Text

Annual Radioactive Effluent Release Report
	ML101250324
Person / Time
Site:	Limerick
Issue date:	04/27/2010
From:	Mudrick C; Exelon Corp, Exelon Generation Co
To:	; Document Control Desk, Office of Nuclear Material Safety and Safeguards, Office of Nuclear Reactor Regulation
References
	T.S. 6.9.1.8
	Download: ML101250324 (108)
	v • d • e

Exeltn.

Limerick Generating Station www.exeloncorp.com Nuclear 3146 Sanatoga Road Pottstown, PA 19464 T.S. 6.9.1.8 April 27, 2010 U. S. Nuclear Regulatory Commission Attn: Document Control Desk Washington, DC 20555 Limerick Generating Station, Unit 1 and 2 Facility Operating License Nos. NPF-39 and NPF-85 NRC Docket Nos. 50-352 and 50-353 and 07200065

Subject:

2009 Annual Radioactive Effluent Release Report

Reference:

Exelon Limerick Letter to NRC on ISFSI from 8/1/08 to 8/1/09 dated 9/25/09 In accordance with Section 6.9.1.8 of Limerick Generating Station (LGS) Technical Specifications and Section 6.2 of the Offsite Dose Calculation Manual, attached is the 2009 Annual Radioactive Effluent Release Report No. 35 for LGS. Also attached is the Process Control Program, revision 7.

In accordance with 1 OCFR72.44(d)(3) Limerick has reviewed TLD data from the ISFSI modules currently loaded. During the period of August 1, 2009 to December 31, 2009, there were no liquid or gaseous effluent releases from the ISFSI at Limerick.

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, Christopher H. Mudrick Vice President-LGS Exelon Generation Company, LLC

Attachment:

1. 2009 Annual Radioactive Effluent Release Report No. 35 for LGS

2. Process Control Program Rev. 7 cc:

S. Collins, Administrator, Region I, USNRC (w/Attachments)

E. DiPaolo, LGS USNRC Senior Resident Inspector (w/Attachments)

T. Moslak, Inspector Region I, USNRC (w/Attachments)

USNRC Spent Fuel Project Office, Washington, DC (w/Attachments)

E. Thorton-Jones-US EPA, Office of Radiation and Indoor Air, Radiation Protection Division, Center of Waste Management, 1200 Pennsylvania Ave. MC 6608J, Washington, D.C.20460 (w/Attachments)

bcc:

P. Cowan - KSA 3P (w/o Attachments)

J. Grimes - KSA-3N (w/o Attachments)

C. Mudrick - GML 5-1 (w/o Attachments)

E. Callan-GML 5-1 (w/o Attachments)

S. Johnson-GML 5-1 (w/o Attachments)

D. Helker - KSA 3P (w/o Attachments)

D. Merchant - GML 1-1 (w/Attachments)

J. Hunter III - SSB 2-4 (w/Attachments)

A. Columbus - SMB 1-2 (w/Attachments)

D. Wahl - SSB 2-3 (w/Attachments)

L. Birkmire - SSB 2-2 (w/Attachments)

D. Eisenhut - NSRB (w/Attachments)

M. Murphy - PADEP BRP (w/Attachments)

S. Focht - ANI (w/Attachments)

Nuclear Annual Radioactive Effluent Release No. 35 2009 Limerick Generating Station Report

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EXELON GENERATION COMPANY, LLC ANNUAL RADIOACTIVE EFFLUENT RELEASE REPORT NO. 35 January 1, 2009 through December 31, 2009 EXELON GENERATION COMPANY, LLC LIMERICK GENERATING STATION UNITS NO. 1 AND 2 DOCKET NO. 50-352 (Unit 1)

DOCKET NO. 50-353 (Unit 2)

Submitted to The United States Nuclear Regulatory Commission Pursuant to Facility Operating License:

NPF-39 (Unit 1)

NPF-85 (Unit 2)

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EXELON GENERATION COMPANY, LLC TABLE OF CONTENTS SECTION PAGE

1.

Introduction 1

2.

Supplemental Information 1

A Regulatory Limits 1

B Effluent Concentration Limits Effluent Concentration Limits 2

C Average Energy (E) 2 D Measurements and Approximations of Total Radioactivity 2

E Batch Releases 4

F Abnormal Releases 4

G Spills 4

H Revisions to the ODCM 5

I Radioactive Effluent Monitoring Instrumentation Out of Service for More Than 30 Days 5

J Independent Spent Fuel Storage Installation (ISFSI) 5 K

Compliance to 40 CFR 190 Limits 5

Appendix A - Effluent and Waste Disposal Summary 7

Appendix B - Solid Waste and Irradiated Fuel Shipments 17 Appendix C - Radiological Impact to Man 21 Appendix D - Meteorological Data 25 Page

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1.

Introduction In accordance with the reporting requirements of Technical Specification 6.9.1.8 applicable during the reporting period, this report summarizes the effluent release data for Limerick Generating Station Units 1 and 2 for the period January 1, 2009 through December 31, 2009. This submittal complies with the format described in Regulatory Guide 1.21, "Measuring, Evaluating and Reporting Radioactivity in Solid Wastes and Releases of Radioactive Materials in Liquid and Gaseous Effluents from Light-Water Cooled Nuclear Power Plants", Revision 1, June, 1974.

Meteorological data was reported in the format specified in Regulatory Guide 1.23, Revision 1, "Meteorological Monitoring Programs For Nuclear Power Plants".

All vendor results were received and included in the report calculations. Therefore the 2009 report is complete.

2.

Supplemental Information A.

Regulatory Limits Limit Units Receptor ODCM and 10 CFR 50, Appendix I Desian Obiective Limits

1. Noble Gases:

a.

< 500

< 3000

b.

<10

< 20

c.

< 20

< 40

d.

<10

< 30 mrem/Yr Total Body mrem/Yr Skin ODCM Control 3.2.2.1.a Quarterly air dose limits ODCM Control 3.2.2.2.a m Rad mRad m Rad mRad m rem mrem Air Gamma Air Beta Air Gamma Air Beta Total Body (Gamma)

Skin (Beta)

Yearly air dose limits ODCM Control 3.2.2.2.b 10 CFR 50, Appendix I, Section II.B.2(b)

2. lodines, Tritium, Particulates with Half Life > 8 days:

a.

< 1500 mrem/Yr Any Organ

b.

<15

c.

< 30 m rem m rem Any Organ Any Organ

3. Liquid Effluents

a.

Concentration 10 CFR 20, Col. 2 Appendix B, Table 2 ODCM Control 3.2.2.1.b Quarterly dose limits ODCM Control 3.2.2.3.a Yearly dose limits ODCM Control 3.2.2.3.b ODCM Control 3.2.1.1 Quarterly dose limits ODCM Control 3.2.1.2.a Yearly dose limits ODCM Control 3.2.1.2.b Yearly dose limits ODCM Control 3.2.3

b.

<3

<10

c.

<6

< 20

4. 40 CFR 190

<25

< 75 mrem mrem mrem mrem mrem mrem Total Body Any Organ Total Body Any Organ Total Body or Organ Thyroid Page 1

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EXELON GENERATION COMPANY, LLC B.

Effluent Concentration Limits 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 ODCM Controls 3.2.2.2.a and 3.2.2.2.b.

The Effluent Concentration Limit (ECL) specified in 10 CFR 20, AppendixB, Table 2, Column 2 for identified nuclides, were used to calculate permissible release rates and concentrations for liquid release per the Limerick Offsite Dose Calculation Manual Cohtrol 3.2.1.1., The total activity concentration for all dissolved or entrained gases was limited to <'2E-04 pCi/ml.

C. Average Energy (E)

The LimerickODCM :imits~the instantaneous doseequivalent rates due to the release of noble gases to less than or equal4o 500, mrem/year to the total body. and less than 'or equal to 3000 mrem/year to the skin. The average beta and gamma energies (E) 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, m'aybe used to calculate doses inlieu of. more sophisticated software. The Limerick, radioactive-effluent programrnem ploys the methodologies presented in U.S. NRC Regulatory Guide 1.109 "Calculation of Annual Doses to Man from Routine. Releases of Reactor Effluents for the Purpose of Evaluating Compliance with' 10 CFR Part 50, Appendix I,"

Revision 1, October 1977 and NUREG-01 33, "Preparation of Radiological Effluent Technical Specifications for Nuclear Power Plants, October 1978. Therefore, average energies are not applicable to Limerick.

D. Measurements andApproximations of Total Radioactivity

1.

Fission and Activation Gases.

The method used for Gamma Isbtopic Analysisis the Canberra Gamma Spectroscopy System with a gas Marinelli, beaker. Airborne effluent gaseous activity was continuously monitored and recorded in accordance with 0DCM Table,4.2-2. Additional vent grab samples were taken from the North Stack, Unit 1 South Stack and Unit 2 South Stack andanalyzed at least monthly to determine the isotopic mixture of noble gas activity released for the month. The data from the noble gas radiation monitor were analyzed to report net noble gas effluentactivity. When no activity was found in the grab isotopic analysis; the isotopic mixturewas assumed to be that evaluated in the UFSAR (Section 11.5, Table 11.5-4). If activity was founld in the'grab isotopic analysis, the isotopic mixture-for the Noble Gas Monitor was determined from that isotopic mixture.

Each mdnth'a rm-onitor'background was determined at the time of the noble gas grab sample and used to determine net radiation monitor activity. When no isotopic activity w

was identified in the grab nobl6 gas sample, the noble gas radiation monitor 15-minute average data for one-hour prior to'and one-hour post noblegas grab sampling were

-used to determine monitor background for the month. The mean plus two standard deviations was used as background for each Noble Gas Monitor. When activity was identified the background determination was made from the last month that no activity was found.

2.

Particulates and lodines The method used for Gamma Isotopic Analysis is the Canberra Gamma Spectroscopy System with a particulate filter (47 mm) or charcoal cartridge, respectively. Particulate and iodine activity was continuously sampled and analyzed in accordance with ODCM Table 4.2-2. Charcoal and particulate samples are taken from the North Stack, Unit 1 Page 2

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EXELON GENERATION COMPANY, LLC South Stack, Unit 2 South Stack and the Hot Maintenance Shop exhausts and analyzed at least weekly to determine the total activity released from the plant based on the highest vent flow rates recorded for the sampling period.

3.

Liquid Effluents Each batch of, liquid effluent was sampled and analyzed for gamma isotopic activity in accordance with ODCM Table 4.2-1 prior to release.. The total activity of each released batch was'determined by multiplying each nuclide's concentration by the total volume discharged and then summing. The total activity released during a month was then determined by sum ming the activity content of all batch releases discharged during the month.

4.

Tritium in Liquid and Gaseous Effluents Tritium in Liquid Effluents is analyzed using a Liquid Scintillation Counter.

Air from stack effluentswas-passed through two bubblers in series "and an aliquot of the Water from each bubbler was analyzed2using'a Liquid Scintillation Counter.

5.

Composite Samples..and Low'er Limitof Detection (LLD)

.,Particulate air'samples were composited quarterly and analyzed for gross alpha, Sr-89

..and Sr-90. Liquid. radwaste samples were composited monthly and quarterly and analyzed for, gross alpha,.(monthly) and Fe-55, Srr89 and Sr-90.(quarterly). 'These composites were submitted to an offsite vendor laboratory for analysis.

The 0DCM required lower limit of detection for'airborne and liquid releases are as follows:

Airboene' "LLD Gross Alpha 1 E-11 uCi/cc Sr-89, Sr-90 1E-11 uCi/cc 1-131 1E-12 uCi/cc 1-133 1E-10 uCi/cc Principal'Gammad Emitters (Mn-54, Fe-59, Co-58, Co-60, Zn-65, Mo-1E-11 uCi/cc 99, I-131,,CS-1134, Cs-137,Ce-1 41, Ce-i 44)

Noble Gas (Kr-87, Kr-88,,Xe-il338 Xe-i 33m, Xe-1 35,Xe-135m, Xe-138)1EOuic H-3 1 E-06 uCi/cc Liquid:

Principal Gamma Emitters (Mn-54, Fe-59, Co-58, Co-60, Zn-65,Mo--

I I.

.. I.

I.

..., I..

5E-07 uC i/m l 99, Cs-134, Cs-137,,Ce-141,. Ce-144) 1-131 1E-06 uCi/mI Entrained Gases (Kr-87, Kr-88, Xe-133, Xe-133m, Xe-1 35, Xe-135m, 1E-05 uCi/ml

.Xe-138) 1 E I

H-3 1

"E-05 uCi/mI Gross Alpha, 1E-07 uCi/ml Sr-89, Sr-90 5E-08 uCi/mI Fe-55 1E-06 uCi/mI

6.

Estimated Total Error Present Procedure CY-AA-170-2100, Estimated Errors of Effluent Measurements, provides the methodology to obtain an overall estimate of the error associated with radioactive effluents.

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Batch Releases Liquid Qtr 1

'Qtr 2 Qtr3 Qtr 4 Total Number of Batch Releases 38 34 39 35 146 Total time period for batch releases (min) 3.26E+03 2.84E+03 3.16E+03 2L84E+03 1.21E+04 Maximum time period for batch release (min) 1.20E+02 1.13E+02 9.60E+01 1.01 E+02 1.20E+02 Average time period for batch release (min) 8.57E+01 8.34E+01 8.10E+01 8!110E+01 8.28E+01 Minimum time period for batch release (min) 5.50E+01 1.60E+01 4.OOE+01 3'50E+01 1.60E+01 Average stream flow (Schuylkill River) during

ýi periods of release of effluents into a flowing 2.42E+04 2.11 E+04 2.19E+04 4.42E+04 2.42E+04 stream (gpm)

Aux Boiler Waste Oil Incineration Qtr 1 Qtr 2 Qtr 3

-,Qtr 4 Total Number of Batch Reieases 0

01.

0 0

0 Total time period for batch releases (min)

,,0

0.

0 0

Maximum time periodfor-batch release(min) 0!.

0 0

Average time period for batch release (mir) 0 0

0 0

0 Minimum time period for batch.release (min) 0 0

0 0

0 Gaseous Qtr 1 Qtr 2

.Qtr 3 Qtr 4 Total Number of Batch. Releases 0

0.

0 0

Total time period for batch 'releases +(min) 0 0

'.'0 0

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

0 0

0 Average time period for batch release (min) 0

0.

0 0

0 Minimum time period for batch release (min)

-0 0

0 0

0 Abnormal Releases

1. Liquid Qtrl1 Qtr2 Qtr 3 Qtr 4 Total

,Number of Releases:

I 1-0 0

1 Total Activity Released (Ci) 0W 7.47E-04

0 0

7.47E-04

2. Gaseous Number of Releases 0

0 0

Total Activity Released (Ci)

0 0-0 1 0 0

F.

G. Spills On February 138 2009 a leak from the exterior walls of both Ul and U2 condenser bays was discovered via operator rounds (1R880716). The condensation was observed drippijrng directly to open ground and asphalt. Water samples were collected and analyzed for gamma isotopic and tritium. No gamma emitting nuclides were identified; however, tritium was identified at a concentiration of 3.90E-03 uCi/ml.

Sampling of NPDES outfalls verified that no offsite release of tritium occurred. The release to ground occurred for up to six days until catch containments were installed. The total release of tritium to the ground was conservatively estimated at 1.23E-03 Curies. Groundwater sampling, as part of the radiological groundwater protection program (RGPP), has identified tritium in one down gradient well, MW-LM-9, at a maximum concentration of 1750 pCi/L, which is below the environmental lower limit of detection (LLD) of 2000 pCi/L.

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EXELON GENERATION COMPANY, LLC The leaks along the condenser bay joints were sealed with caulk and periodic inspections for future leaking has been added to operator rounds. All data related to this release was added to the Stations 10 CFR 50.75(g) decommissioning file.

On April 3, 2009 the water from the catch containments was released to the station's holding pond. The holding pond releases through the normal liquid effluent release point at outfall 001. The catch containment water contained approximately 747 uCi of tritium.

H. Revisions to the ODCM There were no changes made to the ODCM in 2009 Radioactive Effluent Monitoring InstrUmentation Out of Service for More Than 30 Days Per ODCM Control 3.1.1, "Radioactive.Liquid Effluent Monitoring Instrumentation" and Control 3.1.2 "Radioactive Gaseous Effluent Monitoringilnstrumentation", instrumentation requires:

With less than the minimum number of radioactive gaseous effluent monitoring instrumentation channels OPERABLE; take the ACTION shown in Table 3.1-1 (liquids) or and Table 3.1-2 (gas). Restore the inoperable instrumentation to OPERABLE status within the time specified in the ACTION or explain in the next Annual Radioactive Effluent Release Report.why this inoperability-wasnotcorrected-within the time specified.. The following is a discus'sion-of instrumentation out of service-for greater than 30 days:

As reported in the 2008 ARERR, the Liquid Radwaste effluent line flow indicator (FI-063-053) was declared inoperable on June 22, 2008 and remained inoperable through the end of 2008.

Release flows were conservatively reduced to ensure that release flows did not exceed the ODCM limit of 255 gallons per minute.

The effluent line flow monitor was-not repaired within the 30-day time frame was due to the complex troubleshooting that was required to determine the cause of the suspect flow readings. The flow orifice was eventually replaced, which required an engineering change request to evaluate the replacement. However, this did not eliminate the issue.

Troubleshooting is continuing.

The Liquid Radwaste effluent line flow indicator (FI-063-053) remained inoperable until July 1, 2009 after Engineering completed their assessment (IR859104, A1692301;),. At no time did the discharge flow exceed the pre-release calculation criteria.

J.. Independent Spent Fuel Storage Installation (ISFSI)

An Independent Spent Fuel Storage Installation (ISFSI) was placed in service starting July 21, 2008. In 2009 the dose to nearest resident to the ISFSI was non detectable using thermoluminescent dosimeters from the Radiological Environmental Monitoring, Program.

K. Compliance to 40 CFR 190 Limits The radioactive material released during this repor'ting period and the doses listed in this report were within the limits of the ODCM and 40 CFR 190. A detailed analysis of doses to Members of the Public is presented in Appendix C, Radiological Impact to Man.

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LIMERICK GENERATING STATION - UNITS 1 & 2 EXELON GENERATION COMPANY, LLC Appendix A Effluent and Waste Disposal Summary Page 7

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. EXELON GENERATION COMPANY, LLC LIST OF TABLES PAGE TABLE A-1 GASEOUS EFFLUENTS - SUMMATION OF ALL RELEASES 11 TABLE A-1A GASEOUS EFFLUENTS-GROUND-LEVEL RELEASE-BATCH MODE 14 TABLE A-1B GASEOUS EFFLUENTS - GROUND LEVEL RELEASE - CONTINUOUS MODE 13 TABLE A-2 LIQUID EFFLUENTS - SUMMATION OF ALL RELEASES 14 TABLE A-2A LIQUID EFFLUENTS - BATCH MODE 15 TABLE A-2B LIQUID EFFLUENTS - CONTINUOUS MODE 16 Page 9

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EXELON GENERATION COMPANY, LLC TABLE A-1 GASEOUS EFFLUENTS - SUMMATION OF ALL RELEASES PERIOD 2009 Fission And Activation Units Qtr 1 Qtr 2 Qtr 3 Qtr 4 Total Uncertainty Gasses

(%)

Total Release Ci 6.35E+00 5.51E+00 1.31E+01 3.18E+00 2.82E+01 36.6 Average Release Rate for uCi/sec Period 8.05E-01 6.99E-01 1.67E+00 4.03E-01 8.93E-01 Dose - Gamma Air Dose mrad 1.1OE-02 7.07E-03 1.94E-02 3.91 E-03 4.14E-02

- Beta Air Dose mrad 6.41 E-03 4.25E-03 1.12E-02 2.36E-03 2.42E-02 Percent of ODCM Limit Pe fMmito 0.11 0.07 0.19 0.04 0.21

- Gamma Air Dose

- Beta Air Dose-0.03 0.02 0.06 0.01 0.06 Radioiodines Units Qtr 1 Qtr 2 Qtr 3 Qtr 4 Total Uncertainty Total Release Ci 7.85E-05 9.35E-06

< LLD

< LLD 8.78E-05 20.4 Average Release Rate for uCi/sec 9.96E-06 1.19E-06

< LLD

< LLD 2.79E-06 Period Percent of ODCM Limit Particulates Units Qtr 1 Qtr 2 Qtr 3 Qtr 4 Total Uncertainty Total Release Ci 2.38E-05 2.50E-05

< LLD

< LLD 4.88E-05 22.6 Average Release Rate for uCi/sec 3.02E-06 3.17E-06

< LLD

< LLD 1.55E-06 Period

'Percent of ODCM Limit Gross Alpha Radioactivity Ci

< LLD

<LLD-Tritium Units Qtr 1 Qtr 2 Qtr 3 Qtr 4 Total Uncertainty Total Release Ci 1.25E+01 5.42E+00 7.50E+00 7.96E+00 3.34E+01 15.7 Average Release Rate for Period uCi/sec 1.59E+00 6.87E-01 9.51 E-01 1.01 E+00 1.07E+00

[Percent of ODCM Limit I.

I I

Iodine 131 & 133, Units Qtr 1 Qtr 2 Qtr 3 Qtr 4 Total Particulate & Tritium Organ Dose mrem 2.19E-02 5.74E-03 7.35E-03 7.81E-03 3.68E-02 Percent of ODCM Limit 0.15 0.04 0.05 0.05 0.12

ODCM Limit for combined Iodine, tritium and particulate only, which is shown in Item E.

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EXELON GENERATION COMPANY, LLC TABLE A-1A GASEOUS EFFLUENTS-GROUND-LEVEL RELEASE-BATCH MODE PERIOD 2009 Fission And Units Qtr 1 Qtr 2 Qtr 3 Qtr 4.

