ML25345A141

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Technical Support Document No.25-091, Rev. 0, Bfm Dcgl W/F Values Assuming the Residential Scenario Without Drinking Water
ML25345A141
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
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HDI 25-039 25-091, Rev 0
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BFM DCGLw/f Values Assuming the Residential Scenario Without Drinking Water Technical Support Document No.25-091 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. 12, 2025

~ RSCS Rad1at1or Safety & Control Services RSCS Radiation Safety & Control Services

RSCS TSD 25-091 Revision 0 2

BFM DCGLw/f Values Assuming Residential Scenario Without Drinking Water Contents 1

Introduction........................................................................................................................... 3 2

Input and Calculations........................................................................................................... 4 2.1 Input and Calculations for the Instantaneous Release Scenario............................................ 5 2.2 Input and Calculations for the Drilling Spoils Scenario........................................................ 20 2.3 Input and Calculations for the Excavated Concrete Scenario.............................................. 21 2.4 Calculations for BFM DCGLw/f Values.................................................................................... 22 3

References........................................................................................................................... 22

RSCS TSD 25-091 Revision 0 3

BFM DCGLw/f Values Assuming Residential Scenario Without Drinking Water 1 Introduction This report documents the development of Basement Fill Model (BFM) DCGLw/f values with application of the Residential Scenario exposure pathways, excluding drinking water. The BFM incorporates the contributions to DCGLw/f values from 3 sub-scenarios: (1) an instantaneous release (IR) of concrete contamination to the fill material, (2) drilling spoils (DS), and (3) excavated concrete (EC). The residential exposure pathways are open in the evaluation of each of the 3 sub-scenarios. The RESRAD modeling for the BFM is described in detail is RSCS TSD 24-055 [1] and RSCS TSD 24-063 [2]. The DCGLw/f values are the summations of the dose contribution from each sub-scenario.

The Residential Scenario is considered a less likely but plausible exposure scenario for the OCNGS site. The scenario assumptions are:

The OCNGS site transitions to a residential neighborhood consisting of single-family houses, each with enough land area to support a backyard garden.

The critical receptor is a hypothetic individual who resides on the site year-round, ingests garden vegetables grown in a backyard garden, and ingests aquatic food from the canal which is assumed to remain after license termination.

Each residential structure is connected to the municipal water supply system already onsite, thereby making the municipal water the source for all drinking water and household water use.

The critical receptor installs a well to use untreated groundwater for the sole purpose of irrigating a 650 ft2 backyard garden (the average size in the State of NJ based on web search).

Shielding due to the developed asphalt neighborhood roads and driveways is ignored. There is no meat-or milk-producing livestock onsite.

The RESRAD exposure pathways assumed open are external gamma, inhalation, plant ingestion, aquatic food ingestion, and soil ingestion.

The meat, milk, drinking water, and radon are closed RESRAD exposure pathways.

The BFM conceptual model is described in TSD 24-055. In summary, the model consists of 2 geologic strata:

A contaminated zone (CZ) that is covered by 3ft of material that does not contribute to the source term and is 26.74% above the groundwater table and 73.26% below the groundwater table and the saturated zone (SZ).

Figure 1 depicts the BFM conceptual model.

RSCS TSD 25-091 Revision 0 4

BFM DCGLw/f Values Assuming Residential Scenario Without Drinking Water Figure 1 Conceptual Configuration of the CV The DCGL values developed in this document correspond to the NRC dose criteria established in 10CFR20.1403 (i.e., 25 mrem/y).

2 Input and Calculations A site-specific suite of potential radionuclides-of-concern (ROCs) has been identified for the OCNGS site [3]

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.

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 Cs-137 Pu-239 Ac-227, Pa-231, U-235 3ft (0.91m) cover 26.74% above GW table GW table @ 14.5ft (4.42m) 73.26% below GW table

<---------------- CZ width = 145.3ft (44.3m) = LPAF -------------------->

yellow = CV

<----------- CZ thickness = RB wall height 43ft (13.11m)------->

<--- Final Site Cover I

1-------------------------------------------------------------------------------------------------------------

1--------------------------------------------------

RSCS TSD 25-091 Revision 0 5

BFM DCGLw/f Values Assuming Residential Scenario Without Drinking Water ROC Progeny ROC Progeny 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 Tc-99 Mn-54 2.1 Input and Calculations for the Instantaneous Release Scenario In the development of DCGLIR values the input values for RESRAD parameters that define the BFM contaminated volume, area of the contaminated zone, cover for the contaminated zone, and site characteristic such as depth to groundwater, are from TSD 24-063.

Input for the annual dietary fraction of aquatic food from the canal is set to 0.61, the same fraction applied to critical receptor under the Industrial Use scenario (see ENG-OCS-008 [4]).

The irrigation rate (IRr) for the garden is determined using equation 3.4.2 in ANL/EVS/TM-14/4 [5]:

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 meteorological data - see ENG-OCS-007 [6])

Ce

= Evapotranspiration Coefficient distribution applied (NUREG-6697 [7], 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.

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 [8], Table C-13.

fp = 60.4m2/2000m2 = 0.03

RSCS TSD 25-091 Revision 0 6

BFM DCGLw/f Values Assuming Residential Scenario Without Drinking Water 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 IRr 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 For conservatism, the maximum water use value is applied in the DCGL calculations.

The probabilistic mode of the RESRAD-Onsite code was used to calculate ROC-specific peak of the mean (POM) doses associated with soil concentrations equal to 1 pCi/g. The POM doses were then used to develop the DCGLIR values.

