ML25345A143
| ML25345A143 | |
| Person / Time | |
|---|---|
| Site: | Oyster Creek |
| Issue date: | 12/11/2025 |
| From: | Holtec Decommissioning International, Radiation Safety & Control Services |
| To: | Office of Nuclear Material Safety and Safeguards, Office of Nuclear Reactor Regulation |
| Shared Package | |
| ML25345A092 | List:
|
| References | |
| HDI 25-039 25-093, Rev 0 | |
| Download: ML25345A143 (0) | |
Text
BFM DCGLep Values Assuming the Residential Scenario Without Drinking Water Technical Support Document No.25-093 Revision 0 Prepared by: ______________________________________________________
Joseph Bisson, Technical Consultant Reviewed by:
William Parish, CHP, Sr. Health Physicist Approved by: ______________________________________________________
Christopher Messier, Sr. Director of Engineering and Strategic Development Radiation Safety & Control Services, Inc 93 Ledge Road, Seabrook, NH 03874 1-800-525-8339 (603) 778-2871 (Outside USA) www.radsafety.com Sept. 16, 2025
~ RSCS Rad1at1or Safety & Cortrol Services RSCS Radiation Safety & Control Services
RSCS TSD 25-093 Revision 0 2
BFM DCGLep Values Assuming Residential Scenario Without Drinking Water Contents 1
Introduction........................................................................................................................ 3 2
Input................................................................................................................................... 4 3
Results.............................................................................................................................. 18 4
References........................................................................................................................ 19
RSCS TSD 25-093 Revision 0 3
BFM DCGLep Values Assuming Residential Scenario Without Drinking Water 1 Introduction This report documents the development of Basement Fill Model (BFM) derived concentration guideline levels values for embedded pipes (DCGLep) applying the exposure pathways assumed for the Residential scenario, except the drinking water pathway. The Residential Scenario is considered a less likely but plausible exposure scenario for the OCNGS site.
The residential scenario assumes that the OCNGS site is transitioned to a residential neighborhood consisting of single-family houses with enough land area to support a backyard garden. The critical receptor is a hypothetic individual who resides on the site year-round (i.e., does not leave the site for offsite employment),
ingests garden vegetables grown in a backyard garden, and ingests aquatic food from the canal which is assumed to remain after license termination. The developer of the residential neighborhood is assumed to have connected each residential structure to the currently available municipal water supply making municipal water the source for all drinking water and household water use. However, the critical receptor is assumed to have installed a well to use untreated groundwater for the sole purpose of irrigating the backyard garden.
The area of the backyard garden is 650 ft2, which is equal to the average garden size in NJ. Shielding due to the newly developed asphalt neighborhood roads and driveways is ignored. Additionally, there is no meat-or milk-producing livestock onsite.
Five RESRAD exposure pathways are assumed open: external gamma, inhalation, plant ingestion, aquatic foods, and soil ingestion. Closed RESRAD exposure pathways are meat, milk, drinking water, and radon.
BFM Embedded Pipe (EP) Scenario: The BFM DCGLep values are based on a scenario which assumes an instantaneous release of residual internal surface radioactivity in embedded pipes to 1m of fill directly above the concrete floors of the 3 below-grade building foundations targeted to remain onsite at license termination: Reactor Building (RB), Turbine Building (TB), and Old Radwaste Building (ORB). The contaminated volumes (CV) from the 3 foundations are summed and the summed CV is modeled as the contaminated zone (CZ), which is assumed covered by site soil and located entirely in the saturated zone.
The walls and floors of the below-grade structures are assumed not to impede groundwater flow or migration of residual contamination. A full description of the conceptual model for the embedded pipe scenario, as well as the derivations of input for RESRAD-Onsite, is provided in ENG-OCS-015 [1]. The conceptual model for embedded pipes is shown in Figure 1.
The DCGL values developed in this document correspond to the NRC dose criteria established in 10CFR20.1403 (i.e., 25 mrem/y).
RSCS TSD 25-093 Revision 0 4
BFM DCGLep Values Assuming Residential Scenario Without Drinking Water Figure 1: Conceptual Configuration for Embedded Pipes 2 Input The area of the backyard garden = 650 ft2 (60.4 m2).
Input for the annual dietary fraction of aquatic food from the canal is equal to 0.61, the 75th percentile value from ENG-OCS-008 [2].
Irrigation rate (IRr) for the garden is determined using equation 3.4.2 in ANL/EVS/TM-14/4 [3]:
IRr = (ETr/Ce)-(1-Cr)(Pr)
Where:
ETr = estimated Evapotranspiration Rate (m/y) = 0.6 (see Figure 3.3.1 in ANL/EVS/TM-14/4)
Pr = the Precipitation Rate (m/y) = 1.4 (OCNGS site met data; see ENG-OCS-007 [4])
0.91m 1m
<---- well intake depth, 4.39m (N/A for IU) ----------------
SZ ---------------------------------------->
CZ = sum CV of all 3 bldg floor areas (100% in SZ); CV = 6355m3
<--------------------------------------------------- 90m (= LPAF) ---------------------------------------------------->
Conceptual Model for Embedded Pipe DCGLs
<------------------------cover, 7.81m (area-weighted average wall height)------------------------>
fill (site cap - sand) 6.9m UZ: assumed clean basement fill material (sand) (average depth to GW4.42m)
SZ: assumed clean basement fill material (sand) 1---------1 L
L I
RSCS TSD 25-093 Revision 0 5
BFM DCGLep Values Assuming Residential Scenario Without Drinking Water Ce = Evapotranspiration Coefficient distribution applied (NUREG-6697 [5], min value = 0.5, max value =
0.75)
Cr = the Runoff Coefficient = 0.2 (determined in ENG-OCS-007)
The maximum and minimum values for IRr are:
Variable Use of Min Ce Value Use of Max Ce Value ETr (m/y) 0.6 0.6 Pr (m/y) 1.4 1.4 Cr 0.2 0.2 Ce 0.5 0.75 IRr (m/y) 0.08
-0.32, assumed = 0 A uniform distribution with minimum and maximum value equal to 0.0 and 0.08, respectively, and a mean equal to 0.04 m/y was assigned as input for this parameter.
The well pumping rate and the contaminated fraction of plant food (fp) were adjusted for the size of the backyard garden.
fp = min (A/2000m2, 0.5), from NUREG/CR-7267 [6], Table C-13.
fp = 60.4m2/2000m2 = 0.03 Ground Water Use Component (general case)
Minimum Water Use, m3/y Maximum Water Use, m3/y Household (family of 4), m3/y 0
0 Livestock, m3/y 0
0 Irrigation Water, m3/y = fp x Ir x 60.4 0
0.146 Contaminated fraction (fp) 0.03 0.03 Irrigation Rate (IRr), m/y 0.0 0.08 Drinking Water, m3/y 0
0 Total, m3/y 0
0.146 The input defining the CZ taken from ENG-OCS-015):
Contaminated volume (6355.3 m3) forming the CZ:
CZ thickness = 1m CZ area = 6355.3 m2 Length parallel to aquifer flow = 90m Fraction CZ in saturated zone = 1.0 Cover thickness = 7.81m A site-specific suite of potential radionuclides-of-concern (ROCs) has been identified for the OCNGS site [7]
and is listed in Table 1. RESRAD-Onsite 7.2 automatically accounts for progeny radionuclides with input for several of the ROCs. Progeny radionuclides are also listed in Table 1.
