tsd 14-010 rev 4, resrad dose modeling for basement ...zionsolutions, inc. technical support...

ZionSolutions, Inc. Technical Support Document

TSD 14-010 RESRAD Dose Modeling for Basement Fill Model and Soil DCGL and Calculation of Basement Fill

Model Dose Factors and DCGLs

Revision 4

Originator: ___________________ Date: 2/23/17

David Fauver

Reviewer: _____ Date: 2/23/17 Terry Sullivan

Approval: ______________________________Date: 2/24/17 Robert Yetter

TSD 14-010 Revision 4

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Summary of Changes in Revision 4:

Revised sections throughout document to provide calculations made in response to NRC requests for additional information.


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TABLE OF CONTENTS

1. Purpose ................................................................................................................................... 6 2. Basement Fill Model RESRAD Modeling and Spreadsheet Calculations ............................. 7 2.1. RESRAD Modeling to Determine BFM Groundwater Exposure Factors .............................. 7

2.1.1. BFM RESRAD Uncertainty Analysis ............................................................................. 8 2.1.2. BFM RESRAD Input Parameters, Output Reports, and BFM Groundwater

Exposure Factor Calculation ........................................................................................... 8 2.2. Calculation of Groundwater and Fill Concentration Factors from DUST-MS .................... 11 2.3. BFM Groundwater Dose Factors .......................................................................................... 12 2.4. BFM Drilling Spoils Dose Factors ....................................................................................... 14 2.5. Basement Surface DCGLs .................................................................................................... 15

2.5.1. Basement Surface Area Adjustments ............................................................................ 16 2.5.2. Basement Surface DCGL Calculation .......................................................................... 18

2.6. BFM Drilling Spoils Scenario Area Factor .......................................................................... 21 3. RESRAD Modeling for Soil DCGL Determination ............................................................. 23 3.1. Soil Uncertainty Analysis ..................................................................................................... 23 3.2. RESRAD Results and Soil DCGLs ...................................................................................... 25 4. RESRAD Modeling for Concrete Radionuclide of Concern Selection ................................ 26 4.1. BFM GW Dose Factors and DCGLs for the Initial Suite of Potential Radionuclides ......... 26 4.2. Soil Area Factors for Determining BFM Drilling Spoils Dose Factors for the

Initial Suite of Potential Radionuclides ................................................................................ 28 5. RESRAD Modeling for Soil Radionuclide of Concern Selection ........................................ 28 6. RESRAD Soil Dose Modeling for Industrial Use Alternate Scenario ................................. 28 7. Soil Kd Uncertainty and Sensitivity Assessment ................................................................. 30 8. Clean Concrete Fill ............................................................................................................... 32 9. DCGLs for Embedded Pipe .................................................................................................. 34 10. Penetration DCGLs ............................................................................................................... 36 11. Action Levels for Remediation and Grouting of Penetrations ............................................. 38 12. Conclusion ............................................................................................................................ 39 13. References ............................................................................................................................. 41 14. Attachments .......................................................................................................................... 42 14.1. Attachment 1: RESRAD Input Parameters for BFM Uncertainty Analysis ......................... 44 14.2. Attachment 2: RESRAD BFM Uncertainty Reports ............................................................ 58 14.3. Attachment 3: RESRAD Input Parameters for BFM Groundwater Exposure Factors ........ 59 14.4. Attachment 4: RESRAD Summary Report and Concentration Report for BFM

Groundwater Exposure Factors ............................................................................................ 73 14.5. Attachment 5: Calculation of Groundwater Concentration Factors and Fill

Concentration Factors from DUST-MS Modeling Results .................................................. 74 14.6. Attachment 6: Calculation of BFM Basement Dose Factors ................................................ 78 14.7. Attachment 7: RESRAD Input Parameters for Soil DCGL Uncertainty Analysis ............... 80 14.8. Attachment 8: RESRAD Uncertainty Reports for Soil DCGLs ........................................... 91 14.9. Attachment 9: RESRAD Input Parameters for ZSRP Surface Soil and Subsurface

Soil DCGL ............................................................................................................................ 92 14.10. Attachment 10: RESRAD Summary Reports for Soil DCGLs .......................................... 103 14.11. Attachment 11: RESRAD Input Parameters for BFM Analysis of Initial Suite of

Radionuclides ..................................................................................................................... 104


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14.12. Attachment 12: RESRAD Summary Report and Concentration Report for BFM Analysis of Initial Suite of Radionuclides .......................................................................... 128

14.13. Attachment 13: RESRAD Summary Reports for Soil Area Factors to Support Calculation of BFM Drilling Spoils Dose Factors for Initial Suite of Radionuclides ........ 129

14.14. Attachment 14: RESRAD Summary Report for Soil Analysis of Initial Suite of Radionuclides ..................................................................................................................... 130

14.15. Attachment 15: Clean Concrete Fill Dose Assessment at Detection Limit ........................ 131 14.16. Attachment 16: Basement Surface DCGL Calculation ...................................................... 138 14.17. Attachment 17: BFM Drilling Spoils Scenario Area Factor .............................................. 147 14.18. Attachment 18: Initial Suite Radionuclides DCGL Calculation ......................................... 150 14.19. Attachment 19: Embedded Pipe DCGL Calculation .......................................................... 156 14.20. Attachment 20: Penetration DCGL Calculation ................................................................. 160

LIST OF TABLES

Table 1 BFM Uncertainty Analysis Results for Parameters with |PRCC| > 0.25 ............................ 9 Table 2 BFM Deterministic Values for Sensitive Parameters from Table 6-12 that are

Radionuclide Independent ................................................................................................. 10 Table 3 BFM Deterministic Values for Sensitive Parameters from Table 6-14 that are

Radionuclide Dependent .................................................................................................... 10 Table 4 RESRAD Results and Groundwater Exposure Factors for BFM model ........................... 11 Table 5 Peak Groundwater Concentration Factors (pCi/L per mCi Total Inventory) .................... 12 Table 6 Peak Fill Material Concentration Factors (pCi/g per mCi Total Inventory) ..................... 12 Table 7 BFM GW Dose Factors (mrem/yr per mCi Total Inventory) ............................................ 13 Table 8 BFM Drilling Spoils Dose Factors (mrem/yr per mCi) ..................................................... 14 Table 9 Basement Surface Areas (Walls and Floors) ..................................................................... 17 Table 10 Surface Areas for Circulating Water Intake Pipe, Circulating Water Discharge

Tunnel and Circulating Water Discharge Pipe .................................................................. 17 Table 11 Adjusted Basement Surface Areas for DCGL Calculation ............................................... 17 Table 12 BFM Groundwater Scenario DCGLBS (not adjusted for insignificant

contributor dose) ................................................................................................................ 18 Table 13 BFM Drilling Spoils Scenario DCGLBS (not adjusted for insignificant

contributor dose) ................................................................................................................ 18

Table 14 Basement Surface DCGLB (not adjusted for insignificant contributor dose) .................... 19 Table 15 Adjusted BFM Groundwater Scenario DCGLBS (Adjusted for insignificant

contributor dose) ................................................................................................................ 20 Table 16 Adjusted BFM Drilling Spoils Scenario DCGLBS (Adjusted for insignificant

contributor dose) ................................................................................................................ 20 Table 17 Adjusted Basement Surface DCGLB (Adjusted for insignificant contributor dose) ......... 21 Table 18 Floor Surface Areas for Class 1 Basements ...................................................................... 22

Table 19 Drilling Spoils Scenario Area Factors ............................................................................... 22 Table 20 Surface Soil DCGL Uncertainty Analysis Results for Parameters with |PRCC| >0.25 ... 24 Table 21 Selected Deterministic Values for Surface Soil DCGL Sensitive Parameters

from Table 9 That Are Radionuclide Independent ............................................................ 24

Table 22 Deterministic Values for Surface Soil DCGL Sensitive Parameters from Table 9 that are Radionuclide Dependent ....................................................................................... 24

Table 23 Subsurface Soil DCGL Uncertainty Analysis Results for Parameters with |PRCC| > 0.25 .................................................................................................................... 25


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Table 24 Selected Deterministic Values for Subsurface Soil DCGL Sensitive Parameters from Table 12 that are Radionuclide Independent ............................................................ 25

Table 25 Deterministic Values for Subsurface Soil DCGL Sensitive Parameters from Table 12 that are Radionuclide Dependent ........................................................................ 25

Table 26 RESRAD Surface and Subsurface Soil DCGLs ................................................................ 26 Table 27 RESRAD Surface and Subsurface Soil DCGLs Adjusted to account for

Insignificant Contributor Dose .......................................................................................... 26 Table 28 List of 26 potentially significant radionuclides (from TSD 14-019) ................................. 26 Table 29 Industrial Use Concentrations “DCGLs”and Adjusted DCGLs ........................................ 30 Table 30 Surface and Subsurface Soil DCGL with Minimum Site-Specific Sand Kds ................... 31 Table 31 Surface and Subsurface Soil DCGL with Maximum Site-Specific Sand Kds .................. 32 Table 32 Ratio of Maximum Kd DCGL/Minimum Kd DCGL for Surface and Subsurface Soil ... 32 Table 33 Clean Concrete Fill Hypothetical Dose using Containment ROC Mixture ....................... 33

Table 34 Embedded Pipe Survey Unit Surface Areas ...................................................................... 34 Table 35 Embedded Pipe DCGLEP (Adjusted for Insignificant Contributor Dose) ......................... 35 Table 36 Penetration Survey Unit Surface Areas ............................................................................. 36 Table 37 Ratio of Instant Release Maximum to Diffusion Release Maximum for Auxiliary

Basement ............................................................................................................................ 37 Table 38 Adjusted Penetration DCGLPN (Adjusted for insignificant contributor dose) .................. 38 Table 39 Lower Action Levels for Auxiliary Basement Penetration Survey Unit ........................... 39 Table 40 Penetration Remediation and Grouting Lower Action Levels .......................................... 39

LIST OF FIGURES Figure 1 – RESRAD Parameter Selection Process ................................................................................. 43


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1. Purpose This Technical Support Document (TSD) provides the input parameters and results of all RESRAD dose assessment modeling required to support the development of the License Termination Plan (LTP) for the Zion Station Restoration Project (ZSRP). RESRAD modeling is required to determine the dose to the average member of the critical group for compliance with 10 CFR 20.1402. This TSD also documents spreadsheet calculations required to convert RESRAD results to Dose Factors and Derived Concentration Guideline Levels (DCGLs) for the Basement Fill Model (BFM).

The Resident Farmer Scenario includes the following exposure pathways (see LTP Chapter 6, section 6.5.4):

Direct exposure to external radiation

Inhalation dose from airborne radioactivity

Ingestion dose from the following pathways; - Plants grown with irrigation water from onsite well,

- Meat and Milk from livestock consuming fodder from fields irrigated with onsite well water and consuming water from onsite well,

- Drinking water from onsite well,

- Soil ingestion.

Direct exposure, inhalation dose and ingestion dose from contaminated drilling spoils brought to the surface during installation of the onsite well into the fill material.

The calculation of the dose factors from the drilling spoils pathway, referred to as “BFM Drilling Spoils Dose Factors”, is provided in ZionSolutions Technical Support Document (TSD) 14-021 “Basement Fill Model Drilling Spoils and Alternate Exposure Scenarios” (1).

The RESRAD parameters and modeling results used to support the calculation of BFM Dose Factors, Basement DCGLs and Soil DCGLs are provided with minimal supporting discussion in this TSD. Full explanation and justification for the BFM and Soil Site Conceptual Models, critical group, exposure scenarios, etc. are provided in LTP Chapter 6. The applicable LTP Chapter 6 sections are referenced in this TSD as necessary.

The detailed RESRAD output reports are provided in this TSD and are used by reference in LTP Chapter 6 summary tables. Separate documentation of the RESRAD output reports in this TSD facilitates independent review and verification of the RESRAD runs. Providing the RESRAD output reports in this TSD, as opposed to the LTP, also allows revision of the RESRAD runs and output reports, if necessary, without full revision, replacement and resubmittal of a large number of LTP attachments. The corresponding summary reports in the LTP would then be revised as necessary.

There are two RESRAD analyses required to support the selection of the Radionuclides of Concern (ROC) for basements and soil in Zion Solutions TSD 14-019, Radionuclides of Concern for Basement Fill Model Source Term and Surrogate Ratios (2). RESRAD ‘dose to source ratios’ (DSRs) for BFM and soil were required for each of the 26 potential radionuclides in the initial suite to determine which radionuclides were insignificant dose contributors as defined in NUREG-1757, Volume 2, Revision 1, "Consolidated Decommissioning Guidance: Characterization, Survey and Determination of


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Radiological Criteria" (3). The discussion of methods, input parameters an output reports for the BFM and soil RESRAD runs are provided in this TSD. The results of the RESRAD runs were used by reference in TSD 14-019 to determine the relative dose contribution from all radionuclides, identify the ROC for concrete and soil, and calculated the dose fraction attributable to the insignificant contributor radionuclides that were removed from further detailed calculations.

RESRAD runs were also required to calculate Area Factors (AF) for the initial suite of potential radionuclides for use in the calculation of Drilling Spoils Dose Factors in TSD 14-021 which were required to develop the total BFM Dose Factors.

In summary, the following RESRAD runs are required to support the LTP:

1. Basement Fill Model (BFM) sensitivity analysis for ROC, 2. BFM Groundwater Exposure Factors for ROC, 3. Soil Derived Concentration Guideline Level (DCGL) sensitivity analysis for ROC, 4. Soil DCGLs for ROC, 5. BFM modeling to determine Groundwater Exposure Factors for the initial suite of

radionuclides in concrete, 6. Soil modeling to determine AFs for the initial suite of radionuclides in concrete to determine

BFM Drilling Spoils Dose Factors, 7. Soil modeling for the initial suite of radionuclides in soil, 8. Soil RESRAD modeling for industrial use scenario, and 9. Soil RESRAD Modeling for Kd uncertainty analysis

Seven spreadsheet calculations were required to determine the BFM Groundwater and Drilling Spoils Dose Factors, and the final Basement Dose Factors reported in LTP Chapter 6. The methods for calculating the Dose Factors, the documentation of the supporting spreadsheet calculations, and the development of corresponding summary tables reported in LTP Chapter 6 are provided in this TSD. The required spreadsheet calculations are listed below:

1. Calculation of DUST-MS Groundwater Concentration Factors 2. Calculation of BFM GW Exposure Factors 3. Calculation of BFM GW Dose Factors 4. Calculation of BFM DCGLs 5. Calculation of Basement Surface Drilling Spoils Area Factors 6. Calculation of “Clean Concrete” Dose 7. Calculation of DCGLs for the Initial Suite Radionuclides

2. Basement Fill Model RESRAD Modeling and Spreadsheet Calculations RESRAD Modeling to Determine BFM Groundwater Exposure Factors 2.1.

The RESRADv7.0 computer code was used to calculate the Resident Farmer dose from a unit radionuclide concentration in the well water.

A Groundwater Exposure Factor, in units of mrem/y per pCi/L was generated for each Radionuclide of Concern (ROC). Detailed explanations of the process for determining ROC for the Basements to remain at ZNPS are provided in TSD 14-019 and LTP Chapter 6, section 6.5.2.

The ROC for Zion Nuclear Power Station (ZNPS) Basements are Co-60, Ni-63, Sr-90, Cs-134, Cs-137, H-3, Eu-152 and Eu-154. Note that H-3, Eu-152 and Eu-154 are concrete activation products and apply to the Containment Basements only.


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The process and justification for the selection of RESRAD parameters to determine BFM Groundwater Exposure Factors are provided in LTP Chapter 6, section 6.6.3. There are two RESRAD analyses required; an uncertainty analysis and a dose analysis that incorporates the parameters deemed sensitive.

2.1.1. BFM RESRAD Uncertainty Analysis The process for determining the input parameters for the BFM RESRAD uncertainty analysis is described in LTP Chapter 6, section 6.6.3.1. The parameter selection process is shown in the flowchart in Figure 1. A number of site-specific parameters were used from two sources; ZionSolutions TSD 14-006, “Conestoga Rovers & Associates (CRA) Report, Evaluation of Hydrological Parameters in Support of Dose Modeling for the Zion Restoration Project” (4) and ZionSolutions TSD 14-004 “Brookhaven National Laboratory (BNL) Report, Recommended Values for the Distribution Coefficient (KD) to be used in Dose Assessments for Decommissioning the Zion Nuclear Station” (5). The RESRAD parameter set used for the uncertainty analysis is provided in Attachment 1.

The uncertainty analysis was conservatively run for all ROC individually to maximize the parameter sensitivity. A more realistic approach would be to use the radionuclide mixture fractions which may reduce the sensitivity of some parameters for the low abundance radionuclides.

The RESRAD Uncertainty Reports and Summary Reports are provided in Attachment 2. Table 1 provides the parameters with |PRCC| values greater than 0.25 and the reported PRCC values. The reported PRCC values are the maximum from the three “RESRAD Regression and Correlation outputs” provided in the Uncertainty Reports.

Table 2 and Table 3 list the selected 75th or 25th percentile deterministic values from the NUREG/CR-6697 "Development of Probabilistic RESRAD 6.0 and RESRAD-BUILD 3.0 Computer Codes" (6) distributions for the sensitive parameters (i.e., those listed in Table 1).

2.1.2. BFM RESRAD Input Parameters, Output Reports, and BFM Groundwater Exposure Factor Calculation

The final RESRAD parameter set used to calculate the BFM Groundwater Exposure Factors is provided in Attachment 3. The parameters in Attachment 3 were developed using the process in Figure 1 and the results of the uncertainty analysis reported in Tables 2 and 3. The RESRAD BFM Summary Report and Concentration Report required for the calculation Groundwater Exposure Factors are provided in Attachment 4.

The Groundwater Exposure Factors are calculated by dividing the maximum dose by the well water concentration at t=0.

Equation 1

𝑩𝑭𝑴 𝑮𝑾 𝑬𝒙𝒑𝒐𝒔𝒖𝒓𝒆 𝑭𝒂𝒄𝒕𝒐𝒓 (𝒊) =𝑴𝒂𝒙 𝑫𝒐𝒔𝒆 (𝒊)

𝑮𝑾 𝑪𝒐𝒏𝒄𝒆𝒏𝒕𝒓𝒂𝒕𝒊𝒐𝒏 (𝒊)

Where:

BFM GW Exposure Factor (i) = Total Resident Farmer dose for radionuclide (i) from unit concentration of groundwater (mrem/yr per pCi/L) Max Dose (i) = Maximum Resident Farmer Dose for radionuclide (i) from RESRAD Summary Report (mrem/yr) GW Concentration (i) = Well water concentration for radionuclide (i) from RESRAD Concentration Report (pCi/L)


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The RESRAD dose and concentration results from Attachment 3 and the results of the Groundwater Exposure Factor calculations are provided in Table 4.

Table 1 BFM Uncertainty Analysis Results for Parameters with |PRCC| > 0.25

Note 1: NS indicates that the parameter is not sensitive

Parameter PRCC Value

Co-60 Cs-134 Cs-137 Eu-152 Eu-154 Ni-63 Sr-90 H-3

Depth of Roots 0.33 NS1 NS NS NS NS NS NS

Weathering Removal Constant of All Vegetation

-0.61 -0.88 -0.87 -0.87 -0.89 -0.78 -0.80 NS

Wet Weight Crop Yield of Fruit Grain and Non-Leafy Vegetables

NS NS NS -0.51 -0.54 NS NS NS

Wet Foliar Interception Fraction of Leafy Vegetables

NS NS NS 0.56 0.59 NS NS NS

Plant Transfer Factor NS NS NS NS NS NS 0.31 NS

Meat Transfer Factor 0.90 0.86 0.85 0.75 0.77 0.32 0.59 NA

Milk Transfer Factor 0.56 0.91 0.90 NS NS 0.97 0.68 NA

Saturated Zone Hydraulic Conductivity NS NS NS NS NS NS -0.36 -0.54

Saturated Zone Hydraulic Gradient NS NS NS NS NS NS -0.59 -0.77

Contaminated Zone Total Porosity NS NS NS NS NS NS -0.41 -0.77

Density of Contaminated Zone NS NS NS NS NS NS 0.41 0.73


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Table 2 BFM Deterministic Values for Sensitive Parameters from Table 6-12 that are Radionuclide Independent

Parameter Percentile Parameter Value

Depth of Roots 75th 3.1m

Weathering Removal Constant of All Vegetation 25th 21.5

Wet Weight Crop Yield of Fruit Grain and Non-Leafy Vegetables 25th 1.26 kg/m2

Wet Foliar Interception Fraction of Leafy Vegetables 75th 0.70

Saturated Zone Hydraulic Conductivity 25th 1695

Saturated Zone Hydraulic Gradient 25th 0.0018

Contaminated Zone Total Porosity 25th 0.37

Density of Contaminated Zone 75th 1.681 g/cm3 Note 1: Site specific density value of 1.8 used in the RESRAD run.

Table 3 BFM Deterministic Values for Sensitive Parameters from Table 6-14 that

are Radionuclide Dependent

Radionuclide Plant Transfer Factor 75th Percentile

Meat Transfer Factor 75th Percentile

Milk Transfer Factor 75th Percentile

Co-60 NS 0.058 0.0032

Cs-134 NS 0.065 0.014

Cs-137 NS 0.065 0.014

Eu-152 NS 0.004 NS

Eu-154 NS 0.004 NS

Ni-63 NS 0.0092 0.032

Sr-90 0.59 0.013 0.0028

H-3 NS NS NS


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Table 4 RESRAD Results and Groundwater Exposure Factors for BFM model

Radionuclide Dose (mrem/y) Groundwater

Concentration (pCi/L)

GW Exposure Factor (mrem/y per pCi/L)

Drinking Water

Plant/Meat/Milk Total

Co-60 5.40E-02 5.82E-02 1.12E-01 4.48E+00 2.50E-02

Cs-134 6.58E-01 1.28E+00 1.94E+00 2.21E+01 8.75E-02

Cs-137 5.23E-01 1.01E+00 1.54E+00 2.21E+01 6.94E-02

Eu-152 3.17E-02 6.30E-03 3.80E-02 1.05E+01 3.62E-03

Eu-154 4.61E-02 9.14E-03 5.52E-02 1.05E+01 5.26E-03

H-3 1.38E-01 7.88E-02 2.17E-01 4.89E+03 4.43E-05

Ni-63 4.42E-03 1.13E-02 1.57E-02 1.61E+01 9.78E-04

Sr-90 2.87E+01 1.49E+01 4.36E+01 3.99E+02 1.09E-01

Calculation of Groundwater and Fill Concentration Factors from DUST-MS 2.2.The initial environmental transport pathway for the BFM Resident Farmer scenario is the release of radioactivity from Basement concrete (or steel liner surfaces for Containment Basements) to water in the interstitial space of the fill material. The water concentrations in the Basements are calculated using the DUST-MS computer code. The methods and results are provided in ZionSolutions TSD 14-009, “Brookhaven National Laboratory Report (BNL), “Evaluation of Maximum Radionuclide Groundwater Concentrations for Basement Fill Model, Zion Station Restoration Project” (7). See LTP Chapter 6, section 6.6.1 for detailed discussion of DUST-MS application in BFM.

The water concentrations and fill concentrations calculated by DUST-MS were used to in conjunction with the assumed radionuclide inventory in each Basement to calculate water and fill concentration factors for each Basement and ROC using Equation 2. The GW Concentration Factors are used in conjunction with RESRAD Groundwater Exposure Factors to calculate BFM Groundwater Dose Factors (see section 2.3). The Fill Concentration Factors are used in the BFM Drilling Spoils Scenario to calculate BFM Drilling Spoils Dose Factors (see section 2.4).

Equation 2

𝑮𝑾 𝒐𝒓 𝑭𝒊𝒍𝒍 𝑪𝒐𝒏𝒄𝒆𝒏𝒕𝒓𝒂𝒕𝒊𝒐𝒏 𝑭𝒂𝒄𝒕𝒐𝒓(𝒊, 𝒃)= 𝑮𝑾 𝒐𝒓 𝑭𝒊𝒍𝒍 𝑪𝒐𝒏𝒄𝒆𝒏𝒕𝒓𝒂𝒕𝒊𝒐𝒏 (𝒊, 𝒃)/𝑰𝒏𝒗𝒆𝒏𝒕𝒐𝒓𝒚 (𝒊, 𝒃)

where:

GW or Fill Concentration Factor (i,b) = GW or Fill concentration factor for radionuclide (i) and Basement (b) (pCi/L or pCi/g per mCi)

GW or Fill Concentration (i,b) = GW or Fill concentration for radionuclide (i) and Basement (b) (pCi/L or pCi/g)

Inventory (i,b) = assumed inventory for Radionuclide (i) and Basement (b) (mCi)

The GW Concentration Factors and Fill Concentration Factors are calculated in ZionSolutions Excel Spreadsheet “Calculations in Support of TSD 14-010 Revision 4.xls”. The Excel Worksheet results are provided in Attachment 5. The results are summarized in Tables 5 and 6.


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Table 5 Peak Groundwater Concentration Factors (pCi/L per mCi Total Inventory)

Nuclide Auxiliary

(pCi/L/mCi)

Containment

(pCi/L/mCi)

Turbine

(pCi/L/mCi)

Fuel

(pCi/L/mCi)

Crib House /Forebay

(pCi/L/mCi)

WWTF

(pCi/L/mCi)

Co-60 4.00E-03 4.57E-01 1.14E-01 5.45E-01 9.77E-02 2.08E+01

Cs-134 1.06E-01 2.26E+00 5.65E-01 1.45E+01 4.83E-01 1.03E+02

Cs-137 3.80E-01 2.26E+00 5.65E-01 5.22E+01 4.83E-01 1.03E+02

Eu-152 1.65E-02 1.07E+00 2.68E-01 2.24E+00 2.29E-01 4.83E+01

Eu-154 1.29E-02 1.07E+00 2.68E-01 1.76E+00 2.29E-01 4.88E+01

H-3 1.40E+02 6.13E+02 1.53E+02 1.91E+04 1.31E+02 2.78E+04

Ni-63 2.92E-01 1.64E+00 4.10E-01 4.23E+01 3.52E-01 7.47E+01

Sr-90 3.01E+00 4.13E+01 1.04E+01 4.12E+02 8.85E+00 1.89E+03

Table 6 Peak Fill Material Concentration Factors (pCi/g per mCi Total Inventory)

Nuclide

Auxiliary

(pCi/g/mCi)

Containment

(pCi/g/mCi)

Turbine

(pCi/g/mCi)

Fuel

(pCi/g/mCi)

Crib House /Forebay

(pCi/g/mCi)

WWTF

(pCi/g/mCi)

Co-60 8.92E-04 1.02E-01 2.55E-02 1.22E-01 2.18E-02 4.64E+00

Cs-134 4.77E-03 1.01E-01 2.54E-02 6.53E-01 2.18E-02 4.63E+00

Cs-137 1.71E-02 1.01E-01 2.54E-02 2.35E+00 2.18E-02 4.63E+00

Eu-152 1.58E-03 1.02E-01 2.55E-02 2.15E-01 2.18E-02 4.64E+00

Eu-154 1.22E-03 1.02E-01 2.55E-02 1.67E-01 2.18E-02 4.64E+00

H-3 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.00E+00

Ni-63 1.81E-02 1.02E-01 2.54E-02 2.49E+00 2.18E-02 4.64E+00

Sr-90 6.94E-03 9.50E-02 2.38E-02 9.46E-01 2.03E-02 4.33E+00

BFM Groundwater Dose Factors 2.3.BFM Groundwater Dose Factors are dose conversion factors in units of mrem/yr per mCi total inventory. The Resident Farmer dose includes the exposure pathways listed in section 1. The BFM Groundwater Dose Factor accounts for all of the exposure pathways except the drilling spoils pathway which is discussed in section 2.4.

As discussed in detail in LTP Chapter 6, section 6.5.4, operation of a residential well in the Spent Fuel Basement is implausible due to the floor of the Spent Fuel Pool being only three feet below the water table. Therefore, the BFM GW Dose Factors for the Spent Fuel Pool are set to zero. Note that the BFM Drilling Spoils pathway remains active for the Spent Fuel Pool.

The BFM Groundwater Dose Factors are calculated using Equation 3. The spreadsheet calculation inputs and results are provided in ZionSolutions Excel Spreadsheet “Calculations in Support of LTP


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Chapter 6, Rev 2.xls”. The Excel Worksheet results are provided in Attachment 6. The results are summarized in Table 7.

Equation 3

𝑩𝑭𝑴 𝑮𝑾 𝑫𝒐𝒔𝒆 𝑭𝒂𝒄𝒕𝒐𝒓(𝒊, 𝒃) = 𝑮𝑾 𝑪𝒐𝒏𝒄𝒆𝒏𝒕𝒓𝒂𝒕𝒊𝒐𝒏 𝑭𝒂𝒄𝒕𝒐𝒓(𝒊, 𝒃) × 𝑮𝑾 𝑬𝒙𝒑𝒐𝒔𝒖𝒓𝒆 𝑭𝒂𝒄𝒕𝒐𝒓(𝒊)

where:

BFM GW Dose Factor (i,b) = BFM Groundwater Dose Factor for radionuclide (i) and Basement (b) (mrem/y per mCi)

GW Concentration Factor (i,b) = Groundwater Concentration Factor for Radionuclide (i) and Basement (b) (pCi/L per mCi)

GW Exposure Factor (i) = Groundwater Exposure Factor for radionuclide (i) (mrem/y per pCi/L.

Table 7 BFM GW Dose Factors (mrem/yr per mCi Total Inventory)

Nuclide

Auxiliary (mrem/yr per mCi)

Containment (mrem/yr per mCi)

Fuel (mrem/yr per mCi)

Turbine (mrem/yr per

mCi)

Crib House /Forebay (mrem/yr per mCi)

WWTF (mrem/yr per

mCi) Co-60 1.00E-04 1.14E-02 NA 2.87E-03 2.85E-03 5.21E-01 Cs-134 9.27E-03 1.98E-01 NA 4.94E-02 4.91E-02 9.03E+00 Cs-137 2.64E-02 1.57E-01 NA 3.92E-02 3.90E-02 7.17E+00 Eu-152 5.96E-05 3.87E-03 NA 9.69E-04 9.64E-04 1.75E-01 Eu-154 6.77E-05 5.62E-03 NA 1.41E-03 1.40E-03 2.56E-01

H-3 6.21E-03 2.72E-02 NA 6.80E-03 6.75E-03 1.23E+00 Ni-63 2.86E-04 1.61E-03 NA 4.01E-04 4.00E-04 7.31E-02 Sr-90 3.29E-01 4.51E+00 NA 1.13E+00 1.12E+00 2.06E+02

Table 7 includes an adjustment to the Table 5 peak groundwater concentration factors for the Crib House/Forebay. A revision to the demolition plan for the Crib House/Forebay was made that entailed leaving interior walls as opposed to removing them. This resulted in a decrease in the basement mixing volume as compared to that assumed in the DUST-MS modeling provided in TSD-14-009, Revision 0 and a corresponding increase in the fill and groundwater concentrations calculated in TSD 14-009, Revision 0. The BFM GW DFs are directly proportional to the groundwater concentrations which are inversely proportional to the ratio of revised/original mixing volumes. The ratio of the revised/original mixing volumes for the Crib House /Forebay was calculated in TSD 14-014, Revision 1 and determined to be 0.86. The Crib House/Forebay BFM GW Dose Factors were therefore adjusted higher by the inverse of 0.86 or a factor of 1.16. Note that the Crib House/Forebay surface area was also adjusted to account for the additional remaining walls but the change in surface area does not affect the calculation of the BFM Dose Factors because the unit inventory approach used was independent of surface area. The Excel Worksheet results for the correction of the Crib House/Forebay Drilling Spoils Dose Factors is provided in Attachment 6.


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BFM Drilling Spoils Dose Factors 2.4.The BFM Drilling Spoils scenario addresses one of the BFM exposure pathways listed in section 6.5.4 by calculating the dose from residual radioactivity in fill material (resulting from release from surfaces to clean fill after backfill) which is brought to the surface during the installation of a well in the basement. The activity remaining in the concrete surfaces, if any, is also included in the drilling spoils source term. The drilling spoils exposure pathway was included after initial screening in ZionSolutions TSD 14-021 “Basement Fill Model (BFM) Drilling Spoils and Alternate Exposure Scenarios” (Reference 1) indicated that the pathway could potentially contribute greater than 10% of the total BFM dose. TSD 14-021 also provides the BFM Drilling Spoils Dose Factor calculations. BFM Drilling Spoils Dose Factors are calculated in units of mrem/yr per mCi total inventory. Table 5 from TSD 14-021 is reproduced in Table 8.

Table 8 BFM Drilling Spoils Dose Factors (mrem/yr per mCi)

Nuclide Auxiliary (mrem/yr per mCi)

Containment (mrem/yr per mCi)

Fuel (mrem/yr per mCi)

Turbine (mrem/yr per mCi)

Crib House /Forebay (mrem/yr per mCi)

WWTF (mrem/yr per mCi)

Co-60 1.07E-02 2.97E-02 1.58E-01 9.58E-03 2.07E-02 2.26E-01

Cs-134 6.29E-03 1.72E-02 9.41E-02 5.54E-03 1.19E-02 1.31E-01

Cs-137 3.22E-03 7.27E-03 4.83E-02 2.35E-03 5.05E-03 5.57E-02

Eu-152 5.02E-03 1.38E-02 7.46E-02 4.45E-03 8.24E-03 1.05E-01

Eu-154 5.57E-03 1.46E-02 8.25E-02 4.73E-03 1.02E-02 1.12E-01

H-3 0.00E+00 0.00E+00 1.45E-09 0.00E+00 0.00E+00 0.00E+00

Ni-63 3.23E-08 5.61E-08 3.78E-07 1.86E-08 4.81E-08 4.16E-07

Sr-90 6.26E-05 1.39E-04 7.60E-04 4.61E-05 1.16E-04 1.04E-04

Table 8 includes an adjustment to the Table 5 peak groundwater concentration factors for the Crib House/Forebay. A revision to the demolition plan for the Crib House/Forebay was made that entailed leaving interior walls as opposed to removing them. This resulted in a decrease in the basement mixing volume as compared to that assumed in the DUST-MS modeling provided in TSD-14-009, Revision 0 and a corresponding increase in the fill and groundwater concentrations calculated in TSD 14-009, Revision 0. The Drilling Spoils Dose Factors are directly proportional to the fill concentrations which are inversely proportional to the ratio of revised/original mixing volumes. The ratio of the revised/original mixing volumes for the Crib House /Forebay was calculated in TSD 14-013, Revision 1 and determined to be 0.86. The Crib House/Forebay BFM Drilling Spoils DFs were therefore adjusted higher by the inverse of 0.86 or a factor of 1.16. Note that the Crib House/Forebay surface area was also adjusted to account for the additional remaining walls but the change in surface area does not affect the calculation of the BFM Dose Factors because the unit inventory approach used was independent of surface area. The Excel Worksheet results for the correction of the Crib House/Forebay Drilling Spoils Dose Factors is provided in Attachment 6.