Risk-sensitive parameters for the BFM instantaneous release have been identified (see RSCS TSD 24-055).

The 75th and 25th percentile values assigned to risk-sensitive parameters are included as input in the RESRAD-Onsite executions. Input values and their basis for all RESRAD-Onsite parameters are provided below.

Table 2: Input Values and Bases for RESRAD-Onsite Parameters Instantaneous Release for the Residential Scenario Exposure Pathways without Drinking Water Parameter (unit)

Type Priority Treatment Value/Distribution Basis Distribution's Statistical Parametersa 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, 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

S 2.69E+02 (CZ)

Truncated lognormal-n 25th percentile value ANL/EVS/TM-14/4 6.91 1.95 0.001 0.999 1000 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

S 6.14E+00 (CZ)

Truncated lognormal-n 25th percentile value ANL/EVS/TM-14/4 3.04 1.82 0.001 0.999 21 Cm-243 P

1 D

S 5.74E+02 (CZ)

Truncated lognormal-n 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 25th percentile value ANL/EVS/TM-14/4 8.13 2.64 0.001 0.999 3400 Co-60 P

1 D

S 3.71E+01 (CZ)

Truncated lognormal-n 25th percentile value ANL/EVS/TM-14/4 5.56 2.89 0.001 0.999 260

RSCS TSD 25-091 Revision 0 7

BFM DCGLw/f Values Assuming Residential Scenario Without Drinking Water Instantaneous Release for the Residential Scenario Exposure Pathways without Drinking Water Parameter (unit)

Type Priority Treatment Value/Distribution Basis Distribution's Statistical Parametersa Median/

Mean 1

2 3

4 Cs-137 P

1 D

S 1.58E+02 (CZ)

Truncated lognormal-n 25th percentile value ANL/EVS/TM-14/4 6.27 1.79 0.001 0.999 530 Eu-152 P

1 D

S 6.40E+01 (CZ)

Truncated lognormal-n 25th percentile value ANL/EVS/TM-14/4 6.86 4.01 0.001 0.999 955 Eu-154 P

1 D

S 6.40E+01 (CZ)

Truncated lognormal-n 25th percentile value ANL/EVS/TM-14/4 6.86 4.01 0.001 0.999 955 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-02 (CZ)

Truncated lognormal-n 25th percentile value ANL/EVS/TM-14/4

-2.81 0.5 0.001 0.999 0.06 Mn-54 P

1 D

S 1.66E+02 (CZ)

Truncated lognormal-n 25th percentile value ANL/EVS/TM-14/4 6.89 2.64 0.001 0.999 980 Nb-94 P

1 D

S 3.80E+03 (CZ)

Truncated lognormal-n 75th percentile value ANL/EVS/TM-14/4 7.31 1.39 0.001 0.999 1500 Ni-63 P

1 D

S 2.77E+01 (CZ)

Truncated lognormal-n 25th percentile value ANL/EVS/TM-14/4 4.87 2.3 0.001 0.999 130 Np-237 P

1 D

S 5.49E+00 (CZ)

Truncated lognormal-n 25th percentile value ANL/EVS/TM-14/4 2.64 1.39 0.001 0.999 14 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

S 1.57E+02 (CZ)

Truncated lognormal-n 25th percentile value ANL/EVS/TM-14/4 5.99 1.39 0.001 0.999 400 Pu-239 P

1 D

S 1.57E+02 (CZ)

Truncated lognormal-n 25th percentile value ANL/EVS/TM-14/4 5.99 1.39 0.001 0.999 400 Pu-240 P

1 D

S 1.57E+02 (CZ)

Truncated lognormal-n 25th percentile value ANL/EVS/TM-14/4 5.99 1.39 0.001 0.999 400 Pu-241 P

1 D

S 1.56E+02 (CZ)

Truncated lognormal-n 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 25th percentile value ANL/EVS/TM-14/4 2.83 1.79 0.001 0.999 17 Sr-90 P

1 D

S 6.58E+00 (CZ)

Truncated lognormal-n 25th percentile value ANL/EVS/TM-14/4 3.09 1.79 0.001 0.999 22 Tc-99 P

1 S

Truncated lognormal-n ANL/EVS/TM-14/4

-3.22 1.1 0.001 0.999 0.04 Te-125m P

1 D

S 6.29E+01 (CZ)

Truncated lognormal-n 25th percentile value ANL/EVS/TM-14/4 6.31 3.22 0.001 0.999 550

RSCS TSD 25-091 Revision 0 8

BFM DCGLw/f Values Assuming Residential Scenario Without Drinking Water Instantaneous Release for the Residential Scenario Exposure Pathways without Drinking Water Parameter (unit)

Type Priority Treatment Value/Distribution Basis Distribution's Statistical Parametersa Median/

Mean 1

2 3

4 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 of radionuclides present in groundwater (pCi/l)

P 3

D 0

Ground water uncontaminated Calculation Times Time since placement of material (y)

P 3

D 0

Time for calculations (y)

P 3

D 0, 1, 3, 10, 30, 100, 300, 1000 RESRAD Default Contaminated Zone Area of contaminated zone (m2)

P 2

D 1539.6 Based on contaminated volume and height of RB wall.

Thickness of contaminated zone (m)

P 2

D 13.1 CZ thickness set to RB wall height.

Length parallel to aquifer flow (m)

P 2

D 44.3 Set to diameter of CZ.

Does the initial contamination penetrate the water table?

Yes Based on site features and RB dimensions.

