ML24214A064
| ML24214A064 | |
| Person / Time | |
|---|---|
| Site: | Oyster Creek |
| Issue date: | 03/06/2024 |
| From: | Bisson J BHI Energy, Holtec Decommissioning International |
| To: | Office of Nuclear Reactor Regulation |
| Shared Package | |
| ML24214A209 | List: |
| References | |
| HDI-OC-24-018 ENG-OCS-015, Rev 1 | |
| Download: ML24214A064 (1) | |
Text
@Westinghouse
- BHI energy ENGINEERING CALCULATION
Basement Fill Model:
Calculation of Embedded Pipe DCGL Values
Oyster Creek Station ENG-OC S-015 Revision: 1 March 6, 2024
Prepared by:
BHI Energy 97 Libbey Industrial Pkwy Weymouth, MA
Prepared by
Approved by
BHI Energy ENG-OCS -015 BFM: Calculation of Embedded Pipe DCGL Values Rev. 1
1.0 PURPOSE This calculation documents the development of Basement Fill Model (BFM) derived concentration guideline levels values for embedded pipes (DCGLep) applying the exposure pathways assumed for the Industrial Use (IU) scenario to support the assessment of below-grade concrete foundations.
2.0 APPLICABILITY This calculation addresses only the development of BFM DCGL ep values for below grade concrete foundations at the Oyster Creek site.
3.0 REFERENCES
3.1 ENG-AP -02, Verification of Software Operability 3.2 ANL/EVS/TM-18/1, RESRAD-Onsite 7.2 Users Guide, April 2018 3.3 ENG-OCS -01 4, Basement Fill Model: Probabilistic Analysis for Embedded Pipes Scenario, Rev. 0 3.4 Radionuclide Selection for DCGL Development-Oyster Creek Station Site Characterization Project, January 2022 3.5 ENG-OCS -012, Basement Fill Model: Probabilistic Analysis for Instantaneous Release Scenario Assuming Industrial Use Exposure Pathways, Rev. 0.
3.6 Oyster Creek Station Historical Site Assessment, Rev. 2, November 2021 3.7 Hydrogeologic Investigation Report , GHD, January 2017
4.0 DISCUSSION The operability of the RESRAD-Onsite 7.2 computer code was verified on each computer used for code executions in accordance with BHI Energy Engineering procedure ENG -AP-02, Verification of Software Operability [3. 1]. The RESRAD-Onsite 7.2 Users Guide [3. 2] was used as a reference for code use.
RESRAD-Onsite code executions were performed for each ROC identified for the OCS site. The probabilistic module of RESRAD-Onsite software was used to compute a peak of the mean (POM) dose, which was used to determine the DCGL values corresponding to the NRC dose criteria established in 10CFR20.1403 (i.e., 25 mrem/y). The DCGL value for each ROC was calculated as follows:
DCGL(pCi/m2) = (25 mrem/y)÷[(POM dose (mrem/y per pCi/g) *(fill concentration, pCi/g per 1 pCi/m2)].
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 residua l contamination. The configuration of CZ is shown in Figure 1.
Page 1 BHI Energy ENG-OCS -015 BFM: Calculation of Embedded Pipe DCGL Values Rev. 1
Conceptual Model for E mbedded Pipe D CGLs
- 0. 91m fill (site cap - sand)
UZ: assumed clean basement fill material (sand) (average depth to GW4.42m)
- 6. 9m
SZ: assumed clean basement fill material (sand)
1m CZ = su m CV of a ll 3 b ld g floor a rea s (100% in SZ); CV = 6355m3
<--------------------------------------------------- 90m (= LPAF) ----------------------------------------------------> 1 Figure 1: Conceptual Configuration of C V for Embedded Pipes (note: not to scale)
IU Scenario and Exposure Pathways The Industrial Use Scenario assumes that the average member of the critical group is a hypothetical full-time industrial site worker assigned outdoor tasks and who also catches and consumes fish from the intake/discharge canal during off -hours. The pathways used to estimate human radiation exposure resulting from residual radioactivity in the soil for this scenario are:
- Direct external radiation exposure pathway
- Inhalation exposure pathway
- Ingestion exposure via aquatic food from the intake/discharge canal
- Inadvertent ingestion of contaminated soil
Accordingly, the DCGLep values address the exposure pathways listed above. Input for these calculations include the reasonably conservative input values for RESRAD parameters identified as sensitive in Calculation ENG-OCS-0014 [3.3].
Radionuclide-of -concern (ROC)
Page 2 BHI Energy ENG-OCS -015 BFM: Calculation of Embedded Pipe DCGL Values Rev. 1
A site-specific suite of potential ROCs has been identified for the OCS site [3. 4]. OCS ROCs are listed in Table 1.
NOTE: RESRAD-Onsite 7.2 automatically accounts for progeny radionuclides with input for several of the OCS ROCs. Progeny radionuclides are also listed in Table 1. Table 1: Potential Radionuclides-of -
Concern Identified for the OCS Site ROCa Progenyb ROCa Progenyb Am-241 Np-237, Th-229, U-233 Nb-94 ---
Cm-243 Ac-227, Am-243, Pa-231, Np-237 Th-229, U-233 Pu-239, U-235 Cm-244 Pu-240, Ra-228, Th-228, Pu-238 Pb-210, Po-210, Ra-226, Th-232, U-236 Th-230, U-234 Cs-137 --- Pu-239 Ac-227, Pa-231, U-235 Co-60 --- Pu-240 Ra-228, Th-228, Th-232, U-236 Eu-152 Gd-152 Pu-241 Am-241, Np-237, Th-229, U-233 Eu-154 --- Sb-125 Te-125m Fe-55 --- Sr-90 ---
Mn-54 ---
a ROC = radionuclide-of -concern identified for the OCS site.
b Included automatically with input of parent ROC.
5.0 CALCULATIONS
5.1 The CV was calculated using the floor dimensions for the RB, TB, and ORB in Holtec-00045 Calc -
001. The floor areas (m2) are multiplied by 1m to obtain the total volume of fill material immediately adjacent at 1m to the floor surface and summed. Table 1 shows these calculations.
