ML091250436

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. 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)
v • d • e


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

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TABLE OF CONTENTS SECTION PAGE Introduction 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 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 Solid Waste and Irradiated Fuel Shipments 23 Solid Waste Shipped 25 Irradiated Fuel Shipments 27 Changes to Process Control Program (PCP) 27 Radiological Impact on Man 29 Radiological Impact on Man 31 Summary of Gaseous and Liquid Annual Doses 31 Liquid and Gaseous Effluent Radiation Monitors 31 Meteorological Data 33 Appendix A ERRATA Data Section 93 Appendix B Revised copy of the ODCM 101 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

Facility: Peach Bottom Units 2 & 3 Licensee: Exelon Generation Company, LLC PSEG Nuclear, LLC ,

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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 mRem/Yr - total body ODCMS 3.8.C.1.a

< 3000 mRem/Yr - skin

2. <10 mRad - air gamma quarterly air dose limits

<20 mRad - air beta ODCMS 3.8.C.2.a and b

3. <20 mRad - air gamma yearly air dose limits

<40 mRad - air beta ODCMS 3.8.C.2.c and d B. lodines, Tritium, Particulates with Half Life >8 days-

1. <1500 mRem/Yr - any organ ODCMS 3.8.C.1.b
2. <15 mRem - any organ quarterly dose limits ODCMS 3.8.C.3.a
3. <30 mRem - any organ yearly dose limits ODCMS 3.8.C.3.b C. Liquid Effluents
1. Concentration < 10 times 10 CFR 20, ODCMS 3.8.B.1 .a Appendix B, Table 2, Col. 2
2. *3.0 mRem - total body quarterly dose limits
  • 10 mRem - any organ ODCMS 3.8.B.2.a
3. <6.0 mRem - total body yearly dose limits

< 20 mRem - any organ ODCMS 3.8.B.2.b D. 40 CFR 190 and 10 CFR 72.104

  • 25 mRem - total body ODCMS 3.8.D.1.a
S 75 mRem - thyroid ODCMS 3.8.D.1 .b
  • 25 mRem - any other organ ODCMS 3.8.D.1.c

<*3.0 mRem - from liquid and ODCMS 3.8.D.1 .d gaseous effluent

< 55 mRem - thyroid from gases 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 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.Total
1. Tritium 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 II

[Nuclides Released

.Fission gases Unit D ___Continuous Quarter Quarter Mode------

Quarter Quarter Quarter Batch Mode 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-037.38E-03 8.59E-03 3.20E-03 <LLD <LLD <LLD <LLD

~3. Particulates__ _F K_____IZ

T -~ ____

Co-60 Ci <LLD 1.06E-05 <LLD 1.41 E-05 <LLD <LLD <LLD <LLDý Sr-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 E55.96E-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 WATER USED F. VOLUME OF DILUTION 20

Facility: Peach Bottom Units 2 & 3 Licensee: 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 1rter f[Quarter Quarter Quarter Quarter 111 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 J 1J8.79E-01 I 3.35E-01 17.51 E-01 8.91 E-01 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: Peach Bottom Units 2 & 3 Licensee: Exelon Generation Company, LLC PSEG Nuclear, LLC (Page Intentionally Left Blank) 22

Facility: Peach Bottom Units 2 & 3 Licensee: Exelon Generation Company, LLC PSEG Nuclear, LLC Attachment 3 Solid Waste and Irradiated Fuel Shipments 23

Facility: Peach Bottom Units 2 & 3 Licensee: Exelon Generation Company, LLC PSEG Nuclear, LLC (Page Intentionally Left Blank) 24

Facility: Peach Bottom Units 2 & 3 Licensee: 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: Peach Bottom Units 2 & 3 Licensee: Exelon Generation Company, LLC PSEG Nuclear, LLC cornressible waste, contaminated equipment, etc.

b 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: Peach Bottom Units 2 & 3 Licensee: Exelon Generation Company, LLC PSEG Nuclear, LLC (Page Intentionally Left Blank) 28

Facility: Peach Bottom Units 2 & 3 Licensee: Exelon Generation Company, LLC PSEG Nuclear, LLC Attachment 4 Radiological Impact on Man 29

Facility: Peach Bottom Units 2 & 3 Licensee: Exelon Generation Company, LLC PSEG Nuclear, LLC

~1j (Page Intentionally Left Blank) 30

Facility: Peach Bottom Units 2 & 3 Licensee: 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 Diati T 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: Peach Bottom Units 2 & 3 Licensee: Exelon Generation Company, LLC PSEG Nuclear, LLC (Page Intentionally Left Blank) 32

