ML11122A099

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Independent Spent Fuel Storage Installation - Annual Radioactive Effluent Release Report 53, January 1, 2010 Through December 31, 2010
ML11122A099
Person / Time
Site: Peach Bottom  Constellation icon.png
Issue date: 04/29/2011
From: Stathes G
Exelon Nuclear
To:
Document Control Desk, Office of Nuclear Material Safety and Safeguards, Office of Nuclear Reactor Regulation
References
Download: ML11122A099 (91)


Text

Exelon.

Peach Bottom Atomic Power Station www.exeloncorp.com 1848 Lay Road Nuclear Delta, PA 17314 April 29, 2011 U. S. Nuclear Regulatory Commission Document Control Desk Washington, DC 20555-0001

Subject:

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

Facility Operating License DPR-44 and DPR-56 NRC Docket 50-277 and 50-278 and ISFSI Docket 72-29 Annual Radioactive Effluent Release Report 53 January 1, 2010 through December 31, 2010 Enclosed is the Annual Radioactive Effluent Release Report 53, January 1, 2010, through December 31, 2010, for Peach Bottom Atomic Power Station Units 2 and 3.

This report is being submitted in compliance with 10CFR50.36a (2) and the Technical Specifications of Operating Licenses DPR-44 and DPR-56, and to fulfill the requirements of ODCM 3.10.2. Additionally, this report is submitted to satisfy annual effluent reporting requirements for the ISFSI required by the Offsite Dose Calculation Manual (ODCM).

There was no revision made to the ODCM for the 2010 reporting period.

There are no commitments contained in this letter.

If you have any questions or require additional information, please do not hesitate to contact us.

Sincerely, Garey L. Stathes, Plant Manager Peach Bottom Atomic Power Station GLS/RJR/AMC/bcb Enclosure (2) ccn 11-37 cc:

William Dean, Administrator, Region I, USNRC G. F. Wunder, Project Manager, USNRC LID F. Bower, USNRC Senior Resident Inspector, PBAPS A4

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. 53 JANUARY 1, 2010 THROUGH DECEMBER 31, 2010 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 Supplemental Information 3

Regulatory Limits 4

Maximum Permissible Concentrations 5

Average Energy 5

Measurements and Approximations of Total Radioactivity 5

Batch Releases 7

Average Stream Flow 8

Abnormal Releases 8

Changes to ODCM 10 Minimum Detectable Concentrations 11 Violations 11 Effluent Summary 12 Gaseous Effluents - Summation of All Releases 13 Gaseous Effluents for Elevated Release Point - Main Stack 14 Gaseous Effluents for Ground Level Release Points -

15 Unit 2 and Unit 3 Roof Vents & Aux Boiler Stack Liquid Effluents - Summation of All Releases 16 Liquid Effluents Release Points-Liquid Radwaste, RHR Leaks 17 Tritium Leaks & Auxiliary Boiler Leak Solid Waste and Irradiated Fuel Shipments Solid Waste Shipped Irradiated Fuel Shipments Changes to Process Control Program (PCP) Radiological Impact on Man Radiological Impact on Man 40 CFR 190 Doses Liquid and Gaseous Effluent Radiation Monitors and Instrumentation Meteorological Data 18 19 20 20 21 22 22 22 23 80 85 Appendix A Appendix B ERRATA Data Section Revised copy of the ODCM Technical Concurrences: (for accuracy of information)

Chemistry / Wdwaste Manager I

1"-"-

Date

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, 2010 through December 31, 2010. 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 four unplanned releases of liquid radioactive material. Two releases were from RHR heat exchangers, one was from a groundwater tritium plume and one from a leak of radioactive water through the auxiliary boilers.

There was one unplanned gaseous release during work on recoating the Torus Dewatering Tank.

The maximum calculated organ dose (Bone) from iodines, tritium, carbon-14 (C-

14) and particulates to any individual due to gaseous effluents was 5.49E-01 mrem, which was approximately 1.83E+00 percent of the annual limit. Carbon-14 was included as a principal nuclide for the first time in this report. The large increase in organ dose from gaseous effluents compared to previous years was due to C-14. The maximum calculated gamma air dose in the UNRESTRICTED Area due to noble gas effluents was 1.78E-01 mrad, which was 8.90E-01 percent of the annual limit.

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

There were no changes made to RW-AA-100 "Process Control Program for Radioactive Waste" in 2010.

There was one change needed for the 2009 Effluent Report. In the 2009 report, Revision 13 of the ODCM was included without the change matrix. Therefore, Appendix A contains the change descriptions for Revision 13 of the ODCM.

There were no changes made to the ODCM during the 2010 reporting period.

Therefore, Appendix B is left intentionally blank.

Exelon common procedures, which provide consistent expectations and standards for Radioactive Effluents Controls Program, were used to generate this report. They are:

1

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

  • CY-AA-170-000, Radioactive Effluent and Environmental Monitoring Program

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

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

1. Regulatory Limits A. Noble Gases:
1.

< 500 mrem/Yr

< 3000 mrem/Yr

2.

<10

<20 m rad m rad

- 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

3.

<20 m rad

<40 mrad 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 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 C. Liquid Effluents

1.

Concentration < 10 times 10 CFR 20, Appendix B, Table 2, Col. 2

2.

<3.0

<10

3.

<6.0

<20 mrem mrem mrem mrem

- total body

- any organ

- total body

- any organ quarterly dose limits ODCMS 3.8.B.2.a yearly dose limits ODCMS 3.8.B.2.b D. 40 CFR 190 and 10 CFR 72.104 (Annual Dose Equivalent)

<25 mrem

<75 mrem

< 25 mrem

< 3.0 mrem

< 55 mrem

- total body

- thyroid

- any other organ

- from liquid and gaseous effluent

- thyroid from gases ODCMS 3.8.D.1.a ODCMS 3.8.D.1.b ODCMS 3.8.D.1.c ODCMS 3.8.D.1.d ODCMS 3.8.D.1.e 4

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.1 a. 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 pCi/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 weekly to determine the isotopic mixture of noble gas activity released for the week.

Airborne effluent gaseous activity was continuously monitored and recorded in accordance with ODCMS Table 4.8.C.1. The data from the noble gas radiation monitor 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 Tables. If activity was found in the grab isotopic analysis, the isotopic mixture for the Noble Gas Monitor was determined from that isotopic mixture.

5

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

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 analyses of Sr-89, Sr-90 and gross alpha.

D. Carbon-14 (C-14)

The amount of C-14 (Ci) released was estimated using the guidance from EPRI Technical Report 1021106, Estimation of Carbon-14 in Nuclear Power Plant Gaseous Effluents. The C-14 was released primarily through the stack (97%)

with a small amount (3%) through the plant vents. The effluent in liquid effluents was determined to not be significant. The resulting annual dose to a child from gaseous releases was 5.49E-01 mrem to the bone.

E. 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 analyses of Fe-55, P-32, Sr-89, Sr-90 and gross alpha.

About 900 gal of water from Peach Bottom Unit 1 that were contaminated with tritium ( 0.01 Ci) were transported to Units 2 & 3 radwaste system and discharged through the laundry drain system as normal discharges. The dose contributions and isotope quantities from the releases were added to this Radioactive Effluent Release Report for the applicable reporting periods.

F. 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.

6

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

5. Batch Releases:

A. Liquid:

QTR 1 QTR 2 QTR 3 QTR 4 Number of batch releases:

40 10 22 13 Total Time for batch releases (minutes) 9.51 E+03 1.84E+03 5.08E+03 1.53E+03 Maximum time period for batch release 985 262 310 278 (minutes):

Average time period for batch release 238 184 231 118 (minutes):

Minimum time period for batch release 40 45 35 40 (minutes):

Average Stream Flow Dilution volume (liters):

3.58E+10 9.39E+09 2.24E+10 4.90E+09

  • Stream flow not used for dose calculations 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):

7

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: Four abnormal release sources A. Liquid:
1. Event description - 2C Residual Heat Removal (RHR) to High Pressure Service Water (HPSW) leak On 06/16/2010, routine sampling of the HPSW effluent to the discharge canal detected low-level radioactive contamination. Subsequent investigation determined that primary coolant water was leaking through the Unit 2C RHR heat exchanger into the 2A loop of the HPSW system. The leak rate range was 0.0111 GPM to 0.900 GPM to the end of September 2010. The 2C RHR heat exchanger was repaired September 21, 2010.

Analysis of Releases It was estimated that the contaminated water released to the discharge canal for all of 2010 was responsible for 1.463E-03 mrem total body dose (Adult), and 2.20 E-03 mrem Critical Organ (Teen Liver) 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 analyses 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 - 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 primary coolant water was leaking through the Unit 3A RHR heat exchanger into the 3A loop of the HPSW system. The 3A RHR 8

Facility: Peach Bottom Units 2 & 3 Licensee: Exelon Generation Company, LLC PSEG Nuclear, LLC continued to be a source of contamination to the end of 2010. The leak rate ranged from was 0.0003 GPM to 0.0075 GPM throughout the year. The repair of this leak is in the Peach Bottom Corrective Action Program (CAP).

Refer to Issue Report (IR) 694879 and Action Request (AR) A163809.

Analysis of Releases It was estimated that the contaminated water released to the discharge canal for all of 2010 was responsible for 1.14E-04 mrem total body dose (Adult), and 2.02E-04 mrem Critical Organ (Teen Liver) 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 analyses 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 - Ground Water Plume During 2010, 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 be discharge into the intake or 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 concentration ranging from 1.10E-05 uCi/ml to 3.OOE-04 uCi/mI, the ground water released to the discharge canal was responsible for 9.80E-04 mrem total body dose (Child), and 9.80E-04 mrem Critical Organ dose (Child). This dose contribution was well below the limits specified in the ODCM.

9

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

4. Event Description - Auxiliary Boiler Water from the Auxiliary Boiler steam that was contaminated with tritium entered the sample sink drain. Samples ranged from 2.10E-05 uCi/mI to 2.82E-05 uCi/mI. There was also Co-60 at a concentration of 8.00E-09 uCi/mI found in one sample. The discharge canal is a monitored discharge point.

Analysis of Releases The estimated flow to the discharge canal is at a rate of 3 GPM. For this release, 1.87 E-07 mrem total body dose (Child), and 2.47E-07 mrem Critical Organ dose (Adult - GI-LLI). This dose contribution was well below the limits specified in the ODCM.

B. Gaseous:

1. Event Description - Torus Dewatering Tank Internal Inspection During inspection and repair of the Torus Dewatering Tank, a tent was built for workers to enter and exit the work area. The initial discovery of Co-60 occurred on 04/12/10 through 08/01/10. Air samples detected Co-60 ranging from 1.65 E-1 1 uCi/cc to 1.58E-08 uCi/cc. One sample also detected Cs-1 37 at 5.62E-1 0 uCi/cc.

Analysis of Releases The estimated flow through the ventilation was 240 CFM. For this time period there was 0.00 mrem/year Thyroid dose rate and 7.47E-03 mrem/year dose rate for Lung. This dose contribution was well below the limits specified in the ODCM.

8. Changes to the ODCM:

No changes to the ODCM were made in 2010.

10

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

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.

10. Violations:

A. There were no violations for the 2010 reporting period.

11

Facility: Peach Bottom Units 2 & 3 Licensee: Exelon Generation Company, LLC PSEG Nuclear, LLC Effluent Summary 12

Facility: Peach Bottom Units 2 & 3 Licensee: Exelon Generation Company, LLC PSEG Nuclear, LLC Gaseous Effluents - Summary Of All Releases Period: January 1, 2010 through December 31, 2010 Unit: Peach Bottom Est. Total A. Fission & Activation Gases Units Quarter 1 Quarter 2 Quarter 3 Quarter 4 Error %

1. Total Release Ci 1.90E+02 2.01 E+02 2.29E+02 1.53E+02 3.51E+0"
2. Average Release Rate for Period pCi/sec 2.44E+01 2.56E+01 2.88E+O1 1.92E+01
3. Gamma Air Dose mrad 4.32E-02 5.24E-02 4.68E-02 3.32E-02
4. Beta Air Dose mrad 2.96E-02 3.57E-02 3.22E-02 2.28E-02
5. Percent of ODCM Limit

- Gamma Air Dose 4.32E-01 5.24E-01 4.68E-01 3.32E-01

- Beta Air Dose 1.48E-01 1.79E-01 1.61E-01 1.14E-01 B.

lodines 1.Total-1-131 Ci 3.76E-04 6.22E-04 7.47E-04 2.15E-04 1.76E+01

2. Average Release Rate for Period pCi/sec 4.84E-05 7.92E-05 9.40E-05 2.71 E-05
3. Percent of ODCM limit C.

Particulate

1. Particulates with T 1/2 > 8 days Ci 1.78E-04 1.77E-04 2.02E-04 1.05E-04 1.94E+01
2. Average Release Rate for Period pJCi/sec 2.29E-05 2.26E-05 2.55E-05 1.32E-05
3. Percent of ODCM limit D.

