Text

Annual Radioactive Effluent Release Report 64
	ML22112A105
Person / Time
Site:	Peach Bottom
Issue date:	04/22/2022
From:	Disabatino R; Constellation Energy Generation
To:	; Document Control Desk, Office of Nuclear Material Safety and Safeguards, Office of Nuclear Reactor Regulation
References
	Download: ML22112A105 (154)
	v • d • e

April 22, 2022 U.S. Nuclear Regulatory Commission Document Control Desk Washington, DC 20555-0001

Subject:

Peach Bottom Atomic Power Station Units 1, 2 and 3 Independent Spent Fuel Storage Installation (ISFSI)

Facility Operation License DPR-12, DPR-44 and DPR-56 NRC Docket 50-171, 50-277 and 50-278 and ISFSI Docket 72-29 Annual Radioactive Effluent Release Report 64 January 1, 2021 through December 31, 2021 Enclosed is the Annual Radioactive Effluent Release Report 64, January 1, 2021 through December 31, 2021 for Peach Bottom Atomic Power Station, Units 1, 2 and 3.

This report is being submitted in compliance with 10 CFR 50.36a(2) and the Technical Specifications of Operating Licenses DPR-44 and DPR-56 and to fulfill the requirements of Offsite Dose Calculation Manual Specifications (ODCMS) 3.10.2. Additionally, this report is submitted to satisfy the annual effluent reporting requirements for the ISFSI required by the ODCM.

The ODCM was revised once during the 2021 reporting period. The revision is attached in Appendix A.

If you have any questions or require additional information, please do not hesitate to contact Dani Brookhart at 717-456-3056.

Sincerely, Ronald J. DiSabatino Jr, Plant Manager Peach Bottom Atomic Power Station RD/RM/TJH/DMJ/dlb Enclosure (1)

Cc: Regional Administrator - NRC Region 1 NRC Senior Resident Inspector - Peach Bottom Atomic Power Station CCN 22-33 Constellation

PEACH BOTTOM ATOMIC POWER STATION Unit Numbers 2 and 3 Docket Numbers 50-277 and 50-278 Unit Number 1 Docket Number 50-171 PBAPS Independent Spent Fuel Storage Installation Docket Number 72-29 RADIOACTIVE EFFLUENT RELEASE REPORT N0.64 JANUARY 1, 2021 THROUGH DECEMBER 31, 2021 Submitted to The United States Nuclear Regulatory Commission Pursuant to Facility Operating Licenses DPR-44 and DPR-56

Peach Bottom Atomic Power Station Unit 2 and 3 Licensee:

(This page intentionally left blank) 2 Exelon Generation Company, LLC PSEG Nuclear, LLC

Peach Bottom Atomic Power Station Unit 2 and 3 licensee:

TABLE OF CONTENTS Exelon Generation Company, LLC PSEG Nuclear, LLC INTRODUCTION...................................................................................................................................... 5 ATTACHMENT 1: SUPPLEMENTAL INFORMATION................................................................................. 7 Regulatory limits...................................................................................................................... 8 Maximum Permissible Concentrations..................................................................................... 8 Average Energy......................................................................................................................... 9 Minimum Detectable Concentrations...................................................................................... 9 Measures and Approximations of Total Radioactivity.............................................................. 9 Decommissioned Unit 1 liquid Radioactive Waste Processing.............................................. 10 Batch Releases........................................................................................................................ 11 Average Stream Flow.............................................................................................................. 11 Abnormal or Unplanned Releases.......................................................................................... 12 liquid Releases....................................................................................................................... 12 Gaseous Releases................................................................................................................... 12 Missed Sampling..................................................................................................................... 12 Radiation Monitors Out of Service for Greater than 30 days................................................. 12 Changes to the ODCM............................................................................................................ 13 Violations................................................................................................................................ 13 Dose Assessment.................................................................................................................... 14 Introduction........................................................................................................................... 14 liquid Dose Assessment......................................................................................................... 14 Gaseous Dose Assessment..................................................................................................... 15 Gaseous Effluents -Summation of All Releases...................................................................... 17 liquid Effluents-Summation of All Releases.......................................................................... 17 ATTACHMENT 2: EFFLUENT

SUMMARY

............................................................................................... 18 Gaseous Effluents - Summation of All Releases...................................................................... 19 Gaseous Effluents Release Point: Elevated (Main Offgas Stack)............................................. 20 Gaseous Effluents Release Point: Ground-Level (Units 2 and 3 Reactor Building Exhaust Vents and Abnormal Releases)............................................................................................... 21 liquid Effluents - Summation of All Releases.......................................................................... 22 liquid Effluents Release Points-liquid Radwaste, RHR Leaks and Groundwater................. 23 ATTACHMENT 3: SOLID WASTE AND IRRADIATED FUEL SHIPMENTS.................................................. 24 Solid Waste Shipped............................................................................................................... 25 3

Peach Bottom Atomic Power Station Licensee:

Exelon Generation Company, LLC Unit 2 and 3 PSEG Nuclear, LLC Irradiated Fuel Shipments...................................................................................................... 28 Changes to Process Control Program (PCP)............................................................................ 28 ATTACHMENT 4: RADIOLOGICAL IMPACT ON MAN............................................................................ 29 Radiological Impact on Man................................................................................................... 30 40 CFR 190 Doses................................................................................................................... 30 ATTACHMENT 5: METEOROLOGICAL DATA......................................................................................... 31 Technical Concurrence (for accuracy of information):

Date 4

Peach Bottom Atomic Power Station Unit 2 and 3 INTRODUCTION Licensee:

Exelon Generation Company, LLC PSEG Nuclear, LLC In accordance with the Reporting Requirements of Technical Specification 5.6.3 applicable during the reporting period, January 1, 2021 through December 31, 2021, this report summarizes the Effluent Release Data for Peach Bottom Atomic Power Station (PBAPS) Units 2 and 3. The notations E+ and E-are used to denote positive and negative exponents to the base 10, respectively.

The release of radioactive materials during the reporting period was within the Offsite Dose Calculation Manual Specification (ODCMS) limits.

In addition to the normal effluent releases from Units 2 and 3, there was one type of abnormal release of liquid low-level radioactive material, groundwater tritium contamination ('tritium plume'). These releases were far below regulatory limits.

For all gaseous releases from Units 2 and 3, the maximum calculated organ dose (bone) from iodines (1-131, 1-133 and 1-135), tritium (H-3), carbon-14 (C-14) and particulates to any individual was 1.43E-01 mrem, which was approximately 4.75E-01% of the annual limit. The maximum calculated air dose in the unrestricted area due to noble gas effluents was 1.18E-01 mrad (gamma) and 8.09E-02 mrad (beta), which was 3.95E-01% and 1.35E-01%, respectively, of the annual limits.

In 2021, there were no direct gaseous or liquid releases or discharges from Unit 1 to the environment. Additionally, there were no gaseous or liquid radioactive releases from the Independent Spent Fuel Storage Installation, NRC Docket No. 72-29 {ISFSI).

No changes were made to RW-AA-100 "Process Control Program for Radioactive Waste" in the 2021 reporting period. There was one change to the ODCM and the Appendix A during the 2021 reporting period.

5

Peach Bottom Atomic Power Station Unit 2 and 3 Licensee:

Exelon Generation Company, LLC PSEG Nuclear, LLC Exelon Nuclear common procedures, which provide consistent expectations and standards for Radioactive Effluents Controls Program (RECP), were used to generate this report. PBAPS site specific procedures used to assist with abnormal/unplanned releases were also used to generate this report. They are:

CY-AA-170-000, Radioactive Effluent and Environmental Monitoring Program CY-AA-170-100, Radiological Environmental Monitoring Program CY-AA-170-200, Radioactive Effluent Controls Program CY-AA-170-300, Offsite Dose Calculation Manual Administration CY-AA-170-2000, Annual Radioactive Effluent Release Report CY-AA-170-2100, Estimated Errors of Effluent Measurement CY-AA-170-3100, Offsite Dose Calculation Manual Revisions CY-AA-170-2300, Determination of Carbon-14 in Gaseous Effluents CY-PB-170-202, RHR-HPSW Leak Rate Calculation CY-PB-170-2020, Radiological Abnormal Gaseous Release Assessment CY-PB-170-210, Gaseous Dose and Dose Rate Calculation CY-PB-170-2000, Annual Radioactive Effluent Release Report CY-PB-170-2300, OpenEMS Effluent Management System Implementation Peach Bottom Atomic Power Station, Offsite Dose Calculation Manual and Specifications (Appendix A) 6

Peach Bottom Atomic Power Station Unit 2 and 3 Licensee:

Exelon Generation Company, LLC PSEG Nuclear, LLC ATTACHMENT 1: SUPPLEMENTAL INFORMATION 7

Peach Bottom Atomic Power Station Unit 2 and 3 Licensee:

Exelon Generation Company, LLC PSEG Nuclear, LLC Regulatory Limits Table 1. Noble Gas Dose Rate and Dose Limits Maximum Value Units Limit Classification Specification 500 mrem/yr annual total body dose rate ODCM Specification 3.8.C.l.a 3000 mrem/yr annual skin dose rate ODCM Specification 3.8.C.l.a 10 mrad gamma radiation in air dose per quarter ODCM Specification 3.8.C.2.a 20 mrad beta radiation in air dose per quarter ODCM Specification 3.8.C.2.b 20 mrad gamma radiation in air dose per year ODCM Specification 3.8.C.2.c 40 mrad beta radiation in air dose per year OOCM Specification 3.8.C.2.d Table 2. Iodines, Tritium and Particulates (with half-lives >8 days) Dose Rate and Dose Limits Maximum Units Limit Classification Specification Value 1500 mrem/yr annual dose rate limit to any organ ODCM Specification 3.8.C.1.b 15 mrem annual dose limit to any organ per quarter OOCM Specification 3.8.C.3.a 30 mrem dose limit to any organ per year ODCM Specification 3.8.C.3.b Table 3. Liquid Effluent Activity Concentration and Dose Rate Limits Maximum Value Units Limit Classification Specification 10 times 10 CFR 20, Appendix B, Table 2,

µCi/ ml Activity Concentration in all liquid releases ODCM Specification 3.8.B.1.a Column2 2E-04

µCi/ ml total activity concentration for all dissolved and ODCM Specification 3.8.B.l.b entrained noble gases 3

mrem total body dose limit per quarter ODCM Specification 3.8.B.2.a 10 mrem dose limit per quarter to any organ ODCM Specification 3.8.B.2.a 6

mrem total body dose limit per year ODCM Specification 3.8.B.2.b 20 mrem dose limit per year to any organ ODCM Specification 3.8.B.2.b Maximum Permissible Concentrations Gaseous dose rates, rather than effluent concentrations, are used to calculate permissible release rates for gaseous releases. The maximum permissible dose rates for gaseous releases are defined in ODCMS 3.8.C.1.a and 3.8.C.l.b.

The Effluent Concentrations Limits (ECL) specified in 10 CFR 20, Appendix B, Table 2, Column 2 multiplied by 10, for identified nuclides, are used to calculate permissible release rates and concentrations for liquid release per ODCMS 3.8.B.l.

The total activity concentration for all dissolved or entrained noble gases is limited to < 2E-04

µCi/ml (ODCMS 3.8.B.l.b).

8

Peach Bottom Atomic Power Station Unit 2 and 3 Average Energy Licensee:

Exelon Generation Company, LLC PSEG Nuclear, LLC The PBAPS ODCM limits the dose-equivalent rates due to the release of noble gases to less than or equal to 500 mrem/year to the total body and less than or equal to 3000 mrem/year to the skin. Therefore, the average beta and gamma energies of the radionuclide mixture in releases of fission and activation gases as described in Regulatory Guide 1.21, Revision 1, "Measuring, Evaluation, and Reporting Radioactivity in Solid Wastes and Releases of Radioactive Materials in Liquid and Gaseous Effluents from Light-Water-Cooled Nuclear Power Plants," are not applicable to PBAPS.

Minimum Detectable Concentrations If a radionuclide was not detected, "<LLD" was reported as the activity. Samples were analyzed with techniques that achieved the required Lower Limits of Detection (LLD) specified in ODCMS Table 4.8.B.1, "Radioactive Liquid Waste Sampling and Analysis" (for liquids) or ODCMS Table 4.8.C.1, "Radioactive Gaseous Waste Sampling and Analysis from Main Stack and Vent Stack" (for gases). In all cases, the LLD requirements were satisfied.

Measures and Approximations of Total Radioactivity Fission and Activation Gases The method used for gamma isotopic analysis is the Canberra Genie' System with a gas marinelli beaker. Grab samples are taken and analyzed weekly to determine the isotopic mixture of noble gas activity released for the week. Airborne effluent gaseous activity was continuously monitored and recorded in accordance with ODCMS Table 4.8.C.1. The data from the noble gas radiation monitor were analyzed to report noble gas effluent activities. When no activity was identified in the grab isotopic analysis (un-id(s) or un-id(v)), the entire release must be assumed to be the radionuclide with the most-limiting dose factors for the release pathway (i.e. krypton-88 (Kr-88) for all ground-level releases, Kr-88 for elevated gamma dose and Kr-87 for elevated beta dose; see ODCM IV.Band NUREG-01331). The activity released is listed as "unidentified" in the Attachment 2 Tables. If activity was found in the grab isotopic analysis, the isotopic mixture for the Noble Gas Monitor was determined from that isotopic mixture.

Iodines The method used is the Canberra Genie' System with a charcoal cartridge. Iodine activity was continuou*sly sampled and analyzed in accordance with ODCMS Table 4.8.C.1.

Particulates The method used is the Canberra Genie' System with a particulate filter (47 mm diameter).

Particulate activity was continuously sampled and analyzed in accordance with ODCM Table 4.8.C.1.

Composite particulate air samples were submitted to an offsite vendor laboratory for analyses of strontium-89 (Sr-89), Sr-90, nickel-63 (Ni-63) and gross alpha.

1 NU REG 0133, "Preparation of Radiological Effluent Technical Specifications for Nuclear Power Plants: A Guidance Manual for Users of Standard Technical Specifications," October 1978.

9

Peach Bottom Atomic Power Station Unit 2 and 3 Carbon-14 Licensee:

Exelon Generation Company, LLC PSEG Nuclear, LLC The amount of C-14 released was estimated using the guidance from the Electric Power Research Institute (EPRI) Technical Report 1021106, "Estimation of Carbon-14 in Nuclear Power Plant Gaseous Effluents". The C-14 was released primarily through the Main Offgas Stack (9.70E+01%)

with a small amount (3.00E+00%) through the Reactor Building Exhaust Vents. The C-14 in liquid effluents is not a significant dose pathway, as determined from studies.

Liquid Effluents Gamma isotopic activity concentrations are determined on each batch of liquid effluent prior to release using the Canberr~ Genie' System in accordance with ODCMS Table 4.8.B.1. The total activity of a released batch is determined by multiplying each nuclide's concentration by the total volume discharged.

Composite liquid radwaste samples are analyzed for tritium on-site and submitted to an offsite vendor laboratory for analyses of iron-55 (Fe-55), phosphorus-32 (P-32), Sr-89, Sr-90, Ni-63, and gross alpha.

Estimate of Total Error Present CY-AA-170-2100, "Estimated Errors of Effluent Measurements", provides the methodology to obtain an overall estimate of the error associated with radioactive effluents, which are listed in of this report.

Decommissioned Unit 1 Liquid Radioactive Waste Processing There were no direct gaseous or liquid releases or discharges from Unit 1 to the environment during 2021. However, during the reporting period, a total of 223 gallons of water with low concentrations of H-3 were collected from Unit 1 and stored at Unit 2 and 3, for processing in a future year. No gamma emitting nuclides were identified above detectable limits in the Ul water collected from the containment or containment sump.

10

Peach Bottom Atomic Power Station Unit 2 and 3 Batch Releases Licensee:

Table 4. Quarterly Liquid Batch Release Statistics First Quarter Second Quarter Number of Batch 19 4

Releases Total Time for Batch 1.98E+03 3.2SE+02 Releases (minutes)

Maximum time period for batch release 2.73E+02 1.18E+02 (minutes)

Average time period for batch release 1.04E+02 8.13E+Ol (minutes)

Minimum time period for batch release 1.90E+Ol 3.00E+Ol (minutes)

Average Stream Flow 4.59E+04 3.75E+04 (ft3 / sl2,3 Dilution volume 7.41E+09 1.48E+09 (liters)

Table 5. Quarterly Gaseous Batch Release Statistics First Quarter Second Quarter Number of batch 0

0 releases:

Total Time for batch releases (minutes) 0 0

Maximum time period for batch release 0

0 (minutes)

Average time period for batch release 0

0 (minutes)

Minimum time period for batch release 0

0 (minutes)

Average Stream Flow Exelon Generation Company, LLC PSEG Nuclear, LLC Third Quarter Fourth Quarter 2

14 1.94E+02 1.57E+03 1.60E+02 1.67E+02 9.70E+Ol 1.12E+02 3.40E+Ol 4.80E+0l 4.45E+04 4.39E+04 8.81E+08 S.87E+09 Third Quarter Fourth Quarter 0

0 0

0 The river flow is not used for dose calculations. The actual flow rate of Circulation Water (the water that is circulated within the plant for cooling) is determined for each liquid effluent release because this Circulation Water provides dilution and therefore reduces the projected dose.

2 Average Stream Flow is not used for dose calculation.

3 USGS National Water Information System, Site Name: "Susquehanna River at Marietta, PA", Site Number:

01576000. Data accessed 4 April 2022.

11

Peach Bottom Atomic Power Station Unit 2 and 3 Abnormal or Unplanned Releases Licensee:

Exelon Generation Company, LLC PSEG Nuclear, LLC

'Abnormal' releases are those releases that are not defined as 'normal' releases in the Licensee's ODCM. Systems with a potential for an unplanned release are monitored to ensure if a release were to occur it would be identified and quantified appropriately. Source terms used for dose calculations utilize direct sampling and the maximum concentrations of nuclides to ensure that the most conservative and bounding estimates are used. Methodologies calculate conservative dose utilizing conservative mathematical models to describe intake and exposure pathways. Therefore, reported doses for these abnormal releases are calculated conservatively.

Liquid Releases Groundwater Tritium Plume During 2021, during the sampling and analysis of the Radiological Ground Water Protection Program (RGPP), tritium was measured at several locations around the site. The ground water that has detectable tritium has been determined to flow into the plant intake and eventually flow into the normal discharge canal. Details of this program can be found in the Peach Bottom Annual Radiological Environmental Operating Report (AREOR) as an appendix. No other nuclides were detected in monitoring wells.

Analysis of Release It was assumed from the maximum flow rates measured that ground water flowed to the discharge canal at a steady rate of 3.44E+02 gpm, carrying with it some of the tritium underneath the plant. The ground water flow rate was updated in April 2017, when the new report was provided4* The conservative maximum dose for the entire year from this continuous release is calculated to be 4.45E-05 mrem (to the whole-body) and 4.45E-05 mrem (to any organ, except bone5 which is 0.00E+00 mrem)6. This dose contribution projection is well below the limit specified in the ODCM.

Gaseous Releases There were no abnormal gaseous releases in 2021.

Missed Sampling There were no missed ODCM samples in 2021.

Radiation Monitors Out of Service for Greater than 30 days There were no Radiation Monitors Out of Service for greater than 30 days in 2021.

4 "Estimated Mass Flux OfTritiated Groundwater To The Conowingo Reservoir And Rock Run Creek, Peach Bottom Atomic Power Station, Delta, Pennsylvania", August 2017, GHD formerly Conestoga-Rovers & Associates.

5 Tritium dose factor for bone is 0.00E+00; therefore, no hypothetical dose is calculated.

6 These doses are identical because the dose factors are identical for the same nuclide and pathway.

12

Peach Bottom Atomic Power Station Unit 2 and 3 Changes to the ODCM Licensee:

Exelon Generation Company, LLC PSEG Nuclear, LLC There was one revision made to the ODCM and to the ODCM Specifications (Appendix A) during 2021. REMP Station Code U (Milk) was deleted and replaced with Farm S, 19,100 ft SE of site. This was due to Farm Uno longer participating in the REMP. More detail can also be found in Appendix A.

Violations There were no effluent release violations for the 2021 reporting period.

13

Peach Bottom Atomic Power Station Unit 2 and 3 Dose Assessment Introduction Licensee:

Exelon Generation Company, LLC PSEG Nuclear, LLC A dose assessment for PBAPS was conducted with the measured cumulative 2021 radioactive effluent source terms, provided in Attachment 2, "Effluent Summary," and the 2021 meteorological {MET) data. This dose assessment verifies that PBAPS continues to demonstrate compliance with the limits as well as the requirement of maintaining the doses "as low as is reasonably achievable" as stated in 10 CFR 50, Appendix 1.7 Liquid Dose Assessment Hydrologic Conditions and Receptor Locations of Interest PBAPS is located on the Conowingo Pond formed in the Susquehanna River by the Conowingo Dam. For 2021, the annual average river flow8 was measured as 4.30E+04 ft3 /s.

Of the three separate flow regimes that were used in the original Appendix I submittal, the most-limiting of them (<1.S0E+04 ft3 /s) was used to calculate a dose assessment for this report because this would provide a bounding extreme for all PBAPS liquid effluents. Therefore, although the actual average stream flow for the year was more than double the limiting case, this report will provide an upper limit for the most-limiting dose.

The annual average dilution factor9 at the Conowingo Intake is 5.40E+00 and the assumption for the reconcentration factor 9 is 1.16E+00. The PBAPS shorewidth factor 10 of 2.00E-01 was also used.

No invertebrate intake was examined because invertebrate ingestion pathways are not considered to be significant in the area close to PBAPS. The pathway factors for the various age groups, used to determine dose to the public from liquid effluents are shown in Table 6.

Table 6. Consumption and Usage Rate Assumptions Pathway Adult Teenager Child Infant Units Eating Fish 10 2.lOE+Ol 1.60E+Ol 6.90E+OO O.OOE+OO kg/yr Drinking Water 11 7.30E+02 5.10E+02 5.10E+02 S.10E+02 L/ yr Swimming 12 2.80E+02 2.80E+02 O.OOE+OO O.OOE+OO h/ yr Boating 12 1.20E+02 1.20E+02 6.70E+Ol O.OOE+OO h/ yr Shoreline Recreation12 3.25E+02 3.25E+02 l.40E+Ol O.OOE+OO h/ yr Fishing from Conowingo Dam12 3.25E+02 3.25E+02 O.OOE+OO O.OOE+OO h/ yr 710 CFR SO Appendix I, "Numerical Guides for Design Objectives and Limiting Conditions for Operation to Meet the Criterion "As Low as is Reasonable Achievable" for Radioactive Material in Light-Water-Cooled Nuclear Power Reactor Effluents".

USGS National Water Information Service; Monitoring Site 01576000, Susquehanna River at Marietta, PA; http://waterdata.usgs.gov/nwis.

Accessed 4 April 2021.

' From original ODCM.

10 RG 1.109, Table A-2.

11 All locations from RG 1.109, Section A-2. Chester Water Authority uses 10% of the RG 1.109 value because it is assumed to have 10% sourced from Conowingo Pond.

12 PBAPS Environmental Report, Supplement No. 3, Page 19. Boating data is a ratio of Adult:Child rates from RG 1.109, Table A-2.

14

Peach Bottom Atomic Power Station Unit 2 and 3 Licensee:

Exelon Generation Company, LLC PSEG Nuclear, LLC Liquid Effluent Dose Assessment Conclusion For all permitted releases in 2021, the calculated total body dose was 9.40E-05 mrem and 9.78E-05 mrem to the limiting organ of child Liver.

Therefore, PBAPS liquid radioactive effluent controls continue to demonstrate compliance with 10 CFR 50, Appendix I objectives for the purposes of keeping doses to members of the public "as low as is reasonably achievable". These limiting or maximum calculated doses are a small fraction of the limits in Appendix I.

Gaseous Dose Assessment The gaseous dose assessment calculates the conservative dose at the limiting receptor location, as defined in the ODCM and at locations from the land-use census, using the 2021 meteorology to demonstrate compliance with 10 CFR 50, Appendix I. The assessment compares the current ODCM locations to the maximum locations from the land use census to ensure the current ODCM locations are still the most impactful dose locations.

Tables 7 and 8 report the dose calculated with the CY-PB-170-210 spreadsheet using the 2021 MET data and total gaseous activity released (summarized in Attachment 2), including C-14. Table 7 focuses on the two locations with the highest elevated dispersion factor (X/Q) from the Main Offgas Stack, while Table 8 highlights the two locations with the highest ground deposition factor (D/Q) from the Reactor Building Exhaust Vents. The X/Q values are very similar to those used in the ODCM, and therefore the differences in noble gas dose is minimal. The larger discrepancies between Iodine, Particulates, Tritium (1/P/T) organ doses can be explained by the differences in pathways. Tables 7 and 8 assume that there is a milk pathway at each of the listed locations.

The ODCM defines the milk pathway at 1500m SW and the D/Qs are more comparable (2021 vent: 1.92E-09 1/m2 vs. ODCM vent: 1.58E-09 1/m2) and therefore, the dose calculated by ODCM methodology is more accurately representative of the dose to members of the public than the doses reported in Tables 7 and 8.

Table 7. Conservative Maximum Elevated Release Dose from 2021 Source Term and 2021 Meteorology Distance 2021 2021 Vent TotalBody Skin Dose Gamma Beta Air 1/P/T/C-Limiting Direction Highest MS Dose Air Dose Dose 14 Dose (m)

X/Q(D/Q)

(mrem)

(mrad)

(mrem)

Receptor 4600 N

3.S0E-08 1.20E-07 1.26E-02 1.64E-02 1.30E-02 8.94E-03 1.64E-01 Bone (2.76E-10)

(6.0SE-10) 3800 SW 3.68E-08 1.27E-07 1.33E-02 1.73E-02 1.38E-02 9.42E-03 1.60E-01 Bone (2.29E-10)

(4.93E-10)

Table 8. Ground-Level Dose from 2021 Source Term and 2021 Meteorology Distance 2021 Highest 2021 MS Total Body Skin Gamma Beta Air 1/P/T/C-Limiting Direction Vent D/Q X/Q Dose Dose Air Dose Dose 14 Dose (m)

(X/Q)

(D/Q)

(mrem)

(mrad)

(mrem)

Receptor 1200 SSE 1.00E-08 5.13E-09 1.410E-01 1.42E-01 1.13E-01 7.66E-02 1.S0E-01 Bone (1.07E-06)

(8.38E-10) 900 NW 9.lSE-09 S.24E-09 1.56E-01 2.03E-01 1.62E-01 1.l0E-01 2.06E-01 Bone (1.53E-06}

(6.33E-10) 15

Peach Bottom Atomic Power Station Unit 2 and 3 Licensee:

Gaseous Radioactive Effluent Dose Assessment Conclusion Exelon Generation Company, LLC PSEG Nuclear, LLC The conservative maximum dose was 1.43E-01 mrem with the maximum receptor as the child bone which is due to the incorporation of carbon-14 in the calculation. Without C-14, the maximum dose is 8.76E-03 mrem to the infant thyroid. The noble gas limiting air doses were 1.18E-01 mrad (gamma) and 8.09E-02 mrad (beta). Noble gas plume conservative dose was 1.14E-01 mrem to the total body and 1.49E-01 to the skin mrem for the year.