Unit conversion factor: 10.7639 ft2 = 1m2.
Table 2. Contaminated Volume Calculations Building Area (ft2)* Area (m2) Volume (m3)
ORB 3519.6 327.0 327.0 RB 17424 1618.7 1618.7 TB 47464 4409.6 4409.6 Total CA 68407.6 6355.3 6355.3
- Building dimensions from Holtec-0045 Calc-001
CV (m 3) = (floor surface areas , m2) x (1m adjacent fill).
5.2 The cover above the CV consists of the planned 3ft site cap plus the unsaturated zone (UZ) and a portion of the saturated zone (SZ). Figure 1 shows the relationship of these components of the cover. The cover thickness was determined using the area- weighting approach shown below:
Site cap = 3 ft, or 0.91m (site soil - sand)
Below-grade wall height s from Holtec-0045 Calc -001 :
ORB = 14.4 ft = 4.4m; RB = 43 ft = 13.1m; TB = 20.5 ft = 6.25m
Page 3 BHI Energy ENG-OCS -015 BFM: Calculation of Embedded Pipe DCGL Values Rev. 1
Total cover thickness above ORB CV = 4.4m - 1m + 0.91m = 4.3m Total cover thickness above RB CV = 13.1m - 1m + 0.91m = 13m Total cover thickness above T B CV = 6.25m - 1m + 0.91m = 6.2m Fractions of total area:
ORB: 327m2/6355.3m2 = 0.05; RB: 1618.7m2/6355.3m2 = 0.25; TB: 4409.6m 2/6355.3m2 = 0.69 Area- weighted cover thickness:
ORB: (0.05)(4.3m) = 0.22m RB: (0.25)(13m) = 3.32m TB: (0.69)(6.2m) = 4.27m Total = 7.81m
5.3 The CZ area and length parallel to aquifer flow (LPAF, a RESRAD-Onsite input parameter) are calculated from the CV, assuming a disk configuration with a thickness equal to 1m.
CZ Area (m2) = CV (m3)÷CVh (m) = r 2 6355.3 m 3÷1 m = r2 6355.3 m 2 = r2 = CZ area 2022.95 m 2 = r2 44.98m = r, and 2r = diameter = 89.95 m, rounded to 90m = LPAF
5.4 Fraction of CV in the saturated zone (SZ) = 1.0 (CV covered by 7.81m site soil, which places it below the average groundwater depth of 4.42m [3.5]).
5.5 Sand is assumed as soil type for cover and fill material (consistent with soil type assumed in calculations for surface soil DCGL values and supported by information provided in the 2017 Hydrogeologic Investigation Report [3.7], the OCS HSA [ 3.6], and well installation logs).
Distributions for Kd values, density, porosity, field capacity, and RESRAD b parameter for sand are taken from NURREG/CR-7267 and are applied in the probabilistic analyses.
5.6 Table 3 summarizes the input values/distribution and the reference source for each input parameter.
6.0 RESULTS
6.1 The calculated POM dose for each ROC is provided in column 2 of Table 4. The calculated POM doses from the RESRAD- Onsite 7.2 output reports are provided by ROC in Attachment 1.
6.2 Concentration in fill (Cf) in pCi/g per initial surface contamination = 1 pCi/m2:
Pipe internal areaby buil ding:
RB = 1107.8 ft 2 = 102.9 m2 (source: HOLTEC-00064 Calc-001)
TB = 3425.4 ft2 = 318.2 m2 (source: HOLTEC-00041 Calc-001 rev 1)
ORB = 532.2 ft 2 = 49.2 m2 (source: HOLTEC-00064 Calc -001)
Total = 470.6 m 2
Cf = (initial pipe contamination) (pipe SA)÷ (floor SA)(CV thickness)(soil density)(unit CF)
= (pCi/m 2)(m2)÷(m2)(m)(g/cm3)(10 6cm3/m3) = p Ci/g
= (1)(470.6) ÷(6355.3)(1)(1.5105)(10 6) = 4.9E-08 pCi/g.
Note: the median value for the sand density distribution from NUREG/CR -7267 is assumed as the value for soil density.
Page 4 BHI Energy ENG-OCS -015 BFM: Calculation of Embedded Pipe DCGL Values Rev. 1