Total Activation Gasses Ar-41 Ci N/A N/A N/A N/A N/A Kr-85 Ci N/A N/A N/A N/A N/A Kr-85m Ci N/A N/A N/A N/A N/A Kr-87 Ci N/A N/A N/A N/A N/A Kr-88 Ci N/A N/A N/A N/A N/A Xe-133 Ci N/A N/A N/A N/A N/A Xe-135 Ci N/A N/A N/A N/A N/A Xe-135m Ci N/A N/A N/A N/A

'N/A Xe-138 Ci N/A N/A N/A N/A N/A

!Total Ci N/A N/A

[

N/A N/A N/A Radioiodines Units Qtr 1 Qtr 2

[

Qtr 3 Qtr 4 Annual 1-131 Ci N/A N/A

. N/A N/A N/A 1-135 Ci N/A N/A N/A N/A N/A Total Ci N/A N/A N/A N/A N/A Particulates Units Qtr 1 Qtr2 Qtr 3 I

Qtr 4 Annual Cr-51 Ci N/A N/A N/A N/A N/A Mn-54 Ci

N/A N/A N/A, N/A N/A Co-58 Ci N/A N/A N/A N/A N/A Co-60 Ci N/A N/A N/A N/A N/A Zn-65 Ci N/A N/A N/A N/A N/A Sr-89 Ci N/A N/A N/A N/A

,N/A Sr-90 Ci N/A N/A N/A N/A N/A Mo-99 Ci N/A N/A N/A N/A N/A Ag-110m Ci _

N/A N/A N/A N/A N/A Cs-1 34 Ci N/A N/A N/A N/A N/A Cs-137 Ci N/A N/A N/A N/A N/A Ba-140 Ci N/A N/A N/A N/A i

N/A La-140 Ci N/A N/A N/A N/A N/A Ce-141 Ci' N/A N/A N/A N/A N/A Ce-144 Ci N/A N/A N/A N/A N/A Total Ci N/A N/A N/A N/A N/A IH-3 Ci N/A N/A N/A N/A N/A IGross Alpha.

Ci N/A N/A N/A I

N/A N/A Page 12

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LIMERICK GENERATING STATION - UNITS 1 -&2 EXELON GENERATION COMPANY, LLC TABLE A-1 B GASEOUS EFFLUENTS - GROUND LEVEL RELEASE - CONTINUOUS MODE PERIOD 2009 Fission And Activation Gasses Units Qtr 1 Qtr 2 Qtr 3 Qtr 4 Total Kr-85m Ci 1.20E-01 9.87E-02 2.31 E-01 5.66E-02 5.07E-01 Kr-85 Ci 3.57E-01 1.23E-01 4.14E-01 5.83E-02 9.53E-01 Kr-87 Ci 1.92E-01 1.23E-01 3.14E-01 6.82E-02 6.97E-01 Kr-88 Ci 3.19E-01 1.67E-01 4.61E-01 8.90E-02 1.04E+00 Ar-41 Ci 1.06E-01 2.77E-01 9.40E-01 1.72E-01 1.49E+00 Xe-131m Ci 8.95E-03 3.08E-03 1.04E-02, 1.46E-03 2.39E-02 Xe-133 Ci 5.86E-01 1.45E+00 2.67E+00 8.97E-01 5.61E+00 Xe-1 35m Ci 1.22E+00 1.30E+00 2.83E+00.

7.68E-01 6.13E+00 Xe-135 Ci 1.59E+00 1.20E+00 2.89E+00 6.80E-01 6.36E+00 Xe-138 Ci 1.84E+00 7.69E-01 2.36E+00 3.87E-01 5.35E+00 Total Ci 6.35E+00,.

5.51E+00 1.31 E+01 3.18E+00 2.82E+01 Radiolodines Units; Qtr 1 Qtr 2 Qtr 3 Qtr 4 Total I1-31 Ci 7.85E-05 9.35E-06

< LLD

< LLD 8.78E-05 1-133 Ci

< LLD

< LLD 1-135 Ci

<LLD

<LLD Total Ci 7.85E-05',

9.35E-06

< LLD

< LLD 8.78E-05 Particulates Units Qtr 1

" Qtr 2 Qtr 3 Qtr 4 Annual Cr-51 Ci

<LLD

<.LLD

<LLD

<LLD Mn-54 Ci

<LLD I

<LLD

<LLD Co-58 Ci

< LLD

< LLD Co-60 Ci 2.38E-05

< LLD

< LLD 2.38E-05 Zn-65 Ci

< LLD

<LLD

<LLD Sr-89 Ci

< LLD

<,LLD

< LLD I

<,LLD Sr-90 Ci

< LLD

<LD

<LLD

< LLD

<LLD Mo-99 Ci

< LLD

< LLD:",

< LLD

<LLD Ag-110m Ci

< LLD

<LLD Sb-125 Ci

< LLD 2.50E-_05

< LLD.

< LLD 2.50E-05 Cs-134 Ci

< LLD

< LLD.

< LLD

< LLD Cs-137 Ci

<LLD

<L-LD

<LLD

<LLD Ba-140 Ci

<fLD

< LLD

< LLD La-140 Ci

< LLD

<LLD

< LLD

< LLD Ce-141 Ci

< LLD

<LLD

<LLD Ce-144 Ci

<LLD

< LLD

< LLD iLLD

. < LLD Total Ci 2.38E-05 2.50E-05

< LLD

< LLD 4.88E-05 IH-3 Ci I

1.25E401 5.42E+00 I7.50E+00 J 7.96E+00 I

3.34E+01 IGross Alpha Ci I

< LLD

< LLD I

< LLD Page 13

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LIMERICK GENERATING STATION - UNITS 1 & 2 EXELON GENERATION COMPANY, LLC TABLE A-2 LIQUID EFFLUENTS - SUMMATION OF ALL RELEASES PERIOD 2009 Fission and Activation Products Excluding Units Qtr 1 Otr 2 Qtr 3 Qtr 4

Total, Uei Tritium, Gasses & Alpha)

Total Release Ci 6.63E-04 2.35E-03 3.89E-04

-6.26E-04 4.03E-03 21.1 Average Concentration uCi/mI 8.20E-09 3.81 E-08 5.44E-09

4.92E-09 1.18E-08 Dose

- Whole Body mrem 2.44E-01 1.17E-01 1.90E-01 2.23E-01 7.75E-01

-.Organ mrem

.2.44E-0I 1.17E-01 1.90E-01 2.23E-01 7.75E-01

% of ODCM Limit6.21

- Whole Body Dose*

8.15 3.91 6.32 7.44 12.91

- Organ Dose*

2.44 1.17 1.90 2.23 3.87

+

Uncertainty Tritium Units Qtr 1 Qtr 2

_Qtr 3 Qtr 4 Total

(%)

Total Release Ci

'7.33E+00 4.58E+00ý :5.40E+00

'5.12E+00 2.24E+01 6.4 Average Concentration uCi/ml 9.06E-05 7.41 E-05 7.57E-05 4.02E-05 6.57E-05

% of ODCM Limit - ECL 0.91%

0.74%

0.76%

0.40%

0.66%

'Dissolved and Entrained T

4 Total Uncertainty Gases

+Units Qtr 1 Qtr 2 Qtr 3 Qtr 4 Total

(%)

Total Release Ci

<LLD

< LLD

- <LLD 3.63E-05 3.63E-05 21.1 Average Concentration uCi/ml N/A N/A' N/A 2.85E-10

.1.06E-10

% of ODCM Limit - ECL' N/A N/A N/A 0.00%

0.00%

o ae-

'UnTartainty Gross Alpha Units Qtr 1

-Qtr 2 Qtr 3

- Qt, 4 Total Uei Total'Release

}

Ci

<LLD

<LLD

< LLD

<LLD 23.0 Average Concentration uCi/mI N/A N/A N/A N/A Voum ofWse-e AUncertainty Volume of Dilution Water Units Otr 1 Qtr 2 Otr 3 Qtr 4 Total

(%)

used during period I___ N___f r

Total Liters 7.87E+07 5.99E+07 6.18E+07 1.25E+08 3.33E+08 3.6

[Averane Concentration I uCi/rnl I N/A I

N/A I

Percent of limit incluides gases and tritium.

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LIMERICK GENERATING STATION - UNITS 1 &'2 EXELON GENERATION COMPANY, LLC TABLE A-2A LIQUID EFFLUENTS - BATCH MODE PERIOD 2009 Fission and

.2 Activation Products Units Qtr 1 Qtr 2 Qtr 3 Qtr 4 Total Cr-51 Ci 6.24E-05 3.15E-04

< LLD

< LLD 3.78E-04 Mn:-54 Ci 1.29E-04 3.02E-04 4.61 E-05 2.30E-05 5.OOE-04 Mn-56 Ci

< LLD 1.08E-06

< LLD

<LLD 1.08E-06 Co-58 Ci 3.O0E-06 2.72E-05

< LLD 2.36E-05 5.38E-05 Fe-55 Ci

< LLD

<LLD Fe-59 Ci

< LLD

<LLD

< LLD

< LLD Co-60 Ci 4.28E-04 1.47E-03 2.65E-04 2.57E-04 2.42E-03 Zn-65 Ci.

2.18E-05 1.83E-04 1.15E-05 2.71E-04 4.88E-04 Sr-89 Ci

< LLD,

<LLD

<. LLD

< LLD

<LLD Sr-90 Ci

< LLD

<LLD

< LLD

< LLD Y-92 Ci

< LLD 1.27E-05

< LLD

< LLD 1.27E-05 Zr-95 Ci LLD

<LLD

< LLD'

,LLD Nb-95 Ci.

1.06E-06 1.04E-06

< LLD.

< LLD 2.10E-06 Nb-97 Ci

<LLD:

-< LLD

< LLD 7.94E-07

'7.94E-07 Mo-99 Ci-

< LLD,

<LLD

<;.LLD..,

< LLD

< LLD TC-99m Ci

<LLD

'<LLD

<LLD

<LLD AG-110m Ci

<LLD 8.64E-06

< LLD

< LLD 8"64E-06 Sb-124 Ci

<LLD 1.38E-05 8.09E-06 1.59E-06 2.35E-05 Sb-125 Ci 6.50E-06 7.24E-06, 5.11E-05.

4.42E-05 1.09E-04 1-131

.CI

< LLD, 1.80E-06.-.

<.LLD,.

4.51 E-07 2.25E-06 Cs-134 Ci

< LLD.

2.26E-06

<.LLD

< LLD 2.26E-06 Cs-137 Ci 1.13E-05 4.53E-06 6:69E-06 2.36E-06 2.49E-05 Ba-140 Ci

< LLD-

<LLD

<'LLD La-140 Ci

<,LLD

<LLD

<LLD 1'.54E-0'06 1.54E-06 Ce-141 Ci

<LLD

<LLD, LLD

<LLD

< LLD Total Ci 6.63E-04 2.35E-03 3.89E-04 6.26E-04 4.03E-03 Dissolved and" Dissolved and Units

.Qtr 1 Qtr 2 Qtr-3,

... Qtr 4 Total' Entrained Gases Xe-131m Ci

< LLD

< LLD 3.02E-05 3.02E-05 Xe-133 Ci

< LLD

.<-LLD

-6.,09E-06.,-,

6.09E-06 Xe-135 Ci

< LLD

< LLD Total Ci

< LLD

< LLD 3.63E-05 3.63E-05 IH-3 Ci 1 7.33E+00 4.58E+00 5.40E+00 I 5.12E+00 2"24E+01 IGross Alpha Ci I

< LLD

<LLD I

< LLD I

< LLD

<LLD Page 15

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LIMERICK GENERATING STATION - UNITS 1 & 2.

EXELON GENERATION COMPANY, LLC TABLE A-2B LIQUID EFFLUENTS - CONTINUOUS MODE

',PERIOD 2009 Fission and Units Qtr I Qtr 2 Qtr 3 Qtr 4 Total Activation Products Cr-51 Ci N/A N/A N/A N/A N/A Mn-54 Ci N/A N/A N/A N/A N/A Fe-55 Ci N/A N/A N/A N/A

[ N/A Co-58 Ci N/A N/A N/A N/A N/A Fe-59 Ci N/A N/A N/A N/A N/A Co-60 Ci N/A N/A N/A N/A N/A Zn-65 Ci N/A N/A N/A N/A N/A Sr-89 Ci N/A N/A N/A N/A N/A Sr-90 Ci N/A N/A N/A N/A N/A Zr-95 Ci N/A N/A N/A N/A N/A Nb-95 Ci N/A N/A N/A N/A N/A Mo-99 Ci N/A N/A N/A N/A N/A Tc-99m Ci N/A N/A N/A N/A N/A Ag-i9m Ci N/A N/A N/A N/A N/A 1-131 Ci N/A N/A N/A N/A N/A Cs-134 Ci N/A N/A N/A N/A N/A Cs-137 Ci N/A N/A N/A N/A N/A Ba-140 Ci N/A N/A N/A N/A N/A La-140 Ci N/A N/A N/A N/A N/A Ce-141 Ci N/A N/A N/A N/A

'N/A Total Ci N/A N/A N/A N/A

'N/A Dissolved and Units Qtr 1 Qtr 2 Qtr 3 Qtr 4 Total Entrained Gases j

Xe-131m Ci N/A N/A N/A N/A IIN/A Xe-133 Ci N/A N/A N/A N/A N/A Xe-135 Ci N/A N/A N/A N/A

ýrN/A Total Ci N/A N/A N/A N/A N/A 1H-3 Ci I

N/A I

N/A.

I N/A I

N/A I

!N/A lGross Alpha Ci I

N/A I

iN/A I

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LIMERICK GENERATING STATION - UNITS 1 & 2 EXELON GENERATION COMPANY, LLC Appendix B Solid Waste and Irradiated Fuel Shipments Page 17

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LIMERICK GENERATING STATION - UNITS 1 & 2 EXELON GENERATION COMPANY, LLC (Page Intentionally Left Blank)

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LIMERICK GENERATING STATION - UNITS 1 &2 EXELON GENERATION COMPANY, LLC '

A.

Solid waste shipped offsite for burial or disposal (not irradiated fuel) 01/01/2009 - 12/31/2009

1. Type of waste Type of waste Unit 12 Month Period Estimated Error %

a. Spent resin, filters sludges, evaporator m3 114.21 25%

bottoms, etc Ci 7.56E+02

b. Dry compressible waste, contaminated m3 87.39 25%

equipment, etc.

Ci 4.74E+00 Irradiated components, control rods, etc.

m3 None N/A Ci None Other (Describe) m3 None N/A Ci None

2.

Estimate of Major Nuclide Composition (By Waste Type)

A. Category A - Spent Resin, Filters, Sludges, Evaporator Bottoms, etc.

Waste Class Isotope A

Percent Curies

Abundance C-14 2.77E-01 0.04%

Mn-54 4.05E+01 5.36%

Fe-55 4.99E+02 66.01%

Co-60 1.62E+02 21.42%

Ni-59 4.24E-02 0.01%

Ni-63 7.99E+00 1.06%

Zn-65 3.47E+01 4.59%

Sr-90 1.54E-01 0.02%

Cs-137 5.93E+00 0.78%

Ce-144 2.14E+00 0.28%

Pu-241 1.54E+00 0.20%

H-3 5.83E-01 0.08%

Cr-51 1.11E+00 0.15%

Totals 7.56E+02 100.00%

Activity is estimated Page 19

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LIMERICK GENERATING STATION - UNITS 1 & 2 EXELON GENERATION COMPANY, LLC B.

Category B - Dry Compressible Waste, Contaminated Equipment, etc.

Waste Class A Percent Isotope Curies

Abundance Mn-54 2.35E-01 4.96%

Fe-55 3.39E+00 71.61%

Co-60 9.20E-01 19.43%

Ni-63 4.79E-02 1.01%

Zn-65 7.60E-02 1.61%

Cs-137 1.40E-02 0.30%

Ce-144 5.1OE-02 1.08%

TOTALS 4.74E+00 100.00%

Activity is estimated

3.

Solid Waste (Disposition) 4.

5.

Number of Mode of Transportation Destination Shipments 3

Truck Studsvik (THOR) to Energy Solutions / Clive 41 Truck Duratek to Energy Solutions / Clive 15 Truck Limerick Gen. Sta. to Energy Solutions / Clive Waste (Processing)

Number of Mode of Transportation Destination Shipments I

37 Truck Limerick to Duratek Waste (Solidification)

Number of Mode of Transportation Destination Shipments 0

N/A N/A Category A - 13 shipments Type A LSA Category A - 6 shipments > Type A LSA Category B - 33 shipments Type A LSA Category C - No shipments made Category D - No shipments made B.

Irradiated Fuel Shipments (disposition) lNumber of Shipmentsj Mode of Transportation Destination N

10 1N/A N/A C. Changes to the Process Control Program Revision 7 of RW-AA-100, Process Control Program for Radioactive Wates was active on 01/23/2009. The changes wereadministrative in nature. The revision corrected formatting issues and standardized the use of shall, should, may and will in accordance with AD-AA-1 01-1002. The record retention requirements were moved to section 5 and corrected references. A complete legible copy of this document is attached.

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LIMERICK GENERATING STATION -UNITS 1 & 2 EXELON GENERATION COMPANY, LLC Appendix C Radiological Impact to Man Page 21

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LIMERICK GENERATING STATION - UNITS 1 &.2.

EXELON GENERATION COMPANY, LLC

..i (Page Intentionally Left Blank)

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LIMERICK GENERATING STATION - UNITS 1 & 2 EXELON GENERATION COMPANY, LLC Per ODCM Control 6.2, the Annual Radioactive Effluent Release Report shall include an assessment of the radiation doses to the hypothetically highest exposed MEMBER OF THE PUBLIC from reactor releases and other nearby uranium fuel cycle sources. For purposes of this calculation the following assumptions were made:

Gaseous Five year annual average meteorology and actual gaseous effluent releases were used.

Gamma air dose, Beta air dose, Total Body and Skin doses were attributed to noble gas releases.

G Critical organ and age group dose attributed to iodine, particulate and tritium releases.

The Receptor with the highest dose was the nearest residence in the ESE sector at 1004 meters (x/Q = 2.27E-06 s/mA3, D/Q = 1.88E-08 1/mA2).

100 percent occupancy factor was assumed.

For 40 CFR 190 compliance, the highest doses from the critical organ and critical age group for each release pathway was summed.

0 Thermoluminescence Dosimetry (TLD) measurements (minus background levels) obtained from the Radiological Environmental Monitoring Program for the nearest residence to the Independent Spent Fuel Storage Installation (ISFSI) was used to determine direct radiation exposure.

A summary of gaseous and liquid radiation doses to members of the public at these locations was as follows:

Maximum Individual Applicable Estimated Age Location

% of Limit Unit Dose Dose Group Distance Direction Applicable Noble Gas (meters)

(toward)

Limit Nearest Residence Gamma Air Dose 2.17E-03 All 1004 ESE 0.011 20 mRad Nearest Residence Beta Air Dose 1.27E-03 All 1004 ESE 0.003 40 mRad Nearest Residence Total Body 2.06E-03 All 1004 ESE 0.021 10 mrem Nearest Residence Skin 3.42E-03 All 1004 ESE 0.011 30 mrem Iodine, Particulate &

Tritium Nearest Residence Thyroid 6.06E-04 Teen 1004 ESE 0.002 30 mrem Liquid Total Body 7.75E-01 Child Aqua PA 12.92 6

mrem

[Liquid Liver 7.75E-01 Child Aqua PA 3.88 20 mrem 40 CFR 190 Compliance Gaseous Liquid Direct T%

of Pathway Effluents Effluents RadiationApplicable Limit Unit Limit Total Body Dose 2.06E-03 7.75E-01 0

7.77E-01 3.11 25 mrem Organ Dose 6.06E-04 7.75E-01 0

7.76E-01 3.10 25 mrem Doses calculated were well below all ODCM and 40 CFR Part 190 limits of 25 mrem to a real individual.

The ODCM does not require population doses to be calculated.

ODCM Control 6.2 also requires that the Annual Effluent Release Report shall include an assessment of the radiation doses from radioactive liquid and gaseous effluents to members of the public due to activities inside the Site Boundary during the report period. MEMBER OF THE PUBLIC shall include all persons not occupationally associated with the plant. This category does not include employees of the utility or contractors. Also excluded from this category are persons who enter the site to service equipment or to make deliveries. This category does include persons who use portions of the site for recreational, Page 23

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LIMERICK GENERATING STATION -. UNITS'!.

2 EXELON GENERATION COMPANY, LLC occupational education, or other purposes not associated with the plant. A MEMBER OF THE PUBLIC may receive up to 100 mrem in a year (10CFR20.1301). Areas within the site boundary, where radiation dose of this type could occur include the Limerick Information Center on Longview Road near tlhie rear exit of the plant, Frick's Lock on the south shore of the Schuylkill River and the railroad tracks that runs along the north shore of the River. The dose to State Police and National Guard personnel around the location of the Security Checkpoint was also included in this report. The radiation doses to Members ofl the Public have been estimated using methodology stated in the ODCM. The maximum gaseous dose to imembers of the public at these locations is based on the following assumptions:

Five year annual average meteorology and actual effluent releases for the the sectors encompacing the Railroad Tracks (W), Information Center, Frick's Lock and the Security Checkpoint were used.

Dose is from ground plane and inhalation only. No ingestion dose.

Adult age group was used for the State Police and National Guard Dose.

The maximum expected occupancy factor is 25% of a working year at all locations.

A summary of gaseous radiation doses to menmbers of ilt e:.ublic at these locations is as follows:

Iodine/Part/

Approx.

x/Q D/Q Total Body H3 Location Sector Distance x/^

D/Q Dose Organ (meters) s/mA3 1/mA2 mrem(1)

Dose, I

_mrem(

1)

R.R. Tracks W

225 2.53E-06 2.09E-08 2.38E-03 6.53E-04 Info. Center ESE 884 6.55E-07 7.78E-09 6.55E-04 1.93E-04 Frick's Lock WSW 450 5.27E-07 4.30E-09 4.99E-04 1.36E-04 National Guard /

Security NNE 682 2.37E-07 2.42E-09 3.57E-04 1.01 E-04 Check Point Doses calculated were a small fraction of the 10 CFR 20.1301 limits.

Notes:

(1) The limit for sum of the Total Body Dose and Organ Dose = 100 mrem (ref. 10 CFR 20.1301)

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LIMERICK GENERATING STATION - UNITS 1 & 2 EXELON GENERATION COMPANY, LLC Appendix D Meteorological Data 4'

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LIMERICK GENERATING STATION -UNITS 1 &,.2 EXELON GENERATION COMPANY, LLC h.

