ML12101A230

FEMA Grand Gulf Nuclear Station, Final Exercise Report, FEMA Region IV Exercise Date - November 1, 2011

ML12101A230
Person / Time
Site:	Grand Gulf
Issue date:	01/30/2012
From:	Tonya Russell US Dept of Homeland Security, Federal Emergency Management Agency
To:	Collins E Region 4 Administrator
Cecere, Bethany NSIR/DPR 415-6754
References
Download: ML12101A230 (132)

Text

Grand Gulf Nuclear Station After Action Report/

Improvement Plan Exercise Date - November 01, 2011 Radiological Emergency Preparedness (REP) Program Published January 27, 2012

Unclassified Radiological Emergency Preparedness Program (REP)

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Unclassified Radiological Emergency Preparedness Program (REP)

After Action Report/Improvement Plan Grand Gulf Nuclear Station Grand Gulf Nuclear Station After Action Report/Improvement Plan Published January 27, 2012 Contents Executive Summary 4 Section 1: Exercise Overview 5 1.1 Exercise Details 5 1.2 Exercise Planning Team Leadership 5 1.3 Participating Organizations 6 Section 2: Exercise Design Summary 8 2.1 Exercise Purpose and Design 8 2.2 Exercise Objectives, Capabilities and Activities 8 2.3 Scenario Summary 8 Section 3: Analysis of Capabilities 9 3.1 Exercise Evaluation and Results 9 3.2 Summary Results of Exercise Evaluation 9 3.3 Criteria Evaluation Summaries 12 3.3.1 Louisiana Jurisdictions 12 3.3.1.1 Louisiana Emergency Operations Center 12 3.3.1.2 Louisiana Department of Environmental Quality 12 Headquarters 3.3.1.3 Louisiana Department of Environmental Quality 12 EOF 3.3.1.4 Grand Gulf Joint Information Center 13 3.3.2 Risk Jurisdictions 13 3.3.2.1 Tensas Parish Emergency Operations Center and 13 Traffic/Access Control Point 3.3.3 Private Organizations 17 3.3.3.1 Tensas Parish Academy School 17 3.3.3.2 EAS Radio Station KNOE 19 Section 4: Conclusion 20 Appendix A: Improvement Plan 21 1

Unclassified Radiological Emergency Preparedness Program (REP)

After Action Report/Improvement Plan Grand Gulf Nuclear Station Appendix B: Exercise Timeline 22 Appendix C: Exercise Evaluators and Team Leaders 23 Appendix D: Acronyms and Abbreviations 24 Appendix E: Exercise Plan 25 2

Unclassified Radiological Emergency Preparedness Program (REP)

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Unclassified Radiological Emergency Preparedness Program (REP)

After Action Report/Improvement Plan Grand Gulf Nuclear Station EXECUTIVE

SUMMARY

On November 1, 2011 a biennial Radiological Emergency Preparedness (REP) exercise was conducted in the plume exposure pathway emergency planning zone (EPZ) around the Grand Gulf Nuclear Station (GGNS) located in Port Gibson, Claiborne County, Mississippi. Personnel from the U.S. Department of Homeland Security/Federal Emergency Management Agency (DHS/FEMA), Region VI, evaluated the exercise. The purpose was to assess the level of preparedness of state and local responders to react to a simulated radiological emergency at GGNS. This exercise was held in accordance with DHS/FEMA policies and guidance concerning the implementation of state and local radiological emergency preparedness plans and procedures. The previous exercise at this site was conducted on September 9, 2009. The qualifying emergency preparedness exercise was conducted November 1981. There have been 18 evaluated exercises, including the exercise on November 1, 2011, plus several drills conducted since that time.

The DHS/FEMA Region VI Office wishes to acknowledge the efforts of the many individuals in the State of Louisiana, Tensas Parish, and surrounding jurisdictions who participated in this exercise. Protecting the public health and safety is the full-time job of some of the exercise participants and an additional assigned responsibility for others.

Still others have willingly sought this responsibility by volunteering to provide vital emergency services to their communities. Cooperation and teamwork of all the participants was evident during this exercise.

This report contains the final written evaluation of the biennial exercise. The state and local organizations, except where noted in this report, demonstrated knowledge of their emergency response plans and procedures and adequately implemented them. There were no Deficiencies, two Areas Requiring Corrective Actions (ARCA), and three Plan Issues identified during this exercise. One ARCA and all Plan Issues have been corrected.

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Unclassified Radiological Emergency Preparedness Program (REP)

After Action Report/Improvement Plan Grand Gulf Nuclear Station SECTION 1: EXERCISE OVERVIEW 1.1 Exercise Details Exercise Name Grand Gulf Nuclear Station Type of Exercise Plume Exercise Date November 01, 2011 Program Department of Homeland Security/FEMA Radiological Emergency Preparedness Program Scenario Type Radiological Emergency 1.2 Exercise Planning Team Leadership Lisa Hammond RAC Chair FEMA Region VI Technological Hazards Branch Chief 800 N. Loop 288 Denton, Texas, 76209 940-898-5199 lisa.hammond@fema.dhs.gov Nan Calhoun Federal Planning Team Lead FEMA Region VI Technological Hazards Program Specialist 800 North Loop 288 5

Unclassified Radiological Emergency Preparedness Program (REP)

After Action Report/Improvement Plan Grand Gulf Nuclear Station Denton, Texas, 76209 940-898-5398 nan.calhoun@fema.dhs.gov Cheryl Chubb State Planning Team Lead Louisiana Department of Environmental Quality Environmental Scientist 602 N. Fifth Street Baton Rouge, Louisiana, 70802 225-219-3626 cheryl.chubb@la.gov 1.3 Participating Organizations Agencies and organizations of the following jurisdictions participated in the Grand Gulf Nuclear Station exercise:

State Jurisdictions Louisiana Department of Environmental Quality Louisiana Governor's Office of Homeland Security and Emergency Preparedness Louisiana Department of Agriculture and Forestry Louisiana Department of Children and Family Services Louisiana Department of Corrections Louisiana Department of Health and Hospitals Louisiana Department of Justice Louisiana Department of Transportation and Development Louisiana Department of Wildlife and FIsheries Louisiana National Guard Louisiana State Fire Marshall Louisiana State Police Louisiana State University Agricultural Center - Extension Services Risk Jurisdictions Tensas Parish Office of Homeland Security and Emergency Preparedness Tensas Parish 911 6

Unclassified Radiological Emergency Preparedness Program (REP)

After Action Report/Improvement Plan Grand Gulf Nuclear Station Tensas Parish Council on Aging Tensas Parish Fire District #1 Tensas Parish Police Jury Tensas Parish School Board Tensas Parish Sheriff's Office Private Organizations STAR 101.9 KNOE EAS Radio Station American Red Cross Entergy Corporation 7

Unclassified Radiological Emergency Preparedness Program (REP)

After Action Report/Improvement Plan Grand Gulf Nuclear Station SECTION 2: EXERCISE DESIGN

SUMMARY

2.1 Exercise Purpose and Design The DHS/FEMA Region VI Radiological Emergency Preparedness staff evaluated an exercise on November 1, 2011 to assess the capabilities of state and local emergency preparedness organizations in implementing their Radiological Emergency Response Plans and procedures to protect the public health and safety during a radiological emergency involving Grand Gulf Nuclear Station (GGNS). The purpose of this report is to present the results and findings on the performance of the offsite response organizations during a simulated radiological emergency.

2.2 Exercise Objectives, Capabilities and Activities Exercise objectives and identified Capabilities/REP Criteria selected to be exercised are discussed in the Exercise Plan (EXPLAN), Appendix E.

2.3 Scenario Summary The exercise scenario was developed to evaluate the response of drill participants to an incident requiring evacuation of the public from the Louisiana portion of the 10-mile Emergency Planning Zone surrounding the Grand Gulf Nuclear Station. The exercise scenario provided for the evaluation of Tensas Parish, Louisiana Department of Environmental Quality and the Governor's Office of Homeland Security and Emergency Preparedness to test the ability of participants to formulate and implement protective action decisions.

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Unclassified Radiological Emergency Preparedness Program (REP)

After Action Report/Improvement Plan Grand Gulf Nuclear Station SECTION 3: ANALYSIS OF CAPABILITIES 3.1 Exercise Evaluation and Results Contained in this section are the results and findings of the evaluation of all jurisdictions and functional entities that participated in the November 1, 2011 exercise evaluation to test the offsite emergency response capabilities of local governments in the 10-mile Emergency Planning Zone surrounding the Grand Gulf Nuclear Station.

Each jurisdiction and functional entity was evaluated on the basis of its demonstration of criteria delineated in the exercise evaluation areas as outlined in the April 25, 2002, Federal Register, Radiological Emergency Preparedness: Evaluation Methodology. Detailed information on the exercise evaluation area criteria and the extent of play agreement used in this drill are found in Appendix E of this report.

3.2 Summary Results of Exercise Evaluation The matrix presented in Table 3.1 on the following page, presents the status of all exercise evaluation area criteria that were scheduled for demonstration during this exercise by all participating jurisdictions and functional entities. Exercise criteria are listed by number and the demonstration status is indicated by the use of the following letters:

M - Met (No Deficiency or ARCAs assessed and no unresolved ARCAs from prior exercise)

D - Deficiency assessed A - ARCAs assessed or unresolved ARCAs from previous exercises P - Plan Issue N - Not Demonstrated 9

Unclassified Radiological Emergency Preparedness Program (REP)

After Action Report/Improvement Plan Grand Gulf Nuclear Station Table 3.1 - Summary of Exercise Evaluation Tensas Parish EOC & T/ACP DATE: 2011-11-01 SITE: Grand Gulf Nuclear Station, MS GOHSEP EOC LDEQ EOF TP Academy EAS-KNOE M: Met, A: ARCA, D: Deficiency, P: Plan Issue, N: Not Demonstrated LDEQ HQ GGNS JIC Emergency Operations Management Mobilization 1a1 M M M M M Facilities 1b1 Direction and Control 1c1 M M M M Communications Equipment 1d1 M M M M M Equip & Supplies to support operations 1e1 M M M M M Protective Action Decision Making Emergency Worker Exposure Control 2a1 M M M Radiological Assessment and PARs 2b1 M M Decisions for the Plume Phase -PADs 2b2 M M PADs for protection of special populations 2c1 M Rad Assessment and Decision making for the Ingestion Exposure Pathway 2d1 Rad Assessment and Decision making concerning Relocation, Reentry, and Return 2e1 Protective Action Implementation Implementation of emergency worker exposure control 3a1 M M M Implementation of KI decision 3b1 M M Implementation of protective actions for special populations - EOCs 3c1 M Implementation of protective actions for Schools 3c2 M Implementation of traffic and access control 3d1 M Impediments to evacuation are identified and resolved 3d2 M Implementation of ingestion pathway decisions - availability/use of info 3e1 Materials for Ingestion Pathway PADs are available 3e2 Implementation of relocation, re-entry, and return decisions. 3f1 Field Measurement and Analysis Adequate Equipment for Plume Phase Field Measurements 4a1 Field Teams obtain sufficient information 4a2 Field Teams Manage Sample Collection Appropriately 4a3 Post plume phase field measurements and sampling 4b1 Laboratory operations 4c1 Emergency Notification and Public Info Activation of the prompt alert and notification system 5a1 A M Activation of the prompt alert and notification system - Fast Breaker 5a2 Activation of the prompt alert and notification system - Exception areas 5a3 Emergency information and instructions for the public and the media 5b1 M M Mon / decon of evacuees and emergency workers, and registration of evacuees 6a1 Mon / decon of emergency worker equipment 6b1 Temporary care of evacuees 6c1 Transportation and treatment of contaminated injured individuals 6d1 10

Unclassified Radiological Emergency Preparedness Program (REP)

After Action Report/Improvement Plan Grand Gulf Nuclear Station 11

Unclassified Radiological Emergency Preparedness Program (REP)

After Action Report/Improvement Plan Grand Gulf Nuclear Station 3.3 Criteria Evaluation Summaries 3.3.1 Louisiana Jurisdictions 3.3.1.1 Louisiana Emergency Operations Center In summary, the status of DHS/FEMA criteria for this location is as follows:

a. MET: 1.a.1, 1.c.1, 1.d.1, 1.e.1, 2.a.1, 2.b.1, 2.b.2.

b. AREAS REQUIRING CORRECTIVE ACTION: None

c. DEFICIENCY: None

d. PLAN ISSUES: None

e. NOT DEMONSTRATED: None

f. PRIOR ISSUES - RESOLVED: None

g. PRIOR ISSUES - UNRESOLVED: None 3.3.1.2 Louisiana Department of Environmental Quality Headquarters In summary, the status of DHS/FEMA criteria for this location is as follows:

a. MET: 1.a.1, 1.c.1, 1.d.1, 1.e.1.

b. AREAS REQUIRING CORRECTIVE ACTION: None

c. DEFICIENCY: None

d. PLAN ISSUES: None

e. NOT DEMONSTRATED: None

f. PRIOR ISSUES - RESOLVED: None

g. PRIOR ISSUES - UNRESOLVED: None 3.3.1.3 Louisiana Department of Environmental Quality EOF In summary, the status of DHS/FEMA criteria for this location is as follows:

a. MET: 1.a.1, 1.c.1, 1.d.1, 1.e.1, 2.a.1, 2.b.1, 3.a.1, 3.b.1.

b. AREAS REQUIRING CORRECTIVE ACTION: None

c. DEFICIENCY: None

d. PLAN ISSUES: None

e. NOT DEMONSTRATED: None

f. PRIOR ISSUES - RESOLVED: None 12

Unclassified Radiological Emergency Preparedness Program (REP)

After Action Report/Improvement Plan Grand Gulf Nuclear Station

g. PRIOR ISSUES - UNRESOLVED: None 3.3.1.4 Grand Gulf Joint Information Center In summary, the status of DHS/FEMA criteria for this location is as follows:

a. MET: 1.a.1, 1.d.1, 1.e.1, 5.b.1.

b. AREAS REQUIRING CORRECTIVE ACTION: None

c. DEFICIENCY: None

d. PLAN ISSUES: None

e. NOT DEMONSTRATED: None

f. PRIOR ISSUES - RESOLVED: None

g. PRIOR ISSUES - UNRESOLVED: None 3.3.2 Risk Jurisdictions 3.3.2.1 Tensas Parish Emergency Operations Center and Traffic/Access Control Point In summary, the status of DHS/FEMA criteria for this location is as follows:

a. MET: 1.a.1, 1.c.1, 1.d.1, 1.e.1, 2.a.1, 2.b.2, 2.c.1, 3.a.1, 3.b.1, 3.c.1, 3.d.1, 3.d.2, 5.b.1.

b. AREAS REQUIRING CORRECTIVE ACTION: 5.a.1.

ISSUE NO.: 28-11-5a1-A-04 CRITERION: Activities associated with primary alerting and notification of the public are completed in a timely manner following the initial decision by authorized offsite officials to notify the public of an emergency situation. (10 CFR Part 50, Appendix E & NUREG-0654, E.1.,4.,5.,6.,7.)

CONDITION: Sirens and EAS broadcast for the initial Protective Action Decision (PAD) were done simultaneously.

POSSIBLE CAUSE: Program guidance was not follwed with regard to sounding the siren and following it with the release of an Emergency Alert System message.

REFERENCE:

Interim REP Program Manual, Section I-21 Interim REP Program Manual, Section I-34 13

Unclassified Radiological Emergency Preparedness Program (REP)

After Action Report/Improvement Plan Grand Gulf Nuclear Station Memorandum from Kay Goss to Regional Directors, dated 4/2/98 on Interim-use Guidance for providing information and instructions to the Public for Radiological Emergencies using the New Emergency Alert System (EAS)

EFFECT: The public could have missed the initial message and protective actions may have been delayed.

RECOMMENDATION: Assure that Emergency Alert System (EAS) message broadcast follow siren activations within five minutes as required by the REP Program Manual.

c. DEFICIENCY: None

d. PLAN ISSUES: 1.e.1, 3.b.1, 5.a.1.

ISSUE NO.: 28-11-1e1-P-01 CRITERION: Equipment, maps, displays, dosimetry, potassium iodide (KI), and other supplies are sufficient to support emergency operations.

CONDITION: Radiation survey meters were not dispatched, nor were operational checks conducted on the meters. The language in the procedure leads to possible confusion about the intended use of survey meters in the Emergency Operation Center (EOC). The procedure does not explain the intended use of the survey meters, nor does it provide a link to the use of the Emergency Worker (EW) Monitoring and Decontamination station for assuring that EWs entering the Emergency Operation Center are free of contamination.

POSSIBLE CAUSE: Procedures for assuring that anyone entering the Emergency Operation Center (EOC) is free of contamination are unclear. The procedure references the use of survey meters, but does not describe their intended use. In addition, the procedure does not clearly state that anyone entering the EOC will be processed through the Emergency Worker Monitoring and Decontamination, facility adjacent to the EOC, to assure they are free of contamination prior to entering the EOC.

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Unclassified Radiological Emergency Preparedness Program (REP)

After Action Report/Improvement Plan Grand Gulf Nuclear Station

REFERENCE:

NUREG-0654 H.7, 10 EFFECT: The lack of specific information on the use of survey meters and the Emergency Worker Monitoring and Decontamination Facility could lead to potential confusion for the staff of the Emergency Operation Center.

CORRECTIVE ACTION DEMONSTRATED: The Radiological Defense Officer procedures were updated to clarify the intended use of the survey meters referenced for habitability monitoring. In addition, language was provided in the procedures that addresses the use of the Emergency Worker Monitoring and Decontamination Facility for assuring that anyone entering the Emergency Operation Center is free of radiological contamination.

ISSUE NO.: 28-11-3b1-P-02 CRITERION: KI and appropriate instructions are available should a decision to recommend use of KI be made. Appropriate record keeping of the admin of KI for emergency workers and institutionalized individuals (not general public) is maintained. (NUREG-0654, E.7., J.10.e.f.)

CONDITION: The Radiological Defense Officer demonstrated through discussion the method he would use to issue Potassium Iodide (KI) to Emergency Workers, but no method of recording ingestion of Potassium for tracking the date and dosage used during a 24 period was provided to EW at the time that the authorization to ingest KI was issued.

POSSIBLE CAUSE: There is no indicator in the Tensas Parish Radiological Emergency Implementation Procedures check list to alert the Radiological Defense Officer to collect such information at the time the recommendation for Potassium Iodide is received.

REFERENCE:

NUREG -0654, E.7, Interim REP Program Manula evaluation criterion 3.b.1 15

Unclassified Radiological Emergency Preparedness Program (REP)

After Action Report/Improvement Plan Grand Gulf Nuclear Station EFFECT: The Radiological Defense Officer would only have record of those EWs that had the opportunity to contact the Emergency Operation Center and report their ingestion of Potassium Iodide, along with time and date. For dose reconstruction purposes, it is important that the EW have the capability record date and time of KI ingestion.

CORRECTIVE ACTION DEMONSTRATED: A form was added to the Tensas Parish Radiological Emergency Implementation Procedures checklist that can be used to capture Potassium Iodide ingestion information. Contents of Emergency Worker (EW) dosimetry kits have been included in procedures that include EW Exposure Control Cards that with a space to document their ingestion of KI. A EW briefing was also added to the procedure/checklist.

ISSUE NO.: 28-11-5a1-P-03 CRITERION: Activities associated with primary alerting and notification of the public are completed in a timely manner following the initial decision by authorized offsite officials to notify the public of an emergency situation. (10 CFR Part 50, Appendix E & NUREG-0654, E.1.,4.,5.,6.,7.)

CONDITION: The initial public notification message, sent at 1140, did not properly identify the authority issuing the message and was also missing other required elements such as emergency discription and Emergency Classification Level (ECL).

In addition, the Tensas Parish Emergency Alert System message instructed the people in specific Protective Action Sections to evacuate, while at the same time directing farmers to move livestock inside with stored food and water. It was also noted that the plans and procedures did not contain a repeat frequency for the Emergency Alert System message.

POSSIBLE CAUSE: Pre-scripted messages do not meet program guidance requirements.

REFERENCE:

Interim REP Program Manual, Section I-21 16

Unclassified Radiological Emergency Preparedness Program (REP)

After Action Report/Improvement Plan Grand Gulf Nuclear Station Interim REP Program Manual, Section I-34 Memorandum from Kay Goss to Regional Directors, dated 4/2/98 on Interim-use Guidance for providing information and instructions to the Public for Radiological Emergencies using the New Emergency Alert System (EAS)

FDA, Accident Contamination of Human Food and Animal Feeds:

Recommendations for State and Local Agencies, August 13, 1998, section Protective Actions, (a) Protective Actions Prior to Confirmation of Contamination (pages 24-26).

EFFECT: The public would not know what authority was announcing emergency instructions or the specifics of the emergency classification. In addition, individuals instructed to evacuate or shelter could be told the place animals on stored feed at the same time they should be sheltering and evacuating. Their protective actions could be impeded resulting in a potential exposure. Without a plan to repeat the EAS message at a specified frequency, there is no assurance that the public would hear the message. This could result in unnecessary exposure and could impact public health and safety.

CORRECTIVE ACTION DEMONSTRATED: Pre-scripted message forms were updated to include all information required by the REP Program Manual.

Additionally, plans and procedures have been revised so that precautionary actions of placing milk animals on stored feed are not made for areas in which protective actions for the public are also being made.

e. NOT DEMONSTRATED: None

f. PRIOR ISSUES - RESOLVED: None

g. PRIOR ISSUES - UNRESOLVED: None 3.3.3 Private Organizations 3.3.3.1 Tensas Parish Academy School In summary, the status of DHS/FEMA criteria for this location is as follows:

a. MET: 3.a.1, 3.c.2.

b. AREAS REQUIRING CORRECTIVE ACTION: 3.a.1.

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Unclassified Radiological Emergency Preparedness Program (REP)

After Action Report/Improvement Plan Grand Gulf Nuclear Station ISSUE NO.: 28-11-3a1-A-05 CRITERION: OROs issue appropriate dosimetry and procedures, and manage radiological exposure to emergency workers IAW plans and procedures. Emergency workers periodically and at the end of each mission read and record dosimeter reading. (NUREG-0654, K.3)

CONDITION: The Tensas Parish Academy School bus driver was not adequatly trained and was not familiar with procedures upon initial interview.

POSSIBLE CAUSE: The bus driver may not have been trained or may not have familiarized himself with procedures prior to interview.

REFERENCE:

NUREG-0654 K.3 EFFECT: The bus driver may not have been able to adequately protect himself as an emergency worker.

CORRECTIVE ACTION DEMONSTRATED: A subsequent briefing by the Radiological Defence Officer provided immediate correction on the spot to this issue.

This briefing, to a Tensas Parish Academy School bus driver, was thorough and complete. After the briefing, an interview with the bus driver indicated that he was knowledgeable in basic radiological exposure control techniques including reading dosimeters at 30 minute intervals, exposure limits, and understood that he would contact the RADEF if he noted any readings. This resulted in an immediate correction of the observed issue.

c. DEFICIENCY: None

d. PLAN ISSUES: None

e. NOT DEMONSTRATED: None

f. PRIOR ISSUES - RESOLVED: None

g. PRIOR ISSUES - UNRESOLVED: None 18

Unclassified Radiological Emergency Preparedness Program (REP)

After Action Report/Improvement Plan Grand Gulf Nuclear Station 3.3.3.2 EAS Radio Station KNOE In summary, the status of DHS/FEMA criteria for this location is as follows:

a. MET: 5.a.1.

b. AREAS REQUIRING CORRECTIVE ACTION: None

c. DEFICIENCY: None

d. PLAN ISSUES: None

e. NOT DEMONSTRATED: None

f. PRIOR ISSUES - RESOLVED: None

g. PRIOR ISSUES - UNRESOLVED: None 19

Unclassified Radiological Emergency Preparedness Program (REP)

After Action Report/Improvement Plan Grand Gulf Nuclear Station SECTION 4: CONCLUSION Based on the results of the exercise, the offsite radiological emergency response plans and preparedness for the State of Louisiana and the affected local jurisdiction are deemed adequate to provide reasonable assurance that appropriate measures can be taken to protect the health and safety of the public in the event of a radiological emergency. Therefore, 44 CFR Part 350 approval of the offsite radiological emergency response plans and preparedness for the State of Louisiana site-specific to Grand Gulf Nuclear Station will remain in effect.

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Unclassified Radiological Emergency Preparedness Program (REP)

After Action Report/Improvement Plan Grand Gulf Nuclear Station APPENDIX A: IMPROVEMENT PLAN Issue Number: 28-11-5a1-A-04 Criterion: 5a1 ISSUE: Sirens and EAS broadcast for the initial Protective Action Decision (PAD) were done simultaneously.

RECOMMENDATION: Assure that Emergency Alert System (EAS) message broadcast follow siren activations within five minutes as required by the REP Program Manual.

CORRECTIVE ACTION DESCRIPTION: Changes have been made to both the Tensas Parish Emergency Operations Procedure for Emergency Preparedness Coordinator (EPC), Rev 1, and the Tensas Parish Emergency Operations Procedure for Alert, Rev 1.

The Alert procedure was submitted to FEMA.Section IV, Alerting General Public, was rewritten to correct the order of the siren sounding and emergency alert system (EAS) message broadcast. The procedure now indicates the sirens are sounded first, then the EAS message is broadcast within five minutes. This is also reflected in Attachment A, EAS Message Flow Chart.

As both the siren sounding and EAS message dissemination are the responsibilities of the Emergency Planning Coordinator (EPC), that positions procedure was also updated to reflect the newly ordered actions as found in the Alert procedure. The EPC procedure includes a higher level of detail in the Site Area Emergency (SAE) and General Emergency (GE) Emergency Classification Levels (ECL) and in the Recovery section. This detail is also reflected in the EPC Checklist, Attachment A and Attachment G, EAS Message Flow Chart.

CAPABILITY: PRIMARY RESPONSIBLE AGENCY:

Emergency Public Information and Warning Tensas Parish Office of Homeland Security and Emergency Preparedness CAPABILITY ELEMENT: START DATE:

Personnel 2011-12-01 AGENCY POC: ESTIMATED COMPLETION DATE:

Rick Foster 318-766-3992 2013-09-21 21

Unclassified Radiological Emergency Preparedness Program (REP)

After Action Report/Improvement Plan Grand Gulf Nuclear Station APPENDIX B: EXERCISE TIMELINE Table 1 - Exercise Timeline DATE: 2011-11-01, SITE: Grand Gulf Nuclear Station, MS Tensas Parish EOC & T/ACP Time Utility Declared Emergency Classification Level or GOHSEP EOC Event LDEQ HQ LDEQ EOF GGNS JIC Unusual Event 0816-inject Alert 0825 0832 0832 0844 0855 0825 Site Area Emergency 0946 0959 1018 0959 1017 0959 General Emergency 1040 1051 1102 1040 1105 1049 Simulated Rad. Release Started 0947 0959 1018 0959 Simulated Rad. Release Terminated Facility Declared Operational 0935 0803 1040 0915 0835 Declaration of State of Emergency 1034 0946 Exercise Terminated 1335 1335 1333 1336 1340 Early Precautionary Action - Evacuate Schools 1015 1st Protective Action Decision: Evacuate PAS 8, 1140

12. Shelter PAS 9, 10, 11 1st Siren Activation 1140 1st EAS or EBS Message 1140 2nd Siren Activation for Early Precautionary 1219 Action 2nd EAS or EBS Message for Early 1220 Precautionary Action KI Administration Decision: for EW entering 1132 1132 1221 1100 Mississippi 22

Unclassified Radiological Emergency Preparedness Program (REP)

After Action Report/Improvement Plan Grand Gulf Nuclear Station APPENDIX C: EXERCISE EVALUATORS AND TEAM LEADERS DATE: 2011-11-01, SITE: Grand Gulf Nuclear Station, MS LOCATION EVALUATOR AGENCY Louisiana Emergency Operations Center *Brad DeKorte FEMA RVI Timothy Pflieger FEMA RVI Louisiana Department of Environmental Quality Headquarters *Timothy Pflieger FEMA RVI Louisiana Department of Environmental Quality EOF *Scott Flowerday FEMA RVI Grand Gulf Joint Information Center *Bill Bischof FEMA RVI Elsa Lopez FEMA RVI Sam Williams FEMA RVI Tensas Parish Emergency Operations Center and Traffic/Access *Linda Gee FEMA RVI Control Point Mike Goldsworthy FEMA RVI David Jeremy FEMA HQ Tensas Parish Academy School *Linda Gee FEMA RVI EAS Radio Station KNOE *Timothy Pflieger FEMA RVI

• Team Leader 23

Unclassified Radiological Emergency Preparedness Program (REP)

After Action Report/Improvement Plan Grand Gulf Nuclear Station APPENDIX D: ACRONYMS AND ABBREVIATIONS Acronym Meaning ARCA Areas Requiring Corrective Actions CCCD Claiborne County Civil Defense CS Company Spokesperson EAS Emergency Alert System ECL Emergency Classification Level EMS Emergency Medical Services EOC Emergency Operations Center EOF Emergency Operations Facility EPA Environmental Protection Agency EPC Emergency Planning Coordinator EPZ Emergency Planning Zone EW Emergency Worker GE General Emergency GGNS Grand Gulf Nuclear Station HOO Headquarters Operations Officer IRC Inquiry Response Coordinator IRT Inquiry Response Team JIC Joint Information Center MEMA Mississippi Emergency Management Agency MHP Mississippi Highway Patrol PAA Protective Action Areas PAD Protective Action Decision PAS Protective Action Sections PIC Public Information Calendar PIO Public Information Officer PJP Police Jury President REP Radiological Emergency Preparedness SAE Site Area Emergency SEL Senior EOF Liaison SEOC State Emergency Operations Center TPFD Tensas Parish Fire Department UCG Unified Command Group 24

Unclassified Radiological Emergency Preparedness Program (REP)

After Action Report/Improvement Plan Grand Gulf Nuclear Station APPENDIX E: EXERCISE PLAN 25

Unclassified Radiological Emergency Preparedness Program (REP)

After Action Report/Improvement Plan Grand Gulf Nuclear Station STATE OF LOUISIANA OFFSITE SCENARIO FOR GRAND GULF NUCLEAR STATION November 1, 2011 Participating Organizations State of Louisiana Tensas Parish 26

Unclassified Radiological Emergency Preparedness Program (REP)

After Action Report/Improvement Plan Grand Gulf Nuclear Station STATE OF LOUISIANA GRAND GULF NUCLEAR STATION November 1,2011 REVISION LOG Revision Date Record of Activity 0 8/31/11 Initial Release 27

Unclassified Radiological Emergency Preparedness Program (REP)

After Action Report/Improvement Plan Grand Gulf Nuclear Station STATE OF LOUISIANA Grand Gulf Nuclear Station 11/1/2011 TABLE OF CONTENTS Page Revision Log 1 Table of Contents 2 Acronyms 3 Schedule of Events 6 Narrative Summary 7 Attachments A Offsite Exercise Objectives 8 B Exercise Timeline 26 C Meteorological Data 24 D Utility Radiological Data 28 E LDEQ Dose Assessment 57 F LDEQ Field Monitoring Team Data 79 I Offsite Participants 90 28

Unclassified Radiological Emergency Preparedness Program (REP)

After Action Report/Improvement Plan Grand Gulf Nuclear Station STATE OF LOUISIANA Grand Gulf Nuclear Station 11/1/2011 ACRONYMS AAC - Accident Assessment Coordinator ADS - Administrative Support BKG - Background CEDE - Committed Effective Dose Equivalent DAC - Dose Assessment Coordinator DOE - US Department of Energy DWD - Downwind Distance EOC - Emergency Operations Center EOF - Emergency Operations Facility EPA - US Environmental Protection Agency EPZ - Emergency Planning Zone ERDS - Emergency Response Data System ERF - Emergency Response Facility EW - Emergency Worker FEMA - Federal Emergency Management Agency FMT - Field Monitoring Team GE - General Emergency GGNS - Grand Gulf Nuclear Station GLCMR - Ground Level Closed Meter Reading GLOMR - Ground Level Open Meter Reading Governor's Office of Homeland Security & Emergency GOHSEP - Preparedness HOO - Headquarters Operations Officer HPCS - High Pressure Core Spray 29

Unclassified Radiological Emergency Preparedness Program (REP)

After Action Report/Improvement Plan Grand Gulf Nuclear Station STATE OF LOUISIANA Grand Gulf Nuclear Station 11/1/2011 HQ - Headquarters IRT - Initial Response Team ISCTOT - Iodine Sample Background Total Count JIC - Joint Information Center KI - Potassium Iodide LCO - Limiting Condition for Operations LDEQ - Louisiana Department of Environmental Quality LPCS - Low Pressure Core Spray NOUE - Notice of Unusual Event NRC - US Nuclear Regulatory Commission OSC - Operations Support Center PAG - Protective Action Guideline PAR - Protective Action Recommendation PIO - Public Information Officer REP&R - Radiological Emergency Planning & Response SAE - Site Area Emergency SEC - LDEQ Secretary's Designee SEL - Senior EOF Liaison SEOC - State EOC SPMU - Suppression Pool Make Up T/ACP - Traffic/Access Control Point TEDE - Total Effective Dose Equivalent TRP - State EOC Technical Representative TSC - Technical Support Center WLCMR - Waist Level Closed Meter Reading 30

Unclassified Radiological Emergency Preparedness Program (REP)

After Action Report/Improvement Plan Grand Gulf Nuclear Station STATE OF LOUISIANA Grand Gulf Nuclear Station 11/1/2011 WLOMR - Waist Level Open Meter Reading WO - Worker Order 31

Unclassified Radiological Emergency Preparedness Program (REP)

After Action Report/Improvement Plan Grand Gulf Nuclear Station STATE OF LOUISIANA Grand Gulf Nuclear Station 11/1/2011 SCHEDULE OF EVENTS Monday, October 31, 2011 11:00 - KNOE Radio Station Site Assisted Visit Monroe, LA 15:00 - FEMA, State, Utility Briefing Hampton Inn, Vicksburg, MS TBA - Out of State Controllers To be announced Tuesday, November 01, 2011 08:00 - GGNS Evaluated Exercise LDEQ, Baton Rouge, LA State EOC, Baton Rouge, LA Tensas Parish EOC, St. Joseph, LA JIC, Jackson, MS Grand Gulf Nuclear Station, Port Gibson, MS Thursday, November 03, 2011 09:30 - Federal/State/Local Exercise Summary Meeting Tensas Parish EOC, St. Joseph, LA 10:30 - Public Meeting Tensas Parish Courthouse, St. Joseph, LA 32

Unclassified Radiological Emergency Preparedness Program (REP)

After Action Report/Improvement Plan Grand Gulf Nuclear Station STATE OF LOUISIANA Grand Gulf Nuclear Station 11/1/2011 NARRATIVE

SUMMARY

The plant is operating at 96% power 16 months into its current operating cycle.

