ML18116A324

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Annual Radioactive Effluent Release Report 60: January 1, 2017 Through December 31, 2017
ML18116A324
Person / Time
Site: Peach Bottom  Constellation icon.png
Issue date: 04/26/2018
From: Herr M
Exelon Generation Co
To:
Document Control Desk, Office of Nuclear Material Safety and Safeguards, Office of Nuclear Reactor Regulation
References
Download: ML18116A324 (157)
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Text

Exelon Generation April 26, 2018 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 60 January 1, 2017 through December 31, 2017 Enclosed is the Annual Radioactive Effluent Release Report 60, January 1, 2017 through December 31, 2017 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 during the 2017 reporting period. There are no commitments contained in this letter.

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

Sincerely, Matthew J. Herr, Plant Manager Peach Bottom Atomic Power Station MJH/SMO/GRS/ASD/asd Enclosure (1) cc: USN RC Region I, Regional Administrator (Daniel H. Dorman)

USN RC Senior Resident Inspector, PBAPS (Justin Heinly)

USNRC Region I Inspector (James R. Cassata)

CCN 18-28

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 N0.60 JANUARY 1, 2017 THROUGH DECEMBER 31, 2017 Submitted to The United States Nuclear Regulatory Commission Pursuant to Facility Operating Licenses DPR-44 and DPR-56

Peach Bottom Atomic Power Station Licensee: Exelon Generation Company, LLC Unit 2 and 3 PSEG Nuclear, LLC (This page intentionally left blank) 2

Peach Bottom Atomic Power Station Licensee: Exelon Generation Company, LLC Unit 2 and 3 PSEG Nuclear, LLC TABLE OF CONTENTS INTRODUCTION ...................................................................................................................................... 4 ATIACHMENT 1: SUPPLEMENTAL INFORMATION ................................................................................. 6 Regulatory Limits ...................................................................................................................... 7 Maximum Permissible Concentrations ..................................................................................... 7 Average Energy ......................................................................................................................... 8 Measures and Approximations of Total Radioactivity .............................................................. 8 Batch Releases ........................................................................................................................ 10 Average Stream Flow .............................................................................................................. 10 Abnormal or Unplanned Releases .......................................................................................... 11 Changes to the ODCM ............................................................................................................ 12 Minimum Detectable Concentrations ..................................................................................... 12 Violations ................................................................................................................................ 12 Dose Assessment .................................................................................................................... 13 ATIACHMENT 2: EFFLUENT

SUMMARY

............................................................................................... 16 Gaseous Effluents - Summation of All Releases ...................................................................... 17 Gaseous Effluents Release Point: Elevated (Main Offgas Stack) ............................................. 18 Gaseous Effluents Release Point: Ground-Level (Units 2 and 3 Reactor Building Exhaust Vents and Abnormal Releases) ............................................................................................... 19 Liquid Effluents -Summation of All Releases .......................................................................... 20 Liquid Effluents Release Points - Liquid Radwaste, RHR Leaks and Groundwater ................. 21 ATIACHMENT 3: SOLID WASTE AND IRRADIATED FUEL SHIPMENTS .................................................. 22 Solid Waste Shipped ............................................................................................................... 23 Irradiated Fuel Shipments ....................................................................................................... 25 Changes to Process Control Program (PCP) ............................................................................ 25 ATIACHMENT 4: RADIOLOGICAL IMPACT ON MAN ..................................................................... ....... 26 Radiological Impact on Man ................................................................................................... 27 40 CFR 190 Doses ........................................................................................................ ............ 27 ATIACHMENT 5: METEOROLOGICAL DATA .................................................................................... ..... 28 APPENDIX A: ERRATA DATA SECTION .................................................................................................. 85 2016 Dose Assessment (Total Organ Dose) ....... ..................................................................... 86 APPENDIX B: ODCM REVISION ............................................................................................................. 87 ODCM Rev 16 Summary ......................................................................................................... 88 2017 ARERR Dose Updated for ODCM Rev 16 Methodologies .............................................. 88 Technical Concurrence (for accuracy of information):

Date 3

Peach Bottom Atomic Power Station Licensee: Exelon Generation Company, LLC Unit 2 and 3 PSEG Nuclear, LLC INTRODUCTION In accordance with the Reporting Requirements of Technical Specification 5.6.3 applicable during the reporting period, January 1, 2017 through December 31, 2017, 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.

There were two (2) abnormal releases of liquid radioactive material. One release was from Residual Heat Removal (RHR) heat exchanger (beginning July of 2016) and the other is from groundwater tritium contamination ('tritium plume'). These releases were far below regulatory limits.

There were no abnormal releases of gaseous radioactive material during 2017.

The maximum calculated organ dose (bone) from iodines (I-131, I-133 and I-135), tritium (H-3),

carbon-14 (C-14) and particulates to any individual due to all gaseous effluents was 5.90E-01 mrem, which was approximately 1.97E+00% of the annual limit. The maximum calculated air dose in the unrestricted area due to noble gas effluents was 2.21E-01 mrad (gamma) and 1.51E-01 mrad (beta), which was 1.11E+00% and 3.81E-01%, respectively, of the annual limits.

In 2017, there were no direct gaseous or liquid releases or discharges from Unit 1 to the environment. Previously drummed up tritiated water from Unit 1 was released through the Unit 2 and Unit 3 Liquid Radwaste 'B' Laundry Drain Tank system.

There were no gaseous or liquid radioactive releases from the Independent Spent Fuel Storage Installation, NRC Docket No. 72-29 (ISFSI).

There was a revision to RW-AA-100 "Process Control Program for Radioactive Waste" during the 2017 reporting period. This revision was editorial in nature.

There was a revision of the ODCM during the 2017 reporting period but not to Appendix A of the ODCM. More detail regarding the revision can be found in Attachment 1 and Appendix B of this report.

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Peach Bottom Atomic Power Station Licensee: Exelon Generation Company, LLC Unit 2 and 3 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 5

Peach Bottom Atomic Power Station Licensee: Exelon Generation Company, LLC Unit 2 and 3 PSEG Nuclear, LLC ATTACHMENT 1: SUPPLEMENTAL INFORMATION 6

Peach Bottom Atomic Power Station Licensee: Exelon Generation Company, LLC Unit 2 and 3 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.1.a 3000 mrem/ yr annual skin dose rate ODCM Specification 3.8.C.1.a 10 mrad gamma radiation 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 ODCM Specification 3.8.C.2.d Table 2. Iodines, Tritium and Particulates (with half-lives >8 days) Dose Rate and Dose Limits Maximum Value Units Limit Classification Specification 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 ODCM 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 Column 2 total activity concentration for all dissolved and 2E-04 µCi/mL ODCM Specification 3.8.B.1.b entrained noble gases 3.0 mrem total body dose limit per quarter ODCM Specification 3.8.B.2.a 10 mrem total body dose limit per year ODCM Specification 3.8.B.2.a 6.0 mrem dose limit per quarter to any organ 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.1.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.1.

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

µCi/mL (ODCMS 3.8.B.1.b).

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Peach Bottom Atomic Power Station Licensee: Exelon Generation Company, LLC Unit 2 and 3 PSEG Nuclear, LLC Average Energy 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.

Measures and Approximations of Total Radioactivity Fission and Activation Gases The method used for gamma isotopic analysis is the Canberra GenieTM 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, 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.B and 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 GenieTM System with a charcoal cartridge. Iodine activity was continuously sampled and analyzed in accordance with ODCMS Table 4.8.C.1.

Particulates The method used is the Canberra GenieTM 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 NUREG 0133, "Preparation of Radiological Effluent Technical Specifications for Nuclear Power Plants: A Guidance Manual for Users of Standard Technical Specifications," October 1978.

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Peach Bottom Atomic Power Station Licensee: Exelon Generation Company, LLC Unit 2 and 3 PSEG Nuclear, LLC Carbon-14 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. The resulting annual dose to the maximum conservative receptor is 5.90E-01 mrem, with the limiting receptor as the child bone.

Liquid Effluents Gamma isotopic activity concentrations are determined on each batch of liquid effluent prior to release using the Canberra GenieTM 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.

Decommissioned Unit 1 Liquid Radioactive Waste Processing There were no direct gaseous or liquid releases or discharges from Unit 1 to the environment during 2017. However, during the reporting period, a total of 532.7 gallons of water with low concentrations of H-3 were collected from Unit 1 and stored at Unit 2 and 3, for further processing. No gamma emitting nuclides were identified above detectable limits. Also during the reporting period, two separate releases of tritiated water, which originated from Unit 1, were processed through the Unit 2 and Unit 3 liquid radwaste system. A total of 804.7 gallons of tritiated water collected from Unit 1, between 2015 and 2017, were released. The first release of Unit 1 water contained 34 gallons of water collected in 2015, 238 gallons of water collected in 2016, and 103.7 gallons of water collected in 2017. The average H-3 concentration of the released water was 2.58E-03 µCi/mL, producing an estimated dose of 3.00E-08 mrem. The second release of Unit 1 water contained 429 gallons of water collected in 2017, with an average tritium concentration of 5.65E-04 µCi/mL which produced an estimated dose of 1.02E-08 mrem.

The annual dose to the child total body and max organ (all organs but bone are equal) due to Unit 1 releases is 4.02E-8 mrem which is 4.02E-07% of the total body dose limit and 2.01E-7% of the maximum organ dose limit.

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.

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Peach Bottom Atomic Power Station Licensee: Exelon Generation Company, LLC Unit 2 and 3 PSEG Nuclear, LLC Batch Releases Table 4. Quarterly Liquid Batch Release Statistics First Quarter Second Quarter Third Quarter Fourth Quarter Number of Batch 6 0 7 17 Releases Total Time for Batch 4.25E+02 0 5.87E+02 9.61E+02 Releases (minutes)

Maximum time period for batch release 9.50E+01 0 1.30E+02 1.60E+02 (minutes)

Average time period for batch release 6.60E+01 0 6.55E+01 6.35E+01 (minutes)

Minimum time period for batch release 7.08E+01 0 8.39E+01 5.65E+01 (minutes)

Average Stream Flow 3 23 1.60E+05 2.02E+05 6.37E+04 4.70E+04 (ft / s) ,

Dilution volume 1.93E+09 0 2.67E+09 1.92E+10 (liters)

Table 5. Quarterly Gaseous Batch Release Statistics First Quarter Second Quarter Third Quarter Fourth Quarter Number of batch 0 0 0 0 releases:

Total Time for batch 0 0 0 0 releases (minutes)

Maximum time period 0 0 0 0 for batch release (minutes)

Average time period 0 0 0 0 for batch release (minutes)

Minimum time period 0 0 0 0 for batch release (minutes)

Average Stream Flow 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. Dec 2017 data unavailable, 4th quarter average only Oct and Nov 3

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

01576000. Data accessed 27 February 2018.

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Peach Bottom Atomic Power Station Licensee: Exelon Generation Company, LLC Unit 2 and 3 PSEG Nuclear, LLC Abnormal or Unplanned Releases

'Abnormal' releases are those releases that are not defined as 'normal' releases in the Licensee's ODCM. While attempts are made to ensure radioactivity is not released offsite without processing, monitoring of systems with a potential for release is continuously performed. 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 2017, 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 measured4 that ground water flowed to the discharge canal at a steady rate of 3.17E+02 gpm, carrying with it some of the tritium underneath the plant. The conservative maximum dose for the entire year from this continuous release is calculated to be 5.56E-05 mrem (to the whole-body) and 5.56E-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.

Heat Exchanger Leakage In July of 2016, a small leak developed in the Unit 3 'C' Residual Heat Removal (RHR) Heat Exchanger, which is designed to circulate water to remove heat from the reactor unit when necessary. The dose model assumes that contaminated tours water leaks from the heat exchanger, regardless of operating pressure to ensure conservatism in calculated dose. As an additional precaution, installed radiation monitoring instrumentation can indicate an inadvertent release of radioactive material should the heat exchanger develop a large leak unexpectedly.

4 "Estimated Mass Flux Of Tritiated Groundwater To The Conowingo Reservoir And Rock Run Creek, Peach Bottom Atomic Power Station, Delta, Pennsylvania", November 2012, 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.

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Peach Bottom Atomic Power Station Licensee: Exelon Generation Company, LLC Unit 2 and 3 PSEG Nuclear, LLC Analysis of Release It was assumed that the torus water released to the discharge canal, during 2017, contributed a conservative maximum dose of 5.01E-05 mrem to the total body (receptor adult), and a conservative maximum organ dose of 1.17E-04 mrem to the adult GI-LLI, dose. This dose contribution is well below the limits specified in the ODCM.

Samples were analyzed for all the parameters of radioactive effluent releases. Composite liquid torus water samples were counted for tritium and submitted to an offsite vendor laboratory for analyses of Fe-55, P-32, Sr-89, Sr-90, Ni-63 and gross alpha. The dose contributions and isotope quantities from the releases were added to this Radioactive Effluent Release Report for the applicable reporting periods.

Gaseous Releases There were no gaseous abnormal releases during 2017.

Changes to the ODCM There was a revision the ODCM, but not the ODCM Specifications (Appendix A) during 2017.

ODCM Revision 16 implemented changes to meteorological (MET) factors and the equation used to determine dose for the max receptor due to radioiodine, tritium, carbon-14, and particulates.

The equation in ODCM Section IV.C. was updated to reflect the same equation definition in NUREG 0133. Some liquid dose factors were updated for radionuclides not commonly found in liquid radwaste. Additionally, the ODCM REMP portion was updated for some station coordinates or distances, a milk farm replaced a garden, and the number of required dosimeters at each location was changed. Revision 16 of the ODCM was implemented on 12/29/2017 to allow for sufficient time to implement the numerous procedure revisions needed to implement the new ODCM revision, but for the purposes of this report the doses reported are following ODCM Rev 15 methodology. There will be a more detailed discussion of the 2017 ARERR dose reported with ODCM Rev 16 methodology in Appendix B.

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) as 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.

Violations There were no effluent release violations for the 2017 reporting period.

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Peach Bottom Atomic Power Station Licensee: Exelon Generation Company, LLC Unit 2 and 3 PSEG Nuclear, LLC Dose Assessment Introduction A dose assessment for PBAPS was conducted with the measured cumulative 2017 radioactive effluent source terms, provided in Attachment 2, "Effluent Summary," and the 2017 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 I.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 2017, the annual average river flow8 was measured as 4.73E+05 ft3/s.

Of the three separate flow regimes that were used in the original Appendix I submittal, the most-limiting of them (<1.50E+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 factor9 is 1.16E+00. The PBAPS shorewidth factor10 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 10 Eating Fish 2.10E+01 1.60E+01 6.90E+00 0.00E+00 kg/ yr 11 Drinking Water 7.30E+02 5.10E+02 5.10E+02 5.10E+02 L/ yr 12 Swimming 2.80E+02 2.80E+02 0.00E+00 0.00E+00 h/ yr 12 Boating 1.20E+02 1.20E+02 6.70E+01 0.00E+00 h/ yr 12 Shoreline Recreation 3.25E+02 3.25E+02 1.40E+01 0.00E+00 h/ yr 12 Fishing from Conowingo Dam 3.25E+02 3.25E+02 0.00E+00 0.00E+00 h/ yr 7

10 CFR 50 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".

8 USGS National Water Information Service; Monitoring Site 01576000, Susquehanna River at Marietta, PA; http://waterdata.usgs.gov/nwis. Accessed 27 Feb 2018. Does not include Dec 2017 data.

9 10 From original ODCM. 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.

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Peach Bottom Atomic Power Station Licensee: Exelon Generation Company, LLC Unit 2 and 3 PSEG Nuclear, LLC Liquid Effluent Dose Assessment Conclusion For all permitted releases in 2017, the calculated total body dose was 6.12E-06 mrem and 7.00E-06 mrem to the limiting organ of adult 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 2017 meteorology to demonstrate compliance with 10 CFR 50, Appendix I.

Tables 7 and 8 utilized the CY-PB-170-210 spreadsheet to calculate the doses for elevated and ground releases with the 2017 MET data and gaseous total activity released, including C-14.