6.3 Column 3 of Table 4 provides the DCGL values corresponding to an annual dose equal to 25 mrem .
The DCGL for each ROC was calculated from the POM dose using the following relationship:
DCGL(pCi/m2) = (25 mrem/y)÷(POM mrem/y per 1 pCi/g) *(Cf, pCi/g per 1 pCi/m2)
Page 5 BHI Energy ENG-OCS -015 BFM: Calculation of Embedded Pipe DCGL Values Rev. 1
Table 3. Input Values for RESRAD- Onsite Parameters
Input Values for DCGL Calculations: OC BFM Embedded Pipe Scenario to Support the Industrial Use Compliance Scenario RESRAD Exposure Pathways External Gamma Open Inhalation Open Plant Ingestion Close Meat Ingestion Close Milk Ingestion Close Aquatic Foods Open Drinking Water Close Soil Ingestion Open Radon Close Distribution's Statistical Median/
Parameter (unit) Typea Priorityb Treatmentc Value/Distribution Basis Parametersd Mean 1 2 3 4 Soil Concentrations Basic radiation dose P 3 D 25 10 CFR 20.1402 NR NR NR NR limit (mrem/y)
Initial principal P 2 D 1 Unit Value NR NR NR NR radionuclide (pCi/g)
Distribution coefficient, kd (values/distributions for sand soil type; assigned to contaminated zone (CZ) and saturated zone (SZ) (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 (CZ, SZ) 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 (CZ, SZ) 25th percentile value Cm-243 P 1 D 5.74E+02 (CZ) 25th percentile value
S Truncated lognormal-n ANL/EVS/TM-14/4 8.13 2.64 0.001 0.999 3400 (SZ)
Cm-244 P 1 D 5.74E+02 (CZ) 25th percentile value
S Truncated lognormal-n ANL/EVS/TM-14/4 8.13 2.64 0.001 0.999 3400 (SZ)
Co-60 P 1 D 3.71E+01 (CZ, SZ) 25th percentile value Cs-137 P 1 D 1.58E+02 (CZ, SZ) 25th percentile value
Eu-152 P 1 D 6.40E+01 (CZ, SZ) 25th percentile value Eu-154 P 1 D 6.40E+01 (CZ, SZ) 25th percentile value Fe-55 P 1 S Truncated lognormal-n ANL/EVS/TM-14/4 5.77 0 0.001 0.999 320 Gd-152 P 1 S Truncated lognormal-n NUREG/CR-7267 1.61 3.22 0.001 0.999 5 H-3 P 1 D 4.30E-03 (CZ)
S Truncated lognormal-n NUREG/CR-7267 -2.81 0.5 0.001 0.999 0.06 (SZ)
Mn-54 P 1 D 1.66E+02 (CZ, SZ) 25th percentile value Nb-94 P 1 D 5.86E+02 (CZ, SZ) 25th percentile value Ni-63 P 1 D 2.77E+01 (CZ, SZ) 25th percentile value Np-237 P 1 D 5.49E+00 (CZ, SZ) 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
Page 6 BHI Energy ENG-OCS -015 BFM: Calculation of Embedded Pipe DCGL Values Rev. 1
Input Values for DCGL Calculations: OC BFM Embedded Pipe Scenario to Support the Industrial Use Compliance Scenario Pu-238 P 1 D 1.56E+02 (CZ, SZ) 25th percentile value Pu-239 P 1 D 1.56E+02 (CZ, SZ) 25th percentile value Pu-240 P 1 D 1.56E+02 (CZ, SZ) 25th percentile value Pu-241 P 1 D 1.57E+02 (CZ, SZ) 25th percentile value
Ra-226 P 1 S Truncated lognormal-n ANL/EVS/TM-14/4 8.04 2.08 0.001 0.999 3100 Ra-228 P 1 S Truncated lognormal-n ANL/EVS/TM-14/4 8.04 2.08 0.001 0.999 3100 Sb-125 P 1 D 5.07E+00 (CZ, SZ) 25th percentile value Sr-90 P 1 D 6.58E+00 (CZ, SZ) 25th percentile value
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 S Truncated lognormal-n NUREG/CR-7267 6.31 3.22 0.001 0.999 550 (CZ)
4.79E+03 (SZ) 75th percentile value Th-228 P 1 S Truncated lognormal-n ANL/EVS/TM-14/4 6.55 2.4 0.001 0.999 700 Th-229 P 1 S Truncated lognormal - n ANL/EVS/TM - 14/4 6.55 2.4 0.001 0.999 700 Th - 230 P 1 S Truncated lognormal -n ANL/EVS/TM-14/4 6.55 2.4 0.001 0.999 700 Th - 232 P 1 S Truncated lognormal -n ANL/EVS/TM-14/4 6.55 2.4 0.001 0.999 700 U - 233 P 1 S Truncated lognormal - n ANL/EVS/TM - 14/4 4.7 2.48 0.001 0.999 110 U - 234 P 1 S Truncated lognormal - n ANL/EVS/TM - 14/4 4.7 2.48 0.001 0.999 110 U - 235 P 1 S Truncated lognormal -n ANL/EVS/TM-14/4 4.7 2.48 0.001 0.999 110 U - 236 P 1 S Truncated lognormal -n ANL/EVS/TM-14/4 4.7 2.48 0.001 0.999 110 Initial concentration P 3 D 0 Ground water NR NR NR NR of radionuclides uncontaminated present in groundwater (pCi/l)
Calculation Times Time since placement P 3 D 0 NR NR NR NR of material (y)
Time for calculations P 3 D 0, 1, 3, 10, 30, 100, 300, RESRAD Default NR NR NR NR (y) 1000 Contaminated Zone Area of contaminated P 2 D 6355.3 Combined CV from RB, NR NR NR NR zone (m 2) TB, and ORB.
Thickness of P 2 D 1.0 Scenario assumption. NR NR NR NR contaminated zone (m)
Length parallel to P 2 D 90 Set to diameter of CZ. NR NR NR NR aquifer flow (m)
Does the initial contamination penetrate the water table? Yes Based on site features and RB dimensions.
Contaminated fraction below water table D 1.0 Entire CV assumed in SZ NR NR NR NR Cover and Contaminated Zone Hydrological Data Cover depth (m) P 2 D 7.81 Area-weighted value for NR NR NR NR bldg. wall heights.
Cover density (g/cm3) P 2 S Truncated Normal Site soil type = sand ( 2017 1.5105 0.159 0.001 0.999 1.5105 Hydrogeologic Investigation Report).
Input for density of fill material = NUREG/CR-7267 density distribution for site soil type - sand.
Page 7 BHI Energy ENG-OCS -015 BFM: Calculation of Embedded Pipe DCGL Values Rev. 1
Input Values for DCGL Calculations: OC BFM Embedded Pipe Scenario to Support the Industrial Use Compliance Scenario Cover erosion rate P 2 D 6E-04 Assumed final site grade is NR NR NR NR (m/y) level. Input for erosion rate = NUREG/CR- 7267 erosion rate for site with shallow slope (i.e.,
relatively level)
Density of P 1 S Truncated Normal (all Site soil type = sand (2017 1.5105 0.159 0.001 0.999 1.5105 contaminated zone ROCs except H- 3) Hydrogeologic (g/cm3) Investigation Report).
Input for density of fill material = NUREG/CR-7267 density distribution for site soil type - sand.
