ML040280140

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Calculation No. YA-CALC-01-002-03, Derived Concentration Guideline Levels for Soil at the Yankee Rowe Site.
ML040280140
Person / Time
Site: Yankee Rowe
Issue date: 01/19/2004
From: Balineau G, Bisson J, Keefer E, Littlefield P
Yankee Atomic Electric Co
To:
NRC/FSME
References
-RFPFR YA-CALC-01-002-03
Download: ML040280140 (33)
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CALCULATION TITLE PAGE Dedved Concentration Guideline Levels for Soil at the Yankee Rowe Site Title YA-CALC-01-002-03 Calcul;on NaFfiber Executive Summary:

The probabilistic modules in version 6.21 of the RESRAD computer code provided peak-of-the-mean doses, which were then used to calculate derived concentration guideline levels for residual radioactivity in soil. A total of 20 RESRAD runs were made, one for each of the 20 nuclides that may present a significant dose impact for license termination at the Yankee Rowe site. Input values for the RESRAD runs account for the results of an earlier sensitivity analysis through the use of 25 and 75 percentile values for all identified sensitive parameters. The approach used to calculate nuclide-specific, soil-based derived concentration guideline levels (DCGLs) was consistent with NRC guidance. The derived concentration guideline levels calculated here provide assurance that the radiological criteria for license termination established in 10CFR20, Subpart E will be met at the Yankee Rowe site.

ADDrovals (Print & Sign Name)

Preparer Joe Bisson LT. .A Date: /ZZ2v3 Reviewer Estella Keefer Date:

Reviewer. Peter Littlefield Date:

Approver Conizant Manager): )V Date: /s tc,lIOA DCM FORM 1.5-1A fatsf (Of Page 1 of I

CALCULATION TITLE PAGE Derived Concentration Guideline Levels for Soil at the Yankee Rowe Site Title YA-CALC-01 -002-03 Calculation Number Executive Summary:

The probabilistic modules in version 6.21 of the RESRAD computer code provided peak-of-the-mean doses, which were then used to calculate derived concentration guideline levels for residual radioactivity in soil. A total of 20 RESRAD runs were made, one for each of the 20 nuclides that may present a significant dose impact for license termination at the Yankee Rowe site. Input values for the RESRAD runs account for the results of an earlier sensitivity analysis through the use of 25 and 75 percentile values for all identified sensitive parameters. The approach used to calculate nuclide-specific, soil-based derived concentration guideline levels (DCGLs) was consistent with NRC guidance. The derived concentration guideline levels calculated here provide assurance that the radiological criteria for license termination established in 10CFR20, Subpart E will be met at the Yankee Rowe site.

Aonrovals (Print & Sian Name)

Preparer: Joe Bisson Date:

Reviewer: Estella Keefer + g e t Date: )Z -22_03 Reviewer: Peter Uttlefield Date:

ADDrover (Cognizant Manager): Date:

DCM FORM 1.5-A (At6 >t Ofe0 Page 1 of 1

CALCULATION TITLE PAGE Derived Concentration Guideline Levels for Soil at the Yankee Rowe Site Title YA-CALC-01 -002-03 Calculation Number Executive Summary:

The probabilistic modules In version 6.21 of the RESRAD computer code provided peak-of-the-mean doses, which were then used to calculate derived concentration guideline levels for residual radioactivity in soil. A total of 20 RESRAD runs were made, one for each of the 20 nudides that may present a significant dose Impact for license termination at the Yankee Rowe site. Input values for the RESRAD runs account for the results of an earlier sensitivity analysis through the use of 25 and 75 percentile values for all identified sensitive parameters. The approach used to calculate nucide-specific, soil-based derived concentration guideline levels (DCGLs) was consistent with NRC guidance. The derived concentration guideline levels calculated here provide assurance that the radiological criteria for license termination established in IOCFR20, Subpart E wil be met at the Yankee Rowe site.

Approvals Print & Sian Name)

Preparer Joe Sisson Date:

Reviewer. Estella Keefer Date:

Reviewer. Peter Littlefield ./ 'Date /22-

/ vo`7 aaef Da AMp)Mver (Co-anizant Manager): Date:

f f44~1

Project: Yankee Rowe License Termination Calc. No. YA-CALC-01-002-03

Subject:

Derived Concentration Guideline Levels for Soil at the Yankee Rowe Site Page 2 of 28 Table of Contents Section Paae 1.Purpose ..................................................... 3

11. Summary of Results ..................................................... 3 Ill. References .................... ................................. 4 IV. Assumptions .................... ................................. 5 V. Method of Calculation ..................................................... 6 VI. Calculations ..................... ................................ 8 Tables Paqe Table 1: Nuclide-Specific DCGLs for Soil ........................ ......................... 3 Table 2: RESRAD Input Parameters Identified as Sensitive in YA-CALC-01-001-03 .... 6 Table 3: RESRAD-Generated Percentile Values for Sensitive Input Parameters ...... 8 Table 4: Comparison of RESRAD-Generated 75th Percentile Values to the Ranges and Mean Values of the National Distributions ............... ....................... 9 Table 5: RESRAD Results and DCGL Values .......................... ........................ 10 Table 6: Input Parameters for Soil Derived Concentration Guidelines Levels ........ 11 1.....

Attachments No. of Pages : YA-CALC-01-002-03 CD ................................................ 2

Project: Yankee Rowe License Termination Calc. No. YA-CALC-01-002-03

Subject:

Derived Concentration Guideline Levels for Soil at the Yankee Rowe Site Page 3 of 28 1.Purpose This analysis is performed to calculate nuclide-specific, soil-based derived concentration guideline levels (DCGLs) that will provide assurance that the radiological criteria for license termination established in 10CFR20, Subpart E are met at the Yankee Rowe site. For unrestricted release of a site, 10 CFR Part 20 requires that (i) the annual total effective dose equivalent (TEDE) from residual radioactivity to an average member of the critical group does not exceed 25 mrem and (ii) residual radioactivity be reduced to a level that is as low as reasonably achievable (ALARA). The approach used in this calculation is based on and consistent with NRC guidance provided in NUREG-1727 [1] and the draft NUREG-1 757 [2].

I. Summary of Results

1. Running the probabilistic modules in version 6.21 of the RESRAD computer code provided peak-of-the-mean doses, which were then used to calculate DCGLs for residual radioactivity in soil. A total .of 20 RESRAD runs were made, one for each of the 20 nuclides that may present a significant dose impact for license termination at the Yankee Rowe site [3]. Input values for the RESRAD DCGL runs accounted for the results of an earlier sensitivity analysis (SA) [4] through use of 25 and 75 percentile values for all identified sensitive parameters. The nuclide-specific DCGLs for soil are summarized in Table 1 below.

Table 1: Nuclide-Specific DCGLs for Soil DCGL DCGL Nuclide (pCi/g) Nuclide (pCig)

H-3 3.7E+02 Cs-134 5.OE+00 C-14 5.5E+00 Cs-137 8.6E+00 Fe-55 2.9E+04 Eu-152 1.OE+01 Co-60 4.OE+00 Eu-154 9.5E+00 Ni-63 8.IE+02 Eu-155 4.OE+02 Sr-90 1.7E+00 Pu-238 3.3E+01 Nb-94 7.2E+O0 Pu-239 3.OE+01 Tc-99 1.4E+01 Pu-241 9.8E+02 Ag-1 08m 7.3E+00 Am-241 2.9E+01 Sb-125 3.2E+01 Cm-243 3.2E+01

Project: Yankee Rowe License Termination CaIc. No. YA-CALC-01-002-03

Subject:

Derived Concentration Guideline Levels for Soil at the Yankee Rowe Site Page 4 of 28 111. References

1. NUREG-1727. NMSS Decommissioning Standard Review Plan," September 2000.
2. NUREG-1757. "Consolidated NMSS Decommissioning Guidance," Volume 2: Characterization, Survey and Determination of Radiological Criteria," September 2003.
3. YA-REPT-00-001-03, "Radionuclide Selection for DCGL Determination," November 2003.
4. YA-CALC-01-001-03, "RESRAD 6.21 Sensitivity Analysis for Resident Farmer Scenario - Soil,"

December 2003

5. NUREG/CR-5512, "Residual Radioactive Contamination From Decommissioning," Volume 1:

"Technical Basis for Translating Contamination Levels to Annual TEDE," October 1992

6. NUREG/CR-5512, "Residual Radioactive Contamination From Decommissioning," Volume 2: "User's Manual DandD Version 2.1," April 2001
7. NUREG/CR-5512, "Residual Radioactive Contamination From Decommissioning," Volume 3:

"Parameter Analysis, Draft Report for Comment," October 1999.

8. Yu, C. et al., "Users Manual for RESRAD Version 6.0," ANIJEAD-4, July 2001.
9. NUREG/CR-6676, "Probabilistic Dose Analysis Using Parameter Distributions Developed for RESRAD and RESRAD-BUILD Codes", Kamboj S., et al. US Department of Energy- Argonne National Laboratory, May 2000.
10. NUREG/CR-6692, "Probabilistic Modules for the RESRAD 6.0 and RESRAD-BUILD 3.0 Computer Codes", LePoire, D., et al., US Department of Energy- Argonne National Laboratory, November 2000.
11. NUREG/CR-6697, "Development of Probabilistic RESRAD 6.0 and RESRAD-BUILD 3.0 Computer Codes", Yu, C. et al., US Department of Energy- Argonne National Laboratory, November 2000.
12. Yu, C., et al, Argonne National Laboratory, 'Data Collection Handbook to Support Modeling Impacts of Radioactive Material in Soil," April 1993.
13. YA-REPT-00-002-03, "Hydrogeological Parameter Estimates for Radiation Dose Modeling,"

May 2003.

14. YA-REPT-00-008-03, Evaluation of GeoTesting Express Soil Testing and Determination of Depth to Groundwater," December 2003.
15. Eckerman, K.F., et al., "Limiting Values of Radionuclide Intake and Air Concentration and Dose Conversion Factors for Inhalation, Submersion, and Ingestion," EPA-520/1-88-020, Federal Guidance Report No. 11, U.S EPA, 1988.

Project: Yankee Rowe License Termination Calc. No. YA-CALC-01-002-03

Subject:

Derived Concentration Guideline Levels for Soil at the Yankee Rowe Site Page of 28 IV. Assumptions

1. The resident farmer scenario, as described in Volume 1 of NUREG/CR-5512 5], is assumed as a reasonably conservative scenario for establishing DCGL values for residual radioactivity in soil. In this scenario, residual radioactivity is contained in a soil layer on the property that can be used for residential and light farming activities. A residential farming family is postulated to live onsite, raise crops and livestock for consumption and drink water from a ground water source onsite. The dose from residual radioactivity in the soil is evaluated for the average member of the critical group as required by 10CFR Part 20, Subpart E and described in NUREG-1727 [1]. The critical group represents the group reasonably expected to receive the greatest exposure to residual radioactivity.

