ML081220280

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Radiation Dose Assessment Report No. 23, January 1, 2007 Through December 31, 2007
ML081220280
Person / Time
Site: Peach Bottom  Constellation icon.png
Issue date: 04/25/2008
From: Grimes J
Exelon Nuclear
To:
Document Control Desk, Office of Nuclear Reactor Regulation
References
Download: ML081220280 (57)


Text

Exelon, Peach Bottom Atomic Power Station www.exeloncorp.com 1848 Lay Road Nuclear Delta, PA 17314 April 25, 2008

)

U.S. Nuclear Regulatory Commission Document Control Desk Washington, DC 20555-0001 Peach Bottom Atomic Power Station Unit Nos.

2 and 3 Facility Operating License Nos.

DPR-44 and DPR-56 NRC Docket Nos.

50-277 and 50-278

SUBJECT:

Radiation Dose Assessment Report No.

23 January 1, 2007 through December-31, 2007 Enclosed is the Radiation Dose Assessment Report No.

23, January 1, 2007, through December 31, 2007, for Peach Bottom Atomic Power Station Unit Nos.

2 and 3.

This report is being submitted in accordance with the reporting requirement-s, of Peach Bottom ODCMS Sections 3.8.E.2 and 3.10*.3 applicable during the reporting period.

There are no commitments contained in this letter.

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

Sincerely, Jose h P. Grimes, Site Vice President Peach Bottom Atomic Power Station JPG/LJL/MT/bcb Enclosure ccn 08-2 cc:

S.

J. Collins, Administrator, Region I, US NRC G. F. Wunder, Project Manager, US NRC F.

Bower, US NRC Senior Resident Inspector, PBAPS A4 i7&5~

PEACH BOTTOM ATOMIC POWER STATION UNIT NOS. 2 & 3 DOCKET NOS. 50-277 AND 50-278 ISFSI DOCKET NO. 72-29 RADIATION DOSE ASSESSMENT REPORT NO. 23 JANUARY 1, 2007 THROUGH DECEMBER 31, 2007 SUBMITTED TO THE UNITED STATES NUCLEAR REGULATORY COMMISSION PURSUANT TO FACILITY OPERATION LICENSES DPR-44 & DPR-56 PREPARED BY Nuclear Peach Bottom Atomic Power Station Delta, PA 17314

Peach Bottom Atomic Power Station 2007 Radiation Dose Assessment Report (Page Intentionally Left Blank)

Peach Bottom Atomic Power Station 2007 Radiation Dose Assessment Report TABLE OF CONTENTS Section Title Page I

Executive Summary I

II Introduction 3

III Peach Bottom Liquid And Gaseous Radwaste 3

Effluents IV Land Use Survey 3

V Hydrology And Meteorology 3

VI Liquid And Gaseous Pathway Dose Models 5

VII Calculated Annual Doses 9

VIII Environmental Monitoring Changes 14 IX ISFSI Doses 14 X

40CFR190 Doses 14 XI Conclusions 14 Xll References 15 APPENDIX A - Meteorological Data 17 APPENDIX B-ENVIRONMENTAL MONITORING 45 CHANGES i

Peach Bottom Atomic Power Station 2007 Radiation Dose Assessment Report (Page Intentionally Left Blank) ii

Peach Bottom Atomic Power Station 2007 Radiation Dose Assessment Report I.

EXECUTIVE

SUMMARY

In accordance with the reporting requirements of Peach Bottom Offsite Dose Calculation Manual Specifications (ODCMS) Sections 3.8.E.2 and 3.10.3, this report summarizes the radiation doses due to the radioactive effluent releases from Peach Bottom Atomic Power Station Units 2 and 3 for the period January 1, 2007 through December 31, 2007.

The 2007 calculated doses were compared to the appropriate ODCMS and Appendix I Design Objective limits (Table I-1). The maximum offsite total body dose, due to liquid releases was 1.89 E-02 mrem. The maximum offsite total body dose, due to gaseous releases was 2.06E-01 mrem.

TABLE I-1 COMPARISON OF THE 2007 CALCULATED DOSES RESULTING FROM PBAPS EFFLUENT RELEASES TO ODCMS LIMITS MAXIMUM ODCMS AND APPENDIX DOSE

% of A I DESIGN OBJECTIVE CATEGORY DOSE PATHWAY FROM ANNUAL LIMITS PBAPS A

I.

II.

Liquid Effluents

a.

Dose to total body from all pathways

b.

Dose to any organ from all pathways

c.

Total quantity of radioactive material, except tritium and dissolved gases Gaseous Effluents *

a.

Gamma air dose

b.

Beta air dose

c.

Dose to total body of an individual

d.

Dose to skin of an individual

e.

Dose to any organ (thyroid) from all pathways

f.

Total quantity of iodine-131 1.89E-02 0.32%

2.44E-02 0.12%

1.72E-01 1.72%

6 mrem 20 mrem 10 Ci 2.91 E-01 5.61 E-02 2.06E-01 1.46%

0.14%

2.06%

20 mrad 40 mrad 10 mrem 30 mrem 30 mrem 2.73E-01 0.91%

5.48E+00 18.27%

8.34E-03 0.42%

2Ci S10CFR50 Appendix I specifies dose from noble gases only for Category II (a, b, c and d).

PBAPS doses presented for Category II (c and d) items include noble gas and particulate components.

1

Peach Bottom Atomic Power Station 2007 Radiation Dose Assessment Report The PBAPS radioactive releases and the doses that were conservatively calculated were well within all applicable Radioactive Effluent Technical Specifications, ODCMS, 10CFR50 Appendix I design objective dose limits.

Therefore, we conclude that doses from PBAPS releases were within 10CFR72.104 and 40CFR190 limits of 25 mrem - total body, 75 mrem - thyroid and 25 mrem - any other organ to a real individual.

2

Peach Bottom Atomic Power Station 2007 Radiation Dose Assessment Report II.

INTRODUCTION Peach Bottom Atomic Power Station is located on the western shore of Conowingo Pond in York County, Pennsylvania. The station, two boiling water reactors (U2 - 3,514 MWt, U3 - 3,514 MWt), was described in the Updated Final Safety Analysis Report (Ref. 2). Conowingo Pond was the receiving stream for liquid radwaste effluents.

Detailed discussion of the methodology utilized in the report has been provided in a previous report (Ref. 1). Report No. 14 discussed that all future reports will be calculating doses using a bounding analysis (Ref. 6).

Ill.

PEACH BOTTOM LIQUID AND GASEOUS RADWASTE EFFLUENTS The releases of radioactive material in liquid and gaseous effluents from PBAPS were reported in the Peach Bottom Atomic Power Station Effluent Release Report No. 50 (Ref. 3) per ODCMS 3.10.2.

IV.

PEACH BOTTOM LAND USE SURVEY A dairy pasture survey was performed in 2007, which determined the milk-producing animal (cow or goat) closest to PBAPS in each sector per ODCMS 3.8.E.2.

V.

HYDROLOGY AND METEOROLOGY A.

Hydrology Travel times and dilution factors were determined based on the daily Conowingo Pond flows in 2007. Daily Pond flows were reviewed to determine a mean monthly Pond flow. Each daily flow value was assigned to one of three Pond flow regimes (Ref. 4). The resulting daily travel times and dilution factors were then averaged to determine a monthly mean travel time and dilution factor for nearest receptor location, 1,500 feet below the discharge (Table V-i). The annual average of 2.2 hours2.314815e-5 days <br />5.555556e-4 hours <br />3.306878e-6 weeks <br />7.61e-7 months <br /> travel time and 1.5 dilution factor were used for dose calculations for this receptor.

3

Peach Bottom Atomic Power Station 2007 Radiation Dose Assessment Report TABLE V-1 Month TRAVEL TIMES AND DILUTION FACTORS FOR RECEPTOR LOCATION-1500 FEET BELOW THE PBAPS DISCHARGE, 2007 Travel Time Hours Dilution Factor January February March April May June July August September October November December 1.6 4.2 1.6 1.5 2.3 11.6 11.6 8.9 12.9 8.5 3.1 1.8 1.8 1.7 1.6 2.0 1.4 1.4 1.4 1.4 1.5 1.7 1.8 1.8 B.

Meteorology Appendix A details the 2007 meteorology affecting the atmospheric dispersion and the deposition of radionuclides from PBAPS gaseous effluent releases. This meteorology was used in the calculation of doses, due to radioactive effluents from PBAPS Units 2 and 3 offgas stack and roof vents.

Regulatory Guide 1.23, Onsite Meteorological Programs, requires meteorological instruments be inspected and serviced at a frequency which will assure at least a 90% data recovery. ANSI/ANS 3.11-2000, Determining Meteorological Information at Nuclear Power Sites, requires a 90 percent joint data recovery for atmospheric stability, wind speed and direction at levels that represent potential release points. The data 4

Peach Bottom Atomic Power Station 2007 Radiation Dose Assessment Report recovery for Tower 2 75 ft. level was 99.6% and for Tower 2 320 ft. level was 99.6%.

VI.

LIQUID AND GASEOUS PATHWAY DOSE MODELS A.

Liquid Dose Model The maximum annual doses to individuals in unrestricted areas that could result from the liquid effluent releases from PBAPS were calculated according to the guidelines in USNRC Regulatory Guide 1.109 (Ref.5) and the models described therein. NRC computer code, LADTAP, was used to perform these dose calculations.

The liquid release pathways that were considered in making these calculations included drinking water, aquatic foods, shoreline, swimming, and boating. All pathways were calculated using the equations and dose factors provided in the LADTAP computer code.

A bounding dose analysis method was used to calculate total body, organ, and skin doses due to liquid releases, assuming that all pathways (i.e.,

drinking water, aquatic foods, shoreline usage, swimming, and boating) existed at the receptor location-I,500 feet below the plant discharge (Figure VI-1). The highest usage factors determined for Conowingo Pond were used for each pathway for conservatism. Table VI-1 below indicates the bounding usage factors for this location. The shoreline width factor was also set at 0.2, the highest factor in Conowingo Pond.

Table VI-1 Bounding Usage Factors for Receptor Location 1500 feet below the Plant Discharge Factor Adult Teen Child Infant Eating Fish (kg/yr) 21 16 6.9 0

Drinking Water (I/yr) 730 510 510 330 Shoreline Use (hr/yr) 325 325 14 0

Swimming (hr/yr) 280 280 0

0 Boating (hr/yr) 325 325 67 0

B.

Gaseous Pathway Model The maximum annual doses to individuals in unrestricted areas that could result from the gaseous radioactive effluents from PBAPS were calculated according to the guidelines in USNRC Regulatory Guide 1.109 (Ref.5) and the models described therein. NRC computer code, GASPAR, was used to perform these dose calculations.

5

Peach Bottom Atomic Power Station 2007 Radiation Dose Assessment Report The annual average X/Q, depleted X/Q and D/Q values were computed for gaseous radioactive effluents from the Unit 2 and Unit 3 off-gas stack and roof vents, using the dispersion methodologies of USNRC Regulatory Guide 1.111 (Ref. 7).

Using GASPAR, two bounding dose calculations were performed for the receptor locations with the highest X/Q from the Unit 2 and Unit 3 roof vents (154A, 1,300 feet E) and from the Unit 2 and Unit 3 off-gas stack (2068A, 14,520 feet N) (Figures VI-1 and VI-2, respectively). Gaseous release pathways considered included external radiation from the air and ground, inhalation and ingestion of vegetation, meat, and cow's milk. The inhalation and ingestion pathways were evaluated for the adult, teenager, child, and infant age groups. To assure that this analysis was conservative, it was assumed that all pathways existed at these two locations.

In addition to the bounding dose analysis calculation, an analysis for determining the doses from gaseous radioactive effluents to members of the public due to their activities inside the site boundary during 2006 was completed to comply with ODCMS Section 3.10.3. For purposes of this report, the security checkpoint (114A) located 1,300 feet N of the PBAPS Unit 2 and Unit 3 roof vents was chosen (Figure VI-1). This on-site location was used for measuring inhalation, plume and ground shine doses to the National Guardmen and State Police. Continuous occupancy was assumed.

Approximately 127 Ci of unidentified gaseous radioactive effluent activity released from PBAPS in 2007 were assigned to Kr-88 for calculating the Gamma Air, Beta Air and Plume doses. Kr-88 has the highest dose factor for gamma air dose, which is normally limiting, therefore the analysis remains conservative.

6

Peach Bottom Atomic Power Station 2007 Radiation Dose Assessment Report FIGURE VI-1 Locations Where The Maximum Exposed Individuals Were Evaluated For Doses Resulting From Radioactive Effluent Releases From PBAPS Unit 2 and Unit 3 Roof Vents and From Liquid Radwaste Discharges, 2007 7

Peach Bottom Atomic Power Station 2007 Radiation Dose Assessment Report FIGURE VI-2 Locations Where The Maximum Exposed Individual Was Evaluated For Doses Resulting From Radioactive Releases From PBAPS Unit 2 and Unit 3 Off-Gas Stack, 2007 8

Peach Bottom Atomic Power Station 2007 Radiation Dose Assessment Report VII.

CALCULATED ANNUAL DOSES A.

Liquid Releases The annual doses for the maximum exposed organ in the adult, teenager, child, and infant age categories was calculated at the highest receptor location, 1,500 feet below the discharge (Table VII-1). The maximum doses were as follows:

MAXIMUM PERCENT OF 10CFR50 DOSE PATHWAY CALCULATED APPENDIX I DOSE (mrem)

DESIGN OBJECTIVE ADULT TOTAL BODY 1.89E-02 0.32%

ADULT GI-LLI 2.44E-02 0.12%

B.

Gaseous Releases The annual offsite doses to all organs through all pathways by age group were calculated at the two locations with the highest annual average X/Q value for the Unit 2 and Unit 3 roof vents and off-gas stack releases. The two locations were 1,320 feet E of the PBAPS Unit 2 and Unit 3 roof vents (Table VII-2) and 14520 feet N of the PBAPS Unit 2 and Unit 3 off-gas stack (Table V1l-3). A review of the calculated doses indicated that the offsite location where a person would receive the largest calculated total body, skin and organ doses was 1320 feet E of the PBAPS Unit 2 and Unit 3 roof vents. Therefore, doses to other geographical areas would be less.

The maximum calculated doses were as follows:

MAXIMUM PERCENT OF ODCM AND DOSE PATHWAY CALCULATED 10CFR50 APPENDIX I DOSE DESIGN OBJECTIVE Teenager Thyroid 1.72E+00 5.73%

Infant Thyroid 5.48E+00 18.27%

Child Thyroid 3.17E+00 10.57%

Gamma Air Dose 2.91 E-01 1.46%

Beta Air Dose 5.61 E-02 0.14%

C.

Non-Occupational Activity The location where a person would receive the largest calculated total body dose from exposure to PBAPS gaseous radioactive effluent releases due to non-occupational activities inside the site boundary was at the Security checkpoint, approximately 1,300 feet N of the PBAPS Unit 2 and Unit 3 roof vents. Assuming continuous occupancy, the calculated total body and skin doses were 1.07E-01 mrem and 1.46E-01 mrem, respectively (Table VII-4).