D 1.62E+00 (H -3) 75th percentile value
Contaminated zone P 2 D 6E-04 Assumed same as cover. NR NR NR NR erosion rate (m/y)
Contaminated zone P 2 S Bounded Normal NUREG/CR-7267 0.43 0.06 0.2446 0.6154 0.43 total porosity distribution for site soil type -sand Contaminated zone P 3 D 0.18 Value based on site- NR NR NR NR field capacity specific soil type (sand);
calculated using equation in NUREG/CR-7267 Contaminated zone P 2 D 2741 2017 Hydrogeologic NR NR NR NR hydraulic Investigation Report conductivity (m/y)
Contaminated zone b P 2 S Bounded NUREG/CR-7267 - 0.0253 0.216 0.501 1.90 0.975 parameter Log Normal n distribution for site soil type - sand Humidity in air P 3 D 6.6 From Regional and Site-NR NR NR NR (g/m3) Specific Absolute Humidity Data for Use in Tritium Dose Calculations.
Evapotranspiration P 2 S Uniform (all ROCs except NUREG/CR-7267 0.5 0.75 NR NR 0.625 coefficient H-3) distribution
D 6.87E-01 (H-3) 75th percentile value Average annual wind P 2 D 3.13 Internet search: NR NR NR NR speed (m/s) https://www.windfinder.co m/windstatistics/oyster_cre ek_barnegat_bay Precipitation (m/y) P 2 D 1.4 Annual Report on the NR NR NR NR Meteological Program at Oyster Creek Generating Station - average annual precipitation for 2015 through 2020 Irrigation (m/y) B 3 S Uniform Distribution determined 0 0.08 0.04 using methodology described in Data Collection Handbook and NUREG/CR-6697 Irrigation mode B 3 D Overhead Overhead irrigation is NR NR NR NR common practice for crops in U.S.
Runoff coefficient P 2 D 0.2 Value determined using NR NR NR NR methodology described in Data Collection Handbook and NUREG/CR-7267
Page 8 BHI Energy ENG-OCS -015 BFM: Calculation of Embedded Pipe DCGL Values Rev. 1
Input Values for DCGL Calculations: OC BFM Embedded Pipe Scenario to Support the Industrial Use Compliance Scenario Watershed area for P 3 D 1.01E+08 NJ- GeoWeb (NJDEP NR NR NR NR nearby stream or BGIS) pond (m2)
Accuracy for - 3 D 1.00E-03 RESRAD Default NR NR NR NR water/soil computations Saturated Zone Hydrological Data Density of saturated P 1 S Truncated Normal NUREG/CR-7267 1.5105 0.159 0.001 0.999 1.5105 zone (g/cm 3) distribution for site soil type -sand Saturated zone total P 1 S Truncated Normal NUREG/CR-7267 0.43 0.06 0.001 0.999 0.43 porosity distribution for site soil type -sand Saturated zone P 1 D 0.25 2017 Hydrogeologic NR NR NR NR effective porosity Investigation Report Saturated zone field P 3 D 0.18 Value based on site- NR NR NR NR capacity specific soil type (sand);
calculated using equation in NUREG/CR-7267 Saturated zone P 1 D 2741 2017 Hydrogeologic NR NR NR NR hydraulic Investigation Report conductivity (m/y)
Saturated zone P 2 D 3.25E-02 (all ROCs except 75th percentile value hydraulic gradient H-3 and Tc-99)
D 1.75E-02 (H-3) 25th percentile value
S Uniform (Tc-99) 2017 Hydrogeologic 0.01 0.04 0.025 Investigation Report Saturated zone b P 2 S Bounded NUREG/CR-7267 - 0.0253 0.216 0.501 1.90 0.975 parameter Log Normal n distribution for site soil type - sand Water table drop rate P 3 D 0 CZ in SZ NR NR NR NR (m/y)
Well pump intake P 2 D 4.42 Set to the distance from the NR NR NR NR depth (m below water water table to the lower table) boundary of contamination in the aquifer at the downgradient edge of the contaminated zone. NOTE:
no impact for IU scenario.
Model: P 3 D ND ND model recommended NR NR NR NR Nondispersion (ND) for contaminant areas or Mass-Balance >1,000 m2 (MB)
Well pumping rate P 2 S Uniform Min, and max value based 407 567 487 (m3/y) on site irrigation and general case parameter values presented in NUREG/CR-7267.
Unsaturated Zone Hydrological Data Number of P 3 D 0 UZ above CZ and is NR NR NR NR unsaturated zone assumed part of cover.
strata Unsat. zone 1, P 1 D N/A Input not required when thickness (m) number of UZ = 0.
Unsat. zone 1, soil P 2 S N/A Input not required when density (g/cm3) number of UZ = 0.
Unsat. zone 1, total P 2 S N/A Input not required when porosity number of UZ = 0.
Unsat. zone 1, P 2 D N/A Input not required when effective porosity number of UZ = 0.
Page 9 BHI Energy ENG-OCS -015 BFM: Calculation of Embedded Pipe DCGL Values Rev. 1
Input Values for DCGL Calculations: OC BFM Embedded Pipe Scenario to Support the Industrial Use Compliance Scenario Unsat. zone 1, field P 3 D N/A Input not required when capacity number of UZ = 0.
Unsat. zone 1, P 2 D N/A Input not required when hydraulic number of UZ = 0.
conductivity (m/y)
Unsat. zone 1, soil- P 2 S N/A Input not required when specific b parameter number of UZ = 0.