The potential exposure pathways that define the residential farmer scenario are:

a. Direct exposure to external radiation from radionuclides in the soil
b. Internal dose from inhalation of airborne radionuclides, and
c. Internal dose from ingestion of radionuclides in (1) Crops grown on the property and irrigated with water obtained onsite, (2) Meat and milk obtained from livestock fed fodder and water produced onsite, (3) Drinking water from an onsite well, (4) Fish from an onsite pond and (5) Soil.
2. An initial, evenly distributed soil concentration of 1 pCi/g is assumed for each nuclide. The year in which the maximum dose occurs may vary depending on the nuclide. The peak-of-the-mean dose associated with an initial concentration of 1 pCilg will be selected for the basis of the DCGL without regard to year of occurrence.

Project: Yankee Rowe License Termination Caic. No. YA-CALC-01-002-03

Subject:

Derived Concentration Guideline Levels for Soil at the Yankee Rowe Site Page 6 of 28 V. Method of Calculation

1. RESRAD version 6.21 [8] was used to calculate all doses associated with residual radioactivity is soil.

RESRAD enables site modeling through its many input parameters. RESRAD 6.21 includes probabilistic modules [9, 10, and 11] that provide peak-of-the-mean doses. NUREG-1727 [1] and draft NUREG-1757 [2] both discuss the application of the peak-of-the-mean doses to derive nuclide-specific DCGLs. The DCGLs developed here for the Yankee Rowe site are based on peak-of-the-mean doses, which are calculated using an approach that is consistent with NRC guidance.

The conceptual model underlying the RESRAD modeling of the Yankee site is based on the site characteristics expected at the time of release of the site. The model is comprised of a contaminated zone underlain by an unsaturated zone underlain by a saturated zone. The contaminated zone is assumed to be at the ground surface with no cover material and the ground water is initially uncontaminated. The model as described is consistent with that described by Yu et al. [8].

2. Execution of the RESRAD code requires input for many behavioral, metabolic, and physical parameters. YA-CALC-01-001-03 [4] documents a sensitivity analysis performed on all of the RESRAD input parameters to identify those that have the greatest influence on the peak of the mean dose. The Partial Rank Correlation Coefficient (PRCC) was used in that analysis to identify sensitive input parameters. A parameter was identified as sensitive if the absolute value for the PRCC was greater than 0.25. Most of the RESRAD input parameters were determined to be non-sensitive (that is, the I PRCC <0.25, indicating that variations in values have little influence on the peak-of-the-mean dose). However, some input parameters were identified as sensitive (that is, the I PRCC 1Z0.25, indicating variations in parameter values influence the peak-of-the-mean dose). The RESRAD input parameters identified in YA-CALC-01-001-03 [4] as sensitive are summarized in Table 2.

Table 2: RESRAD Input Parameters Identified as Sensitive in YA-CALC-01-001-03 [4]

Nuclide Sensitive Parameter (parameter code) Nuclide Sensitive Parameter (parameter code)

H-3 Depth of roots (DROOT) Sb-125 External shielding factor (SHF1)

Kd in contaminated zone (DCATC(H-3)) Kd in contaminated zone (DCATC(Sb-125))

Thickness of contaminated zone (THICKO)

C-14 Depth of roots (DROOT) Cs-134 Extemal shielding factor (SHF1)

Thickness of contaminated zone (THICKO) and Plant transfer factor (BRFT (55,1))

Thickness of evasion layer (DMC) Cs-137 Depth of roots (DROOT)

Milk transfer factor (BRFT (55,3))

Meat transfer factor (BRFT (55,2))

Fe-55 Meat transfer factor (BRFT (26,2)) Eu-152 External shielding factor (SHF1)

Plant transfer factor (BRFT (26,1)) and Eu-1 54 Co-60 External shielding factor (SHFI) Eu-1 55 External shielding factor (SHF1)

Plant transfer factor (BRFT (27,1)) Plant transfer factor (BRFT (63,1))

Meat transfer factor (BRFT (27,2))

Ni-63 Plant transfer factor (BRFT (28,1)) Pu-238 Plant transfer factor (BRFT (94,1))

Milk transfer factor (BRFT (28,3)) and Depth of roots (DROOT)

Depth of roots (DROOT) Pu-239 Sr-90 Plant transfer factor (BRFT (38,1)) Pu-241 Am-241 Plant transfer factor (BRFT (95,1))

Depth of roots (DROOT) Depth of roots (DROOT)

Kd of Am-241 in contaminated zone (DCATC(Am-241))

Nb-94 External shielding factor (SHFI) Am-241 Plant transfer factor (BRFT (95,1))

Kd in contaminated zone (DCATC(Nb-94)) Depth of roots (DROOT)

Tc-99 Plant transfer factor (BRFT (43,1)) Cm-243 External shielding factor (SHF1)

Depth of roots (DROOT) Depth of roots (DROOT)

Kd in contaminated zone (DCACTC (Tc- Plant transfer factor (BRFT (96,1))

99))

Ag-108m External shielding factor (SHF1)

Project: Yankee Rowe License Termination Calc. No. YA-CALC-01-002-03

Subject:

Derived Concentration Guideline Levels for Soil at the Yankee Rowe Site Page 7 of 28

3. Values used for RESRAD input parameters here are the same as those used in the SA [4], except for the values assigned to the sensitive parameters listed above. For non-sensitive parameters, either deterministic values or national distributions are used as input. For all sensitive parameters, either 25 or 75 percentile values are used as input for peak-of-the-mean dose calculations. The percentile values are obtained from the same parameter distributions used in the SA. The 75th percentile is used as deterministic input when the PRCC for a given parameter in the SA was 20.25 and a positive value, and the 25th percentile value was used when the PRCC for a given parameter in the SA was 0.25 and a negative value.

The 25 and 75 percentile values are obtained from the RESRAD .mco" files generated in the SA 4]

using the following method.

a. Open the RESRAD-generated *.mco" file from the SA using the "Interactive Output" button on the RESRAD navigator.
b. Click the "Results' tab in the interactive output window.
c. Click on the Graphics" tab.
d. Select Input vector" by scrolling through the choices under the Primary Object" prompt.
e. Select the desired parameter by scrolling through the choices under the Input Vector" prompt.
f. Right click on the cumulative probability graph and select "Edit Chart Data."
g. Scroll down until the desired percentile (i.e., 0.25 or 0.75) is visible in column C2.

The corresponding value in C1 is the percentile value.

A comparison of the 2 5 h and 75th percentiles values to the mean values for the national distributions used in the SA is included in this calculation to provide assurance that they are reasonably conservative.

4. All peak-of-the-mean doses are calculated with the probabilistic modules in RESRAD 6.21. The analyses are executed using 2000 observations and 1 repetition. The Latin Hypercube Sampling (LHS) technique is used to sample the probability distributions for each of the stochastic input parameters. The correlated or non-correlated grouping option is used to preserve the prescribed correlation, and a random seed of 1000 is used to preserve the prescribed sampling technique.

RESRAD 6.21 runs are performed for 20 nuclides that have been identified as nuclides presenting a significant dose impact for license termination at the Yankee Rowe site [3]. The 20 nuclides are: H-3, C-14, Fe-55, Co-60, Ni-63, Sr-90, Nb-94, Tc-99, Ag-108m, Sb-125, Cs-134, Cs-137, Eu-152, Eu-154, Eu-155, Pu-238, Pu-239, Pu-241, Am-241, and Cm-243.

5. Nuclide-specific DCGLs are calculated from the peak-of-the-mean doses following equation 1 below.

DCGL (pCi/g) = (25 mrem/y)/(peak-of-the-mean dose in mrem/y per pCi/g) (1)

Project: Yankee Rowe License Termination Calc. No. YA-CALC-01-002-03

Subject:

Derived Concentration Guideline Levels for Soil at the Yankee Rowe Site Page 8 of 28 VI. Calculations

1. RESRAD files (*.mco) from the SA [4] were accessed and the percentile values were obtained according to the procedure outlined in Section V.4 above. The percentile values for the sensitive input parameters and affected nuclide are shown below in Table 3.

Table 3: RESRAD-Generated Percentile Values for Sensitive Input Parameters RESRAD Percentile Valueb Sensitive Input Parametero Affected Nuclide 25th 7 5 th External shielding factor Co-60, Nb-94, Ag-108m, Sb- 0.398 125, Cs-134, Cs-137, Eu-152, Eu-54, Eu-155, Cm-243 Depth of roots (m) H-3, C-14, Ni-63, Sr-90, Tc- 1.174 99, Cs-134, Cs-137, Pu-238, Pu-239, Pu-241, Am-241, Cm-243 Thickness of contaminated zone (m) H-3, C-14 2.887 Thickness of evasion layer (m) C-14 0.427 Plant transfer factor Fe55 0.00183 (pCi/g plant per pCi/g soil) Co-60 0.146 Ni-63 0.0911 Sr-90 0.590 Tc-99 9.159 Cs-134, Cs-137 0.0782 Eu-155 0.00421 Cm-243, Pu-238, Pu-239 0.00183 Am-241 (the Am-241 plant 0.00183 transfer factor was also found sensitive in Pu-241 run)

Meat transfer factor Fe55 0.0391 (pCi/kg per pCi/d) Co-60 0.0586 Cs-134, Cs-137 0.0651 Milk transfer factor Ni-63 0.0321 (pCUI per pCVd) Cs-134, Cs-137 0.0139 Kd in contaminated zone H-3 0.0430 (cm 3 /g) Nb-94, Sb-1 25 3308 Tc-99 4.28 Kd of Am-241 in contaminated zone (cm 3/g) Pu-241 12045 a Sensitivities have been determined previously 4].

b A parameter was identified in the SA [4] as sensitive if the absolute value of the PRCC was 20.25. The 75 h percentile value was selected for use as input here when the PRCC for a given parameter in the SA was 20.25 and a positive value. The 2 51h percentile value was selected for use as input here when the PRCC value for a given parameter in the SA was 20.25 and a negative value.

2. Table 4 shows a comparison of the range, median, and mean values of the distributions used in the SA

[4] to the 7 5m percentile values obtained from the RESRAD files. In all cases, the 75 th percentile values were greater than the mean value of the distributions, indicating that their selection increased conservatism in the respective RESRAD input parameters.