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Basement Surface DCGLs 2.5.Derived Concentration Guideline Levels, in units of pCi/m2 of basement surface area, were calculated for the BFM Groundwater scenario and BFM Drilling Spoils scenario Dose Factors individually and are designated as the DCGLBS (Basement Scenario DCGLs). The Groundwater DCGLBS and Drilling Spoils DCGLBS are combined to generate the Basement DCGL (DCGLB) that accounts for the dose from both scenarios. The DCGLB is directly analogous to the DCGLW as defined in MARSSIM and is the DCGL used during FSS to demonstrate compliance.

A DCGL was calculated for each basement surface survey unit. For the purpose of this calculation, a “surface” includes all concrete walls and floors of the basements or the steel liner on the walls and floors of Containment. The areal extent of the walls and floors is the “surface area” and includes all contamination, volumetric at depth and on the surface, within the defined area.

Note that embedded pipe and penetrations will also remain in certain basements. Embedded pipe and penetrations are designated as separate survey units, with separate DCGL calculations, as described in sections 9 and 10, and are not included in the basement surface survey units. However, the total dose in a given basement is determined by summing the dose from all survey units within the basement including surface, embedded pipe, and penetrations. The dose from each survey unit is calculated using the mean FSS results (plus the results of judgmental samples and elevated areas if applicable) after the survey unit passes the Sign Test (see LTP Chapter 5).

After the basement surface areas were adjusted (as described in section 2.5.1), the DCGLBS values were calculated for each basement surface survey unit using Equation 4.

Equation 4

𝑫𝑪𝑮𝑳𝑩𝑺𝒊 = 𝟐𝟓

𝑩𝑭𝑴 𝑺𝒄𝒆𝒏𝒂𝒓𝒊𝒐 𝑫𝑭𝒔,𝒊∗

𝟏

𝑺𝑨𝑩(𝒂𝒅𝒋𝒖𝒔𝒕𝒆𝒅)∗ 𝟏𝑬 + 𝟎𝟗

Where: DCGLBSi = Groundwater or Drilling Spoils BFM scenario DCGL for radionuclide

(i) (pCi/m2) BFM Scenario DFi = Basement Fill Model Scenario Dose Factor for radionuclide (i)

(mrem/yr per mCi) 1E+09 = Conversion factor (pCi/mCi) 25 = 25 mrem/yr dose criterion

SAB(adjusted) = Adjusted area of basement surface survey unit (b) (m2)

The DCGLB values were calculated by combining the Groundwater and Drilling Spoils DCGLBS values using Equation 5.

Equation 5

𝑫𝑪𝑮𝑳𝑩,𝒊 = 𝟏

(𝟏

𝑮𝑾 𝑫𝑪𝑮𝑳𝑩𝑺𝒊+

𝟏𝑫𝑺 𝑫𝑪𝑮𝑳𝑩𝑺𝒊

)

Where: DCGLB,i = Basement Surface DCGL for radionuclide (i) (pCi/m2)

GW DCGLBS,i = Groundwater scenario DCGL for radionuclide (i) (mrem/yr per mC) DS DCGLBS,i = Drilling Spoils scenario DCGL for radionuclide (i) (mrem/yr per mC)


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2.5.1. Basement Surface Area Adjustments Basement surface area adjustments were required to ensure that the DCGLs account for the contribution of residual radioactivity from basements/structures that cannot, on their own, support a water supply well but are hydraulically connected to a basement that can support a well. The first area adjustment is to the Turbine Basement and Crib House/Forebay. The activity in the Circulating Water Intake Pipes is included in both the Crib House/Forebay and the Turbine Basement. The activity in the Circulating Water Discharge Tunnels is included with the Turbine Basement.

The DCGL calculations account for the activity in the Intake Pipe by summing the surface areas of the Intake Pipe and Crib House/Forebay. The activity in the Discharge Tunnel is accounted for by summing the surface areas of the Discharge Tunnel and Turbine Basement. The surface area of the Intake Pipe is also added to Turbine basement because openings were cut into the Intake Pipe at a point within the Turbine Basement to access the pipe for FSS measurements. There are also several large pipes ranging in diameter from 36 inches to 12 feet that connect the Turbine basement to the Circulating Water Discharge Tunnels and have been cut and sealed by water tight weld of a 1 inch thick steel plate over the opening. These pipes are designated as “Circulating Water Discharge Pipe” and the area in these pipes is also included in the area summation for the Turbine Basement DCGL calculation. The Buttress Pits and Tendon Tunnels are hydraulically connected to the Turbine Basement (via the Steam Tunnels). The surface areas of these structures are therefore also added to the Turbine Basement.

The summed areas were then used as the “SAb (adjusted)” term in Equation 4 to calculate the DCGLs for the Crib House/Forebay and Turbine Basement. As seen in Equation 4, increasing the surface area decreases the DCGLs. The lower DCGLs calculated for the Crib House/Forebay and Turbine Basement, based on the summed areas, were then also applied to the Circulating Water Intake Pipes, Discharge Tunnels (and associated Circulating Water Pipes), and Buttress Pits and Tendon Tunnels. These areas are accounted for during FSS by summing with the associated basements as listed in Table 11. See LTP Rev 1, Chapter 5, section 5.5.7.1 for details on how the summation will be performed during FSS data assessment.

A second surface area adjustment was required in the DCGL calculations to account for the contribution of residual radioactivity in the SFP/Transfer Canal to the groundwater pathway. As discussed in LTP Chapter 6, section 6.5.4, the SFP/Transfer Canal geometry could not support a water well and therefore the BFM Groundwater Dose Factor was set to zero (see Table 7). However, the potential for the residual radioactivity in the SFP/Transfer Canal to contribute to the groundwater is accounted for by adding the SFP/Transfer Canal source term (as represented by the surface area) to the Containment Basement and to the Auxiliary Basement. The activity could mix with the Containment Basement through the Fuel Transfer Tube. Activity could mix with the Auxiliary Basement through an opening created by removing the wall between the Transfer Canal and Auxiliary Basement during demolition. The surface area adjustment, and corresponding DCGL calculations, conservatively assume that the activity in the SFP/Transfer Canal is in both the Containment and Auxiliary Basement simultaneously.

The inputs to the calculation of the adjusted surface area for each basement surface area adjustments are provided in Table 9 and Table 10. Table 11 provides the adjusted surface areas for the DCGL calculation. Basements not listed in Table 11 (SFP/Transfer Canal and WWTF) did not require adjustment and the areas in Table 9 are used for the DCGL calculation.


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Table 9 Basement Surface Areas (Walls and Floors) Basement

Wall and Floor Surface Area1

m2

Auxiliary Basement 6503

Containment Basement

2759

SFP/Transfer Canal 723

Turbine Building Basement

14864

Crib House/Forebay2 13842

WWTF 1124 Note 1: Reference: TSD 14-014 Revision 1, Table 64

Table 10 Surface Areas for Circulating Water Intake Pipe, Circulating Water Discharge

Tunnel, Circulating Water Discharge Pipe and Buttress Pits/Tendon Tunnels Structure

Surface Area1

ft2 Surface Area

m2 Circulating Water Discharge Tunnel1 (2)

52400 4868

Circulating Water Discharge Pipe4

NA 1075

Circulating Water Intake Pipe2.3 (2)

52086 4412

Buttress Pits/Tendon Tunnels5

20626 1916

Note 1: Reference TSD 14-014, Table 64. Area includes both Discharge Tunnels. Note 2: TSD 14-016, Table 46. Note 3: Area includes both Intake Pipes Note 4: TSD 14-016, Table 50 Note 5: TSD 14-014, Revision 2, Tables 60 & 63, and TSD 13-005 Table 15

Table 11 Adjusted Basement Surface Areas for DCGL Calculation Basement Structures Included in

Total SA/V Calculation Total SA(ft2)

Containment Containment + SFP/Transfer Canal 3482 Auxiliary Auxiliary + SFP/Transfer Canal 7226

Turbine

Turbine + Circulating Water Discharge Tunnel + Circulating Water Intake Pipe + Circulating Water Discharge Pipe + Buttress Pits/Tendon Tunnel

27135

Crib House/ Forebay Crib House/Forebay + Circulating Water Intake Pipe 18254


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2.5.2. Basement Surface DCGL Calculation The BFM Scenario DCGLs were calculated using Equation 4 with the surface areas in Table 11 as the for the “SAb (adjusted)” term. The BFM Scenario Dose Factors used in the calculations were from Tables 7 and 8. The results are provided in Tables 12-13. The Basement Surface DCGLB was calculated using Equation 5 with results provided in Table 14. The calculations are performed in Excel spreadsheet “TSD 14-010 Revision 4.xls”. The worksheet inputs and results are reproduced in Attachment 16.

Table 12 BFM Groundwater Scenario DCGLBS (not adjusted for insignificant contributor dose)

Nuclide Auxiliary (pCi/m2)

Containment (pCi/m2)

Fuel (pCi/m2)

Turbine (pCi/m2)

Crib House/ Forebay (pCi/m2)

WWTF (pCi/m2)

Co-60 3.46E+10 6.28E+08 NA 3.21E+08 4.81E+08 4.27E+07

Cs-134 3.73E+08 3.63E+07 NA 1.86E+07 2.79E+07 2.46E+06

Cs-137 1.31E+08 4.58E+07 NA 2.35E+07 3.51E+07 3.10E+06

Eu-152 5.81E+10 1.85E+09 NA 9.51E+08 1.42E+09 1.27E+08

Eu-154 5.11E+10 1.28E+09 NA 6.55E+08 9.78E+08 8.68E+07

H-3 5.58E+08 2.64E+08 NA 1.36E+08 2.03E+08 1.80E+07

Ni-63 1.21E+10 4.47E+09 NA 2.30E+09 3.42E+09 3.04E+08

Sr-90 1.05E+07 1.59E+06 NA 8.14E+05 1.22E+06 1.08E+05

Table 13 BFM Drilling Spoils Scenario DCGLBS (not adjusted for insignificant contributor dose)



Fuel (pCi/m2)

Turbine (pCi/m2)


WWTF (pCi/m2)

Co-60 3.23E+08 2.42E+08 2.19E+08 9.61E+07 6.61E+07 9.83E+07

Cs-134 5.50E+08 4.18E+08 3.67E+08 1.66E+08 1.15E+08 1.69E+08

Cs-137 1.07E+09 9.88E+08 7.16E+08 3.93E+08 2.71E+08 4.00E+08

Eu-152 6.89E+08 5.21E+08 4.64E+08 2.07E+08 1.43E+08 2.12E+08

Eu-154 6.22E+08 4.90E+08 4.19E+08 1.95E+08 1.34E+08 1.99E+08

H-3 2.38E+15 4.94E+15 2.38E+16 6.34E+14 9.42E+14 1.53E+16

Ni-63 1.07E+14 1.28E+14 9.15E+13 4.96E+13 2.85E+13 5.34E+13

Sr-90 5.53E+10 5.15E+10 4.55E+10 2.00E+10 1.18E+10 2.14E+10


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Table 14 Basement Surface DCGLB (not adjusted for insignificant contributor dose)

Nuclide Auxiliary

(pCi/m2)

Containment

(pCi/m2)

Fuel

(pCi/m2)

Turbine

(pCi/m2)

Crib House/ Forebay

(pCi/m2)

WWTF

(pCi/m2)

Co-60 3.20E+08 1.75E+08 1.75E+08 7.40E+07 5.81E+07 2.97E+07

Cs-134 2.22E+08 3.34E+07 3.34E+07 1.68E+07 2.24E+07 2.43E+06

Cs-137 1.17E+08 4.38E+07 4.38E+07 2.22E+07 3.11E+07 3.08E+06

Eu-152 6.81E+08 4.07E+08 4.07E+08 1.70E+08 1.30E+08 7.94E+07

Eu-154 6.14E+08 3.54E+08 3.54E+08 1.50E+08 1.18E+08 6.04E+07

H-3 5.58E+08 2.64E+08 2.64E+08 1.36E+08 2.03E+08 1.80E+07

Ni-63 1.21E+10 4.47E+09 4.47E+09 2.30E+09 3.42E+09 3.04E+08

Sr-90 1.05E+07 1.59E+06 1.59E+06 8.14E+05 1.22E+06 1.08E+05 Note 1: DCGL for Spent Fuel Building/Transfer Canal set equal to the lower of either the Auxiliary or Containment DCGL Containment DCGL was lower for all ROC therefore Spent Fuel Building/Transfer Canal DCGL set equal to Containment An additional step in the calculation of the basement surface DCGLs is the adjustment for the dose from insignificant contributor radionuclides. In accordance with NUREG 1757, the insignificant radionuclides can be removed from detailed assessment but the dose attributable to the removed radionuclides must be accounted for. As discussed in LTP Chapter 6, section 6.5.2.3, the insignificant contributor dose percentage was assigned a value of 10% for Containment and 5% for all other basements. The insignificant contributor dose adjustment factor is therefore 0.90 (1-0.10) for Containment and 0.95 (1 - 0.05) for all other basements. The Adjusted DCGLs are calculated using Equation 6-5 with the results provided in Tables 15, 16, and 17. Note that the DCGL for Spent Fuel Building/Transfer Canal set equal to the lower of either the Auxiliary or Containment DCGL. Because the Containment DCGL was lower for all ROC the Spent Fuel Building/Transfer Canal DCGL were set equal to Containment DCGL.

Equation 5 𝑨𝒅𝒋𝒖𝒔𝒕𝒆𝒅 𝑫𝑪𝑮𝑳 = 𝑫𝑪𝑮𝑳 ∗ 𝑰𝑪 𝑫𝒐𝒔𝒆 𝑨𝒅𝒋𝒖𝒔𝒕𝒎𝒆𝒏𝒕

Where: Adjusted DCGL = BFM DCGL adjusted for the insignificant radionuclide dose

percentage (pCi/m2) DCGL = Basement Surface DCGLs (pCi/m2) IC Dose Adjustment = Insignificant Contributor Dose Adjustment Factor of 0.90 for

Containment and 0.95 for all other basements


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Table 15 Adjusted BFM Groundwater Scenario DCGLBS (Adjusted for insignificant contributor dose)



Fuel ((pCi/m2)

Turbine (pCi/m2)


WWTF (pCi/m2)

Co-60 3.28E+10 5.65E+08 NA 3.05E+08 4.57E+08 4.05E+07

Cs-134 3.55E+08 3.27E+07 NA 1.77E+07 2.65E+07 2.34E+06

Cs-137 1.25E+08 4.12E+07 NA 2.23E+07 3.34E+07 2.95E+06

Eu-152 5.52E+10 1.67E+09 NA 9.03E+08 1.35E+09 1.21E+08

Eu-154 4.85E+10 1.15E+09 NA 6.22E+08 9.29E+08 8.24E+07

H-3 5.30E+08 2.38E+08 NA 1.29E+08 1.93E+08 1.71E+07

Ni-63 1.15E+10 4.02E+09 NA 2.18E+09 3.25E+09 2.89E+08

Sr-90 9.98E+06 1.43E+06 NA 7.74E+05 1.16E+06 1.03E+05 Table 16 Adjusted BFM Drilling Spoils Scenario DCGLBS (Adjusted for insignificant

contributor dose)



Fuel (pCi/m2)

Turbine (pCi/m2)


WWTF (pCi/m2)

Co-60 3.07E+08 2.18E+08 2.08E+08 9.13E+07 6.28E+07 9.34E+07

Cs-134 5.23E+08 3.77E+08 3.49E+08 1.58E+08 1.09E+08 1.61E+08

Cs-137 1.02E+09 8.89E+08 6.80E+08 3.73E+08 2.58E+08 3.80E+08

Eu-152 6.54E+08 4.69E+08 4.41E+08 1.97E+08 1.36E+08 2.01E+08

Eu-154 5.91E+08 4.41E+08 3.98E+08 1.85E+08 1.28E+08 1.89E+08

H-3 2.26E+15 4.45E+15 2.26E+16 6.02E+14 8.95E+14 1.45E+16

Ni-63 1.02E+14 1.15E+14 8.69E+13 4.71E+13 2.70E+13 5.08E+13

Sr-90 5.25E+10 4.63E+10 4.32E+10 1.90E+10 1.12E+10 2.03E+10


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Table 17 Adjusted Basement Surface DCGLB (Adjusted for insignificant contributor dose)



Fuel1

(pCi/m2) Turbine (pCi/m2)


WWTF (pCi/m2)

Co-60 3.04E+08 1.57E+08 1.57E+08 7.03E+07 5.52E+07 2.83E+07

Cs-134 2.11E+08 3.01E+07 3.01E+07 1.59E+07 2.13E+07 2.31E+06

Cs-137 1.11E+08 3.94E+07 3.94E+07 2.11E+07 2.96E+07 2.93E+06

Eu-152 6.47E+08 3.66E+08 3.66E+08 1.62E+08 1.23E+08 7.55E+07

Eu-154 5.83E+08 3.19E+08 3.19E+08 1.43E+08 1.12E+08 5.74E+07

H-3 5.30E+08 2.38E+08 2.38E+08 1.29E+08 1.93E+08 1.71E+07

Ni-63 1.15E+10 4.02E+09 4.02E+09 2.18E+09 3.25E+09 2.89E+08

Sr-90 9.98E+06 1.43E+06 1.43E+06 7.74E+05 1.16E+06 1.03E+05

BFM Drilling Spoils Scenario Area Factor 2.6.

An area factor (AF) for the BFM Drilling Spoils Scenario was calculated for the Elevated Measurement Comparison test. The Drilling Spoils AF applies to floors only. An AF is required for all Class 1 survey units which include only the Auxiliary Basement and SFP/Transfer Canal. The AF is based on the assumption that all of the activity is on the floor as opposed to the being distributed over the walls and floors as in the DCGLBS calculation. If all of the allowable activity is distributed over the floor only, the activity in the drilling spoils after contacting the floor will result in 25 mrem/yr as required by the AF definition. Basing the Drilling Spoils AF on this assumption is conservative in that it assumes that all of the measured activity either remains in the concrete after license termination or is released to a hypothetical 8 inch diameter column of fill directly above the elevated area with no horizontal mixing. The first step in the AF calculation is to modify the DCGLBS in Table 16 by the ratio of total surface area (walls and floors) to the floor surface area only. This results in concentration (pCi/m2) on the floor that would result in 25 mrem/yr for the drilling spoils pathway only. The Drilling Spoils AF is then calculated by dividing the modified Drilling Spoils DCGLBS by the DCGLB. The AF calculation is shown in Equation 6. The basement floor areas and the resulting AFs are provided in Tables 18 and 19 (the total surface areas are provided in Table 11). The calculations are performed in Excel spreadsheet “TSD 14-010 Revision 4.xls”. The worksheet inputs and results are reproduced in Attachment 17.


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Equation 6

𝑫𝒓𝒊𝒍𝒍𝒊𝒏𝒈 𝑺𝒑𝒐𝒊𝒍𝒔 𝑨𝑭𝒃,𝒊 =

𝑫𝒓𝒊𝒍𝒍𝒊𝒏𝒈 𝑺𝒑𝒐𝒊𝒍𝒔 𝑫𝑪𝑮𝑳𝑩𝑺,𝒊 ∗ 𝑺𝑨𝒕𝒐𝒕𝒂𝒍,𝒃

𝑺𝑨𝒇𝒍𝒐𝒐𝒓,𝒃⁄

𝑫𝑪𝑮𝑳𝑩,𝒊

Where:

Drilling Spoils AFb.i = Drilling Spoils Area Factor for basement (b) and radionuclide (i)

SAtotal,b = Total surface area of walls and floors in Basement (b) SAfloor,b = Floor surface area in Basement (b) Drilling Spoils DCGLBS,i = Drilling Spoils DCGL for Basment (b) and radionuclide (i)

from Table 16 Drilling Spoils DCGLB,i = DCGLB for Basment (b) and radionuclide (i) from Table 17

Table 18 Floor Surface Areas for Class 1 Basements Basement

Floor Surface Area

ft2 Floor Surface Area

m2

SFP/Transfer Canal 2448 227

Auxiliary Basement 27149 2522

Containment 16489 1532 Note 1: Reference TSD 14-021, Revision 1, Table 2

Table 19 Drilling Spoils Scenario Area Factors Auxiliary

Spent Fuel Pool/Transfer

Canal

Containment

Co-60 2.89E+00 4.20E+00 3.15E+00 Cs-134 7.09E+00 3.69E+01 2.84E+01 Cs-137 2.63E+01 5.49E+01 5.13E+01 Eu-152 2.90E+00 3.82E+00 2.91E+00 Eu-154 2.90E+00 3.97E+00 3.15E+00

H-3 1.22E+07 3.02E+08 4.25E+07 Ni-63 2.53E+04 6.87E+04 6.51E+04 Sr-90 1.51E+04 9.60E+04 7.36E+04


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3. RESRAD Modeling for Soil DCGL Determination Site-specific DCGLs were developed for residual radioactivity in surface and subsurface soil that represent the 10 CFR 20.1402 dose criterion of 25 mrem/yr. A DCGL was calculated for each ROC determined in TSD 14-019. The ROC are Cs-137, Cs-134, Co-60, Cr-90, and Ni-63.

Surface soil is defined as contamination contained in the first 0.15 m layer of soil. Subsurface soil is defined as a layer of soil beginning at the surface that extends beyond 0.15 m. The Subsurface soil thickness is arbitrarily set to a 1 m depth. DCGLs are calculated for both the 0.15 m and 1 m thicknesses. Both the surface and subsurface DCGLs assume a continuous source term layer from the ground surface downward. There are no expectations of encountering soil contamination in a geometry consisting of a clean surface layer of soil over a contaminated subsurface soil layer.

Detailed description of the soil DCGL conceptual model and parameter justification is provided in LTP Chapter 6, section 6.8.

RESRAD version 7.0 was used to calculate DCGLs for surface and subsurface soil.

Soil Uncertainty Analysis 3.1.Parameter uncertainty analysis was performed following the process described in LTP Chapter 6, section 6.9.2. The parameters used for the uncertainty analysis of the surface and subsurface soil dose modeling are the same as were used for the BFM RESRAD uncertainty analysis, with the exception of contaminated zone thickness. A 0.15 m thickness is used for surface soil and 1.0 m thickness for subsurface soil. The unsaturated zone depth was also adjusted to ensure that the depth to the water table remains constant for both the 0.15 m and 1.0 m contaminated zone thicknesses.

The RESRAD input parameters used for the uncertainty analysis of both surface and subsurface soil are provided in Attachment 7. The RESRAD Uncertainty Reports were generated for surface and subsurface soil and for each ROC individually. The reports are provided in Attachment 8.

Deterministic parameters were selected for behavioral, metabolic and Priority 3 physical parameters in accordance with the process in Figure 1. The majority of the Priority 1 and 2 physical parameters are assigned the parameter distributions from NUREG/CR-6697.

Surface soil parameters with a |PRCC| result greater than 0.25 are listed in Table 20. Tables 21 and 22 provide the selected 75th or 25th percentile deterministic values for surface soil from the NUREG/CR-6697 distributions for the positively and negatively correlated parameters, respectively.

Subsurface soil parameters with a |PRCC| result greater than 0.25 are listed in Table 23. Tables 24 and 25 provide the selected 75th or 25th percentile deterministic values for subsurface soil. The median of the NUREG/CR-6697 distributions was assigned to the Priority 1 and 2 parameters that were not sensitive (i.e., not listed in Tables 6-20 and 6-23).


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Table 20 Surface Soil DCGL Uncertainty Analysis Results for Parameters with |PRCC| >0.25


Co-60 Cs-134 Cs-137 Ni-63 Sr-90

Depth of Soil Mixing Layer NS -0.30 -0.36 -0.56 NS

Depth of Roots -0.30 -0.47 -0.53 -0.78 -0.90

External Gamma Shielding Factor 0.99 0.96 0.93 NS NS

Density of Contaminated Zone 0.59 0.32 NS NS NS

Plant Transfer Factor 0.34 0.57 0.63 0.86 0.96

Meat Transfer Factor 0.26 0.25 0.31 NS NS

Milk Transfer Factor NS 0.25 0.31 0.88 0.36

Table 21 Selected Deterministic Values for Surface Soil DCGL Sensitive

Parameters from Table 9 That Are Radionuclide Independent


Depth of Soil Mixing Layer 25th 0.15


External Gamma Shielding Factor

75th

0.40

Density of Contaminated Zone 75th 1.681

Note 1: Density identified as sensitive and positively correlated. The higher site-specific value for sand density is 1.8 g/cm3 which was applied.

Table 22 Deterministic Values for Surface Soil DCGL Sensitive Parameters from Table 9 that are Radionuclide Dependent

Radionuclide Plant Transfer Factor

75th Percentile

Meat Transfer Factor

75th Percentile

Milk Transfer Factor

75th Percentile

Co-60 0.15 0.058 NS

Cs-134 0.078 0.065 0.014

Cs-137 0.078 0.065 0.014

Ni-63 0.092 NS 0.032

Sr-90 0.59 NS 0.0027


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Table 23 Subsurface Soil DCGL Uncertainty Analysis Results for Parameters with |PRCC| > 0.25


Co-60 Cs-134 Cs-137 Ni-63 Sr-90

Depth of Roots -0.45 -0.60 -0.69 -0.86 -0.93

External Gamma Shielding Factor

0.97 0.90 0.84 NS NS

Plant Transfer Factor 0.67 0.83 0.88 0.96 0.98

Meat Transfer Factor 0.40 0.29 0.37 NS NS Milk Transfer Factor NS 0.35 0.45 0.91 0.44

Table 24 Selected Deterministic Values for Subsurface Soil DCGL Sensitive

Parameters from Table 12 that are Radionuclide Independent



External Gamma Shielding Factor 75th 0.40

Table 25 Deterministic Values for Subsurface Soil DCGL Sensitive Parameters

from Table 12 that are Radionuclide Dependent

Radionuclide Plant Transfer Factor 75th Percentile

Meat Transfer Factor 75th Percentile

Milk Transfer Factor 75th Percentile

Co-60 0.15 0.058 NS

Cs-134 0.078 0.065 0.014

Cs-137 0.078 0.065 0.014

Ni-63 0.092 NS 0.032

Sr-90 0.59 NS 0.0027

RESRAD Results and Soil DCGLs 3.2.

The surface and subsurface soil DCGLs were calculated using the deterministic parameter set provided in Attachment 9. The RESRAD Summary Reports for surface and subsurface soil are provided in Attachment 10. The surface and subsurface soil DCGLs are provided in Table 26. The insignificant contributor dose percentage calculated in TSD 14-019 is 0.171%. However, to provide additional margin and allow for


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simplified assessment of additional HTD analysis of soil during continuing characterization, the applied insignificant dose contribution was increased to 10%. The adjustment factor is 0.90 (1-0.1). The adjusted DCGL are calculated by multiplying the values in Table 26 by 0.9 and are provided in Table 27.

Table 26 RESRAD Surface and Subsurface Soil DCGLs

Radionuclide Surface Soil DCGL

(pCi/g) Subsurface Soil DCGL

(pCi/g)

Co-60 4.7 3.8

Cs-134 7.5 4.9

Cs-137 15.7 8.6

Ni-63 3969 847

Sr-90 13.4 1.8

Table 27 RESRAD Surface and Subsurface Soil DCGLs Adjusted

to account for Insignificant Contributor Dose

Radionuclide Adjusted

Surface Soil DCGL (pCi/g)

Adjusted Subsurface Soil DCGL

(pCi/g) Co-60 4.2 3.4

Cs-134 6.7 4.4

Cs-137 14.1 7.7

Ni-63 3572 763.0

Sr-90 12.0 1.6

4. RESRAD Modeling for Concrete Radionuclide of Concern Selection BFM GW Dose Factors and DCGLs for the Initial Suite of Potential Radionuclides 4.1.

The set of radionuclides evaluated in section 2 was comprised of the ROC selected in TSD 14-019. The process of selecting the ROC entailed determining an “initial suite” of radionuclides that could potentially be present at ZNPS and then removing insignificant dose contributors from the initial suite. A systematic screening process was used to remove very low abundance or low probability radionuclides from a comprehensive list of all possible radionuclides resulting in the “initial suite” that is reproduced in Table28. See LTP Chapter 6, Section 6.5.2 and TSD 14-019 for detailed discussions of the process for selecting the initial suite.

Table 28 List of 26 potentially significant radionuclides (from TSD 14-019) H-3 Co-60 Tc-99 Cs-137 Eu-155 Pu-241 C-14 Ni-63 Ag-108m Pm-147 Np-237 Am-241 Fe-55 Sr-90 Sb-125 Eu-152 Pu-238 Am-243 Ni-59 Nb-94 Cs-134 Eu-154 Pu-239/240 Cm-243/244


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NUREG-1757, section 3.3 states that radionuclides contributing no greater than 10% percent of the dose criterion (i.e., 2.5 mrem/yr) are considered to be “insignificant contributors”. This 10% percent criterion applies to the sum of the dose contribution from the aggregate of radionuclides designated as insignificant contributors.

TSD 14-019 uses the results of BFM RESRAD dose modeling for the initial suite in conjunction with DUST-MS modeling by TSD 14-031, "Brookhaven National Laboratory Report: Basement Fill Model Evaluation of Maximum Radionuclide Concentrations for Initial Suite of Radionuclides" (8) to determine the BFM Dose Factors from the initial suite radionuclides in the same manner as described in section 2 for the ROC radionuclides. The BFM Dose Factors calculated in TSD 14-019 are used with the radionuclide mixture fractions in ZNPS concrete to calculate relative dose. An initial estimate of the relative dose contribution from insignificant contributors was calculated and the ROC nuclides selected.

The RESRAD parameters used for the BFM modeling of the initial suite radionuclides are provided in Attachment 11. The RESRAD Summary Report and Concentration Report are provided in Attachment 12.

The RESRAD parameter set is the same as was used for the BFM GW Exposure Factor modeling for

ROC described in section 2, including adjustment for the radionuclide independent sensitive

parameters in Table 2. The distribution coefficients for the initial suite radionuclides were the lowest

values recommended in TSD 14-004 (5) which is the same reference used to select distribution

coefficients for ROC BFM RESRAD modeling in section 2.

A detailed uncertainty analysis, including all 26 radionuclides, was not merited for the ROC screening calculations given the apriori understanding that only limited water dependent pathways are applicable to the BFM. ROC screening is based on relative dose between the 26 radionuclides in Table 17, not absolute dose, so the significance of parameter variability is reduced. Notwithstanding the relative nature of the ROC screening assessment, qualitative uncertainty analysis was performed which indicated that approximately 50% of the dose for Cs-137 (the predominate radionuclide) was attributable to the plant, meat and milk ingestion pathways with the remainder of the dose from drinking water. For simplicity and to ensure that the calculated dose is conservative for all radionuclides, the plant/meat/milk transfer factors were set to the 75th percentile of the NUREG-6697 distribution for all radionuclides. This was done to maximize the relative dose, particularly for the low abundance radionuclides, to ensure that the dose attributed to the insignificant contributors is maximized. Note that for the eight ROC, the plant transfer factors were set to the same values used in Table 3 based on sensitivity analysis. This ensures that the values for the ROC in both RESRAD runs are the same and further maximizes the impact of the low abundance radionuclides.

The final calculation of dose from insignificant contributor radionuclides was performed in TSD 14-019 using BFM DCGLs that were calculated for the initial suite radionuclides. Insignificant contributor dose calculations were also performed for the Drilling Spoils DCGL alone because the Drilling Spoils were used separately to calculate BFM AFs (see section 2.6).

The initial suite DCGLs were calculated using the same process described for ROC DCGLs in section 2.5. The calculations were performed in Excel spreadsheet “TSD 14-010 Revision 4.xls”. The inputs and calculation results are provided in Attachment 18.


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Soil Area Factors for Determining BFM Drilling Spoils Dose Factors for the Initial Suite 4.2.of Potential Radionuclides

As described in TSD 14-021, soil AFs were required for the initial suite of radionuclides for four area sizes as listed below:

0.1 m2 0.3 m2 3.0 m2 10 m2

RESRAD runs were required for the above areas as well as the base case area of 64,500 m2 to determine the AFs for the initial suite of radionuclides. The AFs are calculated in TSD 14-021 using the RESRAD results. The soil RESRAD input parameters for the AF runs were the same as those used for soil DCGLs (see Attachment 9) with the parameters for ‘contaminated fraction of plant food, meat and milk’ changed from 1 to -1 to allow RESRAD to account for smaller contaminated areas. The ‘length parallel to aquifer flow’ also required adjustment to be consistent with the smaller areas. The methods used for RESRAD modeling for AF’s is the same as described in Zion Solutions TSD 14-011, “Soil Area Factors” (9). The RESRAD Summary Reports are provided in Attachment 13.