A dose assessment was performed for members of the public due to their activities inside the site boundary, per ODCMS 3.10.2.f. The locations where a member of the public would spend a significant amount of time inside the site boundary are two new vehicle checkpoints, approximately 780 feet ENE (Emergency checkpoint) and 910 feet NNE (Warehouse checkpoint) of the PBAPS Unit 2 and Unit 3 reactor building exhaust vents. Assuming continuous occupancy, the calculated total body and skin doses were 7.94E-01 mrem and 1.03E+0O mrem for the Emergency checkpoint and 9.21E-02 mrem and 1.19E-01 mrem for the Warehouse checkpoint, respectively. The noble gas limiting air doses were 8.21E-01 mrad (gamma) and 5.SGE-01 mrad (beta) for the Emergency checkpoint and 9.52E-02 mrad (gamma) and 6.42E-02 mrad (beta) for the Warehouse checkpoint. These doses are overly conservative, as typically vehicles and their drivers are not at the checkpoints 24/7. The maximum organ dose from the inhalation pathway, not including C-14, is 1.37E-01 mrem for the Emergency checkpoint and 4.62E-02 mrem for the Warehouse checkpoint, both to the infant thyroid.

All doses are projected to be much less than the limits, as expected. Again, these dose models incorporate several factors of conservatism including a source term that, by procedure, will use the most dose-limiting noble gas nuclide when no fission gas can be identified by grab sample, but activity is detected from the effluent radiation monitor. Exelon Nuclear uses a detailed C-14 dose projection from the Electric Power Research Institute, Technical Report 1021106. Details for the assumptions used in this calculation may be found there.15 Therefore, PBAPS gaseous radioactive effluent controls continue to demonstrate compliance with 10 CFR 50, Appendix I objectives for the purposes of keeping doses to members of the public "as low as is reasonably achievable". These limiting or maximum calculated doses are a small fraction of the limits in Appendix I.

15 PBAPS uses specific Boiling Water Reactor assumptions because the fraction of C-14 that is in the CO2 form will vary based on general plant design. This is important because the major dose pathway is through photosynthesis and, therefore, only the oxide form is relevant.

16

Peach Bottom Atomic Power Station Unit 2 and 3 ERRATA Licensee:

Exelon Generation Company, LLC PSEG Nuclear, LLC In 2020, there were two sections of the Effluent Summary Attachment that required revision. Firstly, the Total Iodine Ci was reported as Total 1-131 in the Gaseous Effluents -

Summation of All Releases section. Secondly, the Tritium in the Liquid Effluent Summation of All Releases section did not include the tritium from abnormal releases. Please see the corrected table sections below.

Gaseous Effluents - Summation of All Releases Period: January 1, 2020 through December 31, 2020 B. Iodines l. Total 1-131 Ci 7.88E-5

2. Average release For the Period uCi/ s l.02E-0S

3. Percent of ODCM limit Liquid Effluents - Summation of All Releases Period: January 1, 2020 to December 31, 2020 B. Tritium

1. Total Release Ci 2.29E+00

2. Average diluted concentration for the 3.84E-09 Period

µCi/ ml

3. Percent of applicable limit

3.84E-04

1ox 10CFR20 Limit of 1.00E-03 µCi/ ml; ODCMS 3.8.B.1.a 17 Unit: Peach Bottom l.79E-4 2.39E-4 8.37E-5 l.90E+0l I 2.28E-05 3.0lE-05 l.0SE-05 Unit: Peach Bottom Est. Total Error%

2.49E+00 1.00E+00 2.96E+00 6.40E+00 3.74E-09 l.78E-09 5.0SE-09 3.74E-04 l.78E-04 S.0SE-04

Peach Bottom Atomic Power Station Unit 2 and 3 Licensee:

Exelon Generation Company, LLC PSEG Nuclear, LLC ATTACHMENT 2: EFFLUENT

SUMMARY

18

Peach Bottom Atomic Power Station Unit 2 and 3 Licensee:

Exelon Generation Company, LLC PSEG Nuclear, LLC Gaseous Effluents - Summation of All Releases Period: January 1, 2021 through December 31, 2021 A. Fission & Activation Gases Units Quarter 1

1. Total Release Ci 9.45E+0l

2. Average release For the Period uCi/ s 1.22E+0l

3. Gamma Air Dose mrad 4.27E-02

4. Beta Air Dose mrad 2.92E-02

5. Percent of ODCM limit Gamma Air Dose 2.85E-01 Beta Air Dose 9.72E-02 B. Iodines

1. Total 1-131 Ci 5.70E-05

2. Average release For the Period uCi/ s 7.33E-06

3. Percent of ODCM limit Quarter 2 Quarter 3 9.78E+0l 8.72E+0l 1.24E+0l l.04E+0l 4.0BE-02 3.lGE-02 2.79E-02 2.lSE-02 2.72E-01 2.l0E-01 9.30E-02 7.18E-02 l.34E-04 2.0BE-04 l.70E-05 2.62E-05

No ODCM defined Curie Limit, therefore a percentage of the limit cannot be calculated.

C. Particulate

1. Particulates with Tl/2 > 8 days Ci 8.26E-05 7.33E-05 7.84E-05

2. Average release For the Period uCi/ s 1.0GE-05 9.32E-06 9.BGE-06

3. Percent of ODCM limit

No ODCM defined Curie Limit, therefore a percentage of the limit cannot be calculated.

D. Tritium

1. Total Release Ci 4.25E+0l 5.SBE+0l 2.GSE+0l

2. Average release For the Period uCi/ s 5.47E-00 7.l0E+00 3.33E+00

3. Percent of ODCM limit

No ODCM defined Curie Limit, therefore a percentage of the limit cannot be calculated.

E. Gross Alpha

1. Total Release Ci

<LLD

2. Average release For the Period uCi/ s

<LLD

3. Percent of ODCM limit

No ODCM defined Curie Limit, therefore a percentage of the limit cannot be calculated.

F. Carbon-14

1. Total Release Ci 9.78E+OO 9.78E+00 9.78E+00

2. Average release For the Period uCi/s 1.26E+00 1.24E+00 l.23E+OO G. lodine-131, 133 and 135, Tritium, Carbon-14 & Particulate l. Organ Dose*

mrem 3.SGE-02 3.SGE-02 3.SGE-02 Unit: Peach Bottom Quarter4 6.34E+00 8.92E+00 3.30E-03 2.24E-03 2.20E-02 7.46E-03 4.81E-04 6.0SE-05 1.21E-04 1.52E-05 l.72E+0l 2.17E+00

<LLD

<LLD 9.78E+OO 1.23E+00 3.SGE-02

2. Percent ODCM limit 2.38E-01%

2.38E-01%

C-14 contributes most significantly; therefore, the quarterly dose to the child bone is reported 19 Est. Total Error%

4.00E+0l l.90E+0l I 2.80E+0l I 1.30E+0l I 4.00E+02 I

Peach Bottom Atomic Power Station Unit 2 and 3 Licensee:

Exelon Generation Company, LLC PSEG Nuclear, LLC Gaseous Effluents Release Point: Elevated (Main Offgas Stack)

Period: January 1, 2021 through December 31, 2021 Nuclides Released Continuous Mode

1. Fission Gases Unit Quarter 1 Quarter 2 Quarter3 Quarter4 Unidentified Ci 8.00E+OO 8.21E+00 2.76E+OO

<LLD Ar-41 Ci

<LLD

<LLD Kr-8Sm Ci

<LLD 2.07E+00 2.56E+OO 8.44E-02 Kr-87 Ci

<LLD 2.26E-02

<LLD

<LLD Kr-88 Ci

<LLD

<LLD Xe-133m Ci

<LLD

<LLD Xe-133 Ci

<LLD 4.44E+00 1.6SE+01

<LLD Xe-13Sm Ci

<LLD

<LLD Xe-135 Ci 7.58E+00 4.15E+00 1.09E+00 1.SGE-01 Xe-138 Ci

<LLD 3.62E+00 1.47E+00

<LLD Total For Period Ci 1.56E+01 2.25E+01 2.44E+01 2.40E-01

2. Iodines 1-131 Ci 4.0SE-05 S.94E-05 6.9SE-0S 1.34E-04 1-132 Ci

<LLD 2.26E-0S

<LLD

<LLD 1-133 Ci 1.38E-04 2.84E-04 2.00E-04 2.68E-04 1-135 Ci

<LLD 1.64E-04 6.74E-05 4.82E-05 Total For Period Ci 1.78E-04 4.74E-04 3.37E-04 4.S0E-04

3. Particulates Sr-89 Ci 7.37E-0S 6.07E-0S 6.48E-0S 4.SGE-05 Sr-90 Ci

<LLD

<LLD Cs-134 Ci

<LLD

<LLD Cs-137 Ci 2.83E-07

<LLD 1.72E-07

<LLD Ba-140 Ci 8.26E-06 1.l0E-05 1.17E-05 7.G0E-06 La-140 Ci

<LLD

<LLD Cr-51 Ci

<LLD

<LLD Mn-54 Ci

<LLD

<LLD Co-58 Ci

<LLD

<LLD Co-60 Ci 3.79E-07

<LLD S.39E-07 S.26E-06 Ag-110m Ci

<LLD

<LLD Ce-141 Ci

<LLD

<LLD Ce-144 Ci

<LLD

<LLD Zn-65 Ci

<LLD

<LLD Total For Period Ci 8.26E-0S 7.17E-0S 7.84E-OS S.84E-0S

4. Tritium H-3 Ci 4.0SE-00 2.33E+00 8.77E+00 3.20E+00 S. Gross Alpha Gross Alpha Ci

<LLD

6. Carbon-14 C-14 Ci 9.49E+00 9.49E+00 9.49E+00 9.49E+OO 20 Unit: Peach Bottom Batch Mode Quarter Quarter Quarter Quarter 1

2 3

4

<LLD

Peach Bottom Atomic Power Station Unit 2 and 3 Licensee:

Exelon Generation Company, LLC PSEG Nuclear, LLC Gaseous Effluents Release Point: Ground-Level (Units 2 and 3 Reactor Building Exhaust Vents and Abnormal Releases)

Period: January 1, 2021 through December 31, 2021 Unit: Peach Bottom Nuclldes Released Continuous Mode Batch Mode Quarter Quarter Quarter Quarter

1. Fission Gases Unit Quarter 1 Quarter 2 Quarter 3 Quarter4 1

2 3

4 Kr-85 Ci

<LLD

<LLD Kr-85m Ci

<LLD

<LLD Kr-87 Ci

<LLD

<LLD Kr-88 Ci

<LLD

<LLD Xe-133 Ci

<LLD

<LLD Xe-135 Ci

<LLD

<LLD Xe-135m Ci

<LLD

<LLD Xe-138 Ci

<LLD

<LLD Ar-41 Ci

<LLD

<LLD Unidentified Ci 7.89E+Ol 7.53E+Ol 5.53E+0l 6.12E+00

<LLD

<LLD Total For Period Ci 7.89E+Ol 7.53E+Ol 5.53E+0l 6.12E+00

<LLD

2. Iodines 1-131 Ci 1.65E-05 7.46E-05 1.39E-04 3.47E-04

<LLD

<LLD 1-132 Ci

<LLD

<LLD 1-133 Ci 1.24E-04 4.47E-04 8.09E-04 1.98E-04

<LLD

<LLD 1-135 Ci

<LLD

<LLD Total For Period Ci 1.41E-04 5.22E-04 9.48E-03 5.45E-04

<LLD

3. Particulates Sr-89 Ci

<LLD

<LLD Sr-90 Ci

<LLD

<LLD Cs-134 Ci

<LLD

<LLD Cs-137 Ci

<LLD

<LLD Ba-140 Ci

<LLD

<LLD La-140 Ci

<LLD

<LLD Cr-51 Ci

<LLD

<LLD Mn-54 Ci

<LLD 1.65E-06

<LLD 4.36E-06

<LLD

<LLD Co-58 Ci

<LLD

<LLD Co-60 Ci

<LLD

<LLD 5.83E-05

<LLD

Sb-124 Ci

<LLD

<LLD Ce-141 Ci

<LLD

<LLD Ce-144 Ci

<LLD

<LLD Zn-65 Ci

<LLD

<LLD Total For Period Ci

<LLD 1.65E-06

<LLD 6.27E-05

<LLD

4. Tritium ij}'\\

H-3 Ci 3.84E+0l 5.35E+0l 1.77E+0l 1.40E+0l

<LLD

5. Gross Alpha

~

Gross Alpha Ci

<LLD

6. Carbon-14 C-14 Ci 2.94E-01 2.94E-01 2.94E-01 2.94E-01

<LLD

<LLD 21

Peach Bottom Atomic Power Station Unit 2 and 3 Licensee:

Liquid Effluents - Summation of All Releases Period: January 1, 2021 to December 31, 2021 A. Fission & Activation Gases Units Quarter 1 Quarter2

1. Total Release (not including tritium, gases 8.41E-04 1.39E-04

& alpha)

Ci

2. Average diluted concentration for the 1.14E-10 9.40E-11 Period

µCi/ ml

3. Percent of applicable limit Total Body Dose*

7.99E-04%

2.29E-04%

Organ Dose*

2.61E-04%

7.59E-05%

ODCMS 3.8.B.2.a and ODCMS 3.8.B.2.b (page 7) define the dose limit B. Tritium

1. Total Release Ci 4.06E+00 2.13E+00

2. Average diluted concentration for the 6.SlE-09 3.19E-09 Period

µCi/ ml

3. Percent of applicable limit*

6.SlE-04%

3.19E-04%

lOx 10CFR20 Limit of 1.00E-03 µCi/ ml; ODCMS 3.8.B.1.a C. Dissolved & Entrained Gases

1. Total Release Ci 1.67E-0S

<LLD

2. Average diluted concentration for the 2.2SE-12

<LLD Period

µCi/ ml

3. Percent of ODCM limit' 1.12E-06%

<LLD

ODCMS 3.8.B.1.b Limit for all noble gases is 2.00E-04 µCi/ ml D. Gross Alpha Activity

1. Total Release Ci I

<LLD I

<LLD E. Volume of Waste Released (prior to 1.72E+08 1.71E+08 dilution)

Liters F. Volume of Dilution Water Used During 6.32E+l1 6.69E+ll Period Liters 22 I

Exelon Generation Company, LLC PSEG Nuclear, LLC Unit: Peach Bottom Est. Total Quarter3 Quarter4 Error%

1.l0E-06 2.77E-0S 1.60E+0l 1.2SE-12 4.72E-12 3.68E-05%

1.0SE-03%

1.7SE-05%

3.18E-04%

Est. Total Error%

1.61E+00 3.77E+00 6.40E+00 2.38E-09 S.71E-09 2.38E-04%

S.71E-04%

Est. Total Error%

<LLD 2.92E-06 2.80E+0l

<LLD 4.97E-13

<LLD%

2.48E-07%

Est. Total Error%

<LLD I

<LLD 2.30E+0l 1.72E+08 1.73E+08 6.78E+l1 6.66E+11

Peach Bottom Atomic Power Station Unit 2 and 3 Licensee:

Exelon Generation Company, LLC PSEG Nuclear, LLC Liquid Effluents Release Points-Liquid Radwaste, RHR Leaks and Groundwater Period: January 1, 2021 through December 31, 2021 Unit: Peach Bottom Nuclides Released Continuous Mode Batch Mode Unit Quarter 1 Quarter2 Quarter 3 Quarter4 Quarter 1 Quarter 2 Quarter 3 Quarter4 Sr-89 Ci

<LLD

<LLD Sr-90 Ci

<LLD

<LLD Cs-134 Ci

<LLD

<LLD Cs-137 Ci

<LLD

<LLD 8.SGE-07 1.73E-07 7.SBE-07

<LLD 1-131 Ci

<LLD

<LLD Co-58 Ci

<LLD

<LLD Co-60 Ci

<LLD

<LLD 8.43E-06 2.03E-07 2.0SE-07 1.23E-05 Fe-59 Ci

<LLD

<LLD Zn-65 Ci

<LLD

<LLD Mn-54 Ci

<LLD

<LLD 3.68E-06 4.BSE-07 1.36E-07 S.19E-06 Cr-51 Ci

<LLD

<LLD Zr-95 Ci

<LLD

<LLD Nb-95 Ci

<LLD

<LLD Mo-99 Ci

<LLD

<LLD Tc-99m Ci

<LLD

<LLD Ba-140 Ci

<LLD

<LLD La-140 Ci

<LLD

<LLD 5.67E-05 1.17E-04

<LLD 9.92E-06 Ce-141 Ci

<LLD

<LLD Ag-ll0m Ci

<LLD

<LLD 2.0GE-05

<LLD

<LLD Fe-55 Ci

<LLD

<LLD Sb-124 Ci

<LLD

<LLD 4.32E-04

<LLD

<LLD Sb-125 Ci

<LLD

<LLD 3.40E*0S

<LLD

<LLD Ni-63 Ci

<LLD

~

A H-3 Ci 1.54E+00 1.27E+00 1.61E+00 4.87E-01 2.52E+00 8.64E*0l 2.0BE-03 3.28E-00 P-32 Ci

<LLD

<LLD Total for Period Ci 1.54E+00 1.27E+00 1.61E+00 4.87E-01 2.52E+00 8.64E-01 2.0BE-03 3.28E-00

"' { i'[

r, tl

,!'i>'

Xe-133 Ci

<LLD

<LLD 1.67E-05

<LLD

<LLD 2.92E-06 Xe-135 Ci

<LLD

<LLD Xe-138 Ci

<LLD

<LLD Total for Period (ex-tritium, Ci

<LLD

<LLD 8.41E-04 1.39E-04 1.lOE-06 2.77E-05 gases and alpha) 23

Peach Bottom Atomic Power Station Unit 2 and 3 Licensee:

Exelon Generation Company, LLC PSEG Nuclear, LLC ATTACHMENT 3: SOLID WASTE AND IRRADIATED FUEL SHIPMENTS 24

Peach Bottom Atomic Power Station Unit 2 and 3 Solid Waste Shipped 1.TvDe of Waste Licensee:

A: Spent Resin, Filters, Sludges, Evaporator Bottoms, etc.

B: Dry Compressible Waste, Contaminated Equipment, etc.

C: Irradiated Components, Control Rods, etc.

D: Other (Oil, SBLC}

2.Estimate of Major Nuclide Composition (by type of waste)

a. Spent-Resin, Filters, Sludges, Evaporator Bottoms, etc.

Abundance%

Nuclide (no cutoff)

Activity (Ci)

H-3 0.16%

4.22E-01 Nuclide Ag-110m C-14 0.54%

1.39E+OO Sb-124 Cr-51 0.00%

7.60E-07 Sb-125 Mn-54 2.04%

5.22E+OO 1-131 Fe-55 16.95%

4.34E+01 Cs-134 Fe-59 0.00%

1.75E-05 Cs-137 Co-57 0.00%

1.26E-02 Ba-140 Co-58 0.00%

1.08E-02 La-140 Co-60 73.39%

1.88E+02 Ce-141 Ni-63 1.01%

2.59E+OO Ce-144 Zn-65 2.25%

5.76E+OO Pu-238 Se-75 0.00%

1.21 E-03 Pu-239 Sr-89 0.00%

8.95E-06 Pu-241 Sr-90 0.01%

1.75E-02 Am-241 Zr-95 0.00%

3.15E-05 Cm-242 Nb-95 0.00%

7.00E-05 Cm-244 25 Exelon Generation Company, LLC PSEG Nuclear, LLC Units 2021 Est. error%

m3 8.42E+01 Ci 2.56E+02 2.50E+01 m3 7.41E+02 Ci 1.10E+02 2.50E+01 m3 O.OOE+OO Ci O.OOE+OO 2.50E+01 m3 4.21E+01 Ci 1.50E-03 2.50E+01 Abundance%

(no cutoff)

Activity (Ci) 0.21%

5.35E-01 0.00%

3.86E-05 0.01%

3.48E-02 0.00%

O.OOE+OO 0.09%

2.31 E-01 3.29%

8.43E+OO 0.00%

O.OOE+OO 0.00%

1.70E-07 0.02%

5.35E-02 0.00%

3.49E-04 0.00%

2.25E-05 0.01%

2.02E-02 0.00%

1.92E-04 0.00%

5.72E-06 0.00%

2.51 E-04

Peach Bottom Atomic Power Station Unit 2 and 3 Licensee:

b. Dry, Compressible Waste, Contaminated Equipment, etc.

Waste Class A Abundance%

Sb-125 Nuclide (no cutoff)

Activity (Ci)

Cs-137 H-3 0.13%

1.46E-01 Ce-141 C-14 0.00%

2.95E-03 Ce-144 Cl-36 0.00%

6.01 E-05 Sm-151 Ar-39 0.00%

3.13E-05 Eu-152 Cr-51 0.04%

4.59E-02 Eu-154 Mn-53 0.00%

8.41 E-07 Eu-155 Mn-54 0.15%

1.68E-01 Tb-158 Fe-55 30.5%

3.. 35E+01 Ho-166m Fe-59 0.01%

1.44E-02 Pu-238 Co-57 0.00%.

3.22E-04 Pu-239 Co-58 0.03%

3.67E-02 Pu-240 Co-60 64.33%

7.07E+01 Pu-241 Ni-59 0.02%

1.92E-02 Cm-242 Ni-63 4.35%

4.78E-OO Cm-243 Zn-65 0.05%

5.46E-02 Cm-244 Cs-137 1.97%

5.06E-02 Ce-141 0.02%

4.40E-04 Ce-144 0.22%

5.61E-03 Sr-89 0.00%

5.82E-17 Sr-90 0.00%

9.31E-04 Nb-94 0.00%

2.94E-5 Nb-95 0.00%

1.81E-13 Mo-93 0.00%

4.62E-05 Tc-99 0.00%

9.0lE-06 Ag-110m 0.01%

1.21 E-02 Sn-121m 0.00%

1.11 E-06 Sb-124 0.00%

1.59E-03 26 Exelon Generation Company, LLC PSEG Nuclear, LLC 0.06%

6.14E-02 0.26%

2.91 E-01 0.00%

8.09E-04 0.00%

3.71 E-03 0.00%

1.77E-05 0.00%

2.89E-03 0.00%

2.88E-04 0.00%

7.02E-06 0.00%

6.45E-07 0.00%

1.14E-05 0.00%

7.67E-04 0.00%

1.35E-04 0.00%

1.35E-04 0.02%

2.28E-02 0.00%

4.67E-08 0.00%

1.04E-03 0.00%

9.54E-04

Peach Bottom Atomic Power Station Unit 2 and 3 Waste Class C Abundance Nuclide

% (no cutoff)

Activitv (Ci)

NIA NIA NIA NIA NIA NIA NIA NIA NIA NIA NIA NIA NIA NIA NIA NIA NIA NIA NIA NIA NIA NIA NIA NIA NIA NIA NIA

c. Irradiated Components, Control Rods, etc Abundance Nuclide

% (no cutoff)

Activitv (Ci)

NIA NIA NIA NIA NIA NIA NIA NIA NIA NIA NIA NIA NIA NIA NIA NIA NIA NIA

d. Other: Oil Abundance%

Nuclide (no cutoff)

Activity (Ci)

H-3 0.00%

0.00E+00 Cr-51 12.48%

1.87E-04 Mn-54 2.34%

3.50E-05 Fe-55 11.69%

1.75E-04 Fe-59 3.82%

5.72E-05 Co-57 0.08%

1.21 E-06 Co-58 12.60%

6.43E-04 Co-60 42.97%

6.43E-04 Licensee:

Nuclide NIA NIA NIA NIA NIA NIA NIA NIA NIA Nuclide NIA NIA NIA NIA NIA Nuclide Ni-63 Zn-65 Ag-110m Sb-124 Cs-137 Ce-141 Ce-144 27 Exelon Generation Company, LLC PSEG Nuclear, LLC Abundance

% (no cutoff)

Activity (Ci)

NIA NIA NIA NIA NIA NIA NIA NIA NIA NIA NIA NIA NIA NIA NIA NIA NIA NIA Abundance

% (no cutoff)

Activity (Ci)

NIA NIA NIA NIA NIA NIA NIA NIA NIA NIA Abundance%

(no cutoff)

Activity (Ci) 0.95%

1.42E-05 7.68%

1.15E-04 2.89%

4.33E-05 0.42%

6.22E-05 1.33%

1.99E-05 0.22%

3.27E-06 0.53%

7.87E-06

Peach Bottom Atomic Power Station Unit 2 and 3

3. Solid Waste Disoosition Number of shipments Mode of Transportation Hittman Transport 13 Services Hittman Transport 4

Services Hittman Transport 2

Services Hittman Transport 19 Services 1

Landstar - Ranger Irradiated Fuel Shipments Licensee:

Destination Exelon Generation Company, LLC PSEG Nuclear, LLC Energy Solutions Services (CVRF) Bear Creek Operations Energy Solutions Services (GRF) Gallaher Road Operations Energy Solutions - BWF Energy Solutions LLC - Clive Disposal Site - Containerized Waste Facility Toxco Inc. - Oak Ridge, TN No shipment of irradiated fuel was made during the reporting period of 2021.

Changes to Process Control Program (PCP)

There were no changes made to RW-AA-100 "Process Control Program for Radioactive Waste" during the 2021 reporting period.