9

Peach Bottom Atomic Power Station 2007 Radiation Dose Assessment Report Table VII-1 CALCULATED MAXIMUM ANNUAL DOSES DUE TO LIQUID RADWASTE RELEASES AT 1500 FEET DOWNSTREAM OF PEACH BOTTOM DISCHARGE, 2007 SKIN BONE LIVER T.BODY THYROID KIDNEY LUNG GI-LLI ADULT FISH 4.96E-03 1.27E-02 6.25E-03 3.44E-06 6.40E-03 4.41E-04 2.44E-02 DRINKING 1.27E-04 6.21E-04 5.26E-04 5.41E-05 2.01E-04 7.99E-05 3.66E-03 SHORELINE 2.22E-02 1.89E-02 1.89E-02 1.89E-02 1.89E-02 1.89E-02 1.89E-02 1.89E-02 SWIMMING 1.53E-04 1.53E-04 1.53E-04 1.53E-04 1.53E-04 1.53E-04 1.53E-04 BOATING 8.88E-05 8.88E-05 8.88E-05 8.88E-05 8.88E-05 8.88E-05 8.88E-05 TOTAL 2.22E-02 2.42E-02 3.25E-02 2.59E-02 1.92E-02 2.57E-02 1.97E-02 4.72E-02 SKIN BONE LIVER T.BODY THYROID KIDNEY LUNG GI-LLI TEENAGER FISH 4.95E-03 1.27E-02 5.38E-03 3.03E-06 6.19E-03 5.34E-04 1.67E-02 DRINKING 1.18E-04 5.59E-04 4.66E-04 3.89E-05 1.70E-04 6.81E-05 2.32E-03 SHORELINE 2.22E-02 1.89E-02 1.89E-02 1.89E-02 1.89E-02 1.89E-02 1.89E-02 1.89E-02 SWIMMING 1.53E-04 1.53E-04 1.53E-04 1.53E-04 1.53E-04 1.53E-04 1.53E-04 BOATING 8.88E-05 8.88E-05 8.88E-05 8.88E-05 8.88E-05 8.88E-05 8.88E-05 TOTAL 2.22E-02 2.42E-02 3.24E-02 2.50E-02 1.92E-02 2.55E-02 1.97E-02 3.82E-02 SKIN BONE LIVER T.BODY THYROID KIDNEY LUNG GI-LLI CHILD FISH 5.77E-03 1.05E-02 4.87E-03 2.98E-06 4.88E-03 4.29E-04 5.72E-03 DRINKING 3.26E-04 1.06E-03 1.10E-03 7.72E-05 3.1OE-04 1.29E-04 1.88E-03 SHORELINE 9.55E-04 8.12E-04 8.12E-04 8.12E-04 8.12E-04 8.12E-04 8.12E-04 8.12E-04 SWIMMING BOATING 1.83E-05 1.83E-05 1.83E-05 1.83E-05 1.83E-05 1.83E-05 1.83E-05 TOTAL 9.55E-04 6.91E-03 1.24E-02 6.78E-03 8.92E-04 6.OOE-03 1.37E-03 8.41E-03 SKIN BONE LIVER T.BODY THYROID KIDNEY LUNG GI-LLI INFANT FISH 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.OOE+00 0.OOE+00 0.00E+00 DRINKING 3.22E-04 1.28E-03 1.12E-03 8.22E-05 2.89E-04 1.37E-04 1.26E-03 SHORELINE 0.00E+00 0.00E+00 0.00E+00 0.00E+00 0.OOE+00 0.00E+00 0.OOE+00 0.OOE+00 SWIMMING BOATING TOTAL 0.00E+00 3.22E-04 1.28E-03 1.12E-03 8.22E-05 2.89E-04 1.37E-04 1.26E-03 10

Peach Bottom Atomic Power Station 2007 Radiation Dose Assessment Report TABLE VII-2 ANNUAL DOSES"1 ' TO ALL ORGANS BY PATHWAY AT LOCATION OF HIGHEST CALCULATED TOTAL BODY DOSE DUE TO RADIOACTIVE EFFLUENT RELEASES FROM PEACH BOTTOM UNIT 2 AND UNIT 3 ROOF VENTS, 2007 LOCATION 154A - 1,320 FEET, EAST ANNUAL BETA AIR DOSE =

ANNUAL GAMMA AIR DOSE =

5.61E-02 MILLRADS 2.91E-01 MILLRADS PATHWAY T.BODY GI-TRACT BONE LIVER KIDNEY THYROID LUNG SKIN PLUME 1.97E-01 1.97E-01 1.97E-01 1.97E-01 1.97E-01 1.97E-01 1.97E-01 2.72E-01 GROUND 1.25E-03 1.25E-03 1.25E-03 1.25E-03 1.25E-03 1.25E-03 1.25E-03 1.48E-03 VEGET ADULT 7.49E-04 1.65E-03 8.98E-03 8.82E-04 1.50E-03 2.83E-01 4.06E-07 O.OOE+00 TEEN 1.14E-03 2.02E-03 1.48E-02 1.37E-03 2.33E-03 3.92E-01 7.69E-07 O.OOE+00 CHILD 2.30E-03 1.58E-03 3.57E-02 2.33E-03 3.78E-03 7.59E-01 1.17E-06 O.OOE+00 MEAT ADULT 3.97E-05 9.56E-05 1.85E-04 5.32E-05 8.55E-05 1.63E-02 4.61E-08 O.OOE+00 TEEN 3.07E-05 5.46E-05 1.54E-04 4.32E-05 6.98E-05 1.18E-02 4.37E-08 O.OOE+00 CHILD 4.55E-05 3.01E-05 2.87E-04 5.72E-05 8.87E-05 1.78E-02 5.13E-08 O.OOE+00 COW MILK ADULT 2.84E-04 1.74E-04 5.73E-04 4.27E-04 7.29E-04 1.35E-01 2.32E-07 O.OOE+00 TEEN 4.13E-04 2.35E-04 1.04E-03 7.58E-04 1.30E-03 2.14E-01 4.80E-07 O.OOE+00 CHILD 7.73E-04 1.88E-04 2.52E-03 1.32E-03 2.16E-03 4.25E-01 7.38E-07 O.OOE+00 INFANT 1.46E-03 1.88E-04 4.94E-03 3.23E-03 3.76E-03 1.03E+00 1.34E-06 O.OOE+00 GOATMILK ADULT 1.02E-03 7.33E-04 2.67E-03 1.74E-03 2.97E-03 5.52E-01 1.13E-06 O.OOE+00 TEEN 1.70E-03 9.96E-04 4.86E-03 3.09E-03 5.31E-03 8.75E-01 2.33E-06 O.OOE+00 CHILD 3.19E-03 8.05E-04 1.18E-02 5.40E-03 8.82E-03 1.74E+00 3.58E-06 O.OOE+00 INFANT 6.02E-03 8.04E-04 2.32E-02 1.32E-02 1.54E-02 4.22E+00 6.48E-06 O.OOE+00 INHAL ADULT 3.68E-05 6.65E-05 8.28E-05 8.55E-05 1.48E-04 1.92E-02 1.64E-04 O.OOE+00 TEEN 4.88E-05 7.31E-05 1.16E-04 1.18E-04 2.04E-04 2.45E-02 2.70E-04 O.OOE+00 CHILD 5.50E-05 3.55E-05 1.57E-04 1.16E-04 1.92E-04 2.92E-02 2.35E-04 Q.OOE+00 INFANT 3.96E-05 1.37E-05 1.16E-04 1.09E-04 1.27E-04 2.68E-02 2.04E-04 O.OOE+00 TOTAL ADULT 2.OOE-01 2.01E-01 2.11E-01 2.01E-01 2.04E-01 1.20E+00 1.98E-01 2.73E-01 TEEN 2.02E-01 2.02E-01 2.19E-01 2.04E-01 2.07E-01 1.72E+00 1.99E-01 2.73E-01 CHILD 2.05E-01 2.01E-01 2.49E-01 2.07E-01 2.13E-O1 3.17E+00 1.98E-01 2.73E-01 INFANT 2.06E-01 1.99E-01 2.27E-01 2.15E-01 2.18E-01 5.48E+00 1.98E-01 2.73E-01 (1) Includes the corresponding dose due to radioactive effluent releases from Unit 2 and Unit 3 Off-Gas Stack 11

Peach Bottom Atomic Power Station 2007 Radiation Dose Assessment Report TABLE VII-3 ANNUAL DOSES(1) TO ALL ORGANS BY PATHWAY AT LOCATION OF HIGHEST CALCULATED TOTAL BODY DOSE DUE TO RADIOACTIVE EFFLUENT RELEASES FROM PEACH BOTTOM UNIT 2 AND UNIT 3 OFF-GAS STACK, 2007 LOCATION 2068A - 14520 FEET, NORTH ANNUAL BETA AIR DOSE =

ANNUAL GAMMA AIR DOSE =

2.14E-03 MILLRADS 8.69E-03 MILLRADS PATHWAY T.BODY GI-TRACT BONE LIVER KIDNEY THYROID LUNG SKIN PLUME 5.88E-03 5.88E-03 5.88E-03 5.88E-03 5.88E-03 5.88E-03 5.90E-03 8.42E-03 GROUND 4.26E-05 4.26E-05 4.26E-05 4.26E-05 4.26E-05 4.26E-05 4.26E-05 5.02E-05 VEGET ADULT 2.81E-05 8.OOE-05 4.27E-04 2.82E-05 4.48E-05 8.36E-03 2.49E-07 O.OOE+00 TEEN 4.25E-05 9.81E-05 7.05E-04 4.38E-05 6.99E-05 1.16E-02 4.72E-07 O.OOE+00 CHILD 8.74E-05 7.72E-05 1.71E-03 7.47E-05 1.14E-04 2.24E-02 7.21E-07 O.OOE+00 MEAT ADULT 1.45E-06 4.03E-06 8.74E-06 1.85E-06 2.63E-06 4.81E-04 2.86E-08 O.OOE+00 TEEN 1.08E-06 2.35E-06 7.25E-06 1.50E-06 2.15E-06 3.49E-04 2.71E-08 O.OOE+00 CHILD 1.56E-06 1.33E-06 1.35E-05 1.98E-06 2.72E-06 5.26E-04 3.18E-08 O.OOE+00 COW MILK ADULT 8.30E-06 6.11E-06 2.31E-05 1.39E-05 2.19E-05 3.99E-03 1.47E-07 O.OOE+00 TEEN 1.33E-05 8.26E-06 4.18E-05 2.47E-05 3.91E-05 6.32E-03 3.04E-07 O.OOE+00 CHILD 2.41E-05 6.61E-06 1.02E-04 4.30E-05 6.50E-05 1.25E-02 4.67E-07 O.OOE+00 INFANT 4.50E-05 6.87E-06 1.95E-04 1.03E-04 1.13E-04 3.05E-02 8.45E-07 O.OOE+00 GOATMILK I

ADULT 3.47E-05 2.59E-05 1.11E-04 5.73E-05 8.96E-05 1.63E-02 7.15E-07 O.OOE+00 TEEN 5.52E-05 3.53E-05 2.02E-04 1.02E-04 1.60E-04 2.58E-02 1.48E-06 O.OOE+00 CHILD 1.OOE-04 2.84E-05 4.93E-04 1.77E-04 2.66E-04 5.11E-02 2.27E-06 O.OOE+00 INFANT 1.87E-04 2.85E-05 9.46E-04 4.24E-04 4.62E-04 1.24E-01 4.11E-06 O.OOE+00 INHAL ADULT 1.23E-06 3.03E-06 3.29E-06 2.78E-06 4.76E-06 6.23E-04 9.60E-06 O.OOE+00 TEEN 1.62E-06 3.30E-06 4.59E-06 3.83E-06 6.58E-06 7.93E-04 1.59E-05 O.OOE+00 CHILD 1.82E-06 1.57E-06 6.21E-06 3.77E-06 6.18E-06 9.43E-04 1.38E-05 O.OOE+00 INFANT 1.30E-06 6.03E-07 4.48E-06 3.52E-06 4.08E-06 8.66E-04 1.24E-05 O.OOE+00 TOTAL ADULT 6.OOE-03 6.04E-03 6.50E-03 6.03E-03 6.09E-03 3.57E-02 5.95E-03 8.47E-03 TEEN 6.04E-03 6.07E-03 6.88E-03 6.1OE-03 6.20E-03 5.08E-02 5.96E-03 8.47E-03 CHILD 6.14E-03 6.04E-03 8.25E-03 6.22E-03 6.38E-03 9.34E-02 5.96E-03 8.47E-03 INFANT 6.16E-03 5.96E-03 7.07E-03 6.45E-03 6.50E-03 1.61E-01 5.96E-03 8.47E-03 (1) Includes the corresponding dose due to radioactive effluent releases from Unit 2 and Unit 3 Roof Vents 12

Peach Bottom Atomic Power Station 2007 Radiation Dose Assessment Report TABLE VII-4 ANNUAL TOTAL BODY AND ORGAN DOSES DUE TO NON-OCCUPATIONAL ACTIVITIES INSIDE THE PEACH BOTTOM SITE BOUNDARY, 2007 LOCATION 114A - SECURITY CHECKPOINT - 1,300 FEET, NORTH ANNUAL BETA AIR DOSE =

ANNUAL GAMMA AIR DOSE =

3.OOE-02 MILLRADS 1.56E-01 MILLRADS PATHWAY T.BODY GI-TRACT BONE LIVER KIDNEY THYROID LUNG SKIN PLUME 1.05E-01 1.05E-01 1.05E-01 1.05E-01 1.05E-01 1.05E-01 1.06E-01 1.45E-01 GROUND 8.73E-04 8.73E-04 8.73E-04 8.73E-04 8.73E-04 8.73E-04 8.73E-04 1.03E-03 VEGET ADULT 5.22E-04 1.16E-03 6.30E-03 6.13E-04 1.04E-03 1.97E-01 3.81E-07 O.OOE+00 TEEN 7.94E-04 1.42E-03 1.04E-02 9.51E-04 1.62E-03 2.72E-01 7.22E-07 O.OOE+00 CHILD 1.60E-03 1.11E-03 2.51E-02 1.62E-03 2.63E-03 5.27E-01 1.10E-06 O.OOE+00 MEAT ADULT 2.77E-05 6.68E-05 1.30E-04 3.71E-05 5.94E-05 1.13E-02 4.34E-08 O.OOE+00 TEEN 2.14E-05 3.82E-05 1.08E-04 3.01E-05 4.85E-05 8.20E-03 4.11E-08 O.OOE+00

-CHILD 3.17E-05 2.11E-05 2.01E-04 3.98E-05 6.16E-05 1.24E-02 4.83E-08 O.OOE+00 COW MILK I

ADULT 1.72E-04 1.21E-04 4.OOE-04 2.97E-04 5.06E-04 9.39E-02 2.20E-07 O.OOE+00 TEEN 2.87E-04 1.63E-04 7.24E-04 5.27E-04 9.03E-04 1.49E-01 4.55E-07 O.OOE+00 CHILD 5.37E-04 1.31E-04 1.76E-03 9.19E-04 1.50E-03 2.95E-01 6.99E-07 O.OQE+00 INFANT 1.01E-03 1.31E-04 3.45E-03 2.25E-03 2.61E-03 7.17E-01 1.26E-06 Q.OOE+00 GOATMILK I

ADULT 7.08E-04 5.1OE-04 1.87E-03 1.21E-03 2.07E-03 3.83E-01 1.07E-06 O.OOE+00 TEEN 1.18E-03 6.94E-04 3.40E-03 2.15E-03 3.68E-03 6.07E-01 2.21E-06 O.OQE+00 CHILD 2.21E-03 5.61E-04 8.28E-03 3.75E-03 6.13E-03 1.20E+00 3.39E-06 O.QOE+00 INFANT 4.18E-03 5.60E-04 1.62E-02 9.17E-03 1.07E-02 2.93E+00 6.14E-06 O.OOE+00 INHAL ADULT 1.97E-05 3.56E-05 4.43E-05 4.57E-05 7.90E-05 1.03E-02 8.78E-05 O.OOE+00 TEEN 2.61E-05 3.91E-05 6.18E-05 6.30E-05 1.09E-04 1.31E-02 1.44E-04 O.OOE+00 CHILD 2.94E-05 1.90E-05 8.38E-05 6.21E-05 1.03E-04 1.56E-02 1.26E-04 O.OOE+00 INFANT 2.11E-05 7.33E-06 6.19E-05 5.80E-05 6.77E-05 1.43E-02 1.09E-04 O.OOE+00 TOTAL ADULT 1.07E-01 1.08E-01 1.15E-01 1.08E-01 1.10E-01 8.01E-01 1.07E-01 1.46E-01 TEEN 1.08E-01 1.08E-01 1.21E-01 1.10E-01 1.12E-01 1.16E+00 1.07E-01 1.46E-01 CHILD 1.10E-01 1.08E-01 1.41E-01 1.12E-01 1.16E-01 2.16E+00 1.07E-01 1.46E-01 INFANT 1.11E-01 1.07E-01 1.26E-01 1.17E-01 1.19E-01 3.77E+00 1.07E-O1 1.46E-01 13

Peach Bottom Atomic Power Station 2007 Radiation Dose Assessment Report VIII.