RSCS TSD 25-093 Revision 0 6
BFM DCGLep Values Assuming Residential Scenario Without Drinking Water Table 1: Radionuclides of Concern Identified for the OCNGS Site ROC Progeny ROC Progeny Am-241 Np-237, Th-229, U-233 Nb-94 C-14 Ni-63 Cm-243 Ac-227, Am-243, Pa-231, Pu-239, U-235 Np-237 Th-229, U-233 Cm-244 Pu-240, Ra-228, Th-228, Th-232, U-236 Pu-238 Pb-210, Po-210, Ra-226, Th-230, U-234 Co-60 Pu-239 Ac-227, Pa-231, U-235 Cs-137 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 Tc-99 Mn-54 Input values and their basis for all RESRAD-ONSITE parameters are provided in Table 2.
Table 2: Input Values for RESRAD-Onsite Parameters Values and Bases for RESRAD-Onsite Parameters for DCGL Calculations BFM Embedded Pipe - Residential Scenario Exposure Pathways Without Drinking Water Parameter (unit)
Type Priority Treatment Value/Distribution Basis Distribution's Statistical Parameters Median/
Mean 1
2 3
4 Soil Concentrations Basic radiation dose limit (mrem/y)
P 3
D 25 10 CFR 20.1402 Initial principal radionuclide (pCi/g)
P 2
D 1
Unit Value Distribution coefficients (sand soil type assigned to contaminated 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
2.69E+02 25th percentile value 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
6.13E+00 25th percentile value Cm-243 P
1 D
S 5.74E+02 (CZ)
Truncated lognormal-n (SZ) 25th percentile value ANL/EVS/TM-14/4 8.13 2.64 0.001 0.999 3400 Cm-244 P
1 D
S 5.74E+02 (CZ)
Truncated lognormal-n (SZ) 25th percentile value ANL/EVS/TM-14/4 8.13 2.64 0.001 0.999 3400 Co-60 P
1 D
3.71E+01 25th percentile value Cs-137 P
1 D
S 1.58E+02 (CZ)
Truncated lognormal-n (SZ) 25th percentile value ANL/EVS/TM-14/4 6.27 1.79 0.001 0.999 530 Eu-152 P
1 D
6.40E+01 25th percentile value Eu-154 P
1 D
6.40E+01 25th percentile value
RSCS TSD 25-093 Revision 0 7
BFM DCGLep Values Assuming Residential Scenario Without Drinking Water Values and Bases for RESRAD-Onsite Parameters for DCGL Calculations BFM Embedded Pipe - Residential Scenario Exposure Pathways Without Drinking Water Parameter (unit)
Type Priority Treatment Value/Distribution Basis Distribution's Statistical Parameters Median/
Mean 1
2 3
4 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
S 4.30E-03 (CZ)
Truncated lognormal-n (SZ) 25th percentile value NUREG/CR-7267
-2.81 0.5 0.001 0.999 0.06 Mn-54 P
1 D
1.66E+02 25th percentile value Nb-94 P
1 D
S 5.86E+02 (CZ)
Truncated lognormal-n (SZ) 25th percentile value NUREG/CR-7267 7.31 1.39 0.001 0.999 1500 Ni-63 P
1 D
2.76E+01 25th percentile value Np-237 P
1 D
5.49E+00 25th percentile value 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 D
1.56E+02 25th percentile value Pu-239 P
1 D
1.56E+02 25th percentile value Pu-240 P
1 D
1.56E+02 25th percentile value Pu-241 P
1 D
S 1.56E+02 (CZ)
Truncated lognormal-n (SZ) 25th percentile value ANL/EVS/TM-14/4 5.99 1.39 0.001 0.999 400 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
S 5.08E+00 (CZ)
Truncated lognormal-n (SZ) 25th percentile value ANL/EVS/TM-14/4 2.83 1.79 0.001 0.999 17 Sr-90 P
1 D
6.58E+00 25th percentile value Tc-99 P
1 D
S 1.90E-02 (CZ)
Truncated lognormal-n (SZ) 25th percentile value ANL/EVS/TM-14/4
-3.22 1.1 0.001 0.999 0.04 Te-125m P
1 D
S 6.28E+01 (CZ)
Truncated lognormal-n (SZ) 25th percentile value ANL/EVS/TM-14/4 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
RSCS TSD 25-093 Revision 0 8
BFM DCGLep Values Assuming Residential Scenario Without Drinking Water Values and Bases for RESRAD-Onsite Parameters for DCGL Calculations BFM Embedded Pipe - Residential Scenario Exposure Pathways Without Drinking Water Parameter (unit)
Type Priority Treatment Value/Distribution Basis Distribution's Statistical Parameters Median/
Mean 1
2 3
4 Initial concentration of radionuclides present in groundwater (pCi/l)
P 3
D 0
Ground water uncontaminated NR NR NR NR Calculation Times Time since placement of material (y)
P 3
D 0
NR NR NR NR Time for calculations (y)
P 3
D 0, 1, 3, 10, 30, 100, 300, 1000 RESRAD Default NR NR NR NR Contaminated Zone Cover depth (m)
P 2
D 7.81 Area-weighted value for bldg wall heights.
NR NR NR NR Cover density (g/cm3)
P 2
S Bounded Normal Site soil type = sand (OCNGS Hydrogeologic Investigation Report).
Input for density of fill material = NUREG/CR-7267 density distribution for site soil type - sand.
1.5105 0.159 1.019 2.002 Cover erosion rate (m/y)
P 2
D 6E-04 Assumed final site grade is level. Input for erosion rate
= NUREG/CR-7267 erosion rate for site with shallow slope (i.e., relatively level)
Area of contaminated zone (m2)
P 2
D 6355.3 Combined CV from RB, TB, and ORB.
Thickness of contaminated zone (m)
P 2
D 1.0 Scenario assumption Length parallel to aquifer flow (m)
P 2
D 90 Diameter of CV Does the initial contamination penetrate the water table?
Yes CV below the average depth to groundwater Contaminated fraction below the water table 1.0 Entire CV in SZ Cover and Contaminated Zone Hydrological Data Density of contaminated zone (g/cm3)
P 1
D S
Bounded Normal (all other ROCs) 75th percentile value NUREG/CR-7267 distribution for site soil type - sand.