Low Pressure Core Spray (LPCS) pump red tagged out of service due to high vibration during last surveillance run. Maintenance found damaged motor bearings removed motor. We are currently in day three of the LPCS outage.

Division I Suppression Pool Make Up (SPMU) valve E30F001A red tagged out of service for motor inspection. Stroke times during last surveillance exceeded normal times. Electrical maintenance is awaiting work order (WO) to work.

As a result of a failed surveillance test, the 'A' diesel driven fire pump is being overhauled. It is expected to be returned to service on September 11.

E61F057 (Purge Exhaust containment outboard isolation valve) is out of service due to failure of solenoid valve E61F508 (Purge exhaust containment outboard isolation solenoid valve).

LCO written.

Division II Diesel Generator monthly surveillance is due, Attachment I to be performed this evening.

Weather is partly cloudy, with winds from the west.

33

Unclassified Radiological Emergency Preparedness Program (REP)

After Action Report/Improvement Plan Grand Gulf Nuclear Station STATE OF LOUISIANA Grand Gulf Nuclear Station 11/1/2011 ATTACHMENT A Grand Gulf Nuclear Station Extent of Play 2011 Revision 1 8/29/11 34

Unclassified Radiological Emergency Preparedness Program (REP)

After Action Report/Improvement Plan Grand Gulf Nuclear Station STATE OF LOUISIANA Grand Gulf Nuclear Station 11/1/2011 REVISION LOG

1. Date Revision 0 6/28/11 Initial release Removed Tensas Parish Emergency Worker Monitoring &

Decon; removed Concordia Parish Reception Center; 1 8/29/11 updated PIO pre-stage in 1.a.1; removed 1.b.1, 4.a.1, 4.a.2, 4.a.3, 6.a.1, 6.b.1, 6.c.1;added KNOE time; removed State EOC from 5.a.1, 5.b.1; change bus driver verbiage in 3.c.2 35

Unclassified Radiological Emergency Preparedness Program (REP)

After Action Report/Improvement Plan Grand Gulf Nuclear Station STATE OF LOUISIANA Grand Gulf Nuclear Station 11/1/2011 I. EVALUATION AREA 1: EMERGENCY OPERATIONS MANAGEMENT A. Sub-element 1.a - Mobilization Criterion 1.a.1: OROs use effective procedures to alert, notify, and mobilize emergency personnel and activate facilities in a timely manner. (NUREG-0654, A.4; D.3, 4; E.1, 2; H.4)

1. Locations State EOC, LDEQ Headquarters (LDEQ HQ), LDEQ EOF, Joint Information Center (JIC), Tensas Parish EOC

2. Extent of Play

a. The LDEQ EOF team will pre-stage at the Comfort Suites in Vidalia, LA. The LDEQ PIO will pre-stage at the Holiday Inn Express in Pearl, Mississippi.

b. Due to the timeline of the exercise, controller inject will begin mobilization of the LDEQ EOF prior to their receipt of the first notification. Field monitoring teams will also begin operations checks of equipment.

3. ARCAs - None B. Sub-element 1.c - Direction and Control Criterion 1.c.1: Key personnel with leadership roles for the ORO provide direction and control to that part of the overall response effort for which they are responsible. (NUREG-0654, A.1.d; A.2.a, b)

1. Locations State EOC, LDEQ HQ, LDEQ EOF, Tensas Parish EOC

2. Extent of Play

3. ARCAs - None 36

Unclassified Radiological Emergency Preparedness Program (REP)

After Action Report/Improvement Plan Grand Gulf Nuclear Station STATE OF LOUISIANA Grand Gulf Nuclear Station 11/1/2011 C. Sub-element 1.d - Communications Equipment Criterion 1.d.1: At least two communication systems are available, at least one operates properly, and communication links are established and maintained with appropriate locations. Communications capabilities are managed in support of emergency operations. (NUREG-0654, F.1, 2)

1. Locations State EOC, LDEQ HQ, LDEQ EOF, JIC, Tensas Parish EOC

2. Extent of Play

a. LDEQ will not demonstrate Field Monitoring Teams during this exercise.

b. Note: Communications may be made with the LDEQ Contract Radiation Laboratory for the purpose of meeting the communication needs of other players. However, the Radiation Laboratory will not be evaluated in this exercise.

3. ARCAs - None D. Sub-element 1.e - Equipment and Supplies to Support Operations Criterion 1.e.1: Equipment, maps, displays, dosimetry, potassium iodide (KI), and other supplies are sufficient to support emergency operations. (NUREG-0654, H.7; J.10.a, b, e; J.11; K.3.a)

1. Locations State EOC, LDEQ HQ, LDEQ EOF, JIC, Tensas Parish EOC, Tensas Parish T/ACP

2. Extent of Play

a. LDEQ will not demonstrate Field Monitoring Teams during this exercise.

b. Correction-on-the-spot will be considered at these locations at the discretion of and concurrence between the evaluator and the 37

Unclassified Radiological Emergency Preparedness Program (REP)

After Action Report/Improvement Plan Grand Gulf Nuclear Station STATE OF LOUISIANA Grand Gulf Nuclear Station 11/1/2011 controller. Caution should be exercised to insure that exercise play is not interrupted. Correction-on-the-spot at Parish EOCs are limited to areas outside the EOC operations area (i.e., emergency worker briefings and issue of dosimetry in other rooms).

3. ARCAs - None II. EVALUATION AREA 2: PROTECTIVE ACTION DECISION-MAKING A. Sub-element 2.a - Emergency Worker Exposure Control Criterion 2.a.1: OROs use a decision-making process, considering relevant factors and appropriate coordination, to insure that an exposure control system, including the use of KI, is in place for emergency workers including provisions to authorize radiation exposure in excess of administrative limits or protective action guides. (NUREG-0654, K.4; J.10.e, f)

1. Locations State EOC, LDEQ EOF, Tensas Parish EOC

2. Extent of Play

a. If the scenario does not warrant a discussion on either the authorization to administer KI or emergency worker (EW) exposure exceeding administrative limits, then the criteria shall be accomplished through an interview with the evaluator.

b. Note: Parish decision-makers receive recommendations for KI and EW exposure from the State EOC.

3. ARCAs - None B. Sub-element 2.b. - Radiological Assessment and Protective Action Recommendations and Decisions for the Plume Phase of the Emergency

1. Criterion 2.b.1: Appropriate protective action recommendations are based on available information on plant conditions, field monitoring data, and licensee and ORO dose projections, as well as knowledge of on-site 38

Unclassified Radiological Emergency Preparedness Program (REP)

After Action Report/Improvement Plan Grand Gulf Nuclear Station STATE OF LOUISIANA Grand Gulf Nuclear Station 11/1/2011 and off-site environmental conditions. (NUREG-0654, I.8, 10 and Supplement 3)

a. Locations State EOC, LDEQ EOF

b. Extent of Play The LDEQ EOF controller may interject simulated field monitoring data to the Dose Assessment Coordinator for the purpose of dose projection validation and verification through back calculations.

c. ARCAs - None

2. Criterion 2.b.2: A decision making process involving consideration of appropriate factors and necessary coordination is used to make protective action decisions (PAD) for the general public (including the recommendation for the use of KI, if ORO policy). (NUREG-0654, J.9; J.10.f, m)

a. Locations State EOC, Tensas Parish EOC

b. Extent of Play

c. According to the State of Louisianas policy, KI is not considered for the general public.

3. ARCAs - None C. Sub-element 2.c - Protective Action Decisions Consideration for the Protection of Special Populations Criterion 2.c.1: Protective action decisions are made, as appropriate, for special population groups. (NUREG-0654, J.9; J.10.d, e)

1. Locations 39

Unclassified Radiological Emergency Preparedness Program (REP)

After Action Report/Improvement Plan Grand Gulf Nuclear Station STATE OF LOUISIANA Grand Gulf Nuclear Station 11/1/2011 Tensas Parish EOC

2. Extent of Play If the scenario does not warrant a discussion on protective action decisions for the protection of special populations, then the criteria shall be accomplished through an interview with the evaluator.

3. ARCAs - None III. EVALUATION AREA 3: PROTECTIVE ACTION IMPLEMENTATION A. Sub-element 3.a - Implementation of Emergency Worker Exposure Control Criterion 3.a.1: The OROs issue appropriate dosimetry and procedures, and manage radiological exposure to emergency workers in accordance with the plans and procedures. Emergency workers periodically and at the end of each mission read their dosimeters and record the readings on the appropriate exposure record or chart. (NUREG-0654, K.3.a, b)

1. Locations LDEQ EOF, Tensas Parish EOC, Tensas Parish T/ACP, Tensas Parish Academy School

2. Extent of Play

a. LDEQ will not demonstrate Field Monitoring Teams during this exercise.

b. Correction-on-the-spot will be considered at these locations at the discretion of and concurrence between the evaluator and the controller. Caution should be exercised to insure that exercise play is not interrupted. Correction-on-the-spot at Parish EOCs are limited to areas outside the EOC operations area (i.e., emergency worker briefings and issue of dosimetry in other rooms).

3. ARCAs - None B. Sub-element 3.b. - Implementation of KI Decision 40

Unclassified Radiological Emergency Preparedness Program (REP)

After Action Report/Improvement Plan Grand Gulf Nuclear Station STATE OF LOUISIANA Grand Gulf Nuclear Station 11/1/2011 Criterion 3.b.1 - KI and appropriate instructions are available should a decision to recommend to use KI be made. Appropriate record-keeping of the administration of KI for emergency workers and institutionalized individuals is maintained. (NUREG-0654, J.10.e)

1. Locations Tensas Parish EOC, LDEQ EOF

2. Extent of Play If the scenario does not warrant a discussion on protective action decisions for the protection of special populations, then the criteria shall be accomplished through an interview with the evaluator.

3. ARCAs - None C. Sub-element 3.c. - Implementation of Protective Actions for Special Populations

1. Criterion 3.c.1 - Protective action decisions are implemented for special populations other than schools within areas subject to protective actions.

a. Locations Tensas Parish EOC

b. Extent of Play The EOC will demonstrate the capability to alert and notify special population facilities, special populations and individuals according to plans and procedures, as applicable, and it will be accomplished through a discussion. Contact with a special facility will be simulated.

a. ARCAs - None

2. Criterion 3.c.2 - OROs/School officials implement protective actions for schools. (NUREG-0654, J.10.c, d, g)

a. Locations 41

Unclassified Radiological Emergency Preparedness Program (REP)

After Action Report/Improvement Plan Grand Gulf Nuclear Station STATE OF LOUISIANA Grand Gulf Nuclear Station 11/1/2011 Tensas Parish Academy School

b. Extent of Play

i. Criterion will be demonstrated by discussion with the school official at the Tensas Parish EOC. A bus driver will also be available for interview. Discussion may also include a transportation official.

ii. Correction-on-the-spot will be considered at these locations at the discretion of and concurrence between the evaluator and the controller. Caution should be exercised to insure that exercise play is not interrupted. Correction on-on-the-spot at Parish EOCs are limited to areas outside the EOC operations area, i.e., emergency worker briefings and issue of dosimetry in other rooms.

c. ARCAs - None B. Sub-element 3.d. - Implementation of Traffic and Access Control

1. Criterion 3.d.1: Appropriate traffic and access control is established. Accurate instructions are provided to traffic and access control personnel. (NUREG-0654, J.10.g, j)

a. Locations Tensas Parish EOC, Tensas Parish T/ACP

b. Extent of Play

i. This may be demonstrated out of sequence. One traffic and access control staff will demonstrate knowledge of their roles and responsibility by discussion with the evaluator.

The discussion will be at or near the EOC. Travel to the traffic and access control point will not be demonstrated. If the scenario does not warrant this discussion at a location, the controller will inject data to stimulate a discussion.

42

Unclassified Radiological Emergency Preparedness Program (REP)

After Action Report/Improvement Plan Grand Gulf Nuclear Station STATE OF LOUISIANA Grand Gulf Nuclear Station 11/1/2011 ii. Correction-on-the-spot will be considered at these locations at the discretion of and concurrence between the evaluator and the controller. Caution should be exercised to insure that exercise play is not interrupted. Correction-on-the-spot at Parish EOCs are limited to areas outside the EOC operations area (i.e., emergency worker briefings and issue of dosimetry in other rooms).

c. ARCAs - None

2. Criterion 3.d.2: Impediments to evacuation are identified and resolved.

(NUREG-0654, J.10.k)

a. Locations Tensas Parish EOC, Tensas Parish T/ACP

b. Extent of Play Evaluation will be by discussion of the capability to identify and take appropriate actions to deal with impediments and may be conducted out-of-sequence.

c. ARCAs - None II. EVALUATION AREA 5: EMERGENCY NOTIFICATION & PUBLIC INFORMATION A. Sub-element 5.a - Activation of the Prompt Alert and Notification System Criterion 5.a.1: Activities associated with primary alerting and notification of the public are completed in a timely manner following the initial decision by authorized offsite emergency officials to notify the public of an emergency situation. The initial instructional message to the public must include as a minimum the elements required by current FEMA REP guidance. (10 CFR Part 50, Appendix E.IV.D & NUREG-0654, E.5, 6, 7)

1. Locations Tensas Parish EOC, KNOE Radio Station 43

Unclassified Radiological Emergency Preparedness Program (REP)

After Action Report/Improvement Plan Grand Gulf Nuclear Station STATE OF LOUISIANA Grand Gulf Nuclear Station 11/1/2011

2. Extent of Play

a. The alert and notification system, activation procedure will be demonstrated up to the point of activation. The siren activation will be simulated.

b. The State EOC will demonstrate through discussion the dissemination of the EAS message to the public.

c. Out of Sequence - A Site Assisted Visit (SAV) to the KNOE Radio Station will be performed on October 31, 2011 at 11:00 am.

d. ARCAs - None B. Sub-element 5.b - Emergency Information and Instructions for the Public and the Media Criterion 5.b.1: OROs provide accurate emergency information and instructions to the public and the news media in a timely manner. (NUREG-0654, E.5, 7; G.3.a, G.4.c)

1. Locations JIC, Tensas Parish EOC

2. Extent of Play Utility, State, and Parish representatives will demonstrate the ability to provide emergency information and instructions to the public consistent with the scenario. News media will not be present. Selected personnel will simulate the role of reporters asking questions during briefings.

Controllers will inject public phone team messages, media phone team messages and news briefing messages.

3. ARCAs - None III. GENERAL EXTENT-OF-PLAY (EOP):

A. With regard to last minute additions or changes to any 44

Unclassified Radiological Emergency Preparedness Program (REP)

After Action Report/Improvement Plan Grand Gulf Nuclear Station STATE OF LOUISIANA Grand Gulf Nuclear Station 11/1/2011 previously approved Extent-of-Play, all suggested changes must be forwarded to the RAC Chair for approval.

B. The goal of all offsite response organizations (ORO) is to protect the health and safety of the public. This goal is achieved through the execution of appropriate plans and procedures. It is recognized that situations may arise that could limit the organizations in the exact execution of these plans and procedures.

C. In the event of an unanticipated situation, OROs are permitted to exercise flexibility in the implementation of their plans and procedures in order to successfully achieve the objective of protection of public health and safety and protection of the environment.

D. As a statement of fact, no ORO will deliberately deviate from its plans and procedures with the intent of avoiding responsibility.

IV.

References:

As indicated in the Extent-of-Play Agreement, the State of Louisiana requests the option to correct issues immediately as defined in FEMA Policy Paper, Strategic Review Steering Committee, Initiative 1.5, correct Issues Immediately, effective March 31, 2000, signed by Kay C. Goss, CEM, Associate Director for Preparedness, Training and Exercises. Acceptable locations/activities for on the spot correction are clearly indicated in the extent of play portion under each criterion.

45

Unclassified Radiological Emergency Preparedness Program (REP)

After Action Report/Improvement Plan Grand Gulf Nuclear Station STATE OF LOUISIANA Grand Gulf Nuclear Station 11/1/2011 OFFSITE OBJECTIVES 46

Unclassified Radiological Emergency Preparedness Program (REP)

After Action Report/Improvement Plan Grand Gulf Nuclear Station STATE OF LOUISIANA GRAND GULF NUCLEAR STATION November 1,2011 I. EVALUATION AREA 1: EMERGENCY OPERATIONS MANAGEMENT A. Sub-element 1.a - Mobilization Criterion 1.a.1: OROs use effective procedures to alert, notify, and mobilize emergency personnel and activate facilities in a timely manner.

(NUREG-0654, A.4; D.3, 4; E.1, 2; H.4)

Locations State EOC, LDEQ HQ, LDEQ EOF, Joint Information Center (JIC), Tensas Parish EOC B. Sub-element 1.c - Direction and Control Criterion 1.c.1: Key personnel with leadership roles for the ORO provide direction and control to that part of the overall response effort for which they are responsible. (NUREG-0654, A.1.d; A.2.a, b)

Locations State EOC, LDEQ HQ, LDEQ EOF, Tensas Parish EOC C. Sub-element 1.d - Communications Equipment Criterion 1.d.1: At least two communication systems are available, at least one operates properly, and communication links are established and maintained with appropriate locations. Communications capabilities are managed in support of emergency operations. (NUREG-0654, F.1, 2)

Locations State EOC, LDEQ HQ, LDEQ EOF, JIC, Tensas Parish EOC D. Sub-element 1.e - Equipment and Supplies to Support Operations Criterion 1.e.1: Equipment, maps, displays, dosimetry, potassium iodide (KI), and other supplies are sufficient to support emergency operations.

(NUREG-0654, H.7; J.10.a, b, e; J.11; K.3.a)

Locations 47

Unclassified Radiological Emergency Preparedness Program (REP)

After Action Report/Improvement Plan Grand Gulf Nuclear Station STATE OF LOUISIANA GRAND GULF NUCLEAR PLANT November 1, 2011 State EOC, LDEQ HQ, LDEQ EOF, JIC, Tensas Parish EOC, Tensas Parish T/ACP II. EVALUATION AREA 2: PROTECTIVE ACTION DECISION-MAKING A. Sub-element 2.a - Emergency Worker Exposure Control Criterion 2.a.1: OROs use a decision-making process, considering relevant factors and appropriate coordination, to insure that an exposure control system, including the use of KI, is in place for emergency workers including provisions to authorize radiation exposure in excess of administrative limits or protective action guides. (NUREG-0654, K.4; J.10.e, f)

Locations State EOC, LDEQ EOF, Tensas Parish EOC B. Sub-element 2.b. - Radiological Assessment and Protective Action Recommendations and Decisions for the Plume Phase of the Emergency

1. Criterion 2.b.1: Appropriate protective action recommendations are based on available information on plant conditions, field monitoring data, and licensee and ORO dose projections, as well as knowledge of on-site and off-site environmental conditions. (NUREG-0654, I.8, 10 and Supplement 3)

Locations State EOC, LDEQ EOF

2. Criterion 2.b.2: A decision making process involving consideration of appropriate factors and necessary coordination is used to make protective action decisions (PAD) for the general public (including the recommendation for the use of KI, if ORO policy). (NUREG-0654, J.9; J.10.f, m)

Locations State EOC, Tensas Parish EOC C. Sub-element 2.c - Protective Action Decisions Consideration for the Protection of Special Populations 48

Unclassified Radiological Emergency Preparedness Program (REP)

After Action Report/Improvement Plan Grand Gulf Nuclear Station STATE OF LOUISIANA GRAND GULF NUCLEAR PLANT November 1, 2011 Criterion 2.c.1: Protective action decisions are made, as appropriate, for special population groups. (NUREG-0654, J.9; J.10.d, e)

Locations Tensas Parish EOC III. EVALUATION AREA 3: PROTECTIVE ACTION IMPLEMENTATION A. Sub-element 3.a - Implementation of Emergency Worker Exposure Control Criterion 3.a.1: The OROs issue appropriate dosimetry and procedures, and manage radiological exposure to emergency workers in accordance with the plans and procedures. Emergency workers periodically and at the end of each mission read their dosimeters and record the readings on the appropriate exposure record or chart. (NUREG-0654, K.3.a, b)

Locations LDEQ EOF, Tensas Parish EOC, Tensas Parish T/ACP, Tensas Parish Academy School B. Sub-element 3.b. - Implementation of KI Decision Criterion 3.b.1 - KI and appropriate instructions are available should a decision to recommend to use KI be made. Appropriate record-keeping of the administration of KI for emergency workers and institutionalized individuals is maintained. (NUREG-0654, J.10.e)

Locations LDEQ EOF, Tensas Parish EOC C. Sub-element 3.c. - Implementation of Protective Actions for Special Populations

1. Criterion 3.c.1 - Protective action decisions are implemented fro special populations other than schools within areas subject to protective actions.

Locations Tensas Parish EOC 49

Unclassified Radiological Emergency Preparedness Program (REP)

After Action Report/Improvement Plan Grand Gulf Nuclear Station STATE OF LOUISIANA GRAND GULF NUCLEAR PLANT November 1, 2011

2. Criterion 3.c.2 - OROs/School officials implement protective actions for schools. (NUREG-0654, J.10.c, d, g)

Locations Tensas Parish Academy School D. Sub-element 3.d. - Implementation of Traffic and Access Control

1. Criterion 3.d.1: Appropriate traffic and access control is established.

Accurate instructions are provided to traffic and access control personnel. (NUREG-0654, J.10.g, j)

Locations Tensas Parish EOC, Tensas Parish T/ACP

2. Criterion 3.d.2: Impediments to evacuation are identified and resolved. (NUREG-0654, J.10.k)

Locations Tensas Parish EOC, Tensas Parish T/ACP IV. EVALUATION AREA 5: EMERGENCY NOTIFICATION & PUBLIC INFORMATION A. Sub-element 5.a - Activation of the Prompt Alert and Notification System Criterion 5.a.1: Activities associated with primary alerting and notification of the public are completed in a timely manner following the initial decision by authorized offsite emergency officials to notify the public of an emergency situation. The initial instructional message to the public must include as a minimum the elements required by current FEMA REP guidance. (10 CFR Part 50, Appendix E.IV.D & NUREG-0654, E.5, 6, 7)

Locations Tensas Parish EOC, KNOE Radio Station B. Sub-element 5.b - Emergency Information and Instructions for the Public and the Media 50

Unclassified Radiological Emergency Preparedness Program (REP)

After Action Report/Improvement Plan Grand Gulf Nuclear Station STATE OF LOUISIANA GRAND GULF NUCLEAR PLANT November 1, 2011 Criterion 5.b.1: OROs provide accurate emergency information and instructions to the public and the news media in a timely manner.

(NUREG-0654, E.5, 7; G.3.a, G.4.c)

Locations JIC, Tensas Parish EOC 51

Unclassified Radiological Emergency Preparedness Program (REP)

After Action Report/Improvement Plan Grand Gulf Nuclear Station STATE OF LOUISIANA GRAND GULF NUCLEAR STATION 11/1/2011 ATTACHMENT B EXERCISE TIMELINE 52

Time Event Details Messages 800 Exercise start The exercise begins at approximately 0830. 1 A fire will occur in Division III switchgear room and inop Division III. (Fire will be simulated inside Div. III switchgear room. Fire brigade member will simulate response.) Simulator will lose 17AC buss.

The fire is simulated to be in the main cable tray that feeds buss 17AC. The cables will After Action Report/Improvement Plan over heat and start to smoke resulting in a smoke alarm in the control room. The cables will continue to heat up until they ignite. This will first cause a CO2 pre-discharge alarm.

Auto actuation of the CO2 system will fail and 815 FIRE no CO2 will be discharged into the room. The 3, 4, 5, 6 fire will continue to burn until the fire brigade applies the proper extinguishing agent. The Unclassified 53 cable will continue to smoke for approximately 10 minutes after the fire is extinguished. Major damage to the cables has occurred. Repair may take weeks. Fire to be extinguished in approximately ten minutes. Radiological Emergency Preparedness Program (REP)

FIRE BRIGADE ACTIVITIES ARE TO BE SIMULATED ONE FIRE BRIGADE MEMBER WILL RESPOND.

820 FIRE DAMAGE Reports of fire damage 7 Grand Gulf Nuclear Station

Time Event Details Messages An ALERT (HA4) should be called based on the fire or explosion affecting the operability 8

of plant safety systems required to establish or maintain safe shutdown.

Alert PI Data (Contingency) 0820-ALERT 0835 ______Initiating Condition Time (report of damage)

After Action Report/Improvement Plan

______Declaration Time

______Notification Time Unclassified With both HPCS (due to loss of Buss 17AC) 54 and LPCS inoperable, the plant should enter Tech. Spec. LCO 3.0.3 via LCO 3.5.1.

9 Shutdown may commence but controllers will prevent a manual reactor scram as the 0820- Control Room shutdown method 0835 Actions Radiological Emergency Preparedness Program (REP)

Activation of Emergency Response Facilities Do not scram should begin. unit 10 Weather 840 CO2 Valve CO2 valve will not open 11 12 0905-ERFs Operational EOF, OSC and TSC should be operational. ERDS 0920 (Contingency)

Grand Gulf Nuclear Station

Time Event Details Messages A feed water line break inside the drywell will 13 occur. Reactor scram will occur. Upon reactor scram, the recirculation pipe crack will LCC-11BD5 fail initiating a LOCA. EP-2 and EP-3 should be entered. RHR B and C pumps start but 14 RHR B trips and RHR C suction valve E12- F042A bkr 004C has a disk to stem separation. (Not recoverable) RHR A starts, but injection valve 15 E12F042A will not open due to breaker problem (E12FO42A indication lost 1E12F028A immediately, but valve is recoverable after After Action Report/Improvement Plan 16 breaker work-valve cannot be operated manually). When RHR A is placed in the RHR B containment spray mode of operation, CTMT FEEDWATER spray valve 1E12F028A fails to open (not 17 LINE BREAK, recoverable and cannot be operated RHR C 930 LOCA & LOSS manually). RCIC starts and injects.

OF 11BD5 Additionally, CRD and SLC are available for Unclassified 55 injection into the RPV. The Control Room will experience a loss of LCC 11BD5. An Operator should be sent to investigate.

Operator will find feeder breaker 52-11501 tripped and will not be able to reclose.

Affected loads should be identified and discussed. Power will be lost to Recirc pump Radiological Emergency Preparedness Program (REP)

A discharge valve B33FO67A, Recirc pump A suction valve B33FO23A and HPU A, as well as other loads. (Loss of power to the B33 valves prevents isolation of drywell leakage)

Operations may call for Attachment 12. Upon LOCA, Drywell pressure will exceed 1.39 PSIG almost instantly.

945 RPV water level RPV water level will drop below -167 Grand Gulf Nuclear Station

Time Event Details Messages A Site Area Emergency (SAE) should be declared based on: FS1-Loss or Potential Loss of ANY Two Barriers. The loss and potential loss are:

18 (Time)_____RC 1 (Loss-Pressure >1.39 psig SAE with indications of reactor coolant leak in Contingency drywell) message and 19 After Action Report/Improvement Plan (Time)_____FC2 (Potential Loss- RPV Evacuation water level less than -167 inches)

Alarm 0945- PI Data SAE 1000 Unclassified

______Initiating Condition Time.

56

______Declaration Time

______Notification Time Radiological Emergency Preparedness Program (REP)

A Site Evacuation should be ordered and personnel accountability initiated.

Crew should be able to restore and maintain RPV water level above -160.

1005 Attachment 12 If requested, Attachment 12 will be completed 1015-Grand Gulf Nuclear Station Evacuation Evacuation accountability should be complete 20 1030 1020-JIC JIC should be operational 1035

Time Event Details Messages Containment pressure will begin to increase.

Operations will perform Emergency Emergency Depressurization based on PSP curve.

1040 Depressurization Operations should request attachment 13 to vent containment. RPV level will go below -

191 in. (Fuel Clad Loss FC2)

Division I SPMU is inoperable due to being DIV I SPMU tagged out, but can be returned to service by 1050 21 INOPERABLE clearing the tag-out, if pursued. The valve can be recovered.