Table 7 utilized MET data from the locations with the highest X/Q from the Main Offgas Stack and the corresponding Reactor Building Exhaust Vents MET factors. Table 8 utilized MET data from the locations with the highest D/Q sectors from the Reactor Building Exhaust Vents and the corresponding Main Offgas Stack MET factors. 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 (I/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 (2017 vent: 2.24E-9 1/m2 vs. ODCM vent: 1.58E-09 1/m2) and therefore, the dose calculated by ODCM methodology is more conservative than the dose reported in Tables 7 and 8.

Table 7. Conservative Maximum Elevated Release Dose from 2017 Source Term and 2017 Meteorology 2017 Highest Gamma Beta Air I/P/T/C-Distance 2017 Vent Total Body Skin Dose Limiting Direction MS X/Q Air Dose Dose 14 Dose (m) X/Q (D/Q) Dose (mrem) (mrem) Receptor (D/Q) (mrad) (mrad) (mrem) 3.94E-08 1.16E-07 4900 N 2.28E-02 2.97E-02 2.36E-02 1.61E-02 1.64E-01 Bone (2.37E-10) (5.69E-10) 3.14E-08 1.39E-07 3800 SW 2.72E-02 3.52E-02 2.82E-02 1.91E-02 1.36E-01 Bone (1.80E-10) (5.34E-10)

Table 8. Ground-Level Dose from 2017 Source Term and 2017 Meteorology 2017 Highest 2017 MS Total Body Gamma Beta Air I/P/T/C-Distance Skin Dose Limiting Direction Vent D/Q X/Q Dose Air Dose Dose 14 Dose (m) (mrem) Receptor (X/Q) (D/Q) (mrem) (mrad) (mrad) (mrem) 9.66E-09 4.09E-09 1200 SSE 2.31E-01 3.00E-01 2.39E-01 1.62E-01 1.59E-01 Bone (1.21E-06) (7.11E-10) 8.67E-09 7.67E-09 900 NW 2.50E-01 3.25E-01 2.59E-01 1.75E-01 1.85E-01 Bone (1.31E-06) (7.30E-10) 14

Peach Bottom Atomic Power Station Licensee: Exelon Generation Company, LLC Unit 2 and 3 PSEG Nuclear, LLC Gaseous Radioactive Effluent Dose Assessment Conclusion The conservative maximum dose was 5.90E-01 mrem with the maximum receptor as the child bone and this is due to the incorporation of carbon-14 in the calculation. Without C-14, the maximum dose is 3.09E-03 mrem to the infant thyroid. The noble gas limiting air doses were 2.21E-01 mrad (gamma) and 1.51E-01 mrad (beta). Noble gas plume conservative dose was 2.14E-01 mrem for the year to the total body and 2.79E-01 mrem for the year to the skin.

A dose assessment was performed for members of the public due to their activities inside the site boundary. The location where a member of the public would spend a significant amount of time inside the site boundary is the Vehicle checkpoint, approximately 1,900 feet N of the PBAPS Unit 2 and Unit 3 reactor building exhaust vents. Assuming continuous occupancy, the calculated total body and skin doses were 1.48E-01 mrem and 1.92E-01 mrem, respectively.

The noble gas limiting air doses were 1.53E-01 mrad (gamma) and 1.03E-01 mrad (beta).

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.

15

Peach Bottom Atomic Power Station Licensee: Exelon Generation Company, LLC Unit 2 and 3 PSEG Nuclear, LLC ATTACHMENT 2: EFFLUENT

SUMMARY

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Peach Bottom Atomic Power Station Licensee: Exelon Generation Company, LLC Unit 2 and 3 PSEG Nuclear, LLC Gaseous Effluents - Summation of All Releases Period: January 1, 2017 through December 31, 2017 Unit: Peach Bottom Est. Total A. Fission & Activation Gases Units Quarter 1 Quarter 2 Quarter 3 Quarter 4 Error %

1. Total Release Ci 1.50E+02 1.11E+02 6.77E+01 1.70E+02 4.00E+01
2. Average release For the Period uCi/ s 1.93E+01 1.41E+01 8.52E+00 2.14E+01
3. Gamma Air Dose mrad 6.73E-02 4.97E-02 2.60E-02 7.90E-02
4. Beta Air Dose mrad 4.62E-02 3.41E-02 1.81E-02 5.40E-02
5. Percent of ODCM limit Gamma Air Dose  % 6.73E-01 4.97E-01 2.60E-01 7.90E-01 Beta Air Dose  % 2.31E-01 1.70E-01 9.04E-02 2.70E-01 B. Iodines
1. Total I-131 Ci 4.71E-05 7.40E-05 8.50E-05 2.09E-04 1.90E+01
2. Average release For the Period uCi/ s 6.06E-06 9.41E-06 1.07E-05 2.63E-05
3. Percent of ODCM limit  % * * * *
  • No ODCM defined Curie Limit, therefore a percentage of the limit cannot be calculated.

C. Particulate

1. Particulates with T1/2 > 8 days Ci 5.90E-05 8.48E-05 8.22E-05 2.22E-04 2.80E+01
2. Average release For the Period uCi/ s 7.59E-06 1.08E-05 1.03E-05 2.79E-05
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 5.73E+00 1.35E+01 1.41E+01 3.24E+00 1.30E+01
2. Average release For the Period uCi/ s 7.37E-01 1.71E+00 1.78E+00 4.07E-01
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 <LLD <LLD <LLD 4.00E+02
2. Average release For the Period uCi/ s <LLD <LLD <LLD <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 9.53E+00 9.53E+00 9.53E+00 9.53E+00
2. Average release For the Period uCi/ s 1.23E+00 1.21E+00 1.20E+00 1.20E+00 G. Iodine-131, 133 and 135, Tritium, Carbon-14 & Particulate
1. Organ Dose* mrem 1.48E-01 1.47E-01 1.47E-01 1.48E-01
2. Percent ODCM limit  % 9.83E-01 9.83E-01 9.83E-01 9.83E-01
  • C-14 contributes most significantly; therefore, the quarterly dose to the child bone is reported 17

Peach Bottom Atomic Power Station Licensee: Exelon Generation Company, LLC Unit 2 and 3 PSEG Nuclear, LLC Gaseous Effluents Release Point: Elevated (Main Offgas Stack)

Period: January 1, 2017 through December 31, 2017 Unit: Peach Bottom Nuclides Released Continuous Mode Batch Mode

1. Fission Gases Unit Quarter 1 Quarter 2 Quarter 3 Quarter 4 Quarter 1 Quarter 2 Quarter 3 Quarter 4 Kr-85 Ci <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD Kr-85m Ci <LLD 3.04E+00 9.55E+00 8.85E+00 <LLD <LLD <LLD <LLD Kr-87 Ci <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD Kr-88 Ci <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD Xe-133 Ci <LLD 4.26E+00 9.49E+00 3.40E+00 <LLD <LLD <LLD <LLD Xe-135 Ci 1.26E+00 1.43E+00 <LLD 1.83E+00 <LLD <LLD <LLD <LLD Xe-135m Ci <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD Xe-138 Ci <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD Ar-41 Ci <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD Unidentified Ci 2.50E+01 1.06E+01 1.03E+00 1.01E+01 <LLD <LLD <LLD <LLD Total For Period Ci 2.63E+01 1.93E+01 2.01E+01 2.42E+01 <LLD <LLD <LLD <LLD
2. Iodines I-131 Ci 3.57E-05 4.37E-05 5.88E-05 7.97E-05 <LLD <LLD <LLD <LLD I-133 Ci 9.66E-05 1.33E-04 1.58E-04 1.30E-04 <LLD <LLD <LLD <LLD I-135 Ci <LLD 2.24E-05 4.74E-06 <LLD <LLD <LLD <LLD <LLD Total For Period Ci 1.32E-04 1.99E-04 2.21E-04 2.10E-04 <LLD <LLD <LLD <LLD
3. Particulates Sr-89 Ci 3.07E-05 3.11E-05 4.35E-05 3.55E-05 <LLD <LLD <LLD <LLD Sr-90 Ci <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD Cs-134 Ci <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD Cs-137 Ci <LLD <LLD 1.45E-07 7.56E-08 <LLD <LLD <LLD <LLD Ba-140 Ci 7.08E-06 6.55E-06 5.79E-06 7.00E-06 <LLD <LLD <LLD <LLD La-140 Ci <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD Cr-51 Ci <LLD <LLD <LLD 4.46E-06 <LLD <LLD <LLD <LLD Mn-54 Ci <LLD <LLD <LLD 7.59E-07 <LLD <LLD <LLD <LLD Co-58 Ci <LLD <LLD <LLD 4.84E-07 <LLD <LLD <LLD <LLD Co-60 Ci 1.09E-06 5.56E-06 1.58E-06 6.37E-05 <LLD <LLD <LLD <LLD Mo-99 Ci <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD Ag-110m Ci <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD Ce-141 Ci <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD Ce-144 Ci <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD Zn-65 Ci <LLD <LLD <LLD 1.19E-06 <LLD <LLD <LLD <LLD Total For Period Ci 3.89E-05 4.32E-05 5.11E-05 1.13E-04 <LLD <LLD <LLD <LLD
4. Tritium H-3 Ci 8.18E-01 1.86E+00 2.55E+00 3.56E-01 <LLD <LLD <LLD <LLD
5. Gross Alpha Gross Alpha Ci <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD
6. Carbon-14 C-14 Ci 9.24E+00 9.24E+00 9.24E+00 9.24E+00 <LLD <LLD <LLD <LLD 18

Peach Bottom Atomic Power Station Licensee: Exelon Generation Company, LLC Unit 2 and 3 PSEG Nuclear, LLC Gaseous Effluents Release Point: Ground-Level (Units 2 and 3 Reactor Building Exhaust Vents and Abnormal Releases)

Period: January 1, 2017 through December 31, 2017 Unit: Peach Bottom Nuclides Released Continuous Mode Batch Mode

1. Fission Gases Unit Quarter 1 Quarter 2 Quarter 3 Quarter 4 Quarter 1 Quarter 2 Quarter 3 Quarter 4 Kr-85 Ci <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD Kr-85m Ci <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD Kr-87 Ci <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD Kr-88 Ci <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD Xe-133 Ci <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD Xe-135 Ci <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD Xe-135m Ci <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD Xe-138 Ci <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD Ar-41 Ci <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD Unidentified Ci 1.24E+02 9.15E+01 4.77E+01 1.46E+02 <LLD <LLD <LLD <LLD Total For Period Ci 1.24E+02 9.15E+01 4.77E+01 1.46E+02 <LLD <LLD <LLD <LLD
2. Iodines I-131 Ci 1.15E-05 3.03E-05 2.63E-05 1.30E-04 <LLD <LLD <LLD <LLD I-133 Ci 1.12E-04 9.99E-05 2.21E-04 2.01E-04 <LLD <LLD <LLD <LLD I-135 Ci <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD Total For Period Ci 1.24E-04 1.30E-04 2.48E-04 3.30E-04 <LLD <LLD <LLD <LLD
3. Particulates Sr-89 Ci <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD Sr-90 Ci <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD Cs-134 Ci <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD Cs-137 Ci <LLD 7.17E-06 <LLD <LLD <LLD <LLD <LLD <LLD Ba-140 Ci <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD La-140 Ci <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD Cr-51 Ci <LLD <LLD <LLD 3.46E-05 <LLD <LLD <LLD <LLD Mn-54 Ci <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD Co-58 Ci <LLD <LLD <LLD 3.46E-06 <LLD <LLD <LLD <LLD Co-60 Ci 2.02E-05 3.44E-05 3.11E-05 7.05E-05 <LLD <LLD <LLD <LLD Mo-99 Ci <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD Ag-110m Ci <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD Ce-141 Ci <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD Ce-144 Ci <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD Zn-65 Ci <LLD <LLD 5.64E-06 <LLD <LLD <LLD <LLD <LLD Total For Period Ci 2.02E-05 4.16E-05 3.11E-05 1.09E-04 <LLD <LLD <LLD <LLD
4. Tritium H-3 Ci 4.91E+00 1.16E+01 1.16E+01 2.88E+00 <LLD <LLD <LLD <LLD
5. Gross Alpha Gross Alpha Ci <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD
6. Carbon-14 C-14 Ci 2.86E-01 2.86E-01 2.86E-01 2.86E-01 <LLD <LLD <LLD <LLD 19

Peach Bottom Atomic Power Station Licensee: Exelon Generation Company, LLC Unit 2 and 3 PSEG Nuclear, LLC Liquid Effluents - Summation of All Releases Period: January 1, 2017 to December 31, 2017 Unit: Peach Bottom Est. Total A. Fission & Activation Gases Units Quarter 1 Quarter 2 Quarter 3 Quarter 4 Error %

1. Total Release (not including tritium, gases 4.61E-04 2.14E-04 1.41E-03 2.05E-03 1.60E+01

& alpha) Ci

2. Average diluted concentration for the 7.19E-13 3.21E-13 2.08E-12 3.03E-12 Period Ci/ mL
3. Percent of applicable limit Total Body Dose  % 8.37E-04 3.20E-03 2.18E-03 6.32E-03 Organ Dose  % 6.03E-04 2.44E-03 8.94E-04 2.80E-03 Est. Total B. Tritium Error %
1. Total Release Ci 2.11E+00 9.99E-01 1.17E+00 2.59E+00 6.40E+00
2. Average diluted concentration for the 3.28E-09 1.50E-09 1.73E-09 3.83E-09 Period µCi/ mL
3. Percent of applicable limit*  % 3.28E-05 1.50E-05 1.73E-05 3.83E-05
  • 10x 10CFR20 Limit of 1.00E-03 µCi/ mL; ODCMS 3.8.B.1.a Est. Total C. Dissolved & Entrained Gases Error %
1. Total Release Ci <LLD <LLD <LLD 4.51E-06 2.80E+01
2. Average diluted concentration for the <LLD <LLD <LLD 6.68E-15 Period Ci/ mL
3. Percent of ODCM limit*  % 0.00E+00 0.00E+00 0.00E+00 3.34E-09
  • ODCMS 3.8.B.1.b Limit for all noble gases is 2.00E-04 µCi/ mL Est. Total D. Gross Alpha Activity Error %
1. Total Release Ci <LLD <LLD <LLD <LLD 2.30E+01 E. Volume of Waste Released (prior to 1.57E+08 1.57E+08 1.59E+08 1.59E+08 dilution) Liters F. Volume of Dilution Water Used During 6.41E+11 6.68E+11 6.80E+11 6.75E+11 Period Liters 20