5. RESRAD Modeling for Soil Radionuclide of Concern Selection As described in TSD 14-019, the initial suite radionuclides in Table 17 were also used to determine the ROCs, and insignificant contributors for soil. A RESRAD run was required to determine the ‘dose to source ratio’ for all initial suite radionuclides in order to identify the insignificant dose contributors and the dose from the aggregate of insignificant contributor radionuclides removed from detailed consideration.

The RESRAD parameter set was the same as used for the ROC DCGL calculation with two adjustments. First, soil distribution coefficients were required for all additional radionuclides in the initial suite which were selected from the same source that was used for the ROC RESRAD analysis, i.e., Reference 7. Daughter products were assigned the mean of the NUREG 6697 distribution as was done for the BFM initial suite evaluation for ROC determination. An additional change was setting all plant, meat, and milk transfer factors to the 75th percentile to maximize the dose contribution from all radionuclides. Note that for the 5 ROCs, the plant transfer factors were the same as were used in Table 11 based on sensitivity analysis. This ensures that the values for the ROCs in both RESRAD runs are the same and maximizes the impact of the low abundance radionuclides. The surface soil source thickness (0.15 m) was used in the initial suite runs for ROC determination because minimal, if any, soil contamination is expected below 0.15 m based on characterization results.

The RESRAD Summary Report for the RESRAD analysis of the initial suite radionuclides for soil ROC determination is provided in Attachment 14.

6. RESRAD Soil Dose Modeling for Industrial Use Alternate Scenario An Alternate dose scenario is evaluated in TSD-021 that assumes large scale industrial excavation of the ZION basements after license termination. Excavation of the very deep basements would be prohibitively expensive and is considered a “less likely but plausible” scenario. NUREG-1757, Table 5.1, states that assessment of a “less likely but plausible scenario” is “not analyzed for compliance, but is used to risk-inform the decision.”


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If a large scale excavation of the basements, were to occur it would not be for residential use but to develop the property for industrial use. The cost and technical challenges of the excavation required for the deep basements, that are all below the water table, would only be justified for a large scale industrial project that would be present on the site for decades. Therefore, for the assessment of the large scale industrial excavation scenario a dose assessment is required that assumes industrial use as opposed to residential use. This section describes the RESRAD input parameters used for modeling an industrial use scenario for soil and provides the results of the dose assessment. The resulting “DCGLs” are used in TSD 14-021 to assess the large scale industrial excavation alternate scenario. The large scale excavation scenario in TSD 14-021 assumes that the excavated material is spread on the surface over a 1 m depth. Therefore, the RESRAD parameters for the industrial use soil assessment were set to the same values as used for the Subsurface soil dose assessment (see Attachment 9) with the following changes:

Inhalation Rate: 1917 m3/yr NUREG/CR-5512, Vol. 3 Table 5.1.1 mean value is 8400/y which equates to 23 m3/d. Industrial Scenario m3/yr =23 m3/d ÷ 24h/d * 2000 h/y.

Fraction of time spent indoors: 0.1875 NUREG-6697 Att. C, Table 7.6-1 recommends a median indoor work day as 8.76 hours/day. Assuming 5 days a week and 50 weeks per years this equates to 2190 hours per year. Majority of industrial work is expected to be indoors. Consistent with Table 2-3 of the “User’s Manual for RESRAD Version 6”, 75% of work time is indoors and 25% outdoors. The corresponding RESRAD indoor Fraction parameter = (2190*0.75)/(24*365) = 0.1875 Fraction of time spent outdoors (onsite): 0.0625 As explained in the basis for the Indoor Fraction parameter, the indoor time fraction was set at 75% and outdoor time fraction at 25%. The corresponding RESRAD outdoor time fraction is (2190*.25)/(24*365) = 0.0625. Drinking water intake: 327 L/y NUREG/CR-5512, Vol. 3 Table 6.87. Industrial Scenario water supply assumed to be from an onsite well. 478 L/y from NUREG/CR-5512 corresponds to 1.31 L/d which is considered a conservative value for 8 hour work day. 1.31 L/d * 250 work days = 327 L/y

Plant/Meat/Milk Pathways: All food ingestion pathways inactive in industrial scenario. Kds for Sr-90 and Ni-63: Kds for Sr-90 and Ni-63 set to the minimum site-specific values to maximize dose through groundwater pathway which is predominant pathway with plant/meat/milk inactive. Kds for remaining radionuclides are set to minimum values in the Subsurface Soil parameter set used therefore no adjustment required.

The File name for the Industrial Use scenario RESRAD Summary Report is listed below. The full report is stored electronically.

Zion Industrial Use Soil RESRAD Summary Report 5_27.pdf


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The resulting Industrial Use DCGLs are listed in Table 29 column 2. Note that H-3, Eu-152, and Eu-154 were added to the list of radionuclides evaluated because the industrial use scenario DCGLs were used in TSD 14-021 to evaluate the excavation of backfilled concrete which includes and H-3, Eu-152 and Eu-154 as ROCs for the Containment Basement. Table 29, column 3 provides the DCGLs after adjustment to account for the dose fraction attributable for the removed insignificant contributors. The calculated insignificant dose fraction assigned to surface soil, i.e., 0.171% (see TSD 14-019 Revision 2 Table 24), was used to adjust the industrial use DCGLs. This is conservative because the plant pathways are not applicable to industrial use which reduces the relative dose fraction from non-gamma emitting radionuclides (i.e., HTD radionuclides) which are the vast majority of radionuclides removed as insignificant dose contributors.

Table 29 Industrial Use Concentrations “DCGLs”and Adjusted DCGLs

Radionuclide Industrial Use DCGL

(pCi/g)

Adjusted Industrial Use DCGL

(pCi/g)

Co-60 12.36 12.34 Cs-134 23.37 23.33 Cs-137 55.86 55.76 Eu-152 27.48 27.43 Eu-154 25.47 25.43

H-3 1819.00 1815.89 Ni-63 9.50E+06 9.48E+06 Sr-90 14.09 14.07

7. Soil Kd Uncertainty and Sensitivity Assessment An assessment was performed to determine the sensitivity of soil dose to Kd. Four soil types were sampled from the Zion site and analyzed by Brookhaven National Laboratory for Kd; Disturbed Sand, Native Sand, Silt/Clay, and Clay (Reference 5). The site surface and subsurface soil is contained in the Upper Sand Unit and is a mix of Disturbed Sand and Native Sand. The majority of the site surface soil is Disturbed Sand. The Silt/Clay and Clay were sampled from depths of 24’-28’ below ground surface (bgs) and 31’-36’ bgs, respectively. These samples were collected to understand the characteristics of the Upper Silt/Clay Unit which underlies the Upper Sand Unit. The Upper Silt/Clay unit is an aquitard that inhibits groundwater flow between the Upper and Lower Sand Unit aquifers. The Zion dose model conservatively assumes that all wells are screened in the Upper Sand Unit as opposed to the Lower Sand Unit which is isolated from the Zion site source term by the clay aquitard.

The site soil type (down at least several feet) is predominantly Disturbed Sand as a result of excavation and backfill during plant construction. However, some areas could consist of Native Sand Kds. Therefore, both sand types are considered applicable to the surface (0.15 m depth) and subsurface (1 m depth) soil categories. The site-specific Kds for Native Sand and Disturbed Sand are listed in Reference 5 for each ROC and shown in Tables 30 and 31.


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The assessment included a probabilistic uncertainty analysis for Surface and Subsurface soil with the Kds being the only parameters considered probabilistically. This maximizes the effect of Kd on the dose results and the chance for a Kd being identified as sensitive (using the criteria described in section 3.1, i.e., absolute value of PRCC being greater than 0.25). The Kd parameter distributions were entered in RESRAD as uniform distributions with minimum and maximum values defined by the Native or Disturbed sand site-specific Kds. The uncertainty analysis did not identify any of the Kd parameters as being sensitive. The RESRAD Uncertainty Report file names are listed below. The reports are stored electronically.

Zion Subsurface Soil Sensitivity RESRAD Uncertainty Report.pdf Zion Surface Soil Sensitivity RESRAD Uncertainty Report.pdf

An additional sensitivity analysis was performed that included deterministic RESRAD analyses of Surface Soil and Subsurface Soil using the maximum site-specific sand Kd. The resulting DCGLs were compared to the DCGLs calculated using the minimum site-specific sand Kd. The file names of the two RESRAD Summary Reports used for the analysis are listed below. The full reports are stored electronically.

Zion Subsurface Soil Sensitivity RESRAD Summary Report.pdf Zion Surface Soil Sensitivity RESRAD Summary Report.pdf

The results are summarized in Tables 30-32. The deterministic approach is very conservative in that it includes each radionuclide independently and ignores the actual dose consequences of a given radionuclide in the context of the radionuclide mixture. As seen on Table 32, when Sr-90 is considered independently the maximum Kd resulted in a DCGL that was 6% lower. Ni-63 is lower by a very small fraction. The gamma emitters, which represent the vast majority of dose form soil were not affected by the Kd change.

Although the Sr-90 DCGL was lower by 6% with the maximum Kd, when the radionuclide mixture percentage of Sr-90 is considered the dose consequences are orders of magnitude lower than 6%. Notwithstanding the fact that the calculated dose increase if very low, the maximum Kds will be used for both Sr-90 and Ni-63 in the Surface and Subsurface DCGL modeling.

Table 30 Surface and Subsurface Soil DCGL with Minimum Site-Specific Sand Kds Radionuclide Kd Surface Soil DCGL Subsurface Soil

(cm3/g) (pCi/g) (pCi/g) Co-60 1161 4.734 3.825 Cs-134 615 7.524 4.930 Cs-137 615 15.76 8.606 Ni-63 62 3995 848.6 Sr-90 2.3 14.36 1.860


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Table 31 Surface and Subsurface Soil DCGL with Maximum Site-Specific Sand Kds Radionuclide Kd Subsurface Soil DCGL Subsurface Soil

(cm3/g) (pCi/g) (pCi/g) Co-60 1161 4.734 3.825 Cs-134 635 7.523 4.930 Cs-137 635 15.76 8.606 Ni-63 331 3969 847.8 Sr-90 3.4 13.43 1.840

Table 32 Ratio of Maximum Kd DCGL/Minimum Kd DCGL for Surface and

Subsurface Soil Radionuclide Surface Soil Ratio Subsurface Soil Ratio

Co-60 1.00 1.00 Cs-134 1.00 1.00 Cs-137 1.00 1.00 Ni-63 0.99 1.00 Sr-90 0.94 0.99

8. Clean Concrete Fill ZSRP will demonstrate that all concrete designated as backfill material in basements is clean by using the Unconditional Release Survey (URS) program at Zion presented in ZionSolutions procedure ZS-LT-400-001-001, “Unconditional Release of Materials, Equipment and Secondary Structures”. The URS ensures that no detectable plant-derived radioactive material is released from the site. MARSAME guidance is used in establishing survey intensities, and NRC has reviewed and audited the ZSRP unconditional release programs and found them to be acceptable. Materials unconditionally released from Zion, regardless of their point of origin on the site, have been verified to contain no detectable plant-derived radioactivity and are free to be used and relocated anywhere offsite without tracking, controls, or dose considerations.

The URS is performed in accordance with procedure ZS-LT-400-001-001 which requires ambient background to be determined for the area of the survey and a “critical level” based on the ambient background be derived for the instrument used. If a measurement result is greater than the critical level established for the instrument in the area specific to the material being surveyed, then an investigation is performed, typically using a portable gamma spectroscopy instrument (Inspector) but in some cases a volumetric sample is taken. If the investigation positively identifies plant-derived radioactivity, then the material may not be “unconditionally released”. In the case of concrete surveyed as candidate material for use as clean fill, the material would be disqualified for use as fill, segregated and disposed of as low level radioactive waste.

Although the concrete to be used as fill is clean and can be viewed as having a zero dose impact, a dose value will be assigned for the purpose of demonstrating compliance with 10 CFR 20.1402 in the same manner as other materials to remain at license termination that are surveyed and found to not contain detectable activity. The “detection limit” used for the dose calculation is conservatively


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assumed to be the 5,000 dpm/100 cm2 value in I&E Circular 81-07. Actual detection limits in the unconditional release program are lower than this value. Note that if the use of the 5,000 dpm/100 cm2 maximum non-detect limit is deemed to be too conservative, this dose calculation will be revised based on actual survey detection limits as opposed to the conservative 5,000 dpm/100 cm2 upper value.

The vast majority of clean concrete fill to be used will come from two buildings; Containment and Turbine. The source term for the dose assessment is calculated by determining the total surface area of the concrete to be used as backfill, assuming uniform surface contamination at 5,000 dpm/100 cm2 gamma, and dividing the resulting total activity by the volume of concrete fill. The source term is then produced with units of mCi/m3 for both Containment and Turbine. The resulting source terms were 8.57E-04 mCi/m3 and 4.29E-04 mCi/m3 for the Turbine Building and Containment, respectively. Consistent with the bounding and conservative approach used for this dose assessment, the maximum source term of 8.57E-04 mCi/m3 was applied to all concrete fill.

Because the source term was from both Containment and Turbine concrete the dose calculation was performed using both the Containment and Auxiliary ROC mixtures. The dose was essentially the same for both mixtures but the dose with the Containment mixture was slightly higher (with trivial exception of WWTF). Consistent with the bounding approach used for the clean concrete assessment the Containment mixture was applied to all concrete. In addition, when applying the ROC mixture, the 5,000 dpm/100 cm2 maximum detection limit was assumed to be 100% Cs-137. The remaining radionuclide concentrations were added to the Cs-137 concentration at their respective ratios to Cs-137. The dose values are calculated separately for each basement assuming that the entire basement void is filled with concrete only. This conservatively includes the top three feet of fill which will be soil for all basements and not concrete. The full spreadsheet calculation for clean concrete dose is provided in Attachment 15. The dose results for each basement are provided in Table 33. The dose values in Table 33 will be added to any basement where concrete fill is used regardless of the volume of concrete fill used. This is a conservative and bounding approach.

Table 33 Clean Concrete Fill Hypothetical Dose using Containment ROC Mixture

Radionuclide Auxiliary Containment

Spent Fuel Pool/ Transfer

Canals Turbine Crib House/

Forebay WWTF

mrem/yr mrem/yr mrem/yr mrem/yr mrem/yr mrem/yr

Co-60 2.54E-02 3.19E-02 2.74E-03 3.27E-02 5.73E-02 4.55E-02

Cs-134 6.18E-05 2.71E-04 2.33E-05 2.43E-04 2.50E-04 9.57E-04

Cs-137 9.60E-01 1.71E+00 1.47E-01 1.52E+00 1.49E+00 6.26E+00

Eu-152 1.11E-03 1.28E-03 1.10E-04 1.33E-03 2.40E-03 1.60E-03

Eu-154 1.64E-04 1.95E-04 1.67E-05 2.00E-04 3.49E-04 2.77E-04

H-3 2.19E-04 3.09E-04 2.65E-05 2.72E-04 2.48E-04 1.17E-03

Ni-63 3.58E-03 6.48E-03 5.57E-04 5.70E-03 5.23E-03 2.46E-02

Sr-90 4.30E-03 1.90E-02 1.63E-03 1.67E-02 1.53E-02 7.22E-02

Total 1.01E+00 1.78E+00 1.61E-01 1.62E+00 1.60E+00 6.57E+00


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9. DCGLs for Embedded Pipe DCGLs are required for each survey unit that undergoes FSS. As defined in MARSSIM, “the DCGL, based on pathway modeling, is the uniform residual radioactivity concentration level within a survey unit that corresponds to the release criterion”. The total internal surface areas of all Auxiliary Building Basement floor drains were combined to comprise a single survey unit. DCGLs were calculated for each radionuclide of concern (ROC) in units of pCi/m2.

Embedded piping is defined as piping that runs vertically in a concrete wall or horizontally in a concrete floor. The residual radioactivity in embedded piping to remain has no release pathway other than into the Basement(s) where the piping terminates. Each embedded pipe run is treated as a separate survey unit within the basement that the embedded pipe is located and the DCGL calculated accordingly.

The embedded pipe to remain in the End State is identified and quantified in ZionSolutions TSD 14-016, “Description of Embedded Piping, Penetrations and Buried Piping to Remain in Zion End State” (10). The embedded pipe survey units are listed in Table 34 along with the total internal survey area of the pipes in the survey unit. The IC-sump embedded pipe is very limited with a total surface area of 1.05 m2 each for unit 1 and unit 2. To provide a reasonable maximum value for the DCGL a nominal area of 100 m2 was assumed for the surface area of IC sump embedded pipe survey unit.

Table 34 Embedded Pipe Survey Unit Surface Areas

Embedded Pipe EP SU Surface Area

(m2)

Auxiliary Floor Drains 299.41

Turbine Floor Drains 302.43

U1 Containment IC-Sump Drain 1.05 (100) 1

U2 Containment IC-Sump Drain 1.05 (100) 1

U1 Steam Tunnel Floor Drain 46.882

U2 Steam Tunnel Floor Drain 46.882

U1 Tendon Tunnel Floor Drain 51.41

U2 Tendon Tunnel Floor Drain 51.41 Note1: The total surface area of U1 and U2 IC Sump Drains are 1.05 m2 each. To provide a reasonable maximum value for the DCGL a nominal area of 100 m2 was assumed for the DCGL calculation. Note 2: Higher surface area applied to both U1 and U2 Steam Tunnel Floor Drains. Lower area was in U2 with area of 46.39 m2.

DCGLs were calculated for each of the embedded pipe survey units using Equation 7.


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Equation 7

𝑫𝑪𝑮𝑳𝑬𝑷(𝒃, 𝒊) =𝟐𝟓

(𝑩𝑭𝑴 𝑫𝑭𝒈𝒘(𝒊) + 𝑩𝑭𝑴 𝑫𝑭𝒅𝒔(𝒊))∗

𝟏

𝑬𝑷 𝑺𝑼 𝑨𝒓𝒆𝒂∗ 𝟏𝑬𝟎𝟗 ∗ 𝑰𝑪 𝑫𝒐𝒔𝒆 𝑭𝒂𝒄𝒕𝒐𝒓

Where:

DCGLEP (b,i) = Embedded Pipe DCGL for radionuclide (i) in basement (b) (pCi/m2) BFM DFgw (i) = Basement Fill Model Groundwater Dose Factor for radionuclide (i) in

basement (b) (mrem/yr per mCi) BFM DFds (i) = Basement Fill Model Drilling Spoils Dose Factor for radionuclide (i)

in basement (b) (mrem/yr per mCi) 25 = 25 mrem/yr release criterion EP SU Area = Total internal surface area of all embedded pipe in the survey unit (m2) 1E+09 = conversion factor of 1E+09 pCi/mCi IC Dose Factor = Insignificant contributor dose adjustment factor equal to 0.90 for

Tendon Tunnel and IC-Sump embedded pipe and 0.95 for remaining embedded pipe (see LTP Rev 1, Chapter 6, section 6.5.2.3)

The calculation of embedded pipe DCGLs are provided in Excel spreadsheet file: “TSD 14-010 Revision 4.xls”. The spreadsheet inputs and calculation results are provided in Attachment 19. Note that the Tendon Tunnel Floor drains are included in both the Containment and Turbine Basement compliance demonstration (see LTP Rev 1, Chapter 5, Table 5-15). The embedded pipe DCGL was calculated for both basements (see Attachment 19). The DCGLs calculated using the Containment Basement Dose Factors in Equation 7 were lower than using the Turbine Basement Dose Factors and were therefore assigned as the Tendon Tunnel floor drain DCGLs. The DCGLEP values are provided in Table 35.

Table 35 Embedded Pipe DCGLEP (Adjusted for Insignificant Contributor Dose) Radionuclide Auxiliary

Floor Drain Turbine

Floor Drain IC-Sump

Drain U1 and U2

Steam Tunnel Floor Drain U1 and U2

Tendon Tunnel Floor Drains1

U1 and U2

(pCi/m2) (pCi/m2) (pCi/m2) (pCi/m2) (pCi/m2)

Co-60 7.33E+09 6.31E+09 5.47E+09 1.31E+10 1.06E+10

Cs-134 5.10E+09 1.43E+09 1.05E+09 2.96E+09 2.04E+09

Cs-137 2.68E+09 1.89E+09 1.37E+09 3.92E+09 2.67E+09

Ni-63 2.78E+11 1.96E+11 1.40E+11 4.06E+11 2.48E+10

Sr-90 2.41E+08 6.94E+07 4.98E+07 1.44E+08 2.16E+10

H-3 NA NA 8.28E+09 NA 1.61E+10

Eu-152 NA NA 1.28E+10 NA 2.72E+11

Eu-154 NA NA 1.11E+10 NA 9.70E+07


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10. Penetration DCGLs A penetration is defined as a pipe (or remaining pipe sleeve, if the pipe is removed, or concrete, if the pipe and pipe sleeve is removed) that runs through a concrete wall and/or floor, between two buildings, and is open at the wall or floor surface of each building. A penetration could also be a pipe that runs through a concrete wall and/or floor and opens to a building on one end and the outside ground on the other end.

A penetration survey unit is defined for each basement. The direction that the residual radioactivity may migrate, i.e., into which basement, cannot be predicted with certainty. Therefore, a given penetration that begins in one basement and ends in another will be included in the survey units for both basements. The residual radioactivity in the penetration is assumed to release to both basements simultaneously. The penetration DCGL (DCGLPN) is calculated in the same manner as embedded pipe using Equation 7 but replacing the embedded pipe survey unit surface area with the penetration survey unit surface area. The penetration survey units are defined in TSD 14-016 with each pipe in the survey unit listed. TSD 14-016 also calculates the total survey area of each penetration survey unit which are provided in Table 36.

Table 36 Penetration Survey Unit Surface Areas

Embedded Pipe

Penetration Survey Unit Surface Area

(m2) Auxiliary Basement 948.75

Containment Basement 242.36

Turbine Basement 1081.14

SFP/Transfer Canal 337.45

Crib House/Forebay 1.14

WWTF 0.89 An additional adjustment is required for the calculation of the DCGLPN for the Auxiliary Basement penetration survey unit. The release of residual radioactivity from the Auxiliary basement concrete assumes diffusion release. In most cases the remaining penetrations will be either the remaining pipe or steel pipe sleeve after a pipe is removed. Because the residual radioactivity is not contained at depth in concrete, the assumption of diffusion release through concrete is not applicable and instant release is conservatively assumed for the penetrations. As seen in Equation 7, the penetration DCGL calculation uses the BFM Dose Factors, which in the case of the Auxiliary basement is based on assumption of diffusion release. An adjustment is therefore required to account for the higher maximum release rate under an instant release assumption as compared to diffusion release. The correction factor was calculated in TSD 14-009, Revision 3, Attachment G, where the maximum concentration in the Auxiliary Basement under an instant release assumption was compared to the maximum concentration using a diffusion release assumption. The adjustment factor was calculated as the ratio of maximum instant release to maximum diffusion release. The results from TSD 14-009, Revision 3, Attachment G are reproduced in Table 37.


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Table 37 Ratio of Instant Release Maximum to Diffusion Release Maximum for Auxiliary Basement

Radionuclide Auxiliary Floor Drain

Co-60 26.23

Cs-134 4.91

Cs-137 1.37

Ni-63 14.96

Sr-90 19.1

H-3 1.01

Ni-63 1.29

Sr-90 3.15

The DCGLPN for the Auxiliary Basement penetration survey unit is then calculated using Equation 8 which is the same as Equation 7 with an additional term, i.e., “RatioID”, to account for instant release from Auxiliary Basement penetration survey unit to the Auxiliary basement.

Equation 8

𝑫𝑪𝑮𝑳𝑬𝑷(𝑨, 𝒊) =𝟐𝟓

(𝑩𝑭𝑴 𝑫𝑭𝒈𝒘(𝒊) + 𝑩𝑭𝑴 𝑫𝑭𝒅𝒔(𝒊)) ∗ 𝑹𝒂𝒕𝒊𝒐𝑰𝑫∗

𝟏

𝑷𝑵 𝑺𝑼 𝑨𝒓𝒆𝒂∗ 𝟏𝑬𝟎𝟗 ∗ 𝑰𝑪 𝑫𝒐𝒔𝒆 𝑭𝒂𝒄𝒕𝒐𝒓

Where:

DCGLEP (A,i) = Embedded Pipe DCGL for radionuclide (i) in Auxiliary basement (A) (pCi/m2)

BFM DFgw (i) = Basement Fill Model Groundwater Dose Factor for radionuclide (i) in Auxiliary basement (b) (mrem/yr per mCi)

BFM DFds (i) = Basement Fill Model Drilling Spoils Dose Factor for radionuclide (i) in Auxiliary basement (b) (mrem/yr per mCi)

RatioID = ratio of instant release maximum concentration to diffusion release concentration

25 = 25 mrem/yr release criterion PN SU Area = Total internal surface area of Auxiliary Basement penetration survey

unit (m2) 1E+09 = conversion factor of 1E+09 pCi/mCi IC Dose Factor = Insignificant contributor dose adjustment factor equal to 0.90 for

Containment and 0.95 for all other basements (see LTP Rev 1 Chapter 6 section 6.8.2)

The penetration DCGLPN are calculated in Excel spreadsheet file: “TSD 14-010 Revision 4.xls”. The spreadsheet inputs and calculation results are provided in Attachment 20. The DCGLPN values are provided in Table 38. Note that the DCGLPN for the Crib House/Forebay and WWTF is listed as not applicable due the very small surface area of the few penetrations present (1.14 m2 and 0.89 m2). The


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Crib House/Forebay and WWTF penetrations are set equal to the wall/floor surface DCGLs and included with the Crib House/Forebay and WWTF surface survey units.

Table 38 Adjusted Penetration DCGLPN (Adjusted for insignificant contributor dose)



Fuel

(pCi/m2) Turbine (pCi/m2)

Crib House/ Forebay1 (pCi/m2)

WWTF1

(pCi/m2) Co-60 8.82E+07 2.26E+09 4.45E+08 1.76E+09 NA NA Cs-134 3.28E+08 4.32E+08 7.48E+08 4.00E+08 NA NA Cs-137 6.17E+08 5.66E+08 1.46E+09 5.29E+08 NA NA Eu-152 3.29E+08 5.26E+09 9.44E+08 4.06E+09 NA NA Eu-154 2.33E+08 4.58E+09 8.53E+08 3.58E+09 NA NA H-3 3.99E+09 3.42E+09 4.84E+16 3.23E+09 NA NA Ni-63 6.79E+10 5.78E+10 1.86E+14 5.48E+10 NA NA Sr-90 2.41E+07 2.06E+07 9.26E+10 1.94E+07 NA NA

Note 1: The DCGLPN for the Crib House/Forebay and WWTF are listed a not applicable due the very small surface area of the very few penetrations present. These penetrations are included with the Crib House/Forebay and WWTF surface survey unit and the surface DCGLB will apply.

11. Action Levels for Remediation and Grouting of Penetrations Administrative action levels are set in LTP Chapter 5 for the decision to remediate and/or grout a penetration or embedded pipe. The remediation and grouting action levels ensure that the residual radioactivity in the penetration of embedded pipe will either not exceed the wall/floor surface DCGL or that the activity released from the embedded pipe to the floor surface, after grouting, will be well below that which could be released from a wall/floor surface at the DCGL concentration The lower action levels for embedded pipe is the wall/floor surface DCGLB (or SOF including all ROC) for the basement that contains the embedded pipe. The upper action level is the embedded pipe DCGL (SOF). The lower action levels for penetrations are the most limiting DCGLB (SOF) of the two basements where a penetration interfaces. The upper action level is the penetration DCGL (SOF). The lower action levels for penetrations are calculated in this section. As described in section 11, the penetrations DCGLs are adjusted to account for the different maximum concentration under instant and diffusion release assumptions. However, the calculation in section 11 applies to the DCGLPN for the Auxiliary penetration survey unit. To ensure that the lower action levels associated with the remediation and grouting of the Auxiliary Basement penetration survey unit satisfy the objective of either not exceeding the Auxiliary wall/floor surface DCGL, the lower action lower for the Auxiliary penetration must also be adjusted to account for the differences between instant and diffusion release. The most straightforward way to calculate the lower action level for the Auxiliary penetrations is to divide the Auxiliary wall/floor surface DCGLB values in Table 14 by the ratios in Table 37. This ensures that the release from 1 m2 of penetration surface area will be equivalent to the release from 1 m2 of a floor/wall surface at the DCGLB. The Auxiliary penetration lower action levels


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are calculated in Excel spreadsheet file: “TSD 14-010 Revision 4.xls”. The spreadsheet inputs and calculation results are provided in Attachment 20. The results are provided in Table 39.

Table 39 Lower Action Levels for Auxiliary Basement Penetration Survey Unit


Co-60 1.16E+07 Cs-134 4.30E+07 Cs-137 8.11E+07 Eu-152 4.32E+07 Eu-154 3.05E+07 H-3 5.24E+08 Ni-63 8.91E+09 Sr-90 3.17E+06

The full table of lower remediation and grouting action levels for all penetrations are provided in Table 40. The values for the Auxiliary penetrations in Table 40 are based on the values in Table 39. The last column of Table 40 includes the lowest action levels for either the Auxiliary, Containment, Turbine, SFP/Transfer Canal. These minimum values are included to provide flexibility during implementation of FSS for initial decision making if deemed useful. The majority of penetrations are expected to contain low levels of activity well below the minimum action levels.

Table 40 Penetration Remediation and Grouting Lower Action Levels

Nuclide Auxiliary to Containment

Auxiliary to SFP/Transfer

Canal

Auxiliary to Turbine

Containment to SFP/Transfer

Canal

SFP/Transfer Canal to Turbine

Minimum Aux, CTMT, SFP, Turbine

Co-60 1.16E+07 1.16E+07 1.16E+07 1.57E+08 7.43E+07 1.16E+07 Cs-134 3.01E+07 3.01E+07 1.57E+07 3.01E+07 1.68E+07 1.57E+07 Cs-137 3.94E+07 3.94E+07 2.07E+07 3.94E+07 2.23E+07 2.07E+07 Eu-152 4.32E+07 4.32E+07 4.32E+07 3.66E+08 1.71E+08 4.32E+07 Eu-154 3.05E+07 3.05E+07 3.05E+07 3.19E+08 1.51E+08 3.05E+07

H-3 2.38E+08 2.38E+08 1.27E+08 2.38E+08 1.36E+08 1.27E+08 Ni-63 4.02E+09 4.02E+09 2.15E+09 4.02E+09 2.31E+09 2.15E+09 Sr-90 1.43E+06 1.43E+06 7.61E+05 1.43E+06 8.18E+05 7.61E+05

12. Conclusion This TSD documents the RESRAD runs and spreadsheet calculations required to determine the BFM Dose Factors for Basement Concrete and DCGLs for Soil that are provided in LTP Chapter 6.

Nine RESRAD analyses are required to support the LTP:

1. Basement Fill Model (BFM) sensitivity analysis for ROC, 2. BFM Groundwater Exposure Factors for ROC, 3. Soil Derived Concentration Guideline Level (DCGL) sensitivity analysis for ROC,


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4. Soil DCGLs for ROC, 5. BFM RESRAD modeling to determine Groundwater Exposure Factors for the initial suite

of radionuclides in concrete, 6. Soil RESRAD modeling to determine AFs for the initial suite of radionuclides in concrete

to determine BFM Drilling Spoils Dose Factors, 7. Soil RESRAD modeling for the initial suite of radionuclides in soil, 8. Soil RESRAD modeling for industrial use scenario, and 9. Soil RESRAD Modeling for Kd uncertainty analysis

Seven spreadsheet calculations were required to determine the BFM Dose Factors, and BFM DCGLs reported in LTP Chapter 6. The methods for calculating the Dose Factors and DCGLs, the documentation of the supporting spreadsheet calculations, and the development of corresponding summary tables reported in LTP Chapter 6 are provided in this TSD. The spreadsheet calculations are listed below:

1. Calculation of DUST-MS Groundwater Concentration Factors 2. Calculation of BFM GW Exposure Factors 3. Calculation of BFM GW Dose Factors 4. Calculation of BFM DCGLs 5. Calculation of Basement Surface Drilling Spoils Area Factors 6. Calculation of “Clean Concrete” Dose 7. Calculation of DCGLs for the Initial Suite Radionuclides


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13. References 1. Zion Solutions TSD 14-021 “Zion End State Alternate Exposure Scenario Evaluation”.

December 2014.

2. TSD 14-019, "Radionuclides of Concern for Basement Fill Moidel Source Term and Surrogate Ratios". 2014.

3. U.S. Nuclear Regulatory Commission. NUREG-1757, Volume 2, Revision 1, "Consolidated Decommissioning Guidance: Characterization, Survey and Determination of Radiological Criteria". September 2006.

4. ZionSolutions. TSD 14-006 "Conestoga Rovers & Associates (CRA) Report, Evaluation of Hydrological Parameters in Support of Dose Modeling for the Zion Restoration Project". October 2014.

5. TSD 14-004 “Brookhaven National Laboratory (BNL) Report Recommended Values for the Distribution Coefficient (KD) to be used in Dose Assessments for Decommissioning the Zion Nuclear Stationt”. October 2014.

6. Argonne National Laboratory. NUREG/CR-6697 "Development of Probabilistic RESRAD 6.0 and RESRAD-BUILD 3.0 Computer Codes". December 2000.

7. ZionSolutions. TSD 14-009 "Brookhaven National Laboratory‘Evaluation of Maximum Radionuclide Groundwater Concentrations for Radionuclides of Concern, Zion Nuclear Power Station Decommissioning Project”. November 2014.

8. TSD 14-031, "Brookhaven National Laboratory Report: Basement Fill Model Evaluation of Maximum Radionuclide Concentrations for Initial Suite of Radionuclides" . December 2014.

9. TSD 14-011 "Soil Area Factors". 2014.

10. ZionSolutions TSD 14-016, “Description of Embedded Piping, Penetrations and Buried Piping to Remain in Zion End State” 2017.


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14. Attachments Attachment 1: RESRAD Input Parameters for BFM Uncertainty Analysis 14.1.

