ML14120A213

From kanterella
Jump to navigation Jump to search
Annual Radioactive Effluent Release Report 56 January 1, 2013 Through December 31, 2013
ML14120A213
Person / Time
Site: Peach Bottom  Constellation icon.png
Issue date: 04/29/2014
From: Pat Navin
Exelon Generation Co
To:
Document Control Desk, NRC/FSME
References
Download: ML14120A213 (97)
v • d • e


Text

1 Exelon Generation April 29, 2014 U.S. Nuclear Regulatory Commission Document Control Desk Washington, DC 20555-0001

Subject:

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

Facility Operating License DPR-12, DPR-44 and DPR-56 NRC Docket 50-171, 50-277 and 50-278 and ISFSI Docket 72-29 Annual Radioactive Effluent Release Report 56 January 1, 2013 through December 31, 2013 Enclosed is the Annual Radioactive Effluent Release Report 56, January 1, 2013 through December 31, 2013 for Peach Bottom Atomic Power Station, Units 2 and 3.

This report is being submitted in compliance with 10 CFR 50.36a(2) and the Technical Specifications of Operating Licenses DPR-44 and DPR-56 and to fulfill the requirements of Offsite Dose Calculation Manual Specification (ODCMS) 3.10.2. Additionally, this report is submitted to satisfy the annual effluent reporting requirements for the ISFSI required by the ODCM.

There were no revisions to the ODCM in the 2013 reporting period.

There are no commitments contained in this letter.

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

Sincerely, Patrick Navin, Plant Manager, Peach Bottom Atomic Power Station PDN/*"GRS/EkSS/eas Enclosure (1) cc: USNRC Region I, Regional Administrator (William Dean)

USNRC Senior Resident Inspector, PBAPS (Sam Hansell)

USNRC Region I Inspector, Joe Furia CCN 14-29

Exelon Generation.

April 29, 2014 U.S. Nuclear Regulatory Commission Annual Radioactive Effluent Release Report 55 January 1, 2013 through December 31, 2013 bcc: P. Steinhauer, PSEG [patricia.steinhauer@pseg.com]

S. Grey, State of Maryland [SGrey@dnr.state.md.us]

R. R. Janati, Commonwealth of Pennsylvania [rjanati @state.pa.us]

C. Mudrick, Kennett Square M. Massaro, PBAPS SMB4 P. Navin, PBAPS, A4-1S T. Moore, PBAPS SMB3-2A R. Reiner, Jr. PBAPS PB-TC M. Jesse, Kennett Square J. Armstrong, PBAPS, SMB4 R. Salvador, PBAPS SMB D. P. Helker, Kennett Square W. R. Nelle, PBAPS Records Management SRRS ID 2C.1 11

PEACH BOTTOM ATOMIC POWER STATION Unit Numbers 2 and 3 Docket Numbers 50-277 and 50-278 Unit Number 1 Docket Number 50-171 PBAPS Independent Spent Fuel Storage Installation Docket Number 72-29 RADIOACTIVE EFFLUENT RELEASE REPORT NO. 56 JANUARY 1, 2013 THROUGH DECEMBER 31, 2013 Submitted to The United States Nuclear Regulatory Commission Pursuant to Facility Operating Licenses DPR-44 and DPR-56

Peach Bottom Atomic Power Station Licensee: Exelon Generation Company, LLC Unit 2 and 3 PSEG Nuclear, LLC (This page intentionally left blank) 2

Peach Bottom Atomic Power Station Licensee: Exelon Generation Company, LLC Unit 2 and 3 PSEG Nuclear, LLC TABLE OF CONTENTS Introduction .................................................................................................................................... 5 Attachm ent 1: Supplem ental Inform ation .................................................................................. 7 Regulatory Lim its ............................................................................................................ 8 M axim um Perm issible Concentrations ........................................................................... 9 Average Energy ........................................................................................................... 9 M easures and Approxim ations of Total Radioactivity .................................................. 10 Batch Releases .................................................................................................................. 12 Average Stream Flow ................................................................................................... 12 Abnorm al or Unplanned Releases ................................................................................ 13 Liquid Releases .................................................................................................................. 13 Gaseous Releases .......................................................................................................... 14 Changes to the ODCM ................................................................................................... 15 M inim um Detectable Concentrations ........................................................................... 15 Sam pling and Analysis Deviations ................................................................................ 15 Violations .......................................................................................................................... 15 Dose Assessm ent .......................................................................................................... 16 Introduction ...................................................................................................................... 16 Liquid Dose Assessm ent ................................................................................................. 16 Gaseous Dose Assessm ent ............................................................................................ 17 Attachm ent 2: Effluent Sum m ary ............................................................................................ 22 Gaseous Effluents - Sum m ation of All Releases .......................................................... 23 Gaseous Effluents for Elevated Release Point - M ain Stack ......................................... 24 Gaseous Effluents for Ground Level Release Points Unit 2 and Unit 3 Roof Vents .......... 25 Liquid Effluents - Sum m ation of All Releases .............................................................. 26 Liquid Effluents Release Points - Liquid Radwaste, RHR Leaks and Tritium Leaks ..... 27 Attachm ent 3: Solid W aste and Irradiated Fuel Shipm ents ...................................................... 28 Solid W aste Shipped ..................................................................................................... 29

1. Type of W aste .......................................................................................................... 29
2. Estimate of Major Nuclide Composition (by type of waste) .................................... 30
3. Solid W aste Disposition ........................................................................................... 31 Irradiated Fuel Shipm ents ............................................................................................ 31 3

Peach Bottom Atomic Power Station Licensee: Exelon Generation Company, LLC Unit 2 and 3 PSEG Nuclear, LLC Changes to Process Control Program (PCP) .................................................................. 31 : Radiological Im pact on M an ............................................................................. 32 Radiological Im pact on M an ......................................................................................... 33 40 CFR 190 Doses .......................................................................................................... 33 Liquid and Gaseous Effluent Radiation Monitors and Instrumentation ....................... 33 Attachm ent 5: M eteorological Data ......................................................................................... 34 Appendix A: ERRATA Data Section ............................................................................................ 91 Correction to Previously-Reported Ground-Level Noble Gas Doses ............................ 92 Correction to Previously-Reported Gaseous Particulate and Iodine Activity Released in Reporting Periods 2007 and 2008 ............................................................................... 94 Gaseous Effluents - Summation of All Releases .......................................................... 94 Gaseous Effluents - Summation of All Releases .......................................................... 94 Correction to Previously-Reported Transfer and Processed Release of Water from Peach Bottom Decommissioned Unit 1 (SAFSTOR) ............................................................... 95 Technical Concurrence (for accuracy of information):

CIhemistry, Environme al ak'd Radioactive Waste Manager Date 4

Peach Bottom Atomic Power Station Licensee: Exelon Generation Company, LLC Unit 2 and 3 PSEG Nuclear, LLC Introduction In accordance with the Reporting Requirements of Technical Specification 5.6.3 applicable during the reporting period, this report summarizes the Effluent Release Data for Peach Bottom Atomic Power Station (PBAPS) Units 2 and 3 for the period January 1, 2013 through December 31, 2013. The notations E+ and E- are used to denote positive and negative exponents to the base 10, respectively.

The release of radioactive materials during the reporting period was within the Offsite Dose Calculation Manual Specification (ODCMS) limits.

There were two (2) unplanned releases of liquid radioactive material. One release was from Residual Heat Removal (RHR) heat exchanger and the other is from groundwater tritium contamination ('tritium plume').

There was one (1) unplanned release of gaseous radioactive material during the Unit 3 1 9 th Refueling Outage on September 28, 2013. This was due to a slight positive pressure in the Reactor Building while hatches were open to support Unit 3 outage work activities. Details of this release are included in this report.

The maximum calculated organ dose (bone) from iodines (1-131, 1-133 and 1-135), tritium (H-3),

carbon-14 (C-14) and particulates to any individual due to gaseous effluents was 5.49E-01 mrem, which was approximately 1.83E+00% of the annual limit. The maximum calculated air dose in the UNRESTRICTED Area due to noble gas effluents was 2.33E-01 mrad (gamma) and 1.60E-01 mrad (beta), which was 1.16E+00% and 3.99E-01%, respectively, of the annual limits.

There were no gaseous or liquid radioactive releases from the decommissioned Unit 1 in SAFSTOR1 status. All radioactive water that collected in spaces inside was removed and was transferred from the Unit 1 Radioactive Material License to the Unit 2 and 3 Operating License to be processed through the normal radioactive waste processing systems.

Routine sampling of the sediment of the Susquehanna River (Conowingo Pond) had one (1) sample with low-level of cesium-137 (Cs-137) indicated (Station 4T). This sample assumed that this concentration, 2.41E+00 pCi/ kg, existed all year long for dose projection to a member of the public. The maximum receptor was found to be the teenage skin at 6.33E-04 mrem with a teenage whole-body dose of 5.43E-04 mrem. These doses were 3E-03% and 9E-03% of the 10 CFR 50, Appendix I limits respectively. These radiation exposures were found to be far-below 1

SAFSTOR is "[a) method of decommissioning in which a nuclear facility is placed and maintained in a condition that allows the facility to be safely stored and subsequently decontaminated (deferred decontamination) to levels that permit release for unrestricted use", http://www.nrc.pov/reading-rm/basic-ref/glossary/safstor.html accessed 7 APR 2014.

5

Peach Bottom Atomic Power Station Licensee: Exelon Generation Company, LLC Unit 2 and 3 PSEG Nuclear, LLC ODCMS limits. Typically, Cs-137 found in the environment is attributed to atmospheric nuclear weapons testing especially due to the absence of other shorter half-life nuclides that would indicate more-recent production from a nuclear reactor. It is not known if this is also attributable to the Fukushima Daiichi accident releases.

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

There were no changes made to RW-AA-100 "Process Control Program for Radioactive Waste" in 2013.

Particulate gamma activity (particulates) and radioactive iodine (iodines) activity released in 2007 and 2008 were found to be reported to be higher than actual. The corrected values and associated dose calculations are provided in the Errata Data section of this report. (Appendix A).

Clarifications to accounting of Unit 1 Radioactive Waster transferred and released off-site were performed and included in the Errata Data section as well. (Appendix A).

There were no changes made to the ODCM during the 2013 reporting period.

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

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

Peach Bottom Atomic Power Station Licensee: Exelon Generation Company, LLC Unit 2 and 3 PSEG Nuclear, LLC Attachment 1: Supplemental Information 7

Peach Bottom Atomic Power Station Licensee: Exelon Generation Company, LLC Unit 2 and 3 PSEG Nuclear, LLC Regulatory Limits Table 1. Noble Gas Dose Rate and Dose Limits Maximum Value Units Limit Classification Specification 500 torer/y annual total body dose ODCM Specification rate 3.8.C.1.a 3000 0DCM38CSpia Specification 3000 mrem/y annual skin dose rate 3.8. C.1. a 10 mrad gamma radiation air ODCM Specification dose per quarter 3.8.C.2.a beta radiation in air ODCM Specification dose per quarter 3.8.C.2.b 20 mrad gamma radiation in air ODCM Specification dose per year 3.8.C.2.c 40 beta radiation in air ODCM Specification dose per year 3.8.C.2.d Table 2. lodines, Tritium and Particulates (with half-lives > 8 days) Dose Rate and Dose Limits Maximum Value Units Limit Classification Specification 1500 mrem/y annual dose rate limit to ODCM Specification any organ 3.8.C.1 .b 15 mrem annual dose limit to any ODCM Specification organ per quarter 3.8.C.3.b dose limit to any organ ODCM Specification 30 mrem per year 3.8.C.3.b 8

Peach Bottom Atomic Power Station Licensee: Exelon Generation Company, LLC Unit 2 and 3 PSEG Nuclear, LLC Table 3. Liquid Effluent Activity Concentration and Dose Rate Limits Maximum Value Units Limit Classification Specification 5 10 times 10 CFR 20, Activity Concentration in ODCM Specification Appendix B, Table 2, pCi/ mL all liquid releases 3.8.B.1 .a Column 2 total activity concentration for all ODCM Specification 2E-04 pCi/mL dissolved and entrained 3.8.B.1 .b noble gases mrem total body dose limit per ODCM Specification 3.0 quarter 3.8.B.2.a 10 m rem total body dose limit per ODCM Specification year 3.8.B.2.a 6.0 mrem dose limit per quarter to ODCM Specification any organ 3.8.B.2.b 20 mrem dose limit per year to ODCM Specification any organ 3.8.B.2.b Maximum Permissible Concentrations Gaseous dose rates, rather than effluent concentrations, are used to calculate permissible release rates for gaseous releases. The maximum permissible dose rates for gaseous releases are defined in ODCMS 3.8.C.l.a and 3.8.C.1.b.

The Effluent Concentrations Limits (ECL) specified in 10 CFR 20, Appendix B, Table 2, Column 2 and multiplied by 10, for identified nuclides, are used to calculate permissible release rates and concentrations for liquid release per ODCMS 3.8.B.1.

The total activity concentration for all dissolved or entrained noble gases is limited to < 2E-04 gCi/ mL (ODCMS 3.8.B.1.b).

Average Energy The PBAPS ODCM limits the dose-equivalent rates due to the release of noble gases to less than or equal to 500 mrem/ year to the total body and less than or equal to 3000 mrem/ year to the skin. Therefore, the average beta and gamma energies of the radionuclide mixture in releases of fission and activation gases as described in Regulatory Guide 1.21, Revision 1, "Measuring, Evaluation, and Reporting Radioactivity in Solid Wastes and Releases of Radioactive Materials in Liquid and Gaseous Effluents from Light-Water-Cooled Nuclear Power Plants," are not applicable to PBAPS.

9

Peach Bottom Atomic Power Station Licensee: Exelon Generation Company, LLC Unit 2 and 3 PSEG Nuclear, LLC Measures and Approximations of Total Radioactivity Fission and Activation Gases The method used for gamma isotopic analysis is the Canberra Genie System with a gas Marinelli beaker. Grab samples are taken and analyzed weekly to determine the isotopic mixture of noble gas activity released for the week. Airborne effluent gaseous activity was continuously monitored and recorded in accordance with ODCMS Table 4.8.C.1. The data from the noble gas radiation monitor were analyzed to report noble gas effluent activities. When no activity was identified in the grab isotopic analysis, the entire release must be assumed to be the radionuclide most-limiting dose factors for the release pathway (i.e. krypton-88 (Kr-88) for all ground-level releases, Kr-88 for elevated gamma dose and Kr-87 for elevated beta dose; see NUREG-0133 2 ).

The activity released is listed as "unidentified" in the Attachment 2 Tables. If activity was found in the grab isotopic analysis, the isotopic mixture for the Noble Gas Monitor was determined from that isotopic mixture.

lodines The method used is the Canberra Genie System with a charcoal cartridge. Iodine activity was continuously sampled and analyzed in accordance with ODCMS Table 4.8.C.1.

Particulates The method used is the Canberra Genie System with a particulate filter (47 mm diameter).

Particulate activity was continuously sampled and analyzed in accordance with ODCM Table 4.8.C.1.

Composite particulate air samples were submitted to an offsite vendor laboratory for analyses of strontium-89 (Sr-89), strontium-90 (Sr-90) and gross alpha.

Carbon-14 The amount of C-14 released was estimated using the guidance from the Electric Power Research Institute (EPRI) Technical Report 1021106, "Estimation of Carbon-14 in Nuclear Power Plant Gaseous Effluents". The C-14 was released primarily through the stack (9.7E+01%) with a small amount (3.OOE+00%) through the plant vents. The C-14 in liquid effluents is not a significant dose pathway, as determined from studies. The resulting annual dose to the maximum hypothetical receptor is 5.49E-01 mrem, with the limiting receptor as the child bone.

