3 D - Area NUREG/CR-5512 SDIR Source direction P 3 D - z NUREG/CR-5512 SX Source location (x, y, z) P 3 D m 5.85, 5.85, 0 X and Y distances are half of the square root of the room area derived from sensitivity analysis SAREA Source area P 2 D m2 137 Room area from derived from sensitivity analysis Page 6-180
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-M, Parameters for Rancho Seco Structural Surfaces DCGL Derivation Parameter Parameter Basis for Parameter Name Description Class1 Priority2 Treatment3 Units Value Selection AIRFR Air release fraction B 2 S or D - Triangular NUREG/CR-6755, Appendix A or distribution or the result of sensitivity analysis 0.517 INGE1 Direct ingestion rate B 2 D g/h or 3.45E-07 Calculated from the default 1/h ingestion rate of 1.1E-04 m2/h in the NUREG/CR-5512 industrial worker building occupancy scenario. 3.45E-07 h-1 is 1.1E-04 m2/h divided by the total contaminated area of 319 m2.
RMVFR Removable fraction P, B 1 D - 0.1 10% of the contamination is removable (NUREG/CR-5512 industrial worker building occupancy scenario default).
The default parameter value for the loose fraction for the building occupancy scenario is 0.1 (Table C7.1, NUREG/CR-1727).
RF0 Source lifetime (also time P, B 2 S or D d Triangular NUREG/CR-6755, Section 3.6 or for source removal) distribution or the result of sensitivity analysis 52800 RRF Radon release fraction P, B 3 D - 0 Radon exposure is not regulated by the NRC RNUCACT Radionuclide P 2 D dpm/m2 100 Calculates a dose conversion concentration/activity factor in units of mrem/yr per dpm/100 cm2 NREGI0 Number of regions in P 3 D - Not used A volume source is not used in volume source this dose model FCONT0 Contaminated region P 3 D - Not used A volume source is not used in (volume source) this dose model THICK0 Source region thickness P 2 S cm Not used A volume source is not used in (volume source) this dose model Page 6-181
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-M, Parameters for Rancho Seco Structural Surfaces DCGL Derivation Parameter Parameter Basis for Parameter Name Description Class1 Priority2 Treatment3 Units Value Selection DENSI0 Source density (volume P 1 S g/cm3 Not used A volume source is not used in source) this dose model EROS0 Source erosion rate P, B 2 S cm/d Not used A volume source is not used in (volume source) this dose model POROS0 Source porosity P 2 S - Not used A volume source is not used in this dose model EFDIF0 Radon effective diffusion P 3 D m2/sec 0 Radon exposure is not regulated coefficient by the NRC EMANA0 Radon emanation P 3 D - 0 Radon exposure is not regulated fraction by the NRC MTLS Source material D - Not used A volume source is not used in this dose model Source 2 - West wall SLVL Source room (also P 3 D - 1 This dose model contains only primary room) one room STYPE Source type P 3 D - Area NUREG/CR-5512 SDIR Source direction P 3 D - x NUREG/CR-5512 SX Source location (x, y, z) P 3 D m 0, 5.85, 1.945 Y distance is half of the square root of the room area and z distance is half of the room height derived from sensitivity analysis SAREA Source area P 2 D m/m2 45.5 Square root of the room area times the room height derived from sensitivity analysis AIRFR Air release fraction B 2 S or D - Triangular NUREG/CR-6755, Appendix A or distribution or the result of sensitivity analysis 0.517 Page 6-182
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-M, Parameters for Rancho Seco Structural Surfaces DCGL Derivation Parameter Parameter Basis for Parameter Name Description Class1 Priority2 Treatment3 Units Value Selection INGE1 Direct ingestion rate B 2 D g/h or 3.45E-07 Calculated from the default 1/h ingestion rate of 1.1E-04 m2/h in the NUREG/CR-5512 industrial worker building occupancy scenario. 3.45E-07 h-1 is 1.1E-04 m2/h divided by the total contaminated area of 319 m2.
RMVFR Removable fraction P, B 1 D - 0.1 10% of the contamination is removable (NUREG/CR-5512 industrial worker building occupancy scenario default).
The default parameter value for the loose fraction for the building occupancy scenario is 0.1 (Table C7.1, NUREG/CR-1727).
RF0 Source lifetime (also time P, B 2 S or D d Triangular NUREG/CR-6755, Section 3.6 or for source removal) distribution or the result of sensitivity analysis 52800 RRF Radon release fraction P, B 3 D - 0 Radon exposure is not regulated by the NRC RNUCACT Radionuclide P 2 D dpm/m2 100 Calculates a dose conversion concentration/activity factor in units of mrem/yr per dpm/100 cm2 NREGI0 Number of regions in P 3 D - Not used A volume source is not used in volume source this dose model FCONT0 Contaminated region P 3 D - Not used A volume source is not used in (volume source) this dose model THICK0 Source region thickness P 2 S cm Not used A volume source is not used in (volume source) this dose model DENSI0 Source density (volume P 1 S g/cm3 Not used A volume source is not used in source) this dose model Page 6-183
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-M, Parameters for Rancho Seco Structural Surfaces DCGL Derivation Parameter Parameter Basis for Parameter Name Description Class1 Priority2 Treatment3 Units Value Selection EROS0 Source erosion rate P, B 2 S cm/d Not used A volume source is not used in (volume source) this dose model POROS0 Source porosity P 2 S - Not used A volume source is not used in this dose model EFDIF0 Radon effective diffusion P 3 D m2/sec 0 Radon exposure is not regulated coefficient by the NRC EMANA0 Radon emanation P 3 D - 0 Radon exposure is not regulated fraction by the NRC MTLS Source material D - Not used A volume source is not used in this dose model Source 3 - North wall SLVL Source room (also P 3 D - 1 This dose model contains only primary room) one room STYPE Source type P 3 D - Area NUREG/CR-5512 SDIR Source direction P 3 D - y NUREG/CR-5512 SX Source location (x, y, z) P 3 D m 5.85, 11.7, X distance is half of the square 1.945 root of the room area, Y distance is the square root of the room area and Z distance is half of the room height derived from sensitivity analysis SAREA Source area P 2 D m/m2 45.5 Square root of the room area times the room height derived from sensitivity analysis AIRFR Air release fraction B 2 S or D - Triangular NUREG/CR-6755, Appendix A or distribution or the result of sensitivity analysis 0.517 Page 6-184
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-M, Parameters for Rancho Seco Structural Surfaces DCGL Derivation Parameter Parameter Basis for Parameter Name Description Class1 Priority2 Treatment3 Units Value Selection INGE1 Direct ingestion rate B 2 D g/h or 3.45E-07 Calculated from the default 1/h ingestion rate of 1.1E-04 m2/h in the NUREG/CR-5512 industrial worker building occupancy scenario. 3.45E-07 h-1 is 1.1E-04 m2/h divided by the total contaminated area of 319 m2.
RMVFR Removable fraction P, B 1 D - 0.1 10% of the contamination is removable (NUREG/CR-5512 industrial worker building occupancy scenario default).
The default parameter value for the loose fraction for the building occupancy scenario is 0.1 (Table C7.1, NUREG/CR-1727).
RF0 Source lifetime (also time P, B 2 S or D d Triangular NUREG/CR-6755, Section 3.6 or for source removal) distribution or the result of sensitivity analysis 52800 RRF Radon release fraction P, B 3 D - 0 Radon exposure is not regulated by the NRC RNUCACT Radionuclide P 2 D dpm/m2 100 Calculates a dose conversion concentration/activity factor in units of mrem/yr per dpm/100 cm2 NREGI0 Number of regions in P 3 D - Not used A volume source is not used in volume source this dose model FCONT0 Contaminated region P 3 D - Not used A volume source is not used in (volume source) this dose model THICK0 Source region thickness P 2 S cm Not used A volume source is not used in (volume source) this dose model DENSI0 Source density (volume P 1 S g/cm3 Not used A volume source is not used in source) this dose model Page 6-185
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-M, Parameters for Rancho Seco Structural Surfaces DCGL Derivation Parameter Parameter Basis for Parameter Name Description Class1 Priority2 Treatment3 Units Value Selection EROS0 Source erosion rate P, B 2 S cm/d Not used A volume source is not used in (volume source) this dose model POROS0 Source porosity P 2 S - Not used A volume source is not used in this dose model EFDIF0 Radon effective diffusion P 3 D m2/sec 0 Radon exposure is not regulated coefficient by the NRC EMANA0 Radon emanation P 3 D - 0 Radon exposure is not regulated fraction by the NRC MTLS Source material D - Not used A volume source is not used in this dose model Source 4 - East wall SLVL Source room (also P 3 D - 1 This dose model contains only primary room) one room STYPE Source type P 3 D - Area NUREG/CR-5512 SDIR Source direction P 3 D - x NUREG/CR-5512 SX Source location P 3 D m 11.7, 5.85, X distance is the square root of 1.945 the room area, Y distance is half of the square root of the room area and Z distance is half of the room height derived from sensitivity analysis SAREA Source area P 2 D m/m2 45.5 Square root of the room area times the room height derived from sensitivity analysis AIRFR Air release fraction B 2 S or D - Triangular NUREG/CR-6755, Appendix A or distribution or the result of sensitivity analysis 0.517 Page 6-186
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-M, Parameters for Rancho Seco Structural Surfaces DCGL Derivation Parameter Parameter Basis for Parameter Name Description Class1 Priority2 Treatment3 Units Value Selection INGE1 Direct ingestion rate B 2 D g/h or 3.45E-07 Calculated from the default 1/h ingestion rate of 1.1E-04 m2/h in the NUREG/CR-5512 industrial worker building occupancy scenario. 3.45E-07 h-1 is 1.1E-04 m2/h divided by the total contaminated area of 319 m2.
RMVFR Removable fraction P, B 1 D - 0.1 10% of the contamination is removable (NUREG/CR-5512 industrial worker building occupancy scenario default).
The default parameter value for the loose fraction for the building occupancy scenario is 0.1 (Table C7.1, NUREG/CR-1727).
RF0 Source lifetime (also time P, B 2 S or D d Triangular NUREG/CR-6755, Section 3.6 or for source removal) distribution or the result of sensitivity analysis 52800 RRF Radon release fraction P, B 3 D - 0 Radon exposure is not regulated by the NRC RNUCACT Radionuclide P 2 D dpm/m2 100 Calculates a dose conversion concentration/activity factor in units of mrem/yr per dpm/100 cm2 NREGI0 Number of regions in P 3 D - Not used A volume source is not used in volume source this dose model FCONT0 Contaminated region P 3 D - Not used A volume source is not used in (volume source) this dose model THICK0 Source region thickness P 2 S cm Not used A volume source is not used in (volume source) this dose model DENSI0 Source density (volume P 1 S g/cm3 Not used A volume source is not used in source) this dose model Page 6-187
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-M, Parameters for Rancho Seco Structural Surfaces DCGL Derivation Parameter Parameter Basis for Parameter Name Description Class1 Priority2 Treatment3 Units Value Selection EROS0 Source erosion rate P, B 2 S cm/d Not used A volume source is not used in (volume source) this dose model POROS0 Source porosity P 2 S - Not used A volume source is not used in this dose model EFDIF0 Radon effective diffusion P 3 D m2/sec 0 Radon exposure is not regulated coefficient by the NRC EMANA0 Radon emanation P 3 D - 0 Radon exposure is not regulated fraction by the NRC MTLS Source material D - Not used A volume source is not used in this dose model Source 5 - South wall SLVL Source room (also P 3 D - 1 This dose model contains only primary room) one room STYPE Source type P 3 D - Area NUREG/CR-5512 SDIR Source direction P 3 D - y NUREG/CR-5512 SX Source location P 3 D m 5.85, 0, 1.945 X and Y distances are half of the square root of the room area and Z distance is half of the room height derived from sensitivity analysis SAREA Source area P 2 D m/m2 45.5 Square root of the room area times the room height derived from sensitivity analysis AIRFR Air release fraction B 2 S or D - Triangular NUREG/CR-6755, Appendix A or distribution or the result of sensitivity analysis 0.517 Page 6-188
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-M, Parameters for Rancho Seco Structural Surfaces DCGL Derivation Parameter Parameter Basis for Parameter Name Description Class1 Priority2 Treatment3 Units Value Selection INGE1 Direct ingestion rate B 2 D g/h or 3.45E-07 Calculated from the default 1/h ingestion rate of 1.1E-04 m2/h in the NUREG/CR-5512 industrial worker building occupancy scenario. 3.45E-07 h-1 is 1.1E-04 m2/h divided by the total contaminated area of 319 m2.
RMVFR Removable fraction P, B 1 D - 0.1 10% of the contamination is removable (NUREG/CR-5512 industrial worker building occupancy scenario default).
The default parameter value for the loose fraction for the building occupancy scenario is 0.1 (Table C7.1, NUREG/CR-1727).
RF0 Source lifetime (also time P, B 2 S or D d Triangular NUREG/CR-6755, Section 3.6 or for source removal) distribution or the result of sensitivity analysis 52800 RRF Radon release fraction P, B 3 D - 0 Radon exposure is not regulated by the NRC RNUCACT Radionuclide P 2 D dpm/m2 100 Calculates a dose conversion concentration/activity factor in units of mrem/yr per dpm/100 cm2 NREGI0 Number of regions in P 3 D - Not used A volume source is not used in volume source this dose model FCONT0 Contaminated region P 3 D - Not used A volume source is not used in (volume source) this dose model THICK0 Source region thickness P 2 S cm Not used A volume source is not used in (volume source) this dose model DENSI0 Source density (volume P 1 S g/cm3 Not used A volume source is not used in source) this dose model Page 6-189
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-M, Parameters for Rancho Seco Structural Surfaces DCGL Derivation Parameter Parameter Basis for Parameter Name Description Class1 Priority2 Treatment3 Units Value Selection EROS0 Source erosion rate P, B 2 S cm/d Not used A volume source is not used in (volume source) this dose model POROS0 Source porosity P 2 S - Not used A volume source is not used in this dose model EFDIF0 Radon effective diffusion P 3 D m2/sec 0 Radon exposure is not regulated coefficient by the NRC EMANA0 Radon emanation P 3 D - 0 Radon exposure is not regulated fraction by the NRC MTLS Source material D - Not used A volume source is not used in this dose model SHIELDING PARAMETERS DSTH Shielding thickness P, B 2 S cm 0 Shielding is not used in this dose model DSDEN Shielding density P 1 S g/cm3 0 Shielding is not used in this dose model MTLC Shielding material P 3 D - None Shielding is not used in this dose model TRITIUM MODEL PARAMETERS DRYTHICK Dry zone thickness P 3 cm Not Used This parameter is not used for a surface source H3THICK Wet + dry zone thickness P 2 S cm Not Used This parameter is not used for a surface source H3VOLFRACT Volumetric water content P 2 S - Not Used This parameter is not used for a surface source H3RMVF Water fraction available P 2 S - Not Used This parameter is not used for a for vaporization surface source HUMIDITY Humidity P, B 2 S g/m3 Not Used This parameter is not used for a surface source 1
Parameter Classification: P = Physical; B = Behavioral; M = Metabolic 2
1 = high priority parameter, 2 = medium priority parameter, 3 = low priority parameter 3
D = Deterministic treatment, S = Stochastic treatment Page 6-190
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-N, Parameters for Rancho Seco Bulk Material Sensitivity Analysis Parameter Parameter Basis for Parameter Name Description Class1 Priority2 Treatment3 Units Value Selection TIME PARAMETERS TTIME Exposure duration B 3 D d 365.25 NUREG/CR-5512, Vol. 1 FTIN Indoor fraction B 2 D - 0.267 NUREG/CR-5512, Vol. 3 Section 5.2.2.4 to match the 97.4 d/yr time in the building. This is the time the average member of the group spends in the building.
NTIME Number of times for P 3 D - 2 RESRAD-BUILD current Physical calculation priority 3 default value acceptable for this evaluation DOSE_TIME Time P 3 D yr 1 NUREG/CR-5512, Vol. 3 Section 5.2.2.4 POINT Maximum time P 3 D - 1 Argonne National Laboratory integration points recommended value for probabilistic calculations BUILDING PARAMETERS NROOM Number of rooms P 3 D - 1 NUREG/CR-5512 building occupancy scenario assumes only one contaminated room UD Deposition velocity P 2 S m/s Loguniform NUREG/CR-6755, Section 3.3 distribution UD Deposition velocity P 2 S m/s 0 ANL-EAD-03-01, Appendix G, (H-3 only) Section G.3.2 DKSUS Resuspension rate P, B 1 D s-1 1.33E-09 Calculated from the NUREG-1720 recommended DandD resuspension factor of 9.6E-07 m-1, deposition velocity, air exchange rate and room height (see Section 6.2 of DTBD 004)
H Room height P 2 D m 3.89 Result of DTBD-04-004 sensitivity analysis Page 6-191
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-N, Parameters for Rancho Seco Bulk Material Sensitivity Analysis Parameter Parameter Basis for Parameter Name Description Class1 Priority2 Treatment3 Units Value Selection AREA Room area P 2 D m2 137 Result of DTBD-04-004 sensitivity analysis LAMBDAT Air exchange rate B 2 S 1/h Truncated NUREG/CR-6755, Section 3.2 (building) lognormal-n Q12 and Q21; Flow rate between rooms B 3 D m3/h 0 This dose model contains only Q23 and one receptor room Q32 Q10 and Q01; Outdoor inflow and B, P 3 NA m3/h Not used Outdoor inflow is calculated from Q20 and outflow room volume and air exchange Q02; Q30 rate and Q03 RECEPTOR PARAMETERS ND Number of receptors B 3 D - 1 This dose model contains only one receptor DLVL Receptor room B 3 D - 1 This dose model contains only one receptor room DX Receptor location (x, y, B 3 D m 5.85, 5.85, 1 Center of the rooms floor z)
TWGHT Receptor time fraction B 3 D - 1 NUREG/CR-5512, Vol. 3 BRTRATE Receptor M, B 2 S m3/d Triangular NUREG/CR-6755, Appendix A breathing/inhalation distribution rate INGE2 Indirect ingestion rate B 2 S m2/h Loguniform NUREG/CR-6755, Appendix A distribution SOURCE PARAMETERS NS Number of sources P 3 D - 1 Assumes contamination on the floor Source 1 - Floor SLVL Source room (also P 3 D - 1 This dose model contains only primary room) one room STYPE Source type P 3 D - Volume Source type selected for derivation of bulk material DCGLs Page 6-192
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-N, Parameters for Rancho Seco Bulk Material Sensitivity Analysis Parameter Parameter Basis for Parameter Name Description Class1 Priority2 Treatment3 Units Value Selection SDIR Source direction P 3 D - z NUREG/CR-5512 SX Source location (x, y, z) P 3 D m 5.85, 5.85, 0 X and Y distances are half of the square root of the room area derived from DTBD-04-004 sensitivity analysis SAREA Source area P 2 D m2 137 Room area from derived from DTBD-04-004 sensitivity analysis AIRFR Air release fraction B 2 S - Triangular NUREG/CR-6755, Appendix A distribution INGE1 Direct ingestion rate B 2 D g/h 3.45E-07 Calculated from the default ingestion rate of 1.1E-04 m2/h in the NUREG/CR-5512 industrial worker building occupancy scenario. 3.45E-07 h-1 is 1.1E-04 m2/h divided by the total contaminated area of 319 m2.
RMVFR Removable fraction P, B 1 NA - Not used Removable contamination is not assumed to be present on a volume source.
RF0 Source lifetime (also time P, B 2 NA d Not used Removable contamination is not for source removal) assumed to be present on a volume source.
RRF Radon release fraction P, B 3 NA - Not used Radon exposure is not regulated by the NRC RNUCACT Radionuclide P 2 D pCi/g 1 Calculates a dose conversion concentration/activity factor in units of mrem/yr per pCi/g NREGI0 Number of regions in P 3 D - 1 One homogenous region is volume source assumed for the volume source FCONT0 Contaminated region P 3 D - 1 One homogenous region is (volume source) assumed for the volume source Page 6-193
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-N, Parameters for Rancho Seco Bulk Material Sensitivity Analysis Parameter Parameter Basis for Parameter Name Description Class1 Priority2 Treatment3 Units Value Selection THICK0 Source region thickness P 2 D cm 30.48 Assumed maximum depth of (volume source) neutron activation or contamination DENSI0 Source density (volume P 1 S g/cm3 Uniform ANL-EAD-03-01, Appendix J source) distribution EROS0 Source erosion rate P, B 2 S cm/d Triangular ANL-EAD-03-01, Appendix J (volume source) distribution POROS0 Source porosity P 2 S - Uniform ANL-EAD-03-01, Appendix J distribution EFDIF0 Radon effective diffusion P 3 NA m2/sec Not used Radon exposure is not regulated coefficient by the NRC EMANA0 Radon emanation P 3 NA - Not used Radon exposure is not regulated fraction by the NRC MTLS Source material D - Concrete One homogenous region is assumed for the volume source SHIELDING PARAMETERS DSTH Shielding thickness P, B 2 S cm 0 Shielding is not used in this dose model DSDEN Shielding density P 1 NA g/cm3 2.4 Default value but not used in this dose model MTLC Shielding material P 3 NA - None Default value but not used in this dose model TRITIUM MODEL PARAMETERS DRYTHICK Dry zone thickness P 3 D cm 0 This model assumes that all bulk material is contaminated H3THICK Wet + dry zone thickness P 2 D cm 100 This parameter represents the depth from the surface of the contaminated material to the deepest point of the contaminated zone, thus the source region thickness.
H3VOLFRACT Volumetric water content P 2 S - Uniform ANL-EAD-03-01, Appendix J distribution Page 6-194
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-N, Parameters for Rancho Seco Bulk Material Sensitivity Analysis Parameter Parameter Basis for Parameter Name Description Class1 Priority2 Treatment3 Units Value Selection H3RMVF Water fraction available P 2 S - Triangular ANL-EAD-03-01, Appendix J for vaporization distribution HUMIDITY Humidity P, B 2 S g/m3 Uniform ANL-EAD-03-01, Appendix J distribution 1
Parameter Classification: P = Physical; B = Behavioral; M = Metabolic 2
1 = high priority parameter, 2 = medium priority parameter, 3 = low priority parameter 3
D = deterministic; S = stochastic; NA = not applicable Page 6-195
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Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-O, Distribution Parameters for Analysis of Bulk Material and Sensitive Parameter Results Distributions Statistical Parameters2 25% or Assigned 1
Parameter Priority Distribution PRCC3 75% Parameter 1 2 3 4 Quartile Value Deposition velocity 2 Loguniform 2.7E-06 2.7E-03 - - 0.96 75% 4.78E-04 Deposition velocity - Pm-147 2 Loguniform 2.7E-06 2.7E-03 - - -0.18 25% 1.52E-05 Building air exchange rate 2 Truncated lognormal-n 0.4187 0.88 0.001 0.999 -0.97 25% 0.839 Receptor breathing/inhalation rate 2 Triangular 12 46 33.6 - 0.74 75% 35.7 Indirect ingestion rate 2 Loguniform 2.8E-05 2.9E-04 - - 0.74 75% 1.61E-04 Indirect ingestion rate - Eu-154 2 Loguniform 2.8E-05 2.9E-04 - - -0.11 25% 5.02E-05 Air release fraction 2 Triangular 1E-06 1 0.07 - 0.80 75% 0.518 H-2 Air release fraction 2 Triangular 1E-06 1 0.07 - -0.05 No Distribution Source density - H-3, C-14, Fe-55, 1 Uniform 2.2 2.6 - - 0.16 75% 2.50 Tc-99, Pm-147, Eu-155, Np-237, Pu-238, Pu-239, Pu-240, Pu-241, Am-241, Pu-242, Cm-244 Source density - Na-22, Co-60, 1 Uniform 2.2 2.6 - - -1.00 25% 2.30 Sr-90, Nb-94, Ag-108m, Sb-125, Cs-134, Cs-137, Eu-152, Eu-154 Source erosion rate 2 Triangular 0.0 5.6E-07 0.0 - 0.88 75% 2.80E-07 H-3 Source porosity 2 Uniform 0.04 0.25 - - 0.82 75% 0.197 H-3 Volumetric water content 2 Uniform 0.04 0.25 - - -0.70 25% 0.0923 H-3 Water fraction available for 2 Triangular 0.5 1.0 0.75 - 0.28 75% 0.823 vaporization H-3 Humidity 2 Uniform 6.5 13.1 - - -0.47 25% 8.13 Notes:
1 1 = high priority parameter, 2 = medium priority parameter 2
Distributions Statistical Parameter Loguniform: 1 = minimum, 2 = maximum Triangular: 1 = minimum, 2 = maximum, 3 = most likely Uniform: 1 = minimum, 2 = maximum Truncated lognormal-n: 1 = underlying mean value, 2 = underlying standard deviation, 3 = lower quantile, 4 = upper quantile 3
PRCC = Partial ranked correlation coefficient for Time 1 Page 6-197
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-O, Distribution Parameters for Analysis of Bulk Material and Sensitive Parameter Results This page intentionally left blank Page 6-198
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-P, RESRAD-BUILD Input Parameters for Derivation of Containment Inspection Single Nuclide DCFs Parameter Parameter Basis for Parameter Name Description Class1 Priority2 Treatment3 Units Value Selection TIME PARAMETERS TTIME Exposure duration B 3 D d 365.25 NUREG/CR-5512, Vol. 1 FTIN Indoor fraction B 2 D - 3.65E-03 4 d/yr time in the containment building.
NTIME Number of times for P 3 D - 1 RESRAD-BUILD current default calculation acceptable for this calculation DOSE_TIME Time P 3 D yr 1 NUREG/CR-5512, Vol. 3 Section 5.2.2.4 POINT Maximum time P 3 D - 1 Argonne recommended value for integration points probabilistic calculations BUILDING PARAMETERS NROOM Number of rooms P 3 D - 1 NUREG/CR-5512 building occupancy scenario assumes only one contaminated room UD Deposition velocity P 2 D m/s 4.78E-04 The result of DTBD-04-004 sensitivity analysis DKSUS Resuspension rate P, B 1 D s-1 3.54E-05 Calculated from the NUREG-1720 recommended DandD resuspension factor of 9.6E-07 m-1, deposition velocity, air exchange rate and room height (DTBD-04-004)
H Room height P 2 D m 44.2 Distance of 145 ft. from the containment building basement to the base of the dome AREA Room area P 2 D m2 1230 Area of the containment building basement which is 130 ft. in diameter LAMBDAT Air exchange rate B 2 D 1/h 0.835 The result of DTBD-04-004 (building); sensitivity analysis LINPUT (room)
Page 6-199
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-P, RESRAD-BUILD Input Parameters for Derivation of Containment Inspection Single Nuclide DCFs Parameter Parameter Basis for Parameter Name Description Class1 Priority2 Treatment3 Units Value Selection Q12 and Q21; Flow rate between rooms B 3 D m3/h 0 This dose model contains only Q23 and Q32 one receptor room Q10 and Q01; Outdoor inflow and B, P 3 D m3/h Not used Outdoor inflow is calculated from Q20 and Q02; outflow room volume and air exchange Q30 and Q03 rate RECEPTOR PARAMETERS ND Number of receptors B 3 D - 1 This dose model contains only one receptor DLVL Receptor room B 3 D - 1 This dose model contains only one receptor room DX Receptor location (x, y, B 3 D m 19.8, 3.05, Center of the 10 ft. x 20 ft. access z) 9.23 platform extending into the containment building at grade level TWGHT Receptor time fraction B 3 D - 1 NUREG/CR-5512, Vol. 3 BRTRATE Receptor M, B 2 D m3/d 35.7 The result of the DTBD-04-004 breathing/inhalation sensitivity analysis rate INGE2 Indirect ingestion rate B 2 D m2/h 1.61E-04 The result of the DTBD-04-004 sensitivity analysis SOURCE PARAMETERS NS Number of sources P 3 D - 6 Assumes contamination on four walls plus the floor and ceiling Source 1 - Floor SLVL Source room (also P 3 D - 1 This dose model contains only primary room) one room STYPE Source type P 3 D - Area NUREG/CR-5512 SDIR Source direction P 3 D - z NUREG/CR-5512 SX Source location (x, y, z) P 3 D m 19.8, 19.8, 0 Center of containment building basement SAREA Source area P 2 D m2 1230 Area of containment building basement Page 6-200
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-P, RESRAD-BUILD Input Parameters for Derivation of Containment Inspection Single Nuclide DCFs Parameter Parameter Basis for Parameter Name Description Class1 Priority2 Treatment3 Units Value Selection AIRFR Air release fraction B 2 D - 0.517 The result of the DTBD-04-004 sensitivity analysis INGE1 Direct ingestion rate B 2 D g/h or 8.94E-08 Calculated from the default 1/h ingestion rate of 1.1E-04 m2/h in the NUREG/CR-5512 industrial worker building occupancy scenario. 8.94E-08 h-1 is 1.1E-04 m2/h divided by the total contaminated area of 1230 m2.
RMVFR Removable fraction P, B 1 D - 0.1 10% of the contamination is removable (NUREG/CR-5512 industrial worker building occupancy scenario default).
The default parameter value for the loose fraction for the building occupancy scenario is 0.1 (Table C7.1, NUREG/CR-1727).
RF0 Source lifetime (also time P, B 2 D d 52800 The result of the DTBD-04-004 for source removal) sensitivity analysis RRF Radon release fraction P, B 3 D - 0 Radon exposure is not regulated by the NRC RNUCACT Radionuclide P 2 D dpm/m2 100 Calculates a dose conversion concentration/activity factor in units of mrem/yr per dpm/100 cm2 NREGI0 Number of regions in P 3 D - Not used A volume source is not used in volume source this dose model FCONT0 Contaminated region P 3 D - Not used A volume source is not used in (volume source) this dose model THICK0 Source region thickness P 2 D cm Not used A volume source is not used in (volume source) this dose model DENSI0 Source density (volume P 1 D g/cm3 Not used A volume source is not used in source) this dose model Page 6-201
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-P, RESRAD-BUILD Input Parameters for Derivation of Containment Inspection Single Nuclide DCFs Parameter Parameter Basis for Parameter Name Description Class1 Priority2 Treatment3 Units Value Selection EROS0 Source erosion rate P, B 2 D cm/d Not used A volume source is not used in (volume source) this dose model POROS0 Source porosity P 2 D - Not used A volume source is not used in this dose model EFDIF0 Radon effective diffusion P 3 D m2/sec 0 Radon exposure is not regulated coefficient by the NRC EMANA0 Radon emanation P 3 D - 0 Radon exposure is not regulated fraction by the NRC MTLS Source material D - Not used A volume source is not used in this dose model Source 2 - West wall SLVL Source room (also P 3 D - 1 This dose model contains only primary room) one room STYPE Source type P 3 D - Area NUREG/CR-5512 SDIR Source direction P 3 D - x NUREG/CR-5512 SX Source location (x, y, z) P 3 D m 0, 19.8, 22.1 Y distance is half of the containment building floor diameter and the z distance is half of the containment building distance from basement floor to base of the dome (72.5 ft.)
SAREA Source area P 2 D m/m2 1380 One fourth of the containment building cylindrical wall area AIRFR Air release fraction B 2 D - 0.517 The result of the DTBD-04-004 sensitivity analysis INGE1 Direct ingestion rate B 2 D g/h or 7.97E-08 Calculated from the default 1/h ingestion rate of 1.1E-04 m2/h in the NUREG/CR-5512 industrial worker building occupancy scenario. 7.97E-08 h-1 is 1.1E-04 m2/h divided by the total contaminated area of 1380 m2.
Page 6-202
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-P, RESRAD-BUILD Input Parameters for Derivation of Containment Inspection Single Nuclide DCFs Parameter Parameter Basis for Parameter Name Description Class1 Priority2 Treatment3 Units Value Selection RMVFR Removable fraction P, B 1 D - 0.1 10% of the contamination is removable (NUREG/CR-5512 industrial worker building occupancy scenario default).
The default parameter value for the loose fraction for the building occupancy scenario is 0.1 (Table C7.1, NUREG/CR-1727).
RF0 Source lifetime (also time P, B 2 D d 52800 The result of the DTBD-04-004 for source removal) sensitivity analysis RRF Radon release fraction P, B 3 D - 0 Radon exposure is not regulated by the NRC RNUCACT Radionuclide P 2 D dpm/m2 100 Calculates a dose conversion concentration/activity factor in units of mrem/yr per dpm/100 cm2 NREGI0 Number of regions in P 3 D - Not used A volume source is not used in volume source this dose model FCONT0 Contaminated region P 3 D - Not used A volume source is not used in (volume source) this dose model THICK0 Source region thickness P 2 D cm Not used A volume source is not used in (volume source) this dose model DENSI0 Source density (volume P 1 D g/cm3 Not used A volume source is not used in source) this dose model EROS0 Source erosion rate P, B 2 D cm/d Not used A volume source is not used in (volume source) this dose model POROS0 Source porosity P 2 D - Not used A volume source is not used in this dose model EFDIF0 Radon effective diffusion P 3 D m2/sec 0 Radon exposure is not regulated coefficient by the NRC EMANA0 Radon emanation P 3 D - 0 Radon exposure is not regulated fraction by the NRC MTLS Source material D - Not used A volume source is not used in this dose model Page 6-203
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-P, RESRAD-BUILD Input Parameters for Derivation of Containment Inspection Single Nuclide DCFs Parameter Parameter Basis for Parameter Name Description Class1 Priority2 Treatment3 Units Value Selection Source 3 - North wall SLVL Source room (also P 3 D - 1 This dose model contains only primary room) one room STYPE Source type P 3 D - Area NUREG/CR-5512 SDIR Source direction P 3 D - y NUREG/CR-5512 SX Source location (x, y, z) P 3 D m 19.8, 0, 22.1 X distance is half of the containment building floor diameter and the Z distance is half of the containment building distance from basement floor to base of the dome (72.5 ft.)
SAREA Source area P 2 D m/m2 1380 One fourth of the containment building cylindrical wall area AIRFR Air release fraction B 2 D - 0.517 The result of the DTBD-04-004 sensitivity analysis INGE1 Direct ingestion rate B 2 D g/h or 7.97E-08 Calculated from the default 1/h ingestion rate of 1.1E-04 m2/h in the NUREG/CR-5512 industrial worker building occupancy scenario. 7.97E-08 h-1 is 1.1E-04 m2/h divided by the total contaminated area of 1380 m2.
RMVFR Removable fraction P, B 1 D - 0.1 10% of the contamination is removable (NUREG/CR-5512 industrial worker building occupancy scenario default).
The default parameter value for the loose fraction for the building occupancy scenario is 0.1 (Table C7.1, NUREG/CR-1727).