ENVIRONMENTAL MONITORING CHANGES Milk Changes Milk Farm Station 0 went out of business 7/1/2007, Station 0 is in the SW sector at 12,241 feet. The milk farm was replaced by milk farm U in the SSW sector at 11,414 feet. Proposed changes to the ODOM are found in Appendix B including updated Table VII.A-1/Figure VII.A.2 Milk Farm Station A went out of business, Station A is in the WSW sector at 30,493 feet. The milk farm was replaced by milk farm T in the W sector at 34,584 feet. Proposed changes to the ODCM are found in Appendix B including updated Table VII.A-1/Figure VII.A.3 o Sediment o Plant produced activity (C0-60) were detected in the sediment downstream of the liquid discharge point. This is approximately 1500 feet from the discharge point. The probable cause is the leaks from the RHR heat exchangers to HPSW. C0-60 was not detected for additional samples taken at greater distances from the discharge point to determine the point of maximum deposition in the sediment. Further sampling will be required to determine the point of maximum deposition and required changes to the Environmental Monitoring program.

IX.

ISFSI DOSES The Independent Spent Fuel Storage Installation (ISFSI) had no liquid, gaseous or particulate releases in 2007. Direct radiation measurements made at the site boundary indicated no increase in ambient radiation levels from the ISFSI operation. Therefore, the annual doses were within 10CFR72.104 limits of 25 mrem - total body, 75 mrem - thyroid and 25 mrem - any other organ to a real individual.

X.

40CFRI90 DOSES The annual dose equivalent to a real individual from all urnanium fuel cycle sources within 8 kilometers were as follows:

MAXIMUM PERCENT OF DOSE PATHWAY CALCULATED ODCMS 3.8.D.1 DOSE (mrem)

TOTAL BODY 3.20E-02 0.13%

THYROID 2.92E-01 0.39%

CRITICAL ORGAN 5.76E-02 0.23%

14

Peach Bottom Atomic Power Station 2007 Radiation Dose Assessment Report X1.

CONCLUSIONS Using conservative methodologies (i.e. bounding analysis with the highest annual average X/Q receptor locations with all pathways available) has shown that the calculated doses were small and well within ODCMS, 10CFR50 Appendix I design objectives, 10CFR72.104, and 40CFR190 dose limits.

15

Peach Bottom Atomic Power Station 2007 Radiation Dose Assessment Report XII.

REFERENCES

1.

Philadelphia Electric Company, "Peach Bottom Atomic Power Station Units 2 and 3, Radiation Dose Assessment Report No. 5", January 1, 1989 through December 31, 1989.

2.

PECO Energy Company, "Peach Bottom Atomic Power Station Units 2 and 3, Updated Final Safety Analysis Report."

3.

Exelon Nuclear, "Peach Bottom Atomic Power Station Units 2 and 3, Radioactive Effluent Release Report No. 50", January 1, 2007 through December 31, 2007.

4.

Philadelphia Electric Company, "Peach Bottom Atomic Power Station Units 2 and 3, Radioactive Effluent Dose Assessment", September 30, 1976.

5.

U. S. Nuclear Regulatory Commission, Regulatory Guide 1.109, "Calculation of Annual Doses to Man from Routine Releases of Reactor Effluent for the Purpose of Evaluating Compliance with 10 CFR Part 50, Appendix I", Revision 1, October, 1977.

6.

PECO Energy Company, "Peach Bottom Atomic Power Station Units 2 and 3, Radiation Dose Assessment Report No. 14", January 1, 1998 through December 31, 1998.

7.

U. S. Nuclear Regulatory Commission, Regulatory Guide 1.111, "Methods for Estimating Atmospheric Transport and Dispersion of Gaseous Effluents in Routine Releases from Light-Water-Cooled Reactors",

Revision, 1, July 1977.

16

Peach Bottom Atomic Power Station 2007 Radiation Dose Assessment Report APPENDIX A - METEOROLOGICAL DATA The meteorology at the PBAPS site was evaluated by instruments on a meteorological tower on the bluff overlooking the plant and was described in the UFSAR (Ref. 2). All data were summarized using the Pasquill-Gifford system.

The following three tables present the annual summary of hourly meteorological data joint frequency distributions of wind speed, wind direction, and atmospheric stability at the three elevations of concern.

Table Description APP-A-1 Primary Meteorological Tower - 33' Elevation APP-A-2 Primary Meteorological Tower - 320' Elevation 17

Peach Bottom Atomic Power Station 2007 Radiation Dose Assessment Report (Page Intentionally Left Blank) 18

Peach Bottom Atomic Power Station 2007 Radiation Dose Assessment Report TABLE APP-A-1 PRIMARY METEOROLOGICAL TOWER FOOT LEVEL 19

Peach Bottom Atomic Power Station 2007 Radiation Dose Assessment Report (Page Intentionally Left Blank) 20

Peach Bottom Atomic Power Station 2007 Radiation Dose Assessment Report Peach Bottom Nuclear Station January-March, 2007 33 ft.

Wind Speed and Direction 150Ft-33Ft Delta-T (F)

Number of Observations =

1932 Values are Percent Occurrence WIND DIRECTION CLASSES-ENE E

ESE SE SSE S

SSW SW WSW W

WNW NW NNW TOTAL SPEED CLASS TOTAL EU MU C SU A

N L SS M MS ES 0.00 N

NNE NE STABILITY CLASSES-----------

EU MU SU N

SS MS ES 3

3 EU MU SU N

SS MS ES 29.24 4

7 EU MU SU N

SS MS ES 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.57 0.16 0.05 0.05 0.10 0.00 0.00 0.31 0.57 0.00 0.00 0.26 0.05 0.16 1.09 0.16 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 0.10 0.05 0.26 0.41 0.72 0.16 0.00 0.10 0.00 0.05 0.41 0.41 0.05 0.00 0.10 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 0.26 0.16 0.10 0.36 1.35 0.05 0.00 0.10 0.00 0.00 0.05 0.31 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 0.72 0.21 0.00 0.26 1.09 0.26 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 0.00 0.00 0.00 0.00 0.31 0.26 0.05 0.62 1.24 0.62 0.36 0.26 0.00 0.00 0.10 0.05 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 0.10 0.10 0.52 1.29 0.57 0.67 0.41 0.05 0.10 0.26 0.21 0.10 0.00 0.05 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 0.26 0.00 0.47 0.88 0.16 0.00 0.36 0.31 0.16 0.52 0.88 0.00 0.00 0.10 0.05 0.00 0.00 0.21 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 0.47 0.83 0.05 0.16 0.10 0.31 0.16 1.45 1.40 0.00 0.00 0.00 0.10 0.05 0.26 0.10 0.00 0.00 0.00 0.00 0.00 0.10 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.05 0.05 0.31 0.57 0.26 0.05 0.21 0.10 0.05 0.72 1.35 0.00 0.00 0.78 0.36 0.16 0.26 0.47 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 0.05 0.31 0.57 0.10 0.05 0.10 0.05 0.05 0.52 0.57 0.05 0.00 0.41 0.05 0.05 0.05 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 0.36 0.36 0.21 0.31 0.26 0.16 0.05 0.72 1.09 0.36 0.05 0.10 0.00 0.10 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 0.21 0.67 0.52 0.72 0.26 0.05 0.00 0.57 2.69 0.41 0.16 0.36 0.16 0.16 0.31 0.16 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 0.52 0.72 0.47 0.16 0.21 0.36 0.16 1.81 3.62 0.10 0.05 1.19 0.67 0.31 2.17 0.62 0.00 0.00 0.31 0.16 0.00 0.26 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 0.52 0.72 0.36 0.26 0.47 0,26 0.21 2.33 1.66 0.05 0.00 2.02 2.02 0.88 5.54 0.21 0.00 0.00 0.05 0,31 0.05 1.04 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.36 0.57 0.47 0.05 0.16 0.52 0.10 1.50 0.98 0.05 0.00 0.62 1.35 0.36 2.85 0.00 0.00 0.00 0.26 0.57 0.26 0.83 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.05 0.00 0.05 0.16 0.36 0.10 0.10 0.10 0.16 0.05 0.88 0.78 0.00 0.00 0.16 0.47 0.05 0.98 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 1.50 1.09 0.67 6.42 12.11 4.40 3.05 3.21 2.33 1.14 12.16 16.56 1.29 0.26 6.16 5.28 2.28 13.66 2.07 0.00 0.00 0.62 1.04 0.31 2.33 0.00 0.00 0.00 0.00 1.50 3.21 6.16 0.62 0.00 1.09 2.33 5.28 1.04 0.00 0.67 1.14 2.28 0.31 0.00 6.42 12.16 13.66 2.33 0.00 12.11 16.56 2.07 0.00 0.00 4.40 1.29 0.00 0.00 0.00 3.05 0.26 0.00 0.00 36.96 EU MU 8 SU N

1 SS 2 MS ES 29.45 EU 1 MU 3 SU N

1 SS 8 MS ES 4.30 21

Peach Bottom Atomic Power Station 2007 Radiation Dose Assessment Report Peach Bottom Nuclear Station 33 ft. Wind Speed and Direction January-March, 2007 15OFt-33Ft Delta-T (F)

SPEED CLASS TOTAL Eu 1 MD 9 SD N

2 SS 4 MS ES

0. 05 EU G MU T SD N

2 SS 4 MS ES WIND DIRECTION CLASSES N

NNE NE EWE E

ESE SE SSE S

SSW SW WSW N

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

SD N

SS MS_

ES MEW NW NEW TOTAL ED MU 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 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 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 0.05 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 0.00 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 0.05 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. 05 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 TOT 3.52 2.90 2.74 2.64 3.99 100.00 Wind Direction by Stability N

NNE NE ENE E

4.50 4.35 5.54 5.80 3.11 4.24 7.40 13.87 19.05 11.85 4.50 100.00 11.49 9.73 4.40 34.63 30.75 5.69 3.31 ESE SE SSE S

SSW SW WSW W

WNW NW NNW TOTAL

-STABILITY CLASSES-0.36 0.05 0.16 1.97 0.88 0.05 0.05 0.31 0.05 0.31 0.83 1.19 0.21 0.00 0.36 0.16 0.10 0.41 1.66 0.05 0.00 0.72 0.21

0. 00 0.26 1.09 0.26 0.10 0.57 0.26 0.05 0.72 1.29 0.72 0.36 0.47 0.16 0.21 0.83 1.50 0.67 0.67 0.47 0.62 0.16 0.98 1.97 0.18 0.00 0.10 0.41 0.21 2.28 2.33 0.05 0.16 0.98 0.52 0.26 1.35 2.38 0.26 0.05 0.52 0.10 0.16 0.88 1.24 0.16 0.05 0.36 0.16 0.16 1.19 1.45 0.57 0.36 0.62 0.21 0.16 1.09 3.52 0.93 0.88 1.71 1.19 0.47 4.76 4.97 0.57 0.21 2.59 2.59 1.14 9.47 2.59 0.41 0.26
1. 04 2.43 0.72 5.54 1.55 0.52
0. 05 0.31 0.62 0.16 2.07 1.14 0.10 0.10 11.49 9.73 4.40 34.63 30.75 5.69 3.31 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 SSE 5

SSW SW WSW N

WNW NW NNW TOTAL

-WIND SPEED CLASSES-0.00 0.83 0.98 1.71 0.00 0.00 0.00 0.00 1.71 1.04 0.16 0.00 0.00 0.00 0.00 2.28 0.47 0.00 0.00 0.00 0.00 0.00 2.64

0. 00
0. 00
0. 00 0.00 0.00 0.00 3.47 0.52 0.00 0.00 0.00 0.00 0.00 3.26
1. 14 0.10 0.00 0.00 0.00 0.00 1.76 2.23 0.36 0.00 0.00 0.00 0.00 1.50 3.42 0.52 0.10 0.00 0.00 0.00 1.29 2.43 2.02 0.05 0.00 0.00 0.00 1.09 1.35 0.67 0.00 0.00 0.00 0.00 1.24 2.69 0.31 0.00 0.00 0.00 0.00 2.12 4.14 1.14 0.00 0.00 0.00 0.00 1.86 6.31 4.97 0.72
0. 00
0. 00 0.00 1.92 4.97 10.66 1.45 0.05 0.00 0.00 1.45 3.31 5.18 1.92 0.00 0.00 0.00 0.83 1.97 1.66 0.05 0.00 0.00 0.00 29.24 36.96 29.45 4.30 0.05 0.00 C AL M 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 22

Peach Bottom Atomic Power Station 2007 Radiation Dose Assessment Report Peach Bottom Nuclear Station 33 ft.

Wind Speed and Direction April-June, 2007 15OFt-33Ft Delta-T (F)

Number of Observations -

2082 Values are Percent Occurrence SPEED WIND DIRECTION CLASSES


--------- STABILITY CLASS N

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW NW NNW TOTAL EU MU SU N

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

SS MS ES C

A L

M EU MU SU N

SS 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

. MU 3 SU N

1 SS 8 MS ES 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.19 0.10 0.00 0.91 0.86 0.10 0.05 0.67 0.48 0.19 1.54 0.91 0.00 0.00 0.10 0.24 0.00 0.53 0.29 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 0.48 0.34 0.24 1.01 0.67 0.05 0.00 0.34 0.10 0.05 0.43 0.53 0.00 0.00 0.10 0.05 0.05 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 0.72 0.43 0.14 0.62 0.38 0.05 0.00 0.00 0.00 0.00 0.05 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 1.15 0.34 0.19 0.58 0.29 0.14 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 0.00 0.00 0.00 1.25 0.53 0.14 0.53 0.62 0.19 0. 14 0.19 0.00 0.00 0.24 0.43 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 0.58 0.10 0.05 0.24 0.58 0.19 0.05 0.34 0.10 0.00 0.10 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 0.19 0.05 0.05 0.29 1.39 0.05 0.00 0.53 0.10 0.05 0.38 0.48 0.00 0.00 0.05 0.00 0.00 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 0.05 0.14 0.00 0.38 2.11 0.19 0.00 0.67 0.24 0.00 0.58 1.54 0.00 0.00 0.24 0.05 0.00 0.24 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 0.10 0.00 0.05 0.19 1.54 0.19 0.00 0.82 0.62 0.19 1.01 1.54 0.05 0.00 0.24 0.05 0.05 0.14 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 0.05 0.00 0.34 1.39 0.82 0.00 0.14 0.14 0.10 0.29 0.72 0.19 0.05 0.05 0.10 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 0.05 0.00 0.00 0.19 0.82 0.77 0.77 0.10 0.14 0.10 0.00 1.06 0.14 0.10 0.19 0.10 0.00 0.10 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 0.29 0.96 1.59 1.73 0.00 0.05 0.10 0.24 1.30 1.06 0.62 0.00 0.00 0.00 0.19 0.19 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 0.05 0.00 0.38 1.39 1.15 1.10 0.10 0.05 0.14 0.62 2.59 1.01 0.10 0.10 0.38 0.14 0.53 0.38 0.00 0.00 0.00 0.00 0.00 0.10 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.10 0.05 0.00, 0.34 1.54 1.10 0.43 0.05 0.48 0.14 1.10 1.25 0.19 0.05 0.43 0.34 0.19 1.59 0.24 0.00 0.00 0.05 0.10 0.00 0.53 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

0. 10 0.10 0.00 0.58 1.39 1.15 0.34 0.14 0.19 0.10 0.62 2.07 0.14 0.00 0.24 0.29 0.14 0.34 0.05 0.00 0.00 0.00 0.00 0.00 0.62 0.19 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.05 0.05 0.10 0.67 1.06 0.43 0.00 1.34 1.01 0.38 2.40 1.87 0.14 0.00 0.62 0.24 0.19 1.34 0.19 0.00 0.00 0.05 0.00 0.00 0.48 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 5.00 5.00 2.31 0.96 7.54 17.00 8.17 4.61 5.48 5.48 3.70 1.54 9.61 16.43 2.93 0.91 2.35 2.35 1.83 0.77 5.19 1.44 0.05 0.00 0.10 0.10 0.10 0.00 1.73 0.19 0.00 0.00 0.00 2.31 3.70 1.83 0.10 0.00 0.96 1.54 0.77 0.00 0.00 7.54 9.61 5.19 1.73 0.00 17.00 16.43 1.44 0.19 0.00 8.17 2.93 0.05 0.00 0.00 4.61 0.91 0.00 0.00 TOTAL 0.00 45.58 40.59 11.62 2.11 23

Peach Bottom Atomic Power Station 2007 Radiation Dose Assessment Report Peach Bottom Nuclear Station 33 ft.