Liquid Effluents Gamma isotopic activity concentrations are determined on each batch of liquid effluent prior to release using the Canberra Genie System in accordance with ODCMS Table 4.8.B.1. The total 2 http://www.nrc.gov/reading-rm/doc-collections/nuregs/staff/srO133/srO133.pdf accessed 9 April 2014.

10

Peach Bottom Atomic Power Station Licensee: Exelon Generation Company, LLC Unit 2 and 3 PSEG Nuclear, LLC activity of a released batch is determined by multiplying each nuclide's concentration by the total volume discharged.

Composite liquid radwaste samples are analyzed for tritium on-site and submitted to an offsite vendor laboratory for analyses of iron-55 (Fe-55), phosphorus-32 (P-32), Sr-89, Sr-90 and gross alpha.

Decommissioned Unit 1 Liquid Radioactive Waste Processing In 2013, a total of 1.66E+02 gallons of low-level radioactive water were transferred from the decommissioned and defueled Unit 1 facility, and added to the 8.OOE+O1 gallons carried forward from 2012, to the Unit 2 and 3 Liquid Radioactive Waste system for processing prior to release. Of this total amount transferred (2.46E+02 gallons), only 1.73E+02 gallons were released which contained a total tritium (H-3) activity of 2.10E+03 VICi.

A dose assessment of this release using the NRCDOSE LADTAP code shows that the hypothetical maximum receptor for this tritium is the child with 5.41E-10 mrem for the entire year (drinking water pathway and fish consumption). This dose is far below limits.

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

11

Peach Bottom Atomic Power Station Licensee: Exelon Generation Company, LLC Unit 2 and 3 PSEG Nuclear, LLC Batch Releases Table 4. Quarterly Liquid Batch Release Statistics First Quarter Second Quarter Third Quarter Fourth Quarter Number of Batch 2 13 20 4 Releases Total Time for Batch 1.45E+02 1.28E+03 4.79E+03 4.10E+02 Releases (minutes)

Maximum time period for batch 7.50E+01 2.70E+02 3.18E+02 1.30E+02 release (minutes)

Average time period for batch release 7.25E+01 9.82E+01 2.39E+02 1.03E+02 (minutes)

Minimum time period for batch 7.00E+01 1.OOE+00 3.OOE+01 8.00E+01 release (minutes)

Average Stream FlowA3eg4 4.83E+04 3.75E+04 2.11E+04 2.65E+04' Dilution volume 6.16E+11 6.74E+11 6.59E+11 5.76E+11 (liters)

Table 5. Quarterly Gaseous Batch Release Statistics First Quarter Second Quarter Third Quarter Fourth Quarter Number of batch 0 0 1 0 releases:

Total Time for batch N/A N/A 300 N/A releases (minutes)

Maximum time period for batch N/A N/A 300 N/A release (minutes):

Average time period for batch release N/A N/A 300 N/A (minutes)

Minimum time period for batch N/A N/A 300 N/A release (minutes)

Average Stream Flow The river flow is not used for dose calculations. The actual flow rate of Circulation Water (the water that is circulated within the plant for cooling) is determined for each liquid effluent 3 Average Stream Flow is not used for dose calculation.

4 Source: USGS National Water Information System, Site Name: "Susquehanna River at Marietta, PA", Site Number:

01576000. Data accessed 20 March 2014.

5 Official USGS data were not available for th Quarter. Averages obtained from-manual 4 calculations.

12

Peach Bottom Atomic Power Station Licensee: Exelon Generation Company, LLC Unit 2 and 3 PSEG Nuclear, LLC release because this Circulation Water provides dilution and therefore reduces the projected dose.

Abnormal or Unplanned Releases

'Abnormal' releases are those releases that are not defined as 'normal' releases in the Licensee's ODCM. While attempts are made to ensure radioactivity is not released offsite without processing, monitoring of systems with a potential for release is continuously performed. Source terms used for dose calculations utilize direct sampling and the maximum concentrations of nuclides to ensure that the most conservative and bounding estimates are used.

Therefore, reported doses for these abnormal releases are much larger than would be actually experienced.

Liquid Releases GroundwaterTritium Plume During 2013, during the sampling and analysis of the Radiological Ground Water Protection Program (RGPP), tritium was measured at several locations around the site. The ground water that has detectable tritium has been determined to be discharged into the intake or discharge canal. Details of this program can be found in the Peach Bottom Annual Radiological Environmental Operating Report as an appendix.

Analysis of Release It was estimated that the ground water flowed to the discharge canal at a steady rate of 175 gpm. With the concentration ranging from 4.16E-06 ViCi/ mL to 9.64E-06 VICi/ mL, the ground water released to the discharge canal was responsible for a hypothetical maximum 1.79E-05 mrem total body dose and critical organ dose (child liver)6 for the year. This dose contribution projection is well below the limit specified in the ODCM.

The tritium concentration is decreasing over time demonstrating that the RGPP at Peach Bottom is effective at locating potential leaks and correcting them. Surveillance of this program is ongoing.

HeatExchangerLeakage Throughout the 2013 calendar year, small leaks were discovered in a few of the Unit 2 and Unit 3 Residual Heat Removal (RHR) Heat Exchangers, which are designed to circulate water to remove heat from their respective reactor units when necessary. Because the internals are contaminated, small amounts of radioactivity could be released to the environment. Radiation monitoring instrumentation is installed to continuously monitor for an inadvertent release of 6The numerical values for dose are identical because the ingestion dose factors for all organs (except bone) are identical for the child in the liquid pathway.

13

Peach Bottom Atomic Power Station Licensee: Exelon Generation Company, LLC Unit 2 and 3 PSEG Nuclear, LLC radioactive material should the heat exchanger develop a large leak with a large amount of radioactivity. When the system is not operated, the contaminated-side of the heat exchanger is at a lower pressure than that of the uncontaminated or 'river' side. Therefore, for small leaks, river water normally leaks into the 'plant' side. However, for conservatism, Peach Bottom calculates the effect as if there was a steady leakage outward using data from samples taken of systems in communication with the 'plant' side of the heat exchanger to create an upper bound of the activity source term.

Analysis of Release It was estimated that the contaminated water released to the discharge canal for all of 2013 was responsible for 1.16E-06 mrem total body dose (for the hypothetical maximum receptor child), and 3.33E-06 mrem for the hypothetical maximum organ, child liver, dose. This dose contribution was well below the limits specified in the ODCM.

Samples were analyzed for all the parameters of radioactive effluent releases. Composite liquid radwaste samples counted for tritium and submitted to an offsite vendor laboratory for analyses of Fe-55, P-32, Sr-89, Sr-90 and gross alpha. The dose contributions and isotope quantities from the releases were added to this Radioactive Effluent Release Report for the applicable reporting periods.

The abnormal releases contributed approximately 2. 3E+01% of the calculated total-body dose and approximately 2.4E+01% of the calculated maximum organ dose for the combined total of all normal and abnormal liquid radioactive releases.

Gaseous Releases Unexpected Ventilation Shift DuringRefueling Outage On 28 September 2013 during the refueling outage on Unit 3, a small positive pressure outflow was detected and reported by radiation protection workers. The licensee, using its Corrective Action Program (CAP), documented the circumstances for subsequent review and assessment as a possible "abnormal" release (as opposed to a "normal" release which is defined as a release conducted through a system in the ODCM for processing prior to release to the unrestricted area).

Normally, containment of loose radioactive debris is established by a ventilation system capable of maintaining internal spaces at a negative pressure with respect to the outside.

Exhaust fans would take suction on the building interiors to route the air through a filtered treatment system.

The positive outflow of air from the plant was through a temporary opening created to support repairs and upgrades to plant systems. This opening was under the continuous surveillance of particulate gamma emitter (e.g. cobalt-60 (Co-60), cesium-137 (Cs-137), zinc-65 (Zn-65), etc.)

debris and iodine-131 (1-131) by Radiation Protection technicians as required by procedures.

Positive pressure indications alone do not constitute a release of radioactive materials. The 14

Peach Bottom Atomic Power Station Licensee: Exelon Generation Company, LLC Unit 2 and 3 PSEG Nuclear, LLC licensee had taken samples from each separate location (the 3B and 3D Residual Heat Removal Heat Exchanger rooms). Only one sample showed positive activity during the time of positive pressure at a concentration of 7.78E-12 ICi/ cc of Co-60.

The licensee took immediate action to prevent possible radioactive contamination from flowing out by installing covers while negative ventilation cannot be maintained until ventilation system components were restored to normal operation. Direct measurement of the flow rate was not possible because of interference from equipment but the differential pressure between inside and outside of the openings is known from continuous measurement.

This abnormal gaseous release was evaluated and the total activity released was found to be 6.51E-01 IpCi of Co-60 for the period. The release rate was calculated to be 3.62E-05 pICi/ s of Co-60 and this is a maximum projected dose to the limiting receptor of teenage lung of 1.51E-04 mrem/ y or 1.01E-05% of the instantaneous dose rate limit. This release is far below the limits of the ODCMS.

Changes to the ODCM There were no changes to the ODCM in 2013.

Minimum Detectable Concentrations If a radionuclide was not detected, "<LLD" was reported as the activity. Samples were analyzed with techniques that achieved the required Lower Limits of Detection (LLD) as specified in ODCMS Table 4.8.B.1, "Radioactive Liquid Waste Sampling and Analysis" (for liquids) or ODCMS Table 4.8.C.1, "Radioactive Gaseous Waste Sampling and Analysis from Main Stack and Vent Stack" (for gases). In all cases, the LLD requirements were satisfied.

Sampling and Analysis Deviations On March 18 and 19 of 2013, the flow readings for the Emergency Service Water (ESW) instrument were not recorded, although flow remained in the system. ESW is a system which is used to supply cooling water when the normal cooling water is not available or to supply cooling water to the Emergency Diesel Generators (EDG) when operating. Flow was steady before and after the two days at 4 gpm. Therefore, this was a deviation from the requirements for a technician to record the flow rate reading by Peach Bottom procedures. There was no release of radioactivity via the ESW heat exchangers during 2013.

Violations There were no effluent release violations for the 2013 reporting period.

However, Peach Bottom did receive a non-cited violation (NCV), NRC finding 2012005-03, for an improper revision to the Licensee's ODCM in 2009 which inadvertently affected the dose calculations for subsequent years. This error was discovered by the Licensee and reported to the NRC. Corrections to the past reports are provided in this report in the Errata Section.

15

Peach Bottom Atomic Power Station Licensee: Exelon Generation Company, LLC Unit 2 and 3 PSEG Nuclear, LLC Dose Assessment Introduction Adose assessment for PBAPS was conducted from measured radioactive effluent source terms and environmental data to verify that PBAPS continues to demonstrate compliance with the limits as well as the requirement of maintaining the doses "as low as is reasonably achievable" as stated in 10 CFR 50, Appendix 1.7 This report is similar in construction to facilitate comparison with the original Appendix I submittal data to the NRC, "Radioactive Effluent Dose Assessment", Enclosure A,dated 30 September 1976.

The NRCDOSE computer software to run LADTAP and GASPAR for liquid and gaseous, respectively, radioactive effluent dose assessments was used to calculate a dose for ingestion rates, inhalation rates and other factors that estimate exposure pathways. The assumptions are found in NRC Regulatory Guide 1.109, "Calculation of Annual Doses to Man from Routine Releases of Reactor Effluents for the Purpose of Evaluating Compliance with 10 CFR Part 50, Appendix l".8 The radioactive source term used for both liquids and gases are the current radioactive source terms given in this report, Attachment 2, "Effluent Summary".

Liquid Dose Assessment Hydrologic Conditionsand ReceptorLocations of Interest PBAPS is located on the Conowingo Pond formed in the Susquehanna River by the Conowingo Dam. For 2013, the average river flow was measured to be approximately 3.34E+04 ft 3/ s. The original Appendix I submittal states the average is 3.62E+04 ft3/ s, in good agreement with the current figure.

Table 6. Receptor Locations and River Flow Regimes 9 Flow Regime (cfs)

<1.50E+04 1.50E+04 to 3.50E404 >3.SOE+04 Location Transit Dilution Transit Dilution Transit Dilution Number Description Time (h) Factor Time (h) Factor Time (h) Factor 3 1500 ft down flow of 15 1.4 3 2.2 1.5 1.7 Plant Discharge 6 Glen Cove 68 1.5 17 3.6 11 12 8 Conowingo Dam 100 2.9 25 7.7 16 14 10 Chester Water intake 70 2.9 11 5.9 4 8.3 7 http://www.nrc.gov/reading-rm/doc-collections/cfr/part05O/partO50-appi.html. accessed 9 April 2014.

8 http://pbadupws.nrc.gov/docs/ML0037/MLOO3740384.pdf accessed 9 April 2014.

9 Data are from "Radioactive Effluent Dose Assessment", Enclosure A, 30 September 1976, Table Il1-1.

16

Peach Bottom Atomic Power Station Licensee: Exelon Generation Company, LLC Unit 2 and 3 PSEG Nuclear, LLC Based on data provided in the original Dose Assessment, a special location for Sport Fishing was added because members of the public do some fishing at the 1500 ft down from the Discharge Canal location. Therefore, this location was added to the LADTAP model. This location would represent the limiting receptor for this study. No invertebrate intake was examined because invertebrate ingestion pathways are not significant close to PBAPS.

There are three separate flow regimes that were used in the original Appendix I submittal, however, the most-limiting of them (<1.50E+04 ft 3/ s) was used to calculate a dose assessment for this report because this would provide a bounding extreme for all PBAPS liquid effluents.

Therefore, although the actual average stream flow for the year was more than double the limiting case, this report will provide an upper limit for the most-limiting dose.

Liquid Effluent Dose Assessment Conclusion The limiting dose was 2.01E-06 mrem with the maximum receptor as the child liver. This is approximately five orders of magnitude less than the original Appendix I submittal for projected doses for the same pathway. The reason for this large reduction in liquid radioactive dose from the 1976 submittal is the source term. That is, PBAPS is releasing much less activity and fewer nuclides than was previously-expected.

Using the methodology in the ODCM, the limiting dose was calculated to be 8.71E-05 mrem with the maximum receptor as the child liver. This is in agreement with LADTAP output in terms of both rough order of magnitude and limiting receptor. The ODCM is more limiting (i.e.

calculates a higher dose) than LADTAP, which is considered conservative.

Therefore, PBAPS liquid radioactive effluent controls continue to demonstrate compliance with 10 CFR 50, Appendix I objectives for the purposes of keeping doses to members of the public "as low as is reasonably achievable". These limiting or maximum calculated doses are a small fraction of the limits in Appendix I.

Gaseous Dose Assessment Meteorology is an inherently-chaotic system. The dispersion of radioactive materials in the atmosphere is an intense area of study that spans more than 60 years. Nuclear power plants operate meteorological instrumentation on-site to continuously obtain weather conditions such that accurate and precise meteorological conditions can be used in assessing the radiological impact of those releases. The 'effect' of meteorology on the dispersion of radioactive materials is broken down into two major factors: "Dispersion Factor", symbol "(X/Q)" and spoken "chi-over-q", and the "Deposition Factor", symbol "(D/Q)" and spoken "d-over-q"). The X/Q is for gases whereas D/Q is for particulates and other non-gases. A complex computer code is used to determine these factors based on data for a time-period of interest. Here, these are considered in three separate runs: Historical/ Official, 1-year (2013) Annual Average and the 10-year (2004-2013) Average.