Contaminated fraction below water table D

.7326 Based on OCGS site data; average groundwater depths recorded for wells around the RB, TB, and ORB.

Cover and Contaminated Zone Hydrological Data Cover depth (m)

P 2

D 0.91 3ft cover over the fill material is assumed.

Cover density (g/cm3)

P 2

S 1.40E+00 Truncated Normal 25th percentile value (applied to Nb-94)

Site soil type = sand (OCNGS Hydrogeologic Investigation Report).

Input for density of fill material = NUREG/CR-7267 density distribution for site soil type - sand.

(Applied to all other ROCs) 1.5105 0.159 0.001 0.999 1.5105 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)

RSCS TSD 25-091 Revision 0 9

BFM DCGLw/f Values Assuming Residential Scenario Without Drinking Water Instantaneous Release for the Residential Scenario Exposure Pathways without Drinking Water Parameter (unit)

Type Priority Treatment Value/Distribution Basis Distribution's Statistical Parametersa Median/

Mean 1

2 3

4 Density of contaminated zone (g/cm3)

P 1

D S

1.62E+00 Truncated Normal 75th percentile value (applied to H-3)

Site soil type = sand (OCNGS Hydrogeologic Investigation Report).

Input for density of fill material = NUREG/CR-7267 density distribution for site soil type - sand.

(Applied to all other ROCs) 1.5105 0.159 0.001 0.999 1.5105 Contaminated zone erosion rate (m/y)

P 2

D 6E-04 Assumed same as cover.

Contaminated zone total porosity P

2 S

Bounded Normal 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 Contaminated zone hydraulic conductivity (m/y)

P 2

D 2741 OCNGS 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 From Regional and Site-Specific Absolute Humidity Data for Use in Tritium Dose Calculations.

Evapotranspiration coefficient P

2 S

Uniform NUREG/CR-7267 distribution 0.5 0.75 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 S

6.00E-02 Uniform 75th percentile value (applied to Fe-55)

Distribution determined using methodology described in Data Collection Handbook and NUREG/CR-6697 (Applied to all other ROCs) 0 0.08 0.04 Irrigation mode B

3 D

Overhead Overhead irrigation is common practice for crops in U.S.

RSCS TSD 25-091 Revision 0 10 BFM DCGLw/f Values Assuming Residential Scenario Without Drinking Water Instantaneous Release for the Residential Scenario Exposure Pathways without Drinking Water Parameter (unit)

Type Priority Treatment Value/Distribution Basis Distribution's Statistical Parametersa Median/

Mean 1

2 3

4 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 Truncated Normal NUREG/CR-7267 distribution for site soil type -sand 1.5105 0.159 0.001 0.999 1.5105 Saturated zone total porosity P

1 S

Truncated Normal NUREG/CR-7267 distribution for site soil type -sand 0.43 0.06 0.001 0.999 0.43 Saturated zone effective porosity P

1 D

0.25 OCNGS Hydrogeologic Investigation Report 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

S 1.75E-02 Uniform) 25th percentile value (applied to H-3, Nb-94, and Tc-99)

OCNGS Hydrogeologic Investigation Report (Applied to all other ROCs) 0.01 0.04 0.025 Saturated 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 Water table drop rate (m/y)

P 3

D 1.00E-03 RESRAD Default Well pump intake depth (m

below water table)

P 2

D 9.6 Set to the distance from the water table to the lower boundary of contamination in the aquifer at the downgradient edge of the contaminated zone.

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

RSCS TSD 25-091 Revision 0 11 BFM DCGLw/f Values Assuming Residential Scenario Without Drinking Water Instantaneous Release for the Residential Scenario Exposure Pathways without Drinking Water Parameter (unit)

Type Priority Treatment Value/Distribution Basis Distribution's Statistical Parametersa Median/

Mean 1

2 3

4 Unsat.

zone 1,

thickness (m)

P 1

D N/A Unsat. zone 1, soil density (g/cm3)

P 2

S N/A Unsat. zone 1, total porosity P

2 S

N/A Unsat.

zone 1,

effective porosity P

2 D

N/A Unsat. zone 1, field capacity P

3 D

N/A Unsat.

zone 1,

hydraulic conductivity (m/y)

P 2

D N/A Unsat. zone 1, soil-specific b parameter P

2 S

N/A 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 D

S 4.00E-01 Bounded lognormal-n (All other ROCs) 75th percentile value (applied to Nb-94)

NUREG/CR-7267 (Applied to all other ROCS)

-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 Shape factor

flag, external gamma P

3 D

Circular 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 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

RSCS TSD 25-091 Revision 0 12 BFM DCGLw/f Values Assuming Residential Scenario Without Drinking Water Instantaneous Release for the Residential Scenario Exposure Pathways without Drinking Water Parameter (unit)

Type Priority Treatment Value/Distribution Basis Distribution's Statistical Parametersa Median/

Mean 1

2 3

4 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, Vol.

3, beef cattle + poultry + layer hen Livestock fodder intake for milk (kg/d)

M 3

D 63.2 NUREG/CR5512, Vol. 3,

forage + grain + hay Livestock water intake for meat (L/d)

M 3

D 50.6 NUREG/CR5512, Vol.