RF0 Source lifetime (also time P, B 2 D d 52800 The result of the DTBD-04-004 for source removal) sensitivity analysis Page 6-204
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-P, RESRAD-BUILD Input Parameters for Derivation of Containment Inspection Single Nuclide DCFs Parameter Parameter Basis for Parameter Name Description Class1 Priority2 Treatment3 Units Value Selection RRF Radon release fraction P, B 3 D - 0 Radon exposure is not regulated by the NRC RNUCACT Radionuclide P 2 D dpm/m2 100 Calculates a dose conversion concentration/activity factor in units of mrem/yr per dpm/100 cm2 NREGI0 Number of regions in P 3 D - Not used A volume source is not used in volume source this dose model FCONT0 Contaminated region P 3 D - Not used A volume source is not used in (volume source) this dose model THICK0 Source region thickness P 2 D cm Not used A volume source is not used in (volume source) this dose model DENSI0 Source density (volume P 1 D g/cm3 Not used A volume source is not used in source) this dose model EROS0 Source erosion rate P, B 2 D cm/d Not used A volume source is not used in (volume source) this dose model POROS0 Source porosity P 2 D - Not used A volume source is not used in this dose model EFDIF0 Radon effective diffusion P 3 D m2/sec 0 Radon exposure is not regulated coefficient by the NRC EMANA0 Radon emanation P 3 D - 0 Radon exposure is not regulated fraction by the NRC MTLS Source material D - Not used A volume source is not used in this dose model Source 4 - East wall SLVL Source room (also P 3 D - 1 This dose model contains only primary room) one room STYPE Source type P 3 D - Area NUREG/CR-5512 SDIR Source direction P 3 D - x NUREG/CR-5512 Page 6-205
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-P, RESRAD-BUILD Input Parameters for Derivation of Containment Inspection Single Nuclide DCFs Parameter Parameter Basis for Parameter Name Description Class1 Priority2 Treatment3 Units Value Selection SX Source location P 3 D m 39.6, 19.8, X distance is the diameter of the 22.1 containment building floor, the Y distance is half of the diameter of the containment building floor and the Z distance is half of the containment building distance from basement floor to base of the dome (72.5 ft.)
SAREA Source area P 2 D m/m2 1380 One fourth of the containment building cylindrical wall area AIRFR Air release fraction B 2 D - 0.517 The result of the DTBD-04-004 sensitivity analysis INGE1 Direct ingestion rate B 2 D g/h or 7.97E-08 Calculated from the default 1/h ingestion rate of 1.1E-04 m2/h in the NUREG/CR-5512 industrial worker building occupancy scenario. 7.97E-08 h-1 is 1.1E-04 m2/h divided by the total contaminated area of 1380 m2.
RMVFR Removable fraction P, B 1 D - 0.1 10% of the contamination is removable (NUREG/CR-5512 industrial worker building occupancy scenario default).
The default parameter value for the loose fraction for the building occupancy scenario is 0.1 (Table C7.1, NUREG/CR-1727).
RF0 Source lifetime (also time P, B 2 D d 52800 The result of the DTBD-04-004 for source removal) sensitivity analysis RRF Radon release fraction P, B 3 D - 0 Radon exposure is not regulated by the NRC Page 6-206
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-P, RESRAD-BUILD Input Parameters for Derivation of Containment Inspection Single Nuclide DCFs Parameter Parameter Basis for Parameter Name Description Class1 Priority2 Treatment3 Units Value Selection RNUCACT Radionuclide P 2 D dpm/m2 100 Calculates a dose conversion concentration/activity factor in units of mrem/yr per dpm/100 cm2 NREGI0 Number of regions in P 3 D - Not used A volume source is not used in volume source this dose model FCONT0 Contaminated region P 3 D - Not used A volume source is not used in (volume source) this dose model THICK0 Source region thickness P 2 D cm Not used A volume source is not used in (volume source) this dose model DENSI0 Source density (volume P 1 D g/cm3 Not used A volume source is not used in source) this dose model EROS0 Source erosion rate P, B 2 D cm/d Not used A volume source is not used in (volume source) this dose model POROS0 Source porosity P 2 D - Not used A volume source is not used in this dose model EFDIF0 Radon effective diffusion P 3 D m2/sec 0 Radon exposure is not regulated coefficient by the NRC EMANA0 Radon emanation P 3 D - 0 Radon exposure is not regulated fraction by the NRC MTLS Source material D - Not used A volume source is not used in this dose model Source 5 - South wall SLVL Source room (also P 3 D - 1 This dose model contains only primary room) one room STYPE Source type P 3 D - Area NUREG/CR-5512 SDIR Source direction P 3 D - y NUREG/CR-5512 Page 6-207
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-P, RESRAD-BUILD Input Parameters for Derivation of Containment Inspection Single Nuclide DCFs Parameter Parameter Basis for Parameter Name Description Class1 Priority2 Treatment3 Units Value Selection SX Source location P 3 D m 19.8, 39.6, X is half of the diameter of the 22.1 containment building floor, the Y distance is the diameter of the containment building floor and the Z distance is half of the containment building distance from basement floor to base of the dome (72.5 ft.)
SAREA Source area P 2 D m/m2 1380 One fourth of the containment building cylindrical wall area AIRFR Air release fraction B 2 D - 0.517 The result of the DTBD-04-004 sensitivity analysis INGE1 Direct ingestion rate B 2 D g/h or 7.97E-08 Calculated from the default 1/h ingestion rate of 1.1E-04 m2/h in the NUREG/CR-5512 industrial worker building occupancy scenario. 7.97E-08 h-1 is 1.1E-04 m2/h divided by the total contaminated area of 1380 m2.
RMVFR Removable fraction P, B 1 D - 0.1 10% of the contamination is removable (NUREG/CR-5512 industrial worker building occupancy scenario default).
The default parameter value for the loose fraction for the building occupancy scenario is 0.1 (Table C7.1, NUREG/CR-1727).
RF0 Source lifetime (also time P, B 2 D d 52800 The result of the DTBD-04-004 for source removal) sensitivity analysis RRF Radon release fraction P, B 3 D - 0 Radon exposure is not regulated by the NRC Page 6-208
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-P, RESRAD-BUILD Input Parameters for Derivation of Containment Inspection Single Nuclide DCFs Parameter Parameter Basis for Parameter Name Description Class1 Priority2 Treatment3 Units Value Selection RNUCACT Radionuclide P 2 D dpm/m2 100 Calculates a dose conversion concentration/activity factor in units of mrem/yr per dpm/100 cm2 NREGI0 Number of regions in P 3 D - Not used A volume source is not used in volume source this dose model FCONT0 Contaminated region P 3 D - Not used A volume source is not used in (volume source) this dose model THICK0 Source region thickness P 2 D cm Not used A volume source is not used in (volume source) this dose model DENSI0 Source density (volume P 1 D g/cm3 Not used A volume source is not used in source) this dose model EROS0 Source erosion rate P, B 2 D cm/d Not used A volume source is not used in (volume source) this dose model POROS0 Source porosity P 2 D - Not used A volume source is not used in this dose model EFDIF0 Radon effective diffusion P 3 D m2/sec 0 Radon exposure is not regulated coefficient by the NRC EMANA0 Radon emanation P 3 D - 0 Radon exposure is not regulated fraction by the NRC MTLS Source material D - Not used A volume source is not used in this dose model Source 6 - Ceiling SLVL Source room (also P 3 D - 1 This dose model contains only primary room) one room STYPE Source type P 3 D - Area NUREG/CR-5512 SDIR Source direction P 3 D - z NUREG/CR-5512 SX Source location P 3 D m 19.8, 19.8, This defines the center of the 44.2 base of the containment buildings dome SAREA Source area P 2 D m/m2 1230 Area of the containment building basement which is 130 ft. in diameter Page 6-209
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-P, RESRAD-BUILD Input Parameters for Derivation of Containment Inspection Single Nuclide DCFs Parameter Parameter Basis for Parameter Name Description Class1 Priority2 Treatment3 Units Value Selection AIRFR Air release fraction B 2 D - 0.517 The result of the DTBD-04-004 sensitivity analysis INGE1 Direct ingestion rate B 2 D g/h or 8.94E-08 Calculated from the default 1/h ingestion rate of 1.1E-04 m2/h in the NUREG/CR-5512 industrial worker building occupancy scenario. 8.94E-08 h-1 is 1.1E-04 m2/h divided by the total contaminated area of 1230 m2.
RMVFR Removable fraction P, B 1 D - 0.1 10% of the contamination is removable (NUREG/CR-5512 industrial worker building occupancy scenario default).
The default parameter value for the loose fraction for the building occupancy scenario is 0.1 (Table C7.1, NUREG/CR-1727).
RF0 Source lifetime (also time P, B 2 D d 52800 The result of the DTBD-04-004 for source removal) sensitivity analysis RRF Radon release fraction P, B 3 D - 0 Radon exposure is not regulated by the NRC RNUCACT Radionuclide P 2 D dpm/m2 100 Calculates a dose conversion concentration/activity factor in units of mrem/yr per dpm/100 cm2 NREGI0 Number of regions in P 3 D - Not used A volume source is not used in volume source this dose model FCONT0 Contaminated region P 3 D - Not used A volume source is not used in (volume source) this dose model THICK0 Source region thickness P 2 D cm Not used A volume source is not used in (volume source) this dose model DENSI0 Source density (volume P 1 D g/cm3 Not used A volume source is not used in source) this dose model Page 6-210
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-P, RESRAD-BUILD Input Parameters for Derivation of Containment Inspection Single Nuclide DCFs Parameter Parameter Basis for Parameter Name Description Class1 Priority2 Treatment3 Units Value Selection EROS0 Source erosion rate P, B 2 D cm/d Not used A volume source is not used in (volume source) this dose model POROS0 Source porosity P 2 D - Not used A volume source is not used in this dose model EFDIF0 Radon effective diffusion P 3 D m2/sec 0 Radon exposure is not regulated coefficient by the NRC EMANA0 Radon emanation P 3 D - 0 Radon exposure is not regulated fraction by the NRC MTLS Source material D - Not used A volume source is not used in this dose model SHIELDING PARAMETERS DSTH Shielding thickness P, B 2 D cm 0 Shielding is not used in this dose model DSDEN Shielding density P 1 D g/cm3 0 Shielding is not used in this dose model MTLC Shielding material P 3 D - None Shielding is not used in this dose model TRITIUM MODEL PARAMETERS DRYTHICK Dry zone thickness P 3 D cm Not Used This parameter is not used for a surface source H3THICK Wet + dry zone thickness P 2 D cm Not Used This parameter is not used for a surface source H3VOLFRACT Volumetric water content P 2 D - Not Used This parameter is not used for a surface source H3RMVF Water fraction available P 2 D - Not Used This parameter is not used for a for vaporization surface source HUMIDITY Humidity P, B 2 D g/m3 Not Used This parameter is not used for a surface source Notes:
1 Parameter Classification: P = Physical; B = Behavioral; M = Metabolic 2
1 = high priority parameter, 2 = medium priority parameter, 3 = low priority parameter 3
D = Deterministic treatment, S = Stochastic treatment Page 6-211
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-P, RESRAD-BUILD Input Parameters for Derivation of Containment Inspection Single Nuclide DCFs This page intentionally left blank Page 6-212
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-Q, Parameters for Containment Building DCGL Sensitivity Analysis Parameter Parameter Basis for Parameter Name Description Class1 Priority2 Treatment3 Units Value Selection TIME PARAMETERS TTIME Exposure duration B 3 D d 179.00 ANL/EAD/03-01 template for building renovation scenario FTIN Indoor fraction B 2 D - 0.351 ANL/EAD/03-01 template for building renovation scenario NTIME Number of times for P 3 D - 2 RESRAD-BUILD current default calculation Physical priority 3 value acceptable for the calculation DOSE_TIME Time P 3 D yr 1 NUREG/CR-5512, Vol. 3 Section 5.2.2.4 POINT Maximum time P 3 D - 1 Argonne National Laboratory integration points recommended value for probabilistic calculations BUILDING PARAMETERS NROOM Number of rooms P 3 D - 1 The decommissioned containment building contains only one contaminated room UD Deposition velocity P 2 S m/s Loguniform NUREG/CR-6755, Section 3.3 distribution UD Deposition velocity P 2 S m/s 0 ANL-EAD-03-01, Appendix G, (H-3 only) Section G.3.2 DKSUS Resuspension rate P, B 1 D s-1 1.33E-09 Calculated from the NUREG-1720 recommended DandD resuspension factor of 9.6E-07 m-1, deposition velocity, air exchange rate and room height (see Section 6.2 of DTBD 004)
H Room height P 2 D m 44.2 Distance of 145 ft. from the containment building basement to the base of the dome Page 6-213
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-Q, Parameters for Containment Building DCGL Sensitivity Analysis Parameter Parameter Basis for Parameter Name Description Class1 Priority2 Treatment3 Units Value Selection AREA Room area P 2 D m2 1230 Area of the containment building basement which is 130 ft. in diameter LAMBDAT Air exchange rate B 2 S 1/h Truncated NUREG/CR-6755, Section 3.2 (building) lognormal-n Q12 and Q21; Flow rate between B 3 D m3/h 0 This dose model contains only Q23 and Q32 rooms one receptor room Q10 and Q01; Outdoor inflow and B, P 3 NA m3/h Not used Outdoor inflow is calculated from Q20 and Q02; outflow room volume and air exchange Q30 and Q03 rate RECEPTOR PARAMETERS ND Number of receptors B 3 D - 1 This dose model contains only one receptor DLVL Receptor room B 3 D - 1 This dose model contains only one receptor room DX Receptor location (x, y, B 3 D m 19.8, 19.8, 1 One meter above the center of z) the containment buildings floor TWGHT Receptor time fraction B 3 D - 1 NUREG/CR-5512, Vol. 3 BRTRATE Receptor M, B 2 S m3/d 38.4 ANL/EAD/03-1 Table 3.1 receptor breathing/inhalation inhalation rate for the building rate renovation scenario INGE2 Indirect ingestion rate B 2 S m2/h 0 ANL/EAD/03-1 Table 3.1 receptor indirect ingestion rate for the building renovation scenario SOURCE PARAMETERS NS Number of sources P 3 D - 6 Assumes contamination on four walls plus the floor and ceiling Source 1 - Floor SLVL Source room (also P 3 D - 1 This dose model contains only primary room) one room STYPE Source type P 3 D - Volume ANL/EAD/03-1 Table 3.1 source type for the building renovation scenario Page 6-214
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-Q, Parameters for Containment Building DCGL Sensitivity Analysis Parameter Parameter Basis for Parameter Name Description Class1 Priority2 Treatment3 Units Value Selection SDIR Source direction P 3 D - z NUREG/CR-5512 SX Source location (x, y, z) P 3 D m 19.8, 19.8, 0 This defines the center of the containment buildings floor SAREA Source area P 2 D m2 1230 Area of the containment building basement which is 130 ft. in diameter AIRFR Air release fraction B 2 S - 0.1 ANL/EAD/03-1 Table 3.1 air release fraction for the building renovation scenario INGE1 Direct ingestion rate B 2 D g/h 0.052 Effective transfer rate from NUREG/CR-5512, Vol. 1 building renovation scenario for ingestion of loose dust to the hands and mouth during building renovation RMVFR Removable fraction P, B 1 NA - Not used Removable contamination is not assumed to be present on a volume source RF0 Source lifetime (also P, B 2 NA d Not used Removable contamination is not time for source assumed to be present on a removal) volume source RRF Radon release fraction P, B 3 NA - Not used Radon exposure is not regulated by the NRC RNUCACT Radionuclide P 2 D pCi/g 1 Calculates a dose conversion concentration/activity factor in units of mrem/yr per pCi/g NREGI0 Number of regions in P 3 D - 1 One homogenous region is volume source assumed for the volume source FCONT0 Contaminated region P 3 D - 1 One homogenous region is (volume source) assumed for the volume source THICK0 Source region thickness P 2 D cm 15 ANL/EAD/03-01 template for (volume source) building renovation scenario Page 6-215
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-Q, Parameters for Containment Building DCGL Sensitivity Analysis Parameter Parameter Basis for Parameter Name Description Class1 Priority2 Treatment3 Units Value Selection DENSI0 Source density (volume P 1 S g/cm3 Uniform ANL-EAD-03-01, Appendix J source) distribution EROS0 Source erosion rate P, B 2 S cm/d 4.1E-4 ANL/EAD/03-1 Table 3.1 source (volume source) erosion rate for the building renovation scenario POROS0 Source porosity P 2 S - Uniform ANL-EAD-03-01, Appendix J distribution EFDIF0 Radon effective diffusion P 3 NA m2/sec Not used Radon exposure is not regulated coefficient by the NRC EMANA0 Radon emanation P 3 NA - Not used Radon exposure is not regulated fraction by the NRC MTLS Source material D - Concrete One homogenous region is assumed Source 2 - West wall SLVL Source room (also P 3 D - 1 This dose model contains only primary room) one room STYPE Source type P 3 D - Volume ANL/EAD/03-1 Table 3.1 source type for the building renovation scenario SDIR Source direction P 3 D - x NUREG/CR-5512 SX Source location (x, y, z) P 3 D m 0, 17.5, 22.1 Y distance is half of the square root of the containment building basement area and z distance is half of the containment building distance from basement floor to base of the dome (72.5 ft.)
SAREA Source area P 2 D m2 1380 One fourth of the containment building cylindrical wall area AIRFR Air release fraction B 2 S - 0.1 ANL/EAD/03-1 Table 3.1 air release fraction for the building renovation scenario Page 6-216
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-Q, Parameters for Containment Building DCGL Sensitivity Analysis Parameter Parameter Basis for Parameter Name Description Class1 Priority2 Treatment3 Units Value Selection INGE1 Direct ingestion rate B 2 D g/h or 0.052 Effective transfer rate from 1/h NUREG/CR-5512, Vol. 1 building renovation scenario for ingestion of loose dust to the hands and mouth during building renovation RMVFR Removable fraction P, B 1 NA - Not used Removable contamination is not assumed to be present on a volume source.
RF0 Source lifetime (also P, B 2 NA d Not used Removable contamination is not time for source assumed to be present on a removal) volume source.
RRF Radon release fraction P, B 3 NA - Not used Radon exposure is not regulated by the NRC RNUCACT Radionuclide P 2 D pCi/g 1 Calculates a dose conversion concentration/activity factor in units of mrem/yr per pCi/g NREGI0 Number of regions in P 3 D - 1 One homogenous region is volume source assumed for the volume source FCONT0 Contaminated region P 3 D - 1 One homogenous region is (volume source) assumed for the volume source THICK0 Source region thickness P 2 D cm 15 ANL/EAD/03-01 template for (volume source) building renovation scenario DENSI0 Source density (volume P 1 S g/cm3 Uniform ANL-EAD-03-01, Appendix J source) distribution EROS0 Source erosion rate P, B 2 S cm/d 4.1E-4 ANL/EAD/03-1 Table 3.1 source (volume source) erosion rate for the building renovation scenario POROS0 Source porosity P 2 S - Uniform ANL-EAD-03-01, Appendix J distribution EFDIF0 Radon effective diffusion P 3 NA m2/sec Not used Radon exposure is not regulated coefficient by the NRC Page 6-217
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-Q, Parameters for Containment Building DCGL Sensitivity Analysis Parameter Parameter Basis for Parameter Name Description Class1 Priority2 Treatment3 Units Value Selection EMANA0 Radon emanation P 3 NA - Not used Radon exposure is not regulated fraction by the NRC MTLS Source material D - Concrete One homogenous region is assumed Source 3 - North wall SLVL Source room (also P 3 D - 1 This dose model contains only primary room) one room STYPE Source type P 3 D - Volume ANL/EAD/03-1 Table 3.1 source type for the building renovation scenario SDIR Source direction P 3 D - y NUREG/CR-5512 SX Source location (x, y, z) P 3 D m 17.5, 35, 22.1 X distance is half of the square root of the containment building basement area, Y distance is the square root of the containment building basement area and Z distance is half of the containment building distance from basement floor to base of the dome (72.5 ft.)
SAREA Source area P 2 D m2 1380 One fourth of the containment building cylindrical wall area AIRFR Air release fraction B 2 S - 0.1 ANL/EAD/03-1 Table 3.1 air release fraction for the building renovation scenario INGE1 Direct ingestion rate B 2 D g/h or 0.052 Effective transfer rate from 1/h NUREG/CR-5512, Vol. 1 building renovation scenario for ingestion of loose dust to the hands and mouth during building renovation RMVFR Removable fraction P, B 1 NA - Not used Removable contamination is not assumed to be present on a volume source.
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Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-Q, Parameters for Containment Building DCGL Sensitivity Analysis Parameter Parameter Basis for Parameter Name Description Class1 Priority2 Treatment3 Units Value Selection RF0 Source lifetime (also P, B 2 NA d Not used Removable contamination is not time for source assumed to be present on a removal) volume source.
RRF Radon release fraction P, B 3 NA - Not used Radon exposure is not regulated by the NRC RNUCACT Radionuclide P 2 D pCi/g 1 Calculates a dose conversion concentration/activity factor in units of mrem/yr per pCi/g NREGI0 Number of regions in P 3 D - 1 One homogenous region is volume source assumed for the volume source FCONT0 Contaminated region P 3 D - 1 One homogenous region is (volume source) assumed for the volume source THICK0 Source region thickness P 2 D cm 15 ANL/EAD/03-01 template for (volume source) building renovation scenario DENSI0 Source density (volume P 1 S g/cm3 Uniform ANL-EAD-03-01, Appendix J source) distribution EROS0 Source erosion rate P, B 2 S cm/d 4.1E-4 ANL/EAD/03-1 Table 3.1 source (volume source) erosion rate for the building renovation scenario POROS0 Source porosity P 2 S - Uniform ANL-EAD-03-01, Appendix J distribution EFDIF0 Radon effective diffusion P 3 NA m2/sec Not used Radon exposure is not regulated coefficient by the NRC EMANA0 Radon emanation P 3 NA - Not used Radon exposure is not regulated fraction by the NRC MTLS Source material D - Concrete One homogenous region is assumed Source 4 - East wall SLVL Source room (also P 3 D - 1 This dose model contains only primary room) one room STYPE Source type P 3 D - Volume ANL/EAD/03-1 Table 3.1 source type for the building renovation scenario Page 6-219
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-Q, Parameters for Containment Building DCGL Sensitivity Analysis Parameter Parameter Basis for Parameter Name Description Class1 Priority2 Treatment3 Units Value Selection SDIR Source direction P 3 D - x NUREG/CR-5512 SX Source location P 3 D m 35, 17.5, 22.1 X distance is the square root of the containment building basement area, Y distance is half of the square root of the containment building basement area and Z distance is half of the containment building distance from basement floor to base of the dome (72.5 ft.)
SAREA Source area P 2 D m2 1380 One fourth of the containment building cylindrical wall area AIRFR Air release fraction B 2 S - 0.1 ANL/EAD/03-1 Table 3.1 air release fraction for the building renovation scenario INGE1 Direct ingestion rate B 2 D g/h or 0.052 Effective transfer rate from 1/h NUREG/CR-5512, Vol. 1 building renovation scenario for ingestion of loose dust to the hands and mouth during building renovation RMVFR Removable fraction P, B 1 NA - Not used Removable contamination is not assumed to be present on a volume source.
RF0 Source lifetime (also P, B 2 NA d Not used Removable contamination is not time for source assumed to be present on a removal) volume source.
RRF Radon release fraction P, B 3 NA - Not used Radon exposure is not regulated by the NRC RNUCACT Radionuclide P 2 D pCi/g 1 Calculates a dose conversion concentration/activity factor in units of mrem/yr per pCi/g NREGI0 Number of regions in P 3 D - 1 One homogenous region is volume source assumed for the volume source Page 6-220
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-Q, Parameters for Containment Building DCGL Sensitivity Analysis Parameter Parameter Basis for Parameter Name Description Class1 Priority2 Treatment3 Units Value Selection FCONT0 Contaminated region P 3 D - 1 One homogenous region is (volume source) assumed for the volume source THICK0 Source region thickness P 2 D cm 15 ANL/EAD/03-01 template for (volume source) building renovation scenario DENSI0 Source density (volume P 1 S g/cm3 Uniform ANL-EAD-03-01, Appendix J source) distribution EROS0 Source erosion rate P, B 2 S cm/d 4.1E-4 ANL/EAD/03-1 Table 3.1 source (volume source) erosion rate for the building renovation scenario POROS0 Source porosity P 2 S - Uniform ANL-EAD-03-01, Appendix J distribution EFDIF0 Radon effective diffusion P 3 NA m2/sec Not used Radon exposure is not regulated coefficient by the NRC EMANA0 Radon emanation P 3 NA - Not used Radon exposure is not regulated fraction by the NRC MTLS Source material D - Concrete One homogenous region is assumed Source 5 - South wall SLVL Source room (also P 3 D - 1 This dose model contains only primary room) one room STYPE Source type P 3 D - Volume ANL/EAD/03-1 Table 3.1 source type for the building renovation scenario SDIR Source direction P 3 D - y NUREG/CR-5512 SX Source location P 3 D m 17.5, 17.5, X and Y distances are half of the 22.1 square root of the containment building basement area and Z distance is half of the containment building distance from basement floor to base of the dome (72.5 ft.)
SAREA Source area P 2 D m2 1380 One fourth of the containment building cylindrical wall area Page 6-221
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-Q, Parameters for Containment Building DCGL Sensitivity Analysis Parameter Parameter Basis for Parameter Name Description Class1 Priority2 Treatment3 Units Value Selection AIRFR Air release fraction B 2 S - 0.1 ANL/EAD/03-1 Table 3.1 air release fraction for the building renovation scenario INGE1 Direct ingestion rate B 2 D g/h or 0.052 Effective transfer rate from 1/h NUREG/CR-5512, Vol. 1 building renovation scenario for ingestion of loose dust to the hands and mouth during building renovation RMVFR Removable fraction P, B 1 NA - Not used Removable contamination is not assumed to be present on a volume source.
RF0 Source lifetime (also P, B 2 NA d Not used Removable contamination is not time for source assumed to be present on a removal) volume source.
RRF Radon release fraction P, B 3 NA - Not used Radon exposure is not regulated by the NRC RNUCACT Radionuclide P 2 D pCi/g 1 Calculates a dose conversion concentration/activity factor in units of mrem/yr per pCi/g NREGI0 Number of regions in P 3 D - 1 One homogenous region is volume source assumed for the volume source FCONT0 Contaminated region P 3 D - 1 One homogenous region is (volume source) assumed for the volume source THICK0 Source region thickness P 2 D cm 15 ANL/EAD/03-01 template for (volume source) building renovation scenario DENSI0 Source density (volume P 1 S g/cm3 Uniform ANL-EAD-03-01, Appendix J source) distribution EROS0 Source erosion rate P, B 2 S cm/d 4.1E-4 ANL/EAD/03-1 Table 3.1 source (volume source) erosion rate for the building renovation scenario POROS0 Source porosity P 2 S - Uniform ANL-EAD-03-01, Appendix J distribution Page 6-222
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-Q, Parameters for Containment Building DCGL Sensitivity Analysis Parameter Parameter Basis for Parameter Name Description Class1 Priority2 Treatment3 Units Value Selection EFDIF0 Radon effective diffusion P 3 NA m2/sec Not used Radon exposure is not regulated coefficient by the NRC EMANA0 Radon emanation P 3 NA - Not used Radon exposure is not regulated fraction by the NRC MTLS Source material D - Concrete One homogenous region is assumed Source 6 - Ceiling SLVL Source room (also P 3 D - 1 This dose model contains only primary room) one room STYPE Source type P 3 D - Volume ANL/EAD/03-1 Table 3.1 source type for the building renovation scenario SDIR Source direction P 3 D - z NUREG/CR-5512 SX Source location (x, y, z) P 3 D m 19.8, 19.8, This defines the center of the 44.2 base of the containment buildings dome SAREA Source area P 2 D m2 1230 Area of the containment building basement which is 130 ft. in diameter AIRFR Air release fraction B 2 S - 0.1 ANL/EAD/03-1 Table 3.1 air release fraction for the building renovation scenario INGE1 Direct ingestion rate B 2 D g/h 0.052 Effective transfer rate from NUREG/CR-5512, Vol. 1 building renovation scenario for ingestion of loose dust to the hands and mouth during building renovation RMVFR Removable fraction P, B 1 NA - Not used Removable contamination is not assumed to be present on a volume source.
Page 6-223
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-Q, Parameters for Containment Building DCGL Sensitivity Analysis Parameter Parameter Basis for Parameter Name Description Class1 Priority2 Treatment3 Units Value Selection RF0 Source lifetime (also P, B 2 NA d Not used Removable contamination is not time for source assumed to be present on a removal) volume source.
RRF Radon release fraction P, B 3 NA - Not used Radon exposure is not regulated by the NRC RNUCACT Radionuclide P 2 D pCi/g 1 Calculates a dose conversion concentration/activity factor in units of mrem/yr per pCi/g NREGI0 Number of regions in P 3 D - 1 One homogenous region is volume source assumed for the volume source FCONT0 Contaminated region P 3 D - 1 One homogenous region is (volume source) assumed for the volume source THICK0 Source region thickness P 2 D cm 15 ANL/EAD/03-01 template for (volume source) building renovation scenario DENSI0 Source density (volume P 1 S g/cm3 Uniform ANL-EAD-03-01, Appendix J source) distribution EROS0 Source erosion rate P, B 2 S cm/d 4.1E-4 ANL/EAD/03-1 Table 3.1 source (volume source) erosion rate for the building renovation scenario POROS0 Source porosity P 2 S - Uniform ANL-EAD-03-01, Appendix J distribution EFDIF0 Radon effective diffusion P 3 NA m2/sec Not used Radon exposure is not regulated coefficient by the NRC EMANA0 Radon emanation P 3 NA - Not used Radon exposure is not regulated fraction by the NRC MTLS Source material D - Concrete One homogenous region is assumed SHIELDING PARAMETERS DSTH Shielding thickness P, B 2 S cm 0 Shielding is not used in this dose model DSDEN Shielding density P 1 NA g/cm3 2.4 Default value but not used in this dose model Page 6-224
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-Q, Parameters for Containment Building DCGL Sensitivity Analysis Parameter Parameter Basis for Parameter Name Description Class1 Priority2 Treatment3 Units Value Selection MTLC Shielding material P 3 NA - None Default value but not used in this dose model TRITIUM MODEL PARAMETERS DRYTHICK Dry zone thickness P 3 D cm 0 This model assumes that all bulk material is contaminated H3THICK Wet + dry zone thickness P 2 D cm 1 This parameter represents the depth from the surface of the contaminated material to the deepest point of the contaminated zone, thus the source region thickness.
H3VOLFRACT Volumetric water content P 2 S - Uniform ANL-EAD-03-01, Appendix J distribution H3RMVF Water fraction available P 2 S - Triangular ANL-EAD-03-01, Appendix J for vaporization distribution HUMIDITY Humidity P, B 2 S g/m3 Uniform ANL-EAD-03-01, Appendix J distribution 1
Parameter Classification: P = Physical; B = Behavioral; M = Metabolic 2
1 = high priority parameter, 2 = medium priority parameter, 3 = low priority parameter 3
D = deterministic; S = stochastic; NA = not applicable Page 6-225
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-Q, Parameters for Containment Building DCGL Sensitivity Analysis This page intentionally left blank Page 6-226
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-R, Statistical Distribution Parameters and Sensitive Parameter Results for Containment Building DCGLs Distributions Statistical Parameters2 25% or Assigned 1 3 Parameter Priority Distribution PRCC 75% Parameter 1 2 3 4 Quartile Value Deposition velocity 2 Loguniform 2.7E-06 2.7E-03 - - 0.93 75% 0.000478 Deposition velocity (Fe-55, Ni-63, 2 Loguniform 2.7E-06 2.7E-03 - - -0.62 25% 1.52E-05 Sr-90,Pm-147, Pu-238, Pu-241, &
Cm-244)
Building air exchange rate 2 Truncated lognormal-n 0.4187 0.88 0.001 0.999 -1.00 25% 0.839 Source density (S1) 1 Uniform 2.2 2.6 - - 0.96 75% 2.50 H-3 Source porosity (S1) 2 Uniform 0.04 0.25 - - 0.45 75% 0.197 Source density (S2) 1 Uniform 2.2 2.6 - - 0.18 75% 2.50 H-3 Source porosity (S2) 2 Uniform 0.04 0.25 - - 0.51 75% 0.197 Source density (S3) 1 Uniform 2.2 2.6 - - 0.52 75% 2.50 H-3 Source porosity (S3) 2 Uniform 0.04 0.25 - - 0.47 75% 0.197 Source density (S4) 1 Uniform 2.2 2.6 - - 0.47 75% 2.50 H-3 Source porosity (S4) 2 Uniform 0.04 0.25 - - 0.44 75% 0.197 Source density (S5) 1 Uniform 2.2 2.6 - - 0.79 75% 2.50 H-3 Source porosity (S5) 2 Uniform 0.04 0.25 - - 0.53 75% 0.197 Source density (S6) 1 Uniform 2.2 2.6 - - 0.23 75% 2.50 H-3 Source porosity (S6) 2 Uniform 0.04 0.25 - - 0.42 75% 0.197 Source erosion rate (S6) 2 Triangular 0 5.6E-07 0 - 0.01 No Distribution H-3 Volumetric water content(S1) 2 Uniform 0.04 0.25 - - -0.38 25% 0.0920 H-3 Water fraction available for 2 Triangular 0.5 1.0 0.75 - 0.02 No Distribution vaporization(S1)
H-3 Humidity(S1) 2 Uniform 6.5 13.1 - - -0.16 25% 8.15 H-3 Volumetric water content(S2) 2 Uniform 0.04 0.25 - - -0.45 25% 0.0920 H-3 Water fraction available for 2 Triangular 0.5 1.0 0.75 - 0.03 No Distribution vaporization(S2)
H-3 Humidity(S2) 2 Uniform 6.5 13.1 - - -0.25 25% 8.15 H-3 Volumetric water content(S3) 2 Uniform 0.04 0.25 - - -0.34 25% 0.0920 H-3 Water fraction available for 2 Triangular 0.5 1.0 0.75 - 0.12 75% 0.823 vaporization(S3)
H-3 Humidity(S3) 2 Uniform 6.5 13.1 - - -0.26 25% 8.15 H-3 Volumetric water content(S4) 2 Uniform 0.04 0.25 - - -0.35 25% 0.0920 H-3 Water fraction available for 2 Triangular 0.5 1.0 0.75 - 0.15 75% 0.823 vaporization(S4)
H-3 Humidity(S4) 2 Uniform 6.5 13.1 - - -0.16 25% 8.15 H-3 Volumetric water content(S5) 2 Uniform 0.04 0.25 - - -0.42 25% 0.0920 H-3 Water fraction available for 2 Triangular 0.5 1.0 0.75 - 0.03 No Distribution vaporization(S5)
H-3 Humidity(S5) 2 Uniform 6.5 13.1 - - -0.25 25% 8.15 H-3 Volumetric water content(S6) 2 Uniform 0.04 0.25 - - -0.34 25% 0.0920 H-3 Water fraction available for 2 Triangular 0.5 1.0 0.75 - 0.15 75% 0.823 vaporization(S6)
H-3 Humidity(S6) 2 Uniform 6.5 13.1 - - -0.19 25% 8.15 Page 6-227
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-R, Statistical Distribution Parameters and Sensitive Parameter Results for Containment Building DCGLs Notes:
1 1 = high priority parameter, 2 = medium priority parameter 2
Distributions Statistical Parameter Loguniform: 1 = minimum, 2 = maximum Triangular: 1 = minimum, 2 = maximum, 3 = most likely Uniform: 1 = minimum, 2 = maximum Truncated lognormal-n: 1 = underlying mean value, 2 = underlying standard deviation, 3 = lower quantile, 4 = upper quantile 3
PRCC = Partial ranked correlation coefficient for Time 1 Page 6-228
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-R, Statistical Distribution Parameters and Sensitive Parameter Results for Containment Building DCGLs Radionuclide Specific RESRAD-BUILD Sensitive Parameters Radionuclide H-3 C-14 Na-22 Fe-55 Ni-59 Co-60 Rank Parameter PRCC Parameter PRCC Parameter PRCC Parameter PRCC Parameter PRCC Parameter PRCC 1 LAMBDAT -1.00 LAMBDAT -1.00 DENSI0(S1) 0.85 LAMBDAT -1.00 LAMBDAT -1.00 DENSI0(S1) 0.85 2 H3POROSITY(S5) 0.53 UD 0.60 UD 0.62 UD -0.62 DENSI0(S6) 0.53 UD 0.69 3 H3POROSITY(S2) 0.51 DENSI0(S3) 0.37 DENSI0(S4) 0.59 DENSI0(S3) 0.28 DENSI0(S3) 0.52 DENSI0(S5) 0.65 4 H3POROSITY(S3) 0.47 DENSI0(S6) 0.34 DENSI0(S3) 0.56 DENSI0(S2) 0.26 DENSI0(S2) 0.50 LAMBDAT -0.60 5 H3POROSITY(S1) 0.45 DENSI0(S2) 0.31 DENSI0(S5) 0.54 DENSI0(S1) 0.23 DENSI0(S5) 0.47 DENSI0(S4) 0.59 6 H3VOLFRACT(S2) -0.45 DENSI0(S5) 0.30 DENSI0(S2) 0.52 DENSI0(S4) 0.23 DENSI0(S4) 0.47 DENSI0(S3) 0.56 7 H3POROSITY(S4) 0.44 DENSI0(S4) 0.27 LAMBDAT -0.40 DENSI0(S5) 0.21 DENSI0(S1) 0.39 DENSI0(S2) 0.51 8 H3VOLFRACT(S5) -0.42 DENSI0(S1) 0.16 DENSI0(S6) 0.40 DENSI0(S6) 0.19 DENSI0(S6) 0.32 9 H3POROSITY(S6) 0.42 10 H3VOLFRACT(S1) -0.38 11 H3VOLFRACT(S4) -0.35 12 H3VOLFRACT(S6) -0.34 13 H3VOLFRACT(S3) -0.34 14 HUMIDITY(S3) -0.26 15 HUMIDITY(S2) -0.25 16 HUMIDITY(S5) -0.25 17 DENSI0(S6) 0.23 18 HUMIDITY(S6) -0.19 19 DENSI0(S2) 0.18 20 HUMIDITY(S1) -0.16 21 HUMIDITY(S4) -0.16 22 H3RMV(S4) 0.15 23 H3RMV(S6) 0.15 24 H3RMV(S3) 0.12 Page 6-229
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-R, Statistical Distribution Parameters and Sensitive Parameter Results for Containment Building DCGLs Radionuclide Specific Sensitive RESRAD-BUILD Parameters, Cont.