Tritium j1. Total Release Ci 8.28E+00 7.62E+00 1.06E+01 1.27E+01 1.11E+01

2. Average Release Rate for Period pCi/sec 1.07E+00 9.70E-01 1.34E+00 1.60E+00
3. Percent of ODCM limit E.

Gross Alpha

1. Total Release Ci 0.OOE+00 0.OOE+00 O.OOE+00 0.OOE+00 4.OOE+02
2. Average Release Rate for Period pCi/sec 0.OOE+00 0.00E+00 0. OOE+00 0.00E+00
3. Percent of ODCM limit F.

Carbon-14

1. Total Release Ci 8.88E+00 8.88E+00 I8.88E+00 8.88E+00 2.Average Release Rate for Period iCi/sec 1.14E+00 1.13E+00 1.12E+00 1.12E+00 G.

Iodine 131 & 133, Tritium, Carbon-14 & Particulate

11. Or an Dose mrem 1.40E-01 1.41E-01 1.42E-01 1.38E-01
2. Percent of ODCM Limit 9.31 E-01 9.42E-01 9.49E-01 9.23E-01

13

Facility: Peach Bottom Units 2 & 3 Licensee: Exelon Generation Company, LLC PSEG Nuclear, LLC Gaseous Release Point: Elevated Release Period: January 1, 2010 through December 31, 2010 Unit: Peach Bottom I'Nuclides Released Continuous Mode Batch Mode

1. Fission gases Unit Quarter Quarter Quarter Quarter Quarter Quarter Quarter Quarter 1

2 3

4 1

2 3

4 Kr-85 Ci

<LLD

<LLD

<LLD

<LLD

<LLD

<LLD

<LLD

<LLD Kr-85m Ci

<LLD

<LLD 1.48E+00

<LLD

<LLD

<LLD

<LLD

<LLD Kr-87 Ci 3.22E-01

<LLD

<LLD

<LLD

<LLD

<LLD

<LLD

<LLD Kr-88 Ci

<LLD

<LLD

<LLD

<LLD

<LLD

<LLD

<LLD

<LLD Xe-133 Ci

<LLD

<LLD 1.59E+01

<LLD

<LLD

<LLD

<LLD

<LLD Xe-135 Ci 1.03E+01 1.17E+01 6.70E-01 2.15E+01

<LLD

<LLD

<LLD

<LLD Xe-135m Ci

<LLD

<LLD

<LLD

<LLD

<LLD

<LLD

<LLD

<LLD Xe-137 Ci

<LLD

<LLD

<LLD

<LLD

<LLD

<LLD

<LLD

<LLD Xe-138 Ci 6.43E+00 3.57E+00 2.21E+01

<LLD

<LLD

<LLD

<LLD

<LLD Ar-41 Ci

<LLD

<LLD

<LLD

<LLD

<LLD

<LLD

<LLD

<LLD Unidentified Ci 4.45E+00 3.95E+00 7.51E+00 2.02E+01

<LLD

<LLD

<LLD

<LLD Total for Period Ci 2.15E+01 1.92E+01 4.77E+01 4.17E+01

<LLD

<LLD

<LLD

<LLD 2.Ilodines-1-131 Ci 1.13E-04 1.67E-04 2.49E-04 1.82E-04

<LLD

<LLD

<LLD

<LLD 1-133 Ci 2.45E-04 4.45E-04 5.57E-04 2.71 E-04

<LLD

<LLD

<LLD

<LLD 1-135 Ci

<LLD

<LLD

<LLD

<LLD

<LLD

<LLD

<LLD

<LLD Total for Period Ci 3.58E-04 6.12E-04 8.06E-04 4.53E-04

<LLD

<LLD

<LLD

<LLD

3. Particulates Sr-89 Ci 1.08E-04 1.01E-04 8.19E-05 5.13E-05

<LLD

<LLD

<LLD

<LLD Sr-90 Ci

<LLD

<LLD

<LLD

<LLD

<LLD

<LLD

<LLD

<LLD Cs-134 Ci

<LLD

<LLD

<LLD

<LLD

<LLD

<LLD

<LLD

<LLD Cs-137 Ci

<LLD

<LLD

<LLD 1.01 E-06

<LLD

<LLD

<LLD

<LLD Ba-140 Ci 6.21 E-05 4.09E-05 3.76E-05 2.90E-05

<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 I 1.18E-06

<LLD

<LLD

<LLD

<LLD Co-58 Ci

<LLD

<LLD 6.58E-07

<LLD

<LLD

<LLD

<LLD

<LLD Co-60 Ci 1.75E-06 8.25E-06 1.73E-05 1.75E-05

<LLD

<LLD

<LLD

<LLD Mo-99 Ci

<LLD

<LLD

<LLD

<LLD

<LLD

<LLD

<LLD

<LLD Aqg-110m Ci

<LLD

<LLD

<LLD 7.10E-07

<LLD

<LLD

<LLD

<LLD Ce-141 Ci

<LLD

<LLD

<LLD 2.27E-07

<LLD

<LLD

<LLD

<LLD Ce-144 Ci

<LLD

<LLD

<LLD

<LLD

<LLD

<LLD

<LLD

<LLD Fe-59 Ci

<LLD

<LLD

<LLD

<LLD

<LLD

<LLD

<LLD

<LLD Zn-65 Ci

<LLD

<LLD

<LLD 4.16E-06

<LLD

<LLD

<LLD

<LLD Total for Period Ci 1.72E-04 1.50E-04 1.37E-04 1.05E-04

<LLD

<LLD

<LLD

<LLD

4. Tritium I*

H-3 Ci 4.04E-01 4.43E-01 7.86E-01 5.61 E-01

<LLD

<LLD

<LLD

<LLD

5. Gross Alpha Gross Alpha Ci

<LLD

<LLD

<LLD

<LLD

<LLD

<LLD

<LLD

<LLD

6. Carbon-14 I

K C-14 Ci 8.61E+00 8.61E+00 8.61E+00 8.61E+00

<LLD

<LLD

<LLD

<LLD 14

Facility: Peach Bottom Units 2 & 3 Licensee: Exelon Generation Company, LLC PSEG Nuclear, LLC Gaseous Release Point: Ground Level Releases Period: January 1, 2010 through December 31, 2010 Unit: Peach Bottom Nuclides Released Continuous Mode Batch Mode

1. Fission gases Unit Quarter Quarter Quarter Quarter Quarter Quarter Quarter Quarter 1

2 3

4 1

2 3

4 Kr-85 Ci

<LLD

<LLD

<LLD

<LLD

<LLD

<LLD

<LLD

<LLD Kr-85m Ci

<LLD

<LLD

<LLD

<LLD

<LLD

<LLD

<LLD

<LLD Kr-87 Ci

<LLD

<LLD

<LLD

<LLD

<LLD

<LLD

<LLD

<LLD Kr-88 Ci

<LLD

<LLD

<LLD

<LLD

<LLD

<LLD

<LLD

<LLD Xe-133 Ci

<LLD

<LLD

<LLD

<LLD

<LLD

<LLD

<LLD

<LLD Xe-135 Ci

<LLD

<LLD

<LLD

<LLD

<LLD

<LLD

<LLD

<LLD Xe-135m Ci

<LLD

<LLD

<LLD

<LLD

<LLD

<LLD

<LLD

<LLD Xe-138 Ci

<LLD

<LLD

<LLD

<LLD

<LLD

<LLD

<LLD

<LLD Ar-41 Ci

<LLD

<LLD

<LLD

<LLD

<LLD

<LLD

<LLD

<LLD Unidentified Ci 1.68E+02 1.82E+02 1.81E+02 1.11E+02

<LLD

<LLD

<LLD

<LLD Total for Period Ci 1.68E+02 1.82E+02 1.81E+02 1.11E+02

<LLD

<LLD

<LLD

<LLD

2. lodines 14 1-131 Ci 2.63E-04 4.55E-04 4.98E-04 3.31E-05

<LLD

<LLD

<LLD

<LLD 1-133 Ci 4.07E-04 7.89E-04 1.20E-03 1.08E-04

<LLD

<LLD

<LLD

<LLD 1-135 Ci

<LLD

<LLD

<LLD

<LLD

<LLD

<LLD

<LLD

<LLD Total for Period Ci 6.70E-04 1.24E-03 1.69E-03 1.41 E-04

<LLD

<LLD

<LLD

<LLD

3. Particulates I<..

Sr-89 Ci

<LLD

<LLD

<LLD

<LLD

<LLD

<LLD

<LLD

<LLD Sr-90 Ci

<LLD

<LLD

<LLD

<LLD

<LLD

<LLD

<LLD

<LLD Cs-134 Ci

<LLD

<LLD

<LLD

<LLD

<LLD

<LLD

<LLD

<LLD Cs-137 Ci 6.75E-06

<LLD

<LLD

<LLD

<LLD

<LLD 1.75E-04

<LLD Ba-1 40 Ci

<LLD

<LLD

<LLD

<LLD

<LLD

<LLD

<LLD

<LLD La-140 Ci

<LLD

<LLD

<LLD

<LLD

<LLD

<LLD

<LLD

<LLD Cr-51 Ci

<LLD

<LLD

<LLD

<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 2.73E-05 6.49E-05

<LLD

<LLD 2.71 E-05 4.79E-03

<LLD Mo-99 Ci

<LLD

<LLD

<LLD

<LLD

<LLD

<LLD

<LLD

<LLD Ag-110m Ci

<LLD

<LLD

<LLD

<LLD

<LLD

<LLD

<LLD

<LLD Ce-1 41 Ci

<LLD

<LLD

<LLD

<LLD

<LLD

<LLD

<LLD

<LLD Ce-144 Ci

<LLD

<LLD

<LLD

<LLD

<LLD

<LLD

<LLD

<LLD Fe-59 Ci

<LLD

<LLD

<LLD

<LLD

<LLD

<LLD

<LLD

<LLD Zn-65 Ci

<LLD

<LLD

<LLD

<LLD

<LLD

<LLD

<LLD

<LLD Total for Period Ci 6.75E-06 2.73E-05 6.49E-05

<LLD

<LLD 2.71 E-05 4.97E-03

<LLD

4. Tritium I

I H-3 Ci 7.88E+00 7.181+00 9.83E+00 1.22E+01

<LLD

<LLD

<LLD

<LLD

5. Gross Alpha B,.

A.

Gross Alpha Ci

<LLD

<LLD

<LLD

<LLD

<LLD

<LLD

<LLD

<LLD

6. Carbon-14 7-_,

C-14 Ci 2.66E-01 2.66E-01 2.66E-01 2.66E-01

<LLD

<LLD

<LLD

<LLD 15

Facility: Peach Bottom Units 2 & 3 Licensee: Exelon Generation Company, LLC PSEG Nuclear, LLC Liquid Effluents - Summary Of All Liquid Radwaste Releases Period: January 1, 2010 through December 31, 2010 Unit: Peach Bottom Es.

otal A. Fission & Activation Products Units Quarter 1 Quarter 2 Quarter 3 Quarter 4 Error %

1. Total Release not including Ci 8.58E-04 1.99E-02 3.60E-02 1.34E-02 2.11E+01 tritium, gases, alpha
2. Average Diluted concentration pCi/mI 1.75E-12 2.97E-11 5.97E-11 2.28E-1 1 during period
3. Percent of ODCM Limit

-Total Body Dose 5.87E-06 O.OOE+00 3.47E-04 4.03E-05

-Organ Dose 1.23E-05 1.23E-05 1.23E-05 1.23E-05 B.

Tritium Es.