28

Peach Bottom Atomic Power Station Unit 2 and 3 Licensee:

Exelon Generation Company, LLC PSEG Nuclear, LLC ATTACHMENT 4: RADIOLOGICAL IMPACT ON MAN 29

Peach Bottom Atomic Power Station Unit 2 and 3 Radiological Impact on Man Applicable Estimated Effluent Organ Dose Noble Gas Gamma -

1.18E-01 Air Dose Noble Gas Beta - Air 8.09E-02 Dose Total Noble Gas Body 1.14E-01 (gamma)

Noble Gas Skin 1.49E-01 (Beta)

Gaseous

Iodine, Particulate, Bone 1.43E-01 Carbon-14 &

Tritium Gaseous

Iodine, Thyroid 8.76E-03 Particulate &

Tritium Total Liquid Body 9.40E-05 (gamma)

Liquid GI-LLI 3.47E-04 Direct Total 0

Radiation Body 40 CFR 190 Doses Applicable Estimated Effluent Organ Dose Total Dose Total 1.14E-01 Body Total Dose Thyroid 8.76E-03 Total Dose Bone 1.43E-01 Total Dose Total 1.14E-01 Body Total Dose Bone 1.43E-01 Total Dose Thyroid 1.27E-01 Age Group All All All All Child Infant Child Adult All Age Group All All All All All All Licensee:

Exelon Generation Company, LLC PSEG Nuclear, LLC Location

% of Distance Direction Applicable (meters)

(toward)

Limit Limit Unit 1.10E+03 SSE 5.90E-01 2.00E+0l mrad 1.10E+03 SSE 2.02E-01 4.00E+0l mrad 1.10E+03 SSE 1.14E+00 1.00E+0l mrem 1.10E+03 SSE 4.97E-01 3.00E+0l mrem 1.S0E+03 SW 4.77E-01 3.00E+0l mrem 1.S0E+03 SW 2.92E-02 3.00E+0l mrem 1.57E-03 6.00E+00 mrem Site Boundary 4.91E-04 2.00E+0l mrem 1.19E+03 SSE 0.00E+00 2.SOE+Ol mrem Location

% of Distance Direction Applicable (meters)

(toward)

Limit Limit Unit 1.19E+03 SSE 4.56E-01 2.S0E+0l mrem 1.19E+03 SSE 1.17E-02 7.S0E+0l mrem 1.19E+03 SSE 5.72E-01 2.S0E+0l mrem 1.19E+03 SSE 3.B0E+00 3.00E+00 mrem 1.19E+03 SSE 4.77E+00 3.00E+00 mrem 1.19E+03 SSE 2.30E-01 S.S0E+0l mrem 30

Peach Bottom Atomic Power Station Unit 2 and 3 Licensee:

Exelon Generation Company, LLC PSEG Nuclear, LLC ATTACHMENT 5: METEOROLOGICAL DATA 31

Peach Bottom Atomic Power Station Licensee:

Exelon Generation Company, LLC Unit 2 and 3 PSEG Nuclear, LLC Peach Bottom Atomic Power Station Period of Record: January -

March 2021 Stability Class - Extremely Unstable

- 150Ft-33Ft Delta-T (F)

Winds Measured at 33 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24

> 24 Total N

2 3

1 0

0 0

6 NNE 4

1 0

0 6

NE 6

3 0

0 0

0 9

ENE 12 2

0 0

14 E

9 12 0

0 0

0 21 ESE 1

9 1

0 0

0 11 SE 1

7 1

0 0

0 9

SSE 0

2 4

3 0

0 9

s 1

2 5

1 0

0 9

SSW 1

0 2

0 0

0 3

SW 7

1 0

0 0

0 8

WSW 7

1 1

0 0

0 9

w 5

3 2

0 0

0 10 WNW 3

5 3

1 0

0 12 NW 8

6 5

4 0

0 23 NNW 0

11 12 3

0 0

26 Variable 0

0 0

Total 67 68 37 13 0

0 185 Hours of calm in this stability class:

0 Hours of missing wind measurements in this stability class:

0 Hours of missing stability measurements in all stability classes:

3 32

Peach Bottom Atomic Power Station Licensee:

Exelon Generation Company, LLC Unit 2 and 3 PSEG Nuclear, LLC Peach Bottom Atomic Power Station Period of Record: January -

March 2021 Stability Class - Moderately Unstable 150Ft-33Ft Delta-T (F)

Winds Measured at 33 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24

> 24 Total N

2 5

1 2

0 0

10 NNE 5

8 2

1 0

0 16 NE 11 0

0 0

11 ENE 11 0

0 0

11 E

3 6

0 0

9 ESE 4

6 0

0 0

0 10 SE 0

7 1

0 0

0 8

SSE 0

0 2

0 0

0 2

s 1

1 2

0 0

0 4

SSW 1

1 1

0 0

0 3

SW 2

0 3

0 0

0 5

WSW 2

0 2

0 0

0 4

w 1

1 6

1 3

0 12 WNW 0

4 14 5

0 0

23 NW 0

2 11 17 2

0

32.

NNW 1

7 20 1

0 0

29 Variable 0

0 0

Total 4 4 4 8 65 27 5

0 189 Hours of calm in this stability class:

0 Hours of missing wind measurements in this stability class:

0 Hours of missing stability measurements in all stability classes:

3 33

Peach Bottom Atomic Power Station Licensee:

Exelon Generation Company, LLC Unit 2 and 3 PSEG Nuclear, LLC Peach Bottom Atomic Power Station Period of Record: January -

March 2021 Stability Class - Slightly Unstable 150Ft-33Ft Delta-T (F)

Winds Measured at 33 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24

> 24 Total 0

1 1

1 0

0 3

NNE 3

3 1

1 0

0 8

NE 9

2 0

0 0

0 11 ENE 4

1 0

0 0

0 5

E 2

4 0

0 0

0 6

ESE 1

4 0

0 0

0 5

SE 1

3 0

0 0

0 4

SSE 0

2 4

0 0

0 6

s 0

2 3

0 0

0 5

SSW 0

0 1

0 0

0 1

SW 0

1 2

1 0

0 4

WSW 0

0 2

0 1

0 3

w 0

1 6

1 0

0 8

WNW 1

6 10 3

0 0

20 NW 1

3 13 13 0

0

.30 NNW 0

7 15 9

1 0

32 Variable 0

0 0

Total 22 40 58 29 2

0 151 Hours of calm in this stability class:

0 Hours of missing wind measurements in this stability class:

0 Hours of missing stability measurements in all stability classes:

3 34

Peach Bottom Atomic Power Station Licensee:

Exelon Generation Company, LLC Unit 2 and 3 PSEG Nuclear, LLC Peach Bottom Atomic Power Station Period of Record: January -

March 2021 Stability Class - Neutral-150Ft-33Ft Delta-T (F)

Winds Measured at 33 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24

> 24 Total N

20 42 15 8

0 0

85 NNE 17 35 8

0 0

0 60 NE 43 13 1

0 0

0 57 ENE 46 1

0 0

47 E

35 10 0

0 0

0 45 ESE 12 13 1

0 0

0 26 SE 0

26 9

0 0

0 35 SSE 0

16 11 0

0 0

27 s

2 8

12 0

0 0

22 SSW 2

2 1

0 0

0 5

SW 1

3 11 0

0 0

15 WSW 3

6 16 2

1 0

28 w

2 14 32 7

0 0

55 WNW 4

36 83 11 0

0 134 NW 5

52 98 60 1

0 216 NNW 8

77 69 25 0

0 179 Variable 0

0 0

Total 200 354 367 113 2

0 1036 Hours of calm in this stability class:

0 Hours of missing wind measurements in this stability class:

0 Hours of missing stability measurements in all stability classes:

3 35

Peach Bottom Atomic Power Station Licensee:

Exelon Generation Company, LLC Unit 2 and 3 PSEG Nuclear, LLC Peach Bottom Atomic Power Station Period of Record: January - March 2021 Stability Class - Slightly Stable

- 150Ft-33Ft Delta-T (F)

Winds Measured at 33 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24

> 24 Total N

7 2

0 0

9 NNE 10 0

0 0

10 NE 7

0 0

0 7

ENE 13 1

0 0

14 E

13 1

0 0

14 ESE 14 6

0 0

20 SE 7

11 1

0 0

0 19 SSE 5

7 3

0 0

0 15 s

8 6

2 0

0 0

16 SSW 3

6 0

0 0

0 9

SW 4

15 4

0 0

0 23 WSW 7

44 9

0 0

0 60 w

9 39 11 0

0 0

59 WNW 13 20 5

0 0

0 38 NW 9

19 1

0 0

0.

29 NNW 12 22 0

0 0

0 34 Variable 0

0 0

Total 141 199 36 0

0 0

376 Hours of calm in this stability class:

0 Hours of missing wind measurements in this stability class:

0 Hours of missing stability measurements in all stability classes:

3 36

Peach Bottom Atomic Power Station Licensee:

Exelon Generation Company, LLC Unit 2 and 3 PSEG Nuclear, LLC Peach Bottom Atomic Power Station Period of Record: January -

March 2021 Stability Class - Moderately Stable

- 150Ft-33Ft Delta-T (F)

Winds Measured at 33 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24

> 24 Total 10 0

0 0

10 NNE 7

0 0

0 7

NE 6

0 0

0 6

ENE 4

0 0

0 4

E 14 0

0 0

14 ESE 9

0 0

0 9

SE 2

0 0

0 2

SSE 1

0 0

0 1

s 2

0 0

0 2

SSW 9

3 0

0 0

0 12 SW 8

4 0

0 0

0 12 WSW 8

10 1

0 0

0 19 w

15 4

0 0

19 WNW 12 0

0 0

12 NW 8

0 0

.0 8

NNW 2

1 0

0 0

0 3

Variable 0

0 0

Total 11 7 22 1

0 0

0 140 Hours of calm in this stability class:

1 Hours of missing wind measurements in this stability class:

0 Hours of missing stability measurements in all stability classes:

3 37

Peach Bottom Atomic Power Station Licensee:

Exelon Generation Company, LLC Unit 2 and 3 PSEG Nuclear, LLC Peach Bottom Atomic Power Station Period of Record: January - March 2021 Stability Class - Extremely Stable

- 150Ft-33Ft Delta-T (F)

Winds Measured at 33 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24

> 24 Total N

4 0

0 0

4 NNE 1

0 0

0 1

NE 4

0 0

0 4

ENE 7

0 0

0 7

E 6

0 0

0 6

ESE 6

0 0

0 6

SE 1

0 0

0 1

SSE 0

0 0

s 1

0 0

0 1

SSW 3

0 0

0 3

SW 3

0 0

0 3

WSW 15 1

0 0

16 w

8 0

0 0

8 WNW 7

0 0

0 7

NW 5

0 0

0 5

NNW 7

0 0

0 7

Variable 0

0 0

Total 78 1

0 0

79 Hours of calm in this stability class:

3 Hours of missing wind measurements in this stability class:

0 Hours of missing stability measurements in all stability classes:

3 38

Peach Bottom Atomic Power Station Licensee:

Exelon Generation Company, LLC Unit 2 and 3 PSEG Nuclear, LLC Peach Bottom Atomic Power Station Period of Record: January -

March 2021 Stability Class -

Extremely Unstable 316Ft-33Ft Delta-T (F)

Winds Measured at 320 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24

> 24 Total N

0 0

0 NNE 0

0 0

NE 0

0 0

ENE 0

0 0

E 0

0 0

ESE 0

0 2

0 0

0 2

SE 0

0 0

1 0

0 1

SSE 0

0 0

s 0

0 0

SSW 0

0 0

SW 0

0 0

WSW 0

0 0

w 0

0 0

WNW 0

0 0

NW 0

0 0

NNW 0

0 0

Variable 0

0 0

Total 0

0 2

1 0

0 3

Hours of calm in this stability class:

0 Hours of missing wind measurements in this stability class:

0 Hours of missing stability measurements in all stability classes :

3 39

Peach Bottom Atomic Power Station Licensee:

Exelon Generation Company, LLC Unit 2 and 3 PSEG Nuclear, LLC Peach Bottom Atomic Power Station Period of Record: January - March 2021 Stability Class - Moderately Unstable 316Ft-33Ft Delta-T (F)

Winds Measured at 320 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24

> 24 Total 0

0 0

NNE 0

0 0

NE 0

0 0

ENE 0

0 0

E 0

1 0

0 0

0 1

ESE 0

0 0

SE 0

0 1

1 0

0 2

SSE 0

0 0

s 0

0 0

0 2

SSW 0

0 0

SW 0

0 0

WSW 0

0 0

w 0

0 0

WNW 0

0 0

NW 0

0 0

NNW 0

0 0

Variable 0

0 0

Total 0

1 1

1 2

0 5

Hours of calm in this stability class:

0 Hours of missing wind measurements in this stability class:

0 Hours of missing stability measurements in all stability classes:

3 40

Peach Bottom Atomic Power Station Licensee:

Exelon Generation Company, LLC Unit 2 and 3 PSEG Nuclear, LLC Peach Bottom Atomic Power Station Period of Record: January -

March 2021 Stability Class - Slightly Unstable 316Ft-33Ft Delta-T (F)

Winds Measured at 320 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-1 2 13-18 19-24

> 24 Total 0

0 0

NNE 0

2 0

0 0

0 2

NE 0

0 0

ENE 0

2 0

0 0

0 2

E 2

8 0

0 0

0 10 ESE 0

6 0

0 0

0 6

SE 0

0 1

0 0

0 1

SSE 0

0 0

2 0

0 2

s 0

0 0

3 1

0 4

SSW 0

0 0

SW 0

0 1

0 0

0 1

WSW 0

0 0

w 0

0 2

2 0

1 5

WNW 0

0 0

2 5

0 7

NW 0

0 0

0 2

NNW 0

0 0

1 0

0 1

Variable 0

0 0

Total 2

18 4

10 8

1 43 Hours of calm in this stability class:

0 Hours of missing wind measurements in this stability class :

0 Hours of missing stability measurements in all stability classes:

3 41

Peach Bottom Atomic Power Station Licensee:

Exelon Generation Company, LLC Unit 2 and 3 PSEG Nuclear, LLC Peach Bottom Atomic Power Station Period of Record: January -

March 2021 Stability Class - Neutral-316Ft-33Ft Delta-T (F)

Winds Measured at 320 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24

> 24 Total N

3 21 37 26 10 6

103 NNE 2

26 30 8

4 2

72 NE 10 26 15 10 3

0 64 ENE 10 24 13 1

0 0

48 E

11 30 13 2

0 0

56 ESE 4

13 2 9 14 0

0 60 SE 2

12 34 14 0

0 62 SSE 0

4 19 11 0

0 34 s

0 2

14 29 6

0 51 SSW 1

4 3

11 1

0 20 SW 0

2 8

6 2

1 19 WSW 0

3 3

17 3

3 29 w

0 9

13 18 22 4

66 WNW 0

11 19 56 50 12 148 NW 0

12 39 95 113 31 290 NNW 0

37 91 66 53 6

253 Variable 0

0 0

Total 43 236 380 384 267 65 1375 Hours of calm in this stability class:

0 Hours of missing wind measurements in this stability class:

0 Hours of missing stability measurements in all stability classes:

3 42

Peach Bottom Atomic Power Station Licensee:

Exelon Generation Company, LLC Unit 2 and 3 PSEG Nuclear, LLC Peach Bottom Atomic Power Station Period of Record: January -

March 2021 Stability Class - Slightly Stable 316Ft-33Ft Delta-T (F)

Winds Measured at 320 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24

> 24 Total N

2 13 13 3

0 0

31 NNE 3

10 9

0 0

0 22 NE 0

9 6

0 0

0 15 ENE 1

7 2

0 0

0 10 E

1 11 11 4

0 0

27 ESE 0

4 18 7

1 0

30 SE 2

11 11 5

1 0

30 SSE 2

2 11 8

0 0

23 s

1 2

10 13 3

0 29 SSW 2

2 2

5 0

0 11 SW 1

10 14 9

3 0

37 WSW 1

3 24 26 2

0 56 w

2 1

16 37 4

1 61 WNW 1

6 6

22 15 1

51 NW 0

8 20 23 4

1 56 NNW 1

8 24 15 0

0 48 Variable 0

0 0

Total 20 107 197 177 33 3

537 Hours of calm in this stability class:

0 Hours of missing wind measurements in this stability class:

0 Hours of missing stability measurements in all stability classes:

3 43

Peach Bottom Atomic Power Station Licensee:

Exelon Generation Company, LLC Unit 2 and 3 PSEG Nuclear, LLC Peach Bottom Atomi c Power Stati o n Period of Record: January -

March 2021 Stability Class - Moderately Stable 316Ft-33Ft Delta-T (F)

Winds Measured at 320 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24

> 24 Total N

0 3

0 0

3 NNE 0

0 2

0 0

0 2

NE 0

2 1

0 0

0 3

ENE 2

2 0

0 0

0 4

E 3

7 7

1 0

0 18 ESE 1

3 1

0 0

0 5

SE 1

2 7

2 0

0 12 SSE 0

5 3

2 0

0 10 s

1 3

6 2

0 0

12 SSW 2

2 7

0 0

0 11 SW 2

2 4

1 0

0 9

WSW 0

4 2

8 1

0 15 w

0 2

3 5

2 0

12 WNW 0

3 2

2 0

0 7

NW 0

4 4

0 0

0 8

NNW 0

5 2

0 0

0 7

Variable 0

0 0

Total 12 4 9 51 23 3

0 138 Hours of calm in this stability class:

0 Hours of missing wind measurements in this stability class:

0 Hours of missing stability measurements in all stability classes:

3 44

Peach Bottom Atomic Power Station Licensee:

Exelon Generation Company, LLC Unit 2 and 3 PSEG Nuclear, LLC Peach Bottom Atomic Power Station Period of Record: January -

March 2021 Stability Class -

Extremely Stable 316Ft-33Ft Delta-T (F)

Winds Measured at 320 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24

> 24 Total N

0 0

2 0

0 0

2 NNE 0

3 1

0 0

0 4

NE 0

0 0

ENE 0

0 1

0 0

0 1

E 0

0 0

ESE 0

0 0

SE 0

2 0

0 0

0 2

SSE 0

1 0

0 0

0 1

s 0

0 0

SSW 0

1 2

1 0

0 4

SW 1

1 9

1 0

0 12 WSW 1

1 2

3 0

0 7

w 0

4 7

2 0

0 13 WNW 0

3 2

0 0

0 5

NW 0

2 1

0 0

0.

3 NNW 0

2 0

0 0

0 2

Variable 0

0 0

Total 2

20 27 7

0 0

56 Hours of calm in this stability class:

0 Hours of missing wind measurements in this stability class :

0 Hours of missing stability measurements in all stability classes:

3 45

Peach Bottom Atomic Power Station Licensee:

Exelon Generation Company, LLC Unit 2 and 3 PSEG Nuclear, LLC Peach Bottom Atomic Power Station Period of Record: April -

June 2021 Stability Class -

Extremely Unstable 150Ft-33Ft Delta-T (F)

Winds Measured at 33 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24

> 24 Total N

2 14 3

0 0

0 19 NNE 2

14 0

0 0

0 16 NE 1 3 4

0 0

17 ENE 24 3

0 0

27 E

18 11 0

0 0

0 29 ESE 5

5 3

0 0

0 13 SE 0

14 4

0 0

0 18 SSE 0

10 12 1

0 0

23 s

1 7

12 0

0 0

20 SSW 1

0 1

0 0

0 2

SW 1

0 1

1 0

0 3

WSW 0

1 2

0 0

0 3

w 1

3 4

0 0

0 8

WNW 0

1 3

2 0

0 6

NW 5

3 4

0 0

0 12 NNW 3

14 39 2

0 0

58 Variable 0

0 0

Total 76 104 88 6

0 0

274 Hours of calm in this stability class:

0 Hours of missing wind measurements in this stability class:

0 Hours of missing stability measurements in all stability classes:

0 46

Peach Bottom Atomic Power Station Licensee:

Exelon Generation Company, LLC Unit 2 and 3 PSEG Nuclear, LLC Peach Bottom Atomic Power Station Period of Record: April -

June 2021 Stability Class - Moderately unstable

- 150Ft-33Ft Delta-T (F)

Winds Measured at 33 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24

> 24 Total N

6 10 0

0 0

0 16 NNE 5

6 0

0 0

0 11 NE 4

2 0

0 0

0 6

ENE 5

1 0

0 0

0 6

E 7

2 0

0 0

0 9

ESE 1

5 0

0 0

0 6

SE 2

2 1

0 0

0 5

SSE 1

14 11 0

0 0

26 s

0 15 12 0

0 0

27 SSW 0

2 3

0 0

0 5

SW 0

9 8

1 0

0 18 WSW 0

6 9

0 0

0 15 w

0 5

7 1

0 0

13 WNW 1

4 3

6 0

0 14 NW 2

13 16 7

0 0

38 NNW 0

15 43 10 0

0 68 Variable 0

0 0

Total 34 111 113 25 0

0 283 Hours of calm in this stability class:

0 Hours of missing wind measurements in this stability class:

0 Hours of missing stability measurements in all stability classes:

0 47

Peach Bottom Atomic Power Station Licensee:

Exelon Generation Company, LLC Unit 2 and 3 PSEG Nuclear, LLC Peach Bottom Atomic Power Station Period of Record: April -

June 2021 Stability Class - Slightly Unstable

- 150Ft-33Ft Delta-T (F)

Winds Measured at 33 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24

> 24 Total N

2 2

1 0

0 0

5 NNE 0

6 0

0 0

0 6

NE 1

1 0

0 0

0 2

ENE 7

0 0

0 7

E 6

0 0

0 6

ESE 3

2 0

0 0

0 5

SE 0

0 0

SSE 0

5 5

0 0

0 10 s

1 6

9 0

0 0

16 SSW 0

2 1

0 0

0 3

SW 0

5 4

0 0

0 9

WSW 0

1 4

0 0

0 5

w 0

4 8

0 0

0 12 WNW 0

4 3

2 0

0 9

NW 0

3 3

4 0

0 10 NNW 1

4 9

5 0

0 19 Variable 0

0 0

Total 21 45 47 11 0

0 124 Hours of calm in this stability class:

0 Hours of missing wind measurements in this stability class:

0 Hours of missing stability measurements in all stability classes:

0 48

Peach Bottom Atomic Power Station Licensee:

Exelon Generation Company, LLC Unit 2 and 3 PSEG Nuclear, LLC Peach Bottom Atomic Power Station Period of Record: April -

June 2021 Stability Class - Neutral 150Ft-33Ft Delta-T (F)

Winds Measured at 33 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24

> 24 Total N

14 36 3

0 0

0 53 NNE 11 21 0

0 0

0 32 NE 13 1

0 0

14 ENE 20 1

0 0

21 E

19 8

0 0

27 ESE 10 12 0

0 0

0 22 SE 8

33 10 0

0 0

51 SSE 17 55 14 0

0 0

86 s

20 44 12 0

0 0

76 SSW 7

17 3

0 0

0 27 SW 8

13 10 0

0 0

31 WSW 2

18 4

0 0

0 24 w

2 16 11 0

0 0

29 WNW 7

30 34 3

1 0

75 NW 12 23 47 18 0

0 100 NNW 10 25 14 4

0 0

53 Variable 0

0 0

Total 180 353 162 25 1

0 721 Hours of calm in this stability class:

1 Hours of missing wind measurements in this stability class:

0 Hours of missing stability measurements in all stability classes:

0 49

Peach Bottom Atomic Power Station Licensee:

Exelon Generation Company, LLC Unit 2 and 3 PSEG Nuclear, LLC Peach Bottom Atomic Power Station Period of Record: April -

June 2021 Stability Class - Slightly Stable 150Ft-33Ft Delta-T (F)

Winds Measured at 33 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24

> 24 Total N

8 4

0 0

12 NNE 11 0

0 0

11 NE 13 2

0 0

15 ENE 15 1

0 0

16 E

21 2

0 0

23 ESE 20 4

0 0

24 SE 28 6

0 0

34 SSE 22 29 4

0 0

0 55 s

30 27 8

0 0

0 65 SSW 13 9

0 0

22 SW 18 8

0 0

26 WSW 12 26 4

0 0

0 42 w

15 51 1

0 0

0 67 WNW 13 34 3

0 0

0 50 NW 16 21 0

0 0

0

37.

NNW 12 8

0 0

20 Variable 0

0 0

Total 267 232 20 0

0 0

519 Hours of calm in this stability class:

0 Hours of missing wind measurements in this stability class:

0 Hours of missing stability measurements in all stability classes:

0 so

Peach Bottom Atomic Power Station Licensee:

Exelon Generation Company, LLC Unit 2 and 3 PSEG Nuclear, LLC Peach Bottom Atomic Power Station Period of Record: April -

June 2021 Stability Class - Moderately Stable

- 150Ft-33Ft Delta-T (F)

Winds Measured at 33 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24

> 24 Total N

3 0

0 0

3 NNE 2

0 0

0 2

NE 4

0 0

0 4

ENE 0

0 0

E 9

0 0

0 9

ESE 6

0 0

0 6

SE 6

0 0

0 6

SSE 6

0 0

0 6

s 6

0 0

0 6

SSW 9

0 0

0 9

SW 15 1

0 0

16 WSW 27 20 1

0 0

0 48 w

14 9

1 0

0 0

24 WNW 7

5 0

0 0

0 12 NW 4

2 0

0 0

0

. 6 NNW 4

0 0

0 4

Variable 0

0 0

Total 122 37 2

0 0

0 161 Hours of calm in this stability class:

1 Hours of missing wind measurements in this stability class:

0 Hours of missing stability measurements in all stability classes:

0 51

Peach Bottom Atomic Power Station Licensee:

Exelon Generation Company, LLC Unit 2 and 3 PSEG Nuclear, LLC Peach Bottom Atomic Power Station Period of Record: April -

June 2021 Stability Class -

Extremely Stable 150Ft-33Ft Delta-T (F)

Winds Measured at 33 Feet Wind Speed ( in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24

> 24 Total N

3 0

0 0

3 NNE 3

0 0

0 3

NE 2

0 0

0 2

ENE 10 0

0 0

10 E

5 0

0 0

5 ESE 1

0 0

0 1

SE 6

0 0

0 6

SSE 2

0 0

0 2

s 2

0 0

0 2

SSW 4

0 0

0 4

SW 23 5

0 0

28 WSW 15 3

0 0

18 w

2 3

0 0

5 WNW 3

0 0

0 3

NW 2

0 0

0 2

NNW 6

0 0

0 6

Variable 0

0 0

Total 89 11 0

0 0

0 100 Hours of calm in this stability class:

0 Hours of missing wind measurements in this stability class:

0 Hours of missing stability measurements in all stability classes:

0 52

Peach Bottom Atomic Power Station licensee:

Exelon Generation Company, LLC Unit 2 and 3 PSEG Nuclear, LLC Peach Bottom Atomic Power Station Period of Record: April -

June 2021 Stability Class -

Extremely Unstable 316Ft-33Ft Delta-T (F)

Winds Measured at 320 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24

> 24 Total N

0 0

0 NNE 0

1 0

0 0

0 1

NE 0

1 0

0 0

0 1

ENE 0

2 0

1 0

0 3

E 0

6 0

0 0

0 6

ESE 0

2 3

0 0

0 5

SE 0

0 2

2 0

0 4

SSE 0

0 0

s 0

0 0

SSW 0

0 0

SW 0

0 0

WSW 0

0 0

w 0

0 0

WNW 0

0 0

NW 0

0 0

NNW 0

0 0

Variable 0

0 0

Total 0

12 5

3 0

0 20 Hours of calm in this stability class:

0 Hours of missing wind measurements in this stability class:

0 Hours of missing stability measurements in all stability classes:

0 53

Peach Bottom Atomic Power Station Licensee:

Exelon Generation Company, LLC Unit 2 and 3 PSEG Nuclear, LLC Peach Bottom Atomic Power Station Period of Record: April -

June 2021 Stability Class - Moderately Unstable 316Ft-33Ft Delta-T (F)

Winds Measured at 320 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24

> 24 Total N

0 0

0 NNE 0

1 0

0 0

0 1

NE 0

2 0

0 0

0 2

ENE 0

2 3

1 0

0 6

E 0

5 1

0 0

0 6

ESE 0

0 1

0 0

0 1

SE 0

0 6

3 0

0 9

SSE 0

0 0

s 0

0 0

SSW 0

0 0

SW 0

0 0

WSW 0

0 0

w 0

0 0

WNW 0

0 0

NW

.0 0

0 0

0

.0 0

NNW 0

0 0

Variable 0

0 0

Total 0

10 11 4

0 0

25 Hours of calm in this stability class:

0 Hours of missing wind measurements in this stability class:

0 Hours of missing stability measurements in all stability classes:

0 54

Peach Bottom Atomic Power Station Licensee:

Exelon Generation Company, LLC Unit 2 and 3 PSEG Nuclear, LLC Peach Bottom Atomic Power Station Period of Record: April -

June 2021 Stability Class - Slightly Unstable 316Ft-33Ft Delta-T (F)

Winds Measured at 320 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24

> 24 Total N

0 4

4 0

0 0

8 NNE 0

2 0

0 0

0 2

NE 1

0 0

0 1

ENE 1

3 4

0 0

0 8

E 1

7 0

0 0

0 8

ESE 0

4 4

0 1

0 9

SE 0

0 3

2 0

0 5

SSE 0

0 3

2 0

0 5

s 0

0 4

4 0

0 8

SSW 0

0 0

1 0

0 1

SW 0

0 0

WSW 0

0 0

1 0

0 1

w 0

0 0

6 0

0 6

WNW 0

0 2

3 7

NW 0

0 3

7 1

1 12 NNW 0

0 14 11 1

0 26 Variable 0

0 0

Total 3

20 41 34 5

4 107 Hours of calm in this stability class:

0 Hours of missing wind measurements in this stability class :

0 Hours of missing stability measurements in all stability classes:

0 55

Peach Bottom Atomic Power Station Licensee:

Exelon Generation Company, LLC Unit 2 and 3 PSEG Nuclear, LLC Peach Bottom Atomic Power Station Period of Record: April -

June 2021 Stability Class - Neutral 316Ft-33Ft Delta-T (F)

Winds Measured at 320 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24

> 24 Total N

3 17 19 9

0 0

48 NNE 2

11 11 7

0 0

31 NE 7

10 17 21 1

0 56 ENE 6

7 20 8

0 0

41 E

1 20 12 5

2 0

40 ESE 1

14 21 11 4

0 51 SE 0

21 32 20 0

0 73 SSE 1

17 36 7

1 0

62 s

3 16 73 59 2

0 153 SSW 0

14 47 4

0 0

65 SW 0

13 24 9

2 1

49 WSW 0

10 17 18 0

0 45 w

2 4

14 22 7

0 49 WNW 0

4 30 24 23 9

90 NW 3

14 36 58 44 15 170 NNW 2

13 65 41 14 2

137 Variable 0

0 0

Total 31 205 474 323 100 2 7 1160 Hours of calm in this stability class:

0 Hours of missing wind measurements in this stability class:

0 Hours of missing stability measurements in all stability classes:

0 56

Peach Bottom Atomic Power Station Licensee:

Exelon Generation Company, LLC Unit 2 and 3 PSEG Nuclear, LLC Peach Bottom Atomic Power Station Period of Record: April -

June 2021 Stability Class - Slightly Stable 316Ft-33Ft Delta-T (F)

Winds Measured at 320 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24

> 24 Total N

1 6

8 6

1 0

22 NNE 0

5 1

0 0

0 6

NE 1

1 2

0 0

0 4

ENE 2

3 1

0 0

0 6

E 1

3 8

4 0

0 16 ESE 3

8 7

6 0

0 24 SE 4

9 15 0

0 0

28 SSE 5

9 14 7

0 0

35 s

2 27 34 32 6

0 101 SSW 4

13 47 9

3 0

76 SW 6

25 12 6

0 0

49 WSW 0

9 9

7 2

0 27 w

2 10 13 16 4

0 45 WNW 0

7 13 36 4

0 60 NW 0

8 29 44 6

0 87 NNW 1

14 21 7

0 0

43 Variable 0

0 0

Total 32 157 234 180 26 0

629 Hours of calm in this stability class:

0 Hours of missing wind measurements in this stability class:

0 Hours of missing stability measurements in all stability classes:

0 57

Peach Bottom Atomic Power Station Licensee:

Exelon Generation Company, LLC Unit 2 and 3 PSEG Nuclear, LLC Peach Bottom Atomic Power Station Period of Record: April -

June 2021 Stability Class - Moderately Stable

- 316Ft-33Ft Delta-T (F)

Winds Measured at 320 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24

> 24 Total N

0 2

2 2

0 0

6 NNE 1

1 1

0 0

0 3

NE 0

1 0

0 0

0 1

ENE 0

0 0

E 0

0 1

0 0

0 1

ESE 0

1 0

0 0

0 1

SE 2

1 0

0 0

0 3

SSE 2

0 0

0 2

s 3

8 3

0 0

0 14 SSW 2

8 3

1 0

0 14 SW 2

19 11 3

0 0

35 WSW 0

8 14 1

0 0

23 w

2 7

8 2

3 0

22 WNW 1

6 9

4 1

0 21 NW.