17

Peach Bottom Atomic Power Station Licensee: Exelon Generation Company, LLC Unit 2 and 3 PSEG Nuclear, LLC Limiting receptors for dose also require identification. PBAPS employs a contractor to determine, once per year, the location of real receptors (e.g. dairy operations, residents, gardens and other food-pathways of interest). This determination is the Annual Land-Use Census. When coupled to the meteorology, this provides a powerful method for the regulator and the licensee to evaluate the program for effective sampling and analysis of effluents. The inputs to the dose assessment are given in Table 7 and Table 8.

Table 7. Elevated (Main Offgas Stack) Release Receptors from the 2013 Land-Use Census X/Q undepleted GASPAR Address/ GASPAR Distance undecayed Location Dose Assessment Receptors Examined Direction Location Name Coordinates im) (s/m') D/Q (i/ma) Number (actual use) 1837 1837 N 39' 48' W 76* 16' Highest X/Q for NG plume/

N Susquehannock 12.5" 13.6" 4877 4.90E-08 3.56E-10 1 immersion dose Dr.

N 39° 44' W 76° 15' ground plane + inhalation +

SSE 870159.6" Burke Rd. 5." 47" 46.7" 1194 8.99E-09 11vegetation 9.63E-10 2 vgtto SSE 758 Orchard Rd. N 39. 44' W 76015' 2937 2.47E-08 6.44E-10 3 vegetation 3.7" 30.9" WNW 1725 Paper Mill N 39' 45' W 76o 16' 1197 9.81E-09 7.89E-10 4 Vegetation, goat meat Rd. 49.4" 54.8" W 1321 /1323 Rd. Lay N38.4" 39° 45' W 14.1"_

76. 17' 1565 6.70E-09 5.12E-10 5 Milk Table 8. Ground-Level (Reactor Building Vent) Release Receptors from the 2013 Land-Use Census X/Q undepleted GASPAR Address/ GASPAR Distance undecayed Location Dose Assessment Receptors Examined Direction Location Name Coordinates (m) (s/mr) D/Q (l/ma) Number (actual use)

N 39' 44' W 76' 15' Vegetation + inhalation +

SSE 870 Burke Rd. 59.6" 46.7" 1194 1.14E-06 1.06E-08 1 ground plane N 39° 45' W 76° 16' immersion and plume dose NW 1654 Lay Rd. 51.37" 39468" 893 1.39E-06 8.38E-09 2 (X/Q) + ground plane +

inhalation WNW 1586/1624 Lay N39' 45' W 76' 16' 885 1.31E-06 6.29E-09 3 Ground plane + Inhalation Rd. 48.31" 41.88" W 1321 /1323 Rd. Lay N38.4" 39° 45' 1 W 14.1" 76° 17' 1565 5.52E-07 2.33E-09 4 Milk WNW 1725 Paper Mill N39' 45' W 76' 16' 1228 8.85E-07 3.70E-09 5 Vegetation, goat meat Rd. 48.2" 59.1" Dose Calculationsfrom 2013 Source Term with the 2013 Meteorology and a 10-Year-Averaged Meteorology While large changes are not expected over a decade of data, one effect is a 'smoothing' of the data because it is an average effect of the prevailing winds and other weather patterns.

Therefore, while some 2013 weather that would likely impact the overall X/Q and D/Q, those periods would be diluted and a more 'substantial' meteorological picture is created. The 2013 meteorology is also provided as a comparison.

Elevated Releasesfrom the Main Offgas Stack Again, because so much of the noble gas activity is not identified in routine grab samples of noble gases due to concentrations of these gases being below detection limits, it is difficult to attribute dose (Skin or Total Body) to either Kr-87 or Kr-88 as required by the ODCM and 18

Peach Bottom Atomic Power Station Licensee: Exelon Generation Company, LLC Unit 2 and 3 PSEG Nuclear, LLC NUREG-0133 (for elevated releases only). Therefore, the doses from both scenarios are used to form a limiting case.

Table 9. Elevated Release Dose from 2013 Source Term and 2013 Meteorology Particulate and Location Plume Beta( Air )Gamma Dose Air Dose (mrad) lodines c-4(H-3 and (mrem) (mrad) C-14)

(mrem)

Kr-87 Kr-88 Kr-87 Kr-88 Kr-87 Kr-88 1 6.90E-04 1.66E-03 4.95E-04 3.54E-04 2.92E-04 1.77E-03 2.41E-01 2 3.22E-04 3.22E-04 2.28E-04 6.87E-05 1.38E-04 3.44E-04 4.46E-02 3 9.28E-04 9.06E-04 6.58E-04 1.93E-04 3.97E-04 9.67E-04 1.21E-01 4 3.49E-04 3.49E-04 2.48E-04 7.44E-05 1.49E-04 3.73E-04 4.81E-02 5 2.28E-04 2.38E-04 1.62E-04 5.08E-05 9.76E-05 2.55E-04 3.21E-02 Ground-Level Releasesfrom the ReactorBuilding Exhaust Vents All of the unidentified noble gas has been attributed to Kr-88, in accordance with the ODCM and NUREG-0133. Therefore, multiple scenarios are not required.

Table 10. Ground-Level Dose from 2013 Source Term and 2013 Meteorology Particulate Gamma Air Location Plume Total and Iodine (H- Beta Air Dose Dose (mrem) 3 and C-14) (mrad) (mrad)

(mrem) 1 1.85E-01 1.72E-01 3.82E-02 1.98E-01 2 2.64E-01 2.10E-01 5.46E-02 2.83E-01 3 1.97E-01 1.98E-01 4.06E-02 2.11E-01 4 9.37E-02 8.34E-02 1.94E-02 1.00E-01 5 1.37E-01 1.39E-01 2.84E-02 1.47E-01 19

Peach Bottom Atomic Power Station Licensee: Exelon Generation Company, LLC Unit 2 and 3 PSEG Nuclear, LLC Gaseous Radioactive Effluent Dose Assessment Review The maximum doses calculated from each meteorological input were compared. Table 11 shows these data together for direct comparison. The percentages below each release point dose indicate the percent difference in dose from the ODCM (Historical) methodology.

Table 11. Comparison of Maximum Noble Gases Doses Calculated ODCM/ ODCM/

Historical 2012 Year 2013 year 10 year Historical 2012 Year 2013 Year 10 year Total Total Total Total Body Body Body Body Beta Air Beta Air Beta Air Beta Air Dose Dose Dose Dose Dose Dose Dose Dose (mrem) (mrem) (mrem) (mrem) (mrad) (mrad) (mrad) (mrad)

Elevated Maximum 1.21E-03 1.31E-03 1.66E-03 1.32E-03 2.63E-03 8.49E-04 6.58E-04 8.54E-04 Dose Change from 8% 37% 9% -68% -75% -68%

0DCM Ground Maximum 2.24E-01 2.22E-01 2.36E-01 2.64E-01 Dose Change from -1% 5% 18%

ODCM ODCM/

Historical 2012 Year 2013 Year 10 year Gamma Gamma Gamma Gamma Air Dose Air Dose Air Dose Air Dose (mrad) (mrad) (mrad) (mrad)

Elevated Maximum 1.25E-03 1.40E-03 1.77E-03 1.41E-03 Dose Change from 12% 42% 13%

ODCM Ground Maximum 2.32E-01 2.38E-01 2.52E-01 2.83E-01 Dose Change from 3% 9% 22%

ODCM 20

Peach Bottom Atomic Power Station Licensee: Exelon Generation Company, LLC Unit 2 and 3 PSEG Nuclear, LLC Table 12. Comparison of Particulate and Iodine (H-3 and C-14) Doses Calculated ODCM/

Historical 2012 Year 2013 year 10 year Particulate and Particulate lodines and Iodine Particulate Particulate (H-3 and (H-3 and and Iodine and Iodine C-14) C-14) (H-3 and C- (H-3 and C-(mrem) mrem 14) mrem 14) mrem Elevated Maximum 5.20E-01 2.34E-01 1.44E+00 1.13E+00 Dose Change from -55% 177% 117%

0DCM Ground Maximum 2.90E-02 2.40E-01 1.94E-01 1.72E-01 Dose Change from 728% 570% 493%

ODCM Gaseous Effluent Dose The limiting dose was 1.44E+00 mrem with the maximum receptor as the child bone because of the large dose impact of carbon-14. The noble gas limiting air doses were 2.83E-01 mrad (gamma) and 5.46E-02 mrad (beta). The maximum total body dose due to noble gas effluents was 2.64E-01 mrem. These are the most limiting doses over all meteorological scenarios. The large and consistent difference in the C-14 doses from 'actual' meteorology (i.e. 2012, 2013 and the 10-year average) is because of the different methodology used to calculate C-14 dose.

Exelon Nuclear uses a more-detailed C-14 dose projection from the Electric Power Research Institute, Technical Report 1021106. Details for the assumptions used in this calculation may be found there.10 These data indicate that the limiting real receptors are still the limiting receptors and are appropriate for continued use in the program. However, because of meteorological changes over the last 10 years, it is appropriate to review the ODCM for revision to the 'historical' value such that new values are used and maintain the ODCM dose calculations as limiting. Overall, the dose values are quite small although the percent changes are large. Any changes made to the ODCM will be included in the 2014 Annual Radioactive Effluent Release Report.

10 For PBAPS uses specific Boiling Water Reactor assumptions because the fraction of C-14 that is in the CO2 form will vary based on general plant design. This is important because the major dose pathway is through photosynthesis and, therefore, only the oxide form is relevant.

21

Peach Bottom Atomic Power Station Licensee: Exelon Generation Company, LLC Unit 2 and 3 PSEG Nuclear, LLC Attachment 2: Effluent Summary 22

Peach Bottom Atomic Power Station Licensee: Exelon Generation Company, LLC Unit 2 and 3 PSEG Nuclear, LLC Gaseous Effluents - Summation of All Releases Period: January 1, 2013 through Decem ber 31, 2013 Unit: Peach Bottom Est. Total A. Fission & Activation Gases Units Quarter I Quarter 2 Quarter 3 Quarter 4 Error %

1. Total Release CN 9.06E+01 1.15E+02 1.28E+02 1.33E+02 3.51E+01
2. Average release For the Period uCi/ s 1.16E+01 1.47E+01 1.61 E+01 1.67E+01
3. Ganma Air Dose mrad 3.30E-02 4.72E-02 4.81 E-02 5.15E-02
4. Beta Air Dose rmrad 4.33E-02 6.16E-02 6.29E-02 6.72E-02
5. Percent of ODCM limit Gainm Air Dose  % 3.30E-01 4.72E-01 4.81 E-01 5.15E-01 Beta Air Dose  % 4.33E-01 6.16E-01 6.29E-01 6.72E-01 B. lodines
1. Total 1-131 ia 1.32E-04 2.37E-04 3.99E-04 6.25E-05 1.76E+01
2. Average release For the Period uCi s 1.70E-05 3.01E-05 5.02E-05 7.86E-06
3. Percent of ODCM limit  % ....

C. Particulate

1. Particulates with T1/2 > 8 days Ci 4.90E-05 1.18E-04 4.35E-04 1.93E-04 1.94E+01l
2. Average release For the Period uCi s 6.30E-06 1.50E-05 5.47E-05 2.42E-05
3. Percent of ODCM limit  % ....

D. Tritium

1. Total Release a, 1.81E+01 3.17E+01 1.96E+01 1.50E+01 1.11E+,01
2. Average release For the Period uCi s 2.33E+00 4.032+00 2.462+00 1.89E+00
3. Percent of ODCM limit  % ....

E Gross Alpha

1. Total Release Ci <LLD <LLD <LLD <LLD 4.00+E02
2. Average release For the Period uCi/ s <LLD <LLD <LLD <LLD
3. Percent of ODCM limit  % ....

F. Carbon-14

1. Total Release a 8.87E+00 8.87E+00 8.87E+00 8.87E+00 2.Average release For the Period uCi/s 1.14E+00 1.13E+00 1.12E+00 1.12E+00 G. lodine-131, 133 and 135, Tritium, Carbon-14 & Particulate 11.Organ DOse rnem 1.37E-01 1.37E,-01 1.37E-01 1.37E-01
2. Percent OCM limit  % 9.16E-01 9.16E-01 9.16E-01 9.16E-01 23

Peach Bottom Atomic Power Station Licensee: Exelon Generation Company, LLC Unit 2 and 3 PSEG Nuclear, LLC Gaseous Effluents for Elevated Release Point - Main Stack Period: January 1, 2013 through December 31, 2013 Unit: Peach Bottom N~udidAq RtIjl~nnd Cnntinunnui Mnrda Batch Mode

1. Fission Gases Unit Quarter I Quarter 2 Quarter 3 Quarter 4 Quarter I Quarter 2 Quarter 3 Quarter 4 Kr-85 ci <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD Kr-85m Ci <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD Kr-87 Ci <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD Kr-88 Ci <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD Xe-133 Ci 5.84E-01 <LLD 2.46E+00 <LLD <LLD <LLD <LLD <LLD Xe-135 Ci 1.41E+00 1.01E+00 1.25E+00 <LLD <LLD <LLD <LLD <LLD Xe-135m Ci <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD Xe- 138 Ci <LLD 2.37E+00 <LLD <LLD <LLD <LLD <LLD <LLD Ar-41 Ci <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD Unidentified Ci 2.06E+01 1.34E+01 2.25E+-1 2.41E+01 <LLD <LLD <LLD <LLD Total For Period Ci 2.26Ei-)1 1.67E401 2.63E+01 2.41E+01 <LLD <LLD <LLD <LLD
2. Iodines ,: ,~ [ ,.
  • U 1-131 a 3.19E-05 4.22E-05 1.61E-04 5.51E-05 <LLD <LLD <LLD <LLD 1-133 a 4.55E-05 1.03E-04 1.60E-04 1.01 E-04 <LLD <LLD <LLD <LLD 1-135 a <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD Total For Period Ci 7.74E-05 1.45E-04 3.20E-04 1.56E-04 <LLD <LLD <LLD <LLD
3. Particulates r T, 1 IW . - IW Sr-89 Ci 3.86E-05 3.91E-05 5.69E-05 6.12E-05 <LLD <LLD <LLD <LLD Sr-90 a <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD Cs-134 Ci <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD Cs-137 Ci <LLD 4.79E-07 <LLD <LLD <LLD <LLD <LLD <LLD Ba-140 Ci 4.35E-06 2.70E-06 4.60E-06 8.19E-05 <LLD <LLD <LLD <LLD La-140 Ci <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD Cr-51 C3 <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD Mn-54 Ci <LLD <LLD 1.82E-06 2.02E-06 <LLD <LLD <LLD <LLD Co-58 Ci <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD Co-60 Ci 6.07E-06 1.55E-05 5.85E-05 3.94E-05 <LLD <LLD <LLD <LLD Mo-99 Ci <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD Ag- 110m Ci <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD Ce-141 Ci <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD Ce-144 Ci <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD Fe-59 Ci <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD Co-57 a <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD Zn-65 Ci <LLD <LLD 5.11 E-06 7.55E-06 <LLD <LLD <LLD <LLD Ru-103 Ci <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD Au-199 Ci <LLD <LLD <LLD 5.52E-07 <LLD <LLD <LLD <LLD Total For Period Ci 4.90E-05 5.78E-05 1.27E-04 1.93E-04 <LLD <LLD <LLD <LLD
4. Tritium A i, 2 AWA & i H-3 a 1,75E+00 2.11E+00 8.33E+00 2.03E+00 <LLD <LLD <LLD <LLD
5. Gross Alpha .4w Aa M ' rB AM Gross Alpha Ci <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD
6. Carbon-14 F M, __ _ _

C-14 Ci 8.61E+00 8.61E+00 8.61E+-00 8.61-E+00 <LLD <LLD <LLD <LLD 24

Peach Bottom Atomic Power Station Licensee: Exelon Generation Company, LLC Unit 2 and 3 PSEG Nuclear, LLC Gaseous Effluents for Ground Level Release Points Unit 2 and Unit 3 Roof Vents Period: January 1, 2013 through December 31, 2013 Unit: Peach Bottom Nuclides Released Continuous Mode Batch Mode