Attachment 2: RESRAD BFM Uncertainty Reports 14.2.

Attachment 3: RESRAD Input Parameters for BFM Groundwater Exposure Factors 14.3.

Attachment 4: RESRAD Summary Report and Concentration Report for BFM Groundwater 14.4.Exposure Factors

Attachment 5: Calculation of Groundwater Concentration Factors and Fill Concentration 14.5.Factors from DUST-MS Modeling Results

Attachment 6: Calculation of BFM Basement Dose Factors 14.6.

Attachment 7: RESRAD Input Parameters for Soil DCGL Uncertainty Analysis 14.7.

Attachment 8: RESRAD Uncertainty Reports for Soil DCGLs 14.8.

Attachment 9: RESRAD Input Parameters for ZSRP Surface Soil and Subsurface Soil DCGL 14.9.

Attachment 10: RESRAD Summary Reports for Soil DCGLs 14.10.

Attachment 11: RESRAD Input Parameters for BFM Analysis of Initial Suite of Radionuclides 14.11.

Attachment 12: RESRAD Summary Report and Concentration Report for BFM Analysis of 14.12.Initial Suite of Radionuclides

Attachment 13: RESRAD Summary Reports for Soil Area Factors to Support Calculation of 14.13.BFM Drilling Spoils Dose Factors for Initial Suite of Radionuclides

Attachment 14: RESRAD Summary Report for Soil Analysis of Initial Suite of Radionuclides 14.14.

Attachment 15: Clean Concrete Fill Dose Assessment at Detection Limit 14.15.

Attachment 16: Basement Surface DCGL Calculation 14.16.

Attachment 17: BFM Drilling Spoils Scenario Area Factor 14.17.

Attachment 18: Initial Suite Radionuclides DCGL Calculation 14.18.

Attachment 19: Embedded Pipe DCGL Calculation 14.19.

Attachment 20: Penetration DCGL Calculation 14.20.


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Figure 1 – RESRAD Parameter Selection Process

Input parameter value


Assign 25% quartile value if TEDE is negatively correlated

with the parameter


Assign 50% value distribution

Non-sensitive, |PRCC| ≤ 0.25 Sensitive, |PRCC| > 0.25

Classify parameter as “Sensitive” or “Non-sensitive”

Complete sensitivity analysis using RESRAD v7.0

Assign distribution from NUREG/CR-6697, Att C


Assign Median value from RESRAD v7.0

Priority 1 or 2 Priority 3

No

Classify as Priority 1, 2 or 3


Priority 1 or 2

Site data available?


Assign default value from NUREG/CR 5512

Vol. 3


Assign default value from NUREG/CR 5512

Vol. 3

Physical parameter Metabolic parameter Behavioral parameter

Classify as Behavioral, Metabolic, or Physical

Select model parameter

Assign 75% quartile value if TEDE is positively correlated

with the parameter

Yes

No


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ATTACHMENT 1

RESRAD Input Parameters for BFM Uncertainty Analysis

RESRAD Input Parameters BFM Uncertainty Analysis TSD 14-010 Revision 4

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Parameter (unit) Typea Priorityb Treatmentc Value/Distribution Basis Distribution's Statistical Parametersd

1 2 3 4 Mean/ Median

Soil Concentrations Basic radiation dose limit (mrem/y) 3 D 25 10 CFR 20.1402 NR NR NR NR Initial principal radionuclide (pCi/g) P 2 D 1 Unit Value NR NR NR NR

Distribution coefficients (contaminated, unsaturated, and saturated zones) (cm3/g) Co-60 P 1 D 223 TSD 14-004 (Reference 5) 5.46 2.53 0.001 0.999 235 Cs-134 P 1 D 45 TSD 14-004 6.1 2.33 0.001 0.999 446 Cs-137 P 1 D 45 TSD 14-004 6.1 2.33 0.001 0.999 446 Eu-152 P 1 D 95 TSD 14-004 6.72 3.22 0.001 0.999 825 Eu-154 P 1 D 95 TSD 14-004 6.72 3.22 0.001 0.999 825 Gd-152 (daughter for Eu-152) P 1 D 825 Median Value

NUREG/CR-6697, Att. C 6.72 3.22 0.001 0.999 825

H-3 P 1 D 0 TSD 14-004 -2.81 0.5 0.001 0.999 0.06 Nd-144 (daughter for Eu-152) P 1 D 158 RESRADv.7.0 Default

Neodymium (Nd) not listed in NUREG/CR-6697

NA NA NA NA NA

Ni-63 P 1 D 62 TSD 14-004 6.05 1.46 0.001 0.999 424 Sm-148 (daughter Eu-152) P 1 D 825 Median Value

NUREG/CR-6697, Att. C 6.72 3.22 0.001 0.999 825

Sr-90 P 1 D 2.3 TSD 14-004 3.45 2.12 0.001 0.999 32 Initial concentration of radionuclides present in groundwater (pCi/l)

P 3 D 0 No existing groundwater contamination

NR NR NR NR

Calculation Times

Time since placement of material (y) P 3 D 1 For user convenience: Allows use of t=0 in dose and concentration output reports to calculate unitized Exposure Factors

NR NR NR NR

Time for calculations (y) P 3 D 0, 1, 3, 10, 30, 100, 300, 1000

RESRAD Default NR NR NR NR

Contaminated Zone Area of contaminated zone (m2) P 2 D 64,500 Area of the ‘Security

Protected Area’ on Zion Site NR NR NR NR


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Thickness of contaminated zone (m) P 2 D

11.2

Contaminated Zone is the Basement fill depth where mixing occurs. Depth of fill mixing zone depends on Basement floor elevation. 11.2 m is used as nominal value based on difference between elevations of the water table (579’) and Auxiliary Basement floor (542’) which equals 11.2m. Note: this parameter has no effect on the calculated values for unitized Exposure Factors.

NR NR NR NR

Length parallel to aquifer flow (m) P 2 D 287

Diameter of 64,500 m2 contaminated area. Note: not applicable to Basement Fill Model because Mass Balance groundwater model used.

NR NR NR NR

Does the initial contamination penetrate the water table?

NA NA NA Yes 100% of the contamination assumed to be in the basement fill water mixing zone

NA NA NA NA

Contaminated fraction below water table

Pe 3e D 1 100% of the contamination assumed to be in the basement fill water mixing zone

NR NR NR NR

Cover and Contaminated Zone Hydrological Data Cover depth (m) P 2 D 3.6m Difference between ground

level elevation at 591’ (179.6m) and equilibrium water level in basements at 579’ (176m)

NR NR NR NR NA

Density of cover material P 2 D 1.8 Site-specific average native sand and disturbed sand from Reference 4, Table 5.5.

NR NR NR NR

Cover erosion rate P,B 2 D Continuous Logarithmic NUREG/CR-6697 Att. C 5E-08 0,0007 0,005 .2 0.0015


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Density of contaminated zone (g/cm3)

P 1 S Truncated Normal NUREG/CR-6697 Att. C Fill to be comprised of undetermined combination of clean concrete and native sand. NUREG/CR-6697 distribution used as placeholder – parameter has no effect on calculation of unitized Exposure Factors

1.52 0.23 0.001 0.999 1.52

Contaminated zone erosion rate (m/y)

P,B 2 S Continuous Logarithmic NUREG/CR-6697 Att. C 5E-08 0.0007 0,005 0.2 0.0015

Contaminated zone total porosity P 2 S Truncated Normal NUREG/CR-6697 Att. C Fill to be comprised of undetermined combination of clean concrete and native sand. NUREG/CR-6697 distribution used as placeholder – parameter has no effect on calculation of unitized Exposure Factors

0.425 0.0867 0.001 0.999 0.42

Contaminated zone field capacity P 3 D

0.066

Site-specific value from Reference 4, Table 5.4

NR NR NR NR

Contaminated zone hydraulic conductivity (m/y)

P 2 S Loguniform

Site-specific distribution from Reference 4, Table 5.9

786 17000 NA NA 3649

Contaminated zone b parameter P 2 S Bounded Lognormal - N NUREG/CR-6697, Att. C Fill to be comprised of undetermined combination of clean concrete and native sand. NUREG/CR-6697 distribution used as placeholder – parameter has no effect on calculation of unitized Exposure Factors

1.06 0.66 0.5 30 2.89

Humidity in air (g/m3) P 3 D 7.2 Median NUREG/CR-6697 Att. C

1.98 0.334 0.001 0.999 7.2

Evapotranspiration coefficient P 2 S

Uniform NUREG/CR-6697 Att. C 0.5 0.75 NR NR 0.625

Average annual wind speed (m/s) P 2 S

Bounded Lognormal n NUREG/CR-6697 Att. C 1.445 0.2419 1.4 13 4.2

Precipitation (m/y) P 2 D

0.83 Site-specific value from Reference 4, Table 5.12

NR NR NR NR


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Irrigation (m/y) B 3 D

0.19 NUREG-5512, Vol. 3, Table 6-18 (Illinois Average) Converted 0.52 L/m2/d to m/y.

NR NR NR NR

Irrigation mode B 3 D Overhead Overhead irrigation is common practice in U. S.

NR NR NR NR

Runoff coefficient P 2 S Uniform NUREG/CR-6697 Att. C 0.1 0.8 NR NR 0.45 Watershed area for nearby stream or pond (m2)

P 3 D 1.0E+06 RESRAD Default NR NR NR NR

Accuracy for water/soil computations

- 3 D 1.00E-03 RESRAD Default NR NR NR NR

Saturated Zone Hydrological Data Density of saturated zone (g/cm3) P 1 S Truncated Normal NUREG 6697 distribution

for site soil type - sand 1.51 0.16 0.001 0.999 1.51

Saturated zone total porosity P 1 S Truncated Normal NUREG 6697 distribution for site soil type - sand

0.43 0.06 0.001 0.999 0.43

Saturated zone effective porosity P 1 S Truncated Normal NUREG 6697 distribution for site soil type - sand

0.383 0.0610 0.001 0.999 0.383

Saturated zone field capacity P 3 D 0.066


NR NR NR NR

Saturated zone hydraulic conductivity (m/y)

P 1 S Loguniform

Site-specific distribution from REFERENCE 4 Table 5.9

786 17000 NA NA 3649

Saturated zone hydraulic gradient P 2 S Bounded Lognormal - N NUREG/CR-6697 Att. C -5.11 1.77 0.00007 0.5 0.006 Saturated zone b parameter P 2 D NA

saturated zone b not active because water table drop rate =0

NUREG/CR-6697 NR NR NR NR NR

Water table drop rate (m/y) P 3 D 0 Basement fill water assumed to supply well with no water table drop.

NR NR NR NR

Well pump intake depth (m below water table)

P 2 S Triangular NUREG/CR-6697 Att. C 6 10 30 10

Model: Non-dispersion (ND) or Mass-Balance (MB)

P 3 D MB MB model most applicable to assumption that well located in center of basement fill.

NR NR NR NR


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Well pumping rate (m3/y) B,P 2 D 2250 Calculated according to method described in NUREG/CR-6697, Att. C section 3.10 assuming 10,000m2 farming land area, Illinois average irrigation rate, and NUREG/CR-5512 Vol. 3 livestock water consumption rate.

NR NR NR NR NR

Unsaturated Zone Hydrological Data

Number of unsaturated zone strata P NA NA 0 No unsaturated zone in Basement Fill Model

NA NA NA NA

Unsat. zone thickness (m) P NA NA NA No unsaturated zone in Basement Fill Model

NA NA NA NA

Unsat. zone soil density (g/cm3) P NA NA NA No unsaturated zone in Basement Fill Model

NA NA NA NA

Unsat. zone total porosity P NA NA NA No unsaturated zone in Basement Fill Model

NA NA NA NA

Unsat. zone effective porosity P NA NA NA No unsaturated zone in Basement Fill Model

NA NA NA NA

Unsat. zone field capacity P NA NA NA No unsaturated zone in Basement Fill Model

NA NA NA NA

Unsat. zone hydraulic conductivity (m/y)

P NA NA NA No unsaturated zone in Basement Fill Model

NA NA NA NA

Unsat. zone soil-specific b parameter


NA NA NA NA

Occupancy

Inhalation rate (m3/y) M,B 3 D 8400 NUREG/CR-5512, Vol. 33 Table 6.29 (= 23m3/d x 365d)

NR NR NR NR

Mass loading for inhalation (g/m3) P,B 2 S Continuous Linear NUREG/CR-6697, Att. C See NUREG-6697 Table 4.6-1

See NUREG-6697 Table 4.6-1



2.35E-05

Exposure duration B 3 D 30 RESRAD User’s Manual (Parameter not used in dose calculation)

NR NR NR NR

Indoor dust filtration factor P,B 2 S Uniform NUREG/CR-6697, Att. C 0.15 0.95 0.55 Shielding factor, external gamma P 2 S Bounded Lognormal - N NUREG/CR-6697, Att. C -1.3 0.59 0.044 1 0.27


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Fraction of time spent indoors B 3 D 0.649 NUREG/CR-5512, Vol. 3 Table 6.87

NR NR NR NR

Fraction of time spent outdoors (on site)

B 3 D 0.124 NUREG/CR-5512, Vol. 3 Table 6.87 (outdoors + gardening)

NR NR NR NR

Shape factor flag, external gamma P 3 D Circular Circular contaminated zone assumed for modeling purposes

NR NR NR NR

Ingestion, Dietary Fruits, non-leafy vegetables, grain consumption (kg/y)

M,B 2 D 112 NUREG/CR-5512, Vol. 3 Table 6.87 (other vegetables + fruits + grain)

NR NR NR NR

Leafy vegetable consumption (kg/y) M,B 3 D 21.4 NUREG/CR-5512, Vol. 3 Table 6.87

NR NR NR NR

Milk consumption (L/y) M,B 2 D 233 NUREG/CR-5512, Vol. 3 Table 6.87

NR NR NR NR

Meat and poultry consumption (kg/y) M,B 3 D 65.1 NUREG/CR5512, Vol. 3 Table 6.87 (beef + poultry)

NR NR NR NR

Fish consumption (kg/y) M,B 3 D 20.6 NUREG/CR-5512, Vol. 3 Table 6.87 Note: Aquatic Pathway inactive in BFM

NR NR NR NR

Other seafood consumption (kg/y) M,B 3 D 0.9 RESRAD User’s Manual Table D.2 Note: Aquatic Pathway inactive in BFM

NR NR NR NR

Soil ingestion rate (g/y) M,B 2 D 18.3 NUREG/CR-5512, Vol. 3 Table 6.87

NR NR NR NR

Drinking water intake (L/y) M,B 2 D 478 NUREG/CR-5512, Vol. 3 Table 6.87

NR NR NR NR

Contamination fraction of drinking water

B,P 3 D 1 All water assumed contaminated

NR NR NR NR

Contamination fraction of household water (if used)

B,P 3 NA

Contamination fraction of livestock water


NR NR NR NR

Contamination fraction of irrigation water


NR NR NR NR

Contamination fraction of aquatic food

B,P 2 NA NA Assumption that pond is constructed that intercepts contaminated water not credible at Zion site

NR NR NR NR


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Contamination fraction of plant food B,P 3 D 1 100% of food consumption rate from onsite source

NR NR NR NR

Contamination fraction of meat B,P 3 D 1 100% of food consumption rate from onsite source

NR NR NR NR

Contamination fraction of milk B,P 3 D 1 100% of food consumption rate from onsite source

NR NR NR NR

Ingestion, Non-Dietary Livestock fodder intake for meat (kg/day)

M 3 D 28.3 NUREG/CR5512, Vol. 3 Table 6.87 (forage, grain and hay for beef cattle + poultry + layer hen)

NR NR NR NR

Livestock fodder intake for milk (kg/day)

M 3 D 65.2 NUREG/CR5512, Vol. 3 Table 6.87 (forage + grain + hay)

NR NR NR NR

Livestock water intake for meat (L/day)

M 3 D 50.6 NUREG/CR5512, Vol. 3 Table 6.87 (beef cattle + poultry + layer hen)

NR NR NR NR

Livestock water intake for milk (L/day)

M 3 D 60 NUREG/CR5512, Vol. 3 Table 6.87

NR NR NR NR

Livestock soil intake (kg/day) M 3 D 0.5 RESRAD User’s Manual, Appendix L

NR NR NR NR

Mass loading for foliar deposition (g/m3)

P 3 D 4.00E-04 NUREG/CR-5512, Vol. 3 Table 6.87, gardening

NR NR NR NR

Depth of soil mixing layer (m) P 2 S Triangular NUREG/CR-6697, Att. C 0 0.15 0.6 0.23

Depth of roots (m) P 1 S Uniform NUREG/CR-6697, Att. C 0.3 4.0

2.15

Drinking water fraction from ground water

B,P 3 D 1 All water assumed to be supplied from groundwater

NR NR NR NR

Household water fraction from ground water (if used)

B,P 3 NA Not used

Livestock water fraction from ground water


NR NR NR NR

Irrigation fraction from ground water B,P 3 D 1 All water assumed to be supplied from groundwater

NR NR NR NR

Wet weight crop yield for Non-Leafy (kg/m2)

P 2 S Truncated Lognormal - N NUREG/CR-6697, Att. C 0.56 0.48 0.001 0.999 1.75

Wet weight crop yield for Leafy (kg/m2)

P 3 D 2.89 NUREG/CR-5512, Vol. 3 Table 6.87

NR NR NR NR

Wet weight crop yield for Fodder (kg/m2)


NR NR NR NR

Growing Season for Non-Leafy (y) P 3 D 0.25 NUREG/CR-5512, Vol. 3 Table 6.87

NR NR NR NR


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Growing Season for Leafy (y) P 3 D 0.12 NUREG/CR-5512, Vol. 3 Table 6.87

NR NR NR NR

Growing Season for Fodder (y) P 3 D 0.082 NUREG/CR-5512, Vol. 3 Table 6.87

NR NR NR NR

Translocation Factor for Non-Leafy P 3 D 0.1 NUREG/CR-5512, Vol. 3 Table 6.87

NR NR NR NR

Translocation Factor for Leafy P 3 D 1 NUREG/CR-5512, Vol. 3 Table 6.87

NR NR NR NR

Translocation Factor for Fodder P 3 D 1 NUREG/CR-5512, Vol. 3 Table 6.87

NR NR NR NR

Weathering Removal Constant for Vegetation (1/y)

P 2 S Triangular NUREG/CR-6697, Att. C 5.1 18 84 33

Wet Foliar Interception Fraction for Non-Leafy


NR NR NR NR

Wet Foliar Interception Fraction for Leafy

P 2 S Triangular NUREG/CR-6697, Att. C 0.06 0.67 0.95 0.58

Wet Foliar Interception Fraction for Fodder


NR NR NR NR

Dry Foliar Interception Fraction for Non-Leafy


NR NR NR NR

Dry Foliar Interception Fraction for Leafy


NR NR NR NR

Dry Foliar Interception Fraction for Fodder


NR NR NR NR

Storage times of contaminated foodstuffs (days): Fruits, non-leafy vegetables, and grain

B 3 D 14 NUREG/CR-5512, Vol. 3 Table 6.87

NR NR NR NR

Leafy vegetables B 3 D 1 NUREG/CR-5512, Vol. 3 Table 6.87

NR NR NR NR

Milk B 3 D 1 NUREG/CR-5512, Vol. 3 Table 6.87

NR NR NR NR

Meat and poultry B 3 D 1 NUREG/CR-5512, Vol. 3 Table 6.87 (holdup period for beef = 20d and poultry =1 day. Lowest value used)

NR NR NR NR

Fish B 3 D 7 RESRAD User’s Manual Table D.6 Note: Aquatic pathway inactive in BFM

NR NR NR NR

Crustacea and mollusks B 3 D 7 RESRAD User’s Manual Table D.6 Note: Aquatic pathway inactive in BFM

NR NR NR NR


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Well water B 3 D 1 RESRAD User’s Manual Table D.6

NR NR NR NR

Surface water B 3 D 1 RESRAD User’s Manual Table D.6

NR NR NR NR

Livestock fodder B 3 D 45 RESRAD User’s Manual Table D.6

NR NR NR NR

Special Radionuclides (C-14) C-12 concentration in water (g/cm3) P 3 NA NA NA NR NR NR NR C-12 concentration in contaminated soil (g/g)

P 3 NA NA NA NR NR NR NR

Fraction of vegetation carbon from soil


Fraction of vegetation carbon from air


C-14 evasion layer thickness in soil (m)


C-14 evasion flux rate from soil (1/sec)




Fraction of grain in beef cattle feed B 3 NA NA NA NR NR NR NR Fraction of grain in milk cow feed B 3 NA NA NA

NR NR NR NR

Dose Conversion Factors (Inhalation mrem/pCi) Co-60 M 3 D 2.19E-04

FGR11 NR NR NR NR

Cs-134 M 3 D 4.62E-05

FGR11 NR NR NR NR

Cs-137 M 3 D 3.19E-05

FGR11 NR NR NR NR

Eu-152 M 3 D 2.21E-04

FGR11 NR NR NR NR

Eu-154 M 3 D 2.86E-04

FGR11 NR NR NR NR

Gd-152

M 3 D 2.43E-01

FGR11 NR NR NR NR

H-3 M 3 D 6.40E-08

FGR11 NR NR NR NR

Ni-63 M 3 D 6.29E-06

FGR11 NR NR NR NR

Nd-144f

M 3 D 7.04E-02 ICRP60 NR NR NR NR


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Sm-148e


Sr-90 M 3 D 1.30E-03

FGR11 NR NR NR NR

Dose Conversion Factors (Ingestion mrem/pCi) Co-60 M 3 D 2.69E-05

FGR11 NR NR NR NR

Cs-134 M 3 D 7.33E-05

FGR11 NR NR NR NR

Cs-137 M 3 D 5.00E-05

FGR11 NR NR NR NR

Eu-152 M 3 D 6.48E-06

FGR11 NR NR NR NR

Eu-154 M 3 D 9.55E-06

FGR11 NR NR NR NR

Gd-152 M 3 D 1.61E-04 FGR11 NR NR NR NR H-3 M 3 D 6.40E-08

FGR11 NR NR NR NR

Ni-63 M 3 D 5.77E-07

FGR11 NR NR NR NR

Nd-144f


Sm-148f


Sr-90 M 3 D 1.42E-04

FGR11 NR NR NR NR

Plant Transfer Factors (pCi/g plant)/(pCi/g soil) Co-60 P 1 S Lognormal - N NUREG/CR-6697, Att. C -2.53 0.9 7.9E-02

Cs-134 P 1 S Lognormal - N NUREG/CR-6697, Att. C -3.22 1.0 4.0E-02


Eu-152 P 1 S Lognormal - N NUREG/CR-6697, Att. C -6.21 1.1 2.0E-03


Gd-152 P 1 S Lognormal - N NUREG/CR-6697, Att. C -6.21 1.1 2.0E-03

H-3 P 1 S Lognormal - N NUREG/CR-6697, Att. C 1.57 1.1 4.8E+00

Nd-144

P 1 S Lognormal - N NUREG/CR-6697, Att. C -6.21 1.1 2.0E-03


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Ni-63 P 1 S Lognormal - N NUREG/CR-6697, Att. C -3.00 0.9 5.0E-02

Sm-148


Sr-90 P 1 S Lognormal - N NUREG/CR-6697, Att. C -1.20 1.0 3.0E-01

Co-60 P 2 S Lognormal - N NUREG/CR-6697, Att. C -3.51 1.0 3.0E-02






H-3 P 2 S Lognormal - N NUREG/CR-6697, Att. C -4.42 1.0 1.2E-02

Nd-144 P 2 S Lognormal - N NUREG/CR-6697, Att. C -6.21 1.0 2.0E-03


Sm-148 P 2 S Lognormal - N NUREG/CR-6697, Att. C -6.21 1.1 2.0E-03

Sr-90 P 2 S Lognormal-N

NUREG/CR-6697, Att. C -4.61 0.4 1.0E-02

Co-60 P 2 S Lognormal - N NUREG/CR-6697, Att. C -6.21 0.7 2.0E-03







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H-3 P 2 S Lognormal - N NUREG/CR-6697, Att. C -4.6 0.9 1.0E-02

Nd-144 P 2 S Lognormal - N NUREG/CR-6697, Att. C -9.72 0.9 6.0E-05



Sm-148 P 2 S Lognormal-N

NUREG/CR-6697, Att. C -9.72 0.9 6.0E-05

Bioaccumulation Factors for Fish ((pCi/kg)/(pCi/L)) Co-60

P 2 NA Inactive NUREG/CR-6697, Att. C 5.7 1.1 3.0E+02

Cs-134 P 2 NA Inactive NUREG/CR-6697, Att. C 7.6 0.7 2.0E+03


Eu-152 P 2 NA Inactive NUREG/CR-6697, Att. C 3.9 1.1 4.9E+01


Gd-152 P 2 NA Inactive NUREG/CR-6697, Att. C 3.2 1.1 2.5E+01

H-3 P 2 NA Inactive NUREG/CR-6697, Att. C 0 0.1 1.0E+00

Nd-144

P 2 NA Inactive NUREG/CR-6697, Att. C 4.6 1.1 9.9E-01

Ni-63 P 2 NA Inactive NUREG/CR-6697, Att. C 4.6 1.1 9.9E+01

Sm-148 P 2 NA Inactive NUREG/CR-6697, Att. C 3.2 1.1 2.5E+01

Sr-90 P 2 NA Inactive NUREG/CR-6697, Att. C 4.1 1.1 6.0E+01

Bioaccumulation Factors for Crustacea/ Mollusks ((pCi/kg)/(pCi/L)) Co-60 P 3 NA Inactive RESRAD User’s Manual

Appendix D NR NR NR NR

Cs-134 P 3 NA Inactive RESRAD User’s Manual Appendix D

NR NR NR NR


NR NR NR NR

Eu-152 P 3 NA Inactive RESRAD User’s Manual Appendix D

NR NR NR NR


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NR NR NR NR

Gd-152 P 3 NA Inactive RESRAD User’s Manual Appendix D

NR NR NR NR

H-3 P 3 NA Inactive RESRAD User’s Manual Appendix D

NR NR NR NR

Nd-144

P 3 NA Inactive RESRAD User’s Manual Appendix D

NR NR NR NR

Ni-63 P 3 NA Inactive RESRAD User’s Manual Appendix D

NR NR NR NR

Sm-148


NR NR NR NR

Sr-90 P 3 NA Inactive RESRAD User’s Manual Appendix D

NR NR NR NR

Graphics Parameters Number of points 32 RESRAD Default NR NR NR NR Spacing log RESRAD Default NR NR NR NR Time integration parameters Maximum number of points for dose 17 RESRAD Default NR NR NR NR

Notes: a P = physical, B = behavioral, M = metabolic; (see NUREG/CR-6697, Attachment B, Table 4.) b 1 = high-priority parameter, 2 = medium-priority parameter, 3 = low-priority parameter (see NUREG/CR-6697, Attachment B, Table 4.1) c D = deterministic, S = stochastic d Distributions Statistical Parameters: Lognormal-n: 1= mean, 2 = standard deviation Bounded lognormal-n: 1= mean, 2 = standard deviation, 3 = minimum, 4 = maximum Truncated lognormal-n: 1= mean, 2 = standard deviation, 3 = lower quantile, 4 = upper quantile Bounded normal: 1 = mean, 2 = standard deviation, 3 = minimum, 4 = maximum Beta: 1 = minimum, 2 = maximum, 3 = P-value, 4 = Q-value Triangular: 1 = minimum, 2 = mode, 3 = maximum Uniform: 1 = minimum, 2 = maximum e Sm-148 not listed in RESRAD FGR 11 DCF file


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ATTACHMENT 2

RESRAD BFM Uncertainty Reports

See TSD 14-010 Attachment 2 (16 files)


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ATTACHMENT 3

RESRAD Input Parameters for BFM Groundwater Exposure Factors

RESRAD Input Parameters for BFM Groundwater Exposure Factors TSD 14-010 Revision 4

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Parameter (unit) Typea Priorityb Treatmentc Value Basis Distribution's Statistical Parametersd


Soil Concentrations Basic radiation dose limit (mrem/y) NA 3 D 25 10 CFR 20.1402 NR NR NR NR Initial principal radionuclide (pCi/g) P 2 D 1 Unit Value NR NR NR NR

Distribution coefficients (contaminated, unsaturated, and saturated zones) (cm3/g) Co-60 P 1 D 223 TSD 14-004 (Reference 5) 5.46 2.53 0.001 0.999 235 Cs-134 P 1 D 45 TSD 14-004 6.1 2.33 0.001 0.999 446 Cs-137 P 1 D 45 TSD 14-004 6.1 2.33 0.001 0.999 446

Eu-152 P 1 D 95 TSD 14-004 6.72 3.22 0.001 0.999 825 Eu-154 P 1 D 95 TSD 14-004 6.72 3.22 0.001 0.999 825 Gd-152 (daughter for Eu-152) P 1 D 825 Median Value

NUREG/CR-6697, Att. C 6.72 3.22 0.001 0.999 825

H-3 P 1 D 0 TSD 14-004 -2.81 0.5 0.001 0.999 0.06 Nd-144 (daughter for Eu-152) P 1 D 158 RESRADv.7.0 Default

Nd not listed in NUREG/CR-6697

NA NA NA NA NA

Ni-63 P 1 D 62 TSD 14-004 6.05 1.46 0.001 0.999 424 Sm-148 (daughter Eu-152) P 1 D 825 Median Value

NUREG/CR-6697, Att. C 6.72 3.22 0.001 0.999 825

Sr-90 P 1 D 2.3 TSD 14-004 3.45 2.12 0.001 0.999 32 Initial concentration of radionuclides present in groundwater (pCi/l)


NR NR NR NR

Calculation Times Time since placement of material (y) P 3 D 1 For user convenience:

Allows use of t=0 in dose and concentration output reports to calculate unitized Exposure Factors

NR NR NR NR



Contaminated Zone Area of contaminated zone (m2) P 2 D 64,500 Area of the ‘Radiological



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11.2

Contaminated Zone is the Basement fill depth where mixing occurs. Depth of fill mixing zone depends on Basement floor elevation. 11.3 m is used as nominal value based on difference between elevations of the water table (579’) and Auxiliary Basement floor (542’) which equals 11.2m. Note: this parameter has no effect on the calculated values for unitized Exposure Factors.

NR NR NR NR



NR NR NR NR



NA NA NA NA



NR NR NR NR


level elevation at 591’ (179.6m) and equilibrium water level in basements at 579’ (176m)7

NR NR NR NR NA

Density of cover (g/cm3) P 1 D 1.8 Site-specific average native sand and disturbed sand from REFERENCE 4 Table 5.5.

1.52 0.23 0.001 0.999 1.52

Cover erosion rate (m/y) P,B 2 D 0.0015 Median NUREG/CR-6697 Att. C

5E-08 0.0007 0,005 0.2 0.0015


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P 1 D 1.8 Density identified as sensitive and positively correlated. The 75th Percentile of the NUREG/CR-6697 Att. C distribution is 1.67 g/cm3. However, the site-specific value for sand density is 1.8 g/cm3. Fill to be comprised of undetermined combination of clean concrete and native sand therefore higher value for site-specific sand used.

1.52 0.23 0.001 0.999 1.52


P,B 2 D 0.0015 Median NUREG/CR-6697 Att. C

5E-08 0.0007 0,005 0.2 0.0015

Contaminated zone total porosity P 2 D 0.37 25th Percentile NUREG/CR-6697 Att. C.

0.425 0.0867 0.001 0.999 0.42


0.066

Site-specific value from Reference 4 Table 5.4

NR NR NR NR


P 2 D 2880 Site-specific value from Reference 4, Table 5.9

786 17000 NA NA 3649

Contaminated zone b parameter P 2 D 2.89

Median NUREG/CR-6697, Att. C

1.06 0.66 0.5 30 2.89


1.98 0.334 0.001 0.999 7.2

Evapotranspiration coefficient P 2 D

0.625 Median NUREG/CR-6697 Att. C

0.5 0.75 NR NR 0.625

Average annual wind speed (m/s) P 2 D


1.445 0.2419 1.4 13 4.2



NR NR NR NR


0.19 NUREG-5512, Vol. 3, Table 6-18 (Illinois Average). Converted 0.52 L/m2/d to m/y.

NR NR NR NR


NR NR NR NR

Runoff coefficient P 2 D 0.2 Site-specific value from Reference 4, Section 5.10

0.1 0.8 NR NR 0.45

Watershed area for nearby stream or pond (m2)





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Saturated Zone Hydrological Data

Density of saturated zone (g/cm3) P 1 D 1.8 Site-specific average native sand and disturbed sand from Reference 4, Table 5.5.

1.51 0.16 0.001 0.999 1.51

Saturated zone total porosity P 1 D 0.35 Site-specific average native sand and disturbed sand from Reference 4, Table 5.6

0.43 0.06 0.001 0.999 0.43

Saturated zone effective porosity P 1 D 0.29 Site-specific average native sand and disturbed sand from Reference 4 Table 5.7

0.383 0.0610 0.001 0.999 0.383



NR NR NR NR


P 1 D 1695 25th percentile Site-specific distribution from Reference 4, Table 5.9.

786 17000 NA NA 3649

Saturated zone hydraulic gradient P 2 D 0.0018 25th Percentile NUREG/CR-6697 Att. C distribution Site-specific average native sand and disturbed sand from Reference 4, Table 5.10 is greater at 0.0039 but lower value used

-0.511 1.77 0.00007 0.5 0.006

Saturated zone b parameter P 2 D NA saturated zone b not active in RESRAD because water table drop rate =0

RESRAD User Manual NR NR NR NR NR

Water table drop rate (m/y) P 3 D 0 Basement fill water assumed to fully supply well.

NR NR NR NR


P 2 D 5.6 Basement depths vary. 5.2m selected as nominal value based on mid-point of 11.2m contaminated zone for Auxiliary Basement. Note: this parameter has no effect on the calculated values for unitized Exposure Factors.