1 4

9 6

0 0

20 NNW 1

3 4

4 0

0 12 Variable 0

0 0

Total 17 69 65 23 4

0 178 Hours of calm in this stability class:

0 Hours of missing wind measurements in this stability class:

0 Hours of missing stability measurements in all stability classes:

0 58

Peach Bottom Atomic Power Station Licensee:

Exelon Generation Company, LLC Unit 2 and 3 PSEG Nuclear, LLC Peach Bottom Atomic Power Station Period of Record: April -

June 2021 Stability Class -

Extremely Stable 316Ft-33Ft Delta-T (F)

Winds Measured at 320 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24

> 24 Total N

0 0

0 NNE 0

0 0

NE 0

0 0

ENE 0

0 0

E 0

0 0

ESE 0

2 1

0 0

0 3

SE 0

0 3

0 0

0 3

SSE 0

0 0

s 0

0 2

0 0

0 2

SSW 2

0 1

0 0

0 3

SW 2

9 1

0 0

0 12 WSW 1

1 6

2 0

0 10 w

0 3

5 2

0 0

10 WNW 0

2 1

0 0

0 3

NW 0

1 6

1 0

0 8

NNW 0

0 11 0

0 0

11 Variable 0

0 0

Total 5

18 37 5

0 0

65 Hours of calm in this stability class:

0 Hours of missing wind measurements in this stability class:

0 Hours of missing stability measurements in all stability classes:

0 59

Peach Bottom Atomic Power Station Licensee:

Exelon Generation Company, LLC Unit 2 and 3 PSEG Nuclear, LLC Peach Bottom Power Atomic Station Period of Record: July -

September 2021 Stability Class -

Extremely Unstable 150Ft-33Ft Delta-T (F)

Winds Measured at 33 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24

> 24 Total N

12 14 0

1 0

0 27 NNE 10 4

0 0

14 NE 13 1

0 0

14 ENE 7

0 0

0 7

E 12 1

0 0

13 ESE 5

7 0

0 0

0 12 SE 2

11 2

1 0

0 16 SSE 1

11 5

0 0

0 17 s

0 8

7 0

0 0

15 SSW 1

1 4

0 0

0 6

SW 0

0 1

0 0

0 1

WSW 0

1 0

0 0

0 1

w 0

1 1

0 0

0 2

WNW 2

2 3

0 0

0 7

NW 0

5 3

0 0

0 8

NNW 1

9 7

2 0

0 19 Variable 0

0 0

Total 66 76 33 4

0 0

179 Hours of calm in this stability class:

0 Hours of missing wind measurements in this stability class:

0 Hours of missing stability measurements in all stability classes:

2 60

Peach Bottom Atomic Power Station Licensee:

Exelon Generation Company, LLC Unit 2 and 3 PSEG Nuclear, LLC Peach Bottom Power Atomic Station Period of Record: July -

September 2021 Stability Class - Moderately Unstable

- 150Ft-33Ft Delta-T (F)

Winds Measured at 33 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24

> 24 Total N

6 10 0

0 0

0 16 NNE 5

2 0

0 0

0 7

NE 6

1 0

0 0

0

.7 ENE 8

0 0

0 8

E 8

2 0

0 0

0 10 ESE 1

1 0

0 0

0 2

SE 2

2 9

0 0

0 13 SSE 1

12 14 0

0 0

27 s

0 11 6

0 0

0 17 SSW 0

6 1

0 0

0 7

SW 1

3 10 0

0 0

14 WSW 2

1 0

0 0

0 3

w 3

7 4

0 0

0 14 WNW 0

11 3

0 0

0 14 NW 0

17 9

0 0

0 26 NNW 4

32 20 1

0 0

57 Variable 0

0 0

Total 47 118 76 1

0 0

242 Hours of calm in this stability class:

0 Hours of missing wind measurements in this stability class:

0 Hours of missing stability measurements in all stability classes:

2 61

Peach Bottom Atomic Power Station Licensee:

Exelon Generation Company, LLC Unit 2 and 3 PSEG Nuclear, LLC Peach Bottom Power Atomic Station Period of Record: July -

September 2021 Stability Class - Slightly Unstable 150Ft-33Ft Delta-T (F)

Winds Measured at 33 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24

> 24 Total N

2 3

0 0

5 NNE 6

0 0

0 6

NE 1

0 0

0 1

ENE 8

0 0

0 8

E 2

0 0

0 2

ESE 0

0 0

SE 1

4 1

0 0

0 6

SSE 3

13 3

0 0

0 19 s

0 4

1 0

0 0

5 SSW 2

3 0

0 0

0 5

SW 0

10 2

0 0

0 12 WSW 0

5 0

0 0

0 5

w 0

8 1

0 0

0 9

WNW 1

4 1

0 0

0 6

NW

2.

12 2

0 0

Q 16 NNW 3

15 5

0 0

0 23 Variable 0

0 0

Total 31 81 16 0

0 0

128 Hours of calm in this stability class:

0 Hours of missing wind measurements in this stability class:

0 Hours of missing stability measurements in all stability classes:

2 62

Peach Bottom Atomic Power Station Licensee:

Exelon Generation Company, LLC Unit 2 and 3 PSEG Nuclear, LLC Peach Bottom Nuclear Station Period of Record: July -

September 2021 Stability Class - Neutral

- 150Ft-33Ft Delta-T (F)

Winds Measured at 33 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24

> 24 Total N

33 1 6 2

0 0

0 51 NNE 24 2

0 0

26 NE 16 2

0 0

18 ENE 15 1

0 0

16 E

4 0

0 0

4 ESE 6

5 0

0 0

0 11 SE 13 27 17 7

0 0

64 SSE 12 61 19 0

0 0

92 s

5 24 9

0 0

0 38 SSW 13 12 5

0 0

0 30 SW 12 11 5

0 0

0 28 WSW 9

10 2

0 0

0 21 w

15 20 3

0 0

0 38 WNW 16 24 1

0 0

0 41 NW 11 31 5

0 0

0 47 NNW 20 38 17 1

0 0

76 Variable 0

0 0

Total 224 284 85 8

0 0

601 Hours of calm in this stability class:

0 Hours of missing wind measurements in this stability class:

0 Hours of missing stability measurements in all stability classes:

2 63

Peach Bottom Atomic Power Station Licensee:

Exelon Generation Company, LLC Unit 2 and 3 PSEG Nuclear, LLC Peach Bottom Power Atomic Station Period of Record: July -

September 2021 Stability Class - Slightly Stable

- 150Ft-33Ft Delta-T (F)

Winds Measured at 33 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24

> 24 Total N

17 10 0

0 0

0 27 NNE 16 0

0 0

16 NE 7

1 0

0 0

0 8

ENE 13 0

0 0

13 E

18 0

0 0

18 ESE 14 2

0 0

16 SE 30 16 0

0 0

0 46 SSE 25 27 2

0 0

0 54 s

44 29 1

0 0

0 74 SSW 28 8

0 1

0 0

37 SW 30 21 3

1 0

0 55 WSW 34 22 0

0 0

0 56 w

35 36 0

0 0

0 71 WNW 46 45 0

0 0

0 91 NW 38 29 0

0 0

0 67 NNW 19 19 1

0 0

0 39 Variable 0

0 0

Total 414 265 7

2 0

0 688 Hours of calm in this stability class:

2 Hours of missing wind measurements in this stability class:

0 Hours of missing stability measurements in all stability classes:

2 64

Peach Bottom Atomic Power Station Licensee:

Exelon Generation Company, LLC Unit 2 and 3 PSEG Nuclear, LLC Peach Bottom Power Atomic Station Period of Record: July -

September 2021 Stability Class - Moderately Stable 150Ft-33Ft Delta-T (F)

Winds Measured at 33 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24

> 24 Total N

1 0

0 0

1 NNE 1

0 0

0 1

NE 1

0 0

0 1

ENE 5

0 0

0 5

E 5

0 0

0 5

ESE 2

0 0

0 2

SE 6

0 0

0 6

SSE 3

0 0

0 3

s 2

0 0

0 2

SSW 15 2

0 0

17 SW 42 5

0 0

47 WSW 48 19 1

0 0

0 68 w

28 10 0

0 0

0 38 WNW 21 2

0 0

23 NW 4

2 0

0 0

0 6

NNW 4

0 0

0 4

Variable 0

0 0

Total 188 40 1

0 0

0 229 Hours of calm in this stability class:

3 Hours of missing wind measurements in this stability class:

0 Hours of missing stability measurements in all stability classes:

2 65

Peach Bottom Atomic Power Station Licensee:

Exelon Generation Company, LLC Unit 2 and 3 PSEG Nuclear, LLC Peach Bottom Power Atomic Station Period of Record: July -

September 2021 Stability Class - Extremely Stable

- 150Ft-33Ft Delta-T (F)

Winds Measured at 33 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24

> 24 Total N

0 0

0 NNE 0

0 0

NE 0

0 0

ENE 0

0 0

E 1

0 0

0 1

ESE 1

0 0

0 1

SE 0

0 0

SSE 0

0 0

s 3

0 0

0 3

SSW 4

0 0

0 4

SW 35 14 0

0 0

0 49 WSW 56 10 0

0 0

0 66 w

5 5

0 0

10 WNW 0

0 0

NW 0

0 0

NNW 0

0 0

Variable 0

0 0

Total 105 29 0

0 0

0 134 Hours of calm in this stability class:

0 Hours of missing wind measurements in this stability class:

0 Hours of missing stability measurements in all stability classes:

2 66

Peach Bottom Atomic Power Station Licensee:

Exelon Generation Company, LLC Unit 2 and 3 PSEG Nuclear, LLC Peach Bottom Power Atomic Station Period of Record: July -

September 2021 Stability Class - Extremely Unstable

- 316Ft-33Ft Delta-T (F)

Winds Measured at 320 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24

> 24 Total N

0 0

0 NNE 0

0 0

NE 0

0 0

ENE 0

3 0

0 0

0 3

E 0

3 0

0 0

0 3

ESE 0

1 3

0 0

0 4

SE 0

0 1

0 0

0 1

SSE 0

0 0

s 0

0 0

SSW 0

0 0

SW 0

0 0

WSW 0

0 0

w 0

0 0

WNW 0

0 0

NW 0

0 0

0

0.

NNW 0

0 0

Variable 0

0 0

Total 0

7 4

0 0

0 11 Hours of calm in this stability class:

0 Hours of missing wind measurements in this stability class:

0 Hours of missing stability measurements in all stability classes:

2 67

Peach Bottom Atomic Power Station Licensee:

Exelon Generation Company, LLC Unit 2 and 3 PSEG Nuclear, LLC Peach Bottom Power Atomic Station Period of Record: July -

September 2021 Stability Class - Moderately Unstable 316Ft-33Ft Delta-T (F)

Winds Measured at 320 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24

> 24 Total N

0 0

0 NNE 0

1 0

0 0

0 1

NE 0

1 0

0 0

0 1

ENE 2

3 2

0 0

0 7

E 1

7 0

0 0

0 8

ESE 0

1 4

0 0

0 5

SE 0

0 3

1 0

0 4

SSE 0

0 0

s 0

0 0

SSW 0

0 0

SW 0

0 0

WSW 0

0 0

w 0

0 0

WNW 0

0 0

. NW 0

0 0

NNW 0

0 0

Variable 0

0 0

Total 3

13 9

1 0

0 2 6 Hours of calm in this stability class:

0 Hours of missing wind measurements in this stability class:

0 Hours of missing stability measurements in all stability classes:

2 68

Peach Bottom Atomic Power Station Licensee:

Exelon Generation Company, LLC Unit 2 and 3 PSEG Nuclear, LLC Peach Bottom Power Atomic Station Period of Record: July -

September 2021 Stability Class - Slightly Unstable 316Ft-33Ft Delta-T (F)

Winds Measured at 320 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24

> 24 Total N

0 3

1 0

0 0

4 NNE 0

0 1

0 0

0 1

NE 0

3 0

0 0

0 3

ENE 2

6 2

1 0

0 11 E

0 7

0 0

7 ESE 0

6 1

0 0

0 7

SE 0

0 6

1 0

0 7

SSE 0

0 1

0 0

0 1

s 0

0 5

3 0

0 8

SSW 0

0 3

2 0

0 5

SW 0

0 0

2 0

0 2

WSW 0

0 0

w 0

0 0

WNW 0

0 1

0 0

0 1

NW 0

0 0

1 0

0 1

NNW 0

0 0

Variable 0

0 0

Total 2

25 21 10 0

0 58 Hours of calm in this stability class:

0 Hours of missing wind measurements in this stability class:

0 Hours of missing stability measurements in all stability classes:

2 69

Peach Bottom Atomic Power Station Licensee:

Exelon Generation Company, LLC Unit 2 and 3 PSEG Nuclear, LLC Peach Bottom Power Atomic Station Period of Record: July -

September 2021 Stability Class - Neutral 316Ft-33Ft Delta-T (F)

Winds Measured at 320 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24

> 24 Total N

4 18 16 4

0 0

42 NNE 2

10 8

3 0

0 23 NE 6

19 8

0 0

0 33 ENE 15 13 17 3

0 0

48 E

9 22 5

2 0

0 38 ESE 5

21 11 7

0 0

44 SE 4

16 40 22 14 3

99 SSE 1

13 26 21 2

0 63 s

3 19 52 29 0

0 103 SSW 1

14 21 5

0 0

41 SW 1

12 20 15 0

0 48 WSW 7

6 5

1 0

0 19 w

3 21 21 12 1

0 58 WNW 3

21 29 17 0

0 70 NW 3

37 49 22 3

0 114 NNW 4

38 55 29 11 1

138 Variable 0

0 0

Total 71 300 383 192 31 4

981 Hours of calm in this stability class:

0 Hours of missing wind measurements in this stability class:

0 Hours of missing stability measurements in all stability classes:

2 70

Peach Bottom Atomic Power Station Licensee:

Exelon Generation Company, LLC Unit 2 and 3 PSEG Nuclear, LLC Peach Bottom Power Atomic Station Period of Record: July -

September 2021 Stability Class - Slightly Stable 316Ft-33Ft Delta-T (F)

Winds Measured at 320 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24

> 24 Total N

5 11 22 3

1 1

43 NNE 6

18 8

1 0

0 33 NE 3

16 7

1 0

0 27 ENE 7

10 5

0 0

0 22 E

2 17 11 0

0 0

30 ESE 3

12 6

0 0

0 21 SE 6

18 15 5

0 0

44 SSE 5

13 18 4

2 0

42 s

2 22 32 33 3

0 92 SSW 5

14 42 22 1

1 85 SW 4

16 20

. 10 3

0 53 WSW 4

15 24 20 0

0 63 w

2 18 18 10 0

0 48 WNW 3

4 22 13 5

0 47 NW 4

18 24 28 4

0 78 NNW 5

15 27 13 2

0 62 Variable 0

0 0

Total 66 237 301 163 21 2

790 Hours of calm in this stability class:

0 Hours of missing wind measurements in this stability class:

0 Hours of missing stability measurements in all stability classes:

2 71

Peach Bottom Atomic Power Station Unit 2 and 3 Licensee:

Exelon Generation Company, LLC PSEG Nuclear, LLC Hours Hours Hours Peach Bottom Power Atomic Station Period of Record: July -

September 2021 Stability Class - Moderately Stable 316Ft-33Ft Delta-T (F) of of of Wind Direction N

NNE NE ENE E

ESE SE SSE s

SSW SW WSW w

WNW NW NNW Variable Total calm in Winds Measured at 320 Feet Wind Speed (in mph) 1-3 4-7 8-12 13-18 19-24

> 24 1

9 9

0 0

0 3

0 0

0 1

5 0

0 0

0 1

3 0

0 0

0 2

0 0

0 1

0 0

0 1

2 0

0 0

0 4

3 3

0 0

0 4

5 2

0 0

0 4

7 0

3 0

0 8

7 7

1 1

0 0

4 13 12 1

0 3

5 15 8

0 0

3 8

10 10 0

0 3

9 12 8

0 0

6 19 11 3

0 0

44 86 83 45 2

0 this stability class:

2 missing wind measurements in this stability class:

0 missing stability measurements in all stability classes:

72 Total 19 3

6 4

2 1

3 10 11 14 24 30 31 31 32 39 0

260 2

Peach Bottom Atomic Power Station Licensee:

Exelon Generation Company, LLC Unit 2 and 3 PSEG Nuclear, LLC Peach Bottom Power Atomic Station Period of Record: July -

September 2021 Stability Class - Extremely Stable 316Ft-33Ft Delta-T (F)

Winds Measured at 320 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24

> 24 Total N

0 0

0 NNE 1

0 0

0 1

NE 0

1 0

0 0

0 1

ENE 0

1 0

0 0

0 1

E 0

0 0

ESE 0

0 0

SE 0

0 0

SSE 2

0 0

0 2

s 1

0 0

0 1

SSW 5

3 0

0 0

0 8

SW 1

2 2

0 0

0 5

WSW 6

2 5

0 0

0 13 w

2 1

5 0

0 0

8 WNW 3

3 2

0 0

0 8

NW 3

7 6

1 0

0 17 NNW 1

5 6

0 0

0 12 Variable 0

0 0

Total 25 25 26 1

0 0

77 Hours of calm in this stability class:

1 Hours of missing wind measurements in this stability class:

0 Hours of missing stability measurements in all stability classes:

2 73

Peach Bottom Atomic Power Station licensee:

Exelon Generation Company, LLC Unit 2 and 3 PSEG Nuclear, LLC Peach Bottom Atomic Power Station Period of Record: October -

December 2021 Stability Class -

Extremely Unstable

- 150Ft-33Ft Delta-T (F)

Winds Measured at 33 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24

> 24 Total N

5 4

2 0

0 0

11 NNE 4

5 0

0 0

0 9

NE 7

0 0

0 7

ENE 10 1

0 0

11 E

14 4

0 0

18 ESE 3

2 0

0 0

0 5

SE 1

2 0

0 0

0 3

SSE 0

1 0

0 0

0 1

s 0

1 4

2 0

0 7

SSW 1

0 0

0 1

SW 2

0 3

0 0

0 5

WSW 1

3 0

0 0

0 4

w 1

3 0

0 0

0 4

WNW 0

0 0

NW 4

4 0

0 0

0 8

NNW 3

4 1

0 0

0 8

Variable 0

0 0

Total 56 34 10 2

0 0

102 Hours of calm in this stability class:

0 Hours of missing wind measurements in this stability class:

0 Hours of missing stability measurements in all stability classes:

0 74

Peach Bottom Atomic Power Station Licensee:

Exelon Generation Company, LLC Unit 2 and 3 PSEG Nuclear, LLC Peach Bottom Atomic Power Station Period of Record: October -

December 2021 Stability Class - Moderately Unstable - 150Ft-33Ft Delta-T (F)

Winds Measured at 33 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24

> 24 Total N

1 6

0 0

7 NNE 5

2 0

0 0

0 7

NE 3

0 0

0 3

ENE 10 1

0 0

11 E

9 0

0 0

9 ESE 3

5 0

0 0

0 8

SE 4

11 4

0 0

0 19 SSE 1

2 2

1 0

0 6

s 1

3 4

0 0

0 8

SSW 1

2 1

0 0

0 4

SW 0

1 1

0 0

0 2

WSW 0

3 0

0 0

0 3

w 0

1 1

0 0

0 2

WNW 0

10 8

0 0

0 18 NW 0

10 12 3

0 0

25 NNW 2

9 8

2 0

0 21 Variable 0

0 0

Total 40 66 41 6

0 0

153 Hours of calm in this stability class:

2 Hours of missing wind measurements in this stability class:

0 Hours of missing stability measurements in all stability classes:

0 75

Peach Bottom Atomic Power Station Licensee:

Exelon Generation Company, LLC Unit 2 and 3 PSEG Nuclear, LLC Peach Bottom Atomic Power Station Period of Record: October -

December 2021 Stability Class - Slightly Unstable 150Ft-33Ft Delta-T (F)

Winds Measured at 33 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24

> 24 Total N

4 3

0 0

7 NNE 4

0 0

0 4

NE 5

0 0

0 5

ENE 8

0 0

0 8

E 5

0 0

0 5

ESE 3

0 0

0 3

SE 1

0 0

0 1

SSE 2

3 3

0 0

0 8

s 0

2 2

0 0

0 4

SSW 1

5 0

0 0

0 6

SW 0

1 0

0 0

0 1

WSW 0

1 0

0 0

0 1

w 0

2 2

3 0

0 7

WNW 0

6 11 2

0 0

19 NW 1

6 19 6

0 0

32 NNW 1

7 7

2 0

0 17 Variable 0

0 0

Total 35 36 44 13 0

0 128 Hours of calm in this stability class:

1 Hours of missing wind measurements in this stability class:

0 Hours of missing stability measurements in all stability classes:

0 76

Peach Bottom Atomic Power Station Licensee:

Exelon Generation Company, LLC Unit 2 and 3 PSEG Nuclear, LLC Peach Bottom Atomic Power Station Period of Record: October -

December 2021 Stability Class - Neutral

- 150Ft-33Ft Delta-T (F)

Winds Measured at 33 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24

> 24 Total N

29 22 1

0 0

0 52 NNE 25 6

0 0

31 NE 24 8

0 0

32 ENE 31 1

0 0

32 E

31 6

0 0

37 ESE 18 15 1

0 0

0 34 SE 15 47 10 0

0 0

72 SSE 16 39 7

0 0

0 62 s

17 19 13 3

0 0

52 SSW 3

6 7

1 1

0 18 SW 3

7 1

0 0

0 11 WSW 2

12 2

0 0

0 16 w

12 28 18 3

0 0

61 WNW 14 39 57 15 0

0 125 NW 9

21 57 17 0

0

.104 NNW 5

18 27 7

0 0

57 Variable 0

0 0

Total 254 294 201 4 6 1

0 796 Hours of calm in this stability class:

2 Hours of missing wind measurements in this stability class:

0 Hours of missing stability measurements in all stability classes:

0 77

Peach Bottom Atomic Power Station Licensee:

Exelon Generation Company, LLC Unit 2 and 3 PSEG Nuclear, LLC Peach Bottom Atomic Power Station Period of Record: October -

December 2021 Stability Class - Slightly Stable 150Ft-33Ft Delta-T (F)

Winds Measured at 33 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24

> 24 Total N

18 4

1 0

0 0

23 NNE 29 3

0 0

32 NE 22 0

0 0

22 ENE 19 0

0 0

19 E

31 1

0 0

32 ESE 31 4

0 0

35 SE 33 18 0

0 0

0 51 SSE 18 12 0

0 0

0 30 s

22 14 1

0 0

0 37 SSW 11 5

0 0

16 SW 15 11 3

0 0

0 29 WSW 22 55 4

0 0

0 81 w

21 52 6

0 0

0 79 WNW 13 42 5

0 0

0 60 NW 19 18 5

0 0

0 42 NNW 15 10 0

0 0

0 25 Variable 0

0 0

Total 339 249 25 0

0 0

613 Hours of calm in this stability class:

0 Hours of missing wind measurements in this stability class:

0 Hours of missing stability measurements in all stability classes:

0 78

Peach Bottom Atomic Power Station Licensee:

Exelon Generation Company, LLC Unit 2 and 3 PSEG Nuclear, LLC Peach Bottom Atomic Power Station Period of Record: October -

December 2021 Stability Class - Moderately Stable 150Ft-33Ft Delta-T (F)

Winds Measured at 33 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24

> 24 Total N

7 1

0 0

8 NNE 8

0 0

0 8

NE 3

0 0

0 3

ENE 6

0 0

0 6

E 11 0

0 0

11 ESE 12 2

0 0

14 SE 8

0 0

0 8

SSE 7

0 0

0 7

s 6

0 0

0 6

SSW 10 1

0 0

11 SW 19 1

0 0

20 WSW 42 20 2

0 0

0 64 w

28 11 0

0 0

0 39 WNW 12 2

0 0

14 NW 8.

6 0

0 0

0.

