ML091250436

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Peach Bottom Units 2 & 3. Independent Spent Fuel Storage Installation, Radioactive Effluent Release Report No. 51, January 1, 2008 Through December 31, 2008
ML091250436
Person / Time
Site: Peach Bottom  Constellation icon.png
Issue date: 04/27/2009
From:
Exelon Generation Co, Exelon Nuclear
To:
Office of Nuclear Reactor Regulation
References
Download: ML091250436 (106)
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Text

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 NO. 51 JANUARY 1, 2008 THROUGH DECEMBER 31, 2008 Submitted to The United States Nuclear Regulatory Commission Pursuant to Facility Operating Licenses DPR-44 and DPR-56 (Page Intentionally Left Blank)

TABLE OF CONTENTS SECTION PAGE Introduction 1 Attachment 1 Supplemental Information 3 Regulatory Limits 5 Maximum Permissible Concentrations 6 Average Energy 6 Measurements and Approximations of Total Radioactivity 6 Batch Releases 8 Average Stream Flow 9 Abnormal Releases 9 Changes to ODCM 12 Minimum Detectable Concentrations 12 Violations 13 Attachment 2 Effluent Summary 15 Gaseous Effluents

-Summation of All Releases 17 Gaseous Effluents for Elevated Release Point -Main Stack 18 Gaseous Effluents for Ground Level Release Points -19 Unit 2 and Unit 3 Roof Vents & Aux Boiler Stack Liquid Effluents

-Summation of All Releases 20 Liquid Effluents Release Points -Liquid Radwaste, RHR Leaks 21 Attachment 3 Solid Waste and Irradiated Fuel Shipments Solid Waste Shipped Irradiated Fuel Shipments Changes to Process Control Program (PCP)Attachment 4 Radiological Impact on Man Radiological Impact on Man Summary of Gaseous and Liquid Annual Doses Liquid and Gaseous Effluent Radiation Monitors Attachment 5 Meteorological Data 23 25 27 27 29 31 31 31 33 93 101 Appendix A Appendix B ERRATA Data Section Revised copy of the ODCM Technical Concurrences: (for accuracy of information)

Chemistry

/ Radwaste aae Facility:

Peach Bottom Units 2 & 3 Licensee:

Exelon Generation Company, LLC PSEG Nuclear, LLC INTRODUCTION In accordance with the Reporting Requirements of Technical Specification 5.6.3 applicable during the reporting period, this report summarizes the Effluent Release Data for Peach Bottom Atomic Power Station Units 2 and 3 for the period January 1, 2008 through December 31, 2008. 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 limits.There were five unplanned releases of liquid radioactive material.

Three releases were from RHR heat exchangers, one was from a groundwater tritium plume and one was from the U2 Yard Drain Sump.There were no gaseous or liquid radioactive releases from the Independent Spent Fuel Storage Installation, NRC Docket No. 72-29 (ISFSI).There were changes made to RW-AA-1 00 "Process Control Program for Radioactive Waste" in 2008. All changes made were administrative and the changes did not reduce the overall conformance of solidified waste product to the existing criteria for solid wastes.There were changes made to the ODCM during the 2008 reporting period. A copy of the revised report is attached with this document and included as Appendix B. Each change is identified by markings in the margin of affected pages, indicating the area of the page that was change and the date (month/year) the change was implemented.

Exelon common procedures, which provide consistent expectations and standards for Radioactive Effluents Controls Program, were used to generate this report. They are:* CY-AA-1 70-000, 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

Peach Bottom Units 2 & 3 Licensee:

Exelon Generation Company, LLC PSEG Nuclear, LLC , (Page Intentionally.

Left Blank)2 Facility:

Peach Bottom Units 2 & 3 Licensee:

Exelon Generation Company, LLC PSEG Nuclear, LLC Attachment 1 Supplemental Information 3

Facility:

Peach Bottom Units 2 & 3 Licensee:

Exelon Generation Company, LLC PSEG Nuclear, LLC (Page Intentionally Left Blank)4 Facility:

Peach Bottom Units 2 & 3 Licensee:

Exelon Generation Company, LLC PSEG Nuclear, LLC 1. Regulatory Limits A. Noble Gases: 1. < 500< 3000 mRem/Yr mRem/Yr 2. <10<20 3. <20<40 mRad mRad mRad mRad-total body-skin-air gamma-air beta-air gamma-air beta ODCMS 3.8.C.1.a quarterly air dose limits ODCMS 3.8.C.2.a and b yearly air dose limits ODCMS 3.8.C.2.c and d B. lodines, Tritium, Particulates with Half Life >8 days-1. <1500 mRem/Yr 2. <15 mRem 3. <30 mRem-any organ-any organ-any organ C. Liquid Effluents 1. Concentration

< 10 times 10 CFR 20, Appendix B, Table 2, Col. 2 ODCMS 3.8.C.1.b quarterly dose limits ODCMS 3.8.C.3.a yearly dose limits ODCMS 3.8.C.3.b ODCMS 3.8.B.1 .a quarterly dose limits ODCMS 3.8.B.2.a yearly dose limits ODCMS 3.8.B.2.b 2. 3.010 3. <6.0< 20 mRem mRem mRem mRem-total body-any organ-total body-any organ D. 40 CFR 190 and 10 CFR 72.104 25:S 75* 25<*3.0 mRem mRem mRem mRem-total body-thyroid-any other organ-from liquid and gaseous effluent-thyroid from gases ODCMS ODCMS ODCMS ODCMS 3.8.D.1.a 3.8.D.1 .b 3.8.D.1.c 3.8.D.1 .d< 55 mRem ODCMS 3.8.D.1 .e 5 Facility:

Peach Bottom Units 2 & 3 Licensee:

Exelon Generation Company, LLC PSEG Nuclear, LLC 2. 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.la.

and 3.8.C.1 .b.The Effluent Concentrations Limits (ECL) specified in 10 CFR 20, Appendix B, Table 2, Column 2 times 10, for identified nuclides, are used to calculate permissible release rates and concentrations for liquid release per Peach Bottom Offsite Dose Calculation Manual Specification 3.8.B.1.The total activity concentration for all dissolved or entrained gases is limited to< 2E-04 tCi/ml.3. Average Energy: The Peach Bottom 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, "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 Peach Bottom.4. Measurements and Approximations of Total Radioactivity:

A. Fission and Activation Gases: The method used for Gamma Isotopic Analysis is the Canberra Genie System with a gas Marinelli beaker. Grab samples are taken and analyzed at least monthly to determine the isotopic mixture of noble gas activity released for the month. 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 was analyzed to report noble gas effluent activities.

When no activity was found in the grab isotopic analysis, the isotopic mixture was assumed to be that specified in ODCM IV.B. 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.B. lodines: 6 Facility:

Peach Bottom Units 2 & 3 Licensee:

Exelon Generation Company, LLC PSEG Nuclear, LLC The method used is the Canberra Genie System with a charcoal cartridge.

Iodine activity was continuously sampled and analyzed in accordance with ODCMS Table 4.8.C.1.C. Particulates:

The method used is the Canberra Genie System with a particulate filter (47 mm).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 analysis of Sr-89, Sr-90 and gross alpha.D. Liquid Effluents:

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

Composite liquid radwaste samples counted for tritium and submitted to an offsite vendor laboratory for analysis of Fe-55, P-32, Sr-89, Sr-90 and gross alpha.E. Estimated 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.

7 Facility:

Peach Bottom Units 2 & 3 Licensee:

Exelon Generation Company, LLC PSEG Nuclear, LLC 5. Batch Releases: A. Liquid: OTR 1 QTR 2 QTR 3 QTR 4 Number of batch releases:

6 5 2 3 Total Time for batch releases (minutes) 468 431 132 354 Maximum time period for batch release 125 110 82 260 (minutes):

Average time period for batch release 78 86 66 118 (minutes):

Minimum time period for batch release 38 62 50 40 (minutes):

Dilution volume (liters):

1.38E+12 2.21E+12 2.79E+12 2.36E+12 B. Gaseous: QTR 1 QTR 2 QTR 3 QTR 4 Number of batch releases:

0 0 0 0 Total Time for batch releases (minutes) 0 0 0 0 Maximum time period for batch release 0 0 0 0 (minutes):

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

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

8 Facility:

Peach Bottom Units 2 & 3 Licensee:

Exelon Generation Company; LLC PSEG Nuclear, LLC 6. Average Stream Flow: The river flow is not used for dose calculations.

The actual discharge of circulating water is used for liquid dose calculations.

The circulating water varies from 675,000 gpm in the winter to 1,350,000 gpm in the summer.7. Abnormal Releases:

Five abnormal release sources A. Liquid: 1. Event description

-2C Residual Heat Removal (RHR) to High Pressure Service Water (HPSW) leak On 08/01/2005, routine sampling of the HPSW effluent to the discharge canal detected low-level radioactive contamination.

Subsequent investigation determined that a trace amount of condensate stay-full or primary coolant water was leaking through the Unit 2C RHR heat exchanger into the 2A loop of the HPSW system. The 2C RHR continued to be a source of contamination to the end of 2008. The leak rate range was 0.0438 GPM from January decreasing to 0.0002 GPM throughout the end of the year.Analysis of Releases It was estimated that the contaminated water released to the discharge canal for all of 2008 was responsible for 2.94E-03 mRem total body dose (Adult), and 8.19E-03 mRem Critical Organ (Adult GI-LLI) dose. This dose contribution was well below the limits specified in the ODCM.Samples were analyzed for all the parameters of radioactive effluent releases.

Composite liquid radwaste samples counted for tritium and submitted to an offsite vendor laboratory for analysis of Fe-55, P-32, Sr-89, Sr-90 and gross alpha. The maximum concentration from several analyses was used to ensure conservative measures of activity released.The dose contributions and isotope quantities from the releases were added to this Radioactive Effluent Release Report for the applicable reporting periods.2. Event description

-2D Residual Heat Removal (RHR) to High Pressure Service Water (HPSW) leak On 10/07/2005, routine sampling of.the HPSW effluent to the discharge canal detected low-level radioactive contamination.

Subsequent investigation determined that a trace amount of condensate stay-full or primary coolant 9 Facility:

Peach Bottom Units 2 & 3 Licensee:

Exelon Generation Company, LLC PSEG Nuclear, LLC water was leaking through the Unit 2D RHR heat exchanger into the 2B loop of the HPSW system. The 2D RHR continued to be a source of contamination to the beginning of 2008. The leak rate calculated was 0.0802 gpm to end of January. The 2D RHR heat exchanger was repaired on February 1, 2008.Analysis of Releases It was estimated that the contaminated water released to the discharge canal for all of 2008 was responsible 3.76E-04 mRem total body dose (Adult), and 8.91 E-04 mRem Critical Organ (Adult GI-LLI) dose. This dose contribution was well below the limits specified in the ODCM.Samples were analyzed for all the parameters of radioactive effluent releases.

Composite liquid radwaste samples counted for tritium and submitted to an offsite vendor laboratory for analysis of Fe-55, P-32, Sr-89, Sr-90 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.3. Event description

-3A Residual Heat Removal (RHR) to High Pressure Service Water (HPSW) leak On 04/08/2008, routine sampling of the HPSW effluent to the discharge canal detected low-level radioactive contamination.

Subsequent investigation determined that a trace amount of condensate stay-full or primary coolant water was leaking through the Unit 3A RHR heat exchanger into the 3A loop of the HPSW system. The 3A RHR continued to be a source of contamination to the end of 2008. The leak rate range was 0.0642 GPM from January decreasing to 0.0035 GPM throughout the end of the year.Analysis of Releases It was estimated that the contaminated water released to the discharge canal for all of 2008 was responsible 9.88E-04 mRem total body dose (Adult), and 7.34E-04 mRem Critical Organ (Adult GI-LLI) dose. This dose contribution was well below the limits specified in the ODCM.Samples were analyzed for all the parameters of radioactive effluent releases.

Composite liquid radwaste samples counted for tritium and submitted to an offsite vendor laboratory for analysis of Fe-55, P-32, Sr-89, Sr-90 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.10 Facility:

Peach Bottom Units 2 & 3 Licensee:

Exelon Generation Company, LLC PSEG Nuclear, LLC 4. Event description

-U2 Yard Drain Sump On January 2, 2008, routine sampling of the Unit 2 Yard Drain Sump showed no gamma activity and was released to the discharge canal. The gamma analysis showed no activity but the tritium was measured to be 1.26E-06 uCi/ml. This tritium was assumed to be the concentration of the January 8, 2008 release.Analysis of Release It was estimated that the contaminated water released to the discharge canal at a rate of 23 gpm. With the maximum concentration 1.26E-6 uCi/mL, the water released was responsible for 5.92E-07 total body dose, and 5.92E-07 mRem Critical Organ (Child Liver) dose. This dose contribution was well below the limits specified in the ODCM.Representative samples were analyzed for gamma activity and tritium.The dose contributions and isotope quantities from the releases were added to this Radioactive Effluent Release Report for the applicable reporting periods.5. Event description

-Ground Water Plume During 2008, 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 discharge into the intake or discharge canal. The highest concentration of tritium was 6.95E-6 uCi/ml. This concentration was assumed to be the concentration of all the ground water that discharged to the discharge canal.Analysis of Releases It was estimated that the ground water flowed to the discharge canal at a rate of 175 gpm. With the maximum concentration of 6.95E-06 uCi/ml, the ground water released to the discharge canal was responsible for 1.56E-05 mRem total body dose (Child), and 1.56E-05 mRem Critical Organ dose (Child). This dose contribution was well below the limits specified in the ODCM.11 Facility:

Peach Bottom Units 2 & 3 Licensee:

Exelon Generation Company, LLC PSEG Nuclear, LLC B. Gaseous: No abnormal releases.8. Changes to the ODCM: A revised copy of the ODCM is attached as Appendix B of this document for the 2008 reporting period. Each change is identified by markings in the margin of affected pages, indicating the area of the page that was changed and the date (month/year) the change was implemented.