1.5105 0.159 1.019 2.002 1.5105 Contaminated zone erosion rate (m/y)
P 2
D 6E-04 NUREG/CR-7267; assumed erosion rate for site with shallow slope (i.e.,
relatively level)
Contaminated zone total porosity P
2 D
S 3.90E-01 (H-3)
Bounded Normal (all other ROCs) 25th percentile value NUREG/CR-7267 distribution for site soil type -sand 0.43 0.06 0.2446 0.6154 0.43 Contaminated zone field capacity P
3 D
0.18 Value based on site-specific soil type (sand); calculated using equation in NUREG/CR-7267
RSCS TSD 25-093 Revision 0 9
BFM DCGLep Values Assuming Residential Scenario Without Drinking Water Values and Bases for RESRAD-Onsite Parameters for DCGL Calculations BFM Embedded Pipe - Residential Scenario Exposure Pathways Without Drinking Water Parameter (unit)
Type Priority Treatment Value/Distribution Basis Distribution's Statistical Parameters Median/
Mean 1
2 3
4 Contaminated zone hydraulic conductivity (m/y)
P 2
D 2741 2017 Hydrogeologic Investigation Report Contaminated zone b parameter P
2 S
Bounded Log Normal n NUREG/CR-7267 distribution for site soil type - sand
- 0.0253 0.216 0.501 1.90 0.975 Humidity in air (g/m3)
P 3
D 6.6 Figure 1 in Regional and Site-Specific Absolute Humidity Data for Use in Tritium Dose Calculations Evapotranspiration coefficient P
2 S
Uniform NUREG/CR-7267 0.5 0.75 NR NR 0.625 Average annual wind speed (m/s)
P 2
D 3.13 Internet search:
https://www.windfinder.c om/windstatistics/oyster_c reek_barnegat_bay Precipitation (m/y)
P 2
D 1.4 Annual Report on the Meteorological Program at Oyster Creek Generating Station - average annual precipitation for 2015 through 2020 Irrigation (m/y)
B 3
D 6.00E-02 (Am-241, Cm-243/244, Cs-137, Fe-55, H-3, Nb-94, Ni-63, Pu-238/239/240/241, Tc-99)
Uniform (C-14, Co-60, Eu-152/154, Mn-54, Np-237, Sb-125, Sr-90) 75th percentile value Distribution determined using methodology described in Data Collection Handbook and NUREG/CR-6697.
0 0.08 0.04 Irrigation mode B
3 D
Overhead Overhead irrigation is common practice for crops in U.S.
Runoff coefficient P
2 D
0.2 Value determined using methodology described in Data Collection Handbook and NUREG/CR-7267 Watershed area for nearby stream or pond (m2)
P 3
D 1.01E+08 NJ-GeoWeb (NJDEP BGIS)
Accuracy for water/soil computations 3
D 1.00E-03 RESRAD Default Saturated Zone Hydrological Data Density of saturated zone (g/cm3)
P 1
S Bounded Normal NUREG/CR-7267 Table C-1, distribution for site soil type -sand 1.5105 0.159 1.019 2.002 1.5105 Saturated zone total porosity P
1 S
Bounded Normal NUREG/CR-7267 distribution for site soil type -sand 0.43 0.06 0.2446 0.6154 0.43 Saturated zone effective porosity P
1 D
0.25 OCNGS Hydrogeologic Investigation Report
RSCS TSD 25-093 Revision 0 10 BFM DCGLep Values Assuming Residential Scenario Without Drinking Water Values and Bases for RESRAD-Onsite Parameters for DCGL Calculations BFM Embedded Pipe - Residential Scenario Exposure Pathways Without Drinking Water Parameter (unit)
Type Priority Treatment Value/Distribution Basis Distribution's Statistical Parameters Median/
Mean 1
2 3
4 Saturated zone field capacity P
3 D
0.18 Value based on site-specific soil type (sand); calculated using equation in NUREG/CR-7267 Saturated zone hydraulic conductivity (m/y)
P 1
D 2741 OCNGS Hydrogeologic Investigation Report Saturated zone hydraulic gradient P
2 D
Uniform (all other ROCs) 25th percentile value OCNGS Hydrogeologic Investigation Report 0.01 0.04 0.025 Saturated zone b
parameter P
2 Input not required Water table drop rate (m/y)
P 3
D 0
CZ in SZ Well pump intake depth (m
below water table)
P 2
D 4.39 Distance from the water table to the lower boundary of contamination in the aquifer at the down gradient edge of the CZ.
Model:
Nondispersion (ND) or Mass-Balance (MB)
P 3
D ND ND model recommended for contaminant areas
>1,000 m2 Well pumping rate (m3/y)
P 2
D 0.146 Maximum irrigation value based on general case parameter values.
Unsaturated Zone Hydrological Data Number of unsaturated zone strata P
3 D
0 CZ directly under cover material Occupancy Inhalation rate (m3/y)
B 3
D 8400 NUREG/CR-7267 Mass loading for inhalation (g/m3)
P 2
S Continuous linear NUREG/CR-7267 2.3E-5 Exposure duration B
3 D
30 RESRAD Default Indoor dust filtration factor P
2 S
Uniform NUREG/CR-7267 0.15 0.95 0.55 Shielding
- factor, external gamma P
2 S
Bounded lognormal-n NUREG/CR-7267
-1.3 0.59 0.044 1
0.2725 Fraction of time spent indoors B
3 D
0.6571 NUREG/CR-5512, Vol. 3 Fraction of time spent outdoors B
3 D
0.1181 NUREG/CR-5512, Vol.
3 (outdoors + gardening)
Shape factor
- flag, external gamma P
3 D
Circular RESRAD Default - Circular contaminated zone assumed Ingestion, Dietary
- Fruits, vegetables, grain consumption (kg/y)
B 2
D 112 NUREG/CR-5512, Vol.
3 (other vegetables + fruits +
grain)
Leafy vegetable consumption (kg/y)
B 3
D 21.4 NUREG/CR-5512, Vol. 3
RSCS TSD 25-093 Revision 0 11 BFM DCGLep Values Assuming Residential Scenario Without Drinking Water Values and Bases for RESRAD-Onsite Parameters for DCGL Calculations BFM Embedded Pipe - Residential Scenario Exposure Pathways Without Drinking Water Parameter (unit)
Type Priority Treatment Value/Distribution Basis Distribution's Statistical Parameters Median/
Mean 1
2 3
4 Milk consumption (L/y)
B 2
D 233 NUREG/CR-5512, Vol. 3 Meat and poultry consumption (kg/y)
B 3
D 65.1 NUREG/CR5512, Vol.