3, beef cattle + poultry + layer hen Livestock water intake for milk (L/d)

M 3

D 60 NUREG/CR5512, Vol. 3 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, Vol. 3, gardening Depth of soil mixing layer (m)

P 2

S Triangular NUREG/CR-7267, App. C 0

0.15 0.6 0.23 Depth of roots (m)

P 1

D S

3.07E+00 Uniform 75th percentile value (applied to Am-241, C-14, Cm-243/244, Co-60, Cs-137, Eu-152, Eu-154, Fe-55, H-3, Mn-54, Ni-63, Np-237, Pu-238/239/240, Sr-90, and Tc-99)

NUREG/CR-7267, Att. C (applied to Nb-94, Pu-241, and Sb-125) 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 Household water fraction from ground water P

3 1

RESRAD default

RSCS TSD 25-091 Revision 0 13 BFM DCGLw/f Values Assuming Residential Scenario Without Drinking Water Instantaneous Release for the Residential Scenario Exposure Pathways without Drinking Water Parameter (unit)

Type Priority Treatment Value/Distribution Basis Distribution's Statistical Parametersa Median/

Mean 1

2 3

4 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

S Truncated lognormal-n NUREG/CR-7267, App. C 0.56 0.48 0.001 0.999 1.75 Wet weight crop yield for Leafy (kg/m2)

P 3

D 2.88921 NUREG/CR-5512, Vol. 3 Wet weight crop yield for Fodder (kg/m2)

P 3

D 1.8868 NUREG/CR-5512, Vol. 3 Growing Season for Non-Leafy (y)

P 3

D 0.246 NUREG/CR-5512, Vol. 3 Growing Season for Leafy (y)

P 3

D 0.123 NUREG/CR-5512, Vol. 3 Growing Season for Fodder (y)

P 3

D 0.082 NUREG/CR-5512, Vol. 3 Translocation Factor for Non-Leafy P

3 D

0.1 NUREG/CR-5512, Vol. 3 Translocation Factor for Leafy P

3 D

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

3 D

1 NUREG/CR-5512, Vol. 3 Weathering Removal Constant for Vegetation (1/y)

P 2

D S

2.15E+01 Triangular 25th percentile value applied to Fe-55 NUREG/CR-7267 (applied to all other ROCs) 33 Wet Foliar Interception Fraction for Non-Leafy P

3 D

0.35 NUREG/CR-5512, Vol. 3 Wet Foliar Interception Fraction for Leafy P

2 S

Triangular 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, Vol. 3 Dry Foliar Interception Fraction for Non-Leafy P

3 D

0.35 NUREG/CR-5512, Vol. 3 Dry Foliar Interception Fraction for Leafy P

3 D

0.35 NUREG/CR-5512, Vol. 3 Dry Foliar Interception Fraction for Fodder P

3 D

0.35 NUREG/CR-5512, Vol. 3 Storage times of contaminated foodstuffs (days):

Fruits, non-leafy vegetables, and grain B

3 D

14 NUREG/CR-5512, Vol. 3 Leafy vegetables B

3 D

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

3 D

1 NUREG/CR-5512, Vol. 3 Meat and poultry B

3 D

20 NUREG/CR-5512, Vol.

3 (holdup period for beef)

Fish B

3 D

7 RESRAD Default

RSCS TSD 25-091 Revision 0 14 BFM DCGLw/f Values Assuming Residential Scenario Without Drinking Water Instantaneous Release for the Residential Scenario Exposure Pathways without Drinking Water Parameter (unit)

Type Priority Treatment Value/Distribution Basis Distribution's Statistical Parametersa Median/

Mean 1

2 3

4 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 D

1.85E-03 75th percentil value 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 D

1.84E-03 75th percentil value Cm-244 P

1 D

1.84E-03 75th percentil value Co-60 P

1 D

1.50E-01 75th percentil value Cs-137 P

1 D

7.98E-02 75th percentil value Eu-152 P

1 D

4.25E-03 75th percentil value Eu-154 P

1 D

4.25E-03 75th percentil value Fe-55 P

1 D

1.85E-03 75th percentil value 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 D

5.51E-01 75th percentil value Nb-94 P

1 D

1.97E-02 75th percentil value Ni-63 P

1 D

9.11E-02 75th percentil value Np-237 P

1 D

3.70E-02 75th percentil value

RSCS TSD 25-091 Revision 0 15 BFM DCGLw/f Values Assuming Residential Scenario Without Drinking Water Instantaneous Release for the Residential Scenario Exposure Pathways without Drinking Water Parameter (unit)

Type Priority Treatment Value/Distribution Basis Distribution's Statistical Parametersa Median/

Mean 1

2 3

4 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 D

1.85E-03 75th percentil value Pu-239 P

1 D

1.85E-03 75th percentil value Pu-240 P

1 D

1.85E-03 75th percentil value Pu-241 P

1 S

Truncated lognormal-n NUREG/CR-7267

-6.9 0.9 0.001 0.999 1.0E-03 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 D

5.90E-01 75th percentil value Tc-99 P

1 D

9.07E+00 75th percentil 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 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 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 S

Truncated lognormal-n NUREG/CR-7267

-3.82 0.9 0.001 0.999 2.2E-02 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 S

Truncated lognormal-n NUREG/CR-7267

-4.27 0.4 0.001 0.999 1.4E-02 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 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

RSCS TSD 25-091 Revision 0 16 BFM DCGLw/f Values Assuming Residential Scenario Without Drinking Water Instantaneous Release for the Residential Scenario Exposure Pathways without Drinking Water Parameter (unit)

Type Priority Treatment Value/Distribution Basis Distribution's Statistical Parametersa Median/

Mean 1

2 3

4 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-12m 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 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 S

Truncated lognormal-n NUREG/CR-7267

-5.38 0.7 0.001 0.999 4.6E-03 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 S