Radionuclide Ni-63 Sr-90 Nb-94 Tc-99 Ag-108m Sb-125 Rank Parameter PRCC Parameter PRCC Parameter PRCC Parameter PRCC Parameter PRCC Parameter PRCC 1 LAMBDAT -1.00 LAMBDAT -1.00 UD 0.86 LAMBDAT -1.00 UD 0.85 UD 0.58 2 DENSI0(S3) 0.49 DENSI0(S3) 0.47 LAMBDAT -0.76 UD 0.60 LAMBDAT -0.68 DENSI0(S1) 0.55 3 DENSI0(S2) 0.48 DENSI0(S2) 0.45 DENSI0(S1) 0.62 DENSI0(S3) 0.38 DENSI0(S1) 0.55 DENSI0(S3) 0.42 4 DENSI0(S6) 0.44 DENSI0(S6) 0.42 DENSI0(S4) 0.47 DENSI0(S6) 0.35 DENSI0(S4) 0.44 DENSI0(S4) 0.40 5 DENSI0(S5) 0.44 DENSI0(S1) 0.39 DENSI0(S3) 0.43 DENSI0(S2) 0.35 DENSI0(S3) 0.42 LAMBDAT -0.40 6 DENSI0(S4) 0.41 DENSI0(S5) 0.39 DENSI0(S5) 0.33 DENSI0(S4) 0.34 DENSI0(S2) 0.33 DENSI0(S5) 0.37 7 DENSI0(S1) 0.41 DENSI0(S4) 0.39 DENSI0(S2) 0.33 DENSI0(S5) 0.33 DENSI0(S5) 0.33 DENSI0(S2) 0.34 8 UD -0.21 UD -0.31 DENSI0(S6) 0.30 DENSI0(S1) 0.14 DENSI0(S6) 0.26 DENSI0(S6) 0.33 Radionuclide Cs-134 Cs-137 Pm-147 Eu-152 Eu-154 Eu-155 Rank Parameter PRCC Parameter PRCC Parameter PRCC Parameter PRCC Parameter PRCC Parameter PRCC 1 DENSI0(S1) 0.83 UD 0.82 LAMBDAT -1.00 UD 0.76 DENSI0(S1) 0.78 LAMBDAT -0.97 2 UD 0.59 DENSI0(S1) 0.62 UD -0.62 DENSI0(S1) 0.73 LAMBDAT -0.75 UD 0.83 3 DENSI0(S5) 0.57 LAMBDAT -0.60 DENSI0(S3) 0.26 LAMBDAT -0.71 UD 0.74 DENSI0(S3) 0.14 4 DENSI0(S3) 0.56 DENSI0(S4) 0.43 DENSI0(S2) 0.25 DENSI0(S4) 0.48 DENSI0(S5) 0.55 5 DENSI0(S4) 0.56 DENSI0(S5) 0.42 DENSI0(S4) 0.25 DENSI0(S5) 0.47 DENSI0(S4) 0.52 6 DENSI0(S2) 0.53 DENSI0(S3) 0.40 DENSI0(S1) 0.22 DENSI0(S3) 0.43 DENSI0(S3) 0.50 7 LAMBDAT -0.44 DENSI0(S2) 0.37 DENSI0(S5) 0.21 DENSI0(S2) 0.39 DENSI0(S2) 0.44 8 DENSI0(S6) 0.38 DENSI0(S6) 0.28 DENSI0(S6) 0.17 DENSI0(S6) 0.30 DENSI0(S6) 0.32 Radionuclide Np-237 Pu-238 Pu-239 Pu-240 Pu-241 Am-241 Rank Parameter PRCC Parameter PRCC Parameter PRCC Parameter PRCC Parameter PRCC Parameter PRCC 1 LAMBDAT -1.00 LAMBDAT -1.00 LAMBDAT -1.00 LAMBDAT -1.00 LAMBDAT -1.00 LAMBDAT -1.00 2 DENSI0(S6) 0.53 DENSI0(S3) 0.48 DENSI0(S3) 0.52 DENSI0(S5) 0.48 UD -0.58 DENSI0(S3) 0.52 3 DENSI0(S3) 0.51 DENSI0(S5) 0.46 DENSI0(S6) 0.51 DENSI0(S2) 0.47 DENSI0(S2) 0.35 DENSI0(S6) 0.50 4 DENSI0(S2) 0.48 DENSI0(S1) 0.44 DENSI0(S2) 0.48 DENSI0(S3) 0.46 DENSI0(S3) 0.35 DENSI0(S2) 0.49 5 DENSI0(S5) 0.47 DENSI0(S4) 0.42 DENSI0(S5) 0.46 DENSI0(S1) 0.44 DENSI0(S1) 0.31 DENSI0(S4) 0.47 6 DENSI0(S4) 0.46 DENSI0(S2) 0.42 DENSI0(S4) 0.46 DENSI0(S4) 0.44 DENSI0(S4) 0.27 DENSI0(S5) 0.45 7 DENSI0(S1) 0.38 DENSI0(S6) 0.41 DENSI0(S1) 0.38 DENSI0(S6) 0.40 DENSI0(S5) 0.27 DENSI0(S1) 0.39 8 UD -0.32 POROSITY(S6) 0.13 DENSI0(S6) 0.25 Page 6-230
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-R, Statistical Distribution Parameters and Sensitive Parameter Results for Containment Building DCGLs Radionuclide Specific Sensitive RESRAD-BUILD Parameters, Cont.
Radionuclide Pu-242 Cm-244 Rank Parameter PRCC Parameter PRCC Parameter PRCC Parameter PRCC Parameter PRCC Parameter PRCC 1 LAMBDAT -1.00 LAMBDAT -1.00 2 DENSI0(S5) 0.48 UD -0.56 3 DENSI0(S2) 0.47 DENSI0(S3) 0.39 4 DENSI0(S3) 0.46 DENSI0(S5) 0.39 5 DENSI0(S1) 0.44 DENSI0(S1) 0.34 6 DENSI0(S4) 0.44 DENSI0(S4) 0.32 7 DENSI0(S6) 0.41 DENSI0(S6) 0.30 8 POROSITY(S6) 0.12 DENSI0(S2) 0.27 Parameter Code Explanation DENSI0--Source density H3RMV--Water fraction available for vaporization (for H-3)
H3VOLFRACT--Volumetric water content (for H-3)
LAMBDAT--Building air exchange rate POROSITY--Total porosity UD--Deposition velocity (S#) Source number Page 6-231
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Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-S, Parameters for Surface Soil Area Factor Dose Modeling Probabilistic Analysis Parameter Parameter Class1 Priority2 Units Basis for Parameter Selection Value Contamination Thickness of P 2 m 0.15 Assigned value contaminated zone Area of contaminated P 2 m2 10,000, 3,000, Example contaminated zone areas provided in NUREG-1505 for zone 1,000, 300, calculation of area factors 100, 30, 10, 3, 1
Shape of the P 3 - Circular Default RESRAD v6.22 Physical priority 3 value acceptable for contaminated zone this evaluation Initial concentration of P 2 pCi/g 1 Input value selected to provide probabilistic DCF results in units of principal millirem/year per pCi/g radionuclides in soil Initial concentration of P 3 pCi/L 0 Not Used for this evaluation radionuclides present in ground water Leach rate P 3 1/yr 0 Default Physical value to invoke the calculation of this parameter via a first-order leaching model that uses the value of the soil/water distribution coefficient in the contaminated zone Solubility limit P 3 mol/L 0 Default Physical value - not used by RESRAD v6.22 with leach rate flag set to 0 Time since placement P 3 yr 0 Default RESRAD v6.22 Physical priority 3 value acceptable for of material this evaluation Times for calculation P 3 yr 1, 3, 10, 30, Default RESRAD v6.22 Physical priority 3 value acceptable for 100, 300, 1000 this evaluation Contaminated zone P 1 g/cm3 1.47 Deterministic sensitive parameter value determined in density DTBD-05-005 Contaminated zone P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for C-14 distribution Contaminated zone P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Ni-63 distribution Page 6-233
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-S, Parameters for Surface Soil Area Factor Dose Modeling Probabilistic Analysis Parameter Parameter Class1 Priority2 Units Basis for Parameter Selection Value Contaminated zone P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Co-60 distribution Contaminated zone P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Sr-90 distribution Contaminated zone P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Cs- distribution 134 Contaminated zone P 1 cm3/g 2130 Deterministic sensitive parameter value determined in distribution DTBD-05-005 coefficient for Cs-137 Use plant/soil ratio NA 3 Check No For purposes of this evaluation, the code should not be allowed to box calculate the distribution coefficient from the plant root uptake factors because statistical distributions are used for distribution coefficients Contaminated zone P 3 - 0.2 Default RESRAD v6.22 Priority 3 Physical priority 3 value field capacity acceptable for this evaluation Contaminated zone P,B 2 m/yr Continuous NUREG/CR-6697, Attachment C erosion rate logarithmic distribution Contaminated zone P 2 - Truncated NUREG/CR-6697, Attachment C total porosity normal distribution Contaminated zone P 2 m/yr Bounded NUREG/CR-6697, Attachment C, Table 3.4-1 for silt hydraulic lognormal-n conductivity distribution Contaminated zone b P 2 - Bounded NUREG/CR-6697, Attachment C parameter lognormal-n distribution Carbon-Model Parameters Thickness of evasion P 2 m Triangular NUREG/CR-6697, Attachment C layer of C-14 in soil distribution Page 6-234
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-S, Parameters for Surface Soil Area Factor Dose Modeling Probabilistic Analysis Parameter Parameter Class1 Priority2 Units Basis for Parameter Selection Value C-14 evasion flux rate P 3 1/s 7E-07 Default RESRAD v6.22 Physical priority 3 value acceptable for from soil this evaluation C-12 concentration in P 3 g/cm3 2E-05 Default RESRAD v6.22 Physical priority 3 value acceptable for local water this evaluation C-12 concentration in P 3 g/g 0.03 Default RESRAD v6.22 Physical priority 3 value acceptable for contaminated soil this evaluation Fraction of vegetation P 3 - 0.02 Default RESRAD v6.22 Physical priority 3 value acceptable for carbon absorbed this evaluation from soil Fraction of vegetation P 3 - 0.98 Default RESRAD v6.22 Physical priority 3 value acceptable for carbon absorbed this evaluation from air C-12 evasion flux rate P 3 1/s 1E-10 Default RESRAD v6.22 Physical priority 3 value acceptable for from soil this evaluation Grain fraction in beef B 3 - 0.8 Default RESRAD v6.22 Physical priority 3 value acceptable for cattle feed this evaluation Grain fraction in milk B 3 - 0.2 Default RESRAD v6.22 Physical priority 3 value acceptable for cow feed this evaluation DCF correction factor P 3 - 88.94 Default RESRAD v6.22 Physical priority 3 value acceptable for for gaseous forms of this evaluation C-14 Soil Cover depth P 2 m 0 The contamination is assumed to be on surface soil Density of cover P 1 g/cm3 Not Used A cover is not used in this evaluation material Cover total porosity P 3 - Not Used Radon is not used in this evaluation Cover volumetric P 3 - Not Used Radon is not used in this evaluation water content Cover radon diffusion P 3 m2/s Not Used Radon is not used in this evaluation coefficient Cover erosion rate P,B 2 m/yr Not Used A cover is not used in this evaluation Number of P 3 - 4 Simplified hydrogeological model assumption unsaturated zones Unsaturated zone 1 P 1 m 0.305 Thickness of silt layer above the sand layer thickness Page 6-235
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-S, Parameters for Surface Soil Area Factor Dose Modeling Probabilistic Analysis Parameter Parameter Class1 Priority2 Units Basis for Parameter Selection Value Unsaturated zone 1 P 2 g/cm3 Normal NUREG/CR-6767, Attachment C, Table C-1 distribution for silt density distribution Unsaturated zone 1 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for C-14 distribution Unsaturated zone 1 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Ni-63 distribution Unsaturated zone 1 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Co-60 distribution Unsaturated zone 1 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Sr-90 distribution Unsaturated zone 1 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Cs- distribution 134 Unsaturated zone 1 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Cs- distribution 137 Unsaturated zone 1 P 2 - Truncated NUREG/CR-6697, Attachment C, Table 3.2-1 distribution for silt total porosity normal distribution Unsaturated zone 1 P 2 - Truncated NUREG/CR-6767, Attachment A, Table A-7 distribution for silt effective porosity normal distribution Unsaturated zone 1 P 3 - Truncated NUREG/CR-6767, Attachment A, Table A-7 distribution for silt field capacity normal distribution Unsaturated zone 1 P 2 m/yr Bounded NUREG/CR-6697, Attachment C, Table 3.4-1 for silt hydraulic lognormal-n conductivity distribution Page 6-236
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-S, Parameters for Surface Soil Area Factor Dose Modeling Probabilistic Analysis Parameter Parameter Class1 Priority2 Units Basis for Parameter Selection Value Unsaturated zone 1 P 2 - Bounded NUREG/CR-6697, Attachment C, Table 3.5-1 for silt soil-specific b lognormal-n parameter distribution Unsaturated zone 2 P 1 m 3.05 Thickness of fine sand layer above the siltstone layer thickness Unsaturated zone 2 P 2 g/cm3 Normal NUREG/CR-6767, Attachment C, Table C-1 distribution for sand density distribution Unsaturated zone 2 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for C-14 distribution Unsaturated zone 2 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Ni-63 distribution Unsaturated zone 2 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Co-60 distribution Unsaturated zone 2 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Sr-90 distribution Unsaturated zone 2 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Cs- distribution 134 Unsaturated zone 2 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Cs- distribution 137 Unsaturated zone 2 P 2 - Truncated NUREG/CR-6697, Attachment C, Table 3.2-1 distribution for sand total porosity normal distribution Unsaturated zone 2 P 2 - Truncated NUREG/CR-6767, Attachment A, Table A-1 distribution for sand effective porosity normal distribution Page 6-237
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-S, Parameters for Surface Soil Area Factor Dose Modeling Probabilistic Analysis Parameter Parameter Class1 Priority2 Units Basis for Parameter Selection Value Unsaturated zone 2 P 3 - Truncated NUREG/CR-6767, Attachment A, Table A-1 distribution for sand field capacity normal distribution Unsaturated zone 2 P 2 m/yr Bounded NUREG/CR-6697, Attachment C, Table 3.4-1 for sand hydraulic lognormal-n conductivity distribution Unsaturated zone 2 P 2 - Bounded NUREG/CR-6697, Attachment C, Table 3.5-1 for sand soil-specific b lognormal-n parameter distribution Unsaturated zone 3 P 1 m 25.60 Thickness of siltstone layer thickness Unsaturated zone 3 P 2 g/cm3 Normal NUREG/CR-6767, Attachment C, Table C-1 distribution for silt density distribution Unsaturated zone 3 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for C-14 distribution Unsaturated zone 3 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Ni-63 distribution Unsaturated zone 3 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Co-60 distribution Unsaturated zone 3 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Sr-90 distribution Unsaturated zone 3 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Cs- distribution 134 Unsaturated zone 3 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Cs- distribution 137 Unsaturated zone 3 P 2 - 0.35 RESRAD Data Collection Handbook Table 3.2 arithmetic mean for total porosity medium siltstone Page 6-238
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-S, Parameters for Surface Soil Area Factor Dose Modeling Probabilistic Analysis Parameter Parameter Class1 Priority2 Units Basis for Parameter Selection Value Unsaturated zone 3 P 2 - 0.12 RESRAD Data Collection Handbook Table 3.2 arithmetic mean for effective porosity medium siltstone Unsaturated zone 3 P 3 - 0.23 Total porosity minus effective porosity per RESRAD Data field capacity Collection Handbook, Section 4.1 Unsaturated zone 3 P 2 m/yr Bounded NUREG/CR-6697, Attachment C, Table 3.4-1 for silt hydraulic lognormal-n conductivity Unsaturated zone 3 P 2 - Bounded NUREG/CR-6697, Attachment C, Table 3.5-1 for silt soil-specific b lognormal-n parameter distribution Unsaturated zone 4 P 1 m 10.82 Thickness of unsaturated sandstone layer thickness Unsaturated zone 4 P 2 g/cm3 Normal NUREG/CR-6767, Attachment C, Table C-1 distribution for sand density distribution Unsaturated zone 4 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for C-14 distribution Unsaturated zone 4 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Ni-63 distribution Unsaturated zone 4 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Co-60 distribution Unsaturated zone 4 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Sr-90 distribution Unsaturated zone 4 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Cs- distribution 134 Unsaturated zone 4 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Cs- distribution 137 Page 6-239
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-S, Parameters for Surface Soil Area Factor Dose Modeling Probabilistic Analysis Parameter Parameter Class1 Priority2 Units Basis for Parameter Selection Value Unsaturated zone 4 P 2 - 0.35 RESRAD Data Collection Handbook Table 3.2 arithmetic mean for total porosity sandstone Unsaturated zone 4 P 2 - 0.27 RESRAD Data Collection Handbook Table 3.2 arithmetic mean for effective porosity sandstone Unsaturated zone 4 P 3 - 0.07 Total porosity minus effective porosity per RESRAD Data field capacity Collection Handbook, Section 4.1 Unsaturated zone 4 P 2 m/yr 10 Upper boundary value from RESRAD Data Collection Handbook, hydraulic Table 5.1 for sandstone conductivity Unsaturated zone 4 P 2 - Bounded NUREG/CR-6697, Attachment C, Table 3.5-1 for sand soil-specific b lognormal-n parameter distribution Water Density of saturated P 1 g/cm3 Normal NUREG/CR-6767, Attachment C, Table C-1 distribution for sand zone distribution Saturated zone P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for C-14 distribution Saturated zone P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Ni-63 distribution Saturated zone P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Co-60 distribution Saturated zone P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Sr-90 distribution Saturated zone P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Cs- distribution 134 Saturated zone P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Cs- distribution 137 Page 6-240
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-S, Parameters for Surface Soil Area Factor Dose Modeling Probabilistic Analysis Parameter Parameter Class1 Priority2 Units Basis for Parameter Selection Value Saturated zone total P 1 - 0.34 RESRAD Data Collection Handbook Table 3.2 arithmetic mean for porosity sandstone Saturated zone P 1 - 0.27 RESRAD Data Collection Handbook Table 3.2 arithmetic mean for effective porosity sandstone Saturated zone field P 3 - 0.07 Total porosity minus effective porosity per RESRAD Data capacity Collection Handbook, Section 4.1 Saturated zone P 1 m/yr 10 Upper boundary value from RESRAD Data Collection Handbook, hydraulic Table 5.1 for sandstone conductivity Saturated zone P 2 - Bounded NUREG/CR-6697, Attachment C hydraulic gradient lognormal-n distribution Saturated zone soil- P 2 - Bounded NUREG/CR-6697, Attachment C specific b parameter lognormal-n distribution Length of P 2 m 113, 61.8, 35.7, Diameter of 10,000, 3,000, 1,000, 300, 100, 30, 10, 3 and 1 m2 contaminated zone 19.5, 11.3, contaminated zones parallel to the 6.18, 3.57, aquifer flow 1.95, 1.13 Water table drop rate P 3 m/yr 0.783 Site specific value applicable to the RSNGS site as reported in the FSAR, Appendix 2C Well-pump intake P 2 m 23 Site specific value applicable to the RSNGS site as reported in the depth (below water FSAR, Appendix 2C table)
Well pumping rate B, P 2 m3/yr Not Used Well pumping rate is not used with the Mass-Balance model for water transport selected - well pumping rate is used to calculated a dilution factor when the Non- dispersion l model is selected.
Model: non-dispersion NA 3 - MB The mass-balance model was chosen as the most conservative or mass balance since it assumes that all of the radionuclides released from the contaminated zone are withdrawn through the well.
Evapotranspiration P 2 - Uniform NUREG/CR-6697, Attachment C coefficient distribution Humidity in air P 3 g/m3 Not Used Not used when the Radon exposure pathway is suppressed Page 6-241
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-S, Parameters for Surface Soil Area Factor Dose Modeling Probabilistic Analysis Parameter Parameter Class1 Priority2 Units Basis for Parameter Selection Value Average annual wind P 2 m/s 3.13 7 mph average annual wind speed for the years of 1930 - 1996 speed reported by the National Climatic Data Center for Stockton, CA (http://www.ncdc.noaa.gov/oa/documentlibrary/wind/wind1996.p df)
Precipitation rate P 2 m/yr 0.38 Mean annual average rainfall measured at Sacramento and Stockton Irrigation mode B 3 - Overhead Behavioral value - ditch irrigation is not the principal method of irrigation in the local region Irrigation rate B 3 m/yr 0.2 Behavioral RESRAD v6.22 default value acceptable for this evaluation Runoff coefficient P 2 - Uniform NUREG/CR-6697, Attachment C distribution Watershed area for P 3 m2 1.00E+07 The entire RSNGS site drains into Clay Creek nearby stream or pond Accuracy for water soil NA 3 - 0.001 Default RESRAD v6.22 priority 3 value acceptable for this computation evaluation Ingestion Fruit, vegetable, and M, B 2 kg/yr Not Used Not used with ingestion exposure pathways suppressed in grain consumption accordance with the Industrial Worker Scenario rate Leafy vegetable M, B 3 kg/yr Not Used Not used with ingestion exposure pathways suppressed in consumption accordance with the Industrial Worker Scenario Milk consumption M, B 2 L/yr Not Used Not used with ingestion exposure pathways suppressed in accordance with the Industrial Worker Scenario Meat and poultry M, B 3 kg/yr Not Used Not used with ingestion exposure pathways suppressed in consumption accordance with the Industrial Worker Scenario Fish consumption rate M, B 3 kg/yr Not Used Not used with ingestion exposure pathways suppressed in accordance with the Industrial Worker Scenario Other seafood M, B 3 kg/yr Not Used Not used with ingestion exposure pathways suppressed in consumption rate accordance with the Industrial Worker Scenario Aquatic food B, P 2 - Not Used Not used with ingestion exposure pathways suppressed in contaminated accordance with the Industrial Worker Scenario fraction Page 6-242
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-S, Parameters for Surface Soil Area Factor Dose Modeling Probabilistic Analysis Parameter Parameter Class1 Priority2 Units Basis for Parameter Selection Value Soil ingestion rate M, B 2 g/yr Triangular NUREG/CR-6697, Attachment C distribution Drinking water intake M, B 2 L/yr Truncated NUREG/CR-6697, Attachment C lognormal-n distribution Storage time for fruits, B 3 d Not Used Not used with ingestion exposure pathways suppressed in non-leafy accordance with the Industrial Worker Scenario vegetables, and grain Storage time for leafy B 3 d Not Used Not used with ingestion exposure pathways suppressed in vegetables accordance with the Industrial Worker Scenario Storage time for milk B 3 d Not Used Not used with ingestion exposure pathways suppressed in accordance with the Industrial Worker Scenario Storage time for meat B 3 d Not Used Not used with ingestion exposure pathways suppressed in accordance with the Industrial Worker Scenario Storage time for fish B 3 d Not Used Not used with ingestion exposure pathways suppressed in accordance with the Industrial Worker Scenario Storage time for B 3 d Not Used Not used with ingestion exposure pathways suppressed in crustacea and accordance with the Industrial Worker Scenario mollusks Storage time for well B 3 d 1 Behavioral RESRAD v6.22 default priority 3 value acceptable for water this evaluation Storage time for B 3 d 1 Behavioral RESRAD v6.22 default priority 3 value acceptable for surface water this evaluation Storage time for B 3 d Not Used Not used with ingestion exposure pathways suppressed in livestock fodder accordance with the Industrial Worker Scenario Drinking water B, P 3 - 1 Default RESRAD v6.22 Behavioral/Physical priority 3 value contaminated acceptable for this evaluation fraction Household water B, P 3 - Not Used Not used when the radon exposure pathway is suppressed contaminated fraction Livestock water B, P 3 - Not Used Not used with ingestion exposure pathways suppressed in contaminated accordance with the Industrial Worker Scenario fraction Page 6-243
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-S, Parameters for Surface Soil Area Factor Dose Modeling Probabilistic Analysis Parameter Parameter Class1 Priority2 Units Basis for Parameter Selection Value Irrigation water B, P 3 - Not Used Not used with ingestion exposure pathways suppressed in contaminated accordance with the Industrial Worker Scenario fraction Plant food B, P 3 - Not Used Not used with ingestion exposure pathways suppressed in contaminated accordance with the Industrial Worker Scenario fraction Meat contaminated B, P 3 - Not Used Not used with ingestion exposure pathways suppressed in fraction accordance with the Industrial Worker Scenario Milk contaminated B, P 3 - Not Used Not used with ingestion exposure pathways suppressed in fraction accordance with the Industrial Worker Scenario Livestock fodder M 3 kg/d Not Used Not used with meat and milk exposure pathways suppressed in intake rate for meat accordance with the Industrial Worker Scenario Livestock fodder M 3 kg/d Not Used Not used with meat and milk exposure pathways suppressed in intake rate for milk accordance with the Industrial Worker Scenario Livestock water intake M 3 L/d Not Used Not used with meat and milk exposure pathways suppressed in rate for meat accordance with the Industrial Worker Scenario Livestock water intake M 3 L/d Not Used Not used with meat and milk exposure pathways suppressed in rate for milk accordance with the Industrial Worker Scenario Livestock intake of soil M 3 kg/d Not Used Not used with meat and milk exposure pathways suppressed in accordance with the Industrial Worker Scenario Mass loading for foliar P 3 g/m3 Not Used Not used with vegetation exposure pathways suppressed in deposition accordance with the Industrial Worker Scenario Depth of soil mixing P 2 m Triangular NUREG/CR-6697, Attachment C layer distribution Depth of roots P 1 m Not Used Not used with vegetation exposure pathways suppressed in accordance with the Industrial Worker Scenario Groundwater fractional B, P 3 - 1 Default RESRAD v6.22 Behavioral/Physical priority 3 value usage for drinking acceptable for this evaluation water Groundwater fractional B, P 3 - Not Used Not used when the radon exposure pathway is suppressed usage for household water Groundwater fractional B, P 3 - Not Used Not used with ingestion exposure pathways suppressed in usage for livestock accordance with the Industrial Worker Scenario water Page 6-244
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-S, Parameters for Surface Soil Area Factor Dose Modeling Probabilistic Analysis Parameter Parameter Class1 Priority2 Units Basis for Parameter Selection Value Groundwater fractional B, P 3 - Not Used Not used with ingestion exposure pathways suppressed in usage for irrigation accordance with the Industrial Worker Scenario water Wet weight crop yield P 2 kg/m2 Not Used Not used with vegetation exposure pathways suppressed in for non-leafy plants accordance with the Industrial Worker Scenario Wet weight crop yield P 3 kg/m2 Not Used Not used with vegetation exposure pathways suppressed in for leafy plants accordance with the Industrial Worker Scenario Wet weight crop yield P 3 kg/m2 Not Used Not used with vegetation exposure pathways suppressed in for fodder accordance with the Industrial Worker Scenario Length of growing P 3 yr Not Used Not used with vegetation exposure pathways suppressed in season for non-leafy accordance with the Industrial Worker Scenario vegetables Length of growing P 3 yr Not Used Not used with vegetation exposure pathways suppressed in season for leafy accordance with the Industrial Worker Scenario vegetables Length of growing P 3 yr Not Used Not used with vegetation exposure pathways suppressed in season for fodder accordance with the Industrial Worker Scenario Translocation factor P 3 - Not Used Not used with vegetation exposure pathways suppressed in for non-leafy accordance with the Industrial Worker Scenario vegetables Translocation factor P 3 - Not Used Not used with vegetation exposure pathways suppressed in for leafy vegetables accordance with the Industrial Worker Scenario Translocation factor P 3 - Not Used Not used with vegetation exposure pathways suppressed in for fodder accordance with the Industrial Worker Scenario Weathering removal P 2 1/yr Not Used Not used with vegetation exposure pathways suppressed in constant accordance with the Industrial Worker Scenario Dry foliar interception P 3 - Not Used Not used with vegetation exposure pathways suppressed in fraction for non-leafy accordance with the Industrial Worker Scenario vegetables Dry foliar interception P 3 - Not Used Not used with vegetation exposure pathways suppressed in fraction for leafy accordance with the Industrial Worker Scenario vegetables Dry foliar interception P 3 - Not Used Not used with vegetation exposure pathways suppressed in fraction for fodder accordance with the Industrial Worker Scenario Page 6-245
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-S, Parameters for Surface Soil Area Factor Dose Modeling Probabilistic Analysis Parameter Parameter Class1 Priority2 Units Basis for Parameter Selection Value Wet foliar interception P 3 - Not Used Not used with vegetation exposure pathways suppressed in fraction for non-leafy accordance with the Industrial Worker Scenario vegetables Wet foliar interception P 2 - Not Used Not used with vegetation exposure pathways suppressed in fraction for leafy accordance with the Industrial Worker Scenario vegetables Wet foliar interception P 3 - Not Used Not used with vegetation exposure pathways suppressed in fraction for fodder accordance with the Industrial Worker Scenario Slope factor - external M 3 (risk/yr)/ Nuclide specific Metabolic RESRAD v6.22 default priority 3 value acceptable for (pCi/g) this evaluation Slope factor - M 3 risk/pCi Nuclide specific Metabolic RESRAD v6.22 default priority 3 value acceptable for inhalation this evaluation Slope factor - M 3 risk/pCi Nuclide specific Metabolic RESRAD v6.22 default priority 3 value acceptable for ingestion this evaluation Plant transfer factor P 1 - Nuclide specific Not used with ingestion exposure pathways suppressed in
- Not Used accordance with the Industrial Worker Scenario Meat transfer factor P 2 (pCi/kg)/ Nuclide specific Not used with ingestion exposure pathways suppressed in (pCi/d) - Not Used accordance with the Industrial Worker Scenario Milk transfer factor P 2 (pCi/L)/ Nuclide specific Not used with ingestion exposure pathways suppressed in (pCi/d) - Not Used accordance with the Industrial Worker Scenario Bioaccumulation factor P 2 (pCi/kg)/ Nuclide specific Not used with ingestion exposure pathways suppressed in for fish (pCi/L) - Not Used accordance with the Industrial Worker Scenario Bioaccumulation factor P 3 (pCi/kg)/ Nuclide specific Not used with ingestion exposure pathways suppressed in for crustacea and (pCi/L) - Not Used accordance with the Industrial Worker Scenario mollusks Occupancy (Inhalation & External Parameters)
Inhalation rate M, B 3 m3/yr Triangular NUREG/CR-6697, Attachment C distribution Inhalation dose M 3 mrem/pCi Nuclide specific Metabolic RESRAD v6.22 default priority 3 value acceptable for conversion factors this evaluation Ingestion dose M 3 mrem/pCi Nuclide specific Metabolic RESRAD v6.22 default priority 3 value acceptable for conversion factors this evaluation Mass loading for P, B 2 g/m3 Continuous NUREG/CR-6697, Attachment C inhalation linear distribution Page 6-246
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-S, Parameters for Surface Soil Area Factor Dose Modeling Probabilistic Analysis Parameter Parameter Class1 Priority2 Units Basis for Parameter Selection Value Indoor dust filtration P, B 2 - Uniform NUREG/CR-6697, Attachment C factor distribution External gamma P 2 - 0.397 Deterministic sensitive parameter value determined in shielding factor DTBD-05-005 Building foundation P 3 m Not Used The Radon Exposure Pathway is not used thickness Building foundation P 3 g/m3 Not Used The Radon Exposure Pathway is not used bulk density Building foundation P 3 - Not Used The Radon Exposure Pathway is not used total porosity Building foundation P 3 - Not Used The Radon Exposure Pathway is not used volumetric water content Building foundation P 3 m2/s Not Used The Radon Exposure Pathway is not used radon diffusion coefficient Contaminated soil P 3 m2/s Not Used The Radon Exposure Pathway is not used zone radon diffusion coefficient Radon vertical P 3 m Not Used The Radon Exposure Pathway is not used dimension of mixing Building air exchange P, B 3 1/hr Not Used The Radon Exposure Pathway is not used rate Building (room) height P 3 m Not Used The Radon Exposure Pathway is not used Building indoor area P 3 - Not Used The Radon Exposure Pathway is not used factor Foundation depth P 3 m Not Used The Radon Exposure Pathway is not used below ground surface Radon-222 emanation P 3 - Not Used The Radon Exposure Pathway is not used coefficient Radon-220 emanation P 3 - Not Used The Radon Exposure Pathway is not used coefficient Indoor time fraction B 3 - 0.114 50% of a work year (2000 hrs.) spent inside an industrial facility Page 6-247