14 NNW 6

1 0

0 0

0 7

Variable 0

0 0

Total 193 45 2

0 0

0 240 Hours of calm in this stability class:

2 Hours of missing wind measurements in this stability class:

0 Hours of missing stability measurements in all stability classes:

0 79

Peach Bottom Atomic Power Station Licensee:

Exelon Generation Company, LLC Unit 2 and 3 PSEG Nuclear, LLC Peach Bottom Atomic Power Station Period of Record: October -

December 2021 Stability Class -

Extremely Stable 150Ft-33Ft Delta-T (F)

Winds Measured at 33 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24

> 24 Total N

2 0

0 0

2 NNE 3

0 0

0 3

NE 1

0 0

0 1

ENE 3

0 0

1 4

E 8

0 0

0 8

ESE 4

0 0

0 4

SE 2

0 0

0 2

SSE 4

0 0

0 4

s 5

0 0

0 5

SSW 7

0 0

0 7

SW 22 9

0 0

31 WSW 47 12 0

0 0

0 59 w

18 1

0 0

19 WNW 8

1 0

0 0

0 9

NW 7

0 0

0 7

NNW 3

0 0

0 3

Variable 0

0 0

Total 144 23 0

0 0

1 168 Hours of calm in this stability class:

1 Hours of missing wind measurements in this stability class:

0 Hours of missing stability measurements in all stability classes:

0 80

Peach Bottom Atomic Power Station Licensee:

Exelon Generation Company, LLC Unit 2 and 3 PSEG Nuclear, LLC Peach Bottom Atomic Power Station Period of Record: October -

December 2021 Stability Class - Extremely Unstable 316Ft-33Ft Delta-T (F)

Winds Measured at 320 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24

> 24 Total N

0 0

0 NNE 0

0 0

NE 0

0 0

ENE 0

0 0

E 0

0 0

ESE 0

0 0

SE 0

0 0

SSE 0

0 0

s 0

0 0

SSW 0

0 0

SW 0

0 0

WSW 0

0 0

w 0

0 0

WNW 0

0 0

NW 0

0 0

NNW 0

0 0

Variable 0

0 0

Total 0

0 0

Hours of calm in this stability class:

0 Hours of missing wind measurements in this stability class:

0 Hours of missing stability measurements in all stability classes:

0 81

Peach Bottom Atomic Power Station Licensee:

Exelon Generation Company, LLC Unit 2 and 3 PSEG Nuclear, LLC Peach Bottom Atomic Power Station Period of Record: October -

December 2021 Stability Class - Moderately Unstable 316Ft-33Ft Delta-T (F)

Winds Measured at 320 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24

> 24 Total N

0 0

0 NNE 0

0 0

1 0

0 1

NE 0

0 0

ENE 0

0 2

0 0

0 2

E 0

1 0

0 0

0 1

ESE 0

2 0

0 0

0 2

SE 0

0 0

SSE 0

0 0

s 0

0 0

SSW 0

0 0

SW 0

0 0

WSW 0

0 0

w 0

0 0

WNW 0

0 0

NW 0

0 0

NNW 0

0 0

Variable 0

0 0

Total 0

3 2

1 0

0 6

Hours of calm in this stability class:

0 Hours of missing wind measurements in this stability class:

0 Hours of missing stability measurements in all stability classes:

0 82

Peach Bottom Atomic Power Station Licensee:

Exelon Generation Company, LLC Unit 2 and 3 PSEG Nuclear, LLC Peach Bottom Atomic Power Station Period of Record: October -

December 2021 Stability Class - Slightly Unstable 316Ft-33Ft Delta-T (Fl Winds Measured at 320 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24

> 24 Total N

0 0

2 0

0 0

2 NNE 0

0 0

NE 0

0 0

ENE 0

2 1

0 0

0 3

E 0

2 0

0 0

0 2

ESE 0

6 0

0 0

0 6

SE 0

1 4

0 0

0 5

SSE 0

0 0

s 0

0 0

1 1

0 2

SSW 0

0 0

SW 0

0 0

WSW 0

0 0

w 0

0 0

WNW 0

0 0

NW 0

0 0

NNW 0

0 0

Variable 0

0 0

Total 0

11 7

1 1

0 20 Hours of calm in this stability class:

0 Hours of missing wind measurements in this stability class:

0 Hours of missing stability measurements in all stability classes:

a 83

Peach Bottom Atomic Power Station Licensee:

Exelon Generation Company, LLC Unit 2 and 3 PSEG Nuclear, LLC Peach Bottom Atomic Power Station Period of Record: October -

December 2021 Stability Class - Neutral -

316Ft-33Ft Delta-T (Fl Winds Measured at 320 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24

> 24 Total N

1 10 12 5

2 0

30 NNE 5

7 14 0

0 0

26 NE 8

11 15 5

0 0

39 ENE 15 17 8

0 0

0 40 E

6 31 9

7 3

3 59 ESE 8

30 12 3

1 0

54 SE 6

25 33 17 2

0 83 SSE 5

17 37 10 0

0 69 s

1 8

30 14 9

1 63 SSW 1

8 17 14 3

1 44 SW 2

6 9

3 1

0 21 WSW 3

4 12 3

0 0

22 w

0 8

23 11 10 1

53 WNW 1

13 38 55 42 20 169 NW 3

6 36 48 50 8

151 NNW 1

18 21 23 16 0

79 Variable 0

0 0

Total 66 219 326 218 139 34 1002 Hours of calm in this stability class:

0 Hours of missing wind measurements in this stability class:

0 Hours of missing stability measurements in all stability classes:

0 84

Peach Bottom Atomic Power Station Licensee:

Exelon Generation Company, LLC Unit 2 and 3 PSEG Nuclear, LLC Peach Bottom Atomic Power Station Period of Record: October -

December 2021 Stability Class - Slightly Stable -

316Ft-33Ft Delta-T (F)

Winds Measured at 320 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24

> 24 Total N

3 15 11 1

1 0

31 NNE 2

16 6

2 0

0 26 NE 2

13 3

3 0

0 21 ENE 5

16 9

0 0

0 30 E

5 19 8

0 0

3 35 ESE 1

23 9

1 1

0 35 SE 4

21 17 7

0 0

49 SSE 8

26 22 6

2 0

64 s

5 26 42 21 0

0 94 SSW 6

8 34 8

1 0

57 SW 4

8 12 7

3 1

35 WSW 4

10 18 16 0

0 48 w

3 8

14 47 8

1 81 WNW 2

6 24 40 6

0 78 NW 0

4 26 40 7

0

]7 NNW 2

4 17 14 4

0 41 Variable 0

0 0

Total 56 223 272 213 33 5

802 Hours of calm in this stability class:

1 Hours of missing wind measurements in this stability class:

0 Hours of missing stability measurements in all stability classes:

0 85

Peach Bottom Atomic Power Station Licensee:

Exelon Generation Company, LLC Unit 2 and 3 PSEG Nuclear, LLC Peach Bottom Atomic Power Station Period of Record: October -

December 2021 Stability Class - Moderately Stable 316Ft-33Ft Delta-T (F)

Winds Measured at 320 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24

> 24 Total N

0 7

16 0

0 0

23 NNE 0

1 5

0 0

0 6

NE 1

1 2

0 0

0 4

ENE 1

2 2

0 0

0 5

E 1

1 7

1 0

1 11 ESE 1

1 4

0 0

0 6

SE 0

1 2

0 0

0 3

SSE 1

3 5

0 0

0 9

s 0

9 3

0 0

0 12 SSW 0

12 5

0 0

0 17 SW 3

12 5

4 0

0 24 WSW 0

8 15 3

1 0

27 w

3 5

12 20 5

0 45 WNW 1

4 18 7

1 0

31 NW 1

10 11 4

0 0

26 NNW 1

4 11 3

0 0

19 Variable 0

0 0

Total 14 8 1 123 42 7

1 268 Hours of calm in this stability class:

0 Hours of missing wind measurements in this stability class:

0 Hours of missing stability measurements in all stability classes:

0 86

Peach Bottom Atomic Power Station Licensee:

Exelon Generation Company, LLC Unit 2 and 3 PSEG Nuclear, LLC Peach Bottom Atomic Power Station Period of Record: October -

December 2021 Stability Class - Extremely Stable 316Ft-33Ft Delta-T (F)

Winds Measured at 320 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24

> 24 Total N

0 3

1 0

0 0

4 NNE 0

7 3

0 0

0 10 NE 0

1 1

0 0

0 2

ENE 0

0 0

E 0

0 1

0 0

0 1

ESE 0

0 3

0 0

0 3

SE 0

2 0

0 0

0 2

SSE 0

0 2

0 0

0 2

s 1

2 2

0 0

0 5

SSW 0

3 2

0 0

0 5

SW 1

3 3

0 0

0 7

WSW 3

7 12 1

0 0

23 w

0 4

5 3

0 0

12 WNW 2

4 7

4 0

0 17 NW 3

0 1

2 0

0 6

NNW 0

5 5

0 0

0 10 Variable 0

0 0

Total 10 41 48 10 0

0 109 Hours of calm in this stability class:

0 Hours of missing wind measurements in this stability class:

0 Hours of missing stability measurements in all stability classes:

0 87

Peach Bottom Atomic Power Station Unit 2 and 3 Licensee:

Exelon Generation Company, LLC PSEG Nuclear, LLC Appendix A: ODCM Revision 88

Offsite Dose Cal culation Manua l Revision 18 Page 1 of 64 Rev. 18 Peach Bottom Atomic Power Station Units 2 and 3 Exelon Generation Company, LLC Docket Nos. 50 - 277 & 50 - 278 PORC Approva~~

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Jan u a ry 2021

Page 2 of 64 Rev. 18 January 2021 Table of Contents I.

Purpose II.

Instrument Setpoints III.

Liquid Pathway Dose Calculations A.

Liquid Radwaste Release Flow Rate Determination B.

ODCMS 4.8.B.2.1 C.

ODCMS 4.8.B.4.1 IV.

Gaseous Pathway Dose Calculations A.

ODCMS 4.8.C.1.1 and 4.8.C.1.2 B.

ODCMS 4.8.C.2.1 C.

ODCMS 4.8.C.3.1 D.

ODCMS 4.8.C.5.1 E.

Technical Requirements Manual Test Requirement (TR) 3.5.3 F.

ODCMS 4.8.C.7.1 and 4.8.C.7.2-Section Removed.

V.

Nuclear Fuel Cycle Dose Assessment - 40 CFR 190 and 10 CFR 72.104 A.

ODCMS 4.8.D.1.1 and 4.8.D.1.2 VI.

Doses Due To Activities Inside the Site Boundary A.

ODCMS 3.10.2.f VII.

Radiological Environmental Monitoring Program A. ODCMS 4.8.E.1.1 and 4.8.E.1.2 VIII.

Bases Appendix A Radioactive Effluents Control Program

Page 3 of 64 Rev. 18 January 2021

I.

Purpose The purpose of the Offsite Dose Calculation Manual is to establish methodologies and procedures for calculating doses to individuals in areas at and beyond the SITE BOUNDARY due to radioactive effluents from Peach Bottom Atomic Power Station. The results of these calculations are required to determine compliance with the requirements of Specification 5.5.4, "Radioactive Effluent Controls Program" of Appendix A to Operating Licenses DPR-44 and DPR-56, "Technical Specifications for Peach Bottom Atomic Power Station Units No. 2 and 3". The Radioactive Effluents Control Program is located in Appendix A of this Offsite Dose Calculation Manual and contains Offsite Dose Calculation Manual Specifications (ODCMS) and their associated Bases which implement the requirements of Technical Specification 5.5.4.

II.

Setpoint Determination for Liquid & Gaseous Monitors II.A Liquid Radwaste Activity Monitor Setpoint A sketch of the Liquid Radwaste System is presented in Figure

4. Each tank of radioactive waste is sampled prior to release. A small liquid volume of this sample is analyzed for gross gamma activity in a NaI well counter. This NaI well counter activity is then converted to an equivalent liquid radwaste monitor reading.

CPS (R/W Monitor)

=

[Net CPM/ml (well) x Eff W/RW] +

Background CPS Where:

CPS (R/W Monitor)

=

liquid radwaste gross activity monitor reading in CPS Net CPM/ml (well)

=

gross gamma activity for the radwaste sample tank [determined by the well counter]

Eff W/RW

=

conversion factor between well counter and liquid radwaste gross activity monitor [determined by calibrating both detectors with the same liquid radioactive source]

Background CPS

=

background reading of the liquid radwaste gross activity monitor in CPS

Page 4 of 64 Rev. 18 January 2021

Exceeding the expected response would indicate that an incorrect sample had been obtained for that release and the release is automatically stopped.

The alarm and trip pot setpoints for the liquid radwaste activity monitor are determined from a calibration curve for the alarm pot and trip pot. The alarm pot setting includes a factor of 1.25 to allow for analysis error, pot setting error, instrument error and calibration error. The trip pot setting includes a factor of 1.35 to allow for analysis error, pot setting error, instrument error and calibration error.

II.B Liquid Radwaste Release Flowrate Setpoint Determination The trip pot setpoint for the liquid radwaste release flowrate is determined by multiplying the liquid radwaste flowrate (from Section III.A) by 1.2 and using this value on the appropriate calibration curve for the discharge flow meter to be used. The Peach Bottom radwaste system has two flow monitors - high flow (5 to 300 gpm) and low flow (0.8 to 15 gpm). The factor of 1.2 allows for pot setting error and instrument error. The flow rate determination includes a margin of assurance which includes consideration of this error such that the instantaneous release limit of 10 CFR 20 is not exceeded.

II.C Setpoint Determination for Gaseous Radwaste A sketch of the Offgas Radwaste Treatment System is presented in Figure 1. Sketches of the Ventilation Treatment Systems for Units 2 and 3 are presented in Figures 2 and 3 respectively. The high and high-high alarm setpoints for the main stack radiation monitor, Unit 2 roof vent radiation monitor and Unit 3 roof vent radiation monitor are determined as follows:

High Alarm - the high alarm setpoint is set at approximately 3 x background.

Page 5 of 64 Rev. 18 January 2021

High-High Alarm - the high-high alarm setpoint is set at a release rate from this vent of approximately 30% of the instantaneous release limit as specified in ODCMS 3.8.C.1.a for the most restrictive case (skin or total body) on an unidentified basis. To determine these setpoints, solve the gaseous effluent dose rate equations in section IV.A of the ODCM to determine what main stack release rate and roof vent release rate will produce a dose rate of 150 mrem/yr to the total body (30% of the limit of 500 mrem/yr) and a dose rate of 900 mrem/yr to the skin (30% of the limit of 3000 mrem/yr) from each release point. Using the highest (most restrictive) release rate for each release point determine monitor response required to produce this release rate assuming a normal vent flow rate and pressure correction factor. Set the high-high alarm for approximately this monitor response.

II.D.

Setpoint Determination for Gaseous Radwaste Flow Monitors The alarm setpoint for the main stack flow monitor is as follows:

Low Flow Alarm - 10,000 CFM. - This setting ensures that the main stack minimum dilution flow as specified in ODCMS 3.8.C.4.a is maintained.

The alarm setpoints for the roof vent flow monitors are as follows:

Low Flow Alarm - 1.5 x 105 cfm High Flow Alarm - 5.4 x 105 cfm III.

Liquid Pathway Dose Calculations III.A Liquid Radwaste Release Flow Rate Determination Peach Bottom Atomic Power Station Units 2 and 3 have one common discharge point for liquid releases. The following calculation assures that the radwaste release limits are met.

The flow rate of liquid radwaste released from the site to areas at and beyond the SITE BOUNDARY shall be such that the concentration of radioactive material after dilution shall be limited to 10 times the concentration specified in 10 CFR 20, Appendix B, Table 2, Column 2 for radionuclides other than noble gases and 2E-4 Ci/ml total activity concentration for all noble gases as specified in ODCMS 3.8.B.1. This

January 2021

Page 6 of 64 Rev. 18 methodology is consistent with the additional guidance the NRC provided to the industry during the implementation of the updated 10 CFR 20 which changed the criterion for controlling release rate based on Effective Concentration (EC) values in the updated 10 CFR 20 as opposed to the Maximum Permissible Concentration (MPC) values in the former 10 CFR 20.

Each tank of radioactive waste is sampled prior to release and is quantitatively analyzed for identifiable gamma emitters as specified in Table 4.8.B.1 of the ODCMS. While non-gamma emitters are not specifically addressed, the conservatisms inherent in the calculation of the maximum permissible release rate are more than adequate to account for them. From this gamma isotopic analysis the maximum permissible release flow rate is determined as follows:

Determine a Dilution Factor by:

Ci / mli Dilution Factor =

1 i 10 x ECLi Ci / mli =

the activity of each identified gamma emitter in Ci/ml ECLi

=

The effluent concentration specified in 10 CFR 20, Appendix B, Table 2, Column 2 for radionuclides other than noble gases or 2 x 10-4 Ci/ml for noble gases.

January 2021 Page 7 of 64 Rev. 18

Determine the Maximum Permissible Release Rate with this Dilution Factor by:

Release Rate (gpm) =

A x 2.0 x 105 B x C x Dilution Factor A

=

The number of circulating water pumps running which will provide dilution 2.0 x 105 =

the flow rate in gpm for each circulating water pump running B

=

margin of assurance which includes consideration of the maximum error in the activity setpoint, the maximum error in the flow setpoint, and possible loss of 5 out of the 6 possible circulating water pumps during a release. The value used for B is 10.0.

C

=

concentration gradient factor. The value used for C is 5.0 for discharge canal water levels less than 104' and 3.0 for canal water levels greater than 104'. This just adds another factor of conservatism.

III.B ODCMS 4.8.B.2.1 Dose contributions from liquid effluents released to areas at and beyond the SITE BOUNDARY shall be calculated using the equation below. This dose calculation uses those appropriate radionuclides listed in Table III.A.1. These radionuclides account for virtually 100 percent of the total body dose and organ dose from liquid effluents.

The dose for each age group and each organ should be calculated to determine the maximum total body dose and organ dose for each quarter and the year, as appropriate.

Cumulative dose files for quarterly and yearly doses should be maintained separately and the maximum total body and organ dose reported in each case. CM-1 NRC URI 88-33-01, T00353.

m

D AitCiF

where:

i 1

D

=

The cumulative dose commitment to the total body or any organ,, from liquid effluents for the total

January 2021 Page 8 of 64 Rev. 18

time period m

t2, in mrem.

1 t

=

The length of the th time period over which Ciand Fare averaged for the liquid release, in hours.

Ci

=

The average concentration of radionuclide, i, in undiluted liquid effluent during time period t from any liquid release, (determined by the effluent sampling analysis program, ODCMS Table 4.8.B.1), in Ci/ml.

Ai

=

The site related ingestion dose commitment factor to the total body or organ,, for each radionuclide listed in Table III.A.1, in mrem-ml per hr-Ci. See Site Specific Data.**

F

=

The near field average dilution factor for Ci during any liquid effluent release. Defined as the ratio of the maximum undiluted liquid waste flow during release to the average flow through the discharge pathway.

III.C ODCMS 4.8.B.4.1 Projected dose contributions from liquid effluents shall be calculated using the methodology described in section III.B.

- See Note 1 in Bases

January 2021 Page 9 of 64 Rev. 18

TABLE III.A.1 LIQUID EFFLUENT INGESTION DOSE FACTORS (DECAY CORRECTED)

AiDOSE FACTOR (MREM-ML PER HR-Ci)

TOTAL BODY RADIONUCLIDE ADULT TEEN CHILD H-3 2.13E+00 1.53E+00 2.70E+00 NA-24 1.65E+02 1.70E+02 1.98E+02 P-32 5.93E+04 6.49E+04 8.33E+04 CR-51 1.49E+00 1.53E+00 1.69E+00 MN-54 9.82E+02 1.00E+03 1.08E+03 FE-55 1.31E+02 1.40E+02 1.96E+02 FE-59 1.14E+03 1.17E+03 1.36E+03 CO-57 4.55E+01 4.71E+01 5.78E+01 CO-58 2.59E+02 2.62E+02 3.17E+02 CO-60 7.40E+02 7.48E+02 9.07E+02 NI-63 1.29E+03 1.34E+03 1.90E+03 ZN-65 3.87E+04 3.95E+04 4.16E+04 SR-89 8.83E+02 9.45E+02 1.48E+03 SR-90 1.88E+05 1.56E+05 1.72E+05 Y-91M 5.85E-13 6.14E-13 9.31E-13 Y-93 1.27E-03 1.34E-03 2.16E-03 NB-95 1.52E+02 1.56E+02 1.68E+02 NB-95M no data no data no data ZR-95 1.77E-01 1.72E-01 3.48E-01 ZR-97 1.56E-03 1.56E-03 3.43E-03 MO-99 2.91E+01 3.01E+01 5.53E+01 TC-99M 3.33E-02 3.33E-02 4.93E-02 RU-103 3.57E+00 3.60E+00 5.97E+00 RU-105 6.55E-03 6.72E-03 1.19E-02 AG-110M 2.13E+00 2.04E+00 4.23E+00 SN-113 no data no data no data TE-129M 2.01E+03 2.17E+03 2.79E+03 TE-131M 4.57E+02 4.81E+02 5.74E+02 TE-132 1.40E+03 1.44E+03 1.65E+03 SB-124 2.27E+01 2.18E+01 5.15E+01 SB-125 8.79E+00 8.47E+00 2.01E+01 I-131 1.86E+02 1.79E+02 2.36E+02 I-133 1.97E+01 2.03E+01 3.20E+01 I-135 2.04E+00 2.06E+00 3.12E+00 CS-134 6.74E+05 3.88E+05 1.49E+05 CS-136 9.79E+04 9.15E+04 7.30E+04 CS-137 3.98E+05 2.20E+05 8.49E+04 CS-138 1.04E-11 1.09E-11 1.27E-11 BA-139 5.01E-07 5.17E-07 1.18E-06 BA-140 3.66E+01 3.62E+01 7.42E+01

January 2021 Page 10 of 64 Rev. 18

LA-140 1.92E-02 1.97E-02 2.78E-02 LA-142 3.62E-08 3.70E-08 5.28E-08 CE-141 1.45E-02 1.46E-02 3.86E-02 CE-143 1.68E-03 1.69E-03 4.44E-03 NOTE:

The listed dose factors are for radionuclides that may be detected in liquid effluents and have significant dose consequences. The factors are decayed for one day to account for the time between effluent release and ingestion of fish by the maximum exposed individual.

January 2021 Page 11 of 64 Rev. 18

TABLE III.A.1 LIQUID EFFLUENT INGESTION DOSE FACTORS (DECAY CORRECTED)

AiDOSE FACTOR (MREM-ML PER HR-Ci)

RADIONUCLIDE ADULT LIVER TEEN CHILD H-3 NA-24 P-32 CR-51 MN-54 FE-55 FE-59 CO-57 CO-58 CO-60 NI-63 ZN-65 SR-89 SR-90 Y-91M Y-93 NB-95 NB-95M ZR-95 ZR-97 MO-99 TC-99M RU-103 RU-105 AG-110M SN-113 TE-129M TE-131M TE-132 SB-124 SB-125 I-131 I-133 I-135 CS-134 CS-136 CS-137 CS-138 BA-139 BA-140 2.13E+00 1.65E+02 9.55E+04 no data 5.15E+03 5.62E+02 2.96E+03 2.74E+01 1.16E+02 3.35E+02 2.66E+03 8.55E+04 no data no data no data no data 2.83E+02 no data 2.61E-01 3.40E-03 1.53E+02 2.61E-03 no data no data 3.58E+00 no data 4.74E+03 5.48E+02 1.48E+03 1.08E+00 4.13E+01 3.25E+02 6.48E+01 5.52E+00 8.25E+05 1.36E+05 6.07E+05 2.10E-11 1.22E-08 7.00E-01

1.53E+00 1.70E+02 1.04E+05 no data 5.06E+03 6.01E+02 3.02E+03 2.81E+01 1.14E+02 3.32E+02 2.80E+03 8.46E+04 no data no data no data no data 2.84E+02 no data 2.50E-01 3.39E-03 1.58E+02 2.57E-03 no data no data 3.36E+00 no data 5.09E+03 5.77E+02 1.53E+03 1.03E+00 3.96E-01 3.32E+02 6.66E+01 5.55E+00 8.36E+05 1.36E+05 6.32E+05 2.18E-11 1.25E-08 6.90E-01 2.70E+00 1.98E+02 1.01E+05 no data 4.03E+03 6.33E+02 2.73E+03 2.86E+01 1.04E+02 3.07E+02 2.99E+03 6.69E+04 no data no data no data no data 2.35E+02 no data 3.91E-01 5.82E-03 2.23E+02 2.98E-03 no data no data 5.30E+00 no data 5.02E+03 5.40E+02 1.36E+03 1.91E+00 7.39E-01 4.16E+02 8.45E+01 1.63E+00 7.06E+05 1.13E+05 5.75E+05 2.01E-11 2.17E-08 1.11E+00

January 2021 Page 12 of 64 Rev. 18

LA-140 7.28E-02 7.40E-02 8.25E-02 LA-142 1.45E-07 1.49E-07 1.69E-07 CE-141 1.28E-01 1.27E-01 2.60E-01 CE-143 1.52E+01 1.51E+01 3.07E+01 NOTE:

The listed dose factors are for radionuclides that may be detected in liquid effluents and have significant dose consequences. The factors are decayed for one day to account for the time between effluent release and ingestion of fish by the maximum exposed individual.

January 2021 Page 13 of 64 Rev. 18

TABLE III.A.1 LIQUID EFFLUENT INGESTION DOSE FACTORS (DECAY CORRECTED)

AiDOSE FACTOR (MREM-ML PER HR-Ci)

RADIONUCLIDE ADULT BONE TEEN CHILD H-3 NA-24 P-32 CR-51 MN-54 FE-55 FE-59 CO-57 CO-58 CO-60 NI-63 ZN-65 SR-89 SR-90 Y-91M Y-93 NB-95 NB-95M ZR-95 ZR-97 MO-99 TC-99M RU-103 RU-105 AG-110M SN-113 TE-129M TE-131M TE-132 SB-124 SB-125 I-131 I-133 I-135 CS-134 CS-136 CS-137 CS-138 BA-139 BA-140 no data 1.65E+02 2.38E+05 no data no data 8.12E+02 1.26E+03 no data no data no data 3.84E+04 2.69E+04 3.08E+04 7.67E+05 1.51E-11 4.58E-02 5.08E+02 no data 8.13E-01 1.69E-02 no data 9.24E-04 8.30E+00 1.66E-02 3.87E+00 no data 1.27E+04 1.12E+03 2.29E+03 5.72E+01 3.69E+01 2.28E+02 3.72E+01 2.11E+00 3.47E+05 3.45E+04 4.44E+05 1.06E-11 1.71E-05 5.57E+02

no data 1.70E+02 2.58E+05 no data no data 8.47E+02 1.30E+03 no data no data no data 3.97E+04 2.43E+04 3.30E+04 6.31E+05 1.61E-11 4.90E-02 5.12E+02 no data 7.94E-01 1.71E-02 no data 9.22E-04 8.43E+00 1.73E-02 3.55E+00 no data 1.37E+04 1.21E+03 2.42E+03 5.59E+01 3.62E+01 2.38E+02 3.92E+01 2.16E+00 3.55E+05 3.46E+04 4.75E+05 1.14E-11 1.77E-05 5.63E+02 no data 1.98E+02 3.35E+05 no data no data 1.19E+03 1.68E+03 no data no data no data 5.58E+04 2.51E+04 5.19E+04 6.78E+05 2.57E-11 7.77E-02 6.04E+02 no data 1.78E+00 4.03E-02 no data 1.52E-03 1.55E+01 3.29E-02 7.84E+00 no data 1.80E+04 1.56E+03 3.07E+03 1.47E+02 9.59E+01 4.13E+02 6.84E+01 3.66E+00 4.30E+05 4.10E+04 6.01E+05 1.45E-11 4.07E-05 1.27E+03

January 2021 Page 14 of 64 Rev. 18

LA-140 1.44E-01 1.51E-01 2.36E-01 LA-142 3.19E-07 3.35E-07 5.29E-07 CE-141 1.89E-01 1.90E-01 5.21E-01 CE-143 2.06E-02 2.07E-02 5.66E-02 NOTE:

The listed dose factors are for radionuclides that may be detected in liquid effluents and have significant dose consequences. The factors are decayed for one day to account for the time between effluent release and ingestion of fish by the maximum exposed individual.