Wind Speed and Direction April-June, 2007 15OFt-33Ft Delta-T (F)

SPEED CLASS N

NNE NE ENE WIND DIRECTION CU E

ESE SE SSE S

SSW SW WSW W

WNW STABILITY CLASSES----------

EU MU SU N

SS MS ES TOTAL 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 0.00 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 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 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 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.05 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 0.00 0.00 0.00 0.05 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 0.05 0.00 0.05 0.00 0.00 0.00 0.00 0.00 0.10 0.00 TOT 7.16 4.47 2.45 2.74 4.27 2.40 3.70 6.44 6.82 4.42 4.66 8.36 10.33 10.28 8.89 12.63 100.00 12.92 7.93 3.27 24.11 35.11 11.14 5.52 100.00 Wind Direction by Stability N

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW NW NNW TOTAL

-STABILITY CLASSES-0.96 0.82 0.19 2.98 2.07 0.10 0.05 0.91 0.48 0.34 1.49 1.20 0.05 0.00 0.72 0.43 0.14 0.67 0.43 0.05 0.00 1.20 0.34 0.19 0.58 0.29 0.14 0.00 1.44 0.53 0.14 0.77 1.06 0.19 0.14 0.91 0.19 0.05 0.34 0.67 0.19 0.05 0.77 0.14 0.10 0.77 1.87 0.05 0.00 0.96 0.43 0.00 1.20 3.65 0.19 0.00 1.15 0.67 0.29 1.34 3.12 0.24 0.00 0.19 0.29 0.10 0.67 2.11 1.01 0.05 0.34 0.24 0.10 0.29 1.92 0.91 0.86 0.00 0.05 0.10 0.72 2.45 2.69 2.35 0.19 0.48 0.29 1.63 4.37 2.16 1.20 0.62 0.96 0.34 3.55 3.03 1.30 0.48 0.48 0.58 0.24 2.21 3.75 1.30 0.34 2.07 1.30 0.67 4.90 3.12 0.58 0.00 12.92 7.93 3.27 24.11 35.11 11.14 5.52 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 SSE S

SSW SW WSW W

WNW NW NNW TOTAL

-WIND SPEED CLASSES-0.00 2.21 3.79 1.15 0.00 0.00 0.00 0.00 2.79 1.44 0.24 0.00 0.00 0.00 0.00 2.35 0.10 0.00 0.00 0.00 0.00 0.00 2.69 0.05 0.00 0.00 0.00 0.00 0.00 3.41 0.86 0.00 0.00 0.00 0.00 0.00 1.78 0.62 0.00 0.00 0.00 0.00 0.00 2.02 1.54 0.14 0.00 0.00 0.00 0.00 2.88 3.03 0.53 0.00 0.00 0.00 0.00 2.07 4.23 0.53 0.00 0.00 0.00 0.00 2.59 1.63 0.19 0.00 0.00 0.00 0.00 2.59 1.63 0.43 0.00 0.00 0.00 0.00 4.56 3.36 0.43 0.00 0.00 0.00 0.00 4.08 4.61 1.54 0.10 0.00 0.00 0.00 3.55 3.27 2.79 0.67 0.00 0.00 0.00 3.65 3.27 1.06 0.82 0.10 0.00 0.00 2.35 7.16 2.59 0.53 0.00 0.00 0.00 45.58 40.59 11.62 2.11 0.10 0.00 C A L M 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 24

Peach Bottom Atomic Power Station 2007 Radiation Dose Assessment Report Peach Bottom Nuclear Station 320 ft.

Wind Speed and Direction April-June, 2007 316Ft-33Ft Delta-T (F)

Number of Observations 2170 Values are Percent Occurrence ON CLASSES


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

S SSW SW WSW W

WNW NW NNW TOTAL EU MU SU N

SS MS ES TOTAL SPEED WIND DIRECTI CLASS N

NNE NE ENE E

ESE SE SSE EU MU C SU 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 0.00 0.00 0.00 0.14 0.09 0.14 0.00 0.00 0.00 0.09 0.55 0.69 0.37 0.14 0.00 0.00 0.14 0.92 0.88 0.18 0.14 0.00 0.00 0.23 0.65 0.78 0.09 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.28 0.09 0.05 0.05 0.00 0.05 0.05 0.60 0.46 0.23 0.09 0.00 0.00 0.09 0.83 1.38 0.28 0.14 0.05 0.05 0.00 0.32 0.14 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.05 0.41 0.14 0.09 0.00 0.05 0.05 0.05 0.32 0.14 0.05 0.05 0.09 0.05 0.05 0.51 0.60 0.09 0.14 0.09 0.05 0.00 0.23 0.05 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.05 0.00 0.05 0.41 0.05 0.05 0.00 0.28 0.28 0.23 0.51 0.14 0.09 0.09 0.37 0.09 0.05 1.11 0.37 0.05 0.00 0.00 0.00 0.00 0.05 0.14 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.05 0.41 0.14 0.00 0.00 0.37 0.32 0.28 1.15 0.18 0.05 0.00 0.14 0.05 0.05 0.46 0.14 0.09 0.00 0.00 0.00 0.00 0.14 0.14 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.14 0.09 0.09 0.00 0.28 0.18 0.28 0.97 0.32 0.09 0.00 0.23 0.18 0.23 0.65 0.55 0.00 0.00 0.00 0.05 0.05 0.74 0.23 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.28 0.09 0.00 0.00 0.00 0.05 0.00 0.51 0.74 0.00 0.14 0.37 0.23 0.14 0.83 0.55 0.00 0.00 0.18 0.14 0.09 0.41 0.09 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.09 0.18 0.09 0.00 0.00 0.05 0.05 0.32 0.88 0.09 0.05 0.00 0.14 0.14 0.51 0.55 0.05 0.00 0.00 0.09 0.14 0.28 0.32 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 0.18 0.09 0.00 0.00 0.05 0.05 0.41 0.92 0.28 0.05 0.00 0.14 0.28 1.06 1.75 0.14 0.00 0.00 0.18 0.14 1.15 0.92 0.05 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.14 0.14 0.00 0.05 0.00 0.00 0.00 0.55 0.65 0.05 0.05 0.00 0.05 0.18 0.65 1.20 0.23 0.00 0.00 0.05 0.00 0.37 0.83 0.09 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.09 0.00 0.00 0.05 0.00 0.00 0.05 0.28 0.78 0.14 0.09 0.00 0.00 0.14 0.28 0.83 0.18 0.00 0.00 0.14 0.05 0.14 0.74 0.09 0.09 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.18 0.05 0.05 0.00 0.00 0.05 0.28 0.23 0.05 0.05 0.00 0.00 0.00 0.46 0.69 0.23 0.09 0.00 0.00 0.00 0.23 0.69 0.55 0.05 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.14 0.09 0.00 0.00 0.00 0.00 0.00 0.37 0.14 0.14 0.09 0.00 0.00 0.05 0.60 0.60 0.14 0.09 0.00 0.05 0.14 1.01 1.06 0.23 0.14 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.14 0.09 0.00 0.05 0.00 0.00 0.00 0.09 0.23 0.09 0.09 0.00 0.00 0.05 0.97 0.60 0.23 0.00 0.00 0.09 0.18 1.20 1.61 0.60 0.05 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.09 0.14 0.05 0.09 0.00 0.00 0.00 0.32 0.37 0.32 0.00 0.00 0.05 0.09 1.06 0.92 0.65 0.05 0.00 0.05 0.32 0.83 1.38 0.18 0.05 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.14 0.23 0.00 0.09 0.00 0.00 0.14 0.69 0.55 0.37 0.18 0.00 0.09 0.55 2.44 1.15 0.18 0.28 0.00 0.23 0.51 1.75 0.92 0.09 0.14 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.05 0.00 0.14 2.90 1.94 0.69 0.41 0.97 1.01 1.29 7.93 7.42 2.40 1.15 1.20 1.06 2.21 13.32 12.76 2.72 0.92 0.32 1.15 1.84 9.49 10.05 1.98 0.55 0.00 0.05 0.97 1.20 0.32 0.00 0.00 1.01 1.06 1.15 0.00 0.14 1.29 2.21 1.84 0.00 2.90 7.93 13.32 9.49 0.00 1.94 7.42 12.76 10.05 0.00 0.69 2.40 2.72 1.98 0.00 0.41 1.15 0.92 0.55 0.00 6.13 22.17 34.19 25.39 25

Peach Bottom Atomic Power Station 2007 Radiation Dose Assessment Report Peach Bottom Nuclear Station July-September, 2007 33 ft.

Wind Speed and Direction 15OFt-33Ft Delta-T (F)

Number of Observations

=

2147 Values are Percent Occurrence SPEED WIND DIRECTION CLASSES CLASS N

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW NW NNW TOTAL EU STABILITY CLASSES----------

MU SU N

SS MS ES EU MU C SU A

N L SS M MS ES EU KU SU N

SS MS ES EU MU SU N

SS MS ES EU MU SU N

SS MS ES EU MU SU N

SS MS ES 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.05 0.14 0.09 1.21 2.00 0.19 0.00 0.79 0.79 0.51 1.63 1.72 0.05 0.00 0.09 0.09 0.05 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 0.19 0.23 0.19 0.75 0.56 0.00 0.00 0.05 0.14 0.05 0.05 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 0.47 0.37 0.19 0.79 0.28 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 0.00 0.00 0.47 0.47 0.23 0.65 0.33 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 0.56 0.23 0.09 0.19 0.09 0.09 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 0.65 0.19 0.09 0.28 0.33 0.09 0.00 0.37 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 0.37 0.09 0.05 0.19 1.82 0.19 0.05 0.56 0.19 0.00 0.14 0.51 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 0.14 0.14 0.00 1.21 3.73 0.37 0.05 1.26 0.42 0.28 1.40 3.45 0.14 0.00 0.00 0.00 0.09 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 0.14 0.00 0.19 0.84 4.29 1.02 0.14 1.30 0.56 0.14 1.30 1.68 0.19 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 0.05 0.05 0.23 1.63 1.16 0.28 0.14 0.19 0.19 0.47 0.56 0.09 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 0.05 0.23 0.70 1.26 1.96 0.19 0.37 0.05 0.98 1.30 0.14 0.33 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 0.33 1.12 1.82 4.33 0.00 0.14 0.09 0.47 0.79 0.51 0.75 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 0.09 0.09 0.33 1.54 1.96 1.07 0.00 0.14 0.00 0.05 0.88 0.28 0.33 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 0.28 0.88 1.49 0.37 0.05 0.09 0.14 0.33 0.93 0.33 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 0.09 0.00 0.28 1.02 1.07 0.19 0.05 0.14 0.23 0.65 2.14 0.47 0.00 0.00 0.09 0.05 0.19 0.09 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 0.05 0.00 0.37 1.72 0.37 0.05 0.61 0.93 0.65 2.47 2.28 0.23 0.00 0.05 0.28 0.14 0.33 0.09 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 3.03 3.03 2.14 1.30 8.15 22.03 11.09 8.48 5.36 5.36 4.15 2.33 9.92 16.30 2.42 1.44 0.19 0.19 0.47 0.33 0.56 0.28 0.05 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 2.14 4.15 0.47 0.00 0.00 1.30 2.33 0.33 0.00 0.00 8.15 9.92 0.56 0.00 0.00 22.03 16.30 0.28 0.00 0.00 11.09 2.42 0.05 0.00 0.00 8.48 1.44 0.00 0.00 TOTAL 0.00 56.22 41.92 1.86 0.00 26

Peach Bottom Atomic Power Station 2007 Radiation Dose Assessment Report Peach Bottom Nuclear Station 33 ft.

Wind Speed and Direction July-September, 2007 15OFt-33Ft Delta-T (F)

SPEED CLASS N

NNE NE ENE WIND DIRECTION CLASSES-------------

ESE SE SSE 9

SSW SW WSW STABILITY CLASSES------------

ED MU SU N

55 HS ES TOTAL W

WNW NW NNW TOTAL EU 1 MTU 9 SU N

2 55 4 MS ES ED O 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 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 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 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 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 TOT 9.46 2.24 2.14 2.14 1.26 2.00 4.15 12.72 11.83 5.08 7.59 10.34 6.80 4.89 6.75 10.62 100.00 8.57 6.75 3.96 18.63 38.61 13.55 9.92 100.00 Wind Direction by Stability N

NNE NE ENE E

ESE SE SSE 5

SSW SW WSW W

WNW NW NNW TOTAL

-STABILITY CLASSES-0.93 1.02 0.65 2.84 3.77 0.23 0.00 0.23 0.37 0.23 0.79 0.61 0.00 0.00 0.47 0.42 0.19 0.79 0.28 0.00 0.00 0.47 0.47 0.23 0.65 0.33 0.00 0.00 0.56 0.23 0.09 0.19 0.09 0.09 0.00 1.02 0.19 0.09 0.28 0.33 0.09 0.00 0.93 0.28 0.05 0.33 2.33 0.19 0.05 1.40 0.56 0.37 2.65 7.17 0.51 0.05 1.49 0.56 0.33 2.14 5.96 1.21 0.14 0.14 0.23 0.23 0.70 2.19 1.26 0.33 0.19 0.37 0.09 1.21 2.05 1.40 2.28 0.00 0.14 0.09 0.79 1.91 2.33 5.08 0.00 0.23 0.09 0.37 2.42 2.28 1.40 0.05 0.09 0.14 0.61 1.82 1.82 0.37 0.05 0.33 0.28 1.12 3.26 1.54 0.19 0.65 1.26 0.79 3.17 4.10 0.61 0.05 8.57 6.75 3.96 18.63 38.61 13.55 9.92 Extremely Unstable Moderately Unstable Slightly Unstable Neutral Slightly Stable Moderately Stable Extremely Stable Wind Direction by Wind Speed N

NNE NE ENE H

ESE SE SSE S

SSW SW WSW W

WNEW NW NNW TOTAL

-WIND SPEED CLASSES-0.00 3.68 5.50 0.28 0.00 0.00 0.00 0.00 1.91 0.33 0.00 0.00 0.00 0.00 0.00 2.10 0.05 0.00 0.00 0.00 0.00 0.00 2.14 0.00 0.00 0.00 0.00 0.00 0.00 1.26 0.00 0.00 0.00 0.00 0.00 0.00 1.63 0.37 0.00 0.00 0.00 0.00 0.00 2.75 1.40 0.00 0.00 0.00 0.00 0.00 5.64 6.94 0.14 0.00 0.00 0.00 0.00 6.61 5.17 0.05 0.00 0.00 0.00 0.00 3.40 1.68 0.00 0.00 0.00 0.00 0.00 4.19 3.35 0.05 0.00 0.00 0.00 0.00 7.59 2.75 0.00 0.00 0.00 0.00 0.00 5.08 1.68 0.05 0.00 0.00 0.00 0.00 3.03 1.86 0.00 0.00 0.00 0.00 0.00 2.65 3.68 0.42 0.00 0.00 0.00 0.00 2.56 7.17 0.88 0.00 0.00 0.00 0.00 56.22 41.92 1.86 0.00 0.00 0.00 C AL M

< 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 27

Peach Bottom Atomic Power Station 2007 Radiation Dose Assessment Report Peach Bottom Nuclear Station 33 ft.