6 10 30 NA 10


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NR NR NR NR

Well pumping rate (m3/y) B,P 2 D 2250 Calculated according to method described in NUREG/CR-6697, Att. C Section 3.10 assuming 10,000m2 land area, Illinois specific irrigation rate and NUREG/CR-5512 vol. 3 livestock water consumption rate

NR NR NR NR NR



NA NA NA NA


NA NA NA NA


NA NA NA NA


NA NA NA NA


NA NA NA NA


NA NA NA NA



NA NA NA NA



NA NA NA NA

Occupancy

Inhalation rate (m3/y) M,B 3 D 8400 NUREG/CR-5512, Vol. 33 Table 6.29 (= 23 m3/d x 365 d/y)

NR NR NR NR

Mass loading for inhalation (g/m3) P,B 2 D 2.35E-05 Median NUREG/CR-6697, Att. C





2.35E-05


NR NR NR NR


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Indoor dust filtration factor P,B 2 D 0.55 Median NUREG/CR-6697, Att. C

0.15 0.95 0.55

Shielding factor, external gamma P 2 D 0.27 Median NUREG/CR-6697, Att. C

-1.3 0.59 0.044 1 0.27


NR NR NR NR



NR NR NR NR


NR NR NR NR



NR NR NR NR


NR NR NR NR


NR NR NR NR


NR NR NR NR


NR NR NR NR


NR NR NR NR


NR NR NR NR


NR NR NR NR



NR NR NR NR


B,P 3 NA



NR NR NR NR



NR NR NR NR


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B,P 2 D NA Assumption that pond is constructed that intercepts contaminated water not credible at Zion site

NR NR NR NR


NR NR NR NR


NR NR NR NR


NR NR NR NR



NR NR NR NR



NR NR NR NR



NR NR NR NR



NR NR NR NR


NR NR NR NR



NR NR NR NR

Depth of soil mixing layer (m) P 2 D 0.23 Median NUREG/CR-6697, Att. C

0 0.15 0.6 0.23

Depth of roots (m) P 1 D 3.1 75th Percentile NUREG/CR-6697, Att. C

0.3 4.0

2.15



NR NR NR NR


B,P 3 NA



NR NR NR NR


NR NR NR NR


P 2 D 1.26 25th Percentile NUREG/CR-6697, Att. C

0.56 0.48 0.001 0.999 1.75



NR NR NR NR


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P 3 D 1.91 NUREG/CR-5512, Vol. 3 Table 6.87 (maximum of forage, grain and hay)

NR NR NR NR


NR NR NR NR


NR NR NR NR


NR NR NR NR


NR NR NR NR


NR NR NR NR


NR NR NR NR



5.1 18 84 33



NR NR NR NR



0.06 0.67 0.95 0.58



NR NR NR NR



NR NR NR NR



NR NR NR NR



NR NR NR NR



NR NR NR NR


NR NR NR NR


NR NR NR NR


NR NR NR NR


NR NR NR NR


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NR NR NR NR


NR NR NR NR


NR NR NR NR


NR NR NR NR

Special Radionuclides (C-14) C-12 concentration in water (g/cm3) P 3 D NA NA NR NR NR NR C-12 concentration in contaminated soil (g/g)

P 3 D NA NA NR NR NR NR











Fraction of grain in beef cattle feed B 3 D NA NA NR NR NR NR Fraction of grain in milk cow feed B 3 D NA NA

NR NR NR NR


FGR11 NR NR NR NR

Cs-134 M 3 D 4.62E-05

FGR11 NR NR NR NR

Cs-137 M 3 D 3.19E-05

FGR11 NR NR NR NR

Eu-152 M 3 D 2.21E-04

FGR11 NR NR NR NR

Eu-154 M 3 D 2.86E-04

FGR11 NR NR NR NR

Gd-152

M 3 D 2.43E-01

FGR11 NR NR NR NR

H-3 M 3 D 6.40E-08

FGR11 NR NR NR NR


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Nd-144e


Ni-63 M 3 D 6.29E-06

FGR11 NR NR NR NR

Sm-148e


Sr-90 M 3 D 1.30E-03

FGR11 NR NR NR NR


FGR11 NR NR NR NR

Cs-134 M 3 D 7.33E-05

FGR11 NR NR NR NR

Cs-137 M 3 D 5.00E-05

FGR11 NR NR NR NR

Eu-152 M 3 D 6.48E-06

FGR11 NR NR NR NR

Eu-154 M 3 D 9.55E-06

FGR11 NR NR NR NR

Gd-152 M 3 D 1.61E-04 FGR11 NR NR NR NR

H-3 M 3 D 6.40E-08

FGR11 NR NR NR NR

Nd-144e


Ni-63 M 3 D 5.77E-07

FGR11 NR NR NR NR

Sm-148e


Sr-90 M 3 D 1.42E-04

FGR11 NR NR NR NR

Plant Transfer Factors (pCi/g plant)/(pCi/g soil) Co-60 P 1 D 7.9E-02 Median

NUREG/CR-6697, Att. C -2.53 0.9 7.9E-02

Cs-134 P 1 D 4.0E-02 Median NUREG/CR-6697, Att. C

-3.22 1.0 4.0E-02

Cs-137 P 1 D 4.0E-02 Median NUREG/CR-6697, Att. C

-3.22 1.0 4.0E-02

Eu-152 P 1 D 2.0E-03 Median NUREG/CR-6697, Att. C

-6.21 1.1 2.0E-03


-6.21 1.1 2.0E-03

Gd-152 P 1 D 2.0E-03 Median NUREG/CR-6697, Att. C

-6.21 1.1 2.0E-03


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H-3 P 1 D 4.8E+00 Median NUREG/CR-6697, Att. C

1.57 1.1 4.8E+00

Nd-144 P 1 D 2.0E-03 Median NUREG/CR-6697, Att. C

-6.21 1.1 2.0E-03

Ni-63 P 1 D 5.0E-02 Median NUREG/CR-6697, Att. C

-3.00 0.9 5.0E-02

Sm-148 P 1 D 2.0E-03 Median NUREG/CR-6697, Att. C

-6.21 1.1 2.0E-03

Sr-90 P 1 D 5.9E-01 75th Percentile NUREG/CR-6697, Att. C

-1.20 1.0 3.0E-01

Meat Transfer Factors (pCi/kg)/(pCi/d) Co-60 P 2 D 0.058 75th Percentile

NUREG/CR-6697, Att. C -3.51 1.0 3.0E-02

Cs-134 P 2 D 0.065 75th Percentile NUREG/CR-6697, Att. C

-3.00 0.4 5.0E-02

Cs-137 P 2 D 0.065 75th Percentile NUREG/CR-6697, Att. C

-3.00 0.4 5.0E-02

Eu-152 P 2 D 0.004 75th Percentile NUREG/CR-6697, Att. C

-6.21 1.0 2.0E-03

Eu-154 P 2 D 0.004 75th Percentile NUREG/CR-6697, Att. C

-6.21 1.0 2.0E-03


-6.21 1.0 2.0E-03

H-3 P 2 D 0.012 Median NUREG/CR-6697, Att. C

-4.42 1.0 0.012


-6.21 1.0 2.0E-03

Ni-63 P 2 D 0.0092 75th Percentile NUREG/CR-6697, Att. C

-5.30 0.9 5.0E-03


-6.21 1.1 2.0E-03

Sr-90 P 2 D 0.013

75th Percentile NUREG/CR-6697, Att. C

-4.61 0.4 1.0E-02

Milk Transfer Factors (pCi/L)/(pCi/d) Co-60 P 2 D 0.0032


-6.21 0.7 2.0E-03

Cs-134 P 2 D 1.4E-02 75th Percentile NUREG/CR-6697, Att. C

-4.61 0.5 1.0E-02


-4.61 0.5 1.0E-02


-9.72 0.9 6.0E-05


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-9.72 0.9 6.0E-05


-9.72 0.9 6.0E-05

H-3 P 2 D 0.010 Median NUREG/CR-6697, Att. C

-4.6 0.9 1.0E-02


-9.72 0.9 6.0E-05

Ni-63 P 2 D 0.032


-3.91 0.7 2.0E-02


-9.72 0.9 6.0E-05

Sr-90 P 2 D 0.0028 75th Percentile NUREG/CR-6697, Att. C

-6.21 0.5 2.0E-03

Bioaccumulation Factors for Fish ((pCi/kg)/(pCi/L)) Co-60 P 2 NA Inactive NUREG/CR-6697, Att. C 5.7 1.1 3.0E+02 Cs-134 P 2 NA Inactive NUREG/CR-6697, Att. C 7.6 0.7 2.0E+03




Gd-152 P 2 NA Inactive NUREG/CR-6697, Att. C 3.2 1.1 2.5E+01

H-3 P 2 NA Inactive NUREG/CR-6697, Att. C 0 0.1 1.0E+00

Nd-144

P 2 NA Inactive NUREG/CR-6697, Att. C 4.6 1.1 9.9E-01

Ni-63 P 2 NA Inactive NUREG/CR-6697, Att. C 4.6 1.1 1.0E+02

Sm-148 P 2 NA Inactive NUREG/CR-6697, Att. C 3.2 1.1 2.5E+01

Sr-90 P 2 NA Inactive NUREG/CR-6697, Att. C 4.1 1.1 6.0E+01




NR NR NR NR


NR NR NR NR


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NR NR NR NR


NR NR NR NR

Gd-152 P 3 NA Inactive RESRAD User’s Manual Appendix D

NR NR NR NR

H-3 P 3 NA Inactive RESRAD User’s Manual Appendix D

NR NR NR NR

Nd-144


NR NR NR NR


NR NR NR NR

Sm-148


NR NR NR NR


NR NR NR NR


Notes: a P = physical, B = behavioral, M = metabolic; (see NUREG/CR-6697, Attachment B, Table 4.) b 1 = high-priority parameter, 2 = medium-priority parameter, 3 = low-priority parameter (see NUREG/CR-6697, Attachment B, Table 4.1) c D = deterministic, S = stochastic d Distributions Statistical Parameters: Lognormal-n: 1= mean, 2 = standard deviation Bounded lognormal-n: 1= mean, 2 = standard deviation, 3 = minimum, 4 = maximum Truncated lognormal-n: 1= mean, 2 = standard deviation, 3 = lower quantile, 4 = upper quantile Bounded normal: 1 = mean, 2 = standard deviation, 3 = minimum, 4 = maximum Beta: 1 = minimum, 2 = maximum, 3 = P-value, 4 = Q-value Triangular: 1 = minimum, 2 = mode, 3 = maximum Uniform: 1 = minimum, 2 = maximum e Sm-148 and ND-144 not listed in RESRAD FGR 11 DCF file


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ATTACHMENT 4

RESRAD Summary Report and Concentration Report for BFM Groundwater Exposure Factors



of 165

ATTACHMENT 5

Calculation of Groundwater Concentration Factors and Fill Concentration Factors

from DUST-MS Modeling Results


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ZionSolutions Excel Spreadsheet “Calculations in Support of TSD 14-010 Revision 2.xls” CALCULATION OF GROUNDWATER AND FILL CONCENTRATION FACTORS FROM DUST-MS RESULTS

Reference: ZionSolutions Technical Support Document 14-009, “Brookhaven National Laboratory Report

(BNL), “Evaluation of Maximum Radionuclide Groundwater Concentrations for Basement Fill Model, Zion Station Restoration Project”, December 2014

DUST-MS Assumed Basement Inventory:

DUST-MS Inventory

(pCi)

Auxiliary

6503 Containment

2759

Turbine

14679 Spent Fuel Pool/Transfer Canals

780

Crib House/Forebay

6940 Waste Water Treatment Facility

1124

Calculations:

Auxiliary Basement

DUST-MS Results GW Conc Factor Fill Conc Factor

pCi/L pCi/g pC/L per mCi pCi/g per mCi

Co-60 2.60E-08 5.80E-09 4.00E-03 8.92E-04

Cs-134 6.89E-07 3.10E-08 1.06E-01 4.77E-03

Cs-137 2.47E-06 1.11E-07 3.80E-01 1.71E-02

Eu-152 1.07E-07 1.03E-08 1.65E-02 1.58E-03

Eu-154 8.38E-08 7.96E-09 1.29E-02 1.22E-03

H-3 9.10E-04 0.00E+00 1.40E+02 0.00E+00

Ni-63 1.90E-06 1.18E-07 2.92E-01 1.81E-02

Sr-90 1.96E-05 4.51E-08 3.01E+00 6.94E-03

Containment

DUST RESULTS GW Conc Factor Fill Conc Factor

pCi/L pCi/g pCi/L per mCi pCi/g per mCi

Co-60 1.26E-06 2.81E-07 4.57E-01 1.02E-01

Cs-134 6.23E-06 2.80E-07 2.26E+00 1.01E-01

Cs-137 6.23E-06 2.80E-07 2.26E+00 1.01E-01


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Eu-152 2.95E-06 2.81E-07 1.07E+00 1.02E-01

Eu-154 2.95E-06 2.81E-07 1.07E+00 1.02E-01

H-3 1.69E-03 0.00E+00 6.13E+02 0.00E+00

Ni-63 4.53E-06 2.81E-07 1.64E+00 1.02E-01

Sr-90 1.14E-04 2.62E-07 4.13E+01 9.50E-02

Spent Fuel Pool/Transfer Tunnels



Co-60 4.25E-07 9.48E-08 5.45E-01 1.22E-01

Cs-134 1.13E-05 5.09E-07 1.45E+01 6.53E-01

Cs-137 4.07E-05 1.83E-06 5.22E+01 2.35E+00

Eu-152 1.75E-06 1.68E-07 2.24E+00 2.15E-01

Eu-154 1.37E-06 1.30E-07 1.76E+00 1.67E-01

H-3 1.49E-02 0.00E+00 1.91E+04 0.00E+00

Ni-63 3.13E-05 1.94E-06 4.01E+01 2.49E+00

Sr-90 3.21E-04 7.38E-07 4.12E+02 9.46E-01

Turbine



Co-60 1.68E-06 3.74E-07 1.14E-01 2.55E-02

Cs-134 8.29E-06 3.73E-07 5.65E-01 2.54E-02

Cs-137 8.29E-06 3.73E-07 5.65E-01 2.54E-02

Eu-152 3.93E-06 3.74E-07 2.68E-01 2.55E-02

Eu-154 3.93E-06 3.74E-07 2.68E-01 2.55E-02

H-3 2.25E-03 0.00E+00 1.53E+02 0.00E+00

Ni-63 6.02E-06 3.73E-07 4.10E-01 2.54E-02

Sr-90 1.52E-04 3.49E-07 1.04E+01 2.38E-02

Crib House/Forebay



Co-60 6.78E-07 1.51E-07 9.77E-02 2.18E-02

Cs-134 3.35E-06 1.51E-07 4.83E-01 2.18E-02


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Cs-137 3.35E-06 1.51E-07 4.83E-01 2.18E-02

Eu-152 1.59E-06 1.51E-07 2.29E-01 2.18E-02

Eu-154 1.59E-06 1.51E-07 2.29E-01 2.18E-02

H-3 9.08E-04 0.00E+00 1.31E+02 0.00E+00

Ni-63 2.44E-06 1.51E-07 3.52E-01 2.18E-02

Sr-90 6.14E-05 1.41E-07 8.85E+00 2.03E-02

Waste Water Treatment Facility



Co-60 2.34E-05 5.22E-06 2.08E+01 4.64E+00

Cs-134 1.16E-04 5.20E-06 1.03E+02 4.63E+00

Cs-137 1.16E-04 5.20E-06 1.03E+02 4.63E+00

Eu-152 5.43E-05 5.21E-06 4.83E+01 4.64E+00

Eu-154 5.48E-05 5.21E-06 4.88E+01 4.64E+00

H-3 3.13E-02 0.00E+00 2.78E+04 0.00E+00

Ni-63 8.40E-05 5.21E-06 7.47E+01 4.64E+00

Sr-90 2.12E-03 4.87E-06 1.89E+03 4.33E+00


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ATTACHMENT 6

Calculation of BFM Basement Dose Factors


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BFM Groundwater Dose Factors (Not adjusted for insignificant contributor dose)

Auxiliary ContainmentSpent Fuel

Pool/Transfer CanalsTurbine Crib House/Forebay1 WWTF

(mrem/y per mCi) (mrem/y per mCi) (mrem/y per mCi) (mrem/y per mCi) (mrem/y per mCi) (mrem/y per mCi)

Co-60 1.00E-04 1.14E-02 0.00E+00 2.87E-03 2.85E-03 5.21E-01

Cs-134 9.27E-03 1.98E-01 0.00E+00 4.94E-02 4.91E-02 9.03E+00

Cs-137 2.64E-02 1.57E-01 0.00E+00 3.92E-02 3.90E-02 7.17E+00

Eu-152 5.96E-05 3.87E-03 0.00E+00 9.69E-04 9.64E-04 1.75E-01

Eu-154 6.77E-05 5.62E-03 0.00E+00 1.41E-03 1.40E-03 2.56E-01

H-3 6.21E-03 2.72E-02 0.00E+00 6.80E-03 6.75E-03 1.23E+00

Ni-63 2.86E-04 1.61E-03 0.00E+00 4.01E-04 4.00E-04 7.31E-02

Sr-90 3.29E-01 4.51E+00 0.00E+00 1.13E+00 1.12E+00 2.06E+02

BFM Drilling Spoils Dose Factors (Reference: TSD 14-021, Table 5) (Not adjusted for insignificant contributor dose)

Auxiliary ContainmentSpent Fuel

Pool/Transfer CanalsTurbine Crib House/Forebay1 WWTF

(mrem/y per mCi) (mrem/y per mCi) (mrem/y per mCi) (mrem/y per mCi) (mrem/y per mCi) (mrem/y per mCi)

Co-60 1.07E-02 2.97E-02 1.58E-01 9.58E-03 2.07E-02 2.26E-01

Cs-134 6.29E-03 1.72E-02 9.41E-02 5.54E-03 1.19E-02 1.31E-01

Cs-137 3.22E-03 7.27E-03 4.83E-02 2.35E-03 5.05E-03 5.57E-02

Eu-152 5.02E-03 1.38E-02 7.46E-02 4.45E-03 9.58E-03 1.05E-01

Eu-154 5.57E-03 1.46E-02 8.25E-02 4.73E-03 1.02E-02 1.12E-01

H-3 0.00E+00 0.00E+00 1.45E-09 0.00E+00 0.00E+00 0.00E+00

Ni-63 3.23E-08 5.61E-08 3.78E-07 1.86E-08 4.81E-08 4.16E-07

Sr-90 6.26E-05 1.39E-04 7.60E-04 4.61E-05 1.16E-04 1.04E-03

Note 1: The Crib House/Forebay Groundwater and Drilling Spoils Dose Factors was adjusted higher to account for a revision that lowered the void volume. The demolition plan for the Crib House was revised to leave the interior walls as opposed to removing all interior walls

per the original demolition plan. This resulted in a decrease in the Crib House saturated zone fill mass in the Basement Fill Model

with a corresponding increase in the pCi/g and pCi/L values calculated in TSD 14-009. The BFM and DS dose factors are both

directly proportional to the pCi/g and pCi/L concentrations which are inversely proportional to

the ratio of the Revised Volume to the Original Volume for the Crib House/Forebay combined. The revised

Crib House/Forebay volume and the ratio of the Revised/Original volume is provided in TSD 14-014, Revision 1 (Table 38)

Ratio of Revised/Original Crib House/Forebay Volume = 8.60E-01


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ATTACHMENT 7

RESRAD Input Parameters for Soil DCGL Uncertainty Analysis

RESRAD Input Parameters for ZSRP Soil DCGL Uncertainty Analysis TSD 14-010 Revision 4

of 165




Distribution coefficients (contaminated, unsaturated, and saturated zones) (cm3/g) Co-60 P 1 D 1161 TSD 14-004 (Reference 5) 5.46 2.53 0.001 0.999 235 Cs-134 P 1 D 615 TSD 14-004 6.1 2.33 0.001 0.999 446 Cs-137 P 1 D 615 TSD 14-004 6.1 2.33 0.001 0.999 446 Ni-63 P 1 D 62 TSD 14-004 6.05 1.46 0.001 0.999 424 Sr-90 P 1 D 2.3 TSD 14-004 3.45 2.12 0.001 0.999 32 Initial concentration of radionuclides present in groundwater (pCi/l)


NR NR NR NR

Calculation Times Time since placement of material (y) P 3 D 0 RESRAD Default NR NR NR NR Time for calculations (y) P 3 D 0, 1, 3, 10, 30, 100, 300,

1000 RESRAD Default NR NR NR NR




0.15 or 1 Surface soil depth 0.15 Subsurface soil depth 1 m

NR NR NR NR


Diameter of 64,500 m2 contaminated area.

NR NR NR NR


NA NA NA No No contamination in water table

NA NA NA NA


Pe 3e D 0 No contamination in water table

NR NR NR NR

Cover and Contaminated Zone Hydrological Data Cover depth (m) P 2 D 0 No Cover NR NR NR NR NA

Density of cover (g/cm3) P 1 NA NA No Cover NA NA NA NA NA

Cover erosion rate (m/y)

P,B 2 NA Continuous Logarithmic NUREG/CR-6697 Att. C Table 3.8-1

5E-08 0.0007 0.005 0.2 0.0015


P 1 S Truncated Normal NUREG 6697 distribution for site soil type - sand

1.51 0.16 0.001 0.999 1.51


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P,B 2 S Continuous Logarithmic NUREG/CR-6697 Att. C Table 3.8-1

5E-08 0.0007 0.005 0.2 0.0015

Contaminated zone total porosity P 2 S Truncated Normal NUREG 6697 distribution for site soil type - sand

0.43 0.06 0.001 0.999 0.43


0.066


NR NR NR NR


P 2 S Loguniform


786 17000 NA NA 3649

Contaminated zone b parameter P 2 S Truncated Lognormal - N NUREG 6697 distribution for site soil type - sand

-.0253 0.216 0.001 0.999 0.97


1.98 0.334 0.001 0.999 7.2

Evapotranspiration coefficient P 2 S

Uniform NUREG/CR-6697 Att. C 0.5 0.75 NR NR 0.625

Average annual wind speed (m/s) P 2 S

Bounded Lognormal N NUREG/CR-6697 Att. C 1.445 0.2419 1.4 13 4.2



NR NR NR NR


0.19 NUREG-5512, Vol. 3, Table 6-18 (Illinois Average) Converted 0.52 L/m2/y to m/y

NR NR NR NR 0.56


NR NR NR NR

Runoff coefficient P 2 S Uniform NUREG/CR-6697 Att. C 0.1 0.8 NR NR 0.45 Watershed area for nearby stream or pond (m2)




Saturated Zone Hydrological Data Density of saturated zone (g/cm3) P 1 S Truncated Normal NUREG 6697 distribution

for site soil type - sand 1.51 0.16 0.001 0.999 1.51

Saturated zone total porosity P 1 S Truncated Normal NUREG 6697 distribution for site soil type - sand

0.43 0.06 0.001 0.999 0.43

Saturated zone effective porosity P 1 S Truncated Normal NUREG 6697 distribution for site soil type - sand

0.383 0.0610 0.001 0.999 0.383



NR NR NR NR


P 1 S Loguniform


786 17000 NA NA 3649

Saturated zone hydraulic gradient P 2 S Bounded Lognormal - N NUREG/CR-6697 Att. C -5.11 1.77 0.00007 0.5 0.006


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Saturated zone b parameter P 2 D NA saturated zone b not active because water table drop rate =0

NUREG/CR-6697 Att. C NR NR NR NR NR

Water table drop rate (m/y) P 3 D 0 Well pumping rate assumed small relative to water table volume.

NR NR NR NR


P 2 S Triangular NUREG/CR-6697 6 10 30 10


P 3 D ND Non Dispersion Model used NR NR NR NR

Well pumping rate (m3/y) B,P 2 S 2250 Calculated according to method described in NUREG/CR-6697, Att. C Section 3.10 assuming 10,000m2 land area, Illinois specific irrigation rate and NUREG/CR-5512 vol. 3 livestock water intake rate

NR NR NR NR NR


Number of unsaturated zone strata P 3 D 1 One unsaturated zone NA NA NA NA Unsat. zone thickness (m) P 1 D 3.45

(for 0.15 m contaminated zone thickness) 2.6 (for 1.0 m contaminated zone thickness)

Distance from ground surface (591’) to water table (579’) = 3.6 Reference 4, Tables 5.1 and 5.2 For 0.15 m contaminated zone thickness unsaturated zone = 3.6 – 0.15 = 3.45 m For 1.0 m contaminated zone thickness unsaturated zone = 3.6 – 1.0 = 2.6 m

NA NA NA NA

Unsat. zone soil density (g/cm3) P 2 S Truncated Normal NUREG 6697 distribution for site soil type - sand

1.51 0.16 0.001 0.999 1.51

Unsat. zone total porosity P 2 S Truncated Normal NUREG 6697 distribution for site soil type - sand

0.43 0.06 0.001 0.999 0.43

Unsat. zone effective porosity P 2 S Truncated Normal NUREG 6697 distribution for site soil type - sand

0.383 0.0610 0.001 0.999 0.383

Unsat. zone field capacity P 3 D 0.066


NR NR NR NR


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P 2 S Loguniform


786 17000 NA NA 3649


P 2 S Truncated Lognormal - N NUREG 6697 distribution for site soil type - sand

-.0253 0.216 0.001 0.999 0.97

Occupancy

Inhalation rate (m3/y) M,B 3 D 8400 NUREG/CR-5512, Vol. 33 Table 6.29 (23 m3/d x 365 d)

NR NR NR NR

Mass loading for inhalation (g/m3) P,B 2 S Continuous Linear NUREG/CR-6697, Att. C See NUREG-6697 Table 4.6-1




2.35E-05


NR NR NR NR

Indoor dust filtration factor P,B 2 S Uniform NUREG/CR-6697, Att. C 0.15 0.95 0.55 Shielding factor, external gamma P 2 S Bounded Lognormal - N NUREG/CR-6697, Att. C -1.3 0.59 0.044 1 0.2725


NR NR NR NR



NR NR NR NR


NR NR NR NR



NR NR NR NR


NR NR NR NR


NR NR NR NR


NR NR NR NR


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Fish consumption (kg/y) M,B 3 D 20.6 NUREG/CR-5512, Vol. 3 Table 6.87 Note: Aquatic Pathway inactive

NR NR NR NR

Other seafood consumption (kg/y) M,B 3 D 0.9 RESRAD User’s Manual Table D.2 Note: Aquatic Pathway inactive

NR NR NR NR


NR NR NR NR


NR NR NR NR



NR NR NR NR


B,P 3 NA



NR NR NR NR



NR NR NR NR



NR NR NR NR

Contamination fraction of plant food B,P 3 D 1 100% of food consumption assumed contaminated

NR NR NR NR

Contamination fraction of meat B,P 3 D 1 100% of food consumption assumed contaminated

NR NR NR NR

Contamination fraction of milk B,P 3 D 1 100% of food consumption assumed contaminated

NR NR NR NR



NR NR NR NR



NR NR NR NR



NR NR NR NR


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NR NR NR NR


NR NR NR NR



NR NR NR NR

Depth of soil mixing layer (m) P 2 S Triangular NUREG/CR-6697, Att. C 0 0.15 0.6 0.23

Depth of roots (m) P 1 S Uniform NUREG/CR-6697, Att. C 0.3 4.0

2.15



NR NR NR NR


B,P 3 NA



NR NR NR NR


NR NR NR NR


P 2 S Truncated Lognormal - N NUREG/CR-6697, Att. C 0.56 0.48 0.001 0.999 1.75



NR NR NR NR



NR NR NR NR


NR NR NR NR


NR NR NR NR


NR NR NR NR


NR NR NR NR


NR NR NR NR


NR NR NR NR


P 2 S Triangular NUREG/CR-6697, Att. C 5.1 18 84 33



NR NR NR NR


P 2 D Triangular NUREG/CR-6697, Att. C 0.06 0.67 0.95 0.58


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NR NR NR NR



NR NR NR NR



NR NR NR NR



NR NR NR NR



NR NR NR NR


NR NR NR NR


NR NR NR NR


NR NR NR NR

Fish B 3 D 7 RESRAD User’s Manual Table D.6 Note: Aquatic pathway inactive

NR NR NR NR

Crustacea and mollusks B 3 D 7 RESRAD User’s Manual Table D.6 Note: Aquatic pathway inactive

NR NR NR NR


NR NR NR NR


NR NR NR NR


NR NR NR NR








of 165










NR NR NR NR


FGR11 NR NR NR NR

Cs-134 M 3 D 4.62E-05

FGR11 NR NR NR NR

Cs-137 M 3 D 3.19E-05

FGR11 NR NR NR NR

Ni-63 M 3 D 6.29E-06

FGR11 NR NR NR NR

Sr-90 M 3 D 1.30E-03

FGR11 NR NR NR NR


FGR11 NR NR NR NR

Cs-134 M 3 D 7.33E-05

FGR11 NR NR NR NR

Cs-137 M 3 D 5.00E-05

FGR11 NR NR NR NR

Ni-63 M 3 D 5.77E-07

FGR11 NR NR NR NR

Sr-90 M 3 D 1.42E-04

FGR11 NR NR NR NR

Plant Transfer Factors (pCi/g plant)/(pCi/g soil) Co-60 P 1 S Lognormal - N NUREG/CR-6697, Att. C -2.53 0.9 7.9E-02






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Meat Transfer Factors (pCi/kg)/(pCi/d) Co-60 P 2 S Lognormal - N NUREG/CR-6697, Att. C -3.51 1.0 3.0E-02





Milk Transfer Factors (pCi/L)/(pCi/d) Co-60 P 2 S Lognormal - N NUREG/CR-6697, Att. C -6.21 0.7 2.0E-03




Sr-90


Bioaccumulation Factors for Fish ((pCi/kg)/(pCi/L)) Co-60 P 2 NA Inactive

NUREG/CR-6697, Att. C 5.7 1.1 3.0E+02

Cs-134 P 2 NA Inactive

NUREG/CR-6697, Att. C 7.6 0.7 2.0E+03


NUREG/CR-6697, Att. C 7.6 0.7 2.0E+03

Ni-63 P 2 NA Inactive

NUREG/CR-6697, Att. C 4.6 1.1 9.9E+01

Sr-90 P 2 NA Inactive

NUREG/CR-6697, Att. C 4.1 1.1 6.0E+01

Bioaccumulation Factors for Crustacea/ Mollusks ((pCi/kg)/(pCi/L)) Co-60 P 3 NA Inactive

RESRAD User’s Manual Appendix D

NR NR NR NR



NR NR NR NR



NR NR NR NR


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Ni-63 P 3 NA Inactive


NR NR NR NR

Sr-90 P 3 NA Inactive


NR NR NR NR


Notes: a P = physical, B = behavioral, M = metabolic; (see NUREG/CR-6697, Attachment B, Table 4.) b 1 = high-priority parameter, 2 = medium-priority parameter, 3 = low-priority parameter (see NUREG/CR-6697, Attachment B, Table 4.1) c D = deterministic, S = stochastic d Distributions Statistical Parameters: Lognormal-n: 1= mean, 2 = standard deviation Bounded lognormal-n: 1= mean, 2 = standard deviation, 3 = minimum, 4 = maximum Truncated lognormal-n: 1= mean, 2 = standard deviation, 3 = lower quantile, 4 = upper quantile Bounded normal: 1 = mean, 2 = standard deviation, 3 = minimum, 4 = maximum Beta: 1 = minimum, 2 = maximum, 3 = P-value, 4 = Q-value Triangular: 1 = minimum, 2 = mode, 3 = maximum Uniform: 1 = minimum, 2 = maximum


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ATTACHMENT 8

RESRAD Uncertainty Reports for Soil DCGLs



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ATTACHMENT 9

RESRAD Input Parameters for ZSRP Surface Soil and Subsurface Soil DCGL

RESRAD Input Parameters for ZSRP Surface and Subsurface Soil DCGL TSD 14-010 Revision 4

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Distribution coefficients (contaminated, unsaturated, and saturated zones) (cm3/g) Co-60 P 1 D 1161 TSD 14-004,

minimum site-specific sand value (see section 7)

5.46 2.53 0.001 0.999 235

Cs-134 P 1 D 615 TSD 14-004 minimum site-specific sand value (see section 7)

6.1 2.33 0.001 0.999 446

Cs-137 P 1 D 615 TSD 14-004 minimum site-specific sand value (see section 7)

6.1 2.33 0.001 0.999 446

Ni-63 P 1 D 331 TSD 14-004 maximum site-specific sand value (see section 7)

6.05 1.46 0.001 0.999 424

Sr-90 P 1 D 3.4 TSD 14-004 maximum site-specific sand value (see section 7)

3.45 2.12 0.001 0.999 32

Initial concentration of radionuclides present in groundwater (pCi/l)


NR NR NR NR

Calculation Times Time since placement of material (y) P 3 D 0 RESRAD Default NR NR NR NR Time for calculations (y) P 3 D 0, 1, 3, 10, 30, 100, 300,

1000 RESRAD Default NR NR NR NR



Thickness of contaminated zone (m) P 2 D 0.15 or 1.0 Surface Soil Depth = 0.15m Subsurface Soil Depth = 1m

NR NR NR NR


Diameter of 64,500 m2 contaminated area.

NR NR NR NR


NA NA NA No No initial contamination in water table

NA NA NA NA


Pe 3e D 0 No initial contamination in water table

NR NR NR NR

Cover and Contaminated Zone Hydrological Data Cover depth (m) P 2 D 0 No Cover NR NR NR NR NA


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Density of cover (g/cm3)

P 1 NA NA No Cover NA NA NA NA NA

Cover erosion rate (m/y)

P,B 2 NA NA No Cover NA NA NA NA NA


P 1 D 1.8 Site-specific average native sand and disturbed sand from Reference 4, Table 5.5.