3 (beef + poultry)
Fish consumption (kg/y)
B 3
D 20.6 NUREG/CR-5512, Vol. 3 Other seafood consumption (kg/y)
B 3
D 0.9 RESRAD Default Soil ingestion rate (g/yr)
B 2
D 18.26 NUREG/CR-5512, Vol. 3 Drinking water intake (L/y)
B 2
D 0
Municipal water supply Contamination fraction of drinking water P
3 D
0 Input not used - pathway closed Contamination fraction of household water P
3 NA Contamination fraction of livestock water P
3 D
0 No livestock on site Contamination fraction of irrigation water P
3 D
1 GW used for irrigation Contamination fraction of aquatic food P
2 D
0.61 Same fraction that was assigned to IU critical receptor Contamination fraction of plant food P
3 D
0.03 Based on size of garden Contamination fraction of meat P
3 D
0 No livestock Contamination fraction of milk P
3 D
0 No livestock Ingestion, Non-Dietary Livestock fodder intake for meat (kg/d)
M 3
D 27.1 NUREG/CR5512, beef cattle + poultry + layer hen Livestock fodder intake for milk (kg/d)
M 3
D 63.2 NUREG/CR5512, forage +
grain + hay Livestock water intake for meat (L/d)
M 3
D 50.6 NUREG/CR5512, beef cattle + poultry + layer hen Livestock water intake for milk (L/d)
M 3
D 60 NUREG/CR5512 Livestock soil intake (kg/d)
M 3
D 0.5 RESRAD Default Mass loading for foliar deposition (g/m3)
P 3
D 4.00E-04 NUREG/CR-5512, gardening Depth of soil mixing layer (m)
P 2
S Triangular NUREG/CR-7267 0
0.15 0.6 0.23 Depth of roots (m)
P 1
S Uniform NUREG/CR-7267 0.3 4
1.85 Drinking water fraction from ground water P
3 D
1 RESRAD Default - all water assumed to be supplied from groundwater
RSCS TSD 25-093 Revision 0 12 BFM DCGLep Values Assuming Residential Scenario Without Drinking Water Values and Bases for RESRAD-Onsite Parameters for DCGL Calculations BFM Embedded Pipe - Residential Scenario Exposure Pathways Without Drinking Water Parameter (unit)
Type Priority Treatment Value/Distribution Basis Distribution's Statistical Parameters Median/
Mean 1
2 3
4 Household water fraction from ground water (if used)
P 3
NA Livestock water fraction from groundwater P
3 D
0 No livestock Irrigation fraction from groundwater P
3 D
1 GW used to irrigate garden Wet weight crop yield for Non-Leafy (kg/m2)
P 2
D S
1.27E+00 (Fe-55, Nb-94, Pu-238)
Truncated lognormal-n (all other ROCs) 25th percentile value NUREG/CR-7267 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 Wet weight crop yield for Fodder (kg/m2)
P 3
D 1.8868 NUREG/CR-5512 Growing Season for Non-Leafy (y)
P 3
D 0.246 NUREG/CR-5512 Growing Season for Leafy (y)
P 3
D 0.123 NUREG/CR-5512 Growing Season for Fodder (y)
P 3
D 0.082 NUREG/CR-5512 Translocation Factor for Non-Leafy P
3 D
0.1 NUREG/CR-5512 Translocation Factor for Leafy P
3 D
1 NUREG/CR-5512 Translocation Factor for Fodder P
3 D
1 NUREG/CR-5512 Weathering Removal Constant for Vegetation (1/y)
P 2
D S
2.15E+01 (Am-241, Cm-243, Fe-55, Nb-94, Pu-238/239/240)
Triangular (all other ROCs) 25th percentile value NUREG/CR-7267 5.1 18 84 33 Wet Foliar Interception Fraction for Non-Leafy P
3 D
0.35 NUREG/CR-5512 Wet Foliar Interception Fraction for Leafy P
2 D
S 7.00E-01 (Fe-55, Nb-94, Pu-238/239/240)
Triangular (all other ROCs)
NUREG/CR-7267 0.06 0.67 0.95 0.58 Wet Foliar Interception Fraction for Fodder P
3 D
0.35 NUREG/CR-5512 Dry Foliar Interception Fraction for Non-Leafy P
3 D
0.35 NUREG/CR-5512 Dry Foliar Interception Fraction for Leafy P
3 D
0.35 NUREG/CR-5512 Dry Foliar Interception Fraction for Fodder P
3 D
0.35 NUREG/CR-5512 Storage times of contaminated foodstuffs (days):
RSCS TSD 25-093 Revision 0 13 BFM DCGLep Values Assuming Residential Scenario Without Drinking Water Values and Bases for RESRAD-Onsite Parameters for DCGL Calculations BFM Embedded Pipe - Residential Scenario Exposure Pathways Without Drinking Water Parameter (unit)
Type Priority Treatment Value/Distribution Basis Distribution's Statistical Parameters Median/
Mean 1
2 3
4
- Fruits, non-leafy vegetables, and grain B
3 D
14 NUREG/CR-5512 Leafy vegetables B
3 D
1 NUREG/CR-5512 Milk B
3 D
1 NUREG/CR-5512 Meat and poultry B
3 D
20 NUREG/CR-5512 (holdup period for beef)
Fish B
3 D
7 RESRAD Default Crustacea and mollusks B
3 D
7 RESRAD Default Well water B
3 D
1 RESRAD Default Surface water B
3 D
1 RESRAD Default Livestock fodder B
3 D
45 RESRAD Default Special Radionuclides (C-14)
C-12 concentration in water (g/cm3)
P 3
D 2.00E-05 RESRAD Default C-12 concentration in contaminated soil (g/g)
P 3
D 3.00E-02 RESRAD Default Fraction of vegetation carbon from soil P
3 D
2.00E-02 RESRAD Default Fraction of vegetation carbon from air P
3 D
9.80E-01 RESRAD Default C-14 evasion layer thickness in soil (m)
P 2
S Triangular NUREG/CR-7267 0.2 0.3 0.6 0.3 C-14 evasion flux rate from soil (1/s)
P 3
D 7.00E-07 RESRAD Default C-12 evasion flux rate from soil (1/s)
P 3
D 1.00E-10 RESRAD Default Fraction of grain in beef cattle feed B
3 D
0.2500 NUREG/CR-7267 Fraction of grain in milk cow feed B
3 D
0.1000 NUREG/CR-7267 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)
Ac-227 P
1 S
Truncated lognormal-n NUREG/CR-7267
-6.9 1.1 0.001 0.999 1.0E-03 Am-241 P
1 S
Truncated lognormal-n NUREG/CR-7267
-6.9 0.9 0.001 0.999 1.0E-03 Am-243 P
1 S
Truncated lognormal-n NUREG/CR-7267
-6.9 0.9 0.001 0.999 1.0E-03 C-14 P
1 S
Truncated lognormal-n NUREG/CR-7267
-0.4 0.9 0.001 0.999 6.7E-01 Cm-243 P
1 S
Truncated lognormal-n NUREG/CR-7267
-6.9 0.9 0.001 0.999 1.0E-03 Cm-244 P
1 S
Truncated lognormal-n NUREG/CR-7267
-6.9 0.9 0.001 0.999 1.0E-03 Co-60 P