Wind Speed and Direction October-December, 2007 15OFt-33Ft Delta-T (F)

Number of Observations -

2146 Values are Percent Occurrence SPEED


WIND DIRECTION CLASSES-----------------------------------

RARTTTTV (T.5O*SS CLASS N

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW NW NNW TOTAL EU MU SU N

SS MS ES EU MU C SU A

N L SS N MS ES EU MU 1 SU N

3 SS MS ES EU MU 4 SU N

7 SS MS ES EU MU a SU N

1 SS 2 MS ES EU I MU 3 SU N

1 SS 8 MS ES 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.09 0.00 0.09 0.79 1.21 0.14 0.09 0.14 0.23 0.19 0.56 1.44 0.00 0.00 0.00 0.00 0.00 0.00 0.09 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 0.09 0.14 0.05 0.98 2.42 0.05 0.09 0.00 0.09 0.00 0.09 0.75 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 0.23 0.19 0.09 0.93 2.24 0.09 0.00 0.00 0.00 0.00 0.00 0.14 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 0.47 0.05 0.09 0.84 1.72 0.14 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 0.00 0.00 0.00 0.00 0.23 0.05 0.00 0.61 1.54 0.19 0.05 0.00 0.00 0.00 0.05 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 0.33 0.09 0.05 0.37 1.58 0.33 0.09 0.09 0.00 0.00 0.19 0.23 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 0.14 0.05 0.00 0.37 2.24 0.33 0.00 0.56 0.09 0.09 0.61 1.82 0.05 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 0.42 1.82 0.47 0.00 0.42 0.37 0.00 0.98 2.56 0.00 0.00 0.00 0.00 0.00 0.09 0.23 0.00 0.00 0.00 0.00 0.00 0.05 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 0.51 2.14 0.33 0.00 0.28 0.33 0.00 1.30 2.10 0.00 0.00 0.05 0.05 0.00 0.19 0.28 0.00 0.00 0.00 0.00 0.00 0.05 0.05 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.05 0.33 1.63 0.65 0.23 0.23 0.09 0.09 0.42 0.47 0.19 0.05 0.05 0.05 0.00 0.14 0.14 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 0.05 0.28 0.89 0.84 0.75 0.09 0.00 0.19 0.28 0.84 0.37 0.42 0.00 0.00 0.00 0.14 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 0.05 0.05 0.28 1.03 1.44 1.07 0.09 0.00 0.19 0.42 1.54 1.21 0.84 0.00 0.00 0.19 0.09 0.05 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 0.05 0.00 0.09 1.40 1.58 0.89 0.05 0.09 0.14 0.79 3.36 1.03 0.14 0.00 0.00 0.05 0.47 1.07 0.00 0.00 0.00 0.00 0.00 0.28 0.51 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.19 0.75 0.51 0.23 0.09 0.23 0.23 0.51 3.12 0.37 0.00 0.00 0.00 0.05 1.12 1.86 0.00 0.00 0.00 0.00 0.00 0.33 0.05 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.05 0.00 0.14 1.72 0.61 0.19 0.00 0.09 0.00 1.35 1.96 0.14 0.00 0.00 0.05 0.28 1.77 0.98 0.00 0.00 0.00 0.00 0.00 0.14 0.09 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.19 0.65 0.42 0.09 0.09 0.33 0.00 0.61 1.68 0.05 0.00 0.00 0.05 0.05 0.79 0.61 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 1.58 1.58 0.70 0.51 7.32 24.98 8.11 3.82 2.14 2.14 1.96 1.12 8.15 22.04 3.40 1.44 0.09 0.09 0.19 0.61 4.80 5.36 0.00 0.00 0.00 0.00 0.00 0.00 0.84 0.84 0.00 0.00 0.00 0.70 1.96 0.19 0.00 0.00 0.51 1.12 0.61 0.00 0.00 0.00 7.32 24.98 8.15 22.04 4.80 5.36 0.84 0.84 0.00 8.11 3.40 0.00 0.00 0.00 3.82 1.44 0.00 0.00 TOTAL 0.00 47.02 40.26 11.04 1.68 28

Peach Bottom Atomic Power Station 2007 Radiation Dose Assessment Report Peach Bottom Nuclear Station 33 ft. Wind Speed and Direction October-December, 2007 15OFt-33Ft Delta-T (F)

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

WIND DIRECTION CLASSES--------------------

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

WNW NW NNW TOTAL EU ND SO N

SS NO ES TOTAL CLASS N

NNE0 NE ENE ESE SE SSE 5

SSW SW WOW W

EU I. ND 9 50 N

2 SS 4 NO ES EU

2 SS 4 NO 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 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 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 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 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 TOT 5.08 4.75 3.91 3.36 2.75 3.36 6.38 7.46 7.64 4.85 5.13 8.57 11.98 9.65 9.55 5.59 100.00 3.82 2.84 2.24 21.11 53.22 11.51 5.27 100.00 wind Direction by Stability N

NNE NE END E

ESE SE SSE S

SSW SW WOW W

WNW NW NNW TOTAL

-STABILITY CLASSES-0.23 0.23 0.28 1.35 2.75 0.14 0.09 0.09 0.23 0.05 1.07 3.17 0.05 0.09 0.23 0.19 0.09 0.93 2.38 0.09 0.00 0.47 0.05 0.09 0.84 1.72 0.14 0.05 0.23 0.05 0.00 0.65 1.58 0.19 0.05 0.42 0.09 0.05 0.56 1.82 0.33 0.09 0.70 0.14 0.09 0.98 4.10 0.37 0.00 0.42 0.37 0.00 1.54 4.66 0.47 0.00 0.33 0.37 0.00 2.05 4.57 0.33 0.00 0.28 0.14 0.14 0.89 2.28 0.84 0.28 0.09 0.00 0.23 0.70 1.72 1.21 1.16 0.09 0.05 0.42 0.79 2.66 2.66 1.91 0.05 0.14 0,19 1.63 6.34 2.61 1.03 0.09 0.23 0.28 2.14 5.78 0.89 0.23 0.00 0.19 0.28 3.40 4.75 0.75 0.19 0.09 0.37 0.05 1.58 2.94 0.47 0.09 3.82 2.84 2.24 21.11 53.22 11.51 5.27 Extremely Unstable Moderately Unstable Slightly Unstable Neutral Slightly Stable Moderately Stable Extremely Stable Wind Direction by Wind Speed N

NNE NE END 9

ESE SE SSE 5

SSW SW WSW N

WNW NW NNW TOTAL

-WIND SPEED CLASSES-0.00 2.42 2.56 0.09 0.00 0.00 0.00 0.00 3.82 0.93 0.00 0.00 0.00 0.00 0.00 3.77 0.14 0.00 0.00 0.00 0.00 0.00 3.36 0.00 0.00 0.00 0.00 0.00 0.00 2.66 0.09 0.00 0.00 0.00 0.00 0.00 2.84 0.51 0.00 0.00 0.00 0.00 0.00 3.12 3.22 0.05 0.00 0.00 0.00 0.00 2.70 4.33 0.33 0.09 0.00 0.00 0.00 2.98 4.01 0.56 0.09 0.00 0.00 0.00 2.89 1.54 0.37 0.05 0.00 0.00 0.00 2.80 2.19 0.14 0.00 0.00 0.00 0.00 3.91 4.29 0.33 0.05 0.00 0.00 0.00 4.01 5.59 1.58 0.79 0.00 0.00 0.00 1.68 4.57 3.03 0.37 0.00 0.00 0.00 2.70 3.54 3.08 0.23 0.00 0.00 0.00 1.35 2.75 1.49 0.00 0.00 0.00 0.00 47.02 40.26 11.04 1.68 0.00 0.00 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 29

Peach Bottom Atomic Power Station 2007 Radiation Dose Assessment Report Peach Bottom Nuclear Station 33 ft.

Wind Speed and Direction January-December, 2007 15OFt-33Ft Delta-T (F)

Number of Observations

=

8307 Values are Percent Occurrenc SPEED WIND DIRECTION CLASSES-----------

CLASS N

NNE NE ENE E

ESE SE SSE S

SSW SW WSW STABILITY CLASSES----------

MU SU N

SS MS ES W

WNW NW NNW TOTAL EU EU MU C SU A

N L SS N 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 ND 3 SU N

1 SS 8 MS ES 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.08 0.06 0.05 0.88 1.08 0.12 0.05 0.43 0.39 0.23 1.02 1.18 0.01 0.00 0.11 0.10 0.05 0.39 0.14 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 0.22 0.19 0.18 0.79 1.11 0.06 0.02 0.12 0.08 0.04 0.24 0.43 0.01 0.00 0.05 0.01 0.01 0.01 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 0.00 0.00 0.42 0.29 0.13 0.69 1.06 0.05 0.00 0.02 0.01 0.00 0.02 0.12 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 0.70 0.26 0.13 0.59 0.85 0.13 0.04 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 0.00 0 00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.59 0.26 0.07 0.48 0.87 0.26 0.13 0.11 0.00 0.00 0.10 0.13 0.02 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 0.40 0.12 0.07 0.35 0.94 0.29 0.19 0.30 0.04 0.02 0.13 0.13 0.02 0.00 0.01 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 0.00 0.00 0.00 0.18 0.11 0.02 0.33 1.60 0.18 0.01 0.51 0.17 0.07 0.41 0.93 0 01 0.00 0.04 0.01 0.00 0.02 0.06 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 0.05 0.07 0.00 0.63 2.15 0.28 0.05 0.63 0.34 0.11 1.10 2.26 0.04 0.00 0.06 0.04 0.04 0.16 0.08 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 0.00 0.06 0.01 0.07 0.47 2.18 0.46 0.05 0.66 0.41 0.10 1.10 1.67 0.06 0.00 0.26 0.11 0.05 0.14 0.19 0.00 0.00 0.00 0.00 0.00 0.02 0.01 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.02 0.04 0.30 1.32 0.70 0.14 0.16 0.12 0.11 0.42 0.58 0.13 0.04 0.12 0.05 0.01 0.06 0.06 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 0.01 0.00 0.02 0.26 0.70 0.78 0.96 0.16 0.17 0.10 0.49 1.07 0.25 0.23 0.07 0.02 0.02 0.08 0.02 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 0.01 0.28 0.95 1.36 2.00 0.08 0.06 0.10 0.42 1.55 0.81 0.60 0.08 0.04 0.08 0.14 0.10 0.01 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 0.05 0.02 0.33 1.28 1.31 0.82 0.08 0.16 0.11 0.79 2.59 0.61 0.16 0.30 0.25 0.12 0.76 0.52 0.01 0.00 0.07 0.04 0.00 0.16 0.13 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.04 0.01 0.00 0.33 0.98 0.88 0.33 0.16 0.26 0.18 1.04 1.75 0.24 0.01 0.58 0.55 0.26 1.97 0.59 0.00 0.00 0.02 0.10 0.01 0.46 0.01 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.02 0.06 0.00 0.34 1.19 0.83 0.19 0.08 0.23 0.11 1.02 1.81 0.20 0.00 0.20 0.42 0.20 1.25 0.29 0.00 0.00 0.06 0.13 0.06 0.39 0.07 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.02 0.02 0.04 0.35 0.96 0.34 0.06 0.54 0.61 0.28 1.60 1.67 0.11 0.00 0.20 0.25 0.11 0.85 0.23 0.00 0.00 0.01 0.00 0.00 0.13 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 2.79 2.79 1.56 0.87 7.38 19.22 8.03 5.04 4.06 4.06 3.05 1.54 9.91 17.88 2.54 1.04 2.09 2.09 1.85 0.96 5.86 2.30 0.02 0.00 0.17 0.17 0.26 0.07 1.19 0.26 0.00 0.00 0.00 1.56 3.05 1.85 0.26 0.00 0.87

1. 54 0.96 0.07 0.00 7.38 9.91 5.86 1.19 0.00 19.22 17.88 2.30 0.26 0.00 8.03 2.54 0.02 0.00 0.00 5.04 1.04 0.00 0.00 TOTAL 0.00 44.90 40.00 13.10 1.96 30

Peach Bottom Atomic Power Station 2007 Radiation Dose Assessment Report Peach Bottom Nuclear Station 33 ft.

Wind Speed and Direction January-December, 2007 150Ft-33Ft Delta-T (F)

SPEED WIND DIRECTION CLASSES


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

NW NNW TOTAL EU MU SU N

SS MS ES TOTAL CLASS N

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW EU 1 NU 9 SU N

2 SS 4 MS ES EU

  • NU 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 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 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 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 0.01 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 0.01 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 0.00 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 0.00 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 0.01 0.00 0.00 0.00 0.00 0.00 0.04 0.00 TOT 6.37 3.60 2.82 2.72 3.03 3.03 4.66 8.11 8.09 4.39 5.44 8.70 10.67 10.76 9.20 8.40 100.00 9.11 6.73 3.44 24.36 39.68 10.59 6.08 100.00 Wind Direction by Stability N

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW NW NNW TOTAL

-STABILITY CLASSES-0.63 0.54 0.33 2.29 2.41 0.13 0.05 0.39 0.29 0.23 1.05 1.55 0.07 0.02 0.45 0.30 0.13 0.71 1.18 0.05 0.00 0.71 0.26 0.13 0.59 0.85 0.13 0.04 0.70 0.26 0.07 0.58 1.00 0.29 0.13 0.71 0.16 0.10 0.49 1.07 0.31 0.19 0.72 0.29 0.10 0.76 2.59 0.19 0.01 0.73 0.45 0.14 1.91 4.51 0.31 0.05 0.99 0.53 0.22 1.73 4.06 0.52 0.05 0.28 0.19 0.16 0.78 1.97 0.83 0.18 0.24 0.19 0.14 0.84 1.79 1.04 1.19 0.17 0.11 0.19 0.84 2.61 2.18 2.60 0.46 0.49 0.25 2.03 4.51 1.94 0.98 0.79 0.93, 0.46 3.80 3.32

2. 12 0.34 0.37 0.84 0.37 3.01 3.37 1.04 0.19 0.78 0.89 0.42 2.94 2.87 0.45 0.06 9.11 6.73 3.44 24.36 39.68 10.59 6.08 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 SSE S

SSW SW WSW W

WNW NW NNW TOTAL

-WIND SPEED CLASSES-0.00 2.32 3.26 0.78 0.00 0.00 0.00 0.00 2.58 0.93 0.20 0.00 0.00 0.00 0.00 2.64 0.18 0.00 0.00 0.00 0.00 0.00 2.71 0.01 0.00 0.00 0.00 0.00 0.00 2.67 0.36 0.00 0.00 0.00 0.00 0.00 2.36 0.65 0.02 0.00 0.00 0.00 0.00 2.43 2.09 0.13 0.00 0.00 0.00 0.00 3.23 4.47 0.37 0.05 0.00 0.00 0.00 3.30 4.00 0.76 0.04 0.00 0.00 0.00 2.53 1.55 0.30 0.01 0.00 0.00 0.00 2.74 2.47 0.23 0.00 0.00 0.00 0.00 4.61 3.62 0.46 0.01 0.00 0.00 0.00 3.80 4.50 1.96 0.40 0.00 0.00 0.00 2.55 3.64 3.96 0.60 0.01 0.00 0.00 2.64 3.45 2.37 0.71 0.02 0.00 0.00 1.79 4.82 1.65 0.14 0.00 0.00 0.00 44.90 40.00 13.10 1.96 0.04 0.00 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 31

Peach Bottom Atomic Power Station 2007 Radiation Dose Assessment Report (Page Intentionally Left Blank) 32

Peach Bottom Atomic Power Station 2007 Radiation Dose Assessment Report TABLE APP-A-2 PRIMARY METEOROLOGICAL TOWER - 320-FOOT LEVEL 33

Peach Bottom Atomic Power Station 2007 Radiation Dose Assessment Report (Page Intentionally Left Blank) 34

Peach Bottom Atomic Power Station 2007 Radiation Dose Assessment Report Peach Bottom Nuclear Station 320 ft.