The containment pressure continues to After Action Report/Improvement Plan increase and will reach 15 psig. (15 psig CTMT indicates potential loss of 22 Containment-PC1) A General Emergency (FG1) should be declared based on:

Loss of 2 out of 3 fission product barriers with Contingency a potential loss of 3rd barrier. message Unclassified 57 The two losses: 23 Attachment 13 (Vent line up) will 1100- complete at Radiological Emergency Preparedness Program (REP)

GE 1120 1115 (Time)______FC2 RPV water level <-

191(Loss)

(Time)______RC1 Pressure >1.39 psig with indications of a reactor coolant leak in the drywell (Loss) or (Time) ______RC 2 RPV water level <-167 Grand Gulf Nuclear Station (Loss)

The potential loss:

Time Event Details Messages (Time)______PC1 15 psig and rising in Primary Containment (Potential loss)

PI Data

______Initiating Condition time (Time of third loss or potential loss)

______Declaration time After Action Report/Improvement Plan

______PAR Accuracy

______Notification time

______PAR Notification time Unclassified 58 The Standard PAR should be issued with the General Emergency:

Evacuate: 2 Miles All Sectors Radiological Emergency Preparedness Program (REP) and Evacuate 5 Miles in Downwind Sectors 1100- Protective Action 1115 Recommendation and Shelter: Remainder of 10 Mile Emergency Planning Zone (EPZ) with the exception of areas previously evacuated.

and Grand Gulf Nuclear Station Consider prophylactic use of Potassium Iodide in accordance with State Plans.

Time Event Details Messages 24 Step Off Pad Violation 25 Contaminated personnel After Action Report/Improvement Plan Start of release with Containment Venting. 26 1105 Start of release Release is UNMONITORED and UNFILTERED Simulator Habitability signs 27 Unclassified 59 KI Use 28, 29, 30 OMT Surveys Radiological Emergency Preparedness Program (REP)

If pursued, the repair team on the RHR A F042A breaker will be successful in repairing 1200 RHR A Breaker breaker. Operations may open the valve and 32 inject water into the reactor vessel from the suppression pool.

1215 Wind shift Wind shift into 290º (sectors N,P,Q)

Maintenance will restore power to valves B33F023A and B33F067A. They are Grand Gulf Nuclear Station available for the control room to use to isolate 1320 Leak isolation 33 the leak by closing the valves and begin restoring level to normal. Containment pressure will begin lowering.

Radiological release is terminated due to 1320 Rad Release

Time Event Details Messages Reactor Water 1325 Reactor water level is returned to normal.

Level Recovery discussions should be occurring.

Consideration should be given to placing shut 1335 Recovery down cooling in service and the radiation problems associated with placing it in service.

34 1345 Termination Exercise is terminated. Exercise terminated After Action Report/Improvement Plan Unclassified 60 Radiological Emergency Preparedness Program (REP)

Grand Gulf Nuclear Station

Unclassified Radiological Emergency Preparedness Program (REP)

After Action Report/Improvement Plan Grand Gulf Nuclear Station STATE OF LOUISIANA GRAND GULF NUCLEAR STATION 11/1/2011 ATTACHMENT C METEOROLOGICAL DATA 61

Unclassified Radiological Emergency Preparedness Program (REP)

After Action Report/Improvement Plan Grand Gulf Nuclear Station STATE OF LOUISIANA GRAND GULF NUCLEAR PLANT November 1, 2011 METEOROLOGICAL DATA WIND WIND DIRECTION STATE SIGMA SPEED AFFECTED STABILITY AFFECTED TIME DELTA-T (FROM) (FROM)

THETA SECTORS CLASS BY CENTER MIN MAX MIN MAX LINE 9:35 15.0 11.2 9 15 65 70 L, M, N C BOTH 9:40 15.0 11.2 9 15 65 70 L, M, N C BOTH 9:45 15.0 11.2 9 15 65 70 L, M, N C BOTH 9:50 15.0 11.2 9 15 65 70 L, M, N C BOTH 9:55 15.0 11.2 9 15 65 70 L, M, N C BOTH 10:00 15.0 11.2 9 15 65 70 L, M, N C BOTH 10:05 15.0 11.2 9 15 65 70 L, M, N C BOTH 10:10 15.0 11.2 9 15 65 70 L, M, N C BOTH 10:15 15.0 11.2 9 15 65 70 L, M, N C BOTH 10:20 15.0 11.2 9 15 65 70 L, M, N C BOTH 10:25 15.0 11.2 9 15 65 70 L, M, N C BOTH 10:30 15.0 11.2 9 15 65 70 L, M, N C BOTH 10:35 15.0 11.2 9 15 65 70 L, M, N C BOTH 10:40 15.0 11.2 9 15 65 70 L, M, N C BOTH 10:45 15.0 11.2 9 15 65 70 L, M, N C BOTH 10:50 15.0 11.2 9 15 65 70 L, M, N C BOTH 10:55 15.0 11.2 9 15 65 70 L, M, N C BOTH 11:00 15.0 11.2 9 15 65 70 L, M, N C BOTH 11:05 15.0 11.2 9 15 65 70 L, M, N C BOTH 11:10 15.0 11.2 9 15 65 70 L, M, N C BOTH 11:15 15.0 11.2 9 15 65 70 L, M, N C BOTH 11:20 15.0 11.2 9 15 65 70 L, M, N C BOTH 11:25 15.0 11.2 9 15 65 70 L, M, N C BOTH 11:30 15.0 11.2 9 15 65 70 L, M, N C BOTH 62

Unclassified Radiological Emergency Preparedness Program (REP)

After Action Report/Improvement Plan Grand Gulf Nuclear Station STATE OF LOUISIANA GRAND GULF NUCLEAR PLANT November 1, 2011 METEOROLOGICAL DATA WIND WIND DIRECTION STATE SIGMA SPEED AFFECTED STABILITY AFFECTED TIME DELTA-T (FROM) (FROM)

THETA SECTORS CLASS BY CENTER MIN MAX MIN MAX LINE 11:35 15.0 11.2 9 15 65 70 L, M, N C BOTH 11:40 15.0 11.2 9 15 65 70 L, M, N C BOTH 11:45 15.0 11.2 9 15 65 70 L, M, N C BOTH 11:50 15.0 11.2 9 15 65 70 L, M, N C BOTH 11:55 15.0 11.2 9 15 65 70 L, M, N C BOTH 12:00 15.0 11.2 9 15 65 70 L, M, N C BOTH 12:05 15.0 11.2 9 15 65 70 L, M, N C BOTH 12:10 15.0 11.2 9 15 65 70 L, M, N C BOTH 12:15 15.0 11.2 9 15 65 70 L, M, N C BOTH 12:20 15.0 11.2 9 15 40 50 K, L, M C MS 12:25 15.0 11.2 9 15 40 50 K, L, M C MS 12:30 15.0 11.2 9 15 40 50 K, L, M C MS 12:35 15.0 11.2 9 15 20 24 J, K, L C MS 12:40 15.0 11.2 9 15 20 24 J, K, L C MS 12:45 15.0 11.2 9 15 20 24 J, K, L C MS 12:50 15.0 11.2 9 15 0 10 H, J, K C MS 12:55 15.0 11.2 9 15 0 10 H, J, K C MS 13:00 15.0 11.2 9 15 0 10 H, J, K C MS 13:05 15.0 11.2 9 15 40 50 K, L, M C MS 13:10 15.0 11.2 9 15 40 50 K, L, M C MS 13:15 15.0 11.2 9 15 40 50 K, L, M C MS 13:20 15.0 11.2 9 15 20 24 J, K, L C MS 13:25 15.0 11.2 9 15 20 24 J, K, L C MS 13:30 15.0 11.2 9 15 20 24 J, K, L C MS 13:35 15.0 11.2 9 15 0 10 H, J, K C MS 63

Unclassified Radiological Emergency Preparedness Program (REP)

After Action Report/Improvement Plan Grand Gulf Nuclear Station STATE OF LOUISIANA GRAND GULF NUCLEAR PLANT November 1, 2011 METEOROLOGICAL DATA WIND WIND DIRECTION STATE SIGMA SPEED AFFECTED STABILITY AFFECTED TIME DELTA-T (FROM) (FROM)

THETA SECTORS CLASS BY CENTER MIN MAX MIN MAX LINE 13:40 15.0 11.2 9 15 0 10 H, J, K C MS 13:45 15.0 11.2 9 15 0 10 H, J, K C MS 13:50 15.0 11.2 9 15 330 342 G, H, J C MS 13:55 15.0 11.2 9 15 330 342 G, H, J C MS 14:00 15.0 11.2 9 15 330 342 G, H, J C MS 14:05 15.0 11.2 9 15 330 342 G, H, J C MS 14:10 15.0 11.2 9 15 330 342 G, H, J C MS 14:15 15.0 11.2 9 15 330 342 G, H, J C MS 14:20 15.0 11.2 9 15 330 342 G, H, J C MS 14:25 15.0 11.2 9 15 330 342 G, H, J C MS 14:30 15.0 11.2 9 15 330 342 G, H, J C MS 14:35 15.0 11.2 9 15 330 342 G, H, J C MS 14:40 15.0 11.2 9 15 330 342 G, H, J C MS 14:45 15.0 11.2 9 15 330 342 G, H, J C MS 14:50 15.0 11.2 9 15 330 342 G, H, J C MS 14:55 15.0 11.2 9 15 330 342 G, H, J C MS 64

Unclassified Radiological Emergency Preparedness Program (REP)

After Action Report/Improvement Plan Grand Gulf Nuclear Station STATE OF LOUISIANA GRAND GULF NUCLEAR STATION 11/1/2011 ATTACHMENT D UTILITY RADIOLOGICAL DATA 65

Unclassified Radiological Emergency Preparedness Program (REP)

After Action Report/Improvement Plan Grand Gulf Nuclear Station STATE OF LOUISIANA GRAND GULF NUCLEAR STATION 11/1/2011 0.1 MILE TIMES DOSE RATE DATA AIR SAMPLE DATA TIME CHEST TIME OF OF CHEST LEVEL WAIST ANKLE ANKLE PART IODINE RELEASE FIELD LEVEL BWC BWO WAIST BWC BWO BWC ACTIVITY ACTIVITY DATA DATA BWO MR/HR MR/HR MR/HR MR/HR (3) MR/HR MR/HR (uCi/cc) (µCi/cc) 09:35 09:35 0.0 0.0 0.0 0.0 0.0 0.0 <9E-10 <1E-7 09:40 09:40 0.0 0.0 0.0 0.0 0.0 0.0 <9E-10 <1E-7 09:45 09:45 0.0 0.0 0.0 0.0 0.0 0.0 <9E-10 <1E-7 09:50 09:50 0.0 0.0 0.0 0.0 0.0 0.0 <9E-10 <1E-7 09:55 09:55 0.0 0.0 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:00 10:00 0.0 0.0 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:05 10:05 0.0 0.0 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:10 10:10 0.0 0.0 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:15 10:15 0.0 0.0 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:20 10:20 0.0 0.0 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:25 10:25 0.0 0.0 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:30 10:30 0.0 0.0 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:35 10:35 0.0 0.0 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:40 10:40 0.0 0.0 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:45 10:45 0.0 0.0 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:50 10:50 0.0 0.0 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:55 10:55 0.0 0.0 0.0 0.0 0.0 0.0 <9E-10 <1E-7 11:00 11:00 0.0 0.0 0.0 0.0 0.0 0.0 <9E-10 <1E-7 11:05 11:05 0.0 0.0 0.0 0.0 0.0 0.0 <9E-10 <1E-7 11:10 11:10 0.0 0.0 0.0 0.0 0.0 0.0 <9E-10 <1E-7 11:15 11:15 0.0 0.0 0.0 0.0 0.0 0.0 <9E-10 <1E-7 11:20 11:20 0.0 0.0 0.0 0.0 0.0 0.0 <9E-10 <1E-7 11:25 11:25 0.0 0.0 0.0 0.0 0.0 0.0 <9E-10 <1E-7 11:30 11:30 86.6 72.2 86.6 72.2 86.6 72.2 1.03E-05 2.58E-04 11:35 11:35 188.8 157.3 188.8 157.3 188.8 157.3 2.29E-05 5.73E-04 11:40 11:40 393.6 328.0 393.6 328.0 393.6 328.0 4.90E-05 1.23E-03 11:45 11:45 661.6 551.3 661.6 551.3 661.6 551.3 8.42E-05 2.10E-03 11:50 11:50 897.5 747.9 897.5 747.9 897.5 747.9 1.17E-04 2.92E-03 11:55 11:55 1007.9 839.9 1007.9 839.9 1007.9 839.9 1.34E-04 3.36E-03 12:00 12:00 5123.1 4269.2 5123.1 4269.2 5123.1 4269.2 4.65E-04 1.16E-02 12:05 12:05 5313.4 4427.9 5313.4 4427.9 5313.4 4427.9 4.91E-04 1.23E-02 12:10 12:10 5710.7 4758.9 5710.7 4758.9 5710.7 4758.9 5.43E-04 1.36E-02 12:15 12:15 6004.5 5003.8 6004.5 5003.8 6004.5 5003.8 5.89E-04 1.47E-02 12:20 12:20 6149.4 5124.5 6149.4 5124.5 6149.4 5124.5 6.12E-04 1.53E-02 12:25 12:25 5855.6 4879.6 5855.6 4879.6 5855.6 4879.6 5.66E-04 1.41E-02 12:30 12:30 5528.6 4607.2 5528.6 4607.2 5528.6 4607.2 5.18E-04 1.29E-02 12:35 12:35 146.1 121.7 146.1 121.7 146.1 121.7 1.48E-05 3.70E-04 12:40 12:40 109.7 91.4 109.7 91.4 109.7 91.4 1.13E-05 2.82E-04 12:45 12:45 72.8 60.7 85.8 85.8 85.8 85.8 7.62E-06 1.90E-04 12:50 12:50 36.6 30.5 85.8 85.8 85.8 85.8 3.86E-06 9.66E-05 12:55 12:55 14.6 12.2 85.8 85.8 85.8 85.8 1.57E-06 3.92E-05 13:00 13:00 0.1 0.1 85.8 85.8 85.8 85.8 <9E-10 <1E-7 13:05 13:05 0.1 0.1 85.8 85.8 85.8 85.8 <9E-10 <1E-7 13:10 13:10 0.1 0.1 85.8 85.8 85.8 85.8 <9E-10 <1E-7 13:15 13:15 0.1 0.1 85.8 85.8 85.8 85.8 <9E-10 <1E-7 13:20 13:20 0.1 0.1 85.8 85.8 85.8 85.8 <9E-10 <1E-7 13:25 13:25 0.1 0.1 85.8 85.8 85.8 85.8 <9E-10 <1E-7 13:30 13:30 0.1 0.1 85.8 85.8 85.8 85.8 <9E-10 <1E-7 13:35 13:35 0.1 0.1 85.8 85.8 85.8 85.8 <9E-10 <1E-7 66

Unclassified Radiological Emergency Preparedness Program (REP)

After Action Report/Improvement Plan Grand Gulf Nuclear Station STATE OF LOUISIANA GRAND GULF NUCLEAR PLANT November 1, 2011 0.2 MILE TIMES DOSE RATE DATA AIR SAMPLE DATA TIME CHEST TIME OF OF CHEST LEVEL WAIST ANKLE ANKLE PART IODINE RELEASE FIELD LEVEL BWC BWO WAIST BWC BWO BWC ACTIVITY ACTIVITY DATA DATA BWO MR/HR MR/HR MR/HR MR/HR (3) MR/HR MR/HR (uCi/cc) (µCi/cc) 09:35 09:36 0.0 0.0 0.0 0.0 0.0 0.0 <9E-10 <1E-7 09:40 09:41 0.0 0.0 0.0 0.0 0.0 0.0 <9E-10 <1E-7 09:45 09:46 0.0 0.0 0.0 0.0 0.0 0.0 <9E-10 <1E-7 09:50 09:51 0.0 0.0 0.0 0.0 0.0 0.0 <9E-10 <1E-7 09:55 09:56 0.0 0.0 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:00 10:01 0.0 0.0 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:05 10:06 0.0 0.0 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:10 10:11 0.0 0.0 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:15 10:16 0.0 0.0 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:20 10:21 0.0 0.0 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:25 10:26 0.0 0.0 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:30 10:31 0.0 0.0 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:35 10:36 0.0 0.0 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:40 10:41 0.0 0.0 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:45 10:46 0.0 0.0 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:50 10:51 0.0 0.0 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:55 10:56 0.0 0.0 0.0 0.0 0.0 0.0 <9E-10 <1E-7 11:00 11:01 0.0 0.0 0.0 0.0 0.0 0.0 <9E-10 <1E-7 11:05 11:06 0.0 0.0 0.0 0.0 0.0 0.0 <9E-10 <1E-7 11:10 11:11 0.0 0.0 0.0 0.0 0.0 0.0 <9E-10 <1E-7 11:15 11:16 0.0 0.0 0.0 0.0 0.0 0.0 <9E-10 <1E-7 11:20 11:21 0.0 0.0 0.0 0.0 0.0 0.0 <9E-10 <1E-7 11:25 11:26 0.0 0.0 0.0 0.0 0.0 0.0 <9E-10 <1E-7 11:30 11:31 41.5 34.6 41.5 34.6 41.5 34.6 3.50E-06 8.74E-05 11:35 11:36 90.3 75.3 90.3 75.3 90.3 75.3 7.77E-06 1.94E-04 11:40 11:41 188.3 157.0 188.3 157.0 188.3 157.0 1.66E-05 4.16E-04 11:45 11:46 316.6 263.8 316.6 263.8 316.6 263.8 2.86E-05 7.14E-04 11:50 11:51 429.5 357.9 429.5 357.9 429.5 357.9 3.96E-05 9.90E-04 11:55 11:56 482.4 402.0 482.4 402.0 482.4 402.0 4.56E-05 1.14E-03 12:00 12:01 2362.5 1968.8 2362.5 1968.8 2362.5 1968.8 2.28E-04 5.71E-03 12:05 12:06 2450.3 2041.9 2450.3 2041.9 2450.3 2041.9 2.41E-04 6.04E-03 12:10 12:11 2633.5 2194.6 2633.5 2194.6 2633.5 2194.6 2.67E-04 6.67E-03 12:15 12:16 2769.0 2307.5 2769.0 2307.5 2769.0 2307.5 2.89E-04 7.24E-03 12:20 12:21 2835.8 2363.2 2835.8 2363.2 2835.8 2363.2 3.01E-04 7.52E-03 12:25 12:26 2700.3 2250.3 2700.3 2250.3 2700.3 2250.3 2.78E-04 6.95E-03 12:30 12:31 2549.6 2124.6 2549.6 2124.6 2549.6 2124.6 2.54E-04 6.36E-03 12:35 12:36 67.4 56.1 85.8 85.8 85.8 85.8 7.27E-06 1.82E-04 12:40 12:41 50.6 42.1 85.8 85.8 85.8 85.8 5.53E-06 1.38E-04 12:45 12:46 33.6 28.0 85.8 85.8 85.8 85.8 3.74E-06 9.36E-05 12:50 12:51 16.9 14.1 85.8 85.8 85.8 85.8 1.90E-06 4.74E-05 12:55 12:56 6.7 5.6 85.8 85.8 85.8 85.8 7.70E-07 1.92E-05 13:00 13:01 0.0 0.0 85.8 85.8 85.8 85.8 <9E-10 <1E-7 13:05 13:06 0.0 0.0 85.8 85.8 85.8 85.8 <9E-10 <1E-7 13:10 13:11 0.0 0.0 85.8 85.8 85.8 85.8 <9E-10 <1E-7 13:15 13:16 0.0 0.0 85.8 85.8 85.8 85.8 <9E-10 <1E-7 13:20 13:21 0.0 0.0 85.8 85.8 85.8 85.8 <9E-10 <1E-7 13:25 13:26 0.0 0.0 85.8 85.8 85.8 85.8 <9E-10 <1E-7 13:30 13:31 0.0 0.0 85.8 85.8 85.8 85.8 <9E-10 <1E-7 13:35 13:36 0.0 0.0 85.8 85.8 85.8 85.8 <9E-10 <1E-7 67

Unclassified Radiological Emergency Preparedness Program (REP)

After Action Report/Improvement Plan Grand Gulf Nuclear Station STATE OF LOUISIANA GRAND GULF NUCLEAR PLANT November 1, 2011 0.3 MILE TIMES DOSE RATE DATA AIR SAMPLE DATA TIME CHEST TIME OF OF CHEST LEVEL WAIST ANKLE ANKLE PART IODINE RELEASE FIELD LEVEL BWC BWO WAIST BWC BWO BWC ACTIVITY ACTIVITY DATA DATA BWO MR/HR MR/HR MR/HR MR/HR (3) MR/HR MR/HR (uCi/cc) (µCi/cc) 09:35 09:36 0.0 0.0 0.0 0.0 0.0 0.0 <9E-10 <1E-7 09:40 09:41 0.0 0.0 0.0 0.0 0.0 0.0 <9E-10 <1E-7 09:45 09:46 0.0 0.0 0.0 0.0 0.0 0.0 <9E-10 <1E-7 09:50 09:51 0.0 0.0 0.0 0.0 0.0 0.0 <9E-10 <1E-7 09:55 09:56 0.0 0.0 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:00 10:01 0.0 0.0 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:05 10:06 0.0 0.0 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:10 10:11 0.0 0.0 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:15 10:16 0.0 0.0 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:20 10:21 0.0 0.0 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:25 10:26 0.0 0.0 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:30 10:31 0.0 0.0 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:35 10:36 0.0 0.0 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:40 10:41 0.0 0.0 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:45 10:46 0.0 0.0 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:50 10:51 0.0 0.0 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:55 10:56 0.0 0.0 0.0 0.0 0.0 0.0 <9E-10 <1E-7 11:00 11:01 0.0 0.0 0.0 0.0 0.0 0.0 <9E-10 <1E-7 11:05 11:06 0.0 0.0 0.0 0.0 0.0 0.0 <9E-10 <1E-7 11:10 11:11 0.0 0.0 0.0 0.0 0.0 0.0 <9E-10 <1E-7 11:15 11:16 0.0 0.0 0.0 0.0 0.0 0.0 <9E-10 <1E-7 11:20 11:21 0.0 0.0 0.0 0.0 0.0 0.0 <9E-10 <1E-7 11:25 11:26 0.0 0.0 0.0 0.0 0.0 0.0 <9E-10 <1E-7 11:30 11:31 23.7 19.8 23.7 19.8 23.7 19.8 1.90E-06 4.76E-05 11:35 11:36 51.7 43.1 51.7 43.1 51.7 43.1 4.23E-06 1.06E-04 11:40 11:41 107.9 89.9 107.9 89.9 107.9 89.9 9.05E-06 2.26E-04 11:45 11:46 181.3 151.1 181.3 151.1 181.3 151.1 1.55E-05 3.88E-04 11:50 11:51 246.0 205.0 246.0 205.0 246.0 205.0 2.15E-05 5.38E-04 11:55 11:56 276.3 230.2 276.3 230.2 276.3 230.2 2.48E-05 6.20E-04 12:00 12:01 1337.9 1114.9 1337.9 1114.9 1337.9 1114.9 1.27E-04 3.16E-03 12:05 12:06 1387.6 1156.4 1387.6 1156.4 1387.6 1156.4 1.34E-04 3.35E-03 12:10 12:11 1491.4 1242.8 1491.4 1242.8 1491.4 1242.8 1.48E-04 3.70E-03 12:15 12:16 1568.1 1306.8 1568.1 1306.8 1568.1 1306.8 1.60E-04 4.01E-03 12:20 12:21 1605.9 1338.3 1605.9 1338.3 1605.9 1338.3 1.67E-04 4.17E-03 12:25 12:26 1529.2 1274.3 1529.2 1274.3 1529.2 1274.3 1.54E-04 3.85E-03 12:30 12:31 1443.8 1203.2 1443.8 1203.2 1443.8 1203.2 1.41E-04 3.53E-03 12:35 12:36 38.1 31.8 85.8 85.8 85.8 85.8 4.03E-06 1.01E-04 12:40 12:41 28.6 23.9 85.8 85.8 85.8 85.8 3.07E-06 7.67E-05 12:45 12:46 19.0 15.9 85.8 85.8 85.8 85.8 2.07E-06 5.19E-05 12:50 12:51 9.6 8.0 85.8 85.8 85.8 85.8 1.05E-06 2.63E-05 12:55 12:56 3.8 3.2 85.8 85.8 85.8 85.8 4.27E-07 1.07E-05 13:00 13:01 0.0 0.0 85.8 85.8 85.8 85.8 <9E-10 <1E-7 13:05 13:06 0.0 0.0 85.8 85.8 85.8 85.8 <9E-10 <1E-7 13:10 13:11 0.0 0.0 85.8 85.8 85.8 85.8 <9E-10 <1E-7 13:15 13:16 0.0 0.0 85.8 85.8 85.8 85.8 <9E-10 <1E-7 13:20 13:21 0.0 0.0 85.8 85.8 85.8 85.8 <9E-10 <1E-7 13:25 13:26 0.0 0.0 85.8 85.8 85.8 85.8 <9E-10 <1E-7 13:30 13:31 0.0 0.0 85.8 85.8 85.8 85.8 <9E-10 <1E-7 13:35 13:36 0.0 0.0 85.8 85.8 85.8 85.8 <9E-10 <1E-7 68

Unclassified Radiological Emergency Preparedness Program (REP)

After Action Report/Improvement Plan Grand Gulf Nuclear Station STATE OF LOUISIANA GRAND GULF NUCLEAR PLANT November 1, 2011 0.4 MILE TIMES DOSE RATE DATA AIR SAMPLE DATA TIME CHEST TIME OF OF CHEST LEVEL WAIST ANKLE ANKLE PART IODINE RELEASE FIELD LEVEL BWC BWO WAIST BWC BWO BWC ACTIVITY ACTIVITY DATA DATA BWO MR/HR MR/HR MR/HR MR/HR (3) MR/HR MR/HR (uCi/cc) (µCi/cc) 09:35 09:37 0.0 0.0 0.0 0.0 0.0 0.0 <9E-10 <1E-7 09:40 09:42 0.0 0.0 0.0 0.0 0.0 0.0 <9E-10 <1E-7 09:45 09:47 0.0 0.0 0.0 0.0 0.0 0.0 <9E-10 <1E-7 09:50 09:52 0.0 0.0 0.0 0.0 0.0 0.0 <9E-10 <1E-7 09:55 09:57 0.0 0.0 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:00 10:02 0.0 0.0 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:05 10:07 0.0 0.0 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:10 10:12 0.0 0.0 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:15 10:17 0.0 0.0 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:20 10:22 0.0 0.0 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:25 10:27 0.0 0.0 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:30 10:32 0.0 0.0 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:35 10:37 0.0 0.0 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:40 10:42 0.0 0.0 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:45 10:47 0.0 0.0 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:50 10:52 0.0 0.0 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:55 10:57 0.0 0.0 0.0 0.0 0.0 0.0 <9E-10 <1E-7 11:00 11:02 0.0 0.0 0.0 0.0 0.0 0.0 <9E-10 <1E-7 11:05 11:07 0.0 0.0 0.0 0.0 0.0 0.0 <9E-10 <1E-7 11:10 11:12 0.0 0.0 0.0 0.0 0.0 0.0 <9E-10 <1E-7 11:15 11:17 0.0 0.0 0.0 0.0 0.0 0.0 <9E-10 <1E-7 11:20 11:22 0.0 0.0 0.0 0.0 0.0 0.0 <9E-10 <1E-7 11:25 11:27 0.0 0.0 0.0 0.0 0.0 0.0 <9E-10 <1E-7 11:30 11:32 15.5 12.9 15.5 12.9 15.5 12.9 1.23E-06 3.07E-05 11:35 11:37 33.7 28.1 33.7 28.1 33.7 28.1 2.73E-06 6.82E-05 11:40 11:42 70.3 58.6 70.3 58.6 70.3 58.6 5.84E-06 1.46E-04 11:45 11:47 118.1 98.4 118.1 98.4 118.1 98.4 1.00E-05 2.51E-04 11:50 11:52 160.3 133.6 160.3 133.6 160.3 133.6 1.39E-05 3.47E-04 11:55 11:57 180.0 150.0 180.0 150.0 180.0 150.0 1.60E-05 4.00E-04 12:00 12:02 846.8 705.7 846.8 705.7 846.8 705.7 8.01E-05 2.00E-03 12:05 12:07 878.3 731.9 878.3 731.9 878.3 731.9 8.47E-05 2.12E-03 12:10 12:12 943.9 786.6 943.9 786.6 943.9 786.6 9.37E-05 2.34E-03 12:15 12:17 992.5 827.1 992.5 827.1 992.5 827.1 1.02E-04 2.54E-03 12:20 12:22 1016.4 847.0 1016.4 847.0 1016.4 847.0 1.06E-04 2.64E-03 12:25 12:27 967.9 806.6 967.9 806.6 967.9 806.6 9.76E-05 2.44E-03 12:30 12:32 913.8 761.5 913.8 761.5 913.8 761.5 8.93E-05 2.23E-03 12:35 12:37 24.1 20.1 85.8 85.8 85.8 85.8 2.55E-06 6.38E-05 12:40 12:42 18.1 15.1 85.8 85.8 85.8 85.8 1.94E-06 4.85E-05 12:45 12:47 12.0 10.0 85.8 85.8 85.8 85.8 1.31E-06 3.28E-05 12:50 12:52 6.0 5.0 85.8 85.8 85.8 85.8 6.66E-07 1.66E-05 12:55 12:57 2.4 2.0 85.8 85.8 85.8 85.8 2.70E-07 6.75E-06 13:00 13:02 0.0 0.0 85.8 85.8 85.8 85.8 <9E-10 <1E-7 13:05 13:07 0.0 0.0 85.8 85.8 85.8 85.8 <9E-10 <1E-7 13:10 13:12 0.0 0.0 85.8 85.8 85.8 85.8 <9E-10 <1E-7 13:15 13:17 0.0 0.0 85.8 85.8 85.8 85.8 <9E-10 <1E-7 13:20 13:22 0.0 0.0 85.8 85.8 85.8 85.8 <9E-10 <1E-7 13:25 13:27 0.0 0.0 85.8 85.8 85.8 85.8 <9E-10 <1E-7 13:30 13:32 0.0 0.0 85.8 85.8 85.8 85.8 <9E-10 <1E-7 13:35 13:37 0.0 0.0 85.8 85.8 85.8 85.8 <9E-10 <1E-7 69

Unclassified Radiological Emergency Preparedness Program (REP)