Truncated lognormal-n NUREG/CR-7267

-3.91 0.7 0.001 0.999 2.0E-02 Np-237 P

2 S

Truncated lognormal-n NUREG/CR-7267

-11.51 0.7 0.001 0.999 1.0E-05 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

RSCS TSD 25-091 Revision 0 17 BFM DCGLw/f Values Assuming Residential Scenario Without Drinking Water Instantaneous Release for the Residential Scenario Exposure Pathways without Drinking Water Parameter (unit)

Type Priority Treatment Value/Distribution Basis Distribution's Statistical Parametersa Median/

Mean 1

2 3

4 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-12m 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 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 S

Lognormal-n NUREG/CR-7267 13.0 1.1 4.4E+05 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 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

RSCS TSD 25-091 Revision 0 18 BFM DCGLw/f Values Assuming Residential Scenario Without Drinking Water Instantaneous Release for the Residential Scenario Exposure Pathways without Drinking Water Parameter (unit)

Type Priority Treatment Value/Distribution Basis Distribution's Statistical Parametersa Median/

Mean 1

2 3

4 Tc-99 P

2 S

Lognormal-n NUREG/CR-7267 3.0 1.1 2.0E+01 Te-12m 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 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 a 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 For the instantaneous release scenario, the DCGLIR values are calculated as follows:

DCGLIR,i = (25)/((POMi)(Cfill))

Where DCGLIR,i = the DCGLIR value for ROC i, pCi/m2 25 = NRC radiological criterion for unrestricted release, mrem/y POMi = RESRAD-Onsite calculated POM dose for ROC i, mrem/y per 1 pCi/g Cfill = concentration in fill material (pCi/g) per a concrete surface area concentration equal to 1 pCi/m2 The term Cfill was calculated as follows:

Cfill = As/((Vfill)(1E6)(Dfill))

Where Cfill = activity concentration in fill material (pCi/g) per surface area activity concentration (1pCi/m2)

As = unit surface area activity concentration assumed over 1m2 of concrete surface (1pCi)

Vfill = unit volume of fill material (1m3) 1E6 = conversion factor (cm3 per m3)

Dfill = density of fill material (g/cm3)

RSCS TSD 25-091 Revision 0 19 BFM DCGLw/f Values Assuming Residential Scenario Without Drinking Water The mean value of the density distribution for sand (1.5105 g/cm3) was used as the value for Dfill. The value of Cfill = 6.62E-07 pCi/g.

Table 3: DCGLIR Values by ROC ROC POM dose (mrem/y)

DCGLIR (pCi/m2)

Am-241 2.31E-02 1.63E+09 C-14 4.27E-02 8.84E+08 Cm-243 8.18E-03 4.62E+09 Cm-244 6.54E-03 5.77E+09 Co-60 6.00E-03 6.29E+09 Cs-137 5.71E-03 6.61E+09 Eu-152 1.14E-04 3.31E+11 Eu-154 1.56E-04 2.42E+11 Fe-55 2.48E-06 1.52E+13 H-3 2.70E-04 1.40E+11 Mn-54 1.62E-03 2.33E+10 Nb-94 5.55E-02 6.80E+08 Ni-63 8.56E-05 4.41E+11 Np-237 4.41E-01 8.56E+07 Pu-238 1.30E-01 2.90E+08 Pu-239 1.61E-01 2.35E+08 Pu-240 1.56E-01 2.42E+08 Pu-241 2.37E-03 1.59E+10 Sb-125 2.75E-04 1.37E+11 Sr-90 1.27E-01 2.97E+08 Tc-99 2.17E-02 1.74E+09

RSCS TSD 25-091 Revision 0 20 BFM DCGLw/f Values Assuming Residential Scenario Without Drinking Water 2.2 Input and Calculations for the Drilling Spoils Scenario For the drilling spoils scenario, the DCGLds values are calculated as follows:

The ROC-specific DCGLds values were calculated as follows:

DCGLds,ROC = (25)(Cc)(AFdsA)/POMROC Where 25 = 10CFR20.1402 radiological criterion for unrestricted release, mrem/y Cc = area concentration activity of contamination on the concrete required to produce a concentration in the drilling spoils equal to 1 pCi/g, 8.05x106 pCi/m2 (value from RSCS TSD 24-063)

AFdsA = unitless area factor values (applicable to 1m2 drilling spoil contaminated zone taken from ENG-OCS-009 [9]).

POMROC = peak of the mean dose for soil, mrem/y per pCi/g (values from TSD 25-089 [10])

Table 4: DCGLds Values by ROC ROC POM Dose (mrem/y per pCi/g)

AFdsA DCGLds (pCi/m2)

Am-241 8.81E-02 12 2.74E+10 C-14 1.42E-01 585 8.29E+11 Cm-243 2.61E-01 9

6.94E+09 Cm-244 4.68E-02 16 6.88E+10 Co-60 5.66E+00 9

3.20E+08 Cs-137 1.28E+00 9

1.42E+09 Eu-152 2.55E+00 9

7.10E+08 Eu-154 2.75E+00 9

6.59E+08 Fe-55 1.15E-05 278 4.87E+15 H-3 1.98E-03 45 4.57E+12 Mn-54 1.32E+00 9

1.37E+09 Nb-94 3.59E+00 9

5.05E+08 Ni-63 2.17E-04 176 1.63E+14 Np-237 1.07E+00 9

1.69E+09 Pu-238 7.52E-02 16 4.28E+10 Pu-239 1.41E-01 21 3.00E+10 Pu-240 1.33E-01 21 3.18E+10 Pu-241 2.94E-03 24 1.64E+12 Sb-125 8.09E-01 9

2.24E+09 Sr-90 3.64E-01 11 6.08E+09 Tc-99 4.15E-02 27 1.31E+11

RSCS TSD 25-091 Revision 0 21 BFM DCGLw/f Values Assuming Residential Scenario Without Drinking Water 2.3 Input and Calculations for the Excavated Concrete Scenario A detailed description of the excavated concrete (ec) scenario and calculations for the contaminated volume and contaminated area are provided in RSCS TSD 24-063.