Wind Speed and Direction January-March, 2007 316Ft-33Ft Delta-T (F)

Number of Observations -

2033 Values are Percent Occurrence SPEED W----------------------------------WIND DIRECTION CLASSES CLASS N

NNE NE ENE B

ESE SE SSE S

SSW SW WSW W

WNW NW NNW TOTAL STABILITY CLASSES-----------

EU MU SU N

SS MS ES TOTAL EU MU C SU A

N L SS N 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 0.00 0.00 0.00 0.00 0.00 0.00 0.05 0.00 0.00 0.00 0.30 0.34 0.00 0.05 0.00 0.00 0.00 0.34 0.59 0.10 0.00 0.00 0.00 0.15 0.84 0.30 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 0.05 0.00 0.00 0.00 0.00 0.25 0.30 0.10 0.00 0.00 0.00 0.00 0.34 0.34 0.00 0.00 0.00 0.00 0.10 0.59 0.25 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.10 0.00 0.00 0.10 0.00 0.00 0.05 0.39 0.20 0.15 0.00 0.10 0.00 0.05 0.30 0.20 0.05 0.00 0.00 0.00 0.00 0.54 0.15 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 0.10 0.00 0.05 0.39 0.10 0.05 0.00 0.15 0.05 0.00 0.54 0.44 0.00 0.05 0.00 0.05 0.05 0.44 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 0.05 0.00 0.00 0.00 0.10 0.15 0.05 0.34 0.25 0.05 0.00 0.00 0.00 0.00 0.15 0.15 0.00 0.00 0.00 0.00 0.00 0.00 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 0.05 0.10 0.00 0.00 0.00 0.05 0.10 0.49 0.49 0.05 0.05 0.25 0.05 0.00 0.49 0.25 0.00 0.00 0.00 0.00 0.00 0.15 0.30 0.05 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.05 0.15 0.05 0.05 0.00 0.05 0.05 0.59 0.39 0.05 0.05 0.20 0.00 0.15 1.08 0.89 0.10 0.00 0.00 0.05 0.00 0.98 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 0.10 0.00 0.05 0.00 0.00 0.00 0.00 0.54 0.39 0.05 0.00 0.00 0.05 0.00 1.13 0.30 0.05 0.00 0.00 0.00 0.00 0.34 0.25 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 0.15 0.05 0.00 0.00 0.00 0.00 0.49 0.64 0.30 0.10 0.00 0.00 0.49 1.67 2.26 0.59 0.15 0.10 0.15 0.39 1.23 1.18 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 0.34 0.30 0.30 0.10 0.00 0.00 0.00 0.39 1.52 1.08 0.44 0.00 0.05 0.10 0.49 0.84 0.05 0.10 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.05 0.00 0.00 0.00 0.00 0.00 0.20 0.74 0.25 0.05 0.00 0.00 0.15 0.74 1.08 0.25 0.15 0.00 0.00 0.10 0.59 0.64 0.15 0.00 0.00 0.00 0.00 0.00 0.00 0.100 0.00 0.00 0.00 0.00 0.05 0.05 0.05 0.00 0.00 0.00 0.05 0.25 0.44 0.10 0.00 0.00 0.00 0.15 0.30 0.69 0.34 0.15 0.00 0.00 0.20 0.44 0.89 0.20 0.05 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 0.34 0.30 0.10 0.00 0.00 0.00 0.15 0.30 0.89 0.30 0.20 0.00 0.00 0.25 1.62 2.31 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 0.05 0.00 0.00 0.00 0.39 0.05 0.30 0.00 0.00 0.00 0.10 0.89 0.79 0.05 0.05 0.00 0.00 0.44 4.23 2.12 0.05 0.05 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.05 0.00 0.10 0.00 0.00 0.00 0.00 0.30 0.10 0.25 0.15 0.00 0.00 0.00 0.79 1.38 0.39 0.20 0.00 0.00 0.15 2.75 1.38 0.05 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.15 0.10 0.00 0.00 0.00 0.00 0.00 0.44 0.10 0.00 0.00 0.00 0.00 0.00 1.57 0.84 0.25 0.05 0.00 0.00 0.15 1.62 0.34 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 0.84 0.59 0.39 0.25 0.20 0.25 0.34 6.05 5.12 2.07 0.54 0.69 0.15 1.23 11.02 12.59 3.54 1.43 0.10 0.30 2.07 16.87 11.02 0.64 0.20 0.20 0.69 0.10 0.00 0.00 0.25 0.15 0.30 0.00 0.00 0.34 1.23 2.07 0.00 0.00 0.84 0.59 6.05 5.12 11.02 12.59 16.87 11.02 0.00 0.39 2.07 3.54 0.64 0.00 0.25 0.54 1.43 0.20 0.00 2.07 14.56 30.64 31.19 35

Peach Bottom Atomic Power Station 2007 Radiation Dose Assessment Report Peach Bottom Nuclear Station 320 ft.

Wind Speed and Direction January-March, 2007 316Ft-33Ft Delta-T (F)

SPEED WIND DIRECTION CLASSES STABILITY CLASSES----------

EU KU SU N

SS MS ES TOTAL CLASS N

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW NW NNW TOTAL EU 1 MU 9 SU N

2 SS 4 MS ES EU

  • MU T SU N

2 SS 4 MS ES 0.00 0.00 0.00 0.49 0.05 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.05 0.05 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 0.05 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 0.00 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 0.05 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 0.15 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 0.05 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.05 0.00 0.00 0.00 0.00 0.05 0.10 0.10 0.00 0.00 0.00 0.00 0.00 0.05 0.10 0.00 0.00 0.00 0.00 0.05 0.00 0.20 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 0.25 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.05 0.05 0.05 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.20 1.03 0.69 0.05 0.00 0.00 0.00 0.00 0.59 0.00 0.00 0.00 0.00 0.05 0.89 5.71 0.44 0.00 0.00 0.00 0.00 0.10 2.02 0.00 0.00 0.00 0.00 0.00 0.00 3.84 0.00 0.00 0.00 0.00 0.00 0.00 2.85 0.00 0.00 0.00 0.00 0.00 0.10 0.49 0.05 0.00 0.00 0.00 0.00 0.00 0.20 0.00 0.00 0.00 0.00 0.00 0.05 1.38 12.10 2.02 0.05 0.00 0.00 0.00 0.00 0.10 5.71 0.15 0.00 0.00 0.05 0.00 1.38 12.10 0.10 5.71 2.02 0.15 0.05 0.00 0.00 0.00 15.59 5.95 TOT 3.59 2.56 2.41 2.56 1.38 2.95 5.16 3.34 10.38 6.39 5.41 4.53 9.35 18.79 14.71 6.49 100.00 0.98 0.74 5.12 52.58 31.48 6.69 2.41 100.00 Wind Direction by Stability N

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW NW NNW TOTAL

-STABILITY CLASSES-0.00 0.00 0.10 0.25 0.00 0.00 0.00 0.10 0.15 0.15 0.10 0.10 1.97 1.28 1.38 1.43 1.28 0.98 0.54 0.54 0.10 0.15 0.20 0.10 0.10 0.00 0.10 0.05 0.10 0.15 0.05 0.54 0.49 0.05 0.00 0.25 0.10 0.10 1.23 1.13 0.10 0.05 0.20 0.10 0.20 2.85 1.52 0.20 0.10 0.00 0.05 0.00 2.16 0.98 0.15 0.00 0.10 0. 15 0.93 3.59 4.43 0.93 0.25 0.00 0.05 0.15 1.23 2.85 1.48 0.64 0.00 0.00 0.25 1.57 2.75 0.64 0.20 0.00 0.00 0.44 1.08 2.12 0.69 0.20 0.00 0.00 0.59 3.94 4.18 0.44 0.20 0.00 0.00 0.05 0.00 1.52 0.15 13.28 10.58 3.39 2.85 0.39 0.79 0.15 0.34 0.00 0.00 0.25 4.48 1.43 0.30 0.05 0.98 0.74 5.12 52.58 31.48 6.69 2.41 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 SSE S

SSW SW WSW W

WNW NW NNW TOTAL

-WIND SPEED CLASSES-0.00 0.05 0.69 1.03 1.28 0.54 0.00 0.00 0.10 0.64 0.69 0.93 0.20 0.00 0.00 0.20 0.79 0.69 0.69 0.05 0.00 0.00 0.05 0.69 1.23 0.59 0.00 0.00 0.00 0.05 0.93 0.30 0.10 0.00 0.00 0.00 0.15 1.23 1.03 0.49 0.05 0.00 0.00 0.30 1.18 2.41 1.03 0.25 0.00 0.00 0.15 0.98 1.52 0.59 0.05 0.05 0.00 0.25 1.52 5.16 3.05 0.25 0.15 0.00 0.05 1.03 3.44 1.62 0.25 0.00 0.00 0.05 1.23 2.36 1.48 0.30 0.00 0.00 0.15 0.84 1.62 1.77 0.15 0.00 0.00 0.05 0.74 1.82 4.18 1.97 0.59 0.00 0.00 0.10 0.15 0.74 0.79 1.87 2.75 6.89 4.33 7.08 3.84 2.12 2.85 0.00 0.25 0.54 2.71 2.16 0.64 0.20 0.00 2.07 14.56 30.64 31.19 15.59 5.95 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 36

Peach Bottom Atomic Power Station 2007 Radiation Dose Assessment Report Peach Bottom Nuclear Station April-June, 2007 320 ft.

Wind Speed and Direction 316Ft-33Ft Delta-T (F)

SPEED CLASS N

NNE NE ENE WIND DIRECTION CLASSES E

ESE BE SSE 9

S9W STABILITY CLASSES----------

W WNW NW NNW TOTAL EU MU SU N

SS MS ES TOTAL SW WSW 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 0.05 0.51 0.05 0.00 0.00 0.00 0.00 0.00 0.05 0.00 0.00 0.00 0.05 0.00 0.05 0.14 0.00 0.00 0.00 0.00 0.00 0.05 0.14 0.00 0.00 0.00 0.14 0.00 0.00 0.05 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 0.05 0.09 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 0.05 0.00 0.00 0.00 0.00 0.00 0.00 0.60 0.28 0.00 0.00 0.00 0.00 0.00 0.05 0.00 0.00 0.00 0.00 0.00 0.00 0.09 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 0.09 0.09 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 0.05 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. 14 0.00 0.14 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.28 0.05 0.05 0.00 0.00 0.00 0.00 0.05 0.00 0.00 0.00 0.00 0.05 0.28 1.06 0.23 0.05 0.00 0.00 0.00 0.05 0.23 0.09 0.00 0.00 0.00 0.00 0.28 1.43 0.23 0.28 0.00 0.00 0.05 0.18 0.97 0.00 0.00 0.00 0.00 0.00 0.00 0.41 0.14 0.00 0.00 0.00 0.00 0.00 0.78 0.09 0.00 0.00 0.00 0.00 0.18 0.83 0.05 0.00 0.00 0.00 0.00 0.05 0.60 0.00 0.00 0.00 0.18 0.18 0.05 1.06 5.58 1.38 0.37 0.00 0.05 0.05 0.05 0.32 2.90 0.18 0.00 0.00 0.05 0.05 1.06 0.32 5.58 2.90 1.38 0.18 0.37 0.00 0.00 0.00 8.62 3.50 TOT 6.87 5.62 3.55 4.56 4.24 6.27 4.93 4.06 8.06 5.35 4.42 4.33 7.10 9.77 8.43 12.44 100.00 2.76 3.32 6.87 42.12 33.73 8.16 3.04 100.00 Wind Direction by Stability N

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW NW NNW TOTAL

-STABILITY CLASSES-0.00 0.00 0.51 2.81 2.49 0.78 0.28 0.09 0.09 0.23 2.30 2.07 0.55 0.28 0.41 0.14 0.14 1.52 0.92 0.23 0.18 0.69 0.37 0.32 2.12 0.78 0.18 0.09 0.51 0.37 0.37 2.21 0.65 0.14 0.00 0.51 0.41 0.55 3.13 1.47 0.18 0.00 0.55 0.41 0.23 2.12 1.47 0.00 0.14 0.00 0.28 0.32 1.20 1.94 0.23 0.09 0.00 0.37 0.55 2.72 3.82 0.55 0.05 0.00 0.09 0.18 1.75 2.i6 0.37 0.09 0.00 0.14 0.37 0.78 2.49 0.41 0.23 0.00 0.00 0.05 1.29 1.84 0.92 0.23 0.00 0.09 0.51 3.41 2.21 0.55 0.32 0.00 0.14 0.69 4.79 2.76 1.20 0.18 0.00 0.09 0.41 3.50 3.04 1.20 0.18 0.00 0.32 1.43 6.45 2.90 0.65 0.69 2.76 3.32 6.87 42.12 33. 73 8.16 3.04 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 SSE S

SSW SW WSW W

WNW NW NNW TOTAL

-WIND SPEED CLASSES-0.00 0.37 1.84 2.26 1.75 0.60 0.05 0.00 0.46 1.47 2.72 0.55 0.23 0.18 0.00 0.69 0.69 1.52 0.41 0.18 0.05 0.00 0.60 1.61 2.03 0.18 0.14 0.00 0.00 0.60 2.35 0.92 0.28 0.05 0.05 0.00 0.32 2.12 1.84 1.06 0.88 0.05 0.00 0.37 1.43 2.12 0.92 0.09 0.00 0.00 0.37 1.43 1.38 0.88 0.00 0.00 0.00 0.28 1.75 3.36 2.44 0.23 0.00 0.00 0.32 1.29 2.30 1.34 0.09 0.00 0.00 0.14 1.34 1.43 1.24 0.28 0.00 0.00 0.28 0.65 1.47 1.52 0.37 0.05 0.00 0.23 0.74 1.47 2.63 1.66 0.37 0.00 0.28 0.51 1.84 3.73 2.21 1.20 0.00 0.37 1.01 2.81 2.81 0.55 0.88 0.00 0.46 1.94 4.70 3.64 1.06 0.65 0.00 6.13 22.17 34.19 25.39 8.62 3.50 C A L M 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 37

Peach Bottom Atomic Power Station 2007 Radiation Dose Assessment Report Peach Bottom Nuclear Station July-September, 2007 320 ft.