Facility: Peach Bottom Units 2 & 3 Licensee: Exelon Generation Company, LLC PSEG Nuclear, LLC Attachment 5 Meteorological Data 33

Facility: Peach Bottom Units 2 & 3 Licensee: Exelon Generation Company, LLC PSEG Nuclear, LLC (Page Intentionally Left Blank) 34

Facility: Peach Bottom Units 2 & 3 Licensee: Exelon Generation Company, LLC PSEG Nuclear, LLC 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: Peach Bottom Units 2 & 3 Licensee: Exelon Generation Company, LLC PSEG Nuclear, LLC (Page Intentionally Left Blank) 36

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 Unstable - 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 0 8 0 0 0 8 NNE 0 0 0 0 0 NE 3 1 0 0 0 4 ENE 12 2 0 0 0 1.4 E 10 14 0 0 0 24 ESE 2 9 0 0 0 11 SE 0 1 1 0 0 2 SSE 0 0 3 0 0 3 S 0 1 6 0 0 7 SSW 0 0 i 0. 0 1 SW 0 0 0 0 0 0 WSW 0 1 0 0 0 1 W 0 1 0 0 0 1 WNW 0 1 1 2 NW 0 3 1 0 0 4 NNW 0 4 1 0 0 5 variable 0 0 0 .0 0 0 Total 27 46 14 0 8 0 87 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 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 Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 0 12 0 0 0 0 12 NNE 1 0 1 0 0 0 2 NE 1 0 0 0 0 0 1 ENE 2 0 0 0 0 0 2 E 3 1 0 0 0 0 4 ESE 2 0 0 0 0 0 2 SE 0 0 0 0 0 0 0 SSE 0 0 2 0 0 0 2 S 0 2 3 0 0ý 0 5 SSW 0 0 0 0 0 0 0 SW 0 0 3 0 0 0 3 WSW 0 2 2 0 0 0 4 W 0 4 6 0 0 0 10 WNW 0 1 0 0 12 NW 0 71 2 0 0 8 NNW 0 7 3 0 0 0 10 Variable 0 0 0 0 0 0 0 Total 9 30 34 4 0 0 77 Hours of calm in this stability class; Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in 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 1-3 4-7 8-12 13-18 19-24 > 24 Total N 1 0 1 0 0 0 0 NNE 0. 0 0 0 0 0 0 NE 3 0 0 0 0 0 3 ENE 2 0 0 0 0 0 2 E 2 "I 0 0 0 0 3 ESE 0 2 0 0 0 0 2 SE 0 1 0 0 0 0 1 SSE 1 0 0 0 0 0 1 S 0 1 0 0 0 0 1 SSW 0 0 0 0 0 0 0 SW 0 2 0 0 0 0 2 WSW 0 1 2 0 0 0 3 W 0 s 4 2 0 0 11 NW 0 2 12 1 0 0 15 8 7 1 0 0 16 0

NNW 0 8 4 0 0 0 12 Variable 0 0 0 0 0 0 .0 Total 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: 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 - 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 12 1 0 0 0 27 0

NNE 11 1 0 0 12 NE 13 1 0 0 0 0 14 ENE 22 0 0 0 0 0 22 E 21 0 0 0 0 0 21 0

ESE 7 5 0 0 0 12 SE 5 20 8 0 0 0 33 SSE 15 11 1 0 0 0 27 S 1 9 5 0 0 0 15 SSW 0 S o0 9 4 0 0 0 SW 1 1 10 1 0 0 13.

WSW 1 9 9 4 0 0 23 W 1 19 27 11 0 59 WNW 2 22 52 14 0 0 90 NW 9 42 84 20 0 0 155 NNW 7 41 32 5 0 0 85 Variable 0 0 0 0 0 0 Total 116 210 235 55 1 0 617 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 40

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 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: 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 - 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 9 0 0 0 0 0. 9 NNE 1 0: 0 0 0 0 1 NE 4 0 0 0 0 0 4 ENE 13 0 0 0 0 0 13 E 15 0 0 0 0 0 15 ESE 19 1 0 0 0 0 2b SE 9 1 0 0 0 0 10 SSE 2 0 0 0 0 0 2 S 8 1 0 0 0 0 9 SSW 6 0 0 0 0 0 6 SW 12 5 0 0 0 0 17 WSW 27 12 0 0 0 0 39 W 17 4 0 0 0 0 21 WNW is 2 0 0 0 0 17 NW 16 0 0 0 0 0 16 NNW 7 0 0 0 0 0 7 Variable 0 0 0 0 0 0 0 Total 180 26 0 0 0 0 206 Hours of calm in this stability class: 6 Hours:of missing wind measurements in this stability class: I Hours of missing stability measurements in all stability classes: 17 42