January 2021 Page 15 of 64 Rev. 18

TABLE III.A.1 LIQUID EFFLUENT INGESTION DOSE FACTORS (DECAY CORRECTED)

AiDOSE FACTOR (MREM-ML PER HR-Ci)

RADIONUCLIDE ADULT KIDNEY TEEN CHILD H-3 NA-24 P-32 CR-51 MN-54 FE-55 FE-59 CO-57 CO-58 CO-60 NI-63 ZN-65 SR-89 SR-90 Y-91M Y-93 NB-95 NB-95M ZR-95 ZR-97 MO-99 TC-99M RU-103 RU-105 AG-110M SN-113 TE-129M TE-131M TE-132 SB-124 SB-125 I-131 I-133 I-135 CS-134 CS-136 CS-137 CS-138 BA-139 BA-140 2.13E+00 1.65E+02 no data 3.28E-01 1.53E+03 no data no data no data no data no data no data 5.72E+04 no data no data no data no data 2.79E+02 no data 4.09E-01 5.14E-03 3.46E+02 3.96E-02 3.17E+01 2.14E-01 7.04E+00 no data 5.31E+04 5.55E+03 1.43E+04 no data no data 5.57E+02 1.12E+02 8.86E+00 2.67E+05 7.57E+04 2.06E+05 1.54E-11 1.14E-08 2.38E-01

1.53E+00 1.70E+02 no data 3.35E-01 1.51E+03 no data no data no data no data no data no data 5.41E+04 no data no data no data no data 2.75E+02 no data 3.68E-01 5.14E-03 3.61E+02 3.83E-02 2.97E+01 2.18E-01 6.40E+00 no data 5.74E+04 6.01E+03 1.47E+04 no data no data 5.73E+02 1.16E+02 8.77E+00 2.66E+05 7.42E+04 2.15E+05 1.61E-11 1.18E-08 2.34E-01 2.70E+00 1.98E+02 no data 2.57E-01 1.13E+03 no data no data no data no data no data no data 4.22E+04 no data no data no data no data 2.21E+02 no data 5.60E-01 8.35E-03 4.77E+02 4.33E-02 3.91E+01 2.89E-01 9.86E+00 no data 5.29E+04 5.22E+03 1.27E+04 no data no data 6.82E+02 1.41E+02 1.01E+01 2.19E+05 6.00E+04 1.87E+05 1.41E-11 1.90E-08 3.62E-01

January 2021 Page 16 of 64 Rev. 18

LA-140 no data no data no data LA-142 no data no data no data CE-141 5.94E-02 5.98E-02 1.14E-01 CE-143 6.70E-03 6.77E-03 1.29E-02 NOTE:

The listed dose factors are for radionuclides that may be detected in liquid effluents and have significant dose consequences. The factors are decayed for one day to account for the time between effluent release and ingestion of fish by the maximum exposed individual.

January 2021 Page 17 of 64 Rev. 18

TABLE III.A.1 LIQUID EFFLUENT INGESTION DOSE FACTORS (DECAY CORRECTED)

AiDOSE FACTOR (MREM-ML PER HR-Ci)

RADIONUCLIDE ADULT GI-LLI TEEN CHILD H-3 NA-24 P-32 CR-51 MN-54 FE-55 FE-59 CO-57 CO-58 CO-60 NI-63 ZN-65 SR-89 SR-90 Y-91M Y-93 NB-95 NB-95M ZR-95 ZR-97 MO-99 TC-99M RU-103 RU-105 AG-110M SN-113 TE-129M TE-131M TE-132 SB-124 SB-125 I-131 I-133 I-135 CS-134 CS-136 CS-137 CS-138 BA-139 BA-140 2.13E+00 1.65E+02 1.73E+05 3.74E+02 1.58E+04 3.22E+02 9.90E+03 6.94E+02 2.35E+03 6.30E+03 5.56E+02 5.38E+04 4.94E+03 2.22E+04 4.44E-11 1.45E+03 1.72E+06 no data 8.27E+02 1.06E+03 3.54E+02 1.54E+00 9.69E+02 1.01E+01 1.46E+03 no data 6.40E+04 5.44E+04 7.02E+04 1.62E+03 4.07E+02 8.58E+01 5.82E+01 6.24E+00 1.44E+04 1.55E+04 1.18E+04 8.94E-17 3.04E-05 1.15E+03

1.53E+00 1.70E+02 1.41E+05 2.57E+02 1.04E+04 2.60E+02 7.15E+03 5.24E+02 1.56E+03 4.33E+03 4.46E+02 3.58E+04 3.93E+03 1.77E+04 7.58E-10 1.50E+03 1.21E+06 no data 5.78E+02 9.19E+02 2.82E+02 1.69E+00 7.04E+02 1.40E+01 9.43E+02 no data 5.15E+04 4.63E+04 4.85E+04 1.13E+03 2.82E+02 6.57E+01 5.03E+01 6.16E+00 1.04E+04 1.09E+04 9.00E+03 9.90E-15 1.58E-04 8.69E+02 2.70E+00 1.98E+02 5.98E+04 8.98E+01 3.38E+03 1.17E+02 2.84E+03 2.34E+02 6.04E+02 1.70E+03 2.01E+02 1.18E+04 2.01E+03 9.13E+03 5.03E-08 1.18E+03 4.35E+05 no data 4.08E+02 8.81E+02 1.85E+02 1.69E+00 4.01E+02 2.15E+01 6.30E+02 no data 2.19E+04 2.19E+04 1.37E+04 9.19E+02 2.29E+02 3.70E+01 3.40E+01 5.03E+00 3.80E+03 3.96E+03 3.60E+03 9.25E-12 2.35E-03 6.43E+02

January 2021 Page 18 of 64 Rev. 18

LA-140 5.34E+03 4.25E+03 2.30E+03 LA-142 1.06E-03 4.52E-03 3.34E-02 CE-141 4.89E+02 3.63E+02 3.24E+02 CE-143 5.69E+02 4.54E+02 4.49E+02 NOTE:

The listed dose factors are for radionuclides that may be detected in liquid effluents and have significant dose consequences. The factors are decayed for one day to account for the time between effluent release and ingestion of fish by the maximum exposed individual.

January 2021 Page 19 of 64 Rev. 18

V IV.

Gaseous Pathway Dose Calculations IV.A.

ODCMS 4.8.C.1.1 and 4.8.C.1.2 The dose rate in areas at and beyond the SITE BOUNDARY due to radioactive materials released in gaseous effluents shall be determined by the expressions below:

IV.A.1 Noble Gases:

The dose rate from radioactive noble gas releases shall be determined by either of two methods. Method (a), the Gross Release Method, assumes that all noble gases released are the most limiting nuclide - Kr-88 for total body dose (vent and stack releases) and skin dose (vent releases) and Kr-87 for skin dose (stack releases). Method (b), the Isotopic Analysis Method, utilizes the results of noble gas analyses required by ODCMS 4.8.C.1.1.

a.

Gross Release Method DT B V QN S K Q V Q N V DS LS Q S 1.1BQ N S LV 1.1MQ QN V where:

The location is the site boundary, 1100m SSE from the vents. This location results in the highest calculated dose to an individual from noble gas releases.

DT B

=

total body dose rate, in mrem/yr.

DS

=

skin dose rate, in mrem/yr.

V

=

4.72 X 10-4 mrem/yr per Ci/sec; the constant for Kr-88 accounting for the gamma radiation from the elevated finite plume. This constant was developed using MARE program with plant specific inputs for PBAPS.

-/

I I

January 2021 Page 20 of 64 Rev. 18

IV.A.1.a (Cont'd)

QN S

= The gross release rate of noble gases from the stack determined by gross activity stack monitors averaged over one hour, in Ci/sec.

K = 1.47 X 104 mrem/yr per Ci/m3; the total body dose factor due to gamma emissions for Kr-88 (Reg. Guide 1.109, Table B-1).

Q

= 1.12 X 10-6 sec/m3; the highest calculated annual average relative concentration for any area at or beyond the SITE BOUNDARY for all vent releases.

QN V

= The gross release rate of noble gases in gaseous effluents from vent releases determined by gross activity vent monitors averaged over one hour, in Ci/sec.

LV

= 2.37 x 103 mrem/yr per Ci/m3; the skin dose factor due to beta emissions for Kr-88.

(Reg. Guide 1.109, Table B-1).

LS

= 9.73 X 103 mrem/yr per Ci/m3; the skin dose factor due to beta emissions for Kr-87.

(Reg. Guide 1.109, Table B-1).

Q

= 9.97 X 10-8 sec/m3; the highest calculated annual average relative concentration from the stack releases for any area at or beyond the SITE BOUNDARY.

B

= 1.74 X 10-4 mrad/yr per Ci/sec; the constant for Kr-87 accounting for the gamma radiation from the elevated finite plume. This constant was developed using MARE program with plant specific inputs for PBAPS.

M

= 1.52 X 104 mrad/yr per Ci/m3; the air dose factor due to gamma emissions for Kr-88.

(Reg. Guide 1.109, Table B-1).

1.1

= Unit conversion, converts air dose to skin dose, mrem/mrad.

V S

-/

January 2021 Page 21 of 64 Rev. 18

V IV.A.1. b.

Isotopic Analysis Method DT B Vi i

Q iS Ki Q Q iV

DS

i

where:

The location is the site boundary, 1100m SSE from the vents. This location results in the highest calculated dose to an individual from noble gas releases.

DT B

= total body dose rate, in mrem/yr.

DS

= skin dose rate, in mrem/yr.

Vi

= The constant for each identified noble gas radionuclide for the gamma radiation from the elevated finite plume. The constants were developed using the MARE program with plant specific inputs for PBAPS. Values are listed on Table IV.A.1, in mrem/yr per Ci/sec.

QiS

= The release rate of noble gas radionuclide, i, in gaseous effluents from the stack determined by isotopic analysis averaged over one hour, in Ci/sec.

Ki

= The total body dose factor due to gamma emissions for each identified noble gas radionuclide. Values are listed on Table IV.A.1, in mrem/yr per Ci/m3.

Q

= 1.12 X 10-6 sec/m3; the highest calculated annual average relative concentration for any area at or beyond the SITE BOUNDARY for all vent releases.

V

[(Li (/ Q)S + 1.1Bi) QiS + (Li + 1.1Mi) ( /Q)VQiV]

-/

January 2021 Page 22 of 64 Rev. 18

QiV

= The release rate of noble gas radionuclide, i, in gaseous effluents from all vent releases determined by isotopic analysis averaged over one hour, in Ci/sec.

IV.A.1.b (Cont'd)

Li

= The skin dose factor due to beta emissions for each identified noble gas radionuclide. Values are listed on Table IV.A.1, in mrem/yr per Ci/m3.

Q

= 9.97 X 10-8 sec/m3; the highest calculated annual average relative concentration from the stack releases for any area at or beyond the SITE BOUNDARY.

Bi

= The constant for each identified noble gas radionuclide accounting for the gamma radiation from the elevated finite plume.

The constants were developed using MARE program with plant specific inputs for PBAPS. Values are listed on Table IV.A.1, in mrad/yr per Ci/sec.

Mi

= The air dose factor due to gamma emissions for each identified noble gas radionuclide. Values are listed on Table IV.A.1, in mrad/yr per Ci/m3.

1.1

= Unit conversion, coverts air dose to skin dose, mrem/mrad.

S

Page 23 of 64 Rev. 18 TABLE IV.A.1 - Constants for Isotopic Analysis Method (corrected for decay during transit)

Radionuclide Plume-Air Dose Factor Bi (mrad/yr per Ci/sec)

Total Body Dose Factor Ki (mrem/yr per Ci/m3)

Skin Dose Factor Li (mrem/yr per Ci/m3)

Gamma Air Dose Factor Mi (mrad/yr per Ci/m3)

Beta Air Dose Factor Ni (mrad/yr per Ci/m3)

Plume-Body Dose Factor Vi (mrem/yr per Ci/sec)

Kr-85m 4.02E-05 1.17E+03 1.46E+03 1.23E+03 1.97E+03 3.76E-05 Kr-87 1.74E-04 5.92E+03 9.73E+03 6.17E+03 1.03E+04 1.66E-04 Kr-88 4.90E-04 1.47E+04 2.37E+03 1.52E+04 2.93E+03 4.72E-04 Xe-133 1.19E-05 2.94E+02 3.06E+02 3.53E+02 1.05E+03 1.11E-05 Xe-133m 1.09E-05 2.51E+02 9.94E+02 3.27E+02 1.48E+03 1.01E-05 Xe-135 6.37E-05 1.81E+03 1.86E+03 1.92E+03 2.46E+03 5.95E-05 Xe-135m 6.61E-05 2.53E+03 5.76E+02 2.72E+03 5.99E+02 6.17E-05 Xe-138 1.52E-04 6.98E+03 3.26E+03 7.28E+03 3.75E+03 1.46E-04 The values Ki, Li, Mi, and Ni are taken from Reg. Guide 1.109, Table B-1. The values Bi and Vi were developed using the MARE program with plant specific inputs for PBAPS.

January 2021

Page 24 of 64 Rev. 18 January 2021

IV.A.2 Iodine-131, iodine-133, tritium and radioactive materials in particulate form, other than noble gases, with half-lives greater than eight days:

The dose rate shall be determined for either of two critical organs and most restrictive age group. Child thyroid dose is limiting when iodine releases exceed 10 percent of the total release rates. The teenager lung dose is limiting when iodine is either not present or a small fraction of the total release.

When it is not clear which organ dose will be limiting, doses for both restrictive age group organs will be calculated and the limiting organ dose identified.

DPi WS QiS WV QiV WV qiV i

where:

The location is the site boundary, 1100m SSE from the vents.

D

= dose rate to the critical organ most restrictive age group, in mrem/yr.

Pi

= The dose parameter for radionuclides other than noble gases for the inhalation pathway. The dose factors are based on the critical organ, and most restrictive age group.

All values are from Reg. Guide 1.109 (Tables E-5, E-8, E-9 and E-10). Values are listed on Table IV.A.2, in mrem/yr per Ci/m3 WS

= 1.09 X 10-8 sec/m3; the highest calculated annual average relative concentration for any area at or beyond the SITE BOUNDARY from stack releases.

(SSE boundary)

QiS

= The release rate of radionuclides; i, in gaseous effluents from the stack determined by the effluent sampling and analysis program (ODCMS Table 4.8.C.1) in Ci/sec.

WV

= 1.32 X 10-6 sec/m3; the highest calculated annual average relative concentration for any area at or beyond the SITE BOUNDARY

Page 25 of 64 Rev. 18 January 2021

for all vent releases. (SSE boundary)

IV.A.2. (Cont'd)

QiV

=

The release rate of radionuclide, i, in gaseous effluents from all vent releases, determined by the effluent sampling and analysis program (ODCMS Table 4.8.C.1) in Ci/sec.

q iv

= The release rate of radionuclide, i, in gaseous effluents from abnormal release sources.

Page 26 of 64 Rev. 18 January 2021

TABLE IV.A.2 Pi CONSTANTS FOR CRITICAL ORGAN FOR THE MOST RESTRICTIVE AGE GROUP (mrem/yr per Ci/m3)

RADIONUCLIDE INFANT THYROID DOSE FACTOR INFANT LUNG DOSE FACTOR CHILD THYROID DOSE FACTOR TEENAGER LUNG DOSE FACTOR H-3 6.47E+02 6.47E+02 1.13E+03 1.27E+03 C-14 5.31E+03 5.31E+03 6.73E+03 4.87E+03 NA-24 1.06E+04 1.06E+04 1.61E+04 1.38E+04 P-32 no data no data no data no data Cr-51 5.75E+01 1.28E+04 8.55+01 2.10E+04 MN-54 no data 1.00E+06 no data 1.98E+06 FE-55 no data 8.69E+04 no data 1.24E+05 MN-56 no data 1.25E+04 no data 1.52E+04 CO-58 no data 7.77E+05 no data 1.34E+06 FE-59 no data 1.02E+06 no data 1.53E+06 CO-60 no data 4.51E+06 no data 8.72E+06 NI-63 no data 2.09E+05 no data 3.07E+05 CU-64 no data 9.30E+03 no data 1.11E+04 NI-65 no data 8.12E+03 no data 9.36E+03 ZN-65 no data 6.47E+05 no data 1.24E+06 ZN-69 no data 1.47E+03 no data 1.58E+03 BR-83 no data no data no data no data BR-84 no data no data no data no data BR-85 no data no data no data no data RB-86 no data no data no data no data RB-88 no data no data no data no data RB-89 no data no data no data no data SR-89 no data 2.03E+06 no data 2.42E+06 SR-90 no data 1.12E+07 no data 1.65E+07 Y-90 no data 2.69E+05 no data 2.93E+05 SR-91 no data 5.26E+04 no data 6.07E+04 Y-91M no data 2.79E+03 no data 3.20E+03 Y-91 no data 2.45E+06 no data 2.94E+06 SR-92 no data 2.38E+04 no data 2.74E+04 Y-92 no data 2.45E+04 no data 2.68E+04 Y-93 no data 7.64E+04 no data 8.32E+04 NB-95 no data 4.79E+05 no data 7.51E+05 ZR-95 no data 1.75E+06 no data 2.69E+06 ZR-97 no data 1.10E+05 no data 1.30E+05 MO-99 no data 1.35E+05 no data 1.54E+05 TC-99M no data 8.11E+02 no data 1.15E+03 TC-101 no data 5.84E+02 no data 6.67E+02

Page 27 of 64 Rev. 18 January 2021

RU-103 no data 5.52E+05 no data 7.83E+05 RU-105 no data 1.57E+04 no data 1.82E+04 RU-106 no data 1.16E+07 no data 1.61E+07 AG-110M no data 3.67E+06 no data 6.75E+06 TE-125M 1.62E+03 4.47E+05 1.92E+03 5.36E+05 TE-127M 4.87E+03 1.31E+06 6.07E+03 1.66E+06 TE-127 1.85E+00 1.04E+04 1.96E+00 1.12E+04 TE-129M 5.47E+03 1.68E+06 6.33E+03 1.98E+06 TE-129 6.75E-02 3.00E+03 7.14E-02 3.30E+03 I-130 1.60E+06 no data 1.85E+06 no data I-131 1.48E+07 no data 1.62E+07 no data TE-131M 8.93E+01 1.99E+05 9.77E+01 2.38E+05 TE-131 1.58E-02 2.06E+03 1.70E-02 2.34E+03 I-132 1.69E+05 no data 1.94E+05 no data TE-132 2.79E+02 3.40E+05 3.18E+02 4.49E+05 I-133 3.56E+06 no data 3.85E+06 0.00E+00 CS-134 no data 7.97E+04 0.00E+00 1.46E+05 I-134 4.45E+04 no data 5.07E+04 no data I-135 6.96E+05 no data 7.92E+05 no data CS-136 no data 1.18E+04 no data 1.78E+04 CS-137 no data 7.13E+04 no data 1.21E+05 CS-138 no data 6.54E+01 no data 7.87E+01 BA-139 no data 5.95E+03 no data 6.46E+03 BA-140 no data 1.60E+06 no data 2.03E+06 LA-140 no data 1.68E+05 no data 2.14E+05 BA-141 no data 2.97E+03 no data 3.29E+03 CE-141 no data 5.17E+05 no data 6.14E+05 BA-142 no data 1.55E+03 no data 1.91E+03 LA-142 no data 8.22E+03 no data 1.02E+04 CE-143 no data 1.16E+05 no data 1.30E+05 PR-143 no data 4.33E+05 no data 4.83E+05 CE-144 no data 9.84E+06 no data 1.34E+07 PR-144 no data 1.61E+03 no data 1.75E+03 ND-147 no data 3.22E+05 no data 3.72E+05 W-187 no data 3.96E+04 no data 4.74E+04 NP-239 no data 5.95E+04 no data 6.49E+04

Page 28 of 64 Rev. 18 January 2021 IV.B.

ODCMS 4.8.C.2.1 The air dose in areas at and beyond the SITE BOUNDARY due to noble gases released in gaseous effluents shall be determined by the expressions below.

The air dose shall be determined by either of two methods.

Method (a), the Gross Release Method, assumes that all noble gases released are the most limiting nuclide - Kr-88 for gamma radiation and Kr-87 for beta radiation. Method (b),

the Isotopic Analysis Method, utilizes the results of noble gas analyses required by ODCMS 4.8.C.1.1.

IV.B.1 for gamma radiation:

a.

Gross Release Method D 3.17 x 10 8

where:

The location is the SITE BOUNDARY 1100m SSE from the vents. This location results in the highest calculated gamma air dose from noble gas releases.

D

= gamma air dose, in mrad.

3.17 x 108 = years per second.

M

= 1.52 x 104 mrad/yr per Ci/m3; the air dose factor due to gamma emissions for Kr-88.

(Reg. Guide 1.109, Table B-1)

Q

~

= 1.12 x 10-6 sec/m3; the highest calculated annual average relative concentration from vent releases for any area at or beyond the SITE BOUNDARY.

QV

= The gross release of noble gas radionuclides in gaseous effluents from all vents, determined by gross activity vent monitors, in Ci. Releases shall be cumulative over the calendar quarter or year as appropriate.

V M ( /Q)v Qv+ B Qs ]

~ ~

-/

January 2021 Page 29 of 64 Rev. 18

IV.B.1. a (Cont'd)

B

= 4.90 x 10-4 mrad/year per Ci/sec; the constant for Kr-88 accounting for the gamma radiation from the elevated finite plume.

The constant was developed using the MARE program with plant specific inputs for PBAPS.

~

QS

= The gross release of noble gas radionuclides in gaseous releases from the stack determined by gross activity stack monitor in Ci. Releases shall be cumulative over the calendar quarter or year as appropriate.

b.

Isotopic Analysis Method D

3.17 x 10 where:

i The location is the SITE BOUNDARY, 1100m SSE from the vents. This location results in the highest calculated gamma air dose from noble gas releases.

D

= gamma air dose, in mrad.

3.17 x 108 = years per second.

Mi

= The air dose factor due to gamma emissions for each identified noble gas radionuclide. Values are listed on Table IV.A.1, in mrad/yr per Ci/m3.

Q

~

= 1.12 x 10-6 sec/m3; the highest calculated average relative concentration from vent releases for any area at or beyond the SITE BOUNDARY.

QiV

= The release of noble gas radionuclides, i, in gaseous effluents from all vents as determined by isotopic analysis, in Ci.

Releases shall be cumulative over the calendar quarter or year, as appropriate.

V

-8

[Mi ( /Q)v Qiv+ Bi Qis]

~ ~

-/

January 2021 Page 30 of 64 Rev. 18 Bi

= The constant for each identified noble gas radionuclide accounting for the gamma radiation for the elevated finite plume.

The constants were developed using the MARE program with plant specific inputs for PBAPS. Values are listed on Table IV.A.1, in mrad/yr per Ci/sec.

IV.B.1. b. (Cont'd)

~

QiS

= The release of noble gas radionuclides, i, in gaseous effluents from the stack determined by isotopic analysis, in Ci.

Releases shall be cumulative over the calendar quarter or year, as appropriate.

IV.B.2. for beta radiation:

a.

D 3.17 x 10 Gross Release Method where:

The location is the SITE BOUNDARY 1100m SSE from the vents. This location results in the highest calculated gamma air dose from noble gas releases.

D

= beta air dose, in mrad.

3.17 x 108 = years per second.

N

= 1.03 x 104 mrad/yr per Ci/m3; the air dose factor due to beta emissions for Kr-87.

(Reg. Guide 1.109, Table B-1)

Q

~

= 1.12 x 10-6 sec/m3; the highest calculated annual average relative concentration from vent releases for any area at or beyond the SITE BOUNDARY.

V

-8 N [(/ Q)VQv + ( /Q)SQs ]

~ ~

I

January 2021 Page 31 of 64 Rev. 18 QV

= The gross release of noble gas radionuclides ingaseouseffluentsfromallventsdeterminedbygrossactivityventmonitors, inCi.Releases shall be cumulative over the calendar quarter or year, as appropriate.

Q

~

= 9.97 x 10-8 sec/m3; the highest calculated annual average relative concentration from the stack releases for any area at or beyond the SITE BOUNDARY.

QS

= The gross release of noble gas radionuclides in gaseous releases from the stack determined by gross activity stack monitors, in Ci. Releases shall be cumulative over the calendar quarter or year, as appropriate.

IV.B.2. b.

Isotopic Analysis Method D

3.17 x 10 3.17 x 108 = years per second.

Ni

= The air dose factor due to beta emissions for each identified noble gas radionuclide. Values are listed on Table IV.A.1, in mrad/yr per Ci/m3.

Q

~

= 1.12 x 10-6 sec/m3; the highest calculated annual average relative concentration from vent releases for any area at or beyond the SITE BOUNDARY.

QiV

= The release of noble gas radionuclide, i, in gaseous effluents from all vents as determined by isotopic analysis, in Ci.

Releases shall be cumulative over the calendar quarter or year, as appropriate.

Q

~

= 9.97 x 10-8 sec/m3; the highest calculated annual average relative concentration from the stack releases for any area at or beyond the SITE BOUNDARY.

QiS

= The release of noble gas radionuclide, i, in gaseous effluents from the stack as determined by isotopic analysis, in Ci.

Releases shall be cumulative over the S

V S

8 Ni [(/Q)V QiV + (/Q)S QiS ]

~ ~

i

-/

January 2021 Page 32 of 64 Rev. 18 calendar quarter or year, as appropriate.

January 2021 Page 33 of 64 Rev. 18 IV.C ODCMS 4.8.C.3.1 The dose to an individual from iodine-131, iodine-133, tritium and radioactive materials in particulate form and radionuclides other than noble gases with half-lives greater than eight days in gaseous effluents released to areas at and beyond the SITE BOUNDARY.

The dose shall be determined for the limiting organ. Infant thyroid doses are dominating any time that either iodine-131 release rates are more than two (2) percent of total release rates or iodine-133 exceeds 25 percent of total release rates. In these cases only iodine-131 and iodine-133 are potentially significant.

For cases where there is no detectable iodine releases, doses shall be determined for infant bone and liver. Both bone and liver doses are calculated because the controlling dose is dependent upon the presence of strontium.

When it is not clear whether thyroid, bone, or liver doses are controlling, all three shall be calculated and the limiting dose identified.

~

D 3.17 x108 Fe Ri WS QiS WV QiV WV qiV

where:

Location is the critical pathway dairy 1500m SW from vents.

D

= limiting dose to the critical infant organ, from the milk, or inhalation, or ground plane pathways, in mrem.

3.17 x 108 = years per second.

Fe

= Fraction that is elemental (0.5 for iodines and 1.0 for all other elements).