Peach Bottom Atomic Power Station Licensee: Exelon Generation Company, LLC Unit 2 and 3 PSEG Nuclear, LLC Liquid Effluents Release Points - Liquid Radwaste, RHR Leaks and Groundwater Period: January 1, 2017 through December 31, 2017 Unit: Peach Bottom Nuclides Released Continuous Mode Batch Mode Unit Quarter 1 Quarter 2 Quarter 3 Quarter 4 Quarter 1 Quarter 2 Quarter 3 Quarter 4 Sr-89 Ci <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD Sr-90 Ci <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD Cs-134 Ci <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD Cs-137 Ci 7.40E-06 3.30E-06 <LLD 1.35E-06 7.03E-08 <LLD <LLD 4.20E-07 I-131 Ci <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD Co-58 Ci 1.20E-05 <LLD <LLD 1.59E-04 <LLD <LLD <LLD <LLD Co-60 Ci 3.40E-04 1.66E-04 1.28E-03 8.66E-04 <LLD <LLD <LLD <LLD Fe-59 Ci <LLD <LLD <LLD 2.79E-05 <LLD <LLD <LLD <LLD Zn-65 Ci 3.15E-05 1.49E-05 4.13E-05 1.03E-04 <LLD <LLD <LLD <LLD Mn-54 Ci 5.54E-05 2.14E-05 6.88E-05 2.51E-04 <LLD <LLD <LLD <LLD Cr-51 Ci <LLD <LLD <LLD 6.19E-04 <LLD <LLD <LLD <LLD Zr-95 Ci <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD Nb-95 Ci <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD Mo-99 Ci <LLD <LLD 5.93E-06 <LLD <LLD <LLD <LLD <LLD Tc-99m Ci <LLD <LLD 5.78E-06 <LLD <LLD <LLD <LLD <LLD Ba-140 Ci <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD La-140 Ci <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD Ce-141 Ci <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD Ag-110m Ci <LLD <LLD <LLD 7.96E-06 <LLD <LLD <LLD <LLD Fe-55 Ci 1.49E-05 4.38E-06 1.51E-05 <LLD <LLD <LLD <LLD <LLD Sb-124 Ci <LLD <LLD <LLD 1.21E-05 <LLD <LLD <LLD <LLD Sb-125 Ci <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD Ni-63 Ci <LLD 4.00E-06 <LLD <LLD <LLD <LLD <LLD <LLD H-3 Ci 2.10E+00 9.99E-01 9.08E-01 2.26E+00 5.48E-03 <LLD 2.67E-01 3.27E-01 P-32 Ci <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD Total for Period Ci 2.10E+00 9.99E-01 9.09E-01 2.26E+00 5.48E-03 0.00E+00 2.67E-01 3.27E-01 Xe-133 Ci <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD Xe-135 Ci <LLD <LLD <LLD <LLD <LLD <LLD <LLD 4.51E-06 Xe-138 Ci <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD Total for Period (ex-tritium, Ci 4.61E-04 2.14E-04 1.41E-03 2.05E-03 7.03E-08 0.00E+00 0.00E+00 4.20E-07 gases and alpha) 21

Peach Bottom Atomic Power Station Licensee: Exelon Generation Company, LLC Unit 2 and 3 PSEG Nuclear, LLC ATTACHMENT 3: SOLID WASTE AND IRRADIATED FUEL SHIPMENTS 22

Peach Bottom Atomic Power Station Licensee: Exelon Generation Company, LLC Unit 2 and 3 PSEG Nuclear, LLC Solid Waste Shipped 1.Type of Waste Units 2017 Est. error %

A: Spent Resin, Filters, Sludges, Evaporator Bottoms, etc m 3 9.38E+01 Ci 2.49E+02 2.50E+01 B: Dry Compressible Waste, Contaminated Equipment, etc. m3 8.69E+02 Ci 2.39E+01 2.50E+01 C: Irradiated Components, Control Rods, etc. m3 1.78E-01 Ci 6.10E+00 2.50E+01 D: Other (Oil, SBLC) m3 1.41E+01 Ci 8.76E-04 2.50E+01 2.Estimate of Major Nuclide Composition (by type of waste)

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

Abundance % Abundance %

Nuclide (no cutoff) Activity (Ci) Nuclide (no cutoff) Activity (Ci)

H-3 2.30E-01 5.72E-01 Sn-113 2.62E-05 6.52E-05 C-14 1.10E+00 2.75E+00 Sb-124 2.62E-03 6.53E-03 Cl-36 6.14E-07 1.53E-06 Sb-125 2.30E-01 5.72E-01 Cr-51 2.17E+00 5.41E+00 I-131 2.93E-24 7.29E-24 Mn-54 3.04E+01 7.58E+01 Cs-134 2.34E-03 5.83E-03 Fe-55 1.56E-05 3.89E-05 Cs-137 8.03E+00 2.00E+01 Fe-59 6.39E-04 1.59E-03 Ba-140 9.52E-13 2.37E-12 C0-57 8.27E-03 2.06E-02 La-140 1.06E-105 2.64E-105 Co-58 5.26E+01 1.31E+02 Ce-141 3.35E-07 8.35E-07 Co-60 1.99E+00 4.95E+00 Ce-144 1.70E-01 4.23E-01 Ni-63 3.12E+00 7.77E+00 Hf-175 8.84E-08 2.20E-07 Zn-65 2.77E-04 6.90E-04 Pu-238 1.59E-04 3.95E-04 Sr-89 2.56E-02 6.38E-02 Pu-239 5.34E-05 1.33E-04 Sr-90 1.44E-06 3.59E-06 Pu-241 1.63E-02 4.07E-02 Zr-95 5.38E-05 1.34E-04 Am-241 1.39E-04 3.46E-04 Nb-95 2.95E-03 7.34E-03 Cm-242 4.90E-06 1.22E-05 Tc-99 2.69E-09 6.70E-09 Cm-243 2.24E-05 5.59E-05 Ru-103 7.79E-02 1.94E-01 Cm-244 3.59E-04 8.95E-04 Ag-110m 3.06E-05 7.61E-05 Analyses of 2017 resin samples showed higher H-3 activity than typically observed. The results were not the largest seen in PB history, but more significant than the previous five years. The original sample was reanalyzed and a confirmatory sample was analyzed and found to be statistically the same, therefore the H-3 scaling factors were adjusted for shipping of resin in 2017. These results were documented in IR 04000032 and the new scaling factors are accounted for in the table above.

It is expected that resin shipped in the future will also utilize higher scaling factors.

23

Peach Bottom Atomic Power Station Licensee: Exelon Generation Company, LLC Unit 2 and 3 PSEG Nuclear, LLC

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

Abundance % Abundance %

Nuclide (no cutoff) Activity (Ci) Nuclide (no cutoff) Activity (Ci)

H-3 6.45E-02 1.55E-02 Tc-99 2.87E-02 6.90E-03 C-14 1.15E-02 2.77E-03 Ag-110m 2.96E-02 7.11E-03 Cr-51 8.78E-02 2.11E-02 I-129 5.00E-03 1.20E-03 Mn-54 2.00E+00 4.81E-01 Cs-134 1.78E-04 4.27E-05 Fe-55 3.84E+01 9.23E+00 Cs-137 1.37E+00 3.30E-01 Fe-59 6.20E-02 1.49E-02 Ce-141 2.24E-11 5.37E-12 Co-58 2.65E-02 6.36E-03 Ce-144 5.12E-01 1.23E-01 Co-60 5.37E+01 1.29E+01 Pu-238 1.23E-05 2.95E-06 Ni-63 2.19E+00 5.25E-01 Pu-239 4.50E-04 1.08E-04 Zn-65 1.36E+00 3.26E-01 Pu-241 8.08E-03 1.94E-03 Sr-89 7.08E-04 1.70E-04 Am-241 2.10E-05 5.04E-06 Sr-90 3.42E-02 8.22E-03 Cm-242 7.53E-07 1.81E-07 Zr-95 3.00E-22 7.20E-23 Cm-243 2.59E-06 6.23E-07 Nb-94 8.62E-02 2.07E-02 Cm-244 3.20E-05 7.69E-06 Nb-95 1.77E-03 4.26E-04

c. Irradiated Components, Control Rods, etc.

Abundance % Abundance %

Nuclide (no cutoff) Activity (Ci) Nuclide (no cutoff) Activity (Ci)

H-3 2.82E-05 1.72E-06 Ni-59 6.78E-02 4.13E-03 C-14 1.01E-03 6.18E-05 Ni-63 3.52E+00 2.15E-01 Cr-51 1.18E-07 7.19E-09 Zn-65 1.63E-02 9.90E-04 Mn-54 8.91E-01 5.43E-02 Zr-95 4.31E-15 2.63E-16 Fe-55 4.59E+01 2.80E+00 Nb-94 5.46E-05 3.33E-06 Fe-59 6.25E-06 3.81E-07 Nb-95 9.05E-15 5.51E-16 Co-58 2.75E-03 1.68E-04 Tc-99 8.57E-05 5.22E-06 Co-60 4.96E+01 3.02E+00 Cs-137 D 8.72E-05 5.31E-06 Ce-144 D 4.03E-05 2.46E-06

d. Other: Oil Abundance % Activity Nuclide (no cutoff) (Ci)

Co-60 2.29E+01 2.00E-04 Cs-137 1.31E+01 1.15E-04 Ce-144 6.40E+01 5.61E-04 24

Peach Bottom Atomic Power Station Licensee: Exelon Generation Company, LLC Unit 2 and 3 PSEG Nuclear, LLC 3.Solid Waste Disposition Number of Mode of Destination Shipments Transportation Hittman Transport 32 Energy Solution Services (CVRF) Bear Creek Operations Services Hittman Transport 4 Energy Solution Services (GRF) Gallaher Road Operations Services Hittman Transport Energy Solutions LLC Clive Disposal Site- Containerized 20 Services Waste Facility Irradiated Fuel Shipments No shipment of irradiated fuel was made during the reporting period of 2017.

Changes to Process Control Program (PCP)

There was a revision to RW-AA-100 during the 2017 reporting period. This revision was editorial in nature, with the only changes identifying the new nuclear plant within the Exelon Fleet and removing a decommissioned plant. There was no change to the overall program or the controls maintained by the program.

25

Peach Bottom Atomic Power Station Licensee: Exelon Generation Company, LLC Unit 2 and 3 PSEG Nuclear, LLC ATTACHMENT 4: RADIOLOGICAL IMPACT ON MAN 26

Peach Bottom Atomic Power Station Licensee: Exelon Generation Company, LLC Unit 2 and 3 PSEG Nuclear, LLC Radiological Impact on Man Location  % of Applicable Estimated Age Distance Direction Applicable Effluent Organ Dose Group (meters) (toward) Limit Limit Unit Gamma -

Noble Gas 2.21E-01 All 1.10E+03 SSE 1.11E+00 2.00E+01 mrad Air Dose Beta - Air Noble Gas 1.51E-01 All 1.10E+03 SSE 3.78E-01 4.00E+01 mrad Dose Total Noble Gas Body 2.14E-01 All 1.10E+03 SSE 2.14E+00 1.00E+01 mrem (gamma)

Skin Noble Gas 2.79E-01 All 1.10E+03 SSE 9.30E-01 3.00E+01 mrem (Beta)

Gaseous Iodine, Particulate, Bone 5.90E-01 Child 1.10E+03 SSE 1.97E+00 3.00E+01 mrem Carbon-14 &

Tritium Gaseous Iodine, Thyroid 3.09E-03 Infant 1.10E+03 SSE 1.03E-02 3.00E+01 mrem Particulate &

Tritium Total Liquid Body 1.03E-04 Child 1.71E-03 6.00E+00 mrem (gamma) Site Boundary Liquid GI-LLI 1.67E-04 Adult 8.34E-04 2.00E+01 mrem Direct Total 0.00E+00 All 1.15E+03 SSE 0.00E+00 2.20E+01 mrem Radiation Body 40 CFR 190 Doses Location  % of Applicable Estimated Age Distance Direction Applicable Effluent Organ Dose Group (meters) (toward) Limit Limit Unit Total Total Dose 2.14E-01 All 1.15E+03 SSE 8.56E-01 2.50E+01 mrem Body Total Dose Thyroid 3.09E-03 All 1.15E+03 SSE 4.12E-03 7.50E+01 mrem Total Dose Bone 5.90E-01 All 1.15E+03 SSE 2.36E+00 2.50E+01 mrem Total Total Dose 2.14E-01 All 1.15E+03 SSE 7.14E+00 3.00E+00 mrem Body Total Dose Bone 5.90E-01 All 1.15E+03 SSE 1.97E+01 3.00E+00 mrem Total Dose Thyroid 2.24E-01 All 1.15E+03 SSE 4.08E-01 5.50E+01 mrem 27

Peach Bottom Atomic Power Station Licensee: Exelon Generation Company, LLC Unit 2 and 3 PSEG Nuclear, LLC ATTACHMENT 5: METEOROLOGICAL DATA 28

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 2017 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 0 4 0 0 0 0 4 NNE 0 2 0 0 0 0 2 NE 1 0 0 0 0 0 1 ENE 5 3 0 0 0 0 8 E 4 13 1 0 0 0 18 ESE 0 6 0 0 0 0 6 SE 0 1 2 0 0 0 3 SSE 0 0 3 0 0 0 3 S 0 3 5 1 0 0 9 SSW 0 0 4 0 0 0 4 SW 0 0 2 0 0 0 2 WSW 0 1 1 0 1 0 3 W 0 0 0 2 0 0 2 WNW 0 0 1 3 0 0 4 NW 0 0 1 0 0 0 1 NNW 0 0 1 3 0 0 4 Variable 0 0 0 0 0 0 0 Total 10 33 21 9 1 0 74 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: 14 29

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 2017 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 0 2 1 0 0 0 3 NNE 0 1 0 0 0 0 1 NE 0 1 0 0 0 0 1 ENE 3 2 0 0 0 0 5 E 4 3 0 0 0 0 7 ESE 0 2 0 0 0 0 2 SE 0 3 0 0 0 0 3 SSE 0 3 1 4 0 0 8 S 0 3 4 1 0 0 8 SSW 0 0 1 0 0 0 1 SW 0 0 5 1 0 0 6 WSW 0 1 4 2 0 0 7 W 0 3 9 11 2 0 25 WNW 0 0 13 12 0 0 25 NW 0 4 9 14 5 0 32 NNW 0 3 13 3 1 0 20 Variable 0 0 0 0 0 0 0 Total 7 31 60 48 8 0 154 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: 14 30