Project: Yankee Rowe Ucense Ternination Calc. No. YA-CALC-01-002-03

Subject:

Derived Concentration Guideline Levels for Soil at the Yankee Rowe Site Page 9 of 28 Table 4: Comparison of RESRAD-Generated 75t Percentile Values to the Ranges and Mean Values of the National Distributions Nuclide National Distribution Data RESRAD-Generated Sensitive Parameter" Rangeb Median Mean 75th Percentile Value External shielding factor Co-60, Nb-94, Ag-108m, .044 -1.0 0.2725 0.312 0.398 Sb-125, Cs-134, Cs-137, Eu-152, Eu-154, Eu-155, Cm-243 Thickness of contaminated zone (m) H-3, C-14 0.15-3.8 1.975 2.887 Thickness of evasion layer (m) C-14 0.2 -0.6 0.3 0.427 Plant transfer factor Fe-55 6.84E 1.48E-2 0.001 0.00148 0.00183 (pCilg plant per pCUg soil) Co-60 5.46E 1.18E+1 0.080 0.118 0.146 Ni-63 3.41 E 7.38E-1 0.050 0.0737 0.0911 Sr-90 1.53E 6.02E+0 0.300 0.488 0.590 Tc-99 3.43E 7.42E+1 5.000 7.407 9.159 Cs-134, Cs-137 2.03E 7.99E-1 0.040 0.0648 0.0782 Eu-1 55 7.28E 5.98E-2 0.002 0.0036 0.00421 Cm-243, Pu-238, Pu-239 6.31 E 1.47E-2 0.001 0.00148 0.00183 Am-241 (the Am-241 plant 6.82E 1.57E-2 0.001 0.00148 0.00183 transfer factor was also found sensitive in Pu-241 run)

Meat transfer factor Fe55 8.89E 9.87E-2 0.030 0.323 0.0391 (pCi/kg per pCi/d) Co-60 1.44E 5.92E-1 0.050 0.0485 0.0586 Cs-134, Cs-137 1.48E 1.64E-1 0.030 0.0538 0.0651 Milk transfer factor Ni-63 2.49E 1.64E-1 0.020 0.0254 0.0321 (pCi/l per pCi/d) Cs-134, Cs-137 2.24E 4.46E-2 0.010 0.0112 0.0139 Kd in contaminated zone Nb-94, Sb-125 2.30E 7.81 E+6 380 3308 (cm 3/g) Tc-99 3.72E 8.75E+3 0.510 4.28 Kd of Am-241 in contaminated zone (cm3 /g) Pu-241 1.22E 1.82E+7 1445 12045 a Sensitivities have been determined previously [4].

b For some parameters (i.e., Kd values, transfer factors), the distribution range is defined by the 0.001 quantile value as a minimum and the 0.999 quantile value as a maximum. In those cases, the minimum and maximum values were obtained from RESRAD .mco files and are approximations for the 0.001 and 0.999 quantile values.

Project: Yankee Rowe License Termination Calc. No. YA-CALC-01-002-03

Subject:

Derived Concentration Guideline Levels for Soil at the Yankee Rowe Site Page 10 of 28

3. RESRAD input files were created for each nuclide. Table 6 provides a complete listing of parameter values incorporated into input files.
4. Results of the RESRAD runs are summarized in the table below. All DCGLs were calculated as described in Section V.6 above. DCGL values are rounded to 2 significant digits.

Note: All code executions were performed on an e-Machine T2615 (AMD Athlon 2600+) computer using Microsoft Windows XP Home Edition (version 2002) as the operating system.

Table 5: RESRAD Results and DCGL Values Peak-of-the-Mean Dose DCGL Peak-of-the-Mean Dose DCGL Nuclide (mrem/y per pCi/g) (pCig) Nuclide (mrem/y per pCi/g) (pClg)

H-3 6.79E-02 3.7E+02 Cs-1 34 5.02E+00 5.OE+00 C-14 4.52E+00 5.5E+00 Cs-137 2.92E+00 8.6E+00 Fe-55 8.57E-04 2.9E+04 Eu-152 2.43E+00 1.OE+01 Co-60 6.21 E+00 4.OE+00 Eu-1 54 2.63E+00 9.5E+00 Ni-63 3.07E-02 8.1E+02 Eu-1 55 6.29E-02 4.OE+02 Sr-90 1.45E+01 1.7E+00 Pu-238 7.48E-01 3.3E+01 Nb-94 3.46E+00 7.2E+00 Pu-239 8.30E-01 3.OE+01 Tc-99 1.76E+00 1.4E+01 Pu-241 2.54E-02 9.8E+02 Ag-1 08m 3.44E+00 7.3E+00 Am-241 8.59E-01 2.9E+01 Sb-125 7.82E-01 3.2E+01 Cm-243 7.85E-01 3.2E+01

Project: Yankee Rowe License Termination Calc. No. YA-CALC-01-002-03

Subject:

Derived Concentration Guideline Levels for Soil at the Yankee Rowe Site Page 11 of 28 Table 6 Input Parameters for Soil Derived Concentration Guideline Levels Ridint armer Mnarin I 1 ~~~~~~~~~~~~~~~~~~~Distribution's Statistical Parametersd Mean Parameter (unit) Typea Priority? Treatmentc Value/Distribution l Basis l 2 3 4 {Median}

Soil Concentrations Basic radiation dose limit (mrem/y) l l 3 l D ] 25 l 0 CFR 20.1402 [ NR l NR l NR l NR Initial principal radionuclide (pCig) l P 2 l D J 1 l Unit Value NR l NR l NR NR Distribution coefficients (cm3/g) applied to contaminated, unsaturated, and saturated zone, unless otherwise noted Ac-227+D P 1 S Truncated lognormal-n NUREG/CR-6697, Att C 11] 6.72 3.22 0.001 0.999 825 Ag-108m P 1 5 Truncated lognormal-n NUREG/CR-6697, Att. C [11] 538 211 0.001 0.999 216 Am-241 P 1 S Truncated lognormal-n NUREG/CR-6697, Att- C [11 - 7.28 3.15 0.001 0.999 applied to saturated &

unsaturated zones 75 h percentile value (from D 1.20E+04 RESRAD (.mco) file created in NR NR NR NR 1.45E+03 the sensitivity analysis [4 -

applied only to contaminated zone in Pu-241 RESRAD run I J Am-243+D P 1 S Truncated lognormal-n NUREG/CR-6697, Att- C 11] 7.28 3.15 0.001 0.999 1445 C-14 P 1 S Truncated lognormal-n NUREG/CR6697, Att C [11] 2.4 3.22 0.001 0.999 11 Cm-243 P 1 S Truncated lognormal-n NUREG/CR-6697, Att C [11] 8.82 1.82 0.001 0.999 6761 Co-60 P 1 5 Truncated lognormal-n NUREG/CR4697, Att. C [11] 5.46 2.53 0.001 0.999 235 Cs-1 34 P 1 5 Truncated lognormal-n NUREG/CR-6697, Att C [11] 6.1 2.33 0.001 0.999 446 Cs-1 37+D P 1 S Truncated lognormal-n NUREG/CR-6697, Att- C [11] 6.1 2.33 0.001 0.999 446 Eu-1 52 P 1 S Truncated lognormal-n NUREG/CR-6697, Att. C 111 6.72 3.22 0.001 0.999 825 Eu-154 P 1 5 Truncated lognormal-n NUREG/CR-6697. Att. C [11] 6.72 3.22 0.001 0.999 825 Eu-155 P 1 S Truncated lognormal-n NUREG/CR-6697, At C (11]1 6.72 3.22 0.001 0.999 825 Fe-55 P 1 S Truncated lognormal-n NUREG/CR4697, Att. C [11] 5.34 2.67 0.001 0.999 209 Gd-152 P 1 S Truncated lognormal-n NUREG/CR4697, Ait C [11] 6.72 3.22 0.001 0.999 825

Project: Yankee Rowe License Ternination Calc. No. YA-CALC-01-002-03

Subject:

Derived Concentration Guideline Levels for Soil at the Yankee Rowe Site Page 12 of 28 Table 6 Input Parameters for Soil Derived Concentration Guideline Levels Resident Farmer Scenario Distribution's Statistical Parameterad Mean Parameter (unit) Type' Priorityb Treatmentc Value/Distribution Basis 1 2 3 4 {Median}

H-3 P 1 S Truncated lognormal-n NUREG/CR-6697, Att. C [11- -2.81 0.5 0.001 0.999 6.00E-02 applied to saturated and unsaturated zones.

D 4.30E-02 25" percentile value (from NR NR NR NR RESRAD (.mco) file created in the sensitivity analysis [4l)-

applied to contaminated zone only Nb-94 P 1 S Truncated lognormal-n NUREG/CR-6697, Att. C [11]- 5.94 3.22 0.001 0.999 applied to saturated and unsaturated zones.

D 3.31 E+03 75e percentile value (from NR NR NR NR 3.80E+02 RESRAD (.mco) file created in the sensitivity analysis [4]) -

applied to contaminated zone only Ni-63 P 1 S Truncated lognommal-n NUREG/CR-6697, Att. C [11] 6.05 1.46 0.001 0.999 424 Np-237+D P 1 S Truncated lognormal-n NUREG/CR-6697, Att. C (113 2.84 2.25 0.001 0.999 17 Pa-231 P 1 5 Truncated lognormal-n NUREG/CR-6697, Att. C [11] 5.94 3.22 0.001 0.999 380 Pb-210+D P 1 S Truncated lognormal-n NUREG/CR-6697, Att. C (11] 7.78 2.76 0.001 0.999 2392 Pu-238 P 1 S Truncated lognommal-n NUREG/CR-6697, Att. C [11] 6.86 1.89 0.001 0.999 953 Pu-239 P 1 S Truncated lognommal-n NUREG/CR-6697, Att. C [11] 6.86 1.89 0.001 0.999 953 Pu-241 +D P 1 S Truncated lognormal-n NUREG/CR-6697, Att. C [11] 6.86 1.89 0.001 0.999 953 Ra-226+D P 1 S Truncated lognormal-n NUREG/CR-6697, AU. C 111] 8.17 1.7 0.001 0.999 3533 Sb-125 P 1 S Truncated lognormal-n NUREG/CR-6697, Att. C [11] - 5.94 3.22 0.001 0.999 applied to saturated and unsaturated zones.

D 3.31E+03 75h percentile value (from NR NR NR NR 3.80E+02 RESRAD (.mco) file created in the sensitivity analysis 4]) -

applied to contaminated zone Sr-90+D P 1 S Truncated lognormal-n NUREG/CR-6697, At. C 11] 3.45 2.12 0.001 0.999 32

Project: Yankee Rowe License Termination Calc. No. YA-CALC-01-002-03

Subject:

Derived Concentration Guideline Levels for Soil at the Yankee Rowe Site Page 13 of 28 Table 6 Input Parameters for Soil Derived Concentration Guideline Levels Resident Farmer Scenario Distribution's Statistical Parametered Mean Parameter (unit) Type" Priorityb Treatment 0 Value/Distribution Basis 1 2 3 4 (Median)

Tc-99 P 1 S Truncated lognormal-n NUREG/CR-6697, Att. C 11] - -0.67 3.16 0.001 0.999 applied to saturated and unsaturated zones.