The ROC-specific DCGLec values are calculated using Equation 10 in RSCS TSD 24-063:

DCGLec,i = (DCGLsoil,i)(AFcz,i)/Cec Where DCGLec,i = the DCGLec value for ROC i, pCi/m2 DCGLsoil,i = the soil DCGL for ROC i, pCi/g (values from TSD 25-089)

AFcz,i = the area factor for ROC i corresponding to contaminated area of the excavated concrete, 872 m2 determined in RSCS TSD 24-063 (AF values from ENG-OCS-009)

Cec = unit concentration in the excavated concrete, 4.75x10-7 pCi/g per 1 pCi/m2 (RSCS TSD 24-063)

The AF for a CZ area = 872 m2 falls between values listed for CZ areas equal to 500 m2 to 1000 m2 (Table 4 in ENG-OCS-009). Except for C-14 and Tc-99, the AF value = 1 for all other ROCs for a 1000 m2 CZ area. An AF value = 1 was applied to all ROCs to increase conservatism.

Table 5: DCGLec Values by ROC ROC DCGLsoil (pCi/g)

DCGLec (pCi/m2)

Am-241 2.84E+02 5.97E+08 C-14 1.77E+02 3.72E+08 Cm-243 9.59E+01 2.02E+08 Cm-244 5.35E+02 1.13E+09 Co-60 4.41E+00 9.27E+06 Cs-137 1.96E+01 4.12E+07 Eu-152 9.82E+00 2.07E+07 Eu-154 9.09E+00 1.91E+07 Fe-55 2.18E+06 4.58E+12 H-3 1.27E+04 2.67E+10 Mn-54 1.89E+01 3.97E+07 Nb-94 6.96E+00 1.46E+07 Ni-63 1.15E+05 2.42E+11 Np-237 2.33E+01 4.90E+07 Pu-238 3.33E+02 7.00E+08 Pu-239 1.77E+02 3.72E+08 Pu-240 1.88E+02 3.95E+08 Pu-241 8.51E+03 1.79E+10 Sb-125 3.09E+01 6.50E+07 Sr-90 6.88E+01 1.45E+08 Tc-99 6.03E+02 1.27E+09

RSCS TSD 25-091 Revision 0 22 BFM DCGLw/f Values Assuming Residential Scenario Without Drinking Water 2.4 Calculations for BFM DCGLw/f Values DCGLw/f values were calculated using the following equation:

DCGLw/f = 1/((1/DCGLIR)+(1/DCGLds)+(1/DCGLec))

Table 6: DCGLw/f Values by ROC ROC DCGLIR (pCi/m2)

DCGLds (pCi/m2)

DCGLec (pCi/m2)

DCGLw/f (pCi/m2)

Am-241 1.63E+09 2.74E+10 5.97E+08 4.31E+08 C-14 8.84E+08 8.29E+11 3.72E+08 2.62E+08 Cm-243 4.62E+09 6.94E+09 2.02E+08 1.88E+08 Cm-244 5.77E+09 6.88E+10 1.13E+09 9.29E+08 Co-60 6.29E+09 3.20E+08 9.27E+06 9.00E+06 Cs-137 6.61E+09 1.42E+09 4.12E+07 3.98E+07 Eu-152 3.31E+11 7.10E+08 2.07E+07 2.01E+07 Eu-154 2.42E+11 6.59E+08 1.91E+07 1.86E+07 Fe-55 1.52E+13 4.87E+15 4.58E+12 3.52E+12 H-3 1.40E+11 4.57E+12 2.67E+10 2.23E+10 Mn-54 2.33E+10 1.37E+09 3.97E+07 3.86E+07 Nb-94 6.80E+08 5.05E+08 1.46E+07 1.39E+07 Ni-63 4.41E+11 1.63E+14 2.42E+11 1.56E+11 Np-237 8.56E+07 1.69E+09 4.90E+07 3.06E+07 Pu-238 2.90E+08 4.28E+10 7.00E+08 2.04E+08 Pu-239 2.35E+08 3.00E+10 3.72E+08 1.43E+08 Pu-240 2.42E+08 3.18E+10 3.95E+08 1.49E+08 Pu-241 1.59E+10 1.64E+12 1.79E+10 8.39E+09 Sb-125 1.37E+11 2.24E+09 6.50E+07 6.31E+07 Sr-90 2.97E+08 6.08E+09 1.45E+08 9.58E+07 Tc-99 1.74E+09 1.31E+11 1.27E+09 7.29E+08 3 References

1. TSD 24-055, Basement Fill Model: Probabilistic Analyses for the Instantaneous Release Scenario Assuming Industrial Use Exposure Pathways, June 27, 2024
2. TSD 24-063, Basement Fill Model: Probabilistic Analyses for the Instantaneous Release Scenario Assuming Industrial Use Exposure Pathways, August 29, 2024
3. Radionuclide Selection for DCGL Development-Oyster Creek Station Site Characterization Project, January 2022

