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{{#Wiki_filter:ENGINEERING CALCULATION | {{#Wiki_filter:ENGINEERING CALCULATION | ||
Derived Concentration Guideline Levels | Derived Concentration Guideline Levels Values for Soil - Industrial Use Scenario Oyster Creek Station ENG-OCS-008 Revision: 0 July 26, 2023 | ||
Prepared by: | Prepared by: | ||
| Line 27: | Line 27: | ||
Prepared by | Prepared by | ||
Approved by BHI Engineering | Approved by BHI Engineering ENG-OCS-008 DCGL Values for Soil - Industrial Use Scenario Rev. 0 | ||
1.0 | 1.0 PURPOSE The purpose of this calculation is to develop derived concentration guideline levels (DCGLs) values for assessing soil at the Oyster Creek Station (OCS) site. | ||
2.0 | 2.0 APPLICABILITY This calculation addresses only the development of DCGLs for soil in open land areas at the OCS site. | ||
==3.0 | ==3.0 REFERENCES== | ||
3.1 BHI Energy Engineering Procedure ENG -AP-02, Verification of Software Operability 3.2 ANL/EAD-4, Users Manual for RESRAD Version 6, U.S. Department of Energy - Argonne National Laboratory, July 2001 3.3 ANL/EVS/TM-18/1, RESRAD-Onsite 7.2 Users Guide, April 2018 3.4 ENG-OCS-007, RESRAD-Onsite Probabilistic Analysis - Industrial Use Scenario, July 2023 3.5 NUREG/CR-5512, Residual Radioactive Contamination from Decommissioning | |||
* Volume 1: Technical Basis for Translating Contamination Levels to Annual Total Effective Dose Equivalent, Oct. 1992 (PNL-7994) | |||
* Volume 3: Parameter Analysis, Draft Report for Comment, Oct. 1999 (SAND99-2148) 3.6 Radionuclide Selection for DCGL Development-Oyster Creek Station Site Characterization Project, January 2022 | |||
4.0 DISCUSSION The operability of the RESRAD-Onsite 7.2 computer code was verified on each computer used for code executions in accordance with BHI Energy Engineering procedure ENG -AP-02, Verification of Software Operability [3.1]. The RESRAD code has undergone extensive review, benchmarking, verification, and validation [3.2]. The RESRAD-Onsite 7.2 Users Guide [3.3] provided instructions for code use. | |||
4.0 | |||
Sensitive RESRAD-Onsite input parameters have been identified for each radionuclide-of-concern (ROC) and conservative input values for use in DCGL calculations have been determined in ENG-OCS-007 [3.4]. | Sensitive RESRAD-Onsite input parameters have been identified for each radionuclide-of-concern (ROC) and conservative input values for use in DCGL calculations have been determined in ENG-OCS-007 [3.4]. | ||
The 75th percentile and 25th percentile values are recommended as reasonably conservative input values for the sensitive parameters in calculations for DCGL values for open land areas at the OCS site. The approach of assigning 25th and 75th percentile values of a sensitive parameters distribution to account for uncertainty in | The 75th percentile and 25th percentile values are recommended as reasonably conservative input values for the sensitive parameters in calculations for DCGL values for open land areas at the OCS site. The approach of assigning 25th and 75th percentile values of a sensitive parameters distribution to account for uncertainty in DCGL values has been accepted in past decommissioning projects (e.g., Yankee Rowe, Zion, Connecticut Yankee, Humboldt Bay, Fort Calhoun Station, and SMUD) by the U.S. Nuclear Regulatory Commission (NRC) and State regulators. Refer to ENG-OCS-007 for details regarding the probabilistic analyses. | ||
RESRAD-Onsite code executions were performed for each ROC identified for the OCS site. The peak of the mean (POM) dose for each ROC was used to determine the DCGL value that corresponded to the NRC dose criteria established in 10CFR20.1403 (i.e., 25 mrem/y). The DCGL value for each ROC was calculated as follows: | RESRAD-Onsite code executions were performed for each ROC identified for the OCS site. The peak of the mean (POM) dose for each ROC was used to determine the DCGL value that corresponded to the NRC dose criteria established in 10CFR20.1403 (i.e., 25 mrem/y). The DCGL value for each ROC was calculated as follows: | ||
DCGL(pCi/g) | DCGL(pCi/g) = (25 mrem/y)/(POM dose (mrem/y per 1 pCi/g)). | ||
5.0 | 5.0 SCENARIO and INPUT | ||
5.1 | 5.1 Scenario | ||
Page 1 of 18 BHI Engineering | Page 1 of 18 BHI Engineering ENG-OCS-008 DCGL Values for Soil - Industrial Use Scenario Rev. 0 | ||
5.1.1 | 5.1.1 The dose model behind the DCGL values is an Industrial Use Scenario. The average member of the critical group is a hypothetical full-time industrial worker who is assigned to outdoor tasks and catches and ingests fish from the intake/discharge canal during off-hours. As an industrial site, ingestion exposure pathways for plant, meat, and milk products originating on the site do not exist. Drinking water is assumed to be provided by a municipal water supply supported by site infrastructure. The exposure pathways used to estimate human radiation exposure resulting from residual radioactivity in the soil for this scenario are the following: | ||
* Direct external radiation exposure pathway | * Direct external radiation exposure pathway | ||
* Inhalation exposure pathway | * Inhalation exposure pathway | ||
| Line 57: | Line 56: | ||
* Inadvertent ingestion of contaminated soil | * Inadvertent ingestion of contaminated soil | ||
5.1.2 | 5.1.2 Time fractions: The hypothetical industrial worker is assumed to spend 7h per day on outdoor tasks and 1h per day for indoor work breaks (i.e., 15 min morning break, 30 min lunch, and 15 min afternoon break). Under this assumption, the worker spends 35h/week performing outdoor tasks and 5h/week indoors on work breaks. Over a 50-week occupational year, the worker spends (35h/week | ||
* 50 weeks =) 1750h outdoors at the industrial site and (5h/week | * 50 weeks =) 1750h outdoors at the industrial site and (5h/week | ||
* 50 weeks =) 250 h indoors at the site. A calendar year has (24h/d | * 50 weeks =) 250 h indoors at the site. A calendar year has (24h/d | ||
| Line 63: | Line 62: | ||
* Fraction of calendar year off-site = (8766h - 2000h)/8766h = 0.77 (no exposure to radioactive material at the site during this time) | * Fraction of calendar year off-site = (8766h - 2000h)/8766h = 0.77 (no exposure to radioactive material at the site during this time) | ||
* Fraction of calendar year outdoors at the site = 1750h/8766h = 0.20 (receives site radiation exposure) | * Fraction of calendar year outdoors at the site = 1750h/8766h = 0.20 (receives site radiation exposure) | ||
* Fraction of calendar year indoors at the site = 250h/8766h = 0.03 (receives site radiation exposure) 5.1.3 | * Fraction of calendar year indoors at the site = 250h/8766h = 0.03 (receives site radiation exposure) 5.1.3 Site Conceptual Model: The conceptual hydrological model for this Industrial Use scenario has three geological strata: (1) a contaminated zone (CZ), (2) an unsaturated zone (UZ), and (3) a saturated zone (SZ). The contaminated zone is assumed to be uncovered, equivalent in size to the OCS Protected Area (PA), | ||
124,400 m2. The | 124,400 m2. The UZ, SZ, and groundwater in the SZ are assumed initially uncontaminated. | ||
5.2 | 5.2 Input | ||
5.2.1 | 5.2.1 A site-specific suite of ROCs has been identified for the OCS site [3.6]. OCS ROCs are shown in Table 1 below. | ||
Table 1: Radionuclides-of-Concern for input to RESRAD-Onsite: | Table 1: Radionuclides-of-Concern for input to RESRAD-Onsite: | ||
ROCa | ROCa Progenyb ROCa Progenyb Am-241 Np-237, Th-229, U-233 Nb-94 --- | ||
C-14 | C-14 --- Ni-63 --- | ||
Cm-243 | Cm-243 Ac-227, Am-243, Pa-231, Np-237 Th-229, U-233 Pu-239, U-235 Cm-244 Pu-240, Ra-228, Th-228, Pu-238 Pb-210, Po-210, Ra-226, Th-232, U-236 Th-230, U-234 Cs-137 --- Pu-239 Ac-227, Pa-231, U-235 | ||
Page 2 of 18 BHI Engineering | Page 2 of 18 BHI Engineering ENG-OCS-008 DCGL Values for Soil - Industrial Use Scenario Rev. 0 | ||
ROCa | ROCa Progenyb ROCa Progenyb Co-60 --- Pu-240 Ra-228, Th-228, Th-232, U-236 Eu-152 Gd-152 Pu-241 Am-241, Np-237, Th-229, U-233 Eu-154 --- Sb-125 Te-125m Fe-55 --- Sr-90 --- | ||
H-3 | H-3 --- Tc-99 --- | ||
Mn-54 | Mn-54 --- | ||
a ROC = radionuclide-of-concern identified for the OCS site. | a ROC = radionuclide-of-concern identified for the OCS site. | ||
b Included automatically with input of parent ROC. | b Included automatically with input of parent ROC. | ||
5.2.2 | 5.2.2 Table 2 summarizes the following information from ENG-OCS-007: | ||
* RESRAD-Onsite parameters identified as sensitive | * RESRAD-Onsite parameters identified as sensitive. | ||
* ROC for which the parameter was determined to be sensitive. | * ROC for which the parameter was determined to be sensitive. | ||
* 25th and 75th percentile values from the parameter distributions. | * 25th and 75th percentile values from the parameter distributions. | ||
5.2.3 | 5.2.3 Table 3 provides the input value for each RESRAD-Onsite parameter for the DCGL calculations. Separate RESRAD-Onsite code executions were performed for each ROC. | ||
Note: Except for values assigned to sensitive parameters, all input values for non-sensitive parameters are the same as those used in the probabilistic analysis (ENG-OCS-007). | Note: Except for values assigned to sensitive parameters, all input values for non-sensitive parameters are the same as those used in the probabilistic analysis (ENG-OCS-007). | ||
6.0 | 6.0 RESULTS 6.1 The calculated POM dose for each ROC is provided in column 2 of Table 4. The calculated POM doses from the RESRAD-Onsite 7.2 output reports are provided by ROC in Appendix A. | ||
6.2 | 6.2 Column 3 of Table 4 provides the DCGL values corresponding to an annual dose equal to 25 mrem. The DCGL for each ROC was calculated from the POM dose using the following relationship: | ||
DCGL(pCi/g) | DCGL(pCi/g) = (25 mrem/y)/(POM mrem/y per 1 pCi/g) | ||
Page 3 of 18 BHI Engineering | Page 3 of 18 BHI Engineering ENG-OCS-008 DCGL Values for Soil - Industrial Use Scenario Rev. 0 | ||
Table 2: RESRAD-Onsite Generated Percentile Values for Sensitive Input Parameters (from ENG-OCS-007) | Table 2: RESRAD-Onsite Generated Percentile Values for Sensitive Input Parameters (from ENG-OCS-007) | ||
Radionuclide | Radionuclide Sensitive Parameter PRCC Value Am-241 Inhalation Rate 0.66 Mass Loading for Inhalation 0.84 Soil Ingestion 0.99 C-14 Thickness of CZ 0.26 Kd in UZ -0.51 Cm-243 Inhalation Rate 0.31 Mass Loading for Inhalation 0.49 External Shielding Factor 0.87 Soil Ingestion 0.94 Cm-244 Inhalation Rate 0.63 Mass Loading for Inhalation 0.82 Soil Ingestion 0.99 Co-60 External Shielding Factor 0.88 Kd in CZ 0.48 Cs-137 External Gamma Shielding Factor 0.96 Eu-152 External Shielding Factor 0.87 Kd in CZ 0.48 Eu-154 External Shielding Factor 0.86 Kd in CZ 0.48 Fe-55 Inhalation Rate 0.54 Mass Loading for Inhalation 0.77 Soil Ingestion 1.00 H-3 Thickness of CZ 0.71 Evapotranspiration Coefficient 0.59 Inhalation Rate 0.80 Kd in CZ -0.28 Mn-54 External Shielding Factor 0.94 Kd in CZ 0.28 Nb-94 External Shielding Factor 0.96 Ni-63 Soil Ingestion 1.00 Kd in CZ 0.36 Np-237 Kd in CZ 0.61 Mass Loading for Inhalation 0.32 External Shielding Factor 0.72 Soil Ingestion 0.85 Pu-238 Inhalation Rate 0.62 Mass Loading for Inhalation 0.84 Soil Ingestion 0.99 Pu-239 Soil Ingestion 0.43 Kd in CZ 0.57 Kd in UZ -0.34 Pu-240 Soil Ingestion 0.43 Kd in CZ 0.54 Kd in UZ -0.29 | ||