1)

(Page Intentionally Left Blank)

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LIMERICK GENERATING STATION - UNITS 1 & 2; LICENSEE:

EXELON GENERATION COMPANY, LLC LIST OF TABLES PAGE Table D - 1 Wind Speed by Direction Measured at 30 Feet for Various Stability Classes for the Limerick Generating Station, January - March, 2009 29 Table D - 2 Wind Speed by Direction Measured at 175 Feet for Various Stability Classes for the Limerick Generating Station, January-March, 2009 36 Table D - 3 Wind Speed by Direction Measured at 30 Feet for Various Stability Classes for the Limerick Generating Station, April - June, 2009 43 Table D - 4 Wind Speed by Direction Measured at 175 Feet for Various Stability Classes for the Limerick Generating Station, April - June, 2009 50 Table D - 5 Wind Speed by Direction Measured at 30 Feet for Various Stability Classes for the Limerick Generating Station, July - September, 2009 57 Table D - 6 Wind Speed by Direction Measured at 175 Feet for Various Stability Classes for the Limerick Generating Station, July - September, 2009 64 Table D - 7 Wind Speed by Direction Measured at 30 Feet for Various Stability Classes for the Limerick Generating Station, October - December, 2009 71 Table D - 8 Wind Speed by Direction Measured at 175 Feet for Various Stability Classes for the Limerick Generating Station, October - December, 2009 78 Table D - 9 Wind Speed by Direction Measured at 30 Feet for Various Stability Classes for the Limerick Generating Station, January - December, 2009 85 Table D - 10 Wind Speed by Direction Measured at 175 Feet for Various Stability Classes for the Limerick Generating Station, January - December, 2009 87 Table D - 11 Annual x/Q undepleded and D/Q values for the North Stack, Limerick Generating Station, 2009 89 Table D - 12 Annual x/Q undepleted and D/Q values for the South Stack, Limerick Generating Station, 2009 91 Page 27

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LIMERICK GENERATING STATION - UNITS 1 &?,2-EXELON GENERATION COMPANY, LLC.

A -~

V.

K (Page Intentionally Left Blank)

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Table D - 1 LIMERICK GENERATING STATION - UNITS 1 & 2 EXELON GENERATION COMPANY, LLC Wind Speed by Direction Measured at 30 Feet for Various Stability Classes for the Limerick Generating Station, January - March, 2009 Stability Period of Record: January - March 2009 Class -

Extremely Unstable l7lFt-26Ft Delta-T (F)

Winds Measured at 30 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

0 0

1 1

7 1

3 1

13 11 2

0 0

0 1

7 1

0 0

3 0

0 2

0 0

0 1

9 17 9

7 10 27 15 2

0 Total 2

49.

42 9

0 0

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

wind measurements in this stability measurements in stability class:

0 all stability classes:

34 Page 29

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Table D0- 1 LIMERICK GENERATING STATION -- UNITS I & 2' "M,

EXELON GENERATION COMPANY, LLC

'Wind Speed by Direction Measured at.30 Feet~for Various Stability Classes for the Limerick Generating Station, January-:-' March; 2009 Limerick Tower 1

.Pezicd. of Record: Januazy '- March, 2009 Stab'ility Class -Moderately Unstable

- 171Ft-26Ft Delta-T (F)

Winds Mesured :at.30 Feet L.

Wird Speed (in mph)

Wind Direction N

NNE NE ENE E

ESE SE SSE "SSW SW WSW W

WNW NW NNW

'Variabl6 1-3

'4-7 8-12 13-18, 19-24.

0 0

0O 0

0 0

1 1i.

1.

2 0

01 K.

0 1 '"

1' 13 2 C, 1

3 10.

7 3

0' 2

0 0.1 0

0z 02 0;,

0" 0

2 0:

1,;

7 23 6

0 0

0 0 *;

0 0

0.

0 01 12.

02 0*

0 0

3 0

a,

> 24 S0 0

0 t

0 0

-0 0

3/4 0 0

0 0

0

°.: 0 Total 3

2 0

1 0

1 2

15 3

2 5

19 46 10 0

Total 5.-

46 '

42 :

14:!

3 0

110 Hours of calm in this stability class-0.

Hours' of miesng: wind: rteaturen.ients in thi...

stability clalss:

0 Hours 'of missing' sta-bility' measuren-o a.2 in -all stability classes:

34 Page 30

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LIMERICK GENERATING STATION-UNITS 1 & 2 LICENSEE:

EXELON GENERATION COMPANY, LLC Table D -

1,4:;

Wind Speed by Direction Measured at 30 Feet for Various Stability Classes for the:

Limerick Generating Station, January-March;, 2009 Limerick Tower 1 Period of Record: January - March 2009

-Stability Class - Slightly Unstable 1-171Ft-267t Delta-T (F)

Winds Measured at 30 Feet Wind Speed (in mph)

Wind Directicn /

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

> 24 Total

-o-----

N 0

9 6

0 0

0 15 NNE 2

1 0,

0 0

.0 3

NE 0

1 0

0' 0

0 1

ENE 0'

0 0

. 0 0

E 0

2 1

0 0

0 3

'ESE 0r I f-

0.

0 0

1 SE 0,

2' 0

0 0

0 2

SSE 0

3 Olt 0

0 0

3 S

2 6'

1 11, 0

0 10

-SSW 1

7 1it 0

0

.0 9

SW 21 4*

0"

0.

0 0

5 WSW 0

4.

0 0.

0

.'.0 4

W 0."

4 3

2 2

0 11 I'WNW 2

3 4

7-1

,"0 17 NW 1

8>

17 20 0

t0 46 NNW 0

3,-

7.

4 0

.0 14 Variable 0_

0 0

0.

0 f-,0 0

Total 9*

58 40 34 3

2:..

0 144 Hours of calm in this stability class:

. 0 Hours of missing wind measurements in this.lstability.class:

t0o

.Hours of missing stabilitymeasurements in allastability classes:

34 Page 31

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Table D - 1 LIMERICK GENERATING STATION-- UNITS"1 & 2' EXELON GENERATION COMPANY, LLC Wind Speed byDirection Measured at 30 Feet for Various Stability Classes for the Limerick Generating Station, January --March, 2009 Limerick Tower 1 Pcriod of.Record: January:- March 2009

.Stability Class -

Neutral 171Ft-26Ft Delta-T (F)

Winds Measured at-130OFeet Wind Speed (in mph)

Wind Direction N

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

VrNW

-*Variable 1--3

-, 4-7 8-12-.

13-18' 10 18 16 10 11 9

6.,

6' 10..

7.

9 10r 14, 13 14, 7) 01 23 14 28 31 23 5

12 30 28.

29,.

9:

6.

12 44 -:

61.

25 0ý 20 0"

0 5.-

19 4'

4-.

7:

8-8 '..'

0" 16 80 121 44 0

1 0'

0 0 1 0'

0' 0.

0, 0'

31' 73 11;1 0

19-214*

> 24 0

0 0

0' 00 0

0 0

0 00 0

0 0

'0 0

.0 0

0 0

0 1

0 4

0 5

0 0

.0 0

'0 Total 54 32 44 46 53 18 19 40 46 44 18 16 52 172 274 87 0

e Total 170 380 :,

329';i 126 10 0

1015 Hours of calm in this stability class:

I.

Hours,-of missing-wirdne~surements in this.stability class:

0 :

Hours :of missing'stability meastrements in.all stability classes:

i 34 Page 32

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LIMERICK GENERATING STATION - UNITSA & 2 LICENSEE:

EXELON GENERATION COMPANY, LLC Table D

-Wind Speed by Direction Measured at 30 Feet for;Various Stability Classes for the Limerick Generatiný Station, January-March, 2009 Limerick Tower I Period of Record: January:-' March 2009 Stability Class - Slightly Stable

,Winds Measured at Wind:.Speed Wind 171Ft-26Ft.Delta-T (F) 30 Feet (in mph)

.r

°,

Direction 1i3 N

NNE NE ENE

';ESE SE SSE S

SSW SW WSW W

WNW NW NNW Variable Total 7

8' 10.

8 10' 2,

3 4

15.'

21 27 28 34 26 -.

31'.

4.

2 240 4-.'

3 0

1 7.

15 10z" 24 23 5

7 27,

37 25 19 1

218 8-12 13-18 19-24

> 24 Total 1

0o.

0 1

3 3

5' 1*

3 4':

7 6

9 9

2 0

0 0

0' 0.

0.

0 00 0-0' 0.,

0:

2 1

0' 0

0

.0 0

0 0

0

'7 0

0

'0 0

0 0

'0

-. 0 0

0 11 8

11 16 17 10 21 19 40 47 35 42 67 74 66 25 3

512 51 3

0 -,I,1 0 Hours of calm in Hours of missing this stability class:-

wind measurements in this

'5..

'stability class:

.0'.

.all

stability.classes:

.34 Hours of missing'stability measurements in Page 33

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LIMERICK GENERATING STATION - UNITS 1 & 2 LICENSEE:

EXELON GENERATION COMPANY, LLC Table D - 1 Wind Speed by Direction Measured at, 30 Feet forVarious Stability Classes for the Limerick Generating Station, January-March, 2009 Limerick Tower 1 Period of Record: January - March 2009 Stability Class - Moderately Stable

- 171Ft-26Ft Delta-T (F)

Winds Measured at 30 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7T 8-12

13-18 19-24'

> 24 1 Total 6

2 0

0.

0 0

8 NNE 3

0 0

x 0

3 NE 7

0 0

0k 0

0 7

1ENE 0

0 0'

0' 0

0 10 E

6 1

0'"

0' 0

0 7

ESE 7

0 0

0.

0

""0 7

SE 4

1"'

02 0

0 0

5 SSE 0

2 0'

0 0

0 2

S 2

5'

0.

01' 0

0 7

SSW 7

0 0'

0" 0

0 7

SW 5

1' 0

0 0

0 6

WSW 5

0' 0

0 0

0 5

W 1I7 2

0 0

13 WNW 14 5

0 0

0 0 0-19 NW 8

1

0.

0 0

0 0 9

NNW 4

0 0

0 4

Variabl6 8'

0 0

0:

0.

0 8

Total 107 20 0 0 0

0 127 Hours of calm in this stability class:

3 Hours of missing wind measurements in thie stability class:

0

.Hours of missing stability measurements in' all"'stability classes:

34 Page 34

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Table D -- '1 !

LIMERICK GENERATING STATION -. UNITS 1 & 2 EXELON GENERATION COMPANY, LLC W

Wird Speed by Direction Measured at 30 Feet for Various Stability Classes for the Limerick Generating Station, January-March, 2009 Limerick Tower I Period of.Record: January - March 2009 Stability Class - Extremely Stable

- 17lFt-26Ft Delta-T (F)

Winds Measured at

.30 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 "

8-12, 13-18 19-24.

> 24 Total N

NNE NE a

0 0

01 0

7.

0 0

9 0

0 &

0 0

ENE 5u 0.2 0

0 E

ESE SE SSE 4,

0 01 0

0 0

0

0 0

2 1

8 7

9 0

0 0

0 0"

5 4

2 1

0 0

0 1

0-0 0

0 0

0 S

0-.

0, 0-0 0

0 SSW SW WSW

-W WNW N

sW 0

1 0

0 0

3.

1 0

0 0

t

.0 0

0 0

14 16 9

0 0

4 14 16 9

0 0

0.

0 0-0 0

0 0

NNW Variable Total 5

e 5

89 0

0 0

0 (1

3 5

5 0

1 0

0:

0 0

0 90 Hours of calm in this stability class:

17 Hours of missing -wind measurements in this stabil4.ty class:_,..

0 Hours of-missing. stability measuremtnts -in all stability.classes:

,34 Page 35

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Table D.-2 LIMERICK GENERATING STATION -'UNITS 1 & 2 EXELON GENERATION COMPANY, LLC.

Wind Speed,by.Direction Measured at 175 Feet for Various Stability Classes for the Limerick Generating, Station, January -:March, 2Q09 Limerick TowerJ.

Peritoc of-Record: January - March 2009 StabAility, Clas - Extremeqly Unstable

- 171Ft-26Ft Delta-T (F)

-Winds Measursd.at 175 Feet Wind Speed (in mph)

Wind Direction N

NNE NE

' ENE E

ESE SE

.,SSE S.

SSW WSW W

WrNW

'NW

ýVariablo 1-3 4-7 8-12 13-18, 19-24-.: > 24 Total a

0.

0 0

0 0-.,

0 0ý;

0; 0.

0, 0.

0 0,

0Or 0 -

0 0

0 0 k 0

0o, 1

1 4-i 5.

0-0 0,'

3 0

0 1

0' 0.

0' 7

7 6

4 8,

1 3

0-ot 0-0 0<

0-0' 0:

0' o

0o.:,

1.

6r.

4 0

11:

4!

0, 0-0 0

>0

0 0

0 0

0

0 1

6 0

0

-* 0 4

0 0

1 1

0 0

0 9

18 11 9

10 31 5

3 0

Total Hours of calm in this Hours of missing wind 1

21 44 27 2

7 102 stability class:

mcaenrements in thir 0

stability class:

0 all stability classes:

'Hours of misaing stability measurements.in 34 Page 36

SITE:

LIMERICK GENERATING STATION UNITS'1 & 2 LICENSEE:

EXELON GENERATION COMPANY, LLC Table D'-Z, Wind Speed by Direction Measured at 175 Feet~for Various Stability Classes for the Limerick Generating Station, January - March, 2009 Limerick Tower 1 Period of Record: January - March 2009

'Stability Class - Moderately Unstable

- 171Ft-26Ft Delta-T (F)

-:'Winds Measured at 1.75 Feet

-':)Wind Speed (in mph)

Wind Direction '

1-3 N

NNE NE

° ENE E

'SES SSE SSE S

SSW SW WSW W

WNW NW NNW

Variable 0'

0' 0,

0" 0-.

0*

0" 0

0 0

0.;

1' 0

0' 0,

0-4-7.

1 2

0 0

8 0

ox 5

5 1

3 01 8-12 13-18 19-24

> 24 4

2 0

0 1 '

0'*.

0 0

0 0'

0 0

0:

0 0

-0 1 "

0,

0

-":0 0

0 0

0 1

0 0

0 1i 0

0 0

7:

1 2

0 0o 0

0 0

0 1

0

- , 0 3,

1 0

0 10.-

13" 3

2 6

12 4

1 2'

3*

0

'T*'

0 0

Total 7

3 0

1 0

0 1

0 2

18 2

1 10 33 24 8

0 Total "

1 28 36--

33 9,;ý "

3 110 Hours of calm in this stability class:

Hours of missing wind measurements in this 0i iStability class:"

0 Hours ofmissing stability measurements in all:stability classes:

'34 Page 37

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LICENSEE:

Table D-2 LIMERICK GENERATING STATION -UNITS1-I&

2' EXELON GENERATION COMPANY,.LLC a.,

- Wind Speed by Direction Measured at 175 Feet for Various Stability Classes for the Limerick Generating Station, January - March, 2009 Limerick Tower 1 Period of Record:,January - March 2009 Stability-Class - Slightly Unstable 171Ft-26Ft Winds Measured at 175 Feet

.Delta-T (F)

Wind Speed (in mph)

Wind Direction 1 4-7:

8-12 13-18.

19-24

> 24 Total N

1::-

3 12, 11 0

0 17

.NNE NE ENE E

ESE 0

0 0

0 0.

0 0

3 0

11 0

0 1

0...

0 0

0 0 '."

0 0

1,.

1 il 1i:

o-0 4

1 0

2 2

2 1

0' 0

t0 SE SSE S

SSW SW WSW 2.

1 :,

0:

0'.

0 0

0 0.

0 0

0 6'.

5 0

1 0

12 0

4-.

5.

1 0

0 10 0:

1 4

0 0

0 5

5 1:

0, 2

2,,

0 0

W 0

3' 2

1.

WNW 2

0 7

15' 4

10 4

3 7

5 15

'4 31 0

23 0

14 NW 2

1.

2 2,

6-2 3

Variable 0

0 0

-Total 5

29 47 36 18 9

144 Hours of calm in this stability class:

Hours of missYing wind.'.eLfsuremerts in this

'Hours of.missiny stability measuremnents in 0:

stability class:

0 all stability classes:

34 Page 38

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LIMERICK GENERATING' STATION,-'UNITS 1 & 2 LICENSEE:

EXELON GENERATION COMPANY, LLC Table D -22 Wind Speed by Direction Mea'sued at 175 F1et for V arious Stability Classes for the Limerick Generating Sta.ii6i, January - March, 2609 Limerick Tower 1 Period of Record: January - March 2009 Stability Class - Neutral

- l71Ft-26Ft Delta-T (F)

Winds Measured at.175 Feet Wind Speed (in mph)

Wind Direction N

NNE NE ENE En ESE SE SSE S

SW WSW W

WNW NW RNNW Variable 1

4.'

8-12 1. 13-18 6:

6r 13, 7

6 5

4.

3 6;

0 2.

5 5

5.-t 4,.

0.

18, 12 21.

21:

12 7

6 7..

14, 14 12';

6 15" 17.

19 10, 0

24.

11 12' 18 26.

7 5"

22 32' 19.

5' 4

10.

55, 40 45.

0 20 2.

0.

0, 8.

3, 1i 4,

5 5.,

0 2.,

16C 92.

61ý 23:

0 19-24 :

>.i24 2

0 0

'a..

0 o

0 0

0 1

0 4

0.0 o 0 0

0

,1 15 9

50 "16 30 5 5 9

0 0.

i' 0 Total 70 31 46 48 53 23 17 37 55 48 17 15 70 235 160 91 0

Total 86' 211 335 242.`

111

-31 1016 Hours of calm in this stability class:

Hours of missing,:wind measurements in this Hours of missing stability:measurementsin 0:

stability class:

0.-

all stability classes:..

'34 Page 39

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Table D.- 2 LIMERICK GENERATING STATION - UNITS 1 & 2 EXELON GENERATION COMPANY, LLC Wind Speed by Direction Measured at 175 Feet forVariousStability Classes for the Limerick Generating Station, January - March, 2009. --

Limerick Tower 1 Period of Record: January.- March-2009

.Stability Class - Slightly Stable l71Ft-26Ft Delta-T (F)

-Winds Measured,at 175 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18.

19-24

, > 24 Total N

1.

3.'

6 1

0 0

11 4.')

3 '

1

0.

0 0

0 8

9 NE ENE 4

4 6

4' -

1 6

5

0.

0 0

E 2

5 ý'

0 ESE SE SSE S

SSW 3

4, 3

5.

2.

0 0

0 15 13 10 12 33

2.

4 6

20 2

8,

261 1

20.,

24 2

4 8

6 4

6 6

0 0

44 1

0 52 SW 1

16 14 1

0 36

WSW W

0 1 17 4

3 1

31 5

21.

20 4

32 '

52 10 3

4 0

0 55 1

103 0

50 NNW Variable 5

15 1

10' 0'

0 48 170 26 22 0

4 1

0 0

'.1 0 34 0

0 0

.Total 232 52 12 2

516 Hours of calm in this stability class:

1 Hours of missing wind measurements in this-stability class:

0 Hours ef missing stak-ility measurements in all stability.classes:

-34 Page 40

SITE:

LIMERICK GENERATING STATION - UNITS 1 &'2 LICENSEE:

EXELON GENERATION COMPANY, LLC Table D-2:i Wind Speed by Direction Measured at 175 Feet for-Various Stability Classes for.

the Limerick'Generating Station, January - March, 2009 Limerick Tower 1 Period of Record: January - March 2009 Stability Clads - Moderately Stable

- 171Ft-26Ft Delta-T (F)

'Rinds Measured at 175 Feet Wind Speed (in mph)

Wind Direction N

NNE NE ENE SE

!ESE SSE SSE SE SSW SW WSW W

WN

-wmq NW NNW

'Variable Total 1-3.

4-7. -

8-12 0

0 0

1 2.

3 2

2 2

1 5

0 0*

2:

2 1

0 5'

2; 6

6 ;

6 6,

5':

7.

5 7:

5.

0 4

0 0

0 2.

4.

3 2

12 2

0 0.

13-18 19-24

> :24 0

0 0

1 0

'-0 0

0 0

0 2

0 0

1 0

0 0

0.

0

'0 0.

Total 6

3 1

1 6

5 6

10 10 10 11 12 10 20 14 5

0 130 24 71 31.

4 0

,'.0 Hours of calm in Hours of miscing this stability class:

,ý

.0*

-ind measurements in ttis stability class:.

0 Hours of missing stability measurements in all stability-.classes:

34 Page 41

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LIMERICK GENERATING STATION -- UNITS 1 & 2 LICENSEE:

EXELON GENERATION COMPANY, LLC z"

TableD - 2 Wind Spead by Direction Measured at.175 Feet"for, Various Stability Clk.sses for the Limerick Generating Station, January - March, 2009 Limerick Tower 1 Period of Pecord, :Jaz'aary - March 2009 Stability Class - Extremely Stable 171Ft-26Ft Delta-T (F)

.inds Meaznured at 175 Feet Wir.d Speed (in mph)

Wind Direction N

NNE 1 NE ENE E

ESE SE SSW SW SSW WSW

~WSW SW WNW NW

" 414W

'N VariablC 1-3 2

1 2

6 3

2 4

2 2.

1 2-1' 5..

3-21, 4-7. -;

8-12 13-8IS 19-!:24'.

-2" 4

Total 1

0' 0-0 0

3 0

0 0

1 0

0 0

2 3

0 0

9 0

0 0

4 3r 0 C 0

0 0

6 1

0.

0" 0

0 3

3' 0

0 0

0 7

3 0,

0 0

0 5

7 0.-

0 0

0 9

7 4

0 0

13 6

5 0

0 0

13 2'

1' 0

0 0

4 11 0

0' 0

0 12 2

0 0

7

3.

0 0

6 0

0-0 0

0 0

2 Total ;

43 52 '

10 1

0 0

106 Hours of calm in this stability cltisr:

Hours of missing, wind me&surrmentEA.-in this stability class:

0 Hours'of missinq stability measurements iu all stability classes:

34 Page 42

SITE:

LIMERICK GENERATING STATION - UNITS 1 &2 LICENSEE:

EXELON GENERATION COMPANY, LLC Table D -:

Wind Speed by Direction Measured at 30 Feet for Various Stability Classes for the Limerick Generating Station, April-June, 2009' Limerick Tower 1. :.z:

Period of Record: April -

Stability Class - Extremely'Unstable Winds Measured at - 30 June 2009

- 171Ft-26Ft

-Feet

Delta-T (F)

.. Wind Speed (in mph)

Wind Direction 1-j-3 4-7.,'-

8-12 13-18 19-24

,. > 24 Total N

0 0

1.