D 4.28E+00 75m percentile value (from NR NR NR NR 5.10E-01 RESRAD (.mco) file created in the sensitivity analysis [4]) -

applied to contaminated zone only Th-229+D p _ S Truncated lognormal-n NUREG/CR-6697, Att. C [11] 8.68 3.62 0.001 0.999 5884 Th-230 p 1 S Truncated lognormai-n NUREG/CR-6697, Att. C [11] 8.68 3.62 0.001 0.999 5884 U-233 p 1 s Truncated lognormal-n NUREG/CR-6697, Att. C 11] 4.84 3.13 0.001 0.999 126 U-234 P 1 S Truncated lognormal-n NUREG/CR-6697, Att. C 11] 4.84 3.13 0.001 0.999 126 U-235+D P 1 S Truncated ognormal-n NUREG/CR-6697, Att. C 11] 4.84 3.13 0.001 0.999 126 Initial concentration of radionuclides present P 3 D 0 Ground water uncontaminated NR NR NR NR in groundwater (pCUI) I Calculation Times Time since placement of material (y) 3 D 0 . NR NR NR NR Time for calculations (y) P 3 D 0,1, 3,10,30,100, RESRAD Default NR NR NR NR

_ __ __ __ __ __ _ j 3 00 ,10 00 J _ _ _ _ _ _ _ _ _ _ _ _ i......... I _ _ _ _ _ _ _ _ I _ _ _ _

Contaminated Zone Area of contaminated zone (m2) p 2 D 13022 Site-specific- radiation control NR NR NR NR area [4]

Thickness of contaminated zone (m) P 2 S Uniform Minimum equal depth of soil 0.15 3.8 mixing layer (0.1 5m); maximum equal to depth to water table (3.8m) [14] - applied to all nuclides except C-14 and H-3 75th percentile value (from D 2.89E+00 RESRAD (.mco) file created in NR NR NR NR 1.98E+00 the sensitivity analysis 4]) -

applied to C-14 and H-3 only Length parallel to aquifer flow (m) P 2 D 129 Site-specific - diameter of circle NR NR NR NR with an area of 13022 m2 [41

Project: Yankee Rowe License Termination Calc. No. YA-CALC-01-002-03

Subject:

Derived Concentraon Guideline Levels for Soil at the Yankee Rowe Site Page 14 of 28 Table 6 Input Parameters for Soil Derived Concentration Guideline Levels Resident Farmer Scenario I I II Distribution's Statistical Parametersd Mean Parameter (unit) Type' l Priorityb Treatment' ValueJDistribution Basis 1 l 2 l 4 {Median}

Cover and Contaminated Zone Hydrological Data Cover depth (im) P 2 D 0 Site-specific - no cover assumed NR NR NR NR Density of contaminated zone (g/cm3) P 1 S Bounded Normal NUREG 6697 dist for site soil 1.5105 0.159 1.019 2.002 1.5105 type -sand 141 Contaminated zone erosion rate (m/y) P 2 D 8.5E-04 Calculated value based on site- NR NR NR NR specific slope of 2.9% [4]

Contaminated zone total porosity P 2 S Bounded Normal NUREG 6697 dist for site soil 0.43 0.06 0.2446 0.6154 0.43 type -sand 14]

Contaminated zone field capacity P 3 D 0.05 Site-specific value calculated NR NR NR NR 0.05 using Equation 4.4 in Ref. 12 [4]

Contaminated zone hydraulic conductivity P 2 S Beta NUREG 6697 dist for site soil 110 5870 1.398 1.842 2506 (m/y) type -sand [141 Contaminated zone b parameter P 2 S Bounded NUREG 6697 dist for site soil - 0.0253 0.216 0.501 1.90 0.975 Log Normal n type -sand [14]

Humidity in air (g/m3) P 3 D 6.1 Regional value. [4,13] NR NR NR NR Evapotranspiration coefficient P 2 S Uniform NUREG/CR-6697, Att. C 1 1 0.5 0.75 NR NR 0.625 Average annual wind speed (m/sec) P 2 D 2.03 Site-specific value calc. from site NR NR NR NR meteorological data 4]

Precipitation (m/y) P 2 D 1.2 Site-specific value calculated NR NR NR NR from site geographical area ppt.

._ _____ ______ ___________________ 1__ 41 Irrigation (m/y) B 3 S Uniform NUREG/CR-6697, Att C 0.252 0.618 NR NR 0.435 methodology [4, 11] _

Irrigation mode B 3 D Overhead Site-specific - overhead vs. ditch NR NR NR NR irrigation is standard practice in Eastem U. S.

Runoff coefficient P 2 D 0.6 NUREG/CR-6697, Att. C section NR NR NR NR 4.2 methodology (4, 11 I Watershed 2 area for nearby stream or pond P 3 D 7.77E+05 Site-specific- drainage area [4, NR NR NR NR (m) 1133 Accuracy for water/soil computations 3 D 1.OOE-03 RESRAD Default NR NR NR NR l l X  ;~~~~~~~~~ - a - J a .&

Saturated Zone Hydrological Data Density of saturated zone (g/CM 3 ) I P I 1 I S I Bounded Normal lNUREG 6697 dist for site soil l1.5105 0.159 l 1.019 l 2.002 l 1.5105 II I I ~~~~~--itype -sand (14] 1

Project: Yankee Rowe License Termination Calc. No. YA-CALC-01-002-03

Subject:

Derived Concentration Guideline Levels for Soil at the Yankee Rowe Site Page 15 of 28 Table 6 Input Parameters for Soil Derived Concentration Guideline Levels Resident Farmer Scenario Distribution's Statistical Parametersd Mean Parameter (unit) Typea Priorit? Treatmentf Value/Distribution Basis 1 2 3 4 {Median}

Saturated zone total porosity P 1 S Bounded Normal NUREG 6697 dist for site soil 0.43 0.06 0.2446 0.6154 0.43 type -sand [14]

Saturated zone effective porosity P 1 S Bounded Normal NUREG 6697 dist for site soil 0.383 0.0610 0.195 0.572 0.383 type -sand [14]

Saturated zone field capacity P 3 D 0.05 Calculated site-specific value [4] NR NR NR NR 0.05 using Equation 4.4 from [12]

Saturated zone hydraulic conductivity (m/y) P 1 S Beta NUREG 6697 dist for site soil 110 5870 1.398 1.842 2506 type -sand [14]

Saturated zone hydraulic gradient P 2 D 0.1 Site gradient [4] NR NR NR NR Saturated zone b parameter P 2 S Bounded NUREG 6697 dist for site soil - 0.0253 0.216 0.501 1.90 0.975 Log Normal n type -sand [141 Water table drop rate (m/y) P 3 D 1.OOE-03 RESRAD Default NR NR NR NR Well pump intake depth (mbelow water table) P 2 S Triangular NUREGICR-6697, Alt. C [11l 6 10 30 14.51 Model: Nondispersion (ND) or Mass-Balance P 3 D ND ND model recommended for NR NR NR NR (MB) contaminant areas > 1,000 m

[121 Well pumping rate (m3/y) P 2 5 Uniform Min, Max, median value based 957 1689 1323 on site irrigation and area and calculated according to NUREG/CR-6697, AtL C section

________________ 3.10 method. [4, 11]

Unsaturated Zone Hydrological Data Number of unsaturated zone strata P 3 D 1 Site-specific value NR NR NR NR Unsat. zone 1, thickness (m) P 1 S Uniform Assumes 0.15 to 3.8 m 0.01 3.65 1.82 contaminated zone thickness and 3.8 m depth to water table Unsat. zone 1, soil density (g/cm3) P 2 . Bounded Normal NUREG 6697 dist for6site soil 1.5105 0.159 1.019 2.002 1.5105 type -sand [14]

Unsat. zone 1, total porosity P 2 S Bounded Normal NUREG 6697 dist for site soil 0.43 0.06 0.2446 0.6154 0.43 type -sand [14 Unsat. zone 1, effective porosity P 2 S Bounded Normal NUREG 6697 dist for site soil 0.383 0.0610 0.195 0.572 0.383 type -sand [14]

Unsat. zone 1, field capacity P 3 D 0.05 Calculated site-specific value [4 NR NR NR NR 0.05 using Equation 4.4 from [12 1 1

Project: Yankee Rowe License Termination Caic. No. YA-CALC-01-002-03

Subject:

Derived Concentration Guideline Levels for Soil at the Yankee Rowe Site Page 16 of 28 Table 6 Input Parameters for Soil Derived Concentration Guideline Levels Resident Farmer Scenario Distribution's Statistical Parametersd Mean Parameter (unit) Typea Pdorityb Treatmentc Value/Distribution Basis 1 2 3 4 {Median}

Unsat. zone 1, hydraulic conductivity (m/y) P 2 S Beta NUREG 6697 dist for site soil 110 5870 1.398 1.842 2506 type -sand [14] _ _ _ __

Unsat. zone 1,soil-specific b parameter P 2 5 Bounded NUREG 6697 dist for site soil - 0.216 0.501 1.90 0.975 Log Normal n type -sand [14] 0.0253 Occupancy Inhalation rate (m3/y) B 3 D 8400 NUREG/CR-6697, Att. C [11] NR NR NR NR 3

Mass loading for inhalation (g/m ) P 2 S Continuous linear NUREG/CR-6697, At. C [11] _ 2.33E-05 Exposure duration B 3 D 30 RESRAD Default NR NR NR NR Indoor dust filtration factor P 2 S Uniform NUREG/CR-6697, Att. C [11] 0.15 0.95 - 0.55 Shielding factor, external gamma P 2 S Bounded lognormal-n NUREG/CR-6697, Aft C 111 -1.3 0.59 0.044 1 {0.2725}

D 3.98E41 75th percentile value (from NR NR NR NR 3.12E-1 RESRAD (.mco) file created in the sensitivity analysis [4])

Applied to Ag-1 08m, Cm-243, Co-60, Cs-134, Cs-137, Eu-152, Eu-1 54, Eu-1 55, Nb-94, and Sb-

_ _ __ _ _ __ __ __ __ __ __ ____ ___ _ _ __ _ __ _ _ _ _ _ __ __ _ _ __ __ __ __ _ 1 25 .