Page 4 of 18 BHI Engineering | Page 4 of 18 BHI Engineering ENG-OCS-008 DCGL Values for Soil - Industrial Use Scenario Rev. 0 | ||
Radionuclide | Radionuclide Sensitive Parameter PRCC Value Pu-241 Kd of Am-241 in CZ 0.44 Mass Loading for Inhalation 0.47 Soil Ingestion 0.93 Kd in CZ 0.28 Sb-125 External Shielding Factor 0.85 Kd in CZ 0.73 Sr-90 External Shielding Factor 0.66 Soil Ingestion 0.89 Kd in CZ 0.59 Tc-99 Contaminated Fraction for Aquatic Food 0.53 Kd in UZ -0.31 Fish Transfer Factor 0.80 | ||
Page 5 of 18 BHI Engineering | Page 5 of 18 BHI Engineering ENG-OCS-008 DCGL Values for Soil - Industrial Use Scenario Rev. 0 | ||
Table 3. Summary of Values for RESRAD Input Parameters | Table 3. Summary of Values for RESRAD Input Parameters | ||
Values and Bases for RESRAD-Onsite Parameters for DCGL Calculations Industrial Use Scenario RESRAD Exposure Pathways External Gamma | Values and Bases for RESRAD-Onsite Parameters for DCGL Calculations Industrial Use Scenario RESRAD Exposure Pathways External Gamma Open Inhalation Open Plant Ingestion Close Meat Ingestion Close Milk Ingestion Close Aquatic Foods Open Drinking Water Close Soil Ingestion Open Radon Close Distribution's Statistical Median/ | ||
Parameter (unit) | Parameter (unit) Typea Priorityb Treatmentc Value/Distribution Basis Parametersd Mean 1 2 3 4 Soil Concentrations Basic radiation dose P 3 D 25 10 CFR 20.1402 NR NR NR NR limit (mrem/y) | ||
Initial principal | Initial principal P 2 D 1 Unit Value NR NR NR NR radionuclide (pCi/g) | ||
Distribution coefficients (sand soil type assigned to contaminated, unsaturated. and saturated zones) (cm3/g) | Distribution coefficients (sand soil type assigned to contaminated, unsaturated. and saturated zones) (cm3/g) | ||
Ac-227 | Ac-227 P 1 S Truncated lognormal-n NUREG/CR-7267 7.44 1.1 0.001 0.999 1700 Am-241 P 1 D 3.7E+03 (CZ) 75th percentile | ||
S | S Truncated lognormal-n ANL/EVS/TM-14/4 6.91 1.95 0.001 0.999 1000 (UZ, SZ) | ||
Am-243 | Am-243 P 1 S Truncated lognormal-n ANL/EVS/TM-14/4 6.91 1.95 0.001 0.999 1000 C-14 P 1 D 6.2E+00 (UZ) 25th percentile | ||
S | S Truncated lognormal-n NUREG/CR-7267 3.04 1.82 0.001 0.999 21 (CZ, SZ) | ||
Cm-243 | Cm-243 P 1 S Truncated lognormal-n ANL/EVS/TM-14/4 8.13 2.64 0.001 0.999 3400 Cm-244 P 1 S Truncated lognormal-n ANL/EVS/TM-14/4 8.13 2.64 0.001 0.999 3400 Co-60 P 1 D 1.8E+03 (CZ) 75th percentile | ||
S | S Truncated lognormal-n ANL/EVS/TM-14/4 5.56 2.89 0.001 0.999 260 (UZ, SZ) | ||
Cs-137 | Cs-137 P 1 S Truncated lognormal-n ANL/EVS/TM-14/4 6.27 1.79 0.001 0.999 530 Eu-152 P 1 D 1.4E+04 (CZ) 75th percentile | ||
S | S Truncated lognormal-n NUREG/CR-7267 6.86 4.01 0.001 0.999 955 (UZ,SZ) | ||
Eu-154 | Eu-154 P 1 D 1.4E+04 (CZ) 75th percentile | ||
S | S Truncated lognormal-n NUREG/CR-7267 6.86 4.01 0.001 0.999 955 (UZ,SZ) | ||
Fe-55 | Fe-55 P 1 S Truncated lognormal-n ANL/EVS/TM-14/4 5.77 0 0.001 0.999 320 Gd-152 P 1 S Truncated lognormal-n NUREG/CR-7267 1.61 3.22 0.001 0.999 5 H-3 P 1 D 4.3E-02 (CZ) 25th percentile | ||
S | S Truncated lognormal-n NUREG/CR-7267 -2.81 0.5 0.001 0.999 0.06 (UZ,SZ) | ||
Mn-54 | Mn-54 P 1 D 5.8E+03 (CZ) 75th percentile | ||
S | S Truncated lognormal-n ANL/EVS/TM-14/4 6.89 2.64 0.001 0.999 980 (UZ,SZ) | ||
Page 6 of 18 BHI Engineering | Page 6 of 18 BHI Engineering ENG-OCS-008 DCGL Values for Soil - Industrial Use Scenario Rev. 0 | ||
Values and Bases for RESRAD-Onsite Parameters for DCGL Calculations Industrial Use Scenario Nb-94 | Values and Bases for RESRAD-Onsite Parameters for DCGL Calculations Industrial Use Scenario Nb-94 P 1 S Truncated lognormal-n NUREG/CR-7267 7.31 1.39 0.001 0.999 1500 Ni-63 P 1 D 6.1E+02 (CZ) 75th percentile | ||
S | S Truncated lognormal-n ANL/EVS/TM-14/4 4.87 2.3 0.001 0.999 130 (UZ,SZ) | ||
Np-237 | Np-237 P 1 D 3.6E+01 (CZ) 75th percentile | ||
S | S Truncated lognormal-n ANL/EVS/TM-14/4 2.64 1.39 0.001 0.999 14 (UZ, SZ) | ||
Pa-231 | Pa-231 P 1 S Truncated lognormal-n NUREG/CR-7267 7.6 1.1 0.001 0.999 2000 Pb-210 P 1 S Truncated lognormal-n ANL/EVS/TM-14/4 5.39 1.39 0.001 0.999 220 Po-210 P 1 S Truncated lognormal-n ANL/EVS/TM-14/4 4.61 1.79 0.001 0.999 100 Pu-238 P 1 S Truncated lognormal-n ANL/EVS/TM-14/4 5.99 1.39 0.001 0.999 400 Pu-239 P 1 D 1.0E+03 (CZ) 75th percentile 1.6E+02 (UZ) 25th percentile | ||
S | S Truncated lognormal-n ANL/EVS/TM-14/4 5.99 1.39 0.001 0.999 400 (SZ) | ||
Pu-240 | Pu-240 P 1 D 1.0E+03 (CZ) 75th percentile D 1.6E+02 (UZ) 25th percentile | ||
S | S Truncated lognormal-n ANL/EVS/TM-14/4 5.99 1.39 0.001 0.999 400 (SZ) | ||
Pu-241 | Pu-241 P 1 D 1.0E+03 (CZ) 75th percentile | ||
S | S Truncated lognormal-n ANL/EVS/TM-14/4 5.99 1.39 0.001 0.999 400 (UZ, SZ) | ||
Ra-226 | Ra-226 P 1 S Truncated lognormal-n ANL/EVS/TM-14/4 8.04 2.08 0.001 0.999 3100 Ra-228 P 1 S Truncated lognormal-n ANL/EVS/TM-14/4 8.04 2.08 0.001 0.999 3100 Sb-125 P 1 D 5.6E+01 (CZ) 75th percentile | ||
S | S Truncated lognormal-n ANL/EVS/TM-14/4 2.83 1.79 0.001 0.999 17 (UZ,SZ) | ||
Sr-90 | Sr-90 P 1 D 7.3E+01 (CZ) 75th percentile | ||
S | S Truncated lognormal-n ANL/EVS/TM-14/4 3.09 1.79 0.001 0.999 22 (UZ.SZ) | ||
Tc-99 | Tc-99 P 1 D 1.9E-02 (UZ) 25th percentile | ||
S | S Truncated lognormal-n ANL/EVS/TM-14/4 -3.22 1.1 0.001 0.999 0.04 (CZ, SZ) | ||
Te-125m | Te-125m P 1 S Truncated lognormal-n NUREG/CR-7267 6.31 3.22 0.001 0.999 550 Th-228 P 1 S Truncated lognormal-n ANL/EVS/TM-14/4 6.55 2.4 0.001 0.999 700 Th-229 P 1 S Truncated lognormal-n ANL/EVS/TM-14/4 6.55 2.4 0.001 0.999 700 Th-230 P 1 S Truncated lognormal-n ANL/EVS/TM-14/4 6.55 2.4 0.001 0.999 700 Th-232 P 1 S Truncated lognormal-n ANL/EVS/TM-14/4 6.55 2.4 0.001 0.999 700 U-233 P 1 S Truncated lognormal-n ANL/EVS/TM-14/4 4.7 2.48 0.001 0.999 110 U-234 P 1 S Truncated lognormal-n ANL/EVS/TM-14/4 4.7 2.48 0.001 0.999 110 U-235 P 1 S Truncated lognormal-n ANL/EVS/TM-14/4 4.7 2.48 0.001 0.999 110 U-236 P 1 S Truncated lognormal-n ANL/EVS/TM-14/4 4.7 2.48 0.001 0.999 110 Initial concentration P 3 D 0 Ground water NR NR NR NR of radionuclides uncontaminated present in groundwater (pCi/l) | ||
Calculation Times Time since placement | Calculation Times Time since placement P 3 D 0 NR NR NR NR of material (y) | ||
Time for calculations | Time for calculations P 3 D 1, 3, 10, 30, 100, 300, 1000 RESRAD Default NR NR NR NR (y) | ||
Page 7 of 18 BHI Engineering | Page 7 of 18 BHI Engineering ENG-OCS-008 DCGL Values for Soil - Industrial Use Scenario Rev. 0 | ||
Values and Bases for RESRAD-Onsite Parameters for DCGL Calculations Industrial Use Scenario Contaminated Zone Area of contaminated | Values and Bases for RESRAD-Onsite Parameters for DCGL Calculations Industrial Use Scenario Contaminated Zone Area of contaminated P 2 D 124,400 OCGS PA NR NR NR NR zone (m2) | ||
Thickness of | Thickness of P 2 D 3.0E+00 75th percentile value contaminated zone assigned to C-14, H-3 (m) | ||
S | S Uniform Site-specific distribution; 0.1524 3.96 2.06 assigned to all other ROCs Length parallel to P 2 D 398 Site-specific - assumed NR NR NR NR aquifer flow (m) diameter of a circle with an area = OCGS contaminated zone, 124,400 m2 Cover and Contaminated Zone Hydrological Data Cover depth (m) P 2 D 0 No cover NR NR NR NR Density of P 1 S Bounded Normal NUREG/CR-7267 1.5105 0.159 1.019 2.002 1.5105 contaminated zone distribution for site soil (g/cm3) type - sand. | ||
Contaminated zone | Contaminated zone P 2 D 6E-04 NUREG/CR-7267; NR NR NR NR erosion rate (m/y) assumed erosion rate for site with shallow slope (i.e., relatively level) | ||
Contaminated zone | Contaminated zone P 2 S Bounded Normal NUREG/CR-7267 0.43 0.06 0.2446 0.6154 0.43 total porosity distribution for site soil type - sand Contaminated zone P 3 D 0.18 Value based on site-NR NR NR NR field capacity specific soil type (sand); | ||
calculated using equation in NUREG/CR-7267 Contaminated zone | calculated using equation in NUREG/CR-7267 Contaminated zone P 2 D 2741 2017 Hydrogeologic NR NR NR NR hydraulic Investigation Report conductivity (m/y) | ||
Contaminated zone b | Contaminated zone b P 2 S Bounded NUREG/CR-7267 - 0.0253 0.216 0.501 1.90 0.975 parameter Log Normal n distribution for site soil type - sand Humidity in air P 3 D 6.6 Figure 1 in Regional and NR NR NR NR (g/m3) Site-Specific Absolute Humidity Data for Use in Tritium Dose Calculations (figure provide below) | ||
Evapotranspiration | Evapotranspiration P 2 D 6.9E-01 75th percentile assigned to coefficient H-3 | ||
S | S Uniform NUREG/CR-7267 assigned 0.5 0.75 0.625 to all other ROCs Average annual wind P 2 D 3.13 Internet search: NR NR NR NR speed (m/s) https://www.windfinder.co m/windstatistics/oyster_cre ek_barnegat_bay Precipitation (m/y) P 2 D 1.4 Annual Report on the NR NR NR NR Meteorological Program at Oyster Creek Generating Station - average annual precipitation for 2015 through 2020 Irrigation (m/y) B 3 D 0.2 RESRAD default NR NR NR NR | ||
Irrigation mode | Irrigation mode B 3 D Overhead Overhead irrigation is NR NR NR NR common practice for crops in U.S. | ||
Runoff coefficient | Runoff coefficient P 2 D 0.2 Value determined using NR NR NR NR methodology described in Data Collection Handbook and NUREG/CR-7267 Page 8 of 18 BHI Engineering ENG-OCS-008 DCGL Values for Soil - Industrial Use Scenario Rev. 0 | ||
Values and Bases for RESRAD-Onsite Parameters for DCGL Calculations Industrial Use Scenario Watershed area for | Values and Bases for RESRAD-Onsite Parameters for DCGL Calculations Industrial Use Scenario Watershed area for P 3 D 1.01E+08 NJ-GeoWeb (NJDEP NR NR NR NR nearby stream or BGIS) pond (m2) | ||
Accuracy for | Accuracy for - 3 D 1.00E-03 RESRAD Default NR NR NR NR water/soil computations Saturated Zone Hydrological Data Density of saturated P 1 S Bounded Normal NUREG/CR-7267 Table 1.5105 0.159 1.019 2.002 1.5105 zone (g/cm3) C-1, distribution for site soil type - sand Saturated zone total P 1 S Bounded Normal NUREG/CR-7267 0.43 0.06 0.2446 0.6154 0.43 porosity distribution for site soil type - sand Saturated zone P 1 D 0.25 2017 Hydrogeologic NR NR NR NR effective porosity Investigation Report Saturated zone field P 3 D 0.18 Value based on site-NR NR NR NR capacity specific soil type (sand); | ||
calculated using equation in NUREG/CR-7267 Saturated zone | calculated using equation in NUREG/CR-7267 Saturated zone P 1 D 2741 2017 Hydrogeologic NR NR NR NR hydraulic Investigation Report conductivity (m/y) | ||
Saturated zone | Saturated zone P 2 S Uniform 2017 Hydrogeologic 0.01 0.04 0.025 hydraulic gradient Investigation Report (section 5.1.4) | ||
Saturated zone b | Saturated zone b P 2 S Bounded NUREG/CR-7267 - 0.0253 0.216 0.501 1.90 0.975 parameter Log Normal n distribution for site soil type - sand Water table drop rate P 3 D 1.00E-03 RESRAD Default NR NR NR NR (m/y) | ||
Well pump intake | Well pump intake P 2 D 10 RESRAD Default NR NR NR NR depth (m below water table) | ||