0 NNE NE 0

1 00 o

o 0

0 0

0 0'

0 EN]Z 0

0 E

0.ý 0

0 0

0 0

1 1

0 0

5 ESE 0 -

0x 0

0:

0 0

SE 0'

0 0

0 SSE' 0

0.

O0 0

S S 0

3 2

0' 0

0 0'

0 0

SSW 0

11 SW 0.:

8..

.WSW 0'

5, W

0 9;

2 13 0

0_

0 0

8 5,

0.

0 0

6 0

0 10 15 WNW 0'

4 3

0 1

0,..

0 8'

NW 0ý 1',

011 Oc 0

0 1

0-0 0.-

0 00 0

0 Variable 0!

of.

0

0.

0..

0 Total 0

42 19 Of 1

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

wind.measurements in-:thi-s stability measurements in 0..

stability. class:..-,

"0 all stability classes:,

144

.Page 43

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Table D - 3 LIMERICK GENERAT!NG STATION -. UNTS 1 & 2 EXELON GENERATION COMPANY,. LLC Wind Speed by Direction Measured at 30 Feet for Various Stability Classes forthe Limerick Generating Station, April -. June, 2009, Limerick Tower 1 Period of flecord:,%April - June 2009 Stability Class - Moderately Unstable

- l7lFt-26Ft Delta-T (F)

Winds Measure. at 30 Feet WihA Speed (in mph)

Wind

',Direct4ion 1-3 4-7 8-12 13-,18 19-,-24;

>,24 Total N

NNE NE ENE 0 1 0,

1.

0 1 0

0 1

0 0

1 1

01 0

2.

0.

0;,

0 0

1 0

1 0"

0 0

E 0

0' 0.

0, 0.

01 0

0 0

ESE SE SSE 0

0 0:,

0

0.

0:

0o 0

0 0

<0 1

3 0

0 0

1 4

6 4

8 9

S 0'

3'

1.

0' 0

0 SSW 0'.

6' 0O 0..

0 0

SW

1.

3 rSW 0,

4 0

4 0:

05

"'1W 0

0 0

0 W

-Wq 2*

41 0

5' 9

2,:

1 0

17 NW o0 1'

2 4

0 0

zVariabl6 Total O.

2 0

0 0'*

0

'0 7

2 0

0 0,;

0 0

3

32.

21 1

<0 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:

144 Page 44

SITE:

LIMERICK GENERATING STATION - UNITS 1 & 2 LICENSEE:

EXELON GENERATION COMPANY, LLC'.

Table D,-'3,.

3 Wind Speed by Direction Measured at 30 Feet for:Various Stability Classes for the Limerick Generating Station, April - June, 2009 Limerick Tower 1 Period of Record:,'April - June 2009 Stability Class - Slightly Unstable Winds Measured at l7lFt-26Ft 30'Feet Delta-T (F)

Wind Speed (in mph)

Wind Direction N

NNE NE 1 1 0

1:.

4-7 8-12 13-18 19ý24.

>,24 Total 4

3, 3

0 0'

0 2

0:

0 0

0 8

3 3

ENE 0

E ESE 0

0 0

2 1

1 4

1.

0 5

0' 1

7 SE 1

0.

0:

3-0, 0'

0 SSE 0

0 0

0 0.'

0 0

0 2

1 4

9 0

0 S

0 6

SSW 1

13 0

0 SW WSW W

WNW

2.

8; i

0.'

0 0

14 0

0 11 0

0 13

3) 6 4

4:

NW 3

1 0

0 0

6 0

0' 1

0 2

3 10 0

13 0

17 7

0 0'

7:,

3' 0

0 17 2

0 0

0 2

0 Variable Total of calm in of missing of-missing 0:

0.&1 0'.

0 12 66 41 4

2

'0 125 Hours Hours

.Hours this stability class:

wind measurements,.in-this stability, measurements in 0

v stability class:-

`,0 all Stability classes:-, 144 Page 45

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Table D.- 3 LIMERICK GENERATING STATION - UNITS 1 & 2',

-4M:

EXELON GENERATION COMPANY, LLC Wind Speed by Direction Measured at 30 Feet.,for Various Stability Classes for the Limerick Generating Station, April - June, 2009 Limerick Tower.: 1 Period of Record: April -, June 2009 Stability Class -

Neutral

Winds Measured at 171Ft-26Ft Delta-Tr (F) 30 Feet Wind Speed (in mph)

Wind Direction.;

1-3 N

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW NW

'Variable, 3

6 14 13 11 2

4 6

9 6

10 12',:

14 10 3

8 0

4-7',

13 16 20 24 48 12 9

12 18 22 11' 15 13 22 31.'

18."

0" 8-12". 13-18 19-,24.

,.:24 7

1 3

8 30 12 0

6.

2.

2 12 26 36 29 0

1 0

0 0*

4' 3

0 0

2 0

0 0'

7 8,

8.,

5 0

0 0

0 0

0

0 0

0 0

0 0 0

0 0

0 0

Total 24 23 37 45 93 29 13 18 35 30 23 29 46 67 78 60 0

Total 131 304 176 38 1

t 0

650 144 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:

Page 46

SITE:

LIMERICK GENERATING STATION - UNITS -1 & 2 LICENSEE:

EXELON GENERATION COMPANY, LLC Table D-3 Wind Speed byDirection Measured 'at 30 Feet for Various Stability Classes for the Limerick Geneeating Station, April - June, 2009 Limerick Tower 1 Period of Record: April-. June 2009 Stability:Class - Slightly Stable Winds Measured at 171Ft-26Ft'Delta-T (F) 30 Feet Wind Speed (in mph)

Wind Direction N

NNE NE ENE SE SE S

SSW SW WSW W

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

> 24 Total 20 12 26 24 26 7.

6 12 II 12 23 23 27 26 20-9:

4 16 12 29 33 36 19 18 23 29 17 12 11 17,:

25,,

23 25 0

4:

0 6

24 J,2, 7.,

5'>

9 0.

3,ý 11:"

17 15 9.

01'.

0 0

0 0:

6.

0 0

0*

0" 0~

3 6

3 0;..

0 0

0.'I 0

0

'0 S 0 "0

0 20

>0 0

0

.0 w0

'0

,0 "o

40 24 56 63 92 33 25 40 49 29 38 36 58 74 59 46 4

Total 288".

345 114 1

19 0

-0 766 Hours of calm in this stability class:

.8

-t Hours of missing wind measurements-in this stability;-class:. _, _ 0 Hours-of missing stability measurements inv:all stability classes:

144 Page 47

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Table.D - 3 LIMERICK GENERATING STATION-UNITS:1 & 2 EXELON GENERATION COMPANY, LLOC Wind Speed by Direction Measured at 30 Feet for. Various Stability Classes for the Limerick Generating Station, April 7.June,:2009 Limerick Tower 1 Period of Records::. April -

June 2009 Stability Class - Moderately Stable Winds Measured -t 171Ft-26Ft Delta-T (F) 30 Feet

%..,-,.Winid Speed (in mph)

Wind Direction 1-3

.. 4-7 N

4 NNE 3

NE 2-.

ENE 8

1E 3

ESE 3

SE 5

SSE 8

S 8

,SSW 11 SW 12:'

WSW 15.

W 26.'

WNW

291, NW 17;,

NNW 8

Variable 5

0-1-

2' 0.1 1

2 0'..'

4 8:

1!:

0.

3C 4,-

0, 33"'

8-12 13-18 19-24

> 24 o

o*

0 0

01 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 4

4 4

8 4

5 5

11 12 19 13 15 29 33 21 8

5 Total 167 0

0' 0

0 200 Hours of calm in this stability class:

12 Hours of missing wind measurements-in this stability class.

.0 Hours of missing stability measnrements.-in all stability classes,:

144 Page 48

SITE:

LIMERICK GENERATING STATION - UNITSI & 2 LICENSEE:

EXELON GENERATION COMPANY, LLC Table Cr,-

3:.r-i Wind Speed by Direction Measured at 30 Feet for Various Stability Classes for the Limerick Generating Station, April -:'.June, 2009..

Limerick Tower 1' Period of Record::'April -

June 2009

'Stability Class - Extremely Stabl-e 1 7"-

l7lFt-2.6Ft Delta-T (F)

'Winds Measured at -30 Feet

.,Wind Speed (in mph)

Wind

-Direction' 1-3 4-7 8-12 13-18.

19-24

> 24 Total

N 5

0 0

0 5

NNE 3'

0 0

0.

0 0

3 NE

7.

0, 0,

0 0

0 7

UENE 4,

0

0.

0 -

0 0

4

E

2.

0

0.

0 0

0 2

ESE 2"

01 0

0 0

'0 2

SE 4,'

0 0

0.

0 0

4 SSE 2-0 0,

0, 0

.0 2

S 3

0o 0:

0' 0

0 3

SSW 2*

0.

0 0.:

0 0

2 SW 6

0' 0!

0 0

0 6

WSW

6.

01-01 0

0

' " 0 6

W 13' 0'

0 0n'f 0

0 13 WNW 22 4,

0 0

26 NW 31' 1

0, 0'

0 0

32 NNW 14 0-0

0.

0

,<0 14 Variable 10 0-00,O 0

'n-0 10 Total 136 5

0".

0 0

0 141 Hours of calm in this stability class%

ý12 Hours of missing wind measurements in this stabilityclass:

0.

Hours of missing stability measurements in all stability.classes:..-144

..Page 49

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Table D - 4 LIMERICK GENERATING STATION-UNITS 1 & 2'.

'C.,".

EXELON GENERATION COMPANY, LLC'.

Wind Speed by Direction Measured at 175,Feet for Various Stability Ciasscs for the Limerick Generating Station, April - JJune, 2009 Limerick Tower I period of Record: April.- June 2009 Stability Class - Extremely Unstable,-

- l7lFt-26Ft Delta-T (F)

Winds.Me.sured at 175 Feet

ý.,Wind Speed (in mph)

Wind Direction N

NNE NE ENE E

ESE SE SSE S

SSW Sw SSW W

WNW NW NNW Variable 1-3 4-7 0

0.:

0 0

0 0":

0 0.,

0, 0.1 0'

0!

0'.

0, 0

O.

0'.

0.

0 0i; 0

0' 0

2-2,:

2*:

1**

1 01 8-12 13-18 19-24",

> 24 0O 1:

0 0

1",

0.'

0 0

01 0'

0 0

0 0,

0

.0 0:

0!

0 0

O.,

,0

'* 0 0,ý 0"

0 0

0" 0::

0 0

1.1.1 0

0 11, 2

0 0

6..

3 ':

0 0

4.

9_

0 0

6' 4

1 0

2.,

1-1 1

0ý

0.

o 0 0

0 0

0.,

0 Total 1

1 0

0 0

0 1

15 9

15 13 6

0 1

0 Total 0

8' 31.

20 2

1 62 Hours of calm in this stability class:.

0 Hours'"of missing winid measurements in this stability class:

0 Hours cf-nissing stability mewasurements,.in allstability classes:

144 Page 50

SITE:

LIMERICK GENERATING STATION.-'UNITS 1 & 2 LICENSEE:

EXELON GENERATION COMPANY, LLC Table DI1z. 4"..,9/'.

.: Wind Speed by Direction Measured at 175 Feet for Various'Stability Classes for the Limerick Generating Station, April - June, 2009 Limerick Tower!,1 Period of Record:April - June 2009 Stability Class - Moderately Unstable

- 171Ft-26Ft Delta-T (F)

Winds Measured at..175 Feet Wind Speed (in mph)

Wind Direction N

NNE NE ENE E

ESE SE SSE S

SSW Sw WSW WNW NW NNW Variable iA3

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

> 24

, Total 0'

0

v 0

0.

01 0'

0, 0':

0" 0

0.

0 0";

0o 0

1 0

2 0'

0 0'

2-1 4

31) 2.

2.

7 0:.

0:

0.

1 0a.

0 0

0 or.*

0-:

4**,

6, 2,

0:

0, 0

0 0

0 W" 0 1/2 2 0

S0 2

2 0

2 1

0 0

0 2

7 5

9 16 14 3

1 0

64 Total :'

1 17 23 13 7

.%3 Hours of calm in this stability class:

0 Hours-of missing'wind miasurements-in this stability~class:.,

0-'*

Hours of missing:stability measurements in.all stability classes:

144 Page 51

SITE:

LIMERICK GENERATING STATION - UNITS-1 &2 LICENSEE:

EXELON GENERATION COMPANY, LLC 7:

[4 Table D.- 4,-

Wind.Speed by Direction Measured at 175 Feet for Various Stability Classes for the Limerick Generating Station, April - June, 2009 Limerick Tower 1 Period of Record: April -

June 2009 Stability Class - Slightly Unstable 171Ft-26Ft: Delta-T (F)

Winds Measured.at :175 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19724 *

> 24 Total N

0 1.

NNE 0

6ý NE 0

0..

ENE 1

0 E

0 0

ESE 0

0 SE 0

1'.

SSE 0

1' S

0 3r SSW

0.

3 SW 0

7 WSW 0

4.

W

0.

3" WNW 2'

4 NW 0

1i.

NNW 1

0 Variableý 0

0 2

1 1.2 7,

0-*

01 2

2, 9.

7.

4 3

7 8."

1.

0, 3

0 '

0-0 0

0i 0

22 5

6 6

0 0'

0 "

.0 0

0 0

-~0

0

'0 0

0 0

0 S 0 2

0 0

"0 6

6 1

2 7

1 1

3 7

13 15 13 14 23 11 2

0 Total 4

34 54 25 6

2 125 Hours of calm in this stability class:

0 Hours of missing wind measurements in this stability class:

0 Hours of missing stability.measuraments in all stability classes:

144 Page 52

SITE:

LIMERICK GENERATING STATION -- UNITS 1 & 2 LICENSEE:

EXELON GENERATION COMPANY, LLC- -.

Table D-Y.,--.*

Wind Speed-by Direction Measured at 175 Feet for Various Stability Classes for the Limerick Generating Station, April - June, 2009 Limerick Tower 1 Period of Record: April - June 2009 Stability-Class - Neutral

- 171Ft-26Ft Delta-T (F)

Winds Measured a,--- 175 Feet Wind Speed (in mph)

Wind Direction 1-3

7. 4-7 8 13-18 19-24."

>' 24 N

NNE NE ENE E

" ESE SE SSE S

SSW SW WSW W

WNW NW NNW Variable 2

5-6-"

5 8.'

1 2

4'"

2 4

3 7

5 5

3-0 0

6 13 21 16 30 12 5

9 8

10 7

9 11 17 4

12.

0 14 4

11 7

31 19 7

7 10 17 7

9 13 23 25 22 0

9 1

0 2

17 13 0

0 -

4 10 7.

5 13 14 13 19 0'

1 0

0 0

0 3

0 0

2 0

0 2

6 16 5'

0 0-*

0 0

0

0

-0 0

0 0

0 6

4 0

0

"

0 Total 32 23 38 30 86 48 14 20 26 41 24 32 54 79 50 53 0

Total 62 190 226 "

127:

35

..10 650 Hours of calm in this stability class:

Hours of missing'wind measurements in this.

Hours,of missing stability mea'surements-in 0:

stability.

tclass:

0 all'stability classes:

144 Page 53

SITE:

LIMERICK GENERATING STATION -- UNITS 1 & 2

-",-.t-,.

LICENSEE:

EXELON GENERATION COMPANY, LLC.

Table D -4 Wind Speed by Direction Measured at 175 Feet for Various Stability Classes for the Limerick Generating Station, April - June, 2009 Limerick Tower 1.

Period of Racord: A;ril.. June 2009 Stability Class - Slightly Stable

- 171Ft;-26F. t Delta-T (F)

Winds X*easured a:t 175 Feet IWind

,Speed (in mph)

Wind Direction-,

1-3, : 4-7 8-12'-

13-18 19-'24.1-

> 24 Total N

8 6

25

3.

0 0

42 NNE 8

11.

9

0.

0 0

28 NE 12 20 14' 0

0 0

46

'ENE 12 38 17 1;

0 0

68 E

8 25' 34 11:"

4 0

82 ESE 5

20 21 14 0

0 60

SE 3-6' 14.-

3"'

0 0

26 SSE

4.

8' 23 2

0 0

37

.S 4

15'

25.

9 0

0 53 SSW 2

12 15 9.:

0 0

38 SW

3.

17 23 4

0 0

47 WSW 3-13:

9 2

3 0

30 W

8 13 21 10 4

3 59 1WNW 2

21 24:

19,ý 9

1 76 9-NW 4-,

9 16' ;

4 0

'0 33 0 NNW 3

14 192-

10.

3 0

49 Variable:,

01 0"

0 0;

0 0

0 Total 89' 248' 309 101 23 4

774 Hours of calm in this stability class:

0 Hours of missing wind..measurements in this'.:stsbility class:

0

Hours of missing stability measurements -in all stability classes:

144

.1Page 54

SITE:

LIMERICK GENERATING STATION -UNITS 1 & 2 LICENSEE:

EXELON GENERATION COMPANY,LLC Table D:- 4. :

Wind Speed by Direction Measured at 1:75,Feet for Various Stability Classes for the Limerick Generating Station, April 'June, 2009 Limerick Tower 1`'

Period of', Record: "April - June 2009 Stability Class - Moderately Stable

- 171Ft'-26Ft Delta-T (F)

Winds Measured rat 175 Feet Wind. Speed (in mph)

Wind Direction N

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW NW NNW Variable l-3 4-7.

8-12 -: 13-18 4.

2" 2

3 0--

3 3'

1 1

3*

i' 1

3" 3X 3:1 1i 2

0' 3'

2 '

2 0

3"'

7 10' 16, 10, 14 19.

12 -;

6'.

0:,

0 0:

2 0'?

0 0

1 /

10' 12.

4.'

4 12 10:_

2 P 0 (

0 1 1 0

0 0

1' 0

0 0

4 ~

0~

0, 0

0' 19-24

> 24 0

0 0

0 00 0

' 0 0

30 0

'0 0

0 0

'0 0

0 0

O0 0

0 0 ;

0 Total 6

3 7

5 2

6 5

6 9

25 32 16 19 34 25 11 1

Total

39.

108 57 ".

8 0

.:, 0 212 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 stabilityclasses:.

144 Page 55

SITE:

LIMERICK GENERATING STATION UNITSI& 2 LICENSEE:

EXELON GENERATION COMPANY, LLC Table D -.4 Wind Speed by Direction Measured at 175 Feet for Various Stability Classes for..

the Limerick Generating Station, April - June, 2009 Limerick Tower 1 Period':of Record: April,- June 2009 StabilityClass - Extremely.Stabl

-..... 171Ft-26Ft Delta-T (F)

WindsN!Neasu.ed at 175 Feet Wind Speed (in mph)

Wind Direction N

NNE NE ENE E

ESE SE SSE S

SSW SW WSW NW WNW NW SNNW

%.'Variable 1-3 4-7 8-12

, 13-18 19-24

>24 Total 0

2 1

0 5

1 1.

0.

1-3 2

5 4-4 5"

1 3

1-2 3

1 1-2 0:

4;.

11' 6

6 14" 22 12-2 0'

0 0

0 0i 2

01 0,

0 0

0 4

0 1

12.

6 0

0 o

o 0,

o0 0ý 0

0 0

0ý 0

01o 0

0 0

0, 0

0o 0

0-0 0

0 0*

0 0

0 2

0 0

0

0.

0 01 0

0 0

0 3/4 0

0 0

0 3

3 3

3 8

2 3

0 5

14 12 11 19 40 23 3

1 I--

Total 36 90 25 2

0 0

153 Hours of calm in this stability class:

0 Hours of missing wind measurements in this stability class:

0 Hours of missing stability-measur.aments in'all stability classes:

144

. Page 56

SITE:

LliMERICK GENERATING'STATION,--UNITS1 &2 LICENSEE:

EXELON GENERATION COMPANY, LLC Table D - 5.,

Wind Speed by Direction Measured at 30 Feet for Various Stability Classesfor the Limerick Generating-Station, July - September, 2009 Limerick Tower 1 Period of-Record: July - September 2009 Stability Class Extremely Unstable

- 171Ft-26Ft Delta-T (F)

Winds Measured at".30 Feet Wind Speed (in mph)

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

> 24 Total N

-:I-,

10, 3

0 0

0 14

-NNE 0.:

17' 2

0.

0 0

19 NE

1.

23.'

1 0

0 0'0 25 ENE 2,

14 3

0 0

0 19 E

3',

3 0"

0.J 0

0 6

ESE 3

2-:"

2 0

0 0

7 SE

2.

2 0;

0-0 0

4 SSE 0

2-0 0'

0 0

2 S

3 9:

2

0.

0 0

14

.SSW 7

18" 1-0i 0

0 26 SW 6

19' 1

0'.

0 0

26 WSW 8

15' 2-0.,,

0 0

25 W

7 37..

2-`

01 0

0 46 WNW 3'

25 5

0.:

0 0

33 NW 1

18'

9.

0 0

0 28 NNW 1

5

0.

0 0 '.-'o0 6

Variable 1

0 0

0 1

Total 49 219 33 0

0 0

301 Hours of calm in this stability class,:

0 Hours of missing wind measurements in this stability class:

9 Hours of missing stability measurements in all stability classes:

14 Page 57

SITE:

LICENSEE:

Table D -- 5.

LIMERICK GENERATING STATION~- UNITS 1 & 2 EXELON GENERATION COMPANY, LLC Wind Speed by Direction Measured at 30 Feet for Variois. Stability Classes for the Limerick Generating Station, July - September, 2009. -..

Limerick Tower 1

,Period cf Record: July -

September 2009 Stability Class'- Moderately Unstable.

171Ft-25Ft Winds Measured at 30 Feet Delta-T (F)

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

>. 24 N

NNE NE ENE E

.ESE SE SSE

SSE Sw WSW SW WNW NW NNW

,Variable" 2

0 1

0.

0 1.

0 1 :

0 2

5 6

1 2

3 0'

2 2.

7.

2 12 1 '

02 2

0.

14*

14..

2 0

01.

0 4

0 0

0',

0.

1' 0

1:

5 9

0 0

0 0.'

0.

0:

0 0

0~

0.