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 2017 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 0 1 1 0 0 0 2 NNE 1 1 0 0 0 0 2 NE 0 0 0 0 0 0 0 ENE 1 0 0 0 0 0 1 E 0 1 0 0 0 0 1 ESE 1 2 0 0 0 0 3 SE 1 2 2 0 0 0 5 SSE 0 3 3 0 0 0 6 S 0 3 4 1 0 0 8 SSW 0 3 0 1 0 0 4 SW 0 1 2 0 0 0 3 WSW 0 0 5 1 0 0 6 W 0 6 9 10 1 0 26 WNW 0 1 14 12 0 0 27 NW 0 4 11 9 1 0 25 NNW 0 6 17 3 1 0 27 Variable 0 0 0 0 0 0 0 Total 4 34 68 37 3 0 146 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: 14 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 2017 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 4 28 15 3 0 0 50 NNE 9 16 5 0 0 0 30 NE 18 41 1 0 0 0 60 ENE 23 12 0 0 0 0 35 E 28 21 0 0 0 0 49 ESE 10 16 0 0 0 0 26 SE 13 40 8 0 0 0 61 SSE 8 26 20 1 0 0 55 S 5 29 25 2 0 0 61 SSW 0 7 7 2 0 0 16 SW 2 17 7 2 0 0 28 WSW 4 18 19 7 0 0 48 W 7 36 52 37 3 0 135 WNW 12 52 70 39 0 0 173 NW 8 48 51 45 3 1 156 NNW 6 31 69 10 0 0 116 Variable 0 0 0 0 0 0 0 Total 157 438 349 148 6 1 1099 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: 14 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 2017 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 9 5 0 0 0 0 14 NNE 11 3 0 0 0 0 14 NE 23 3 0 0 0 0 26 ENE 24 6 0 0 0 0 30 E 40 5 0 0 0 0 45 ESE 40 5 0 0 0 0 45 SE 19 17 0 0 0 0 36 SSE 21 18 3 0 0 0 42 S 8 13 6 0 0 0 27 SSW 9 4 10 1 0 0 24 SW 10 27 2 1 0 0 40 WSW 11 35 16 0 0 0 62 W 4 37 9 0 0 0 50 WNW 6 17 2 0 0 0 25 NW 6 18 5 0 0 0 29 NNW 9 8 2 2 0 0 21 Variable 0 0 0 0 0 0 0 Total 250 221 55 4 0 0 530 Hours of calm in this stability class: 15 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 14 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 2017 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 0 0 1 NNE 2 0 0 0 0 0 2 NE 7 0 0 0 0 0 7 ENE 3 0 0 0 0 0 3 E 12 1 0 0 0 0 13 ESE 10 0 0 0 0 0 10 SE 3 0 0 0 0 0 3 SSE 0 0 0 0 0 0 0 S 4 0 0 0 0 0 4 SSW 3 0 0 0 0 0 3 SW 3 0 0 0 0 0 3 WSW 6 9 0 0 0 0 15 W 2 1 0 0 0 0 3 WNW 5 1 0 0 0 0 6 NW 5 1 0 0 0 0 6 NNW 3 0 0 0 0 0 3 Variable 0 0 0 0 0 0 0 Total 69 13 0 0 0 0 82 Hours of calm in this stability class: 11 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 14 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 2017 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 0 0 4 NNE 0 0 0 0 0 0 0 NE 3 0 0 0 0 0 3 ENE 3 0 0 0 0 0 3 E 5 0 0 0 0 0 5 ESE 3 0 0 0 0 0 3 SE 3 0 0 0 0 0 3 SSE 1 0 0 0 0 0 1 S 0 0 0 0 0 0 0 SSW 1 1 1 0 0 0 3 SW 2 1 0 0 0 0 3 WSW 1 2 0 0 0 0 3 W 1 0 0 0 0 0 1 WNW 1 0 0 0 0 0 1 NW 0 0 0 0 0 0 0 NNW 1 0 0 0 0 0 1 Variable 0 0 0 0 0 0 0 Total 29 4 1 0 0 0 34 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: 14 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 2017 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 0 0 0 0 NNE 0 0 0 0 0 0 0 NE 0 0 0 0 0 0 0 ENE 0 1 0 0 0 0 1 E 0 1 0 0 0 0 1 ESE 0 0 3 1 0 0 4 SE 0 0 0 0 0 0 0 SSE 0 0 0 0 0 0 0 S 0 0 0 0 0 0 0 SSW 0 0 0 0 0 0 0 SW 0 0 0 0 0 0 0 WSW 0 0 0 0 0 0 0 W 0 0 0 0 0 0 0 WNW 0 0 0 0 0 0 0 NW 0 0 0 0 0 0 0 NNW 0 0 0 0 0 0 0 Variable 0 0 0 0 0 0 0 Total 0 2 3 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: 14 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 2017 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 0 0 0 0 NNE 0 0 0 0 0 0 0 NE 0 1 0 0 0 0 1 ENE 0 0 0 0 0 0 0 E 0 0 0 0 0 0 0 ESE 0 0 0 0 0 0 0 SE 0 1 3 1 0 0 5 SSE 0 0 0 0 0 0 0 S 0 0 0 1 0 0 1 SSW 0 0 0 1 0 0 1 SW 0 0 0 0 0 0 0 WSW 0 0 0 0 0 0 0 W 0 0 0 0 0 0 0 WNW 0 0 0 0 0 0 0 NW 0 0 0 0 0 0 0 NNW 0 0 0 0 0 0 0 Variable 0 0 0 0 0 0 0 Total 0 2 3 3 0 0 8 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: 14 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 2017 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 1 0 0 0 0 1 NNE 0 1 0 0 0 0 1 NE 0 0 0 0 0 0 0 ENE 0 0 0 0 0 0 0 E 0 1 0 0 0 0 1 ESE 0 2 1 0 0 0 3 SE 0 0 1 1 0 0 2 SSE 0 0 1 1 0 0 2 S 0 0 2 3 1 0 6 SSW 0 0 0 2 0 0 2 SW 0 0 0 1 0 0 1 WSW 0 0 1 0 0 1 2 W 0 0 0 0 4 3 7 WNW 0 0 0 2 5 3 10 NW 0 0 0 1 1 0 2 NNW 0 0 0 0 2 2 4 Variable 0 0 0 0 0 0 0 Total 0 5 6 11 13 9 44 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: 14 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 2017 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 1 9 31 23 6 3 73 NNE 0 1 13 12 4 0 30 NE 1 9 20 3 4 0 37 ENE 0 7 15 9 9 3 43 E 1 6 14 17 0 0 38 ESE 1 10 8 20 0 0 39 SE 1 14 35 12 0 0 62 SSE 1 9 23 12 2 1 48 S 1 8 31 30 7 0 77 SSW 1 8 21 27 9 1 67 SW 0 4 6 6 4 1 21 WSW 0 2 20 16 4 4 46 W 0 8 35 36 47 30 156 WNW 1 10 41 60 76 34 222 NW 1 14 43 65 59 31 213 NNW 0 14 53 59 11 10 147 Variable 0 0 0 0 0 0 0 Total 10 133 409 407 242 118 1319 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: 14 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 2017 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 8 9 2 0 0 21 NNE 1 5 5 1 0 0 12 NE 2 6 3 2 0 0 13 ENE 2 5 9 1 0 0 17 E 1 14 14 3 1 0 33 ESE 2 14 13 3 0 0 32 SE 3 23 21 2 0 0 49 SSE 2 29 20 3 0 0 54 S 6 23 42 22 4 1 98 SSW 1 9 16 8 7 0 41 SW 3 11 11 17 4 0 46 WSW 4 4 7 21 9 0 45 W 0 7 12 33 10 0 62 WNW 1 6 13 22 6 1 49 NW 3 3 7 40 1 0 54 NNW 0 10 14 7 0 0 31 Variable 0 0 0 0 0 0 0 Total 33 177 216 187 42 2 657 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: 14 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 2017 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 0 0 0 0 0 0 NNE 0 0 0 0 0 0 0 NE 1 0 0 0 0 0 1 ENE 3 1 0 0 0 0 4 E 0 3 2 0 0 0 5 ESE 1 5 2 0 0 0 8 SE 3 2 3 0 0 0 8 SSE 0 3 0 0 0 0 3 S 1 9 4 0 0 0 14 SSW 0 9 10 1 0 0 20 SW 0 8 4 0 0 0 12 WSW 0 0 1 3 1 0 5 W 1 0 1 3 0 0 5 WNW 1 1 0 1 0 0 3 NW 0 2 2 0 0 0 4 NNW 0 0 0 0 0 0 0 Variable 0 0 0 0 0 0 0 Total 11 43 29 8 1 0 92 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: 14 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 2017 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 0 0 0 0 NNE 0 0 0 0 0 0 0 NE 0 0 0 0 0 0 0 ENE 0 0 0 0 0 0 0 E 0 0 0 0 0 0 0 ESE 0 0 0 0 0 0 0 SE 0 0 0 0 0 0 0 SSE 0 0 0 0 0 0 0 S 0 0 0 0 0 0 0 SSW 0 2 2 0 0 0 4 SW 0 1 10 0 0 0 11 WSW 0 0 2 1 0 0 3 W 0 0 0 0 0 0 0 WNW 0 0 0 0 0 0 0 NW 0 0 0 0 0 0 0 NNW 0 0 0 0 0 0 0 Variable 0 0 0 0 0 0 0 Total 0 3 14 1 0 0 18 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: 14 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: April - June 2017 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 6 11 0 0 0 0 17 NNE 5 6 0 0 0 0 11 NE 10 5 0 0 0 0 15 ENE 12 1 0 0 0 0 13 E 19 7 0 0 0 0 26 ESE 4 32 0 0 0 0 36 SE 0 9 6 0 0 0 15 SSE 0 0 10 0 0 0 10 S 0 2 5 0 0 0 7 SSW 0 0 2 0 0 0 2 SW 0 0 2 0 0 0 2 WSW 0 1 0 2 0 0 3 W 1 0 5 2 0 0 8 WNW 0 0 6 1 0 0 7 NW 0 3 10 1 0 0 14 NNW 2 9 9 1 0 0 21 Variable 0 0 0 0 0 0 0 Total 59 86 55 7 0 0 207 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: 4 43

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 2017 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 5 7 0 0 0 0 12 NNE 2 2 0 0 0 0 4 NE 4 5 0 0 0 0 9 ENE 16 1 0 0 0 0 17 E 10 2 0 0 0 0 12 ESE 3 4 0 0 0 0 7 SE 0 11 6 0 0 0 17 SSE 0 2 15 3 0 0 20 S 0 7 9 1 0 0 17 SSW 0 0 6 1 0 0 7 SW 0 3 6 1 0 0 10 WSW 0 6 9 6 0 0 21 W 0 6 18 3 0 0 27 WNW 0 5 14 2 0 0 21 NW 1 6 9 5 0 0 21 NNW 2 11 6 0 0 0 19 Variable 0 0 0 0 0 0 0 Total 43 78 98 22 0 0 241 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: 4 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: April - June 2017 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 4 1 0 0 0 0 5 NE 4 0 0 0 0 0 4 ENE 3 1 0 0 0 0 4 E 4 0 0 0 0 0 4 ESE 1 0 1 0 0 0 2 SE 1 4 4 0 0 0 9 SSE 1 5 7 2 0 0 15 S 0 4 2 0 0 0 6 SSW 0 1 5 2 0 0 8 SW 1 0 4 0 0 0 5 WSW 1 4 7 3 0 0 15 W 0 8 6 1 0 0 15 WNW 0 6 9 2 0 0 17 NW 1 5 8 1 0 0 15 NNW 0 3 9 0 0 0 12 Variable 0 0 0 0 0 0 0 Total 23 44 63 11 0 0 141 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: 4 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 2017 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 18 27 5 0 0 0 50 NNE 19 14 0 0 0 0 33 NE 40 17 0 0 0 0 57 ENE 32 8 0 0 0 0 40 E 27 29 3 0 0 0 59 ESE 19 21 2 0 0 0 42 SE 7 46 35 0 0 0 88 SSE 6 37 13 4 0 0 60 S 4 28 32 1 0 0 65 SSW 10 14 9 0 0 0 33 SW 7 13 14 0 0 0 34 WSW 6 12 22 8 0 0 48 W 9 18 26 4 0 0 57 WNW 5 22 15 7 0 0 49 NW 4 17 21 5 0 0 47 NNW 8 26 14 0 0 0 48 Variable 0 0 0 0 0 0 0 Total 221 349 211 29 0 0 810 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: 4 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 2017 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 14 5 0 0 0 0 19 NNE 16 3 0 0 0 0 19 NE 10 0 0 0 0 0 10 ENE 13 4 0 0 0 0 17 E 20 3 0 0 0 0 23 ESE 14 3 0 0 0 0 17 SE 22 6 0 0 0 0 28 SSE 23 23 1 1 0 0 48 S 19 30 6 0 0 0 55 SSW 11 14 2 0 0 0 27 SW 21 24 5 0 0 0 50 WSW 15 37 3 0 0 0 55 W 15 37 6 0 0 0 58 WNW 21 29 0 0 0 0 50 NW 15 17 3 0 0 0 35 NNW 15 2 2 0 0 0 19 Variable 0 0 0 0 0 0 0 Total 264 237 28 1 0 0 530 Hours of calm in this stability class: 8 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 4 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 2017 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 1 0 0 0 0 4 NNE 0 0 0 0 0 0 0 NE 1 0 0 0 0 0 1 ENE 2 0 0 0 0 0 2 E 10 0 0 0 0 0 10 ESE 16 0 0 0 0 0 16 SE 4 0 0 0 0 0 4 SSE 1 0 0 0 0 0 1 S 9 2 0 0 0 0 11 SSW 2 1 0 0 0 0 3 SW 17 4 0 0 0 0 21 WSW 20 18 0 0 0 0 38 W 15 11 0 0 0 0 26 WNW 7 5 0 0 0 0 12 NW 7 0 0 0 0 0 7 NNW 8 1 0 0 0 0 9 Variable 0 0 0 0 0 0 0 Total 122 43 0 0 0 0 165 Hours of calm in this stability class: 9 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 4 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 2017 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 0 0 0 0 NNE 0 0 0 0 0 0 0 NE 0 0 0 0 0 0 0 ENE 1 0 0 0 0 0 1 E 3 0 0 0 0 0 3 ESE 5 0 0 0 0 0 5 SE 0 0 0 0 0 0 0 SSE 0 0 0 0 0 0 0 S 3 0 0 0 0 0 3 SSW 1 0 0 0 0 0 1 SW 12 8 0 0 0 0 20 WSW 4 8 0 0 0 0 12 W 5 4 0 0 0 0 9 WNW 4 0 0 0 0 0 4 NW 0 0 0 0 0 0 0 NNW 3 0 0 0 0 0 3 Variable 0 0 0 0 0 0 0 Total 41 20 0 0 0 0 61 Hours of calm in this stability class: 8 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 4 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 2017 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 0 0 0 0 NNE 0 0 0 0 0 0 0 NE 0 2 0 0 0 0 2 ENE 0 4 0 0 0 0 4 E 0 2 1 1 0 0 4 ESE 0 3 1 0 0 0 4 SE 0 0 1 3 0 0 4 SSE 0 0 0 0 0 0 0 S 0 0 0 0 0 0 0 SSW 0 0 0 0 0 0 0 SW 0 0 0 0 0 0 0 WSW 0 0 0 0 0 0 0 W 0 0 0 0 0 0 0 WNW 0 0 0 0 0 0 0 NW 0 0 0 0 0 0 0 NNW 0 0 0 0 0 0 0 Variable 0 0 0 0 0 0 0 Total 0 11 3 4 0 0 18 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: 4 50