Model: | Model: P 3 D ND ND model recommended NR NR NR NR Nondispersion (ND) for contaminant areas or Mass-Balance >1,000 m2 (MB) | ||
Well pumping rate | Well pumping rate P 2 N/A Input not required - | ||
(m3/y) | (m3/y) drinking water pathway inactive Unsaturated Zone Hydrological Data Number of P 3 D 1 2017 Hydrogeologic NR NR NR NR unsaturated zone Investigation Report strata (Figures 5.7 & 5.8) | ||
Unsat. zone 1, | Unsat. zone 1, P 1 S uniform Distribution developed 1.37 5.94 3.65 thickness (m) from depth range for site groundwater, 5 ft - 20 ft (2017 Hydrogeologic Investigation Report (section 2.4.3) and minimum thickness of CZ (0.5 ft) | ||
Unsat. zone 1, soil | Unsat. zone 1, soil P 2 S Bounded Normal NUREG/CR-7267 1.5105 0.159 1.019 2.002 1.5105 density (g/cm3) distribution for site soil type - sand Unsat. zone 1, total P 2 S Bounded Normal NUREG/CR-7267 0.43 0.06 0.2446 0.6154 0.43 porosity distribution for site soil type - sand Unsat. zone 1, P 2 D 0.25 2017 Hydrogeologic NR NR NR NR effective porosity Investigation Report | ||
Page 9 of 18 BHI Engineering | Page 9 of 18 BHI Engineering ENG-OCS-008 DCGL Values for Soil - Industrial Use Scenario Rev. 0 | ||
Values and Bases for RESRAD-Onsite Parameters for DCGL Calculations Industrial Use Scenario Unsat. zone 1, field | Values and Bases for RESRAD-Onsite Parameters for DCGL Calculations Industrial Use Scenario Unsat. zone 1, field P 3 D 0.18 Value based on site-NR NR NR NR capacity specific soil type (sand); | ||
calculated using equation in NUREG/CR-7267 Unsat. zone 1, | calculated using equation in NUREG/CR-7267 Unsat. zone 1, P 2 D 2741 2017 Hydrogeologic NR NR NR NR hydraulic Investigation Report conductivity (m/y) | ||
Unsat. zone 1, soil- | Unsat. zone 1, soil-P 2 S Bounded NUREG/CR-7267 - 0.0253 0.216 0.501 1.90 0.975 specific b parameter Log Normal n distribution for site soil type - sand Occupancy Inhalation rate (m3/y) B 3 D 9.9E+03 75th percentile value assigned to Am-241, Cm-243, Cm-244, Fe-55, H-3, Pu-238 S | ||
Triangular | Triangular NUREG/CR-7267 assigned 4380 8400 13000 8593 to all other ROCs Mass loading for P 2 D 2.9E-05 75th percentile value inhalation (g/m3) assigned to Am-241, Cm-243, Cm-244, Fe-55, Np-237, Pu-238, Pu-241 | ||
S | S Continuous linear NUREG/CR-7267 assigned 2.3E-5 to all other ROCs Exposure duration B 3 D 30 RESRAD Default NR NR NR NR Indoor dust filtration P 2 S Uniform NUREG/CR-7267 0.15 0.95 0.55 factor Shielding factor, P 2 D 4.0E-01 75th percentile assigned to external gamma Cm-243, Co-60, Cs-137, Eu-152, Eu-154, Mn-54, Nb-94, Np-237, Sb-125, Sr-90 | ||
S | S Bounded lognormal-n NUREG/CR-7267 assigned -1.3 0.59 0.044 1 0.2725 to all other ROCs Fraction of time spent B 3 D 0.03 Fraction of calendar year NR NR NR NR indoors assuming 1h/work day for daily work breaks Fraction of time spent B 3 D 0.2 Fraction of calendar year NR NR NR NR outdoors assuming 7h/work day for outside tasks Shape factor flag, P 3 D Circular RESRAD Default - NR NR NR NR external gamma Circular contaminated zone assumed Ingestion, Dietary Fruits, vegetables, B 2 D N/A Input not required - plant NR NR NR NR grain consumption ingestion pathway inactive (kg/y) | ||
Leafy vegetable | Leafy vegetable B 3 D N/A Input not required - plant NR NR NR NR consumption (kg/y) ingestion pathway inactive Milk consumption B 2 D N/A Input not required - milk NR NR NR NR (L/y) ingestion pathway inactive Meat and poultry B 3 D N/A Input not required - meat NR NR NR NR consumption (kg/y) ingestion pathway inactive Fish consumption B 3 D 20.6 NUREG/CR-5512, Vol. 3 NR NR NR NR (kg/y) | ||
Other seafood | Other seafood B 3 D 0.9 RESRAD Default NR NR NR NR consumption (kg/y) | ||
Page 10 of 18 BHI Engineering | Page 10 of 18 BHI Engineering ENG-OCS-008 DCGL Values for Soil - Industrial Use Scenario Rev. 0 | ||
Values and Bases for RESRAD-Onsite Parameters for DCGL Calculations Industrial Use Scenario Soil & dust ingestion | Values and Bases for RESRAD-Onsite Parameters for DCGL Calculations Industrial Use Scenario Soil & dust ingestion B 2 D 2.4E+01 75th percentile value rate (g/yr) assigned to Am-241, Cm-243, Cm-244, Fe-55, Ni-63, Np-237, Pu-238, Pu-239, Pu-240, Pu-241, Sr-90 | ||
S | S Triangular NUREG/CR-7267 assigned 0 18.3 36.5 18.3 to all other ROCs Drinking water intake B 2 N/A Input not required - | ||
(L/y) | (L/y) drinking water pathway inactive Contamination P 3 N/A Input not required - | ||
fraction of drinking | fraction of drinking drinking water pathway water inactive Contamination P 3 N/A Input not required - water fraction of household pathway inactive water Contamination P 3 N/A Input not required - | ||
fraction of livestock | fraction of livestock drinking water/ingestion water pathways inactive Contamination P 3 N/A Input not required - plant fraction of irrigation ingestion pathway inactive water Contamination P 2 D 6.1E-01 75th percentile assigned to fraction of aquatic Tc-99 food S Triangular NUREG/CR-7267 assigned 0 0.39 1 0.45 to all other ROCs Contamination P 3 N/A Input not required - plant fraction of plant food ingestion pathway inactive Contamination P 3 N/A Input not required - meat fraction of meat ingestion pathway inactive Contamination P 3 N/A Input not required - milk fraction of milk ingestion pathway inactive Ingestion, Non-Dietary Livestock fodder M 3 N/A Input not required - meat intake for meat (kg/d) ingestion pathway inactive Livestock fodder M 3 N/A Input not required - milk intake for milk (kg/d) ingestion pathway inactive Livestock water M 3 N/A Input not required - water intake for meat (L/d) ingestion pathway inactive Livestock water M 3 N/A Input not required - milk intake for milk (L/d) ingestion pathway inactive Livestock soil intake M 3 N/A Input not required - meat (kg/d) ingestion pathway inactive Mass loading for P 3 N/A Input not required - plant foliar deposition ingestion pathway inactive (g/m3) | ||
Depth of soil mixing | Depth of soil mixing P 2 D 0.15 RESRAD Default NR NR NR NR layer (m) | ||
Depth of roots (m) | Depth of roots (m) P 1 N/A Input not required - plant ingestion pathway inactive Drinking water P 3 N/A Input not required - | ||
fraction from ground | fraction from ground drinking water ingestion water pathway inactive Household water P 3 N/A Input not required - | ||
fraction from ground | fraction from ground drinking water pathway water (if used) inactive Livestock water P 3 N/A Input not required - | ||
fraction from ground | fraction from ground drinking water/meat water ingestion pathways inactive | ||
Page 11 of 18 BHI Engineering | Page 11 of 18 BHI Engineering ENG-OCS-008 DCGL Values for Soil - Industrial Use Scenario Rev. 0 | ||
Values and Bases for RESRAD-Onsite Parameters for DCGL Calculations Industrial Use Scenario Irrigation fraction | Values and Bases for RESRAD-Onsite Parameters for DCGL Calculations Industrial Use Scenario Irrigation fraction P 3 N/A Input not required - | ||
from ground water | from ground water drinking water pathway inactive Wet weight crop P 2 N/A Input not required - plant yield for Non-Leafy ingestion pathway inactive (kg/m2) | ||
Wet weight crop | Wet weight crop P 3 N/A Input not required - plant yield for Leafy ingestion pathway inactive (kg/m2) | ||
Wet weight crop | Wet weight crop P 3 N/A Input not required - meat yield for Fodder ingestion pathway inactive (kg/m2) | ||
Growing Season for | Growing Season for P 3 N/A Input not required - plant Non-Leafy (y) ingestion pathway inactive Growing Season for P 3 N/A Input not required - plant Leafy (y) ingestion pathway inactive Growing Season for P 3 N/A Input not required - meat Fodder (y) ingestion pathway inactive Translocation Factor P 3 N/A Input not required - plant for Non-Leafy ingestion pathway inactive Translocation Factor P 3 N/A Input not required - plant for Leafy ingestion pathway inactive Translocation Factor P 3 N/A Input not required - meat for Fodder ingestion pathway inactive Weathering Removal P 2 N/A Input not required - plant Constant for ingestion pathway inactive Vegetation (1/y) | ||
Wet Foliar | Wet Foliar P 3 N/A Input not required - plant Interception Fraction ingestion pathway inactive for Non-Leafy Wet Foliar P 2 N/A Input not required - plant Interception Fraction ingestion pathway inactive for Leafy Wet Foliar P 3 N/A Input not required - meat Interception Fraction ingestion pathway inactive for Fodder Dry Foliar P 3 N/A Input not required - plant Interception Fraction ingestion pathway inactive for Non-Leafy Dry Foliar P 3 N/A Input not required - plant Interception Fraction ingestion pathway inactive for Leafy Dry Foliar P 3 N/A Input not required - meat Interception Fraction ingestion pathway inactive for Fodder Storage times of contaminated foodstuffs (days) | ||
Fruits, non-leafy | Fruits, non-leafy B 3 N/A Input not required - plant vegetables, and grain ingestion pathway inactive Leafy vegetables B 3 N/A Input not required - plant ingestion pathway inactive Milk B 3 N/A Input not required - milk ingestion pathway inactive Meat and poultry B 3 N/A Input not required - meat ingestion pathway inactive Fish B 3 D 7 RESRAD Default NR NR NR NR Crustacea and B 3 D 7 RESRAD Default NR NR NR NR mollusks Well water B 3 N/A Input not required - | ||
drinking water pathway inactive Page 12 of 18 BHI Engineering | drinking water pathway inactive Page 12 of 18 BHI Engineering ENG-OCS-008 DCGL Values for Soil - Industrial Use Scenario Rev. 0 | ||
Values and Bases for RESRAD-Onsite Parameters for DCGL Calculations Industrial Use Scenario Surface water | Values and Bases for RESRAD-Onsite Parameters for DCGL Calculations Industrial Use Scenario Surface water B 3 N/A Input not required drinking water pathway inactive Livestock fodder B 3 N/A Input not required - meat ingestion pathway inactive Special Radionuclides (C-14) | ||
C-12 concentration in | C-12 concentration in P 3 D 2.00E-05 RESRAD Default NR NR NR NR water (g/cm3) | ||
C-12 concentration in | C-12 concentration in P 3 D 3.00E-02 RESRAD Default NR NR NR NR contaminated soil (g/g) | ||
Fraction of | Fraction of P 3 D 2.00E-02 RESRAD Default NR NR NR NR vegetation carbon from soil Fraction of P 3 D 9.80E-01 RESRAD Default NR NR NR NR vegetation carbon from air C-14 evasion layer P 2 D 0.3 RESRAD Default NR NR NR NR thickness in soil (m) | ||
C-14 evasion flux | C-14 evasion flux P 3 D 7.00E-07 RESRAD Default NR NR NR NR rate from soil (1/s) | ||
C-12 evasion flux | C-12 evasion flux P 3 D 1.00E-10 RESRAD Default NR NR NR NR rate from soil (1/s) | ||
Fraction of grain in | Fraction of grain in B 3 D 0.8 RESRAD Default NR NR NR NR beef cattle feed Fraction of grain in B 3 D 0.2 RESRAD Default NR NR NR NR milk cow feed Inhalation Dose Conversion Factors (mrem/pCi inhaled) from FGR11 (contained in RESRAD Dose Conversion Library) | ||
Ingestion Dose Conversion Factors (mrem/pCi ingested) from FGR11 (contained in RESRAD Dose Conversion Library) | Ingestion Dose Conversion Factors (mrem/pCi ingested) from FGR11 (contained in RESRAD Dose Conversion Library) | ||