0 0

0

<0 0

0 0

0

.0 0

'0 0

0 0

i** 0

0 4

2 12 4

2 1

4 1

4 6

9 20 25 5

0

, Total 24 55 22 1

0 0

102 Hours of calm in this stability class:

Hours of missing.wind measurements in this stability class:,

Hours cftmissing stability measurements in all stability classes:

14

- Page 58

SITE:

LICENSEE:

Table D' E-LIMERICK GENERATING STATION ý-UNITS 1 & 2 EXELON GENERATION COMPANY, LLC Wind Speed by Direction Measured at 30 Feet for Various Stability Classes for the Limerick Generating Station, July - September, 2009.

Limerick Tower 1 Period of Record: July.- Septembe Stability Class -

Slightly Unstable 171 Winds Measured at 30..Feet Wind Speed (in mph) r 2009 Ft-26Ft! Delta-T (F) 19-24

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

NE ENE E

ESE SE

..SSE S

SSW SW WSW W

WNqW NW NNiW Variable 2

1 '

1,0.

1 "%

2 1

0" 3

4 7.

3, 2

1.

0 3

7, 6

7 1

0 0

1 2

5.,

5 8

3 7

14 0:

0 0

0 0.

2:

0' 0'

0:

1 0

0 0.

1 17 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

00 0

5 8

7 7

4 1

2 5

3 6

8 12 10 11 33 2

0 Total 33 69 22 0

0 0

124 Hours of calm in this stability class:

0 Hours of missing wind measurements in this stability class:

'6 Hours of missing stability measurements-in all,,stability, classes:

14 Page 59

SITE:

LICENSEE:

Table D-- 5,-

LIMERICK GENERATING STATION - UNITS1 & 2 T-.n EXELON GENERATION COMPANY, LLC Wind Speed by Direction Measure', at 30 Feet foroVarious Stability Classes for the Limerick Generating Station, July.. September, 2009 Limerick Tower. 1*

Pcar.od-of RecordI: July - September 2009 Stability Class - Neutral',

-171Ft-26Ft Delta-T (F)

Winds yeasuripf. at 30 Feet

,,:Wind',Speed (in mph)

Wind

'Directioton:.,

1-3.,- 4-7_

Total 8-12 13-1.8:

19~-!24*

> 24 N

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW NVW variable 13' 12:

10 7

8 2,,"

7 7..

4 13..

16 11i.

12.,

18, 18i" 0',

18 19 17 36:

24 7

0.1 2,3 5 "i 13 7.

7 12 19 35 6

0 2

12' 1.]

3 4 '?3.

0;:,

0 0..

0-0 3

5 18i 0o 0

52 0

2-0--.

0 :.

0'.

0..:"

0:.

0 0,

0.

0 0

0; 0

0 10 0

0 0

70 0

0 0

.0 0

0 0

0

Z." 0 33 45 28 46 36 9

2 9

15 18 20 23 26 36 72 24 0

.* Total 160 227 3

0 0

442 11 Hours of calm in this stability ciasst i0 7 Hours of missirgiwind measuroimenta ini this stability class.

Hours of.missing'stability measurements in all stability classes:

14 Page 60

SITE:

LIMERICK GENERATING STATION - UNITS 1 '& 2 LICENSEE:

EXELON GENERATION COMPANY, LLC Table D -"5 -

Wind Speed by Direction Measured at 30.Feetfor Various Stability Classes'for the Limerick Generating Station, July - September, 2009 Limerick Tower 1 Period of' Record: July'.-

Stability Class - Slightly Stable:

Winds.Heasured at

'Wind Speed Wind September 2009 171Ft-26Ft 30 Feet (in mph)

.Delta-T (F)

S.Direction--

Total N

NNE NX ENE E

ESE SE SSE S

SSW SW WSW W

WNW NW NNW variable 1-3.

4-7 ý '

8 13 19-24. -,., > 24 21 26 33 24 15 7

7/ý 9':

9 17":

18 30' 46 60" 34 34 2

6 19 10 14 16 5

3 191" 29 134 62.

241" 37 18.

8 0"

0.

2 2

41 0'~

0' 0*

0' 0'

0~

5.'-

0 0

o 0'

0.

0 0'/

07' 0:;.

02.

O' 0;

0 0

0 0

0 0

S 0

.0 27 46 45 40 35 12 10 28 38 30 20 37 71 97 57 43 2

638 Total.-

392 229 17 0

O' 0

1., 0 Hours of calm in this stability class:

9' Hours of missing wind measurements in this stal Hours of missing stability measurements in all bility class:-

':33 stability classes:

.14 Page 61

SITE:

LICENSEE:

Table D-5.

LIMERICK GENERATING STATION -- UNITSI 1 & 2 rv,.

7, EXELON GENERATION COMPANY, LLC Wind Speed byDirection Measured at 30 Feet for Various Stability Classes for the Limerick Generating Station, July - September, 2009 Limerick Tower 1

.Period of Record: July -.Septembe St&bility Class -

Moderately Stable

-. 171 Winds Measured-at.

30.Feet Wind,. Speed (in mph) r 2009 Ft-26Ft Delta-T (F)

Wind DirectiOnýý Total 13 4-7 8-12-- 13-18 ý 19-24

> 24 N

NNE NE ENE E

ESE SE SSE S

SSW SW WSW

.W WNW

-Variable

,c Total 8

6 6

7 3

4 3

3 41 9

14 20 44 63 43 20 5

1 1

0*

1 1

01' 0-4 2

0' 0';

2 3

3.,

0 0

0-ý 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 9

7 6

8 3

5 3

3 8

11 14 20 46 66 46 21 5

262 19 0

0 0

0 281 Hours of calm in this stability class:

14 Hours of missirg wind measurements in this stability class:

25 Hours of missing stability measurements in all stability classes:

14

.Page 62

SITE:

LIMERICK GENERATING STATION - UNITS 1 & 2 LICENSEE:

EXELON GENERATION COMPANY, LLC' Table D -,5

" Wind Speed by Direction Measured at 30 Feet for Various Stability Classes for-the Limerick Generating.Station, July - September, 2009.

Limerick Tower 1 Period of Record: July.-. September 2009 Stability Class - Extremely Stable.,

- 171Ft-26Ft.Delta-T (F)

Winds.Measured at,!30-Feet Wind,.Speed (in mph)

Wind Directicn 1-;3-4-7'7 8-12 13-18:. 19,24

> 24 Total N

16 0

0 0'

0 0

16 NNE 4

01 0.:

0 0

0 4

NE 4

0 0

0 4

ENE 5"

0 0.-

0 0

0 5

E 1

0 0

0 1

"ESE 2

0 0"

0",

0 0

2 SE 0

0 0o 0

0 0

0 SSE 1

0.

0 0'

0 0

1 S

1 0

0

0.

0 0

1 SSW 4:

0' 01 0

0 0

4 SW 8

0 0

O1 0

0 8

WSW 4

0.

0 0'.

0 0

4 W

16 1

0.

0 0

0 17 WNW 33 1

0' 0

0

'.0 34 NW

29.

0 0

0 29 NNW 34 0

0 0"

0

.0 34 Variable 4

0 0

0:'

0'.,:

,,0 4

Total 166 2

0 0

168 Hours of calm in this stability class:

24 Hours of missing wind measurements in this stability class:

" 3 Hours of missing stability measurements in all

stability classes:

14 Page 63

SITE:

LIMERICK GENERATING STATION - UNITS 1 & 2 "

LICENSEE:

EXELON GENERATION COMPANY, LLC.

Table D-6 Wind Speed by2Direction Measured at 175 Feet for-Various Stability Classes for the Limerick Generating Station, July - September, 2009.

Limerick Tower 1-Period of Record: July -

September 2009 Stability Class - Extremely Unstable,'

- 17lFt-26Ft.Delta-T (F)

-Winds Measured'at 175 Feet 1...

Wind Speed (in mph)

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

>.24 Total N

NNE

NE ENE E

E ESE SE

.SSE

'S SSW SW WSW W

NW Variable Total of calm in of missing of missing 5

101 19<

9.

3 1

1 3

3, 6

8 11.

15 10 4.

0 5,

12 7.

7-1 6

1 0

1 2

16ý 8;.,

9 29 12 12.

2ý 0

0 0

0 0O 0,

3 1;

13 1

2..

12' 1

0 0.

0.:

21, 0

0 0

0 10 0

0 0

0

0 0

10 22 27 17 9

2 6

6 11 24 20 25 58 26 17 4

0

20.

109 129 5.

0 284 Hours Hours Hours this stability class:

windmeasurements in this stability measurements in 0

stability class:..26 all stability classes:

14 Page 64

SITE:

LICENSEE:

Table D.',-,6 LIMERICK GENERATING STATION -- UNITS 1 & 2:

EXELON GENERATION COMPANY, LLC Wind Speed by Direction Measured at 175 Feet for Various Stability Classes for the Limerick Generating Station, July - September, 2009..

Limerick Tower 1' Period of Record: July-- SeptemLer 2009 Stability Class - Moderately Unstable l7lFt-26Ft Winds.:Measured at 175 Feet Delta-T (F)

WindSpeed (in mph)

Wind Direction' Total N

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

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

> 24 0

0 01' 01 10.

0 0.

0 0

0 2

4 2

11 0

3, 4.ý 6

1I 0

1 0,

3 0.

0 3

4 7

7" 2:

0 0

0 ;;

3 3

1.

0 1.--

0 0

1 3:

5 8:-

12 2

0 0'

0 0

0' 0..

0 2-1!

0 0~

4 2..

0 0

1 0

0 0

0 0-0 0

0

.0 0

0 0

.0 0

0

'0 1

3 7

9 3

0 2

0 5

3 3

5 15 21 21 5

0 Total 9,

42 40 9r 3

0 0.-

stability class:

. 3 all stability classes:

Hours of calm in this stability class:

Hours of missing wind measurements in this Hours of missing stability measurements in 103

-14 Page 65

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LICENSEE:

Table D-.6 LIMERICK GENERATING STATION - UNITS 1 & 2

-l'.

EXELON GENERATION COMPANY,. LLC' Wind. Speed by Direction Measured at 175 Feet for Various Stability Classes for the Limerick Generating Station, Juiy;-September, 2009: -..

Limerick Tower, 1i.

Period of Record: July -

September 2009 Sta.bility Class - Slightly Unstable 171Ftý-26Ft Delta-T (F)

'. ý- Winds Measured at.175 Feet Wind

.Directiont 1-3.

MWind Speed (in mph) 4-7,

8-12 13-18 19-2.4.

>. 24 Total N

NNE NE ENE E

ESE SE SSE S

SSW i°, SW

WSW SWNW

~NW NNW

.Variable 0

1 0 0

0 1

3' 0

2' 0 :;

32, 0

0" 0

3 5.

5 5,

3 0

0-1 4

3 1.

5 3,

3' 6.

1*

0 0

1 5.-,

0 2

0 0

4 5

6 4

9 14 1."

0 0

0*

0~

0 0.-

1 0.

0 0'

2 0

0.

2.

1 '

0

". 0 to 0

0 0

.0 0

0 0

0 3

7 10 5

6 2

3 2

4 11 6

13 11 18 22 3

0 Total 15 7 49%;'

51 11 0

0 126 Hours of calm in this stability class:

Hours of missing-windmeasurements in this Hours of missing stability measurements in stability class:

4 all stability classes:

14 Page 66

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LIMERICK GENERATING STATION - UNITS.1 & 2:

LICENSEE:

EXELON GENERATION COMPANY, LLC Table D Wind Speed by Direction Measured at 175,Feet forVai'ious Stability Classes for the Limerick Generating Station; July_ September, 2009.

Limerick Tower 1 Period of Record: July'- September. 2009

'Stability. Class - Neutral 171Ft-26Ft,Delta-T (F)

Winds 'Measured !t

.t175: Feet

)

I Wind Speed (in mph)

Wind Direction Total 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 8

5' 7

5 -

4:

0 6,

2 5'

11 6

3 8

0 9i 12.

18?.

26:

11 5.

1!

41; 6*

5!

15 5

91" 13 11 11.

0, 6

14 6'

17 21' 9

4; 5

10 2

7 7

16 20:

10 0`

0'*

9 5

0 1:"

3 0

0:

0.-:

0'"

6 1 0..

2-.

6 10-,

7" 0.

01.

0 0

,.0 0

0 0

23 40 38 50 38 18 9

5 12 28 19 20 34 45 41 20 0

Total,

79 161 146 "_

49 5

. 0 440 Hours of calm in this stability class:

-0 Hours of missing wind measuremexits in~this.stability.-.clas&:

-.13-'

Hours of missing stability measurements in-all stability.classes:

14 Page 67

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LIMERICK GENERATING STATION - UNITS 1 & 2 "

LICENSEE:

EXELON GENERATION COMPANY, LLC Table D - 6

-Wind Speed by Direction Measured at 175 Feet for Various Stability Classes for the Limerick Generating Station, July - September, 2009 Limerick Tower 1

.,.'Period of Record: July -

September 2009

-Stability Class - Slightly' Stable 171Ft-26Ft Delta-T (F)

Winds Measured at 175 Feet Wind Direction- '

1-.3 Total Wind Speed (in mph) 4-7'.

8-12 13-18 19-24-.

> 24 N

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW VarilNNW Variable 14 10 12 8

6 5

8 4 i 1

2 0

3 6

5 8

5 0 "

17 18 18 18 13 3

5 14:

18 11 15 12 11 46 30 16 0

9 1

9 4

15%.

2 9'

0 17 4

8 2

6 0

6 0"

40 3

19<

2 10 0

14 0"

36 6

45 4

22 0

4 0-0 0

0 0

0

- 0 0

0 0

0 41 41 47 35 40 18 19 24 62 34 25 29 59 100 60 25 0

Total 97' 265 269 28 0

0 659 Hours of calm in this stability class:

Hours of missing wind measurements in this stability class:

20 Hours of missing stability measurements in all stability classes:

14 Page 68

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LIMERICK GENERATING STATION - UNITS 1 &2.

LICENSEE:

EXELON GENERATION COMPANY, LLC Table D.-6, Wind Speed by Direction Measured at 175 Feet for.Various Stability Classes for the Limerick Generating Station,, July - September; 2009 Limerick Tcwer 1-Period of,: Record: -July:- September 2009

,Stability Class - Moderately. Stable -

171-Ft-2§6Ft Delta-T (F)

Winds Measured at 175. Feet

-Wind Speed (in mph)

Wind Direction.

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

"'24 Total N

2 5ý 3

0 0

0 10 NNE 0

,2 0

0 0

2 NE 2

3;,

0 0

5 ENE 5

4 0

0 0

0 9

E 01 2

1 0

0 0

3 ESE 2

1-0 0

0 S

0 3

SE 3

1' 0

0 0

0 4

.,SSE 2,

2 2

0 0

0 6

S 11 3

5 *i, 0.'

0 0

9

.SSW 4

2 4

1 0

0 11 SW 4

13 3-0 0

0 20 WSW 2

15 4

1 0

0 22 W

4 21 3

0 0

0 28 WNW 7

52 30 0

0 0

89 NW 11 29 3

0.

0

0 43 NNW 10 13 4

0 0

0 27 Variable 0

0 0

0

0.

.0 0

Total

59.

168 62 2

0

.20 291 Hours of calm in this stability class:

i-.

Hours of missing wind measurements in this stability-class:.

28.

Hours of missing stability measurements in all stability classes-:

14 Page 69

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LICENSEE:

Table D,-,6 LIMERICK GENERATING STATION -- UNITS 1 & 21.

EXELON GENERATION COMPANY, LLC

'7.,

Wind Speed by Direction Measured at, 175 Feet for.Various Stability Classes for the Limerick Generating Station, July - September, 2009--

Limerick Tower 1 Period of Record: July - September' 2009

,Stability Class - Extremely Stable 171Ft-26Ft Delta-T (F)

-,.Winds. Measured nt 175 Feet Wind :Speed (in mph)

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

NNE NE ENE E

ESE SE

~SSE SSW SW WSW W

WNqW NW NNW Variable 3.

0 2.

1 4'

3 2-0' 0'

2; 3

3' 6

10 6

1 0

3 2

3 3

0':

0 0.",

3' 4

4!'

8" 14 `

24.

9, 0

1 0';

1:,

0 0'

2 0.:-

0oi 0:"

2.

2,',

1 1.

7 1.

0 0

0o.

0" 0

0':

0 0

0, 0

0 0

0

'0

'0 0

.0 0

0 "0

0 0

0 7

2 6

4 4

5 3

0 3

8 9

12 21 45 37 11 0

Total 46 102 29 0

0 0

177

. j..

'Hours of calwn in this stability clasn:

0 Hours of missing wind measurements in this stability class:

18 Hours of missing stability measurements in all stability classes:

14 Page 70

SITE:

LIMERICK GENERATING STATION - UNITS 1 & 2 LICENSEE:

EXELON GENERATION COMPANY, LLC Table D - 7.-),

Wind SFoeed by Direction Measured at. 30 Feet for Various Stability Classes for the Limerick Generating Station, October - December, 2009 Limerick Tower 1.

Period of Record: October -December2009 Stability-Class - Extremely Unstable

- l7'Ft-26Ft.;Delta-T (F)

Winds Measured'at 30 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."

4-7 8-12 13-18.

19-24

> 24 1

2 1'

3 2

0 2

1~

0 1.

1 5

6 3

2 1

0 0

2 2

4!

0' 1'

1 6

8 1

4 9

15 4

1 0

0 0

0 1

12 2

0' 0

0 1

0 0'*,

3';

10'-

10 "14" 0,'

0" 0

0.

0-0 1

0 0

0' 0

21 2'

3 0

0 0

0 a

0 0

<0 0

0 0

0

.0 0

0 0

10 0

0

~0 Total 1

4 2

6 8

2 3

2 6

10 2

9 20 30 19 2

0 Total 31 59 28 8

0 0

126 Hours of calm in this stability class:

0 Hours of missing wind measurements in this stability class:

4 Hours of missing stability measurements in.all stability classes:

11 Page 71

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LIMERICK GENERATING STATION -- UN!TS 1 & 2.-'

LICENSEE:

EXELON GENERATION COMPANY, LLC Table D -. 7 Wind Speed by Direction Measured at 30 Feet for Various Stability Classes for the Limerick.Generating Station, October - December,.2009 :,.':"

Limerick Tower 1 S.Percid of Record: October.-

Decnber2009

..StabiUity Class - Moderete.ly:Unutab.71e 171Ft-2,GFt Dolta-T (F)

Winds meac*red-at

,-30 VFeet L,:*, Wind Speed (in mph)

Wind Direction 1-3 1 "4-7' 8-12 13-3.8 19-:74 24 Total NN NNE

,*NE ENE "E

ESE SE SSE S

SW WSW W

WNW NW VNariable 0

0 0.

i:,.

0, 0.

0 01' 0

01.

2 1".

0 0'

1 2

0.

0; 0..

3."

3 0..

3 A" 6ý;

3 1

0O 1

0 0

0 1'

07 0

0':

0 0

0 0'

3 11 5-2 0.

1.

0:

1-0' 0

0 0,;

0ýý 0;

0.

4 7T 2

0 0-0 0

0 0

0 0

'0 0

0 0

'0

'0 0

0 K..

0

-0 0

2 1

3 0

0 1

3 4

0 0

10 24 15 4

0 Total 5

24" 23 15' 3

0 70 Hours of calm in this Hours.of misEing-wirhd stability class:

n~eaw-srements in this 0>.

stability class:

1.

all stability classes:-

'Hours. f missing stability measureraezts in 11 Page 72

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LICENSEE:

Table D.-7..',

LIMERICK GENERATING STATION - UNITS 1 & 2 EXELON GENERATION COMPANY,'LLC

'ý Wind. Speed by Direction Measured at 30. Feet for Various Stability Classes for the Limerick Generating Station, October - December, 2009 Limerick Tower 1

.Period of Record:.October - Deceaber2009 Stability Class - Slightly Unstable.'-

- 171Ft-26Ft'Delta-T (F)

Winds Measured at' 30 Feet Wind

.Directilon-.

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

> 24 Total N

NNE 2

1 3

1:r1 1

1'-

0.

0 2'

01 0

0 0

7 2

6 NE 4

0 0

ENE ESE 1

5 5'

0 2;

3!

i' 0

0 0

11 0

0 1

2 0

0 SE Oý.

0"I o0:

0 0

0 6

3 0

1 5

2 SSE 10 01 V

0 0

S 1

2.

2,:

0.

0 0

SSW SW WSW 0:

1i, 20, 00!

0 0 0

0 1-0K.

0 0

0 1

1:,

0 0

0 3

W 3

10.

4 0'

0

'0 9

2'--

0 0

1 7:':

17 19 24 NW NNW Variable 1-3 10:-

9-1 0

0 0

4 1ý 0,

0 0

5 0

0'

0.

0 1

'0 1

0 Total 20--

45.

34:

12' 112 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 classes:,

11 Page 73

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LIMERICK GENERATING STATION - UNITS.1 & 2 LICENSEE:

EXELON GENERATION COMPANY, 'LC Table D - 7 Wind Speed by Direction Measured at 30 Feet for Various Stability Classes for the Limerick Generating Station, October - December; 2009

,Stability Limerick Tower*-1 Period of Record: October - December2009 Class -1Neutral l7Ft-26Ft

,., Winds Measured-at 30 Feet Delta-T (F)

Wind Direction N

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW NW NNWV a

variable S,-Wind Speed (in mph) 1-3 4-7 8-12 -. 13-18 19-2.4 pt.> 24 Total 7

13 12 18 6

9 4

7 4

6' 4.

10 16 16 9

13 0

35 52 39 46 16 4

6 17 13,

9 7

3' 28 39 21 21 0

6 33 29" 17 1 33',

2*

0 1

6 5.

0 4

23 48 63 11 0

0 0,:

2..

3 0'

0 0'

0-0~

0 0-5, 21..

27 1

0 0

'0 0

0 0

'0

'0 48 98 82 82 58 15 10 25 23 20 11 17 72 124 123 46 0

Total Hours of calm in Hours of missing 154 356 281 60 3

0 854 this stability class:

6 wind measurements in this stability class:

13 Hours of missing-stability measurements in all stability classes:'

11 Page 74

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LIMERICK GENERATING STATION -UIJNITS 1 & 2 LICENSEE:

EXELON GENERATION COMPANY, LLC" Table D-Wind Speed by Direction Measured at 30 Feet for Various Stability Classes for the Limerick Generating Station,. October -.December;,2009 Limerick Tower 1 Period-of Record: October-

'December2009 Stability Class - Slightly Stable

- 171Ft-26Ft. Delta-T (F)

" 'Winds Measured at 30 Feet Wind Speed (in mph)

Wind

.'Direction 1-3 4-7.