Occupancy Inhalation rate (m3/y) B 3 D 8400 NUREG/CR-7267 NR NR NR NR
Mass loading for P 2 S Continuous linear NUREG/CR-7267 2.3E-5 inhalation (g/m3)
Exposure duration B 3 D 30 RESRAD Default NR NR NR NR Indoor dust filtration P 2 S Uniform NUREG/CR-7267 0.15 0.95 0.55 factor Shielding factor, P 2 S Bounded lognormal-n NUREG/CR-7267 -1.3 0.59 0.044 1 0.2725 external gamma Fraction of time spent B 3 D 0.03 Fraction of calendar year NR NR NR NR indoors assuming 1h/work day for daily work breaks Fraction of time spent B 3 D 0.2 Fraction of calendar year NR NR NR NR outdoors assuming 7h/work day for outside tasks Shape factor flag, P 3 D Circular Circular contaminated zone NR NR NR NR external gamma assumed Ingestion, Dietary Fruits, vegetables, B 2 D N/A Input not required - plant NR NR NR NR grain consumption ingestion pathway inactive (kg/y)
Leafy vegetable B 3 D N/A Input not required - plant NR NR NR NR consumption (kg/y) ingestion pathway inactive Milk consumption B 2 D N/A Input not required - milk NR NR NR NR (L/y) ingestion pathway inactive Meat and poultry B 3 D N/A Input not required - meat NR NR NR NR consumption (kg/y) ingestion pathway inactive Fish consumption B 3 D 20.6 NUREG/CR-5512, Vol. 3 NR NR NR NR (kg/y)
Other seafood B 3 D 0.9 RESRAD Default NR NR NR NR consumption (kg/y)
Soil ingestion rate B 2 D Triangular NUREG/CR-7267 NR NR NR NR (g/yr)
Drinking water intake B 2 D N/A Input not required - NR NR NR NR (L/y) drinking water pathway inactive Contamination P 3 D N/A Input not required - NR NR NR NR fraction of drinking drinking water pathway water inactive Contamination P 3 N/A Input not required - water fraction of household pathway inactive water Contamination P 3 D N/A Input not required - NR NR NR NR fraction of livestock drinking water/ingestion water pathways inactive Contamination P 3 D N/A Input not required - plant NR NR NR NR fraction of irrigation ingestion pathway inactive water Contamination P 2 D 6.09E-01 (all ROCs) 75th percentile value fraction of aquatic food Contamination P 3 D N/A Input not required - plant NR NR NR NR fraction of plant food ingestion pathway inactive Page 10 BHI Energy ENG-OCS -015 BFM: Calculation of Embedded Pipe DCGL Values Rev. 1
Input Values for DCGL Calculations: OC BFM Embedded Pipe Scenario to Support the Industrial Use Compliance Scenario Contamination P 3 D N/A Input not required - meat NR NR NR NR fraction of meat ingestion pathway inactive Contamination P 3 D N/A Input not required - milk NR NR NR NR fraction of milk ingestion pathway inactive Ingestion, Non-Dietary Livestock fodder M 3 D N/A Input not required - meat NR NR NR NR intake for meat (kg/d) ingestion pathway inactive Livestock fodder M 3 D N/A Input not required - milk NR NR NR NR intake for milk (kg/d) ingestion pathway inactive Livestock water M 3 D N/A Input not required - water NR NR NR NR intake for meat (L/d) ingestion pathway inactive Livestock water M 3 D N/A Input not required - milk NR NR NR NR intake for milk (L/d) ingestion pathway inactive Livestock soil intake M 3 D N/A Input not required - meat NR NR NR NR (kg/d) ingestion pathway inactive Mass loading for P 3 D N/A Input not required - plant NR NR NR NR foliar deposition ingestion pathway inactive (g/m3)
Depth of soil mixing P 2 S Triangular NUREG/CR-7267 0 0.15 0.6 0.23 layer (m)
Depth of roots (m) P 1 S N/A Input not required - plant 0.3 4 1.85 ingestion pathway inactive Drinking water P 3 D N/A Input not required - NR NR NR NR fraction from ground drinking water ingestion water pathway inactive Household water P 3 N/A Input not required -
fraction from ground drinking water pathway water inactive Livestock water P 3 D N/A Input not required - NR NR NR NR fraction from ground drinking water/meat water ingestion pathways inactive Irrigation fraction P 3 D N/A Input not required - NR NR NR NR from ground water drinking water pathway inactive Wet weight crop P 2 S N/A Input not required - plant 0.56 0.48 0.001 0.999 1.75 yield for Non-Leafy ingestion pathway inactive (kg/m2)
Wet weight crop P 3 D N/A Input not required - plant NR NR NR NR yield for Leafy ingestion pathway inactive (kg/m2)
Wet weight crop P 3 D N/A Input not required - meat NR NR NR NR yield for Fodder ingestion pathway inactive (kg/m2)
Growing Season for P 3 D N/A Input not required - plant NR NR NR NR Non-Leafy (y) ingestion pathway inactive Growing Season for P 3 D N/A Input not required - plant NR NR NR NR Leafy (y) ingestion pathway inactive Growing Season for P 3 D N/A Input not required - meat NR NR NR NR Fodder (y) ingestion pathway inactive Translocation Factor P 3 D N/A Input not required - plant NR NR NR NR for Non-Leafy ingestion pathway inactive Translocation Factor P 3 D N/A Input not required - plant NR NR NR NR for Leafy ingestion pathway inactive Translocation Factor P 3 D N/A Input not required - meat NR NR NR NR for Fodder ingestion pathway inactive Weathering Removal P 2 S N/A Input not required - plant 5.1 18 84 33 Constant for ingestion pathway inactive Vegetation (1/y)
Page 11 BHI Energy ENG-OCS -015 BFM: Calculation of Embedded Pipe DCGL Values Rev. 1
Input Values for DCGL Calculations: OC BFM Embedded Pipe Scenario to Support the Industrial Use Compliance Scenario Wet Foliar P 3 D N/A Input not required - plant NR NR NR NR Interception Fraction ingestion pathway inactive for Non-Leafy Wet Foliar P 2 S N/A Input not required - plant 0.06 0.67 0.95 0.58 Interception Fraction ingestion pathway inactive for Leafy Wet Foliar P 3 D N/A Input not required - meat NR NR NR NR Interception Fraction ingestion pathway inactive for Fodder Dry Foliar P 3 D N/A Input not required - plant NR NR NR NR Interception Fraction ingestion pathway inactive for Non-Leafy Dry Foliar P 3 D N/A Input not required - plant NR NR NR NR Interception Fraction ingestion pathway inactive for Leafy Dry Foliar P 3 D N/A Input not required - meat NR NR NR NR Interception Fraction ingestion pathway inactive for Fodder Storage times of contaminated foodstuffs (days):