9. Minimum Detectable Concentrations:

A. Liquid: If a radionuclide was not detected, < LLD was reported for that isotope. Samples were analyzed with techniques that achieved the required Lower Limits of Detection (LLD) as specified in Offsite Dose Calculation Manual Specification Table 4.8.B.1, Radioactive Liquid Waste Sampling and Analysis.

In all cases, the LLD requirements were satisfied.

B. Gaseous: If a radionuclide was not detected, < LLD was reported for that isotope. Samples were analyzed with techniques which achieved the required Lower Limits of Detection (LLD) as specified in Offsite Dose Calculation Manual Specification Table 4.8.C.1, Radioactive Gaseous Waste Sampling and Analysis from Main Stack and Vent Stack. In all cases, the LLD requirements were satisfied.

12 Facility:

Peach Bottom Units 2 & 3 Licensee:

Exelon Generation Company, LLC PSEG Nuclear, LLC 10. Violations:

A. On September 26, 2008 the Main Stack Flow dropped to less than 10,000 CFM due to the unexpected loss of the E324 MCC feeder breaker at the Main Stack (E324-O-A) and the need to perform the El 2 Bus Local Loop Test. This did not comply with ODCM 3.8.C.4.D.

Total duration of the non compliance was 2 hrs 53 minutes.13 Facility:

Peach Bottom Units 2 & 3 Licensee:

Exelon Generation Company, LLC PSEG Nuclear, LLC (Page Intentionally Left Blank)14 Facility:

Peach Bottom Units 2 & 3 Licensee:

Exelon Generation Company, LLC PSEG Nuclear, LLC Attachment 2 Effluent Summary 15 Facility:

Peach Bottom Units 2 & 3 Licensee:

Exelon Generation Company, LLC PSEG Nuclear, LLC (Page Intentionally Left Blank)16 Facility:

Peach Bottom Units 2 & 3 Licensee:

Exelon Generation Company, LLC PSEG Nuclear, LLC Attachment 2 Gaseous Effluents

-Summation Of All Releases Period: 2008 Unit: Peach Bottom Units 2 & 3 A. Fission & Activation Gases Quarter Quarter Quarter Quarter Est. Total 1 2 3 4 Error %1. Total Release Ci 1.61 E+02 2.11 E+02 1.61 E+02 7.39E+01 3.51E+01 2. Average release rate for the period pCi/sec 2.04E+01 2.68E+01 2.04E+01 9.38E+00 3. Percent of ODCM limit -Gamma 1.26E-01 1.73E-01 6.93E-02 8.13E-02-Beta I 4.49E-02 6.18E-02 2.58E-02 2.86E-02 4. Quarterly Gamma Dose mrad 1.26E-02 1.73E-02 6.93E-03 8.1 3E-03 5. Quarterly Beta Dose mrad 8.98E-03 1.24E-02 5.16E-03 5.72E-03 B. Iodine 1. Total iodine- 131 Ci 1.19E-03 1.72E-03 2.83E-03 8.03E-04 1.76E+01 2. Average release rate for period jPci/sec 1.51 E-04 2.18E-04 3.59E-04 1.02E-04j 3. Percent of ODCM limit % .. ..C. Particulates

1. Particulates with half-lives

> 8 days Ci 6.81 E-03 1.05E-02 1.17E-02 4.13E-03 1.94E+O1 2. Average release rate for the period pCi/sec 8.64E-04 1.33E-03 1.48E-03 5.24E-04 3. Percent of ODCM limit % *....3. Gross alpha radioactivity Ci <LLD <LLD <LLD <LLD D. Tritium 1. Total release Ci 1.35E+01 <LLD 2.28E+01 I 6.95E+00]

1.11 E+01 2. Averaae release rate for the period pCi/seci 1.71 E+00<LLD I 2.89E+00 I 8.82E-01 3. Percent of ODCM limit % ....E. Iodine 131 & 133,Tritium

& Particulate

1. Percent of ODCM limit % 1.36E-02 5.74E+00 2.86E+00 5.04E-01 2. Quarterly Dose mrem 2.04E-03 8.61E-01 4.29E-01 7.56E-02* Limit is no longer applicable to iodine and particulate.

Section E provides limit.17 Facility:

Peach Bottom Units 2 & 3 Licensee:

Exelon Generation Company, LLC PSEG Nuclear, LLC Attachment 2 Gaseous Effluents for Elevated Release Point -Main Stack Period: 2008 Unit: Peach Bottom Units 2 & 3 INUCLIDES RELEASED CONTINUOUS MODE BATCH MODE~1. Fission gasesI Unit Quarter Quarter Quarter 1_Quarter Quarter Quarter Quarter Q 1 2 3 4 1 2 3 4 Ar-41 Ci <LLD 7.50E-01 6.03E-01 1.59E-01 <LLD <LLD <LLD <LLD Kr-85m Ci 2.45E+01 2.98E+01 2.91 E+01 9.35E+00 <LLD <LLD <LLD <LLD Kr-87 Ci 1.01E+00 1.49E+00 1.05E+00 1.29E-01 <LLD <LLD <LLD <LLD Kr-88 Ci 1.71 E+01 2.23E+01 2.32E+01 1.31 E+00 <LLD <LLD <LLD <LLD Xe-1 33 Ci 5.45E+01 6.38E+01 7.13E+01 1.92E+01 <LLD <LLD <LLD <LLD Xe-135m Ci 4.51E-01 6.39E-01 <LLD 9.64E-01 <LLD <LLD <LLD <LLD Xe-135 Ci 8.03E+00 2.30E+00 1.81E+00 3.1OE+00 <LLD <LLD <LLD <LLD Xe-138 Ci 7.81E+00 2.46E+01 8.90E+00 8.38E+00 <LLD <LLD <LLD <LLD Unidentified Ci <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD Total for Period Ci 1.13E+02 1.46E+02 1.36E+02 4.26E+01 <LLD <LLD <LLD <LLD 12. lodines IL __1-131 Ci 3.90E-04 3.91E-04 4.95E-04 1.88E-04 <LLD <LLD <LLD <LLD 1-133 Ci 8.93E-04 1.07E-03 1.47E-03 3.08E-04 <LLD <LLD <LLD <LLD 1-135 Ci 2.16E-04 1.90E-04 5.23E-04 <LLD <LLD <LLD <LLD <LLD Total for Period Ci 1.50E-03 1.65E-03 2.49E-03 4.96E-04 <LLD <LLD <LLD <LLD[3. Particulates Ci <LL1 <LL LLD 813E-0 < <LLD <LLD <L Cr-5i &i <LLD <LLD <LLD 8.13E-06 <LLD <LLD <LLD <LLD Mn-54 Ci <LLD <LLD 9.14E-07 8.36E-07 <LLD <LLD <LLD <LLD Co-58 Ci 3.03E-07 <LLD <LLD <LLD <LLD <LLD <LLD <LLD Co-60 Ci 3.38E-06 9.59E-06 1.43E-05 9.46E-06 <LLD <LLD <LLD <LLD Zn-65 Ci <LLD <LLD 3.22E-06 <LLD <LLD <LLD <LLD <LLD Sr-89 Ci 6.66E-04 5.88E-04 2.56E-04 6.87E-05 <LLD <LLD <LLD <LLD Sr-90 Ci 2.62E-06 2.66E-06 6.OOE-07 8.19E-07 <LLD <LLD <LLD <LLD Cs-137 Ci 1.01E-05 5.64E-06 1.44E-06 1.24E-06 <LLD <LLD <LLD <LLD Ba-1 40 Ci 1.02E-03 6.76E-04 2.33E-04 3.14E-04 <LLD <LLD <LLD <LLD Ce-141 Ci 5.57E-07 <LLD <LLD <LLD <LLD <LLD <LLD <LLD Am-241 Ci <LLD <LLD <LLD 5.63E-07 <LLD <LLD <LLD <LLD Total for Period Ci 1.70E-03 1.28E-03 5.09E-04 4.04E-04 <LLD <LLD <LLD <LLD 18 Facility:

Peach Bottom Units 2 & 3 Licensee:

Exelon Generation Company, LLC PSEG Nuclear, LLC Attachment 2 Gaseous Effluents Ground Level Release Point -Unit 2 & 3 Roof Vents & Aux Boiler Stack Period: 2008 Unit: Peach Bottom Units 2 & 3[Nuclides Released ___Continuous Mode------

II Batch Mode ___.Fission gases Unit D Quarter Quarter Quarter Quarter Quarter Quarterj Quarter, Quarter4 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-1 35 Ci <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD Xe-135m Ci <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD Xe-1 38 Ci <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD Ar-41 Ci <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD Xe-1 33m Ci <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD Unidentified Ci 4.77E+01 6.54E+01 2.51E+01 3.13E+O I <LLD <LLD <LLD <LLD Total for Period Ci 4.77E+01 6.54E+01 2.51E+01 3.13E+01 <LLD <LLD <LLD <LLD[2. lodines ~____ K: _ ________7-131 JCi 8.04E-04 1.33E-03 2.34E-03 6.15E-04 <LLD <LLD <LLD <LLD 1-133 0 2.65E-03 6.05E-03 6.25E-03 2.58E-03 <LLD <LLD <LLD <LLD 1_-135 III <LLD <LED <LLD <L <LLD <LLD <LLD <LLD Total for Period JCi L3.45E-03 7.38E-03 8.59E-03 3.20E-03 <LLD <LLD <LLD <LLD~3. Particulates__

_F ---- T K_____IZ -~ ____Co-60 Ci <LLD 1.06E-05 <LLD 1.41 E-05 <LLD <LLD <LLD <LLDýSr-89 Ci 1.11E-04 9.58E-05 1.13E-04 1.91E-05 <LLD <LLD <LLD <LLD Ba-140 Ci 5.19E-05 6.06E-05 <LLD <LLD <LLD <LLD <LLD <LLD La-140 Ci <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD Cr-51 Ci <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD Mn-54 Ci <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD Co-58 Ci <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD Co-60 Ci <LLD <LLD <LLD <LLD <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 <LLD <LLD <LLD <LLD <LLD Sr-90 Ci <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD 0 Ci <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD Ci T Ci I Ci Total for Period ICi I1.63E-0411.67E-0411.13E-041 3.33E-051

<LLD I<LLD <LLD <LLD 19 Facility:

Peach Bottom Units 2 & 3 Licensee:

Exelon Generation Company, LLC PSEG Nuclear, LLC Liquid Effluents

-Summation Of All Releases Period: 2008 Unit: Peach Bottom Units 2 & 3 A. FISSION & ACTIVATION PRODUCTS Unit Quarter Quarter Quarter Quarter Est. Total 1 2 3 4 Error %1. Total Release (not including tritium, gases& alpha) Ci 1.33E-01 1.11E-02 3.OOE-02 8.04E-02 2.11E+01 2. Average diluted concentration during batch discharges for the period pCi/mL 9.64E-11 5.03E-12 1.08E-11 3.41E-11 4. Percent of ODCM limit -Whole Body 8.43E-02 8.53E-03 1.57E-02 3.45E-021-Organ E5 5.96E-02 3.16E-03 9.08E-03 2.54E-021 B. TRITIUM 1. Total Release Ci 7.46E-01 3.24E-01 7.21 E-01 1.01 E+00 6.40E+00 2. Average diluted concentration during batch discharges for the period pCi/mL 5.42E-10 1.46E-10 2.59E-10 4.29E-1 0 4. Percent of 10 CFR 20 limit % 5.42E-05 1.46E-05 2.59E-05 4.29E-05 C. DISSOLVED

& ENTRAINED GASES 1. Total Release Ci 3.46E-04 1.77E-04 2.06E-04 4.42E-04 2.11E+01 2. Average diluted concentration during batch discharges for the period pCi/mL 2.51E-13 8.OOE-14 7.40E-14 1.87E-13 4. Percent of ODCM limit % 1.26E-07 4.OOE-08 3.70E-08 9.35E-08 D. GROSS ALPHA ACTIVITY 1. Total release Ci 4.32E-05[

3.12E-06 4.14E-06 6.89E-06 2.30E+01 E. VOLUME OF WASTE RELEASED (prior 1 to dilution)

Liters I 6.96E+071 9.35E+071 1.28E+081 9.94E+071 5.OOE+00l F. VOLUME OF DILUTION WATER USED 20 Facility:

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Exelon Generation Company, LLC PSEG Nuclear, LLC Attachment 2 Liquid Effluents Release Point -Liquid Radwaste & RHR Leaks Period: 2008 Unit: Peach Bottom Units 2 & 3 INUCLIDES RELEASED CONTINUOUS MODE BATCH MODE 1. Fission gases Unit , Quarter Quarter Quarter Qua 1 rter f[Quarter Quarter Quarter Quarter 11 1 1 2 1 3 _4 1 2 3 -4 Y-92 Ci <LLD 9.24E-05 2.83E-04 2.83E-04 <LLD <LLD <LLD <LLD Co-58 Ci 4.98E-03 3.79E-05 5.71 E-05 7.89E-04 <LLD <LLD <LLD <LLD CO-60 Ci 5.86E-02 8.33E-03 2.50E-02 6.13E-02 4.02E-07 <LLD <LLD 1.74E-07 Cr-51 Q 2.12E-02 <LLD <LLD 7.91 E-03 <LLD <LLD <LLD <LLD Fe-55 Ci 6.46E-03 1.50E-04 2.28E-04 3.90E-04 <LLD <LLD <LLD <LLD Fe-59 Ci 5.15E-03 1.23E-05 1.25E-05 6.22E-04 <LLD <LLD <LLD <LLD 1-131 Ci <LLD 2.52E-06 7.73E-06 7.73E-06 <LLD <LLD <LLD <LLD Mn-54 Ci 2.80E-02 2.11 E-03 3.46E-03 6.76E-03 <LLD <LLD <LLD <LLD Nb-95 Ci 4.51 E-04 <LLD <LLD 6.99E-05 <LLD <LLD <LLD <LLD Nb-97 Ci <LLD <LLD <LLD 1.61E-05 <LLD <LLD <LLD <LLD Sr-89 i 3.92E-06 <LLD <LLD <LLD <LLD <LLD <LLD <LLD Sr-90 Ci 3.15E-06 <LLD <LLD <LLD <LLD 5.47E-07 <LLD <LLD Y-91m Ci <LLD <LLD <LLD 1.16E-05 <LLD <LLD <LLD <LLD Zn-65 Ci 6.96E-03 1.39E-04 5.43E-04 1.44E-03 <LLD <LLD <LLD <LLD Zr-95 Ci <LLD <LLD <LLD 8.22E-05 <LLD <LLD <LLD <LLD Ba-139 Ci <LLD <LLD <LLD 2.1OE-05 <LLD <LLD <LLD <LLD Cs-134 Ci <LLD 2.04E-05 3.08E-05 6.76E-05 3.72E-07 1.19E-06 2.27E-07 4.13E-07 CS-137 Ci 4.57E-04 1.18E-04 1.68E-04 2.91E-04 1.82E-06 2.95E-06 1.01E-06 3.43E-06 Cs-138 Ci 4.47E-04 1.19E-04 1.81E-04 2.31E-04 <LLD <LLD <LLD <LLD Hf-181 Ci <LLD <LLD <LLD 5.73E-05 <LLD <LLD <LLD <LLD La-142 Ci <LLD <LLD 2.72E-05 4.11E-05 <LLD <LLD <LLD <LLD Sb-124 Ci <LLD <LLD <LLD 7.40E-05 <LLD <LLD <LLD <LLD Ag-110m Ci <LLD <LLD <LLD 1.23E-05 <LLD <LLD <LLD <LLD Tritium Ci 7.46E-01 3.23E-01 7.21E-01 8.11E-01 <LLD 2.91E-04 7.16E-05 2.03E-01[Total for Period I[&i 1J8.79E-01 I 3.35E-01 17.51 E-01 8.91 E-01 J 2.59E-061 2.96E-04 7.28E-05 2.03E-01 Kr-87 Ci 1.87E-04 9.18E-05 1.07E-04 1.37E-04 <LLD <LLD <LLD <LLD Xe-133 Ci <LLD 2.98E-05 3.47E-05 5.13E-05 <LLD <LLD <LLD 1.40E-05 Xe-135 Ci <LLD 8.40E-06 <LLD <LLD <LLD <LLD <LLD <LLD Xe-131m Ci <LLD <LLD <LLD 1.57E-04 <LLD <LLD <LLD <LLD Xe-1 35m Ci 1.60E-04 4.69E-05 6.44E-05 8.23E-05 <LLD <LLD <LLD <LLD Total for Period Ii1I3.46E-04 1.77E-041 2.06E-0414.27E-04

<LLD I <LLD I <LLD I1.40E-051 21 Facility:

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Exelon Generation Company, LLC PSEG Nuclear, LLC (Page Intentionally Left Blank)22 Facility:

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Exelon Generation Company, LLC PSEG Nuclear, LLC Attachment 3 Solid Waste and Irradiated Fuel Shipments 23 Facility:

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Exelon Generation Company, LLC PSEG Nuclear, LLC (Page Intentionally Left Blank)24 Facility:

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Exelon Generation Company, LLC PSEG Nuclear, LLC A. SOLID WASTE SHIPPED OF SITE FOR BURIAL OR DISPOSAL (Not irradiated fuel) 01-01-2008-12-31-2008

1. Type of Waste units 2008 Est. error %a: spent resin, filters, sludges, evaporator bottoms, etc M3 9.20E+01 Ci 1.19E+03 25 b: dry compressible waste, contaminated equipment, etc. M3 1.28E+03 Ci 4.66E+00 25 c: Irradiated components, control rods, etc. M3 9.61 E-01 Ci 1.78E+04 25 d: Other (describe) oil M3 3.14E+01 Ci 1.63E-02 25 2. Estimate of major nuclide composition (by type of waste)a: spent resin, filters, slud es, evaporator bottoms, etc abundance nuclide (no cutoff) activity (Ci)H-3 0.012% 1.43E-01 Cr-51 0.000% 3.29E-03 Mn-54 9.024% 1.07E+02 Fe-55 34.781% 4.14E+02 Fe-59 0.000% 3.84E-03 Co-58 0.002% 2.75E-02 Co-60 48.893% 5.82E+02 Ni-63 0.728% 8.67E+00 Zn-65 3.056% 3.64E+01 Nb-95 0.000% 9.02E-04 Cs-134 0.272% 3.23E+00 Cs-1 37 1.737% 2.07E+01 Ce-141 0.000% 3.01E-04 Ce-144 0.267% 3.18E+00 Pu-238 0.000% 3.80E-03 Pu-241 0.028% 3.36E-01 Cm-242 0.000% 8.25E-04 Cm-243 0.000% 3.75E-05 C-14 0.087% 1.03E+00 Sr-89 0.001% 8.35E-03 Sr-90 0.146% 1.74E+00 Nb-97 0.000% 2.46E-75 Tc-99 0.083% 9.92E-01 Ru-106 0.001% 1.50E-02 Ag-110m 0.879% 1.05E+01 Sb-122 0.000% 1.38E-45 Sb-124 0.000% 6.43E-04 Te-129m 0.000% 2.35E-03 1-131 0.000% 9.26E-10 Ba-1 40 0.000% 5.73E-07 La-140 0.000% 2.95E-38 Pr-144 0.000% 3.25E-87 Hf-1 75 0.000% 2.99E-06 Hf-181 0.000% 5.88E-07 Pt-191 0.000% 5.92E-24 Pu-239 0.000% 6.86E-04 Am-241 0.000% 3.27E-03 Cm-244 0.000% 3.61 E-03 Totals 100.00% 1.19E+03 25 Facility:

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Exelon Generation Company, LLC PSEG Nuclear, LLC b cornressible waste, contaminated equipment, etc.abundance (no nuclide cutoff) activity (Ci)H-3 0.020% 9.37E-04 Cr-51 0.103% 4.80E-03 Mn-54 5.068% 2.37E-01 Fe-55 29.181% 1.36E+00 Fe-59 0.048% 2.23E-03 Co-58 0.125% 5.86E-03 Co-60 58.604% 2.73E+00 Ni-63 1.582% 7.38E-02 Zn-65 1.654% 7.72E-02 Nb-95 0.025% 1.17E-03 Cs- 134 0.277% 1.29E-02 Cs- 137 2.656% 1.24E-01 Ce-141 0.002% 8.36E-05 Ce-144 0.216% 1.01 E-02 Pu-238 0.000% 8.59E-06 Pu-241 0.330% 1.54E-02 Cm-242 0.000% 6.1OE-06 Cm-243 0.000% 1.31 E-06 C-14 0.076% 3.57E-03 Sr-89 0.001% 5.61E-05 Sr-90 0.013% 5.97E-04 Tc-99 0.006% 2.79E-04 Ag-11 Om 0.010% 4.75E-04 Pu-239 0.001% 6.75E-05 Am-241 0.000% 2.40E-06 Cm-244 0.000% 8.13E-06 Totals 100.00% 4.66E+00 c: Irradiated components, control rods, etc.abundance (no nuclide cutoff) activit Ci H-3 0.003% 5.17E-01 Mn-54 1.393% 2.47E+02 Fe-55 52.742% 9.36E+03 Fe-59 0.000% 1.67E-09 Co-58 0.026% 4.60E+00 Co-60 40.399% 7.17E+03 Ni-63 5.376% 9.55E+02 Zn-65 0.001% 1.35E-01 Cs-1 37 0.000% 1.78E-03 Ce-144 0.000% 1.56E-02 Pu-238 0.000% 1.56E-02 Pu-241 0.000% 2.76E-03 Cm-242 0.000% 3.41 E-05 C-14 0.009% 1.59E+00 Tc-99 0.000% 8.96E-03 Pu-239 0.000% 4.94E-04 Am-241 0.000% 1.26E-05 Cm-244 0.000% 8.35E-05 1-129 0.000% 9.63E-05 Ni-59 0.026% 4.59E+00 Nb-94 0.000% 1.95E-02 Ta-182 0.025% 4.38E+00 U-235 0.000% 5.47E-08 Totals 100.000% 1.78E+04 26 Facility:

Peach Bottom Units 2 & 3 Licensee:

Exelon Generation Company, LLC PSEG Nuclear, LLC d: Other (describe) oil abundance nuclide (no cutoff) activity (Ci)H-3 95.049% 1.55E-02 Mn-54 0.001% 1.19E-07 Fe-55 1.364% 2.22E-04 Co-60 2.496% 4.07E-04 Ni-63 0.141% 2.31E-05 Zn-65 0.002% 3.24E-07 Cs-137 0.301% 4.90E-05 Ce-144 0.539% 8.79E-05 C-14 0.088% 1.44E-05 Sr-90 0.01 8% 2.97E-06 Tc-99 0.000% 7.34E-08 Totals 100.00% 1 .63E-02 3. Solid Waste Disposition Number of shipments Mode of Transportation Destination 6 highway Barnwell Waste Mgmt. Facility 14 highway Energy Solutions (Clive, UT)28 highway Energy Solutions (Oak Ridge, TN)1 highway jStudsvik Processing Facility, LLC B. IRRADIATED FUEL SHIPMENTS (Disposition)

No shipment of irradiated fuel were made during the reporting period of 2008.C. Changes to Process Control Program (PCP)There were changes made to RW-AA-1 00 "Process Control Program for Radioactive Waste" in 2008. All changes made were administrative and the changes did not reduce the overall conformance of solidified waste product to the existing criteria for solid wastes.27 Facility:

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Exelon Generation Company, LLC PSEG Nuclear, LLC (Page Intentionally Left Blank)28 Facility:

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Exelon Generation Company, LLC PSEG Nuclear, LLC Attachment 4 Radiological Impact on Man 29 Facility:

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Exelon Generation Company, LLC PSEG Nuclear, LLC~1j (Page Intentionally Left Blank)30 Facility:

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Exelon Generation Company, LLC PSEG Nuclear, LLC 1. Radiological Impact on Man The Annual Radiation Dose Assessment Report for January 1, 2008 to December 31, 2008 contained dose calculations based on current year meteorology and river flows.The total body and skin doses, 40 CFR 190 doses and doses to MEMBERS OF THE PUBLIC due to activities inside the site boundary are found in the Annual Radiation Dose Assessment Report for January 1, 2008 to December 31, 2008.2. A summary of gaseous and liquid radiation annual doses to MEMBERS OF THE PUBLIC as calculated by the ODCM follows: Effluent Applicable Estimated Age Location % of Limit Unit Organ Dose Group Distance Direction Applicable (meters) (toward) Limit Noble Gas Gamma -Air Dose 4.503E-02 All 1097 SSE 2.252E-01 20 mRad Noble Gas Beta- Air Dose 3.22E-02 All 1097 SSE 8.051E-02 40 mRad Gaseous Total Body 3.47E-01 Infant 396 E 3.47E+00 10 mrem Gaseous Skin 4.68E-01 All 396 E 1.56E+00 30 mrem Iodine, Particulate

& Thyroid 1.366E+00 Infant 1097 SSE 4.55E+00 30 mrem Tritium Direct T Diati Total Body <LLD All 1150 SSE <LLD 22 mrem RadiationI Liquid Total Body 4.291E-03 Adult Site Boundary 7.152E-02 6 mrem GI-LLI 9.724E-03 Adult Site Boundary 4.862E-02 20 mrem Doses calculated were well below all ODCM limits.3. Liquid and gaseous effluent radiation monitors and instrumentation No effluent radiation monitors and instrumentation were unavailable for periods beyond the requirements of the ODCM.31 Facility:

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Exelon Generation Company, LLC PSEG Nuclear, LLC (Page Intentionally Left Blank)32 Facility:

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Exelon Generation Company, LLC PSEG Nuclear, LLC Attachment 5 Meteorological Data 33 Facility:

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Exelon Generation Company, LLC PSEG Nuclear, LLC (Page Intentionally Left Blank)34 Facility:

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Exelon Generation Company, LLC PSEG Nuclear, LLC Attachment 5 Meteorological Data The meteorological data can be found in the Annual Radiation Dose Assessment Report for January 1, 2008 through December 31, 2008.35 Facility:

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Exelon Generation Company, LLC PSEG Nuclear, LLC (Page Intentionally Left Blank)36 Facility:

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Exelon Generation Company, LLC PSEG Nuclear, LLC Peach Bottom Nuclear Station Period of Record: January -March 2008 Stability Class -Extremely Unstable -15OFt-33Ft Winds Measured at 33 Feet Delta-T (F)Wind Speed (in mph)Wind Direction N NNE NE ENE E ESE SE SSE S SSW SW WSW W WNW NW NNW variable Total 1-3 0 0 3 12 10 2 0 0 0 0 0 0 0 0 0 0 0 4-7 8 0 1 2 14 9 1 0 1 0 0 1 1 1 3 4 0 8-12 0 0 0 0 0 0 1 3 6 i 0 0 0 1 1 1 0 13-18 19-24 > 24 Total 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0. 0 0 0 0 0 0 0 0 0 0 0.0 0 8 4 1.4 24 11 2 3 7 1 0 1 1 2 4 5 0 27 46 14 0 8 0 87 Hours of calm in Hours of missing Hours of missing this stability class: wind measurements in this stability measurements in 0 stability class:, 0 all stability classes: 17 37 Facility:

Peach Bottom Units 2 & 3 Licensee:

Exelon Generation Company, LLC PSEG Nuclear, LLC Peach Bottom Nuclear Station Period of Record: January -March 2008 Stability Class -Moderately Unstable -15OFt-33Ft Delta-T (F)Winds Measured at 33 Feet Wind Direction N NNE NE ENE E ESE SE SSE S SSW SW WSW W WNW NW NNW Variable Total 1-3 0 1 1 2 3 2 0 0 0 0 0 0 0 0 0 0 0 4-7 12 0 0 0 1 0 0 0 2 0 0 2 4 1 71 7 0 Wind Speed (in mph)8-12 13-18 0 0 1 0 0 0 0 0 0 0 0 0 0 0 2 0 3 0 0 0 3 0 2 0 6 0 19-24 > 24 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0ý 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Total 12 2 1 2 4 2 0 2 5 0 3 4 10 12 8 10 0 3 0 2 0 0 9 30 34 4 0 0 77 Hours of calm in Hours of missing Hours of missing this stability class;wind measurements in this stability measurements in stability class: 0 all stability classes: 17 38 Facility:

Peach Bottom Units 2 & 3 Licensee:

Exelon Generation Company, LLC PSEG Nuclear, LLC Peach Bottom Nuclear Station Period of Record: January -March 2008 Stability Class -slightly Unstable -150Ft-33Ft Delta-T (F)Winds Measured at 33 Feet Wind Speed (in mph)Wind Direction N NNE NE ENE E ESE SE SSE S SSW SW WSW W NW NNW Variable Total 1-3 0 0.3 2 2 0 0 1 0 0 0 0 0 0 0 0 0 4-7 8-12 13-18 19-24 > 24 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0"I 0 0 0 0 2 0 0 0 0 1 0 0 0 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 2 0 0 0 0 1 2 0 0 0 s 4 2 0 0 2 12 1 0 0 8 7 1 0 0 8 4 0 0 0 0 0 0 0 0 Total 1 0 3 2 3 2 1 1 1 0 2 3 11 15 16 12.0 8 32 29 4 0 0 73 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: 17 39 Facility:

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Exelon Generation Company, LLC PSEG Nuclear, LLC Peach Bottom Nuclear Station Period of Record: January -March 2008 Stability Class -Neutral -150Ft-33Ft Delta-T (F)Winds Measured at 33 Feet Wind Direction N NNE NE ENE E ESE SE SSE S SSW SW WSW W WNW NW NNW Variable Wind Speed (in mph)1-3 4-7 8-12 13-18 19-24 > 24 Total 14 11 13 22 21 7 5 1 1 0 1 1 1 2 9 7 0 12 1 1 0 0 5 20 15 9 4 10 9 19 22 42 41 0 1 0 0 0 0 8 11 5 S 1 9 27 52 84 32 0 0 0 0 0 0 0 0 0 0 0 1 4 11 14 20 5 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 o0 27 12 14 22 21 12 33 27 15 9 13.23 59 90 155 85 0 Total 116 210 235 Hours of calm in Hours of missing Hours of missing this stability class.wind measurements in this stability measurements in 55 1 0 617 0 stability class: 0 all stability classes:.

17 40 Facility:

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Exelon Generation Company, LLC PSEG Nuclear, LLC Peach Bottom Nuclear Station Period of Record: January -March 2008 Stability Class -Slightly Stable -1SOFt-33Ft Delta-T (F)Winds Measured at 33 Feet Wind Speed (in mph)Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 20 14 0 0 0 0 34 NNE 32 4 0 0 0 0 36 NE 42 0 0 0 0 0 42 ENE 40 0 0 0 0 0 40 E 46 3 0 0 0 0 49 ESE 38 8 0 0 0 0 46 SE 32 42 10 1 0 0 85 SSE 15 32 16 0 0 0 63 S 20 35 20 2 0 0 77 SSW 14 10 5 1 0 0 30 SW 9 6 4 1 0 0 20 WSW 15 24 3 2 0 0 44 W 1.9 77 19 1 0 0 116 WNW 25 101 37 0 0 0 163 W 26 68 29 2 0 0 125 NNW 25 30 10 0 0 0 65 Variable 0 0 0 0 0 0 0 Total 418 454 153 10 0 0 1035 Hours of calm -in this stability class: 11 Hours of missing wind measurements in this stability class: 3 Hours of missing stability measurements in all stability classes: 17 41 Facility:

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Exelon Generation Company, LLC PSEG Nuclear, LLC Peach Bottom Nuclear Station Period of Record: January -March :2008 Stability Class -Moderately Stable -15OFt-33Ft Delta-T (F)Winds Measured at 33 Feet Wind Direction N NNE NE ENE E ESE SE SSE S SSW SW WSW W WNW NW NNW Variable Total 1-3 9 1 4 13 15 19 9 2 8 6 12 27 17 is 16 7 0 180 Wind Speed (in mph)4-7 8-12 13-18 :19-24 > 24 Total 0 0 0 0 0. 9 0: 0 0 0 0 1 0 0 0 0 0 4 0 0 0 0 0 13 0 0 0 0 0 15 1 0 0 0 0 2b 1 0 0 0 0 10 0 0 0 0 0 2 1 0 0 0 0 9 0 0 0 0 0 6 5 0 0 0 0 17 12 0 0 0 0 39 4 0 0 0 0 21 2 0 0 0 0 17 0 0 0 0 0 16 0 0 0 0 0 7 0 0 0 0 0 0 26 0 0 0 0 206 Hours of calm in Hours:of missing Hours of missing this stability class: wind measurements in this stability measurements in 6 stability class: I all stability classes: 17 42 Facility:

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Exelon Generation Company, LLC PSEG Nuclear, LLC Peach Bottom Nuclear Station Period of Record. January -March 2008 Stability Class:- Extremely Stable -15OFt-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 0 0 0 0 0 0 0*NE 0 0. 0 0 0 0 0 ENE 0 0 0 0 0 0 0 E, 5 0 0 0. 0 0 5 ESE 8 0 0 0 0 0 8 SE 2 0 0 0. 0 0 2 SSE 2 0 0 0 0 0 2 S 0 0 0 0 *0 00 SSW 1 0 0 0. 0 0 1* SW 1 0 0 0 0 2 WSW 9 2 0 0 0 0 11 W 8 0 0 0 0 .0 8 WNW s 0 0 0 0 0 5 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 47 3 0 0 0 0 50 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: I Hours of missing stability measurements in all stability classes: 17 43 Facility:

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Exelon Generation Company, LLC PSEG Nuclear, LLC Peach Bottom Nuclear Station Period of Record: January -March. 2008 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 2 3 0 0 0 5 ESE 0 1 11 2 0 0 14 SE 0 0 2 6 0 0 8 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 3 16 8 0 0 27 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: 17 44 Facility:

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Exelon Generation Company, LLC PSEG Nuclear, LLC Peach Bottom Nuclear Station Period of Record: January -Stability Class -Moderately Unstable Winds Measured at 320 March 2008-316Ft-33Ft Feet Delta-T (F)Wind Direction N NNE NE ENE E ESE SE SSE S SSW SW WSW W WNW NNW Variable Total Wind Speed (in mph)1-3 4-7 8-12 13-18 19-24 > 24 Total 0 1 0 0 0 0 1 o 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 1 0 1 2 0 0 0 3 0 0 1 0 0 0 1 0 0 0 0 0 0 0 0 0 0 6 1 0 7 0 0 0 0 1 0 1 0 0 0 0 0 2 0 0 0 0 0 0 0 0 0 0 1 0 0 0 1 0 0 0 0 1 0 1 0 0 0 0 0 0 0 0 0 0 0 .0 0 0 0 0 0 0 0 01 0 2 6 7 2 0 17 Hours of calm in Hours of missing Hours of missing this stability class: wind measurements in this stability measurements in 0 stability class: 0 all stability classes: 17 45 Facility:

Peach Bottom Units 2 & 3 Licensee:

Exelon Generation Company, LLC PSEG Nuclear, LLC Peach Bottom Nuclear Station Period of Record: January -March 2008 Class -Slightly Unstable -316Ft-33Ft Winds Measured at 320 Feet Stability Delta-T (F)wind Direction N NNE NE ENE E ESE SE SSE S SSW SW WSW W WNW NW Variable Wind Speed (in mph)1-3 4-7 8-12 13-18 19-24 > 24, Total 0 0 0 0" 0 0 0 0 0 0 0 0 3 2 0 0 Total 7 18 9 11 i 51 Hours of calm in Hours of missing Hours of.missing this stability class: wind measurements in this stability measurements in 0 stability class: 0 all stability classes-17 46 Facility:

Peach Bottom Units 2 & 3 Licensee:

Exelon Generation Company, LLC PSEG Nuclear, LLC Peach Bottom Nuclear Station Period of Record: January -March 2008 Stability Class -Neutral -316Ft-33Ft Winds Measured at 320 Feet Delta-T (F)Wind.Direction 1-3 N 2 NNE 4 NE 4 ENE 5 E 4 ESE 0 SE 2 SSE 0 S 0 SSW 0 SW 0 WSW 0 W 1 WNW 0 NW 0 NNW 0 Variable 0 4-7.20 10 12 7 7 13 8 4 3 1 2 1 3 4 6 28 0 Wind Speed (in mph)8-12 13-18 24 9 15 2 3 0 4 0 9 1 27 8 31 29 12 12 13 15.7 11 12 3 9 9 16 22 16 50 23 59 56 51 0 0 19-24 > 24 1 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 7 2 2 0 3 3 2 5 33 23 62 18 52 23 46 15 0. 0 Total 56 31 19 16 21 48 71 28 40 21 23 26 98 150 163 196.0 Total 22 129 277 281 209 89 1007 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: 17 47 Facility:

Peach Bottom Units 2 & 3 Licensee:

Exe PSEG Nuclear Peach Bottom Nuclear Station Period of Record: January -March 2008 Stability Class -Slightly Stable -316Ft-33Ft Winds Measured at 320 Feet Ion Generation Company, LLC , LLC Delta-T (F)Wind Speed (in mph)Wind Direction N NNE ENE ESE E ESE SE SSE S SSW SW WSW W NW NNW Variable 1-3 3 2 4 3 9 1 1 7 5 4 3 1 4 2 1 1 0 4-7 8-12 13-18 19-24 > 24 Total 20 12 11 16 10 16 14 14 16 8 17 7 1 3 7 11 0 18 11 4 6 22 32 21 23 17 31 12 11 14 24.34 28 0 5 2 2 0 9 6 4 14 41 9 6 12 35 52 45 18 0 0 0 0 0 1 4 1 5 19 16 0 3 9 10 7 2 0 46 27 21 25 51 59 42 64 104 70 32 37 63 91 96 60 0 Total 51 177 308 260 77 15 888 Hours of calm in Hours of missing Hours of missing this stability class: wind measurements in this stability measurements in 0 stability class: 1 all stability classes: 17 48 Facility:

Peach Bottom Units 2 & 3 Licensee:

Exelon Generation Company, LLC PSEG Nuclear, LLC Peach Bottom Nuclear Station Period of Record: January -March 2008 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 0 0 0 0 02 NNE 0 6 5 0 0 0. 11 NE 2 4 2 0 0 0 8 ENE 2 8 5 0 0 0 is E 0 1 0 0: 0 0 1 ESE 4 3 0 0 0 8 SE 1 8 2 0 0 0 1 SSE 2 4 11 5 0 0 22 S 2 8 12 2 0 0 24 SSW 1 3 7 1 0 0 12 SW 1 2 8 0 0 0 11 WSW 2 3. 0 3 0 0 8 W 1 3 3 0 0 8 WNW 0 4 2 1 0 0 7 NW 0 4 3 0 0 0 7 NNW 1 2 3 0 0 0 6 Variable 0 0 0 0 0 0 0 Total 18 62 66 15 0 0 161 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: 17 49 Facility:

Peach Bottom Units 2 & 3 Licensee:

Exelon Generation Company, LLC PSEG Nuclear, LLC Peach Bottom Nuclear Station Period of Record: January .March 2008 Stability Class -Extremely Stable -316Ft-33Ft Winds Measured at 320 Feet Delta'T (F)Wind Speed (in mph)Wind Direction N NNE NE ENE E ESE SE SSE S SSW SW WSW W WNW NNW Variable 1-3 4-7 8-12 13-18 19-24 > 24 0 1 0 0 0 0 0 3 0 0 0 0 0 3 0 0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0 1 0 0 0 0 0 0 0 0 0 0 0 2 1 3 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0.Total I 3 1 1 0 0 0 1 0 0 2 3 0 0 2 Total I 7. 7 0 .0 0 15 Hours of calm in Hours of missing Hours of missing this stability class: wind measurements in this stability measurements in 0 stability class: 0 all stability classes 17 50 Facility:

Peach Bottom Units 2 & 3 Licensee:

Exelon Generation Company, LLC PSEG Nuclear, LLC Peach Bottom Nuclear Station Period of Record: April -June 2008 Stability Class -Extremely Unstable -1SOFt-33Ft Winds Measured at 33 Feet Delta-T (F)wind Speed (,in mph)Wind Direction N NNE NE E ESE SE SSE S SSW SW WSW W WNW NNW Variable 1-3 4-7 8-12 13-18 19-24 > 24 4 19 1 0 0 0 13 2 0 0 0 0 10 4 0 0 0 0 26 2 0 0 0 0 22 7 0 0 0 0 Total 24 15 14 28 10 2 1 0 0 0 0 0 0 0 0 12 11 3 12 1 0 2 1 5 0 0 0 0 1 3 4 0 0 0 0 0 0 0 0 2 26 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 22 0 15 0 .5 0 17 0 1 0 1 0 0 0 2 0 2 0 11 0 30 0 0 Total 88 ill 17 0 0 0 216 flours of calm in Hours of missing Hours of missing this stability class: wind measurements in this stability measurements in stability class: 18 all stability classes: 20 51 Facility:

Peach Bottom Units 2 & 3 Licensee:

Exelon Generation Company, LLC PSEG Nuclear, LLC Peach Bottom Nuclear Station Period of Record: April -June 2008 Stability Class -Moderately Unstable -15OFt-33Ft Winds Measured at 33 Feet Delta-T (F)Wind Speed (in mph)Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N NNE NE ENE E ESE SE SSE S SSW SW WSW W WIN4 11W NNW variable Total 32 92 20 5 0 0 139 HOurs of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 2 Hours of missing stability measurements in all stability classes: 20 52 Facility:

Peach Bottom Units 2 & 3 Licensee:

Exelon Generation Company, LLC PSEG Nuclear, LLC Peach Bottom Nuclear Station Period of Record: April -June 2008 Stability Class -Slightly Unstable -1SOFt-33Ft Delta-T (F)Winds Measured at 33 Feet Wind Direction N NNE NE ENE E ESE SE SSE S SSW SW WSW W WNW NW NNW Variable Wind Speed (in mph)1-3 4-7 8-12 13-18 19-24 > 24 Total Total 17 41 9 0 0 0 67 Hours of calm in Hours of missing Hours of missing this stability class: wind measurements in this stability measurements in 0 stability class: 0 all stability classes: 20 53 Facility:

Peach Bottom Units 2 & 3 Licensee:

Exelon Generation Company, LLC PSEG Nuclear, LLC Peach Bottom Nuclear Station Period of Record: April -June 2008 Stability Class -Neutral -15OFt-33Ft Delta-T (F)Winds Measured at 33 Feet Wind Speed (in mph)Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 20 13 7 0 0 0 40.NNE 18 .1 0 0 0 0 19 NE 15 0 0 0 0 0 15 ENE 10 2 0 0 0 0 12 E 14 0 0 0 0 0' .14 ESE 11 5 0 0 0 0 16 SE 0 18 4 0 0 0 22 SSE 8 28 .5 0 0 0 41 S 3 15 8 0 0. 0 26 SSW 2 10 4 0 0 0 16 SW 4 11 11 0 0 0 26 WSW 3 19 6 0 0 0 28 W 8 29 6 0 0 0 43 WNW 6 19 10 2 0 0 37 NW 3 40 17 1 0 0 61 NNW 15 18 5 0 0 0 38 Variable 0 0 0 0 0 0 0 Total 140 228 83 3 0 0 454 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 15 Hours of missing stability measurements in all stability classes: 20 JI 54 Facility:

Peach Bottom Units 2 & 3 Licensee:

Exelon Generation Company, LLC PSEG Nuclear, LLC Peach Bottom Nuclear Station Period of Record: April -June 2008 Stability Class -Slightly Stable -15OFt-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 24 20 21 0 0 0 65 NNE 20 1 6 0 0 0 27 NE 28 0 0 0 0 0 28 ENE 23 0 0 0 0 0 23 E 31 3 0 0 0 0 34 ESE 27 5 0 0 0 0 32 SE 35 21 0 0 0 0 56 SSE 39 29 4 0 0 0 72 S 36 19 8 0 0 0 63 SSW 21 20 3 0 0 0 44 SW 19 28 6 0 0 0 53 WSW 18 33 0 0 0 0 51 W 22 36 2 0 0 0 60 WNW 19 44 2 0 0 0 65 NW 16 52 12 0 0 0 80 NNW 15 32 5 0 0 0 52 Variable 0 0 0 0 0 0 0.Total 393 343 69 0 0 0 805 Hours of calm in this stability class: 5 Hours of missing wind measurements in this stability class: 29 Hours of missing stability measurements in all stability classes: 20 55 Facility:

Peach Bottom Units 2 & 3 Licensee:

Exelon Generation Company, LLC PSEG Nuclear, LLC Peach Bottom Nuclear Station Period of Record: April.- June 2008 Stability Class -Moderately Stable -1SOFt-33Ft Winds Measured at 33 Feet Delta-T (F)Wind Direction N NNE NE ENE E ESE SE SSE S SSW SW WSW W NW NNW Variable Total Wind Speed (in mph)1-3 4-7 8-12 13-18 19-24 > 24 2 0 0 0 0 0 2 0 0 0 0 0 2 0 0 0 0 0 2 0 0 0 0 0 5 0 0 0 0 0 6 0 0 0 0 0 6 0 0 0 0 0 4 1 0 0 0 0 4 3 0 0 0 0 12 0 0 0 0 0 25 16 0 0 0 0 30 29 0 0 0 0 39 24 0 0 0 0 17 5 0 0 0 0 9 3 0 0 0 0 7 3 0 0 0 0 0 0 0 0 0 0 Total 2 2 2 5 5 6 6 5 7 12 41 59 63 22 12 10 0 175 84 0 0 0 0 259 Hours Hours Hours of calm in of missing of missing this stability class: wind measurements in this stability measurements in 6 stability class: 5 all stability classes: 20 56 Facility:

Peach Bottom Units 2 & 3 Licensee:

Exelon Generation Company, LLC PSEG Nuclear, LLC Peach Bottom Nuclear Station Period of Record: April -June 2008 Stability Class -Extremely Stable -150Ft-33F Winds Measured at 33 Feet Wind Speed (in mph)t Delta-T (F)Wind Direction N NNE NE ENE E ESE SE SSE S SSW SW WSW w WNW NW NNW Variable Total 1-3 4-7 8-12 13-18 19-24 > 24 Total 1 0 0 0 0 0 1 0 0 0 0 0 0 0 3 0 0 0 0 0 3 0 0 0 0 0 0 0 2 0 0 0 0 0 2 1 0 0 0 0 0 1 0 0 0 0 0 0 1 0 0 0 0 0 0 0 3 0 0 0 0 0 3 6 0 0 0 0 0 6 32 4 0 0 0 0 36 42 6 0 0 0 0 48 19 1 0 0 0 0 20 8 0 0 0 0 0 8 30 0 0 0 0 3 2 0 0 0 0 0 2 00 0 0 0 0 122 11 0 0 0 0 133 Hours of calm in Hours of missing Hours of missing this stability class: 1 wind measurements in this stability class: 10 stability measurements in all stability classes: 20 57 Facility:

Peach Bottom Units 2 & 3 Licensee:

Exelon Generation Company, LLC PSEG Nuclear, LLC Peach.Bottom Nuclear Station Period of Record; April -June 2008 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 1 1 0 0 2 NE 0 0 0 0 0 0 0 ENE 0 3 1 3 0 0 7 E 0 7 4 4 1 0 16 ESE 0 6 7 6 0 0 19 SE 0 0 4 3 1 0 8 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 2 0 0 0 2 Variable 0 0 0 0 0 0 0 Total 0 16 19 17 .2 0 54 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: 20 58 Facility:

Peach Bottom Units 2 & 3 Licensee:

Exelon Generation Company, LLC PSEG Nuclear, LLC Peach Bottom Nuclear Station Period of Record: April -June 2008 Stability Class -Moderately Unstable -316Ft-33Ft Winds Measured at 320 Feet Delta-T (F)Wind Speed (in mph)Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N NNE NE ,ENE E ESE SE SSE S SSW SW WSW W WNW NW NIIW Variable Total 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1 4 0 0 1 0 0 0 0 0 0 0 0 0 6 0 0 0 5 4 2 2 2 3 0 0 0 0 2 0 0 0 0 1 1 1 2 0 4 0 0 0 0 0 2 3 0 0 0 0 0 0 0 1 0 1 0 0 0 0 0 2 0----- -----7 1 2 5 11 11 6 2 7 3 0 0 0 0 2 7 0 0 18 26 14 4 2 64 Hours of calm in Hours of missing Hours of missing this stability class: wind measurements in this stability measurements in 0 stability class, 0 all stability classes: 20 59 Facility:

Peach Bottom Units 2 & 3 Licensee:

Exelon Generation Company, LLC PSEG Nuclear, LLC Peach Bottom Nuclear Station Period of Record: April -June 2008 Stability Class -Slightly Unstable -316Ft-33Ft Winds Measured at 320 Feet Delta-T (F)Wind Direction 1-3 N 0 NNE 0 NE 1 ENE 1 E 0 ESE 0 SE 0 SSE 0 S 0 SSW 0 SW 0 WSW 0 W 0 WN"W 0 NW 0 NNW 0 Variable 0 Total 2 Wind Speed (in mph)4-7 8-12 13-18 19-24 > 24 2 14 0 0 0 2 1 2 1 0 3 0 0 0 0 6 7 4 5 0 0 0 0 0 0 0 0 2 0 2 2 4 6 1 5 3 3 4 1 4 19 0 1 0 1 0 2 6 0 0 2 0 5 1 8 0 0 0 0 1 0 2 0 0 0 0 0 3.2 0 Total 16 6 4 10 9 10 12 3 13 3 3 3 1 6 9 32 0 31 67 28 9 3 140 Hours of calm in Hours of missing Hours of missing this stability class: wind measurements in this stability measurements in.stability class: 0 all stability classes: 20 60.

Facility:

Peach Bottom Units 2 & 3 Licensee:

Exelon Generation Company, LLC PSEG Nuclear, LLC Peach Bottom Nuclear Station Period of Record: April -June 2008 Stability Class -Neutral -316Ft-33Ft Winds Measured at 320 Feet Delta-T (F)Wind Speed (in mph)Wind Direction 1-3 4-7 8-12 13-18 N 0 14 15 19 NNE 2 17 11 10 NE 3 8 11 1 ENE 3 19 14 9 E 5 18 30 7 ESE 1 12 15 14 SE 0 8 26 11 SSE 0 5 29 8 S 0 12 13 21 SSW 1 4 13 9 SW 1 .5 9 13 WSW 0 8 7 28 W 1 9 20 18 WNW 0 9 23 27 NW 0 8 22 30 NNW 0 16 46 27 Variable 0 0 0 0 19-24 > 24 7 0 8 2 1 0 1 0 6 0 3 7 2 1 0 0 6 0 4 0 6 0 9 1 3 3 7 2 13 2 9 2 0 0 Total 55 50 24 46 66 52 48 42 52 31 34 53 54 68 75 100 0 Total 17 1.72 304 252 85 20 850 Hours of calm in Hours of missing Hlours of missing this stability class: wind measurements in this stability measurements in 0 stability class: 0 all stability classes: 20 61 Facility:

Peach Bottom Units 2 & 3 Licensee:

Exelon Generation Company, LLC PSEG Nuclear, LLC Peach Bottom Nuclear Station Period of Record. April -June 2008 Stability Class -Slightly Stable -316Ft-33Ft Winds Measured at 320 Feet Delta-T (F)wind Speed (in mph)Wind Direction N NNE NE ENE E ESE SE SSE S SSW SW WSW W WNW NW NNW Variable 1-3 4-7 8-12 13-18 19-24 > 24 0 0 9 10 4 0 2 2 12 1 1 0 0 2 9 0 0 13 1 5 10 10 1 0 0 10 14 2 2 0 0 14 17 13 1 0 2 3 15 3 0 0 1 13 14 4 1 0 5 2 3 2 1 3 4 5 0 12 15 20 8 7 6 8 5 0 37 30 28 20.22 15 23 14 0 18 17 14 23 23 29 40 22 0 13 3 3 4 3 4 10 5 0 Total 23 18 24 27 28 45 23 33 85 67 68 57 56 57 85 51 0 0 0 0 0 0 0 0 0 Total 31 130 289 229 55 13 747 Hours of calm in Hours of missing Hours of missing this stability class: wind measurements in this stability measurements in 0 stability class: 1 all stability classes: 20 62 Facility:

Peach Bottom Units 2 & 3 Licensee:

Exelon Generation Company, LLC PSEG Nuclear, LLC Peach Bottom Nuclear Station Period of Record: April -June 2008 Stability Class -Moderately Stable -316Ft-33Ft Delta-T (F)Winds Measured at 320 Feet IWind Speed (in mph)Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N .0 1 1 1 1 0 4 NNE 0 2 2 0 0 0 4 NE 2 1 1 0 0 0 4 ENE 1 1 1 0 0 0. 3 E 1 1 1 0 0 0 3 ESE 0. 2 0 0 0 0 2 SE 2 4 1 0 0 0 7 SSE 0 5 3 0 0 0 8 S 1 4 0 0 0 0 5 SSW 2 4 1 4 0 0 11 SW 2 9 12 3 0 0 26 WSW 3 8 16 10 1 0 38 W 1 6 14 20 0 0 41 WNW 0 12 3 13 2 0 30 NW 1 3 10 8 0 0 22 NNW 0 2 5 3 0 0 10 Variable 0 0 0 0 0 0 0 Total 16 65 71 62 4 0 218 Hours of calm in this stability classt: 0 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 20.63 Facility:

Peach Bottom Units 2 & 3 Licensee:

Exelon Generation Company, LLC PSEG Nuclear, LLC Peach Bottom Nuclear Station Period of Record: April -June 2008 Stability Class -Extremely Stable -316Ft-33Ft Winds Measured at 320 Feet Delta-T (F)Wind Direction 1-3 Wind Speed (in mph)4-7 8-12 13-18 19-24 > 24 Total N NNE NE ENE E ESE SE SSE S SSW SW WSW W WNW NW NNW Variable Total 1 2 1 0 0 0 1 0 4 2 1 3 10 4 8 5 0 5 6 3 1 1 0 3 1 4 6 I" 6 17 10 16 10 0 6 31 42 11 0 0 90 Hours of calm in this stability class: Hours of missing wind measurements in this Hours of missing stability measurements in 0 stability class: 0 all stability classes: 20 64 Facility:

Peach Bottom Units 2 & 3 Licensee:

Exelon Generation Company, LLC PSEG Nuclear, LLC Peach Bottom Nuclear Station Period of Record: July -September 2008 Stability Class -Extremely Unstable -150Ft-33Ft Winds Measured at 33 Feet Delta-T (F)Wind Speed (in mph)Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 N 5 6 0 0 0 0 NNE 4 0 0 0 0 0 NE 4 1 0 0 0 0 ENE 9 0 0 0 0 0 E 9 1 0 0 0 0 ESE 7 2 .0 0 0 0 SE SSE S SSW Sw WSW W WNW NW NNW Variable Total 7 2 0 0 0 0 0 0 1.5 0 22 4 2 3 3 0 1 0 8 0 0 3 1 0 3 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0.0 0 0 0 0 0.0 Total 11 4 5 9 10 9 23 27 5 2 6 3 0 1 1 13 0 53 69 7 0 0 0 129 Hours of calm in Hours of missing Hours of missing this stability class: wind measurements in this stability measurements in 0 stability class: 0 all stability classes: 11 65 Facility:

Peach Bottom Units 2 & 3 Licensee:

Exelon Generation Company, LLC PSEG Nuclear, LLC Peach Bottom Nuclear Station Period of Record: July -September 2008 Stability Class -Moderately Unstable -15OFt-33Ft Winds Measured at 33 Feet Delta-T (F)Wind Direction N NNE NE ENE E ESE SE SSE S SSW SW WSW W WNW NW NNW Variable Total Wind Speed (in mph)1-3 4-7 8-12 13-18 19-24 > 24 Total 4 16 0 0 0 0 20 5 3 0 0 0 0 3 0 0 0 0 0 9 0 0 0 *0 0 6 0 0 0. 0 0 4 0 0 0 0 0 8 3 9 6 4 0 .3 0 0 0 0 3 2 16 1 0 0 0 19 0 8 0 0 0 0 8 1 5 0 0 0 0 6 1 4 1 0 0 0 6 2 4 0 0 0 0 6 0 1 0 0 0 0 1 i 1 0 0 0 0 2 2 11 0 0 0 0 13.23 1 0 0 0 25 0 0 0 0 0 0 0 41 95 3 0 0 0 139 Hours of calm in Hours of missing Hours of missing this stability class: wind measurements in this stability measurements in 0 stability class; 0 all stability classes: 11 66 Facility:

Peach Bottom Units 2 & 3 Licensee:

Exelon Generation Company, LLC PSEG Nuclear, LLC Peach Bottom Nuclear Station Period of Record: July -September 2008 Stability Class -Slightly Unstable -150Ft-33Ft Winds Measured at 33 Feet Wind Speed (in mph)Wind Delta-T (F)Direction 1-3 4-7 8-12 13-18 24 > 24 Total--------. ----. .-- -.-- -. .-- ----.-- ----N NNE NE ENE E ESE SE SSE S SSW SW WSW W WNW NW NNW Variable Total 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 7 4 4 0 2 3 3 5 4 4 8 5 2 1 11 12 0 24 47 4 0 0 0 75 Hours of calm in Hours of missing Hours of missing this stability class;wind measurements in this stability measurements in 0 stability class: 0 all stability classes: 11 67 Facility:

Peach Bottom Units 2 & 3 Licensee:

Exelon Generation Company, LLC PSEG Nuclear, LLC Peach Bottom Nuclear Station Period of Record: July -Septembe Stability Class -Neutral -ISO Winds Measured at 33 Feet Wind speed (in mph)Wind r 2008 Ft-33Ft Delta-T (F)> 24 Total Direction 1-3 4-7 8-12 13-18 19-24 N 33 41 1 0 0 NNE 12 2 0 0 0 NE 15 0 0 0 0 ENE 9 0 0 0 0 E 10 0 0 0 0 ESE 5 1 0 0 0 SE 7 9 0 0 0 SSE 18 28 3 0 0 S 16 9 0 0 0 SSW 9 5 0 0 0 SW 8 19 1 0 0 WSW 11 12 0 0 0 W 6 14 0 0 0 WNW 14 15 2 0 0 NW 18 34 0 0 0 NNW 22 36 2 0 0 variable 0 0 0 0 0 75 14 15 9 10 6 16 49 25 14 28 23 20 31 52 60 0 Total 213 225 9 0 0 0 447.Hours of calm in Hours of missing Hours of missing this stability class: wind measurements in this stability measurements in 2 stability class: 2 all stability classes: 11 68 Facility:

Peach Bottom Units 2 & 3 Licensee:

Exelon Generation Company, LLC PSEG Nuclear, LLC Peach Bottom Nuclear Station Period of Record: July -Septembe Stability Class -Slightly Stable -150 Winds Measured at 33 Feet Wind Speed (in mph)Wind r 2008 Ft-33Ft Delta-T (F)Direction 1-3 4-7 8-12 13-18 19-24 > 24 N 38 55 6 1 0 0 NNE 11 3 0 0 0 0 NE 7 0 0 0 0 0 ENE 10 0 0 0 0 0 E 5 0 0 0 0 0 ESE 18 0 0 0 0 0 SE 48 30 0 0 0 0 SSE 57 49 1 0 0 0 S 46 19 1 0 0 0 Total 100 14 7 10 5 1i 78 107 66 43 68 48 65 66 78 54 0 SSW SW WSW W WNW NW NNW Variable 33 42 33 32 35 34 29 0 10 25.15 33 31 41 21 0 0 0 0 0 0 3 3 0 0 6 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Total 478 332 15 2 0 0 827 Hours of calm in Hours of missing Hours of missing this stability class: wind measurements in this stability measurements in 8 stability class: 0 all stability classes: 11 69 Facility:

Peach Bottom Units 2 & 3 Licensee:

Exelon Generation Company, LLC PSEG Nuclear, LLC Peach Bottom Nuclear Station Period of Record; July -September 2008 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 0 0 0 0 0 0 0 NNE 2 0 0 0 0 0 2 NE 0 0 0 0 0 0 0 ENE 1 0 0 0 0 0 1 E 0 0 0 0 0 0' 0 ESE 0 0 0 0 0 0 0 SE 4 0 0 0 0 0 4 SSE 12 5 0 0 0 0 17 S 17 1 0 0 0 0 18 SSW 17 6 0 0 0 0 23 SW 46 1 0 0 0 0 47 WSW 47 17 0 0 0 0 64 W 36 21 0 0 0 0 57 WNW 26 6 0 0 0 0 32 NW 19 3 0 0 0 0 22 NNW 3 3 0 0 0 0 6 Variable 0 0 0 0 0 0 0 Total 230 63 0 0 0 293 Hours of calm in this stability class: 5 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes; 11 70 Facility:

Peach Bottom Units 2 & 3 Licensee:

Exelon Generation Company, LLC PSEG Nuclear, LLC Peach Bottom Nuclear Station Period of Record: July -September 2008 Stability Class -Extremely Stable -15OFt-33Ft Winds Measured at 33 Feet wind Speed (in mph)Wind Delta-T (F)Direction 1-3 N NNE NE ENE E ESE SE SSE S SSW SW WSW W WNW NW NNW Variable Total 0 0 0 0 0 0 0 0 8 99 85 18 4 I 0 0 215 4-7 8-12 13-18 19-24 > 24 Total 0 0. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0. 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0. 0.0 0 0 0 0 0 0 0 0 0 0 0 1 0 0 0 0 9 31 0 0 0 0 130 8 0 0 0 0 93 13 0 0 0 0 31 2 0 0 0 0 6.0 0 0 0 0 1 0 0 0 0 0 0 0 0 0 0 0 0 55 0 0 0 0 270 Hours of calm in Hours of missing Hours of missing this stability class: wind measurements in this stability measurements in 0 stability class: 0 all stability classes: 11.71 Facility:

Peach Bottom Units 2 & 3 Licensee:

Exelon Generation Company, LLC PSEG Nuclear, LLC Peach Bottom Nuclear Station Period of Record: July -September 2008 Stability Class -Extremely Unstable -316Ft-33Ft Winds Measured at 320 Feet Delta-,T (F)Wind Speed (in mph)Wind Direction N NNE NE ENE E ESE SE SSB S SSW SW WSW.W WNW NW VNNW variable 1-3 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 4-7 8-12 0 0 0 0 1 4 3 5 5 4 3 10 1 .3 0 1 0 0 0 0 0 0 13-18 19-24> 24 Total 0 0 5 8 9 15 4 1 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Total 0 13 27 2 0 0 42 Hours of calm in Hours of missing Hours of missing this stability class: wind measurements in this stability measurements in 0 stability class: 0 all stability classes: 11 72 Facility:

Peach Bottom Units 2 & 3 Licensee:

Exelon Generation Company, LLC PSEG Nuclear, LLC Peach Bottom Nuclear Station Period of Record: July -September 2008 Stability Class -Moderately Unstable -316Ft-33Ft Winds Measured at 320 Feet Delta-T (F)Wind Speed (in mph)Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 N 0 0 0 0 0 0 NNE 0 0 0 0 0 0 NE 0 1 6 1 0 0 ENE 0 5 0 0 0 0 E 0 4 1 0 0 0 ESE 0 5 2 0 0 0 SE .0 0 3 0 0 0 SSE 0 0 2 1 0 0 S 0 0 2 1 0 0 SSW 0 0 0 1 0 0 SW 0 0 0 2 0 0 Total 0 0 8 5 5 7 3 3 3 1 2 1 0 0 0 1 0 WsW W WNW VNW Variable 0 0 0 0 0 0 0 0 0 Total 0 16 16 7 0 0 39 Hours of calm in Hours of missing Hours, of missing this stability class: wind measurements in this stability measurements in stability class: 0 all stability classes: 11 73 Facility:

Peach Bottom Units 2 & 3 Licensee:

Exelon C PSEG Nuclear, LL(Peach Bottom Nuclear Station.Period of Record: July -September 2008 Stability Class -Slightly Unstable -31GFt-33Ft Winds Measured at 320 Feet 3eneration Company, LLC Delta-T (F)Wind Direction N NNE NE ENE E ESE SE SSE S SSW SW WSW W WNW NW NNW Variable Total 1-3 0 0 0 1 1 0 0 0 0 0 0 0 0 0 0 0 0 4-7 o 1 6 2 5 3 2 2 0 1 0 0 0 1 0 0 Wind Speed (in mph)8-12 13-18 2 0 2 2 3 1 0 1 1 0 1 1 1 3 4 3 14 1 2 1 4 2 7 0 0 0 0 0 1 2 8 1 0 0 19-24 > 24 Total 0 0 0 0 0 2 0 0 0 0 0 0 0 0 0 0'0 0 0 0: 0 0, 0 0 0 0 0 0 5 10 4 7 5 6 9 18 5 6 7 0 0 4 9 0 2 25 50 18 2 0 97 Hours of calm in this stability 0 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 11 74 Facility:

Peach Bottom Units 2 & 3 Licensee:

Exelon Generation Company, LLC PSEG Nuclear, LLC Peach Bottom Nuclear Station Period of Record: July -September 2008 Stability Class -Neutral. -316Ft-33Ft Winds Measured at 320 Feet Delta-T (F)Wind Direction N NNE NE ENE E ESE SE SSE S SSW SW Wsw W NW NNW Variable Total Wind Speed tin mph)1-3 4-7 8-12 13-18 19-24 > 24 9 24 16- 6 0 0 9 15 22 23 1 0 6 12 7 10 5 0 4 10 5 0 0 0 12 18 10 2 0 0 7 4 12 16 1 0 5 8 11 10 0 0 5 5 15 5 0 0 4 10 17 25 1 0 1 10 7 3 0 0 1 27 19 8 0 0 2 17 17 4 1 0 2 6 20 2 0 0 2. 14 20 9 2 0 3 19 27 24 0 0 6 36 57 24 1 1 0 0 0 0 0 0 Total 55 70 40 19 42 40 34 30 57 21 55 41 30 47 73 125 0 78 235 282 171 12 1 779 Hours Hours Hours of calm in of missing of missing this stability class: wind measurements in this stability measurements in 0 stability class: 0 all stability classes: Ii 75 Facility:

Peach Bottom Units 2 & 3 Licensee:

Exelo PSEG Nuclear, I Peach Bottom Nuclear Station Period of Record: July 7 September 2008 Stability Class -Slightly Stable -316Ft-33Ft Winds Measured at 320 Feet n Generation Company, LLC LLC Delta-T (F)Wind Speed (in mph)Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N NNE NE ENE E ESE SE SSE S SSW SW WSW W WNW NW NNW Variable Total 13 14 9 17 19 12 12 14 26 15 16 9 6 5 8 10 0 15 20 15 13 20 17 14 25 34 42 27 20 13 11 15 14 0 10 7 4 3 2 5 3 14 32 13 13 12 11 28 38 14 0 0 10 0 0 0 0 0 1 3 1 0 0 4 7 3 0 29 42 54 33 38 45 39 34 59 100 74 60 42 31 52 70 43 0 53 205 315 209 5 816 Hours of calm in Hours of missing Hours of missing this stability class: wind measurements in this stability measurements in 0 stability class: 0 all stability classes: 76 Facility:

Peach Bottom Units 2 & 3 Licensee:

Exelon Generation Company, LLC PSEG Nuclear, LLC Station September 2008-316Ft-33Ft Delta-T (F)320 Feet PeachBottom Nuclear Period of Record: July -Stability Class -Moderately Stable Winds Measured at Wind Speed (in mph)Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N NNE NE ENE E ESE SE SSE S SSW SW WSW W WNW NW NNW variable Total 11 1 4 2 1 1 4 4 13 10 10 8 5 6 7.0 8 3 0 0 0 0 1 3 1 3 8 16 11 8 10 16 0 2 0 0 0 0 0 0 0 5 5 3 7 7 14 16 0 0 22 7 6 3 2 3 2 9 12 23 24 36 26 34 35 33 0 28 88 88 65 8 0 277 Hours of calm in Hours of missing Hours of missing this stability class: wind measurements in this stability measurements in stability class: 0 all stability classes: 11 77 Facility:

Peach Bottom Units 2 & 3 Licensee:

Exelon Generation Company, LLC PSEG Nuclear, LLC Peach Bottom Nuclear Station Period of Record: July -September 2008 Stability Class -Extremely Stable -316Ft-33Ft Winds Measured at 320 Feet Delta-T (F)Wind Speed {in mph)Wind Direction N NNE NE ENE E ESE SE SSE S SSW SW WSW W WNW NW Variable Total 1-3 1 0 0 0 1 0 0 0 1 3 1 0 6 2 5 2 0 4-7 8-12 13-18 19-24 > 24 Total 9 3 2 0 0 0 0 0 0 0 1 3 4 7 5 14 0 8 3 1 1 0 0 0 0 0 0 1 5 3 2 13 19 0 18 6 3 1 1 0 0 0 1 3 3 11 14 17 25 41 0 22 48 56 16 2 0 144 Hours of calm in Hours of missing Hours of missing this stability class: Wind measurements in this stability measurements in 1 stability class: 0 all stability classes: 11 78 Facility:

Peach Bottom Units 2 & 3 Licensee:

Exelon Generation Company, LLC PSEG Nuclear, LLC Peach Bottom Nuclear Station Period of Record: October -December2008 Stability Class -Extremely Unstable -150Ft-33Ft Winds Measured at 33 Feet Delta-T (F)Wind Direction N NNE NE ENE E ESE SE SSE S SSW SW Wsw W TWNW NW NNW Variable Total 1-3 4 6 4 4 6.0 0 0 0 0 0 1 0 0 0 0 0 4-7 8 3 0 0 0 2 1 3 0 0 5 2 1 2 4 6 0 wind Speed (in mph)8-12 13-18 0 0.19-24 > 24 Total 12 9 4 4 6 2 1 6 3 0 5 5 5 4 11 0 25 37 20 0 0 0 82 Hours of calm in Hours of missing Hours of missing this stability class: wind measurements in this stability measurements in 0 stability class: 0 all stability classes: 10 79 Facility:

Peach Bottom Units 2 & 3 Licensee:

Exelon Generation Company, LLC PSEG Nuclear, LLC Peach Bottom Nuclear Station Period of Record: October -December2008 Stability Class -Moderately Unstable -150Ft-33Ft Delta-T (F)Wind Direction N NNE NE ENE E ESE SE SSE S.SSW SW WSW W WNW NNW Variable Total 1-3 5 4 6 6 7 1 0 0 0 1 0 0 0 3 0 0 linds Measured Wind S 4-7 8-at 33 Feet peed (in mph)12 13-18 3 0 0 0 0 0 0 0 0 0 0 0 0 0 3 0 1 0 0 0 0 0 4 0 4 1 2 1 I0 0 5 0 0 0 17 7 6 6 7 1 4 7 3 4 4 7 7 18 21 12 0 19-24 > 24 Total 33 54 42 2 0 0 131 Hours Hours Hours of calm in of missing of missing this stability class: wind measurements in this stability measurements in 0 stability class: 0 all stability classes: 10 80 Facility:

Peach Bottom Units 2 & 3 Licensee:

Exelon Generation Company, LLC PSEG Nuclear, LLC Peach Bottom Nuclear Period of Record: October Stability Class -Slightly Unstable Winds Measured at Wind Speed Wind Direction 1-3 4-7 8-12 N 6 9 2 NNE 1 0 0 NE 4 0 0 ENE 2 0 0 E 0 0 0 ESE 3 0 0 SE 1 1 1 SSE 1 2 0 S 1 1 1 SSW 0 3 1 SW 1 0 0 WSW 0 2 1 W 0 7 7 WNW 0 3 11 NW 1 2 11 NNW 3 3 4 Variable 0 0 0 Station-December2008

-15OFt-33Ft 33 Feet (in mph)Delta-T (F)13-18 19-24 > 24 Total.0 0 0 0 0 0 0 0 0 0 0 0 1 1 1 o 0 0 0 0 0 0 0 0 0 0 0 0 0 0 2 0 0.0 0.0 0 0 0 0 0 0.0 0 0 0 0 0 0 0 17 1 4.2 0 3 3 3 3 4 1 3 15 15 17 10 0 Total 24 33 39 30 101 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: 10 81 Facility:

Peach Bottom Units 2 & 3 Licensee:

Exelon Generation Company, LLC PSEG Nuclear, LLC Peach Bottom Nuclear Station Period of Record: October -December2008 Stability Class -Neutral -15OFt-33Ft Winds Measured at 3.3 Feet Delta-T (F)Wind Speed (in mph)Wind Direction N NNE NE ENE E ESE SE SSE S-SSW Sw WSW W WNW NW NNW Variable Total 1-3 18 21 is 10 14 7 13 6 2 5.7 2 3 6 10 13 0 4-7 56 8 0 0 1 3 22 47 23 6 7 14 24 37 43 29 8-12 23 0 0 8 8 23 S 7 50 51 53 26 0 13-18 19-24 > 24 Total 0 0 0 97 0 0 0 29 0 0 0 is 0 0 0 10 0 0 0 i1 0 0 0 10 0 0 0 43 5 0 0 66 0 0 0 48 2 0 0 18 1 0 0 20 0 0 0 23 2 0 0 79 15 0 0 109 13 1 0 120 0 0 0 68 0 0 0 0 38 1 0 770 152 320 259 Hours of calm in Hours of missing Hours of missing this stability class: wind measurements in this stability measurements in 5 stability class: 0 all stability classes: 10 82 Facility:

Peach Bottom Units 2 & 3 Licensee:

Exelon Generation Company, LLC PSEG Nuclear, LLC Peach Bottom Nuclear Station Period of Record: October -December2008 Stability Class -Slightly Stable -i5oFt-33Ft Delta-T (F)Winds Measured at 33 Feet Wind Speed (in mph)Wind Direction 1-3 4-7 8-12 1.3-18 19-24. > 24 Total N 10 27 8 0 0 0 45 NNE 17 3 1 0 0 0 21 NE 14 0 0 '0 0 0 14 ENE 20 0 0 0 0 0 20 E 24 0 0 0 0 0 24 ESE 15 3 0 0 0 0 18 SE 37 16 8 0 0 0 62 SSE 22 25 1 0 0 0 48 S 22 26 16 1 0. 0 65 SSW 9 12 2 0 0 0 23 SW 21 44 2 0 0 0 67 WSW 16 68 0 0 0 0 84 W 25 .69 12 0. 0 0 106 WNW 22 58 15 0 0 0 95 NW 14 32 4 0 0 0, 50 NNW 18 26 1 0 0 0 45 Variable 0 0 0 0 0 0 0 Total 306 409 70 1 0 0 786 Hours of calm in this stability class: 5 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 10 83 Facility:

Peach Bottom Units 2 & 3 Licensee:

Exelon Generation Company, LLC PSEG Nuclear, LLC Peach Bottom Nuclear Station Period of Record: October -Decemb Stability Class -Moderately Stable 150 Winds Measured at 33 Feet Wind Speed (in mph)er2008 Ft-33Ft Wind Direction N NNE NE ENE E ESE SE SSE S SSW SW WSW W WNW NW NNW Variable 1-3 4-7 8-12 13-18 2 0 0 0 2 0 0 0 2 0 0 0 7 0 0 0 7 0 0 0 5 0 0 0 8 0 0 .0 3 0 0 0 4 0 0 0 10 1 0 0 19 6 0 0 30 16 0 0 19 16 0 0 12 4 0 0 15 2 0 0 4 0 0 0 0 0 0 0 19-24 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Delta-T (F)> 24 Total 0 2 0 2 0 2 0 7 0 7 0 5 0 8 0 3 0 4 0 11 0 25 0 46 0 35 0 16.0 17 0 4 0 0 Total 149 45 0 0 0 0 194 Hours of calm in Hours of missing Hours of missing this stability class: 0 wind measurements in this stability class: 1 stability measurements in all stability classes: 10 84 Facility:

Peach Bottom Units 2 & 3 Licensee:

Exelon Generation Company, LLC PSEG Nuclear, LLC Peach Bottom Nuclear Station Period of Record: October -Decemb Stability Class Extremely Stable -150 Winds Measured at 33 Feet Wind Speed (in mph)Wind Direction 1-3 4-7 8-12 13-18 N 0 0 0 0 NNE 0 0 0 0 NE 0 0 0 0 ENE 0 0 0 0 E 3 0 0 0 ESE 0 0 0 0 SE 0 0 0 0 SSE 1 0 0 0 S 4 0 0 0 SSW 3 0 0 0 SW 31 17 0 0 WSW 31 .5 0 0 W 19 0 0 0 WNW 8 0 0 0 NW 1 0 0 0 NNW 0 0 0 0 Variable 0 0 0 0 er2008 Ft-33Ft Delta-T (F)19-24 > 24 Total 0 0 0 0 0 0 0 0 0 0 0 0 0 0 3 0 0 1 4 3 48 36 19 8 1 0 0 0 0 0 0 0 0 0 0 Total 101 22 0 0 0 0 123 Hours of calm in Hours of missing Hours of missing this stability class: wind measurements in this stability measurements in 0 stability class: 0 all stability classes: 10 85 Facility:

Peach Bottom Units 2 & 3 Licensee:

Exelon Generation Company, LLC PSEG Nuclear, LLC Peach Bottom Nuclear Station Period of Record: October -December2008 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 1 0 0 0 0 0 ENE 0 3 0 0 0 0 3 E 0 0 1 0 0 0 1 ESE 0 1 4 0 0 0 5 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 5 S 0 0 .0 10 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.:

10 86 Facility:

Peach Bottom Units 2 & 3 Licensee:

Exelon Generation Company, LLC PSEG Nuclear, LLC Peach Bottom Nuclear Station Period of Record: October -December2008 Stability Class -Moderately Unstable -316Ft-33Ft Winds Measured at 320 Feet Delta-T (F)Wind Speed (in mph)Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total.....................N NNE NE ENE E ESE SE SSE S SSW SW WSW W WNW NW NNW Variable Total 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 33 0 0 0 Hours of calm in Hours of missing Hours of missing this stability class: wind measurements in this stability measurements in 0 stability class: 0 all stability classes: 10 87 Facility:

Peach Bottom Units 2 & 3 Licensee:

Exelon Generation Company, LLC PSEG Nuclear, LLC Peach Bottom Nuclear Station Period of Record: October -December2008 Stability Class. Slightly Unstable -316Ft-33Ft Winds Measured at 320 Feet Delta-T (F)Wind Speed (in mph)Wind Direction N NNE NE ENE E ESE SE SSE S SSW SW WSW W WNW NW Variable Total 1-3 0 0 0 2 1 0 0 0 0 0 0 0 0 0 0 0 0 4-7 0 3 0 1 0 0 0 1 0 0 0 0 0 0 0 8-12 1 3 0 0 0 0 2 1 0 0 3 2 0 13-18 19-24 0 3 0 0 0 0 0 2 3 0 1 0 0 0 0 0 0 1 0 0 S' 0 0 4 0 1 0> 24 0 0 0 0 0 0 0 0 0 1 0 0 0 Total 2 6 0 4 3 1 2 4 3 1 4 3 6 7 6 4 0 2 1 0 0 3 6 17 18 6 5 55 Hours of calm in Hours of missing Hours of missing this stability class: 0 wind measurements in this stability class: 0 stability measurements in all stability classes: 10 88 Facility:

Peach Bottom Units 2 & 3 Licensee:

Exelon Generation Company, LLC PSEG Nuclear, LLC Peach Bottom Nuclear Station Period of Record: October -December2008 Stability Class -Neutral Winds Measured at-316Ft-33Ft Delta-T (F)320 Feet Wind Speed (in mph)Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N NNE NE ENE E ESE SE SSE S SSW SW WSW W WNW NW NNW Variable 5 2 4 3 9 5 1 2 0 0 1 1 2 2 1 0 20 11 10 is 13 a 7 9 11 6 8 5 1 4 13 20 30 24 a 10 10 8 19 24 28 11 13 14 17 37 33 18 0 50 16 2 0 3 5 3 20 22 S 5 9 33 47 52 27 0 19 I 0 0 1 1 5 2 15 8 5.7 51 40 38 9 0 0 0 0 0 0 0 1 2 1 2 1 0 20 26 17 0 0 124 54 24 28 36 27 36 59 77 32 33 36 122 156 155'75 0 Total 38 161 304 299 202 70 1074 Hours of calm in Hours of missing Hours of missing this stability class: wind measurements in this stability measurements in 0 stability class: 0 all stability classes: 10 89 Facility:

Peach Bottom Units 2 & 3 Licensee:

Exelon Generation Company, LLC PSEG Nuclear, LLC Peach Bottom Nuclear Station Period of Record: October -December2008 Stability Class -Slightly Stable -316Ft-33Ft Winds Measured at 320 Feet Delta-T (F)Wind Speed (in mph)Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total......... ...... .......N NNE NE ENE E ESE SE SSE S SSW SW WSW W WNW NW NNW variable 7 11 7 6 8 8 15 12 12 14 7 9 4 5 14 7 0 23 16 6 5 9 8 14 32 39 12 15 18 20 24 24 17 0 8 a 0 0 3 5 2 9 25 9 20 31 77 24 28 14 0 2 3 0 0 0 1 5 11 5 6 3 16 8 4 2 0 43 44 15 is 24 28 38 56 91 43 51 63 119 63 73 42 0 Total 43 146 282 263 67 7 808 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: 10 90 Facility:

Peach Bottom Units 2 & 3 Licensee:

Exelon Generation Company, LLC PSEG Nuclear, LLC Peach Bottom Nuclear Station Period of Record: October -December2008 Stability Class -Moderately Stable -316Ft-33Ft Winds Measured at 320 Feet Delta-T (F)Wind Speed (in mph)Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N NNE NE ENE E ESE SE SSE S SSW SW WSW WNNW Variable Total 4 55 70 33 7 0 169 Hours of calm in Hours of missing Hours of missing this stability class: wind measurements in this stability measurements in 0 stability class: 0 all stability classes: 10 91 Facility:

Peach Bottom Units 2 & 3 Licensee:

Exelon Generation Company, LLC PSEG Nuclear, LLC Peach Bottom Nuclear Station Period of Record: October -December2008 Stability Class -Extremely Stable -316Ft-33Ft Winds Measured at 320 Feet Delta-T (F):Wind Direction N NNE NE ENE E ESE SE SSE S SSW SW WSW W WNW NW NNW Variable Total 1-3 2 0 1 i 1 0 1 0 0 4-7 7 1 0 0 1 0 2 0 Wind Speed 8512 0 5 (in mph)13-18 0 0 0 0 0 0 0.0 0 0 1 1 2 1 0 0 0 19-24 '..24 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Total 9 6 1 1 2 0 3 0 0 1 8 12 11 9 5 1 0 0 4 0 2 2 3 1 1 0 1 0 2 0 0 10 24 36 5 0 0 75 Hours of calm in Hours of missing Hours of missing this stability class: wind measurements in this stability measurements in 0 stability class: 0 all stability classes:, 10 92 Facility:

Peach Bottom Units 2 & 3 Licensee:

Exelon Generation Company, LLC PSEG Nuclear, LLC Appendix A- ERRATA Data Section 93 Facility:

Peach Bottom Units 2 & 3 Licensee:

Exelon Generation Company, LLC PSEG Nuclear, LLC (Page Intentionally Left Blank)94 Facility:

Peach Bottom Units 2 & 3 Licensee:

Exelon Generation Company, LLC PSEG Nuclear, LLC ERRATA DATA Section The following list contains errors that were previously submitted in the 2007 Radiation Dose Assessment Report No.23 and the 2007 Radioactive Effluent Report No.50 , also attached are the revised pages Radioactive Effluent Report Page # in Section Error original report 12 9.A Liquid Last sentence omitted, all LLD's were satisfied for 2007 17 Attachment 2 Quarter Gamma Beta Dose, Iodine 13 1&133, Tritium & particulate Dose Included 18 Attachment 2 Iodine's reported in Particulates section as well as the Iodine's section, however, the total remains correct, iodine's were already subtracted out in the original submission Dose Assessment Report Page # in Section Error original report 1 1.Executive Maximum Dose for Liquids was changed from Summary 1.89E-02 to 2.59 E-02 (0.43%); Total quantity of Radioactive Material was changed from 1.72E-01 to 7.75E-01 (7.75%)6 B. Gaseous The year in paragraph 3 was changed to 2007 Pathway model 95 Facility:

Peach Bottom Units 2 & 3 Licensee:

Exelon Generation Company, LLC PSEG Nuclear, LLC 8. Changes to the ODCM: There were no changes to the ODCM for the 2007 reporting period.9. Minimum Detectable Concentrations:

A. Liquid: If a radionuclide was not detected, < LLD was reported for that isotope. Samples were analyzed with techniques that achieved the required Lower Limits of Detection (LLD) as specified in Offsite Dose Calculation Manual Specification Table 4.8.B.1, Radioactive Liquid Waste Sampling and Analysis.B. Gaseous: If a radionuclide was not detected, < LLD was reported for that isotope. Samples were analyzed with techniques which achieved the required Lower Limits of Detection (LLD) as specified in Offsite Dose Calculation Manual Specification Table 4.8.C.1, Radioactive Gaseous Waste Sampling and Analysis from Main Stack and Vent Stack. In all cases, the LLD requirements were satisfied.

96 Facility:

Peach Bottom Units 2 & 3 Licensee:

Exelon Generation Company, LLC PSEG Nuclear, LLC Attachment 2 Gaseous Effluents

-Summation Of All Releases Period: 2007 Unit: Peach Bottom Units 2 & 3 A. Fission & Activation Gases Quarter Quarter Quarter Quarter Est. Total Unit 1 2 3 4 Error %1. Total Release Ci 8.10E+01 1.52E+02 1.89E+02 1.16E+02 3.51E+01 2. Average release rate for the period pCi/sec 1.03E+01 1.93E+01 2.40E+01 1.47E+01 3. Percent of ODCM limit- Gamma 3.27E-02 1.41 E-01 7.49E-02 7.36E-02-Beta 1.30E-02 5.02E-02 2.92E-02 2.67E-02 4. Quarterly Gamma Dose mrad 3.27E-03 1.41 E-02 7.49E-03 7.36E-03 5. Quarterly Beta Dose mrad 2.59E-03 1.OOE-02 5.84E-03 5.33E-03 B. Iodine 1. Total iodine -131 Ci 1.666E-03 1.950E-03 3.469E-03 1.253E-03 1.76E+01 2. Average release rate for period pCi/sec 2.113E-04 2.474E-04 4.400E-04 1.590E-04 3. Percent of ODCM limit % *....C. Particulates

1. Particulates with half-lives

> 8 days Ci 9.690E-03 1.129E-02 1.508E-02 4.84E-03 1.94E+01 2. Average release rate for the period pCi/sec 1.229E-03 1.431E-03 1.913E-03 6.14E-04 3. Percent of ODCM limit % *....3. Gross alpha radioactivity Ci <LLD <LLD <LLD <LLD D. Tritium I I I 1. Total release Ci 8.461 E+0 5.844E+0012.329E+01 1.552E+O!

1.11E+01 1.Totareleas

2. Averaae release rate for the Deriod pCi/se 1.073E+001 7.412E-01 12.955E+001 1.97E+00 3. Percent of ODCM limit I ....E. Iodine 131 & 133,Tritium

& Particulate

1. Percent of ODCM limit % 5.403E-03 1.679E+00 7.319E+00 2.834E+O0 2. Quarterly Dose mrem 8.105E-04 2.519E-01 1.098E+00 4.250E-01* Limit is no longer applicable to iodine and particulate.

Section E provides limit.97 Facility:

Peach Bottom Units 2 & 3 Licensee:

Exelon Generation Company, LLC PSEG Nuclear, LLC Attachment 2 Gaseous Effluents for Elevated Release Point -Main Stack Period: 2007 Unit: Peach Bottom Units 2 & 3 INUCLIDES RELEASED CONTINUOUS MODE 1_ BATCH MODE 1.Fission gases Unit JQuarter uarter2 Quarter I Quarter Quarter Quarter2 Quarter Quarter Kr-85 Ci <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD Kr-85m Ci 1.23E+01 1.70E+01 2.45E+01 1.93E+01 <LLD <LLD <LLD <LLD Kr-87 Ci 1.12E+00 4.78E-01 1.16E+00 1.48E-01 <LLD <LLD <LLD <LLD Kr-88 Ci 6.79E+00 1.08E+01 1.49E+01 1.27E+01 <LLD <LLD <LLD <LLD Xe-133 Ci 1.98E+01 3.16E+01 7.01E+01 3.81E+01 <LLD <LLD <LLD <LLD Xe-135 Ci 2.46E+00 3.92E+00 3.62E+00 2.20E+00 <LLD <LLD <LLD <LLD Xe-135m Ci 2.26E+00 2.35E+00 3.42E+00 1.51 E+00 <LLD <LLD <LLD <LLD Xe-138 Ci 2.43E+01 3.13E+01 4.42E+01 1.47E+01 <LLD <LLD <LLD <LLD Ar-41 Ci 2.45E-01 7.61E-01 <LLD 2.81E-01 <LLD <LLD <LLD <LLD Xe-133m Ci <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD Unidentified Ci <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD Total for Period Ci 6.93E+01 9.83E+01 1.62E+02 8.88E+01 <LLD <LLD <LLD <LLD 12. lodines I , : : >:______ _,. ____ I _______ _ -___<:___ ____ :_1-131 Ci 3.25E-04 4.89E-04 6.52E-04 3.16E-041

<LLD <LLD <LLD <LLD 1-133 Ci 7.51E-04 1.20E-03 1.35E-03 4.13E-04 <LLD <LLD <LLD <LLD 1-135 Ci 2.35E-04 6.87E-04 8.88E-04 7.51 E-05 <LLD <LLD <LLD <LLD Total for Period Ci 1.31E-03 2.38E-03 2.89E-03 1 8.0 4 E-04 <LLD <LLD <LLD <LLD[3. Particulates I]____I___

___ ______ ___Mn-54 Ci <LLD <LLD 9.80E-06 7.50E-06 <LLD <LLD <LLD <LLD Co-58 Ci <LLD <LLD 1.25E-06 1.36E-06 <LLD <LLD <LLD <LLD Co-60 Ci <LLD 5.02E-06 2.90E-05 2.13E-05 <LLD <LLD <LLD <LLD Zn-65 Ci <LLD <LLD 3.21E-06 5.61E-06 <LLD <LLD <LLD <LLD Sr-89 Ci 6.20E-04 7.58E-04 5.47E-04 1.73E-04 <LLD <LLD <LLD <LLD Sr-90 Ci 2.13E-06 2.45E-06 1.96E-06 5.50E-07 <LLD <LLD <LLD <LLD Sb-125 Ci <LLD 1.54E-06 <LLD <LLD <LLD <LLD <LLD <LLD Cs-137 Ci 8.93E-06 6.33E-06 4.01E-06 6.29E-06 <LLD <LLD <LLD <LLD Ba-140 Ci 8.99E-04 6.85E-04 4.11E-04 6.97E-04 <LLD <LLD <LLD <LLD Ce-141 Ci <LLD <LLD 4.29E-07 <LLD <LLD <LLD <LLD <LLD La-140 Ci <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD Cs-134 Ci <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD Total for Period Ci 1.53E-03 1.46E-03 1.01E-03 9.12E-04 <LLD <LLD <LLD <LLD 98 Facility:

Peach Bottom Units 2 & 3 Licensee:

Exelon Generation Company, LLC PSEG Nuclear, LLC Peach Bottom Atomic Power Station 2007 Radiation Dose Assessment Report EXECUTIVE

SUMMARY

In accordance with the reporting requirements of Peach Bottom Offsite Dose Calculation Manual Specifications (ODCMS) Sections 3.8.E.2 and 3.10.3, this report summarizes the radiation doses due to the radioactive effluent releases from Peach Bottom Atomic Power Station Units 2 and 3 for the period January 1, 2007 through December 31, 2007.The 2007 calculated doses were compared to the appropriate ODCMS and Appendix I Design Objective limits (Table I-1). The maximum offsite total body dose, due to liquid releases was 2.59 E-02 mrem. The maximum offsite total body dose, due to gaseous releases was 2.06E-01 mrem.TABLE I-1 COMPARISON OF THE 2007 CALCULATED DOSES RESULTING FROM PBAPS EFFLUENT RELEASES TO ODCMS LIMITS MAXIMUM ODCMS AND APPENDIX DOSE % of A I DESIGN OBJECTIVE CATEGORY DOSE PATHWAY FROM ANNUAL LIMITS PBAPS A I. Liquid Effluents I1.a. Dose to total body from all pathways b. Dose to any organ from all pathways c. Total quantity of radioactive material, except tritium and dissolved gases Gaseous Effluents

  • a. Gamma air dose b. Beta air dose c. Dose to total body of an individual
d. Dose to skin of an individual
e. Dose to any organ (thyroid) from all pathways f. Total quantity of iodine-131 2.59E-02 0.43%2.44E-02 0.12%7.75E-01 2.91 E-01 5.61 E-02 2.06E-01 7.75%10 Ci 6 mrem 20 mrem 1.46%0.14%2.06%2.73E-01 0.91%5.48E+00 18.27%8.34E-03 0.42%20 mrad 40 mrad 10 mrem 30 mrem 30 mrem 2 Ci 10CFR50 Appendix I specifies dose from noble gases only for Category II (a, b, c and d).PBAPS doses presented for Category II (c and d) items include noble gas and particulate components.

99 Facility:

Peach Bottom Units 2 & 3 Licensee:

Exelon Generation Company, LLC P.SEG Nuclear, LLC Peach Bottom Atomic Power Station 2007 Radiation Dose Assessment Report The annual average X/Q, depleted X/Q and D/Q values were computed for gaseous radioactive effluents from the Unit 2 and Unit 3 off-gas stack and roof vents, using the dispersion methodologies of USNRC Regulatory Guide 1.111 (Ref. 7).Using GASPAR, two bounding dose calculations were performed for the receptor locations with the highest X/Q from the Unit 2 and Unit 3 roof vents (154A, 1,300 feet E) and from the Unit 2 and Unit 3 off-gas stack (2068A, 14,520 feet N) (Figures VI-1 and VI-2, respectively).

Gaseous release pathways considered included external radiation from the air and ground, inhalation and ingestion of vegetation, meat, and cow's milk. The inhalation and ingestion pathways were evaluated for the adult, teenager, child, and infant age groups. To assure that this analysis was conservative, it was assumed that all pathways existed at these two locations.

In addition to the bounding dose analysis calculation, an analysis for determining the doses from gaseous radioactive effluents to members of the public due to their activities inside the site boundary during 2007 was completed to comply with ODCMS Section 3.10.3. For purposes of this report, the security checkpoint (114A) located 1,300 feet N of the PBAPS Unit 2 and Unit 3 roof vents was chosen (Figure VI-1). This on-site location was used for measuring inhalation, plume and ground shine doses to the National Guardsmen and State Police. Continuous occupancy was assumed.Approximately 127 Ci of unidentified gaseous radioactive effluent activity released from PBAPS in 2007 were assigned to Kr-88 for calculating the Gamma Air, Beta Air and Plume doses. Kr-88 has the highest dose factor for gamma air dose, which is normally limiting, therefore the analysis remains conservative.

100 Facility:

Peach Bottom Units 2 & 3 Licensee:

Exelon Generation Company, LLC PSEG Nuclear, LLC Appendix B- Revised Copy of the ODCM 101 Facility:

Peach Bottom Units 2 & 3 Licensee:

Exelon Generation Company, LLC PSEG Nuclear, LLC (Page Intentionally Left Blank)102

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