1 S
Truncated lognormal-n NUREG/CR-7267
-2.5 0.9 0.001 0.999 8.0E-02 Cs-137 P
1 S
Truncated lognormal-n NUREG/CR-7267
-3.2 1.0 0.001 0.999 4.0E-02 Eu-152 P
1 S
Truncated lognormal-n NUREG/CR-7267
-6.2 1.1 0.001 0.999 2.0E-03 Eu-154 P
1 S
Truncated lognormal-n NUREG/CR-7267
-6.2 1.1 0.001 0.999 2.0E-03 Fe-55 P
1 S
Truncated lognormal-n NUREG/CR-7267
-6.9 0.9 0.001 0.999 1.0E-03
RSCS TSD 25-093 Revision 0 14 BFM DCGLep Values Assuming Residential Scenario Without Drinking Water Values and Bases for RESRAD-Onsite Parameters for DCGL Calculations BFM Embedded Pipe - Residential Scenario Exposure Pathways Without Drinking Water Parameter (unit)
Type Priority Treatment Value/Distribution Basis Distribution's Statistical Parameters Median/
Mean 1
2 3
4 Gd-152 P
1 S
Truncated lognormal-n NUREG/CR-7267
-6.2 1.1 0.001 0.999 2.0E-03 H-3 P
1 S
Truncated lognormal-n NUREG/CR-7267 1.6 1.1 0.001 0.999 5.0E+00 Mn-54 P
1 S
Truncated lognormal-n NUREG/CR-7267
-1.2 0.9 0.001 0.999 3.0E-01 Nb-94 P
1 S
Truncated lognormal-n NUREG/CR-7267
-4.6 1.0 0.001 0.999 2.0E-03 Ni-63 P
1 S
Truncated lognormal-n NUREG/CR-7267
-3.0 0.9 0.001 0.999 5.0E-02 Np-237 P
1 S
Truncated lognormal-n NUREG/CR-7267
-3.9 0.9 0.001 0.999 2.0E-02 Pa-231 P
1 S
Truncated lognormal-n NUREG/CR-7267
-4.6 1.1 0.001 0.999 1.0E-02 Pb-210 P
1 S
Truncated lognormal-n NUREG/CR-7267
-5.5 0.9 0.001 0.999 4.0E-03 Po-210 P
1 S
Truncated lognormal-n NUREG/CR-7267
-6.9 0.9 0.001 0.999 1.0E-03 Pu-238 P
1 S
Truncated lognormal-n NUREG/CR-7267
-6.9 0.9 0.001 0.999 1.0E-03 Pu-239 P
1 S
Truncated lognormal-n NUREG/CR-7267
-6.9 0.9 0.001 0.999 1.0E-03 Pu-240 P
1 S
Truncated lognormal-n NUREG/CR-7267
-6.9 0.9 0.001 0.999 1.0E-03 Pu-241 P
1 D
1.80E-03 75th percentile value Ra-226 P
1 S
Truncated lognormal-n NUREG/CR-7267
-3.2 0.9 0.001 0.999 4.0E-02 Ra-228 P
1 S
Truncated lognormal-n NUREG/CR-7267
-3.2 0.9 0.001 0.999 4.0E-02 Sb-125 P
1 S
Truncated lognormal-n NUREG/CR-7267
-4.6 1.0 0.001 0.999 1.0E-02 Sr-90 P
1 S
Truncated lognormal-n NUREG/CR-7267
-1.2 1.0 0.001 0.999 3.0E-01 Tc-99 P
1 D
9.07E+00 75th percentile value Te-125m P
1 S
Truncated lognormal-n NUREG/CR-7267
-3.1 1.0 0.001 0.999 1.0E-01 Th-228 P
1 S
Truncated lognormal-n NUREG/CR-7267
-6.9 0.9 0.001 0.999 1.0E-03 Th-229 P
1 S
Truncated lognormal-n NUREG/CR-7267
-6.9 0.9 0.001 0.999 1.0E-03 Th-230 P
1 S
Truncated lognormal-n NUREG/CR-7267
-6.9 0.9 0.001 0.999 1.0E-03 Th-232 P
1 S
Truncated lognormal-n NUREG/CR-7267
-6.9 0.9 0.001 0.999 1.0E-03 U-233 P
1 S
Truncated lognormal-n NUREG/CR-7267
-6.2 0.9 0.001 0.999 2.0E-03 U-234 P
1 S
Truncated lognormal-n NUREG/CR-7267
-6.2 0.9 0.001 0.999 2.0E-03 U-235 P
1 S
Truncated lognormal-n NUREG/CR-7267
-6.2 0.9 0.001 0.999 2.0E-03 U-236 P
1 S
Truncated lognormal-n NUREG/CR-7267
-6.2 0.9 0.001 0.999 2.0E-03 Meat Transfer Factors (pCi/kg)/(pCi/d) NOTE: Input not used - meat ingestion pathway is closed Ac-227 P
2 S
Truncated lognormal-n NUREG/CR-7267
-10.82 1.0 0.001 0.999 2.0E-05 Am-241 P
2 S
Truncated lognormal-n NUREG/CR-7267
-9.90 0.4 0.001 0.999 5.0E-05 Am-243 P
2 S
Truncated lognormal-n NUREG/CR-7267
-9.90 0.4 0.001 0.999 5.0E-05 C-14 P
2 S
Truncated lognormal-n NUREG/CR-7267
-3.47 1.0 0.001 0.999 3.1E-02 Cm-243 P
2 S
Truncated lognormal-n NUREG/CR-7267
-10.82 1.0 0.001 0.999 2.0E-05 Cm-244 P
2 S
Truncated lognormal-n NUREG/CR-7267
-10.82 1.0 0.001 0.999 2.0E-05 Co-60 P
2 S
Truncated lognormal-n NUREG/CR-7267
-7.75 0.8 0.001 0.999 4.3E-04 Cs-137 P
2 D
4.01E-02 75th percentile value Eu-152 P
2 S
Truncated lognormal-n NUREG/CR-7267
-6.21 1.0 0.001 0.999 2.0E-03 Eu-154 P
2 S
Truncated lognormal-n NUREG/CR-7267
-6.21 1.0 0.001 0.999 2.0E-03 Fe-55 P
2 D
1.83E-02 75th percentile value Gd-152 P
2 S
Truncated lognormal-n NUREG/CR-7267
-6.21 1.0 0.001 0.999 2.0E-03 H-3 P
2 S
Truncated lognormal-n NUREG/CR-7267
-4.42 1.0 0.001 0.999 1.2E-02 Mn-54 P
2 S
Truncated lognormal-n NUREG/CR-7267
-6.91 0.7 0.001 0.999 1.0E-03
RSCS TSD 25-093 Revision 0 15 BFM DCGLep Values Assuming Residential Scenario Without Drinking Water Values and Bases for RESRAD-Onsite Parameters for DCGL Calculations BFM Embedded Pipe - Residential Scenario Exposure Pathways Without Drinking Water Parameter (unit)
Type Priority Treatment Value/Distribution Basis Distribution's Statistical Parameters Median/
Mean 1
2 3
4 Nb-94 P
2 S
Truncated lognormal-n NUREG/CR-7267
-13.82 0.9 0.001 0.999 1.0E-06 Ni-63 P
2 S
Truncated lognormal-n NUREG/CR-7267
-5.3 0.9 0.001 0.999 5.0E-03 Np-237 P
2 S
Truncated lognormal-n NUREG/CR-7267
-6.91 0.7 0.001 0.999 1.0E-03 Pa-231 P
2 S
Truncated lognormal-n NUREG/CR-7267
-12.21 1.0 0.001 0.999 5.0E-06 Pb-210 P
2 S
Truncated lognormal-n NUREG/CR-7267
-7.26 0.9 0.001 0.999 7.0E-04 Po-210 P
2 S
Truncated lognormal-n NUREG/CR-7267
-5.3 0.7 0.001 0.999 5.0E-03 Pu-238 P
2 S
Truncated lognormal-n NUREG/CR-7267
-13.72 3.2 0.001 0.999 1.1E-06 Pu-239 P
2 S
Truncated lognormal-n NUREG/CR-7267
-13.72 3.2 0.001 0.999 1.1E-06 Pu-240 P
2 S
Truncated lognormal-n NUREG/CR-7267
-13.72 3.2 0.001 0.999 1.1E-06 Pu-241 P
2 S
Truncated lognormal-n NUREG/CR-7267
-13.72 3.2 0.001 0.999 1.1E-06 Ra-226 P
2 S
Truncated lognormal-n NUREG/CR-7267
-6.91 0.7 0.001 0.999 1.0E-03 Ra-228 P
2 S
Truncated lognormal-n NUREG/CR-7267
-6.91 0.7 0.001 0.999 1.0E-03 Sb-125 P
2 S
Truncated lognormal-n NUREG/CR-7267
-6.91 0.9 0.001 0.999 1.0E-03 Sr-90 P
2 S
Truncated lognormal-n NUREG/CR-7267
-6.65 1.1 0.001 0.999 1.3E-03 Tc-99 P
2 S
Truncated lognormal-n NUREG/CR-7267