Fruits, non-leafy B 3 D N/A Input not required - plant NR NR NR NR vegetables, and grain ingestion pathway inactive Leafy vegetables B 3 D N/A Input not required - plant NR NR NR NR ingestion pathway inactive Milk B 3 D N/A Input not required - milk NR NR NR NR ingestion pathway inactive Meat and poultry B 3 D N/A Input not required - meat NR NR NR NR ingestion pathway inactive Fish B 3 D 7 RESRAD Default NR NR NR NR Crustacea and B 3 D 7 RESRAD Default NR NR NR NR mollusks Well water B 3 D N/A Input not required - NR NR NR NR drinking water pathway inactive Surface water B 3 D N/A Input not required drinking NR NR NR NR water pathway inactive Livestock fodder B 3 D N/A Input not required - meat NR NR NR NR ingestion pathway inactive Special Radionuclides (C-14)
C-12 concentration P 3 D 2.00E-05 RESRAD Default NR NR NR NR in water (g/cm3)
C-12 concentration P 3 D 3.00E-02 RESRAD Default NR NR NR NR in contaminated soil (g/g)
Fraction of P 3 D 2.00E-02 RESRAD Default NR NR NR NR vegetation carbon from soil Fraction of P 3 D 9.80E-01 RESRAD Default NR NR NR NR vegetation carbon from air C-14 evasion layer P 2 S Triangular NUREG/CR-7267 0.2 0.3 0.6 0.3 thickness in soil (m)
C-14 evasion flux P 3 D 7.00E-07 RESRAD Default NR NR NR NR rate from soil (1/s)
C-12 evasion flux P 3 D 1.00E-10 RESRAD Default NR NR NR NR rate from soil (1/s)
Fraction of grain in B 3 D 0.2500 NUREG/CR-7267 NR NR NR NR beef cattle feed Fraction of grain in B 3 D 0.1000 NUREG/CR-7267 NR NR NR NR milk cow feed Inhalation Dose Conversion Factors (mrem/pCi inhaled) from FGR11 (contained in RESRAD Dose Conversion Library)
Page 12 BHI Energy ENG-OCS -015 BFM: Calculation of Embedded Pipe DCGL Values Rev. 1
Input Values for DCGL Calculations: OC BFM Embedded Pipe Scenario to Support the Industrial Use Compliance Scenario Ingestion Dose Conversion Factors (mrem/pCi ingested) from FGR11 (contained in RESRAD Dose Conversion Library)
Plant Transfer Factors (pCi/g plant)/(pCi/g soil)
Note: Plant ingestion pathway closed - input for plant transfer factors not required for Industrial Use dose calculations.
Meat Transfer Factors (pCi/kg)/(pCi/d)
Note: Meat ingestion pathway closed - input for meat transfer factors not required for Industrial Use dose calculations.
Milk Transfer Factors (pCi/L)/(pCi/d)
Note: Milk ingestion pathway closed - input for milk transfer factors not required for Industrial Use dose calculations.
Bioaccumulation (Transfer) 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 D 5.14E+02 75th percentile value
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 D 1.35E+02 75th percentile value Cs-137 P 2 D 4.48E+03 75th percentile value
Eu-152 P 2 D 3.95E+02 75th percentile value Eu-154 P 2 D 3.95E+02 75th percentile value Fe-55 P 2 D 5.90E+02 75th percentile value
Gd-152 P 2 S Lognormal-n NUREG/CR-7267 3.4 1.1 3.0E+01 H-3 P 2 D 1.07E+00 75th percentile value Mn-54 P 2 S Lognormal-n NUREG/CR-7267 5.5 1.9 2.4E+02 Nb-94 P 2 D 6.27E+02 75th percentile value
Ni-63 P 2 D 3.01E+01 75th percentile value Np-237 P 2 D 4.21E+01 75th percentile value 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 D 4.32E+04 75th percentile value
Pu-239 P 2 D 4.32E+04 75th percentile value Pu-240 P 2 D 4.32E+04 75th percentile value Pu-241 P 2 D 4.32E+04 75th percentile value
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 D 1.00E+02 75th percentile value Sr-90 P 2 D 7.72E+00 75th percentile value
Tc-99 P 2 D 4.21E+01 75th percentile value 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 Page 13 BHI Energy ENG-OCS -015 BFM: Calculation of Embedded Pipe DCGL Values Rev. 1
Input Values for DCGL Calculations: OC BFM Embedded Pipe Scenario to Support the Industrial Use Compliance Scenario Number of points 32 RESRAD Default NR NR NR NR Spacing log RESRAD Default NR NR NR NR Time integration parameters Maximum number of 17 RESRAD Default NR NR NR NR points for dose Table 3 Notes:
a P = physical, B = behavioral, M = metabolic b 1 = high-priority parameter, 2 = medium -priority parameter, 3 = low -priority parameter c D = deterministic, S = stochastic d Distributions Statistical Parameters:
Lognormal-n: 1= mean, 2 = standard deviation Bounded lognormal -n: 1= mean, 2 = standard deviation, 3 = minimum, 4 = maximum Truncated lognormal-n: 1= mean, 2 = standard deviation, 3 = lower quantile, 4 = upper quantile Bounded normal: 1 = mean, 2 = standard deviation, 3 = minimum, 4 = maximum Triangular: 1 = minimum, 2 = mode, 3 = maximum Uniform: 1 = minimum, 2 = maximum NR = not required
Page 14 BHI Energy ENG-OCS -015 BFM: Calculation of Embedded Pipe DCGL Values Rev. 1
Table 4: DCGL ep Values by Radionuclide
Peak of Mean DCGLep ROC Dose (mrem/y) (pCi/m2)
Am-241 2.52E-03 2.02E+11 C-14 1.42E-01 3.59E+09 Cm-243 5.04E-04 1.01E+12 Cm-244 1.22E-03 4.18E+11 Co-60 6.42E-06 7.94E+13 Cs-137 1.15E-04 4.43E+12 Eu-152 3.86E-06 1.32E+14 Eu-154 3.94E-06 1.29E+14 Fe-55 5.53E-09 9.22E+16 H-3 7.40E-08 6.89E+15 Mn-54 2.11E-07 2.42E+15 Nb-94 3.52E-06 1.45E+14 Ni-63 2.79E-07 1.83E+15 NP-237 2.13E-02 2.39E+10 Pu-238 1.75E-01 2.91E+09 Pu-239 4.53E-01 1.13E+09 Pu-240 4.49E-01 1.14E+09 Pu-241 1.15E-05 4.43E+13 SB-125 9.87E-06 5.17E+13 Sr-90 1.10E-04 4.64E+12 Tc-99 4.97E-05 1.03E+13
NOTE: Review of the RESRAD reports shows that the POM doses are delivered solely through the aquatic food ingestion pathway. The contributions to total dose via the direct, inhalation, and inadvertent soil ingestion pathways are shown as zeros in the RESRAD reports. These small doses via the aquatic food pathway are likely over-estimations for doses that may be received by a person who ingests fish from the OC canal due primarily to (i) the conservative input for the contaminated fraction of aquatic food (0.609 vs 0.39 distribution mode) and fish transfer factors (75 th percentile values in sensitive ROCs distribution) and (ii) RESRAD modeling for the fish ingestion pathway (models a pond/lake, not a flowing canal) .