Wind Speed and Direction 316Ft-33Ft Delta-T (F)

Number of Observations =

2154 Values are Percent Occurrence SPEED CLASS N

NNE WIND DIRECTION CLASSES-NE ENE E

ESE SE SSE S

SSW SW EU MU C SU A

N L SS N MS ES EU MU 1 SU N

3 SS MS ES EU MU 4 SU N

7 SS MS ES EU MN 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 0.00 0.00 0.00 0.05 0.00 0.09 0.09 0.00 0.00 0.09 0.74 0.37 0.23 0.09 0.00 0.09 0.28 1.49 1.62 0.28 0.28 0.00 0.00 0.14 0.56 1.25 0.28 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.09 0.00 0.00 0.00 0.00 0.00 0.09 0.51 0.79 0.51 0.23 0.05 0.00 0.28 0.93 0.74 0.14 0.05 0.00 0.00 0.05 0.05 0.46 0.09 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.09 0.14 0.05 0.09 0.00 0.00 0.00 0.09 0.88 0.56 0.42 0.05 0.09 0.00 0.05 0.65 0.97 0.19 0.09 0.05 0.00 0.00 0.19 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 0.88 0.05 0.14 0.00 0.19 0.23 0.23 1.11 0.42 0.19 0.19 0.19 0.00 0.00 0.97 0.32 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 0.14 0.37 0.05 0.00 0.00 0.51 0.09 0.46 0.84 0.32 0.14 0.05 0.00 0.00 0.00 0.37 0.14 0.00 0.00 0.00 0.00 0.00 0.23 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 0.32 0.28 0.00 0.00 0.09 0.23 0.19 0.65 0.97 0.05 0.00 0.60 0.05 0.05 0.37 0.28 0.00 0.00 0.00 0.00 0.00 0.05 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 0.05 0.00 0.05 0.00 0.14 0.14 0.46 0.74 0.09 0.00 0.42 0.09 0.28 0.88 1.30 0.09 0.00 0.05 0.05 0.05 0.09 0.28 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.23 0.23 0.05 0.00 0.00 0.05 0.05 0.65 1.25 0.28 0.09 0.14 0.19 0.32 1.16 1.90 0.05 0.00 0.00 0.00 0.05 0.28 1.11 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 0.19 0.19 0.05 0.00 0.00 0.00 1.16 1.35 0.60 0.05 0.05 0.56 0.70 1.58 3.90 0.28 0.05 0.05 0.14 0.00 0.51 1.39 0.09 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.14 0.05 0.14 0.05 0.00 0.00 0.05 0.74 0.97 0.42 0.00 0.00 0.05 0.28 0.79 2.79 0.37 0.05 0.00 0.00 0.05 0.23 0.56

0. 14 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.09 0.14 0.14 0.05 0.00 0.00 0.00 0.46 0.56 0.28 0.28 0.00 0.05 0.09 1.30 0.88 0.42 0.00 0.00 0.00 0.00 0.32 0.37 0.00 0.00 WSW 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.09 0.05 0.14
0. 14 0.00 0.00 0.00 0.56 0.51 0.14 0.05 0.00 0.00 0.00 0.79 0.70 0.46 0.23 0.00 0.00 0.00 0.37 0.32 0.09 0.00 STABILITY CLASSES----------

W WNW NW NNW TOTAL EU MU SU N

SS MS ES 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.05 0.09 0.05 0.00 0.00 0.00 0.42 0.09 0.19 0.14 0.00 0.00 0.00 0.28 0.65 0.79 0.23 0.00 0.00 0.00 0.09 0.37 0.60 0.05 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.05 0.05 0.09 0.00 0.00 0.00 0.00 0.23 0.28 0.14 0.05 0.00 0.00 0.05 0.37 0.32 0.51 0.14 0.00 0.00 0.00 0.23 0.51 0.28 0.05 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.14 0.00 0.05 0.09 0.00 0.00 0.00 0.37 0.28 0.19 0.05 0.00 0.00 0.09 1.02 0.70 0.60 0.23 0.00 0.05 0.00 0.84 1.16 0.28 0.09 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.05 0.05 0.05 0.00 0.00 0.00 1.02 0.32 0.09 0.05 0.00 0.00 0.32 2.60 0.60 0.37 0.28 0.00 0.00 0.23 1.25 1.58 0.19 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.23 2.60 1.25 1.25 0.60 0.79 0.79 0.74 1.39 10.82 9.80 3.95 1.35 1.53 1.53 1.07 2.79 15.55 17.83 4.60 1.62 0.14 0.14 0.23 0.56 5.29 9.42 2.09 0.19 0.00 0.00 0.74 1.07 0.23 0.00 0.23 1.39 2.79 0.56 0.00 2.60 10.82 15.55 5.29 0.00 1.25 9.80 17.83 9.42 0.00 1.25 3.95 4.60 2.09 0.00 0.60 1.35 1.62 0.19 TOTAL 0.00 5.94 28.83 44.99 17.92 38

Peach Bottom Atomic Power Station 2007 Radiation Dose Assessment Report Peach Bottom Nuclear Station 320 ft.

Wind Speed and Direction July-September, 2007 3l6Ft-33Ft Delta-T (F)

SPEED CLASS N

NNE NE ENE H

WIND DIRECTION CLASSES-------------

ESE SE SSE S

SSW SW WSW STABILITY CLASSES------------

W WNW NW NNW TOTAL EU ND SO N

55 MS ES TOTAL EU 1 NO 9 SO N

2 SS 4 ME ES EU O ND T SO N

2 SS 4 MS ES O0.00 0.05 0.00 0.00 0.14 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 0.00 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 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.09 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 0.14 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 0.19 0.09 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 0.05 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.05 0.14 0.05 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.09 0.28 0.28 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.37 0.19 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.05 0.09 0.74 1.21 0.19 0.00 0.00 0.00 0.00 0.00 0.05 0.00 0.00 0.00 0.00 0.05 0.00 0.09 0.00 0.74 0.00 1.21 0.05 0.19 0.00 0.00 0.00 2.27 0.05 TOT 8.22 5.11 4.64 5.15 3.71 4.22 5.25 8.12 12.95 7.85 5.62 4.92 4.18 3.57 6.87 9.61 100.00 2.46 2.09 5.06 35.00 39.55 12.07 3.76 100.00 Wind Direction by Stability N

NNE NE ENE E

ESE SE SSE S

SSW SW WOW W

WNW NW NNW TOTAL

-STABILITY CLASSES-0.00 0.14 0.51 2.83 3.39 0.88 0.46 0.05 0.00 0.42 1.56 2.04 0.74 0.28 0.14 0.00 0.23 1.86 1.58 0.70 0.14 0.37 0.23 0.23 2.97 0.79 0.37 0.19 0.51 0.09 0.60 1.81 0.51 0.14 0.05 0.70 0.28 0.23 1.39 1.58 0.05 0.00 0.46 0.28 0.46 1.44 2.37 0.19 0.05 0.14 0.23 0.42 2.32 4.50 0.42 0.09 0.09 0.70 0.70 3.25 6.92 1.16 0.14 0.00 0.05 0.37 1.90 4.36 1.07 0.09 0.00 0.05 0.09 2.18 2.14 0.84 0.32 0.00 0.00 0.00 1.81 1.76 0.93 0.42 0.00 0.00 0.00 0.84 1.16 1.72 0.46 0.00 0.00 0.05 0.93 1.30 1.07 0.23 0.00 0.05 0.19 2.65 2.41 1.11 0.46 0.00 0.00 0.56 5.25 2.74 0.70 0.37 2.46 2.09 5.06 35.00 39.55 12.07 3.76 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 SSE 5

SSW SW WSW N

WNW NW NNW TOTAL

-WIND SPEED CLASSES-0.00 0.00 0.00 0.00 0.00 0.23 0.09 0.37 1.07 0.56 1.53 2.14 2.00 2.55 2.41 4.04 2.18 2.04 1.53 0.51 2.23 0.65 0.23 0.00 0.23 0.19 0.05 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.60 2.18 1.35 0.09 0.00 0.00 0.00 0.09 1.58 3.06 0.51 0.00 0.00 0.00 0.51 2.37 3.76 1.49 0.00 0.00 0.00 0.42 3.16 7.10 2.18 0.09 0.00 0.00 0.37 2.18 4.32 0.97 0.00 0.00 0.00 0.42 1.58 2.74 0.70 0.14 0.05 0.00 0.42 1.25 2.18 0.79 0.28 0.00 0.00 0.19 0.84 1.95 1.11 0.09 0.00 0.00 0.19 0.70 1.39 1.07 0.23 0.00 0.00 0.28 0.88 2.65 2.41 0.65 0.00 0.00 0.14 1.49 4.18 3.25 0.56 0.00 0.00 5.94 28.83 44.99 17.92 2.27 0.05 C AL M

< 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 39

Peach Bottom Atomic Power Station 2007 Radiation Dose Assessment Report Peach Bottom Nuclear Station October-December, 2007 320 ft.

Wind Speed and Direction 316Ft-33Ft Delta-T (F)

Number of Observations =

2202 Values are Percent Occurrence SPEED CLASS EU MU C SU A

N L SS N MS ES WIND DIRECTION CLASSES N

NNE NE ENE E

ESE SE SSE S

SSW STABILITY CLASSES----------

W WNW NW NNW TOTAL EU MU SU N

SS MS ES TOTAL SW WSW EU MU SU N

SS MS ES EU MU SU N

SS MS ES EU MU SU N

SS MS ES EU MU SU N

SS MS ES 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.09 0.09 0.00 0.05 0.00 0.00 0.00 0.41 0.23 0.05 0.05 0.00 0.00 0.00 0.45 0.59 0.18 0.05 0.00 0.00 0.00 0.41 0.32 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 0.18 0.00 0.05 0.00 0.00 0.00 0.27 0.45 0.00 0.00 0.00 0.00 0.00 0.73 0.54 0.09 0.00 0.00 0.00 0.00 0.41 0.68 0.09 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 0.05 0.05 0.00 0.00 0.05 0.54 0.36 0.00 0.00 0.00 0.00 0.05 1.00 0.27 0.14 0.00 0.00 0.09 0.09 0.23 0.09 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 0.18 0.00 0.00 0.00 0.05 0.23 0.68 0.68 0.05 0.00 0.05 0.05 0.05 1.23 0.77 0.09 0.00 0.00 0.00 0.00 0.68 0.09 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.09 0.09 0.00 0.14 0.05 0.09 0.14 1.32 1.32 0.27 0.05 0.00 0.00 0.00 0.73 0.95 0.00 0.00 0.00 0.00 0.00 0.14 0.32 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

.0.00 0.00 0.18 0.05 0.09 0.00 0.00 0.23 0.09 0.54 1.04 0.18 0.00 0.14 0.09 0.09 0.54 0.68 0.00 0.00 0.00 0.00 0.00 0.23 0.09 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.14 0.27 0.14 0.05 0.00 0.05 0.14 0.64 1.54 0.09 0.00 0.18 0.18 0.14 0.73 0.59 0.09 0.00 0.09 0.00 0.00 0.50 0.41 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 0.05 0.05 0.05 0.00 0.00 0.00 0.59 1.32 0.14 0.00 0.00 0.00 0.23 0.54 1.77 0.05 0.00 0.00 0.00 0.05 0.41 0.91 0.09 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.14 0.23 0.05 0.00 0.00 0.00 0.00 0.77 1.09 0.45 0.05 0.05 0.05 0.27 1.04 3.04 0.32 0.23 0.00 0.05 0.14 1.45 1.86 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 0.27 0.05 0.00 0.00 0.00 0.05 0.64 0.68 0.32 0.14 0.00 0.05 0.09 0.64 1.00 0.09 0.05 0.00 0.05 0.05 0.27 0.77 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 0.18 0.09 0.00 0.00 0.00 0.00 0.59 0.54 0.18 0.09 0.00 0.05 0.05 0.50 0.68 0.00 0.00 0.00 0.00 0.00 0.05 0.50 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 0.09 0.05 0.05 0.00 0.00 0.00 0.41 0.54 0.05 0.00 0.00 0.09 0.00 0.54 0.45 0.41 0.23 0.00 0.00 0.00 0.23 0.64 0.50 0.14 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.09 0.14 0.09 0.00 0.00 0.00 0.00 0.23 0.50 0.14 0.09 0.00 0.00 0.05 0.59 0.59 0.32 0.09 0.00 0.00 0.00 0.54 1.59 0.95 0.36 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.05 0.18 0.09 0.05 0.00 0.00 0.00 0.18 0.32 0.23 0.00 0.00 0.00 0.09 0.73 0.50 0.73 0.14 0.00 0.00 0.00 0.82 1.54 0.59 0.09 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.05 0.14 0.14 0.05 0.00 0.00 0.00 0.18 0.27 0.23 0.14 0.00 0.00 0.00 1.00 1.18 0.05 0.00 0.00 0.00 0.00 1.41 2.27 0.18 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.09

.0.09 0.05 0.00 0.00 0.00 0.00 0.27 0.45 0.23 0.00 0.00 0.00 0.14 0.73 1.41 0.41 0.18 0.00 0.00 0.05 2.45 0.68 0.09 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 1.00 2.27 0.91 0.50 0.05 0.05 0.41 0.68 8.27 11.35 2.59 0.59 0.41 0.41 0.54 1.23 11.72 15.03 2.95 0.95 0.09 0.09 0.18 0.36 10.22 12.76 2.59 0.59 0.00 0.00 0.41 0.54 0.18 0.00 0.00 0.68 1.23 0.36 0.00 1.00 8.27 11.72 10.22 0.00 2.27 11.35 15.03 12.76 0.00 0.91 2.59 2.95 2.59 0.00 0.50 0.59 0.95 0.59 0.00 4.68 23.93 32.83 26.79 40

Peach Bottom Atomic Power Station 2007 Radiation Dose Assessment Report Peach Bottom Nuclear Station 320 ft.