-9.21 0.7 0.001 0.999 1.0E-04 Te-125m P
2 S
Truncated lognormal-n NUREG/CR-7267
-4.96 0.9 0.001 0.999 7.0E-03 Th-228 P
2 S
Truncated lognormal-n NUREG/CR-7267
-8.38 1.1 0.001 0.999 2.3E-04 Th-229 P
2 S
Truncated lognormal-n NUREG/CR-7267
-8.38 1.1 0.001 0.999 2.3E-04 Th-230 P
2 S
Truncated lognormal-n NUREG/CR-7267
-8.38 1.1 0.001 0.999 2.3E-04 Th-232 P
2 S
Truncated lognormal-n NUREG/CR-7267
-8.38 1.1 0.001 0.999 2.3E-04 U-233 P
2 S
Truncated lognormal-n NUREG/CR-7267
-7.85 0.5 0.001 0.999 3.9E-04 U-234 P
2 S
Truncated lognormal-n NUREG/CR-7267
-7.85 0.5 0.001 0.999 3.9E-04 U-235 P
2 S
Truncated lognormal-n NUREG/CR-7267
-7.85 0.5 0.001 0.999 3.9E-04 U-236 P
2 S
Truncated lognormal-n NUREG/CR-7267
-7.85 0.5 0.001 0.999 3.9E-04 Milk Transfer Factors (pCi/L)/(pCi/d) NOTE: Input not used - milk ingestion pathway is closed Ac-227 P
2 S
Truncated lognormal-n NUREG/CR-7267
-13.12 0.9 0.001 0.999 2.0E-06 Am-241 P
2 S
Truncated lognormal-n NUREG/CR-7267
-13.12 0.7 0.001 0.999 2.0E-06 Am-243 P
2 S
Truncated lognormal-n NUREG/CR-7267
-13.12 0.7 0.001 0.999 2.0E-06 C-14 P
2 S
Truncated lognormal-n NUREG/CR-7267
-4.4 0.9 0.001 0.999 1.2E-02 Cm-243 P
2 S
Truncated lognormal-n NUREG/CR-7267
-13.12 0.9 0.001 0.999 2.0E-06 Cm-244 P
2 S
Truncated lognormal-n NUREG/CR-7267
-13.12 0.9 0.001 0.999 2.0E-06 Co-60 P
2 S
Truncated lognormal-n NUREG/CR-7267
-9.12 0.7 0.001 0.999 1.1E-04 Cs-137 P
2 D
7.37E-03 75th percentile value Eu-152 P
2 S
Truncated lognormal-n NUREG/CR-7267
-9.72 0.9 0.001 0.999 6.0E-05 Eu-154 P
2 S
Truncated lognormal-n NUREG/CR-7267
-9.72 0.9 0.001 0.999 6.0E-05 Fe-55 P
2 S
Truncated lognormal-n NUREG/CR-7267
-10.26 0.7 0.001 0.999 3.5E-05 Gd-152 P
2 S
Truncated lognormal-n NUREG/CR-7267
-9.72 0.9 0.001 0.999 6.0E-05 H-3 P
2 S
Truncated lognormal-n NUREG/CR-7267
-4.6 0.9 0.001 0.999 1.0E-02 Mn-54 P
2 S
Truncated lognormal-n NUREG/CR-7267
-10,1 1.6 0.001 0.999 4.1E-05 Nb-94 P
2 S
Truncated lognormal-n NUREG/CR-7267
-13.12 0.7 0.001 0.999 2.0E-06 Ni-63 P
2 D
3.21E-02 75th percentile value Np-237 P
2 S
Truncated lognormal-n NUREG/CR-7267
-11.51 0.7 0.001 0.999 1.0E-05
RSCS TSD 25-093 Revision 0 16 BFM DCGLep Values Assuming Residential Scenario Without Drinking Water Values and Bases for RESRAD-Onsite Parameters for DCGL Calculations BFM Embedded Pipe - Residential Scenario Exposure Pathways Without Drinking Water Parameter (unit)
Type Priority Treatment Value/Distribution Basis Distribution's Statistical Parameters Median/
Mean 1
2 3
4 Pa-231 P
2 S
Truncated lognormal-n NUREG/CR-7267
-12.21 0.9 0.001 0.999 5.0E-06 Pb-210 P
2 S
Truncated lognormal-n NUREG/CR-7267
-8.11 0.9 0.001 0.999 3.0E-04 Po-210 P
2 S
Truncated lognormal-n NUREG/CR-7267
-8.47 0.6 0.001 0.999 2.1E-04 Pu-238 P
2 S
Truncated lognormal-n NUREG/CR-7267
-13.82 0.5 0.001 0.999 1.0E-06 Pu-239 P
2 S
Truncated lognormal-n NUREG/CR-7267
-13.82 0.5 0.001 0.999 1.0E-06 Pu-240 P
2 S
Truncated lognormal-n NUREG/CR-7267
-13.82 0.5 0.001 0.999 1.0E-06 Pu-241 P
2 S
Truncated lognormal-n NUREG/CR-7267
-13.82 0.5 0.001 0.999 1.0E-06 Ra-226 P
2 S
Truncated lognormal-n NUREG/CR-7267
-7.88 0.8 0.001 0.999 3.8E-04 Ra-228 P
2 S
Truncated lognormal-n NUREG/CR-7267
-7.88 0.8 0.001 0.999 3.8E-04 Sb-125 P
2 S
Truncated lognormal-n NUREG/CR-7267
-10.18 0.9 0.001 0.999 3.8E-05 Sr-90 P
2 S
Truncated lognormal-n NUREG/CR-7267
-6.65 0.5 0.001 0.999 1.3E-03 Tc-99 P
2 S
Truncated lognormal-n NUREG/CR-7267
-6.91 0.7 0.001 0.999 1.0E-03 Te-125m P
2 S
Truncated lognormal-n NUREG/CR-7267
-7.99 0.9 0.001 0.999 3.4E-04 Th-228 P
2 S
Truncated lognormal-n NUREG/CR-7267
-12.21 0.9 0.001 0.999 5.0E-06 Th-229 P
2 S
Truncated lognormal-n NUREG/CR-7267
-12.21 0.9 0.001 0.999 5.0E-06 Th-230 P
2 S
Truncated lognormal-n NUREG/CR-7267
-12.21 0.9 0.001 0.999 5.0E-06 Th-232 P
2 S
Truncated lognormal-n NUREG/CR-7267
-12.21 0.9 0.001 0.999 5.0E-06 U-233 P
2 S
Truncated lognormal-n NUREG/CR-7267
-6.32 1.3 0.001 0.999 1.8E-03 U-234 P
2 S
Truncated lognormal-n NUREG/CR-7267
-6.32 1.3 0.001 0.999 1.8E-03 U-235 P
2 S
Truncated lognormal-n NUREG/CR-7267
-6.32 1.3 0.001 0.999 1.8E-03 U-236 P
2 S
Truncated lognormal-n NUREG/CR-7267
-6.32 1.3 0.001 0.999 1.8E-03 Bioaccumulation Factors for Fish ((pCi/kg)/(pCi/L))
Ac-227 P
2 S
Lognormal-n NUREG/CR-7267 3.2 1.1 2.5E+01 Am-241 P
2 S
Lognormal-n NUREG/CR-7267 5.5 1.1 2.4E+02 Am-243 P
2 S
Lognormal-n NUREG/CR-7267 5.5 1.1 2.4E+02 C-14 P
2 D
9.28E+05 75th percentile value Cm-243 P
2 S
Lognormal-n NUREG/CR-7267 3.4 1.1 3.0E+01 Cm-244 P
2 S
Lognormal-n NUREG/CR-7267 3.4 1.1 3.0E+01 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 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
RSCS TSD 25-093 Revision 0 17 BFM DCGLep Values Assuming Residential Scenario Without Drinking Water Values and Bases for RESRAD-Onsite Parameters for DCGL Calculations BFM Embedded Pipe - Residential Scenario Exposure Pathways Without Drinking Water Parameter (unit)
Type Priority Treatment Value/Distribution Basis Distribution's Statistical Parameters Median/
Mean 1
2 3
4 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 S
Lognormal-n NUREG/CR-7267 3.0 1.1 2.0E+01 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 Spacing log RESRAD Default Time integration parameters Maximum number of points for dose 17 RESRAD Default
RSCS TSD 25-093 Revision 0 18 BFM DCGLep Values Assuming Residential Scenario Without Drinking Water 3 Results The DCGLep value for each ROC was calculated as follows:
DCGLep,i = (25)÷[(POMi)*( Cf)].