1. Fission Gases Unit Quarter I Quarter 2 Quarter 3 Quarter 4 Quarter I Quarter 2 Quarter 3 Quarter4 Kr-85 Ci <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD Kr-85m Ci <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD Kr-87 Ci <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD Kr-88 Ci <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD Xe-133 Ci <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD Xe-135 Ci <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD Xe-i 35m Ci <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD Xe-138 Ci <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD Ar-41 Ci <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD Unidentified Ci 6.80E+01 9.88E+01 1.01E+02 1.09E+02 <LLD <LLD <LLD <LLD Total For Period Ci 6.80E+01 9.88E+01 1.O1E+02 1.09E+02 <LLD <LLD <LLD <LLD
2. Iodines V
  • 4kiJ i AkIL _4& .- Zi 1-131 Ci 1.OOE-04 1.95E-04 2.38E-04 7.36E-06 <LLD <LLD <LLD <LLD 1-133 Ci 2.75E-04 1.16E-03 9.91E-04 3.41E-05 <LLD <LLD <LLD <LLD 1-135 Ci <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD Total For Period Ci 3.76E-04 1.35E-03 1.23E-03 4.15E-05 <LLD <LLD <LLD <LLD
3. -C Particulates LL LDweD L*L WL D4W Sr-89 Ci <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD sr-90 Ci <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD Cs-134 Ci <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD Cs-137 Ci <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD Ba-140 Ci <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD La-140 Ci <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD Cr-51 Ci <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD Mn-54 Ci <LLD <LLD 7.25E-06 <LLD <LLD <LLD <LLD <LLD Co-58 Ci < LLD < LLD < LLD < LLD < LLD < LLD < LLD < LLD Co-60 Ci <LLD 6.04E-05 2.66E-04 <LLD <LLD <LLD 6.51 E-09 <LLD Mo-99 Ci <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD Ag-11 Om Ci <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD Ce-141 Ci <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD Ce-144 Ci <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD Fe-59 Ci <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD Co-57 Ci <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD Zn-65 Ci <LLD <LLD 3.49E-05 <LLD <LLD <LLD <LLD <LLD Ru-1 03 Ci <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD Total For Period Ci <LLD 6.04E-05 3.08E-04 <LLD <LLD <LLD 6.51 E-09 <LLD
4. Tritium ,:*_7! Z .  :*
  • i H-3 Ci 1.63E+01 2.96E+01 1.13E+01 1.30E+01 <LLD <LLD <LLD <LLD
5. Gross Alpha _ v____ _ _A ____ ý __ Z Gross Alpha Ci <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD
6. Carbon-14
  • W I
  • i _

C-14 Ci 2.66E-01 2.66E-01 2.66E-01 2.66E-01 <LLD <LLD <LLD <LLD 25

Peach Bottom Atomic Power Station Licensee: Exelon Generation Company, LLC Unit 2 and 3 PSEG Nuclear, LLC Liquid Effluents - Summation of All Releases Parin,4. lnHr I 9nflhi *,. fn,=r=h. 'It 9nlt' I Inif- Pnr Rnf Est Total A. Fission & Activation Gases Units Quarter I Quarter 2 Quarter 3 Quarter 4 Error %

1. Total Release (not including tritium, gases & alpha) Ci <LLD 2.98E-06 4.81E-05 5.03E-05 2.11E+01
2. Average diluted concentration for the Period ijCi/ mL <LLD 4.42E-15 7.30E-14 8.74E-14
3. Percent of applicable limit Total Body Dose  % 2.33E-04 3.56E-04 2.02E-03 1.54E-04 Organ Dose  % 7.OOE-05 1.30E-04 6.16E-04 5.71 E-05 Est Total B. Tritium Error %
1. Total Release Ci 7.23E-01 1.03E+00 5.50E+00 3.67E-01 6.40E+00
2. Average diluted concentration for the Period pCi/ mL 1.18E-09 1.52E-09 8.34E-09 6.38E-10
3. Percent of applicable limit  % 1.18E-05 1.52E-05 8.34E-05 6.38E-06 (10x 10CFR20 Limit of 1.OOE-03 uCi/ mL; ODCMS 3.8.B.1.a)

Est Total C. Dissolved & Entrained Gases Error %

1. Total Release Ci <LLD <LLD <LLD <LLD 2.11E+01
2. Average diluted concentration for the Period Ci/ mL <LLD <LLD <LLD <LLD
3. Percent of ODCM limit  % O.OOE+00 O.OOE+00 O.OOE+00 O.OOE+00 Est. Total D. Gross Alpha Activity Error %
1. Total Release Ci <LLD <LLD <LLD <LLD 2.30E+01 E. Volume of Waste Released (prior to dilution) Liters 8.58E+07 8.69E+07 8.90E+07 8.78E+07 F. Volume of Dilution Water Used During Period Liters 6.16E+11 6.74E+11 6.59E+11 5.76E+11 26

Peach Bottom Atomic Power Station Licensee: Exelon Generation Company, LLC Unit 2 and 3 PSEG Nuclear, LLC Liquid Effluents Release Points - Liquid Radwaste, RHR Leaks and Tritium Leaks Period: January 1, 2013 through December 13, 2013 Unit: Peach Bottom Nuclides Released Continuous Mode Batch Mode Unit Quarter I Quarter 2 Quarter 3 Quarter 4 Quarter I Quarter 2 Quarter 3 Quarter 4 Sr-89 Ci <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD Sr-90 Ci <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD Cs-134 Ci <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD Cs-137 Ci <LLD 9.53E-08 4.41E-07 4.79E-07 <LLD 1.04E-06 <LLD <LLD 1-131 Ci <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD Co-58 Ci <LLD <LLD 1.65E-07 <LLD <LLD <LLD <LLD <LLD Co-60 Ci <LLD 1.30E-06 2.83E-05 3.26E-05 <LLD 1.85E-07 9.05E-06 <LLD Fe-59 Ci <LLD <LLD 7.02E-08 <LLD <LLD <LLD <LLD <LLD Zn-65 Ci <LLD 2.25E-07 1.83E-06 1.39E-06 <LLD <LLD <LLD <LLD Mn-54 Ci <LLD 1.28E-07 4.06E-06 4.09E-06 <LLD <LLD <LLD <LLD Cr-51 Ci <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD Zr-95 Ci <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD Nb-95 Ci <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD Mo-99 Ci <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD Tc-99m Ci <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD Ba-140 Ci <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD La-140 Ci <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD Ce-141 Ci <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD Ag-1 10m Ci <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD Fe-55 Ci <LLD <LLD 4.17E-06 1.17E-05 <LLD <LLD <LLD <LLD Sb-124 Ci <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD H-3 Ci 7.14E-01 4.01E-01 3.67E-01 3.67E-01 9.63E-03 6.26E-01 5.13E+00 1.55E-04 P-32 Ci <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD Total for Period Ci 7.14E-01 4.01E-01 3.67E-01 3.67E-01 9.63E-03 6.26E-01 5.13E+00 1.55E-04 Kr-7 C-i -*<D- LL <*LD LD ,LLD D <LLD <LLD Kr-87 Ci <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD Xae-131m Ci <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD XAe-133 Ci <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD YGo-s35 Ci <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD Gross Alpha Ci <LLD <LLD <LLD <LLD <LLD <LLD <LLD <LLD 27

Peach Bottom Atomic Power Station Licensee: Exelon Generation Company, LLC Unit 2 and 3 PSEG Nuclear, LLC Attachment 3: Solid Waste and Irradiated Fuel Shipments 28

Peach Bottom Atomic Power Station Licensee: Exelon Generation Company, LLC Unit 2 and 3 PSEG Nuclear, LLC Solid Waste Shipped

1. Type of Waste Volume Units or Activity Est. error %

a: Spent resin, Filters, Sludges, Evaporator Bottoms, etc. m3 6.55E+01 Ci 1.26E+02 25 b: Dry compressible waste, Contaminated Equipment, etc. m3 1.83E+03 Ci 1.01E+01 25 c: Irradiated components, Control rods, etc. m3 N/A"1 Ci N/A N/A d: Other (describe) Oil m3 1.02E+01 Ci 2.85E-03 25 Irradiated components" is not applicable because there were no shipments in 2013.

29

Peach Bottom Atomic Power Station Licensee: Exelon Generation Company, LLC Unit 2 and 3 PSEG Nuclear, LLC

2. Estimate of Major Nuclide Composition (by type of waste)
a. Spent-Resin, Filters, Sludges, Evaporator
  • Bottoms,° etc.

Abundance Activity Abundance Nuclide (no cutoff) (Ci) Nuclide (no cutoff) Activity (Ci)

H-3 0.016% 2.01E-02 1-129 0.001% 1.37E-03 C-14 0.263% 3.30E-01 1-131 0.000% 1.70E-18 K-40 0.025% 3.18E-02 1-135 0.000% 3.18E-47 Cr-51 0.000% 1.97E-05 Cs-134 0.091% 1.15E-01 Mn-54 2.568% 3.23E+00 Cs-137 8.997% 1.13E+01 Fe-55 11.724% 1.47E+01 Ba-140 0.000% 1.43E-12 Fe-59 0.000% 3.01E-04 La-140 0.000% 3.37E-46 Co-57 0.001% 1.88E-03 Ce-141 0.000% 1.17E-06 Co-58 0.029% 3.65E-02 Ce-144 0.378% 4.75E-01 Co-60 64.219% 8.08E+01 Hf-181 0.000% 8.28E-07 Ni-63 2.780% 3.50E+00 Pu-238 0.000% 4.25E-04 Zn-65 8.506% 1.07E+01 Pu-239 0.000% 4.20E-05 Sr-89 0.000% 6.23E-05 Pu-241 0.081% 1.02E-01 Sr-90 0.013% 1.69E-02 Am-241 0.000% 4.35E-04 Zr-95 0.001% 8.63E-04 Cm-242 0.000% 1.11E-05 Nb-95 0.000% 1.43E-05 Cm-243 0.001% 8.98E-04 Tc-99 0.010% 1.28E-02 Cm-244 0.000% 4.50E-05 Ag-110m 0.295% 3.71E-01 30

Peach Bottom Atomic Power Station Licensee: Exelon Generation Company, LLC Unit 2 and 3 PSEG Nuclear, LLC

b. Dry. Comoressible Waste. Contaminated Eauioment. etc.

Abundance Activity Abundance Nuclide (no cutoff) (Ci) Nuclide (no cutoff) Activity (Ci)

H-3 0.587% 5.90E-02 1-129 0.014% 1.45E-03 C-14 0.317% 3.19E-02 Cs-134 0.166% 1.67E-02 Cr-51 1.373% 1.38E-01 Cs-137 7.804% 7.85E-01 Mn-54 4.013% 4.03E-01 Ba-137m 0.090% 9.02E-03 Fe-55 17.002% 1.71E+00 Ce-141 0.015% 1.54E-03 Fe-59 0.096% 9.61E-03 Ce-144 0.159% 1.60E-02 Co-58 0.729% 7.33E-02 Pr-144 0.017% 1.68E-03 Co-60 48.981% 4.92E+00 Pu-238 0.000% 2.26E-05 Ni-63 1.782% 1.79E-01 Pu-239 0.000% 3.39E-06 Zn-65 16.529% 1.66E+00 Pu-241 0.012% 1.16E-03 Sr-89 0.020% 1.98E-03 Am-241 0.000% 1.02E-05 Tc-99 0.132% 1.33E-02 Cm-242 0.000% 6.82E-06 Sb-124 0.001% 5.13E-05

c. Irradiated Components, Control Rods, etc. d. Other: Oil.

Abundance Activity1 Abundance Activity Nuclide (no cutoff) (Ci) Nuclide (no cutoff) (Ci)

None for 2013 H-3 0.85% 2.42E-05 C-14 1.20% 3.41E-05 Co-60 4.81% 1.37E-04 Ni-63 43.52% 1.24E-03 Tc-99 0.55% 1.58E-05 1-129 0.12% 3.44E-06 Cs-137 4.04% 1.15E-04 Ce-144 44.92% 1.28E-03

3. Solid Waste Disposition Number of Mode of shipments Transportation Destination 16 highway Energy Solutions CWF (Clive, UT) 4 highway Energy Solutions BWF (Clive, UT) 55 highway Energy Solutions (Oak Ridge, TN) 7 highway Energy Solutions (Kingston, TN)

Irradiated Fuel Shipments No shipment of irradiated fuel was madeduring the reporting period of 2013.

Changes to Process Control Program (PCP)

No changes to the Radioactive Waste Process Control Program were made during the reporting period of 2013.

31

Peach Bottom Atomic Power Station Licensee: Exelon Generation Company, LLC Unit 2 and 3 PSEG Nuclear, LLC Attachment 4: Radiological Impact on Man 32

Peach Bottom Atomic Power Station Licensee: Exelon Generation Company, LLC Unit 2 and 3 PSEG Nuclear, LLC Radiological Impact on Man Location Distance Direction  % of Applicable Effluent Applicable Organ Estirrated Dose Age Group (neters) (tow ard) Lift Lift _ Unit Gamma - Air Noble Gas GaDosAr Dose 2.05E-01 All 1.10E+03 SSE 1.02E+00 2.00E+O1 nrad Nbble Gas Beta - Air Dose 1.41E-01 All 1.10E+03 SSE 3.511-01 4.002+01 rn-ad Noble Gas Total Body 2.25E-01 All 1.10E+03 SSE 2.25E+00 1.00E+01 rnrem (ganma)

Nloble Gas Skin (Beta) 2.93E-01 All 1.10E+03 SSE 9.77E-01 3.00E+01 orem Gaseous Iodine, Particulate, Carbon- Bone 5.49E-01 Child 1.10E+03 SSE 1.83E+00 3.00E+01 rrrem 14 &Tritium Gaseous Iodine, Particulate & Tritium Thyroid 1.25,-02 Ifant 1.102+03 SSE 4.17E-02 3.00E-O1 mrem Luid Toal Body 8.29E-05 Chid 1.38E-03 6.OOE+00 nrem Site Boundary Liquid Liver 8.71 E-05 Child 4.35E-04 2.0012+01 rmrem Direct Radiation Total Body O.00E-+00 All 1.15E+03 SSE 0.00E+00 2.20E+01 rrrem 40 CFR 190 Doses 40 CFR Part 190 Complance Total Dose Total Body 2.25E-01 All 1.15E+03 SSE 9.006-01 2.50E+01 mrem Total Dose Thyroid 1.25E-02 All 1.155E+03 SSE 1.672-02 7.50E+01 mrrem Total Dose Bone 5.50E-01 All 1.15E+03 SSE 2.20E+00 2.50E+01 mrem Total Dose Total Body 2.25S-01 All 1.15E+03 SSE 7.50E+00 3.0OE+00 nrem Total Dose Bone 5.49E-01 All 1.15E+03 SSE 1.83E+01 3.00E+00 rmrem Total Dose Thyroid 2.17601 All 1.15E+03 SSE 3.956-01 5.502&01 mTrem Liquid and Gaseous Effluent Radiation Monitors and Instrumentation Flow readings for the Emergency Service Water Radiation Monitor (ESW RM) were not obtained on 18 March 2013 and 19 March 2013. These readings are required to be obtained daily. The purpose of the ESW RM is to indicate an abnormal leakage of radioactive water from Peach Bottom Atomic Power Station since ESW can potentially become contaminated. There was no detectable activity released from ESW heat exchangers in 2013.