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 2017 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 3 0 0 0 3 NNE 0 1 0 1 0 0 2 NE 0 2 2 0 0 0 4 ENE 2 2 2 1 0 0 7 E 0 2 1 0 0 0 3 ESE 0 1 2 0 0 0 3 SE 0 0 6 3 0 0 9 SSE 0 0 0 1 0 0 1 S 0 0 0 0 0 0 0 SSW 0 0 0 0 0 0 0 SW 0 0 0 0 0 0 0 WSW 0 0 0 0 0 0 0 W 0 0 0 0 0 0 0 WNW 0 0 0 0 0 0 0 NW 0 0 0 0 0 0 0 NNW 0 0 1 0 0 0 1 Variable 0 0 0 0 0 0 0 Total 2 8 17 6 0 0 33 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: 4 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 2017 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 1 2 0 0 0 3 NNE 0 5 0 0 0 0 5 NE 0 3 1 0 0 0 4 ENE 1 1 0 1 0 0 3 E 1 2 2 0 0 0 5 ESE 0 11 2 0 0 0 13 SE 0 1 6 5 0 0 12 SSE 0 0 0 3 0 0 3 S 0 0 3 7 0 0 10 SSW 0 0 5 2 0 0 7 SW 0 0 0 1 0 0 1 WSW 0 0 1 0 0 1 2 W 0 0 1 1 1 1 4 WNW 0 0 2 5 0 1 8 NW 0 0 1 3 5 0 9 NNW 0 1 5 5 3 0 14 Variable 0 0 0 0 0 0 0 Total 2 25 31 33 9 3 103 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: 4 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 2017 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 1 9 16 13 0 0 39 NNE 4 9 12 10 0 0 35 NE 3 11 11 7 0 0 32 ENE 1 15 14 11 7 0 48 E 12 20 27 3 0 0 62 ESE 5 30 52 32 17 0 136 SE 3 14 48 34 10 0 109 SSE 5 19 37 34 0 0 95 S 1 7 26 25 13 0 72 SSW 1 6 31 36 6 0 80 SW 2 3 23 14 6 0 48 WSW 1 7 16 25 13 1 63 W 2 8 17 32 15 5 79 WNW 2 4 27 42 19 5 99 NW 0 7 20 39 29 7 102 NNW 3 14 37 20 5 0 79 Variable 0 0 0 0 0 0 0 Total 46 183 414 377 140 18 1178 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: 4 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 2017 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 6 9 0 0 0 17 NNE 2 2 10 0 0 0 14 NE 5 9 8 2 0 0 24 ENE 2 8 1 0 0 0 11 E 5 9 4 0 0 0 18 ESE 2 8 9 3 2 2 26 SE 1 14 7 0 1 0 23 SSE 1 21 9 6 0 0 37 S 4 9 26 11 2 0 52 SSW 3 11 44 36 5 0 99 SW 3 14 20 7 2 0 46 WSW 2 9 11 23 5 0 50 W 3 10 20 29 2 0 64 WNW 1 12 13 19 9 0 54 NW 1 4 10 33 2 0 50 NNW 1 6 18 10 4 0 39 Variable 0 0 0 0 0 0 0 Total 38 152 219 179 34 2 624 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: 4 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 2017 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 1 6 6 0 0 0 13 NNE 0 1 0 0 0 0 1 NE 0 3 2 0 0 0 5 ENE 2 0 1 0 0 0 3 E 0 0 0 0 0 0 0 ESE 0 0 0 0 0 0 0 SE 1 1 0 0 0 0 2 SSE 0 1 5 0 0 0 6 S 0 5 7 0 0 0 12 SSW 1 8 7 1 0 0 17 SW 0 5 7 1 0 0 13 WSW 3 8 17 11 0 0 39 W 1 3 8 9 0 0 21 WNW 3 6 10 7 4 0 30 NW 2 4 6 4 2 0 18 NNW 1 2 7 1 0 0 11 Variable 0 0 0 0 0 0 0 Total 15 53 83 34 6 0 191 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: 4 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 2017 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 2 1 3 0 0 0 6 NNE 1 0 1 0 0 0 2 NE 0 1 0 0 0 0 1 ENE 0 0 0 0 0 0 0 E 0 0 0 0 0 0 0 ESE 0 0 0 0 0 0 0 SE 0 0 0 0 0 0 0 SSE 0 0 0 0 0 0 0 S 0 2 0 0 0 0 2 SSW 0 3 0 0 0 0 3 SW 0 2 0 0 0 0 2 WSW 0 0 0 1 0 0 1 W 0 1 1 0 0 0 2 WNW 0 0 2 3 0 0 5 NW 1 2 1 1 0 0 5 NNW 0 1 3 0 0 0 4 Variable 0 0 0 0 0 0 0 Total 4 13 11 5 0 0 33 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: 4 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: July - September 2017 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 10 17 0 0 0 0 27 NNE 12 15 0 0 0 0 27 NE 11 2 0 0 0 0 13 ENE 12 0 0 0 0 0 12 E 10 0 0 0 0 0 10 ESE 8 0 0 0 0 0 8 SE 2 11 2 0 0 0 15 SSE 1 6 3 0 0 0 10 S 1 3 5 0 0 0 9 SSW 0 0 1 0 0 0 1 SW 0 0 0 0 0 0 0 WSW 0 0 0 0 0 0 0 W 0 0 0 0 0 0 0 WNW 0 0 0 0 0 0 0 NW 2 0 0 0 0 0 2 NNW 3 9 2 0 0 0 14 Variable 0 0 0 0 0 0 0 Total 72 63 13 0 0 0 148 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: 4 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: July - September 2017 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 9 18 2 0 0 0 29 NNE 12 3 0 0 0 0 15 NE 11 0 0 0 0 0 11 ENE 6 1 0 0 0 0 7 E 3 0 0 0 0 0 3 ESE 1 0 0 0 0 0 1 SE 1 4 4 0 0 0 9 SSE 3 9 14 0 0 0 26 S 0 5 6 0 0 0 11 SSW 0 2 2 0 0 0 4 SW 0 0 8 0 0 0 8 WSW 0 0 0 0 0 0 0 W 0 4 2 0 0 0 6 WNW 1 5 3 0 0 0 9 NW 4 14 3 0 0 0 21 NNW 3 42 13 6 0 0 64 Variable 0 0 0 0 0 0 0 Total 54 107 57 6 0 0 224 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: 4 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: July - September 2017 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 8 1 0 0 0 11 NNE 5 2 0 0 0 0 7 NE 2 0 0 0 0 0 2 ENE 2 0 0 0 0 0 2 E 0 0 0 0 0 0 0 ESE 3 0 0 0 0 0 3 SE 0 2 0 0 0 0 2 SSE 1 3 2 0 0 0 6 S 0 1 2 0 0 0 3 SSW 2 3 0 0 0 0 5 SW 2 4 2 0 0 0 8 WSW 0 2 0 0 0 0 2 W 1 2 3 0 0 0 6 WNW 1 4 4 0 0 0 9 NW 1 9 1 0 0 0 11 NNW 2 23 6 1 0 0 32 Variable 0 0 0 0 0 0 0 Total 24 63 21 1 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: 4 59

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: July - September 2017 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 34 33 18 0 0 0 85 NNE 21 2 3 0 0 0 26 NE 19 0 0 0 0 0 19 ENE 21 0 0 0 0 0 21 E 17 0 0 0 0 0 17 ESE 7 1 0 0 0 0 8 SE 12 26 4 0 0 0 42 SSE 19 35 6 0 0 0 60 S 12 10 3 0 0 0 25 SSW 14 6 2 0 0 0 22 SW 4 10 16 0 0 0 30 WSW 9 12 10 0 0 0 31 W 13 18 8 0 0 0 39 WNW 17 21 4 0 0 0 42 NW 23 40 7 0 0 0 70 NNW 23 41 22 6 0 0 92 Variable 0 0 0 0 0 0 0 Total 265 255 103 6 0 0 629 Hours of calm in this stability class: 4 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 4 60

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: July - September 2017 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 29 18 4 0 0 0 51 NNE 22 1 0 0 0 0 23 NE 9 1 0 0 0 0 10 ENE 10 0 0 0 0 0 10 E 9 0 0 0 0 0 9 ESE 16 2 0 0 0 0 18 SE 20 7 1 0 0 0 28 SSE 24 19 3 0 0 0 46 S 23 20 4 0 0 0 47 SSW 18 9 0 0 0 0 27 SW 31 23 0 0 0 0 54 WSW 38 24 0 0 0 0 62 W 37 37 1 0 0 0 75 WNW 27 34 0 0 0 0 61 NW 32 40 4 0 0 0 76 NNW 31 31 12 0 0 0 74 Variable 0 0 0 0 0 0 0 Total 376 266 29 0 0 0 671 Hours of calm in this stability class: 14 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 4 61

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: July - September 2017 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 2 0 0 0 0 0 2 NNE 0 0 0 0 0 0 0 NE 0 0 0 0 0 0 0 ENE 0 0 0 0 0 0 0 E 0 0 0 0 0 0 0 ESE 0 0 0 0 0 0 0 SE 1 0 0 0 0 0 1 SSE 2 0 0 0 0 0 2 S 7 0 0 0 0 0 7 SSW 21 0 0 0 0 0 21 SW 32 7 0 0 0 0 39 WSW 47 38 0 0 0 0 85 W 35 16 0 0 0 0 51 WNW 22 10 0 0 0 0 32 NW 10 17 0 0 0 0 27 NNW 6 2 0 0 0 0 8 Variable 0 0 0 0 0 0 0 Total 185 90 0 0 0 0 275 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: 4 62

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: July - September 2017 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 0 0 0 0 NNE 0 0 0 0 0 0 0 NE 0 0 0 0 0 0 0 ENE 0 0 0 0 0 0 0 E 0 0 0 0 0 0 0 ESE 0 0 0 0 0 0 0 SE 0 0 0 0 0 0 0 SSE 0 0 0 0 0 0 0 S 0 0 0 0 0 0 0 SSW 1 0 0 0 0 0 1 SW 34 12 1 0 0 0 47 WSW 38 20 0 0 0 0 58 W 9 7 0 0 0 0 16 WNW 5 1 0 0 0 0 6 NW 1 0 0 0 0 0 1 NNW 0 0 0 0 0 0 0 Variable 0 0 0 0 0 0 0 Total 88 40 1 0 0 0 129 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: 4 63

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: July - September 2017 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 0 0 0 0 NNE 0 0 0 0 0 0 0 NE 0 0 1 0 0 0 1 ENE 0 1 1 0 0 0 2 E 0 3 1 0 0 0 4 ESE 0 2 2 1 0 0 5 SE 0 0 2 0 0 0 2 SSE 0 0 0 0 0 0 0 S 0 0 0 0 0 0 0 SSW 0 0 0 1 0 0 1 SW 0 0 0 0 0 0 0 WSW 0 0 0 0 0 0 0 W 0 0 0 0 0 0 0 WNW 0 0 0 0 0 0 0 NW 0 0 0 0 0 0 0 NNW 0 0 0 0 0 0 0 Variable 0 0 0 0 0 0 0 Total 0 6 7 2 0 0 15 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: 4 64

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: July - September 2017 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 0 0 0 0 NNE 0 0 0 0 0 0 0 NE 0 1 0 0 0 0 1 ENE 0 3 0 0 0 0 3 E 1 4 0 0 0 0 5 ESE 0 4 0 0 0 0 4 SE 0 3 4 0 0 0 7 SSE 0 0 0 0 0 0 0 S 0 0 0 0 0 0 0 SSW 0 0 0 0 0 0 0 SW 0 0 0 0 0 0 0 WSW 0 0 0 0 0 0 0 W 0 0 0 0 0 0 0 WNW 0 0 0 0 0 0 0 NW 0 0 0 0 0 0 0 NNW 0 0 0 0 0 0 0 Variable 0 0 0 0 0 0 0 Total 1 15 4 0 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: 4 65

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: July - September 2017 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 2 1 0 0 0 3 NNE 1 1 4 2 0 0 8 NE 0 4 1 1 0 0 6 ENE 4 6 0 0 0 0 10 E 1 5 2 0 0 0 8 ESE 2 5 3 1 0 0 11 SE 0 3 1 0 0 0 4 SSE 0 0 2 0 0 0 2 S 0 0 0 0 0 0 0 SSW 0 0 3 2 0 0 5 SW 0 0 0 0 0 0 0 WSW 0 0 0 0 0 0 0 W 0 0 0 0 0 0 0 WNW 0 0 0 0 0 0 0 NW 0 1 0 0 0 0 1 NNW 0 1 1 0 0 0 2 Variable 0 0 0 0 0 0 0 Total 8 28 18 6 0 0 60 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: 4 66

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: July - September 2017 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 12 30 40 23 5 0 110 NNE 9 14 35 19 2 0 79 NE 5 13 5 3 3 0 29 ENE 11 17 17 2 0 0 47 E 16 26 21 4 0 0 67 ESE 10 14 18 3 0 0 45 SE 9 11 5 1 0 0 26 SSE 3 13 31 7 0 0 54 S 3 24 31 15 1 0 74 SSW 1 13 17 10 0 0 41 SW 5 6 12 2 0 0 25 WSW 1 6 20 26 0 0 53 W 1 4 7 9 0 0 21 WNW 3 14 24 15 4 0 60 NW 3 18 10 3 1 0 35 NNW 3 53 87 25 16 0 184 Variable 0 0 0 0 0 0 0 Total 95 276 380 167 32 0 950 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: 4 67

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: July - September 2017 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 0 11 30 37 3 0 81 NNE 4 18 18 7 1 0 48 NE 5 16 8 4 2 0 35 ENE 7 15 11 4 0 0 37 E 12 36 13 2 0 0 63 ESE 6 27 9 6 0 0 48 SE 4 23 9 3 0 0 39 SSE 3 31 19 4 0 0 57 S 4 21 11 8 1 0 45 SSW 2 19 21 10 3 0 55 SW 3 9 16 7 0 0 35 WSW 2 15 20 7 0 0 44 W 5 15 24 19 0 0 63 WNW 2 7 10 12 1 0 32 NW 2 9 13 24 1 0 49 NNW 2 18 27 29 6 0 82 Variable 0 0 0 0 0 0 0 Total 63 290 259 183 18 0 813 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: 4 68

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: July - September 2017 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 2 12 26 5 0 0 45 NNE 2 4 9 2 0 0 17 NE 2 5 2 0 0 0 9 ENE 3 4 1 0 0 0 8 E 1 3 0 0 0 0 4 ESE 1 0 0 0 0 0 1 SE 0 0 0 0 0 0 0 SSE 2 2 0 0 0 0 4 S 2 10 0 0 0 0 12 SSW 6 8 3 0 0 0 17 SW 2 11 2 1 1 0 17 WSW 0 6 7 4 1 0 18 W 3 6 10 27 3 0 49 WNW 1 2 2 13 0 0 18 NW 1 4 4 7 0 0 16 NNW 4 9 22 6 0 0 41 Variable 0 0 0 0 0 0 0 Total 32 86 88 65 5 0 276 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: 4 69

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: July - September 2017 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 4 3 5 1 0 0 13 NNE 1 1 2 0 0 0 4 NE 1 1 0 0 0 0 2 ENE 0 0 0 0 0 0 0 E 1 0 0 0 0 0 1 ESE 0 0 0 0 0 0 0 SE 1 0 0 0 0 0 1 SSE 0 0 0 0 0 0 0 S 0 0 0 0 0 0 0 SSW 2 0 0 0 0 0 2 SW 0 3 0 0 0 0 3 WSW 1 3 0 0 0 0 4 W 1 3 1 0 0 0 5 WNW 1 2 7 2 0 0 12 NW 2 3 3 0 0 0 8 NNW 3 3 9 0 0 0 15 Variable 0 0 0 0 0 0 0 Total 18 22 27 3 0 0 70 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: 4 70

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 2017 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 0 1 0 0 0 0 1 NNE 1 6 0 0 0 0 7 NE 4 1 0 0 0 0 5 ENE 8 0 0 0 0 0 8 E 8 0 0 0 0 0 8 ESE 3 4 0 0 0 0 7 SE 0 5 2 0 0 0 7 SSE 0 3 1 0 0 0 4 S 0 3 4 1 0 0 8 SSW 0 3 6 1 0 0 10 SW 0 0 0 0 0 0 0 WSW 0 1 0 0 0 0 1 W 0 1 0 0 0 0 1 WNW 0 0 0 0 0 0 0 NW 0 1 0 0 0 0 1 NNW 0 3 0 0 0 0 3 Variable 0 0 0 0 0 0 0 Total 24 32 13 2 0 0 71 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: 4 71

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 2017 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 5 1 1 0 0 8 NNE 4 12 0 0 0 0 16 NE 6 1 0 0 0 0 7 ENE 6 0 0 0 0 0 6 E 4 1 0 0 0 0 5 ESE 3 4 0 0 0 0 7 SE 0 3 0 0 0 0 3 SSE 2 5 2 1 0 0 10 S 0 3 9 0 0 0 12 SSW 0 7 8 0 0 0 15 SW 0 2 1 0 0 0 3 WSW 0 1 3 1 0 0 5 W 0 0 13 3 0 0 16 WNW 0 0 7 5 0 0 12 NW 0 1 7 2 0 0 10 NNW 0 2 17 4 0 0 23 Variable 0 0 0 0 0 0 0 Total 26 47 68 17 0 0 158 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: 4 72