After Action Report/Improvement Plan Grand Gulf Nuclear Station STATE OF LOUISIANA GRAND GULF NUCLEAR PLANT November 1, 2011 0.5 MILE TIMES DOSE RATE DATA AIR SAMPLE DATA TIME CHEST TIME OF OF CHEST LEVEL WAIST PART IODINE RELEASE FIELD LEVEL BWC BWO WAIST BWC ANKLE ANKLE ACTIVITY ACTIVITY DATA DATA BWO MR/HR MR/HR MR/HR MR/HR (3) BWO MR/HR BWC MR/HR (uCi/cc) (µCi/cc) 09:35 09:37 0.0 0.0 0.0 0.0 0.0 0.0 <9E-10 <1E-7 09:40 09:42 0.0 0.0 0.0 0.0 0.0 0.0 <9E-10 <1E-7 09:45 09:47 0.0 0.0 0.0 0.0 0.0 0.0 <9E-10 <1E-7 09:50 09:52 0.0 0.0 0.0 0.0 0.0 0.0 <9E-10 <1E-7 09:55 09:57 0.0 0.0 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:00 10:02 0.0 0.0 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:05 10:07 0.0 0.0 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:10 10:12 0.0 0.0 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:15 10:17 0.0 0.0 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:20 10:22 0.0 0.0 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:25 10:27 0.0 0.0 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:30 10:32 0.0 0.0 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:35 10:37 0.0 0.0 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:40 10:42 0.0 0.0 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:45 10:47 0.0 0.0 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:50 10:52 0.0 0.0 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:55 10:57 0.0 0.0 0.0 0.0 0.0 0.0 <9E-10 <1E-7 11:00 11:02 0.0 0.0 0.0 0.0 0.0 0.0 <9E-10 <1E-7 11:05 11:07 0.0 0.0 0.0 0.0 0.0 0.0 <9E-10 <1E-7 11:10 11:12 0.0 0.0 0.0 0.0 0.0 0.0 <9E-10 <1E-7 11:15 11:17 0.0 0.0 0.0 0.0 0.0 0.0 <9E-10 <1E-7 11:20 11:22 0.0 0.0 0.0 0.0 0.0 0.0 <9E-10 <1E-7 11:25 11:27 0.0 0.0 0.0 0.0 0.0 0.0 <9E-10 <1E-7 11:30 11:32 19.0 9.5 19.0 9.5 19.0 9.5 8.59E-07 2.15E-05 11:35 11:37 41.4 20.7 41.4 20.7 41.4 20.7 1.91E-06 4.77E-05 11:40 11:42 86.3 43.1 86.3 43.1 86.3 43.1 4.09E-06 1.02E-04 11:45 11:47 145.0 72.5 145.0 72.5 145.0 72.5 7.01E-06 1.75E-04 11:50 11:52 196.7 98.4 196.7 98.4 196.7 98.4 9.73E-06 2.43E-04 11:55 11:57 220.9 110.5 220.9 110.5 220.9 110.5 1.12E-05 2.80E-04 12:00 12:02 973.9 487.0 973.9 487.0 973.9 487.0 5.53E-05 1.38E-03 12:05 12:07 1010.1 505.0 1010.1 505.0 1010.1 505.0 5.85E-05 1.46E-03 12:10 12:12 1085.6 542.8 1085.6 542.8 1085.6 542.8 6.47E-05 1.62E-03 12:15 12:17 1141.5 570.8 1141.5 570.8 1141.5 570.8 7.01E-05 1.75E-03 12:20 12:22 1168.9 584.4 1168.9 584.4 1168.9 584.4 7.29E-05 1.82E-03 12:25 12:27 1113.2 556.6 1113.2 556.6 1113.2 556.6 6.74E-05 1.68E-03 12:30 12:32 1051.0 525.5 1051.0 525.5 1051.0 525.5 6.16E-05 1.54E-03 12:35 12:37 27.8 13.9 61.9 56.3 112.5 56.3 1.76E-06 4.40E-05 12:40 12:42 20.8 10.4 61.9 56.3 112.5 56.3 1.34E-06 3.35E-05 12:45 12:47 13.8 6.9 61.9 56.3 112.5 56.3 9.06E-07 2.27E-05 12:50 12:52 7.0 3.5 61.9 56.3 116.9 58.5 4.60E-07 1.15E-05 12:55 12:57 2.8 1.4 61.9 56.3 116.9 58.5 1.86E-07 4.66E-06 13:00 13:02 0.0 0.0 61.9 56.3 116.9 58.5 <9E-10 <1E-7 13:05 13:07 0.0 0.0 61.9 56.3 116.9 58.5 <9E-10 <1E-7 13:10 13:12 0.0 0.0 61.9 56.3 116.9 58.5 <9E-10 <1E-7 13:15 13:17 0.0 0.0 61.9 56.3 116.9 58.5 <9E-10 <1E-7 13:20 13:22 0.0 0.0 61.9 56.3 116.9 58.5 <9E-10 <1E-7 13:25 13:27 0.0 0.0 61.9 56.3 116.9 58.5 <9E-10 <1E-7 13:30 13:32 0.0 0.0 61.9 56.3 116.9 58.5 <9E-10 <1E-7 13:35 13:37 0.0 0.0 61.9 56.3 116.9 58.5 <9E-10 <1E-7 70

Unclassified Radiological Emergency Preparedness Program (REP)

After Action Report/Improvement Plan Grand Gulf Nuclear Station STATE OF LOUISIANA GRAND GULF NUCLEAR PLANT November 1, 2011 0.6 MILE TIMES DOSE RATE DATA AIR SAMPLE DATA TIME CHEST TIME OF OF CHEST LEVEL WAIST ANKLE ANKLE PART IODINE RELEASE FIELD LEVEL BWC BWO WAIST BWC BWO BWC ACTIVITY ACTIVITY DATA DATA BWO MR/HR MR/HR MR/HR MR/HR (3) MR/HR MR/HR (uCi/cc) (µCi/cc) 09:35 09:38 0.0 0.0 0.0 0.0 0.0 0.0 <9E-10 <1E-7 09:40 09:43 0.0 0.0 0.0 0.0 0.0 0.0 <9E-10 <1E-7 09:45 09:48 0.0 0.0 0.0 0.0 0.0 0.0 <9E-10 <1E-7 09:50 09:53 0.0 0.0 0.0 0.0 0.0 0.0 <9E-10 <1E-7 09:55 09:58 0.0 0.0 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:00 10:03 0.0 0.0 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:05 10:08 0.0 0.0 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:10 10:13 0.0 0.0 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:15 10:18 0.0 0.0 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:20 10:23 0.0 0.0 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:25 10:28 0.0 0.0 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:30 10:33 0.0 0.0 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:35 10:38 0.0 0.0 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:40 10:43 0.0 0.0 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:45 10:48 0.0 0.0 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:50 10:53 0.0 0.0 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:55 10:58 0.0 0.0 0.0 0.0 0.0 0.0 <9E-10 <1E-7 11:00 11:03 0.0 0.0 0.0 0.0 0.0 0.0 <9E-10 <1E-7 11:05 11:08 0.0 0.0 0.0 0.0 0.0 0.0 <9E-10 <1E-7 11:10 11:13 0.0 0.0 0.0 0.0 0.0 0.0 <9E-10 <1E-7 11:15 11:18 0.0 0.0 0.0 0.0 0.0 0.0 <9E-10 <1E-7 11:20 11:23 0.0 0.0 0.0 0.0 0.0 0.0 <9E-10 <1E-7 11:25 11:28 0.0 0.0 0.0 0.0 0.0 0.0 <9E-10 <1E-7 11:30 11:33 13.4 6.7 13.4 6.7 13.4 6.7 6.75E-07 1.69E-05 11:35 11:38 29.2 14.6 29.2 14.6 29.2 14.6 1.50E-06 3.75E-05 11:40 11:43 60.9 30.4 60.9 30.4 60.9 30.4 3.21E-06 8.03E-05 11:45 11:48 102.4 51.2 102.4 51.2 102.4 51.2 5.51E-06 1.38E-04 11:50 11:53 138.9 69.4 138.9 69.4 138.9 69.4 7.64E-06 1.91E-04 11:55 11:58 156.0 78.0 156.0 78.0 156.0 78.0 8.80E-06 2.20E-04 12:00 12:03 710.1 355.1 710.1 355.1 710.1 355.1 4.03E-05 1.01E-03 12:05 12:08 736.5 368.3 736.5 368.3 736.5 368.3 4.26E-05 1.06E-03 12:10 12:13 791.6 395.8 791.6 395.8 791.6 395.8 4.71E-05 1.18E-03 12:15 12:18 832.4 416.2 832.4 416.2 832.4 416.2 5.10E-05 1.28E-03 12:20 12:23 852.2 426.1 852.2 426.1 852.2 426.1 5.31E-05 1.33E-03 12:25 12:28 811.7 405.9 811.7 405.9 811.7 405.9 4.90E-05 1.23E-03 12:30 12:33 766.4 383.2 766.4 383.2 766.4 383.2 4.49E-05 1.12E-03 12:35 12:38 20.3 10.1 45.2 41.1 88.9 44.4 1.28E-06 3.21E-05 12:40 12:43 15.2 7.6 45.2 41.1 88.9 44.4 9.76E-07 2.44E-05 12:45 12:48 10.1 5.1 45.2 41.1 88.9 44.4 6.60E-07 1.65E-05 12:50 12:53 5.1 2.5 45.2 41.1 88.9 44.4 3.35E-07 8.37E-06 12:55 12:58 2.0 1.0 45.2 41.1 88.9 44.4 1.36E-07 3.39E-06 13:00 13:03 0.0 0.0 45.2 41.1 88.9 44.4 <9E-10 <1E-7 13:05 13:08 0.0 0.0 45.2 41.1 88.9 44.4 <9E-10 <1E-7 13:10 13:13 0.0 0.0 45.2 41.1 88.9 44.4 <9E-10 <1E-7 13:15 13:18 0.0 0.0 45.2 41.1 88.9 44.4 <9E-10 <1E-7 13:20 13:23 0.0 0.0 45.2 41.1 88.9 44.4 <9E-10 <1E-7 13:25 13:28 0.0 0.0 45.2 41.1 88.9 44.4 <9E-10 <1E-7 13:30 13:33 0.0 0.0 45.2 41.1 88.9 44.4 <9E-10 <1E-7 13:35 13:38 0.0 0.0 45.2 41.1 88.9 44.4 <9E-10 <1E-7 71

Unclassified Radiological Emergency Preparedness Program (REP)

After Action Report/Improvement Plan Grand Gulf Nuclear Station STATE OF LOUISIANA GRAND GULF NUCLEAR PLANT November 1, 2011 0.7 MILE TIMES DOSE RATE DATA AIR SAMPLE DATA TIME CHEST TIME OF OF CHEST LEVEL WAIST ANKLE ANKLE PART IODINE RELEASE FIELD LEVEL BWC BWO WAIST BWC BWO BWC ACTIVITY ACTIVITY DATA DATA BWO MR/HR MR/HR MR/HR MR/HR (3) MR/HR MR/HR (uCi/cc) (µCi/cc) 09:35 09:38 0.0 0.0 0.0 0.0 0.0 0.0 <9E-10 <1E-7 09:40 09:43 0.0 0.0 0.0 0.0 0.0 0.0 <9E-10 <1E-7 09:45 09:48 0.0 0.0 0.0 0.0 0.0 0.0 <9E-10 <1E-7 09:50 09:53 0.0 0.0 0.0 0.0 0.0 0.0 <9E-10 <1E-7 09:55 09:58 0.0 0.0 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:00 10:03 0.0 0.0 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:05 10:08 0.0 0.0 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:10 10:13 0.0 0.0 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:15 10:18 0.0 0.0 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:20 10:23 0.0 0.0 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:25 10:28 0.0 0.0 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:30 10:33 0.0 0.0 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:35 10:38 0.0 0.0 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:40 10:43 0.0 0.0 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:45 10:48 0.0 0.0 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:50 10:53 0.0 0.0 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:55 10:58 0.0 0.0 0.0 0.0 0.0 0.0 <9E-10 <1E-7 11:00 11:03 0.0 0.0 0.0 0.0 0.0 0.0 <9E-10 <1E-7 11:05 11:08 0.0 0.0 0.0 0.0 0.0 0.0 <9E-10 <1E-7 11:10 11:13 0.0 0.0 0.0 0.0 0.0 0.0 <9E-10 <1E-7 11:15 11:18 0.0 0.0 0.0 0.0 0.0 0.0 <9E-10 <1E-7 11:20 11:23 0.0 0.0 0.0 0.0 0.0 0.0 <9E-10 <1E-7 11:25 11:28 0.0 0.0 0.0 0.0 0.0 0.0 <9E-10 <1E-7 11:30 11:33 10.4 5.2 10.4 5.2 10.4 5.2 4.73E-07 1.18E-05 11:35 11:38 22.6 11.3 22.6 11.3 22.6 11.3 1.05E-06 2.63E-05 11:40 11:43 47.1 23.6 47.1 23.6 47.1 23.6 2.25E-06 5.62E-05 11:45 11:48 79.2 39.6 79.2 39.6 79.2 39.6 3.86E-06 9.65E-05 11:50 11:53 107.4 53.7 107.4 53.7 107.4 53.7 5.35E-06 1.34E-04 11:55 11:58 120.7 60.3 120.7 60.3 120.7 60.3 6.16E-06 1.54E-04 12:00 12:03 541.8 270.9 541.8 270.9 541.8 270.9 3.08E-05 7.70E-04 12:05 12:08 561.9 281.0 561.9 281.0 561.9 281.0 3.26E-05 8.14E-04 12:10 12:13 604.0 302.0 604.0 302.0 604.0 302.0 3.60E-05 9.00E-04 12:15 12:18 635.1 317.5 635.1 317.5 635.1 317.5 3.90E-05 9.76E-04 12:20 12:23 650.1 325.0 650.1 325.0 650.1 325.0 4.06E-05 1.01E-03 12:25 12:28 619.4 309.7 619.4 309.7 619.4 309.7 3.75E-05 9.38E-04 12:30 12:33 584.7 292.4 584.7 292.4 584.7 292.4 3.43E-05 8.58E-04 12:35 12:38 15.5 7.7 34.2 31.1 70.4 35.2 9.81E-07 2.45E-05 12:40 12:43 11.6 5.8 34.2 31.1 70.4 35.2 7.46E-07 1.87E-05 12:45 12:48 7.7 3.9 34.2 31.1 70.4 35.2 5.05E-07 1.26E-05 12:50 12:53 3.9 1.9 34.2 31.1 70.4 35.2 2.56E-07 6.40E-06 12:55 12:58 1.5 0.8 34.2 31.1 70.4 35.2 1.04E-07 2.60E-06 13:00 13:03 0.0 0.0 34.2 31.1 70.4 35.2 <9E-10 <1E-7 13:05 13:08 0.0 0.0 34.2 31.1 70.4 35.2 <9E-10 <1E-7 13:10 13:13 0.0 0.0 34.2 31.1 70.4 35.2 <9E-10 <1E-7 13:15 13:18 0.0 0.0 34.2 31.1 70.4 35.2 <9E-10 <1E-7 13:20 13:23 0.0 0.0 34.2 31.1 70.4 35.2 <9E-10 <1E-7 13:25 13:28 0.0 0.0 34.2 31.1 70.4 35.2 <9E-10 <1E-7 13:30 13:33 0.0 0.0 34.2 31.1 70.4 35.2 <9E-10 <1E-7 13:35 13:38 0.0 0.0 34.2 31.1 70.4 35.2 <9E-10 <1E-7 72

Unclassified Radiological Emergency Preparedness Program (REP)

After Action Report/Improvement Plan Grand Gulf Nuclear Station STATE OF LOUISIANA GRAND GULF NUCLEAR PLANT November 1, 2011 0.8 MILE TIMES DOSE RATE DATA AIR SAMPLE DATA TIME CHEST TIME OF OF CHEST LEVEL WAIST PART IODINE RELEASE FIELD LEVEL BWC BWO WAIST BWC ANKLE ANKLE ACTIVITY ACTIVITY DATA DATA BWO MR/HR MR/HR MR/HR MR/HR (3) BWO MR/HR BWC MR/HR (uCi/cc) (µCi/cc) 09:35 09:39 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 09:40 09:44 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 09:45 09:49 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 09:50 09:54 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 09:55 09:59 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:00 10:04 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:05 10:09 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:10 10:14 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:15 10:19 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:20 10:24 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:25 10:29 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:30 10:34 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:35 10:39 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:40 10:44 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:45 10:49 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:50 10:54 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:55 10:59 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 11:00 11:04 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 11:05 11:09 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 11:10 11:14 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 11:15 11:19 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 11:20 11:24 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 11:25 11:29 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 11:30 11:34 7.7 3.87 7.7 3.9 7.7 3.9 3.99E-07 9.97E-06 11:35 11:39 16.9 8.44 16.9 8.4 16.9 8.4 8.87E-07 2.22E-05 11:40 11:44 35.2 17.60 35.2 17.6 35.2 17.6 1.90E-06 4.74E-05 11:45 11:49 59.2 29.58 59.2 29.6 59.2 29.6 3.26E-06 8.14E-05 11:50 11:54 80.3 40.14 80.3 40.1 80.3 40.1 4.52E-06 1.13E-04 11:55 11:59 90.2 45.08 90.2 45.1 90.2 45.1 5.20E-06 1.30E-04 12:00 12:04 426.5 213.25 426.5 213.2 426.5 213.2 2.45E-05 6.12E-04 12:05 12:09 442.3 221.16 442.3 221.2 442.3 221.2 2.59E-05 6.47E-04 12:10 12:14 475.4 237.71 475.4 237.7 475.4 237.7 2.86E-05 7.16E-04 12:15 12:19 499.9 249.96 499.9 250.0 499.9 250.0 3.10E-05 7.76E-04 12:20 12:24 511.6 255.81 511.6 255.8 511.6 255.8 3.23E-05 8.07E-04 12:25 12:29 487.6 243.78 487.6 243.8 487.6 243.8 2.98E-05 7.46E-04 12:30 12:34 460.3 230.13 460.3 230.1 460.3 230.1 2.73E-05 6.82E-04 12:35 12:39 12.2 6.08 26.8 24.3 57.9 28.9 7.80E-07 1.95E-05 12:40 12:44 9.1 4.57 26.8 24.3 57.9 28.9 5.93E-07 1.48E-05 12:45 12:49 6.1 3.03 26.8 24.3 57.9 28.9 4.01E-07 1.00E-05 12:50 12:54 3.0 1.52 26.8 24.3 57.9 28.9 2.03E-07 5.09E-06 12:55 12:59 1.2 0.61 26.8 24.3 57.9 28.9 8.25E-08 2.06E-06 13:00 13:04 0.0 0.00 26.8 24.3 57.9 28.9 <9E-10 <1E-7 13:05 13:09 0.0 0.00 26.8 24.3 57.9 28.9 <9E-10 <1E-7 13:10 13:14 0.0 0.00 26.8 24.3 57.9 28.9 <9E-10 <1E-7 13:15 13:19 0.0 0.00 26.8 24.3 57.9 28.9 <9E-10 <1E-7 13:20 13:24 0.0 0.00 26.8 24.3 57.9 28.9 <9E-10 <1E-7 13:25 13:29 0.0 0.00 26.8 24.3 57.9 28.9 <9E-10 <1E-7 13:30 13:34 0.0 0.00 26.8 24.3 57.9 28.9 <9E-10 <1E-7 13:35 13:39 0.0 0.00 26.8 24.3 57.9 28.9 <9E-10 <1E-7 73

Unclassified Radiological Emergency Preparedness Program (REP)

After Action Report/Improvement Plan Grand Gulf Nuclear Station STATE OF LOUISIANA GRAND GULF NUCLEAR PLANT November 1, 2011 0.9 MILE TIMES DOSE RATE DATA AIR SAMPLE DATA TIME CHEST TIME OF OF CHEST LEVEL WAIST ANKLE ANKLE PART IODINE RELEASE FIELD LEVEL BWC BWO WAIST BWC BWO BWC ACTIVITY ACTIVITY DATA DATA BWO MR/HR MR/HR MR/HR MR/HR (3) MR/HR MR/HR (uCi/cc) (µCi/cc) 09:35 09:39 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 09:40 09:44 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 09:45 09:49 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 09:50 09:54 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 09:55 09:59 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:00 10:04 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:05 10:09 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:10 10:14 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:15 10:19 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:20 10:24 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:25 10:29 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:30 10:34 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:35 10:39 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:40 10:44 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:45 10:49 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:50 10:54 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:55 10:59 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 11:00 11:04 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 11:05 11:09 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 11:10 11:14 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 11:15 11:19 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 11:20 11:24 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 11:25 11:29 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 11:30 11:34 6.6 3.30 6.6 3.3 6.6 3.3 3.07E-07 7.67E-06 11:35 11:39 14.4 7.20 14.4 7.2 14.4 7.2 6.82E-07 1.71E-05 11:40 11:44 30.0 15.01 30.0 15.0 30.0 15.0 1.46E-06 3.65E-05 11:45 11:49 50.5 25.23 50.5 25.2 50.5 25.2 2.51E-06 6.27E-05 11:50 11:54 68.5 34.23 68.5 34.2 68.5 34.2 3.47E-06 8.69E-05 11:55 11:59 76.9 38.45 76.9 38.4 76.9 38.4 4.00E-06 1.00E-04 12:00 12:04 347.0 173.48 347.0 173.5 347.0 173.5 2.00E-05 4.99E-04 12:05 12:09 359.8 179.91 359.8 179.9 359.8 179.9 2.11E-05 5.28E-04 12:10 12:14 386.8 193.39 386.8 193.4 386.8 193.4 2.34E-05 5.84E-04 12:15 12:19 406.7 203.36 406.7 203.4 406.7 203.4 2.53E-05 6.33E-04 12:20 12:24 416.1 208.06 416.1 208.1 416.1 208.1 2.63E-05 6.58E-04 12:25 12:29 396.7 198.34 396.7 198.3 396.7 198.3 2.43E-05 6.08E-04 12:30 12:34 374.4 187.22 374.4 187.2 374.4 187.2 2.23E-05 5.56E-04 12:35 12:39 9.9 4.95 21.9 19.9 49.8 24.9 6.36E-07 1.59E-05 12:40 12:44 7.4 3.71 21.9 19.9 49.8 24.9 4.84E-07 1.21E-05 12:45 12:49 4.9 2.47 21.9 19.9 49.8 24.9 3.27E-07 8.18E-06 12:50 12:54 2.5 1.24 21.9 19.9 49.8 24.9 1.66E-07 4.15E-06 12:55 12:59 1.0 0.50 21.9 19.9 49.8 24.9 6.73E-08 1.68E-06 13:00 13:04 0.0 0.00 21.9 19.9 49.8 24.9 <9E-10 <1E-7 13:05 13:09 0.0 0.00 21.9 19.9 49.8 24.9 <9E-10 <1E-7 13:10 13:14 0.0 0.00 21.9 19.9 49.8 24.9 <9E-10 <1E-7 13:15 13:19 0.0 0.00 21.9 19.9 49.8 24.9 <9E-10 <1E-7 13:20 13:24 0.0 0.00 21.9 19.9 49.8 24.9 <9E-10 <1E-7 13:25 13:29 0.0 0.00 21.9 19.9 49.8 24.9 <9E-10 <1E-7 13:30 13:34 0.0 0.00 21.9 19.9 49.8 24.9 <9E-10 <1E-7 13:35 13:39 0.0 0.00 21.9 19.9 49.8 24.9 <9E-10 <1E-7 74

Unclassified Radiological Emergency Preparedness Program (REP)

After Action Report/Improvement Plan Grand Gulf Nuclear Station STATE OF LOUISIANA GRAND GULF NUCLEAR PLANT November 1, 2011 1.0 MILE TIMES DOSE RATE DATA AIR SAMPLE DATA TIME CHEST TIME OF OF CHEST LEVEL WAIST ANKLE ANKLE PART IODINE RELEASE FIELD LEVEL BWC BWO WAIST BWC BWO BWC ACTIVITY ACTIVITY DATA DATA BWO MR/HR MR/HR MR/HR MR/HR (3) MR/HR MR/HR (uCi/cc) (µCi/cc) 09:35 09:40 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 09:40 09:45 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 09:45 09:50 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 09:50 09:55 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 09:55 10:00 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:00 10:05 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:05 10:10 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:10 10:15 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:15 10:20 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:20 10:25 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:25 10:30 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:30 10:35 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:35 10:40 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:40 10:45 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:45 10:50 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:50 10:55 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:55 11:00 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 11:00 11:05 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 11:05 11:10 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 11:10 11:15 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 11:15 11:20 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 11:20 11:25 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 11:25 11:30 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 11:30 11:35 5.4 2.70 5.4 2.7 5.4 2.7 2.61E-07 6.52E-06 11:35 11:40 11.8 5.88 11.8 5.9 11.8 5.9 5.80E-07 1.45E-05 11:40 11:45 24.5 12.25 24.5 12.2 24.5 12.2 1.24E-06 3.10E-05 11:45 11:50 41.2 20.59 41.2 20.6 41.2 20.6 2.13E-06 5.33E-05 11:50 11:55 55.9 27.94 55.9 27.9 55.9 27.9 2.95E-06 7.39E-05 11:55 12:00 62.8 31.39 62.8 31.4 62.8 31.4 3.40E-06 8.50E-05 12:00 12:05 288.6 144.32 288.6 144.3 288.6 144.3 1.67E-05 4.19E-04 12:05 12:10 299.3 149.67 299.3 149.7 299.3 149.7 1.77E-05 4.43E-04 12:10 12:15 321.8 160.88 321.8 160.9 321.8 160.9 1.96E-05 4.89E-04 12:15 12:20 338.4 169.18 338.4 169.2 338.4 169.2 2.12E-05 5.31E-04 12:20 12:25 346.1 173.05 346.1 173.1 346.1 173.1 2.21E-05 5.52E-04 12:25 12:30 330.0 165.01 330.0 165.0 330.0 165.0 2.04E-05 5.10E-04 12:30 12:35 311.5 155.75 311.5 155.8 311.5 155.8 1.87E-05 4.66E-04 12:35 12:40 8.2 4.12 18.2 16.5 43.4 21.7 5.33E-07 1.33E-05 12:40 12:45 6.2 3.09 18.2 16.5 43.4 21.7 4.06E-07 1.01E-05 12:45 12:50 4.1 2.06 18.2 16.5 43.4 21.7 2.74E-07 6.86E-06 12:50 12:55 2.1 1.03 18.2 16.5 43.4 21.7 1.39E-07 3.48E-06 12:55 13:00 0.8 0.41 18.2 16.5 43.4 21.7 5.64E-08 1.41E-06 13:00 13:05 0.0 0.00 18.2 16.5 43.4 21.7 <9E-10 <1E-7 13:05 13:10 0.0 0.00 18.2 16.5 43.4 21.7 <9E-10 <1E-7 13:10 13:15 0.0 0.00 18.2 16.5 43.4 21.7 <9E-10 <1E-7 13:15 13:20 0.0 0.00 18.2 16.5 43.4 21.7 <9E-10 <1E-7 13:20 13:25 0.0 0.00 18.2 16.5 43.4 21.7 <9E-10 <1E-7 13:25 13:30 0.0 0.00 18.2 16.5 43.4 21.7 <9E-10 <1E-7 13:30 13:35 0.0 0.00 18.2 16.5 43.4 21.7 <9E-10 <1E-7 13:35 13:40 0.0 0.00 18.2 16.5 43.4 21.7 <9E-10 <1E-7 75

Unclassified Radiological Emergency Preparedness Program (REP)

After Action Report/Improvement Plan Grand Gulf Nuclear Station STATE OF LOUISIANA GRAND GULF NUCLEAR PLANT November 1, 2011 1.5 MILE TIMES DOSE RATE DATA AIR SAMPLE DATA TIME CHEST TIME OF OF CHEST LEVEL WAIST ANKLE ANKLE PART IODINE RELEASE FIELD LEVEL BWC BWO WAIST BWC BWO BWC ACTIVITY ACTIVITY DATA DATA BWO MR/HR MR/HR MR/HR MR/HR (3) MR/HR MR/HR (uCi/cc) (µCi/cc) 09:35 09:42 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 09:40 09:47 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 09:45 09:52 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 09:50 09:57 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 09:55 10:02 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:00 10:07 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:05 10:12 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:10 10:17 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:15 10:22 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:20 10:27 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:25 10:32 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:30 10:37 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:35 10:42 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:40 10:47 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:45 10:52 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:50 10:57 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:55 11:02 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 11:00 11:07 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 11:05 11:12 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 11:10 11:17 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 11:15 11:22 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 11:20 11:27 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 11:25 11:32 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 11:30 11:37 2.5 1.25 2.5 1.3 2.5 1.3 1.39E-07 3.48E-06 11:35 11:42 5.5 2.73 5.5 2.7 5.5 2.7 3.09E-07 7.72E-06 11:40 11:47 11.4 5.69 11.4 5.7 11.4 5.7 6.61E-07 1.65E-05 11:45 11:52 19.3 9.65 19.3 9.7 19.3 9.7 1.14E-06 2.84E-05 11:50 11:57 26.2 13.10 26.2 13.1 26.2 13.1 1.57E-06 3.93E-05 11:55 12:02 29.5 14.73 29.5 14.7 29.5 14.7 1.81E-06 4.53E-05 12:00 12:07 141.5 70.76 141.5 70.8 141.5 70.8 8.25E-06 2.06E-04 12:05 12:12 146.7 73.37 146.7 73.4 146.7 73.4 8.72E-06 2.18E-04 12:10 12:17 157.8 78.88 157.8 78.9 157.8 78.9 9.64E-06 2.41E-04 12:15 12:22 165.9 82.97 165.9 83.0 165.9 83.0 1.05E-05 2.61E-04 12:20 12:27 169.5 84.73 169.5 84.7 169.5 84.7 1.09E-05 2.72E-04 12:25 12:32 161.9 80.94 161.9 80.9 161.9 80.9 1.00E-05 2.51E-04 12:30 12:37 152.7 76.37 152.7 76.4 152.7 76.4 9.19E-06 2.30E-04 12:35 12:42 4.0 2.02 10.5 8.8 29.1 14.5 2.63E-07 6.57E-06 12:40 12:47 3.0 1.52 10.5 8.8 29.1 14.5 2.00E-07 5.00E-06 12:45 12:52 2.0 1.01 10.5 8.8 29.1 14.5 1.35E-07 3.38E-06 12:50 12:57 1.0 0.51 10.5 8.8 29.1 14.5 6.85E-08 1.71E-06 12:55 13:02 0.4 0.20 10.5 8.8 29.1 14.5 2.78E-08 6.95E-07 13:00 13:07 0.0 0.00 10.5 8.8 29.1 14.5 <9E-10 <1E-7 13:05 13:12 0.0 0.00 10.5 8.8 29.1 14.5 <9E-10 <1E-7 13:10 13:17 0.0 0.00 10.5 8.8 29.1 14.5 <9E-10 <1E-7 13:15 13:22 0.0 0.00 10.5 8.8 29.1 14.5 <9E-10 <1E-7 13:20 13:27 0.0 0.00 10.5 8.8 29.1 14.5 <9E-10 <1E-7 13:25 13:32 0.0 0.00 10.5 8.8 29.1 14.5 <9E-10 <1E-7 76

Unclassified Radiological Emergency Preparedness Program (REP)

After Action Report/Improvement Plan Grand Gulf Nuclear Station STATE OF LOUISIANA GRAND GULF NUCLEAR PLANT November 1, 2011 2.0 MILE TIMES DOSE RATE DATA AIR SAMPLE DATA TIME CHEST TIME OF OF CHEST LEVEL WAIST ANKLE ANKLE PART IODINE RELEASE FIELD LEVEL BWC BWO WAIST BWC BWO BWC ACTIVITY ACTIVITY DATA DATA BWO MR/HR MR/HR MR/HR MR/HR (3) MR/HR MR/HR (uCi/cc) (µCi/cc) 09:35 09:45 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 09:40 09:50 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 09:45 09:55 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 09:50 10:00 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 09:55 10:05 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:00 10:10 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:05 10:15 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:10 10:20 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:15 10:25 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:20 10:30 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:25 10:35 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:30 10:40 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:35 10:45 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:40 10:50 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:45 10:55 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:50 11:00 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:55 11:05 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 11:00 11:10 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 11:05 11:15 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 11:10 11:20 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 11:15 11:25 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 11:20 11:30 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 11:25 11:35 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 11:30 11:40 1.5 0.75 1.5 0.8 1.5 0.8 7.69E-08 1.92E-06 11:35 11:45 3.3 1.64 3.3 1.6 3.3 1.6 1.71E-07 4.27E-06 11:40 11:50 6.9 3.43 6.9 3.4 6.9 3.4 3.66E-07 9.14E-06 11:45 11:55 11.5 5.76 11.5 5.8 11.5 5.8 6.28E-07 1.57E-05 11:50 12:00 15.6 7.82 15.6 7.8 15.6 7.8 8.71E-07 2.18E-05 11:55 12:05 17.6 8.80 17.6 8.8 17.6 8.8 1.00E-06 2.51E-05 12:00 12:10 85.9 42.93 85.9 42.9 85.9 42.9 4.94E-06 1.24E-04 12:05 12:15 89.0 44.50 89.0 44.5 89.0 44.5 5.23E-06 1.31E-04 12:10 12:20 95.7 47.85 95.7 47.9 95.7 47.9 5.78E-06 1.44E-04 12:15 12:25 100.7 50.34 100.7 50.3 100.7 50.3 6.26E-06 1.57E-04 12:20 12:30 102.6 51.31 102.6 51.3 102.6 51.3 6.51E-06 1.63E-04 12:25 12:35 98.2 49.12 98.2 49.1 98.2 49.1 6.02E-06 1.50E-04 12:30 12:40 92.7 46.33 92.7 46.3 92.7 46.3 5.50E-06 1.38E-04 12:35 12:45 2.5 1.23 6.6 6.0 23.9 12.0 1.57E-07 3.93E-06 12:40 12:50 1.8 0.92 6.6 6.0 23.9 12.0 1.20E-07 2.99E-06 12:45 12:55 1.2 0.61 6.6 6.0 23.9 12.0 8.10E-08 2.02E-06 12:50 13:00 0.6 0.31 6.6 6.0 23.9 12.0 4.10E-08 1.03E-06 12:55 13:05 0.2 0.12 6.6 6.0 23.9 12.0 1.66E-08 4.16E-07 13:00 13:10 0.0 0.00 6.6 6.0 23.9 12.0 <9E-10 <1E-7 13:05 13:15 0.0 0.00 6.6 6.0 23.9 12.0 <9E-10 <1E-7 13:10 13:20 0.0 0.00 6.6 6.0 23.9 12.0 <9E-10 <1E-7 13:15 13:25 0.0 0.00 6.6 6.0 23.9 12.0 <9E-10 <1E-7 13:20 13:30 0.0 0.00 6.6 6.0 23.9 12.0 <9E-10 <1E-7 13:25 13:35 0.0 0.00 6.6 6.0 23.9 12.0 <9E-10 <1E-7 77