I ot Units Quarter 1 Quarter 2 Quarter 3 Quarter 4 Error %

1. Total Release Ci 2.50E+01 2.85E+01 3.07E+01 2.74E+01 A 40F+(
2. Average diluted concentrationI duAvrige dld cpCi/ml 5.11E-08 4.26E-08 5.09E-08 4.67E-08 durinl period
3. Percent of 10CFR20 limit 5.11E-03 4.26E-03 5.09E-03 4.67E-03 C.

Dissolved and Entrained Gases I

I-Est.

I otai Units Quarter I Quarter 2 Quarter 3 Quarter 4 Error %

1.Total Release Ci 2.81E-05 1.23E-05 3.41E-05 5.86E-06 2.11E+01

2. Average diluted concentration pj/l 5.75E-14 1.84E-14 5.65E-14 9.98E-15
3. Percent of ODCM limit 2.87E-08 9.18E-09 2.82E-08 4.99E-09 D.

Gross Alpha Activity Est. Iota]

Units Quarter 1 Quarter 2 Quarter 3 Quarter 4 Error %

1. Total Release Ci 1.85E-06 1.62E-08 7.33E-07] 4.89E-08 12.30E+01 E.

volume of Waste Released prior to dilution Liters 2.18E+061 4.26E+05 1.27E+06 2.33E+05 IF. Volume of Dilution Water I

I Used During Period Liters I 4.89E+1 11 6.70E+1 1 6.03E+1 15.87E+11 16

Facility: Peach Bottom Units 2 & 3 Licensee: Exelon Generation Company, LLC PSEG Nuclear, LLC Liquid Release Point: Liquid Radwaste Period: January 1, 2010 through December 31, 2010 Unit: Peach Bottom Nuclides Released Continuous Mode Batch Mode Fission &

Unit Activation Quarter Quarter Quarter Quarter Quarter Quarter Quarter Quarter Products 1

2 3

4 1

2 3

4 Sr-89 Ci 2.65E-07 4.48E-09 2.03E-07 1.35E-08

<LLD

<LLD

<LLD

<LLD Sr-90 Ci

<LLD

<LLD

<LLD

<LLD

<LLD

<LLD

<LLD

<LLD Cs-134 Ci

<LLD 2.39E-08 1.65E-06 1.10E-07

<LLD

<LLD

<LLD

<LLD Cs-137 Ci 1.78E-05 4.88E-07 2.21E-05 1.47E-06

<LLD

<LLD 7.98E-06 3.95E-07 1-131 Ci

<LLD

<LLD

<LLD

<LLD

<LLD

<LLD

<LLD

<LLD Co-58 Ci 6.47E-06 3.75E-03 9.04E-03 4.33E-03

<LLD

<LLD

<LLD

<LLD Co-60 Ci 4.24E-04 2.36E-05 9.03E-03 1.87E-03 5.96E-05

<LLD 2.34E-05

<LLD Fe-59 Ci

<LLD

<LLD

<LLD 2.51 E-04

<LLD

<LLD

<LLD

<LLD Zn-65 Ci 1.06E-04 6.85E-05 1.69E-04 3.42E-05

<LLD

<LLD

<LLD

<LLD Mn-54 Ci 1.26E-04 5.37E-06 2.43E-04 1.62E-05

<LLD

<LLD

<LLD

<LLD Cr-51 Ci

<LLD

<LLD

<LLD 5.96E-07

<LLD

<LLD

<LLD

<LLD Zr-95 Ci

<LLD

<LLD 3.68E-04 1.49E-04

<LLD

<LLD

<LLD

<LLD Nb-95 Ci

<LLD 2.24E-04 2.29E-04 9.27E-05

<LLD

<LLD

<LLD

<LLD Mo-99 Ci

<LLD

<LLD

<LLD

<LLD

<LLD

<LLD

<LLD

<LLD Tc-99m Ci

<LLD

<LLD

<LLD

<LLD

<LLD

<LLD

<LLD

<LLD Ba-140 Ci

<LLD 3.28E-07 1.49E-05 9.91E-07

<LLD

<LLD

<LLD

<LLD La-1 40 Ci

<LLD

<LLD

<LLD

<LLD

<LLD

<LLD

<LLD

<LLD Ce-141 Ci

<LLD

<LLD

<LLD

<LLD

<LLD

<LLD

<LLD

<LLD Ag-110m Ci

<LLD

<LLD

<LLD

<LLD

<LLD

<LLD

<LLD

<LLD Fe-55 Ci 1.18E-04 1.51 E-02 1.57E-02 6.27E-03

<LLD

<LLD

<LLD

<LLD Ce-144 Ci

<LLD

<LLD

<LLD

<LLD

<LLD

<LLD

<LLD

<LLD P-32 Ci

<LLD 3.65E-09 2.53E-07 1.69E-08

<LLD

<LLD

<LLD

<LLD Cs-136 Ci

<LLD 7.56E-04 1.09E-03 4.72E-07

<LLD

<LLD

<LLD

<LLD Tc-1 04 Ci

<LLD 4.07E-08 2.82E-06 2.51 E-07

<LLD

<LLD

<LLD

<LLD Cs-1 38 Ci

<LLD

<LLD 6.40E-05 3.58E-04

<LLD

<LLD

<LLD

<LLD Total for Period Ci 7.99E-04 1.99E-02 3.60E-02 1.34E-02 5.96E-05

<LLD 3,14E-05 3.95E-07 Dissolved Entrained Gases X-133 Ci

<LLD

<LLD

<LLD

<LLD

<LLD

<LLD

<LLD

<LLD Xe-135 Ci

<LLD

<LLD

<LLD

<LLD 2.81E-05 1.23E-05 3.41E-05 5.86E-06 Tritium H-3 Ci 1.80E+01 2.70E+01 2.70E+01 2.68E+01 7.01E+00 1.52E+00 3.68E+00 6.35E-01 Gross Alpha Gross Alpha Ci 1.85E-06 1.62E-08 7.33E-07 4.89E-08

<LLD

<LLD

<LLD

<LLD 17

Facility: Peach Bottom Units 2 & 3 Licensee: Exelon Generation Company, LLC PSEG Nuclear, LLC Solid Waste and Irradiated Fuel Shipments 18

Facility: Peach Bottom Units 2 & 3 Licensee: Exelon Generation Company, LLC PSEG Nuclear, LLC A. SOLID WASTE SHIPPED OFF SITE FOR BURIAL OR DISPOSAL (Not irradiated fuel)

V

1. Type of Waste units 2010 Est. error %

a: Spent resin, filters, sludges, evaporator bottoms, etc M3 3.29E+01 Ci 2.96E+01 25 b: Dry compressible waste, contaminated equipment, etc.

M3 9.74E+02 Ci 5.27E+00 25 c: Irradiated components, control rods, etc.

M3 N/A I

Ci N/A N/A d: Other(describe) oil M3 1.14E+01 I

Ci 2.58E-06 25

2. Estimate of major nuclide composition (by type of waste) a: SDent resin, filters. sludges, evaporator bottoms. etc abundance nuclide (no cutoff) activity (Ci)

I H-3 C-14 Cr-51 Mn-54 Fe-55 Fe-59 Co-58 Co-60 Ni-63 Zn-65 Sr-89 Sr-90 Zr-95 Nb-95 Ag-110m Sb-1 22 Sb-1 24 1-131 Cs-1 34 Cs-1 37 Ba-1 40 La-1 40 Ce-141 Ce-144 Nd-147 Eu-1 52 Hf-175 Pu-238 Pu-241 Am-241 Cm-242 Cm-243 0.100%

0.906%

0.000%

3.616%

26.188%

0.000%

0.029%

51.362%/o 2.000%

4.089%

0.000%

0.032%

0.000%

0.000%

0.412%

0.000%

0.000%

0.000%

1.483%

9.326%

0.000%

0.000%

0.000%

0.362%

0.000%

0.015%

0.000%

0.000%

0.078%

0.000%

0.000%

0.001%

2.97E-02 2.68E-01 7.57E-06 1.07E+00

7. 75E+00 1.11 E-04 8.46E-03 1.52E+01 5.92E-01 1.21E+00 1.30E-04 9.61 E-03 2.06E-05 8.33E-07 1.22E-01 1.22E-46 1.93E-05 6.87E-1 7 4.39E-01 2.76E+00 7.72E-i 1 3.68E-45 1.27E-05 1.07E-01 1.63E-15 4.39E-03 1.67E-05 1.02E-04 2.31 E-02 2.94E-05 1.15E-05 1.62E-04 19

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

abundance nuclide (no cutoff) activity (Ci)

H-3 0.045%

2.38E-03 C-14 0.188%

9.90E-03 Cr-51 0.302%

1.59E-02 Mn-54 5.789%

3.05E-01 Fe-55 24.556%

1.29E+00 Fe-59 0.141%

7.44E-03 Co-58 0.408%

2.15E-02 Co-60 48.601%

2.56E+00 Ni-63 1.530%

8.06E-02 Zn-65 4.726%

2.49E-01 Sr-89 0.054%

2.84E-03 Sr-90 0.049%

2.58E-03 Nb-95 0.074%

3.88E-03 Ag-110m 0.420%

2.21E-02 Cs-134 1.338%

7.05E-02 Cs-137 11.533%

6.08E-01 Ce-144 0.216%

1.14E-02 Eu-1 52 0.000%

4.47E-08 Pu-238 0.000%

1.59E-05 Pu-241 0.030%

1.59E-03 Cm-242 0.000%

5.58E-06 Cm-243 0.001%

2.83E-05 c: Irradiated components, control rods, etc.

I abundance nuclide (no cutoff)

Iactivity (Ci)

None for 2010 d: Other escribe) oil abundance nuclide (no cutoff) activity (Ci)

Co-60 28.976%

7.47E-07 Cs-137 22.149%

5.71 E-07 Ce-144 48.875%

1.26E-06

3. Solid Waste Disposition Number of shipments Mode of Transportation Destination 7

hiQhway Energy Solutions (Clive, UT) 32 highway Energy Solutions (Oak Ridge, TN)

B. IRRADIATED FUEL SHIPMENTS (Disposition)

No shipment of irradiated fuel were made during the reporting period of 2010.

C.

Changes to Process Control Program (PCP)

There no changes made to RW-AA-100 "Process Control Program for Radioactive Waste" in 2010.

20

Facility: Peach Bottom Units 2 & 3 Licensee: Exelon Generation Company, LLC PSEG Nuclear, LLC Radiological Impact on Man 21

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

1. Radiological Impact on Man A summary of gaseous and liquid radiation annual doses to MEMBERS OF THE PUBLIC as calculated by the ODCM follows:

Location

% of Effluent Applicable Organ stimated Age Distance Direction Applicable Limit Unit Efunn Dose Group (meters) (toward)

Limit Noble Gas Gamma-Air 1.78E-01 All 1097 SSE 8.90E-01 20 mrad Dose Noble Gas Beta - Air Dose 1.21E-01 All 1097 SSE 3.03E-01 40 mrad Noble Gas Total Body 2.68E-01 All 1097 SSE 2.68E+00 10 mrem (Gamma)

Noble Gas Skin (Beta) 4.89E-01 All 1097 SSE 1.63E+00 30 mrem

Iodine, Particulate, Bone 5.49E-01 Child 1097 SSE 1.83E+00 30 mrem Carbon-14 &

Tritium Liquid Total Body 1.18E-05 Adult Site Boundary 1.97E-04 6

mrem Liquid Liver 1.85E-05 Teen 9.25E-05 20 mrem Direct Radiation Total Body

<LLD All 1150 [ SSE

<LLD 22 mrem 40 CFR Part 190 Compliance Total Dose Total Body 2.68E-01 All 1148 SSE 1.07E+00 25 mrem Total Dose Thyroid 6.50E-01 All 1148 SSE 2.60E+00 25 mrem Total Dose Bone 6.50E-01 All 1148 SSE 8.67E-01 75 mrem Total Dose Bone 6.50E-01 All 1148 SSE 2.17E+01 3

mrem Total Dose Liver 1.85E-05 All 1148 SSE 6.17E-04 3

mrem Total Dose Thyroid 6.50E-01 All 1148 SSE 1.18E+00 55 mrem Doses calculated were well below all ODCM limits.

2. 40 CFR 190 Doses The annual dose equivalent to a real individual who is located beyond the SITE BOUNDARY from all uranium fuel cycle sources within 8 kilometers were well below 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.