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-S, Parameters for Surface Soil Area Factor Dose Modeling Probabilistic Analysis Parameter Parameter Class1 Priority2 Units Basis for Parameter Selection Value Outdoor time fraction B 3 - 0.114 50% of a work year (2000 hrs.) spent outside at an industrial facility Exposure duration B 3 yr 30 Behavioral RESRAD v6.22 default value 1
Parameter Classification: P = Physical; B = Behavioral; M = Metabolic 2
1 = high priority parameter, 2 = medium priority parameter, 3 = low priority parameter Page 6-248
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological April 2006 Criteria for License Termination Appendix 6-T, Surface Soil Area Factor Dose Modeling Distribution Parameters Distributions Statistical Parameters2 1
Parameter Priority Distribution 1 2 3 4 Density of saturated zone 1 Normal 1.578 0.158 - -
Contaminated zone distribution 1 Truncated lognormal-n 2.40 3.22 0.001 0.999 coefficient for C-14 Contaminated zone distribution 1 Truncated lognormal-n 6.05 1.46 0.001 0.999 coefficient for Ni-63 Contaminated zone distribution 1 Truncated lognormal-n 5.46 2.53 0.001 0.999 coefficient for Co-60 Contaminated zone distribution 1 Truncated lognormal-n 3.45 2.12 0.001 0.999 coefficient for Sr-90 Contaminated zone distribution 1 Truncated lognormal-n 6.10 2.33 0.001 0.999 coefficient for Cs-134 Unsaturated zone 1 distribution 1 Truncated lognormal-n 2.40 3.22 0.001 0.999 coefficient for C-14 Unsaturated zone 1 distribution 1 Truncated lognormal-n 6.05 1.46 0.001 0.999 coefficient for Ni-63 Unsaturated zone 1 distribution 1 Truncated lognormal-n 5.46 2.53 0.001 0.999 coefficient for Co-60 Unsaturated zone 1 distribution 1 Truncated lognormal-n 3.45 2.12 0.001 0.999 coefficient for Sr-90 Unsaturated zone 1 distribution 1 Truncated lognormal-n 6.10 2.33 0.001 0.999 coefficient for Cs-134 Unsaturated zone 1 distribution 1 Truncated lognormal-n 6.10 2.33 0.001 0.999 coefficient for Cs-137 Unsaturated zone 2 distribution 1 Truncated lognormal-n 2.40 3.22 0.001 0.999 coefficient for C-14 Unsaturated zone 2 distribution 1 Truncated lognormal-n 6.05 1.46 0.001 0.999 coefficient for Ni-63 Unsaturated zone 2 distribution 1 Truncated lognormal-n 5.46 2.53 0.001 0.999 coefficient for Co-60 Unsaturated zone 2 distribution 1 Truncated lognormal-n 3.45 2.12 0.001 0.999 coefficient for Sr-90 Unsaturated zone 2 distribution 1 Truncated lognormal-n 6.10 2.33 0.001 0.999 coefficient for Cs-134 Unsaturated zone 2 distribution 1 Truncated lognormal-n 6.10 2.33 0.001 0.999 coefficient for Cs-137 Unsaturated zone 3 distribution 1 Truncated lognormal-n 2.40 3.22 0.001 0.999 coefficient for C-14 Unsaturated zone 3 distribution 1 Truncated lognormal-n 6.05 1.46 0.001 0.999 coefficient for Ni-63 Unsaturated zone 3 distribution 1 Truncated lognormal-n 5.46 2.53 0.001 0.999 coefficient for Co-60 Unsaturated zone 3 distribution 1 Truncated lognormal-n 3.45 2.12 0.001 0.999 coefficient for Sr-90 Unsaturated zone 3 distribution 1 Truncated lognormal-n 6.10 2.33 0.001 0.999 coefficient for Cs-134 Unsaturated zone 3 distribution 1 Truncated lognormal-n 6.10 2.33 0.001 0.999 coefficient for Cs-137 Unsaturated zone 4 distribution 1 Truncated lognormal-n 2.40 3.22 0.001 0.999 coefficient for C-14 Unsaturated zone 4 distribution 1 Truncated lognormal-n 6.05 1.46 0.001 0.999 coefficient for Ni-63 Unsaturated zone 4 distribution 1 Truncated lognormal-n 5.46 2.53 0.001 0.999 coefficient for Co-60 Unsaturated zone 4 distribution 1 Truncated lognormal-n 3.45 2.12 0.001 0.999 coefficient for Sr-90 Unsaturated zone 4 distribution 1 Truncated lognormal-n 6.10 2.33 0.001 0.999 coefficient for Cs-134 Unsaturated zone 4 distribution 1 Truncated lognormal-n 6.10 2.33 0.001 0.999 coefficient for Cs-137 Page 6-249
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological April 2006 Criteria for License Termination Appendix 6-T, Surface Soil Area Factor Dose Modeling Distribution Parameters Distributions Statistical Parameters2 1
Parameter Priority Distribution 1 2 3 4 Saturated zone distribution 1 Truncated lognormal-n 2.40 3.22 0.001 0.999 coefficient for C-14 Saturated zone distribution 1 Truncated lognormal-n 6.05 1.46 0.001 0.999 coefficient for Ni-63 Saturated zone distribution 1 Truncated lognormal-n 5.46 2.53 0.001 0.999 coefficient for Co-60 Saturated zone distribution 1 Truncated lognormal-n 3.45 2.12 0.001 0.999 coefficient for Sr-90 Saturated zone distribution 1 Truncated lognormal-n 6.10 2.33 0.001 0.999 coefficient for Cs-134 Saturated zone distribution 1 Truncated lognormal-n 6.10 2.33 0.001 0.999 coefficient for Cs-137 Contaminated zone b parameter 2 Bounded lognormal-n 1.06 0.66 0.5 30 3
Contaminated zone erosion rate 2 Continuous logarithmic Default - - -
Contaminated zone total porosity 2 Truncated normal 0.425 0.0867 0.001 0.999 Contaminated zone hydraulic 2 Bounded lognormal-n 2.66 0.475 3.302 62.2 conductivity Depth of soil mixing layer 2 Triangular 0.0 0.6 0.15 -
Drinking water intake 2 Truncated lognormal-n 6.015 0.489 0.001 0.999 Evapotranspiration coefficient 2 Uniform 0.5 0.75 - -
Indoor dust filtration factor 2 Uniform 0.15 0.95 - -
3 Mass loading for inhalation 2 Continuous linear Default - - -
Runoff coefficient 2 Uniform 0.1 0.8 - -
Saturated zone b parameter 2 Bounded lognormal-n 1.06 0.66 0.5 30 Saturated zone hydraulic gradient 2 Bounded lognormal-n -5.11 1.77 7E-05 0.5 Soil ingestion rate 2 Triangular 0 36.5 18.3 -
Unsaturated zone 1 density 2 Normal 1.33 0.202 - -
Unsaturated zone 1 effective 2 Truncated normal 0.425 0.110 0.0839 0.766 porosity Unsaturated zone 1 hydraulic 2 Bounded lognormal-n 2.66 0.475 3.302 62.2 conductivity Unsaturated zone 1 b parameter 2 Bounded lognormal-n 1.16 0.140 2.06 4.89 Unsaturated zone 1 total porosity 2 Truncated normal 0.46 0.11 0.1161 0.7959 Unsaturated zone 2 density 2 Normal 1.578 0.158 - -
Unsaturated zone 2 effective 2 Truncated normal 0.383 0.0610 0.195 0.572 porosity Unsaturated zone 2 hydraulic 2 Bounded lognormal-n 1.398 1.842 110 5870 conductivity Unsaturated zone 2 b parameter 2 Bounded lognormal-n -0.0253 0.216 0.501 1.90 Unsaturated zone 2 total porosity 2 Truncated normal 0.43 0.06 0.2446 0.6154 Unsaturated zone 3 density 2 Normal 1.33 0.202 - -
Unsaturated zone 3 hydraulic 2 Bounded lognormal-n 2.66 0.475 3.302 62.2 conductivity Unsaturated zone 3 b parameter 2 Bounded lognormal-n 1.16 0.140 2.06 4.89 Unsaturated zone 4 density 2 Normal 1.578 0.158 - -
Unsaturated zone 4 hydraulic 2 Bounded lognormal-n 1.398 1.842 110 5870 conductivity Unsaturated zone 4 b parameter 2 Bounded lognormal-n -0.0253 0.216 0.501 1.90 Thickness of evasion layer of C-14 in 2 Triangular 0.5 1.0 0.75 -
soil Unsaturated zone 1 field capacity 3 Truncated normal 0.236 0.0578 0.0575 0.415 Unsaturated zone 2 field capacity 3 Truncated normal 0.0607 0.0150 0.0280 0.124 Inhalation rate 3 Triangular 4,380 13,100 8,400 -
Notes:
1 1 = high priority parameter, 2 = medium priority parameter Page 6-250
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological April 2006 Criteria for License Termination Appendix 6-T, Surface Soil Area Factor Dose Modeling Distribution Parameters 2
Distributions Statistical Parameter Bounded lognormal-n: 1 = underlying mean value, 2 = underlying standard deviation, 3 = lower limit, 4
= upper limit Lognormal: 1 = mean, 2 = error factor Normal: 1 = mean, 2 = standard deviation Triangular: 1 = minimum, 2 = maximum, 3 = most likely Truncated lognormal-n: 1 = underlying mean value, 2 = underlying standard deviation, 3 = lower quantile, 4 = upper quantile Truncated normal: 1 = mean, 2 = standard deviation, 3 = lower quantile, 4 = upper quantile Uniform: 1 = minimum, 2 = maximum 3
Default RESRAD v6.22 distribution parameters were used Page 6-251
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological April 2006 Criteria for License Termination Appendix 6-T, Surface Soil Area Factor Dose Modeling Distribution Parameters This page intentionally left blank Page 6-252
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-U, Parameters for Structural Surface Area Factor Derivation Parameter Parameter Basis for Parameter Name Description Class1 Priority2 Treatment3 Units Value Selection TIME PARAMETERS TTIME Exposure duration B 3 D d 365.25 NUREG/CR-5512, Vol. 1 FTIN Indoor fraction B 2 D - 0.267 NUREG/CR-5512, Vol. 3 Section 5.2.2.4 to match the 97.4 d/yr time in the building. This is the time the average member of the group spends in the building.
NTIME Number of times for P 3 D - 2 RESRAD-BUILD current default calculation Physical priority 3 value acceptable for this evaluation DOSE_TIME Time P 3 D yr 1 NUREG/CR-5512, Vol. 3 Section 5.2.2.4 POINT Maximum time P 3 D - 1 Argonne recommended value for integration points probabilistic calculations BUILDING PARAMETERS NROOM Number of rooms P 3 D - 1 NUREG/CR-5512 building occupancy scenario assumes only one contaminated room UD Deposition velocity P 2 D m/s 4.78E-04 The result of sensitivity analysis in DTBD-04-004 DKSUS Resuspension rate P, B 1 D s-1 1.33E-09 Calculated from the NUREG-1720 recommended DandD resuspension factor of 9.6E-07 m-1, deposition velocity, air exchange rate and room height (see Section 6.2 of DTBD 004)
H Room height P 2 D m 3.89 Result of sensitivity analysis in DTBD-04-004 AREA Room area P 2 D m2 137 Result of sensitivity analysis in DTBD-04-004 Page 6-253
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-U, Parameters for Structural Surface Area Factor Derivation Parameter Parameter Basis for Parameter Name Description Class1 Priority2 Treatment3 Units Value Selection LAMBDAT Air exchange rate B 2 D 1/h 0.835 The result of sensitivity analysis (building); in DTBD-04-004 LINPUT (room)
Q12 and Q21; Flow rate between rooms B 3 D m3/h 0 This dose model contains only Q23 and Q32 one receptor room Q10 and Q01; Outdoor inflow and B, P 3 N/A m3/h Not used Outdoor inflow is calculated from Q20 and Q02; outflow room volume and air exchange Q30 and Q03 rate RECEPTOR PARAMETERS ND Number of receptors B 3 D - 1 This dose model contains only one receptor DLVL Receptor room B 3 D - 1 This dose model contains only one receptor room DX Receptor location (x, y, B 3 D m 5.85, 5.85, 1 Center of the rooms floor z)
TWGHT Receptor time fraction B 3 D - 1 NUREG/CR-5512, Vol. 3 BRTRATE Receptor M, B 2 S m3/d Triangular NUREG/CR-6755, Appendix A breathing/inhalation distribution rate BRTRATE Receptor M, B 2 D m3/d 35.7 For Ni-59, Ni-63, Nb-94, Ag-breathing/inhalation 108m, Pm-147, Pu-238, Pu-rate 239, Pu-240, Pu-241, and Am-241, the result of sensitivity analysis in DTBD-04-004 INGE2 Indirect ingestion rate B 2 S m2/h Loguniform NUREG/CR-6755, Appendix A distribution INGE2 Indirect ingestion rate B 2 D m2/h 1.61E-04 For Pu-238 and Pu-241, the result of sensitivity analysis in DTBD-04-004 SOURCE PARAMETERS NS Number of sources P 3 D - 1 Assumes contamination on the floor Source 1 - Floor Page 6-254
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-U, Parameters for Structural Surface Area Factor Derivation Parameter Parameter Basis for Parameter Name Description Class1 Priority2 Treatment3 Units Value Selection SLVL Source room (also P 3 D - 1 This dose model contains only primary room) one room STYPE Source type P 3 D - Area NUREG/CR-5512 SDIR Source direction P 3 D - z NUREG/CR-5512 SX Source location (x, y, z) P 3 D m 5.85, 5.85, 0 X and Y distances are half of the square root of the room area derived from sensitivity analysis in DTBD-04-004 SAREA Source area P 2 D m2 137, 68, 36, Maximum floor area from derived 25, 16, 9, 4, 1, from sensitivity analysis in and 0.5 DTBD-04-004 - reduced areas used to calculate area factors AIRFR Air release fraction B 2 S - Triangular NUREG/CR-6755, Appendix A distribution AIRFR Air release fraction B 2 D 0.517 For Nb-94, Ag-108m, Pm-147, Pu-238, Pu-239, Pu-240, Pu-241, and Am-241, the result of sensitivity analysis in DTBD 004 INGE1 Direct ingestion rate B 2 D g/h or 3.45E-07 Calculated from the default 1/h ingestion rate of 1.1E-04 m2/h in the NUREG/CR-5512 industrial worker building occupancy scenario. 3.45E-07 h-1 is 1.1E-04 m2/h divided by the total contaminated area of 319 m2.
Page 6-255
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-U, Parameters for Structural Surface Area Factor Derivation Parameter Parameter Basis for Parameter Name Description Class1 Priority2 Treatment3 Units Value Selection RMVFR Removable fraction P, B 1 D - 0.1 10% of the contamination is removable (NUREG/CR-5512 industrial worker building occupancy scenario default).
The default parameter value for the loose fraction for the building occupancy scenario is 0.1 (Table C7.1, NUREG/CR-1727).
RF0 Source lifetime (also time P, B 2 S d Triangular NUREG/CR-6755, Section 3.6 for source removal) distribution RF0 Source lifetime (also time P, B 2 D d 52800 For Co-60, Nb-94, Ag-108m, Pu-for source removal) 238, Pu-239, Pu-240, Pu-241, and Am-241, the result of sensitivity analysis in DTBD 004 RRF Radon release fraction P, B 3 D - 0 Radon exposure is not regulated by the NRC RNUCACT Radionuclide P 2 D dpm/m2 100 Calculates a dose conversion concentration/activity factor in units of mrem/yr per dpm/100 cm2 NREGI0 Number of regions in P 3 N/A - Not used A volume source is not used in volume source this dose model FCONT0 Contaminated region P 3 N/A - Not used A volume source is not used in (volume source) this dose model THICK0 Source region thickness P 2 N/A cm Not used A volume source is not used in (volume source) this dose model DENSI0 Source density (volume P 1 N/A g/cm3 Not used A volume source is not used in source) this dose model EROS0 Source erosion rate P, B 2 N/A cm/d Not used A volume source is not used in (volume source) this dose model POROS0 Source porosity P 2 N/A - Not used A volume source is not used in this dose model Page 6-256
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-U, Parameters for Structural Surface Area Factor Derivation Parameter Parameter Basis for Parameter Name Description Class1 Priority2 Treatment3 Units Value Selection EFDIF0 Radon effective diffusion P 3 D m2/sec 0 Radon exposure is not regulated coefficient by the NRC EMANA0 Radon emanation P 3 D - 0 Radon exposure is not regulated fraction by the NRC MTLS Source material N/A - Not used A volume source is not used in this dose model SHIELDING PARAMETERS DSTH Shielding thickness P, B 2 S cm 0 Shielding is not used in this dose model DSDEN Shielding density P 1 S g/cm3 0 Shielding is not used in this dose model MTLC Shielding material P 3 N/A - None Shielding is not used in this dose model TRITIUM MODEL PARAMETERS DRYTHICK Dry zone thickness P 3 N/A cm Not Used This parameter is not used for a surface source H3THICK Wet + dry zone thickness P 2 N/A cm Not Used This parameter is not used for a surface source H3VOLFRACT Volumetric water content P 2 N/A - Not Used This parameter is not used for a surface source H3RMVF Water fraction available P 2 N/A - Not Used This parameter is not used for a for vaporization surface source HUMIDITY Humidity P, B 2 N/A g/m3 Not Used This parameter is not used for a surface source Notes:
1 Parameter Classification: P = Physical; B = Behavioral; M = Metabolic 2
1 = high priority parameter, 2 = medium priority parameter, 3 = low priority parameter 3
D = Deterministic treatment, S = Stochastic treatment Page 6-257
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-U, Parameters for Structural Surface Area Factor Derivation This page intentionally left blank Page 6-258
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological April 2006 Criteria for License Termination Appendix 6-V, Distribution Parameters for Structural Surface Area Factor Derivation Distributions Statistical Parameters2 1
Parameter Priority Distribution 1 2 3 4 Receptor breathing/inhalation rate 2 Triangular 12 46 33.6 Indirect ingestion rate 2 Loguniform 2.8E-05 2.9E-04 Air release fraction 2 Triangular 1E-06 1 0.07 Source lifetime 2 Triangular 1,000 100,000 10,000 Notes:
1 1 = high priority parameter, 2 = medium priority parameter 2
Distributions Statistical Parameter Loguniform: 1 = minimum, 2 = maximum Triangular: 1 = minimum, 2 = maximum, 3 = most likely Page 6-259
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological April 2006 Criteria for License Termination Appendix 6-V, Distribution Parameters for Structural Surface Area Factor Derivation This page intentionally left blank Page 6-260
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-W, Parameters for Sensitivity Analysis of Detected Radionuclides - Resident Farmer Scenario Parameter Parameter Class1 Priority2 Units Basis for Parameter Selection Value Contamination Thickness of P 2 m 0.15 Assigned value contaminated zone Area of contaminated P 2 m2 10,000 Default RESRAD v6.22 Physical priority 2 value acceptable for zone this preliminary evaluation Shape of the P 3 - Circular Default RESRAD v6.22 Physical priority 3 value acceptable for contaminated zone this evaluation Initial concentration of P 2 pCi/g 0.256 Table 6-6 C-14 in soil Initial concentration of P 2 pCi/g 0.360 Table 6-6 Co-60 in soil Initial concentration of P 2 pCi/g 9.19 Table 6-6 Ni-63 in soil Initial concentration of P 2 pCi/g 0.0692 Table 6-6 Sr-90 in soil Initial concentration of P 2 pCi/g 0.0124 Table 6-6 Cs-134 in soil Initial concentration of P 2 pCi/g 51.2 Table 6-6 Cs-137 in soil Initial concentration of P 3 pCi/L 0 Not Used for this evaluation radionuclides present in ground water Leach rate P 3 1/yr 0 Default Physical value to invoke the calculation of this parameter via a first-order leaching model that uses the value of the soil/water distribution coefficient in the contaminated zone Solubility limit P 3 mol/L 0 Default Physical value - not used by RESRAD v6.22 with leach rate flag set to 0 Time since placement P 3 yr 0 Default RESRAD v6.22 Physical priority 3 value acceptable for of material this evaluation Times for calculation P 3 yr 1, 3, 10, 30, Default RESRAD v6.22 Physical priority 3 value acceptable for 100, 300, 1000 this evaluation Contaminated zone P 1 g/cm3 Normal NUREG/CR-6767, Attachment C, Table C-1 distribution for silt density distribution Page 6-261
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-W, Parameters for Sensitivity Analysis of Detected Radionuclides - Resident Farmer Scenario Parameter Parameter Class1 Priority2 Units Basis for Parameter Selection Value Contaminated zone P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for C distribution Contaminated zone P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Ni distribution Contaminated zone P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Co distribution Contaminated zone P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Sr distribution Contaminated zone P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Cs distribution Use plant/soil ratio NA 3 Check No For purposes of this evaluation, the code should not be allowed to box calculate the distribution coefficients from the plant root uptake factors because they are calculated probabilistically Contaminated zone P 3 - 0.2 Default RESRAD v6.22 Priority 3 Physical priority 3 value field capacity acceptable for this evaluation Contaminated zone P,B 2 m/yr Continuous NUREG/CR-6697, Attachment C erosion rate logarithmic distribution Contaminated zone P 2 - Truncated NUREG/CR-6697, Attachment C total porosity normal distribution Contaminated zone P 2 m/yr Lognormal NUREG/CR-6697, Attachment C, Table 3.4-1 for silt hydraulic conductivity Contaminated zone b P 2 - Bounded NUREG/CR-6697, Attachment C parameter lognormal-n distribution Carbon-Model Parameters Thickness of evasion P 2 m Triangular NUREG/CR-6697, Attachment C layer of C-14 in soil distribution Page 6-262
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-W, Parameters for Sensitivity Analysis of Detected Radionuclides - Resident Farmer Scenario Parameter Parameter Class1 Priority2 Units Basis for Parameter Selection Value C-14 evasion flux rate P 3 1/s 7E-07 Default RESRAD v6.22 Physical priority 3 value acceptable for from soil this evaluation C-12 concentration in P 3 g/cm3 2E-05 Default RESRAD v6.22 Physical priority 3 value acceptable for local water this evaluation C-12 concentration in P 3 g/g 0.03 Default RESRAD v6.22 Physical priority 3 value acceptable for contaminated soil this evaluation Fraction of vegetation P 3 - 0.02 Default RESRAD v6.22 Physical priority 3 value acceptable for carbon absorbed this evaluation from soil Fraction of vegetation P 3 - 0.98 Default RESRAD v6.22 Physical priority 3 value acceptable for carbon absorbed this evaluation from air C-12 evasion flux rate P 3 1/s 1E-10 Default RESRAD v6.22 Physical priority 3 value acceptable for from soil this evaluation Grain fraction in beef B 3 - 0.8 Default RESRAD v6.22 Physical priority 3 value acceptable for cattle feed this evaluation Grain fraction in milk B 3 - 0.2 Default RESRAD v6.22 Physical priority 3 value acceptable for cow feed this evaluation DCF correction factor P 3 - 88.94 Default RESRAD v6.22 Physical priority 3 value acceptable for for gaseous forms of this evaluation C-14 Soil Cover depth P 2 m 0 The contamination is assumed to be on surface soil Density of cover P 1 g/cm3 Not Used A cover is not used in this evaluation material Cover total porosity P 3 - Not Used Radon is not used in this evaluation Cover volumetric P 3 - Not Used Radon is not used in this evaluation water content Cover radon diffusion P 3 m2/s Not Used Radon is not used in this evaluation coefficient Cover erosion rate P,B 2 m/yr Not Used A cover is not used in this evaluation Number of P 3 - 4 Simplified hydrogeological model assumption unsaturated zones Unsaturated zone 1 P 1 m 0.305 Thickness of silt layer above the sand layer thickness Page 6-263
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-W, Parameters for Sensitivity Analysis of Detected Radionuclides - Resident Farmer Scenario Parameter Parameter Class1 Priority2 Units Basis for Parameter Selection Value Unsaturated zone 1 P 2 g/cm3 Normal NUREG/CR-6767, Attachment C, Table C-1 distribution for silt density distribution Unsaturated zone 1 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for C distribution Unsaturated zone 1 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Ni distribution Unsaturated zone 1 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Co distribution Unsaturated zone 1 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Sr distribution Unsaturated zone 1 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Cs distribution Unsaturated zone 1 P 2 - Truncated NUREG/CR-6697, Attachment C, Table 3.2-1 distribution for silt total porosity normal distribution Unsaturated zone 1 P 2 - Truncated NUREG/CR-6767, Attachment A, Table A-7 distribution for silt effective porosity normal distribution Unsaturated zone 1 P 3 - Truncated NUREG/CR-6767, Attachment A, Table A-7 distribution for silt field capacity normal distribution Unsaturated zone 1 P 2 m/yr Bounded NUREG/CR-6697, Attachment C, Table 3.4-1 for silt hydraulic lognormal-n conductivity Unsaturated zone 1 P 2 - Bounded NUREG/CR-6697, Attachment C, Table 3.5-1 for silt soil-specific b lognormal-n parameter Unsaturated zone 2 P 1 m 3.05 Thickness of fine sand layer above the siltstone layer thickness Page 6-264
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-W, Parameters for Sensitivity Analysis of Detected Radionuclides - Resident Farmer Scenario Parameter Parameter Class1 Priority2 Units Basis for Parameter Selection Value Unsaturated zone 2 P 2 g/cm3 Normal NUREG/CR-6767, Attachment C, Table C-1 distribution for sand density distribution Unsaturated zone 2 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for C distribution Unsaturated zone 2 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Ni distribution Unsaturated zone 2 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Co distribution Unsaturated zone 2 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Sr distribution Unsaturated zone 2 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Cs distribution Unsaturated zone 2 P 2 - Truncated NUREG/CR-6697, Attachment C, Table 3.2-1 distribution for sand total porosity normal distribution Unsaturated zone 2 P 2 - Truncated NUREG/CR-6767, Attachment A, Table A-1 distribution for sand effective porosity normal distribution Unsaturated zone 2 P 3 - Truncated NUREG/CR-6767, Attachment A, Table A-1 distribution for sand field capacity normal distribution Unsaturated zone 2 P 2 m/yr Bounded NUREG/CR-6697, Attachment C, Table 3.4-1 for sand hydraulic lognormal-n conductivity distribution Unsaturated zone 2 P 2 - Bounded NUREG/CR-6697, Attachment C, Table 3.5-1 for sand soil-specific b lognormal-n parameter distribution Unsaturated zone 3 P 1 m 25.60 Thickness of siltstone layer thickness Page 6-265
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-W, Parameters for Sensitivity Analysis of Detected Radionuclides - Resident Farmer Scenario Parameter Parameter Class1 Priority2 Units Basis for Parameter Selection Value Unsaturated zone 3 P 2 g/cm3 Normal NUREG/CR-6767, Attachment C, Table C-1 distribution for silt density distribution Unsaturated zone 3 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for C distribution Unsaturated zone 3 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Ni distribution Unsaturated zone 3 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Co distribution Unsaturated zone 3 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Sr distribution Unsaturated zone 3 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Cs distribution Unsaturated zone 3 P 2 - 0.35 RESRAD Data Collection Handbook Table 3.2 arithmetic mean for total porosity medium siltstone Unsaturated zone 3 P 2 - 0.12 RESRAD Data Collection Handbook Table 3.2 arithmetic mean for effective porosity medium siltstone Unsaturated zone 3 P 3 - 0.23 Total porosity minus effective porosity per RESRAD Data field capacity Collection Handbook, Section 4.1 Unsaturated zone 3 P 2 m/yr Bounded NUREG/CR-6697, Attachment C, Table 3.4-1 for silt hydraulic lognormal-n conductivity Unsaturated zone 3 P 2 - Bounded NUREG/CR-6697, Attachment C, Table 3.5-1 for silt soil-specific b lognormal-n parameter distribution Unsaturated zone 4 P 1 m 10.82 Thickness of unsaturated sandstone layer thickness Unsaturated zone 4 P 2 g/cm3 Normal NUREG/CR-6767, Attachment C, Table C-1 distribution for sand density distribution Page 6-266
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-W, Parameters for Sensitivity Analysis of Detected Radionuclides - Resident Farmer Scenario Parameter Parameter Class1 Priority2 Units Basis for Parameter Selection Value Unsaturated zone 4 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for C distribution Unsaturated zone 4 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Ni distribution Unsaturated zone 4 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Co distribution Unsaturated zone 4 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Sr distribution Unsaturated zone 4 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Cs distribution Unsaturated zone 4 P 2 - 0.35 RESRAD Data Collection Handbook Table 3.2 arithmetic mean for total porosity sandstone Unsaturated zone 4 P 2 - 0.27 RESRAD Data Collection Handbook Table 3.2 arithmetic mean for effective porosity sandstone Unsaturated zone 4 P 3 - 0.07 Total porosity minus effective porosity per RESRAD Data field capacity Collection Handbook, Section 4.1 Unsaturated zone 4 P 2 m/yr Bounded NUREG/CR-6697, Attachment C, Table 3.4-1 for sand hydraulic lognormal-n conductivity distribution Unsaturated zone 4 P 2 - Bounded NUREG/CR-6697, Attachment C, Table 3.5-1 for sand soil-specific b lognormal-n parameter distribution Water Density of saturated P 1 g/cm3 Normal NUREG/CR-6767, Attachment C, Table C-1 distribution for sand zone distribution Saturated zone P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for C distribution Page 6-267
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-W, Parameters for Sensitivity Analysis of Detected Radionuclides - Resident Farmer Scenario Parameter Parameter Class1 Priority2 Units Basis for Parameter Selection Value Saturated zone P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Ni distribution Saturated zone P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Co distribution Saturated zone P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Sr distribution Saturated zone P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Cs distribution Saturated zone total P 1 - 0.34 RESRAD Data Collection Handbook Table 3.2 arithmetic mean for porosity sandstone Saturated zone P 1 - 0.27 RESRAD Data Collection Handbook Table 3.2 arithmetic mean for effective porosity sandstone Saturated zone field P 3 - 0.07 Total porosity minus effective porosity per RESRAD Data capacity Collection Handbook, Section 4.1 Saturated zone P 1 m/yr 10 Upper boundary value from RESRAD Data Collection Handbook, hydraulic Table 5.1 for sandstone conductivity Saturated zone P 2 - Bounded NUREG/CR-6697, Attachment C hydraulic gradient lognormal-n distribution Saturated zone soil- P 2 - Bounded NUREG/CR-6697, Attachment C specific b parameter lognormal-n distribution Length of P 2 m 113 Diameter of an 10,000 m2 contaminated zone contaminated zone parallel to the aquifer flow Water table drop rate P 3 m/yr 0.783 Site specific value applicable to the RSNGS site as reported in the FSAR, Appendix 2C Page 6-268
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-W, Parameters for Sensitivity Analysis of Detected Radionuclides - Resident Farmer Scenario Parameter Parameter Class1 Priority2 Units Basis for Parameter Selection Value Well-pump intake P 2 m 23 Site specific value applicable to the RSNGS site as reported in the depth (below water FSAR, Appendix 2C table)
Well pumping rate B, P 2 m3/yr Not Used Well pumping rate is not used with the Mass-Balance model for water transport selected - well pumping rate is used to calculated a dilution factor when the Nondisposal model is selected.
Model: non-dispersion NA 3 - MB The mass-balance model was chosen as the most conservative or mass balance since it assumes that all of the radionuclides released from the contaminated zone are withdrawn through the well.