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 2017 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 3 2 0 0 0 0 5 NNE 4 2 0 0 0 0 6 NE 5 0 0 0 0 0 5 ENE 2 0 0 0 0 0 2 E 3 0 0 0 0 0 3 ESE 1 2 0 0 0 0 3 SE 0 3 1 0 0 0 4 SSE 0 4 0 0 0 0 4 S 0 5 2 0 0 0 7 SSW 0 2 4 0 0 0 6 SW 0 0 0 1 0 0 1 WSW 0 2 1 1 0 0 4 W 0 1 6 2 0 0 9 WNW 0 1 2 8 0 0 11 NW 0 2 5 0 0 0 7 NNW 1 6 19 5 0 0 31 Variable 0 0 0 0 0 0 0 Total 19 32 40 17 0 0 108 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: 4 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 2017 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 19 34 30 1 0 0 84 NNE 22 11 0 0 0 0 33 NE 17 0 0 0 0 0 17 ENE 10 0 0 0 0 0 10 E 15 0 0 0 0 0 15 ESE 11 6 0 0 0 0 17 SE 5 27 14 0 0 0 46 SSE 11 56 16 6 0 0 89 S 11 36 20 2 0 0 69 SSW 10 24 10 1 0 0 45 SW 4 12 8 1 0 0 25 WSW 7 8 10 0 0 0 25 W 12 14 29 11 0 0 66 WNW 11 34 34 20 0 0 99 NW 5 38 47 11 0 0 101 NNW 13 63 42 6 1 0 125 Variable 0 0 0 0 0 0 0 Total 183 363 260 59 1 0 866 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: 4 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 2017 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 25 14 0 0 0 0 39 NNE 25 6 0 0 0 0 31 NE 22 0 0 0 0 0 22 ENE 18 0 0 0 0 0 18 E 39 0 0 0 0 0 39 ESE 19 3 0 0 0 0 22 SE 23 18 0 0 0 0 41 SSE 23 33 0 0 0 0 56 S 31 24 5 0 0 0 60 SSW 25 16 1 2 0 0 44 SW 23 20 2 1 0 0 46 WSW 17 39 1 0 0 0 57 W 26 39 8 0 0 0 73 WNW 19 33 0 0 0 0 52 NW 28 32 1 0 0 0 61 NNW 16 29 0 0 0 0 45 Variable 0 0 0 0 0 0 0 Total 379 306 18 3 0 0 706 Hours of calm in this stability class: 10 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 4 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 2017 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 4 1 0 0 0 0 5 NNE 1 0 0 0 0 0 1 NE 1 0 0 0 0 0 1 ENE 4 0 0 0 0 0 4 E 9 0 0 0 0 0 9 ESE 9 0 0 0 0 0 9 SE 7 2 0 0 0 0 9 SSE 2 0 0 0 0 0 2 S 5 0 0 0 0 0 5 SSW 4 3 0 0 0 0 7 SW 13 7 0 0 0 0 20 WSW 23 11 0 0 0 0 34 W 28 8 0 0 0 0 36 WNW 24 2 0 0 0 0 26 NW 11 0 0 0 0 0 11 NNW 7 2 0 0 0 0 9 Variable 0 0 0 0 0 0 0 Total 152 36 0 0 0 0 188 Hours of calm in this stability class: 6 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 4 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 2017 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 1 1 0 0 0 0 2 NNE 1 0 0 0 0 0 1 NE 3 0 0 0 0 0 3 ENE 0 0 0 0 0 0 0 E 1 0 0 0 0 0 1 ESE 5 0 0 0 0 0 5 SE 0 0 0 0 0 0 0 SSE 1 0 0 0 0 0 1 S 2 0 0 0 0 0 2 SSW 0 0 0 0 0 0 0 SW 10 0 0 0 0 0 10 WSW 23 19 0 0 0 0 42 W 11 0 0 0 0 0 11 WNW 6 0 0 0 0 0 6 NW 3 0 0 0 0 0 3 NNW 2 0 0 0 0 0 2 Variable 0 0 0 0 0 0 0 Total 69 20 0 0 0 0 89 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: 4 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 2017 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 0 0 0 0 NNE 0 0 0 0 0 0 0 NE 0 0 0 0 0 0 0 ENE 0 0 0 0 0 0 0 E 0 0 0 0 0 0 0 ESE 0 1 0 0 0 0 1 SE 0 0 1 1 0 0 2 SSE 0 0 0 0 0 0 0 S 0 0 0 0 0 0 0 SSW 0 0 0 0 0 0 0 SW 0 0 0 0 0 0 0 WSW 0 0 0 0 0 0 0 W 0 0 0 0 0 0 0 WNW 0 0 0 0 0 0 0 NW 0 0 0 0 0 0 0 NNW 0 0 0 0 0 0 0 Variable 0 0 0 0 0 0 0 Total 0 1 1 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: 4 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 2017 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 0 0 0 0 NNE 0 0 1 0 0 0 1 NE 0 0 0 0 0 0 0 ENE 0 1 0 0 0 0 1 E 0 0 0 0 0 0 0 ESE 0 1 0 0 0 0 1 SE 0 0 2 0 0 0 2 SSE 0 0 1 0 0 0 1 S 0 0 0 0 0 0 0 SSW 0 0 0 0 0 0 0 SW 0 0 0 0 0 0 0 WSW 0 0 0 0 0 0 0 W 0 0 0 0 0 0 0 WNW 0 0 0 0 0 0 0 NW 0 0 0 0 0 0 0 NNW 0 0 0 0 0 0 0 Variable 0 0 0 0 0 0 0 Total 0 2 4 0 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: 4 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 2017 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 0 0 0 0 0 0 NNE 0 1 0 0 0 0 1 NE 0 0 0 0 0 0 0 ENE 1 3 0 0 0 0 4 E 1 1 0 0 0 0 2 ESE 0 5 0 0 0 0 5 SE 0 1 3 1 0 0 5 SSE 0 0 2 0 0 0 2 S 0 0 2 3 1 0 6 SSW 0 0 5 5 1 0 11 SW 0 0 2 0 0 0 2 WSW 0 0 0 0 0 0 0 W 0 0 0 1 0 0 1 WNW 0 0 0 0 0 0 0 NW 0 0 0 0 0 0 0 NNW 0 0 0 0 0 0 0 Variable 0 0 0 0 0 0 0 Total 2 11 14 10 2 0 39 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: 4 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 2017 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 5 19 33 31 3 0 91 NNE 3 26 9 6 0 0 44 NE 6 12 17 7 0 0 42 ENE 10 5 3 3 0 0 21 E 6 9 5 2 0 0 22 ESE 5 12 7 4 1 1 30 SE 5 14 24 11 12 0 66 SSE 2 10 33 10 5 1 61 S 1 15 33 25 1 2 77 SSW 1 7 28 18 7 0 61 SW 0 5 14 10 1 0 30 WSW 2 9 10 15 4 0 40 W 3 7 12 37 26 10 95 WNW 1 4 15 34 20 23 97 NW 4 8 41 75 30 8 166 NNW 4 13 57 30 11 3 118 Variable 0 0 0 0 0 0 0 Total 58 175 341 318 121 48 1061 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 36 Hours of missing stability measurements in all stability classes: 4 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 2017 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 5 36 8 0 0 52 NNE 1 14 9 0 0 0 24 NE 2 7 15 2 0 0 26 ENE 2 5 2 2 0 0 11 E 4 22 8 1 0 0 35 ESE 3 15 24 1 0 0 43 SE 4 19 24 12 0 0 59 SSE 6 22 21 24 0 0 73 S 1 19 37 29 3 0 89 SSW 4 8 28 12 2 1 55 SW 2 6 22 31 1 0 62 WSW 3 8 23 13 2 0 49 W 4 5 13 36 6 0 64 WNW 2 2 13 22 4 0 43 NW 3 9 16 33 3 0 64 NNW 5 13 16 8 0 0 42 Variable 0 0 0 0 0 0 0 Total 49 179 307 234 21 1 791 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 19 Hours of missing stability measurements in all stability classes: 4 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 2017 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 3 1 0 2 0 0 6 NNE 0 1 0 0 0 0 1 NE 0 1 0 0 0 0 1 ENE 4 4 0 0 0 0 8 E 3 5 0 0 0 0 8 ESE 0 7 0 0 0 0 7 SE 4 4 1 0 0 0 9 SSE 0 1 3 3 0 0 7 S 3 1 9 1 0 0 14 SSW 4 7 7 1 0 0 19 SW 1 4 5 2 0 0 12 WSW 2 12 14 7 0 0 35 W 3 6 8 13 0 0 30 WNW 0 4 1 5 0 0 10 NW 1 2 2 0 0 0 5 NNW 0 4 3 0 0 0 7 Variable 0 0 0 0 0 0 0 Total 28 64 53 34 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: 4 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 2017 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 1 4 1 0 0 0 6 NNE 0 1 0 0 0 0 1 NE 1 0 0 0 0 0 1 ENE 2 1 0 0 0 0 3 E 2 1 1 0 0 0 4 ESE 1 2 0 0 0 0 3 SE 0 0 0 0 0 0 0 SSE 2 3 0 0 0 0 5 S 2 4 1 0 0 0 7 SSW 2 2 0 0 0 0 4 SW 2 0 0 0 0 0 2 WSW 3 1 0 3 0 0 7 W 1 1 2 2 0 0 6 WNW 3 4 1 0 0 0 8 NW 0 4 1 0 0 0 5 NNW 2 3 3 0 0 0 8 Variable 0 0 0 0 0 0 0 Total 24 31 10 5 0 0 70 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: 4 84

Peach Bottom Atomic Power Station Licensee: Exelon Generation Company, LLC Unit 2 and 3 PSEG Nuclear, LLC APPENDIX A: ERRATA DATA SECTION 85

Peach Bottom Atomic Power Station Licensee: Exelon Generation Company, LLC Unit 2 and 3 PSEG Nuclear, LLC 2016 Dose Assessment (Total Organ Dose)

Tables 7 and 8 utilized the CY-PB-170-210 spreadsheet to calculate the doses for elevated and ground releases with the 2016 MET data and gaseous total activity released, including C-14. An error was identified in the spreadsheet for calculating the dose to the Infant Bone and Liver, but not the Thyroid. Due to C-14 inclusion, the Bone is the max organ dose and therefore, Table 7 and 8 reported the incorrect dose to the Infant Bone. The calculations also used the wrong X/Q for the vent and stack for the calculation. This error was documented in IR # 04112670.

Therefore, the dose reported in this Errata Data Section, includes the correct calculation and correct X/Q. As these dose values are applicable to the hypothetical maximum exposed individual, there is no change to the other doses reported in the 2016 ARERR (40 CFR 190). The calculation issue only applied to the doses calculated in Table 7 and 8. There were no errors identified in the noble gas dose calculations therefore, those values were not changed from that reported in the 2016 report.

Table 7. Conservative Maximum Elevated Release Dose from 2016 Source Term and 2016 Meteorology 2016 2016 Vent Total Body Skin Gamma Beta Air I/P/T/C-Distance Highest Limiting Direction X/Q Dose Dose Air Dose Dose 14 Dose (m) MS X/Q Receptor (D/Q) (mrem) (mrem) (mrad) (mrad) (mrem)

(D/Q) 4.42E-08 1.14E-07 4900 N 2.57E-02 3.34E-02 2.65E-02 1.83E-02 1.84E-01 Bone (3.10E-10) (5.99E-10) 4.31E-08 1.19E-07 3800 SW 2.68E-02 3.48E-02 2.77E-02 1.90E-02 1.80E-01 Bone (2.52E-10) (5.01E-10)

Table 8. Ground-Level Dose from 2016 Source Term and 2016 Meteorology 2016 Total 2016 MS Skin Gamma Beta Air I/P/T/C-Distance Highest Body Limiting Direction X/Q Dose Air Dose Dose 14 Dose (m) Vent D/Q Dose Receptor (D/Q) (mrem) (mrad) (mrad) (mrem)

(X/Q) (mrem) 1.00E-08 5.46E-09 1200 SSE 2.42E-01 3.14E-01 2.51E-01 1.69E-01 1.55E-01 Bone (1.11E-06) (6.31E-10) 6.64E-09 3.60E-09 900 NW 2.51E-01 3.25E-01 2.60E-01 1.75E-01 1.52E-01 Bone (1.15E-06) (5.08E-10) 86

Peach Bottom Atomic Power Station Licensee: Exelon Generation Company, LLC Unit 2 and 3 PSEG Nuclear, LLC APPENDIX B: ODCM REVISION 87

Peach Bottom Atomic Power Station Licensee: Exelon Generation Company, LLC Unit 2 and 3 PSEG Nuclear, LLC ODCM Rev 16 Summary The primary reason for the revision of the ODCM in 2017 was due to an error identified during the V&V of an effluent software, OpenEMS. A discrepancy between the software dose calculations and CY-PB-170-210 spreadsheet dose calculations was discovered (on the order of 2%). Further investigation determined that the definition of "Ri,"(dose factors) "Ws," and "Wv" did not align with NUREG 0133 (Section 5.3.1). The revision corrected the definitions of "Ws/Wv," ground and elevation dispersion/deposition factors. The corrected definitions are:

"Ws/Wv " equals D/Q for the ingestion and ground-plane pathway and "Ws/Wv " equals X/Q for H-3, C-14, and the inhalation pathway. The alignment of the definition of "Ri" to NUREG 0133 will impact the dose calculations for radioiodine/particulate/tritium and carbon-14.

Also, the values for X/Q and D/Q for "Ws" (main stack dispersion and deposition meteorological factors) for the max receptor, 1500 m SW were updated because the last two 10-year averages have been significantly less than the ODCM values. The values for X/Q for "Wv" (reactor building exhaust vent dispersion meteorological factors) for the Max Receptor, 1500m SW was updated because the last two 10-year averages have been higher than the ODCM value. All updated values were taken from the 2005-2014 average.

Other changes included updating liquid dose factors or REMP station coordinates/locations and administrative errors. These changes do not affect the reported effluent dose for 2017.

ODCM Rev 16 is attached after this summary section.

The doses recorded in the main body of this report were calculated using ODCM Rev 15 methodology and the 2017 source term since the ODCM was not implemented until 12/29/17, and 2017 Records followed Rev 15 methodology. However, since the ODCM was revised because of a calculation error, it was decided to present the updated doses from this report which were affected by ODCM Rev 16. The definition changes in Rev 16 affect the reported radioiodine/particulate/tritium and carbon-14 dose for the 2017 effluent report. The noble gas reported values are not impacted by ODCM Rev 16. The sections and page numbers of the 2017 ARERR impacted by ODCM Rev 16 are reported below. The updated doses are calculated with the 2017 source term and ODCM Rev 16 methodology.

2017 ARERR Dose Updated for ODCM Rev 16 Methodologies Correction to page 4:

The maximum calculated organ dose (bone) from iodines (I-131, I-133 and I-135), tritium (H-3),

carbon-14 (C-14) and particulates to any individual due to all gaseous effluents was 1.39E-01 mrem, which was approximately 4.64E-01% of the annual limit.

Correction to page 9:

Carbon-14 The resulting annual dose to the maximum conservative receptor is 1.39E-01 mrem, with the limiting receptor as the child bone.

88

Peach Bottom Atomic Power Station Licensee: Exelon Generation Company, LLC Unit 2 and 3 PSEG Nuclear, LLC Correction to page 15:

Gaseous Radioactive Effluent Dose Assessment Conclusion The conservative maximum dose was 1.39E-01 mrem with the maximum receptor as the child bone and this is due to the incorporation of carbon-14 in the calculation. Without C-14, the maximum dose is 3.12E-03 mrem to the infant thyroid.

The differences shown above are due to the change in X/Q between ODCM Rev 15 and Rev 16.

While, the vent X/Q increased, the vent only contributes to 3.00E+00% of the C-14 activity and dose released; therefore, the smaller X/Q for the main stack dominates the C-14 dose.

Below is a more detailed table on the changes in dose to infant thyroid under ODCM Rev 16.

The maximum dose is still to the bone when C-14 is included and due to the dependence of X/Q for C-14 dose, there is no impact to reported dose in Tables 7 and 8 on page 17. When C-14 is not included, the differences between ODCM Rev 15 and 16 can be seen. The same philosophy still applies when reviewing these reported doses: These locations, while having larger MET factors than the ODCM, the cow-milk-infant pathway does not exist at these locations and when the ODCM location MET factors are compared, the 2017 MET factors and thus the dose reported below are similar. The difference in methodology/definitions between Rev 15 and 16 are minor, since C-14 and H-3 are the dominant nuclides released, contributing the most dose, and those have always used the X/Q value to calculate dose.

Table B.1. Comparison of Infant Thyroid Dose Calculated for Locations Listed in Table 7 and 8 and the ODCM I/P/T Thyroid I/P/T Thyroid 2017 Stack X/Q 2017 Vent X/Q Distance (m) Direction Dose (Rev 15) Dose (Rev 16)

(D/Q) (D/Q)

(mrem) (mrem)

Rev 15 Rev 15 1500 SW 8.78E-08 1.58E-07 3.09E-03 3.11E-03 (8.78E-10) (1.58E-09)

Rev 16 Rev 16 1500 SW 8.11E-09 4.43E-07 3.08E-03 3.12E-03 (4.19E-10) (1.58E-09) 4.09E-09 1.21E-06 4900 N 1.14E-03 1.15E-03 (7.11E-10) (9.66E-09) 3.14E-08 1.39E-07 3800 SW 1.08E-03 1.09E-03 (1.80E-10) (5.34E-10) 7.67E-09 1.31E-06 1200 SSE 1.39E-02 1.40E-02 (7.30E-10) (8.67E-09) 8.67E-09 7.67E-09 900 NW 1.30E-02 1.31E-02 (1.31E-06) (7.30E-10) 89

Peach Bottom Atomic Power Station Licensee: Exelon Generation Company, LLC Unit 2 and 3 PSEG Nuclear, LLC Correction to page 17:

Carbon-14 quarterly dose and percentage corrected.