8-12 13-18 19-24

> 24 Total N

13 14 0i, 0

0 0

27 NNE 11

9.

4

0.

0 0

24 NE 11 15is 3-0 0

0 29 ENE 15 15 "

5 0

0 0

35 E

8 6:

5 c 0

0 0

19 ESE 8-'.

6 5

1 0

0 20 SE

5.

8.

2c 0

0 0

15 SSE 2

17 4'

0 0

0 23 S

4 18 1

01 0

0 23 SSW hii 8

1 0",,

0 0

20 SW 12 7

0 1,

0 0

20

.WSW 221 10

2.

0 0

0 34 W

38 34

10.

0 0

0 82 WNW 21, 61:tý 21,ý-

0 0

0 103 NW 16 22 15.

0 0

v.

0 53 NNW 13 12 11'

0.

0 0

26 Variable 2,

0' O

0' 0

0 2

Total 212',:

262 79*

2 0

.. 0 555 Hours of calm in this stability class:

.8 J.

Hours of missing wind measurements in this stability class:

17, Hours of missing stability measurements"in all.stabi'lity 'classes:

11 Page 75

SITE:

LIMERICK GENERATING STATION -. UNITS 1 & 2 LICENSEE:

EXELON GENERATION COMPANY, LLC.

Table D -. 7.-!_

Wind Speed by Direction Measured at 30 Feet for Various Stability Classes for the Limerick.GeneratingStation, October - December, 2009 Limerick Tower

.,.Period of Record: October - December2009 Stability Class - Moderately Stable:

- 171Ft-26Ft Delta-T (F)

'Winds Measurae,:Cat % 30 Feet Wind.Speed (in mph)

Wind Direction N

NNE NE ENE E

E ESE SE SSE S

SSW SW WSW W

WNW

,!NW

,Variable 1-3 4-7 8-12 13-18.

19-24:.,

> 24 Total 8

6 6

4 4

3 2

3 8

10 6

17 35 23 17 7

1 0

3 1

4 4

0.

1 0

1 2

0 2

12 3

0 0

0 0'

0 0

0.

0 0

0-0 0

0$

0 0;

0 0*

0' or 0

0 0

0

0 o0 0

0 0

-0

'0

'0 0

0 0

0

0 8

9 7

8 8

3 3

3 9

12 7

17 37 35 20 7

1

.0.:,

.. Total 160 34 0

0 0

194 Hours of calm in this stability class:

Hours of missing-wind measurements in this 5

stability, class-:-

4 Hours of missing stability measurements in all stability classes:

11 Page 76

SITE:

LIMERICK GENERATING STATION -- UNITS 1 & 2' LICENSEE:

EXELON GENERATION COMPANY, LLC Table D -

ý7.:,

Wind Speed by Direction Measured at 30 Feet for Various Stability Classes for the Limerick GeneratingStation, October-December; 2009 Limerick Tower 1 Period of Record: October, -

December2009 Stability.-Class - Extremely Stable 171Ftt-26Ft Delta-T (F)

Winds :Measured at.30,Feet

.4 Wind Speed (in mph)

Wind Direction.'

1-:3 N

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW WNW NNW Variable Total 11 9,:'

8 2:

3.,

2 0:

12 2,

5, 12, 39.

46 21 17 2

181 4-7 0

0 0'

01 1.!

0 0'

0 0

0 1

0 0

3 8-12 13-18 19-24t-"

>,24 Total 0

01" 0

0 0

0..

0 02 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 9

8 2

4 2

0 1

1 2

5 12 40 46 22 17 2

184 0

0 0

z 0

Hours of calm in this stability class:

31 Hours of missing wind measurements in, this stabilitytclass::.

12 Hours of missing.stability measurements-in-all stability classes:

11 Page 77

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LICENSEE:

Table D-B.-

LIMERICK GENERATING STATICN -. UNITS 1.& 2 EXELON GENERATION COMPANY, LLC"

".:j"!Ij A

.~J -

Wind Speed by Direction Measured at 175 Fýeetffor Various, Stability Classes for.

theLimerick Generating Station.,October,-December, 2009 Limerick Tower 1 -

f-, Period of Rccord: October -

December2009

.Stability Class - Extremely Unstable.

171Ft-26Ft Delta-T (F)

Winds Measured at 175j,.Feet Wind,.Speed (in mph)

Wind

.Direction 1-3 4-7 8-12.- 13-1.8 197-24

> 24 Total N

1 0

0 0

0 NNE NE 1'

2'

0.

0' 0

3 2

1 0

0 0

1 3

6 3

7 ENE 1 '

1 1-0-

0 0

E 1

0 3

2 0

1 0

ESE 1,

0 Or 0 0 0

1 SE 2

0.

0",

2" 0

0 0

SSE 0

0 3"

0:,.

0' 0

4 3

7 S

3:

4.1

0.

0 0 0

SSW 0

2r.

7 1

SW 0

1 1

0 WSW 1.'

7:

3" 0

0 0

10 W

0.:

8 "

7 6

7 0

0 1

3 0

0 2

0 11 1

23 1

35 1

5,=

18..

NW 1i 0

6:"

3 1

11 NNW 0

0-1 2

0 0

0-0 0

3 0

Variable

.Total 0.

0 0

12 38:

51 21 5

3 130 Hours of calm in Hours of missing Hours oftmissing this stability class:

wind measurements in-this stability measurements in 0

stability class-,

0 all stability classes:

11 Page 78

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LIMERICK GENERATING STATION -- UNITS

&.2' LICENSEE

EXELON GENERATION COMPANY, LLC Tabla D'- 8-.

Wind Speed' by Direction Measured at 175 Feet for Various Stability Classes for the Limerick Generating Station, October - December, 2009 Limerick Tower 1:-

Period of Recordý,,October -

December2009 Stability Class - Moderately Unstable ' -

171vFt-2.6Ft Delta-T (F)

Winds Measured at "175 Feet Wind Speed (in mph)

Wind

,Directl ný,.:

l*!

'-'-- 4-7, 8-12 13-18:' 19-24 N

0 NNE 1

NE 01 ENE 0

E 0

ESE 0

SE 0

SSE 01 S0 SSW 1

SW 0

WSW 0.

W 0

WNW 0

NW 1

NNW 0

Variable 0

1 11 0

0..

0.

0*

0' 0

0-4-

0, 0

1' 0.

0 0.1-0 3

3 0

0

2:

5:

3 2

0" 0'.

0 0

0.

2 0

0 0

0" 0

0-9 3

2 0."

0 0

7 4

0 0

0.

>, 24 0

0 0

. 0 0

.. 0 2

2 4

0

-0 Total 3

2 1

2 2

1 0

0 4

4 0

0 12 24 11 5

0 71 Total 3'ý 11 20 18 11 ;,

"- 8 Hours of calm in this stability class:

0 i"

Hours of missing,wind'measurements 'in this stability class:.,,-

0 Hours of missing stability measurements in all-stability classes:

11 Page 79

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LICENSEE:

Table D. LIMERICK GENERATING STATION - UNITS I & 2, EXELON GENERATION COMPANY, LLC"

4. 9t Wind Speed by Direction Measured at 175 Feet for Various Stability Classes for -

the'Li~merick Generating Stationi October - December, 2009, Limerick Tower 1 Period of Record: October.- December2009 Stability. Class - Slightly Unstable

. - 171Ft-26Ft Delta-T (F)

Winds Measured at 175'. Feet Wind-Seed (in mph)

Wind Direction 1-3 4-7.

8-12 13-18 19-:24

> 24 Total N

NNE NE ENE E

ESE SE 0

3.'"

2..

1 0

1 3

3.,

1 0

0 1

0 0

6 5

4 3

0.1 0

5 !

2 "

0 0

0 10

0.

2 5,

0

0.

0 0

7 4

2 0

2 1.

0 0

0

0.

0 1

SSE 1

1, 0-0L 0

0 S

SSW SW WSW W

WNW 0i 1>'

1.

0 0

1 4

1 0

1 1

0 0

0 2

6 2

1 01 1

1 0

3 01' 2'

7 2

1 0i 4

8 11 4

2 1

13 1

28 2

13 NW 0

0 3.*

6 1

,NNW 1

1.'

3 2

1...0 8

0 Variable 0

0

0.

0 0

0 Total 9

30 37 22 11 4

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

wind measurements in this stability measurements in

0..

stability class:

0 all stability'classes:

11 Page 80

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LIMERICK GENERATING STATION -. 'UNITS 1 & 2:

LICENSEE:

EXELON GENERATION COMPANY, LLC' Table D -871 Wind Speed by Direction Measured at.175 Feet for Various Stability Classes for the Limerick Generating Station, October-* December, 2009 Limerick Tower 1

,`Period of Record: October December2009 Stability Class - Neutral.;

171Ft-26Ft Delta-T (F)

W.fnds Measured at 175.;Feet

."ind Speed (in mph)

Wind

,.)Direction 1-3 4-7 8-12'.- 13-18 19-24

>...24 Total N

5 14 23

7.

0 0

49 NNE 5'

25 39 14' 0

0 83 NE 8;

31 50 30 2

0 121 ENE 8

30, 31:

0 0

0 69 E

4" 15 20 34 3

0 76 ESE 1

9' 3,

5 0

0 18 SE 6

5 2

2 0

0 15 SSE 1'

7 14 0

0 0

22 S

0 4

15!

10 1

0 30 SSW

1.

6 10

5.

3 0

25 SW 3

5 5

1:'

0

.0 14 WSW 1

2 3

3 3

0 12 W

7 8

13 14 10

.1 53 WNW 4

20' 35 56:,

32 2

149 NW 3

10' 22 50 13

-, 5 103 NNW 4

6.

14.

8.ý[

2 0

34 Variable 0

0 0

0 0'...

0 0

Total 61 197 299 239 69 8

873 Hours of calm in this stability class:

0, f Hours of missing wind measurements in this stability class-..

0-Hours of missing stability measurements.in all stability classes:.

1-1 Page 81

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LICENSEE:

Table D 8-LIMERICK GENERATING STATION - UNITS 1 & 2,':,

-..1"'., ' `7ý i4 EXELON GENERATION COMPANY, LLC Wind Speed by Direction Measured at 175 Feet for Various'Stability Classes for the Limerick Generating Station, October - December, 2009 Limerick Tower 1

.,Stability Period of Record:.October -. December2009

,Class - Slightly :Stable 171Ft-26Ft Winds Measured at-175 Feet Delta-T (F)

Wind

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

19A24:,*,

>.`24 Total N

NNE NE ENE 4

10 15, 9

12 15 3

3 4

2 0

0 0

32 0

39 5

6.

12 0

27 2

13 6

E 3

9 13 6..

0 ESE SE SSE S

SSW SW 4

2ý 2

1' 6,-

3.

6 4

6 4.ý 4

1 0

0 0

0 23 0

31 0

20 0

14 0

22 8

6 8,

16:

11.

.0 36 21 2

9:

7 3

7 0

0 1'

10" 6

0 1

25 WSW Q

6_

7 9

10 0

1 33 W

2-16ý 10 9

2 0

39 3.'

25 69 32 1

'0 130 4

11 41 15, 0

0 0

71 0

17 NNW 3

6

7.

1

.Variable

. Total 0

0,'

0 53, 158 241 0

1221' 0.

4 0

2 580 Hours of calm in this stability class:

0 Hours of missing wind measurements in thisstability class:

0 Hours of missing stability measurements in all stability classes:

11 Page 82

SITE:

LIMERICK GENERATING STATION - UNITS 1 & 2 LICENSEE:

EXELON GENERATION COMPANY, LLC" Table D -8, Wind Speed by Direction Measured at 175. Feet for Various Stability Classes for the Limerick Generating Station, October - December, 2009 Limerick Tower 1

Period-of Record: October - December2009 Stability Class - Moderately'Stable.

- i71Ft-26Ft Winds Measured at 175 'Feet Delta-T (F)

Wind 'Speed (in mph)

Wind Direction '

N 1-S 0

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

.> 24 Total 1

i":1 0

0

'NNE NE ENE 1

4

1.

2.

3.

0" 0

0 0

2 8

1 -,

0 0

4 2:.

4 1-:

0.

0 7

E ESE SE SSE S

SSW SW WSW W

WNW NW 1

0 4

0.

6' 4

0 1'

1 0.,

0, 0'

0

.02 2

4 0

11 0

0 0

10 0'

0.

0 0

1 1:

3...

3' 0

0 0

7 0'

5' 5,

1.

0 0

11 4'

4 1

12 1

4 0'

0 0

9 i'

0 0

18 2'

9 1

29, 2

7:"-

0.,

0 3 -

1 0

0 18 0

54 6

10 8'

2 0

0 26 17 NNW Variable Total 7'

7' 3

0,"

0 0

0, 0

0.,

0 0

32

91.

67 9ý 199

.11 Hours of calm in Hours of missing Hours of missing this stability class:

wind maasurements in this stability measurements in 4

stability-class:-

0 all stability.classes:

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EXELON GENERATION COMPANY, LLC Table D - 8 Wind Speed by Direction Measured! at 175 Feet for Various Stability Classes for the Limerick Generating Station, October - December, 2009 Limerick Tower 1 Period of Record: October - December2009 Stability-Class - Extremely Stable

- 171Ft-26Ft Delta-T (F)

Winds, Measured at 175 Feet Wind Speed (in mph)

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

> 24 Total N

5 8

3 0

0 0

16 NNE S

3 1

0 0

0 9

NE.

5 2

0 0

7 ENE 4

2 0

0 0

0 6

E 4

4 1

0 0<

0 9

ESE 2

1, 0

0" 0

6 2SE 1-0 G

0' 0

2 SSE 1,2

2.

1" 0

0..

0 5

,S%

2 1

0 0

3 SSW 3

2 00 0

0 5

SW 4

6 2

00 12

.WSW

'7

'9 3

0 0

0 19 13*

3100 0

21 bW4.

10

.15 25ý 0

-0 0

50 NW q 23 8

7'0.

0 0

38 5

§8 2

0 0

0 15 "Variable

-0 01 0.

0 0

0 C

Total 72 101 50 0

0 0

223 Hours of'"calm in this-stabili'ty class:

4 Hours. of :,missing wind, measurements in this stability classs:

0 Hours of missing stability measurements in all stability classes:

11 Page 84

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LIMERICK GENERATING STATION - UNITS 1 & 2 EXELON GENERATION COMPANY, LLC Table D - 9 Wind Speed by Direction Measured at 30 Feet for Various Stability Classes for the Limerick Generating Station, January - December, 2009 Limerick Tower 1 30 ft.

Wind Speed and Direction January-December, 2009 171Ft-26Ft Delta-T (F)

Number of Observations =

8311 Values are Percent Occurrence SPEED CLASS EU MU C zU A

N L SS N MS ES EU MU 1 LU N

3 85 MS ES EU MU 4 aU N

7 SS MS ES EU MU 8 SO N

1 S8 2 MS ES EU 1 MU 3 LU N

1 SS 8 MS ES WIND DIRECTION CLASSES STABILITY N

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW NW NNW TOTAL EU MU SU N

CLASSES-----------

0..00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0Or. 0 0 0.02 0.02 0.06 0.40 0.73 0.31 0.48 0.13 0.04 0.23 1.07 0.47 0.04 0.00 0.07 0.05 0.12 0.42 0.06 0.00 0.00 0.00 0.01 0.01 0.02 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.02 0.00 0.05 0.59 0.69 0.22 0.28 0.24 0.07 0.14 1.22 0.48 0.06 0.00 0.02 0.00 0.00 0.55 0.06 0.00 0.00 0.00 0.00 0.00 0.02 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.02 0.01 0.07 0.63 0.96 0.25 0.34 0.29 0.12 0.13 1.25 0.66 0.04 0.00 0.01 0.05 0.00 0.40 0.07 0.00 0.00 0.00 0.00 0.00 0.02 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.06 0.01 0.01 0.58 0.85 0.35 0.19 0.22 0.07 0.14 1.65 0.84 0.06 0.00

0.05 0.02 0.07

.0.40

.,0.16 0.00 0.00

.-0.00 0.00

0.00 0.01

0. 00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

.0.00 0.06 0.00 0.04 0.43 0.71 0.19 0.12 0.08 0.04 0.10 1.34 0.77 0.07 0.01 0.01 0.01 0.11 1.03 0.41 0.00 0.00 0ý 01 0*.01 0.0.00 0.08 0.07 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.04 0.00 0.02 0.26 0.29 0.20 0.10 0.02 0.02 0.05 0.34 0.45-0.04 0.00 0.05 0.00 0.01 0.22 0.16 0.00 0.00 0.00 0.00 0.00 0.04 0.01 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.05 0.01 0.02 0.19 0.25 0.17 0.06 0.04 0.01 0.04 0.32 0.53 0.02 0.00 0.00 0.0.8 0.00 0.01 0.07 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.01 0.00 0.06 0.31 0.32 0.17 0.05 0.04 0.05 0.10 0.73 0.83 0.06 0.00 0.01 0.00 0.00 0.06 0.17 0.00 0.00 0.00 0 ;-00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.04 0.01 0.05 0.36 0.47 0.26 0.06 0.31 0.10 0.19 0.77 1'ý20 0.17 0.00 0.06 0.02 0.07 0.26 0.13 0.00 0.00 0.00 0.02 0.04 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.10 0.01 0.02 0.28 0.73 0.45 0.10 0.57 0.26 0.32 0.88 0.73 0.14 0.00 0.13 0M04 0.02 0.19 0.05 0.00 0.00 0.00 0.00 6.oo 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.08 0.05 0.08 0.43 0.96 0.45 0.24 0.43 0.08 0.20 0.41

'0.31 0.04 0.00 0.02 0.00 0.01 0.02 0.07 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.16, 0.17-0.06 0.11 0.10 0.16 0.58 0.66 1.24 1.74 0.69 1.40 0.30 0.99 0.34 0.75 0.06 0.14 0.23 0.28 0.37 0.78 0.41" 1.23ý 0.00 0.11 0.01 0.02 0.12 0.14

ý-0.07, 0.08 0.06 0.13 0.07 0.65 0.14 0.34 0.00 0.00 0.00 0.00 0.00 0.04 0 o. 00.* 0.06 0.00 0.02 0.00 0.25 0.00 0.04 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.07 0.02 0.08 0.61 1.60 1.55 1.41 0.61 0.42 0.24 1.49 1.93 0.29 0.06 0.37 0.39 0.29 1.91 0.57 0.00 0.00 0.11 0.12 0.12 0.72 0.10 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.05 0.06 0.05 0.53 1.22 1.02 1.08 0.30 0.30 0.39 1.78 1.06 0.13 0.02 0.36 0.47 0.61 2.86 0.53 0.00 0.00 0.05 0.22 0.39 1.31 0.02 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.02 0.06 0.01 0.55 0.72 0.47 0.84 0.07 0.10 0.08 0.84 0;.77 0.01 0.00 0.02 0.-0 0.13 1.01 0.16 0.00 0.00 0.00 0.00 0.05 0.20 0.04 0.00 0.00 0.01 0.01 0.00 0.00

.0.00 0.13 0.23 0.25

.0.97 0.97 0.45 0.89 7.40 13.50 8.15 6.63 4.44 4.44 1.89 2.86 15.24 12.67 1.28 0.13 1.47 1.47 1.30 1.65 10.08 3.14 0.00 0.00 0.20 0.20 0.45 0.60 2.73 0.29 0.00 0.00 0.00 0.45 1.89 1.30.

0.00 0.00 0

SS MS ES

.13 0. 2 3 "O i

0.25 0.89 2.86 TOTAL 0.63 37.99 7.40 13.50.

8.15 6.63 15.24

-12.67 1.28

,0.13 7-38.52 1.65 10.08 3.14 0.00

0.00 17.64 0.00 0.00 0.00 0.00 0.01 0.00 0.00 0.45 0.60) 2.73 0.29 0.00 0.00 4.27 Page 85

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LIMERICK GENERATING STATION - UNITS 1 & 2 EXELON GENERATION COMPANY, LLC Table D - 9 Wind Speed by Direction Measured at 30 Feet for Various Stability Classes for the Limerick Generating Station, January - December, 2009 Limerick Tower 1' January-December; 2009 30 ft.