Evapotranspiration P 2 - Uniform NUREG/CR-6697, Attachment C coefficient distribution Humidity in air P 3 g/m3 Not Used Not used when the Radon exposure pathway is suppressed Average annual wind P 2 m/s 3.13 7 mph average annual wind speed for the years of 1930 - 1996 speed reported by the National Climatic Data Center for Stockton, CA (http://www.ncdc.noaa.gov/oa/documentlibrary/wind/wind1996.p df)
Precipitation rate P 2 m/yr 0.38 Mean annual average rainfall measured at Sacramento and Stockton Irrigation mode B 3 - Overhead Behavioral value - ditch irrigation is not the principal method of irrigation in the local region Irrigation rate B 3 m/yr 0.732 Table 8, Estimated Quantity of Water Applied Using Only Sprinkler Systems to Distribute Water: 1998 and 1994, average value for California, 1997 USDA Census of Agriculture, (http://www.nass.usda.gov/census/census97/fris/tbl08.pdf)
Runoff coefficient P 2 - Uniform NUREG/CR-6697, Attachment C distribution Watershed area for P 3 m2 1.00E+07 The entire RSNGS site drains into Clay Creek nearby stream or pond Accuracy for water soil NA 3 - 0.001 Default RESRAD v6.22 priority 3 value acceptable for this computation evaluation Ingestion Page 6-269
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-W, Parameters for Sensitivity Analysis of Detected Radionuclides - Resident Farmer Scenario Parameter Parameter Class1 Priority2 Units Basis for Parameter Selection Value Fruit, vegetable, and M, B 2 kg/yr Triangular NUREG/CR-6697, Attachment C grain consumption distribution rate Leafy vegetable M, B 3 kg/yr 14 Default RESRAD v6.22 Metabolic/ Behavioral priority 3 value consumption acceptable for this evaluation Milk consumption M, B 2 L/yr Triangular NUREG/CR-6697, Attachment C distribution Meat and poultry M, B 3 kg/yr 63 Default RESRAD v6.22 Metabolic/ Behavioral priority 3 value consumption acceptable for this evaluation Fish consumption rate M, B 3 kg/yr 5.4 Default RESRAD v6.22 Metabolic/ Behavioral priority 3 value acceptable for this evaluation Other seafood M, B 3 kg/yr 0.9 Default RESRAD v6.22 Metabolic/ Behavioral priority 3 value consumption rate acceptable for this evaluation Aquatic food B, P 2 - Triangular NUREG/CR-6697, Attachment C contaminated distribution fraction Soil ingestion rate M, B 2 g/yr Triangular NUREG/CR-6697, Attachment C distribution Drinking water intake M, B 2 L/yr Truncated NUREG/CR-6697, Attachment C lognormal-n distribution Storage time for fruits, B 3 d 14 Default RESRAD v6.22 Behavioral priority 3 value acceptable for non-leafy this evaluation vegetables, and grain Storage time for leafy B 3 d 1 Default RESRAD v6.22 Behavioral priority 3 value acceptable for vegetables this evaluation Storage time for milk B 3 d 1 Default RESRAD v6.22 Behavioral priority 3 value acceptable for this evaluation Storage time for meat B 3 d 20 Default RESRAD v6.22 Behavioral priority 3 value acceptable for this evaluation Storage time for fish B 3 d 7 Default RESRAD v6.22 Behavioral priority 3 value acceptable for this evaluation Page 6-270
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-W, Parameters for Sensitivity Analysis of Detected Radionuclides - Resident Farmer Scenario Parameter Parameter Class1 Priority2 Units Basis for Parameter Selection Value Storage time for B 3 d 7 Default RESRAD v6.22 Behavioral priority 3 value acceptable for crustacea and this evaluation mollusks Storage time for well B 3 d 1 Default RESRAD v6.22 Behavioral priority 3 value acceptable for water this evaluation Storage time for B 3 d 1 Default RESRAD v6.22 Behavioral priority 3 value acceptable for surface water this evaluation Storage time for B 3 d 45 Default RESRAD v6.22 Behavioral priority 3 value acceptable for livestock fodder this evaluation Drinking water B, P 3 - 1 Default RESRAD v6.22 Behavioral/Physical priority 3 value contaminated acceptable for this evaluation fraction Household water B, P 3 - Not Used Not used when the radon exposure pathway is suppressed contaminated fraction Livestock water B, P 3 - 1 Default RESRAD v6.22 Behavioral priority 3 value acceptable for contaminated this evaluation fraction Irrigation water B, P 3 - 1 Default RESRAD v6.22 Behavioral priority 3 value acceptable for contaminated this evaluation fraction Plant food B, P 3 - -1 Default RESRAD v6.22 Behavioral/Physical priority 3 value contaminated acceptable for this evaluation fraction Meat contaminated B, P 3 - -1 Default RESRAD v6.22 Behavioral/Physical priority 3 value fraction acceptable for this evaluation Milk contaminated B, P 3 - -1 Default RESRAD v6.22 Behavioral/Physical priority 3 value fraction acceptable for this evaluation Livestock fodder M 3 kg/d 68 Default RESRAD v6.22 Metabolic priority 3 value acceptable for intake rate for meat this evaluation Livestock fodder M 3 kg/d 55 Default RESRAD v6.22 Metabolic priority 3 value acceptable for intake rate for milk this evaluation Livestock water intake M 3 L/d 50 Default RESRAD v6.22 Metabolic priority 3 value acceptable for rate for meat this evaluation Page 6-271
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-W, Parameters for Sensitivity Analysis of Detected Radionuclides - Resident Farmer Scenario Parameter Parameter Class1 Priority2 Units Basis for Parameter Selection Value Livestock water intake M 3 L/d 160 Default RESRAD v6.22 Metabolic priority 3 value acceptable for rate for milk this evaluation Livestock intake of soil M 3 kg/d 0.5 Default RESRAD v6.22 Metabolic priority 3 value acceptable for this evaluation Mass loading for foliar P 3 g/m3 0.0001 Default RESRAD v6.22 Metabolic priority 3 value acceptable for deposition this evaluation Depth of soil mixing P 2 m Triangular NUREG/CR-6697, Attachment C layer distribution Depth of roots P 1 m Uniform NUREG/CR-6697, Attachment C distribution Groundwater fractional B, P 3 - 1 Default RESRAD v6.22 Behavioral/Physical priority 3 value usage for drinking acceptable for this evaluation water Groundwater fractional B, P 3 - Not Used Not used when the radon exposure pathway is suppressed usage for household water Groundwater fractional B, P 3 - 1 Default RESRAD v6.22 Behavioral/Physical priority 3 value usage for livestock acceptable for this evaluation water Groundwater fractional B, P 3 - 1 Default RESRAD v6.22 Behavioral/Physical priority 3 value usage for irrigation acceptable for this evaluation water Wet weight crop yield P 2 kg/m2 Truncated NUREG/CR-6697, Attachment C for non-leafy plants lognormal-n distribution Wet weight crop yield P 3 kg/m2 1.5 Default RESRAD v6.22 Physical priority 3 value acceptable for for leafy plants this evaluation Wet weight crop yield P 3 kg/m2 1.1 Default RESRAD v6.22 Physical priority 3 value acceptable for for fodder this evaluation Length of growing P 3 yr 0.17 Default RESRAD v6.22 Physical priority 3 value acceptable for season for non-leafy this evaluation vegetables Length of growing P 3 yr 0.25 Default RESRAD v6.22 Physical priority 3 value acceptable for season for leafy this evaluation vegetables Page 6-272
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-W, Parameters for Sensitivity Analysis of Detected Radionuclides - Resident Farmer Scenario Parameter Parameter Class1 Priority2 Units Basis for Parameter Selection Value Length of growing P 3 yr 0.08 Default RESRAD v6.22 Physical priority 3 value acceptable for season for fodder this evaluation Translocation factor P 3 - 0.1 Default RESRAD v6.22 Physical priority 3 value acceptable for for non-leafy this evaluation vegetables Translocation factor P 3 - 1 Default RESRAD v6.22 Physical priority 3 value acceptable for for leafy vegetables this evaluation Translocation factor P 3 - 1 Default RESRAD v6.22 Physical priority 3 value acceptable for for fodder this evaluation Weathering removal P 2 1/yr Triangular NUREG/CR-6697, Attachment C constant distribution Dry foliar interception P 3 - 0.25 Default RESRAD v6.22 Physical priority 3 value acceptable for fraction for non-leafy this evaluation vegetables Dry foliar interception P 3 - 0.25 Default RESRAD v6.22 Physical priority 3 value acceptable for fraction for leafy this evaluation vegetables Dry foliar interception P 3 - 0.25 Default RESRAD v6.22 Physical priority 3 value acceptable for fraction for fodder this evaluation Wet foliar interception P 3 - 0.25 Default RESRAD v6.22 Physical priority 3 value acceptable for fraction for non-leafy this evaluation vegetables Wet foliar interception P 2 - Triangular NUREG/CR-6697, Attachment C fraction for leafy distribution vegetables Wet foliar interception P 3 - 0.25 Default RESRAD v6.22 Physical priority 3 value acceptable for fraction for fodder this evaluation Slope factor - external M 3 (risk/yr)/ Nuclide specific Default RESRAD v6.22 Metabolic priority 3 value acceptable for (pCi/g) this evaluation Slope factor - M 3 risk/pCi Nuclide specific Default RESRAD v6.22 Metabolic priority 3 value acceptable for inhalation this evaluation Slope factor - M 3 risk/pCi Nuclide specific Default RESRAD v6.22 Metabolic priority 3 value acceptable for ingestion this evaluation Page 6-273
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-W, Parameters for Sensitivity Analysis of Detected Radionuclides - Resident Farmer Scenario Parameter Parameter Class1 Priority2 Units Basis for Parameter Selection Value Plant transfer factor P 1 pCi/g Truncated NUREG/CR-6697, Attachment C for C plant(wet) lognormal-n per pCi/g distribution soil (dry)
Plant transfer factor P 1 pCi/g Truncated NUREG/CR-6697, Attachment C for Co plant(wet) lognormal-n per pCi/g distribution soil (dry)
Plant transfer factor P 1 pCi/g Truncated NUREG/CR-6697, Attachment C for Ni plant(wet) lognormal-n per pCi/g distribution soil (dry)
Plant transfer factor P 1 pCi/g Truncated NUREG/CR-6697, Attachment C for Sr plant(wet) lognormal-n per pCi/g distribution soil (dry)
Plant transfer factor P 1 pCi/g Truncated NUREG/CR-6697, Attachment C for Cs plant(wet) lognormal-n per pCi/g distribution soil (dry)
Meat transfer factor for P 2 (pCi/kg)/ Truncated NUREG/CR-6697, Attachment C C (pCi/d) lognormal-n distribution Meat transfer factor for P 2 (pCi/kg)/ Truncated NUREG/CR-6697, Attachment C Co (pCi/d) lognormal-n distribution Meat transfer factor for P 2 (pCi/kg)/ Truncated NUREG/CR-6697, Attachment C Ni (pCi/d) lognormal-n distribution Meat transfer factor for P 2 (pCi/kg)/ Truncated NUREG/CR-6697, Attachment C Sr (pCi/d) lognormal-n distribution Meat transfer factor for P 2 (pCi/kg)/ Truncated NUREG/CR-6697, Attachment C Cs (pCi/d) lognormal-n distribution Page 6-274
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-W, Parameters for Sensitivity Analysis of Detected Radionuclides - Resident Farmer Scenario Parameter Parameter Class1 Priority2 Units Basis for Parameter Selection Value Milk transfer factor for P 2 (pCi/L)/ Truncated NUREG/CR-6697, Attachment C C (pCi/d) lognormal-n distribution Milk transfer factor for P 2 (pCi/L)/ Truncated NUREG/CR-6697, Attachment C Co (pCi/d) lognormal-n distribution Milk transfer factor for P 2 (pCi/L)/ Truncated NUREG/CR-6697, Attachment C Ni (pCi/d) lognormal-n distribution Milk transfer factor for P 2 (pCi/L)/ Truncated NUREG/CR-6697, Attachment C Sr (pCi/d) lognormal-n distribution Milk transfer factor for P 2 (pCi/L)/ Truncated NUREG/CR-6697, Attachment C Cs (pCi/d) lognormal-n distribution C bioaccumulation P 2 (pCi/kg)/ Lognormal-n NUREG/CR-6697, Attachment C factor for fish (pCi/L) distribution Co bioaccumulation P 2 (pCi/kg)/ Lognormal-n NUREG/CR-6697, Attachment C factor for fish (pCi/L) distribution Ni bioaccumulation P 2 (pCi/kg)/ Lognormal-n NUREG/CR-6697, Attachment C factor for fish (pCi/L) distribution Sr bioaccumulation P 2 (pCi/kg)/ Lognormal-n NUREG/CR-6697, Attachment C factor for fish (pCi/L) distribution Cs bioaccumulation P 2 (pCi/kg)/ Lognormal-n NUREG/CR-6697, Attachment C factor for fish (pCi/L) distribution C bioaccumulation P 3 (pCi/kg)/ 9100 Default RESRAD v6.22 Physical priority 3 value acceptable for factor for crustacea (pCi/L) this evaluation and mollusks Co bioaccumulation P 3 (pCi/kg)/ 200 Default RESRAD v6.22 Physical priority 3 value acceptable for factor for crustacea (pCi/L) this evaluation and mollusks Ni bioaccumulation P 3 (pCi/kg)/ 100 Default RESRAD v6.22 Physical priority 3 value acceptable for factor for crustacea (pCi/L) this evaluation and mollusks Page 6-275
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-W, Parameters for Sensitivity Analysis of Detected Radionuclides - Resident Farmer Scenario Parameter Parameter Class1 Priority2 Units Basis for Parameter Selection Value Sr bioaccumulation P 3 (pCi/kg)/ 100 Default RESRAD v6.22 Physical priority 3 value acceptable for factor for crustacea (pCi/L) this evaluation and mollusks Cs bioaccumulation P 3 (pCi/kg)/ 100 Default RESRAD v6.22 Physical priority 3 value acceptable for factor for crustacea (pCi/L) this evaluation and mollusks Occupancy (Inhalation & External Parameters)
Inhalation rate M, B 3 m3/yr Triangular NUREG/CR-6697, Attachment C distribution Inhalation dose M 3 mrem/pCi Nuclide specific Metabolic RESRAD v6.22 default priority 3 value acceptable for conversion factors this evaluation Ingestion dose M 3 mrem/pCi Nuclide specific Metabolic RESRAD v6.22 default priority 3 value acceptable for conversion factors this evaluation Mass loading for P, B 2 g/m3 Continuous NUREG/CR-6697, Attachment C inhalation linear distribution Indoor dust filtration P, B 2 - Uniform NUREG/CR-6697, Attachment C factor distribution External gamma P 2 - Bounded NUREG/CR-6697, Attachment C shielding factor lognormal-n distribution Building foundation P 3 m Not Used The Radon Exposure Pathway is not used thickness Building foundation P 3 g/m3 Not Used The Radon Exposure Pathway is not used bulk density Building foundation P 3 - Not Used The Radon Exposure Pathway is not used total porosity Building foundation P 3 - Not Used The Radon Exposure Pathway is not used volumetric water content Building foundation P 3 m2/s Not Used The Radon Exposure Pathway is not used radon diffusion coefficient Page 6-276
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-W, Parameters for Sensitivity Analysis of Detected Radionuclides - Resident Farmer Scenario Parameter Parameter Class1 Priority2 Units Basis for Parameter Selection Value Contaminated soil P 3 m2/s Not Used The Radon Exposure Pathway is not used zone radon diffusion coefficient Radon vertical P 3 m Not Used The Radon Exposure Pathway is not used dimension of mixing Building air exchange P, B 3 1/hr Not Used The Radon Exposure Pathway is not used rate Building (room) height P 3 m Not Used The Radon Exposure Pathway is not used Building indoor area P 3 - Not Used The Radon Exposure Pathway is not used factor Foundation depth P 3 m Not Used The Radon Exposure Pathway is not used below ground surface Radon-222 emanation P 3 - Not Used The Radon Exposure Pathway is not used coefficient Radon-220 emanation P 3 - Not Used The Radon Exposure Pathway is not used coefficient Indoor time fraction B 3 - 0.50 Default RESRAD v6.22 Behavioral priority 3 value acceptable for this evaluation Outdoor time fraction B 3 - 0.25 Default RESRAD v6.22 Behavioral priority 3 value acceptable for this evaluation Exposure duration B 3 yr 30 Behavioral RESRAD v6.22 default Behavioral priority 3 value acceptable for this evaluation 1
Parameter Classification: P = Physical; B = Behavioral; M = Metabolic 2
1 = high priority parameter, 2 = medium priority parameter, 3 = low priority parameter Page 6-277
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-W, Parameters for Sensitivity Analysis of Detected Radionuclides - Resident Farmer Scenario This page intentionally left blank Page 6-278
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-X, Sensitivity Analysis Distribution Parameters and Sensitive Parameter Results for Detected Radionuclides -
Resident Farmer Scenario Distributions Statistical Parameters2 25% or Assigned 1
Parameter Priority Distribution PRCC3 75% Parameter 1 2 3 4 Quartile Value Density of contaminated zone 1 Normal 1.330 0.202 - - 0.53 75% 1.47 Density of saturated zone 1 Normal 1.578 0.158 - - 0.00 No Distribution Contaminated zone distribution 1 Truncated lognormal-n 2.40 3.22 0.001 0.999 0.13 No Distribution coefficient for C-14 Contaminated zone distribution 1 Truncated lognormal-n 6.05 1.46 0.001 0.999 -0.03 No Distribution coefficient for Ni-63 Contaminated zone distribution 1 Truncated lognormal-n 5.46 2.53 0.001 0.999 0.07 No Distribution coefficient for Co-60 Contaminated zone distribution 1 Truncated lognormal-n 3.45 2.12 0.001 0.999 -0.08 No Distribution coefficient for Sr-90 Contaminated zone distribution 1 Truncated lognormal-n 6.10 2.33 0.001 0.999 -0.04 No Distribution coefficient for Cs-134 Contaminated zone distribution 1 Truncated lognormal-n 6.10 2.33 0.001 0.999 0.19 No Distribution coefficient for Cs-137 Unsaturated zone 1 distribution 1 Truncated lognormal-n 2.40 3.22 0.001 0.999 0.07 No Distribution coefficient for C-14 Unsaturated zone 1 distribution 1 Truncated lognormal-n 6.05 1.46 0.001 0.999 0.12 No Distribution coefficient for Ni-63 Unsaturated zone 1 distribution 1 Truncated lognormal-n 5.46 2.53 0.001 0.999 -0.04 No Distribution coefficient for Co-60 Unsaturated zone 1 distribution 1 Truncated lognormal-n 3.45 2.12 0.001 0.999 -0.04 No Distribution coefficient for Sr-90 Unsaturated zone 1 distribution 1 Truncated lognormal-n 6.10 2.33 0.001 0.999 -0.04 No Distribution coefficient for Cs-134 Unsaturated zone 1 distribution 1 Truncated lognormal-n 6.10 2.33 0.001 0.999 0.06 No Distribution coefficient for Cs-137 Unsaturated zone 2 distribution 1 Truncated lognormal-n 2.40 3.22 0.001 0.999 0.01 No Distribution coefficient for C-14 Unsaturated zone 2 distribution 1 Truncated lognormal-n 6.05 1.46 0.001 0.999 -0.03 No Distribution coefficient for Ni-63 Unsaturated zone 2 distribution 1 Truncated lognormal-n 5.46 2.53 0.001 0.999 0.03 No Distribution coefficient for Co-60 Unsaturated zone 2 distribution 1 Truncated lognormal-n 3.45 2.12 0.001 0.999 0.01 No Distribution coefficient for Sr-90 Unsaturated zone 2 distribution 1 Truncated lognormal-n 6.10 2.33 0.001 0.999 -0.05 No Distribution coefficient for Cs-134 Unsaturated zone 2 distribution 1 Truncated lognormal-n 6.10 2.33 0.001 0.999 0.03 No Distribution coefficient for Cs-137 Unsaturated zone 3 distribution 1 Truncated lognormal-n 2.40 3.22 0.001 0.999 -0.02 No Distribution coefficient for C-14 Unsaturated zone 3 distribution 1 Truncated lognormal-n 6.05 1.46 0.001 0.999 0.01 No Distribution coefficient for Ni-63 Page 6-279
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-X, Sensitivity Analysis Distribution Parameters and Sensitive Parameter Results for Detected Radionuclides -
Resident Farmer Scenario Distributions Statistical Parameters2 25% or Assigned 1
Parameter Priority Distribution PRCC3 75% Parameter 1 2 3 4 Quartile Value Unsaturated zone 3 distribution 1 Truncated lognormal-n 5.46 2.53 0.001 0.999 -0.06 No Distribution coefficient for Co-60 Unsaturated zone 3 distribution 1 Truncated lognormal-n 3.45 2.12 0.001 0.999 0.03 No Distribution coefficient for Sr-90 Unsaturated zone 3 distribution 1 Truncated lognormal-n 6.10 2.33 0.001 0.999 -0.04 No Distribution coefficient for Cs-134 Unsaturated zone 3 distribution 1 Truncated lognormal-n 6.10 2.33 0.001 0.999 0.03 No Distribution coefficient for Cs-137 Unsaturated zone 4 distribution 1 Truncated lognormal-n 2.40 3.22 0.001 0.999 -0.03 No Distribution coefficient for C-14 Unsaturated zone 4 distribution 1 Truncated lognormal-n 6.05 1.46 0.001 0.999 0.08 No Distribution coefficient for Ni-63 Unsaturated zone 4 distribution 1 Truncated lognormal-n 5.46 2.53 0.001 0.999 0.04 No Distribution coefficient for Co-60 Unsaturated zone 4 distribution 1 Truncated lognormal-n 3.45 2.12 0.001 0.999 0.04 No Distribution coefficient for Sr-90 Unsaturated zone 4 distribution 1 Truncated lognormal-n 6.10 2.33 0.001 0.999 0.11 No Distribution coefficient for Cs-134 Unsaturated zone 4 distribution 1 Truncated lognormal-n 6.10 2.33 0.001 0.999 -0.11 No Distribution coefficient for Cs-137 Saturated zone distribution 1 Truncated lognormal-n 2.40 3.22 0.001 0.999 -0.02 No Distribution coefficient for C-14 Saturated zone distribution 1 Truncated lognormal-n 6.05 1.46 0.001 0.999 -0.04 No Distribution coefficient for Ni-63 Saturated zone distribution 1 Truncated lognormal-n 5.46 2.53 0.001 0.999 0.06 No Distribution coefficient for Co-60 Saturated zone distribution 1 Truncated lognormal-n 3.45 2.12 0.001 0.999 0.04 No Distribution coefficient for Sr-90 Saturated zone distribution 1 Truncated lognormal-n 6.10 2.33 0.001 0.999 -0.02 No Distribution coefficient for Cs-134 Saturated zone distribution 1 Truncated lognormal-n 6.10 2.33 0.001 0.999 0.01 No Distribution coefficient for Cs-137 Depth of roots 1 Uniform 0.3 4.0 - - -0.53 25% 1.21 Plant transfer factor for C 1 Truncated lognormal-n -0.36 0.9 0.001 0.999 0.01 No Distribution Plant transfer factor for Co 1 Truncated lognormal-n -2.53 0.9 0.001 0.999 -0.04 No Distribution Plant transfer factor for Ni 1 Truncated lognormal-n -3.00 0.9 0.001 0.999 -0.05 No Distribution Plant transfer factor for Sr 1 Truncated lognormal-n -1.20 1.0 0.001 0.999 -0.09 No Distribution Plant transfer factor for Cs 1 Truncated lognormal-n -3.22 1.0 0.001 0.999 0.63 75% 0.0781 Contaminated zone b parameter 2 Bounded lognormal-n 1.06 0.66 0.5 30 -0.09 No Distribution 3
Contaminated zone erosion rate 2 Continuous logarithmic Default - - - -0.19 No Distribution Contaminated zone total porosity 2 Truncated normal 0.425 0.0867 0.001 0.999 0.17 No Distribution Page 6-280
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-X, Sensitivity Analysis Distribution Parameters and Sensitive Parameter Results for Detected Radionuclides -
Resident Farmer Scenario Distributions Statistical Parameters2 25% or Assigned 1
Parameter Priority Distribution PRCC3 75% Parameter 1 2 3 4 Quartile Value Contaminated zone hydraulic 2 Lognormal 3.302 62.0 - - -0.16 No Distribution conductivity Depth of soil mixing layer 2 Triangular 0.0 0.6 0.15 - -0.25 No Distribution Drinking water intake 2 Truncated lognormal-n 6.015 0.489 0.001 0.999 0.03 No Distribution Evapotranspiration coefficient 2 Uniform 0.5 0.75 - - -0.01 No Distribution External gamma shielding factor 2 Bounded lognormal-n -1.3 0.59 0.044 1 0.93 75% 0.398 Indoor dust filtration factor 2 Uniform 0.15 0.95 - - -0.01 No Distribution 3
Mass loading for inhalation 2 Continuous linear Default - - - -0.05 No Distribution Runoff coefficient 2 Uniform 0.1 0.8 - - 0.07 No Distribution Fruit, vegetable and grain 2 Triangular 135 318 178 - 0.02 No Distribution consumption rate Milk consumption rate 2 Triangular 60 200 102 - 0.19 No Distribution Aquatic food contaminated fraction 2 Triangular 0 1 0.39 - -0.02 No Distribution Wet weight crop yield for non-leafy 2 Truncated lognormal-n 0.56 0.48 0.001 0.999 -0.13 No Distribution plants Weathering removal constant 2 Triangular 5.1 84 18 - -0.05 No Distribution Wet foliar interception fraction for 2 Triangular 0.06 0.95 0.67 - 0.18 No Distribution leafy vegetables Saturated zone b parameter 2 Bounded lognormal-n 1.06 0.66 0.5 30 -0.14 No Distribution Saturated zone hydraulic gradient 2 Bounded lognormal-n -5.11 1.77 7E-05 0.5 -0.07 No Distribution Soil ingestion rate 2 Triangular 0 36.5 18.3 - 0.02 No Distribution Unsaturated zone 1 density 2 Normal 1.33 0.202 - - -0.13 No Distribution Unsaturated zone 1 effective 2 Truncated normal 0.425 0.110 0.0839 0.766 0.02 No Distribution porosity Unsaturated zone 1 hydraulic 2 Bounded lognormal-n 2.66 0.475 3.302 62.2 0.00 No Distribution conductivity Unsaturated zone 1 b parameter 2 Bounded lognormal-n 1.16 0.140 2.06 4.89 -0.02 No Distribution Unsaturated zone 1 total porosity 2 Truncated normal 0.46 0.11 0.1161 0.7959 0.04 No Distribution Unsaturated zone 2 density 2 Normal 1.578 0.158 - - 0.05 No Distribution Unsaturated zone 2 effective 2 Truncated normal 0.383 0.0610 0.195 0.572 0.02 No Distribution porosity Unsaturated zone 2 hydraulic 2 Bounded lognormal-n 1.398 1.842 110 5870 0.02 No Distribution conductivity Unsaturated zone 2 b parameter 2 Bounded lognormal-n -0.0253 0.216 0.501 1.90 -0.05 No Distribution Unsaturated zone 2 total porosity 2 Truncated normal 0.43 0.06 0.2446 0.6154 0.02 No Distribution Unsaturated zone 3 density 2 Normal 1.33 0.202 - - -0.02 No Distribution Unsaturated zone 3 hydraulic 2 Bounded lognormal-n 2.66 0.475 3.302 62.2 -0.04 No Distribution conductivity Unsaturated zone 3 b parameter 2 Bounded lognormal-n 1.16 0.140 2.06 4.89 -0.01 No Distribution Unsaturated zone 4 density 2 Normal 1.578 0.158 - - 0.01 No Distribution Unsaturated zone 4 hydraulic 2 Bounded lognormal-n 1.398 1.842 110 5870 -0.07 No Distribution conductivity Page 6-281
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-X, Sensitivity Analysis Distribution Parameters and Sensitive Parameter Results for Detected Radionuclides -
Resident Farmer Scenario Distributions Statistical Parameters2 25% or Assigned 1
Parameter Priority Distribution PRCC3 75% Parameter 1 2 3 4 Quartile Value Unsaturated zone 4 b parameter 2 Bounded lognormal-n -0.0253 0.216 0.501 1.90 -0.12 No Distribution Thickness of evasion layer of C-14 in 2 Triangular 0.5 1.0 0.75 - -0.09 No Distribution soil Meat transfer factor for C 2 Truncated lognormal-n -3.47 1.0 0.001 0.999 0.14 No Distribution Meat transfer factor for Co 2 Truncated lognormal-n -3.51 1.0 0.001 0.999 -0.02 No Distribution Meat transfer factor for Ni 2 Truncated lognormal-n -5.30 0.9 0.001 0.999 -0.16 No Distribution Meat transfer factor for Sr 2 Truncated lognormal-n -4.61 0.4 0.001 0.999 -0.02 No Distribution Meat transfer factor for Cs 2 Truncated lognormal-n -3.00 0.4 0.001 0.999 0.43 75% 0.0649 Milk transfer factor for C 2 Truncated lognormal-n -4.4 0.9 0.001 0.999 -0.10 No Distribution Milk transfer factor for Co 2 Truncated lognormal-n -6.21 0.7 0.001 0.999 0.04 No Distribution Milk transfer factor for Ni 2 Truncated lognormal-n -3.91 0.7 0.001 0.999 -0.04 No Distribution Milk transfer factor for Sr 2 Truncated lognormal-n -6.21 0.5 0.001 0.999 0.07 No Distribution Milk transfer factor for Cs 2 Truncated lognormal-n -4.61 0.5 0.001 0.999 0.16 No Distribution C bioaccumulation factor for fish 2 Lognormal-n 10.8 1.1 - - -0.05 No Distribution Co bioaccumulation factor for fish 2 Lognormal-n 5.7 1.1 - - 0.04 No Distribution Ni bioaccumulation factor for fish 2 Lognormal-n 4.6 1.1 - - 0.07 No Distribution Sr bioaccumulation factor for fish 2 Lognormal-n 4.1 1.1 - - -0.03 No Distribution Cs bioaccumulation factor for fish 2 Lognormal-n 7.6 0.7 - - -0.04 No Distribution Unsaturated zone 1 field capacity 3 Truncated normal 0.236 0.0578 0.0575 0.415 0.06 No Distribution Unsaturated zone 2 field capacity 3 Truncated normal 0.0607 0.0150 0.0280 0.124 -0.07 No Distribution Inhalation rate 3 Triangular 4,380 13,100 8,400 - -0.01 No Distribution Notes:
1 1 = high priority parameter, 2 = medium priority parameter 2
Distributions Statistical Parameter Bounded lognormal-n: 1 = underlying mean value, 2 = underlying standard deviation, 3 = lower limit, 4 = upper limit Lognormal: 1 = mean, 2 = error factor Lognormal-n: 1 = mean, 2 = standard deviation Normal: 1 = mean, 2 = standard deviation Triangular: 1 = minimum, 2 = maximum, 3 = most likely Truncated lognormal-n: 1 = underlying mean value, 2 = underlying standard deviation, 3 = lower quantile, 4 = upper quantile Truncated normal: 1 = mean, 2 = standard deviation, 3 = lower quantile, 4 = upper quantile Uniform: 1 = minimum, 2 = maximum 3
Default RESRAD v6.22 distribution parameters were used Page 6-282
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-Y, Parameters for Sensitivity Analysis of Discounted Radionuclides - Resident Farmer Scenario Parameter Parameter Class1 Priority2 Units Basis for Parameter Selection Value Contamination Thickness of P 2 m 0.15 Assigned value contaminated zone Area of contaminated P 2 m2 10,000 Default RESRAD v6.22 Physical priority 2 value acceptable for zone this preliminary evaluation Shape of the P 3 - Circular Default RESRAD v6.22 Physical priority 3 value acceptable for contaminated zone this evaluation Initial concentration of P 2 pCi/g 5.44 Table 6-4 discounted radionuclide decayed laboratory analysis H-3 insoil MDA value Initial concentration of P 2 pCi/g 0.00946 Table 6-4 discounted radionuclide decayed laboratory analysis Na-22in soil MDA value Initial concentration of P 2 pCi/g 1.27 Table 6-4 discounted radionuclide decayed laboratory analysis Fe-55 in soil MDA value Initial concentration of P 2 pCi/g 3.58 Table 6-4 discounted radionuclide decayed laboratory analysis Ni-59 in soil MDA value Initial concentration of P 2 pCi/g 0.0395 Table 6-4 discounted radionuclide decayed laboratory analysis Nb-94 in soil MDA value Initial concentration of P 2 pCi/g 2.35 Table 6-4 discounted radionuclide decayed laboratory analysis Tc-99 in soil MDA value Initial concentration of P 2 pCi/g 0.0550 Table 6-4 discounted radionuclide decayed laboratory analysis Ag-108 in soil MDA value Initial concentration of P 2 pCi/g 0.125 Table 6-4 discounted radionuclide decayed laboratory analysis Sb-125 in soil MDA value Initial concentration of P 2 pCi/g 0.955 Table 6-4 discounted radionuclide decayed laboratory analysis Pm-147 in soil MDA value Initial concentration of P 2 pCi/g 0.176 Table 6-4 discounted radionuclide decayed laboratory analysis Eu-152 in soil MDA value Initial concentration of P 2 pCi/g 0.0626 Table 6-4 discounted radionuclide decayed laboratory analysis Eu-154 in soil MDA value Initial concentration of P 2 pCi/g 0.156 Table 6-4 discounted radionuclide decayed laboratory analysis Eu-155 in soil MDA value Initial concentration of P 2 pCi/g 0.441 Table 6-4 discounted radionuclide decayed laboratory analysis Np-237 in soil MDA value Initial concentration of P 2 pCi/g 0.824 Table 6-4 discounted radionuclide decayed laboratory analysis Pu-238 in soil MDA value Page 6-283
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-Y, Parameters for Sensitivity Analysis of Discounted Radionuclides - Resident Farmer Scenario Parameter Parameter Class1 Priority2 Units Basis for Parameter Selection Value Initial concentration of P 2 pCi/g 0.207 Table 6-4 discounted radionuclide decayed laboratory analysis Pu-239 in soil MDA value Initial concentration of P 2 pCi/g 0.207 Table 6-4 discounted radionuclide decayed laboratory analysis Pu-240 in soil MDA value Initial concentration of P 2 pCi/g 48.7 Table 6-4 discounted radionuclide decayed laboratory analysis Pu-241 in soil MDA value Initial concentration of P 2 pCi/g 0.757 Table 6-4 discounted radionuclide decayed laboratory analysis Am-241 in soil MDA value Initial concentration of P 2 pCi/g 0.594 Table 6-4 discounted radionuclide decayed laboratory analysis Pu-242 in soil MDA value Initial concentration of P 2 pCi/g 0.480 Table 6-4 discounted radionuclide decayed laboratory analysis Cm-244 in soil MDA value Initial concentration of P 3 pCi/L 0 Not Used for this evaluation radionuclides present in ground water Leach rate P 3 1/yr 0 Default Physical value to invoke the calculation of this parameter via a first-order leaching model that uses the value of the soil/water distribution coefficient in the contaminated zone Solubility limit P 3 mol/L 0 Default Physical value - not used by RESRAD v6.22 with leach rate flag set to 0 Time since placement P 3 yr 0 Default RESRAD v6.22 Physical priority 3 value acceptable for of material this evaluation Times for calculation P 3 yr 1, 3, 25, 50, 75 Specified calculations times for this evaluation 100, 300, 500, and 1000 Contaminated zone P 1 g/cm3 Normal NUREG/CR-6767, Attachment C, Table C-1 distribution for silt density distribution Contaminated zone P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for H distribution Contaminated zone P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Na distribution Page 6-284