Plant Transfer Factors (pCi/g plant)/(pCi/g soil) | Plant Transfer Factors (pCi/g plant)/(pCi/g soil) Note: Plant ingestion pathway closed - input for plant transfer factors not required for Industrial Use dose calculations. | ||
Meat Transfer Factors (pCi/kg)/(pCi/d) | Meat Transfer Factors (pCi/kg)/(pCi/d) Note: Meat ingestion pathway closed - input for meat transfer factors not required for Industrial Use dose calculations. | ||
Milk Transfer Factors (pCi/L)/(pCi/d) | Milk Transfer Factors (pCi/L)/(pCi/d) Note: Milk ingestion pathway closed - input for milk transfer factors not required for Industrial Use dose calculations. | ||
Bioaccumulation Factors for Fish ((pCi/kg)/(pCi/L)) | Bioaccumulation Factors for Fish ((pCi/kg)/(pCi/L)) | ||
Ac-227 | Ac-227 P 2 S Lognormal-n NUREG/CR-7267 3.2 1.1 Am-241 P 2 S Lognormal-n NUREG/CR-7267 5.5 1.1 Am-243 P 2 S Lognormal-n NUREG/CR-7267 5.5 1.1 C-14 P 2 S Lognormal-n NUREG/CR-7267 13.0 1.1 Cm-243 P 2 S Lognormal-n NUREG/CR-7267 3.4 1.1 Cm-244 P 2 S Lognormal-n NUREG/CR-7267 3.4 1.1 Co-60 P 2 S Lognormal-n NUREG/CR-7267 4.3 0.9 7.4E+01 Cs-137 P 2 S Lognormal-n NUREG/CR-7267 7.8 0.9 2.4E+03 Eu-152 P 2 S Lognormal-n NUREG/CR-7267 4.9 1.6 1.3E+02 Eu-154 P 2 S Lognormal-n NUREG/CR-7267 4.9 1.6 1.3E+02 Fe-55 P 2 S Lognormal-n NUREG/CR-7267 5.1 1.9 1.6E+02 Gd-152 P 2 S Lognormal-n NUREG/CR-7267 3.4 1.1 3.0E+01 H-3 P 2 S Lognormal-n NUREG/CR-7267 0 0.1 1.0E+00 Mn-54 P 2 S Lognormal-n NUREG/CR-7267 5.5 1.9 2.4E+02 Nb-94 P 2 S Lognormal-n NUREG/CR-7267 5.7 1.1 3.0E+02 Ni-63 P 2 S Lognormal-n NUREG/CR-7267 3.0 0.6 2.0E+01 Np-237 P 2 S Lognormal-n NUREG/CR-7267 3.0 1.1 2.0E+01 Pa-231 P 2 S Lognormal-n NUREG/CR-7267 2.3 1.1 1.0E+01 | ||
Page 13 of 18 BHI Engineering | Page 13 of 18 BHI Engineering ENG-OCS-008 DCGL Values for Soil - Industrial Use Scenario Rev. 0 | ||
Values and Bases for RESRAD-Onsite Parameters for DCGL Calculations Industrial Use Scenario Pb-210 | Values and Bases for RESRAD-Onsite Parameters for DCGL Calculations Industrial Use Scenario Pb-210 P 2 S Lognormal-n NUREG/CR-7267 3.2 1.1 2.5E+02 Po-210 P 2 S Lognormal-n NUREG/CR-7267 3.6 1.5 3.7E+01 Pu-238 P 2 S Lognormal-n NUREG/CR-7267 10.0 1.0 2.2E+04 Pu-239 P 2 S Lognormal-n NUREG/CR-7267 10.0 1.0 2.2E+04 Pu-240 P 2 S Lognormal-n NUREG/CR-7267 10.0 1.0 2.2E+04 Pu-241 P 2 S Lognormal-n NUREG/CR-7267 10.0 1.0 2.2E+04 Ra-226 P 2 S Lognormal-n NUREG/CR-7267 1.4 1.9 4.1E+00 Ra-228 P 2 S Lognormal-n NUREG/CR-7267 1.4 1.9 4.1E+00 Sb-125 P 2 S Lognormal-n NUREG/CR-7267 3.6 1.5 3.7E+01 Sr-90 P 2 S Lognormal-n NUREG/CR-7267 1.1 1.4 3.0E+00 Tc-99 P 2 D 4.2E+01 75th percentile Te-125m P 2 S Lognormal-n NUREG/CR-7267 5.0 0.4 1.5E+02 Th-228 P 2 S Lognormal-n NUREG/CR-7267 4.6 1.1 9.9E+01 Th-229 P 2 S Lognormal-n NUREG/CR-7267 4.6 1.1 9.9E+01 Th-230 P 2 S Lognormal-n NUREG/CR-7267 4.6 1.1 9.9E+01 Th-232 P 2 S Lognormal-n NUREG/CR-7267 4.6 1.1 9.9E+01 U-233 P 2 S Lognormal-n NUREG/CR-7267 0.0 2.5 1.0E+00 U-234 P 2 S Lognormal-n NUREG/CR-7267 0.0 2.5 1.0E+00 U-235 P 2 S Lognormal-n NUREG/CR-7267 0.0 2.5 1.0E+00 U-236 P 2 S Lognormal-n NUREG/CR-7267 0.0 2.5 1.0E+00 Bioaccumulation Factors for Crustacea/ Mollusks ((pCi/kg)/(pCi/L)) RESRAD default value for each radionuclide applied 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 17 RESRAD Default NR NR NR NR points for dose | ||
Table 3 Notes: | Table 3 Notes: | ||
| Line 254: | Line 253: | ||
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 Triangular: 1 = minimum, 2 = mode, 3 = maximum Uniform: 1 = minimum, 2 = maximum | 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 Triangular: 1 = minimum, 2 = mode, 3 = maximum Uniform: 1 = minimum, 2 = maximum | ||
Page 14 of 18 BHI Engineering | Page 14 of 18 BHI Engineering ENG-OCS-008 DCGL Values for Soil - Industrial Use Scenario Rev. 0 | ||
Table 4: RESRAD Onsite Generated POM Doses and DCGL Values by ROC POM Dose | Table 4: RESRAD Onsite Generated POM Doses and DCGL Values by ROC POM Dose DCGL ROC (mrem/y per pCi/g) (pCi/g) | ||
Am-241 | Am-241 3.42E-02 7.31E+02 C-14 1.21E-02 2.07E+03 Cm-243 1.38E-01 1.81E+02 Cm-244 1.37E-02 1.82E+03 Co-60 3.15E+00 7.94E+00 Cs-137 6.99E-01 3.58E+01 Eu-152 1.42E+00 1.76E+01 Eu-154 1.53E+00 1.63E+01 Fe-55 2.98E-06 8.39E+06 H-3 4.98E-04 5.02E+04 Mn-54 7.34E-01 3.41E+01 Nb-94 2.01E+00 1.24E+01 Ni-63 3.23E-06 7.74E+06 Np-237 4.35E-01 5.75E+01 Pu-238 2.20E-02 1.14E+03 Pu-239 8.17E-02 3.06E+02 Pu-240 8.57E-02 2.92E+02 Pu-241 1.00E-03 2.50E+04 Sb-125 4.50E-01 5.56E+01 Sr-90 5.89E-03 4.24E+03 Tc-99 1.82E-03 1.37E+04 | ||
NOTE: The DCGL values in column 3 | NOTE: The DCGL values in column 3 can be adjusted to meet a revised release criterion by multiplying by the ratio of the revised release criterion (mrem/y) to 25 mrem/y. If administrative reduction is desired, the DCGL values can be reduced by multiplying by the desired administrative reduction factor. | ||
Page 15 of 18 BHI Engineering | Page 15 of 18 BHI Engineering ENG-OCS-008 DCGL Values for Soil - Industrial Use Scenario Rev. 0 | ||
Appendix A | Appendix A | ||
| Line 267: | Line 266: | ||
POM Doses by ROC Calculated Using the RESRAD-Onsite 7.2 Code | POM Doses by ROC Calculated Using the RESRAD-Onsite 7.2 Code | ||
Page 16 of 18 BHI Engineering | Page 16 of 18 BHI Engineering ENG-OCS-008 DCGL Values for Soil - Industrial Use Scenario Rev. 0 | ||
Am-241 Results: | Am-241 Results: | ||
RESRAD-ONSITE, Version 7.2 | RESRAD-ONSITE, Version 7.2 T<< Limit = 30 days 07/14/2023 12:58 Page 20 Probabilistic results summary : OCNGS Industrial Use_Soil_DCGL_Am241 File : C:\\RESRAD_FAMILY\\ONSITE\\7.2\\USERFILES\\RESRAD OC IU FILES\\AM241\\OC_IU_DCGL_AM241.RAD Peak of the mean dose (averaged over observations) at graphical times Repetition Time of peak mean dose Peak mean dose Years mrem/yr 1 0.000E+00 3.423E-02 | ||
C-14 Results: | C-14 Results: | ||
RESRAD-ONSITE, Version 7.2 | RESRAD-ONSITE, Version 7.2 T<< Limit = 30 days 07/12/2023 14:35 Page 20 Probabilistic results summary : OCNGS Industrial Use_Soil_DCGL_C14 File : C:\\RESRAD_FAMILY\\ONSITE\\7.2\\USERFILES\\RESRAD OC IU FILES\\C14\\OC_IU_SOIL_DCGL_C-14.RAD Peak of the mean dose (averaged over observations) at graphical times Repetition Time of peak mean dose Peak mean dose Years mrem/yr 1 4.125E+01 1.210E-02 | ||
Cm-243 Results: | Cm-243 Results: | ||
RESRAD-ONSITE, Version 7.2 | RESRAD-ONSITE, Version 7.2 T<< Limit = 30 days 07/12/2023 14:51 Page 20 Probabilistic results summary : OCNGS Industrial Use_Soil_DCGL_Cm243 File : C:\\RESRAD_FAMILY\\ONSITE\\7.2\\USERFILES\\RESRAD OC IU FILES\\CM243\\OC_IU_SOIL_DCGL_CM243.RAD Peak of the mean dose (averaged over observations) at graphical times Repetition Time of peak mean dose Peak mean dose Years mrem/yr 1 0.000E+00 1.379E-01 | ||
Cm-244 Results: | Cm-244 Results: | ||
RESRAD-ONSITE, Version 7.2 | RESRAD-ONSITE, Version 7.2 T<< Limit = 30 days 07/12/2023 15:19 Page 20 Probabilistic results summary : OCNGS Industrial Use_Soil_DCGL_Cm244 File : C:\\RESRAD_FAMILY\\ONSITE\\7.2\\USERFILES\\RESRAD OC IU FILES\\CM244\\OC_IU_SOIL_DCGL_CM244.RAD Peak of the mean dose (averaged over observations) at graphical times Repetition Time of peak mean dose Peak mean dose Years mrem/yr 1 0.000E+00 1.371E-02 | ||
Co-60 Results: | Co-60 Results: | ||
RESRAD-ONSITE, Version 7.2 | RESRAD-ONSITE, Version 7.2 T<< Limit = 30 days 07/12/2023 15:31 Page 20 Probabilistic results summary : OC_IU_Soil_DCGL_Co60 File : C:\\RESRAD_FAMILY\\ONSITE\\7.2\\USERFILES\\RESRAD OC IU FILES\\CO60\\OC_IU_SOIL_DCGL_CO60.RAD Peak of the mean dose (averaged over observations) at graphical times Repetition Time of peak mean dose Peak mean dose Years mrem/yr 1 0.000E+00 3.148E+00 | ||
Cs-137 Results: | Cs-137 Results: | ||
RESRAD-ONSITE, Version 7.2 | RESRAD-ONSITE, Version 7.2 T<< Limit = 30 days 07/12/2023 15:41 Page 20 Probabilistic results summary : OCNGS Industrial Use_Soil_DCGL_Cs137 File : C:\\RESRAD_FAMILY\\ONSITE\\7.2\\USERFILES\\RESRAD OC IU FILES\\CS137\\OC_IU_SOIL_DCGL_CS137.RAD Peak of the mean dose (averaged over observations) at graphical times Repetition Time of peak mean dose Peak mean dose Years mrem/yr 1 0.000E+00 6.992E-01 | ||
Eu-152 Results: | Eu-152 Results: | ||
RESRAD-ONSITE, Version 7.2 | RESRAD-ONSITE, Version 7.2 T<< Limit = 30 days 07/12/2023 15:49 Page 20 Probabilistic results summary : OCNGS Industrial Use_Soil_DCGL_Eu152 File : C:\\RESRAD_FAMILY\\ONSITE\\7.2\\USERFILES\\RESRAD OC IU FILES\\EU152\\OC_IU_SOIL_DCGL_EU152.RAD Peak of the mean dose (averaged over observations) at graphical times Repetition Time of peak mean dose Peak mean dose Years mrem/yr 1 0.000E+00 1.417E+00 | ||
Eu-154 Results: | Eu-154 Results: | ||
1RESRAD-ONSITE, Version 7.2 | 1RESRAD-ONSITE, Version 7.2 T<< Limit = 30 days 07/12/2023 15:58 Page 20 Probabilistic results summary : OCNGS Industrial Use_Soil_DCGL_Eu154 File : C:\\RESRAD_FAMILY\\ONSITE\\7.2\\USERFILES\\RESRAD OC IU FILES\\EU154\\OC_IU_SOIL_DCGL_EU154.RAD Peak of the mean dose (averaged over observations) at graphical times Repetition Time of peak mean dose Peak mean dose Years mrem/yr 1 0.000E+00 1.531E+00 | ||
Page 17 of 18 BHI Engineering | Page 17 of 18 BHI Engineering ENG-OCS-008 DCGL Values for Soil - Industrial Use Scenario Rev. 0 | ||
Fe-55 Results: | Fe-55 Results: | ||
RESRAD-ONSITE, Version 7.2 | RESRAD-ONSITE, Version 7.2 T<< Limit = 30 days 07/12/2023 16:07 Page 20 Probabilistic results summary : OCNGS Industrial Use_Soil_DCGL_Fe55 File : C:\\RESRAD_FAMILY\\ONSITE\\7.2\\USERFILES\\RESRAD OC IU FILES\\FE55\\OC_IU_SOIL_DCGL_FE55.RAD Peak of the mean dose (averaged over observations) at graphical times Repetition Time of peak mean dose Peak mean dose Years mrem/yr 1 0.000E+00 2.981E-06 | ||
H-3 Results: | H-3 Results: | ||
RESRAD-ONSITE, Version 7.2 | RESRAD-ONSITE, Version 7.2 T<< Limit = 30 days 07/12/2023 16:19 Page 20 Probabilistic results summary : OCNGS Industrial Use_Soil_DCGL_H3 File : C:\\RESRAD_FAMILY\\ONSITE\\7.2\\USERFILES\\RESRAD OC IU FILES\\H3\\OC_IU_SOIL_DCGL_H3.RAD Peak of the mean dose (averaged over observations) at graphical times Repetition Time of peak mean dose Peak mean dose Years mrem/yr 1 0.000E+00 4.984E-04 | ||
Mn-54 Results: | Mn-54 Results: | ||
RESRAD-ONSITE, Version 7.2 | RESRAD-ONSITE, Version 7.2 T<< Limit = 30 days 07/12/2023 16:28 Page 20 Probabilistic results summary : OCNGS Industrial Use_Soil_DCGL_Mn54 File : C:\\RESRAD_FAMILY\\ONSITE\\7.2\\USERFILES\\RESRAD OC IU FILES\\MN54\\OC_IU_DCGL_MN54.RAD Peak of the mean dose (averaged over observations) at graphical times Repetition Time of peak mean dose Peak mean dose Years mrem/yr 1 0.000E+00 7.335E-01 | ||
Nb-94 Results: | Nb-94 Results: | ||
RESRAD-ONSITE, Version 7.2 | RESRAD-ONSITE, Version 7.2 T<< Limit = 30 days 07/18/2023 09:59 Page 20 Probabilistic results summary : OC_IU_DCGL_Nb94 File : C:\\RESRAD_FAMILY\\ONSITE\\7.2\\USERFILES\\NB94\\OC_IU_DCGL_NB94.RAD Peak of the mean dose (averaged over observations) at graphical times Repetition Time of peak mean dose Peak mean dose Years mrem/yr 1 0.000E+00 2.008E+00 | ||
Ni-63 Results: | Ni-63 Results: | ||