1.51 0.16 0.001 0.999 1.51



5E-08 0.0007 0.005 0.2 0.0015

Contaminated zone total porosity P 2 D 0.35 Site-specific average native sand and disturbed sand from Reference 4, Table 5.6

0.43 0.06 0.001 0.999 0.43


0.066


NR NR NR NR


P 2 D 2880 Site-specific value from Reference 4, Table 5.9

786 17000 NA NA 3649

Contaminated zone b parameter P 2 D 0.97

Median NUREG 6697 distribution for site soil type - sand

-0.0253 0.216 NA NA 0.97


1.98 0.334 0.001 0.999 7.2



0.5 0.75 NR NR 0.625



1.445 0.2419 1.4 13 4.2



NR NR NR NR


0.19 NUREG-5512, Vol. 3, Table 6-18 (Illinois Average)

NR NR NR NR


NR NR NR NR


0.1 0.8 NR NR 0.45





Saturated Zone Hydrological Data Density of saturated zone (g/cm3) P 2 D 1.8 Site-specific average native

sand and disturbed sand from Reference 4, Table 5.5.

1.51 0.16 0.001 0.999 1.52


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Saturated zone total porosity P 1 D 0.35 Site-specific average native sand and disturbed sand from Reference 4, Table 5.6

0.43 0.0699 0.214 0.646 0.43

Saturated zone effective porosity P 1 D 0.29 Site-specific average native sand and disturbed sand from Reference 4, Table 5.7

0.43 0.06 0.001 0.999 0.43



NR NR NR NR


P 1 D 2880 Site-specific average from Reference 4, Table 5.9.

786 17000 NA NA 3649

Saturated zone hydraulic gradient P 2 D 0.0039 Site-specific average native sand and disturbed sand from Reference 4, Table 5.10

-5.11 1.77 0.00007 0.5 0.006

Saturated zone b parameter P 2 D NA saturated zone b not active because water table drop rate =0

NUREG/CR-6697, Att. A, Table 2

NR NR NR NR NR

Water table drop rate (m/y) P 3 D 0 Well pumping rate assumed small relative to water table volume.

NR NR NR NR


P 2 D 3.3 Mid-point of Shallow Aquifer Reference 4, Table 5.1

NA NA NA NA


P 3 D ND Non-dispersion model used NR NR NR NR

Well pumping rate (m3/y) P 2 D 2250 Calculated according to method described in NUREG/CR-6697, Att. C Section 3.10 assuming 10,000m2 land area, Illinois specific irrigation rate and NUREG/CR-5512 vol. 3 livestock water intake rate

NR NR NR NR NR


Number of unsaturated zone strata P 3 D 1 One unsaturated zone NA NA NA NA


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Unsat. zone thickness (m) P 1 D 3.45 (for 0.15 m contaminated zone thickness) 2.6 (for 1.0 m contaminated zone thickness)

Distance from ground surface (591’) to water table (579’) = 3.6 Reference 4, Tables 5.1 and 5.2 For 0.15 m contaminated zone thickness unsaturated zone = 3.6 – 0.15 = 3.45 m For 1.0 m contaminated zone thickness unsaturated zone = 3.6 – 1.0 = 2.6 m

NA NA NA NA

Unsat. zone soil density (g/cm3) P 2 D 1.8 Site-specific value from Reference 4, Table 5.5

NA NA NA NA

Unsat. zone total porosity P 1 D 0.35 Site-specific average native sand and disturbed sand from Reference 4, Table 5.6

0.43 0.0699 0.214 0.646 0.43

Unsat. zone effective porosity P 1 D 0.29 Site-specific average native sand and disturbed sand from Reference 4, Table 5.7

0.342 0.0705 0.124 0.56 0.342

Unsat. zone field capacity P 3 D 0.066


NR NR NR NR



-0.511 1.77 0.00007 0.5 0.006


P 2 D 0.97 Median NUREG/CR-6697 Att. C Sand soil type

-0.0253 0.216 0.501 1.90 0.97

Occupancy

Inhalation rate (m3/y) M,B 3 D 8400 NUREG/CR-5512, Vol. 33 Table 6.29 (=23 m3/d x 365 d/y)

NR NR NR NR

Mass loading for inhalation (g/m3) P,B 2 D 2.35E-05 Median NUREG/CR-6697, Att. C





2.35E-05


NR NR NR NR


0.15 0.95 0.55


of 165



Shielding factor, external gamma P 2 D 0.40 75th Percentile NUREG/CR-6697, Att. C

-1.3 0.59 0.044 1 0.272


NR NR NR NR



NR NR NR NR


NR NR NR NR



NR NR NR NR


NR NR NR NR


NR NR NR NR


NR NR NR NR

Fish consumption (kg/y) M,B 3 D 20.6 NUREG/CR-5512, Vol. 3 Table 6.87 Note: Aquatic Pathway inactive

NR NR NR NR

Other seafood consumption (kg/y) M,B 3 D 0.9 RESRAD User’s Manual Table D.2 Note: Aquatic Pathway inactive

NR NR NR NR


NR NR NR NR


NR NR NR NR



NR NR NR NR


B,P 3 NA



NR NR NR NR



NR NR NR NR


of 165





NR NR NR NR


NR NR NR NR


NR NR NR NR


NR NR NR NR



NR NR NR NR



NR NR NR NR



NR NR NR NR



NR NR NR NR


NR NR NR NR



NR NR NR NR

Depth of soil mixing layer (m) P 2 D 0.15 for Surface Soil 0.23 for Subsurface Soil

25th Percentile NUREG/CR-6697, Att. C Median NUREG/CR-6697, Att. C

0 0.15 0.6 0.23


0.3 4.0

2.15



NR NR NR NR


B,P 3 NA



NR NR NR NR


NR NR NR NR


of 165




P 2 D 1.75 Median NUREG/CR-6697, Att. C

0.56 0.48 0.001 0.999 1.75



NR NR NR NR


P 3 D 1.90 NUREG/CR-5512, Vol. 3 Table 6.87 (maximum of forage, grain and hay)

NR NR NR NR


NR NR NR NR


NR NR NR NR


NR NR NR NR


NR NR NR NR


NR NR NR NR


NR NR NR NR


P 2 D 33 Median NUREG/CR-6697, Att. C

5.1 18 84 33



NR NR NR NR


P 2 D 0.58 Median NUREG/CR-6697, Att. C

0.06 0.67 0.95 0.58



NR NR NR NR



NR NR NR NR



NR NR NR NR



NR NR NR NR



NR NR NR NR


NR NR NR NR


NR NR NR NR


NR NR NR NR


of 165




NR NR NR NR


NR NR NR NR


NR NR NR NR


NR NR NR NR


NR NR NR NR














NR NR NR NR


FGR11 NR NR NR NR

Cs-134 M 3 D 4.62E-05

FGR11 NR NR NR NR

Cs-137 M 3 D 3.19E-05

FGR11 NR NR NR NR

Ni-63 M 3 D 6.29E-06

FGR11 NR NR NR NR

Sr-90 M 3 D 1.30E-03

FGR11 NR NR NR NR


of 165




FGR11 NR NR NR NR

Cs-134 M 3 D 7.33E-05

FGR11 NR NR NR NR

Cs-137 M 3 D 5.00E-05

FGR11 NR NR NR NR

Ni-63 M 3 D 5.77E-07

FGR11 NR NR NR NR

Sr-90 M 3 D 1.42E-04

FGR11 NR NR NR NR

Plant Transfer Factors (pCi/g plant)/(pCi/g soil) Co-60 P 1 D 1.5E-01 75th Percentile

NUREG/CR-6697, Att. C -2.53 0.9 7.9E-02


-3.22 1.0 4.0E-02


-3.22 1.0 4.0E-02

Ni-63 P 1 D 9.2E-02 75th Percentile NUREG/CR-6697, Att. C

-3.00 0.9 5.0E-02


-1.20 1.0 3.0E-01

Meat Transfer Factors (pCi/kg)/(pCi/d) Co-60 P 2 D 5.8E-02 75th Percentile

NUREG/CR-6697, Att. C -3.51 1.0 3.0E-02


-3.00 0.4 5.0E-02


-3.00 0.4 5.0E-02

Ni-63 P 2 D 5E-03 Median NUREG/CR-6697, Att. C

-5.30 0.9 5.0E-03

Sr-90 P 2 D 8E-03


-4.61 0.4 1.0E-02

Milk Transfer Factors (pCi/L)/(pCi/d) Co-60 P 2 D 2E-03


-6.21 0.7 2.0E-03


-4.61 0.5 1.0E-02


-4.61 0.5 1.0E-02


-3.91 0.7 2.0E-02


of 165




-6.21 0.5 2.0E-03

Bioaccumulation Factors for Fish ((pCi/kg)/(pCi/L)) Co-60 P 2 NA Inactive NUREG/CR-6697, Att. C 5.7 1.1 3.0E+02 Cs-134 P 2 NA Inactive NUREG/CR-6697, Att. C 7.6 0.7 2.0E+03 Cs-137 P 2 NA Inactive NUREG/CR-6697, Att. C 7.6 0.7 2.0E+03 Ni-63 P 2 NA Inactive NUREG/CR-6697, Att. C 4.6 1.1 9.9E+01 Sr-90 P 2 NA Inactive NUREG/CR-6697, Att. C 4.1 1.1 6.0E+01




NR NR NR NR


NR NR NR NR


NR NR NR NR


NR NR NR NR


Notes: a P = physical, B = behavioral, M = metabolic; (see NUREG/CR-6697, Attachment B, Table 4.) b 1 = high-priority parameter, 2 = medium-priority parameter, 3 = low-priority parameter (see NUREG/CR-6697, Attachment B, Table 4.1) c D = deterministic, S = stochastic d Distributions Statistical Parameters: Lognormal-n: 1= mean, 2 = standard deviation Bounded lognormal-n: 1= mean, 2 = standard deviation, 3 = minimum, 4 = maximum Truncated lognormal-n: 1= mean, 2 = standard deviation, 3 = lower quantile, 4 = upper quantile Bounded normal: 1 = mean, 2 = standard deviation, 3 = minimum, 4 = maximum Beta: 1 = minimum, 2 = maximum, 3 = P-value, 4 = Q-value Triangular: 1 = minimum, 2 = mode, 3 = maximum Uniform: 1 = minimum, 2 = maximum


of 165

ATTACHMENT 10

RESRAD Summary Reports for Soil DCGLs



of 165

ATTACHMENT 11

RESRAD Input Parameters for BFM Analysis of Initial Suite of Radionuclides

RESRAD Input Parameters for BFM Analysis of Initial Suite of Radionuclide TSD 14-010 Revision 4

of 165




Distribution coefficients (contaminated, unsaturated, and saturated zones) (cm3/g) Ac-227 (daughter of Cm-243 and Pu-239)

P 1 D 825 Median Value NUREG/CR-6697, Att. C1

6.72 3.22 0.001 0.999 825

Ag-108m P 1 D 27 TSD 14-004 (Reference 5) 8.38 2.10 0.001 0.999 216 Am-241 (also daughter of Cm-245 and Pu-241)

P 1 D

177 TSD 14-004 7.28 3.15 0.001 0.999 1445

Am-243 (daughter for Cm-243) P 1 D 177 TSD 14-004 7.28 3.15 0.001 0.999 1445 C-14 P 1 D 1.2 TSD 14-004 2.4 3.22 0.001 0.999 11 Cm-243 P 1 D 891 TSD 14-004 8.82 1.82 0.001 0.999 6761 Cm-244 P 1 D 891 TSD 14-004 8.82 1.82 0.001 0.999 6761 Co-60 P 1 D 223 TSD 14-004 5.46 2.53 0.001 0.999 235 Cs-137 P 1 D 45 TSD 14-004 6.1 2.33 0.001 0.999 446 Eu-152 P 1 D 95 TSD 14-004 6.72 3.22 0.001 0.999 825 Eu-154 P 1 D 95 TSD 14-004 6.72 3.22 0.001 0.999 825 Eu-155 P 1 D 95 TSD 14-004 6.72 3.22 0.001 0.999 825 Fe-155 P 1 D 2857 TSD 14-004 5.34 2.67 0.001 0.999 209 Gd-152 (daughter for Eu-152) P 1 D 825 Median Value

NUREG/CR-6697, Att. C 6.72 3.22 0.001 0.999 825

H-3 P 1 D 0 TSD 14-004 NA NA NA NA NA Nb-94 P 1 D 45 TSD 14-004 5.94 3.22 0.001 0.999 380

Nd-144 (daughter for Eu-152) P 1 D 158 RESRADv.7.0 Default Nd not listed in NUREG/CR-6697

NA NA NA NA NA

Ni-59 P 1 D 62 TSD 14-004 6.05 1.46 0.001 0.999 424 Ni-63 P 1 D 62 TSD 14-004 6.05 1.46 0.001 0.999 424 Np-237 (also daughter for Am-241, Cm-245, and Pu-241)

P 1 D 1 TSD 14-004 2.84 2.25 0.001 0.999 17

Pa-231 (daughter for Cm-243 and Pu-239)

P 1 D 380 Median Value NUREG/CR-6697, Att. C

5.94 3.22 0.001 0.999 380

Pb-210 (daughter for Pu-238) P 1 D 2392 Median Value NUREG/CR-6697, Att. C

7.78 2.76 0.001 0.999 2392

Pm-147 P 1 D 95 TSD 14-004 6.72 3.22 0.001 0.999 825 Po-210 (daughter Pu-238) P 1 D 181 Median Value

NUREG/CR-6697, Att. C 5.20 1.68 0.001 0.999 181


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Pu-238 P 1 D 174 TSD 14-004 6.86 1.89 0.001 0.999 953 Pu-239 (also daughter for Cm-243) P 1 D 174 TSD 14-004 6.86 1.89 0.001 0.999 953

Pu-240 (also daughter for Cm-244) P 1 D 174 TSD 14-004 6.86 1.89 0.001 0.999 953 Pu-241 P 1 D 174 TSD 14-004 6.86 1.89 0.001 0.999 953 Ra-226 (daughter Pu-238) P 1 D 3533 Median Value

NUREG/CR-6697, Att. C 8.17 1.7 0.001 0.999 3533

Ra-228 (daughter Cm-244 and Pu-240)


8.17 1.7 0.001 0.999 3533

Sb-125 P 1 D 17 TSD 14-004 5.94 3.22 0.001 0.999 373 Sm-147 (daughter Pm-147) P 1 D 825 Median Value

NUREG/CR-6697, Att. C 6.72 3.22 0.001 0.999 825

Sm-148 (daughter Eu-152) P 1 D 825 Median Value NUREG/CR-6697, Att. C

6.72 3.22 0.001 0.999 825

Sr-90 P 1 D 2.3 TSD 14-004 3.45 2.12 0.001 0.999 32 Te-125m (daughter Sb-125) P 1 D 0 Median Value

NUREG/CR-6697, Att. C 3.64 3.22 0.001 0.999 0

Tc-99 P 1 D 0 TSD 14-004 -0.67 3.16 0.001 0.999 0

Th-228 (daughter Cm-244 and Pu-240)


8.68 3.62 0.001 0.999 5884

Th-229 (daughter Am-241, Cm-245, Np-237, and Pu-241)


8.68 3.62 0.001 0.999 5884



8.68 3.62 0.001 0.999 5884



8.68 3.62 0.001 0.999 5884

U-233 (daughter fAm-241, Cm-245, Np-237, and Pu-241)


4.84 3.13 0.001 0.999 126

U-234 (daughter Pu-238) P 1 D 126 Median Value NUREG/CR-6697, Att. C

4.84 3.13 0.001 0.999 126

U-235 (daughter Cm-243 and Pu-239)


4.84 3.13 0.001 0.999 126

U-236 (daughter Cm-244 and Pu-240)


4.84 3.13 0.001 0.999 126

Initial concentration of radionuclides present in groundwater (pCi/l)


NR NR NR NR

Calculation Times

Time since placement of material (y) P 3 D 1 Results in maximum concentration to be at t=0

NR NR NR NR



Contaminated Zone


of 165



Area of contaminated zone (m2) P 2 D 64,500 Area of the ‘Radiological Protected Area’ on Zion Site

NR NR NR NR


3

Depth of fill mixing zone depends on basement. 3m is used as nominal value based on assumed well screen depth. Note: this parameter has no effect on the calculated values for unitized Exposure Factors.

NR NR NR NR



NR NR NR NR



NA NA NA NA



NR NR NR NR


level elevation at 591ft (179.6m) and equilibrium water level in basements at 579ft (176m)

NR NR NR NR

Density of cover material P 2 D 1.8 Site-specific average native sand and disturbed sand from Reference 4, Table 5.5.

NR NR NR NR

Cover erosion rate P,B 2 D 0.0015 Median NUREG/CR-6697 Att. C

5E-08 0,0007 0,005 .2 0.0015


P 1 D 1.56

Median NUREG/CR-6697 Att. C

1.5635 0.2385 0.827 2.3 1.56

Contaminated zone erosion rate m/y)


5E-08 0,0007 0,005 .2 0.0015


of 165



Contaminated zone total porosity P 2 D 0.42 Median NUREG/CR 6697

0.425 0.0867 0.001 0.999 0.42


0.066


NR NR NR NR


P 2 D 2880


786 17000 NA NA 3649

Contaminated zone b parameter P 2 D 0.97 Median NUREG 6697 distribution for site soil type - sand

-.0253 0.216 0.501 1.90 0.97


1.98 0.334 0.001 0.999 7.2


0.625 25th Percentile NUREG/CR-6697 Att. C

0.5 0.75 NR NR 0.625



1.445 0.2419 1.4 13 4.2



NR NR NR NR


0.19 NUREG-5512, Volume 3, Table 6-18 (Illinois Average) Converted 0.52 L/m2/y to m/y

0.36 0.76 NR NR 0.56


NR NR NR NR


0.1 0.8 NR NR 0.45





Saturated Zone Hydrological Data Density of saturated zone (g/cm3) P 2 D 1.8 Site-specific average native

sand and disturbed sand from Reference 4, Table 5.5.

NR NR NR NR

Saturated zone total porosity P 1 D 0.35 Site-specific average native sand and disturbed sand from Reference 4, Table 5.6.

0.43 0.0699 0.214 0.646 0.43

Saturated zone effective porosity P 1 D 0.27 Site-specific average native sand and disturbed sand from Reference 4, Table 5.7.

0.342 0.0705 0.124 0.56 0.342



NR NR NR NR


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786 17000 NA NA 3649

Saturated zone hydraulic gradient P 2 D 0.0039 Site-specific average native sand and disturbed sand from Reference 4, Table 5.10.

NR NR NR NR

Saturated zone b parameter P 2 D NA saturated zone b not active in RESRAD because water table drop rate =0

NUREG/CR-6697 -.0253 0.216 0.501 1.90 0.97

Water table drop rate (m/y) P 3 D 0 Basement fill water assumed to fully supply well.

NR NR NR NR


P 2 D 1.5 Basement depths vary. 1.5m selected as nominal value based on mid-point of 3m well screen depth. Note: this parameter has no effect on the calculated values for unitized Exposure Factors.

NA NA NA NA

Model: Nondispersion (ND) or Mass-Balance (MB)


NR NR NR NR

Well pumping rate (m3/y) P 2 S 2250 Calculated according to method described in NUREG/CR-6697, Att. C section 3.10 assuming 10,000m2 farming land area, Illinois average irrigation rate, and NUREG/CR-5512 Vol. 3 livestock water consumption rate.

NA NA NA



NA NA NA NA


NA NA NA NA


NA NA NA NA


NA NA NA NA


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NA NA NA NA


NA NA NA NA



NA NA NA NA



NA NA NA NA

Occupancy

Inhalation rate (m3/y) M,B 3 D 8400 NUREG/CR-5512, Vol. 33 Table 6.29 (=23 m3/d x 365 d)

NR NR NR NR

Mass loading for inhalation (g/m3) P,B 2 D 2.35E-05 NUREG/CR-6697, Att. C See NUREG-

6697 Table 4.6-1

See NUREG-

6697 Table 4.6-1

See NUREG-

6697 Table 4.6-1

See NUREG-

6697 Table 4.6-1

2.35E-05

Exposure duration B 3 D 30 RESRAD User’s Manual parameter value not used in dose calculation

NR NR NR NR


0.15 0.95 0.55

Shielding factor, external gamma P 2 D 0.27 Median NUREG/CR-6697, Att. C

-1.3

0.59

0.044

1

0.2725


NR NR NR NR



NR NR NR NR


NR NR NR NR

Ingestion, Dietary

Fruits, non-leafyvegetables, grain consumption (kg/y)

M,B 2 D 112 NUREG/CR-5512, Vol. 3 (other vegetables + fruits + grain) Table 6.87

NR NR NR NR


NR NR NR NR

Milk consumption (L/y) M,B 2 D 233 NUREG/CR-5512, Vol. 3 NR NR NR NR Meat and poultry consumption (kg/y) M,B 3 D 65.1 NUREG/CR5512, Vol. 3

(beef + poultry) NR NR NR NR


of 165




NR NR NR NR


NR NR NR NR

Soil ingestion rate (g/y) M,B 2 D 18.3 NUREG/CR-5512, Vol. 3 NR NR NR NR


NR NR NR NR



NR NR NR NR


B,P 3 NA



NR NR NR NR


B,P 3 D 1 Alll water assumed contaminated

NR NR NR NR



NR NR NR NR


NR NR NR NR


NR NR NR NR


NR NR NR NR



NR NR NR NR


M 3 D 65.2 NUREG/CR5512, Vol. 3 Table 6.87, forage + grain + hay

NR NR NR NR


M 3 D 50.6 NUREG/CR5512, Vol. 3 Table 6.87, beef cattle + poultry + layer hen

NR NR NR NR



NR NR NR NR


of 165




NR NR NR NR



NR NR NR NR

Depth of soil mixing layer (m) P 2 D 0.23 Median NUREG/CR-6697, Att. C

0 0.15 0.6 0.23


0.3

4.0

2.15



NR NR NR NR


B,P 3 NA Not used



NR NR NR NR


NR NR NR NR



0.56 0.48 0.001 0.999 1.75



NR NR NR NR



NR NR NR NR


NR NR NR NR


NR NR NR NR


NR NR NR NR


NR NR NR NR


NR NR NR NR


NR NR NR NR



5.1 18 84 33



NR NR NR NR


P 2 D 0.70 75th Percentile 0.06 0.67 0.95 0.58



NR NR NR NR



NR NR NR NR


of 165




P 3 D 0.35 NUREG/CR-5512, Vol. 3 NR NR NR NR


P 3 D 0.35 NUREG/CR-5512, Vol. 3

NR NR NR NR



NR NR NR NR


NR NR NR NR


NR NR NR NR


NR NR NR NR

Fish B 3 D 7 RESRAD User’s Manual Appendix D

NR NR NR NR

Crustacea and mollusks B 3 D 7 RESRAD User’s Manual Appendix D

NR NR NR NR

Well water B 3 D 1 RESRAD User’s Manual Appendix D

NR NR NR NR

Surface water B 3 D 1 RESRAD User’s Manual Appendix D

NR NR NR NR

Livestock fodder B 3 D 45 RESRAD User’s Manual Appendix D

NR NR NR NR








P 2 D NA NA





Fraction of grain in beef cattle feed B 3 D NA NA NR NR NR NR Fraction of grain in milk cow feed B 3 D NA NA NR NR NR NR


of 165



Dose Conversion Factors (Inhalation mrem/pCi) Ac-227 M 3 D 6.70E+00 FGR11 NR NR NR NR Am-241 M 3 D 4.44E-01 FGR11 NR NR NR NR Am-243 M 3 D 4.40E-01 FGR11 NR NR NR NR C-14 M 3 D 2.09E-06 FGR11 NR NR NR NR Cm-243 M 3 D 3.07E-01 FGR11 NR NR NR NR Cm-244 M 3 D 2.48E-01 FGR11 NR NR NR NR Cm-245 M 3 D 4.55E-01 FGR11 NR NR NR NR Cm-246 M 3 D 4.51E-01 FGR11 NR NR NR NR Co-60 M 3 D 2.19E-04 FGR11 NR NR NR NR Cs-134 M 3 D 4.62E-05 FGR11 NR NR NR NR

Cs-137 M 3 D 3.19E-05 FGR11 NR NR NR NR Eu-152 M 3 D 2.21E-04 FGR11 NR NR NR NR Eu-154 M 3 D 2.86E-04 FGR11 NR NR NR NR Gd-152 M 3 D 2.43E-01 FGR11 NR NR NR NR H-3 M 3 D 6.40E-08 FGR11 NR NR NR NR I-129 M 3 D 1.74E-04 FGR11 NR NR NR NR Nb-94 M 3 D 4.14E-04 FGR11 NR NR NR NR

Ni-59 M 3 D 2.70E-06 FGR11 NR NR NR NR

Nd-144e M 3 D 7.04E-02 ICRP60 NR NR NR NR

Ni-63 M 3 D 6.29E-06 FGR11 NR NR NR NR Np-237 M 3 D 5.40E-01 FGR11 NR NR NR NR Pa-231 M 3 D 1.28E+00 FGR11 NR NR NR NR Pb-210 M 3 D 1.36E-02 FGR11 NR NR NR NR Po-210 M 3 D 9.40E-03 FGR11 NR NR NR NR Pu-238 M 3 D 3.92E-01 FGR11 NR NR NR NR Pu-239 M 3 D 4.29E-01 FGR11 NR NR NR NR Pu-240 M 3 D 4.29E-01 FGR11 NR NR NR NR Pu-241 M 3 D 8.25E-03 FGR11 NR NR NR NR Pu-242 M 3 D 4.11E-01 FGR11 NR NR NR NR Ra-226 M 3 D 8.58E-03 FGR11 NR NR NR NR Ra-228 M 3 D 4.77E-03 FGR11 NR NR NR NR


of 165



Sm-148e M 3 D 7.34E-02 ICRP60 NR NR NR NR Sr-90 M 3 D 1.30E-03 FGR11 NR NR NR NR Tc-99 M 3 D 8.32E-06 FGR11 NR NR NR NR Th-228 M 3 D 3.42E-01 FGR11 NR NR NR NR Th-229 M 3 D 2.15E+00 FGR11 NR NR NR NR Th-230 M 3 D 3.26E-01 FGR11 NR NR NR NR Th232 M 3 D 1.64e+00 FGR11 NR NR NR NR U-233 M 3 D 1.35E-01 FGR11 NR NR NR NR U-234 M 3 D 1.32E-01 FGR11 NR NR NR NR U-235 M 3 D 1.23E-01 FGR11 NR NR NR NR U-236 M 3 D 1.25E-01 FGR11 NR NR NR NR U-238 M 3 D 1.18E-01 FGR11 NR NR NR NR

Dose Conversion Factors (Ingestion mrem/pCi) Ac-227 M 3 D 1.41E-02 FGR11 NR NR NR NR Am-241 M 3 D 3.64E-03 FGR11 NR NR NR NR Am-243 M 3 D 3.62E-03 FGR11 NR NR NR NR C-14 M 3 D 2.09E-06 FGR11 NR NR NR NR Cm-243 M 3 D 2.51E-03 FGR11 NR NR NR NR Cm-244 M 3 D 2.02E-03 FGR11 NR NR NR NR Cm-245 M 3 D 3.74E-03 FGR11 NR NR NR NR Cm-246 M 3 D 3.70E-03 FGR11 NR NR NR NR Co-60 M 3 D 2.69E-05 FGR11 NR NR NR NR Cs-134 M 3 D 7.33E-05 FGR11 NR NR NR NR Cs-137 M 3 D 5.00E-05 FGR11 NR NR NR NR Eu-152 M 3 D 6.48E-06 FGR11 NR NR NR NR Eu-154 M 3 D 9.55E-06 FGR11 NR NR NR NR Gd-152 M 3 D 1.61E-04 FGR11 NR NR NR NR H-3 M 3 D 6.40E-08 FGR11 NR NR NR NR I-129 M 3 D 2.76E-04 FGR11 NR NR NR NR Nb-94 M 3 D 7.14E-06 FGR11 NR NR NR NR Ni-59 M 3 D 2.10E-07 FGR11 NR NR NR NR Ni-63 M 3 D 5.77E-07 FGR11 NR NR NR NR


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Nd-144 M 3 D 1.51E-04 ICRP60 NR NR NR NR Np-237 M 3 D 4.44E-03 FGR11 NR NR NR NR Pa-231 M 3 D 1.06E-02 FGR11 NR NR NR NR Pb-210 M 3 D 5.37E-03 FGR11 NR NR NR NR Pb-210 M 3 D 1.90E-03 FGR11 NR NR NR NR Pu-238 M 3 D 3.20E-03 FGR11 NR NR NR NR Pu-239 M 3 D 3.54E-03 FGR11 NR NR NR NR Pu-240 M 3 D 3.54E-03 FGR11 NR NR NR NR Pu-241 M 3 D 6.84E-05 FGR11 NR NR NR NR Pu-242 M 3 D 3.36E-03 FGR11 NR NR NR NR Ra-226 M 3 D 1.32E-03 FGR11 NR NR NR NR Ra-228 M 3 D 1.44E-03 FGR11 NR NR NR NR Sm-148 M 3 D 1.58E-04 ICRP60 NR NR NR NR Sr-90 M 3 D 1.42E-04 FGR11 NR NR NR NR Tc-99 M 3 D 1.46E-06 FGR11 NR NR NR NR Th-228 M 3 D 3.96E-04 FGR11 NR NR NR NR Th-229 M 3 D 3.53E-03 FGR11 NR NR NR NR Th-230 M 3 D 5.48E-04 FGR11 NR NR NR NR Th-232 M 3 D 2.73E-03 FGR11 NR NR NR NR U-233 M 3 D 2.89E-04 FGR11 NR NR NR NR U-234 M 3 D 2.83E-04 FGR11 NR NR NR NR U-235 M 3 D 2.66E-04 FGR11 NR NR NR NR

U-236 M 3 D 2.69E-04 FGR11 NR NR NR NR U-238 M 3 D 2.55E-04 FGR11 NR NR NR NR

Plant Transfer Factors (pCi/g plant)/(pCi/g soil) Ac-227 P 1 D 1.0E-03 Median

NUREG/CR-6697, Att. C -6.91 1.1 0.001 0.999 1.0E-03

Ag-108m P 1 D 7.4E-03


-5.52 0.9 0.001 0.999

4.0E-03

Am-241 P

1

D 1.8E-03 75th Percentile NUREG/CR-6697, Att. C

-6.91 1.1 0.001 0.999

1.0E-03

Am-243 P 1 D 1.8E-03 75th Percentilef NUREG/CR-6697, Att. C

-6.91 0.9 0.001 0.999 1.0E-03

C-14 P 1 D 1.28E+0 75th Percentile NUREG/CR-6697, Att. C

-0.36 0.9 0.001 0.999 7.0E-01


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Cm-243 P 1 D 1.8E-03 75th Percentile NUREG/CR-6697, Att. C

-6.91 0.9 0.001 0.999 1.0E-03

Cm-244 P 1 D 1.8E-03 N75th Percentile UREG/CR-6697, Att. C

-6.91 0.9 0.001 0.999 1.0E-03

Co-60 P 1 D 1.4E-01 75th Percentile NUREG/CR-6697, Att. C

-2.53 0.9 0.001 0.999 7.9E-02


-3.22 1.0 0.001 0.999 4.0E-02


-3.22 1.0 0.001 0.999 4.0E-02

Eu-152 P 1 D 4E-03 75th Percentile NUREG/CR-6697, Att. C

-6.21 1.1 0.001 0.999 2.0E-03


-6.21 1.1 0.001 0.999 2.0E-03


-6.21 1.1 0.001 0.999 2.0E-03

Fe-55 P 1 D 1.9E-03 75th Percentile NUREG/CR-6697, Att. C

-6.91 0.9 0.001 0.999 1.0E-03


-6.21 1.1 0.001 0.999 2.0E-03

H-3 P 1 D 9.92E+0 75th Percentile NUREG/CR-6697, Att. C

1.57 1.1 0.001 0.999 4.8E+00

Nb-94 P 1 D 2.1E-02 75th Percentile NUREG/CR-6697, Att. C

-4.61 1.1 0.001 0.999 1.0E-02


-6.21 1.0 0.001 0.999 2.0E-03


-3.00 0.9 0.001 0.999 5.0E-02


-3.00 0.9 0.001 0.999 5.0E-02

Np-237 P 1 D 2.0E-02 Median NUREG/CR-6697, Att. C

-3.91 0.9 0.001 0.999 2.0E-02

Pa-231 P 1 D 1.0E-02 Median NUREG/CR-6697, Att. C

-4.61 1.1 0.001 0.999 1.0E-02

Pb-210 P 1 D 4.0E-03 Median NUREG/CR-6697, Att. C

-5.52 0.9 0.001 0.999 4.0E-03

Pm-147 P 1 D 4.2E-03 75th Percentile NUREG/CR-6697, Att. C

-6.21 1.1 0.001 0.999 2.0E-03

Po-210 P 1 D 1.0E-03 Median NUREG/CR-6697, Att. C

-6.90 0.9 0.001 0.999 1.0E-03

Pu-238 P 1 D 1.8E-03 75th Percentile NUREG/CR-6697, Att. C

-6.91 0.9 0.001 0.999 1.0E-03


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-6.91 0.9 0.001 0.999 1.0E-03