33

Peach Bottom Atomic Power Station Licensee: Exelon Generation Company, LLC Unit 2 and 3 PSEG Nuclear, LLC Attachment 5: Meteorological Data 34

Peach Bottom Atomic Power Station Licensee: Exelon Generation Company, LLC Unit 2 and 3 PSEG Nuclear, LLC Peach Bottom Nuclear Station Period of Record: January - March 2013 Stability Class - Extremely Unstable - 150Ft-33Ft Delta-T (F)

Winds Measured at 33 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total 1 0 0 0 0 N 0 1 0 0 0 0 NNE 0 3 3 0 0 0 0 NE 3 1 4 0 0 0 0 ENE 3 0 3 1 0 0 0 E 0 3 4 4 0 0 0 ESE 0 4 8 1 0 0 0 SE 0 0 1 0 0 0 0 SSE 0 0 0 0 0 0 0 S 0 0 0 0 0 0 0 SSW 0 0 0 0 0 0 0 SW 0 0 0 0 2 0 0 WSW 0 0 2 0 0 0 0 W 0 0 0 0 0 0 0 WNW 0 0 0 0 3 0 0 NW 0 0 3 3 0 0 0 NNW 0 0 3 0 0 0 0 Variable 0 0 0 Total 6 12 9 5 0 0 32 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 0 35

Peach Bottom Atomic Power Station Licensee: Exelon Generation Company, LLC Unit 2 and 3 PSEG Nuclear, LLC Peach Bottom Nuclear Station Period of Record: January - March 2013 Stability Class - Moderately Unstable - 150Ft-33Ft Delta-T (F)

Winds Measured at 33 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 0 NNE 0 NE 1 ENE 5 E 2 ESE 1 SE 0 SSE 0 S 0 SSW 0 SW 0 WSW 0 W 0 WNW 0 0 13 NW 0 0 8 15 0 0 23 NNW 0 3 12 7 2 0 24 Variable 0 0 0 0 0 0 0 Total 9 23 33 36 2 0 103 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stabili ty class: 0 Hours of missing stability measurements in all sta bility classes: 0 36

Peach Bottom Atomic Power Station Licensee: Exelon Generation Company, LLC Unit 2 and 3 PSEG Nuclear, LLC Peach Bottom Nuclear Station Period of Record: January - March 2013 Stability Class - Slightly Unstable - 150Ft-33Ft Delta-T (F)

Winds Measured at 33 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 0 NNE 0 NE 0 ENE 3 E 5 ESE 1 SE 0 SSE 0 S 0 SSW 0 SW 0 WSW 0 W 0 0 10 WNW 0 1 5 10 0 0 16 NW 0 3 18 25 0 0 46 NNW 0 5 26 17 2 0 50 Variable 0 0 0 0 0 0 0 Total 9 20 63 56 2 0 150 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 0 37

Peach Bottom Atomic Power Station Licensee: Exelon Generation Company, LLC Unit 2 and 3 PSEG Nuclear, LLC Peach Bottom Nuclear Station Period of Record: January - March 2013 Stability Class - Neutral - 150Ft-33Ft Delta-T (F)

Winds Measured at 33 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 17 35 12 6 0 0 70 NNE 15 31 0 3 2 0 51 NE 19 11 5 0 0 0 35 ENE 31 17 3 0 0 0 51 E 14 14 0 0 0 0 28 ESE 4 8 0 0 0 0 12 SE 3 39 11 0 0 0 53 SSE 4 21 9 0 0 0 34 S 4 22 14 5 0 0 45 SSW 2 5 3 1 0 0 11 SW 3 6 3 0 0 0 12 WSW 3 11 10 0 0 0 24 W 3 29 53 12 6 0 103 WNW 4 70 110 30 1 0 215 NW 6 60 113 36 5 0 220 NNW 3 55 127 24 2 0 211 Variable 0 0 0 0 0 0 0 Total 135 434 473 117 16 0 1175 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 2 Hours of missing stability measurements in all stability classes: 0 38

Peach Bottom Atomic Power Station Licensee: Exelon Generation Company, LLC Unit 2 and 3 PSEG Nuclear, LLC Peach Bottom Nuclear Station Period of Record: January - March 2013 Stability Class - Slightly Stable - 150Ft-33Ft Delta-T (F)

Winds Measured at 33 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 5 1 0 0 0 0 6 NNE 15 0 0 0 0 0 15 NE 7 0 0 0 0 0 7 ENE 6 0 0 0 0 0 6 E 15 5 0 0 0 0 20 ESE 18 11 0 0 0 0 29 SE 14 26 8 0 0 0 48 SSE 5 17 5 0 0 0 27 S 10 20 3 0 0 0 33 SSW 4 15 0 1 0 0 20 SW 10 12 1 0 0 0 23 WSW 9 31 6 1 0 0 47 W 11 71 9 0 0 0 91 WNW 16 53 24 1 1 0 95 NW 8 20 10 0 0 0 38 NNW 8 17 3 0 0 0 28 Variable 0 0 0 0 0 0 0 Total 161 299 69 3 1 0 533 Hours of calm in this stability class: 1 Hours of missing wind measurements in this stability class: 3 Hours of missing stability measurements in all stability classes: 0 39

Peach Bottom Atomic Power Station Licensee: Exelon Generation Company, LLC Unit 2 and 3 PSEG Nuclear, LLC Peach Bottom Nuclear Station Period of Record: January - March 2013 Stability Class - Moderately Stable - 150Ft-33Ft Delta-T (F)

Winds Measured at 33 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 8 0 0 8 NNE 6 0 0 6 NE 2 0 0 2 ENE 11 0 0 11 E 13 0 0 14 ESE 8 0 0 11 SE 1 0 0 2 SSE 2 1 0 3 S 2 0 0 2 SSW 1 0 0 2 SW 1 0 0 3 WSW 6 8 0 0 0 0 14 W 9 4 1 0 0 0 14 WNW 5 1 0 0 0 0 6 NW 9 1 0 0 0 0 10 NNW 1 1 0 0 0 0 2 Variable 1 0 0 0 0 0 1 Total 86 23 2 0 0 0 1il Hours of calm in this stability class: 6 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 0 40

Peach Bottom Atomic Power Station Licensee: Exelon Generation Company, LLC Unit 2 and 3 PSEG Nuclear, LLC Peach Bottom Nuclear Station Period of Record: January - March 2013 Stability Class - Extremely Stable - 150Ft-33Ft Delta-T (F)

Winds Measured at 33 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 0 NNE 1 NE 1 ENE 3 E 2 ESE 1 SE 2 SSE 1 S 1 SSW 2 SW 3 WSW 5 W 8 WNW 5 NW 2 NNW 0 Variable 1 Total 38 0 40 Hours of calm in this stability class: 4 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 0 41

Peach Bottom Atomic Power Station Licensee: Exelon Generation Company, LLC Unit 2 and 3 PSEG Nuclear, LLC Peach Bottom Nuclear Station Period of Record: January - March 2013 Stability Class - Extremely Unstable - 316Ft-33Ft Delta-T (F)

Winds Measured at 320 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 0 NNE 0 NE 0 ENE 0 E 0 ESE 0 SE 0 SSE 0 S 0 SSW 0 SW 0 WSW 0 W 0 WNW 0 NW 0 NNW 0 Variable 0 Total Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 0 42

Peach Bottom Atomic Power Station Licensee: Exelon Generation Company, LLC Unit 2 and 3 PSEG Nuclear, LLC Peach Bottom Nuclear Station Period of Record: January - March 2013 Stability Class - Moderately Unstable - 316Ft-33Ft Delta-T (F)

Winds Measured at 320 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 0 0 0 NNE 0 0 0 NE 0 0 0 ENE 0 0 2 E 0 0 0 ESE 0 0 2 SE 0 2 SSE 0 0 S 0 0 SSW 0 0 SW 0 3 WSW 0 0 W 0 2 WNW 0 7 NW 0 2 NNW 0 0 Variable 0 0 Total 0 3 20 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 0 43

Peach Bottom Atomic Power Station Licensee: Exelon Generation Company, LLC Unit 2 and 3 PSEG Nuclear, LLC Peach Bottom Nuclear Station Period of Record: January - March 2013 Stability Class - Slightly Unstable - 316Ft-33Ft Delta-T (F)

Winds Measured at 320 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 0 NNE 0 NE 0 ENE 0 E 0 ESE 0 SE 0 SSE 0 S 0 SSW 0 SW 0 WSW 0 W 0 WNW 0 8 19 2 31 NW 0 0 1 5 6 3 15 NNW 0 1 2 4 3 0 10 Variable 0 0 0 0 0 0 0 Total 0 8 14 28 35 6 91 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 0 44

Peach Bottom Atomic Power Station Licensee: Exelon Generation Company, LLC Unit 2 and 3 PSEG Nuclear, LLC Peach Bottom Nuclear Station Period of Record: January - March 2013 Stability Class - Neutral - 316Ft-33Ft Delta-T (F)

Winds Measured at 320 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 16 44 9 5 9 85 NNE 16 20 3 0 2 42 NE 12 15 1 0 5 37 ENE 19 16 4 1 0 47 E 10 11 5 4 4 36 ESE 9 10 12 3 0 38 SE 9 39 12 0 0 61 SSE 9 30 9 2 0 51 S 9 17 10 9 1 48 SSW 8 12 8 0 1 29 SW 8 9 8 0 0 25 WSW 7 10 14 3 1 36 W 6 27 73 13 17 138 WNW 7 37 115 78 22 261 NW 12 65 173 61 20 331 NNW 16 64 63 36 10 194 Variable 0 0 0 0 0 0 Total 34 173 426 519 215 92 1459 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 0 45

Peach Bottom Atomic Power Station Licensee: Exelon Generation Company, LLC Unit 2 and 3 PSEG Nuclear, LLC Peach Bottom Nuclear Station Period of Record: January - March 2013 Stability Class - Slightly Stable - 316Ft-33Ft Delta-T (F)

Winds Measured at 320 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 0 5 5 0 0 0 10 NNE 1 3 2 0 0 0 6 NE 1 0 3 0 0 0 4 ENE 2 6 0 0 0 0 8 E 1 6 6 0 0 0 13 ESE 0 1 6 0 0 0 7 SE 3 5 14 5 0 0 27 SSE 0 12 15 8 1 0 36 S 0 4 30 13 1 0 48 SSW 0 7 19 11 1 1 39 SW 2 7 8 5 1 0 23 WSW 0 6 9 17 0 0 32 W 2 3 13 27 2 0 47 WNW 0 6 7 39 11 0 63 NW 1 5 33 27 2 0 68 NNW 1 7 13 1 0 0 22 Variable 0 0 0 0 0 0 0 Total 14 83 183 153 19 1 453 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 0 46

Peach Bottom Atomic Power Station Licensee: Exelon Generation Company, LLC Unit 2 and 3 PSEG Nuclear, LLC Peach Bottom Nuclear Station Period of Record: January - March 2013 Stability Class - Moderately Stable - 316Ft-33Ft Delta-T (F)

Winds Measured at 320 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total 0 0 0 0 N 1 0 1 0 0 0 0 NNE 0 3 3 0 0 0 0 NE 1 1 2 1 0 0 0 ENE 0 0 1 5 0 0 0 E 2 2 9 3 0 0 0 ESE 0 3 6 SE 0 1 4 1 0 0 6 SSE 0 2 9 0 0 0 11 S 0 3 10 0 1 0 14 SSW 0 0 8 1 0 0 9 SW 0 3 1 0 0 0 4 WSW 0 2 4 1 0 0 7 W 0 0 2 2 1 0 5 WNW 0 2 0 0 0 0 2 NW 0 3 4 1 0 0 8 NNW 0 0 2 1 0 0 3 Variable 0 0 0 0 0 0 0 Total 4 25 53 7 2 0 91 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability cl asses: 0 47

Peach Bottom Atomic Power Station Licensee: Exelon Generation Company, LLC Unit 2 and 3 PSEG Nuclear, LLC Peach Bottom Nuclear Station Period of Record: January - March 2013 Stability Class - Extremely Stable - 316Ft-33Ft Delta-T (F)

Winds Measured at 320 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total 0 0 0 0 N 0 0 0 0 0 0 0 NNE 0 1 1 0 0 0 0 NE 0 0 0 0 0 0 0 ENE 0 0 0 0 0 0 0 E 0 0 0 5 0 0 0 ESE 0 1 6 2 0 0 0 SE 0 0 2 1 0 0 0 SSE 0 2 3 1 2 0 0 S 1 5 9 1 0 0 0 SSW 0 2 3 1 0 0 0 0 SW 1 2 1 1 0 0 0 WSW 0 2 1 0 0 0 0 W 0 1 0 0 0 0 WNW 0 0 0 5 0 0 0 NW 0 2 7 5 0 0 0 NNW 0 0 5 0 0 0 0 Variable 0 0 0 Total 2 16 21 2 0 0 41 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 0 48

Peach Bottom Atomic Power Station Licensee: Exelon Generation Company, LLC Unit 2 and 3 PSEG Nuclear, LLC Peach Bottom Nuclear Station Period of Record: April - June 2013 Stability Class - Extremely Unstable - 150Ft-33Ft Delta-T (F)

Winds Measured at 33 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total 1 0 0 0 0 N 5 6 0 0 0 0 NNE 0 9 9 0 0 0 0 NE 4 8 12 0 0 0 0 ENE 11 16 27 0 0 0 0 E 8 12 20 1 0 0 0 ESE 1 17 19 5 0 0 0 SE 0 16 21 4 0 0 0 SSE 0 9 13 S 0 0 1 3 0 0 4 SSW 0 0 0 0 0 0 0 SW 0 0 1 0 0 0 1 WSW 0 0 0 0 0 0 0 W 0 0 0 0 0 0 0 WNW 0 0 2 1 0 0 3 NW 0 0 0 0 0 0 0 NNW 0 3 3 0 0 0 6 Variable 0 0 0 0 0 0 0 Total 25 95 17 4 0 0 141 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 104 49

Peach Bottom Atomic Power Station Licensee: Exelon Generation Company, LLC Unit 2 and 3 PSEG Nuclear, LLC Peach Bottom Nuclear Station Period of Record: April - June 2013 Stability Class - Moderately Unstable - 150Ft-33Ft Delta-T (F)

Winds Measured at 33 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 0 7 2 0 0 0 9 NNE 1 3 1 0 0 0 5 NE 4 0 0 0 0 0 4 ENE 7 6 0 0 0 0 13 E 4 6 0 0 0 0 10 ESE 5 8 0 0 0 0 13 SE 1 6 1 0 0 0 8 SSE 0 6 5 2 0 0 13 S 0 8 9 3 0 0 20 SSW 0 2 3 0 0 0 5 SW 0 4 3 0 0 0 7 WSW 0 3 2 1 0 0 6 W 0 6 3 0 0 0 9 WNW 0 3 3 11 0 0 17 NW 0 4 11 7 0 0 22 NNW 0 6 9 4 0 0 .19 Variable 0 0 0 0 0 0 0 Total 22 78 52 28 0 0 180 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 104 50

Peach Bottom Atomic Power Station Licensee: Exelon Generation Company, LLC Unit 2 and 3 PSEG Nuclear, LLC Peach Bottom Nuclear Station Period of Record: April - June 2013 Stability Class - Slightly Unstable - 150Ft-33Ft Delta-T (F)

Winds Measured at 33 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total 1 0 0 0 Ii N 0 10 1 0 0 0 NNE 0 4 5 0 0 0 0 NE 1 1 2 0 0 0 0 ENE 4 4 8 0 0 0 0 E 4 3 7 0 0 0 0 1 ESE 0 1 3 0 0 0 SE 1 7 3 0 0 0 SSE 0 4 7 S 0 7 7 2 0 0 16 SSW 0 1 1 0 0 0 2 SW 0 0 3 0 0 0 3 WSW 0 1 4 0 0 0 5 W 0 3 3 1 0 0 7 WNW 0 1 9 5 0 0 15 NW 0 4 5 3 0 0 12 NNW 0 5 5 1 0 0 11 Variable 0 0 0 0 0 0 0 Total 10 56 45 12 0 0 123 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 104 51