22

Facility: Peach Bottom Units 2 & 3 Licensee: Exelon Generation Company, LLC PSEG Nuclear, LLC Meteorological Data 23

Facility: Peach Bottom Units 2 & 3 Licensee: Exelon Generation Company, LLC PSEG Nuclear, LLC Peach Bottom Nuclear Station Period of Record: January - March 2010 Stability Class -

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

Winds Measured at 33 Feet Wind Direction Wind Speed (in mph) 1-3 4-7 8-12 13-18 19-24

> 24 Total N

NNE NE ENE 1

11 0

4 13 6

0 2

E 10 8

1 10 ESE SE SSE S

SSW SW WSW W

0 0

0 0

0 0

4 0

1 0

0 6

2 0

0 0

0 0

0 0

0 0

1 2

3 1

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

6 4

0 15 0

18 0

11 0

15 0

4 0

0 0

0 0

0 1

0 1

8 0

15 WNW NW NNW Variable Total 0

0 0

0 9

21 6

17 8

14 0

0 0

0 1

0 18 0

30 0

23 0

22 0

0 0

0 29 86 60 0

176 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:

2 24

Facility: Peach Bottom Units 2 & 3 Licensee: Exelon Generation Company, LLC PSEG Nuclear, LLC Peach Bottom Nuclear Station Period of Record: January -

March 2010 Stability Class -

Moderately Unstable 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 1-3 4-7 0

10 1

0 2

0 3

0 2

0 3

2 0

2 0

0 0

0 0

0 0

1 0

3 1

10 2

17 1

11 0

14 0

0 Wind Speed (in mph) 8-12 13-18 19-24

> 24 Total 2

0 0

0 0

0 0

0 0

0 2

0 5

32 48 17 0

13 1

2 3

2 5

2 0

0 0

3 3

17 57 69 31 0

Total 15 70 106 Hours of calm in this stability class:

17 0

0 208 0

Hours of missing wind measurements in this stability class:

0 Hours of missing stability measurements in all stability classes:

2 25

Facility: Peach Bottom Units 2 & 3 Licensee: Exelon Generation Company, LLC PSEG Nuclear, LLC Peach Bottom Nuclear Station Period of Record: January -

March 2010 Stability Class - Slightly Unstable Winds Measured at 150Ft-33Ft Delta-T (F) 33 Feet 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 Total 3

0 0

0 0

0 0

0 0

1 1

0 0

12 18 6

0 11 0

1 0

1 0

2 0

0 2

3 1

9 18 27 11 0

Total 4

32 41 this stability class:

9 0

0 86 Hours of calm in Hours of missing 0

wind measurements in this stability class:

0 Hours of missing stability measurements in all stability classes:

2 26

Facility: Peach Bottom Units 2 & 3 Licensee: Exelon Generation Company, LLC PSEG Nuclear, LLC Peach Bottom Nuclear Station Period of Record: January -

March 2010 Stability Class - Neutral 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

WNW NW NNW Variable 1-3 4-7 8-12 13-18 19-24

> 24 Total 9

29 25 6

18 6

7 0

1 4

2 0

12 6

6 10 0

39 19 8

0 0

7 10 7

5 3

5 12 42 81 73 47 0

39 2

0 0

0 0

3 4

4 0

1 0

13 91 170 81 0

408 1

0 0

0 0

0 4

0 2

0 1

0 2

15 47 2

0 74 88 50 33 6

18 13 24 12 12 7

9 12 69 193 296 140 0

Total 141 358 1

0 982 Hours of calm in this stability class:

0 Hours of missing wind measurements in this stability class:

0 Hours of missing stability measurements in all stability classes:

2 27

Facility: Peach Bottom Units 2 & 3 Licensee: Exelon Generation Company, LLC PSEG Nuclear, LLC Peach Bottom Nuclear Station Period of Record: January -

March 2010 Stability Class - Slightly Stable Winds Measured at 150Ft-33Ft Delta-T (F) 33 Feet Wind Speed (in mph)

Wind Direction N

NNE NE ENE E

1-3 12 8

20 19 19 4-7 8-12 13-18 19-24

> 24 Total 6

6 6

0 3

ESE SE SSE S

SSW SW WSW W

WNW NW 17 11 10 16 5

14 1

0 0

0 0

0 1

2 3

1 0

1 6

8 4

7 4

1 5

0 0

0 0

0 0

1 0

0 0

0 0

0 0

2 0

0 3

0 0

0 0

0 0

0 0

0 0

0 0

0 0

0 0

0 0

0 19 0

14 0

26 0

19 0

22 0

28 0

28 0

21 0

15 0

6 17 49 15 71 0

12 0

67 0

92 0

77 0

33 0

33 12 54 11 11 15 13 18 5

2 0

33 Variable 0

197 0

279 0

0 Total 0

512 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:

2 28

Facility: Peach Bottom Units 2 & 3 Licensee: Exelon Generation Company, LLC PSEG Nuclear, LLC Peach Bottom Nuclear Station Period of Record: January -

March 2010 Stability Class - Moderately Stable Winds Measured at 150Ft-33Ft 33 Feet Delta-T (F)

Wind Speed (in mph)

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

> 24 Total 2

NNE NE ENE E

ESE SE SSE S

SSW SW WSW 6

1 3

4 2

3 2

2 3

10 0

0 0

0 0

0 0

0 0

0 0

0 0

0 0

0 0

0 0

0 0

2 6

1 3

0 0

4 0

0 0

0 2

3 2

2 3

0 7

11 W

12 6

NW NNW Variable Total of calm in of missing of missing 7

2 6

3 3

2 1

0 0

0 0

0 0

0 0

0 0

0 0

0 0

0 0

0 0

4 7

3 0

12 0

18 0

18 0

10 75 25 0

100 Hours Hours Hours this stability class:

wind measurements in this stability measurements in 0

stability class:

0 all stability classes:

2 29

Facility: Peach Bottom Units 2 & 3 Licensee: Exelon Generation Company, LLC PSEG Nuclear, LLC Peach Bottom Nuclear Station Period of Record: January -

March 2010 Stability Class -

Extremely Stable 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

WNW NW NNW Variable 1-3 4-7 8-12 13-18 19-24

> 24 Total 0

3 3

5 5

1 2

5 3

3 7

13 13 12 6

2 1

84 1

3 3

5 5

1 2

5 3

3 8

14 13 13 6

2 1

Total 4

0 0

0 0

88 Hours of calm in this stability class:

Hours of missing wind measurements in this Hours of missing stability measurements in 5

stability class:

0 all stability classes:

2 30

Facility: Peach Bottom Units 2 & 3 Licensee: Exelon Generation Company, LLC PSEG Nuclear, LLC Peach Bottom Nuclear Station Stability Period of Record: January - March 2010 Class -

Extremely Unstable 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 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 0

1 1

8 6

5 0

0 0

0 5

0 0

0 0

0 0

0 2

0 1

0 Total 0

12 14 2

1 0

29 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:

2 31

Facility: Peach Bottom Units 2 & 3 Licensee: Exelon Generation Company, LLC PSEG Nuclear, LLC Peach Bottom Nuclear Station Period of Record: January - March 2010 Stability Class - Moderately Unstable 316Ft-33Ft Delta-T (F)

Winds Measured at 320 Feet Wind Speed (in mph)

Wind Direction N

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

1-3 0

0 0

0 0

0 0

0 0

0 0

0 0

4-7 8-12 13-18 19-24

> 24 Total 0

0 0

0 0

0 0

0 0

0 0

0 0

5 0

0 1

4 7

2 0

1 0

1 6

6 WNW NW NNW Variable Total 0

0 0

0 1

0 1

0 2

4 0

4 2

0 2

13 7

3 1

0 0

0 0

9 8

0 0

23 0

12 21 26 14 0

73 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:

2 32

Facility: Peach Bottom Units 2 & 3 Licensee: Exelon Generation Company, LLC PSEG Nuclear, LLC Peach Bottom Nuclear Station Period of Record: January -

March 2010 Stability Class -

Slightly Unstable 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 Wind Speed (in mph) 8-12 13-18 19-24

> 24 Total 1-3 4-7 0

2 0

2 0

0 0

2 0

3 0

0 0

1 0

0 0

0 0

0 0

0 0

2 0

0 0

0 0

1 0

2 0

0 2

1 0

0 0

1 0

0 0

1 1

1 12 14 21 4

0 1

0 0

0 0

0 0

0 0

0 0

0 2

21 9

2 0

7 4

0 2

3 4

3 0

0 1

3 7

22 51 43 15 0

Total 0

15 43 58 35 14 165 Hours of calm in this stability class:

0 Hours of missing wind measurements in this stabi Hours of missing stability measurements in all s

lity class:

tability cl 0

asses:

2 33

Facility: Peach Bottom Units 2 & 3 Licensee: Exelon Generation Company, LLC PSEG Nuclear, LLC Peach Bottom Nuclear Station Period of Record: January -

March 2010 Stability Class - Neutral 316Ft-33Ft Delta-T (F)

Winds Measured at 320 Feet Wind Direction Wind Speed (in mph) 1-3 4-7 8-12 13-18 19-24

> 24 Total N

3 2

34 43 16 8

17 10 10 NNE NE ENE 1

1 3

101 0

46 3

27 4

13 1

5 3

14 17 11 6

10 61 E

ESE SE SSE S

SSW SW WSW 0

1 2

0 2

0 1

4 16 9

27 7

9 7

17 16 1

2 2

7 11 1

3 1

0 2

1 0

2 0

28 0

49 6

49 3

22 1

21 8

3 6

0 2

0 6

3 11 2

19 0

39 1

5 14 17 W

2 5

24 64 25 19 139 WNW NW 1

8 15 128 116 58 326 0

11 28 94 96 39 268 NNW Variable Total 0

0 5

31 68 24 4

132 0

0 0

487 0

308 0

0 18 90 282 148 1333 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:

2 34

Facility: Peach Bottom Units 2 & 3 Licensee: Exelon Generation Company, LLC PSEG Nuclear, LLC Peach Bottom Nuclear Station Stability Period of Record: January -

Class - Slightly Stable Winds Measured at 320 March 2010 316Ft-33Ft 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 0

0 0

0 2

1 0

1 0

1 0

0 0

1 1

2 0

6 1

3 1

1 10 3

1 9

4 2

13 2

10 4

1 1

2 5

8 4

4 2

1 4

0 0

0 0

0 1

0 0

1 2

2 0

15 0

10 0

3 0

14 0

12 0

25 0

17 0

14 5

2 4

3 4

2 5

5 0

6 SW WSW W

WNW NW NNW Variable Total 3

18 18 4

18 37 18 1

10 39 20 0

12 0

14 0

41 0

77 0

71 0

45 0

13 3

15 23 1

0 8

0 2

0 155 3

0 0

48 0

0 9

42 135 0

389 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:

2 35

Facility: Peach Bottom Units 2 & 3 Licensee: Exelon Generation Company, LLC PSEG Nuclear, LLC Peach Bottom Nuclear Station Period of Record: January -

Stability Class -

Moderately Stable Winds Measured at 320 March 2010 316Ft-33Ft Delta-T (F)

Feet Wind Speed (in mph)

Wind Direction N

NNE NE ENE E

ESE SE SSE S

SSW SW WSW 1-3 3

1 0

0 1

0 0

1 1

0 1

0 4-7 8-12 13-18 19-24

> 24 Total 0

0 0

0 0

0.