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 - 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: 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 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: 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 - 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 o 0 0 0 0 0 0 0 0 0 0 0 0 0 NE 0 0 0 0 0 0 0 ENE E 0 0 1 0 0 0 1 0 1 2 0 0 0 3 ESE 0 0 1 0 0 0 1 SE SSE 0 0 0 0 0 0 0 S 0 0 0 6 1 0 7 SSW 0 0 1 1 0 0 2 SW 0 0 0 0 0 0 0 WSW 0 0 0 0 0 0 0 W

0 0 1 0 0 0 1 WNW 0 0 0 0 1 0 1 0 0 0 0 0 0 0 NNW 0 0 0 0 . 0 0 Variable 0 0 0 0 0 0 01 Total 0 2 6 7 2 0 17 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 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 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 NNE 0 NE 0 ENE 0" E 0 ESE 0 SE 0 SSE 0 S 0 SSW 0 SW 0 WSW 0 W

WNW 3 NW 2 0

Variable 0 Total 7 18 9 i 11 51 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 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 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 20 24 9 1 0 56 NNE 4 10 15 2 0 0 31 NE 4 12 3 0 0 0 19 0 0 ENE 5 7 4 0 16 0 0 E 4 7 9 1 21 0 0 ESE 0 13 27 8 48 1 0 SE 2 8 31 29 71 0 0 SSE 0 4 12 12 28 7 2 S 0 3 13 15 40 2 0 SSW 0 1 .7 11 21 3 3 SW 0 2 12 3 23 2 5 WSW 0 1 9 9 26 33 23 W 1 3 16 22 98 4 62 18 WNW 0 16 50 150 6 52 23 NW 0 23 59 163 46 15 NNW 0 28 56 51 196

0. 0 Variable 0 0 0 0 .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 Ion Generation Company, LLC PSEG Nuclear , LLC Peach Bottom Nuclear Station Period of Record: January - March 2008 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 20 18 5 0 46 2 12 11 2 0 27 NNE 4 11 4 2 0 21 ENE 3 16 6 0 0 25 ESE E 9 10 22 9 1 51 ESE 1 16 32 6 4 59 SE 1 14 21 4 1 42 SSE 7 14 23 14 5 64 S 5 16 17 41 19 104 SSW 4 8 31 9 16 70 SW 3 17 12 6 0 32 WSW 1 7 11 12 3 37 W 4 1 14 35 9 63 WN*W 2 3 24. 52 10 91 NW 1 7 34 45 7 96 NNW 1 11 28 18 2 60 Variable 0 0 0 0 0 0 Total 51 177 308 260 77 15 888 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 1 Hours of missing stability measurements in 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 Delta'T (F)

Winds Measured at 320 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total 0 1 0 0 0 0 N I 0 3 0 0 0 0 NNE 3 0 3 0 0 0 0 NE 1 0 01 0 0 0 ENE 1 0 0 0 0 0 0 E 0 0 0 0 0 0 0 ESE 0 SE 0 0 0 0 0 0 SSE 0 1 0 0 0 0 1 S 0 0 0 0 0 0 0 SSW 0 0 0 0 0 0 0 SW 0 0 2 0 0 0 2 WSW 0 1 0 0 0 0

W 3 0 0 0 3 0 0 WNW 0 0 0 0 0 0 0 0 0 0 NNW 1 0 0 0 2 0 0 Variable 0 0 0 0.

Total I 7. 7 0 . 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 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 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 19 1 0 0 0 24 NNE 13 2 0 0 0 0 15 NE 10 4 0 0 0 0 14 26 2 0 0 0 0 28 E 22 7 0 0 0 0 ESE 10 12 0 0 0 22 SE 2 11 2 0 0 0 15 SSE 1 3 1 0 0 0 .5 S 0 12 5 0 0 17 SSW 0 1 0 0 0 0 1 SW 0 0 0 0 0 1 WSW 0 0 0 0 0 0 0 W 0 2 0 0 0 0 2 WNW 0 1 0 0 0 2 3 0 0 0 11 NNW 0 26 4 0 0 0 30 Variable 0 0 0 0 0 0 0 Total 88 ill 17 0 0 0 216 flours of calm in this stability class:

Hours of missing wind measurements in this stability class: 18 Hours of missing stability measurements in 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 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