Fraction of time spent indoors B 3 D 0.6571 NUREG/CR-5512, Vol. 3 Table NR NR NR NR 6.87 [71 Fraction of time spent outdoors (on site) B 3 D 0.1181 NUREG/CR-5512, Vol. 3 Table NR NR NR NR 6.87 (outdoors + gardening) [7]

Shape factor flag, external gamma P 3 D Circular RESRAD Default - Circular NR NR NR NR contaminated zone assumed Ingestion, Dietary Fruits, vegetables, grain consumption (kg/y) B 2 D 112 NUREG/CR-5512, Vol. 3 (other NR NR NR NR lvegetables + fruits + grain) [7] l _ _ _ _

Leafy vegetable consumption (kgly) 8 3 D 21.4 NUREG/CR-5512, Vol. 3 [71 NR NR NR NR l-Milk consumption (y) B 2 D 233 NUREG/CR-5512, Vol. 3 7 NR NR NR NR l-Meat and poultry consumption (kg/y) B 3 D 65.1 NUREG/CR5512, Vol. 3 (beef + NR NR NR NR I__ _ _poultry)

_ _ _ _ _ __ [7]

Fish consumption (kg/y) B 3 D 20.6 NUREG/CR-5512, Vol. 371 NR NR NR NR l Other seafood consumption (kg/y) B 3 D 0.9 RESRAD Default NR NR NR NR Soil ingestion rate (gly) B 2 D 18.26 NUREG/CR-5512, Vol. 3 7] NR NR NR NR l

Project: Yankee Rowe Ucense Termination Calc. No. YA-CALC-1-002-03

Subject:

Derived Concentration Guideline Levels for Soil at the Yankee Rowe Site Page 17 of 28 Table 6 Input Parameters for Soil Derived Concentration Guideline Levels Resident Farmer Scenario Distribution's Statistical Parametersd Mean Parameter (unit) Type" Priority" Treatment' Value/Distribution Basis 1 2 3 4 {Median}

Drinking water intake (L/y) B 2 D 478.5 NUREG/CR-5512, Vol. 3 Table NR NR NR NR

_ _ _ _ _ _ _ _ _ __ _ __ _ __ __ _ __ _ 6.8 7 Mf _ _ _ _

Contamination fraction of drinking water P 3 D 1 RESRAD Default - all water NR NR NR NR

___________________________________ _________________assumed contaminated _____ ____

Contamination fraction of household water (if P 3 NA used) _ _ _ _ _ _ _ _ _

Contamination fraction of livestock water P 3 D I RESRAD Default - all water NR NR NR NR

_________________________________ ______ ________________assumed contaminated _____ ____ _____

Contamination fraction of irrigation water P 3 D I RESRAD Default - all water NR NR NR NR

_______________________________________ F_ 2_D _ contaminate 1NUREG/CR-5512,Vol.3[7]assumed l_Rr N__R l Contamination fraction of aquatic food P 2 D 1 NUREG/CR-5512, Vol. 3 [71 NR NR NR NR Contamination fraction of plant food P 3 D I NUREG/CR-5512, Vol. 3 7] NR NR NR NR Contamination fraction of meat P 3 D I NUREG/CR-5512, Vol. 3(7 NR NR NR NR Contamination fraction of milk P 3 D I INUREG/CR-5512, Vol. 3 7] NRNR NR NRi Ingestion, Non-Dietary Livestock fodder intake for meat (kg/day) M 3 D 27.1 NUREG/CR5512, Vol. 3 Table NR NR NR NR 6.87, beef cattle + poultry +

___________________________________ ________ ~~~~layer hen [71

]_ _ __ _ _ _ _

Livestock fodder intake for milk (kg/day) M 3 D 63.2 NUREGICR5512, Vol. 3 Table NR NR NR NR 6.87, forage + grain + hay [71 _ __ _

Livestock water intake for meat (Uday) M 3 D 50.6 NUREGICR5512, Vol. 3 Table NR NR NR NR 6.87, beef cattle + poultry +

layer hen [7]

Livestock water intake for milk (Uday) M 3 D 60 NUREG/CR5512, Vol. 3 Table NR NR NR NR

_______ ________ ~~~~~~~6.87 if _ _7_ __ _ _ _

Livestock soil intake (kg/day) M 3 D 0.5 RESRAD Default NR NR NR NR Mass loading for foliar deposition (g/m3) P 3 D 4.00E-04 NUREGICR-5512, Vol. 3 Table NR NR NR NR Depth__ a l- 6.87, gardnin 71[ilAtt.___

r C__

)2T

[11]_g 0nn 0 5.. _

Depth of soil mixing layer (n) P 2 1 S I Triangular HUEIR697 U C I 0 01506 _____ .2

Project: Yankee Rowe License Termination Caic. No. YA-CALC-01-002-03

Subject:

Derived Concentration Guideline Levels for Soil at the Yankee Rowe Site Page 18 of 28 Table 6 Input Parameters for Soil Derived Concentration Guideline Levels Resident Farmer Scenario Distribution's Statistical Parametersd Mean Parameter (unit) Typea Prioritl Treatmentc Value/Distribution Basis 1 2 3 4 {Median}

Depth of roots (m) P 1 $ uniform Min from NUREG/CR-6697,Att C 0.3 3.8 2.05E+00

[11]. Max is site specific depth to water table D 1.17E+00 25th percentile value (from NR NR NR NR RESRAD (.mco) file created in the sensitivity analysis [41)

Applied to Am-241, C-14, Cm-243, Cs-134, Cs137, H-3, Ni-63, Pu-238, Pu239, Pu-241, Sr-90, and Tc-99 Drinking water fraction from ground water P 3 D 1 RESRAD Default - all water NR NR NR NR assumed to be supplied from groundwater Household water fraction from ground water P 3 NA (if used)

Livestock water fraction from ground water P 3 D I RESRAD Default - all water NR NR NR NR assumed to be supplied from groundwater Irrigation fraction from ground water P 3 D 1 RESRAD Default - all water NR NR NR NR assumed to be supplied from groundwater _____

Wet weight crop yield for Non-Leafy (kg/M 2) P 2 S Truncated lognormal-n NUREG/CR-6697, Att. C[11I 0.56 0.48 0.001 0.999 1.75 Wet weight crop yield for Leafy (kg/m2) P 3 D 2.88921 NUREG/CR-5512, Vol. 3 Table NR NR NR NR I__

__ _ __6.87 Wet weight crop yield for Fodder (kg/m2) P 3 D 1.8868 NUREG/CR-5512, Vol. 3 Table NR NR NR NR 6.87 m Growing Season for Non-Leafy (years) P 3 D 0.246 NUREG/CR-5512, Vol. 3 Table NR NR NR NR Growing Season_ for_

______________________ (years) _ 3_ _ 0.123_ 6.87y Vol. 3 Table _ _ N7 _

Growing Season for Leafy (years) P 3 D 0.123 NUREG/CR-5512, Vol. 3 Table NR NR NR NR

________ ~~6.87 Mf _ _ _ __ _ _ _ _

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

________ation F t f L y3R -56.87 a Translocation Factor for Non-Leafy P 3 D 0.1 NUREG/CR-5512, Vol. 3 Table NR NR NR NR

_ _ _ __ __ _ __ _ __ __ __ _ __ __ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 6 .87 Translocation Factor for Leafy P 3 D 1 NUREG/CR-5512, Vol. 3 Table NR NR NR NR

_ ___ _ __ _ __ __ _ _ _ ___ _ _ _ _ _ _ _ __ __ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 6 .87 [71 _ __ _

Translocation Factor for Fodder P 13 D 1 NUREGICR-551 2,Vol. 3 Table NR NR NR NR

Project: Yankee Rowe License Termination Calc. No. YA-CALC-01-002-03

Subject:

Derived Concentration Guideline Levels for Soil at the Yankee Rowe Site Page 19 of 28 Table 6 Input Parameters for Soil Derived Concentration Guideline Levels Resident Farmer Scenario Distribution's Statistical Parametersd Mean Parameter (unit) Type' Priorityb Treatmentc Value/Distribution Basis 1 l 2 3 4 {Median)

Weathering Removal Constant forVegetation P 2 S Triangular NUREG/CR-6697, Att. C[11] 5.1 18 84 33 (ily) _ _ _ _ _

Wet Foliar Interception Fraction for Non-Leafy P 3 D 0.35 NUREG/CR-5512, Vol. 3 Table NR NR NR NR 6.87 [7M____

Wet Foliar Interception Fraction for Leafy P 2 S Triangular NUREG/CR-6697, Att. C [11] 0.06 0.67 0.95 0.58 Wet Foliar Interception Fraction for Fodder P 3 D 0.35 NUREGICR-5512, Vol. 3 Table NR NR NR NR Dry____6 Irt 6.87F f L0E 2 TN Dry Foliar Interception Fraction for Non-Leafy P 3 D 0.35 NUREG/CR-5512, Vol. 3Table NR NR NR NR 6.8 [7 Dry Foliar Interception Fraction for Leafy P 3 D 0.35 NUREG/CR-5512, Vol. 3Table NR NR NR NR

______ ~~~~~~~~~6.87

[7]

Dry Foliar Interception Fraction for Fodder P 3 D 0.35 NUREGICR-5512, Vol. 3 Table NR NR NR NR m6.87 Storage times of contaminated foodstuffs (days):

Fruits, non-leafy vegetables, and grain Leafy vegetables B

B 3

3 D

D 14 I

Ta6.87 NUREG/CR-5512, Vol. 3 Table

[

NUREGICR-5512, Vol. 3 Table NR NR NR NR

___NR _ T NR NR NR NR NR

____l_NR_l

______ ________ ~ ~~6.87

[7M_ _ _ _

Milk B 3 D 1 NUREGICR-5512, Vol. 3 Table NR NR NR NR

__ __ _ __ _ __ _ __ _ __ __ _ __ _ __ _ __ _ __ _ _ _ _ _ _ _ _ _ _ _ _6 .87 [7M_ _ _ _

Meat and poultry B 3 D . 20 NUREG/CR-5512, Vol. 3 Table NR NR NR NR 6.87 (holdup period for beef) [7]

Fish B 3 D 7 RESRAD Default NR NR NR NR Crustacea and mollusks B 3 D 7 RESRAD Default NR NR NR NR Well water B 3 D 1 RESRAD Default NR NR NR NR Surface water I B [ 3 D I I JRESRAD Default I NR NR [ NR I NR I Livestock fodder j B j 3 D j 45 IRESRAD Default I NR NR NR NR I Special Radionuclides (C-14)

C-12 concentration in water (g/cm3) P 3 D 2.OOE-05 RESRAD Default NR J NR NR l NR C-12 concentration in contaminated soil P 3 D 3.00E-02 RESRAD Default NR l NR NR l NR (9/9) I I. I Fraction of vegetation carbon from soil P 3 D 2.OOE-02 RESRAD Default NR NR NR NR l Fraction of vegetation carbon from air P 3 D 9.80E-01 RESRAD Default J NR l NR I NR NR l

Project: Yankee Rowe License Termination Calc. No. YA-CALC-01-002-03

Subject:

Derived Concentration Guideline Levels for Soil at the Yankee Rowe Site Page 20 of 28 Table 6 Input Parameters for Soil Derived Concentration Guideline Levels Resident Farmer Scenario Distribution's Statistical Parametersd Mean Parameter (unit) Type' Priority Treatment 0 Value/Distribution Basis 1 2 3 4 (Median)

C-14 evasion layer thickness insoil (m) P 2 D 4.27E-01 75th percentile value (from NR NR NR NR {3.OOE-01)

RESRAD (.mco) file created in SA [4]) Applied only to C-14 C-14 evasion flux rate from soil (1/sec) P 3 D 7.OOE-07 RESRAD Default NR NR NR NR C-12 evasion flux rate from soil (1/sec) P 3 D 1.OOE-10 RESRAD Default NR NR NR NR Fraction of grain in beef cattle feed B 3 D 0.2500 NUREG/CR-6697, At. B [11 NR NR NR NR Fraction of grain in milk cow feed B 3 D 0.1000 NUREG/CR-6697, Att. B [11] NR NR NR NR Inhalation Exposure Dose Conversion Factors (mrem/pCi)