Where:
DCGLep,i = embedded pipe DCGL value for ROC i", pCi/m2 25 = the NRC radiological criterion for unrestricted release, mrem/y POMi = the calculated POM value for ROC i, mrem/y per pCi/g Cf = Concentration in fill, pCi/g per 1 pCi/m2 initial surface contamination And Cf is calculated as follows:
Cf = (Pc)(Psa)÷((Fs)(CZt)(Ds)(CF))
Where:
Cf = concentration in fill, pCi/g per 1 pCi/m2 initial surface contamination Pc = the initial pipe surface contamination, 1 pCi/m2 (ENG-OCS-015)
Psa = pipe internal surface area, 470.6 m2 (ENG-OCS-015)
Fsa = floor surface area, 6355.3 m2 (ENG-OCS-015)
CZt = thickness of the CZ, 1m (ENG-OCS-015)
Ds = soil density, 1.5105 g/cm3 (ENG-OCS-015)
CF = unit conversion factor, 106cm3/1m3 Cf = (1)(470.6)÷((6355.3)(1)(1.5105)(106)) = 4.9E-08 pCi/g per 1 pCi/m2 initial surface contamination The RESRAD-Onsite POM doses and the DCGLep values are provided by ROC in Table 3.
Table 3: DCGLep Values by ROC ROC Peak of Mean Dose (mrem/y)
DCGLep (pCi/m2)
ROC Peak of Mean Dose (mrem/y)
DCGLep (pCi/m2)
Am-241 3.12E-03 1.63E+11 Nb-94 3.04E-06 1.68E+14 C-14 1.20E-01 4.25E+09 Ni-63 2.17E-06 2.35E+14 Cm-243 5.25E-04 9.71E+11 Np-237 7.04E-02 7.25E+09 Cm-244 8.74E-04 5.84E+11 Pu-238 1.18E-01 4.31E+09 Co-60 4.50E-05 1.13E+13 Pu-239 3.27E-01 1.56E+09 Cs-137 8.25E-05 6.19E+12 Pu-240 3.24E-01 1.58E+09 Eu-152 7.50E-06 6.80E+13 Pu-241 1.61E-03 3.17E+11 Eu-154 9.57E-06 5.33E+13 Sb-125 3.04E-05 1.68E+13 Fe-55 2.53E-07 2.02E+15 Sr-90 1.76E-03 2.90E+11 H-3 3.00E-05 1.70E+13 Tc-99 1.70E-03 3.01E+11 Mn-54 9.48E-07 5.38E+14
RSCS TSD 25-093 Revision 0 19 BFM DCGLep Values Assuming Residential Scenario Without Drinking Water 4 References
- 1. ENG-OCS-015, Basement Fill Model: Calculation of Embedded Pipe DCGL Values, March 6, 2024
- 2. ENG-OCS-008, Derived Concentration Guideline Levels Values for Soil - Industrial Use - Oyster Creek Station, July 26, 2023
- 3. ANL/EVS/TM-14/4, Data Collection Handbook to Support Modeling Impacts of Radioactive Material in Soil and Building Structures, September 2015
- 4. ENG-OCS-007, RESRAD-Onsite Probabilistic Analysis - Industrial Use Scenario Oyster Creek Station, July 25 2023
- 5. NUREG/CR-6697, Development of Probabilistic RESRAD 6.0 and RESRAD-BUILD 3.0 Computer Codes, Nov. 2000
- 6. NUREG/CR-7267, Default Parameter Values and Distribution in RESRAD-ONSITE V7.2, RESRAD-BUILD V3.5, and RESRAD-OFFSITE V4.0 Computer Codes, Feb. 2020
- 7. TSD 25-032, Radionuclides of Concern in Support of the Oyster Creek Station License Termination Plan, Revision 0
RSCS TSD 25-093 Revision 0 20 BFM DCGLep Values Assuming Residential Scenario Without Drinking Water Pages from the RESRAD-Onsite reports showing the POM dose values by radionuclide:
Am-241 1RESRAD-ONSITE, Version 7.2 T<< Limit = 30 days 09/05/2025 14:21 Page 20 Probabilistic results summary : OC BFM Embedded Pipes_Residential_Am-241 File : C:\\RESRAD_FAMILY\\ONSITE\\7.2\\USERFILES\\BFM EMBEDDED PIPE - RESIDENTIAL\\AM241\\BFMEP-RESIDENTIAL_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 2.031E+02 3.124E-03 C-14 1RESRAD-ONSITE, Version 7.2 T<< Limit = 30 days 09/06/2025 09:52 Page 20 Probabilistic results summary : OC BFM Embedded Pipes_Residential_C14 File : C:\\RESRAD_FAMILY\\ONSITE\\7.2\\USERFILES\\BFM EMBEDDED PIPE - RESIDENTIAL\\C14\\BFM EP-RES_C14.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 6.422E+00 1.200E-01 CM-243 1RESRAD-ONSITE, Version 7.2 T<< Limit = 30 days 09/06/2025 02:45 Page 20 Probabilistic results summary : OC BFM Embedded Pipes_Residential_Cm-243 File : C:\\RESRAD_FAMILY\\ONSITE\\7.2\\USERFILES\\BFM EMBEDDED PIPE - RESIDENTIAL\\CM243\\BFMEP-RESIDENTIAL 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 5.252E-04 Cm-244 1RESRAD-ONSITE, Version 7.2 T<< Limit = 30 days 09/05/2025 20:25 Page 20 Probabilistic results summary : OC BFM EP_Residential_DCGL_Cm-244 File : C:\\RESRAD_FAMILY\\ONSITE\\7.2\\USERFILES\\BFM EMBEDDED PIPE - RESIDENTIAL\\CM244\\BFMEP-RESIDENTIAL 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 1.557E+02 8.742E-04 Co-60 1RESRAD-ONSITE, Version 7.2 T<< Limit = 30 days 09/06/2025 10:21 Page 20 Probabilistic results summary : OC BFM Embedded Pipes_Residential_Co60 DW off File : C:\\RESRAD_FAMILY\\ONSITE\\7.2\\USERFILES\\TEST\\BFMEP-RF_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 4.498E-05 Cs-137 1RESRAD-ONSITE, Version 7.2 T<< Limit = 30 days 09/06/2025 10:34 Page 20 Probabilistic results summary : OC BFM EP Residential DCGL_Cs137 File : C:\\RESRAD_FAMILY\\ONSITE\\7.2\\USERFILES\\TEST\\BFMEP-RESIDENTIAL 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 1.859E+01 8.247E-05 Eu-152 1RESRAD-ONSITE, Version 7.2 T<< Limit = 30 days 09/06/2025 10:43 Page 20 Probabilistic results summary : OC BFM EP Res DCGL_Eu152 File : C:\\RESRAD_FAMILY\\ONSITE\\7.2\\USERFILES\\TEST\\BFMEP RESIDENTIAL 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 8.377E+00 7.500E-06