Unclassified Radiological Emergency Preparedness Program (REP)

After Action Report/Improvement Plan Grand Gulf Nuclear Station STATE OF LOUISIANA GRAND GULF NUCLEAR PLANT November 1, 2011 2.5 MILE TIMES DOSE RATE DATA AIR SAMPLE DATA TIME CHEST TIME OF OF CHEST LEVEL WAIST ANKLE ANKLE PART IODINE RELEASE FIELD LEVEL BWC BWO WAIST BWC BWO BWC ACTIVITY ACTIVITY DATA DATA BWO MR/HR MR/HR MR/HR MR/HR (3) MR/HR MR/HR (uCi/cc) (µCi/cc) 09:35 09:47 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 09:40 09:52 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 09:45 09:57 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 09:50 10:02 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 09:55 10:07 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:00 10:12 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:05 10:17 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:10 10:22 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:15 10:27 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:20 10:32 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:25 10:37 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:30 10:42 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:35 10:47 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:40 10:52 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:45 10:57 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:50 11:02 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:55 11:07 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 11:00 11:12 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 11:05 11:17 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 11:10 11:22 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 11:15 11:27 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 11:20 11:32 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 11:25 11:37 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 11:30 11:42 1.0 0.51 1.0 0.5 1.0 0.5 5.55E-08 1.39E-06 11:35 11:47 2.2 1.10 2.2 1.1 2.2 1.1 1.23E-07 3.08E-06 11:40 11:52 4.6 2.30 4.6 2.3 4.6 2.3 2.64E-07 6.60E-06 11:45 11:57 7.7 3.87 7.7 3.9 7.7 3.9 4.53E-07 1.13E-05 11:50 12:02 10.5 5.25 10.5 5.3 10.5 5.3 6.29E-07 1.57E-05 11:55 12:07 11.8 5.91 11.8 5.9 11.8 5.9 7.24E-07 1.81E-05 12:00 12:12 56.7 28.34 56.7 28.3 56.7 28.3 3.23E-06 8.07E-05 12:05 12:17 58.8 29.38 58.8 29.4 58.8 29.4 3.41E-06 8.54E-05 12:10 12:22 63.2 31.61 63.2 31.6 63.2 31.6 3.77E-06 9.44E-05 12:15 12:27 66.5 33.24 66.5 33.2 66.5 33.2 4.09E-06 1.02E-04 12:20 12:32 67.8 33.91 67.8 33.9 67.8 33.9 4.25E-06 1.06E-04 12:25 12:37 64.9 32.45 64.9 32.4 64.9 32.4 3.93E-06 9.83E-05 12:30 12:42 61.2 30.59 61.2 30.6 61.2 30.6 3.60E-06 8.99E-05 12:35 12:47 1.6 0.81 4.3 3.9 15.6 7.8 1.03E-07 2.57E-06 12:40 12:52 1.2 0.61 4.3 3.9 15.6 7.8 7.82E-08 1.95E-06 12:45 12:57 0.8 0.41 4.3 3.9 15.6 7.8 5.29E-08 1.32E-06 12:50 13:02 0.4 0.20 4.3 3.9 15.6 7.8 2.68E-08 6.70E-07 12:55 13:07 0.2 0.08 4.3 3.9 15.6 7.8 1.12E-08 2.80E-07 13:00 13:12 0.0 0.00 4.3 3.9 15.6 7.8 <9E-10 <1E-7 13:05 13:17 0.0 0.00 4.3 3.9 15.6 7.8 <9E-10 <1E-7 13:10 13:22 0.0 0.00 4.3 3.9 15.6 7.8 <9E-10 <1E-7 13:15 13:27 0.0 0.00 4.3 3.9 15.6 7.8 <9E-10 <1E-7 13:20 13:32 0.0 0.00 4.3 3.9 15.6 7.8 <9E-10 <1E-7 13:25 13:37 0.0 0.00 4.3 3.9 15.6 7.8 <9E-10 <1E-7 78

Unclassified Radiological Emergency Preparedness Program (REP)

After Action Report/Improvement Plan Grand Gulf Nuclear Station STATE OF LOUISIANA GRAND GULF NUCLEAR PLANT November 1, 2011 3.0 MILE TIMES DOSE RATE DATA AIR SAMPLE DATA TIME CHEST TIME OF OF CHEST LEVEL WAIST ANKLE ANKLE PART IODINE RELEASE FIELD LEVEL BWC BWO WAIST BWC BWO BWC ACTIVITY ACTIVITY DATA DATA BWO MR/HR MR/HR MR/HR MR/HR (3) MR/HR MR/HR (uCi/cc) (µCi/cc) 09:35 09:50 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 09:40 09:55 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 09:45 10:00 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 09:50 10:05 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 09:55 10:10 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:00 10:15 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:05 10:20 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:10 10:25 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:15 10:30 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:20 10:35 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:25 10:40 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:30 10:45 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:35 10:50 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:40 10:55 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:45 11:00 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:50 11:05 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:55 11:10 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 11:00 11:15 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 11:05 11:20 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 11:10 11:25 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 11:15 11:30 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 11:20 11:35 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 11:25 11:40 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 11:30 11:45 0.7 0.37 0.7 0.4 0.7 0.4 3.68E-08 9.20E-07 11:35 11:50 1.6 0.81 1.6 0.8 1.6 0.8 8.18E-08 2.05E-06 11:40 11:55 3.4 1.68 3.4 1.7 3.4 1.7 1.75E-07 4.38E-06 11:45 12:00 5.7 2.83 5.7 2.8 5.7 2.8 3.01E-07 7.52E-06 11:50 12:05 7.7 3.84 7.7 3.8 7.7 3.8 4.17E-07 1.04E-05 11:55 12:10 8.7 4.33 8.7 4.3 8.7 4.3 4.80E-07 1.20E-05 12:00 12:15 40.7 20.35 40.7 20.3 40.7 20.3 2.39E-06 5.98E-05 12:05 12:20 42.2 21.10 42.2 21.1 42.2 21.1 2.53E-06 6.32E-05 12:10 12:25 45.4 22.71 45.4 22.7 45.4 22.7 2.80E-06 6.99E-05 12:15 12:30 47.8 23.88 47.8 23.9 47.8 23.9 3.03E-06 7.58E-05 12:20 12:35 48.8 24.39 48.8 24.4 48.8 24.4 3.15E-06 7.88E-05 12:25 12:40 46.6 23.32 46.6 23.3 46.6 23.3 2.91E-06 7.28E-05 12:30 12:45 43.9 21.97 43.9 22.0 43.9 22.0 2.66E-06 6.66E-05 12:35 12:50 1.2 0.58 3.1 2.8 11.2 5.6 7.61E-08 1.90E-06 12:40 12:55 0.9 0.44 3.1 2.8 11.2 5.6 5.79E-08 1.45E-06 12:45 13:00 0.6 0.29 3.1 2.8 11.2 5.6 3.92E-08 9.80E-07 12:50 13:05 0.3 0.15 3.1 2.8 11.2 5.6 1.98E-08 4.96E-07 12:55 13:10 0.1 0.06 3.1 2.8 11.2 5.6 8.55E-09 2.14E-07 13:00 13:15 0.0 0.00 3.1 2.8 11.2 5.6 <9E-10 <1E-7 13:05 13:20 0.0 0.00 3.1 2.8 11.2 5.6 <9E-10 <1E-7 13:10 13:25 0.0 0.00 3.1 2.8 11.2 5.6 <9E-10 <1E-7 13:15 13:30 0.0 0.00 3.1 2.8 11.2 5.6 <9E-10 <1E-7 13:20 13:35 0.0 0.00 3.1 2.8 11.2 5.6 <9E-10 <1E-7 13:25 13:40 0.0 0.00 3.1 2.8 11.2 5.6 <9E-10 <1E-7 79

Unclassified Radiological Emergency Preparedness Program (REP)

After Action Report/Improvement Plan Grand Gulf Nuclear Station STATE OF LOUISIANA GRAND GULF NUCLEAR PLANT November 1, 2011 3.5 MILE TIMES DOSE RATE DATA AIR SAMPLE DATA TIME CHEST TIME OF OF CHEST LEVEL WAIST PART IODINE RELEASE FIELD LEVEL BWC BWO WAIST BWC ANKLE ANKLE ACTIVITY ACTIVITY DATA DATA BWO MR/HR MR/HR MR/HR MR/HR (3) BWO MR/HR BWC MR/HR (uCi/cc) (µCi/cc) 09:35 09:52 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 09:40 09:57 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 09:45 10:02 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 09:50 10:07 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 09:55 10:12 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:00 10:17 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:05 10:22 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:10 10:27 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:15 10:32 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:20 10:37 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:25 10:42 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:30 10:47 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:35 10:52 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:40 10:57 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:45 11:02 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:50 11:07 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:55 11:12 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 11:00 11:17 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 11:05 11:22 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 11:10 11:27 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 11:15 11:32 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 11:20 11:37 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 11:25 11:42 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 11:30 11:47 0.6 0.28 0.6 0.3 0.6 0.3 3.00E-08 7.49E-07 11:35 11:52 1.2 0.62 1.2 0.6 1.2 0.6 6.67E-08 1.67E-06 11:40 11:57 2.6 1.29 2.6 1.3 2.6 1.3 1.43E-07 3.57E-06 11:45 12:02 4.4 2.18 4.4 2.2 4.4 2.2 2.45E-07 6.13E-06 11:50 12:07 5.9 2.96 5.9 3.0 5.9 3.0 3.40E-07 8.49E-06 11:55 12:12 6.7 3.33 6.7 3.3 6.7 3.3 3.91E-07 9.78E-06 12:00 12:17 30.6 15.31 30.6 15.3 30.6 15.3 1.79E-06 4.49E-05 12:05 12:22 31.8 15.88 31.8 15.9 31.8 15.9 1.90E-06 4.74E-05 12:10 12:27 34.2 17.10 34.2 17.1 34.2 17.1 2.10E-06 5.25E-05 12:15 12:32 36.0 17.98 36.0 18.0 36.0 18.0 2.27E-06 5.69E-05 12:20 12:37 36.8 18.38 36.8 18.4 36.8 18.4 2.37E-06 5.91E-05 12:25 12:42 35.1 17.56 35.1 17.6 35.1 17.6 2.19E-06 5.46E-05 12:30 12:47 33.1 16.54 33.1 16.5 33.1 16.5 2.00E-06 5.00E-05 12:35 12:52 0.9 0.44 2.3 2.1 8.5 4.3 5.71E-08 1.43E-06 12:40 12:57 0.7 0.33 2.3 2.1 8.5 4.3 4.34E-08 1.09E-06 12:45 13:02 0.4 0.22 2.3 2.1 8.5 4.3 2.94E-08 7.35E-07 12:50 13:07 0.2 0.11 2.3 2.1 8.5 4.3 1.49E-08 3.72E-07 12:55 13:12 0.1 0.04 2.3 2.1 8.5 4.3 6.65E-09 1.66E-07 13:00 13:17 0.0 0.00 2.3 2.1 8.5 4.3 <9E-10 <1E-7 13:05 13:22 0.0 0.00 2.3 2.1 8.5 4.3 <9E-10 <1E-7 13:10 13:27 0.0 0.00 2.3 2.1 8.5 4.3 <9E-10 <1E-7 13:15 13:32 0.0 0.00 2.3 2.1 8.5 4.3 <9E-10 <1E-7 13:20 13:37 0.0 0.00 2.3 2.1 8.5 4.3 <9E-10 <1E-7 13:25 13:42 0.0 0.00 2.3 2.1 8.5 4.3 <9E-10 <1E-7 80

Unclassified Radiological Emergency Preparedness Program (REP)

After Action Report/Improvement Plan Grand Gulf Nuclear Station STATE OF LOUISIANA GRAND GULF NUCLEAR PLANT November 1, 2011 4.0 MILE TIMES DOSE RATE DATA AIR SAMPLE DATA TIME CHEST TIME OF OF CHEST LEVEL WAIST ANKLE ANKLE PART IODINE RELEASE FIELD LEVEL BWC BWO WAIST BWC BWO BWC ACTIVITY ACTIVITY DATA DATA BWO MR/HR MR/HR MR/HR MR/HR (3) MR/HR MR/HR (uCi/cc) (µCi/cc) 09:35 09:55 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 09:40 10:00 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 09:45 10:05 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 09:50 10:10 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 09:55 10:15 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:00 10:20 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:05 10:25 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:10 10:30 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:15 10:35 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:20 10:40 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:25 10:45 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:30 10:50 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:35 10:55 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:40 11:00 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:45 11:05 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:50 11:10 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:55 11:15 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 11:00 11:20 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 11:05 11:25 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 11:10 11:30 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 11:15 11:35 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 11:20 11:40 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 11:25 11:45 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 11:30 11:50 0.5 0.23 0.5 0.2 0.5 0.2 2.40E-08 6.01E-07 11:35 11:55 1.0 0.50 1.0 0.5 1.0 0.5 5.35E-08 1.34E-06 11:40 12:00 2.1 1.04 2.1 1.0 2.1 1.0 1.14E-07 2.86E-06 11:45 12:05 3.5 1.75 3.5 1.7 3.5 1.7 1.97E-07 4.91E-06 11:50 12:10 4.7 2.37 4.7 2.4 4.7 2.4 2.73E-07 6.81E-06 11:55 12:15 5.3 2.67 5.3 2.7 5.3 2.7 3.14E-07 7.84E-06 12:00 12:20 24.0 12.01 24.0 12.0 24.0 12.0 1.44E-06 3.59E-05 12:05 12:25 24.9 12.46 24.9 12.5 24.9 12.5 1.52E-06 3.80E-05 12:10 12:30 26.8 13.42 26.8 13.4 26.8 13.4 1.68E-06 4.20E-05 12:15 12:35 28.2 14.11 28.2 14.1 28.2 14.1 1.82E-06 4.55E-05 12:20 12:40 28.9 14.44 28.9 14.4 28.9 14.4 1.89E-06 4.73E-05 12:25 12:45 27.6 13.79 27.6 13.8 27.6 13.8 1.75E-06 4.37E-05 12:30 12:50 26.0 12.98 26.0 13.0 26.0 13.0 1.60E-06 4.00E-05 12:35 12:55 0.7 0.35 1.9 1.7 6.7 3.4 4.57E-08 1.14E-06 12:40 13:00 0.5 0.26 1.9 1.7 6.7 3.4 3.47E-08 8.68E-07 12:45 13:05 0.3 0.17 1.9 1.7 6.7 3.4 2.35E-08 5.88E-07 12:50 13:10 0.2 0.09 1.9 1.7 6.7 3.4 1.19E-08 2.97E-07 12:55 13:15 0.1 0.03 1.9 1.7 6.7 3.4 5.52E-09 1.38E-07 13:00 13:20 0.0 0.00 1.9 1.7 6.7 3.4 <9E-10 <1E-7 13:05 13:25 0.0 0.00 1.9 1.7 6.7 3.4 <9E-10 <1E-7 13:10 13:30 0.0 0.00 1.9 1.7 6.7 3.4 <9E-10 <1E-7 13:15 13:35 0.0 0.00 1.9 1.7 6.7 3.4 <9E-10 <1E-7 13:20 13:40 0.0 0.00 1.9 1.7 6.7 3.4 <9E-10 <1E-7 13:25 13:45 0.0 0.00 1.9 1.7 6.7 3.4 <9E-10 <1E-7 81

Unclassified Radiological Emergency Preparedness Program (REP)

After Action Report/Improvement Plan Grand Gulf Nuclear Station STATE OF LOUISIANA GRAND GULF NUCLEAR PLANT November 1, 2011 4.5 MILE TIMES DOSE RATE DATA AIR SAMPLE DATA TIME CHEST TIME OF OF CHEST LEVEL WAIST ANKLE ANKLE PART IODINE RELEASE FIELD LEVEL BWC BWO WAIST BWC BWO BWC ACTIVITY ACTIVITY DATA DATA BWO MR/HR MR/HR MR/HR MR/HR (3) MR/HR MR/HR (uCi/cc) (µCi/cc) 09:35 09:57 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 09:40 10:02 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 09:45 10:07 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 09:50 10:12 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 09:55 10:17 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:00 10:22 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:05 10:27 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:10 10:32 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:15 10:37 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:20 10:42 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:25 10:47 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:30 10:52 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:35 10:57 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:40 11:02 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:45 11:07 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:50 11:12 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:55 11:17 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 11:00 11:22 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 11:05 11:27 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 11:10 11:32 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 11:15 11:37 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 11:20 11:42 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 11:25 11:47 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 11:30 11:52 0.4 0.19 0.4 0.2 0.4 0.2 2.26E-08 5.64E-07 11:35 11:57 0.8 0.41 0.8 0.4 0.8 0.4 5.02E-08 1.25E-06 11:40 12:02 1.7 0.87 1.7 0.9 1.7 0.9 1.07E-07 2.69E-06 11:45 12:07 2.9 1.46 2.9 1.5 2.9 1.5 1.84E-07 4.61E-06 11:50 12:12 4.0 1.98 4.0 2.0 4.0 2.0 2.56E-07 6.39E-06 11:55 12:17 4.5 2.23 4.5 2.2 4.5 2.2 2.48E-07 6.20E-06 12:00 12:22 19.6 9.79 19.6 9.8 19.6 9.8 1.16E-06 2.89E-05 12:05 12:27 20.3 10.15 20.3 10.2 20.3 10.2 1.22E-06 3.06E-05 12:10 12:32 21.9 10.95 21.9 10.9 21.9 10.9 1.35E-06 3.38E-05 12:15 12:37 23.0 11.50 23.0 11.5 23.0 11.5 1.47E-06 3.67E-05 12:20 12:42 23.6 11.79 23.6 11.8 23.6 11.8 1.53E-06 3.81E-05 12:25 12:47 22.5 11.25 22.5 11.3 22.5 11.3 1.41E-06 3.52E-05 12:30 12:52 21.2 10.58 21.2 10.6 21.2 10.6 1.29E-06 3.22E-05 12:35 12:57 0.6 0.28 1.5 1.4 5.6 2.8 3.68E-08 9.20E-07 12:40 13:02 0.4 0.21 1.5 1.4 5.6 2.8 2.80E-08 6.99E-07 12:45 13:07 0.3 0.14 1.5 1.4 5.6 2.8 1.90E-08 4.74E-07 12:50 13:12 0.1 0.07 1.5 1.4 5.6 2.8 9.58E-09 2.40E-07 12:55 13:17 0.1 0.03 1.5 1.4 5.6 2.8 4.63E-09 1.16E-07 13:00 13:22 0.0 0.00 1.5 1.4 5.6 2.8 <9E-10 <1E-7 13:05 13:27 0.0 0.00 1.5 1.4 5.6 2.8 <9E-10 <1E-7 13:10 13:32 0.0 0.00 1.5 1.4 5.6 2.8 <9E-10 <1E-7 13:15 13:37 0.0 0.00 1.5 1.4 5.6 2.8 <9E-10 <1E-7 13:20 13:42 0.0 0.00 1.5 1.4 5.6 2.8 <9E-10 <1E-7 13:25 13:47 0.0 0.00 1.5 1.4 5.6 2.8 <9E-10 <1E-7 82

Unclassified Radiological Emergency Preparedness Program (REP)

After Action Report/Improvement Plan Grand Gulf Nuclear Station STATE OF LOUISIANA GRAND GULF NUCLEAR PLANT November 1, 2011 5.0 MILE TIMES DOSE RATE DATA AIR SAMPLE DATA TIME CHEST TIME OF OF CHEST LEVEL WAIST PART IODINE RELEASE FIELD LEVEL BWC BWO WAIST BWC ANKLE ANKLE ACTIVITY ACTIVITY DATA DATA BWO MR/HR MR/HR MR/HR MR/HR (3) BWO MR/HR BWC MR/HR (uCi/cc) (µCi/cc) 09:35 10:00 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 09:40 10:05 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 09:45 10:10 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 09:50 10:15 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 09:55 10:20 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:00 10:25 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:05 10:30 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:10 10:35 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:15 10:40 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:20 10:45 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:25 10:50 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:30 10:55 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:35 11:00 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:40 11:05 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:45 11:10 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:50 11:15 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:55 11:20 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 11:00 11:25 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 11:05 11:30 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 11:10 11:35 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 11:15 11:40 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 11:20 11:45 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 11:25 11:50 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 11:30 11:55 0.3 0.16 0.3 0.2 0.3 0.2 1.75E-08 4.38E-07 11:35 12:00 0.7 0.36 0.7 0.4 0.7 0.4 3.90E-08 9.75E-07 11:40 12:05 1.5 0.74 1.5 0.7 1.5 0.7 8.34E-08 2.09E-06 11:45 12:10 2.5 1.25 2.5 1.3 2.5 1.3 1.43E-07 3.6E-06 11:50 12:15 3.4 1.70 3.4 1.7 3.4 1.7 1.99E-07 4.96E-06 11:55 12:20 3.8 1.92 3.8 1.9 3.8 1.9 2.29E-07 5.72E-06 12:00 12:25 16.4 8.19 16.4 8.2 16.4 8.2 9.58E-07 2.40E-05 12:05 12:30 17.0 8.50 17.0 8.5 17.0 8.5 1.01E-06 2.53E-05 12:10 12:35 18.3 9.17 18.3 9.2 18.3 9.2 1.12E-06 2.80E-05 12:15 12:40 19.3 9.63 19.3 9.6 19.3 9.6 1.21E-06 3.04E-05 12:20 12:45 19.8 9.89 19.8 9.9 19.8 9.9 1.26E-06 3.16E-05 12:25 12:50 18.8 9.42 18.8 9.4 18.8 9.4 1.17E-06 2.92E-05 12:30 12:55 17.7 8.86 17.7 8.9 17.7 8.9 1.07E-06 2.67E-05 12:35 13:00 0.5 0.24 1.3 1.2 4.7 2.3 3.04E-08 7.61E-07 12:40 13:05 0.4 0.18 1.3 1.2 4.7 2.3 2.31E-08 5.79E-07 12:45 13:10 0.2 0.12 1.3 1.2 4.7 2.3 1.57E-08 3.92E-07 12:50 13:15 0.1 0.06 1.3 1.2 4.7 2.3 7.92E-09 1.98E-07 12:55 13:20 0.0 0.02 1.3 1.2 4.7 2.3 <9E-10 <1E-7 13:00 13:25 0.0 0.00 1.3 1.2 4.7 2.3 <9E-10 <1E-7 13:05 13:30 0.0 0.00 1.3 1.2 4.7 2.3 <9E-10 <1E-7 13:10 13:35 0.0 0.00 1.3 1.2 4.7 2.3 <9E-10 <1E-7 13:15 13:40 0.0 0.00 1.3 1.2 4.7 2.3 <9E-10 <1E-7 13:20 13:45 0.0 0.00 1.3 1.2 4.7 2.3 <9E-10 <1E-7 13:25 13:50 0.0 0.00 1.3 1.2 4.7 2.3 <9E-10 <1E-7 83

Unclassified Radiological Emergency Preparedness Program (REP)

After Action Report/Improvement Plan Grand Gulf Nuclear Station STATE OF LOUISIANA GRAND GULF NUCLEAR PLANT November 1, 2011 5.5 MILE TIMES DOSE RATE DATA AIR SAMPLE DATA TIME CHEST TIME OF OF CHEST LEVEL WAIST ANKLE ANKLE PART IODINE RELEASE FIELD LEVEL BWC BWO WAIST BWC BWO BWC ACTIVITY ACTIVITY DATA DATA BWO MR/HR MR/HR MR/HR MR/HR (3) MR/HR MR/HR (uCi/cc) (µCi/cc) 09:35 10:02 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 09:40 10:07 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 09:45 10:12 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 09:50 10:17 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 09:55 10:22 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:00 10:27 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:05 10:32 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:10 10:37 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:15 10:42 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:20 10:47 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:25 10:52 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:30 10:57 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:35 11:02 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:40 11:07 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:45 11:12 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:50 11:17 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:55 11:22 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 11:00 11:27 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 11:05 11:32 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 11:10 11:37 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 11:15 11:42 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 11:20 11:47 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 11:25 11:52 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 11:30 11:57 0.3 0.14 0.3 0.1 0.3 0.1 1.46E-08 3.65E-07 11:35 12:02 0.6 0.30 0.6 0.3 0.6 0.3 3.25E-08 8.13E-07 11:40 12:07 1.3 0.63 1.3 0.6 1.3 0.6 6.96E-08 1.74E-06 11:45 12:12 2.1 1.06 2.1 1.1 2.1 1.1 1.19E-07 2.99E-06 11:50 12:17 2.9 1.45 2.9 1.4 2.9 1.4 1.66E-07 4.14E-06 11:55 12:22 3.3 1.63 3.3 1.6 3.3 1.6 1.91E-07 4.77E-06 12:00 12:27 12.0 6.02 12.0 6.0 12.0 6.0 7.29E-07 1.82E-05 12:05 12:32 12.5 6.25 12.5 6.3 12.5 6.3 7.71E-07 1.93E-05 12:10 12:37 13.5 6.74 13.5 6.7 13.5 6.7 8.52E-07 2.13E-05 12:15 12:42 14.2 7.09 14.2 7.1 14.2 7.1 9.24E-07 2.31E-05 12:20 12:47 14.6 7.28 14.6 7.3 14.6 7.3 9.61E-07 2.40E-05 12:25 12:52 13.9 6.93 13.9 6.9 13.9 6.9 8.88E-07 2.22E-05 12:30 12:57 13.0 6.52 13.0 6.5 13.0 6.5 8.12E-07 2.03E-05 12:35 13:02 0.3 0.17 1.0 0.9 3.7 1.8 2.32E-08 5.79E-07 12:40 13:07 0.3 0.13 1.0 0.9 3.7 1.8 1.76E-08 4.40E-07 12:45 13:12 0.2 0.09 1.0 0.9 3.7 1.8 1.22E-08 3.05E-07 12:50 13:17 0.1 0.04 1.0 0.9 3.7 1.8 6.75E-09 1.69E-07 12:55 13:22 0.0 0.02 1.0 0.9 3.7 1.8 <9E-10 <1E-7 13:00 13:27 0.0 0.00 1.0 0.9 3.7 1.8 <9E-10 <1E-7 13:05 13:32 0.0 0.00 1.0 0.9 3.7 1.8 <9E-10 <1E-7 13:10 13:37 0.0 0.00 1.0 0.9 3.7 1.8 <9E-10 <1E-7 13:15 13:42 0.0 0.00 1.0 0.9 3.7 1.8 <9E-10 <1E-7 13:20 13:47 0.0 0.00 1.0 0.9 3.7 1.8 <9E-10 <1E-7 13:25 13:52 0.0 0.00 1.0 0.9 3.7 1.8 <9E-10 <1E-7 84

Unclassified Radiological Emergency Preparedness Program (REP)

After Action Report/Improvement Plan Grand Gulf Nuclear Station STATE OF LOUISIANA GRAND GULF NUCLEAR PLANT November 1, 2011 6.0 MILE TIMES DOSE RATE DATA AIR SAMPLE DATA TIME CHEST TIME OF OF CHEST LEVEL WAIST ANKLE ANKLE PART IODINE RELEASE FIELD LEVEL BWC BWO WAIST BWC BWO BWC ACTIVITY ACTIVITY DATA DATA BWO MR/HR MR/HR MR/HR MR/HR (3) MR/HR MR/HR (uCi/cc) (µCi/cc) 09:35 10:05 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 09:40 10:10 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 09:45 10:15 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 09:50 10:20 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 09:55 10:25 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:00 10:30 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:05 10:35 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:10 10:40 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:15 10:45 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:20 10:50 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:25 10:55 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:30 11:00 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:35 11:05 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:40 11:10 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:45 11:15 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:50 11:20 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:55 11:25 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 11:00 11:30 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 11:05 11:35 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 11:10 11:40 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 11:15 11:45 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 11:20 11:50 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 11:25 11:55 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 11:30 12:00 0.2 0.12 0.2 0.1 0.2 0.1 1.31E-08 3.28E-07 11:35 12:05 0.5 0.26 0.5 0.3 0.5 0.3 2.93E-08 7.32E-07 11:40 12:10 1.1 0.55 1.1 0.6 1.1 0.6 6.26E-08 1.57E-06 11:45 12:15 1.9 0.93 1.9 0.9 1.9 0.9 1.08E-07 2.69E-06 11:50 12:20 2.5 1.27 2.5 1.3 2.5 1.3 1.49E-07 3.73E-06 11:55 12:25 2.9 1.43 2.9 1.4 2.9 1.4 1.72E-07 4.29E-06 12:00 12:30 9.0 4.51 9.0 4.5 9.0 4.5 6.14E-07 1.54E-05 12:05 12:35 9.4 4.68 9.4 4.7 9.4 4.7 6.50E-07 1.62E-05 12:10 12:40 10.1 5.05 10.1 5.0 10.1 5.0 7.18E-07 1.80E-05 12:15 12:45 10.6 5.31 10.6 5.3 10.6 5.3 7.79E-07 1.95E-05 12:20 12:50 10.9 5.45 10.9 5.4 10.9 5.4 8.10E-07 2.02E-05 12:25 12:55 10.4 5.19 10.4 5.2 10.4 5.2 7.48E-07 1.87E-05 12:30 13:00 9.8 4.88 9.8 4.9 9.8 4.9 6.84E-07 1.71E-05 12:35 13:05 0.3 0.13 0.8 0.7 3.0 1.5 1.95E-08 4.88E-07 12:40 13:10 0.2 0.10 0.8 0.7 3.0 1.5 1.48E-08 3.71E-07 12:45 13:15 0.1 0.07 0.8 0.7 3.0 1.5 1.04E-08 2.61E-07 12:50 13:20 0.1 0.03 0.8 0.7 3.0 1.5 6.16E-09 1.54E-07 12:55 13:25 0.0 0.01 0.8 0.7 3.0 1.5 <9E-10 <1E-7 13:00 13:30 0.0 0.00 0.8 0.7 3.0 1.5 <9E-10 <1E-7 13:05 13:35 0.0 0.00 0.8 0.7 3.0 1.5 <9E-10 <1E-7 13:10 13:40 0.0 0.00 0.8 0.7 3.0 1.5 <9E-10 <1E-7 13:15 13:45 0.0 0.00 0.8 0.7 3.0 1.5 <9E-10 <1E-7 13:20 13:50 0.0 0.00 0.8 0.7 3.0 1.5 <9E-10 <1E-7 13:25 13:55 0.0 0.00 0.8 0.7 3.0 1.5 <9E-10 <1E-7 85