RESRAD-ONSITE, Version 7.2 | RESRAD-ONSITE, Version 7.2 T<< Limit = 30 days 07/11/2023 14:33 Page 20 Probabilistic results summary : OC_IU_DCGL_Ni63 File : C:\\RESRAD_FAMILY\\ONSITE\\7.2\\USERFILES\\NI63\\OC_IU_DCGL_NI63.RAD Peak of the mean dose (averaged over observations) at graphical times Repetition Time of peak mean dose Peak mean dose Years mrem/yr 1 0.000E+00 3.225E-06 | ||
Np-237 Results: | Np-237 Results: | ||
RESRAD-ONSITE, Version 7.2 | RESRAD-ONSITE, Version 7.2 T<< Limit = 30 days 07/18/2023 14:02 Page 20 Probabilistic results summary : OC_IU_DCGL_Np237 File : C:\\RESRAD_FAMILY\\ONSITE\\7.2\\USERFILES\\NP237\\OC_IU_DCGL_NP237.RAD Peak of the mean dose (averaged over observations) at graphical times Repetition Time of peak mean dose Peak mean dose Years mrem/yr 1 0.000E+00 4.350E-01 | ||
Pu-238 Results: | Pu-238 Results: | ||
RESRAD-ONSITE, Version 7.2 | RESRAD-ONSITE, Version 7.2 T<< Limit = 30 days 07/18/2023 10:33 Page 20 Probabilistic results summary : OC_IU_DCGL_Pu238 File : C:\\RESRAD_FAMILY\\ONSITE\\7.2\\USERFILES\\PU238\\OC_IU_DCGL_PU238.RAD Peak of the mean dose (averaged over observations) at graphical times Repetition Time of peak mean dose Peak mean dose Years mrem/yr 1 0.000E+00 2.202E-02 | ||
Pu-239 Results: | Pu-239 Results: | ||
RESRAD-ONSITE, Version 7.2 | RESRAD-ONSITE, Version 7.2 T<< Limit = 30 days 01/17/2024 09:29 Page 20 Probabilistic results summary : OCNGS Industrial Use_DCGL_Pu240 r1 File : C:\\RESRAD_FAMILY\\ONSITE\\7.2\\USERFILES\\PU240\\OC_DCGL IU_PU240.RAD Peak of the mean dose (averaged over observations) at graphical times Repetition Time of peak mean dose Peak mean dose Years mrem/yr 1 1.000E+03 8.173E-02 | ||
Page 18 of 18 BHI Engineering | Page 18 of 18 BHI Engineering ENG-OCS-008 DCGL Values for Soil - Industrial Use Scenario Rev. 0 | ||
Pu-240 Results: | Pu-240 Results: | ||
RESRAD-ONSITE, Version 7.2 | RESRAD-ONSITE, Version 7.2 T<< Limit = 30 days 01/21/2024 09:55 Page 20 Probabilistic results summary : OC_IU_DCGL_Pu240_KL File : C:\\RESRAD_FAMILY\\ONSITE\\7.2\\USERFILES\\IU_SOIL\\PU240\\OC_IU_DCGL_PU240-KL.RAD Peak of the mean dose (averaged over observations) at graphical times Repetition Time of peak mean dose Peak mean dose Years mrem/yr 1 1.000E+03 8.570E-02 | ||
Pu-241 Results: | Pu-241 Results: | ||
RESRAD-ONSITE, Version 7.2 | RESRAD-ONSITE, Version 7.2 T<< Limit = 30 days 07/18/2023 16:02 Page 20 Probabilistic results summary : OC_IU_DCGL_Pu241 File : C:\\RESRAD_FAMILY\\ONSITE\\7.2\\USERFILES\\PU241\\OC_IU_DCGL_PU241.RAD Peak of the mean dose (averaged over observations) at graphical times Repetition Time of peak mean dose Peak mean dose Years mrem/yr 1 5.380E+01 1.002E-03 | ||
Sb-125 Results: | Sb-125 Results: | ||
RESRAD-ONSITE, Version 7.2 | RESRAD-ONSITE, Version 7.2 T<< Limit = 30 days 07/18/2023 10:09 Page 20 Probabilistic results summary : OC_IU_DCGL_Sb-125 File : C:\\RESRAD_FAMILY\\ONSITE\\7.2\\USERFILES\\SB125\\OC_IU_DCGL_SB125.RAD Peak of the mean dose (averaged over observations) at graphical times Repetition Time of peak mean dose Peak mean dose Years mrem/yr 1 0.000E+00 4.500E-01 | ||
Sr-90 Results: | Sr-90 Results: | ||
RESRAD-ONSITE, Version 7.2 | RESRAD-ONSITE, Version 7.2 T<< Limit = 30 days 07/11/2023 16:33 Page 20 Probabilistic results summary : OC_IU_DCGL_Sr-90 File : C:\\RESRAD_FAMILY\\ONSITE\\7.2\\USERFILES\\SR90\\OC_IU_DCGL_SR90.RAD Peak of the mean dose (averaged over observations) at graphical times Repetition Time of peak mean dose Peak mean dose Years mrem/yr 1 0.000E+00 5.891E-03 | ||
Tc-99 Results: | Tc-99 Results: | ||
RESRAD-ONSITE, Version 7.2 | RESRAD-ONSITE, Version 7.2 T<< Limit = 30 days 07/11/2023 16:45 Page 20 Probabilistic results summary : OC_IU_DCGL_Tc-99 File : C:\\RESRAD_FAMILY\\ONSITE\\7.2\\USERFILES\\TC99\\OC_IU_DCGL_TC99.RAD Peak of the mean dose (averaged over observations) at graphical times Repetition Time of peak mean dose Peak mean dose Years mrem/yr 1 1.701E+00 1.820E-03 | ||
Page 19 of 18}} | Page 19 of 18}} | ||
Revision as of 10:49, 4 October 2024
| ML24214A054 | |
| Person / Time | |
|---|---|
| Site: | Oyster Creek |
| Issue date: | 07/26/2023 |
| From: | Bisson J BHI Energy, Holtec Decommissioning International, Westinghouse |
| To: | Office of Nuclear Reactor Regulation |
| Shared Package | |
| ML24214A209 | List: |
| References | |
| HDI-OC-24-018 ENG-OCS-008, Rev 0 | |
| Download: ML24214A054 (1) | |
Text
ENGINEERING CALCULATION
Derived Concentration Guideline Levels Values for Soil - Industrial Use Scenario Oyster Creek Station ENG-OCS-008 Revision: 0 July 26, 2023
Prepared by:
BHI Energy 97 Libbey Industrial Pkwy Weymouth, MA
Prepared by
Approved by BHI Engineering ENG-OCS-008 DCGL Values for Soil - Industrial Use Scenario Rev. 0
1.0 PURPOSE The purpose of this calculation is to develop derived concentration guideline levels (DCGLs) values for assessing soil at the Oyster Creek Station (OCS) site.
2.0 APPLICABILITY This calculation addresses only the development of DCGLs for soil in open land areas at the OCS site.
3.0 REFERENCES
3.1 BHI Energy Engineering Procedure ENG -AP-02, Verification of Software Operability 3.2 ANL/EAD-4, Users Manual for RESRAD Version 6, U.S. Department of Energy - Argonne National Laboratory, July 2001 3.3 ANL/EVS/TM-18/1, RESRAD-Onsite 7.2 Users Guide, April 2018 3.4 ENG-OCS-007, RESRAD-Onsite Probabilistic Analysis - Industrial Use Scenario, July 2023 3.5 NUREG/CR-5512, Residual Radioactive Contamination from Decommissioning
- Volume 1: Technical Basis for Translating Contamination Levels to Annual Total Effective Dose Equivalent, Oct. 1992 (PNL-7994)
- Volume 3: Parameter Analysis, Draft Report for Comment, Oct. 1999 (SAND99-2148) 3.6 Radionuclide Selection for DCGL Development-Oyster Creek Station Site Characterization Project, January 2022
4.0 DISCUSSION The operability of the RESRAD-Onsite 7.2 computer code was verified on each computer used for code executions in accordance with BHI Energy Engineering procedure ENG -AP-02, Verification of Software Operability [3.1]. The RESRAD code has undergone extensive review, benchmarking, verification, and validation [3.2]. The RESRAD-Onsite 7.2 Users Guide [3.3] provided instructions for code use.
Sensitive RESRAD-Onsite input parameters have been identified for each radionuclide-of-concern (ROC) and conservative input values for use in DCGL calculations have been determined in ENG-OCS-007 [3.4].
The 75th percentile and 25th percentile values are recommended as reasonably conservative input values for the sensitive parameters in calculations for DCGL values for open land areas at the OCS site. The approach of assigning 25th and 75th percentile values of a sensitive parameters distribution to account for uncertainty in DCGL values has been accepted in past decommissioning projects (e.g., Yankee Rowe, Zion, Connecticut Yankee, Humboldt Bay, Fort Calhoun Station, and SMUD) by the U.S. Nuclear Regulatory Commission (NRC) and State regulators. Refer to ENG-OCS-007 for details regarding the probabilistic analyses.
RESRAD-Onsite code executions were performed for each ROC identified for the OCS site. The peak of the mean (POM) dose for each ROC was used to determine the DCGL value that corresponded to the NRC dose criteria established in 10CFR20.1403 (i.e., 25 mrem/y). The DCGL value for each ROC was calculated as follows:
DCGL(pCi/g) = (25 mrem/y)/(POM dose (mrem/y per 1 pCi/g)).
5.0 SCENARIO and INPUT
5.1 Scenario
Page 1 of 18 BHI Engineering ENG-OCS-008 DCGL Values for Soil - Industrial Use Scenario Rev. 0
5.1.1 The dose model behind the DCGL values is an Industrial Use Scenario. The average member of the critical group is a hypothetical full-time industrial worker who is assigned to outdoor tasks and catches and ingests fish from the intake/discharge canal during off-hours. As an industrial site, ingestion exposure pathways for plant, meat, and milk products originating on the site do not exist. Drinking water is assumed to be provided by a municipal water supply supported by site infrastructure. The exposure pathways used to estimate human radiation exposure resulting from residual radioactivity in the soil for this scenario are the following:
- Direct external radiation exposure pathway
- Inhalation exposure pathway
- Aquatic food ingestion exposure pathway
- Inadvertent ingestion of contaminated soil
5.1.2 Time fractions: The hypothetical industrial worker is assumed to spend 7h per day on outdoor tasks and 1h per day for indoor work breaks (i.e., 15 min morning break, 30 min lunch, and 15 min afternoon break). Under this assumption, the worker spends 35h/week performing outdoor tasks and 5h/week indoors on work breaks. Over a 50-week occupational year, the worker spends (35h/week
- 50 weeks =) 1750h outdoors at the industrial site and (5h/week
- 50 weeks =) 250 h indoors at the site. A calendar year has (24h/d
- 365.25d =) 8766h.
- Fraction of calendar year off-site = (8766h - 2000h)/8766h = 0.77 (no exposure to radioactive material at the site during this time)
- Fraction of calendar year outdoors at the site = 1750h/8766h = 0.20 (receives site radiation exposure)
- Fraction of calendar year indoors at the site = 250h/8766h = 0.03 (receives site radiation exposure) 5.1.3 Site Conceptual Model: The conceptual hydrological model for this Industrial Use scenario has three geological strata: (1) a contaminated zone (CZ), (2) an unsaturated zone (UZ), and (3) a saturated zone (SZ). The contaminated zone is assumed to be uncovered, equivalent in size to the OCS Protected Area (PA),
124,400 m2. The UZ, SZ, and groundwater in the SZ are assumed initially uncontaminated.
5.2 Input
5.2.1 A site-specific suite of ROCs has been identified for the OCS site [3.6]. OCS ROCs are shown in Table 1 below.
Table 1: Radionuclides-of-Concern for input to RESRAD-Onsite:
ROCa Progenyb ROCa Progenyb Am-241 Np-237, Th-229, U-233 Nb-94 ---
Cm-243 Ac-227, Am-243, Pa-231, Np-237 Th-229, U-233 Pu-239, U-235 Cm-244 Pu-240, Ra-228, Th-228, Pu-238 Pb-210, Po-210, Ra-226, Th-232, U-236 Th-230, U-234 Cs-137 --- Pu-239 Ac-227, Pa-231, U-235
Page 2 of 18 BHI Engineering ENG-OCS-008 DCGL Values for Soil - Industrial Use Scenario Rev. 0
ROCa Progenyb ROCa Progenyb Co-60 --- Pu-240 Ra-228, Th-228, Th-232, U-236 Eu-152 Gd-152 Pu-241 Am-241, Np-237, Th-229, U-233 Eu-154 --- Sb-125 Te-125m Fe-55 --- Sr-90 ---
Mn-54 ---
a ROC = radionuclide-of-concern identified for the OCS site.
b Included automatically with input of parent ROC.
5.2.2 Table 2 summarizes the following information from ENG-OCS-007:
- RESRAD-Onsite parameters identified as sensitive.
- ROC for which the parameter was determined to be sensitive.
- 25th and 75th percentile values from the parameter distributions.
5.2.3 Table 3 provides the input value for each RESRAD-Onsite parameter for the DCGL calculations. Separate RESRAD-Onsite code executions were performed for each ROC.
Note: Except for values assigned to sensitive parameters, all input values for non-sensitive parameters are the same as those used in the probabilistic analysis (ENG-OCS-007).
6.0 RESULTS 6.1 The calculated POM dose for each ROC is provided in column 2 of Table 4. The calculated POM doses from the RESRAD-Onsite 7.2 output reports are provided by ROC in Appendix A.