RSCS TSD 25-091 Revision 0 23 BFM DCGLw/f Values Assuming Residential Scenario Without Drinking Water

4. ENG-OCS-008, Derived Concentration Guideline Levels Values for Soil - Industrial Use Scenario Oyster Creek Station
5. ANL/EVS/TM-14/4, Data Collection Handbook to Support Modeling Impacts of Radioactive Material in Soil and Building Structures, September 2015
6. ENG-OCS-007, RESRAD-Onsite Probabilistic Analysis - Industrial Use Scenario Oyster Creek Station, July 25 2023
7. NUREG/CR-6697, Development of Probabilistic RESRAD 6.0 and RESRAD-Build 3.0 Computer Codes, November 2000
8. NUREG/CR-7267, Default Parameter Values and Distribution in RESRAD-ONSITE V7.2, RESRAD-BUILD V3.5, and RESRAD-OFFSITE V4.0 Computer Codes, February 2020
9. ENG-OCS-009, Area Factors for Soil - Industrial Use Scenario
10. TSD 25-089, Soil DCGL Values Assuming the Residential Scenario Without Drinking Water, September 11, 2025

RSCS TSD 25-091 Revision 0 24 BFM DCGLw/f Values Assuming Residential Scenario Without Drinking Water Pages from the RESRAD-Onsite reports showing the POM dose values for the Instantaneous Release Scenario by radionuclide:

Am-241 1RESRAD-ONSITE, Version 7.2 T<< Limit = 30 days 11/15/2024 12:17 Page 20 Probabilistic results summary : OCS_BFM-IR_Residential_DCGL_Am241 File : C:\\RESRAD_FAMILY\\ONSITE\\7.2\\USERFILES\\BFM INST RELEASE - RESIDENTIAL\\AM241\\OC_BFM_IR_RESIDENTIAL_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 1.701E+00 2.309E-02 C-14 1RESRAD-ONSITE, Version 7.2 T<< Limit = 30 days 11/15/2024 13:25 Page 20 Probabilistic results summary : OCS_BFM-IR_Residential_DCGL_C14 File : C:\\RESRAD_FAMILY\\ONSITE\\7.2\\USERFILES\\BFM INST RELEASE - RESIDENTIAL\\C14\\OC_BFM_IR_DCGL_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 1.000E+00 4.267E-02 CM-243 1RESRAD-ONSITE, Version 7.2 T<< Limit = 30 days 11/15/2024 13:42 Page 21 Probabilistic results summary : OCS_BFM-IR_Residential_DCGL_Cm243 File : C:\\RESRAD_FAMILY\\ONSITE\\7.2\\USERFILES\\BFM INST RELEASE - RESIDENTIAL\\CM243\\OC_BFM_IR_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 8.176E-03 Cm-244 1RESRAD-ONSITE, Version 7.2 T<< Limit = 30 days 11/15/2024 17:22 Page 21 Probabilistic results summary : OCS_BFM-IR_Residential_DCGL_Cm244 File : C:\\RESRAD_FAMILY\\ONSITE\\7.2\\USERFILES\\BFM INST RELEASE - RESIDENTIAL\\CM244\\OC_BFM_IR_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 0.000E+00 6.542E-03 Co-60 1RESRAD-ONSITE, Version 7.2 T<< Limit = 30 days 11/15/2024 08:47 Page 20 Probabilistic results summary : OCS_BFM-IR_Residential_DCG_Co60 File : C:\\RESRAD_FAMILY\\ONSITE\\7.2\\USERFILES\\BFM INST RELEASE - RESIDENTIAL\\CO60\\OC_BFM_IR_RESIDENTIAL_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 6.003E-03 Cs-137 1RESRAD-ONSITE, Version 7.2 T<< Limit = 30 days 11/15/2024 09:21 Page 20 Probabilistic results summary : OCS_BFM-IR_Residential_DCGL_Cs137 File : C:\\RESRAD_FAMILY\\ONSITE\\7.2\\USERFILES\\BFM INST RELEASE - RESIDENTIAL\\CS137\\OC_BFM_IR_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 0.000E+00 5.710E-03

RSCS TSD 25-091 Revision 0 25 BFM DCGLw/f Values Assuming Residential Scenario Without Drinking Water Eu-152 1RESRAD-ONSITE, Version 7.2 T<< Limit = 30 days 11/15/2024 09:36 Page 20 Probabilistic results summary : OCS_BFM-IR_Residential_DCGL - Eu152 File : C:\\RESRAD_FAMILY\\ONSITE\\7.2\\USERFILES\\BFM INST RELEASE - RESIDENTIAL\\EU152\\OC_BFM_IR_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 0.000E+00 1.139E-04 Eu-154 1RESRAD-ONSITE, Version 7.2 T<< Limit = 30 days 11/15/2024 09:55 Page 20 Probabilistic results summary : OCS_BFM-IR_Residential_DCGL_Eu154 File : C:\\RESRAD_FAMILY\\ONSITE\\7.2\\USERFILES\\BFM INST RELEASE - RESIDENTIAL\\EU154\\OC_BFM_IR_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 0.000E+00 1.561E-04 Fe-55 1RESRAD-ONSITE, Version 7.2 T<< Limit = 30 days 11/15/2024 10:06 Page 20 Probabilistic results summary : OCS_BFM-IR_Residential_DCGL_Fe55 File : C:\\RESRAD_FAMILY\\ONSITE\\7.2\\USERFILES\\BFM INST RELEASE - RESIDENTIAL\\FE55\\OC_BFM_IR_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 2.480E-06 H-3 1RESRAD-ONSITE, Version 7.2 T<< Limit = 30 days 11/15/2024 10:34 Page 20 Probabilistic results summary : OCS_BFM-IR_Residential_DCGL_H3 File : C:\\RESRAD_FAMILY\\ONSITE\\7.2\\USERFILES\\BFM INST RELEASE - RESIDENTIAL\\H3\\OC_BFM_IR_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 2.698E-04 Mn-54 1RESRAD-ONSITE, Version 7.2 T<< Limit = 30 days 11/15/2024 10:53 Page 20 Probabilistic results summary : OCS_BFM-IR_Residential_DCGL_Mn54 File : C:\\RESRAD_FAMILY\\ONSITE\\7.2\\USERFILES\\BFM INST RELEASE - RESIDENTIAL\\MN54\\OC_BFM_IR_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 1.620E-03 Nb-94 1RESRAD-ONSITE, Version 7.2 T<< Limit = 30 days 11/14/2024 13:27 Page 20 Probabilistic results summary : OCS_BFM-IR_DCGL Resdidential_Nb94 File : C:\\RESRAD_FAMILY\\ONSITE\\7.2\\USERFILES\\BFM INST RELEASE - RESIDENTIAL\\NB94\\BFM_IR_DCGL_RESIDENTIAL_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 1.000E+03 5.547E-02