Wind Speed and Direction October-December, 2007 316Ft-33Ft Delta-T (F)

SPEED WIND DIRECTION CLASSES STABILITY CLASSES ----------

EU ND SU N

SS MS ES TOTAL CLASS N

NNE NE ENE ESE SE SSE S

SSW SW WSW 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 0.05 0.05 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 0.00 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 0.05 0.00 0.05 0.14 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.05 0.18 0.05 0.00 0.00 0.00 0.00 0.14 0.05 0.00 0.00 0.00 0.00 0.05 0.14 0.14 0.09 0.00 0.00 0.00 0.00 0.09 0.05 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 0.27 0.18 0.00 0.05 0.00 0.00 0.00 0.00 0.05 0.00 0.00 0.00 0.00 0.00 0.54 0.91 0.05 0.00 0.00 0.00 0.00 1.18 0.05 0.00 0.00 0.00 0.00 0.00 1.09 1.04 0.05 0.00 0.00 0.00 0.00 1.41 0.23 0.00 0.00 0.00 0.00 0.05 1.41 0.54 0.05 0.00 0.00 0.00 0.00 0.45 0.00 0.00 0.00 0.00 0.00 0.00 0.64 0.05 0.00 0.00 0.00 0.00 0.00 0.00 0.05 0.00 0.00 0.00 0.00 0.00 0.09 4.22 3.32 0.27 0.05 0.00 0.00 0.00 0.00 3.32 0.50 0.00 0.00 0.00 0.00 0.09 0.00 4.22 3.32 3.32 0.27 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 0.05 0.00 7.95 3.81 0.50 0.00 TOT 3.09 3.54 3.04 4.90 5.68 4.27 6.09 6.40 11.72 5.72 3.59 4.95 9.08 10.13 9.76 8.04 100.00 0.54 1.14 2.36 38.74 45.23 9.31 2.68 100.00 Wind Direction by Stability N

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW NW NNW TOTAL

-STABILITY CLASSES-0.00 0.00 0.00 1.41 1.32 0.23 0.14 0.00 0.00 0.00 1.45 1.86 0.18 0.05 0.00 0.09 0.18 1.77 0.77 0.18 0.05 0.05 0.09 0.27 2.63 1.73 0.14 0.00 0.05 0.09 0.14 2.27 2.68 0.27 0.18 0.14 0.32 0.18 1.50 1.86 0.27 0.00 0.27 0.23 0.27 2.04 2.86 0.36 0.05 0.00 0.00 0.27 1.59

4. 18 0.32 0.05 0.05 0.09 0.41 3.59 6.45 0.86 0.27 0.00 0.09 0.23 1.77 2.91 0.54 0.18 0.00 0.05

.0.05 1.14 1.95 0.32 0.09 0.00 0.09 0.00 1.45 1.95 1.00 0.45 0.00 0.00 0.05 3.18 3.77 1.54 0.54 0.00 0.00 0.09 4.27 3.81 1.68 0.27 0.00 0.00 0.05 4.50 4.41 0.64 0.18 0.00 0.00 0.18 4.18 2.72 0.77 0.18 0.54 1.14 2.36 38.74 45.23 9.31 2.68 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 SSE S

SSW SW WSW W

WNW NW NNW TOTAL

-WIND SPEED CLASSES-0.00 0.23 0.73 1.27 0.73 0.09 0.05 0.00 0.27 0.73 1.36 1.18 0.00 0.00 0.00 0.14 0.95 1.45 0.50 0.00 0.00 0.00 0.23 1.68 2.23 0.77 0.00 0.00 0.00 0.32 3.22 1.68 0.45 0.00 0.00 0.00 0.32 2.09 1.54 0.32 0.00 0.00 0.00 0.59 2.45 1.91 1.04 0.09 0.00 0.00 0.14 2.04 2.59 1.45 0.14 0.05 0.00 0.41 2.36 5.00 3.50 0.27 0.18 0.00 0.32 1.82 1.91 1.14 0.41 0.14 0.00 0.27 1.41 1.27 0.59 0.05 0.00 0.00 0.18 1.00 1.73 1.50 0.50 0.05 0.00 0.32 0.95 1.63 3.45 1.50 1.23 0.00 0.36 0.73 2.18 3.04 2.18 1.63 0.00 0.36 0.82 2.23 3.86 2.04 0.45 0.00 0.23 0.95 2.86 3.27 0.68 0.05 0.00 4.68 23.93 32.83 26.79 7.95 3.81 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 41

Peach Bottom Atomic Power Station 2007 Radiation Dose Assessment Report Peach Bottom Nuclear Station January-December, 2007 320 ft.

Wind Speed and Direction 316Ft-33Ft Delta-T (F)

Number of Observations =

8559 Values are Percent Occurrence SPEED CLASS EU MU C SU 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 WIND DIRECTION CLASSES-----------

N NNE NE ENE E

ESE SE SSE S

SSW SW WSW STABILITY CLASSES----------

W WNW NW NNW TOTAL EU MU SU N

SS MS ES 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.07 0.05 0.06 0.05 0.00 0.00 0.05 0.50 0.41 0.16 0.08 0.00 0.02 0.11 0.81 0.92 0.19 0.12 0.00 0.00 0.13 0.61 0.67 0.09 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.12 0.07 0.02 0.02 0.00 0.01 0.04 0.41 0.50 0.21 0.08 0.01 0.00 0.09 0.71 0.76 0.13 0.05 0.01 0.01 0.04 0.34 0.39 0.05 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.04 0.16 0.06 0.06 0.04 0.01 0.01 0.06 0.54 0.32 0.15 0.02 0.07 0.01 0.05 0.62 0.51 0.12 0.06 0.04 0.04 0.02 0.29 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 0.01 0.00 0.00 0.00 0.01 0.05 0.35 0.23 0.07 0.07 0.05 0.00 0.00 0.04 0.14 0.26 0.14 0.16 0.19 0.23 0.68 0.92 0.34 0.53 0.09 0.13 0.07 0.02 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.18 0.13 0.05 0.00 0.09 0.18 0.16 0.67 0.71 0.09 0.01 0.30 0.09 0.09 0.51 0.44 0.00 0.00 0.00 0.01 0.01 0.29 0.16 0.01 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.12 0.14 0.05 0.04 0.00 0.07 0.08 0.55 0.86 0.06 0.05 0.29 0.13 0.18 0.88 0.83 0.07 0.00 0.08 0.06 0.04 0.49 0.20 0.01 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.11 0.12 0.06 0.01 0.00 0.02 0.02 0.53 0.97 0.14 0.04 0.04 0.09 0.18 0.83 1.14 0.05 0.00 0.00 0.02 0.06 0.33 0.65 0.04 0.01 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.05 0.19 0.09 0.01 0.00 0.01 0.01 0.71 1.00 0.41 0.06 0.02 0.19 0.43 1.33 2.75 0.33 0.11 0.04 0.13 0.16 1.09 1.34 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 0.12 0.06 0.02 0.00 0.00 0.02 0.57 0.65 0.27 0.07 0.00 0.04 0.14 0.62 1.62 0.43 0.13 0.00 0.04 0.05 0.34 0.75 0.07 0.02 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.05 0.09 0.06 0.02 0.00 0.00 0.01 0.39 0.65 0.21 0.13 0.00 0.02 0.11 0.70 0.86 0.21 0.04 0.00 0.04 0.04 0.27 0.56 0.07 0.02 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.04 0.09 0.07 0.06 0.00 0.00 0.02 0.37 0.43 0.08 0.02 0.00 0.02 0.04 0.53 0.63 0.36 0.18 0.00 0.00 0.05 0.32 0.63 0.34 0.06 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.07 0.07 0.05 0.01 0.00 0.00 0.00 0.34 0.26 0.14 0.08 0.00 0.00 0.06 0.44 0.68 0.39 0.15 0.00 0.01 0.09 0.81 1.32 0.46 0.14 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.07 0.08 0.05 0.04 0.00 0.00 0.00 0.22 0.22 0.19 0.04 0.00 0.00 0.07 0.74 0.55 0.39 0.08 0.00 0.02 0.15 1.58 1.44 0.39 0.06 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.08 0.07 0.08 0.06 0.00 0.00 0.00 0.29 0.26 0.25 0.08 0.00 0.01 0.05 0.97 1.04 0.42 0.12 0.00 0.02 0.12 1.44 1.55

0. 18 0.04 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.09 0.12 0.02 0.04 0.00 0.00 0.04 0.61 0.36 0.18 0.06 0.00 0.02 0.26 1.83 1.00 0.30 0.20 0.00 0.06 0.23 1.78 0.89 0.11 0.04 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.01 0.01 0.00 0.09 1.85 1.53 0.82 0.44 0.50 0.50 0.61 0.93 8.30 8.48 2.76 0.91 0.96 0.96 0.71 1.87 12.92 14.58 3.45 1.23 0.16 0.16 0.47 1.19 10.38 10.82 1.85 0.39 0.00 0.00 0.61 0.71 0.47 0.00 0.09 0.93 1.87 1.19 0.00 1.85 8.30 12.92 10.38 0.00 1.53 8.48 14.58 10.82 0.00 0.82 2.76 3.45 1.85 0.00 0.44 0.91 1.23 0.39 TOTAL 0.00 4.74 22.49 35.72 25.25 0.19 0.05 0.02 0.97 0.48 0.05 0.01 0.00 0.01 0.01 0.29 0.06 0.01 0.00 0.04 0.01 0.01 0.43 0.35 0.02 0.00 0.00 0.00 0.00 0.13 0.14 0.00 0.00 42

Peach Bottom Atomic Power Station 2007 Radiation Dose Assessment Report Peach Bottom Nuclear Station 320 ft. Wind Speed and Direction January-December, 2007 316Ft-33Ft Delta-T (F)

SPEED WIND DIRECTION CLASSES---------------------------------

CLASS N

NNE NE ENE STABILITY CLASSES------------

NNW TOTAL ED MU SU N

SS MS ES TOTAL ESE SE SSE S

SSW SW WSW W

WNW NW EU I14MU 9 SU N

2 SS 4 MS ES EU O MU T SU N

2 SS 4 MS ES 0.00 0.03.

0.03.

0.26 0.07 0.00 0.00 0.00 0.00 0.00 0.01 0.01 0.00 0.00 0.03.

0.00 0.02 0.05 0.04 0.00 0.00 0.00 0.00 0.01 0.04 0.00 0.00 0.00 0.04 0.00 0.00 0.02 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 0.03.

0.02 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 0.00 0.00 0.00 0.03.

0.00 0.00 0.00 0.00 0.00 0.00 0.136 0.07 0.00 0.00 0.00 0.00 0.00 0.01 0.00 0.00 0.00 0.00 0.00 0.00 0.07 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 0.04 0.00 0.00 0.00 0.00 0.00 0.01 0.01 0.00 0.00 0.00 0.00 0.04 0.06 0.11 0.01 0.00 0.00 0.00 0.00 0.05 0,.04 0.00 0.00 0.00 0.00 0.02 0.05 0.09 0.02 0.00 0.00 0.00 0.00 0.02 0.01 0.00 0.00 0.00 0.00 0.04 0.01 0.14 0.00 0.00 0.00 0.00 0.00 0.00 0.01 0.00 0.00 0.00 0.00 0.03.

0.15 0.12 0.04 0.01 0.00 0.00 0.00 0.03.

0.03.

0.00 0.00 0.00 0.01 0.12 0.67 0.46 0.05 0.00 0.00 0.00 0.01 0.50 0.04 0.00 0.00 0.00 0.01 0.28 2.01 0.47 0.09 0.00 0.00 0.01 0.07 1.09 0.06 0.00 0.00 0.00 0.00 0.04 1.45 0.25 0.01 0.00 0.00 0.00 0.00 0.99 0.02 0.00 0.00 0.00 0.00 0.07 0.58 0.08 0.00 0.00 0.00 0.00 0.03.

0.20 0.03.

0.00 0.00 0.05 0.04 0.64 5.56 1.99 0.22 0.01 0.01 0.03.

0.13.

2.94 0.22 0.00 0.00 0.05 0.01 0.04

0. 01 0.64 0.11 5.56 2.94 1.99 0.22 0.22 0.00 0.03.

0.00 8.51 3.29 TOT 5.46 4.23 3.42 4.32 3.80 4.45 5.36 5.51 3.0.78 6.32 4.74 4.69 7.41 3.0.45 9.87 9.18 100.00 1.69 1.83 4.84 41.94 37.62 9.09 2.98 100.00 Wind Direction by Stability N

NNE NE ENE E

ESE SE SSE 5

SSW SW WSW W

WNW NW NNW TOTAL

-STABILITY CLASSES-0.00 0.04 0.29 2.25 2.13 0.50 0.25 0.04 0.02 0.20 1.66 1.75 0.41 0.15 0.16 0.06 0.16 1.64 0.96 0.33 0.132 0.34 0.20 0.23 2.30 0.97 0.20 0.08 0.29 0.138 0.29 3..73 1.1.0 0.135 0.06 0.40 0.28 0.27 3..82 1.52 0.3.5 0.03.

0.37 0.26 0.29 2.10 2.07 0.19 0.08 0.04 0.14 0.26 1.81 2.93 0.28 0.06 0.06 0.33 0.64 3.28 5.42 0.88 0.18 0.00 0.07 0.23 1..67 3.25 0.85 0.25 0.00 0.06 0.19 1.43.

2.33 0.55 0.21 0.00 0.02 0.12 1.41 1.92 0.89 0.33 0.00 0.02 0.28 2.83 2.82 1.07 0.39 0.00 0.05 0.57 5.70 2.82 1.10 0.21 0.00 0.04 0.20 5.22 3.139 0.93 0.29 0.00 0.08 0.61 5.09 2.47 0.61 0.33 1.69 3..83 4.84 43..94 37.62 9.09 2.98 Extremely Unstable Moderately Unstable Sl.ightly Unstabl.e Neutral Slightly Stable Moderately Stable Extremely Stable Wind Direction by Wind Speed N

NNE NE ENE E

ESE SE SSE 5

SSW SW WSW W

WNW NW NNW TOTAL

-WIND SPEED CLASSES-0.00 0.22 1.20 2.136 3..50 0.35 0.02 0.00 0.23 1.25 3..75 0.83 0.1.2 0.05 0.00 0.35 3.1.11 3..44 0.46 0.06 0.03.

0.00 0.49 3..65 1.76 0.39 0.04 0.00 0.00 0.39 2.25 0.86 0.27 0.03.

0.03.

0.00 0.35 1.92 1.45 0.49 0.23 0.01 0.00 0.34 1.67 2.37 0.88 0.11 0.00 0.00 0.29 3..72 2.33 1.11 0.05 0.02 0.00 0.34 2.23.

5.15 2.79 0.21 0.08 0.00 0.27 1.59 2.98 1.26 0.3.9 0.04 0.00 0.22 1.39 1.94 0.99 0.19 0.01 0.00 0.26 0.93 3..75 3..39 0.33 0.02 0.00 0.20 0.82 1.72 2.83 1.30 0.55 0.00 0.23 0.67 1.82 3.63 2.86 1.23 0.00 0.29 0.88 2.63.

3.34 3..74 1.02 0.00 0.27 1.24 3.62 3.10 0.74 0.22 0.00 4.74 22.49 35.72 25.25 8.51 3.29 C AL M

< 3.5 mph 3.6

-7.5 mph 7.6 1

32.5 mph 12.6 -138.5 mph 1.8.6

-24.5 mph

> 24.5 mph 43

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APPENDIX B ENVIRONMENTAL MONITORING CHANGES

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TABLE VII.A-1 ODCM - Peach Bottom Atomic Power Station Radiological Environmental Monitoring Program Pathway Station Code Distance and Direction from PBAPS Vents 7,346 feet SE of site Sediment 4J IV.

Ingestion Milk T

J R

U C

34,584 feet W of site 5,119 feet W of site 4,694 feet WSW of site 11,414 feet SSW of site Collection Method and Discussion A sediment sample is taken down stream of discharge semi-annually.

Sample of fresh milk is collected from each farm biweekly when cows are on pasture (April through October),

monthly at other times.

Two species of recreationally important fish (predator and bottom feeder) sampled in season or semiannually if not seasonal.

Samples of three (3) different kinds of broad leaf vegetation monthly when available if milk sampling is not performed Gamma isotopic analysis each sample 1-131 analyses on each sample Gamma isotopic analysis or Cs-134,

-137 by chemical separation quarterly Gamma isotopic analyses on edible portions.

Analyses Fish 4

7,162 feet SE of site 6

C 57,347 feet NW of site Food Products Two offsite locations of highest predicted annual average ground level D/Q and one location (15-30 km distance) in the least prevalent wind direction as determined using the results of the most recent annual Land use Survey.

Gamma isotopic and 1-131 analysis C = Control Location 47

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FIGURE VII.A.2 ENVIRONMENTAL SAMPLING STATIONS AT INTERMEDIATE DISTANCES FROM PEACH BOTTOM SITE 49

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I1 FIGURE VII.A.3 ENVIRONMENTAL SAMPLING STATIONS AT REMOTE DISTANCES FROM PEACH BOTTOM SITE 51

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