6.2 Column 3 of Table 4 provides the DCGL values corresponding to an annual dose equal to 25 mrem. The DCGL for each ROC was calculated from the POM dose using the following relationship:
DCGL(pCi/g) = (25 mrem/y)/(POM mrem/y per 1 pCi/g)
Page 3 of 18 BHI Engineering ENG-OCS-008 DCGL Values for Soil - Industrial Use Scenario Rev. 0
Table 2: RESRAD-Onsite Generated Percentile Values for Sensitive Input Parameters (from ENG-OCS-007)
Radionuclide Sensitive Parameter PRCC Value Am-241 Inhalation Rate 0.66 Mass Loading for Inhalation 0.84 Soil Ingestion 0.99 C-14 Thickness of CZ 0.26 Kd in UZ -0.51 Cm-243 Inhalation Rate 0.31 Mass Loading for Inhalation 0.49 External Shielding Factor 0.87 Soil Ingestion 0.94 Cm-244 Inhalation Rate 0.63 Mass Loading for Inhalation 0.82 Soil Ingestion 0.99 Co-60 External Shielding Factor 0.88 Kd in CZ 0.48 Cs-137 External Gamma Shielding Factor 0.96 Eu-152 External Shielding Factor 0.87 Kd in CZ 0.48 Eu-154 External Shielding Factor 0.86 Kd in CZ 0.48 Fe-55 Inhalation Rate 0.54 Mass Loading for Inhalation 0.77 Soil Ingestion 1.00 H-3 Thickness of CZ 0.71 Evapotranspiration Coefficient 0.59 Inhalation Rate 0.80 Kd in CZ -0.28 Mn-54 External Shielding Factor 0.94 Kd in CZ 0.28 Nb-94 External Shielding Factor 0.96 Ni-63 Soil Ingestion 1.00 Kd in CZ 0.36 Np-237 Kd in CZ 0.61 Mass Loading for Inhalation 0.32 External Shielding Factor 0.72 Soil Ingestion 0.85 Pu-238 Inhalation Rate 0.62 Mass Loading for Inhalation 0.84 Soil Ingestion 0.99 Pu-239 Soil Ingestion 0.43 Kd in CZ 0.57 Kd in UZ -0.34 Pu-240 Soil Ingestion 0.43 Kd in CZ 0.54 Kd in UZ -0.29
Page 4 of 18 BHI Engineering ENG-OCS-008 DCGL Values for Soil - Industrial Use Scenario Rev. 0
Radionuclide Sensitive Parameter PRCC Value Pu-241 Kd of Am-241 in CZ 0.44 Mass Loading for Inhalation 0.47 Soil Ingestion 0.93 Kd in CZ 0.28 Sb-125 External Shielding Factor 0.85 Kd in CZ 0.73 Sr-90 External Shielding Factor 0.66 Soil Ingestion 0.89 Kd in CZ 0.59 Tc-99 Contaminated Fraction for Aquatic Food 0.53 Kd in UZ -0.31 Fish Transfer Factor 0.80
Page 5 of 18 BHI Engineering ENG-OCS-008 DCGL Values for Soil - Industrial Use Scenario Rev. 0
Table 3. Summary of Values for RESRAD Input Parameters
Values and Bases for RESRAD-Onsite Parameters for DCGL Calculations Industrial Use Scenario RESRAD Exposure Pathways External Gamma Open Inhalation Open Plant Ingestion Close Meat Ingestion Close Milk Ingestion Close Aquatic Foods Open Drinking Water Close Soil Ingestion Open Radon Close Distribution's Statistical Median/
Parameter (unit) Typea Priorityb Treatmentc Value/Distribution Basis Parametersd Mean 1 2 3 4 Soil Concentrations Basic radiation dose P 3 D 25 10 CFR 20.1402 NR NR NR NR limit (mrem/y)
Initial principal P 2 D 1 Unit Value NR NR NR NR radionuclide (pCi/g)
Distribution coefficients (sand soil type assigned to contaminated, unsaturated. and saturated zones) (cm3/g)
Ac-227 P 1 S Truncated lognormal-n NUREG/CR-7267 7.44 1.1 0.001 0.999 1700 Am-241 P 1 D 3.7E+03 (CZ) 75th percentile
S Truncated lognormal-n ANL/EVS/TM-14/4 6.91 1.95 0.001 0.999 1000 (UZ, SZ)
Am-243 P 1 S Truncated lognormal-n ANL/EVS/TM-14/4 6.91 1.95 0.001 0.999 1000 C-14 P 1 D 6.2E+00 (UZ) 25th percentile
S Truncated lognormal-n NUREG/CR-7267 3.04 1.82 0.001 0.999 21 (CZ, SZ)
Cm-243 P 1 S Truncated lognormal-n ANL/EVS/TM-14/4 8.13 2.64 0.001 0.999 3400 Cm-244 P 1 S Truncated lognormal-n ANL/EVS/TM-14/4 8.13 2.64 0.001 0.999 3400 Co-60 P 1 D 1.8E+03 (CZ) 75th percentile
S Truncated lognormal-n ANL/EVS/TM-14/4 5.56 2.89 0.001 0.999 260 (UZ, SZ)
Cs-137 P 1 S Truncated lognormal-n ANL/EVS/TM-14/4 6.27 1.79 0.001 0.999 530 Eu-152 P 1 D 1.4E+04 (CZ) 75th percentile
S Truncated lognormal-n NUREG/CR-7267 6.86 4.01 0.001 0.999 955 (UZ,SZ)
Eu-154 P 1 D 1.4E+04 (CZ) 75th percentile
S Truncated lognormal-n NUREG/CR-7267 6.86 4.01 0.001 0.999 955 (UZ,SZ)
Fe-55 P 1 S Truncated lognormal-n ANL/EVS/TM-14/4 5.77 0 0.001 0.999 320 Gd-152 P 1 S Truncated lognormal-n NUREG/CR-7267 1.61 3.22 0.001 0.999 5 H-3 P 1 D 4.3E-02 (CZ) 25th percentile
S Truncated lognormal-n NUREG/CR-7267 -2.81 0.5 0.001 0.999 0.06 (UZ,SZ)
Mn-54 P 1 D 5.8E+03 (CZ) 75th percentile
S Truncated lognormal-n ANL/EVS/TM-14/4 6.89 2.64 0.001 0.999 980 (UZ,SZ)
Page 6 of 18 BHI Engineering ENG-OCS-008 DCGL Values for Soil - Industrial Use Scenario Rev. 0
Values and Bases for RESRAD-Onsite Parameters for DCGL Calculations Industrial Use Scenario Nb-94 P 1 S Truncated lognormal-n NUREG/CR-7267 7.31 1.39 0.001 0.999 1500 Ni-63 P 1 D 6.1E+02 (CZ) 75th percentile
S Truncated lognormal-n ANL/EVS/TM-14/4 4.87 2.3 0.001 0.999 130 (UZ,SZ)
Np-237 P 1 D 3.6E+01 (CZ) 75th percentile
S Truncated lognormal-n ANL/EVS/TM-14/4 2.64 1.39 0.001 0.999 14 (UZ, SZ)
Pa-231 P 1 S Truncated lognormal-n NUREG/CR-7267 7.6 1.1 0.001 0.999 2000 Pb-210 P 1 S Truncated lognormal-n ANL/EVS/TM-14/4 5.39 1.39 0.001 0.999 220 Po-210 P 1 S Truncated lognormal-n ANL/EVS/TM-14/4 4.61 1.79 0.001 0.999 100 Pu-238 P 1 S Truncated lognormal-n ANL/EVS/TM-14/4 5.99 1.39 0.001 0.999 400 Pu-239 P 1 D 1.0E+03 (CZ) 75th percentile 1.6E+02 (UZ) 25th percentile
S Truncated lognormal-n ANL/EVS/TM-14/4 5.99 1.39 0.001 0.999 400 (SZ)
Pu-240 P 1 D 1.0E+03 (CZ) 75th percentile D 1.6E+02 (UZ) 25th percentile
S Truncated lognormal-n ANL/EVS/TM-14/4 5.99 1.39 0.001 0.999 400 (SZ)
Pu-241 P 1 D 1.0E+03 (CZ) 75th percentile
S Truncated lognormal-n ANL/EVS/TM-14/4 5.99 1.39 0.001 0.999 400 (UZ, SZ)
Ra-226 P 1 S Truncated lognormal-n ANL/EVS/TM-14/4 8.04 2.08 0.001 0.999 3100 Ra-228 P 1 S Truncated lognormal-n ANL/EVS/TM-14/4 8.04 2.08 0.001 0.999 3100 Sb-125 P 1 D 5.6E+01 (CZ) 75th percentile
S Truncated lognormal-n ANL/EVS/TM-14/4 2.83 1.79 0.001 0.999 17 (UZ,SZ)
Sr-90 P 1 D 7.3E+01 (CZ) 75th percentile
S Truncated lognormal-n ANL/EVS/TM-14/4 3.09 1.79 0.001 0.999 22 (UZ.SZ)
Tc-99 P 1 D 1.9E-02 (UZ) 25th percentile
S Truncated lognormal-n ANL/EVS/TM-14/4 -3.22 1.1 0.001 0.999 0.04 (CZ, SZ)
Te-125m P 1 S Truncated lognormal-n NUREG/CR-7267 6.31 3.22 0.001 0.999 550 Th-228 P 1 S Truncated lognormal-n ANL/EVS/TM-14/4 6.55 2.4 0.001 0.999 700 Th-229 P 1 S Truncated lognormal-n ANL/EVS/TM-14/4 6.55 2.4 0.001 0.999 700 Th-230 P 1 S Truncated lognormal-n ANL/EVS/TM-14/4 6.55 2.4 0.001 0.999 700 Th-232 P 1 S Truncated lognormal-n ANL/EVS/TM-14/4 6.55 2.4 0.001 0.999 700 U-233 P 1 S Truncated lognormal-n ANL/EVS/TM-14/4 4.7 2.48 0.001 0.999 110 U-234 P 1 S Truncated lognormal-n ANL/EVS/TM-14/4 4.7 2.48 0.001 0.999 110 U-235 P 1 S Truncated lognormal-n ANL/EVS/TM-14/4 4.7 2.48 0.001 0.999 110 U-236 P 1 S Truncated lognormal-n ANL/EVS/TM-14/4 4.7 2.48 0.001 0.999 110 Initial concentration P 3 D 0 Ground water NR NR NR NR of radionuclides uncontaminated present in groundwater (pCi/l)
Calculation Times Time since placement P 3 D 0 NR NR NR NR of material (y)
Time for calculations P 3 D 1, 3, 10, 30, 100, 300, 1000 RESRAD Default NR NR NR NR (y)
Page 7 of 18 BHI Engineering ENG-OCS-008 DCGL Values for Soil - Industrial Use Scenario Rev. 0
Values and Bases for RESRAD-Onsite Parameters for DCGL Calculations Industrial Use Scenario Contaminated Zone Area of contaminated P 2 D 124,400 OCGS PA NR NR NR NR zone (m2)
Thickness of P 2 D 3.0E+00 75th percentile value contaminated zone assigned to C-14, H-3 (m)
S Uniform Site-specific distribution; 0.1524 3.96 2.06 assigned to all other ROCs Length parallel to P 2 D 398 Site-specific - assumed NR NR NR NR aquifer flow (m) diameter of a circle with an area = OCGS contaminated zone, 124,400 m2 Cover and Contaminated Zone Hydrological Data Cover depth (m) P 2 D 0 No cover NR NR NR NR Density of P 1 S Bounded Normal NUREG/CR-7267 1.5105 0.159 1.019 2.002 1.5105 contaminated zone distribution for site soil (g/cm3) type - sand.
Contaminated zone P 2 D 6E-04 NUREG/CR-7267; NR NR NR NR erosion rate (m/y) assumed erosion rate for site with shallow slope (i.e., relatively level)
Contaminated zone P 2 S Bounded Normal NUREG/CR-7267 0.43 0.06 0.2446 0.6154 0.43 total porosity distribution for site soil type - sand Contaminated zone P 3 D 0.18 Value based on site-NR NR NR NR field capacity specific soil type (sand);
calculated using equation in NUREG/CR-7267 Contaminated zone P 2 D 2741 2017 Hydrogeologic NR NR NR NR hydraulic Investigation Report conductivity (m/y)
Contaminated zone b P 2 S Bounded NUREG/CR-7267 - 0.0253 0.216 0.501 1.90 0.975 parameter Log Normal n distribution for site soil type - sand Humidity in air P 3 D 6.6 Figure 1 in Regional and NR NR NR NR (g/m3) Site-Specific Absolute Humidity Data for Use in Tritium Dose Calculations (figure provide below)
Evapotranspiration P 2 D 6.9E-01 75th percentile assigned to coefficient H-3
S Uniform NUREG/CR-7267 assigned 0.5 0.75 0.625 to all other ROCs Average annual wind P 2 D 3.13 Internet search: NR NR NR NR speed (m/s) https://www.windfinder.co m/windstatistics/oyster_cre ek_barnegat_bay Precipitation (m/y) P 2 D 1.4 Annual Report on the NR NR NR NR Meteorological Program at Oyster Creek Generating Station - average annual precipitation for 2015 through 2020 Irrigation (m/y) B 3 D 0.2 RESRAD default NR NR NR NR
Irrigation mode B 3 D Overhead Overhead irrigation is NR NR NR NR common practice for crops in U.S.