Page 15 BHI Energy ENG-OCS -015 BFM: Calculation of Embedded Pipe DCGL Values Rev. 1
Attachment 1
RESRAD- Onsite Results: Peak of the Mean Dose s
Page 16 BHI Energy ENG-OCS -015 BFM: Calculation of Embedded Pipe DCGL Values Rev. 1
Am-241 Results:
RESRAD-ONSITE, Version 7.2 T<< Limit = 30 days 01/08/2024 13:07 Page 20 Probabilistic results summary : OCS BFM_Industrial Use_IR_EP_DCGL_Am241 File : C:\\RESRAD_FAMILY\\ONSITE\\7.2\\USERFILES\\OYSTER CREEK\\INDUSTRIAL\\BFM EMBEDDED PIPE\\BILL\\AM241\\BFM-IU-EP_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 2.031E+02 2.517E-03
C-14 Results:
RESRAD-ONSITE, Version 7.2 T<< Limit = 30 days 01/09/2024 14:39 Page 20 Probabilistic results summary : OCS BFM_Industrial Use_IR_EP_DCGL_C14 File : C:\\RESRAD_FAMILY\\ONSITE\\7.2\\USERFILES\\OYSTER CREEK\\INDUSTRIAL\\BFM EMBEDDED PIPE\\BILL\\C14\\BFM-IU-EP_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 4.924E+00 1.422E-01
Cm-243 Results:
RESRAD-ONSITE, Version 7.2 T<< Limit = 30 days 01/08/2024 15:03 Page 20 Probabilistic results summary : OCS BFM_Industrial Use_IR_EP_DCGL_Cm243 File : C:\\RESRAD_FAMILY\\ONSITE\\7.2\\USERFILES\\OYSTER CREEK\\INDUSTRIAL\\BFM EMBEDDED PIPE\\BILL\\CM243\\BFM-IU-EP_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 1.557E+02 5.040E-04
Cm-244 Results:
RESRAD-ONSITE, Version 7.2 T<< Limit = 30 days 01/09/2024 06:04 Page 20 Probabilistic results summary : OCS BFM_Industrial Use_IR_EP_DCGL_Cm244 File : C:\\RESRAD_FAMILY\\ONSITE\\7.2\\USERFILES\\OYSTER CREEK\\INDUSTRIAL\\BFM EMBEDDED PIPE\\BILL\\CM244\\BFM-IU_EP_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 1.217E-03
Co-60 Results:
RESRAD-ONSITE, Version 7.2 T<< Limit = 30 days 01/08/2024 13:46 Page 20 Probabilistic results summary : OCS BFM_Industrial Use_IR_EP_DCGL_Co60 File : C:\\RESRAD_FAMILY\\ONSITE\\7.2\\USERFILES\\OYSTER CREEK\\INDUSTRIAL\\BFM EMBEDDED PIPE\\BILL\\CO60\\BFM-IU-EP_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 6.422E+00 6.418E-06
Cs-137 Results:
RESRAD-ONSITE, Version 7.2 T<< Limit = 30 days 01/08/2024 13:53 Page 20 Probabilistic results summary : OCS BFM_Industrial Use_IR_EP_DCGL_Cs137 File : C:\\RESRAD_FAMILY\\ONSITE\\7.2\\USERFILES\\OYSTER CREEK\\INDUSTRIAL\\BFM EMBEDDED PIPE\\BILL\\CS137\\BFM-IU-EP_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 4.125E+01 1.148E-04
Eu-152 Results:
RESRAD-ONSITE, Version 7.2 T<< Limit = 30 days 01/08/2024 14:01 Page 20 Probabilistic results summary : OCS BFM_Industrial Use_EP_DCGL_Eu152 File : C:\\RESRAD_FAMILY\\ONSITE\\7.2\\USERFILES\\OYSTER CREEK\\INDUSTRIAL\\BFM EMBEDDED PIPE\\BILL\\EU152\\BFM-IU-EP_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 1.859E+01 3.861E-06
Eu-154 Results:
RESRAD-ONSITE, Version 7.2 T<< Limit = 30 days 01/09/2024 14:50 Page 20 Probabilistic results summary : OCS BFM_Industrial Use_IR_EP_DCGL_Eu154 File : C:\\RESRAD_FAMILY\\ONSITE\\7.2\\USERFILES\\OYSTER CREEK\\INDUSTRIAL\\BFM EMBEDDED PIPE\\BILL\\EU154\\BFM-IU_EP_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 1.093E+01 3.943E-06
Page 17 BHI Energy ENG-OCS -015 BFM: Calculation of Embedded Pipe DCGL Values Rev. 1
Fe-55 Results:
RESRAD-ONSITE, Version 7.2 T<< Limit = 30 days 01/08/2024 14:24 Page 20 Probabilistic results summary : OCS BFM_Industrial Use_IR_EP_DCGL_Fe55 File : C:\\RESRAD_FAMILY\\ONSITE\\7.2\\USERFILES\\OYSTER CREEK\\INDUSTRIAL\\BFM EMBEDDED PIPE\\BILL\\FE55\\BFM-IU_EP_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 3.775E+00 5.528E-09
RESRAD-ONSITE, Version 7.2 T<< Limit = 30 days 01/08/2024 14:35 Page 20 Probabilistic results summary : OCS BFM_Industrial Use_IR_EP_DCGL_H3 File : C:\\RESRAD_FAMILY\\ONSITE\\7.2\\USERFILES\\OYSTER CREEK\\INDUSTRIAL\\BFM EMBEDDED PIPE\\BILL\\H3\\BFM-IU_EP_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 7.396E-08