Ac-227+D M 3 D 6.72E+00 RESRAD library: Dose NR NR NR NR Conversion Factors from [151 Ag-1 08m M 3 D 2.83E-04 [15] NR NR NR NR Am-241 M 3 D 4.44E-01 [15] NR NR NR NR Am-243+D M 3 D 4.40E-01 [15] NR NR NR NR C-14 M 3 D 2.09E-06 [15] NR NR NR NR Cm-243 M 3 D 3.07E-41 (15] NR NR NR NR Co-60 M 3 D 2.19E-04 [15] NR NR NR NR Cs-134 M 3 D 4.63E-05 (15] NR NR NR NR Cs-1 37+D M 3 D 3.19E-05 [15] NR NR NR NR Eu-152 M 3 D 2.21 E-04 [15] NR NR NR NR Eu-154 M 3 D 2.86E-04 [15] NR NR NR NR Eu-155 M 3 D 4.14E-05 [15] NR NR NR NR Fe-55 M 3 D 2.69E-06 (151 NR NR NR NR Gd-1 52 M 3 D 2.43E-41 [15] NR NR NR NR H-3 M 3 D 6.40E-08 [15] NR NR NR NR Nb-94 M 3 D 4.14E-04 [15] NR NR NR NR Ni-63 M 3 D 6.29E-06 [15] NR NR NR NR Np-237+D M 3 D 5.40E-01 [15] NR NR NR NR Pa-231 M 3 D 1.28E+00 [15] NR NR NR NR Pb-210+D M 3 D 1.38E-02 [15] NR NR NR NR Pu-238 M 3 D 3.92E-01 [15] NR NR NR NR Pu-239 M 3 D 4.29E-01 [15] NR NR NR NR

Project: Yankee Rowe Ucense Termination Calc. No. YA-CALC-01-002-03

Subject:

Denved Concentration Guideline Levels for Soil at the Yankee Rowe Site Page 21 of 28 Table 6 Input Parameters for Soil Derived Concentration Guideline Levels Resident Farmer Scenario Distributon's Statistical Parametersd Mean Parameter (unit) Type" Priorityb Treatmentc Value/Distribution Basis 1 2 3 4 (Median}

Pu-241+D M 3 D 8.25E-03 [15] NR NR NR NR Ra-226+D M 3 D 8.60E-03 [15] NR NR NR NR Sb-125 M 3 D 1.22E-05 [15] NR NR NR NR Sr-90+D M 3 D 1.31E-03 [15] NR NR NR NR Tc-99 M 3 D 8.33E-06 [15] NR NR NR NR Th-229+D M 3 D 2.16E+00 [151 NR NR NR NR Th-230 M 3 D 3.26E-01 [15] NR NR NR NR U-233 M 3 D 1.35E-01 (15] NR NR NR NR U-234 M 3 D 1.32E-01 [15] NR NR NR NR U-235+D M 3 D 1.23E-01 [15] NR NR NR NR Ingestion Exposure Dose Conversion Factors (mrem/pCi)

Ac-227+D M 3 D 1.48E-02 RESRAD library: Dose NR NR NR NR Conversion Factors from [151 Ag-108m M 3 D 7.62E-06 [15] NR NR NR NR Am-241 M 3 D 3.64E-03 [15] NR NR NR NR Am-243+D M 3 D 3.63E-03 [15] NR NR NR NR C-14 M 3 D 2.09E-06 [15] NR NR NR NR Cm-243 M 3 D 2.51 E-03 [15] NR NR NR NR Co-60 M 3 D 2.69E-05 [15] NR NR NR NR Cs-134 M 3 D 7.33E-05 [15] NR NR NR NR Cs-137+D M 3 D 5.OOE-05 [15] NR NR NR NR Eu-152 M 3 D 6.48E-06 [15] NR NR NR NR Eu-154 M 3 D 9.55E-06 [15] NR NR NR NR Eu-155 M 3 D 1.53E-06 [15] NR NR NR NR Fe-55 M 3 D 6.07E-07 115] NR NR NR NR Gd-152 M 3 D 1.61 E-04 [15] NR NR NR NR H-3 M 3 D 6.40E-08 [15] NR NR NR NR Nb-94 M 3 D 7.14E-06 [15] NR NR NR NR Ni-63 M 3 D 5.77E-07 [15] HR NR NR NR Np-237+D M 3 D 4.44E-03 [15] HR HR HR HR

Project: Yankee Rowe License Termination CaIc. No. YA-CALC-1-002-03

Subject:

Derived Concentration Guideline Levels for Soil at the Yankee Rowe Site Page 22 of 28 Table 6 Input Parameters for Soil Derived Concentration Guideline Levels Resident Farmer Scenario Distribution's Statistical Parameterad Mean Parameter (unit) Typea Priorityb Treatment' Value/Distribution Basis 1 2 3 4 {Median}

Pa-231 M 3 D 1.06E-02 [15] NR NR NR NR Pb-210+D M 3 D 5.37E-03 [15] NR NR NR NR Pu-238 M 3 D 3.20E-03 [15] NR NR NR NR Pu-239 M 3 D 3.54E-03 [15] NR NR NR NR Pu-241+D M 3 D 6.85E-05 (151 NR NR NR NR Ra-226+D M 3 D 1.33E-03 [15] NR NR NR NR __

Sb-125 M 3 D 2.81 E-06 [15] NR NR NR NR Sr-90+D M 3 D t.53E-04 [15] NR NR NR NR Tc-99 M 3 _ 1.46E-06 [15] NR NR NR NR Th-229+D M 3 D 4.03E-03 [15] NR NR NR NR Th-230 M 3 D 5.48E-04 [15] NR NR NR NR U-233 M 3 D 2.89E-04 (15] NR NR NR NR U-234 M 3 D 2.83E-04 [15] NR NR NR NR U-235+D M 3 D 2.67E-04 [15] NR NR NR NR Plant Transfer Factors (pCVg plant per pCilg soil)

Ac-227+D P 1 S Truncated lognommal-n NUREG/CR-6697, AtL C11I -6.91 1.1 0.001 0.999 (1.0E-03)

Ag-108m P 1 S Truncated lognormaln NUREG/CR-6697, Att. C 11l] -5.52 0.9 0.001 0.999 (4.0E-03)

Am-241 P 1 D 1.83E-03 75e percentile value (from NR NR NR NR 1.48E-03 RESRAD (.mco) file created in the sensitivity analysis [4])

Applied also inthe Pu-241 RESRAD run _

Am-243+D P 1 S Truncated lognormal-n NUREG/CR-6697, AU. C [11] -6.91 0.9 0.001 0.999 {1.0E-03)

C-14 P 1 S Truncated lognormal-n NUREG/CR-6697, Att. C [11] -0.36 0.9 0.001 0.999 {7.0E-01)

Cm-243 P 1 D 1.83E-03 75 percentile value (from NR NR NR NR 1.48E-03 RESRAD (.mco) file created in the sensitivity analysis [4)

Co-60 P 1 D 1.46E-01 75 h percentile value (from NR NR NR NR 1.18E-01 RESRAD (.mco) file created in the sensitivity analysis 141)

Cs-1 34 P 1 D 7.82E-02 75e percentile value (from NR NR NR NR 6.48E-02 RESRAD (.mco) file created In the sensitivitY analysis [41)

Project: Yankee Rowe License Termination Calc. No. YA-CALC-01-002-03

Subject:

Derived Concentration Guideline Levels for Soil at the Yankee Rowe Site Page 23 of 28 Table 6 Input Parameters for Soil Derived Concentration Guideline Levels Resident Farmer Scenario Distribution's Statistical Parametersd Mean Parameter (unit) Type' Priorityb Treatment' Value/Distribution Basis 1 2 3 4 {Median}

Cs-137+D P 1 D 7.82E-02 75 percentile value (from NR NR NR NR 6.48E-02 RESRAD (.mco) file created in the sensitivity analysis [4])

Eu-152 P 1 S Truncated lognormal-n NUREG/CR-6697, At. C (11 -6.21 1.1 0.001 0.999 {2.0E-03?

Eu-154 P 1 S Truncated lognormal-n NUREG/CR-6697, Att. C [11] -6.21 1.1 0.001 0.999 {2.OE-03}

Eu-I 55 P 1 D 4.21 E-03 75" percentile value (from NR NR NR NR 3.60E-3 RESRAD (.mco) file created in

__________________ the sensitivity analysis [4])

Fe-55 P 1 D 1.83E-03 75" percentile value (from NR NR NR NR 1.48E-03 RESRAD (.mco) file created In the sensitivity analysis [4]) . -

Gd-152 P 1 S Truncated lognormal-n NUREG/CR-6697, Att. C [11] -6.21 1.1 0.001 0.999 {2.OE-03}

H-3 P 1 S Truncated lognormal-n NUREG/CR-6697, Att. C [11] 1.57 1.1 0.001 0.999 *4.8E+00}

Nb-94 P 1 S Truncated lognommal-n NUREG/CR-6697, Att. C [111 -4.61 1.1 0.001 0.999 {1.OE-02}

Ni-63 P 1 D 9.11E-02 75" percentile value (from NR NR NR NR 7.37E-02 RESRAD (.mco) file created in the sensitivity analysis [4]) _

Np-237+D P 1 S Truncated lognormal-n NUREG/CR-6697, At. C 11] -3.91 0.9 0.001 0.999 {2.OE-02}

Pa-231 P 1 S Truncated lognormal-n NUREG/CR-6697, Att. C li] -4.61 1.1 0.001 0.999 {1.OE-02}

Pb-210+D P 1 S Truncated lognormal-n NUREG/CR-6697, Att. C [11] -5.52 0.9 0.001 0.999 (4.OE-03}

Pu-238 P 1 D 1.83E-03 75' percentile value (from NR NR NR NR 1.48E-03 RESRAD (.mco) file created in the sensitivity analysis [4])

Pu-239 P 1 D 1.83E-03 75"' percentile value (from NR NR NR NR 1.48E-03 RESRAD (.mco) file created in the sensitivity analysis [41)

Pu-241+D P 1 S Truncated lognormal-n NUREG/CR-6697, At. C ] -6.91 0.9 0.001 0.999 {1.OE-03}

Ra-226+D P 1 S Truncated lognormal-n NUREG/CR-6697, Alt. C [11] -3.22 0.9 0.001 0.999 {4.OE-02}

Sb-125 P 1 S Truncated lognommal-n NUREG/CR-6697, Alt. C [11] -4.61 1.0 0.001 0.999 (1.OE-02}

Sr-90+D P 1 D 5.90E-01 75 percentile value (from NR NR NR NR 4.88E-01 RESRAD (.mco) file created in the sensitivity analysis [4])

Tc-99 P 1 D 9.16E+00 75"' percentile value (from NR NR NR NR 7.41 E+00 RESRAD (.mco) file created in the sensitivity analysis [4])

Project: Yankee Rowe Ucense Termination CaIc. No. YA-CALC-01-002-03

Subject:

Derived Concentration Guideline Levels for Soil at the Yankee Rowe Site Page 24 of 28 Table 6 Input Parameters for Soil Derived Concentration Guideline Levels Resident Farmer Scenario Distribution's Statistical Parametersd Mean Parameter (unit) Typea Priority Treatmentc Value/Distribution Basis 1 2 3 4 (Median)

Th-229+D P 1 S Truncated lognormal-n NUREG/CR-6697, Att. C [11] -6.91 0.9 0.001 0.999 {1.OE-03)

Th-230 P 1 S Truncated lognommal-n NUREG/CR-6697, Att. C [11] -6.91 0.9 0.001 0.999 {i.OE-03}