Gaseous Effluents - Summation of All Releases Period: January 1, 2017 through December 31, 2017 Unit: Peach Bottom Est. Total A. Fission & Activation Gases Units Quarter 1 Quarter 2 Quarter 3 Quarter 4 Error %

1. Total Release Ci 1.50E+02 1.11E+02 6.77E+01 1.70E+02 4.00E+01
2. Average release For the Period uCi/ s 1.93E+01 1.41E+01 8.52E+00 2.14E+01
3. Gamma Air Dose mrad 6.73E-02 4.97E-02 2.60E-02 7.90E-02
4. Beta Air Dose mrad 4.62E-02 3.41E-02 1.81E-02 5.40E-02
5. Percent of ODCM limit Gamma Air Dose  % 6.73E-01 4.97E-01 2.60E-01 7.90E-01 Beta Air Dose  % 2.31E-01 1.70E-01 9.04E-02 2.70E-01 B. Iodines
1. Total I-131 Ci 4.71E-05 7.40E-05 8.50E-05 2.09E-04 1.90E+01
2. Average release For the Period uCi/ s 6.06E-06 9.41E-06 1.07E-05 2.63E-05
3. Percent of ODCM limit  % * * * *
  • No ODCM defined Curie Limit, therefore a percentage of the limit cannot be calculated.

C. Particulate

1. Particulates with T1/2 > 8 days Ci 5.90E-05 8.48E-05 8.22E-05 2.22E-04 2.80E+01
2. Average release For the Period uCi/ s 7.59E-06 1.08E-05 1.03E-05 2.79E-05
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 5.73E+00 1.35E+01 1.41E+01 3.24E+00 1.30E+01
2. Average release For the Period uCi/ s 7.37E-01 1.71E+00 1.78E+00 4.07E-01
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 <LLD <LLD <LLD 4.00E+02
2. Average release For the Period uCi/ s <LLD <LLD <LLD <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 9.53E+00 9.53E+00 9.53E+00 9.53E+00
2. Average release For the Period uCi/ s 1.23E+00 1.21E+00 1.20E+00 1.20E+00 G. Iodine-131, 133 and 135, Tritium, Carbon-14 & Particulate
1. Organ Dose* mrem 3.47E-02 3.47E-02 3.47E-02 3.47E-02
2. Percent ODCM limit  % 2.31E-01 2.31E-01 2.31E-01 2.31E-01
  • C-14 contributes most significantly; therefore, the quarterly dose to the child bone is reported 90

Peach Bottom Atomic Power Station Licensee: Exelon Generation Company, LLC Unit 2 and 3 PSEG Nuclear, LLC Correction to page 27:

Child bone, infant thyroid, and the corresponding percentage of the ODCM limit are corrected.

Radiological Impact on Man Location  % of Applicable Estimated Age Distance Direction Applicable Effluent Organ Dose Group (meters) (toward) Limit Limit Unit Gamma -

Noble Gas 2.21E-01 All 1.10E+03 SSE 1.11E+00 2.00E+01 mrad Air Dose Beta - Air Noble Gas 1.51E-01 All 1.10E+03 SSE 3.87E-01 4.00E+01 mrad Dose Total Noble Gas Body 2.14E-01 All 1.10E+03 SSE 2.14E+00 1.00E+01 mrem (gamma)

Skin Noble Gas 2.79E-01 All 1.10E+03 SSE 9.30E-01 3.00E+01 mrem (Beta)

Gaseous Iodine, Particulate, Bone 1.39E-01 Child 1.10E+03 SSE 4.63E-01 3.00E+01 mrem Carbon-14 &

Tritium Gaseous Iodine, Thyroid 3.12E-03 Infant 1.10E+03 SSE 1.04E-02 3.00E+01 mrem Particulate &

Tritium Total Liquid Body 1.03E-04 Child 1.71E-03 6.00E+00 mrem (gamma) Site Boundary Liquid GI-LLI 1.67E-04 Adult 8.34E-04 2.00E+01 mrem Direct Total 0.00E+00 All 1.15E+03 SSE 0.00E+00 2.20E+01 mrem Radiation Body 40 CFR 190 Doses Location  % of Applicable Estimated Age Distance Direction Applicable Effluent Organ Dose Group (meters) (toward) Limit Limit Unit Total Dose Total Body 2.14E-01 All 1.15E+03 SSE 8.56E-01 2.50E+01 mrem Total Dose Thyroid 3.12E-03 All 1.15E+03 SSE 4.16E-03 7.50E+01 mrem Total Dose Bone 1.39E-01 All 1.15E+03 SSE 5.57E-01 2.50E+01 mrem Total Dose Total Body 2.14E-01 All 1.15E+03 SSE 7.14E+00 3.00E+00 mrem Total Dose Bone 1.39E-01 All 1.15E+03 SSE 4.63E-01 3.00E+00 mrem Total Dose Thyroid 2.24E-01 All 1.15E+03 SSE 4.08E-01 5.50E+01 mrem 91

Peach Bottom Atomic Power Station Licensee: Exelon Generation Company, LLC Unit 2 and 3 PSEG Nuclear, LLC (This page is left intentionally blank) 92

Page 1*of 64 Rev. 16 Offsite Dose Calculation Manual Revision 16 Peach Bottom Atomic Power Station Units 2 and 3 Exelon Generation Company, LLC Docket Nos. 50-277 & 50-278 Implemented:

P~L October 2017

Page 2 of 64 Rev. 16 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 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 October 2017

Page 3 of 64 Rev. 16 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 October 2017

Page 4 of 64 Rev. 16 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.

October 2017

Page 5 of 64 Rev. 16 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 µCi/ml total activity concentration for all noble gases as specified in ODCMS 3.8.B.1. This October 2017

Page 6 of 64 Rev. 16 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:

µCi / mli Dilution Factor = i 10 x ECLi 1

µCi / mli = the activity of each identified gamma emitter in µCi/ml ECL i = 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 µCi/ml for noble gases.

October 2017

Page 7 of 64 Rev. 16 Determine the Maximum Permissible Release Rate with this Dilution Factor by:

. x 105 A x 20 Release Rate (gpm) =

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 = A i t Ci F i =1 where:

D = The cumulative dose commitment to the total body or any organ, , from liquid effluents for the total October 2017

Page 8 of 64 Rev. 16 m

time period t

=1 2, in mrem.

t = The length of the th time period over which Ci and F are 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 µCi/ml.

A i = 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-µCi. 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 October 2017

Page 9 of 64 Rev. 16 TABLE III.A.1 LIQUID EFFLUENT INGESTION DOSE FACTORS (DECAY CORRECTED)

A i DOSE FACTOR (MREM-ML PER HR-µCi)

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 October 2017

Page 10 of 64 Rev. 16 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.

October 2017

Page 11 of 64 Rev. 16 TABLE III.A.1 LIQUID EFFLUENT INGESTION DOSE FACTORS (DECAY CORRECTED)

A i DOSE FACTOR (MREM-ML PER HR-µCi)

LIVER 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 9.55E+04 1.04E+05 1.01E+05 CR-51 no data no data no data MN-54 5.15E+03 5.06E+03 4.03E+03 FE-55 5.62E+02 6.01E+02 6.33E+02 FE-59 2.96E+03 3.02E+03 2.73E+03 CO-57 2.74E+01 2.81E+01 2.86E+01 CO-58 1.16E+02 1.14E+02 1.04E+02 CO-60 3.35E+02 3.32E+02 3.07E+02 NI-63 2.66E+03 2.80E+03 2.99E+03 ZN-65 8.55E+04 8.46E+04 6.69E+04 SR-89 no data no data no data SR-90 no data no data no data Y-91M no data no data no data Y-93 no data no data no data NB-95 2.83E+02 2.84E+02 2.35E+02 NB-95M no data no data no data ZR-95 2.61E-01 2.50E-01 3.91E-01 ZR-97 3.40E-03 3.39E-03 5.82E-03 MO-99 1.53E+02 1.58E+02 2.23E+02 TC-99M 2.61E-03 2.57E-03 2.98E-03 RU-103 no data no data no data RU-105 no data no data no data AG-110M 3.58E+00 3.36E+00 5.30E+00 SN-113 no data no data no data TE-129M 4.74E+03 5.09E+03 5.02E+03 TE-131M 5.48E+02 5.77E+02 5.40E+02 TE-132 1.48E+03 1.53E+03 1.36E+03 SB-124 1.08E+00 1.03E+00 1.91E+00 SB-125 4.13E+01 3.96E-01 7.39E-01 I-131 3.25E+02 3.32E+02 4.16E+02 I-133 6.48E+01 6.66E+01 8.45E+01 I-135 5.52E+00 5.55E+00 1.63E+00 CS-134 8.25E+05 8.36E+05 7.06E+05 CS-136 1.36E+05 1.36E+05 1.13E+05 CS-137 6.07E+05 6.32E+05 5.75E+05 CS-138 2.10E-11 2.18E-11 2.01E-11 BA-139 1.22E-08 1.25E-08 2.17E-08 BA-140 7.00E-01 6.90E-01 1.11E+00 October 2017

Page 12 of 64 Rev. 16 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.

October 2017

Page 13 of 64 Rev. 16 TABLE III.A.1 LIQUID EFFLUENT INGESTION DOSE FACTORS (DECAY CORRECTED)

A i DOSE FACTOR (MREM-ML PER HR-µCi)

BONE RADIONUCLIDE ADULT TEEN CHILD H-3 no data no data no data NA-24 1.65E+02 1.70E+02 1.98E+02 P-32 2.38E+05 2.58E+05 3.35E+05 CR-51 no data no data no data MN-54 no data no data no data FE-55 8.12E+02 8.47E+02 1.19E+03 FE-59 1.26E+03 1.30E+03 1.68E+03 CO-57 no data no data no data CO-58 no data no data no data CO-60 no data no data no data NI-63 3.84E+04 3.97E+04 5.58E+04 ZN-65 2.69E+04 2.43E+04 2.51E+04 SR-89 3.08E+04 3.30E+04 5.19E+04 SR-90 7.67E+05 6.31E+05 6.78E+05 Y-91M 1.51E-11 1.61E-11 2.57E-11 Y-93 4.58E-02 4.90E-02 7.77E-02 NB-95 5.08E+02 5.12E+02 6.04E+02 NB-95M no data no data no data ZR-95 8.13E-01 7.94E-01 1.78E+00 ZR-97 1.69E-02 1.71E-02 4.03E-02 MO-99 no data no data no data TC-99M 9.24E-04 9.22E-04 1.52E-03 RU-103 8.30E+00 8.43E+00 1.55E+01 RU-105 1.66E-02 1.73E-02 3.29E-02 AG-110M 3.87E+00 3.55E+00 7.84E+00 SN-113 no data no data no data TE-129M 1.27E+04 1.37E+04 1.80E+04 TE-131M 1.12E+03 1.21E+03 1.56E+03 TE-132 2.29E+03 2.42E+03 3.07E+03 SB-124 5.72E+01 5.59E+01 1.47E+02 SB-125 3.69E+01 3.62E+01 9.59E+01 I-131 2.28E+02 2.38E+02 4.13E+02 I-133 3.72E+01 3.92E+01 6.84E+01 I-135 2.11E+00 2.16E+00 3.66E+00 CS-134 3.47E+05 3.55E+05 4.30E+05 CS-136 3.45E+04 3.46E+04 4.10E+04 CS-137 4.44E+05 4.75E+05 6.01E+05 CS-138 1.06E-11 1.14E-11 1.45E-11 BA-139 1.71E-05 1.77E-05 4.07E-05 BA-140 5.57E+02 5.63E+02 1.27E+03 October 2017

Page 14 of 64 Rev. 16 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.

October 2017

Page 15 of 64 Rev. 16 TABLE III.A.1 LIQUID EFFLUENT INGESTION DOSE FACTORS (DECAY CORRECTED)

A i DOSE FACTOR (MREM-ML PER HR-µCi)

KIDNEY 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 no data no data no data CR-51 3.28E-01 3.35E-01 2.57E-01 MN-54 1.53E+03 1.51E+03 1.13E+03 FE-55 no data no data no data FE-59 no data no data no data CO-57 no data no data no data CO-58 no data no data no data CO-60 no data no data no data NI-63 no data no data no data ZN-65 5.72E+04 5.41E+04 4.22E+04 SR-89 no data no data no data SR-90 no data no data no data Y-91M no data no data no data Y-93 no data no data no data NB-95 2.79E+02 2.75E+02 2.21E+02 NB-95M no data no data no data ZR-95 4.09E-01 3.68E-01 5.60E-01 ZR-97 5.14E-03 5.14E-03 8.35E-03 MO-99 3.46E+02 3.61E+02 4.77E+02 TC-99M 3.96E-02 3.83E-02 4.33E-02 RU-103 3.17E+01 2.97E+01 3.91E+01 RU-105 2.14E-01 2.18E-01 2.89E-01 AG-110M 7.04E+00 6.40E+00 9.86E+00 SN-113 no data no data no data TE-129M 5.31E+04 5.74E+04 5.29E+04 TE-131M 5.55E+03 6.01E+03 5.22E+03 TE-132 1.43E+04 1.47E+04 1.27E+04 SB-124 no data no data no data SB-125 no data no data no data I-131 5.57E+02 5.73E+02 6.82E+02 I-133 1.12E+02 1.16E+02 1.41E+02 I-135 8.86E+00 8.77E+00 1.01E+01 CS-134 2.67E+05 2.66E+05 2.19E+05 CS-136 7.57E+04 7.42E+04 6.00E+04 CS-137 2.06E+05 2.15E+05 1.87E+05 CS-138 1.54E-11 1.61E-11 1.41E-11 BA-139 1.14E-08 1.18E-08 1.90E-08 BA-140 2.38E-01 2.34E-01 3.62E-01 October 2017

Page 16 of 64 Rev. 16 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.

October 2017

Page 17 of 64 Rev. 16 TABLE III.A.1 LIQUID EFFLUENT INGESTION DOSE FACTORS (DECAY CORRECTED)

A i DOSE FACTOR (MREM-ML PER HR-µCi)

GI-LLI 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 1.73E+05 1.41E+05 5.98E+04 CR-51 3.74E+02 2.57E+02 8.98E+01 MN-54 1.58E+04 1.04E+04 3.38E+03 FE-55 3.22E+02 2.60E+02 1.17E+02 FE-59 9.90E+03 7.15E+03 2.84E+03 CO-57 6.94E+02 5.24E+02 2.34E+02 CO-58 2.35E+03 1.56E+03 6.04E+02 CO-60 6.30E+03 4.33E+03 1.70E+03 NI-63 5.56E+02 4.46E+02 2.01E+02 ZN-65 5.38E+04 3.58E+04 1.18E+04 SR-89 4.94E+03 3.93E+03 2.01E+03 SR-90 2.22E+04 1.77E+04 9.13E+03 Y-91M 4.44E-11 7.58E-10 5.03E-08 Y-93 1.45E+03 1.50E+03 1.18E+03 NB-95 1.72E+06 1.21E+06 4.35E+05 NB-95M no data no data no data ZR-95 8.27E+02 5.78E+02 4.08E+02 ZR-97 1.06E+03 9.19E+02 8.81E+02 MO-99 3.54E+02 2.82E+02 1.85E+02 TC-99M 1.54E+00 1.69E+00 1.69E+00 RU-103 9.69E+02 7.04E+02 4.01E+02 RU-105 1.01E+01 1.40E+01 2.15E+01 AG-110M 1.46E+03 9.43E+02 6.30E+02 SN-113 no data no data no data TE-129M 6.40E+04 5.15E+04 2.19E+04 TE-131M 5.44E+04 4.63E+04 2.19E+04 TE-132 7.02E+04 4.85E+04 1.37E+04 SB-124 1.62E+03 1.13E+03 9.19E+02 SB-125 4.07E+02 2.82E+02 2.29E+02 I-131 8.58E+01 6.57E+01 3.70E+01 I-133 5.82E+01 5.03E+01 3.40E+01 I-135 6.24E+00 6.16E+00 5.03E+00 CS-134 1.44E+04 1.04E+04 3.80E+03 CS-136 1.55E+04 1.09E+04 3.96E+03 CS-137 1.18E+04 9.00E+03 3.60E+03 CS-138 8.94E-17 9.90E-15 9.25E-12 BA-139 3.04E-05 1.58E-04 2.35E-03 BA-140 1.15E+03 8.69E+02 6.43E+02 October 2017

Page 18 of 64 Rev. 16 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.