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 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 17 41 9 0 0 0 67 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 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 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 2 0 0 0 0 0 N 2 2 0 0 0 0 0 NNE 2 2 0 0 0 0 0 NE 2 2 0 0 0 0 0 ENE 5 5 0 0 0 0 0 E 5 6 0 0 0 0 0 ESE 6 6 0 0 0 0 0 SE 6 4 1 0 0 0 0 SSE 5 4 3 0 0 0 0 S 7 SSW 0 0 0 0 0 12 12 SW 25 16 0 0 0 0 41 WSW 30 29 0 0 0 0 59 W 39 24 0 0 0 0 63 17 5 0 0 0 0 22 NW 9 3 0 0 0 0 12 NNW 7 3 0 0 0 0 10 Variable 0 0 0 0 0 0 0 Total 175 84 0 0 0 0 259 Hours of calm in this stability class: 6 Hours of missing wind measurements in this stability class: 5 Hours of missing stability measurements in 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 t 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 1 0 0 0 0 0 1 N

0 0 0 0 0 0 0 NNE 3 0 0 0 0 0 3 NE 0 0 0 0 0 0 0 ENE 2 0 0 0 0 0 2 E

1 0 0 0 0 0 1 ESE 0 0 0 0 0 0 1 SE 0 0 0 0 0 0 0 SSE 3 0 0 0 0 0 3 S

6 0 0 0 0 0 6 SSW SW 32 4 0 0 0 0 36 WSW 42 6 0 0 0 0 48 w 19 1 0 0 0 0 20 WNW 8 0 0 0 0 0 8 NW 30 0 0 0 0 3 NNW 2 0 0 0 0 0 2 Variable 00 0 0 0 0 Total 122 11 0 0 0 0 133 Hours of calm in this stability class: 1 Hours of missing wind measurements in this stability class: 10 Hours of missing 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 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 6 0 0 7 NNE 0 1 0 0 0 1 NE 0 0 0 0 2

,ENE 0 1 0 0 5 4 5 1 11 E 0 0 ESE 0 4 1 0 11 0

SE 0 1 2 2 1 6 0

SSE 0 0 2 0 0 2 S 0 0 2 4 1 7 SSW 0 0 3 0 0 3 SW 0 0 0 0 0 0 WSW 0 0 0 0 0 0

W 0 0 0 0 0 0

WNW 0 0 0 0 0

NW 0 0 2 2 NIIW 0 0 2 3 2 7 Variable 0 0 0 0 0 0 Total 0 18 26 14 4 2 64 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 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 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 14 0 0 0 16 NNE 0 2 1 2 1 0 6 NE 1 3 0 0 0 0 4 ENE 1 6 2 1 0 10 E 0 7 2 0 0 9 ESE 0 4 4 1 0 10 SE 0 5 6 0 1 12 SSE 0 0 1 2 0 3 S 0 0 5 6 2 13 SSW 0 0 3 0 0 3 SW 0 0 3 0 0 3 WSW 0 0 2 0 3 0

W 0 0 4 0 1 0

WN"W 0 0 1 5 6 NW 0 0 4 1 3.

9 NNW 0 2 19 8 2 32 Variable 0 0 0 0 0 0 Total 2 31 67 28 9 3 140 Hours of calm in this stability class:

Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in. 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 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 14 15 19 7 0 55 NNE 2 17 11 10 8 2 50 NE 3 8 11 1 1 0 24 ENE 3 19 14 9 1 0 46 E 5 18 30 7 6 0 66 ESE 1 12 15 14 3 7 52 SE 0 8 26 11 2 1 48 SSE 0 5 29 8 0 0 42 S 0 12 13 21 6 0 52 SSW 1 4 13 9 4 0 31 SW 1 .5 9 13 6 0 34 WSW 0 8 7 28 9 1 53 W 1 9 20 18 3 3 54 0 7 2 WNW 9 23 27 68 NW 0 8 22 30 13 2 75 NNW 0 16 46 27 9 2 100 Variable 0 0 0 0 0 0 0 Total 17 1.72 304 252 85 20 850 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 0 Hlours of missing stability measurements in 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 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 9 10 4 0 23 NNE 2 2 12 1 1 0 18 NE 0 2 9 0 0 13 24 ENE 1 5 10 10 1 0 27 E 0 10 14 2 2 0 28 ESE 0 14 17 13 1 0 45 SE 2 3 15 3 0 0 23 SSE 1 13 14 4 1 0 33 S 5 12 37 18 13 85 SSW 2 15 30 17 3 0 67 SW 3 20 28 14 3 0 68 WSW 2 8 20 23 4 0 57 W 1 7 .22 23 3 0 56 WNW 3 6 15 29 4 0 57 NW 4 8 23 40 10 0 85 NNW 5 5 14 22 5 0 51 Variable 0 0 0 0 0 0 0 Total 31 130 289 229 55 13 747 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 1 Hours of missing stability measurements in 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 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 5 NNE 2 6 NE 1 3 ENE 0 1 E 0 1 ESE 0 0 SE 1 3 SSE 0 1 S 4 4 SSW 2 6 SW 1 I" WSW 3 6 W 10 17 WNW 4 10 NW 8 16 NNW 5 10 Variable 0 0 Total 6 31 42 11 0 0 90 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 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 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 6 0 0 0 0 11 NNE 4 0 0 0 0 0 4 NE 4 1 0 0 0 0 5 ENE 9 0 0 0 0 0 9 E 9 1 0 0 0 0 10 ESE 7 2 .0 0 0 0 9 SE 7 0 0 0 23 SSE 2 22 3 0 0 0 27 S 0 4 1 0 0 0 5 SSW 0 2 0 0 0 0 2 Sw 0 3 3 0 0 6