Unclassified Radiological Emergency Preparedness Program (REP)

After Action Report/Improvement Plan Grand Gulf Nuclear Station STATE OF LOUISIANA GRAND GULF NUCLEAR PLANT November 1, 2011 6.5 MILE TIMES DOSE RATE DATA AIR SAMPLE DATA TIME CHEST TIME OF OF CHEST LEVEL WAIST ANKLE ANKLE PART IODINE RELEASE FIELD LEVEL BWC BWO WAIST BWC BWO BWC ACTIVITY ACTIVITY DATA DATA BWO MR/HR MR/HR MR/HR MR/HR (3) MR/HR MR/HR (uCi/cc) (µCi/cc) 09:35 10:07 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 09:40 10:12 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 09:45 10:17 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 09:50 10:22 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 09:55 10:27 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:00 10:32 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:05 10:37 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:10 10:42 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:15 10:47 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:20 10:52 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:25 10:57 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:30 11:02 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:35 11:07 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:40 11:12 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:45 11:17 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:50 11:22 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:55 11:27 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 11:00 11:32 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 11:05 11:37 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 11:10 11:42 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 11:15 11:47 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 11:20 11:52 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 11:25 11:57 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 11:30 12:02 0.2 0.11 0.2 0.1 0.2 0.1 1.17E-08 2.92E-07 11:35 12:07 0.5 0.23 0.5 0.2 0.5 0.2 2.60E-08 6.51E-07 11:40 12:12 1.0 0.49 1.0 0.5 1.0 0.5 5.57E-08 1.39E-06 11:45 12:17 1.7 0.83 1.7 0.8 1.7 0.8 9.57E-08 2.39E-06 11:50 12:22 2.3 1.13 2.3 1.1 2.3 1.1 1.33E-07 3.32E-06 11:55 12:27 2.5 1.27 2.5 1.3 2.5 1.3 1.53E-07 3.82E-06 12:00 12:32 6.6 3.28 6.6 3.3 6.6 3.3 5.00E-07 1.25E-05 12:05 12:37 6.8 3.41 6.8 3.4 6.8 3.4 5.28E-07 1.32E-05 12:10 12:42 7.3 3.67 7.3 3.7 7.3 3.7 5.84E-07 1.46E-05 12:15 12:47 7.7 3.87 7.7 3.9 7.7 3.9 6.33E-07 1.58E-05 12:20 12:52 7.9 3.97 7.9 4.0 7.9 4.0 6.59E-07 1.65E-05 12:25 12:57 7.6 3.78 7.6 3.8 7.6 3.8 6.09E-07 1.52E-05 12:30 13:02 7.1 3.55 7.1 3.6 7.1 3.6 5.57E-07 1.39E-05 12:35 13:07 0.2 0.09 0.7 0.6 2.4 1.2 1.59E-08 3.97E-07 12:40 13:12 0.1 0.07 0.7 0.6 2.4 1.2 1.21E-08 3.02E-07 12:45 13:17 0.1 0.05 0.7 0.6 2.4 1.2 8.68E-09 2.17E-07 12:50 13:22 0.0 0.02 0.7 0.6 2.4 1.2 5.57E-09 1.39E-07 12:55 13:27 0.0 0.01 0.7 0.6 2.4 1.2 <9E-10 <1E-7 13:00 13:32 0.0 0.00 0.7 0.6 2.4 1.2 <9E-10 <1E-7 13:05 13:37 0.0 0.00 0.7 0.6 2.4 1.2 <9E-10 <1E-7 13:10 13:42 0.0 0.00 0.7 0.6 2.4 1.2 <9E-10 <1E-7 13:15 13:47 0.0 0.00 0.7 0.6 2.4 1.2 <9E-10 <1E-7 13:20 13:52 0.0 0.00 0.7 0.6 2.4 1.2 <9E-10 <1E-7 13:25 13:57 0.0 0.00 0.7 0.6 2.4 1.2 <9E-10 <1E-7 86

Unclassified Radiological Emergency Preparedness Program (REP)

After Action Report/Improvement Plan Grand Gulf Nuclear Station STATE OF LOUISIANA GRAND GULF NUCLEAR PLANT November 1, 2011 7.0 MILE TIMES DOSE RATE DATA AIR SAMPLE DATA TIME CHEST TIME OF OF CHEST LEVEL WAIST ANKLE ANKLE PART IODINE RELEASE FIELD LEVEL BWC BWO WAIST BWC BWO BWC ACTIVITY ACTIVITY DATA DATA BWO MR/HR MR/HR MR/HR MR/HR (3) MR/HR MR/HR (uCi/cc) (µCi/cc) 09:35 10:10 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 09:40 10:15 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 09:45 10:20 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 09:50 10:25 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 09:55 10:30 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:00 10:35 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:05 10:40 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:10 10:45 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:15 10:50 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:20 10:55 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:25 11:00 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:30 11:05 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:35 11:10 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:40 11:15 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:45 11:20 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:50 11:25 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:55 11:30 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 11:00 11:35 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 11:05 11:40 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 11:10 11:45 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 11:15 11:50 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 11:20 11:55 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 11:25 12:00 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 11:30 12:05 0.2 0.10 0.2 0.1 0.2 0.1 1.12E-08 2.79E-07 11:35 12:10 0.4 0.22 0.4 0.2 0.4 0.2 2.49E-08 6.24E-07 11:40 12:15 0.9 0.46 0.9 0.5 0.9 0.5 5.34E-08 1.33E-06 11:45 12:20 1.5 0.77 1.5 0.8 1.5 0.8 9.17E-08 2.29E-06 11:50 12:25 2.1 1.05 2.1 1.1 2.1 1.1 1.27E-07 3.18E-06 11:55 12:30 2.4 1.19 2.4 1.2 2.4 1.2 1.46E-07 3.66E-06 12:00 12:35 5.3 2.67 5.3 2.7 5.3 2.7 4.62E-07 1.15E-05 12:05 12:40 5.5 2.77 5.5 2.8 5.5 2.8 4.88E-07 1.22E-05 12:10 12:45 6.0 2.99 6.0 3.0 6.0 3.0 5.40E-07 1.35E-05 12:15 12:50 6.3 3.14 6.3 3.1 6.3 3.1 5.85E-07 1.46E-05 12:20 12:55 6.5 3.23 6.5 3.2 6.5 3.2 6.08E-07 1.52E-05 12:25 13:00 6.1 3.07 6.1 3.1 6.1 3.1 5.62E-07 1.41E-05 12:30 13:05 5.8 2.89 5.8 2.9 5.8 2.9 5.14E-07 1.29E-05 12:35 13:10 0.2 0.08 0.6 0.5 2.2 1.1 1.46E-08 3.66E-07 12:40 13:15 0.1 0.06 0.6 0.5 2.2 1.1 1.12E-08 2.79E-07 12:45 13:20 0.1 0.04 0.6 0.5 2.2 1.1 8.09E-09 2.02E-07 12:50 13:25 0.0 0.02 0.6 0.5 2.2 1.1 5.37E-09 1.34E-07 12:55 13:30 0.0 0.01 0.6 0.5 2.2 1.1 <9E-10 <1E-7 13:00 13:35 0.0 0.00 0.6 0.5 2.2 1.1 <9E-10 <1E-7 13:05 13:40 0.0 0.00 0.6 0.5 2.2 1.1 <9E-10 <1E-7 13:10 13:45 0.0 0.00 0.6 0.5 2.2 1.1 <9E-10 <1E-7 13:15 13:50 0.0 0.00 0.6 0.5 2.2 1.1 <9E-10 <1E-7 13:20 13:55 0.0 0.00 0.6 0.5 2.2 1.1 <9E-10 <1E-7 13:25 14:00 0.0 0.00 0.6 0.5 2.2 1.1 <9E-10 <1E-7 87

Unclassified Radiological Emergency Preparedness Program (REP)

After Action Report/Improvement Plan Grand Gulf Nuclear Station STATE OF LOUISIANA GRAND GULF NUCLEAR PLANT November 1, 2011 7.5 MILE TIMES DOSE RATE DATA AIR SAMPLE DATA TIME CHEST TIME OF OF CHEST LEVEL WAIST ANKLE ANKLE PART IODINE RELEASE FIELD LEVEL BWC BWO WAIST BWC BWO BWC ACTIVITY ACTIVITY DATA DATA BWO MR/HR MR/HR MR/HR MR/HR (3) MR/HR MR/HR (uCi/cc) (µCi/cc) 09:35 10:12 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 09:40 10:17 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 09:45 10:22 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 09:50 10:27 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 09:55 10:32 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:00 10:37 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:05 10:42 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:10 10:47 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:15 10:52 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:20 10:57 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:25 11:02 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:30 11:07 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:35 11:12 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:40 11:17 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:45 11:22 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:50 11:27 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:55 11:32 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 11:00 11:37 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 11:05 11:42 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 11:10 11:47 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 11:15 11:52 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 11:20 11:57 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 11:25 12:02 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 11:30 12:07 0.2 0.10 0.2 0.1 0.2 0.1 1.07E-08 2.67E-07 11:35 12:12 0.4 0.21 0.4 0.2 0.4 0.2 2.39E-08 5.97E-07 11:40 12:17 0.9 0.44 0.9 0.4 0.9 0.4 5.11E-08 1.28E-06 11:45 12:22 1.5 0.75 1.5 0.7 1.5 0.7 8.78E-08 2.19E-06 11:50 12:27 2.0 1.02 2.0 1.0 2.0 1.0 1.22E-07 3.04E-06 11:55 12:32 2.3 1.15 2.3 1.2 2.3 1.2 1.40E-07 3.50E-06 12:00 12:37 4.8 2.39 4.8 2.4 4.8 2.4 4.23E-07 1.06E-05 12:05 12:42 5.0 2.48 5.0 2.5 5.0 2.5 4.48E-07 1.12E-05 12:10 12:47 5.3 2.67 5.3 2.7 5.3 2.7 4.95E-07 1.24E-05 12:15 12:52 5.6 2.81 5.6 2.8 5.6 2.8 5.37E-07 1.34E-05 12:20 12:57 5.8 2.89 5.8 2.9 5.8 2.9 5.58E-07 1.39E-05 12:25 13:02 5.5 2.75 5.5 2.7 5.5 2.7 5.16E-07 1.29E-05 12:30 13:07 5.2 2.58 5.2 2.6 5.2 2.6 4.72E-07 1.18E-05 12:35 13:12 0.1 0.07 0.6 0.5 2.0 1.0 1.34E-08 3.36E-07 12:40 13:17 0.1 0.05 0.6 0.5 2.0 1.0 1.02E-08 2.56E-07 12:45 13:22 0.1 0.03 0.6 0.5 2.0 1.0 7.51E-09 1.88E-07 12:50 13:27 0.0 0.02 0.6 0.5 2.0 1.0 5.18E-09 1.29E-07 12:55 13:32 0.0 0.01 0.6 0.5 2.0 1.0 <9E-10 <1E-7 13:00 13:37 0.0 0.00 0.6 0.5 2.0 1.0 <9E-10 <1E-7 13:05 13:42 0.0 0.00 0.6 0.5 2.0 1.0 <9E-10 <1E-7 13:10 13:47 0.0 0.00 0.6 0.5 2.0 1.0 <9E-10 <1E-7 13:15 13:52 0.0 0.00 0.6 0.5 2.0 1.0 <9E-10 <1E-7 13:20 13:57 0.0 0.00 0.6 0.5 2.0 1.0 <9E-10 <1E-7 13:25 14:02 0.0 0.00 0.6 0.5 2.0 1.0 <9E-10 <1E-7 88

Unclassified Radiological Emergency Preparedness Program (REP)

After Action Report/Improvement Plan Grand Gulf Nuclear Station STATE OF LOUISIANA GRAND GULF NUCLEAR PLANT November 1, 2011 8.0 MILE TIMES DOSE RATE DATA AIR SAMPLE DATA TIME CHEST TIME OF OF CHEST LEVEL WAIST ANKLE ANKLE PART IODINE RELEASE FIELD LEVEL BWC BWO WAIST BWC BWO BWC ACTIVITY ACTIVITY DATA DATA BWO MR/HR MR/HR MR/HR MR/HR (3) MR/HR MR/HR (uCi/cc) (µCi/cc) 09:35 10:15 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 09:40 10:20 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 09:45 10:25 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 09:50 10:30 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 09:55 10:35 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:00 10:40 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:05 10:45 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:10 10:50 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:15 10:55 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:20 11:00 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:25 11:05 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:30 11:10 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:35 11:15 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:40 11:20 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:45 11:25 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:50 11:30 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:55 11:35 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 11:00 11:40 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 11:05 11:45 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 11:10 11:50 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 11:15 11:55 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 11:20 12:00 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 11:25 12:05 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 11:30 12:10 0.2 0.09 0.2 0.1 0.2 0.1 9.72E-09 2.43E-07 11:35 12:15 0.4 0.20 0.4 0.2 0.4 0.2 2.17E-08 5.43E-07 11:40 12:20 0.9 0.43 0.9 0.4 0.9 0.4 4.65E-08 1.16E-06 11:45 12:25 1.4 0.72 1.4 0.7 1.4 0.7 7.98E-08 2.00E-06 11:50 12:30 2.0 0.99 2.0 1.0 2.0 1.0 1.11E-07 2.77E-06 11:55 12:35 2.2 1.11 2.2 1.1 2.2 1.1 1.27E-07 3.19E-06 12:00 12:40 4.2 2.10 4.2 2.1 4.2 2.1 3.47E-07 8.67E-06 12:05 12:45 4.4 2.18 4.4 2.2 4.4 2.2 3.67E-07 9.17E-06 12:10 12:50 4.7 2.36 4.7 2.4 4.7 2.4 4.06E-07 1.01E-05 12:15 12:55 5.0 2.48 5.0 2.5 5.0 2.5 4.40E-07 1.10E-05 12:20 13:00 5.1 2.55 5.1 2.5 5.1 2.5 4.57E-07 1.14E-05 12:25 13:05 4.8 2.42 4.8 2.4 4.8 2.4 4.22E-07 1.06E-05 12:30 13:10 4.6 2.28 4.6 2.3 4.6 2.3 3.86E-07 9.66E-06 12:35 13:15 0.1 0.06 0.5 0.5 1.9 0.9 1.10E-08 2.75E-07 12:40 13:20 0.1 0.05 0.5 0.5 1.9 0.9 8.39E-09 2.10E-07 12:45 13:25 0.1 0.03 0.5 0.5 1.9 0.9 6.34E-09 1.58E-07 12:50 13:30 0.0 0.02 0.5 0.5 1.9 0.9 4.78E-09 1.20E-07 12:55 13:35 0.0 0.01 0.5 0.5 1.9 0.9 <9E-10 <1E-7 13:00 13:40 0.0 0.00 0.5 0.5 1.9 0.9 <9E-10 <1E-7 13:05 13:45 0.0 0.00 0.5 0.5 1.9 0.9 <9E-10 <1E-7 13:10 13:50 0.0 0.00 0.5 0.5 1.9 0.9 <9E-10 <1E-7 13:15 13:55 0.0 0.00 0.5 0.5 1.9 0.9 <9E-10 <1E-7 13:20 14:00 0.0 0.00 0.5 0.5 1.9 0.9 <9E-10 <1E-7 13:25 14:05 0.0 0.00 0.5 0.5 1.9 0.9 <9E-10 <1E-7 89

Unclassified Radiological Emergency Preparedness Program (REP)

After Action Report/Improvement Plan Grand Gulf Nuclear Station STATE OF LOUISIANA GRAND GULF NUCLEAR PLANT November 1, 2011 8.5 MILE TIMES DOSE RATE DATA AIR SAMPLE DATA TIME CHEST TIME OF OF CHEST LEVEL WAIST PART IODINE RELEASE FIELD LEVEL BWC BWO WAIST BWC ANKLE ANKLE ACTIVITY ACTIVITY DATA DATA BWO MR/HR MR/HR MR/HR MR/HR (3) BWO MR/HR BWC MR/HR (uCi/cc) (µCi/cc) 09:35 10:17 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 09:40 10:22 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 09:45 10:27 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 09:50 10:32 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 09:55 10:37 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:00 10:42 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:05 10:47 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:10 10:52 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:15 10:57 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:20 11:02 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:25 11:07 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:30 11:12 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:35 11:17 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:40 11:22 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:45 11:27 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:50 11:32 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:55 11:37 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 11:00 11:42 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 11:05 11:47 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 11:10 11:52 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 11:15 11:57 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 11:20 12:02 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 11:25 12:07 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 11:30 12:12 0.2 0.09 0.2 0.1 0.2 0.1 8.74E-09 2.19E-07 11:35 12:17 0.4 0.20 0.4 0.2 0.4 0.2 1.95E-08 4.89E-07 11:40 12:22 0.8 0.42 0.8 0.4 0.8 0.4 4.18E-08 1.05E-06 11:45 12:27 1.4 0.70 1.4 0.7 1.4 0.7 7.19E-08 1.80E-06 11:50 12:32 1.9 0.95 1.9 1.0 1.9 1.0 9.97E-08 2.49E-06 11:55 12:37 2.2 1.08 2.2 1.1 2.2 1.1 1.15E-07 2.87E-06 12:00 12:42 3.6 1.82 3.6 1.8 3.6 1.8 2.70E-07 6.76E-06 12:05 12:47 3.8 1.89 3.8 1.9 3.8 1.9 2.86E-07 7.15E-06 12:10 12:52 4.1 2.04 4.1 2.0 4.1 2.0 3.16E-07 7.90E-06 12:15 12:57 4.3 2.15 4.3 2.1 4.3 2.1 3.43E-07 8.57E-06 12:20 13:02 4.4 2.20 4.4 2.2 4.4 2.2 3.56E-07 8.91E-06 12:25 13:07 4.2 2.10 4.2 2.1 4.2 2.1 3.29E-07 8.23E-06 12:30 13:12 3.9 1.97 3.9 2.0 3.9 2.0 3.01E-07 7.53E-06 12:35 13:17 0.1 0.05 0.5 0.4 1.8 0.9 8.57E-09 2.14E-07 12:40 13:22 0.1 0.04 0.5 0.4 1.8 0.9 6.55E-09 1.64E-07 12:45 13:27 0.1 0.03 0.5 0.4 1.8 0.9 5.17E-09 1.29E-07 12:50 13:32 0.0 0.01 0.5 0.4 1.8 0.9 4.39E-09 1.10E-07 12:55 13:37 0.0 0.01 0.5 0.4 1.8 0.9 <9E-10 <1E-7 13:00 13:42 0.0 0.00 0.5 0.4 1.8 0.9 <9E-10 <1E-7 13:05 13:47 0.0 0.00 0.5 0.4 1.8 0.9 <9E-10 <1E-7 13:10 13:52 0.0 0.00 0.5 0.4 1.8 0.9 <9E-10 <1E-7 13:15 13:57 0.0 0.00 0.5 0.4 1.8 0.9 <9E-10 <1E-7 13:20 14:02 0.0 0.00 0.5 0.4 1.8 0.9 <9E-10 <1E-7 13:25 14:07 0.0 0.00 0.5 0.4 1.8 0.9 <9E-10 <1E-7 90

Unclassified Radiological Emergency Preparedness Program (REP)

After Action Report/Improvement Plan Grand Gulf Nuclear Station STATE OF LOUISIANA GRAND GULF NUCLEAR PLANT November 1, 2011 9.0 MILE TIMES DOSE RATE DATA AIR SAMPLE DATA TIME CHEST TIME OF OF CHEST LEVEL WAIST ANKLE ANKLE PART IODINE RELEASE FIELD LEVEL BWC BWO WAIST BWC BWO BWC ACTIVITY ACTIVITY DATA DATA BWO MR/HR MR/HR MR/HR MR/HR (3) MR/HR MR/HR (uCi/cc) (µCi/cc) 09:35 10:20 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 09:40 10:25 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 09:45 10:30 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 09:50 10:35 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 09:55 10:40 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:00 10:45 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:05 10:50 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:10 10:55 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:15 11:00 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:20 11:05 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:25 11:10 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:30 11:15 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:35 11:20 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:40 11:25 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:45 11:30 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:50 11:35 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:55 11:40 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 11:00 11:45 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 11:05 11:50 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 11:10 11:55 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 11:15 12:00 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 11:20 12:05 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 11:25 12:10 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 11:30 12:15 0.2 0.09 0.2 0.1 0.2 0.1 8.26E-09 2.06E-07 11:35 12:20 0.4 0.19 0.4 0.2 0.4 0.2 1.85E-08 4.62E-07 11:40 12:25 0.8 0.40 0.8 0.4 0.8 0.4 3.95E-08 9.89E-07 11:45 12:30 1.4 0.68 1.4 0.7 1.4 0.7 6.80E-08 1.70E-06 11:50 12:35 1.8 0.92 1.8 0.9 1.8 0.9 9.42E-08 2.35E-06 11:55 12:40 2.1 1.04 2.1 1.0 2.1 1.0 1.08E-07 2.71E-06 12:00 12:45 3.1 1.54 3.1 1.5 3.1 1.5 2.32E-07 5.81E-06 12:05 12:50 3.2 1.60 3.2 1.6 3.2 1.6 2.46E-07 6.14E-06 12:10 12:55 3.4 1.72 3.4 1.7 3.4 1.7 2.72E-07 6.79E-06 12:15 13:00 3.6 1.82 3.6 1.8 3.6 1.8 2.94E-07 7.36E-06 12:20 13:05 3.7 1.86 3.7 1.9 3.7 1.9 3.06E-07 7.65E-06 12:25 13:10 3.5 1.77 3.5 1.8 3.5 1.8 2.83E-07 7.07E-06 12:30 13:15 3.3 1.66 3.3 1.7 3.3 1.7 2.59E-07 6.47E-06 12:35 13:20 0.1 0.04 0.5 0.4 1.6 0.8 7.35E-09 1.84E-07 12:40 13:25 0.1 0.03 0.5 0.4 1.6 0.8 5.62E-09 1.41E-07 12:45 13:30 0.0 0.02 0.5 0.4 1.6 0.8 4.58E-09 1.15E-07 12:50 13:35 0.0 0.01 0.5 0.4 1.6 0.8 4.20E-09 1.05E-07 12:55 13:40 0.0 0.00 0.5 0.4 1.6 0.8 <9E-10 <1E-7 13:00 13:45 0.0 0.00 0.5 0.4 1.6 0.8 <9E-10 <1E-7 13:05 13:50 0.0 0.00 0.5 0.4 1.6 0.8 <9E-10 <1E-7 13:10 13:55 0.0 0.00 0.5 0.4 1.6 0.8 <9E-10 <1E-7 13:15 14:00 0.0 0.00 0.5 0.4 1.6 0.8 <9E-10 <1E-7 13:20 14:05 0.0 0.00 0.5 0.4 1.6 0.8 <9E-10 <1E-7 13:25 14:10 0.0 0.00 0.5 0.4 1.6 0.8 <9E-10 <1E-7 91

Unclassified Radiological Emergency Preparedness Program (REP)

After Action Report/Improvement Plan Grand Gulf Nuclear Station STATE OF LOUISIANA GRAND GULF NUCLEAR PLANT November 1, 2011 9.5 MILE TIMES DOSE RATE DATA AIR SAMPLE DATA TIME CHEST TIME OF OF CHEST LEVEL WAIST ANKLE ANKLE PART IODINE RELEASE FIELD LEVEL BWC BWO WAIST BWC BWO BWC ACTIVITY ACTIVITY DATA DATA BWO MR/HR MR/HR MR/HR MR/HR (3) MR/HR MR/HR (uCi/cc) (µCi/cc) 09:35 10:22 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 09:40 10:27 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 09:45 10:32 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 09:50 10:37 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 09:55 10:42 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:00 10:47 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:05 10:52 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:10 10:57 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:15 11:02 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:20 11:07 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:25 11:12 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:30 11:17 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:35 11:22 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:40 11:27 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:45 11:32 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:50 11:37 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:55 11:42 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 11:00 11:47 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 11:05 11:52 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 11:10 11:57 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 11:15 12:02 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 11:20 12:07 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 11:25 12:12 0.0 0.00 0.0 0.0 0.0 0.0 <9E-10 <1E-7 11:30 12:17 0.2 0.08 0.2 0.1 0.2 0.1 8.06E-09 2.02E-07 11:35 12:22 0.4 0.18 0.4 0.2 0.4 0.2 1.80E-08 4.51E-07 11:40 12:27 0.8 0.39 0.8 0.4 0.8 0.4 3.86E-08 9.65E-07 11:45 12:32 1.3 0.65 1.3 0.7 1.3 0.7 6.64E-08 1.66E-06 11:50 12:37 1.8 0.89 1.8 0.9 1.8 0.9 9.20E-08 2.30E-06 11:55 12:42 2.0 1.00 2.0 1.0 2.0 1.0 1.06E-07 2.65E-06 12:00 12:47 2.5 1.25 2.5 1.3 2.5 1.3 2.17E-07 5.42E-06 12:05 12:52 2.6 1.30 2.6 1.3 2.6 1.3 2.29E-07 5.74E-06 12:10 12:57 2.8 1.41 2.8 1.4 2.8 1.4 2.54E-07 6.34E-06 12:15 13:02 3.0 1.48 3.0 1.5 3.0 1.5 2.75E-07 6.88E-06 12:20 13:07 3.0 1.52 3.0 1.5 3.0 1.5 2.86E-07 7.15E-06 12:25 13:12 2.9 1.45 2.9 1.4 2.9 1.4 2.64E-07 6.61E-06 12:30 13:17 2.7 1.36 2.7 1.4 2.7 1.4 2.42E-07 6.04E-06 12:35 13:22 0.1 0.04 0.4 0.4 1.5 0.8 6.87E-09 1.72E-07 12:40 13:27 0.1 0.03 0.4 0.4 1.5 0.8 5.25E-09 1.31E-07 12:45 13:32 0.0 0.02 0.4 0.4 1.5 0.8 4.35E-09 1.09E-07 12:50 13:37 0.0 0.01 0.4 0.4 1.5 0.8 4.12E-09 1.03E-07 12:55 13:42 0.0 0.00 0.4 0.4 1.5 0.8 <9E-10 <1E-7 13:00 13:47 0.0 0.00 0.4 0.4 1.5 0.8 <9E-10 <1E-7 13:05 13:52 0.0 0.00 0.4 0.4 1.5 0.8 <9E-10 <1E-7 13:10 13:57 0.0 0.00 0.4 0.4 1.5 0.8 <9E-10 <1E-7 13:15 14:02 0.0 0.00 0.4 0.4 1.5 0.8 <9E-10 <1E-7 13:20 14:07 0.0 0.00 0.4 0.4 1.5 0.8 <9E-10 <1E-7 13:25 14:12 0.0 0.00 0.4 0.4 1.5 0.8 <9E-10 <1E-7 92

Unclassified Radiological Emergency Preparedness Program (REP)

After Action Report/Improvement Plan Grand Gulf Nuclear Station STATE OF LOUISIANA GRAND GULF NUCLEAR PLANT November 1, 2011 10.0 MILE TIMES DOSE RATE DATA AIR SAMPLE DATA TIME CHEST TIME OF OF CHEST LEVEL WAIST PART IODINE RELEASE FIELD LEVEL BWC BWO WAIST BWC ANKLE ANKLE ACTIVITY ACTIVITY DATA DATA BWO MR/HR MR/HR MR/HR MR/HR (3) BWO MR/HR BWC MR/HR (uCi/cc) (µCi/cc) 09:35 10:25 0.0 0.0 0.0 0.0 0.0 0.0 <9E-10 <1E-7 09:40 10:30 0.0 0.0 0.0 0.0 0.0 0.0 <9E-10 <1E-7 09:45 10:35 0.0 0.0 0.0 0.0 0.0 0.0 <9E-10 <1E-7 09:50 10:40 0.0 0.0 0.0 0.0 0.0 0.0 <9E-10 <1E-7 09:55 10:45 0.0 0.0 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:00 10:50 0.0 0.0 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:05 10:55 0.0 0.0 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:10 11:00 0.0 0.0 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:15 11:05 0.0 0.0 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:20 11:10 0.0 0.0 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:25 11:15 0.0 0.0 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:30 11:20 0.0 0.0 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:35 11:25 0.0 0.0 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:40 11:30 0.0 0.0 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:45 11:35 0.0 0.0 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:50 11:40 0.0 0.0 0.0 0.0 0.0 0.0 <9E-10 <1E-7 10:55 11:45 0.0 0.0 0.0 0.0 0.0 0.0 <9E-10 <1E-7 11:00 11:50 0.0 0.0 0.0 0.0 0.0 0.0 <9E-10 <1E-7 11:05 11:55 0.0 0.0 0.0 0.0 0.0 0.0 <9E-10 <1E-7 11:10 12:00 0.0 0.0 0.0 0.0 0.0 0.0 <9E-10 <1E-7 11:15 12:05 0.0 0.0 0.0 0.0 0.0 0.0 <9E-10 <1E-7 11:20 12:10 0.0 0.0 0.0 0.0 0.0 0.0 <9E-10 <1E-7 11:25 12:15 0.0 0.0 0.0 0.0 0.0 0.0 <9E-10 <1E-7 11:30 12:20 0.2 0.08 0.16 0.08 0.16 0.08 7.77E-09 1.94E-07 11:35 12:25 0.4 0.18 0.35 0.18 0.35 0.18 1.74E-08 4.35E-07 11:40 12:30 0.7 0.37 0.74 0.37 0.74 0.37 3.72E-08 9.31E-07 11:45 12:35 1.3 0.63 1.25 0.63 1.25 0.63 6.40E-08 1.60E-06 11:50 12:40 1.7 0.85 1.71 0.85 1.71 0.85 8.87E-08 2.22E-06 11:55 12:45 1.9 0.96 1.93 0.96 1.93 0.96 1.02E-07 2.55E-06 12:00 12:50 1.9 0.97 1.94 0.97 1.94 0.97 1.94E-07 4.85E-06 12:05 12:55 2.0 1.01 2.02 1.01 2.02 1.01 2.05E-07 5.13E-06 12:10 13:00 2.2 1.09 2.18 1.09 2.18 1.09 2.27E-07 5.67E-06 12:15 13:05 2.3 1.15 2.31 1.15 2.31 1.15 2.46E-07 6.15E-06 12:20 13:10 2.4 1.18 2.36 1.18 2.36 1.18 2.56E-07 6.39E-06 12:25 13:15 2.2 1.12 2.24 1.12 2.24 1.12 2.36E-07 5.91E-06 12:30 13:20 2.1 1.05 2.10 1.05 2.10 1.05 2.16E-07 5.40E-06 12:35 13:25 0.06 0.03 0.38 0.34 1.38 0.69 6.14E-09 1.53E-07 12:40 13:30 0.04 0.02 0.38 0.34 1.38 0.69 4.70E-09 1.18E-07 12:45 13:35 0.03 0.01 0.38 0.34 1.38 0.69 <9E-10 <1E-7 12:50 13:40 0.01 0.01 0.38 0.34 1.38 0.69 <9E-10 <1E-7 12:55 13:45 0.01 0.0 0.38 0.34 1.38 0.69 <9E-10 <1E-7 13:00 13:50 0.0 0.0 0.38 0.34 1.38 0.69 <9E-10 <1E-7 13:05 13:55 0.0 0.0 0.38 0.34 1.38 0.69 <9E-10 <1E-7 13:10 14:00 0.0 0.0 0.38 0.34 1.38 0.69 <9E-10 <1E-7 13:15 14:05 0.0 0.0 0.38 0.34 1.38 0.69 <9E-10 <1E-7 13:20 14:10 0.0 0.0 0.38 0.34 1.38 0.69 <9E-10 <1E-7 13:25 14:15 0.0 0.0 0.38 0.34 1.38 0.69 <9E-10 <1E-7 93

Unclassified Radiological Emergency Preparedness Program (REP)

After Action Report/Improvement Plan Grand Gulf Nuclear Station STATE OF LOUISIANA GRAND GULF NUCLEAR STATION 11/1/2011 ATTACHMENT E LDEQ DOSE PROJECTIONS 94

Unclassified Radiological Emergency Preparedness Program (REP)

After Action Report/Improvement Plan Grand Gulf Nuclear Station STATE OF LOUISIANA GRAND GULF NUCLEAR STATION 11/1/2011 11:30 Dose Projection Case Summary Event Type Nuclear Power Plant Location Name: Grand Gulf - Unit 1 City, county, state: Port Gibson, Claiborne, MS Lat / Long / Elev: 32.0075° N, 91.0481° W, 49 m Time zone: Central Population (2000): 69 / 1,694 / 7,626 (2 / 5 / 10 mi)

Reactor Parameters Reactor power: 3898 MWt Average fuel burn-up: 30000 MWD / MTU Containment type: BWR Mark III Containment volume: 1.53E+06 ft³ Design pressure: 15 lb/in² Design leak rate: 0.35 %/d Coolant mass: 1.92E+05 kg Assemblies in core: 800 Source Term Type: Effluent Releases - by Mixtures Shutdown: 2011/11/01 09:15 Sample taken: 2011/11/01 11:30 Release rates Noble gases: 9.22E-02 Ci/s I-131 Equivalent: 2.99E+00 Ci/s Particulates: 0.00E+00 Ci/s Release Pathway Type: Direct to Atmosphere Release height: 10. m Release timings To atmosphere start: 2011/11/01 11:30 To atmosphere duration: 0 days, and 02:00 Meteorology Type: Actual Observations Dataset name: GGNS IPX 2011 Met Data 1130 Dataset desc: Obs/fcsts for Grand Gulf - Unit 1 Summary of data Dir Speed Stab Temp 95

Unclassified Radiological Emergency Preparedness Program (REP)

After Action Report/Improvement Plan Grand Gulf Nuclear Station STATE OF LOUISIANA GRAND GULF NUCLEAR PLANT November 1, 2011 at release point: Type deg mph class Precip °F 2011/11/01 11:30 Obs 067 12.0 C None Dataset options: Est. missing stability using: Wind speed, time of day, etc.