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-Y, Parameters for Sensitivity Analysis of Discounted Radionuclides - Resident Farmer Scenario Parameter Parameter Class1 Priority2 Units Basis for Parameter Selection Value Contaminated zone P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Fe distribution Contaminated zone P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Ni distribution Contaminated zone P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Nb distribution Contaminated zone P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Tc distribution Contaminated zone P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Ag distribution Contaminated zone P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Sb distribution Contaminated zone P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Pm distribution Contaminated zone P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Sm distribution Contaminated zone P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Eu distribution Contaminated zone P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Gd distribution Contaminated zone P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Np distribution Page 6-285
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-Y, Parameters for Sensitivity Analysis of Discounted Radionuclides - Resident Farmer Scenario Parameter Parameter Class1 Priority2 Units Basis for Parameter Selection Value Contaminated zone P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for U distribution Contaminated zone P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Th distribution Contaminated zone P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Pu distribution Unsaturated zone 1 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Pb distribution Unsaturated zone 1 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Ra distribution Unsaturated zone 1 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Ac distribution Unsaturated zone 1 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Pa distribution Contaminated zone P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Am distribution Contaminated zone P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Cm distribution Use plant/soil ratio NA 3 Check No For purposes of this evaluation, the code should not be allowed to box calculate the distribution coefficients from the plant root uptake factors because they are calculated probabilistically Contaminated zone P 3 - 0.2 Default RESRAD v6.22 Priority 3 Physical priority 3 value field capacity acceptable for this evaluation Contaminated zone P,B 2 m/yr Continuous NUREG/CR-6697, Attachment C erosion rate logarithmic distribution Page 6-286
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-Y, Parameters for Sensitivity Analysis of Discounted Radionuclides - Resident Farmer Scenario Parameter Parameter Class1 Priority2 Units Basis for Parameter Selection Value Contaminated zone P 2 - Truncated NUREG/CR-6697, Attachment C total porosity normal distribution Contaminated zone P 2 m/yr Lognormal NUREG/CR-6697, Attachment C, Table 3.4-1 for silt hydraulic conductivity Contaminated zone b P 2 - Bounded NUREG/CR-6697, Attachment C parameter lognormal-n distribution Carbon-Model Parameters Thickness of evasion P 2 m Not Used C-14 is not a discounted radionuclide layer of C-14 in soil C-14 evasion flux rate P 3 1/s Not Used C-14 is not a discounted radionuclide from soil C-12 concentration in P 3 g/cm3 Not Used C-14 is not a discounted radionuclide local water C-12 concentration in P 3 g/g Not Used C-14 is not a discounted radionuclide contaminated soil Fraction of vegetation P 3 - Not Used C-14 is not a discounted radionuclide carbon absorbed from soil Fraction of vegetation P 3 - Not Used C-14 is not a discounted radionuclide carbon absorbed from air C-12 evasion flux rate P 3 1/s Not Used C-14 is not a discounted radionuclide from soil Grain fraction in beef B 3 - Not Used C-14 is not a discounted radionuclide cattle feed Grain fraction in milk B 3 - Not Used C-14 is not a discounted radionuclide cow feed DCF correction factor P 3 - Not Used C-14 is not a discounted radionuclide for gaseous forms of C-14 Soil Cover depth P 2 m 0 The contamination is assumed to be on surface soil Page 6-287
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-Y, Parameters for Sensitivity Analysis of Discounted Radionuclides - Resident Farmer Scenario Parameter Parameter Class1 Priority2 Units Basis for Parameter Selection Value Density of cover P 1 g/cm3 Not Used A cover is not used in this evaluation material Cover total porosity P 3 - Not Used Radon is not used in this evaluation Cover volumetric P 3 - Not Used Radon is not used in this evaluation water content Cover radon diffusion P 3 m2/s Not Used Radon is not used in this evaluation coefficient Cover erosion rate P,B 2 m/yr Not Used A cover is not used in this evaluation Number of P 3 - 4 Simplified hydrogeological model assumption unsaturated zones Unsaturated zone 1 P 1 m 0.305 Thickness of silt layer above the sand layer thickness Unsaturated zone 1 P 2 g/cm3 Normal NUREG/CR-6767, Attachment C, Table C-1 distribution for silt density distribution Unsaturated zone 1 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for H distribution Unsaturated zone 1 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Na distribution Unsaturated zone 1 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Fe distribution Unsaturated zone 1 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Ni distribution Unsaturated zone 1 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Nb distribution Unsaturated zone 1 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Tc distribution Unsaturated zone 1 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Ag distribution Page 6-288
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-Y, Parameters for Sensitivity Analysis of Discounted Radionuclides - Resident Farmer Scenario Parameter Parameter Class1 Priority2 Units Basis for Parameter Selection Value Unsaturated zone 1 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Sb distribution Unsaturated zone 1 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Pm distribution Unsaturated zone 1 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Sm distribution Unsaturated zone 1 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Eu distribution Unsaturated zone 1 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Gd distribution Unsaturated zone 1 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Np distribution Unsaturated zone 1 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Th distribution Unsaturated zone 1 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for U distribution Unsaturated zone 1 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Pu distribution Unsaturated zone 1 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Pb distribution Unsaturated zone 1 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Ra distribution Page 6-289
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-Y, Parameters for Sensitivity Analysis of Discounted Radionuclides - Resident Farmer Scenario Parameter Parameter Class1 Priority2 Units Basis for Parameter Selection Value Unsaturated zone 1 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Ac distribution Unsaturated zone 1 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Pa distribution Unsaturated zone 1 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Am distribution Unsaturated zone 1 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Cm distribution Unsaturated zone 1 P 2 - Truncated NUREG/CR-6697, Attachment C, Table 3.2-1 distribution for silt total porosity normal distribution Unsaturated zone 1 P 2 - Truncated NUREG/CR-6767, Attachment A, Table A-7 distribution for silt effective porosity normal distribution Unsaturated zone 1 P 3 - Truncated NUREG/CR-6767, Attachment A, Table A-7 distribution for silt field capacity normal distribution Unsaturated zone 1 P 2 m/yr Bounded NUREG/CR-6697, Attachment C, Table 3.4-1 for silt hydraulic lognormal-n conductivity Unsaturated zone 1 P 2 - Bounded NUREG/CR-6697, Attachment C, Table 3.5-1 for silt soil-specific b lognormal-n parameter Unsaturated zone 2 P 1 m 3.05 Thickness of fine sand layer above the siltstone layer thickness Unsaturated zone 2 P 2 g/cm3 Normal NUREG/CR-6767, Attachment C, Table C-1 distribution for sand density distribution Unsaturated zone 2 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for H distribution Page 6-290
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-Y, Parameters for Sensitivity Analysis of Discounted Radionuclides - Resident Farmer Scenario Parameter Parameter Class1 Priority2 Units Basis for Parameter Selection Value Unsaturated zone 2 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Na distribution Unsaturated zone 2 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Fe distribution Unsaturated zone 2 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Ni distribution Unsaturated zone 2 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Nb distribution Unsaturated zone 2 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Tc distribution Unsaturated zone 2 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Ag distribution Unsaturated zone 2 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Sb distribution Unsaturated zone 2 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Pm distribution Unsaturated zone 2 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Sm distribution Unsaturated zone 2 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Eu distribution Unsaturated zone 2 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Gd distribution Page 6-291
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-Y, Parameters for Sensitivity Analysis of Discounted Radionuclides - Resident Farmer Scenario Parameter Parameter Class1 Priority2 Units Basis for Parameter Selection Value Unsaturated zone 2 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Np distribution Unsaturated zone 2 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Th distribution Unsaturated zone 2 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Pm distribution Unsaturated zone 2 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for U distribution Unsaturated zone 2 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Pu distribution Unsaturated zone 2 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Pb distribution Unsaturated zone 2 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Ra distribution Unsaturated zone 2 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Ac distribution Unsaturated zone 2 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Pa distribution Unsaturated zone 2 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Am distribution Unsaturated zone 2 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Cm distribution Page 6-292
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-Y, Parameters for Sensitivity Analysis of Discounted Radionuclides - Resident Farmer Scenario Parameter Parameter Class1 Priority2 Units Basis for Parameter Selection Value Unsaturated zone 2 P 2 - Truncated NUREG/CR-6697, Attachment C, Table 3.2-1 distribution for sand total porosity normal distribution Unsaturated zone 2 P 2 - Truncated NUREG/CR-6767, Attachment A, Table A-1 distribution for sand effective porosity normal distribution Unsaturated zone 2 P 3 - Truncated NUREG/CR-6767, Attachment A, Table A-1 distribution for sand field capacity normal distribution Unsaturated zone 2 P 2 m/yr Bounded NUREG/CR-6697, Attachment C, Table 3.4-1 for sand hydraulic lognormal-n conductivity distribution Unsaturated zone 2 P 2 - Bounded NUREG/CR-6697, Attachment C, Table 3.5-1 for sand soil-specific b lognormal-n parameter distribution Unsaturated zone 3 P 1 m 25.60 Thickness of siltstone layer thickness Unsaturated zone 3 P 2 g/cm3 Normal NUREG/CR-6767, Attachment C, Table C-1 distribution for silt density distribution Unsaturated zone 3 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for H distribution Unsaturated zone 3 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Na distribution Unsaturated zone 3 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Fe distribution Unsaturated zone 3 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Ni distribution Unsaturated zone 3 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Nb distribution Page 6-293
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-Y, Parameters for Sensitivity Analysis of Discounted Radionuclides - Resident Farmer Scenario Parameter Parameter Class1 Priority2 Units Basis for Parameter Selection Value Unsaturated zone 3 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Tc distribution Unsaturated zone 3 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Ag distribution Unsaturated zone 3 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Sb distribution Unsaturated zone 3 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Pm distribution Unsaturated zone 3 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Sm distribution Unsaturated zone 3 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Eu distribution Unsaturated zone 3 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Gd distribution Unsaturated zone 3 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Np distribution Unsaturated zone 3 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Th distribution Unsaturated zone 3 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Pm distribution Unsaturated zone 3 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for U distribution Page 6-294
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-Y, Parameters for Sensitivity Analysis of Discounted Radionuclides - Resident Farmer Scenario Parameter Parameter Class1 Priority2 Units Basis for Parameter Selection Value Unsaturated zone 3 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Pu distribution Unsaturated zone 3 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Pb distribution Unsaturated zone 3 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Ra distribution Unsaturated zone 3 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Ac distribution Unsaturated zone 3 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Pa distribution Unsaturated zone 3 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Am distribution Unsaturated zone 3 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Cm distribution Unsaturated zone 3 P 2 - 0.35 RESRAD Data Collection Handbook Table 3.2 arithmetic mean for total porosity medium siltstone Unsaturated zone 3 P 2 - 0.12 RESRAD Data Collection Handbook Table 3.2 arithmetic mean for effective porosity medium siltstone Unsaturated zone 3 P 3 - 0.23 Total porosity minus effective porosity per RESRAD Data field capacity Collection Handbook, Section 4.1 Unsaturated zone 3 P 2 m/yr Bounded NUREG/CR-6697, Attachment C, Table 3.4-1 for silt hydraulic lognormal-n conductivity Unsaturated zone 3 P 2 - Bounded NUREG/CR-6697, Attachment C, Table 3.5-1 for silt soil-specific b lognormal-n parameter distribution Unsaturated zone 4 P 1 m 10.82 Thickness of unsaturated sandstone layer thickness Page 6-295
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-Y, Parameters for Sensitivity Analysis of Discounted Radionuclides - Resident Farmer Scenario Parameter Parameter Class1 Priority2 Units Basis for Parameter Selection Value Unsaturated zone 4 P 2 g/cm3 Normal NUREG/CR-6767, Attachment C, Table C-1 distribution for sand density distribution Unsaturated zone 4 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for H distribution Unsaturated zone 4 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Na distribution Unsaturated zone 4 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Fe distribution Unsaturated zone 4 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Ni distribution Unsaturated zone 4 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Nb distribution Unsaturated zone 4 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Tc distribution Unsaturated zone 4 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Ag distribution Unsaturated zone 4 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Sb distribution Unsaturated zone 4 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Pm distribution Unsaturated zone 4 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Sm distribution Unsaturated zone 4 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Eu distribution Page 6-296
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-Y, Parameters for Sensitivity Analysis of Discounted Radionuclides - Resident Farmer Scenario Parameter Parameter Class1 Priority2 Units Basis for Parameter Selection Value Unsaturated zone 4 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Gd distribution Unsaturated zone 4 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Np distribution Unsaturated zone 4 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Th distribution Unsaturated zone 4 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Pm distribution Unsaturated zone 4 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for U distribution Unsaturated zone 4 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Pu distribution Unsaturated zone 4 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Pb distribution Unsaturated zone 4 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Ra distribution Unsaturated zone 4 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Ac distribution Unsaturated zone 4 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Pa distribution Unsaturated zone 4 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Am distribution Page 6-297
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-Y, Parameters for Sensitivity Analysis of Discounted Radionuclides - Resident Farmer Scenario Parameter Parameter Class1 Priority2 Units Basis for Parameter Selection Value Unsaturated zone 4 P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Cm distribution Unsaturated zone 4 P 2 - 0.35 RESRAD Data Collection Handbook Table 3.2 arithmetic mean for total porosity sandstone Unsaturated zone 4 P 2 - 0.27 RESRAD Data Collection Handbook Table 3.2 arithmetic mean for effective porosity sandstone Unsaturated zone 4 P 3 - 0.07 Total porosity minus effective porosity per RESRAD Data field capacity Collection Handbook, Section 4.1 Unsaturated zone 4 P 2 m/yr 10 Upper boundary value from RESRAD Data Collection Handbook, hydraulic Table 5.1 for sandstone conductivity Unsaturated zone 4 P 2 - Bounded NUREG/CR-6697, Attachment C, Table 3.5-1 for sand soil-specific b lognormal-n parameter distribution Water Density of saturated P 1 g/cm3 Normal NUREG/CR-6767, Attachment C, Table C-1 distribution for sand zone distribution Saturated zone P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for H distribution Saturated zone P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Na distribution Saturated zone P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Fe distribution Saturated zone P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Ni distribution Saturated zone P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Nb distribution Page 6-298
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-Y, Parameters for Sensitivity Analysis of Discounted Radionuclides - Resident Farmer Scenario Parameter Parameter Class1 Priority2 Units Basis for Parameter Selection Value Saturated zone P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Tc distribution Saturated zone P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Ag distribution Saturated zone P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Sb distribution Saturated zone P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Pm distribution Saturated zone P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Sm distribution Saturated zone P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Eu distribution Saturated zone P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Gd distribution Saturated zone P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Np distribution Saturated zone P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Th distribution Saturated zone P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Pm distribution Saturated zone P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for U distribution Page 6-299
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-Y, Parameters for Sensitivity Analysis of Discounted Radionuclides - Resident Farmer Scenario Parameter Parameter Class1 Priority2 Units Basis for Parameter Selection Value Saturated zone P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Pu distribution Saturated zone P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Pb distribution Saturated zone P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Ra distribution Saturated zone P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Ac distribution Saturated zone P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Pa distribution Saturated zone P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Am distribution Saturated zone P 1 cm3/g Truncated NUREG/CR-6697, Attachment C distribution lognormal-n coefficient for Cm distribution Saturated zone total P 1 - 0.34 RESRAD Data Collection Handbook Table 3.2 arithmetic mean for porosity sandstone Saturated zone P 1 - 0.27 RESRAD Data Collection Handbook Table 3.2 arithmetic mean for effective porosity sandstone Saturated zone field P 3 - 0.07 Total porosity minus effective porosity per RESRAD Data capacity Collection Handbook, Section 4.1 Saturated zone P 1 m/yr 10 Upper boundary value from RESRAD Data Collection Handbook, hydraulic Table 5.1 for sandstone conductivity Saturated zone P 2 - Bounded NUREG/CR-6697, Attachment C hydraulic gradient lognormal-n distribution Page 6-300
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-Y, Parameters for Sensitivity Analysis of Discounted Radionuclides - Resident Farmer Scenario Parameter Parameter Class1 Priority2 Units Basis for Parameter Selection Value Saturated zone soil- P 2 - Bounded NUREG/CR-6697, Attachment C specific b parameter lognormal-n distribution Length of P 2 m 113 Diameter of a 10,000 m2 contaminated zone contaminated zone parallel to the aquifer flow Water table drop rate P 3 m/yr 0.783 Site specific value applicable to the RSNGS site as reported in the FSAR, Appendix 2C Well-pump intake P 2 m 23 Site specific value applicable to the RSNGS site as reported in the depth (below water FSAR, Appendix 2C table)
Well pumping rate B, P 2 m3/yr Not Used Well pumping rate is not used with the Mass-Balance model for water transport selected - well pumping rate is used to calculated a dilution factor when the Nondisposal model is selected.
Model: non-dispersion NA 3 - MB The mass-balance model was chosen as the most conservative or mass balance since it assumes that all of the radionuclides released from the contaminated zone are withdrawn through the well.
Evapotranspiration P 2 - Uniform NUREG/CR-6697, Attachment C coefficient distribution Humidity in air P 3 g/m3 Not Used Not used when the Radon exposure pathway is suppressed Average annual wind P 2 m/s 3.13 7 mph average annual wind speed for the years of 1930 - 1996 speed reported by the National Climatic Data Center for Stockton, CA (http://www.ncdc.noaa.gov/oa/documentlibrary/wind/wind1996.p df)
Precipitation rate P 2 m/yr 0.38 Mean annual average rainfall measured at Sacramento and Stockton Irrigation mode B 3 - Overhead Behavioral value - ditch irrigation is not the principal method of irrigation in the local region Irrigation rate B 3 m/yr 0.732 Table 8, Estimated Quantity of Water Applied Using Only Sprinkler Systems to Distribute Water: 1998 and 1994, average value for California, 1997 USDA Census of Agriculture, (http://www.nass.usda.gov/census/census97/fris/tbl08.pdf)
Page 6-301
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-Y, Parameters for Sensitivity Analysis of Discounted Radionuclides - Resident Farmer Scenario Parameter Parameter Class1 Priority2 Units Basis for Parameter Selection Value Runoff coefficient P 2 - Uniform NUREG/CR-6697, Attachment C distribution Watershed area for P 3 m2 1.00E+07 The majority of RSNGS site drains into Clay Creek nearby stream or pond Accuracy for water soil NA 3 - 0.001 Default RESRAD v6.22 priority 3 value acceptable for this computation evaluation Ingestion Fruit, vegetable, and M, B 2 kg/yr Triangular NUREG/CR-6697, Attachment C grain consumption distribution rate Leafy vegetable M, B 3 kg/yr 14 Default RESRAD v6.22 Metabolic/ Behavioral priority 3 value consumption acceptable for this evaluation Milk consumption M, B 2 L/yr Triangular NUREG/CR-6697, Attachment C distribution Meat and poultry M, B 3 kg/yr 63 Default RESRAD v6.22 Metabolic/ Behavioral priority 3 value consumption acceptable for this evaluation Fish consumption rate M, B 3 kg/yr 5.4 Default RESRAD v6.22 Metabolic/ Behavioral priority 3 value acceptable for this evaluation Other seafood M, B 3 kg/yr 0.9 Default RESRAD v6.22 Metabolic/ Behavioral priority 3 value consumption rate acceptable for this evaluation Aquatic food B, P 2 - Triangular NUREG/CR-6697, Attachment C contaminated distribution fraction Soil ingestion rate M, B 2 g/yr Triangular NUREG/CR-6697, Attachment C distribution Drinking water intake M, B 2 L/yr Truncated NUREG/CR-6697, Attachment C lognormal-n distribution Storage time for fruits, B 3 d 14 Default RESRAD v6.22 Behavioral priority 3 value acceptable for non-leafy this evaluation vegetables, and grain Storage time for leafy B 3 d 1 Default RESRAD v6.22 Behavioral priority 3 value acceptable for vegetables this evaluation Page 6-302
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-Y, Parameters for Sensitivity Analysis of Discounted Radionuclides - Resident Farmer Scenario Parameter Parameter Class1 Priority2 Units Basis for Parameter Selection Value Storage time for milk B 3 d 1 Default RESRAD v6.22 Behavioral priority 3 value acceptable for this evaluation Storage time for meat B 3 d 20 Default RESRAD v6.22 Behavioral priority 3 value acceptable for this evaluation Storage time for fish B 3 d 7 Default RESRAD v6.22 Behavioral priority 3 value acceptable for this evaluation Storage time for B 3 d 7 Default RESRAD v6.22 Behavioral priority 3 value acceptable for crustacea and this evaluation mollusks Storage time for well B 3 d 1 Default RESRAD v6.22 Behavioral priority 3 value acceptable for water this evaluation Storage time for B 3 d 1 Default RESRAD v6.22 Behavioral priority 3 value acceptable for surface water this evaluation Storage time for B 3 d 45 Default RESRAD v6.22 Behavioral priority 3 value acceptable for livestock fodder this evaluation Drinking water B, P 3 - 1 Default RESRAD v6.22 Behavioral/Physical priority 3 value contaminated acceptable for this evaluation fraction Household water B, P 3 - Not Used Not used when the radon exposure pathway is suppressed contaminated fraction Livestock water B, P 3 - 1 Default RESRAD v6.22 Behavioral priority 3 value acceptable for contaminated this evaluation fraction Irrigation water B, P 3 - 1 Default RESRAD v6.22 Behavioral priority 3 value acceptable for contaminated this evaluation fraction Plant food B, P 3 - -1 Default RESRAD v6.22 Behavioral/Physical priority 3 value contaminated acceptable for this evaluation fraction Meat contaminated B, P 3 - -1 Default RESRAD v6.22 Behavioral/Physical priority 3 value fraction acceptable for this evaluation Milk contaminated B, P 3 - -1 Default RESRAD v6.22 Behavioral/Physical priority 3 value fraction acceptable for this evaluation Page 6-303
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-Y, Parameters for Sensitivity Analysis of Discounted Radionuclides - Resident Farmer Scenario Parameter Parameter Class1 Priority2 Units Basis for Parameter Selection Value Livestock fodder M 3 kg/d 68 Default RESRAD v6.22 Metabolic priority 3 value acceptable for intake rate for meat this evaluation Livestock fodder M 3 kg/d 55 Default RESRAD v6.22 Metabolic priority 3 value acceptable for intake rate for milk this evaluation Livestock water intake M 3 L/d 50 Default RESRAD v6.22 Metabolic priority 3 value acceptable for rate for meat this evaluation Livestock water intake M 3 L/d 160 Default RESRAD v6.22 Metabolic priority 3 value acceptable for rate for milk this evaluation Livestock intake of soil M 3 kg/d 0.5 Default RESRAD v6.22 Metabolic priority 3 value acceptable for this evaluation Mass loading for foliar P 3 g/m3 0.0001 Default RESRAD v6.22 Metabolic priority 3 value acceptable for deposition this evaluation Depth of soil mixing P 2 m Triangular NUREG/CR-6697, Attachment C layer distribution Depth of roots P 1 m Uniform NUREG/CR-6697, Attachment C distribution Groundwater fractional B, P 3 - 1 Default RESRAD v6.22 Behavioral/Physical priority 3 value usage for drinking acceptable for this evaluation water Groundwater fractional B, P 3 - Not Used Not used when the radon exposure pathway is suppressed usage for household water Groundwater fractional B, P 3 - 1 Default RESRAD v6.22 Behavioral/Physical priority 3 value usage for livestock acceptable for this evaluation water Groundwater fractional B, P 3 - 1 Default RESRAD v6.22 Behavioral/Physical priority 3 value usage for irrigation acceptable for this evaluation water Wet weight crop yield P 2 kg/m2 Truncated NUREG/CR-6697, Attachment C for non-leafy plants lognormal-n distribution Wet weight crop yield P 3 kg/m2 1.5 Default RESRAD v6.22 Physical priority 3 value acceptable for for leafy plants this evaluation Wet weight crop yield P 3 kg/m2 1.1 Default RESRAD v6.22 Physical priority 3 value acceptable for for fodder this evaluation Page 6-304
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-Y, Parameters for Sensitivity Analysis of Discounted Radionuclides - Resident Farmer Scenario Parameter Parameter Class1 Priority2 Units Basis for Parameter Selection Value Length of growing P 3 yr 0.17 Default RESRAD v6.22 Physical priority 3 value acceptable for season for non-leafy this evaluation vegetables Length of growing P 3 yr 0.25 Default RESRAD v6.22 Physical priority 3 value acceptable for season for leafy this evaluation vegetables Length of growing P 3 yr 0.08 Default RESRAD v6.22 Physical priority 3 value acceptable for season for fodder this evaluation Translocation factor P 3 - 0.1 Default RESRAD v6.22 Physical priority 3 value acceptable for for non-leafy this evaluation vegetables Translocation factor P 3 - 1 Default RESRAD v6.22 Physical priority 3 value acceptable for for leafy vegetables this evaluation Translocation factor P 3 - 1 Default RESRAD v6.22 Physical priority 3 value acceptable for for fodder this evaluation Weathering removal P 2 1/yr Triangular NUREG/CR-6697, Attachment C constant distribution Dry foliar interception P 3 - 0.25 Default RESRAD v6.22 Physical priority 3 value acceptable for fraction for non-leafy this evaluation vegetables Dry foliar interception P 3 - 0.25 Default RESRAD v6.22 Physical priority 3 value acceptable for fraction for leafy this evaluation vegetables Dry foliar interception P 3 - 0.25 Default RESRAD v6.22 Physical priority 3 value acceptable for fraction for fodder this evaluation Wet foliar interception P 3 - 0.25 Default RESRAD v6.22 Physical priority 3 value acceptable for fraction for non-leafy this evaluation vegetables Wet foliar interception P 2 - Triangular NUREG/CR-6697, Attachment C fraction for leafy distribution vegetables Wet foliar interception P 3 - 0.25 Default RESRAD v6.22 Physical priority 3 value acceptable for fraction for fodder this evaluation Slope factor - external M 3 (risk/yr)/ Nuclide specific Default RESRAD v6.22 Metabolic priority 3 value acceptable for (pCi/g) this evaluation Page 6-305