Wind Speed and Direction 171rt-26Ft Delta-T (F)

SPEED I

-WIND DIRECTION CLASSES ---

STABILITY CLASSES----------

CLASS N

NNE NE ENE E,

ESE'-,

SE SSE S

SSW SW WSW W

I%'NW NW NNW TOTAL EU MU SU N

SS MS ES TOTAL EU 1 MU 9 SU N

2 SS 4 MS ES EU G MU T SU N

2 SS 4 MS ES 0.00 0.00 0.00 0.00 0'00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 O.O0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0:00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0o00 0:900 0.00 0.00 0.00 0.00 O.OCU 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0Uo0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0:00 0.00 0.00 0.00 0:00 0.00 0.00 0.00 0.00 0o00 0.00 0.00 0;U0 0.0c 0.00 0.00 0.00 0.00 0.00 C 00 0.00 0.00 0.00 0.00 5.03 0.00 0.00 0.00 0.00 0.00 0.00 C¢00 0.00 jU0 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.02 0.01 0.00 0-0c 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.01 0.01 0.04 0.06 U000 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0;07 0.01 0.10 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.01 0.08 0.07 0.17 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.01 0.00 0.08 0.00 0.07 0.00 0.17 0.00 0.00 0.00 0.00 0.00 0.34 0.00 0.00 0.00 TOT 4.78 4.72 5.33 5.75 5.72 2.31 1.80 2.97 4.62 3.92 5.01 10.32 15.21 14.99 6.27 99.37 7.11 4.16 6.08 35.63 29.73 9.65 7.01 99.37 Wind Direction by Stability N

NNE NE ENE E

ESE SE "SSE S

SSW SW WW WS 0.23 0.12 0.42 1.91 1.26 0.35 0.48 0.29 0.07 0.19 2.38 1.23 0.28 0.28 0.32 0.18 0.20 2.30 1.70 0.29 0.34 0.32 0.11 0.23 2.64 1.85 0.41 0.19 0.17 0.06 0.24 2.89 1.96 0.26 0.13 Wind Direction by Wind Speed N

NNE NE ENE E

0.11 0.02 0.08 0.85 0.90 0.24 0.10 ESE 0.00 0.91 0.91 0.43 0.05 0.00 0.00 0.08 0.02 0.06 0.53 0.85 C.19 0.06 SE 0.00 0.76 0.96 0.08 0.00 0.00 0.00 0.06 0.05

0. 16 1.11 1.32 0.23 0.05 SSE 0.00 0.93 1.80 0.24 0.00 0.00' 0.00 0.41 0.16 0.32 1.43 1.80 0'43 0.06 0.79 0.31 0.37 1.35 1.52 0.59 0.10 0.54 0.13 0.30 0.87 1.36 0 48 0.24 0.61 0.19 0.39 1.02 1.7S 0.69 0.31 1.09 0.40 0.61 2.36 3.34 1.50 1.01 1.18 0.96 0.77 4.80 4.19 1.84 1.47 NW 0.76 1.12 1.44 6.58 2.83 1.16 1.112

NNW 0.12 0.25 0.28 2.61 1.68 0.48 0.84 TOTAL 7.11 4.16 6.08 35.63 29.73 9.65 7.01

-STABILITY CLASSES-Extremely Unstable Moderately Unstable Slightly Unstable Neutral Slightly Stable Moderately Stable Extremely Stable

-WIND SPEED CLASSEb-CALM 3.5 mph 3.6 -

7.5 mph 7.6 -

12.5 mph 12.6 -

18.5 mph 18.6 -

24.5 mph

> 24.5 mph S

SSW SW WSW w

WIM NW M

NEW TOTAL 0.00 2.03 1.97 0.72 0.05 0.00 0.00 0.00 1.84 2.21 0.64 0.02 0.00 0.00 0.00 2.29 2.49 0.53 0.02 0.00 0.00 0.00 2.06 2.98 0.70 0.01 0.00 0.00 0.00 1.55 2.41 1.58 0.18 0.00 0.00 0.00 1.25 2.74 0.55 0.07 0.00 0.00 0.00 1.68 2.91 0.43 0.00 0.00 0.00 0.00 2.30 1.48 0.13 0.01 0.00 0.00 0.00 3.12 1.42 0.47 0.00 0.00 0.00 0.00 5.22 3.31 1.35 0.41 0.04 0.00 0.00 5.35 5.04 3.53 1.17 0.12 0.00 0.00 4.01 3.98 4.84 1.99 0..18 0.00 0.00 2.68 1.88 1.42 0.29 0.00

-ý0.00 0.63 37.99 38.52 17.64 4.27 0.34 "0.00 Page 86

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LIMERICK GENERATING STATION - UNITS 1 & 2 EXELON GENERATION COMPANY, LLC Table D - 10 Wind Speed by Direction Measured at 175 Feet for Various Stability Classes for the Limerick Generating Station, January - December, 2009 Limerick Tower 1 175 ft.

Wind Speed and Direction January-December, 2009 S171Ft-26Ft Delta-ý-T (F)

SNumber'of Observations 8437 Values are Percent Occurrence SPEED WIND DIRECTION CLASSES STABILITY CLASSES-----------

CLASS N

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW NW NWW TOTAL EU'

U" SU N

SS MS ES TOTAL EU MU C SO A

N L SS M MS ES EU MU 1 SU N

3 SS MS ES EU MU 4 SU N

7 SS MS ES EU MU 8 SU N

1 SS 2 MS ES EU 1 MU 3 SU N

1 SS 8 MS ES 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.02 0.00 0.01 0.25 0.32 0.07 0.12 0.06 0.05 0.12 0.56 0.43 0.12 0.18 0.09 0.06 0.19 0.79 0.65 0.09 0.05 0.01 0.05 0.06 0.43 0.09 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.01 0.01 0.01 0.25 0.37 0.05 0.09 0.14 0.08 0.20 0.73 0.52 0.09 0.07 0.15 0.02 0.04 0.81 0.40 0.04 0.01 0.00 0.00 0.00 0.31 0.08 0.01 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.05 0.00 0.01 0.4'0 0.39 0.06 0.12 0.25 0.06 0.09 1.08 0.57 0.11 0.08 0.09 0.04 0.08 0.94 0.50 0.04 0.01 0.00 0.00 0.00 0.41 0.07 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.02 0.00 0.05 0.34 0.31 0.13 0.13 0.12 0.09 0.12 1.10 0.89 0.12 0.13 0.11 0.07 0.04 0.87 0.44 0.01 0.00 0.00 0.00 0.00 0.02 0.04 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.01 0.01 0.01 0.28 0.27 0.02 0.20 0.08 0.02 0.07 0.81 0.58 0.11 0.06 0.09 0.01 0.1v 1.16 0.82 0.08 0.04 0.00 0.02 "0.00 0.71 0.25 0.05 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.04 0.11 0.20 0.09 0.12 0.02 0.00 0.04 0.39 0.40 0.07 0.07 0.01 0.01 0.01 0.45 0.40 0.01 0.04 0.00 0.00 0.00 0.00 0'.00 0.00 0.00 0.05 0.00 0.04 0.20 0.20 0.14 0.07 0.01 0.01 0.05 0.20 0.20 0.08 0.06 0.00 0.02 0.00 0.21 0.33 0-00 0.00 0'.06 0.00 0.00 0.04 0.11 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.02 0.00 0.01 0.11 0.15 0.09 0.07 0.07 0.00 0.06 0.32 0.40 0.13 0.06 0.01 0.00 0.02 0.52 0.68 0-04 0I01 0.00 0.00 0.00 10.05 0.14 0.01 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.04 0.00 0.00 0.07 0.09 0.07 0.06 0.08 0.06 0.17 0.38 0.58 0.23 0.13 0.17 0.07 0.13 0.73 1.27 0 12 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.01 0.01 0.04 0.20 0.08 0.08 0.13 0.18 0.13 0.12 0.41 0.62 0.27 0'.28 0.49 0.18 0.23 0.66 0.77 0.25 0.02 0.00 0.00 0.00 0.00 0.00 0.00 0.04 0.00 0.00 0.09 0.06 0.15 0.12 0.15 0.05 0.12 0.46 0.69 0.45 0.27 0.25 0.07 0.19 0.2:3 0.63 0.24 0.14 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.01 0.01 0.04 0.18 0.14 0.07 0:20 0.25 0.06 0.12 0.26 0.58 0.52 0.34 0.24 0.04 0.15 0.27 0.43 0.18 0.11 0.18 0.06 0.08 0.14 0.21 0.04 0.00 0.00 0.00 0.00 0.00 0.0b 0.00 0.00 0.02 0.02 0.04 0.33 0.25 0.09

.0.1.9 0.34 0.17 0.13 0.51 0.72 0.58 0.51 0.55 0.14 0.19 0.51 1.03 0.19 0.07 0.26 0.14 0.12 0.58 0.37 0.02 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.05 0.05 0.07 0.24 0.17 0.14 0.30 0.25 0.20 0.13 0.79 1.47 1.26 0.85 0.47 0.36 0.37 1.53 2.25 0.91 0'.57 0.24 0.31 0.43 2.04 0.77 0.02 0.02 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.02 0.04 0.00 0.17 0.25 0.30 0.27 0.05 0.09 0.11 0.52 0.77 0.69 0.72 0.23 0.25 0.3A 1.27 1.24 0.27 0.25 0.08 0.18

-0.21 1.55 0.27 0.02 0.00 0.00 0.00 0.00 0.00 0*00 0.00 0.00 0.01 0.01 0.04 0.19 0.14 0.24 0.12 0.02 0.08 0.05 0.46 0.55 0.37 0.26 0.07 0.07 0.08 0.97 0.62 0.11 0.04 0.02 0.06 0.09 0.59 0114 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.01 O.O4 0.39

-0.17 0.39 3.41 3.40 1.81

-2.30 2.09 1.16 1.68 9.00 9.97 5.19 4.09 3.02 1.41 2.24 11.92 12.46 2.57 1.35 0.00 0.39 0.00 0.00 0.39 0.00 3.41 0.00 0.01 0.04 0.05 0.17,'

3.40 2.30 2.09 3.02 1.16 1.41 1.68 2.24 9.00 9.97 5.19 2.57

,4.09 1.35 11.88 33.18 34.98 11.92 12.46 0.00 0.00 0.02-0.28

-0.26, 0.01 0.00 01.02 0*12 0.06 0.02 0.02 0.00 0.04 0;05 0.01 0.23 "0.31 0.09 0.37 0.24 0.18 0.00 0.07 0.01 0.00 0.00 0.01 1.05 0.87 1.11 7;79 3.59 0.27 0.04 1.05 0.87 1.11

.7.79 3.59 0.27 0.04 14.72 Page 87

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LIMERICK GENERATING STATION - UNITS 1 & 2 EXELON GENERATION COMPANY, LLC Table D - 10 Wind Speed by Direction Measured at 175 Feet for Various Stability Classes for the Limerick Generating Station, January - December, 2009.

Limerick Tower 1 175 ft.,

Wind Speed and Direction January-December, 2009 171Ft-26Ft Delta-T (F)

SPEED--------------------

WIND DIRECTION CLASSES CLASS N

NNE ME ENE E

ESE, SE SSE S

SSW SW WSW.

STABILITY CLASSES -----------

EU MU SU N

SS MS ES TOTAL W

WNW NW NNW TOTAL EU 1 MU 9 SU N

2 SS 4 MS ES EU G MU T SU N

2 SS 4 MS ES 0.00 0.00 0.00 0.04 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.01 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.05 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

'0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.01 0.00 0.00 0.04 0.05 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.04 0.00 0.01 0.00 O.CO -0.00' 0.00-- 0.00

",0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

-0.02 0.00 '0,00.

.0.04 0.00 0.04 0.01 0.00 0.05 0.09 0.00 0.01

ý0.00. 0.00

0.00 '0.00.

0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.01 0.00 0.01 0.00 0.07 0.01 0.07

ý0.00 0.00 0.-00 0.00 0.0 0 0.00 0.00 00M 0.00 0.00 0.00 0.01 0.01 0.02 0.00 0.00 0.00 0.00

.0.04 ' 0.06 0.11 0.12 0.08 0.11 0.38 1.16 0.11 0.17 0.00 0.00 0.00: 0.00 0.00 0.08 0.13 0 _".57 0.00 0.00 0.00 0.01 0.06 0.02 0.12 0.00 0.00 0.00 0.00 0.00 0.06 0.13 0.04 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.17 0.36 0.41 2.61 0.46 0.00 0.00 0.13 0.17 0.18 0.58 0.09 0.00 0.00 0.17 0.13 0.36 0.41 2.61 0.46 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.02 0.05 0.07 0.19 0.04O 0.00 0.00 0.09 0.06 0.08 0.26 0.02 0.00 0.00 0.17 0.18 0.58 0.09 4.01 1.15 99.95 0.00-6.60 TOT 4.91 4.53 5.50 5.14 6.06 3.12 2.09 2.99 5.20 6.10 4.79 5.14 9.16 18.38 11.17 5.63 99.95 6.85 4.12 6.02 35.31 29.98 9.86 7.-1l Wind Direction by Stability N

NNE NE ENE E

ESE SE SSE S

SSW SW WSW 0.19 0.15 0.38 2.06 1.49 0.28 0.34 0.31 0.12 0.26 2.10 1.37 0.19 0.18 0.39 0.09 0.19 2.88 1.53 0.20 0.21 0.25 0.17 0.20 2.33 1.67 0.26 0.26 0.20 0.07 0.26 3.00 1.97 0.26 0.30 0.04 0.01 0.11 1.27 1.28 0.19 0.23 0.12 0.04 0.08 0.65 0.84 0.23 0.13 0.11 0.00 0.09 1.00 1.37 0.27 0.14 0.33 0.15 0.34 1.46 2.31 0.41 0.19 0.79 0.38 0.43 1.68 1.72 0.68 0.43 0.50 0.71 1

0.12 0.18 0

0.32 0.40 0

0.88 0.94 2

1.58 -1.46 2

o.85. 0.81 0

0.55 0.65 0

W WNW:'

W NNW TOTAL'

.23 1.16 0.39 0.13 6.85

.63 _1.09 0.70 0.23 4.12

.63 1.19 0.82 0.32 6.02

.50 6.02 4.20 2.35 35.31

.51.4.85 2.54 1.48 29.98

.89 2-.33 1.28-- 0.71.- 9.86"

.77 _1.74 1.24, 0o41, 7.81

" -STABILITY CLASSES.-

Extremely Unstable Moderately Unstable.

Slightly Unstable Neutral Slightly Stable Moderately Stable Extremely Stable Wind Direction by Wind Speed.

N NNE NE ENE E

ESE SE-0.00 0.79 1.51 1.93 0.64 0.04 0.00 0.00 0.79 1.85 1.47 0.40 0.01 0.00 0.00 1.03 2.24 1.69 0.49 0.05 0.00 0.00 0.98 2.57 1.53 0.06 0.00 0.00 0.00 0.82 1.73 2.38 1.03 0.09 0.00 0.00 0.56 1.00 0.94 0.58 0.05 0.00 0.00 0.70 0.62 0.57 0.20 0.00 0-. 00 SSE S

SSW-0.00 0.00 0.00 0.

0.46 0.33 0.55 0.

1.04 1.62 2.01 2.

1.28 2.49 2.60 1.

0.20 0.68 0.81 0.

0.00'-0.08 0.14 0.

0.00 0.00 0.00-0.

00 0.00 46 0.65 19 2.13 74 1.41 37 0.71

.01 0.20 01 0.04 0.00 0.95 2.96 2.68 1.49 0.7.1 0.37 SW-WSW W

WNW NW NNW. TOTAL

-WIND' SPEED CLASSES-0.00 1.01 4.95 6.46 3.83 1.61 0.52 0.00_ 0.00 1.04 0.75 2.95 1.79 3.85 1.96 2.32 0.91 0.78.0.23 0.21 0.00 0.05 11.88 33.18 34.98 14.72 4.01 1.15 C-A LM 3.5 mph 3.6 -

7.5 mph 7.6 -

12.5 mph 12.6 -

18.5 mph 18.6,- 24.5 mph

> 24.5 mph Page 88

SITE:

LICENSEE:

LIMERICK GENERATING STATION - UNITS 1 & 2 EXELON GENERATION COMPANY, LLC Table D - 11 Annual x/Q and D/Q values for the North Stack, Limerick Generating Station, 2009 Limerick Generating Station x/Q and D/Q values North Stack - Flow = 251200 cfm ck ID Location Direct X/Q (s/mA3)

Undepleted DIQ (IimA2)

Sta ion Ran

,(m)

Site Boundary Site Boundary Site Boundary Site Boundary Site Boundary Site Boundary,_!:

Site Boundary Site Boundary Site Boundary.

.Site Boundary Site Boundary Site Boundary Site Boundary Site Boundary Site Boundary Site Boundary RR-Inf-Lck-NG RR-Inf-Lck-NG RR-Inf-Lck-NG RR-Inf-Lck-NG RR-Inf-Lck-NG RR-Inf-Lck-NG RR-Inf-Lck-NG RR-Inf-Lck-NG RR-Inf-Lck-NG RR-Inf-Lck-NG Inhalation Inhalation Inhalation Inhalation Inhalation Inhalation Inhalation Inhalation Inhalation Inhalation Inhalation S

SSW SW WSW W

WNW NW NNW N

NNE NE ENE E

ESE SE

SSE S

SSW SW WSW W

WNW NW ESE WSW NNE N

NNE NE ENE E

ESE SE SSE S

SSW SW 762 762 884 854 854 793 762 884 884.

793 793 793 762

762, 762 1006 300 2251.

225 345 225 345 450 884 450 682-948 825 1057 985 873 1047 1557 1647 1325 1543 991 1.86E-07 1.94E-07 1.80E-07 2.12E-07 2.90E-07 1.03E-07 7.11 E-08 1.05E-07 1.76E-07 1.94E-07 1.12E-07 1.36E-07 4.09E-07 8.02E-07 9.04E-07 1.91 E-07 7.98E-07 1.40E-06 1.62E-06 8.39E-07 2.53E-06 3.84E&07 1.62E-07 6.55E-07 5.27E-07 2.37E-07 1.61 E-07 1.84E-07 7.87E-08 1.03E-07 3.42E-07

.5.20E-07':

3.45E-07

'1.03E-07 8.91 E-08 7.90E-08 1.54E-07 1.77E-09 1.75E-09 1.51 E-09 1.81 E-09 2.95E-09 8.99E-10 4.51 E-10 7.59E-1 0 1.64E-09 2.OOE-09 1.12E-09 11.49E-ý09 4.48E-09 9.70E-09 1.21 E-08 2.04E-09 6.56E-09 6.32E-09 9.92E-09 6.13E-09 2.09E-08 3.1OE-09 9.61 E-10 7.78E709 4.30E-09 2.42E-69 1.49E-09 1.91 E-09 8.1OE-1.0 1.15E-09 3.72E-09 6.08E-09 4.23E-09 1.08E-09 9.09E71 0 8.11E-10 1.31 E-09 Page 89

SITE:

LICENSEE:

LIMERICK GENERATING STATION:-_ UNITS I & 2 EXELON GENERATION COMPANY, LLC 7

Table D -7 11. - Annual x/Qoand D/Q values for the North Stack, Limerick Generating Station,.2009 Limerick Generating Station X/Q and D/Q values North Stack - Flow = 251200 cfm X/Q (s/mA3)

0)

UndeDleted

... D/Q (1/mA2)

Stack ID

ý. Location

'Direction Ranae (rr

. i NN N-1 N-N

.N N

N N

N N.

N'.

-N' N

N N

NN' Inhalation Inhalation,..

Inhalation' Inhalaticn Inhaiation Vegetation Vegetation Vegetation Vegetation Vegetation Vegetation Vegetation Vegetation Vegetation Vegetation Vegetation Vegetation Vegetation Vegetation Vegetation.

Vegetation.

Meat,.

Meat, Meatýý.,

Meat-:

Meat Meat Meat.-

Cow,::.'.:

Cow -

Cow Cow Cow C

,ow i..

"WSW

, W

,-WNW

,.NW NNW N

':NNE

'NE ENE ESE SE SSE "S

SSW SW

,WSW WN W

WNW

NW NNW t-N ENE SE S

SSW SW WSW

'N S

'SSW WSW SW 1158

'.! 105

,1198 1104 1540

,ý2867

'.2S29

.54 16 4372

'3849 555

~.30 2102

1860

1i622

.1572

£662

.-1283

.'1:198 2490 2666 "7565 6264 3331

'.3722

3145 E653

..4336.

.4467

ý 7565 6781

.31,45

'4336

'4467 1.42E'-07.

2.04E-07-.,

5P.88E708.,

4.34E-08' 5.'25E-08 5.74E708 5.78E-08 3.68E-08 4:70E-08 9.85E-08 1*27E-06 7

2.43E-06ýj 8.24E1-08, 6.34E,,08, 7.511E-08 8.75E-08-,

6.52E-08 I1.67E-07

'5,88E-08

.2.20E-0,3,

3.70E-08,K 3.33E-08,

'4.33E-08 1.67E-07o 4.84E-08 5.27E-08.'.

5.16E&08 6.13E-08 6.14E-08 3.33E-08 3.77E-08:

5.27E708 6.13E-08 6.14E-08 1.28E-09 2.06E-09 5.17E-10 2.85E-10 4.1OE-'10 3.55E-10 3.82E-10 1.03E-10 1.78E-10 4.72E-1 0 1.55E-08 3.31 E-08 7.71E-10 6.28E-.10 7.65E-10 8.33E-10 3.54E-10 1.70E-09 5.17E-10 1.23E-10 2.09E-10 8.45E-1 1 1.04E-10 1.36E-09 2.67E-10 3.52E-10 1.68E-10 2.83E-10 3.15E-10 8.45E-1 1 1.11E-10 3.52E-10 2.83E-10 3.15E-10 Page 90

SITE:

LICENSEE:

LIMERICK GENERATING STATIONW-UNITS -& 2 EXELON GENERATION COMPANY,LLC",

!L Table D '-:-12 Annual x/Q and D/Q values for the Sout Stabk, Limerick Generating Station, 2009 Limerick Generating Station Vx/Q and D/Q values South Stack - FIow'= 177200 cfm ID

- Location Direction Ranae (im)

X/Q (s/mA3)

UndeDleted

-D/Q (1/mA2)

Stack S

S S

SS S

S S

S S.

S S

S.

S S

S Site Boundary Site Boundary.

Site Boundary Site Boundary Site Boundary Site Boundary Site Bound*,ry Site Boundary Site Boundary Site Boundary Site Boundary Site Boundary Site B6uridary

.Site Boundary Site Boundary Site Boundary RR-Inf-'Lck-NG RR-Inf-Lck-NG

-RR-Ini-ELk-NG RR-Irf-Lck-NG RR-In,-Lck-NG RR-In',mLck-NG RR-Inf-Lck-NG RR-Inf-Lck-NG RR-Inf-Lck-NG RR-Inf-Lck-NG Inhalation Inhalation Inhalation-Inhalation-Inhalation Inhalation*C Inhalation K

Inhalation Inhalation Inhalation Inhalation Inhalation Inhalation Inhalation Inhalation

'SSW

, SW WSW WNW

-NW NNW NN NNE NE

.,ENE ESE SE SSE

- SSW SW WSW

.W

%ýWNW

--NW

' ESE WSW

.NNE

'N NNE NE

'ENE E

" ESE SE SSE S

SSW SW WSW W

WNW NW

,`-762 0762 "884 854 854

'793 762

?'884

.-.'884 793 793

-';793

-762

.762

-1006

.300 225

'225

" 345

-,225

,-345 450 884

'.450

f. 682

%'948

'825 1057

,985 I 873 1,1047 1557 1647 1325 1543 991 1158 1105 1198 1104 6.22E-08 6.49E-08 5.24E-08 6.89E&08 1.02E-07, 3.36E-08 2.28E-08,:*

3.61 E-08 6.76E-08 6.84E-08i 3.16E-08 3.94E-08 1.28E-07 2.65E-07 3.39E-07 6.70E-08 2.55E-07 4.39E-07 4.38E&07 2.51 E-07 8.70E 1.24E-07'ý-

5.15E-08, 2.24E-07 1.59E-07 8.09E-08 6.24E-08 6.55E-08 2.59E-08 3.29E-08 1.11 E-07 11.87E-07 :;"

1.61 E-0'..

4.46E-08.:.-

3.42E-08 3.24E-08 4.58E-08 4.93E-08 7.45E-08 2.03E-08 1.44E-08 8.34E-10 8.61E-10 7.29E-1 0 9.64E-10 1.23E-09 3.74E-1 0 2.06E-1 0 3.98E'-1 0 9.35E510 1.25E-09 7.37E-10 9.39E-1 0 2.35E-09 4.61 E-09 5.53E-09 9.29E-1 0 2.46E-09 3.49E-09 3.34E-09 2.49E-09 7.37E-09 1.16E-09 3.96E-10 3.85E-09 1.88E-09 1.44E-09 8.70E-10 1.21 E-09 5.82E-1 0 7.77E-1 0 2.03E-09 3.16E-09 2.56E-09 6.55E-10 5.73E-10 5.75E-10 6.74E-10 7.87E-10 9.60E-1 0 2.62E-1 0 1.54E-10 Page 91

SITE:

LICENSEE:

LIMERICK GENERATING STATION - UNITS 1 & 2 EXELON GENERATION COMPANY, LLC Table D - 12 Annual x/Q and D/Q values for the Sout Stack, Limerick Generating Station, 2009 Limerick Generating Station x/Q and D/Q values South" Stack Flow 7200 6im X/Q (s/mA3)

D/Q (1/mA2)

Inhalation Vegetation Vegetation Vegetation Vegetation Vegetation Vegetation Vegetation Vegetation Vegetation Vegetation Vegetation Vegetation Vegetation Vegetation Vegetation Vegetation Meat Meat..