RSCS TSD 25-093 Revision 0 21 BFM DCGLep Values Assuming Residential Scenario Without Drinking Water Eu-154 1RESRAD-ONSITE, Version 7.2 T<< Limit = 30 days 09/06/2025 10:52 Page 20 Probabilistic results summary : OC BFM EP_Residential_DCGL_Eu154 File : C:\\RESRAD_FAMILY\\ONSITE\\7.2\\USERFILES\\TEST\\BFMEP-RESIDENTIAL_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 2.219E+00 9.574E-06 Fe-55 1RESRAD-ONSITE, Version 7.2 T<< Limit = 30 days 09/06/2025 11:00 Page 20 Probabilistic results summary : OC BFM EP residential_DCGL__Fe55 File : C:\\RESRAD_FAMILY\\ONSITE\\7.2\\USERFILES\\TEST\\BFMEP RESIDENTIAL 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 2.532E-07 H-3 1RESRAD-ONSITE, Version 7.2 T<< Limit = 30 days 09/06/2025 11:08 Page 20 Probabilistic results summary : OC BFM EP_residential DCGL_H3 File : C:\\RESRAD_FAMILY\\ONSITE\\7.2\\USERFILES\\TEST\\BFMEP RESIDENTIAL 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 2.997E-05 Mn-54 1RESRAD-ONSITE, Version 7.2 T<< Limit = 30 days 09/06/2025 11:17 Page 20 Probabilistic results summary : OC BFM EP Residential_DCGL_Mn54 File : C:\\RESRAD_FAMILY\\ONSITE\\7.2\\USERFILES\\TEST\\BFMEP-RESIDENTIAL 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 9.479E-07 Nb-94 1RESRAD-ONSITE, Version 7.2 T<< Limit = 30 days 09/06/2025 11:23 Page 20 Probabilistic results summary : OC BFM Embedded Pipes_Residential_DCGLNb94 File : C:\\RESRAD_FAMILY\\ONSITE\\7.2\\USERFILES\\TEST\\BFMEP-RESIDENTIAL 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 3.455E+02 3.042E-06 Ni-63 1RESRAD-ONSITE, Version 7.2 T<< Limit = 30 days 09/06/2025 11:29 Page 20 Probabilistic results summary : OC BFM Embedded Pipes_Residential_DCGL_Ni63 File : C:\\RESRAD_FAMILY\\ONSITE\\7.2\\USERFILES\\TEST\\BFMEP_RESIDENTIAL_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 1.425E+01 2.168E-06 Np-237 1RESRAD-ONSITE, Version 7.2 T<< Limit = 30 days 09/05/2025 15:05 Page 20 Probabilistic results summary : OC BFM EP_Residential_DCGL_Np237 File : C:\\RESRAD_FAMILY\\ONSITE\\7.2\\USERFILES\\BFM EMBEDDED PIPE - RESIDENTIAL\\NP237\\BFMEP-RESIDENTIAL_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 3.775E+00 7.041E-02
RSCS TSD 25-093 Revision 0 22 BFM DCGLep Values Assuming Residential Scenario Without Drinking Water Pu-238 1RESRAD-ONSITE, Version 7.2 T<< Limit = 30 days 09/05/2025 15:31 Page 20 Probabilistic results summary : OC BFM EP ResidentiaL_DCGL_Pu238 File : C:\\RESRAD_FAMILY\\ONSITE\\7.2\\USERFILES\\BFM EMBEDDED PIPE - RESIDENTIAL\\PU238\\BFMEP-RESIDENTIAL_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 9.152E+01 1.184E-01 Pu-239 1RESRAD-ONSITE, Version 7.2 T<< Limit = 30 days 09/05/2025 16:53 Page 20 Probabilistic results summary : OC BFM EP Residential_DCGL_Pu239 File : C:\\RESRAD_FAMILY\\ONSITE\\7.2\\USERFILES\\BFM EMBEDDED PIPE - RESIDENTIAL\\PU239\\BFMEP-RESIDENTIAL_DCGL_PU239.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 1.557E+02 3.266E-01 Pu-240 Probabilistic results summary : OC BFM EP Residential_DCGL_Pu240 File : C:\\RESRAD_FAMILY\\ONSITE\\7.2\\USERFILES\\BFM EMBEDDED PIPE - RESIDENTIAL\\PU240\\BFMEP_RESIDENTIAL_DCGL_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 1.557E+02 3.238E-01 Pu-241 1RESRAD-ONSITE, Version 7.2 T<< Limit = 30 days 09/11/2025 11:57 Page 20 Probabilistic results summary : OC BFM EP_Residential_DCGL_Pu-241 DW off File : C:\\RESRAD_FAMILY\\ONSITE\\7.2\\USERFILES\\TEST\\BFMEP-RESIDENTIAL_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 3.162E+01 1.612E-03 Sb-125 1RESRAD-ONSITE, Version 7.2 T<< Limit = 30 days 09/06/2025 11:39 Page 20 Probabilistic results summary : OC BFM EP_Resoidential_DCGL_SB125 File : C:\\RESRAD_FAMILY\\ONSITE\\7.2\\USERFILES\\TEST\\BFMEP-RESIDENTIAL_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 3.404E-05 Sr-90 1RESRAD-ONSITE, Version 7.2 T<< Limit = 30 days 09/06/2025 11:48 Page 20 Probabilistic results summary : OC BFM EP Residential_DCGL_Sr90 File : C:\\RESRAD_FAMILY\\ONSITE\\7.2\\USERFILES\\TEST\\BFMEP-RESIDENTIAL_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 3.775E+00 1.761E-03 Tc-99 1RESRAD-ONSITE, Version 7.2 T<< Limit = 30 days 09/06/2025 11:55 Page 20 Probabilistic results summary : OC BFM EP Residential_DCGL_Tc99 File : C:\\RESRAD_FAMILY\\ONSITE\\7.2\\USERFILES\\TEST\\BFMEP RESIDENTIAL_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 0.000E+00 1.697E-03