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-Y, Parameters for Sensitivity Analysis of Discounted Radionuclides - Resident Farmer Scenario Parameter Parameter Class1 Priority2 Units Basis for Parameter Selection Value Slope factor - M 3 risk/pCi Nuclide specific Default RESRAD v6.22 Metabolic priority 3 value acceptable for inhalation this evaluation Slope factor - M 3 risk/pCi Nuclide specific Default RESRAD v6.22 Metabolic priority 3 value acceptable for ingestion this evaluation Plant transfer factor P 1 pCi/g Truncated NUREG/CR-6697, Attachment C, Table 6.2-1 for H plant(wet) lognormal-n per pCi/g distribution soil (dry)
Plant transfer factor P 1 pCi/g Truncated NUREG/CR-6697, Attachment C, Table 6.2-1 for Na plant(wet) lognormal-n per pCi/g distribution soil (dry)
Plant transfer factor P 1 pCi/g Truncated NUREG/CR-6697, Attachment C, Table 6.2-1 for Fe plant(wet) lognormal-n per pCi/g distribution soil (dry)
Plant transfer factor P 1 pCi/g Truncated NUREG/CR-6697, Attachment C, Table 6.2-1 for Ni plant(wet) lognormal-n per pCi/g distribution soil (dry)
Plant transfer factor P 1 pCi/g Truncated NUREG/CR-6697, Attachment C, Table 6.2-1 for Nb plant(wet) lognormal-n per pCi/g distribution soil (dry)
Plant transfer factor P 1 pCi/g Truncated NUREG/CR-6697, Attachment C, Table 6.2-1 for Tc plant(wet) lognormal-n per pCi/g distribution soil (dry)
Plant transfer factor P 1 pCi/g Truncated NUREG/CR-6697, Attachment C, Table 6.2-1 for Ag plant(wet) lognormal-n per pCi/g distribution soil (dry)
Plant transfer factor P 1 pCi/g Truncated NUREG/CR-6697, Attachment C, Table 6.2-1 for Sb plant(wet) lognormal-n per pCi/g distribution soil (dry)
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Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-Y, Parameters for Sensitivity Analysis of Discounted Radionuclides - Resident Farmer Scenario Parameter Parameter Class1 Priority2 Units Basis for Parameter Selection Value Plant transfer factor P 1 pCi/g Truncated NUREG/CR-6697, Attachment C, Table 6.2-1 for Pm plant(wet) lognormal-n per pCi/g distribution soil (dry)
Plant transfer factor P 1 - pCi/g Truncated NUREG/CR-6697, Attachment C, Table 6.2-1 for Sm plant(wet) lognormal-n per pCi/g distribution soil (dry)
Plant transfer factor P 1 pCi/g Truncated NUREG/CR-6697, Attachment C, Table 6.2-1 for Eu plant(wet) lognormal-n per pCi/g distribution soil (dry)
Plant transfer factor P 1 pCi/g Truncated NUREG/CR-6697, Attachment C, Table 6.2-1 for Gd plant(wet) lognormal-n per pCi/g distribution soil (dry)
Plant transfer factor P 1 pCi/g Truncated NUREG/CR-6697, Attachment C, Table 6.2-1 for Np plant(wet) lognormal-n per pCi/g distribution soil (dry)
Plant transfer factor P 1 pCi/g Truncated NUREG/CR-6697, Attachment C, Table 6.2-1 for Th plant(wet) lognormal-n per pCi/g distribution soil (dry)
Plant transfer factor P 1 pCi/g Truncated NUREG/CR-6697, Attachment C, Table 6.2-1 for U plant(wet) lognormal-n per pCi/g distribution soil (dry)
Plant transfer factor P 1 pCi/g Truncated NUREG/CR-6697, Attachment C, Table 6.2-1 for Pu plant(wet) lognormal-n per pCi/g distribution soil (dry)
Plant transfer factor P 1 pCi/g Truncated NUREG/CR-6697, Attachment C, Table 6.2-1 for Pb plant(wet) lognormal-n per pCi/g distribution soil (dry)
Page 6-307
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-Y, Parameters for Sensitivity Analysis of Discounted Radionuclides - Resident Farmer Scenario Parameter Parameter Class1 Priority2 Units Basis for Parameter Selection Value Plant transfer factor P 1 pCi/g Truncated NUREG/CR-6697, Attachment C, Table 6.2-1 for Ra plant(wet) lognormal-n per pCi/g distribution soil (dry)
Plant transfer factor P 1 pCi/g Truncated NUREG/CR-6697, Attachment C, Table 6.2-1 for Ac plant(wet) lognormal-n per pCi/g distribution soil (dry)
Plant transfer factor P 1 pCi/g Truncated NUREG/CR-6697, Attachment C, Table 6.2-1 for Pa plant(wet) lognormal-n per pCi/g distribution soil (dry)
Plant transfer factor P 1 pCi/g Truncated NUREG/CR-6697, Attachment C, Table 6.2-1 for Am plant(wet) lognormal-n per pCi/g distribution soil (dry)
Plant transfer factor P 1 pCi/g Truncated NUREG/CR-6697, Attachment C, Table 6.2-1 for Cm plant(wet) lognormal-n per pCi/g distribution soil (dry)
Meat transfer factor for P 2 (pCi/kg)/ Truncated NUREG/CR-6697, Attachment C, Table 6.3-1 H (pCi/d) lognormal-n distribution Meat transfer factor for P 2 (pCi/kg)/ Truncated NUREG/CR-6697, Attachment C, Table 6.3-1 Na (pCi/d) lognormal-n distribution Meat transfer factor for P 2 (pCi/kg)/ Truncated NUREG/CR-6697, Attachment C, Table 6.3-1 Fe (pCi/d) lognormal-n distribution Meat transfer factor for P 2 (pCi/kg)/ Truncated NUREG/CR-6697, Attachment C, Table 6.3-1 Ni (pCi/d) lognormal-n distribution Meat transfer factor for P 2 (pCi/kg)/ Truncated NUREG/CR-6697, Attachment C, Table 6.3-1 Nb (pCi/d) lognormal-n distribution Page 6-308
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-Y, Parameters for Sensitivity Analysis of Discounted Radionuclides - Resident Farmer Scenario Parameter Parameter Class1 Priority2 Units Basis for Parameter Selection Value Meat transfer factor for P 2 (pCi/kg)/ Truncated NUREG/CR-6697, Attachment C, Table 6.3-1 Tc (pCi/d) lognormal-n distribution Meat transfer factor for P 2 (pCi/kg)/ Truncated NUREG/CR-6697, Attachment C, Table 6.3-1 Ag (pCi/d) lognormal-n distribution Meat transfer factor for P 2 (pCi/kg)/ Truncated NUREG/CR-6697, Attachment C, Table 6.3-1 Sb (pCi/d) lognormal-n distribution Meat transfer factor for P 2 (pCi/kg)/ Truncated NUREG/CR-6697, Attachment C, Table 6.3-1 Pm (pCi/d) lognormal-n distribution Meat transfer factor for P 2 (pCi/kg)/ Truncated NUREG/CR-6697, Attachment C, Table 6.3-1 Sm (pCi/d) lognormal-n distribution Meat transfer factor for P 2 (pCi/kg)/ Truncated NUREG/CR-6697, Attachment C, Table 6.3-1 Eu (pCi/d) lognormal-n distribution Meat transfer factor for P 2 (pCi/kg)/ Truncated NUREG/CR-6697, Attachment C, Table 6.3-1 Gd (pCi/d) lognormal-n distribution Meat transfer factor for P 2 (pCi/kg)/ Truncated NUREG/CR-6697, Attachment C, Table 6.3-1 Np (pCi/d) lognormal-n distribution Meat transfer factor for P 2 (pCi/kg)/ Truncated NUREG/CR-6697, Attachment C, Table 6.3-1 Th (pCi/d) lognormal-n distribution Meat transfer factor for P 2 (pCi/kg)/ Truncated NUREG/CR-6697, Attachment C, Table 6.3-1 U (pCi/d) lognormal-n distribution Meat transfer factor for P 2 (pCi/kg)/ Truncated NUREG/CR-6697, Attachment C, Table 6.3-1 Pu (pCi/d) lognormal-n distribution Page 6-309
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-Y, Parameters for Sensitivity Analysis of Discounted Radionuclides - Resident Farmer Scenario Parameter Parameter Class1 Priority2 Units Basis for Parameter Selection Value Meat transfer factor for P 2 (pCi/kg)/ Truncated NUREG/CR-6697, Attachment C, Table 6.3-1 Pb (pCi/d) lognormal-n distribution Meat transfer factor for P 2 (pCi/kg)/ Truncated NUREG/CR-6697, Attachment C, Table 6.3-1 Ra (pCi/d) lognormal-n distribution Meat transfer factor for P 2 (pCi/kg)/ Truncated NUREG/CR-6697, Attachment C, Table 6.3-1 Ac (pCi/d) lognormal-n distribution Meat transfer factor for P 2 (pCi/kg)/ Truncated NUREG/CR-6697, Attachment C, Table 6.3-1 Pa (pCi/d) lognormal-n distribution Meat transfer factor for P 2 (pCi/kg)/ Truncated NUREG/CR-6697, Attachment C, Table 6.3-1 Am (pCi/d) lognormal-n distribution Meat transfer factor for P 2 (pCi/kg)/ Truncated NUREG/CR-6697, Attachment C, Table 6.3-1 Cm (pCi/d) lognormal-n distribution Milk transfer factor for P 2 (pCi/L)/ Truncated NUREG/CR-6697, Attachment C, Table 6.4-1 H (pCi/d) lognormal-n distribution Milk transfer factor for P 2 (pCi/L)/ Truncated NUREG/CR-6697, Attachment C, Table 6.4-1 Na (pCi/d) lognormal-n distribution Milk transfer factor for P 2 (pCi/L)/ Truncated NUREG/CR-6697, Attachment C, Table 6.4-1 Fe (pCi/d) lognormal-n distribution Milk transfer factor for P 2 (pCi/L)/ Truncated NUREG/CR-6697, Attachment C, Table 6.4-1 Ni (pCi/d) lognormal-n distribution Milk transfer factor for P 2 (pCi/L)/ Truncated NUREG/CR-6697, Attachment C, Table 6.4-1 Nb (pCi/d) lognormal-n distribution Page 6-310
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-Y, Parameters for Sensitivity Analysis of Discounted Radionuclides - Resident Farmer Scenario Parameter Parameter Class1 Priority2 Units Basis for Parameter Selection Value Milk transfer factor for P 2 (pCi/L)/ Truncated NUREG/CR-6697, Attachment C, Table 6.4-1 Tc (pCi/d) lognormal-n distribution Milk transfer factor for P 2 (pCi/L)/ Truncated NUREG/CR-6697, Attachment C, Table 6.4-1 Ag (pCi/d) lognormal-n distribution Milk transfer factor for P 2 (pCi/L)/ Truncated NUREG/CR-6697, Attachment C, Table 6.4-1 Sb (pCi/d) lognormal-n distribution Milk transfer factor for P 2 (pCi/L)/ Truncated NUREG/CR-6697, Attachment C, Table 6.4-1 Pm (pCi/d) lognormal-n distribution Milk transfer factor for P 2 (pCi/L)/ Truncated NUREG/CR-6697, Attachment C, Table 6.4-1 Sm (pCi/d) lognormal-n distribution Milk transfer factor for P 2 (pCi/L)/ Truncated NUREG/CR-6697, Attachment C, Table 6.4-1 Eu (pCi/d) lognormal-n distribution Milk transfer factor for P 2 (pCi/L)/ Truncated NUREG/CR-6697, Attachment C, Table 6.4-1 Gd (pCi/d) lognormal-n distribution Milk transfer factor for P 2 (pCi/L)/ Truncated NUREG/CR-6697, Attachment C, Table 6.4-1 Np (pCi/d) lognormal-n distribution Milk transfer factor for P 2 (pCi/L)/ Truncated NUREG/CR-6697, Attachment C, Table 6.4-1 Th (pCi/d) lognormal-n distribution Milk transfer factor for P 2 (pCi/L)/ Truncated NUREG/CR-6697, Attachment C, Table 6.4-1 Pu (pCi/d) lognormal-n distribution Milk transfer factor for P 2 (pCi/L)/ Truncated NUREG/CR-6697, Attachment C, Table 6.4-1 Pb (pCi/d) lognormal-n distribution Page 6-311
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-Y, Parameters for Sensitivity Analysis of Discounted Radionuclides - Resident Farmer Scenario Parameter Parameter Class1 Priority2 Units Basis for Parameter Selection Value Milk transfer factor for P 2 (pCi/L)/ Truncated NUREG/CR-6697, Attachment C, Table 6.4-1 Ra (pCi/d) lognormal-n distribution Milk transfer factor for P 2 (pCi/L)/ Truncated NUREG/CR-6697, Attachment C, Table 6.4-1 Ac (pCi/d) lognormal-n distribution Milk transfer factor for P 2 (pCi/L)/ Truncated NUREG/CR-6697, Attachment C, Table 6.4-1 Pa (pCi/d) lognormal-n distribution Milk transfer factor for P 2 (pCi/L)/ Truncated NUREG/CR-6697, Attachment C, Table 6.4-1 Am (pCi/d) lognormal-n distribution Milk transfer factor for P 2 (pCi/L)/ Truncated NUREG/CR-6697, Attachment C, Table 6.4-1 Cm (pCi/d) lognormal-n distribution H bioaccumulation P 2 (pCi/kg)/ Lognormal-n NUREG/CR-6697, Attachment C, Table 6.8-1 factor for fish (pCi/L) distribution Na bioaccumulation P 2 (pCi/kg)/ Lognormal-n NUREG/CR-6697, Attachment C, Table 6.8-1 factor for fish (pCi/L) distribution Fe bioaccumulation P 2 (pCi/kg)/ Lognormal-n NUREG/CR-6697, Attachment C, Table 6.8-1 factor for fish (pCi/L) distribution Ni bioaccumulation P 2 (pCi/kg)/ Lognormal-n NUREG/CR-6697, Attachment C, Table 6.8-1 factor for fish (pCi/L) distribution Nb bioaccumulation P 2 (pCi/kg)/ Lognormal-n NUREG/CR-6697, Attachment C, Table 6.8-1 factor for fish (pCi/L) distribution Tc bioaccumulation P 2 (pCi/kg)/ Lognormal-n NUREG/CR-6697, Attachment C, Table 6.8-1 factor for fish (pCi/L) distribution Ag bioaccumulation P 2 (pCi/kg)/ Lognormal-n NUREG/CR-6697, Attachment C, Table 6.8-1 factor for fish (pCi/L) distribution Sb bioaccumulation P 2 (pCi/kg)/ Lognormal-n NUREG/CR-6697, Attachment C, Table 6.8-1 factor for fish (pCi/L) distribution Pm bioaccumulation P 2 (pCi/kg)/ Lognormal-n NUREG/CR-6697, Attachment C, Table 6.8-1 factor for fish (pCi/L) distribution Sm bioaccumulation P 2 (pCi/kg)/ Lognormal-n NUREG/CR-6697, Attachment C, Table 6.8-1 factor for fish (pCi/L) distribution Page 6-312
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-Y, Parameters for Sensitivity Analysis of Discounted Radionuclides - Resident Farmer Scenario Parameter Parameter Class1 Priority2 Units Basis for Parameter Selection Value Eu bioaccumulation P 2 (pCi/kg)/ Lognormal-n NUREG/CR-6697, Attachment C, Table 6.8-1 factor for fish (pCi/L) distribution Gd bioaccumulation P 2 (pCi/kg)/ Lognormal-n NUREG/CR-6697, Attachment C, Table 6.8-1 factor for fish (pCi/L) distribution Np bioaccumulation P 2 (pCi/kg)/ Lognormal-n NUREG/CR-6697, Attachment C, Table 6.8-1 factor for fish (pCi/L) distribution Th bioaccumulation P 2 (pCi/kg)/ Lognormal-n NUREG/CR-6697, Attachment C, Table 6.8-1 factor for fish (pCi/L) distribution U bioaccumulation P 2 (pCi/kg)/ Lognormal-n NUREG/CR-6697, Attachment C, Table 6.8-1 factor for fish (pCi/L) distribution Pu bioaccumulation P 2 (pCi/kg)/ Lognormal-n NUREG/CR-6697, Attachment C, Table 6.8-1 factor for fish (pCi/L) distribution Pb bioaccumulation P 2 (pCi/kg)/ Lognormal-n NUREG/CR-6697, Attachment C, Table 6.8-1 factor for fish (pCi/L) distribution Ra bioaccumulation P 2 (pCi/kg)/ Lognormal-n NUREG/CR-6697, Attachment C, Table 6.8-1 factor for fish (pCi/L) distribution Ac bioaccumulation P 2 (pCi/kg)/ Lognormal-n NUREG/CR-6697, Attachment C, Table 6.8-1 factor for fish (pCi/L) distribution Pa bioaccumulation P 2 (pCi/kg)/ Lognormal-n NUREG/CR-6697, Attachment C, Table 6.8-1 factor for fish (pCi/L) distribution Am bioaccumulation P 2 (pCi/kg)/ Lognormal-n NUREG/CR-6697, Attachment C, Table 6.8-1 factor for fish (pCi/L) distribution Cm bioaccumulation P 2 (pCi/kg)/ Lognormal-n NUREG/CR-6697, Attachment C, Table 6.8-1 factor for fish (pCi/L) distribution H bioaccumulation P 3 (pCi/kg)/ 1 Default RESRAD v6.22 Physical priority 3 value acceptable for factor for crustacea (pCi/L) this evaluation and mollusks Na bioaccumulation P 3 (pCi/kg)/ 200 Default RESRAD v6.22 Physical priority 3 value acceptable for factor for crustacea (pCi/L) this evaluation and mollusks Fe bioaccumulation P 3 (pCi/kg)/ 3200 Default RESRAD v6.22 Physical priority 3 value acceptable for factor for crustacea (pCi/L) this evaluation and mollusks Page 6-313
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-Y, Parameters for Sensitivity Analysis of Discounted Radionuclides - Resident Farmer Scenario Parameter Parameter Class1 Priority2 Units Basis for Parameter Selection Value Ni bioaccumulation P 3 (pCi/kg)/ 100 Default RESRAD v6.22 Physical priority 3 value acceptable for factor for crustacea (pCi/L) this evaluation and mollusks Nb bioaccumulation P 3 (pCi/kg)/ 100 Default RESRAD v6.22 Physical priority 3 value acceptable for factor for crustacea (pCi/L) this evaluation and mollusks Tc bioaccumulation P 3 (pCi/kg)/ 5 Default RESRAD v6.22 Physical priority 3 value acceptable for factor for crustacea (pCi/L) this evaluation and mollusks Ag bioaccumulation P 3 (pCi/kg)/ 770 Default RESRAD v6.22 Physical priority 3 value acceptable for factor for crustacea (pCi/L) this evaluation and mollusks Sb bioaccumulation P 3 (pCi/kg)/ 10 Default RESRAD v6.22 Physical priority 3 value acceptable for factor for crustacea (pCi/L) this evaluation and mollusks Pm bioaccumulation P 3 (pCi/kg)/ 1000 Default RESRAD v6.22 Physical priority 3 value acceptable for factor for crustacea (pCi/L) this evaluation and mollusks Sm bioaccumulation P 3 (pCi/kg)/ 1000 Default RESRAD v6.22 Physical priority 3 value acceptable for factor for crustacea (pCi/L) this evaluation and mollusks Eu bioaccumulation P 3 (pCi/kg)/ 1000 Default RESRAD v6.22 Physical priority 3 value acceptable for factor for crustacea (pCi/L) this evaluation and mollusks Gd bioaccumulation P 3 (pCi/kg)/ 1000 Default RESRAD v6.22 Physical priority 3 value acceptable for factor for crustacea (pCi/L) this evaluation and mollusks Np bioaccumulation P 3 (pCi/kg)/ 400 Default RESRAD v6.22 Physical priority 3 value acceptable for factor for crustacea (pCi/L) this evaluation and mollusks Th bioaccumulation P 3 (pCi/kg)/ 500 Default RESRAD v6.22 Physical priority 3 value acceptable for factor for crustacea (pCi/L) this evaluation and mollusks Page 6-314
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-Y, Parameters for Sensitivity Analysis of Discounted Radionuclides - Resident Farmer Scenario Parameter Parameter Class1 Priority2 Units Basis for Parameter Selection Value Pm bioaccumulation P 3 (pCi/kg)/ 1000 Default RESRAD v6.22 Physical priority 3 value acceptable for factor for crustacea (pCi/L) this evaluation and mollusks U bioaccumulation P 3 (pCi/kg)/ 60 Default RESRAD v6.22 Physical priority 3 value acceptable for factor for crustacea (pCi/L) this evaluation and mollusks Pu bioaccumulation P 3 (pCi/kg)/ 100 Default RESRAD v6.22 Physical priority 3 value acceptable for factor for crustacea (pCi/L) this evaluation and mollusks Pb bioaccumulation P 3 (pCi/kg)/ 100 Default RESRAD v6.22 Physical priority 3 value acceptable for factor for crustacea (pCi/L) this evaluation and mollusks Ra bioaccumulation P 3 (pCi/kg)/ 250 Default RESRAD v6.22 Physical priority 3 value acceptable for factor for crustacea (pCi/L) this evaluation and mollusks Ac bioaccumulation P 3 (pCi/kg)/ 1000 Default RESRAD v6.22 Physical priority 3 value acceptable for factor for crustacea (pCi/L) this evaluation and mollusks Pa bioaccumulation P 3 (pCi/kg)/ 110 Default RESRAD v6.22 Physical priority 3 value acceptable for factor for crustacea (pCi/L) this evaluation and mollusks Am bioaccumulation P 3 (pCi/kg)/ 1000 Default RESRAD v6.22 Physical priority 3 value acceptable for factor for crustacea (pCi/L) this evaluation and mollusks Cm bioaccumulation P 3 (pCi/kg)/ 1000 Default RESRAD v6.22 Physical priority 3 value acceptable for factor for crustacea (pCi/L) this evaluation and mollusks Occupancy (Inhalation & External Parameters)
Inhalation rate M, B 3 m3/yr Triangular NUREG/CR-6697, Attachment C distribution Inhalation dose M 3 mrem/pCi Nuclide specific Metabolic RESRAD v6.22 default priority 3 value acceptable for conversion factors this evaluation Ingestion dose M 3 mrem/pCi Nuclide specific Metabolic RESRAD v6.22 default priority 3 value acceptable for conversion factors this evaluation Page 6-315
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-Y, Parameters for Sensitivity Analysis of Discounted Radionuclides - Resident Farmer Scenario Parameter Parameter Class1 Priority2 Units Basis for Parameter Selection Value Mass loading for P, B 2 g/m3 Continuous NUREG/CR-6697, Attachment C inhalation linear distribution Indoor dust filtration P, B 2 - Uniform NUREG/CR-6697, Attachment C factor distribution External gamma P 2 - Bounded NUREG/CR-6697, Attachment C shielding factor lognormal-n distribution Building foundation P 3 m Not Used The Radon Exposure Pathway is not used thickness Building foundation P 3 g/m3 Not Used The Radon Exposure Pathway is not used bulk density Building foundation P 3 - Not Used The Radon Exposure Pathway is not used total porosity Building foundation P 3 - Not Used The Radon Exposure Pathway is not used volumetric water content Building foundation P 3 m2/s Not Used The Radon Exposure Pathway is not used radon diffusion coefficient Contaminated soil P 3 m2/s Not Used The Radon Exposure Pathway is not used zone radon diffusion coefficient Radon vertical P 3 m Not Used The Radon Exposure Pathway is not used dimension of mixing Building air exchange P, B 3 1/hr Not Used The Radon Exposure Pathway is not used rate Building (room) height P 3 m Not Used The Radon Exposure Pathway is not used Building indoor area P 3 - Not Used The Radon Exposure Pathway is not used factor Foundation depth P 3 m Not Used The Radon Exposure Pathway is not used below ground surface Radon-222 emanation P 3 - Not Used The Radon Exposure Pathway is not used coefficient Page 6-316
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-Y, Parameters for Sensitivity Analysis of Discounted Radionuclides - Resident Farmer Scenario Parameter Parameter Class1 Priority2 Units Basis for Parameter Selection Value Radon-220 emanation P 3 - Not Used The Radon Exposure Pathway is not used coefficient Indoor time fraction B 3 - 0.50 Default RESRAD v6.22 Priority 3 Behavioral value acceptable for this evaluation Outdoor time fraction B 3 - 0.25 Default RESRAD v6.22 Priority 3 Behavioral priority 3 value acceptable for this evaluation Exposure duration B 3 yr 30 Behavioral RESRAD v6.22 default priority 3 value acceptable for this evaluation 1
Parameter Classification: P = Physical; B = Behavioral; M = Metabolic 2
1 = high priority parameter, 2 = medium priority parameter, 3 = low priority parameter Page 6-317
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-Y, Parameters for Sensitivity Analysis of Discounted Radionuclides - Resident Farmer Scenario This page intentionally left blank Page 6-318
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-Z, Distribution Parameters and Sensitive Parameter Results for Discounted Radionuclides -
Resident Farmer Scenario Distributions Statistical Parameters2 25% or Assigned 1
Parameter Priority Distribution PRCC3 75% Parameter 1 2 3 4 Quartile Value Density of contaminated zone 1 Normal 1.330 0.202 - - 0.58 75% 1.46 Density of saturated zone 1 Normal 1.578 0.158 - - 0.10 No Distribution Contaminated zone distribution 1 Truncated lognormal-n -2.81 0.5 0.001 0.999 -0.08 No Distribution coefficient for H-3 Contaminated zone distribution 1 Truncated lognormal-n 5.04 3.22 0.001 0.999 0.04 No Distribution coefficient for Na-22 Contaminated zone distribution 1 Truncated lognormal-n 5.34 2.67 0.001 0.999 -0.11 No Distribution coefficient for Fe-55 Contaminated zone distribution 1 Truncated lognormal-n 6.05 1.46 0.001 0.999 -0.06 No Distribution coefficient for Ni-59 Contaminated zone distribution 1 Truncated lognormal-n 5.94 3.22 0.001 0.999 -0.09 No Distribution coefficient for Nb-94 Contaminated zone distribution 1 Truncated lognormal-n -0.67 3.16 0.001 0.999 0.69 75% 4.21 coefficient for Tc-99 Contaminated zone distribution 1 Truncated lognormal-n 5.38 2.10 0.001 0.999 -0.02 No Distribution coefficient for Ag-108m Contaminated zone distribution 1 Truncated lognormal-n 5.94 3.22 0.001 0.999 0.17 No Distribution coefficient for Sb-125 Contaminated zone distribution 1 Truncated lognormal-n 6.72 3.22 0.001 0.999 0.09 No Distribution coefficient for Pm-147 Contaminated zone distribution 1 Truncated lognormal-n 6.72 3.22 0.001 0.999 0.17 No Distribution coefficient for Sm-147 Contaminated zone distribution 1 Truncated lognormal-n 6.72 3.22 0.001 0.999 0.17 No Distribution coefficient for Eu-152 Contaminated zone distribution 1 Truncated lognormal-n 6.72 3.22 0.001 0.999 0.13 No Distribution coefficient for Eu-154 Contaminated zone distribution 1 Truncated lognormal-n 6.72 3.22 0.001 0.999 -0.10 No Distribution coefficient for Eu-155 Contaminated zone distribution 1 Truncated lognormal-n 6.72 3.22 0.001 0.999 -0.06 No Distribution coefficient for Gd-152 Contaminated zone distribution 1 Truncated lognormal-n 2.84 2.25 0.001 0.999 0.47 75% 77.8 coefficient for Np-237 Contaminated zone distribution 1 Truncated lognormal-n 8.68 3.62 0.001 0.999 -0.27 25% 507 coefficient for Th-228 Contaminated zone distribution 1 Truncated lognormal-n 8.68 3.62 0.001 0.999 -0.09 No Distribution coefficient for Th-229 Contaminated zone distribution 1 Truncated lognormal-n 8.68 3.62 0.001 0.999 -0.06 No Distribution coefficient for Th-230 Contaminated zone distribution 1 Truncated lognormal-n 8.68 3.62 0.001 0.999 0.12 No Distribution coefficient for Th-232 Contaminated zone distribution 1 Truncated lognormal-n 4.84 3.13 0.001 0.999 0.21 No Distribution coefficient for U-233 Page 6-319
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-Z, Distribution Parameters and Sensitive Parameter Results for Discounted Radionuclides -
Resident Farmer Scenario Distributions Statistical Parameters2 25% or Assigned 1
Parameter Priority Distribution PRCC3 75% Parameter 1 2 3 4 Quartile Value Contaminated zone distribution 1 Truncated lognormal-n 4.84 3.13 0.001 0.999 0.14 No Distribution coefficient for U-234 Contaminated zone distribution 1 Truncated lognormal-n 4.84 3.13 0.001 0.999 -0.14 No Distribution coefficient for U-235 Contaminated zone distribution 1 Truncated lognormal-n 4.84 3.13 0.001 0.999 0.02 No Distribution coefficient for U-236 Contaminated zone distribution 1 Truncated lognormal-n 4.84 3.13 0.001 0.999 0.06 No Distribution coefficient for U-238 Contaminated zone distribution 1 Truncated lognormal-n 6.86 1.89 0.001 0.999 0.21 No Distribution coefficient for Pu-238 Contaminated zone distribution 1 Truncated lognormal-n 6.86 1.89 0.001 0.999 0.00 No Distribution coefficient for Pu-239 Contaminated zone distribution 1 Truncated lognormal-n 6.86 1.89 0.001 0.999 -0.13 No Distribution coefficient for Pu-240 Contaminated zone distribution 1 Truncated lognormal-n 6.86 1.89 0.001 0.999 -0.04 No Distribution coefficient for Pu-241 Contaminated zone distribution 1 Truncated lognormal-n 6.86 1.89 0.001 0.999 -0.03 No Distribution coefficient for Pu-242 Contaminated zone distribution 1 Truncated lognormal-n 7.78 2.76 0.001 0.999 -0.01 No Distribution coefficient for Pb-210 Contaminated zone distribution 1 Truncated lognormal-n 8.17 1.70 0.001 0.999 0.07 No Distribution coefficient for Ra-226 Contaminated zone distribution 1 Truncated lognormal-n 8.17 1.70 0.001 0.999 -0.02 No Distribution coefficient for Ra-228 Contaminated zone distribution 1 Truncated lognormal-n 6.72 3.22 0.001 0.999 -0.02 No Distribution coefficient for Ac-227 Contaminated zone distribution 1 Truncated lognormal-n 5.94 3.22 0.001 0.999 -0.15 No Distribution coefficient for Pa-231 Contaminated zone distribution 1 Truncated lognormal-n 7.28 3.15 0.001 0.999 -0.02 No Distribution coefficient for Am-241 Contaminated zone distribution 1 Truncated lognormal-n 8.82 1.82 0.001 0.999 0.08 No Distribution coefficient for Cm-244 Unsaturated zone 1 distribution 1 Truncated lognormal-n -2.81 0.5 0.001 0.999 0.26 75% 0.0840 coefficient for H-3 Unsaturated zone 1 distribution 1 Truncated lognormal-n 5.04 3.22 0.001 0.999 -0.04 No Distribution coefficient for Na-22 Unsaturated zone 1 distribution 1 Truncated lognormal-n 5.34 2.67 0.001 0.999 0.07 No Distribution coefficient for Fe-55 Unsaturated zone 1 distribution 1 Truncated lognormal-n 6.05 1.46 0.001 0.999 -0.23 No Distribution coefficient for Ni-59 Unsaturated zone 1 distribution 1 Truncated lognormal-n 5.94 3.22 0.001 0.999 -0.02 No Distribution coefficient for Nb-94 Page 6-320
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-Z, Distribution Parameters and Sensitive Parameter Results for Discounted Radionuclides -
Resident Farmer Scenario Distributions Statistical Parameters2 25% or Assigned 1
Parameter Priority Distribution PRCC3 75% Parameter 1 2 3 4 Quartile Value Unsaturated zone 1 distribution 1 Truncated lognormal-n -0.67 3.16 0.001 0.999 0.08 No Distribution coefficient for Tc-99 Unsaturated zone 1 distribution 1 Truncated lognormal-n 5.38 2.10 0.001 0.999 -0.21 No Distribution coefficient for Ag-108m Unsaturated zone 1 distribution 1 Truncated lognormal-n 5.94 3.22 0.001 0.999 -0.04 No Distribution coefficient for Sb-125 Unsaturated zone 1 distribution 1 Truncated lognormal-n 6.72 3.22 0.001 0.999 -0.02 No Distribution coefficient for Pm-147 Unsaturated zone 1 distribution 1 Truncated lognormal-n 6.72 3.22 0.001 0.999 -0.08 No Distribution coefficient for Sm-147 Unsaturated zone 1 distribution 1 Truncated lognormal-n 6.72 3.22 0.001 0.999 0.02 No Distribution coefficient for Eu-152 Unsaturated zone 1 distribution 1 Truncated lognormal-n 6.72 3.22 0.001 0.999 0.00 No Distribution coefficient for Eu-154 Unsaturated zone 1 distribution 1 Truncated lognormal-n 6.72 3.22 0.001 0.999 0.06 No Distribution coefficient for Eu-155 Unsaturated zone 1 distribution 1 Truncated lognormal-n 6.72 3.22 0.001 0.999 0.01 No Distribution coefficient for Gd-152 Unsaturated zone 1 distribution 1 Truncated lognormal-n 2.84 2.25 0.001 0.999 0.06 No Distribution coefficient for Np-237 Unsaturated zone 1 distribution 1 Truncated lognormal-n 8.68 3.62 0.001 0.999 0.03 No Distribution coefficient for Th-228 Unsaturated zone 1 distribution 1 Truncated lognormal-n 8.68 3.62 0.001 0.999 -0.29 25% 504 coefficient for Th-229 Unsaturated zone 1 distribution 1 Truncated lognormal-n 8.68 3.62 0.001 0.999 0.18 No Distribution coefficient for Th-230 Unsaturated zone 1 distribution 1 Truncated lognormal-n 8.68 3.62 0.001 0.999 -0.06 No Distribution coefficient for Th-232 Unsaturated zone 1 distribution 1 Truncated lognormal-n 4.84 3.13 0.001 0.999 0.00 No Distribution coefficient for U-233 Unsaturated zone 1 distribution 1 Truncated lognormal-n 4.84 3.13 0.001 0.999 -0.05 No Distribution coefficient for U-234 Unsaturated zone 1 distribution 1 Truncated lognormal-n 4.84 3.13 0.001 0.999 -0.05 No Distribution coefficient for U-235 Unsaturated zone 1 distribution 1 Truncated lognormal-n 4.84 3.13 0.001 0.999 -0.13 No Distribution coefficient for U-236 Unsaturated zone 1 distribution 1 Truncated lognormal-n 4.84 3.13 0.001 0.999 0.02 No Distribution coefficient for U-238 Unsaturated zone 1 distribution 1 Truncated lognormal-n 6.86 1.89 0.001 0.999 0.21 No Distribution coefficient for Pu-238 Unsaturated zone 1 distribution 1 Truncated lognormal-n 6.86 1.89 0.001 0.999 0.12 No Distribution coefficient for Pu-239 Page 6-321
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-Z, Distribution Parameters and Sensitive Parameter Results for Discounted Radionuclides -
Resident Farmer Scenario Distributions Statistical Parameters2 25% or Assigned 1
Parameter Priority Distribution PRCC3 75% Parameter 1 2 3 4 Quartile Value Unsaturated zone 1 distribution 1 Truncated lognormal-n 6.86 1.89 0.001 0.999 -0.08 No Distribution coefficient for Pu-240 Unsaturated zone 1 distribution 1 Truncated lognormal-n 6.86 1.89 0.001 0.999 -0.25 No Distribution coefficient for Pu-241 Unsaturated zone 1 distribution 1 Truncated lognormal-n 6.86 1.89 0.001 0.999 0.09 No Distribution coefficient for Pu-242 Unsaturated zone 1 distribution 1 Truncated lognormal-n 7.78 2.76 0.001 0.999 -0.08 No Distribution coefficient for Pb-210 Unsaturated zone 1 distribution 1 Truncated lognormal-n 8.17 1.70 0.001 0.999 -0.11 No Distribution coefficient for Ra-226 Unsaturated zone 1 distribution 1 Truncated lognormal-n 8.17 1.70 0.001 0.999 -0.12 No Distribution coefficient for Ra-228 Unsaturated zone 1 distribution 1 Truncated lognormal-n 6.72 3.22 0.001 0.999 0.08 No Distribution coefficient for Ac-227 Unsaturated zone 1 distribution 1 Truncated lognormal-n 5.94 3.22 0.001 0.999 -0.10 No Distribution coefficient for Pa-231 Unsaturated zone 1 distribution 1 Truncated lognormal-n 7.28 3.15 0.001 0.999 0.05 No Distribution coefficient for Am-241 Unsaturated zone 1 distribution 1 Truncated lognormal-n 8.82 1.82 0.001 0.999 0.10 No Distribution coefficient for Cm-244 Unsaturated zone 2 distribution 1 Truncated lognormal-n -2.81 0.5 0.001 0.999 0.07 No Distribution coefficient for H-3 Unsaturated zone 2 distribution 1 Truncated lognormal-n 5.04 3.22 0.001 0.999 0.00 No Distribution coefficient for Na-22 Unsaturated zone 2 distribution 1 Truncated lognormal-n 5.34 2.67 0.001 0.999 -0.06 No Distribution coefficient for Fe-55 Unsaturated zone 2 distribution 1 Truncated lognormal-n 6.05 1.46 0.001 0.999 0.10 No Distribution coefficient for Ni-59 Unsaturated zone 2 distribution 1 Truncated lognormal-n 5.94 3.22 0.001 0.999 -0.04 No Distribution coefficient for Nb-94 Unsaturated zone 2 distribution 1 Truncated lognormal-n -0.67 3.16 0.001 0.999 0.05 No Distribution coefficient for Tc-99 Unsaturated zone 2 distribution 1 Truncated lognormal-n 5.38 2.10 0.001 0.999 -0.09 No Distribution coefficient for Ag-108m Unsaturated zone 2 distribution 1 Truncated lognormal-n 5.94 3.22 0.001 0.999 -0.05 No Distribution coefficient for Sb-125 Unsaturated zone 2 distribution 1 Truncated lognormal-n 6.72 3.22 0.001 0.999 -0.07 No Distribution coefficient for Pm-147 Unsaturated zone 2 distribution 1 Truncated lognormal-n 6.72 3.22 0.001 0.999 0.06 No Distribution coefficient for Sm-147 Unsaturated zone 2 distribution 1 Truncated lognormal-n 6.72 3.22 0.001 0.999 0.12 No Distribution coefficient for Eu-152 Page 6-322
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-Z, Distribution Parameters and Sensitive Parameter Results for Discounted Radionuclides -