Meat Meat Meat Meat Meat

'Me at Co*w Cow Cow Cow.

Cow ESE SE SSE SW 5wsw SW

NWSWi, W

WNW NW NNW ENE-SE S

SSW SW WSW WSW ViS:'J 1540 2867 2929 5416

4372,

-..3849 555 390 12102

.1860,"-

.1622 1572

-3662 1283 1198,2ý 2490 2666

-. 7565

-6264~

3331 3722 3145 5653 4336 44674 2 7565 6781 2

3145 2', 4336 4467 2.09E-08 3.80E-08

.3 89E-08 3.12E-08 3.78E-08 7.31E-08 3.96E-07 8.80E-07

'4.29E-0W 3.03E-08 3..18E-,08 3.19E-08 4.,78E-08

-t6,38E.- 12.03E-08,.

2 1.24E-08 2.25E-08 2, 2.95E-08, 3.,76E-08,

' 1..20E-07..

3.67E-08 3.62E-08 4.34E*.E-08 4.80E-08 4.81 E-08 2.95E-08*-

3.32E-08 3.62E-08

'4.80E-08 4.81 E-08 2.76E-10 2.82E-10 3.20E-10 9.40E-1 1 1.58E-10 3.82E-10 6.83E-09 1.38E-08 5.17E-10 4.61 E-10 5.52E-10 5.72E-10 3.09E-10 8.70E-10 2.62E-10 9.37E-1 1 1.62E-10

,.. 7.46E-11 9.42E-1 1

, 1.05E-09 2.32E-10 3.OOE-10 1.52E-10 2.52E-10 2.56E-10 7.46E-1 1 1.02E-10

" 3.OOE-10 2.52E-10 2.56E-10

~

Page 92

RW-AA-iO00 Revision 7 Page 1 of 9 Nuclear Level 3 - Information Use PROCESS CONTROL PROGRAM FOR RADIOACTIVE WASTES 1

PURPOSE 1.1.

The purpose of the Process Control Program (PCP) is to:

1.1.1.

Establish the process and boundary conditions for the preparation 'of specific procedures for processing, sampling, analysis, packaging, storage, and shipment of solid radwaste in accordance with local, state, and federal requirements. (CM-1) 1.1.2.

Establish' parameters which will provide reasonable assurance that all Low Level Radioacti'e Wastes (LLRW), processed by the in-plant waste process systems on-site OR by on-site vendor'supplied waste processing systems, meet the acceptance 'criteria to a Licensed Burial Facility, as required by10CFR Part 20, 10CFR Part`6i 10CFR Part71, 49CFR Parts 171-172, "Technical Position on Waste F6rm (Revision 1)" [0/91], "Low-Level Waste Licensing Branch Technical Position on Radioactive Waste Classification" [5/83], and the'Station Technical Specifications, as applicable.

1.1.31 Provide reasonable assurance that waste placed in "on-site storage"'meets the requirements as addressed within the Safety Analysis Reports for the low level radwaste storage facilities for dry and/or Processed wet waste.

2.

TERMS AND DEFINITIONS,:,

2.1.

Process Control Program.(PcP): The program which contains.the current.

formulas,,sampling, analysis, tests, and determinations to be made to ensure that processing and packaging of solid radioactive waste based on demonstrated processing of actual or simulated wet solid-wastes will be accomplshed in such a way as to assure the waste meets the stabilization criteria specified in 10CFR Parts 20, 61 and 71,, state regulations, and burial site requirements.

2.2. Solidification

Liquid waste processed to either an unstable or stable form per 10CFR61 requirements. Waste solidified does not have to meet the 300-year free standing monolith criteria. Approved formulas, samples and tests do not have to meet NRC approval for wastes solidified in a container meeting stability (e.g. High Integrity Container).

2.3. Stabilization

Liquid waste processed to a "stable state" per 10CFR61 Requirements. Established formulas, samples, and tests shall be approved by the NRC in order to meet solidification "stabilization" criteria. This processing method is currently not available, because the NRC recognizes that waste packed in a High Integrity Container meets the 300-year stabilization criteria. In the event that this processing method becomes an acceptable method, then the NRC shall approve the stabilization formulas, samples, tests, etc.

RW-AA-100 Revision 7 Page 2 of 9 2.4.

Solidification Media: An approved media (e.g. Barnwell - vinyl ester styrene, cement, bitumen) when waste containing greater than 5-year half lives is solidified in a container when the activity is greater than 1 micro curie/cc. Waste solidified in a HIC is approved by the commission meeting the 10CFR61 stabilization criteria, including 1% free standing liquids by volume when the waste is packaged to a "stable" form and < 0.5% when waste is packaged to an "unstable" form. The formulas, sampling, analysis, and test do not require NRC approval, because the HIC meets the stability criteria.

2.4.1.

Solidification to an unstable or stable state are performed by vendors, when applicable. Liquid waste solidified to meet stabilization criteria (10CFR61 and 01-91 Branch Technical Requirements) shall have documentation available that shows that the process is approved by the NRC or disposal facility.

2.5. Dewatering

The process of removing fluids from liquid waste streams to produce a waste form that meets the requirements of 10CFR Part 61 and applicable burial site criteria, <0.5% by volume when the waste is packaged to an "unstable" state, or

<1% by volume when the waste is packaged to a "stable" form.

2.6.

High Integritv Container (HIC): A disposable container that is approved to the Requirements of 10CFR61. The use of HIC's is an alternative to solidification or encapsulation in a steel container to meet burial stability. HIC's are used to package dewatered liquid wastes, (e.g. filter cartridges, filter media, resin, sludges, etc), or dry active waste.

2.7. Encapsulation

The process of placing a component (e.g. cartridge filters or mechanical components) into a special purpose disposable container and then completely surrounding the waste material with an approved stabilization media, such as cement.

2.8.

Liquid Waste Processing Systems: In-plant or vendor supplied processing systems consisting of equipment utilized for evaporation, filtration, demineralization, dewatering, compression dewatering, solidification, or reverse osmosis (RO) for the treatment of liquid wastes (such as Floor Drains, Chemical Drains and Equipment Drain inputs).

2.9.

Incineration, RVR, and/or Glass Vitrification of Liquid or Solid: Dry or wet waste processed via incineration and/or thermal processing where the volume is reduced by thermal means meets 10CFR61 requirements.

2.10.

Compaction: When dry wastes such as paper, wood, plastic, cardboard, incinerator ash, and etc. are volume reduced through the use of a compactor.

2.11.

Waste Streams: Consist of but are not limited to Filter media (powdered, bead resin and fiber),

Filter cartridges, Pre-coat body feed material, Contaminated charcoal,

RW-AA-100 Revision 7 Page 3 of 9 Fuel pool activated hardware, Oil Dry absorbent material added to a container to absorb liquids Fuel Pool Crud Sump and tank sludges, High activity filter cartridges, Concentrated liquids, Contaminated waste oil, Dried sewage or wastewater plant waste, Dry Active Waste (DAW): Waste such as filters, air filters, low activity cartridge filters, paper, wood, glass, plastic, cardboard, hoses, cloth, and metals, etc, which have become contaminated as a consequence of normal operating, housekeeping and maintenance activities.

Other radioactive waste generated from cleanup of inadvertent contamination.

3.

RESPONSIBILITIES 3.1.

Implementation of this Process Control Program (PCP) is described in procedures at each station and is the responsibility of the each site to implement.

4.

MAIN BODY 4.1.

Process Control Program Requirements 4.1.1.

A change to this PCP (Radioactive Waste Treatment Systems) may be made provided that the change is reported as part of the annual radioactive effluent release report, Regulatory Guide 1.21, and is approved by the Plant Operations' Review Committee (PORC).

4.1.2.

Changes become effective upon acceptance per station requirements.

4.1.3.

A solidification media, approved by the burial site, may be REQUIRED when liquid radwaste is solidified to a stable/unstable state.

4.1.4.

When processing liquid radwaste to meet solidification stability using a vendor supplied solidification system:

1.

If the vendor has its own Quality Assurance (QA) Program, then the vendor shall ADHERE to its own QA Program and shall have SUBMITTED its process system topical report to the NRC or agreement state.

2.

If the vendor does not HAVE its own Quality Assurance Program, then the vendor shall ADHERE to an approved Quality Assurance Topical Report standard belonging to the Station or to another vendor.

RW-AA-100 Revision 7 Page 4 of 9 4.1.5.

The vendor processing system(s) is/are controlled per the following:

1.

A commercial vendor supplied processing system(s) may be USED for the processing of LLRW streams.

2.

Vendors that process liquid LLRW at the sites shall MEET applicable QA Topical Report and Augmented Quality Requirements.

4.1.6.

Vendor processing system(s) operated at the site shall be OPERATED and CONTROLLED in accordance with vendor approved procedures or station procedures based upon vendor approved documents.

4.1.7.

All waste streams processed for burial or long term on-site storage shall MEET the waste classification and characteristics specified in 10CFR Part 61.55, Part 61.56, the 5-83 Branch Technical Position for waste classification, and the applicable burial site acceptance criteria (for any burial site operating at the time the waste was processed).

4.2.

General Waste Processing Requirements NOTE:

On-site resin processing involves tank mixing and settling, transferring to the station or vendor processing system via resin water slurry or vacuuming into approved waste containers, and, when applicable, dewatering for burial.

4.2.1.

Vendor resin beds may be USED for decontamination of plant systems, such as, Spent Fuel Pool, RWCU (reactor water cleanup), and SDC (Shut Down Cooling).

These resins are then PROCESSED via the station or vendor processing system.

4.2.2.

Various drains and sump discharges will be COLLECTED in tanks or suitable containers for processing treatment. Water from these tanks may be SENT through a filter, demineralizer, concentrator or vendor supplied processing systems.

4.2.3.

Process waste (e.g. filter media, sludges, resin, etc) will be periodically DISCHARGED to the station or vendor processing system for onsite waste treatment or PACKAGED in containers for shipment to offsite vendor for volume reduction processing.

4.2.4.

Process water (e.g. chemical, floor, equipment drain, etc.) may be SENT to either the site waste process systems or vendor waste processing systems for further filtration, demineralization for plant re-use, or discharge.

4.2.5.

All dewatering and solidification/stabilization will be PERFORMED by either utility site personnel or by on-site vendors or will be PACKAGED and SHIPPED to an off-site vendor low-level radwaste processing facility.

RW-AA-100 Revision 7 Page 5 of 9 4.2.6, Dry Active Waste (DAW) will be HANDLED and PROCESSED per the following:

1.

DAW will be COLLECTED and SURVEYED and may be SORTED for compactable and non-compactable wastes.

2.

"DAW may be packaged in containers to facilitate on-site pre-compaction and/or off-site vendor contract requirements

3.

DAW items may be SURVEYED for release onsite or offsite when applicable.

4.

Contaminated filter cartridges will be PLACED into a HIC or will be ENCAPSULATED in an in-situ liner for disposal or SHIPPED to an offsite waste processor in drums, boxes or steel liners per the vendor site criteria for processing and disposal.

4.2.7.

Filtering devices using pre-coat media may be USED for the removal of suspended solids from liquid waste streams. The pre-coat material or cartridges from these devices may be routinely REMOVED from the filter vessel and discharged to a Filter Sludge Tank or Liner/HIC. Periodically, the filter sludge may be DISCHARGED to the vendor processing system for waste treatment onsite or PACKAGED in containers for shipment to offsite vendor for volume reduction processing.

4.2.8.

Activated hardware stored in the Spent Fuel Pools will be PROCESSED periodically using remote handling equipment and may then be PUT into a container for shipment or storage 4.2.9.

High Integrity Containers (HIC):

1.

For Barnwell disposal vendors who supply HIC's to the station shall PROVIDE a copy of the HIC Certificate of Compliance, which details specific limitations on use of the HIC.

2.

For Disposal at Clive vendors who supply HIC's to the station shall PROVIDE a copy of the HIC Certificate of Conformance, which details specific limitations on use of the HIC.

3.

Vendors who supply HIC's to the station shall PROVIDE a handling procedure, which establishes guidelines for the utilization of the HIC. These guidelines serve to protect the integrity of the HIC and ensure the HIC is handled in accordance with the requirements of the Certificate of Compliance or Certificate of Conformance.

4.2.10.

Lubricants and oils contaminated as a consequence of normal operating and maintenance activities may be PROCESSED on-site (by incineration, for oils meeting 10CFR20.2004 and applicable state requirements, or by an approved vendor process) or SHIPPED offsite (for incineration or other acceptable processing method).

4.2.11.

Former in-plant systems GE or Stock Drum Transfer Cart and Drum Storage Areas may be USED for higher dose DAW storage at Clinton, Dresden, Quad Cities, Braidwood and Byron.

RW-AA-100 Revision 7 Page 6 of 9 4.2.13 Certain waste, including flowable solids from holding pond, oily waste separator, cooling tower basin and emergency spray pond, may be disposed of onsite under the provisions of 1 OCFR20.2002 permit. Specific requirements associated with the disposal shall be incorporated into station implementing procedures. (CM-2) 4.3.

Burial Site Requirements 4.3.1.

Waste sent directly to burial shall COMPLY with the applicable parts of 49CFR171-172, 10CFR61, 10CFR71, and the acceptance criteria for the applicable burial site.

4.4.

Shipping and Inspection Requirements 4.4.1.

All shipping/storage containers shall be INSPECTED, as required by station procedures, for compliance with applicable requirements (Department Of Transportation (DOT), Nuclear Regulatory Commission (NRC), station, on-site storage, and/or burial site requirements) prior to use.

4.4.2.

Containers of solidified liquid waste shall be INSPECTED for solidification quality and/or dewatering requirements per the burial site, offsite vendor acceptance, or station acceptance criteria, as applicable.

4.4.3.

Shipments sent to an off site processor shall be INSPECTED to ensure that the applicable processor's waste acceptance criteria are being met.

4.5.

Inspection and Corrective Action 4.5.1.

Inspection results that indicate non-compliance with applicable NRC, State, vendor, or site requirements shall be IDENTIFIED and TRACKED through the Corrective Action Program.

4.5.2.

Administrative controls for preventing unsatisfactory waste forms from being released for shipment are described in applicable station procedures. If the provisions of the Process Control Program are not satisfied, then SUSPEND shipments of defectively packaged radioactive waste from the site. (CM-1) 4.5.3.

If freestanding water or solidification not meeting program requirements is observed, then samples of the particular series of batches shall be TAKEN to determine the cause. Additional samples shall be TAKEN, as warranted, to ensure that no freestanding water is present and solidification requirements are maintained.

4.6.

Procedure and Process Reviews 4.6.1.

The Exelon Nuclear Process Control Program and changes to it (other than editorial/minor changes) shall be REVIEWED and APPROVED in accordance with the station procedures, plant-specific Technical Specifications (Tech Spec),

Technical Requirements Manual (T&RM), Operation Requirements Manual (ORM),

as applicable, for the respective station and LS-AA-106. Changes to the Licensees Controlled Documents, UFSAR, ORM, or TRM are controlled by the provisions of 10CFR 50.59.

RW-AA-1000 Revision 7 Page 7 of 9 4.6.2.

Any changes to the PCP shall be reviewed to determine if reportability is required in the Annual Radiological Effluent Release Report (ARERR). The Radwaste Specialist shall ensure correct information is SUBMITTED to the ODCM program owner prior to submittal of the ARERR.

4.6.3.

Station processes, cask manual procedures as applicable to your station, or other vendor waste processing/operating procedures shall be approved per RM-AA-1 02-1006. Procedures related to waste manifests, shipment inspections, and container activity determination are CONTROLLED by Radiation Protection Standard Procedures (RP-AA-600 Series).

1.

Site waste processing IS CONTROLLED by site operating procedures.

2.

Liquid processed by vendor equipment shall be DONE in accordance with vendor procedures.

4.7.

Waste Types, Point of Generation, and Processinq Method Methods of processing and individual vendors may CHANGE due to changing financial and regulatory options. The table below is a representative sample. It is not intended be all encompassing.

AVAILABLE WASTE WASTE STREAM POINTS OF GENERATION POEING ME PROCESSING METHODS Bead Resin Systems - Fuel Pool, Condensate, Dewatering, solidification to an Reactor Water Cleanup, Blowdown, unstable/stable state Equipment Drain, Chemical and Volume Control Systems, Floor Drain, Maximum Recycle, Blowdown, Boric Free Release to a Land Fill Acid Recycling System, Vendor Supplied Processing Systems, and Portable Demin System Powdered Resin Systems - (Condensate System, Floor Dewatering, solidification to an Drain/Equipment Drain filtration, Fuel unstable/stable state Pool)

Thermal Processing Concentrated Waste Waste generated from Site Solidification to an unstable/stable Evaporators resulting typically from the state Floor Drain and Equipment Drain Thermal Processing Systems ThermalProcessing Sludge Sedimentation resulting from various Dewatering, solidification to an sumps, condensers, tanks, cooling unstable/stable state tower, emergency spray pond, holding Thermal Processing pond, and oily waste separators..

Evaporation on-site or at an offsite processor On-site disposal per 10CFR20.2002 I permit

RW-AA-100 Revision 7 Page 8 of 9 AVAILABLE WASTE WASTE STREAM POINTS OF GENERATION PROCESSING METHODS Filter cartridges Systems - Floor/Equipment Drains, Dewatering, solidification to an Fuel Pool; cartridge filters are typically unstable/stable state generated from clean up activities Processed by a vendor for volume within the fuel pool, torus, etc.

reduction Dry Active Waste Paper, wood, plastic, rubber, glass, Decon/Sorting for Free Release, metal, and etc. resulting from daily Compaction/Super-compaction plant activities.

Thermal Processing by Incineration or glass vitrification Sorting for Free Release Metal melting to an ingot Contaminated Oil Oil contaminated with radioactive Solidification unstable state materials from any in-plant system.

Thermal Processing by Incineration Free Release for recycling Drying Bed Sludge Sewage Treatment and Waste Water Free release to a landfill or burial Treatment Facilities Metals See DAW See DAW Irradiated Hardware Fuel Pool, Reactor Components Volume Reduction for packaging efficiencies

5.

DOCUMENTATION 5.1.1.

Records of reviews performed shall be retained for the duration of the unit operating license. This documentation shall contain:

1.

Sufficient information to support the change together with the appropriate analyses or evaluations justifying the change, and

2.

A determination which documents that the change will maintain the overall conformance of waste products to Federal (10CFR61 and the Branch Technical Position), State, or other applicable requirements, including applicable burial site criteria.

6.

REFERENCES 6.1.

Technical Specifications:

6.1.1.

The details contained in Current Tech Specs (CTS) or Improved Technical Specifications (ITS), as applicable, in regard to the Process Control Program (PCP),

are to be relocated to the Licensee Controlled Documents. Some facilities have elected to relocate these details into the Operational Requirements Manual (ORM).

Relocation of the description of the PCP from the CTS or ITS does not affect the safe operation of the facility. Therefore, the relocation details are not required to be in the CTS or the ITS to provide adequate protection of the public health and safety.

RW-AA-100 Revision 7 Page 9 of 9 6.2.

Writers'

References:

6.2.1.

Code Of Federal Regulations: 10 CFR Part 20, Part 61, Part 71, 49 CFR Parts 171-172 6.2.2.

Low Level Waste Licensing Branch Technical Position On Radioactive Waste Classification, May 1983 6.2.3.

Technical Position on Waste Form (Revision 1), January 1991 6.2.4.

Branch Technical Position on Concentration Averaging and Encapsulation, January 1995 6.2.5.

Regulatory Guide 1.21 6.2.6.

I.E. Circular 80.18, 10CFR 50.59 Safety Evaluation for Changes to Radioactive Waste Treatment Systems 6.3.

User References 6.3.1.

Quality Assurance Program 6.3.2.

LS-AA-106 6.3.3.

RM-AA-102-1006 6.3.4.

RP-AA-600 Series 6.3.5.

CY-AA-1 70-2000, Annual Radioactive Effluent Release Report 6.4.

Station Commitments:

6.4.1.

Peach Bottom CM-1, T03819, Letter from G.A. Hunger, Jr., dated Sept. 29,94, transmitting TSCR 93-16 (Improved Technical Specifications).

6.4.2.

Limerick CM-2, T03896, 10CFR20.2002 permit granted to Limerick via letter dated July 10, 1996.

7.

ATTACHMENTS '- None

ML101250324

Contents

Text

Subject:

Reference:

Attachment:

2.2. Solidification

2.3. Stabilization

2.5. Dewatering

2.7. Encapsulation

References:

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ML101250324

Text

Subject:

Reference:

Attachment:

2.2. Solidification

2.3. Stabilization

2.5. Dewatering

2.7. Encapsulation

References:

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