U-233 P 1 S Truncated lognormal-n NUREG/CR-6697, Att. C [1 1 -6.21 0.9 0.001 0.999 {2.OE-03}

U-234 P 1 S Truncated lognormal-n NUREG/CR-6697, Att. C [11] -6.21 0.9 0.001 0.999 {2.OE-03}

U-235+D P 1 S Truncated lognormal-n NUREGICR-6697, Att. C [II] -6.21 0.9 0.001 0.999 {2.OE-03)

Meat Transfer Factors (pCi/kg per pCd)

Ac-227+D P 2 S Truncated lognormal-n NUREG/CR-6697, Att. C [11] -10.82 1.0 0.001 0.999 {2.OE-05}

Ag-108m P 2 S Truncated lognormal-n NUREG/CR-6697, Att. C [11] -6.21 0.7 0.001 0.999 {2.OE-03}

Am-241 P 2 S Truncated lognormal-n NUREG/CR-6697, At. C [11] -9.90 0.2 0.001 0.999 {5.OE-05)

Am-243+D P 2 S Truncated lognommal-n NUREG/CR-6697, At. C [11] -9.90 0.2 0.001 0.999 {5.OE-05)

C-14 P 2 S Truncated lognommal-n NUREG/CR-6697, At. CL11] -3.47 1.0 0.001 0.999 {3.1E-02)

Cm-243 P 2 S Truncated lognormal-n NUREG/CR-6697, At. C 11] -10.82 1.0 0.001 0.999 {2.OE-05}

Co-60 P 2 D 5.86E-02 75 percentile value (from NR NR NR NR 4.85E-02 RESRAD (.mco) file created In the sensitivity analysis [4])

Cs-I 34 P 2 D 6.51 E-02 75 percentile value (from NR NR NR NR 5.38E-02 RESRAD (.mco) file created In the sensitivity analysis [4])

Cs-1 37+D P 2 D 6.51 E-02 75th percentile value (from NR NR NR NR 5.38E-02 RESRAD (.mco) file created in the sensitivity analysis [41)

Eu-152 P 2 S Truncated lognormal-n NUREG/CR-6697, At. C [11 -6.21 1.0 0.001 0.999 {2.OE-03}

Eu-154 P 2 S Truncated lognormal-n NUREG/CR-6697, Att. C (Ii] -6.21 1.0 0.001 0.999 {2.OE-03}

Eu-i 55 P 2 S Truncated lognormal-n NUREG/CR-6697, Att. C l] -6.21 1.0 0.001 0.999 {2.OE-03}

Fe-55 P 2 D 3.91 E-02 75" percentile value (from NR NR NR NR 3.23E-02 RESRAD (.mco) file created in the sensitivity analysis [41)

Gd-152 P 2 S Truncated lognommal-n NUREG/CR-6697, At. C 11] -6.21 1.0 0.001 0.999 {2.OE-03}

H-3 P 2 S Truncated lognommal-n NUREG/CR-6697, Att. C 11] -4.42 1.0 0.001 0.999 {1.2E-02}

Nb-94 P 2 S Truncated lognormal-n NUREG/CR-6697, Att. C [11] -13.82 0.9 0.001 0.999 {1.0E-06}

Ni-63 P 2 S Truncated lognormal-n NUREG/CR-6697, Att C [11] -5.30 0.9 0.001 0.999 {5.OE-03}

Np-237+D P 2 S Truncated lognormal-n NUREG/CR-6697, Att. C [11] -6.91 0.7 0.001 0.999 {1.OE-03}

Project: Yankee Rowe Ucense Termination Calc. No. YA-CALC-01-002-03

Subject:

Derived Concentration Guideline Levels for Soil at the Yankee Rowe Site Page 25 of 28 Table 6 Input Parameters for Soil Derived Concentration Guideline Levels

_______ Resident Farmer Scenario Distribution'sStatistical Parametersd Mean Parameter (unit) Typea Priority Treatment' Value/Distribution Basis 1 2 3 4 (Median)

Pa-231 P 2 S Truncated lognofmal-n NUREG/CR-6697, Att. C [11] -12.21 1.0 0.001 0.999 {5.OE-06}

Pb-210+D P 2 S Truncated ognormal-n NUREG/CR-6697, Att C11l] -7.13 0.7 0.001 0.999 {8.OE-04}

Pu-238 P 2 S Truncated lognormal-n NUREG/CR-6697, Att. C [11] -9.21 0.2 0.001 0.999 (1.OE-04)

Pu-239 P 2 S Truncated lognormal-n NUREG/CR-6697, At. C l1I] -9.21 0.2 0.001 0.999 (1.OE-04)

Pu-241 +D P 2 S Truncated lognormal-n NUREG/CR-6697, At. C [11] -9.21 0.2 0.001 0.999 (1.OE-04)

Ra-226+D P 2 5 Truncated lognormal-n NUREG/CR-6697, Att. C [11] -6.91 0.7 0.001 0.999 {1.OE-03}

Sb-1 25 P 2 S Truncated lognormal-n NUREG/CR-6697, Att C 11] -6.91 0.9 0.001 0.999 {1.OE-03}

Sr-90+D P 2 S Truncated lognormal-n NUREG/CR-6697, Att. C 11] -4.61 0.4 0.001 0.999 {1.OE-02)

Tc-99 P 2 S Truncated lognormal-n NUREGICR-6697, Att. C I] -9.21 0.7 0.001 0.999 (1.0E-04)

Th-229+D P 2 S Truncated lognormal-n NUREG/CR-6697, At. C l ] -9.21 1.0 0.001 0.999 (1.0E-04)

Th-230 P 2 S Truncated lognormal-n NUREGICR-6697, Att C [11] -9.21 1.0 0.001 0.999 {1.OE-04}

U-233 P 2 S Truncated lognormal-n NUREG/CR-6697, Att. C 11] -7.13 0.7 0.001 0.999 {8.OE-04)

U-234 P 2 S Truncated lognormal-n NUREG/CR-6697, Att. C 11] -7.13 0.7 0.001 0.999 (8.0E-04)

U-235+D P 2 S Truncated lognormal-n NUREG/CR-6697, Att. C 11] -7.13 0.7 0.001 0.999 (8.0E-04)

Milk Transfer Factors (pCUL per pCUd)

Ac-227+D P 2 S Truncated lognormal-n NUREG/CR-6697, Att. C [11] -13.12 0.9 0.001 0.999 (2.OE-06}

Ag-108m P 2 S Truncated lognormal-n NUREG/CR-6697, Att. C [11] -5.12 0.7 0.001 0.999 (6.0E-03)

Arn-241 P 2 S Truncated lognormal-n NUREG/CR-6697, At. C [11] -13.12 0.7 0.001 0.999 (2.0E-06)

Arn-243+D P 2 S Truncated lognormal-n NUREG/CR-6697, Att. C(11] -13.12 0.7 0.001 0.999 (2.0E-06)

C-14 P 2 S Truncated lognormal-n NUREG/CR-6697, At. C [11] -4.4 0.9 0.001 0.999 (1.2E-02)

Cm-243 P 2 S Truncated lognormal-n NUREG/CR-6697, At. C [11] -13.12 0.9 0.001 0.999 (2.0E-06)

Co-60 P 2 S Truncated lognormal-n NUREG/CR-6697, At. C 11] -6.21 0.7 0.001 0.999 {2.OE-03)

Cs-134 P 2 D 1.39E-02 75 percentile value (from NR NR NR NR 1.12E-02 RESRAD (.mco) file created in t he sensitivity analysis [4])

Cs-137+D P 2 D 1.39E-02 75' percentile value (from NR NR NR NR 1.12E-02 RESRAD (.mco) file created In the sensitivity analysis [4])

Eu-1 52 P 2 S Truncated lognommal-n NUREG/CR-6697, AU. C [II] -9.72 0.9 0.001 0.999 (6.0E-05)

Eu-1 54 P 2 5 Truncated lognormal-n NUREG/CR-6697, Att. C [11] -9.72 0.9 0.001 0.999 {6.OE-05)

Eu-155 P 2 S Truncated lognormal-n NUREG/CR-6697, At. C [1] -9.72 0.9 0.001 0.999 (6.OE-05}

Project: Yankee Rowe License Termination Calc. No. YA-CALC-01-002-03

Subject:

Derived Concentration Guideline Levels for Soil at the Yankee Rowe Site Page 26 of 28 Table 6 Input Parameters for Soil Derived Concentration Guideline Levels Resident Farmer Scenario Distribution's Statistical Parametersd Mean Parameter (unit) Typea Priorit? Treatmentc Value/Distribution Basis 1 2 3 4 {Median)

Fe-55 P 2 S Truncated Iognormal-n NUREG/CR-6697, Att. C II] -8.11 0.7 0.001 0.999 (3.0E-04}

Gd-152 P 2 S Truncated lognormal-n NUREG/CR-6697, Att. C [11] -9.72 0.9 0.001 0.999 {6.OE-051 H-3 P 2 S Truncated lognormal-n NUREG/CR-6697, Att. C [1I] -4.6 0.9 0.001 0.999 {1.OE-02}

Nb-94 P 2 S Truncated lognormal-n NUREG/CR-6697, Att. C 11] -13.12 0.7 0.001 0.999 {2.OE-06}

Ni-63 P 2 D 3.21 E-02 75 percentile value (from NR NR NR NR 2.542-02 RESRAD (.mco) file created In the sensitivity analysis [41) _

Np-237+D P 2 S Truncated lognormal-n NUREG/CR-6697, Att. C 11] -11.51 0.7 0.001 0.999 {1.OE-05}

Pa-231 P 2 ITruncated lognormal-n NUREG/CR-6697, Att. C [lI] -12.21 1 0.9 0.001 0.999 {5.OE-06}

Pb-210+D P 2 S Truncated lognormal-n NUREG/CR-6697, Att. C 11] -8.11 0.9 0.001 0.999 {3.OE-04}

Pu-238 P 2 S Truncated lognormal-n NUREG/CR-6697, Att. C 111] -13.82 0.5 0.001 0.999 (102E-06}

Pu-239 P 2 S Truncated lognormal-n NUREG/CR-6697, Att. C 111] -13.82 0.5 0.001 0.999 (1.OE-06}

Pu-241+D P 2 S Truncated lognormal-n NUREG/CR-6697, Att. C [11] -13.82 0.5 0.001 0.999 {1.OE-06}

Ra-226+D P 2 S Truncated lognormal-n NUREG/CR-6697, Att. C 11] -6.91 0.5 0.001 0.999 {1.OE-03}

Sb-125 P 2 S Truncated lognormal-n NUREG/CR-6697, Att. C 1 ] -9.72 0.9 0.001 0.999 {6.OE-05}

Sr-90+D P 2 S Truncated lognommal-n NUREG/CR-6697, Att. C 11] -6.21 0.5 0.001 0.999 {2.OE-03)

Tc-99 P 2 5 Truncated lognormal-n NUREG/CR-6697, Att. C 11] -6.91 0.7 0.001 0.999 (1.OE-03}