Peach Bottom Atomic Power Station Licensee: Exelon Generation Company, LLC Unit 2 and 3 PSEG Nuclear, LLC Peach Bottom Nuclear Station Period of Record: April - June 2013 Stability Class - Neutral - 150Ft-33Ft Delta-T (F)

Winds Measured at 33 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total 13 0 0 0 N 7 10 30 3 0 0 0 NNE 6 8 17 0 0 0 0 NE 15 6 21 0 0 0 0 ENE 35 3 38 1 0 0 0 E 16 26 43 1 0 0 0 ESE 15 29 45 7 0 0 0 SE 6 43 56 SSE 8 34 24 3 0 0 69 S 7 34 35 11 0 0 87 SSW 2 21 11 0 0 0 34 SW 1 15 11 0 0 0 27 WSW 2 18 9 2 0 0 31 W 5 11 19 3 0 0 38 WNW 0 18 21 5 0 0 44 NW 4 8 34 11 0 0 57 NNW 4 16 43 17 0 0 80 Variable 0 0 0 0 0 0 0 Total 133 300 232 52 0 0 717 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stabili ty class: 0 Hours of missing stability measurements in all stability cl asses: 104 52

Peach Bottom Atomic Power Station Licensee: Exelon Generation Company, LLC Unit 2 and 3 PSEG Nuclear, LLC Peach Bottom Nuclear Station Period of Record: April - June 2013 Stability Class - Slightly Stable - 150Ft-33Ft Delta-T (F)

Winds Measured at 33 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 4 7 1 1 0 0 13 NNE 20 1 1 0 0 0 22 NE 15 4 0 0 0 0 19 ENE 24 7 0 0 0 0 31 E 30 9 0 0 0 0 39 ESE 24 23 0 0 0 0 47 SE 27 20 3 0 0 0 50 SSE 26 39 8 0 0 0 73 S 33 41 13 2 0 0 89 SSW 27 20 3 0 0 0 50 SW 12 19 0 0 0 0 31 WSW 21 25 3 0 0 0 49 W 25 35 8 0 0 0 68 WNW 11 34 5 0 0 0 50 NW 8 22 6 0 0 0 36 NNW 8 16 5 0 0 0 29 Variable 0 0 0 0 0 0 0 Total 315 322 56 3 0 0 696 Hours of calm in this stability class: 1 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 104 53

Peach Bottom Atomic Power Station Licensee: Exelon Generation Company, LLC Unit 2 and 3 PSEG Nuclear, LLC Peach Bottom Nuclear Station Period of Record: April - June 2013 Stability Class - Moderately Stable - 150Ft-33Ft Delta-T (F)

Winds Measured at 33 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 2 NNE 3 NE 1 ENE 1 E 6 ESE 9 SE 6 SSE 3 S 5 SSW 4 SW 7 WSW 15 15 5 0 0 0 35 W 16 15 0 0 0 0 31 WNW 8 5 0 0 0 0 13 NW 3 5 0 0 0 0 8 NNW 5 1 0 0 0 0 6 Variable 0 0 0 0 0 0 0 Total 94 47 5 0 0 0 146 Hours of calm in this stability class: 2 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 104 54

Peach Bottom Atomic Power Station Licensee: Exelon Generation Company, LLC Unit 2 and 3 PSEG Nuclear, LIC Peach Bottom Nuclear Station Period of Record: April - June 2013 Stability Class - Extremely Stable - 150Ft-33Ft Delta-T (F)

Winds Measured at 33 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 1 0 1 NNE 0 0 0 NE 1 0 1 ENE 0 0 0 E 2 0 2 ESE 6 0 6 SE 2 0 2 SSE 1 0 S 0 0 0 SSW 1 0 1 SW 1 0 1 WSW 12 12 0 24 W 7 9 0 0 0 0 16 WNW 5 2 0 0 0 0 7 NW 3 1 0 0 0 0 4 NNW 3 1 0 0 0 0 4 Variable 4 0 0 0 0 0 4 Total 49 25 0 0 0 0 74 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 104 55

Peach Bottom Atomic Power Station Licensee: Exelon Generation Company, LLC Unit 2 and 3 PSEG Nuclear, LLC Peach Bottom Nuclear Station Period of Record: April - June 2013 Stability Class - Extremely Unstable - 316Ft-33Ft Delta-T (F)

Winds Measured at 320 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 0 0 0 0 0 0 0 NNE 0 0 1 0 0 0 1 NE 0 4 5 0 0 0 9 ENE 0 2 2 0 0 0 4 E 0 9 10 0 25 ESE 5 17 0 23 SE 0 12 SSE 2 S 4 SSW 0 SW 0 WSW 2 W 0 WNW 1 NW 1 NNW 8 Variable 0 Total 0 20 55 15 0 92 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 303 56

Peach Bottom Atomic Power Station Licensee: Exelon Generation Company, LLC Unit 2 and 3 PSEG Nuclear, LLC Peach Bottom Nuclear Station Period of Record: April - June 2013 Stability Class - Moderately Unstable - 316Ft-33Ft Delta-T (F)

Winds Measured at 320 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total 1 4 0 0 0 N 0 5 1 0 0 0 NNE 0 2 3 1 0 0 0 NE 0 3 4 1 0 0 0 ENE 0 6 7 2 0 0 0 E 0 2 4 ESE 0 2 9 2 0 0 13 SE 0 0 8 4 0 0 12 SSE 0 0 3 2 1 0 6 S 0 0 6 6 4 0 16 SSW 0 0 1 1 0 0 2 SW 0 0 1 2 0 0 3 WSW 0 0 0 3 1 0 4 W 0 0 0 2 2 0 4 WNW 0 0 0 1 12 2 15 NW 1 0 1 1 0 0 3 NNW 0 2 6 1 0 0 9 Variable 0 0 0 0 0 0 0 Total 1 18 44 25 20 2 110 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 303 57

Peach Bottom Atomic Power Station Licensee: Exelon Generation Company, LLC Unit 2 and 3 PSEG Nuclear, LLC Peach Bottom Nuclear Station Period of Record: April - June 2013 Stability Class - Slightly Unstable - 316Ft-33Ft Delta-T (F)

Winds Measured at 320 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 0 2 5 0 0 0 7 NNE 0 1 1 0 0 0 2 NE 1 2 1 1 0 0 5 ENE 0 2 2 0 0 0 4 E 1 3 2 1 0 0 7 ESE 1 4 7 1 0 0 13 SE 0 1 7 10 0 0 18 SSE 0 0 4 0 1 0 5 S 0 4 3 15 4 1 27 SSW 0 2 4 3 0 0 9 SW 0 0 2 4 0 0 6 WSW 0 0 1 3 0 0 4 W 0 0 3 6 2 1 12 WNW 0 1 4 11 9 1 26 NW 0 3 6 1 2 0 12 NNW 0 4 10 6 0 0 20 Variable 0 0 0 0 0 0 0 Total 3 29 62 62 18 3 177 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 1 Hours of missing stability measurements in all stability classes: 303 58

Peach Bottom Atomic Power Station Licensee: Exelon Generation Company, LLC Unit 2 and 3 PSEG Nuclear, LLC Peach Bottom Nuclear Station Period of Record: April - June 2013 Stability Class - Neutral - 316Ft-33Ft Delta-T (F)

Winds Measured at 320 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 0 4 10 9 1 0 24 NNE 2 4 8 3 0 0 17 NE 1 7 7 3 0 0 18 ENE 2 6 10 0 0 0 18 E 5 15 20 15 13 0 68 ESE 2 16 35 38 1 2 94 SE 6 18 56 29 1 0 110 SSE 3 6 33 18 0 0 60 S 1 14 50 43 12 1 121 SSW 4 11 29 13 0 0 57 SW 1 8 21 9 2 0 41 WSW 0 9 13 12 1 0 35 W 1 6 17 19 1 0 44 WNW 0 6 12 13 18 3 52 NW 1 3 10 17 10 5 46 NNW 0 9 14 34 5 1 63 Variable 0 0 0 0 0 0 0 Total 29 142 345 275 65 12 868 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 15 Hours of missing stability measurements in all stability classes: 303 59

Peach Bottom Atomic Power Station Licensee: Exelon Generation Company, LLC Unit 2 and 3 PSEG Nuclear, LLC Peach Bottom Nuclear Station Period of Record: April - June 2013 Stability Class - Slightly Stable - 316Ft-33Ft Delta-T (F)

Winds Measured at 320 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 2 2 1 5 NNE 1 0 0 3 NE 3 1 0 4 ENE 10 7 1 18 E 9 5 0 16 ESE 8 3 2 14 SE 8 10 3 22 SSE 13 17 9 42 S 14 38 27 84 SSW 6 25 10 43 SW 9 14 8 35 WSW 10 11 14 39 W 9 13 17 44 WNW 4 10 17 40 NW 3 11 12 28 NNW 5 13 8 26 Variable 0 0 0 0 Total 22 114 180 129 18 0 463 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 22 Hours of missing stability measurements in all stability classes: 303 60

Peach Bottom Atomic Power Station Licensee: Exelon Generation Company, LLC Unit 2 and 3 PSEG Nuclear, LLC Peach Bottom Nuclear Station Period of Record: April - June 2013 Stability Class - Moderately Stable - 316Ft-33Ft Delta-T (F)

Winds Measured at 320 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18. 19-24 > 24 Total N 0 0 NNE 1 0 NE 0 0 ENE 0 0 E 0 0 ESE 0 0 SE 1 0 SSE 0 0 S 1 0 SSW 1 0 SW 0 0 16 WSW 0 1 9 8 0 0 18 W 0 2 7 6 0 0 15 WNW 0 3 4 1 0 0 8 NW 1 0 8 2 0 0 11 NNW 0 1 5 3 0 0 9 Variable 0 0 0 0 0 0 0 Total 5 21 51 22 0 0 99 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 7 Hours of missing stability measurements in all stability classes: 303 61

Peach Bottom Atomic Power Station Licensee: Exelon Generation Company, LLC Unit 2 and 3 PSEG Nuclear, LLC Peach Bottom Nuclear Station Period of Record: April - June 2013 Stability Class - Extremely Stable - 316Ft-33Ft Delta-T (F)

Winds Measured at 320 Feet Wind Speed (in mph)

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

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW NW NNW Variable Total 3 14 3 5 0 0 25 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 2 Hours of missing stability measurements in all stability classes: 303 62

Peach Bottom Atomic Power Station Licensee: Exelon Generation Company, LLC Unit 2 and 3 PSEG Nuclear, LLC Peach Bottom Nuclear Station Period of Record: July - September 2013 Stability Class - Extremely Unstable - 150Ft-33Ft Delta-T (F)

Winds Measured at 33 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 3 17 0 0 0 0 20 NNE 10 14 0 0 0 0 24 NE 10 0 0 0 0 0 10 ENE 12 1 0 0 0 0 13 E 9 6 0 0 0 0 15 ESE 3 2 0 0 0 0 5 SE 1 14 3 0 0 0 18 SSE 0 16 6 0 22 S 0 4 11 0 16 SSW 0 3 5 0 8 SW 0 1 0 0 1 WSW 0 2 0 0 2 W 0 0 0 0 0 WNW 0 5 0 0 5 NW 0 1 0 0 1 NNW 1 9 2 0 13 Variable 0 0 0 0 0 Total 49 95 27 2 0 0 173 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 1 Hours of missing stability measurements in all stability classes: 4 63

Peach Bottom Atomic Power Station Licensee: Exelon Generation Company, LLC Unit 2 and 3 PSEG Nuclear, LLC Peach Bottom Nuclear Station Period of Record: July - September 2013 Stability Class - Moderately Unstable - 150Ft-33Ft Delta-T (F)

Winds Measured at 33 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 2 21 0 0 0 0 23 NNE 7 5 0 0 0 0 12 NE 1 0 0 0 0 0 1 ENE 2 0 0 0 0 0 2 E 4 0 0 0 0 0 4 ESE 3 0 0 0 0 0 3 SE 2 4 1 0 0 0 7 SSE 0 6 5 0 0 0 11 S 0 17 10 1 0 0 28 SSW 0 3 4 0 0 0 7 SW 0 4 5 0 0 0 9 WSW 0 8 2 0 0 0 10 W 0 5 1 0 0 0 6 WNW 0 7 0 0 0 0 7 NW 0 9 4 0 0 0 13 NNW 2 29 33 3 0 0 67 Variable 0 0 0 0 0 0 0 Total 23 118 65 4 0 0 210 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 4 64

Peach Bottom Atomic Power Station Licensee: Exelon Generation Company, LLC Unit 2 and 3 PSEG Nuclear, LLC Peach Bottom Nuclear Station Period of Record: July - Septemb er 2013 Stability Class - Slightly Unstable - 15 OFt-33Ft Delta-T (F)

Winds Measured at 33 Feet Wind Speed (in mph Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 5 9 0 0 0 0 14 NNE 2 2 0 0 0 0 4 NE 3 0 0 0 0 0 3 ENE 1 0 0 0 0 0 1 E 0 1 0 0 0 0 1 ESE 3 1 0 0 0 0 4 SE 0 1 1 0 0 0 2 SSE 0 5 4 0 0 0 9 S 0 11 5 0 0 0 16 SSW 1 5 1 0 0 0 7 SW 1 7 4 0 0 0 12 WSW 0 5 1 0 0 0 6 W 0 7 0 0 0 0 7 WNW 2 4 0 0 0 0 6 NW 0 3 4 0 0 0 7 NNW 1 19 9 0 0 0 29 Variable 0 0 0 0 0 0 0 Total 19 80 29 0 0 0 128 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 4 65

Peach Bottom Atomic Power Station Licensee: Exelon Generation Company, LLC Unit 2 and 3 PSEG Nuclear, LLC Peach Bottom Nuclear Station Period of Record: July - September 2013 Stability Class - Neutral - 150Ft-33Ft Delta-T (F)

Winds Measured at 33 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 9 35 8 0 52 NNE 11 5 0 0 16 NE 4 0 0 0 4 ENE 11 0 0 0 11 E 7 0 0 0 7 ESE 9 1 0 0 10 SE 6 14 1 0 21 SSE 12 76 22 0 110 S 18 45 13 0 76 SSW 7 18 2 0 27 SW 8 14 7 0 29 WSW 12 30 8 0 50 W 8 8 2 0 18 WNW 10 12 4 0 26 NW 5 27 8 0 40 NNW 11 60 19 0 90 Variable 1 0 0 0 1 Total 149 345 94 0 588 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 4 66

Peach Bottom Atomic Power Station Licensee: Exelon Generation Company, LLC Unit 2 and 3 PSEG Nuclear, LLC Peach Bottom Nuclear Station Period of Record: July - September 2013 Stability Class - Slightly Stable - 150Ft-33Ft Delta-T (F)

Winds Measured at 33 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 27 24 3 0 0 0 54 NNE 10 11 3 0 0 0 24 NE 6 0 0 0 0 0 6 ENE 9 0 0 0 0 0 9 E 9 0 0 0 0 0 9 ESE 15 1 0 0 0 0 16 SE 19 6 0 0 0 0 25 SSE 37 40 0 0 0 0 77 S 49 45 3 0 0 0 97 SSW 42 16 0 0 0 0 58 SW 33 20 0 0 0 0 53 WSW 30 25 0 0 0 0 55 W 35 25 1 0 0 0 61 WNW 21 46 2 0 0 0 69 NW 27 47 3 0 0 0 77 NNW 18 35 0 0 0 0 53 Variable 1 0 0 0 0 0 1 Total 388 341 15 0 0 0 744 Hours of calm in this stability class: 2 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 4 67