.0 WSW 0 3 0 0 0 3 0

W 0 0 0 0 0 0 0

WNW 0 1 0 0 0 .0 1

0 NW 1 0 0 0 0 1

.5 0 NNW 8 0 0 0 13 0

Variable 0 0 0 0 0 0 Total 53 69 7 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: 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 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 16 0 0 0 0 20 NNE 5 3 0 0 0 0 8 NE 3 0 0 0 0 0 3 ENE 9 0 0 0 *0 0 9 E 6 0 0 0. 0 0 6 ESE 4 0 0 0 0 0 4 SE 0 .3 0 0 0 0 3 SSE 2 16 1 0 0 0 19 S 0 8 0 0 0 0 8 SSW 1 5 0 0 0 0 6 SW 1 4 1 0 0 0 6 WSW 2 4 0 0 0 0 6 W 0 1 0 0 0 0 1 WNW i 1 0 0 0 0 2 NW 2 11 0 0 0 0 13 NNW . 23 1 0 0 0 25 Variable 0 0 0 0 0 0 0 Total 41 95 3 0 0 0 139 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: 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 Delta-T (F)

Winds Measured at 33 Feet Wind Speed (in mph)

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

-- --- - --. - - - -. -.-- .--

-. -- .--

- -.-- - ---

N 0 0 7 NNE 0 0 4 NE 0 0 4 ENE 0 0 0 E 0 0 2 ESE 0 0 3 SE 0 0 3 SSE 0 0 5 S 0 0 4 SSW 0 0 4 SW 0 0 8 WSW 0 0 5 W 0 0 2 WNW 0 0 1 NW 0 0 11 NNW 0 0 12 Variable 0 0 0 Total 24 47 4 0 0 0 75 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: 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 r 2008 Stability Class - Neutral - ISO Ft-33Ft Delta-T (F)

Winds Measured at 33 Feet Wind speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 33 41 1 0 0 75 NNE 12 2 0 0 0 14 NE 15 0 0 0 0 15 ENE 9 0 0 0 0 9 E 10 0 0 0 0 10 ESE 5 1 0 0 0 6 SE 7 9 0 0 0 16 SSE 18 28 3 0 0 49 S 16 9 0 0 0 25 SSW 9 5 0 0 0 14 SW 8 19 1 0 0 28 WSW 11 12 0 0 0 23 W 6 14 0 0 0 20 WNW 14 15 2 0 0 31 NW 18 34 0 0 0 52 NNW 22 36 2 0 0 60 variable 0 0 0 0 0 0 Total 213 225 9 0 0 0 447.

Hours of calm in this stability class: 2 Hours of missing wind measurements in this stability class: 2 Hours of missing stability measurements in 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 r 2008 Stability Class - Slightly Stable - 150 Ft-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 38 55 6 1 0 0 100 NNE 11 3 0 0 0 0 14 NE 7 0 0 0 0 0 7 ENE 10 0 0 0 0 0 10 E 5 0 0 0 0 0 5 ESE 18 0 0 0 0 0 1i SE 48 30 0 0 0 0 78 SSE 57 49 1 0 0 0 107 S 46 19 1 0 0 0 66 SSW 33 10 0 0 0 43 SW 42 25 0 6 0 0 68 WSW 33 .15 0 0 0 48 W 32 33 0 0 0 0 65 WNW 35 31 0 0 0 0 66 NW 34 41 3 0 0 0 78 NNW 29 21 3 1 0 0 54 Variable 0 0 0 0 0 0 0 Total 478 332 15 2 0 0 827 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: 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 Delta-T (F)

Winds Measured at 33 Feet wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total 0 0. 0 0 0 0 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. 0.