Th-229+D P 2 S Truncated lognomnal-n NUREG/CR-6697, Att. C(11] -12.21 0.9 0.001 0.999 {5.OE-06)

Th-230 P 2 S Truncated lognormal-n NUREG/CR-6697, Att. C [11] -12.21 0.9 0.001 0.999 (5.0E-06)

U-233 P 2 S Truncated lognormal-n NUREG/CR-6697, At. C [11] -7.82 0.6 0.001 0.999 (4.0E-04)

U-234 P 2 S Truncated lognormal-n NUREG/CR-6697, Att. C [11] -7.82 0.6 0.001 0.999 {4.0E-04}

U-235+D P 2 S Truncated lognormal-n NUREG/CR-6697, Att. C [11] -7.82 0.6 0.001 0.999 {4.OE-04}

Bioaccumulation Factors for Fish (pCikg per pCVL)

Ac-227+D P 2 5 Lognormal-n NUREG/CR-6697, At. C [11] 2.7 1.1 1.52+01 Ag-108m P 2 S Lognormal-n NUREG/CR-6697, At. C [11] 1.6 1.1 5.0E+00 Am-241 P 2 S Lognormal-n NUREG/CR-6697, Att. C [11] 3.4 1.1 3.0E+01 Am-243+D P 2 S Lognormal-n NUREGICR-6697, Att. C [11] 3.4 1.1 3.0E+01 C-14 P 2 S Lognormal-n NUREG/CR-6697, Att. C [11] 10.8 1.1 I 4.9E+04 Cm-243 P 2 S Lognormal-n NUREG/CR-6697, Att. C [11] 3.4 1.1 _ 3.0E+01 Co-60 P 2 S Lognorrnal-n NUREG/CR-6697, AUt. 0([11] 5.7 1.1 _____N6I ___ 3.02+02

Project: Yankee Rowe Ucense Termination Calc. No. YA-CALC-01-002-03

Subject:

Derived Concentration Guideline Levels for Soil at the Yankee Rowe Site Page 27 of 28 Table 6 Input Parameters for Soil Derived Concentration Guideline Levels Resident Farmer Scenario Distribution's Statistical Parametersd Mean Parameter (unit) Type' Priority Treatmen Value/Distributon Basis 1 2 3 4 {Median}

Cs-1 34 P 2 S Lognormal-n NUREG/CR-6697, At. C [II] 7.6 0.7 2.0E+03 Cs-137+D P 2 S Lognormal-n NUREG/CR-6697, At. C [111 7.6 0.7 2.OE+03 Eu-152 P 2 S Lognormal-n NUREG/CR-6697, At. C [I1] 3.9 1.1 I 4.9E+01 Eu-1 54 P 2 S Lognormal-n NUREG/CR-6697, At. C [111 3.9 1.1 4.9E+01 Eu-155 P 2 S Lognormal-n NUREG/CR-6697, At. C [II] 3.9 1.1 4.9E+01 Fe-55 P 2 S Lognormal-n NUREG/CR-6697, Att. C (111 5.3 1.1 2,0E+02 Gd-152 P 2 S Lognormal-n NUREG/CR-6697, Att. C [11] 3.2 1.1 2.5E+01 H-3 P 2 S Lognormal-n NUREG/CR-6697, At. C [111 0 0.1 1.OE+00 Nb-94 P 2 S Lognormal-n NUREG/CR-6697, Att. C [1] 5.7 1.1 3.OE+02 Ni-63 P 2 S Lognormal-n NUREG/CR-6697, At. C 111 4.6 1.1 9.9E+01 Np-237+D P 2 S Lognormal-n NUREG/CR-6697, Att. C [Ii] 3.4 1.1 3.OE+01 Pa-231 P 2 S Lognormal-n NUREG/CR-6697, At. C [I] 2.3 1.1 1.OE+01 Pb-210+D P 2 S Lognommal-n NUREG/CR-6697, At. C [11] 5.7 1.1 3.OE+02 Pu-238 P 2 S Lognormaln NUREG/CR-6697, AtL C [I 3.4 1.1 3.OE+01 Pu-239 P 2 S Lognormal-n NUREG/CR-6697, Alt. C [I] 3.4 1.1 3.0E+01 Pu-241+D P 2 S Lognormal-n NUREG/CR-6697, Alt. C [111 3.4 1.1 3.OE+01 Ra-226+D P 2 S Lognormal-n NUREG/CR-6697, At. C [II] 3.9 1.1 4.9E+01 Sb-125 P 2 S Lognormal-n NUREG/CR-6697, At. C [II] 4.6 1.1 9.9E+01 Sr-90+D P 2 S Lognormal-n NUREG/CR-6697, Alt. C [II) 4.1 1.1 6.0E+01 Tc-99 P 2 S Lognormal-n NUREG/CR-6697, AtL C [111 3 1.1 2.0E+01 Th-229+D P 2 S Lognormal-n NUREG/CR-6697, Att. C [II] 4.6 1.1 9.9E+01 Th-230 P 2 S Lognormal-n NUREG/CR-6697, AtL C [1] 4.6 1.1 9.9E+01 U-233 P 2 S Lognormal-n NUREG/CR-6697, Att. C [11] 2.3 1.1 1.OE+01 U-234 P 2 5 Lognormal-n NUREG/CR-6697, Att. C [11 2.3 1.1 i.OE+01 U-235+D P 2 S Lognormal-n NUREG/CR-6697, AtL C [II] 2.3 1.1 1.02+01 Bioaccumulation Factors for Crustacea/ Mollusks (pCikg per pCL)

Ac-227+D P 3 D 1.OOE+03 RESRAD Default NR NR NR NR l Ag-108m P 3 0 7.70E+02 RESRAD Default NR NR l Am-241 P 3 D 1.00E+03 RESRAD Default NR NR NR NR

Project: Yankee Rowe License Termination Calc. No. YA-CALC-01-002-03

Subject:

Derived Concentration Guideline Levels for Soil at the Yankee Rowe Site Page 28 of 28 Table 6 Input Parameters for Soil Derived Concentration Guideline Levels Resident Farmer Scenario Distribution's Statistical Parametersd Mean Parameter (unit) Typea Priorit? Treatmentc Value/Distribution Basis 1 2 3 4 {Median}

Am-243+D P 3 D 1.OOE+03 RESRAD Default NR NR NR NR C-14 P 3 D 9.10E+03 RESRAD Default NR NR NR NR Cm-243 P 3 D 1.OOE+03 RESRAD Default NR NR NR NR Co-60 P 3 D 2.00E+02 RESRAD Default NR NR NR NR Cs-134 P 3 D 1.OOE+02 RESRAD Default NR NR NR NR Cs-137+D P 3 D I.OOE+02 RESRAD Default NR NR NR NR Eu-152 P 3 D 1.00E+03 RESRAD Default NR NR NR NR Eu-154 P 3 D 1.00E+03 RESRAD Default NR NR NR NR Eu-155 P 3 D 1.00E+03 RESRAD Default NR NR NR NR Fe-55 P 3 D 3.20E+03 RESRAD Default NR NR NR NR Gd-152 P 3 D 1.00E+03 RESRAD Default NR NR NR NR H-3 P 3 D 1.00E+00 RESRAD Default NR NR NR NR Nb-94 P 3 D 1.00E+02 RESRAD Default NR NR NR NR Ni-63 P 3 D 1.00E+02 RESRAD Default NR NR NR NR Np-237+D P 3 D 4.OOE+02 RESRAD Default R NR NR NR Pa-231 P 3 D 1.10E+02 RESRAD Default NR NR NR NR Pb-210+D P 3 D 1.00E+02 RESRAD Default NR NR NR NR Pu-238 P 3 D 1.0E+02 RESRAD Default NR NR NR NR Pu-239 P 3 D 1.00E+02 RESRAD Default NR NR NR NR Pu-241+D P D 1.OOE+02 RESRAD Default NR NR NR NR Ra-226+D P 3 D 2.50E+02 RESRAD Default NR NR NR NR Sr-90+D P 3 D 1.00E+02 RESRAD Default NR NR NR NR Sb-125 P 3 D 1.00E+01 RESRAD Default NR NR NR NR Tc-99 P 3 D 5.OOE+00 RESRAD Default NR NR NR NR Th-229+D P 3 D 5.00E+02 RESRAD Default NR NR NR NR Th-230 P 3 D 5.00E+02 RESRAD Default NR NR NR NR U-233 P 3 D 6.00E+01 RESRAD Default NR NR NR NR U-234 P 3 D 6.00E+01 RESRAD Default NR NR NR NR _

U-235+D P 3 D 6.00E+01 RESRAD Default NR NR NR NR

Project: Yankee Rowe License Termination Calc. No. YA-CALC-01-002-03

Subject:

Derived Concentration Guideline Levels for Soil at the Yankee Rowe Site Page 29 of 28 Table 6 Input Parameters for Soil Derived Concentration Guideline Levels Resident Farmer Scenario l Distribution's Statistical Parameters Mean Parameter (unit) Type, Priorit? Treatmente Value/Distribution Basis l 1 2 3 l 4 (Median)

Graphics Parameters Number of points 32 IRESRAD Default NR NR NR NR Spacing log JRESRAD Default NR NR H NR H NR I Time Integration Parameter Maximum number of points for dose 17 JRESRAD Default NR NR H NR H NR H I Table 2 Notes:

' 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)

D = deterministic, S = stochastic d Distributions Statistical Parameters:

Lognormal-n: 1= mean, 2 = standard deviation Bounded ognormal-n: 1= mean, 2 = standard deviation, 3 = minimum, 4 = maximum Truncated lognofmal-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 I = minimum, 2 = mode, 3 = maximum Uniform: 1 = minimum, 2 = maximum Additional Sensitivity Analysis Data:

Sampling technique = Latin Hypercube Number of observations =2000 Number of repetitions = I Input Rank Correlation Coefficients for situation where distributions remain for both parameters:

Thickness of contaminated zone and unsaturated zone = - 0.99 Total porosity and bulk density = - 0.99 (contaminated zone, unsaturated and saturated zones)

Total porosity and effective porosity = 0.96 (unsaturated and saturated zones)

Effective porosity and bulk density = -0.99 (unsaturated and saturated zones)

Well Pumping Rate and Irrigation Rate = 0.96

i Project: Yankee Rowe License Termination Calc. No. YA-CALC-01-002-03

Subject:

Derived Concentration Guideline Levels for Soil at the Yankee Rowe Site Attachment 1, Page 1 of 2 Attachment I YA-CALC-01-002-03 CD

Project: Yankee Rowe License Termination Calc. No. YA-CALC-01-002-03

Subject:

Derived Concentration Guideline Levels for Soil at the Yankee Rowe Site Attachment 1, Page 2 of 2 The enclosed CD contains the electronic image files containing the RESRAD summary.rep and mcsummar.rep report output pages that can be used to verify deterministic inputs and probabilistic inputs and output, respectively.

CD Name: YA-CALC-01-002-03 File: Deterministic Appendix.Soil DCGLs.pdf Probabilistic Appendix.Soil DCGLs.pdf

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