-6.91 0.9 0.001 0.999 1.0E-03


-6.91 0.9 0.001 0.999 1.0E-03

Ra-226 P 1 D 4.0E-02 Median NUREG/CR-6697, Att. C

-3.22 0.9 0.001 0.999 4.0E-02


-3.22 0.9 0.001 0.999 4.0E-02

Sb-125 P 1 D 1.9E-02 75th Percentile NUREG/CR-6697, Att. C

-4.61 1.0 0.001 0.999 1.0E-02


-6.21 1.1 0.001 0.999 2.0E-03


-6.21 1.1 0.001 0.999 2.0E-03


-1.20 1.0 0.001 0.999 3.0E-01

Tc-99 P 1 D 9.11E+00 75th Percentile NUREG/CR-6697, Att. C

1.61 0.9 0.001 0.999 5.0E+00

Te-125m P 1 D 1.0E-01 Median NUREG/CR-6697, Att. C

-2.30 1.0 0.001 0.999 1.0E-01

Th-228 P 1 D 1.0E-03 Median NUREG/CR-6697, Att. C

-6.91 0.9 0.001 0.999 1.0E-03


-6.91 0.9 0.001 0.999 1.0E-03


-6.91 0.9 0.001 0.999 1.0E-03


-6.91 0.9 0.001 0.999 1.0E-03

U-233 P 1 D 2.0E-03 Median NUREG/CR-6697, Att. C

-6.21 0.9 0.001 0.999 2.0E-03


-6.21 0.9 0.001 0.999 2.0E-03


-6.21 0.9 0.001 0.999 2.0E-03


-6.21 0.9 0.001 0.999 2.0E-03

Meat Transfer Factors (pCi/kg)/(pCi/d) Ac-227 P 2 D 2.0E-05 Median

NUREG/CR-6697, Att. C -10.82 1.0 0.001 0.999 2.0E-05

Ag-108m P 2 D 3.2E-03 75th Percentile NUREG/CR-6697, Att. C

-6.21 0.7 0.001 0.999 2.0E-03


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Am-241 P 2 D 5.7E-05 75th Percentile NUREG/CR-6697, Att. C

-9.90 0.2 0.001 0.999 5.0E-05


-9.90 0.2 0.001 0.999 5.0E-05

C-14 P 2 D 6.0E-02 75th Percentile NUREG/CR-6697, Att. C

-3.47 1.0 0.001 0.999 3.1E-02


-10.82 1.0 0.001 0.999 2.0E-05


-10.82 1.0 0.001 0.999 2.0E-05


-3.51 1.0 0.001 0.999 3.0E-02


-3.00 0.4 0.001 0.999 5.0E-02


-3.00 0.4 0.001 0.999 5.0E-02

Eu-152 P 2 D 4.0E-03 75th Percentile NUREG/CR-6697, Att. C

-6.21 1.0 0.001 0.999 2.0E-03


-6.21 1.0 0.001 0.999 2.0E-03


-6.21 1.0 0.001 0.999 2.0E-03


-3.51 0.4 0.001 0.999 3.0E-02


-6.21 1.0 0.001 0.999 2.0E-03

H-3 P 2 D 2.3E-02 75th Percentile NUREG/CR-6697, Att. C

-4.42 1.0 0.001 0.999 1.2E-02


-13.82 0.9 0.001 0.999 1.0E-06


-6.21 1.0 0.001 0.999 2.0E-03


-5.30 0.9 0.001 0.999 5.0E-03


-5.30 0.9 0.001 0.999 5.0E-03

Np-237 P 2 D 1.0E-03 Median NUREG/CR-6697, Att. C

-6.91 0.7 0.001 0.999 1.0E-03


-12.21 1.0 0.001 0.999 5.0E-06


-7.13 0.7 0.001 0.999 8.0E-04


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-6.21 1.0 0.001 0.999 2.0E-03


-5.30 0.7 0.001 0.999 5.0E-03


-9.21 0.2 0.001 0.999 1.0E-04


-9.21 0.2 0.001 0.999 1.0E-04


-9.21 0.2 0.001 0.999 1.0E-04


-9.21 0.2 0.001 0.999 1.0E-04


-6.91 0.7 0.001 0.999 1.0E-03

Ra-228 P 2 D 1.0E-03


-6.91 0.7 0.001 0.999 1.0E-03


-6.91 0.9 0.001 0.999 1.0E-03


-6.21 1.0 0.001 0.999 2.0E-03


-6.21 1.0 0.001 0.999 2.0E-03


-4.61 0.4 0.001 0.999 1.0E-02

Tc-99 P 2 D 1.6E-04 75th Percentile NUREG/CR-6697, Att. C

-9.21 0.7 0.001 0.999 1.0E-04

Te-125m P 2 D 7E-03 Median NUREG/CR-6697, Att. C

-4.96 0.9 0.001 0.999 7.0E-03

Th-228 P 2 D 1.0E-04


-9.21 1.0 0.001 0.999 1.0E-04


-9.21 1.0 0.001 0.999 1.0E-04


-9.21 1.0 0.001 0.999 1.0E-04


-9.21 1.0 0.001 0.999 1.0E-04


-7.13 0.7 0.001 0.999 8.0E-04


-7.13 0.7 0.001 0.999 8.0E-04


-7.13 0.7 0.001 0.999 8.0E-04


-7.13 0.7 0.001 0.999 8.0E-04


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Milk Transfer Factors (pCi/L)/(pCi/d) Ac-227 P 2 D 2.0E-06 Median

NUREG/CR-6697, Att. C -13.12 0.9 0.001 0.999 2.0E-06

Ag-108m P 2 D 9.5E-03 75th Percentile NUREG/CR-6697, Att. C

-5.12 0.7 0.001 0.999 5.5E-03


-13.12 0.7 0.001 0.999 2.0E-06

Am-243 P 2 D 3.2E-06 75th Percentilee NUREG/CR-6697, Att. C

-13.12 0.7 0.001 0.999 2.0E-06

C-14 P 2 D 2E-02 75th Percentile NUREG/CR-6697, Att. C

-4.4 0.9 0.001 0.999 1.2E-02


-13.12 0.9 0.001 0.999 2.0E-06


-13.12 0.9 0.001 0.999 2.0E-06


-6.21 0.7 0.001 0.999 2.0E-03


-4.61 0.5 0.001 0.999 1.0E-02


-4.61 0.5 0.001 0.999 1.0E-02


-9.72 0.9 0.001 0.999 6.0E-05


-9.72 0.9 0.001 0.999 6.0E-05


-9.72 0.9 0.001 0.999 6.0E-05


-8.11 0.7 0.001 0.999 3.0E-04


-9.72 0.9 0.001 0.999 6.0E-05

H-3 P 2 D 1.8E-02 75th Percentile NUREG/CR-6697, Att. C

-4.6 0.9 0.001 0.999 1.0E-02


-13.12 0.7 0.001 0.999 2.0E-06


-9.72 0.9 0.001 0.999 6.0E-05


-3.91 0.7 0.001 0.999 2.0E-02


-3.91 0.7 0.001 0.999 2.0E-02

Np-237 P 2 D 1E-05 Median NUREG/CR-6697, Att. C

-11.51 0.7 0.001 0.999 1.0E-05


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-12.21 0.9 0.001 0.999 5.0E-06


-8.11 0.9 0.001 0.999 3.0E-04


-9.72 0.9 0.001 0.999 6.0E-05


-7.82 0.7 0.001 0.999 4.0E-04


-13.82 0.5 0.001 0.999 1.0E-06

Pu-239 P 2 D 1.37E-06 75th Percentilee NUREG/CR-6697, Att. C

-13.82 0.5 0.001 0.999 1.0E-06

Pu-240 P 2 D 1.37E-06 75th Percentilee NUREG/CR-6697, Att. C

-13.82 0.5 0.001 0.999 1.0E-06


-13.82 0.5 0.001 0.999 1.0E-06


-6.91 0.5 0.001 0.999 1.0E-03


-6.91 0.5 0.001 0.999 1.0E-03


-9.72 0.9 0.001 0.999 6.0E-05


-9.72 0.9 0.001 0.999 6.0E-05


-9.72 0.9 0.001 0.999 6.0E-05


-6.21 0.5 0.001 0.999 2.0E-03

Tc-99 P 2 D 1.6E-03 75th Percentile NUREG/CR-6697, Att. C

-6.91 0.7 0.001 0.999 1.0E-03

Te-125m P 2 D 5.0E-04 Median NUREG/CR-6697, Att. C

-7.60 0.6 0.001 0.999 5.0E-04


-12.21 0.9 0.001 0.999 5.0E-06


-12.21 0.9 0.001 0.999 5.0E-06


-12.21 0.9 0.001 0.999 5.0E-06


-12.21 0.9 0.001 0.999 5.0E-06


-7.82 0.6 0.001 0.999 4.0E-04


-7.82 0.6 0.001 0.999 4.0E-04


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-7.82 0.6 0.001 0.999 4.0E-04


-7.82 0.6 0.001 0.999 4.0E-04

Bioaccumulation Factors for Fish ((pCi/kg)/(pCi/L)) Ac-227 P 2 D Inactive NUREG/CR-6697, Att. C 2.7 1.1 1.5E+01 Am-241 P 2 D Inactive NUREG/CR-6697, Att. C 3.4 1.1 3.0E+01

Am-243 P 2 D Inactive NUREG/CR-6697, Att. C 3.4 1.1 3.0E+01

C-14 P 2 D Inactive NUREG/CR-6697, Att. C 10.8 1.1 4.9E+04

Cm-243 P 2 D Inactive NUREG/CR-6697, Att. C 3.4 1.1 3.0E+01




Co-60 P 2 D Inactive NUREG/CR-6697, Att. C 5.7 1.1 3.0E+02

Cs-137 P 2 D Inactive NUREG/CR-6697, Att. C 7.6 0.7 2.0E+03

Eu-152 P 2 D Inactive NUREG/CR-6697, Att. C 3.9 1.1 4.9E+01

Eu-154 P 2 D Inactive NUREG/CR-6697, Att. C 3.9 1.1 4.9E+01

Gd-152 P 2 D Inactive NUREG/CR-6697, Att. C 3.2 1.1 2.5E+01

H-3 P 2 D Inactive NUREG/CR-6697, Att. C 0 0.1 1.0E+00

I-129 P 2 D Inactive NUREG/CR-6697, Att. C 3.7 1.1 4.0E+01

Nb-94 P 2 D Inactive NUREG/CR-6697, Att. C 5.7 1.1 3.0E+02

Ni-59 P 2 D Inactive NUREG/CR-6697, Att. C 4.6 1.1 9.9E+01

Ni-63 P 2 D Inactive NUREG/CR-6697, Att. C 4.6 1.1 9.9E+01

Np-237 P 2 D Inactive NUREG/CR-6697, Att. C 3.4 1.1 3.0E+01


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Pa-231 P 2 D Inactive NUREG/CR-6697, Att. C 2.3 1.1 9.9E+00

Po-210 P 2 D Inactive NUREG/CR-6697, Att. C 4.6 1.1 1.0E+01

Pb-210 P 2 D Inactive NUREG/CR-6697, Att. C 5.7 1.1 3.0E+02

Pu-238 P 2 D Inactive NUREG/CR-6697, Att. C 3.4 1.1 3.0E+01





Ra-226 P 2 D Inactive NUREG/CR-6697, Att. C 3.9 1.1 4.9E+01

Ra-228 P 2 D Inactive NUREG/CR-6697, Att. C 3.9 1.1 4.9E+01

Sr-90 P 2 D Inactive NUREG/CR-6697, Att. C 4.1 1.1 6.0E+01

Tc-99 P 2 D Inactive NUREG/CR-6697, Att. C 3 1.1 2.0E+01

Th-228 P 2 D Inactive NUREG/CR-6697, Att. C 4.6 1.1 9.9E+01




U-233 P 2 D Inactive NUREG/CR-6697, Att. C 2.3 1.1 1.0E+01





Bioaccumulation Factors for Crustacea/ Mollusks ((pCi/kg)/(pCi/L))


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Ac-227 P 3 D Inactive RESRAD User’s Manual Appendix D

NR NR NR NR

Am-241 P 3 D Inactive RESRAD User’s Manual Appendix D

NR NR NR NR

Am-243 P 3 D Inactive RESRAD User’s Manual Appendix D

NR NR NR NR

C-14 P 3 D Inactive RESRAD User’s Manual Appendix D

NR NR NR NR

Cm-243 P 3 D Inactive RESRAD User’s Manual Appendix D

NR NR NR NR


NR NR NR NR


NR NR NR NR


NR NR NR NR

Co-60 P 3 D Inactive RESRAD User’s Manual Appendix D

NR NR NR NR

Cs-137 P 3 D Inactive RESRAD User’s Manual Appendix D

NR NR NR NR

Eu-152 P 3 D Inactive RESRAD User’s Manual Appendix D

NR NR NR NR

Eu-154 P 3 D Inactive RESRAD User’s Manual Appendix D

NR NR NR NR

Gd-152 P 3 D Inactive RESRAD User’s Manual Appendix D

NR NR NR NR

H-3 P 3 D Inactive RESRAD User’s Manual Appendix D

NR NR NR NR

I-129 P 3 D Inactive RESRAD User’s Manual Appendix D

NR NR NR NR

Nb-94 P 3 D Inactive RESRAD User’s Manual Appendix D

NR NR NR NR

Ni-59 P 3 D Inactive RESRAD User’s Manual Appendix D

NR NR NR NR

Ni-63 P 3 D Inactive RESRAD User’s Manual Appendix D

NR NR NR NR

Np-237 P 3 D Inactive RESRAD User’s Manual Appendix D

NR NR NR NR

Pa-231 P 3 D Inactive RESRAD User’s Manual Appendix D

NR NR NR NR

Pb-210 P 3 D Inactive RESRAD User’s Manual Appendix D

NR NR NR NR


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Po-210 P S D Inactive RESRAD User’s Manual Appendix D

Pu-238 P 3 D Inactive RESRAD User’s Manual Appendix D

NR NR NR NR


NR NR NR NR


NR NR NR NR


NR NR NR NR


NR NR NR NR

Ra-226 P 3 D Inactive RESRAD User’s Manual Appendix D

NR NR NR NR

Ra-228 P 3 D Inactive RESRAD User’s Manual Appendix D

NR NR NR NR

Sr-90 P 3 D Inactive RESRAD User’s Manual Appendix D

NR NR NR NR

Tc-99 P 3 D Inactive RESRAD User’s Manual Appendix D

NR NR NR NR

Th-228 P 3 D Inactive RESRAD User’s Manual Appendix D

NR NR NR NR


NR NR NR NR


NR NR NR NR


NR NR NR NR

U-233 P 3 D Inactive RESRAD User’s Manual Appendix D

NR NR NR NR


NR NR NR NR


NR NR NR NR


NR NR NR NR


NR NR NR NR

Graphics Parameters Number of points 32 RESRAD Default NR NR NR NR Spacing log RESRAD Default NR NR NR NR Time integration parameters


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Maximum number of points for dose 17 RESRAD Default NR NR NR NR Notes: a P = physical, B = behavioral, M = metabolic; (see NUREG/CR-6697, Attachment B, Table 4.) b 1 = high-priority parameter, 2 = medium-priority parameter, 3 = low-priority parameter (see NUREG/CR-6697, Attachment B, Table 4.1) c D = deterministic, S = stochastic d Distributions Statistical Parameters: Lognormal-n: 1= mean, 2 = standard deviation Bounded lognormal-n: 1= mean, 2 = standard deviation, 3 = minimum, 4 = maximum Truncated lognormal-n: 1= mean, 2 = standard deviation, 3 = lower quantile, 4 = upper quantile Bounded normal: 1 = mean, 2 = standard deviation, 3 = minimum, 4 = maximum Beta: 1 = minimum, 2 = maximum, 3 = P-value, 4 = Q-value Triangular: 1 = minimum, 2 = mode, 3 = maximum Uniform: 1 = minimum, 2 = maximum e Sm-148 and ND-144 not listed in RESRAD FGR 11 DCF file


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ATTACHMENT 12

RESRAD Summary Report and Concentration Report

for BFM Analysis of Initial Suite of Radionuclides



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ATTACHMENT 13

RESRAD Summary Reports for Soil Area Factors to Support Calculation

of BFM Drilling Spoils Dose Factors for Initial Suite of Radionuclides



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ATTACHMENT 14

RESRAD Summary Report for Soil Analysis of Initial Suite of Radionuclides

See TSD 14-010 Attachment 14 (1 file)


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ATTACHMENT 15

Clean Concrete Fill Dose Assessment at Detection Limit


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Dose Assessment Clean Concrete Fill at Detection Limit

Inputs to Calculation

Turbine Clean Clean Concrete Fill Surface Area and Volume (Reference: 6/29/16 email from Don Roth)

Surface Area of Turbine Building Clean Concrete to be Used as Fill

U1 SURFACE AREA

(SQ. FT.)

U2 SURFACE AREA (SQ.

FT.)

EL 592 SLABS 61,164 61,164

EL 609 & 617 SLABS 52,848 52,848

EL 630 SLABS 14,654 14,654

EL 642 SLABS 83,420 83,420

EL 592 BEAMS 3,800 3,800

TURBINE FOUNDATION 59,981 59,981

PERIMETER WALLS 1,728 1,728

MASONRY WALLS 56,570 56,570

TOTALS 334,165 334,165

Volume of Clean Turbine Concrete to be Used as Fill

Volume 21,525 cubic yard

Volume 1.65E+04 m3


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Containmant Dimensions (cylinder)

Diameter Exterior 147.00 ft

Diameter Interior 140.00 ft

Cylinder Height 171.50 ft

Thickness 3.50 ft

Containment Dimensions (Roof)

Dome Radius Exterior 20.17 ft

Dome Radius Interior 17.50 ft

Thickness 2.67 ft

Conversion Factor 929.03 cm2/ft2

Conversion Factor 28316.80 cm3/ft3

Containment Cylinder Surface Area and Volume

Area of Outer Surface 7.92E+04 ft2 7.36E+07 cm2

Area of Inner Surface 7.54E+04 ft2 7.01E+07 cm2

Volume of Concrete Fill 2.71E+05 ft3 7.66E+09 cm3

Containment Roof Surface Area and Volume

Area of Outer Surface 2.56E+03 ft2 2.37E+06 cm2

Area of Inner Surface 1.92E+03 ft2 1.79E+06 cm2

Volume of Concrete Fill 5.96E+03 ft3 1.69E+08 cm3

Containment Total Volume (one unit) 7.83E+03 m3

Total Clean Concrete Fill Volume - Containment plus Turbine 3.21E+04 m3

Containment Clean Concrete Fill Surface Area and Volume (Drawing B-210, Reactor Building

Containment Structural Arrangement Zion Station Unit No. 1&2 Commonwealth Edison Co. Chicago

Illinios)


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Conversion Factors and Assumptions

Conversion Factor 0.0929 m2/ft2

Conversion Factor 1.0000E+06 cm3 per m3

Conversion Factor 1.000E+04 cm2 per m2

concrete density 2.35 g/cm3

Non-detect Maximum MDC 5000 dpm/100 cm2

Conversion factor 2.2 dpm/pCi

Conversion Factor 1.00E-09 mCi/pCi

conversion Factor 7.65E-01 m3/yd3

Conversion Factor 7.65E+05 cm3/yd3

Calculation

Total Inventory Gamma in Turbine Clean Conrete Debris at MDC 1.41E+01 mCi

Total Inventory Gamma in Containment Clean Conrete Debris at MDC 6.72E+00 mCi

Inventory per m3 of fill

Turbine 8.57E-04 mCi/m3

Containment 4.29E-04 mCi/m3

Basement Fill Volume (m3)1 gamma inventory (mCi)

Unit 1 Containment Building1.21E+04 1.04E+01

Unit 2 Containment Building1.21E+04 1.04E+01

Auxiliary Building 3.76E+04 3.22E+01

Turbine Building 4.26E+04 3.65E+01

Crib House and Forebay 3.92E+04 3.36E+01

WWTF 1.01E+03 8.66E-01

Spent Fuel Pool and Transfer Canal1.04E+03 8.92E-01

Note 1: Fil l volumes from TSD 14-021 Revision 1, Table 23


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Insignificant Contributor (IC) Dose Adjustement Factor:

Assigned IC Dose

Percentage

IC Dose

Adjustment

Factor

Auxiliary 5.00% 1.05

Containment 10.00% 1.11

Basements other than Auxiliary and Containment 5.00% 1.05

Basement Dose Factors (adjusted for insignificant dose contribution)

Auxiliary ContainmentSpent Fuel Pool/

Transfer Canals1 Turbine

Crib House/

Forebay WWTF

(mrem/y per mCi) (mrem/y per mCi) (mrem/y per mCi)

(mrem/y per

mCi)

(mrem/y per

mCi)

(mrem/y per

mCi)

Co-60 1.14E-02 4.44E-02 4.44E-02 1.30E-02 2.46E-02 7.60E-01

Cs-134 1.59E-02 2.17E-01 2.17E-01 5.52E-02 6.16E-02 9.17E+00

Cs-137 2.98E-02 1.65E-01 1.65E-01 4.17E-02 4.43E-02 7.22E+00

Eu-152 5.35E-03 1.92E-02 1.92E-02 5.65E-03 1.10E-02 2.86E-01

Eu-154 5.93E-03 2.19E-02 2.19E-02 6.38E-03 1.21E-02 3.74E-01

H-3 6.21E-03 2.72E-02 2.72E-02 6.80E-03 6.75E-03 1.23E+00

Ni-63 2.86E-04 1.61E-03 1.61E-03 4.01E-04 4.00E-04 7.31E-02

Sr-90 3.29E-01 4.51E+00 4.51E+00 1.13E+00 1.12E+00 2.06E+02

Note 1: SFP/Transfer Canal Dose Factors set equal to Containment to account for groundwater pathway

Maximum Basement Activity

mCi mCi mCi mCi mCi mCi

Co-60 2.20E+03 5.63E+02 5.63E+02 1.93E+03 1.01E+03 3.29E+01

Cs-134 1.57E+03 1.15E+02 1.15E+02 4.53E+02 4.06E+02 2.73E+00

Cs-137 8.40E+02 1.52E+02 1.52E+02 6.00E+02 5.64E+02 3.46E+00

Eu-152 4.68E+03 1.30E+03 1.30E+03 4.43E+03 2.26E+03 8.76E+01

Eu-154 4.22E+03 1.14E+03 1.14E+03 3.92E+03 2.06E+03 6.69E+01

H-3 4.03E+03 9.20E+02 9.20E+02 3.68E+03 3.71E+03 2.02E+01

Ni-63 8.75E+04 1.56E+04 1.56E+04 6.23E+04 6.25E+04 3.42E+02

Sr-90 7.59E+01 5.54E+00 5.54E+00 2.21E+01 2.22E+01 1.21E-01


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ROC Mixture for Containment (Reference: TSD 14-019, Revision 1 Table 20)

Perent Activity Ratio to Cs-137

Co-60 4.675% 6.92E-02 Perent Activity Ratio to Cs-137

Cs-134 0.008% 1.21E-04 Co-60 0.908% 1.22E-02

Cs-137 67.582% 1.00E+00 Cs-134 0.010% 1.38E-04

Eu-152 0.436% 6.45E-03 Cs-137 74.597% 1.00E+00

Eu-154 0.058% 8.57E-04 Ni-63 23.480% 3.15E-01

H-3 0.074% 1.10E-03 Sr-90 0.051% 6.83E-04

Ni-63 26.275% 3.89E-01 99.046%

Sr-90 0.027% 4.05E-04

ROC Total Percent Activity 99.136% Insignificant Contributor0.954%

Total 100.00%

Insignificant Contributor 0.864%

Total 100.000%

Clean Concrete Hypothetical Dose Containment ROC Mixture


Transfer Canals Turbine

Crib House/

Forebay WWTF


Co-60 2.54E-02 3.19E-02 2.74E-03 3.27E-02 5.73E-02 4.55E-02

Cs-134 6.18E-05 2.71E-04 2.33E-05 2.43E-04 2.50E-04 9.57E-04

Cs-137 9.60E-01 1.71E+00 1.47E-01 1.52E+00 1.49E+00 6.26E+00

Eu-152 1.11E-03 1.28E-03 1.10E-04 1.33E-03 2.40E-03 1.60E-03

Eu-154 1.64E-04 1.95E-04 1.67E-05 2.00E-04 3.49E-04 2.77E-04

H-3 2.19E-04 3.09E-04 2.65E-05 2.72E-04 2.48E-04 1.17E-03

Ni-63 3.58E-03 6.48E-03 5.57E-04 5.70E-03 5.23E-03 2.46E-02

Sr-90 4.30E-03 1.90E-02 1.63E-03 1.67E-02 1.53E-02 7.22E-02

Total 9.94E-01 1.77E+00 1.52E-01 1.58E+00 1.57E+00 6.40E+00

ROC Total

Percent

ROC Mixture for Auxiliary Basement

(Reference: TSD 14-019, Revision 1 Table 20)


of 165

Clean Concrete Hypothetical Dose Auxiliary ROC Mixture


Transfer Canals Turbine

Crib House/

Forebay WWTF


Co-60 4.47E-03 5.61E-03 4.82E-04 5.76E-03 1.01E-02 8.00E-03

Cs-134 7.08E-05 3.11E-04 2.67E-05 2.79E-04 2.86E-04 1.10E-03

Cs-137 9.60E-01 1.71E+00 1.47E-01 1.52E+00 1.49E+00 6.26E+00

Ni-63 2.90E-03 5.25E-03 4.51E-04 4.61E-03 4.23E-03 1.99E-02

Sr-90 7.25E-03 3.20E-02 2.75E-03 2.82E-02 2.58E-02 1.22E-01

Total 9.74E-01 1.75E+00 1.51E-01 1.56E+00 1.53E+00 6.41E+00


of 165

ATTACHMENT 16

Basement Surface DCGL Calculation


of 165

Calculation of Basement Surface DCGLs (pCi/m2)


Conversion Factor 1.00E+09 pCi/mCi

Dose Limit 25 mrem/yr




Auxiliary Containment

Spent Fuel

Pool/Transfer

Canal

TurbineCrib House/

Forebay WWTF

(mrem/y per mCi)

(mrem/y per

mCi)

(mrem/y per

mCi)

(mrem/y per

mCi)

(mrem/y per

mCi)

(mrem/y per

mCi)

Co-60 1.00E-04 1.14E-02 0.00E+00 2.87E-03 2.85E-03 5.21E-01

Cs-134 9.27E-03 1.98E-01 0.00E+00 4.94E-02 4.91E-02 9.03E+00

Cs-137 2.64E-02 1.57E-01 0.00E+00 3.92E-02 3.90E-02 7.17E+00

Eu-152 5.96E-05 3.87E-03 0.00E+00 9.69E-04 9.64E-04 1.75E-01

Eu-154 6.77E-05 5.62E-03 0.00E+00 1.41E-03 1.40E-03 2.56E-01

H-3 6.21E-03 2.72E-02 0.00E+00 6.80E-03 6.75E-03 1.23E+00

Ni-63 2.86E-04 1.61E-03 0.00E+00 4.01E-04 4.00E-04 7.31E-02

Sr-90 3.29E-01 4.51E+00 0.00E+00 1.13E+00 1.12E+00 2.06E+02


of 165

BFM Drilling Spoils Dose Factors (Not adjusted for insignificant contributor dose)

Auxiliary1 Containment1

Spent Fuel

Pool/Transfer

Canal

Turbine1Crib House/

Forebay1 WWTF1

(mrem/y per mCi)

(mrem/y per

mCi)

(mrem/y per

mCi)

(mrem/y per

mCi)

(mrem/y per

mCi)

(mrem/y per

mCi)

Co-60 1.07E-02 2.97E-02 1.58E-01 9.58E-03 2.07E-02 2.26E-01

Cs-134 6.29E-03 1.72E-02 9.41E-02 5.54E-03 1.19E-02 1.31E-01

Cs-137 3.22E-03 7.27E-03 4.83E-02 2.35E-03 5.05E-03 5.57E-02

Eu-152 5.02E-03 1.38E-02 7.46E-02 4.45E-03 9.58E-03 1.05E-01

Eu-154 5.57E-03 1.46E-02 8.25E-02 4.73E-03 1.02E-02 1.12E-01

H-3 1.45E-09 1.45E-09 1.45E-09 1.45E-09 1.45E-09 1.45E-09

Ni-63 3.23E-08 5.61E-08 3.78E-07 1.86E-08 4.81E-08 4.16E-07

Sr-90 6.26E-05 1.39E-04 7.60E-04 4.61E-05 1.16E-04 1.04E-03

Note 1: BFM DFs for H-3 were reported as zero in TSD 14-019, Table 11. A non-zero value is required

for the DCGL calculation. The lowest non-zero DF reported for all nuclides was H-3 in the SFP which was conservatively applied

as the H-3 DF for all Basements.


of 165

Basement Surface Areas

Survey Unit

Wall and Floor

Surface Area

m2

Auxiliary Building 542

Floor and All Walls 6503

Containment

Basement 2759

SFP/Transfer Canal3 723

Turbine Building

Basement 14864

Crib House/Forebay1,2 13842

WWTF 1124

Reference: TSD 14-014, Table 64

Note 1: Crib House/Forebay Volume listed in TSD 14-009, Revision 1 adjusted lower by factor of 0.86

due to revision of decommissioning approach entailing leaving walls

(Reference: TSD 14-014 Revision 1, Table 38)

Correction factor of 1/0.86 already applied to BFM Dose Factors in "ROC BFM Dose Factors" Tab

Note 2: Revised Crib House Forebay Surface Area due to leaving interior walls

Reference: TSD 14-014 Revision 1, Table 64

Note 3: Revised SFP/Transfer Tunnel Surface Area in TSD 14-014, Revision 1

Reference: TSD 14-014 Revision 1, Table 64

Surface Area Surface Area

ft2 m2

Circ Water Discharge

Tunnel1 (2) 52400 4868

Circ Discharge Piping3 11570 1075

Circ Water Intake Pipe2

(2)47491 4412

Buttress Pits/Tendon

Tunnels4 20626 1916

Note 1: Reference TSD 14-014, Table 64. Area includes Unit 1 and Unit 2 Discharge Tunnels

Note 2: TSD 14-016 Table 46. Area includes Unit 1 and Unit 2 Intake Pipes

Note 3: TSD 14-016, Table 50

Note 4: TSD 14-014, Revision 2, Tables 60 & 63, and TSD 13-005 Rev 1 Table 15


of 165

Summation Surface Area Used for Basement DCGL Calulation

Basement Total SA (m2)

Containment 3482

Auxiliary 7226

Turbine 27135

Crib House/Forebay 18254

SFP/Transfer Canal 723SFP/Transfer Canal

Structure Areas Included in DCGL

Calculation

Containment + SFP/Transfer Canal

Auxiliary + SFP/Transfer Canal

Turbine + Circulating Water Discharge

Tunnels (2) + Circulating Water Intake

Pipe (2) + Circ Discharge Pipe +

Buttress Pits/Tendon Tunnels

Crib House/Forebay + Circulating

Water Intake Pipe (2)


of 165

BFM Groundwater DCGLs (Not Adjusted for Insignificant Contributor Dose)


Spent Fuel

Pool/Transfer

Canal

TurbineCrib House/

Forebay WWTF

pCi/m2 pCi/m2 pCi/m2 pCi/m2 pCi/m2 pCi/m2

Co-60 3.46E+10 6.28E+08 NA 3.21E+08 4.81E+08 4.27E+07Cs-134 3.73E+08 3.63E+07 NA 1.86E+07 2.79E+07 2.46E+06

Cs-137 1.31E+08 4.58E+07 NA 2.35E+07 3.51E+07 3.10E+06

Eu-152 5.81E+10 1.85E+09 NA 9.51E+08 1.42E+09 1.27E+08Eu-154 5.11E+10 1.28E+09 NA 6.55E+08 9.78E+08 8.68E+07

H-3 5.58E+08 2.64E+08 NA 1.36E+08 2.03E+08 1.80E+07

Ni-63 1.21E+10 4.47E+09 NA 2.30E+09 3.42E+09 3.04E+08

Sr-90 1.05E+07 1.59E+06 NA 8.14E+05 1.22E+06 1.08E+05

BFM Drilling Spoils DCGLs (Not Adjusted for Insignificant Contributor Dose)


Spent Fuel

Pool/Transfer

Canal

TurbineCrib House/

Forebay WWTF


Co-60 3.23E+08 2.42E+08 2.19E+08 9.61E+07 6.61E+07 9.83E+07

Cs-134 5.50E+08 4.18E+08 3.67E+08 1.66E+08 1.15E+08 1.69E+08

Cs-137 1.07E+09 9.88E+08 7.16E+08 3.93E+08 2.71E+08 4.00E+08

Eu-152 6.89E+08 5.21E+08 4.64E+08 2.07E+08 1.43E+08 2.12E+08

Eu-154 6.22E+08 4.90E+08 4.19E+08 1.95E+08 1.34E+08 1.99E+08

H-3 2.38E+15 4.94E+15 2.38E+16 6.34E+14 9.42E+14 1.53E+16

Ni-63 1.07E+14 1.28E+14 9.15E+13 4.96E+13 2.85E+13 5.34E+13

Sr-90 5.53E+10 5.15E+10 4.55E+10 2.00E+10 1.18E+10 2.14E+10


of 165

Basement DCGLB (Not Adjusted for Insignificant Contributor Dose)


Spent Fuel

Pool/Transfer

Canal1

TurbineCrib House/

Forebay WWTF


Co-60 3.20E+08 1.75E+08 1.75E+08 7.40E+07 5.81E+07 2.97E+07

Cs-134 2.22E+08 3.34E+07 3.34E+07 1.68E+07 2.24E+07 2.43E+06

Cs-137 1.17E+08 4.38E+07 4.38E+07 2.22E+07 3.11E+07 3.08E+06

Eu-152 6.81E+08 4.07E+08 4.07E+08 1.70E+08 1.30E+08 7.94E+07Eu-154 6.14E+08 3.54E+08 3.54E+08 1.50E+08 1.18E+08 6.04E+07

H-3 5.58E+08 2.64E+08 2.64E+08 1.36E+08 2.03E+08 1.80E+07

Ni-63 1.21E+10 4.47E+09 4.47E+09 2.30E+09 3.42E+09 3.04E+08

Sr-90 1.05E+07 1.59E+06 1.59E+06 8.14E+05 1.22E+06 1.08E+05

Note 1: DCGLB for SFP/Transfer Canal equal to the lower of the Auxiliary or Containment DCGL which was Containment for all ROC


of 165

Insignificant Contributor Dose Adjustment Factor

Assigned IC

Dose

Percentage

IC Dose

Adjustment

Factor




Adjusted BFM Groundwater DCGLs (Adjusted for Insignificant Contributor Dose)