Ri

= The dose factor for each identified radionuclide; i, in m2 (mrem/yr) per Ci/sec except tritium, carbon-14, and inhalation pathway, which is in mrem/yr per Ci/m3. The dose factors are for the critical individual organ for the most restrictive age group, infant. Table IV.C.1 list values for the ingestion pathway, Table IV.C.2 for the inhalation pathway, and Table IV.C.3 for the ground plane pathway. See Site Specific Data.**

i

January 2021 Page 33 of 64 Rev. 18 q

IV.C (Continued)

WS

= 4.19 x 10-10 meters-2 D / Q

for the ingestion and ground plane pathway for stack releases.

Tritium, carbon-14, and the inhalation pathway use a ( /Q) of 8.11 x 10-9 sec/m3.

~

QiS

= The release of radionuclide, i, in gaseous effluents from the stack determined by the effluent sampling and analysis program (ODCMS Table 4.8.C.1), in Ci. Releases shall be cumulative over the calendar quarter or year, as appropriate.

WV

= 1.58 x 10-9 meters-2 D Qfor the ingestion and ground plane pathway for vent releases.

Tritium, carbon-14, and the inhalation pathway use a ( /Q) of 4.43 x 10-7 sec/m3.

- See Note 2 and 3 in Bases

~

QiV

= The release of radionuclide, i, in gaseous effluents from the vents determined by the effluent sampling and analysis program (ODCMS Table 4.8.C.1) in Ci. Release shall be cumulative over the calendar quarter or year, as appropriate.

~

iV

= The release of radionuclide, i, in gaseous effluents from abnormal release sources in Ci. Release shall be cumulative over the calendar quarter or year, as appropriate.

-/

January 2021 Page 34 of 64 Rev. 18 TABLE IV.C.1 Ri CONSTANTS INGESTION PATHWAY (m2 (mrem/yr) per Ci/sec)*

Radionuc lide Infant Bone Infant Liver Infant Thyroid Infant Kidney Infant Lung Infant GI-LLI Infant Skin Infant T Body H-3 no data 1.30E+03 1.30E+03 1.30E+03 1.30E+03 1.30E+03 no data 1.30E+03 C-14 3.23E+06 6.89E+05 6.89E+05 6.89E+05 6.89E+05 6.89E+05 no data 6.89E+05 NA-24 4.48E+06 4.48E+06 4.48E+06 4.48E+06 4.48E+06 4.48E+06 no data 4.48E+06 P-32 4.74E+10 2.79E+09 no data no data no data 6.41E+08 no data 1.84E+09 CR-51 no data no data 3.35E+04 7.32E+03 6.51E+04 1.50E+06 no data 5.13E+04 MN-54 no data 1.93E+07 no data 4.28E+06 no data 7.09E+06 no data 4.38E+06 FE-55 7.09E+07 4.58E+07 no data no data 2.24E+07 5.81E+06 no data 1.22E+07 MN-56 no data 9.24E-03 no data 7.94E-03 no data 8.39E-01 no data 1.59E-03 CO-58 no data 9.57E+06 no data no data no data 2.39E+07 no data 2.39E+07 FE-59 7.92E+07 1.38E+08 no data no data 4.09E+07 6.61E+07 no data 5.45E+07 CO-60 no data 4.69E+07 no data no data no data 1.12E+08 no data 1.11E+08 NI-63 1.88E+10 1.17E+09 no data no data no data 5.80E+07 no data 6.54E+08 CU-64 no data 5.42E+04 no data 9.17E+04 no data 1.11E+06 no data 2.51E+04 NI-65 1.03E+00 1.16E-01 no data no data no data 8.85E+00 no data 5.29E-02 ZN-65 2.69E+09 9.22E+09 no data 4.47E+09 no data 7.78E+09 no data 4.25E+09 ZN-69 3.09E+04 5.56E+04 no data 2.31E+04 no data 4.54E+06 no data 4.14E+03 BR-83 no data no data no data no data no data no data no data 1.20E-01 BR-84 no data no data no data no data no data no data no data 1.64E-23 BR-85 no data no data no data no data no data no data no data no data RB-86 no data 6.69E+09 no data no data no data 1.71E+08 no data 3.31E+09 RB-88 no data 5.60E-45 no data no data no data 5.45E-45 no data 3.07E-45 RB-89 no data 9.86E-53 no data no data no data 3.36E-53 no data 6.79E-53 SR-89 4.58E+09 no data no data no data no data 9.42E+07 no data 1.31E+08 SR-90 6.55E+10 no data no data no data no data 8.18E+08 no data 1.67E+10 Y-90 1.99E+02 no data no data no data no data 2.74E+05 no data 5.33E+00 SR-91 7.94E+04 no data no data no data no data 9.40E+04 no data 2.87E+03 Y-91M 1.66E-19 no data no data no data no data 5.53E-16 no data 5.65E-21 Y-91 2.77E+04 no data no data no data no data 1.98E+06 no data 7.37E+02 SR-92 1.36E+00 no data no data no data no data 1.47E+01 no data 5.05E-02 Y-92 1.57E-04 no data no data no data no data 3.01E+00 no data 4.43E-06 Y-93 6.31E-01 no data no data no data no data 4.98E+03 no data 1.72E-02 NB-95 1.98E+05 8.16E+04 no data 5.85E+04 no data 6.89E+07 no data 4.72E+04 ZR-95 2.62E+03 6.40E+02 no data 6.89E+02 no data 3.19E+05 no data 4.54E+02 ZR-97 1.19E+00 2.04E-01 no data 2.05E-01 no data 1.30E+04 no data 9.31E-02 MO-99 no data 6.07E+07 no data 9.07E+07 no data 2.00E+07 no data 1.18E+07 TC-99M 8.04E+00 1.66E+01 no data 1.78E+02 8.67E+00 4.82E+03 no data 2.14E+02 TC-101 7.44E-60 9.38E-60 no data 1.11E-58 5.11E-60 1.59E-57 no data 9.28E-59 RU-103 2.97E+03 no data no data 6.18E+03 no data 3.61E+04 no data 9.93E+02 RU-105 2.36E-03 no data no data 1.73E-02 no data 9.38E-01 no data 7.94E-04 RU-106 9.54E+04 no data no data 1.13E+05 no data 7.24E+05 no data 1.19E+04 AG-110M 1.87E+08 1.37E+08 no data 1.95E+08 no data 7.09E+09 no data 9.04E+07 SB-124 5.31E+07 7.81E+05 1.41E+05 no data 3.32E+07 1.64E+08 no data 1.64E+07 SB-125 5.23E+07 5.06E+05 6.55E+04 no data 3.03E+07 6.98E+07 no data 1.08E+07 TE-125M 5.68E+07 1.90E+07 1.91E+07 no data no data 2.71E+07 no data 7.68E+06 TE-127M 1.82E+08 6.03E+07 5.26E+07 4.48E+08 no data 7.34E+07 no data 2.20E+07 TE-127 1.85E+03 6.19E+02 1.50E+03 4.51E+03 no data 3.88E+04 no data 3.97E+02

January 2021 Page 35 of 64 Rev. 18 TE-129M 1.84E+08 6.32E+07 7.08E+07 4.61E+08 no data 1.10E+08 no data 2.84E+07 TE-129 7.99E-10 2.76E-10 6.70E-10 1.99E-09 no data 6.39E-08 no data 1.87E-10 I-130 1.04E+06 2.28E+06 2.56E+08 2.51E+06 no data 4.89E+05 no data 9.17E+05 I-131 7.97E+08 9.39E+08 3.08E+11 1.10E+09 no data 3.35E+07 no data 4.13E+08 TE-131M 9.87E+05 3.97E+05 8.05E+05 2.73E+06 no data 6.69E+06 no data 3.28E+05 TE-131 1.03E-32 3.79E-33 9.15E-33 2.62E-32 no data 4.14E-31 no data 2.88E-33 I-132 3.66E-01 7.43E-01 3.48E+01 8.29E-01 no data 6.02E-01 no data 2.65E-01 TE-132 6.17E+06 3.05E+06 4.51E+06 1.91E+07 no data 1.13E+07 no data 2.85E+06 I-133 1.06E+07 1.54E+07 2.81E+09 1.81E+07 no data 2.61E+06 no data 4.52E+06 CS-134 1.90E+10 3.54E+10 no data 9.11E+09 3.73E+09 9.61E+07 no data 3.57E+09 I-134 4.81E-12 9.86E-12 2.30E-10 1.10E-11 no data 1.02E-11 no data 3.51E-12 I-135 3.21E+04 6.39E+04 5.73E+06 7.12E+04 no data 2.31E+04 no data 2.33E+04 CS-136 5.80E+08 1.71E+09 no data 6.80E+08 1.39E+08 2.59E+07 no data 6.37E+08 CS-137 2.77E+10 3.24E+10 no data 8.71E+09 3.53E+09 1.01E+08 no data 2.30E+09 CS-138 2.58E-23 4.20E-23 no data 2.09E-23 3.27E-24 6.71E-23 no data 2.04E-23 BA-139 1.26E-07 8.32E-11 no data 5.00E-11 5.04E-11 7.95E-06 no data 3.63E-09 BA-140 7.09E+07 7.09E+04 no data 1.68E+04 4.35E+04 1.74E+07 no data 3.65E+06 LA-140 1.18E+01 4.67E+00 no data no data no data 5.49E+04 no data 1.20E+00 BA-141 1.41E-45 9.65E-49 no data 5.80E-49 5.87E-49 1.72E-44 no data 4.44E-47 CE-141 1.42E+04 8.69E+03 no data 2.68E+03 no data 4.49E+06 no data 1.02E+03 BA-142 7.43E-80 6.18E-83 no data 3.56E-83 3.74E-83 3.07E-79 no data 3.66E-81 LA-142 4.99E-11 1.83E-11 no data no data no data 3.11E-06 no data 4.39E-12 CE-143 1.16E+02 7.70E+04 no data 2.24E+01 no data 4.49E+05 no data 8.78E+00 PR-143 4.38E+02 1.64E+02 no data 6.09E+01 no data 2.31E+05 no data 2.17E+01 CE-144 1.14E+06 4.68E+05 no data 1.89E+05 no data 6.55E+07 no data 6.40E+04 PR-144 1.70E-53 6.59E-54 no data 2.39E-54 no data 3.07E-49 no data 8.58E-55 ND-147 2.58E+02 2.65E+02 no data 1.02E+02 no data 1.68E+05 no data 1.63E+01 W-187 1.79E+04 1.24E+04 no data no data no data 7.31E+05 no data 4.30E+03 NP-239 1.06E+01 9.51E-01 no data 1.90E+00 no data 2.75E+04 no data 5.37E-01 NP-237 5.33E+07 3.53E+06 no data 1.41E+07 no data 1.83E+06 no data 2.33E+06 NP-238 1.02E+02 2.56E+00 no data 5.58E+00 no data 3.42E+04 no data 1.57E+00

Tritium and C-14 Ri values in units of mrem/yr per Ci/m3

January 2021 Page 36 of 64 Rev. 18 TABLE IV.C.2 Ri CONSTANTS INHALATION PATHWAY (mrem/yr per Ci/m3)

Radionuclide Infant Bone Infant Liver Infant Thyroid Infant Kidney Infant Lung Infant GI-LLI Infant Skin Infant T Body H-3 no data 6.47E+02 6.47E+02 6.47E+02 6.47E+02 6.47E+02 no data 6.47E+02 C-14 2.65E+04 5.31E+03 5.31E+03 5.31E+03 5.31E+03 5.31E+03 no data 5.31E+03 NA-24 1.06E+04 1.06E+04 1.06E+04 1.06E+04 1.06E+04 1.06E+04 no data 1.06E+04 P-32 2.03E+06 1.12E+05 no data no data no data 1.61E+04 no data 7.74E+04 CR-51 no data no data 5.75E+01 1.32E+01 1.28E+04 3.57E+02 no data 8.95E+01 MN-54 no data 2.53E+04 no data 4.98E+03 1.00E+06 7.06E+03 no data 4.98E+03 FE-55 1.97E+04 1.18E+04 no data no data 8.69E+04 1.10E+03 no data 3.33E+03 MN-56 no data 1.54E+00 no data 1.10E+00 1.25E+04 7.17E+04 no data 2.21E-01 CO-58 no data 1.22E+03 no data no data 7.77E+05 1.11E+04 no data 1.82E+03 FE-59 1.36E+04 2.35E+04 no data no data 1.02E+06 2.48E+04 no data 9.48E+03 CO-60 no data 8.02E+03 no data no data 4.51E+06 3.19E+04 no data 1.18E+04 NI-63 3.39E+05 2.04E+04 no data no data 2.09E+05 2.42E+03 no data 1.16E+04 CU-64 no data 1.88E+00 no data 3.98E+00 9.30E+03 1.50E+04 no data 7.74E-01 NI-65 2.39E+00 2.84E-01 no data no data 8.12E+03 5.01E+04 no data 1.23E-01 ZN-65 1.93E+04 6.26E+04 no data 3.25E+04 6.47E+05 5.14E+04 no data 3.11E+04 ZN-69 5.39E-02 9.67E-02 no data 4.02E+02 1.47E+03 1.32E+04 no data 7.18E-03 BR-83 no data no data no data no data no data no data no data 3.81E+02 BR-84 no data no data no data no data no data no data no data 4.00E+02 BR-85 no data no data no data no data no data no data no data 2.04E+01 RB-86 no data 1.90E+05 no data no data no data 3.04E+03 no data 8.82E+04 RB-88 no data 5.57E+02 no data no data no data 3.39E+02 no data 2.87E+02 RB-89 no data 3.21E+02 no data no data no data 6.82E+01 no data 2.06E+02 SR-89 3.98E+05 no data no data no data 2.03E+06 6.40E+04 no data 1.14E+04 SR-90 4.09E+07 no data no data no data 1.12E+07 1.31E+05 no data 2.59E+06 Y-90 3.29E+03 no data no data no data 2.69E+05 1.04E+05 no data 8.82E+01 SR-91 9.56E+01 no data no data no data 5.26E+04 7.34E+04 no data 3.46E+00 Y-91M 4.07E-01 no data no data no data 2.79E+03 2.35E+03 no data 1.39E-02 Y-91 5.88E+05 no data no data no data 2.45E+06 7.03E+04 no data 1.57E+04 SR-92 1.05E+01 no data no data no data 2.38E+04 1.40E+05 no data 3.91E-01 Y-92 1.64E+01 no data no data no data 2.45E+04 1.27E+05 no data 4.61E-01 Y-93 1.50E+02 no data no data no data 7.64E+04 1.67E+05 no data 4.07E+00 NB-95 1.57E+04 6.43E+03 no data 4.72E+03 4.79E+05 1.27E+04 no data 3.78E+03 ZR-95 1.15E+05 2.79E+04 no data 3.11E+04 1.75E+06 2.17E+04 no data 2.03E+04 ZR-97 1.50E+02 2.56E+01 no data 2.59E+01 1.10E+05 1.40E+05 no data 1.17E+01 MO-99 no data 1.65E+02 no data 2.65E+02 1.35E+05 4.87E+04 no data 3.23E+01 TC-99M 1.40E-03 2.88E-03 no data 3.11E-02 8.11E+02 2.03E+03 no data 3.72E-02 TC-101 6.51E-05 8.23E-05 no data 9.79E-04 5.84E+02 8.44E+02 no data 8.12E-04 RU-103 2.02E+03 no data no data 4.24E+03 5.52E+05 1.61E+04 no data 6.79E+02 RU-105 1.22E+00 no data no data 8.99E-01 1.57E+04 4.84E+04 no data 4.10E-01 RU-106 8.68E+04 no data no data 1.07E+05 1.16E+07 1.64E+05 no data 1.09E+04 AG-110M 9.98E+03 7.22E+03 no data 1.09E+04 3.67E+06 3.30E+04 no data 5.00E+03 TE-125M 4.76E+03 1.99E+03 1.62E+03 no data 4.47E+05 1.29E+04 no data 6.58E+02 TE-127M 1.67E+04 6.90E+03 4.87E+03 3.75E+04 1.31E+06 2.73E+04 no data 2.07E+03 TE-127 2.23E+00 9.53E-01 1.85E+00 4.86E+00 1.04E+04 2.44E+04 no data 4.89E-01 TE-129M 1.41E+04 6.09E+03 5.47E+03 3.18E+04 1.68E+06 6.90E+04 no data 2.23E+03 TE-129 7.88E-02 3.47E-02 6.75E-02 1.75E-01 3.00E+03 2.63E+04 no data 1.88E-02 I-130 6.36E+03 1.39E+04 1.60E+06 1.53E+04 no data 1.99E+03 no data 5.57E+03 I-131 3.79E+04 4.44E+04 1.48E+07 5.18E+04 no data 1.06E+03 no data 1.96E+04

January 2021 Page 37 of 64 Rev. 18 TE-131M 1.07E+02 5.50E+01 8.93E+01 2.65E+02 1.99E+05 1.19E+05 no data 3.63E+01 TE-131 1.74E-02 8.22E-03 1.58E-02 3.99E-02 2.06E+03 8.22E+03 no data 5.00E-03 I-132 1.69E+03 3.54E+03 1.69E+05 3.95E+03 no data 1.90E+03 no data 1.26E+03 TE-132 3.72E+02 2.37E+02 2.79E+02 1.04E+03 3.40E+05 4.41E+04 no data 1.76E+02 I-133 1.32E+04 1.92E+04 3.56E+06 2.24E+04 no data 2.16E+03 no data 5.60E+03 CS-134 3.96E+05 7.03E+05 no data 1.90E+05 7.97E+04 1.33E+03 no data 7.45E+04 I-134 9.21E+02 1.88E+03 4.45E+04 2.09E+03 no data 1.29E+03 no data 6.65E+02 I-135 3.86E+03 7.60E+03 6.96E+05 8.47E+03 no data 1.83E+03 no data 2.77E+03 CS-136 4.83E+04 1.35E+05 no data 5.64E+04 1.18E+04 1.43E+03 no data 5.29E+04 CS-137 5.49E+05 6.12E+05 no data 1.72E+05 7.13E+04 1.33E+03 no data 4.55E+04 CS-138 5.05E+02 7.81E+02 no data 4.10E+02 6.54E+01 8.76E+02 no data 3.98E+02 BA-139 1.48E+00 9.84E-04 no data 5.92E-04 5.95E+03 5.10E+04 no data 4.30E-02 BA-140 5.60E+04 5.60E+01 no data 1.34E+01 1.60E+06 3.84E+04 no data 2.90E+03 LA-140 5.05E+02 2.00E+02 no data no data 1.68E+05 8.48E+04 no data 5.15E+01 BA-141 1.57E-01 1.08E-04 no data 6.50E-05 2.97E+03 4.75E+03 no data 4.97E-03 CE-141 2.77E+04 1.67E+04 no data 5.25E+03 5.17E+05 2.16E+04 no data 1.99E+03 BA-142 3.98E-02 3.30E-05 no data 1.90E-05 1.55E+03 6.93E+02 no data 1.96E-03 LA-142 1.03E+00 3.77E-01 no data no data 8.22E+03 5.95E+04 no data 9.04E-02 CE-143 2.93E+02 1.93E+02 no data 5.64E+01 1.16E+05 4.97E+04 no data 2.21E+01 PR-143 1.40E+04 5.24E+03 no data 1.97E+03 4.33E+05 3.72E+04 no data 6.99E+02 CE-144 3.19E+06 1.21E+06 no data 5.38E+05 9.84E+06 1.48E+05 no data 1.76E+05 PR-144 4.79E-02 1.85E-02 no data 6.72E-03 1.61E+03 4.28E+03 no data 2.41E-03 ND-147 7.94E+03 8.13E+03 no data 3.15E+03 3.22E+05 3.12E+04 no data 5.00E+02 W-187 1.30E+01 9.02E+00 no data no data 3.96E+04 3.56E+04 no data 3.11E+00 NP-239 3.71E+02 3.32E+01 no data 6.62E+01 5.95E+04 2.49E+04 no data 1.88E+01 U-232 3.60E+08 no data no data 3.36E+07 2.09E+09 6.10E+04 no data 2.98E+007 U-233 7.62E+07 no data no data 1.53E+07 4.98E+08 5.64E+04 no data 5.36E+06 U-234 7.31E+07 no data no data 1.50E+07 4.89E+08 5.53E+04 no data 5.25E+06 U-235 7.01E+07 no data no data 1.41E+07 4.59E+08 7.03E+04 no data 4.93E+06 U-236 7.01E+07 no data no data 1.44E+07 4.69E+08 5.19E+04 no data 5.04E+06 U-237 4.55E+02 no data no data 1.13E+03 1.28E+05 1.83E+04 no data 1.21E+02 U-238 6.71E+07 no data no data 1.32E+07 4.28E+08 4.96E+04 no data 4.61E+06 NP-237 4.03E+09 2.39E+09 no data 1.08E+09 4.89E+08 7.14E+04 no data 1.76E+08 NP-238 3.74E+03 8.47E+02 no data 2.06E+02 1.29E+05 3.61E+04 no data 5.82E+01 PU-238 3.77E+09 2.35E+09 no data 6.50E+08 1.26E+09 6.57E+04 no data 1.78E+08 PU-239 4.10E+09 2.46E+09 no data 6.93E+08 1.19E+09 5.99E+04 no data 1.88E+08 PU-240 4.10E+09 2.45E+09 no data 6.92E+08 1.19E+09 6.10E+04 no data 1.88E+08 PU-241 1.18E+08 2.59E+07 no data 1.61E+07 1.07E+06 1.26E+03 no data 4.35E+06 PU-242 3.81E+09 2.37E+09 no data 6.68E+08 1.14E+09 5.88E+04 no data 1.81E+08 PU-244 4.44E+09 2.72E+09 no data 7.64E+08 1.31E+09 8.76E+04 no data 2.07E+08 AM-241 4.41E+09 2.73E+09 no data 1.11E+09 5.68E+08 6.69E+04 no data 1.83E+08 AM-242M 4.55E+09 2.60E+09 no data 1.12E+09 2.30E+08 8.41E+04 no data 1.89E+08 AM-243 4.34E+09 2.63E+09 no data 1.08E+09 5.39E+08 7.84E+04 no data 1.78E+08 CM-242 1.79E+08 1.21E+08 no data 2.37E+07 4.16E+08 7.14E+04 no data 7.98E+06 CM-243 3.46E+09 2.13E+09 no data 5.47E+08 5.94E+08 7.03E+04 no data 1.48E+08 CM-244 2.90E+09 1.78E+09 no data 4.49E+08 5.71E+08 6.80E+04 no data 1.24E+08 CM-245 4.51E+09 2.74E+09 no data 7.32E+08 5.49E+08 6.34E+04 no data 1.90E+08 CM-246 4.48E+09 2.74E+09 no data 7.32E+08 5.59E+08 6.23E+04 no data 1.90E+08 CM-247 4.35E+09 2.70E+09 no data 7.21E+08 5.49E+08 8.19E+04 no data 1.86E+08 CM-248 3.61E+10 2.23E+10 no data 5.94E+09 4.52E+09 1.32E+06 no data 1.54E+09 CF-252 3.32E+09 no data no data no data 1.92E+09 2.59E+05 no data 1.41E+08

January 2021 Page 38 of 64 Rev. 18 TABLE IV.C.3 Ri CONSTANTS GROUND PLANE PATHWAY (m2 (mrem/yr) per Ci/sec)

AG-110M 3.44E+09 AM-241 6.85E+08 AM-242M 9.61E+07 AM-243 5.03E+09 BA-139 1.06E+05 BA-140 2.05E+07 BA-141 4.18E+04 BA-142 4.49E+04 BR-83 4.87E+03 BR-84 2.03E+05 BR-85 no data C-14 no data CE-141 1.37E+07 CE-143 2.31E+06 CE-144 6.96E+07 CF-252 4.83E+10 CM-242 6.85E+05 CM-243 7.05E+09 CM-244 7.84E+06 CM-245 3.67E+09 CM-246 3.86E+06 CM-247 8.51E+09 CM-248 2.63E+10 CO-58 3.79E+08 CO-60 2.32E+10 CR-51 4.66E+06 CS-134 6.91E+09 CS-136 1.50E+08 CS-137 1.30E+10 CS-138 3.59E+05 CU-64 6.07E+05 FE-55 no data FE-59 2.72E+08 H-3 no data I-130 5.51E+06 I-131 1.73E+07 I-132 1.23E+06 I-133 2.45E+06 I-134 4.46E+05 I-135 2.52E+06 LA-140 1.92E+07 LA-142 7.60E+05 MN-54 1.38E+09 MN-56 9.04E+05 MO-99 3.99E+06

January 2021 Page 39 of 64 Rev. 18 NA-24 1.19E+07 NB-95 1.37E+08 ND-147 8.40E+06 NI-63 no data NI-65 2.97E+05 NP-237 5.42E+09 NP-238 4.53E+06 NP-239 1.71E+06 P-32 no data PR-143 no data PR-144 1.83E+03 PU-238 4.65E+06 PU-239 3.06E+06 PU-240 5.02E+06 PU-241 1.14E+07 PU-242 4.26E+06 PU-244 3.46E+09 RB-86 8.97E+06 RB-88 3.31E+04 RB-89 1.23E+05 RU-103 1.08E+08 RU-105 6.36E+05 RU-106 4.22E+08 SB-124 5.98E+08 SB-125 2.38E+09 SR-89 2.16E+04 SR-90 no data SR-91 2.15E+06 SR-92 7.77E+05 TC-101 2.04E+04 TC-99M 1.84E+05 TE-125M 1.55E+06 TE-127 2.98E+03 TE-127M 9.17E+04 TE-129 2.62E+04 TE-129M 1.98E+07 TE-131 2.92E+04 TE-131M 8.03E+06 TE-132 4.23E+06 U-232 9.12E+06 U-233 8.90E+09 U-234 2.45E+06 U-235 1.24E+10 U-236 8.13E+04 U-237 5.16E+07 U-238 4.26E+08 W-187 2.36E+06 Y-90 4.49E+03 Y-91 1.07E+06 Y-91M 1.00E+05

January 2021 Page 40 of 64 Rev. 18

Y-92 1.80E+05 Y-93 1.83E+05 ZN-65 7.46E+08 ZN-69 no data ZR-95 2.45E+08 ZR-97 2.96E+06

January 2021 Page 41 of 64 Rev. 18

IV.D ODCMS 4.8.C.5.1 The projected doses from releases of gaseous effluents to areas at and beyond the SITE BOUNDARY shall be calculated in accordance with the following sections of this manual:

a.

gamma air dose - IV.B.1

b.

beta air dose - IV.B.2

c.

organ dose

- IV.C The projected dose calculation shall be based on expected release from plant operation. The normal release pathways result in the maximum releases from the plant. Any alternative release pathways result in lower releases and, therefore, lower doses.

IV.E Technical Requirements Manual Test Requirement (TR) 3.5.3 IV.E.1 The recombiner hydrogen analyzers currently used at Peach Bottom are Whittaker Electrochemical type. (Analyzers 4083A and 4083B on Unit 2. Analyzers 5083A and 5083B on Unit 3.)

IV.E.2 The calibration gas is in accordance with approved procedures.

IV.F ODCMS 4.8.C.7.1 and 4.8.C.7.2 IV.F.1 Section Removed.

IV.F.2 Section Removed.

V.A.