0 0

0 0

0 0

9 1

1 4

6 7

7 2

6 8

4 8

W NW NNW Variable Total 0

1 0

0 0

2 2

0 0

2 3

3 0

2 2

0 0

2 12 12 0

0 0

0 0

0 0

0 0

0 7

7 3

0 0

26 9

27 52 18 0

106 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:

2 36

Facility: Peach Bottom Units 2 & 3 Licensee: Exelon Generation Company, LLC PSEG Nuclear, LLC Peach Bottom Nuclear Station Period of Record: January -

Stability Class -

Extremely Stable Winds Measured at 320 March 2010 316Ft-33Ft Feet Delta-T (F)

Wind Speed (in mph)

Wind Direction N

NNE NE ENE E

1-3 0

0 0

0 0

0 0

0 0

4-7 8-12 13-18 19-24

> 24 Total ESE SE SSE 0

0 0

0 0

0 0

3 1

4 4

S 0

0 0

0 0

0 0

0 0

0 0

0 1

0 4

0 0

5 0

0 0

0 0

0 0

0 0

0 0

0 0

0 0

0 0

1 6

3 SSW SW WSW W

1 1

0 0

1 0

0 0

8 1

10 3

11 WNW NW NNW Variable Total 1

2 0

0 7

1 3

0 0

0 0

0 0

0 0

0 0

11 0

15 0

0 0

0 3

9 0

0 3

19 36 0

63 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:

2 37

Facility: Peach Bottom Units 2 & 3 Licensee: Exelon Generation Company, LLC PSEG Nuclear, LLC Peach Bottom Nuclear Station Period of Record: April - June 2010 Stability Class -

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

Winds Measured at 33 Feet Wind Direction Wind Speed (in mph) 1-3 4-7 8-12 13-18 19-24

> 24 Total N

NNE NE ENE 1

17 2

5 1

7 4

1 3

E ESE SE SSE S

SSW SW WSW W

WNW 4

14 6

13 2

15 0

12 0

0 0

0 0

0 1

3 5

0 2

1 1

6 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

10 0

18 0

20 0

20 0

17 0

18 0

0 0

6 6

2 0

0 0

0 2

4 3

3 0

0 0

0 2

6 4

4 0

13 0

7 NNW Variable Total 0

26 8

5 0

32 0

19 0

15 0

31 0

0 0

0 28 138 0

198 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:

488 38

Facility: Peach Bottom Units 2 & 3 Licensee: Exelon Generation Company, LLC PSEG Nuclear, LLC Peach Bottom Nuclear Station Period of Record: April - June 2010 Stability Class - Moderately Unstable 150Ft-33Ft Delta-T (F)

Winds Measured at 33 Feet Wind Direction N

NNE NE ENE E

ESE SE SSE S

SSW SW Wind Speed (in mph) 1-3 4-7 8-12 13-18 19-24

> 24 Total 0

0 0

0 0

0 0

8 3

2 3

9 8

6 0

10 0

0 0

5 1

6 WSW W

WNW NW NNW Variable Total 0

2 0

1 0

0 5

7 8

12 8

0 5

3 4

4 3

0 0

4 0

0 0

0 4

0 0

0 0

0 0

0 0

10 0

16 0

12 0

17 0

11 0

0 33 66 24 0

127 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:

488 39

Facility: Peach Bottom Units 2 & 3 Licensee: Exelon Generation Company, LLC PSEG Nuclear, LLC Peach Bottom Nuclear Station Period of Record: April -

June 2010 Stability Class - Slightly Unstable Winds Measured at 15OFt-33Ft Delta-T (F) 33 Feet Wind Direction Wind Speed (in mph) 4-7 8-12 13-18 1-3 19-24

> 24 Total N

3 NNE 1

NE 0

ENE 1

E 1

ESE 0

SE 1

SSE 0

S 0

SSW 0

SW 0

WSW 0

W 0

WNW 0

NW 0

NNW 2

Variable 0

7 1

0 1

1 0

4 7

1 1

2 2

4 5

6 13 0

Total 9

32 12 2

0 0

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:

488 40

Facility: Peach Bottom Units 2 & 3 Licensee: Exelon Generation Company, LLC PSEG Nuclear, LLC Peach Bottom Nuclear Station Period of Record: April -

June 2010 Stability Class - Neutral Winds Measured at 150Ft-33Ft Delta-T (F) 33 Feet 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 19 7

7 3

8 9

6 10 15 6

3 5

2 4

10 13 1

16 0

0 0

1 0

19 44 19 5

17 16 15 22 27 20 0

8-12 13-18 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 1

0 0

0 7

0 0

0 3

0 0

0 3

0 0

0 7

0 0

0 5

0 0

0 4

1 0

0 16 1

0 0

6 0

0 0

2 0

0 0

0 0

0 0

Total 35 7

7 3

9 9

26 61 37 14 27 26 22 43 43 35 1

Total 128 221 54 2

0 0

405 Hours of calm in this stability class:

Hours of missing wind measurements in this Hours of missing stability measurements in 1

stability class:

0 all stability classes:

488 41

Facility: Peach Bottom Units 2 & 3 Licensee: Exelon Generation Company, LLC PSEG Nuclear, LLC Peach Bottom Nuclear Station Period of Record: April - June 2010 Stability Class - Slightly Stable Winds Measured at 150Ft-33Ft 33 Feet Delta-T (F)

Wind Direction Wind Speed (in mph) 1-3 4-7 8-12 13-18 19-24

> 24 Total N

NNE NE ENE E

ESE SE SSE S

SSW SW WSW 18 22 6

5 2

15 36 0

0 0

0 3

0 0

0 0

0 0

0 0

1 1

3 0

24 10 36 34 32 24 13 12 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

6 5

2 0

15 0

39 0

34 0

70 0

57 0

26 0

21 0

29 0

37 0

48 0

67 0

35 0

40 10 8

W WNW NW NNW Variable Total 10 19 18 18 24 18 23 38 16 17 2

0 290 223 1

6 6

2 0

20 0

2 0

533 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:

488 42

Facility: Peach Bottom Units 2 & 3 Licensee: Exelon Generation Company, LLC PSEG Nuclear, LLC Peach Bottom Nuclear Station Period of Record: April - June 2010 Stability Class -

Moderately Stable Winds Measured at 150Ft-33Ft 33 Feet Delta-T (F)

Wind Speed (in mph)

Wind Direction N

NNE NE ENE E

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

> 24 Total 3

1 0

0 7

ESE SE SSE S

SSW SW WSW 11 6

5 14 12 30 39 0

0 0

0 0

0 0

1 2

3 5

8 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 0

0 0

0 0

0 0

7 0

11 3

1 0

0 6

6 0

16 0

15 0

35 0

47 0

53 0

32 0

17 W

  • WNW NW NNW Variable Total 38 15 23 12 5

0 206 9

5 0

0 48 0

0 5

0 0

254 Hours of calm in Hours of missing Hours of missing this stability class:

1 wind measurements in this stability class:

0 stability measurements in all stability classes:

488 43

Facility: Peach Bottom Units 2 & 3 Licensee: Exelon Generation Company, LLC PSEG Nuclear, LLC Peach Bottom Nuclear Station Period of Record: April - June 2010 Stability Class -

Extremely Stable Winds Measured at 150Ft-33Ft Delta-T (F) 33 Feet 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 2

3 1

5 4

0 0

0 0

0 0

0 0

0 0

0 0

0 0

0 0

0 0

0 0

0 0

2 3

1 0

0 5

4 0

12 3

5 2

7 17 33 11 3

1 0

0 109 0

12 0

0 3

5 2

0 0

7 0

17 0

36 0

14 0

0 0

0 4

1 0

0 0

116 Hours of calm in Hours of missing Hours of missing this stability class:

3 wind measurements in this stability class:

0 stability measurements in all stability classes:

488 44

Facility: Peach Bottom Units 2 & 3 Licensee: Exelon Generation Company, LLC PSEG Nuclear, LLC Peach Bottom Nuclear Station Period of Record: April -

Stability Class - Extremely Unstable Winds Measured at 320 June 2010 316Ft-33Ft Feet Delta-T (F)

Wind Speed (in mph)

Wind Direction N

NNE NE ENE E

ESE 1-3 0

0 0

0 0

0 4-7 8-12 13-18 19-24

> 24 Total SE SSE S

SSW SW WSW W

WNW NW NNW 1

2 4

2 4

2 2

0 0

0 0

0 0

0 0

1 0

1 0

0 0

2 9

4 5

7 0

0 0

0 0

5 9

2 2

0 1

0 1

4 4

4 0

0 0

0 0

0 0

0 1

0 0

1 1

0 3

0 1

0 7

0 0

0 4

0 2

0 6

0 16 0

15 2

2 0

8 9

0 0

1 0

0 4

0 8

0 0

1 3

1 1

0 0

1 12 0

4 0

14 Variable 0

0 0

Total 0

18 42 32 1

100 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:

488 45

Facility: Peach Bottom Units 2 & 3 Licensee: Exelon Generation Company, LLC PSEG Nuclear, LLC Peach Bottom Nuclear Station Period of Record: April - June 2010 Stability Class - Moderately Unstable 316Ft-33Ft Delta-T (F)

Winds Measured at 320 Feet Wind Speed (in mph)

Wind Direction N

NNE NE ENE E

ESE SE SSE 1-3 0

0 0

0 0

0 0

0 4-7 8-12 13-18 19-24

> 24 Total 1

3 2

6 2

0 1

0 0

0 0

0 0

4 0

0 0

0 1

2 5

6 2

4 1

6 0

4 S

SSW SW WSW W

WNW 0

0 0

0 0

0 0

0 0

0 0

0 0

0 1

1 0

4 0

1 2

2 3

5 2

0 0

0 0

0 0

0 0

0 0

0 1

3 3

5 0

0 10 0

0 0

0 0

0 0

5 1

3 2

6 4

3 6

0 0

0 2

6 6

4 15 2

10 0

13 0

15 2

NNW Variable Total 3

10 2

0 0

14 0

0 0

0 0

21 45 21 6

107 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:

488 46

Facility: Peach Bottom Units 2 & 3 Licensee: Exelon Generation Company, LLC PSEG Nuclear, LLC Peach Bottom Nuclear Station Period of Record: April -

Stability Class - Slightly Unstable Winds Measured at 320 June 2010 316Ft-33Ft Feet Delta-T (F)

Wind Direction N

NNE NE ENE E

ESE SE SSE S

SSW SW WSW Wind Speed (in mph) 1-3 4-7 8-12 13-18 19-24

> 24 Total 0

0 0

0 0

4 8

2 2

6 0

11 0

0 0

8 9

5 2

0 0

0 7

7 W

0 0

NW NNW 0

0 0

1 4

2 3

0 8

3 9

7 0

4 4

8 0

0 1

2 3

0 0

0 14 1

14 0

22 0

10 Variable Total 0

0 2

39 51 26 12 1

131 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:

488 47

Facility: Peach Bottom Units 2 & 3 Licensee: Exelon Generation Company, LLC PSEG Nuclear, LLC Peach Bottom Nuclear Station Period of Record: April - June 2010 Stability Class -

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

Winds Measured at 320 Feet 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 Total 2

5 4

12 7

11 15 8

9 7

3 2

5 5

11 4

0 17 7

20 15 12 15 31 19 26 13 12 14 14 15 28 20 0

6 6

5 0

1 13 11 16 16 8

16 13 16 25 21 11 0

0 0

0 0

0 3

1 0

2 3

5 3

5 18 9

1 0

26 20 31 29 21 43 61 46 54 32 37 33 50 67 69 36 0

Total 19 110 278 184 50 14 655 Hours of calm in this stability class:

Hours of missing wind measurements in this 0

stability class:

0 Hours of missing stability measurements in all stability classes:

488 48

Facility: Peach Bottom Units 2 & 3 Licensee: Exelon Generation Company, LLC PSEG Nuclear, LLC Peach Bottom Nuclear Station Period of Record: April -

June 2010 Stability Class - Slightly Stable 316Ft-33Ft Delta-T (F)

Winds Measured at 320 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 2

1 2

7 5

7 16 7

4 3

9 2

7 7

6 2

0 9

5 2

6 4

10 10 18 27 21 22 14 15 14 25 16 0

2 0

2 0

1 2

3 6

20 9

4 10 12 16 30 5

0 122 13 7

6 14 13 21 30 34 56 35 37 26 36 38 65 25 0

Total 21 87 218 8

0 456 Hours of calm in this stability class:

Hours of missing wind measurements in this Hours of missing stability measurements in 0

stability class:

all stability cl 0

asses:

488 49

Facility: Peach Bottom Units 2 & 3 Licensee: Exelon Generation Company, LLC PSEG Nuclear, LLC Peach Bottom Nuclear Station Period of Record: April -

Stability Class - Moderately Stable Winds Measured at 320 June 2010

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

Feet Wind Speed (in mph)

Wind Direction N

NNE NE ENE E

ESE SE SSE 1-3 0

0 0

1 1

0 0

0 4-7 8-12 13-18 19-24

> 24 Total 1

1 3

3 2

2 1

4 6

1 1

0 1

0 2

1 3

6 2

1 0

0 0

0 0

0 0

2 S

SSW SW WSW W

0 0

2 0

0 0

2 1

0 0

0 0

0 0

0 0

0 1

0 0

0 0

1 0

0 0

2 0

0 0

0 0

0 0

3 4

9 11 3

1 4

4 5

6 13 4

6 0

10 0

11 0

21 0

25 0

18 0

28 0

25 0

20 4

8 3

10 15 WNW NW NNW Variable Total 3

12 9

1 1

0 4

13 3

0 3

0 0

0 8

0 7

42 75 64 0

190 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:

488 50

Facility: Peach Bottom Units 2 & 3 Licensee: Exelon Generation Company, LLC PSEG Nuclear, LLC Peach Bottom Nuclear Station Period of Record: April -

Stability Class -

Extremely Stable Winds Measured at 320 June 2010

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

Wind Speed (in mph)

Wind Direction N

NNE NE ENE E

ESE SE 1-3 0

0 0

0 0

0 0

0 4-7 8-12 13-18 19-24

> 24 Total 0

0 0

0 0

0 0

0 0

0 1

1 3

1 2

0 0

0 4

9 SSE S

SSW SW WSW W

0 1

0 0

0 0

0 0

0 0

0 0

0 0

0 3

7 2

6 0

17 NW NNW 1

Variable 0

Total 1

26 21 9

0 0

57 0

Hours of calm in this stability class:

0 Hours of missing wind measurements in this stability class:

Hours of missing stability measurements in all stability classes:

488 51

Facility: Peach Bottom Units 2 & 3 Licensee: Exelon Generation Company, LLC PSEG Nuclear, LLC Peach Bottom Nuclear Station Period of Record: July -

September 2010 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

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW 0

32 4

3 10 3

4 2

0 0

12 3

3 12 1

26 1

20 1

17 1

16 0

0 0

0 0

0 0

4 0

0 0

0 5

2 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 8

5 0

10 0

3 0

32 0

15 0

15 0

31 0

21 0

18 0

17 1

3 0

4 1

11 0

17 1

2 0

5 NW NNW Variable Total 1

10 2

21 1

2 0

14 0

12 0

25 0

0 0

0 45 179 0

238 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:

29 52

Facility: Peach Bottom Units 2 & 3 Licensee: Exelon Generation Company, LLC PSEG Nuclear, LLC Peach Bottom Nuclear Station Period of Record: July -

September 2010 Stability Class - Moderately 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

WNW NW NNW Variable 1-3 4-7 3

4 5

3 1

2 2

2 0

2 3

3 4

1 0

2 0

10 1

0 0

0 0

1 19 9

4 10 6

4 3

7 20 0

8-12 13-18 19-24

> 24 Total 0

0 0

0 13 0

0 0

0 5

0 0

0 0

5 0

0 0

0 3

0 0

0 0

1 0

0 0

0 2

0 0

0 0

3 2

0 0

0 23 1

0 0

0 10 0

0 0

0 6

0 0

0 0

13 0

0 0

0 9

4 0

0 0

12 0

0 0

0 4

0 0

0 0

7 2

0 0

0 24 0

0 0

0 0

Total 37 94 9

0 0

0 140 Hours of calm in this stability class:

0 Hours of missing wind measurements in this stabili ty class:

0 Hours of missing stability measurements in all stabi lity classes:

29 53

Facility: Peach Bottom Units 2 & 3 Licensee: Exelon Generation Company, LLC PSEG Nuclear, LLC Peach Bottom Nuclear Station Period of Record: July -

Stability Class - Slightly Unstable Winds Measured at Wind Speed Wind Direction 1-3 4-7 8-12 N

1 5

0 NNE 2

1 0

NE 3

0 0

ENE 3

0 0

E 2

0 0

ESE 1

0 0

SE 1

1 0

September 2010 150Ft-33Ft Delta-T (F) 33 Feet (in mph) 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

6 3

3 3

2 1

2 SSE S

SSW SW WSW W

WNW NW NNW Variable 0

11 2

2 1

0 1

3 0

5 0

4 2

5 4

2 4

4 7

0 0

1 0

0 0

0 0

0 0

0 0

0 0

0 0

0 0

0 11 7

4 6

4 3

7 4

0 12 0

0 Total 27 50 1

0 0

0 78 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:

29 54

Facility: Peach Bottom Units 2 & 3 Licensee: Exelon Generation Company, LLC PSEG Nuclear, LLC Peach Bottom Nuclear Station Period of Record: July -

Stability Class - Neutral Winds Measured at September 2010 150Ft-33Ft 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 14 24 8

8 5

4 2

7 1

0 0

0 0

9 1

0 0

0 0

0 0

0 0

0 0

0 0

0 0

0 0

0 0

0 0

0 39 0

0 0

0 0

9 8

5 4

2 SE SSE S

SSW SW WSW W

WNW NW NNW Variable Total 14 59 10 12 7

12 7

11 10 10 7

12 12 14 9

45 11 35 5

2 0

0 0

3 1

0 0

0 12 0

16 0

78 0

24 0

19 0

18 0

20 0

22 0

27 0

54 0

46 0

135 0

244 0

0 0

391 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:

29 55

Facility: Peach Bottom Units 2 & 3 Licensee: Exelon Generation Company, LLC PSEG Nuclear, LLC Peach Bottom Nuclear Station Period of Record: July -

September 2010 Stability Class - Slightly Stable 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

WNW NW NNW Variable Total 1-3 4-7 8-12 13-18 19-24

> 24 Total 19 14 6

4 8

8 32 61 56 22 26 29 44 39 37 31 2

438 16 0

0 1

0 0

0 0

0 0

0 0

0 0

0 0

0 0

24 7

1 93 10 3

27 1

0 6

1 0

13 0

0 14 0

0 18 0

0 27 0

0 37 1

0 49 5

0 0

0 0

35 15 6

4 8

8 64 167 84 29 39 43 62 66 75 85 2

325 25 4

0 792 Hours of calm in this stability class:

Hours of missing wind measurements in this Hours of missing stability measurements in 6

stability class:

0 all stability classes:

29 56

Facility: Peach Bottom Units 2 & 3 Licensee: Exelon Generation Company, LLC PSEG Nuclear, LLC Peach Bottom Nuclear Station Stability Period of Record: July -

September 2010 Class - Moderately Stable 150Ft-33Ft Winds Measured at 33 Feet Delta-T (F)

Wind Direction N

NNE NE ENE E

ESE SE SSE Wind Speed (in mph) 1-3 4-7 8-12 13-18 19-24

> 24 Total 5

0 0

0 2

1 4

10 12 24 41 1

1 0

0 0

0 0

5 1

2 4

S SSW SW WSW W

WNW NW 0

0 0

0 0

0 0

0 0

0 0

0 1

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

0 0

0 0

0 0

0 0

0 0

0 0

0 0

0 0

0 0

0 0

1 0

0 2

1 4

39 18 52 13 6

0 15 0

13 0

26 0

45 0

57 0

66 0

35 0

37 0

11 28 7

27 10 NNW Variable Total 10 1

256 1

0 63 0

1 0

320 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:

29 57

Facility: Peach Bottom Units 2 & 3 Licensee: Exelon Generation Company, LLC PSEG Nuclear, LLC Peach Bottom Nuclear Station Period of Record: July -

September 2010 Stability Class -

Extremely Stable 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

WNW NW NNW Variable 1-3 4-7 8-12 13-18 19-24

> 24 Total 0

0 0

0 0

0 0

2 1

8 80 66 31 6

2 2

0 0

0 0

0 0

0 0

2 1

9 86 73 33 6

2 2

0 Total 198 16 0

0 0

0 214 Hours of calm in Hours of missing this stability class:

0 wind measurements in this stability class:

0 Hours of missing stability measurements in all stability classes:

29 58

Facility: Peach Bottom Units 2 & 3 Licensee: Exelon Generation Company, LLC PSEG Nuclear, LLC Peach Bottom Nuclear Station Period of Record: July -

September 2010 Stability Class -

Extremely Unstable 316Ft-33Ft Winds Measured at 320 Feet Delta-T (F)

Wind Speed (in mph)

Wind Direction N

NNE NE ENE 1-3 0

0 0

0 4-7 8-12 13-18 19-24

> 24 Total 5

4 0

6 9

4 1

0 E

ESE SE SSE S

1 12 1

SSW SW WSW W

WNW NW NNW Variable 0

0 0

0 0

0 0

0 0

0 0

0 2

3 3

4 4

13 1

11 0

0 0

0 0

0 2

0 3

0 1

0 1

0 7

3 0

0 0

0 0

0 0

0 0

0 0

0 1

3 0

0 0

0 4

0 14 0

17 0

14 0

0 0

8 0

14 1

0 5

0 10 0

14 1

13 6

4 0

0 0

1 0

0 4

3 4

1 3

4 0

0 0

0 0

9 4

8 1

0 11 0

7 0

0 Total 1

43 78 17 0

143 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:

29 59

Facility: Peach Bottom Units 2 & 3 Licensee: Exelon Generation Company, LLC PSEG Nuclear, LLC Peach Bottom Nuclear Station Period of Record: July -

September 2010 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 t> 24 Total N

0 0

0 15 NNE NE ENE 1

1 1

0 0

0 0

0 0

0 0

7 ESE SE SSE S

SSW SW WSW W

WNW NW 0

0 0

0 0

0 0

0 0

0 0

0 7

5 4

6 8

8 9

0 13 0

16 0

0 3

6 0

3 0

13 0

10 NNW Variable Total 1

0 7

0 2

0 0

0 5

0 0

3 50 52 23 0

133 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:

29 60

Facility: Peach Bottom Units 2 & 3 Licensee: Exelon Generation Company, LLC PSEG Nuclear, LLC Peach Bottom Nuclear Station Period of Record: July -

September 2010 Class -

Slightly Unstable 316Ft-33Ft Winds Measured at 320 Feet Stability Delta-T (F)

Win Wind Direction N

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW NW NNW Variable d Speed (in mph) 8-12 13-18 1-3 4-7 19-24

> 24 Total 0

1 2

2 0

0 0

0 0

0 1

0 0

0 0

0 0

6 4

1 2

1 2

1 1

3 5

3 8

3 1

1 1

0 2

0 0

0 0

1 0

0 4

2 2

2 2

1 12 0

0 9

6 3

4 1

3 8

6 14 12 15 12 15 2

22 8

0 Total 6

43 59 28 4

0 140 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:

29 61

Facility: Peach Bottom Units 2 & 3 Licensee: Exelon Generation Company, LLC PSEG Nuclear, LLC Peach Bottom Nuclear Station Period of Record: July -

September 2010 Stability Class -

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

Winds Measured at 320 Feet 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 Total 10 12 3

8 6

8 6

15 15 11 9

11 18 7

14 20 0

16 15 10 10 12 17 30 39 20 13 13 15 14 17 52 24 0

317 19 4

3 6

3 9

30 27 15 3

3 5

4 6

25 11 0

173 46 37 19 29 24 37 75 89 53 30 25 32 43 35 95 60 0

Total 36 173 23 7

729 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:

29 62

Facility: Peach Bottom Units 2 & 3 Licensee: Exelon Generation Company, LLC PSEG Nuclear, LLC Peach Bottom Nuclear Station Period of Record: July - September 2010 Stability Class -

Slightly 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 1-3 4-7 0

9 1

7 2

6 2

13 3

6 6

13 2

9 4

14 0

16 1

11 2

11 1

8 1

11 0

7 1

14 1

17 0

0 Wind Speed (in mph) 8-12 13-18 19-24

> 24 Total 14 6

5 19 7

7 11 19 42 27 19 10 18 13 36 39 0

8 1

1 0

1 3

5 19 20 13 6

19 15 23 30 20 0

33 15 14 34 17 29 27 56 85 55 39 41 49 46 81 78 0

Total 27 172 292 184 22 2

699 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:

29 63

Facility: Peach Bottom Units 2 & 3 Licensee: Exelon Generation Company, LLC PSEG Nuclear, LLC Peach Bottom Nuclear Station Period of Record: July -

September 2010 Stability Class - Moderately Stable 316Ft-33Ft Delta-T (F)

Winds Measured at 320 Feet 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 Total 8

8 4

6 5

0 3

8 11 6

8 6

6 5

4 8

0 7

2 0

0 0

0 0

0 4

7 4

13 9

4 15 12 0

0 0

0 0

0 0

0 0

2 1

4 7

6 5

5 5

0 0

0 0

0 0

0 0

0 0

0 0

2 7

1 0

0 0

0 0

0 0

0 0

0 0

0 0

0 0

0 0

0 0

0 18 10 7

7 6

1 3

8 17 14 19 31 28 17 26 26 2

Total 22 96 77 35 10 Hours of calm in this stability class:

0 240 0

es:

29 1

Hours of missing wind measurements in this stabili Hours of missing stability measurements in all sta ty class:

bility class 64

Facility: Peach Bottom Units 2 & 3 Licensee: Exelon Generation Company, LLC PSEG Nuclear, LLC Peach Bottom Nuclear Station Period of Record: July -

September 2010 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 1-3 0

0 1

0 0

0 0

0 3

3 4-7 8-12 13-18 19-24

> 24 Total 0

0 0

0 0

0 0

0 0

0 0

0 1

1 3

2 0

0 0

0 4

S SSW 7

SW WSW W

1 0

0 0

0 1

0 8

9 7

6 2

15 4

1 0

0 NNW Variable Total 3

0 5

0 0

0 0

0 2

0 0

9 0

0 15 0

17 0

18 9

33 36 14 0

94 Hours of calm in this stability class:

0 Hours of missing wind measurements in this stabi lity class:

0 Hours of missing stability measurements in all stability classes:

29 65

Facility: Peach Bottom Units 2 & 3 Licensee: Exelon Generation Company, LLC PSEG Nuclear, LLC Peach Bottom Nuclear Station Period of Record: October -

December 2010 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

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW NW 0

11 0

11 0

0 0

0 0

0 0

0 0

0 0

0 0

0 1

1 4

8 5

2 0

2 3

4 3

3 0

5 0

16 0

17 Variable 0

0 0

0 Total 10 53 6

0 0

0 69 Hours of calm in Hours of missing Hours of missing this stability class:

wind measurements in this stability measurements in 0

stability class:

all stability cl 0

asses:

6 66

Facility: Peach Bottom Units 2 & 3 Licensee: Exelon Generation Company, LLC PSEG Nuclear, LLC Peach Bottom Nuclear Station Period of Record: October -

December 2010 Class -

Moderately Unstable 150Ft-33Ft Stability 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 2

11 0

13 0

0 0

0 0

5 3

2 0

2 2

2 2

5 0

0 0

0 0

2 6

5 1

12 0

9 15 2

1 19 37 14 NNW Variable Total 0

0 7

0 3

0 0

0 0

0 0

0 0

0 20 0

26 0

71 0

10 0

0 18 74 68 16 0

176 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:

6 67

Facility: Peach Bottom Units 2 & 3 Licensee: Exelon Generation Company, LLC PSEG Nuclear, LLC Peach Bottom Nuclear Station Period of Record: October -

December 2010 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 1-3 1

1 1

1 0

1 0

4-7 8-12 13-18 19-24

> 24 Total 0

6 SE 0

0 0

0 0

0 0

0 0

0 0

1 SSE 2

S SSW SW WSW W

WNW NW 0

0 0

1 0

0 1

1 1

3 2

3 0

3 2

6 8

1 7

12 2

14 17 1

2 3

0 0

6 0

0 0

0 0

0 0

15 0

22 0

36 0

11 2

0 6

0 3

0 Variable Total 0

0 11 49 43 0

109 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:

6 68

Facility: Peach Bottom Units 2 & 3 Licensee: Exelon Generation Company, LLC PSEG Nuclear, LLC Peach Bottom Nuclear Period of Record: October Stability Class -

Neutral Winds Measured at Wind Speed Wind Station December 2010 150Ft-33Ft 33 Feet (in mph)

Delta-T (F)

Direction N

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW NW NNW Variable Total 1-3 5

6 12 12 10 9

7 4

3 2

6 3

3 4

6 12 0

104 4-7 8-12 13-18 19-24

> 24 Total 13 0

0 0

0 2

17 16 14 3

4 12 51 60 88 37 0

317 3

0 0

0 0

0 10 8

5 1

1 3

45 70 101 17 0

264 0

0 0

0 0

0 7

0 0

0 0

0 3

5 25 0

0 40 21 6

12 12 10 11 41 28 22 6

11 18 102 139 222 66 0

0 727 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:

6 69

Facility: Peach Bottom Units 2 & 3 Licensee: Exelon Generation Company, LLC PSEG Nuclear, LLC Peach Bottom Nuclear Station Period of Record: October -

December 2010 Stability Class - Slightly Stable 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

WNW NW NNW Variable 1-3 4-7 8-12 13-18 19-24

> 24 Total 23 15 20 20 18 23 19 17 14 12 14 16 28 23 27 14 2

27 2

0 0

4 10 10 7

17 8

9 57 72 90 61 32 0

2 0

0 0

0 3

6 3

7 1

2 2

0 10 14 4

0 54 52 17 20 20 22 36 35 27 38 21 25 75 100 123 102 50 2

Total 305 406 0

0 0

765 Hours of calm in this stability class:

Hours of missing wind measurements in this Hours of missing stability measurements in 4

stability class:

0 all stability classes:

6 70

Facility: Peach Bottom Units 2 & 3 Licensee: Exelon Generation Company, LLC PSEG Nuclear, LLC Peach Bottom Nuclear Station Stability Period of Record: October Class - Moderately Stable Winds Measured at December 2010 150Ft-33Ft 33 Feet Delta-T (F)

Wind Speed (in mph)

Wind Direction N

NNE NE ENE E

1-3 2

1 3

3 11 4-7 8-12 13-18 19-24

> 24 Total ESE 14 1

0 0

0 0

0 0

0 0

0 2

SE 7

SSE 4

8 S

0 0

0 0

0 0

0 0

0 0

0 0

0 0

0 0

0 0

SSW 0

0 0

0 0

7 SW WSW W

WNW NW NNW Variable Total 20 21 13 27 8

16 4

9 1

4 1

1 0

158 30 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 11 0

14 0

3 0

0 0

0 0

0 0

7 4

8 7

0 22 0

34 0

35 0

20 0

10 1

3 3

0 0

5 1

0 188 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:

6 71

Facility: Peach Bottom Units 2 & 3 Licensee: Exelon Generation Company, LLC PSEG Nuclear, LLC Peach Bottom Nuclear Station Period of Record: October -

December 2010 Stability Class - Extremely Stable 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

WNW NW NNW Variable 1-3 4-7 8-12 13-18 19-24

> 24 Total 0

2 3

1 7

5 7

0 5

6 29 44 14 11 5

2 0

141 0

2 3

1 7

5 7

0 5

6 29 48 19 11 6

2 0

Total 10 0

0 0

0 151 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:

6 72

Facility: Peach Bottom Units 2 & 3 Licensee: Exelon Generation Company, LLC PSEG Nuclear, LLC Peach Bottom Nuclear Station Period of Record: October - December 2010 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 SSE S

SSW SW WSW W

WNW NW NNW Variable Total 1-3 4-7 8-12 13-18 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

1 1

0 0

0 0

0 3

0 0

0 0

0 0

0 0

0 0

0 1

0 0

0 0

0 1

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 0

0 0

0 0

0 0

0 0

0 0

0 0

0 0

0 Total 0

0 0

0 0

2 3

0 1

1 1

0 0

0 0

0 0

0 1

7 0

0 0

8 Hours of calm in this stability class:

0 Hours of missing wind measurements in this stability class:

0 Hours of missing stability measurements in all stability classes:

9 73

Facility: Peach Bottom Units 2 & 3 Licensee: Exelon Generation Company, LLC PSEG Nuclear, LLC Peach Bottom Nuclear Station Period of Record: October -

December 2010 Stability Class - Moderately Unstable 316Ft-33Ft Delta-T (F) winds Measured at 320 Feet Wind Speed (in mph)

Wind Direction N

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW 1-3 0

0 0

1 0

0 0

0 0

0 0

0 0

0 0

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

4 1

1 1

0 0

3 1

1 2

6 1

NW 4

1 7

6 0

NNW Variable 0

0 1

Total 3

17 17 1

0 39 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:

9 74

Facility: Peach Bottom Units 2 & 3 Licensee: Exelon Generation Company, LLC PSEG Nuclear, LLC Peach Bottom Nuclear Station Period of Record: October -

December 2010 Stability Class - Slightly Unstable 316Ft-33Ft Delta-T (F)

Winds Measured at 320 Feet 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 Total 0

0 1

0 0

0 0

0 0

0 0

0 0

0 0

0 0

4 4

5 2

0 0

0 0

2 0

1 0

0 1

0 0

1 1

0 0

0 3

0 3

0 3

0 2

1 2

3 5

0 0

0 1

0 0

0 0

0 0

1 0

0 2

2 13 12 0

0 9

8 4

0 2

1 1

0 4

1 4

7 14 22 27 12 0

Total 1

17 26 32 31 9

116 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:

9 75

Facility: Peach Bottom Units 2 & 3 Licensee: Exelon Generation Company, LLC PSEG Nuclear, LLC Peach Bottom Nuclear Station Period of Record: October -

December 2010 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 12 12 14 1

1 40 NNE 2

12 9

6 0

0 29 NE 4

7 2

5 0

0 18 ENE 4

4 0

0 0

0 8

E 2

3 2

1 0

0 8

ESE 1

9 16 2

1 0

29 SE 3

11 23 5

11 14 67 SSE 0

8 16 5

4 1

34 S

0 2

19 16 10 1

48 SSW 1

4 7

5 1

0 18 SW 0

8 4

3 1

1 17 WSW 3

0 8

13 5

2 31 W

2 0

13 63 35 28 141 WNW 0

5 15 77 72 25 194 NW 2

15 36 113 92 59 317 NNW 2

11 28 47 19 3

110 Variable 0

0 0

0 0

0 0

Total 26 ii 210 375 252 135 1109 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:

9 76

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

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW NW NNW Variable Peach Bottom Nuclear Station Period of Record: October - December 2010 Class -

Slightly Stable 316Ft-33Ft Winds Measured at 320 Feet Delta-T (F)

Wind Speed (in mph) 1-3 4-7 8-12 13-18 19-24

> 24 Total 6

4 6

6 2

8 15 13 11 4

9 2

1 2

7 2

0 24 8

5 2

2 21 9

5 22 19 12 7

14 11 17 24 0

11 5

4 1

2 2

4 0

7 10 8

28 58 45 38 17 0

2 2

0 0

0 7

1 0

1 0

1 9

8 13 6

6 0

56 48 21 17 11 10 39 31 20 43 37 32 49 82 73 69 50 0

Total 35 98 202 240 1

632 0

Hours of calm in this stability class:

0 Hours of missing wind measurements in this stability class:

Hours of missing stability measurements in all stability classes:

9 77

Facility: Peach Bottom Units 2 & 3 Licensee: Exelon Generation Company, LLC PSEG Nuclear, LLC Peach Bottom Nuclear Station Period of Record: October -

December 2010 Stability Class - Moderately 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 Total 1-3 0

2 2

0 0

0 0

1 4-7 8-12 13-18 19-24

> 24 Total 3

2 2

3 1

5 6

5 9

3 0

1 0

1 1

1 0

0 0

0 0

0 0

0 1

0 0

0 0

0 0

0 0

0 0

12 0

7 0

0 0

0 0

0 4

4 1

6 7

7 0

9 15 1

13 12 0

1 0

2 1

1 0

4 8

2 0

2 1

0 8

10 9

10 8

11 0

25 0

26 0

22 0

28 0

21 0

18 0

13 6

3 3

0 8

7 1

0 0

0 6

0 11 66 80 48 0

207 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:

9 78

Facility: Peach Bottom Units 2 & 3 Licensee: Exelon Generation Company, LLC PSEG Nuclear, LLC Peach Bottom Nuclear Station Period of Record: October - December 2010 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 Wind Speed (in mph) 1-3 4-7 8-12 13-18 19-24

> 24 Total 7

9 1

0 0

0 0

0 0

1 0

3 10 6

0 5

0 9

9 3

0 4

2 2

2 1

8 5

8 13 11 3

8 0

Total 18 18 42 10 0

0 88 0

Hours of calm in this stability class:

0 Hours of missing wind measurements in this stability class:

Hours of missing stability measurements in all stability classes:

9 79

Facility: Peach Bottom Units 2 & 3 Licensee: Exelon Generation Company, LLC PSEG Nuclear, LLC Appendix A-ERRATA Data Section 80

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

l~o

.3*~gMt F

2*pyn-eo

.th.