Peach Bottom Atomic Power Station Licensee: Exelon Generation Company, LLC Unit 2 and 3 PSEG Nuclear, LLC Peach Bottom Nuclear Station Period of Record: July - September 2013 Stability Class - Moderately Stable - 150Ft-33Ft Delta-T (F)

Winds Measured at 33 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 1 1 0 0 0 0 2 NNE 0 0 0 0 0 0 0 NE 0 0 0 0 0 0 0 ENE 0 0 0 0 0 0 0 E 1 0 0 0 0 0 1 ESE 3 0 0 0 0 0 3 SE 1 0 0 0 0 0 1 SSE 3 0 0 0 0 0 3 S 11 1 0 0 0 0 12 SSW 10 2 0 0 0 0 12 SW 19 5 0 0 0 0 24 WSW 28 18 0 0 0 0 46 W 42 28 0 0 0 0 70 WNW 20 15 0 0 0 0 35 NW 4 6 0 0 0 0 10 NNW 2 2 0 0 0 0 4 Variable 0 0 0 0 0 0 0 Total 145 78 0 0 0 0 223 Hours of calm in this stability class: 2 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 4 68

Peach Bottom Atomic Power Station Licensee: Exelon Generation Company, LLC Unit 2 and 3 PSEG Nuclear, LLC Peach Bottom Nuclear Station Period of Record: July - Septembe r 2013 Stability Class - Extremely Stable - 150 Ft-33Ft Delta-T (F)

Winds Measured at 33 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total 0 0 0 0 N 0 0 0 0 0 0 0 NNE 0 0 0 0 0 0 0 NE 0 0 0 0 0 0 0 ENE 0 0 0 0 0 0 0 E 0 0 0 0 0 0 0 ESE 0 0 0 0 0 0 0 SE 0 0 0 0 0 0 0 SSE 0 0 0 0 0 0 0 S 0 0 0 0 0 0 0 SSW 0 1 1 0 0 0 0 SW 10 16 26 0 0 0 0 WSW 28 45 73 0 0 0 0 W 12 14 26 0 0 0 0 WNW 2 5 7 0 0 0 0 NW 0 0 0 0 0 0 0 NNW 0 0 0 0 0 0 0 Variable 0 0 0 Total 52 81 0 0 0 0 133 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability cl*asses: 4 69

Peach Bottom Atomic Power Station Licensee: Exelon Generation Company, LLC Unit 2 and 3 PSEG Nuclear, LLC Peach Bottom Nuclear Station Period of Record: July - September 2013 Stability Class - Extremely Unstable - 316Ft-33Ft Delta-T (F)

Winds Measured at 320 Feet Wind Speed (in mph)

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

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW NW NNW Variable Total 0 10 13 0 0 0 23 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 3 Hours of missing stability measurements in all stability classes: 161 70

Peach Bottom Atomic Power Station Licensee: Exelon Generation Company, LLC Unit 2 and 3 PSEG Nuclear, LLC Peach Bottom Nuclear Station Period of Record: July - September 2013 Stability Class - Moderately Unstable - 316Ft-33Ft Delta-T (F)

Winds Measured at 320 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total 1 0 0 0 0 N 0 1 2 0 0 0 NNE 0 0 2 0 0 0 0 NE 0 2 2 0 0 0 0 ENE 0 3 3 0 0 0 0 E 0 2 2 0 0 0 0 ESE 0 0 0 2 0 0 0 SE 0 1 3 0 0 0 0 SSE 0 0 0 0 0 0 0 S 0 0 0 0 1 0 0 SSW 0 0 1 0 0 0 0 SW 0 0 0 0 0 0 0 WSW 0 0 0 0 0 0 0 W 0 0 0 0 0 0 0 WNW 0 0 0 0 0 0 0 NW 0 0 0 0 0 0 0 NNW 0 0 0 0 0 0 0 Variable 0 0 0 Total 0 9 4 1 0 0 14 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 5 Hours of missing stability measurements in all stability classes: 161 71

Peach Bottom Atomic Power Station Licensee: Exelon Generation Company, LLC Unit 2 and 3 PSEG Nuclear, LLC Peach Bottom Nuclear Station Period of Record: July - September 2013 Stability Class - Slightly Unstable - 316Ft-33Ft Delta-T (F)

Winds Measured at 320 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total 2 0 0 0 N 0 2 4 1 0 0 0 NNE 0 3 4 1 0 0 0 NE 0 0 1 0 0 0 0 ENE 1 2 3 0 0 0 0 E 0 2 2 0 0 0 0 ESE 0 1 1 6 0 0 0 SE 0 4 10 SSE 0 0 4 1 0 0 5 S 0 0 5 2 1 0 8 SSW 0 4 2 2 0 0 8 SW 0 0 0 0 0 0 0 WSW 0 0 0 0 0 0 0 W 0 0 0 0 0 0 0 WNW 0 2 0 0 0 0 2 NW 0 1 1 0 2 0 4 NNW 0 4 1 0 0 0 5 Variable 0 0 0 0 0 0 0 Total 1 25 23 5 3 0 57 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 4 Hours of missing stability measurements in all stability classes: 161 72

Peach Bottom Atomic Power Station Licensee: Exelon Generation Company, LLC Unit 2 and 3 PSEG Nuclear, LLC Peach Bottom Nuclear Station Period of Record: July - September 2013 Stability Class - Neutral - 316Ft-33Ft Delta-T (F)

Winds Measured at 320 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 0 20 34 17 1 0 72 NNE 3 4 11 4 0 23 NE 2 11 4 0 0 0 17 ENE 2 5 2 0 0 0 9 E 2 4 4 0 0 0 10 ESE 2 7 5 5 0 0 19 SE 3 12 27 8 0 0 50 SSE 0 6 44 16 0 0 66 S 0 24 73 40 3 0 140 SSW 3 17 28 2 0 0 50 SW 3 31 23 7 0 0 64 WSW 2 15 25 8 1 0 51 W 4 16 12 3 0 0 35 WNW 2 12 12 4 0 0 30 NW 2 18 27 24 5 0 76 NNW 2 38 49 27 2 0 118 Variable 0 0 0 0 0 0 0 Total 32 240 380 165 13 0 830 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 78 Hours of missing stability measurements in all stability classes: 161 73

Peach Bottom Atomic Power Station Licensee: Exelon Generation Company, LLC Unit 2 and 3 PSEG Nuclear, LLC Peach Bottom Nuclear Station Period of Record: July - September 2013 Stability Class - Slightly Stable - 316Ft-33Ft Delta-T (F)

Winds Measured at 320 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 1 7 20 8 0 0 36 NNE 1 6 17 10 5 0 39 NE 1 8 7 2 0 0 18 ENE 1 8 4 0 0 0 13 E 2 5 0 0 0 0 7 ESE 4 13 0 0 0 0 17 SE 1 1.5 10 4 0 0 30 SSE 6 1.1 32 6 0 0 55 S 3 8 68 35 0 0 114 SSW 2 13 42 14 1 0 72 SW 1 29 34 11 0 0 75 WSW 3 16 19 5 0 0 43 W 2 13 17 7 0 0 39 WNW 1 3 8 4 0 0 16 NW 3 8 19 30 5 0 65 NNW 2 7 19 10 0 0 38 Variable 1 0 0 0 0 0 1 Total 35 170 316 146 11 0 678 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 66 Hours of missing stability measurements in all stability classes: 161 74

Peach Bottom Atomic Power Station Licensee: Exelon Generation Company, LLC Unit 2 and 3 PSEG Nuclear, LLC Peach Bottom Nuclear Station Period of Record: July - September 2013 Stability Class - Moderately Stable - 316Ft-33Ft Delta-T (F)

Winds Measured at 320 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 1 1 8 0 0 0 10 NNE 0 0 0 0 0 0 0 NE 0 0 0 0 0 0 0 ENE 0 0 0 0 0 0 0 E 1 1 0 0 0 0 2 ESE 0 1 0 0 0 0 1 SE 1 5 0 0 0 0 6 SSE 0 5 0 0 0 0 5 S 3 11 3 1 0 0 18 SSW 2 5 1 0 0 0 8 SW 2 5 6 2 0 0 15 WSW 2 2 6 7 0 0 17 W 1 5 14 14 0 0 34 WNW 2 2 10 9 0 0 23 NW 0 1 14 12 0 0 27 NNW 1 2 6 1 0 0 10 Variable 2 0 0 0 0 0 2 Total 18 46 68 46 0 0 178 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 63 Hours of missing stability measurements in all stability classes: 161 75

Peach Bottom Atomic Power Station Licensee: Exelon Generation Company, LLC Unit 2 and 3 PSEG Nuclear, LLC Peach Bottom Nuclear Station Period of Record: July - September 2013 Stability Class - Extremely Stable - 316Ft-33Ft Delta-T (F)

Winds Measured at 320 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 0 NNE 0 NE 0 ENE 0 E 0 ESE 0 SE 0 SSE 0 S 0 SSW 1 SW 0 WSW 0 W 0 WNW 0 NW 0 NNW 0 Variable 0 Total 1 0 13 4 0 0 18 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 30 Hours of missing stability measurements in all stability classes: 161 76

Peach Bottom Atomic Power Station Licensee: Exelon Generation Company, LLC Unit 2 and 3 PSEG Nuclear, LLC Peach Bottom Nuclear Station Period of Record: October - December2013 Stability Class - Extremely Unstable - 150Ft-33Ft Delta-T (F)

Winds Measured at 3 3 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 3 0 0 0 0 0 3 NNE 1 5 0 0 0 0 6 NE 5 2 0 0 0 0 7 ENE 10 1 0 0 0 0 11 E 10 2 0 0 0 0 12 ESE 3 5 0 0 0 0 8 SE 0 2 0 0 0 0 2 SSE 0 1 4 0 0 0 5 S 0 0 5 0 0 0 5 SSW 0 0 0 5 0 0 5 SW 0 0 0 0 0 0 0 WSW 0 0 0 0 0 0 0 W 0 0 0 0 0 0 0 WNW 0 1 0 0 0 0 1 NW 0 0 0 0 0 0 0 NNW 0 1 0 0 0 0 1 Variable 0 0 0 0 0 0 0 Total 32 20 9 5 0 0 66 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 3 77

Peach Bottom Atomic Power Station Licensee: Exelon Generation Company, LLC Unit 2 and 3 PSEG Nuclear, LLC Peach Bottom Nuclear Station Period of Record: October - December2013 Stability Class - Moderately Unstable - 150Ft-33Ft Delta-T (F)

Winds Measured at 33 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 0 NNE 4 NE 9 ENE 9 E 5 ESE 3 SE 1 SSE 0 S 0 SSW 0 SW 0 WSW 0 W 0 WNW 0 3 10 1 0 0 14 NW 0 2 10 4 0 0 16 NNW 1 5 4 3 0 0 13 Variable 0 0 0 0 0 0 0 Total 32 24 44 12 0 0 112 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 3 78

Peach Bottom Atomic Power Station Licensee: Exelon Generation Company, LLC Unit 2 and 3 PSEG Nuclear, LLC Peach Bottom Nuclear Station Period of Record: October - December2013 Stability Class - Slightly Unstable - 150Ft-33Ft Delta-T (F)

Winds Measured at 33 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 2 NNE 1 NE 5 ENE 5 E 3 ESE 0 SE 1 SSE 0 S 0 SSW 0 SW 0 WSW 0 W 0 WNW 0 NW 0 0 10 5 1 0 16 NNW 0 3 4 7 0 0 14 Variable 0 0 0 0 0 0 0 Total 17 21 34 15 1 0 88 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 3 79

Peach Bottom Atomic Power Station Licensee: Exelon Generation Company, LLC Unit 2 and 3 PSEG Nuclear, LLC Peach Bottom Nuclear Station Period of Record: October - December2013 Stability Class - Neutral - 150Ft-33Ft Delta-T (F)

Winds Measured at 33 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 25 48 11 0 0 0 84 NNE 26 25 1 0 0 0 52 NE 21 1 0 0 0 0 22 ENE 20 5 0 0 0 0 25 E 28 6 0 0 0 0 34 ESE 14 7 0 0 0 0 21 SE 7 25 3 0 0 0 35 SSE 13 40 25 2 0 0 80 S 7 33 24 9 0 0 73 SSW 1 7 3 0 0 0 11 SW 4 9 6 0 0 0 19 WSW 7 14 9 2 0 0 32 W 3 14 41 5 0 0 63 WNW 4 28 56 11 0 0 99 NW 6 29 72 30 0 0 137 NNW 1 38 51 11 0 0 101 Variable 0 0 0 0 0 0 0 Total 187 329 302 70 0 0 888 Hours of calm in this stability class: 3 Hours of missing wind measurements in this stability class: 19 Hours of missing stability measurements in all stability cl asses: 3 80

Peach Bottom Atomic Power Station Licensee: Exelon Generation Company, LLC Unit 2 and 3 PSEG Nuclear, LLC Peach Bottom Nuclear Station Period of Record: October - December2013 Stability Class - Slightly Stable - 15 0Ft-33Ft Delta-T (F)

Winds Measured at 33 Feet Wind Speed (in mph Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 23 7 0 30 NNE 22 32 0 54 NE 15 2 0 17 ENE 22 2 0 24 E 18 4 0 22 ESE 28 4 0 32 SE 31 22 0 53 SSE 22 30 0 56 S 19 19 0 43 SSW 10 5 0 16 SW 11 18 0 30 WSW 7 74 0 88 W 9 63 0 83 WNW 13 30 0 51 NW 17 16 0 35 NNW 17 10 0 27 Variable 0 0 0 0 Total 284 338 39 0 0 0 661 Hours of calm in this stability class: 4 Hours of missing wind measurements in this stability class: 12 Hours of missing stability measurements in all stability classes: 3 81

Peach Bottom Atomic Power Station Licensee: Exelon Generation Company, LLC Unit 2 and 3 PSEG Nuclear, LLC Peach Bottom Nuclear Station Period of Record: October - Decemnher2013 Stability Class - Moderately Stable - 15 OFt-33Ft Delta-T (F)

Winds Measured at 33 Feet Wind Speed (in mph Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 4 0 0 0 0 4 NNE 5 0 0 0 0 5 NE 6 0 0 0 0 6 ENE 7 0 0 0 0 7 E 12 0 0 0 0 12 ESE 16 1 0 0 0 17 SE 10 2 0 0 0 12 SSE 4 1 0 0 0 5 S 6 0 0 0 0 6 SSW 9 1 0 0 0 10 SW 16 7 0 0 0 23 WSW 30 31 5 0 0 66 W 27 9 0 0 0 36 WNW 11 4 0 0 0 15 NW 8 2 0 0 0 10 NNW 9 0 0 0 0 9 Variable 1 0 0 0 0 1 Total 181 58 5 0 0 0 244 Hours of calm in this stability class: 3 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 3 82

Peach Bottom Atomic Power Station Licensee: Exelon Generation Company, LLC Unit 2 and 3 PSEG Nuclear, LLC Peach Bottom Nuclear Station Period of Record: October - December2013 Stability Class - Extremely Stable - 150Ft-33Ft Delta-T (F)

Winds Measured at 33 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 3 3 NNE 1 1 NE 3 3 ENE 8 8 E 13 13 ESE 13 15 SE 2 2 SSE 2 2 S 3 3 SSW 4 4 SW 6 8 WSW 23 25 W 7 7 WNW 5 5 NW 0 0 NNW 4 4 Variable 0 0 Total 97 6 0 0 0 0 103 Hours of calm in this stability class: 2 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 3 83