ODCMS 4.8.D.1.1 and 4.8.D.1.2 V.A.1 ODCMS 4.8.D.1.1 The total gaseous and liquid cumulative dose contributions are limited by ODCMS 3.8.D.1 to 3.0 mrem for whole body and critical organ, and 55 mrem for the thyroid to preserve assumptions set forth in the 10CFR72.212 report for the spent fuel casks that are stored on the Independent Spent Fuel Storage (ISFSI) pad. Exceeding these action levels does not necessarily result in the overall 40CFR190 or 10CFR72.104 requirements not being met. Further calculations are required to determine compliance.

January 2021 Page 42 of 64 Rev. 18 Whole Body The whole body dose contribution from liquid and gaseous effluents shall be determined by the following method:

DWB D D

where:

DWB = whole body dose from liquid and gaseous effluents, in mrem.

D

= cumulative dose commitment to the total body from liquid effluents, in mrem (Determined by ODCM Section III.B).

D

= gamma air dose, in mrad (Determined by ODCM Section IV.B, with mrad equivalent to mrem).

Critical organ(except thyroid)

The critical organ(except thyroid) dose contribution from liquid and gaseous effluents shall be determined by the following method:

DCO D DD where:

DCO = critical organ(except thyroid) dose from liquid and gaseous effluents, in mrem.

D

= cumulative dose commitment to any organ from liquid effluents, in mrem (Determined by ODCM Section III.B).

D

= gamma air dose, in mrad (Determined by ODCM Section IV.B, with mrad equivalent to mrem).

D

= limiting dose to the critical organ(except thyroid),

in mrem (Determined by ODCM Section IV.C).

January 2021 Page 43 of 64 Rev. 18 D

WB Thyroid The thyroid dose contribution from gaseous effluents shall be determined by the following method:

DThy D DD where:

DThy

= thyroid dose from gaseous effluents, in mrem.

D

= cumulative dose commitment to any organ from liquid effluents, in mrem (Determined by ODCM Section III.B).

D

= gamma air dose, in mrad (Determined by ODCM Section IV.B, with mrad equivalent to mrem).

D

= limiting dose to the thyroid, in mrem (Determined by ODCM Section IV.C).

V.A.2 ODCMS 4.8.D.1.2 The cumulative dose from all sources(i.e. gas and liquid effluents and direct radiation) is calculated by summing the individual doses obtained in ODCMS 4.8.D.1.1 for whole body(

DWB ), critical organ( DCO ) and thyroid( D net dose(mrem).

Whole Body Thy ) with the dosimeter The cumulative whole body dose from liquid, gas and direct radiation shall be determined by the following method:

Total WB DWB D where:

DTotal

= whole body dose equivalent from all sources, in mrem.

DWB

= whole body dose from liquid and gaseous effluents, in mrem.

DD

= Net dose from direct radiation, in mrem.

D

January 2021 Page 44 of 64 Rev. 18 D

CO D

Thy Critical Organ(except thyroid)

The cumulative critical organ(except thyroid) dose from liquid, gas and direct radiation shall be determined by the following method:

Total CO DCO DD where:

DTotal

= critical organ(except thyroid) dose equivalent from all sources, in mrem.

DCO

= critical organ(except thyroid) dose from liquid and gaseous effluents, in mrem.

DD

= Net dose from direct radiation, in mrem.

Thyroid The cumulative thyroid dose from gas and direct radiation shall be determined by the following method:

Total Thy DThy DD where:

DTotal

= thyroid dose equivalent from all sources, in mrem.

DThy

= thyroid dose from gaseous effluents, in mrem.

DD

= Net dose from direct radiation, in mrem.

The dose contribution is calculated at the discharge point for liquids and in the worst sector for gases. If necessary, the dose contribution from liquid and gas may be calculated for a real individual.

January 2021 Page 45 of 64 Rev. 18 VI.A ODCMS 3.10.2.f In accordance with ODCMS 3.10.2.f the Annual Radioactive Effluent Release Report shall include an assessment of radiation dose from radioactive liquid and gaseous effluents to MEMBERS OF THE PUBLIC due to their acitivies inside the SITE BOUNDARY.

There are two locations within the SITE BOUNDARY that are accessible to MEMBERS OF THE PUBLIC for activities unrelated to the operation of Peach Bottom Atomic Power Station. These locations are the Emergency Response Location 800 ft ENE from the vents and the Warehouse Checkpoint 900 ft NNE from the vents.

Annual doses will be calculated in accordance with methodology described in ODCM IV.B and IV.C, assuming inhalation pathway, plume and ground shine doses are the dominate pathway. Continuous occupancy with current year MET data shall also be used. The maximum dose calculated will be reported in the Annual Radioactive Effluent Release Report.

VII.A ODCMS 4.8.E.1.1 and 4.8.E.1.2 The radiological environment monitoring samples shall be collected pursuant to Table VII.A.1 from the locations shown on Figures VII.A.1, VII.A.2, and VII.A.3, and shall be analyzed pursuant to the requirements of Table VII.A.1.

Page 46 of 64 Rev. 18 TABLE VII.A-1 ODCM - Peach Bottom Atomic Power Station Radiological Environmental Monitoring Program January 2021

Pathway Station Distance and Direction Collection Method Analyses

Code from PBAPS Vents and Discussion

I.

Direct Radiation Site Boundary 1L 1,100 feet NE of site 1 set of two (2)

Gamma Dose quarterly

1A 1,500 feet SE of site Dosimeters from each

2 4,700 feet SE of site location at least

1I 2,900 feet SSE of site quarterly

1C 4,700 feet SSE of site Gamma dose quarterly

1J 4,000 feet S of site

1F 2,900 feet SSW of site

40 8,000 feet SW of site Dosimeter sites were

1NN 2,700 feet WSW of site chosen in accordance

1H 3,200 feet W of site with Peach Bottom

1G 3,100 feet WNW of site ODCMS Table 4.8.E.1

1B 2,500 feet NW of site Item 1. Site Boundary

1E 3,000 feet NNW of site stations all sectors

1K 4,700 feet SW of site except several along Intermediate Distance 1P 2,200 feet ESE of site 15 19,300 feet N of site 22 12,500 feet NNE of site 44 26,700 feet NE of site 32 14,400 feet ENE of site 45 18,500 feet ENE of site 14 10,300 feet E of site 17 21,500 feet ESE of site 31A 24,100 feet SE of site 4K 45,900 feet SE of site 23 5,500 feet SSE of site 27 14,400 feet S of site 48 26,500 feet SSW of site Conowingo Pond.

Thes e sectors are monitored by stations on the east side of Conowingo Pond. The 5 mile vicinity stations cover all sectors.

The distant and special interest stations provide information in populations.

Page 47 of 64 Rev. 18 TABLE VII.A-1 ODCM - Peach Bottom Atomic Power Station Radiological Environmental Monitoring Program January 2021 Pathway Station Distance and Direction Collection Method Analyses Code from PBAPS Vents and Discussion 3A 19,300 feet SW of site 49 21,500 feet WSW of site 50 26,400 feet W of site 51 21,000 feet WNW of site 26 21,800 feet NW of site 6B 30,400 feet NW of site 42 21,600 feet NNW of site Distant and Special Interest 43 26,200 feet NNE of site 5

24,400 feet E of site 16 67,100 feet E of site 24 58,200 feet ESE of site 2B 3,900 feet SSE of site 46 23,800 feet SSE of site 47 22,700 feet S of site 18 52,200 feet W of site 19 C 124,000 feet WNW of site 1T 3,100 feet WNW of site II.

Airborne Particulates 1Z 1,500 feet SE of site Approximately 1 cfm Gross beta analysis 1B 2,500 feet NW of site continuous flow on each weekly 1C 4,700 feet SSE of site through glass fiber sample. Gamma 3A 19,300 feet SW of site filter which is spectrometry shall be 5H2 C 162,400 feet NE of site collected weekly.

done when gross beta exceeds ten times the These stations yearly mean of provide for coverage control station value.

Page 48 of 64 Rev. 18 TABLE VII.A-1 ODCM - Peach Bottom Atomic Power Station Radiological Environmental Monitoring Program January 2021

Pathway Station Distance and Direction Collection Method Analyses

Code from PBAPS Vents and Discussion

of the highest annual average ground level D/Q near the site boundary, the community with the highest annual average D/Q and a control location.

Gross beta analysis done 24 hr after sampling to allow for Radon and Thoron daughter decay.

Gamma Spec on quarterly composite by location.

Iodine 1Z 1,500 feet SE of site 1B 2,500 feet NW of site 1C 4,700 feet SSE of site 3A 19,300 feet SW of site 5H2 C 162,400 feet NE of site A TEDA impregnated flow-through cartridge is connected to air sampler and is collected weekly at site filter change.

Iodine 131 weekly III.

Waterborne Surface 1LL C 1,200 feet ENE of site 1MM 5,500 feet SE of site Sample collected from a continuous water sampler, monthly. In event Gamma isotopic analysis monthly; H-3 on quarterly

Page 49 of 64 Rev. 18 TABLE VII.A-1 ODCM - Peach Bottom Atomic Power Station Radiological Environmental Monitoring Program January 2021 Pathway Station Distance and Direction Collection Method Analyses Code from PBAPS Vents and Discussion sampler is inoperable, grab samples will be collected each calendar day until sampler returned to service.

composite Drinking 4L 45,900 feet SE of site 6I C 30,500 feet NW of site 13B 13,300 feet ESE of site Sample collected from a continuous water sampler monthly. In event sampler is inoperable, weekly grab samples will be collected until sampler returned to service.

Gross beta and gamma isotopic monthly, H-3 on quarterly composite Sediment 4J 7,400 feet SE of site A sediment sample is taken down stream of discharge semi-annually.

Gamma isotopic analysis each sample IV.

Ingestion Milk V C 32,600 feet W of site J

5,100 feet W of site R

4,900 feet SW of site S

19,100 feet SE of site X

9,200 feet NW of site Sample of fresh milk is collected from each farm biweekly when cows are on pasture I-131 analyses on each sample Gamma isotopic analysis or Cs-134, Cs-137 by

Page 50 of 64 Rev. 18 TABLE VII.A-1 ODCM - Peach Bottom Atomic Power Station Radiological Environmental Monitoring Program January 2021 Pathway Station Distance and Direction Collection Method Analyses Code from PBAPS Vents and Discussion (April through October), monthly at other times.

chemical separation quarterly Fish 4

6,000-10,000 feet SE of site 6 C 50,000-70,000 feet NNW of site Two species of recreationally important fish (predator and bottom feeder) sampled in season or semiannually if not seasonal.

Gamma isotopic analyses on edible portions.

Food Products 1C 4,700 feet SSE of site 55 C 51,900 feet NE of site Samples of three (3) different kinds of broad leaf vegetation monthly when available if milk sampling is not performed Gamma isotopic and I-131 analysis C = Control Location

Page 51 of 64 Rev. 18 January 2021 FIGURE VII.A.1 ENVIRONMENTAL SAMPLING STATIONS AT SITE BOUNDARY AREA TO PEACH BOTTOM MtJoMS\\n Island w

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NORMANDEAU ASSOCIATES Date:

2/4/2019 Revised:

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Miles 400 Old Reading Pike Bldg A Suite 101 Stowe, PA 19464

Date:1/6/2021 Revise d:

Service Layer Credits: Sources: Esri, HERE, Garmin, Intermap, increment P Corp., GEBCO, USGS, FAO, NPS, NRCAN, GeoBase, IGN, Kadaster NL, Ordnance Survey, Esri Japan, METI, Esri China (Hong Kong), (c) OpenStreetMap contributors, and the GIS User Community REMP Stations between 1 and 5 Miles of Peach Bottom Atomic Power Station 2021 FIGURE VII.A.3 ENVIRONMENTAL SAMPLING STATIONS AT Intermediate Distances PEACH BOTTOM Site Page 52 of 64 Rev. 18 e sville

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NORMANDEAU ASSOCIATES

January 2021 Page 53 of 64 Rev. 18 FIGURE VII.A.3 ENVIRONMENTAL SAMPLING STATIONS AT REMOTE DISTANCES FROM PEACH BOTTOM SITE N t Gl) o1 0-'111 U1lb H<<~ h,r,f

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lu-, 1n

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l5H2(control)I Ex*

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_ [)oo.vnir,JI' l hcrnJ,A,.,

REMP Stations over 5 Miles from Peach Bottom Atomic Power Station 2015

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January 2021 Figure 1 Page 54 of 64 Rev. 18 GUARD BED FROM MAIN CONDENSER C UNIT 2)

RECOMBINER USED ONLY WATER DURING --~1

(~, SEPARATOR START-UP 1

1 1 TANK I

l-------7 L ___.L..,. r I

I I

~=~

I J I

MACHAN I CAL

~J VACUUM PUMP FROM TURB STEAM SEALS CUNIT 2l CONDENSATE DRAIN TANK I

f STEAM PACKING EXHAUSTER BLOWER (2)

STEAM PACKING EXHAUSTER PECO ENERGY COMPANY PBAPS UNITS 2 L 3 MAIN ADSORBER BED SAMPLE PROBES FROM MAIN BED UNIT 3 1

ADSORBER 10FF GAS

,----~FILTERS MAIN OFF - GAS STACK OUTSIDE---------,~~

AIR MAIN STACK DILUTION FANS (3)

OFFGAS RADWASTE TREATMENT SYSTEM (DW131. ND.

ICIDCM-2t NORMAL RANGE MONITOR

PARTICULATE

IODINE

. NOBLE GAS WIDE RANGE MONITOR

. PARTICULATE

IODINE

NOBLE GAS FROM MVP AND STEAM PACKING EXHAUSTER (UNIT 3)

Page 55 of 64 Rev. 18 January 2021 Figure 2 FUME HOOD EXHAUST LAB & TOILET EX HAUST CHEM LAB EXHAUST TURBINE BLDG OPERATING FLOOR EX HAUST TURBINE BLDG EQUIP CELL EX HAUST TURBINE BLD G AREA EX HAU ST REACTOR BLDG EQUIP CELL EXHAUST REACTOR BLDG EXHAUST REFUELING FLOOR EX HAUST RADWASTE AREA EX HAU ST RADWASTE BLDG EQUIP CE LL EX HAUST FILTER

~

.. ~(2)

EXHAUST FAN ill(2) ill(2) ill (3)

~(2)

~(3)

FE

~

0

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,(j)

I-z w N

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(.? z 0

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NORMAL RANGE MONITOR (2AS185)

- PARTICULATE

- IODINE

- NOBLE GAS WIDE RANGE MONITOR (205845/205846)

(265185)

- PARTICULATE

- IODINE

- NOBLE GAS EXELON NUCLEAR PBAPS UNIT2 VENTILATION EXHAUST WASTE TREATMENT SYSTEM

Page 56 of 64 Rev. 18 January 2021 Figure 3 PEARL BLD G FUME HOOD EXHAUST PEARL BLD G EX HAUST TURBINE BLDG OPERATING FLOOR EX HAUST TURBINE BLDG EQUIP CELL EX HAUST TURBINE BLD G AREA EX HAU ST REACTOR BLDG EQUIP CELL EXHAUST REACTOR BLDG EXHAUST REFUELING FLOOR EX HAUST RECOMBINER BLDG EX HAUST RECOMBINER BLDG EQUIP CELL EX HAUST FILTER

~(2)

.. ~(2)

EXHAUST FAN ill(2) ill(2) ill (3)

~(2)

~(3)

~

0

<(

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,(j)

I-z w C'0 I--z

J

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NORMAL RANGE MONITOR (3AS185)

- PARTICULATE

- IODINE

- NOBLE GAS WIDE RANGE MONITOR (305845/305846)

(365185)

- PARTICULATE

- IODINE

- NOBLE GAS EXELON NUCLEAR PBAPS UNIT3 VENTILATION EXHAUST WASTE TREATMENT SYSTEM

Page 57 of 64 Rev. 18 January 2021 Figure 4 WASTE COLLECTION ~,*

TANK I ~

CHEMICAL DRAINS J

FLOOR DRAIN SURGE TANK 7

FLOOR DRAIN COLLECTION TANK

<Il PUMP

-)

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WASTE SURGE TANK SERVICE WATER WASTE FILTER FLOOR DRAIN FILTER EMERGENCY SERVICE WATER H

0 0

HIGH PRESSURE SERVICE WATER WASTE DEMIN.

FLOOR DRAIN DEMIN. I (OUTLET OF RBCCW)

(OUTLET OF RHR)

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Page 58 of 64 Rev. 18 January 2021 VIII.

Bases Liquid Effluent Release Flow Rate Determination Non-gamma emitting radionuclides (H-3, Fe-55, Sr-89/90) are not detected by the effluent monitor and, therefore, are not directly included in the release flow rate determination.

While tritium accounts for nearly all the activity released, it is not a significant contributor when determining the permissible flow rate. Examining releases over the years 2004

- 2006, the average diluted H-3 contribution to its limiting concentration in liquid effluents was 0.03%. This contribution is not expected to change significantly over time, since the concentration of H-3 in effluents can be expected to remain fairly consistent in effluent releases regardless of fuel conditions, activation product releases, and waste processing.

Based on relative abundances, other non-gamma emitting radionuclides only contributed up to nearly 3 % of the concentration limit. It is reasonable to assume that the abundances of these non-gamma will remain the same relative to other fission and/or activation products under varying conditions. Therefore, under conditions of elevated effluent radionuclide levels, the gamma-emitting radionuclides can be expected to be the main contributors to limiting conditions on liquid effluent concentrations. The maximum permissible release flow rate determination methodology presented in III.A offers an additional factor of conservatism of 30 to 50 which is more than adequate to account for the non-gamma emitting radionuclides.

Site Specific Data AiU w Dw UF xBFi k0 xDF xRCxe24i NOTE 1 Liquid dose factors, Ai, for section III.B were developed using the following site specific data. The liquid pathways involved are drinking water and fish.

Page 59 of 64 Rev. 18 January 2021 i

Uw

=

liters per year; maximum age group usage of drinking water (Reg. Guide 1.109, Table E-

5)

Dw

=

5.4; average annual dilution at Conowingo intake U F

=

kg per year; maximum age group usage of fish (Reg. Guide 1.109, Table E-5)

BFi

=

bioaccumulation factor for nuclide, i, in freshwater fish.

Reg. Guide 1.109, Table A-1, except P-32 which uses a value of 3.0 x 103 pCi/kg per pCi/liter.

k0

=

1.14 x 105 = (106 pCi/Ci x 103 ml/1 )/ 8760 hr/yr) units conversion factor.

DFi

=

dose conversion factor for nuclide, i, for the age group in total body or organ, as applicable.

Reg. Guide 1.109, Table E-11, except P-32 bone which uses a value as indicated below.

3.0 x 10-5 mrem/pCi RC

=

1.16; reconcentration from PBAPS discharge back through PBAPS intake.

i

=

decay constant for nuclide i, hr-1 The data for DW and RC were derived from data published in Peach Bottom Atomic Power Station Units 2 and 3 (Docket Nos. 50-277 and 50-278) Radioactive Effluent Dose Assessment, Enclosure A, September 30, 1976. All other data except P-32 BF and DF were used as given in Reg. Guide 1.109, Revision 1, October 1977. The P-32 BF and DF were used in accordance with information supplied in Branagan, E.F., Nichols, C.R., and Willis, C.A., "The Importance of P-32 in Nuclear Reactor Liquid Effluents", NRC, 6/82.

The teen and child dose factors were derived by the ratio of the adult bone dose factors in Reg.

Guide 1.109 and Branagan, et al.

I

Page 60 of 64 Rev. 18 January 2021 Q U RC D / QK' F

ap F

rDFL f p f s 1 f p f s e

i th

e i t f i

where:

i W m

i Y Y

p s

K'

=

106 pCi/Ci; unit conversion factor QF

Uap

=

50 kg/day; cow's consumption rate

330 1/yr; yearly milk consumption by an infant i

=

radioactive decay constant for nuclide of interest, sec-1 (e.g. 9.97 x 10-7 sec-1 for I-131)

W

=

5.73 x 10-7 sec-1; decay constant for removal of activity in leaf and plant surfaces Fm

=

stable element transfer coefficient for nuclide of interest, day/liter (e.g. 6.0 x 10-3 day/liter for I-131) r

=

fraction of deposited nuclide retained in cow's feed grass, 1.0 for radioiodine; 0.2 for particulates DFLi =

ingestion dose factor in infant for nuclide of interest, mrem/pCi (e.g. 1.39 x 10-2 mrem/pCi for I-131) f p

=

0.6; the fraction of the year the cow is on f s

=

pasture (average of 0.487; the fraction all farms) of cow feed that is pasture grass while the cow is on pasture (average of all farms)

Yp

=

0.7 kg/m2; the agricultural productivity of pasture feed grass Ys

=

2.0 kg/m2; the agricultural productivity of stored feed NOTE 2 To develop constant R for the ingestion pathway in section IV.C, the following site specific data were used:

January 2021 Page 61 of 64 Rev. 18 R

K C

t f

=

1.73 x 105 sec (2 days); the transport time from pasture, to cow, to milk, to receptor th

=

7.78 x 106 sec (90 days); the transport time from pasture, to harvest, to cow, to milk, to receptor The concentration of tritium in milk is based on the airborne concentration rather than the deposition. The following additional constants and formula are used:

H 3 QK 'K '"Fm QFUap DFLi 0.750.5 / H

where:

K ' "

=

103 gm/kg; a constant of unit conversion H

=

14.61 gm/m3; absolute humidity of the atmosphere 0.75

=

the fraction of total feed that is water 0.5

=

the ratio of the specific activity of the feed grass water to the atmospheric water Milk C 14 K '" p Fm QF Uap DFLC 14 0.11/ 0.16

where:

p

=

the ratio of the total annual release time (for C-14 atmospheric releases) to the total annual time during photosynthesis occurs.

0.11 =

the fraction of total plant mass that is natural carbon.

0.16 =

the concentration of natural carbon in the atmosphere, in g/m3.

NOTE 4 To develop constant R for C-14 for the ingestion pathway in section IV.C, the following site specific data were used:

NOTE 3 To develop constant R for tritium for the ingestion pathway in section IV.C, the following site specific data were used:

R I

January 2021 Page 62 of 64 Rev. 18 The pathway is the grass-cow-milk ingestion pathway.

These data were derived from data published in Peach Bottom Atomic Power Station Units 2 and 3 (Docket Nos.

50-277 and 50-278) Radioactive Effluent Dose Assessment, Enclosure A, September 30, 1976. All other data were used as given in Reg. Guide 1.109, Revision 1, October 1977.

ODCMS 4.8.B.2.1, Liquid Pathway Dose Calculations The equations for calculating the doses due to the actual release rates of radioactive materials in liquid effluents were developed from the methodology provided in Regulatory Guide 1.109, "Calculation of Annual Doses to Man from Routine Releases of Reactor Effluents for the Purpose of Evaluating Compliance with 10 CFR Part 50, Appendix I", Revision 1, October 1977 and NUREG-0133 "Preparation of Radiological Effluent Technical Specifications for Nuclear Power Plants", October 1978.

ODCMS 4.8.C.1.1 and 4.8.C.1.2 Dose Rate Noble Gases The equations for calculating the dose rate due to the actual release rates of radioactive noble gases in gaseous effluents were developed from the methodology provided in Regulatory Guide 1.109, "Calculation of Annual Doses to Man from Routine Releases of Reactor Effluents for the Purpose of Evaluating Compliance with 10 CFR Part 50, Appendix I", Revision 1, October 1977, NUREG-0133 "Preparation of Radiological Effluent Technical Specifications for Nuclear Power Plants", August 1978, and the atmospheric dispersion model presented in Information Requested in Enclosure 2 to letter from George Lear to E. G. Bauer dated February 17, 1976, September 30, 1976.

The specified equations provide for determining the dose rates in areas at and beyond the SITE BOUNDARY based upon the historical average atmospheric conditions.

The dose rate due to noble gas release as calculated by the Gross Release Method is much more conservative than the dose calculated by the Isotopic Analysis Method.

Assuming the release rates given in Radioactive Effluent Dose Assessment, September 30, 1976, the values calculated by the Gross Release Method for total body dose rate and skin dose rate are 6.0 times and 5.7 times, respectively, the values calculated by the Isotopic Analysis Method.

January 2020 Page 63 of 64 Rev. 18 Dose Rate I-131, I-133, Tritium and Radioactive Material in Particulate Form.

The model Technical Specification LCO of NUREG-0133 for all radionuclides and radioactive materials in particulate form and radionuclides other than noble gases requires that the instantaneous dose rate be less than the equivalent of 1500 mrem per year.

The release data from 1994 to 1996 were evaluated and the critical organs were determined to be the child thyroid or teenager lung. The child thyroid dose rate is limiting when iodine releases exceed 10 percent of the total release rates. The teenager lung dose rate is limiting when iodine is either not present or a small fraction of the total release.

Because of good fuel performance the amount of I-131 released has decreased. The thyroid may not be the critical organ. When it is not clear which organ dose is limiting, doses for the child thyroid and teenage lung are calculated.

ODCMS 4.8.C.2.1 Dose Noble Gases The equations for calculating the doses due to the actual release rates of radioactive noble gases in gaseous effluents were developed from the methodology provided in Regulatory Guide 1.109, "Calculation of Annual Doses to Man from Routine Releases of Reactor Effluents for the Purpose of Evaluating Compliance with 10 CFR Part 50, Appendix I", Revision 1, October 1977, NUREG-0133 "Preparation of Radiological Effluent Technical Specifications for Nuclear Power Plants", August 1978, and the atmospheric dispersion model presented in Information Requested in Enclosure 2 to letter from George Lear to E. G. Bauer dated February 17, 1976, September 30, 1976.

The specified equations provide for determining the air doses in areas at and beyond the SITE BOUNDARY based upon the historical average atmospheric conditions.

January 2020 Page 64 of 64 Rev. 18 The dose due to noble gas releases as calculated by the Gross Release Method is much more conservative than the dose calculated by the Isotopic Analysis Method.

Assuming the releases rates given in Radioactive Effluent Dose Assessment, September 30, 1976, the values calculated by the Gross Release Method for total body dose rate and skin dose rate are 4.3 times and 7.2 times, respectively, the values calculated by the Isotopic Analysis Method.

ODCMS 4.8.C.3.1 Dose, Iodine-131, Iodine-133, Tritium, and Radioactive Material in Particulate Form The equation for calculating the doses due to the actual release of radioiodines, radioactive material in particulate form, and radionuclides other than noble gases with half-lives greater than 8 days were developed using the methodology provided in Regulatory Guide 1.109, "Calculation of Annual Doses to Man from Routine Releases of Reactor Effluents for the Purpose of Evaluating Compliance with 10 CFR Part 50, Appendix I", Revision 1, October 1977, NUREG-0133, "Preparation of Radiological Effluent Technical Specifications for Nuclear Power Plants", October 1978, and the atmospheric dispersion model presented in Information Requested in Enclosure 2 to Letter from George Lear to E. G. Bauer dated February 17, 1976, September 30, 1976.

These equations provide for determining the actual doses based upon the historical average atmospheric conditions.

Compliance with the 10 CFR 50 limits for radioiodines, radioactive materials in particulate form and radionuclides other than noble gases with half lives greater than eight days is to be determined by calculating the infant thyroid, infant liver and infant bone dose. These organs were determined to be the critical organs based on the release data from 1994 to 1996.

Because of a decrease in the amount of I-131 released, the thyroid may not be the critical organ. The isotopic analysis method is used to calculate dose to the infant thyroid, infant liver and infant bone.

ML22112A105

Text

Subject:

SUMMARY

SUMMARY

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