Runoff coefficient P 2 D 0.2 Value determined using NR NR NR NR methodology described in Data Collection Handbook and NUREG/CR-7267 Page 8 of 18 BHI Engineering ENG-OCS-008 DCGL Values for Soil - Industrial Use Scenario Rev. 0
Values and Bases for RESRAD-Onsite Parameters for DCGL Calculations Industrial Use Scenario Watershed area for P 3 D 1.01E+08 NJ-GeoWeb (NJDEP NR NR NR NR nearby stream or BGIS) pond (m2)
Accuracy for - 3 D 1.00E-03 RESRAD Default NR NR NR NR water/soil computations Saturated Zone Hydrological Data Density of saturated P 1 S Bounded Normal NUREG/CR-7267 Table 1.5105 0.159 1.019 2.002 1.5105 zone (g/cm3) C-1, distribution for site soil type - sand Saturated zone total P 1 S Bounded Normal NUREG/CR-7267 0.43 0.06 0.2446 0.6154 0.43 porosity distribution for site soil type - sand Saturated zone P 1 D 0.25 2017 Hydrogeologic NR NR NR NR effective porosity Investigation Report Saturated zone field P 3 D 0.18 Value based on site-NR NR NR NR capacity specific soil type (sand);
calculated using equation in NUREG/CR-7267 Saturated zone P 1 D 2741 2017 Hydrogeologic NR NR NR NR hydraulic Investigation Report conductivity (m/y)
Saturated zone P 2 S Uniform 2017 Hydrogeologic 0.01 0.04 0.025 hydraulic gradient Investigation Report (section 5.1.4)
Saturated zone b P 2 S Bounded NUREG/CR-7267 - 0.0253 0.216 0.501 1.90 0.975 parameter Log Normal n distribution for site soil type - sand Water table drop rate P 3 D 1.00E-03 RESRAD Default NR NR NR NR (m/y)
Well pump intake P 2 D 10 RESRAD Default NR NR NR NR depth (m below water table)
Model: P 3 D ND ND model recommended NR NR NR NR Nondispersion (ND) for contaminant areas or Mass-Balance >1,000 m2 (MB)
Well pumping rate P 2 N/A Input not required -
(m3/y) drinking water pathway inactive Unsaturated Zone Hydrological Data Number of P 3 D 1 2017 Hydrogeologic NR NR NR NR unsaturated zone Investigation Report strata (Figures 5.7 & 5.8)
Unsat. zone 1, P 1 S uniform Distribution developed 1.37 5.94 3.65 thickness (m) from depth range for site groundwater, 5 ft - 20 ft (2017 Hydrogeologic Investigation Report (section 2.4.3) and minimum thickness of CZ (0.5 ft)
Unsat. zone 1, soil P 2 S Bounded Normal NUREG/CR-7267 1.5105 0.159 1.019 2.002 1.5105 density (g/cm3) distribution for site soil type - sand Unsat. zone 1, total P 2 S Bounded Normal NUREG/CR-7267 0.43 0.06 0.2446 0.6154 0.43 porosity distribution for site soil type - sand Unsat. zone 1, P 2 D 0.25 2017 Hydrogeologic NR NR NR NR effective porosity Investigation Report
Page 9 of 18 BHI Engineering ENG-OCS-008 DCGL Values for Soil - Industrial Use Scenario Rev. 0
Values and Bases for RESRAD-Onsite Parameters for DCGL Calculations Industrial Use Scenario Unsat. zone 1, field P 3 D 0.18 Value based on site-NR NR NR NR capacity specific soil type (sand);
calculated using equation in NUREG/CR-7267 Unsat. zone 1, P 2 D 2741 2017 Hydrogeologic NR NR NR NR hydraulic Investigation Report conductivity (m/y)
Unsat. zone 1, soil-P 2 S Bounded NUREG/CR-7267 - 0.0253 0.216 0.501 1.90 0.975 specific b parameter Log Normal n distribution for site soil type - sand Occupancy Inhalation rate (m3/y) B 3 D 9.9E+03 75th percentile value assigned to Am-241, Cm-243, Cm-244, Fe-55, H-3, Pu-238 S
Triangular NUREG/CR-7267 assigned 4380 8400 13000 8593 to all other ROCs Mass loading for P 2 D 2.9E-05 75th percentile value inhalation (g/m3) assigned to Am-241, Cm-243, Cm-244, Fe-55, Np-237, Pu-238, Pu-241
S Continuous linear NUREG/CR-7267 assigned 2.3E-5 to all other ROCs Exposure duration B 3 D 30 RESRAD Default NR NR NR NR Indoor dust filtration P 2 S Uniform NUREG/CR-7267 0.15 0.95 0.55 factor Shielding factor, P 2 D 4.0E-01 75th percentile assigned to external gamma Cm-243, Co-60, Cs-137, Eu-152, Eu-154, Mn-54, Nb-94, Np-237, Sb-125, Sr-90
S Bounded lognormal-n NUREG/CR-7267 assigned -1.3 0.59 0.044 1 0.2725 to all other ROCs Fraction of time spent B 3 D 0.03 Fraction of calendar year NR NR NR NR indoors assuming 1h/work day for daily work breaks Fraction of time spent B 3 D 0.2 Fraction of calendar year NR NR NR NR outdoors assuming 7h/work day for outside tasks Shape factor flag, P 3 D Circular RESRAD Default - NR NR NR NR external gamma Circular contaminated zone assumed Ingestion, Dietary Fruits, vegetables, B 2 D N/A Input not required - plant NR NR NR NR grain consumption ingestion pathway inactive (kg/y)
Leafy vegetable B 3 D N/A Input not required - plant NR NR NR NR consumption (kg/y) ingestion pathway inactive Milk consumption B 2 D N/A Input not required - milk NR NR NR NR (L/y) ingestion pathway inactive Meat and poultry B 3 D N/A Input not required - meat NR NR NR NR consumption (kg/y) ingestion pathway inactive Fish consumption B 3 D 20.6 NUREG/CR-5512, Vol. 3 NR NR NR NR (kg/y)
Other seafood B 3 D 0.9 RESRAD Default NR NR NR NR consumption (kg/y)
Page 10 of 18 BHI Engineering ENG-OCS-008 DCGL Values for Soil - Industrial Use Scenario Rev. 0
Values and Bases for RESRAD-Onsite Parameters for DCGL Calculations Industrial Use Scenario Soil & dust ingestion B 2 D 2.4E+01 75th percentile value rate (g/yr) assigned to Am-241, Cm-243, Cm-244, Fe-55, Ni-63, Np-237, Pu-238, Pu-239, Pu-240, Pu-241, Sr-90
S Triangular NUREG/CR-7267 assigned 0 18.3 36.5 18.3 to all other ROCs Drinking water intake B 2 N/A Input not required -
(L/y) drinking water pathway inactive Contamination P 3 N/A Input not required -
fraction of drinking drinking water pathway water inactive Contamination P 3 N/A Input not required - water fraction of household pathway inactive water Contamination P 3 N/A Input not required -
fraction of livestock drinking water/ingestion water pathways inactive Contamination P 3 N/A Input not required - plant fraction of irrigation ingestion pathway inactive water Contamination P 2 D 6.1E-01 75th percentile assigned to fraction of aquatic Tc-99 food S Triangular NUREG/CR-7267 assigned 0 0.39 1 0.45 to all other ROCs Contamination P 3 N/A Input not required - plant fraction of plant food ingestion pathway inactive Contamination P 3 N/A Input not required - meat fraction of meat ingestion pathway inactive Contamination P 3 N/A Input not required - milk fraction of milk ingestion pathway inactive Ingestion, Non-Dietary Livestock fodder M 3 N/A Input not required - meat intake for meat (kg/d) ingestion pathway inactive Livestock fodder M 3 N/A Input not required - milk intake for milk (kg/d) ingestion pathway inactive Livestock water M 3 N/A Input not required - water intake for meat (L/d) ingestion pathway inactive Livestock water M 3 N/A Input not required - milk intake for milk (L/d) ingestion pathway inactive Livestock soil intake M 3 N/A Input not required - meat (kg/d) ingestion pathway inactive Mass loading for P 3 N/A Input not required - plant foliar deposition ingestion pathway inactive (g/m3)
Depth of soil mixing P 2 D 0.15 RESRAD Default NR NR NR NR layer (m)
Depth of roots (m) P 1 N/A Input not required - plant ingestion pathway inactive Drinking water P 3 N/A Input not required -
fraction from ground drinking water ingestion water pathway inactive Household water P 3 N/A Input not required -
fraction from ground drinking water pathway water (if used) inactive Livestock water P 3 N/A Input not required -
fraction from ground drinking water/meat water ingestion pathways inactive
Page 11 of 18 BHI Engineering ENG-OCS-008 DCGL Values for Soil - Industrial Use Scenario Rev. 0
Values and Bases for RESRAD-Onsite Parameters for DCGL Calculations Industrial Use Scenario Irrigation fraction P 3 N/A Input not required -
from ground water drinking water pathway inactive Wet weight crop P 2 N/A Input not required - plant yield for Non-Leafy ingestion pathway inactive (kg/m2)
Wet weight crop P 3 N/A Input not required - plant yield for Leafy ingestion pathway inactive (kg/m2)
Wet weight crop P 3 N/A Input not required - meat yield for Fodder ingestion pathway inactive (kg/m2)
Growing Season for P 3 N/A Input not required - plant Non-Leafy (y) ingestion pathway inactive Growing Season for P 3 N/A Input not required - plant Leafy (y) ingestion pathway inactive Growing Season for P 3 N/A Input not required - meat Fodder (y) ingestion pathway inactive Translocation Factor P 3 N/A Input not required - plant for Non-Leafy ingestion pathway inactive Translocation Factor P 3 N/A Input not required - plant for Leafy ingestion pathway inactive Translocation Factor P 3 N/A Input not required - meat for Fodder ingestion pathway inactive Weathering Removal P 2 N/A Input not required - plant Constant for ingestion pathway inactive Vegetation (1/y)
Wet Foliar P 3 N/A Input not required - plant Interception Fraction ingestion pathway inactive for Non-Leafy Wet Foliar P 2 N/A Input not required - plant Interception Fraction ingestion pathway inactive for Leafy Wet Foliar P 3 N/A Input not required - meat Interception Fraction ingestion pathway inactive for Fodder Dry Foliar P 3 N/A Input not required - plant Interception Fraction ingestion pathway inactive for Non-Leafy Dry Foliar P 3 N/A Input not required - plant Interception Fraction ingestion pathway inactive for Leafy Dry Foliar P 3 N/A Input not required - meat Interception Fraction ingestion pathway inactive for Fodder Storage times of contaminated foodstuffs (days)
Fruits, non-leafy B 3 N/A Input not required - plant vegetables, and grain ingestion pathway inactive Leafy vegetables B 3 N/A Input not required - plant ingestion pathway inactive Milk B 3 N/A Input not required - milk ingestion pathway inactive Meat and poultry B 3 N/A Input not required - meat ingestion pathway inactive Fish B 3 D 7 RESRAD Default NR NR NR NR Crustacea and B 3 D 7 RESRAD Default NR NR NR NR mollusks Well water B 3 N/A Input not required -
drinking water pathway inactive Page 12 of 18 BHI Engineering ENG-OCS-008 DCGL Values for Soil - Industrial Use Scenario Rev. 0
Values and Bases for RESRAD-Onsite Parameters for DCGL Calculations Industrial Use Scenario Surface water B 3 N/A Input not required drinking water pathway inactive Livestock fodder B 3 N/A Input not required - meat ingestion pathway inactive Special Radionuclides (C-14)
C-12 concentration in P 3 D 2.00E-05 RESRAD Default NR NR NR NR water (g/cm3)
C-12 concentration in P 3 D 3.00E-02 RESRAD Default NR NR NR NR contaminated soil (g/g)
Fraction of P 3 D 2.00E-02 RESRAD Default NR NR NR NR vegetation carbon from soil Fraction of P 3 D 9.80E-01 RESRAD Default NR NR NR NR vegetation carbon from air C-14 evasion layer P 2 D 0.3 RESRAD Default NR NR NR NR thickness in soil (m)
C-14 evasion flux P 3 D 7.00E-07 RESRAD Default NR NR NR NR rate from soil (1/s)
C-12 evasion flux P 3 D 1.00E-10 RESRAD Default NR NR NR NR rate from soil (1/s)
Fraction of grain in B 3 D 0.8 RESRAD Default NR NR NR NR beef cattle feed Fraction of grain in B 3 D 0.2 RESRAD Default NR NR NR NR milk cow feed Inhalation Dose Conversion Factors (mrem/pCi inhaled) from FGR11 (contained in RESRAD Dose Conversion Library)
Ingestion Dose Conversion Factors (mrem/pCi ingested) from FGR11 (contained in RESRAD Dose Conversion Library)
Plant Transfer Factors (pCi/g plant)/(pCi/g soil) Note: Plant ingestion pathway closed - input for plant transfer factors not required for Industrial Use dose calculations.
Meat Transfer Factors (pCi/kg)/(pCi/d) Note: Meat ingestion pathway closed - input for meat transfer factors not required for Industrial Use dose calculations.
Milk Transfer Factors (pCi/L)/(pCi/d) Note: Milk ingestion pathway closed - input for milk transfer factors not required for Industrial Use dose calculations.
Bioaccumulation Factors for Fish ((pCi/kg)/(pCi/L))
Ac-227 P 2 S Lognormal-n NUREG/CR-7267 3.2 1.1 Am-241 P 2 S Lognormal-n NUREG/CR-7267 5.5 1.1 Am-243 P 2 S Lognormal-n NUREG/CR-7267 5.5 1.1 C-14 P 2 S Lognormal-n NUREG/CR-7267 13.0 1.1 Cm-243 P 2 S Lognormal-n NUREG/CR-7267 3.4 1.1 Cm-244 P 2 S Lognormal-n NUREG/CR-7267 3.4 1.1 Co-60 P 2 S Lognormal-n NUREG/CR-7267 4.3 0.9 7.4E+01 Cs-137 P 2 S Lognormal-n NUREG/CR-7267 7.8 0.9 2.4E+03 Eu-152 P 2 S Lognormal-n NUREG/CR-7267 4.9 1.6 1.3E+02 Eu-154 P 2 S Lognormal-n NUREG/CR-7267 4.9 1.6 1.3E+02 Fe-55 P 2 S Lognormal-n NUREG/CR-7267 5.1 1.9 1.6E+02 Gd-152 P 2 S Lognormal-n NUREG/CR-7267 3.4 1.1 3.0E+01 H-3 P 2 S Lognormal-n NUREG/CR-7267 0 0.1 1.0E+00 Mn-54 P 2 S Lognormal-n NUREG/CR-7267 5.5 1.9 2.4E+02 Nb-94 P 2 S Lognormal-n NUREG/CR-7267 5.7 1.1 3.0E+02 Ni-63 P 2 S Lognormal-n NUREG/CR-7267 3.0 0.6 2.0E+01 Np-237 P 2 S Lognormal-n NUREG/CR-7267 3.0 1.1 2.0E+01 Pa-231 P 2 S Lognormal-n NUREG/CR-7267 2.3 1.1 1.0E+01
Page 13 of 18 BHI Engineering ENG-OCS-008 DCGL Values for Soil - Industrial Use Scenario Rev. 0
Values and Bases for RESRAD-Onsite Parameters for DCGL Calculations Industrial Use Scenario Pb-210 P 2 S Lognormal-n NUREG/CR-7267 3.2 1.1 2.5E+02 Po-210 P 2 S Lognormal-n NUREG/CR-7267 3.6 1.5 3.7E+01 Pu-238 P 2 S Lognormal-n NUREG/CR-7267 10.0 1.0 2.2E+04 Pu-239 P 2 S Lognormal-n NUREG/CR-7267 10.0 1.0 2.2E+04 Pu-240 P 2 S Lognormal-n NUREG/CR-7267 10.0 1.0 2.2E+04 Pu-241 P 2 S Lognormal-n NUREG/CR-7267 10.0 1.0 2.2E+04 Ra-226 P 2 S Lognormal-n NUREG/CR-7267 1.4 1.9 4.1E+00 Ra-228 P 2 S Lognormal-n NUREG/CR-7267 1.4 1.9 4.1E+00 Sb-125 P 2 S Lognormal-n NUREG/CR-7267 3.6 1.5 3.7E+01 Sr-90 P 2 S Lognormal-n NUREG/CR-7267 1.1 1.4 3.0E+00 Tc-99 P 2 D 4.2E+01 75th percentile Te-125m P 2 S Lognormal-n NUREG/CR-7267 5.0 0.4 1.5E+02 Th-228 P 2 S Lognormal-n NUREG/CR-7267 4.6 1.1 9.9E+01 Th-229 P 2 S Lognormal-n NUREG/CR-7267 4.6 1.1 9.9E+01 Th-230 P 2 S Lognormal-n NUREG/CR-7267 4.6 1.1 9.9E+01 Th-232 P 2 S Lognormal-n NUREG/CR-7267 4.6 1.1 9.9E+01 U-233 P 2 S Lognormal-n NUREG/CR-7267 0.0 2.5 1.0E+00 U-234 P 2 S Lognormal-n NUREG/CR-7267 0.0 2.5 1.0E+00 U-235 P 2 S Lognormal-n NUREG/CR-7267 0.0 2.5 1.0E+00 U-236 P 2 S Lognormal-n NUREG/CR-7267 0.0 2.5 1.0E+00 Bioaccumulation Factors for Crustacea/ Mollusks ((pCi/kg)/(pCi/L)) RESRAD default value for each radionuclide applied 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 17 RESRAD Default NR NR NR NR points for dose
Table 3 Notes:
a P = physical, B = behavioral, M = metabolic b 1 = high-priority parameter, 2 = medium-priority parameter, 3 = low-priority parameter c D = deterministic, S = stochastic NR = none recommended
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 Triangular: 1 = minimum, 2 = mode, 3 = maximum Uniform: 1 = minimum, 2 = maximum
Page 14 of 18 BHI Engineering ENG-OCS-008 DCGL Values for Soil - Industrial Use Scenario Rev. 0
Table 4: RESRAD Onsite Generated POM Doses and DCGL Values by ROC POM Dose DCGL ROC (mrem/y per pCi/g) (pCi/g)
Am-241 3.42E-02 7.31E+02 C-14 1.21E-02 2.07E+03 Cm-243 1.38E-01 1.81E+02 Cm-244 1.37E-02 1.82E+03 Co-60 3.15E+00 7.94E+00 Cs-137 6.99E-01 3.58E+01 Eu-152 1.42E+00 1.76E+01 Eu-154 1.53E+00 1.63E+01 Fe-55 2.98E-06 8.39E+06 H-3 4.98E-04 5.02E+04 Mn-54 7.34E-01 3.41E+01 Nb-94 2.01E+00 1.24E+01 Ni-63 3.23E-06 7.74E+06 Np-237 4.35E-01 5.75E+01 Pu-238 2.20E-02 1.14E+03 Pu-239 8.17E-02 3.06E+02 Pu-240 8.57E-02 2.92E+02 Pu-241 1.00E-03 2.50E+04 Sb-125 4.50E-01 5.56E+01 Sr-90 5.89E-03 4.24E+03 Tc-99 1.82E-03 1.37E+04
NOTE: The DCGL values in column 3 can be adjusted to meet a revised release criterion by multiplying by the ratio of the revised release criterion (mrem/y) to 25 mrem/y. If administrative reduction is desired, the DCGL values can be reduced by multiplying by the desired administrative reduction factor.