Peach Bottom Atomic Power Station Licensee: Exelon Generation Company, LLC Unit 2 and 3 PSEG Nuclear, LLC Peach Bottom Nuclear Station Period of Record: October - December2013 Stability Class - Extremely Unstable - 316Ft-33Ft Delta-T (F)

Winds Measured at 320 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total 0 0 0 0 N 0 0 0 0 0 0 0 NNE 0 0 0 1 0 0 0 NE 0 0 1 1 0 0 0 ENE 0 1 2 0 0 0 0 E 0 0 0 1 0 0 0 ESE 0 1 2 1 0 0 0 SE 0 0 1 0 0 0 0 SSE 0 0 0 0 0 0 0 S 0 0 0 0 0 0 0 SSW 0 0 0 0 0 0 0 SW 0 0 0 0 0 0 0 WSW 0 0 0 0 0 0 0 W 0 0 0 0 0 0 0 WNW 0 0 0 0 0 0 0 NW 0 0 0 0 0 0 0 NNW 0 0 0 0 0 0 0 Variable 0 0 0 Total 0 2 4 0 0 0 6 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 3 84

Peach Bottom Atomic Power Station Licensee: Exelon Generation Company, LLC Unit 2 and 3 PSEG Nuclear, LLC Peach Bottom Nuclear Station Period of Record: October - December2013 Stability Class - Moderately Unstable - 316Ft-33Ft Delta-T (F)

Winds Measured at 320 Feet Wind Speed (in mph)

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

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW NW NNW Variable Total Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 3 85

Peach Bottom Atomic Power Station Licensee: Exelon Generation Company, LLC Unit 2 and 3 PSEG Nuclear, LLC Peach Bottom Nuclear Station Period of Record: October - December2013 Stability Class - Slightly Unstable - 316Ft-33Ft Delta-T (F)

Winds Measured at 320 Feet Wind Speed (in mph)

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

NNE NE ENE E

ESE SE SSE S

SSW SW WSW W

WNW NW NNW Variable Total 0 8 4 8 4 0 24 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 3 86

Peach Bottom Atomic Power Station Licensee: Exelon Generation Company, LLC Unit 2 and 3 PSEG Nuclear, LLC Peach Bottom Nuclear Station Period of Record: October - December2013 Stability Class - Neutral - 316Ft-33Ft Delta-T (F)

Winds Measured at 320 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 5 12 18 32 2 0 69 NNE 5 17 17 24 0 0 63 NE 10 17 13 7 0 0 47 ENE 11 20 16 1 0 0 48 E 7 14 4 5 0 0 30 ESE 2 22 19 1 0 0 44 SE 3 32 22 2 0 0 59 SSE 1 12 24 19 3 0 59 S 0 11 19 21 20 3 74 SSW 0 5 13 10 3 0 31 SW 1 5 16 11 2 0 35 WSW 1 7 12 15 5 2 42 W 1 5 13 38 23 3 83 WNW 0 6 22 67 47 8 150 NW 1 4 13 69 44 11 142 NNW 1 15 22 47 9 1 95 Variable 1 0 0 0 0 0 1 Total 50 204 263 369 158 28 1072 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 3 87

Peach Bottom Atomic Power Station Licensee: Exelon Generation Company, LLC Unit 2 and 3 PSEG Nuclear, LLC Peach Bottom Nuclear Station Period of Record: October - December2013 Stability Class - Slightly Stable - 316Ft-33Ft Delta-T (F)

Winds Measured at 320 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 3 6 8 2 0 0 19 NNE 3 7 7 4 1 0 22 NE 3 10 7 22 2 0 44 ENE 9 12 7 2 0 0 30 E 2 21 12 4 0 0 39 ESE 0 17 6 0 2 0 25 SE 8 36 24 1 0 0 69 SSE 3 15 15 16 0 0 49 S 2 25 45 23 11 0 106 SSW 2 9 14 10 1 0 36 SW 6 14 14 20 2 0 56 WSW 4 9 17 38 5 0 73 W 2 6 16 71 10 0 105 WNW 1 2 14 25 8 0 50 NW 1 6 14 24 4 0 49 NNW 0 4 12 6 0 0 22 Variable 0 0 0 0 0 0 0 Total 49 199 232 268 46 0 794 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 2 Hours of missing stability measurements in all stability classes: 3 88

Peach Bottom Atomic Power Station Licensee: Exelon Generation Company, LLC Unit 2 and 3 PSEG Nuclear, LLC Peach Bottom Nuclear Station Period of Record: October - December2013 Stability Class - Moderately Stable - 316Ft-33Ft Delta-T (F)

Winds Measured at 320 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 0 0 0 1 0 0 1 NNE 4 2 0 0 0 0 6 NE 3 2 3 0 0 0 8 ENE 2 4 0 0 0 0 6 E 0 3 0 0 0 0 3 ESE 1 4 2 0 0 0 7 SE 1 4 4 0 0 0 9 SSE 2 1 3 0 0 0 6 S 2 13 10 0 0 0 25 SSW 2 10 10 3 0 0 25 SW 4 21 11 1 2 0 39 WSW 3 7 11 7 2 0 30 W 1 2 8 9 0 0 20 WNW 0 4 6 1 1 0 12 NW 1 3 5 0 0 0 9 NNW 2 0 1 0 0 0 3 Variable 0 0 0 0 0 0 0 Total 28 80 74 22 5 0 209 Hours of calm in this stability class: 0 Hours of missing wind measurements in this stability class: 0 Hours of missing stability measurements in all stability classes: 3 89

Peach Bottom Atomic Power Station Licensee: Exelon Generation Company, LLC Unit 2 and 3 PSEG Nuclear, LLC Peach Bottom Nuclear Station Period of Record: October - December2013 Stability Class - Extremely Stable - 316Ft-33Ft Delta-T (F)

Winds Measured at 320 Feet Wind Speed (in mph)

Wind Direction 1-3 4-7 8-12 13-18 19-24 > 24 Total N 0 1 0 1 NNE 0 2 0 2 NE 2 1 0 3 ENE 0 0 0 0 E 4 0 1 5 ESE 0 1 0 1 SE 0 0 0 0 SSE 0 1 0 1 S 2 4 3 9 SSW 0 5 18 24 SW 2 5 13 21 WSW 1 1 0 2 W 2 3 1 15 WNW 0 0 2 2 NW 0 0 1 1 NNW 0 1 1 2 Variable 0 0 0 0 Total 13 25 40 11 0 0 89 Hours of calm in this stability class: 1 Hours of missing wind measurements in this stability class: 1 Hours of missing stability measurements in all stability classes: 3 90

Peach Bottom Atomic Power Station Licensee: Exelon Generation Company, LLC Unit 2 and 3 PSEG Nuclear, LLC Appendix A: ERRATA Data Section 91

Peach Bottom Atomic Power Station Licensee: Exelon Generation Company, LLC Unit 2 and 3 PSEG Nuclear, LLC Correction to Previously-Reported Ground-Level Noble Gas Doses In 2009, a revision to the PBAPS ODCM was approved and implemented which included a technical change to the ground-level historical maximum Dispersion Factor (X/Q, or "chi-over-Q") which, when factored with the noble as release rate, calculates the maximum dose rate at or beyond the site boundary. Because of the chaotic nature of meteorological conditions such as wind direction, speed and turbulence, the X/Q becomes a useful measurement of the radiological impact of radioactive materials when dispersed in the atmosphere when averaged over a long-time period (which at Peach Bottom is defined as a 10-year period). Thus, the X/Q becomes a parameter to describe the location of prevailing winds, the speed of those winds that carry radioactive materials and the rate of divergence at locations of interest. This value is not corrected for radioactive decay (that is, there is no credit taken for natural radioactive decay by the noble gases and is, therefore, a conservative projection of dose) at each location, by Peach Bottom convention. The Elevated Release X/Q was not changed.

The ODCM was revised with a number that could not be independently verified. Therefore, in 2012, the latest 10-year average data were used to develop a new historical X/Q rather than return to the previous value. These data for comparison are provided in Table 13.

Table 13. Ground-Level Dispersion Factor Change Previous Historical New Historical Approximate Average X/Q Average X/Q Change (s/ m') (s/ m)

X/Q (ground-level, 9.19E-07 1.12E-06 +21.87%

noble gas)

Using the updated value, PBAPS then recalculated all doses that were affected by this change.

Since all projected doses are a direct, linear relationship to the X/Q. this 21.87% increase was observed with each value recalculated using the new historical X/Q value.

Although the dose for each category was revised upward, it remains well-below the limits in the ODCM. Limits can be found on Table 1, on page 8.

2008 Total Body Skin Dose Gamma Air Beta Air (mrem) (mrem) Dose Dose (mrad) (mrad)

Elevated Release (Meteorology Not Changed) 1.45E-03 3.52E-03 1.51E-03 2.74E-03 Ground-Level Release, Previous Meteorology 7.28E-02 9.46E-02 7.53E-02 5.10E-02 Ground-Level Release, Updated Meteorology 8.88E-02 1.15E-01 9.17E-02 6.22E-02 Total, Previous Meteorology 7.43E-02 9.81E-02 7.68E-02 5.37E-02 Total, Updated Meteorology 9.03E-02 1.19E-01 9.32E-02 6.49E-02 92

Peach Bottom Atomic Power Station Licensee: Exelon Generation Company, LLC Unit 2 and 3 PSEG Nuclear, LLC 2009 Total Body Skin Dose Gamma Air Beta Air (mrem) (mrem) Dose Dose (mrad) (mrad)

Elevated Release (Meteorology Not Changed) 1.40E-03 3.14E-03 1.46E-03 2.37E-03 Ground-Level Release, Previous Meteorology 2.66E-01 3.45E-01 2.75E-01 1.86E-01 Ground-Level Release, Updated Meteorology 3.24E-01 4.21E-01 3.35E-01 2.27E-01 Total, Previous Meteorology 2.67E-01 3.48E-01 2.76E-01 1.88E-01 Total, Updated Meteorology 3.25E-01 4.24E-01 3.36E-O1 2.29E-01 2010 Total Body Skin Dose Gamma Air Beta Air (mrem) (mrem) Dose Dose (mrad) (mrad)

Elevated Release (Meteorology Not Changed) 7.81E-04 2.23E-03 8.14E-04 1.97E-03 Ground-Level Release, Previous Meteorology 2.75E-01 3.57E-01 2.84E-01 1.93E-01 Ground-Level Release, Updated Meteorology 3.35E-01 4.35E-01 3.46E-01 2.35E-01 Total, Previous Meteorology 2.76E-01 3.59E-01 2.85E-01 1.95E-01 Total, Updated Meteorology 3.36E-01 4.37E-O1 3.47E-O1 2.37E-O1 2011 Total Body Skin Dose Gamma Air Beta Air (mrem) (mrem) Dose Dose (mrad) (mrad)

Elevated Release (Meteorology Not Changed) 1.04E-03 2.58E-03 1.08E-03 2.27E-03 Ground-Level Release, Previous Meteorology 2.10E-01 2.74E-01 2.17E-01 1.47E-01 Ground-Level Release, Updated Meteorology 2.56E-01 3.33E-01 2.65E-01 1.79E-01 Total, Previous Meteorology 2.11E-01 2.77E-01 2.18E-01 1.49E-01 Total, Updated Meteorology 2.57E-01 3.36E-01 2.66E-O1 1.81E-O1 93

Peach Bottom Atomic Power Station Licensee: Exelon Generation Company, LLC Unit 2 and 3 PSEG Nuclear, LLC Correction to Previously-Reported Gaseous Particulate and Iodine Activity Released in Reporting Periods 2007 and 2008 The following are the corrected sections of the 2007 and 2008 Annual Radioactive Effluent Release Report Sections for the "Gaseous Effluents - Summation of All Releases" which is the algebraic sum of the Elevated Releases and the Ground-Level Releases reported for each quarter. These errors were discovered and submitted to the licensee's Corrective Action Program (CAP) for disposition.

Previously, the reports for 2007 and 2008 reported "Particulate" activity (fission and activation products that are not gases) which included "Iodine" activity (for Peach Bottom, this is defined as the radioactive iodines 1-131, 1-133 and 1-135). Additionally, it was discovered that the radioactive iodine activity only reported 1-131 (contrary to the table, all three radioactive iodines must be included). The following is a correction to those sections of their respective reports.

Gaseous Effluents - Summation of All Releases Corrected Period: January 1, 2007 through December 31, 2007 Unit: Peach Bottom Units Quarter I Quarter 2 Quarter 3 Quarter 4 Error %

B. lodines

1. Total 1-131 Ci 8.OOE-03 9.68E-03 1.39E-02 3.79E-03 1.76E+01
2. Average release For the Period pCi/ s 1.03E-03 1.23E-03 1.75E-03 4.77E-04
3. Percent of ODCM limit  % ....

C. Particulate

1. Particulates with T1/2 > 8 days Ci 1.69E-03 1.61E-03 1.18E-03 1.05E-03 1.94E+01
2. Average release For the Period pCi/s 2.18E-04 2.04E-04 1.48E-04 1.32E-04
3. Percent of ODCM limit  % ....

Gaseous Effluents - Summation of All Releases Corrected Period: January 1, 2008 through December 31, 2008 Unit: Peach Bottom Units Quarter I Quarter 2 Quarter 3 Quarter 4 Error %

B. lodines

1. Total 1-131 Ci 4.95E-03 9.03E-03 1.11E-02 3.69E-03 1.76E+01
2. Average release For the Period pCi/s 6.30E-04 1.15E-03 1.39E-03 4.64E-04
3. Percent of ODCM limit  %*....

C. Particulate

1. Particulates with Tl/2 > 8 days Ci 1.87E-03 1.45E-03 6.22E-04 4.37E-04 1.94E+01
2. Average release For the Period
3. Percent of ODCM limit 1- pCi/ s 2.37E-04 1.84E-04 7.83E-05 5.50E-05 94

Peach Bottom Atomic Power Station Licensee: Exelon Generation Company, LLC Unit 2 and 3 PSEG Nuclear, LLC Correction to Previously-Reported Transfer and Processed Release of Water from Peach Bottom Decommissioned Unit 1 (SAFSTOR)

In 2013, the NRC conducted an inspection of the PBAPS Unit 1 which is the defueled and decommissioned facility in SAFSTOR status. This inspection included a record review of the water accounting that collects within Unit 1 because of condensation or small amounts of rain-water intrusion. When the Licensee encounters water within Unit 1 during its routine inspections, water is sampled, analyzed and contained in drums for transfer to the Unit 2 and 3 Liquid Radioactive Waste System for release.

However, the Inspector noted that the way Peach Bottom stated the accounting was not fully describing the transfer and release of the water because not all water transferred in a calendar year is released within that same calendar year. Peach Bottom did not have sufficient clarifying documentation to account explicitly in the report (both the Unit 1 Annual Decommissioning Report and the Annual Radioactive Effluent Release Report) to provide the level of detail to the satisfaction of the regulator. Peach Bottom Chemistry Department agreed with the Inspector and entered the issue into the Corrective Action Program for disposition.

The corrected data are provided in Table 14.

Table 14. Corrected Unit 1 Waste Transfer Data Total Tritium Transferred Remaining Activity in Calendar from Last Year Released Remaining Released (all Year (gallons) (gallons) (gallons) (gallons) water) (uCi) 2011 3.60E+03 O.OOE+00 2.79E+03 8.09E+02 4.07E+03 2012 2.13E+02 8.09E+02 9.42E+02 8.OOE+01 3.16E+03 2013 1.66E+02 8.O0E+01 1.73E+02 7.30E+01 2.10E+03 95

Retrieved from "https://kanterella.com/w/index.php?title=ML14120A213&oldid=2452890"