Spent Fuel

Pool/Transfer

Canal

TurbineCrib House/

Forebay WWTF


Co-60 3.28E+10 5.65E+08 NA 3.05E+08 4.57E+08 4.05E+07

Cs-134 3.55E+08 3.27E+07 NA 1.77E+07 2.65E+07 2.34E+06

Cs-137 1.25E+08 4.12E+07 NA 2.23E+07 3.34E+07 2.95E+06

Eu-152 5.52E+10 1.67E+09 NA 9.03E+08 1.35E+09 1.21E+08

Eu-154 4.85E+10 1.15E+09 NA 6.22E+08 9.29E+08 8.24E+07

H-3 5.30E+08 2.38E+08 NA 1.29E+08 1.93E+08 1.71E+07

Ni-63 1.15E+10 4.02E+09 NA 2.18E+09 3.25E+09 2.89E+08

Sr-90 9.98E+06 1.43E+06 NA 7.74E+05 1.16E+06 1.03E+05


of 165

Adjusted BFM Drilling Spoils DCGLs (Adjusted for Insignificant Contributor Dose)


Spent Fuel

Pool/Transfer

Canal

TurbineCrib House/

Forebay WWTF


Co-60 3.07E+08 2.18E+08 2.08E+08 9.13E+07 6.28E+07 9.34E+07

Cs-134 5.23E+08 3.77E+08 3.49E+08 1.58E+08 1.09E+08 1.61E+08

Cs-137 1.02E+09 8.89E+08 6.80E+08 3.73E+08 2.58E+08 3.80E+08

Eu-152 6.54E+08 4.69E+08 4.41E+08 1.97E+08 1.36E+08 2.01E+08

Eu-154 5.91E+08 4.41E+08 3.98E+08 1.85E+08 1.28E+08 1.89E+08

H-3 2.26E+15 4.45E+15 2.26E+16 6.02E+14 8.95E+14 1.45E+16

Ni-63 1.02E+14 1.15E+14 8.69E+13 4.71E+13 2.70E+13 5.08E+13

Sr-90 5.25E+10 4.63E+10 4.32E+10 1.90E+10 1.12E+10 2.03E+10

Adjusted Basement DCGLB (Adjusted for Insignificant Contributor Dose)


Spent Fuel

Pool/Transfer

Canal1

TurbineCrib House/

Forebay WWTF


Co-60 3.04E+08 1.57E+08 1.57E+08 7.03E+07 5.52E+07 2.83E+07

Cs-134 2.11E+08 3.01E+07 3.01E+07 1.59E+07 2.13E+07 2.31E+06

Cs-137 1.11E+08 3.94E+07 3.94E+07 2.11E+07 2.96E+07 2.93E+06

Eu-152 6.47E+08 3.66E+08 3.66E+08 1.62E+08 1.23E+08 7.55E+07

Eu-154 5.83E+08 3.19E+08 3.19E+08 1.43E+08 1.12E+08 5.74E+07

H-3 5.30E+08 2.38E+08 2.38E+08 1.29E+08 1.93E+08 1.71E+07

Ni-63 1.15E+10 4.02E+09 4.02E+09 2.18E+09 3.25E+09 2.89E+08

Sr-90 9.98E+06 1.43E+06 1.43E+06 7.74E+05 1.16E+06 1.03E+05

Note 1: DCGL for SFP/Transfer Canal equal to the lower of the Auxiliary or Containment DCGL which was Containment for all ROC.


of 165

Attachment 17

BFM Drilling Spoils Scenario Area Factor


of 165

Drilling Spoils Area Factor Calculation for Class 1 Survey Units


Adjusted BFM Drilling Spoils DCGL (Adjusted for Insignificant Contributor Dose)

Auxiliary

Spent Fuel

Pool/Transfer

Canal Containment

pCi/m2 pCi/m2 pCi/m2

Co-60 3.07E+08 2.08E+08 2.18E+08

Cs-134 5.23E+08 3.49E+08 3.77E+08

Cs-137 1.02E+09 6.80E+08 8.89E+08

Eu-152 6.54E+08 4.41E+08 4.69E+08

Eu-154 5.91E+08 3.98E+08 4.41E+08

H-3 2.26E+15 2.26E+16 4.45E+15

Ni-63 1.02E+14 8.69E+13 1.15E+14

Sr-90 5.25E+10 4.32E+10 4.63E+10

Adjusted Basment DCGL (Adjusted for Insignificant Contributor Dose)

Auxiliary

Spent Fuel

Pool/Transfer

Canal Containment


Co-60 3.04E+08 1.57E+08 1.57E+08

Cs-134 2.11E+08 3.01E+07 3.01E+07

Cs-137 1.11E+08 3.94E+07 3.94E+07

Eu-152 6.47E+08 3.66E+08 3.66E+08

Eu-154 5.83E+08 3.19E+08 3.19E+08

H-3 5.30E+08 2.38E+08 2.38E+08

Ni-63 1.15E+10 4.02E+09 4.02E+09

Sr-90 9.98E+06 1.43E+06 1.43E+06


of 165


Floor Surface Area and Total Surface Area used for DCGL Calculation

Floor Area

(ft2)

Floor Area1

(m2)

Total Area Used for

DCGL Calculation

(m2)

Auxiliary Basement 27149 2522 7226

SFP/Transfer Canal 2448 227 723

Containment 16489 1532 3482

Note 1: Reference TSD 14-021 , Revision 1, Table 2

Concentration Corresponding to 25 mrem/yr for Drilling Spoils Only

Assuming all Activity in Floor (Adjusted for Insignificant Contributor)

Auxiliary

Spent Fuel

Pool/Transfer

Canal Containment


Co-60 8.78E+08 6.60E+08 4.95E+08

Cs-134 1.50E+09 1.11E+09 8.56E+08

Cs-137 2.93E+09 2.16E+09 2.02E+09

Eu-152 1.88E+09 1.40E+09 1.07E+09

Eu-154 1.69E+09 1.27E+09 1.00E+09

H-3 6.48E+15 7.18E+16 1.01E+16

Ni-63 2.91E+14 2.76E+14 2.62E+14

Sr-90 1.50E+11 1.37E+11 1.05E+11

Drilling Spoils Area Factors

Auxiliary

Spent Fuel

Pool/Transfer

Canal Containment

Co-60 2.89E+00 4.20E+00 3.15E+00

Cs-134 7.09E+00 3.69E+01 2.84E+01

Cs-137 2.63E+01 5.49E+01 5.13E+01

Eu-152 2.90E+00 3.82E+00 2.91E+00

Eu-154 2.90E+00 3.97E+00 3.15E+00

H-3 1.22E+07 3.02E+08 4.25E+07

Ni-63 2.53E+04 6.87E+04 6.51E+04

Sr-90 1.51E+04 9.60E+04 7.36E+04


of 165

Attachment 18

Initial Suite Radionuclides DCGL Calculation


of 165

BFM Dose Factors for Initial Suite Radionculides (not adjusted for insignificant contributor dose fraction)

BFM Dose Factors for Initial Suite (Reference:TSD 14-019, Table 12).

Radionuclide

Aux mrem/year

per mCi

Containment

mrem/year per

mCi

Spent Fuel

mrem/year per

mCi

Turbine

mrem/year per

mCi

Crib House

mrem/year per

mCi

WWTF

mrem/year per

mCi

Ag-108m 1.78E-02 4.61E-02 1.85E-01 1.30E-02 1.77E-02 1.32E+00

Am-241 2.58E-01 1.15E+00 3.06E-03 2.86E-01 2.45E-01 5.22E+01

Am-243 2.64E-01 1.15E+00 2.51E-02 2.86E-01 2.46E-01 5.22E+01

C-14 6.49E-02 2.84E-01 3.72E-06 7.09E-02 6.08E-02 1.29E+01

Cm-243 2.69E-02 1.57E-01 1.56E-02 3.94E-02 3.43E-02 7.09E+00

Cm-244 1.74E-02 1.24E-01 7.09E-04 3.11E-02 2.67E-02 5.66E+00

Co-60 1.08E-02 4.11E-02 1.58E-01 1.25E-02 2.03E-02 7.48E-01

Cs-134 1.56E-02 2.15E-01 9.41E-02 5.49E-02 5.25E-02 9.16E+00

Cs-137 2.96E-02 1.64E-01 4.83E-02 4.16E-02 3.79E-02 7.22E+00

Eu-152 5.08E-03 1.76E-02 7.46E-02 5.41E-03 9.07E-03 2.81E-01

Eu-154 5.63E-03 2.03E-02 8.25E-02 6.13E-03 9.97E-03 3.68E-01

Eu-155 2.91E-04 1.37E-03 4.55E-03 3.77E-04 4.64E-04 4.36E-02

Fe-55 8.09E-07 1.51E-05 3.71E-08 3.78E-06 3.23E-06 6.85E-04

H-3 6.21E-03 2.72E-02 1.45E-09 6.80E-03 5.80E-03 1.23E+00

Nb-94 1.41E-02 2.86E-02 1.79E-01 8.61E-03 1.37E-02 5.55E-01

Ni-59 1.35E-04 5.87E-04 1.77E-07 1.47E-04 1.26E-04 2.67E-02

Ni-63 2.86E-04 1.61E-03 3.78E-07 4.01E-04 3.44E-04 7.31E-02

Np-237 4.92E+01 2.13E+02 3.53E-02 5.34E+01 4.57E+01 9.73E+03

Pm-147 3.01E-05 5.67E-04 1.56E-06 1.42E-04 1.22E-04 2.59E-02

Pu-238 2.11E-01 1.03E+00 1.11E-03 2.56E-01 2.19E-01 4.66E+01

Pu-239 2.61E-01 1.14E+00 1.23E-03 2.84E-01 2.43E-01 5.18E+01

Pu-240 2.61E-01 1.14E+00 1.22E-03 2.84E-01 2.43E-01 5.18E+01

Pu-241 4.58E-03 3.65E-02 5.85E-05 9.11E-03 7.80E-03 1.66E+00

Sb-125 1.32E-02 1.98E-01 4.11E-02 4.99E-02 4.40E-02 8.82E+00

Sr-90 3.29E-01 4.51E+00 7.60E-04 1.13E+00 9.67E-01 2.06E+02

Tc-9911.48E-01 6.44E-01 1.45E-09 1.61E-01 1.38E-01 2.93E+01

Note 1: BFM DF for Tc-99 was reported as zero in TSD 14-019, Table 11. A non-zero value is required

for the DCGL calculation. The lowest non-zero DF reported for all nuclides in SFP was conservatively applied to Tc-99.

The nuclide with the lowest SFP DF was H-3 with a value of 1.45E-09 mrem/yr per mCi and was assigned to Tc-99


of 165

Drill Spoils Dose Factors for Initial Suite (Reference: TSD 14-021)

Nuclide

Aux Building

Drill Spoils

mrem/yr per

mCi

CTMT Drill Spoils

mrem per mCi

SFB Drill Spoils

mrem/yr per

mCi

Turbine Drill

Spoils mrem/yr

per mCi

Crib House

Drill Spoils

mrem/yr per

mCi

WWTF Drill

Spoils

mrem/yr per

mCi

Ag-108m 1.23E-02 2.05E-02 1.85E-01 6.61E-03 1.23E-02 1.57E-01

Am-241 1.51E-04 3.14E-04 3.06E-03 9.76E-05 1.49E-04 2.91E-03

Am-243 1.58E-03 2.73E-03 2.51E-02 8.75E-04 1.55E-03 2.16E-02

C-14 3.08E-07 4.27E-07 3.72E-06 1.42E-07 3.08E-07 3.11E-06

Cm-243 9.93E-04 1.70E-03 1.56E-02 5.47E-04 9.87E-04 1.34E-02

Cm-244 2.55E-05 6.63E-05 7.09E-04 1.97E-05 2.50E-05 7.21E-04

Co-60 1.07E-02 2.97E-02 1.58E-01 9.58E-03 1.78E-02 2.26E-01

Cs-134 6.29E-03 1.72E-02 9.41E-02 5.54E-03 1.02E-02 1.31E-01

Cs-137 3.22E-03 7.27E-03 4.83E-02 2.35E-03 4.34E-03 5.57E-02

Eu-152 5.02E-03 1.38E-02 7.46E-02 4.45E-03 8.24E-03 1.05E-01

Eu-154 5.57E-03 1.46E-02 8.25E-02 4.73E-03 8.77E-03 1.12E-01

Eu-155 2.83E-04 4.95E-04 4.55E-03 1.58E-04 2.77E-04 3.84E-03

Fe-55 2.97E-09 4.20E-09 3.71E-08 1.39E-09 2.97E-09 3.29E-08

H-3 1.45E-09 1.45E-09 1.45E-09 1.45E-09 1.45E-09 1.45E-09

Nb-94 1.20E-02 1.98E-02 1.79E-01 6.40E-03 1.19E-02 1.52E-01

Ni-59 1.51E-08 2.04E-08 1.77E-07 6.77E-09 1.50E-08 1.52E-07

Ni-63 3.23E-08 5.61E-08 3.78E-07 1.86E-08 4.14E-08 4.16E-07

Np-237 2.91E-03 4.04E-03 3.53E-02 1.34E-03 2.89E-03 3.01E-02

Pm-147 9.32E-08 1.68E-07 1.56E-06 5.35E-08 9.15E-08 1.35E-06

Pu-238 3.97E-05 1.04E-04 1.11E-03 3.08E-05 3.89E-05 1.13E-03

Pu-239 4.41E-05 1.15E-04 1.23E-03 3.40E-05 4.30E-05 1.25E-03

Pu-240 4.38E-05 1.14E-04 1.22E-03 3.38E-05 4.28E-05 1.24E-03

Pu-241 2.97E-06 6.03E-06 5.85E-05 1.88E-06 2.92E-06 5.56E-05

Sb-125 2.75E-03 4.52E-03 4.11E-02 1.46E-03 2.69E-03 3.45E-02

Sr-90 6.26E-05 1.39E-04 7.60E-04 4.61E-05 9.96E-05 1.04E-03

Tc-99 1.45E-09 1.45E-09 1.45E-09 1.45E-09 1.45E-09 1.45E-09

Note 1: BFM DF for Tc-99 and H-3 were reported as zero in TSD 14-019, Table 11 (except for H-3 in SFP). A non-zero value is required

for the DCGL calculation.

The nuclide with the lowest DF was H-3 with a value of 1.45E-09 mrem/yr per mCi which was assigned

to Tc-99 and H-3


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Survey Unit

Wall and Floor

Surface Area1

m2

Auxiliary

Building 542

Floor and All

Walls 7226

Containment

Basement 3482

SFP/Transfer

Canal 723

Turbine Building

Basement 27135

Crib

House/Forebay 18254

WWTF 1124

Reference:


Conversion

Factor 1.00E+09 pCi/mCi


of 165

Combined DCGLs for Initial Suite not adjusted for Insignificant Contributor Dose Fraction

Radionuclide Auxiliary

(pCi/m2)

Containment

pCi/m2

Spent Fuel

pCi/m2

Turbine

pCi/m2

Crib House

pCi/m2

WWTF

pCi/m2

Ag-108m 1.94E+08 1.56E+08 1.87E+08 7.09E+07 7.73E+07 1.69E+07

Am-241 1.34E+07 6.26E+06 1.13E+10 3.22E+06 5.58E+06 4.26E+05

Am-243 1.31E+07 6.26E+06 1.38E+09 3.22E+06 5.56E+06 4.26E+05

C-14 5.33E+07 2.53E+07 9.29E+12 1.30E+07 2.25E+07 1.72E+06

Cm-243 1.28E+08 4.57E+07 2.22E+09 2.34E+07 3.99E+07 3.14E+06

Cm-244 1.99E+08 5.78E+07 4.88E+10 2.96E+07 5.13E+07 3.93E+06

Co-60 3.20E+08 1.75E+08 2.19E+08 7.40E+07 6.76E+07 2.97E+07

Cs-134 2.22E+08 3.34E+07 3.67E+08 1.68E+07 2.61E+07 2.43E+06

Cs-137 1.17E+08 4.38E+07 7.16E+08 2.22E+07 3.62E+07 3.08E+06

Eu-152 6.81E+08 4.07E+08 4.64E+08 1.70E+08 1.51E+08 7.90E+07

Eu-154 6.14E+08 3.54E+08 4.19E+08 1.50E+08 1.37E+08 6.05E+07

Eu-155 1.19E+10 5.25E+09 7.60E+09 2.45E+09 2.95E+09 5.10E+08

Fe-55 4.28E+12 4.77E+11 9.33E+14 2.44E+11 4.25E+11 3.25E+10

H-3 5.58E+08 2.64E+08 2.38E+16 1.36E+08 2.36E+08 1.80E+07

Nb-94 2.46E+08 2.51E+08 1.93E+08 1.07E+08 9.96E+07 4.00E+07

Ni-59 2.57E+10 1.22E+10 1.95E+14 6.29E+09 1.09E+10 8.33E+08

Ni-63 1.21E+10 4.47E+09 9.15E+13 2.30E+09 3.98E+09 3.04E+08

Np-237 7.04E+04 3.37E+04 9.80E+08 1.73E+04 3.00E+04 2.29E+03

Pm-147 1.15E+11 1.27E+10 2.21E+13 6.49E+09 1.13E+10 8.60E+08

Pu-238 1.64E+07 7.00E+06 3.11E+10 3.60E+06 6.25E+06 4.77E+05

Pu-239 1.32E+07 6.30E+06 2.82E+10 3.24E+06 5.63E+06 4.29E+05

Pu-240 1.33E+07 6.30E+06 2.83E+10 3.24E+06 5.63E+06 4.29E+05

Pu-241 7.56E+08 1.97E+08 5.92E+11 1.01E+08 1.76E+08 1.34E+07

Sb-125 2.63E+08 3.62E+07 8.41E+08 1.85E+07 3.11E+07 2.52E+06

Sr-90 1.05E+07 1.59E+06 4.55E+10 8.14E+05 1.42E+06 1.08E+05

Tc-99 2.34E+07 1.11E+07 2.38E+16 5.72E+06 9.95E+06 7.60E+05


of 165

Drilling Spoils DCGLs for Initial Suite not adjusted for Insignificant Contributor Dose Fraction

Radionuclide

Auxiliary

(pCi/m2)

Containment

pCi/m2

Spent Fuel

pCi/m2

Turbine

pCi/m2

Crib House

pCi/m2

WWTF

pCi/m2

Ag-108m 2.80E+08 3.50E+08 1.87E+08 1.37E+08 1.09E+08 1.42E+08

Am-241 2.29E+10 2.28E+10 1.13E+10 9.29E+09 8.98E+09 7.64E+09

Am-243 2.19E+09 2.63E+09 1.38E+09 1.04E+09 8.61E+08 1.03E+09

C-14 1.12E+13 1.68E+13 9.29E+12 6.40E+12 4.34E+12 7.14E+12

Cm-243 3.49E+09 4.22E+09 2.22E+09 1.66E+09 1.36E+09 1.66E+09

Cm-244 1.36E+11 1.08E+11 4.88E+10 4.61E+10 5.35E+10 3.08E+10

Co-60 3.23E+08 2.42E+08 2.19E+08 9.46E+07 7.51E+07 9.83E+07

Cs-134 5.50E+08 4.18E+08 3.67E+08 1.64E+08 1.31E+08 1.69E+08

Cs-137 1.07E+09 9.88E+08 7.16E+08 3.86E+08 3.08E+08 4.00E+08

Eu-152 6.89E+08 5.21E+08 4.64E+08 2.04E+08 1.62E+08 2.12E+08

Eu-154 6.22E+08 4.90E+08 4.19E+08 1.92E+08 1.53E+08 1.99E+08

Eu-155 1.22E+10 1.45E+10 7.60E+09 5.73E+09 4.83E+09 5.79E+09

Fe-55 1.16E+15 1.71E+15 9.33E+14 6.54E+14 4.51E+14 6.77E+14

H-3 2.38E+15 4.94E+15 2.38E+16 6.23E+14 9.21E+14 1.53E+16

Nb-94 2.87E+08 3.62E+08 1.93E+08 1.42E+08 1.13E+08 1.47E+08

Ni-59 2.28E+14 3.51E+14 1.95E+14 1.34E+14 8.90E+13 1.46E+14

Ni-63 1.07E+14 1.28E+14 9.15E+13 4.88E+13 3.23E+13 5.34E+13

Np-237 1.19E+09 1.78E+09 9.80E+08 6.78E+08 4.64E+08 7.38E+08

Pm-147 3.71E+13 4.26E+13 2.21E+13 1.69E+13 1.46E+13 1.65E+13

Pu-238 8.72E+10 6.91E+10 3.11E+10 2.94E+10 3.44E+10 1.96E+10

Pu-239 7.85E+10 6.27E+10 2.82E+10 2.67E+10 3.11E+10 1.78E+10

Pu-240 7.89E+10 6.29E+10 2.83E+10 2.68E+10 3.13E+10 1.79E+10

Pu-241 1.16E+12 1.19E+12 5.92E+11 4.82E+11 4.59E+11 4.00E+11

Sb-125 1.26E+09 1.59E+09 8.41E+08 6.22E+08 4.97E+08 6.45E+08

Sr-90 5.53E+10 5.15E+10 4.55E+10 1.96E+10 1.34E+10 2.14E+10

Tc-99 2.38E+15 4.94E+15 2.38E+16 6.23E+14 9.21E+14 1.53E+16


of 165

Attachment 19

Embedded Pipe DCGL Calculation


of 165

Calculation of Embedded Pipe DCGL

Inputs to CalculationConversion Factor 1.00E+09 pCi/mCiDose Limit 25 mrem/yrConversion Factor 0.0929 m2/ft2


Assigned IC Dose Percentage

IC Dose Adjustment

FactorAuxiliary 0.05 0.95Containment 0.10 0.90Basements other than Auxiliary and Containment 0.05 0.95

Auxiliary Basement Embedded Pipe (Floor Drains) (adjusted for insignificant contributor dose)Inputs to CalculationAuxiliary Floor Drain Surface Area 299.41 m2

Auxiliary Floor Drains DCGL (adjusted for insignificant contributor dose)

Auxiliary Basement Dose Factor (mrem/y per mCi)

Auxiliary Floor Drain DCGL (pCi/m2)

Co-60 1.08E-02 7.33E+09 Cs-134 1.56E-02 5.10E+09 Cs-137 2.96E-02 2.68E+09Ni-63 2.86E-04 2.78E+11Sr-90 3.29E-01 2.41E+08


of 165

Turbine Basement Embedded Pipe (Floor Drains) (adjusted for insignificant contributor dose)Inputs to CalculationTurbine Floor Drain Surface Area 302.43 m2

Turbine Embedded Pipe DCGL (adjusted for Insignificant Contributor Dose)Turbine Basement Dose Factor (mrem/y per mCi)

Turbine Floor Drain DCGL

(pCi/m2)Co-60 1.25E-02 6.31E+09Cs-134 5.49E-02 1.43E+09Cs-137 4.16E-02 1.89E+09Ni-63 4.01E-04 1.96E+11Sr-90 1.13E+00 6.94E+07

Unit 1 and Unit 2 Containment Embedded Pipe (IC-Sump Drain) (adjusted for insignificant contributor dose)Inputs to CalculationContainment IC-Sump Pipe Surface Area 1.05 m2

Nominal Area for DCGL Calculation 100 m2

Containment Unit 1 and Unit 2 IC-Sump Embedded Pipe DCGL1 (adjusted for insignificant contributor dose)Containment Basement Dose Factor (mrem/y per mCi)

IC-Sump Embedded Pipe DCGL

(pCi/m2)Co-60 4.11E-02 5.47E+09Cs-134 2.15E-01 1.05E+09Cs-137 1.64E-01 1.37E+09Eu-152 1.76E-02 1.28E+10Eu-154 2.03E-02 1.11E+10H-3 2.72E-02 8.28E+09Ni-63 1.61E-03 1.40E+11Sr-90 4.51E+00 4.98E+07Note 1: IC-Sump DCGLs listed applies to both Unit1 1 and Unit 2 IC-Sump pipesUnit 1 and Unit 2 IC-sump pipes are separate survey units


of 165

Unit 1 and Unit 2 Steam Tunnel Embedded Pipe (Floor Drains) (adjusted for insignificant contrubutor dose)Inputs to CalculationSteam Tunnel Floor Drain Area1 46.88 m2

Note 1: Larger of Unit 1 and Unit 2 Steam Tunnel drains used to minimze DCGL. Lower drain area is 46.39 m2 (Unit 2).

Unit 1 and Unit 2 Steam Tunnel Embedded Pipe DCGL (adjusted for insignificant contributor dose)Turbine Basement Dose Factor (mrem/y per mCi)

Turbine Embedded Pipe DCGL

(pCi/m2)Co-60 1.25E-02 4.07E+10Cs-134 5.49E-02 9.22E+09 Cs-137 4.16E-02 1.22E+10 Ni-63 4.01E-04 1.26E+12Sr-90 1.13E+00 4.48E+08

Unit 1 and Unit 2 Tendon Tunnel Embedded Pipe (Floor Drains) (adjusted for insignificant contrubutor dose)Inputs to CalculationTendon Tunnel Floor Drain Area 51.41 m2

Tendon Tunnel Embedded Pipe DCGL (adjusted for insignificant contributor dose)

Containment Basement Dose Factor (mrem/y per mCi)

Turbine Basement Dose Factor (mrem/y per mCi)

Tendon Tunnel Embedded Pipe DCGL


Tendon Tunnel Embedded Pipe

DCGL Turbine (pCi/m2)

Co-60 4.11E-02 1.25E-02 1.06E+10 3.52E+10Cs-134 2.15E-01 5.49E-02 2.04E+09 7.97E+09Cs-137 1.64E-01 4.16E-02 2.67E+09 1.05E+10Eu-152 1.76E-02 5.41E-03 2.48E+10 8.08E+10Eu-154 2.03E-02 6.14E-03 2.16E+10 7.13E+10H-3 2.72E-02 6.80E-03 1.61E+10 6.44E+10Ni-63 1.61E-03 4.01E-04 2.72E+11 1.09E+12Sr-90 4.51E+00 1.13E+00 9.70E+07 3.87E+08


of 165

Attachment 20

Penetration DCGL Calculation


of 165

Calculation of Penetration DCGLs (pCi/m2)


Conversion Factor 1.00E+09 pCi/mCi






Spent Fuel

Pool/Transfer

Canal

TurbineCrib

House/Forebay WWTF

(mrem/y per mCi) (mrem/y per mCi)

(mrem/y per

mCi)

(mrem/y per

mCi)

(mrem/y per

mCi)

(mrem/y per

mCi)

Co-60 1.00E-04 1.14E-02 0.00E+00 2.87E-03 2.85E-03 5.21E-01

Cs-134 9.27E-03 1.98E-01 0.00E+00 4.94E-02 4.91E-02 9.03E+00

Cs-137 2.64E-02 1.57E-01 0.00E+00 3.92E-02 3.90E-02 7.17E+00

Eu-152 5.96E-05 3.87E-03 0.00E+00 9.69E-04 9.64E-04 1.75E-01

Eu-154 6.77E-05 5.62E-03 0.00E+00 1.41E-03 1.40E-03 2.56E-01

H-3 6.21E-03 2.72E-02 0.00E+00 6.80E-03 6.75E-03 1.23E+00

Ni-63 2.86E-04 1.61E-03 0.00E+00 4.01E-04 4.00E-04 7.31E-02

Sr-90 3.29E-01 4.51E+00 0.00E+00 1.13E+00 1.12E+00 2.06E+02


of 165

BFM Drilling Spoils Dose Factors (Reference: TSD 14-021, Table 5) (Not adjusted for insignificant contributor dose)


Spent Fuel

Pool/Transfer

Canal

TurbineCrib

House/Forebay WWTF

(mrem/y per mCi) (mrem/y per mCi)

(mrem/y per

mCi)

(mrem/y per

mCi)

(mrem/y per

mCi)

(mrem/y per

mCi)

Co-60 1.07E-02 2.97E-02 1.58E-01 9.58E-03 2.07E-02 2.26E-01

Cs-134 6.29E-03 1.72E-02 9.41E-02 5.54E-03 1.19E-02 1.31E-01

Cs-137 3.22E-03 7.27E-03 4.83E-02 2.35E-03 5.05E-03 5.57E-02

Eu-152 5.02E-03 1.38E-02 7.46E-02 4.45E-03 9.58E-03 1.05E-01

Eu-154 5.57E-03 1.46E-02 8.25E-02 4.73E-03 1.02E-02 1.12E-01

H-3 0.00E+00 0.00E+00 1.45E-09 0.00E+00 0.00E+00 0.00E+00

Ni-63 3.23E-08 5.61E-08 3.78E-07 1.86E-08 4.81E-08 4.16E-07

Sr-90 6.26E-05 1.39E-04 7.60E-04 4.61E-05 1.16E-04 1.04E-03

Penetration Surface Area (Reference TSD 14-016)

Basement Surface Area

m2

Containment 242.36

Auxiliary 948.75

Turbine 1174.41

Crib House/Forebay 1.14

SFP/Transfer Canal 337.45

WWTF 0.89


of 165

Ratio of Instant Release Groundwater Concentration versus Diffusion Release for Auxiliary Basement DUST Model

(Reference: BNL Report "Evaluation of Maximum Radionuclide Groundwater Concentrations

for Basement Fill Model, Zion Restortaion Project", Revison 3, Attachment G)

Diffusion Release Instant ReleaseConcentration

Ratio

pCi/L pCi/L

Co-60 2.89E-08 7.58E-07 26.23

Cs-134 7.63E-07 3.75E-06 4.91

Cs-137 2.74E-06 3.75E-06 1.37

Eu-152 1.19E-07 1.78E-06 14.96

Eu-154 9.32E-08 1.78E-06 19.1

H-3 1.01E-03 1.02E-03 1.01

Ni-63 2.11E-06 2.73E-06 1.29

Sr-90 2.18E-05 6.87E-05 3.15


Assigned IC Dose Percentage

IC Dose Adjustment Factor





of 165

Penetration DCGL (Adjusted for Insignificant Contributor Dose)


Spent Fuel

Pool/Transfer

Canal

TurbineCrib House/

Forebay1 WWTF2


Co-60 8.82E+07 2.26E+09 4.45E+08 1.62E+09 NA NA

Cs-134 3.28E+08 4.32E+08 7.48E+08 3.68E+08 NA NA

Cs-137 6.17E+08 5.66E+08 1.46E+09 4.87E+08 NA NA

Eu-152 3.29E+08 5.26E+09 9.44E+08 3.73E+09 NA NA

Eu-154 2.33E+08 4.58E+09 8.53E+08 3.30E+09 NA NA

H-3 3.99E+09 3.42E+09 4.84E+16 2.98E+09 NA NA

Ni-63 6.79E+10 5.78E+10 1.86E+14 5.04E+10 NA NA

Sr-90 2.41E+07 2.06E+07 9.26E+10 1.79E+07 NA NA

Note 1: Crib House/Forebay penentration surface area of 1.14 m2 will be included with Crib House/Forebay surfaces survey unit - surface DCGL will apply

Note 2: WWTF penenraton surface area surface area of 0.89 m2 will be included in WWTF surface survey unit - surface DCGL will apply

Lower Action Level for Remdiation and Grouting Action of Auxiliary Penetration Survey Unit

Auxiliary

pCi/m2

Co-60 1.16E+07

Cs-134 4.30E+07

Cs-137 8.11E+07

Eu-152 4.32E+07

Eu-154 3.05E+07

H-3 5.24E+08

Ni-63 8.91E+09

Sr-90 3.17E+06


of 165

Basement Wall/Floor Surface DCGLs

ContainmentSpent Fuel

Pool/Transfer Canal Turbine

Crib

House/Forebay WWTF

pCi/m2 pCi/m2 pCi/m2 pCi/m2 pCi/m2

Co-60 1.57E+08 1.57E+08 7.03E+07 5.52E+07 2.83E+07

Cs-134 3.01E+07 3.01E+07 1.59E+07 2.13E+07 2.31E+06

Cs-137 3.94E+07 3.94E+07 2.11E+07 2.96E+07 2.93E+06

Eu-152 3.66E+08 3.66E+08 1.62E+08 1.23E+08 7.55E+07

Eu-154 3.19E+08 3.19E+08 1.43E+08 1.12E+08 5.74E+07

H-3 2.38E+08 2.38E+08 1.29E+08 1.93E+08 1.71E+07

Ni-63 4.02E+09 4.02E+09 2.18E+09 3.25E+09 2.89E+08

Sr-90 1.43E+06 1.43E+06 7.74E+05 1.16E+06 1.03E+05

Penetration Remediation and Grouting Action Levels

Aux/CTMT Aux/SFP Aux/Turbine CTMT/SFP SFP/Turbine

Minimum Aux,

CTMT, SFP,

Turbine

Co-60 1.16E+07 1.16E+07 1.16E+07 1.57E+08 7.03E+07 1.16E+07

Cs-134 3.01E+07 3.01E+07 1.59E+07 3.01E+07 1.59E+07 1.59E+07

Cs-137 3.94E+07 3.94E+07 2.11E+07 3.94E+07 2.11E+07 2.11E+07

Eu-152 4.32E+07 4.32E+07 4.32E+07 3.66E+08 1.62E+08 4.32E+07

Eu-154 3.05E+07 3.05E+07 3.05E+07 3.19E+08 1.43E+08 3.05E+07

H-3 2.38E+08 2.38E+08 1.29E+08 2.38E+08 1.29E+08 1.29E+08

Ni-63 4.02E+09 4.02E+09 2.18E+09 4.02E+09 2.18E+09 2.18E+09

Sr-90 1.43E+06 1.43E+06 7.74E+05 1.43E+06 7.74E+05 7.74E+05

tsd 14-010 rev 4, resrad dose modeling for basement ...zionsolutions, inc. technical support...

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