October 2017

Page 19 of 64 Rev. 16 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 Q (

NS + K Q ) V Q N V DS = [L S ( Q) S

+ 11

.B ] NS +

Q [L V + 11

.M ] ( Q) V NV Q

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 µCi/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.

October 2017

Page 20 of 64 Rev. 16 IV.A.1.a (Cont'd)

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

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

( Q) V

= 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.

Q N 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 µCi/sec.

LV = 2.37 x 103 mrem/yr per µCi/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 µCi/m3; the skin dose factor due to beta emissions for Kr-87.

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

( Q) S

= 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 µCi/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 µCi/m3; the air dose factor due to gamma emissions for Kr-88.

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

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

October 2017

Page 21 of 64 Rev. 16 IV.A.1. b. Isotopic Analysis Method DT B = (V i

i ( )

QiS + K i Q V

iV Q )

DS = (L ( Q) i i S

+ 11 )

. Bi Q iS + (Li + 11 ( )

. Mi ) Q V Q iV 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

µCi/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 µCi/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 µCi/m3.

( Q) V

= 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.

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 µCi/sec.

October 2017

Page 22 of 64 Rev. 16 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 µCi/m3.

( Q) S

= 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 µCi/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 µCi/m3.

11

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

October 2017

Page 23 of 64 Rev. 15 TABLE IV.A.1 - Constants for Isotopic Analysis Method (corrected for decay during transit)

Plume-Air Total Body Skin Gamma Air Beta Air Plume-Body Dose Factor Dose Factor Dose Factor Dose Factor Dose Factor Dose Factor Bi Ki Li Mi Ni Vi Radionuclide (mrad/yr per (mrem/yr per (mrem/yr per (mrad/yr per (mrad/yr per (mrem/yr per

µCi/m3) µCi/m3) µCi/m3) µCi/m3) µCi/sec)

µCi/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.

October 2017

Page 24 of 64 Rev. 16 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.

[

D = Pi WS Q iS + WV Q iV + WV q iV 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 µCi/m3 WS = 1.03 X 10-7 sec/m3; the highest calculated annual average relative concentration for any area at or beyond the SITE BOUNDARY from stack releases. (SSE boundary)

Q iS = 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 µCi/sec.

WV = 4.78 X 10-7 sec/m3; the highest calculated annual average relative concentration for any area at or beyond the SITE BOUNDARY for all vent releases. (SSE boundary)

October 2017

Page 25 of 64 Rev. 16 IV.A.2. (Cont'd)

Q iV = 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 µCi/sec.

q iv = The release rate of radionuclide, i, in gaseous effluents from the auxiliary boiler stack releases, determined by the oil sampling and analysis program (ODCM Specification Table 4.8.C.1) in µCi/sec as calculated below:

Ci V x 3785 x Z

= T i

where:

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

CiV = activity concentration measured in oil for nuclide, i, in µCi/ml.

3785 = milliliters per gallon.

Z = gallons of oil consumed.

T = number of seconds used for release Method (a) 60 second Method (b) number of seconds used to burn oil for release.

October 2017

Page 26 of 64 Rev. 16 TABLE IV.A.2 Pi CONSTANTS FOR CRITICAL ORGAN FOR THE MOST RESTRICTIVE AGE GROUP (mrem/yr per µCi/m3)

INFANT INFANT CHILD TEENAGER RADIONUCLIDE THYROID LUNG DOSE THYROID LUNG DOSE DOSE FACTOR DOSE FACTOR FACTOR 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 October 2017

Page 27 of 64 Rev. 16 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 October 2017

Page 28 of 64 Rev. 16 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 = 317 [ ( )

. x 10 8 M Q V

~ ~

Q V + B QS ]

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.

. x 108 317 = years per second.

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

(Reg. Guide 1.109, Table B-1)

( Q) V

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

October 2017

Page 29 of 64 Rev. 16 IV.B.1. a (Cont'd)

B = 4.90 x 10-4 mrad/year per µCi/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 µCi. Releases shall be cumulative over the calendar quarter or year as appropriate.

b. Isotopic Analysis Method D = 317. x 10 8 [ M ( Q) i i V

~ ~

Q iV + Bi Q iS ]

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.

. x 108 317 = 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 µCi/m3.

( Q) V

= 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 µCi.

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

October 2017

Page 30 of 64 Rev. 16 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 µCi/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 µCi.

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

IV.B.2. for beta radiation:

a. Gross Release Method D = 317 [(

. x 10 8 N Q ) V

~

( )

QV + Q S

~

QS ]

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.

. x 108 317 = years per second.

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

(Reg. Guide 1.109, Table B-1)

( Q) V

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

October 2017

Page 31 of 64 Rev. 16

( Q) S

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

IV.B.2. b. Isotopic Analysis Method D = 317 . x 10 8 N [( Q) i i V

~

( )

QiV + Q S

~

QiS ]

. x 108 317 = 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 µCi/m3.

( Q) V

= 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 µCi.

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

( Q) S

= 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.

~

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

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

October 2017

Page 32 of 64 Rev. 16 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.

~

. x 10 8 Fe R i WS QiS + WV QiV + WV q iV

~ ~

D = 317 i

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.

. x 108 317 = 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 µCi/sec except tritium, carbon-14, and inhalation pathway, which is in mrem/yr per µCi/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.**

October 2017

Page 33 of 64 Rev. 16 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 µCi. Releases shall be cumulative over the calendar quarter or year, as appropriate.

WV ( )

= 1.58 x 10-9 meters-2 D Q for 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 µCi. Release shall be cumulative over the calendar quarter or year, as appropriate.

~

q iV = The release of radionuclide, i, in gaseous effluents from the auxiliary boiler stack releases, determined by the oil sampling and analysis program (ODCMS Table 4.8.C.1) in

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

October 2017

Page 34 of 64 Rev. 16 TABLE IV.C.1 Ri CONSTANTS INGESTION PATHWAY (m2 (mrem/yr) per µCi/sec)*

Radionuc Infant Bone Infant Infant Infant Kidney Infant Infant GI-LLI Infant Infant T Body lide Liver Thyroid Lung Skin 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 October 2017

Page 35 of 64 Rev. 16 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 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 µCi/m3 October 2017

Page 36 of 64 Rev. 16 TABLE IV.C.2 Ri CONSTANTS INHALATION PATHWAY (mrem/yr per µCi/m3)

Radionuclide Infant Bone Infant Liver Infant Infant Kidney Infant Lung Infant GI-LLI Infant Infant T Thyroid Skin 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 October 2017

Page 37 of 64 Rev. 16 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 October 2017

Page 38 of 64 Rev. 16 TABLE IV.C.3 Ri CONSTANTS GROUND PLANE PATHWAY (m2 (mrem/yr) per µCi/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 October 2017

Page 39 of 64 Rev. 16 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 October 2017

Page 40 of 64 Rev. 16 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 October 2017

Page 41 of 64 Rev. 16 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 The dose rate in areas at and beyond the SITE BOUNDARY due to radioactive materials released in gaseous effluents from the incineration of waste oil from the auxiliary boilers shall be calculated by the equation in IV.A.2.

The dose rate from radioactive particulate release shall be determined by either of two methods. Method (a), total instantaneous release assumes that the total activity contained in the waste oil is released in the first minute of incineration. Method (b) uses the activity release over the entire time of incineration.

For normal operations, it is assumed that Method (a) will be used, since the total activity from the waste oil is expected to contribute an insignificant dose compared to the annual limits. However, in the event that the activity is significantly higher than administrative or regulatory limits, then Method (b) would be used because it is more accurate in calculating the dose rate.

October 2017

Page 42 of 64 Rev. 16 Since the auxiliary boiler stacks are at approximately the same height as the reactor vents and discharge from the auxiliary boilers will also be heated, the use of the reactor vent D/Q value for the calculations is considered conservative.

IV.F.2 The dose to an individual from 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 from the incineration of contaminated waste oil from the auxiliary boiler stacks shall be calculated by the equation in IV.C.

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 TN-68 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.

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).

October 2017

Page 43 of 64 Rev. 16 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 + D + D 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).

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

DThy = D + D + D 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).

October 2017

Page 44 of 64 Rev. 16 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 Thy ) with the dosimeter net dose(mrem).

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

Total DWB = DWB + D D where:

Total DWB = 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.

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 DCO = DCO + DD where:

Total DCO = 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.

October 2017

Page 45 of 64 Rev. 16 Thyroid The cumulative thyroid dose from gas and direct radiation shall be determined by the following method:

Total DThy = DThy + DD where:

Total DThy = 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.

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.

The location within the SITE BOUNDARY that is accessible to MEMBERS OF THE PUBLIC for activities unrelated to the operation of Peach Bottom Atomic Power Station is the Vehicle Checkpoint, located 1300 ft N 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.

October 2017

Page 46 of 64 Rev. 16 TABLE VII.A-1 ODCM - Peach Bottom Atomic Power Station Radiological Environmental Monitoring Program 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 1P 2,200 feet ESE of site Conowingo Pond. These Distance sectors are monitored 15 19,300 feet N of site by stations on the 22 12,500 feet NNE of site east side of Conowingo 44 26,700 feet NE of site Pond. The 5 mile 32 14,400 feet ENE of site vicinity stations 45 18,500 feet ENE of site cover all sectors.

14 10,300 feet E of site 17 21,500 feet ESE of site The distant and 31A 24,100 feet SE of site special interest 4K 45,900 feet SE of site stations provide 23 5,500 feet SSE of site information in 27 14,400 feet S of site population centers and 48 26,500 feet SSW of site control locations.

October 2017

Page 47 of 64 Rev. 16 TABLE VII.A-1 ODCM - Peach Bottom Atomic Power Station Radiological Environmental Monitoring Program 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 43 26,200 feet NNE of site and 5 24,400 feet E of site Special 16 67,100 feet E of site Interest 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.

October 2017

Page 48 of 64 Rev. 16 TABLE VII.A-1 ODCM - Peach Bottom Atomic Power Station Radiological Environmental Monitoring Program Pathway Station Distance and Direction Collection Method Analyses Code from PBAPS Vents and Discussion of the highest annual average ground level Gross beta analysis D/Q near the site done 24 hr after boundary, the sampling to allow for community with the Radon and Thoron highest annual daughter decay.

average D/Q and a control location.

Gamma Spec on quarterly composite by location.

Iodine 1Z 1,500 feet SE of site A TEDA impregnated Iodine 131 weekly 1B 2,500 feet NW of site flow-through 1C 4,700 feet SSE of site cartridge is 3A 19,300 feet SW of site connected to air 5H2 C 162,400 feet NE of site sampler and is collected weekly at site filter change.

III. Waterborne Surface 1LL C 1,200 feet ENE of site Sample collected Gamma isotopic 1MM 5,500 feet SE of site from a continuous analysis monthly; water sampler, monthly. In event H-3 on quarterly October 2017

Page 49 of 64 Rev. 16 TABLE VII.A-1 ODCM - Peach Bottom Atomic Power Station Radiological Environmental Monitoring Program Pathway Station Distance and Direction Collection Method Analyses Code from PBAPS Vents and Discussion sampler is composite inoperable, grab samples will be collected each calendar day until sampler returned to service.

Drinking 4L 45,900 feet SE of site Sample collected Gross beta and gamma 6I C 30,500 feet NW of site from a continuous isotopic monthly, 13B 13,300 feet ESE of site water sampler monthly. In event H-3 on quarterly sampler is composite inoperable, weekly grab samples will be collected until sampler returned to service.

Sediment 4J 7,400 feet SE of site A sediment sample Gamma isotopic analysis is taken down each sample stream of discharge semi-annually.

IV. Ingestion Milk V C 32,600 feet W of site Sample of fresh I-131 analyses on each J 5,100 feet W of site milk is collected sample R 4,900 feet SW of site from each farm U 11,200 feet SSW of site biweekly when cows Gamma isotopic analysis X 9,200 feet NW of site are on pasture or Cs-134, Cs-137 by October 2017

Page 50 of 64 Rev. 16 TABLE VII.A-1 ODCM - Peach Bottom Atomic Power Station Radiological Environmental Monitoring Program Pathway Station Distance and Direction Collection Method Analyses Code from PBAPS Vents and Discussion (April through chemical separation October), monthly quarterly at other times.

Fish 4 6,000-10,000 feet SE Two species of Gamma isotopic analyses of site recreationally on edible portions.

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

Food 1C 4,700 feet SSE of site Samples of three Gamma isotopic and Products 55 C 51,900 feet NE of site (3) different I-131 analysis kinds of broad leaf vegetation monthly when available if milk sampling is not performed C = Control Location October 2017

Page 51 of 64 Rev. 16 FIGURE VII.A.1 ENVIRONMENTAL SAMPLING STATIONS AT SITE BOUNDARY AREA TO PEACH BOTTOM October 2017

Page 52 of 64 Rev. 16 FIGURE VII.A.2 ENVIRONMENTAL SAMPLING STATIONS AT INTERMEDIATE DISTANCES FROM PEACH BOTTOM SITE October 2017

Page 53 of 64 Rev. 16 FIGURE VII.A.3 ENVIRONMENTAL SAMPLING STATIONS AT REMOTE DISTANCES FROM PEACH BOTTOM SITE October 2017

Page 54 of 64 Rev. 16 Figure 1 October 20157

Page 55 of 64 Rev. 16 Figure 2 October 2017

Page 56 of 64 Rev. 16 Figure 3 October 2017

Page 57 of 64 Rev. 16 Figure 4 October 2017

Page 58 of 64 Rev. 16 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 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.

Ai = (U w Dw + U F x BFi )k 0 x DFi x RC x e 24 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 UF = kg per year; maximum age group usage of fish (Reg. Guide 1.109, Table E-5)

October 2017

Page 59 of 64 Rev. 16 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/µCi 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.

October 2017

Page 60 of 64 Rev. 16 NOTE 2 To develop constant R for the ingestion pathway in section IV.C, the following site specific data were used:

R C

( ) F ( r ) ( DFL ) f f + (1 f f ) e QF U ap

( D / Q) = K ' p s p s i t h e i t f i

+ m i Y Y i W p s where:

K' = 106 pCi/µCi; unit conversion factor QF = 50 kg/day; cow's consumption rate U ap = 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) fp = 0.6; the fraction of the year the cow is on pasture (average of all farms) fs = 0.487; the fraction 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 October 2017

Page 61 of 64 Rev. 16 tf = 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 NOTE 3 To develop constant R for tritium for the ingestion pathway in section IV.C, the following site specific data were used:

The concentration of tritium in milk is based on the airborne concentration rather than the deposition. The following additional constants and formula are used:

RHC 3 ( Q )=K 'K '"Fm QF U ap (DFLi )[0.75(0.5 / 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 NOTE 4 To develop constant R for C-14 for the ingestion pathway in section IV.C, the following site specific data were used:

14 = K K ' " p Fm Q F U ap DFLC 14 [0.11 / 0.16]

RCMilk 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.

October 2017

Page 62 of 64 Rev. 16 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.

October 2017

Page 63 of 64 Rev. 16 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.

October 2017

Page 64 of 64 Rev. 16 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.

October 2017

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