SE 0 0 0 0 0 0 SSE 0 0 0 0 0 0 0 S

1 0 0 0 0 9 SSW 8 31 0 0 0 0 130 SW 99 WSW 85 8 0 0 0 0 93 W 18 13 0 0 0 0 31 WNW 4 2 0 0 0 0 6.

NW I 0 0 0 0 0 1 NNW 0 0 0 0 0 0 0 Variable 0 0 0 0 0 0 0 Total 215 55 0 0 0 0 270 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: 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 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 NNE 0 0 0 0 NE 0 1 4 5 ENE 0 3 5 8 E 0 5 4 9 ESE 0 3 10 15 SE 0 1 .3 4 SSB 0 1 1 0

S 0 0 0 SSW 0 0 0 0 0

SW 0 0 0 WSW. 0 0 0 0 W 0 0 0 0 0

WNW 0 0 0 0

NW 0 0 0 0

VNNW 0 0 0 0

variable 0 0 0 Total 0 13 27 2 0 0 42 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: 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 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 6 1 0 0 8 ENE 0 5 0 0 0 0 5 E 0 4 1 0 0 0 5 ESE 0 5 2 0 0 0 7 SE .0 0 3 0 0 0 3 SSE 0 0 2 1 0 0 3 S 0 0 2 1 0 0 3 SSW 0 0 0 1 0 0 1 SW 0 0 0 2 0 0 2 WsW 0 1 W 0 0 0 WNW 0 0 0 0 0 VNW 0 1 0

Variable 0 0 Total 0 16 16 7 0 0 39 Hours of calm in this stability class:

Hours of missing wind measurements in this stability class: 0 Hours, of missing stability measurements in all stability classes: 11 73

Facility: Peach Bottom Units 2 & 3 Licensee: Exelon C3eneration Company, LLC PSEG Nuclear, LL(

Peach Bottom Nuclear Station.

Period of Record: July - September 2008 Stability Class - Slightly Unstable - 31GFt-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 o 2 0 0 0 NNE 0 1 2 2 5 NE 0 6 3 1 10 ENE 1 2 0 1 0 4 E 1 5 1 0 0 0' 7 ESE 0 3 1 1 0 0 5 SE 0 2 1 3 0 6 SSE 0 2 4 3 0 0 9 S

0 14 1 2 0: 18 SSW 0 2 1 0 0 5 SW 4 2 0 0, 6 0 0 WSW 0 01 7 0 0 0 7 0

W 00 0 0 0 0 0 0 WNW 0 0 0 0 0 0 NW 0 1 1 2 0 0 4 NNW 0 0 8 1 0 0 9 Variable 0 0 0 0 0 0 Total 2 25 50 18 2 0 97 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: 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 Delta-T (F)

Winds Measured at 320 Feet Wind Speed tin mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 9 24 16- 6 0 0 55 NNE 9 15 22 23 1 0 70 NE 6 12 7 10 5 0 40 ENE 4 10 5 0 0 0 19 E 12 18 10 2 0 0 42 ESE 7 4 12 16 1 0 40 SE 5 8 11 10 0 0 34 SSE 5 5 15 5 0 0 30 S 4 10 17 25 1 0 57 SSW 1 10 7 3 0 0 21 SW 1 27 19 8 0 0 55 Wsw 2 17 17 4 1 0 41 W 2 6 20 2 0 0 30

2. 14 20 9 2 0 47 NW 3 19 27 24 0 0 73 NNW 6 36 57 24 1 1 125 Variable 0 0 0 0 0 0 0 Total 78 235 282 171 12 1 779 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: Ii 75

Facility: Peach Bottom Units 2 & 3 Licensee: Exelo n Generation Company, LLC PSEG Nuclear, ILLC Peach Bottom Nuclear Station Period of Record: July 7 September 2008 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 13 15 10 0 42 NNE 14 20 7 10 54 NE 9 15 4 0 33 ENE 17 13 3 0 38 E 19 20 2 0 45 ESE 12 17 5 0 39 SE 12 14 3 0 34 SSE 14 25 14 1 59 S 26 34 32 3 100 SSW 15 42 13 1 74 SW 16 27 13 60 0

WSW 9 20 12 42 0

W 6 13 11 31 WNW 5 11 28 4 52 NW 8 15 38 7 70 NNW 10 14 14 3 43 Variable 0 0 0 0 0 Total 53 205 315 209 29 5 816 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:

76

Facility: Peach Bottom Units 2 & 3 Licensee: Exelon Generation Company, LLC PSEG Nuclear, LLC PeachBottom Nuclear Station Period of Record: July - September 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 11 8 2 22 NNE 1 3 0 7 NE 4 0 0 6 ENE 2 0 0 3 E 1 0 0 2 ESE 1 0 0 3 SE 1 0 2 SSE 4 3 0 9 S 4 1 5 12 SSW 13 3 5 23 SW 10 8 3 24 WSW 10 16 7 36 W 8 11 7 26 WNW 5 8 14 34 NW 6 10 16 35 NNW 7. 16 0 33 variable 0 0 0 0 Total 28 88 88 65 8 0 277 Hours of calm in this stability class:

Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in 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 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 8 18 NNE 0 3 3 6 NE 0 2 1 3 ENE 0 0 1 1 E 1 0 0 1 ESE 0 0 0 0 SE 0 0 0 0 SSE 0 0 0 0 S 1 0 0 1 SSW 3 0 0 3 SW 1 1 1 3 WSW 0 3 5 11 W 6 4 3 14 WNW 2 7 2 17 NW 5 5 13 25 NN*W 2 14 19 41 Variable 0 0 0 0 Total 22 48 56 16 2 0 144 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: 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 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 8 0 0. 12 NNE 6 3 9 NE 4 0 4 ENE 4 0 4 E 6 0 6 ESE .0 2 2 SE 0 1 1 SSE 0 3 6 S 0 0 3 SSW 0 0 0 SW 0 5 5 Wsw 1 2 5 5

W 0 1 TWNW 0 2 4 NW 0 4 NNW 0 6 11 Variable 0 0 0 Total 25 37 20 0 0 0 82 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 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) linds Measured at 33 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8- 12 13-18 19-24 > 24 Total N 5 3 0 17 NNE 4 0 0 7 NE 6 0 0 6 ENE 6 0 0 6 E 7 0 0 7 ESE 1 0 0 1 SE 0 0 0 4 SSE 0 3 0 7 S 0 1 0 3

.SSW 1 0 0 4 SW 0 0 0 4 WSW 4 0 7 0

W 4 1 7 0

WNW 2 1 18 3 I0 0 21 NNW 0 5 0 12 Variable 0 0 0 0 Total 33 54 42 2 0 0 131 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 80

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 - 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.

0 17 N 6 9 2 0 0 0 1 NNE 1 0 0 0 0.

0 NE 4 0 0 0 0 4.

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 1 1 1 0 0 0 3 SSE 1 2 0 0 0 0 3 S 1 1 1 0 0 0. 3 SSW 0 3 1 0 0 0 4 SW 1 0 0 0 0 0 1 WSW 0 2 1 0 0 0 3 W 0 7 7 1 0 0 15 WNW 0 3 11 1 0 0 15 NW 1 2 11 1 2 0 17 NNW 3 3 4 o 0 0 10 Variable 0 0 0 0. 0 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 Delta-T (F)

Winds Measured at 3.3 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 18 56 23 0 0 0 97 NNE 21 8 0 0 0 0 29 NE is 0 0 0 0 is ENE 10 0 0 0 0 10 0

E 14 1 0 0 0 i1 ESE 7 3 0 0 0 10 SE 13 22 8 0 0 0 43 SSE 6 47 8 5 0 0 66 S 2 23 23 0 0 0 48

-SSW 5 6 S 2 0 0 18 Sw .7 7 1 0 0 20 WSW 2 14 7 0 0 0 23 W 3 24 50 2 0 0 79 WNW 6 37 51 15 0 0 109 NW 10 43 53 13 1 0 120 NNW 13 29 26 0 0 0 68 Variable 0 0 0 0 0 0 Total 152 320 259 38 1 0 770 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 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 er2008 Stability Class - Moderately Stable 150 Ft-33Ft Delta-T (F)

Winds Measured at 33 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total 0 2 N 2 0 0 0 0 0 2 NNE 2 0 0 0 0 NE 2 0 0 0 0 0 2 ENE 7 0 0 0 0 0 7 E 7 0 0 0 0 0 7 ESE 5 0 0 0 0 0 5 SE 8 0 0 .0 0 0 8 SSE 3 0 0 0 0 0 3 S 4 0 0 0 0 0 4 SSW 10 1 0 0 0 0 11 SW 19 6 0 0 0 0 25 WSW 30 16 0 0 0 0 46 W 19 16 0 0 0 0 35 WNW 12 4 0 0 0 0 16.