Mn-54 Results:
RESRAD-ONSITE, Version 7.2 T<< Limit = 30 days 01/08/2024 14:46 Page 20 Probabilistic results summary : OCS BFM_Industrial Use_IR_EP_DCGL_Mn54 File : C:\\RESRAD_FAMILY\\ONSITE\\7.2\\USERFILES\\OYSTER CREEK\\INDUSTRIAL\\BFM EMBEDDED PIPE\\BILL\\MN54\\BFM-IU_EP_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 1.000E+00 2.112E-07
Nb-94 Results:
RESRAD-ONSITE, Version 7.2 T<< Limit = 30 days 01/09/2024 14:34 Page 20 Probabilistic results summary : OCS BFM_Industrial Use_EP_DCGL_Nb94 File : C:\\RESRAD_FAMILY\\ONSITE\\7.2\\USERFILES\\EMBEDDED PIPE\\NB94\\BFM-IU_EP_DCGL.RAD Peak of the mean dose (averaged over observations) at graphical times Repetition Time of peak mean dose Peak mean dose Years mrem/yr 1 4.507E+02 3.520E-06
Ni-63 Results:
RESRAD-ONSITE, Version 7.2 T<< Limit = 30 days 01/09/2024 14:12 Page 20 Probabilistic results summary : OCS BFM_Industrial Use_EP_DCGL_Ni63 File : C:\\RESRAD_FAMILY\\ONSITE\\7.2\\USERFILES\\EMBEDDED PIPE\\NI63\\BFM-IU_EP_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 2.424E+01 2.788E-07
Np-237 Results:
RESRAD-ONSITE, Version 7.2 T<< Limit = 30 days 01/10/2024 06:42 Page 20 Probabilistic results summary : OCS BFM_Industrial Use_IP_Np237 File : C:\\RESRAD_FAMILY\\ONSITE\\7.2\\USERFILES\\EMBEDDED PIPE\\NP237\\BFM-IU_EP_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 4.924E+00 2.126E-02
Pu-238 Results:
RESRAD-ONSITE, Version 7.2 T<< Limit = 30 days 01/10/2024 08:52 Page 20 Probabilistic results summary : BFM_IU_EP_DCGL_Pu238 File : C:\\RESRAD_FAMILY\\ONSITE\\7.2\\USERFILES\\EMBEDDED PIPE\\PU238\\IBFM-IU_EP_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 1.745E-01
Page 18 BHI Energy ENG-OCS -015 BFM: Calculation of Embedded Pipe DCGL Values Rev. 1
Pu-239 Results:
RESRAD-ONSITE, Version 7.2 T<< Limit = 30 days 01/10/2024 10:52 Page 20 Probabilistic results summary : OCS BFM_Industrial Use_EP_DCGL_Pu239 File : C:\\RESRAD_FAMILY\\ONSITE\\7.2\\USERFILES\\EMBEDDED PIPE\\PU239\\BFM-IU_EP_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 1.194E+02 4.531E-01
Pu-240 Results:
RESRAD-ONSITE, Version 7.2 T<< Limit = 30 days 01/11/2024 14:48 Page 20 Probabilistic results summary : OCS BFM_Industrial Use_EP_DCGL_Pu240 File : C:\\RESRAD_FAMILY\\ONSITE\\7.2\\USERFILES\\EMBEDDED PIPE\\PU240\\BFM-IU_EP_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 1.194E+02 4.488E-01
Pu-241 Results:
RESRAD-ONSITE, Version 7.2 T<< Limit = 30 days 01/11/2024 12:57 Page 20 Probabilistic results summary : OCS BFM_Industrial Use_EP_DCGL_Pu241 File : C:\\RESRAD_FAMILY\\ONSITE\\7.2\\USERFILES\\EMBEDDED PIPE\\PU241\\BFM-IU_EP_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 2.031E+02 1.151E-05
Sb-125 Results:
RESRAD-ONSITE, Version 7.2 T<< Limit = 30 days 01/09/2024 14:24 Page 20 Probabilistic results summary : OCS BFM_Industrial Use_EP_DCGL_Sb125 File : C:\\RESRAD_FAMILY\\ONSITE\\7.2\\USERFILES\\EMBEDDED PIPE\\SB125\\BFM-IU_EP_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 2.219E+00 9.874E-06
Sr-90 Results:
RESRAD-ONSITE, Version 7.2 T<< Limit = 30 days 01/09/2024 14:55 Page 20 Probabilistic results summary : OCS BFM_Industrial Use_EP_DCGL_Sr90 File : C:\\RESRAD_FAMILY\\ONSITE\\7.2\\USERFILES\\EMBEDDED PIPE\\SR90\\BFM-IU_EP_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 4.924E+00 1.104E-04
Tc-99 Results:
RESRAD-ONSITE, Version 7.2 T<< Limit = 30 days 01/11/2024 11:34 Page 20 Probabilistic results summary : OCS BFM_Industrial Use_EP_DCGL_Tc99 File : C:\\RESRAD_FAMILY\\ONSITE\\7.2\\USERFILES\\EMBEDDED PIPE\\TC99\\BFM-IU_EP_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 4.965E-05
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