Page 15 of 18 BHI Engineering ENG-OCS-008 DCGL Values for Soil - Industrial Use Scenario Rev. 0
Appendix A
POM Doses by ROC Calculated Using the RESRAD-Onsite 7.2 Code
Page 16 of 18 BHI Engineering ENG-OCS-008 DCGL Values for Soil - Industrial Use Scenario Rev. 0
Am-241 Results:
RESRAD-ONSITE, Version 7.2 T<< Limit = 30 days 07/14/2023 12:58 Page 20 Probabilistic results summary : OCNGS Industrial Use_Soil_DCGL_Am241 File : C:\\RESRAD_FAMILY\\ONSITE\\7.2\\USERFILES\\RESRAD OC IU FILES\\AM241\\OC_IU_DCGL_AM241.RAD Peak of the mean dose (averaged over observations) at graphical times Repetition Time of peak mean dose Peak mean dose Years mrem/yr 1 0.000E+00 3.423E-02
C-14 Results:
RESRAD-ONSITE, Version 7.2 T<< Limit = 30 days 07/12/2023 14:35 Page 20 Probabilistic results summary : OCNGS Industrial Use_Soil_DCGL_C14 File : C:\\RESRAD_FAMILY\\ONSITE\\7.2\\USERFILES\\RESRAD OC IU FILES\\C14\\OC_IU_SOIL_DCGL_C-14.RAD Peak of the mean dose (averaged over observations) at graphical times Repetition Time of peak mean dose Peak mean dose Years mrem/yr 1 4.125E+01 1.210E-02
Cm-243 Results:
RESRAD-ONSITE, Version 7.2 T<< Limit = 30 days 07/12/2023 14:51 Page 20 Probabilistic results summary : OCNGS Industrial Use_Soil_DCGL_Cm243 File : C:\\RESRAD_FAMILY\\ONSITE\\7.2\\USERFILES\\RESRAD OC IU FILES\\CM243\\OC_IU_SOIL_DCGL_CM243.RAD Peak of the mean dose (averaged over observations) at graphical times Repetition Time of peak mean dose Peak mean dose Years mrem/yr 1 0.000E+00 1.379E-01
Cm-244 Results:
RESRAD-ONSITE, Version 7.2 T<< Limit = 30 days 07/12/2023 15:19 Page 20 Probabilistic results summary : OCNGS Industrial Use_Soil_DCGL_Cm244 File : C:\\RESRAD_FAMILY\\ONSITE\\7.2\\USERFILES\\RESRAD OC IU FILES\\CM244\\OC_IU_SOIL_DCGL_CM244.RAD Peak of the mean dose (averaged over observations) at graphical times Repetition Time of peak mean dose Peak mean dose Years mrem/yr 1 0.000E+00 1.371E-02
Co-60 Results:
RESRAD-ONSITE, Version 7.2 T<< Limit = 30 days 07/12/2023 15:31 Page 20 Probabilistic results summary : OC_IU_Soil_DCGL_Co60 File : C:\\RESRAD_FAMILY\\ONSITE\\7.2\\USERFILES\\RESRAD OC IU FILES\\CO60\\OC_IU_SOIL_DCGL_CO60.RAD Peak of the mean dose (averaged over observations) at graphical times Repetition Time of peak mean dose Peak mean dose Years mrem/yr 1 0.000E+00 3.148E+00
Cs-137 Results:
RESRAD-ONSITE, Version 7.2 T<< Limit = 30 days 07/12/2023 15:41 Page 20 Probabilistic results summary : OCNGS Industrial Use_Soil_DCGL_Cs137 File : C:\\RESRAD_FAMILY\\ONSITE\\7.2\\USERFILES\\RESRAD OC IU FILES\\CS137\\OC_IU_SOIL_DCGL_CS137.RAD Peak of the mean dose (averaged over observations) at graphical times Repetition Time of peak mean dose Peak mean dose Years mrem/yr 1 0.000E+00 6.992E-01
Eu-152 Results:
RESRAD-ONSITE, Version 7.2 T<< Limit = 30 days 07/12/2023 15:49 Page 20 Probabilistic results summary : OCNGS Industrial Use_Soil_DCGL_Eu152 File : C:\\RESRAD_FAMILY\\ONSITE\\7.2\\USERFILES\\RESRAD OC IU FILES\\EU152\\OC_IU_SOIL_DCGL_EU152.RAD Peak of the mean dose (averaged over observations) at graphical times Repetition Time of peak mean dose Peak mean dose Years mrem/yr 1 0.000E+00 1.417E+00
Eu-154 Results:
1RESRAD-ONSITE, Version 7.2 T<< Limit = 30 days 07/12/2023 15:58 Page 20 Probabilistic results summary : OCNGS Industrial Use_Soil_DCGL_Eu154 File : C:\\RESRAD_FAMILY\\ONSITE\\7.2\\USERFILES\\RESRAD OC IU FILES\\EU154\\OC_IU_SOIL_DCGL_EU154.RAD Peak of the mean dose (averaged over observations) at graphical times Repetition Time of peak mean dose Peak mean dose Years mrem/yr 1 0.000E+00 1.531E+00
Page 17 of 18 BHI Engineering ENG-OCS-008 DCGL Values for Soil - Industrial Use Scenario Rev. 0
Fe-55 Results:
RESRAD-ONSITE, Version 7.2 T<< Limit = 30 days 07/12/2023 16:07 Page 20 Probabilistic results summary : OCNGS Industrial Use_Soil_DCGL_Fe55 File : C:\\RESRAD_FAMILY\\ONSITE\\7.2\\USERFILES\\RESRAD OC IU FILES\\FE55\\OC_IU_SOIL_DCGL_FE55.RAD Peak of the mean dose (averaged over observations) at graphical times Repetition Time of peak mean dose Peak mean dose Years mrem/yr 1 0.000E+00 2.981E-06
RESRAD-ONSITE, Version 7.2 T<< Limit = 30 days 07/12/2023 16:19 Page 20 Probabilistic results summary : OCNGS Industrial Use_Soil_DCGL_H3 File : C:\\RESRAD_FAMILY\\ONSITE\\7.2\\USERFILES\\RESRAD OC IU FILES\\H3\\OC_IU_SOIL_DCGL_H3.RAD Peak of the mean dose (averaged over observations) at graphical times Repetition Time of peak mean dose Peak mean dose Years mrem/yr 1 0.000E+00 4.984E-04
Mn-54 Results:
RESRAD-ONSITE, Version 7.2 T<< Limit = 30 days 07/12/2023 16:28 Page 20 Probabilistic results summary : OCNGS Industrial Use_Soil_DCGL_Mn54 File : C:\\RESRAD_FAMILY\\ONSITE\\7.2\\USERFILES\\RESRAD OC IU FILES\\MN54\\OC_IU_DCGL_MN54.RAD Peak of the mean dose (averaged over observations) at graphical times Repetition Time of peak mean dose Peak mean dose Years mrem/yr 1 0.000E+00 7.335E-01
Nb-94 Results:
RESRAD-ONSITE, Version 7.2 T<< Limit = 30 days 07/18/2023 09:59 Page 20 Probabilistic results summary : OC_IU_DCGL_Nb94 File : C:\\RESRAD_FAMILY\\ONSITE\\7.2\\USERFILES\\NB94\\OC_IU_DCGL_NB94.RAD Peak of the mean dose (averaged over observations) at graphical times Repetition Time of peak mean dose Peak mean dose Years mrem/yr 1 0.000E+00 2.008E+00
Ni-63 Results:
RESRAD-ONSITE, Version 7.2 T<< Limit = 30 days 07/11/2023 14:33 Page 20 Probabilistic results summary : OC_IU_DCGL_Ni63 File : C:\\RESRAD_FAMILY\\ONSITE\\7.2\\USERFILES\\NI63\\OC_IU_DCGL_NI63.RAD Peak of the mean dose (averaged over observations) at graphical times Repetition Time of peak mean dose Peak mean dose Years mrem/yr 1 0.000E+00 3.225E-06
Np-237 Results:
RESRAD-ONSITE, Version 7.2 T<< Limit = 30 days 07/18/2023 14:02 Page 20 Probabilistic results summary : OC_IU_DCGL_Np237 File : C:\\RESRAD_FAMILY\\ONSITE\\7.2\\USERFILES\\NP237\\OC_IU_DCGL_NP237.RAD Peak of the mean dose (averaged over observations) at graphical times Repetition Time of peak mean dose Peak mean dose Years mrem/yr 1 0.000E+00 4.350E-01
Pu-238 Results:
RESRAD-ONSITE, Version 7.2 T<< Limit = 30 days 07/18/2023 10:33 Page 20 Probabilistic results summary : OC_IU_DCGL_Pu238 File : C:\\RESRAD_FAMILY\\ONSITE\\7.2\\USERFILES\\PU238\\OC_IU_DCGL_PU238.RAD Peak of the mean dose (averaged over observations) at graphical times Repetition Time of peak mean dose Peak mean dose Years mrem/yr 1 0.000E+00 2.202E-02
Pu-239 Results:
RESRAD-ONSITE, Version 7.2 T<< Limit = 30 days 01/17/2024 09:29 Page 20 Probabilistic results summary : OCNGS Industrial Use_DCGL_Pu240 r1 File : C:\\RESRAD_FAMILY\\ONSITE\\7.2\\USERFILES\\PU240\\OC_DCGL IU_PU240.RAD Peak of the mean dose (averaged over observations) at graphical times Repetition Time of peak mean dose Peak mean dose Years mrem/yr 1 1.000E+03 8.173E-02
Page 18 of 18 BHI Engineering ENG-OCS-008 DCGL Values for Soil - Industrial Use Scenario Rev. 0
Pu-240 Results:
RESRAD-ONSITE, Version 7.2 T<< Limit = 30 days 01/21/2024 09:55 Page 20 Probabilistic results summary : OC_IU_DCGL_Pu240_KL File : C:\\RESRAD_FAMILY\\ONSITE\\7.2\\USERFILES\\IU_SOIL\\PU240\\OC_IU_DCGL_PU240-KL.RAD Peak of the mean dose (averaged over observations) at graphical times Repetition Time of peak mean dose Peak mean dose Years mrem/yr 1 1.000E+03 8.570E-02
Pu-241 Results:
RESRAD-ONSITE, Version 7.2 T<< Limit = 30 days 07/18/2023 16:02 Page 20 Probabilistic results summary : OC_IU_DCGL_Pu241 File : C:\\RESRAD_FAMILY\\ONSITE\\7.2\\USERFILES\\PU241\\OC_IU_DCGL_PU241.RAD Peak of the mean dose (averaged over observations) at graphical times Repetition Time of peak mean dose Peak mean dose Years mrem/yr 1 5.380E+01 1.002E-03
Sb-125 Results:
RESRAD-ONSITE, Version 7.2 T<< Limit = 30 days 07/18/2023 10:09 Page 20 Probabilistic results summary : OC_IU_DCGL_Sb-125 File : C:\\RESRAD_FAMILY\\ONSITE\\7.2\\USERFILES\\SB125\\OC_IU_DCGL_SB125.RAD Peak of the mean dose (averaged over observations) at graphical times Repetition Time of peak mean dose Peak mean dose Years mrem/yr 1 0.000E+00 4.500E-01
Sr-90 Results:
RESRAD-ONSITE, Version 7.2 T<< Limit = 30 days 07/11/2023 16:33 Page 20 Probabilistic results summary : OC_IU_DCGL_Sr-90 File : C:\\RESRAD_FAMILY\\ONSITE\\7.2\\USERFILES\\SR90\\OC_IU_DCGL_SR90.RAD Peak of the mean dose (averaged over observations) at graphical times Repetition Time of peak mean dose Peak mean dose Years mrem/yr 1 0.000E+00 5.891E-03
Tc-99 Results:
RESRAD-ONSITE, Version 7.2 T<< Limit = 30 days 07/11/2023 16:45 Page 20 Probabilistic results summary : OC_IU_DCGL_Tc-99 File : C:\\RESRAD_FAMILY\\ONSITE\\7.2\\USERFILES\\TC99\\OC_IU_DCGL_TC99.RAD Peak of the mean dose (averaged over observations) at graphical times Repetition Time of peak mean dose Peak mean dose Years mrem/yr 1 1.701E+00 1.820E-03
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