NW 15 2 0 0 0 0 17 NNW 4 0 0 0 0 0 4 Variable 0 0 0 0 0 0 0 Total 149 45 0 0 0 0 194 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 1 Hours of missing 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 er2008 Stability Class Extremely Stable - 150 Ft-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 NNE 0 0 0 0 0 0 NE 0 0 0 0 0 0 ENE 0 0 0 0 0 0 E 3 0 0 0 0 3 ESE 0 0 0 0 0 0 SE 0 0 0 0 0 0 SSE 1 0 0 0 0 1 S 4 0 0 0 0 4 SSW 3 0 0 0 0 3 SW 31 17 0 0 48 WSW 31 .5 0 0 0 36 W 19 0 0 0 0 19 WNW 8 0 0 0 0 8 NW 1 0 0 0 0 1 NNW 0 0 0 0 0 0 0 Variable 0 0 0 0 0 0 0 Total 101 22 0 0 0 0 123 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 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 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 NNE 0 NE 0 ENE 0 E 0 ESE 0 SE 0 SSE 0 S 0 SSW 0 SW 0 WSW 0 W 0 WNW NW 0 NNW 0 0

Variable Total 0 33 0 0 0 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 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 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 2 NNE 0 0 3 3 0 6 0

NE 0 0 0 0 0 0 0

ENE 2 3 0 0 0 E 1 0 0 0 0 3 ESE 0 1 0 0 0 14 SE 0 0 2 0 0 0 2 SSE 0 0 1 2 1 0 4 S 0 0 0 3 0 0 3 SSW 0 1 0 0 0 1 SW 0 0 3 1 4 WSW 0 0 2 0 S' 0 3 W 0 0 0 0 6 1 7 WNW 0 0 4 NW 0 0 0 0 6 0 0 2 1 1 0 4 Variable 0 0 0 0 0 0 0 Total 3 6 17 18 6 5 55 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 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 - 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 20 30 50 19 0 124 NNE 2 11 24 16 I 0 54 NE 4 10 a 2 0 0 24 ENE 3 is 10 0 0 0 28 E 9 13 10 3 1 0 36 ESE 5 a 8 5 1 0 27 SE 1 7 19 3 5 1 36 SSE 2 9 24 20 2 2 59 S 0 11 28 22 15 1 77 SSW 0 6 11 S 8 2 32 5 1 SW 1 8 13 5 33 WSW 1 5 14 9 .7 0 36 W 1 17 33 51 20 122 WNW 2 4 37 47 40 26 156 NW 2 13 33 52 38 17 155 NNW 1 20 18 27 9 0 '75 Variable 0 0 0 0 0 0 Total 38 161 304 299 202 70 1074 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 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 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 7 23 8 2 43 NNE 11 16 a 3 44 NE 7 6 0 0 15 ENE 6 5 0 0 is E 8 9 3 0 24 ESE 8 8 5 1 28 SE 15 14 2 5 38 SSE 12 32 9 56 11 S 12 39 25 91 SSW 14 12 9 5 43 SW 7 15 20 6 51 WSW 9 18 31 3 63 W 4 20 77 16 119 WNW 5 24 24 8 63 NW 14 24 28 4 73 NNW 7 17 14 2 42 variable 0 0 0 0 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 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

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

1NW*

NNW Variable Total 4 55 70 33 7 0 169 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 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 Delta-T (F)

Winds Measured at 320 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8512 13-18 19-24 '..24 Total N 2 7 0 0 0 0 9 NNE 0 1 5 0 0 0 6 NE 1 0 0 0 0 1 ENE i 0 0 0 0 1 E 1 1 0 0 0 2 ESE 0 0 0 0 0 0 SE 1 2 0. 0 0 3 SSE 0 0 0 0 0 0 S 0 0 0 0 0 SSW 1 0 0 0 0 1 SW 0 4 1 0 0 8 WSW 0 2 1 0 0 12 W 2 3 2 0 0 11 WNW 1 1 1 0 0 9 NW 0 1 0 0 0 5 NNW 0 2 0 0 0 Variable 0 0 0 0 0 Total 10 24 36 5 0 0 75 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 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:

Ifa 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 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.Totareleas
1. Total release Ci 8.461 E+0 5.844E+0012.329E+01 1.552E+O! 1.11E+01
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

a. Dose to total body 2.59E-02 0.43% 6 mrem from all pathways
b. Dose to any organ 2.44E-02 0.12% 20 mrem from all pathways
c. Total quantity of 7.75E-01 7.75% 10 Ci radioactive material, except tritium and dissolved gases I1. Gaseous Effluents *
a. Gamma air dose 2.91 E-01 1.46% 20 mrad
b. Beta air dose 5.61 E-02 0.14% 40 mrad
c. Dose to total body of 2.06E-01 2.06% 10 mrem an individual
d. Dose to skin of an 2.73E-01 0.91% 30 mrem individual
e. Dose to any organ 5.48E+00 18.27% 30 mrem (thyroid) from all pathways
f. Total quantity of 8.34E-03 0.42% 2 Ci iodine-131 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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