Resident Farmer Scenario Distributions Statistical Parameters2 25% or Assigned 1
Parameter Priority Distribution PRCC3 75% Parameter 1 2 3 4 Quartile Value Unsaturated zone 2 distribution 1 Truncated lognormal-n 6.72 3.22 0.001 0.999 0.08 No Distribution coefficient for Eu-154 Unsaturated zone 2 distribution 1 Truncated lognormal-n 6.72 3.22 0.001 0.999 -0.07 No Distribution coefficient for Eu-155 Unsaturated zone 2 distribution 1 Truncated lognormal-n 6.72 3.22 0.001 0.999 -0.02 No Distribution coefficient for Gd-152 Unsaturated zone 2 distribution 1 Truncated lognormal-n 2.84 2.25 0.001 0.999 0.04 No Distribution coefficient for Np-237 Unsaturated zone 2 distribution 1 Truncated lognormal-n 8.68 3.62 0.001 0.999 0.00 No Distribution coefficient for Th-228 Unsaturated zone 2 distribution 1 Truncated lognormal-n 8.68 3.62 0.001 0.999 -0.04 No Distribution coefficient for Th-229 Unsaturated zone 2 distribution 1 Truncated lognormal-n 8.68 3.62 0.001 0.999 -0.06 No Distribution coefficient for Th-230 Unsaturated zone 2 distribution 1 Truncated lognormal-n 8.68 3.62 0.001 0.999 -0.02 No Distribution coefficient for Th-232 Unsaturated zone 2 distribution 1 Truncated lognormal-n 4.84 3.13 0.001 0.999 0.04 No Distribution coefficient for U-233 Unsaturated zone 2 distribution 1 Truncated lognormal-n 4.84 3.13 0.001 0.999 0.02 No Distribution coefficient for U-234 Unsaturated zone 2 distribution 1 Truncated lognormal-n 4.84 3.13 0.001 0.999 0.00 No Distribution coefficient for U-235 Unsaturated zone 2 distribution 1 Truncated lognormal-n 4.84 3.13 0.001 0.999 0.24 No Distribution coefficient for U-236 Unsaturated zone 2 distribution 1 Truncated lognormal-n 4.84 3.13 0.001 0.999 -0.01 No Distribution coefficient for U-238 Unsaturated zone 2 distribution 1 Truncated lognormal-n 6.86 1.89 0.001 0.999 -0.10 No Distribution coefficient for Pu-238 Unsaturated zone 2 distribution 1 Truncated lognormal-n 6.86 1.89 0.001 0.999 -0.24 No Distribution coefficient for Pu-239 Unsaturated zone 2 distribution 1 Truncated lognormal-n 6.86 1.89 0.001 0.999 0.07 No Distribution coefficient for Pu-240 Unsaturated zone 2 distribution 1 Truncated lognormal-n 6.86 1.89 0.001 0.999 -0.07 No Distribution coefficient for Pu-241 Unsaturated zone 2 distribution 1 Truncated lognormal-n 6.86 1.89 0.001 0.999 0.01 No Distribution coefficient for Pu-242 Unsaturated zone 2 distribution 1 Truncated lognormal-n 7.78 2.76 0.001 0.999 0.02 No Distribution coefficient for Pb-210 Unsaturated zone 2 distribution 1 Truncated lognormal-n 8.17 1.70 0.001 0.999 0.03 No Distribution coefficient for Ra-226 Unsaturated zone 2 distribution 1 Truncated lognormal-n 8.17 1.70 0.001 0.999 0.10 No Distribution coefficient for Ra-228 Page 6-323
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-Z, Distribution Parameters and Sensitive Parameter Results for Discounted Radionuclides -
Resident Farmer Scenario Distributions Statistical Parameters2 25% or Assigned 1
Parameter Priority Distribution PRCC3 75% Parameter 1 2 3 4 Quartile Value Unsaturated zone 2 distribution 1 Truncated lognormal-n 6.72 3.22 0.001 0.999 0.10 No Distribution coefficient for Ac-227 Unsaturated zone 2 distribution 1 Truncated lognormal-n 5.94 3.22 0.001 0.999 0.08 No Distribution coefficient for Pa-231 Unsaturated zone 2 distribution 1 Truncated lognormal-n 7.28 3.15 0.001 0.999 0.13 No Distribution coefficient for Am-241 Unsaturated zone 2 distribution 1 Truncated lognormal-n 8.82 1.82 0.001 0.999 -0.15 No Distribution coefficient for Cm-244 Unsaturated zone 3 distribution 1 Truncated lognormal-n -2.81 0.5 0.001 0.999 -0.01 No Distribution coefficient for H-3 Unsaturated zone 3 distribution 1 Truncated lognormal-n 5.04 3.22 0.001 0.999 -0.08 No Distribution coefficient for Na-22 Unsaturated zone 3 distribution 1 Truncated lognormal-n 5.34 2.67 0.001 0.999 0.25 No Distribution coefficient for Fe-55 Unsaturated zone 3 distribution 1 Truncated lognormal-n 6.05 1.46 0.001 0.999 0.01 No Distribution coefficient for Ni-59 Unsaturated zone 3 distribution 1 Truncated lognormal-n 5.94 3.22 0.001 0.999 -0.17 No Distribution coefficient for Nb-94 Unsaturated zone 3 distribution 1 Truncated lognormal-n -0.67 3.16 0.001 0.999 -0.18 No Distribution coefficient for Tc-99 Unsaturated zone 3 distribution 1 Truncated lognormal-n 5.38 2.10 0.001 0.999 0.12 No Distribution coefficient for Ag-108m Unsaturated zone 3 distribution 1 Truncated lognormal-n 5.94 3.22 0.001 0.999 0.11 No Distribution coefficient for Sb-125 Unsaturated zone 3 distribution 1 Truncated lognormal-n 6.72 3.22 0.001 0.999 0.00 No Distribution coefficient for Pm-147 Unsaturated zone 3 distribution 1 Truncated lognormal-n 6.72 3.22 0.001 0.999 -0.10 No Distribution coefficient for Sm-147 Unsaturated zone 3 distribution 1 Truncated lognormal-n 6.72 3.22 0.001 0.999 0.01 No Distribution coefficient for Eu-152 Unsaturated zone 3 distribution 1 Truncated lognormal-n 6.72 3.22 0.001 0.999 0.12 No Distribution coefficient for Eu-154 Unsaturated zone 3 distribution 1 Truncated lognormal-n 6.72 3.22 0.001 0.999 0.14 No Distribution coefficient for Eu-155 Unsaturated zone 3 distribution 1 Truncated lognormal-n 6.72 3.22 0.001 0.999 0.05 No Distribution coefficient for Gd-152 Unsaturated zone 3 distribution 1 Truncated lognormal-n 2.84 2.25 0.001 0.999 -0.14 No Distribution coefficient for Np-237 Unsaturated zone 3 distribution 1 Truncated lognormal-n 8.68 3.62 0.001 0.999 -0.03 No Distribution coefficient for Th-228 Unsaturated zone 3 distribution 1 Truncated lognormal-n 8.68 3.62 0.001 0.999 -0.07 No Distribution coefficient for Th-229 Page 6-324
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-Z, Distribution Parameters and Sensitive Parameter Results for Discounted Radionuclides -
Resident Farmer Scenario Distributions Statistical Parameters2 25% or Assigned 1
Parameter Priority Distribution PRCC3 75% Parameter 1 2 3 4 Quartile Value Unsaturated zone 3 distribution 1 Truncated lognormal-n 8.68 3.62 0.001 0.999 0.01 No Distribution coefficient for Th-230 Unsaturated zone 3 distribution 1 Truncated lognormal-n 8.68 3.62 0.001 0.999 -0.17 No Distribution coefficient for Th-232 Unsaturated zone 3 distribution 1 Truncated lognormal-n 4.84 3.13 0.001 0.999 0.05 No Distribution coefficient for U-233 Unsaturated zone 3 distribution 1 Truncated lognormal-n 4.84 3.13 0.001 0.999 -0.02 No Distribution coefficient for U-234 Unsaturated zone 3 distribution 1 Truncated lognormal-n 4.84 3.13 0.001 0.999 0.06 No Distribution coefficient for U-235 Unsaturated zone 3 distribution 1 Truncated lognormal-n 4.84 3.13 0.001 0.999 0.16 No Distribution coefficient for U-236 Unsaturated zone 3 distribution 1 Truncated lognormal-n 4.84 3.13 0.001 0.999 -0.05 No Distribution coefficient for U-238 Unsaturated zone 3 distribution 1 Truncated lognormal-n 6.86 1.89 0.001 0.999 0.07 No Distribution coefficient for Pu-238 Unsaturated zone 3 distribution 1 Truncated lognormal-n 6.86 1.89 0.001 0.999 0.22 No Distribution coefficient for Pu-239 Unsaturated zone 3 distribution 1 Truncated lognormal-n 6.86 1.89 0.001 0.999 -0.03 No Distribution coefficient for Pu-240 Unsaturated zone 3 distribution 1 Truncated lognormal-n 6.86 1.89 0.001 0.999 -0.12 No Distribution coefficient for Pu-241 Unsaturated zone 3 distribution 1 Truncated lognormal-n 6.86 1.89 0.001 0.999 0.16 No Distribution coefficient for Pu-242 Unsaturated zone 3 distribution 1 Truncated lognormal-n 7.78 2.76 0.001 0.999 0.01 No Distribution coefficient for Pb-210 Unsaturated zone 3 distribution 1 Truncated lognormal-n 8.17 1.70 0.001 0.999 -0.15 No Distribution coefficient for Ra-226 Unsaturated zone 3 distribution 1 Truncated lognormal-n 8.17 1.70 0.001 0.999 -0.06 No Distribution coefficient for Ra-228 Unsaturated zone 3 distribution 1 Truncated lognormal-n 6.72 3.22 0.001 0.999 -0.18 No Distribution coefficient for Ac-227 Unsaturated zone 3 distribution 1 Truncated lognormal-n 5.94 3.22 0.001 0.999 0.31 75% 3300 coefficient for Pa-231 Unsaturated zone 3 distribution 1 Truncated lognormal-n 7.28 3.15 0.001 0.999 -0.08 No Distribution coefficient for Am-241 Unsaturated zone 3 distribution 1 Truncated lognormal-n 8.82 1.82 0.001 0.999 -0.13 No Distribution coefficient for Cm-244 Unsaturated zone 4 distribution 1 Truncated lognormal-n -2.81 0.5 0.001 0.999 -0.06 No Distribution coefficient for H-3 Unsaturated zone 4 distribution 1 Truncated lognormal-n 5.04 3.22 0.001 0.999 0.02 No Distribution coefficient for Na-22 Page 6-325
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-Z, Distribution Parameters and Sensitive Parameter Results for Discounted Radionuclides -
Resident Farmer Scenario Distributions Statistical Parameters2 25% or Assigned 1
Parameter Priority Distribution PRCC3 75% Parameter 1 2 3 4 Quartile Value Unsaturated zone 4 distribution 1 Truncated lognormal-n 5.34 2.67 0.001 0.999 -0.06 No Distribution coefficient for Fe-55 Unsaturated zone 4 distribution 1 Truncated lognormal-n 6.05 1.46 0.001 0.999 -0.04 No Distribution coefficient for Ni-59 Unsaturated zone 4 distribution 1 Truncated lognormal-n 5.94 3.22 0.001 0.999 -0.06 No Distribution coefficient for Nb-94 Unsaturated zone 4 distribution 1 Truncated lognormal-n -0.67 3.16 0.001 0.999 0.06 No Distribution coefficient for Tc-99 Unsaturated zone 4 distribution 1 Truncated lognormal-n 5.38 2.10 0.001 0.999 0.12 No Distribution coefficient for Ag-108m Unsaturated zone 4 distribution 1 Truncated lognormal-n 5.94 3.22 0.001 0.999 -0.01 No Distribution coefficient for Sb-125 Unsaturated zone 4 distribution 1 Truncated lognormal-n 6.72 3.22 0.001 0.999 0.09 No Distribution coefficient for Pm-147 Unsaturated zone 4 distribution 1 Truncated lognormal-n 6.72 3.22 0.001 0.999 0.11 No Distribution coefficient for Sm-147 Unsaturated zone 4 distribution 1 Truncated lognormal-n 6.72 3.22 0.001 0.999 -0.25 No Distribution coefficient for Eu-152 Unsaturated zone 4 distribution 1 Truncated lognormal-n 6.72 3.22 0.001 0.999 -0.01 No Distribution coefficient for Eu-154 Unsaturated zone 4 distribution 1 Truncated lognormal-n 6.72 3.22 0.001 0.999 0.03 No Distribution coefficient for Eu-155 Unsaturated zone 4 distribution 1 Truncated lognormal-n 6.72 3.22 0.001 0.999 0.00 No Distribution coefficient for Gd-152 Unsaturated zone 4 distribution 1 Truncated lognormal-n 2.84 2.25 0.001 0.999 -0.23 No Distribution coefficient for Np-237 Unsaturated zone 4 distribution 1 Truncated lognormal-n 8.68 3.62 0.001 0.999 0.16 No Distribution coefficient for Th-228 Unsaturated zone 4 distribution 1 Truncated lognormal-n 8.68 3.62 0.001 0.999 0.15 No Distribution coefficient for Th-229 Unsaturated zone 4 distribution 1 Truncated lognormal-n 8.68 3.62 0.001 0.999 0.07 No Distribution coefficient for Th-230 Unsaturated zone 4 distribution 1 Truncated lognormal-n 8.68 3.62 0.001 0.999 -0.08 No Distribution coefficient for Th-232 Unsaturated zone 4 distribution 1 Truncated lognormal-n 4.84 3.13 0.001 0.999 -0.02 No Distribution coefficient for U-233 Unsaturated zone 4 distribution 1 Truncated lognormal-n 4.84 3.13 0.001 0.999 0.01 No Distribution coefficient for U-234 Unsaturated zone 4 distribution 1 Truncated lognormal-n 4.84 3.13 0.001 0.999 0.07 No Distribution coefficient for U-235 Unsaturated zone 4 distribution 1 Truncated lognormal-n 4.84 3.13 0.001 0.999 0.02 No Distribution coefficient for U-236 Page 6-326
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-Z, Distribution Parameters and Sensitive Parameter Results for Discounted Radionuclides -
Resident Farmer Scenario Distributions Statistical Parameters2 25% or Assigned 1
Parameter Priority Distribution PRCC3 75% Parameter 1 2 3 4 Quartile Value Unsaturated zone 4 distribution 1 Truncated lognormal-n 4.84 3.13 0.001 0.999 0.01 No Distribution coefficient for U-238 Unsaturated zone 4 distribution 1 Truncated lognormal-n 6.86 1.89 0.001 0.999 0.06 No Distribution coefficient for Pu-238 Unsaturated zone 4 distribution 1 Truncated lognormal-n 6.86 1.89 0.001 0.999 -0.07 No Distribution coefficient for Pu-239 Unsaturated zone 4 distribution 1 Truncated lognormal-n 6.86 1.89 0.001 0.999 -0.06 No Distribution coefficient for Pu-240 Unsaturated zone 4 distribution 1 Truncated lognormal-n 6.86 1.89 0.001 0.999 0.03 No Distribution coefficient for Pu-241 Unsaturated zone 4 distribution 1 Truncated lognormal-n 6.86 1.89 0.001 0.999 -0.12 No Distribution coefficient for Pu-242 Unsaturated zone 4 distribution 1 Truncated lognormal-n 7.78 2.76 0.001 0.999 -0.15 No Distribution coefficient for Pb-210 Unsaturated zone 4 distribution 1 Truncated lognormal-n 8.17 1.70 0.001 0.999 -0.09 No Distribution coefficient for Ra-226 Unsaturated zone 4 distribution 1 Truncated lognormal-n 8.17 1.70 0.001 0.999 -0.03 No Distribution coefficient for Ra-228 Unsaturated zone 4 distribution 1 Truncated lognormal-n 6.72 3.22 0.001 0.999 0.18 No Distribution coefficient for Ac-227 Unsaturated zone 4 distribution 1 Truncated lognormal-n 5.94 3.22 0.001 0.999 -0.18 No Distribution coefficient for Pa-231 Unsaturated zone 4 distribution 1 Truncated lognormal-n 7.28 3.15 0.001 0.999 -0.15 No Distribution coefficient for Am-241 Unsaturated zone 4 distribution 1 Truncated lognormal-n 8.82 1.82 0.001 0.999 -0.05 No Distribution coefficient for Cm-244 Saturated zone distribution 1 Truncated lognormal-n -2.81 0.5 0.001 0.999 -0.02 No Distribution coefficient for H-3 Saturated zone distribution 1 Truncated lognormal-n 5.04 3.22 0.001 0.999 0.01 No Distribution coefficient for Na-22 Saturated zone distribution 1 Truncated lognormal-n 5.34 2.67 0.001 0.999 0.06 No Distribution coefficient for Fe-55 Saturated zone distribution 1 Truncated lognormal-n 6.05 1.46 0.001 0.999 -0.10 No Distribution coefficient for Ni-59 Saturated zone distribution 1 Truncated lognormal-n 5.94 3.22 0.001 0.999 0.02 No Distribution coefficient for Nb-94 Saturated zone distribution 1 Truncated lognormal-n -0.67 3.16 0.001 0.999 -0.12 No Distribution coefficient for Tc-99 Saturated zone distribution 1 Truncated lognormal-n 5.38 2.10 0.001 0.999 0.01 No Distribution coefficient for Ag-108m Saturated zone distribution 1 Truncated lognormal-n 5.94 3.22 0.001 0.999 0.04 No Distribution coefficient for Sb-125 Page 6-327
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-Z, Distribution Parameters and Sensitive Parameter Results for Discounted Radionuclides -
Resident Farmer Scenario Distributions Statistical Parameters2 25% or Assigned 1
Parameter Priority Distribution PRCC3 75% Parameter 1 2 3 4 Quartile Value Saturated zone distribution 1 Truncated lognormal-n 6.72 3.22 0.001 0.999 -0.07 No Distribution coefficient for Pm-147 Saturated zone distribution 1 Truncated lognormal-n 6.72 3.22 0.001 0.999 -0.07 No Distribution coefficient for Sm-147 Saturated zone distribution 1 Truncated lognormal-n 6.72 3.22 0.001 0.999 -0.11 No Distribution coefficient for Eu-152 Saturated zone distribution 1 Truncated lognormal-n 6.72 3.22 0.001 0.999 0.01 No Distribution coefficient for Eu-154 Saturated zone distribution 1 Truncated lognormal-n 6.72 3.22 0.001 0.999 0.04 No Distribution coefficient for Eu-155 Saturated zone distribution 1 Truncated lognormal-n 6.72 3.22 0.001 0.999 -0.13 No Distribution coefficient for Gd-152 Saturated zone distribution 1 Truncated lognormal-n 2.84 2.25 0.001 0.999 0.16 No Distribution coefficient for Np-237 Saturated zone distribution 1 Truncated lognormal-n 8.68 3.62 0.001 0.999 0.06 No Distribution coefficient for Th-228 Saturated zone distribution 1 Truncated lognormal-n 8.68 3.62 0.001 0.999 -0.04 No Distribution coefficient for Th-229 Saturated zone distribution 1 Truncated lognormal-n 8.68 3.62 0.001 0.999 -0.01 No Distribution coefficient for Th-230 Saturated zone distribution 1 Truncated lognormal-n 8.68 3.62 0.001 0.999 0.26 75% 6520 coefficient for Th-232 Saturated zone distribution 1 Truncated lognormal-n 4.84 3.13 0.001 0.999 0.05 No Distribution coefficient for U-233 Saturated zone distribution 1 Truncated lognormal-n 4.84 3.13 0.001 0.999 0.03 No Distribution coefficient for U-234 Saturated zone distribution 1 Truncated lognormal-n 4.84 3.13 0.001 0.999 -0.08 No Distribution coefficient for U-235 Saturated zone distribution 1 Truncated lognormal-n 4.84 3.13 0.001 0.999 0.08 No Distribution coefficient for U-236 Saturated zone distribution 1 Truncated lognormal-n 4.84 3.13 0.001 0.999 0.08 No Distribution coefficient for U-238 Saturated zone distribution 1 Truncated lognormal-n 6.86 1.89 0.001 0.999 -0.05 No Distribution coefficient for Pu-238 Saturated zone distribution 1 Truncated lognormal-n 6.86 1.89 0.001 0.999 -0.01 No Distribution coefficient for Pu-239 Saturated zone distribution 1 Truncated lognormal-n 6.86 1.89 0.001 0.999 -0.10 No Distribution coefficient for Pu-240 Saturated zone distribution 1 Truncated lognormal-n 6.86 1.89 0.001 0.999 0.09 No Distribution coefficient for Pu-241 Saturated zone distribution 1 Truncated lognormal-n 6.86 1.89 0.001 0.999 -0.04 No Distribution coefficient for Pu-242 Page 6-328
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-Z, Distribution Parameters and Sensitive Parameter Results for Discounted Radionuclides -
Resident Farmer Scenario Distributions Statistical Parameters2 25% or Assigned 1
Parameter Priority Distribution PRCC3 75% Parameter 1 2 3 4 Quartile Value Saturated zone distribution 1 Truncated lognormal-n 7.78 2.76 0.001 0.999 0.06 No Distribution coefficient for Pb-210 Saturated zone distribution 1 Truncated lognormal-n 8.17 1.70 0.001 0.999 -0.05 No Distribution coefficient for Ra-226 Saturated zone distribution 1 Truncated lognormal-n 8.17 1.70 0.001 0.999 -0.02 No Distribution coefficient for Ra-228 Saturated zone distribution 1 Truncated lognormal-n 6.72 3.22 0.001 0.999 0.13 No Distribution coefficient for Ac-227 Saturated zone distribution 1 Truncated lognormal-n 5.94 3.22 0.001 0.999 0.16 No Distribution coefficient for Pa-231 Saturated zone distribution 1 Truncated lognormal-n 7.28 3.15 0.001 0.999 0.18 No Distribution coefficient for Am-241 Saturated zone distribution 1 Truncated lognormal-n 8.82 1.82 0.001 0.999 -0.12 No Distribution coefficient for Cm-244 Depth of roots 1 Uniform 0.3 4.0 - - -0.95 25% 1.22 Plant transfer factor for H 1 Truncated lognormal-n 1.57 1.1 0.001 0.999 -0.02 No Distribution Plant transfer factor for Na 1 Truncated lognormal-n -3.00 1.0 0.001 0.999 0.01 No Distribution Plant transfer factor for Fe 1 Truncated lognormal-n -6.91 0.9 0.001 0.999 -0.20 No Distribution Plant transfer factor for Ni 1 Truncated lognormal-n -3.00 0.9 0.001 0.999 0.01 No Distribution Plant transfer factor for Nb 1 Truncated lognormal-n -4.61 1.1 0.001 0.999 -0.01 No Distribution Plant transfer factor for Tc 1 Truncated lognormal-n 1.61 0.9 0.001 0.999 0.93 75% 9.17 Plant transfer factor for Ag 1 Truncated lognormal-n -5.51 0.9 0.001 0.999 -0.10 No Distribution Plant transfer factor for Sb 1 Truncated lognormal-n -4.61 1.0 0.001 0.999 0.06 No Distribution Plant transfer factor for Pm 1 Truncated lognormal-n -6.21 1.1 0.001 0.999 0.02 No Distribution Plant transfer factor for Sm 1 Truncated lognormal-n -6.21 1.1 0.001 0.999 0.03 No Distribution Plant transfer factor for Eu 1 Truncated lognormal-n -6.21 1.1 0.001 0.999 0.00 No Distribution Plant transfer factor for Gd 1 Truncated lognormal-n -6.21 1.1 0.001 0.999 -0.10 No Distribution Plant transfer factor for Np 1 Truncated lognormal-n -3.91 0.9 0.001 0.999 0.94 75% 0.0365 Plant transfer factor for Th 1 Truncated lognormal-n -6.91 0.9 0.001 0.999 -0.03 No Distribution Plant transfer factor for U 1 Truncated lognormal-n -6.21 0.9 0.001 0.999 0.00 No Distribution Plant transfer factor for Pu 1 Truncated lognormal-n -6.91 0.9 0.001 0.999 0.77 75% 0.00183 Plant transfer factor for Pb 1 Truncated lognormal-n -5.52 0.9 0.001 0.999 -0.03 No Distribution Plant transfer factor for Ra 1 Truncated lognormal-n -3.22 0.9 0.001 0.999 -0.10 No Distribution Plant transfer factor for Ac 1 Truncated lognormal-n -6.91 1.1 0.001 0.999 -0.02 No Distribution Plant transfer factor for Pa 1 Truncated lognormal-n -4.61 1.1 0.001 0.999 -0.08 No Distribution Plant transfer factor for Am 1 Truncated lognormal-n -6.91 0.9 0.001 0.999 0.27 75% 0.00182 Plant transfer factor for Cm 1 Truncated lognormal-n -6.91 0.9 0.001 0.999 0.03 No Distribution Contaminated zone b parameter 2 Bounded lognormal-n 1.06 0.66 0.5 30 -0.11 No Distribution 3
Contaminated zone erosion rate 2 Continuous logarithmic Default - - - -0.34 25% 0.000759 Contaminated zone total porosity 2 Truncated normal 0.425 0.0867 0.001 0.999 0.16 No Distribution Page 6-329
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-Z, Distribution Parameters and Sensitive Parameter Results for Discounted Radionuclides -
Resident Farmer Scenario Distributions Statistical Parameters2 25% or Assigned 1
Parameter Priority Distribution PRCC3 75% Parameter 1 2 3 4 Quartile Value Contaminated zone hydraulic 2 Lognormal 3.302 62.0 - - -0.24 No Distribution conductivity Depth of soil mixing layer 2 Triangular 0.0 0.6 0.15 - -0.33 25% 0.149 Drinking water intake 2 Truncated lognormal-n 6.015 0.489 0.001 0.999 0.16 No Distribution Evapotranspiration coefficient 2 Uniform 0.5 0.75 - - 0.25 No Distribution External gamma shielding factor 2 Bounded lognormal-n -1.3 0.59 0.044 1 0.74 75% 0.397 Indoor dust filtration factor 2 Uniform 0.15 0.95 - - -0.12 No Distribution 3
Mass loading for inhalation 2 Continuous linear Default - - - 0.10 No Distribution Runoff coefficient 2 Uniform 0.1 0.8 - - 0.18 No Distribution Fruit, vegetable and grain 2 Triangular 135 318 178 - 0.66 75% 237 consumption rate Milk consumption rate 2 Triangular 60 200 102 - -0.05 No Distribution Aquatic food contaminated fraction 2 Triangular 0 1 0.39 - 0.05 No Distribution Wet weight crop yield for non-leafy 2 Truncated lognormal-n 0.56 0.48 0.001 0.999 -0.04 No Distribution plants Weathering removal constant 2 Triangular 5.1 84 18 - 0.14 No Distribution Wet foliar interception fraction for 2 Triangular 0.06 0.95 0.67 - -0.02 No Distribution leafy vegetables Saturated zone b parameter 2 Bounded lognormal-n 1.06 0.66 0.5 30 -0.13 No Distribution Saturated zone hydraulic gradient 2 Bounded lognormal-n -5.11 1.77 7E-05 0.5 -0.21 No Distribution Soil ingestion rate 2 Triangular 0 36.5 18.3 - 0.09 No Distribution Unsaturated zone 1 density 2 Normal 1.33 0.202 - - -0.32 25% 1.19 Unsaturated zone 1 effective 2 Truncated normal 0.425 0.110 0.0839 0.766 0.03 No Distribution porosity Unsaturated zone 1 hydraulic 2 Bounded lognormal-n 2.66 0.475 3.302 62.2 0.06 No Distribution conductivity Unsaturated zone 1 b parameter 2 Bounded lognormal-n 1.16 0.140 2.06 4.89 -0.07 No Distribution Unsaturated zone 1 total porosity 2 Truncated normal 0.46 0.11 0.1161 0.7959 0.00 No Distribution Unsaturated zone 2 density 2 Normal 1.578 0.158 - - -0.02 No Distribution Unsaturated zone 2 effective 2 Truncated normal 0.383 0.0610 0.195 0.572 -0.15 No Distribution porosity Unsaturated zone 2 hydraulic 2 Bounded lognormal-n 1.398 1.842 110 5870 -0.04 No Distribution conductivity Unsaturated zone 2 b parameter 2 Bounded lognormal-n -0.0253 0.216 0.501 1.90 -0.22 No Distribution Unsaturated zone 2 total porosity 2 Truncated normal 0.43 0.06 0.2446 0.6154 0.09 No Distribution Unsaturated zone 3 density 2 Normal 1.33 0.202 - - 0.13 No Distribution Unsaturated zone 3 hydraulic 2 Bounded lognormal-n 2.66 0.475 3.302 62.2 -0.13 No Distribution conductivity Unsaturated zone 3 b parameter 2 Bounded lognormal-n 1.16 0.140 2.06 4.89 0.16 No Distribution Unsaturated zone 4 density 2 Normal 1.578 0.158 - - 0.15 No Distribution Page 6-330
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-Z, Distribution Parameters and Sensitive Parameter Results for Discounted Radionuclides -
Resident Farmer Scenario Distributions Statistical Parameters2 25% or Assigned 1
Parameter Priority Distribution PRCC3 75% Parameter 1 2 3 4 Quartile Value Unsaturated zone 4 hydraulic 2 Bounded lognormal-n 1.398 1.842 110 5870 0.17 No Distribution conductivity Unsaturated zone 4 b parameter 2 Bounded lognormal-n -0.0253 0.216 0.501 1.90 -0.17 No Distribution Thickness of evasion layer of C-14 in 2 Triangular 0.5 1.0 0.75 - No Distribution soil Meat transfer factor for H 2 Truncated lognormal-n -4.42 1.0 0.001 0.999 -0.1 No Distribution Meat transfer factor for Na 2 Truncated lognormal-n -2.53 0.2 0.001 0.999 0.01 No Distribution Meat transfer factor for Fe 2 Truncated lognormal-n -3.51 0.4 0.001 0.999 0.17 No Distribution Meat transfer factor for Ni 2 Truncated lognormal-n -5.30 0.9 0.001 0.999 0.14 No Distribution Meat transfer factor for Nb 2 Truncated lognormal-n -13.82 0.9 0.001 0.999 0.10 No Distribution Meat transfer factor for Tc 2 Truncated lognormal-n -9.21 0.7 0.001 0.999 -0.05 No Distribution Meat transfer factor for Ag 2 Truncated lognormal-n -6.21 0.7 0.001 0.999 -0.21 No Distribution Meat transfer factor for Sb 2 Truncated lognormal-n -6.91 0.9 0.001 0.999 -0.03 No Distribution Meat transfer factor for Pm 2 Truncated lognormal-n -6.21 1.0 0.001 0.999 -0.07 No Distribution Meat transfer factor for Sm 2 Truncated lognormal-n -6.21 1.0 0.001 0.999 -0.22 No Distribution Meat transfer factor for Eu 2 Truncated lognormal-n -6.21 1.0 0.001 0.999 -0.21 No Distribution Meat transfer factor for Gd 2 Truncated lognormal-n -6.21 1.0 0.001 0.999 0.08 No Distribution Meat transfer factor for Np 2 Truncated lognormal-n -6.91 0.7 0.001 0.999 0.01 No Distribution Meat transfer factor for Th 2 Truncated lognormal-n -9.21 1.0 0.001 0.999 0.06 No Distribution Meat transfer factor for U 2 Truncated lognormal-n -7.13 0.7 0.001 0.999 0.01 No Distribution Meat transfer factor for Pu 2 Truncated lognormal-n -9.21 0.2 0.001 0.999 0.06 No Distribution Meat transfer factor for Pb 2 Truncated lognormal-n -7.13 0.7 0.001 0.999 0.01 No Distribution Meat transfer factor for Ra 2 Truncated lognormal-n -6.91 0.7 0.001 0.999 0.00 No Distribution Meat transfer factor for Ac 2 Truncated lognormal-n -10.82 1.0 0.001 0.999 -0.12 No Distribution Meat transfer factor for Pa 2 Truncated lognormal-n -12.21 1.0 0.001 0.999 -0.10 No Distribution Meat transfer factor for Am 2 Truncated lognormal-n -9.90 0.2 0.001 0.999 -0.06 No Distribution Meat transfer factor for Cm 2 Truncated lognormal-n -10.82 1.0 0.001 0.999 -0.08 No Distribution Milk transfer factor for H 2 Truncated lognormal-n -4.6 0.9 0.001 0.999 -0.04 No Distribution Milk transfer factor for Na 2 Truncated lognormal-n -3.22 0.5 0.001 0.999 -0.07 No Distribution Milk transfer factor for Fe 2 Truncated lognormal-n -8.11 0.7 0.001 0.999 0.07 No Distribution Milk transfer factor for Ni 2 Truncated lognormal-n -3.91 0.7 0.001 0.999 0.04 No Distribution Milk transfer factor for Nb 2 Truncated lognormal-n -13.12 0.7 0.001 0.999 0.01 No Distribution Milk transfer factor for Tc 2 Truncated lognormal-n -6.91 0.7 0.001 0.999 0.03 No Distribution Milk transfer factor for Ag 2 Truncated lognormal-n -5.12 0.7 0.001 0.999 0.15 No Distribution Milk transfer factor for Sb 2 Truncated lognormal-n -9.72 0.9 0.001 0.999 0.12 No Distribution Milk transfer factor for Pm 2 Truncated lognormal-n -9.72 0.9 0.001 0.999 0.18 No Distribution Milk transfer factor for Sm 2 Truncated lognormal-n -9.72 0.9 0.001 0.999 -0.04 No Distribution Milk transfer factor for Eu 2 Truncated lognormal-n -9.72 0.9 0.001 0.999 0.06 No Distribution Milk transfer factor for Gd 2 Truncated lognormal-n -9.72 0.9 0.001 0.999 0.02 No Distribution Milk transfer factor for Np 2 Truncated lognormal-n -11.51 0.7 0.001 0.999 -0.04 No Distribution Milk transfer factor for Th 2 Truncated lognormal-n -12.21 0.9 0.001 0.999 -0.03 No Distribution Page 6-331
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-Z, Distribution Parameters and Sensitive Parameter Results for Discounted Radionuclides -
Resident Farmer Scenario Distributions Statistical Parameters2 25% or Assigned 1
Parameter Priority Distribution PRCC3 75% Parameter 1 2 3 4 Quartile Value Milk transfer factor for U 2 Truncated lognormal-n -7.82 0.6 0.001 0.999 -0.04 No Distribution Milk transfer factor for Pu 2 Truncated lognormal-n -13.82 0.5 0.001 0.999 0.14 No Distribution Milk transfer factor for Pb 2 Truncated lognormal-n -8.11 0.9 0.001 0.999 0.19 No Distribution Milk transfer factor for Ra 2 Truncated lognormal-n -6.91 0.5 0.001 0.999 -0.23 No Distribution Milk transfer factor for Ac 2 Truncated lognormal-n -13.12 0.9 0.001 0.999 0.15 No Distribution Milk transfer factor for Pa 2 Truncated lognormal-n -12.21 0.9 0.001 0.999 -0.02 No Distribution Milk transfer factor for Am 2 Truncated lognormal-n -13.12 0.7 0.001 0.999 0.15 No Distribution Milk transfer factor for Cm 2 Truncated lognormal-n -13.12 0.9 0.001 0.999 -0.16 No Distribution H bioaccumulation factor for fish 2 Lognormal-n 0 0.1 - - -0.01 No Distribution Na bioaccumulation factor for fish 2 Lognormal-n 3 1.1 - - -0.10 No Distribution Fe bioaccumulation factor for fish 2 Lognormal-n 5.3 1.1 - - 0.25 No Distribution Ni bioaccumulation factor for fish 2 Lognormal-n 4.6 1.1 - - -0.21 No Distribution Nb bioaccumulation factor for fish 2 Lognormal-n 5.7 1.1 - - -0.10 No Distribution Tc bioaccumulation factor for fish 2 Lognormal-n 3.0 1.1 - - 0.05 No Distribution Ag bioaccumulation factor for fish 2 Lognormal-n 1.6 1.1 - - 0.01 No Distribution Sb bioaccumulation factor for fish 2 Lognormal-n 4.6 1.1 - - -0.05 No Distribution Pm bioaccumulation factor for fish 2 Lognormal-n 3.4 1.1 - - 0.09 No Distribution Sm bioaccumulation factor for fish 2 Lognormal-n 3.2 1.1 - - 0.22 No Distribution Eu bioaccumulation factor for fish 2 Lognormal-n 3.9 1.1 - - -0.04 No Distribution Gd bioaccumulation factor for fish 2 Lognormal-n 3.2 1.1 - - 0.02 No Distribution Np bioaccumulation factor for fish 2 Lognormal-n 3.4 1.1 - - 0.06 No Distribution Th bioaccumulation factor for fish 2 Lognormal-n 4.6 1.1 - - 0.08 No Distribution U bioaccumulation factor for fish 2 Lognormal-n 2.3 1.1 - - 0.07 No Distribution Pu bioaccumulation factor for fish 2 Lognormal-n 3.4 1.1 - - -0.02 No Distribution Pb bioaccumulation factor for fish 2 Lognormal-n 5.7 1.1 - - 0.11 No Distribution Ra bioaccumulation factor for fish 2 Lognormal-n 3.9 1.1 - - -0.20 No Distribution Ac bioaccumulation factor for fish 2 Lognormal-n 2.7 1.1 - - -0.07 No Distribution Pa bioaccumulation factor for fish 2 Lognormal-n 2.3 1.1 - - 0.04 No Distribution Am bioaccumulation factor for fish 2 Lognormal-n 3.4 1.1 - - -0.16 No Distribution Cm bioaccumulation factor for fish 2 Lognormal-n 3.4 1.1 - - 0.07 No Distribution Unsaturated zone 1 field capacity 3 Truncated normal 0.236 0.0578 0.0575 0.415 -0.07 No Distribution Unsaturated zone 2 field capacity 3 Truncated normal 0.0607 0.0150 0.0280 0.124 0.05 No Distribution Inhalation rate 3 Triangular 4,380 13,100 8,400 - -0.06 No Distribution Notes:
1 1 = high priority parameter, 2 = medium priority parameter 2
Distributions Statistical Parameter Bounded lognormal-n: 1 = underlying mean value, 2 = underlying standard deviation, 3 = lower limit, 4 = upper limit Page 6-332
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-Z, Distribution Parameters and Sensitive Parameter Results for Discounted Radionuclides -
Resident Farmer Scenario Continuous linear: user-defined continuous with linear interpolation Continuous logarithmic: user defined with continuous logarithmic interpolation Lognormal: 1 = mean, 2 = error factor Lognormal-n: 1 = mean, 2 = standard deviation Normal: 1 = mean, 2 = standard deviation Triangular: 1 = minimum, 2 = maximum, 3 = most likely Truncated lognormal-n: 1 = underlying mean value, 2 = underlying standard deviation, 3 = lower quantile, 4 = upper quantile Truncated normal: 1 = mean, 2 = standard deviation, 3 = lower quantile, 4 = upper quantile Uniform: 1 = minimum, 2 = maximum 3
Default RESRAD v6.22 distribution parameters were used Page 6-333
Rancho Seco License Termination Plan Revision 0 Chapter 6, Compliance With the Radiological Criteria for License Termination April 2006 Appendix 6-Z, Distribution Parameters and Sensitive Parameter Results for Discounted Radionuclides -
Resident Farmer Scenario This page intentionally left blank Page 6-334