Adjust stability for consistency: No Modify winds for topography: Yes Calculations Case description: GGNS IPX 2011 Evaluated Exercise 1130 End of calculations: 2011/11/01 19:30 Start of release to atmosphere + 8 h Distance of calculation: Close-in + to 10 miles Close-in distances: 0.1, 0.2, 0.3, 0.5, 0.7, 1.0, 1.5, 2.0 miles Maximum Dose Values (rem) - Close-In Dist from release miles 0.1 0.2 0.3 0.5 0.7 1. 1.5 2.

(kilometers) (0.16) (0.32) (0.48) (0.8) (1.13) (1.61) (2.41) (3.22)

Total EDE 1.7E+01 4.4E+00 2.0E+00 7.4E-01 3.9E-01 1.9E-01 8.9E-02 5.0E-02 Thyroid CDE 4.1E+02 1.1E+02 5.0E+01 1.8E+01 9.7E+00 4.8E+00 2.2E+00 1.2E+00 Inhalation CEDE 1.3E+01 3.3E+00 1.5E+00 5.6E-01 2.9E-01 1.5E-01 6.7E-02 3.8E-02 Cloudshine 1.6E-02 7.4E-03 4.4E-03 2.2E-03 1.3E-03 *** *** ***

4-day Groundshine 4.1E+00 1.1E+00 4.9E-01 1.8E-01 9.5E-02 4.7E-02 2.2E-02 1.2E-02 Inter Phase 1st Yr 1.4E+01 3.6E+00 1.7E+00 6.1E-01 3.2E-01 1.6E-01 7.3E-02 4.1E-02 Inter Phase 2nd Yr *** *** *** *** *** *** *** ***

Notes:

• Doses exceeding PAGs are underlined.

• Early-Phase PAGs: TEDE - 1 rem, Thyroid (iodine) CDE - 5 rem

• Intermediate-Phase EPA PAGs: 1st year - 2 rem, 2nd year - 0.5 rem

• *** indicates values less than 1 mrem

• To view all values - use Detailed Results l Numeric Table

• Total EDE = Inhalation CEDE + Cloudshine + 4-Day Groundshine Maximum Dose Values (rem) - To 10 mi Dist from release miles 3 4 5 7 10 (kilometers) (4.8) (6.4) (8.0) (11.3) (16.1)

Total EDE 1.7E-02 1.3E-02 8.5E-03 4.8E-03 3.5E-03 Thyroid CDE 4.4E-01 3.4E-01 2.1E-01 1.2E-01 8.8E-02 Inhalation CEDE 1.3E-02 1.0E-02 6.5E-03 3.6E-03 2.7E-03 Cloudshine *** *** *** *** ***

4-day Groundshine 4.1E-03 3.2E-03 2.0E-03 1.1E-03 ***

Inter Phase 1st Yr 1.4E-02 1.1E-02 6.7E-03 3.8E-03 2.8E-03 96

Unclassified Radiological Emergency Preparedness Program (REP)

After Action Report/Improvement Plan Grand Gulf Nuclear Station STATE OF LOUISIANA GRAND GULF NUCLEAR PLANT November 1, 2011 Inter Phase 2nd Yr *** *** *** *** ***

Notes:

• Doses exceeding PAGs are underlined.

• Early-Phase PAGs: TEDE - 1 rem, Thyroid (iodine) CDE - 5 rem

• Intermediate-Phase PAGs: 1st year - 2 rem, 2nd year - 0.5 rem

• *** indicates values less than 1 mrem

• To view all values - use Detailed Results l Numeric Table

• Total EDE = CEDE Inhalation + Cloudshine + 4-Day Groundshine

• Total Acute Bone = Bone Inhalation + Cloudshine + Period Groundshine 97

Unclassified Radiological Emergency Preparedness Program (REP)

After Action Report/Improvement Plan Grand Gulf Nuclear Station STATE OF LOUISIANA GRAND GULF NUCLEAR STATION 11/1/2011 11:45 Dose Projection Case Summary Event Type Nuclear Power Plant Location Name: Grand Gulf - Unit 1 City, county, state: Port Gibson, Claiborne, MS Lat / Long / Elev: 32.0075° N, 91.0481° W, 49 m Time zone: Central Population (2000): 69 / 1,694 / 7,626 (2 / 5 / 10 mi)

Reactor Parameters Reactor power: 3898 MWt Average fuel burn-up: 30000 MWD / MTU Containment type: BWR Mark III Containment volume: 1.53E+06 ft³ Design pressure: 15 lb/in² Design leak rate: 0.35 %/d Coolant mass: 1.92E+05 kg Assemblies in core: 800 Source Term Type: Effluent Releases - by Mixtures Shutdown: 2011/11/01 09:15 Sample taken: 2011/11/01 11:45 Release rates Noble gases: 7.78E-01 Ci/s I-131 Equivalent: 2.34E+01 Ci/s Particulates: 0.00E+00 Ci/s Release Pathway Type: Direct to Atmosphere Release height: 10. m Release timings To atmosphere start: 2011/11/01 11:30 To atmosphere duration: 0 days, and 02:00 Meteorology Type: Actual Observations Dataset name: GGNS IPX 2011 Met Data 1145 Dataset desc: Obs/fcsts for Grand Gulf - Unit 1 98

Unclassified Radiological Emergency Preparedness Program (REP)

After Action Report/Improvement Plan Grand Gulf Nuclear Station STATE OF LOUISIANA GRAND GULF NUCLEAR PLANT November 1, 2011 Summary of data Dir Speed Stab Temp at release point: Type deg mph class Precip °F 2011/11/01 11:30 Obs 067 12.0 C None 2011/11/01 11:45 Obs 064 12.0 C None Dataset options: Est. missing stability using: Wind speed, time of day, etc.

Adjust stability for consistency: No Modify winds for topography: Yes Calculations Case description: GGNS IPX 2011 Evaluated Exercise 1145 End of calculations: 2011/11/01 19:30 Start of release to atmosphere + 8 h Distance of calculation: Close-in + to 10 miles Close-in distances: 0.1, 0.2, 0.3, 0.5, 0.7, 1.0, 1.5, 2.0 miles Maximum Dose Values (rem) - Close-In Dist from release miles 0.1 0.2 0.3 0.5 0.7 1. 1.5 2.

(kilometers) (0.16) (0.32) (0.48) (0.8) (1.13) (1.61) (2.41) (3.22)

Total EDE 1.3E+02 3.3E+01 1.5E+01 5.6E+00 2.9E+00 1.5E+00 6.7E-01 3.8E-01 Thyroid CDE 3.1E+03 8.2E+02 3.8E+02 1.4E+02 7.3E+01 3.6E+01 1.7E+01 9.3E+00 Inhalation CEDE 9.5E+01 2.5E+01 1.1E+01 4.2E+00 2.2E+00 1.1E+00 5.0E-01 2.8E-01 Cloudshine 1.2E-01 5.7E-02 3.4E-02 1.7E-02 9.8E-03 5.2E-03 1.6E-03 ***

4-day Groundshine 3.1E+01 8.1E+00 3.7E+00 1.4E+00 7.2E-01 3.5E-01 1.6E-01 9.1E-02 Inter Phase 1st Yr 1.0E+02 2.7E+01 1.2E+01 4.6E+00 2.4E+00 1.2E+00 5.5E-01 3.1E-01 Inter Phase 2nd Yr *** *** *** *** *** *** *** ***

Notes:

• Doses exceeding PAGs are underlined.

• Early-Phase PAGs: TEDE - 1 rem, Thyroid (iodine) CDE - 5 rem

• Intermediate-Phase EPA PAGs: 1st year - 2 rem, 2nd year - 0.5 rem

• *** indicates values less than 1 mrem

• To view all values - use Detailed Results l Numeric Table

• Total EDE = Inhalation CEDE + Cloudshine + 4-Day Groundshine Maximum Dose Values (rem) - To 10 mi Dist from release miles 3 4 5 7 10 (kilometers) (4.8) (6.4) (8.0) (11.3) (16.1)

Total EDE 1.5E-01 1.0E-01 6.6E-02 3.7E-02 2.7E-02 Thyroid CDE 3.9E+00 2.6E+00 1.6E+00 9.2E-01 6.9E-01 Inhalation CEDE 1.2E-01 7.8E-02 5.0E-02 2.8E-02 2.1E-02 Cloudshine *** *** *** *** ***

4-day Groundshine 3.7E-02 2.4E-02 1.5E-02 8.6E-03 6.4E-03 99

Unclassified Radiological Emergency Preparedness Program (REP)

After Action Report/Improvement Plan Grand Gulf Nuclear Station STATE OF LOUISIANA GRAND GULF NUCLEAR PLANT November 1, 2011 Inter Phase 1st Yr 1.2E-01 8.1E-02 5.2E-02 2.9E-02 2.2E-02 Inter Phase 2nd Yr *** *** *** *** ***

Notes:

• Doses exceeding PAGs are underlined.

• Early-Phase PAGs: TEDE - 1 rem, Thyroid (iodine) CDE - 5 rem

• Intermediate-Phase PAGs: 1st year - 2 rem, 2nd year - 0.5 rem

• *** indicates values less than 1 mrem

• To view all values - use Detailed Results l Numeric Table

• Total EDE = CEDE Inhalation + Cloudshine + 4-Day Groundshine

• Total Acute Bone = Bone Inhalation + Cloudshine + Period Groundshine 100

Unclassified Radiological Emergency Preparedness Program (REP)

After Action Report/Improvement Plan Grand Gulf Nuclear Station STATE OF LOUISIANA GRAND GULF NUCLEAR STATION 11/1/2011 12:00 Dose Projection Case Summary Event Type Nuclear Power Plant Location Name: Grand Gulf - Unit 1 City, county, state: Port Gibson, Claiborne, MS Lat / Long / Elev: 32.0075° N, 91.0481° W, 49 m Time zone: Central Population (2000): 69 / 1,694 / 7,626 (2 / 5 / 10 mi)

Reactor Parameters Reactor power: 3898 MWt Average fuel burn-up: 30000 MWD / MTU Containment type: BWR Mark III Containment volume: 1.53E+06 ft³ Design pressure: 15 lb/in² Design leak rate: 0.35 %/d Coolant mass: 1.92E+05 kg Assemblies in core: 800 Source Term Type: Effluent Releases - by Mixtures Shutdown: 2011/11/01 09:15 Sample taken: 2011/11/01 12:15 Release rates Noble gases: 7.08E+01 Ci/s I-131 Equivalent: 5.11E+01 Ci/s Particulates: 0.00E+00 Ci/s Release Pathway Type: Direct to Atmosphere Release height: 10. m Release timings To atmosphere start: 2011/11/01 11:30 To atmosphere duration: 0 days, and 02:00 Meteorology Type: Actual Observations Dataset name: GGNS IPX 2011 Met Data 1215 Dataset desc: Obs/fcsts for Grand Gulf - Unit 1 101

Unclassified Radiological Emergency Preparedness Program (REP)

After Action Report/Improvement Plan Grand Gulf Nuclear Station STATE OF LOUISIANA GRAND GULF NUCLEAR PLANT November 1, 2011 Summary of data Dir Speed Stab Temp at release point: Type deg mph class Precip °F 2011/11/01 11:30 Obs 067 12.0 C None 2011/11/01 11:45 Obs 067 12.0 C None 2011/11/01 12:00 Obs 067 12.0 C None 2011/11/01 12:15 Obs 067 12.0 C None Dataset options: Est. missing stability using: Wind speed, time of day, etc.

Adjust stability for consistency: No Modify winds for topography: Yes Calculations Case description: GGNS IPX 2011 Evaluated Exercise 1215 End of calculations: 2011/11/01 19:30 Start of release to atmosphere + 8 h Distance of calculation: Close-in + to 10 miles Close-in distances: 0.1, 0.2, 0.3, 0.5, 0.7, 1.0, 1.5, 2.0 miles Maximum Dose Values (rem) - Close-In Dist from release miles 0.1 0.2 0.3 0.5 0.7 1. 1.5 2.

(kilometers) (0.16) (0.32) (0.48) (0.8) (1.13) (1.61) (2.41) (3.22)

Total EDE 2.8E+02 7.5E+01 3.4E+01 1.3E+01 6.7E+00 3.3E+00 1.5E+00 8.5E-01 Thyroid CDE 7.0E+03 1.9E+03 8.5E+02 3.1E+02 1.7E+02 8.2E+01 3.8E+01 2.1E+01 Inhalation CEDE 2.1E+02 5.7E+01 2.6E+01 9.5E+00 5.0E+00 2.5E+00 1.1E+00 6.4E-01 Cloudshine 5.4E-01 2.5E-01 1.5E-01 7.6E-02 4.5E-02 2.5E-02 7.9E-03 4.4E-03 4-day Groundshine 6.9E+01 1.8E+01 8.4E+00 3.1E+00 1.6E+00 8.1E-01 3.7E-01 2.1E-01 Inter Phase 1st Yr 2.3E+02 6.1E+01 2.8E+01 1.0E+01 5.5E+00 2.7E+00 1.2E+00 7.0E-01 Inter Phase 2nd Yr *** *** *** *** *** *** *** ***

Notes:

• Doses exceeding PAGs are underlined.

• Early-Phase PAGs: TEDE - 1 rem, Thyroid (iodine) CDE - 5 rem

• Intermediate-Phase EPA PAGs: 1st year - 2 rem, 2nd year - 0.5 rem

• *** indicates values less than 1 mrem

• To view all values - use Detailed Results l Numeric Table

• Total EDE = Inhalation CEDE + Cloudshine + 4-Day Groundshine 102

Unclassified Radiological Emergency Preparedness Program (REP)

After Action Report/Improvement Plan Grand Gulf Nuclear Station STATE OF LOUISIANA GRAND GULF NUCLEAR PLANT November 1, 2011 Maximum Dose Values (rem) - To 10 mi Dist from release miles 3 4 5 7 10 (kilometers) (4.8) (6.4) (8.0) (11.3) (16.1)

Total EDE 3.0E-01 2.3E-01 1.5E-01 8.3E-02 6.1E-02 Thyroid CDE 7.4E+00 5.7E+00 3.6E+00 2.0E+00 1.5E+00 Inhalation CEDE 2.3E-01 1.7E-01 1.1E-01 6.2E-02 4.6E-02 Cloudshine 3.2E-03 2.4E-03 1.5E-03 *** ***

4-day Groundshine 7.1E-02 5.4E-02 3.4E-02 1.9E-02 1.4E-02 Inter Phase 1st Yr 2.4E-01 1.8E-01 1.2E-01 6.5E-02 4.8E-02 Inter Phase 2nd Yr *** *** *** *** ***

Notes:

• Doses exceeding PAGs are underlined.

• Early-Phase PAGs: TEDE - 1 rem, Thyroid (iodine) CDE - 5 rem

• Intermediate-Phase PAGs: 1st year - 2 rem, 2nd year - 0.5 rem

• *** indicates values less than 1 mrem

• To view all values - use Detailed Results l Numeric Table

• Total EDE = CEDE Inhalation + Cloudshine + 4-Day Groundshine

• Total Acute Bone = Bone Inhalation + Cloudshine + Period Groundshine 103

Unclassified Radiological Emergency Preparedness Program (REP)

After Action Report/Improvement Plan Grand Gulf Nuclear Station STATE OF LOUISIANA GRAND GULF NUCLEAR STATION 11/1/2011 12:15 Dose Projection Case Summary Event Type Nuclear Power Plant Location Name: Grand Gulf - Unit 1 City, county, state: Port Gibson, Claiborne, MS Lat / Long / Elev: 32.0075° N, 91.0481° W, 49 m Time zone: Central Population (2000): 69 / 1,694 / 7,626 (2 / 5 / 10 mi)

Reactor Parameters Reactor power: 3898 MWt Average fuel burn-up: 30000 MWD / MTU Containment type: BWR Mark III Containment volume: 1.53E+06 ft³ Design pressure: 15 lb/in² Design leak rate: 0.35 %/d Coolant mass: 1.92E+05 kg Assemblies in core: 800 Source Term Type: Effluent Releases - by Mixtures Shutdown: 2011/11/01 09:15 Sample taken: 2011/11/01 12:15 Release rates Noble gases: 7.08E+01 Ci/s I-131 Equivalent: 5.11E+01 Ci/s Particulates: 0.00E+00 Ci/s Release Pathway Type: Direct to Atmosphere Release height: 10. m Release timings To atmosphere start: 2011/11/01 11:30 To atmosphere duration: 0 days, and 02:00 Meteorology Type: Actual Observations Dataset name: GGNS IPX 2011 Met Data 1215 104

Unclassified Radiological Emergency Preparedness Program (REP)

After Action Report/Improvement Plan Grand Gulf Nuclear Station STATE OF LOUISIANA GRAND GULF NUCLEAR PLANT November 1, 2011 Dataset desc: Obs/fcsts for Grand Gulf - Unit 1 Summary of data Dir Speed Stab Temp at release point: Type deg mph class Precip °F 2011/11/01 11:30 Obs 067 12.0 C None 2011/11/01 11:45 Obs 067 12.0 C None 2011/11/01 12:00 Obs 067 12.0 C None 2011/11/01 12:15 Obs 067 12.0 C None Dataset options: Est. missing stability using: Wind speed, time of day, etc.

Adjust stability for consistency: No Modify winds for topography: Yes Calculations Case description: GGNS IPX 2011 Evaluated Exercise 1215 End of calculations: 2011/11/01 19:30 Start of release to atmosphere + 8 h Distance of calculation: Close-in + to 10 miles Close-in distances: 0.1, 0.2, 0.3, 0.5, 0.7, 1.0, 1.5, 2.0 miles Maximum Dose Values (rem) - Close-In Dist from release miles 0.1 0.2 0.3 0.5 0.7 1. 1.5 2.

(kilometers) (0.16) (0.32) (0.48) (0.8) (1.13) (1.61) (2.41) (3.22)

Total EDE 2.8E+02 7.5E+01 3.4E+01 1.3E+01 6.7E+00 3.3E+00 1.5E+00 8.5E-01 Thyroid CDE 7.0E+03 1.9E+03 8.5E+02 3.1E+02 1.7E+02 8.2E+01 3.8E+01 2.1E+01 Inhalation CEDE 2.1E+02 5.7E+01 2.6E+01 9.5E+00 5.0E+00 2.5E+00 1.1E+00 6.4E-01 Cloudshine 5.4E-01 2.5E-01 1.5E-01 7.6E-02 4.5E-02 2.5E-02 7.9E-03 4.4E-03 4-day Groundshine 6.9E+01 1.8E+01 8.4E+00 3.1E+00 1.6E+00 8.1E-01 3.7E-01 2.1E-01 Inter Phase 1st Yr 2.3E+02 6.1E+01 2.8E+01 1.0E+01 5.5E+00 2.7E+00 1.2E+00 7.0E-01 Inter Phase 2nd Yr *** *** *** *** *** *** *** ***

Notes:

• Doses exceeding PAGs are underlined.

• Early-Phase PAGs: TEDE - 1 rem, Thyroid (iodine) CDE - 5 rem

• Intermediate-Phase EPA PAGs: 1st year - 2 rem, 2nd year - 0.5 rem

• *** indicates values less than 1 mrem

• To view all values - use Detailed Results l Numeric Table

• Total EDE = Inhalation CEDE + Cloudshine + 4-Day Groundshine 105

Unclassified Radiological Emergency Preparedness Program (REP)

After Action Report/Improvement Plan Grand Gulf Nuclear Station STATE OF LOUISIANA GRAND GULF NUCLEAR PLANT November 1, 2011 Maximum Dose Values (rem) - To 10 mi Dist from release miles 3 4 5 7 10 (kilometers) (4.8) (6.4) (8.0) (11.3) (16.1)

Total EDE 3.0E-01 2.3E-01 1.5E-01 8.3E-02 6.1E-02 Thyroid CDE 7.4E+00 5.7E+00 3.6E+00 2.0E+00 1.5E+00 Inhalation CEDE 2.3E-01 1.7E-01 1.1E-01 6.2E-02 4.6E-02 Cloudshine 3.2E-03 2.4E-03 1.5E-03 *** ***

4-day Groundshine 7.1E-02 5.4E-02 3.4E-02 1.9E-02 1.4E-02 Inter Phase 1st Yr 2.4E-01 1.8E-01 1.2E-01 6.5E-02 4.8E-02 Inter Phase 2nd Yr *** *** *** *** ***

Notes:

• Doses exceeding PAGs are underlined.

• Early-Phase PAGs: TEDE - 1 rem, Thyroid (iodine) CDE - 5 rem

• Intermediate-Phase PAGs: 1st year - 2 rem, 2nd year - 0.5 rem

• *** indicates values less than 1 mrem

• To view all values - use Detailed Results l Numeric Table

• Total EDE = CEDE Inhalation + Cloudshine + 4-Day Groundshine

• Total Acute Bone = Bone Inhalation + Cloudshine + Period Groundshine 106

Unclassified Radiological Emergency Preparedness Program (REP)

After Action Report/Improvement Plan Grand Gulf Nuclear Station STATE OF LOUISIANA GRAND GULF NUCLEAR STATION 11/1/2011 12:30 Dose Projection Case Summary Event Type Nuclear Power Plant Location Name: Grand Gulf - Unit 1 City, county, state: Port Gibson, Claiborne, MS Lat / Long / Elev: 32.0075° N, 91.0481° W, 49 m Time zone: Central Population (2000): 69 / 1,694 / 7,626 (2 / 5 / 10 mi)

Reactor Parameters Reactor power: 3898 MWt Average fuel burn-up: 30000 MWD / MTU Containment type: BWR Mark III Containment volume: 1.53E+06 ft³ Design pressure: 15 lb/in² Design leak rate: 0.35 %/d Coolant mass: 1.92E+05 kg Assemblies in core: 800 Source Term Type: Effluent Releases - by Mixtures Shutdown: 2011/11/01 09:15 Sample taken: 2011/11/01 12:30 Release rates Noble gases: 6.32E+01 Ci/s I-131 Equivalent: 4.57E+01 Ci/s Particulates: 0.00E+00 Ci/s Release Pathway Type: Direct to Atmosphere Release height: 10. m Release timings To atmosphere start: 2011/11/01 11:30 To atmosphere duration: 0 days, and 02:00 Meteorology Type: Actual Observations 107

Unclassified Radiological Emergency Preparedness Program (REP)

After Action Report/Improvement Plan Grand Gulf Nuclear Station STATE OF LOUISIANA GRAND GULF NUCLEAR PLANT November 1, 2011 Dataset name: GGNS IPX 2011 Met Data 1230 Dataset desc: Obs/fcsts for Grand Gulf - Unit 1 Summary of data Dir Speed Stab Temp at release point: Type deg mph class Precip °F 2011/11/01 11:30 Obs 067 12.0 C None 2011/11/01 11:45 Obs 067 12.0 C None 2011/11/01 12:00 Obs 067 12.0 C None 2011/11/01 12:15 Obs 067 12.0 C None 2011/11/01 12:30 Obs 045 12.0 C None Dataset options: Est. missing stability using: Wind speed, time of day, etc.

Adjust stability for consistency: No Modify winds for topography: Yes Calculations Case description: GGNS IPX 2011 Evaluated Exercise 1230 End of calculations: 2011/11/01 19:30 Start of release to atmosphere + 8 h Distance of calculation: Close-in + to 10 miles Close-in distances: 0.1, 0.2, 0.3, 0.5, 0.7, 1.0, 1.5, 2.0 miles Maximum Dose Values (rem) - Close-In Dist from release miles 0.1 0.2 0.3 0.5 0.7 1. 1.5 2.

(kilometers) (0.16) (0.32) (0.48) (0.8) (1.13) (1.61) (2.41) (3.22)

Total EDE 1.8E+02 4.7E+01 2.2E+01 7.9E+00 4.2E+00 2.1E+00 9.4E-01 5.3E-01 Thyroid CDE 4.4E+03 1.2E+03 5.3E+02 2.0E+02 1.0E+02 5.1E+01 2.3E+01 1.3E+01 Inhalation CEDE 1.3E+02 3.6E+01 1.6E+01 6.0E+00 3.1E+00 1.5E+00 7.1E-01 4.0E-01 Cloudshine 4.2E-01 2.0E-01 1.0E-01 5.3E-02 3.0E-02 1.6E-02 4.8E-03 2.7E-03 4-day Groundshine 4.4E+01 1.2E+01 5.3E+00 1.9E+00 1.0E+00 5.0E-01 2.3E-01 1.3E-01 Inter Phase 1st Yr 1.5E+02 3.9E+01 1.8E+01 6.5E+00 3.4E+00 1.7E+00 7.7E-01 4.3E-01 Inter Phase 2nd Yr *** *** *** *** *** *** *** ***

Notes:

• Doses exceeding PAGs are underlined.

• Early-Phase PAGs: TEDE - 1 rem, Thyroid (iodine) CDE - 5 rem

• Intermediate-Phase EPA PAGs: 1st year - 2 rem, 2nd year - 0.5 rem

• *** indicates values less than 1 mrem

• To view all values - use Detailed Results l Numeric Table

• Total EDE = Inhalation CEDE + Cloudshine + 4-Day Groundshine Maximum Dose Values (rem) - To 10 mi 108

Unclassified Radiological Emergency Preparedness Program (REP)

After Action Report/Improvement Plan Grand Gulf Nuclear Station STATE OF LOUISIANA GRAND GULF NUCLEAR PLANT November 1, 2011 Dist from release miles 3 4 5 7 10 (kilometers) (4.8) (6.4) (8.0) (11.3) (16.1)

Total EDE 2.2E-01 1.3E-01 9.0E-02 5.4E-02 4.2E-02 Thyroid CDE 5.4E+00 3.3E+00 2.2E+00 1.3E+00 1.0E+00 Inhalation CEDE 1.6E-01 1.0E-01 6.8E-02 4.1E-02 3.2E-02 Cloudshine 2.3E-03 1.4E-03 *** *** ***

4-day Groundshine 5.1E-02 3.1E-02 2.1E-02 1.3E-02 9.7E-03 Inter Phase 1st Yr 1.7E-01 1.0E-01 7.1E-02 4.2E-02 3.3E-02 Inter Phase 2nd Yr *** *** *** *** ***

Notes:

• Doses exceeding PAGs are underlined.

• Early-Phase PAGs: TEDE - 1 rem, Thyroid (iodine) CDE - 5 rem

• Intermediate-Phase PAGs: 1st year - 2 rem, 2nd year - 0.5 rem

• *** indicates values less than 1 mrem

• To view all values - use Detailed Results l Numeric Table

• Total EDE = CEDE Inhalation + Cloudshine + 4-Day Groundshine

• Total Acute Bone = Bone Inhalation + Cloudshine + Period Groundshine 109

Unclassified Radiological Emergency Preparedness Program (REP)

After Action Report/Improvement Plan Grand Gulf Nuclear Station STATE OF LOUISIANA GRAND GULF NUCLEAR STATION 11/1/2011 12:45 Dose Projection Case Summary Event Type Nuclear Power Plant Location Name: Grand Gulf - Unit 1 City, county, state: Port Gibson, Claiborne, MS Lat / Long / Elev: 32.0075° N, 91.0481° W, 49 m Time zone: Central Population (2000): 69 / 1,694 / 7,626 (2 / 5 / 10 mi)

Reactor Parameters Reactor power: 3898 MWt Average fuel burn-up: 30000 MWD / MTU Containment type: BWR Mark III Containment volume: 1.53E+06 ft³ Design pressure: 15 lb/in² Design leak rate: 0.35 %/d Coolant mass: 1.92E+05 kg Assemblies in core: 800 Source Term Type: Effluent Releases - by Mixtures Shutdown: 2011/11/01 09:15 Sample taken: 2011/11/01 12:45 Release rates Noble gases: 8.98E-01 Ci/s I-131 Equivalent: 6.46E-01 Ci/s Particulates: 0.00E+00 Ci/s Release Pathway Type: Direct to Atmosphere Release height: 10. m Release timings To atmosphere start: 2011/11/01 11:30 To atmosphere duration: 0 days, and 02:00 Meteorology Type: Actual Observations Dataset name: GGNS IPX 2011 Met Data 1245 Dataset desc: Obs/fcsts for Grand Gulf - Unit 1 110

Unclassified Radiological Emergency Preparedness Program (REP)

After Action Report/Improvement Plan Grand Gulf Nuclear Station STATE OF LOUISIANA GRAND GULF NUCLEAR PLANT November 1, 2011 Summary of data Dir Speed Stab Temp at release point: Type deg mph class Precip °F 2011/11/01 11:30 Obs 067 12.0 C None 2011/11/01 11:45 Obs 067 12.0 C None 2011/11/01 12:00 Obs 067 12.0 C None 2011/11/01 12:15 Obs 067 12.0 C None 2011/11/01 12:30 Obs 045 12.0 C None 2011/11/01 12:45 Obs 045 12.0 C None Dataset options: Est. missing stability using: Wind speed, time of day, etc.