RSCS TSD 25-091 Revision 0 26 BFM DCGLw/f Values Assuming Residential Scenario Without Drinking Water Ni-63 1RESRAD-ONSITE, Version 7.2 T<< Limit = 30 days 11/14/2024 13:49 Page 20 Probabilistic results summary : OCS_BFM-IR_Residential_DCGL - Ni63 File : C:\\RESRAD_FAMILY\\ONSITE\\7.2\\USERFILES\\BFM INST RELEASE - RESIDENTIAL\\NI63\\BFM_IR_DCGL_RESIDENTIAL_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 8.561E-05 Np-237 1RESRAD-ONSITE, Version 7.2 T<< Limit = 30 days 11/14/2024 14:03 Page 20 Probabilistic results summary : OCS_BFM-IR_Residential_DCGL - Np237 File : C:\\RESRAD_FAMILY\\ONSITE\\7.2\\USERFILES\\BFM INST RELEASE - RESIDENTIAL\\NP237\\BFM_IR_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 0.000E+00 4.413E-01 Pu-238 1RESRAD-ONSITE, Version 7.2 T<< Limit = 180 days 11/14/2024 15:40 Page 21 Probabilistic results summary : OCS_BFM-IR_Residential_DCGL-Pu238 File : C:\\RESRAD_FAMILY\\ONSITE\\7.2\\USERFILES\\BFM INST RELEASE - RESIDENTIAL\\PU238\\BFM_IR_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 8.377E+00 1.299E-01 Pu-239 1RESRAD-ONSITE, Version 7.2 T<< Limit = 30 days 11/15/2024 11:10 Page 20 Probabilistic results summary : OCS_BFM-IR_Residential_DCG_Pu239 File : C:\\RESRAD_FAMILY\\ONSITE\\7.2\\USERFILES\\BFM INST RELEASE - RESIDENTIAL\\PU239\\BFM_IR_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 1.093E+01 1.610E-01 Pu-240 1RESRAD-ONSITE, Version 7.2 T<< Limit = 30 days 11/15/2024 02:59 Page 21 Probabilistic results summary : OCS_BFM-IR_Residential_DCGL_Pu240 File : C:\\RESRAD_FAMILY\\ONSITE\\7.2\\USERFILES\\BFM INST RELEASE - RESIDENTIAL\\PU240\\BFM_IR_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 1.425E+01 1.556E-01 Pu-241 1RESRAD-ONSITE, Version 7.2 T<< Limit = 30 days 11/14/2024 18:22 Page 21 Probabilistic results summary : OCS_BFM-IR_Residential_DCGL_Pu241 File : C:\\RESRAD_FAMILY\\ONSITE\\7.2\\USERFILES\\BFM INST RELEASE - RESIDENTIAL\\PU241\\BFM_IR_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 3.775E+00 2.374E-03

RSCS TSD 25-091 Revision 0 27 BFM DCGLw/f Values Assuming Residential Scenario Without Drinking Water Sb-125 1RESRAD-ONSITE, Version 7.2 T<< Limit = 30 days 11/14/2024 14:36 Page 20 Probabilistic results summary : OCS_BFM-IR_Residential_DCGL_Sb125 File : C:\\RESRAD_FAMILY\\ONSITE\\7.2\\USERFILES\\BFM INST RELEASE - RESIDENTIAL\\SB125\\BFM_IR_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 2.749E-04 Sr-90 1RESRAD-ONSITE, Version 7.2 T<< Limit = 30 days 11/26/2024 13:02 Page 20 Probabilistic results summary : OCS_BFM-IR_Residential_DCGL_Sr90 File : C:\\RESRAD_FAMILY\\ONSITE\\7.2\\USERFILES\\BFM INST RELEASE - RESIDENTIAL\\SR90\\BFM_IR_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 0.000E+00 1.274E-01 Tc-99 1RESRAD-ONSITE, Version 7.2 T<< Limit = 30 days 11/14/2024 15:15 Page 20 Probabilistic results summary : OCS_BFM-IR_Residential_DCGL_Tc99 File : C:\\RESRAD_FAMILY\\ONSITE\\7.2\\USERFILES\\BFM INST RELEASE - RESIDENTIAL\\TC99\\BFM_IR_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 2.171E-02

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