0NANA

/

pCC Silsrgy Coololsoy to P0CC Oo.negy 0ompny 0Fe00

C*us.-llTosto methooloso yI III. (0
5)

Wte o 2

00CM 11.0 4

4 18e01

  • ols11oto reg~rlnlg SC lch~ 00hanged10 th 181riterion hor cotroling P

Fe-O9 NI ~

~

~

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0

  • ~101 00 0 8.

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  • Conslstency 01010 th'(OSCAy Fac~Pstors ol4.3.o0d7.0,.Ielltng u.Iog th.

at o1Iooot..anoosramet.,.o-oo wtogoos thot 101 to. re.eeodsspt.

1075 dlo

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  • 33034080r0*en

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o.

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  • 5 158 11.14 10005930M 14 00OCM VI.A CI NA R.00010908003,180180 No log1.8001.

.0 15 Ta.01e ViiA-1i/igur 3

40 34 C°08 I

71K~I

0. 800.0.

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.VII.A.

I *.

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  • u0008160 1n P1901e V(IIA.2 108 9888008 r80d1..1 00o AOdeO to Ho 3 VenlilatloO 01081m.k01 c

10 00CM

  • 40 10003018.- AOdeO 088800 I

3

  • ndr~geer to long.M37,

.oIt.

C,.8180 080 wLOC 01t0,80 88 10 00DCM 3 0 loIod.*m 0orre10.,k1105 to101 0onge4 ox00t 18181800810 1018 11agra. 10 o,810018801ea10811.18107 lA (p.3). Also 800e01r118r8n08s t1 101 i

i Reoroncosyste 8081007 0d01,ns,811o8r 10 COCMS 3.5.0.4 (p

00CMn 43..8.010).

800 OCMS 3.8.04. 0(0 i

i i

  • 00CM 30 0.-10).

.18.180 09p*,

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00 A.

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Fob-O*

81

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

ODCMS Section

'Old R

f (Rev.12) (New)Rev.13 Description of Change Rationale for change i ~ ~ ~ ~

~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~ ~.

Date Change Was Made ODCMS

.ODCMS 3.8.A 3.8.A-2 3

Functional throughout out idocument Ief IR# 582009, Recent Issuance of procedure OP-AA-tO08-115,Operability Determinations,

'Rev.0, implements recent NRC guidance RIS 2005-20 "Operability Determinations and Functionality Assessments for resolution of degraded or nonconforming conditions adverse to

.quality or safety, The intent is to reserve the

.usage of Operability for only Tech Spec related

.equipment while "functional" wilt be used for TRM

.ODCM and UFSAR equipment ODCMI

2 ODCM5 3.8.B.4.b 3.8..--12

.3.8.B-10

ýODCM ODCM 3

ODCMS 3.8.C-4 (Tao 3 8 t

4 3.8.C.4

Added reference to floor Accuracy - current reference to just the drain demineralizer.

floor drain filter is incomplete.

Stack was changed to stacks IR#359300, Indicate both stacks are covered, NRC comments

'AR# 265026, As per 10 CFR 72.13 no

,longer a reporting requirement

ýODCM iODCM B 3.8-id O4

.DCMS 3.10.2.d C

D will be removed 13.10-2 11 Feb-08 Feb-08 Feb-08 Feb-08 Feb-08 Feb-08 l

q Per AR direction, added ODCMS Surveillance requirementsý.

dRequirements 4.8.B.3.7 thru 4.8.B.18 to Addednameforhe, Channel specify Instrument Checks, Instrument 53 ODCM 1 ODCM 38 unCheck, l Ch tannl Functional Tests, Source Checks, and 5

AR 00359300 388-10, ODCM Functional Test and Isrmn airto o h evc 3.8. B-9 i38-1 ihne airto o

Instrument Calibration for the service 3.8. B-11 Channel Calibration for ieach monitor (p ODCM swater, emergency service water and high 3pressure service water effluent line

.8.B10 and 11).

radiation monitors.

Source check requirements-Added same for Main Stack and 6

AR 00350300 N/A ODCMS Vent Stack effluent AR direction.

38C-13 monitors (ODCMS 4.8.C.4.10 and 4.8.C.4.11 both on p. ODCMS 3.8.C-.

13)

ODCMS NA 3.8.A-1 thru 7

'AR 00359300 N/A D.

38.ODcMS i~3.8.A-3 Uetinltlons-Reviewed same against NUREG-1302 and made suggested changes toi GASEOUS RADWASTE TREATMENT SYSTEM,

.INSTRUMENT

.CALIBRATION, INSTRUMENT IFUNCTIONAL TEST,

'OFFSITE DOSE

CALCULATION MANUAL, and SOURCE CHECK definitions (P. ODCM I A, 1.tt r rll Rilr AA.,a Better consistancy with regulatory documents.

Feb-08 M

Service mater, ESW, and Per AR direction, added Functional ODCM38B-requirement to ODCMS 3.8.B.3 (p. ODCM 8

AR 00359300 N/A 7-9 iHPSW monitors, Include 3.8.-7); item D under Compensatory t*n the ODCMS Measures (p. ODOM 3.8.B-8 and 9).

Feb-08 82

Facility: Peach Bottom Units 2 & 3

Administrative wording CMS 3.8..1DCM 38 upgrades Certain Required Added wording changes were

.9 Compensatory made to enhance clarity 93 8 B-11 Initiate measures AlA A.2.daa o

regarding 0OCMS A.3 required compensatory measures ODCM 6DCM 3...

9a ODCMS 4.8.B.1.2 See Item#9 3.8.13-2 t2 Licensee: Exelon Generation Company, LLC PSEG Nuclear, LLC

'These changes are considered as administrative upgrades and do not

,adversely affect the quality of the ODCM and enhance compliance to regulatory requirements.

These changes were to

.typically add words such as 'initiate actions to' or delete redundant or unnecessa yr.ords iODCMS 3.8.B.4, Required 9b Compensatory

measure A.1 ODCM 00CM 3.8.1-

.3.8.B-12 :12 Seeltem#9 iODCMS3.8.C.1, ODCM ODCM 3.8.C-R ia 3.8.C1 1

'See ltem#9 Required 3.8.C-1 I1 See Item#9

.See ltem#9

.See ltem#9 See Item#9 Feb-08 Feb-08 Feb-08 Feb-08 Feb-08 Feb-08 ODCMS 3.8.C.4, Sc Required Compensatory measure B. 1 ODCM 0ODCM 3.8.C-

!3.8.C-10 11 See Item#9 S9d 0O3CM.8.C.6, ODCM ODCM 3.8 C-See ItemitS

d.

.Re 3.8.C-17 17 1

This ensures that the intent of the test The instrument calibration iof the radwaste effluents requirement is clear. A full 'instrument 0CM0DCMC4.B.338 flow monitor (ODCMS icalibration' is impractical to perform. An 10 OOM3.8..-84O88B.3.6) was changed electronic alignment provides reasonable i3.8.8-9 10 from a

s changed assurance that appropriate flow is known.

f n

rAdditionally, flow is verified to be

calibration'to a appropriate by liquid radwaste tank level

'electronic alignment ci:Comparisons during effluent releases.

i....................

i.........................

Feb-08 if ODCMS 3.9 39-1, 3N/A 2

.Deletion of ODCMS 3.9

i. Major Changes to Radioactive Waste Treatment

'Systems - This section is being deleted since thre are redundant requirements elsewhere that ensure that changes to radioective waste treatment systems en.

property evaluated and reported to the NRC as applicable. I0CFR 50.09 delineates the requirements of what must be submitted to the NRC in the routine t0CFR 50.59 repet. The details of the content of the i 0CFR 50.89 report is not required to exist in the iODCMS and results in unwarranted and additional

regulatory burden. tOCFR 20 does not require this level of regulatory requirements. The definition of

.'major changes' is superseded by revisions to the 1nCFR 50.59 process that have been extensively reviewed by NEI and the NRC and codified in 10CFR

.50.59. The details of PORC and NSRe are governed

.by the OATR and applicWble ANSI standards.

fTherefore, the ODCMS 3.9 discussion or PORC and NSRB is duplicative and unwarranted regulatory burden.

Feb-08 83

Facility: Peach Bottom Units 2 & 3 Licensee: Exelon Generation Company, LLC PSEG Nuclear, LLC 12 ODCMS 3.10.3 CM N/A 12 310 2 i........

ODCMS 3.8.B.2, i13 iRequired Compensatory measure A. 1

'Deletion of the details of the RDAR from ODCMS

'3.10.3 -The RDAR was relocated out of Tech specs at the time of ITS implementation. In this project, they were determined to not be of a safety significant nature that they were required Deletion of Radiological

,to be retained in the Tech Specs. This Dose Assesssment information can be made available to NRC Report inspectors if required. Therefore, maintaining these ODCMS sections and details of reporting is judged to be unwarranted regulatory burden.

tAppropdate elements of these reports will be performed in accordance with other regulatory

'requirements and guidance, as appropriate.

Special reports not required elsewhere by regulations or other regulatory

!Removal of Special requirements were changed to ensure that Removaln to SeCil ithe occurrence was entered into the site R

t ticorrective action program in lieu of NRC requirements Added

Creporting. NRC special reports are 1"Initiate a Condition Report..ODCMS unwarranted regulatory burden that is not Rev.12 states "Submdi required by 10CFR 20. The NRC resident S inspector and baseline reactor oversight Special R t

programs are in place to ensure that the NRC' NRC is aware of appropriate issues. The NRC routine reviews and has access to

.the corrective action program.

Removal of Special Reporting to NRC See Item #13 re q u ire m e n ts ODCMS 3.8.8.3, 13a Required Compensatory

)ODCMS 3.8.8.4, Required 3 Compensatory imeasure A.I 3.8.B-9 13.8.-9 S............

3.B-12.3.8.B1-12 ODCMS 3.8.C.2,

.1c Required 3c uie 13.8.C-5 3.8&c-5 Compensatory 3

measure A. 1 io D

  • M ODCIMS 3.8.C.3
  • 13d Required 3.8.C-7 3.8.C-7

.Compensatory ODCMS 3.8.C.4,

.13e Required 3

.9 3.8.C-12 Compensatory 13f Required 3-8.14 3.8.C-15

.Compensatory,,,

ODCMS 3.8 C.7 13g Required 38C-18.3.8.C-18 Compensatory c £

  • P~ r~sat~ ry.................

[......

ODCMS 3.8.D. 1 13h Required 38D-1 I3.8.D-1 Compensatory ODCMS 3.8.E. 1,

13i Condition B and 38E-1 E3.8.-2

.R eq u ired ODCMS 3.8.E. 1, 13j Required

3.8.E.-3

.3.8.E-3

.Compensatory i...................

i*

. ~ a ~ ry..............

S ODCMS 3.8E.1, 13k Required 3.8. E-4 3.8.E-4 iCompensatory

=0 D c M S

  • 8*E.U --I...

0DCM 3.8.E3,

.131 Required 3.8. E-15 3.8.E-15 Compensatory Removal of Special Reporting to NRC requirements

.Removal of Special

Reporting to NRC requirements
Removal of Special

.Reporting to NRC requirements Removal of Special

.Reporting to NRC

,requirements

.....( u [.......

'Removal of Special Reporting to NRC requirements iRemoval of Special Reporting to NRC

,requirements

.Removal of Special

.Reporting to NRC

.requirements

,Removal of Special

Reporting to NRC requirements

.Removal of Special

.Reporting to NRC requirements...........................

'Removal of Special

.Reporting to NRC requirements

.Reporting to NRC re quremen-ts..................

See Item #13 See Item #13 See Item #13 See Item #13

.See Item #13

See Item #13 See Item #13
See Item #13 S................

See Item #13

.See Item #13 See Item #13 Feb-08 Feb-08 Feb-Oh Feb-O8 Feb-O8 Feb-O8 Feb-08 Feb-08 Feb-08 Feb-08 Feb-08 Feb-08 Feb-08 Feb-08 84

Facility: Peach Bottom Units 2 & 3 Licensee: Exelon Generation Company, LLC PSEG Nuclear, LLC Appendix B-Revised copy of the ODCM 85

Facility: Peach Bottom Units 2 & 3 Licensee: Exelon Generation Company, LLC PSEG Nuclear, LLC (PageIntentionally Left Blank) 86