Adjust stability for consistency: No Modify winds for topography: Yes Calculations Case description: GGNS IPX 2011 Evaluated Exercise 1245 End of calculations: 2011/11/01 19:30 Start of release to atmosphere + 8 h Distance of calculation: Close-in + to 10 miles Close-in distances: 0.1, 0.2, 0.3, 0.5, 0.7, 1.0, 1.5, 2.0 miles Maximum Dose Values (rem) - Close-In Dist from release miles 0.1 0.2 0.3 0.5 0.7 1. 1.5 2.

(kilometers) (0.16) (0.32) (0.48) (0.8) (1.13) (1.61) (2.41) (3.22)

Total EDE 2.5E+00 6.7E-01 3.1E-01 1.1E-01 5.9E-02 2.9E-02 1.3E-02 7.4E-03 Thyroid CDE 6.2E+01 1.6E+01 7.5E+00 2.8E+00 1.5E+00 7.2E-01 3.3E-01 1.8E-01 Inhalation CEDE 1.9E+00 5.0E-01 2.3E-01 8.4E-02 4.4E-02 2.2E-02 1.0E-02 5.6E-03 Cloudshine 6.0E-03 2.8E-03 1.4E-03 *** *** *** *** ***

4-day Groundshine 6.2E-01 1.6E-01 7.4E-02 2.7E-02 1.4E-02 7.1E-03 3.2E-03 1.8E-03 Inter Phase 1st Yr 2.1E+00 5.5E-01 2.5E-01 9.2E-02 4.8E-02 2.4E-02 1.1E-02 6.1E-03 Inter Phase 2nd Yr *** *** *** *** *** *** *** ***

Notes:

• Doses exceeding PAGs are underlined.

• Early-Phase PAGs: TEDE - 1 rem, Thyroid (iodine) CDE - 5 rem

• Intermediate-Phase EPA PAGs: 1st year - 2 rem, 2nd year - 0.5 rem

• *** indicates values less than 1 mrem

• To view all values - use Detailed Results l Numeric Table

• Total EDE = Inhalation CEDE + Cloudshine + 4-Day Groundshine 111

Unclassified Radiological Emergency Preparedness Program (REP)

After Action Report/Improvement Plan Grand Gulf Nuclear Station STATE OF LOUISIANA GRAND GULF NUCLEAR PLANT November 1, 2011 Maximum Dose Values (rem) - To 10 mi Dist from release miles 3 4 5 7 10 (kilometers) (4.8) (6.4) (8.0) (11.3) (16.1)

Total EDE 3.1E-03 1.9E-03 1.3E-03 *** ***

Thyroid CDE 7.6E-02 4.6E-02 3.1E-02 1.9E-02 1.5E-02 Inhalation CEDE 2.3E-03 1.4E-03 *** *** ***

Cloudshine *** *** *** *** ***

4-day Groundshine *** *** *** *** ***

Inter Phase 1st Yr 2.4E-03 1.5E-03 *** *** ***

Inter Phase 2nd Yr *** *** *** *** ***

Notes:

• Doses exceeding PAGs are underlined.

• Early-Phase PAGs: TEDE - 1 rem, Thyroid (iodine) CDE - 5 rem

• Intermediate-Phase PAGs: 1st year - 2 rem, 2nd year - 0.5 rem

• *** indicates values less than 1 mrem

• To view all values - use Detailed Results l Numeric Table

• Total EDE = CEDE Inhalation + Cloudshine + 4-Day Groundshine

• Total Acute Bone = Bone Inhalation + Cloudshine + Period Groundshine 112

Unclassified Radiological Emergency Preparedness Program (REP)

After Action Report/Improvement Plan Grand Gulf Nuclear Station STATE OF LOUISIANA GRAND GULF NUCLEAR STATION 11/1/2011 13:00 Dose Projection Case Summary Event Type Nuclear Power Plant Location Name: Grand Gulf - Unit 1 City, county, state: Port Gibson, Claiborne, MS Lat / Long / Elev: 32.0075° N, 91.0481° W, 49 m Time zone: Central Population (2000): 69 / 1,694 / 7,626 (2 / 5 / 10 mi)

Reactor Parameters Reactor power: 3898 MWt Average fuel burn-up: 30000 MWD / MTU Containment type: BWR Mark III Containment volume: 1.53E+06 ft³ Design pressure: 15 lb/in² Design leak rate: 0.35 %/d Coolant mass: 1.92E+05 kg Assemblies in core: 800 Source Term Type: Effluent Releases - by Mixtures Shutdown: 2011/11/01 09:15 Sample taken: 2011/11/01 13:00 Release rates Noble gases: 9.22E-04 Ci/s I-131 Equivalent: 6.64E-04 Ci/s Particulates: 0.00E+00 Ci/s Release Pathway Type: Direct to Atmosphere Release height: 10. m Release timings To atmosphere start: 2011/11/01 11:30 To atmosphere stop: 2011/11/01 13:00 Meteorology Type: Actual Observations Dataset name: GGNS IPX 2011 Met Data 1245 Dataset desc: Obs/fcsts for Grand Gulf - Unit 1 113

Unclassified Radiological Emergency Preparedness Program (REP)

After Action Report/Improvement Plan Grand Gulf Nuclear Station STATE OF LOUISIANA GRAND GULF NUCLEAR PLANT November 1, 2011 Summary of data Dir Speed Stab Temp at release point: Type deg mph class Precip °F 2011/11/01 11:30 Obs 067 12.0 C None 2011/11/01 11:45 Obs 067 12.0 C None 2011/11/01 12:00 Obs 067 12.0 C None 2011/11/01 12:15 Obs 067 12.0 C None 2011/11/01 12:30 Obs 045 12.0 C None 2011/11/01 12:45 Obs 045 12.0 C None Dataset options: Est. missing stability using: Wind speed, time of day, etc.

Adjust stability for consistency: No Modify winds for topography: Yes Calculations Case description: GGNS IPX 2011 Evaluated Exercise 1300 End of calculations: 2011/11/01 19:30 Start of release to atmosphere + 8 h Distance of calculation: Close-in + to 10 miles Close-in distances: 0.1, 0.2, 0.3, 0.5, 0.7, 1.0, 1.5, 2.0 miles Maximum Dose Values (rem) - Close-In Dist from release miles 0.1 0.2 0.3 0.5 0.7 1. 1.5 2.

(kilometers) (0.16) (0.32) (0.48) (0.8) (1.13) (1.61) (2.41) (3.22)

Total EDE 2.1E-03 *** *** *** *** *** *** ***

Thyroid CDE 5.1E-02 1.3E-02 6.2E-03 2.3E-03 1.2E-03 *** *** ***

Inhalation CEDE 1.5E-03 *** *** *** *** *** *** ***

Cloudshine *** *** *** *** *** *** *** ***

4-day Groundshine *** *** *** *** *** *** *** ***

Inter Phase 1st Yr 1.7E-03 *** *** *** *** *** *** ***

Inter Phase 2nd Yr *** *** *** *** *** *** *** ***

Notes:

• Doses exceeding PAGs are underlined.

• Early-Phase PAGs: TEDE - 1 rem, Thyroid (iodine) CDE - 5 rem

• Intermediate-Phase EPA PAGs: 1st year - 2 rem, 2nd year - 0.5 rem

• *** indicates values less than 1 mrem

• To view all values - use Detailed Results l Numeric Table

• Total EDE = Inhalation CEDE + Cloudshine + 4-Day Groundshine Maximum Dose Values (rem) - To 10 mi 114

Unclassified Radiological Emergency Preparedness Program (REP)

After Action Report/Improvement Plan Grand Gulf Nuclear Station STATE OF LOUISIANA GRAND GULF NUCLEAR PLANT November 1, 2011 Dist from release miles 3 4 5 7 10 (kilometers) (4.8) (6.4) (8.0) (11.3) (16.1)

Total EDE *** *** *** *** ***

Thyroid CDE *** *** *** *** ***

Inhalation CEDE *** *** *** *** ***

Cloudshine *** *** *** *** ***

4-day Groundshine *** *** *** *** ***

Inter Phase 1st Yr *** *** *** *** ***

Inter Phase 2nd Yr *** *** *** *** ***

Notes:

• Doses exceeding PAGs are underlined.

• Early-Phase PAGs: TEDE - 1 rem, Thyroid (iodine) CDE - 5 rem

• Intermediate-Phase PAGs: 1st year - 2 rem, 2nd year - 0.5 rem

• *** indicates values less than 1 mrem

• To view all values - use Detailed Results l Numeric Table

• Total EDE = CEDE Inhalation + Cloudshine + 4-Day Groundshine

• Total Acute Bone = Bone Inhalation + Cloudshine + Period Groundshine 115

Unclassified Radiological Emergency Preparedness Program (REP)

After Action Report/Improvement Plan Grand Gulf Nuclear Station STATE OF LOUISIANA GRAND GULF NUCLEAR STATION 11/1/2011 ATTACHMENT F LDEQ FIELD MONITORING TEAM DATA 116

Unclassified Radiological Emergency Preparedness Program (REP)

After Action Report/Improvement Plan Grand Gulf Nuclear Station STATE OF LOUISIANA GRAND GULF NUCLEAR STATION 11/1/2011 Louisiana Department of Environmental Quality Field Monitoring Team Data TIME: 11:30 through 11:45 CLASS C DWD WLOWMR WLCWMR GLOWMR GLCWMR ISCTOT miles mR/hr mR/hr mR/hr mR/hr counts 0.4 2.31E+01 2.08E+01 2.31E+01 2.08E+01 6.02E+06 2.0 1.49E+00 1.34E+00 1.49E+00 1.34E+00 3.89E+05 2.5 9.29E-01 8.36E-01 9.29E-01 8.36E-01 2.43E+05 3.0 7.27E-01 6.54E-01 7.27E-01 6.54E-01 1.90E+05 3.5 BKG BKG BKG BKG BKG 4.0 BKG BKG BKG BKG BKG 4.5 BKG BKG BKG BKG BKG 5.0 BKG BKG BKG BKG BKG 5.5 BKG BKG BKG BKG BKG 6.0 BKG BKG BKG BKG BKG 6.5 BKG BKG BKG BKG BKG 7.0 BKG BKG BKG BKG BKG 7.5 BKG BKG BKG BKG BKG 8.0 BKG BKG BKG BKG BKG 8.5 BKG BKG BKG BKG BKG 9.0 BKG BKG BKG BKG BKG 9.5 BKG BKG BKG BKG BKG 10.0 BKG BKG BKG BKG BKG DWD= Downwind Distance (miles)

WLOWMR= Waist Level Open Window Meter Reading WLCWMR= Waist Level Closed Window Meter Reading GLOWMR= Ground Level Open Window Meter Reading GLCWMR= Ground Level Closed Window Meter Reading ISCTOT= Iodine Sample Cartridge Total Count BKG= Background 117

Unclassified Radiological Emergency Preparedness Program (REP)

After Action Report/Improvement Plan Grand Gulf Nuclear Station STATE OF LOUISIANA GRAND GULF NUCLEAR STATION 11/1/2011 Louisiana Department of Environmental Quality Field Monitoring Team Data TIME: 11:45 through 12:00 CLASS C DWD WLOWMR WLCWMR GLOWMR GLCWMR ISCTOT miles mR/hr mR/hr mR/hr mR/hr counts 0.4 1.75E+02 1.58E+02 1.75E+02 1.58E+02 4.83E+07 2.0 1.13E+01 1.02E+01 1.13E+01 1.02E+01 3.12E+06 2.5 7.06E+00 6.35E+00 7.06E+00 6.35E+00 1.95E+06 3.0 5.52E+00 4.97E+00 5.52E+00 4.97E+00 1.52E+06 3.5 5.36E-01 4.83E-01 5.36E-01 4.83E-01 1.48E+05 4.0 4.23E-01 3.81E-01 4.23E-01 3.81E-01 1.17E+05 4.5 3.44E-01 3.10E-01 3.44E-01 3.10E-01 9.49E+04 5.0 2.85E-01 2.56E-01 2.85E-01 2.56E-01 7.85E+04 5.5 2.41E-01 2.17E-01 2.41E-01 2.17E-01 6.65E+04 6.0 2.07E-01 1.86E-01 2.07E-01 1.86E-01 5.70E+04 6.5 BKG BKG BKG BKG BKG 7.0 BKG BKG BKG BKG BKG 7.5 BKG BKG BKG BKG BKG 8.0 BKG BKG BKG BKG BKG 8.5 BKG BKG BKG BKG BKG 9.0 BKG BKG BKG BKG BKG 9.5 BKG BKG BKG BKG BKG 10.0 BKG BKG BKG BKG BKG DWD= Downwind Distance (miles)

WLOWMR= Waist Level Open Window Meter Reading WLCWMR= Waist Level Closed Window Meter Reading GLOWMR= Ground Level Open Window Meter Reading GLCWMR= Ground Level Closed Window Meter Reading ISCTOT= Iodine Sample Cartridge Total Count BKG= Background 118

Unclassified Radiological Emergency Preparedness Program (REP)

After Action Report/Improvement Plan Grand Gulf Nuclear Station STATE OF LOUISIANA GRAND GULF NUCLEAR STATION 11/1/2011 Louisiana Department of Environmental Quality Field Monitoring Team Data TIME: 12:00 through 12:15 CLASS C DWD WLOWMR WLCWMR GLOWMR GLCWMR ISCTOT miles mR/hr mR/hr mR/hr mR/hr counts 0.4 6.96E+02 6.26E+02 6.96E+02 6.26E+02 2.02E+08 2.0 4.50E+01 4.05E+01 4.50E+01 4.05E+01 1.30E+07 2.5 2.80E+01 2.52E+01 2.80E+01 2.52E+01 8.13E+06 3.0 2.19E+01 1.97E+01 2.19E+01 1.97E+01 6.36E+06 3.5 4.08E+00 3.67E+00 4.08E+00 3.67E+00 1.18E+06 4.0 3.22E+00 2.90E+00 3.22E+00 2.90E+00 9.34E+05 4.5 2.62E+00 2.36E+00 2.62E+00 2.36E+00 7.60E+05 5.0 2.17E+00 1.95E+00 2.17E+00 1.95E+00 6.29E+05 5.5 1.84E+00 1.65E+00 1.84E+00 1.65E+00 5.33E+05 6.0 1.57E+00 1.42E+00 1.57E+00 1.42E+00 4.56E+05 6.5 1.74E-01 1.56E-01 1.74E-01 1.56E-01 5.04E+04 7.0 1.53E-01 1.37E-01 1.53E-01 1.37E-01 4.43E+04 7.5 1.35E-01 1.22E-01 1.35E-01 1.22E-01 3.93E+04 8.0 1.21E-01 1.09E-01 1.21E-01 1.09E-01 3.51E+04 8.5 1.08E-01 9.76E-02 1.08E-01 9.76E-02 3.15E+04 9.0 9.79E-02 8.81E-02 9.79E-02 8.81E-02 2.84E+04 9.5 BKG BKG BKG BKG BKG 10.0 BKG BKG BKG BKG BKG DWD= Downwind Distance (miles)

WLOWMR= Waist Level Open Window Meter Reading WLCWMR= Waist Level Closed Window Meter Reading GLOWMR= Ground Level Open Window Meter Reading GLCWMR= Ground Level Closed Window Meter Reading ISCTOT= Iodine Sample Cartridge Total Count BKG= Background 119

Unclassified Radiological Emergency Preparedness Program (REP)

After Action Report/Improvement Plan Grand Gulf Nuclear Station STATE OF LOUISIANA GRAND GULF NUCLEAR STATION 11/1/2011 Louisiana Department of Environmental Quality Field Monitoring Team Data TIME: 12:15 through 12:30 CLASS C DWD WLOWMR WLCWMR GLOWMR GLCWMR ISCTOT miles mR/hr mR/hr mR/hr mR/hr counts 0.4 8.32E+02 7.49E+02 8.32E+02 7.49E+02 2.53E+08 2.0 5.38E+01 4.84E+01 5.38E+01 4.84E+01 1.64E+07 2.5 3.35E+01 3.02E+01 3.35E+01 3.02E+01 1.02E+07 3.0 2.62E+01 2.36E+01 2.62E+01 2.36E+01 7.99E+06 3.5 1.62E+01 1.46E+01 1.62E+01 1.46E+01 4.94E+06 4.0 1.28E+01 1.15E+01 1.28E+01 1.15E+01 3.90E+06 4.5 1.04E+01 9.37E+00 1.04E+01 9.37E+00 3.17E+06 5.0 8.62E+00 7.76E+00 8.62E+00 7.76E+00 2.62E+06 5.5 7.30E+00 6.57E+00 7.30E+00 6.57E+00 2.22E+06 6.0 6.25E+00 5.63E+00 6.25E+00 5.63E+00 1.90E+06 6.5 1.32E+00 1.19E+00 1.32E+00 1.19E+00 4.03E+05 7.0 1.16E+00 1.05E+00 1.16E+00 1.05E+00 3.54E+05 7.5 1.03E+00 9.27E-01 1.03E+00 9.27E-01 3.14E+05 8.0 9.21E-01 8.29E-01 9.21E-01 8.29E-01 2.80E+05 8.5 8.26E-01 7.43E-01 8.26E-01 7.43E-01 2.52E+05 9.0 7.45E-01 6.71E-01 7.45E-01 6.71E-01 2.27E+05 9.5 8.71E-02 7.84E-02 8.71E-02 7.84E-02 2.65E+04 10.0 7.96E-02 7.17E-02 7.96E-02 7.17E-02 2.42E+04 DWD= Downwind Distance (miles)

WLOWMR= Waist Level Open Window Meter Reading WLCWMR= Waist Level Closed Window Meter Reading GLOWMR= Ground Level Open Window Meter Reading GLCWMR= Ground Level Closed Window Meter Reading ISCTOT= Iodine Sample Cartridge Total Count BKG= Background 120

Unclassified Radiological Emergency Preparedness Program (REP)

After Action Report/Improvement Plan Grand Gulf Nuclear Station STATE OF LOUISIANA GRAND GULF NUCLEAR STATION 11/1/2011 Louisiana Department of Environmental Quality Field Monitoring Team Data TIME: 12:30 through 12:45 CLASS C DWD WLOWMR WLCWMR GLOWMR GLCWMR ISCTOT miles mR/hr mR/hr mR/hr mR/hr counts 0.4 7.23E+02 6.51E+02 7.23E+02 6.51E+02 2.31E+08 2.0 4.67E+01 4.21E+01 4.67E+01 4.21E+01 1.49E+07 2.5 2.91E+01 2.62E+01 2.91E+01 2.62E+01 9.29E+06 3.0 2.28E+01 2.05E+01 2.28E+01 2.05E+01 7.27E+06 3.5 1.94E+01 1.75E+01 1.94E+01 1.75E+01 6.20E+06 4.0 1.53E+01 1.38E+01 1.53E+01 1.38E+01 4.89E+06 4.5 1.25E+01 1.12E+01 1.25E+01 1.12E+01 3.98E+06 5.0 1.03E+01 9.29E+00 1.03E+01 9.29E+00 3.29E+06 5.5 8.75E+00 7.87E+00 8.75E+00 7.87E+00 2.79E+06 6.0 7.49E+00 6.74E+00 7.49E+00 6.74E+00 2.39E+06 6.5 5.27E+00 4.74E+00 5.27E+00 4.74E+00 1.68E+06 7.0 4.63E+00 4.17E+00 4.63E+00 4.17E+00 1.48E+06 7.5 4.10E+00 3.69E+00 4.10E+00 3.69E+00 1.31E+06 8.0 3.67E+00 3.30E+00 3.67E+00 3.30E+00 1.17E+06 8.5 3.29E+00 2.96E+00 3.29E+00 2.96E+00 1.05E+06 9.0 2.97E+00 2.67E+00 2.97E+00 2.67E+00 9.47E+05 9.5 6.64E-01 5.98E-01 6.64E-01 5.98E-01 2.12E+05 10.0 6.07E-01 5.46E-01 6.07E-01 5.46E-01 1.94E+05 DWD= Downwind Distance (miles)

WLOWMR= Waist Level Open Window Meter Reading WLCWMR= Waist Level Closed Window Meter Reading GLOWMR= Ground Level Open Window Meter Reading GLCWMR= Ground Level Closed Window Meter Reading ISCTOT= Iodine Sample Cartridge Total Count BKG= Background 121

Unclassified Radiological Emergency Preparedness Program (REP)

After Action Report/Improvement Plan Grand Gulf Nuclear Station STATE OF LOUISIANA GRAND GULF NUCLEAR STATION 11/1/2011 Louisiana Department of Environmental Quality Field Monitoring Team Data TIME: 12:45 through 13:00 CLASS C DWD WLOWMR WLCWMR GLOWMR GLCWMR ISCTOT miles mR/hr mR/hr mR/hr mR/hr counts 0.4 9.98E+00 8.98E+00 9.98E+00 8.98E+00 3.33E+06 2.0 6.45E-01 5.81E-01 6.45E-01 5.81E-01 2.15E+05 2.5 4.02E-01 3.62E-01 4.02E-01 3.62E-01 1.34E+05 3.0 3.15E-01 2.83E-01 3.15E-01 2.83E-01 1.05E+05 3.5 1.69E+01 1.52E+01 1.69E+01 1.52E+01 5.63E+06 4.0 1.33E+01 1.20E+01 1.33E+01 1.20E+01 4.45E+06 4.5 1.09E+01 9.77E+00 1.09E+01 9.77E+00 3.62E+06 5.0 8.98E+00 8.08E+00 8.98E+00 8.08E+00 2.99E+06 5.5 7.61E+00 6.85E+00 7.61E+00 6.85E+00 2.54E+06 6.0 6.52E+00 5.87E+00 6.52E+00 5.87E+00 2.17E+06 6.5 6.32E+00 5.69E+00 6.32E+00 5.69E+00 2.11E+06 7.0 5.55E+00 4.99E+00 5.55E+00 4.99E+00 1.85E+06 7.5 4.92E+00 4.43E+00 4.92E+00 4.43E+00 1.64E+06 8.0 4.40E+00 3.96E+00 4.40E+00 3.96E+00 1.47E+06 8.5 3.94E+00 3.55E+00 3.94E+00 3.55E+00 1.31E+06 9.0 3.56E+00 3.20E+00 3.56E+00 3.20E+00 1.19E+06 9.5 2.65E+00 2.38E+00 2.65E+00 2.38E+00 8.82E+05 10.0 2.42E+00 2.18E+00 2.42E+00 2.18E+00 8.07E+05 DWD= Downwind Distance (miles)

WLOWMR= Waist Level Open Window Meter Reading WLCWMR= Waist Level Closed Window Meter Reading GLOWMR= Ground Level Open Window Meter Reading GLCWMR= Ground Level Closed Window Meter Reading ISCTOT= Iodine Sample Cartridge Total Count BKG= Background 122

Unclassified Radiological Emergency Preparedness Program (REP)

After Action Report/Improvement Plan Grand Gulf Nuclear Station STATE OF LOUISIANA GRAND GULF NUCLEAR STATION 11/1/2011 Louisiana Department of Environmental Quality Field Monitoring Team Data TIME: 13:00 through 13:15 CLASS C DWD WLOWMR WLCWMR GLOWMR GLCWMR ISCTOT miles mR/hr mR/hr mR/hr mR/hr counts 0.4 BKG BKG BKG BKG BKG 2.0 BKG BKG BKG BKG BKG 2.5 BKG BKG BKG BKG BKG 3.0 3.15E-04 2.84E-04 3.15E-04 2.84E-04 1.10E+02 3.5 2.34E-01 2.10E-01 2.34E-01 2.10E-01 8.12E+04 4.0 1.84E-01 1.66E-01 1.84E-01 1.66E-01 6.41E+04 4.5 1.50E-01 1.35E-01 1.50E-01 1.35E-01 5.21E+04 5.0 1.24E-01 1.12E-01 1.24E-01 1.12E-01 4.31E+04 5.5 1.05E-01 9.46E-02 1.05E-01 9.46E-02 3.65E+04 6.0 9.01E-02 8.11E-02 9.01E-02 8.11E-02 3.13E+04 6.5 5.50E+00 4.95E+00 5.50E+00 4.95E+00 1.91E+06 7.0 4.83E+00 4.35E+00 4.83E+00 4.35E+00 1.68E+06 7.5 4.29E+00 3.86E+00 4.29E+00 3.86E+00 1.49E+06 8.0 3.83E+00 3.45E+00 3.83E+00 3.45E+00 1.33E+06 8.5 3.43E+00 3.09E+00 3.43E+00 3.09E+00 1.19E+06 9.0 3.10E+00 2.79E+00 3.10E+00 2.79E+00 1.08E+06 9.5 3.18E+00 2.86E+00 3.18E+00 2.86E+00 1.10E+06 10.0 2.91E+00 2.62E+00 2.91E+00 2.62E+00 1.01E+06 DWD= Downwind Distance (miles)

WLOWMR= Waist Level Open Window Meter Reading WLCWMR= Waist Level Closed Window Meter Reading GLOWMR= Ground Level Open Window Meter Reading GLCWMR= Ground Level Closed Window Meter Reading ISCTOT= Iodine Sample Cartridge Total Count BKG= Background 123

Unclassified Radiological Emergency Preparedness Program (REP)

After Action Report/Improvement Plan Grand Gulf Nuclear Station STATE OF LOUISIANA GRAND GULF NUCLEAR STATION 11/1/2011 Louisiana Department of Environmental Quality Field Monitoring Team Data TIME: 13:15 through 13:30 CLASS C DWD WLOWMR WLCWMR GLOWMR GLCWMR ISCTOT miles mR/hr mR/hr mR/hr mR/hr counts 0.4 BKG BKG BKG BKG BKG 2.0 BKG BKG BKG BKG BKG 2.5 BKG BKG BKG BKG BKG 3.0 BKG BKG BKG BKG BKG 3.5 BKG BKG BKG BKG BKG 4.0 BKG BKG BKG BKG BKG 4.5 BKG BKG BKG BKG BKG 5.0 BKG BKG BKG BKG BKG 5.5 BKG BKG BKG BKG BKG 6.0 9.03E-05 8.13E-05 9.03E-05 8.13E-05 3.27E+01 6.5 7.61E-02 6.85E-02 7.61E-02 6.85E-02 2.75E+04 7.0 6.69E-02 6.02E-02 6.69E-02 6.02E-02 2.42E+04 7.5 5.93E-02 5.34E-02 5.93E-02 5.34E-02 2.15E+04 8.0 5.30E-02 4.77E-02 5.30E-02 4.77E-02 1.92E+04 8.5 4.75E-02 4.28E-02 4.75E-02 4.28E-02 1.72E+04 9.0 4.29E-02 3.86E-02 4.29E-02 3.86E-02 1.55E+04 9.5 2.77E+00 2.49E+00 2.77E+00 2.49E+00 1.00E+06 10.0 2.53E+00 2.28E+00 2.53E+00 2.28E+00 9.17E+05 DWD= Downwind Distance (miles)

WLOWMR= Waist Level Open Window Meter Reading WLCWMR= Waist Level Closed Window Meter Reading GLOWMR= Ground Level Open Window Meter Reading GLCWMR= Ground Level Closed Window Meter Reading ISCTOT= Iodine Sample Cartridge Total Count BKG= Background 124

Unclassified Radiological Emergency Preparedness Program (REP)

After Action Report/Improvement Plan Grand Gulf Nuclear Station STATE OF LOUISIANA GRAND GULF NUCLEAR STATION 11/1/2011 Louisiana Department of Environmental Quality Field Monitoring Team Data TIME: 13:30 through 13:45 CLASS C DWD WLOWMR WLCWMR GLOWMR GLCWMR ISCTOT miles mR/hr mR/hr mR/hr mR/hr counts 0.4 BKG BKG BKG BKG BKG 2.0 BKG BKG BKG BKG BKG 2.5 BKG BKG BKG BKG BKG 3.0 BKG BKG BKG BKG BKG 3.5 BKG BKG BKG BKG BKG 4.0 BKG BKG BKG BKG BKG 4.5 BKG BKG BKG BKG BKG 5.0 BKG BKG BKG BKG BKG 5.5 BKG BKG BKG BKG BKG 6.0 BKG BKG BKG BKG BKG 6.5 BKG BKG BKG BKG BKG 7.0 BKG BKG BKG BKG BKG 7.5 BKG BKG BKG BKG BKG 8.0 BKG BKG BKG BKG BKG 8.5 BKG BKG BKG BKG BKG 9.0 4.30E-05 3.87E-05 4.30E-05 3.87E-05 1.62E+01 9.5 3.84E-02 3.45E-02 3.84E-02 3.45E-02 1.44E+04 10.0 3.51E-02 3.16E-02 3.51E-02 3.16E-02 1.32E+04 DWD= Downwind Distance (miles)

WLOWMR= Waist Level Open Window Meter Reading WLCWMR= Waist Level Closed Window Meter Reading GLOWMR= Ground Level Open Window Meter Reading GLCWMR= Ground Level Closed Window Meter Reading ISCTOT= Iodine Sample Cartridge Total Count BKG= Background 125

Unclassified Radiological Emergency Preparedness Program (REP)

After Action Report/Improvement Plan Grand Gulf Nuclear Station STATE OF LOUISIANA GRAND GULF NUCLEAR STATION 11/1/2011 Louisiana Department of Environmental Quality Field Monitoring Team Data TIME: 13:45 through 14:00 CLASS C DWD WLOWMR WLCWMR GLOWMR GLCWMR ISCTOT miles mR/hr mR/hr mR/hr mR/hr counts 0.4 BKG BKG BKG BKG BKG 2.0 BKG BKG BKG BKG BKG 2.5 BKG BKG BKG BKG BKG 3.0 BKG BKG BKG BKG BKG 3.5 BKG BKG BKG BKG BKG 4.0 BKG BKG BKG BKG BKG 4.5 BKG BKG BKG BKG BKG 5.0 BKG BKG BKG BKG BKG 5.5 BKG BKG BKG BKG BKG 6.0 BKG BKG BKG BKG BKG 6.5 BKG BKG BKG BKG BKG 7.0 BKG BKG BKG BKG BKG 7.5 BKG BKG BKG BKG BKG 8.0 BKG BKG BKG BKG BKG 8.5 BKG BKG BKG BKG BKG 9.0 BKG BKG BKG BKG BKG 9.5 BKG BKG BKG BKG BKG 10.0 BKG BKG BKG BKG BKG DWD= Downwind Distance (miles)

WLOWMR= Waist Level Open Window Meter Reading WLCWMR= Waist Level Closed Window Meter Reading GLOWMR= Ground Level Open Window Meter Reading GLCWMR= Ground Level Closed Window Meter Reading ISCTOT= Iodine Sample Cartridge Total Count BKG= Background 126

Unclassified Radiological Emergency Preparedness Program (REP)

After Action Report/Improvement Plan Grand Gulf Nuclear Station STATE OF LOUISIANA GRAND GULF NUCLEAR STATION 11/1/2011 ATTACHMENT I OFFSITE PARTICIPANTS PLUME PHASE 127

Unclassified Radiological Emergency Preparedness Program (REP)

After Action Report/Improvement Plan Grand Gulf Nuclear Station STATE OF LOUISIANA GRAND GULF NUCLEAR STATION 11/1/2011 PLUME PHASE EXERCISE CONTROLLERS Lead Controller (LDEQ) Cheryl Chubb LDEQ Headquarters Controller State EOC Controller Ji Wiley EOF Controller Greg Gothard JIC Controller Jennifer Elee Tensas Parish Controller 128

Unclassified Radiological Emergency Preparedness Program (REP)

After Action Report/Improvement Plan Grand Gulf Nuclear Station This page is intentionally blank.

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